Abstract. Research conducted in recent years provides more and more evidence that diet can have a significant impact on male fertility. The aim of the study Concord chicas escort was to analyze the relationship between diet, energy balance and fertility in men. A comprehensive literature search of published studies in various languages, was carried out in electronic databases. The direct analysis included 96 works published between 2008 and 2018, including 12 randomized controlled trials and 23 systematic reviews and meta-analyses. A strong adherence to a healthy dietary pattern is positively correlated with total sperm count, progressive motility and total motile sperm count (all p < 0.05). However, attention is drawn to the fact that foods that are considered “healthy” can sometimes contain a significant amount of pollution, which negatively affect the semen parameters. An adequate intake of antioxidants or their supplementation have been quite effective in the prevention and treatment of male infertility. The improvement of pregnancy rate after antioxidant therapy ranged in various studies from 11% to 41%. An important problem, however, may be choosing the right dose of the supplement or finding an appropriate combination of antioxidants that may be more effective than any single antioxidant. The normalization of men's body weight is beneficial for the quality of sperm and the concentration of male reproductive hormones. Further, long-term studies require the assessment of the impact of drastic weight loss after bariatric surgery on male fertility.
The brand new incidence off infertility certainly couples away from reproductive age brackets, according to some sources, out-of 8% so you’re able to 25% [1–3]. Male sterility ‘s the just cause for sterility in 20–30% away from instances and you can a factor adding to infertility inside 50% of all of the infertility times . The new review from male potency constantly is sold with scientific examination and you may evaluation into resource beliefs of following the semen details: volume, complete sperm fertility, attention, motility and you will morphology (Table 1) . Reduced sperm count and/or top quality is present in the 90% regarding lovers having virility difficulties . From the review of fertility, new concentrations away from men reproductive hormones also are assessed. Recently, the latest unit composition of spunk structure, reviewed by evaluating the level of DNA fragmentation or oxidative worry has been increasingly considered. Multiple degree make use of the DNA fragmentation list (DFI) just like the a sign of pregnancy achievement. Predicated on Evenson and you will Wixon, DFI range off three to five% when you look at the fit boys, while you are a beneficial DFI out-of ? 30% try of shorter virility . Currently discussed genetic items, also each other chromosomal aberrations and you may monogenic alter, take into account just about ten–15% from cases of men sterility . The source for fertility problems can also be environmental issues. The goal of the study would be to get acquainted with the relationship ranging from diet, times equilibrium and you will fertility prices during the boys.
Method out-of literature lookup
A comprehensive literature search of published studies in various languages, was carried out in electronic databases, including: PubMed, Cochrane Central Register of Controlled Trials (CENTRAL), Cochrane Database of Systematic Review and Google Scholar. Randomized controlled trials, observational and qualitative studies published between 2008 and 2018 (up to and including March) were included. The following keywords related to male infertility, diet, nutrients and their combinations (made by applying operators AND and OR) were used in the search: ‘male infertility’, ‘sperm quality’, ‘idiopathic oligozoospermia’, ‘astenoazospermia’, ‘oligoastenoteratozoospermia’, ‘sperm DNA damage’, ‘nutritional status’, ‘BMI’, ‘obesity’, ‘diet’, ‘nutrition’, dietary pattern’, ‘food’, ‘nutrient’, ‘fatty acids’, ‘antioxidant’, ‘supplementation’, ‘vitamin C’, ‘vitamin E’,’ vitamin A’, ‘folate’, ‘zinc’, ‘selenium’, ‘L-carnitine’, ‘glutathione’, ‘coenzyme Q10‘, ‘N-acetylcysteine’, ‘lycopene’. Reference lists of studies extracted from the primary electronic search were used to identify additional relevant studies.
|Sperm parameter||Reference maximum (95% confidence durations)|
|Sperm frequency||1.5 ml (step 1.4–1.7)|
|Total sperm count||39 mil per ejaculate (33–46)|
|Sperm focus||fifteen billion each ml (12–16)|
|Efforts||58% live (55–63)|
|Modern motility||32% (31–34)|
|Overall (modern + nonprogressive) motility||40% (38–42)|
|Morphologically typical models||cuatro.0% (3.0–4.0)|