Vol 49, No 2 (2011)

Published: 2011-02-15

Articles

  • XML | PDF | downloads: 338 | views: 431 | pages: 71-77

    The TP53 tumor suppressor gene plays important roles in genomic stability. A common polymorphism at codon 72 of TP53 gene has been associated with increased risk for many human cancers. The p53 protein is expressed in colorectal cancer, but the reported prevalence of its expression varies widely. In the present study, the p53 protein expression in different genotypes of its codon 72 , was investigated. We undertook a case–control study on 250 controls and 250 paraffin block specimens of sporadic colorectal adenocarcinomas from the city of Isfahan. PCR amplification of TP53 codon 72 polymorphism: TP53 codon 72 genotypes were detected by PCR using specific primer pairs for amplifying the proline or the arginine Alleles. The PCR reaction was done separately for each of the two polymorphic variants. The amplified products were subjected to electrophoresis on 1% agarose gel in 1× TBE buffer and visualized on a transilluminator using ethidium bromide. Immunohistochemical Staining: We evaluated the expression patterns of p53 protein, as potential prognostic marker in colorectal cancer specimens by immunohistochemical staining. Statistical analyses: The χ2-test was used to assess the significance of any difference in the prevalence of TP53 codon 72 polymorphism between colorectal cancer patients and controls. The odds ratio and 95% CI (confidence intervals) was used as a measure of the strength of the association. Statistical significance level was set to P≤0.05. In control samples, the genotype distribution for TP53 polymorphism showed 30.4%, 45.2% and 24.4% for the arginine/arginine, arginine/proline and proline/proline genotypes, respectively. Allelic frequencies corresponded to 0.663 for the arginine allele and 0.338 for the proline allele. In the cancer group 38.8% of the cases were arginine/arginine, 40.4% were arginine/proline and 20.8% were proline/proline. The corresponding frequencies were 0.590 for the arginine allele and 0.410 for the proline allele. A significant difference between cases and controls was found for the arginine/arginine genotype compared with (grouped) arginine/proline and proline/proline genotypes (Odds Ratio = 1.451 (1.002-2.103), P=0.048). Overexpression of p53 was observed in 50.8 percent of cancer specimens which most of them were arginine/arginine genotype (P<0.001). TP53 polymorphism and arginine/arginine genotype may be correlated with overexpression of p53 and increased risk for colorectal cancer in city of Isfahan.

  • XML | PDF | downloads: 157 | views: 308 | pages: 78-80

    Recent reports have suggested that cytomegalovirus (CMV) infection may contribute to risk of cardiovascular disease. However, relationship between CMV infection and unstable angina (UA) is controversial and studies about this subject in Iran and even region are lacking. The aim of this study was to determine whether unstable angina is related to seropositivity to chronic cytomegalovirus infection. We measured serum CMV IgG levels in a case control study participants in CCU in Razi Hospital, Ahvaz, Iran, from 2004 to 2005. Blood samples were drawn during study period from 96 patients (mean age 56 years) with UA according to American Heart Association Criteria and from 96 participants free of cardiovascular disease (mean age 58 years) and stored at -20°C. Blood samples of patients were undertaken for investigating the specific anti CMV-IgG by ELISA method. Data were analyzed in SPSS 11.5 by using chi square test, odds ratios (OR) with 95% confidence intervals (CI). Ninety three percent of patients with unstable angina and 96.7% in the control group presented a positive anti CMV-IgG. Odds ratio was 0.52 with95% CI: 0.10 to 2.42. There was no significant correlation between CMV-IgG positivity and unstable angina (P>0.05). There was also no differences in CMV-IgG positivity in clinical groups of UA (P>0.05). The relationship between seropositivity of CMV-IgG and unstable angina has been restituted by the results of this study. However, further population based cohort studies for relationship between CMV infection and coronary artery disease must be conducted.

