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Singh R, Singh G, George N, Singh G, Malik P, Singh H, Kaur G, Singh J. Unveiling the ion sensing capabailities of 'click' derived chalcone-tailored 1,2,3-triazolic isomers for Pb(ii) and Cu(ii) ions: DFT analysis. RSC Adv 2024; 14:15374-15390. [PMID: 38741961 PMCID: PMC11089528 DOI: 10.1039/d4ra01471e] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/07/2024] [Indexed: 05/16/2024] Open
Abstract
In this study, two novel chalcone-derived 1,2,3-triazole-appended positional isomers (probe 6 and probe 9) were synthesized via the 'CuAAC' (Cu(i) - catalysed alkyne azide cycloaddition) methodology for the purpose of metal ion detection. The synthesized probes underwent characterization utilizing standard spectroscopic methodologies including FTIR, NMR (1H and 13C), and mass spectrometry. Subsequently, the sensing capabilities of these probes were explored using UV-Vis and fluorescence spectroscopy, wherein their selective recognition potential was established for Pb(ii) and Cu(ii), both of which can pose serious health hazards when prevalent in the environment above permissible limits. Both the probes exhibited fairly low limits of detection (LoD), determined as 5.69 μM and 6.55 μM in the case of probe 6 for Pb(ii) and Cu(ii) respectively; whereas the probe 9 exhibited an LoD of 5.06 μM and 7.52 μM for Pb(ii) and Cu(ii), respectively. The job's plot for the probe demonstrates the formation of a 1 : 1 complex between the metal and ligand. Furthermore, the interaction of the free probes with the metal ions in the metal-ligand complex was elucidated through 1H NMR analysis and validated theoretically using Density Functional Theory (DFT) simulations with the B3LYP/6-311G++(d,p) and B3LYP/LANL2DZ basis sets for geometry optimization of the probes and their corresponding metal complexes. These findings offer a reliable approach to Cu(ii) and Pb(ii) ion detection and can be further used for the potential applications in environmental monitoring and analytical chemistry.
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Affiliation(s)
- Riddima Singh
- School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 Punjab India
| | - Gurleen Singh
- School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 Punjab India
| | - Nancy George
- School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 Punjab India
| | - Gurjaspreet Singh
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University Chandigarh-160014 India
| | - Pooja Malik
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University Chandigarh-160014 India
| | - Harminder Singh
- School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 Punjab India
| | - Gurpreet Kaur
- Department of Chemistry, Gujranwala Guru Nanak Khalsa College, Civil Lines Ludhiana-141001 Punjab India
| | - Jandeep Singh
- School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 Punjab India
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2
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van Gendt J, Emaus R, Visschedijk MC, Touw DJ, Bouwknegt DG, de Leeuw K, Prins JR, Malik P, Mian P. Pharmacokinetics of Monoclonal Antibodies Throughout Pregnancy: A Systematic Literature Review. Clin Pharmacokinet 2024:10.1007/s40262-024-01370-7. [PMID: 38583128 DOI: 10.1007/s40262-024-01370-7] [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] [Accepted: 03/12/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND AND OBJECTIVE Although little information is available on the pharmacokinetics (PK) of monoclonal antibodies (mAbs) during pregnancy, multiple mAbs are being used during pregnancy for various indications. The aim of this systematic literature review was to characterize the PK of mAbs throughout pregnancy. METHODS A systematic literature search was carried out in PubMed and Embase on 21 April 2023. Articles were included when information on PK or exposure parameters of mAbs in pregnant women was available. RESULTS A total of 42 relevant articles were included, of which eight discussed adalimumab, three certolizumab pegol, five eculizumab, one golimumab, 12 infliximab (IFX), two natalizumab, one canakinumab, one omalizumab, five tocilizumab, eight ustekinumab, and five vedolizumab. One of the 42 studies reported information on clearance (CL) and volume of distribution (VD) of IFX; all other studies only reported on serum concentrations in the pre-pregnancy state, different trimesters, and the postpartum period. For all of the assessed mAbs except IFX, serum concentrations were similar to concentrations in the pre-pregnancy state or modestly decreased. In contrast, IFX trough concentrations generally increased in the second and third trimesters in comparison to the non-pregnant state. CONCLUSION Available information suggests that the anatomical and physiological changes throughout pregnancy may have meaningful effects on the PK of mAbs. For most mAbs (not IFX), modestly higher dosing (per mg) maybe needed during pregnancy to sustain a similar serum exposure compared to pre-pregnancy.
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Affiliation(s)
- J van Gendt
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen and University of Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
| | - R Emaus
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen and University of Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
| | - M C Visschedijk
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - D J Touw
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen and University of Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
- Department of Pharmaceutical Analysis, Groningen Research Institute for Pharmacy, University of Groningen, Groningen, The Netherlands
| | - D G Bouwknegt
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - K de Leeuw
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - J R Prins
- Department of Obstetrics and Gynaecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - P Malik
- Calico Life Sciences, South San Francisco, USA
| | - Paola Mian
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen and University of Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands.
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3
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Malik P, Prajapati M, Chaudhary D, Prasad M, Jaiwal R, Jaiwal PK. Production of Bovine Rotavirus VP6 Subunit Vaccine in a Transgenic Fodder Crop, Egyptian Clover (Berseem, Trifolium alexandrinum) that Elicits Immune Responses in Rabbit. Mol Biotechnol 2023; 65:1432-1443. [PMID: 36637627 DOI: 10.1007/s12033-022-00648-0] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 12/28/2022] [Indexed: 01/14/2023]
Abstract
Group A rotavirus causes acute gastroenteritis in young ones of animals worldwide and is responsible for a high rate of their morbidity and mortality leading to huge economic losses. Developing affordable and safer vaccine on large scale is imperative to reach cattle population worldwide for the long-term control of diarrhea. Rotavirus middle capsid protein layer, VP6, is the most immunogenic and highly conserved protein that induces immune responses against rotavirus. In the present study, bovine group A rotavirus VP6 protein has been expressed for the first time in a highly nutritious and palatable forage crop, Trifolium alexandrinum, using Agrobacterium tumefaciens-mediated stable nuclear transformation. Transgenic nature of the shoots regenerated from cotyledon explants and rooted on hygromycin-containing medium was confirmed by polymerase chain reaction (PCR), Southern blot hybridization, reverse transcription-PCR (RT-PCR) and quantitative real-time PCR (qPCR), and protein expression and quantification by Western blot and enzyme-linked immune-sorbent assay (ELISA), respectively. The transformation efficiency of 2.10% was obtained. The highest amount of VP6 protein produced in a transgenic line was 402 ng/g fresh weights (0.03% of total soluble protein). Oral feeding of transgenic leafy shoots expressing VP6 protein stimulated systemic immunity by inducing significantly higher titers of anti-VP6 serum IgG antibodies in rabbit to reduce rotavirus infection. These transgenic fodder plants offer safer vaccine produced on large scale at low cost with reduced regulatory issues to improve livestock's health and wealth. These plants would be used as alternative to the current live attenuated vaccines to protect young calves against rotavirus infection.
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Affiliation(s)
- Pooja Malik
- Centre for Biotechnology, M. D. University, Rohtak, 124001, India
| | - Mukta Prajapati
- Centre for Biotechnology, M. D. University, Rohtak, 124001, India
| | | | - Minakshi Prasad
- Department of Animal Biotechnology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, 125001, India
| | - Ranjana Jaiwal
- Department of Zoology, M. D. University, Rohtak, 124001, India
| | - Pawan K Jaiwal
- Centre for Biotechnology, M. D. University, Rohtak, 124001, India.
