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1.
Ann Afr Med ; 23(2): 118-124, 2024 Apr 01.
Artigo em Francês, Inglês | MEDLINE | ID: mdl-39028158

RESUMO

INTRODUCTION: For cardiac arrest victims, providing high-quality cardiopulmonary resuscitation (CPR) is a fundamental component of initial care, especially in out-of-hospital settings. We sought to assess the knowledge of nonmedically trained individuals about CPR in case of cardiac arrest in the population of Jazan, Saudi Arabia. MATERIALS AND METHODS: A cross-sectional survey containing 22 questions was administered to individuals aged ≥ 18 years who were not health-care providers. The sample comprised residents of Jazan, Saudi Arabia. The survey included knowledge about the signs of cardiac arrest, previous experiences with CPR, knowledge of basic life support (BLS), and concerns related to CPR. RESULTS: This study examined responses from 480 people to assess their knowledge of CPR. More than one-half were female, and only 33% were male. Only 36.04% reported having received CPR training. In the event of a family member's cardiac arrest, more than 90% state that they would perform CPR. If a family member suffered a sudden cardiac arrest, more than 70% would call an ambulance immediately, whereas only 48% would call an ambulance if the same thing happened to a stranger. Fear of making a mistake was the most common reason for not performing CPR (70.63%). The media was the most common source of CPR training. Women were more aware of the warning signs of sudden cardiac arrest than men. Women were also more likely than men to perform CPR or call for assistance. Furthermore, women were significantly more likely than men to discontinue CPR on a sudden cardiac arrest patient for fear of stopping a working heart or being contaminated by blood or vomit. Few respondents were willing to undergo CPR training; students, homemakers, and retired people were more willing to be trained in CPR than others. CONCLUSION: In the Saudi Arabian province of Jazan, nonmedically trained people demonstrated a low level of CPR training and knowledge. We believe that making BLS courses available to the general public will increase CPR awareness and understanding among adults and increase survival rates in cases of sudden cardiac arrest.


Résumé Introduction:Pour les victimes d'un arrêt cardiaque, la prestation d'une réanimation cardiorespiratoire (RCP) de haute qualité est un élément fondamental de lains, notamment en milieu extra-hospitalier. Nous avons cherché à évaluer les connaissances des personnes non formées médicalement sur la RCP en cas d'insuffisance cardiaque. arrestation dans la population de Jazan, Arabie Saoudite.Matériels et méthodes:Une enquête transversale contenant 22 questions a été administrée personnes âgées de ≥ 18 ans qui n'étaient pas des prestataires de soins de santé. L'échantillon comprenait des résidents de Jazan, en Arabie saoudite. L'enquête comprenait connaissance des signes d'arrêt cardiaque, expériences antérieures avec la RCR, connaissance du maintien de la vie de base (BLS) et préoccupations liées à RCR.Résultats:Cette étude a examiné les réponses de 480 personnes pour évaluer leur connaissance de la RCR. Plus de la moitié étaient des femmes, et seulement 33 % étaient des hommes. Seulement 36,04 % ont déclaré avoir reçu une formation en RCR. En cas d'arrêt cardiaque d'un membre de la famille, plus de 90 % déclarent qu'ils effectueraient la RCR. Si un membre de la famille subissait un arrêt cardiaque soudain, plus de 70 % appelleraient une ambulance immédiatement, alors que seulement 48% appelleraient une ambulance si la même chose arrivait à un étranger. La peur de faire une erreur était la raison la plus courante pour ne pas pratiquer la RCR (70,63 %). Les médias étaient la source la plus courante de formation en RCR. Les femmes étaient plus conscientes des signes avant-coureurs d'arrêt cardiaque soudain que les hommes. Les femmes étaient également plus susceptibles que les hommes d'effectuer une RCR ou d'appeler à l'aide. Par ailleurs, les femmes étaient significativement plus susceptibles que les hommes d'interrompre la RCR sur un patient en arrêt cardiaque soudain de peur d'arrêter un cœur qui fonctionnait ou d'être contaminé par du sang ou des vomissures. Peu de répondants étaient disposés à suivre une formation en RCR; les étudiants, les femmes au foyer et les retraités étaient plus disposés à suivre une formation en RCR que d'autres.Conclusion:Dans la province saoudienne de Jazan, des personnes non formées médicalement ont démontré une faible niveau de formation et de connaissances en RCR. Nous pensons que rendre les cours BLS accessibles au grand public augmentera la sensibilisation à la RCP et la compréhension chez les adultes et augmenter les taux de survie en cas d'arrêt cardiaque soudain.


Assuntos
Reanimação Cardiopulmonar , Conhecimentos, Atitudes e Prática em Saúde , Parada Cardíaca , Humanos , Arábia Saudita , Masculino , Feminino , Estudos Transversais , Adulto , Pessoa de Meia-Idade , Inquéritos e Questionários , Parada Cardíaca/terapia , Adulto Jovem , Adolescente , Parada Cardíaca Extra-Hospitalar/terapia , Idoso , Serviços Médicos de Emergência
2.
Stem Cell Res Ther ; 15(1): 212, 2024 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-39020391

