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Kumari R, Syeda S, Shrivastava A. Nature's Elixir for Cancer Treatment: Targeting Tumor-induced Neovascularization. Curr Med Chem 2024; 31:CMC-EPUB-138882. [PMID: 38425113 DOI: 10.2174/0109298673282525240222050051] [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: 10/17/2023] [Revised: 01/20/2024] [Accepted: 02/09/2024] [Indexed: 03/02/2024]
Abstract
Angiogenesis, a multistep process, involves sprouting of new vessels from the pre-existing vessels in response to a stimulus in its microenvironment. Normally, angiogenesis is important for tissue maintenance and homeostasis, however it is also known to be associated with various pathologies, including cancer. Importantly, neovascularization is very crucial for tumors to grow and metastasize since it allows delivery of oxygen and nutrients as well as promotes tumor cell dissemination to distant sites. Activation of angiogenic switch is a consequence of imbalance in pro- as well as anti-angiogenic factors, that are immensely impacted by reactive oxygen species and epigenetic regulation. Several reports have suggested that angiogenic inhibitors significantly inhibit tumor growth. Therefore, anti-angiogenic therapy has gained substantial attention and has been considered a rational approach in cancer therapeutics. In this line, several anti- angiogenic drugs have been approved, however, their long term usage caused several side effects. In view of this, researchers switched to plant-based natural compounds for identifying safe and cost-effective anti-angiogenic drugs. Of note, various phytochemicals have been evaluated to reduce tumor growth by inhibiting tumor-induced angiogenesis. Moreover, the implication of nano-carriers to enhance the bioavailability of phytochemicals has proven to be more efficient anti-cancer agents. The present review highlights the existing knowledge on tumor-induced neovascularization and its regulation at the epigenetic level. Further, we emphasize the inhibitory effect of phytochemicals on tumor- induced angiogenesis that will open up new avenues in cancer therapeutics.
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Affiliation(s)
- Rani Kumari
- Department of Zoology, University of Delhi, Delhi-110007, India
| | - Saima Syeda
- Department of Zoology, University of Delhi, Delhi-110007, India
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Kumari A, Syeda S, Rawat K, Kumari R, Shrivastava A. Melatonin modulates L-arginine metabolism in tumor-associated macrophages by targeting arginase 1 in lymphoma. Naunyn Schmiedebergs Arch Pharmacol 2024; 397:1163-1179. [PMID: 37639022 DOI: 10.1007/s00210-023-02676-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 08/14/2023] [Indexed: 08/29/2023]
Abstract
L-Arginine metabolism plays a crucial role in determining the M1/M2 polarization of macrophages. The M1 macrophages express inducible nitric oxide synthase (iNOS), while the M2 macrophages express arginase 1 and metabolize arginine into nitric oxide and urea, respectively. The tumor microenvironment promotes M2 macrophage polarization and consequently switches the metabolic fate of arginine from nitric oxide towards urea production. Importantly, infiltration of M2 macrophages or tumor-associated macrophages (TAMs) has been correlated with poor prognosis of various cancer types. Melatonin is well reported to have antitumor and immunomodulatory properties. However, whether and how it impacts the polarization of TAMs has not been elucidated. Considering the crucial role of arginine metabolism in macrophage polarization, we were interested to know the fate of L-arginine in TAMs and whether it can be reinstated by melatonin or not. We used a murine model of Dalton's lymphoma and established an in vitro model of TAMs. For TAMs, we used the ascitic fluid of tumor-bearing hosts to activate the macrophages in the presence and absence of lipopolysaccharide (LPS). In these groups, L-arginine metabolism was evaluated, and then the effect of melatonin was assessed in these groups, wherein the metabolic fate of arginine as well as the expression of iNOS and arginase 1 were checked. Furthermore, in the in vivo system of the tumor-bearing host, the effect of melatonin was assessed. The in vitro model of TAMs showed a Th2 cytokine profile, reduced phagocytic activity, and increased wound healing ability. Upon investigating arginine metabolism, we observed high urea levels with increased activity and expression of arginase 1 in TAMs. Furthermore, we observed reduced levels of LPS-induced nitric oxide in TAMs; however, their iNOS expression was comparable. With melatonin treatment, urea level decreased significantly, while the reduction in nitric oxide level was not as significant as observed in its absence in TAMs. Also, melatonin significantly reduced arginase activity and expression at the transcriptional and translational levels, while iNOS expression was affected only at the translational level. This effect was further investigated in the in vivo system, wherein melatonin treatment reversed the metabolic fate of arginine, from urea towards nitric oxide, within the tumor microenvironment. This effect was further correlated with pro-apoptotic tumor cell death in the in vivo system. Our results reinforced the immunomodulatory role of melatonin and offered a strong prospect for activating the anti-tumor immune response in cancer conditions.
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Affiliation(s)
- Anupma Kumari
- Department of Zoology, University of Delhi, Delhi, 110007, India
| | - Saima Syeda
- Department of Zoology, University of Delhi, Delhi, 110007, India
| | - Kavita Rawat
- Department of Zoology, University of Delhi, Delhi, 110007, India
| | - Rani Kumari
- Department of Zoology, University of Delhi, Delhi, 110007, India
| | - Anju Shrivastava
- Department of Zoology, University of Delhi, Delhi, 110007, India.
