检验医学
檢驗醫學
검험의학
LABORATORY MEDICINE
2014年
2期
125-129
,共5页
氧化应激%高同型半胱氨酸血症%对氧磷酯酶1
氧化應激%高同型半胱氨痠血癥%對氧燐酯酶1
양화응격%고동형반광안산혈증%대양린지매1
Oxidative stress%Hyperhomocysteinemia%Paraoxonase 1
目的:观察高同型半胱氨酸血症(HHcy)患者氧化应激指标的水平,并对其临床价值做初步评价。方法检测108例HHcy患者、106名健康体检者(正常对照组)循环谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)、对氧磷酯酶1(PON1)、一氧化氮合酶(NOS)活性及同型半胱氨酸(Hcy)、一氧化氮(NO)和丙二醛(MDA)水平。分析Hcy与GSH-Px、SOD、PON1、NOS、NO、MDA之间的相关性。结果 HHcy患者血浆MDA水平[(6.23±1.55)μmol/L]明显高于正常对照组[(4.14±1.13)μmol/L](P<0.01),而 GSH-Px [(189.3±25.1)U/L]、SOD[(77.3±20.5)NU/mL]、PON1[(133.6±23.9)kU/L]、NOS 活性[(25.3±2.9)U/mL]及NO [(68.3±10.1)μmol/L]水平低于正常对照组[(240.3±78.1)U/L、(89.2±24.8)NU/mL、(168.2±26.0)kU/L、(30.0±3.3)U/mL、(92.1±12.1)μmol/L](P均<0.01)。HHcy患者血浆Hcy与MDA呈正相关(r=0.72,P<0.01),与GSH-Px、SOD、PON1、NOS、NO呈明显负相关(r值分别为-0.60、-0.49、-0.51、-0.43、-0.50,P均<0.01)。结论 HHcy患者氧化应激增强可能与Hcy氧化过程中产生过多的过氧化物及活性氧、Hcy损伤NO/L-精氨酸系统及直接抵制抗氧化酶活性有关。Hcy可能通过增加氧化应激和降低抗氧化能力在动脉粥样硬化发生、发展中起重要的作用。
目的:觀察高同型半胱氨痠血癥(HHcy)患者氧化應激指標的水平,併對其臨床價值做初步評價。方法檢測108例HHcy患者、106名健康體檢者(正常對照組)循環穀胱甘肽過氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)、對氧燐酯酶1(PON1)、一氧化氮閤酶(NOS)活性及同型半胱氨痠(Hcy)、一氧化氮(NO)和丙二醛(MDA)水平。分析Hcy與GSH-Px、SOD、PON1、NOS、NO、MDA之間的相關性。結果 HHcy患者血漿MDA水平[(6.23±1.55)μmol/L]明顯高于正常對照組[(4.14±1.13)μmol/L](P<0.01),而 GSH-Px [(189.3±25.1)U/L]、SOD[(77.3±20.5)NU/mL]、PON1[(133.6±23.9)kU/L]、NOS 活性[(25.3±2.9)U/mL]及NO [(68.3±10.1)μmol/L]水平低于正常對照組[(240.3±78.1)U/L、(89.2±24.8)NU/mL、(168.2±26.0)kU/L、(30.0±3.3)U/mL、(92.1±12.1)μmol/L](P均<0.01)。HHcy患者血漿Hcy與MDA呈正相關(r=0.72,P<0.01),與GSH-Px、SOD、PON1、NOS、NO呈明顯負相關(r值分彆為-0.60、-0.49、-0.51、-0.43、-0.50,P均<0.01)。結論 HHcy患者氧化應激增彊可能與Hcy氧化過程中產生過多的過氧化物及活性氧、Hcy損傷NO/L-精氨痠繫統及直接牴製抗氧化酶活性有關。Hcy可能通過增加氧化應激和降低抗氧化能力在動脈粥樣硬化髮生、髮展中起重要的作用。
목적:관찰고동형반광안산혈증(HHcy)환자양화응격지표적수평,병대기림상개치주초보평개。방법검측108례HHcy환자、106명건강체검자(정상대조조)순배곡광감태과양화물매(GSH-Px)、초양화물기화매(SOD)、대양린지매1(PON1)、일양화담합매(NOS)활성급동형반광안산(Hcy)、일양화담(NO)화병이철(MDA)수평。분석Hcy여GSH-Px、SOD、PON1、NOS、NO、MDA지간적상관성。결과 HHcy환자혈장MDA수평[(6.23±1.55)μmol/L]명현고우정상대조조[(4.14±1.13)μmol/L](P<0.01),이 GSH-Px [(189.3±25.1)U/L]、SOD[(77.3±20.5)NU/mL]、PON1[(133.6±23.9)kU/L]、NOS 활성[(25.3±2.9)U/mL]급NO [(68.3±10.1)μmol/L]수평저우정상대조조[(240.3±78.1)U/L、(89.2±24.8)NU/mL、(168.2±26.0)kU/L、(30.0±3.3)U/mL、(92.1±12.1)μmol/L](P균<0.01)。HHcy환자혈장Hcy여MDA정정상관(r=0.72,P<0.01),여GSH-Px、SOD、PON1、NOS、NO정명현부상관(r치분별위-0.60、-0.49、-0.51、-0.43、-0.50,P균<0.01)。결론 HHcy환자양화응격증강가능여Hcy양화과정중산생과다적과양화물급활성양、Hcy손상NO/L-정안산계통급직접저제항양화매활성유관。Hcy가능통과증가양화응격화강저항양화능력재동맥죽양경화발생、발전중기중요적작용。
Objective To observe the parameters of oxidative stress in patients with hyperhomocysteinemia (HHcy),and to evaluate the clinical significance primarily.Methods A total of 1 08 HHcy patients and 1 06 healthy subjects (healthy control group ) were enrolled for determining the activities of glutathione peroxidase (GSH-Px ), superoxide dismutase (SOD),paraoxonase 1 (PON1 )and nitric oxide synthase (NOS)and the levels of homocysteine (Hcy),nitric oxide (NO)and malondialdehyde (MDA).The correlations of Hcy with GSH-Px,SOD,PON1 ,NOS, NO and MDA were analyzed.Results The MDA level in patients with HHcy [(6.23 ±1 .55)μmol/L]was higher than that in healthy control group [(4.1 4 ±1 .1 3)μmol/L](P<0.01 ).The GSH-Px [(1 89.3 ±25.1 )U/L],SOD [(77.3 ±20.5)NU/mL],PON1 [(133.6 ±23.9)kU/L],NOS [(25.3 ±2.9)U/mL]and NO [(68.3 ± 1 0.1 )μmol/L]in patients with HHcy were lower than those in healthy control group [(240.3 ±78.1 )U/L,(89.2 ± 24.8)NU/mL,(168.2 ±26.0)kU/L,(30.0 ±3.3)U/mL and (92.1 ±12.1 )μmol/L](P<0.01 ).The correlation of Hcy with MDA was positive,and negative with GSH-Px,SOD,PON1 ,NOS and NO (r =-0.60,-0.49,-0.51 ,-0.43 and -0.50,P<0.01 ).Conclusions Oxidative stress in patients with HHcy is related with pro-oxidant and antioxidant imbalance,Hcy impairment NO/L-arginine system and antioxidase activity defense systems. Hcy plays a role in the pathogenesis and development of atherosclerosis by increasing the oxidative stress and decreasing the ability of antioxidation.