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Bound DJ, Bettadaiah BK, Srinivas P. ZnBr2-Catalyzed and Microwave-Assisted Synthesis of 2,3-Unsaturated Glucosides of Hindered Phenols and Alcohols. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.909490] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Manjunath CN, Srinivas P, Ravindranath KS, Dhanalakshmi C. Incidence and patterns of valvular heart disease in a tertiary care high-volume cardiac center: a single center experience. Indian Heart J 2014; 66:320-6. [PMID: 24973838 DOI: 10.1016/j.ihj.2014.03.010] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 03/07/2014] [Accepted: 03/23/2014] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Diseases of the heart valves constitute a major cause of cardiovascular morbidity and mortality worldwide with rheumatic heart disease (RHD) being the dominant form of valvular heart disease (VHD) in developing nations. The current study was undertaken at a tertiary care cardiac center with the objective of establishing the incidence and patterns of VHD by Echocardiography (Echo). METHODS Among the 136,098 first-time Echocardiograms performed between January 2010 and December 2012, an exclusion criterion of trivial and functional regurgitant lesions yielded a total of 13,289 cases of organic valvular heart disease as the study cohort. RESULTS In RHD, the order of involvement of valves was mitral (60.2%), followed by aortic, tricuspid and pulmonary valves. Mitral stenosis, predominantly seen in females, was almost exclusively of rheumatic etiology (97.4%). The predominant form of isolated MR was rheumatic (41.1%) followed closely by myxomatous or mitral valve prolapse (40.8%). Isolated AS, more common in males, was the third most common valve lesion seen in 7.3% of cases. Degenerative calcification was the commonest cause of isolated AS (65.0%) followed by bicuspid aortic valve (BAV) (33.9%) and RHD (1.1%). Multiple valves were involved in more than a third of all cases (36.8%). The order of involvement was MS + MR > MS + AR > MR + AR > AS + AR > MR + AS > MS + AS. Overall, 9.7% of cases had organic tricuspid valve disease. CONCLUSION RHD contributed most to the burden of VHD in the present study with calcific degeneration, myxomatous disease and BAV being the other major forms of VHD. Multiple valves were affected in more than a third of all cases.
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Sirisha NR, Srinivas P, Srinivas R, Suresh S, Devaki T, Simha BV. Oral health related quality of life among special community adult population with low socioeconomic status residing in Guntur city, Andhra Pradesh: A cross-sectional study. JOURNAL OF INDIAN ASSOCIATION OF PUBLIC HEALTH DENTISTRY 2014. [DOI: 10.4103/2319-5932.147672] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Santosh Kumar SC, Srinivas P, Negi PS, Bettadaiah BK. Antibacterial and antimutagenic activities of novel zerumbone analogues. Food Chem 2013; 141:1097-103. [PMID: 23790891 DOI: 10.1016/j.foodchem.2013.04.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 04/03/2013] [Accepted: 04/06/2013] [Indexed: 11/27/2022]
Abstract
Zerumbone, the key constituent of Zingiber zerumbet Smith, is a very important bioactive phytochemical. Two new compounds viz. azazerumbone 1 and azazerumbone 2 were synthesised by ZnCl2-catalysed Beckmann rearrangement of the zerumbone oxime. The structure elucidation of these analogues of zerumbone was carried out by 1D ((1)H NMR and (13)C NMR) and 2D-NMR (COSY, HSQC and NOESY) spectral analysis. Studies on the antibacterial activity established that azazerumbone 2 had better activity than zerumbone. Among the tested bacteria, Bacillus cereus was the most sensitive and Yersinia enterocolitica was found to be the most resistant. These compounds exhibited strong protection against sodium azide induced mutagenicity of Salmonella typhimurium strains TA 98 and TA 1531. Azazerumbone 2 showed better antibacterial and antimutagenic activity than azazerumbone 1. The antibacterial and antimutagenic activities exhibited by zerumbone and its analogues demonstrate their potential for use as nutraceuticals and in food preservation.
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Krishnaiah G, Rajanna KC, Reddy KR, Kumar MS, Srinivas P, Rao YR. Cesium carbonate as efficient catalyst for chemoselective transesterification of β-ketoesters under conventional and unconventional conditions. RESEARCH ON CHEMICAL INTERMEDIATES 2013. [DOI: 10.1007/s11164-013-1383-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nagendra chari KL, Manasa D, Srinivas P, Sowbhagya HB. Enzyme-assisted extraction of bioactive compounds from ginger (Zingiber officinale Roscoe). Food Chem 2013; 139:509-14. [PMID: 23561138 DOI: 10.1016/j.foodchem.2013.01.099] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2012] [Revised: 12/05/2012] [Accepted: 01/25/2013] [Indexed: 11/24/2022]
Abstract
Ginger (Zingiber officinale R.) is a popular spice used in various foods and beverages. 6-Gingerol is the major bioactive constituent responsible for the antiinflammatory, antitumour and antioxidant activities of ginger. The effect of application of α-amylase, viscozyme, cellulase, protease and pectinase enzymes to ginger on the oleoresin yield and 6-gingerol content has been investigated. Pre-treatment of ginger with α-amylase or viscozyme followed by extraction with acetone afforded higher yield of oleoresin (20%±0.5) and gingerol (12.2%±0.4) compared to control (15%±0.6 oleoresin, 6.4%±0.4 gingerol). Extraction of ginger pre-treated with enzymes followed by extraction with ethanol provided higher yield of gingerol (6.2-6.3%) than the control (5.5%) with comparable yields of the oleoresin (31-32%). Also, ethanol extract of cellulase pre-treated ginger had the maximum polyphenol content (37.5 mg/g). Apart from 6-gingerol, 6-paradol along with 6- and 8-methyl shogaols were the other important bio-active constituents in the oleoresin from cellulase-treated ginger.
