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      激素耐藥型腎病綜合征中NPHS1基因研究進(jìn)展

      2014-08-08 15:30覃幼玲綜述林栩
      右江醫(yī)學(xué) 2014年3期

      覃幼玲+綜述+林栩+

      基金項(xiàng)目:廣西高校科研項(xiàng)目(200103YB116)

      作者簡(jiǎn)介:覃幼玲,女,在讀碩士,研究方向是腎小球疾病基礎(chǔ)與臨床。 Email:qinyouling123@163.com.

      ▲通信作者:林栩,男,主任醫(yī)師,碩士研究生導(dǎo)師,研究方向是腎小球疾病基礎(chǔ)與臨床。Email:linyyfyy@163.com.

      覃幼玲1 綜述,林栩2▲審校

      (1.廣西醫(yī)科大學(xué)研究生學(xué)院,南寧 530021;2.右江民族醫(yī)學(xué)院附屬醫(yī)院腎內(nèi)科,百色 533000)

      【關(guān)鍵詞】激素耐藥型腎病綜合征;NPHS1;Nephrin

      中圖分類號(hào):R692文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):10031383(2014)03035804

      DOI:10.3969/j.issn.10031383.2014.03.028

      在腎小球疾病中,激素耐藥型腎病綜合征(steroidresistant nephrotic syndrom,SRNS)占原發(fā)性腎病綜合征(primary nephrotic syndrom,PNS)的10%~20%,且10年內(nèi)將從SRNS進(jìn)展至終末期腎臟病(ESRD)的患者高達(dá)30%~40%,是臨床上的一大棘手問題。1998年,腎小球足細(xì)胞裂孔隔膜(slit diaphragm,SD)上的分子蛋白nephrin問世,使腎小球的研究提升到分子生物學(xué)水平,探討腎小球足細(xì)胞相關(guān)分子的作用機(jī)制,有望為腎病綜合征等腎小球疾病的基因診斷、治療和預(yù)后提供新途徑。Nephrin作為SD上首個(gè)被發(fā)現(xiàn)的蛋白,其與先天性腎病綜合征(congenital nephrotic syndrome,CNS)等遺傳性和獲得性腎小球疾病相關(guān),nephrin蛋白的減少和分布異??蓪?dǎo)致蛋白尿的產(chǎn)生和腎臟病理病變[1]。編碼基因NPHS1突變可引起先天性腎病綜合征芬蘭型(congenital nephrotic syndrome of Finland,CNF)和SRNS。下面就NPHS1基因與SRNS的關(guān)系作一綜述如下。

      1NPHS1和nephrin的結(jié)構(gòu)和功能

      NPHS1基因位于19ql3.l,長(zhǎng)26 kb,含有29個(gè)外顯子,1214個(gè)氨基酸,屬于黏附分子免疫球蛋白超家族成員,處于腎小球?yàn)V過屏障SD上,是構(gòu)成足細(xì)胞結(jié)構(gòu)的一種重要蛋白[2]。Nephrin蛋白可表達(dá)于腎臟、肝臟、心臟、肺、腦、肌肉、胰腺、胎盤等組織。Nephrin與podocin和CD2AP分子結(jié)合,共同保障細(xì)胞內(nèi)信號(hào)傳導(dǎo)通路的通暢,保持足細(xì)胞形態(tài)的完整性。有學(xué)者認(rèn)為nephrin的減少與蛋白尿的發(fā)生密切相關(guān),NPHS1基因突變/多態(tài)性在CNS、微小病變腎?。╩inimal change disease, MCD)等疾病的進(jìn)展及其蛋白尿的發(fā)生中發(fā)揮重要作用[2]。

      2NPHS1基因突變

      2.1NPHS1基因突變的臨床病理特點(diǎn)

