background: hormesis is defined as the bio-positive response of something which is bio-negative in high doses. in the present study, the effect of radiation hormesis was evaluated on the survival rate of immunosuppressed balb/c mice by cyclosporine a. materials and methods: we used 75 consanguine, male, balb/c mice in this experiment. the first group received technetium-99m (3700bq) and the sec...

Background: We explored survival of skin cancer and its determinants in Kurdistan province of Iran. Methods: In a retrospective cohort design, we identified all registered skin cancer patients in Kurdistan Cancer Registry from year 2000 to 2009. Information on time and cause of death were obtained from Registrar’s office and information on type, stage and anatomic locations were extracted fr...

to survive in natural waters, bacteria must respond to variety of environmental factors. flexibacter survival in the aquatic environment is influenced by number of parameters, such as temperature, heavy metal concentration and oxidation. here we investigate the influence of these factors on the survival of flexibacter chinensis in starvation medium. our data shows that different concentrations ...

Introduction: Cancers are the second cause of death in the world after cardiovascular diseases. Cancer of the stomach is one of the most important forms of cancer worldwide. It is the fourth most common form of cancer and the second most common cause of death in the world. There is a wide variation in the survival of gastric cancer among and even within countries. In this study we seek to inves...

the 5-year survival rate is a good prognostic indicator for patients with gastric cancer that is usually estimated based on kaplan-meier. in situations where censored observations are too many, this method produces biased estimations. this study aimed to compare estimations of kaplan-meier and weighted kaplan-meier as an alternative method to deal with the problem of heavy-censoring. data from ...

background hiv and hcv infections are basic issues of many health systems. since hiv and hcv are transmitted similarly, it is common to become infected by them simultaneously. no consensus exists on the effect of hcv infection on the survival of hiv-infected patients. objectives this study aimed to investigate the issue in a relatively large cohort of patients who had a high prevalence of this ...

Melanoma is the most fatal type of skin cancer. It is ranked first in death of skin cancer diseases. This study establishes a statistical model that can predict the survival time of localized melanoma patients, as a function of age at diagnosis, tumor thickness, and extension of the tumor (tumor invasion). The discrete time survival method was used to build the statistical model. The patients i...

to determine the addition of value of neoadjuvant, concurrent and adjuvant chemotherapy to radiation in the treatment of nasopharyngeal carcinoma with regard to the overall survival (os) and disease free survival (dfs) within a six year period in tehran cancer institute. files of all patients with nasopharyngeal carcinoma treated by radiotherapy with or without concurrent chemotherapy in a cura...

normal 0 false false false en-us x-none fa microsoftinternetexplorer4 aim : the aim of this study was to describe our results and investigate the survival of below - 18 - year - old patients undergoing lrdlt and the factors affecting this. background : living related donor liver transplantation (lrdlt) has become a good option to provide suitable grafts for children with liver diseases. using t...