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https://www.readbyqxmd.com/read/28520567/persistent-hypotension-and-cerebral-swelling-resulting-from-mesenteric-traction-syndrome-after-omental-to-pial-pedicle-flap-transfer-in-a-young-woman-with-refractory-moyamoya-disease-a-case-report
#1
Harvey J Woehlck, Suneeta Gollapudy, Christopher J Roberts, Akinwunmi Oni-Orisan, Raphael H Sacho, Paul S Pagel
Superficial temporal arterial to middle cerebral arterial anastomosis is often the initial surgical treatment of Moyamoya disease. In refractory cases, placing a pedicle flap of omentum over the ischemic brain has resulted in clinical improvement or stabilization of symptoms. We present a case of persistent mesenteric traction syndrome manifested by hypotension unresponsive to conventional doses of vasopressors during and after pulling the omentum to the brain. As prostacyclin is a major mediator of hypotension from mesenteric traction syndrome and also a cerebral vasodilator, we discuss the possibility that brain swelling may be a manifestation of mesenteric traction syndrome...
May 17, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28515764/the-effect-of-epicatechin-on-oxidative-stress-and-mitochondrial-damage-induced-by-homocycteine-using-isolated-rat-hippocampus-mitochondria
#2
Fatemeh Shaki, Yaghoub Shayeste, Mohammad Karami, Esmaeil Akbari, Mahdi Rezaei, Ramin Ataee
Oxidative stress and mitochondrial dysfunction are the main suggested mechanisms for neurodegenerative diseases. In this study, we have evaluated the effects of epicatechin (EC) on mitochondrial damage induced by homocycteine (Hcy) using isolated rat hippocampus mitochondria in vivo. EC (50 mg/kg) was gavaged daily for a period of 10 days, starting 5 days prior to Hcy (0.5 μmol/μL) intra hippocampus injection in rats. Mitochondria were isolated from brain by different centrifuge techniques. Mitochondrial function was assayed by MTT test...
April 2017: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28512614/postoperative-contralateral-hematoma-in-patient-with-acute-traumatic-brain-injury
#3
Myeong-Jin Oh, Je Hoon Jeong, Dong-Seong Shin, Sun-Chul Hwang, Soo Bin Im, Bum-Tae Kim, Won-Han Shin
OBJECTIVE: Head injury is a leading cause of death and disability in subjects who suffer a traumatic accident. Contralateral hematomas after surgery for traumatic brain injury are rare. However, an unrecognized, these hematomas can cause devastating results. We presented our experience of these patients and discussed diagnosis and management. METHODS: This study included 12 traumatic patients with acute traumatic brain injury who developed delayed contralateral hematoma after evacuation of an acute hematoma...
April 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/28508375/an-integration-of-decision-tree-and-visual-analysis-to-analyze-intracranial-pressure
#4
Soo-Yeon Ji, Kayvan Najarian, Toan Huynh, Dong Hyun Jeong
In Traumatic Brain Injury (TBI), elevated Intracranial Pressure (ICP) causes severe brain damages due to hemorrhage and swelling. Monitoring ICP plays an important role in the treatment of TBI patients because ICP is considered a strong predictor of neurological outcome and a potentially amenable method to treat patients. However, it is difficult to predict and measure accurate ICP due to the complex nature of patients' clinical conditions. ICP monitoring for severe TBI patient is a challenging problem for clinicians because traditionally known ICP monitoring is an invasive procedure by placing a device inside the brain to measure pressure...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28503483/importance-of-hematoma-removal-ratio-in-ruptured-middle-cerebral-artery-aneurysm-surgery-with-intrasylvian-hematoma
#5
Dal-Sung Ryu, Yu Shik Shim
OBJECTIVE: Ruptured middle cerebral artery (MCA) aneurysm with intrasylvian hematoma usually accompanied by progressive cerebral swelling with poorer outcomes. The authors present characteristics and importance of intrasylvian hematoma removal in the aneurysm surgery. MATERIALS AND METHODS: From 2012 February to 2014 March, 24 aneurysm surgeries for ruptured MCA aneurysms with intrasylvian hematoma were performed in the authors' clinic. The patients were classified according to three groups...
