hrp0097p1-558 | Pituitary, Neuroendocrinology and Puberty | ESPE2023

Do perinatal history and mode of delivery affect age at menarche? Preliminary data of girls with Greek origin

Tsinopoulou Vasiliki-Rengina , P. Kotanidou Eleni , Bacopoulou Flora , Fidani Liana , Galli-Tsinopoulou Assimina , Christoforidis Athanasios

Objectives: Age at menarche depends on genetic, environmental, epigenetic and other factors. Studies have shown that aspects of perinatal history, including birth weight, mode of delivery (caesarian section or vaginal delivery) and gestational week at birth influence the onset of puberty. The purpose of this study was to record the age at menarche in a sample of Greek girls and to correlate it with their perinatal history, the mothers’ age at menarche, t...

hrp0097p1-549 | Pituitary, Neuroendocrinology and Puberty | ESPE2023

Single nucleotide polymorphisms (SNPs) of the LIN28B gene and age at menarche in a sample of Greek girls

Tsinopoulou Vasiliki-Rengina , P. Kotanidou Eleni , Bacopoulou Flora , Fidani Liana , Gerou Spyridon , Galli-Tsinopoulou Assimina , Christoforidis Athanasios

Objectives: Menarche is defined as the first menstrual bleeding in females, and the age of onset varies and depends on a complex interaction between genetic and environmental factors. The LIN28B gene single nucleotide polymorphisms (SNPs) rs314276, rs7759938 and rs314280 appear to be associated with cases of premature and early menarche. International databases report that the presence of a G allele of rs314280SNP shifts menarche 1.2 months earlier, a C allele...