All three projects proposed in the program project grant application will utilize the mouse behavioral core facilities including motor and cognitive testing. Motor testing is most often done as a counterpart to histopathology to assess brain damage after stroke, as well as effects of molecular pathway manipulation and putative therapeutic strategies. More recently it has become appreciated that stroke also induces cognitive deficits as well, yet cognitive testing is only occasionally used as a measure of functional outcome after experimental stroke. In contrast, cognitive output is a mainstay of assessment in traumatic brain injury (TBI) models. Most cognitive testing reported involves use of memory acquisition tests such as the Morris water maze, T-maze, novel object recognition, and others. Because each of the individual projects relies on behavioral testing as important experimental outputs, the sensitivity, validity, and reliability of behavioral testing is a central issue in the PPG overall. This is especially true when comparing and interpreting behavioral data across diverse injury models such as stroke and TBI. The goal of the behavioral core is to provide a central facility to each PI that will (1) assist in experimental design and selection of appropriate testing methodology to answer specific questions in individual brain injury models, (2) ensure a uniform non- varying testing environment to provide stable environmental and test conditions longitudinally across experiments, and (3) provide hands on assistance and technical training in motor and cognitive testing for technicians, postdoctoral fellows, graduate students, faculty and others interested in expanding the behavioral testing repertoire of their labs. The behavioral core will be equipped to perform motor (corner test, cylinder test, grid walk, and tape removal) and cognitive (Morris water maze. Y-maze, novel object recognition, and radial arm maze) testing using video camera recorders and Any Maze software. In addition to its availability for all of the Pis, the behaviroal core facility will be open for use by other NIH-funded investigators at MGH as time and space allow.

Public Health Relevance

The purpose of the PPG is to utilize and assess long term regenerative strategies to promote recovery after stroke and traumatic brain injury. Functional (motor and cognitive) outcome measures require robust testing methods that are consistent over time to ensure their reliability and validity. The Behavioral Core will provide equipment and standardized protocols to ensure validity of data across experiments.

National Institute of Health (NIH)
National Institute of Neurological Disorders and Stroke (NINDS)
Research Program Projects (P01)
Project #
Application #
Study Section
National Institute of Neurological Disorders and Stroke Initial Review Group (NSD)
Project Start
Project End
Budget Start
Budget End
Support Year
Fiscal Year
Total Cost
Indirect Cost
Massachusetts General Hospital
United States
Zip Code
Rasmussen, Peter M; Smith, Amy F; Sakadži?, Sava et al. (2017) Model-based inference from microvascular measurements: Combining experimental measurements and model predictions using a Bayesian probabilistic approach. Microcirculation 24:
Kisler, Kassandra; Nelson, Amy R; Rege, Sanket V et al. (2017) Pericyte degeneration leads to neurovascular uncoupling and limits oxygen supply to brain. Nat Neurosci 20:406-416
Yaseen, Mohammad A; Sutin, Jason; Wu, Weicheng et al. (2017) Fluorescence lifetime microscopy of NADH distinguishes alterations in cerebral metabolism in vivo. Biomed Opt Express 8:2368-2385
Tang, Jianbo; Erdener, Sefik Evren; Li, Baoqiang et al. (2017) Shear-induced diffusion of red blood cells measured with dynamic light scattering-optical coherence tomography. J Biophotonics :
Egawa, Naohiro; Lok, Josephine; Washida, Kazuo et al. (2017) Mechanisms of Axonal Damage and Repair after Central Nervous System Injury. Transl Stroke Res 8:14-21
Xing, Changhong; Lo, Eng H (2017) Help-me signaling: Non-cell autonomous mechanisms of neuroprotection and neurorecovery. Prog Neurobiol 152:181-199
Pouliot, Philippe; Gagnon, Louis; Lam, Tina et al. (2017) Magnetic resonance fingerprinting based on realistic vasculature in mice. Neuroimage 149:436-445
Wang, Hui; Magnain, Caroline; Sakadži?, Sava et al. (2017) Characterizing the optical properties of human brain tissue with high numerical aperture optical coherence tomography. Biomed Opt Express 8:5617-5636
Mandeville, Emiri T; Ayata, Cenk; Zheng, Yi et al. (2017) Translational MR Neuroimaging of Stroke and Recovery. Transl Stroke Res 8:22-32
Xu, Kui; Boas, David A; Sakadži?, Sava et al. (2017) Brain Tissue PO2 Measurement During Normoxia and Hypoxia Using Two-Photon Phosphorescence Lifetime Microscopy. Adv Exp Med Biol 977:149-153

Showing the most recent 10 out of 227 publications