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Determination of Iron(Ⅱ), Iron(Ⅲ) and Total Iron in Some β -Thalassemia Patients Using Different Analytical Techniques
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作者 Nabil Fakhre Dashty Ali 《Journal of Environmental Science and Engineering(B)》 2013年第5期304-307,共4页
There are many well-known analytical methods for determination of iron(Ⅱ) and iron(Ⅲ). Among these methods: Gravimetric, titrimetric, potentiometric, conductometric and batch and flow-injection spectrophotometr... There are many well-known analytical methods for determination of iron(Ⅱ) and iron(Ⅲ). Among these methods: Gravimetric, titrimetric, potentiometric, conductometric and batch and flow-injection spectrophotometric methods. In present study, two batch spectrophotometric, atomic absorption spectrometric and biolabo kit methods have been used for determination of iron(Ⅱ), iron(Ⅲ) and total iron. The present methods have the advantages of high sensitivity, low cost reagent, low operation cost, simplicity, speed and their applications for determination of iron(Ⅱ) and iron(Ⅲ) in some serum samples of normal human and fl-thalasemia patients in Erbil city. For the first time especially in Erbil city attempts were made to use zero, first and second derivative spectra to identify the serum samples of some β-thallasemia patients from the normal human serum samples due to the appearance and resolution of peaks in both cases. 展开更多
关键词 Determination IRON β-thalassemia patients different analytical techniques.
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罕见β-珠蛋白基因Codon 24(GGT>GGA)突变导致β-地中海贫血1例及文献分析
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作者 梁文雪 陈成 +2 位作者 李琦 陈萍 张学 《广西医科大学学报》 CAS 2024年第4期585-589,共5页
目的:分析罕见β-珠蛋白基因突变类型、血液学及临床特征。方法:收集疑为β-地中海贫血的病例120例。对病例进行全血细胞分类及计数、血红蛋白(Hb)电泳分析检测。用跨越断裂点PCR方法、荧光PCR熔解曲线方法、DNA测序等分析α-和β-珠蛋... 目的:分析罕见β-珠蛋白基因突变类型、血液学及临床特征。方法:收集疑为β-地中海贫血的病例120例。对病例进行全血细胞分类及计数、血红蛋白(Hb)电泳分析检测。用跨越断裂点PCR方法、荧光PCR熔解曲线方法、DNA测序等分析α-和β-珠蛋白基因突变类型。结果:120例β-地中海贫血病例中,检出1例为罕见β-珠蛋白基因突变,基因分析为Codon 24(GGT>GGA,HBB:c.75T>A)杂合子。该病例为男性,39岁,血常规检测显示:Hb 127.3 g/L,血红细胞(RBC)5.81×10^(12)/L,红细胞平均体积(MCV)70.29 fL,红细胞平均血红蛋白量(MCH)21.94 pg,红细胞平均血红蛋白浓度(MCHC)312.10 g/L。Hb分析显示Hb A_(2)4.5%,Hb F 0.4%。a-地中海贫血基因分析未发现常见的基因突变类型。结论:首次在国内发现罕见β-珠蛋白基因Codon 24(GGT>GGA,HBB:c.75T>A)突变导致β-地中海贫血。该病例在临床上易漏诊,应引起重视。 展开更多
关键词 Β-地中海贫血 Codon 24(GGT>GGA) 基因突变 临床表型
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β-珠蛋白生成障碍性贫血患者血清FABP4,FGF19水平表达及与预后的关系
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作者 陈艺心 潘锋 +5 位作者 徐娅 彭鑫 梁露 李茹靖 李聪 曾红鑫 《现代检验医学杂志》 CAS 2024年第5期96-101,共6页
目的研究β-珠蛋白生成障碍性贫血(beta-thalassaemia,β-TM)患者血清脂肪酸结合蛋白4(fatty acidbindingprotein 4,FABP4)、纤维细胞生长因子19(fibroblast growth factor 19,FGF19)表达及其与预后的关系。方法选取2018年1月~2020年8... 目的研究β-珠蛋白生成障碍性贫血(beta-thalassaemia,β-TM)患者血清脂肪酸结合蛋白4(fatty acidbindingprotein 4,FABP4)、纤维细胞生长因子19(fibroblast growth factor 19,FGF19)表达及其与预后的关系。方法选取2018年1月~2020年8月重庆大学附属黔江医院诊治的112例β-珠蛋白生成障碍性贫血患者为病例组,选取同期体检的60例健康人为对照组。采用酶联免疫吸附实验(ELISA)检测血清FABP4和FGF19水平。Logistic回归模型分析β-珠蛋白生成障碍性贫血患者预后影响因素。受试者工作特征(ROC)曲线分析血清FABP4和FGF19对β-珠蛋白生成障碍性贫血患者预后的预测价值。结果病例组患者血清FABP4(67.13±11.35μg/L)水平高于对照组(22.01±4.16μg/L),血清FGF19(104.24±21.46 ng/L)水平低于对照组(218.01±36.79 ng/L),差异均具有统计学意义(t=29.708,25.620,均P<0.05)。轻型组、中间型组及重型组患者血清FABP4水平(54.20±12.63μg/L,66.83±10.5μg/L,79.72±11.05μg/L)依次升高,而FGF19水平(122.53±22.36 ng/L,103.16±20.37 ng/L,86.53±18.14 ng/L)依次降低,差异具有统计学意义(F=39.701,24.231,均P<0.05)。相比于生存组,死亡组患者血清FGF19(62.80±22.09 ng/L vs 110.16±20.69 ng/L),血红蛋白、杂合子基因型比例(βCD17/βN,βCD41-42/βN)较低,而血清FABP4(116.69±12.30 ng/L vs 60.05±10.17 ng/L),铁蛋白及心脏增大比例较高,差异具有统计学意义(t/χ^(2)=4.436~18.981,均P<0.05)。FGF19(OR=0.634,95%CI:0.451~0.891)是β-珠蛋白生成障碍性贫血患者预后的独立保护因素(P<0.001),血清FABP4(OR=1.840,95%CI:1.193~2.838)为预后独立危险因素(P<0.001)。血清FABP4,FGF19联合对β-珠蛋白生成障碍性贫血患者预后评估的曲线下面积(95%CI)为0.897(0.853~0.951),大于单指标检测0.842(0.801~0.879)和0.814(0.762~0.858),差异具有统计学意义(Z=4.864,5.270,P=0.002,0.001)。结论β-珠蛋白生成障碍性贫血患者血清FABP4升高,FGF19降低。血清FABP4,FGF19联合检测对β-珠蛋白生成障碍性贫血患者预后具有较高的预测价值。 展开更多
