Effect of a glutamine-enriched diet on small bowel allograft during immunosuppressive therapy.
The effect of an orally administered glutamine-enriched elemental diet was examined following orthotopic small bowel allotransplantation using Brown Norway rats as donors and Lewis rats as recipients. The recipients was treated with FK 506 and randomized to receive glutamine-free elemental enteral diet solution (glutamine-free group), glutamine-enriched elemental diet solution containing 7500 mg of glutamine per 100 g diet (glutamine-enriched group) or standard chow (chow group) ad libitum for 7 d. There were no histological changes due to resection. Weight loss in the glutamine-enriched group was significantly less than that of the chow group. Both plasma glutamine levels and the ratio of glutamine to total amino acids in the homogenate of the graft mucosa of the glutamine-enriched group were significantly higher than those of the glutamine-fee group. Villous height and crypt depth were significantly decreased in the glutamine-free group. The BrdU labeling index in the graft epithelium and alkaline phosphatase activity in the homogenate of the graft mucosa of the glutamine-enriched group were significantly higher than those of the glutamine-free group. Therefore, orally administered glutamine-enriched elemental diet appears to promote the regeneration and differentiation of the graft mucosa following small bowel allotransplantation.
Yagi
M
M
Department of Surgery II, School of Medicine, Kanazawa University, Japan.
Sakamoto
K
K
Hasebe
K
K
Ito
H
H
Onishi
I
I
Tani
T
T
Hashimoto
T
T
Shimizu
K
K
Miwa
K
K
D000375:Aging / Q000378:metabolism; D000409:Alanine / Q000032:analysis / Q000097:blood / Q000378:metabolism; D000469:Alkaline Phosphatase / Q000032:analysis / Q000378:metabolism; D000641:Ammonia / Q000032:analysis / Q000097:blood / Q000378:metabolism; D000818:Animals; D001835:Body Weight / Q000187:drug effects / Q000502:physiology; D001973:Bromodeoxyuridine / Q000032:analysis; D002455:Cell Division / Q000502:physiology; D004032:Diet; D004847:Epithelial Cells / Q000166:cytology / Q000187:drug effects; D018698:Glutamic Acid / Q000097:blood / Q000378:metabolism; D005973:Glutamine / Q000008:administration & dosage / Q000097:blood / Q000494:pharmacology*; D007165:Immunosuppression Therapy / Q000379:methods*; D007166:Immunosuppressive Agents / Q000494:pharmacology; D007413:Intestinal Mucosa / Q000737:chemistry / Q000166:cytology / Q000187:drug effects; D007421:Intestine, Small / Q000737:chemistry / Q000187:drug effects* / Q000637:transplantation*; D008297:Male; D008871:Microvilli / Q000648:ultrastructure; D011897:Random Allocation; D051381:Rats; D011914:Rats, Inbred BN; D011917:Rats, Inbred Lew; D016559:Tacrolimus / Q000494:pharmacology; D013997:Time Factors; D014184:Transplantation, Homologous
D007166:Immunosuppressive Agents; D005973:Glutamine; D018698:Glutamic Acid; D000641:Ammonia; D000469:Alkaline Phosphatase; D001973:Bromodeoxyuridine; D000409:Alanine; D016559:Tacrolimus