Leprosy is a chronic disease caused by Mycobacterium leprae. Its course is complicated by acute onset of inflammatory reactions which can occur before, during and after treatment of the disease. The reactions are classified as Type 1 reaction or reversal reaction and Type 2 reaction or erythema nodosum leprosum (ENL). Reversal reaction is a Type IV delayed type hypersensitivity reaction while e...

clostridium perfringens is an important cause of bacterial food poisoning worldwide. the disease is caused by c. perfringens enterotoxin (cpe) encoded by cpe gene. the aim of this research was to identify the different types of c. perfringens and the presence of cpe gene in isolated bacteria from broilers’ meat marketed in retail meat shops of mashhad city in northeastern of iran. after isolati...

J.t is well established thait both the an ti body de­ficiency and the reaction beru,een antigen and _ant.i­ hody cause many diseases Then there is antibody ·c1e­,ficiency the resulting disease is called antibody defi­ciency disease; and when the contact of antigen vih antibody produces the disease or the complex of anti­gen with antibody precipitates and causes tissue dama­ge the ,lesion is cal...

New type of heterogeneous nanocatalyst for deoximation based on Tungsten oxide supported on mesoporousmolecular sieve MCM-41 was developed. This new system representes inexpensive and highly activeheterogeneous nanocatalyst for deoximation under green and mild reaction conditions.

5-aminosalicylic acid (5-asa) is currently prepared by electrochemical reduction of 5-nitrosalicylic acid (5-nsa) in acidic media. in this work, electrolytic reduction of 5-nsa in alkaline media is presented. reactionconditions and parameters such as anode and cathode electrodes, electrolyte type, reaction time, temperature,current, and the ph for isolation of product are investigated. the yiel...

Background & Objective:  Food allergy is an important and increasing problem in children. The aim of this study was to investigate the type and prevalence of food reactions in child care centers of Zanjan city (northwest, Iran).  Materials & Methods:  This cross-sectional study was performed in 40 kindergartens from Zanjan city. A questionnaire containing information about the occurrence of fo...