Alopecia areata is not associated with Helicobacter pylori.

Background: Alopecia areata (AA) is an immune-mediated form of hair loss that occurs in all ethnic groups, ages, and both sexes. Helicobacter pylori has been associated with many extra-digestive dermatological conditions. The causal relation between alopecia areata and Helicobacter pylori is discussed in this study.

Semen parameters and hormonal profile in obese fertile and infertile males.

Objective: To study the changes in semen parameters, gonadotropic and sex hormones, and serum leptin in obese fertile and infertile oligozoospermic men.

Design: Prospective.

Setting: University hospital.

Is Helicobacter pylori infection associated with alopecia areata?

Background: Alopecia areata (AA) is an immune-mediated form of hair loss that occurs in all ethnic groups, ages, and both sexes. Helicobacter pylori has been associated with certain extra-digestive dermatological conditions, including chronic urticaria, rosacea, Schönlein-Henoch purpura, Sweet syndrome, systemic sclerosis, and atopic dermatitis.

Objective: The causal relation between alopecia areata and H.