      NPHS1基因突變所致SRNS擁有NS的臨床特點(diǎn),但缺乏腎外表現(xiàn),幾乎全部患者對(duì)激素和免疫抑制劑治療無(wú)效,但移植后復(fù)發(fā)率低。依據(jù)年齡分為CNS、兒童期SRNS、成年期SRNS共3種類型。CNS起病早、病情重、腎功能進(jìn)行性減退、激素治療無(wú)效、死亡率高、預(yù)后極差。研究發(fā)現(xiàn)多數(shù)CNS患兒為低體重早產(chǎn)兒,3個(gè)月內(nèi)發(fā)病,在宮內(nèi)即有大量蛋白尿,在出生時(shí)或出生后幾天即可出現(xiàn)水腫,2~3年快速進(jìn)展至(endstage renal disease,ESRD)。芬蘭人群CNS患兒腎移植后蛋白尿復(fù)發(fā)率為20%~25%,血漿置換可以緩解,L4lfsX91/L41fsX91其特有的基因型,而非芬蘭人群復(fù)發(fā)率僅有6%~16.7%,對(duì)血漿置換和環(huán)磷酰胺治療敏感。兒童期SRNS多于3個(gè)月~14歲8個(gè)月發(fā)病,平均4歲8個(gè)月,2.4~20年后進(jìn)展至ESRD,平均8.7年。主要腎臟病理是MCD和局灶節(jié)段性腎小球硬化癥(focal segmental glomerulosclerosis,F(xiàn)SGS),部分為系膜增生性腎小球腎炎(mesangial proliferative glomerulonephritis,MsPGN),腎移植后復(fù)發(fā)率是28.7%。成年期SRNS發(fā)病年齡在27~29歲之間,1~5年后進(jìn)展至ESRD,平均3年,病理類型是FSGS。

      2.2NPHS1基因突變與CNS患兒的關(guān)系

      芬蘭人群CNS中NPHS1基因突變率高達(dá)98%,其中94%患者表現(xiàn)為Finmajor121delCT(L41fsX91)和Finminor 3325C>T(R1109X)位點(diǎn)突變,前者占78%,后者為16%。María等[3]研究發(fā)現(xiàn)在芬蘭人群L41fsX90和R1109X突變可致SD結(jié)構(gòu)nephrin蛋白缺失。Machuca等[4]在來自西歐、北美、土耳其107個(gè)家族的117例非芬蘭人群CNS患者中檢測(cè)出16個(gè)家族20例存在NPHS1基因?yàn)閜.R138Q、p.V260E、p.R229Q三個(gè)位點(diǎn)突變,突變率為14.9%(16/107)。Schoeb等[5]在來自土耳其、阿拉伯、歐洲、高加索的62個(gè)家族的67名患兒中檢測(cè)到36個(gè)家族存在NPHS1基因突變,突變率達(dá)58%(36/62)。Mbarek等[6]在來自突尼斯的13個(gè)家族24例CNS和SRNS患兒中檢測(cè)出7個(gè)家族存在NPHS1基因突變,突變率為53.8%(7/13)。Ovunc等[7]在來自高加索、土耳其、阿拉伯等7個(gè)國(guó)家和地區(qū)的20個(gè)家族23例CNS患兒中檢測(cè)到9個(gè)家族存在NPHS1基因突變,突變率為45%(9/20)。Fylaktou等[8]在2例希臘CNS患者檢測(cè)到NPHS1基因c.1096A > C(pS366R)純合突變和c.1096A > C(pS366R)、c.649_650delGT (p.Cys217fsX)、c.791C>G(p.P264R)3種復(fù)合雜合突變。Wu等[9]在1例家族性CNS患兒檢測(cè)到NPHS1基因突變c.2783C>A和c.2225T>C突變。Yu等[10]在1例中國(guó)散發(fā)性CNS兒童檢測(cè)到NPHS1基因3250insG(V1084fsX1095)純合突變。米榮等人[11]在1例CNS患兒檢測(cè)出NPHS1基因G928A(D310)、IVS18(+5G>A)突變和SNP位點(diǎn)E117K(rs3814995)。

