目的探讨原发性乳腺弥漫大B细胞淋巴瘤(primary breast diffuse large B-cell lymphoma,PBDLBCL)的临床特点、免疫表型及预后。方法回顾性分析2006年1月~2016年12月49例PBDLBCL的临床病理资料及免疫组化En Vision法染色结果。结果 49例...目的探讨原发性乳腺弥漫大B细胞淋巴瘤(primary breast diffuse large B-cell lymphoma,PBDLBCL)的临床特点、免疫表型及预后。方法回顾性分析2006年1月~2016年12月49例PBDLBCL的临床病理资料及免疫组化En Vision法染色结果。结果 49例患者女性47例,男性2例,年龄24~79岁,中位年龄48岁;镜下见肿瘤细胞中等大小或偏大,弥漫一致浸润分布于乳腺小叶间、导管周围、间质及脂肪组织内,部分呈单行条索状排列。免疫表型:37例为非生发中心型,12例为生发中心型;Ki-67增殖指数均大于40%。Ann Arbor分期:ⅠEA期16例,ⅡEA期28例,ⅣE期5例;IPI评分:30例0~1分,10例2分,9例3分。随访5~146个月,3年患者总生存期为51.2%,5年为36.7%,单因素分析结果显示:临床分期、LDH水平、IPI评分、BCL-2蛋白表达、BCL-6蛋白表达的患者3、5年生存期,差异有统计学意义;Cox回归多因素分析显示IPI危险分级增加是PBDLBCL独立的不良预后因素。结论 PBDLBCL诊断主要依靠病理活检及免疫表型,免疫表型以非生发中心为主,治疗以手术、放、化疗等综合治疗方案为宜。预后需多因素综合评价,IPI危险分级增加是PBDLBCL独立的不良预后因素。展开更多
目的探讨原发性中枢神经系统淋巴瘤(primary central nervous system lymphomas,PCNSL)的临床特征、病理类型及构成比率,分析PCNSL的EBV感染率、c-MYC、BCL-2及BCL-6基因异常及免疫球蛋白基因重排情况。方法回顾性分析167例PCNSL的临床...目的探讨原发性中枢神经系统淋巴瘤(primary central nervous system lymphomas,PCNSL)的临床特征、病理类型及构成比率,分析PCNSL的EBV感染率、c-MYC、BCL-2及BCL-6基因异常及免疫球蛋白基因重排情况。方法回顾性分析167例PCNSL的临床病理资料,总结其临床特征、病理类型及构成比率;原位杂交技术检测PCNSL中EBV编码的小RNA(EBER);荧光原位杂交(fluorescence in situ hybridization,FISH)技术检测c-MYC、BCL-2、BCL-6基因扩增及断裂重排情况;免疫球蛋白基因重排检测Ig H和Ig K。结果 PCNSL占所有淋巴瘤的0. 95%;大多为单一病灶,约占60%,且多位于浅部脑组织(66. 93%)及小脑幕上(87. 40%),最常累及额叶和颞叶,51～60岁为发病高峰期。PCNSL中霍奇金淋巴瘤(Hodgkin’s lymphoma,HL)仅1例;非霍奇金淋巴瘤(non-Hodgkin’s lymphoma,NHL) 166例:B细胞淋巴瘤占158例,其中弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)最常见; T/NK细胞淋巴瘤8例,其中以ALK阳性间变大细胞淋巴瘤多见。13例原发性中枢神经系统弥漫大B细胞淋巴瘤(primary central nervous system-diffuse large B-cell lymphoma,PCNS-DLBCL) EBER均阴性; 11例PCNS-DLBCL中1例c-MYC基因拷贝数增加,未见断裂重排; 1例BCL-2基因拷贝数增加,未见断裂重排; 2例BCL-6基因拷贝数增加,1例断裂重排;免疫球蛋白Ig H和Ig K呈克隆性重排。结论 PCNSL病理类型多样,HL和NHL均可发生,以PCNSDLBCL最多见,T细胞来源的淋巴瘤以ALK阳性间变大细胞淋巴瘤多见,51～60岁为发病高峰期。展开更多
Cholate-CoA ligase （,EEL） and bile acid-CoA： amino acid N-acyltransferase （BAAT） sequentially mediate bile-acid amidation. Defects can cause intrahepatic cholestasis. Distinction has required gene sequencing. We ...Cholate-CoA ligase （,EEL） and bile acid-CoA： amino acid N-acyltransferase （BAAT） sequentially mediate bile-acid amidation. Defects can cause intrahepatic cholestasis. Distinction has required gene sequencing. We assessed potential clinical utility of immunostaining of liver for CCL and BAAT. Using commercially available antibodies against BAAT and CCL, we immunostained liver from an infant with jaundice, deficiency of amidated bile acids, and transcription-terminating mutation in BAAT. CCL was normally expressed. BAAT expression was not de- tected. Immunostaining may facilitate diagnosis in bile- acid amidation defects.展开更多
Objective： To investigate the expres- sion of Caspase-3 and Hsp70 in rabbits after severe trau- matic brain injury （TBI） and to explore the feasibility of its application in estimation of injury time in forensic me...Objective： To investigate the expres- sion of Caspase-3 and Hsp70 in rabbits after severe trau- matic brain injury （TBI） and to explore the feasibility of its application in estimation of injury time in forensic medicine. Methods： Arabbit model of heavy TBI was developed by high velocity impact on the parietal bone with an iron stick. Totally 8 healthy adult New Zealand white rabbits were randomly divided into control group （n=2） and injury group （n=6）. Four hours after injury, tissue specimens from the parietal lobe, temporal lobe, occipital lobe, cerebellum and brainstem were harvested to detect the expression of Hsp70 and Caspase-3 by immunohistochemistry. Besides, the