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| 1 | 帕博利珠单抗治疗伴脑转移NSCLC患者的一项非随机、开放Ⅱ期试验的长期随访结果和生物标志物分析显示文摘背景与目的我们开展了一项帕博利珠单抗用于伴未治疗脑转移的非小细胞肺癌(non-small cell lung cancer,NSCLC)或黑色素瘤患者的疗效和安全性的II期试验,旨在评估程序性死亡受体1(programmed cell death 1,PD-1)抑制剂在中枢神经系统(central nervous system,CNS)中的疗效。中期结果已发表,现报道对NSCLC队列的更新分析结果。方法这是一项开放性、单中心、II期试验。纳入标准:年龄≥18岁,诊断为晚期NSCLC并伴有≥1个5 mm-20 mm脑转移病灶,既往从未治疗或之前放疗后进展,无神经系统症状,不需要激素治疗且美国东部肿瘤协作组(Eastern Cooperative Oncology Group,ECOG)<2分。患者每2周接受一次帕博利珠单抗(10 mg/kg)治疗。队列1为程序性死亡配体1(programmed cell death ligand 1,PD-L1)≥1%的患者,队列2为PD-L1<1%或未评估的患者。主要终点是脑转移患者缓解比例。所有经治患者均纳入疗效与安全性终点的分析。该研究已结束入组,并于Clinicaltrials.gov登记注册,注册号为NCT02085070。结果2014年3月31日-2018年5月21日,共42例患者接受治疗。中位随访时间为8.3个月(IQR:4.5个月-26.2个月)。队列1的37例患者中11例有脑转移缓解[29.7%(95%CI:15.9%-47.0%)]。队列2未观察到缓解。治疗相关的3级-4级不良事件(adverse events,AEs)包括2例肺炎、1例全身症状、1例结肠炎、1例肾上腺皮质功能不全、1例高血糖症和1例低钾血症。6例(14%)患者发生了治疗相关的严重不良事件,包括肺炎、急性肾损伤、低钾血症和肾上腺皮质功能不全。没有观察到治疗相关死亡病例。结论帕博利珠单抗治疗PD-L1≥1%的NSCLC伴脑转移患者有效,且对所有纳入的未经治疗的脑转移患者安全。需要进一步探索免疫治疗用于NSCLC合并CNS转移。 | Sarah B GOLDBERG Kurt A SCHALPER Scott N GETTINGER Amit MAHAJAN Roy S HERBST Anne C CHANG Rogerio LILENBAUM Frederick H WILSON Sacit Bulent OMAY James B YU Lucia JILAVEANU Thuy TRAN Kira PAVLIK Elin ROWEN Heather GERRSH Annette KOMLO Richa GUPTA Hailey WYATT Matthew RIBEIRO Yuval KLUGER Geyu ZHOU Wei WEI Veronica L CHANG Harriet M KLUGER 董晓荣(翻译/校对) | 2021 | 中国肺癌杂志2021,24,9: | 34 |
| 2 | Ablation techniques for primary and metastatic liver tumors显示文摘Ablative treatment methods have emerged as safe and effective therapies for patients with primary and secondary liver tumors who are not surgical candidates at the time of diagnosis.This article reviews the current literature and describes the techniques,complications and results for radiofrequency ablation,microwave ablation,cryoablation,and irreversible electroporation. | Michael J Ryan Jonathon Willatt Bill S Majdalany Ania Z Kielar Suzanne Chong Julie A Ruma Amit Pandya | 2016 | World Journal of Hepatology2016,8,3: | 13 |
| 3 | Magnetic anchor guidance for endoscopic submucosal dissection and other endoscopic procedures显示文摘Endoscopic submucosal dissection(ESD) is a wellestablished, minimally invasive treatment for superficial neoplasms of the gastrointestinal tract. The universal adoption of ESD has been limited by its slow learning curve, long procedure times, and high risk of complications. One technical challenge is the lack of a second hand that can provide traction, as in conventional surgery. Reliable tissue retraction that exposes the submucosal plane of dissection would allow for safer and more efficient dissection. Magnetic anchor guided endoscopic submucosal dissection(MAGESD) has potential benefits compared to other current traction methods. MAG-ESD offers dynamic tissue retraction independent of the endoscope mimicking a surgeon's 'second hand'. Two types of magnets can be used: electromagnets and permanent magnets. In this article we review the MAG-ESD technology, published work and studies of magnets in ESD. We also review the use of magnetic anchor guidance systems in natural orifice transluminal endoscopic surgery and the idea of magnetic non-contact retraction using surface ferromagentization. We discuss the current limitations, the future potential of MAG-ESD and the developments needed for adoption of this technology. | Mohamed Mortagy Neal Mehta Mansour A Parsi Seiichiro Abe Tyler Stevens John J Vargo Yutaka Saito Amit Bhatt | 2017 | World Journal of Gastroenterology2017,23,16: | 12 |
