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Articles 1 - 8 of 8
Full-Text Articles in Medicine and Health Sciences
Characterization Of Lipid-Anchored Inhibitor Rulers As A Measure Of Enzyme Topography In Coagulation Enzyme Factor Xa, Robin C. Conley
Characterization Of Lipid-Anchored Inhibitor Rulers As A Measure Of Enzyme Topography In Coagulation Enzyme Factor Xa, Robin C. Conley
PCOM Biomedical Studies Student Scholarship
The blood coagulation cascade is activated under various circumstances such as an injury. This system involves a tightly regulated series of events. The enzymes involved assemble with their respective cofactors on lipid membranes to reach their full procoagulant complex potential. The coagulation cascade is divided into intrinsic and extrinsic portions, both of which converge into a common pathway with the activation of factor X (FXa). FXa is a very important part of the blood coagulation cascade because its activation is primarily responsible for thrombin generation. Activation of FXa alone is, however, insufficient to produce a fully …
Cyclic Nucleotide-Dependent Phosphorylation Regulates Bk-Ca Channel Activity In Human Coronary Artery Smooth Muscle Cells, Raeonda Williams
Cyclic Nucleotide-Dependent Phosphorylation Regulates Bk-Ca Channel Activity In Human Coronary Artery Smooth Muscle Cells, Raeonda Williams
PCOM Biomedical Studies Student Scholarship
Cardiovascular diseases (CVD) can induce dysfunction in organ systems by attenuating normal blood flow. Gonadal steroids are vasoactive hormones, but their role in contributing to cardiovascular function remains controversial. We have demonstrated that gonadal steroids can relax coronary arteries by opening the large-conductance, calcium- and voltage-activated potassium (BKca) channel in smooth muscle cells by increasing cyclic nucleotide levels; however, the signaling pathways involved remain to be elucidated. The purpose of this study was to identify how phosphorylation (via cAMP- and cGMP-dependent protein kinases) I dephosphorylation (via phosphoprotein phosphatase 2A, PP2A) regulates BKca channel activity in human coronary artery smooth muscle …
The Effects Of Dihydrobiopterin And Tetrahydrobiopterin On Hydrogen Peroxide And Nitric Oxide Release During Extracorporeal Shockwave Lithotripsy (Eswl), Brittany Deiling
The Effects Of Dihydrobiopterin And Tetrahydrobiopterin On Hydrogen Peroxide And Nitric Oxide Release During Extracorporeal Shockwave Lithotripsy (Eswl), Brittany Deiling
PCOM Biomedical Studies Student Scholarship
ESWL is an effective, non-invasive therapy utilized to fragment stones in the kidney and subsequently be cleared in the urinary tract. Although lithotripsy provides a safer alternative to invasive treatments for removing stones, ESWL may cause vasoconstriction after ESWL treatment, reducing renal blood flow, which can cause kidney damage leading to acute to chronic hypertension clinically. This may be due to kidney vascular endothelial dysfunction, which is characterized as increased oxidative stress and decreased endothelial nitric oxide synthase (eNOS)-derived nitric oxide (NO) bioavailability. We hypothesized that ESWL would decrease NO and increase hydrogen peroxide (H2O2) in …
Osteopathic Manipulative Medicine (Omm) And Reduction Of Nsaid Use In Low Back Pain: A Pilot Study, Kristopher Kelly
Osteopathic Manipulative Medicine (Omm) And Reduction Of Nsaid Use In Low Back Pain: A Pilot Study, Kristopher Kelly
PCOM Biomedical Studies Student Scholarship
This randomized controlled pilot study is to determine if a combination of muscle energy and soft tissue techniques can reduce the amount of daily NSAID use in patients suffering from chronic non-specific low back pain (CNSLBP). Osteopathic manipulative treatment has been shown to be useful in treating low back pain. However, its role in reducing daily NSAID use in CNSLBP patients is unclear. This study was conducted at PCOM from January 2014 to April 2014. By design, patients were to be randomized into either a treatment group consisting of OMT or a control group consisting of a sham OMT. Of …
Chemopreventive Effects Of Pterostilbene In Metastatic Prostate Cancer Cells, Phillip A. Zook
Chemopreventive Effects Of Pterostilbene In Metastatic Prostate Cancer Cells, Phillip A. Zook
PCOM Biomedical Studies Student Scholarship
Recent studies find that pterostilbene (PTS) exhibits more favorable drug properties and similar chemopreventive effects to its structural analogue resveratrol (RSV). However, few studies describe the activity of PTS in prostate cancer (PCa). Here, we conducted cell count experiments to assess the effects of PTS on metastatic PCa cell viability and to compare the potency of PTS to RSV in this respect. We also performed experiments to assess the effects of PTS on the androgen receptor (AR) and AR-mediated events. We used qPCR to measure the mRNA levels of the androgenresponsive gene (ARG), prostate-specific antigen (PSA), and Western blots to …
Effect Of Tumor Necrosis Factorα On Expression Of Heme-Oxgenase1 In Human Gingival Fibroblasts, Jay Patel
Effect Of Tumor Necrosis Factorα On Expression Of Heme-Oxgenase1 In Human Gingival Fibroblasts, Jay Patel
PCOM Biomedical Studies Student Scholarship
Periodontitis is a chronic inflammatory disease that is characterized by activation of gingival fibroblasts to produce matrix metalloproteinases and other inflammatory mediators that contribute to destruction of tissues surrounding the teeth. In the United States, 22% of adults have a mild form of periodontal disease and 13% suffer from a severe form of the disease. In addition to tooth loss, periodontitis is associated with increased risk of several conditions, including diabetes, osteoporosis, rheumatoid arthritis and cardiovascular disease. Heme oxygenase-1 (HO-1) is activated by a wide variety of stressful stimuli and levels are increased in inflamed tissues. HO-1 degrades free heme, …
Effect Of Heme Oxygenase-1 On Matrix Metalloproteinase-3 Expression In Human Fibroblasts, Theresa A. Stangl
Effect Of Heme Oxygenase-1 On Matrix Metalloproteinase-3 Expression In Human Fibroblasts, Theresa A. Stangl
PCOM Biomedical Studies Student Scholarship
Heme oxygenase-1(HO-1) is an enzyme that plays a very important role in the resolution of inflammation. HO-1-based therapies are effective in a number of disease conditions. However, HO-1 also increases tumor growth, angiogenesis, metastasis and chemoresistance. Matrix metalloproteinase-3 (MMP-3) is an enzyme involved in physiological and pathophysiological tissue remodeling. Unbalanced expression of MMPs is a key feature of connective tissue destruction in chronic inflammatory conditions. Previously shown in this laboratory, the HO-1 inducer, hemin, increased MMP-3 mRNA expression in some HGF cultures. To assess whether HO-1 and/or its products regulate expression of MMP-3 in human fibroblasts, the effect of HO-1 …
An Analysis Of Abnormal Electrocardiograms In First And Second Year Medical School Students, Molly Anne Kalish
An Analysis Of Abnormal Electrocardiograms In First And Second Year Medical School Students, Molly Anne Kalish
PCOM Biomedical Studies Student Scholarship
The high stress level placed upon medical school students, particularly during their first and second didactic years, may have a negative effect on their health. Although surveys and subjective questionnaires have been used to evaluate the effects medical school has upon a student’s cardiovascular health, there has been little clinical data obtained to confirm this notion. The aim of this longitudinal study was to demonstrate whether any abnormal cardiovascular parameters, specifically QTc wave interval, cardiac axis vector and blood pressure abnormalities, could be documented to occur in two different classes of medical students during their first two years. Such information …