Abstract
Brain edema is routinely measured using the wet-dry method. Volume, however, is the sum total of all cerebral tissues, including water. Therefore, volumetric change following injury may not be adequately quantified using percentage of edema. We thus tested the hypothesis that dried brains can be reconstituted with water and then re-measured to determine the actual volume. Subarachnoid hemorrhage (SAH) was induced by endovascular perforation in adult male Sprague-Dawley rats (n = 30). Animals were euthanized at 24 and 72 h after evaluation of neurobehavior for determination of brain water content. Dried brains were thereafter reconstituted with equal parts of water (lost from brain edema) and centrifuged to remove air bubbles. The total volume was quantified using hydrostatic (underwater) physics principles that 1 ml water (mass) = 1 cm3 (volume). The amount of additional water needed to reach a preset level marked on 2-ml test tubes was added to that lost from brain edema, and from the brain itself, to determine the final volume. SAH significantly increased both brain water and volume while worsening neurological function in affected rats. Volumetric measurements demonstrated significant brain swelling after SAH, in addition to the brain edema approach. This modification of the “wet-dry” method permits brain volume determination using valuable post hoc dried brain tissue.
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References
Keep RF, Hua Y, Xi G (2012) Brain water content. A misunderstood measurement? Transl Stroke Res 3:263–265
Hasegawa Y, Nakagawa T, Uekawa K, Ma M, Lin B, Kusaka H, Katayama T, Sueta D, Toyama K, Koibuchi N, Kim-Mitsuyama S (2014) Therapy with the combination of amlodipine and irbesartan has persistent preventative effects on stroke onset associated with BDNF preservation on cerebral vessels in hypertensive rats. Transl Stroke Res. doi:10.1007/s12975-014-0383-5
Schlunk F, Schulz E, Lauer A, Yigitkanli K, Pfeilschifter W, Steinmetz H, Lo EH, Foerch C (2014) Warfarin pretreatment reduces cell death and MMP-9 activity in experimental intracerebral hemorrhage. Transl Stroke Res. doi:10.1007/s12975-014-0377-3
Chen Q, Zhang J, Guo J, Tang J, Tao Y, Li L, Feng H, Chen Z (2014) Chronic hydrocephalus and perihematomal tissue injury developed in a rat model of intracerebral hemorrhage with ventricular extension. Transl Stroke Res. doi:10.1007/s12975-014-0367-5
Merali Z, Leung J, Mikulis D, Silver F, Kassner A (2015) Longitudinal assessment of Imatinib’s effect on the blood–brain barrier after ischemia/reperfusion injury with permeability MRI. Transl Stroke Res 6:39–49
Li Q, Khatibi N, Zhang JH (2014) Vascular neural network: the importance of vein drainage in stroke. Transl Stroke Res 5:163–166
Jayakumar AR, Valdes V, Tong XY, Shamaladevi N, Gonzalez W, Norenberg MD (2014) Sulfonylurea receptor 1 contributes to the astrocyte swelling and brain edema in acute liver failure. Transl Stroke Res 5:28–37
Hoda MN, Bhatia K, Hafez SS, Johnson MH, Siddiqui S, Ergul A, Zaidi SK, Fagan SC, Hess DC (2014) Remote ischemic perconditioning is effective after embolic stroke in ovariectomized female mice. Transl Stroke Res 5:484–490
Khanna A, Kahle KT, Walcott BP, Gerzanich V, Simard JM (2014) Disruption of ion homeostasis in the neurogliovascular unit underlies the pathogenesis of ischemic cerebral edema. Transl Stroke Res 5:3–16
Ford AL, An H, Kong L, Zhu H, Vo KD, Powers WJ, Lin W, Lee JM (2014) Clinically relevant reperfusion in acute ischemic stroke: MTT performs better than Tmax and TTP. Transl Stroke Res 5:415–421
Sun D, Kahle KT (2014) Dysregulation of diverse ion transport pathways controlling cell volume homeostasis contribute to neuroglial cell injury following ischemic stroke. Transl Stroke Res 5:1–2
Song M, Yu SP (2014) Ionic regulation of cell volume changes and cell death after ischemic stroke. Transl Stroke Res 5:17–27
Betz AL, Keep RF, Beer ME, Ren XD (1994) Blood–brain barrier permeability and brain concentration of sodium, potassium, and chloride during focal ischemia. J Cereb Blood Flow Metab 14:29–37
Adachi M, Feigin I (1966) Cerebral oedema and the water content of normal white matter. J Neurol Neurosurg Psychiatry 29:446–450
Minamisawa H, Terashi A, Katayama Y, Kanda Y, Shimizu J, Shiratori T, Inamura K, Kaseki H, Yoshino Y (1988) Brain eicosanoid levels in spontaneously hypertensive rats after ischemia with reperfusion: leukotriene C4 as a possible cause of cerebral edema. Stroke 19:372–377
Yang GY, Betz AL, Chenevert TL, Brunberg JA, Hoff JT (1994) Experimental intracerebral hemorrhage: relationship between brain edema, blood flow, and blood- brain barrier permeability in rats. J Neurosurg 81:93–102