| 4 | Mechanosignaling activation of TGFβmaintains intervertebral disc homeostasis显示文摘Intervertebral disc(IVD) degeneration is the leading cause of disability with no disease-modifying treatment.IVD degeneration is associated with instable mechanical loading in the spine, but little is known about how mechanical stress regulates nucleus notochordal(NC) cells to maintain IVD homeostasis. Here we report that mechanical stress can result in excessive integrin α_vβ_6-mediated activation of transforming growth factor beta(TGFβ), decreased NC cell vacuoles, and increased matrix proteoglycan production, and results in degenerative disc disease(DDD). Knockout of TGFβ type II receptor(TβRII) or integrin α_v in the NC cells inhibited functional activity of postnatal NC cells and also resulted in DDD under mechanical loading.Administration of RGD peptide, TGFβ, and α_vβ_6-neutralizing antibodies attenuated IVD degeneration. Thus,integrin-mediated activation of TGFβ plays a critical role in mechanical signaling transduction to regulate IVD cell function and homeostasis. Manipulation of this signaling pathway may be a potential therapeutic target to modify DDD. | Qin Bian Lei Ma Amit Jain Janet L Crane Khaled Kebaish Mei Wan Zhengdong Zhang X Edward Guo Paul D Sponseller Cheryle A Seguin Lee H Riley Yongjun Wang Xu Cao | 2017 | Bone Research2017,5,1: | 9 |
| 5 | A study on p53 gene alterations in esophageal squamous cell carcinoma and their correlation to common dietary risk factors among population of the Kashmir valley显示文摘瞄准:为了系统地检验风险因素的关联的程度,例如年龄,与原因的体的 Tp53 分子损害消费了饮食的习惯和家庭倾向在北印度的 Kashmiri 人口之中提高食道的有鳞的房间癌(ESCC ) 的致癌作用严厉。方法:所有情况(n = 51 ) 并且控制(n = 150 ) 是克什米尔山谷的永久居民。基因改变在 Tp53 肿瘤的前 ons 5-8 被决定压制或在 45 个 ESCC 盒子之中的基因组织学地由 PCR-SSCP 分析证实了。为单个癌症盒子的数据(n = 45 ) 并且住院病人控制(n = 150 ) 与非癌症,疾病在癌症的家庭历史上包括了信息,与病人的年龄组一起的三十个占优势的普通饮食的风险因素。在到从这些参数的万物有灵论的数据的 p53 前 ons 的基因损害的关联被 Chi 平方测试与健康控制一起产生到所有 45 个组织学地证实的 ESCC 盒子。结果:(77.8%) 45 中的 35 个组织学地描绘了与 45 正常样品中的 1 个对比的有的类似的体细胞突变从一样的耐心的显示出的细菌线变化从邻近的区域获得了的肿瘤样品。 SSCP 分析表明了改变在 6 上在前被发现的那很普通的 p53 基因(77.7%),那没与个人和 clinicopathological 参数的年龄相关,但是与癌症的家庭历史显示出重要词语索引( P<0.05 )( CD = 58 ),在消费的一个未知地点,和饮食的习惯建议细菌线倾向局部地种芥属蔬菜“ Hakh ”( CD = 19.5 ),红 chillies ( CD = 20.2 ),热咸苏打茶( CD = 2.37 )并且本地烤的面包( CD = 1.1 )。结论:我们的学习建议那体的染色体变化特别在 6 Tp53 基因上的前,在人种上的食道的癌症病人之中,克什米尔山谷的同质的人口是仔细与到各种各样的普通饮食的风险因素,特别热的咸茶,肉,烤的面包和“ Hakh ”的继续的暴露有关,那富于 nitrosoamines 和家庭癌症历史。 | Imtiyaz Murtaza Dhuha Mushtaq Mushtaq A Margoob Amit Dutt Nisar Ahmad Wani Ishfaq Ahmad Mohan Lal Bhat | 2006 | World Journal of Gastroenterology2006,12,25: | 8 |
| 6 | Retrograde-viewing device improves adenoma detection rate in colonoscopies for surveillance and diagnostic workup显示文摘AIM:To determine which patients might benefit most from retrograde viewing during colonoscopy through subset analysis of randomized,controlled trial data.METHODS:The Third Eye Retroscope Randomized Clinical Evaluation(TERRACE) was a randomized,controlled,multicenter trial designed to evaluate the efficacy of a retrograde-viewing auxiliary imaging device that is used during colonoscopy to provide