Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 423
Filter
1.
Braz. j. biol ; 84: e253599, 2024. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1355891

ABSTRACT

Abstract The antioxidant activity of Tetragonisca angustula honey (TAH) and its ethanolic extract (TAEE) were investigated. The total levels of phenolic (TPC) and flavonoids (TFC) were also evaluated. The results for TPC were 19.91 ± 0.38 and 29.37 ± 1.82 mg GAE g-1 and for TFC 0.20 ± 0.02 and 0.14 ± 0.01 mg QE g-1 of TAH and TAEE, respectively. Antioxidant activities were 73.29 ± 0.49% and 93.36 ± 0.27% in the DPPH● assay and 71.73 ± 4.07% and 97.86 ± 0.35% in ABTS●+ for TAH and TAEE, respectively. The total reducing activity was determined by the method of reducing power (PR) and iron ion (Fe III) and the results varied in PR from 151.7 ± 25.7 and 230.7 ± 25.2 mg GAE L-1, for TAH and TAEE respectively and for (Fe III) in EC50 0.284 in TAEE and 0.687 in TAH. Chemical analysis by HPLC-DAD of the ethanolic extract (TAEE) revealed the presence of ferulic acid as majority phenolic component in the extract. The 1H NMR analysis confirmed this structure and showed the also presence of glucose, citric acid, succinic acid, proline and hydrocarbon derivatives. In addition, the botanical origin was also investigated and showed a multifloral characteristic, having found 19 pollen types with a botanical predominance of the Anacardiaceae family, with Tapirira pollen occurring as predominant (42.6%) and Schinus as secondary (25.7%). The results showed that T. angustula honey is an interesting source of antioxidant phenolic compounds due to its floral origin and can act as a protector of human health when consumed.


Resumo A atividade antioxidante do mel de Tetragonisca angustula (TAH) e seu extrato etanólico (TAEE) foram investigados. Os níveis totais de fenólicos (TPC) e flavonóides (TFC) também foram avaliados. Os resultados para TPC foram 19,91 ± 0,38 e 29,37 ± 1,82 mg GAE g-1 e para TFC 0,20 ± 0,02 e 0,14 ± 0,01 mg QE g-1 de TAH e TAEE, respectivamente. As atividades antioxidantes foram 73,29 ± 0,49% e 93,36 ± 0,27% no ensaio DPPH● e 71,73 ± 4,07% e 97,86 ± 0,35% no ABTS●+ para TAH e TAEE, respectivamente. A atividade redutora total foi determinada pelo método de poder redutor (PR) e íon ferrico (Fe III) e os resultados variaram em PR de 151,7 ± 25,7 e 230,7 ± 25,2 mg GAE L-1, para TAH e TAEE respectivamente e para (Fe III) em EC50 0,284 em TAEE e 0,687 em TAH. A análise química por HPLC-DAD do extrato etanólico (TAEE) revelou a presença de ácido ferúlico como componente majoritário no extrato. A análise de RMN 1H confirmou esta estrutura e mostrou a presença de glicose, ácido cítrico, ácido succínico, prolina e derivados de hidrocarbonetos no TAEE. Além disso, a origem botânica também foi investigada e apresentou característica multifloral, tendo encontrado 19 tipos polínicos com predomínio botânico da família Anacardiaceae, sendo o pólen Tapirira predominante (42,6%) e o Schinus secundário (25,7%). Os resultados mostraram que o mel de T. angustula é uma interessante fonte de compostos fenólicos antioxidantes devido à sua origem floral e pode atuar como protetor da saúde humana quando consumido.


Subject(s)
Humans , Animals , Honey/analysis , Antioxidants , Phenols/analysis , Brazil , Coumaric Acids
2.
Braz. j. oral sci ; 22: e237560, Jan.-Dec. 2023. ilus
Article in English | LILACS, BBO | ID: biblio-1518750

ABSTRACT

Recurrent aphthous stomatitis (RAS) is recurrent and painful diseases of the oral mucosa that can be very painful and annoying despite their small size. There is no definitive cure for this disease and the usual treatments are mainly based on pain control. The aim of this study was to investigate the effect of honey-lemon spray (mucotin) in the treatment of recurrent aphthous stomatitis. Methods: This study is a randomized controlled clinical trial conducted in 2020 at Zahedan University of Medical Sciences on 46 RAS patients. The participants were randomly assigned to the intervention (mucotin) or control groups (Triamcinolone ointment) equally (23 patients in each group). Patients were evaluated for the severity of pain and ulcer size. Evaluations were performed on days 0, 2, 7 of the treatment using VAS. Data were analyzed using ANOVA statistical test. Results: The inner aspect of the lower lip was the most common site of RAS in the participants (48.8%) and the lowest site went for hard palate (2.4%). Four items including pain, burning sensation, necrosis area, and erythematous area were evaluated in both groups. There was no significant difference in all parameters before the treatment period (day 0). The mean pain score, burning sensation, necrosis, erythematous areas were not different in days 0, 2 and 7 between groups respectively (p=0.849, p=0.105, p=0.917, p=0.442). Conclusion: Honey-lemon spray (Mucotin) and topical corticosteroid have similar effects in RAS treating, So Mucotin can be used as the first line of treatment for RAS lesions. This herbal medicine has no side effects


Subject(s)
Humans , Male , Female , Stomatitis, Aphthous , Citrus , Oral Ulcer , Honey , Mouth Mucosa
3.
Braz. j. biol ; 83: e250373, 2023. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1339376

ABSTRACT

Abstract Honey is a suitable matrix for the evaluation of environmental contaminants including organochlorine insecticides. The present study was conducted to evaluate residues of fifteen organochlorine insecticides in honey samples of unifloral and multifloral origins from Dir, Pakistan. Honey samples (5 g each) were extracted with GC grade organic solvents and then subjected to Rotary Evaporator till dryness. The extracts were then mixed with n-Hexane (5 ml) and purified through Column Chromatography. Purified extracts (1μl each) were processed through Gas Chromatograph coupled with Electron Capture Detector (GC-ECD) for identification and quantification of the insecticides. Of the 15 insecticides tested, 46.7% were detected while 53.3% were not detected in the honey samples. Heptachlor was the most prevalent insecticide with a mean level of 0.0018 mg/kg detected in 80% of the samples followed by β-HCH with a mean level of 0.0016 mg/kg detected in 71.4% of the honey samples. Honey samples from Acacia modesta Wall. were 100% positive for Heptachlor with a mean level of 0.0048 mg/kg followed by β-HCH with a mean level of 0.003 mg/kg and frequency of 83.3%. Minimum levels of the tested insecticides were detected in the unifloral honey from Ziziphus jujuba Mill. Methoxychlor, Endosulfan, Endrin and metabolites of DDT were not detected in the studied honey samples. Some of the tested insecticides are banned in Pakistan but are still detected in honey samples indicating their use in the study area. The detected levels of all insecticides were below the Maximum Residue Levels (MRLs) and safe for consumers. However, the levels detected can cause mortality in insect fauna. The use of banned insecticides is one of the main factors responsible for the declining populations of important insect pollinators including honeybees.


