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| 1 | Pancreatic stellate cell: Pandora's box for pancreatic disease biology显示文摘Pancreatic stellate cells(PSCs) were identified in the early 1980 s, but received much attention after 1998 when the methods to isolate and culture them from murine and human sources were developed. PSCs contribute to a small proportion of all pancreatic cells under physiological condition, but are essential for maintaining the normal pancreatic architecture. Quiescent PSCs are characterized by the presence of vitamin A laden lipid droplets. Upon PSC activation, these perinuclear lipid droplets disappear from the cytosol, attain a myofibroblast like phenotype and expresses the activation marker, alpha smooth muscle actin. PSCs maintain their activated phenotype via an autocrine loop involving different cytokines and contribute to progressive fibrosis in chronic pancreatitis(CP) and pancreatic ductal adenocarcinoma(PDAC). Several pathways(e.g., JAK-STAT, Smad, Wnt signaling, Hedgehog etc.), transcription factors and mi RNAs have been implicated in the inflammatory and profibrogenic function of PSCs. The role of PSCs goes much beyond fibrosis/desmoplasia in PDAC. It is now shown that PSCs are involved in significant crosstalk between the pancreatic cancer cells and the cancer stroma. These interactions result in tumour progression, metastasis, tumour hypoxia, immune evasion and drug resistance. This is the rationale for therapeutic preclinical and clinical trials that have targeted PSCs and the cancer stroma. | Ratnakar R Bynigeri Aparna Jakkampudi Ramaiah Jangala Chivukula Subramanyam Mitnala Sasikala G Venkat Rao D Nageshwar Reddy Rupjyoti Talukdar | 2017 | World Journal of Gastroenterology2017，23，3： | 25 |
| 2 | Autologous mobilized peripheral blood CD34^+ cell infusion in non-viral decompensated liver cirrhosis显示文摘AIM: To study the effect of mobilized peripheral blood autologous CD34 positive(CD34+) cell infusion in patients with non-viral decompensated cirrhosis.METHODS: Cirrhotic patients of non-viral etiology were divided into 2 groups based on their willingness to be listed for deceased donor liver transplant(DDLT)(control, n = 23) or to receive autologous CD34+ cell infusion through the hepatic artery(study group, n= 22). Patients in the study group were admitted to hospital and received granulocyte colony stimulating factor injections 520 μg/d for 3 consecutive days to mobilize CD34+ cells from the bone marrow. On day 4,leukapheresis was done and CD34+ cells were isolated using CliniMAC magnetic cell sorter. The isolated CD34+ cells were infused into the hepatic artery under radiological guidance. The patients were discharged within 48 h. The control group received standard of care treatment for liver cirrhosis and were worked up for DDLT as per protocol of the institute. Both groups were followed up every week for 4 wk and then every month for 3 mo.RESULTS: In the control and the study group, the cause of cirrhosis was cryptogenic in 18(78.2%) and16(72.72%) and alcohol related in 5(21.7%) and6(27.27%), respectively. The mean day 3 cell count(cells/μL) was 27.00 ± 20.43 with a viability of 81.84± 11.99%. and purity of 80%-90%. Primary end point analysis revealed that at 4 wk, the mean serum albumin in the study group increased significantly(2.83± 0.36 vs 2.43 ± 0.42, P = 0.001) when compared with controls. This improvement in albumin was,however, not sustained at 3 mo. However, at the end of3 mo there was a statistically significant improvement in serum creatinine in the