关键词 Β-珠蛋白生成障碍性贫血 脂肪酸结合蛋白4 纤维细胞生长因子19
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毛细管电泳HbA+HbA2/HbA初筛联合血液学指标RDW筛查诊断新生儿β-地中海贫血的价值分析
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作者 何伟佳 黄倩文 +1 位作者 蒋红玲 王艳 《蛇志》 2024年第3期353-356,366,共5页
目的分析毛细管电泳HbA+HbA2/HbA联合RDW诊断新生儿β-地中海贫血的价值。方法选取2021年1月至2023年12月在我院分娩的2009例新生儿进行毛细管电泳、血液学指标及基因检查筛查β-地中海贫血,描述β-地中海贫血基因类型分布情况,比较非β... 目的分析毛细管电泳HbA+HbA2/HbA联合RDW诊断新生儿β-地中海贫血的价值。方法选取2021年1月至2023年12月在我院分娩的2009例新生儿进行毛细管电泳、血液学指标及基因检查筛查β-地中海贫血,描述β-地中海贫血基因类型分布情况,比较非β-地中海贫血组与β-地中海贫血组的毛细管电泳HbA、HbA2/HbA指标、血液学指标,分析筛检效能。结果基因检测β-地中海贫血阳性新生儿12例,总体检出率为0.60%,其中β-地中海贫血单纯杂合突变11例(91.67%),β-地中海贫血复合杂合突变1例(8.33%),以β(CD41-42)、β(IVS-Ⅱ-654)突变常见,分别占16.67%、16.67%。β-地中海贫血组新生儿HbA指标水平显著低于非β-地中海贫血组(P<0.05),β-地中海贫血组新生儿HbA2/HbA指标水平为(2.01±0.10)%,而非β-地中海贫血组新生儿未检测出HbA2。非β-地中海贫血组与β-地中海贫血组的MCV、MCH、MCHC、RBC、Hb水平比较,差异均无统计学意义(均P>0.05);β-地中海贫血组的RDW水平高于非β-地中海贫血组,差异有统计学意义(P<0.05)。毛细管电泳HbA+HbA2/HbA及联合RDW检测的阳性预测值、阴性预测值、灵敏度、特异度最高,分别为90.08%、88.34%、89.74%、86.23%。结论毛细管电泳HbA+HbA2/HbA初筛联合血液学指标(RDW)筛查新生儿β-地中海贫血的效能高,可弥补毛细管电泳HbA+HbA2/HbA筛查假阳性率高的缺点,值得临床推广应用。 展开更多
关键词 毛细管电泳法 血液学指标 Β-地中海贫血 新生儿
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深圳市宝安区873例β-地中海贫血携带者基因谱及血常规特征分析
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作者 罗茗月 陈旭 +3 位作者 严泽浩 沈楷 麦光兴 熊礼宽 《分子诊断与治疗杂志》 2024年第9期1742-1746,共5页
目的分析深圳市宝安区妇幼保健院873例β-地中海贫血(简称地贫)携带者基因谱及不同基因型携带者的血常规特征。方法对2017年1月至2020年12月于宝安区妇幼保健院就诊的873例女性进行血常规和地贫基因检测,采用血细胞分析仪检测红细胞计数... 目的分析深圳市宝安区妇幼保健院873例β-地中海贫血(简称地贫)携带者基因谱及不同基因型携带者的血常规特征。方法对2017年1月至2020年12月于宝安区妇幼保健院就诊的873例女性进行血常规和地贫基因检测,采用血细胞分析仪检测红细胞计数(RBC)、血红蛋白浓度(Hb)、平均红细胞体积(MCV)和平均红细胞血红蛋白含量(MCH),采用PCR-反向斑点杂交法检测非缺失型α-地贫和β-地贫,采用缺口聚合酶链反应(GAP-PCR)凝胶电泳法检测缺失型α-地贫。结果在755例β-地贫单纯杂合子携带者中检测到13种基因型,包括4种β^(+)-地贫、8种β^(0)-地贫和1种β^(E)-地贫。β^(E)-、β^(+)-和β^(0)-3组地贫携带者Hb、MCV和MCH依次降低,RBC依次增高,比较差异有统计学意义(P<0.05)。在43例α-地贫合并β^(+)-地贫携带者中检测到9种基因型,在75例α-地贫合并β^(0)-地贫携带者中检测到17种基因型。与β^(+)-地贫或β^(0)-地贫单纯杂合子相比,β^(+)-地贫或β^(0)-携带者合并α^(+)-或α^(0)-地贫时,Hb、MCV和MCH明显增高,比较差异有统计学意义(P<0.05),β^(0)-地贫携带者合并α^(0)-地贫时,Hb、MCV和MCH明显高于合并α^(+)-地贫,比较差异有统计学意义(P<0.05)。结论β-地贫携带者呈现明显的分子异质性,临床表现为小细胞低色素性贫血,但贫血程度差异性很大。合并α-地贫可缓解β-地贫携带者的贫血表现,β^(0)-地贫合并α^(0)-地贫比合并α^(+)-地贫表型更轻,在产前筛查中应予以重视,避免漏检。 展开更多
关键词 Β-地贫 异质性 合并α-地贫 血常规特征
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沙利度胺对β地贫患者生长发育和脏器参数的影响
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作者 林滔 石青峰 +3 位作者 庄燕妮 王利 罗琼 杨潍嘉 《川北医学院学报》 CAS 2024年第10期1356-1360,共5页
目的:探究沙利度胺对β地中海贫血患者身高增长和脏器参数的影响。方法:52例β地中海贫血患者予以沙利度胺治疗,同时进行为期2年的治疗随访,观察其治疗前后身高增长情况、第二性征发育、女性月经情况及肝脾超声和心脏超声、心脏MRI T2*... 目的:探究沙利度胺对β地中海贫血患者身高增长和脏器参数的影响。方法:52例β地中海贫血患者予以沙利度胺治疗,同时进行为期2年的治疗随访,观察其治疗前后身高增长情况、第二性征发育、女性月经情况及肝脾超声和心脏超声、心脏MRI T2*和肝脏MRI T2*。结果:52例患者中完成2年观察期的有48例,其中输血依赖型(TDT)34例,非输血依赖型(NTDT)14例。48例完成2年观察期的患者中,以其中28例<18岁的患者为观察对象,在身高方面,结果显示其在观察期内身高增长正常,与同龄人相当(P>0.05)。治疗前后第二性征发育迟缓及女性月经状态比较差异均无统计学意义(P>0.05)。与治疗前相比,患者治疗后肝脏、脾脏大小均未见明显改变(P>0.05);患者治疗后左心射血分数(LVEF)和三尖瓣反流速度(TRV)均未见明显改变(P>0.05);患者治疗后心脏T2*值和肝脏T2*值均增大(P<0.05)。结论:β地中海贫血患者采用沙利度胺治疗后,身高增长均正常,沙利度胺不影响第二性征发育,对女性月经可能无影响,肝脾肿大、LVEF和三尖瓣反流无明显改变,但心脏、肝脏铁沉积有所改善。 展开更多
关键词 Β地中海贫血 沙利度胺 身高增长 肝脾肿大 三尖瓣反流
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^(A)γ-珠蛋白基因启动子区域-114~-102缺失突变导致非缺失型遗传性持续性胎儿血红蛋白综合征的研究
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作者 罗丹 柴子萱 +2 位作者 肖璇 朱恒莹 陈萍 《广西医科大学学报》 CAS 2024年第6期905-909,共5页
目的:研究^(A)γ-珠蛋白基因启动子区域-114~-102缺失突变病例的基因突变特点、血液学表型及临床表型。方法:选取2022年3月至2023年12月在广西医科大学第一附属医院检查地中海贫血的病例4例。血红蛋白(Hb)分析仪和血细胞分析仪检测全血... 目的:研究^(A)γ-珠蛋白基因启动子区域-114~-102缺失突变病例的基因突变特点、血液学表型及临床表型。方法:选取2022年3月至2023年12月在广西医科大学第一附属医院检查地中海贫血的病例4例。血红蛋白(Hb)分析仪和血细胞分析仪检测全血样本,分析Hb和血常规。Sanger测序法与荧光PCR熔解曲线法检测γ-珠蛋白基因启动子区突变和β-珠蛋白基因突变。结果:共检出^(A)γ-114~-102缺失杂合子4例,Hb分析显示血红蛋白F(Hb F)水平为11.2%~37.8%,血红蛋白A2(Hb A2)水平为2.0%~3.3%,血常规分析显示Hb水平为67~114 g/L,红细胞计数(RBC)为(2.33~4.1)×10^(12)/L,平均红细胞体积(MCV)为84.02~91.9 fL,平均红细胞血红蛋白(MCH)为27.8~29.7 pg。γ-珠蛋白基因及β-珠蛋白基因突变检测结果表明:4例病例含有^(A)γ-114~-102缺失杂合子,其中2例合并有^(G)γ-158C>T突变杂合子;4例病例均合并有β-珠蛋白基因突变,基因型分别为Codon 41-42(-TTCT)杂合子突变、Codon 41-42(-TTCT)纯合子突变、IVS-Ⅱ-654(C>T)复合Codon 41-42(-TTCT)突变和Codon17(A>T)复合Codon 71-72(+A)突变。结论:首次在中国人群中发现^(A)γ-114~-102缺失杂合子,且复合β-地中海贫血的病例,临床表现为轻度或中度贫血。^(A)γ-114~-102缺失突变导致非缺失型遗传性持续性胎儿血红蛋白综合征(nd-HPFH),能够减轻β-地中海贫血患者的贫血程度。 展开更多
