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Biomarkers neurological damage

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https://www.readbyqxmd.com/read/28268486/identifying-stereotypic-evolving-micro-scale-seizures-sems-in-the-hypoxic-ischemic-eeg-of-the-pre-term-fetal-sheep-with-a-wavelet-type-ii-fuzzy-classifier
#1
Hamid Abbasi, Laura Bennet, Alistair J Gunn, Charles P Unsworth
Perinatal hypoxic-ischemic encephalopathy (HIE) around the time of birth due to lack of oxygen can lead to debilitating neurological conditions such as epilepsy and cerebral palsy. Experimental data have shown that brain injury evolves over time, but during the first 6-8 hours after HIE the brain has recovered oxidative metabolism in a latent phase, and brain injury is reversible. Treatments such as therapeutic cerebral hypothermia (brain cooling) are effective when started during the latent phase, and continued for several days...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28253992/molecular-links-and-biomarkers-of-stroke-vascular-dementia-and-alzheimer-s-disease
#2
M Vijayan, S Kumar, J S Bhatti, P H Reddy
Stroke is a very common neurological disease, and it occurs when the blood supply to part of the brain is interrupted and the subsequent shortage of oxygen and nutrients causes damage to the brain tissue. Stroke is the second leading cause of death and the third leading cause of disability-adjusted life years. The occurrence of stroke increases with age, but anyone at any age can suffer a stroke. Stroke can be broadly classified in two major clinical types: ischemic stroke (IS) and hemorrhagic stroke. Research also revealed that stroke, vascular dementia (VaD), and Alzheimer's disease (AD) increase with a number of modifiable factors, and most strokes can be prevented and/or controlled through pharmacological or surgical interventions and lifestyle changes...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/28243834/sodium-tanshinone-iia-sulfonate-enhances-effectiveness-rt-pa-treatment-in-acute-ischemic-stroke-patients-associated-with-ameliorating-blood-brain-barrier-damage
#3
Biying Ji, Fei Zhou, Lijuan Han, Jun Yang, Haijian Fan, Shanshan Li, Jingwei Li, Xin Zhang, Xiaoying Wang, Xiangyan Chen, Yun Xu
Treatment with sodium tanshinone IIA sulfonate (STS) may ameliorate blood-brain barrier (BBB) damage in acute ischemic stroke patients receiving recombinant tissue plasminogen activator (rt-PA) thrombolysis and improve stroke patients' outcome. This randomized, single-center, placebo-controlled clinical trial investigated the potential effects and underlying mechanisms of STS. Forty-two acute ischemic stroke patients receiving intravenous rt-PA thrombolysis were randomized to intravenous administration either with STS (60 mg/day) (n = 21) or with equivalent volume of saline as a placebo (n = 21) after randomization for 10 days...
February 27, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28226660/identifying-stereotypic-evolving-micro-scale-seizures-sems-in-the-hypoxic-ischemic-eeg-of-the-pre-term-fetal-sheep-with-a-wavelet-type-ii-fuzzy-classifier
#4
Hamid Abbasi, Laura Bennet, Alistair J Gunn, Charles P Unsworth, Hamid Abbasi, Laura Bennet, Alistair J Gunn, Charles P Unsworth, Charles P Unsworth, Laura Bennet, Hamid Abbasi, Alistair J Gunn
Perinatal hypoxic-ischemic encephalopathy (HIE) around the time of birth due to lack of oxygen can lead to debilitating neurological conditions such as epilepsy and cerebral palsy. Experimental data have shown that brain injury evolves over time, but during the first 6-8 hours after HIE the brain has recovered oxidative metabolism in a latent phase, and brain injury is reversible. Treatments such as therapeutic cerebral hypothermia (brain cooling) are effective when started during the latent phase, and continued for several days...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223158/aminoguanidine-alleviated-mma-induced-impairment-of-cognitive-ability-in-rats-by-downregulating-oxidative-stress-and-inflammatory-reaction
#5
Qiliang Li, Wenqi Song, Ze Tian, Peichang Wang
Methylmalonic acidemia (MMA) is the most common organic acidemia in childhood. Many "treated" patients continued to display various degrees of mental retardation and psychomotor delay, which could be caused by brain damage from elevated oxidative stress. Aminoguanidine (AG), a synthetic antioxidant, was tested in a MMA rat model for its potential therapeutic effects on memory impairment. The effects of AG on MMA-induced cognitive impairment in Wistar rats were evaluated with Morris Water Maze. The levels of nerve cell apoptosis and microglial activation were investigated to illustrate the mechanisms of the improvement of cognition with AG treatment in MMA rats...