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Anilakumari D, Singla D, Agarwal A, Kumari R. Comparative efficacy of Micropore™ surgical dressing, Tegaderm™ and Lockit plus® for lumbar epidural catheter fixation in children: a prospective parallel group randomized controlled trial. Rev Esp Anestesiol Reanim (Engl Ed) 2023; 70:429-437. [PMID: 37683972 DOI: 10.1016/j.redare.2022.04.005] [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] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/29/2022] [Indexed: 09/10/2023]
Abstract
BACKGROUND Proper fixation of an epidural catheter is necessary for desired drug effect and to prevent catheter displacement. Different techniques have been used for epidural catheter fixation. The aim of the study was to compare the relative efficacy of Micropore™ surgical dressing, Tegaderm™, and Lockit plus® in preventing lumbar epidural catheter migration in children. METHODS We studied 167 patients aged 5-16 years, for up to 48 h. After the elective abdominal or lower limb surgery. Patients were randomly assigned to one of three groups: (1) Micropore™ surgical dressing (group M), (2) Tegaderm™ (group T), or (3) Lockit plus® (group L). Incidence and extent of epidural catheter migration in centimetres (cm); was compared at 24 and 48 h post epidural fixation. Correlation between epidural catheter migration and patient characteristics, and relative incidence of complications in three groups was also analysed. RESULTS Incidence of catheter migration was 9.6% at 24 h (group M: 7.1%, group T: 21.1% and group L: 0%) and 45.5% at 48 h (group M: 66.1%, group T: 45.6% and group L: 24.1%). After 48 h, absolute migration (mean migration rounded off to the nearest 0.5 cm) was least in patients in group L: 0.34 cm (1.39) compared to group M 1.22 cm (SD: 1.85) group T: 0.94 cm (1.94) (p = <0.001). CONCLUSION Up to 48 h after surgery, the Lockit plus® device demonstrated the less epidural catheter migration when compared to micropore surgical dressing or tegaderm in children undergoing elective abdominal or lower limb surgery.
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Affiliation(s)
- D Anilakumari
- Department of Anesthesiology, AIIMS, Rishikesh, Uttarakhand, India
| | - D Singla
- Department of Anesthesiology, AIIMS, Rishikesh, Uttarakhand, India.
| | - A Agarwal
- Department of Anesthesiology, AIIMS, Rishikesh, Uttarakhand, India
| | - R Kumari
- Department of Anesthesiology, AIIMS, Rishikesh, Uttarakhand, India
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Patel VK, Das A, Kumari R, Kajla S. In silico Analysis of Diverse Endo-β-1,4-glucanases Reveals Their Molecular Evolution. J EVOL BIOCHEM PHYS+ 2023. [DOI: 10.1134/s0022093023010088] [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: 03/16/2023]
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Kumari R, Mustafi A. The spatial frequency domain designated watermarking framework uses linear blind source separation for intelligent visual signal processing. Front Neurorobot 2022; 16:1054481. [DOI: 10.3389/fnbot.2022.1054481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 10/27/2022] [Indexed: 11/13/2022] Open
Abstract
This paper develops a digital watermarking algorithm using an informed watermark retrieval architecture. The developed method uses the fractional Fourier transform to embed the watermark in the space-frequency domain and extracts the watermark using blind source separation techniques. The watermark embedding is further enhanced using a heuristic algorithm to increase the strength of the watermarking system. We use genetic algorithm to find the optimal fractional domain by minimizing the coefficient of RMSE between the input image and the watermarked image. The algorithm's performance against various common attacks, e.g., JPEG compression and Gaussian noise, is presented to estimate the algorithm's robustness.
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Kumari R, Lodhi C, Tripathi YM, Sinha RK. Estimation of stress–strength reliability for inverse exponentiated distributions with application. IJQRM 2022. [DOI: 10.1108/ijqrm-06-2021-0182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PurposeInferences for multicomponent reliability is derived for a family of inverted exponentiated densities having common scale and different shape parameters.Design/methodology/approachDifferent estimates for multicomponent reliability is derived from frequentist viewpoint. Two bootstrap confidence intervals of this parametric function are also constructed.FindingsForm a Monte-Carlo simulation study, the authors find that estimates obtained from maximum product spacing and Right-tail Anderson–Darling procedures provide better point and interval estimates of the reliability. Also the maximum likelihood estimate competes good with these estimates.Originality/valueIn literature several distributions are introduced and studied in lifetime analysis. Among others, exponentiated distributions have found wide applications in such studies. In this regard the authors obtain various frequentist estimates for the multicomponent reliability by considering inverted exponentiated distributions.
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Kumari R, Janković M, Costa A, Savić A, Konstantinović L, Djordjević O, Vucković A. Short term priming effect of brain-actuated muscle stimulation using bimanual movements in stroke. Clin Neurophysiol 2022; 138:108-121. [DOI: 10.1016/j.clinph.2022.03.002] [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] [Received: 10/11/2021] [Revised: 02/26/2022] [Accepted: 03/01/2022] [Indexed: 11/03/2022]
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Kumari R, Jaiswal H, Chowdhury T, Ghosh A. Antibody conjugated magnetic nanoparticle based colorimetric assay for the detection and quantification of aflatoxin B1 in wheat grains. WORLD MYCOTOXIN J 2021. [DOI: 10.3920/wmj2021.2687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Aflatoxin B1 (AFB1) is a most potent carcinogenic secondary metabolite produced by Aspergillus flavus. As a food safety concern, development of a rapid, cost effective, sensitive and easy to use method for the detection of aflatoxin is of prime requirement. In this study, AFB1 was conjugated with bovine serum albumin (BSA), and AFB1-BSA conjugate was purified by HPLC. Purification was confirmed by UV-Vis spectroscopy, FTIR and MALDI-TOF mass spectrometry. The polyclonal antibody was raised against AFB1-BSA conjugate in rabbit and purified by protein A sepharose and BSA sepharose affinity columns. Iron oxide nanoparticles (MNPs) were synthesised by co-precipitation method and their surface was functionalised with (3-aminopropyl) triethoxysilane (APTES). Size of APTES conjugated MNPs was determined by electron microscopy, and characterised by several biophysical techniques. The purified anti-AFB1 antibody was conjugated with surface functionalised MNPs and the conjugation was confirmed by determining the sizes of free and antibody conjugated MNPs by field emission scanning electron microscope where increase of particle sizes from 10-20 to 40-50 nm was observed due to antibody conjugation. Anti-AFB1 antibody conjugated MNPs were used for capturing AFB1 from the aflatoxin spiked wheat grains with a recovery percentage of more than 80% and used effectively five times. The captured AFB1 was then quantified by a sensitive colorimetric assay where colourless AFB1 was first converted into coumaric acid by NaOH. Subsequently, coumaric acid reacted with 2,6-dibromoquinone-4-chloroimide (DBQC) to a green-coloured indophenol product which was quantified spectrophotometrically. AFB1 contamination as low as 2 μg/kg in wheat grains was detected by the developed technique suggesting its potential application for both qualitative and quantitative analysis of aflatoxins present in feed and food materials.