      3NPHS1基因突變與SRNS的關(guān)系

      3.1NPHS1基因突變與家族性兒童期SRNS的關(guān)系

      孟大川[12]課題組在中國(guó)南方漢族3例家族性SRNS中檢測(cè)到1例存在NPHS1基因雜合突變2398C>T(R800C)和4個(gè)SNP位點(diǎn)349G>A、IVS24+36C>T、3315G>A和 IVS27+45C,突變率為33.3%(1/3)。Abid等[13]在145名巴基斯坦SRNS患兒檢測(cè)到7例家族性SRNS患者存在NPHS1純合突變,突變率為4.8%(7/145)。可見,家族性兒童期SRNS的NPHS1基因突變率在48%~333%之間[12,13]。

      3.2NPHS1基因突變與散發(fā)性兒童期SRNS的關(guān)系

      Caridi等[14]研究人員在40例SRNS患者中檢測(cè)出NPHS1基因雜合突變7例,突變率分別為175%(7/40)。然而,Buscher等[15]德國(guó)課題組于65例散發(fā)性SRNS患兒中篩查出1例存在NPHS1基因復(fù)合雜合突變,突變率是1.5%(1/65)。2013年,Dincel等[16]在1例SRNS患者檢出NPHS1基因SNP位點(diǎn)E117K和NPHS2基因突變P118L,提示NPHS1基因SNP位點(diǎn)E117K改變了腎小球足細(xì)胞的信號(hào)傳導(dǎo)通路,從而導(dǎo)致NPHS2基因P118L位點(diǎn)突變。Behbahan等[17]在伊朗西南部20例SRNS兒童中檢測(cè)出8例存在NPHS1基因突變,檢出率為40%(8/20)。王道靜等[18]在40例中國(guó)南方漢族散發(fā)性SRNS兒童中檢測(cè)到6例存在NPHSl基因突變928G>A(D310N)、2677A>G(T893A)、2869G>C(V957L)、IVS8+30C>T、IVS21+14G>A、IVS2523C>T和+142T>C,突變率為15%(6/40)。封東寧等[19]于10例中國(guó)散發(fā)性SRNS患者檢測(cè)出1例攜帶NPHS1基因復(fù)合雜合突變2677A>G(T893A)和142T>C,檢出率為10%(1/10);在20例緩解性SRNS患兒中檢測(cè)到4例NPHS1基因單雜合突變928G>A、IVS8+30C>T、IVS21+14G>A和IVS2523C>T,檢出率為20%(4/20)。可見,散發(fā)性兒童期SRNS患兒的NPHS1基因突變檢出率在10%~40%之間[14~19]。

      3.3NPHS1基因突變與成年期SRNS的關(guān)系

      Santín等[20]在89個(gè)家族的97例散發(fā)性SRNS患者檢測(cè)到5個(gè)家族性和7例散發(fā)性SRNS者存在NPHS1基因突變,檢出率為23.1%(12/52),發(fā)病年齡最大的是27歲。Luo等[21]在36例MCD成人SRNS檢測(cè)到NPHS1基因SNP位點(diǎn)G349A。

      4NPHS1基因突變的臨床意義

      NPHS1基因突變分析對(duì)SRNS患者的病因診斷、指導(dǎo)治療和判斷預(yù)后等具有指導(dǎo)意義,為該基因突變的高危家庭進(jìn)行產(chǎn)前診斷,提供遺傳咨詢,為SRNS患者提供新的靶向治療途徑。

      4.1有助于指導(dǎo)病因診斷及臨床治療

      在芬蘭,CNS患兒NPHS1基因突變率高達(dá)98%,而非芬蘭人群CNS患兒NPHS1突變率為14.9%~58%[4~7]。目前,家族性兒童期SRNS最高檢出率為33.3%[12],散發(fā)性兒童期SRNS最高檢出率為40%[17],成年期SRNS為23.1%[18]。為此,進(jìn)行NPHS1基因檢測(cè)有助于SRNS患者的臨床病因診斷。Godefroid[22]研究提示,血管緊張素轉(zhuǎn)換酶抑制劑(ACEI)與吲哚美辛聯(lián)合用藥對(duì)NPHS1基因突變的20%CNS患者有效,但仍需結(jié)合患者的基因背景和臨床結(jié)果來評(píng)估其藥物治療的潛在性和安全性。存在NPHS1基因純合或復(fù)合雜合突變的SRNS患兒對(duì)激素和免疫抑制劑耐藥,故此類患者可直接進(jìn)入腎移植,復(fù)發(fā)率低,也避免了骨髓抑制、股骨頭壞死等嚴(yán)重的副作用。