Resumo O mel é uma matriz adequada para a avaliação de contaminantes ambientais, incluindo inseticidas organoclorados. O presente estudo foi conduzido para avaliar resíduos de 15 inseticidas organoclorados em amostras de mel de origem unifloral e multifloral de Dir, Paquistão. Amostras de mel (5 g cada) foram extraídas com solventes orgânicos de grau GC e, em seguida, submetidas ao evaporador rotativo até a secura. Os extratos foram então misturados com n-hexano (5 ml) e purificados por cromatografia em coluna. Os extratos purificados (1μl cada) foram processados através de cromatógrafo gasoso acoplado a detector de captura de elétrons (GC-ECD) para identificação e quantificação dos inseticidas. Dos 15 inseticidas testados, 46,7% foram detectados enquanto 53,3% não foram detectados nas amostras de mel. O heptacloro foi o inseticida mais prevalente com um nível médio de 0,0018 mg / kg detectado em 80% das amostras, seguido por β-HCH com um nível médio de 0,0016 mg / kg detectado em 71,4% das amostras de mel. Amostras de mel da parede de Acacia modesta foram 100% positivos para heptacloro com um nível médio de 0,0048 mg / kg seguido por β-HCH com um nível médio de 0,003 mg / kg e frequência de 83,3%. Níveis mínimos dos inseticidas testados foram detectados no mel unifloral de Ziziphus jujuba da usina. Metoxicloro, Endosulfan, Endrin e metabólitos do DDT não foram detectados nas amostras de mel estudadas. Alguns dos inseticidas testados são proibidos no Paquistão, mas ainda são detectados em amostras de mel, indicando seu uso na área de estudo. Os níveis detectados de todos os inseticidas estavam abaixo dos Níveis Máximos de Resíduos (MRLs) e seguros para os consumidores. No entanto, os níveis detectados podem causar mortalidade na fauna de insetos. O uso de inseticidas proibidos é um dos principais fatores responsáveis pelo declínio das populações de importantes insetos polinizadores, incluindo as abelhas.


Subject(s)
Animals , Pesticide Residues/analysis , Pesticide Residues/toxicity , Honey/analysis , Insecticides/toxicity , Bees , Environmental Biomarkers , Endosulfan/analysis
4.
Braz. j. biol ; 83: e246651, 2023. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1285627

ABSTRACT

Abstract The medicinal attributes of honey appears to overshadow its importance as a functional food. Consequently, several literatures are rife with ancient uses of honey as complementary and alternative medicine, with relevance to modern day health care, supported by evidence-based clinical data, with little attention given to honey's nutritional functions. The moisture contents of honey extracted from University of Veterinary and Animal Sciences, Lahore honey bee farm was 12.19% while that of natural source was 9.03 ± 1.63%. Similarly, ash and protein contents of farmed honey recorded were 0.37% and 5.22%, respectively. Whereas ash and protein contents of natural honey were 1.70 ± 1.98% and 6.10 ± 0.79%. Likewise fat, dietary fiber and carbohydrates contents of farmed source documented were 0.14%, 1.99% and 62.26% respectively. Although fat, dietary fiber and carbohydrates contents of honey taken from natural resource were 0.54 ± 0.28%, 2.76 ± 1.07% and 55.32 ± 2.91% respectively. Glucose and fructose contents of honey taken out from honeybee farm were 27% and 34% but natural source were 22.50 ± 2.12% and 28.50 ± 3.54%. Glucose and fructose contents of honey taken out from honeybee farm were 27% and 34% but natural source were 22.50 ± 2.12% and 28.50 ± 3.54%. Similarly, sucrose and maltose contents of farmed honey were 2.5% and 12% while in natural honey were 1.35 ± 0.49% and 8.00 ± 1.41% respectively. The present study indicates that such as moisture, carbohydrates, sucrose and maltose contents were higher farmed honey as compared to the natural honey. In our recommendation natural honey is better than farmed honey.


Resumo Os atributos medicinais do mel parecem ofuscar sua importância como alimento funcional. Consequentemente, várias literaturas estão repletas de usos antigos do mel como medicina complementar e alternativa, com relevância para os cuidados de saúde modernos, apoiados por dados clínicos baseados em evidências, com pouca atenção dada às funções nutricionais do mel. O teor de umidade do mel extraído da Universidade de Veterinária e Ciências Animais, fazenda de abelhas de Lahore, foi de 12,19%, enquanto o de fonte natural foi de 9,03 ± 1,63%. Da mesma forma, os teores de cinzas e proteínas do mel cultivado foram de 0,37% e 5,22%, respectivamente. Já os teores de cinzas e proteínas do mel natural foram de 1,70 ± 1,98% e 6,10 ± 0,79%. Da mesma forma, os teores de gordura, fibra dietética e carboidratos de origem cultivada documentados foram de 0,14%, 1,99% e 62,26%, respectivamente. Embora os teores de gordura, fibra alimentar e carboidratos do mel retirado dos recursos naturais fossem de 0,54 ± 0,28%, 2,76 ± 1,07% e 55,32 ± 2,91%, respectivamente. Os conteúdos de glicose e frutose do mel retirado da fazenda de abelhas foram de 27% e 34%, mas a fonte natural foi de 22,50 ± 2,12% e 28,50 ± 3,54%. Os conteúdos de glicose e frutose do mel retirado da fazenda de abelhas foram de 27% e 34%, mas a fonte natural foi de 22,50 ± 2,12% e 28,50 ± 3,54%. Da mesma forma, os teores de sacarose e maltose no mel cultivado foram de 2,5% e 12%, enquanto no mel natural foram de 1,35 ± 0,49% e 8,00 ± 1,41%, respectivamente. O presente estudo indica que os teores de umidade, carboidratos, sacarose e maltose foram maiores no mel cultivado em comparação ao mel natural. Em nossa recomendação, o mel natural é melhor que o mel de cultivo.


