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Biomarkers neurological damage

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https://www.readbyqxmd.com/read/29773777/seeking-biomarkers-of-early-childhood-malnutrition-s-long-term-effects
#1
Pedro A Valdés-Sosa, Janina R Galler, Cyralene P Bryce, Arielle G Rabinowitz, María L Bringas-Vega, Nibaldo Hernández-Mesa, Alberto Taboada-Crispi
Protein-energy malnutrition affects one in nine people worldwide and is most prevalent among children aged less than five years in low-income countries. Early childhood malnutrition can have damaging neurodevelopmental effects, with significant increases in cognitive, neurological and mental health problems over the lifespan, outcomes which can also extend to the next generation. This article describes a research collaboration involving scientists from five centers in Barbados, China, Cuba and the USA. It builds on longer-term joint work between the Barbados Nutrition Study (which, over a 45-year span, has extensively documented nutritional, health, behavioral, social and economic outcomes of individuals who experienced protein-energy malnutrition in the first year of life and healthy controls from the same classrooms and neighborhoods) and the Cuban Neuroscience Center (which has developed low-cost brain imaging methods that can be readily used in low income settings to identify biomarkers for early detection and treatment of adverse consequences of childhood malnutrition)...
April 2018: MEDICC Review
https://www.readbyqxmd.com/read/29768624/analysis-of-the-immunological-biomarker-profile-during-acute-zika-virus-infection-reveals-the-overexpression-of-cxcl10-a-chemokine-linked-to-neuronal-damage
#2
Felipe Gomes Naveca, Gemilson Soares Pontes, Aileen Yu-Hen Chang, George Allan Villarouco da Silva, Valdinete Alves do Nascimento, Dana Cristina da Silva Monteiro, Marineide Souza da Silva, Lígia Fernandes Abdalla, João Hugo Abdalla Santos, Tatiana Amaral Pires de Almeida, Matilde Del Carmen Contreras Mejía, Tirza Gabrielle Ramos de Mesquita, Helia Valeria de Souza Encarnação, Matheus de Souza Gomes, Laurence Rodrigues Amaral, Ana Carolina Campi-Azevedo, Jordana Graziela Coelho-Dos-Reis, Lis Ribeiro do Vale Antonelli, Andréa Teixeira-Carvalho, Olindo Assis Martins-Filho, Rajendranath Ramasawmy
BACKGROUND: Infection with Zika virus (ZIKV) manifests in a broad spectrum of disease ranging from mild illness to severe neurological complications and little is known about Zika immunopathogenesis. OBJECTIVES: To define the immunologic biomarkers that correlate with acute ZIKV infection. METHODS: We characterized the levels of circulating cytokines, chemokines, and growth factors in 54 infected patients of both genders at five different time points after symptom onset using microbeads multiplex immunoassay; comparison to 100 age-matched controls was performed for statistical analysis and data mining...
May 14, 2018: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/29758204/association-between-hippuric-acid-and-left-ventricular-hypertrophy-in-maintenance-hemodialysis-patients
#3
Teng-Hung Yu, Wei-Hua Tang, Yung-Chuan Lu, Chao-Ping Wang, Wei-Chin Hung, Cheng-Ching Wu, I-Ting Tsai, Fu-Mei Chung, Jer-Yiing Houng, Wen-Chun Lan, Yau-Jiunn Lee
BACKGROUND: Left ventricular hypertrophy (LVH) is one of the most common cardiac abnormalities in patients with end-stage renal disease. Hippuric acid (HA), a harmful uremic toxin, is known to be elevated in patients with uremia, and serum HA levels are associated with neurological symptoms, metabolic acidosis, and accelerated renal damage associated with chronic kidney disease. However, the pathophysiological role of HA in patients with uremia remains unclear. We investigated the association between serum HA levels and echocardiographic measurements in patients undergoing hemodialysis (HD) treatment...
