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| 1 | IDO1 in cancer: a Gemini of immune checkpoints显示文摘Indoleamine 2,3-dioxygenase 1(IDO1)is a rate-limiting metabolic enzyme that converts the essential amino acid tryptophan(Trp)into downstream catabolites known as kynurenines.Coincidently,numerous studies have demonstrated that IDO1 is highly expressed in multiple types of human cancer.Preclinical studies have further introduced an interesting paradox:while single-agent treatment with IDO1 enzyme inhibitor has a negligible effect on decreasing the established cancer burden,approaches combining select therapies with IDO1 blockade tend to yield a synergistic benefit against tumor growth and/or animal subject survival.Given the high expression of IDO1 among multiple cancer types along with the lack of monotherapeutic efficacy,these data suggest that there is a more complex mechanism of action than previously appreciated.Similar to the dual faces of the astrological Gemini,we highlight the multiple roles of IDO1 and review its canonical association with IDO1-dependent tryptophan metabolism,as well as documented evidence confirming the dispensability of enzyme activity for its immunosuppressive effects.The gene transcript levels for IDO1 highlight its strong association with T-cell infiltration,but the lack of a universal prognostic significance among all cancer subtypes.Finally,ongoing clinical trials are discussed with consideration of IDO1-targeting strategies that enhance the efficacy of immunotherapy for cancer patients。 | Lijie Zhai Erik Ladomersky Alicia Lenzen Brenda Nguyen Ricky Patel Kristen L Lauing Meijing Wu Derek A Wainwright | 2018 | Cellular & Molecular Immunology2018,15,5: | 17 |
| 2 | 固定低剂量三联抗高血压药物与常规治疗对斯里兰卡轻度至中度高血压患者血压控制的疗效差异:一项随机临床试验显示文摘控制不良的高血压是全球领先的公共卫生问题,需要新的治疗策略。该研究评估低剂量三联抗高血压药物治疗是否能达到比常规治疗更好的血压控制。研究者纳入2016年2月至2017年5月在斯里兰卡11所城市医院诊所就诊的需要开始抗高血压治疗(未治疗的患者)或接受单药治疗的患者,进行低剂量三联降压与常规治疗比较的随机、开放性试验,随访至2017年10月。 | Web-ster R Salam A de Silva HA Selak V Stepien S Rajapakse S Amarasekara S Amarasena N Billot L de Silva AP Fernando M Guggilla R Jan S Jayawardena J Maulik PK Mendis S Munasinghe J Naik N Prabhakaran D Ranasinghe G Thom S Tisserra N Senaratne V Wijekoon S Wijeyasingam S Rodgers A Patel A 刘莉 叶鹏 | 2018 | 中华高血压杂志2018,26,12: | 7 |
| 3 | Endovascular treatment of pulmonary embolism: Selective review of available techniques显示文摘Acute pulmonary embolism(PE) is the third most common cause of death in hospitalized patients. The development of sophisticated diagnostic and therapeutic modalities for PE, including endovascular therapy, affords a certain level of complexity to the treatment of patients with this important clinical entity. Furthermore, the lack of level I evidence for the safety and effectiveness of catheter directed therapy brings controversy to a promising treatment approach. In this review paper, we discuss the pathophysiology and clinical presentation of PE, review the medical and surgical treatment of the condition, and describe in detail the tools that are available for the endovascular therapy of PE, including mechanical thrombectomy, suction thrombectomy, and fibrinolytic therapy. We also review the literature available to date on these methods, and describe the function of the Pulmonary Embolism Response Team. | John L Nosher Arjun Patel Sugeet Jagpal Christopher Gribbin Vyacheslav Gendel | 2017 | World Journal of Radiology2017,9,12: | 6 |
| 4 | Counter-regulatory phosphatases TNAP and NPP1 temporally regulate tooth root cementogenesis显示文摘Cementum is critical for anchoring the insertion of periodontal ligament fibers to the tooth root. Several aspects of cementogenesis remain unclear, including differences between acellular cementum and cellular cementum, and between cementum and bone.Biomineralization is regulated by the ratio of inorganic phosphate(Pi) to mineral inhibitor pyrophosphate(PPi), where local Piand PPi concentrations are controlled by phosphatases including tissue-nonspecific alkaline phosphatase(TNAP) and ectonucleotide pyrophosphatase/phosphodiesterase 1(NPP1). The focus of this study was to define the roles of these phosphatases in cementogenesis. TNAP was associated with earliest cementoblasts near forming acellular and cellular cementum. With loss of TNAP in the Alpl null mouse, acellular cementum was