Vivek Kumar

Morphometric Interpretation of Postganglionic Sympathetic Neurons that Innervate Myocardium

The paper analyzes the morphometric features of postganglionic sympathetic neurons innervating the myocardium and finds they are multipolar and larger than those innervating forelimb skin.

High emotional reactivity is associated with activation of a molecularly distinct hippocampal-amygdala circuit modulated by the glucocorticoid receptor

The paper shows that high emotional reactivity in mice is linked to a distinct hippocampal-amygdala circuit influenced by glucocorticoid receptor overexpression.

Effect of selective lesions of nucleus accumbens μ-opioid receptor-expressing cells on heroin self-administration in male and female rats: a study with novel Oprm1-Cre knock-in rats

This study introduces a CRISPR-based Oprm1-Cre knock-in rat to investigate the role of nucleus accumbens MOR-expressing cells in heroin self-administration, finding sex-specific effects on acquisition and effort.

Optimization and quantitative evaluation of fluorescence in situ hybridization chain reaction in clarified fresh-frozen brain tissues

The paper optimizes in situ hybridization chain reaction in fresh-frozen brain tissues and evaluates its performance with clearing methods, finding iDISCO+ provides better labeling uniformity and imaging depth.

Cellular compartment analysis of temporal activity by fluorescent in situ hybridization (catFISH) in the transcardially perfused rat brain

The paper modifies the catFISH protocol to analyze c-Fos mRNA compartmentalization in perfused rat brains, showing distinct nuclear and cytoplasmic distributions in response to stimuli.