关键词 γ-珠蛋白基因启动子 非缺失型遗传性持续性胎儿血红蛋白综合征 Β-地中海贫血
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Amelioration of β^(654)-thalassemia in mouse model with the knockdown of aberrantly spliced β-globin mRNA 被引量:1
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作者 Shuyang Xie Wei Li Zhaorui Ren Jingzhi Zhang Xinbin Guo Shu Wang Shuzhen Huang Fanyi Zeng Yi-Tao Zeng 《Journal of Genetics and Genomics》 SCIE CAS CSCD 北大核心 2008年第10期595-601,共7页
Large amounts of aberrantly spliced mRNA from the β^654 allele was present in erythroid cells, which might impair the erythropoiesis. A therapeutic strategy for β-thalassemia was explored by knocking down the aberra... Large amounts of aberrantly spliced mRNA from the β^654 allele was present in erythroid cells, which might impair the erythropoiesis. A therapeutic strategy for β-thalassemia was explored by knocking down the aberrantly spliced mRNA of β-globin. Lentiviral vector with siRNA fragment targets on the specific portion of β^654-globin aberrantly spliced pre-mRNA was constructed. In HeLa β^654 cells, the siRNA vector could reduce approximately 60% of aberrantly spliced mRNA, which was assessed by RT-PCR and qRT-PCR. Furthermore, a disease model of β^654 thalassemia mice with lentiviral-mediated siRNA was produced by subzonal injection (named Hβi-Hbb^th-4/Hbb^+ transgenic mice). Our results showed that the hemotological parameters were improved in Hβi-Hbb^th-4/Hbb^+ transgenic mice. This study provides a potential way for β^654-thalassemia therapy by knocking down the aberrantly spliced β-globin mRNA, whilst supporting that the aberrantly spliced β-globin mRNA may aggravate the disease. 展开更多
关键词 Β-thalassemia small interfering RNA (siRNA) HEMOGLOBIN
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Detection of rare mutation of β-thalassemia by direct sequence analysis of the PCR products
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作者 单越新 张基增 徐钤 《Journal of Medical Colleges of PLA(China)》 CAS 1993年第3期235-241,共7页
A technique of direct sequence analysis of β-globin gene with the products of amplifi-cation by polymerase chain reaction (PCR) was reported and a case of β-thalassemia with therare mutation in Chinese,‘codon 14/15... A technique of direct sequence analysis of β-globin gene with the products of amplifi-cation by polymerase chain reaction (PCR) was reported and a case of β-thalassemia with therare mutation in Chinese,‘codon 14/15 (+G)’ was detected by this method.After the se-quence of the mutation site was determined,an analysis of the restriction map of the gene anddot blot hybridization with radioactive allele specific oligonucleotide probe was designed to con-firm the result of DNA sequencing. 展开更多
关键词 POLYMERASE CHAIN reaction(PCR) MUTATION DNA sequence ANALYSIS Β-thalassemia
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A rapid reverse dot blot assay for all 18 β-thalassemia mutations in Chinese population
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作者 张基增 徐湘民 +1 位作者 马维芳 单越新 《Journal of Medical Colleges of PLA(China)》 CAS 1993年第3期213-219,共7页
A set of allele-specific oligonucleotide (ASO) probes used for detecting all 18 β-tha-lassemia mutations found in Chinese was immobilized on two strips of Biodyne C membrane;one containing 7 pairs of oligonucleotide ... A set of allele-specific oligonucleotide (ASO) probes used for detecting all 18 β-tha-lassemia mutations found in Chinese was immobilized on two strips of Biodyne C membrane;one containing 7 pairs of oligonucleotide probes specific for the most commonly found mutant al-leles,and the other containing the remaining 11 pairs of ASO_s specific for the less commonlyfound.The membranes were hybridized with β-globin sequences amplified by polymerase chainreaction (PCR) with biotinylated primers,and then