目的:探讨免疫球蛋白重链(IgH)基因重排在多发性骨髓瘤(MM)自体造血干细胞移植(auto-HSCT)后微小残留病监测中的价值。方法:收集2018年-2022年于武汉市第一医院血液内科接受auto-HSCT的26例MM患者的临床资料,通过多重PCR联合毛细管电泳...目的:探讨免疫球蛋白重链(IgH)基因重排在多发性骨髓瘤(MM)自体造血干细胞移植(auto-HSCT)后微小残留病监测中的价值。方法:收集2018年-2022年于武汉市第一医院血液内科接受auto-HSCT的26例MM患者的临床资料,通过多重PCR联合毛细管电泳片段分析法检测IgH重排来评价微小残留病(MRD),对疾病的转归进行相关统计学分析。结果:全部26例MM患者中,男性18例,女性8例,中位年龄59(41-70)岁,移植后中位随访时间33(7-52)个月。与骨髓IgH重排阴性组(17例)比较,移植前骨髓IgH重排阳性(9例)患者移植后3个月达到CR和sCR疗效的比例更低(1/9 vs 14/17),移植后缓解持续的时间(DOR)更短(10.78±4.35 vs 15.88±5.22个月),两组DOR差异有统计学意义(P<0.05);与外周血干细胞采集物IgH重排阴性组(21例)比较,外周血干细胞采集物IgH重排阳性(5例)患者移植后3个月达到CR和sCR的比例更低(0/5 vs 15/21),移植后缓解持续的时间(DOR)更短(9.60±4.83 vs 15.19±5.11个月),两组DOR差异有统计学意义(P<0.05)。在随访期内,移植前骨髓IgH重排阳性的患者有5例(5/9)死亡,IgH重排阴性患者均存活;外周血干细胞采集物IgH重排阳性患者有4例(4/5)死亡,IgH重排阴性患者有1例死亡(1/21)。无论是骨髓还是外周血干细胞采集物标本,IgH重排阳性患者移植后生存时间较IgH重排阴性患者更短(P<0.05)。Logistic回归分析结果显示,性别、疾病分期、初诊时骨髓涂片浆细胞比例、干细胞动员方案、移植前疗效评价(≥CR和<CR)、CD34+细胞计数对移植前骨髓及干细胞采集物IgH重排均无影响(P>0.05)。结论:通过检测接受auto-HSCT的MM患者IgH重排,可以进一步评价MRD的深度,对疾病的疗效及预后判断有一定的指导意义。展开更多
Liquid crystals containing phenylpyrimidine units are the fascination condensed state of soft matter with unique electrical, optical and mechanical properties. In this paper, a novel and efficient route was reported f...Liquid crystals containing phenylpyrimidine units are the fascination condensed state of soft matter with unique electrical, optical and mechanical properties. In this paper, a novel and efficient route was reported for the synthesis of N-（3-（dimethylamino）-2-（4-ethoxyphenyl）allylidene）-N-methylmethanaminium perchlorate by the WillgerodtKindler reaction, which can be further applied to prepare liquid crystals containing phenylpyrimidine units. The product was confirmed by JHNMR, MS, FT-IR and elemental analysis. The experimental conditions of the Willgerodt-Kindler reaction were also studied and the results show that the yield of p-ethoxyphenyl-acetic acid increased remarkably with a reaction time up to 60 rain, then decreased due to carbonization. On the other hand, the yield was also influenced by microwave power. It increased from 20.6 % to 78.8 % with a rise in the microwave power from 250 W to 450 W, but the product was carbonized at 640 W.展开更多
目的探讨伴有MYC基因重排和11q异常的高级别B细胞淋巴瘤(high grade B cell lymphoma with concurrent MYC rearrangement and 11q aberrations,HGBCL-MYC-11q)的临床病理特征、分子遗传学特征、治疗及预后。方法收集3例HGBCL-MYC-11q...目的探讨伴有MYC基因重排和11q异常的高级别B细胞淋巴瘤(high grade B cell lymphoma with concurrent MYC rearrangement and 11q aberrations,HGBCL-MYC-11q)的临床病理特征、分子遗传学特征、治疗及预后。方法收集3例HGBCL-MYC-11q的临床资料,行HE、免疫组化EnVision法染色、EBER原位杂交和FISH检测,并复习相关文献。结果患者均为男性,年龄分别为10、61和74岁。Ann Arbor分期均为Ⅳ期。3例均为活检,分别发生于鼻咽部、上咽部和回盲部。3例形态学相似,肿瘤细胞弥漫浸润性生长,细胞中等大或中等偏大,形态较单一,细胞核圆形到稍不规则,染色质细腻,核分裂象易见;1例局灶可见坏死;1例“星空”现象明显。肿瘤细胞均表达CD20、BCL6和MUM1;2例表达CD10,2例表达BCL2;Ki67增殖指数高(例1、例3近100%,例2约70%);不表达CD3、CD30和TDT;EBER原位杂交检测均为阴性。FISH检测3例均见C-MYC基因重排及11q异常,其中1例仅见11q23.3扩增,1例仅见11q24.3缺失。随访时间1~18个月,1例死亡,2例带病生存。结论HGBCL-MYC-11q少见,形态学类似Burkitt淋巴瘤/高级别B细胞淋巴瘤,但同时伴有MYC基因重排和11q异常,应加强对该疾病的认识,提高对这类疾病的精准诊断及鉴别诊断。展开更多