Faas FH, Ommaya AK (1968) Brain tissue electrolytes and water content in experimental concussion in the monkey. J Neurosurg 28:137–144
Gerriets T, Stolz E, Walberer M, Muller C, Kluge A, Bachmann A, Fisher M, Kaps M, Bachmann G (2004) Noninvasive quantification of brain edema and the space-occupying effect in rat stroke models using magnetic resonance imaging. Stroke 35:566–571
Marmarou A, Poll W, Shulman K, Bhagavan H (1978) A simple gravimetric technique for measurement of cerebral edema. J Neurosurg 49:530–537
Marshall LF, Bruce DA, Graham DI, Langfitt TW (1976) Alterations in behavior, brain electrical activity, cerebral blood flow, and intracranial pressure produced by triethyl tin sulfate induced cerebral edema. Stroke 7:21–25
Nelson SR, Mantz ML, Maxwell JA (1971) Use of specific gravity in the measurement of cerebral edema. J Appl Physiol 30:268–271
Tengvar C, Forssen M, Hultstrom D, Olsson Y, Pertoft H, Pettersson A (1982) Measurement of edema in the nervous system. Use of Percoll density gradients for determination of specific gravity in cerebral cortex and white matter under normal conditions and in experimental cytotoxic brain edema. Acta Neuropathol 57:143–150
Shohami E, Novikov M, Mechoulam R (1993) A nonpsychotropic cannabinoid, HU-211, has cerebroprotective effects after closed head injury in the rat. J Neurotrauma 10:109–119
Wagner KR, Xi G, Hua Y, Kleinholz M, de Courten-Myers GM, Myers RE, Broderick JP, Brott TG (1996) Lobar intracerebral hemorrhage model in pigs: rapid edema development in perihematomal white matter. Stroke 27:490–497
Sherchan P, Lekic T, Suzuki H, Hasegawa Y, Rolland W, Duris K, Zhan Y, Tang J, Zhang JH (2011) Minocycline improves functional outcomes, memory deficits, and histopathology after endovascular perforation-induced subarachnoid hemorrhage in rats. J Neurotrauma 28:2503–2512
Garcia JH, Wagner S, Liu KF, Hu XJ (1995) Neurological deficit and extent of neuronal necrosis attributable to middle cerebral artery occlusion in rats. Statistical validation. Stroke 26:627–634
Sugawara T, Jadhav V, Ayer R, Chen W, Suzuki H, Zhang JH (2009) Thrombin inhibition by argatroban ameliorates early brain injury and improves neurological outcomes after experimental subarachnoid hemorrhage in rats. Stroke 40:1530–1532
Lekic T, Hartman R, Rojas H, Manaenko A, Chen W, Ayer R, Tang J, Zhang JH (2010) Protective effect of melatonin upon neuropathology, striatal function, and memory ability after intracerebral hemorrhage in rats. J Neurotrauma 27:627–637
Lekic T, Rolland W, Manaenko A, Krafft PR, Kamper JE, Suzuki H, Hartman RE, Tang J, Zhang JH (2013) Evaluation of the hematoma consequences, neurobehavioral profiles, and histopathology in a rat model of pontine hemorrhage. J Neurosurg 118:465–477
Lekic T, Rolland W, Hartman R, Kamper J, Suzuki H, Tang J, Zhang JH (2011) Characterization of the brain injury, neurobehavioral profiles, and histopathology in a rat model of cerebellar hemorrhage. Exp Neurol 227:96–103
Tang J, Liu J, Zhou C, Ostanin D, Grisham MB, Neil Granger D, Zhang JH (2005) Role of NADPH oxidase in the brain injury of intracerebral hemorrhage. J Neurochem 94:1342–1350
Tso MK, Macdonald RL (2014) Subarachnoid hemorrhage: a review of experimental studies on the microcirculation and the neurovascular unit. Transl Stroke Res 5:174–189
Marbacher S, Nevzati E, Croci D, Erhardt S, Muroi C, Jakob SM, Fandino J (2014) The rabbit shunt model of subarachnoid haemorrhage. Transl Stroke Res 5:669–680
Pluta RM, Bacher J, Skopets B, Hoffmann V (2014) A non-human primate model of aneurismal subarachnoid hemorrhage (SAH). Transl Stroke Res 5:681–691
Zhang YP, Cai J, Shields LB, Liu N, Xu XM, Shields CB (2014) Traumatic brain injury using mouse models. Transl Stroke Res 5:454–471
Wada K, Makino H, Shimada K, Shikata F, Kuwabara A, Hashimoto T (2014) Translational research using a mouse model of intracranial aneurysm. Transl Stroke Res 5:248–251
Acknowledgment
This study was partially supported by the National Institutes of Health grant RO1 NS078755 (Dr Zhang).
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Lekic, T., Hardy, M., Fujii, M., McBride, D.W., Zhang, J.H. (2016). Brain Volume Determination in Subarachnoid Hemorrhage Using Rats. In: Applegate, R., Chen, G., Feng, H., Zhang, J. (eds) Brain Edema XVI. Acta Neurochirurgica Supplement, vol 121. Springer, Cham. https://doi.org/10.1007/978-3-319-18497-5_17
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DOI: https://doi.org/10.1007/978-3-319-18497-5_17
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