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Pamecha V, Patil NS, Parthasarathy K, Sinha PK, Mohapatra N, Rastogi A, Rudrakumar K, Mukund A, Chaudhary A, Kanal U. Expanding donor pool for live donor liver transplantation: utilization of donors with non-alcoholic steatohepatitis after optimization. Langenbecks Arch Surg 2022; 407:1575-1584. [PMID: 35243535 DOI: 10.1007/s00423-022-02444-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 01/14/2022] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Potential live liver donors with non-alcoholic steatohepatitis (NASH) are rejected upfront for donation in live donor liver transplantation (LDLT). Herein, we share our experience of the feasibility of live liver donation in donors with NASH after successful donor optimization. MATERIALS AND METHODS Prospectively collected data of 410 consecutive donor hepatectomies from June 2011 to January 2018 were analyzed. RESULTS During the study period, NASH was diagnosed histopathologically in 17 donors. Four donors were rejected in view of grade 2 fibrosis on histology. Out of remaining 13 donors, six became eligible for donation following lifestyle changes, dietary modifications, and target weight reduction of ≥5%. Reversal of NASH was confirmed on repeat liver biopsy in all the 6 donors. Five out of 6 underwent right lobe (without MHV) donor hepatectomies, while one had left lobe donation. These donors had significantly higher peak bilirubin levels in the immediate post-operative period as compared to other non-NASH donors (4.00 ± 0.32 vs. 2.57 ± 1.77 mg/dL, p = 0.043). In addition, post-hepatectomy normalization of hyperbilirubinemia, if any, was slower in donors with NASH (7 ± 1.3 vs. 5 ± 1.7 days, p = 0.016). However, none of these donors had post-hepatectomy liver failure. All these donors were discharged after an average hospital stay of 8 ± 1.7 days. Their respective recipients had uneventful post-operative courses without complications. Both the recipients and donors are having satisfactory liver functions after 46.7 ± 10.2 months of follow-up. CONCLUSION Scrupulous selection of live liver donors with NASH can open a door for expanding the organ pool in LDLT after a successful donor optimization program.
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Affiliation(s)
- Viniyendra Pamecha
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver & Biliary Sciences, D-1, Acharya Shree Tulsi Marg, Vasant Kunj, New Delhi, 110070, India.
| | - Nilesh Sadashiv Patil
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver & Biliary Sciences, D-1, Acharya Shree Tulsi Marg, Vasant Kunj, New Delhi, 110070, India
| | - Kumaraswamy Parthasarathy
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver & Biliary Sciences, D-1, Acharya Shree Tulsi Marg, Vasant Kunj, New Delhi, 110070, India
| | - Piyush Kumar Sinha
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver & Biliary Sciences, D-1, Acharya Shree Tulsi Marg, Vasant Kunj, New Delhi, 110070, India
| | - Nihar Mohapatra
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver & Biliary Sciences, D-1, Acharya Shree Tulsi Marg, Vasant Kunj, New Delhi, 110070, India
| | - Archana Rastogi
- Department of Pathology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Karthika Rudrakumar
- Department of Pathology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Amar Mukund
- Department of Interventional Radiology, Institute of Liver & Biliary Sciences, New Delhi, India
| | - Ashok Chaudhary
- Department of Hepatology, Institute of Liver and Biliary Sciences (ILBS), New Delhi, India
| | - Uma Kanal
- Department of Nutrition, Institute of Liver and Biliary Sciences (ILBS), New Delhi, India
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Pamecha V, Vagadiya A, Sinha PK, Sandhyav R, Parthasarathy K, Sasturkar S, Mohapatra N, Choudhury A, Maiwal R, Khanna R, Alam S, Pandey CK, Sarin SK. Living Donor Liver Transplantation for Acute Liver Failure: Donor Safety and Recipient Outcome. Liver Transpl 2019; 25:1408-1421. [PMID: 30861306 DOI: 10.1002/lt.25445] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 03/01/2019] [Indexed: 12/12/2022]
Abstract
In countries where deceased organ donation is sparse, emergency living donor liver transplantation (LDLT) is the only lifesaving option in select patients with acute liver failure (ALF). The aim of the current study is living liver donor safety and recipient outcomes following LDLT for ALF. A total of 410 patients underwent LDLT between March 2011 and February 2018, out of which 61 (14.9%) were for ALF. All satisfied the King's College criteria (KCC). Median admission to transplant time was 48 hours (range, 24-80.5 hours), and median living donor evaluation time was 18 hours (14-20 hours). Median Model for End-Stage Liver Disease score was 37 (32-40) with more than two-thirds having grade 3 or 4 encephalopathy and 70% being on mechanical ventilation. The most common etiology was viral (37%). Median jaundice-to-encephalopathy time was 15 (9-29) days. Preoperative culture was positive in 47.5%. There was no difference in the complication rate among emergency and