[Treatment of primary malignant melanoma of the esophagus].

Objective: To present treatment of primary esophageal melanoma in a young patient, as well as review of modern data on this issue.

Material And Methods: We describe the results of treatment of a patient with primary melanoma of the esophagus. PubMed, SCOPUS, and elibrary databases were used for the review.

Structural Characterization of Fluorescent Proteins Using Tunable Femtosecond Stimulated Raman Spectroscopy.

The versatile functions of fluorescent proteins (FPs) as fluorescence biomarkers depend on their intrinsic chromophores interacting with the protein environment. Besides X-ray crystallography, vibrational spectroscopy represents a highly valuable tool for characterizing the chromophore structure and revealing the roles of chromophore-environment interactions. In this work, we aim to benchmark the ground-state vibrational signatures of a series of FPs with emission colors spanning from green, yellow, orange, to red, as well as the solvated model chromophores for some of these FPs, using wavelength-tunable femtosecond stimulated Raman spectroscopy (FSRS) in conjunction with quantum calculations.

[One-stage reconstructive jejunogastroplasty after previous multiple abdominal surgeries for left-sided diaphragm rupture complicated by gastric incarceration and necrosis].

Acute gastric necrosis is a rare event requiring organ resection. Delayed reconstruction is advisable in patients with peritonitis and sepsis. The most common complication of gastrectomy with reconstruction is failure of esophagojejunostomy and duodenal stump.

Non-occlusive mesenteric ischemia in reconstructive digestive tract surgery.

Objective: To analyze the mechanisms of non-occlusive mesenteric ischemia (NOMI) after digestive tract surgery.

Material And Methods: NOMI occurred in 10 (0.4%) patients after reconstructive digestive tract surgery between 2015 and 2021.

NanoFAST: structure-based design of a small fluorogen-activating protein with only 98 amino acids.

One of the essential characteristics of any tag used in bioscience and medical applications is its size. The larger the label, the more it may affect the studied object, and the more it may distort its behavior. In this paper, using NMR spectroscopy and X-ray crystallography, we have studied the structure of fluorogen-activating protein FAST both in the apo form and in complex with the fluorogen.