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Affiliation(s)
- R. Kumari
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - H. Jaiswal
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - T. Chowdhury
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - A.K. Ghosh
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
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Behera B, Kumari R, Mohan Thappa D, Hanuman Srinivas B, Gochhait D, Ayyanar P. Dermoscopic features of acquired perforating dermatosis: a retrospective analysis of 19 cases. Clin Exp Dermatol 2020; 46:184-187. [PMID: 32905649 DOI: 10.1111/ced.14444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/30/2020] [Accepted: 08/31/2020] [Indexed: 11/30/2022]
Affiliation(s)
- B Behera
- Departments of, Department of, Dermatology and Venereology, All India Institute of Medical Sciences, Bhubaneswar, India
| | - R Kumari
- Departments, Department of, Dermatology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - D Mohan Thappa
- North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya, India
| | - B Hanuman Srinivas
- Department, Pathology, Venereology and Leprology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - D Gochhait
- Department, Pathology, Venereology and Leprology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - P Ayyanar
- Department, Pathology, All India Institute of Medical Sciences, Bhubaneswar, India
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Bettermann K, Sinha K, Kumari R, Fox C, Simpson IA. The peripheral immune response in hyperglycemic stroke. Clin Neurol Neurosurg 2020; 195:106061. [PMID: 32682204 DOI: 10.1016/j.clineuro.2020.106061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 12/09/2019] [Revised: 05/27/2020] [Accepted: 07/01/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Hyperglycemia is common in acute ischemic stroke patients and is associated with poor clinical outcome. However, aggressive reduction of post-stroke hyperglycemia did not improve clinical outcome, suggesting that other mechanisms are playing a detrimental role in hyperglycemic stroke. We hypothesize that the acute post-stroke immune response is altered in the hyperglycemic state leading to higher mortality and morbidity. The objective of this study was to characterize temporal changes in circulating immune cells after stroke and their association with clinical outcomes in hyperglycemic compared to euglycemic patients. PATIENTS AND METHODS This retrospective study included 97 (58 % euglycemic, 42 % hyperglycemic) patients presenting within 12 h of symptom onset of stroke. Blood neutrophil, monocyte and lymphocyte concentrations were measured sequentially for 96 h post stroke. Primary clinical outcome was the difference in the NIH stroke scale at admission compared to discharge. Secondary outcome measures included discharge disposition and the modified Rankin Scale (mRS) at 90 days. RESULTS Circulating neutrophils were significantly higher in hyperglycemic than in euglycemic patients within the first 48 h post stroke, while lymphocyte counts trended to be lower. Hyperglycemic patients had higher mortality rates, less favorable discharge disposition and worse neurological function at 90 days. In both groups, the neutrophil to lymphocytes ratio ((NLR) remained strongly associated with neurological function at discharge within the first 24 h (p < 0.001), and remained significant in hyperglycemic patients up to 48 h (p < 0.001). Multivariate regression analysis showed no confounding by other factors and a significant correlation with differences in NIHSS score (CI; - 9.287 to -1.46, p = 0.0077**) and NLR (CL; 0.6058-6.901, p = 0.0203*) in hyperglycemic patients. CONCLUSIONS Our data suggests that circulating immune cells play an important role in mediating poor clinical outcome in hyperglycemic patients following stroke. The NLR is a strong predictor of neurological outcomes in hyperglycemic patients. Thus, the modulation of immune cells may be a viable therapeutic approach to improve outcomes for this high risk group.
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Affiliation(s)
- K Bettermann
- Department of Neurology, Penn State College of Medicine, Hershey, PA, USA.
| | - K Sinha
- Department of Neurology, Penn State College of Medicine, Hershey, PA, USA
| | - R Kumari
- Department of Neural & Behavioral Sciences, College of Medicine, Hershey, PA, USA
| | - C Fox
- Department of Neurology, Penn State College of Medicine, Hershey, PA, USA
| | - I A Simpson
- Department of Neural & Behavioral Sciences, College of Medicine, Hershey, PA, USA
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Arya G, Kumari R, Pundir R, Chatterjee S, Gupta N, Kumar A, Chandra R, Nimesh S. Versatile biomedical potential of biosynthesized silver nanoparticles from Acacia nilotica bark. J Appl Biomed 2019; 17:115-124. [DOI: 10.32725/jab.2019.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 06/03/2019] [Indexed: 11/05/2022] Open
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Dua R, Kumari R, Yadav V, Ranjan M, Kumar S, Mishra M, Tripathi S. New combined assessment of chronic obstructive pulmonary disease : Utilization, pitfalls, and association with spirometry. Lung India 2019. [DOI: 10.4103/0970-2113.257721] [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: 11/04/2022] Open
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Limbachiya D, Kumari R, Gandhi P. Laparoscopic Myonectomy for a Giant Uterine Myoma. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.532] [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: 11/24/2022]
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Limbachiya D, Kenkre M, Gandhi P, Shah S, Kumari R, Rani N. Laparoscopic Selective Resection of Isolated Pre-Caval and Pre-Aortic Nodal Recurrence in Endometrial Carcinoma. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.702] [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: 10/28/2022]
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Gupta V, Kumar S, Pratap A, Singh R, Kumari R, Kumar S, Aggarwal A, Misra R. Association of ITGAM, TNFSF4, TNFAIP3 and STAT4 gene polymorphisms with risk of systemic lupus erythematosus in a North Indian population. Lupus 2018; 27:1973-1979. [DOI: 10.1177/0961203318786432] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Several susceptibility genes have been associated with systemic lupus erythematosus (SLE) across different populations worldwide. However, data on association between genetic polymorphisms and SLE from Indian population is scarce. We aimed to replicate the association of single nucleotide polymorphisms (SNPs) in ITGAM, TNFSF4, TNFAIP3 and STAT4 genes with susceptibility to SLE in a North Indian population. Three hundred and ninety-four SLE patients and 583 unrelated healthy controls of the same ethnic background were enrolled. All samples were genotyped for SNPs in ITGAM (rs1143679), TNFSF4 (rs2205960), TNFAIP3 (rs5029939) and STAT4 (rs7574865) using TaqMan genotyping assay. At allele level, significant association with susceptibility to SLE was detected with polymorphisms in ITGAM (A vs. G, odds ratio (OR) = 1.73, 95% confidence interval (CI) = 1.30–2.30, p < 0.001), TNFSF4 (T vs. G, OR = 1.33, 95% CI = 1.08–1.64, p < 0.01), TNFAIP3 (G vs. C, OR = 1.91, 95% CI = 1.27–2.85, p < 0.01) and STAT4 (T vs. G, OR = 1.38, 95% CI = 1.13–1.69, p < 0.01). All four SNPs were associated with SLE under a dominant model with an OR of 1.47 (95% CI = 1.07–2.04, p < 0.05) for ITGAM, 1.30 (95% CI = 1.01–1.69, p < 0.05) for TNFSF4, 1.90 (95% CI = 1.25–2.90, p < 0.01) for TNFAIP3 and 1.38 (95% CI = 1.06–1.78, p < 0.05) for STAT4. Under a recessive model, significant association was found with ITGAM (OR = 4.87, 95% CI = 2.17–10.91, p < 0.001), TNFSF4 (OR = 1.84, 95% CI = 1.13–3.00, p < 0.05) and STAT4 (OR = 1.82, 95% CI = 1.19–2.77, p < 0.01). In conclusion, single nucleotide polymorphisms in ITGAM, TNFSF4, TNFAIP3 and STAT4 genes are associated with susceptibility to SLE in a North Indian population.