March 2017: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/28503467/medial-lemniscus-tract-lesion-after-high-voltage-electrical-injury-a-case-report
#6
Chul-Hyun Cho, Dong Gyu Lee
We present the case of a 33-year-old man who experienced a 10,000-V electrical shock when working with electrical wiring. He suffered third-degree burns on his scalp at the right occiput (entry wound) and on his left arm (exit would), and a second-degree burn on his left foot (exit wound). He presented with severe spasticity of both lower extremities, motor weakness with a Medical Research Council grade of 3, and sensory impairments below thoracic level 11 that included an inability to sense light touch and defects in proprioception...
April 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28503134/aquaporin-4-mediated-glutamate-induced-astrocyte-swelling-is-partially-mediated-through-metabotropic-glutamate-receptor-5-activation
#7
Zhongfang Shi, Wei Zhang, Yang Lu, Yi Lu, Lixin Xu, Qing Fang, Min Wu, Mei Jia, Yujiao Wang, Liping Dong, Xu Yan, Shaohua Yang, Fang Yuan
Astrocytes are one of the most abundant cell types in the mammalian central nervous system (CNS), and astrocyte swelling is the primary event associated with brain edema. Glutamate, the principal excitatory amino acid neurotransmitter in the CNS, is released at high levels after brain injury including cerebral ischemia. This leads to astrocyte swelling, which we previously demonstrated is related to metabotropic glutamate receptor (mGluR) activation. Aquaporin 4 (AQP4), the predominant water channel in the brain, is expressed in astrocyte endfeet and plays an important role in brain edema following ischemia...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28501474/a-case-of-mumps-related-acute-encephalopathy-with-biphasic-seizures-and-late-reduced-diffusion
#8
Kyoko Hazama, Takashi Shiihara, Hiroyuki Tsukagoshi, Shunji Hasegawa, Yuri Dowa, Mio Watanabe
BACKGROUND: Mumps is a common childhood viral disease characterized by fever and swelling of the parotid gland. The prognosis is generally good, although some complications, such as encephalitis (0.1%), exist. Acute encephalopathy with biphasic seizures and late reduced diffusion is the most common type of acute encephalopathy. However, this type of encephalopathy has not been reported in association with mumps infection. PATIENT: A previously healthy 3-year-old Japanese boy had a brief convulsion after fever for 3days, and then had conscious disturbance and parotitis...
May 10, 2017: Brain & Development
https://www.readbyqxmd.com/read/28490320/astaxanthin-protects-astrocytes-against-trauma-induced-apoptosis-through-inhibition-of-nkcc1-expression-via-the-nf-%C3%AE%C2%BAb-signaling-pathway
#9
Mingkun Zhang, Zhenwen Cui, Hua Cui, Yong Wang, Chunlong Zhong
BACKGROUND: Astaxanthin (ATX) is a carotenoid pigment with pleiotropic pharmacological properties that is seen as a possible drug for treating cerebral ischemic injury and subarachnoid hemorrhage. Na(+)-K(+)-2Cl(-) co-transporter-1 (NKCC1), an intrinsic membrane protein expressed by many cell types, is activated by various insults, leading to the formation of cell swelling and brain edema. We previously established that ATX attenuated brain edema and improved neurological outcomes by modulating NKCC1 expression after traumatic brain injury in mice...
May 10, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28489334/diagnosis-of-copan-by-whole-exome-sequencing-waking-up-a-sleeping-tiger-s-eye
#10
Christina Evers, Angelika Seitz, Birgit Assmann, Thomas Opladen, Stephanie Karch, Katrin Hinderhofer, Martin Granzow, Nagarajan Paramasivam, Roland Eils, Nicolle Diessl, Claus R Bartram, Ute Moog
Neurodegeneration with brain iron accumulation (NBIA) is a group of neurodegenerative disorders characterized by iron accumulation in the basal ganglia. Recently, mutations in CoA synthase (COASY) have been identified as a cause of a novel NBIA subtype (COASY Protein-Associated Neurodegeneration, CoPAN) in two patients with dystonic paraparesis, parkinsonian features, cognitive impairment, behavior abnormalities, and axonal neuropathy. COASY encodes an enzyme required for Coenzyme A (CoA) biosynthesis. Using whole exome sequencing (WES) we identified compound heterozygous COASY mutations in two siblings with intellectual disability, ataxic gait, progressive spasticity, and obsessive-compulsive behavior...
