Effect of refining and pressing temperature on chemical attributes of canola oil produced in Chile

The consumption of vegetable oils is common in our daily diet. Rapeseed oil (canola oil) is the third most consumed edible oil in the world, followed by palm and soybean oils in terms of production. Rapeseed oil has a low proportion of saturated fatty acids, while it is rich in unsaturated fatty acids, as well as in healthy compounds such as phenols, tocopherols, phytosterols, carotenoids, and fat-soluble vitamins. However, processing technologies affect the content and functional activities of bioactive compounds in the oil. Aim: To assess any potential effect of hot or cold pressing and a refining process on the nutritional value and the profile of several bioactive compounds in canola oils produced in Chile. Methods: Canola oils were characterized regarding their fatty acid profile, phytosterol and tocopherol composition, total phenol content, and antioxidant activity, according to the mode of extraction (cold or hot pressed) and before and after bWeing subjected to a refining process. Results: Fatty acid profiles were not significantly different in any of the analyzed canola oils. Refining but not temperature extraction led to a sharp decrease of phytosterols and tocopherols. Hot pressing significantly increased the amount of total phenols (3.1 times) and the antioxidant activity measured by ORAC (3.1 times) and DPPH (8.3 times) compared to the cold extraction. However, phenolic concentration and antioxidant capacity decreased after refining. Conclusions: Refining processes should be adjusted to reduce the loss of bioactive compounds in the oil.

El consumo de aceites vegetales es habitual en nuestra dieta diaria. El aceite de colza (aceite de canola) es el tercer aceite comestible más consumido en el mundo, seguido por los aceites de palma y soja en términos de producción. El aceite de colza tiene una baja proporción de ácidos grasos saturados, mientras que es rico en ácidos grasos insaturados, así como en compuestos liposolubles saludables como fenoles, tocoferoles, fitoesteroles, carotenoides y vitaminas. Sin embargo, las tecnologías de procesamiento afectan el contenido y las actividades funcionales de los compuestos bioactivos en el aceite. Objetivo: Evaluar cualquier efecto potencial del prensado en caliente o en frío y un proceso de refinación sobre el valor nutricional y el perfil de varios compuestos bioactivos en los aceites de canola producidos en Chile. Métodos: Los aceites de canola se caracterizaron en cuanto a su perfil de ácidos grasos, composición de fitoesteroles y tocoferoles, contenido de fenoles totales y actividad antioxidante, según el modo de extracción (prensado en frío o en caliente) y antes y después de ser sometidos a un proceso de refinación. Resultados: Los perfiles de ácidos grasos no fueron significativamente diferentes en ninguno de los aceites de canola analizados. La refinación, pero no la extracción en caliente, condujo a una fuerte disminución de los fitoesteroles y tocoferoles. El prensado en caliente aumentó significativamente la cantidad de fenoles totales (3,1 veces) y la actividad antioxidante medida por ORAC (3,1 veces) y DPPH (8,3 veces) en comparación con la extracción en frío. Sin embargo, la concentración de fenoles y la capacidad antioxidante disminuyeron después del refinado. Conclusión: Los procesos de refinación deben ajustarse para reducir la pérdida de compuestos bioactivos en el aceite.

Performance evaluation of the commercial aquafeeds available in the market of Pakistan on Channa marulius (Sole)

Abstract The present study aimed to determine the effect of different levels of protein on the growth, body composition, amino acid profile and serology of Channa marulius fingerlings. The experiment was conducted in ten happas installed in earthen ponds, each stocked with 10 fishes for 90 days. Four commercial fish feeds having 25%, 30%, 32% and 40% crude protein (CP) levels were fed to fish at 3% of their wet body weight three times a day. The results of the study revealed that highest weight gain, feed conversion ratio and survival rate were observed in 30% protein feed. Meanwhile, moisture content was higher in fish fed with 30% CP feed while highest crude protein was recorded in 40% CP fed fish. Lowest fat content was observed in 32% CP feed. Amino acid profile of fish revealed better results in 30% CP feed. Total protein, glucose and globulin were also highest in fish feeding 30% CP feed, while albumin was highest in 40% CP feed. It is concluded that 30% CP feed showed better results in terms of growth, amino acid profile and serological parameters without effecting fish body composition.

Resumo O presente estudo teve como objetivo determinar o efeito de diferentes níveis de proteína sobre o crescimento, composição corporal, perfil de aminoácidos e sorologia de alevinos de Channa marulius. O experimento foi conduzido em dez happas instalados em tanques de terra, cada um abastecido com 10 peixes, por 90 dias. Quatro alimentos para peixes comerciais com níveis de 25%, 30%, 32% e 40% de proteína bruta (PB) foram dados aos peixes com 3% de seu peso corporal úmido três vezes ao dia. Os resultados do estudo revelaram que maior ganho de peso, taxa de conversão alimentar e taxa de sobrevivência foram observados em 30% de proteína alimentar. Enquanto isso, o conteúdo de umidade foi maior em peixes alimentados com 30% de PB, enquanto a proteína bruta mais alta foi registrada em peixes alimentados com 40% de PB. O menor conteúdo de gordura foi observado em rações com 32% de PB. O perfil de aminoácidos dos peixes revelou melhores resultados na ração com 30% de PB. Proteína total, glicose e globulina também foram maiores em peixes alimentados com ração com 30% de PB, enquanto a albumina foi mais alta com 40% de PB. Conclui-se que a ração com 30% de PB apresentou melhores resultados em termos de crescimento, perfil de aminoácidos e parâmetros sorológicos sem afetar a composição corporal dos peixes.

