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Mittal N, Bhardwaj J, Verma S, Singh RK, Yadav R, Kaur D, Talukdar A, Yadav N, Kumar R. Disentangling potential genotypes for macro and micro nutrients and polymorphic markers in Chickpea. Sci Rep 2023; 13:10731. [PMID: 37400481 DOI: 10.1038/s41598-023-37602-2] [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] [Received: 11/22/2021] [Accepted: 06/23/2023] [Indexed: 07/05/2023] Open
Abstract
The present investigation was conducted to assess the nutritional diverseness and identify novel genetic resources to be utilized in chickpea breeding for macro and micro nutrients. The plants were grown in randomized block design. Nutritional and phytochemical properties of nine chickpea genotypes were estimated. The EST sequences from NCBI database were downloaded in FASTA format, clustered into contigs using CAP3, mined for novel SSRs using TROLL analysis and primer pairs were designed using Primer 3 software. Jaccard's similarity coefficients were used to compare the nutritional and molecular indexes followed by dendrograms construction employing UPGMA approach. The genotypes PUSA-1103, K-850, PUSA-1108, PUSA-1053 and the EST-SSR markers including the 5 newly designed namely ICCeM0012, ICCeM0049, ICCeM0067, ICCeM0070, ICCeM0078, SVP55, SVP95, SVP96, SVP146, and SVP217 were found as potential donor/marker resources for the macro-micro nutrients. The genotypes differed (p < 0.05) for nutritional properties. Amongst newly designed primers, 6 were found polymorphic with median PIC (0.46). The alleles per primer ranged 1 to 8. Cluster analysis based on nutritional and molecular diversities partially matched to each other in principle. The identified novel genetic resources may be used to widen the germplasm base, prepare maintainable catalogue and identify systematic blueprints for future chickpea breeding strategies targeting macro-micro nutrients.
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Affiliation(s)
- Neha Mittal
- Department of Biotechnology, Meerut Institute of Engineering & Technology, Meerut, 250005, India
| | - Juhi Bhardwaj
- Department of Biotechnology, Meerut Institute of Engineering & Technology, Meerut, 250005, India
| | - Shruti Verma
- NCoE-SAM, Department of Pediatrics, KSCH, Lady Hardinge Medical College, New Delhi, 110001, India
| | - Rajesh Kumar Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Renu Yadav
- AIOA, Amity University, Noida, UP, 201313, India
| | - D Kaur
- Centre for Food Technology, University of Allahabad, Prayagraj, UP, 211002, India
| | - Akshay Talukdar
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Neelam Yadav
- Centre for Food Technology, University of Allahabad, Prayagraj, UP, 211002, India
| | - Rajendra Kumar
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
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Singla S, Kaur S, Chopra A, Jindal A, Kaur D, Kaur N. In vitro Anthelmintic Activity of Three Vegetative Herbs. J Young Pharm 2022. [DOI: 10.5530/jyp.2022.14.79] [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: 11/23/2022] Open
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3
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Chennamsetty EP, Jain A, Kaur D, Meinia SK, Negi G, Agarwal S, Deb J. Life-saving transfusion in autoimmune hemolytic anemia: a case report and procedure review of the dilution method. Immunohematology 2022; 38:13-16. [PMID: 35852059 DOI: 10.21307/immunohematology-2022-035] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A woman with autoimmune hemolytic anemia (AIHA) presented in the emergency department with life-threatening anemia (hemoglobin 3 g/dL). Exaggeration of preexisting chronic anemia to severe anemia after a recent red blood cell (RBC) transfusion led to suspicion of delayed hemolytic transfusion reaction. Given the urgency for transfusion along with a stronger suspicion for coexistence of an alloantibody, the dilution method proposed by Lawrence Petz and George Garratty was used to find an RBC unit for transfusion. An alloantibody with Fyb specificity was identified, which was masked by the coexistent autoantibody. This method is based on the assumption that the titers of an alloantibody are higher than that of autoantibody. Diluting the autoantibody would reveal the alloantibody and, for this purpose, a serial doubling dilution of serum is performed. This method has an important limitation of missing any alloantibodies with titers less than that of the autoantibody. In spite of this, this method may be of use at a resource-poor setting, where trained personnel and other reagents intended for advanced immunohematology methods are unavailable.
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Affiliation(s)
- E P Chennamsetty
- Department of Transfusion Medicine, All India Institute of Medical Sciences, Virbhadra Road, Rishikesh-249201, India
| | - A Jain
- Department of Transfusion Medicine, All India Institute of Medical Sciences, Rishikesh, India
| | - D Kaur
- Department of Transfusion Medicine, All India Institute of Medical Sciences, Rishikesh, India
| | - S K Meinia
- Department of Transfusion Medicine, All India Institute of Medical Sciences, Rishikesh, India
| | - G Negi
- Department of Transfusion Medicine, All India Institute of Medical Sciences, Rishikesh, India
| | - S Agarwal
- Department of Transfusion Medicine, All India Institute of Medical Sciences, Rishikesh, India
| | - J Deb
- Department of Transfusion Medicine, All India Institute of Medical Sciences, Rishikesh, India
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HAPANI N, D'Cruz S, Dimri K, Kaur D. POS-016 INCIDENCE OF ACUTE KIDNEY INJURY IN PATIENTS RECEIVING CISPLATIN AND CARBOPLATIN AND TO EVALUATE ASSOCIATED RISK FACTORS FOR ACUTE KIDNEY INJURY. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.024] [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] Open
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5
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Kataria P, Dang G, Kaur D, Singh P, Gupta VP. TAM Model for E-Health Implementation in Rural Areas of Uttarakhand, Post Covid-19 Pandemic. APJHM 2021. [DOI: 10.24083/apjhm.v16i3.967] [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] [Indexed: 11/23/2022] Open
Abstract
Objective: The present study aim to find out the factors that has an influence and impacts the actual use of e-Health during post COVID-19 pandemic on the lines of TAM (technology acceptance model) and further suggest ways for effective implementation and adoption of e-Health by the rural patients.
Design & Setting: The study was conducted on a total of 243 rural patients who had experienced e-Health services. Structural Equation Modeling has been used for analysis of data.
Results: The analysis revealed that ‘perceived usefulness’, ‘perceived ease of use’, ‘privacy’ and ‘trust’, all had considerable impact on the ‘intention to use’ which further significantly impacts the ‘actual use’.
Conclusion: Using in-depth interviews, both patients and physicians, practice of evidence-based e-Health interventions was identified for effective implementation and adoption of e-Health, which further helps to provides an equitable healthcare services to both urban and rural population.
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Shukla S, Kushwaha R, Singh M, Saroj R, Puranik V, Agarwal R, Kaur D. Quantification of bioactive compounds in guava at different ripening stages. Food Res 2021. [DOI: 10.26656/fr.2017.5(3).554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Guava (Psidium guajava L.) is one of the most important tropical fruits belonging to
the genus Psidium and the Myrtaceae family and claim to have phenolic compounds
that have been reported to possess strong antioxidant activity. This study was aimed to
evaluate the bioactive constituents in guava cultivars at different ripening stages by
HPLC. The five guava cultivars were selected at different ripening stages and the
bioactive components were analysed by high-pressure liquid chromatography. The
quantification of bioactive compounds revealed that the highest amount of bioactive
compounds was found in cultivar Safeda at the unripe stage, while a minimum amount
was found in ripe Apple Colour guava cultivar. The six bioactive compounds were
quantified in the range of gallic acid (9.46-63.08 mg/100 g), quercetin (0.11-2.51
mg/100 g), myrcetin (0.09-0.034 mg/100 g), ascorbic acid (7.45-75.07 mg/100 g),
apegenin (0.01-0.032 mg/100 g) and lycopene (0.34-0.92 mg/100 g). The exploratory
evaluation of guava samples was performed through Principal Component Analysis
(PCA), the bioactive compounds, lycopene, myricetin, and quercetin are dominant
variables on this PC1 (61.52%) (Scores better than 0.7), thereby causing greater
variability among these samples. The second principal component (PC2) represents
16.54% of the total variance and the ascorbic acid, gallic acid and apeginin (score
better than 0.7), are the dominant variables on this PC.
