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  1. Article ; Online: The structure and function of lamin A/C: Special focus on cardiomyopathy and therapeutic interventions.

    Tiwari, Vikas / Alam, Md Jahangir / Bhatia, Madhavi / Navya, Malladi / Banerjee, Sanjay K

    Life sciences

    2024  Volume 341, Page(s) 122489

    Abstract: Lamins are inner nuclear membrane proteins that belong to the intermediate filament family. Lamin A/C lie adjacent to the heterochromatin structure in polymer form, providing skeletal to the nucleus. Based on the localization, lamin A/C provides nuclear ... ...

    Abstract Lamins are inner nuclear membrane proteins that belong to the intermediate filament family. Lamin A/C lie adjacent to the heterochromatin structure in polymer form, providing skeletal to the nucleus. Based on the localization, lamin A/C provides nuclear stability and cytoskeleton to the nucleus and modulates chromatin organization and gene expression. Besides being the structural protein making the inner nuclear membrane in polymer form, lamin A/C functions as a signalling molecule involved in gene expression as an enhancer inside the nucleus. Lamin A/C regulates various cellular pathways like autophagy and energy balance in the cytoplasm. Its expression is highly variable in differentiated tissues, higher in hard tissues like bone and muscle cells, and lower in soft tissues like the liver and brain. In muscle cells, including the heart, lamin A/C must be expressed in a balanced state. Lamin A/C mutation is linked with various diseases, such as muscular dystrophy, lipodystrophy, and cardiomyopathies. It has been observed that a good number of mutations in the LMNA gene impact cardiac activity and its function. Although several works have been published, there are still several unexplored areas left regarding the lamin A/C function and structure in the cardiovascular system and its pathological state. In this review, we focus on the structural organization, expression pattern, and function of lamin A/C, its interacting partners, and the pathophysiology associated with mutations in the lamin A/C gene, with special emphasis on cardiovascular diseases. With the recent finding on lamin A/C, we have summarized the possible therapeutic interventions to treat cardiovascular symptoms and reverse the molecular changes.
    MeSH term(s) Humans ; Lamin Type A/genetics ; Lamin Type A/chemistry ; Lamin Type A/metabolism ; Cardiomyopathies/genetics ; Cardiomyopathies/therapy ; Muscular Dystrophies/genetics ; Muscular Dystrophies/pathology ; Mutation ; Polymers
    Chemical Substances Lamin Type A ; Polymers
    Language English
    Publishing date 2024-02-08
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 3378-9
    ISSN 1879-0631 ; 0024-3205
    ISSN (online) 1879-0631
    ISSN 0024-3205
    DOI 10.1016/j.lfs.2024.122489
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Pest scenario of Helicoverpa armigera (Hub.) on pigeonpea during future climate change periods under RCP based projections in India.

    Srinivasa Rao, M / Rama Rao, C A / Raju, B M K / Subba Rao, A V M / Gayatri, D L A / Islam, Adlul / Prasad, T V / Navya, M / Srinivas, K / Pratibha, G / Srinivas, I / Prabhakar, M / Yadav, S K / Bhaskar, S / Singh, V K / Chaudhari, S K

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 6788

    Abstract: Gram pod borer, Helicoverpa armigera (Hub.) is the major insect pest of pigeonpea and prediction of number of generations (no. of gen.) and generation time (gen. time) using growing degree days (GDD) approach during three future climate change periods ... ...

