The NIH intramural research program has shifted all non-mission-critical laboratory operations to a maintenance phase in order to promote physical distancing and diminished transmission risk of COVID-19. Effective Monday, March 23, 2020, only mission-critical functions within NIH research laboratories will be supported.
David C. Klein, PhD
Address: Building 6A Room 1A13 6 Center Drive Bethesda, MD 20892
This Gallery includes pictures of sections of the rat brain through the pineal gland which were obtained using radiochemical in situ hybridization methodology. Tissues were obtained at midday and midnight, and in some cases document striking daily changes in the expression of specific genes.