RESUMO

BACKGROUND: Sciatic nerve repair becomes a focus of research in neurological aspect to restore the normal physical ability of the animal to stand and walk. Tissue engineered nerve grafts (TENGs) provide a promising alternative therapy for regeneration of large gap defects. The present study investigates the regenerative capacity of PRP, ADSCs, and PRP mixed ADSCs on a long sciatic nerve defect (40-mm) bridged by a polyglycolic polypropylene (PGA-PRL) mesh which acts as a neural scaffold. MATERIALS AND METHODS: The study was conducted on 12 adult male mongrel dogs that were randomly divided into 4 groups: Group I (scaffold group); where the sciatic defect was bridged by a (PGA-PRL) mesh only while the mesh was injected with ADSCs in Group II (ADSCs group), PRP in Group III (PRP group). Mixture of PRP and ADSCs was allocated in Group IV (PRP + ADSCs group). Monthly, all animals were monitored for improvement in their gait and a numerical lameness score was recorded for all groups. 6 months-post surgery, the structural and functional recovery of sciatic nerve was evaluated electrophysiologically, and on the level of gene expression, and both sciatic nerve and the gastrocnemius muscle were evaluated morphometrically, histopathologically. RESULTS: Numerical lameness score showed improvement in the motor activities of both Group II and Group III followed by Group IV and the scaffold group showed mild improvement even after 6 months. Histopathologically, all treated groups showed axonal sprouting and numerous regenerated fascicles with obvious angiogenesis in proximal cut, and distal portion where Group IV exhibited a significant remyelination with the MCOOL technique. The regenerative ratio of gastrocnemius muscle was 23.81%, 56.68%, 52.06% and 40.69% for Group I, II, III and IV; respectively. The expression of NGF showed significant up regulation in the proximal portion for both Group III and Group IV (P ≤ 0.0001) while Group II showed no significant difference. PDGF-A, and VEGF expressions were up-regulated in Group II, III, and IV whereas Group I showed significant down-regulation for NGF, PDGF-A, and VEGF (P ≤ 0.0001). CONCLUSION: ADSCs have a great role in restoring the damaged nerve fibers by secreting several types of growth factors like NGF that have a proliferative effect on Schwann cells and their migration. In addition, PRP therapy potentiates the effect of ADSCs by synthesis another growth factors such as PDGF-A, VEGF, NGF for better healing of large sciatic gap defects.


Assuntos
Regeneração Nervosa , Polipropilenos , Nervo Isquiático , Animais , Cães , Regeneração Nervosa/fisiologia , Nervo Isquiático/lesões , Masculino , Polipropilenos/química , Plasma Rico em Plaquetas/metabolismo , Tecido Adiposo/citologia , Ácido Poliglicólico/química , Células-Tronco/citologia , Células-Tronco/metabolismo , Modelos Animais de Doenças , Alicerces Teciduais/química , Transplante de Células-Tronco/métodos , Engenharia Tecidual/métodos
3.
West Afr J Med ; 41(4): 372-380, 2024 04 30.
Artigo em Inglês | MEDLINE | ID: mdl-39002164

RESUMO

BACKGROUND: Metabolic syndrome as defined by The National Cholesterol Education Panel-Adult Treatment Panel III (NCEPATP III), is the presence of obesity, dyslipidaemia, the elevation of arterial blood pressure, and glucose intolerance. It affects 25% to 40% of the adult population of Malaysia and is associated with other medical conditions, especially cardiovascular disease. In this systematic review, the objective is to assess the effects of Nigella Sativa on parameters that reflect metabolic syndromes, such as lipid profile, blood pressure, blood glucose, and anthropometry indices. METHODS: This systematic review was conducted by performing searches for relevant publications on two databases (PubMed and Scopus). The publication period was limited from January 2011 to December 2021. Cochrane collaboration tools were used for the risk of bias assessment of each trial. RESULT: Six out of 8 randomised controlled trials (n:776) demonstrated a significant improvement in lipid profile (p <0.05), 5 out of 7 trials (n:701) showed a significant reduction in glycaemic indices (p <0.05), 1 out of 5 trials (n:551) demonstrated significant improvements in blood pressure (p <0.05), and 2 out of 7 trials (n:705) showed a significant reduction in anthropometric measurements (p <0.05). CONCLUSION: Nigella Sativa has proved to have a significant positive effect on lipid profile and glycaemic index. The results showed in the parameters of blood pressure and anthropometric indices are less convincing, as results were inconsistent across studies. Nigella Sativa can therefore be recommended as an adjunct therapy for metabolic syndrome.


CONTEXTE: Le syndrome métabolique, tel que défini par le National Cholesterol Education Panel-Adult Treatment Panel III (NCEP-ATP III), se caractérise par la présence d'obésité, de dyslipidémie, d'hypertension artérielle et d'intolérance au glucose. Il affecte 25% à 40% de la population adulte en Malaisie et est associé à d' autres affections médicales, notamment les maladies cardiovasculaires. L'objectif de cette revue systématique est d'évaluer les effets de Nigella Sativa sur des paramètres reflétant le syndrome métabolique, tels que le profil lipidique, la pression artérielle, la glycémie et les indices anthropométriques. MÉTHODES: Cette revue systématique a été réalisée en effectuant des recherches de publications pertinentes dans deux bases de données (PubMed et Scopus). La période de publication était limitée de janvier 2011 à décembre 2021. Les outils de la collaboration Cochrane ont été utilisés pour évaluer le risque de biais de chaque essai. RÉSULTATS: Six des huit essais contrôlés randomisés (n : 776) ont montré une amélioration significative du profil lipidique (p <0,05), cinq des sept essais (n : 701) ont montré une réduction significative des indices glycémiques (p <0,05), un des cinq essais (n : 551) a démontré des améliorations significatives de la pression artérielle (p<0,05), et deux des sept essais (n : 705) ont montré une réduction significative des mesures anthropométriques (p <0,05). CONCLUSION: Nigella Sativa a prouvé avoir un effet positif significatif sur le profil lipidique et les indices glycémiques. Les résultats concernant les paramètres de la pression artérielle et des indices anthropométriques sont moins convaincants, car les résultats étaient incohérents entre les études. Nigella Sativa peut donc être recommandée comme thérapie adjuvante pour le syndrome métabolique. MOTS CLÉS: Nigella Sativa, Graines de nigelle, Essai contrôlé randomisé, Syndrome métabolique.