inhibited, while cellular cementum production increased, albeit as hypomineralized cementoid. In contrast, NPP1 was detected in cementoblasts after acellular cementum formation, and at low levels around cellular cementum. Loss of NPP1 in the Enpp1 null mouse increased acellular cementum, with little effect on cellular cementum.Developmental patterns were recapitulated in a mouse model for acellular cementum regeneration, with early TNAP expression and later NPP1 expression. In vitro, cementoblasts expressed Alpl gene/protein early, whereas Enpp1 gene/protein expression was significantly induced only under mineralization conditions. These patterns were confirmed in human teeth, including widespread TNAP, and NPP1 restricted to cementoblasts lining acellular cementum. These studies suggest that early TNAP expression creates a low PPienvironment promoting acellular cementum initiation, while later NPP1 expression increases PPi, restricting acellular cementum apposition. Alterations in PPihave little effect on cellular cementum formation, though matrix mineralization is affected. | Laura E Zweifler Mudita K Patel Francisco H Nociti Jr Helen F Wimer Jose L Milln Martha J Somerman Brian L Foster | 2015 | International Journal of Oral Science2015,7,1: | 5 |
| 5 | Clinical application of concentrated bone marrow aspirate in orthopaedics:A systematic review显示文摘AIM To examine the evidence behind the use of concentrated bone marrow aspirate(c BMA) in cartilage, bone, and tendon repair; establish proof of concept for the use of cB MA in these biologic environments; and provide the level and quality of evidence substantiating the use of cB MA in the clinical setting.METHODS We conducted a systematic review according to PRISMA guidelines. EMBASE, MEDLINE, and Web of Knowledge databases were screened for the use of cB MA in the repair of cartilage, bone, and tendon repair. We extracted data on tissue type, cB MA preparation, cB MA concentration, study methods, outcomes, and level of evidence and reported the results in tables and text.RESULTS A total of 36 studies met inclusion/exclusion criteria and were included in this review. Thirty-one of 36(86%) studies reported the method of centrifugation and preparation of cB MA with 15(42%) studies reporting either a cell concentration or an increase from baseline. Variation of c BMA application was seen amongst the studies evaluated. Twenty-one of 36(58%) were level of evidence Ⅳ, 12/36(33%) were level of evidence Ⅲ, and 3/36(8%) were level of evidence Ⅱ. Studies evaluated full thickness chondral lesions(7 studies), osteochondral lesions(10 studies), osteoarthritis(5 studies), nonunion or fracture(9 studies), or tendon injuries(5 studies). Significant clinical improvement with the presence of hyaline-like values and lower incidence of fibrocartilage on T2 mapping was found in patients receiving cB MA in the treatment of cartilaginous lesions. Bone consolidation and time to bone union was improved in patients receiving cB MA. Enhanced healingrates, improved quality of the repair surface on ultrasound and magnetic resonance imaging, and a decreased risk of re-rupture was demonstrated in patients receiving cB MA as an adjunctive treatment in tendon repair. CONCLUSION The current literature demonstrates the potential benefits of utilizing c BMA for the repair of cartilaginous lesions, bony defects, and tendon injuries in the clinical setting. This study also demonstrates discrepancies between the literature with regards to various methods of centrifugation, variable cell count concentrations, and lack of standardized outcome measures. Future studies should attempt to examine the integral factors necessary for tissue regeneration and renewal including stem cells, growth factors and a biologic scaffold. | Arianna L Gianakos Li Sun Jay N Patel Donald M Adams Frank A Liporace | 2017 | World Journal of Orthopedics2017,8,6: | 5 |