Performance evaluation of the commercial aquafeeds available in the market of Pakistan on Channa marulius (Sole) / Avaliação de desempenho dos alimentos aquáticos comerciais disponíveis no mercado do Paquistão em Channa marulius (Sole)

Abstract The present study aimed to determine the effect of different levels of protein on the growth, body composition, amino acid profile and serology of Channa marulius fingerlings. The experiment was conducted in ten happas installed in earthen ponds, each stocked with 10 fishes for 90 days. Four commercial fish feeds having 25%, 30%, 32% and 40% crude protein (CP) levels were fed to fish at 3% of their wet body weight three times a day. The results of the study revealed that highest weight gain, feed conversion ratio and survival rate were observed in 30% protein feed. Meanwhile, moisture content was higher in fish fed with 30% CP feed while highest crude protein was recorded in 40% CP fed fish. Lowest fat content was observed in 32% CP feed. Amino acid profile of fish revealed better results in 30% CP feed. Total protein, glucose and globulin were also highest in fish feeding 30% CP feed, while albumin was highest in 40% CP feed. It is concluded that 30% CP feed showed better results in terms of growth, amino acid profile and serological parameters without effecting fish body composition.

Resumo O presente estudo teve como objetivo determinar o efeito de diferentes níveis de proteína sobre o crescimento, composição corporal, perfil de aminoácidos e sorologia de alevinos de Channa marulius. O experimento foi conduzido em dez happas instalados em tanques de terra, cada um abastecido com 10 peixes, por 90 dias. Quatro alimentos para peixes comerciais com níveis de 25%, 30%, 32% e 40% de proteína bruta (PB) foram dados aos peixes com 3% de seu peso corporal úmido três vezes ao dia. Os resultados do estudo revelaram que maior ganho de peso, taxa de conversão alimentar e taxa de sobrevivência foram observados em 30% de proteína alimentar. Enquanto isso, o conteúdo de umidade foi maior em peixes alimentados com 30% de PB, enquanto a proteína bruta mais alta foi registrada em peixes alimentados com 40% de PB. O menor conteúdo de gordura foi observado em rações com 32% de PB. O perfil de aminoácidos dos peixes revelou melhores resultados na ração com 30% de PB. Proteína total, glicose e globulina também foram maiores em peixes alimentados com ração com 30% de PB, enquanto a albumina foi mais alta com 40% de PB. Conclui-se que a ração com 30% de PB apresentou melhores resultados em termos de crescimento, perfil de aminoácidos e parâmetros sorológicos sem afetar a composição corporal dos peixes.

Direct spectrofluorimetric methods as alternatives to compendial ones used for the quality control of biopharmaceuticals: development, validation and application

Abstract A simple, rapid, precise, accurate and sustainable spectrofluorimetric method (SFM) was developed, validated and applied for the determination of 4-aminobenzoic acid and aromatic amino acids (phenylalanine, tryptophan and tyrosine). These compounds are used in biopharmaceutical formulations and therefore must be analyzed by quality control laboratories to meet the criteria established in pharmacopoeias. In general, potentiometric titration (PT) is described in the compendia as the official analytical technique. However, this method showed low sensitivity and selectivity, and moreover was performed with a non-aqueous solvent (acetic acid), which led to higher consumption of reagents and consequently to the formation of residues. Therefore, the SFM was developed in aqueous medium at pH 7.2 using phosphate buffer. It was successfully validated according to the ICH guidelines and showed good linearity range (r>0.999), specificity, accuracy and precision (within and between days) and robustness. The test results were compared between the SFM and PT using raw material samples, while according to the F- and t-tests at 95% confidence level, no statistical difference was found between the methods.

Excesso de peso pré-gestacional e ácidos graxos poli-insaturados no leite humano: modelo teórico de causalidade / Pre-gestational overweight and polyunsaturated fatty acids in human milk: theoretical causality model

Resumo Inúmeros estudos têm se detido na avaliação da associação entre o excesso de peso pré-gestacional e os ácidos graxos poli-insaturados no leite humano. Todavia, diante da complexidade de fatores de risco potencialmente confundidores, é recomendável a utilização de ferramentas gráficas para identificar possíveis vieses. O objetivo deste artigo é propor um modelo teórico de causalidade utilizando o gráfico acíclico direcionado entre o excesso de peso pré-gestacional e os ácidos graxos poli-insaturados no leite humano. Foi realizada ampla revisão da literatura para identificar as variáveis com relações causais com a exposição e/ou desfecho. A escolha das variáveis para ajuste seguiu o algoritmo gráfico que compreende seis critérios para a seleção de um conjunto mínimo de variáveis potencialmente confundidoras. Condições socioeconômicas, intervalo interpartal, idade materna e padrão de consumo alimentar foram as variáveis ajustadas a fim de se estimar o efeito total do excesso de peso pré-gestacional sobre o conteúdo dos ácidos graxos poli-insaturados no leite humano. O conjunto mínimo de variáveis encontrado pelo presente estudo pode ser utilizado na análise de outros estudos que avaliem essa associação.