elective living liver donors (13.1% versus 21.2%; P = 0.19). There was no donor mortality. For patients who met the KCC but did not undergo LT, survival was 22.8% (29/127). The 5-year post-LT actuarial survival was 65.57% with a median follow-up of 35 months. On multivariate analysis, postoperative worsening of cerebral edema (CE; hazard ratio [HR], 2.53; 95% confidence interval [CI], 1.01-6.31), systemic inflammatory response syndrome (SIRS; HR, 16.7; 95% CI, 2.05-136.7), preoperative culture positivity (HR, 6.54; 95% CI, 2.24-19.07), and a longer anhepatic phase duration (HR, 1.01; 95% CI, 1.00-1.02) predicted poor outcomes. In conclusion, emergency LDLT is lifesaving in selected patients with ALF. Outcomes of emergency living liver donation were comparable to that of elective donors. Postoperative worsening of CE, preoperative SIRS, and sepsis predicted outcome after LDLT for ALF.
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Affiliation(s)
- Viniyendra Pamecha
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Ankur Vagadiya
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Piyush Kumar Sinha
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Rommel Sandhyav
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Kumaraswamy Parthasarathy
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Shridhar Sasturkar
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Nihar Mohapatra
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Ashok Choudhury
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Rakhi Maiwal
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Rajeev Khanna
- Department of Pediatric Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Seema Alam
- Department of Pediatric Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Chandra Kant Pandey
- Department of Anaesthesiology and Critical Care, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Shiv Kumar Sarin
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
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Shanmuganathan T, Prince AAM, Dhatchanamoorthy N, Parthasarathy K, Venugopal M. Synthesis, anti-inflammatory activity of picen-13-ylmethylene derivatives. ARKIVOC 2017. [DOI: 10.24820/ark.5550190.p010.100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Shanmuganathan T, Venugopal M, Parthasarathy K, Dhatchanamoorthy N, Arun Y, Prince AAM. Synthesis of novel bis-allyloxy and hydroxypropoxy derivatives of 4, 5-diaryl thiophene-2-carboxylic acid and their biological evaluation. J CHEM SCI 2017. [DOI: 10.1007/s12039-017-1274-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Parthasarathy K, Ponpandian T, Praveen C. Gold-catalyzed addition reaction between creatinine and isatin: A sustainable and green chemistry approach for the diastereoselective synthesis of 3-substituted-3-hydroxyisatins. Chinese Journal of Catalysis 2017. [DOI: 10.1016/s1872-2067(17)62812-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Parthasarathy K, Praveen C, Saranraj K, Balachandran C, Kumar PS. Synthesis, antimicrobial and cytotoxic evaluation of spirooxindole[pyrano-bis-2H-l-benzopyrans]. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1645-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Parthasarathy K, Sivaraj A, Sundar R. Identification of new efflux pump proteins from multidrug resistant Mycobacterium tuberculosis and screening for peptide based efflux pump inhibitors. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Gay IC, Tran DT, Weltman R, Parthasarathy K, Diaz‐Rodriguez J, Walji M, Fu Y, Friedman L. Role of supportive maintenance therapy on implant survival: a university‐based 17 years retrospective analysis. Int J Dent Hyg 2015; 14:267-271. [DOI: 10.1111/idh.12188] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2015] [Indexed: 11/27/2022]
Affiliation(s)
- IC Gay
- Department of Periodontics East Carolina University GreenvilleNCUSA
| | - DT Tran
- Department of Diagnostics and Biomedical Sciences School of Dentistry University of Texas Houston TX USA
| | - R Weltman
- Department of Periodontics and Dental Hygiene School of Dentistry University of Texas Houston TX USA
| | - K Parthasarathy
- Department of Periodontics and Dental Hygiene School of Dentistry University of Texas Houston TX USA
| | - J Diaz‐Rodriguez
- Department of Periodontics and Dental Hygiene School of Dentistry University of Texas Houston TX USA
| | - M Walji
- Department of Diagnostics and Biomedical Sciences School of Dentistry University of Texas Houston TX USA
| | - Y Fu
- Human Genetics Center Division of Biostatistics School of Public Health University of Texas Houston TX USA
| | - L Friedman
- Department of Periodontics and Dental Hygiene School of Dentistry University of Texas Houston TX USA
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Parthasarathy K, Praveen C, Kumar PS, Balachandran C, Perumal PT. Cu(OTf)2 catalyzed three component strategy for the synthesis of thienopyridine containing spirooxindoles and their cytotoxic evaluation. RSC Adv 2015. [DOI: 10.1039/c4ra16605a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Compound 5v docked in caspase-3 (−10.5 kcal mol−1).