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Singh G, Devi A, Malik P, Khurana S, Stanzin J, Sharma D. Bis-triazole linked organosilane based sensing platform for Cu 2+ ions and insilico tyrosinase inhibitor activity. Spectrochim Acta A Mol Biomol Spectrosc 2023; 299:122854. [PMID: 37196553 DOI: 10.1016/j.saa.2023.122854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/15/2023] [Accepted: 05/09/2023] [Indexed: 05/19/2023]
Abstract
The development of a ligand for their selective and sensitive detection is required due to the widespread use of Cu2+ in many industrial processes and the potential threat to human health. Herein, we report a bis-triazole linked organosilane (5) derived from the Cu(I) catalyzed azide-alkyne cycloaddition reaction. The synthesized compound 5 was characterized by (1H and 13C) NMR spectroscopic and mass spectrometry techniques. The UV-Visible and Fluorescence experiments of the designed compound 5 were performed with various metal ions, revealing its high selectivity and sensitivity to Cu2+ ions in MeOH: H2O (8:2, v/v, pH = 7.0, PBS buffer) solution. The selective fluorescence quenching upon addition of Cu2+ to the compound 5 is due to Photo-induced electron transfer process (PET). The limit of detection of compound 5 to Cu2+ was calculated as 2.56 × 10-6 M and 4.36 × 10-7 M through UV-Visible and Fluorescence titration data, respectively. The possible mechanism of 1:1 binding of 5 with Cu2+ could be affirmed by the density functional theory (DFT). Further, it was found that compound 5 showed a reversible behavior towards Cu2+ ions by the accumulation of sodium salt of CH3COO- which can be used in the construction of molecular logic gate where Cu2+ and CH3COO- are considered as inputs and the absorbance at 260 nm as output. Moreover, the molecular docking studies provide useful information about compound 5's interaction with the tyrosinase enzyme (PDB ID- 2Y9X).
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Affiliation(s)
- Gurjaspreet Singh
- Department of Chemistry, Panjab University, Chandigarh 160014, India.
| | - Anita Devi
- Department of Chemistry, Panjab University, Chandigarh 160014, India.
| | - Pooja Malik
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Sumesh Khurana
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Jigmat Stanzin
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Devina Sharma
- Department of Chemistry, Panjab University, Chandigarh 160014, India
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5
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Upadhyay P, Malik P, Upadhyay S. Tea tree (Melaleuca alternifolia) essential oil concentration in micro-emulsion with antibacterial and antifungal activity: An Overview. CDTH 2023. [DOI: 10.2174/1574885518666230228103854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
1:
The tea tree (Melaleuca alternifolia), a member of the Myrtaceae family, is a valuable medicinal and aromatic plant. Tea Tree essential oil (TTO) has many medical applications, including antibacterial, antifungal, antiviral, antiprotozoal, anti-inflammatory, antioxidant, and anticancer properties. Although the concentration of TTO in a microemulsion is of economic interest, very few studies on this product have been conducted. In this study, we look at how different tea tree oil concentrations in microemulsion formulations affect susceptibility to various bacteria and fungi. TTO susceptibility in a diverse range of microbial species has now been studied using data from a previously published literature review survey. Most bacteria are resistant to TTO at concentrations as low as 1.0 percent, but mucosal skin staphylococci and micrococci, Enterococcus faecalis, and Pseudomonas aeruginosa have minimum inhibitory concentrations much higher than 2 percent. TTO susceptibility in fungi has only recently been scrutinized. Fungicidal dosages range from 0.12 to 2 percent, with minimum inhibitory concentrations ranging from 0.03 to 0.5 percent and the only notable exception is Aspergillus niger, which contains fungicidal concentrations of up to 8%. The review emphasizes the importance of new antibacterial and antifungal formulations, as well as the role of natural essential oils in the discovery of new antibacterial and antifungal agents, and discusses, in brief, all constituents derived from the essential oil (tea tree) that are in preclinical and clinical development. This paper summarizes human and food-borne bacteria and fungi susceptibility to tea tree essential oils and their constituents. Among the many tested, essential oils of spices and herbs (Melaleuca alternifolia) were found to have the strongest antimicrobial properties. This review looks at a wide range of scientific literature, including Sci-hub, Google Scholar, Pub, Chem, NCBI, and web books.
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Affiliation(s)
- Prashant Upadhyay
- School of Pharmaceutical Sciences, Faculty of Pharmacy, IFTM University, Moradabad, Uttar Pradesh, India
| | - Pooja Malik
- School of Pharmaceutical Sciences, Faculty of Pharmacy, IFTM University, Moradabad, Uttar Pradesh, India
| | - Sukirti Upadhyay
- School of Pharmaceutical Sciences, Faculty of Pharmacy, IFTM University, Moradabad, Uttar Pradesh, India
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6
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Singh G, Sharma S, Singh A, Devi A, Gupta S, Malik P, Khurana S, Soni S. Detection of 2,4-dichlorophenoxyacetic acid in water sample by organosilane based silica nanocomposites. Sci Total Environ 2023; 858:159594. [PMID: 36280050 DOI: 10.1016/j.scitotenv.2022.159594] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/16/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
The present study aims to produce nanocomposites of silica based organosilane as sensitive and selective fluorescent sensor for the recognition of 2,4 dichlorophenoxyacetic acid (2,4-D). Hydrazone tethered triazole functionalized organosilane has been synthesized by the condensation reaction of 4-hydroxybenzaldehyde and phenyl hydrazine followed by Cu(I) catalysed cycloaddition of azide with alkyne. The prepared compound has been further grafted over silica surface and the synthesized materials were characterized by FT-IR, NMR (1H and 13C), XRD, mass spectrometry and FE-SEM spectral analyses. The prepared organosilane and its HSNPs have been utilized as an effective emission probe for the selective detection of 2,4 D with good linear relationship in the range of 0-160 μM and 0-115 μM and LOD value of 46 nM and 13.5 nM respectively. In the presence of other active species, the sensor shows minimal interference while the comparison with the previously reported techniques suggests it to be more desirable for the sensitive and selective detection of 2,4 D. Further, the real sample application for detection of 2,4 D was analyzed in field water and the HSNPs based sensing system gave recovery percentage of above 98 %.
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Affiliation(s)
- Gurjaspreet Singh
- Department of Chemistry, Panjab University, Chandigarh 160014, India.
| | - Sanjay Sharma
- Department of Chemistry, Panjab University, Chandigarh 160014, India.
| | - Akshpreet Singh
- Department of Chemistry, DAV College, Sector-10, Chandigarh 160011, India.
| | - Anita Devi
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Sofia Gupta
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Pooja Malik
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Sumesh Khurana
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Sajeev Soni
- Department of Chemistry, GGDSD College, Sector-32, Chandigarh, India
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7
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Malik P, Lenka U. Testing the mediating role of POS between perceived AMO framework and deviant behaviours in the Indian IT sector. EJIM 2023. [DOI: 10.1504/ejim.2023.128424] [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: 01/26/2023]
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8
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Malik P, Hashim T, Varma S, Diaz L, Chowdhary A, Bapat P, Alkhatib L, Centeno L, Poursina O, Pan H, Patil A. BTEX (benzene, toluene, ethylbenzene, and xylene) and risk of cancer - a study from Centers for Disease Control and Prevention's National Health and Nutrition Examination Survey. Am J Clin Pathol 2022. [DOI: 10.1093/ajcp/aqac126.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Introduction/Objective
BTEX (benzene, toluene, ethylbenzene, and xylene) is well know for its toxicity via through environmental, occupational and recreational exposures. However, there is limited literature about the carcinogenic effect of BTEX. Hence, we aim to study the prevalence and association of cancer amongst individuals with exposure of BTEX.
Methods/Case Report
A retrospective cross-sectional study was performed between 2013 and 2018 utilizing the NHANES database. Adult individuals having data on socio-demographic questionnaires and lab findings on exposure to BTEX were included. Prevalence of cancer was identified amongst exposure to BTEX (vs no-BTEX). Univariate (chi-squre test and Mann–Whitney U test) and Multivariate (survey logistic regression) analysis was performed to evaluate the epidemiologic characteristics of individuals exposred to BTEX and association of cancer with BTEX exposure in comparison to no BTEX exposure.The p value of <0.05 considered statistically significant.
Results (if a Case Study enter NA)
124,162 participants were identified with BTEX exposure. Individuals with BTEX exposure were young (40 vs 51 year old), male (91% vs female: 87%), and Mexican American (92% vs Non-Hispanic Black: 89% vs Non-Hispanic White: 89% vs other Hispanic: 87%). Univariate analysis showed higher total prevalence of cancer in BTEX (9.3% vs. 1.3%; p<0.0001) compared to no BTEX. Individuals with BTEX exposure had higher prevalnece of blood cancer (0.47% vs 0.00; p<0.0001), leukemia (0.56% vs 0.00; p<0.001), and lymphoma (1.72% vs 0.39%; p<0.0001) in comparison with no exposure. Multivaritate analysis showed participants with BTEX exposure had 10% higher risk of cancer (aOR: 1.10; 95%CI: 1.10-1.10; p<0.0001) compared to no BTEX exposure. Additionally, exposure to individual components of benzene (aOR: 1.24; 95%CI: 1.24; p<0.0001), ethylbenzene (aOR: 1.08; 95%CI: 1.08-1.08; p<0.0001), and o-xylene (aOR: 1.19; 95%CI: 1.19-1.19; p<0.0001) had higher risk of cancer compared to no exposure participants.
