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Molecular Pharmacology Of Somatostatin Receptors, Fredric C. Mazza
Molecular Pharmacology Of Somatostatin Receptors, Fredric C. Mazza
Seton Hall University Dissertations and Theses (ETDs)
Somatostatin (somatotropin release inhibitory factor, SRIF), inhibits animal cell secretion and proliferation. SRIF is transcribed from a single gene as a 1 t 6 amino acid that in precursor is cleaved a cell specific manner into two distinct peptides, SRIF-14 and SRIF-28. Each binds with high affinity to all five known SRIF-receptor subtypes (sst, - ssts) and several of these receptor subtypes are endogenously expressed in the AtT-20 cell, a murine pituitary corticotroph. SRIF receptors belong to the G protein-coupled family of integral membrane receptors. Within the SRIF receptor family, it has been shown that the sst, receptor subtype exists …
Lipopolysaccharide Induced Septicemia In Chronic Morphine Treated Rats, Frank Ocasio
Lipopolysaccharide Induced Septicemia In Chronic Morphine Treated Rats, Frank Ocasio
Seton Hall University Dissertations and Theses (ETDs)
Opiate-addicts have been known to show increased susceptibility to bacterial infection. Lipopolysaccharide (LPS), which is a cell wall component in gram-negative bacterial, is a potent stimulator of inflammation. We investigated how treatment with morphine alters LPS-induced inflammatory responses in the rat. Chronic morphine exposure alone elevated serum endotoxin levels. Animals treated with morphine and LPS (250 µglkg) developed hypothermia, decreased mean arterial pressure (MAP), increased plasma thrombin anti-thrombin III (TAT) complex, and approximately 67% exhibited progressive intramicrovascular coagulation. Morphine also enhanced LPS induced leukocyte endothelial adhesion (LEA), suppressed leukocyte flux and corticosterone production, and elevated interleukin- I�, tumor necrotic factor-a, …
Studies On The Regulation Of Mu Opioid Receptor Mrna Expression In Shsy-5y Human Neuroblastoma Cells, Xin Yu
Studies On The Regulation Of Mu Opioid Receptor Mrna Expression In Shsy-5y Human Neuroblastoma Cells, Xin Yu
Seton Hall University Dissertations and Theses (ETDs)
Prolonged exposure to morphine down-regulates mu opioid receptors (MOR) on both undifferentiated and differentiated (retinoic acid or phorbol ester treated) SHSY-5Y cells. However, morphine pretreatment does not alter MOR receptor affinity for morphine. To investigate the molecular basis for MOR regulation after exposure to its selective agonists, we have developed a quantitative competitive reverse transcriptase-polymerase chain reaction (QC-RT PCR) to quantify the expression of MOR in SHSY-SY cells. Differentiation of SHSY-5Y cells with retinoic acid or phorbol ester up regulated MOR mRNA expression by 30 % and 78%, respectively. A 24 hours treatment with morphine (10 µM) down regulated MOR …
Dara, The Antirestriction Protein Of Bacteriophage P1, Priti R. Vemulapalli
Dara, The Antirestriction Protein Of Bacteriophage P1, Priti R. Vemulapalli
Seton Hall University Dissertations and Theses (ETDs)
No abstract provided.
Regulation Of Proto-Oncogenes Expression In Developmental Epilepsy, Mahnoush Shafiei
Regulation Of Proto-Oncogenes Expression In Developmental Epilepsy, Mahnoush Shafiei
Seton Hall University Dissertations and Theses (ETDs)
Seizures cause selective neuronal cell loss in vulnerable regions such as the hippocampus, cortex, thalamus or substantia nigra (SN) in human or experimental animals. While the HF can propagate seizures, the SN pars reticulata (SNR) regulates the spread ol seizures in an age-dependent fashion, and the pars compacta (SNC) affects extrapyramidal motor control. In mature animals, both structures are wlnerable to seizure-induced damage. In prepubescent rats, seizure susceptibility is reduced and CA 1 region rs primarily affected. The proto-oncogenes, Bcl-2 and Bax, encode specific proteins that inhibit and promote programmed cell death, respectively. In order to determine whether proto-oncogenes are …