John C. Drummond, MD

E-mail : jdrummond@ucsd.edu

Our group has a continued interest in the intervening variables that account for functional deficits that occur following permanent and reversible cerebral ischemia. Using well defined rat models, such as the middle cerebral artery  ligation, in which behavioral and changes in histopathology in specific brain regions, such as the hippocampus, are quantitatively defined, we have pursued work in several principal areas: i) Cerebral protection by anesthetic agents such as etomidate, isoflurane or thiopental; ii) Relevance of nitric oxide to the evolution of cerebral ischemic injury; iii) Effects of manipulation of oncotic and osmotic pressure on edema formulation after simulated head injury using a fluid percussion injury followed by large volume isovolemic exchange with saline, hetastarch, half normal saline and whole blood; iv) Effects of stroma free hemoglobin on cerebral physiology and its relevance in the setting of ischemic cerebral insult. We also have a continuing interest in methods of clinical monitoring of neural function during surgical interventions. One such line of investigation has focuses on the utility of motor evoked responses.    More recently, we have begun a systematic collaboration with Dr. Martin Marsala in investigating the biology of intracranial cell implants.  Using a variety of cell lines and transfected culture systems, we are examining the growth, and development of these systems in the normal injured hippocampus and cortex.  

References  (Selected From 294 Publications) 

Drummond JC, Head BP, Patel PM.Statins might contribute to postoperative delirium.Anesthesiology. 2010 Aug;113(2):500-1.

Drummond JC, Sturaitis MK. Brain Tissue Oxygenation During Dexmedetomidine Administration in Surgical Patients With Neurovascular Injuries. J Neurosurg Anesthesiol. 2010 Jul 8. [Epub ahead of print]

Drummond JC.Colloid osmotic pressure and the formation of posttraumatic cerebral edema. Anesthesiology. 2010 May;112(5):1079-81. Head BP, Patel HH, Niesman IR, Drummond JC, Roth DM, Patel PM. Inhibition of p75 neurotrophin receptor attenuates isoflurane-mediated neuronal apoptosis in the neonatal central nervous system. Anesthesiology. 2009 Apr;110(4):813-25.

Drummond JC, Dao AV, Roth DM, Cheng CR, Atwater BI, Minokadeh A, Pasco LC, Patel PM. Effect of dexmedetomidine on cerebral blood flow velocity, cerebral metabolic rate, and carbon dioxide response in normal humans. Anesthesiology. 2008 Feb;108(2):225-32.

Feng Z, Davis DP, Sásik R, Patel HH, Drummond JC, Patel PM. Pathway and gene ontology based analysis of gene expression in a rat model of cerebral ischemic tolerance. Brain Res. 2007 Oct 26;1177:103-23.

Inoue S, Davis DP, Drummond JC, Cole DJ, Patel PM. The combination of isoflurane and caspase 8 inhibition results in sustained neuroprotection in rats subject to focal cerebral ischemia. Anesth Analg. 2006 May;102(5):1548-55.

Schubert A, Deogaonkar A, Drummond JC Precordial Doppler probe placement for optimal detection of venous air embolism during craniotomy.  Anesth Analg. 2006 May;102(5):1543-7.

Drummond JC, Englander RN, Gallo CJ.Cerebral ischemia as an apparent complication of anterior cervical discectomy in a patient with an incomplete circle of Willis. Anesth Analg. 2006 Mar;102(3):896-9.