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  1. Article: Non-

    Singh, Dharmendra Prasad / Kumar Verma, Rajesh / Sarswat, Swati / Saraswat, Satender

    Current medical mycology

    2022  Volume 7, Issue 2, Page(s) 8–13

    Abstract: Background and purpose: The predominant cause of candidiasis was Candida albicans which has recently changed to non-: Materials and methods: Routine samples for bacterial culture and sensitivity that showed colony characteristics, like : Results: ... ...

    Abstract Background and purpose: The predominant cause of candidiasis was Candida albicans which has recently changed to non-
    Materials and methods: Routine samples for bacterial culture and sensitivity that showed colony characteristics, like
    Results: Mean age of the patients was 38.46 years with a male-female ratio of 1.36:1. In total, 137
    Conclusion: Results of this study suggest varied prevalence and virulence based on geographical locations, even within a subcontinent. It clearly indicates the emergence of the NCAC spp. and their predominance in different body fluids. Identification of
    Language English
    Publishing date 2022-01-09
    Publishing country Iran
    Document type Journal Article
    ZDB-ID 3015705-5
    ISSN 2423-3420 ; 2423-3439
    ISSN (online) 2423-3420
    ISSN 2423-3439
    DOI 10.18502/cmm.7.2.7032
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Effects of Secondary Alveolar Bone Grafting on Maxillary Growth in Cleft Lip or Palate Patients: A Systematic Review and Meta-Analysis.

    Kannan, Phavithrasri / Verma, Sanjeev / Kumar, Vinay / Kumar Verma, Raj / Pal Singh, Satinder

    The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association

    2023  , Page(s) 10556656231188600

    Abstract: To assess the effect of secondary alveolar bone grafting (SABG) on maxillary growth in patients with unilateral cleft lip or palate (UCL/P).: Systematic review and Meta-analysis.: Pubmed, Cochrane Library, Embase, Scopus, Web of Science and manual ... ...

    Abstract To assess the effect of secondary alveolar bone grafting (SABG) on maxillary growth in patients with unilateral cleft lip or palate (UCL/P).
    Systematic review and Meta-analysis.
    Pubmed, Cochrane Library, Embase, Scopus, Web of Science and manual search was performed to assess the maxillary growth following SABG in UCL/P patients.
    Non-syndromic patients with UCL/P.
    Comparison of maxillary growth between patients with UCL/P who underwent SABG and UCL/P patients who had not undergone SABG or non-cleft control.
    39 of the identified 233 articles were assessed for inclusion and exclusion criteria after duplicate removal and title and abstract reading. 7 articles (1 prospective, and 6 retrospective studies) were included in the qualitative analysis and 2 articles were subjected to quantitative analysis. Four studies had a low risk of bias and three studies had a moderate risk of bias. Meta-analysis revealed a significant reduction of SNA and no significant difference in ANB in the SABG group compared to the non-cleft control group(I
    The studies showed a low to moderate risk of bias. SABG causes inhibition of maxillary growth in patients with cleft lip or palate when compared to patients with non-cleft control. Due to high heterogeneity, comparison to cleft control showed insufficient evidence.
    Language English
    Publishing date 2023-07-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1069409-2
    ISSN 1545-1569 ; 0009-8701 ; 1055-6656
    ISSN (online) 1545-1569
    ISSN 0009-8701 ; 1055-6656
    DOI 10.1177/10556656231188600
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Dexmedetomidine-Ketamine or Dexmedetomidine-Midazolam Nebulised Drug Combination as a Premedicant in Children: A Randomised Clinical Trial.

    Dhiman, Tanvi / Verma, Versha / Kumar Verma, Ravinder / Rana, Shelly / Singh, Jai / Badhan, Isha

    Turkish journal of anaesthesiology and reanimation

    2022  Volume 50, Issue 5, Page(s) 380–387

    Abstract: Objective: This study was designed to evaluate the clinical efficacy of 2 low-dose nebulised drug combinations of dexmedetomidine-ketamine and dexmedetomidine-midazolam as a premedication in children scheduled for surgery under general anaesthesia.: ... ...

