Effects of Co-administration of L-arginine and ASA on platelet aggregation and gastric damage
- VernacularTitle:L-精氨酸与小剂量阿司匹林共同使用增强抑制血小板聚集功效以及对胃粘膜保护作用的研究
- Author:
Ruomei QI
;
Jing YANG
;
Tao OUYANG
;
Limin BAO
- Publication Type:Journal Article
- Keywords:
L-arginine;
aspirin;
platelet aggregation;
gastric lesion
- From:
Chinese Pharmacological Bulletin
2003;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Aim To investigate the effects of co-administration of L-Arginine (L-Arg) and aspirin (ASA) on platelet aggregation in vitro and gastric damage in vivo. Methods Citrate anti-coagulation venous blood was obtained from rabbits. The blood was centrifuged at 1 100 r?min-1 for 10 min to obtain platelet-rich plasma (PRP). 500 ?l of PRP was poured into a cuvette, and then incubated with various concentrations of L-Arg and a small dose of ASA for 5 min. Platelet aggregation was assayed with Chrono-Log platelet aggregometer by changes in light transmission of platelet suspensions. After co-administration of L-Arg and ASA for 7days to rats, gastric damages were induced by water immersion restraint stress or reserpine. Results Co-administrateion of L-Arg and a small dose of ASA strengthened the inhibitory effects on platelet aggregation. Platelet aggregation rate was 6.6% using 3 mmol?L-1 of L-Arg and small dose of ASA. Platelet aggregation rate was 93.9% using the same concentration of L-Arg alone. 1 g?kg-1 of L-Arg and 0.1 g?kg-1ofASA co-administration for 7 days,significantly reduced gastric damage induced by water immersion restraint stress on Wistar rat. Similar results were observed on other animal experiments with gastric lesions induced by reserpine. The effects of L-Arg on prevention of gastric lesion were almost same as that of famotidine. Conclusion Co-administration of L-Arg and ASA can enhance the inhibitory effects on platelet aggregation and prevent gastric damage.
