|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Design of 16S rRNA gene primers for 454 pyrosequencing of the human foregut microbiome显示文摘AIM:To design and validate broad-range 16S rRNA primers for use in high throughput sequencing to classify bacteria isolated from the human foregut microbiome.METHODS:A foregut microbiome dataset was constructed using 16S rRNA gene sequences obtained from oral,esophageal,and gastric microbiomes produced by Sanger sequencing in previous studies represented by 219 bacterial species.Candidate primers evaluated were from the European rRNA database.To assess the effect of sequence length on accuracy of classification,16S rRNA genes of various lengths were created by trimming the full length sequences.Sequences spanning various hypervariable regions were selected to simulate the amplicons that would be obtained using possible primer pairs.The sequences were compared with full length 16S rRNA genes for accuracy in taxonomic classification using online software at the Ribosomal Database Project (RDP).The universality of the primer set was evaluated using the RDP 16S rRNA database which is comprised of 433 306 16S rRNA genes,represented by 36 phyla.RESULTS:Truncation to 100 nucleotides(nt)downstream from the position corresponding to base 28 in the Escherichia coli 16S rRNA gene caused misclassification of 87(39.7%)of the 219 sequences,compared with misclassification of only 29(13.2%)sequences with truncation to 350 nt.Among 350-nt sequence reads within various regions of the 16S rRNA gene,the reverse read of an amplicon generated using the 343F/798R primers had the least(8.2%)effect on classification.In comparison,truncation to 900 nt mimicking single pass Sanger reads misclassified 5.0%of the 219 sequences.The 343F/798R amplicon accurately assigned 91.8%of the 219 sequences at the species level.Weighted by abundance of the species in the esophageal dataset,the 343F/798R amplicon yielded similar classification accuracy without a significant loss in species coverage(92%).Modification of the 343F/798R primers to 347F/803R increased their universality among foregut species.Assuming that a typicalpolymerase chain reaction can tolerate 2 mismatches between a primer and a template,the modified 347F and 803R primers should be able to anneal 98%and 99.6%of all 16S rRNA genes in the RDP database.CONCLUSION:347F/803R is the most suitable pair of primers for classification of foregut 16S rRNA genes but also possess universality suitable for analyses of other complex microbiomes. | Carlos W Nossa William E Oberdorf Jφrn A Aas Bruce J Paster Todd Z DeSantis Eoin L Brodie Daniel Malamud Michael A Poles Zhiheng Pei | 2010 | World Journal of Gastroenterology2010，16，33： | 16 |
| 2 | Cyclooxygenase-2 and the inflammogenesis of breast cancer显示文摘Cohesive scientific evidence from molecular, animal, and human investigations supports the hypothesis that constitutive overexpression of cyclooxygenase-2(COX-2) is a ubiquitous driver of mammary carcinogenesis, and reciprocally, that COX-2 blockade has strong potential for breast cancer prevention and therapy. Key findings include the following:(1) COX-2 is constitutively expressed throughout breast cancer development and expression intensifies with stage at detection, cancer progression and metastasis;(2) essential features of mammary carcinogenesis(mutagenesis, mitogenesis, angiogenesis, reduced apoptosis, metastasis and immunosuppression) are linked to COX-2-driven prostaglandin E2(PGE-2) biosynthesis;(3) upregulation of COX-2 and PGE-2 expression induces transcription of CYP-19 and aromatase-catalyzed estrogen biosynthesis which stimulates unbridled mitogenesis;(4) extrahe-patic CYP-1B1 in mammary adipose tissue converts paracrine estrogen to carcinogenic quinones with mutagenic impact; and(5) agents that inhibit COX-2 reduce the risk of breast cancer in women without disease and reduce recurrence risk and mortality in women with breast cancer. Recent sharp increases in global breast cancer incidence and mortality are likely driven by chronic inflammation of mammary adipose and upregulation of COX-2 associated with the obesity pandemic. The totality of evidence clearly supports the supposition that mammary carcinogenesis often evolves as a progressive series of highly specific cellular and molecular changes in response to induction of constitutive overexpression of COX-2 and the prostaglandin cascade in the 'inflammogenesis of breast cancer'. | Randall E Harris Bruce C Casto Zachary M Harris | 2014 | World Journal of Clinical Oncology2014，5，4： | 15 |