treated with Streptavidin-POD conjugateand substrates for color development.The method has been applied successfully to the detectionof all 18 Chinese β-thalassemia mutations and prenatal diagnosis of two high-risk pregnancies ofβ-thalassemia.Patients with homozygous,heterozygous and compound heterozygous alleles ofthese mutations and normal individuals could be easily distinguished by the present method.Us-ing the immobilized-probe format (reverse dot blot),it was able to screen simultaneously multi-ple β-thalassemia mutations of a DNA sample by performing hybridization only once.This assayis simple,rapid and independent of radio-isotopes and can be appplied for all 18 β-thalassemiamutations so far found in Chinese population.It is considered that this method may be usefulfor gene frequency investigation of large numbers of β-thalassemia DNA samples and used as aroutine method in the clinic laboratory. 展开更多
关键词 Β-thalassemia REVERSE dot blot(RDB) gene diagnosis POLYMERASE chain reaction(PCR)
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Therapeutic Drug Monitoring of Chelating Agent Deferoxamine for <i>β</i>-Thalassemia Major Patients
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作者 Rawa Ratha Tagreed Altaei 《International Journal of Clinical Medicine》 2013年第8期331-342,共12页
Therapeutic drug monitoring is used to prevent or decrease the risk associated with the toxic effects of medication. This study aims to evaluate the potential advantages of Therapeutic Drug Monitoring (TDM) of subcuta... Therapeutic drug monitoring is used to prevent or decrease the risk associated with the toxic effects of medication. This study aims to evaluate the potential advantages of Therapeutic Drug Monitoring (TDM) of subcutaneous Deferoxamine injection and prevention of clinical problems in β-thalassaemia major patients. Patients & Methods: Fifty-four thalassemia patients were allocated into two groups;missing, and not missing deferoxamine dose. TDM of Deferoxamine injection and it clinical outcomes was critically studied under the following subheadings: assessment of the adequacy of Deferoxamine usage, serum peak and trough concentrations of Deferoxamine and ferroxamine with needed pharmacokinetics, cardiac parameters and biomarkers, biochemical and hematological indices, adverse effects/toxicity, urinary assessment of Fe, Zn, selenium, and copper levels, compliance to treatment, dose adjustment in correlation to therapeutic index and life style. Results: Demographic data showed no significant difference. Peak plasma concentrations were 144.83±69 and 43.54±39.16 μg/L, while trough concentrations were 33±26.32 and 31.13±21.58 μg/L of Deferoxamine and ferroxamine, respectively. The elimination rate constant was 0.0237±0.00029 min-1, half-life was 34 min, and distribution volume was 0.93±0.078. Although cardiac parameters showed no significant differences, there were significant differences in CK-MB, and hsCRP levels;troponin I value could not be detected. Biochemical and hematological studies showed significant differences in Ferritin B, urea, SGPT, SGOT, alkaline phosphatase, serum albumin and serum calcium. Assessment of adverse effects/toxicity showed significant differences. The correlation of serum ferritin to therapeutic index, and the life style including Vitamin C and/or E administration were assessed for the compliance to treatment. Conclusion: Therapeutic monitoring of chelation therapy by Deferoxamine in β-thalassemia patients is necessary to ensure effective treatment, compliance, and to avoid adverse side effects and toxicity. 展开更多
关键词 THERAPEUTIC DRUG Monitoring DEFEROXAMINE Β-thalassemia Major
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Co-Inheritance of Beta &Delta-Globin Gene (HbYialousa) Mutations in an Iranian <i>β</i>-Thalassemia Carrier
