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| 1 | Ageing affects chondroitin sulfates and their synthetic enzymes in the intervertebral disc显示文摘The depletion of chondroitin sulfates(CSs)within the intervertebral disc(IVD)during degenerative disc disease(DDD)results in a decrease in tissue hydration,a loss of fluid movement,cell apoptosis,a loss of nerve growth inhibition and ultimately,the loss of disc function.To date,little is known with regards to the structure and content of chondroitin sulfates(CSs)during IVD ageing.The behavior of glycosaminoglycans(GAGs),specifically CSs,as well as xylosyltransferase I(XT-I)and glucuronyltransferase I(GT-I),two key enzymes involved in CS synthesis as a primer of glycosaminoglycan(GAG)chain elongation and GAG synthesis in the nucleus pulposus(NP),respectively,were evaluated in a bovine ageing IVD model.Here,we showed significant changes in the composition of GAGs during the disc ageing process(6-month-old,2-year-old and 8-year-old IVDs representing the immature to mature skeleton).The CS quantity and composition of annulus fibrosus(AF)and NP were determined.The expression of both XT-I and GT-I was detected using immunohistochemistry.A significant decrease in GAGs was observed during the ageing process.CSs are affected at both the structural and quantitative levels with important changes in sulfation observed upon maturity,which correlated with a decrease in the expression of both XT-I and GT-I.A progressive switch of the sulfation profile was noted in both NP and AF tissues from 6 months to 8 years.These changes give an appreciation of the potential impact of CSs on the disc biology and the development of therapeutic approaches for disc regeneration and repair. | Estelle C Collin Oliver Carroll Michelle Kilcoyne Marianna Peroglio Eugene See Doris Hendig Mauro Alini Sibylle Grad Abhay Pandit | 2017 | Signal Transduction and Targeted Therapy2017，2，1： | 2 |
| 2 | Colorectal cancer metastasis in the surgeon's hand? 显示文摘 | Gary A Abhay C Ian M | 2005 | Int Semin Surg Oncol2005，2，5： | 1 |
| 3 | Colorectal cancer metastasis : in the surgeon ' s hand ? 显示文摘 | Gary A Abhay C Ian M | 2005 | International Seminars in Surgical Oncology2005，2，5： | 1 |
| 4 | Sputtered indium tin oxide thin films on water cooled substrates 显示文摘 | Abhai Mansingh Vasant C V R Kumar R F | 1988 | Thin Solid Films1988，167，： | 1 |
| 5 | Passive Samplers for NOX Monitoring: A Critical Review显示文摘 | C K Varsheny Abhai Pratap Singh | 2003 | The Environmentalist2003，23，： | 1 |
| 6 | Failure of 35NCD16 Steel Fastener-a Metallurgical Investigation显示文摘 | JHA Abhay K SREEKUMAR K MITTAL M C | 2009 | Engi- neering Failure Analysis2009，16，1： | 1 |
| 7 | Trends and outcomes of liver transplantation among older recipients in the United States显示文摘BACKGROUND The average age of recipients and donors of liver transplantation(LT)is increasing.Although there has been a change in the indications for LT over the years,data regarding the trends and outcomes of LT in the older population is limited.AIM To assess the clinical characteristics,age-related trends,and outcomes of LT among the older population in the United States.METHODS We analyzed data from the United Network for Organ Sharing database between 1987-2019.The sample was split into younger group(18-64 years old)and older group(≥65 years old).RESULTS Between 1987-2019,155758 LT were performed in the United States.During this period there was a rise in median age of the recipients and percentage of LT recipients who were older than 65 years increased(P<0.05)with the highest incidence of LT among older population seen in 2019(1920,23%).Common primary etiologies of liver disease leading to LT in older patients when compared to the younger group,were non-alcoholic steatohepatitis(16.4%vs 5.9%),hepatocellular carcinoma(14.9%vs 6.9%),acute liver failure(2.5%vs 5.2%),hepatitis C cirrhosis(HCV)(19.2%vs 25.6%)and acute alcoholic hepatitis(0.13%vs 0.35%).In older recipient group female sex and Asian race were higher,while model for end-stage liver disease(MELD)score and rates of preoperative mechanical ventilation were lower(P<0.01).Median age of donor,female sex,body mass index(BMI),donor HCV positive status,and donor risk index(DRI)were significantly higher in older group(P<0.01).In univariable analysis,there was no difference in post-transplant length of hospitalization,one-year,three-year and five-year graft survivals between the two groups.In multivariable Cox-Hazard regression analysis,older group had an increased risk of graft failure during the five-year post-transplant period(hazard ratio:1.27,P<0.001).Other risk factors for graft failure among recipients were male sex,African American race,re-transplantation,presence of diabetes,mechanical ventilation at the time of LT,higher MELD score,presence of portal vein thrombosis,HCV positive status,and higher DRI.CONCLUSION While there is a higher risk of graft failure in older recipient population,age alone should not be a contraindication for LT.Careful selection of donors and recipients along with optimal management of risk factors during the postoperative period are necessary to maximize the transplant outcomes in this population. | Kenji Okumura Joon Sub Lee Abhay Dhand Hiroshi Sogawa Gregory Veillette Devon John Ryosuke Misawa Roxana Bodin David C Wolf Thomas Diflo Seigo Nishida | 2022 | World Journal of Transplantation2022，12，8： | 0 |
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