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| 1 | Simultaneous determination of telmisartan and amlodipine in human plasma by LC-MS/MS and its application in a human pharmacokinetic study显示文摘A rapid and sensitive liquid chromatography-tandem mass spectrometric(LC-MS/MS) assay method has been developed and fully validated for the simultaneous quantification of telmisartan and amlodipine in human plasma.Carbamazepine was used as an internal standard.Analytes and the internal standard were extracted from human plasma by solid-phase extraction technique using Waters Oasis HLB 1 cm 3(30 mg) extraction cartridge.The reconstituted samples were chromatographed on a Hypurity advance C 18 column(50 mm×4.6 mm,5 μm) using a mixture of acetonitrile-5 mM ammonium acetate buffer(pH-4.0)(50:50,v/v) as the mobile phase at a flow rate of 0.8 mL/min.The calibration curve obtained was linear(r≥0.99) over the concentration range of 2.01-400.06 ng/mL for telmisartan and 0.05-10.01 ng/mL for amlodipine.Method validation was performed as per FDA guidelines and the results met the acceptance criteria.A run time of 2.5 min for each sample made it possible to analyze more than 400 human plasma samples per day.The proposed method was found to be applicable to clinical studies. | Vasu Babu Ravi Jaswanth Kumar Inamadugu Nageswara Rao Pilli Vudagandla Sreenivasulu Venkateswarlu Ponneri | 2012 | Journal of Pharmaceutical Analysis2012，2，5： | 8 |
| 2 | One Pot Reduction of Imines Generated in-situ from Aldehydes and Amines by the NaBH4-InCl3 System显示文摘钠 borohydride 的联合和在 acetonitrile 还原剂 imines 的氯化物从醛和胺在原处形成了到第二等的相应 functionalised 和第三级的胺在的铟(III ) 的催化数量对好收益中等。引人注目是高度, chemoselective 反应面对象卤素那样的另外的功能的组被完成,碳碳两倍契约和氢氧根组。 | RAVI, Varala RAMU, Enugala VIJAY KUMAR, Ponnamaneni SRINIVAS RAO, Adapa | 2006 | Chinese Journal of Chemistry2006，24，6： | 4 |
| 3 | Evolving role of biomaterials in diagnostic and therapeutic radiation oncology显示文摘Radiation therapy to treat cancer has evolved significantly since the discovery of x-rays.Yet,radiation therapy still has room for improvement in reducing side effects and improving control of cancer.Safer and more effective delivery of radiation has led us to novel techniques and use of biomaterials.Biomaterials in combination with radiation and chemotherapy have started to appear in pre-clinical explorations and clinical applications,with many more on the horizon.Biomaterials have revolutionized the field of diagnostic imaging,and now are being cultivated into the field of theranostics,combination therapy,and tissue protection.This review summarizes recent development of biomaterials in radiation therapy in several application areas. | Siyu Shi Ravi Vissapragada Joseph Abi Jaoude Caroline Huang Anmol Mittal Elisa Liu Jim Zhong Vivek Kumar | 2020 | Bioactive Materials2020，5，2： | 4 |
| 4 | Evaluation of Traditional Indian Antidiabetic Medicinal Plants for Human Pancreatic Amylase Inhibitory Effect In Vitro显示文摘 | Sudha Ponnusamy Remya Ravindran Smita Zinjarde Shobha Bhargava Ameeta Ravi Kumar | 2010 | Evidence-Based Complementary and Alternative Medicine2010，，： | 3 |
| 5 | Predicting the presence of adenomatous polyps during colonoscopy with National Cancer Institute Colorectal Cancer Risk-Assessment Tool显示文摘AIM To evaluate the National Cancer Institute(NCI)Colorectal Cancer(CRC)Risk Assessment Tool as a predictor for the presence of adenomatous polyps(AP) found during screening or surveillance colonoscopy.METHODS This is a retrospective single center observational study.We collected data of adenomatous polyps in each colonoscopy and then evaluated the lifetime CRC risk.We calculated the AP prevalence across risk score quintiles,odds ratios of the prevalence of AP across risk score quintiles,area under curves(AUCs)and Youden’s indexes to assess the optimal risk score cut off value for AP prevalence status.RESULTS The prevalence of AP gradually