梁普博,袁月榮,鄭云龍,蘇丹霞,趙紅娟
(廣東省農(nóng)墾中心醫(yī)院心血管內(nèi)科,廣東湛江524002)
ABO血型與急性心肌梗死的相關(guān)性
梁普博,袁月榮,鄭云龍,蘇丹霞,趙紅娟
(廣東省農(nóng)墾中心醫(yī)院心血管內(nèi)科,廣東湛江524002)
目的探討ABO血型與急性心肌梗死的相關(guān)性。方法將確診為急性心肌梗死的386例患者設(shè)為觀察組,再選取同期門診體檢健康者412名設(shè)為對(duì)照組;分別測(cè)定兩組中ABO血型、空腹血糖(FBG)、血脂等生化指標(biāo);運(yùn)用Logistic多元回歸分析等統(tǒng)計(jì)學(xué)方法分析患者ABO血型與急性心肌梗死相關(guān)性。結(jié)果與對(duì)照組比較,觀察組的低密度脂蛋白膽固醇(LDL-C)濃度[(2.91±1.12)mmo/L vs.(2.55±1.03)mmo/L,t=4.730,P<0.05]、空腹血糖濃度[(6.76±4.85)mmo/L vs.(4.53±1.26)mmo/L,t=8.761,P<0.05]及C反應(yīng)蛋白(CRP)濃度[(7.34±6.78)mmo/L vs.(2.97±2.56)mmo/L,t=11.894,P<0.05]較高,差異均有統(tǒng)計(jì)學(xué)意義,且吸煙史(52.07% vs.35.19%,χ2=60.792,P<0.0)、糖尿病(30.05%vs.10.19%,χ2=49.463,P<0.05)、原發(fā)性高血壓(高血壓)(53.63% vs.29.13%,χ2=49.489,P<0.05)及冠狀動(dòng)脈粥樣硬化性心臟?。ü谛牟。┘易迨罚?3.94%vs.10.92%,χ2=61.408,P<0.05)的比例較高,差異均有統(tǒng)計(jì)學(xué)意義。Logistic回歸分析顯示,ABO血型與急性心肌梗死相關(guān),非O血型患急性心肌梗死的風(fēng)險(xiǎn)明顯高于O血型(OR=1.635,95%CI:1.376~1.976,P<0.05),對(duì)性別、吸煙、高血壓、糖尿病、冠心病家族史、膽固醇濃度等急性心肌梗死危險(xiǎn)因素進(jìn)行校正后,該風(fēng)險(xiǎn)仍然存在(OR=1.312,95%CI:0.987~1.895,P<0.05)。結(jié)論ABO血型與急性心肌梗死的發(fā)生存在相關(guān)性,非O型血較O型血更易發(fā)生急性心肌梗死。
心肌梗死;ABO血型;相關(guān)性
急性心肌梗死(acute myocardial infarction,AMI)是比較常見的急危重癥,其發(fā)病率和病死率都較高,已成為全球亟需解決的公共衛(wèi)生問(wèn)題之一[1-2]。有研究發(fā)現(xiàn),血型也是AMI的一個(gè)獨(dú)立危險(xiǎn)因素,A型血的冠狀動(dòng)脈粥樣硬化性心臟?。ü谛牟。┗颊呦鄬?duì)其他血型的患者更易發(fā)生心肌梗死[3-4],也有研究表明,ABO血型與缺血性心臟病存在相關(guān)性,非O型血較O型血發(fā)生冠心病的風(fēng)險(xiǎn)增加,但血型與AMI發(fā)生的具體機(jī)制尚不清楚,各個(gè)國(guó)家得出的結(jié)論也不全相同[5-8]。目前,國(guó)內(nèi)對(duì)ABO血型與AMI相關(guān)性的研究尚少,本研究旨在通過(guò)對(duì)ABO血型與冠心病AMI發(fā)生的相關(guān)指標(biāo)的分析,探討ABO血型與AMI發(fā)生的相關(guān)性,并揭示AMI發(fā)生的可能血型遺傳因素?,F(xiàn)報(bào)道如下。
1.1 一般資料
選擇廣東省農(nóng)墾中心醫(yī)院心內(nèi)科2012年4月至2014年7月收治住院,確診為AMI的386例患者作為觀察組,男312例(80.83%),女74例(19.17%),年齡(63.27±5.21)歲;再選取同期門診體檢健康者412名對(duì)照人群設(shè)為對(duì)照組,男210名(50.97%),女202名(49.03%),年齡(62.86±5.14)歲。納入與排除標(biāo)準(zhǔn):依據(jù)我國(guó)急性ST段抬高型心肌梗死診斷和治療指南[9]的診斷標(biāo)準(zhǔn),心肌標(biāo)志物增高或增高后降低,至少有1次數(shù)值超過(guò)99%參考值上限,并至少伴有以下l項(xiàng)臨床指標(biāo)[(1)缺血臨床癥狀;(2)心電圖出現(xiàn)新的ST段改變或左束支傳導(dǎo)阻滯,即缺血性心電圖改變;(3)心電圖病理性Q波的出現(xiàn);(4)影像學(xué)顯示有區(qū)域性室壁運(yùn)動(dòng)異常或新的心肌活力喪失]。正常對(duì)照組的人選標(biāo)準(zhǔn):經(jīng)病史采集、問(wèn)卷調(diào)查、體格檢查、心電圖及超聲心動(dòng)圖等檢查排除冠心病。兩組研究對(duì)象均排除嚴(yán)重肝、腎功能不全,心房顫動(dòng),惡心腫瘤等外周血管疾病患者。