| 6 | Predictors of spine deformity progression in adolescent idiopathic scoliosis: A systematic review with meta-analysis显示文摘AIM: To evaluate published data on the predictors of progressive adolescent idiopathic scoliosis(AIS) in order to evaluate their efficacy and level of evidence. METHODS: Selection criteria:(1) study design: randomized controlled clinical trials, prospective cohort studies and case series, retrospective comparative and none comparative studies;(2) participants: adolescents with AIS aged from 10 to 20 years; and(3) treatment: observation, bracing, and other. Search method: Ovid MEDLINE, Embase, the Cochrane Library, Pub Medand patent data bases. All years through August 2014 were included. Data were collected that showed an association between the studied characteristics and the progression of AIS or the severity of the spine deformity. Odds ratio(OR), sensitivity, specificity, positive and negative predictive values were also collected. A metaanalysis was performed to evaluate the pooled OR and predictive values, if more than 1 study presented a result. The GRADE approach was applied to evaluate the level of evidence.RESULTS: The review included 25 studies. All studies showed statistically significant or borderline association between severity or progression of AIS with the following characteristics:(1) An increase of the Cobb angle or axial rotation during brace treatment;(2) decrease of the rib-vertebral angle at the apical level of the convex side during brace treatment;(3) initial Cobb angle severity(> 25o);(4) osteopenia;(5) patient age < 13 years at diagnosis;(6) premenarche status;(7) skeletal immaturity;(8) thoracic deformity;(9) brain stem vestibular dysfunction; and(10) multiple indices combining radiographic, demographic, and physiologic characteristics. Single nucleotide polymorphisms of the following genes:(1) calmodulin 1;(2) estrogen receptor 1;(3) tryptophan hydroxylase 1;(3) insulin-like growth factor 1;(5) neurotrophin 3;(6) interleukin-17 receptor C;(7) melatonin receptor 1B, and(8) Scoli Score test. Other predictors included:(1) impairment of melatonin signaling in osteoblasts and peripheral blood mononuclear cells(PBMC);(2) G-protein signaling dysfunction in PBMC; and(3) the level of platelet calmodulin. However, predictive values of all these findings were limited, and the levels of evidence were low. The pooled result of brace treatment outcomes demonstrated that around 27% of patents with AIS experienced exacerbation of the spine deformity during or after brace treatment, and 15% required surgical correction. However, the level of evidence is also low due to the limitations of the included studies.CONCLUSION: This review did not reveal any methods for the prediction of progression in AIS that could be recommended for clinical use as diagnostic criteria. | Andriy Noshchenko Lilian Hoffecker Emily M Lindley Evalina L Burger Christopher MJ Cain Vikas V Patel Andrew P Bradford | 2015 | World Journal of Orthopedics2015,6,7: | 4 |
| 7 | 高血压对肾小球滤过率降低与脑卒中预后相关性的影响显示文摘该研究旨在比较高血压和非高血压患者估算的肾小球滤过率(estimatedglomerularfiltrationrate,eGFR)较低与脑卒中预后的相关性。方法:获取2012和2013年中国脑卒中登记处确定出院脑卒中患者的资料。低eGFR定义为eGFR%60mL/(min·1.73m2)。应用多因素分析评估低eGFR与1年全因死亡率、复发性脑卒中、功能预后不良(改良的Rankin量表评分3~6分)的关系,分析高血压对相关性的影响。 | 刘莉 叶鹏 Wang X Wang Y Patel UD Xie Barnhart H Li Z Li H Wang C Zhao X Liu L Laskowitz DT | 2017 | 中华高血压杂志2017,25,5: | 4 |
| 8 | Green tea extract:A potential cause of acute liver failure显示文摘The use of herbal products has increased significantly in recent years.Because these products are not subject to regulation by the Food and Drug Administration and are often used without supervision by a healthcare provider,the indication for and consumption of these supplements is quite variable.Moreover,their use is generally regarded as safe and natural by the lay-public.Unfortunately,there has been an increase in the number of reported adverse events occurring with the use of herbal products.We present a case of acute impending liver failure in an adolescent male using a weightloss product containing green tea extract.Our case adds to the growing concern surrounding the ingestion of green tea extract and serves to heighten healthcare provider awareness of a potential green tea extract hepatotoxicity.Despite the generally touted benefits of green tea as a whole,clinical concern regarding its use is emerging and has been linked to its concentration in multiple herbal supplements.Interestingly,the suspected harmful compounds are those previously proposed to be advantageous for weight-loss,cancer remedy,and anti-inflammatory purposes.Yet,we emphasize the need to be aware of not just green tea extract,but the importance of monitoring patient use of all dietary supplements and herbal products. | Shreena S Patel Stacey Beer Debra L Kearney Garrett Phillips Beth A Carter | 2013 | World Journal of Gastroenterology2013,19,31: | 3 |
