Infeccions as the etiology for obesity.

The role of infection on obesity development has been questioned since the early 1980's. Several studies on animals have shown that physiopathologic mechanisms through which infections can produce obesity do exist. At least eight types of obesity-inducing viruses have been identified in animals, especially poultry and mice.

The cerebrospinal fluid/serum leptin ratio during pharmacological therapy for obesity.

The aim of the present study was to evaluate the cerebrospinal fluid (CSF)/serum leptin ratio during pharmacological therapy for obesity with centrally and peripherally acting drugs. Thirty-one obese women (mean age, 32.3 +/- 10 yr; body mass index, 38.