A study on contents of trace elemants Sr、Ni、Se~(4＋)in different parts of Jilinpanaxginseng

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斑点免疫渗滤法检测丙肝IgG抗体试剂盒的研制

用基因工程重组的丙肝抗原包被于硝酸纤维素膜，建立了检测丙肝ＩｇＧ抗体的斑点免疫渗滤法。与ＥＬＩＳＡ试剂盒进行双盲式同步测定，二法检验结果差异无显著性。渗滤法简便快速，适用于各级医院，有很强的推广价值。     

Animal models in the investigation of anorexia

Anorexia nervosa (AN) is an eating disorder of unknown origin that most commonly occurs in women and usually has its onset in adolescence. Patients with AN invariably have a disturbed body image and an intense fear of weight gain. There is currently no definitive treatment for this disease, which carries a 20% mortality over 20 years. Development of an appropriate animal model of AN has been difficult, as the etiology of this eating disorder likely involves a complex interaction between genetic, environmental, social, and cultural factors. In this review, we focus on several possible rodent models of AN. In our laboratory, we have developed and studied three different mouse models of AN based on clinical profiles of the disease; separation stress, activity, and diet restriction (DR). In addition, we discuss the spontaneous mouse mutation anx/anx and several mouse gene knockout models, which have resulted in an anorexic phenotype. We highlight what has been learned from each of these models and possibilities for future models. It is hoped that a combination of the study of such models, together with genetic and clinical studies in patients, will lead to more rational and successful prevention/treatment of this tragic, and often fatal, disease.     

便携式脑电图机的设计

本设计实现了USB接口的，模拟放大、采样一体化的便携式脑电图机。采用＆N2131进行A／D转换控制和PC的USB通讯等工作。通过数字光耦完成电路的隔离。为减少光耦的数量采用了软件模拟的SPI接口通讯。设计的脑电图机可以在恶劣的电磁环境下完成常规脑电图的检查。     

Central auditory maturation and behavioral outcome in children with auditory neuropathy spectrum disorder who use cochlear implants

Abstract

Objective: We examined cortical auditory development and behavioral outcomes in children with ANSD fitted with cochlear implants (CI). Design: Cortical maturation, measured by P1 cortical auditory evoked potential (CAEP) latency, was regressed against scores on the infant toddler meaningful auditory integration scale (IT-MAIS). Implantation age was also considered in relation to CAEP findings. Study sample: Cross-sectional and longitudinal samples of 24 and 11 children, respectively, with ANSD fitted with CIs. Results: P1 CAEP responses were present in all children after implantation, though previous findings suggest that only 50–75% of ANSD children with hearing aids show CAEP responses. P1 CAEP latency was significantly correlated with participants’ IT-MAIS scores. Furthermore, more children implanted before age two years showed normal P1 latencies, while those implanted later mainly showed delayed latencies. Longitudinal analysis revealed that most children showed normal or improved cortical maturation after implantation. Conclusion: Cochlear implantation resulted in measureable cortical auditory development for all children with ANSD. Children fitted with CIs under age two years were more likely to show age-appropriate CAEP responses within six months after implantation, suggesting a possible sensitive period for cortical auditory development in ANSD. That CAEP responses were correlated with behavioral outcome highlights their clinical decision-making utility.     

Comparison of the circulatory effects of continuous renal replacement therapy using AN69ST and polysulfone membranes in septic shock patients: A retrospective observational study

The acrylonitrile‐co‐methallyl sulfonate surface‐treated (AN69ST) membrane is expected to improve hemodynamics in patients with sepsis through cytokine adsorption. However, the clinical literature on AN69ST membranes is very limited. We aimed to compare the circulatory effects of continuous renal replacement therapy (CRRT) between patients using the AN69ST membrane and polysulfone (PS) membrane (a nonadsorbing membrane). This retrospective observational study enrolled 38 patients with septic shock, as defined by Sepsis‐3 criteria, who required CRRT from April 2013 to March 2018. Those who died within 24 hours after CRRT initiation and received polymyxin B‐immobilized fiber column direct hemoperfusion, extracorporeal membrane oxygenation, and CRRT using other membranes were excluded. The primary outcome was the vasopressor dependency index during the 12 hours after CRRT initiation, which was calculated as (inotropic score)/(mean arterial pressure). Of 38 patients analyzed, 16 underwent CRRT with an AN69ST membrane and 22 with a PS membrane. The median patient age was 68 years, and the median Acute Physiology and Chronic Health Evaluation (APACHE) II score at intensive care unit admission was 29.5. The vasopressor dependency index decreased significantly during the 12 hours after CRRT initiation in both groups (AN69ST: from 0.50 ± 0.43 to 0.33 ± 0.27 [P < .05], PS: from 0.34 ± 0.30 to 0.21 ± 0.22 [P < .05]). The time course of the vasopressor dependency index during the 12 hours did not differ between the two groups (P = .11). The vasopressor dependency index decreased significantly after CRRT initiation in both groups. The time course of the vasopressor dependency index did not differ between the groups.     

血清癌胚抗原升高者的PET/CT分析

【目的】用18F-FDG PET或PET/CT显像研究血清癌胚抗原(CEA)升高者的临床应用价值。【方法】81例患者中,无既往恶性肿瘤病史者42例,有恶性肿瘤病史者39例。全身PET或PET/CT显像者78例,局部显像者3例。所有患者临床随访时间皆大于6个月。【结果】81例中,随访结果证实有恶性肿瘤者70例,无恶性肿瘤者11例。PET对恶性肿瘤的检出灵敏度为91.5%,特异性为85.7%。假阳性1例,为结肠腺瘤;假阴性5例,见于肺泡癌(3例)、卵巢浆液乳头状囊腺癌(1例)和胃印戒细胞癌(1例)。真阳性患者中,肺癌 结直肠癌占72.3%。恶性病灶的多少及严重程度与CEA水平的高低无明显关系。【结论】PET在探查和诊断CEA升高者体内恶性肿瘤方面是一种很有用的显像技术。PET显像阴性者须结合其他影像技术并判断定期随访。     

Rates of Help-Seeking in US Adults With Lifetime DSM-5 Eating Disorders: Prevalence Across Diagnoses and Differences by Sex and Ethnicity/Race

ObjectiveTo investigate, in a nationally representative sample of US adults, the prevalence of help-seeking in individuals with Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) eating disorders (EDs) and to examine sex and ethnic/racial differences.Patients and MethodsThe 2012-2013 National Epidemiologic Survey on Alcohol and Related Conditions-III (N=36,309) included respondents who met the criteria for specific lifetime DSM-5 EDs and answered questions regarding help-seeking for their ED symptoms (anorexia nervosa [AN]: n=275; bulimia nervosa [BN]: n=91; and binge-eating disorder [BED]: n=256).ResultsThe prevalence (standard error) estimates of ever seeking any help for AN, BN, and BED were 34.5% (2.80%), 62.6% (5.36%), and 49.0% (3.74%), respectively. Adjusting for sociodemographic characteristics, men and ethnic/racial minorities (non-Hispanic blacks and Hispanics) were statistically significantly less likely to ever seek help for BED than were women or non-Hispanic whites, respectively. Hispanics also were significantly less likely to seek help for AN relative to non-Hispanic whites.ConclusionThis was the first study in a nationally representative sample of US adults to examine rates of help-seeking, including by sex and ethnic/racial differences, across DSM-5–defined EDs. These findings emphasize the need to develop strategies to encourage help-seeking among individuals with EDs, particularly among men and ethnic/racial minorities.