Histologic evidence of repetitive blunt force abdominal trauma in four pediatric fatalities

In cases of acute fatal child abuse, certain injuries, including cutaneous blunt force trauma, skull fractures, subdural hematomas, intra-abdominal hemorrhage, and retinal hemorrhages are common and well described in the pediatric and forensic literature. These gross findings at autopsy, when taken into consideration with scene investigation and interviews with caregivers, may indicate both a clear manner and cause of death. In such cases, the discovery of additional pathologic changes attributable to older abusive injuries helps support a conclusion of death due to inflicted trauma. We discuss four cases of fatal child abuse in which acute blunt force abdominal trauma was the cause of death. In each of these cases, careful examination with proper sectioning and microscopy of select abdominal tissues revealed that the acute tissue trauma was superimposed on a background of older, healing injury. This older trauma was characterized by classic histologic elements of tissue repair, including fibroblast proliferation, early scar formation, increased vascularity, and hemosiderin-laden macrophages. Iron and trichrome stains were used to confirm the presence of hemosiderin and fibrosis in all four cases, but the recognition of fibroblast proliferation and a reactive vascular pattern was best seen on routine hematoxylin and eosin stains. The gross and microscopic autopsy findings, along with available investigative information, established the diagnosis of chronic physical abuse.     

对新《刑法》第18条的理解与运用

本文就我国新刑法第18条中精神病的涵义,精神病患者刑事责任能力评定,精神病的医学鉴定以及对精神病人的监护治疗问题谈个人看法。供执法者和鉴定工作者在处理有关精神疾病案件时参考。     

传染性腔上囊炎疫苗免疫鸡TLR7基因表达的动态变化

给11日龄雏鸡分别口服接种鸡传染性腔上囊炎(IBD)弱毒疫苗(法贝灵,IBD-Blen)1和3头份后,于不同时间采集脾和腔上囊组织,分离纯化淋巴细胞,常规方法抽提总RNA,以鸡β-actin基因为内参,采用半定量RT-PCR法检测两种组织中鸡Toll样受体7(ChTLR7)基因的表达动态。结果显示,接种IBD弱毒疫苗前,试验鸡脾和腔上囊组织中均有ChTLR7的微量表达,疫苗接种后第7 h,脾中ChTLR7 mRNA的表达开始显著上调,至接种后第12 h达峰值,此后迅速下降,至第130 h时降至疫苗接种前的水平;而腔上囊组织中ChTLR7 mRNA的表达自接种后第12 h开始增加,第24 h时达峰值,随后迅速下降,约72 h后恢复至疫苗接种前水平。表明ChTLR7可能参与了IBDV感染早期的天然免疫反应过程。     

A measure of skewness in offense distributions

It has become a criminological fact of life that a small group of offenders is responsible for a far greater share of offending than its size would suggest. For example, it is well known that in the 1945 Philadelphia birth cohort, 6% of the cohort members committed 52% of the offenses. We argue, however, that the conventional percentaging approach to measuring skewness in offense distributions is inadequate. We propose and apply an alternative approach to measuring offense skewness which utilizes the offense distribution to its fullest and can easily and meaningfully be used for comparisons across or within study populations.     

猪水泡病病毒非结构蛋白编码区的克隆与序列分析

以猪水泡病病毒 (Swinevesiculardiseasevirus ,SVDV)HK’70为材料 ,用特异性引物扩增出非结构蛋白编码区的 4个重叠目的片段 ,连接于pMD 18 T载体 ,转化JM 10 9感受态细胞。经对重组质粒双酶切、PCR鉴定、序列分析表明 ,HK’70非结构蛋白编码区核苷酸长 4 0 0 2nt ,氨基酸长 1334aa ;与J1’73、H/ 3’76、SVDV(Seechrn等测株 )、NET/ 1/ 92的核苷酸同源性分别为 98.6 %、98.3%、98.3%、91.2 % ,推导氨基酸序列的同源性分别为 98.9%、99.1%、99.2 %和 97.2 %。     

抗兔出血症病毒单克隆抗体的制备

用1∶10稀释的兔出血症病毒(RHDV)加等量佐剂乳化后接种BALB/C小鼠3次,取免疫小鼠脾细胞与SP2/0细胞融合。通过用间接ELISA试验筛选、克隆出分泌抗RHDV单克隆抗体的杂交瘤细胞林E_3E_6。     

新城疫病毒F基因与传染性喉气管炎病毒gB基因重组鸡痘病毒免疫保护产生时间的测定

为了检测表达鸡传染性喉气管炎病毒糖蛋白gB基因和新城疫病毒F基因的重组鸡痘病毒(rFPV gB F)的免疫产生期,将60只30日龄SPF鸡随机分为6组,以5d为间隔在试验开始第0、5、10、15、20d时选取10只进行免疫,经翅内侧皮下注射接种1000PFUrFPV gB F,另外的10只作为对照。在第1组免疫后的第25d,将不同日龄免疫组和对照组试验鸡再随机分为2组,分别用传染性喉气管炎病毒WG株和新城疫病毒F48E9株强毒攻击。结果表明,在rFPV gB F免疫接种后第10d时,可以诱发抗gB的抗体,保护免疫鸡抵抗传染性喉气管炎病毒WG株强毒和新城疫强毒的攻击。由此确定,rFPV gB F免疫产生的时间是接种后第10d。     

口蹄疫病毒3B基因的高效表达及其表达产物的反应活性

通过PCR技术获得口蹄疫病毒非结构蛋白3B基因,将其克隆至质粒pET-32a( )和高效可溶性表达质粒pEM中,经PCR筛选,获得阳性重组子pET-3B和pEM-3B,将它们转化大肠杆菌BL21中进行诱导表达,SDS-PAGE及Western-blot检测结果证明,表达的3B融合蛋白能与FMDV感染动物血清发生特异性反应。蛋白可溶性分析表明,EM-3B融合蛋白绝大部分以可溶形式表达。以此可溶性融合蛋白EM-3B为抗原建立了可区分FMD免疫动物和感染动物的EM-3B-DIVA-ELISA方法,经检测,其特异性为95.0%,敏感性为97.5%,与2个国产试剂盒的符合率分别为96.25%和98.75%。     

保心汤对气虚血瘀型冠心病心绞痛患者生活质量的影响

目的：观察保心汤对气虚血瘀型冠心病心绞痛患的临床疗效。方法：采用随机对照方法，将62例患随机分为治疗组和对照组，治疗8周，观察患生活质量的变化及保心汤对心绞痛的疗效。结果：两组心绞痛、心电图疗效比较，差异无显性(P＞0．05)，在改善临床症状和生活质量方面，治疗组明显优于对照组(P＜0．05)。结论：保心汤能有效改善心肌缺血和临床症状，并能提高患的生活质量。     

应用新城疫病毒强弱毒株RT-PCR鉴别诊断技术检测多种禽类副黏病毒

应用已建立的新城疫病毒 (NDV)强、弱毒株RT PCR快速鉴别诊断技术 ,对来自广西各地疑为禽副黏病毒血清 1型 (APMV 1)感染的 14 4份不同禽类的病料进行了检测 ,并用常规方法对RT PCR检测为阳性的部分病料进行了病毒的分离和鉴定。结果 ,从鸡、鸽、鹅、鸭、鹌鹑、珍珠鸡、孔雀、鸵鸟和画眉鸟 9种禽的病料样品中检测到APMV 1,阳性检出率为 6 4.5 8% (93/ 14 4 ) ;从 7种禽病料中分离到 2 9株APMV 1地方野毒株。部分分离株用NDV强、弱毒株快速鉴别技术鉴定属中、强毒株。