February 13, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28203097/cerebral-malaria-insight-into-pathogenesis-complications-and-molecular-biomarkers
#6
Farah Hafiz Yusuf, Muhammad Yusuf Hafiz, Maria Shoaib, Syed Ahsanuddin Ahmed
Cerebral malaria is a medical emergency. All patients with Plasmodium falciparum malaria with neurologic manifestations of any degree should be urgently treated as cases of cerebral malaria. Pathogenesis of cerebral malaria is due to damaged vascular endothelium by parasite sequestration, inflammatory cytokine production and vascular leakage, which result in brain hypoxia, as indicated by increased lactate and alanine concentrations. The levels of the biomarkers' histidine-rich protein II, angiopoietin-Tie-2 system and plasma osteoprotegrin serve as diagnostic and prognostic markers...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/28183829/retinal-structure-assessed-by-oct-as-a-biomarker-of-brain-development-in-children-born-small-for-gestational-age
#7
Victoria Pueyo, Teresa Pérez, Inmaculada González, Irene Altemir, Galadriel Gimenez, Esther Prieto, Cristina Paules, Daniel Oros, Javier Lopez-Pison, Nicolás Fayed, Gracián Garcia-Martí, Roberto Sanz-Requena, Miguel Angel Marin
PURPOSE: To identify differences in neuronal tissue from retinal and brain structures in children born small for gestational age (SGA) with no abnormality in neonatal brain ultrasonography and no previous neurological impairment, and to evaluate the relationship between retinal structure and brain changes in school-age children born SGA. METHODS: Two cohorts of children were recruited: 25 children born SGA and 25 children born with an appropriate birth weight according to gestational age...
February 9, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28142140/dha-reduces-oxidative-stress-after-perinatal-asphyxia-a-study-in-newborn-piglets
#8
Rønnaug Solberg, Mariangela Longini, Fabrizio Proietti, Serafina Perrone, Cosetta Felici, Alessio Porta, Ola Didrik Saugstad, Giuseppe Buonocore
BACKGROUND: Perinatal hypoxic-ischemic brain damage is a major cause of acute mortality and chronic neurological morbidity in infants and children. Oxidative stress due to free radical formation and the initiation of abnormal oxidative reactions appears to play a key role. Docosahexanoic acid (DHA), a main component of brain membrane phospholipids, may act as a neuroprotectant after hypoxia-ischemia by regulating multiple molecular pathways and gene expression. OBJECTIVES: The aims of this study were to test the hypothesis that DHA provides significant protection against lipoperoxidation damage in the cerebral cortex and hippocampus in a neonatal piglet model of severe hypoxia-reoxygenation...
February 1, 2017: Neonatology
https://www.readbyqxmd.com/read/28088349/stroke-biomarkers-in-clinical-practice-a-critical-appraisal
#9
REVIEW
Geelyn J L Ng, Amy M L Quek, Christine Cheung, Thiruma V Arumugam, Raymond C S Seet
Biomarkers provide critical mechanistic insights to key biologic processes that occur during cerebral ischemia which, when carefully applied, can improve clinical decision-making in acute stroke management. The translation of a blood-based biomarker in ischemic stroke to clinical practice is challenging, in part, due to the complexity of ischemic stroke pathogenesis and the presence of a blood-brain barrier that restricts the release of brain-specific markers into the circulation. The pathologic and clinical aspects of ischemic stroke are described in this review, where a non-exhaustive list of biomarkers that interrogate different aspects of ischemic stroke such as oxidative damage, inflammation, thrombus formation, cardiac function and brain injury are described...