Conclusion
Our study conclude higher risk of cancer among participants with exposure to benzene, ethylbenzene and o-xylene. Future studies are warranted to evaluate the association of various types of cancers in BTEX exposure.
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Affiliation(s)
- P Malik
- Montefiore Medical Center , Bronx, New York , United States
| | - T Hashim
- Batterjee Medical College , Jeddah , Saudi arabia
| | - S Varma
- Madurai Medical College and Government Rajaji Hospital , Madurai , India
| | - L Diaz
- Universidad de Guayaquil , Guayaquil , Ecuador
| | - A Chowdhary
- Smt Kashibai Navale Medical College and General Hospital , Pune , India
| | - P Bapat
- Smt Kashibai Navale Medical College and General Hospital , Pune , India
| | | | - L Centeno
- University of Santo Tomas Faculty of Medicine and Surgery , Manila , Philippines
| | - O Poursina
- Houston Methodist Hospital , Houston, Texas , United States
| | - H Pan
- Tianjin University of Chinese Medicine , Tianjin, Tianjin , CHINA
| | - A Patil
- University of Miami, Miller School of Medicine , Miami, Florida , United States
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van Leent T, Bock M, Fertig F, Garthoff R, Eppelt S, Zhou Y, Malik P, Seubert M, Bauer T, Rosenfeld W, Zhang W, Becher C, Weinfurter H. Entangling single atoms over 33 km telecom fibre. Nature 2022; 607:69-73. [PMID: 35794269 PMCID: PMC9259499 DOI: 10.1038/s41586-022-04764-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 04/14/2022] [Indexed: 11/09/2022]
Abstract
Quantum networks promise to provide the infrastructure for many disruptive applications, such as efficient long-distance quantum communication and distributed quantum computing1,2. Central to these networks is the ability to distribute entanglement between distant nodes using photonic channels. Initially developed for quantum teleportation3,4 and loophole-free tests of Bell's inequality5,6, recently, entanglement distribution has also been achieved over telecom fibres and analysed retrospectively7,8. Yet, to fully use entanglement over long-distance quantum network links it is mandatory to know it is available at the nodes before the entangled state decays. Here we demonstrate heralded entanglement between two independently trapped single rubidium atoms generated over fibre links with a length up to 33 km. For this, we generate atom-photon entanglement in two nodes located in buildings 400 m line-of-sight apart and to overcome high-attenuation losses in the fibres convert the photons to telecom wavelength using polarization-preserving quantum frequency conversion9. The long fibres guide the photons to a Bell-state measurement setup in which a successful photonic projection measurement heralds the entanglement of the atoms10. Our results show the feasibility of entanglement distribution over telecom fibre links useful, for example, for device-independent quantum key distribution11-13 and quantum repeater protocols. The presented work represents an important step towards the realization of large-scale quantum network links.
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Affiliation(s)
- Tim van Leent
- Faculty of Physics, Ludwig-Maximilians-University of Munich, Munich, Germany
- Munich Center for Quantum Science and Technology, Munich, Germany
| | - Matthias Bock
- Department of Physics, Saarland University, Saarbrücken, Germany
- Institute of Experimental Physics, University of Innsbruck, Innsbruck, Austria
| | - Florian Fertig
- Faculty of Physics, Ludwig-Maximilians-University of Munich, Munich, Germany
- Munich Center for Quantum Science and Technology, Munich, Germany
| | - Robert Garthoff
- Faculty of Physics, Ludwig-Maximilians-University of Munich, Munich, Germany
- Munich Center for Quantum Science and Technology, Munich, Germany
| | - Sebastian Eppelt
- Faculty of Physics, Ludwig-Maximilians-University of Munich, Munich, Germany
- Munich Center for Quantum Science and Technology, Munich, Germany
| | - Yiru Zhou
- Faculty of Physics, Ludwig-Maximilians-University of Munich, Munich, Germany
- Munich Center for Quantum Science and Technology, Munich, Germany
| | - Pooja Malik
- Faculty of Physics, Ludwig-Maximilians-University of Munich, Munich, Germany
- Munich Center for Quantum Science and Technology, Munich, Germany
| | - Matthias Seubert
- Faculty of Physics, Ludwig-Maximilians-University of Munich, Munich, Germany
- Munich Center for Quantum Science and Technology, Munich, Germany
| | - Tobias Bauer
- Department of Physics, Saarland University, Saarbrücken, Germany
| | - Wenjamin Rosenfeld
- Faculty of Physics, Ludwig-Maximilians-University of Munich, Munich, Germany
- Munich Center for Quantum Science and Technology, Munich, Germany
| | - Wei Zhang
- Faculty of Physics, Ludwig-Maximilians-University of Munich, Munich, Germany.
- Munich Center for Quantum Science and Technology, Munich, Germany.
- School of Physics, Xi'An Jiao Tong University, Xi'An, ShannXi, China.
| | - Christoph Becher
- Department of Physics, Saarland University, Saarbrücken, Germany.
| | - Harald Weinfurter
- Faculty of Physics, Ludwig-Maximilians-University of Munich, Munich, Germany.
- Munich Center for Quantum Science and Technology, Munich, Germany.
- Max-Planck Institute for Quantum Optics, Garching, Germany.
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Grimley M, Kent M, Asnani M, Shrestha A, Felker S, Lutzko C, Arumugam P, Witting S, Knight-Madden J, Niss O, Quinn C, Lo C, Little C, Dong A, Malik P. P1453: STABLE TRANSDUCTION OF FETAL HEMOGLOBIN IN PATIENTS WITH SICKLE CELL DISEASE IN THE PHASE 1/2 MOMENTUM STUDY OF ARU-1801 GENE THERAPY AND REDUCED INTENSITY CONDITIONING. Hemasphere 2022. [PMCID: PMC9429142 DOI: 10.1097/01.hs9.0000848668.22824.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Zayadeen AR, Hijazeen S, Smadi M, Fayyad L, Halasa M, AlQusous S, AlRabadi O, Hijazeen R, Ajlouni Y, Tulenko K, Malik P. Comparing shear wave elastography with liver biopsy in the assessment of liver fibrosis at King Hussein Medical Center. Egypt Liver Journal 2022. [DOI: 10.1186/s43066-022-00186-z] [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: 11/10/2022] Open
Abstract
Abstract
Background and study aims
The aim of this prospective study is to compare the sensitivity and specificity of the liver shear wave elastography to the golden standard liver biopsy in staging liver fibrosis.
Patients and methods
Ninety-five patients were included in this study. These patients were sent for liver biopsy as a possible living liver donor or because of different pathologies including viral and autoimmune hepatitis and congenital liver diseases. A shear wave elastography and US-guided liver biopsy were done at the same setting by one experienced radiologist. One experienced histopathologist, blinded to SWE results, read the specimens.
Results
We included 95 patients in the study with a mean age of 30 years (range 3–65 years). We had 15/95 (16%) patients with hepatitis B/C, 61/95 (64%) patients with another liver disease, and 19/95 (20%) were donors. The mean of liver stiffness measured by elastography in patients was 6.5±0.19 kPa. The mean liver stiffness measured by elastography in patients with F0–F1 fibrosis was 5.39 ± 0.62 kPa, F2 was 7.32 ± 0.41, at stage F3 was 8.46 ± 0.33, and in the F4 stage, it was 11.42 ± 2.8 kPa. We found a significant difference in the mean level of liver stiffness in different degrees of fibrosis (p = 0.0001).
Conclusion
The shear wave elastography could be used to assess liver fibrosis regardless of the cause.