May 10, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28475625/plasmodium-falciparum-histidine-rich-protein-ii-causes-vascular-leakage-and-exacerbates-experimental-cerebral-malaria-in-mice
#11
Priya Pal, Amanda E Balaban, Michael S Diamond, Photini Sinnis, Robyn S Klein, Daniel E Goldberg
A devastating complication of Plasmodium falciparum infection is cerebral malaria, in which vascular leakage and cerebral swelling lead to coma and often death. P. falciparum produces a protein called histidine-rich protein II (HRPII) that accumulates to high levels in the bloodstream of patients and serves as a diagnostic and prognostic marker for falciparum malaria. Using a human cerebral microvascular endothelial barrier model, we previously found that HRPII activates the endothelial cell inflammasome, resulting in decreased integrity of tight junctions and increased endothelial barrier permeability...
2017: PloS One
https://www.readbyqxmd.com/read/28462199/giant-cell-tumor-of-temporomandibular-joint-masquerading-as-temporomandibular-joint-pain-dysfunction-syndrome-a-rare-case-report
#12
Jo Ee Sam, Rullyandrianto Pan Nuriman Rachmat, Cri Saiful Jordan Melano, Nasser Abdul Wahab
Giant cell tumor (GCT) of the craniofacial bones has been reported but they are not common. This tumor occurs more often in women than in men and predominantly affects patients around the third to fifth decade of life. GCTs are generally benign but can be locally aggressive as well. We report a case of GCT involving the temporomandibular joint (TMJ), which was initially thought to be temporomandibular disorder (TMD). A 22-year-old female presented with swelling and pain over the right temporal region for 18 months associated with jaw locking and clicking sounds...
April 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28458085/the-importance-of-optic-nerve-sheath-hemorrhage-as-a-postmortem-finding-in-cases-of-fatal-abusive-head-trauma-a-13-year-study-in-a-tertiary-hospital
#13
Supot Puanglumyai, Suree Lekawanvijit
Fatal abusive head trauma is a major cause of death in children and toddlers who suffer from cruel physical abuse. Postmortem differentiation of fatal abusive head trauma from accidental head trauma can be a complicated process. This consecutive case series study aimed to determine the role of subdural optic nerve sheath hemorrhage (ONSH) in 70 autopsy cases of children ≤3 years old in making this differentiation. The study took place over a 13 year period (between August 1st 2003 and July 31st 2016) at a tertiary hospital in Thailand...
April 19, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28443599/a-pott-s-puffy-tumor-associated-with-epidural-cutaneous-fistula-and-epidural-abscess-case-report
#14
Aleksandar Perić, Milanko Milojević, Dražen Ivetić
BACKGROUND: Pott's puffy tumor is characterized by a fluctuate swelling of the frontal region as a result of osteomyelitis of the frontal bone. This inflammatory lesion may propagate endocranially resulting in acute meningitis, epidural abscess, subdural empyema, cavernous sinus trombophlebitis, cerebritis, and frontal lobe abscess of the brain. CASE REPORT: We present an unusual case of a 33-year-old man suffering from the Pott's puffy tumor whose condition was further complicated by a draining epidural-cutaneous fistula and an epidural abscess...
April 13, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28433974/hypoactive-hypoalert-behaviour-and-thalamic-hypometabolism-due-to-intracranial-hypotension
#15
Seamus Kearney, Peter Flynn, Simon Hughes, Wendy Spence, Mark Owen McCarron
A 47-year-old man presented with a 9-year history of a hypoalert hypoactive behaviour syndrome, caused by the deep brain swelling variant of spontaneous intracranial hypotension. Along with apathy with retained cognition, he had stable ataxia, impaired upgaze and episodes of central apnoea. MRI brain showed a sagging brainstem, pointed ventricles and reduced angle between the vein of Galen and the straight sinus, but no meningeal enhancement or subdural collections. A dopamine transporter scan showed preganglionic dopamine receptor deficiency; a fluorodeoxy glucose positron emission tomography scan showed bilateral hypothalamic hypometabolism...
