Results 141 to 150 of about 162,638 (311)

Provocative Tests of the Hypothalamic-Anterior Pituitary-Target Organ Axis [PDF]

open access: yes, 2019
Anterior pituitary peptide hormones which circulate at nanogram or picogram levels are readily measurable under basal conditions by radioligand assay. In addition, functional reserve may be further assessed by the use of specific provocative tests 'aimed'
Pimstone, B.L.
core   +1 more source

Body size, nutritional state and endocrine state are associated with calving probability in a long‐lived marine species

open access: yesJournal of Animal Ecology, EarlyView.
The study develops an approach to model multiple health indicators in long‐lived species. Gray whale calving probability emerges from the combined effect of structural body size and available energy reserves. Activation of the hypothalamic–pituitary–adrenal axis may also affect reproduction.
Enrico Pirotta   +9 more
wiley   +1 more source

Chemometrics-aided Surface-enhanced Raman spectrometric detection and quantification of GH and TE hormones in blood [PDF]

open access: yesarXiv
This work explores the use of Surface-Enhanced Raman Spectroscopy (SERS) combined with artificial neural network (ANN) models to detect and quantify growth hormone (GH) and testosterone (TE) in the blood of Sprague Dawley (SD) rats. SERS spectra were recorded from blood samples of SD rats injected with GH, TE, both hormones, and non-injected controls ...
arxiv  

Early positive tactile stimulation reverses the increase of anxiety and decrease of sociality induced by early chronic mechanical pain in mandarin voles

open access: yesIntegrative Zoology, EarlyView.
This study used a tail‐pinching model during development to simulate mechanical pain experienced by pups in high‐social mandarin voles (Microtus mandarinus). Subsequently, brush‐like positive tactile stimuli were applied to the backs of the mandarin voles.
Yahan SUN   +14 more
wiley   +1 more source

Interactions between BNST PACAP stress system and Estrous Cycling in Non-overiectomized Female Rats [PDF]

open access: yes, 2017
The objective of this investigation is to examine possible interactions between the BNST PACAP stress system and hormone levels during the estrous cycle of naturally cycling female rats.
Brumbaugh, Beniah
core   +1 more source

Can Fecal T3 Metabolite Level Fluctuations in European Roe Deer (Capreolus capreolus) Give Insights on Body Condition and Thermal Stress?

open access: yesIntegrative Zoology, EarlyView.
European roe deer fecal samples were assayed to investigate the potential fluctuations of fecal thyroid hormone metabolites (FTMs) in response to environmental (e.g., the temperature, local densities) and individual (e.g., sex, age, body, and nutritional conditions) variables.
Valeria Pasciu   +6 more
wiley   +1 more source

Body Mass Index, Sleep Quality, Stress Conditions Determine Menstrual Cycles Among Female Adolescents [PDF]

open access: yes, 2019
Menstrual cycles are an important indicator of women's health. Menstrual cycles can be affected by body mass index (BMI), sleep quality, and stress. This study aimed to analyse the relationship between BMI, sleep quality, stress and the menstrual cycle ...
Fitriani, R. J. (Rosmauli)   +2 more
core  

Aging‐Associated Vacuolation of Multi‐Ciliated Cells in the Distal Mouse Oviduct Reflects Unique Cell Identity and Luminal Microenvironment

open access: yesAging Cell, EarlyView.
Multi‐ciliated cells in the infundibulum and ampulla (INF/AMP) epithelium are vacuolated in aging. Unique cellular susceptibility of the INF/AMP epithelial population and aging‐associated decline in ovarian artery circulation, which supports the ovary and INF/AMP, contribute to this region‐specific vacuolation phenotype, as a consequence of a mildly ...
Keerthana Harwalkar   +10 more
wiley   +1 more source

Detecting Glioma, Meningioma, and Pituitary Tumors, and Normal Brain Tissues based on Yolov11 and Yolov8 Deep Learning Models [PDF]

open access: yesarXiv
Accurate and quick diagnosis of normal brain tissue Glioma, Meningioma, and Pituitary Tumors is crucial for optimal treatment planning and improved medical results. Magnetic Resonance Imaging (MRI) is widely used as a non-invasive diagnostic tool for detecting brain abnormalities, including tumors.
arxiv  

Plasma ACTH in bulbus superior venae jugularis and biological halflife of endogenous ACTH [PDF]

open access: yes, 1967
Hacker, R. W.   +3 more
core   +1 more source

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