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https://www.readbyqxmd.com/read/29359412/influences-of-dietary-supplementation-with-lepidium-meyenii-maca-on-stallion-sperm-production-and-on-preservation-of-sperm-quality-during-storage-at-5-%C3%A2-c
#1
RANDOMIZED CONTROLLED TRIAL
C Del Prete, S Tafuri, F Ciani, M P Pasolini, F Ciotola, S Albarella, D Carotenuto, V Peretti, N Cocchia
Stallion semen is damaged by oxidative stress during cooling and transport. Semen processing and extenders have been tested to improve the fertilizing capacity of semen and to preserve semen during transport. Dietary supplementation with natural antioxidants has been proposed to prevent oxidative damages. In this study, for the first time, the effect of dietary supplementation with Lepidium meyenii (Maca) on the characteristics of fresh and chilled stallion semen was evaluated. Maca is a traditional Andean crop used as a nutraceutical for the fertility-enhancing properties that are linked with antioxidant activity...
March 2018: Andrology
https://www.readbyqxmd.com/read/27621241/the-use-of-maca-lepidium-meyenii-to-improve-semen-quality-a-systematic-review
#2
REVIEW
Myeong Soo Lee, Hye Won Lee, Sooseong You, Ki-Tae Ha
The aim of this review was to assess the evidence for the effectiveness of maca (Lepidium meyenii) in improving semen quality. We searched 11 databases from their inception to March 2016 and included all clinical trials on the improvement of semen quality parameters in infertile and healthy men, regardless of the study design or the type of maca. The risk of bias for each study was assessed using the Cochrane criteria. The selection of studies, data extraction, and validation were performed independently by the first two authors...
October 2016: Maturitas
https://www.readbyqxmd.com/read/26421049/effect-of-lepidium-meyenii-walp-on-semen-parameters-and-serum-hormone-levels-in-healthy-adult-men-a-double-blind-randomized-placebo-controlled-pilot-study
#3
Ingrid Melnikovova, Tomas Fait, Michaela Kolarova, Eloy C Fernandez, Luigi Milella
Background/Aims. Products of Lepidium meyenii Walp. (maca) are touted worldwide as an alimentary supplement to enhance fertility and restore hormonal balance. Enhancing properties of maca on semen parameters in animals were previously reported by various authors, but we present to the best of our knowledge the first double-blind, randomized, placebo-controlled pilot trial in men. The aim of this study was to evaluate the effects of maca on semen parameters and serum hormone levels in healthy adult men. Methods...
2015: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/22575847/the-potential-influence-of-plant-based-feed-supplements-on-sperm-quantity-and-quality-in-livestock-a-review
#4
REVIEW
C Clément, U Witschi, M Kreuzer
The reproductive performance of male livestock is of economic importance, and improving semen quantity and quality, especially for artificial insemination, additionally helps to avoid the loss of valuable genotypes. The review focuses on the impact of oxidative stress on sperm production and quality in livestock, and the potential role of plant based anti-oxidants to control this impact. From scientific reports dealing with livestock, the paper compiles evidence on effective dietary measures affecting sperm production and quality...
May 2012: Animal Reproduction Science
https://www.readbyqxmd.com/read/20452008/effect-of-maca-supplementation-on-bovine-sperm-quantity-and-quality-followed-over-two-spermatogenic-cycles
#5
C Clément, J Kneubühler, A Urwyler, U Witschi, M Kreuzer
Maca (Lepidium meyenii Walpers), is an Andean crop that grows between 3,800 and 4,500 m a.s.l. The persistent interest in this plant is based on its assumed effects on fertility of male mammals due to the prevalence of certain, partially specific, secondary compounds. The present study aimed at evaluating the effect of maca supplementation on quality and quantity of semen, mating behavior, and clinical status of peripubertal breeding bulls. The experiment followed a cross-over design lasting for 23 wk with 3 wk of adaptation and baseline measurements, and 2 x 10 wk of treatment feeding thus covering two times the complete 8-wk spermatogenic cycle...
July 15, 2010: Theriogenology
https://www.readbyqxmd.com/read/20090350/lepidium-meyenii-maca-a-plant-from-the-highlands-of-peru-from-tradition-to-science
#6
REVIEW
Gustavo F Gonzales, Carla Gonzales, Cynthia Gonzales-Castañeda
This review summarizes the current state of knowledge on Lepidium meyenii (maca), a cruciferous plant (Brassicaceae family) which is cultivated exclusively at an altitude of 4,000-4,500 m in the Peruvian Central Andes. Maca is traditionally used for its nutritional and presumed medicinal properties. Over the past 20 years, interest in maca has increased in many parts of the world, and since 2005 maca is considered one of the seven Peruvian flag products. Maca is exported as powder, capsules, pills, flour, liquor, and extracts...
December 2009: Forschende Komplementärmedizin, Research in Complementary Medicine
https://www.readbyqxmd.com/read/11753476/lepidium-meyenii-maca-improved-semen-parameters-in-adult-men
#7
G F Gonzales, A Cordova, C Gonzales, A Chung, K Vega, A Villena
AIM: The present study was designed to determine the effect of a 4-month oral treatment with tablets of Lepidium meyenii (Maca) on seminal analysis in nine adult normal men aged 24-44 years old. METHODS: Nine men received tablets of Maca (1500 or 3000 mg/day) for 4 months. Seminal analysis was performed according to guidelines of the World Health Organization (WHO). Serum luteinizing hormone (LH), follicle stimulating hormone (FSH), prolactin (PRL), testosterone (T) and estradiol (E2) were measured before and after treatment...
December 2001: Asian Journal of Andrology
https://www.readbyqxmd.com/read/8582980/effects-of-nitric-oxide-on-human-spermatozoa-evidence-that-nitric-oxide-decreases-sperm-motility-and-induces-sperm-toxicity
#8
M Rosselli, R K Dubey, B Imthurn, E Macas, P J Keller
Endogenous nitric oxide (NO) is an important functional mediator in several physiological systems, including the reproductive system. However, when generated in excessive amounts for long periods, mainly during immunological reactions, NO is cytotoxic and cytostatic for invading microbes, as well as for the cells generating it and the tissues present around it. Since infertility associated with urogenital tract infection in males and females is also accompanied by reduced sperm motility and viability, it is possible that reduced fertility in these patients is due to NO-induced sperm toxicity...
July 1995: Human Reproduction
https://www.readbyqxmd.com/read/3796052/-fertilization-in-vitro-in-the-treatment-of-male-infertility
#9
E Maćas, E Suchanek, V Grizelj, V Simunić, I Puharić
Thirty marital couples were included in an in vitro fertilization study of male infertility. Second-degree oligospermia (less than or equal to 5 X 10(6)/ml mobile sperms) was found in 3 couples, first-degree oligospermia (less than or equal to 12 X 10(6)/ml mobile sperms) in 21 couples, and asthenospermia (less than 20% of mobile sperms) in 6 couples. The semen for insemination was prepared by the standard procedure and the overlay technique. After the separation (removal) of seminal fluid and capacitation the sperms were found to be significantly more mobile...
January 1986: Jugoslavenska Ginekologija i Perinatologija
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