Diabetes is a chronic metabolic disorder characterized by hyperglycemia and associated with many health complications due to the long-term damage and dysfunction of various organs. A consequential complication of diabetes in men is reproductive dysfunction, reduced fertility, and poor reproductive outcomes. However, the molecular mechanisms responsible for diabetic environment-induced sperm damage and overall decreased reproductive outcomes are not fully established. We evaluated the effects of type 2 diabetes exposure on the reproductive system and the reproductive outcomes of males and their male offspring, using a mouse model. We demonstrate that paternal exposure to type 2 diabetes mediates intergenerational and transgenerational effects on the reproductive health of the offspring, especially on sperm quality, and on metabolic characteristics. Given the transgenerational impairment of reproductive and metabolic parameters through two generations, these changes likely take the form of inherited epigenetic marks through the germline. Our results emphasize the importance of improving metabolic health not only in women of reproductive age, but also in potential fathers, in order to reduce the negative impacts of diabetes on subsequent generations.

• Klíčová slova
• GAPDS, TERA, diabetes, fertility, molecular biomarkers, offspring, sperm, testes,
• MeSH
• diabetes mellitus 2. typu krev   chemicky indukované   genetika   MeSH
• dieta s vysokým obsahem tuků škodlivé účinky   MeSH
• experimentální diabetes mellitus MeSH
• fenotyp * MeSH
• infertilita krev   chemicky indukované   genetika   MeSH
• myši inbrední C57BL MeSH
• myši MeSH
• paternální dědičnost účinky léků   genetika   MeSH
• spermie účinky léků   fyziologie   MeSH
• streptozocin toxicita   MeSH
• těhotenství MeSH
• zvířata MeSH
• Check Tag
• mužské pohlaví MeSH
• myši MeSH
• těhotenství MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Názvy látek
• streptozocin MeSH