study group(0.96 ± 0.33 vs 1.42 ± 0.70, P = 0.01) which translated into a significant improvement in the Model for End-Stage Liver Disease score(15.75 ± 5.13 vs 19.94 ± 6.68,P = 0.04). On statistical analysis of secondary end points, the transplant free survival at the end of 1 mo and 3 mo did not show any significant difference(P =0.60) when compared to the control group. There was no improvement in aspartate transaminase, alanine transaminase, and bilirubin at any point in the study population. There was no mortality benefit in the study group. The procedure was safe with no procedural or treatment related complications.CONCLUSION: Autologous CD 34+ cell infusion is safe and effectively improves liver function in the short term and may serve as a bridge to liver transplantation. | Mithun Sharma Padaki Nagaraja Rao Mitnala Sasikala Mamata Reddy Kuncharam Chimpa Reddy Vardaraj Gokak BPSS Raju Jagdeesh R Singh Piyal Nag D Nageshwar Reddy | 2015 | World Journal of Gastroenterology2015，21，23： | 9 |
| 3 | Constrained optimization of heat exchangers显示文摘 | Ramananda Rao R Shrinivasa U Srinivasan J | 1996 | Chemical Engineering1996，，6： | 5 |
| 4 | Exploring the structural and functional effect of pRB by significant nsSNP in the coding region of RB1 gene causing retinoblastoma显示文摘In this study,we identified the most deleterious nsSNP in RB1 gene through structural and functional properties of its protein (pRB) and investigated its binding affinity with E2F-2.Out of 956 SNPs,we investigated 12 nsSNPs in coding region in which three of them (SNPids rs3092895,rs3092903 and rs3092905) are commonly found to be damaged by I-Mutant 2.0,SIFT and PolyPhen programs.With this effort,we modeled the mutant pRB proteins based on these deleterious nsSNPs.From a comparison of total energy,stabilizing residues and RMSD of these three mutant proteins with native pRB protein,we identified that the major mutation is from Glutamic acid to Glycine at the residue position of 746 of pRB.Further,we compared the binding efficiency of both native and mutant pRB (E746G) with E2F-2.We found that mutant pRB has less binding affinity with E2F-2 as compared to native type.This is due to sixteen hydrogen bonding and two salt bridges that exist between native type and E2F-2,whereas mutant type makes only thirteen hydrogen bonds and one salt bridge with E2F-2.Based on our investigation,we propose that the SNP with an id rs3092905 could be the most deleterious nsSNP in RB1 gene causing retinoblastoma. | Rajasekaran R Rao Sethumadhavan | 2010 | Science China(Life Sciences)2010，53，2： | 4 |
| 5 | Effect of Commiphora mukul gum resin on hepatic marker enzymes,lipid peroxidation and antioxidants status in pancreas and heart of streptozotocin induced diabetic rats显示文摘Objective:To study the antioxidant efficacy of Commiphora mukul(C.mukul) gum resin ethanolic extract in streptozotocin(STZ) induced diabetic rats.Methods:The male Wistar albino rats were randomly divided into four groups of eight animals each:Control group(C),CM-treated control group(C_+CMEE),Diabetic control group(D),CM- treated diabetic group(D_+CMEE).Diabetes was induced by intraperitoneal injection of STZ(55 mg/kg/ bwt).After being confirmed the diabetic rats were treated with C.mukul gum resin ethanolic extract(CMEE) for 60 days.The biochemical estimations like antioxidant,oxidative stress marker enzymes and hepatic marker enzymes of tissues were performed.Results:The diabetic rats showed increased level of enzymatic activities aspartate aminotransaminase(AST),alanine aminotransaminase(ALT) in