Publications by authors named "S K Raina"
Parotid enlargement due to common krait (Bungarus caeruleus) envenomation: a case series.
Trans R Soc Trop Med Hyg
January 2025
We describe a series of five patients with bilateral parotid enlargement as a sequalae to envenomation by the common krait (Bungarus caeruleus). Fine-needle aspiration cytology of the parotid gland was performed in four cases. The cytology revealed a mild lymphocytic inflammatory response in a red blood cell mixed proteinaceous background.
View Article and Find Full Text PDFBACKGROUND Second-degree atrioventricular (AV) block is a frequently encountered conduction abnormality on surface electrocardiogram (ECG). However, it does not always imply a block at the AV nodal level. In rare cases, this block can occur below the bundle of His, within the infra-Hisian region of the His-Purkinje system.
View Article and Find Full Text PDFArticle Synopsis
- Astrocytes play crucial and underestimated roles in modulating neuronal circuits, particularly in the striatum, where they regulate dopamine transmission and interact closely with cholinergic interneurons (ChIs).
- The study reveals that striatal astrocytes rapidly excite ChIs and influence dopamine release through nicotinic acetylcholine receptors, operating on very fast timescales.
- A unique anatomical configuration is observed, where ChI somata are closely located to astrocyte somata, allowing for a dynamic interaction that regulates ChI excitability and extracellular calcium, thus impacting overall striatal circuit activity and dopamine signaling.