Magnesium Supplementation: Effect on the Expression of Inflammation Genes in Erlich's Tumor.

Magnesium supplementation may be beneficial for cancer patients due to its action as a modulator of cell proliferation and metabolism and its anti-inflammatory effect. Tumor metabolism can influence the bioavailability and absorption of nutrients, leading to an increase in the individual's nutritional needs. In this work, the effects of supplementing different dosages of magnesium chloride in mice with solid Ehrlich's tumors were investigated by analyzing their hematological, inflammatory and anthropometric biomarkers. Three dosages of magnesium chloride (MgCl2) were administered for 28 consecutive days. Animal welfare was assessed according to the criteria stipulated by the National Center for the Replacement, Refinement, and Reduction of Animals in Research (NC3Rs). The inverted grid method was used to analyze muscle strength and fatigue. Difference in expression of the Tumor Necrosis Factor (TNF-α) and the Growth Transformation Factor (TGF-ß1) genes was determined by the 2-ΔCt method. The hematological evaluation consisted of the erythrogram, white blood cell and platelet counts were used for the hematological evaluation and treatment cytotoxicity. Difference in the expression of the TNF-α and TGF-ß genes showed that the group that received a high dose of magnesium had a decrease in TNF-α and RNL, an improvement in well-being with a tendency to increase muscle strength and less tumor progression according to the days of treatment. The group that received a low dosage of magnesium had a smaller tumor volume and a more controlled tumor growth according to the days. The group that received an intermediate dosage presented cytotoxicity.

Does nebivolol have renoprotective action in patients with chronic kidney disease conditions? An integrative review.

Systemic arterial hypertension (SAH) is a chronic disease of multifactorial origin and one of the main risk factors for major adverse cardiovascular events (MACE), which are the leading causes of morbidity and mortality worldwide. The pharmacological treatment of SAH involves five main classes of drugs, and Nebivolol (NEB) is one of those drugs, belonging to the class of third generation ß1-adrenoceptors selective blockers. NEB is composed of a racemic mixture of two enantiomers: d-nebivolol, which exerts antagonist effects on ß1-adrenoceptors, and l-nebivolol, a vascular ß3 receptor agonist. There are several studies that report different actions of NEB, not only for the treatment of SAH, but also as an antioxidant agent or even as a protector of renal damage. The aim of this systematic review was to investigate the available evidence regarding the effects of NEB on kidney diseases, evaluating its possible renoprotective action.

ORAL AND ENTERAL NUTRITION THERAPY IN INFLAMMATORY BOWEL DISEASES AMONG THE PEDIATRIC POPULATION: A LITERATURE REVIEW.

OBJECTIVES: To review the literature on oral and enteral nutrition therapy and investigate the evidence of its efficacy as a treatment, as well as in preventing relapses and reducing symptoms of inflammatory bowel diseases in the pediatric population. DATA SOURCE: We performed a bibliographic search in the PubMed, Web of Science, and Latin American and Caribbean Health Sciences Literature (Literatura Latino-Americana e do Caribe em Ciências da Saúde - Lilacs) databases, using the keywords "inflammatory bowel disease," "diet," and "diet therapy" in English and Portuguese, with filters for pediatric studies published in the previous five years. DATA SUMMARY: We selected 16 articles for this study, nine on exclusive and/or partial enteral nutrition and seven on modified oral diets, such as the specific carbohydrate diet (SCD) and the Crohn's Disease exclusion diet (CDED). The studies found evaluated the anthropometric profile of patients and the inflammatory profile of diseases in children before and after the introduction of each specific nutrition therapy. All interventions presented positive changes in these parameters; however, the results were inconclusive regarding the efficacy of SCD and CDED in the treatment and prevention of relapses. CONCLUSIONS: Exclusive enteral nutrition has proven to be effective in inducing remission of Crohn's Disease, and the use of partial enteral nutrition for maintenance treatment has shown promising results. Other modified oral diets are inconclusive concerning their effectiveness, requiring further randomized controlled clinical trials.