April 22, 2017: Practical Neurology
https://www.readbyqxmd.com/read/28431433/experimental-anterior-ischemic-optic-neuropathy-in-diabetic-mice-exhibited-severe-retinal-swelling-associated-with-vegf-elevation
#16
Ming-Hui Sun, Mohammad Ali Shariati, Yaping Joyce Liao
Purpose: Diabetes mellitus (DM) is one of the most important risk factors for nonarteritic anterior ischemic optic neuropathy (AION). In this study, we investigated for the first time the impact of experimental AION in a DM model. Methods: We induced a photochemical thrombosis model of AION after streptozotocin-induced DM and performed serial optical coherence tomography (OCT), morphometric analyses, and VEGF levels in the retina and sera. Results: Compared with non-DM animals, experimental AION in DM mice led to significantly greater retinal swelling on day 1 and worse thinning at week 3 on OCT measurements...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28421530/time-of-day-dependent-neuronal-injury-after-ischemic-stroke-implication-of-circadian-clock-transcriptional-factor-bmal1-and-survival-kinase-akt
#17
Mustafa Caglar Beker, Berrak Caglayan, Esra Yalcin, Ahmet Burak Caglayan, Seyma Turkseven, Busra Gurel, Taha Kelestemur, Elif Sertel, Zafer Sahin, Selim Kutlu, Ulkan Kilic, Ahmet Tarik Baykal, Ertugrul Kilic
Occurrence of stroke cases displays a time-of-day variation in human. However, the mechanism linking circadian rhythm to the internal response mechanisms against pathophysiological events after ischemic stroke remained largely unknown. To this end, temporal changes in the susceptibility to ischemia/reperfusion (I/R) injury were investigated in mice in which the ischemic stroke induced at four different Zeitgeber time points with 6-h intervals (ZT0, ZT6, ZT12, and ZT18). Besides infarct volume and brain swelling, neuronal survival, apoptosis, ischemia, and circadian rhythm related proteins were examined using immunohistochemistry, Western blot, planar surface immune assay, and liquid chromatography-mass spectrometry tools...
April 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28418820/case-241-hemiparkinsonism-hemiatrophy-spect-with-99m-tc-trodat-1-and-muscle-mr-imaging-abnormalities
#18
Thiago Cardoso Vale, Flávia Cristina de Lima Pinto, José Luiz Pedroso, Marília Alves Dos Reis, Ilza Rosa Batista, Rodrigo Affonseca Bressan, René Leandro Magalhães Rivero, Renato Adam Mendonça, Orlando G Barsottini
History A 43-year-old right-handed man presented with a history of progressive mild left-sided weakness and slowness of movements. Symptoms began 4 years earlier, and the patient noticed a progressive decline in his daily routine due to gait difficulties in the past year. There was no history of head trauma, surgery, drug therapy, smoking, or alcohol abuse, nor was there any relevant family history. Examination revealed normal cognition (29 of 30 points on the Mini-Mental State Examination and 27 of 30 points on the Montreal Cognitive Assessment) and normal cerebellar, sensory, cranial nerve, and autonomic function...
May 2017: Radiology
https://www.readbyqxmd.com/read/28417997/iterative-expansion-microscopy
#19
Jae-Byum Chang, Fei Chen, Young-Gyu Yoon, Erica E Jung, Hazen Babcock, Jeong Seuk Kang, Shoh Asano, Ho-Jun Suk, Nikita Pak, Paul W Tillberg, Asmamaw T Wassie, Dawen Cai, Edward S Boyden
We recently developed a method called expansion microscopy, in which preserved biological specimens are physically magnified by embedding them in a densely crosslinked polyelectrolyte gel, anchoring key labels or biomolecules to the gel, mechanically homogenizing the specimen, and then swelling the gel-specimen composite by ∼4.5× in linear dimension. Here we describe iterative expansion microscopy (iExM), in which a sample is expanded ∼20×. After preliminary expansion a second swellable polymer mesh is formed in the space newly opened up by the first expansion, and the sample is expanded again...
April 17, 2017: Nature Methods
https://www.readbyqxmd.com/read/28410605/frosted-branch-angiitis-and-cerebral-venous-sinus-thrombosis-as-an-initial-onset-of-neuro-beh%C3%A3-et-s-disease-a-case-report-and-review-of-the-literature
#20
Bruno Fortaleza de Aquino Ferreira, Ever Ernesto Caso Rodriguez, Leandro Lara do Prado, Celio Roberto Gonçalves, Carlos Eduardo Hirata, Joyce Hisae Yamamoto
BACKGROUND: Frosted branch angiitis is a rare, severe condition. It can be either a primary or a secondary condition and is characterized by rapid deterioration of vision and fulminant retinal vasculitis that manifests as diffuse sheathing of retinal vessels, macular edema, papillitis, vitritis and anterior uveitis. We aimed to describe a case of frosted branch angiitis and cerebral venous sinus thrombosis as an initial neuro-Behçet's disease onset. Diagnosis of Behçet's disease was based on the current 2014 International Criteria for Behçet's Disease and the International consensus recommendation criteria for neuro-Behçet's disease...
April 15, 2017: Journal of Medical Case Reports
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