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Kaur D, Shri R, Kamboj A. Bioactivity-directed isolation, characterization, and quantification of an anxiolytic flavonoid from Brassica oleracea L. J Food Biochem 2021; 45:e13608. [PMID: 33660867 DOI: 10.1111/jfbc.13608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 12/09/2020] [Accepted: 12/16/2020] [Indexed: 11/27/2022]
Abstract
Brassica oleracea L. or Broccoli, is known for its numerous health benefits attributed to the rich array of phytochemicals. Our earlier study showed the hydroalcoholic extract of Broccoli had significant antianxiety activity. The present study involved bioactivity-directed fractionation of the active extract with the aim of separating the constituent responsible for the activity. The bioactive extract was fractionated by column chromatography. The antianxiety activity of the obtained fractions and sub-fractions was evaluated using the elevated plus maze model in mice. It led to the isolation of the bioactive compound. The antianxiety effect was confirmed by hole-board test and mirror chamber test. Structure of the compound was characterized by UV, IR, 1 H NMR, 13 C NMR, MS techniques, and was found to be kaempferol-3-O-β-D-glucoside. The content of kaempferol-3-O-β-D-glucoside in florets of B. oleracea was determined by HPTLC. It was found to be present to the extent of 0.061% w/w. PRACTICAL APPLICATIONS: Anxiety disorders cause immense suffering worldwide and hence search for safe and effective antianxiety drugs has become important area of research. Most commonly and widely prescribed drugs for anxiety that is, benzodiazepines may cause many adverse effects such as drowsiness, confusion, dizziness etc. They also cause physical dependence and withdrawal symptoms. Flavonoids, and their semi-synthetic derivatives, moreover, do not cause any such side effects unlike benzodiazepines. Broccoli or Brassica oleracea is reported to contain a number of flavonoids like quercetin, kaempferol, and their derivatives. In the present investigation, bioactivity-guided isolation showed that the antianxiety activity of B. oleracea is due to kaempferol-3-O-β-D-glucoside, a compound which has been earlier reported to be present in B. oleracea. Hence, after detailed investigation this compound can be developed into a potential antianxiety drug.
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Affiliation(s)
- Divneet Kaur
- Department of Pharmacognosy, G.H.G Khalsa College of Pharmacy, Gurusar Sadhar, Ludhiana, India
| | - Richa Shri
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India
| | - Anjoo Kamboj
- Department of Pharmaceutical Chemistry, Chandigarh College of Pharmacy, Landran, Mohali, India
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Gopie F, Commiesie E, Baldi S, Kamst M, Kaur D, de Lange W, Pinas P, Stijnberg D, Wongsokarijo M, Zijlmans C, de Zwaan R, van Soolingen D, Vreden S, de Vries G. Should treatment of low-level rifampicin mono-resistant tuberculosis be different? J Clin Tuberc Other Mycobact Dis 2021; 23:100222. [PMID: 33598570 PMCID: PMC7869001 DOI: 10.1016/j.jctube.2021.100222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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] [Indexed: 11/30/2022] Open
Abstract
Background Rifampicin resistant tuberculosis (RR-TB) was frequently detected in Suriname after the introduction of Xpert MTB/RIF in 2012. Subsequent phenotypic drug-susceptibility testing (DST) was not conclusive at that moment, while RR-TB patients treated with first-line tuberculostatics had good treatment outcome. In our study, we analysed this interesting observation. Methods We collected demographic and clinical characteristics and treatment outcome of TB patients from May 2012-December 2018 and performed a univariate and multivariate analysis to assess possible associations with resistance to rifampicin. Secondly, we conducted whole genome sequencing on all available Mycobacterium tuberculosis isolates that had a rifampicin resistance in the Xpert MTB/RIF test and performed phenotypic DST on selected isolates. Findings RR-TB was detected in 59 (9.6%) patients confirmed by Xpert. These patients were treated with rifampicin-containing regimens in most (88%) of the cases. In all 32 samples examined, a D435Y mutation in the rpoB gene was identified; only one isolate revealed an additional isoniazid mutation. Phenotypic DST indicated low-level rifampicin resistance. In multivariate analysis, the Creole ethnicity was a factor associated with rifampicin resistance (aOR 3.5; 95%CI 1.9–6.4). The treatment success rate for patients with RR-TB (78.0%) was comparable to the treatment outcome in non-RR-TB patients 77.8%. Interpretation This study confirms a low-level rifampicin mono-resistance in TB patients of Suriname. These patients could benefit from a first-line regimen with high dose rifampicin (or rifabutin), rather than from the lengthy treatment regimens for rifampicin-resistant and multi-drug resistant TB, a concept of stratified medicine also advocated for the treatment of TB. Funding None.
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Affiliation(s)
- F.A. Gopie
- Academic Hospital Paramaribo, Paramaribo, Suriname
- Faculty of Medical Sciences, Anton de Kom University of Suriname, Paramaribo, Suriname
- Corresponding author at: Academic Hospital Paramaribo, Paramaribo, Suriname.
| | - E. Commiesie
- National Tuberculosis Program, Paramaribo, Suriname
| | - S. Baldi
- Central Laboratory, Paramaribo, Suriname
| | - M. Kamst
- National Tuberculosis Reference Laboratory, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - D. Kaur
- Massachusetts Supranational TB Reference Laboratory, University of Massachusetts Medical School, Jamaica Plane, MA, USA
| | - W.C.M. de Lange
- Department Pulmonary Diseases and Tuberculosis, University Medical Center Groningen, the Netherlands
| | - P.S. Pinas
- Central Laboratory, Paramaribo, Suriname
| | - D. Stijnberg
- National Tuberculosis Program, Paramaribo, Suriname
| | | | - C.W.R. Zijlmans
- Faculty of Medical Sciences, Anton de Kom University of Suriname, Paramaribo, Suriname
| | - R. de Zwaan
- National Tuberculosis Reference Laboratory, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - D. van Soolingen
- National Tuberculosis Reference Laboratory, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | | | - G. de Vries
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
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9
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Fromont C, Atzori A, Kaur D, Hashmi L, Greco G, Cabanillas A, Nguyen HV, Jones DH, Garzón M, Varela A, Stevenson B, Iacobini GP, Lenoir M, Rajesh S, Box C, Kumar J, Grant P, Novitskaya V, Morgan J, Sorrell FJ, Redondo C, Kramer A, Harris CJ, Leighton B, Vickers SP, Cheetham SC, Kenyon C, Grabowska AM, Overduin M, Berditchevski F, Weston CJ, Knapp S, Fischer PM, Butterworth S. Discovery of Highly Selective Inhibitors of Calmodulin-Dependent Kinases That Restore Insulin Sensitivity in the Diet-Induced Obesity in Vivo Mouse Model. J Med Chem 2020; 63:6784-6801. [PMID: 32433887 PMCID: PMC7445743 DOI: 10.1021/acs.jmedchem.9b01803] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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] [Indexed: 12/19/2022]
Abstract
![]()
Polymorphisms
in the region of the calmodulin-dependent kinase
isoform D (CaMK1D) gene are associated with increased incidence of
diabetes, with the most common polymorphism resulting in increased
recognition by transcription factors and increased protein expression.
While reducing CaMK1D expression has a potentially beneficial effect
on glucose processing in human hepatocytes, there are no known selective
inhibitors of CaMK1 kinases that can be used to validate or translate
these findings. Here we describe the development of a series of potent,
selective, and drug-like CaMK1 inhibitors that are able to provide
significant free target cover in mouse models and are therefore useful
as in vivo tool compounds. Our results show that
a lead compound from this series improves insulin sensitivity and
glucose control in the diet-induced obesity mouse model after both
acute and chronic administration, providing the first in vivo validation of CaMK1D as a target for diabetes therapeutics.
