Results 111 to 120 of about 29,818 (258)
iScienceSummary: Gametogenesis drives the maturation of germ cell precursors into functional gametes, facilitated by interactions with the niche environment. However, the molecular mechanisms, especially in invertebrates, remain incompletely understood.
Huihui Wang, Hong Yu, Qi Li
doaj +1 more source
Reproduction Performances of Mud Crab (Scylla olivacea) Broodstocks with Different Feeds
International Journal of Agriculture System, 2015 Broodstock maturation diets is important research in order to increase the reproduction performance of spawning females. This research was conducted to determine the appropriate feed for mud crab broodstock spawned and as information in support of ...
Herlinah Herlinah, Early Septiningsih
doaj +1 more source
Pituitary-Gonad Relationships in Weight Selected Lines Differing in Sexual Maturity
Poultry Science, 1968 Abstract IT has been established that there is an interaction between the secretions of the gonad and the anterior pituitary. The gonadotropic content of the anterior pituitary of pullets at various levels of egg production has been studied in several laboratories (Phillips, 1942; Nakajo and Imai, 1957).
P B, Siegel, H P, Van Krey, H S, Siegel
openaire +2 more sources
Update on male reproductive endocrinology. [PDF]
, 2018 Practitioners of male reproductive and sexual medicine must have an intimate understanding of the physiology of male reproductive endocrinology, as such a knowledge is the cornerstone on which hormonal treatments are based.
Clavijo, Raul, Hsiao, Wayland
core +1 more source
Paediatric development of radiopharmaceutical imaging agents and radioligand therapeutics
British Journal of Clinical Pharmacology, EarlyView.Abstract This review focuses on the development of radiopharmaceutical imaging agents and radioligand therapeutics for paediatric use. Nuclear medicine plays an important role in the diagnosis and treatment of various childhood conditions, including cancers, infections and brain disorders.
Justin L. Hay +5 more
wiley +1 more source
Pesquisa Veterinária Brasileira, 2011 The morphofunctional aspects of oogenesis of Poecilia vivipara were studied aiming to understand the reproductive biology and development of species with internal fertilization, particularly those belonging to the family Poeciliidae.
Thiago L. Rocha +3 more
doaj +1 more source
The ageing holobiont: crosstalk between telomere dynamics, oxidative stress and the gut microbiome
Biological Reviews, EarlyView.ABSTRACT The gut tissue is at the frontline of early onset of ageing. It exhibits high cell turnover rates and rapid telomere shortening, which can have systemic effects on the developing or senescing organism. We conducted a literature review of studies on the crosstalk between telomere length dynamics, telomerase activity, oxidative stress, and gut ...
Michael L. Pepke +2 more
wiley +1 more source
Brazilian Journal of Biology, 2006 During gonadal maturation the females of Steindachnerina insculpta, a teleost of the Furnas reservoir, Minas Gerais, Brazil, show low hepatosomatic and high gonadossomatic indexes, suggesting possible transference of hepatic substances to the ovaries. In
V. M. A. Ribeiro +3 more
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Loss, persistence and reversal of phenotypic traits
Biological Reviews, EarlyView.ABSTRACT The irreversibility of complex trait loss has long been a tenet of evolutionary biology. However, this idea is increasingly at odds with the numerous documented exceptions across the Tree of Life. We synthesise this growing body of evidence across a diverse array of taxa and traits, exploring the evolutionary conditions that enable ...
Giobbe Forni +4 more
wiley +1 more source
Sexual differentiation and gonad development in striped mullet (Mugil cephalus L.) from South Carolina estuaries* [PDF]
, 2005 This study examined the sexual differentiation and reproductive dynamics of striped mullet (Mugil cephalus L.) in the estuaries of South Carolina.
McDonough, Christopher J. +2 more
core +1 more source