Free fatty acid release from human adipose tissue in relation to obesity -- effect of isoprenaline.

The capacity to release non-esterified acids and glycerol from the abdominal subcutaneous adipose tissue into a medium containing different concentrations of isoprenaline was studied in 21 adults with different body weight (14 obese, 7 controls). The obese had a significantly lower maximum adipokinetic capacity (expressed as pD2) than controls. The significant decrease in pD2 in the obese was found to depend on the stabilization of the weight while the dynamic pD2 stage values of the obese did not differ from those of controls.

The effect of mazindol on metabolic and regulatory changes in obese women during weight reduction.

The effect of mazindol (1 mg/day) on some metabolic and regulatory values was investigated in ten adult obese women and compared with the same number of controls during weight reduction in hospital (a five-times repeated cycle of 5 days complete starvation and 3 days on a 500 kcal(2.1MJ/day diet.) Mazindol caused a rise of hydroxyacyl CoA dehydrogenase in striated muscle by 70 per cent and a marked decline in malic dehydrogenase.

Some adrenergic beta-blocking agents affecting lipolysis in human adipose tissue in vitro.

Antagonistic actions of beta-blocking drugs on isoproterenol-induced lipolysis were studied in human omental adipose tissue. Competitive interaciton characterized by the following pA2 values was found: propranolol 8.7; trimepranol 8.