Gaslighting in alleged assault ascertained as Munchausen syndrome transcending to malingering in highly counterintuitive self inflicted acid burns

A factitious disorder leading to the self-infliction of highly counter-intuitive burns was diagnosed in a middle-aged female. The injuries were otherwise alleged to have been sustained by assault inflicted upon her by an unknown person. The case was diagnosed by medico-legal interpretation of injuries, in spite of a highly deceptive and concocted history by the patient and her husband. The entity was unique in being associated with magnificent primary, secondary and tertiary gains. The exploitation of the morbid sequel to malinger by the patient, and the involvement of the husband for the prolongation of the illness of his wife for financial gains as gaslighting was highly unusual. The self-infliction of injuries over hands is seen in factitious disorder. However, a combination of a guarded self-immersion of the hands and feet in a corrosive by an illiterate female, followed by malingering to earn livelihood is unprecedented in factitious disorders. The delayed presentation which required amputation of all the limbs to save the life of the patient is a glaring highlight of this case.     

The role of urease in the acid stress response and fimbriae expression in Klebsiella pneumoniae CG43

Background/purposeTwo urease operons were identified in Klebsiella pneumoniae CG43, ure-1 and ure-2. This study investigates whether a differential regulation of the expression of ure-1 and ure-2 exists and how urease activity influences the acid stress response and expression of type 1 and type 3 fimbriae.MethodsThe ureA1 and ureA2 gene specific deletion mutants were constructed. Promoter activity was assessed using a LacZ reporter system. The sensitivity to acid stress was determined by assessing the survival after pH 2.5 treatment. The influence on type 1 and type 3 fimbriae expression was assessed using western blotting and mannose-sensitive yeast agglutination and biofilm formation assay, respectively.ResultsBacterial growth analysis in mM9-U or modified Stuart broth revealed that ure-1 was the principal urease system, and ure-2 had a negative effect on ure-1 activity. Deletion of the fur or nac gene had no apparent effect on the activity of P_ure1, P_ure2-1, and P_ure2-2. The P_ure2-2 activity was enhanced by deletion of the hns gene. ureA1 deletion increased acid stress sensitivity, whereas the deleting effect of ureA2 was notable without hns. Deletion of ureA1 or ureA2 significantly induced the expression of type 1 fimbriae but decreased MrkA production and biofilm formation.Conclusionure-1 is the primary expression system in K. pneumoniae CG43, while ure-2 is active in the absence of hns. Impairment of urease activity increases the sensitivity to acid stress, and the accumulation of urea induces the expression of type 1 fimbriae but represses type 3 fimbriae expression.     

难治性胃食管反流病临证研究

难治性胃食管反流病是临床疑难病,症状反复,缠绵难愈,治疗棘手。中医药治疗“反酸”“吞酸”证历久源远,充分挖掘古籍,深研病机,提炼治法,发挥中医药特色,对治疗本病意义深远。     

一种诊断脑室-腹腔分流装置梗阻的方法

目的 介绍一种诊断脑室腹腔分流装置梗阻的方法。方法 选择2014年8月至2018年3月收治的腹腔分流术后病人32例，其中分流装置梗阻16例（梗阻组），分流装置通畅16例（对照组）。病人先平躺1 h后改坐位，将0.1 ml 5%葡萄糖溶液注射入贮液囊，20 min后抽0.1 ml，用生理盐水将其稀释1倍后应用血糖仪检测葡萄糖浓度。结果 对照组贮液囊内葡萄糖浓度[（6.6±1.6）mmol/L]较梗阻组[（31.9±2.8）mmol/L]明显下降（P<0.05）。梗阻组病人入院后均行脑室-腹腔分流管调整术，手术证实分流装置梗阻，术后病人颅内压增高症状消失，术后3 d复查头颅CT结果显示脑室体积较术前减小11例，无明显变化5例。结论 此方法可检测分流管内脑脊液的流动情况，为诊断分流装置梗阻提供一种新的方法。     

