Parechoviruses form one of the nine genera in the picornaviridae family, and include two human pathogens: Human parechovirus type1 and 2 (Hpev1 and Hpev2). The genome of picornaviruses encodes a single polyprotein, which undergoes a cleavage cascade performed by virus encoded proteases to give the final virus proteins. The primary cleavage occurs by 2A protein and this step is critical for vi...

Reactions of 1 ,Zdihydropyridines (la-c) and 1,4-dihydropyridines (2a-c) in the presence of benzyne (3) under thermal conditions, and in the case of (2c) under photochemical conditions, have been investigated. Benzyne acts as an oxidizing agent to convert dihydropyridine (la) and (2a) to the corresponding pyridine (4) or adds as a dienophile to (lb-c).

Backgrounds: Canine parvovirus (CPV) has been incriminated as a primary pathogen related to acute hemorrhagic enteritis in dogs. Three major antigenic variants of CPV (CPV-2a/2b/2c) have so far been identified. Objectives: This study was carried out to investigate the frequency of CPV-2 and its variants (CPV-2a/2b/2c) in a population of healthy and diarrheic dogs in the north west of Iran. Meth...

parechoviruses form one of the nine genera in the picornaviridae family, and include two human pathogens: human parechovirus type1 and 2 (hpev1 and hpev2). the genome of picornaviruses encodes a single polyprotein, which undergoes a cleavage cascade performed by virus encoded proteases to give the final virus proteins. the primary cleavage occurs by 2a protein and this step is critical for vira...

background most thalassemic patients with chronic hepatitis c virus (hcv) infection do not respond to therapy with pegylated interferon (peg-ifn) plus ribavirin (rbv) due to hepatic siderosis and rbv dose reduction caused by rbv-induced anemia. objectives in the present study, we recruited hcv genotype 1-infected thalassemic patients who had relapsed after a 48-week treatment with peg-ifn plus ...