  • XML | PDF | downloads: 426 | views: 388 | pages: 81-84

    To evaluate the value of random urinary protein creatinine ratio in prediction of 24h proteinuria in hypertensive pregnancies. Method: Random urine samples and routine 24h urine collections were collected from hypertensive pregnant women (n=100). Reliability of random urinary protein–creatinine ratio was assessed by receiver operator characteristic (ROC) curve to detect significant proteinuria (300mg/day) using 24h. Urine protein as a gold standard. Forty six patients (46%) had significant proteinuria. The random protein creatinine ratio was correlated to 24h urine protein excretion (r2 =0.777, P<0.001) Area under ROC curve to predict proteinuria was 0.926 (95% CI: 0.854–0.995, P<0.001). A cut off value of 0.22mg/mg for protein creatinine ratio best predicted significant proteinuria with sensitivity, specificity, positive and negative predictive values of 87%, 92.6%, 90.6% and 89.3% respectively. Random urinary protein creatinine ratio is a simple inexpensive and excellent alternative to 24h urine collection. It's helpful in diagnosis of preeclampsia and can be used as a pre admission test in PIH cases.

  • XML | PDF | downloads: 235 | views: 366 | pages: 85-88

    The FNA (fine needle aspiration) procedure is simple, inexpensive, available and a safe method for the diagnosis of a neck mass. FNA has numerous advantages over open surgical biopsies as an initial diagnostic tool; therefore we decided to compare the accuracy of this method with open biopsy. This Retrospective as well as Descriptive study comparing preoperative FNA results with existing data in the Pathology Department in Bu-Ali and Amir Alam Hospitals. Our study included 100 patients with neck masses of which 22 were thyroid masses, 31 were salivary gland masses, and 47 were other masses. Age ranged from 3 years to 80 years with the mean age of 42.6 years. There were 59 men and 41 women. The Sensitivity was 72%, Specificity 87%, PPV 85%, NPV 75% and diagnostic Accuracy 79%. In this study we had also26% false negative and 15% false positive. FNA is a valuable diagnostic tool in the management of neck masses; also it has been used for staging and planning of treatment for the wide and metastatic malignancy. This technique reduces the need for more invasive and costly procedures. According to the high sensitivity and high accuracy in this study, FNA can be used as the first step of diagnoses test in neck masses.

  • XML | PDF | downloads: 196 | views: 256 | pages: 89-92

    This study evaluates the effect of preoperative increased level of serum creatinine (Cr) on early outcomes after coronary artery bypass graft surgery (CABG). 1140 patients who underwent CABG in our center were studied. Patients with Cr >2.25 mg/dl or preoperative dialysis and who had off-pump operations were excluded. Group 1 consisted of 892 patients with normal Cr (0.5-1.2 mg/dl) and group 2 consisted of 248 (21.8%) patients with mild increased level of serum Cr (1.3-2.2 mg/dl). Patients in group 1 were younger than group 2. There were more patients with hypertension in group 2, but there were not statistically significant difference between two groups in terms of the frequency of diabetes, smoking, cerebrovascular disease and New York Heart Association (NYHA) class. Left ventricular ejection fraction (LVEF) was lower in group 2. Cardiopulmonary bypass time (CPB) was longer in group 2. Early mortality was 3.2% in group 1 and 8.4% in group 2 (P<0.001). Prolonged ICU stay, low cardiac output, prolonged mechanical ventilation, postoperative atrial fibrillation, postoperative re-exploration and sepsis were more frequent in group 2. Mild increase in serum Cr level preoperatively is a marker of increased early mortality and outcome after CABG.