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Affiliation(s)
- Christophe Fromont
- Centre for Biomolecular Sciences and School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Alessio Atzori
- Centre for Biomolecular Sciences and School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Divneet Kaur
- Centre for Biomolecular Sciences and School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Lubna Hashmi
- Centre for Biomolecular Sciences and School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Graziella Greco
- School of Pharmacy, College of Medical and Dental Sciences, University of Birmingham, Edgbaston B15 2TT, U.K
| | - Alejandro Cabanillas
- School of Pharmacy, College of Medical and Dental Sciences, University of Birmingham, Edgbaston B15 2TT, U.K
| | - Huy Van Nguyen
- School of Pharmacy, College of Medical and Dental Sciences, University of Birmingham, Edgbaston B15 2TT, U.K
| | - D Heulyn Jones
- Division of Pharmacy and Optometry, School of Health Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PL, U.K
| | - Miguel Garzón
- Division of Pharmacy and Optometry, School of Health Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PL, U.K
| | - Ana Varela
- Division of Pharmacy and Optometry, School of Health Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PL, U.K
| | - Brett Stevenson
- Sygnature Discovery, BioCity, Pennyfoot Street, Nottingham NG1 1GF, U.K
| | - Greg P Iacobini
- Sygnature Discovery, BioCity, Pennyfoot Street, Nottingham NG1 1GF, U.K
| | - Marc Lenoir
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Sundaresan Rajesh
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Clare Box
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Jitendra Kumar
- Department of Biochemistry, University of Alberta, Edmonton, Alberta T6G 2H7, Canada
| | - Paige Grant
- Department of Biochemistry, University of Alberta, Edmonton, Alberta T6G 2H7, Canada
| | - Vera Novitskaya
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Juliet Morgan
- Sygnature Discovery, BioCity, Pennyfoot Street, Nottingham NG1 1GF, U.K
| | - Fiona J Sorrell
- Structural Genomics Consortium and Target Discovery Institute, Nuffield Department of Clinical Medicine, University of Oxford, Old Road Campus Research Building, Oxford OX3 7DQ, U.K
| | - Clara Redondo
- Structural Genomics Consortium and Target Discovery Institute, Nuffield Department of Clinical Medicine, University of Oxford, Old Road Campus Research Building, Oxford OX3 7DQ, U.K
| | - Andreas Kramer
- Structural Genomics Consortium and Buchmann Institute for Molecular Life Sciences, Institute for Pharmaceutical Chemistry, Johann Wolfgang Goethe-University, Max-von-Laue-Straße 9, 60438 Frankfurt am Main, Germany
| | - C John Harris
- CJH Consultants, Ford Cottage, South Weirs, Burley Road, Brockenhurst, Hants SO42 7UQ, U.K
| | - Brendan Leighton
- The Research Network, IPC 600 Discovery Park, Ramsgate Road, Sandwich CT13 9NJ, U.K
| | - Steven P Vickers
- RenaSci Limited, BioCity, Pennyfoot Street, Nottingham NG1 1GF, U.K
| | | | - Colin Kenyon
- DST/NRF Centre of Excellence for Biomedical Tuberculosis Research, SAMRC Centre for Molecular and Cellular Biology, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town 8000, South Africa
| | - Anna M Grabowska
- Ex Vivo Cancer Pharmacology Centre of Excellence, Cancer Biology, Division of Cancer and Stem Cells, School of Medicine, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Michael Overduin
- Department of Biochemistry, University of Alberta, Edmonton, Alberta T6G 2H7, Canada
| | - Fedor Berditchevski
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Chris J Weston
- Centre for Liver Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, B15 2TT, U.K.,NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, B15 2TT, U.K
| | - Stefan Knapp
- Structural Genomics Consortium and Buchmann Institute for Molecular Life Sciences, Institute for Pharmaceutical Chemistry, Johann Wolfgang Goethe-University, Max-von-Laue-Straße 9, 60438 Frankfurt am Main, Germany
| | - Peter M Fischer
- Centre for Biomolecular Sciences and School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Sam Butterworth
- Division of Pharmacy and Optometry, School of Health Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PL, U.K
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Feldsine PT, Jucker MT, Kaur M, Lienau AH, Kerr DE, Adamson A, Beaupre L, Bishop J, Casasola E, Cote C, Desilets S, D’lima C, Elahimanesh P, Fitzgerald S, Forgey R, Fortin J, Gohil V, Griffin J, Hardin M, Kaur D, Ketrenos J, King A, Kupski B, Luce S, Lucia L, Maeda S, Markun D, Marquez-Gonzalez M, McClendon J, McKessock J, Nelson C, Nguyen T, O’Brien C, Ramos M, Reilly S, Roa N, Schiffelbein Z, Shaffer K, Shepherd D, Sowell S, Trujillo E, Wang S, Williams K. Evaluation of the Assurance GDS® for Salmonella Method in Foods and Environmental Surfaces: Multilaboratory Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/93.1.150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
A multilaboratory collaborative study was conducted to compare the detection of Salmonella by the Assurance GDS® for Salmonella method and the Reference culture methods. Six foods, representing a variety of low microbial and high microbial load foods were analyzed. Seventeen laboratories in the United States and Canada participated in this study. No statistical differences (P < 0.05) were observed between the Assurance GDS for Salmonella and the Reference culture methods for any inoculation level of any food type or naturally contaminated food, except for pasta, for which the Assurance GDS method had a higher number of confirmed test portions for Salmonella compared to the Reference method.
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Affiliation(s)
| | - Markus T Jucker
- BioControl Systems, Inc., 12822 SE 32nd St, Bellevue, WA 98005
| | - Mandeep Kaur
- BioControl Systems, Inc., 12822 SE 32nd St, Bellevue, WA 98005
| | - Andrew H Lienau
- BioControl Systems, Inc., 12822 SE 32nd St, Bellevue, WA 98005
| | - David E Kerr
- BioControl Systems, Inc., 12822 SE 32nd St, Bellevue, WA 98005
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11
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McMahon WA, Aleo VA, Schultz AM, Horter BL, Lindberg KG, Allen M, Anderson L, Barnes R, Bellow S, Bokina C, Boulter T, Caulkins L, Ceizyk M, Chavey C, Eastep Y, Gohil V, Guha S, Hall G, Hopkins K, Horter B, Kaufer A, Kaur D, Kim S, Kupski B, Lee J, Lester; T, Musch S, Silbernagel K, Sorce L, Steiner G, Sumpter R, Sutton J, Veach J. 3M™ Petrifilm™ Staph Express Count Plate Method for the Enumeration of Staphylococcus aureus in Selected Types of Meat, Seafood, and Poultry: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/86.5.947] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The 3M™ Petrifilm™ Staph Express Count plate method was compared with AOAC Official Method 975.55 for the enumeration of Staphylococcus aureus in selected foods. Four foods—cooked, diced chicken; cured ham; smoked salmon; and pepperoni—were analyzed for S. aureus by 12 collaborating laboratories. For each food tested, the collaborators received 8 blind test samples consisting of a control sample, a low inoculation level, a medium inoculation level, and a medium inoculation level with background flora, each in duplicate. The mean log10 counts for the methods were comparable for all 4 foods. The repeatability and reproducibility variances of the 24 h Petrifilm Staph Express Count plate method were similar to those of the 72 h standard method.
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Affiliation(s)
- Wendy A McMahon
- Silliker, Inc., Research Center, 160 Armory Dr, South Holland, IL 60473
| | - Victoria A Aleo
- Silliker, Inc., Research Center, 160 Armory Dr, South Holland, IL 60473
| | - Ann M Schultz
- Silliker, Inc., Research Center, 160 Armory Dr, South Holland, IL 60473
| | - Barbara L Horter
- 3M Microbiology, 3M Center, Bldg 260-6B-01, St. Paul, MN 55144-1000
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12
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Kaur D, Kumar G, Kumar Singh A. Rehabilitative experience with motor imagery in progressive supranuclear palsy - A case report. Parkinsonism Relat Disord 2018. [DOI: 10.1016/j.parkreldis.2017.11.290] [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: 11/30/2022]
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Kaur D, Mathew S, Nair CGS, Begum A, Jainanarayan AK, Sharma M, Brahmachari SK. Structure based drug discovery for designing leads for the non-toxic metabolic targets in multi drug resistant Mycobacterium tuberculosis. J Transl Med 2017; 15:261. [PMID: 29268770 PMCID: PMC5740895 DOI: 10.1186/s12967-017-1363-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 12/08/2017] [Indexed: 01/09/2023] Open
Abstract
Background The problem of drug resistance and bacterial persistence in tuberculosis is a cause of global alarm. Although, the UN’s Sustainable Development Goals for 2030 has targeted a Tb free world, the treatment gap exists and only a few new drug candidates are in the pipeline. In spite of large information from medicinal chemistry to ‘omics’ data, there has been a little effort from pharmaceutical companies to generate pipelines for the development of novel drug candidates against the multi drug resistant Mycobacterium tuberculosis. Methods In the present study, we describe an integrated methodology; utilizing systems level information to optimize ligand selection to lower the failure rates at the pre-clinical and clinical levels. In the present study, metabolic targets (Rv2763c, Rv3247c, Rv1094, Rv3607c, Rv3048c, Rv2965c, Rv2361c, Rv0865, Rv0321, Rv0098, Rv0390, Rv3588c, Rv2244, Rv2465c and Rv2607) in M. tuberculosis, identified using our previous Systems Biology and data-intensive genome level analysis, have been used to design potential lead molecules, which are likely to be non-toxic. Various in silico drug discovery tools have been utilized to generate small molecular leads for each of the 15 targets with available crystal structures. Results The present study resulted in identification of 20 novel lead molecules including 4 FDA approved drugs (droxidropa, tetroxoprim, domperidone and nemonapride) which can be further taken for drug repurposing. This comprehensive integrated methodology, with both experimental and in silico approaches, has the potential to not only tackle the MDR form of Mtb but also the most important persister population of the bacterium, with a potential to reduce the failures in the Tb drug discovery. Conclusion We propose an integrated approach of systems and structural biology for identifying targets that address the high attrition rate issue in lead identification and drug development We expect that this system level analysis will be applicable for identification of drug candidates to other pathogenic organisms as well. Electronic supplementary material The online version of this article (10.1186/s12967-017-1363-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Divneet Kaur
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Shalu Mathew
- Centre for Open Innovation-Indian Centre for Social Transformation, Bengaluru, Karnataka, India
| | - Chinchu G S Nair
- Centre for Open Innovation-Indian Centre for Social Transformation, Bengaluru, Karnataka, India
| | - Azitha Begum
- Centre for Open Innovation-Indian Centre for Social Transformation, Bengaluru, Karnataka, India
| | - Ashwin K Jainanarayan
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India.,Indian Institute of Science Education and Research (IISER), Mohali, India
| | - Mukta Sharma
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Samir K Brahmachari
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India. .,Centre for Open Innovation-Indian Centre for Social Transformation, Bengaluru, Karnataka, India. .,Academy of Scientific and Innovative Research, New Delhi, India. .,CSIR-Open Source Drug Discovery Unit, New Delhi, India.