Subject(s)
Animals , Honey , Bees , Carbohydrates
5.
Braz. j. biol ; 83: 1-6, 2023. map, tab
Article in English | LILACS, VETINDEX | ID: biblio-1468855

ABSTRACT

The medicinal attributes of honey appears to overshadow its importance as a functional food. Consequently, several literatures are rife with ancient uses of honey as complementary and alternative medicine, with relevance to modern day health care, supported by evidence-based clinical data, with little attention given to honey’s nutritional functions. The moisture contents of honey extracted from University of Veterinary and Animal Sciences, Lahore honey bee farm was 12.19% while that of natural source was 9.03 ± 1.63%. Similarly, ash and protein contents of farmed honey recorded were 0.37% and 5.22%, respectively. Whereas ash and protein contents of natural honey were 1.70 ± 1.98% and 6.10 ± 0.79%. Likewise fat, dietary fiber and carbohydrates contents of farmed source documented were 0.14%, 1.99% and 62.26% respectively. Although fat, dietary fiber and carbohydrates contents of honey taken from natural resource were 0.54 ± 0.28%, 2.76 ± 1.07% and 55.32 ± 2.91% respectively. Glucose and fructose contents of honey taken out from honeybee farm were 27% and 34% but natural source were 22.50 ± 2.12% and 28.50 ± 3.54%. Glucose and fructose contents of honey taken out from honeybee farm were 27% and 34% but natural source were 22.50 ± 2.12% and 28.50 ± 3.54%. Similarly, sucrose and maltose contents of farmed honey were 2.5% and 12% while in natural honey were 1.35 ± 0.49% and 8.00 ± 1.41% respectively. The present study indicates that such as moisture, carbohydrates, sucrose and maltose contents were higher farmed honey as compared to the natural honey. In our recommendation natural honey is better than farmed honey.


Os atributos medicinais do mel parecem ofuscar sua importância como alimento funcional. Consequentemente, várias literaturas estão repletas de usos antigos do mel como medicina complementar e alternativa, com relevância para os cuidados de saúde modernos, apoiados por dados clínicos baseados em evidências, com pouca atenção dada às funções nutricionais do mel. O teor de umidade do mel extraído da Universidade de Veterinária e Ciências Animais, fazenda de abelhas de Lahore, foi de 12,19%, enquanto o de fonte natural foi de 9,03 ± 1,63%. Da mesma forma, os teores de cinzas e proteínas do mel cultivado foram de 0,37% e 5,22%, respectivamente. Já os teores de cinzas e proteínas do mel natural foram de 1,70 ± 1,98% e 6,10 ± 0,79%. Da mesma forma, os teores de gordura, fibra dietética e carboidratos de origem cultivada documentados foram de 0,14%, 1,99% e 62,26%, respectivamente. Embora os teores de gordura, fibra alimentar e carboidratos do mel retirado dos recursos naturais fossem de 0,54 ± 0,28%, 2,76 ± 1,07% e 55,32 ± 2,91%, respectivamente. Os conteúdos de glicose e frutose do mel retirado da fazenda de abelhas foram de 27% e 34%, mas a fonte natural foi de 22,50 ± 2,12% e 28,50 ± 3,54%. Os conteúdos de glicose e frutose do mel retirado da fazenda de abelhas foram de 27% e 34%, mas a fonte natural foi de 22,50 ± 2,12% e 28,50 ± 3,54%. Da mesma forma, os teores de sacarose e maltose no mel cultivado foram de 2,5% e 12%, enquanto no mel natural foram de 1,35 ± 0,49% e 8,00 ± 1,41%, respectivamente. O presente estudo indica que os teores de umidade, carboidratos, sacarose e maltose foram maiores no mel cultivado em comparação ao mel natural. Em nossa recomendação, o mel natural é melhor que o mel de cultivo.


Subject(s)
Bees , Honey/analysis
6.
Braz. j. biol ; 83: 1-8, 2023. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1468948

ABSTRACT

Honey is a suitable matrix for the evaluation of environmental contaminants including organochlorine insecticides. The present study was conducted to evaluate residues of fifteen organochlorine insecticides in honey samples of unifloral and multifloral origins from Dir, Pakistan. Honey samples (5 g each) were extracted with GC grade organic solvents and then subjected to Rotary Evaporator till dryness. The extracts were then mixed with n-Hexane (5 ml) and purified through Column Chromatography. Purified extracts (1μl each) were processed through Gas Chromatograph coupled with Electron Capture Detector (GC-ECD) for identification and quantification of the insecticides. Of the 15 insecticides tested, 46.7% were detected while 53.3% were not detected in the honey samples. Heptachlor was the most prevalent insecticide with a mean level of 0.0018 mg/kg detected in 80% of the samples followed by β-HCH with a mean level of 0.0016 mg/kg detected in 71.4% of the honey samples. Honey samples from Acacia modesta Wall. were 100% positive for Heptachlor with a mean level of 0.0048 mg/kg followed by β-HCH with a mean level of 0.003 mg/kg and frequency of 83.3%. Minimum levels of the tested insecticides were detected in the unifloral honey from Ziziphus jujuba Mill. Methoxychlor, Endosulfan, Endrin and metabolites of DDT were not detected in the studied honey samples. Some of the tested insecticides are banned in Pakistan but are still detected in honey samples indicating their use in the study area. The detected levels of all insecticides were below the Maximum Residue Levels (MRLs) and safe for consumers. However, the levels detected can cause mortality in insect fauna. The use of banned insecticides is one of the main factors responsible for the declining populations of important insect pollinators including honeybees.


O mel é uma matriz adequada para a avaliação de contaminantes ambientais, incluindo inseticidas organoclorados. O presente estudo foi conduzido para avaliar resíduos de 15 inseticidas organoclorados em amostras de mel de origem unifloral e multifloral de Dir, Paquistão. Amostras de mel (5 g cada) foram extraídas com solventes orgânicos de grau GC e, em seguida, submetidas ao evaporador rotativo até a secura. Os extratos foram então misturados com n-hexano (5 ml) e purificados por cromatografia em coluna. Os extratos purificados (1μl cada) foram processados através de cromatógrafo gasoso acoplado a detector de captura de elétrons (GC-ECD) para identificação e quantificação dos inseticidas. Dos 15 inseticidas testados, 46,7% foram detectados enquanto 53,3% não foram detectados nas amostras de mel. O heptacloro foi o inseticida mais prevalente com um nível médio de 0,0018 mg / kg detectado em 80% das amostras, seguido por β-HCH com um nível médio de 0,0016 mg / kg detectado em 71,4% das amostras de mel. Amostras de mel da parede de Acacia modesta foram 100% positivos para heptacloro com um nível médio de 0,0048 mg / kg seguido por β-HCH com um nível médio de 0,003 mg / kg e frequência de 83,3%. Níveis mínimos dos inseticidas testados foram detectados no mel unifloral de Ziziphus jujuba da usina. Metoxicloro, Endosulfan, Endrin e metabólitos do DDT não foram detectados nas amostras de mel estudadas. Alguns dos inseticidas testados são proibidos no Paquistão, mas ainda são detectados em amostras de mel, indicando seu uso na área de estudo. Os níveis detectados de todos os inseticidas estavam abaixo dos Níveis Máximos de Resíduos (MRLs) e seguros para os consumidores. No entanto, os níveis detectados podem causar mortalidade na fauna de insetos. O uso de inseticidas proibidos é um dos principais fatores responsáveis pelo declínio das populações de importantes insetos polinizadores, incluindo as abelhas.