May 11, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29738858/neuroglobin-as-a-novel-biomarker-for-predicting-poor-outcomes-in-aneurysmal-subarachnoid-hemorrhage
#4
Hanpei Cai, Shufa Zheng, Bin Cai, Peisen Yao, Chenyu Ding, Fuxiang Chen, Dezhi Kang
OBJECTIVE: Neuroglobin (Ngb) has a high affinity for oxygen and helps prevent hypoxic-ischemic brain damage. In this paper, we analyzed the relationship between Ngb levels and clinical outcomes of aneurysmal subarachnoid hemorrhage (aSAH). METHODS: Serum Ngb levels were measured in 58 patients with aSAH and 27 controls using enzyme-linked immunosorbent assay. To continuously assess aSAH, we measured serum Ngb levels on days 1, 2, 3, 5 and 7 after aSAH. Clinical data were collected using the Hunt & Hess Scale, Glasgow Coma Scale (GCS), World Federation of Neurological Surgeons (WFNS) scale and modified Fisher scale...
May 5, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29651208/role-of-brain-biomarker-in-predicting-clinical-outcome-in-hypertensive-cerebrovascular-ischemic-stroke
#5
Anuradha Bharosay, Vivek Vikram Bharosay, Kiran Saxena, Meena Varma
This study was undertaken to evaluate the role of serum neuron specific enolase (NSE) in prediction of disability and neurological worsening in hypertensive ischemic cerebrovascular stroke. 80 hypertensive ischemic stroke patients diagnosed by a neurologist as per WHO definition along with radiological findings suggestive of cerebrovascular stroke and differentiating from hemorrhagic stroke and 60 controls having essential hypertension coming to hospital because of regular checkup or headache but with no neurological disease were included in the study...
April 2018: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/29617964/hippocampal-subcellular-organelle-proteomic-alteration-of-copper-treated-mice
#6
Haitao Yu, Xin Jiang, Xuemei Lin, Zaijun Zhang, Desheng Wu, Li Zhou, Jianjun Liu, Xifei Yang
Copper neurotoxicity has been implicated in multiple neurological diseases. However, there is a lack of deep understanding on copper neurotoxicity, especially for low-dose copper exposure. In this study, we investigated the effects of chronic, low-dose copper treatment (0.13 ppm copper chloride in drinking water) on hippocampal mitochondrial and nuclear proteome in mice by two-dimensional fluorescence difference gel electrophoresis (2D-DIGE) coupled with MALDI-TOF-MS/MS. Behavioral tests revealed that low-dose copper caused spatial memory impairment, DNA oxidative damage as well as loss of synaptic proteins...
March 30, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29607701/role-of-activation-of-lipid-peroxidation-in-the-mechanisms-of-acute-methanol-poisoning
#7
Jiri Hlusicka, Tomas Loster, Lucie Lischkova, Manuela Vaneckova, Zdenek Seidl, Pavel Diblik, Pavel Kuthan, Pavel Urban, Tomas Navratil, Petr Kacer, Sergey Zakharov
CONTEXT: The role of activation of lipid peroxidation in the mechanisms of acute methanol poisoning has not been studied. OBJECTIVE: We measured the concentrations of lipid peroxidation markers in acutely intoxicated patients with known serum concentrations of methanol and leukotrienes. METHODS: Blood serum samples were collected from 28 patients hospitalized with acute intoxication and from 36 survivors 2 years after discharge. In these samples, concentrations of 4-hydroxy-trans-2-hexenal (HHE), 4-hydroxynonenal (HNE), and malondialdehyde (MDA) were measured using the method of liquid chromatography-electrospray ionization-tandem mass spectrometry...
