Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:P01350 (gastrin)
 9,683 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In 40 patients (pts) with essential hypertension (EH) the plasma levels of insulin, glucagon, gastrin and prolactin during 2 week therapy with nifedipine were evaluated. In pts with EH there were higher levels of hormones than in control subjects. During nifedipine therapy there was no elevation of the plasma hormone levels although the blood pressure was lowered. This study shows that there are other than hypertension factors in the pathogenesis of elevated hormone levels in EH.
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PMID:[Essential hypertension. Treatment with nifedipine and levels of insulin, glucagon, gastrin and prolactin]. 194 46

The purpose of the study was to evaluate the effect of 6 weeks treatment with hydrochlorothiazide or propranolol on gastric acid and gastrin secretion in essential hypertension. The study was carried out in 10 patients receiving propranolol and 10 treated with hydrochlorothiazide. Acid and gastrin secretion were determined during histamine stimulation tests (Kay's test). Before the treatment the patients with essential hypertension were not significantly different from healthy controls with respect to acid secretion and gastrinemia profile after histamine stimulus. In both groups of patients no significant effect was observed of hypotensive treatment on basal acid output, but a significant inhibitory effect on gastrin secretion was noted. This effect was significantly greater in patients treated with propranolol than in the hydrochlorothiazide group. Moreover, in propranolol-treated patients a significant fall of histamine-induced acid secretion was found.
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PMID:[Effect of adrenergic beta receptor blockaders and thiazide diuretics on gastric acid and gastrin secretion in patients with essential hypertension]. 221 36

A group of 20 patients with primary hypertension (NT) were studied for the influence of six-week propranolol therapy on the secretion of immunoreactive insulin (IR-I), gastrin glucagon (IR-G) and pancreatic polypeptide (IR-PP) induced by a high-fat test meal. The results of the examination before the therapy were compared with examination of 10 healthy persons. Before the therapy, the patients with NT revealed a decreased reactivity of IR-PP to the food stimulus. After propranolol therapy, the authors found a significant change of glucagonemia profile and pancreatic polypeptide concentration induced by a test meal. The results of the examinations made suggest a direct or indirect participation of beta-adrenergic endings in the regulation of glucagon and pancreatic polypeptide secretion in patients with primary hypertension.
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PMID:[Effect of propranolol therapy on the secretion of insulin, glucagon, gastrin and pancreatic polypeptide in patients with essential hypertension]. 269 15

The influences of renal function and mass on the catabolism of serum gastrin were studied in 27 patients with hypertension caused by unilateral parenchymal renal disease (77.8%), renal artery stenosis (11.1%) and essential hypertension (11.1%). Blood for gastrin analysis was taken by catheterization from the aorta, inferior vena cava, renal veins and cubital vein. Separate renal functions were measured using radioisotope methods and the renal mass was also calculated. Significant differences (p < 0.001) in serum gastrin concentration between the aorta (29.5 +/- 6.7 pmol/l), inferior vena cava (23.4 +/- 5.8 pmol/l) and cubital vein (19.4 +/- 4.5 pmol/l) were found. Extrarenal gastrin extraction amounted to 12.5% and was considerably lower than renal gastrin extraction (20.5%). There was a significant positive correlation between renal gastrin extraction and renal blood flow or renal functional mass. Kidneys have an important, but not exclusive, role in the catabolism of endogenous gastrin in humans. In the catabolism of some, or at least some molecular forms of, gastrin, the capillary systems of extrarenal tissues have an important role.
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PMID:Influence of renal functional mass on the catabolism of endogenous gastrin in humans. 769 40

Vasoactive intestinal peptide (VIP) has been localized within the suprachiasmatic nucleus of the hypothalamus (SCN) and appears to play an important role in the entrainment of circadian rhythms with the light-dark (LD) cycle. The spontaneously hypertensive rat (SHR), an inbred strain used extensively in research on primary hypertension, has significantly more VIP mRNA in its brain than normotensive Wistar-Kyoto control (WKY) rats. Because VIP levels are abnormally high in SHR rats the present study examined whether the mechanisms controlling circadian rhythms are also altered in SHR rats. When entrained to a 24 h LD cycle, SHR rats began their wheel-running rhythm approximately 1.5 h earlier than WKY controls. SHR rats re-entrained to a phase delay in the LD cycle more slowly than did WKY rats, but tended to re-entrain to a phase advance more rapidly. The free-running period of SHR rats in both constant light and constant dark was significantly shorter than that of WKY rats. In SHR rats, phase delays produced by 1-h pulses of light were less than one-half the magnitude of the delays seen in WKY rats; however, the phase advances were nearly twice that of WKY rats. Using in situ hybridization, the SCN levels of mRNA encoding VIP were found to be significantly greater in SHR rats, but the mRNA levels of another peptide important for entrainment, gastrin releasing peptide, did not differ between SHR and WKY rats. These data indicate that the mechanisms controlling circadian rhythms in SHR rats differ significantly from those controlling rhythms in WKY rats and that VIP mRNA is significantly elevated within the SCN of SHR rats. The role of VIP in the entrainment of circadian rhythms is discussed.
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PMID:The control of circadian rhythms and the levels of vasoactive intestinal peptide mRNA in the suprachiasmatic nucleus are altered in spontaneously hypertensive rats. 820 75

Secretion of insulin, glucagon, gastrin and pancreatic polypeptide (PP) at basal and test meal stimulation conditions were investigated in 17 patients with essential hypertension (EH) before and after 12 months of treatment with prazosin and in 10 healthy subjects. Before prazosin therapy, patients with EH differ from healthy subject higher insulin and gastrin but lower PP secretion after test meal stimulation. 12 month therapy with prazosin enhanced insulin and suppressed gastrin secretion stimulated by test meal in comparison to the pretreatment values. Prazosin therapy did not influence significantly glucagon and PP secretion. Our results suggest, that long term prazosin treatment markedly influenced insulin and gastrin secretion in patients with EH.
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PMID:[Effect of long term prazosin treatment on secretion of insulin, glucagon, gastrin, and pancreatic polypeptide in patients with essential hypertension]. 847 41

Essential hypertension is a complex disease with both genetic and environmental determinants. The effect of spontaneous hypertension on the distribution and occurrence of somatostatin-, gastrin- and serotonin-immunoreactive cells in the fundus and pylorus of the rat stomach was examined by immunohistochemistry. The animals were killed by decapitation at 4 and 16 weeks of age (5 control rats and 5 hypertensive rats). Endocrine cells generally increase in number in hypertensive rats as compared to control rats. However, the detailed responses of endocrine cells to hypertension depend on the cell type, region of gastric mucosa and age of animals. The present results suggest that hypertension has an influence on the intrinsic regulatory system by endocrine cells control in the rat stomach.
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PMID:An immunohistochemical study of endocrine cells in the stomach of hypertensive rats. 1792 43