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Articles 1 - 10 of 10
Full-Text Articles in Medicine and Health Sciences
Modulation Of Tgf-Beta Signaling By Proinflammatory Cytokines In Articular Chondrocytes., Jorge A. Roman-Blas, David G. Stokes, Sergio A. Jimenez
Modulation Of Tgf-Beta Signaling By Proinflammatory Cytokines In Articular Chondrocytes., Jorge A. Roman-Blas, David G. Stokes, Sergio A. Jimenez
Department of Medicine Faculty Papers
OBJECTIVE: The normal structure and function of articular cartilage are the result of a precisely balanced interaction between anabolic and catabolic processes. The transforming growth factor-beta (TGF-beta) family of growth factors generally exerts an anabolic or repair response; in contrast, proinflammatory cytokines such as interleukin 1 beta (IL-1beta) and tumor necrosis factor-alpha (TNF-alpha) exert a strong catabolic effect. Recent evidence has shown that IL-1beta, and TNF-alpha, and the TGF-beta signaling pathways share an antagonistic relationship. The aim of this study was to determine whether the modulation of the response of articular chondrocytes to TGF-beta by IL-1beta or TNF-alpha signaling pathways …
Human Collagen Krox Up-Regulates Type I Collagen Expression In Normal And Scleroderma Fibroblasts Through Interaction With Sp1 And Sp3 Transcription Factors., Magdalini Kypriotou, Gallic Beauchef, Christos Chadjichristos, Russell Widom, Emmanuelle Renard, Sergio A. Jimenez, Joseph Korn, François-Xavier Maquart, Thierry Oddos, Otto Von Stetten, Jean-Pierre Pujol, Philippe Galéra
Human Collagen Krox Up-Regulates Type I Collagen Expression In Normal And Scleroderma Fibroblasts Through Interaction With Sp1 And Sp3 Transcription Factors., Magdalini Kypriotou, Gallic Beauchef, Christos Chadjichristos, Russell Widom, Emmanuelle Renard, Sergio A. Jimenez, Joseph Korn, François-Xavier Maquart, Thierry Oddos, Otto Von Stetten, Jean-Pierre Pujol, Philippe Galéra
Department of Medicine Faculty Papers
Despite several investigations, the transcriptional mechanisms that regulate the expression of both type I collagen genes (COL1A1 and COL1A2) in either physiological or pathological situations, such as scleroderma, are not completely known. We have investigated the role of hc-Krox transcription factor on type I collagen expression by human dermal fibroblasts. hc-Krox exerted a stimulating effect on type I collagen protein synthesis and enhanced the corresponding mRNA steady-state levels of COL1A1 and COL1A2 in foreskin fibroblasts (FF), adult normal fibroblasts (ANF), and scleroderma fibroblasts (SF). Forced hc-Krox expression was found to up-regulate COL1A1 transcription through a -112/-61-bp sequence in FF, ANF, …
Time For An Active Antiviral Therapy For Hepatitis B: An Update On The Management Of Hepatitis B Virus Infection., Hee Bok Chae, Hie-Won Hann
Time For An Active Antiviral Therapy For Hepatitis B: An Update On The Management Of Hepatitis B Virus Infection., Hee Bok Chae, Hie-Won Hann
Department of Medicine Faculty Papers
Significant advances in the management of chronic hepatitis B (CHB) have been made over the past decade. During this period we have witnessed improvements in survival as well as reduction of disease progression in CHB patients due to the introduction of effective antiviral therapy. The need for effective antiviral therapy is underscored by the results of the REVEAL-HBV study in which 3653 hepatitis B virus (HBV) carriers were followed over 12 year period. This study demonstrated that a persistently elevated serum HBV DNA level was the most important risk factor for the development of hepatocellular carcinoma (HCC). The ultimate goal …
American Academy Of Allergy, Asthma & Immunology Work Group Report: Allergy Diagnosis In Clinical Practice, Dana V. Wallace, Sami L. Bahna, Stan Goldstein, Robert G. Hamilton, John R. Cohn
American Academy Of Allergy, Asthma & Immunology Work Group Report: Allergy Diagnosis In Clinical Practice, Dana V. Wallace, Sami L. Bahna, Stan Goldstein, Robert G. Hamilton, John R. Cohn
Department of Medicine Faculty Papers
No abstract provided.