    Abstract Objective: This study was designed to evaluate the clinical efficacy of 2 low-dose nebulised drug combinations of dexmedetomidine-ketamine and dexmedetomidine-midazolam as a premedication in children scheduled for surgery under general anaesthesia.
    Methods: Sixty children classified as American Society of Anesthesiologists physical status I, aged between 3 and 10, listed to undergo elective surgeries under general anaesthesia were enrolled in this prospective, randomised, and double-blind trial. Patients were randomly allocated to receive nebulised premedication approximately 30 minutes before the induction of anaesthesia. Group DK (n=30) received combined nebulised dexmedetomidine and ketamine (1 μg kg-1+1 mg kg-1 ) and the dexmedetomidine-midazolam (DM) group (n=30) received combined nebulised dexmedetomidine and midazolam (1 μg kg-1+0.1 mg kg-1 ). All children were anaesthetised with a protocolised anaesthesia technique. The primary end point was the level of sedation when the child was first seen in the operating room 30 minutes after nebulisation. The secondary end points were parental separation and ease of induction, ease of acceptance of IV cannula, mask acceptance, postoperative analgesia, and wake-up behaviour.
    Results: Studied groups were comparable in demographic data (age, weight, and sex) and duration of anaesthesia. Level of sedation at 30 minutes was significantly greater in the DM group than in the DK group (P =.013) while the two were comparable in parental separation and ease of induction (P =.808). Group DK exhibited superior ease of acceptance of IV cannula (P =.001), mask acceptance score (P =.001), and postoperative analgesia (P =.021). Hemodynamic parameters and oxygen saturation remained comparable at all time intervals as also the wake-up behaviour.
    Conclusions: The nebulised combination of low-dose ketamine and dexmedetomidine was a superior combination producing acceptable sedation with enhanced ease of IV acceptance, mask acceptance, and postoperative analgesia in children.
    Language English
    Publishing date 2022-10-27
    Publishing country Turkey
    Document type Journal Article
    ISSN 2667-677X
    ISSN 2667-677X
    DOI 10.5152/TJAR.2022.21298
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Xanthomonas oryzae pv. oryzae chemotaxis components and chemoreceptor Mcp2 are involved in the sensing of constituents of xylem sap and contribute to the regulation of virulence-associated functions and entry into rice.

    Kumar Verma, Raj / Samal, Biswajit / Chatterjee, Subhadeep

    Molecular plant pathology

    2018  Volume 19, Issue 11, Page(s) 2397–2415

    Abstract: The Xanthomonas group of phytopathogens causes several economically important diseases in crops. In the bacterial pathogen of rice, Xanthomonas oryzae pv. oryzae (Xoo), it has been proposed that chemotaxis may play a role in the entry and colonization of ...

    Abstract The Xanthomonas group of phytopathogens causes several economically important diseases in crops. In the bacterial pathogen of rice, Xanthomonas oryzae pv. oryzae (Xoo), it has been proposed that chemotaxis may play a role in the entry and colonization of the pathogen inside the host. However, components of the chemotaxis system, including the chemoreceptors involved, and their role in entry and virulence, are not well defined. In this study, we show that Xoo displays a positive chemotaxis response to components of rice xylem sap-glutamine, xylose and methionine. In order to understand the role of chemotaxis components involved in the promotion of chemotaxis, entry and virulence, we performed detailed deletion mutant analysis. Analysis of mutants defective in chemotaxis components, flagellar biogenesis, expression analysis and assays of virulence-associated functions indicated that chemotaxis-mediated signalling in Xoo is involved in the regulation of several virulence-associated functions, such as motility, attachment and iron homeostasis. The ∆cheY1 mutant of Xoo exhibited a reduced expression of genes involved in motility, adhesins, and iron uptake and metabolism. We show that the expression of Xoo chemotaxis and motility components is induced under in planta conditions and is required for entry, colonization and virulence. Furthermore, deletion analysis of a putative chemoreceptor mcp2 gene revealed that chemoreceptor Mcp2 is involved in the sensing of xylem sap and constituents of xylem exudate, including methionine, serine and histidine, and plays an important role in epiphytic entry and virulence. This is the first report of the role of chemotaxis in the virulence of this important group of phytopathogens.
    MeSH term(s) Bacterial Adhesion ; Bacterial Proteins/metabolism ; Biofilms/growth & development ; Chemotaxis/genetics ; Gene Expression Regulation, Bacterial ; Genes, Bacterial ; Iron/metabolism ; Models, Biological ; Multigene Family ; Mutation/genetics ; Operon/genetics ; Oryza/microbiology ; Plant Exudates/metabolism ; Plant Leaves/microbiology ; Siderophores/metabolism ; Transcription, Genetic ; Virulence ; Xanthomonas/cytology ; Xanthomonas/genetics ; Xanthomonas/pathogenicity ; Xylem/metabolism
    Chemical Substances Bacterial Proteins ; Plant Exudates ; Siderophores ; Iron (E1UOL152H7)
    Language English
    Publishing date 2018-08-31
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2020755-4
    ISSN 1364-3703 ; 1364-3703
    ISSN (online) 1364-3703
    ISSN 1364-3703
    DOI 10.1111/mpp.12718
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Xanthomonas oryzae pv. oryzae chemotaxis components and chemoreceptor Mcp2 are involved in the sensing of constituents of xylem sap and contribute to the regulation of virulence‐associated functions and entry into rice