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Malik P, Antonini L, Mannam P, Aboobacker FN, Merve A, Gilmour K, Rao K, Kumar S, Mani SE, Eleftheriou D, Rao A, Hemingway C, Sudhakar SV, Bartram J, Mankad K. MRI Patterns in Pediatric CNS Hemophagocytic Lymphohistiocytosis. AJNR Am J Neuroradiol 2021; 42:2077-2085. [PMID: 34620587 DOI: 10.3174/ajnr.a7292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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] [Received: 05/12/2021] [Accepted: 07/19/2021] [Indexed: 01/19/2023]
Abstract
BACKGROUND AND PURPOSE Neuroimaging has an important role in detecting CNS involvement in children with systemic or CNS isolated hemophagocytic lymphohistiocytosis. We characterized a cohort of pediatric patients with CNS hemophagocytic lymphohistiocytosis focusing on neuroradiologic features and assessed whether distinct MR imaging patterns and genotype correlations can be recognized. MATERIALS AND METHODS We retrospectively enrolled consecutive pediatric patients diagnosed with hemophagocytic lymphohistiocytosis with CNS involvement treated at 2 pediatric neurology centers between 2010 and 2018. Clinical and MR imaging data were analyzed. RESULTS Fifty-seven children (40 primary, 70%) with a median age of 36 months (interquartile range, 5.5-80.8 months) were included. One hundred twenty-three MR imaging studies were assessed, and 2 broad imaging patterns were identified. Pattern 1 (significant parenchymal disease, 32/57, 56%) was seen in older children (P = .004) with worse clinical profiles. It had 3 onset subpatterns: multifocal white matter lesions (21/32, 66%), brainstem predominant disease (5, 15%), and cerebellitis (6, 19%). All patients with the brainstem pattern failed to meet the radiologic criteria for chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids. An attenuated imaging phenotype (pattern 2) was seen in 25 patients (44%, 30 studies) and was associated with younger age. CONCLUSIONS Distinct MR imaging patterns correlating with clinical phenotypes and possible genetic underpinnings were recognized in this cohort of pediatric CNS hemophagocytic lymphohistiocytosis. Disruptive mutations and missense mutations with absent protein expression correlate with a younger onset age. Children with brainstem and cerebellitis patterns and a negative etiologic work-up require directed assessment for CNS hemophagocytic lymphohistiocytosis.
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Affiliation(s)
- P Malik
- From the Departments of Diagnostic Imaging (P. Malik, P. Mannam, S.E.M.)
| | - L Antonini
- Department of Paediatric Hemato-Oncology (L.A.), G. Salesi Hospital, Ancona, Italy
| | - P Mannam
- From the Departments of Diagnostic Imaging (P. Malik, P. Mannam, S.E.M.)
| | | | - A Merve
- Department of Histopathology (A.M.)
| | | | - K Rao
- Bone Marrow Transplant Unit (K.R.)
| | - S Kumar
- Child Heath (S.K.), Christian Medical College, Vellore, India
| | - S E Mani
- From the Departments of Diagnostic Imaging (P. Malik, P. Mannam, S.E.M.)
| | - D Eleftheriou
- Paediatric Rheumatology (D.E.), Great Ormond Street Hospital for Children and University College, London, UK
| | - A Rao
- Department of Pediatric Hematology (A.R., J.B.)
| | | | | | - J Bartram
- Department of Pediatric Hematology (A.R., J.B.)
| | - K Mankad
- Pediatric Neuroradiology Unit (S.V.S., K.M.)
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Abstract
Background: The use of physical constraint in pediatric dentistry is highly controversial. Papoose boards in particular, which envelop and immobilize children during treatment procedures, have been described as barbaric devices even though their goal is to protect the patient. In this debate, the voice of parents is important but still missing in the scientific literature. Aim: To understand how parents or caregivers experienced physical constraint and the use of the papoose board on their children during regular dental treatment. Design: We conducted qualitative research rooted in interpretive phenomenology. Accordingly, we performed in-depth individual interviews with a purposive sample of 7 parents or caregivers. The interviews took place in Montréal, Canada, after the children had been treated with a papoose board for nonemergency dental treatments. The discussions were audio recorded, transcribed, and thematically analyzed. Results: Two perspectives emerged among participants. Some explained that the papoose board calmed their children, helped the dentist to complete the procedures, and made their experience less stressful. For others, the papoose board was a horrible and traumatizing experience, leading to feelings of guilt toward their children. They expressed anger toward the dentists for not allowing them enough time to decide and for imposing use of the device. Conclusion Our study raises serious ethical concerns about this practice. We believe that using a papoose board should remain an extraordinary measure and, more generally, that dental professionals should reflect on the place of children and their families in clinical encounters. Knowledge Transfer Statement: The findings of this study should encourage policy makers, dental professionals and ethicists to consider the following points: 1) the traumatizing experiences described by parents raise serious ethical concerns about the use of papoose boards; 2) the dental profession should reflect on the place of children and their families in the clinical encounter and grapple with the importance of consent and how to ensure consent in encounters involving children and their parents.
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Affiliation(s)
- P Malik
- Faculty of Dentistry, McGill University, Montréal, QC, Canada
| | - B Ferraz Dos Santos
- Faculty of Dentistry, McGill University, Montréal, QC, Canada.,Division of Dentistry, Montréal Children's Hospital, Montréal, QC, Canada
| | - F Girard
- Department of Oral Health, Faculty of Dentistry, Université de Montréal, Montréal, QC, Canada
| | - R Hovey
- Faculty of Dentistry, McGill University, Montréal, QC, Canada
| | - C Bedos
- Faculty of Dentistry, McGill University, Montréal, QC, Canada
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Nambirajan A, Singh V, Rana D, Malik P, Mohan A, Jain D. P59.27 Complementary Utility of Combined ALK/ROS1 FISH with Immunohistochemistry for ALK/ROS1 Rearrangement Testing in Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.616] [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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15
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Chidharla A, Rabbani R, Agarwal K, Abdelwahed S, Bhandari R, Manaktala P, Singh A, Patel K, Singh P, Mehta D, Malik P, Patel U, Pillai S, Koritala T. 1825P Prevalence of cancer among e-cigarette smokers compared to non-smokers: A retrospective cross-sectional survey study of NHANES-CDC. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.713] [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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16
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Malik P, Makar R, Joshi S, Balakrishnan A. 701 Combined Endovascular and Percutaneous Treatment of Traumatic Pseudoaneurysm of Profunda Femoris Artery: A Case Report. Br J Surg 2021. [DOI: 10.1093/bjs/znab134.318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Pseudoaneurysms of the profunda femoris artery are rare complications of femoral fractures, seen especially after orthopaedic interventions for the same.
We present a case of an 89-year-old Caucasian male with a left neck of femur fracture, repaired with a dynamic hip screw. He presented to us a month later with a painful swollen thigh and deep vein thrombosis. The patient underwent arterial duplex and CT angiogram scans and was found to have a pseudoaneurysm in his left profunda femoris artery, measuring 3x3x4.5cm. This was treated with balloon angioplasty and stenting. However, his stent surveillance duplex scan, a month later, showed that the pseudoaneurysm was largely thrombosed with a patent core that was being fed by a communicating vessel from the superficial femoral artery. A subsequent angiogram showed no obvious feeding vessel. The patent pseudoaneurysm was then treated by percutaneous injection of thrombin. Exclusion of the pseudoaneurysm was confirmed by a follow-up duplex scan.
It is essential to treat all feeding vessels of pseudoaneurysms in the presence of a rich collateral supply. Profunda femoris false aneurysms can thus be treated entirely by endovascular/percutaneous methods and so, potentially avoid open surgery.
