The raison d'etre of this website is to provide you with hard scientific information which may help you make informed decisions in your quest for health (so far I have blogged concise summaries of over 1,500 scientific studies and have had three books published).

My research is mainly focused on the effects of cholesterol, saturated fat and statin drugs on health. If you know anyone who is worried about their cholesterol levels and heart disease, or has been told to take statin drugs you could send them a link to this website, and to my statin or cholesterol or heart disease books.

David Evans

Independent Health Researcher

Wednesday, 11 July 2012

Statins reduce male fertility

This study was published in Endocrine Abstracts 2010 22 P526

Study title and authors:
Effects of atorvastatin on male fertility
Hanae Pons-Rejraji1,2, Benoit Sion1, Florence Brugnon1,2, Christine Artonne1, Gérald Gouby3, Geneviève Grizard1,2, Laurent Janny1,2 & Igor Tauveron4
1EA975, Laboratoire Biologie de la Reproduction, UFR Médecine, Université Clermont 1, Clermont-Ferrand, France; 2CHU Clermont Ferrand, Hôtel Dieu, Biologie de la Reproduction, CECOS, Clermont-Ferrand, France; 3Clermont-Ferrand, Délégation à la Recherche Clinique & à l’Innovation, Clermont-Ferrand, France; 4CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Service d’endocrinologie, Clermont-Ferrand, France.

This study can be accessed at:

High levels of the enzyme Alpha-glucosidase are associated with higher percentages of sperm that have good motility.

The Acrosome is the "cap" on the head of the sperm that contains enzymes that make it possible for the sperm to penetrate the egg.

The aim of the study was to analyze the consequences on sperm parameters with atorvastatin (Lipitor) intake. The study included 17 men who were administered 10 mg/day of atorvastatin for five months. Various sperm parameters were measured before taking the treatment, after 5 months of treatment, and 3 months after its withdrawal.

The study found:
(a) Live spermatozoa percentage was reduced by atorvastatin by 8%.
(b) Concentrations of alpha-glucosidase were significantly decreased 3 months after ending the atorvastatin treatment.
(c) Significantly high concentrations of spermatozoa had spontaneously lost their acrosome 3 months after ending the atorvastatin treatment.

The results from the study indicate that atorvastatin treatment may reduce male fertility.