  • XML | PDF | downloads: 300 | views: 370 | pages: 93-97

    Premature and critically sick infants frequently experience several interventions, including blood transfusions, parentral nutrition, and prescriptions during hospitalization that could affect the result of thyroid function test. This study aims to investigate the correlation between thyroxine level and clinical short term outcome among the newborn infants in the neonatal intensive care unit (NICU). We assessed serum levels of thyroxine and thyroid stimulating hormone of 99 neonates who were admitted in the NICU from September 1st 2004 to March 30th 2005. Number of patients with low thyroxin level (less than 6.5 µg/dl) was determined and the relation between serum total thyroxine level and birth weight, gestational age, duration of hospitalization, clinical diagnosis, and final outcome was investigated. Short term outcome was considered as duration of hospitalization and discharge alive from hospital. Prevalence of hypothyroxinemia was 26 percent. Later assessment of thyroxine level within 3 weeks revealed normal level of this parameter (8.12 µg/dl ±1.36). Patients with lower gestational age and lower birth weight had lower thyroxine level (7.15 µg/dl ±2.56, and P=0.03, 6.72 µg/dl ±3.03, and P=0.08). Low thyroxine level was not associated with adverse short-term clinical outcome (mortality rates; 3(11%) and 9(12%), and duration of hospitalization among 17.7±9.8 vs 16.7± 13.0 in patients with hypothyroxinemia and low thyroxine level respectively). Hypothyroxinemia has considerable prevalence in neonatal intensive care setting and is related with lower birth weight and gestational age. Whether thyroxin levels are a marker or mediator of short term clinical outcome remains to be determined by further studies.

  • XML | PDF | downloads: 498 | views: 642 | pages: 98-102

    Welding is one of the key components of numerous manufacturing industries, which has potential physical and chemical health hazards. Many components of welding fumes can potentially affect the lung function. This study investigates the effects of welding fumes on lung function and respiratory symptoms among welders of an automobile manufacturing plant in Iran. This historical cohort study assesses 43 male welders and 129 office workers by a questionnaire to record demographic data, smoking habits, work history and respiratory symptoms as well as lung function status by spirometry. The average pulmonary function values of welders were lower relative to controls with dose-effect relationship between work duration and pulmonary function impairment. The prevalence of chronic bronchitis was higher in welders than controls. Our findings suggest that welders are at risk for pulmonary disease.

  • XML | PDF | downloads: 529 | views: 750 | pages: 109-112

    Hyperbilirubinemia at neonatal period is one of the major deteriorating factors of the auditory system. If left untreated, it may cause certain cerebral damage. This study aims to evaluate the impact of hyperbilirubinemia on the hearing of neonate. This study was conducted on 35 newborn babies with jaundice (bilirubin more than 20 mg/dL). Auditory brainstem response (ABR) and transient evoked otoacoustic emission (TEOAE) tests were performed, after treatment and one year after. ABR test results indicated that 26 children (74.3%) had normal hearing but 9 (25.7%) suffered from an impairment. As for TEOAE test, 30 children (85.7%) passed whereas the remaining (14.3%) seemed to be failures. The comparative results of the two tests pointed to autonomic neuropathy /autonomic dysreflexia symptoms in 5 babies. Due to the high incidence of Autonomic neuropathy/autonomic dysreflexia among hyperbilirubinemic babies, screening in this regard seems reasonable. Our result emphasizes the necessity of more experiments on the afflicted areas.

  • XML | PDF | downloads: 290 | views: 372 | pages: 113-114

    In order to recognize of DKA and its complications among children with DM type I, we conducted a descriptive study and all of the children with the final diagnosis of DKA. Data regarding their demographics, disease characteristics, treatment features and outcome derived from patients' medical files and registered in a data sheet. Data were analyzed using SPSS 11.0 and exhibited in the form of frequency tables and charts. There were 33 females and 30 males (53.1% and 46.9%, respectively). They were involved with ketoacidosis most commonly in summer (42.2%). Autumn, winter and spring seasons were in the next turns (29.7%, 15.6%, and 12.5%, respectively). Data analysis showed a clear improvement in the time taken to correct the acidosis with respect to the date of admission (more than 40 hours in the initial year to less than 28 hours at the final year). It seems that the management of diabetic ketoacidosis has improved during recent years. We concluded to consider ketoacidosis even in the first admission of a diabetic child.

