نتایج جستجو برای: normal data conversion cox

تعداد نتایج: 2984912  

F Ramazanali M Ashrafi M Shahhoseini, P Afsharian R Aflatoonian R Salman Yazdi S Mahdian

Background MIF via its receptor, CD74, initiates a signaling cascade that leads to proliferation and survival of cells. Also, MIF binding to CD74 activates p38 signaling pathways that lead to positive effect on the expression of COX-2. The aim of this study was to evaluate the gene expression profile of MIF, CD74 and COX-2 in normal, ectopic and eutopic endometrium during menstrual cycle. The e...

Journal: :acta medica iranica 0
ramin ravangard department of health management and economics, school of public health, tehran university of medical sciences, tehran, iran. mohamad arab department of health management and economics, school of public health, tehran university of medical sciences, tehran, iran. arash rashidian department of health management and economics, school of public health, tehran university of medical sciences, tehran, iran. ali akbarisari department of health management and economics, school of public health, tehran university of medical sciences, tehran, iran. ali zare department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran. hojjat zeraati department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran.

survival analysis is a set of methods used for analysis of the data which exist until the occurrence of an event. this study aimed to compare the results of the use of the semi-parametric cox model with parametric models to determine the factors influencing the length of stay of patients in the inpatient units of women hospital in tehran, iran. in this historical cohort study all 3421 charts of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1390

this study attempted to explore if teaching english collocations through two different modes of awareness-raising and input flooding has any possible differential effect on immediate retention as well as retention in a delayed assessment. it also compared the possible differential effect of teaching english collocations implicitly and explicitly on actively using the items in writing. m...

جان بابایی, قاسم, قربانی قلی‌آباد, سمیه, یزدانی چراتی, جمشید,

Background and purpose: One of the most common methods used to estimate the effects of explanatory variables on survival time, is Cox semi parametric model. However, under certain circumstances, accelerated failure time parametric models are superior to the Cox model. The purpose of this study was to assess the efficiency of parametric and semi-parametric models in survival analysis of patients...

Journal: :Insurance: Mathematics and Economics 2002

Journal: :Annals of diagnostic pathology 2006
Cornelia Leo Stefanie Faber Bettina Hentschel Michael Höckel Lars-Christian Horn

OBJECTIVES There is a paucity of data on cyclooxygenase (COX)-2 expression in normal breast tissue and on the changes in COX-2 expression from normal tissue via ductal carcinoma in situ (DCIS) lesions to invasive cancer. The aim of this study, therefore, was to investigate COX-2 protein expression in normal breast tissue, DCIS, and invasive breast cancer in samples from the same patients. MET...

A new series of imidazo[2,1-b]thiazole analogs containing a methyl sulfonyl COX-2 pharmacophore was synthesized and evaluated for their COX-2 inhibitory activity. According to in-vitro COX-1/COX-2 inhibition data, all compounds (6a-g) were selective inhibitors of COX-2 isoenzyme with IC50 values in the highly potent 0.08-0.16 mM range. These results indicated that both potency and selectivity o...

  Background: Acceleration in sputum smear conversion helps faster improvement and decreased probability of the transfer of TB. In this study, we aimed to investigate the effect of green tea extract supplementation on sputum smear conversion and weight changes in smear positive pulmonary TB patients in Iran.   Methods: In this double blind clinical study, TB patients were divi...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1998
C J Smith Y Zhang C M Koboldt J Muhammad B S Zweifel A Shaffer J J Talley J L Masferrer K Seibert P C Isakson

The enzymes cyclooxygenase-1 and cyclooxygenase-2 (COX-1 and COX-2) catalyze the conversion of arachidonic acid to prostaglandin (PG) H2, the precursor of PGs and thromboxane. These lipid mediators play important roles in inflammation and pain and in normal physiological functions. While there are abundant data indicating that the inducible isoform, COX-2, is important in inflammation and pain,...

Afsharian P Mahdian S Ramazanali F Salman Yazdi R, Shahhoseini M, Yaghmaei P,

Background: Endometriosis is a gynecological disease associated with severe pelvic pain and infertility. Immunological changes that occur in patients with endometriosis include reduced natural killer cell and T-lymphocyte cytotoxicity in the peritoneal fluid, and an elevated number of activated macrophages. MIF via its receptor, CD74, initiates a signaling cascade that leads to proliferation an...

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