Full Text Journal Articles by
Author Kumari Usha

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Outbreak or pseudo-outbreak? Integrating SARS-CoV-2 sequencing to validate infection control practices in a dialysis facility.

Bridget L Pfaff, Craig S Richmond, Arick P Sabin, Deena M Athas, Jessica C Adams, Megan E Meller, Kumari Usha, Sarah A Schmitz, Brian J Simmons, Andrew J Borgert, Paraic A Kenny,

<h4>Background</h4>The COVID-19 pandemic poses a particularly high risk for End Stage Renal Disease (ESRD) patients so rapid identification of case clusters in ESRD facilities is essential. Nevertheless, with high community prevalence, a series of ESRD patients may test positive contemporaneously for reasons unrelated to their shared ESRD facility. Here we ... Read more >>

Am J Infect Control (American journal of infection control)
[2021, :]

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N-terminal domain of SARS CoV-2 spike protein mutation associated reduction in effectivity of neutralizing antibody with vaccinated individuals.

Yogendra Singh, Neeraj Kumar Fuloria, Shivkanya Fuloria, Vetriselvan Subramaniyan, Dhanalekshmi Unnikrishnan Meenakshi, Srikumar Chakravarthi, Usha Kumari, Navneet Joshi, Gaurav Gupta,

J Med Virol (Journal of medical virology)
[2021, 93(10):5726-5728]

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Determination of Temperature-Dependent Coefficients of Viscosity and Surface Tension of Tamarind Seeds (Tamarindus indica L.) Polymer.

Rishabha Malviya, Sheetal Jha, Neeraj Kumar Fuloria, Vetriselvan Subramaniyan, Srikumar Chakravarthi, Kathiresan Sathasivam, Usha Kumari, Dhanalekshmi Unnikrishnan Meenakshi, Omji Porwal, Akanksha Sharma, Darnal Hari Kumar, Shivkanya Fuloria,

The rheological properties of tamarind seed polymer are characterized for its possible commercialization in the food and pharmaceutical industry. Seed polymer was extracted using water as a solvent and ethyl alcohol as a precipitating agent. The temperature's effect on the rheological behavior of the polymeric solution was studied. In addition ... Read more >>

Polymers (Basel) (Polymers)
[2021, 13(4):]

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Outbreak or pseudo-outbreak? Integrating SARS-CoV-2 sequencing to validate infection control practices in an end stage renal disease facility

Bridget Pfaff, Craig Richmond, Arick Sabin, Deena Athas, Jessica Adams, Megan Meller, Kumari Usha, Sarah Schmitz, Brian Simmons, Andrew Borgert, Paraic Kenny,

<h4>ABSTRACT</h4> <h4>Background</h4> The COVID-19 pandemic of 2020 poses a particularly high risk for End Stage Renal Disease (ESRD) patients and led to a need for facility-wide control plans to prevent introduction and spread of infection within ESRD facilities. Rapid identification of clusters of contemporaneous cases is essential, as these may ... Read more >>

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Sorption and leaching of flucetosulfuron in soil.

Usha Kumari, Shashi B Singh, Neera Singh,

The adsorption-desorption and leaching of flucetosulfuron, a sulfonylurea herbicide, was investigated in three Indian soils. Freundlich adsorption isotherm described the sorption mechanism of herbicide with adsorption coefficients (Kf) ranging from 17.13 to 27.99 and followed the order: Clayey loam > Loam > Sandy loam. The Kf showed positive correlation with organic carbon (OC) (r = 0.910) ... Read more >>

J Environ Sci Health B (Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes)
[2020, 55(6):550-557]

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Gill epithelium of an angler catfish, Chaca chaca (Siluriformes, Chacidae): Enzyme and glycoprotein histochemistry.

Arup Mistri, Usha Kumari, Swati Mittal, Ajay Kumar Mittal,

A series of histochemical techniques have been employed to localize alkaline phosphatase, acid phosphatase, non-specific esterase, catalase and peroxidase; and to visualize and characterize glycoprotein (GPs) moieties in the epithelium of gill arch, gill filaments and secondary lamellae of an angler catfish Chaca chaca. The epithelium of gill arch and ... Read more >>

Anat Histol Embryol (Anatomia, histologia, embryologia)
[2020, 49(1):67-79]

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miR-145 supports cancer cell survival and shows association with DDR genes, methylation pattern, and epithelial to mesenchymal transition.