April 2, 2018: Clinical Toxicology
https://www.readbyqxmd.com/read/29596541/association-of-cerebrospinal-fluid-biomarkers-of-central-nervous-system-injury-with-neurocognitive-and-brain-imaging-outcomes-in-children-receiving-chemotherapy-for-acute-lymphoblastic-leukemia
#8
Yin Ting Cheung, Raja B Khan, Wei Liu, Tara M Brinkman, Michelle N Edelmann, Wilburn E Reddick, Deqing Pei, Angela Panoskaltsis-Mortari, Deokumar Srivastava, Cheng Cheng, Leslie L Robison, Melissa M Hudson, Ching-Hon Pui, Kevin R Krull
Importance: Little is known about treatment-related neurotoxic mechanisms in children with acute lymphoblastic leukemia (ALL) treated with chemotherapy only. Objective: To examine concentration of cerebrospinal fluid (CSF) biomarkers of brain injury at ALL diagnosis and during cancer therapy and to evaluate associations with long-term neurocognitive and neuroimaging outcomes and relevant genetic polymorphisms. Design, Setting, and Participants: This prospective cohort study included 235 patients with ALL who received a chemotherapy-only protocol...
March 29, 2018: JAMA Oncology
https://www.readbyqxmd.com/read/29572925/correlating-s100b-with-disease-course-in-a-case-of-new-onset-acquired-thrombotic-thrombocytopenic-purpura-ttp-could-this-be-a-new-predictive-biomarker-in-ttp
#9
Patrick Kuhlman, Peter Miller, Andrew Farland, John Owen, Katharine Batt
Acute thrombotic thrombocytopenic purpura (TTP) is an aggressive thrombotic microangiopathy that if not treated, can have a 90% mortality rate. Clinical manifestations of this disease include profound thrombocytopenia, hemolytic anemia, and end-organ dysfunction. Neurologic symptoms can occur in 80% of patients and range from mild confusion to coma (Scully et al., Br J Haematol 142:819-826). Here, we present the clinical course of a patient diagnosed with new onset acquired TTP who presented with neurologic changes that waxed and waned during her disease course...
March 23, 2018: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/29568675/combined-prediction-of-mir-210-and-mir-374a-for-severity-and-prognosis-of-hypoxic-ischemic-encephalopathy
#10
Zhansheng Wang, Yulu Liu, Minkun Shao, Dong Wang, Ying Zhang
Background and Aim: Hypoxic-ischemic encephalopathy (HIE) is a disorder featured by hypoxic and ischemic damages during the perinatal period and its high mortality (i.e., 15%-20%) could be partly attributed to late diagnosis. Therefore, miR-210 and miR-374a were investigated to find if they could improve the diagnostic values of S100B protein and neuron-specific enolase (NSE) for HIE. Methods: Altogether 167 HIE newborns and 82 healthy newborns were recruited, and their blood were sampled for determining the levels of biomarkers...
January 2018: Brain and Behavior
https://www.readbyqxmd.com/read/29560942/-the-neurotoxicity-biomarkers-as-potential-indicators-of-the-spinal-cord-ischemia
#11
G V Ponomarev, T V Lalayan, S A Dambinova, A A Skoromets
The study aimed at assessing the level of glutamate receptors antibodies (Abs) in blood serum and cerebrospinal fluid (CSF) of patients with spinal cord ischemia along with traditional diagnostic approaches. MATERIAL AND METHODS: Forty patients with spinal cord ischemia (10 with spinal stroke and 30 with subacute and chronic course of the disease) were enrolled. After exclusion of some participants, 27 patients continued the study. Comparison groups included 30 patients with ischemic stroke and 30 patients with radiculopathy...
2018: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/29560937/-an-influence-of-submaximal-submineximal-doses-of-mexidol-on-oxidant-stress-and-inflammation-in-the-acute-period-of-ischemic-stroke
#12
A R Godunova, A A Rakhimova, O I Leontyeva, I G Talipova, R M Yakhin, Sh G Musin
AIM: To study an effect of submaximal doses of mexidol on the dynamics of biochemical markers of inflammation and damage to brain tissue in the acute period of ischemic stroke. MATERIAL AND METHODS: A total of 60 patients admitted in the first 6h after disease onset with a verified ischemic stroke (7-9 points on the ASPECT scale) were enrolled in the study. Thirty patients in the study group received submaximal doses of mexidol: 750 mg infusion dropwise in 250 ml of 0...