liver and kidney and oxidative markers like lipid peroxidation(LPO) and protein oxidation(PO) in pancreas and heart. Antioxidant enzyme activities were significantly decreased in the pancreas and heart compared to control group.Administration of CMEE(200 mg/kg bw) to diabetic rats for 60 days significantly reversed the above parameters towards normalcy.Conclusions:In conclusion,our data indicate the preventive role of C.mukul against STZ-induced diabetic oxidative stress;hence this plant could be used as an adjuvant therapy for the prevention and/or management of diabetes and aggravated antioxidant status. | Ramesh B Karuna R Sreenivasa Reddy S Haritha K Sai Mangala D Sasi Bhusana Rao B Saralakumari D | 2012 | Asian Pacific Journal of Tropical Biomedicine2012，2，11： | 3 |
| 6 | Benefits of the use of blood conservation in scoliosis surgery显示文摘AIM To investigate whether autologous blood transfusion(ABT) drains and intra-operative cell salvage reduced donor blood transfusion requirements during scoliosis surgery.METHODS Retrospective data collection on transfusion requirements of patients undergoing scoliosis surgery is between January 2006 and March 2010. There were three distinct phases of transfusion practice over this time: Group A received 'traditional treatment' with allogeneic red cell transfusion(ARCT) in response to an intra- or postoperative anaemia(Hb < 8 g/d L or a symptomatic anaemia); Group B received intra-operative cell salvage in addition to 'traditional treatment'. In group C,ABT wound drains were used together with both intra-operative cell salvage and 'traditional treatment'.RESULTS Data from 97 procedures on 77 patients,there was no difference in mean preoperative haemoglobin levels between the groups(A: 13.1 g/d L; B: 13.49 g/d L; C: 13.66 g/d L). Allogeneic red cell transfusion was required for 22 of the 37 procedures(59%) in group A,17 of 30(57%) in group B and 16 of 30(53%) in group C. There was an overall 6% reduction in the proportion of patients requiring an ARCT between groups A and C but this was not statistically significant(χ2 = 0.398). Patientsin group C received fewer units(mean 2.19) than group B(mean 2.94)(P = 0.984) and significantly fewer than those in group A(mean 3.82)(P = 0.0322). Mean length of inpatient stay was lower in group C(8.65 d) than in groups B(12.83) or A(12.62).CONCLUSION When used alongside measures to minimise blood loss during surgery,ABT drains and intra-operative cell salvage leads to a reduced need for donor blood transfusion in patients undergoing scoliosis surgery. | Peter R Loughenbury Lyeanda Berry Ben T Brooke Abhay S Rao Robert A Dunsmuir Peter A Millner | 2016 | World Journal of Orthopedics2016，7，12： | 3 |
| 7 | TSC1-mTOR-PLK轴以阶段特异性方式调节从施旺细胞增殖到髓鞘形成的内稳态开关显示文摘恰如其分的外周髓鞘形成取决于雪旺细胞增殖与分化进程间的平衡。丝氨酸/苏氨酸激酶(mTOR)整合多种环境因素,是细胞生长、代谢、发挥作用的中枢调节者。本文报道了一种mTOR的负性调节剂——结节性硬化复合体(TSC1),通过控制细胞增殖和髓鞘稳态,建立了雪旺细胞谱系进展和髓鞘形成的阶段依赖性程序。小鼠雪旺细胞祖细胞中TSC1的解离导致mTOR信号通路激活,继而导致雪旺细胞过量增殖,分化受阻,髓鞘形成减少。转录组分析显示,TSC1突变体中的mTOR活化使得polo样激酶(PLK)依赖性通路和细胞周期调节剂上调。弱化mTOR或者对PLK进行药理抑制部分挽救了因TSC1缺失导致的外周神经发育过程中的髓鞘形成减少。相较之下,成年小鼠成熟雪旺细胞中TSC1缺失可导致髓鞘的过度增殖和过度生长。本文的发现提示了TSC1-mTOR-PLK信号轴在控制雪旺细胞的发育过程中,从增殖到分化和髓鞘内稳态中起到的阶段特异性功能。 | Jiang M Rao R Wang J Wang J1 Xu L Wu LM Chan JR Wang H Lu QR 聂昊(编译) | 2018 | 神经损伤与功能重建2018，13，5： | 2 |