Assuntos
Síndrome Metabólica , Nigella sativa , Ensaios Clínicos Controlados Aleatórios como Assunto , Síndrome Metabólica/tratamento farmacológico , Humanos , Fitoterapia/métodos , Pressão Sanguínea/efeitos dos fármacos , Glicemia/efeitos dos fármacos , Sementes , Extratos Vegetais/uso terapêutico , Extratos Vegetais/farmacologia , Lipídeos/sangue
4.
Exp Cell Res ; 441(1): 114150, 2024 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-38971519

RESUMO

Despite significant advances in the treatment of colorectal cancer (CRC), identification of novel targets and treatment options are imperative for improving its prognosis and survival rates. The mitochondrial SIRT3 and SHMT2 have key roles in metabolic reprogramming and cell proliferation. This study investigated the potential use of the natural product apigenin in CRC treatment employing both in vivo and in vitro models and explored the role of SIRT3 and SHMT2 in apigenin-induced CRC apoptosis. The role of SHMT2 in CRC patients' survival was verified using TCGA database. In vivo, apigenin treatment restored the normal colon appearance. On the molecular level, apigenin augmented the immunohistochemical expression of cleaved caspase-3 and attenuated SIRT3 and SHMT2 mRNA expression CRC patients with decreased SHMT2 expression had improved overall and disease-free survival rates. In vitro, apigenin reduced the cell viability in a time-dependent manner, induced G0/G1 cell cycle arrest, and increased the apoptotic cell population compared to the untreated control. Mechanistically, apigenin treatment mitigated the expression of SHMT2, SIRT3, and its upstream long intergenic noncoding RNA LINC01234 in CRC cells. Conclusively, apigenin induces caspase-3-dependent apoptosis in CRC through modulation of SIRT3-triggered mitochondrial pathway suggesting it as a promising therapeutic agent to improve patient outcomes.

5.
Poult Sci ; 103(9): 103973, 2024 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-38972280

RESUMO

This study explored the ability of formic acid (FA) to replace antibiotics in broiler chicken diets. It examined how FA affected the chickens' growth, carcass characteristics, blood chemistry, and gut bacteria. The experiment randomly assigned 300 one-day-old (Ross 308) broiler chicks to 5 groups, each divided into 6 replicates with 10 unsexed chicks. The following were the treatments: 1st group, negative control (NC): only received a basal diet; 2nd group, positive control (PC): received a basal diet supplemented with 0.5 grams of Colistin antibiotic per kilogram of diet; 3rd, 4th, and 5th groups (FA2, FA4, and FA6) these groups received a basal diet along with formic acid added at increasing levels: 2, 4, and 6 Cm3 per kilogram of diet, respectively. Results found no significant differences in live body weight (LBW) or body weight gain (BWG) between treatment groups, except for LBW at one week and BWG at 0 to 1 and 4 to 5 wk of age. No significant variations were found in feed intake (FI) and feed conversion ratio (FCR) among the treatment groups, excluding FI and FCR at 1 to 2 wk of age. The treatments significantly impacted carcass traits, dressing percentage, breast meat, thigh meat, spleen, giblets, blood levels of urea, creatinine, total protein, globulin, and albumin, as well as the activity of enzymes alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in chicks fed different diets compared to control groups. The addition of FA to the diet significantly impacted antioxidant levels. Also, the FA2 group had the highest total bacterial count (TBC). However, the FA6 group was the opposite; it had the lowest levels of harmful bacteria, such as E. coli and Coliform. Supplementing broiler diets with formic acid improves blood parameters, antioxidant activity, and gut bacteria counts, with 4.0 cm³ formic acid/kg diet supplementation promoting optimal broiler health and product quality.

6.
ACS Omega ; 9(28): 30963-30974, 2024 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-39035889

RESUMO

Herein, we introduce an innovative nanohybrid material for advanced wastewater treatment, composed of Corchorus olitorius-derived biochar and bismuth oxychloride (Biochar/Bi12O17Cl2), demonstrated in a solar photoreactor. This work focuses on the efficient degradation of linezolid (LIN), a persistent pharmaceutical pollutant, utilizing the unique (photo)catalytic capabilities of the nanohybrid. Compared with its individual components, the biochar/Bi12O17Cl2 hybrid exhibits a remarkable degradation efficiency of 82.6% for LIN, alongside significant chemical oxygen demand (COD) and total organic carbon (TOC) mineralization rates of 81.3 and 75.8%, respectively. These results were achieved within 3 h under solar irradiation, using an optimal composite dose of 125 mg/L at pH 4.3 ± 0.45, with an initial COD and LIN concentrations of 1605 and 160.8 mg/L and TOC of 594.3 mg/L. The nanohybrid's stability across five cycles of use demonstrates its potential for repeated applications, with degradation efficiencies of 82.6 and 77.9% in the first and fifth cycles, respectively. This indicates the biochar/Bi12O17Cl2 composite's suitability as a sustainable and cost-effective solution for the remediation of heavily contaminated waters. Further, the degradation pathway proposed the degradation of all of the generated intermediates to a single-ring compound. Contributing to the development of next-generation materials for environmental remediation, this research underscores the critical role of nanotechnology in enhancing water quality and ecosystem sustainability and addressing the global imperative for clean water access and environmental preservation.