Oral and enteral nutrition therapy in inflammatory bowel diseases among the pediatric population: a literature review / Terapia nutricional oral e enteral nas doenças inflamatórias intestinais em crianças e adolescentes: uma revisão de literatura

ABSTRACT Objectives: To review the literature on oral and enteral nutrition therapy and investigate the evidence of its efficacy as a treatment, as well as in preventing relapses and reducing symptoms of inflammatory bowel diseases in the pediatric population. Data source: We performed a bibliographic search in the PubMed, Web of Science, and Latin American and Caribbean Health Sciences Literature (Literatura Latino-Americana e do Caribe em Ciências da Saúde - Lilacs) databases, using the keywords "inflammatory bowel disease," "diet," and "diet therapy" in English and Portuguese, with filters for pediatric studies published in the previous five years. Data summary: We selected 16 articles for this study, nine on exclusive and/or partial enteral nutrition and seven on modified oral diets, such as the specific carbohydrate diet (SCD) and the Crohn's Disease exclusion diet (CDED). The studies found evaluated the anthropometric profile of patients and the inflammatory profile of diseases in children before and after the introduction of each specific nutrition therapy. All interventions presented positive changes in these parameters; however, the results were inconclusive regarding the efficacy of SCD and CDED in the treatment and prevention of relapses. Conclusions: Exclusive enteral nutrition has proven to be effective in inducing remission of Crohn's Disease, and the use of partial enteral nutrition for maintenance treatment has shown promising results. Other modified oral diets are inconclusive concerning their effectiveness, requiring further randomized controlled clinical trials.

RESUMO Objetivos: Revisar a literatura quanto à terapia nutricional oral e enteral e verificar evidências de sua eficácia tanto para tratamento quanto para prevenção de recidivas e redução de sintomas das doenças inflamatórias intestinais em pediatria. Fonte de dados: Foi realizada pesquisa bibliográfica nas bases de dados PubMed, Web of Science e Literatura Latino-Americana e do Caribe em Ciências da Saúde (Lilacs) utilizando os seguintes descritores em inglês: inflammatory bowel disease, diet e diet therapy; e os seguintes descritores em português: doenças inflamatórias intestinais e dietoterapia, com os filtros de estudo em Pediatria e no máximo cinco anos de publicação. Síntese dos dados: Foram selecionados 16 artigos para este estudo, sendo nove sobre o uso de nutrição enteral exclusiva e/ou parcial e sete sobre modificações da dieta oral, como a dieta específica de carboidratos (SCD) e a dieta de exclusão na Doença de Crohn (CDED). Os estudos encontrados avaliaram o perfil antropométrico dos pacientes e o perfil inflamatório das doenças em crianças antes e depois da introdução de cada terapia nutricional específica. Em todas as intervenções, foram observadas mudanças positivas nesses parâmetros, entretanto os resultados mostraram-se inconclusivos em relação à eficácia da SCD e da CDED no tratamento e na prevenção de recidivas. Conclusões: A nutrição enteral exclusiva mostrou-se uma terapia eficaz para a indução da remissão na Doença de Crohn, e o uso da nutrição enteral parcial para tratamento de manutenção vem exibindo resultados promissores. As demais modificações de dietas orais são inconclusivas a respeito de sua eficácia, sendo necessários mais ensaios clínicos randomizados e controlados.

Label-free potentiometric biosensor based on solid-contact for determination of total phenols in honey and propolis.

We developed a label-free potentiometric biosensor using tyrosinase extracted from Musa acuminata and immobilized by covalent bond on a surface of a solid-contact transducer. The transducer was manufactured containing two layers. The first layer contained a blend of poly(vinyl) chloride carboxylated (PVC-COOH), graphite and potassium permanganate. On this layer, we deposited a second layer containing just a mixture of poly(vinyl chloride) carboxylated and graphite. On the last layer of the transducer, we immobilized the tyrosinase enzyme by reaction with N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride. The solid-contact potentiometric biosensor presented at low detection limit of 7.3×10-7M and a linear range to catechol concentration between 9.3×10-7M and 8.3×10-2M. This biosensor was applied to determine the amount of total phenols in different samples of honey and propolis. The results agreed with the Folin-Ciocalteu method.