January 11, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28077936/redox-proteomic-identification-of-carbonylated-proteins-in-autism-plasma-insight-into-oxidative-stress-and-its-related-biomarkers-in-autism
#10
Chengyun Feng, Youjiao Chen, Jintao Pan, Aochu Yang, Li Niu, Jie Min, Xianling Meng, Liping Liao, Kaoyuan Zhang, Liming Shen
BACKGROUND: Autism is a severe childhood neurological disorder with poorly understood etiology and pathology. Currently, there is no authentic laboratory test to confirm the diagnosis of autism. Oxidative damage may play a central role in the pathogenesis of autism. Present study is an effort to search for possible biomarkers of autism and further clarify the molecular changes associated with oxidative stress that occurs in the plasma of autistic children. METHODS: We performed redox proteomics analysis to compare carbonylated proteins in the plasma of autistic subjects and healthy controls...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28054291/elevated-serum-glial-fibrillary-acidic-protein-gfap-is-associated-with-poor-functional-outcome-after-cardiopulmonary-resuscitation
#11
Kirsten Helwig, Florian Seeger, Hans Hölschermann, Volker Lischke, Tibo Gerriets, Marion Niessner, Christian Foerch
BACKGROUND: The neurological prognosis of patients after cardiopulmonary resuscitation (CPR) is difficult to assess. GFAP is an astrocytic intermediate filament protein released into bloodstream in case of cell death. We performed a prospective study aiming to compare the predictive potential of GFAP after resuscitation to the more widely used biomarker neuron-specific enolase (NSE). METHODS: One hundred patients were included at 48 h (tolerance interval ±12 h) after cardiac arrest...
January 4, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28011613/spinal-arachnoiditis-as-a-complication-of-cryptococcal-meningoencephalitis-in-non-hiv-previously-healthy-adults
#12
Anil A Panackal, Mika Komori, Peter Kosa, Omar Khan, Dima A Hammoud, Lindsey B Rosen, Sarah K Browne, Yen-Chih Lin, Elena Romm, Charu Ramaprasad, Bettina C Fries, John E Bennett, Bibiana Bielekova, Peter R Williamson
BACKGROUND: Cryptococcus can cause meningoencephalitis (CM) among previously healthy non-HIV adults. Spinal arachnoiditis is under-recognized, since diagnosis is difficult with concomitant central nervous system (CNS) pathology. METHODS: We describe 6 cases of spinal arachnoiditis among 26 consecutively recruited CM patients with normal CD4 counts who achieved microbiologic control. We performed detailed neurological exams, cerebrospinal fluid (CSF) immunophenotyping and biomarker analysis before and after adjunctive immunomodulatory intervention with high dose pulse corticosteroids, affording causal inference into pathophysiology...
February 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27995945/the-developing-landscape-of-diagnostic-and-prognostic-biomarkers-for-spinal-cord-injury-in-cerebrospinal-fluid-and-blood
#13
REVIEW
C H Hulme, S J Brown, H R Fuller, J Riddell, A Osman, J Chowdhury, N Kumar, W E Johnson, K T Wright
STUDY DESIGN: Review study. OBJECTIVES: The identification of prognostic biomarkers of spinal cord injury (SCI) will help to assign SCI patients to the correct treatment and rehabilitation regimes. Further, the detection of biomarkers that predict permanent neurological outcome would aid in appropriate recruitment of patients into clinical trials. The objective of this review is to evaluate the current state-of-play in this developing field. SETTING: Studies from multiple countries were included...
February 2017: Spinal Cord
https://www.readbyqxmd.com/read/27987229/neuronal-damage-biomarkers-in-the-identification-of-patients-at-risk-of-long-term-postoperative-cognitive-dysfunction-after-cardiac-surgery
#14
W F Kok, J Koerts, O Tucha, T W L Scheeren, A R Absalom
Biomarkers of neurological injury can potentially predict postoperative cognitive dysfunction. We aimed to identify whether classical neuronal damage-specific biomarkers, including brain fatty acid-binding protein, neuron-specific enolase and S100 calcium-binding protein β, as well as plasma-free haemoglobin concentration as a measure of haemolysis, could be used to predict the risk of long-term cognitive decline after coronary artery bypass grafting with or without cardiopulmonary bypass. We assessed cognitive function using the CogState brief computerised cognitive test battery at 3 months and at 15 months after surgery...
December 17, 2016: Anaesthesia
https://www.readbyqxmd.com/read/27924525/a-three-day-consecutive-fingolimod-administration-improves-neurological-functions-and-modulates-multiple-immune-responses-of-cci-mice
#15
Chuang Gao, Yu Qian, Jinhao Huang, Dong Wang, Wanqiang Su, Peng Wang, Linyue Guo, Wei Quan, Shuo An, Jianning Zhang, Rongcai Jiang
Excessive inflammation after traumatic brain injury (TBI) is a major cause of secondary TBI. Though several inflammatory biomarkers have been postulated as the risk factors of TBI, there has not been any comprehensive description of them. Fingolimod, a new kind of immunomodulatory agent which can diminish various kinds of inflammatory responses, has shown additional therapeutic effects in the treatment of intracranial cerebral hematoma (ICH), ischemia, spinal cord injury (SCI), and many other CNS disorders...