1.2 臨床資料的收集
通過(guò)問(wèn)卷調(diào)查收集所有研究對(duì)象的性別、年齡、吸煙飲酒史、冠心病家族史、原發(fā)性高血壓(高血壓)及糖尿病病史等。研究方案由廣東省農(nóng)墾中心醫(yī)院醫(yī)學(xué)倫理委員會(huì)審查批準(zhǔn),受試者均簽署知情同意書。
1.3 方 法
ABO血型檢測(cè)樣本為采集的研究對(duì)象2 d內(nèi)的新鮮血樣,采用試管法和玻片法并做正反定型,抗A及抗B單克隆抗體血型定型試劑來(lái)源于長(zhǎng)春博德生物技術(shù)有限責(zé)任公司;所有研究對(duì)象清晨抽取空腹靜脈血后,按廣東省農(nóng)墾中心醫(yī)院檢驗(yàn)科標(biāo)準(zhǔn)流程對(duì)低密度脂蛋白膽固醇(low-density lipoprotein cholesterin,LDL-C)、總膽固醇(total cholesterin,TC)、空腹血糖(fasting blood-glucos,F(xiàn)BG)及C反應(yīng)蛋白(C reactive protein,CRP)進(jìn)行檢測(cè)。
1.4 統(tǒng)計(jì)學(xué)分析
所有數(shù)據(jù)均通過(guò)Excel表格錄入,應(yīng)用SPSS 15.0軟件包進(jìn)行統(tǒng)計(jì)分析。計(jì)量資料用(±s)表示,兩組間均數(shù)比較采用獨(dú)立樣本t檢驗(yàn)。計(jì)數(shù)資料用百分?jǐn)?shù)表示,比較采用卡方檢驗(yàn)。使用Logisctic回歸分析探討ABO血型與AMI的相關(guān)性。以P<0.05為差異有統(tǒng)計(jì)學(xué)意義。
2.1 兩組基線資料比較
觀察組與對(duì)照組在年齡、吸煙史及ABO血型分布方面比較,差異無(wú)統(tǒng)計(jì)意義(P>0.05);觀察組LDL-C、FBG及CRP濃度高于對(duì)照組,且在吸煙、高血壓、糖尿病及冠心病家族史的比例更高,而TC濃度低于對(duì)照組,差異均有統(tǒng)計(jì)學(xué)意義(P<0.05),詳見表1和表2。
表1 觀察組和對(duì)照組計(jì)數(shù)基線資料比較 [n(%)]
2.2 ABO血型與急性心肌梗死的相關(guān)性
Logisctic回歸分析結(jié)果顯示,ABO血型與AMI發(fā)生相關(guān),與O血型相比,A、B血型者患AMI的風(fēng)險(xiǎn)增加(OR=1.332、1.736,P<0.05),非O血型者罹患AMI的風(fēng)險(xiǎn)高于O血型者(OR=1.635,P<0.05)。校正AMI危險(xiǎn)因素如性別、吸煙、高血壓、糖尿病、冠心病家族史和TC濃度等因素,仍提示非O血型者罹患AMI的風(fēng)險(xiǎn)高于O血型者(OR=1.312,P< 0.05),詳見表3。
表2 觀察組和對(duì)照組計(jì)量基線資料比較[±s]
表2 觀察組和對(duì)照組計(jì)量基線資料比較[±s]
項(xiàng)目n年齡(歲)LDL-C(mmol/L)TC(mmol/L)FBG(mmol/L)CRP(mg/L)觀察組386 63.27±5.21 2.91±1.12 4.15±1.15 6.76±4.85 7.34±6.78對(duì)照組412 62.86±5.14 2.55±1.03 4.38±1.09 4.53±1.26 2.97±2.56 t值P值1.119 4.730 -2.901 8.761 11.894 0.264 0.000 0.004 0.000 0.000
表3 ABO血型與AMI的Logisctic回歸分析結(jié)果