      4.2有助于判斷疾病預(yù)后及產(chǎn)前診斷和遺傳咨詢

      NPHS1 基因突變引起的 SRNS 的發(fā)病年齡呈低齡化,包括先天性和后天獲得性腎病[23]。其中,NPHS1基因引起的CNS患者可迅速進(jìn)展到ESRD,僅短短的2~3年時(shí)間,但對(duì)于兒童期SRNS患兒相對(duì)較長(zhǎng),平均為8.7年。相關(guān)報(bào)道顯示,NPHS1突變引起的SRNS患者發(fā)病年齡越大癥狀越輕[14],突變率越低[24],其進(jìn)展至ESRD的時(shí)間越長(zhǎng)。為此,NPHS1基因突變引起的CNS和兒童期SRNS患兒明確診斷后,就能預(yù)測(cè)其發(fā)展至ESRD的時(shí)間,為早期進(jìn)入腎移植階段做好準(zhǔn)備。芬蘭CNS患兒腎移植后蛋白尿復(fù)發(fā)率為20%~25%,而非芬蘭人群復(fù)發(fā)率較低,為6%~16.7%;兒童期SRNS患兒復(fù)發(fā)率最高,為28.7%??梢?,NPHS1基因突變檢測(cè)結(jié)果可判斷NS患兒腎移植的預(yù)后。而開展SRNS患者的NPHS1基因檢測(cè),有利于確定患兒父母所攜帶的突變位點(diǎn),為突變高危家庭提供遺傳咨詢,使產(chǎn)前診斷具有充分的實(shí)驗(yàn)室依據(jù)[25]。

      5展望

      目前,關(guān)于NPHS1基因突變所致的SRNS的研究還存在很多疑問,例如NPHS1基因編碼蛋白nephrin受哪些相關(guān)因子的調(diào)控,作用機(jī)制如何;NPHS1基因除了引起CNS外,還可導(dǎo)致其他哪些腎?。籒PHS1基因型和等位基因與腎臟疾病的關(guān)系是怎樣的。NPHS1基因突變所致的SRNS的研究?jī)H限于小樣本,尚缺乏多樣本多基因的研究。芬蘭、法國(guó)、西班牙、德國(guó)、意大利、中國(guó)漢族等人群已有相關(guān)報(bào)道,其他人群的突變情況如何尚未明朗,例如NPHS1在我國(guó)壯族人群中的基因突變情況尚未明確,尚需進(jìn)一步研究。

      參考文獻(xiàn)

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      [4] Schoeb DS,Chernin G,Heeringa SF,et al.Nineteen novel NPHS1 mutations in a worldwide cohort of patients with congenital nephrotic syndrome (CNS)[J].Nephrol Dial Transplant,2010,25(9):29.702976.

      [5] Mbarek IB,Abroug S,Omezzine A,et al.Novel mutations in steroidresistant nephrotic syndrome diagnosed in Tunisian children[J].Pediatr Nephrol ,2011,26(2):241249.

      [6] Ovunc B,Ashraf S,VegaWarner V,et al.Mutation Analysis ofNPHS1 in a Worldwide Cohort of Congenital Nephrotic Syndrome Patients[J].Nephron Clin Pract ,2012,120(3):c139146.

      [7] Fylaktou I,Megremis S,Mitsioni A,et al.Novel and known nephrin gene(NPHS1) mutations in two Greek cases with congenital nephrotic syndrome including a complex genotype[J].J Genet,2013,92(3):577581.

      [8] Wu L,Hu J,Xue J,et al.Two novel NPHS1 mutations in a Chinese family with congenital nephrotic syndrome[J].Genetics and Molecular Research,2011,10(4):25172522.

      [9] Yu Z,Wang D,Meng D,et al.Mutations in NPHS1 in a Chinese child with congenital nephrotic syndrome[J].Genetics and Molecular Research,2012,11(2):14601464.