Subject(s)
Insecticides, Organochlorine/analysis , Honey/analysis , Environmental Pollution
7.
Braz. J. Pharm. Sci. (Online) ; 58: e20607, 2022. tab, graf
Article in English | LILACS | ID: biblio-1420427

ABSTRACT

Abstract The main aim of the paper is to assess whether vitamin C, vitamin D, and natural honey can be administered in the course of the COVID-19 pandemic for promising in line methods with recent evidence. Both systematic literature and clinical trial identification were conducted by searching various databases. A total 58 articles and 29 clinical trials were selected wherein 11 for vitamin C, 16 for vitamin D, and 2 for natural honey were identified for analysis. The high doses of vitamin C (i.e. '200 mg/kg body weight/day, divided into 4 doses') has been found to reduce COVID-19 lung damage, various flu infections. Additionally, the high doses of vitamin C can shorten around 7.8% stay in the intensive care unit. At the same time, vitamin D can effectively protect from lung injury and acute respiratory infections whereas vitamin D deficiency severely affects 75% of the institutionalized people (serum 25(OH) D < 25 nmol/L). Meanwhile, natural honey which contains proteins (0.1-0.4%); ash (0.2%); water (15-17%) has potential antiviral effects and the ability to improve immunity. Therefore, the administration of vitamins and honey is the promising evidence-based approach for reducing fatalities, saving lives, and bringing the COVID-19 pandemic to a rapid end. It is believed that the utilization of vitamin C, vitamin D, and natural honey with the current treatment may be effective in treating COVID-19-caused fatal complications such as pneumonia. Therefore, high-level clinical studies are required on COVID-19 to administrate the effects of vitamins and natural honey


Subject(s)
Vitamins/adverse effects , COVID-19 Drug Treatment/classification , Honey/adverse effects , Antiviral Agents/administration & dosage , Pneumonia/complications , Ascorbic Acid/adverse effects , Vitamin D/adverse effects , COVID-19/prevention & control
8.
Rev. Asoc. Colomb. Cien. Biol. (En línea) ; 1(34): 105-121, 2022. ilus, tab
Article in Spanish | LILACS, COLNAL | ID: biblio-1412117

ABSTRACT

Introducción: Para la comercialización y mercadeo es importante determinar el origen botánico y geográfico mediante estudios polínico de mieles colectados por Apis mellifera (A. mellifera). Objetivo: efectuar un análisis polínico en muestras de mieles del departamento del Cauca, Colombia colectada por A. mellifera. Materiales y métodos. Las muestras de mieles fueron tomas en 11 apiarios durante 12 meses (2014-2015) en los municipios de Timbio, Totoró y Piendamó, se tomaron ejemplares de herbario de las plantas melíferas a 2Km a la redonda de los apiarios. Resultados. Se identificaron 110 tipos polínicos inmersos en las mieles, de los cuales la guayaba (Psidium guajava - Mirtaceae) con un 64% fue el tipo más frecuente para el municipio de Totoró, limpia dientes (Gouania polígama - Ramnaceae) con un 18,2% y 46% en Piendamó y Timbio, respectivamente. El resto de tipos polínicos se encuentran en menores proporciones. Conclusiones. Los análisis polínicos demuestran que las mieles colectadas durante la investigación se clasifican como poliflorales por la alta variedad de plantas cultivadas y silvestres que conservan y cultivan los apicultores del Cauca.


Introduction: For the commercialization and marketing of honeys it is important to determine the botanical and geographical origin through pollen studies of honeys collected by Apis mellifera (A. mellifera). Objective: to carry out a pollen analysis on honey samples from the department of Cauca, Colombia collected by A. mellifera. Materials and methods The honeys samples were taken in 11 apiaries during 12 months (2014-2015) to the municipalities of Timbio, Totoró and Piendamó. Moreover, specimens of herbarium were taken from melliferous plants at 2Km from the apiaries. Results: There were identified 86 pollen types immersed in honeys, of which in guava (Psidium guajava - Mirtaceae) with 64% was the most frequent type for the municipality of Totoró. Limpiadientes (Gouania polygama - Ramnaceae) with 18.2% and 46% in Piendamó and Timbio respectively. The rest of the pollen types were found in smaller proportions. Conclusion. The pollen analyses indicated that the honeys collected during the investigation are classified as polyfloral by the high variety of plants cultivated and wild that conserve and cultivate the beekeepers of Cauca.


Subject(s)
Animals , Bees , Honey
9.
Health SA Gesondheid (Print) ; 27(NA): 1-2, 2022. figures, tables
Article in English | AIM | ID: biblio-1401125

ABSTRACT

Background: The current coronavirus disease 2019 (COVID-19) pandemic has been of global concern as it has affected the health of many and the economies of nations. In order to strengthen the immune system against COVID-19, certain plant-source foods were consumed. Aim: This study was designed to identify and compare various special foods and drinks consumed to prevent COVID-19 during the lockdown in various sub-Saharan countries in comparison to South Africa (SA), as well as highlighting some current dietary recommendations. Setting: Online cross-sectional survey in six African countries, namely South Africa, Cameroon, Nigeria, Ghana, Ethiopia and Kenya. Methods: After sample size determination, an online questionnaire was designed and content validated. The survey link was pretested on 25 people and then circulated for 6 weeks during total lockdown. The proportion of responses for each question were reported using descriptive statistics. Results: Half of the 817 participants surveyed were not consuming anything special for COVID-19 prevention. South Africans mostly reported the consumption of supplements or conventional medicines (mainly vitamin C and zinc) while for other countries, a variety of natural foods and drinks were mentioned ­ some having already proved helpful in boosting immune systems. They included infusions of spices with or without honey, fruits and vegetables, medicinal drinks and local beverages. Conclusion: Programmes and campaigns designed to increase awareness of dietary measures for COVID-19 prevention have proved beneficial and should be promoted. Analytical evaluation of the nutritional and health benefits and antiviral potentials of the identified special foods would help in determining which foods to prioritise and promote in the fight against COVID-19. Contribution: This study shows the possibility of finding dietary solutions for managing the pandemic and 'preventive' potentials of certain plant substances.


