To what extent does photoperiod affect cattle reproduction? Clinical perspectives of melatonin administration [PDF]
The seasonality of reproduction in most mammals is dictated by photoperiod, temperature and nutrition. Melatonin, mainly synthesized in the pineal gland, is generally accepted as the active mediator of photoperiod responses including reproduction.
De Rensis, F.+3 more
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A middle cerebral artery ischemic stroke occurring in a child with a large prolactinoma. [PDF]
Pituitary adenomas are rare in children, and often present with symptoms of headache, nausea or emesis, visual disturbance, or hormonal hypersecretion.
Amara, Dominic+3 more
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TRH: Pathophysiologic and clinical implications [PDF]
Thyrotropin releasing hormone is thought to be a tonic stimulator of the pituitary TSH secretion regulating the setpoint of the thyrotrophs to the suppressive effect of thyroid hormones. The peptide stimulates the release of normal and elevated prolactin.
A. Enjalbert+82 more
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Sex differences in the pituitary TGFβ1 system: the role of TGFβ1 in prolactinoma development [PDF]
Prolactinomas are the most frequent functioning pituitary adenomas, and sex differences in tumor size, behavior and incidence have been described. These differences have been associated with earlier diagnosis in woman, as well as with serum estradiol ...
Abeledo Machado, Alejandra Inés+6 more
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Discriminating depression, physical and social anhedonia by neurotransmitter related challenge tests [PDF]
The aim of this study was to investigate, if anhedonia, a salient component of depression, shows similar response patterns to neurotransmitter challenge tests as depression, and if the two questionnaire based components Physical (PA) and Social (SA ...
Hennig, Juergen, Netter, Petra
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Neuroendocrine Regulation of Metabolism [PDF]
Given the current environment in most developed countries, it is a challenge to maintain a good balance between calories consumed and calories burned, although maintenance of metabolic balance is key to good health. Therefore, understanding how metabolic
Becu Villalobos, D.+5 more
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Utility of cannulated prolactin to exclude stress hyperprolactinemia in patients with persistent mild hyperprolactinemia [PDF]
Background: Stress-induced hyperprolactinemia can be difficult to differentiate from true hyperprolactinema and may result in patients having unnecessary investigations and imaging.
Almazrouei, R+3 more
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Effects of social stimuli on sleep in mice: non-rapid-eye-movement (NREM) sleep is promoted by aggressive interaction but not by sexual interaction [PDF]
Sleep is generally considered to be a process of recovery from prior wakefulness. In addition to being affected by the duration of the waking period, sleep architecture and sleep EEG also depend on the quality of wakefulness.
Meerlo, Peter,, Turek, Fred W.,
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Steer stress response as affected by genotype and transportation [PDF]
Bovine cytochrome P450 3A28 is responsible for metabolizing ergot alkaloids that cattle ingest when feeding on endophyte-infested tall fescue grass. The objective of this research was to determine associations among genotype, transportation, and stress ...
Coffey, Ken+5 more
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Insulin-like growth factor binding proteins initiate cell death and extracellular matrix remodeling in the mammary gland [PDF]
We have demonstrated that insulin-like growth factor binding protein-5 (IGFBP-5) production by mammary epithelial cells increases dramatically during forced involution of the mammary gland in rats, mice and pigs.
Accorsi+60 more
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