Siddharth Manvati, Kailash Chandra Mangalhara, Ponnuswamy Kalaiarasan, Rupali Chopra, Gaurav Agarwal, Rakesh Kumar, Sunil Kumar Saini, Monika Kaushik, Ankita Arora, Usha Kumari, Rameshwar Nath Koul Bamezai, Pawan Kumar Dhar,

<h4>Background</h4>Despite several reports describing the dual role of miR-145 as an oncogene and a tumor suppressor in cancer, not much has been resolved and understood.<h4>Method</h4>In this study, the potential targets of miR-145 were identified bio-informatically using different target prediction tools. The identified target genes were validated in vitro by dual ... Read more >>

Cancer Cell Int (Cancer cell international)
[2019, 19:230]

Cited: 1 time

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Facile method to synthesize efficient adsorbent from alumina by nitric acid activation: Batch scale defluoridation, kinetics, isotherm studies and implementation on industrial wastewater treatment.

Usha Kumari, Sushanta K Behera, Hammad Siddiqi, B C Meikap,

The excess amount of fluoride contamination in the groundwater or industrial effluents fosters various health problems. Considering the advantages of adsorption, the current research reports the synthesis of a novel adsorbent (HNAA) by simple and convenient process of nitric acid activation of alumina. The physiochemical characterization (SEM, EDX, XRF, FTIR, ... Read more >>

J Hazard Mater (Journal of hazardous materials)
[2020, 381:120917]

Cited: 1 time

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Characterisation of cholinesterases in mucous secretions and their localisation in epidermis of Labeo rohita and Cirrhinus mrigala.

Ashwini Kumar Nigam, Neeraj Verma, Ayan Srivastava, Usha Kumari, Swati Mittal, Ajay Kumar Mittal,

Cholinesterases are multifunctional enzymes and have been associated with diverse physiological functions in addition to their classical role at synapses. In the present study, cholinesterase (ChE) isozymes have been characterised in mucous secretions and their activity has been localised in the epidermis of Labeo rohita and Cirrhinus mrigala. Zymography using ... Read more >>

Fish Physiol Biochem (Fish physiology and biochemistry)
[2019, 45(4):1355-1366]

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Defluoridation of synthetic and industrial wastewater by using acidic activated alumina adsorbent: characterization and optimization by response surface methodology.

Usha Kumari, Sushanta K Behera, B C Meikap,

Excessive contamination of fluoride in wastewater is the cause of several chronic health problems. For this purpose, an adsorbent was prepared from alumina by acidic activation using sulfuric acid. The current research aims to find the maximum fluoride adsorption (%) from synthetic and industrial wastewater at optimum process parameters by ... Read more >>

J Environ Sci Health A Tox Hazard Subst Environ Eng (Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering)
[2019, 54(1):79-88]

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Keratinization and mucogenesis in the epidermis of an angler catfish Chaca chaca (Siluriformes, Chacidae): A Histochemical and fluorescence microscope investigation.

Arup Mistri, Usha Kumari, Swati Mittal, Ajay Kumar Mittal,

The present study describes keratinization and mucogenesis in the epidermis of an angler catfish Chaca chaca, using a series of immunochemical, fluorescence and histochemical methods. The epidermis is primarily mucogenic and shows characteristic specialised structures at irregular intervals. These structures are identified keratinized in nature. The superficial layer epithelial cells ... Read more >>

Zoology (Jena) (Zoology (Jena, Germany))
[2018, 131:10-19]

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A novel acid modified alumina adsorbent with enhanced defluoridation property: Kinetics, isotherm study and applicability on industrial wastewater.

Usha Kumari, Sushanta K Behera, B C Meikap,

Excessive fluoride contamination in ground and surface water is hazardous to human health. Adsorptive removal is a better option for defluoridation due to its simplicity and efficient working property. In the current research, an attempt was made for the removal of fluoride ions from wastewater by a novel adsorbent synthesized ... Read more >>

J Hazard Mater (Journal of hazardous materials)
[2019, 365:868-882]

Cited: 3 times

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Immunohistochemical localization of nitric oxide synthase (NOS) isoforms in epidermis and gill epithelium of an angler catfish, Chaca chaca (Siluriformes, Chacidae).