Subject(s)
Immunization, Secondary , Whole Foods , Disease Prevention , COVID-19 , Beverages , Spices , Fruit , Honey
10.
Journal of Integrative Medicine ; (12): 114-125, 2022.
Article in English | WPRIM | ID: wpr-929219

ABSTRACT

BACKGROUND@#Propolis and honey have been studied as alternative treatments for patients with coronavirus disease 2019 (COVID-19). However, no study has yet summarized the full body of evidence for the use of propolis and honey in COVID-19 prevention and treatment.@*OBJECTIVE@#This study systematically reviews the mechanisms of propolis and honey against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and current evidence for the use of propolis and honey in COVID-19 prevention and treatment.@*SEARCH STRATEGY@#A systematic search was conducted of electronic databases including PubMed, Scopus, ScienceDirect, and Cochrane Library from their inceptions to April 2021.@*INCLUSION CRITERIA@#Studies that evaluated the effect of propolis or bee products against SARS-CoV-2 using in silico methods, clinical studies, case reports and case series were included.@*DATA EXTRACTION AND ANALYSIS@#A standardized data extraction form was used, and data were extracted by two independent reviewers. Narrative synthesis was used to summarize study results concerning the use of propolis or honey in COVID-19 prevention and treatment and their potential mechanisms of action against SARS-CoV-2.@*RESULTS@#A total of 15 studies were included. Nine studies were in silico studies, two studies were case reports, one study was a case series, and three studies were randomized controlled trials (RCTs). In silico studies, using molecular docking methods, showed that compounds in propolis could interact with several target proteins of SARS-CoV-2, including angiotensin-converting enzyme 2, the main protease enzyme, RNA-dependent RNA polymerase, and spike protein. Propolis may have a positive effect for clinical improvement in mild and moderate-to-severe COVID-19 patients, according to case reports and case series. The included RCTs indicated that propolis or honey could probably improve clinical symptoms and decrease viral clearance time when they were used as adjuvant therapy to standard of care.@*CONCLUSION@#In silico studies showed that compounds from propolis could interact with target proteins of SARS-CoV-2, interfering with viral entry and viral RNA replication, while clinical studies revealed that propolis and honey could probably improve clinical COVID-19 symptoms and decrease viral clearance time. However, clinical evidence is limited by the small number of studies and small sample sizes. Future clinical studies are warranted.


Subject(s)
Humans , COVID-19/drug therapy , Honey , Propolis/therapeutic use , Randomized Controlled Trials as Topic , SARS-CoV-2
12.
Int. j. morphol ; 39(6): 1701-1708, dic. 2021. ilus
Article in English | LILACS | ID: biblio-1385518

ABSTRACT

SUMMARY: The role of fibroblast growth factor (FGF) in the wound repair process has been described, particularly during the stimulation of angiogenesis in the proliferative phase. Ulmo honey (Eucryphia cordifolia) has demonstrated important bactericidal, fungicidal, antioxidant and healing properties. Ulmoplus®, a honey-based medicinal product, accelerates healing time and promotes fibroblast activation and collagen fiber production. The aim of this study was to evaluate the immunohistochemical expression of endogenous FGF-2 in burns treated with Ulmoplus® vs. the gold standard (hydrogel-tull), and Ulmo honey as the first step to clarifying the regulatory mechanism of this therapeutic option. 15 adult guinea pigs (Cavia porcellus) were used, divided into three groups: C+: positive control treated with hydrogel-tull (gold standard); E1: experimental group treated with Ulmo; and E2: experimental group treated with Ulmoplus®. A deep uniform burn was made under anesthetic that covered 1 cm2 of the skin on the back of each animal. The daily treatments were administered with hydrogel-tull, Ulmo honey or Ulmoplus®, where appropriate. On treatment day 10 the biopsies were taken and processed for histological and immunohistochemical analysis. The immunolabeling was quantified through an integrated optical density (IOD) analysis, expressed as lum/ µm2 using the Image- ProPremier 9.1 software. The endogenous expression of FGF-2 was consistent with the stage of healing presented by the study groups, varying in its localization and IOD intensity. The E2 group presented a significantly higher IOD (60053.55 ± 59877.84 lum/µm2) than the C+ (p = 0.001) and E1 (p = 0.001) groups. Our findings indicated that the medicinal Ulmoplus® honey is effective at facilitating wound closing, and the promoter effect of FGF-2 expression accelerated the healing process compared to the treatments with hydrogel-tull (gold standard) and Ulmo honey.


RESUMEN: Se ha descrito el papel del factor de crecimiento fibroblaástico (FGF) en el proceso de reparación de heridas, particularmente durante la estimulación de la angiogénesis en la fase proliferativa. La miel de Ulmo (Eucryphia cordifolia) ha demostrado importantes propiedades bactericidas, fungicidas, antioxidantes y cicatrizantes. Ulmoplus®, un medicamento a base de miel, acelera el tiempo de cicatrización y promueve la activación de fibroblastos y la producción de fibras colágenas. El objetivo de este estudio fue evaluar la expresión inmunohistoquímica del FGF-2 endógeno en quemaduras tratadas con Ulmoplus® frente al gold standard (hidrogel-tull) y miel de Ulmo como primer paso para esclarecer el mecanismo regulador de esta opción terapéutica. Se utilizaron 15 cobayas adultos (Cavia porcellus), divididos en tres grupos: C +: control positivo tratado con hidrogel-tull (gold standard); E1: grupo experimental tratado con Ulmo; y E2: grupo experimental tratado con Ulmoplus®. Se realizó una quemadura profunda uniforme bajo anestesia que cubrió 1 cm2 de la piel del lomo de cada animal. Los tratamientos diarios se administraron con hidrogel-tull, miel de Ulmo o Ulmoplus®, en cada caso. El día 10 de tratamiento se tomaron biopsias y se procesaron para análisis histológico e inmunohistoquímico. El inmunomarcaje se cuantificó mediante análisis de densidad óptica integrado (DOI), expresado como lum/µm2 utilizando el software Image-ProPremier 9.1. La expresión endógena de FGF-2 fue consistente con la etapa de cicatrización presentada por los grupos de estudio, variando en su localización e intensidad de DOI. El grupo E2 presentó una DOI significativamente mayor (60053,55 ± 59877,84 lum/µm2) que los grupos C + (p = 0,001) y E1 (p = 0,001). Nuestros hallazgos indicaron que la miel de uso médico Ulmoplus® es eficaz para facilitar el cierre de heridas, y el efecto promotor de la expresión de FGF-2 aceleró el proceso de curación en comparación con los tratamientos con hidrogel-tull (gold standard) y miel de Ulmo.


Subject(s)
Animals , Guinea Pigs , Wound Healing/physiology , Burns , Fibroblast Growth Factors/metabolism , Honey , Immunohistochemistry
13.
Bol. latinoam. Caribe plantas med. aromát ; 20(6): 575-597, nov. 2021. ilus, tab
Article in English | LILACS | ID: biblio-1369745

ABSTRACT

This study investigated the antibacterial potential of Euphorbia hirtawhole plant extracts, honey and conventional antibiotics and their synergistic effects against selected multidrug resistant and typed bacterial strains associated with otitis media. E. hirtawhole plant extract was purified using column chromatography technique. The antibacterial assays of extracts were done using standard microbiological procedures. Protein, sodium and potassium ion leakage of the synergistic mixtures was determined using flame-photometry. At 100 mg/ml, acetone extracts presented highest inhibition against S. aureus (NCTC 6571) with 32 ± 0.83 mm zone of inhibition. The fractional inhibitory concentration indices displayed higher synergism in combination of plant extract, honey and ciprofloxacin against P. mirabilisat 0.02 compared to drug combination synergy standard (≤ 0.5). This work revealed augmentation of ciprofloxacin potency when combined with purified E. hirta acetone extract and honey and implies their high potential in the treatment of multidrug resistant infectionof otitis media.


