Interleukin-15 and Tumor Necrosis Factor- in Iraqi Patients with Alopecia Areata.

Background: Alopecia areata (AA) is a common form of noncicatricial hair loss of unknown cause, affecting 0.1-0.2% of the general population.

Effect of HLA on development of asthma.

Background: Asthma is a disease characterized by a chronic inflammation of the airways caused by the interaction of genetic susceptibility with environmental factors. Inflammation and remodeling are critical components of asthma. It is shown that many genes are involved in the pathogenesis of asthma.

The Effect of HLA-DRB1 on Cholecystitis.

Background: Cholecystitis is one of the major digestive diseases. Its prevalence is particularly high in some populations. Significant risk factors associated with cholecystitis include age, sex, obesity, diet, parity and type 2 diabetes.