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作者 Atefeh Valaei Farnaz Eghbalpour +4 位作者 Zahra Kainimoghaddam Fatemeh Bayat Maryam Taghavi Basmanj Morteza Karimipoor Sirous Zeinali 《International Journal of Clinical Medicine》 2012年第7期633-636,共4页
Introduction: Beta-thalassemia is characterized by absence or reduced synthesis of the β-globin. Carriers of β-thalas- semia, typically have microcytic hypochromic anemia and elevated hemoglobin HbA2 and normal HbF ... Introduction: Beta-thalassemia is characterized by absence or reduced synthesis of the β-globin. Carriers of β-thalas- semia, typically have microcytic hypochromic anemia and elevated hemoglobin HbA2 and normal HbF level. On the other hand carriers of severe alpha-thalassemia also have similar CBC parameters to that of β-thalassemia with normal HbA2 level. Co-presence of mutations in the β-globin and delta-globin genes (point mutations or deletions) usually give normal HbA2 and elevated HbF level. We report a β-thal carrier with normal level of HbA2 and increased level of HbF who had a point mutation in CD39 on the beta-globin gene and a point mutation in CD27 on the δ-globin gene named Hb-Yialousa. Materials & Methods: An individual with low hematological indices, normal HbA2 and elevated HbF was referred to our center as routine premarital screening program. Mutations in the β-globin and δ-globin genes were screened using ARMS and sequencing methods. Results: The mutation in β- and δ-globin genes were identified as CD39 and CD27 (HbYialousa) respectively. No point mutation or deletion in α-globin gene was identified. Discussion: We showed that normal HBA2 with elevated HbF level is due to co-inheritance of delta-globin gene mutation with mutation in the β-globin gene. When screening for β-thalassemia, one has to either rule out presence of α-globin gene mutation of mutation in the delta-globin gene. 展开更多
关键词 δ-Globin GENE Β-thalassemia HbYialousa Β-GLOBIN GENE CD39
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Ischemia Modified Albumin and C-Reactive Protein in Children with β-Thalassemia Major
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作者 Wessam M. Moftah Ensaf K. Mohammed +1 位作者 Amal A. Morsy Asmaa A. Ibrahim 《Open Journal of Pediatrics》 2020年第3期452-462,共11页
<strong>Background:</strong> <span style="font-family:""><span style="font-family:Verdana;">Beta-thalassemia is a hereditary haemoglobinopathy caused by defective hemog... <strong>Background:</strong> <span style="font-family:""><span style="font-family:Verdana;">Beta-thalassemia is a hereditary haemoglobinopathy caused by defective hemoglobin (Hb) </span><i><span style="font-family:Verdana;">β</span></i><span style="font-family:Verdana;">-globin synthesis, leading to excess </span><i><span style="font-family:Verdana;">α</span></i><span style="font-family:Verdana;">-globin chains that cause hemolysis and impair erythropoiesis. Ischemia modified albumin (IMA) is not a signal protein and not generated in pro-inflammatory state alone but rather an end product of oxidative stress.</span><b><span style="font-family:Verdana;"> Objectives: </span></b><span style="font-family:Verdana;">The aim of the study was to evaluate ischemia modified albumin (IMA) and C-reactive protein (CRP) in children with </span><i><span style="font-family:Verdana;">β</span></i><span style="font-family:Verdana;">-thalassemia major and its relation to different iron chelators. </span><b><span style="font-family:Verdana;">Patients and Methods: </span></b><span style="font-family:Verdana;">The study was carried on 40 children diagnosed as beta-thalassemia major recruited from the outpatient clinic and the pediatric department, at Al-Zahraa University Hospital, Faculty of medicine for Girls, Al-Azhar University and EL Minia Insurance Hospital. They were 20 male and 20 female, aged from 4 - 11 years. Another 40 apparently healthy children age and sex matched as control group. CRP and IMA were determined for all participants.