Abstract A number of studies have focused on the evaluation of the relationship between pre-pregnancy overweight and polyunsaturated fatty acids content in human milk. However, given the complexity of potentially confounding risk factors, the use of graphical tools is recommended to identify possible biases. This article aims to propose a theoretical model of causality using the directed acyclic graph between pre-pregnancy overweight and polyunsaturated fatty acids content in human milk. Methods: An extensive literature review was performed to identify variables with causal relationships with exposure and/or outcome. The choice of variables for adjustment followed the graphic algorithm that comprises six criteria for selecting a minimum set of potentially confounding variables. Socioeconomic conditions, interpartum interval, maternal age and food consumption pattern were the variables that would have to be adjusted in order to estimate the total effect of pre-pregnancy overweight on polyunsaturated fatty acids content in human milk. The minimum set of variables found in the present study can be used in the analysis of other studies that evaluate this association.

Effects of paternal pre-conceptional n-3 polyunsaturated fatty acids on telomere length in the offspring / 公共卫生与预防医学

Objective To investigate the effects of paternal pre-conceptional n-3 polyunsaturated fatty acids (n-3 PUFAs) on telomere length (TL) in the offspring. Methods Three to four-week old male C57 BL/6J mice (Father) were randomly divided into three groups and fed either an n-3 PUFA-deficient (n-3 D) (n-6:n-3 PUFA ratio = 47.2:1) diet, a diet with normal n-3 PUFA content (n-3 N) (n-6:n-3 PUFA ratio = 4.3:1), or a diet with high n-3 PUFA content (n-3 H) (n-6:n-3 ratio = 1.5:1), for 12 weeks. Then, the offspring were generated by mating the father mice with 12-week-old virgin female C57 BL/6J mice. The TL, mRNA expression of telomere transcriptase and binding proteins, as well as DNA methylation in the TERT promoter region were determined in adult offspring mice. Results Compared to n-3 N diet, paternal feeding with n-3 D diet during preconception decreased offspring TL in the peripheral blood cells, liver, adipose tissue and brain, accompanied by upregulated hepatic mRNA expression of TIN2 in the female, and downregulated hepatic expression of TERC, and binding proteins TRF2 and POT1a in the male. Meanwhile, paternal n-3 D diet shortened testis TL in offspring instead of themselves, with altered mRNA expression of TERT and binding proteins TRF1, TRF2 and POT1a. Paternal n-3 H diet showed no differences in effects on offspring TL and expressions of TERC and binding proteins with n-3 N diet, but normalized the alterations in associated parameters resulted from paternal n-3 D diet. In addition, although paternal n-3 D or n-3 H diet did not affect testis TL in themselves compared to n-3 N diet, fathers fed n-3 H diet had longer testis TL and higher expression of TRF1, TRF2, POT1a and RAP1 than those fed n-3 D diet. Finally, the DNA methylation fraction in the TERT promoter in offspring testes and male offspring liver was no difference between paternal n-3 D and n-3 N diet groups. CpG sites with altered methylation were less (1 site) between paternal n-3 H and n-3 N diet groups than those (5 sites) between paternal n-3 H and n-3 D diet groups in male offspring liver and testes. Conclusion Maintaining paternal optimal n-3 PUFA status in pre-conception increases offspring TL, probably mediated by inheritance from increased TL in father and regulation on expressions of telomere transcriptase and binding proteins in the offspring, which may be helpful for promoting offspring development and disease prevention in adulthood.

Analysis of 111 cases of aristolochic acids nephropathy / 药学实践杂志

Objective To analyze the clinical characteristics and regularity of aristolochic acid nephropathy (AAN) induced by drugs containing aristolochic acid. Methods The clinical data of 111 patients with AAN induced by aristolochic acid were reviewed. The clinical features, medication and treatment of AAN were analyzed. Results Among 111 patients, there were more females than males (2.58∶1), 101 cases (90.99%) were over 50 years old； the mean age was (63.70±11.67) years old;the average duration of medication was (8.08±6.94) years. The drugs involved were Guanxinsuhe pill and Longdanxiegan pill in 106 cases (95.50%). Serum creatinine increased in 108 cases, urea nitrogen increased in 106 cases and hemoglobin decreased in 103 cases, most of which were hypogravity urine, mild to moderate proteinuria and occult blood. Ultrasonic examination revealed that the kidneys were damaged to varying degrees. Pathological biopsy of kidney showed renal tubular damage. Most patients had an insidious onset and varying degrees of progression, which were not proportional to the age and the duration of taking the medicine. In clinical, the renal function was progressively damaged, most of which were irreversible and with a poor prognosis. Conclusion Patients with renal impairment differed greatly individually, and the renal damage was not paralleled with the medication duration and dose of drugs containing aristolochic acid.AAN progressed rapidly, and the disease still progressed even after stopping taking drugs containing aristolochic acid. Strengthening pharmacovigilance, implementing early diagnosis and effective intervention could help to reduce the occurrence of AAN and attenuate its development.