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Affiliation(s)
- P Malik
- Countess of Chester Hospital, Chester, United Kingdom
| | - R Makar
- Countess of Chester Hospital, Chester, United Kingdom
| | - S Joshi
- Countess of Chester Hospital, Chester, United Kingdom
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Saikia J, Malik P, Jain D, Kumar S, Bharati S, Madan K, Gamit P, Deo S, Kumar S. 23P Clinical utility of cell free DNA in pleural lavage and plasma in resectable NSCLC: A pilot study. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01865-7] [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: 10/21/2022]
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18
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Chaudhary A, Malik P, Shukla R, Mehra R, Raina K. Role of SiO2 optically active mediators to tailor optical and electro-optical properties of ferroelectric liquid crystalline nanocomposites. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113580] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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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Elisofon SA, Magee JC, Ng VL, Horslen SP, Fioravanti V, Economides J, Erinjeri J, Anand R, Mazariegos GV, Martin A, Mannino D, Flynn L, Mohammad S, Alonso E, Superina R, Brandt K, Riordan M, Lokar J, Ito J, Elisofon S, Zapata L, Jain A, Foristal E, Gupta N, Whitlow C, Naik K, Espinosa H, Miethke A, Hawkins A, Hardy J, Engels E, Schreibeis A, Ovchinsky N, Kogan‐Liberman D, Cunningham R, Malik P, Sundaram S, Feldman A, Garcia B, Yanni G, Kohli R, Emamaullee J, Secules C, Magee J, Lopez J, Bilhartz J, Hollenbeck J, Shaw B, Bartow C, Forest S, Rand E, Byrne A, Linguiti I, Wann L, Seidman C, Mazariegos G, Soltys K, Squires J, Kepler A, Vitola B, Telega G, Lerret S, Desai D, Moghe J, Cutright L, Daniel J, Andrews W, Fioravanti V, Slowik V, Cisneros R, Faseler M, Hufferd M, Kelly B, Sudan D, Mavis A, Moats L, Swan‐Nesbit S, Yazigi N, Buranych A, Hobby A, Rao G, Maccaby B, Gopalareddy V, Boulware M, Ibrahim S, El Youssef M, Furuya K, Schatz A, Weckwerth J, Lovejoy C, Kasi N, Nadig S, Law M, Arnon R, Chu J, Bucuvalas J, Czurda M, Secheli B, Almy C, Haydel B, Lobritto S, Emand J, Biney‐Amissah E, Gamino D, Gomez A, Himes R, Seal J, Stewart S, Bergeron J, Truxillo A, Lebel S, Davidson H, Book L, Ramstack D, Riley A, Jennings C, Horslen S, Hsu E, Wallace K, Turmelle Y, Nadler M, Postma S, Miloh T, Economides J, Timmons K, Ng V, Subramonian A, Dharmaraj B, McDiarmid S, Feist S, Rhee S, Perito E, Gallagher L, Smith K, Ebel N, Zerofsky M, Nogueira J, Greer R, Gilmour S, Robert C, Cars C, Azzam R, Boone P, Garbarino N, Lalonde M, Kerkar N, Dokus K, Helbig K, Grizzanti M, Tomiyama K, Cocking J, Alexopoulos S, Bhave C, Schillo R, Bailey A, Dulek D, Ramsey L, Ekong U, Valentino P, Hettiarachchi D, Tomlin R. Society of pediatric liver transplantation: Current registry status 2011-2018. Pediatr Transplant 2020; 24:e13605. [PMID: 31680409 DOI: 10.1111/petr.13605] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/08/2019] [Accepted: 09/27/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND SPLIT was founded in 1995 in order to collect comprehensive prospective data on pediatric liver transplantation, including waiting list data, transplant, and early and late outcomes. Since 2011, data collection of the current registry has been refined to focus on prospective data and outcomes only after transplant to serve as a foundation for the future development of targeted clinical studies. OBJECTIVE To report the outcomes of the SPLIT registry from 2011 to 2018. METHODS This is a multicenter, cross-sectional analysis characterizing patients transplanted and enrolled in the SPLIT registry between 2011 and 2018. All patients, <18 years of age, received a first liver-only, a combined liver-kidney, or a combined liver-pancreas transplant during this study period. RESULTS A total of 1911 recipients from 39 participating centers in North America were registered. Indications included biliary atresia (38.5%), metabolic disease (19.1%), tumors (11.7%), and fulminant liver failure (11.5%). Greater than 50% of recipients were transplanted as either Status 1A/1B or with a MELD/PELD exception score. Incompatible transplants were performed in 4.1%. Kaplan-Meier estimates of 1-year patient and graft survival were 97.3% and 96.6%. First 30 days of surgical complications included reoperation (31.7%), hepatic artery thrombosis (6.3%), and portal vein thrombosis (3.2%). In the first 90 days, biliary tract complications were reported in 13.6%. Acute cellular rejection during first year was 34.7%. At 1 and 2 years of follow-up, 39.2% and 50.6% had normal liver tests on monotherapy (tacrolimus or sirolimus). Further surgical, survival, allograft function, and complications are detailed.
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Affiliation(s)
- Scott A Elisofon
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, Massachusetts
| | - John C Magee
- Division of Surgery, University of Michigan Transplant Center, Ann Arbor, Michigan
| | - Vicky L Ng
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Transplant and Regenerative Medicine Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Simon P Horslen
- Department of Pediatrics, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, Washington
| | - Vicki Fioravanti
- Section of Hepatology and Liver Transplantation, Children's Mercy Hospital, Kansas City, Missouri
| | | | | | | | - George V Mazariegos
- Division of Pediatric Transplant Surgery, Hillman Center for Pediatric Transplantation, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
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20
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Lenka U, Malik P. Testing the mediating role of POS between perceived AMO framework and deviant behaviours in the Indian IT sector. EJIM 2020. [DOI: 10.1504/ejim.2020.10022894] [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: 11/21/2022]
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21
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Pathy S, Thimmarayappa A, Malik P, Kumar S. EP1.18-25 Definitive Radiotherapy in Lung Cancer – A Glimpse Over the Narrow Window. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2469] [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: 10/25/2022]
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22
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Malik P, Yadav A, Jain D, Pathy S, Mohan A, Khurana S, Kumar S. P1.01-02 Pemetrexed-Carboplatin Versus Paclitaxel (Weekly)-Carboplatin as First Line Chemotherapy in Advanced Non-Squamous NSCLC. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.717] [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: 10/25/2022]
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23
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Pathy S, Thimmarayappa A, Malik P. EP1.01-77 Locally Advanced Non Small Cell Lung Cancer - Treatment Outcome in Real World Setting. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2050] [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: 10/25/2022]
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24
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Kumar S, Sharawat S, Ali A, Malik P, Mohan A, Guleria R. EP1.03-20 Diagnostic and Prognostic Utility of Differentially Expressed Circulating MicroRNAs in Indian NSCLC Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2100] [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: 11/16/2022]
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25
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Saikia J, Malik P, Madan K, Jain D, Bharati S, Gowda M, Nandi S, Deo S, Kumar S. EP1.17-13 Operated Stages I-IIIB NSCLC Among Young Indian Cohorts - Clinical Profile and Outcomes. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Pathy S, Thimmarayappa A, Malik P. EP1.18-26 Treatment Patterns and Clinical Outcomes in Locally Advanced Non Small Cell Lung Cancer: Experience from Tertiary Care Centre. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2470] [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: 11/27/2022]
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27
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Kancharla H, Malik P, Khurana S, Jain D, Kumar S, Pathy S. EP1.01-91 Outcomes with Systemic Chemotherapy with Weekly Regimen in Advanced NSCLC Patients with PS 2 and Above and Without Driver Mutation. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2064] [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: 10/25/2022]
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28
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Mittal A, Malik P, Kumar S, Jain D, Pathy S. P1.18-11 Dose Dense Paclitaxel and Carboplatin as Neoadjuvant Therapy for Resectable/Borderline Resectable NSCLC - A Phase II Trial. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Purpose
This study aims to provide a review of antecedents of destructive deviance and classify them into three levels, namely, personal, interpersonal and organizational level in the proposed integrated conceptual framework. Furthermore, it proposes three levels of interventions to prevent or modify destructive deviance.
Design/methodology/approach
Systematic literature review of the past 23 years was carried out for the current study to identify the antecedents of destructive deviance.
Findings
This study proposes an integrated conceptual framework incorporating three levels of antecedents and interventions for overcoming destructive deviance. Findings classified the antecedents of destructive deviance into three categories, namely, personal, interpersonal and organizational level variables. Similarly, the proposed interventions were classified into three levels, namely, individual (employee resilience, mindfulness), interpersonal (mentoring, peer support) and organizational-level interventions (talent management, internal corporate communication) that organizations should concentrate on to reduce destructive deviance and facilitate health and well-being of employees.
Practical implications
This study posits three-level interventions to reduce or transform negative characteristics and overcome the negative impact of interpersonal and organizational level antecedents on destructive deviance among employees. The suggested three-level interventions not only reduce the negative characteristics and transform negative behaviors but also lay a significant pavement for fostering positive emotions among employees.
Originality/value
This study classifies the antecedents of destructive deviance into three categories, namely, personal, interpersonal and organizational-level antecedents. Further, this study offers three-level interventions for overcoming destructive deviance among employees.