Arup Mistri, Usha Kumari, Swati Mittal, Ajay Kumar Mittal,

The present study is concerned with the expression and localization of nitric oxide synthase (NOS) isoforms, nNOS, eNOS and iNOS in the epidermis and the gill epithelium of Chaca chaca by means of immunohistochemical techniques. nNOS immunoreactivity was observed in the outer layer epithelial cells of the epidermis, outer epithelium ... Read more >>

Tissue Cell (Tissue & cell)
[2018, 55:25-30]

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Morphological specializations of the epidermis of an angler catfish Chaca chaca (Siluriformes, Chacidae) in relation to its ecological niche: A scanning electron microscopic investigation.

Arup Mistri, Usha Kumari, Swati Mittal, Ajay Kumar Mittal,

The present work was undertaken with the aim to deduce morphological adaptations in skin of an angler catfish Chaca chaca by means of scanning electron microscopy. The fish is nocturnal, bottom dwelling, sluggish, ambush predator, lives in sand, mud, or soft substrates often buried and camouflaged for protection and to ... Read more >>

Microsc Res Tech (Microscopy research and technique)
[2018, 81(5):439-448]

Cited: 1 time

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Alterations in the activity of certain enzymes in the gills of a carp Labeo rohita exposed to an azo dye, Eriochrome black T: a biochemical investigation.

Ayan Srivastava, Usha Kumari, Ashwini Kumar Nigam, Swati Mittal, Ajay Kumar Mittal,

In Labeo rohita exposed to sub-lethal concentrations of an azo dye, Eriochrome black T for 4 days, gills show considerable alterations in the activity of certain metabolic enzymes-alkaline phosphatase, acid phosphatase, carboxylesterase, lactate dehydrogenase, and succinate dehydrogenase; and antioxidant enzymes-catalase and peroxidase. The activities of alkaline phosphatase, acid phosphatase, carboxylesterase, succinate ... Read more >>

Fish Physiol Biochem (Fish physiology and biochemistry)
[2018, 44(2):629-637]

Cited: 1 time

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Effect of asiaticoside on the healing of skin wounds in the carp Cirrhinus mrigala: An immunohistochemical investigation.

Neeraj Verma, Usha Kumari, Swati Mittal, Ajay Kumar Mittal,

In the present study effect of asiaticoside, on healing of skin wounds in Cirrhinus mrigala is reported. Skin wound, approx. 2mm in diameter was excised using sterile disposable biopsy punch. Immediately after infliction of the wound, epidermis from wound edge starts migrating as thin sheet toward wound gap. Fronts of ... Read more >>

Tissue Cell (Tissue & cell)
[2017, 49(6):734-745]

Cited: 6 times

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Chronic fluoride exposure exacerbates headkidney pathology and causes immune commotion in Clarias gariepinus.

Rashmi Singh, Md Arafat Hussain, Jai Kumar, Manmohan Kumar, Usha Kumari, Shibnath Mazumder,

The current study was aimed to understand the effects of chronic fluoride exposure on fish immune system. African sharp tooth catfish (Clarias gariepinus) were exposed to 73.45mg/L of fluoride corresponding to 1/10 96h LC<sub>50</sub> for 30 d and the effects on general fish health and several immune parameters were studied. ... Read more >>

Aquat Toxicol (Aquatic toxicology (Amsterdam, Netherlands))
[2017, 192:30-39]

Cited: 1 time

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Chronic endosulfan exposure impairs immune response rendering Clarias gariepinus susceptible to microbial infection.

Usha Kumari, Rashmi Singh, Shibnath Mazumder,

Endosulfan, a persistent organochlorine insecticide affects several off-target organisms including fish though the underlying mechanisms remain obscure. In the present study, we monitored the effect of chronic endosulfan exposure on headkidney (HK), an important immune organ in fish and on fish immune system thereof. Clarias gariepinus were exposed to a ... Read more >>

Aquat Toxicol (Aquatic toxicology (Amsterdam, Netherlands))
[2017, 191:42-49]

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Scanning electron microscope investigation on the process of healing of skin wounds in Cirrhinus mrigala.

