Browsing by Author "Archana Verma"

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A dual-ion imprinted polymer embedded in sol-gel matrix for the ultra trace simultaneous analysis of cadmium and copper
(Elsevier B.V., 2014) Bhim Bali Prasad; Darshika Jauhari; Archana Verma
In simultaneous determination of group of elements, there are inter-metallic interactions which result in a non-linear relationship between the peak current and ionic concentration for each of the element, at bare (unmodified) electrode. To resolve this problem, we have resorted, for the first time, to develop a modified pencil graphite electrode using a typical ion imprinted polymer network (dual-ion imprinted polymer embedded in sol-gel matrix (inorganic-organic hybrid nano-material)) for the simultaneous analysis of a binary mixture of Cd(II) and Cu(II) ions, without any complication of inter-metallic interactions and competitive bindings, in real samples. The adequate resolution of differential pulse anodic stripping voltammetry peaks by 725 mV (cf, 615 mV with unmodified electrode), without any cross-reactivity and the stringent detection limits as low as, 0.050 and 0.034 ng mL-1 (S/N=3) for Cd(II) and Cu(II) ions, respectively by the proposed sensor can be considered useful for the primitive diagnosis of several chronic diseases in clinical settings. © 2013 Elsevier B.V.
Association of udder type traits with single nucleotide polymorphisms in Sahiwal (Bos indicus) and Karan Fries (Bos taurus × Bos indicus) cattle
(Taylor and Francis Ltd., 2023) Rebeka Sinha; Beena Sinha; Ragini Kumari; Vineeth M. R; Nisha Sharma; Archana Verma; Ishwar Dayal Gupta
Udder structure of milking cows is not merely vital to display the visual characteristics, but also important for high milk output and low mastitis risk incidence as well. The present study measured different udder type traits in Sahiwal (Bos indicus) and Karan Fries (Bos taurus × Bos indicus) and investigated their association with single nucleotide polymorphisms in Vitamin D Receptor and Protein Tyrosine Phosphatase, Receptor Type, R genes. GG genotype of SNP rs454303072 was found to have wider rear udder, larger udder circumference, longer distance between fore-rear teats and left-right teats in Karan Fries cattle. Whereas, in Sahiwal cattle, AA genotype of this SNP was found to be associated with the higher and wider rear udder, larger udder circumference and wider udder. AA genotype of SNP rs382671389 was found to be associated with longer fore teat in Karan Fries cattle. The TT and CC genotype of SNP rs435289107 was associated with udder type traits in Karan Fries and Sahiwal cattle respectively. These results suggest that BTA 5 harbors genomic regions associated with udder traits in Bos indicus and Bos indicus x Bos taurus cattle. © 2022 Informa UK Limited, trading as Taylor & Francis Group.
Bilateral internuclear ophthalmoplegia following head injury
(2004) Archana Verma; S. Misra
A 40-year-old female after a closed head injury presented with bilateral internuclear ophthalmoplegia. Attempted convergence was abnormal and MRI revealed the focal hemorrhage in the medial longitudinal fasciculus region by showing bright signal in the a pontomesencephalic region in the midline on both T1 and T2 weighted images. The patient regained normal ocular mobility after six months of the injury. The medial longitudinal fasciculus, which is believed to be lesioned in cases of internuclear ophthalmoplegia, is an unusual and rare finding, particularly in patients victims of head injury without further neurological signs. Isolated internuclear ophthalmoplegia should be considered in the differential diagnosis when one encounters an adduction deficit in a patient suffering head injury. © JAPI 2004.
Early white matter changes in Wilson disease
(2004) Archana Verma; N.N. Singh; S. Misra
We describe a 12 years old male who presented with one year history of cognitive decline with extrapyramidal features. Wilson disease was diagnosed on basis of biochemical studies and MRI. MRI showed increased signal intensity on T2 weighted images in basal ganglia and supratentorial with infratentorial gray and white matter. Our patient developed white matter changes early in course of disease. © JAPI 2004.
Polyneuropathy with osteosclerotic myeloma - POEMS syndrome
(2004) P. Kumar; Archana Verma; D. Kishore; L.D. Parhi; D. Joshi; S. Misra
A 55-years-old male, who presented with insidious onset gradually progressive sensorimotor polyneuropathy, POEMS-syndrome was diagnosed based on polyneuropathy, splenomegaly, hypothyroidism, the presence of IgG-monoclonal serum protein with osteosclerotic lesions and hyperpigmention of skin. Biopsy of the osteosclerotic lesion from the right superior pubic rami was consistent with plasmocytoma. Electrophysiological studies revealed demyelinating sensorimotor neuropathy and biopsy from sural nerve showed demyelinating neuropathy with secondary axonopathy. The patient showed improvement with radiotherapy. This is a rare systemic disease from the clinical spectrum of plasma cell dyscrasias with polyneuropathy. The importance of POEMS syndrome in the differential diagnosis of polyneuropathies has been emphasized. © JAPI 2004.
Transitory alexia without agraphia: A disconnection syndrome due to neurocysticercosis
(2004) Archana Verma; N.N. Singh; Surendra Misra
We describe a 65-year-old male who presented with acute onset inability to read, without any difficulty in writing. A clinical diagnosis of alexia without agraphia was made and the patient was subjected to routine investigations including contrast MRI. MRI showed a ring-enhancing lesion in left occipital area, suggestive of neurocysticercosis supported by quantitative enzyme-linked immunosorbant assay from purified cell fraction of taenia solium cysticerci (PCF--ELISA). Patient was treated with albendazole and prednisolone for one week. The clinical manifestation as well as the radiological finding resolved after treatment.
Udder and teat morphometry in relation to clinical mastitis in dairy cows
(Springer Science and Business Media B.V., 2022) Rebeka Sinha; Beena Sinha; Ragini Kumari; M.R. Vineeth; Kush Shrivastava; Archana Verma; I.D. Gupta
The present study was undertaken to explore the association of occurrence of clinical mastitis with udder and teat morphometry in cattle. The relationship of nine udder and eight teat morphometric traits with the occurrence of clinical mastitis was analysed using a binomial logistic regression model. A significant association of the udder and teat morphometric traits with the occurrence of mastitis was observed both in Karan Fries and Sahiwal cattle. The rear udder height, rear udder width, udder width and fore udder attachment were found to be the important udder morphometric traits associated with the occurrence of mastitis. In both groups, mastitic animals had broader rear udder width, lower rear udder height and loose fore udder attachment with lengthy and thicker teats. The inclusion of udder and teat morphometric traits in the selection and breeding program of Karan Fries and Sahiwal cattle may help in selection of animals for mastitis resistance. © 2022, The Author(s), under exclusive licence to Springer Nature B.V.
Unilateral chorioretinitis: An initial manifestation of subacute sclerosing panencephalitis [2]
(2005) R. Pati; Archana Verma; P. Kumar; L.D. Parhi; Deepika Joshi; S. Misra
[No abstract available]