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| 1 | Ciliary parathyroid hormone signaling activates transforming growth factor-βto maintain intervertebral disc homeostasis during aging显示文摘Degenerative disc disease(DDD) is associated with intervertebral disc degeneration of spinal instability. Here, we report that the cilia of nucleus pulposus(NP) cells mediate mechanotransduction to maintain anabolic activity in the discs. We found that mechanical stress promotes transport of parathyroid hormone 1 receptor(PTH1 R) to the cilia and enhances parathyroid hormone(PTH) signaling in NP cells. PTH induces transcription of integrin α_vβ_6 to activate the transforming growth factor(TGF)-β-connective tissue growth factor(CCN2)-matrix proteins signaling cascade. Intermittent injection of PTH(iPTH) effectively attenuates disc degeneration of aged mice by direct signaling through NP cells, specifically improving intervertebral disc height and volume by increasing levels of TGF-β activity, CCN2, and aggrecan. PTH1 R is expressed in both mouse and human NP cells. Importantly,knockout PTH1 R or cilia in the NP cells results in significant disc degeneration and blunts the effect of PTH on attenuation of aged discs. Thus, mechanical stress-induced transport of PTH1 R to the cilia enhances PTH signaling, which helps maintain intervertebral disc homeostasis, particularly during aging, indicating therapeutic potential of iPTH for DDD. | Liwei Zheng Yong Cao Shuangfei Ni Huabin Qi Zemin Ling Xin Xu Xuenong Zou Tianding Wu Ruoxian Deng Bo Hu Bo Gao Hao Chen Yusheng Li Jianxi Zhu Francis Tintani Shadpour Demehri Amit Jain Khaled M.Kebaish Shenghui Liao Cheryle A.Séguin Janet L.Crane Mei Wan Hongbin Lu Paul D.Sponseller Lee H.RileyIII Xuedong Zhou Jianzhong Hu Xu Cao | 2018 | Bone Research2018，6，3： | 13 |
| 2 | 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 |
| 3 | 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 |
| 4 | Effect of a retrograde-viewing device on adenoma detection rate during colonoscopy: the TERRACE study显示文摘 | Anke M. Leufkens Daniel C. DeMarco Amit Rastogi 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. Sau | 2011 | Gastrointestinal Endoscopy2011，，3： | 5 |
| 5 | Genetic Risk Factors for Post-Infectious Irritable Bowel Syndrome Following a Waterborne Outbreak of Gastroenteritis显示文摘 | Alexandra–Chloé Villani Mathieu Lemire Marroon Thabane Alexandre Belisle Geneviève Geneau Amit X. Garg William F. Clark Paul Moayyedi Stephen M. Collins Denis Franchimont John K. Marshall | 2010 | Gastroenterology2010，，4： | 4 |
| 6 | Transgenic and genome-edited fruits: background, constraints, benefits, and commercial opportunities显示文摘Breeding has been used successfully for many years in the fruit industry,giving rise to most of today’s commercial fruit cultivars.More recently,new molecular breeding techniques have addressed some of the constraints of conventional breeding.However,the development and commercial introduction of such novel fruits has been slow and limited with only five genetically engineered fruits currently produced as commercial varieties—virus-resistant papaya and squash were commercialized 25 years ago,whereas insect-resistant eggplant,non-browning apple,and pink-fleshed pineapple have been approved for commercialization within the last 6 years and production continues to increase every year.Advances in molecular genetics,particularly the new wave of genome editing technologies,provide opportunities to develop new fruit cultivars more rapidly.Our review,emphasizes the socioeconomic impact of current commercial fruit cultivars developed by genetic engineering and the potential impact of genome editing on the development of improved cultivars at an accelerated rate. | Maria Lobato-Gomez Seanna Hewitt Teresa Capell Paul Christou Amit Dhingra Patricia Sarai Giron-Calva | 2021 | Horticulture Research2021，8，1： | 2 |
| 7 | Bortezomib Provides Effective Therapy for Antibody- and Cell-Mediated Acute Rejection显示文摘 | Matthew J. Everly Jason J. Everly Brian Susskind Paul Brailey Lois J. Arend Rita R. Alloway Prabir Roy-Chaudhury Amit Govil Gautham Mogilishetty Adele H. Rike Michael Cardi George Wadih Amit Tevar E Steve Woodle | 2008 | Transplantation2008，，12： | 2 |
| 8 | Endoscopic features of sessile serrated adenomas: validation by international experts using high-resolution white-light endoscopy and narrow-band imaging显示文摘 | Yark Hazewinkel Maria López-Cerón James E. East Amit Rastogi Maria Pellisé Takeshi Nakajima Susanne van Eeden Kristien M.A.J. Tytgat Paul Fockens Evelien Dekker | 2013 | Gastrointestinal Endoscopy2013，，6： | 2 |