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Suganthi R, Ghosh J, Malik P, Awachat V, Krishnamoorthy P, Nongkhlaw S. Effect of dietary organic selenium (Se) on immune response, hepatic antioxidant status, selenoprotein gene expression and meat oxidative stability in lambs. J Anim Feed Sci 2019. [DOI: 10.22358/jafs/109283/2019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Bansal B, Gowda M, Kumar V, Deo S, Bhoriwal S, Jain D, Malik P, Jee Bharati S, Yadav M, Kumar S. Rate of pathological N2 nodes among patients of NSCLC with cN0/cN1 nodal status on CECT scan: A study from tertiary care hospital in India. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy445.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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32
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Gowda M, Bansal B, Kumar V, Deo S, Bhoriwal S, Jain D, Malik P, Jee Bharati S, Kumar S. P3.09-22 Correlation Between Maximum Tumour Diameter Measurement on CT-Scan and Histopathological Specimen: An Indian Experience. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Shimoji M, Ramaswamy B, Shukoor MI, Benhal P, Broda A, Kulkarni S, Malik P, McCaffrey B, Lafond JF, Nacev A, Weinberg IN, Shapiro B, Depireux DA. Toxicology study for magnetic injection of prednisolone into the rat cochlea. Eur J Pharm Sci 2018; 126:33-48. [PMID: 29933075 DOI: 10.1016/j.ejps.2018.06.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 05/31/2018] [Accepted: 06/12/2018] [Indexed: 01/28/2023]
Abstract
This paper investigates the safety of a novel 'magnetic injection' method of delivering therapy to the cochlea, in a rodent model. In this method of administration, a magnetic field is employed to actively transport drug-eluting superparamagnetic iron-oxide core nanoparticles into the cochlea, where they then release their drug payload (we delivered the steroid prednisolone). Our study design and selection of control groups was based on published regulatory guidance for safety studies that involve local drug delivery. We tested for both single and multiple delivery doses to the cochlea, and found that magnetic delivery did not harm hearing. There was no statistical difference in hearing between magnetically treated ears versus ears that received intra-tympanic steroid (a mimic of a standard-of-care for sudden sensorineural hearing loss), both 2 and 30 days after treatment. Since our treatment is local to the ear, the levels of steroid and iron circulating systemically after our treatment were low, below mass-spectrometry detection limits for the steroid and no different from normal for iron. No adverse findings were observed in ear tissue histopathology or in animal gross behavior. At 2 and 30 days after treatment, inflammatory changes examined in the ear were limited to the middle ear, were very mild in severity, and by day 90 there was ongoing and almost complete reversibility of these changes. There were no ear tissue scarring or hemorrhage trends associated with magnetic delivery. In summary, after conducting a pre-clinical safety study, no adverse safety issues were observed.
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Affiliation(s)
- M Shimoji
- Otomagnetics, Inc., Rockville, MD 20852, United States of America.
| | - B Ramaswamy
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, United States of America
| | - M I Shukoor
- Otomagnetics, Inc., Rockville, MD 20852, United States of America
| | - P Benhal
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, United States of America
| | - A Broda
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, United States of America
| | - S Kulkarni
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, United States of America
| | - P Malik
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, United States of America
| | - B McCaffrey
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, United States of America
| | | | - A Nacev
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, United States of America
| | - I N Weinberg
- Otomagnetics, Inc., Rockville, MD 20852, United States of America
| | - B Shapiro
- Otomagnetics, Inc., Rockville, MD 20852, United States of America; Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, United States of America; Institute for Systems Research (ISR), University of Maryland, College Park, MD 20742, United States of America
| | - D A Depireux
- Otomagnetics, Inc., Rockville, MD 20852, United States of America; Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, United States of America; Institute for Systems Research (ISR), University of Maryland, College Park, MD 20742, United States of America
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Malik P, Lenka U, Sahoo DK. Proposing micro-macro HRM strategies to overcome challenges of workforce diversity and deviance in ASEAN. JMD 2018. [DOI: 10.1108/jmd-11-2016-0264] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PurposeThe purpose of this paper is to propose a conceptual framework associating globalization, workforce diversity, and deviance and suggest micro-macro HRM strategies to overcome challenges associated with the workforce diversity and workplace deviance.Design/methodology/approachA systematic review of literature of past 25 years was carried out with the key word “globalization, workforce diversity, and deviance” from several electronic databases.FindingsFindings propose micro-macro HRM strategies to be adopted by HR practitioners in Association of Southeast Asian Nations (ASEAN) organizations to manage workforce diversity and deviance in the age of globalization.Research limitations/implicationsThe challenges due to workforce diversity may get worse because ASEAN is more incongruent in terms of phases of economic, social, cultural, and political advancement. Therefore, proposed model can be tested and compared in different ASEAN organizations.Originality/valueThere is a dearth of literature associating globalization, workforce diversity, and deviance. This paper bridges this gap by proposing a conceptual framework in the ASEAN context and suggests micro-macro HRM strategies to be adopted by HRM practitioners to overcome associated challenges with workforce diversity and deviance.
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Khurse B, Kumar S, Deo S, Malik P, Kumar V, Kumar R, Jain D. Mediastinal nodal staging of non-small cell lung cancer using PET-CT in a tuberculosis-endemic country. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx086.002] [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: 11/15/2022] Open
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Cymerys J, Słońska A, Brzezicka J, Tucholska A, Chmielewska A, Rola J, Malik P, Bańbura MW. Replication kinetics of neuropathogenic and non-neuropathogenic equine herpesvirus type 1 (EHV-1) strains in primary murine neurons and ED cell line. Pol J Vet Sci 2016; 19:777-784. [PMID: 28092604 DOI: 10.1515/pjvs-2016-0098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Equine herpesvirus type 1 (EHV-1) causes respiratory infections, abortion and neurological disorders in horses. Molecular epidemiology studies have demonstrated that a single-point mutation in DNA polymerase gene, resulting in an amino acid variation (N752/D752), is significantly associated with the neuropathogenic potential of EHV-1 strains. The aim of the study was to elucidate if there are any differences between neuropathogenic (EHV-1 26) and non-neuropathogenic (Jan-E and Rac-H) EHV-1 strains in their ability to infect neuronal cells. For the tested EHV-1 strains, cytopathic effect (CPE) was manifested by changed morphology of cells, destruction of actin cytoskeleton and nuclei degeneration, which led to focal degeneration. Moreover, EHV-1 26 strain caused fusion of the infected cells to form syncytia in culture. Real-time PCR analysis demonstrated that both neuropathogenic and non-neuropathogenic EHV-1 strains replicated in neurons and ED cells (equine dermal cell line) at a similar level. We can assume that a point mutation in the EHV-1 polymerase does not affect viral replication in this cell type.
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Gupta V, Gogia A, Mehta P, Kumar L, Sharma A, Bakhshi S, Thulkar S, Sharma M, Mallick S, Sahoo R, Malik P. 356P Early stage natural killer/T cell lymphoma with local tumor invasiveness treated with a uniform SMILE protocol: An institutional study from India. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw586.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Malik P, Srivastava S. Weight and volume of the thyroid gland in north Indian population. J ANAT SOC INDIA 2015. [DOI: 10.1016/j.jasi.2015.07.271] [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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Chahota R, Gupta S, Bhardwaj B, Malik P, Verma S, Sharma AM. Seroprevalence studies on animal chlamydiosis amongst ruminants in five states of India. Vet World 2015; 8:72-5. [PMID: 27047000 PMCID: PMC4777815 DOI: 10.14202/vetworld.2015.72-75] [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] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 12/08/2014] [Accepted: 12/12/2014] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND AND AIM Animal chlamydiosis, caused by different chlamydial species, is characterized by clinical or subclinical disease manifestations in cattle, buffalo, ovine, caprine and wild animal species. Animal chlamydiosis often remains underdiagnosed or undiagnosed, and its status in many parts of India is still unknown. Hence, the present study was conducted to determine the seroprevalence of animal chlamydiosis amongst ruminant livestock species of five states of India. MATERIALS AND METHODS Totally, 2127 randomly selected serum samples collected from ruminant livestock species viz. cattle (n=430), buffaloes (n=429), sheep (906) and goats (n=362), were tested by agar gel precipitation test for chlamydiosis between 2002 and 2011. Precipitating antigen was prepared from locally isolated strain of Chlamydia psittaci after treatment with sodium deoxycholate. RESULTS The chlamydial seroprevalence detected amongst ruminants in five states of India was: Himachal Pradesh: Cattle-10.90%, sheep-10.60% and goats- 22.46%; Punjab: Cattle-1.45%; Andhra Pradesh: Cattle-2.80%, buffaloes-0.93%, sheep-8.90% and goats-9.46%; Maharashtra: goats-8.33%; Jammu and Kashmir: sheep-12.50%. The mean seroprevalence values of each animal species are: Cattle-4.65%, buffaloes-0.93%, sheep-9.82% and goats-19.33%. CONCLUSION The results indicate the endemic nature of animal chlamydiosis across five states in India. Hence, it requires further extensive studies in other parts of India also using chlamydial species-specific diagnostics to ascertain overall countrywide prevalence of the disease. The zoonotic nature of the chlamydiae of ruminant origin further adds significance to such prevalence studies.