    Kumar Verma, Raj / Samal, Biswajit / Chatterjee, Subhadeep

    Molecular plant pathology. 2018 Nov., v. 19, no. 11

    2018  

    Abstract: The Xanthomonas group of phytopathogens causes several economically important diseases in crops. In the bacterial pathogen of rice, Xanthomonas oryzae pv. oryzae (Xoo), it has been proposed that chemotaxis may play a role in the entry and colonization of ...

    Abstract The Xanthomonas group of phytopathogens causes several economically important diseases in crops. In the bacterial pathogen of rice, Xanthomonas oryzae pv. oryzae (Xoo), it has been proposed that chemotaxis may play a role in the entry and colonization of the pathogen inside the host. However, components of the chemotaxis system, including the chemoreceptors involved, and their role in entry and virulence, are not well defined. In this study, we show that Xoo displays a positive chemotaxis response to components of rice xylem sap—glutamine, xylose and methionine. In order to understand the role of chemotaxis components involved in the promotion of chemotaxis, entry and virulence, we performed detailed deletion mutant analysis. Analysis of mutants defective in chemotaxis components, flagellar biogenesis, expression analysis and assays of virulence‐associated functions indicated that chemotaxis‐mediated signalling in Xoo is involved in the regulation of several virulence‐associated functions, such as motility, attachment and iron homeostasis. The ∆cheY1 mutant of Xoo exhibited a reduced expression of genes involved in motility, adhesins, and iron uptake and metabolism. We show that the expression of Xoo chemotaxis and motility components is induced under in planta conditions and is required for entry, colonization and virulence. Furthermore, deletion analysis of a putative chemoreceptor mcp2 gene revealed that chemoreceptor Mcp2 is involved in the sensing of xylem sap and constituents of xylem exudate, including methionine, serine and histidine, and plays an important role in epiphytic entry and virulence. This is the first report of the role of chemotaxis in the virulence of this important group of phytopathogens.
    Keywords Xanthomonas oryzae pv. oryzae ; adhesins ; biogenesis ; chemoreceptors ; chemotaxis ; crops ; epiphytes ; gene expression ; genes ; histidine ; homeostasis ; iron ; metabolism ; methionine ; mutants ; plant pathogens ; rice ; sap ; serine ; virulence ; xylem ; xylose
    Language English
    Dates of publication 2018-11
    Size p. 2397-2415.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 2020755-4
    ISSN 1364-3703 ; 1464-6722
    ISSN (online) 1364-3703
    ISSN 1464-6722
    DOI 10.1111/mpp.12718
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: An efficient process for the extraction of lutein and chemical characterization of other organic volatiles from marigold (Tagetes erecta L.) flower.

    Kumar Kashyap, Praveen / Singh, Swati / Kumar Singh, Munmun / Gupta, Atul / Tandon, Sudeep / Shanker, Karuna / Kumar Verma, Rajesh / Swaroop Verma, Ram

    Food chemistry

    2022  Volume 396, Page(s) 133647

    Abstract: Marigold (Tagetes erecta L.) petals are the primary industrial source of lutein, which is used as a colouring agent and nutrient supplement to foods. This research extracted marigold petals using different solvents, covering conventional and non-toxic ... ...