Analysis on Quality of Sojae Semen Praeparatum Based on Traditional Quality Evaluation / 中国实验方剂学杂志

ObjectiveBased on the quality evaluation experience of "it is better to have a fragrant and strong aroma" summarized by materia medica of past dynasties， the chemical components of Sojae Semen Nigrum（SSN） and Sojae Semen Praeparatum（SSP） were systematically compared and analyzed， and the main fermentation products in different fermentation time were quantitatively analyzed， so as to clarify the transformation law of internal components in the processing process and provide scientific basis for the modern quality control of SSP. MethodUltra performance liquid chromatography-quadrupole tandem time-of-flight mass spectrometry（UPLC-Q-TOF-MS） was used for the structural identification of the chemical constituents of SSN and SSP， and with the aid of Progenesis QI v2.3 software， the negative ion mode was employed for principal component analysis（PCA） pattern recognition， and the data were analyzed with the aid of orthogonal partial least squares-discriminant analysis（OPLS-DA） for two-dimensional data to obtain S-plot， and components with |P|>0.1 were selected as the differential constituents. The contents of isoflavonoids in SSP during fermentation was determined by UPLC， and the samples were taken every 8 h in the pre-fermentation period and every 2 d in the post-fermentation period， and the dynamic changes of isoflavonoid contents in different fermentation stages were analyzed. The contents of amino acids and nucleosides in SSP and SSN from different fermentation stages were quantitatively analyzed by phenyl isothiocyanate（PITC） pre-column derivatization and high performance liquid chromatography（HPLC） gradient elution， and the contribution of flavor substances to the "delicious" taste of SSP was discussed by taste intensity value（TAV）. ResultA total of 19 kinds of differential components were screened out， mainly soybean saponins and isoflavones， and their contents decreased significantly or even disappeared after fermentation. In the pre-fermentation process of SSP， glycoside bond hydrolysis mainly occurred， and isoflavone glycosides in SSN were degraded and converted into the corresponding aglycones， the content of flavor substances such as amino acids increased gradually. In the post-fermentation process， protein degradation mainly occurred， after 8 d of post-fermentation， the content of isoflavones was basically stable， while the total content of amino acids increased by 8-40 times on average. Different amino acids form the special flavor of SSP， such as the TAV of glutamate is always ahead of other flavor substances， and sweet substances such as alanine and valine have made relatively great contributions to SSP. ConclusionBased on the law of constituent transformation， combined with the traditional evaluation index of "fragrant and strong"， it is difficult to control the fermentation degree of SSP by the existing standards in the 2020 edition of Chinese Pharmacopoeia. It is suggested that description of the characteristics of SSP be refined and changed to "fragrant， delicious and slightly sweet"， and at the same time， the post-fermentation index compounds such as glutamic acid， alanine and valine should be added as the quality control indicators of SSP， so as to standardize the production process and improve the quality of SSP.

Correlación entre la adicción a la comida y niveles del ácido araquidónico en adultos con obesidad tras intervenciones nutricionales

Introducción: Los endocannabinoides son una diana en el tratamiento de la obesidad y se producen a partir de ácidos grasos esenciales, los derivados del ácido linoleico actúan como agonistas de los receptores cannabinoides tipo 1 (CB1), asimismo, los derivados del ácido linolénico ejercen efectos de antagonistas de dichos receptores, por lo cual se plantea que modificar el consumo dietario de los ácidos grasos omega 3 y 6 podría modular la activación del sistema endocannabinoide, lo que podría ser favorable para personas con adicción a la comida, considerando cómo este sistema promueve la actividad de las vías dopaminérgicas que se alteran en la adicción a sustancias psicoactivas. Objetivo: Analizar la correlación entre el puntaje de adicción a la comida por la escala mYFAS 2.0 y los niveles plasmáticos de ácido araquidónico en adultos con obesidad tras modular la ingesta de alimentos fuente de ácidos grasos esenciales. Metodología: Se desarrolló un estudio piloto con diseño de ensayo clínico cruzado en dos tiempos, en donde los participantes recibieron los tratamientos estándar y experimental, en estos se brindaron planes siguiendo recomendaciones para el manejo nutricional de la obesidad, adicionalmente, el tratamiento experimental contó con pautas para disminuir el consumo del Omega 6 y aumentar el consumo de Omega 3 para obtener una relación menor a 5:1 entre estos ácidos grasos. Resultados: Se observó una disminución significativa en el puntaje de adicción a la comida y los niveles plasmáticos de ácido araquidónico en los participantes tras recibir el tratamiento experimental, presentando una correlación directamente proporcional entre estas, por otro lado, el tratamiento estándar estuvo asociado a una correlación inversamente proporcional entre estos. Conclusiones: El descenso en las concentraciones plasmáticas del ácido araquidónico fue asociado a un menor puntaje en la escala mYFAS 2.0 de adicción a la comida en los participantes de este estudio tras su exposición al tratamiento experimental.