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Eswaran SV, Kaur D, Jana K, Khamaru K, Prabhakar S, Raghunathan P, Ganguly B. Nitrene insertion into an adjacent o -methoxy group followed by nucleophilic addition to the heterocumulene intermediate: Experimental and computational studies. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.024] [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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Gupta P, Huria A, Kaur D, Mehra R. Caesarian Scar Pregnancy- a Diagnostic Dilemma. JNMA J Nepal Med Assoc 2016; 54:88-90. [PMID: 27935931] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
Caesarean scar pregnancy is one of the rarest forms of ectopic pregnancy. Transvaginal ultrasound and color flow Doppler provides a high diagnostic accuracy. A delay in diagnosis and treatment can lead to uterine rupture, major hemorrhage, hysterectomy and serious maternal morbidity and mortality. Early diagnosis can offer treatment options of avoiding uterine rupture and hemorrhage, thus preserving the uterus and future fertility. Primary health care provider should know about this rare entity, because if diagnosed timely, and referral to specialized centre is done without delay will definitely save maternal morbidity and mortality. Management plan should be individualized. Termination of pregnancy is the treatment of choice in the first trimester. Expectant treatment has a poor prognosis because of risk of rupture. In this case report we aim to discuss the associated diagnostic dilemma, most appropriate methods of diagnosis and management, with their implications in clinical practice.
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Affiliation(s)
- P Gupta
- Department of Gynecology and Obstetrics, Post Graduate Institute of Medical Sciences and Research, ESIC, Basaidarapur, New Delhi,India
| | - A Huria
- Department of Gynecology and Obstetrics, Government Medical College & Hospital, Chandigarh, India
| | - D Kaur
- Department of Gynecology and Obstetrics, Government Medical College & Hospital, Chandigarh, India
| | - R Mehra
- Department of Gynecology and Obstetrics, Post Graduate Institute of Medical Sciences and Research, ESIC, Basaidarapur, New Delhi,India
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Eswaran SV, Kaur D, Khamaru K, Prabhakar S, Sony T, Raghunathan P, Ganguly B. Tuning the strain effect to induce selectivity through intramolecular nitrene insertion into an adjacent methoxy C H bond leading to form a new benzoxazole: experimental and computational studies. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.061] [Citation(s) in RCA: 2] [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: 11/30/2022]
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18
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Sahoo S, Kaur D, Sethi A, Chandrahas, Saini A, Chandra M. Effect of Dietary Supplementation of Yucca schidigera Extract on the Performance and Litter Quality of Broilers in Winter Season. ANIM NUTR FEED TECHN 2016. [DOI: 10.5958/0974-181x.2016.00043.3] [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: 10/20/2022]
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Sheetal, Nehra K, Kaushal R, Arora S, Kaur D, Kaushal R. Octahedral titanium(IV) complexes with five novel hydroximic acid ligands: Synthesis, spectroscopic characterization, and in vitro activities on IMR-32 and CHO cell lines and ten bacterial strains. RUSS J GEN CHEM+ 2016. [DOI: 10.1134/s1070363216010242] [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]
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Ganai A, Parveen S, Kaur D, Katoch R, Yadav A, Godara R, Ahamed I. Incidence of Buxtonella sulcata in bovines in R.S. Pura, Jammu. J Parasit Dis 2015; 39:446-7. [PMID: 26345049 DOI: 10.1007/s12639-013-0363-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 06/03/2013] [Accepted: 10/07/2013] [Indexed: 10/26/2022] Open
Abstract
Incidence of Buxtonella sulcata was recorded as 20.9 % in bovines (n = 374) of R.S. Pura, Jammu with cattle showing higher infection rate (23.6 %) than the buffaloes (18.5 %). The infection was significantly (p < 0.0001) higher in young animals (33.1 %) than the adults (13.9 %). Animals with diarrhoeic faeces had a significantly higher (p < 0.0001) infection rate (38.5 %) than the animals with normal faeces (9.9 %), suggesting the influence of protozoan on the incidence of diarrhoeal symptoms in bovines.
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Affiliation(s)
- A Ganai
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, 181 102 Jammu India
| | - S Parveen
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, 181 102 Jammu India
| | - D Kaur
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, 181 102 Jammu India
| | - R Katoch
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, 181 102 Jammu India
| | - Anish Yadav
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, 181 102 Jammu India
| | - R Godara
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, 181 102 Jammu India
| | - I Ahamed
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, 181 102 Jammu India
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Kaur D, Brahmachari S. 194 Designing non-toxic ligands against TB using data intensive genome level analysis. J Biomol Struct Dyn 2015. [DOI: 10.1080/07391102.2015.1032831] [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: 10/23/2022]
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Kaur D, Gomez E, Doe C, Berair R, Woodman L, Saunders R, Hollins F, Rose F, Amrani Y, May R, Kearley J, Humbles A, Cohen E, Brightling C. IL-33 drives airway hyper-responsiveness through IL-13-mediated mast cell: airway smooth muscle crosstalk. Allergy 2015; 70:556-67. [PMID: 25683166 PMCID: PMC4418379 DOI: 10.1111/all.12593] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2015] [Indexed: 12/13/2022]
Abstract
Background Mast cell localization within the airway smooth muscle (ASM)-bundle plays an important role in the development of airway hyper-responsiveness (AHR). Genomewide association studies implicate the ‘alarmin’ IL-33 in asthma, but its role in mast cell–ASM interactions is unknown. Objectives We examined the expression and functional role of IL-33 in bronchial biopsies of patients with and without asthma, ex vivo ASM, mast cells, cocultured cells and in a mouse model system. Methods IL-33 protein expression was assessed in human bronchial tissue from 9 healthy controls, and 18 mild-to-moderate and 12 severe asthmatic patients by immunohistochemistry. IL-33 and ST2 mRNA and protein expression in human-derived ASM, epithelial and mast cells were assessed by qPCR, immunofluorescence and/or flow cytometry and ELISA. Functional assays were used to assess calcium signalling, wound repair, proliferation, apoptosis and contraction. AHR and inflammation were assessed in a mouse model. Results Bronchial epithelium and ASM expressed IL-33 with the latter in asthma correlating with AHR. ASM and mast cells expressed intracellular IL-33 and ST2. IL-33 stimulated mast cell IL-13 and histamine secretion independent of FcεR1 cross-linking and directly promoted ASM wound repair. Coculture of mast cells with ASM activated by IL-33 increased agonist-induced ASM contraction, and in vivo IL-33 induced AHR in a mouse cytokine installation model; both effects were IL-13 dependent. Conclusion IL-33 directly promotes mast cell activation and ASM wound repair but indirectly promotes ASM contraction via upregulation of mast cell-derived IL-13. This suggests that IL-33 may present an important target to modulate mast cell–ASM crosstalk in asthma.
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Affiliation(s)
- D. Kaur
- Institute for Lung Health; Department of Infection, Immunity and Inflammation; University of Leicester; Leicester UK
| | - E. Gomez
- Institute for Lung Health; Department of Infection, Immunity and Inflammation; University of Leicester; Leicester UK
| | - C. Doe
- Institute for Lung Health; Department of Infection, Immunity and Inflammation; University of Leicester; Leicester UK
| | - R. Berair
- Institute for Lung Health; Department of Infection, Immunity and Inflammation; University of Leicester; Leicester UK
| | - L. Woodman
- Institute for Lung Health; Department of Infection, Immunity and Inflammation; University of Leicester; Leicester UK
| | - R. Saunders
- Institute for Lung Health; Department of Infection, Immunity and Inflammation; University of Leicester; Leicester UK
| | - F. Hollins
- Institute for Lung Health; Department of Infection, Immunity and Inflammation; University of Leicester; Leicester UK
| | - F.R. Rose
- Division of Drug Delivery and Tissue Engineering, Centre for Biomolecular Sciences, School of Pharmacy; University of Nottingham UK
| | - Y. Amrani
- Institute for Lung Health; Department of Infection, Immunity and Inflammation; University of Leicester; Leicester UK
| | - R. May
- MedImmune Ltd; Cambridge UK
| | | | | | | | - C.E. Brightling
- Institute for Lung Health; Department of Infection, Immunity and Inflammation; University of Leicester; Leicester UK
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Godara R, Parveen S, Katoch R, Yadav A, Katoch M, Khajuria JK, Kaur D, Ganai A, Verma PK, Khajuria V, Singh NK. Acaricidal activity of ethanolic extract of Artemisia absinthium against Hyalomma anatolicum ticks. Exp Appl Acarol 2015; 65:141-148. [PMID: 25039005 DOI: 10.1007/s10493-014-9843-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 07/13/2014] [Indexed: 06/03/2023]
Abstract
The aim of the study was to evaluate the in vitro efficacy of different concentrations of ethanolic extract obtained from the aerial parts of Artemisia absinthium in comparison to amitraz on adults, eggs and larvae of Hyalomma anatolicum using the adult immersion test (AIT), egg hatchability test and larval packet test (LPT), respectively. Four concentrations of the extract (2.5, 5, 10 and 20%) with three replications for each concentration were used in all the bioassays. In AIT, the mortality rates at 2.5, 5 and 10% were significantly different (p < 0.05) in comparison to the control group; however, at 20%, it was similar to the positive control group. Maximum mortality of 86.7% was recorded at 20%. The LC50 and LC95 values were calculated as 6.51 and 55.43%, respectively. The oviposition was reduced significantly by 36.8 and 59.1% at concentrations of 10 and 20%, respectively. Egg hatchability was reduced significantly at all concentrations (2.5-20%) in comparison to the control. In LPT, the extract caused 100% mortality of larvae at all the concentrations after 24 h. The results show that ethanolic extract obtained from the aerial parts of A. absinthium has acaricidal properties and could be useful in controlling H. anatolicum.
