Nutrição e Fertilidade – Artigo 07
Increased oxidative stress is associated with insulin resistance and infertility in polycystic ovary syndrome
Objectives: The present study aims to investigate the role of oxidant-antioxidant status in young women with polycystic ovary syndrome (PCOS). Material and methods: Seventy-one women with PCOS and 53 healthy controls are compared in aspect of demographic
characteristics, biochemical data, hormones, and oxidant-antioxidant status. Results: The PCOS group had significantly lower zinc, higher malondialdehyde and gluthathione peroxidase and lower serum catalase levels than the ...
Nutrição e Fertilidade – Artigo 13
Highly prevalence of vitamin D deficiency among Brazilian women of reproductive age
Vitamin D has several metabolic functions and possible reproductive functions. This study aimed to determine the prevalence of vitamin D deficiency among Brazilian women of reproductive age, and to evaluate the relationship between serum 25-hydroxyvitamin D [25(OH)D] concentrations and infertility causes. Subjects and methods: This retrospective cross-sectional study evaluated data from a private Brazilian assisted reproduction center that were collected between January 1 and May 5, 2012. Serum 25(OH)D ...
Nutrição e Fertilidade – Artigo 06
High Prevalence of Vitamin D Deficiency in Infertile Women Referring for Assisted Reproduction
A comprehensive analysis of the vitamin D status of infertile women is the first step in understanding hypovitaminosis impact on reproductive potential. We sought to determine vitamin D profiles of women attending an infertility center and to investigate non-dietary
determinants of vitamin D status in this population. In this cross-sectional analysis, a cohort of 1072 women (mean age standard deviation 36.3 4.4 years) attending an academic infertility center was used to examine serum 25-hyd...
Nutrição e Fertilidade – Artigo 05
Effect of Myoinositol and Antioxidants on Sperm Quality in Men with Metabolic Syndrome
This prospective longitudinal study investigated the effects of a dietary supplement in patients affected by reduced sperm motility
(asthenospermic males) with metabolic syndrome. The product tested was Andrositol, which contains myoinositol (MI) as
principal compound, in association with other molecules, and the parameters evaluated were semen characteristics as well as
hormone and metabolic profiles. The inclusion criteria were subjects aged over 18 years, with asthenospermia and metabolic
syndrom...
Nutrição e Fertilidade – Artigo 04
Dietary fatty acids affect semen quality: a review
Mammalian spermatozoa are characterized by a high proportion of polyunsaturated fatty acids (PUFA) which play a crucial role in
fertilization. This review focuses on analysis of sperm fatty acid profiles and the effects of omega-3, saturated and trans dietary and
sperm fatty acids on sperm parameters. Two major points have been pivotal points of investigation in the field of sperm fatty acid
profiles: first, the comparison between fatty acid profiles of fertile and infertile men and second, the effect of dietary fatty acids on
sperm ...
Nutrição e Fertilidade – Artigo 03
Comparing the Effectiveness of Dietary Vitamin C and Exercise Interventions on Fertility Parameters in Normal Obese Men
Purpose: Comparing the effectiveness of dietary vitamin C and weight loss exercises interventions for weight losson semen characteristics in normal obese man.
Materials and Methods: A total number of 200 men were randomly allocated into two groups based on body mass index, exercise and vitamin C groups. Also, 50 men with normal spermogram were placed in a control group.
In exercise group, a 6 months intensive exercise program was designed under a coach’s supervision ...
Nutrição e Fertilidade – Artigo 02
Antioxidants and Polyphenols: Concentrations and Relation to Male Infertility and Treatment Success
Oxidative stress is induced by reactive oxygen substances (ROS) that are known to affect male fertility.The aims of this study were
to prospectively investigate and characterize total antioxidant and specifically polyphenols concentrations and their relations to
sperm quality and fertility treatment success. During their infertility treatment, sixty-seven males were prospectively recruited
to this study. After separation of the sperm from the semen sample, the semen fluid samples antioxi...
Nutrição e Fertilidade – Artigo 01
Antioxidant supplements and semen parameters: An evidence based review
Many studies have focused on male infertility. There is limited evidence about the influence of nutrition on quality of semen. Approximately, 30-80% of infertility cases are caused by oxidative stress and decreased level of seminal total antioxidant capacity. This study was aimed to review the effects of oral antioxidant supplements on improving major semen parameters such as sperm concentration, motility, morphology, DNA damage, and fertility rate. Data were extracted from PubMed and Google scholar database by using the ...
