Atypical Locations of Renal Cell Carcinoma Metastases to the Pancreas and Duodenum.

Introduction: Pancreatic tumors account for a small percentage of all malignancies. Most of them are primary and originate from cells of the exocrine pancreas. The remaining primary changes are neuroendocrine tumors.

Detection and analysis of spin signal in spin-labeled poly(l-lysine).

In this paper, the authors present the study of spin-labeled poly(l-lysine) biological molecules (polypeptides) using electron paramagnetic resonance, atomic force microscopy, and electron spin noise-scanning tunneling microscopy. In the presented studies, the authors were able to obtain the information about the local distribution of the spin signal emission, and they registered the spectra for the selected area with nanometer resolution. The preparation method of spin-labeled biopolymer, experimental setup, and the procedure of calibration are also described in detail.

Plasma glucose after stomach or jejunum glucose infusion in Roux-en-Y gastric bypass patients--a possible implication for early satiety mechanism.

Background: Morbidly obese patients undergoing gastric bypass surgery experience early satiety soon after the surgery; the mechanism of this effect is poorly understood. As blood glucose concentration plays a role in appetite regulation in humans, we hypothesized that after gastric bypass surgery glucose absorbed mainly in jejunum leads to a greater rise in plasma glucose that if it is ingested in stomach.

Material And Methods: 24 non-diabetes morbidly obese patients (15 women, 9 men, mean age [± SD] 35.