    Abstract Gram pod borer, Helicoverpa armigera (Hub.) is the major insect pest of pigeonpea and prediction of number of generations (no. of gen.) and generation time (gen. time) using growing degree days (GDD) approach during three future climate change periods viz., Near (NP), Distant (DP) and Far Distant (FDP) periods at eleven major pigeonpea growing locations of India was attempted. Multi-model ensemble of Maximum (Tmax) and Minimum (Tmin) temperature data of four Representative Concentration Pathways viz., RCP 2.6, 4.5, 6.0 and 8.5 of Coupled Model Inter comparison Project 5 (CMIP5) models was adopted here. The increase in projected Tmax and Tmin are significant during 3 climate change periods (CCPs) viz., the NP, DP and FDP over base line (BL) period under four RCP scenarios at all locations and would be higher (4.7-5.1 °C) in RCP 8.5 and in FDP. More number of annual (10-17) and seasonal (5-8) gens. are expected to occur with greater percent increase in FDP (8 to 38%) over base line followed by DP (7 to 22%) and NP (5to 10%) periods with shortened annual gen. time (4 to 27%) across 4 RCPs. The reduction of crop duration was substantial in short, medium and long duration pigeonpeas at all locations across 4 RCPs and 3 CCPs. The seasonal no.of gen. is expected to increase (5 to 35%) with shortened gen. time (4 to 26%) even with reduced crop duration across DP and FDP climate periods of 6.0 and 8.5 RCPs in LD pigeonpea. More no. of gen. of H. armigera with reduced gen. time are expected to occur at Ludhiana, Coimbatore, Mohanpur, Warangal and Akola locations over BL period in 4 RCPs when normal duration of pigeonpeas is considered. Geographical location (66 to 72%), climate period (11 to 19%), RCPs (5-7%) and their interaction (0.04-1%) is vital and together explained more than 90% of the total variation in future pest scenario. The findings indicate that the incidence of H. armigera would be higher on pigeonpea during ensuing CCPs in India under global warming context.
    MeSH term(s) Animals ; Climate Change ; Moths ; Global Warming ; Temperature ; India
    Language English
    Publishing date 2023-04-26
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-32188-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Congenital insensitivity to pain in a 1-year-old boy.

    Navya, M K / Pramod, G V / Sujatha, G P / Ashok, L

    Journal of the Indian Society of Pedodontics and Preventive Dentistry

    2019  Volume 37, Issue 3, Page(s) 308–310

    Abstract: Congenital insensitivity to pain (CIP) is a rare autosomal recessive genetic condition which causes reduced pain sensation, thermal sensation, and habit of self-mutilation. It is a life-threatening condition where due to reduced pain sensation, patient ... ...

    Abstract Congenital insensitivity to pain (CIP) is a rare autosomal recessive genetic condition which causes reduced pain sensation, thermal sensation, and habit of self-mutilation. It is a life-threatening condition where due to reduced pain sensation, patient might not understand the severity of the injury which can eventually lead to death. Such people live a compromised life and can also affect them psychologically. Here, we are reporting a case of an infant with clinical features suggestive of CIP with a mutation in exon 5 of PRDM12 gene. The child has minimal response to pain along with self-mutilation and mental retardation.
    MeSH term(s) Carrier Proteins ; Child ; Humans ; Infant ; Intellectual Disability ; Male ; Nerve Tissue Proteins ; Pain ; Pain Insensitivity, Congenital ; Self Mutilation
    Chemical Substances Carrier Proteins ; Nerve Tissue Proteins ; Prdm12 protein, human
    Language English
    Publishing date 2019-10-04
    Publishing country India
    Document type Case Reports
    ZDB-ID 2164554-1
    ISSN 1998-3905 ; 0970-4388
    ISSN (online) 1998-3905
    ISSN 0970-4388
    DOI 10.4103/JISPPD.JISPPD_340_18
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Development of pH sensitive microparticles of Karaya gum: By response surface methodology.

    Raizaday, Abhay / Yadav, Hemant K S / Kumar, S Hemanth / Kasina, Susmitha / Navya, M / Tashi, C

    Carbohydrate polymers

    2015  Volume 134, Page(s) 353–363

    Abstract: The objective of the proposed work was to prepare pH sensitive microparticles (MP) of Karaya gum using distilled water as a solvent by spray drying technique. Different formulations were designed, prepared and evaluated by employing response surface ... ...

    Abstract The objective of the proposed work was to prepare pH sensitive microparticles (MP) of Karaya gum using distilled water as a solvent by spray drying technique. Different formulations were designed, prepared and evaluated by employing response surface methodology and optimal design of experiment technique using Design Expert(®) ver 8.0.1 software. SEM photographs showed that MP were roughly spherical in shape and free from cracks. The particle size and encapsulation efficiency for optimized MP was found to be between 3.89 and 6.5 μm and 81-94% respectively with good flow properties. At the end of the 12th hour the in vitro drug release was found to be 96.9% for the optimized formulation in pH 5.6 phosphate buffer. Low prediction errors were observed for Cmax and AUC0-∞ which demonstrated that the Frusemide IVIVC model was valid. Hence it can be concluded that pH sensitive MP of Karaya gum were effectively prepared by spray drying technique using aqueous solvents and can be used for treating various diseases like chronic hypertension, Ulcerative Colitis and Diverticulitis.
    Language English
    Publishing date 2015-12-10
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1501516-6
    ISSN 1879-1344 ; 0144-8617
    ISSN (online) 1879-1344
    ISSN 0144-8617
    DOI 10.1016/j.carbpol.2015.08.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Frying of the Dispersion Droplets with Varying Contents of Chickpea Flour and Gum Arabic: Product Characterization and Modeling.