</span><b><span style="font-family:Verdana;"> Results:</span></b><span style="font-family:Verdana;"> There were significant increases in serum CRP, IMA and ferritin levels in patients group compared to control group. There were significant decreases of IMA and CRP levels of thalassemic patients on chelation deferiprone (DFP) compared to deferasirox (DFX) P-value (<0.01) for each. There was a significant positive correlation between serum ferritin and both CRP and IMA levels in thalassemic children (r = 0.40, p < 0.01), (r = 0.44, p < 0.01) respectively. There was a significant positive correlation between IMA and CRP in beta-thalassemic patients (r = 0.31, p = 0.02). </span><b><span style="font-family:Verdana;">Conclusion: </span></b><span style="font-family:Verdana;">IMA, CRP and Serum ferritin were higher in children with </span><i><span style="font-family:Verdana;">β</span></i><span style="font-family:Verdana;">-thalassemia major than controls. Moreover, IMA and CRP levels in thalassemic children on deferiprone (DFP) were significantly lower compared with children on deferasirox (DFX). So it could be considered as useful markers in the follow up assessment of thalassemic patients for early detection of complications.</span></span> 展开更多
关键词 β-thalassemia Major Ischemia Modified Albumin CRP Oxidative Stress
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Impact of Ferritin Load on Gonadal Reserve among Regular Transfused β-Thalassemia
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作者 Hasnaa A. Abo-Elwafa Safa A. Hamid +1 位作者 Mena M. Heshmat Zahra S. Ahmed 《Open Journal of Blood Diseases》 2017年第2期65-78,共14页
Background: Iron overload in association with persistent anemia is responsible for endocrine dysfunction in β-thalassemia patients, blood transfusion combined with iron-chelation can modify life quality in these chil... Background: Iron overload in association with persistent anemia is responsible for endocrine dysfunction in β-thalassemia patients, blood transfusion combined with iron-chelation can modify life quality in these children, but they tend to suffer from delayed maturity and endocrine dysfunction. Aim: This study aims to correlate degree of hypogonadism to ferritin load in regular transfused β-thalassemia patients. Methods: It was carried out on 30 β-thalassemia major (TM) patients aged 12 to 18 years, puberty was assessed clinically, blood picture on Cell-Dyne 2700, ferritin level and pattern of FSH, LH, testosterone and estradiol before and after gonadotropin (GnRH) analogue stimulation test, they were determined on ARCHITECT ABBOTT system. Results: Twenty patients had not yet achieved puberty, FSH level was 1.45 ± 1.88 mIU/ml before (GnRH) analogue and 3.78 ± 4.19 mIU/ml after 4 hours of injection. LH level was 1.91 ± 4.79 mIU/ml before (GnRH) test, while after 4 hours it was 6.52 ± 7.50 mIU/ml, 88.24% of males had low serum testosterone level, 84.6% of girls had low serum estradiol level, FSH, LH, estradiol, testosterone before and after GNRH analogue were statistically insignificant, mean ferritin level was 3344.32 ± 1142.142 ng/ml, with insignificant correlation to hormonal pattern before and after GnRH therapy. Conclusion: Iron overload and hypogonadism are the presenting data in this study, insignificant correlation between ferritin level and hormonal reserve pattern, there may be another etiology in pathophysiology of low gonadal reserve such as severe anemia, chronic disease and may be genetic predisposition underlying susceptibility to iron toxicity, which need further investigations. 展开更多
关键词 FERRITIN Β-thalassemia HYPOGONADISM
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Myeloproliferative neoplasms complicated withβ-thalassemia:Two case report
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作者 Neng-Wen Xu Lin-Jie Li 《World Journal of Clinical Cases》 SCIE 2022年第29期10655-10662,共8页