    Abstract Marigold (Tagetes erecta L.) petals are the primary industrial source of lutein, which is used as a colouring agent and nutrient supplement to foods. This research extracted marigold petals using different solvents, covering conventional and non-toxic green solvents. The oleoresin, free lutein, and recrystallized lutein yields varied from 8.47-16.67%, 2.56-9.62%, and 1.11-1.61%, respectively. The purity of lutein was achieved up to 92.57% and 97.64% in conventional and newly established green methods, respectively. The present study described an efficient green process to isolate lutein with significantly improved yield (2.56%) and purity (97.33%) over the conventional methods. Based on the results, 2-methyltetrahydrofurancould be a practical green alternative to the traditional toxic solvents for the processing of lutein. Further, the chemical analysis of the essential oil of the residual receptacles obtained after removing petals revealed the presence of important organic volatiles, including piperitone (54.7%) and piperitenone oxide (6.5%), indicating its usefulness for value-addition.
    MeSH term(s) Calendula ; Flowers/chemistry ; Lutein/chemistry ; Solvents ; Tagetes/chemistry
    Chemical Substances Solvents ; Lutein (X72A60C9MT)
    Language English
    Publishing date 2022-07-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2022.133647
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Clarification, malocclusion classification, and comparison of two types of miniplates-request for further information.

    Kumar, Vinay / Pal Singh, Satinder / Verma, Sanjeev / Kumar Verma, Raj

    Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie

    2019  Volume 81, Issue 4, Page(s) 301–302

    Title translation Erläuterung, Klassifikation der Malokklusion und Vergleich von 2 Miniplattentypen – Ersuchen um weitere Informationen.
    MeSH term(s) Humans ; Malocclusion ; Orthodontic Anchorage Procedures
    Language English
    Publishing date 2019-07-03
    Publishing country Germany
    Document type Letter ; Comment
    ZDB-ID 1309470-1
    ISSN 1615-6714 ; 0015-816X ; 1434-5293
    ISSN (online) 1615-6714
    ISSN 0015-816X ; 1434-5293
    DOI 10.1007/s00056-020-00233-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Synthesis and Photophysical Properties of Fluorescence Molecular Probe for Turn-ON-Type Detection of Cytosine Bulge DNA.

    Kumar Verma, Rajiv / Takei, Fumie / Nakatani, Kazuhiko

    Organic letters

    2016  Volume 18, Issue 13, Page(s) 3170–3173

    Abstract: A fluorescent molecule DANP that binds to cytosine bulge DNA and emits characteristic fluorescence was conjugated to pyrene to give a new fluorescence probe PyDANP. Temperature- and solvent-dependent absorption changes showed that DANP and pyrene ... ...

    Abstract A fluorescent molecule DANP that binds to cytosine bulge DNA and emits characteristic fluorescence was conjugated to pyrene to give a new fluorescence probe PyDANP. Temperature- and solvent-dependent absorption changes showed that DANP and pyrene chromophores stacked at room temperature in an aqueous buffer solution and quenched fluorescence. Upon binding of DANP moiety in PyDANP to cytosine bulge DNA, the fluorescence from DANP bound to C-bulge increased by ∼12-fold, showing that PyDANP is a turn-ON probe for the detection of C-bulge DNA.
    MeSH term(s) Base Sequence ; Cytosine/chemistry ; DNA/chemistry ; Fluorescent Dyes/chemical synthesis ; Inverted Repeat Sequences ; Molecular Probes/chemical synthesis ; Naphthyridines/chemical synthesis ; Nucleic Acid Conformation ; Spectrometry, Fluorescence ; Staining and Labeling
    Chemical Substances Fluorescent Dyes ; Molecular Probes ; Naphthyridines ; Cytosine (8J337D1HZY) ; DNA (9007-49-2)
    Language English
    Publishing date 2016--01
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1523-7052
    ISSN (online) 1523-7052
    DOI 10.1021/acs.orglett.6b01378
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Synthesis and Photophysical Properties of Fluorescence Molecular Probe for Turn-ON-Type Detection of Cytosine Bulge DNA

    Kumar Verma, Rajiv / Takei Fumie / Nakatani Kazuhiko

    Organic letters. 2016 July 01, v. 18, no. 13

    2016  

    Abstract: A fluorescent molecule DANP that binds to cytosine bulge DNA and emits characteristic fluorescence was conjugated to pyrene to give a new fluorescence probe PyDANP. Temperature- and solvent-dependent absorption changes showed that DANP and pyrene ... ...

