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1.
J Family Med Prim Care ; 11(6): 2334-2339, 2022 Jun.
Article in English | MEDLINE | ID: mdl-36119231

ABSTRACT

Background: The mechanism of myocardial damage in dengue could be the release of inflammatory mediators or the direct action of the dengue virus on myocytes leading to myocarditis. The release of inflammatory mediators is more in a severe form of the disease that correlates to the higher incidence of cardiac manifestations in patients with severe dengue. Aim: To determine the electrocardiographic and two-dimensional (2D)-echocardiographic findings in children with dengue infection and to find a correlation with disease severity. Materials and Methods: A total of 150 children between 1 month and 12 years of age seropositive for dengue Non-specific antigen 1 (NS1) Enzyme linked immunosorbent assay (ELISA) or dengue Immunoglobulin M (IgM) ELISA were studied in the Department of Pediatric Medicine of a tertiary care government hospital. The patients were undertaken for 12 lead electrocardiograms (ECGs) and echocardiograms. Results: Out of the 150 dengue seropositive cases, 61 cases were of mild dengue, 67 cases were of dengue with warning signs (DWSS), and 22 cases were severe dengue cases. Abnormal ECG was found in 78 cases (52%) in a total of 150 cases in terms of rate, prolonged PR interval (interval between atrial depolarization and ventricular activation), ST (ventricular repolarisation)-segment depression, and low-voltage complexes. Abnormal 2D- echocardiography (ECHO) was found in 70 (46.6%) out of 150 in terms of the ejection fraction (EF) <55%, Early diastole/atrial contraction (E/A) ratio <1, and the presence of pericardial effusion. Conclusion: Nearly 50% of the patients have abnormal ECG and ECHO findings, more so in the severe dengue group. There is a statistically significant association of the EF between mild dengue, DWWS with severe dengue (P =0.001).

2.
J Nanosci Nanotechnol ; 19(6): 3583-3590, 2019 Jun 01.
Article in English | MEDLINE | ID: mdl-30744789

ABSTRACT

Raman and SER spectra of 1-H-2 (tolylazo) imidazole (Tai H) are reported for the first time. Monomolecular layer of TaiH is formed on silver nano particles (SNPs) at a concentration of 4.93×10-6 M in Ag-sol. TaiH molecules are adsorbed on to SNPs the through the imidazole N atom and undergo trans-to-cis dark isomerization as evidenced by the appearance of signature cis-peaks and the UV-Vis absorption spectra. Stable non-aggregated SNPs are resulted by the interaction of TaiH and the particle size is significantly reduced. DFT calculations based on single Ag-atom model are in excellent agreement with experimental observations.

3.
Indian J Dermatol ; 58(1): 65-7, 2013 Jan.
Article in English | MEDLINE | ID: mdl-23372217

ABSTRACT

Gianotti-Crosti syndrome is parainfectious exanthematous disease having unique presentation of small papulovesicular eruptions symmetrically over extensor surface of limbs and face in children. Hemorrhagic lesions are very rare and are always localized. Here, a case of EBV-induced Gianotti-Crosti syndrome with extensive hemorrhagic vesicles in a one and half month old infant, possibly induced by Epstein Barr virus, is reported. Neither the involvement of the disease at this early age nor the extensive hemorrhagic vesicles as the predominant presentation is reported before.

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