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1231篇 您的检索式:作者名="THOMAS I"
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1Severe scrub typhus infection: Clinical features, diagnostic challenges and management显示文摘Scrub typhus infection is an important cause of acute undifferentiated fever in South East Asia. The clinical picture is characterized by sudden onset fever with chills and non-specific symptoms that include headache, myalgia, sweating and vomiting. The presence of an eschar, in about half the patients with proven scrub typhus infection and usually seen in the axilla, groin or inguinal region, is characteristic of scrub typhus. Common laboratory findings are elevated liver transaminases, thrombocytopenia and leukocytosis. About a third of patients admitted to hospital with scrub typhus infection have evidence of organ dysfunction that may include respiratory failure, circulatory shock, mild renal or hepatic dysfunction, central nervous system involvement or hematological abnormalities. Since the symptoms and signs are non-specific and resemble other tropical infections like malaria, enteric fever, dengue or leptospirosis, appropriate laboratory tests are necessary to confirm diagnosis. Serological assays are the mainstay of diagnosis as they are easy to perform; the reference test is the indirect immunofluorescence assay(IFA) for the detection of Ig M antibodies. However in clinical practice, the enzyme-linked immuno-sorbent assay is done due to the ease of performing this test and a good sensitivity and sensitivity when compared with the IFA. Paired samples, obtained at least two weeks apart, demonstrating a ≥ 4 fold rise in titre, is necessary for confirmation of serologic diagnosis. The mainstay of treatment is the tetracycline group of antibiotics or chloramphenicol although macrolides are used alternatively. In mild cases, recovery is complete. In severe cases with multi-organ failure, mortality may be as high as 24%.John Victor Peter Thomas I Sudarsan John Anthony J Prakash George M Varghese 2015World Journal of Critical Care Medicine2015,4,3:13
2Metastatic type 1 gastric carcinoid:A real threat or just a myth?显示文摘AIM:To describe disease characteristics and treatment modalities in a group of rare patients with metastatic gastric carcinoid type 1(GCA1).METHODS:Information on clinical,biochemical,radiological,histopathological findings,the extent of the disease,as well as the use of different therapeutic modalities and the long-term outcome were recorded.Patients’data were assessed at presentation,and thereafter at 6 to 12 monthly intervals both clinically and biochemically,but also endoscopically and histopathologically.Patients were evaluated for the presence of specific symptoms;the presence of autoimmune disorders and the presence of other gastrointestinal malignancies in other family members were also recorded.The evaluation of response to treatment was defined using established WHO criteria.RESULTS:We studied twenty consecutive patients with a mean age of 55.1 years.The mean follow-up period was 83 mo.Twelve patients had regional lymph node metastases and 8 patients had liver metastases.The primary tumor mean diameter was 20.13±10.83mm(mean±SD).The mean Ki-67 index was 6.8%±11.2%.All but one patient underwent endoscopic or surgical excision of the tumor.The disease was stable in all but 3 patients who had progressive liver disease.All patients remained alive during the follow-up period.CONCLUSION:Metastatic GCA1 carries a good overall prognosis,being related to a tumor size of≥1 cm,an elevated Ki-67 index and high serum gastrin levels.Simona Grozinsky-Glasberg Dimitrios Thomas Jonathan R Strosberg Ulrich-Frank Pape Stephan Felder Apostolos V Tsolakis Krystallenia I Alexandraki Merav Fraenkel Leonard Saiegh Petachia Reissman Gregory Kaltsas David J Gross 2013World Journal of Gastroenterology2013,19,46:11
