Title

Pathological and Biochemical Analysis of Dilated Cardiomyopathy of Broiler Chickens An Animal Model

Authors

Der-Jinn Wu;James A Lin;YungTsung Chin;Chin-Chang Cheng;Chin-Lin Shyu;Kwo-Chang Ueng;Chih-Yang Huang

Key Words

cardiomyopathy ; extraceHular matrix ; heart failure ; metafloproteinases ; ultrasound

PublicationName

The Chinese Journal of Physiology

Volume or Term/Year and Month of Publication

46卷1期(2003 / 03 / 31)

Page #

19 - 26

Content Language

英文

English Abstract

Forty-seven birds (M/F=33/14) with natural outbreak dilated cardiomyopathy (DCM) of right ventricle (RV) and 33 birds with artificially cool4nduced DCM hearts were studied, clinically, 20 severe and 13 mild DCM cases were induced during five weeks and the peak morbidity was in the 2nd week, The progressive dilatation of RV and hypokinesis of septum was shown by echocardiography. At autopsy, the ratio of heart weights to the body weights was increased, the ratio of RV weight to the total ventricle significantly increased, especially in the severe DCM cases (P<0.05). The RV was dilated and the wall thickness was increased and finally both RV and left ventricle (LV) were markedly dilated and the septum became thinner. The struts, weave and coil demonstrated by silver impregnation stain were fragmented, dissociated and overstretched. The promatrix metalloproteinases (MMP)-2, -9 and active MlP2 were markedly increased in natural outbreak DCM cases, especially in the RV (P<0, 05). The proMMP-2 and active MMP-2 was increased in the cool induced DCM cases, especially in the RV of severe DCM (P<0.05). These indicated that both the natural outbreak and the artificially induced DCM of broiler chickens are ideal DCM animal models.

Topic Category 醫藥衛生 > 基礎醫學
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Times Cited
  1. Tung, Kwong-Chung,Lin, Nai-Nu,Lin, James A,Gong, Chi-Li,Fu, Yun-Ching,Chiu, Yung-Tsung,Cheng, Ching-Chang,Chen, Ying-Tsung(2008).Activated Matrix Metalloproteinase and Disrupted Myocardial Collagen Matrix in Increased Sympathetic Activity Following Stimulation of Dorsal Medulla in the Vagotomized Feline Model.Chinese Journal of Physiology,51(1),7-12.
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