a second video image which allows viewing of areas on the proximal aspect of haustral folds and flexures that are difficult to see with the colonoscope's forward view.We performed a post-hoc analysis of the TERRACE data to determine whether certain subsets of the patient population would gain more benefit than others from use of the device.Subjects were patients scheduled for colonoscopy for screening,surveillance or diagnostic workup,and each underwent same-day tandem examinations with standard colonoscopy(SC) and Third Eye colonoscopy(TEC),randomized to SC followed by TEC or vice versa.RESULTS:Indication for colonoscopy was screening in 176/345 subjects(51.0%),surveillance after previous polypectomy in 87(25.2%) and diagnostic workup in 82(23.8%).In 4 subjects no indication was specified.Previously reported overall results had shown a net additional adenoma detection rate(ADR) with TEC of 23.2% compared to SC.Relative risk(RR) of missing adenomas with SC vs TEC as the initial procedure was 1.92(P = 0.029).Post-hoc subset analysis shows additional ADRs for TEC compared to SC were 4.4% for screening,35.7% for surveillance,55.4% for diagnostic and 40.7% for surveillance and diagnostic combined.The RR of missing adenomas with SC vs TEC was 1.11(P = 0.815) for screening,3.15(P = 0.014) for surveillance,8.64(P = 0.039) for diagnostic and 3.34(P = 0.003) for surveillance and diagnostic combined.Although a multivariate Poisson regression suggested gender as a possibly significant factor,subset analysis showed that the difference between genders was not statistically significant.Age,bowel prep quality and withdrawal time did not significantly affect the RR of missing adenomas with SC vs TEC.Mean sizes of adenomas detected with TEC and SC were similar at 0.59 cm and 0.56 cm,respectively(P = NS).CONCLUSION:TEC allows detection of significantly more adenomas compared to SC in patients undergoing surveillance or diagnostic workup,but not in screening patients(ClinicalTrials.gov Identifier:NCT01044732). | Peter D Siersema Amit Rastogi Anke M Leufkens Paul A Akerman Kassem Azzouzi Richard I Rothstein Frank P Vleggaar Alessandro Repici Giacomo Rando Patrick I Okolo Olivier Dewit Ana Ignjatovic Elizabeth Odstrcil James East Pierre H Deprez Brian P Saunders Anthony N Kalloo Bradley Creel Vikas Singh Anne Marie Lennon Daniel C DeMarco | 2012 | World Journal of Gastroenterology2012,18,26: | 6 |
| 7 | Coagonist of glucagon-like peptide-1 and glucagon receptors ameliorates kidney injury in murine models of obesity and diabetes mellitus显示文摘AIM To investigate the role of glucagon-like peptide-1(GLP-1)/glucagon receptors coagonist on renal dysfunction associated with diabetes and obesity. METHODS Chronic high-fat diet fed C57 BL/6 J mice, streptozotocintreated high-fat diet fed C57 BL/6 J mice and diabeticC57 BLKS/J db/db mice were used as models of diabetes-induced renal dysfunction. The streptozotocintreated high-fat diet fed mice and db/db mice were treated with the GLP-1 and glucagon receptors coagonist(Aib2 C24 Chimera2, 150 μg/kg, sc) for twelve weeks, while in chronic high-fat diet fed mice, coagonist(Aib2 C24 Chimera2, 150 μg/kg, sc) treatment was continued for forty weeks. Kidney function, histology, fibrosis, inflammation, and plasma