Gonadal Maturation and Artificial Spawning of the Grooved Carpet Shell Clam, Ruditapes decussatus from Timsah Lake, Suez Canal, Egypt [PDF]
, 2021 Mahmoud Sami +2 more
openalex +1 more source
Haemoglobin polymorphism inGadus morhua: Genotypic differences in maturing age and within-season gonad maturation [PDF]
Helgoländer Meeresuntersuchungen, 1983 276 specimens of Atlantic cod (Gadus morhua L.) were caught during spawning in a restricted area of the Trondheimsfjord, Norway, in April and May 1979. Genotypes at the polymorphic haemoglobin locusHbl differed significantly with respect to mean age at maturation (in males) and mean gonadic development stage (in females).
J. Mork, R. Giskeödegård, G. Sundnes
openaire +1 more source
Gonadotropin and kisspeptin gene expression, but not GnRH, are impaired in cFOS deficient mice. [PDF]
, 2015 cFOS is a pleiotropic transcription factor, which binds to the AP1 site in the promoter of target genes. In the pituitary gonadotropes, cFOS mediates induction of FSHβ and GnRH receptor genes.
Coss, Djurdjica +3 more
core +1 more source
Animal Models and Experimental Medicine, EarlyView.We identified 45% HFD as the optimal formulation to establish a juvenile rat model of obesity‐related precocious puberty. It elicits robust phenotypic (early vaginal opening, obesity), histological (advanced ovarian development), and endocrine (elevated HPG axis hormones) alterations, with leptin‐mediated GnRH secretion as a core mechanistic driver ...
Jiayi Gong +5 more
wiley +1 more source
Identification of side population cells in mouse primordial germ cells and prenatal testis [PDF]
, 2011 In mammals, the stem cells of spermatogenesis are derived from an embryonic cell population called primordial germ cells (PGCs). Spermatogonial stem cells displaying the "side population" (SP) phenotype have been identified in the immature and adult ...
De Felici, Massimo +6 more
core +2 more sources
A preclinical mouse model mimicking the ovarian cancer‐induced estrogen deficiency‐depression axis
Animal Models and Experimental Medicine, EarlyView.A preclinical mouse model of ovarian cancer–related depression was developed by combining intraperitoneal tumor cell injection, ovariectomy, and chronic restraint stress. The model replicates key clinical features including estrogen deficiency, depressive‐like behaviors, and tumor progression, and provides a reliable tool for studying the endocrine ...
Jiamin Liu +6 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract Stages of embryonic development for reptiles have been presented in tables that may include all or part of embryonic development. When oviposition occurs in some lizards, embryos are already in the later stages of development; likewise, the size of the eggs increases as incubation time progresses.
Nivia Rocio Antonio‐Rubio +3 more
wiley +1 more source
Relative pleopod length as an indicator of size at sexual maturity in slipper (Scyllarides squammosus) and spiny Hawaiian (Panulirus marginatus) lobsters [PDF]
, 2005 Body size at gonadal maturity is described for females of the slipper lobster (Scyllarides squammosus) (Scyllaridae) and the endemic Hawaiian spiny lobster (Panulirus marginatus) (Palinuridae) based on microscopic examination of histological ...
DeMartini, Edward E. +3 more
core
The Anatomical Record, EarlyView.Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc +26 more
wiley +1 more source
Role of androgen and gonadotrophins in the development and function of the Sertoli cells and Leydig cells: data from mutant and genetically modified mice [PDF]
, 2009 Development and maintenance of the male phenotype and establishment of fertility are all dependent upon the activity of the Sertoli cells and Leydig cells of the testis.
Abel, M.H. +4 more
core +1 more source