increased throughout the five risk score quintiles:i.e.,27.63%in the first and 51.35%in the fifth quintile.The odd ratios of AP prevalence in the fifth quintile compared to the first and second quintile were 2.76[confidence interval(CI):1.71-4.47]and 2.09(CI:1.32-3.30).The AUC for all patients was 0.62(CI:0.58-0.66).Youden’s Index indicated the optimal risk score cutoff value discriminating AP prevalence status was 3.60.CONCLUSION Patients with the higher NCI risk score have higher risk of AP and subsequent CRC;therefore,measures to increase the effectiveness of CRC detection in these patients include longer withdrawal time,early surveillance colonoscopy,and choosing flexible colonoscopy over other CRC screening modalities. | Hassan Tariq Muhammad Umar Kamal Harish Patel Ravi Patel Muhammad Ameen Shehi Elona Maram Khalifa Sara Azam Aiyi Zhang Kishore Kumar Ahmed Baiomi Danial Shaikh Jasbir Makker | 2018 | World Journal of Gastroenterology2018，24，34： | 3 |
| 6 | A rapid and sensitive liquid chromatography-tandem mass spectrometric assay for duloxetine in human plasma:Its pharmacokinetic application显示文摘This paper describes a simple, rapid and sensitive liquid chromatography-tandem mass spectrometry assay for the determination of duloxetine in human plasma. A duloxetine stable labeled isotope (duloxetine d 5 ) was used as an internal standard. Analyte and the internal standard were extracted from 100 mL of human plasma via solid phase extraction technique using Oasis HLB cartridges. The chromatographic separation was achieved on a C 18 column by using a mixture of acetonitrile-5 mM ammonium acetate buffer (83:17, v/v) as the mobile phase at a flow rate of 0.9 mL/min. The calibration curve obtained was linear (r 2 Z0.99) over the concentration range of 0.05-101 ng/mL. Multiple-reaction monitoring mode (MRM) was used for quantification of ion transitions at m/z 298.3/154.1 and 303.3/159.1 for the drug and the internal standard, respectively. Method validation was performed as per FDA guidelines and the results met the acceptance criteria. A run time of 2.5 min for each sample made it possible to analyze more than 300 plasma samples per day. The proposed method was found to be applicable to clinical studies. | Ramakrishna Gajula Rambabu Maddela Vasu Babu Ravi Jaswanth Kumar Inamadugu Nageswara Rao Pilli | 2013 | Journal of Pharmaceutical Analysis2013，3，1： | 3 |
| 7 | A review of chitin and chitosan applications显示文摘 | Majeti N.V Ravi Kumar | 2000 | Reactive and Functional Polymers2000，，1： | 3 |
| 8 | Implications of the presence of an aberrant right hepatic artery in patients undergoing pancreaticoduodenectomy显示文摘AIM:To analyze the differences in outcomes and the clinical impact following pancreatoduodenectomy(PD)in patients with and without aberrant right hepatic artery(aRHA).METHODS:All patients undergoing PD between January 2008 and December 2012 were divided into two groups,one with aRHA and the other without.These groups were compared to identify differences in the intraoperative variables,the oncological clearance and the postoperative morbidity,mortality and hospital stay.RESULTS:A total of 225 patients underwent PD,of which 43(19.1%)patients were found to have eitheraccessory or replaced right hepatic arteries(aRHA group).The aRHA was preserved in 79%of the patients.There was no significant difference in the intraoperative blood loss but operative time was prolonged,reflecting the complexity of the procedure[420±44(240-540)min vs 480±45(300-600)min,P<0.05)].There were no differences in the incidence of postoperative complications(pancreatic leak,pancreatic fistula,delayed gastric emptying and mortality)and hospital stay.Oncological clearance in the form of positive resection margins[13(7.1%)vs 3(6.9%)]and lymph node yield were also similar in the two groups.CONCLUSION:An aRHA is found in approximately one fifth of patients undergoing PD.Preservation is technically possible in most patients and can increase the operative complexity but does not negatively affect the safety or oncological outcomes of the procedure. | Ashwin Rammohan Ravichandran Palaniappan Anbalagan Pitchaimuthu Kamalakannan Rajendran Senthil Kumar Perumal Kesavan Balaraman Ravi Ramasamy Jeswanth Sathyanesan Manoharan Govindan | 2014 | World Journal of Gastrointestinal Surgery2014，6，1： | 3 |
