conclusions combination therapy with tretinoin plus topical corticosteroids is safe and effective and provides an alternative in the treatment of patients with vitiligo. objectives recent studies suggest that administration of topical tretinoin, with a corticosteroid, diminishes skin atrophy without impacting the steroid’s anti-inflammatory effects. patients and methods a placebo-controlled, pa...

background previous studies using pegylated interferon (peg-ifn) and ribavirin (rbv) combination therapy suggested that patients with hepatitis c virus (hcv) genotype 1 and low pretreatment hcv rna level who achieved rapid virological response (rvr) can be treated for 24 weeks without compromising sustained virological response (svr) rate. objectives the current study aimed to investigate the e...

Accumulation of gene changes and chromosomal instability in response to cellular DNA damage lead to cancer. DNA damage induces cell cycle checkpoints pathways. Checkpoints regulate DNA replication and cell cycle progression, chromatin restructuring, and apoptosis. Checkpoint kinase 2 (chk2) is activated in response to DNA lesions. ATM phosphorylate chk2. The activated Chk2 kinase can phosphoryl...