| 8 | A note on constrained M-estimation and its recursive analog in multivariate linear regression models显示文摘In this paper,the constrained M-estimation of the regression coeffcients and scatter parameters in a general multivariate linear regression model is considered.Since the constrained M-estimation is not easy to compute,an up-dating recursion procedure is proposed to simplify the com-putation of the estimators when a new observation is obtained.We show that,under mild conditions,the recursion estimates are strongly consistent.In addition,the asymptotic normality of the recursive constrained M-estimators of regression coeffcients is established.A Monte Carlo simulation study of the recursion estimates is also provided.Besides,robustness and asymptotic behavior of constrained M-estimators are briefly discussed. | RAO Calyampudi R WU YueHua | 2009 | Science China Mathematics2009，52，6： | 2 |
| 9 | Discrete Cosine Transform Filtering显示文摘 | Chiptrasert B Rao K R | 1990 | Signal Processing1990，19，3： | 2 |
| 10 | Hypothesis testing for long - term memory in hydrologic series 显示文摘 | Rao A R Bhattachary D | 1999 | Journal of Hydrology1999，216，： | 2 |
| 11 | Effect of pH on the dispersability of silicon carbide powders in aqueous media显示文摘 | RAO R R ROOPA H N KANNAN T S | 1999 | Ceram Int1999，25，4： | 2 |
| 12 | 浸渍硅胶薄层色谱板分离钴和镍及数字图像分析法定量(英文)显示文摘Thin layer chromatography(TLC) of cobalt and nickel has been performed on silica gel layers induced with alkali mediated cellulose extract.A novel combination of 10% aqueous solutions of Tween-20 and potassium thiocyanate in 1∶1(v/v) was identified as the best mobile phase for the selective separation of Co2+from Ni2+on the impregnated Silica Gel G layers.The chromatographic characteristics of the cations were studied and the limits of detection as well as the limits of quantification for Co2+and Ni2+were determined.The quantitative estimation of the cations was achieved from the digital image analysis of respective chromatograms.The proposed quantitative method was successfully applied with 0-0.50% error for the determination of Co2+from Ni2+in spiked samples of bauxite,soil and rock containing common cations such as Al3+,Fe2+,Ti4+,Zn2+,Mn2+,Cu2+,Cr6+,Mg2+,etc.under the optimized chromatographic conditions. | P A MOHAMED NAJAR R G SONALI M T NIMJE K V RAMANA RAO | 2012 | 色谱2012，30，10： | 2 |
| 13 | New technique of microencapsulation by EVA copolymer显示文摘 | Chowdary K P R Rao N K | 2002 | J Sci ind Res2002，61，： | 1 |
| 14 | A Multidimensional Trust Formation Model in B-to-C Ecommerce:A Conceptual Framework and Content Analyses of Academia/Practitioner Perspectives 显示文摘 | Kim D J Song Y I Braynov S B Rao H R | 2005 | Decision Support Systems2005，40，2： | 1 |
| 15 | Automatic extraction of tank outlets in a sub-watershed using digital elevation models显示文摘 | Nisar A hamed T R Gopal Rao K Murthy J S R | 2002 | Agricultural Water Management2002，57，3： | 1 |
| 16 | The active sites of the influenza cap-dependent endnuclease are on different polymerase subunit 显示文摘 | Li M L Rao P Krug R M | 2001 | EMBO J2001，20，7： | 1 |
| 17 | Developmental and regional changes in the neurochemical profile of the rat brain determined by invivo ^1H NMR spectroscopy显示文摘 | Tkac I Rao R Georgieff M K | 2003 | Magn Reson Med2003，50，1： | 1 |
| 18 | 显示文摘 | Parashar S Raju A R Rao C N R | 2003 | J Phys D: Appl Phys2003，36，17： | 1 |
| 19 | The adequacy of laboratory moniloring in patients treated with spironolactone for congestive heart failure显示文摘 | Shah KB Rao K Sawyer R | 2005 | J Am Coll Cardiol2005，46，5： | 1 |
| 20 | Differential response of wheat genotypes to long term salinity stress in relation to oxidative stress, antioxidant activity and osmolyte concentration显示文摘 | Sairam R K Rao K V Srivastava G C | 2002 | Plant Science2002，163，： | 1 |
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