7.
Cureus ; 16(6): e62641, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-39036240

RESUMO

Rhabdomyolysis involves significant skeletal muscle injury and destruction, which can be triggered by trauma, intense physical activity, heat, prolonged immobility, certain medications, and endocrine disorders. Rhabdomyolysis in renal transplants can be more complicated, and the prognosis is not well known, especially in the context of coexisting rejection. We present a case of rifampicin-induced rhabdomyolysis with superimposed acute cellular rejection in a kidney transplant patient.

8.
Sci Rep ; 14(1): 16167, 2024 Jul 13.
Artigo em Inglês | MEDLINE | ID: mdl-39003280

RESUMO

Diabetes mellitus (DM) is a chronic metabolic disorder characterized by persistent hyperglycemia. It involves disturbances in carbohydrate, fat, and protein metabolism due to defects in insulin secretion, insulin action, or both. Novel therapeutic approaches are continuously being explored to enhance metabolic control and prevent complications associated with the disease. This study investigates the therapeutic potential of kaempherol-3-rhamnoside, a flavonoid, in managing diabetes by modulating the AMP-activated protein kinase (AMPK) pathway and improving metabolic enzyme activities in streptozotocin (STZ) -induced diabetic mice. Diabetic mice were treated with varying doses of kaempherol-3-rhamnoside and/or insulin over a 28-day period. Glycolytic and gluconeogenesis enzyme activities in the liver, fasting blood glucose levels, serum insulin levels, lipid profiles and oxidative stress markers were assessed. Treatment with kaempherol-3-rhamnoside significantly improved glycolytic enzyme activities, reduced fasting blood glucose, and enhanced insulin levels compared to diabetic controls. The compound also normalized lipid profiles and reduced oxidative stress in the liver, suggesting its potential in reversing diabetic dyslipidemia and oxidative damage. Furthermore, kaempherol-3-rhamnoside activated the AMPK pathway, indicating a mechanism through which it could exert its effects. Kaempherol-3-rhamnoside exhibits promising antidiabetic properties, potentially through AMPK pathway activation and metabolic enzyme modulation. These findings support its potential use as an adjunct therapy for diabetes management. Further clinical studies are warranted to validate these results in human subjects.


Assuntos
Proteínas Quinases Ativadas por AMP , Diabetes Mellitus Experimental , Fígado , Animais , Diabetes Mellitus Experimental/tratamento farmacológico , Diabetes Mellitus Experimental/metabolismo , Camundongos , Fígado/efeitos dos fármacos , Fígado/metabolismo , Proteínas Quinases Ativadas por AMP/metabolismo , Masculino , Glicemia/metabolismo , Glicemia/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Insulina/metabolismo , Insulina/sangue , Estreptozocina , Hipoglicemiantes/farmacologia , Hipoglicemiantes/uso terapêutico
9.
Ann Afr Med ; 23(3): 343-351, 2024 Jul 01.
Artigo em Francês, Inglês | MEDLINE | ID: mdl-39034557

RESUMO

OBJECTIVES: Artificial intelligence (AI) holds the promise to revolutionize the field of medicine and enhance the well-being of countless patients. Its capabilities span various areas, including disease prevention, accurate diagnosis, and the development of innovative treatments. Moreover, AI has the potential to streamline health-care delivery and lower expenses. The community should be aware of the potential applications of AI in health care, so that they can advocate for its development and adoption. Hence, the objective of this study is to assess the community's perspectives regarding the utilization of AI in health care. METHODS: A cross-sectional, questionnaire-based study was conducted in Saudi Arabia during the period of June to October 2023. The questionnaire was distributed to people on various social media platforms using a convenience sampling method. The collected data were analyzed using Statistical Package for the Social Sciences. RESULTS: The study included 771 individuals, with 42.5% having a positive outlook on the use of AI in health care, 31.8% having a neutral view, and 7.5% having a negative view. The only factor associated with a positive opinion was regional differences (P = 0.006). Moreover, participants who used medical apps or programs (P = 0.026), wearables (P = 0.027), felt more confident in using technology (P < 0.001), enjoyed using technology (P < 0.001), found it easier to familiarize themselves with new devices or programs (P < 0.001), and had more knowledge about AI (P < 0.001) had more positive opinions regarding the use of AI in health care. CONCLUSIONS: The study found that most Saudis, especially those who were familiar with the use of technology, support the use of AI in health care, with a positive or neutral view. Yet, targeted campaigns in certain regions are needed to educate the entire community about AI's potential benefits.


