Diskussion:Maca

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J Ethnopharmacol. 2006 Feb 20;103(3):448-54. Epub 2005 Sep 19. Gonzales C: Effect of short-term and long-term treatments with three ecotypes of Lepidium meyenii (MACA) on spermatogenesis in rats. Zitat: Lepidium meyenii (Brassicaceae), known as Maca, is a Peruvian hypocotyl that grows exclusively between 4000 and 4500 m above sea level in the central Andes...untertelung in: Maca (Red, Yellow and Black)

Inhaltsstoffe:

  • macamide
  • macaene

Studienlage 2006 rückwärts bis 2002

  • Cell Biol Toxicol. 2006 Mar;22(2):91-9. Epub 2006 Mar 9.

Valentova K: The in vitro biological activity of Lepidium meyenii extracts. Hinweis auf eine östrogen analoge wirkung auf isolierte zellen einer brustkrebszelllinie des menschen

  • Food Chem Toxicol. 2006 Feb 27;

Rubio J: Lepidium meyenii (Maca) reversed the lead acetate induced-Damage on reproductive function in male rats. Beobachtete schutzwirkung gegen bleiazetat von maca extrakten auf geschlechtsorgane männlicher ratten

  • J Ethnopharmacol. 2006 Apr 21;105(1-2):274-9. Epub 2006 Feb 8.

Zhang Y: Effect of ethanol extract of Lepidium meyenii Walp. on osteoporosis in ovariectomized rat. Mögliche schutzwirkung von maca bei der osteoporose

  • J Ethnopharmacol. 2006 Apr 6;104(3):415-7. Epub 2005 Oct 18.

Bogani P: Lepidium meyenii (Maca) does not exert direct androgenic activities. Kein hinweis auf eine direkte androgene wirkung

  • J Ethnopharmacol. 2006 Feb 20;103(3):448-54. Epub 2005 Sep 19.

Gonzales C: Effect of short-term and long-term treatments with three ecotypes of Lepidium meyenii (MACA) on spermatogenesis in rats. In conclusion, there were differences in the biological response of the three ecotypes of Maca (Yellow, Red and Black). Black Maca appeared to have more beneficial effect on sperm counts and epididymal sperm motility.

  • Toxicol Rev. 2005;24(1):11-35.

Valerio LG : Toxicological aspects of the South American herbs cat's claw (Uncaria tomentosa) and Maca (Lepidium meyenii) : a critical synopsis. Maca is a clear example of a herb with substantial medicinal use in traditional herbal medicine by indigenous cultures in South America since the first recorded knowledge of it in the seventeenth century. The hypocotyls of maca are the edible part of the plant used for nutritional and proposed fertility-enhancing properties. Maca has been described to possess many other medicinal properties in traditional herbal medicine but only a few of them have been well studied scientifically. Published clinical studies of maca seem to be related to its property as a nutrient, for male fertility and for energy. There are inadequate data regarding the precise mechanism of action of maca. Some studies suggest that secondary metabolites found in maca extracts are important constituents responsible for its physiological effects. Maca has been reported in the scientific literature to have a low degree of acute oral toxicity in animals and low cellular toxicity in vitro.

  • Reprod Biol Endocrinol. 2005 May 3;3(1):16.

Ruiz-Luna AC: Lepidium meyenii (Maca) increases litter size in normal adult female mice. Yellow Maca erhöht die zahl der geborenen mäuse bei einem wurf http://www.pubmedcentral.gov/articlerender.fcgi?tool=pubmed&pubmedid=15869705

  • Asian J Androl. 2005 Mar;7(1):71-6.

Bustos-Obregon E: Lepidium meyenii (Maca) reduces spermatogenic damage induced by a single dose of malathion in mice. http://www.asiaandro.com/1008-682X/7/71.htm

  • Reprod Biol Endocrinol. 2005 Jan 20;3(1):5.

Gonzales GF : Red maca (Lepidium meyenii) reduced prostate size in rats. Maca hat eine antiprofiferative wirkung auf die prostata bei ratten http://www.pubmedcentral.gov/articlerender.fcgi?tool=pubmed&pubmedid=15661081

  • Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub. 2003 Dec;147(2):119-30.

Valentova K: Smallanthus sonchifolius and Lepidium meyenii - prospective Andean crops for the prevention of chronic diseases. http://publib.upol.cz/~obd/fulltext/Biomed/2003/2/119.pdf

  • Altern Med Rev. 2004 Mar;9(1):4-16.
McKay D.:Nutrients and botanicals for erectile dysfunction: examining the evidence.

.. arginine, yohimbine, Panax ginseng, Maca, and Ginkgo biloba all have some degree of evidence they may be helpful for erectile dysfunction. http://www.thorne.com/altmedrev/.fulltext/9/1/4.pdf

  • J Vet Med Sci. 2003 Oct;65(10):1145-6.

Oshima M: Effects of Lepidium meyenii Walp and Jatropha macrantha on blood levels of estradiol-17 beta, progesterone, testosterone and the rate of embryo implantation in mice. Maca stimuliert den progesteronspiegel und testosteronspiegel bei mäusen

  • J Endocrinol. 2003 Jan;176(1):163-8.

Gonzales GF : Effect of Lepidium meyenii (Maca), a root with aphrodisiac and fertility-enhancing properties, on serum reproductive hormone levels in adult healthy men. Eine randomisierte doppelt verblindete studie zeigt beim menschen keine wirkung auf den hormonhaushalt gesunder probanden durch Maca Gelatinizada. http://joe.endocrinology-journals.org/cgi/reprint/176/1/163

  • Andrologia. 2002 Dec;34(6):367-72.

Gonzales GF: Effect of Lepidium meyenii (MACA) on sexual desire and its absent relationship with serum testosterone levels in adult healthy men. Eine randomisierte doppelt verblindete studie zeigt bei männern dass maca den testosteron und östradiolspiegel nicht beeinflusst aber das sexuelle verlangen steigert. http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH7-44NY6C6-H&_coverDate=01%2F31%2F2002&_alid=408316359&_rdoc=1&_fmt=&_orig=search&_qd=1&_cdi=5275&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=f0c026b15cacb849be4c8ba326c9e77e


  • Asian J Androl. 2001 Dec;3(4):301-3.

Gonzales GF: Lepidium meyenii (Maca) improved semen parameters in adult men. METHODS: Nine men received tablets of Maca (1500 or 3000 mg/day) for 4 months. RESULTS: Treatment with Maca resulted in increased seminal volume, sperm count per ejaculum, motile sperm count, and sperm motility. Serum hormone levels were not modified with Maca treatment. Increase of sperm count was not related to dose of Maca. CONCLUSION: Maca improved sperm production and sperm motility by mechanisms not related to LH, FSH, PRL, T and E2

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