Endothelial dysfunction is a characteristic of many vascular related diseases such as hypertension. Peroxisome proliferator activated receptor gamma, coactivator 1α (PGC-1α) is a unique stress sensor that largely acts to promote adaptive responses. Therefore, we sought to define the role of endothelial PGC-1α in vascular function using mice with endothelial specific loss of function (PGC-1α EC ...

Hypoxia-inducible factor-1α (HIF-1α) plays a critical role in immune and inflammatory responses and is important in controlling a variety of processes in monocytes and macrophages. However, very little information is available about the functions of HIF-1α in fish monocytes/macrophages (MO/MФ). In this study, the cDNA sequence of the mudskipper (Boleophthalmus pectinirostris) HIF-1α gene (BpHIF...

Pulmonary fibrosis (PF) is one of the most prevalent causes of death following paraquat (PQ) poisoning. As demonstrated in previous studies by the present authors, epithelial-to-mesenchymal transition (EMT) is associated with PQ-induced PF. In addition, hypoxia-inducible factor-1α (HIF-1α) and lysyl oxidase (LOX) promote EMT following PQ poisoning. However, the association between HIF-1α- and L...

Stromal cell-derived factor-1α (SDF-1α) is a well-characterized chemokine that mobilizes stem cells homing to the ischemic heart, which is beneficial for cardiac regeneration. However, clinically administered native SDF-1α diffuses quickly, thus decreasing its local concentration, and results in side effects. Thus, a controlled release system for SDF-1α is required to produce an effective local...

the prevalence of type 2 diabetes mellitus (t2dm) is rising dramatically in the middle east, especially in the islamic republic of iran, but the genetic basis of type 2 diabetes in iran is poorly understood. polymorphisms of hepatocyte nuclear factor-1α (hnf-1α) and glucagon-like peptide-1 receptor (glp-1r) genes showed association with type 2 diabetes in several ethnic groups. in this study, w...

Objective This study aimed to investigate the effects of hypoxia-inducible factor-1α (HIF-1α), factor-2α (HIF-2α), and erythroferrone (ERFE) on hepcidin in patients with chronic kidney disease (CKD) stages 3–5 renal anemia. Methods A total 90 CKD anemia were selected for at Nephrology Department Fujian Provincial People’s Hospital divided into three groups, according stage, while another 30 hea...

Hypoxia-inducible factor 1 (HIF-1) is a transcription factor that mediates adaptive responses to oxygen deprivation. In addition, the HIF-1α subunit has a nontranscriptional role as a negative regulator of DNA replication through effects on minichromosome maintenance helicase loading and activation. However, some cell types continue to replicate under hypoxic conditions. The mechanism by which ...

Mitochondria are the main consumers of molecular O2 in a cell as well as an abundant source of reactive oxygen species (ROS). Both, molecular oxygen and ROS are powerful regulators of the hypoxia-inducible factor-1α-subunit (HIF-α). While a number of mechanisms in the oxygen-dependent HIF-α regulation are quite well known, the view with respect to mitochondria is less clear. Several approaches ...

Background. The radioresistance of glioma stem cells (GSCs) is related to some microRNAs (miRs) generated by radiation. This study aimed investigate the effects miR-17-5p and miR-130b-3p on radiosensitivity GSCs. Methods. expressions in SU3 SU3-5R were determined. transfected with or mimics inhibitors used determine cell viability after irradiation as well examine changes supernatant glucose, i...

Overexpression of HIF-1α, a transcription factor responsive to hypoxia, is frequently observed in malignant tumors, which sometimes show resistance to chemotherapy and radiation therapy. Consequently, decrease of HIF-1α through virotherapy offers a logical strategy for the treatment of aggressive tumors. In this study, we found that infection with the oncolytic H-1 parvovirus decreased HIF-1α p...