Résumé Objectifs:L'intelligence artificielle (IA) promet de révolutionner le domaine de la médecine et d'améliorer le bien-être d'innombrables patients. Ses capacités couvrent divers domaines, notamment la prévention des maladies, le diagnostic précis et le développement de traitements novateurs. En outre, l'IA a le potentiel de rationaliser la prestation de soins de santé et de réduire les dépenses. La communauté devrait être consciente des applications potentielles de l'IA dans les soins de santé, afin qu'elle puisse promouvoir son développement et son adoption. Par conséquent, l'objectif de cette étude est d'évaluer les perspectives de la communauté concernant l'utilisation de l'IA dans les soins de santé.Méthodes:Une étude transversale, fondée sur des questionnaires, a été menée en Arabie Saoudite entre juin et octobre 2023. Le questionnaire a été distribué à des personnes sur diverses plateformes de médias sociaux en utilisant une méthode d'échantillonnage de commodité. Les données recueillies ont été analysées à l'aide du package statistique pour les sciences sociales.Résultats:771 personnes ont participé à l'étude, dont 42,5 % avaient un point de vue positif sur l'utilisation de l'IA dans les soins de santé, 31,8 % étaient neutres et 7,5 % étaient négatifs. Le seul facteur associé à une opinion positive était les différences régionales ( P = 0,006). En outre, les participants qui utilisaient des applications ou des programmes médicaux ( P = 0,026), des appareils portatifs (P = 0,027), se sentaient plus confiants dans l'utilisation de la technologie ( P < 0,001), particulièrement en utilisant la technique ( P < 0,001), ont trouvé qu'il était plus facile de se familiariser avec les nouveaux dispositifs ou programmes ( P < 0,001), et avaient plus de connaissances sur l'IA ( P > 0,001).Conclusions:L'étude a révélé que la plupart des Saoudiens, en particulier ceux qui étaient familiers avec l'utilisation de la technologie, soutiennent l'emploi de l'IA dans les soins de santé, avec un point de vue positif ou neutre. Néanmoins, des campagnes ciblées dans certaines régions sont nécessaires pour éduquer l'ensemble de la communauté sur les avantages potentiels de l'IA.


Assuntos
Inteligência Artificial , Atenção à Saúde , Humanos , Arábia Saudita , Estudos Transversais , Inquéritos e Questionários , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Opinião Pública , Adulto Jovem
10.
Bioorg Chem ; 150: 107591, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38964147

RESUMO

Some heterocycles bearing a benzo[h]quinoline moiety were synthesized through treating a 3-((2-chlorobenzo[h]quinolin-3-yl)methylene)-5-(p-tolyl)furan-2(3H)-one with four nitrogen nucleophiles comprising ammonium acetate, benzylamine, dodecan-1-amine, and 1,2-diaminoethane. Also, thiation reactions of furanone and pyrrolinone derivatives were investigated. The insecticidal activity of these compounds against mosquito larvae (Culex pipiens L.) was evaluated. All tested compounds exhibited significant larvicidal activity, surpassing that of the conventional insecticide chlorpyrifos. In silico docking analysis revealed that these compounds may act as acetyl cholinesterase (AChE) inhibitors, potentially explaining their larvicidal effect. Additionally, interactions with other neuroreceptors, such as nicotinic acetylcholine receptor and sodium channel voltage-gated alpha subunit were also predicted. The results obtained from this study reflected the potential of benzo[h]quinoline derivatives as promising candidates for developing more effective and sustainable mosquito control strategies. The ADME (absorption, distribution, metabolism, and excretion) analyses displayed their desirable drug-likeness and oral bioavailability properties.


Assuntos
Culex , Inseticidas , Larva , Simulação de Acoplamento Molecular , Quinolinas , Animais , Culex/efeitos dos fármacos , Inseticidas/farmacologia , Inseticidas/química , Inseticidas/síntese química , Larva/efeitos dos fármacos , Relação Estrutura-Atividade , Quinolinas/farmacologia , Quinolinas/química , Quinolinas/síntese química , Estrutura Molecular , Inibidores da Colinesterase/farmacologia , Inibidores da Colinesterase/síntese química , Inibidores da Colinesterase/química , Relação Dose-Resposta a Droga , Acetilcolinesterase/metabolismo
11.
Ecotoxicol Environ Saf ; 282: 116726, 2024 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-39047360

RESUMO

Acid rain and invasive plants have quintessential adverse impacts on terrestrial ecosystems. As an environmentally safe method for disposal of invasive plants, we tested the effect of biochar produced from these plants in altering soil deterioration under acid rain as compared with lime. Given the impacts of the feedstock type and soil properties on the response of soil to the added biochar, we hypothesized that the microbial community and functions would respond differently to the charred invasive plants under acid rain. A pot experiment was conducted to examine the response of soil microbiomes and functions to the biochar produced from Blackjack (Biden Pilosa), Wedelia (Wedelia trilobata), and Bitter vine (Mikania micrantha Kunth), or quicklime (CaO) at a rate of 1 % (w/w) under acid rain. Like soil pH, the nutrient contents (nitrogen, phosphorus, and potassium), calcium, and cation exchange capacity (CEC) were important as dominant edaphic factors affecting soil microbial community and functionality. In this respect, lime decreased nutrients availability, driven by 11-fold, 44 %, and 2-fold increments in calcium content, pH, and C/N ratio. Meanwhile, biochar improved nutrients availability under acid rain owing to maintaining a neutral pH (∼6.5), increasing calcium (by only 2-fold), and improving CEC, water repellency, and aggregation while decreasing the C/N ratio and aluminum content. Unlike biochar, lime decreased the relative abundance of Nitrosomonadaceae (the dominant ammonia-oxidizing bacteria) while augmenting the relative abundance of some fungal pathogens such as Spizellomycetaceae and Sporormiaceae. Given the highest nitrogen and dissolved organic carbon content than other biochar types, Wedelia-biochar resulted in the greatest relative abundance of Nitrosomonadaceae; thus, the microbial carbon and nitrogen biomasses were maximized. This study outlined the responses of the soil biogeochemical properties and the related microbial community structure and functionality to the biochar produced from invasive plants under acid rain. This study suggests that biochar can replace lime to ameliorate the effects of acid rain on soil physical, chemical and biological properties.

