ABSTRACT
OBJECTIVE@#Accumulation of estrogenic compounds and other carcinogens in normal breast tissues contributes to unpredictable breast cancer incidence during adolescence and throughout life. To assess the role of parabens in this phenomenon, the paraben content of adjacent normal-malignant breast tissues is measured in women with breast cancer living in Isfahan Province, Iran.@*METHODS@#Adjacent normal-malignant breast tissue samples were obtained from 53 subjects. The parabens including methyl-paraben (MePB), ethyl-paraben (EtPB), propyl-paraben (PrPB), and butylparaben (BuPB) were extracted from the sample supernatant and then subjected to gas chromatography analysis.@*RESULTS@#Some risk factors for breast cancer were stimulated by parabens in adjacent malignant-normal breast tissues among young and middle-aged women with breast cancer. We observed a significant association for dose-response pattern of MePB [OR = 98.34 (11.43-185.2), P = 0.027] for both ER+ and PR+ women and MePB [OR = 164.3 (CI: 112.3-216.3), P < 0.001] for HER2+ women than women with negative receptors. The risk of 95-fold increase in MePB dose and 164-fold increase in ΣPBs dose were significant for women with hereditary breast cancer in first-degree relatives.@*CONCLUSION@#These results may promote future epidemiology studies and strategies to improve women's lifestyle and consume paraben-free products.
ABSTRACT
Tuberculosis is one of the most important infectious diseases and a major cause of morbidity and mortality in developing countries. Multi drug resistant tuberculosis is a new threat, which can result in a high case fatality rate. This study was conducted to define the incidence of multidrug resistant tuberculosis in Kermanshah. Antibiogram was performed on PCR-confirmed isolates of mycobacterium tuberculosis by using the proportion method. Eight cases [57.1%] showed resistance to 1microg/ml Isoniazid. Resistance to Rifampicin was identified in 46.2% of cases. This study showed a high rate of single drug and multidrug resistance. We recommend antibiogram for all cases of tuberculosis
ABSTRACT
Inflammatory myofibroblastic tumor [MT] or inflammatory pseudotumor is a tumoral lesion which can be seen in all age groups and in all internal organs. It is in differential diagnosis with some important neoplasms such as Leiomyosarcoma, Rhabdomyosarcoma, and Sarcomatoid carcinoma. Differentiation between these tumors requires as special diagnostic tool such as Immunohistochemistry [IHC]. This study aimed to identify Immunohistochemical characteristics of inflammatory myofibroblastic tumors. 19 cases included in this cross-sectional study. All cases with diagnosis of: "Inflammatory myofibroblastic tumor" or " Inflammatory pseudotumor" at pathobiology laboratories of Kermanshah university, Tehran Imam Khomaini Hospital and Institute of Cancer were selected and studied by using IHC stains for CK, EMA, SMA, MSA, Desmin, P53, ALK and Vimentin. Mean age of cases was 40.4 year. 52.6% were male and 47.4% female. Most frequent affected organs were; Stomach [4 cases], Urinary bladder [3 cases], Small Intestine [3 cases], Lung and Mediastinum [3 cases], Omentum [2 cases], Retroperitoneum [1 case], Cervix [1case], Urethral [1 case] and gluteus Maximus Muscle [1 case]. Vimentin [94.7%], MSA [57.9%] and SMA [47.4%] were the most frequent expressed IHC biomarkers in diagnosed tumors respectively. CK is a reliable marker for differentiation between these lesions and Sarcomatoid carcinoma. For differentiation from Leiomyosarcoma, Rhabdomyosarcoma and Postoperative Spindle Cell nodule, using Desmin is a useful biomarker. It is recommended that "IMT" be used for those lesions that express ALK and/or those that cytogenetic studies reveal a fusion of introducing genes. Other lesions should be classified and reported as "Inflammatory Pseudotumor"