Neeraj Verma, Usha Kumari, Swati Mittal, Ajay Kumar Mittal,

Present scanning electron microscope study, reports healing of excised skin wounds in Cirrhinus mrigala. Healing process of wounds, inflicted on head skin, using biopsy punch was observed at intervals-0 hour (h), 1, 2, 4, 6, 12 h, 1 day (d) 2 and 4 d. Accumulation of mucus in wound region within 1h after infliction ... Read more >>

Microsc Res Tech (Microscopy research and technique)
[2017, 80(11):1205-1214]

Cited: 3 times

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Wound‐healing potential of curcumin in the carp, Labeo rohita

Usha Kumari, Neeraj Verma, Ashwini Kumar Nigam, Swati Mittal, Ajay Kumar Mittal,

In this investigation, the effect of dietary administration of curcumin on the healing of skin wound in fish, Labeo rohita, has been reported. Fish were divided into three groups: control group (fish without skin wound), sham group (fish with skin wound without curcumin treatment) and curcumin‐treated group (fish with skin ... Read more >>

Aquac Res (Aquaculture research)
[2017, 48(5):2411-2427]

Cited: 2 times

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Alterations in the skin of Labeo rohita exposed to an azo dye, Eriochrome black T: a histopathological and enzyme biochemical investigation.

Ayan Srivastava, Neeraj Verma, Arup Mistri, Brijesh Ranjan, Ashwini Kumar Nigam, Usha Kumari, Swati Mittal, Ajay Kumar Mittal,

Histopathological changes and alterations in the activity of certain metabolic and antioxidant enzymes were analyzed in the head skin of Labeo rohita, exposed to sublethal test concentrations of the azo dye, Eriochrome black T for 4 days, using 24 h renewal bioassay method. Hypertrophied epithelial cells, increased density of mucous goblet cells, ... Read more >>

Environ Sci Pollut Res Int (Environmental science and pollution research international)
[2017, 24(9):8671-8681]

Cited: 2 times

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Surface ultrastructure of gills in relation to the feeding ecology of an angler catfish Chaca chaca (Siluriformes, Chacidae).

Arup Mistri, Neeraj Verma, Usha Kumari, Swati Mittal, Ajay Kumar Mittal,

Surface ultrastructure of the gills of the angler catfish Chaca chaca was investigated to unravel the adaptive modifications associated with the feeding ecology of the fish. The fish is often found in mud or in soft substrates where they remain buried both for protection and to feed. Gill rakers present ... Read more >>

Microsc Res Tech (Microscopy research and technique)
[2016, 79(10):973-981]

Cited: 1 time

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Inducible headkidney cytochrome P450 contributes to endosulfan immunotoxicity in walking catfish Clarias gariepinus.

Usha Kumari, Nidhi Srivastava, Asha Shelly, Preeti Khatri, Sarat N, Dileep Kumar Singh, Shibnath Mazumder,

The effect of endosulfan metabolites on fish immune system is not well known. It is also not clear whether endosulfan accumulates in fish immune organs and undergoes metabolic biotransformation in situ. In the present study we investigated the role of headkidney (HK), an important fish immune organ on endosulfan metabolism ... Read more >>

Aquat Toxicol (Aquatic toxicology (Amsterdam, Netherlands))
[2016, 179:44-54]

Cited: 3 times

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Characterization of carboxylesterase in skin mucus of Cirrhinus mrigala and its assessment as biomarker of organophosphate exposure.

Ashwini Kumar Nigam, Usha Kumari, Swati Mittal, Ajay Kumar Mittal,

Presence of carboxylesterase (CbE) activity in the skin mucus of Cirrhinus mrigala was investigated. CbE activity in skin mucus showed higher substrate preference for α-naphthyl acetate over p-nitrophenyl acetate. Four CbE isozymes-CbE-1, CbE-2, CbE-3, and CbE-4 were observed in skin mucus during zymography. The isozyme CbE-4 was characterized as typical ... Read more >>

Fish Physiol Biochem (Fish physiology and biochemistry)
[2014, 40(3):635-644]

Cited: 4 times

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The first evidence of cholinesterases in skin mucus of carps and its applicability as biomarker of organophosphate exposure.

Ashwini Kumar Nigam, Nidhi Srivastava, Amita Kumari Rai, Usha Kumari, Ajay Kumar Mittal, Swati Mittal,

The presence of cholinesterase (ChE) activity in skin mucus of three carps, Cirrhinus mrigala, Labeo rohita, and Catla catla and its applicability as biomarker of the organophosphorus insecticide exposure were investigated. Biochemical characterization, using specific substrates and inhibitors, indicated that measured esterase activity in skin mucus was mainly owing to ... Read more >>

Environ Toxicol (Environmental toxicology)
[2014, 29(7):788-796]

Cited: 5 times

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