| 3 | Multidisciplinary approach for patients with esophageal cancer显示文摘Patients with esophageal cancer have a poor prognosis because they often have no symptoms until their disease is advanced. There are no screening recommendations for patients unless they have Barrett's esophagitis or a significant family history of this disease. Often, esophageal cancer is not diagnosed until patients present with dysphagia, odynophagia, anemia or weight loss. When symptoms occur, the stage is often stage Ⅲ or greater. Treatment of patients with very early stage disease is fairly straight forward using only local treatment with surgical resection or endoscopic mucosal resection. The treatment of patients who have locally advanced esophageal cancer is more complex and controversial. Despite multiple trials, treatment recommendations are still unclear due to conflicting data. Sadly, much of our data is difficult to interpret due to many of the trials done have included very heterogeneous groups of patients both histologically as well as anatomically. Additionally, studies have been underpowered or stopped early due to poor accrual. In the United States, concurrent chemoradiotherapy prior to surgical resection has been accepted by many as standard of care in the locally advanced patient. Patients who have metastatic disease are treated palliatively. The aim of this article is to describe the multidisciplinary approach used by an established team at a single high volume center for esophageal cancer, and to review the literature which guides our treatment recommendations. | Victoria M Villaflor Marco E Allaix Bruce Minsky Fernando A Herbella Marco G Patti | 2012 | World Journal of Gastroenterology2012，18，46： | 9 |
| 4 | Ustekinumab versus adalimumab for induction and maintenance therapy in biologic-naive patients with moderately to severely active Crohn's disease:a multicentre,randomised,double-blind,parallel-group,phase 3b trial显示文摘Background:Active-comparator trials are important to inform patient and physician choice.We aimed to evaluate the efficacy and safety of monotherapy with either ustekinumab or adalimumab in biologic-naive patients with moderately to severely active Crohn's disease. | Bruce E Sands | 2022 | 四川生理科学杂志2022，44，5： | 6 |
| 5 | Staining for p53 and Ki-67 increases the sensitivity of EUS-FNA to detect pancreatic malignancy显示文摘AIM:To investigate whether tumor marker staining can improve the sensitivity of endoscopic ultrasound-guided fine needle aspiration(EUS-FNA)to diagnose pancreatic malignancy. METHODS:Patients who underwent EUS-FNA were retrospectively identified.Each EUS-FNA specimen was evaluated by routine cytology and stained for tumor markers p53,Ki-67,carcinoembryonic antigen(CEA) and CA19-9.Sensitivity,specificity,positive and negative predictive values(PPV and NPV),and positive and negative likelihood ratios(PLR and NLR)were calculated in order to evaluate the performance of each test to detect malignancy. RESULTS:Sixty-one specimens had complete sets of stains,yielding 49 and 12 specimens from pancreatic adenocarcinomas and benign pancreatic lesions due to pancreatitis,respectively.Cytology alone had sensitivity and specificity of 41%and 100%to detect malignancy, respectively.In 46%of the specimens,routine cytology alone was deemed indeterminate.The addition of either p53 or Ki-67 increased the sensitivity to 51%and 53%,respectively,with perfect specificity,PPV and PLR (100%,100%and infinite).Both stains in combination increased the sensitivity to 57%.While