12.
Poult Sci ; 103(9): 103981, 2024 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-38981360

RESUMO

This work was designed to assess the impact of varying zeolite concentrations in diet and litter to enhance broiler's growth performance, immunity, and litter quality. A complete random arrangement was used for distributing 525 unsexed "Cobb 500" broiler chicks into seven treatments (75 chick / treatment), each treatment divided into 3 replicates (25 chicks / replicate). The 1st group (control one) received the recommended basal diet. Zeolite has been introduced to the basal diet (ZD) of the second, third, and fourth groups at concentrations of 5, 10, and 15 g/kg, respectively. The 5th, 6th and 7th groups used zeolite mixed with litter (ZL) at 0.5, 1, and 1.5 kg/m2 of litter, respectively. Due to the obtained results, adding zeolite with levels 15 g/kg of diet and 1.5 kg/1 m2 of litter, a significant improvement occurred in live body weight (LBW), body weight gain (BWG), feed intake (FI), feed conversion ratio (FCR) and European production efficiency factor (EPEF). Also, transaminase enzymes (ALT and AST), creatinine, white blood cells (WBCs) and different Immunoglobulins were significantly increased with different zeolite levels, except urea concentrations which showed reduced due to different zeolite treatments. In addition, spleen relative weight hasn't been affected by zeolite treatments, even though thymus and bursa relative weights had been affected significantly. Moreover, the antibodies' production to Newcastle disease virus (NDV) and Avian influenza virus (AIV) had increased significantly with adding zeolite with levels 10 g/kg of diet and 1.5 kg/1m2 of litter. Litter quality traits (NH3 concentration, pH values, and Moisture content) were improved with zeolite addition. So, zeolite could be employed in both feed and litter of broilers to maximize their production, immunity and improve farm's climate.

13.
Artigo em Inglês | MEDLINE | ID: mdl-38967712

RESUMO

PURPOSE OF REVIEW: Diabetic neuropathy is a common complication of diabetes mellitus (DM) and can affect up to 50% of DM patients during their lifetime. Patients typically present with numbness, tingling, pain, and loss of sensation in the extremities. Since there is no treatment targeting the underlying mechanism of neuropathy, strategies focus on preventative care and pain management. RECENT FINDINGS: Up to 69% of patients with diabetic neuropathy receive pharmacological treatment for neuropathic pain. The United States Food and Drug Administration (FDA) confirmed four drugs for painful diabetic neuropathy (PDN): pregabalin, duloxetine, tapentadol, and the 8% capsaicin patch. Nonpharmacological treatments such as spinal cord stimulation (SCS) and transcutaneous electrical nerve stimulation (TENS) both show promise in reducing pain in DM patients. Despite the high burden associated with PDN, effective management remains challenging. This update covers the background and management of diabetic neuropathy, including its epidemiology, pathogenesis, preventative care, and current therapeutic strategies.

15.
Environ Sci Pollut Res Int ; 31(31): 44254-44271, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38943002

RESUMO

Efficient catalysts play a pivotal role in advancing eco-friendly water treatment strategies, particularly in the removal of diverse organic contaminants found in water-petroleum sources. This study addresses the multifaceted challenges posed by contaminants, encompassing a spectrum of heavy metals such as As, Cd, Cr, Mn, Mo, Ni, Pb, Sb, Se, and Zn alongside pollutants like oily water (OIW), total suspended solids (TSS), chemical oxygen demand (COD), dyes, and pharmaceuticals, posing threats to both aquatic and terrestrial ecosystems. Herein, we present the synthesis of biogenically derived Mn@NiO nanocomposite (NC) photocatalysts, a sustainable methodology employing an aqueous Rosmarinus officinalis L. extract, yielding particles with a size of 36.7 nm. The catalyst demonstrates exceptional efficacy in removing heavy metals, achieving rates exceeding 99-100% within 30 min, alongside notable removal efficiencies for OIW (98%), TSS (87%), and COD (98%). Furthermore, our photodegradation experiments showed remarkable efficiencies, with 94% degradation for Rose Bengal (RB) and 96% for methylene blue (MB) within 120 min. The degradation kinetics adhere to pseudo-first-order behavior, with rate constants of 0.0227 min-1 for RB and 0.0370 min-1 for MB. Additionally, the NC exhibits significant antibiotic degradation rates of 97% for cephalexin (CEX) and 96% for amoxicillin (AMOX). The enhanced photocatalytic performance is attributed to the synergistic interplay between the Mn and NiO nanostructures, augmenting responsiveness to sunlight while mitigating electron-hole pair recombination. Notably, the catalyst demonstrates outstanding stability and reusability across multiple cycles, maintaining its stable nanostructure without compromise.


Assuntos
Petróleo , Poluentes Químicos da Água , Poluentes Químicos da Água/química , Nanoestruturas , Metais Pesados/química , Manganês/química , Níquel/química , Nanocompostos/química , Catálise , Purificação da Água/métodos
16.
ACS Omega ; 9(21): 23001-23012, 2024 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-38826538