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Affiliation(s)
- R Godara
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, Jammu, 181 102, India
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Ghildiyal R, Kaur D, Ajinkya S. Pathways to Psychiatric Care. MGM Journal of Medical Sciences 2014. [DOI: 10.5005/jp-journals-10036-1023] [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: 11/23/2022] Open
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Singh SR, Sutcliffe A, Kaur D, Gupta S, Desai D, Saunders R, Brightling CE. CCL2 release by airway smooth muscle is increased in asthma and promotes fibrocyte migration. Allergy 2014; 69:1189-97. [PMID: 24931417 PMCID: PMC4215601 DOI: 10.1111/all.12444] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Asthma is characterized by variable airflow obstruction, airway inflammation, airway hyper-responsiveness and airway remodelling. Airway smooth muscle (ASM) hyperplasia is a feature of airway remodelling and contributes to bronchial wall thickening. We sought to investigate the expression levels of chemokines in primary cultures of ASM cells from asthmatics vs healthy controls and to assess whether differentially expressed chemokines (i) promote fibrocyte (FC) migration towards ASM and (ii) are increased in blood from subjects with asthma and in sputum samples from those asthmatics with bronchial wall thickening. METHODS Chemokine concentrations released by primary ASM were measured by MesoScale Discovery platform. The chemokine most highly expressed by ASM from asthmatics compared with healthy controls was confirmed by ELISA, and expression of its cognate chemokine receptor by FCs was examined by immunofluorescence and flow cytometry. The role of this chemokine in FC migration towards ASM was investigated by chemotaxis assays. RESULTS Chemokine (C-C motif) ligand 2 (CCL2) levels were increased in primary ASM supernatants from asthmatics compared with healthy controls. CCR2 was expressed on FCs. Fibrocytes migrated towards recombinant CCL2 and ASM supernatants. These effects were inhibited by CCL2 neutralization. CCL2 levels were increased in blood from asthmatics compared with healthy controls, and sputum CCL2 was increased in asthmatics with bronchial wall thickening. CONCLUSIONS Airway smooth muscle-derived CCL2 mediates FC migration and potentially contributes to the development of ASM hyperplasia in asthma.
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Affiliation(s)
- S R Singh
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of LeicesterLeicester, UK
| | - A Sutcliffe
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of LeicesterLeicester, UK
| | - D Kaur
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of LeicesterLeicester, UK
| | - S Gupta
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of LeicesterLeicester, UK
| | - D Desai
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of LeicesterLeicester, UK
| | - R Saunders
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of LeicesterLeicester, UK
| | - C E Brightling
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of LeicesterLeicester, UK
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Kaur D, Luk HL, Coldren W, Srinivas PM, Sridhar L, Prabhakar S, Raghunathan P, Guru Row TN, Hadad CM, Platz MS, Eswaran SV. Concomitant nitrene and carbene insertion accompanying ring expansion: spectroscopic, X-ray, and computational studies. J Org Chem 2014; 79:1199-205. [PMID: 24410290 DOI: 10.1021/jo402621w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reinvestigation of the thermolysis of azido-meta-hemipinate (I) yielded, in addition to known II, unusual products III and IV. These products are formed via a rare intramolecular nitrene insertion into an adjacent methoxy C-H bond followed by an intermolecular reaction during a ring-expansion and a ring-extrusion reaction followed by a carbene insertion. The structures of the new compounds were confirmed using a battery of techniques, including HRMS (ESI-QTOF) and 2D NMR as well as X-ray crystallography for compound IV. Density functional theory methods were used to support the proposed mechanism of formation of the products.
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Affiliation(s)
- Divneet Kaur
- St. Stephen's College, University of Delhi , Delhi 110007, India
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Gupta R, Kaur D, Chopra S, Nagra S, Rai D, Patil R. Performance analysis of the broiler chicks under different cooling devices during hot-dry summer. INDIAN J ANIM RES 2014. [DOI: 10.5958/0976-0555.2014.00015.6] [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: 10/24/2022]
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Godara R, Parveen S, Katoch R, Yadav A, Verma PK, Katoch M, Kaur D, Ganai A, Raghuvanshi P, Singh NK. Acaricidal activity of extract of Artemisia absinthium against Rhipicephalus sanguineus of dogs. Parasitol Res 2013; 113:747-54. [PMID: 24288053 DOI: 10.1007/s00436-013-3704-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [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: 08/17/2013] [Accepted: 11/13/2013] [Indexed: 12/19/2022]
Abstract
The objective of the study was to evaluate the in vitro efficacy of different concentrations of chloroform extract obtained from the aerial parts of Artemisia absinthium in comparison to amitraz on adults, eggs and larvae of the dog tick Rhipicephalus sanguineus using the adult immersion test (AIT), egg hatchability test (EHT) and larval packet test (LPT), respectively. Five concentrations of the extract (1.25, 2.5, 5, 10 and 20 %) with three replications for each concentration were used in all the bioassays. A control group was established (water + dimethylsulphoxide) together with a positive control group (amitraz), with three repetitions each. In AIT, the mortality rates were 0.0, 13.3, 16.7, 33.3 and 93.3 % in concentrations of 1.25, 2.5, 5, 10 and 20 %, respectively, and the variation was significant (p=0.0151). The LC50 (CI) and LC95 (CI) values were calculated as 8.793 % (8.217-9.408) and 34.59 % (29.71-40.26), respectively. The egg production was reduced by 6.6, 6.6, 18.3, 42.5 and 85.1 % in the concentrations of 1.25, 2.5, 5, 10 and 20 %, respectively, and it was statistically significant (p=0.0274). In EHT, hatching was completely inhibited at 5, 10 and 20 % displaying 100 % ovicidal action while at the concentrations of 1.25 and 2.5 %, the inhibition rates were 20 and 60 %, respectively. In LPT, the extract caused 100 % mortality of larvae in the concentrations of 5, 10 and 20 % after 24 h while at the concentrations of 1.25 and 2.5 %, the mortality rates were 54.3 and 96.7 %, respectively. The LC50 (CI) and LC95 (CI) values were determined to be 1.11 % (1.099-1.121) and 2.37 % (2.328-2.423), respectively. The results show that the extract of A. absinthium has acaricidal properties and could be useful in controlling R. sanguineus which is an efficient vector of pathogens both in dogs and humans.
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Affiliation(s)
- R Godara
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, 181 102, Jammu, India
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Kaur D, Ganai A, Parveen S, Borkataki S, Yadav A, Katoch R, Godara R. Occurrence of Setaria digitata in a cow. J Parasit Dis 2013; 39:477-8. [PMID: 26345055 DOI: 10.1007/s12639-013-0376-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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: 07/30/2013] [Accepted: 10/18/2013] [Indexed: 11/26/2022] Open
Abstract
The present investigation reports the occurrence of filarial worm, Setaria digitata, recovered during the surgery of a cow suffering from intussusception. The worms were thread like, milky white, long with tapering ends especially towards the hind end with an average size of 62.8 ± 9.89 mm in length. On examination of anterior end, the cuticular rings surrounding the mouth region with dorsal, ventral and lateral prominences were observed. The posterior end had few spines along with a pair of appendages near the tip of the tail. On the basis of morphological characteristics the worms were identified as female S. digitata.