biochemistry were assessed at the end of the treatment. RESULTS Coagonist treatment decreased body weight, plasma lipids, insulin resistance, creatinine, blood urea nitrogen, urinary albumin excretion rate and renal lipids. In kidney, expression of lipogenic genes(SREBP-1 C, FAS, and SCD-1) was decreased, and expression of genes involved in β-oxidation(CPT-1 and PPAR-α) was increased due to coagonist treatment. In plasma, coagonist treatment increased adiponectin and FGF21 and decreased IL-6 and TNF-?. Coagonist treatment reduced expression of inflammatory(TNF-α, MCP-1, and MMP-9) and pro-fibrotic(TGF-β, COL1 A1, and α-SMA) genes and also improved histological derangement in renal tissue.CONCLUSION Coagonist of GLP-1 and glucagon receptors alleviated diabetes and obesity-induced renal dysfunction by reducing glucose intolerance, obesity, and hyperlipidemia. | Vishal J Patel Amit A Joharapurkar Samadhan G Kshirsagar Brijesh K Sutariya Maulik S Patel Hiren M Patel Dheerendra K Pandey Rajesh H Bahekar Mukul R Jain | 2018 | World Journal of Diabetes2018,9,6: | 5 |
| 8 | Oncogenic fingerprint of epidermal growth factor receptor pathway and emerging epidermal growth factor receptor blockade resistance in colorectal cancer显示文摘Epidermal growth factor receptor(EGFR) has been an attractive target for treatment of epithelial cancers, including colorectal cancer(CRC). Evidence from clinical trials indicates that cetuximab and panitumumab(antiEGFR monoclonal antibodies) have clinical activity in patients with metastatic CRC. The discovery of intrinsic EGFR blockade resistance in Kirsten RAS(KRAS)-mutant patients led to the restriction of anti-EGFR antibodies to KRAS wild-type patients by Food and Drug Administration and European Medicine Agency. Studies have since focused on the evaluation of biomarkers to identify appropriate patient populations that may benefit from EGFR blockade. Accumulating evidence suggests that patients with mutations in EGFR downstream signaling pathways including KRAS, BRAF, PIK3CA and PTEN could be intrinsically resistant to EGFR blockade. Recent whole genome studies also suggest that dynamic alterations in signaling pathways downstream of EGFR leads to distinct oncogenic signatures and subclones which might have some impact on emerging resistance in KRAS wild-type patients. While anti-EGFR monoclonal antibodies have a clear potential in the management of a subset of patients with metastatic CRC, further studies are warranted to uncover exact mechanisms related to acquired resistance to EGFR blockade. | Zain A Sobani Ashwin Sawant Mikram Jafri Amit Keith Correa Ibrahim Halil Sahin | 2016 | World Journal of Clinical Oncology2016,7,5: | 3 |
| 9 | Novel technique for anastomotic salvage using transanal minimally invasive surgery:A case report显示文摘Anastomotic leak(AL)after low anterior resection(LAR)can be a highly morbid complication.The incidence of AL ranges from 5%to 20%depending on patient characteristics and the distance of the anastomosis from the anal verge.Low anastomoses and leaks pose technical challenges for endoscopic treatment.The aim of this report was to describe the use of a commercially available laparoscopic energy device through a transanal minimally invasive surgery(TAMIS)port for the management