    Shanthilal, J / Babylatha, R / Navya, M C / Chakkaravarthi, A / Bhattacharya, Suvendu

    Journal of food science

    2018  Volume 83, Issue 3, Page(s) 648–660

    Abstract: Dispersions having chickpea (37%, 40%, and 43%, w/w) and gum arabic (0%, 1%, 2%, 3%, 4%, and 5%, w/w) solids were prepared. These dispersion droplets were fried, and the physical, sensory, and microstructural characteristics of the fried products were ... ...

    Abstract Dispersions having chickpea (37%, 40%, and 43%, w/w) and gum arabic (0%, 1%, 2%, 3%, 4%, and 5%, w/w) solids were prepared. These dispersion droplets were fried, and the physical, sensory, and microstructural characteristics of the fried products were determined. The oil content in the fried snack decreased up to 20.3% when the level of chickpea and/or gum in the dispersions was increased. The compression curve for fried snack showed 5 major zones and exhibited the failure phenomenon. Failure force (6.5 to 11.4 N) increased with chickpea flour in the dispersions. Fracture strain (12.0% to 19.5%) indicated that all the fried samples were soft-crisp products. An increase in chickpea flour concentration offered an ovoid/oblong shape of dispersion droplets while falling to oil, and changed the spherical shape of the fried snack. The near-spherical product could be obtained by using 37% chickpea flour containing 0 to 2% of gum arabic, or with the 40% and 0 to 1% combinations. The hue or dominant wavelength increased from 578.5 nm (flour) to 581.0 to 582.7 nm (product) indicating a shift toward red coloration. A porous microstructure with scattered small cavities and large vacuoles of the fried snack were observed; big vacuoles were located in the inner portion of the fried product. The cells were divided into closed and open cells and were characterized by image analysis. The air cells usually had an elliptical shape with varying sizes; the cell wall thickness was between 12 and 80 μm. An artificial neural network (ANN) structure of 2-9-2 was developed for the prediction of sensory overall acceptability and oil content of the fried snack.
    Practical application: Chickpea flour is used in several food preparations. The addition of gum arabic affects the textural and structural characteristics, and the sensory acceptance; the fried dispersion droplets have a lower fat content when gum arabic is used compared to samples fried without the addition of gum arabic. The fried dispersion droplets change their shape with the level of the ingredients used in the dispersion.
    MeSH term(s) Cicer/chemistry ; Cooking ; Flour/analysis ; Gum Arabic/chemistry ; Hot Temperature ; Seeds/chemistry
    Chemical Substances Gum Arabic (9000-01-5)
    Language English
    Publishing date 2018-02-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241615-3
    ISSN 1750-3841 ; 0022-1147
    ISSN (online) 1750-3841
    ISSN 0022-1147
    DOI 10.1111/1750-3841.14052
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Electrocorticography Analysis in Patients With Dual Neurostimulators Supports Desynchronization as a Mechanism of Action for Acute Vagal Nerve Stimulator Stimulation.

    Ernst, Lia D / Steffan, Paul J / Srikanth, Priya / Wiedrick, Jack / Spencer, David C / Datta, Proleta / Joseph, Navya M / Wernovsky, Magda / Becker, Danielle A

    Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society

    2021  Volume 40, Issue 1, Page(s) 37–44

    Abstract: Purpose: Both vagal nerve stimulation (VNS) and responsive neurostimulation (RNS System) are treatment options for medically refractory focal epilepsy. The mechanism of action of both devices remains poorly understood. Limited prior evidence suggests ... ...