3Efficient unidirectional polarization-controlled excitation of surface plasmon polaritons显示文摘Efficient excitation of surface plasmon polaritons(SPPs)remains one of the most challenging issues in areas of plasmonics related to information communication technologies.In particular,combining high SPP excitation efficiency and acceptance of any polarization of incident light appeared to be impossible to attain due to the polarized nature of SPPs.Here we demonstrate plasmonic couplers that represent arrays of gap SPP resonators producing upon reflection two orthogonal phase gradients in respective linear polarizations of incident radiation.These couplers are thereby capable of efficiently converting incident radiation with arbitrary polarization into SPPs that propagate in orthogonal directions dictated by the phase gradients.Fabricated couplers operate at telecom wavelengths and feature the coupling efficiency of,25%for either of two linear polarizations of incident radiation and directivity of SPP excitation exceeding 100.We further demonstrate that an individual wavelength-sized unit cell,representing a meta-scatterer,can also be used for efficient and polarization sensitive SPP excitation in compact plasmonics circuits.Anders Pors Michael G Nielsen Thomas Bernardin Jean-Claude Weeber Sergey I Bozhevolnyi 2014Light(Science & Applications)2014,3,1:11
4Current and future applications of in vitro magnetic resonance spectroscopy in hepatobiliary disease显示文摘原子磁性的回声光谱学允许细胞的生物化学和新陈代谢的学习,在整个身体在活体内并且在更高的磁场力量在试管内。因为这种技术非侵略、非选择,磁性的回声光谱学方法论广泛地在生物化学和药被使用了。房间,身体液体和纸巾的在试管内磁性的回声光谱学研究在医药生物化学被使用了调查 pathophysiological 过程,更最近,这种技术被医生使用了决定疾病畸形在活体内。这个加亮的话题说明在试管内的潜力在学习肝胆管系统的磁性的回声光谱学。在恶意、非恶意的肝疾病和胆汁作文的学习的磁性的回声光谱学学习的在试管内质子和磷的角色被讨论,特别地与关联词在活体内的参考整个身体的磁性的回声光谱学应用。在摘要,磁性的回声光谱学技术能在到内在的 pathophysiological 过程的疾病严厉和指针上提供非侵略的生物化学的信息。磁性的回声光谱学为疾病简历标记,以及估计的治疗学的反应作为一个屏蔽工具保持潜在的诺言。I Jane Cox Amar Sharif Jeremy FL Cobbold Howard C Thomas Simon D Taylor-Robinson 2006World Journal of Gastroenterology2006,12,30:10
5Dietary and metabolomic determinants of relapse in ulcerative colitis patients: A pilot prospective cohort study显示文摘AIM To identify demographic, clinical, metabolomic, and lifestyle related predictors of relapse in adult ulcerative colitis(UC) patients.METHODS In this prospective pilot study, UC patients in clinical remission were recruited and followed-up at 12 mo to assess a clinical relapse, or not. At baseline information on demographic and clinical parameters was collected. Serum and urine samples were collected for analysis of metabolomic assays using a combined direct infusion/liquid chromatography tandem mass spectrometry and nuclear magnetic resolution spectroscopy. Stool samples were also collected to measure fecal calprotectin(FCP). Dietary assessment was performed using a validated self-administered food frequency questionnaire. RESULTS Twenty patients were included(mean age: 42.7 ± 14.8 years, females: 55%). Seven patients(35%) experienced a clinical relapse during the follow-up period. While 6 patients(66.7%) with normal body weight developed a clinical relapse, 1 UC patient(9.1%) who was overweight/obese relapsed during the follow-up(P = 0.02). At baseline, poultry intake was significantly higher in patients who were still in remission during follow-up(0.9 oz vs 0.2 oz, P = 0.002). Five patients(71.4%) with FCP > 150 μg/g and 2 patients(15.4%) with normal FCP(≤ 150 μg/g) at baseline relapsed during the follow-up(P = 0.02). Interestingly, baseline urinary and serum metabolomic profiling of UC patients with or without clinical relapse within 12 mo showed a significant difference. The most important metabolites that were responsible for this discrimination were trans-aconitate, cystine and acetamide in urine, and 3-hydroxybutyrate, acetoacetate and acetone in serum. CONCLUSION A combination of baseline dietary intake, fecal calprotectin, and metabolomic factors are associated with risk of UC clinical relapse within 12 mo.Ammar Hassanzadeh Keshtel iFloris F van den Brand Karen L Madsen Rupasri Mandal Rosica ValchevaKaren I Kroeker Beomsoo Han Rhonda C Bell Janis Cole Thomas Hoevers David S Wishart Richard N Fedorak Levinus A Dieleman 2017World Journal of Gastroenterology2017,23,21:9