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Affiliation(s)
- V Gupta
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - S Kumar
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - A Pratap
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - R Singh
- Department of Biochemistry, King George’s Medical University, Lucknow, India
| | - R Kumari
- Department of Biochemistry, King George’s Medical University, Lucknow, India
| | - S Kumar
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - A Aggarwal
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - R Misra
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
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Behera B, Mathews I, Kumari R, Thappa DM, Toi PC, Patel B, Govindarajalou R. Clinical, dermoscopic and histopathological features of a rare cutaneous neural tumour. Clin Exp Dermatol 2018; 44:206-209. [PMID: 29978583 DOI: 10.1111/ced.13690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2018] [Indexed: 11/29/2022]
Affiliation(s)
- B Behera
- Department of Dermatology, Venereology and Leprology, JIPMER, Puducherry, India
| | - I Mathews
- Department of Dermatology, Venereology and Leprology, JIPMER, Puducherry, India
| | - R Kumari
- Department of Dermatology, Venereology and Leprology, JIPMER, Puducherry, India
| | - D M Thappa
- Department of Dermatology, Venereology and Leprology, JIPMER, Puducherry, India
| | - P C Toi
- Department of Pathology, JIPMER, Puducherry, India
| | - B Patel
- Department of Radiodiagnosis, JIPMER, Puducherry, India
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Affiliation(s)
- B Behera
- Dermatology, Venereology and Leprology, Jawaharlal Institute of Post Graduate Medical Education, Pondicherry, Puducherry, India
| | - S Vinupriya
- Dermatology, Venereology and Leprology, Jawaharlal Institute of Post Graduate Medical Education, Pondicherry, Puducherry, India
| | - R Kumari
- Dermatology, Venereology and Leprology, Jawaharlal Institute of Post Graduate Medical Education, Pondicherry, Puducherry, India
| | - D M Thappa
- Dermatology, Venereology and Leprology, Jawaharlal Institute of Post Graduate Medical Education, Pondicherry, Puducherry, India
| | - D Gochhait
- Pathology, Jawaharlal Institute of Post Graduate Medical Education, Pondicherry, Puducherry, India
| | - B Srinivas
- Pathology, Jawaharlal Institute of Post Graduate Medical Education, Pondicherry, Puducherry, India
| | - P Toi
- Pathology, Jawaharlal Institute of Post Graduate Medical Education, Pondicherry, Puducherry, India
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Kumari R, Das S. Metformin-induced activation of caspase-10 inhibits lung adenocarcinoma progression and metastasis. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx671.043] [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: 11/14/2022] Open
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Kumari R. Multimodal Dietary Treatment in Tourette’s Syndrome. J Acad Nutr Diet 2017. [DOI: 10.1016/j.jand.2017.06.179] [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: 10/19/2022]
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Abstract
For tumor to grow beyond 1-2 mm3 size, tumor recruits new blood vessels referred as angiogenesis; therefore, targeting angiogenesis can be a promising strategy to suppress cancer progression. In this study, in order to develop a good angiogenesis model, we investigated effect of Dalton's lymphoma on angiogenesis and further monitored the role of melatonin on regulation of angiogenesis. To evaluate angiogenesis, endothelial cells were isolated from main thoracic aorta and cultured in vitro in the presence or absence of Dalton's lymphoma supplemented with or without melatonin to monitor their role on its proliferation and migration, a hallmark of angiogenesis. Chick chorioallantoic membrane as well as mice mesentery which allows in vivo studies of tumor angiogenesis and testing of anti-angiogenic molecules was used to validate the in vitro analysis. To further extend our understanding about the regulation of the angiogenesis, we evaluated expression of tissue inhibitor of metalloproteinases 3, vascular endothelial growth factor, vascular endothelial growth factor receptor, and fibroblast growth factor in Dalton's lymphoma cells and mesentery by semiquantitative and quantitative reverse transcription polymerase chain reaction analysis. Dalton's lymphoma ascites induced significant increase in endothelial cell proliferation, migration, and sprouting of the tertiary branching in chorioallantoic membrane and mesentery of Dalton's lymphoma-bearing mice, whereas melatonin treatment led to their inhibition in a dose-dependent manner. Semiquantitative and quantitative reverse transcription polymerase chain reaction analysis of melatonin-treated Dalton's lymphoma cells and mesentery tissue clearly demonstrated restoration of angiogenesis-related genes tissue inhibitor of metalloproteinases 3 and reduction of vascular endothelial growth factor, vascular endothelial growth factor receptor, and fibroblast growth factor messenger RNA expression. Taken together, our results strongly demonstrate that Dalton's lymphoma provides pro-angiogenic environment leading to significant increase in angiogenesis, and further melatonin treatment reduced the Dalton's lymphoma ascites-induced angiogenesis implying that Dalton's lymphoma can serve as a very good model to study angiogenesis as well as for screening of drugs that can target angiogenesis.