    Abstract Purpose: Both vagal nerve stimulation (VNS) and responsive neurostimulation (RNS System) are treatment options for medically refractory focal epilepsy. The mechanism of action of both devices remains poorly understood. Limited prior evidence suggests that acute VNS stimulation may reduce epileptiform activity and cause EEG desynchronization on electrocorticography (ECoG). Our study aims to isolate effects of VNS on ECoG as recorded by RNS System in patients who have both devices, by comparing ECoG samples with and without acute VNS stimulation.
    Methods: Ten 60-second ECoGs each from 22 individuals at 3 epilepsy centers were obtained-5 ECoGs with VNS "off" and 5 ECoGs with VNS "on." Electrocorticograps containing seizures or loss of telemetry connection artifact were excluded from analysis (total of 169 ECoGs were included). Electrocorticographs were analyzed for differences in spectral content by generating average spectrograms for "on" and "off" states and using a linear mixed-effects model to isolate effects of VNS stimulation.
    Results: Acute VNS stimulation reduced average power in the theta band by 4.9%, beta band by 3.8%, and alpha band by 2.5%. The reduction in theta power reached statistical significance with a P value of <0.05.
    Conclusions: Our results provide evidence that acute VNS stimulation results in desynchronization of specific frequency bands (salient decrease in theta and beta bands, smaller decrease in alpha band) in ECoGs recorded by the RNS device in patients with dual (VNS and RNS) neurostimulators. This finding offers support for desynchronization as a theorized mechanism of action of VNS. Further research may lead to future improved neurostimulator efficacy by informing optimal stimulation programming parameters.
    MeSH term(s) Humans ; Electrocorticography ; Vagus Nerve Stimulation ; Epilepsy ; Seizures ; Drug Resistant Epilepsy/therapy ; Treatment Outcome
    Language English
    Publishing date 2021-04-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 605640-4
    ISSN 1537-1603 ; 0736-0258
    ISSN (online) 1537-1603
    ISSN 0736-0258
    DOI 10.1097/WNP.0000000000000847
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Calcipotriol delivery into the skin as emulgel for effective permeation.

    Naga Sravan Kumar Varma, V / Maheshwari, P V / Navya, M / Reddy, Sharath Chandra / Shivakumar, H G / Gowda, D V

    Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society

    2014  Volume 22, Issue 6, Page(s) 591–599

    Abstract: The objective of this work is to formulate and evaluate an emulgel containing calcipotriol for treatment of psoriasis. Emulgels have emerged as a promising drug delivery system for the delivery of hydrophobic drugs. Isopropyl alcohol and polyethylene ... ...

    Abstract The objective of this work is to formulate and evaluate an emulgel containing calcipotriol for treatment of psoriasis. Emulgels have emerged as a promising drug delivery system for the delivery of hydrophobic drugs. Isopropyl alcohol and polyethylene glycol have been employed as permeation enhancers. Formulation chart is made with seven formulations, evaluated for physical parameters, drug content, viscosity, thixotropy, spreadability, extrudability, mucoadhesion, diffusion studies, skin irritation test along with short term stability studies. Carbopolis is reported to have a direct influence on appearance and viscosity of final formulation. The photomicroscopic evaluations showed the presence of spherical globules in size range of 10-15 μm. Rheograms revealed that all the formulations exhibited pseudoplastic flow. Optimized formulation (F6) had shown 86.42 ± 2.0% drug release at the end of 8 h study. The release rate through dialysis membrane and rat skin is higher when compared to commercial calcipotriol ointment. Hence it is concluded that calcipotriol can be delivered topically with enhanced penetration properties when formulated as emulgel.
    Language English
    Publishing date 2014-02-25
    Publishing country Saudi Arabia
    Document type Journal Article
    ZDB-ID 1378024-4
    ISSN 1319-0164
    ISSN 1319-0164
    DOI 10.1016/j.jsps.2014.02.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Quality of life in HIV/AIDS

    Basavaraj K / Navya M / Rashmi R

    Indian Journal of Sexually Transmitted Diseases, Vol 31, Iss 2, Pp 75-

    2010  Volume 80

    Abstract: Given the longevity achievable with current prophylactic and therapeutic strategies for persons with HIV infection, quality of life (QOL) has emerged as a significant medical outcome measure, and its enhancement has an important goal. This review ... ...

