The Effect of Tacrine on Functional Response of the Lower Oesophageal Sphincter Assessed by Endoscopic Luminal Impedance Planimetry in Experimental Pigs.

Tacrine is a centrally active non-competitive reversible acetylcholinesterase inhibitor. It also exerts antagonising activity against -methyl-D-aspartate receptors. Tacrine was approved for the treatment of Alzheimer's disease in 1993, but was withdrawn from clinical use in 2013 because of its hepatotoxicity and gastrointestinal side effects.

Endoscopic extraction of a loose Fobi ring in a patient with gastric bypass.

Obesity has become a worldwide problem with a growing incidence, posing a risk to health, especially for cardiovascular disease, diabetes, certain types of cancer, depres-sive syndrome, and others. The methods of obesity treatment are still expanding, in addition to diet and exercise measures, pharmacological, endoscopic and surgical treatment is possible. One of the commonly performed bariatric surgical procedures is the Roux-en-Y gastric bypass, which combines restrictive and malabsorptive effects.