Background: Viral hepatitis is one of common infectious diseases and known as health problem around the world. Present cross-sectional study was performed to determine the association between HBeAg and HBVDNA in patients who referred to Royan Institute for Reproductive Biomedicine and Amiralmomenin Hospital (Islamic Azad University) between 2012 and 2015. Materials and methods: In this cross-sectional study, 222 patients were assessed and their HBe-Ag and HBV-DNA were analyzed by serological and molecular assays to determine the association between HBeAg and HBV-DNA for infectivity of infection. The results were gathered and recorded in the study checklist. Results: 222 chronic HBsAg positive carriers, including 74 (33. 2%) female and 148 (66. 8%) male were studied. Of studied population, 10(6. 8%) HBeAg positive, 108 (75. 5%) HBeAb positive and 94 (42. 34%) HBV DNA were detected. Level of detectable HBV-DNA was significantly higher in patients with HBeAg positive in compare with patients with negative HBe Ag (, P<0. 001). Conclusion: According to study findings, there is clinical association between HBe Ag positive and HBVDNA level and we can use HBeAg for assessing the infectivity of HBV infection.

The researches have shown that mental practice has the effective role in aquisition of motor skills. On the other hand in orthopaedic rehabilitation, balance exercise is used effectively to improve proprioception impairment that resulting from joint injuries. Little work has been done to evaluate and compare the effects of mental (M), Physical (P), and mental-physical (MP) practice on standing balance. This study was designed to assess and compare these effects. Sixty normal healthy volunteers randomly assigned in four groups. Control, M practice, P practice, and MP practice. M group imagined balance exercise on wobble board, P group performed that actually, and MP group performed both procedures together. Each group performed its practice daily up to five days. All subjects were evaluated to determine their average balance time at both the begining and the end of practice period. Results were compared in each group and between groups. Each three exercise groups showed significant improvement in compare with control group (P<0.001). There was considerable difference between MP and other groups in balance inhancement (P<0.0001). No significant difference was seen between improvement of M and P group. The results showed that all practice methods enhace balance. So it is reasonable to consider mental practice as temporary suitable replacing in individuals who are unable to do P practice due to bed rest or any musculoskeletal injury making P practice contraindicated. In addition patient who performs MP practice can achieve best results because of strong effect of MP practice on balance training.

[Ag3(m-Hbtc)(m-H2btc)]n (H3btc = 1,3,5-benzenetricarboxylic acid) (1), a new rarely reported Ag(I) three-dimensional coordination polymer with several Ag-Ag bonds, has been synthesized, characterized by elemental analysis and IR spectroscopy and its structure determined by single-crystal X-ray diffraction. The thermal stability of compound 1 was studied by thermal gravimetric and differential thermal analyses. The single crystal X-ray analysis of compound 1 shows that the complex consists of [Ag3(m-Hbtc)(m-H2btc)] subunits containing four different Ag environments. The results of studies of the stoichiometry and complex formation in methanol solution supported their solid state stoichiometry.

Background: Virologic parameters and liver enzymes are generally measured to determine prognosis of hepatitis B. The present study was conducted to determine the liver function indices and sonographic findings of chronic hepatitis B (CHB) in HBeAg-negative and HBeAg-positive patients.Materials and Methods: This Historical Cohort study was conducted on 234 patients with active CHB (117 HBeAg-negative and 117 HBeAg-positive) in 2007. The patients who were referred to Hepatitis Clinic of Blood Transfusion Organization were included in the study.Results: One hundred eighty patients were male, majority of them were resident of Sistan province and married. The mean age of patients with CHB HBeAg-negative was more than patient with CHB HBeAg-positive (38.03±11.1 vs 28.77±9.8). There were no significant difference in Bilirubin, Albumin, ALT and AST levels and also PT between the two groups, but a significant difference in sonographic findings of liver was demonstrated between two groups. Conclusion: Based on our results, it is recommended to use other diagnostic indices including virologic parameters and histopathology to distinguish CHB patients.

In this study, ZnO nanopowders and ZnO doped with metals (Cu, Ag- doped ZnO) and (Cd, Ag- doped ZnO) were synthesized by the sol-gel method in order to investigation on the codoping effect on the band gap and photocatalytic activity of ZnO. The synthesized samples are characterized by IR spectroscopy technique. Moreover, the absorption coefficients of the ZnO, Ag-Cd-ZnO and Ag-Cu-ZnO were analyzed by Tauc’s approach and the direct band gap is calculated. According to these results, compared with pure ZnO, the band gap of the Ag-Cd-ZnO and Ag-Cu-ZnO decreases and it is dependent on the content of dopands. Furthermore, photocatalytic activity for all samples was investigated under UV irradiation in an aqueous medium. The results have been revealed that Ag-Cd-ZnO and Ag-Cu-ZnO shown more photocatalytic actitivity in comparison with pure ZnO.