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Affiliation(s)
- D Kaur
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, Jammu, 181 102 India
| | - A Ganai
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, Jammu, 181 102 India
| | - S Parveen
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, Jammu, 181 102 India
| | - S Borkataki
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, Jammu, 181 102 India
| | - A Yadav
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, Jammu, 181 102 India
| | - R Katoch
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, Jammu, 181 102 India
| | - R Godara
- Division of Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, Jammu, 181 102 India
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Dhakal J, Brah GS, Agrawal RK, Pawar HN, Kaur D, Verma R. Over-expression of gene encoding heat shock protein 70 from Mycobacterium tuberculosis and its evaluation as vaccine adjuvant. Indian J Med Microbiol 2013; 31:123-9. [PMID: 23867667 DOI: 10.4103/0255-0857.115222] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Heat shock proteins (Hsps) are evolutionary ancient and highly conserved molecular chaperons found in prokaryotes as well as eukaryotes. Hsp70 is a predominant member of Hsp family. Microbial Hsp70s (mHsp70s) have acquired special significance in immunity since they have been shown to be potent activators of the innate immune system and generate specific immune responses against tumours and infectious agents. OBJECTIVES The present study was aimed to clone express and purify recombinant Hsp70 from the Mycobacterium tuberculosis and characterise it immunologically. The study also aimed at determining the potential of recombinant M. tuberculosis heat shock protein (rMTB-Hsp70) as adjuvant or antigen carrier. MATERIALS AND METHODS Cloning of M. tuberculosis heat shock protein (MTB-Hsp70) amplicon was carried out using the pGEMT-Easy vector although for expression, pProExHTb prokaryotic expression vector was used. Purification of recombinant Hsp70 was carried out by nickel-nitrilotriacetic acid (Ni-NTA) affinity chromatography. For immunological characterization and determining the adjuvant effect of MTB-Hsp70, BALB/c mice were used. The data obtained was statistically analysed. RESULTS Hsp70 gene was cloned, sequenced and the sequence data were submitted to National Center for Biotechnology Information (NCBI). Recombinant MTB-Hsp70 was successfully over-expressed using the prokaryotic expression system and purified to homogeneity. The protein was found to be immunodominant. Significant adjuvant effect was produced by the rMTB-Hsp70 when inoculated with recombinant outer membrane protein 31; however, effect was less than the conventionally used the Freund's adjuvant. CONCLUSION Protocol standardised can be followed for bulk production of rHsp70 in a cost-effective manner. Significant adjuvant effect was produced by rMTB-Hsp70; however, the effect was than Freund's adjuvant. Further, studies need to be carried out to explore its applicability as carrier of antigen.
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Affiliation(s)
- J Dhakal
- Department of Microbiology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
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31
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Vora A, Kaur D, Chaturvedi H, Nehra A, Anand A, Kabra V, Kadyaprath G, Chaudhary A, Mohindra T, Bora P, Pandey A. Comprehensive geriatric assessment in cancer patients in India: a first effort in a tertiary cancer centre in northern India. J Geriatr Oncol 2013. [DOI: 10.1016/j.jgo.2013.09.125] [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: 11/28/2022]
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Kaur D, Jain M, Dhall U, Singh K. An unusual course of the thoracic duct in relation to the vertebral vessels. Singapore Med J 2012; 53:e1-e2. [PMID: 22252190] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A variation in the course of the thoracic duct was found in the cervical portion of a male cadaver during routine dissection of the head and neck region for undergraduate students. The thoracic duct, while arching laterally above the clavicle, was coursing posterior to the vertebral vein but anterior to the vertebral artery; it normally passes anterior to both the vertebral vein and artery. To the best of our knowledge, this variation in relation to the vertebral vein has not yet been reported. In addition, after coursing posterior to the vertebral vein, the thoracic duct divided into two branches that drained separately, one at the angle between the internal jugular vein and subclavian vein, and the other into the subclavian vein. Knowledge of these variations is essential in order to prevent injury to the thoracic duct while performing surgeries at the root of the neck.
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Affiliation(s)
- D Kaur
- Department of Anatomy, Maharaja Agrasen Medical College, Agroha Hisar, Haryana, India.
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Singh N, Kaur S, Bedi PMS, Kaur D. Anxiolytic effects of Equisetum arvense Linn. extracts in mice. Indian J Exp Biol 2011; 49:352-356. [PMID: 21615059] [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: 05/30/2023]
Abstract
The petroleum ether (PE), chloroform (CH), ethanol (ETH) and water extracts of E. arvense stems were evaluated for anti-anxiety activity in mice using elevated plus maze model. Ketamine induced hypnosis and actophotometer was used to evaluate sedative effect with various extracts in mice. The results were compared with standard drug diazepam. The ethanolic extract of E. arvense (50 and 100 mg/kg) significantly increased the time-spent and the percentage of the open arm entries in the elevated plus-maze model which was comparable to diazepam. Ethanolic extract (100 mg/kg) prolonged the ketamine-induced total sleeping time and decreased the locomotor activity in mice. The results suggest that the ethanolic extract of E. arvense seems to possess anxiolytic effect with lower sedative activity than that of diazepam. The results could be attributed to the flavonoid content of the ethanolic extract.
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Affiliation(s)
- Navdeep Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar 143 005, India
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Kumar R, Kajla B, Kaur D, Wander G. Risk factors for central venous catheter-related infections in cardiac unit of tertiary care hospital in northern India. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.2076] [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] Open
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Kaur D, Hollins F, Saunders R, Woodman L, Sutcliffe A, Cruse G, Bradding P, Brightling C. Airway smooth muscle proliferation and survival is not modulated by mast cells. Clin Exp Allergy 2009; 40:279-88. [PMID: 20030664 PMCID: PMC2821816 DOI: 10.1111/j.1365-2222.2009.03423.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Background Airway smooth muscle (ASM) hyperplasia and mast cell localization within the ASM bundle are important features of asthma. The cause of this increased ASM mass is uncertain and whether it is a consequence of ASM–mast cell interactions is unknown. Objective We sought to investigate ASM proliferation and survival in asthma and the effects of co-culture with mast cells. Methods Primary ASM cultures were derived from 11 subjects with asthma and 12 non-asthmatic controls. ASM cells were cultured for up to 10 days in the presence or absence of serum either alone or in co-culture with the human mast cell line-1, unstimulated human lung mast cells (HLMC) or IgE/anti-IgE-activated HLMC. Proliferation was assessed by cell counts, CFSE assay and thymidine incorporation. Apoptosis and necrosis were analysed by Annexin V/propidium iodide staining using flow cytometry and by assessment of nuclear morphology using immunofluorescence. Mast cell activation was confirmed by the measurement of histamine release. Results Using a number of techniques, we found that ASM proliferation and survival was not significantly different between cells derived from subjects with or without asthma. Co-culture with mast cells did not affect the rate of proliferation or survival of ASM cells. Conclusion Our findings do not support a role for increased airway smooth proliferation and survival as the major mechanism driving ASM hyperplasia in asthma. Cite this as: D. Kaur, F. Hollins, R. Saunders, L. Woodman, A. Sutcliffe, G. Cruse, P. Bradding and C. Brightling, Clinical & Experimental Allergy, 2010 (40) 279– 288.
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Affiliation(s)
- D Kaur
- Department of Infection, Inflammation and Immunity, Institute for Lung Health, University of Leicester, Leicester, UK
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Saunders R, Sutcliffe A, Kaur D, Siddiqui S, Hollins F, Wardlaw A, Bradding P, Brightling C. Airway smooth muscle chemokine receptor expression and function in asthma. Clin Exp Allergy 2009; 39:1684-92. [PMID: 19735481 PMCID: PMC2774481 DOI: 10.1111/j.1365-2222.2009.03310.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Chemokine receptors play an important role in cell migration and wound repair. In asthma, CCR3 and 7 are expressed by airway smooth muscle (ASM) and CCR7 has been implicated in the development of ASM hyperplasia. The expression profile of other chemokine receptors by ASM and their function needs to be further explored. OBJECTIVE We sought to investigate ASM chemokine receptor expression and function in asthma. METHODS ASM cells were derived from 17 subjects with asthma and 36 non-asthmatic controls. ASM chemokine receptor expression was assessed by flow cytometry and immunofluorescence. The function of chemokine receptors expressed by more than 10% of ASM cells was investigated by intracellular calcium measurements, chemotaxis, wound healing, proliferation and survival assays. RESULTS In addition to CCR3 and 7, CXCR1, 3 and 4 were highly expressed by ASM. These CXC chemokine receptors were functional with an increase in intracellular calcium following ligand activation and promotion of wound healing [CXCL10 (100 ng/mL) 34 +/- 2 cells/high-powered field (hpf) vs. control 29 +/- 1; P=0.03; n=8]. Spontaneous wound healing was inhibited by CXCR3 neutralizing antibody (mean difference 7 +/- 3 cells/hpf; P=0.03; n=3). CXC chemokine receptor activation did not modulate ASM chemotaxis, proliferation or survival. No differences in chemokine receptor expression or function were observed between ASM cells derived from asthmatic or non-asthmatic donors. CONCLUSIONS Our findings suggest that the chemokine receptors CXCR1, 3 and 4 modulate some aspects of ASM function but their importance in asthma is uncertain.
