[Gene editing technology and its recent progress in disease therapy].

Gene editing is a genetic manipulation technology which utilizes bacterial nucleases to accurately and efficiently modify DNA or RNA. Gene editing has broad applications in basic research, breeding, and drug screening, and it is gaining validity and applicability to the therapy of many diseases especially genetic-based disease. In this review, we summarize the development of gene editing technology, its different strategies and applications in the treatment of disease, and the research of gene editing therapy for genetic diseases (including base editor and epigenetic regulation) in the treatment of disorders and diseases of the blood system, liver, muscle and nervous system.

Effect of posture on (13)C-urea breath test in partial gastrectomy patients.

Aim: To investigate whether posture affects the accuracy of (13)C-urea breath test ((13)C-UBT) for Helicobacter pylori (H. pylori) detection in partial gastrectomy patients.

Methods: We studied 156 consecutive residual stomach patients, including 76 with H.

Clinical research on liver reserve function by 13C-phenylalanine breath test in aged patients with chronic liver diseases.

Background: The objective of this study was to investigate whether the 13C-phenylalanine breath test could be useful for the evaluation of hepatic function in elderly volunteers and patients with chronic hepatitis B and liver cirrhosis.

Methods: L-[1-13C] phenylalanine was administered orally at a dose of 100 mg to 55 elderly patients with liver cirrhosis, 30 patients with chronic hepatitis B and 38 elderly healthy subjects. The breath test was performed at 8 different time points (0, 10, 20, 30, 45, 60, 90, 120 min) to obtain the values of Delta over baseline, percentage 13CO2 exhalation rate and cumulative excretion (Cum).