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      [11]孟大川,王道靜,余自華,等.中國(guó)南方漢族人3個(gè)家族性激素耐藥型腎病綜合征家系CD2AP和NPHS1基因突變分析[J].實(shí)用兒科臨床雜志,2011,26(5): 329332+344.

      [12]Abid A,Khaliq S,Shahid S,et al.A spectrum of novel NPHS1 and NPHS2 gene mutations in pediatric nephrotic syndrome patients from Pakistan[J].Gene,2012,502(2):133137.

      [13]Santin S,GarcíaMaset R,Ruíz P,et al.Nephrin mutations cause childhoodand adultonset focal segmental glomerulosclerosis[J].Kidney Int,2009,76(12): 12681276.

      [14]Caridi G,Gigante M,Ravani P,et al.Clinical Features and LongTerm Outcome of Nephrotic Syndrome Associated with Heterozygous NPHS1 and NPHS2 Mutations[J].Clin J Am Soc Nephrol,2009,4(6): 10651072.

      [15]Buscher AK,Kranz B,Boscher R,et a1.Immunosuppression and renal outcomeincongenitaland pediatric steroid resistant nephrotic syndrome[J].Clin J Am Soc Nephrol,2010,5(11):20752084.

      [16]Dincel N,Mir S,Berdeli A,et a1.Does NPHS1 polymorphism modulate P118l mutation in NPHS2?[J].Saudi J Kidney Dis Transpl,2013,24(6):12101213.

      [17]Behbahan AG,Poorshiri B,Mortazavi F,et al.Derakhshan SM.NPHS1 gene mutations in children with Nephrotic Syndrome in northwest Iran[J].Pak J Biol Sci,2013,16(17):882886.

      [18]王道靜,余自華,孟大川,等.中國(guó)南方漢族散發(fā)性激素耐藥型腎病綜合征兒童NPHS1基因突變分析[J].中華腎臟病雜志,2012,28(2):95100.

      [19]封東寧,楊勇輝,余自華,等.散發(fā)性激素耐藥型腎病綜合征患兒30例足細(xì)胞基因突變分析[J].實(shí)用兒科臨床雜志,2012,27(5):327330.

      [20]Santin S,GarcíaMaset R,Ruíz P,et al.Nephrin mutations cause childhoodand adultonset focal segmental glomerulosclerosis[J].Kidney Int,2009,76(12):12681276.

      [21]Luo YZ,Wang C,Zeng L.Correlation between Chinese medicine syndromes and the NPHS1 gene and NPHS2 gene polymorphism as well as corticosteroid sensitivity in patients with minimal change disease[J].Zhong guo Zhong Xi Yi Jie He Za Zhi,2012,32(7):914917.

      [22]Godefroid N,Dahan K.Expanding the clinical spectrum of congenital nephrotic syndrome caused by NPHS1 mutations[J].Nephrol Dial Transplant,2010,25(9):28372839.

      [23]Santín S,Bullich G,TazónVega B,et al.Clinical utility of genetic testing in children and adults with steroidresistant nephrotic syndrome[J].Clin J Am Soc Nephrol,2011,6(5):11391148

      [24]Philippe A,Nevo F,Esquivel EL,et al.Nephrin mutationscan cause childhoodonset steroidresistant nephrotic sy ndrome[J].J Am Soc Nephrol,2008,19(10):18711878.

      [25]于力.兒童腎臟病與基因突變[J].臨床兒科雜志,2010,28(4):307311.

      (收稿日期:2014-01-15修回日期:2014-06-13)

      (編輯:潘明志)

      [7] Fylaktou I,Megremis S,Mitsioni A,et al.Novel and known nephrin gene(NPHS1) mutations in two Greek cases with congenital nephrotic syndrome including a complex genotype[J].J Genet,2013,92(3):577581.

      [8] Wu L,Hu J,Xue J,et al.Two novel NPHS1 mutations in a Chinese family with congenital nephrotic syndrome[J].Genetics and Molecular Research,2011,10(4):25172522.

      [9] Yu Z,Wang D,Meng D,et al.Mutations in NPHS1 in a Chinese child with congenital nephrotic syndrome[J].Genetics and Molecular Research,2012,11(2):14601464.