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Affiliation(s)
- R Saunders
- Department of Infection, Immunity and Inflammation, Institute for Lung Health, University of Leicester, Leicester, UK
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Parmar VR, Kumar A, Kaur R, Parmar S, Kaur D, Basu S, Jain S, Narula S. Experience with Kangaroo mother care in a neonatal intensive care unit (NICU) in Chandigarh, India. Indian J Pediatr 2009; 76:25-8. [PMID: 19390999 DOI: 10.1007/s12098-009-0024-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [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: 01/02/2008] [Accepted: 08/20/2008] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To study the feasibility and acceptability of Kangaroo mother care (KMC) on the low birth weight infants (LBWI) in the neonatal intensive care unit (NICU) by the mothers, family members and health care workers (HCW) and to observe its effect on the vital parameters of the babies. METHOD A observation in the NICU. RESULTS A total of 135 babies (74 boys and 61 girls) who completed minimum of 4 hrs of KMC/day, were included. The mean birth weight and gestation were 1460 gm and 30 week respectively. 47% babies started KMC within first week of age. Mean duration of KMC was 7 days (3-48) days. The O(2) saturation improved by 2-3%, temperature ( degrees C) rose from 36.75 +/- 0.19 to 37.23 +/- 0.25, respiration stabilized (p<0.05 for all) and heart rate dropped by 3-5 beats. No episodes of hypothermia or apnea were observed during KMC. KMC was accepted by 96 % mothers, 82% fathers and 84% other family members. 94% HCW considered it to be safe and conservative method of care of LBWI. Benefits of KMC on the babies' behavior and on maternal confidence and lactation were reported by 57%, 94% and 80% respectively. A decline in use of heating devices in the NICU was reported by 85% and 79% said it did not increase their work load. CONCLUSION KMC was found to be safe, effective and feasible method of care of LBWI even in the NICU settings. Positive attitudes were observed in mothers, families and HCW.
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Affiliation(s)
- Veena Rani Parmar
- Department of Pediatrics, Government Medical College Hospital, Chandigarh, India.
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Saunders R, Sutcliffe A, Woodman L, Kaur D, Siddiqui S, Okayama Y, Wardlaw A, Bradding P, Brightling C. The airway smooth muscle CCR3/CCL11 axis is inhibited by mast cells. Allergy 2008; 63:1148-55. [PMID: 18699931 DOI: 10.1111/j.1398-9995.2008.01684.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Airway smooth muscle hyperplasia is a feature of asthma, and increases with disease severity. CCR3-mediated recruitment of airway smooth muscle progenitors towards the airway smooth muscle bundle has been proposed as one possible mechanism involved in airway smooth muscle hyperplasia. Mast cells are microlocalized to the airway smooth muscle bundle and whether mast cells influence CCR3-mediated migration is uncertain. METHODS We examined the expression of CCR3 by primary cultures of airway smooth muscle cells from asthmatics and nonasthmatics. CCR3 function was examined using intracellular calcium measurements, chemotaxis, wound healing, cell proliferation and survival assays. We investigated the recovery and function of both recombinant and airway smooth muscle-derived CCL11 (eotaxin) after co-culture with beta-tryptase and human lung mast cells. RESULTS Airway smooth muscle expressed CCR3. Airway smooth muscle CCR3 activation by CCL11 mediated intracellular calcium elevation, concentration-dependent migration and wound healing, but had no effect on proliferation or survival. Co-culture with beta-tryptase or mast cells degraded recombinant and airway smooth muscle-derived CCL11, and beta-tryptase inhibited CCL11-mediated airway smooth muscle migration. CONCLUSIONS CCL11 mediates airway smooth muscle migration. However co-culture with beta-tryptase or mast cells degraded recombinant and airway smooth muscle-derived CCL11 and inhibited CCL11-mediated airway smooth muscle migration. Therefore these findings cast doubt on the importance of the CCL11/CCR3 axis in the development of airway smooth muscle hyperplasia in asthma.
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Affiliation(s)
- R Saunders
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, UK
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39
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Sonu D, Bedi R, Kaur D. Pulse laser deposition of AgInSe 2films. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308085425] [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: 11/11/2022] Open
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40
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Kaur D, Kaur RP. A theoretical study on NH bond dissociation enthalpies of oxo, thio and seleno carbamates and their N-protonated and N-deprotonated species. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.theochem.2008.02.019] [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: 10/22/2022]
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Kakkar V, Kaur D, Chopra K, Kaur A, Kaur IP. Assessment of the variation in menopausal symptoms with age, education and working/non-working status in north-Indian sub population using menopause rating scale (MRS). Maturitas 2007; 57:306-14. [PMID: 17408889 DOI: 10.1016/j.maturitas.2007.02.026] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [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: 10/27/2006] [Revised: 02/03/2007] [Accepted: 02/14/2007] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To study the variation of the menopause rating scale (MRS) scores with age, working/non-working and educated/uneducated status in a cohort of north-Indian subpopulation and to look for the possible reasons for the incurred variations. MRS is a well-known and validated instrument for assessing the frequency and intensity of menopausal symptoms. METHOD A menopause clinic was organized in collaboration with a primary care centre (under the guidance of a gynecologist). A random sample of 208 women aged 35-65 years participated in the study. The MRS scale, a self-administered standardized questionnaire was applied with additional patient related information (age at menopause, level of education, working/non-working and exercising or not). RESULTS The results were evaluated for psychological (P), somatic (S), and urogenital (U) symptoms. The average age at which menopause set in, in the cohort was found to be 48.7+/-2.3 years (46.4-51 years). Based on the average age at the menopause, the cohort was divided into peri (35-45), menopausal/early menopause (46-51) and the postmenopausal (52-65) groups. A significantly higher % of perimenopausal women (36%) showed a P score of > or =7; while a higher % of postmenopausal showed S score and U score > or =7 (>40%; p< or =0.001). Working women seem to suffer more from psychological symptoms whereas non-working women showed a greater incidence of somatic symptoms. Educated women showed a lower incidence of psychological and somatic symptoms. CONCLUSIONS Present study indicates that age, level of education and working/non-working status (in a group of women with same socio-cultural background) may also contribute to significant variations in menopausal symptoms.
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Affiliation(s)
- V Kakkar
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
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43
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Tandon VR, Kaur D, Khajuria V. Menstrual disturbance with the use of herbal anti-obesity preparation. J Postgrad Med 2006; 52:326-7. [PMID: 17102564] [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: 05/12/2023] Open
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Kaur D, Hollins F, Woodman L, Yang W, Monk P, May R, Bradding P, Brightling CE. Mast cells express IL-13R alpha 1: IL-13 promotes human lung mast cell proliferation and Fc epsilon RI expression. Allergy 2006; 61:1047-53. [PMID: 16918506 DOI: 10.1111/j.1398-9995.2006.01139.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND The Th2 cytokine interleukin (IL)-13 is implicated in the development of various allergic diseases including asthma. The IL-13 receptor, IL-13Ralpha1, is expressed on most leukocytes, except T-cells. Evidence to support IL-13Ralpha1 expression on mast cells is limited. METHODS We investigated: (i) IL-13Ralpha1 expression by human lung mast cells (HLMC); (ii) the number of IL-13Ralpha1+ bronchial submucosal mast cells in subjects with asthma and normal controls and (iii) the effect of IL-13 priming on HLMC expression of high-affinity IgE receptor (FcepsilonRI), stem cell factor receptor (CD117), histamine release, proliferation, and survival. RESULTS Human lung mast cell expressed IL-13Ralpha1 mRNA. IL-13Ralpha1 was highly expressed on the surface HLMC (82+/-9%). Bronchial submucosal mast cell IL-13Ralpha1 expression was higher in asthmatics (86+/-2%) than normal controls (78+/-2%; P=0.015). IL-13 priming for 30 min did not increase HLMC histamine release, in the presence or absence of SCF or in response to IgE/anti-IgE activation. IL-13 priming for 5 days upregulated HLMC FcepsilonRI expression (22% increase in fluorescent intensity; P=0.003), increased histamine release following IgE/anti-IgE activation by 56% (P=0.03) and increased proliferation by 50% (P=0.003) without affecting cell survival or CD117 expression. The IL-13 specific neutralizing antibody CAT-354 inhibited all IL-13 mediated effects. CONCLUSION Human lung mast cell express IL-13Ralpha1 and activation by IL-13 for 5 days increased FcepsilonRI expression and proliferation. Histamine release was not affected by short-term priming with IL-13, but was upregulated by priming for 5 days suggesting that this effect was mediated by the increased FcepsilonRI expression. These data support the view that targeting IL-13 may be beneficial in the treatment of asthma.