December 6, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27920793/cognitive-decline-in-patients-with-chronic-hydrocephalus-and-normal-aging-growing-into-deficits
#16
Marlijn H de Beer, Philip Scheltens
BACKGROUND/AIM: To explore the theory of 'growing into deficits', a concept known from developmental neurology, in a series of cases with chronic hydrocephalus (CH). METHODS: Patients were selected from the Amsterdam Dementia Cohort and underwent extensive dementia screening. RESULTS: Twelve patients with CH were selected, in whom Alzheimer's disease was considered unlikely, based on biomarker information and follow-up. Mean Mini-Mental State Examination score was 24 (range 7-30)...
September 2016: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/27903281/improving-the-clinical-management-of-traumatic-brain-injury-through-the-pharmacokinetic-modeling-of-peripheral-blood-biomarkers
#17
Aaron Dadas, Jolewis Washington, Nicola Marchi, Damir Janigro
BACKGROUND: Blood biomarkers of neurovascular damage are used clinically to diagnose the presence severity or absence of neurological diseases, but data interpretation is confounded by a limited understanding of their dependence on variables other than the disease condition itself. These include half-life in blood, molecular weight, and marker-specific biophysical properties, as well as the effects of glomerular filtration, age, gender, and ethnicity. To study these factors, and to provide a method for markers' analyses, we developed a kinetic model that allows the integrated interpretation of these properties...
November 30, 2016: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/27889229/brown-propolis-attenuates-cerebral-ischemia-induced-oxidative-damage-via-affecting-antioxidant-enzyme-system-in-mice
#18
Gholamreza Bazmandegan, Mohammad Taher Boroushaki, Ali Shamsizadeh, Fatemeh Ayoobi, Elham Hakimizadeh, Mohammad Allahtavakoli
Oxidative stress plays a critical role in ischemic brain injury. Superoxide dismutase (SOD) and glutathione peroxidase (GPx) are the enzymes underlying the endogenous antioxidant mechanisms affected by stroke and are considered as oxidative stress biomarkers. Brown propolis (BP) is a bioactive natural product with a set of biological activities that in turn may differ depending on the area from which the substance is originated. The aim of this study was to investigate the effect of water-extracted brown propolis (WEBPs), from two regions of Iran, against cerebral ischemia-induced oxidative injury in a mouse model of stroke...
January 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27888142/profiling-and-identification-of-new-proteins-involved-in-brain-ischemia-using-maldi-imaging-mass-spectrometry
#19
Víctor Llombart, Sebastián Alejandro Trejo, Sílvia Bronsoms, Anna Morancho, Ma Feifei, Júlia Faura, Teresa García-Berrocoso, Alba Simats, Anna Rosell, Francesc Canals, Mar Hernández-Guillamón, Joan Montaner
The identification of proteins involved in brain ischemia might allow the discovery of putative biomarkers or therapeutic targets for ischemic stroke. Our aim is to study the distribution of proteins within mouse brain after an ischemic insult using MALDI imaging-mass-spectrometry and to identify relevant proteins involved in brain damage. We occluded the middle cerebral artery of C57BL/6J mice. Brain slices were analyzed by MALDI-TOF and infarct (IC) and contralateral (CL) regions were compared using ClinProTools...
January 30, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/27821249/protein-carbonyl-content-a-novel-biomarker-for-aging-in-hiv-aids-patients
#20
Vaishali Kolgiri, Vinayak Wamanrao Patil
BACKGROUND: The major complications of "treated" Human Immunodeficiency Virus (HIV) infection are cardiovascular disease, malignancy, renal disease, liver disease, bone disease, and perhaps neurological complications, which are phenomena of the normal aging process occurring at an earlier age in the HIV-infected population. The present study is aimed to explore protein carbonyl content as a biomarker for detecting oxidative DNA damage induced ART toxicity and/or accelerated aging in HIV/AIDS patients...
January 2017: Brazilian Journal of Infectious Diseases
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