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Lakshmi Kantam M, Parsharamulu T, Likhar PR, Srinivas P. Anionic amido/carbocyclic carbene ligated palladium (II) complex for room temperature Suzuki reaction. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.01.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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S. BS, Palaniappan S, Srinivas P. Nano fibre polyaniline containing long chain and small molecule dopants and carbon composites for supercapacitor. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.02.040] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kantam ML, Annapurna M, Likhar PR, Srinivas P, Mirzadeh N, Bhargava SK. Palladium complexes containing multidentate phenoxy–pyridyl–amidate ligands: Highly efficient catalyst for Heck coupling of deactivated aryl halides. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2012.08.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Rao VN, Suresh S, Viswanath V, Srinivas P, Devaki T, Ahmed Z. Assessment of knowledge about management of tooth avulsion among 7-14 years old school children in Nalgonda, Andhra pradesh. JOURNAL OF INDIAN ASSOCIATION OF PUBLIC HEALTH DENTISTRY 2013. [DOI: 10.4103/2319-5932.167431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
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Faisal M, Chelluri PE, Singaraju S, Gali JH, Ahmed S, Srinivas P. Environmental and occupational respiratory diseases – 1063. Spirometric abnormalities in non smoking bus drivers of hyderabad. World Allergy Organ J 2013. [PMCID: PMC3643232 DOI: 10.1186/1939-4551-6-s1-p61] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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Thota G, Srinivas P. Ag(I) Catalyzed Grafting of Acrylonitrile onto Gum Arabic by Ce(IV) in Medium: A Kinetic Study. ACTA ACUST UNITED AC 2012. [DOI: 10.5402/2012/942398] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Grafting of Acrylonitrile (AN) onto water-soluble polymer Gum arabic (GA) was carried out using ceric ammonium sulfate [Ce(IV)] as initiator in the presence and absence of Ag(I) in H2SO4 medium at 313 K. The rate of oxidation (), rate of grafting (), and grafting efficiency (GE) were determined for catalyzed and uncatalyzed grafting and suitable mechanism was proposed to explain the observed results. No homopolymerization in the absence of GA indicates that the polymer obtained is purely a graft copolymer. A probable mechanism involving the formation of Ag(I)-GA adduct followed by its oxidation with Ce(IV) to give Ag(II)-GA adduct, and its decomposition to give initiating radicals is proposed to explain the observed results. The graft polymer was characterized using Fourier-transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC), X-ray diffraction, and scanning electron microscopy (SEM) considering GA as reference.
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Naveen Kumar M, Srinivas P, Ramadevi S, Raghavendra Prasad S, Ajayprakash P, Sudhakar M. Hypohidrotic Ectodermal Dysplasia with Anodontia: A Rare Case-Rehabilitation by Prosthetic Management. JOURNAL OF INDIAN ACADEMY OF ORAL MEDICINE AND RADIOLOGY 2012. [DOI: 10.5005/jp-journals-10011-1325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Vijendra Kumar N, Srinivas P, Bettadaiah B. New scalable and eco-friendly synthesis of gingerols. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.03.092] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Babu KS, Rao MR, Goverdhan G, Srinivas P, Reddy PP, Venkateswarlu G, Anand RV. Synthesis of Valganciclovir Hydrochloride Congeners. SYNTHETIC COMMUN 2012. [DOI: 10.1080/00397911.2011.651249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Costello RB, Lentino C, Saldanha L, Srinivas P, Sempos C. Review of select dietary supplement interventions for endothelial dysfunction. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.379.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jagadish R, Divyashree K, Viswanath P, Srinivas P, Raj B. Preparation of N-vanillyl chitosan and 4-hydroxybenzyl chitosan and their physico-mechanical, optical, barrier, and antimicrobial properties. Carbohydr Polym 2012; 87:110-116. [DOI: 10.1016/j.carbpol.2011.07.024] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Revised: 07/14/2011] [Accepted: 07/16/2011] [Indexed: 10/18/2022]
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Devaki T, Rao VN, Suresh S, Srinivas P, Viswanath V. Evaluation of the efficacy of two desensitising products among 20 - 40 year old people- A parallel designed randomized control Trial. JOURNAL OF INDIAN ASSOCIATION OF PUBLIC HEALTH DENTISTRY 2012. [DOI: 10.4103/2319-5932.167710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
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Sasmal PK, Talwar R, Swetha J, Balasubrahmanyam D, Venkatesham B, Rawoof KA, Neelima Devi B, Jadhav VP, Khan SK, Mohan P, Srinivasa Reddy D, Nyavanandi VK, Nanduri S, Kyasa SK, Kannan M, Srinivas P, Nadipalli P, Chaudhury H, Sebastian VJ. Structure-activity relationship studies of novel pyrazole and imidazole carboxamides as cannabinoid-1 (CB1) antagonists. Bioorg Med Chem Lett 2011; 21:4913-8. [PMID: 21741835 DOI: 10.1016/j.bmcl.2011.06.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Revised: 05/27/2011] [Accepted: 06/06/2011] [Indexed: 11/28/2022]
Abstract
The synthesis and biological evaluation of novel pyrazole and imidazole carboxamides as CB1 antagonists are described. As a part of eastern amide SAR, various chemically diverse motifs were introduced on rimonabant template. The central pyrazole core was also replaced with its conformationally constrained motif and imidazole moieties. In general, a range of modifications were well tolerated. Several molecules with low- and sub-nanomolar potencies were identified as potent CB1 receptor antagonists. The in vivo proof of principle for weight loss is demonstrated with a lead compound in DIO mice model.