additional staining with CEA and CA19-9 further increased the sensitivity to 86%,the specificity,PPV and PLR were significantly reduced(at minimum 42%,84%and 1,respectively).Markers in all combinations performed poorly as a negative test(NPV 26%to 47%,and NLR 0.27 and 0.70).CONCLUSION:Immunohistochemical staining for p53 and Ki-67 can improve the sensitivity of EUS-FNA to diagnose pancreatic adenocarcinoma. | Alexander W Jahng Sonya Reicher David Chung Donna Varela Rahul Chhablani Anil Dev Binh Pham Jose Nieto Rose J Venegas Samuel W French Bruce E Stabile Viktor E Eysselein | 2010 | World Journal of Gastrointestinal Endoscopy2010，2，11： | 3 |
| 6 | Colorectal cancer biomarkers: To be or not to be? Cautionary tales from a road well travelled显示文摘Colorectal cancer(CRC)is the second most common cause of cancer-related death worldwide and places a major economic burden on the global health care system.The time frame for development from premalignant to malignant disease typically spans 10-15 years,and this latent period provides an ideal opportunity for early detection and intervention to improve patient outcomes.Currently,early diagnosis of CRC is hampered by a lack of suitable non-invasive biomarkers that are clinically or economically acceptable for populationbased screening.New blood-based protein biomarkers for early detection of CRC are therefore urgently required.The success of clinical biomarker discovery and validation studies is critically dependent on understanding and adjusting for potential experimental,analytical,and biological factors that can interfere with the robust interpretation of results.In this review we outline some important considerations for research groups undertaking biomarker research with exemplars from our studies.Implementation of experimental strategies to minimise the potential effects of these problems will facilitate the identification of panels of biomarkers with the sensitivity and specificity required for the development of successful tests for the early detection and surveillance of CRC. | Kim YC Fung Edouard Nice Ilka Priebe Damien Belobrajdic Aloke Phatak Leanne Purins Bruce Tabor Celine Pompeia Trevor Lockett Timothy E Adams Antony Burgess Leah Cosgrove | 2014 | World Journal of Gastroenterology2014，20，4： | 2 |
| 7 | Hematopoietic AMPK [Beta]1 reduces mouse adipose tissue macrophage inflammation and insulin resistance in obesity显示文摘 | Galic Sandra Fullerton Morgan D Schertzer Jonathan D Sikkema Sarah Marcinko Katarina Walkley Carl R Izon David Honeyman Jane Chen Zhi-Ping van Denderen Bryce J Kemp Bruce E Steinberg Gregory R | 2011 | Journal of Clinical Investigation2011，，12： | 2 |
| 8 | Increased expression of chondroitin sulphate proteoglycans in rat hepatocellular carcinoma tissues显示文摘AIM:To investigate the expression of chondroitin sulphate proteoglycans(CSPGs)in rat liver tissues of hepatocellular carcinoma(HCC).METHODS:Thirty male Sprague Dawley rats were randomly divided into two groups:control group(n=10) and HCC model group(n=20).Rats in the HCC model groups were intragastrically administrated with 0.2%(w/v)N-diethylnitrosamine(DEN)every 5 d for 16 wk,whereas 0.9%(w/v)normal saline was administered to rats in the control group.After 16 wk from the initiation of experiment,all rats were killed and livers were collected and fixed in 4%(w/v)paraformaldehyde.All tissues were embedded in paraffin and sectioned.Histological staining(hematoxylin and eosin and Toluidine blue)was performed to demonstrate the onset of HCC and the content of sulphated glycosaminoglycan(sGAG).Immunohistochemical staining was performed to investigate the expression of chondroitin sulphate(CS)/dermatan sulphate(DS)-GAG,heparan sulphate(HS)-GAG,keratan sulphate(KS)-GAG in liver tissues.Furthermore,expression and distribution of CSPG family members,including aggrecan,versican,biglycan and decorin in liver tissues,were also immunohistochemically determined.RESULTS:After 16 wk administration of DEN,malignant nodules were observed on the surface of livers from the HCC model group,and