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Affiliation(s)
- D Kaur
- Department of Infection, Institute for Lung Health, Inflammation and Immunity, University of Leicester, Leicester, UK
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Sutcliffe A, Kaur D, Page S, Woodman L, Armour CL, Baraket M, Bradding P, Hughes JM, Brightling CE. Mast cell migration to Th2 stimulated airway smooth muscle from asthmatics. Thorax 2006; 61:657-62. [PMID: 16601090 PMCID: PMC2104682 DOI: 10.1136/thx.2005.056770] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Mast cell microlocalisation within the airway smooth muscle (ASM) bundle is an important determinant of the asthmatic phenotype. We hypothesised that mast cells migrate towards ASM in response to ASM derived chemokines. METHODS Primary ASM cultures from subjects with and without asthma were stimulated with interleukin (IL)-1beta, IL-4, and IL-13 alone and in combination. Mast cell chemotaxis towards these ASM supernatants was investigated, and the chemotaxins mediating migration by using specific blocking antibodies for stem cell factor (SCF) and the chemokine receptors CCR3, CXCR1, 3 and 4 as well as the Gi inhibitor pertussis toxin and the tyrosine kinase inhibitor genistein were defined. The concentrations of CCL11, CXCL8, CXCL10, TGF-beta, and SCF in the supernatants were measured and the effect of non-asthmatic ASM supernatants on the mast cell chemotactic activity of asthmatic ASM was examined. RESULTS Human lung mast cells and HMC-1 cells migrated towards Th2 stimulated ASM from asthmatics but not non-asthmatics. Mast cell migration was mediated through the combined activation of CCR3 and CXCR1. CCL11 and CXCL8 expression by ASM increased markedly after stimulation, but was similar in those with and without asthma. ASM supernatants from non-asthmatics inhibited mast cell migration towards the asthmatic ASM supernatant. CONCLUSION Th2 stimulated ASM from asthmatics is chemotactic for mast cells. Non-asthmatic ASM releases a mediator or mediators that inhibit mast cell migration towards stimulated asthmatic ASM. Specifically targeting mast cell migration into the ASM bundle may provide a novel treatment for asthma.
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Affiliation(s)
- A Sutcliffe
- Institute for Lung Health, Department of Infection, University of Leicester, Leicester, UK
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Eoh HJ, Brown AC, Buetow L, Hunter WN, Parish T, Kaur D, Brennan PJ, Crick DC. Characterization of 4‐diphosphocytidyl‐2‐C‐methyl‐D‐erythritol synthase (IspD) from
Mycobacterium tuberculosis. FASEB J 2006. [DOI: 10.1096/fasebj.20.4.a488-b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- H. J. Eoh
- Micro.Immun. and Path.Colorado State University1682 Campus DeliveryFort CollinsColorado80523
| | - A. C. Brown
- Centre for Infectious DiseaseQueen Mary’s School of Medicine and Dentistry4 Newark St.LondonUnited Kingdom
| | - L. Buetow
- Division of Biological Chemistry and Molecular MicrobiologyUniversity of DundeeDow St.DundeeUnited Kingdom
| | - W. N. Hunter
- Division of Biological Chemistry and Molecular MicrobiologyUniversity of DundeeDow St.DundeeUnited Kingdom
| | - T. Parish
- Centre for Infectious DiseaseQueen Mary’s School of Medicine and Dentistry4 Newark St.LondonUnited Kingdom
| | - D. Kaur
- Micro.Immun. and Path.Colorado State University1682 Campus DeliveryFort CollinsColorado80523
| | - P. J. Brennan
- Micro.Immun. and Path.Colorado State University1682 Campus DeliveryFort CollinsColorado80523
| | - D. C. Crick
- Micro.Immun. and Path.Colorado State University1682 Campus DeliveryFort CollinsColorado80523
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Gupta AK, Kaur D, Rattan B, Yadav MP. Molecular variability in different Indian isolates of equine herpesvirus-1. Vet Res Commun 2005; 29:721-34. [PMID: 16369886 DOI: 10.1007/s11259-005-3380-z] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2004] [Indexed: 10/25/2022]
Abstract
Three abortigenic Indian isolates of equine herpesvirus-1 (EHV-1) (Tohana, Hisar and Bikaner), along with two exotic abortigenic isolates (AB4 and V592) and another EHV-1 isolate (Jind) obtained from a case of perinatal foal mortality, were studied for variability. For this purpose, PCR and restriction endonuclease (RE) digestion techniques were used simultaneously as a DNA fingerprinting system. Nine different regions of EHV-1 virus were amplified by PCR using primer pairs specific for the regions and the products obtained from these regions were subsequently subjected to various restriction endonucleases to further assess the variability in the number of RE sites as well as in their positions. No difference was observed in all the four abortigenic isolates in terms of the size of different PCR products amplified by all the nine primer pairs, except for primer pairs 'E' and 'C'. PCR products obtained with primer pair E revealed that Tohana and Bikaner isolates were most similar while Hisar isolate was like V592 isolate. However, the PCR product obtained from Jind isolate had a size between the PCR products of Hisar and Tohan/Bikaner isolates. The primer pair 'C' used to amplify the region between 1151 to 3679 in 'Gene 1,2,3' clearly differentiated the EHV-1 isolate obtained from a case of perinatal foal mortality from isolates obtained from abortion cases. This primer pair needs to be exploited more extensively for use as a potential marker for differentiating the EHV-1 isolates, mainly the abortion cases from perinatal foal mortality ones. Restriction endonuclease studies done with PCR product of all the isolates with various primer pairs did not reveal any changes in the position or number of RE sites present in the products amplified, indicating no variation in different RE sites within the amplified PCR products. However, this study clarified that all the Indian isolates belonged to the IP group of EHV-1.
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Affiliation(s)
- A K Gupta
- National Research Centre on Equines, Sirsa Road, Hisar, 125 001, India.
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Abstract
The mechanism of chronic mast cell activation in asthma is unclear. Monomeric immunoglobulin (Ig)E in the absence of allergen induces mediator release from rodent mast cells, indicating a possible role for IgE in the continued activation of mast cells within the asthmatic bronchial mucosa. In this study it was investigated whether monomeric IgE induces Ca2+ influx and mediator release from human lung mast cells (HLMC). Purified HLMC were cultured for 4 weeks and then exposed to monomeric human myeloma IgE. Ratiometric Ca2+ imaging was performed on single fura-2-loaded cells. Histamine release was measured by radioenzymatic assay; leukotriene C4 (LTC4) and interleukin (IL)-8 were measured by ELISA. At concentrations experienced in vivo, monomeric IgE induced dose-dependent histamine release, LTC4 production and IL-8 synthesis. This was associated with a rise in cytosolic free Ca2+. Enhanced histamine release was still evident 1 week after initial exposure to IgE suggesting that continued exposure maintains enhanced secretion. Monomeric immunoglobulin E alone activates cultured human lung mast cells initiating Ca2+ influx, degranulation, arachidonic acid metabolism and cytokine synthesis. These findings support the hypothesis that immunoglobulin E loading of mast cells within the asthmatic airway contributes to the disordered airway physiology of this disease.
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Affiliation(s)
- G Cruse
- Institute for Lung Health, Dept of Infection, Immunity and Inflammation, University of Leicester, UK
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Kaur D, Berger P, Duffy SM, Brightling CE, Bradding P. Co-cultivation of mast cells and Fc epsilon RI alpha+ dendritic-like cells from human hip bone marrow. Clin Exp Allergy 2005; 35:226-33. [PMID: 15725196 DOI: 10.1111/j.1365-2222.2005.02161.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Mast cells contribute to the pathogenesis of asthma and allergy through the release of a plethora of pro-inflammatory mediators and cytokines. Their study is hampered by the difficult access to human tissue samples. Human mast cells have been cultured from CD34+ progenitors in the bone marrow of normal volunteers following iliac crest bone marrow biopsy but this is invasive. Hip bone marrow could provide a more convenient less invasive source of mast cell progenitors. OBJECTIVE To characterize mast cells cultured from human bone marrow obtained at routine hip surgery. METHODS Mononuclear cells were isolated from the bone marrow reamings of patients undergoing routine hip replacement surgery and were cultured with recombinant stem cell factor (SCF), IL-6 and IL-10. Cell surface markers were examined using flow cytometry, protease expression monitored using immunohistochemistry, histamine measured by radioenzymic assay, Ca2+ responses analysed using ratiometric Ca2+ imaging, and ion currents recorded via the patch-clamp technique. RESULTS Mast cells were absent at baseline, but accounted for 65 +/- 7% of cells after 8-12 weeks of culture, equating to a mean 0.6 +/- 0.14 x 10(6) mast cells per culture. Fifty-three percent of tryptase+ cells also contained chymase. The remaining cells comprised a population of large CD1a+ HLA-DR+ and Fc epsilon RI alpha+ cells, most likely dendritic cells. All mast cells expressed CD117 and the high-affinity IgE receptor alpha-chain (Fc epsilon RI alpha) constitutively, and developed a Ca2+ response following IgE-dependent activation. These cells exhibited 7.8 +/- 2.9% net IgE-dependent histamine release, and demonstrated a similar ion channel profile to human lung mast cells. In particular, the intermediate conductance Ca(2+)-activated K+ channel opened following IgE-dependent activation. CONCLUSIONS Mast cells grown from human hip marrow provide a rich non-invasive source of functionally mature mast cells. In addition, this culture system may be useful for the generation of Fc epsilon RI alpha+ dendritic cells.
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Affiliation(s)
- D Kaur
- Department of Infection, Immunity and Inflammation, Institute for Lung Health, University of Leicester and Warwick Medical School, University Hospitals of Leicester, Glenfield General Hospital, Leicester, UK.
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