6Correlation analysis of dual-energy CT iodine maps with quantitative pulmonary perfusion MRI显示文摘AIM:To correlate dual-energy computed tomography(DECT) pulmonary angiography derived iodine maps with parameter maps of quantitative pulmonary perfusion magnetic resonance imaging(MRI).METHODS:Eighteen patients with pulmonary perfusion defects detected on DECT derived iodine maps were included in this prospective study and additionally underwent time-resolved contrast-enhanced pulmonary MRI [dynamic contrast enhanced(DCE)-MRI].DCE-MRI data were quantitatively analyzed using a pixel-by-pixel deconvolution analysis calculating regional pulmonary blood flow(PBF),pulmonary blood volume(PBV) and mean transit time(MTT) in visually normal lung parenchyma and perfusion defects.Perfusion parameterswere correlated to mean attenuation values of normal lung and perfusion defects on DECT iodine maps.Two readers rated the concordance of perfusion defects in a visual analysis using a 5-point Likert-scale(1 = no correlation,5 = excellent correlation).RESULTS:In visually normal pulmonary tissue mean DECT and MRI values were:22.6 ± 8.3 Hounsfield units(HU);PBF:58.8 ± 36.0 mL/100 mL per minute;PBV:16.6 ± 8.5 mL;MTT:17.1 ± 10.3 s.In areas with restricted perfusion mean DECT and MRI values were:4.0 ± 3.9 HU;PBF:10.3 ± 5.5 mL/100 mL per minute,PBV:5 ± 4 mL,MTT:21.6 ± 14.0 s.The differences between visually normal parenchyma and areas of restricted perfusion were statistically significant for PBF,PBV and DECT(P < 0.0001).No linear correlation was found between MRI perfusion parameters and attenuation values of DECT iodine maps(PBF:r = 0.35,P = 0.15;PBV:r = 0.34,P = 0.16;MTT:r = 0.41,P = 0.08).Visual analysis revealed a moderate correlation between perfusion defects on DECT iodine maps and the parameter maps of DCE-MRI(mean score 3.6,k 0.45).CONCLUSION:There is a moderate visual but not statistically significant correlation between DECT iodine maps and perfusion parameter maps of DCE-MRI.Jan Hansmann Paul Apfaltrer Frank G Zoellner Thomas Henzler Mathias Meyer Gerald Weisser Stefan O Schoenberg Ulrike I Attenberger 2013World Journal of Radiology2013,5,5:6
7直接评估吗啡刺激糖尿病人隐静脉内皮一氧化氮释放减少显示文摘to directly measure in real time basal and stimulated levels of NO released from human saphenous vein endothelium and to quantify the expression of the μopiate receptor, which has been linked with NO release. METHODS: Saphenous vein segments from patients with type 2 diabetes ( n = 12) and patients without diabetes (n =8) were obtained. The release of NO was measured directly from the endothelium using a NO-specific amperometric probe. NΩ-nitro-L-arginine methyl ester (L-NAME, 0.1 mmol/L), a NO synthase (NOS) inhibitor, or morphine (1 μmol/L), a stimulant, was administered and the measurements were repeated. Values were reported relative to the mean initial measurement of NO release from diabetic endothelium, which was defined as the relative zero level of NO release. A RT-PCR was then performed on the endothelium to measureμ opiate receptor expression. RESULTS: Diabetic patients (n = 12) showed a relative and significantly diminished basal level of released NO, (0.049± 0.012) nmol/L, comparedThomas V BILHNGER, James A VOSSWINKEL, Patrick CADET, Christos M RIALAS, Harold I MAGAZINE, George B STEFANO(Division of Cardiothoracic Surgery, Department of Surgery, University Hospital and Medical Center, HSC, T19-080, Stony Brook, New York 11794-8191 Neuroscience Research Institute, State University of New York College at Old Westbury, Old Westbury, New York , USA) 2002Acta Pharmacologica Sinica2002,23,2:3
8Activity of Angiogenesis Inhibitors in Metastatic Epithelioid Hemangioendothelioma:A Case Report显示文摘This report describes a patient with metastatic epithelioid hemangioendothelioma treated with bevacizumab and nanoparticle albumin-bound paclitaxel.The treatment was well tolerated and led to the stabilization of an aggressive variant of the disease. This case report is the first one that describes the activity of the combination of chemotherapy and bevacizumab in epithelioid hemangioendothelioma.Literature describing the activity of bevacizumab and other agents(thalidomide,lenalidomide,and interferon) believed to possess anti-angiogenic activities is also reviewed.Sumit Gaur Alireza Torabi Thomas I O'Neill 2012Clinical oncology and cancer resexreh2012,9,2:3
