Main Page
Faculty Deanship
Dean
Health Empowerment Unit
Strategic Planning Unit
Development and Quality Unit
Medical and Bioethics Unit
Vice Dean for Graduate Studies and Research
Vice Dean for Female Section
Vice dean for Academic Affairs
Examination and Assessment Unit
Internship and Alumni Unit
Student Research Unit
E-learning Unit
Student Mentoring and Support Unit
Community Service Unit
Talent and Creativity Care Unit
Continuing Education Unit
Neuroscience Research Unit
Vice Deanship of Clinical Affairs / Administration
Organizational Structure
Departments
Basic Sciences
Department of Anatomy
Department of Pharmacology
Department of Pathology
Department of Microbiology and Medical Parasitolog
Deparment of Clinical Biochemistry
Department of Physiology
Department of Medical Genetics
Clinical Sciences
Department of Otorhinolaryngology
Department of Obstetrics and Gynecology
Department of Hematology
Department of Medical Education
Department of Anesthesia
Department of Family Medicine
Department of Community Medicine
Department of Surgery
Department of Orthopedic Surgery
Department of ophthalmology
Department of Radiology
Department of Internal Medicine
Department of Pediatrics
Department of Emergency Medicine
Department of Urology
Department of Dermatology
Latest News
عربي
English
About
Admission
Academic
Research and Innovations
University Life
E-Services
Search
Faculty of Medicine
Document Details
Document Type
:
Article In Journal
Document Title
:
Glutamine metabolism in lymphocytes of the rat
Glutamine metabolism in lymphocytes of the rat
Subject
:
Biochemistry
Document Language
:
English
Abstract
:
The metabolism of glutamine in resting and concanavalin-A-stimulated lymphocytes was investigated. In incubated lymphocytes isolated from rat mesenteric lymph nodes, the rates of oxygen and glutamine utilization and that of aspartate production were approximately linear with respect to time for 60 min, and the concentrations of adenine nucleotides plus the ATP/ADP or ATP/AMP concentration ratios remained approximately constant for 90 min. The major end products of glutamine metabolism were glutamate, aspartate and ammonia: the carbon from glutamine may contribute about 30% to respiration. When both glucose and glutamine were presented to the cells, the rates of utilization of both substances increased. Evidence was obtained that the stimulation of glycolysis by glutamine could be due, in part, to an activation of 6-phosphofructokinase. Starvation of the donor animal increased the rate of glutamine utilization. The phosphoenolpyruvate carboxykinase inhibitor mercaptopicolinate decreased the rate of glutamine utilization by 28%; the rates of accumulation of glutamate and ammonia were decreased, whereas those of lactate, aspartate and malate were increased. The mitogen concanavalin A increased the rate of glutamine utilization (by about 51%). The rate of [3H]thymidine incorporation into DNA caused by concanavalin A in cultured lymphocytes was very low in the absence of glutamine; it was increased about 4-fold at 1 microM-glutamine and was maximal at 0.3 mM-glutamine; neither other amino acids nor ammonia could replace glutamine
ISSN
:
0264-6021
Journal Name
:
The Biochemical Journal
Volume
:
212
Issue Number
:
3
Publishing Year
:
1403 AH
1983 AD
Article Type
:
Article
Added Date
:
Monday, November 28, 2011
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
محمد العرضاوي
Ardawi, Mohammed
Investigator
Doctorate
Files
File Name
Type
Description
31389.pdf
pdf
Back To Researches Page