Results 111 to 120 of about 77,179 (233)

Comparison of some traits of economic importance in tilapias (Orechromis niloticus and Sarotherodon galilaeus) with particular reference to their culture in Ghana [PDF]

open access: yes, 2005
This study was conducted to determine which of the two major tilapia species in freshwater capture fisheries in Ghana, Oreochromis niloticus or Sarotherodon galilaeus, is more suitable for breed improvement and pond culture.
Attipoe, F.Y.K.   +2 more
core  

Complete male-to-female sex reversal in XY mice lacking the miR-17~92 cluster

open access: yesNature Communications
Mammalian sex determination is controlled by antagonistic gene cascades operating in embryonic undifferentiated gonads. The expression of the Y-linked gene SRY is sufficient to trigger the testicular pathway, whereas its absence in XX embryos leads to ...
Alicia Hurtado   +8 more
doaj   +1 more source

Central precocious puberty and gonadotropin releasing hormone agonist treatment [PDF]

open access: yes, 1996
In order to understand the processes occurring during precocious puberty, one needs to specify what is currently known about normal pubertal development.
Oostdijk, W. (Wilma)
core  

Low androgen signaling rescues genome integrity with innate immune response by reducing fertility in humans

open access: yesCell Death and Disease
Development of the gonads under complex androgen regulation is critical for germ cells specification. In this work we addressed the relationship between androgens and genomic integrity determining human fertility.
J. Zimmer   +7 more
doaj   +1 more source

Expression of three GnRH receptors in specific tissues in male and female sea lampreys Petromyzon marinus at three distinct life stages [PDF]

open access: yes, 2013
Two recently cloned gonadotropin-releasing hormone (GnRH) receptors (lamprey GnRH-R-2 and lamprey GnRH-R-3) along with lamprey (l) GnRH-R-1 were shown to share similar structural features and amino acid motifs common to other vertebrate receptors.
Daukss, Dana M.   +3 more
core   +1 more source

Swyer syndrome in a woman with pure 46, XY gonadal dysgenesis and a hypoplastic uterus [PDF]

open access: yesMalaysian Family Physician, 2013
Swyer syndrome or pure 46, XY gonadal dysgenesis is a condition in which the individuals have female appearance. They classically present as sexually infantile phenotypic females with primary amenorrhoea.
Azidah AK, Nik Hazlina NH, Aishah MN
doaj  

Gonadal Function and the Development of Coronary Heart Disease [PDF]

open access: yesCirculation, 1963
A B, RITTERBAND   +4 more
openaire   +2 more sources

Relations of environmental contaminants, algal toxins, and diet with the reproductive success of American alligators on Florida Lakes [PDF]

open access: yes, 2001
(113 page ...
Arnold, Beverly S.   +3 more
core  

Sex determination [PDF]

open access: yes, 2012
Multicellular animals are a diverse lot, with widely varied body plans and lifestyles. One feature they share, however, is a nearly universal reliance on sexual reproduction for species propagation.
Gamble, Tony
core   +1 more source

Cre/lox generation of a novel whole-body Kiss1r KO mouse line recapitulates a hypogonadal, obese, and metabolically-impaired phenotype. [PDF]

open access: yes, 2019
Kisspeptin and its receptor, Kiss1r, act centrally to stimulate reproduction. Recent evidence indicates that kisspeptin is also important for body weight and metabolism, as whole-body Kiss1r KO mice, developed with gene trap technology, display obesity ...
Kauffman, Alexander S   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy