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1Report of an international workshop to standardize baseline evaluation and response criteria for primary CNS lymphoma.显示文摘Abrey LE Batchelor TT Ferreri A J Gospodarowicz M Pulczynski EJ Zucca E Smith JR Korfel A Soussain C DeAngelis LM Neuwelt EA O′Neill BP Thiel E Shenkier T Graus F van den Bent M Seymour JF Poortmans P Armitage JO Cavalli F 2005中国神经肿瘤杂志2005,3,3:53
2AGNP精神科治疗药物监测共识指南:2011显示文摘治疗药物监测(Therapeutic drug monitoring,TDM),如通过定量测定血清或血浆药物浓度指导用药剂量优化,已经成为对患者进行精神药物治疗的很有价值的工具。在患者用药依从性难以判断、药物耐受性不佳、治疗剂量下无效以及可能存在药代动力学药物-药物相互作用等情况下,测定药物浓度是很有用的。在精神科,有可能明显获益于TDM的主要患者群体包括儿童、孕妇、老年患者、智力障碍患者、涉及司法的患者、已知或怀疑携带药代动力学相关基因变异的患者,以及合并躯体疾病影响药代动力学的患者。然而,只有将TDM充分整合到临床治疗过程中去,才能发挥其优化药物治疗的潜在优势。为了促进TDM的合理应用,神经精神药理学与药物精神病学协会(Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie,AGNP)的TDM专家组在2004年发表了精神药物治疗药物监测指南。之后,随着知识不断更新,又有许多可能需要进行TDM的新药上市。因此,本次更新将神经精神药物的种类扩展到了128种,并将其TDM必要性划分为从'强烈推荐'到'可能有用'的四个等级。经过大量细致且全面的文献检索与分门别类的汇总整理,将基于循证医学理念的'治疗参考浓度范围'和'剂量相关参考浓度范围'呈现给大家。本共识指南引入了'实验室警戒浓度'的新概念,即实验室需要马上告知治疗医生的药物浓度上限。本共识指南还给出了诸如药物作为细胞色素P450酶的底物和抑制剂的性质,代谢物与母药浓度比值的常见范围,以及与结果解释相关的内容,还提供了何时将TDM与遗传药理学检测相结合的建议。遵循本指南,有助于改善许多患者精神药物治疗的效果,特别是那些存在药代动力学异常的患者。TDM是一门交叉学科,有时针对看起来不一致的数据,需要多学科坦诚地讨论,只有这样,患者才能从这种合作中获益。Hiemke C Baumann P Bergemann N Conca A Dietmaier O Egberts K Fric M Gerlach M Greiner C Gründer G Haen E Havemann-Reinecke U Jaquenoud Sirot E Kirchherr H Laux G Lutz UC Messer T Müller MJ Pfuhlmann B Rambeck B Riederer P Schoppek B Stingl J Uhr M Ulrich S Waschgler R Zernig G 李文标(译) 果伟(译) 阮灿军(译) 贺静(译) 汤宜朗(审校) 王传跃(审校) 2016实用药物与临床2016,19,10:37
3OPTICAL PROPERTIES OF GeO_2 AND Ge NANOCRYSTALS显示文摘he co m pound m aterial of n m size particles Ge O2 Si O2 w as synthesied through hydrolysis of Si( O C2 H4) and Ge Cl4 . A heat treatm ent w as carried out for the sa m ples at 100 ~1200 ℃in air . Its optical property w as deter mined by U V Vis spectur m . We have found that theabsorption edge of spectru m shifted progressively to longer w avelengths . The quantu m size ef fect of nanocrystals appears because crystals gro w and energy of optical band gap reduces d ueto the influence of te m perature . By the analysis of X ray diffraction w e have observed theprocess in w hich the structure of particles changed fro m disorder into order .Y.H.Zhou 1) ,Y.Y.Feng 2) and H.Y.Lu 2) 1)Department of Physics Nanjing Normal University, Nanjing 210097,China 2)Physics and Ch寁O P T I C A L P R O P E R T I E S O F Ge O2 A N D Ge N A N O C R Y S T A L S Y. H. Zhou1) , Y. Y. Feng2) 1999Acta Metallurgica Sinica(English Letters)1999,12,5:22
4短期针刺足三里对脂多糖诱导的大鼠急性肺损伤的预防作用(英文)显示文摘目的:研究短期手法针刺足三里治疗对脂多糖诱导的实验性大鼠急性肺损伤的预防作用。方法:根据是否进行脂多糖刺激及采用的针刺方法的不同,将32只 Wistar 大鼠随机分为4组,即正常对照组、模型组、假针刺组和针刺组,每组8只。假针刺组和针刺组大鼠行手法针刺治疗,连续治疗4 d,每次 5 min。第4天针刺后采用脂多糖刺激诱导大鼠急性肺损伤。第5天,收集外周血、支气管肺泡灌洗液和骨髓等进行白细胞计数。结果:血细胞计数和支气管肺泡灌洗液细胞计数提示,针刺可减轻急性肺损伤大鼠的炎性反应,假针刺也有轻微的效果。正常对照组和模型组大鼠无明显的炎性反应。与正常对照组比较,模型组肺泡灌洗液中细胞计数增加;与假针刺组比较,针刺组肺泡灌选液中细胞计数减少,但差异没有统计学意义。结论:预防性手法针刺足三里可减轻脂多糖诱导的大鼠急性肺损伤,但其相关免疫机制仍待进一步的研究。Arthur de Sá FERREIRA Januário Gomes Mourāo e LIMA Tatiana Pereira Teixeira FERREIRA Camila Madeira Tavares LOPES Rubens MEYER 2009中西医结合学报2009,7,10:21
5Therapeutic temperature modulation is associated with pulmonary complications in patients with severe traumatic brain injury显示文摘AIM: To examine complications associated with the use of therapeutic temperature modulation(mild hypothermia and normothermia) in patients with severe traumatic brain injury(TBI). METHODS: One hundred and fourteen charts were reviewed. Inclusion criteria were: severe TBI with Glasgow Coma Scale(GCS) < 9, intensive care unit(ICU) stay > 24 h and non-penetrating TBI. Patients were divided into two cohorts: the treatment group received therapeutic temperature modulation(TTM) with continuous surface cooling and indwelling bladder temperature probes. The control group received standard treatment with intermittent acetaminophen for fever. Information regarding complications during the time in the ICU was collected as follows: Pneumonia was identified using a combination of clinical and laboratory data. Pulmonary embolism, pneumothorax and deep venous thrombosis were identified based onimaging results. Cardiac arrhythmias and renal failure were extracted from the clinical documentation. acute respiratory distress syndrome and acute lung injury were determined based on chest imaging and arterial blood gas results. A logistic regression was conducted to predict hospital mortality and a multiple regression was used to assess number and type of clinical complications. RESULTS: One hundred and fourteen patients were included in the analysis(mean age = 41.4, SD = 19.1, 93 males), admitted to the Jackson Memorial Hospital Neuroscience ICU and Ryder Trauma Center(mean GCS = 4.67, range 3-9), were identified and included in the analysis. Method of injury included motor vehicle accident(n = 29), motor cycle crash(n = 220), blunt head trauma(n = 212), fall(n = 229), pedestrian hit by car(n = 216), and gunshot wound to the head(n = 27). Ethnicity was primarily Caucasian(n = 260), as well as Hispanic(n = 227) and African American(n = 223); four patients had unknown ethnicity. Patients received either TTM(43) or standard therapy(71). Within the TTM group eight patients were treated with normothermia after TBI and 35 patients were treated with hypothermia. A logistic regression predicting in hospital mortality with age, GCS, and TM demonstrated that GCS(Beta = 0.572, P < 0.01) and age(Beta =-0.029) but not temperature modulation(Beta = 0.797, ns) were significant predictors of in-hospital mortality [χ2(3) = 22.27, P < 0.01] A multiple regression predicting number of complications demonstrated that receiving TTM was the main contributor and was associated with a higher number of pulmonary complications(t =-3.425, P = 0.001). CONCLUSION: Exposure to TTM is associated with an increase in pulmonary complications. These findings support more attention to these complications in studies of TTM in TBI patients.Kristine H O’Phelan Amedeo Merenda Katherine G Denny Kassandra E Zaila Cynthia Gonzalez 2015World Journal of Critical Care Medicine2015,4,4:18
6Intraoperative cell salvage with autologous transfusion in liver transplantation显示文摘Liver transplant(LT) is the primary treatment for patients with end-stage liver disease. About 25000 LTs are performed annually in the world. The potential for intraoperative bleeding is quite variable. However, massive bleeding is common and requires blood transfusion. Allogeneic blood transfusion has an immunosuppressive effect and an impact on recipient survival, in addition to the risk of transmission of viral infections and transfusion errors, among others.Techniques to prevent excessive bleeding or to use autologous blood have been proposed to minimize the negative effects of allogeneic blood transfusion.Intraoperative reinfusion of autologous blood is possible through previous selfdonation or blood collected during the operation. However, LT does not normally allow autologous transfusion by prior self-donation. Hence, using autologous blood collected intraoperatively is the most feasible option. The use of intraoperative blood salvage autotransfusion(IBSA) minimizes the perioperative use of allogeneic blood, preventing negative transfusion effects without negatively impacting other clinical outcomes. The use of IBSA in patients with cancer is still a matter of debate due to the theoretical risk of reinfusion of tumor cells. However, studies have demonstrated the safety of IBSA in several surgical procedures, including LT for hepatocellular carcinoma. Considering the literature available to date, we can state that IBSA should be routinely used in LT, both in patients with cancer and in patients with benign diseases.Marcelo A Pinto Marcio F Chedid Leo Sekine Andre P Schmidt Rodrigo P Capra Carolina Prediger Jo?o E Prediger Tomaz JM Grezzana-Filho Cleber RP Kruel 2019World Journal of Gastrointestinal Surgery2019,11,1:16
7幽门螺杆菌感染处理的当前观念——MaastrichtⅢ共识报告显示文摘名词缩写欧洲幽门螺杆菌研究小组:European Helicobacter Study Group,EHSG胃食管反流病:gastro-esophageal reflux disease。P Malfertheiner F Megraud C O'Morain F Bazzoli E El-Omar D Graham R Hunt T Rokkas N Vakil EJ Kuipers 朱琦 2007胃肠病学2007,12,3:15
8高血压患者脑小血管病变化对认知功能的影响显示文摘高血压是脑小血管病进展与认知功能障碍的主要危险因素之一。该研究旨在探讨高血压患者脑小血管病损伤变化与认知功能减退及轻度认知功能障碍的关系。该研究的数据从ISSYS队列(探讨高血压无症状性脑卒中:一个磁共振成像研究)中获得,其是一项纵向人群研究,纳入基线无痴呆及脑卒中,年龄50~70岁的高血压患者。Jiménez-Balado J Riba-Llena I Abril O Garde E Penalba A Ostos E Maisterra O Montaner J Noviembre M Mundet X Ventura O Pizarro J Delgado P 赵狄 练桂丽 2019中华高血压杂志2019,27,2:15
9Computed tomography-guided percutaneous core needle biopsy in pancreatic tumor diagnosis显示文摘AIM: To evaluate the techniques, results, and complications related to computed tomography(CT)-guided percutaneous core needle biopsies of solid pancreatic lesions.METHODS: CT-guided percutaneous biopsies of solid pancreatic lesions performed at a cancer reference center between January 2012 and September 2013 were retrospectively analyzed. Biopsy material was collected with a 16-20 G Tru-Core needle(10-15 cm; Angiotech, Vancouver, CA) using a coaxial system and automatic biopsy gun. When direct access to the lesion was not possible, indirect(transgastric or transhepatic) access or hydrodissection and/or pneumodissection maneuvers were used. Characteristics of the patients, lesions, procedures, and histologic results were recorded using a standardized form. RESULTS: A total of 103 procedures included in the study were performed on patients with a mean age of 64.8 year(range: 39-94 year). The mean size of the pancreatic lesions was 45.5 mm(range: 15-195 mm). Most(75/103, 72.8%) procedures were performed via direct access, though hydrodissection and/or pneumodissection were used in 22.2%(23/103) of cases and indirect transhepatic or transgastric access was used in 4.8%(5/103) of cases. Histologic analysis was performed on all biopsies, and diagnoses were conclusive in 98.1%(101/103) of cases, confirming3.9%(4/103) of tumors were benign and 94.2%(97/103) were malignant; results were atypical in 1.9%(2/103) of cases, requiring a repeat biopsy to diagnose a neuroendocrine tumor, and surgical resection to confirm a primary adenocarcinoma. Only mild/moderate complications were observed in 9/103 patients(8.7%),and they were more commonly associated with biopsies of lesions located in the head/uncinate process(n =8), than of those located in the body/tail(n = 1) of the pancreas, but this difference was not significant.CONCLUSION: CT-guided biopsy of a pancreatic lesion is a safe procedure with a high success rate, and is an excellent option for minimally invasive diagnosis.Chiang J Tyng Maria Fernanda A Almeida Paula NV Barbosa Almir GV Bitencourt José Augusto AG Berg Macello S Maciel Felipe JF Coimbra Luiz Henrique O Schiavon Maria Dirlei Begnami Marcos D Guimares Charles E Zurstrassen Rubens Chojniak 2015World Journal of Gastroenterology2015,21,12:14
10吲达帕胺缓释片联合氨氯地平治疗伴有微量白蛋白尿的糖尿病合并高血压患者:NESTOR回顾性分析显示文摘高血压联合治疗通常包括一种肾素血管紧张素醛固酮系统(reninangiotensin-aldosteronesystem,RAAS)阻断剂,然而收缩压仍难以控制。非RASS阻断剂如钙拮抗剂和噻嗪样利尿剂联用可能是有效的替代方案。Hanon O Boully C Caillard L Labouree F Cochiello S Chaussade E 练桂丽 2015中华高血压杂志2015,23,12:7
11一种miRNA标记在胶质瘤侵袭性表型的确定与预后评估中的价值(英文)显示文摘Gliomas represent a disparate group of tumours for which there are to date no cure. Thus,there is a recognized need for new diagnostic and therapeutic approaches based on increased understanding of their molecular nature. We performed the comparison of the microRNA( miRNA) profile of 8 WHO grade II gliomas and 24 higher grade tumours( 2 WHO grade III and 22 glioblastomas) by using the Affymetrix Gene Chip miRNA Array v. 1. 0. A relative quantification method( RT-q PCR) with standard curve was used to confirm the 22 miRNA signature resulted by array analysis. The prognostic performances of the confirmed miRNAs were estimated on the Tumor Cancer Genome Atlas( TCGA) datasets. We identified 22 miRNAs distinguishing grade II gliomas from higher grade tumours.RT-q PCR confirmed the differential expression in the two patients' groups for 13 out of the 22 miRNAs. The analysis of the Glioblastoma Multiforme( GBM) and Lower Grade Glioma( LGG) datasets from TCGA demonstrated the association with prognosis for 6 of those miRNAs. Moreover,in the GBM dataset miR-21 and miR-210 were predictors of worse prognosis in both univariable and multivariable Cox regression analyses( HR 1. 19,P = 0. 04,and HR 1. 18,P = 0. 029 respectively). Our results support a direct contribution of miRNAs to glioma cancerogenesis and suggest that miR-21 and miR-210 may play a role in the aggressive clinical behaviour of glioblastomas.Barbano R Palumbo O Pasculli B Galasso M Volinia S D'Angelo V Icolaro N Coco M Dimitri L Graziano P Copetti M Valori VM Maiello E Carella M Fazio VM Parrella P 2014中华神经外科疾病研究杂志2014,13,5:6
12Endoscopic retrograde cholangiography for pediatric choledocholithiasis: Assessing the need for endoscopic intervention显示文摘AIM:To assess pediatric patients for choledocholithiasis.We applied current adult guidelines to identify predictivefactors in children.METHODS:A single-center retrospective analysis was performed at a tertiary children's hospital.We evaluated 44 consecutive pediatric patients who underwent endoscopic retrograde cholangiography(ERCP) for suspected choledocholithiasis.Patients were stratified into those with common bile duct stones(CBDS) at ERCP vs those that did not using the American Society of Gastrointestinal Endoscopy(ASGE) guidelines(Very Strong and Strong criteria) for suspected CBDS.RESULTS:CBDS were identified in 84% at the time of ERCP.Abdominal ultrasound identified CBDS in 36% of patients.Conjugated bilirubin ≥ 0.5 mg/d L was an independent risk factor for CBDS(P = 0.003).The Very Strong(59.5%) and Strong(48.6%) ASGE criteria identified the majority of patients(P = 0.0001).A modified score using conjugated bilirubin had a higher sensitivity(81.2% vs 59.5%) and more likely to identify a stone than the standard criteria,odds ratio of 25.7 compared to 8.8.Alanine aminotransferase and gamma-glutamyl transferase values identified significant differences in a subset of patients with odds ratio of 4.1 and 3.25,respectively.CONCLUSION:Current adult guidelines identified the majority of pediatric patients with CBDS,but specific pediatric guidelines may improve detection,thus decreasing risks and unnecessary procedures.Douglas S Fishman Bruno P Chumpitazi Isaac Raijman Cynthia Man-Wai Tsai E O’Brian Smith Mark V Mazziotti Mark A Gilger 2016World Journal of Gastrointestinal Endoscopy2016,8,11:6
13Endoscopic ultrasound-guided vs endoscopic retrograde cholangiopancreatography biliary drainage for obstructed distal malignant biliary strictures: A systematic review and meta-analysis显示文摘BACKGROUND For palliation of malignant biliary obstruction(MBO), the gold-standard method of biliary drainage is endoscopic retrograde cholangiopancreatography(ERCP)with the placement of metallic stents. Endoscopic ultrasound(EUS)-guided drainage is an alternative that is typically reserved for cases of ERCP failure.Recently, however, there have been robust randomized clinical trials(RCTs)comparing EUS-guided drainage and ERCP as primary approaches to MBO.AIM To compare EUS guidance and ERCP in terms of their effectiveness and safety in palliative biliary drainage for MBO.METHODS This was a systematic review and meta-analysis, in which we searched the MEDLINE, Excerpta Medica, and Cochrane Central Register of Controlled Trials databases. Only RCTs comparing EUS and ERCP for primary drainage of MBO were eligible. All of the studies selected provided data regarding the rates of technical and clinical success, as well as the duration of the procedure, adverse events, and stent patency. We assessed the risk of biases using the Jadad score and the quality of evidence using the Grading of Recommendations Assessment,Development and Evaluation criteria.RESULTS The database searches yielded 5920 records, from which we selected 3 RCTs involving a total of 222 patients(112 submitted to EUS and 110 submitted to ERCP). In the EUS and ERCP groups, the rate of technical success was 91.96%n and 91.81%, respectively, with a risk difference(RD) of 0.00%(95%CI:-0.07, 0.07;P = 0.97; I^2 = 0%). The clinical success was 84.81% and 85.53% in the EUS and ERCP groups, respectively, with an RD of-0.01%(95%CI:-0.12, 0.10; P = 0.90; I^2 =0%). The mean difference(MD) for the duration of the procedure was-0.12%(95%CI:-8.20, 7.97; P = 0.98; I^2 = 84%). In the EUS and ERCP groups, there were14 and 25 adverse events, respectively, with an RD of-0.06%(95%CI:-0.23, 0.12; P= 0.54; I^2 = 77%). The MD for stent patency was 9.32%(95%CI:-4.53, 23.18; P =0.19; I^2 = 44%). The stent dysfunction rate was significantly lower in the EUS t group(MD =-0.22%; 95 CI:-0.35,-0.08; P = 0.001; I^2 = 0%).CONCLUSION EUS represents an interesting alternative to ERCP for MBO drainage,demonstrating lower stent dysfunction rates compared with ERCP. Technical and clinical success, duration, adverse events and patency rates were similar.Fernanda P Logiudice Wanderlei M Bernardo Facundo Galetti Vitor M Sagae Carolina O Matsubayashi Antonio C Madruga Neto Vitor O Brunaldi Diogo T H de Moura Tomazo Franzini Spencer Cheng Sergio E Matuguma Eduardo G H de Moura 2019World Journal of Gastrointestinal Endoscopy2019,11,4:6
14Molecular detection of Helicobacter pylori antibiotic resistance in stool vs biopsy samples显示文摘AIM To compare(1) demographics in urea breath test(UBT) vs endoscopy patients; and(2) the molecular detection of antibiotic resistance in stool vs biopsy samples.METHODS Six hundred and sixteen adult patients undergoing endoscopy or a UBT were prospectively recruited to the study. The Geno Type Helico DR assay was used to detect Helicobacter pylori(H. pylori) and antibiotic resistance using biopsy and/or stool samples from CLOpositive endoscopy patients and stool samples from UBT-positive patients. RESULTS Infection rates were significantly higher in patients referred for a UBT than endoscopy(overall rates: 33% vs 19%; treatment-na?ve patients: 33% vs 14.7%, respectively). H. pylori-infected UBT patients were younger than H. pylori-infected endoscopy patients(41.4 vs 48.4 years, respectively, P < 0.005), with a higher percentage of H. pylori-infected males in the endoscopy-compared to the UBT-cohort(52.6% vs 33.3%, P = 0.03). The Geno Type Helico DR assay was more accurate at detecting H. pylori infection using biopsy samples than stool samples [98.2%(n = 54/55) vs 80.3%(n =53/66), P < 0.005]. Subset analysis using stool and biopsy samples from CLO-positive endoscopy patients revealed a higher detection rate ofresistance-associated mutations using stool samples compared to biopsies. The concordance rates between stool and biopsy samples for the detection of H. pylori DNA, clarithromycin and fluoroquinolone resistance were just 85%, 53% and 35%, respectively. CONCLUSION Differences between endoscopy and UBT patients provide a rationale for non-invasive detection of H. pylori antibiotic resistance. However, the Geno Type Helico DR assay is an unsuitable approach.Denise E Brennan Joseph Omorogbe Mary Hussey Donal Tighe Grainne Holleran Colm O'Morain Sinéad M Smith Deirdre McNamara 2016World Journal of Gastroenterology2016,22,41:6
15Parenting preschoolers with autism: Socioeconomic influences on wellbeing and sense of competence显示文摘BACKGROUND Previous research suggests that parents raising a child with autism experience higher levels of psychological distress than parents of typically developing children and parents of children with other developmental disorders. Little is known, however, about the intersection between the effects of socioeconomic status(SES) on the wellbeing and sense of parental competency of parents of preschoolers with autism and how it relates to child symptom severity.AIM To examine the relationship between their child's symptom severity, SES, as measured by neighbourhood advantage and occupational status, on the psychological wellbeing and perceived parenting competence among parents of preschoolers with