2018: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/29560598/asymmetric-and-symmetric-dimethylarginines-are-markers-of-delayed-cerebral-ischemia-and-neurological-outcome-in-patients-with-subarachnoid-hemorrhage
#13
Daniel Appel, Miriam Seeberger, Edzard Schwedhelm, Patrick Czorlich, Alwin E Goetz, Rainer H Böger, Juliane Hannemann
BACKGROUND: Delayed cerebral ischemia (DCI) is the major cause of lethality and neuronal damage in patients who survived the primary subarachnoid hemorrhage (SAH). Asymmetric and symmetric dimethylarginines (ADMA and SDMA) inhibit nitric oxide production from L-arginine via distinct mechanisms. Elevated ADMA levels are associated with vasospasm after SAH. We aimed to study the time course of ADMA and SDMA in plasma and ventricular cerebrospinal fluid (CSF) and their associations with DCI and outcome...
March 20, 2018: Neurocritical Care
https://www.readbyqxmd.com/read/29557530/neuroprotective-efficiency-of-mangifera-indica-leaves-extract-on-cadmium-induced-cortical-damage-in-rats
#14
Naif E Al Omairi, Omyma K Radwan, Yahea A Alzahrani, Rami B Kassab
Due to the high ability of cadmium to cross the blood-brain barrier, cadmium (Cd) causes severe neurological damages. Hence, the purpose of this study was to investigate the possible protective effect of Mangifera indica leaf extract (MLE) against Cd-induced neurotoxicity. Rats were divided into eight groups. Group 1 served as vehicle control group, groups 2, 3 and 4 received MLE (100, 200, 300 mg /kg b.wt, respectively). Group 5 was treated with CdCl2 (5 mg/kg b.wt). Groups 6, 7 and 8 were co-treated with MLE and CdCl2 using the same doses...
March 20, 2018: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29557051/axonal-damage-is-remarkable-in-patients-with-acutely-worsening-symptoms-of-compression-myelopathy-biomarkers-in-cerebrospinal-fluid-samples
#15
Hiroshi Takahashi, Yasuchika Aoki, Arata Nakajima, Masato Sonobe, Fumiaki Terajima, Masahiko Saito, Takuya Miyamoto, Keita Koyama, Keiichiro Yamamoto, Takeo Furuya, Masao Koda, Seiji Ohtori, Masashi Yamazaki, Koichi Nakagawa
PURPOSE: To determine levels of biomarkers reflecting damage to axon, myelin, astrocytes, and neuron in cerebrospinal fluid (CSF) of patients with cervical compression myelopathy. METHODS: We collected 69 CSF samples from patients before spinal surgery for acutely worsening compression myelopathy (AM, 20), chronic compression myelopathy (CM, 20), and lumbar canal stenosis (LCS 29; control). We measured levels of phosphorylated neurofilament subunit H (pNF-H), tau (reflecting axonal damage), myelin basic protein (MBP) (reflecting demyelination), S100b (reflecting astrocyte damage), and neuron-specific enolase (NSE) (reflecting neuronal damage)...
March 19, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29544181/evaluation-of-uptake-and-chronic-toxicity-of-virgin-polystyrene-microbeads-in-freshwater-zebra-mussel-dreissena-polymorpha-mollusca-bivalvia
#16
Stefano Magni, François Gagné, Chantale André, Camilla Della Torre, Joëlle Auclair, Houda Hanana, Camilla Carla Parenti, Francesco Bonasoro, Andrea Binelli
Microplastics (MPs), plastic debris smaller than 5mm, are widely found in both marine and freshwater ecosystems. However, few studies regarding their hazardous effects on inland water organisms, have been conducted. For this reason, the aim of our research was the evaluation of uptake and chronic toxicity of two mixtures (MIXs) of virgin polystyrene microbeads (PMs) of 10μm and 1μm in size (MIX 1, with 5×105 of 1μmsizePMs/L and 5×105 of 10μmsizePMs/L, and MIX 2 with 2×106 of 1μmsizePMs/L and 2×106 of 10μmsizePMs/L) on freshwater zebra mussel Dreissena polymorpha (Mollusca: Bivalvia) during 6 exposure days...