Introduction: Endocannabinoids are a target in obesity treatment and they are produced from the essential fatty acids, the metabolites of linoleic acid act as agonists of the cannabinoid receptors type 1 (CB1), likewise, the metabolites of the linolenic acid act as inverse agonists of such receptors, hence, it is proposed that modifying the dietary intake of the essential fatty acids (Omega 6 and 3) may modulate the activation of the endocannabinoid system, this could be favorable for people with food addiction, considering how this system promotes the activity of the dopaminergic pathways that are altered in the psychoactive substances addiction. Objective: To analyze the correlation between the food addiction score and plasmatic levels of arachidonic acid in adults with obesity following a modulation of the dietary intake of essential fatty acids n-6 and n-3 food sources. Methods: A pilot study was carried out with a two-period crossover clinical trial design, in which the participants received standard and experimental treatments, in these programs, plans were provided following guidelines for the nutritional management of obesity, in addition, the experimental treatment included recommendations to reduce the intake of linoleic acid and to increase the intake of linolenic acid to obtain a ratio lower to 5:1 between these fatty acids. Results: A significant decrease in the food addiction score and plasmatic levels of arachidonic acid was observed in the participants exposed to the experimental treatment, showing a directly proportional correlation, moreover, the standard treatment was associated to inverse correlations between these variables. Conclusion: The decrease in plasmatic arachidonic acid levels was associated with lower scores on the mYFAS 2.0 of food addiction in the participants of this study following their exposure to the experimental treatment.

A conexão entre ácidos biliares e diabetes mellitus tipo 2 - Uma revisão / The connection between bile acids and type 2 diabetes mellitus - a review

ABSTRACT Background: Bile acids (BAs) are steroid molecules synthesized exclusively in the liver, being end products of cholesterol catabolism. BAs are known to be involved in several metabolic alterations, including metabolic syndrome and type 2 diabetes mellitus (DM2). DM2 is a chronic degenerative disease characterized by insulin resistance, insulin deficiency due to insufficient production of pancreatic ß-cells, and elevated serum glucose levels leading to multiple complications. Objective: The objective of this study is to investigate the role of BAs in the pathophysiology of DM2, highlighting the possibilities in the development of therapeutic procedures targeting BAs as an optional pathway in the treatment of DM2. Methods: The research was carried out through narrative review and publications on the relationship between BAs and DM2. The databases used for the search include PubMed, Scopus, and Web of Science. The keywords used for the search include bile acids, type 2 diabetes mellitus, metabolic syndrome, and metabolic disorders. Results: The studies have reported the involvement of BAs in the pathophysiology of DM2. BAs act as a ligand for the nuclear farnesoid X receptor, regulating glucose metabolism, lipid metabolism, and cellular energy production. Additionally, BAs modulate the production, elimination, and mobilization of BAs through the farnesoid X receptor. BAs also act as a signaling pathway through Takeda G protein-coupled receptor 5, further contributing to metabolic regulation. These findings suggest that targeting BAs may offer a novel therapeutic approach in the treatment of DM2. Conclusion: This study highlights the important role of BAs in DM2, specifically through their interactions with key metabolic pathways. Targeting BAs may represent an innovative and effective approach to the treatment of DM2.

RESUMO Contexto: Os ácidos biliares (ABs) são moléculas esteróides sintetizadas exclusivamente no fígado, sendo produtos finais do catabolismo do colesterol. Os ABs são conhecidos por estarem envolvidos em várias alterações metabólicas, incluindo a síndrome metabólica e o diabetes mellitus tipo 2 (DM2). A DM2 é uma doença crônica degenerativa caracterizada pela resistência insulínica, deficiência de insulina devido à produção insuficiente de células ß pancreáticas e hiperglicemia levando a múltiplas complicações. Objetivo: O objetivo deste estudo é investigar o papel dos ABs na fisiopatologia da DM2, destacando as possibilidades no desenvolvimento de procedimentos terapêuticos visando os ABs como uma via opcional no tratamento da DM2. Métodos: A pesquisa foi realizada por meio de revisão narrativa e publicações sobre a relação entre ABs e DM2. As bases de dados usadas para a pesquisa incluem PubMed, Scopus e Web of Science. As palavras-chave usadas para a pesquisa incluíram: ácidos biliares, diabetes mellitus tipo 2, síndrome metabólica e distúrbios metabólicos. Resultados: Os estudos relataram o envolvimento dos ABs na fisiopatologia da DM2. Os ABs atuam como ligantes para o receptor nuclear farnesoide X, regulando o metabolismo da glicose, metabolismo lipídico e produção de energia celular. Além disso, os ABs regulam a produção, eliminação e mobilização de ABs através do receptor farnesoide X. Os ABs também atuam como uma via de sinalização através do receptor acoplado à proteína G Takeda 5, contribuindo ainda mais para a regulação metabólica. Esses achados sugerem que o ABs pode oferecer uma nova abordagem terapêutica no tratamento da DM2. Conclusão: Este estudo destaca o papel importante do ABs na DM2, especificamente por meio de suas interações com vias metabólicas-chave. O redirecionamento ao ABs pode representar uma abordagem inovadora e eficaz para o tratamento da DM2.