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Affiliation(s)
- R Chahota
- Department of Veterinary Microbiology, DGCN College of Veterinary and Animal Sciences, Palampur, Himachal Pradesh, India
| | - S Gupta
- Department of Veterinary Microbiology, DGCN College of Veterinary and Animal Sciences, Palampur, Himachal Pradesh, India
| | - B Bhardwaj
- Department of Veterinary Microbiology, DGCN College of Veterinary and Animal Sciences, Palampur, Himachal Pradesh, India
| | - P Malik
- Department of Veterinary Microbiology, DGCN College of Veterinary and Animal Sciences, Palampur, Himachal Pradesh, India
| | - S Verma
- Department of Veterinary Microbiology, DGCN College of Veterinary and Animal Sciences, Palampur, Himachal Pradesh, India
| | - And M Sharma
- Department of Veterinary Microbiology, DGCN College of Veterinary and Animal Sciences, Palampur, Himachal Pradesh, India
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Tanaka LL, Dessing JC, Malik P, Prime SL, Crawford JD. The effects of TMS over dorsolateral prefrontal cortex on trans-saccadic memory of multiple objects. Neuropsychologia 2014; 63:185-93. [PMID: 25192630 DOI: 10.1016/j.neuropsychologia.2014.08.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 04/04/2014] [Revised: 07/04/2014] [Accepted: 08/20/2014] [Indexed: 10/24/2022]
Abstract
Humans typically make several rapid eye movements (saccades) per second. It is thought that visual working memory can retain and spatially integrate three to four objects or features across each saccade but little is known about this neural mechanism. Previously we showed that transcranial magnetic stimulation (TMS) to the posterior parietal cortex and frontal eye fields degrade trans-saccadic memory of multiple object features (Prime, Vesia, & Crawford, 2008, Journal of Neuroscience, 28(27), 6938-6949; Prime, Vesia, & Crawford, 2010, Cerebral Cortex, 20(4), 759-772.). Here, we used a similar protocol to investigate whether dorsolateral prefrontal cortex (DLPFC), an area involved in spatial working memory, is also involved in trans-saccadic memory. Subjects were required to report changes in stimulus orientation with (saccade task) or without (fixation task) an eye movement in the intervening memory interval. We applied single-pulse TMS to left and right DLPFC during the memory delay, timed at three intervals to arrive approximately 100 ms before, 100 ms after, or at saccade onset. In the fixation task, left DLPFC TMS produced inconsistent results, whereas right DLPFC TMS disrupted performance at all three intervals (significantly for presaccadic TMS). In contrast, in the saccade task, TMS consistently facilitated performance (significantly for left DLPFC/perisaccadic TMS and right DLPFC/postsaccadic TMS) suggesting a dis-inhibition of trans-saccadic processing. These results are consistent with a neural circuit of trans-saccadic memory that overlaps and interacts with, but is partially separate from the circuit for visual working memory during sustained fixation.
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Affiliation(s)
- L L Tanaka
- Centre for Vision Research and Canadian Action and Perception Network, York University, Toronto, Canada; Neuroscience Graduate Diploma Program and Departments of Psychology, Biology, and Kinesiology and Health Sciences, York University, Toronto, Canada
| | - J C Dessing
- Centre for Vision Research and Canadian Action and Perception Network, York University, Toronto, Canada; School of Psychology, Queen׳s University Belfast, Northern Ireland
| | - P Malik
- Centre for Vision Research and Canadian Action and Perception Network, York University, Toronto, Canada; Neuroscience Graduate Diploma Program and Departments of Psychology, Biology, and Kinesiology and Health Sciences, York University, Toronto, Canada
| | - S L Prime
- Department of Psychology, University of Saskatchewan, Canada
| | - J D Crawford
- Centre for Vision Research and Canadian Action and Perception Network, York University, Toronto, Canada; Neuroscience Graduate Diploma Program and Departments of Psychology, Biology, and Kinesiology and Health Sciences, York University, Toronto, Canada.
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Malik P, Dessing J, Crawford D. rTMS OVER HUMAN EARLY VISUAL CORTEX DEGRADES LOW LEVEL VISUAL FEATURE MEMORY IN THE REMAPPED, NOT PERCEIVED, VISUAL FIELD DURING A TRANSSACCADIC INTEGRATION TASK. J Vis 2014. [DOI: 10.1167/14.10.1227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Riecher-Rössler A, Rybakowski JK, Pflueger MO, Beyrau R, Kahn RS, Malik P, Fleischhacker WW. Hyperprolactinemia in antipsychotic-naive patients with first-episode psychosis. Psychol Med 2013; 43:2571-2582. [PMID: 23590895 DOI: 10.1017/s0033291713000226] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [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] [Indexed: 12/15/2022]
Abstract
BACKGROUND Hyperprolactinemia is frequent in patients with schizophrenic psychoses. It is usually regarded as an adverse effect of antipsychotics but has recently also been shown in patients without antipsychotic medication. Our objective was to test whether hyperprolactinemia occurs in antipsychotic-naive first-episode patients (FEPs). METHOD In the framework of the European First Episode Schizophrenia Trial (EUFEST), 249 out of 498 FEPs were eligible for this study, of whom 74 were antipsychotic naive. All patients were investigated regarding their serum prolactin levels with immunoassays standardized against the 3rd International Reference Standard 84/500. RESULTS Twenty-nine (39%) of the 74 antipsychotic-naive patients showed hyperprolactinemia not explained by any other reason, 11 (50%) of 22 women and 18 (35%) of 52 men. CONCLUSIONS Hyperprolactinemia may be present in patients with schizophrenic psychoses independent of antipsychotic medication. It might be stress induced. As enhanced prolactin can increase dopamine release through a feedback mechanism, this could contribute to explaining how stress can trigger the outbreak of psychosis.
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Haqqi M, Behl P, Day A, Malik P, Matangi M, Falkson C, Johri A. Carotid Artery Plaque Quantification by Two-Dimensional Ultrasound as a Simple Imaging Biomarker to Rule Out Significant Coronary Artery Disease. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.520] [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: 10/26/2022] Open
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Malik P, Gasser RW, Moncayo RC, Kandler C, Koudouovoh-Tripp P, Giesinger J, Sperner-Unterweger B. Bone mineral density and bone metabolism in patients with major depressive disorder without somatic comorbidities. Prog Neuropsychopharmacol Biol Psychiatry 2013; 44:58-63. [PMID: 23380173 DOI: 10.1016/j.pnpbp.2013.01.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 01/25/2013] [Accepted: 01/27/2013] [Indexed: 10/27/2022]
Abstract
BACKGROUND Major depressive disorder (MDD) has been linked with accelerated bone loss leading to the development of low bone mineral density (BMD). Several mechanisms have been discussed as causative factors, e.g. lifestyle, selective serotonin reuptake inhibitor (SSRI) intake, or the influence of proinflammatory cytokines. METHODS In a cross-sectional study of in-patients with a current episode of MDD, without somatic comorbidities, we determined various parameters of bone metabolism, inflammatory parameters and parameters of depression. BMD was measured by dual x-ray absorptiometry. RESULTS Of 50 patients, only one had low BMD in any of the measure sites. Body mass index (BMI) correlated positively with Z-scores. 83.3% of the examined patients had elevated osteoprotegerin (OPG) levels. SSRI intake did not have an effect on BMD. BMD in the femoral neck was significantly lower in smokers. We also found a positive correlation between the level of physical activity and osteocalcin levels. CONCLUSIONS In our sample, young to middle-aged, somatically healthy, and acutely depressed patients with a history of MDD showed no reduction of BMD. This could be due to compensatory mechanisms, as suggested by elevated OPG levels. Physical activity and high BMI could also have served as protective factors. Still, as patients with MDD often suffer from comorbidities or take medication with a negative effect on bone, this population should be appreciated as a high-risk group for the development of osteopenia and osteoporosis.