| 9 | Sperm retrieval success and testicular histopathology in idiopathic nonobstructive azoospermia显示文摘Prior studies have investigated sperm retrieval rates in men with non obstructive azoospermia(NOA)secondary to specific etiologies,yet most cases of NOA are idiopathic.We compared sperm retrieval rates and testicular histopathology in idiopathic NOA(iNOA)and nonidiopathic NOA(niNOA).We performed a retrospective review of men with NOA who underwent microdissection testicular sperm extraction(microTESE)between 2000 and 2016.Men with no history of malignancy or cryptorchidism and negative genetic evaluation were considered idiopathic.Multivariable regression determined the association between idiopathic etiology and primary outcomes of sperm retrieval and active spermatogenesis on histopathology.Among 224 men,86(38.4%)were idiopathic,75(33.5%)were nonidiopathic,and 63(28.1%)did not undergo genetic testing.Median age and serum testosterone were higher among iNOA or no testing versus niNOA.Median follicle-stimulating hormone(FSH)was lower among iNOA or no testing versus niNOA.A higher proportion of iNOA or no testing versus niNOA had a clinical varicocele.Sperm retrieval rates were similar between iNOA,niNOA,and no testing(41.8%vs 48.0%vs 55.6%,respectively;P=0.255).Active spermatogenesis was seen in a higher proportion of iNOA or no testing versus niNOA(31.4%and 27.0%vs 16.0%,P=0.073).On multivariable analysis,iNOA was not associated with sperm retrieval or spermatogenesis(P=0.430 and P=0.078,respectively).Rates of sperm retrieval and spermatogenesis on testis pathology were similar in men with iNOA and niNOA.These data will be useful to clinicians in preoperative counseling for men with NOA and negative genetic evaluation. | Arighno Das Joshua A Halpern Annie L Darves-Bornoz Mehul Patel James Wren Mary Kate Keeter Robert E Brannigan | 2020 | Asian Journal of Andrology2020,22,6: | 3 |
| 10 | Endoscopic ultrasound-guided fiducial marker placement in pancreatic cancer:A systematic review and meta-analysis显示文摘BACKGROUND Pancreatic cancer(PC)mortality remains high despite advances in therapy.Combination chemoradiotherapy offers modest survival benefit over monotherapy with either.Fiducial markers serve as needed landmarks for imageguided radiotherapy(IGRT).Traditionally,these markers were placed surgically or percutaneously with limitations of each.Endoscopic ultrasound-guided placement overcomes these limitations.AIM To evaluate the safety,efficacy,and feasibility of endoscopic ultrasound(EUS)-guided fiducial placement for PC undergoing IGRT.METHODS Articles were searched in MEDLINE,PubMed,and Ovid journals.Pooling was conducted by fixed and random effects models.Heterogeneity was assessed using Cochran’s Q test based upon inverse variance weights.RESULTS Initial search identified 1024 reference articles for EUS-guided fiducial placement in PC.Of these,261 relevant articles were reviewed.Data was extracted from 11 studies(n=820)meeting inclusion criteria.Pooled proportion of successful placement was 96.27%(95%CI:95.35-97.81)with fiducial migration rates low at 4.33%(95%CI:2.45-6.71).Adverse event rates remained low,with overall pooled proportion of 4.85%(95%CI:3.04-7.03).CONCLUSION EUS-guided placement of fiducial markers for IGRT of PC is safe,feasible,and efficacious.The ability to target deep structures under direct visualization while remaining minimally invasive are added benefits.Moreover,the ability to perform fine needle aspiration or celiac plexus neurolysis add value and increase patient-care efficiency.Whether EUS-guided fiducial placement improves outcomes in IGRT or offers any mortality benefits over traditional placement remains unknown and future studies are needed. | Jaymon B Patel Vakya Revanur David G Forcione Matthew L Bechtold Srinivas R Puli | 2020 | World Journal of Gastrointestinal Endoscopy2020,12,8: | 2 |
| 11 | Comparison of frequency offset estimation techniques for burst OFDM显示文摘 | Patel S Cimini L J McNair B | 2002 | Vehicular Technology Conference IEEE 55th2002,2,: | 2 |