Este estudio investigó el potencial antibacteriano de extractos de plantas enteras de Euphorbia hirta, miel y antibióticos convencionales y sus efectos sinérgicos contra cepas bacterianas seleccionadas multirresistentes y tipificadas asociadas con la otitis media. El extracto de la planta entera de E. hirtase purificó usando la técnica de cromatografía en columna. Los ensayos antibacterianos de extractos se realizaron utilizando procedimientos microbiológicos estándar. La fuga de iones de proteínas, sodio y potasio de las mezclas sinérgicas se determinó mediante fotometría de llama. A 100 mg/ml, los extractos de acetona presentaron la mayor inhibición contra S. aureus (NCTC 6571) con una zona de inhibición de 32 ± 0,83 mm. Los índices de concentración inhibitoria fraccional mostraron un mayor sinergismo en combinación de extracto de planta, miel y ciprofloxacina contra P. mirabilisa 0,02 en comparación con el estándar de sinergia de combinación de fármacos (≤ 0,5). Este trabajo reveló un aumento de la potencia de la ciprofloxacina cuando se combina con extracto de acetona purificado de E. hirtay miel e implica sualto potencial en el tratamiento de infecciones de otitis media resistentes a múltiples fármacos.


Subject(s)
Humans , Otitis Media/drug therapy , Plant Extracts/therapeutic use , Euphorbia/chemistry , Anti-Bacterial Agents/therapeutic use , Proteus mirabilis/drug effects , Staphylococcus aureus/drug effects , Terpenes/analysis , Flavonoids/analysis , Plant Extracts/pharmacology , Ciprofloxacin/pharmacology , Microbial Sensitivity Tests , Flame Emission Photometry , Chromatography, Thin Layer , Drug Resistance, Multiple , Drug Synergism , Glycosides/analysis , Honey , Gas Chromatography-Mass Spectrometry , Anti-Bacterial Agents/pharmacology
14.
Rev. bras. ciênc. vet ; 28(2): 117-123, abr./jun. 2021. il.
Article in English | LILACS, VETINDEX | ID: biblio-1367942

ABSTRACT

The Mercosur Technical Regulation for honey determines microbiological parameters for total coliforms and molds and/ yeasts, and absence of physical contaminants, of any nature. The purpose of this study was to verify the biological and physical contamin of Apis mellifera ligustica and Melipona fasciculata, commercialized in the northeastern region of the State of Pará, Brazil. The fourteen samples from informal trade of the municipalities of Bragança, Capanema, Nova Timboteua, São João de Pirabas, Salinas and Tracauateua were analyzed for the Most Probable Number of colifroms at 35ºC, Fungus and Yeast counts, besides the detection of dirt by Macro and Microscopy techniques. The results obtained from the microbiological analyzes were compared to the standard required by MERCOSUR, for coliforms. 57.14% of the samples were non-standard and ranged from <3.0 NMP/g to 20 NMP/g. The molds and/ yeast counts ranged from 1x10¹ CFU/g to 8.6x10² CFU/g, with atotal of 21.42% of the samples being in disagreement with the legislation. From the macroscopic analysis, it was observed that, although 50% of the samples did not present any apparent dirt, microscopically it was possible to observe dirt in 100% of the samples of honey analyzed, which is out of the standard required by the Brazilian legislation. This shows the low sanitary quality of honey commercialized in this region of the state of Pará.


O Regulamento Técnico do Mercosul para mel, determina parâmetros microbiológicos para coliformes totais e fungos e/leveduras, e ausência de contaminantes físicos, de qualquer natureza. A proposta do presente estudo foi verificar a contaminação biológica e física em méis de abelha das espécies Apis mellifera ligustica e Melipona fasciculata, comercializados na região Nordeste do Estado do Pará, Brasil. As amostras provenientes do comercio informal dos de municípios de, Bragança, Capanema, Nova Timboteua, São João de Pirabas, Salinas e Tracauateua, foram analisadas quanto a determinação do Número Mais Provável de coliformes a 35ºC, Contagem de Fungos e/leveduras, além da detecção de sujidades pelas técnicas de Macro e Microscopia. Os resultados obtidos a partir das análises microbiológicas foram comparadas ao padrão exigido pelo MERCOSUL, para coliformes, 57,14% das amostras encontravam-se fora do padrão variaram de <3,0 NMP/g a 20NMP/g. Já a contagem de fungos e/leveduras variou de 1x10¹ UFC/g a 8,6x10² UFC/g, no total de 21,42 % das amostras apresentaram-se em desacordo com a legislação. A partir da análise macroscópica observou-se que, embora 50% das amostras não apresentassem sujidades aparentes, porém microscopicamente foi possível observar a presença sujidades em 100% das amostras de méis analisadas encontrando-se fora do padrão exigido pela legislação Brasileira. Demostrando a baixa qualidade sanitária do mel comercializado nessa região do estado do Pará.


Subject(s)
Food Analysis/methods , Food Microbiology , Honey/analysis , Food Contamination/analysis , Physical Contaminants/analysis , Coliforms , Fungi
15.
Arq. bras. med. vet. zootec. (Online) ; 73(1): 162-168, Jan.-Feb. 2021. tab, graf, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1153064

ABSTRACT

Aedes aegypti is the vector of several viral diseases. The main way to control these diseases is to fight the vector. Thus, it is necessary to breed mosquitoes in the laboratory in order to develop strategies to control these insects. In laboratories, different carbohydrates are used for feeding mosquitoes. The aim of this study is to evaluate the longevity and the weight of Ae. aegypti fed with different carbohydrates diets. As methods, 120 mosquitoes were distributed in insectaries and each group received a different diet, based on honey, dextrose or maltodextrin. To assess the longevity, survival analysis was performed using the Long Rank test and chi square test. To assess the weight, the dead insects were frozen and weighed at the end of the experiment. As results it was observed that mosquitoes fed with the honey, maltodextrin and dextrose diet lived on average 33, 35 and 47 days respectively. When weight was assessed, mosquitoes fed with honey weighed 125 ± (35.3) µg, while those fed with dextrose and maltodextrin weighed 225 ± (35.3) µg and 275 ± (35.3) µg respectively. The results show that the intake of dextrose and maltodextrin by Ae. aegypti adults increases their survival and their weight.(AU)