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Affiliation(s)
- Rani Kumari
- Department of Zoology, University of Delhi, Delhi, India
| | - Kavita Rawat
- Department of Zoology, University of Delhi, Delhi, India
| | - Anupma Kumari
- Department of Zoology, University of Delhi, Delhi, India
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McKenzie A, Papadopoulou N, Yin Y, Jiang S, Wrigley J, King J, Garland R, Williams N, Kumari R. Combination strategies with checkpoint immunotherapy and inducers of immunogenic cell death (ICD) in immune competent syngeneic models. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)32931-8] [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: 10/20/2022]
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Andrew M, Nektaria P, Simon J, Jane W, Jason K, Vicky L, Kelly J, Russell G, Neil W, Kumari R. Evaluation of tumour infiltrating immune cells into the orthotopic and metastatic tumour microenvironment using bioluminescent syngeneic cell line models in immune competent mice following treatment with checkpoint inhibitors. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)32930-6] [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: 11/25/2022]
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Lutchman G, Nguyen NH, Chang CY, Ahmed A, Daugherty T, Garcia G, Kumari R, Gupta S, Doshi D, Nguyen MH. Effectiveness and tolerability of simeprevir and sofosbuvir in nontransplant and post-liver transplant patients with hepatitis C genotype 1. Aliment Pharmacol Ther 2016; 44:738-46. [PMID: 27506182 DOI: 10.1111/apt.13761] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/16/2016] [Accepted: 07/21/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND Hepatitis C virus genotype 1a (HCV-1a), prior treatment, cirrhosis and post-transplant status are historically associated with poor treatment responses. The new oral direct-acting agents appear to be effective and safe in these patients. AIMS To evaluate the effectiveness and tolerability of simeprevir and sofosbuvir in a diverse real-life cohort of patients, including difficult-to-treat patients. METHODS We conducted a retrospective cohort study in 198 consecutive patients with hepatitis C genotype 1 (148 nontransplant, 50 post transplant), who were treated with simeprevir and sofosbuvir for 12 weeks between December 2013 and December 2014. Primary outcome was sustained virological response with undetectable HCV RNA 12 weeks after completion of therapy (SVR12). Risk factors evaluated for lack of SVR12 included HCV 1a (vs. 1b), prior treatment (vs. none), and cirrhosis (vs. no cirrhosis). RESULTS SVR12 rates were similar in non- and post-transplant settings, 82% and 88%, respectively. There were no significant differences in adverse events in patients regardless of cirrhosis or transplant status. On multivariate analysis also inclusive of gender and liver transplant status, negative predictors of SVR12 were having at least 2 or 3 risk factors (OR 0.30, 95% CI 0.10-0.87, P = 0.027 or 0.29, 95% CI 0.09-0.85, P = 0.025, respectively). CONCLUSION Simeprevir and sofosbuvir combination is a safe and effective regimen for the treatment of non- and post-transplant patients with traditional risk factors for poor treatment response, unless more than 2 difficult-to-treat risk factors are present.
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Affiliation(s)
- G Lutchman
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - N H Nguyen
- School of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - C Y Chang
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - A Ahmed
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - T Daugherty
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - G Garcia
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - R Kumari
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - S Gupta
- Medical Affairs, Janssen Scientific Affairs, Titusville, NJ, USA
| | - D Doshi
- Health Economics & Outcomes Research, Janssen Scientific Affairs, Titusville, NJ, USA
| | - M H Nguyen
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
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Tripathi R, Sinha P, Kumari R, Chaubey P, Pandey A, Anupurba S. Detection of rifampicin resistance in tuberculosis by molecular methods: A report from Eastern Uttar Pradesh, India. Indian J Med Microbiol 2016; 34:92-4. [PMID: 26776127 DOI: 10.4103/0255-0857.174122] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Diagnosis of drug resistance tuberculosis (TB) by the gold standard method is labour intensive and time consuming. Hence, there is an urgent need for introduction of rapid diagnostic techniques. Line probe assay (LPA) and cartridge-based nucleic acid amplification test (CBNAAT) have been introduced in India under Revised National Tuberculosis Control Program. Spot and morning sputum samples of previously treated patients by anti-TB drugs were subjected to LPA or CBNAAT. Total 682/1253 (54.4%) were diagnosed as rifampicin-resistant. The patients could be diagnosed early by molecular methods and put on second line treatment.
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Affiliation(s)
| | | | | | | | | | - S Anupurba
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Islam N, Kumari R, Midha D. Establishing the prevalence of dyspraxia in individuals with visual impairment using Bruininks Oseretsky test of motor proficiency, second edition. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3489] [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: 11/15/2022]
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Sharma S, Javadekar SM, Pandey M, Srivastava M, Kumari R, Raghavan SC. Homology and enzymatic requirements of microhomology-dependent alternative end joining. Cell Death Dis 2015; 6:e1697. [PMID: 25789972 PMCID: PMC4385936 DOI: 10.1038/cddis.2015.58] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 12/24/2014] [Accepted: 02/09/2015] [Indexed: 01/19/2023]
Abstract
Nonhomologous DNA end joining (NHEJ) is one of the major double-strand break (DSB) repair pathways in higher eukaryotes. Recently, it has been shown that alternative NHEJ (A-NHEJ) occurs in the absence of classical NHEJ and is implicated in chromosomal translocations leading to cancer. In the present study, we have developed a novel biochemical assay system utilizing DSBs flanked by varying lengths of microhomology to study microhomology-mediated alternative end joining (MMEJ). We show that MMEJ can operate in normal cells, when microhomology is present, irrespective of occurrence of robust classical NHEJ. Length of the microhomology determines the efficiency of MMEJ, 5 nt being obligatory. Using this biochemical approach, we show that products obtained are due to MMEJ, which is dependent on MRE11, NBS1, LIGASE III, XRCC1, FEN1 and PARP1. Thus, we define the enzymatic machinery and microhomology requirements of alternative NHEJ using a well-defined biochemical system.
