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Vitamin D AND Semen Volume

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https://read.qxmd.com/read/30618415/the-effect-of-vitamin-d-on-sperm-motility-and-the-underlying-mechanism
#1
Kadiliya Jueraitetibaike, Zheng Ding, Dan-Dan Wang, Long-Ping Peng, Jun Jing, Li Chen, Xie Ge, Xu-Hua Qiu, Bing Yao
Vitamin D deficiency is a common health issue around the world. We therefore evaluated the associations of semen quality with both serum and seminal plasma vitamin D levels and studied the mechanisms underlying these by incubating spermatozoa with 1,25(OH)2 D In vitro. Two hundred and twenty-two men were included in our study. Vitamin D was detected using an electrochemiluminescence method. Spermatozoa used for In vitro experiments were isolated by density gradient centrifugation. Positive relationships of serum 25(OH)D with semen volume and seminal plasma fructose were identified...
January 1, 2019: Asian Journal of Andrology
https://read.qxmd.com/read/30475967/effect-of-nut-consumption-on-semen-quality-and-functionality-in-healthy-men-consuming-a-western-style-diet-a-randomized-controlled-trial
#2
Albert Salas-Huetos, Rocío Moraleda, Simona Giardina, Ester Anton, Joan Blanco, Jordi Salas-Salvadó, Mònica Bulló
Background: Human semen quality has declined in industrialized countries. Pollution, smoking, and the consumption of a Western-style diet are all hypothesized as potential causes. Objective: We evaluated the effect of chronic consumption of nuts on changes in conventional semen parameters and the potential mechanisms implicated. Design: The FERTINUTS study was a 14-wk randomized, controlled, parallel trial. A total of 119 healthy men, aged 18-35 y, were allocated to 1 of 2 intervention groups: one group was fed the usual Western-style diet enriched with 60 g of a mixture of nuts/d (nut group), and the other was fed the usual Western-style diet avoiding nuts (control group)...
November 1, 2018: American Journal of Clinical Nutrition
https://read.qxmd.com/read/27868249/effects-of-supplemental-dietary-vitamin-c-on-quality-of-semen-from-nile-tilapia-oreochromis-niloticus-breeders
#3
Nlaf Sarmento, Eff Martins, D C Costa, W S Silva, C C Mattioli, M R Luz, R K Luz
The objective of this study was to evaluate the effects of vitamin C on growth and quality of semen from Oreochromis niloticus breeders. One hundred and sixty males were fed with different levels of vitamin C (0, 261, 599 and 942 mg/kg diet). The higher weight values were recorded for 599 (166 g) and 942 (175 g) mg of vitamin C/kg diet. Sperm motility, vigour and concentration were higher with 599 and 942 mg of vitamin C/kg diet. The semen volume, gonadosomatic index and plasma protein data from the last week showed a direct relationship with increasing levels of vitamin C...
February 2017: Reproduction in Domestic Animals
https://read.qxmd.com/read/24745668/effects-of-dietary-n-3-fatty-acids-and-vitamin-c-on-semen-characteristics-lipid-composition-of-sperm-and-blood-metabolites-in-fat-tailed-moghani-rams
#4
RANDOMIZED CONTROLLED TRIAL
M Jafaroghli, H Abdi-Benemar, M J Zamiri, B Khalili, A Farshad, A A Shadparvar
Sixteen fertile rams were randomly allotted to four groups and fed either of the four diets for 14 weeks: (1) control diet (COD) without fish oil (FO) and vitamin C (VC), (2) diet containing 2.5% FO (FOD), (3) diet containing 300 mg/kg DM VC (VCD), and (4) diet containing 2.5% FO and 300 mg/kg DM VC (FCD). Semen was collected at 14-d intervals from 1 April to 10 July (out of the physiologic breeding season in Iran). Semen volume and percentages of motile and progressively motile sperm were increased by FO and VC feeding...
June 10, 2014: Animal Reproduction Science
https://read.qxmd.com/read/19517319/elocalcitol-a-vitamin-d3-analog-for-the-potential-treatment-of-benign-prostatic-hyperplasia-overactive-bladder-and-male-infertility
#5
Atul Tiwari
Elocalcitol, which had been under development by BioXell SpA, is a synthetic derivative of vitamin D3 that regulates cell proliferation and apoptosis via its binding to the vitamin D receptor. In preclinical studies, elocalcitol inhibited the androgen-dependent and androgen-independent proliferation of benign prostatic hyperplasia (BPH) cells more potently than finasteride, a 5alpha-reductase inhibitor. In a phase IIb trial in patients with BPH, treatment with elocalcitol resulted in a significantly reduced prostate volume compared with placebo; irritative urinary symptoms (frequency, urgency and nocturia) and urodynamic parameters were comparable to the alpha1-adrenoceptor antagonist tamsulosin...
June 2009: IDrugs: the Investigational Drugs Journal
https://read.qxmd.com/read/9374315/effects-of-dietary-selenium-and-vitamin-e-on-boar-performance-and-tissue-responses-semen-quality-and-subsequent-fertilization-rates-in-mature-gilts
#6
J Marin-Guzman, D C Mahan, Y K Chung, J L Pate, W F Pope
Three experiments involving 192 crossbred boars evaluated the effects of dietary Se (0 or .5 ppm) and vitamin E (0 or 220 IU/kg) on growth, tissue Se, and alpha-tocopherol concentrations, and on semen quality and its subsequent effect on fertilization rate in mature gilts. Diets formulated used torula yeast and dextrose or cornstarch as the basal feedstuffs and were provided from weaning through sexual maturity. The basal diets averaged .063 ppm Se and 3.46 mg alpha-tocopherol/kg diet. Experiment 1 was a 2 x 2 factorial and conducted as a randomized complete block design in six replicates...
November 1997: Journal of Animal Science
https://read.qxmd.com/read/9027612/the-role-of-prostate-specific-antigen-in-the-chemoprevention-of-prostate-cancer
#7
REVIEW
E D Crawford, E P DeAntoni, C A Ross
An understanding of the natural history of changes in prostate-specific antigen (PSA) may be valuable as a surrogate view of prostate dynamics, as a method to differentiate between benign and malignant growth, and as a means to assess the use of PSA as a tool for monitoring activity of chemoprevention agents. Although PSA appears to be useful as a noninvasive marker of prostatic growth, PSA changes should not be confused with a direct measure of tumor growth. Serum PSA levels are a function of tumor volume but are also influenced by the volume of benign epithelium, grade of carcinoma (if any), inflammation, androgen levels, growth factors, and the extracellular matrix...
1996: Journal of Cellular Biochemistry. Supplement
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