O Aedes aegypti é vetor de várias doenças virais. A principal maneira de controlar essas doenças é combatendo o seu vetor. Nesse sentido, é necessário criar esses mosquitos em laboratório, visando desenvolver estratégias de controle. Nos laboratórios, diferentes carboidratos são utilizados na alimentação de mosquitos. O objetivo deste estudo é avaliar longevidade e peso de Ae. aegypti alimentados com diferentes fontes de carboidratos. Como método, distribuíram-se 120 mosquitos insetários. Cada grupo recebeu uma dieta diferente à base de mel, dextrose ou maltodextrina. Para avaliar a longevidade, a análise de sobrevida foi realizada pelo teste de Logrank e pelo teste de qui quadrado. Para avaliar o peso, os insetos mortos foram congelados e pesados ​​no final do experimento. Como resultado, observou-se que os mosquitos alimentados com a dieta à base de mel, maltodextrina e dextrose viveram em média 33, 35 e 47 dias, respectivamente. Com relação ao peso, os mosquitos alimentados com mel pesavam 125 ± (35,3)µg, enquanto os alimentados com dextrose e maltodextrina pesavam 225 ± (35,3)µg e 275 ± (35,3)µg, respectivamente. Os resultados mostram que a ingestão de dieta à base de dextrose e maltodextrina por Ae. aegypti adultos aumenta sua sobrevivência e seu peso.(AU)


Subject(s)
Animals , Aedes/growth & development , Aedes/metabolism , Dextrins/administration & dosage , Diet, Carbohydrate Loading/methods , Glucose/administration & dosage , Honey , Weight Gain , Survival Analysis
16.
Biosci. j. (Online) ; 37: e37089, Jan.-Dec. 2021. ilus, graf
Article in English | LILACS | ID: biblio-1359407

ABSTRACT

Anthracnose is a foliar and fruit disease caused by Colletotrichum spp. affecting a wide range of crops. Infection occurs early followed by quiescence in fruits, such as in banana, where chemical-based pesticides are used as a dependable fungal control for many years. There is an increasing need for a safe control and as implicated in the Organic Agriculture Act of 2010 (RA 10068) in the Philippines. This scenario drove the use of alternative pest control such as the use of biologicals and natural products. In this study, seven bacteria were isolated from wild honey, produced by Apis mellifera, wherein four (BC2, BC3, BC6 and BC7) were found to be an effective antagonist against Colletotrichum musae in in vitro conditions. These bacteria were identified to belong to the genus Lactobacillus spp. (BC2, BC3, BC7) and Bacillus spp. (BC6) based on sugar utilization tests, morphological and cultural growth in PDPA. For the in vivo test, different dilutions of wild honey were used and it was found out that lower concentrations were effective as biopesticide spray to prevent anthracnose infection. Lastly, we report herewith the first isolation of bacteria with biological control potential from wild honey, and to apply the raw or natural product as biopesticide in postharvest fruits.


Subject(s)
Pest Control, Biological , Colletotrichum/pathogenicity , Honey
17.
Semina cienc. biol. saude ; 42(1): 71-80, jan./jun. 2021. Tab
Article in Portuguese | LILACS | ID: biblio-1247939

ABSTRACT

O mel de abelha é um produto de consumo relevante pela população devido aos seus fatores nutricionais e terapêuticos. A adulteração é um exemplo de como as características do mel podem ser afetadas, prejudicando os consumidores que desejam comprar produtos puros e de alta qualidade. Este trabalho teve como objetivo avaliar a qualidade físico-química do mel de abelha comercializado em Brasília, Distrito Federal. Foram obtidas 13 amostras de mel de abelhas: uma de um apicultor da região com certificação de produção (usada como controle negativo), seis de lojas de produtos naturais e hipermercados no centro de Brasília e seis de feira livre e pequenos estabelecimentos de uma região administrativa do Distrito Federal, das quais cinco não tinham o selo do Serviço de Inspeção Federal (SIF) na embalagem. Também foi usada uma amostra comercial de xarope de glicose como controle positivo. Para verificar a adulteração, foram adotados os testes de Lund, Fiehe e Lugol, bem como as análises de pH, acidez titulável e umidade, para serem comparados com os parâmetros de qualidade do mel estabelecidos pela legislação vigente. As análises verificaram a qualidade dos méis comercializados com o selo SIF, com algumas ressalvas para a possível alteração de temperatura. Já as que não possuíam selo, apenas uma foi aprovada nos testes de qualidade, porém sua venda não é regularizada. A maioria das amostras analisadas apresentaram resultados consistentes com os padrões exigidos pela legislação vigente, com maiores irregularidades na comercialização de méis em feira livre, mostrando a necessidade de maior controle de qualidade e inspeção de produtos não certificados.(AU)


Bee honey is a product of relevant consumption by the population due to its nutritional and therapeutic factors. Tampering is an example of how honey characteristics can be affected and harming consumers who want to buy a high quality and pure product. This work aimed to evaluate the physicochemical quality of bee honey commercialized in Brasília, Federal District. Thirteen samples of bee honey were obtained: one from a certified local beekeeper (used as a negative control), six from natural products and hypermarkets in central Brasília and six from street fair and small establishments in one of the administrative region of the Federal District, of which five did not have the seal of the Federal Inspection Service (SIF) on the packaging. Also, a sample of commercial glucose syrup was used as positive control. To verify tampering, the Lund, Fiehe and Lugol tests were adopted, as well as the pH, titratable acidity and humidity analysis, to be compared honey quality parameters established by the current legislation. The analyzes verified the quality of the honeys sold with SIF seal, with some restraints for the possible temperature changes. As for those that did not have a seal, only one passed the quality tests, but its sale is not regularized. Most of the samples analyzed showed results consistent with the standards requirements of the current legislation, with greater irregularities in the marketing of honey in street fair, showing the need for greater quality control and inspection of non-certified products.(AU)


Subject(s)
Animals , Bees , Honey , Quality Control , Product Packaging
18.
Biol. Res ; 54: 16-16, 2021. graf, ilus
Article in English | LILACS | ID: biblio-1505809

ABSTRACT

BACKGROUND: Recently, there is increasing awareness focused on the identification of naturally occurring anticancer agents derived from natural products. Manuka honey (MH) has been recognized for its biological properties as antimicrobial, antioxidant, and anticancer properties. However, its antiproliferative mechanism in hepatocellular carcinoma is not investigated. The current study focused mainly on investigating the molecular mechanism and synergistic effect of anticancer properties of MH on Doxorubicin (DOX)-mediated apoptotic cell death, using two different p53 statuses (HepG2 and Hep3B) and one non-tumorigenic immortalized liver cell line. RESULTS: MH treatment showed a proliferative inhibitory effect on tested cells in a dose-dependent manner with IC50 concentration of (6.92 ± 0.005%) and (18.62 ± 0.07%) for HepG2 and Hep3B cells, respectively, and induced dramatic morphological changes of Hep-G2 cells, which considered as characteristics feature of apoptosis induction after 48 h of treatment. Our results showed that MH or combined treatments induced higher cytotoxicity in p53-wild type, HepG2, than in p53-null, Hep3B, cells. Cytotoxicity was not observed in normal liver cells. Furthermore, the synergistic effect of MH and Dox on apoptosis was evidenced by increased annexin-V-positive cells and Sub-G1 cells in both tested cell lines with a significant increase in the percentage of Hep-G2 cells at late apoptosis as confirmed by the flow cytometric analysis. Consistently, the proteolytic activities of caspase-3 and the degradation of poly (ADP-ribose) polymerase were also higher in the combined treatment which in turn accompanied by significant inhibitory effects of pERK1/2, mTOR, S6K, oncogenic ß-catenin, and cyclin D1 after 48 h. In contrast, the MH or combined treatment-induced apoptosis was accompanied by significantly upregulated expression of proapoptotic Bax protein and down-regulated expression of anti-apoptotic Bcl-2 protein after 48 h. CONCLUSIONS: Our data showed a synergistic inhibitory effect of MH on DOX-mediated apoptotic cell death in HCC cells. To our knowledge, the present study provides the first report on the anticancer activity of MH and its combined treatment with DOX on HCC cell lines, introducing MH as a promising natural and nontoxic anticancer compound.


