人博卡病毒在健康獻(xiàn)漿人群中的基因組和血清學(xué)抗體流行情況研究
發(fā)布時(shí)間:2019-02-18 13:44
【摘要】:目的了解中國(guó)健康獻(xiàn)漿人群、原料血漿和血液制品中人博卡病毒(Human bocavirus, HBoV)的基因組和血清學(xué)抗體的流行情況以及遺傳多樣性特征。方法基于ABI7900HT Fast Real-Time PCR System平臺(tái),建立檢測(cè)HBoV DNA的特異性、敏感性Real-Time PCR (SYBR Green法)方法。并根據(jù)此方法對(duì)從血液制品公司收集到的健康獻(xiàn)漿人群的單人份血漿(不同月份共6096份)以及本實(shí)驗(yàn)室中保存的原料血漿(共241份)和血液制品[共326份,包含白蛋白65份,靜脈注射丙種球蛋白(intravenous immunoglobulin,IVIG)197份,凝血因子Ⅷ(factor Ⅷ,FⅧ)47份,纖維蛋白原(fibrinogen, Fg)12份,蛋白酶原復(fù)合物(prothrombin complex concentrate, PCC)5份]進(jìn)行HBoV DNA的篩查,并用Nested-PCR的方法進(jìn)行確認(rèn)。巢式確認(rèn)陽(yáng)性后樣本進(jìn)行820bp片段的巢式PCR擴(kuò)增、測(cè)序并進(jìn)行遺傳多樣性分析。同時(shí),對(duì)209份血漿樣品(根據(jù)HBoV病毒載量分為3組:組1,病毒載量104copies/mL;組2,基因組陽(yáng)性但病毒載量104copies/mL;組3,基因組陰性)分別進(jìn)行血清學(xué)抗HBoVIgG和IgM抗體的篩查。 結(jié)果HBoV在健康獻(xiàn)漿人群中的基因組流行率為9.06%,病毒載量范圍為5.01×102-3.02×106copies/mL。241份原料血漿中有43份有BoV DNA檢出,檢出率為17.84%,其中3份病毒載量高于104copies/mL。326份血液制品中44份為HBoVDNA陽(yáng)性,陽(yáng)性率為13.50%,其中2份白蛋白(3.08%,2/65)、14份IVIG(7.11%,14/197)、26份FⅧ(55.32%,26/47)和2份Fg(16.67%,2/12)中HBoV DNA陽(yáng)性,5份PCC中未檢出HBoV DNA。不同病毒載量血漿中血清學(xué)抗體陽(yáng)性率分析表明,HBoV核酸檢測(cè)陽(yáng)性血漿中抗HBoV IgG抗體檢出率高于HBoV核酸陰性血漿,HBoV病毒高載量組血漿中抗HBoV IgM抗體檢出率高于HBoV陰性組。遺傳多樣性分析顯示在中國(guó)被檢地區(qū)健康獻(xiàn)漿人群中流行的HBoV為1型。 結(jié)論1型人博卡病毒在中國(guó)健康獻(xiàn)漿人群、原料血漿和血液制品中存在較高流行率,但大多處于低載量流行。HBoV是否對(duì)血液安全構(gòu)成威脅,尚有待進(jìn)一步研究。
[Abstract]:Objective to investigate the prevalence and genetic diversity of genomic and serological antibodies against human BCG virus (Human bocavirus, HBoV) in Chinese healthy donor population, raw plasma and blood products. Methods based on ABI7900HT Fast Real-Time PCR System platform, a specific and sensitive Real-Time PCR (SYBR Green method for detecting HBoV DNA was established. According to this method, single plasma samples (6096 in different months), raw plasma (241) and blood products [326, including 65 albumin] were collected from healthy donors from blood products company. The screening of HBoV DNA was performed by intravenous immunoglobulin (intravenous immunoglobulin,IVIG) 197, factor 鈪,
本文編號(hào):2425898
[Abstract]:Objective to investigate the prevalence and genetic diversity of genomic and serological antibodies against human BCG virus (Human bocavirus, HBoV) in Chinese healthy donor population, raw plasma and blood products. Methods based on ABI7900HT Fast Real-Time PCR System platform, a specific and sensitive Real-Time PCR (SYBR Green method for detecting HBoV DNA was established. According to this method, single plasma samples (6096 in different months), raw plasma (241) and blood products [326, including 65 albumin] were collected from healthy donors from blood products company. The screening of HBoV DNA was performed by intravenous immunoglobulin (intravenous immunoglobulin,IVIG) 197, factor 鈪,
本文編號(hào):2425898
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