BACKGROUND BCR-ABL-negative myeloproliferative neoplasms(MPNs)are clonal hematopoietic stem cell disorders characterized by the proliferation of one or more myeloid lineages and by mutually exclusive JAK2 V617F,CALR,a... BACKGROUND BCR-ABL-negative myeloproliferative neoplasms(MPNs)are clonal hematopoietic stem cell disorders characterized by the proliferation of one or more myeloid lineages and by mutually exclusive JAK2 V617F,CALR,and MPL[A1]mutations.The combination of MPN and thalassemia is extremely unusual.Several cases with myeloproliferative neoplasms andβ-thalassemia have been reported.However,these have not been extensively reviewed.The present report describes two cases of myeloproliferative neoplasms complicated withβ-thalassemia and reviews all similar cases reported in the literature.CASE SUMMARY We report two patients who were diagnosed with myeloproliferative neoplasms complicated withβ-thalassemia.Both patients had abnormal increases in platelet counts.Based on bone marrow pathology and molecular biology assessment,we made the diagnosis of myeloproliferative neoplasms complicated withβ-thalassemia.The female patient was given hydroxyurea and interferon,which enabled good control of her blood counts;the male patient was given ruxolitinib tablets,thalidomide tablets,and interferon to control the condition,but the patient poorly responded to drug treatment and died of gastrointestinal bleeding six months later.CONCLUSION Given the findings of our cases and the literature review,we hypothesize that myeloproliferative neoplasms complicated withβ-thalassemia can lead to rapid disease progression and a poor prognosis. 展开更多
关键词 Myeloproliferative Neoplasms Β-thalassemia Somatic gene mutation Germline gene mutation Case report
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Direct antiglobulin test-negative autoimmune hemolytic anemia in a patient withβ-thalassemia minor during pregnancy:A case report
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作者 Yang Zhou Yi-Ling Ding +2 位作者 Li-Juan Zhang Mei Peng Jian Huang 《World Journal of Clinical Cases》 SCIE 2022年第4期1388-1393,共6页
BACKGROUND Severe refractory anemia during pregnancy can cause serious maternal and fetal complications.If the cause cannot be identified in time and accurately,blind symptomatic support treatment may cause serious ec... BACKGROUND Severe refractory anemia during pregnancy can cause serious maternal and fetal complications.If the cause cannot be identified in time and accurately,blind symptomatic support treatment may cause serious economic burden.Thalassemia minor pregnancy is commonly considered uneventful,and the condition of anemia rarely progresses during pregnancy.Autoimmune hemolytic anemia(AIHA)is rare during pregnancy with no exact incidence available.CASE SUMMARY We report the case of a 30-year-oldβ-thalassemia minor multiparous patient experiencing severe refractory anemia throughout pregnancy.We monitored the patient closely,carried out a full differential diagnosis,made a diagnosis of direct antiglobulin test-negative AIHA,and treated her with prednisone and intravenous immunoglobulin.The patient gave birth to a healthy full-term baby.CONCLUSION Coombs-negative AIHA should be suspected in cases of severe hemolytic anemia in pregnant patients with and without other hematological diseases. 展开更多
关键词 Maternal anemia β-thalassemia minor Autoimmune hemolytic anemia Direct antiglobulin test PREGNANCY Case report
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构建重型β地中海贫血患者移植后出现巨细胞病毒感染风险的预测模型 被引量:2
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作者 潘霖 谢燕妮 +5 位作者 甘钊萍 肖鸿文 黄语妹 杨高辉 刘容容 赖永榕 《广西医科大学学报》 CAS 2023年第4期657-662,共6页
目的:构建列线图预测模型以预测重型β地中海贫血患者移植后出现巨细胞病毒(CMV)感染的风险,评估模型的预测价值。方法:收集2020年7月至2022年6月在广西医科大学第一附属医院血液内科接受造血干细胞移植的重型β地中海贫血患者的临床资... 目的:构建列线图预测模型以预测重型β地中海贫血患者移植后出现巨细胞病毒(CMV)感染的风险,评估模型的预测价值。方法:收集2020年7月至2022年6月在广西医科大学第一附属医院血液内科接受造血干细胞移植的重型β地中海贫血患者的临床资料,以出现CMV感染为结局分为感染组和未感染组,通过独立样本t检验、非参数检验、卡方检验、LASSO回归方法确定纳入列线图模型的预测指标。通过受试者工作特征曲线(ROC)、校准曲线、C指数和决策曲线分析评估和验证模型的价值,并通过Bootstrap方法进行内部验证。结果:年龄、HLA配型、环孢素A、血清铁蛋白、CD34、急性移植物抗宿主病(aGVHP)是构建重型β地中海贫血移植后出现CMV感染的列线图模型的预测指标。列线图的C指数为0.682(95%CI:61.0%~75.4%),内部验证的C指数为0.644,ROC曲线下面积0.682,决策曲线分析结果为0.09~0.83。结论:首次构建以年龄、HLA配型、环孢素A、血清铁蛋白、CD34、急性移植物抗宿主病为评分依据的列线图预测模型,该模型预测重型β地中海贫血患者移植后出现CMV感染风险的效果良好,有利于优化患者的临床诊疗,更好地提高患者的生活质量。 展开更多