ABO血型作為一種非常穩(wěn)定的遺傳信息,其抗原是分布在紅細(xì)胞膜上的糖蛋白和糖脂,與疾病的發(fā)生存在一定相關(guān)性,這可能與疾病發(fā)病誘因的環(huán)境因素和特殊遺傳背景有關(guān)[10-11]。既往研究顯示,心肌梗死的發(fā)生與血型存在相關(guān)性。如Framingha等[12]研究發(fā)現(xiàn),非O型血患者較O型血患者罹患冠心病和心肌梗死的風(fēng)險(xiǎn)更高;Lee等[13]研究表明,校正相關(guān)影響因素后,A型血與冠心病及心肌梗死的發(fā)生獨(dú)立相關(guān);Wu等[14]發(fā)現(xiàn),非O型血患者較O型血患者發(fā)生心肌梗死的風(fēng)險(xiǎn)大大增加;芬蘭人Biancari等[15]研究也發(fā)現(xiàn),B血型和心肌梗死的發(fā)生高度相關(guān)。與此同時(shí),也有研究則未發(fā)現(xiàn)ABO血型與心肌梗死發(fā)病風(fēng)險(xiǎn)存在相關(guān)性[16]。
ABO血型具有穩(wěn)定的遺傳信息,存在種族和地區(qū)的差異,以上不同的研究結(jié)果可能與不同地區(qū)的研究人群及不同的樣本量有關(guān)。
心肌梗死是一種多因素的疾病,其發(fā)病機(jī)制比較復(fù)雜,遺傳因素、炎癥反應(yīng)、自身免疫失衡、吸煙等生活方式可能都與心肌梗死的發(fā)病密切相關(guān)。研究結(jié)果發(fā)現(xiàn),觀察組LDL-C、FBG及CRP濃度高于對(duì)照組,且在吸煙、高血壓、糖尿病及冠心病家族史的比例更高,而在TC濃度低于對(duì)照組,差異均有統(tǒng)計(jì)學(xué)意義(P<0.05),表明吸煙、高血壓、糖尿病、冠心病家族史及LDL-C、FBG及CRP濃度這些因素都是AMI發(fā)生的危險(xiǎn)因素,這與相關(guān)研究結(jié)果相似[17]。本研究發(fā)現(xiàn),ABO血型與AMI發(fā)生存在一定的相關(guān)性,A、B血型者較O血型者患AMI的風(fēng)險(xiǎn)增加(OR=1.332、1.736),非O血型者罹患AMI的風(fēng)險(xiǎn)高于O血型者(OR= 1.635),其OR值均有統(tǒng)計(jì)學(xué)意義(P<0.05)。校正AMI傳統(tǒng)危險(xiǎn)因素后,仍提示非O血型者罹患AMI的風(fēng)險(xiǎn)高于O血型者(OR=1.312,P<0.05)。本研究結(jié)果與之前多數(shù)國(guó)內(nèi)外研究結(jié)果一致。這可能與ABO血型可影響LDL-C、血漿血管性血友病因子、細(xì)胞間黏附因子濃度及炎癥因子,如可溶性E選擇素相關(guān)[18-20],也可能與ABO血型可通過(guò)血脂濃度的的影響而介導(dǎo)冠心病的發(fā)生有關(guān)[21]。目前,ABO血型與心肌梗死相關(guān)的機(jī)制尚不清楚。雖已有研究嘗試通過(guò)血型與遺傳、血脂、炎癥因子、血液流變學(xué)及性格等關(guān)系來(lái)闡述兩者的相關(guān)性,但迄今仍沒(méi)有得出統(tǒng)一的令人滿意的解釋,其確切機(jī)制還有待進(jìn)一步研究。
綜上所述,ABO血型與AMI的發(fā)生、發(fā)展存在一定的相關(guān)性,非O型血者更易發(fā)生AMI,其可能是通過(guò)影響炎癥因子、膽固醇等而導(dǎo)致AMI的發(fā)生,因此,血型的研究對(duì)冠心病及心肌梗死的防治具有一定作用。由于此次研究樣本和地區(qū)的局限性,對(duì)血型與AMI的相關(guān)性的研究還有待深入地探討和證實(shí)。另外,今后的研究還可進(jìn)一步探討ABO血型與AMI發(fā)病相關(guān)的分子學(xué)機(jī)制。
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Correlation between ABO blood group and acute myocardial infarction
LIANG Pu-bo,YUAN Yue-rong,ZHENG Yun-long,SU Dan-xia,ZHAO Hong-juan
(Department of Cardiology,Guangdong Nongken Central Hospital,Zhanjiang,Guangdong 524002,China)