    Abstract Given the longevity achievable with current prophylactic and therapeutic strategies for persons with HIV infection, quality of life (QOL) has emerged as a significant medical outcome measure, and its enhancement has an important goal. This review highlights the relevance and complexity of physical, psychological, and social factors as determinants of health-related quality of life in HIV-infected persons. Existing data suggest that physical manifestations, antiretroviral therapy, psychological well-being, social support systems, coping strategies, spiritual well-being, and psychiatric comorbidities are important predictors of QOL in this population. Consequently, the impact of HIV infection on the dimensions of QOL, including physical and emotional well-being, social support systems, and life roles, has emerged as a key issue for persons infected with HIV.
    Keywords AIDS ; antiretroviral therapy ; anxiety ; coping ; depression ; HIV ; psychosocial ; quality of life ; social support ; Infectious and parasitic diseases ; RC109-216 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Internal medicine ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Subject code 360
    Language English
    Publishing date 2010-01-01T00:00:00Z
    Publisher Medknow Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article: Development of pH Sensitive Nanoparticles for Intestinal Drug Delivery Using Chemically Modified Guar Gum Co-Polymer.

    Varma, Vegesna Naga Sravan Kumar / Shivakumar, Hosakote Gurumalappa / Balamuralidhara, Veerna / Navya, Manne / Hani, Umme

    Iranian journal of pharmaceutical research : IJPR

    2016  Volume 15, Issue 1, Page(s) 83–94

    Abstract: The aim of the research work was to chemically modify guargum (GG) as a pH sensitive co-polymer and formulating intestinal targeting ESO nanoparticles (NPs) using the synthesized co-polymer. Poly acrylamide-grafted-guar gum (PAAm-g-GG) co-polymer was ... ...

    Abstract The aim of the research work was to chemically modify guargum (GG) as a pH sensitive co-polymer and formulating intestinal targeting ESO nanoparticles (NPs) using the synthesized co-polymer. Poly acrylamide-grafted-guar gum (PAAm-g-GG) co-polymer was synthesized by free radical polymerization. Chemical modification of PAAm-g-GG by alkaline hydrolysis results in formation of a pH-sensitive co-polymer. The effect of GG and acryl amide (AAm) on grafting was studied. Esomeprazole magnesium (ESO) loaded pH sensitive NPs were prepared by nano-emulsification polymer crosslinking method and characterized. Sixteen formulations were prepared and the concentration of process variables wasvaried to obtain nanoparticles of 200-600 nm. The NPs were found to be homogenous in size distribution. The encapsulation efficiency and drug loading ranged from 33.2% to 50.1% and 12.2% to 17.2% respectively. Particle size, encapsulation efficiency and drug loading increasedalong with co-polymer concentration. In-vitro release studies at pH 1.2 for 2 h, followed by pH 6.8 showed that environment pH significantly affected the drug release. SEM has shown that NPsare spherical with smooth surface. The pH sensitive PAAm-g-GGNPs resisted the initial release of the drug from the drug loaded NPs in acidic pH and delayed the release process to a longer period in alkaline environment.
    Language English
    Publishing date 2016-08-16
    Publishing country Iran
    Document type Journal Article
    ZDB-ID 2578271-X
    ISSN 1726-6890 ; 1735-0328 ; 1735-0328
    ISSN (online) 1726-6890 ; 1735-0328
    ISSN 1735-0328
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Quality of life in HIV/AIDS.

    Basavaraj, K H / Navya, M A / Rashmi, R

    Indian journal of sexually transmitted diseases and AIDS

    2011  Volume 31, Issue 2, Page(s) 75–80

    Abstract: Given the longevity achievable with current prophylactic and therapeutic strategies for persons with HIV infection, quality of life (QOL) has emerged as a significant medical outcome measure, and its enhancement has an important goal. This review ... ...

    Abstract Given the longevity achievable with current prophylactic and therapeutic strategies for persons with HIV infection, quality of life (QOL) has emerged as a significant medical outcome measure, and its enhancement has an important goal. This review highlights the relevance and complexity of physical, psychological, and social factors as determinants of health-related quality of life in HIV-infected persons. Existing data suggest that physical manifestations, antiretroviral therapy, psychological well-being, social support systems, coping strategies, spiritual well-being, and psychiatric comorbidities are important predictors of QOL in this population. Consequently, the impact of HIV infection on the dimensions of QOL, including physical and emotional well-being, social support systems, and life roles, has emerged as a key issue for persons infected with HIV.
    Language English
    Publishing date 2011-04-12
    Publishing country India
    Document type Journal Article
    ISSN 2589-0565
    ISSN (online) 2589-0565
    DOI 10.4103/0253-7184.74971
    Database MEDical Literature Analysis and Retrieval System OnLINE

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