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Experimental Studies on Inhibitory Effects of Radix Peucedani on Hypoxic Pulmonary Hypertension in Rats

XI Si-chua

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Abstract

Light microscopic and morphometric methods along with the measurement of right ventricular systolic pressure(RVSP) and right ventricle hypertrophy index(RBHI) were performed by the authors in studying the inhibitory effects of Radix Peucedani(RP) on structural remodeling of intraacinar pulmonary arteries(IAPA) and pulmonary hypertension(PHT) in hypoxic rats.The results showed that,RP could not only antagonize IAPA contraction caused by hypoxia and lower the resistance of pulmonary circulation,inhibit the cell proliferation and hypertrophy of adventitial cells of pulmonary artery,but also reverse the change in structure and function of pulmonary artery.It suggests that RA plays a key role in inhibiting hypoxic structural remodeling of IAPA and pulmonary hypertension.

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What this paper is about

Light microscopic and morphometric methods along with the measurement of right ventricular systolic pressure(RVSP) and right ventricle hypertrophy index(RBHI) were performed by the authors in studying the inhibitory effects of Radix Peucedani(RP) on structural remodeling of intraacinar pulmonary arteries(IAPA) and pulmonary hypertension(PHT) in hypoxic rats.The results showed that,RP could not only antagonize IAPA contraction caused by hypoxia and lower the resistance of pulmonary circulation,inhibit the cell proliferation and hypertrophy of adventitial cells of pulmonary artery,but also reverse the change in structure and function of pulmonary artery.It suggests that RA plays a key role in inhibiting hypoxic structural remodeling of IAPA and pulmonary hypertension.

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Available abstract

Light microscopic and morphometric methods along with the measurement of right ventricular systolic pressure(RVSP) and right ventricle hypertrophy index(RBHI) were performed by the authors in studying the inhibitory effects of Radix Peucedani(RP) on structural remodeling of intraacinar pulmonary arteries(IAPA) and pulmonary hypertension(PHT) in hypoxic rats.The results showed that,RP could not only antagonize IAPA contraction caused by hypoxia and lower the resistance of pulmonary circulation,inhibit the cell proliferation and hypertrophy of adventitial cells of pulmonary artery,but also reverse the change in structure and function of pulmonary artery.It suggests that RA plays a key role in inhibiting hypoxic structural remodeling of IAPA and pulmonary hypertension.

Key concepts: Right ventricular hypertrophy, Pulmonary artery, Pulmonary hypertension, Ventricle, Hypoxia (environmental), Medicine, Cardiology, Muscle hypertrophy

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