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Sneharani AH, Singh SA, Srinivas P, Rao AGA. Inhibition of lipoxygenase-1 by tetrahydrocurcumin. Eur Food Res Technol 2011. [DOI: 10.1007/s00217-011-1541-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Madhava Naidu M, Shyamala B, Pura Naik J, Sulochanamma G, Srinivas P. Chemical composition and antioxidant activity of the husk and endosperm of fenugreek seeds. Lebensm Wiss Technol 2011. [DOI: 10.1016/j.lwt.2010.08.013] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Boja ES, Jortani SA, Ritchie J, Hoofnagle AN, Težak Ž, Mansfield E, Keller P, Rivers RC, Rahbar A, Anderson NL, Srinivas P, Rodriguez H. The journey to regulation of protein-based multiplex quantitative assays. Clin Chem 2011; 57:560-7. [PMID: 21300740 DOI: 10.1373/clinchem.2010.156034] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Clinical proteomics presents great promise in biology and medicine because of its potential for improving our understanding of diseases at the molecular level and for detecting disease-related biomarkers for diagnosis, prognosis, and prediction of therapeutic responses. To realize its full potential to improve clinical outcome for patients, proteomic studies have to be well designed, from biosample cohorts to data and statistical analyses. One key component in the biomarker development pipeline is the understanding of the regulatory science that evaluates diagnostic assay performance through rigorous analytical and clinical review criteria. CONTENT The National Cancer Institute's Clinical Proteomic Technologies for Cancer (CPTC) initiative has proposed an intermediate preclinical "verification" step to close the gap between protein-based biomarker discovery and clinical qualification. In collaboration with the US Food and Drug Administration (FDA), the CPTC network investigators recently published 2 mock submission review documents, first-of-their-kind educational materials that may help the scientific community interested in developing products for the clinic in understanding the likely analytical evaluation requirements for multiplex protein technology-based diagnostic tests. CONCLUSIONS Building on this momentum, the CPTC continues with this report its collaboration with the FDA, as well as its interactions with the AACC and the Centers for Medicare and Medicaid Services, to further the understanding of regulatory requirements for approving multiplex proteomic platform-based tests and analytically validating multiple analytes.
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Sasmal PK, Reddy DS, Talwar R, Venkatesham B, Balasubrahmanyam D, Kannan M, Srinivas P, Kyasa SK, Devi BN, Jadhav VP, Khan SK, Mohan P, Chaudhury H, Bhuniya D, Iqbal J, Chakrabarti R. Novel pyrazole-3-carboxamide derivatives as cannabinoid-1 (CB1) antagonists: journey from non-polar to polar amides. Bioorg Med Chem Lett 2011; 21:562-8. [PMID: 21075633 DOI: 10.1016/j.bmcl.2010.10.055] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Revised: 10/12/2010] [Accepted: 10/13/2010] [Indexed: 02/08/2023]
Abstract
The synthesis and biological evaluation of novel pyrazole-3-carboxamide derivatives as CB1 antagonists are described. As a part of eastern amide SAR, various chemically diverse motifs were introduced. In general, a range of modifications were well tolerated. Several molecules with high polar surface area were also identified as potent CB1 receptor antagonists. The in vivo proof of principle for weight loss is exemplified with a lead compound from this series.
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Srinivas P, Sudhakar V. Barriers to Dental Care Utilization in India. JOURNAL OF INDIAN ASSOCIATION OF PUBLIC HEALTH DENTISTRY 2011. [DOI: 10.4103/2319-5932.185423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
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