Nonsteroidal anti-inflammatory drugs reduce the incidence and mor tality of colorectal carcinoma. Their chemopreventive effects appear to be due to inhibition of cyclooxygenase (COX)-2. Here, we have studied the relationship between the COX-2 mRNA levels and pathological charac teristics in 43 primary colorectal carcinomas. COX-2 levels were signifi cantly higher in tumors with larger sizes and...

Salmonella spp. are pathogens involved in most salmonellosis rabbits. This study examined disease rabbits raised Thua Thien Hue, Vietnam. Two hundred and 56 rectal swabs of were taken, a carrier rate 33.98% was found. In addition, all the isolated strains 100% motile; positive for H2S, catalase, Voges Proskauer, coagulase, citrate, maltose, dextrose; negative indole, methyl red, urease, oxidase...

Minimally processed foods are widely consumed in Kaduna, Nigeria and the world at large. However, poor quality control during their processing make them prone to contamination by enteropathogens known possess multiple virulence genes, possibly causing morbidities mortalities. Investigating prevalence genes of food-borne bacteria is therefore paramount. This study was aimed detecting enteropatho...

The aim of this study to detected contamination with Salmonella spp. In imported chicken meat in the local markets of AlDiwaniyia city . to protect health of consumer and Determintion the most contaminated origin with salmonella spp. A toatl of 100 chicken meat samples collected from different origin. The bacteria cultured and isolated in enrichment and selective media . Salmonella isolates wer...

وراثت مقاومت سفیدبالک گلخانه، Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae)، به دو ترکیب ایمیداکلوپرید و کلرپایریفوس مورد مطالعه قرار گرفت. در این پژوهش، از جمعیت فیلستان ورامین (FL) عنوان والد مقاوم فردیس کرج (FR) حساس استفاده شد. مقدار ترتیب حدودا 62/13 91/14 برابر بود. عدم وجود اختلاف معنی‌دار LC50 روی تلاقی‌های F1 (R♂×S♀) Fʹ1 (R♀×S♂) نشان داد که T. نوع اتوزومی (غیرجنسی) است. ه...

Precisely knowing the stoichiometry of their components is critical for investigating structure, assembly, and function of macromolecular machines. This has remained a technical challenge in particular for large, hydrophobic membrane-spanning protein complexes. Here, we determined the stoichiometry of a type III secretion system of Salmonella enterica serovar Typhimurium using two complementary...

There is conflicting data regarding whether commercial chilling has any effect on persistence of Salmonella serovars, including antibiotic resistant variants, on chicken carcasses. A total of 309 Salmonella Typhimurium and Salmonella Kentucky isolates recovered from pre- and post-chill whole broiler carcasses were characterized for genetic relatedness using Pulsed Field Gel Electrophoresis (PFG...