9The constituent equation of piezoelectric bi- morphs显示文摘SMITS Jan G DALKE Susan I COONEY Thomas K 1991Sensors and Actuator A1991,28,1:2
10显示文摘Thomas I M 1986Appl Opt1986,25,9:2
11On the Nature of the P-Wave Velocity Gradient in the Inner Core beneath Central America显示文摘We conduct an experiment to investigate whether linearity in the observed velocity gradient in the volume of the inner core sampled by the PKP ray paths beneath Central America is a robust approximation. Instead of solving an optimization problem, we approach it within the Bayesian inference. This is an ensemble approach, where model specification is relaxed so that instead of only one solution, groups of reasonable models are acceptable. Furthermore, in transdimensional Bayesian inference used here, the number of basis functions needed to model observations is by itself an unknown. Our modeling reveals that in the ensemble of models, the most likely are those containing only 2 nodes(linear trend). Thus our result justifies the assumption used for the determination of inner core rotation with respect to the rest of the mantle that the observed gradient is constant in its nature(linear). Recent observations in seismology suggest that it is likely that the spatial variability in elastic parameters is a widespread phenomenon in the inner core. Future array observations will further constrain spatial extent and magnitude of velocity changes and show whether there is a significant difference between these observations in the two quasi-hemispheres of the inner core.Hrvoje Tkali Thomas Bodin Mallory Young Malcolm Sambridge 2013Journal of Earth Science2013,24,5:2
12Comparative effectiveness of axitinib versus sorafenib in advanced renal cell carcinoma (AXIS): a randomised phase 3 trial显示文摘Brian I Rini Bernard Escudier Piotr Tomczak Andrey Kaprin Cezary Szczylik Thomas E Hutson M Dror Michaelson Vera A Gorbunova Martin E Gore Igor G Rusakov Sylvie Negrier Yen-Chuan Ou Daniel Castellano Ho Yeong Lim Hirotsugu Uemura Jamal Tarazi David Cella 2011The Lancet . 2011 (9807)2011,,9807:2
13Comparative effectiveness of axitinib versus sorafenib in advanced renal cell carcinoma (AXIS): a randomised phase 3 trial显示文摘Brian I Rini Bernard Escudier Piotr Tomczak Andrey Kaprin Cezary Szczylik Thomas E Hutson M Dror Michaelson Vera A Gorbunova Martin E Gore Igor G Rusakov Sylvie Negrier Yen-Chuan Ou Daniel Castellano Ho Yeong Lim Hirotsugu Uemura Jamal Tarazi David Cella 2011The Lancet2011,,9807:2
14Fluctuation of visual analog scale pain scores and opioid consumption before and after total hip arthroplasty显示文摘BACKGROUND Patients who undergo orthopedic procedures are often given excess opioid medication.Understanding the relationship between pain and opioid consumption following total hip arthroplasty(THA)is key to creating safe and effective opioid prescribing guidelines.AIM To evaluate the association between the quantity of opioid consumption in relation to pain scores both pre-and postoperatively in patients undergoing primary THA.METHODS We retrospectively reviewed patients who underwent primary THA from November 2018-May 2019 and answered both the visual analog scale(VAS)pain and opioid medication questionnaires pre-and postoperatively.Both surveys were delivered daily for 7-days before surgery through the first 30 postoperative days.Survey results were divided into preoperative,postoperative days 1-7,postoperative days 8-14,and postoperative days 15-30 for analysis.Mean opioid pill consumption and VAS pain scores in each time period were determined and compared to patients’preoperative status using hierarchical Poisson and linear regressions,respectively.RESULTS There were 105 patients included.Mean VAS pain scores were the highest preoperatively 7.41±1.72.However,VAS pain scores significantly declined in each successive postoperative category compared to preoperative scores:postoperative day 1-7(5.07±1.79;P<0.001),postoperative day 8-14(3.60±1.64;P<0.001),and postoperative day 15-30(3.15±1.63;P<0.001).Mean