| 12 | Efficient photon coupling from a diamond nitrogen vacancy center by integration with silica fiber显示文摘A central goal in quantum information science is to efficiently interface photons with single optical modes for quantum networking and distributed quantum computing.Here,we introduce and experimentally demonstrate a compact and efficient method for the low-loss coupling of a solid-state qubit,the nitrogen vacancy(NV)center in diamond,with a single-mode optical fiber.In this approach,single-mode tapered diamond waveguides containing exactly one high quality NV memory are selected and integrated on tapered silica fibers.Numerical optimization of an adiabatic coupler indicates that near-unity-efficiency photon transfer is possible between the two modes.Experimentally,we find an overall collection efficiency between 16%and 37%and estimate a single photon count rate at saturation above 700 kHz.This integrated system enables robust,alignment-free,and efficient interfacing of single-mode optical fibers with single photon emitters and quantum memories in solids. | Rishi N Patel Tim Schröder Noel Wan Luozhou Li Sara L Mouradian Edward H Chen Dirk R Englund | 2016 | Light(Science & Applications)2016,5,1: | 2 |
| 13 | Incidental non-benign gallbladder histopathology after cholecystectomy in an United Kingdom population: Need for routine histological analysis?显示文摘AIM To analyse the range of histopathology detected in the largest published United Kingdom series of cholecystectomy specimens and to evaluate the rational for selective histopathological analysis.METHODS Incidental gallbladder malignancy is rare in the United Kingdom with recent literature supporting selective histological assessment of gallbladders after routine cholecystectomy.All cholecystectomy gallbladder specimens examined by the histopathology department at our hospital during a five year period between March 2008 and March 2013 were retrospectively analysed.Further data was collected on all specimens demonstrating carcinoma,dysplasia and polypoid growths.RESULTS The study included 4027 patients.The majority(97%) of specimens exhibited gallstone or cholecystitis related disease.Polyps were demonstrated in 44(1.09%),the majority of which were cholesterol based(41/44).Dysplasia,ranging from low to multifocal high-grade was demonstrated in 55(1.37%).Incidental primary gallbladder adenocarcinoma was detected in 6 specimens(0.15%,5 female and 1 male),and a single gallbladder revealed carcinoma in situ(0.02%).This large single centre study demonstrated a full range of gallbladder disease from cholecystectomy specimens,including more than 1% neoplastic histology and two cases of macroscopically occult gallbladder malignancies.CONCLUSION Routine histological evaluation of all elective and emergency cholecystectomies is justified in a United Kingdom population as selective analysis has potential to miss potentially curable life threatening pathology. | Krashna Patel Khaled Dajani Satheesh Iype Nikolaos A Chatzizacharias Saranya Vickramarajah Susan Davies Rebecca Brais Siong S Liau Simon Harper Asif Jah Raaj K Praseedom Emmanuel L Huguet | 2016 | World Journal of Gastrointestinal Surgery2016,8,10: | 2 |
| 14 | Resistin is expressed in human macrophages and directly regulated by PPAR gamma activators 显示文摘 | Patel L Buckels AC Kinghom U | 2003 | Biochem Biophys Res Commun2003,300,2: | 1 |
| 15 | Disulfide-dependent multimeric assembly of resistin family hormones显示文摘 | Patel SD Rajala MW Rossetti L | 2004 | Science2004,304,5674: | 1 |
| 16 | Disulfide-dependent multimeric assembly of resistin family hormones显示文摘 | Patel SD Rajala MV Rossetti L | 2004 | Science2004,304,: | 1 |
| 17 | Endoscopic retrograde cholangiopancre- atography for stone burden in the bile and pancreatic ducts 显示文摘 | Rosenkranz L Patel SN | 2012 | Gastrointest Endosc Clin N Am2012,22,3: | 1 |
| 18 | (T, Si) policy inventory model for deteriorating items with time proportional demand 显示文摘 | Dave U Patel L K | 1981 | Journal of Operational Reasearch Society1981,32,: | 1 |
| 19 | A micmRNA upregulated in asthma airway T cells promotes TH2 cytokine production显示文摘 | Simpson L J Patel S Bhakta N R | 2014 | Nat Immunol2014,15,12: | 1 |
| 20 | Focal angiogen therapy using intramyocardial delivery of an adenovirus vector coding for vascular endothelial growth factor 121 显示文摘 | Lee L Y Patel S R Hackett N R | 2000 | Ann Thprac Surg2000,69,1: | 1 |