文摘目的:探讨免疫球蛋白重链(IgH)基因重排在多发性骨髓瘤(MM)自体造血干细胞移植(auto-HSCT)后微小残留病监测中的价值。方法:收集2018年-2022年于武汉市第一医院血液内科接受auto-HSCT的26例MM患者的临床资料,通过多重PCR联合毛细管电泳片段分析法检测IgH重排来评价微小残留病(MRD),对疾病的转归进行相关统计学分析。结果:全部26例MM患者中,男性18例,女性8例,中位年龄59(41-70)岁,移植后中位随访时间33(7-52)个月。与骨髓IgH重排阴性组(17例)比较,移植前骨髓IgH重排阳性(9例)患者移植后3个月达到CR和sCR疗效的比例更低(1/9 vs 14/17),移植后缓解持续的时间(DOR)更短(10.78±4.35 vs 15.88±5.22个月),两组DOR差异有统计学意义(P<0.05);与外周血干细胞采集物IgH重排阴性组(21例)比较,外周血干细胞采集物IgH重排阳性(5例)患者移植后3个月达到CR和sCR的比例更低(0/5 vs 15/21),移植后缓解持续的时间(DOR)更短(9.60±4.83 vs 15.19±5.11个月),两组DOR差异有统计学意义(P<0.05)。在随访期内,移植前骨髓IgH重排阳性的患者有5例(5/9)死亡,IgH重排阴性患者均存活;外周血干细胞采集物IgH重排阳性患者有4例(4/5)死亡,IgH重排阴性患者有1例死亡(1/21)。无论是骨髓还是外周血干细胞采集物标本,IgH重排阳性患者移植后生存时间较IgH重排阴性患者更短(P<0.05)。Logistic回归分析结果显示,性别、疾病分期、初诊时骨髓涂片浆细胞比例、干细胞动员方案、移植前疗效评价(≥CR和<CR)、CD34+细胞计数对移植前骨髓及干细胞采集物IgH重排均无影响(P>0.05)。结论:通过检测接受auto-HSCT的MM患者IgH重排,可以进一步评价MRD的深度,对疾病的疗效及预后判断有一定的指导意义。
文摘Liquid crystals containing phenylpyrimidine units are the fascination condensed state of soft matter with unique electrical, optical and mechanical properties. In this paper, a novel and efficient route was reported for the synthesis of N-（3-（dimethylamino）-2-（4-ethoxyphenyl）allylidene）-N-methylmethanaminium perchlorate by the WillgerodtKindler reaction, which can be further applied to prepare liquid crystals containing phenylpyrimidine units. The product was confirmed by JHNMR, MS, FT-IR and elemental analysis. The experimental conditions of the Willgerodt-Kindler reaction were also studied and the results show that the yield of p-ethoxyphenyl-acetic acid increased remarkably with a reaction time up to 60 rain, then decreased due to carbonization. On the other hand, the yield was also influenced by microwave power. It increased from 20.6 % to 78.8 % with a rise in the microwave power from 250 W to 450 W, but the product was carbonized at 640 W.
文摘目的探讨伴有MYC基因重排和11q异常的高级别B细胞淋巴瘤(high grade B cell lymphoma with concurrent MYC rearrangement and 11q aberrations,HGBCL-MYC-11q)的临床病理特征、分子遗传学特征、治疗及预后。方法收集3例HGBCL-MYC-11q的临床资料,行HE、免疫组化EnVision法染色、EBER原位杂交和FISH检测,并复习相关文献。结果患者均为男性,年龄分别为10、61和74岁。Ann Arbor分期均为Ⅳ期。3例均为活检,分别发生于鼻咽部、上咽部和回盲部。3例形态学相似,肿瘤细胞弥漫浸润性生长,细胞中等大或中等偏大,形态较单一,细胞核圆形到稍不规则,染色质细腻,核分裂象易见;1例局灶可见坏死;1例“星空”现象明显。肿瘤细胞均表达CD20、BCL6和MUM1;2例表达CD10,2例表达BCL2;Ki67增殖指数高(例1、例3近100%,例2约70%);不表达CD3、CD30和TDT;EBER原位杂交检测均为阴性。FISH检测3例均见C-MYC基因重排及11q异常,其中1例仅见11q23.3扩增,1例仅见11q24.3缺失。随访时间1~18个月,1例死亡,2例带病生存。结论HGBCL-MYC-11q少见,形态学类似Burkitt淋巴瘤/高级别B细胞淋巴瘤,但同时伴有MYC基因重排和11q异常,应加强对该疾病的认识,提高对这类疾病的精准诊断及鉴别诊断。
