Results 101 to 110 of about 4,930,458 (259)
ABSTRACT Background Reduced intrauterine growth might affect male reproductive health later in life, however, existing research remain inconclusive. Objectives To investigate the association between placental weight and birthweight Z‐scores and semen characteristics, testes volume, and reproductive hormone levels in young men.
Anne Gaml‐Sørensen +10 more
wiley +1 more source
ABSTRACT Background The Klinefelter syndrome is a common genetic cause of male infertility, and testicular sperm extraction (TESE) enables sperm retrieval in a subset of affected patients. However, predicting TESE success remains challenging due to the heterogeneous clinical and endocrinological presentation of the Klinefelter syndrome.
Murat Gül +14 more
wiley +1 more source
Adenosine—A Regulator of Human Testicular Peritubular Cells
ABSTRACT Background Extracellular purines, in particular ATP and adenosine, are regulators of physiological and pathophysiological processes throughout the human body. Roles in the human testis are emerging and include actions on peritubular cells, which form the wall of seminiferous tubules.
Lina Scholz +12 more
wiley +1 more source
Prepubertal nutrition alters Leydig cell functional capacity and timing of puberty [PDF]
Leydig cell functional capacity reflects the numbers and differentiation status of the steroidogenic Leydig cells in the testes and becomes more or less fixed in early adulthood with the final establishment of the hypothalamo-pituitary-gonadal (HPG) axis
Kenny, David A. +24 more
core +1 more source
ABSTRACT Background Diabetes mellitus (DM) induces multifaceted cellular and structural alterations in the male reproductive system, thereby predisposing to infertility. Objectives This study aimed to evaluate the morphological, stereological, biochemical, histopathological, and ultrastructural changes induced by DM in testicular tissue, and to ...
Ayşenur Kaya Mutlu, Süleyman Kaplan
wiley +1 more source
ABSTRACT Background Lower testosterone concentrations in older men are associated with poorer health outcomes. Objective We examined whether, on a background of lifestyle intervention, testosterone treatment modulates leucocyte telomere length, a postulated marker of biological ageing, in overweight men with impaired glucose tolerance (IGT) or newly ...
Bu B. Yeap +11 more
wiley +1 more source
Virilizing ovarian Leydig cell tumour [PDF]
Leydig cell tumours belong to the small group of ovarian steroid tumors, which are hormone producing and derived from specific stromal cells. Morphologically, their endocrine-like structure is characteristic, formed of large, polyhedral cells ...
K.V. Murali Mohan +4 more
core +1 more source
Image_2_Fibroblast Growth Factor 1 Promotes Rat Stem Leydig Cell Development.pdf
Fibroblast growth factor 1 (FGF1) is reported to be expressed in the testis. How FGF1 affects stem Leydig cell development remains unclear. Here, we report the effects of FGF1 on rat stem Leydig cell development in an ethane dimethane sulfonate (EDS ...
Xianwu Chen (5025428) +12 more
core +1 more source
Spatiotemporal Expression of ARRDC5 in Mammalian Spermatogenesis
ABSTRACT Background Spermiogenesis is the final phase of sperm development during which haploid round spermatids transform into specialized spermatozoa and occurs across distinct stages of sperm production in the seminiferous epithelium. Abnormalities in this process lead to malformations and an inability of sperm to fertilize eggs.
LeeLa D. Robinson, Jon M. Oatley
wiley +1 more source
Bone Health and Aging in Klinefelter Syndrome
ABSTRACT Klinefelter syndrome (KS) is typically diagnosed in young adults, but advances in prenatal testing have led to its recognition at a much earlier age. Conversely, diagnosis in late adulthood remains uncommon, but still occurs. Independently from the age at diagnosis, KS individuals now receive more accurate and tailored care management than in ...
Filippo Vignali +4 more
wiley +1 more source