ObjectivesTo analyze the correlation between ABO blood group and risk of acute myocardial infarction in human.MethodsThe study was carried out in observed group consisting of 386 cases with acute myocardial in?farction and healthy control group with 412 cases of the same period healthy subjects outpatients.The biochemical index of ABO blood group,fasting blood-glucose(FBG)and blood lipids were mensurated,respectively.Correlation between ABO blood group and acute myocardial infarction was analyzed by Logistic multiple regression analysis.ResultsCompared to control group,observed group had higher concentrations of low density lipoprotein cholesterin[(2.91±1.12)mmo/L vs.(2.55±1.03)mmo/L,t=4.730,P<0.05],fasting blood-glucose(FBG)[(6.76±4.85)mmo/L vs.(4.53±1.26)mmo/L,t=8.761,P<0.05]and C reactive protein(CRP)[(7.34±6.78)mmo/L vs.(2.97±2.56)mmo/L,t=11.894,P<0.05],there were statistical differences between the two groups;as well as higher proportion of smoking(52.07%vs.35.19%,χ2=60.792,P<0.0),history of diabetes(30.05%vs.10.19%,χ2=49.463,P<0.05),history of hypertension(53.63%vs.29.13%,χ2=49.489,P<0.05)and family history of coronary heart disease(33.94%vs. 10.92%,χ2=61.408,P<0.05),there were statistical differences between the two groups.Logistic analysis indicated that ABO blood groups associated with acute myocardial infarction.Compared with O blood group,the non-O blood group individuals had a higher risk of acute myocardial infarction(OR=1.635,95%CI:1.376-1.976,P<0.05),this result remained after adiustment for the conventional cardiovascular risk factors such as gender,smoking,hypertension,diabetes,history of coronary heart disease and serum cholesterol concentration(OR=1.312,95%CI:0.987-1.895,P<0.05).ConclusionsABO blood group are closely related to the occurrence of acute myocardial infarction.Non-O blood group of people are more likely to occur acute myocardial infarction than O blood group of people.
:myocardial infarction;ABO blood group;correlation
R542.2+2
:A
:1007-9688(2017)02-0147-04
10.3969/j.issn.1007-9688.2017.02.07
2016-03-14)
梁普博(1982-),男,主治醫(yī)師,研究方向?yàn)樾难芗膊。ü谛牟橹鳎┑脑\治。