Viral DNA was detected in 45.3% of the patients. Most patients tested positive for CMV (25.4%) or BK (21.2%). Although some differences frequency and type viruses were observed between bone marrow solid organ transplant, no association viral load, virus disease transplant adult pediatric recipients found. Analyzing all together, more frequently serum with symptoms complications.

background : hepatitis includes a wide range of clinical and pathological conditions. the beta-2 microglobulin (ãÿ2m), as part of thehla complex, is responsible for transmission of viral antigens on the surface of liver cells. the purpose of this study is to determine the concentration of salivary ãÿ2m as a marker of viral proliferation in subjects who are hbsag + , hbv dna pcr + compared with ...

Background: Breast cancer is the malignancy in humans and other mammals. Several risk factors are involved in their appearance such as higher hormone levels and obesity. Identification of a mouse mammary tumor virus supports a viral etiology for breast tumors in animals. Viruses have been implicated in the development of various cancers, but viral induction for formation breast cancer is contro...

The intracellular replication of MVL51, a group L1 mycoplasmavirus, was investigated. The single-stranded parental DNA was found to enter the cell and become converted to double-stranded DNA. This replicated to yield additional double-stranded DNA molecules. The parental viral DNA was found to leave the replication complex and become associated with large molecular weight DNA not involved with ...

background although certain hbv mutations are known to affect the expression of hepatitis e antigen, their association with hbv viral level or clinical outcomes is less clear. objectives we evaluated associations between different mutations in the basal core promoter (bcp) and pre-core (pc) regions of hbv genome and subsequent changes in hbv viral dna level over seven years in a population of u...

The integrase (IN) protein of the human immunodeficiency virus (HIV) mediates two distinct reactions: (i) specific removal of two nucleotides from the 3' ends of the viral DNA and (ii) integration of the viral DNA into target DNA. Although IN discriminates between specific (viral) DNA and nonspecific DNA in physical in vitro assays, a sequence-specific DNA-binding domain could not be identified...

Encapsidation of host restriction factor APOBEC3G (A3G) into vif-deficient human immunodeficiency virus type 1 (HIV-1) blocks virus replication at least partly by C-to-U deamination of viral minus-strand DNA, resulting in G-to-A hypermutation. A3G may also inhibit HIV-1 replication by reducing viral DNA synthesis and inducing viral DNA degradation. To gain further insight into the mechanisms of...

Three species of unintegrated viral DNAs were found in permissive cells infected with baboon type C virus. The major species was a 9.0-kilobase (kb) linear DNA that was infectious. A restriction endonuclease map of this DNA was constructed and oriented with respect to the viral RNA. The linear DNA had a 0.6-kb sequence repeated at each terminus. These terminal repeat sequences were required for...