| 9 | Gastric food retention at endoscopy is associated with severity of liver cirrhosis显示文摘BACKGROUND Gastrointestinal symptoms are prevalent in patients with cirrhosis.Cirrhotic patients have a known predilection to delayed gastric emptying compared to those without cirrhosis.However,the contributing factors have not been fully elucidated.Retained gastric food on esophagogastroduodenoscopy(EGD)has been used as a surrogate marker for delayed gastric emptying with reasonably high specificity.Therefore,we hypothesize that the frequency of retained gastric food contents at EGD will be higher in a cirrhotic population compared to a control population without liver disease.Additionally,we hypothesize that increased frequency of gastric food contents will be associated with increased severity of cirrhosis.AIM To determine the relative frequency of delayed gastric emptying among cirrhotics as compared to non-cirrhotics and to identify associated factors.METHODSWe performed a retrospective case-control study of cirrhotic subjects whounderwent EGD at an academic medical center between 2000 and 2015. Threehundred sixty-four patients with confirmed cirrhosis, who underwent a total of1044 EGDs for the indication of esophageal variceal screening or surveillance,were identified. During the same period, 519 control patients without liverdisease, who underwent a total of 881 EGDs for the indication of anemia, wereidentified. The presence of retained food on EGD was used as a surrogate fordelayed gastric emptying. The relative frequency of delayed gastric emptyingamong cirrhotics was compared to non-cirrhotics. Characteristics of patients withand without retained food on EGD were compared using univariable andmultivariable logistic regression analysis to identify associated factors.RESULTSOverall, 40 (4.5%) patients had evidence of retained food on EGD. Cirrhotics weremore likely to have retained food on EGD than non-cirrhotics (9.1% vs 1.4%, P <0.001). Characteristics associated with retained food on univariable analysisincluded age less than 60 years (12.6% vs 5.2%, P = 0.015), opioid use (P = 0.004),Child-Pugh class C (24.1% Child-Pugh class C vs 6.4% Child-Pugh class A, P =0.007), and lower platelet count (P = 0.027). On multivariate logistic regressionanalysis, in addition to the presence of cirrhosis (adjusted OR = 5.83;95%CI: 2.32-14.7, P < 0.001), diabetes mellitus (types 1 and 2 combined) (OR = 2.34;95%CI:1.08-5.06, P = 0.031), opioid use (OR = 3.08;95%CI: 1.29-7.34, P = 0.011), andChild-Pugh class C (OR = 4.29;95%CI: 1.43-12.9, P = 0.01) were also associatedwith a higher likelihood of food retention on EGD.CONCLUSIONCirrhotics have a higher frequency of retained food at EGD than non-cirrhotics.Decompensated cirrhosis, defined by Child-Pugh class C, is associated with ahigher likelihood of delayed gastric emptying. | David B Snell Shirley Cohen-Mekelburg Russell Weg Gaurav Ghosh Adam P Buckholz Amit Mehta Xiaoyue Ma Paul J Christos Arun B Jesudian | 2019 | World Journal of Hepatology2019，11，11： | 2 |
| 10 | Strategic assets and organizational rent显示文摘 | Amit Raphael Paul J H Schoemaker | 1993 | Strategic Management Journal1993，，1： | 1 |
| 11 | Re: In Vivo Evaluation of the Third Generation Biodegradable Stent: A Novel Approach to Avoiding the Forgotten Stent Syndrome显示文摘 | Sagorika Paul Apul Goel Amit Kumar | 2013 | The Journal of Urology2013，，2： | 1 |
| 12 | Strategic Assets and Organiza- tional Rent显示文摘 | Amit Raphael Shoemaker Paul J H | 1993 | Strategic Management Journal1993，14，1： | 1 |
| 13 | Effect of Tumor Subtype on Survival and the Graded Prognostic Assessment for Patients With Breast Cancer and Brain Metastases显示文摘 | Paul W. Sperduto Norbert Kased David Roberge Zhiyuan Xu Ryan Shanley Xianghua Luo Penny K. Sneed Samuel T. Chao Robert J. Weil John Suh Amit Bhatt Ashley W. Jensen Paul D. Brown Helen A. Shih John Kirkpatrick Laurie E. Gaspar John B. Fiveash Veronica Chia | 2012 | International Journal of Radiation Oncology Biology Physics2012，，5： | 1 |
| 14 | Strate- gic assets and organizational rent 显示文摘 | AMIT RAPHAEL SCHOEM AKER PAUL J H | 1993 | Strategic Manage- ment Journal1993，14，1： | 1 |
| 15 | Selenium supplementation has no effect on serum glucose levels in men at high risk of prostate cancer (在前列腺癌高风险的男性中补硒治疗对血糖水平没有影响)显示文摘 | Amit Mohan Algotar Chui‐Hseih Hsu Parminder Singh Steven Paul Stratton | 2013 | Journal of Diabetes2013，，4： | 1 |
| 16 | Forecasting the Future of Cardiovascular Disease in the United States: A Policy Statement From the American Heart Association显示文摘 | Paul A. Heidenreich Justin G. Trogdon Olga A. Khavjou Javed Butler Kathleen Dracup Michael D. Ezekowitz Eric Andrew Finkelstein Yuling Hong S. Claiborne Johnston Amit Khera Donald M. Lloyd-Jones Sue A. Nelson Graham Nichol Diane Orenstein Peter W.F. Wilso | 2011 | Circulation2011，，8： | 1 |
| 17 | The discovery of novel calcium sensing receptor negative allosteric modulators显示文摘 | Gayatri Balan Jonathan Bauman Samit Bhattacharya Mayda Castrodad David R. Healy Michael Herr Paul Humphries Sandra Jennings Amit S. Kalgutkar Brendon Kapinos Vishal Khot Kimberly Lazarra Mei Li Yan Li Constantin Neagu Robert Oliver David W. Piotrowski Dav | 2009 | Bioorganic & Medicinal Chemistry Letters2009，，12： | 1 |
| 18 | Strategic assets and organizational rent 显示文摘 | Amit Raphael Sehoemaker Paul J H | 1993 | Strategic Management Journal1993，14，1： | 1 |
| 19 | Strategic Assets and Organizational Rent 显示文摘 | AMIT R PAUL SHOEMAKER | 1993 | Strategic Management Journal1993，14，1： | 1 |
| 20 | Strategic Assets and Organizational Rent 显示文摘 | RAPHAEL AMIT PAUL J H SCHOEMAKER | 1993 | Strategic Management Journal1993，14，1： | 1 |
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