Pituicytes are glial-like cells that engulf axon terminals of vasopressin neurons when the hormone is not required, but retract when vasopressin secretion is increased, such as during dehydration [24]. Tanycytes, activated by growth factors and adhesion molecules, operate similarly on axon ...
The MPOm sends its strongest projections to parts of the hypothalamus involved in the regulation of hormone secretion from the anterior pituitary such as the AVPV, arcuate nucleus and paraventricular nucleus. The cell sparse lateral part of the MPO has the most diffuse projections with a projection...
an adrenal tumor could be a culprit for having an excess of adrenaline. Another cause of overproduction of adrenaline is untreated obstructive sleep apnea, because as people struggle to breathe in their sleep, the body perceives lack of oxygen as danger, which then creates a physical stress resp...
integration between the central nervous and endocrine systems. Different nuclei within the hypothalamus play roles in hormone regulation andsecretionSecretionCoagulation Studies, autonomic regulation,thermoregulationThermoregulationBody temperature can be divided into external temperature, which involves the skin, ...
Hypothalamic polypeptide that inhibits the secretion of immunoreactive pituitary growth hormone. Science. 1973;179:77–9. Article CAS PubMed Google Scholar Broglio F, Koetsveld Pv P, Benso A, Gottero C, Prodam F, Papotti M, Muccioli G, Gauna C, Hofland L, Deghenghi R, Arvat E, ...
Surprisingly, the circadian rhythm of corticosterone secretion (Supplementary Fig. 9A), as well as stress-induced corticosterone level (Fig. 6D), were unaffected by the Crh-specific Fkbp5 overexpression. Further, basal and 15 min post-stress ACTH level and DEX/CRH corticosterone level remained ...
(GH, PRL, ACTH, FSH, LH, TSH, and α-subunit), special stains investigate the diseased AL cell, such as staining with MIB-1, a cell proliferation marker that recognizes the KI-67 antigen, or demonstration of the protein p53, the product of a tumor suppressor gene, as parameters for ...
Hamartoma of the hypothalamus is an exception to the generalization that tumors of the brain cause precocious puberty by impairment of gonadotropin secretion (although hamartomas on occasion cause hypothalamic damage). A hamartoma is a tumor-like collection of normal-appearing nerve tissue lodged in an...
specifically neuron–glia interactions in the regulation of neurosecretion as well as neuronal excitability. Mechanistically, the morphological plasticity displayed by distal processes of astrocytes, pituicytes and tanycytes modifies the geometry and diffusion properties of the extracellular space. These chan...
(ARC) reach the pituitary gland by the portal system at the median eminence. Important regulators of TRH secretion are listed. Abbreviations: AgRP, Agouti-related peptide/protein; AP, anterior part of the pituitary gland; ARC, arcuate nucleus; CART, cocaine and amphetamine-regulated transcript; ...