PMID- 26166607 OWN - NLM STAT- MEDLINE DCOM- 20160606 LR - 20190728 IS - 1873-4286 (Electronic) IS - 1381-6128 (Linking) VI - 21 IP - 25 DP - 2015 TI - Impact of Metformin on Male Reproduction. PG - 3621-33 AB - Male infertility has been increasing over the last decades being nowadays a pressing health problem. Diabetes mellitus (DM) can contribute directly or indirectly to male infertility due to an abnormal spermatogenesis, which results in a decreased sperm quality. Type 2 Diabetes mellitus (T2DM) is responsible for the vast majority of DM cases, being frequently treated with oral antidiabetic drugs. Metformin is the most cost-effective therapy for the treatment of T2DM. This biguanide is an oral insulin-sensitizing agent capable of increasing insulin sensitivity and decreasing plasma fasting insulin levels. The main metabolic action of this drug occurs in the liver. However, it has been shown that metformin acts on a variety of organs including the male reproductive system. With the rising numbers of diabetic individuals among younger populations, there is an increase in the consumption of metformin in individuals of this age group. As a result, it is important to discuss the role of metformin in male fertility. This review presents the most recent data available from studies on the effects of metformin on male reproductive system. Together with the discussion of these effects, their significance to male fertility is also debated. FAU - Ferreira, Carolina AU - Ferreira C FAU - Sousa, Mario AU - Sousa M FAU - Rabaca, Ana AU - Rabaca A FAU - Oliveira, Pedro F AU - Oliveira PF FAU - Alves, Marco G AU - Alves MG FAU - Sa, Rosalia AU - Sa R AD - Department of Microscopy, Laboratory of Cell Biology, ICBAS-UP, UMIB, Rua Jorge Viterbo Ferreira 228, Building 1, Floor 2, Room 03, 4050-313 Porto, Portugal. rmsa@icbas.up.pt. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - United Arab Emirates TA - Curr Pharm Des JT - Current pharmaceutical design JID - 9602487 RN - 0 (Hypoglycemic Agents) RN - 9100L32L2N (Metformin) SB - IM MH - Animals MH - Diabetes Mellitus, Type 2/*drug therapy/metabolism MH - Humans MH - Hypoglycemic Agents/administration & dosage/*pharmacology/therapeutic use MH - Infertility, Male/*etiology/metabolism/prevention & control MH - Male MH - Metformin/adverse effects/*pharmacology/therapeutic use MH - Reproduction/*drug effects MH - Sertoli Cells/drug effects/metabolism MH - Spermatogenesis/drug effects EDAT- 2015/07/15 06:00 MHDA- 2016/06/09 06:00 CRDT- 2015/07/14 06:00 PHST- 2015/05/23 00:00 [received] PHST- 2015/07/08 00:00 [accepted] PHST- 2015/07/14 06:00 [entrez] PHST- 2015/07/15 06:00 [pubmed] PHST- 2016/06/09 06:00 [medline] AID - CPD-EPUB-68757 [pii] AID - 10.2174/1381612821666150710150041 [doi] PST - ppublish SO - Curr Pharm Des. 2015;21(25):3621-33. doi: 10.2174/1381612821666150710150041.