autism.METHODS Parents of 117 preschool-aged children with a diagnosis of autism spectrum disorder(ASD), 107 mothers and 54 fathers, completed questionnaires about their child's symptoms of ASD and functioning, their own perceptions of their wellbeing and parental competence on entry to an early intervention program in Sydney, Australia. Parents also provided demographic information pertaining to their occupation, level of education attained and address(postcode). All children were also assessed for their severity of symptoms using the Autism Diagnostic Observation Schedule. The Australian Socioeconomic Index of occupationalstatus as a measure of familial SES and the Index of Relative Socio-economic Advantage and Disadvantage as a measure of neighbourhood advantage were used to examine the impact of SES on parental sense of competence and wellbeing.RESULTS Compared to normative populations, both mothers and fathers in our sample reported significantly higher levels of parenting sense of efficacy but lower levels of interest in the parenting role. Mothers also displayed higher levels of satisfaction. Both mothers and fathers displayed higher levels of depression than normative populations with mothers also reporting greater levels of stress and anxiety. Child symptom severity was associated with maternal parenting competency with these relationships amplified among mothers with higher familial SES and who lived in areas of greater neighbourhood advantage.Increased adaptive functioning was associated with better maternal wellbeing,particularly among mothers who lived in areas of greater neighbourhood advantage. Contrastingly, paternal parenting competence was generally not influenced by child adaptive functioning or symptom severity, although for those in higher familial SES brackets, children's symptom severity and maladaptive symptoms were negatively related to paternal sense of parenting efficacy. There was a trend towards moderate relationships between lower familial SES and greater depression, stress and anxiety among fathers, but no relationship with their child's ASD symptom severity or functioning.CONCLUSION SES differentially impacts wellbeing and sense of parenting competence and its relationship to the impact of child symptoms for mothers and fathers of preschoolers with autism.Nisha E Mathew Karen L O Burton Anne Schierbeek Rudi ?rn?ec Amelia Walter Valsamma Eapen 2019World Journal of Psychiatry2019,9,2:6
16Texture analysis on parametric maps derived from dynamic contrast-enhanced magnetic resonance imaging in head and neck cancer显示文摘AIM: To investigate the merits of texture analysis on parametric maps derived from pharmacokinetic modeling with dynamic contrast-enhanced magnetic resonance imaging(DCE-MRI) as imaging biomarkers for the prediction of treatment response in patients with head and neck squamous cell carcinoma(HNSCC). METHODS: In this retrospective study,19 HNSCC patients underwent pre- and intra-treatment DCEMRI scans at a 1.5T MRI scanner. All patients had chemo-radiation treatment. Pharmacokinetic modeling was performed on the acquired DCE-MRI images,generating maps of volume transfer rate(Ktrans) and volume fraction of the extravascular extracellular space(ve). Image texture analysis was then employed on maps of Ktrans and ve,generating two texture measures: Energy(E) and