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At least 649 records · Page 36Linked to original sources
PubMed2004

The impact of cancer therapy on the endocrine system in survivors of childhood brain tumours.

Survival rates are improving following cancer therapy for childhood brain tumours. There is therefore a growing cohort of survivors at risk of late effects of cancer therapy. Endocrine problems are very common in these patients. The recognition and prompt management of these are essential to prevent further morbidity and impairment of quality of life. Cranial radiation can damage hypothalamic-pituitary function, most frequently affecting GH status; however, higher radiation doses may cause more widespread hypothalamic-pituitary damage. Early puberty secondary to cranial irradiation is now being managed with gonadotrophin-releasing hormone analogues to improve final height. Prompt diagnosis and management of GH deficiency may improve final height outcome; continued GH therapy beyond final height aids the achievement of adult body composition (lean body mass and bone mass) and GH therapy in adulthood improves quality of life. Both cranial irradiation alone and with spinal irradiation can result in radiation damage to the thyroid resulting in hypothyroidism and thyroid nodules, a high proportion of which are malignant. Gonadal damage secondary to spinal irradiation and adjuvant chemotherapy may have long-term consequences including infertility.

Adult↗
PubMed1992

[Structural-functional characteristics of the renal endocrine system after alpha-1 adrenoreceptor blockade].

Research Institute of Cardiology, Uzbek Health Ministry Structural and functional peculiarities of the renal juxtaglomerular and interstitial cells were studied after alpha 1-adreno-blockers were used. The endocrine cells were studied after a single and prolonged introduction of the agents. Administration of a single dose of the drugs led to hypergranulation in juxtaglomerular cells thus decreasing their functional activity and release of the granules from the cells. The interstitial cells function intensified. Prolonged administration of alpha 1-adrenoblockers caused a degranulation process in the juxtaglomerular cells and a decrease in their protein-synthetizing structures, namely, renin synthesis, and elevation of synthetic process in the interstitial cells.

APUD Cells↗
PubMed1992

The role of V-ATPase in neuronal and endocrine systems.

Synaptic vesicles have important roles in the neural transmission at nerve terminals: the storage and the controlled exocytosis of neurotransmitters. At least two different factors are responsible for the concentration process: the vacuolar-type H(+)-ATPase (V-ATPase), establishing an electrochemical gradient of protons, and specific transport systems for transmitters. We will discuss our recent progress on the energy-transducing systems in synaptic vesicles: (1) structural aspects of V-ATPase; (2) energy coupling of transport of transmitters; (3) reconstitution of transporters; (4) effects of neurotoxins and neuron blocking agents; (5) function of synaptic-vesicle-like microvesicles from endocrine tissues.

Adenosine Triphosphatases↗