Results 51 to 60 of about 4,134 (299)
Radioimmunoassay of rat leptin: sexual dimorphism reversed from humans [PDF]
Clinical Chemistry, 1998 AbstractAdipose tissue secretes leptin, which interacts with receptors in the hypothalamus. In rodent models of obesity, leptin increases metabolism and decreases food intake, which helps to maintain normal body composition. Accurate and precise methods to quantitate circulating leptin concentrations are needed for physiological studies.
Landt, Michael +6 more
openaire +4 more sources
Revista Colombiana de Ciencias Pecuarias, 2008 La demanda de líneas monosexo hembras en la producción de trucha ha incrementado significativamente en los últimos años, por lo que se han desarrollado tecnologías para estandarizar este proceso como el uso de semen de hembras genéticas sometidas a ...
James J Betancur L +4 more
doaj
The Anatomical Record, EarlyView.Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis +4 more
wiley +1 more source
A change in competitive context reverses sexual selection on male size [PDF]
Journal of Evolutionary Biology, 2009 AbstractIn studies of sexual selection, larger size is often argued to increase male fitness, and relatively smaller males are explained by genetic and/or environmental variation. We demonstrate that a size–development life‐history trade‐off could underlie the maintenance of a broad, unimodal distribution of size in male redback spiders (Latrodectus ...
M M, Kasumovic, M C B, Andrade
openaire +2 more sources
Evaluation of the sexual expression in a segregating BC1 papaya population
Crop Breeding and Applied Biotechnology, 2007 In Brazil mainly hermaphrodite plants are exploited for papaya cultivation. Tariations of the elongate (normal) hermaphrodite flowers to carpelloid, pentandric and sterile female forms occur in these plants, influenced by genetic as much as by ...
Messias Gonzaga Pereira +7 more
doaj
Science Progress, 2021 Objectives: Swamp eel is one model species for sexual reversion and an aquaculture fish in China. One local strain with deep yellow and big spots of Monopterus albus has been selected for consecutive selective breeding.
Hai-feng Tian, Qiao-mu Hu, Zhong Li
doaj +1 more source
Arthroscopy, Sports Medicine, and Rehabilitation, EarlyView.Purpose To evaluate the current evidence on patient‐reported outcomes and complications after arthroscopic partial repair and arthroscopic debridement for massive irreparable rotator cuff tears (MIRCTs) in patients aged 65 years or older. Methods A systematic search of MEDLINE, Embase, and Cochrane Library databases was conducted through September 2025
Dave Osinachukwu Duru +4 more
wiley +1 more source
Clock Genes Regulate Ca2+ Signaling and Mitochondrial Bioenergetics to Inhibit Sjögren Disease
Arthritis &Rheumatology, EarlyView.Objective Although Ca2+ signaling and metabolism have been identified as key determinants for the development of Sjögren disease (SjD), the intricate connection between them and salivary gland physiology remains poorly understood. Methods Fluorescence‐based Ca2+ imaging, RNA sequencing, and mitochondrial activity were used to investigate the effects of
Viktor R. Drel +12 more
wiley +1 more source
, 2006 Avaliou-se os efeitos de três doses de 17-a- metiltestosterona (30, 45 e 60 mg) em dietas microencapsuladas em spray dryer, de três tempos de sua administração (20, 30 e 40 dias) e da dieta testemunha (sem hormônio) administrada por 40 dias, sobre o ...
Antonio, Camila
core +2 more sources
Arthritis &Rheumatology, EarlyView.Objective Anti‐homocitrullinated protein/peptide antibodies are specific to rheumatoid arthritis (RA) and predictive of worse prognosis, suggesting a pathogenic role for autoreactivity to homocitrullinated peptides (HomoCitP). However, T cell responses to HomoCitP remain largely unexplored.
Sofya Ulanova +6 more
wiley +1 more source