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[Prophylactic effect of ambroxol on acute hydrochloric acid aspiration - induced lung injury].
Zhongguo Wei Zhong Bing Ji Jiu Yi Xue. 2005 Jun; 17(6):364-6.ZW

Abstract

OBJECTIVE

To evaluate the protective effect of ambroxol, a muco-active drug, on acute hydrochloric acid-induced lung injury in rats.

METHODS

Thirty pathogen-free SD rats were randomly divided into three groups: group A (n=10) and group B (n=10) were injected normal saline (NS) intraperitoneally (6.7 ml/kg), and group C with ambroxol (50 mg/kg), once a day for 3 consecutive days. Then animals received in tracheal instillation of NS (group A, pH 5.3, 1.2 ml/kg) or hydrochloric acid/NS (group B and C, pH 1.25, 1.2 ml/kg). Five hours after instillation of the injury vehicle, the arterial gas was determined, and the extent of lung injury was assessed by measuring the ratio of wet to dry weight (W/D) and evaluation of pathological change in lung tissue.

RESULTS

(1)Partial pressure of oxygen in arterial blood (PaO(2)) was significantly lower in group B than in groups A and C, although pH and partial pressure of carbon dioxide in arterial blood (PaCO(2)) in three groups showed little difference (all P<0.01). (2)The W/D was the highest in group B and the lowest in group A. (3)Severe acute lung injuries were detected in group B by pathological examination, the extent of injury was less in group C than in group B, but more severe than in group A (group A vs. B and B vs. C in mean pathologic score, P<0.01 and P<0.05, respectively).

CONCLUSION

Hydrochloric-acid aspiration may induce an acute and diffuse lung injury, with manifestations of hyperpnea, lower PaO(2) and severe pathological changes in lung tissues. Ambroxol may have a protective effect against lung injury induced by hydrochloric acid.

Authors+Show Affiliations

Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article
Research Support, Non-U.S. Gov't

Language

chi

PubMed ID

15970105

Citation

Zhao, Shuang-ping, et al. "[Prophylactic Effect of Ambroxol On Acute Hydrochloric Acid Aspiration - Induced Lung Injury]." Zhongguo Wei Zhong Bing Ji Jiu Yi Xue = Chinese Critical Care Medicine = Zhongguo Weizhongbing Jijiuyixue, vol. 17, no. 6, 2005, pp. 364-6.
Zhao SP, Guo QL, Ai YH, et al. [Prophylactic effect of ambroxol on acute hydrochloric acid aspiration - induced lung injury]. Zhongguo Wei Zhong Bing Ji Jiu Yi Xue. 2005;17(6):364-6.
Zhao, S. P., Guo, Q. L., Ai, Y. H., Wang, R. K., Wang, E., & He, M. (2005). [Prophylactic effect of ambroxol on acute hydrochloric acid aspiration - induced lung injury]. Zhongguo Wei Zhong Bing Ji Jiu Yi Xue = Chinese Critical Care Medicine = Zhongguo Weizhongbing Jijiuyixue, 17(6), 364-6.
Zhao SP, et al. [Prophylactic Effect of Ambroxol On Acute Hydrochloric Acid Aspiration - Induced Lung Injury]. Zhongguo Wei Zhong Bing Ji Jiu Yi Xue. 2005;17(6):364-6. PubMed PMID: 15970105.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Prophylactic effect of ambroxol on acute hydrochloric acid aspiration - induced lung injury]. AU - Zhao,Shuang-ping, AU - Guo,Qu-lian, AU - Ai,Yu-hang, AU - Wang,Rui-ke, AU - Wang,E, AU - He,Min, PY - 2005/6/23/pubmed PY - 2009/12/16/medline PY - 2005/6/23/entrez SP - 364 EP - 6 JF - Zhongguo wei zhong bing ji jiu yi xue = Chinese critical care medicine = Zhongguo weizhongbing jijiuyixue JO - Zhongguo Wei Zhong Bing Ji Jiu Yi Xue VL - 17 IS - 6 N2 - OBJECTIVE: To evaluate the protective effect of ambroxol, a muco-active drug, on acute hydrochloric acid-induced lung injury in rats. METHODS: Thirty pathogen-free SD rats were randomly divided into three groups: group A (n=10) and group B (n=10) were injected normal saline (NS) intraperitoneally (6.7 ml/kg), and group C with ambroxol (50 mg/kg), once a day for 3 consecutive days. Then animals received in tracheal instillation of NS (group A, pH 5.3, 1.2 ml/kg) or hydrochloric acid/NS (group B and C, pH 1.25, 1.2 ml/kg). Five hours after instillation of the injury vehicle, the arterial gas was determined, and the extent of lung injury was assessed by measuring the ratio of wet to dry weight (W/D) and evaluation of pathological change in lung tissue. RESULTS: (1)Partial pressure of oxygen in arterial blood (PaO(2)) was significantly lower in group B than in groups A and C, although pH and partial pressure of carbon dioxide in arterial blood (PaCO(2)) in three groups showed little difference (all P<0.01). (2)The W/D was the highest in group B and the lowest in group A. (3)Severe acute lung injuries were detected in group B by pathological examination, the extent of injury was less in group C than in group B, but more severe than in group A (group A vs. B and B vs. C in mean pathologic score, P<0.01 and P<0.05, respectively). CONCLUSION: Hydrochloric-acid aspiration may induce an acute and diffuse lung injury, with manifestations of hyperpnea, lower PaO(2) and severe pathological changes in lung tissues. Ambroxol may have a protective effect against lung injury induced by hydrochloric acid. SN - 1003-0603 UR - https://www.unboundmedicine.com/medline/citation/15970105/[Prophylactic_effect_of_ambroxol_on_acute_hydrochloric_acid_aspiration___induced_lung_injury]_ L2 - https://antibodies.cancer.gov/detail/CPTC-KRAS4B-1 DB - PRIME DP - Unbound Medicine ER -