Mejoramiento de un método no comercial para la extracción de ADN de moscas de interés médico-legal

La obtención de ADN de moscas de interés médico-legal es de relevancia para una variedad de aplicaciones. Aunque existen métodos de extracción comerciales de ADN, su uso rutinario es limitado, en algunos escenarios. En este contexto, el uso de métodos no comerciales constituye una alternativa; sin embargo, su optimización es clave para mejorar el flujo de trabajo y los resultados. Este trabajo evaluó el impacto de variaciones a un método de precipitación salina sobre la concentración y la pureza del ADN recuperado. No se encontraron diferencias significativas en la concentración de ADN extraído entre los diferentes tiempos de incubación, probados durante la fase de extracción, mientras que el incremento en el volumen de etanol absoluto, en la fase de precipitación de ADN, mejoró significativamente la concentración de ADN obtenido. Las modificaciones propuestas reducen el tiempo de ejecución y la concentración de ADN obtenido comparado con el protocolo original.

Obtaining DNA from flies of medico-legal interest is relevant for a variety of applications. Although commercial extraction methods offer optimal DNA, their routine use is limited in some settings. In this context, the use of non-commercial methods constitutes an alternative in laboratories with limited resources however, its optimization is key to improving the workflow and the results. This work evaluated the impact of variations to a saline precipitation method on the concentration and purity of the recovered DNA. No significant differences were found in the concentration of extracted DNA between the different incubation times tested during the extraction phase. In contrast, the increased volume of absolute ethanol in the DNA precipitation phase significantly improved the concentration of DNA obtained. The proposed modifications reduce the runtime and DNA concentration obtained compared with the original protocol.

Omega-3 fatty acids supplements for dry eye - Are they effective or ineffective?

Purpose: To evaluate effectiveness of omega?3 fatty acid supplements in relieving dry eye symptoms and signs in symptomatic visual display terminal users (VDT). Methods: A randomized controlled study was done; eyes of 470 VDT users were randomized to receive four capsules twice daily for 6 months (O3FAgroup), each containing 180 mg of eicosapentaenoic acid and 120 mg docosahexaenoic acid. The O3FA group was compared with another group (n = 480) who received four capsules of a placebo (olive oil) twice daily. Patients were evaluated at baseline, 1, 3, and 6 months, respectively. The primary outcome was improvement in omega?3 index (a measure of EPA and DHA ratio in RBC membrane). Secondary outcomes were improvement dry eye symptoms, Nelson grade on conjunctival impression cytology, Schirmer test values, tear film breakup time (TBUT), and tear film osmolarity. Means of groups (pre?treatment, 1, 3, and 6?months) were compared with repeated measure analysis of variance. Results: At baseline, 81% patients had low omega?3 index. In the O3FA group, a significant increase in omega?3 index, improvement in symptoms, reduction in tear film osmolarity, and increase in Schirmer, TBUT, and goblet cell density was observed. These changes were not significant in the placebo group. Improvement in test parameters was significantly (P < 0.001) better in patients with low omega3 index (<4%) subgroup. Conclusion: Dietary omega?3 fatty acids are effective for dry eye in VDT users; omega?3 index appears to be the predictor to identify potential dry eye patients who are likely to benefit from oral omega?3 dietary intervention

Allosteric modulation on specific gene mutated Vitamin D receptor by essential PUFAs and its distinct molecular effects on type 2 diabetes mellitus

A serious health threat affecting the T2DM group is evident more cases T2DM are diagnosed. In this research, we choose to research into all of this possible mechanism of 3T3-L1 Cell lines and Molecular Docking studies Schrodinger software identified Vitamin D, Omega-3, and 6 PUFAs (EPA DHA & AA) Compounds of hydrophilic and hydrophobic pocket throughout molecular modeling besides T2DM. A group of three analog VDRs is being developed for discovery treatment with T2DM. Its use as it was agreed to run a molecular cell culture and docking study. Recognize the binding method involving the compound in T2DM through ADME prediction. The molecular dynamics simulation was enhanced by confirmation of the strength of the possible composite binding. Based on the computational results, the Omega-3 and 6 PUFAs compound encourages energy interaction. The composite contains an in vitro anti-diabetic activity; the compounds have clearly shown that they are active on T2DM. Our studies provide vital information on the findings of the bimolecular T2DM inhibitors.