opioid pill consumption preoperatively was 0.68±1.29 pills.Compared to preoperative opioid consumption,opioid use was significantly greater between postoperative days 1-7(1.51±1.58;P=0.001)and postoperative days 8-14(1.00±1.27;P=0.043).Opioid consumption declined below preoperative levels between postoperative days 15-30(0.35±0.72;P=0.160)which correlates with a VAS pain score of 3.15.CONCLUSION All patients experienced significant benefit and pain relief from having undergone THA.Average postoperative opioid consumption decreased below preoperative consumption between postoperative days 15-30,which was associated with a VAS pain score of 3.15.These results can be used to appropriately guide opioid prescribing practices and set patient expectations regarding pain management following THA.Vivek Singh Alex Tang Thomas Bieganowski Utkarsh Anil William Macaulay Ran Schwarzkopf Roy I Davidovitch 2022World Journal of Orthopedics2022,13,8:2
15Empagliflozin alleviates podocytopathy and enhances glomerular nephrin expression in db/db diabetic mice显示文摘BACKGROUND Modern guidelines recommend sodium-glucose cotransporter-2(SGLT2)inhibitors as the preferred antihyperglycemic agents for patients with type 2 diabetes and chronic kidney disease.However,the mechanisms underlying the renal protective effect of SGLT2 inhibitors are not fully understood.structure of podocytes and nephrin expression in glomeruli in db/db diabetic mice.METHODS We treated 8-wk-old male db/db mice with EMPA(10 mg/kg/d)or vehicle for 8 wk.Age-matched male db/+mice were included as non-diabetic controls.Parameters of body composition,glycemic and lipid control,and plasma concentrations of leptin,insulin and glucagon were assessed.We evaluated renal hypertrophy as kidney weight adjusted to lean mass,renal function as plasma levels of creatinine,and albuminuria as the urinary albumin-to-creatinine ratio(UACR).Renal structures were studied by light and transmission electron microscopy with a focus on mesangial volume and podocyte structure,respectively.Glomerular nephrin and transforming growth factor beta(TGF-β)were assessed by immunohistochemistry.RESULTS Severe obesity and hyperglycemia developed in db/db mice prior to the start of the experiment;increased plasma concentrations of fructosamine,glycated albumin,cholesterol,leptin,and insulin,and elevated UACR were detected.Mesangial expansion,glomerular basement membrane thickening,and increased area of TGF-βstaining in glomeruli were revealed in vehicle-treated mice.Podocytopathy was manifested by effacement of foot processes;nephrin-positive areas in glomeruli were reduced.EMPA decreased the levels of glucose,fructosamine and glycated albumin,UACR,kidney hypertrophy,mesangial expansion,glomerular basement membrane thickening,and glomerular TGF-βstaining,alleviated podocytopathy and restored glomerular staining of nephrin.CONCLUSION These data indicate that EMPA attenuates podocytopathy in experimental diabetic kidney disease.The anti-albuminuric effect of EMPA could be attributed to mitigation of podocyte injury and enhancement of nephrin expression.Vadim V Klimontov Anton I Korbut Iuliia S Taskaeva Nataliya P Bgatova Maksim V Dashkin Nikolai BOrlov Anna S Khotskina Evgenii L Zavyalov Thomas Klein 2020World Journal of Diabetes2020,11,12:2
16显示文摘Evans E J Thomas I T 1996Biomaterials1996,17,1:2
17Achieving Effective Implementation and Evaluation of a Collaborative Land Use Planning Process显示文摘Albert Karin H Thomas I Gunton J C Day 2004Environments2004,31,3:1
18Effects of repeated exhaustive exercise on myocardial subcellular membrane structures显示文摘Thomas D P Marshall K I 1988Int J Sports Med1988,9,4:1
19Post-collisional magmatism in the central East African orogen: The Maevarano suite of north Madagascm显示文摘Goodenough K M Thomas R J De Waele B Key R M Schofield D I Bauer W Tucker R D Kafahatelo J M Rabrimanana M Ralison A V Randriamananjma T 2010Lithos2010,116,12:1
20Alkali treatment for rapid preparation of plant material for reliable PCR analysis显示文摘Klimyuk V I Carroll BJ Thomas C M 1993Plant J1993,,3:1
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