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Воздействие витамина D на герпесвирусные инфекции.

Помимо своей классической роли в регулировании метаболизма кальция и фосфата, витамин D также оказывает значительное влияние на модуляцию иммунитета. Витамин D регулирует иммунную реакцию, переходя от воспламенительного состояния к более толерогенному one путем увеличения выброса антивоспалительных цитокинов при одновременном ослаблении регулирования проинфламаторных цитокинов. Таким образом, низкий уровень витамина D связан с повышенным риском возникновения аутоиммунных заболеваний, таких, как множественный склероз и тип 1 диабет. Кроме того, этот прохормон также способствует высвобождению хо

Proceedings of the 3rd IPLeiria's International Health Congress : Leiria, Portugal. 6-7 May 2016.

S1 Health literacy and health education in adolescence Catarina Cardoso Tomás S2 The effect of a walking program on the quality of life and well-being of people with schizophrenia Emanuel Oliveira, D. Sousa, M. Uba-Chupel, G. Furtado, C. Rocha, A. Teixeira, P. Ferreira S3 Diagnosis and innovative treatments - the way to a better medical practice Celeste Alves S4 Simulation-based learning and how it is a high contribution Stefan Gisin S5 Formative research about acceptability, utilization and promotion of a home fortification programme with micronutrient powders (MNP) in the Autonomous Region o

The epigenetic potential of vitamin K2 in brain health.

Vitamin K2 refers to a subfamily of vitamin K isoforms known as Menaquinones and, therefore, indicated as MK-n, the "n" indicating the number of isoprene units present in the side chain. Like the other members of the Vitamin K family, K2 is an enzymatic cofactor for the γ-glutamyl carboxylase (GGCX). This enzyme's substrates, which carboxylate glutamic acid residues, are known as Vitamin K-dependent proteins (VKDPs). Besides being involved in bone homeostasis, vitamin K exerts its primary function in the coagulation process. More recently, a function of Vitamin K also in brain homeostasis has

Dietary Supplements in Chemotherapy-Induced Peripheral Neuropathy: A New Hope?

Chemotherapy-induced peripheral neuropathy (CIPN) is one of the main and most prevalent side effects of chemotherapy, significantly affecting the quality of life of patients and the course of chemotherapeutic treatment. Nevertheless, despite its prevalence, the management of the CIPN is considered particularly challenging, with this condition often being perceived as very difficult or even impossible to prevent with currently available agents. Therefore, it is imperative to find better options for patients diagnosed with this condition. While the search for the new agents must continue, anothe

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… Schloss et al. [ 41 ] reported that vitamin B complex supplementation was statistically ineffective at preventing CIPN as compared to the placebo, although as indicated by the results of the Patient Neurotoxicity Questionnaire (PNQ), patients taking the vitamin B complex perceived a reduction in sensory … As described in the aforementioned studies ( Table 2 ), vitamin B complex supplementation cannot be recommended as the main way of CIPN prevention. …

Targeting Reactive Oxygen Species Capacity of Tumor Cells with Repurposed Drug as an Anticancer Therapy.

Accumulating evidence shows that elevated levels of reactive oxygen species (ROS) are associated with cancer initiation, growth, and response to therapies. As concentrations increase, ROS influence cancer development in a paradoxical way, either triggering tumorigenesis and supporting the proliferation of cancer cells at moderate levels of ROS or causing cancer cell death at high levels of ROS. Thus, ROS can be considered an attractive target for therapy of cancer and two apparently contradictory but virtually complementary therapeutic strategies for the regulation of ROS to treat cancer. Desp

The role of vitamin D in hematologic disease and stem cell transplantation.

Vitamin D is a steroid hormone with a broad range of biological effects ranging from the classical role as a mediator of calcium and phosphate balance to cellular differentiation and immune modulation. These effects impact normal and dysfunctional hematopoietic and immune function, which may allow an avenue for improved treatment and support of patients suffering from hematologic disorders. In this review, we will summarize the role of vitamin D in normal hematopoiesis, discuss ways in which vitamin D may improve outcomes, and discuss a potential role of vitamin D for treating hematologic diso

Витамин К: Инфекция, воспаление и автоиммунитет.