Subject(s)
Humans , Carcinoma, Hepatocellular/drug therapy , Honey , Liver Neoplasms/drug therapy , Doxorubicin/pharmacology , Cell Line , Apoptosis , MAP Kinase Signaling System , beta Catenin
19.
Int. j. morphol ; 38(6): 1700-1706, Dec. 2020. graf
Article in English | LILACS | ID: biblio-1134501

ABSTRACT

SUMMARY: The treatment of chronic wounds has become a public health issue in recent years mainly due to comorbidities associated with an older population and bacterial resistance. Honey has emerged as an alternative treatment for chronic wounds but lack of knowledge of its mechanism of actionin the treated tissue and low quality of evidence in clinical triads has distanced the medical community from honey as a possible treatment. One of the main processes that is altered in chronic wounds is re-epithelialization mediated by keratinocytes, where proliferation and migration processes are altered. Markers of proliferation, migration and activation of keratinocytes, such as adhesion molecules, growth factors, membrane receptors, signal translating proteins, transcription factors, microRNAs, among others are deregulated in this process. In general, honeys from different floral origins have a positive effect on markers of proliferation and migration in keratinocytes. In conclusion there are still few studies that focus on the molecular action of honey in keratinocytes and fail to report details on the honey used not allowing to achieve the same results.


RESUMEN: El tratamiento de heridas crónicas (HC) se ha vuelto un tema de salud pública en los últimos años, principalmente debido a comorbilidades asociadas a una población de mayor edad y a la resistencia bacteriana. La miel ha surgido como un tratamiento alternativo para HC pero la falta de conocimiento de su mecanismo de acción en el tejido tratado y de la baja calidad de la evidencia en triadas clínicas, ha distanciado a la comunidad médica de la miel como posible tratamiento. Uno de los principales procesos que se ve alterado en las HC es la re-epitelización mediada por queratinocitos, donde se ven alterados los procesos de proliferación y migración. Marcadores de proliferación, migración y activación de queratinocitos, como moléculas de adhesión, factores de crecimiento, receptores de membrana, proteínas traductores de señales, factores de transcripción, microARNs, entre otras, se ven desreguladas en éste proceso. De manera general las mieles de diferentes orígenes florales tienen un efecto positivo en marcadores de proliferación y migración en queratinocitos. En conclusión aún existen pocos estudios que se enfoquen en la acción molecular de la miel en queratinocitos y los pocos que existen fallan en la entrega de información en relación a la miel utilizada que pueda hacer reproducibles los resultados.


Subject(s)
Wound Healing/physiology , Keratinocytes/physiology , Re-Epithelialization/physiology , Honey , Wound Healing/genetics , MicroRNAs/physiology , MicroRNAs/genetics , Re-Epithelialization/genetics
20.
Arq. bras. med. vet. zootec. (Online) ; 72(4): 1286-1294, July-Aug. 2020. tab, ilus
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1131465

ABSTRACT

Cicatrização de ferida é um processo dinâmico, que tem por objetivo restaurar a continuidade do tecido lesionado. No entanto, em alguns casos, é necessário favorecer condições adequadas para viabilizar o processo fisiológico. Neste estudo foram utilizados ratos Wistar, divididos aleatoriamente entre cinco grupos, com 12 animais cada, sendo eles: grupo P (Bidens pilosa L.), grupo mel, grupo Co1 (pomada comercial alopática), grupo Co2 (pomada comercial homeopática) e grupo CT (controle). As lesões foram geradas por incisão com punch de 8mm, sendo tratadas diariamente de forma tópica. Foram eutanasiados quatro animais por grupo, no terceiro, sétimo e 14º dias do experimento, e o material coletado foi armazenado em formalina 10% e encaminhado para processamento histológico. Posteriormente, realizou-se a contagem de leucócitos mononucleares, fibroblastos e neovasos e avaliou-se a arquitetura de fibras colágenas. Os resultados da contagem foram analisados pela ANOVA, seguida pelo teste de Tukey (P<0,05). O modelo experimental proposto neste estudo demonstrou que todos os tratamentos apresentaram potencial cicatrizante, com exceção do mel. A aplicação tópica do creme do extrato de Bidens pilosa L. a 10% apresentou melhor perfil anti-inflamatório; a pomada alopática apresentou boa aderência à superfície da lesão e a pomada homeopática, grande potencial angiogênico, com menor tempo de cicatrização.(AU)


Wound healing is a dynamic process that aims to restore the continuity of injured tissue. However, in some cases it is necessary to favor adequate conditions to enable the physiological process. Wistar rats were randomly divided into 5 groups with 12 animals each, namely: group P (Bidens pilosa L.), group honey, group Co1 (commercial allopathic ointment), group Co2 (commercial homeopathic ointment) and group CT (control). The lesions were generated by an 8mm punch incision and were treated topically daily. Four animals per group were euthanized on the 3rd, 7th and 14th day of the experiment and the collected material was stored in 10% formalin and sent for histological processing, after which mononuclear, fibroblasts and neovascular leukocytes were counted and collagen fiber architecture was evaluated. Counting results were analyzed by ANOVA, followed by Tukey test (p <0.05). The experimental model proposed in this study showed that all treatments had healing potential, except honey. The topical application of 10% Bidens pilosa L. extract cream showed the best anti-inflammatory profile; Allopathic ointment showed good adhesion to the surface of the lesion and homeopathic ointment showed great angiogenic potential with shorter healing time.(AU)


Subject(s)
Animals , Rats , Ointments/therapeutic use , Skin/injuries , Bidens/chemistry , Honey , Wound Healing/drug effects , Wounds and Injuries/therapy , Homeopathic Remedy , Collagen , Rats, Wistar/physiology , Phytotherapeutic Drugs , Fibroblasts
SELECTION OF CITATIONS
SEARCH DETAIL