| 9 | 汽车行业加速产品创新流程的技术——CAE技术显示文摘 | Ravi Kumar 苏喜兰 | 2002 | CAD/CAM与制造业信息化2002，，7： | 2 |
| 10 | Formability of galvanized interstitial-free steel sheets显示文摘 | Amit Kumar Gupta D. Ravi Kumar | 2005 | Journal of Materials Processing Tech2005，，2： | 2 |
| 11 | Effect of angiotensin converting enzyme gene I/D polymorphism in South Indian children with nephrotic syndrome显示文摘Nephrotic syndrome is one of the most common childhood kidney diseases. It is mostly found in the age group of 2 to 8 years. Around 10%-15% of nephrotic syndrome cases are non-responders of steroid treatment(SRNS).Angiotensin converting enzyme(ACE)(I/D) gene association studies are important for detecting kidney disease and herein we assessed the association of ACE(I/D) polymorphism with nephrotic syndrome in South Indian children. We recruited 260 nephrotic syndrome(162 boys and 98 girls) and 218(140 boys and 78 girls) control subjects. ACE I/D polymorphism was analyzed by PCR using genotype allele specific primers. In ACE(I/D), we did not find significant association for the ungrouped data of nephrotic syndrome children and the control subjects. Kidney biopsies were done in 86 nephrotic syndrome cases(minimal change disease, n = 51;focal segmental glomerulosclerosis, n = 27;diffuse mesangial proliferation, n = 8). We segregated them into the minimal change disease/focal segmental glomerulosclerosis groups and observed that the ACE’D’ allele was identified with borderline significance in cases of focal segmental glomerulosclerosis and the ’Ⅰ’ allele was assessed as having very weak association in cases of minimal change disease. ’Ⅱ’ genotype was weakly associated with minimal change disease. Gender specific analysis revealed weak association of’ID’ genotype with female nephrotic syndrome in females. Dominant expression of DD genotype was observed in males with nephrotic syndrome. Our finding indicated that ACE(I/D) has moderate association with focal segmental glomerulosclerosis. However, due to the limited number of biopsy proven focal segmental glomerulosclerosis subjects enrolled, further studies are required to confirm these results. | Aravind Selvin Kumar Ramanathan Balakrishnan Karuppiah Murali Vijayan Kamaraj Raju Dhivakar Mani Rathika Chinniah Manikandan Thirunavukkarasu Padma Malini Ravi Jeyaram Illiayaraja Krishnan Prabha Senguttuvan | 2019 | The Journal of Biomedical Research2019，33，3： | 2 |
| 12 | Spontaneous atraumatic dislocation of sternoclavicu- lar joint in Reiter's syndrome显示文摘 | Vijay Kumar Digge Sanjay Meena Shah Alam Khan Ravi Mittal | 2012 | Chinese Journal of Traumatology2012，15，4： | 2 |
| 13 | Prevalence of advanced liver fibrosis and steatosis in type-2 diabetics with normal transaminases:A prospective cohort study显示文摘BACKGROUND Nonalcoholic fatty liver disease(NAFLD)and type-2 diabetes mellitus(T2DM)have an intricate bidirectional relationship.Individuals with T2DM,not only have a higher prevalence of non-alcoholic steatosis,but also carry a higher risk of progression to nonalcoholic steatohepatitis.Experts still differ in their recommendations of screening for NAFLD among patients with T2DM.AIM To study the prevalence of NAFLD and advanced fibrosis among our patient population with T2DM.METHODS During the study period(November 2018 to January 2020),59 adult patients with T2DM and 26 non-diabetic control group individuals were recruited prospectively.Patients with known significant liver disease and alcohol use were excluded.Demographic