Витамин К (VK) состоит из группы веществ с биоактивностью хлорофилла квинона и существует в природе в виде VK1 и VK2. Так как его первоначальное распознавание было основано на способности поощрять коагуляцию крови, он известен как витамин коагуляции. Однако, основываясь на обширных исследованиях, VK продемонстрировал потенциал в области профилактики и лечения различных заболеваний. В последние годы растет интерес к исследованиям, демонстрирующим благотворное воздействие ВК на иммунитет, способность к антиоксидантам, регулирование кишечника микробиота, развитие эпителии и защиту костей. В этой

Investigation and management of osteoporosis in aged trauma patients: a treatment algorithm adapted to the German guidelines for osteoporosis.

BACKGROUND: Osteoporosis-associated fractures are of increasing importance in trauma surgery. Systematic diagnostics and treatment of osteoporosis during a hospital stay, however, remain inadequate. Therefore, a specific algorithm for diagnosing and treating osteoporosis in trauma surgery patients was developed based on the DVO (German Osteology Society) guideline for osteoporosis from 2014. METHODS: In a first step, the individuals' age and risk profile for osteoporosis is identified considering specific fractures indicating osteoporosis and risk factors assessed by a specific questionnaire.

Dietary factors and their influence on immunotherapy strategies in oncology: a comprehensive review.

Immunotherapy is emerging as a promising avenue in oncology, gaining increasing importance and offering substantial advantages when compared to chemotherapy or radiotherapy. However, in the context of immunotherapy, there is the potential for the immune system to either support or hinder the administered treatment. This review encompasses recent and pivotal studies that assess the influence of dietary elements, including vitamins, fatty acids, nutrients, small dietary molecules, dietary patterns, and caloric restriction, on the ability to modulate immune responses. Furthermore, the article und

The effects of twenty-four nutrients and phytonutrients on immune system function and inflammation: A narrative review.

BACKGROUND AND AIM: Recently, optimal immune function has become a primary focus of worldwide attention not only in the prevention of chronic disease but also as one strategy to reduce the severity of acute illness. Inflammation, a process largely controlled by the immune system, has long been studied and recognized for its role in chronic disease. Optimizing immune function or managing inflammation using individual nutrients and phytonutrients is not well understood by the average person. Thus, this narrative literature review summarizes many of the more recent findings about how certain nutr

Metformin-Associated Functional Vitamin B12 Deficiency Presenting as Subacute Combined Degeneration in a 57-Year-Old Man With Diabetes Mellitus.

BACKGROUND Functional vitamin B12 deficiency, also known as metformin-associated cobalamin deficiency, can occur in patients receiving metformin due to impaired gastrointestinal absorption of vitamin B12. This condition can coexist with diabetic neuropathy and may result in impaired myelin formation in the spinal cord and peripheral nerves, leading to subacute combined degeneration of the spinal cord. This report describes a patient with diabetes mellitus and metformin-associated functional vitamin B12 deficiency who presented with subacute combined degeneration of the spinal cord and gastroin

Utilization of redox modulating small molecules that selectively act as pro-oxidants in cancer cells to open a therapeutic window for improving cancer therapy.

There is a rapidly growing body of literature supporting the notion that differential oxidative metabolism in cancer versus normal cells represents a metabolic frailty that can be exploited to open a therapeutic window into cancer therapy. These cancer cell-specific metabolic frailties may be amenable to manipulation with non-toxic small molecule redox active compounds traditionally thought to be antioxidants. In this review we describe the potential mechanisms and clinical applicability in cancer therapy of four small molecule redox active agents: melatonin, vitamin E, selenium, and vitamin C

Premature hair graying: a multifaceted phenomenon.

Premature hair graying (PHG) is the early loss of natural hair color, influenced by genetic, biological, and environmental factors. This review discusses the significant psychological impacts of PHG and explores its underlying mechanisms, related health conditions, and available treatments. The review examines the roles of genetics, oxidative stress, and lifestyle factors such as smoking and diet in premature graying. It also considers associated medical conditions and current and emerging treatment options. This overview aims to improve understanding of PHG and its broader implications.

