hyperinsulinism/hypoxia

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Sympathoadrenal responses during hypoglycemia, hyperinsulinemia, and hypoxemia in the ovine fetus.

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Interrelations of sympathoadrenal function and changes in glucose and insulin homeostasis were studied in chronically cannulated late gestation fetal sheep. Catecholamine secretory rates (based on direct adrenal sampling) and plasma concentrations were determined in the fetus during 2 h of

The beneficial effect of effective control of anemia on hyperinsulinemia and hypoxemia in a hemodialysis patient with corrected transposition of the great arteries.

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We report the beneficial effect of control of anemia on hyperinsulinemia and hypoxemia in a hemodialysis patient with corrected transposition of the great arteries. The patient's hemoglobin (Hb) level of 10.3 g/dl on admission represents good control for hemodialysis (HD) patients, but it was too

Arterial hypoxemia and hyperinsulinemia in the chronically hyperglycemic fetal lamb.

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Sustained fetal hyperglycemia was produced in eight chronically catheterized fetal lambs (seven twins, and singleton) by means of direct fetal glucose infusion. In twin preparations, only one twin was infused, the noninfused twin serving as a simultaneous in utero control. Glucose infusions lasted

Hyperinsulinemia may boost both hematocrit and iron absorption by up-regulating activity of hypoxia-inducible factor-1alpha.

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There is growing evidence that increases in both hematocrit and body iron stores are components of the insulin resistance syndrome. The ability of insulin and of IGF-I - whose effective activity is increased in the context of insulin resistance - to boost activity of the transcription factor

Activation of hypoxia-inducible factor-1α by prolonged in vivo hyperinsulinemia treatment potentiates cancerous progression in estrogen receptor-positive breast cancer cells.

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Despite numerous epidemiological data linking type 2 diabetes mellitus (T2DM) and breast cancer (BCa), there is limited experimental evidence of this association. The clinically relevant question is at what stage diabetes may exert its tumor-promoting activity. Moreover, identification of major

Case studies in cerebral anoxia. I. Cerebral changes incident to hyperinsulinism (hypoglycemia).

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The effect of prolonged intrauterine hyperinsulinemia on iron utilization in fetal sheep.

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Newborn infants of poorly controlled insulin-dependent diabetic mothers demonstrate a redistribution of iron from serum and tissue stores into red blood cells. These changes may be due to increases in iron utilization during augmented Hb synthesis, which compensates for chronic intrauterine

[Neonatal hypoglycemia caused by hyperinsulinism and subsequent epilepsy].

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A historical cohort study was undertaken to determine the risk of epilepsy in a population of 18 newborns with neonatal hypoglycemia due to insulin excess. Follow-up was 3 years 8 months (range 7 years-1 year 3 months). Insulin excess was associated with maternal diabetes in 13 infants, with an

Fetal Erythroblastosis May Be an Indicator of Neonatal Transient Hyperinsulinism.

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BACKGROUND Small for gestational age and birth asphyxia are associated with neonatal transient hyperinsulinism (THI). Some newborns with THI showed marked erythroblastosis on admission to our neonatal intensive care unit. OBJECTIVE This study was designed to test our hypothesis that fetal

Effects of age on ACTH, corticosterone, glucose, insulin, and mRNA levels during intermittent hypoxia in the neonatal rat.

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Apnea, the temporary cessation of respiratory airflow, is a common cause of intermittent hypoxia (IH) in premature infants. We hypothesized that IH elicits a stress response and alters glucose homeostasis in the neonatal rat. Rat pups were studied on postnatal day (PD) 2, 8, 10, 12, and 14. Pups

CREB binding to the hypoxia-inducible factor-1 responsive elements in the plasminogen activator inhibitor-1 promoter mediates the glucagon effect.

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Plasminogen activator inhibitor-1 (PAI-1) controls the regulation of the fibrinolytic system in blood by inhibiting both urokinase-type and tissue-type plasminogen activators. Enhanced levels of PAI-1 are related to pathological conditions associated with hypoxia or hyperinsulinemia. In this study,

Severe transient neonatal hyperinsulinism associated with hyperlactataemia in non-asphyxiated infants.

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Transient hyperinsulinism (HI) occurs in infants born to diabetic mothers, in infants experiencing perinatal asphyxia and in infants with intrauterine growth retardation. The precise mechanism of transient HI in these different aetiologies is not fully understood. Lactic acidosis is commonly seen in

Circulatory and metabolic effects of hypoxia in the hyperinsulinemic ovine fetus.

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Fetuses of women whose diabetes is poorly controlled often exhibit hypoxemia and elevated catecholamine concentrations at birth. In the ovine fetus, experimental hyperinsulinemia results in hypoxemia, elevated catecholamine concentrations, and hemodynamic changes. Limited oxygen availability

Synergistic effects of hypoxia and insulin are regulated by different transcriptional elements of the human leptin promoter.

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Leptin is a regulator on placenta and conceptus during pregnancy. Hyperinsulinism and hypoxia induce partially overlapping pathophysiological disturbances during pregnancy. As insulin and hypoxia are known inducers of leptin secretion, we asked whether these two stimuli have synergistic effects. By

Increased nucleated erythrocytes in an infant with congenital hyperinsulinism.

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A markedly elevated peripheral nucleated erythrocyte count is reported in a term nonmacrosomic infant with congenital hyperinsulinism born to a nondiabetic mother. With control of hypoglycemia and hyperinsulinism, the count declined to normal. A relationship of hyperinsulinism and erythropoiesis,

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