The morphological and functional changes of the lungs in the early phase of blast injurywere analyzed and related quantitatively in rats with microcomputer-assisted morphometry.It wasfound that(1)significant or part...The morphological and functional changes of the lungs in the early phase of blast injurywere analyzed and related quantitatively in rats with microcomputer-assisted morphometry.It wasfound that(1)significant or partial correlation exists between stereological and functional indices,(2)changes of the endothelium and epithelium rather than the interstitium contribute to the increase ofharmonic and arithmetic thickness(T<sub>ht</sub>,T<sub>at</sub>)of the air-blood barrier,and(3)the regression equa-tions are as follows:(a)PaO<sub>2</sub>=3.56+1.62DL(O<sub>2</sub>),r=0.678,P=0.032:(b)PaO<sub>2</sub>=2.99+3.49DL(O<sub>2</sub>)-0.0005S<sub>A</sub>+0.003S<sub>c</sub>-38.2V<sub>c</sub>-0.257T<sub>ap</sub>-0.028Dt(O<sub>2</sub>),r<sub>y</sub>=0.9999,P=0.008;(c)PaCO<sub>2</sub>=7.69+0.0001S<sub>A</sub>-4.35T<sub>at</sub>+19.7T<sub>ht</sub>-46.2T<sub>hp</sub>-4.4T<sub>aen</sub>-5.87T<sub>aep</sub>,r<sub>y</sub>=0.9999,P=0.014;(d)pH=3.068+0.0005S<sub>A</sub>-1.79T<sub>at</sub>+12.2T<sub>ht</sub>-50.8T<sub>hp</sub>-2.52T<sub>aint</sub>+0.69DL(O<sub>2</sub>),r<sub>y</sub>=0.9999,P=0.10.The significance and application of stereology in theestablishment of the quantitative relationship between morphological and functional indices are dis-cussed.Mathematical models to relate morphometric parameters to functional changes are possible.展开更多
基金This study was supported by the National Natural Sciences Foundation of China
文摘The morphological and functional changes of the lungs in the early phase of blast injurywere analyzed and related quantitatively in rats with microcomputer-assisted morphometry.It wasfound that(1)significant or partial correlation exists between stereological and functional indices,(2)changes of the endothelium and epithelium rather than the interstitium contribute to the increase ofharmonic and arithmetic thickness(T<sub>ht</sub>,T<sub>at</sub>)of the air-blood barrier,and(3)the regression equa-tions are as follows:(a)PaO<sub>2</sub>=3.56+1.62DL(O<sub>2</sub>),r=0.678,P=0.032:(b)PaO<sub>2</sub>=2.99+3.49DL(O<sub>2</sub>)-0.0005S<sub>A</sub>+0.003S<sub>c</sub>-38.2V<sub>c</sub>-0.257T<sub>ap</sub>-0.028Dt(O<sub>2</sub>),r<sub>y</sub>=0.9999,P=0.008;(c)PaCO<sub>2</sub>=7.69+0.0001S<sub>A</sub>-4.35T<sub>at</sub>+19.7T<sub>ht</sub>-46.2T<sub>hp</sub>-4.4T<sub>aen</sub>-5.87T<sub>aep</sub>,r<sub>y</sub>=0.9999,P=0.014;(d)pH=3.068+0.0005S<sub>A</sub>-1.79T<sub>at</sub>+12.2T<sub>ht</sub>-50.8T<sub>hp</sub>-2.52T<sub>aint</sub>+0.69DL(O<sub>2</sub>),r<sub>y</sub>=0.9999,P=0.10.The significance and application of stereology in theestablishment of the quantitative relationship between morphological and functional indices are dis-cussed.Mathematical models to relate morphometric parameters to functional changes are possible.