Sharda P. Singh

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Lipoma of the internal auditory canal is a rare tumor that may be confused clinically with the much more common vestibular schwannoma. We present two cases of lipoma of the internal auditory canal. The clinical presentation is indistinguishable from that of vestibular schwannomas. The high signal intensity on T1-weighted magnetic resonance imaging, both(More)
The lipid peroxidation product 4-hydroxynon-2-enal (4-HNE) forms as a consequence of oxidative stress, and acts as a signaling molecule or, at superphysiological levels, as a toxicant. The steady-state concentration of the compound reflects the balance between its generation and its metabolism, primarily through glutathione conjugation. Using an RNAi-based(More)
Deposition and mobilization of fat in an organism are tightly controlled by multiple levels of endocrine and neuroendocrine regulation. Because these hormonal mechanisms ultimately act by affecting biochemical reactions of fat synthesis or utilization, obesity could be also modulated by altering directly the underlying lipid biochemistry. We have previously(More)
Efficient handling of oxidative stress is critical for the survival of organisms. The orphan nuclear receptor pregnane X receptor (PXR) is important in xenobiotic detoxification through its regulation of phase I and phase II drug-metabolizing/detoxifying enzymes and transporters. In this study we unexpectedly found that the expression of an activated human(More)
BACKGROUND & OBJECTIVES Rickettsial infections remain under-diagnosed due to lack of diagnostic facilities in developing world. Here we present our experience at National Centre for Disease Control, Delhi, about a serosurvey done in Delhi for rickettsial disease with easy to perform low cost, low expertise Weil Felix test. METHODS On the basis of cut-off(More)
4-Hydroxynonenal (4-HNE) mediates many pathological effects of oxidative and electrophilic stress and signals to activate cytoprotective gene expression regulated by NF-E2-related factor 2 (Nrf2). By exhibiting very high levels of 4-HNE-conjugating activity, the murine glutathione transferase alpha 4 (GSTA4-4) helps regulate cellular 4-HNE levels. To(More)
1. Introduction 1.1 Background: Periodic and precise change detection of Earth's surface features is extremely important for understanding relationships and interactions between human and natural phenomena in order to promote better decision making. Remote sensing data are primary sources extensively used for change detection in recent decades. Many change(More)
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