hypoglycemia/protease

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Evidence for activation of caspase-3-like protease in excitotoxin- and hypoxia/hypoglycemia-injured neurons.

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Caspase activation has been shown to be a critical step in several models of neuronal apoptosis such as staurosporine treatment of human neuroblastoma SH-SY5Y cells and potassium deprivation of rat cerebellar granule neurons. One common event is the appearance of caspase-mediated 120-kDa

Gene expression and serum levels of insulin-like growth factors (IGFs) and IGF-binding proteins in a case of non-islet cell tumour hypoglycaemia.

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We describe a case of non-islet cell tumour hypoglycaemia (NICTH) associated with a renal cell carcinoma. Serum insulin-like growth factors (IGFs) (including IGF-II E peptide), IGF-binding proteins (IGFBPs), insulin and C-peptide were measured before and after surgical removal of the tumour. IGFBPs

Altered Nrf2 signaling mediates hypoglycemia-induced blood-brain barrier endothelial dysfunction in vitro.

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Hypoglycemia impairs blood-brain barrier (BBB) endothelial function; a major hallmark in the pathogenesis of various CNS disorders. Previously, we have demonstrated that prolonged hypoglycemic exposure down-regulated BBB endothelial NF-E2 related factor-2 (Nrf2) expression; a redox-sensitive

Cyclosporin A prevents calpain activation despite increased intracellular calcium concentrations, as well as translocation of apoptosis-inducing factor, cytochrome c and caspase-3 activation in neurons exposed to transient hypoglycemia.

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Blockade of mitochondrial permeability transition protects against hypoglycemic brain damage. To study the mechanisms downstream from mitochondria that may cause neuronal death, we investigated the effects of cyclosporin A on subcellular localization of apoptosis-inducing factor and cytochrome c,

Defective expression of prohormone convertase 4 and enhanced expression of insulin-like growth factor II by pleural solitary fibrous tumor causing hypoglycemia.

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A 75-year-old man was admitted to our hospital because of unconsciousness. His plasma glucose was very low, but his serum levels of insulin and IGF-I were also low. He was found to have a giant solitary pleural tumor, which was completely resected, after which his hypoglycemia ameliorated

The effect of growth hormone treatment on the insulin-like growth factor axis in a child with nonislet cell tumor hypoglycemia.

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We have previously described a case of tumor-associated hypoglycemia secondary to the production of high molecular weight insulin-line growth factor (IGF)-II in a child with congenital neuroblastoma. The child's hypoglycemia resolved with GH therapy and has continued to be well controlled for 1 yr.

Hypoglycemia enhances the expression of mRNA encoding beta-amyloid precursor protein in rat primary cortical astroglial cells.

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Deposition of beta-amyloid (A beta) is a characteristic feature of the pathology of Alzheimer's disease (AD). Since glucose metabolism and the consequential ATP production are depressed in the temporal and parietal regions of the cortex in patients with AD, we designed the present study to

Oral delivery system of insulin microspheres: effect on relative hypoglycemia of diabetic albino rats.

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The aim of the present work was to investigate the effectiveness of a dosage form approach for monitoring both the inactivation and the absorption process by targeting insulin delivery to the upper region of small intestine. The dosage form is based on the incorporation of insulin with protease

Lack of an effect of protease inhibitor use on glucose tolerance during pregnancy.

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OBJECTIVE We hypothesized that HIV-positive women on protease inhibitors (PIs) would be more likely to have an elevated glucola test result than those not on PIs. METHODS We reviewed our database of all HIV-positive pregnant women seen at our hospital. Serum glucose was measured 1 hour following a

[Parameters of energy and nitrogen metabolism in rats under insulin-induced hypoglycemia].

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Repeated severe insulin-induced hypoglycemia in rats has led to an increase in aminotransferase, glutaminase, and glutamate dehydrogenase activities in the liver; protease activities in tissues; and in blood serum levels of free fatty acids, urea, and uric acid. These changes are indicative of

Column chromatographic characterization of complex formation of pro-IGF-II isoforms with acid labile subunit and IGF-binding proteins associated with non-islet cell tumour induced hypoglycaemia.

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OBJECTIVE Non-islet cell tumour induced hypoglycaemia (NICTH) is a paraneoplastic phenomenon that is associated with the formation of several isoforms of pro-insulin like growth factor 2 (pro-IGF-II), or so called "big" IGF-II. Disturbance of ternary complex formation by big IGF-II is assumed to be

Improvement in extracellular protease production by the marine antarctic yeast Rhodotorula mucilaginosa L7.

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Microorganisms from extreme and restrictive eco systems, such as the Antarctic continent, are of great interest due to their ability to synthesize products of commercial value. Among these, enzymes from psychrotolerant and psychrophilic microorganisms offer potential economical benefits due to their

Dependence of Clostridium botulinum gas and protease production on culture conditions.

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Reports that Clostridium botulinum toxin can sometimes be detected in the absence of indicators of overt spoilage led to a systematic study of this phenomenon in a model system. Media with various combinations of pH (5.0 to 7.0) and glucose (0.0 to 1.0%) were inoculated with vegetative cells of C.

A novel mutant from apoptosis-resistant colon cancer HT-29 cells showing hyper-apoptotic response to hypoxia, low glucose and cisplatin.

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Solid tumors usually have regions of hypoxia and glucose deprivation. Human colon carcinoma HT-29 cells show an apoptosis-resistant phenotype in response to microenvironmental stresses. In this study, we isolated a novel mutant of HT-29, designated as HA511, that showed a high apoptotic response to

Polyalthia Clerodane Diterpene Potentiates Hypoglycemia via Inhibition of Dipeptidyl Peptidase 4.

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Serine protease dipeptidyl peptidase 4 (DPP-4) is involved in self/non-self-recognition and insulin sensitivity. DPP-4 inhibitors are conventional choices for diabetic treatment; however, side effects such as headache, bronchus infection, and nasopharyngitis might affect the daily lives of diabetic

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