  • XML | PDF | downloads: 270 | views: 346 | pages: 115-117

    A set of one hundred and twenty nine patients with known primary malignancy and suspected brain metastasis was reviewed in present study. The patients were selected among patients presented to the MRI section of Imam Khomeini Hospital or a private MRI center in Tabriz (Iran). Primary tumor site, clinical manifestations, number and site of lesions were identified in this patient population. The primary tumor site was breast in 55 patients (42.6%), followed by lung (40.3%), kidney (7.7%), colorectal (4.6%), lymphoma (3.1%) and melanoma (1.5%). Most patients were presented with features of increased intracranial pressure (headaches and vomiting), seizures and focal neurologic signs. Single brain metastasis occurred in 16.3% of patients, while multiple lesions accounted for 83.7% of patients. Ninety seven patients had supratentorial metastases (75.2%). Twenty cases (15.5%) had metastases in both compartments. Infratentorial lesions were observed only in twelve patients (9.3%).

  • XML | PDF | downloads: 292 | views: 384 | pages: 118-121

    Although esophageal liposarcoma is an extremely rare tumor, liposarcoma is the most common soft tissue sarcoma in adults. Liposarcoma is currently classified into the types of well-differentiated, myxoid, round cell, pleomorphic and dedifferentiated liposarcoma. Up to now only a few cases of esophagus liposarcoma have been described in the world literature. We describe a myxoid type liposarcoma of the esophagus in a 68 year old man presented with hoarseness and intermittent dysphagea to solid food. He had a huge mass in his mouth which was mobile with gag reflex. A barium swallow, esophageal manometery and CT scan of the esophagus have not clearly revealed the mass. After endoscopic surgical resection of the tumor the histological examination revealed a myxoid liposarcoma. Both the presenting signs and symptoms and the histology type are rare for such tumor. This case demonstrate a rare differential diagnosis of intermittent dysphagia as early diagnosis is so important in those tumors and should kept in mind them, although they are quite rare.

  • XML | PDF | downloads: 152 | views: 175 | pages: 122-123

    In this case study, we describe a 25 year-old male who showed the symptoms of diabetes after a period of heavy drinking. (HbA1c=13%). Treatment was started with 120 units of insulin. After stopping alcohol consumption and taking an appropriate diet, insulin was tapered down. Five months after the start of treatment, insulin was stopped (HbA1c=5%). The results showed that he was in a good metabolic control after 18 months (HbA1c=5.9%).

  • XML | PDF | downloads: 275 | views: 582 | pages: 124-126

    Primary tuberculosis of the breast is a rare disease. It usually occurs in female of reproductive age. Any form of tuberculosis mastitis may present with feature of malignancy. Diagnosis is mainly based on identification of tubercle bacilli. We report a 42-year-old woman with primary tuberculosis abscess of the breast, who underwent surgical resection. Fine needle biopsy failed to achieve specific diagnosis before surgical operation. She responded to anti-TB therapy postoperatively. In endemic area, tuberculosis should be considered in the differential diagnosis of breast tumors.

  • XML | PDF | downloads: 952 | views: 951 | pages: 153-158

    Illiteracy in studies on quality of life (QOL) and self-efficacy (SE) of diabetic patients has been ignored. Illiteracy and diabetes have high rates in developing countries. The aim of this study was to identify the effect of literacy level on health outcomes. To achieve this, we studied health outcomes such as SE, self-management behaviors and Health-Related Quality of Life (HRQOL) in diabetic patients. A cross-sectional study was carried out in an Iranian urban federally-funded diabetes clinic (with 1400 diabetes patients) in Bandar Abbas, a city located in south of Iran. 256 Non Insulin Dependent Diabetic Mellitus patients were chosen during June, July and August 2007. Patients were grouped as illiterates, low-literates and literates. SE and QOL were measured by standard questionnaires. HbA1C was measured by calorimetric method. Data was collected with interview. Data analysis was carried out with one way ANOVA Post Hoc, and bivariate analysis method. Literacy level among the three groups from the view points of age, physical domain, psychological domain, environmental domain and SE were significant. There was no significant difference for the level of HbA1C among three groups. Literacy level does not have any effects on glycemic control. There is a strong relationship between self-efficacy and QOL domains.