    Abstract A fluorescent molecule DANP that binds to cytosine bulge DNA and emits characteristic fluorescence was conjugated to pyrene to give a new fluorescence probe PyDANP. Temperature- and solvent-dependent absorption changes showed that DANP and pyrene chromophores stacked at room temperature in an aqueous buffer solution and quenched fluorescence. Upon binding of DANP moiety in PyDANP to cytosine bulge DNA, the fluorescence from DANP bound to C-bulge increased by ∼12-fold, showing that PyDANP is a turn-ON probe for the detection of C-bulge DNA.
    Keywords DNA ; absorption ; ambient temperature ; chemical reactions ; cytosine ; fluorescence ; fluorescent dyes ; moieties
    Language English
    Dates of publication 2016-0701
    Size p. 3170-3173.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1523-7052
    DOI 10.1021%2Facs.orglett.6b01378
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Mycobactericidal activity of some micro-encapsulated synthetic Host Defense Peptides (HDP) by expediting the permeation of antibiotic: A new paradigm of drug delivery for tuberculosis.

    Sharma, Ankur / Vaghasiya, Kalpesh / Ray, Eupa / Gupta, Pushpa / Kumar Singh, Amit / Datta Gupta, Umesh / Kumar Verma, Rahul

    International journal of pharmaceutics

    2019  Volume 558, Page(s) 231–241

    Abstract: Resistance to anti-Tuberculosis (anti-TB) drugs is primarily due to unique intrinsic resistance mechanisms that mycobacterium possess. The most important determinant of resistance is a peculiar hydrophobic and multi-layered mycobacterial cell-wall ... ...

    Abstract Resistance to anti-Tuberculosis (anti-TB) drugs is primarily due to unique intrinsic resistance mechanisms that mycobacterium possess. The most important determinant of resistance is a peculiar hydrophobic and multi-layered mycobacterial cell-wall structure with mycolic-acid and wax-D, which restricts permeability of both hydrophobic and hydrophilic drugs into bacteria. In this study, it was supposed that Host Defense peptides (HDP) which are known to permeabilize bacterial membranes may, therefore, help anti-TB antibiotics to target internal sites in bacteria. To test this hypothesis, we examined the effect of suboptimal concentration (10 µg/ml) of selected microencapsulated-HDP (Ub2-MS, K4-MS, and Aurein1.2-MS) with a standard anti-TB drug (Isoniazid, INH, 3 µg/ml). We also examined the combined effect of different concentrations of HDP-MS with a suboptimal concentration of anti-TB drug (INH, 1.5 µg/ml) which showed additive efficacy. A number of cationic HDP were encapsulated in inhalable microspheres (HDP-MS) and characterized for physicochemical and aerodynamic properties. These peptides were further evaluated for molecular mass by MALDI-TOF and random coil in its secondary structure as determined by circular dichroism. The anti-mycobacterial kinetics of selected HDP-MS (Ub2-MS, K4-MS, and Aurein1.2-MS) was evaluated against virulent Mycobacterium tuberculosis (Mtb), both alone and in conjunction with anti-TB drug (INH). HDP-MS exhibited up to ∼3.02 and ∼3.41-log decrease in CFU as compared to blank-MS (drug free) and untreated control group in 96 h. The combination of HDP-MS with a suboptimal concentration of INH (1.5 µg/ml) showed superior antibiotic activity against Mtb. Our findings show that the enhanced efficacy is due to augmentation of membrane permeation by HDP which expedited the entry of TB drug into apparently the impermeant mycobacterial membrane which further enhances the effective efficacy of the drug. This phenomenon can reduce the need for high dosages and represents a novel paradigm for potential clinical applications.
    MeSH term(s) Animals ; Antitubercular Agents/administration & dosage ; Cell Membrane Permeability/drug effects ; Drug Delivery Systems ; Isoniazid/administration & dosage ; Mice ; Microspheres ; Mycobacterium tuberculosis/drug effects ; Peptides/administration & dosage ; Polylactic Acid-Polyglycolic Acid Copolymer/administration & dosage ; RAW 264.7 Cells ; Tuberculosis/drug therapy
    Chemical Substances Antitubercular Agents ; Peptides ; Polylactic Acid-Polyglycolic Acid Copolymer (1SIA8062RS) ; Isoniazid (V83O1VOZ8L)
    Language English
    Publishing date 2019-01-08
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 428962-6
    ISSN 1873-3476 ; 0378-5173
    ISSN (online) 1873-3476
    ISSN 0378-5173
    DOI 10.1016/j.ijpharm.2018.12.076
    Database MEDical Literature Analysis and Retrieval System OnLINE

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