1.Clinical value of serum levels of soluble intercellular adhesion molecule-1 and C-reactive protein and B-type natrluretic peptide in patients with congestive heart failure
Chinese Journal of Postgraduates of Medicine 2012;35(7):20-22
ObjectiveTo study the value of serum soluble intercellular adhesion molecule-1 (sICAM-1),B-type natriuretic peptide (BNP) and C-reactive protein (CRP) levels detection on assessment of illness in patients with congestive heart failure.MethodsSixty-three patients with congestive heart failure were involved in this study.The levels of serum sICAM-1,BNP and CRP were compared in patients with different NYHA cardiac function classification before and after treatment.ResultsThe levels of serum sICAM-1,BNP and CRP in NYHA cardiac function classification ≥ Ⅲ grade patients were significantly higher than those in NYHA cardiac function classification < Ⅲ grade patients[ (392.6 ± 73.3) μ g/L vs.(212.6 ± 83.4) μ g/L,( 1992.5 ±1173.7) ng/L vs.(512.6 ± 283.2) ng/L,(49.3 ± 33.5 ) mg/L vs.(6.1 ± 3.6) mg/L] (P < 0.01 ).The levels of serum sICAM-1,BNP and CRP after treatment were significantly decreased compared with those before treatment [ ( 168.9 ± 52.5) μ g/L vs.(362.8 ± 123.1 ) μ g/L,(68.6 ± 38.4) ng/L vs.(1470.9± 1460.1) ng/L,(3.6±2.8) mg/L vs.(34.1 ±29.8) mg/L] (P < 0.01).Conclusion Serum sICAM-1,BNP and CRP levels are positively related with illness,and serum sICAM-1,BNP and CRP levels may be judged as an index assessing treatment effect and prognosis.
2.Experimental study on corneal biomechanical properties of rabbit eye after LASIK.
Aiyu WANG ; Weiyi CHEN ; Rui HE ; Xiaojun WANG ; Chunsheng LIU
Journal of Biomedical Engineering 2009;26(2):323-326
The biomechanical properties of 21 white New Zealand rabbits' corneas after Laser in situ keratomileusis (LASIK) were tested by use of one-dimension tensile test and creep test in the INSTRON 5544 mechanical machine. The cornea-related data from the experiments of one-dimension tensile test and creep test for an hour were obtained; a standard linear solid model was adopted to analyse the data, and the least square method was used to fit the viscoelastical coefficients of creep experiment on different corneas. We noticed there was certain difference between the LASIK groups and the normal group in respect to the corneal modulus of elasticity, the stiffness coefficients diminished with the increase of ablation depth; the anti-tensile ability of corneas also displayed some reduction. These findings indicate that the deeper the ablation goes, the easier will be the deformation after LASIK.
Animals
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Biomechanical Phenomena
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Cornea
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physiopathology
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surgery
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Elasticity
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Keratomileusis, Laser In Situ
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methods
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Lasers, Excimer
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therapeutic use
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Rabbits