of a symptomatic leak not requiring relaparotomy(grade B)after a LAR with diverting loop ileostomy.CASE SUMMARY A TAMIS GelPOINT Path port was inserted into the anus to access the distal rectum.Pneumorectum was achieved with AirSeal insufflation and a 30 degree laparoscope was introduced through a trocar.A LigaSureTM Retractable L-Hook device was then used to perform a septotomy of the chronic sinus tract identified posterior to the coloproctostomy.The procedure was then repeated twice in three weeks intervals with ultimate resolution of the chronic leak cavity.Several months after serial TAMIS septotomies,barium enema demonstrated a patent anastomosis with no evidence of persistent leak or stricture.The patient subsequently underwent ileostomy reversal and has had no significant postoperative issues.CONCLUSION TAMIS septotomy with the LigaSureTM Retractable L-Hook is a feasible and effective,minimally invasive salvage technique for the treatment of grade B ALs.Larger studies are needed to assess the generalizability and long-term results of this technique. | Oscar A Olavarria Robert L Kress Shinil K Shah Amit K Agarwal | 2019 | World Journal of Gastrointestinal Surgery2019,11,5: | 2 |
| 10 | Graphical templates for model registration显示文摘 | Kong A | 1996 | IEEE Transactions on pattern analysis and machine intelligence1996,18,3: | 1 |
| 11 | Axin-mediated CKI phosphorylation of beta -catenin at Set 45:a molecular switch for the Wnt pathway显示文摘 | Amit S Hatzubai A Birman Y Andersen J S Ben Shushan E Mann M | 2002 | Genes Dev2002,16,: | 1 |
| 12 | α-Glucosidase i nhibitory activity of Mangifera indica bark显示文摘 | Prashanth D Amit A Samiulla D S | 2001 | Fitoterapia2001,72,6: | 1 |
| 13 | Venture cap- ital syndication:improved venture selection versus the val- ue-added hypothesis显示文摘 | BRANDER J A AMIT R ANTWEILER W | 2002 | Journal of Economics and Man- agement Strategy2002,11,3: | 1 |
| 14 | The early prenatal sonographic diagnosis of renal agenesis :techniques and possible pitfalls显示文摘 | Bronshtein M Amit A Achiron R | 1994 | Prenat Diagn1994,14,4: | 1 |
| 15 | A six-wafer combustion system for a silicon micro gas turbine engine显示文摘 | Mehra Amit Zhang Xin Ayon Arturo A | 2000 | Journal of Micro Electro Mechanical Systems2000,9,4: | 1 |
| 16 | Repeated aspiration of ovarian follicles and early corpus luteum cysts in an in-vitro fertilisation programme reduces the risk of ovarian hyperstimulation syndrome in high responders显示文摘 | Amit A Yaron Y Yovel I | 1993 | Hum Reprod1993,8,8: | 1 |
| 17 | Anti mullerian hormone(AMH)--is it a new reliable marker of the ovarian reserve?Its role in predicting the ovarian response in assisted reproductive technology(ART)显示文摘 | Alshiek JA Lessing JB Amit A | 2012 | Harefuah2012,151,: | 1 |
| 18 | Older patients with colon cancer: is adjuvant chemotherapy safe and effective? 显示文摘 | Amit A Jane P | 2003 | J Am Geriatr Soc2003,51,4: | 1 |
| 19 | Inactive systemic lupus erythematosus associated with a normal stimulated Th1/Th2 eytokine secretory pattern显示文摘 | Amit M Mor A Weissgarten J | 2000 | Cytokine2000,12,9: | 1 |
| 20 | Bitumen surface energy characterization using a contact angle approach 显示文摘 | HEFER A W AMIT B DALLAS N | 2006 | Journal of Materials in Civil Engineering2006,18,6: | 1 |