gray values of cells positive for HspT0 and Caspase-3 were analyzed with an image analyzer. Results： Immunohistochemistry staining demonstrated a low level of Caspase-3 and Hsp70 expression in normal control group. While in injury group, both the Caspase-3 and Hsp70 expression was significantly elevated （P〈0.05）. Positive cells gathered around the lesion focus. Occipital lobe and cerebellum had fewer positive cells while temporal and brainstem had the fewest. Conclusion： The expression of Caspase-3 and HspT0 at an early stage following severe TBI is characteristic and can be applied to estimate the time of injury.展开更多
文摘目的探讨原发性乳腺弥漫大B细胞淋巴瘤(primary breast diffuse large B-cell lymphoma,PBDLBCL)的临床特点、免疫表型及预后。方法回顾性分析2006年1月~2016年12月49例PBDLBCL的临床病理资料及免疫组化En Vision法染色结果。结果 49例患者女性47例,男性2例,年龄24~79岁,中位年龄48岁;镜下见肿瘤细胞中等大小或偏大,弥漫一致浸润分布于乳腺小叶间、导管周围、间质及脂肪组织内,部分呈单行条索状排列。免疫表型:37例为非生发中心型,12例为生发中心型;Ki-67增殖指数均大于40%。Ann Arbor分期:ⅠEA期16例,ⅡEA期28例,ⅣE期5例;IPI评分:30例0~1分,10例2分,9例3分。随访5~146个月,3年患者总生存期为51.2%,5年为36.7%,单因素分析结果显示:临床分期、LDH水平、IPI评分、BCL-2蛋白表达、BCL-6蛋白表达的患者3、5年生存期,差异有统计学意义;Cox回归多因素分析显示IPI危险分级增加是PBDLBCL独立的不良预后因素。结论 PBDLBCL诊断主要依靠病理活检及免疫表型,免疫表型以非生发中心为主,治疗以手术、放、化疗等综合治疗方案为宜。预后需多因素综合评价,IPI危险分级增加是PBDLBCL独立的不良预后因素。
基金Supported by Great Ormond Street Hospital Children’s Charity, to Clayton PTNational Institutes of HealthGrant R01 DK58214, to Bull LN
文摘Cholate-CoA ligase （,EEL） and bile acid-CoA： amino acid N-acyltransferase （BAAT） sequentially mediate bile-acid amidation. Defects can cause intrahepatic cholestasis. Distinction has required gene sequencing. We assessed potential clinical utility of immunostaining of liver for CCL and BAAT. Using commercially available antibodies against BAAT and CCL, we immunostained liver from an infant with jaundice, deficiency of amidated bile acids, and transcription-terminating mutation in BAAT. CCL was normally expressed. BAAT expression was not de- tected. Immunostaining may facilitate diagnosis in bile- acid amidation defects.
基金The paper was supported by the National Natural Science Foundation of China，the Natural Science Foundation of Chongqing of China，the Key Projects Foundation of the Ministry of Public Security
文摘Objective： To investigate the expres- sion of Caspase-3 and Hsp70 in rabbits after severe trau- matic brain injury （TBI） and to explore the feasibility of its application in estimation of injury time in forensic medicine. Methods： Arabbit model of heavy TBI was developed by high velocity impact on the parietal bone with an iron stick. Totally 8 healthy adult New Zealand white rabbits were randomly divided into control group （n=2） and injury group （n=6）. Four hours after injury, tissue specimens from the parietal lobe, temporal lobe, occipital lobe, cerebellum and brainstem were harvested to detect the expression of Hsp70 and Caspase-3 by immunohistochemistry. Besides, the gray values of cells positive for HspT0 and Caspase-3 were analyzed with an image analyzer. Results： Immunohistochemistry staining demonstrated a low level of Caspase-3 and Hsp70 expression in normal control group. While in injury group, both the Caspase-3 and Hsp70 expression was significantly elevated （P〈0.05）. Positive cells gathered around the lesion focus. Occipital lobe and cerebellum had fewer positive cells while temporal and brainstem had the fewest. Conclusion： The expression of Caspase-3 and HspT0 at an early stage following severe TBI is characteristic and can be applied to estimate the time of injury.