RESUMO

The literature does not provide any "high-performance thin-layer chromatographic (HPTLC)" techniques for the determination of a novel antidiabetic medicine, ertugliflozin (ERZ). Additionally, there are not many environmentally friendly analytical methods for ERZ measurement in the literature. A rapid, sensitive, and eco-friendly reversed-phase-HPTLC (RP-HPTLC) method was designed and validated in an attempt to analyze ERZ in marketed pharmaceutical tablets more precisely, accurately, and sustainably over the traditional normal-phase HPTLC (NP-HPTLC) method. The stationary phases used in the NP- and RP-HPTLC procedures were silica gel 60 NP-18F254S and 60 RP-18F254S plates, respectively. For NP-HPTLC, a chloroform/methanol (85:15 v/v) mobile phase was used. However, ethanol-water (80:20 v/v) was the preferred method for RP-HPTLC. Four distinct methodologies, including the National Environmental Method Index (NEMI), Analytical Eco-Scale (AES), ChlorTox, and Analytical GREEnness (AGREE) approaches, were used to evaluate the greenness of both procedures. For both approaches, ERZ detection was carried out at 199 nm. Using the NP- and RP-HPTLC techniques, the ERZ measurement was linear in the 50-600 and 25-1200 ng/band ranges. The RP-HPTLC method was found to be more robust, accurate, precise, linear, sensitive, and eco-friendly compared to the NP-HPTLC approach. The results of four greenness tools demonstrated that the RP strategy was greener than the NP strategy and all other reported HPLC techniques. The fact that both techniques can assess ERZ when its degradation products are present implies that they both have characteristics that point to stability-indicating features. 87.41 and 99.28%, respectively, were the assay results for ERZ in commercial tablets when utilizing the NP and RP procedures. Based on several validation and greenness metrics, it was determined that the RP-HPTLC approach was better than the NP-HPTLC method. As a result, it is possible to determine ERZ in pharmaceutical products using the RP-HPTLC approach.

17.
Oncol Res ; 32(6): 1037-1045, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38827324

RESUMO

Background: The dysregulation of Isocitrate dehydrogenase (IDH) and the subsequent production of 2-Hydroxyglutrate (2HG) may alter the expression of epigenetic proteins in Grade 4 astrocytoma. The interplay mechanism between IDH, O-6-methylguanine-DNA methyltransferase (MGMT)-promoter methylation, and protein methyltransferase proteins-5 (PRMT5) activity, with tumor progression has never been described. Methods: A retrospective cohort of 34 patients with G4 astrocytoma is classified into IDH-mutant and IDH-wildtype tumors. Both groups were tested for MGMT-promoter methylation and PRMT5 through methylation-specific and gene expression PCR analysis. Inter-cohort statistical significance was evaluated. Results: Both IDH-mutant WHO grade 4 astrocytomas (n = 22, 64.7%) and IDH-wildtype glioblastomas (n = 12, 35.3%) had upregulated PRMT5 gene expression except in one case. Out of the 22 IDH-mutant tumors, 10 (45.5%) tumors showed MGMT-promoter methylation and 12 (54.5%) tumors had unmethylated MGMT. All IDH-wildtype tumors had unmethylated MGMT. There was a statistically significant relationship between MGMT-promoter methylation and IDH in G4 astrocytoma (p-value = 0.006). Statistically significant differences in progression-free survival (PFS) were also observed among all G4 astrocytomas that expressed PRMT5 and received either temozolomide (TMZ) or TMZ plus other chemotherapies, regardless of their IDH or MGMT-methylation status (p-value=0.0014). Specifically, IDH-mutant tumors that had upregulated PRMT5 activity and MGMT-promoter methylation, who received only TMZ, have exhibited longer PFS. Conclusions: The relationship between PRMT5, MGMT-promoter, and IDH is not tri-directional. However, accumulation of D2-hydroxyglutarate (2-HG), which partially activates 2-OG-dependent deoxygenase, may not affect their activities. In IDH-wildtype glioblastomas, the 2HG-2OG pathway is typically inactive, leading to PRMT5 upregulation. TMZ alone, compared to TMZ-plus, can increase PFS in upregulated PRMT5 tumors. Thus, using a PRMT5 inhibitor in G4 astrocytomas may help in tumor regression.


Assuntos
Astrocitoma , Metilação de DNA , Metilases de Modificação do DNA , Enzimas Reparadoras do DNA , Progressão da Doença , Isocitrato Desidrogenase , Mutação , Regiões Promotoras Genéticas , Proteína-Arginina N-Metiltransferases , Proteínas Supressoras de Tumor , Humanos , Proteína-Arginina N-Metiltransferases/genética , Proteína-Arginina N-Metiltransferases/metabolismo , Proteínas Supressoras de Tumor/genética , Proteínas Supressoras de Tumor/metabolismo , Enzimas Reparadoras do DNA/genética , Enzimas Reparadoras do DNA/metabolismo , Metilases de Modificação do DNA/genética , Metilases de Modificação do DNA/metabolismo , Isocitrato Desidrogenase/genética , Masculino , Feminino , Astrocitoma/genética , Astrocitoma/patologia , Pessoa de Meia-Idade , Adulto , Estudos Retrospectivos , Neoplasias Encefálicas/genética , Neoplasias Encefálicas/patologia , Neoplasias Encefálicas/metabolismo , Gradação de Tumores , Idoso , Temozolomida/uso terapêutico , Temozolomida/farmacologia , Regulação Neoplásica da Expressão Gênica
18.
Neurol Res ; : 1-11, 2024 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-38855923