data and lab parameters were recorded.Liver elastography was performed in all patients.RESULTS In the study group comprised of patients with T2DM and normal alanine aminotransferase levels(mean 17.8±7 U/L),81%had hepatic steatosis as diagnosed by elastography.Advanced hepatic fibrosis(stage F3 or F4)was present in 12%of patients with T2DM as compared to none in the control group.Patients with T2DM also had higher number of individuals with grade 3 steatosis[45.8%vs 11.5%,(P<0.00001)and metabolic syndrome(84.7%vs 11.5%,P<0.00001)].CONCLUSION A significant number of patients with T2DM,despite having normal transaminase levels,have NAFLD,grade 3 steatosis and advanced hepatic fibrosis as measured by liver elastography. | Jasbir Makker Hassan Tariq Kishore Kumar Madhavi Ravi Danial Haris Shaikh Vivien Leung Umar Hayat Muhammad T Hassan Harish Patel Suresh Nayudu Sridhar Chilimuri | 2021 | World Journal of Gastroenterology2021，27，6： | 2 |
| 14 | Draft genome sequence of a less-known wild Vigna: Beach pea(V. marina cv. ANBp-14-03)显示文摘Beach pea or beach cowpea(Vigna marina(Burm.)Merr.)belongs to the family Fabaceae.It is a close relative of cultivated Vigna species such as adzuki bean(V.angularis),cowpea(V.unguiculata),mung bean(V.radiata),and blackgram(V.mungo),and is distributed throughout the tropics.With its ability to tolerate salt stress,beach pea has great potential to contribute salt-tolerance genes for developing salt-tolerant cultivars in cultivated Vigna species.However,it is still underutilized in Vigna breeding programs.A draft genome sequence of beach pea was generated using a high-throughput next-generation sequencing platform,yielding 23.7 Gb of sequence from 79,929,868 filtered reads.A de novo genome assembly containing 68,731 scaffolds gave an N50 length of 10,272 bp and the assembled sequences totaled 365.6 Mb.A total of 35,448 SSRs,including 3574 compound SSRs,were identified and primer pairs for most of these SSRs were designed.Genome analysis identified 50,670 genes with mean coding sequence length 1042 bp.Phylogenetic analysis revealed highest sequence similarity with V.angularis,followed by V.radiata.Comparison with the V.angularis genome revealed 16,699 SNPs and 2253 InDels and comparison with the V.radiata genome revealed 17,538 SNPs and 2300 InDels.To our knowledge this is the first draft genome sequence of beach pea derived from an accession(ANBp-14-03)adapted locally in the Andaman and Nicobar Islands of India.The draft genome sequence may facilitate the genetic enhancement in cultivated Vigna species. | Awnindra Kumar Singh A.Velmurugan Debjyoti Sen Gupta Jitendra Kumar Ravi Kesari Aravind Konda Narendra Pratap Singh Sibnarayan Dam Roy Utpal Biswas R.Rahul Kumar Sanjay Singh | 2019 | The Crop Journal2019，7，5： | 2 |
| 15 | Processing and dry sliding wear performance of spray deposited hyper-eutectic aluminum–silicon alloys显示文摘 | Nadimpalli Raghukiran Ravi Kumar | 2013 | Journal of Materials Processing Tech2013，，3： | 2 |
| 16 | A review of chitin and chitosan applications显示文摘 | Majeti N.V Ravi Kumar | 2000 | Reactive and Functional Polymers2000，，1： | 2 |
| 17 | Formability analysis of extra-deep drawing steel显示文摘 | D Ravi Kumar | 2002 | Journal of Materials Processing Tech2002，，： | 2 |
| 18 | Nano and microparticles as controlled drug delivery devices 显示文摘 | RAVI KUMAR M N | 2000 | J Pharm Pharm Sci2000，3，2： | 1 |
| 19 | Formability analysis of extra - deep drawing steel显示文摘 | Ravi Kumar D | 2002 | Journal of Materials Processing Technology2002，130，： | 1 |
| 20 | Novel Pyridinium compound from marine actinomycete, Amycolatopsis alba var. nov. DVR D4 showing antimicrobial and cytotoxic activities in vitro显示文摘 | Venkata Ratna Ravi Kumar Dasari Murali Krishna Kumar Muthyala Murali Yugandhar Nikku Sri Rami Reddy Donthireddy | 2012 | Microbiological Research2012，，6： | 1 |
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