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Affiliation(s)
- S Sharma
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
| | - S M Javadekar
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
| | - M Pandey
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
| | - M Srivastava
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
| | - R Kumari
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
| | - S C Raghavan
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
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Perumpail RB, Wong RJ, Ha LD, Pham EA, Wang U, Luong H, Kumari R, Daugherty TJ, Higgins JP, Younossi ZM, Kim WR, Glenn JS, Ahmed A. Sofosbuvir and simeprevir combination therapy in the setting of liver transplantation and hemodialysis. Transpl Infect Dis 2015; 17:275-8. [PMID: 25641426 DOI: 10.1111/tid.12348] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [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: 10/02/2014] [Revised: 12/06/2014] [Accepted: 12/10/2014] [Indexed: 12/28/2022]
Abstract
We report safety, tolerability, and 12-week sustained virologic response with half-standard dose sofosbuvir and standard-dose simeprevir combination therapy in a hepatitis C virus genotype 1a-infected liver transplant recipient on hemodialysis - uncharted territory for sofosbuvir-based therapy. The patient was a non-responder to prior treatment with pegylated interferon plus ribavirin. Sofosbuvir efficacy was maintained despite pill-splitting and administration of half-standard dose, 200 mg per day. No drug-drug interactions were noted with tacrolimus-based immunosuppression. Laboratory tests remained stable or improved during therapy. Our observation, if reproduced in a larger study, may lead to significant improvement in clinical outcomes and cost savings in this patient population.
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Affiliation(s)
- R B Perumpail
- Division of Gastroenterology and Hepatology, Liver Transplant Program, Stanford University School of Medicine, Stanford, California, USA
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Papadopoulou N, McKenzie A, King J, Page M, Kumari R. 185 Treatment of patient-derived NSCLC xenograft preclinical models using image-guided small animal irradiation. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70311-9] [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: 11/28/2022]
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Rajesh NG, Siddaraju N, Muthalagan E, Jain D, Kumari R, Balasubramanian P. Report of a case emphasizing the clinical utility of fine needle aspiration cytology in the diagnosis of histoid leprosy. Cytopathology 2014; 26:132-3. [PMID: 24734966 DOI: 10.1111/cyt.12144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- N G Rajesh
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
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Gulati AS, Patnaik AN, Barik R, Kumari R, Srinivas S. Renal angioplasty for atherosclerotic renal artery stenosis: Cardiologist's perspective. J Postgrad Med 2013; 59:289-99. [PMID: 24346387 DOI: 10.4103/0022-3859.123157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Atherosclerotic renal artery stenosis (ARAS) is frequently associated with concomitant coronary and peripheral arterial disease with a significant impact on cardiovascular morbidity and mortality. Renal angioplasty of ARAS is more challenging because of increased incidence of technical failures, complications, and restenosis; while there is barely perceptible control of hypertension and only marginal improvement in renal function. This is because most of the patient population in recent randomized trials had unmanifested or clinically silent renovascular disease. Manifestations of RAS should be looked for and incorporated in the management plan particularly before deciding for revascularization. In the absence of clinical manifestation like renovascular hypertension, ischemic nephropathy, left ventricular failure, or unstable coronary syndromes; mere presence of RAS is analogous to presence of concomitant peripheral arterial disease which increases risk of adverse coronary events. Dormant-RAS in the absence of any manifestations can be managed with masterly inactivity. Chronological sequence of events and clinical condition of the patient help in decision making by identifying progressive renovascular disease. Selecting patients for renal artery stenting who actually will benefit from revascularization shall also decrease the unnecessary complications inherent with any interventional procedure. The present review is an attempt to analyze the current view on the diagnostic and management issues more specifically about the need and rationale behind angioplasty.
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Affiliation(s)
- A S Gulati
- Department of Cardiology, Nizam's Institute of Medical Sciences, Panjagutta, Hyderabad, Andhra Pradesh, India
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Abstract
INTRODUCTION Post-operative astigmatism is one of the most important causes for diminution of vision after trabeculectomy. OBJECTIVE To evaluate the induced corneal astigmatism following trabeculectomy with the use of 8-0 silk suture. MATERIALS AND METHODS A prospective interventional study was done including 100 consecutive eyes of 84 patients who underwent trabeculectomy with the use of 8-0 silk suture. The postoperative induced astigmatism on the 1st post-operative day, 3rd week and after 6 months was determined. STATISTICS Vector analysis was performed on the data using a computerized method for calculating the surgically induced astigmatism (SIA) for each eye at every time point postoperatively. In order to analyze group changes, we also performed vector decomposition which gave us a mathematical expression of the changes in astigmatism "with the rule" (WTR) or "against the rule" (ATR). RESULTS The mean age of all the patients was 53.31 11.39 years. The mean 1st post-operative surgically induced astigmatism (SIA) was 2.73 D ( 99 degree ) which reduced to 0.41 D ( 58 degree) at the 3rd week and 0.43 ( 21 degree) at 6 months. The mean WTR astigmatism was 4.46 D and ART astigmatism was 1.42 D on the 1st post-operative day which was significantly high ( p less than 0.0001). At the 3rd week and 6 months WTR astigmatism ( 1.40 D and 1.08D ) and ATR astigmatism (1.27 D and 1.10 D) showed no significant changes (p=0.69,0.97 respectively. CONCLUSION Trabeculectomy with the use of 8/0 silk sutures showed significantly high 1st post-operative day SIA which nevertheless perished fast to a minimum amount at just 3 weeks.