Chemical and sensory assessment of extra virgin olive oil blends with omega-3 polyunsaturated fatty acids from plant origin

Extra virgin olive oil (EVOO) is known for its health benefits, although it provides a minimum amount of n-3 polyunsaturated fatty acids (n-3 PUFA), which play an important role in the human organism. In this study, EVOO was blended with vegetable oils which are rich sources of n-3 PUFA alpha-linolenic acid (ALA) and/or stearidonic acid (SDA) (chia, walnut, linseed and viper's bugloss seed oils). Fatty acid profiles, induction time, and organoleptic characteristics of the resulting blends were assessed. The n-3 PUFA enrichment in the blends was proportional to the degree of blending. Sensory analysis carried out by a trained panel showed that it is possible to enrich EVOO with up to 20% chia, linseed and viper's bugloss seed oil without altering the original organoleptic characteristics of EVOO. However, the induction time of the blends was significantly reduced compared with EVOO even after adding n-3 PUFA in small proportions, meaning that shelf-life time of these blends is much lower than that of EVOO, which should be considered when preparing these products for commercial purposes.

El aceite de oliva extra virgen (AOEV) es ampliamente conocido por sus beneficios para la salud, aunque apenas aporta ácidos grasos poliinsaturados n-3 (AGPI n-3), los cuales juegan un papel importante en el organismo humano. En este estudio se elaboraron mezclas de AOEV con aceites vegetales ricos en ácido alfa-linolénico (ALA) y/o estearidónico (SDA) (chia, nuez, linaza y viborera). Se evaluaron los perfiles de ácidos grasos, tiempos de inducción y características organolépticas de las mezclas resultantes. El enriquecimiento en AGPI n-3 fue proporcional al grado de mezcla. El análisis sensorial llevado a cabo por un panel entrenado mostró que es posible enriquecer AOEV con hasta un 20% de aceite de chia, linaza o viborera sin alterar las características organolépticas originales del AOEV. Sin embargo, los tiempos de inducción de las mezclas fueron significativamente menores que el del AOEV, incluso tras añadir AGPI n-3 en pequeñas proporciones, lo que significa que el tiempo de vida media de las mezclas es mucho menor que el del AOEV. Este hecho debería tenerse en cuenta al preparar las mezclas con propósitos comerciales.

Maternal Blood Fatty Acid Levels in Fetal Growth Restriction / Níveis sanguíneos maternos de ácidos graxos na restrição do crescimento fetal

Abstract Objective: To assess the maternal blood levels of fatty acids (FAs) in pregnancies with fetal growth restriction (FGR). Methods: This prospective cross-sectional study included pregnant women with gestational age between 26 and 37 + 6 weeks with FGR and appropriate for gestational age (AGA) fetuses. The levels of saturated, trans, monounsaturated, and polyunsaturated FAs were measured using centrifugation and liquid chromatography. The Student's t-test, Mann-Whitney test, and general linear model, with gestational age and maternal weight as covariants, were used to compare FA levels and the FGR and AGA groups. The Chi-square was used to evaluate the association between groups and studied variables. Results: Maternal blood sample was collected from 64 pregnant women, being 24 FGR and 40 AGA. A weak positive correlation was found between the palmitoleic acid level and maternal weight (r = 0.285, p = 0.036). A weak negative correlation was found between the gamma-linoleic acid level and gestational age (r = −0.277, p = 0.026). The median of the elaidic acid level (2.3 vs. 4.7ng/ml, p = 0.045) and gamma-linoleic acid (6.3 vs. 6.6ng/ml, p = 0.024) was significantly lower in the FGR than the AGA group. The palmitoleic acid level was significantly higher in the FGR than AGA group (50.5 vs. 47.6ng/ml, p = 0.033). Conclusion: Pregnant women with FGR had lower elaidic acid and gamma-linoleic acid levels and higher palmitoleic acid levels than AGA fetuses.

Resumo Objetivo: Avaliar os níveis sanguíneos maternos de ácidos graxos (AGs) em gestações com restrição de crescimento fetal (RCF). Métodos: Este estudo prospectivo transversal incluiu gestantes com idade gestacional entre 26 e 37 semanas e 6 dias com RCF e fetos adequados para a idade gestacional (AIG). Os níveis de ácidos graxos saturados, trans, monoinsaturados e poliinsaturados foram medidos usando centrifugação e cromatografia líquida. O teste t-Student, o teste de Mann-Whitney e o modelo linear geral, com idade gestacional e peso materno como covariantes, foram utilizados para comparar os níveis de AGs e os grupos RCF e AIG. O teste Qui-quadrado foi utilizado para avaliar a associação entre os grupos e as variáveis estudadas. Resultados: Amostra de sangue materno foi coletada de 64 gestantes, sendo 24 RCF e 40 AIG. Uma correlação positiva fraca foi encontrada entre o nível de ácido palmitoleico e o peso materno (r = 0,285, p = 0,036). Uma correlação negativa fraca foi encontrada entre o nível de ácido gama-linoleico ea idade gestacional (r = −0,277, p = 0,026). A mediana do nível de ácido elaídico (2,3 vs. 4,7 ng/ml, p = 0,045) e ácido gama-linoleico (6,3 vs. 6,6 ng/ml, p = 0,024) foram significativamente menores no grupo RCF do que no grupo AIG. O nível de ácido palmitoleico foi significativamente maior no grupo RCF do que no grupo AIG (50,5 vs. 47,6 ng/ml, p = 0,033). Conclusão: Gestantes com RCF apresentaram níveis mais baixos de ácido elaídico e ácido gama-linoleico e níveis mais elevados de ácido palmitoleico do que os fetos AIG.