homogeneity.RESULTS: No significant changes were found for the mean and standard deviation for Ktrans and ve between pre- and intra-treatment(P > 0.09). Texture analysis revealed that the imaging biomarker E of ve was significantly higher in intra-treatment scans,relative to pretreatment scans(P < 0.04). CONCLUSION: Chemo-radiation treatment in HNSCC significantly reduces the heterogeneity of tumors.Jacobus FA Jansen Yonggang Lu Gaorav Gupta Nancy Y Lee Hilda E Stambuk Yousef Mazaheri Joseph O Deasy Amita Shukla-Dave 2016World Journal of Radiology2016,8,1:5
17双相性鳞片状腺泡状肾细胞癌:乳头状肾细胞癌的一种特殊亚型?显示文摘双相性鳞片状腺泡状肾细胞癌(BSARCC)是最近阐述的一种具有特殊形态学特征的肿瘤。本文使用常规组织学、免疫组化、阵列比较基因组杂交技术(aC GH)及荧光原位杂交技术分析来自12家医院的21例BSARCC。男性11例,女性10例,年龄范围53~79岁;肿瘤直径1.5~16 cm;14例患者获得随访信息(随访1~96个月),5例发现转移性播散。Hes O Condom Mundo E Peckova K 魏建国 刘勇 2016临床与实验病理学杂志2016,32,8:5
18Screening of ethyl acetate extract of Bridelia micrantha for hepatoprotective and anti-oxidant activities on Wistar rats显示文摘Objective:To explore the hepatoprotective and anti-oxidant activities of the methanolic leaf extract of Bridelia micrantha(B.micrantha) on paracetamol induced liver damage in Wistar rats. Methods:Parameters were measured including alanine aminotransaminase(ALT),aspartate aminotransferase(AST),alkaline phosphatase(ALP),bilirubin and total protein.The anti-oxidant effects were studied using the 1,l-Diphenynl-2-Picrylhydrazyl(DPPH) and Ferric Reducing Antioxidant Power(FRAP) assay methods.Results:B.micrantha extract decreased the level of AST in the rats given PCM from(129.47±0.921) IU/L to(57.78±1.71) IU/L(P<0.05).This was lower than the value for Silymarin which was(59.92±1.41) IU/L.ALT concentration was reduced from (150.18±2.23) IU/L to(79.10±2.01) IU/L(P<0.05).ALP was reduced from(49.86±0.85) IU/L to(29.64±1.53) IU/L(P<0.05).Total bilirubin was reduced from(2.14±0.10 mg/dL) to(0.18±0.07) mg/dL (P<0.05) while total protein was increased from(4.26±0.30) mg/dL to(6.20±0.19) mg/dL(P<0.05). Concentrations ranging from 10 - 400μg/mL of B.micrantha were assayed for antioxidant activities.The DPPH assay showed 98%antioxidant activity at concentration of 400μg/mL. The FRAP values were 0.016,0.39,0.455,0.601 and 1.382μM at 10.50,100,200 and 400μg/ mL respectively.Conclusions:Results suggest that B.micrantha has hepatoprotective and anti oxidant potentials.However,further work involving fractionation needs to done to isolate the active compound responsible for the hepatoprotective activity.Nwaehujor Chinaka O Udeh Nkeiruka E 2011Asian Pacific Journal of Tropical Medicine2011,4,10:4
19金刚石中的冰-Ⅶ相包裹体:来自地球深部地幔的含水流体证据显示文摘水在地球内部不同圈层的存在形态、分布、含量以及全球水循环一直以来都是固体地球科学研究的前沿热点问题之一。冰-Ⅶ相作为水的一种高压相,目前已经被国际矿物学会认定为一种新矿物。Tschauner O Huang S Greenberg E Prakapenka V B Rossman G R Shen A H Zhang D Newville M Lanzirotti A Tait K 张宝华 2018矿物岩石地球化学通报2018,37,6:4
20难治性疼痛和高血压在急性B型主动脉夹层中的重要性:国际急性主动脉夹层登记的意见显示文摘急性B型主动脉夹层患者,可表现出对药物治疗无效的反复、难治性疼痛和(或)难治性高血压,当出现这些症状时有时可作为介入治疗的指征。研究者利用国际急性主动脉夹层登记(international registry of a-cute aortic dissection,IRAD)的资料调查难治性疼痛和(或)难治性高血压对急性B型主动脉夹层患者临床转归的影响。张玲玉 叶鹏 Trimarchi S Eagle KA Nienaber CA Pyeritz RE Jonker FH Suzuki T O'Gara PT Hutchinson SJ Rampoldi V Grassi V Bossone E Muhs BE Evangelista A Tsai TT Froehlich JB Cooper JV Montgomery D Mein-hardt G Myrmel T Upchurch GR Sundt TM Issel-bacher EM 2010中华高血压杂志2010,18,12:4
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