Results 131 to 140 of about 88,721 (269)

Dietary L‐Tyrosine Sustains Egg Production and Quality by Modulating Promoter CpG Methylation, Gene Expression, and Hormone Profiles in Reproductive Signalling Pathways of Aged Laying Hens

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Managing prolactin (PRL)‐mediated reproductive suppression is critical for maintaining egg production in commercial laying hens. L‐tyrosine (TYR), a precursor of dopamine (DA), may counteract age‐related reproductive decline by suppressing PRL, thereby sustaining productivity and egg quality in late‐phase laying hens.
Hasan Hüseyin İpçak
wiley   +1 more source

Striking Suture Zone Mismatch Between Nuclear and Mitochondrial Markers in North African Chalcides ocellatus (Squamata: Scincidae)

Zoologica Scripta, EarlyView.
ABSTRACT Linnaean and Wallacean shortfalls remain pervasive even among common and widespread Mediterranean taxa, limiting our understanding of evolutionary history and species boundaries. The Ocellated Skink Chalcides ocellatus complex illustrates this issue, with disputed subspecific taxonomy and deep mitochondrial divergences across North Africa and ...
Paul Doniol‐Valcroze, Dave Lutgen, Menad Beddek, Boualem Dellaoui, Philippe Geniez, Olivier Peyre, Patricia Sourrouille, Pierre‐André Crochet   +7 more
wiley   +1 more source

Recurrent Goiter, Hyperthyroidism, Galactorrhea and Amenorrhea due to a Thyrotropin ans Prolactin-Producing Pituitary Tumor [PDF]

, 1976
Erhardt, F., Fahlbusch, R., Horn, K., Pickardt, C. R., Scriba, Peter Christian, Werder, Klaus von   +5 more
core   +1 more source

Effect of prolactin and growth hormone on prolactin and LH receptors in the dwarf mouse [PDF]

, 1976
Summary. Dwarf mice (DW/J; dw/dw) which exhibit a deficiency of prolactin and GH secretion were treated for 8 days with ovine prolactin and/or human GH (10 or 20 \g=m\g/day)and the effect on hepatic and testicular prolactin receptors was investigated. In
Friesen, H G, H. G. Bohnet, Bohnet, H G, H. G. Friesen   +3 more
core  

Through the Sands of Time: Evolutionary History and Systematics of the Awl‐Headed Snakes (Colubridae: Lytorhynchus) in the Saharo‐Sindian Region

Zoologica Scripta, EarlyView.
ABSTRACT The psammophilous colubrid genus Lytorhynchus is widely distributed in the deserts of the Saharo‐Sindian region and adjacent areas. The taxonomy of the genus and the number of recognised species have remained unstable since the last taxonomic revision in 1970, with differing views on the taxonomic status of L. gaddi and L. kennedyi.
Lukáš Pola, Daniel Jablonski, Rafaqat Masroor, Bassam Abu Afifeh, Roberta Graboski, Mohammad Abu Baker, Zuhair S. Amr, Ahmed Mohajja AlShammari, Avrajjal Ghosh, Salvador Carranza, Jiří Šmíd   +10 more
wiley   +1 more source

Maternal obesity during lactation as a hypertensive cardiovascular risk factor in the offspring

Experimental Physiology, EarlyView.
Abstract Maternal obesity is a major public health concern, with growing evidence supporting its role in the developmental programming of cardiometabolic disease. Although prenatal mechanisms have been investigated extensively, the contribution of lactation as a postnatal window of cardiovascular (CV) programming remains insufficiently understood ...
Gabriela Arenas, Cristián A. Amador, Susana Contreras‐Duarte   +2 more
wiley   +1 more source

Intramuscular pathways of maladaptation in overtraining syndrome

The Journal of Physiology, EarlyView.
Abstract figure legend The transition from adaptive overreaching to maladaptive overtraining and mechanisms through which excessive training load can lead to performance decline. Four interconnected pathophysiological domains are highlighted: neural fatigue, involving both central and peripheral components such as altered sensory feedback and reflex ...
Emily Shorter, Oscar Horwath, Sabrina Tzivia Barsky, Ferdinand von Walden, Johanna T. Lanner   +4 more
wiley   +1 more source

Human placental exposure to pollutant nanoparticles: uptake, translocation and functional impact

The Journal of Physiology, EarlyView.
Abstract figure legend Prenatal exposure to pollutant nanoparticles has been increasingly investigated due to concerns about their potential effects on placental function and pregnancy outcomes. Maternal inhalation of pollutant nanoparticles can result in a pro‐inflammatory response; particles can also translocate across the alveolus epithelial barrier
Katherine L. Bethell, Andrew C. Povey, Edward D. Johnstone, Peter T. Ruane   +3 more
wiley   +1 more source

The preparation of prolactin [PDF]

, 1935
A procedure for extraction and proximate purification of prolactin is fully described. The tissue is first extracted with 60 to 70 per cent aqueous ethanol at pH 9 to 10, and this followed by complete precipitation of the active principles at a higher ...
Bates, Robert Wesley, Riddle, Oscar
core  

Maternal nutrition as a key determinant of placental and developing blood–brain barrier xenobiotic protective functions

The Journal of Physiology, EarlyView.
Abstract figure legend Suboptimal maternal nutrition alters placental and developing blood–brain barrier (BBB) protective function and is associated with increased fetal brain vulnerability. In the placenta, nutritional adversity may reduce the exchange surface area and promote meta‐inflammation, compromising barrier efficiency in a model‐ and context ...
Kristin L. Connor, Nycolle I. S. Souza, Bruno G. Anjos, Stephen G. Matthews, Enrrico Bloise   +4 more
wiley   +1 more source