      [10]米榮,王曉穎,康利民,等.先天性腎病綜合征1例報(bào)告及文獻(xiàn)復(fù)習(xí)[J].北京醫(yī)學(xué),2013,35(4):253256.

      [11]孟大川,王道靜,余自華,等.中國(guó)南方漢族人3個(gè)家族性激素耐藥型腎病綜合征家系CD2AP和NPHS1基因突變分析[J].實(shí)用兒科臨床雜志,2011,26(5): 329332+344.

      [12]Abid A,Khaliq S,Shahid S,et al.A spectrum of novel NPHS1 and NPHS2 gene mutations in pediatric nephrotic syndrome patients from Pakistan[J].Gene,2012,502(2):133137.

      [13]Santin S,GarcíaMaset R,Ruíz P,et al.Nephrin mutations cause childhoodand adultonset focal segmental glomerulosclerosis[J].Kidney Int,2009,76(12): 12681276.

      [14]Caridi G,Gigante M,Ravani P,et al.Clinical Features and LongTerm Outcome of Nephrotic Syndrome Associated with Heterozygous NPHS1 and NPHS2 Mutations[J].Clin J Am Soc Nephrol,2009,4(6): 10651072.

      [15]Buscher AK,Kranz B,Boscher R,et a1.Immunosuppression and renal outcomeincongenitaland pediatric steroid resistant nephrotic syndrome[J].Clin J Am Soc Nephrol,2010,5(11):20752084.

      [16]Dincel N,Mir S,Berdeli A,et a1.Does NPHS1 polymorphism modulate P118l mutation in NPHS2?[J].Saudi J Kidney Dis Transpl,2013,24(6):12101213.

      [17]Behbahan AG,Poorshiri B,Mortazavi F,et al.Derakhshan SM.NPHS1 gene mutations in children with Nephrotic Syndrome in northwest Iran[J].Pak J Biol Sci,2013,16(17):882886.

      [18]王道靜,余自華,孟大川,等.中國(guó)南方漢族散發(fā)性激素耐藥型腎病綜合征兒童NPHS1基因突變分析[J].中華腎臟病雜志,2012,28(2):95100.

      [19]封東寧,楊勇輝,余自華,等.散發(fā)性激素耐藥型腎病綜合征患兒30例足細(xì)胞基因突變分析[J].實(shí)用兒科臨床雜志,2012,27(5):327330.

      [20]Santin S,GarcíaMaset R,Ruíz P,et al.Nephrin mutations cause childhoodand adultonset focal segmental glomerulosclerosis[J].Kidney Int,2009,76(12):12681276.

      [21]Luo YZ,Wang C,Zeng L.Correlation between Chinese medicine syndromes and the NPHS1 gene and NPHS2 gene polymorphism as well as corticosteroid sensitivity in patients with minimal change disease[J].Zhong guo Zhong Xi Yi Jie He Za Zhi,2012,32(7):914917.

      [22]Godefroid N,Dahan K.Expanding the clinical spectrum of congenital nephrotic syndrome caused by NPHS1 mutations[J].Nephrol Dial Transplant,2010,25(9):28372839.

      [23]Santín S,Bullich G,TazónVega B,et al.Clinical utility of genetic testing in children and adults with steroidresistant nephrotic syndrome[J].Clin J Am Soc Nephrol,2011,6(5):11391148

      [24]Philippe A,Nevo F,Esquivel EL,et al.Nephrin mutationscan cause childhoodonset steroidresistant nephrotic sy ndrome[J].J Am Soc Nephrol,2008,19(10):18711878.

      [25]于力.兒童腎臟病與基因突變[J].臨床兒科雜志,2010,28(4):307311.

      (收稿日期:2014-01-15修回日期:2014-06-13)

      (編輯:潘明志)

      [7] Fylaktou I,Megremis S,Mitsioni A,et al.Novel and known nephrin gene(NPHS1) mutations in two Greek cases with congenital nephrotic syndrome including a complex genotype[J].J Genet,2013,92(3):577581.

