31. "Este tipo de alopecias es casi siempre irreversible, " afirmo Rodriguez. 32. Most have alopecia areata, a disease of the autoimmune system that causes hair loss. 33. Endogenous retinoids metabolic defect is a key part of the pathogenesis of the alopecia areata. 34. Alopecia areata occurs in people who are otherwise healthy and have no other skin disorders.35. More rarely, the side-effects alopecia and osteoporosis can occur with chronic use. 36. A pattern in androgenic alopecia ( male balding ) has been named after the character. 37. The majority of patients with cicatricial alopecia have no family history of a similar condition. 38. This CCCA pattern is a potential alopecia mimic that can be confused for androgenetic alopecia. 39. This CCCA pattern is a potential alopecia mimic that can be confused for androgenetic alopecia . 40. :Minoxidil is only proven effective for one kind of hair loss, androgenic alopecia .