RESUMO

OBJECTIVES: Central nervous system tuberculosis (TB) (CNS-TB) can occur in several forms, including intracranial tuberculoma, tuberculous brain abscess, TB meningitis (TBM), and spinal TB. Early treatment can save lives and prevent severe neurological complications. This study aimed to describe the characteristics and post-treatment outcomes of patients with CNS-TB and identify factors associated with poor outcomes. To the best of our knowledge, this is the largest CNS-TB study till date published in Saudi Arabia. METHODS: This retrospective cohort study included all patients diagnosed with CNS-TB in three tertiary centers in Saudi Arabia (King Abdulaziz Medical City in Jeddah, King Abdulaziz Medical City in Riyadh, and Al-Noor Specialist Hospital in Makkah) between 2009 and 2019. Data of patients' demographics, co-morbidities, presenting symptoms, type of CNS-TB, medical and surgical treatments, and outcome after completion of treatment were obtained from medical records. Treatment outcomes were categorized using the modified Rankin Scale for neurological disability. RESULTS: A total of 140 participants were included in this study from 2009 to 2019. Good outcomes were achieved in approximately 65% of cases, whereas 35% had poor outcomes based on the modified Rankin Scale. Glasgow Coma Scale score ≤10 at presentation and TBM/tuberculoma were significantly associated with poor outcomes. Moreover, the use of corticosteroids, more than three anti-TB medications, and surgical interventions were not significantly associated with good or poor outcomes. DISCUSSION: CNS-TB is associated with a high burden of long-term neurological morbidity. Early detection and treatment are crucial to prevent serious complications and decrease morbidity and mortality.

19.
Front Chem ; 12: 1404107, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38873404

RESUMO

This study explores the innovative application of iron filings solid waste, a byproduct from mechanical workshops, as a heterogeneous catalyst in the production of biodiesel from waste cooking oil. Focusing on sustainability and waste valorization, the research presents a dual-benefit approach: addressing the environmental issue of solid waste disposal while contributing to the renewable energy sector. Particle size distribution analysis, X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray fluorescence (XRF), Thermal analysis (TG-DTA), and FTIR analysis were used to characterize the iron filings. The response surface methodology (RSM) was used to guide a series of experiments that were conducted to identify the optimum transesterification settings. Important factors that greatly affect the production of biodiesel are identified by the study, including catalyst loading, reaction time, methanol-to-oil ratio, reaction temperature, and stirring rate. The catalyst proved to be successful as evidenced by the 96.4% biodiesel conversion efficiency attained under ideal conditions. The iron filings catalyst's reusability was evaluated, demonstrating its potential for numerous applications without noticeably decreasing activity. This work offers a road towards more environmentally friendly and sustainable chemical processes in energy production by making a strong argument for using industrial solid waste as a catalyst in the biodiesel manufacturing process.

20.
Sci Rep ; 14(1): 13612, 2024 06 13.
Artigo em Inglês | MEDLINE | ID: mdl-38871929

RESUMO

One of the most prevalent disorders of the urinary system is urinary tract infection, which is mostly brought on by uropathogenic Escherichia coli (UPEC). The objective of this study was to evaluate the regenerative therapeutic and antibacterial efficacy of PRP for induced bacterial cystitis in dogs in comparison to conventional antibiotics. 25 healthy male mongrel dogs were divided into 5 groups (n = 5). Control negative group that received neither induced infection nor treatments. 20 dogs were randomized into 4 groups after two weeks of induction of UPEC cystitis into; Group 1 (control positive; G1) received weekly intravesicular instillation of sodium chloride 0.9%. Group 2 (syst/PRP; G2), treated with both systemic intramuscular antibiotic and weekly intravesicular instillation of PRP; Group 3 (PRP; G3), treated with weekly intravesicular instillation of PRP, and Group 4 (syst; G4) treated with an intramuscular systemic antibiotic. Animals were subjected to weekly clinical, ultrasonographic evaluation, urinary microbiological analysis, and redox status biomarkers estimation. Urinary matrix metalloproteinases (MMP-2, MMP-9) and urinary gene expression for platelet-derived growth factor -B (PDGF-B), nerve growth factor (NGF), and vascular endothelial growth factor (VEGF) were measured. At the end of the study, dogs were euthanized, and the bladder tissues were examined macroscopically, histologically, and immunohistochemically for NF-κB P65 and Cox-2. The PRP-treated group showed significant improvement for all the clinical, Doppler parameters, and the urinary redox status (p < 0.05). The urinary MMPs activity was significantly decreased in the PRP-treated group and the expression level of urinary NGF and VEGF were downregulated while PDGFB was significantly upregulated (p < 0.05). Meanwhile, the urinary viable cell count was significantly reduced in all treatments (P < 0.05). Gross examination of bladder tissue showed marked improvement for the PRP-treated group, expressed in the histopathological findings. Immunohistochemical analysis revealed a marked increase in Cox-2 and NF-κB P65 in the PRP-treated group (P < 0.05). autologous CaCl2-activated PRP was able to overcome the bacterial infection, generating an inflammatory environment to overcome the old one and initiate tissue healing. Hence, PRP is a promising alternative therapeutic for UPEC cystitis instead of conventional antibiotics.


Assuntos
Cistite , Metaloproteinase 2 da Matriz , Metaloproteinase 9 da Matriz , Fator de Crescimento Neural , Plasma Rico em Plaquetas , Fator A de Crescimento do Endotélio Vascular , Animais , Cães , Fator de Crescimento Neural/metabolismo , Plasma Rico em Plaquetas/metabolismo , Fator A de Crescimento do Endotélio Vascular/metabolismo , Fator A de Crescimento do Endotélio Vascular/genética , Cistite/metabolismo , Metaloproteinase 9 da Matriz/metabolismo , Metaloproteinase 9 da Matriz/genética , Masculino , Metaloproteinase 2 da Matriz/metabolismo , Metaloproteinase 2 da Matriz/genética , Modelos Animais de Doenças , Escherichia coli Uropatogênica/patogenicidade , Infecções por Escherichia coli , Regulação para Baixo , Infecções Urinárias/tratamento farmacológico
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