their hepatic lobule structures appeared largely disrupted under microscope.Toluidine blue staining demonstrated that there was an significant increase in sGAG content in HCC tissues when compared with that in the normal liver tissues from the control group[0.37±0.05 integrated optical density per stained area(IOD/area)and 0.21± 0.01 IOD/area,P<0.05].Immunohistochemical studies demonstrated that this increased sGAG in HCC tissues was induced by an elevated expression of CS/DS(0.28±0.02 IOD/area and 0.18±0.02 IOD/area,P< 0.05)and HS(0.30±0.03 IOD/area and 0.17±0.02 IOD/area,P<0.01)but not KS GAGs in HCC tissues.Further studies thereby were performed to investigate the expression and distribution of several CSPG components in HCC tissues,including aggrecan,versican,biglycan and decorin.Interestingly,there was a distinct distribution pattern for these CSPG components between HCC tissues and the normal tissues.Positive staining of aggrecan,biglycan and decorin was localized in hepatic membrane and/or pericellular matrix in normal liver tissues;however,their expression was mainly observed in the cytoplasm,cell membranes in hepatoma cells and/or pericellular matrix within HCC tissues.Semi-quantitative analysis indicated that there was a higher level of expression of aggrecan(0.43± 0.01 and 0.35±0.03,P<0.05),biglycan(0.32±0.01 and 0.25±0.01,P<0.001)and decorin(0.29±0.01 and 0.26±0.01,P<0.05)in HCC tissues compared with that in the normal liver tissues.Very weak versican positive staining was observed in hepatocytes near central vein in normal liver tissues;however there was an intensive versican distribution in fibrosis septa between the hepatoma nodules.Semi-quantitative analysis indicated that the positive rate of versican in hepatoma tissues from the HCC model group was much higher than that in the control group(33.61%and 21.28%,P <0.05).There was no positive staining in lumican and keratocan,two major KSPGs,in either normal or HCC liver tissues.CONCLUSION:CSPGs play important roles in the onset and progression of HCC,and may provide potential therapeutic targets and clinical biomarkers for this prevalent tumor in humans. | Xiao-Li Jia Si-Yuan Li Shuang-Suo Dang Yan-An Cheng Xin Zhang Wen-Jun Wang Clare E Hughes Bruce Caterson | 2012 | World Journal of Gastroenterology2012，18，30： | 2 |
| 9 | Molecular size distribution of dissolved organic matte显示文摘 | Loagan Bruce E | 1990 | Jour Environmental Engineering1990，116，6： | 2 |
| 10 | Effects of fibrates on cardiovascular outcomes: a systematic review and meta-analysis显示文摘 | Min Jun Celine Foote Jicheng Lv Bruce Neal Anushka Patel Stephen J Nicholls Diederick E Grobbee Alan Cass John Chalmers Vlado Perkovic | 2010 | The Lancet . 2010 (9729)2010，，9729： | 2 |
| 11 | Choreography of AMPK activation显示文摘 | Christopher G Langendorf Bruce E Kemp | 2015 | Cell Research2015，25，1： | 2 |
| 12 | Using on-site liver 3-D reconstruction and volumetric calculations in split liver transplantation显示文摘BACKGROUND: Split liver transplantation increases the number of grafts available for transplantation. Pre-recovery assessment of liver graft volume is essential for selecting suitable recipients. The purpose of this study was to determine the ability and feasibility of constructing a 3-D model to aid in surgical planning and to predict graft weight prior to an in situ division of the donor liver. METHODS: Over 11 months, 3-D volumetric reconstruction of 4 deceased donors was performed using Pathfinder Scout~? liver volumetric software. Demographic, laboratory, operative, perioperative and survival data for these patients along with donor demographic data were collected prospectively and analyzed retrospectively.RESULTS: The average predicted weight of the grafts from the adult donors obtained from an in situ split procedure were 1130 g(930-1458 g) for the extended right lobe donors and 312 g(222-396 g) for left lateral segment grafts. Actual adult graft weight was 92% of the predicted weight for both the extended right grafts and the left lateral segment grafts. The