مجله دانشگاه علوم پزشکی گرگان
سال سیزدهم شماره 1 (پیاپی 37، بهار 1390)

The food additives, like sodium and potassium benzoate are used in many food products and drugs to prevent the growth of yeast and molds. There is no report about the histopathological effect of potassium benzoate. Placenta, has a critical role in embryonic development therefore this study was set up to evaluate the effects of potassium benzoate on placenta of BALB/c mice.

45 BALB/c female mice were allocated into two experimental (1, 2) and one control groups. Experimental groups received daily intraperitoneal injection of 280 and 560 mg/kg/body weight of potassium benzoate and control group received normal saline. All injections were done during 10 days before mating and 5th to 16th of gestational days (GD). In GD 18 all placenta were removed via cesarean section. Macroscopic studies for morphological abnormalities were done and after measuring of placental weight and diameter, for microscopic studies the specimens were fixed and tissue passage were done. Tissue sections were stained with hematoxylin-eosin and histopathological changes were studied. Weight, diameter and percentage of agenesis of placenta in all groups were gathered. Data analyzed with usingSPSS-11.5, ANOVA and Tukey tests.

The mean weight and diameter of the placenta in both experimental groups 1 and 2 were significantly decreased compared to control group. Also atrophy of placenta in the experimental groups was increased significantly compared to the control group (P<0.05). Comparison of weight and diameter between groups 1 and 2 was not significant. Percentage of placenta agenesis in the experimental groups was increased significantly compared to the control group (P<0.05). Massive hemorrhage in labyrinth zone, fetal and maternal zones were seen in both experimental groups.

This study showed that exposure of potassium benzoate during mice pregnancy cause morphological and histopathological changes of placenta, including decrease of weight and diameter, agenesis, hemorrhage and tissue disorders.

Cutaneous leishmaniases with two forms of rural and urban is the endemic diseases and as a health problem in our country. Identification of parasite species and type of disease is very important for treatment of disease as well as for planning of control program. The microscopic observations by Giemsa-stained smears is the most common laboratory test for the diagnosis of cutaneous leishmaniasis, but the determination of parasite species is impossible and utilization of other ways such as biochemical and molecular methods is required. This study was carried out to determine the parasite species caused cutaneous Leishmaniasis by Nested PCR in Damghan, Iran.

This descriptive study was performed on 67 patients with dermal lesions that referred to Damghan health center laboratory in Iran during 2008. The patient's information were recorded in questionnaire. DNA of Giemsa-stained slides from patients was extracted and evaluated by specific primers of kinetoplast DNA using Nested PCR.

Leishmania parasites were observed in 57 patients under light microscope. The 10 patients were infected by other dermal diseases. The PCR result showed the parasite presence in lesions of 57 patients is Leismania major. 54% of patients were male and 46% were female. 72% of the patients were lived in rural areas. 50.9% of disease was observed in over 25 years old patients. Hands were the most common region of ulcer (44.7%). 48% of the patients had one ulcer and the other patients had two or more ulcers. High prevalence (31.6%) of disease was observed in October.

This study showed that zoonotic cutaneous leishmaniasis to be prevalent in this area and Nested PCR method is a sensitive and accurate to leishmania species characterization.

The Clostridium botulinum is one of the most important causative of food poisoning. Spores of Clostridium botulinum spread out in the soil, the sea sediments, the marine environments and the marine animals. In recent years use of the marine food products like as fish and cultured fish are elevated. The aim of this study was done to compare between processing and non processing fish infected by predominant type of Clostridium botulinum.

This descriptive study was done on the 146 samples of fish in two species of processed and non prosecced that collected from Gilan province in Iran during 2008. These samples included the Liza auratus Fish (45 processed fish and 28 non processed fish) and the Salmo Trutta caspius Fish (34 processing fish and 39 non processing fish). The samples examined according to the APHA2000 and FDA2003 protocols. Data Analyzed with SPSS-13 and Chi-Square test.

16 (11%) of samples (13% of the processed fish and 7.5% of non processed fish) were confirmed that infected by Clostridium botulinum. Also the dominant type of exotoxin was Type E. The Type E exotoxin was determined from 11 of the samples (6 processed fish and 5 non processed fish).

This study showed that fish are infected by Clostridium botulinum special the type E. also use of fish in bad preparation (half cooking and add material in its stomach) may cause the food poisoning.

Controversies results in quality of life associated with the type of delivery have been reported. This study was performed to determine the relationship between Women’s Quality of life and type of delivery.

This descriptive analytical study was conducted on 300 women that referring to health center in kashan city during 2007-08. The women were divided in two groups according to the type of delivery whether it was cesarean section or vaginal delivery. Special life quality questionnaire, 2 and 4 months after delivery was completed by women. Scores of aspects in 2 and 4 months after delivery were determined and compared between two groups. Data was analyzed by SPSS-16 software, Chi-Square, independent t- test, pair t test and Mann- U Whitey test.

Findings showed no differences in aspects of quality of life between cesarean section and normal delivery groups except in “Mother's satisfaction toward delivery” that results showed higher score 2 months (p=0.03) and 4 months (p=0.018) after normal delivery. Scores of this aspect in 2 months after normal delivery and cesarean section was (4.40±1.11, 3.76±1.16) and in 4 months after normal delivery and cesarean section was (4.13±1.40, 3.82±1.22) respectively.

This study showed there was not significant difference in women quality of life between cesarean section and normal delivery 2 and 4 monthes after delivery.

Celiac is a hereditary disease presented with chronic inflammation of small intestine. Several studies supposed a relationship between Celiac disease and Inflammatory Bowel Disease (IBD). Tissue trans-glutaminase antibody is one of the best serological markers in Celiac disease. This study was designed to evaluate the association of Celiac and IBD using tissue trans-glutaminase antibody.

In this descriptive study 127 confirmed IBD patients who were referred by gastroentrologists 2005-08 enrolled into the study. A questionnaire was completed and tissue trans-glutaminase antibody was evaluated with ELISA method with a Cut-off=12 U/ml.

Among 127 referred patients, serum samples of 102 patients were collected. Mean±SD of age was 36.17±15.2 years and 48% were males. Ulcerative colitis, Crohn’s disease and other colitis were observed in 76 (74.5%), 7 (6.9%) and 19 (18.6%) of patients, respectively. Tissue trans-glutaminase antibody was positive (19.8 U/L) in one 46-years-old male patient with ulcerative colitis.

Tissue trans-glutaminase antibody titer was not significantly different between IBD patients and controls, thus it seems not appropriate to suggest as one of the routine tests in IBD patients.