August 1, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29516356/neurotoxic-outcomes-of-subchronic-manganese-chloride-exposure-via-contaminated-water-in-adult-male-rats-and-the-potential-benefits-of-ebselen
#17
Walaa M El-Hady, Azza A A Galal
The neurological effects of manganese (Mn) exposure on adults consuming contaminated water remain unclear. Accordingly, the current experiment was planned to explore the neurotoxic consequences of subchronic Mn exposure via contaminated water and to examine whether ebselen (Ebs) improved these outcomes. Rats exposed to oral MnCl2 (50 mg/kg body weight) for 30 successive days exhibited reduced rearing and ambulation. Furthermore, Mn administration increased brain Mn concentrations and induced superoxide dismutase, catalase, and glutathione depletion...
March 7, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29459944/association-of-changes-in-plasma-neurofilament-light-and-tau-levels-with-anesthesia-and-surgery-results-from-the-capacity-and-arcadian-studies
#18
Lisbeth Evered, Brendan Silbert, David A Scott, Henrik Zetterberg, Kaj Blennow
Importance: Anesthesia and surgery are believed to act on the central nervous system by a fully reversible mechanism innocuous to nerve cells. Evidence that neurological sequelae may follow would challenge this belief and would thereby suggest a need to reassess theories of the mechanism of anesthetic action or the response of the central nervous system to surgery. Objective: To measure 2 biomarkers of neurological injury (neurofilament light and tau) in plasma in a series of timed collections before and after anesthesia and surgery...
February 19, 2018: JAMA Neurology
https://www.readbyqxmd.com/read/29459137/microstructural-visual-pathway-abnormalities-in-patients-with-primary-glaucoma-3-t-diffusion-kurtosis-imaging-study
#19
Z F Xu, J S Sun, X H Zhang, Y Y Feng, A Z Pan, M Y Gao, H Zhao
AIM: To evaluate microstructural visual pathway damage in patients with primary glaucoma (PG) by using 3 T diffusion kurtosis imaging (DKI). MATERIALS AND METHODS: The study was approved by the ethics committee, and all participants provided written informed consent. Ten patients with PG were examined. Twenty healthy individuals served as control subjects. DKI was performed with a GE Silent 3 T magnetic resonance imaging (MRI) unit. Mean diffusivity (MD), fractional anisotropy (FA), and mean kurtosis (MK) maps were automatically created...
June 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29449691/enhanced-release-of-acid-sphingomyelinase-enriched-exosomes-generates-a-lipidomics-signature-in-csf-of-multiple-sclerosis-patients
#20
Damiana Pieragostino, Ilaria Cicalini, Paola Lanuti, Eva Ercolino, Maria di Ioia, Mirco Zucchelli, Romina Zappacosta, Sebastiano Miscia, Marco Marchisio, Paolo Sacchetta, Marco Onofrj, Piero Del Boccio
Multiple Sclerosis (MuS) is a complex multifactorial neuropathology, resulting in heterogeneous clinical presentation. A very active MuS research field concerns the discovery of biomarkers helpful to make an early and definite diagnosis. The sphingomyelin pathway has emerged as a molecular mechanism involved in MuS, since high levels of ceramides in cerebrospinal fluid (CSF) were related to axonal damage and neuronal dysfunction. Ceramides are the hydrolysis products of sphingomyelins through a reaction catalyzed by a family of enzymes named sphingomyelinases, which were recently related to myelin repair in MuS...
February 15, 2018: Scientific Reports
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