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Affiliation(s)
- K. Parthasarathy
- Organic Chemistry Division
- CSIR-Central Leather Research Institute
- Chennai
- India
- Analytical Research & Development
| | - C. Praveen
- Organic Chemistry Division
- CSIR-Central Leather Research Institute
- Chennai
- India
| | - P. Senthil Kumar
- Department of Bioinformatics
- Orchid Chemicals & Pharmaceuticals Ltd
- Research & Development Centre
- Chennai 600 119
- India
| | - C. Balachandran
- Division of Cancer Biology
- Entomology Research Institute
- Loyola College
- Chennai 600 034
- India
| | - P. T. Perumal
- Organic Chemistry Division
- CSIR-Central Leather Research Institute
- Chennai
- India
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Balachandran C, Sangeetha B, Duraipandiyan V, Raj MK, Ignacimuthu S, Al-Dhabi NA, Balakrishna K, Parthasarathy K, Arulmozhi NM, Arasu MV. A flavonoid isolated from Streptomyces sp. (ERINLG-4) induces apoptosis in human lung cancer A549 cells through p53 and cytochrome c release caspase dependant pathway. Chem Biol Interact 2014; 224:24-35. [PMID: 25289772 DOI: 10.1016/j.cbi.2014.09.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Revised: 08/31/2014] [Accepted: 09/23/2014] [Indexed: 02/07/2023]
Abstract
The aim of this study was to investigate the anticancer activity of a flavonoid type of compound isolated from soil derived filamentous bacterium Streptomyces sp. (ERINLG-4) and to explore the molecular mechanisms of action. Cytotoxic properties of ethyl acetate extract was carried out against A549 lung cancer cell line using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. Cytotoxic properties of isolated compound were investigated in A549 lung cancer cell line, COLO320DM cancer cell line and Vero cells. The compound showed potent cytotoxic properties against A549 lung cancer cell line and moderate cytotoxic properties against COLO320DM cancer cell line. Isolated compound showed no toxicity up to 2000 μg/mL in Vero cells. So we have chosen the A549 lung cancer cell line for further anticancer studies. Intracellular visualization was done by using a laser scanning confocal microscope. Apoptosis was measured using DNA fragmentation technique. Treatment of the A549 cancer cells with isolated compound significantly reduced cell proliferation, increased formation of fragmented DNA and apoptotic body. Activation of caspase-9 and caspase-3 indicated that compound may be inducing intrinsic and extrinsic apoptosis pathways. Bcl-2, p53, pro-caspases, caspase-3, caspase-9 and cytochrome c release were detected by western blotting analysis after compound treatment (123 and 164 μM). The activities of pro-caspases-3, caspase-9 cleaved to caspase-3 and caspase-9 gradually increased after the addition of isolated compound. But Bcl-2 protein was down regulated after treatment with isolated compound. Molecular docking studies showed that the compound bound stably to the active sites of caspase-3 and caspase-9. These results strongly suggest that the isolated compound induces apoptosis in A549 cancer cells via caspase activation through cytochrome c release from mitochondria. The present results might provide helpful suggestions for the design of antitumor drugs toward lung cancer treatment.
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Affiliation(s)
- C Balachandran
- Division of Microbiology and Cancer Biology, Entomology Research Institute, Loyola College, Chennai 600 034, India
| | - B Sangeetha
- Department of Toxicology, Advinus Therapeutics Ltd, Bangalore 560058, India
| | - V Duraipandiyan
- Division of Microbiology and Cancer Biology, Entomology Research Institute, Loyola College, Chennai 600 034, India; Department of Botany and Microbiology, College of Science, King Saud University, P.O.Box. 2455, Riyadh 11451, Saudi Arabia.