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Faruq M, Narang A, Kumari R, Pandey R, Garg A, Behari M, Dash D, Srivastava AK, Mukerji M. Novel mutations in typical and atypical genetic loci through exome sequencing in autosomal recessive cerebellar ataxia families. Clin Genet 2013; 86:335-41. [PMID: 24102492 DOI: 10.1111/cge.12279] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [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: 06/18/2013] [Revised: 09/11/2013] [Accepted: 09/12/2013] [Indexed: 12/19/2022]
Abstract
Nearly a thousand mutations mapping to 60 different loci have been identified in cerebellar ataxias. However, almost 50% of the cases remain genetically uncharacterized and there is a difference in prevalence as well as in the phenotypic spectrum of ataxia among various geographical regions. This poses a challenge for setting up a genetic panel for screening ataxia. In our ataxic cohort of 1014 families, 61% are genetically uncharacterized (UC). We investigated the potential of whole exome sequencing in conjunction with homozygosity mapping (HM) to delineate the genetic defects in three uncharacterized families with recessive inheritance each manifesting some unusual phenotype: (i) infantile onset ataxia with hearing loss (IOAH), (ii) Juvenile onset cerebellar ataxia with seizures (JCS) and (iii) Friedreich ataxia-like (FA-like). We identified a novel missense mutation in c10orf2 in the family with IOAH, compound heterozygous mutations in CLN6 in the family with JCS and a homozygous frame-shift mutation in SACS in the FA-like patient. Phenotypes observed in our families were concordant with reported phenotypes of known mutations in the same genes thus obviating the need for functional validation. Our study revealed novel variations in three genes, c10orf2, CLN6, and SACS, that have so far not been reported in India. This study also demonstrates the utility of whole exome screening in clinics for early diagnosis.
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Affiliation(s)
- M Faruq
- Genomics and Molecular Medicine, CSIR - Institute of Genomics and Integrative Biology, Delhi, India; Neurology Department, Neuroscience Centre, All India Institute of Medical Sciences, New Delhi, India
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Faruq M, Narang A, Kumari R, Dash D, Srivastava A, Mukerji M. Genetic deconvolution of cerebellar ataxias in India through next generation sequencing: Novel mutations in atypical and typical genetic loci. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.474] [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: 11/30/2022]
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Mckenzie A, Cranston A, Mallinder P, Papadopoulou N, Reece-Smith A, Onion D, Grabowska A, Page M, Kumari R. 167 In Vivo Generation of EGFRi Resistance in a Proprietary Patient-derived Xenograft with an Activating EGFR Mutation (L858R); Subsequent Validation in an Orthotopic Lung Model with 3D Optical Tomographic MicroCT Imaging. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71965-2] [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: 11/28/2022]
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Ezard C, Kumari R, Willott R, Butt S, Gadsby K, Deighton C. What is meant by active disease in the NICE recommendation on use of combination therapy in early RA? Rheumatology (Oxford) 2012; 51:947-8. [DOI: 10.1093/rheumatology/ker513] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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Midha T, Nath B, Kumari R, Rao YK, Lekhwani S, Vaswani ND, Pandey U. Clinical predictors of influenza A(H1N1) in Kanpur, India. J Indian Med Assoc 2012; 110:22-39. [PMID: 23029826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Influenza A (H1N1) commonly known as swine flu, has covered a large part of the globe rapidly since the outbreak started in Mexico on 18th March, 2009. Given the rapid worldwide spread of the virus, it is important to identify the symptoms that require screening for influenza A(H1N1). Therefore, this study was planned to determine the clinical predictors of influenza A(H1N1) in the population of Kanpur city. Study sample comprised all cases with flu-like symptoms suspected of having influenza A(H1N1) whose nasopharyngeal samples had been sent for laboratory examination. Of the 119 samples sent to the laboratory, 34 were found to be positive for influenza A(H1N1). Best predictors found were fever with shortness of breath (positive predictive value=87.5%) followed by fever with cough without other cold like features (positive predictive value=68.6%). None of the clinical signs had all the attributes of a good predictor of influenza A(H1N1). Fever with cough was the most sensitive (70.6%) and fever with shortness of breath was the most specific indicator (98.8%). Therefore, it was concluded that symptoms like fever with cough without other cold like features and fever with shortness of breath should not be ignored and require expert medical attention for screening of influenza A(H1N1).
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Affiliation(s)
- T Midha
- Department of Community Medicine, GSVM Medical College, Kanpur 208002
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Kumari R. 2.008 MR IMAGING BIOMARKERS FOR DIFFERENTIATION OF PARKINSON DISEASE FROM HEALTHY CONTROLS USING DIFFUSION TENSOR IMAGING ON 3 TESLA MRI. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70441-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Joshi P, Kumari R, Idris MZ, Ahmad N, Saran RK, Natu SM. P2-435 Specific risk factors associated with coronary heart disease in Indians. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976l.65] [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: 11/03/2022]
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Mishra US, Mishra A, Kumari R, Murthy PN, Naik BS. Antibacterial Activity of Ethanol Extract of Andrographis paniculata. Indian J Pharm Sci 2011; 71:436-8. [PMID: 20502551 PMCID: PMC2865817 DOI: 10.4103/0250-474x.57294] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2008] [Revised: 03/23/2009] [Accepted: 08/02/2009] [Indexed: 11/15/2022] Open
Abstract
In the present study the ethanol extract of the aerial part of Andrographis paniculata was prepared and evaluated for antimicrobial activity against eleven bacterial strains by determining minimum inhibitory concentration and zone of inhibition. Minimum inhibitory concentration values were compared with control and zone of inhibition values were compared with standard ciprofloxacin in concentration 100 and 200 μg/ml. The results revealed that, the ethanol extract is potent in inhibiting bacterial growth of both Gram-negative and Gram positive bacteria.