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Affiliation(s)
- P Malik
- Department of Biological Psychiatry, Medical University, Anichstrasse 35, 6020 Innsbruck, Austria.
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Bera BC, Virmani N, Shanmugasundaram K, Vaid RK, Singh BK, Gulati BR, Anand T, Barua S, Malik P, Singh RK. Genetic Analysis of the Neuraminidase (NA) Gene of Equine Influenza Virus (H3N8) from Epizootic of 2008-2009 in India. Indian J Virol 2013; 24:256-64. [PMID: 24426284 DOI: 10.1007/s13337-013-0137-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Accepted: 05/02/2013] [Indexed: 11/27/2022]
Abstract
The neuraminidase (NA) gene sequences of four Indian equine influenza viruses (EIVs) isolated from epizootic in 2008 and 2009 were analyzed. The phylogenetic relationship and selection pressure of NA genes were established in comparison to other EIVs circulating worldwide along with the domains and motifs of the encoded protein to find out the significance of mutational changes. Among Indian isolates, two amino acid (aa) changes each in Mysore/12/08 (Asn67Tyr & Asp396Gly), Gopeshwar/1/09 (Ile49Val & Asp396Gly), and Uttarkashi/1/09 (Ile49Val & Asp396Gly) isolates were observed in respect to Jammu-Katra/06/08 isolate. Amino acid (aa) sequence analysis also revealed five consistent aa residue changes viz, Gly/Arg40Glu, Tyr66His, Val191Ile, Val209Ile and Asp235Asn in Asian including Indian isolates, Spain/07 and Spain/09 isolates in comparison to other EIVs circulating worldwide. The topology of the phylogenetic tree revealed that the Indian, Chinese, Mongolian and Kazakhstan isolates together formed a subgroup with Yokohama/10 isolate. Spain/07 & Spain/09 isolates showed closest clustering with Asian isolates. This indicates that non-synonymous mutations in Asian isolates with temporal pattern originating from Spain/07, led to the subgroup of the Asian isolates within Florida clade 2 sublineage. The analysis of the predicted secondary structure has not shown any significant difference in the NA proteins of all Indian isolates. Fixed-effects likelihood (FEL) analysis of the selection pressure revealed three codons (43, 355 & 434) under positive selection pressure. The overall evolutionary changes (ω value) of 3.4 indicates NA gene to be under strong selection pressure. Further, seven putative N-glycosylation sites were observed in the NA protein. The mapping of specific aa changes, their mutational and functional analysis need to be carried out to ascertain their role in pathogenecity of the virus.
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Affiliation(s)
- B C Bera
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - N Virmani
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - K Shanmugasundaram
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - R K Vaid
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - B K Singh
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - B R Gulati
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - T Anand
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - S Barua
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - P Malik
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - R K Singh
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
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Malik P, Saha R, Agarwal A. Applicability of Demirjian's method of age assessment in a North Indian female population. Eur J Paediatr Dent 2012; 13:133-135. [PMID: 22762176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIM This study was conducted to determine whether the standards of dental maturation given by Demirjian et al. are applicable to North Indian children and to assess the relationship between dental age and chronological age. METHODS In this study OPGs of 100 females of 8-14 years were taken, and dental age was calculated according to the Demirjian method. Chronological age was recorded and compared to dental age. STATISTICAL ANALYSIS Collected data was statistically analysed. Pearson's correlation coefficient was used to correlate the dental and chronological age of the 100 girls. The statistical analysis was done by using SPSS version 10.0 software (SPSS Inc., Chicago IL). For all tests the p-value of <0.05 was considered for statistical significance. RESULTS A strong correlation was found between chronological and dental ages. CONCLUSION In the present pilot work it was concluded that the Demirjian method of dental age assessment showed high accuracy when applied to North Indian paediatric population.
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Affiliation(s)
- P Malik
- Department of Pedodontics, Kalka dental college, Meerut, India.
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van der Loo JCM, Swaney WP, Grassman E, Terwilliger A, Higashimoto T, Schambach A, Hacein-Bey-Abina S, Nordling DL, Cavazzana-Calvo M, Thrasher AJ, Williams DA, Reeves L, Malik P. Critical variables affecting clinical-grade production of the self-inactivating gamma-retroviral vector for the treatment of X-linked severe combined immunodeficiency. Gene Ther 2012; 19:872-6. [PMID: 22551777 DOI: 10.1038/gt.2012.37] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Patients with X-linked severe combined immunodeficiency (SCID-X1) were successfully cured following gene therapy with a gamma-retroviral vector (gRV) expressing the common gamma chain of the interleukin-2 receptor (IL2RG). However, 5 of 20 patients developed leukemia from activation of cellular proto-oncogenes by viral enhancers in the long-terminal repeats (LTR) of the integrated vector. These events prompted the design of a gRV vector with self-inactivating (SIN) LTRs to enhance vector safety. Herein we report on the production of a clinical-grade SIN IL2RG gRV pseudotyped with the Gibbon Ape Leukemia Virus envelope for a new gene therapy trial for SCID-X1, and highlight variables that were found to be critical for transfection-based large-scale SIN gRV production. Successful clinical production required careful selection of culture medium without pre-added glutamine, reduced exposure of packaging cells to cell-dissociation enzyme, and presence of cations in wash buffer. The clinical vector was high titer; transduced 68-70% normal human CD34(+) cells, as determined by colony-forming unit assays and by xenotransplantation in immunodeficient NOD.CB17-Prkdc(scid)/J (nonobese diabetic/severe combined immunodeficiency (NOD/SCID)) and NOD.Cg-Prkdc(scid) Il2rg(tm1Wjl)/SzJ (NOD/SCID gamma (NSG))) mice; and resulted in the production of T cells in vitro from human SCID-X1 CD34(+) cells. The vector was certified and released for the treatment of SCID-X1 in a multi-center international phase I/II trial.
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Affiliation(s)
- J C M van der Loo
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229-3039, USA.
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Malik P, Rana V, Rehani U. To Evaluate the Relationship between Mandibular Canine Calcification Stages and Skeletal Age. Int J Clin Pediatr Dent 2012; 5:14-9. [PMID: 25206128 PMCID: PMC4093634 DOI: 10.5005/jp-journals-10005-1127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2011] [Accepted: 12/09/2011] [Indexed: 11/23/2022] Open
Affiliation(s)
- Pooja Malik
- Senior Lecturer, Department of Pedodontics, Kalka Dental College Meerut, Uttar Pradesh, India, e-mail:
| | - Vivek Rana
- Professor, Department of Pedodontics, Subharti Dental College Meerut, Uttar Pradesh, India
| | - Usha Rehani
- Professor, Department of Pedodontics, ITS Dental College, Greater Noida, Uttar Pradesh, India
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Saha R, Malik P. Paediatric aesthetic dentistry: a review. Eur J Paediatr Dent 2012; 13:6-12. [PMID: 22455521] [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: 05/31/2023]
Abstract
AIM A number of conditions can lead to aesthetically unacceptable dentitions like dental caries, discoloration, trauma, early loss of teeth, misalignment and any abnormality of shape and size. Today we have a large number of solutions available for aesthetic problems in paediatric dentistry. But the biggest dilemma is: How to choose what is best for a particular patient and that situation? Through this review we try to precisely highlight the various options for aesthetic restorations along with their indications, advantages and disadvantages. METHODS A search and analysis of international works on aesthetics in paediatric dentistry is presented. RESULTS A considerable number of studies have shown that people are more concerned about missing anterior teeth and their replacement than about posterior ones as aesthetics seems to be more important than function. CONCLUSION Dental caries, although not life threatening, causes nagging pain and physical as well as psychological discomfort. Nevertheless, it is clear that the condition is complex and multifactorial and hence it is important to review the various approaches available to restore the lost aesthetics.
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Affiliation(s)
- R Saha
- Pedodontics and Preventive Dentistry Manipal College of Dental Sciences, India
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Carmo M, Arumugam P, Tiwari S, Thrasher A, Risma K, Malik P, Gaspar B, Jordan M. Gene Therapy for Hemophagocytic Lymphohistiocytosis (HLH): Fixing a Critical ‘Circuit Breaker’ in the Immune System. Biol Blood Marrow Transplant 2012. [DOI: 10.1016/j.bbmt.2011.12.524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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