      [8] Wu L,Hu J,Xue J,et al.Two novel NPHS1 mutations in a Chinese family with congenital nephrotic syndrome[J].Genetics and Molecular Research,2011,10(4):25172522.

      [9] Yu Z,Wang D,Meng D,et al.Mutations in NPHS1 in a Chinese child with congenital nephrotic syndrome[J].Genetics and Molecular Research,2012,11(2):14601464.

      [10]米榮,王曉穎,康利民,等.先天性腎病綜合征1例報(bào)告及文獻(xiàn)復(fù)習(xí)[J].北京醫(yī)學(xué),2013,35(4):253256.

      [11]孟大川,王道靜,余自華,等.中國(guó)南方漢族人3個(gè)家族性激素耐藥型腎病綜合征家系CD2AP和NPHS1基因突變分析[J].實(shí)用兒科臨床雜志,2011,26(5): 329332+344.

      [12]Abid A,Khaliq S,Shahid S,et al.A spectrum of novel NPHS1 and NPHS2 gene mutations in pediatric nephrotic syndrome patients from Pakistan[J].Gene,2012,502(2):133137.

      [13]Santin S,GarcíaMaset R,Ruíz P,et al.Nephrin mutations cause childhoodand adultonset focal segmental glomerulosclerosis[J].Kidney Int,2009,76(12): 12681276.

      [14]Caridi G,Gigante M,Ravani P,et al.Clinical Features and LongTerm Outcome of Nephrotic Syndrome Associated with Heterozygous NPHS1 and NPHS2 Mutations[J].Clin J Am Soc Nephrol,2009,4(6): 10651072.

      [15]Buscher AK,Kranz B,Boscher R,et a1.Immunosuppression and renal outcomeincongenitaland pediatric steroid resistant nephrotic syndrome[J].Clin J Am Soc Nephrol,2010,5(11):20752084.

      [16]Dincel N,Mir S,Berdeli A,et a1.Does NPHS1 polymorphism modulate P118l mutation in NPHS2?[J].Saudi J Kidney Dis Transpl,2013,24(6):12101213.

      [17]Behbahan AG,Poorshiri B,Mortazavi F,et al.Derakhshan SM.NPHS1 gene mutations in children with Nephrotic Syndrome in northwest Iran[J].Pak J Biol Sci,2013,16(17):882886.

      [18]王道靜,余自華,孟大川,等.中國(guó)南方漢族散發(fā)性激素耐藥型腎病綜合征兒童NPHS1基因突變分析[J].中華腎臟病雜志,2012,28(2):95100.

      [19]封東寧,楊勇輝,余自華,等.散發(fā)性激素耐藥型腎病綜合征患兒30例足細(xì)胞基因突變分析[J].實(shí)用兒科臨床雜志,2012,27(5):327330.

      [20]Santin S,GarcíaMaset R,Ruíz P,et al.Nephrin mutations cause childhoodand adultonset focal segmental glomerulosclerosis[J].Kidney Int,2009,76(12):12681276.

      [21]Luo YZ,Wang C,Zeng L.Correlation between Chinese medicine syndromes and the NPHS1 gene and NPHS2 gene polymorphism as well as corticosteroid sensitivity in patients with minimal change disease[J].Zhong guo Zhong Xi Yi Jie He Za Zhi,2012,32(7):914917.

      [22]Godefroid N,Dahan K.Expanding the clinical spectrum of congenital nephrotic syndrome caused by NPHS1 mutations[J].Nephrol Dial Transplant,2010,25(9):28372839.

      [23]Santín S,Bullich G,TazónVega B,et al.Clinical utility of genetic testing in children and adults with steroidresistant nephrotic syndrome[J].Clin J Am Soc Nephrol,2011,6(5):11391148

      [24]Philippe A,Nevo F,Esquivel EL,et al.Nephrin mutationscan cause childhoodonset steroidresistant nephrotic sy ndrome[J].J Am Soc Nephrol,2008,19(10):18711878.

      [25]于力.兒童腎臟病與基因突變[J].臨床兒科雜志,2010,28(4):307311.

      (收稿日期:2014-01-15修回日期:2014-06-13)

      (編輯:潘明志)

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