Chá verde e efeitos à saúde – Artigo 01
Anti-Cancer Effects of Green Tea by Either Anti- or Pro-
Oxidative Mechanisms
Tea derived from the leaves and buds of Camellia sinensis (Theaceae) is consumed worldwide. Green tea
contains various components with specific health-promoting effects, and is believed to exert protective effects
against diseases including cancer, diabetes and hepatitis, as well as obesity. Of the various tea components, the
polyphenol catechins have been the subject of extensive investigation and among the ...
Nutrição e Fertilidade – Artigo 20
Zinc levels in seminal plasma and their correlation with male infertility: A systematic review and meta-analysis
Zinc is an essential trace mineral for the normal functioning of the male reproductive system. Current studies have investigated the relationship between seminal plasma zinc and male infertility but have shown inconsistent results. Hence, we systematically searched PubMed, EMBASE, Science Direct/ Elsevier, CNKI and the Cochrane Library for studies that examined the relations...
Nutrição e Fertilidade – Artigo 19
Zinc Levels in Seminal Fluid in Infertile Males and its Relation with Serum Free Testosterone
Introduction: The role of zinc is critical to reproduction potential. Seminal zinc is thought to be derived almost exclusively from prostatic secretions. Sperm motility is significantly influenced by zinc. Zinc deficiency has been linked with male sterility and subfertility.
Aim: To assess the influence of seminal plasma zinc on seminogram characteristics and whether endogenous testosterone affects ...
Nutrição e Fertilidade – Artigo 18
The zinc spark is an inorganic signature of human egg activation
Egg activation refers to events required for transition of a gamete into an embryo, including establishment of the polyspermy block, completion of meiosis, entry into mitosis, selective recruitment and degradation of maternal mRNA, and pronuclear development. Here we show that zinc fluxes accompany human egg activation. We monitored calcium and zinc dynamics in individual human eggs using selective fluorophores following ...
Nutrição e Fertilidade – Artigo 17
The role of vitamin D in reproductive dysfunction in women – a systematic review
Vitamin D is essential for the proper functioning of the human body. There is also evidence of its strong association with fertility problems in women. This review aims to evaluate the relationship between vitamin D and diseases affecting women’s fertility (polycystic ovarian syndrome (PCOS), uterine leiomyomas and endometriosis), and in vitro fertilization (IVF) outcome. A systematic review of the ...
Nutrição e Fertilidade – Artigo 16
The influence of ginger (Zingiber officinale) on human sperm quality and DNA fragmentation: A double-blind randomized clinical trial
Background: Although the effectiveness of ginger as an antioxidant agent has been exploited, little human research has been conducted on its activity on male reproductive functions. Objective: This study was designed to investigate the effects of ginger (Zingiber
officinale) on sperm DNA fragmentation (SDF) in infertile men. Materials and Methods: This ...
Nutrição e Fertilidade – Artigo 15
The effects of tomato juice on male infertility
This study aimed to investigate the effects of tomato juice consumption on seminal plasma lycopene levels and sperm parameters in infertile men. Methods and Study Design: Subjects were male infertility patients with poor sperm concentration (<20×106/mL) and/or motility (<50%). Following a fourweek observation period, subjects were randomly assigned among three groups: a tomato juice group, an antioxidant group, and a control group. The ...
Nutrição e Fertilidade – Artigo 14
The Deep Correlation between Energy Metabolism and Reproduction: A View on the Effects of Nutrition for Women Fertility
In female mammals, mechanisms have been developed, throughout evolution, to integrate environmental, nutritional and hormonal cues in order to guarantee reproduction in favorable energetic conditions and to inhibit it in case of food scarcity. This metabolic strategy could be
an advantage in nutritionally poor environments, but nowadays is affecting women’s health. ...
