فهرست مطالب najafi sh

Oral cancer is among the 10 most common cancers worldwide with an increasing global incidence. Compromised antioxidant defense system plays a role in occurrence of cancer. This study evaluated the salivary antioxidant level of oral cancer patients compared to a control group. Patients and This case-control study was conducted on 22 oral squamous cell carcinoma patients presenting to Imam Khomeini Hospital in Tehran, Iran, as the case and 20 healthy controls that matched the case group in terms of age, sex and race. Total salivary antioxidant level was measured in both groups. The salivary antioxidant level of patients was significantly higher than that of healthy controls (P=0.029). Salivary antioxidant level of oral squamous cell carcinoma patients was significantly higher than healthy individuals. Saliva increases the anti-oxidant level as a compensatory action, thus, by administration of antioxidants we may help saliva in the fight against free radicals that are considered as predisposing factors for cancer.

The relationship between lumbar spine angles and back pain has been considered from past. Little study has been performed on evaluation of all lumbar angles including sacral inclination، lumbosacral، sacral horizontal، lumbar lordosis and segmental lumbar lordosis angles in patients with acute and chronic back pain and normal individuals. The aim of this study was evaluating these angles in the three mentioned groups. This case-control study was performed on back pain patients who referred to the physical medicine clinic of one of Tehran’s hospitals in 2010. Subjects were selected by convenience sampling method and were divided into three normal، acute and chronic back pain groups that each consisted of 35 members. Subjects’ demographic data، history and physical examination were recorded in questionnaires and their height، weight، abdominal circumference and BMI were measured. Radiographic clichés were investigated by a specialist and lumbar angles were recorded. Data was analyzed by ANOVA، independent t-test and Pearson correlation coefficient using SPSS 18 software. The mean range of sacral inclination angle was 42. 40±9. 18 that the difference was not significant in two genders، but was significant in acute and chronic patients and normal individuals. There was no statistical difference regarding other angles among patients and normal individuals. The degree of sacral inclination angle is significantly higher in back pain patients compared to normal people. Paying attention to this angle in patients’ radiographic clichés is of importance and its correction may be beneficial in reducing their symptoms.

Introduction & Cardiovascular disease and hemodialysis incompetence are the main factors determining the disability and mortality in dialysis patients. Increasing in adequacy of hemodialysis is quite effective in patient's prognosis. There are several methods for evaluating the adequacy and need of hemodialysis. One of these methods is the assessment of KT/V in patients. This study aimed to determine the adequacy of hemodialysis patients in hemodialysis units in Kohgilouyeh and Boyerahmad hospitals. This was a cross-sectional descriptive study which was conducted at Yasuj University of Medical Sciences in 2009. The study population included all patients under hemodialysis. In this study, 41 patients were eligible for study in hemodialysis units. From all patients, before and after hemodialysis, blood samples were taken and blood urea nitrogen and creatinine were measured. KT/V and URR were used for the evaluation of dialysis adequacy. Collected data were analyzed by descriptive statistics (mean, standard deviation) and inferential (one way ANOVA test and t-test) using the SPSS software. Results of this study showed that the mean BUN of patients before dialysis was 69.9 ± 23/6 and after that was 32/63 ± 11/96. Minimum KT/V, 0.45 and a maximum of 1.77 with average was 0.94 ± 0.4. Considering the standard KT/V, 17 patients (41.5 percent) with optimal dialysis adequacy, 3 patients (7.3 percent) near-optimal rate and 21 people (51.2 percent) were less than optimal. The minimum URR was 28% and the maximum was 75% with an average of 50% ±0.69 respectively. Considering the URR criteria, 11 patients (26.8 percent) with optimal dialysis adequacy, 10 patients (24.4 percent) near to the optimum level and 20 patients (48.8 percent) were less than optimal. in view of the standard KT/V and URR, much of the patients had inadequate hemodialysis at these hemodialysis centers. Because of the direct connection between the clinical status and adequacy of hemodialysis and mortality, evaluation of the related causes is necessary.