High-Dose Vitamin C for Cancer Therapy.

In recent years, the idea that Vitamin C (Vit-C) could be utilized as a form of anti-cancer therapy has generated many contradictory arguments. Recent insights into the physiological characteristics of Vit-C, its pharmacokinetics, and results from preclinical reports, however, suggest that high-dose Vit-C could be effectively utilized in the management of various tumor types. Studies have shown that the pharmacological action of Vit-C can attack various processes that cancerous cells use for their growth and development. Here, we discuss the anti-cancer functions of Vit-C, but also the potenti

Rethinking corticosteroids use in oncology.

Corticosteroids (CSs), widely used in oncology for their anti-inflammatory and immunosuppressive properties, help manage cancer-related symptoms and side effects. However, their long-term use may negatively affect patient survival and exacerbate tumor progression. Elevated glucose and glutamine metabolism, disruption of vitamin D levels, and alterations in the microbiome are some of the key factors contributing to these adverse outcomes. Approaches such as ketogenic diets, fasting, sartans, and vitamin D supplementation have shown promise in providing similar benefits to CSs while mitigating t

Role of Dietary Antioxidants in p53-Mediated Cancer Chemoprevention and Tumor Suppression.

Cancer arises through a complex interplay between genetic, behavioral, metabolic, and environmental factors that combined trigger cellular changes that over time promote malignancy. In terms of cancer prevention, behavioral interventions such as diet can promote genetic programs that may facilitate tumor suppression; and one of the key tumor suppressors responsible for initiating such programs is p53. The p53 protein is activated by various cellular events such as DNA damage, hypoxia, heat shock, and overexpression of oncogenes. Due to its role in cell fate decisions after DNA damage, regulato

Сложные связи между человеком и бактериями: связи между множественным склерозом и микробиомом человека.

Множественный склероз (MS) — хроническое иммунопосредованное заболевание центральной нервной системы, патогенез которого связан со сложным взаимодействием между генетической предрасположенностью, экологическими факторами и дисрегуляцией иммунной реакции. Этот обзор критически обобщает имеющиеся данные исследований, демонстрирующих значительные изменения в составе микробиома человека у отдельных лиц с MS. В ходе этой работы обобщается нынешнее состояние знаний о составе, разнообразии и дисбиозе кишечного микробиома в MS, при этом подчеркивается неоднородность наблюдаемых микробных изменений в з

Потенциальные патогенные и защитные генотипы и фенотипы связующего белка витамина D в множестве склероза.

Основным источником белка витамина D и его метаболитов в плазме является связующий белок витамина D (VDBP) или групповой компонент (Gc). Два единичных нуклеотидных полиморфизма - rs7041 и rs4588 в гене GC - приводят к трем крупным VDBP/Gc генотипам, GC1F (c.1296T, c.1307C), GC1S (c.1296G, c1307C), GC2 (c.1296T, c1307A) и фенотипам, Gc1F (p.432Asp, p.436Thr), Gc1S (p.432Glu, p.436Thr) и Gc2 (p.432Asp, p.436Lys). В этом исследовании были изучены частоты генотипов и фенотипов GC у кувейтских пациентов с множественным склерозом (МС) и здоровым контролем, а также их связи с 25 уровнями сыворотки ги

Hematology

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Association of coronary artery disease related single nucleotide-polymorphisms with extreme Prakriti types: Insights from a case control study.

BACKGROUND: Coronary artery disease has well-established genetic variants but identification of susceptible ones is needed. Ayurveda stratifies people phenotypically termed as "Prakriti" to assess the risk. OBJECTIVES: The present research was aimed to identify Prakriti stratified genetic risks for CAD. MATERIAL AND METHODS: Initially, literature search was done using bioinformatics and manual-curation, to identify susceptible SNPs. Further, global-screening-array was performed to evaluate association of these polymorphisms in Prakriti stratified 200 CAD patients and 100 healthy controls. Th