Adiponectin Deficiency Increases Leukocyte-Endothelium Interactions Via Upregulation Of Endothelial Cell Adhesion Molecules In Vivo, Raogo Ouedraogo, Yulan Gong, Brett Berzins, Xiandong Wu, Kalyankar Mahadev, Kelly Hough, Lawrence Chan, Barry J. Goldstein, Rosario Scalia
Adiponectin Deficiency Increases Leukocyte-Endothelium Interactions Via Upregulation Of Endothelial Cell Adhesion Molecules In Vivo, Raogo Ouedraogo, Yulan Gong, Brett Berzins, Xiandong Wu, Kalyankar Mahadev, Kelly Hough, Lawrence Chan, Barry J. Goldstein, Rosario Scalia
Department of Medicine Faculty Papers
This study reports on what we believe are novel mechanism(s) of the vascular protective action of adiponectin. We used intravital microscopy to measure leukocyte-endothelium interactions in adiponectin-deficient (Ad–/–) mice and found that adiponectin deficiency was associated with a 2-fold increase in leukocyte rolling and a 5-fold increase in leukocyte adhesion in the microcirculation. Measurement of endothelial NO (eNO) revealed that adiponectin deficiency drastically reduced levels of eNO in the vascular wall. Immunohistochemistry demonstrated increased expression of E-selectin and VCAM-1 in the vascular endothelium of Ad–/– mice. Systemic administration of the recombinant globular adiponectin domain (gAd) to Ad …
Acute Myocardial Infarction In Systemic Sclerosis Patients: A Case Series, Chris T. Derk, Sergio A. Jimenez
Acute Myocardial Infarction In Systemic Sclerosis Patients: A Case Series, Chris T. Derk, Sergio A. Jimenez
Department of Medicine Faculty Papers
To characterize the clinical manifestations of patients with systemic sclerosis who develop a myocardial infarction (MI), a retrospective review of the medical records of all patients who were admitted to our institution between 1982 and 2002 and had the dual diagnosis of systemic sclerosis and an acute MI was done. From 1,009 systemic sclerosis hospital admissions, 11 (1.09%) were for an acute MI. Three of these patients had normal coronaries, and instead of wall motion abnormalities, left ventricular hypertrophy was the predominant finding of an echocardiography. The odds ratio of finding normal coronaries in systemic sclerosis vs the general population …
Trivalent Vaccine Against Botulinum Toxin Serotypes A, B, And E That Can Be Administered By The Mucosal Route, Easwaran Ravichandran, Fetweh H. Al-Saleem, Denise M. Ancharski, Mohammad D. Elias, Ajay K. Singh, Mohammad Shamim, Yujing Gong, Lance L. Simpson
Trivalent Vaccine Against Botulinum Toxin Serotypes A, B, And E That Can Be Administered By The Mucosal Route, Easwaran Ravichandran, Fetweh H. Al-Saleem, Denise M. Ancharski, Mohammad D. Elias, Ajay K. Singh, Mohammad Shamim, Yujing Gong, Lance L. Simpson
Department of Medicine Faculty Papers
Most reports dealing with vaccines against botulinum toxin have focused on the injection route of administration. This is unfortunate, because a mucosal vaccine is likely to be more efficacious for patients and pose fewer risks to health care workers and to the environment. Therefore, efforts were made to generate a mucosal vaccine that provides protection against the botulinum serotypes that typically cause human illness (serotypes A, B, and E). This work demonstrated that carboxy-terminal peptides derived from each of the three serotypes were able to bind to and penetrate human epithelial barriers in vitro, and there was no cross inhibition …
H-Ras Inhibits Rhoa/Rock Leading To Decrease In The Basal Tone In The Internal Anal Sphincter, Marcio A.F. De Godoy, Chirag A. Patel, Scott A. Waldman, Motoya Katsuki, Raymond F. Regan, Satish Rattan
H-Ras Inhibits Rhoa/Rock Leading To Decrease In The Basal Tone In The Internal Anal Sphincter, Marcio A.F. De Godoy, Chirag A. Patel, Scott A. Waldman, Motoya Katsuki, Raymond F. Regan, Satish Rattan
Department of Medicine Faculty Papers
Background & Aims: Present studies evaluated the role of H-ras and its implications in the RhoA/Rho kinase (ROCK) pathway in regulating basal tone in the murine internal anal sphincter (IAS).
Methods: Studies were performed in the IAS from the wild type (H-ras+/+) and knock-out (H-ras-/-) mice. The basal tone of smooth muscle strips were measured by isometric force transducers. Length of smooth muscle cells (SMC) isolated from the IAS in the basal state was determined by phase contrast microscopy. Experiments were repeated in the presence of Y 27632 a ROCK inhibitor. Involvement of the RhoA/ROCK machinery …
Effect Of Genetic Variations In Platelet Glycoproteins Ibα And Vi On The Risk For Coronary Heart Disease Events In Postmenopausal Women Taking Hormone Therapy, Paul F. Bray, Timothy D. Howard, Eric Vittinghoff, David C. Sane, David M. Harrington
Effect Of Genetic Variations In Platelet Glycoproteins Ibα And Vi On The Risk For Coronary Heart Disease Events In Postmenopausal Women Taking Hormone Therapy, Paul F. Bray, Timothy D. Howard, Eric Vittinghoff, David C. Sane, David M. Harrington
Department of Medicine Faculty Papers
Millions of women still use postmenopausal hormone therapy (HT). We genotyped 2090 women in Heart and Estrogen/progestin Replacement Study for functional polymorphisms in GP1BA and GP6 and assessed the coronary heart disease (CHD) event rate over 5.8 years of follow-up. In patients receiving placebo, there was an increased CHD death/myocardial infarction (MI)/unstable angina (UA) event rate in carriers of the GP1BA -5C allele (adjusted [adj] P = .006). HT increased the hazard ratio (HR) of CHD events in patients with the GP1BA -5TT genotype by 16% and reduced the HR in patients with the TC+CC genotypes by 46% (adj interaction …
Cystic Lymphangioma Of The Pancreas, Madhusudhan R. Sanaka, Thomas E. Kowalski
Cystic Lymphangioma Of The Pancreas, Madhusudhan R. Sanaka, Thomas E. Kowalski
Department of Medicine Faculty Papers
A case report.