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Affiliation(s)
- U S Mishra
- Royal College of Pharmacy and Health Sciences, Berhampur, Ganjam-760 002, India
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Singh S, Kumari R, Agrawal M, Agrawal SB. Growth, yield and tuber quality of Solanum tuberosum L. under supplemental ultraviolet-B radiation at different NPK levels. Plant Biol (Stuttg) 2011; 13:508-516. [PMID: 21489102 DOI: 10.1111/j.1438-8677.2010.00395.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In many areas, decreases in the stratospheric ozone layer have resulted in an increase in ultraviolet-B (UV-B, 280-315 nm) radiation reaching the Earth's surface. The present study was conducted to evaluate the interactive effects of supplemental UV-B (sUV-B) and mineral nutrients on a tuber crop, potato (Solanum tuberosum L. var Kufri Badshah), under natural field conditions in a dry tropical environment. The nutrient treatments were the recommended dose of NPK (F(o)), 1.5 times the recommended dose of NPK (F(1)), 1.5 times the recommended dose of N (F(2)) and 1.5 times the recommended dose of K (F(3)). The response of potato plants to sUV-B varied with nutrient treatment and concentration. sUV-B adversely affected growth, yield and quality of tubers, causing an increase in reducing sugars in the tubers and thus reducing the economic value. Growth and fresh weight of tubers was maximal with sUV-B at 1.5 times recommended NPK, but the dry weight of tubers were highest with the recommended NPK dose. Reducing sugar content was lower in potato plants treated with sUV-B and the recommended NPK than with sUV-B and 1.5 times the recommended NPK. This study thus clearly shows that growing potato with 1.5 times the recommended NPK or 1.5 times the recommended dose of N/K does not alleviate the sUV-B induced changes in yield and quality of tubers compared to the recommended NPK dose.
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Affiliation(s)
- S Singh
- Department of Botany, Laboratory of Air Pollution and Global Climate Change, Banaras Hindu University, Varanasi, India
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Kumari R, Argent R, Onion D, Clarke P, Watson S, King P, Page M. 272 Humanisation of xenograft models to optimally assess the c-Met: HGF paracrine axis. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71979-0] [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: 11/26/2022] Open
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Argent R, Kumari R, Clarke P, Onion D, Lobo D, Watson S, Grabowska A, King P, Hall B, Page M. 485 Restoration of paracrine signalling within the tumour microenvironment increases tumour growth and activation of c-Met. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)72192-3] [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: 10/18/2022] Open
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Onion D, Argent R, Kumari R, Watson S, Axel A, Hall B. 158 3D tumour models for the assessment of tumour micro-environment targeted therapies. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71863-2] [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: 11/29/2022] Open
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Agrawal S, Madan M, Kumari R, Gaikwad H, Raghunandan C, Leekha N, Ghuliani M. Gravid uterus as a content of anterior abdominal wall incisional hernia. J OBSTET GYNAECOL 2010; 30:518-9. [PMID: 20604661 DOI: 10.3109/01443615.2010.487578] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- S Agrawal
- Department of Obstetrics and Gynaecology, Lady Hardinge Medical College and Smt Sucheta Kriplani Hospital, New Delhi, India.
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Kumari R, Raval M, Dhun A. Cryptococcal choroid plexitis: rare imaging findings of central nervous system cryptococcal infection in an immunocompetent individual. Br J Radiol 2010; 83:e14-7. [PMID: 20139243 PMCID: PMC3487264 DOI: 10.1259/bjr/50945216] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2008] [Revised: 02/04/2009] [Accepted: 02/10/2009] [Indexed: 11/05/2022] Open
Abstract
Central nervous system (CNS) cryptococcosis is a common opportunistic fungal infection in immunocompromised patients, and the imaging findings differ from those in immunocompetent patients. Here, we present the imaging findings in an immunocompetent woman of a rare case of central nervous system cryptococcal choroid plexitis with trapped temporal horns, enlarged enhancing bilateral choroid plexuses and multiple intraventricular choroid plexus cysts.
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Affiliation(s)
- R Kumari
- Department of Neuroradiology, Institute of Human Behaviour and Allied Sciences, Dilshad Garden, Shahadara, Delhi-95, India.
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Kumari R. P1.221 Diffusion tensor imaging of the substantia nigra on 3 Tesla MRI: comparison of Parkinson's disease with age matched controls. Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70343-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
BACKGROUND India has one of the most extensive health infrastructures- a three-tier hierarchical referral system- for the provision of effective and efficient health services to the majority of its population. In this study we have tried to evaluate the utilization of such a wide health infrastructure and the various factors affecting it. We have also tried to find the factors that motivated the patients to visit the present health facility and the key persons who motivated them to do so. METHODS Time bound cross-sectional study. SETTING Three types of referral health facilities in Lucknow District. PARTICIPANTS A total of 1265 patients were interviewed during the four months of the period of survey from these three types of referral health facilities. RESULTS The present study revealed that majority of the patients coming to all the three referral centres were the new patients (89%), about two-thirds of whom had come there directly. Overall, only one tenth of the patients attending the secondary and tertiary level public health facilities were referred by someone. Most of the indirect patients had self referred themselves. About eight and nine percent of the indirect and referred patients could reach the present site of treatment only after more than two years of rummaging and about 13% and 11% had spent more than ten thousand rupees respectively, which in some cases even amounted to lakh rupees. CONCLUSIONS The utilization of the referral system of the health care delivery in India needs to be augmented. Before planning future reforms such as decentralization, incorporation of the Indian system of Medicine, and other steps we need to develop mechanisms to see that the plans are materialized.
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Affiliation(s)
- Nath Bhola
- Department of Community Medicine, G.S.V.M. Medical College, Kanpur.
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Gupta G, Baghel AS, Bansal S, Tyagi TK, Kumari R, Saini NK, Ponnan P, Kumar A, Bose M, Saluja D, Patkar SA, Parmar VS, Raj HG. Establishment of Glutamine Synthetase of Mycobacterium smegmatis as a Protein Acetyltransferase utilizing Polyphenolic Acetates as the Acetyl Group Donors. J Biochem 2008; 144:709-15. [DOI: 10.1093/jb/mvn124] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Gupta SK, Kumari R, Prakash O, Lal R. Pseudomonas panipatensis sp. nov., isolated from an oil-contaminated site. Int J Syst Evol Microbiol 2008; 58:1339-45. [DOI: 10.1099/ijs.0.65401-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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