| | - M Karunai Raj
- Research and Development Centre, Orchid Chemicals and Pharmaceuticals Ltd, Sozhanganallur, Chennai 600119, India
| | - S Ignacimuthu
- Division of Microbiology and Cancer Biology, Entomology Research Institute, Loyola College, Chennai 600 034, India
| | - N A Al-Dhabi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O.Box. 2455, Riyadh 11451, Saudi Arabia
| | - K Balakrishna
- Division of Microbiology and Cancer Biology, Entomology Research Institute, Loyola College, Chennai 600 034, India
| | - K Parthasarathy
- Research and Development Centre, Orchid Chemicals and Pharmaceuticals Ltd, Sozhanganallur, Chennai 600119, India
| | - N M Arulmozhi
- Department of Bioinformatics, Orchid Chemicals and Pharmaceuticals Ltd, Research and Development Centre, Shozanganallur, Chennai 600 119, India
| | - M Valan Arasu
- Department of Botany and Microbiology, College of Science, King Saud University, P.O.Box. 2455, Riyadh 11451, Saudi Arabia
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Parthasarathy K, Praveen C, Balachandran C, Senthil kumar P, Ignacimuthu S, Perumal P. Cu(OTf)2 catalyzed three component reaction: Efficient synthesis of spiro[indoline-3,4′-pyrano[3,2-b]pyran derivatives and their anticancer potency towards A549 human lung cancer cell lines. Bioorg Med Chem Lett 2013; 23:2708-13. [DOI: 10.1016/j.bmcl.2013.02.086] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 02/13/2013] [Accepted: 02/15/2013] [Indexed: 10/27/2022]
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Abstract
An extension of the backpropagation method, termed dynamic backpropagation, which can be applied in a straightforward manner for the optimization of the weights (parameters) of multilayer neural networks is discussed. The method is based on the fact that gradient methods used in linear dynamical systems can be combined with backpropagation methods for neural networks to obtain the gradient of a performance index of nonlinear dynamical systems. The method can be applied to any complex system which can be expressed as the interconnection of linear dynamical systems and multilayer neural networks. To facilitate the practical implementation of the proposed method, emphasis is placed on the diagrammatic representation of the system which generates the gradient of the performance function.
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Affiliation(s)
- K S Narendra
- Dept. of Electr. Eng., Yale Univ., New Haven, CT
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Khan AG, Parthasarathy K, Bhalla US. Odor representations in the mammalian olfactory bulb. Wiley Interdiscip Rev Syst Biol Med 2011; 2:603-611. [PMID: 20836051 DOI: 10.1002/wsbm.85] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A first key step in studying a sensory modality is to define how the brain represents the features of the sensory stimulus. This has proven to be a challenge in olfaction, where even the stimulus features have been a matter of considerable debate. In this review, we focus on olfactory representations in the first stage of the olfactory pathway, the olfactory bulb (OB). We examine the diverging viewpoints on spatially organized versus distributed representations. We then consider how odor sampling through respiration is a key part of the odorant code. Finally, we ask how the bulb handles the challenging task of representing mixtures. We suggest that current evidence points toward a representation that is spatially organized at the inputs but later distributed, with the spatial organization not being used for much computation. Nevertheless, this is a simple representation that effectively represents multiple individual odorants, as well as odor mixtures.
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Affiliation(s)
- Adil Ghani Khan
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, Karnataka, India
| | - K Parthasarathy
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, Karnataka, India
| | - Upinder Singh Bhalla
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, Karnataka, India
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Gindi GR, Gmitro AF, Parthasarathy K. Hopfield model associative memory with nonzero-diagonal terms in memory matrix. Appl Opt 1988; 27:129-134. [PMID: 20523557 DOI: 10.1364/ao.27.000129] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The discrete-valued neural network proposed by Hopfield requires zero-diagonal terms in the memory matrix so that the net evolves toward a local minimum of an energy function. For a version of this model with bipolar nodes and positive terms along the diagonal, the net evolves so that only updates that lower the energy by a sufficient amount are accepted. For a net programmed as an outer-product associative content-addressable memory, the version with nonzero-diagonal elements performs nearly identically to one with zero-diagonal terms, and the dropping of the zero-diagonal requirement is advantageous for optical implementation.
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Sridhar M, Srinath R, Parthasarathy K. On the direct parallel solution of systems of linear equations: New algorithms and systolic structures. Inf Sci (N Y) 1987. [DOI: 10.1016/0020-0255(87)90030-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gothi GD, Chakraborty AK, Parthasarathy K, Krishnamurthy VV. Incidence of pulmonary tuberculosis and change in bacteriological status of cases at shorter intervals. Indian J Med Res 1978; 68:564-74. [PMID: 103812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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