脑卒中个案管理师准入标准和工作职责方案的构建

目的 构建脑卒中个案管理师准入标准和工作职责,为制订符合中国国情的脑卒中个案管理师人才培养方案和工作标准提供参考依据。方法 基于文献研究、脑卒中患者管理现状调查、专家会议讨论和预咨询,构建准入标准和工作职责初稿;采用德尔菲专家咨询法,对全国8个省市的20名专家进行问卷咨询。 结果 2轮专家咨询的问卷有效回收率分别是95.2%和100.0%。第2轮咨询中,专家权威系数为0.910,准入标准和工作职责的一、二、三级指标专家意见的肯德尔和谐系数分别为0.193、0.155、0.141（P<0.05）和0.445、0.156、0.134（P<0.05）。最终形成的脑卒中个案管理师准入标准包括一级指标3项（基础条件、专业能力、综合能力）,二级指标7项,三级指标17项。工作职责包括一级指标4项（评估、计划、实施、评价）,二级指标17项,三级指标79项。 结论 经专家咨询确定的脑卒中个案管理师准入标准和工作职责方案具有较好的科学性、实用性、可行性和创新性,能为脑卒中个案管理护理实践提供理论依据。     

补肾活血法改善乳腺癌认知功能下降的临床观察

目的：探讨补肾活血方药治疗化疗后认知功能下降乳腺癌患者的临床疗效。方法：选取2015年11月至2017年11月首都医科大学附属北京中医医院收治的化疗后不同程度认知障碍的乳腺癌患者72例作为研究对象，按照随机数字表法随机分为对照组和观察组，每组36例。对照组给予对应的安慰剂，观察组给予补肾活血为主的方药，均为2次/d，共治疗6周。分别在治疗前后观察2组患者的认知功能（蒙特利尔量表、FACT量表）、生命质量、中医症候评分等。结果：在认知功能评价中，药物观察组患者蒙特利尔量表评分治疗后较治疗前显著提高（P<0.05），与对照组比较也有明显提高（P<0.05）。中药观察组患者的FACT-cog量表积分治疗后较治疗前有显著提高（P<0.05），且与对照组比较有显著提高（P<0.05）。观察组治疗后中医证候评分较治疗前及对照组治疗后均明显提高（P<0.05），观察组与对照组治疗前后的生命质量评分差异无统计学意义(P>0.05)。结论：补肾活血中药一定程度上可以有效改善乳腺癌患者化疗后导致的认知功能下降，但对生命质量的改善并不明显。     

Reference measurements of mercury species in seafood using isotope dilution inductively coupled plasma mass spectrometry

Species-specific isotope dilution inductively coupled plasma mass spectrometry (SS ID ICP-MS) and high-performance liquid chromatography (HPLC) were used to obtain accurate and SI traceable results for methyl mercury in seafood samples such as clam, oyster and fish homogenate. The mass fractions of (62.3 ± 2.3) μg kg⁻¹, (5.44 ± 0.36) μg kg⁻¹ and (531 ± 19) μg kg⁻¹ were obtained for MeHg (as Hg) in IAEA-461, IAEA-470 and IAEA-476, respectively. Direct isotope dilution mass spectrometry was performed for total mercury content then the content of inorganic mercury in selected samples was obtained by calculation. It was found that the content of inorganic Hg in IAEA-461, IAEA-470, and IAEA-476 was as: 328 μg kg⁻¹, 16 μg kg⁻¹, and 62 μg kg⁻¹, respectively. Mathematical modelling of analytical procedure and evaluation of all parameters influencing final results were adequate for validation of measurement procedure, establishing traceability and estimating expanded uncertainty. Developed procedures were successfully applied in the characterization process of fish homogenate candidate reference material and in the calculation of assigned values in the frame of IAEA-476 inter-laboratory comparison study. Compatibility between obtained results and those derived from the certification campaign, organized by International Atomic Energy Agency on the same sample matrix (<2.6 % difference) further validated performed ID ICP-MS protocols.