关键词 重型Β地中海贫血 造血干细胞移植 巨细胞病毒感染 列线图
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重型β地中海贫血患儿移植前后肠道菌群变化研究
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作者 闻静 余阅 +6 位作者 杨春兰 吕佳忆 宋欣平 李越 张小玲 王晓东 刘四喜 《临床儿科杂志》 CAS CSCD 北大核心 2023年第11期833-838,共6页
目的了解重型β地中海贫血(β-TM)患儿造血干细胞移植前后不同阶段肠道菌群改变及其影响因素。方法选择2019年11月至2020年6月在血液肿瘤科行造血干细胞移植的确诊β-TM的患儿作为研究对象。收集移植启动前期(A组)、清洁肠道期(B组)、... 目的了解重型β地中海贫血(β-TM)患儿造血干细胞移植前后不同阶段肠道菌群改变及其影响因素。方法选择2019年11月至2020年6月在血液肿瘤科行造血干细胞移植的确诊β-TM的患儿作为研究对象。收集移植启动前期(A组)、清洁肠道期(B组)、预处理期(C组)、干细胞输注期(D组)及移植后细胞植入期(E组)的粪便样本。利用16SrDNA基因V4区域的Illumina HiSeq测序系统测序粪便样本。结果纳入37例β-TM患儿,男27例、女10例,中位年龄7.5(3.0~17.3)岁。最终纳入分析共96份样本,A组28份、B组17份、C组18份、D组21份、E组12份。A组和B组肠道菌群构成占比前两位为厚壁菌门、拟杆菌门,C、D、E组菌群占比前两位为变形菌门及拟杆菌门。5组之间厚壁菌门、变形菌门、拟杆菌门、梭菌门、放线菌门、疣状菌门、蓝菌门的丰度差异均有统计学意义(P<0.05)。利用Chao指数比较移植不同时期肠道菌群Alpha丰度。A组Chao指数为225.9(182.0~260.5),B组为234.6(193.0~311.3),C组为127.6(81.1~180.0),D组为96.8(71.1~139.9),E组为122.7(97.5~142.7),5组之间差异有统计学意义(P<0.001)。利用Shannon指数预测移肠道菌群Alpha多样性。A组Shannon指数为2.9(2.4~3.3),B组为2.2(1.6~2.9)、C组为1.4(1.2~2.0)、D组为2.0(1.4~2.3)、E组为0.9(0.6~2.2),5组之间差异有统计学意义(P<0.001)。万古霉素、亚胺培南-西司他丁以及其他类型广谱抗菌药物三组之间肠道菌群丰度与多样性差异无统计学意义(P>0.05)。结论造血干细胞移植术对β-TM患儿肠道菌群的组成有较大影响;清洁肠道方案对肠道菌群的丰度影响不大;肠道菌群丰度及多样性在移植后早期不能恢复重建;在造血干细胞移植过程中暂无法依据肠道菌群来优化选择抗生素种类。 展开更多
关键词 肠道菌群 重型Β地中海贫血 造血干细胞移植 儿童
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重型β地中海贫血儿童异基因造血干细胞移植后并发出血性膀胱炎的危险因素分析
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作者 陈晓玲 罗小娟 +4 位作者 曹科 黄涛 罗远桂 杨春兰 陈运生 《中国当代儿科杂志》 CAS CSCD 北大核心 2023年第10期1046-1051,共6页
目的探讨重型β地中海贫血(β-thalassemia major,TM)患儿异基因造血干细胞移植(allogeneic hematopoietic stem cell transplantation,allo-HSCT)后并发出血性膀胱炎(hemorrhagic cystitis,HC)的危险因素。方法回顾性分析2021年1月-202... 目的探讨重型β地中海贫血(β-thalassemia major,TM)患儿异基因造血干细胞移植(allogeneic hematopoietic stem cell transplantation,allo-HSCT)后并发出血性膀胱炎(hemorrhagic cystitis,HC)的危险因素。方法回顾性分析2021年1月-2022年11月在深圳市儿童医院进行allo-HSCT的247例TM患儿的临床资料,以术后是否并发HC,分为HC组(91例)和非HC组(156例),采用多因素logistic回归分析探讨HC发生的危险因素,并采用受试者操作特征曲线分析相关因素预测HC的效能。结果247例allo-HSCT TM患儿中,HC发生率为36.8%(91/247)。单因素分析显示,年龄、供受者血型不一致、发生急性移植物抗宿主病(acute graft-versus-host disease,aGVHD)、尿BK病毒核酸(BK virus deoxyribonucleic acid,BKV-DNA)阳性和≥2种病毒感染与患儿allo-HSCT后并发HC有关(P<0.05)。多因素分析显示,供受者血型不一致(OR=3.171,95%CI:1.538~6.539)、发生aGVHD(OR=2.581,95%CI:1.125~5.918)和尿BKV-DNA阳性(OR=21.878,95%CI:9.633~49.687)是allo-HSCT TM患儿并发HC的独立危险因素。受试者操作特征曲线分析显示,单一尿BKV-DNA阳性或联合其他2种危险因素(发生aGVHD、供受者血型不一致)预测allo-HSCT后并发HC具有一定的准确性(曲线下面积>0.8,P<0.05)。结论供受者血型不一致、发生aGVHD和尿BKV-DNA阳性是TM患儿allo-HSCT后并发HC的独立危险因素,定期监测尿BKV-DNA对HC的早期诊断及治疗具有积极意义。 展开更多
关键词 重型Β地中海贫血 异基因造血干细胞移植 出血性膀胱炎 危险因素 儿童
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罕见β-珠蛋白基因突变导致儿童β-地中海贫血的研究
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作者 吕璐玙 林伟雄 +2 位作者 肖璇 陈萍 张学 《广西医科大学学报》 CAS 2023年第6期906-910,共5页
目的:研究儿童罕见β-地中海贫血(β-地贫)的β-珠蛋白基因突变类型、血液学特征和临床表现。方法:选取广西医科大学第一附属医院2022年1—12月检测地中海贫血的病例。血细胞分析仪行血常规检测,高效液相色谱法行血红蛋白(Hb)分析;跨越... 目的:研究儿童罕见β-地中海贫血(β-地贫)的β-珠蛋白基因突变类型、血液学特征和临床表现。方法:选取广西医科大学第一附属医院2022年1—12月检测地中海贫血的病例。血细胞分析仪行血常规检测,高效液相色谱法行血红蛋白(Hb)分析;跨越断裂点聚合酶链反应(Gap-PCR)法、荧光PCR熔解曲线法和DNA测序检测α-地中海贫血(α-地贫)和β-地贫基因突变。结果:共检出99例β-地贫患儿,其中2例为罕见β-珠蛋白基因突变导致β-地贫的患儿。病例1为1岁女患儿,轻度贫血,血常规示Hb 101.00 g/L,红细胞计数(RBC)5.43×10^(12)/L,红细胞平均体积(MCV)56.90 fL,红细胞平均血红蛋白量(MCH)18.60 pg,红细胞平均血红蛋白浓度(MCHC)327.00 g/L,红细胞比容(HCT)0.31 L/L和红细胞体积分布宽度(RDW)0.19;Hb分析结果示Hb A25.70%,Hb F 2.60%。基因分析及DNA测序结果显示β-珠蛋白基因IVS-Ⅰ-2(T>C)突变杂合子。病例2为6岁男孩,轻度贫血,血常规示Hb 94.90 g/L,RBC 4.97×10^(12)/L,MCV 59.97 fL,MCH 19.11 pg,MCHC 318.70 g/L,HCT 0.30 L/L,RDW 0.15;Hb分析结果示Hb A25.80%,Hb F 1.90%。基因分析及DNA测序结果显示β-珠蛋白基因CD95(+A)杂合子突变。结论:首次在国内发现β-珠蛋白基因CD95(+A)杂合子突变导致β-地贫的患儿,临床表现为轻度贫血,Hb A2水平增高;首次报道国内儿童β-珠蛋白基因IVS-Ⅰ-2(T>C)杂合子β-地贫的血液学特征、Hb分析和临床表现。这两种β-地贫基因突变类型在国内较罕见,提示临床上容易漏诊。 展开更多
关键词 Β-地中海贫血 罕见突变 临床表现 儿童
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