predicted and actual graft weights for the pediatric donors were 176 g and 210 g for the left lateral segment grafts and 308 g and 280 g for the extended right lobe grafts, respectively. All grafts were transplanted except for the right lobe from the pediatric donors due to the small graft weight.CONCLUSIONS: On-site volumetric assessment of donors provides useful information for the planning of an in situ split and for selection of recipients. This information may expand the donor pool to recipients previously felt to be unsuitable due to donor and/or recipient weight. | Trevor W Reichman Brittany Fiorello Ian Carmody Humberto Bohorquez Ari Cohen John Seal David Bruce George E Loss | 2016 | Hepatobiliary & Pancreatic Diseases International2016，15，6： | 2 |
| 13 | Awareness, self-management behaviors, health literacy and kidney function relationships in specialty practice显示文摘AIM To determine the relationship between chronic kidney disease(CKD) awareness(CKD-A), self-management behaviors(CKD-SMB) knowledge, performance of CKDSMBs, health literacy(HL) and kidney function. METHODS Participants were eligible patients attending an outpatient nephrology clinic. Participants were administered: Newest Vital Sign to measure HL, CKD self-managementknowledge tool(CKD-SMKT) to assess knowledge, past performance of CKD-SMB, CKD-A. Estimated GFR(e GFR) was determined using the MDRD-4 equation. Duration of clinic participation and CKD cause were extracted from medical charts. RESULTS One-hundred-fifty patients participated in the study. e GFRs ranged from 17-152 m L/min per 1.73 m2. Majority(83%) of respondents had stage 3 or 4 CKD, low HL(63%), and were CKD aware(88%). Approximately 40%(10/25) of patients in stages 1 and 2 and 6.4%(8/125) in stages 3 and 4 were unaware of their CKD. CKD-A differed with stage(P < 0.001) but not by HL level, duration of clinic participation, or CKD cause. Majority of respondents(≥ 90%) correctly answered one or more CKD-SMKT items. Knowledge of one behavior, 'controlling blood pressure' differed significantly by CKD-A. CKD-A was associated with past performance of two CKD-SMBs, 'controlling blood pressure'(P = 0.02), and 'keeping healthy body weight'(P = 0.01). Adjusted multivariate analyses between CKD-A and:(1) HL; and(2) CKD-SMB knowledge were nonsignificant. However, there was a significant relationship between CKD-A and kidney function after controlling for demographics, HL, and CKD-SMB(P < 0.05). CONCLUSION CKD-A is not associated with HL, or better CKD-SMBs. CKD-A is significantly associated with kidney function and substantially lower e GFR, suggesting the need for focused patient education in CKD stages 1. | Radhika Devraj Matthew E Borrego A Mary Vilay Junvie Pailden Bruce Horowitz | 2018 | World Journal of Nephrology2018，7，1： | 2 |
| 14 | From symptom to diagnosis: clinical distinctions among various forms of intestinal inflammation显示文摘 | Bruce E Sands | 2004 | Gastroenterology2004，，6： | 2 |
| 15 | Serviceability of earthquake-damaged water systems: Effects of electrical power availability and power backup systems on system vulnerability显示文摘 | TAKKAO A BRUCE R E | 2008 | Reliability Engineering and System Safety2008，93，1： | 1 |
| 16 | The lightning discharge显示文摘 | Bruce C E R Golde R H | 1941 | J Inst Elect1941，，88： | 1 |
| 17 | Servant leadership at heritage bible college: a single - case study 显示文摘 | BRUCE E WINSTON | 2004 | Leadership & Organization Devdopment Journal2004，，25： | 1 |
| 18 | Surfactant properties and biodegradation of polyethoxylates from phenolic lipids 显示文摘 | TYMAN J H P BRUCE I E | 2004 | Journal of Surfactants and Detergents2004，7，2： | 1 |
| 19 | Strategic Human Resource Management Research in the United States:A Failing Grade after 30 Years?显示文摘 | Bruce E Kaufman | 2012 | Academy of Management Perspectives2012，，： | 1 |
| 20 | A Biomeehanical Comparsion of the Multisegment and Sig- nal Unit Topspin Forehand Drives in Tennis显示文摘 | Bruce E | 1989 | International of Sports Biomechanics1989，，5： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员