Cytotoxic and microbial studies of mixed metal complexes

Breast cancer and its treatment have become a prominent and challenging problem today. The increasing multidrug resistance to microbial pathogens is the root cause of breast cancer. Women suffering from cancer showed high levels of E. coli and S. aureus. In the last few decades, there has been a considerable need in the medical field for the discovery of new compounds endowed with antimicrobial activity, despite the fact that several antibiotics and chemotherapy drugs are currently accessible. Substantial research was conducted, particularly on transition complexes as metal-based drugs in pharmacological applications to provide therapeutic options. The synthesis, characterization, antibacterial activity, and cytotoxic activity of copper complexes with specific ligands of amino acids such as tyrosine and arginine are discussed in this work.

The Efficacy and Safety of a Combination of Amino Acids, Vitamins and Probiotics in PROM and PPROM

The prevalence and severity of prelabor rupture of the membranes (PROM)/preterm PROM (PPROM) are a worldwide public health concern. PROM is the result of a cascade of events involving matrix metalloproteinase (MMP)-9, tissue inhibitor of metalloproteinases 1 (TIMP1), cytokines and proapoptotic genes, which is initiated by several factors such as infection, genotoxic agents or some unknown etiology. In PROM, there is an increased expression and activation of MMP-2, MMP-3 and MMP-9 and a reduction of TIMP1. p53 and tumor necrosis factor (TNF)-? mediate the major apoptotic pathway of PROM. p53 can transactivate some MMP genes, resulting in the overexpression of MMPs. This leads to apoptosis. MMP-2 and MMP-9 degrades type-IV collagen, which is the major structural component of chorioamnion. Understanding the fundamental pathology at the molecular level, it appears necessary to adjust the biologically protective mechanism to prevent spontaneous preterm labor. Our findings show that the novel combination of arginine, ascorbic acid, folic acid, glutamine, glutathione, thiamine, lactic acid bacillus spores, vitamin E acetate and pyridoxine is safe and effectively prevents PROM and PPROM (97% patients) and prolongs pregnancy term.

Safety and Efficacy of a Combination of Amino Acids in Insufficient Lactating Mothers

Milk production of the mammary gland is mainly determined by the milk synthesis and proliferation abilities of mammary epithelial cells (MECs). The availability of amino acids is critical for the production of milk. Amino acids enhance milk protein synthesis and mammary gland development through the mechanistic target of rapamycin (mTOR) pathway. Taurine enhances lactation by increasing prolactin secretion. Vitamins such as Thiamine and Pyridoxine are essential for maintaining and growing maternal and child health. However, there is a paucity of data regarding the safety and efficacy of amino acids and vitamins combination in lactating mothers with insufficient lactation. Hence, a prospective study was conducted to assess the safety and efficacy of a novel amino acids and vitamins combination. The results showed that with the intervention of this combination, 62% of participants showed onset of lactation within 45 minutes to 2 hours. The study suggests clinicians should consider this novel combination to improve lactation in insufficient lactating mothers

Blind docking of 4-Amino-7-Chloroquinoline analogs as potential dengue virus protease inhibitor using CB Dock a web server-Supplemenntary data

Currently, there is no approved drug to combat dengue. Various quinoline derivatives are known for potential antimalarial, antiviral activities, etc. In the present work docking between 4-Amino-7-Chloroquinoline analogs was performed with dengue virus NS2B/NS3 protease using CB dock, a web server. Lys74, Ile165, Val147, Asn152, Asn167, Trp83 and Leu149 amino acid residues were found to be in contact with designed 4-Amino-7-Chloroquinoline analogs. Different modes of binding like hydrogen bonding, hydrophobic interactions, etc with designed compounds improve potential anti-dengue characteristics in silico. ADME results are in acceptable range.

Blind docking of 4-Amino-7-Chloroquinoline analogs as potential dengue virus protease inhibitor using CB Dock a web server

Currently, there is no approved drug to combat dengue. Various quinoline derivatives are known for potential antimalarial, antiviral activities, etc. In the present work docking between 4-Amino-7-Chloroquinoline analogs was performed with dengue virus NS2B/NS3 protease using CB dock, a web server. Lys74, Ile165, Val147, Asn152, Asn167, Trp83 and Leu149 amino acid residues were found to be in contact with designed 4-Amino-7-Chloroquinoline analogs. Different modes of binding like hydrogen bonding, hydrophobic interactions, etc with designed compounds improve potential anti-dengue characteristics in silico. ADME results are in acceptable range.