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S100B protein

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https://www.readbyqxmd.com/read/28333144/aberrant-ipsc-derived-human-astrocytes-in-alzheimer-s-disease
#1
V C Jones, R Atkinson-Dell, A Verkhratsky, L Mohamet
The pathological potential of human astroglia in Alzheimer's disease (AD) was analysed in vitro using induced pluripotent stem cell (iPSC) technology. Here, we report development of a human iPSC-derived astrocyte model created from healthy individuals and patients with either early-onset familial AD (FAD) or the late-onset sporadic form of AD (SAD). Our chemically defined and highly efficient model provides >95% homogeneous populations of human astrocytes within 30 days of differentiation from cortical neural progenitor cells (NPCs)...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28301275/serum-s100-protein-could-predict-altered-consciousness-in-glyphosate-or-glufosinate-poisoning-patients
#2
Jung-Won Lee, Young-Jin Choi, Samel Park, Hyo-Wook Gil, Ho-Yeon Song, Sae-Yong Hong
BACKGROUND: Central nervous system (CNS) complications such as seizures and reduced consciousness are important in glufosinate and may occur in severe glyphosate poisoning. The aim of this study was to assess the possible role of serum S100B protein as a biochemical marker of CNS complications associated with glyphosate or glufosinate poisoning. METHODS: The study enrolled 40 patients (23 glyphosate poisoning and 17 glufosinate poisoning). Altered consciousness and seizure were observed during hospitalization...
March 16, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28282292/s100b-maternal-blood-levels-are-gestational-age-and-gender-dependent-in-healthy-pregnancies
#3
Laura D Serpero, Vincenza Bianchi, Francesca Pluchinotta, Erika Conforti, Ekaterina Baryshnikova, Roberto Guaschino, Maurizio Cassinari, Oria Trifoglio, Maria Grazia Calevo, Diego Gazzolo
BACKGROUND: S100B is a well-established biomarker of central nervous system (CNS) development and damage in the perinatal period. Because the fetal CNS induces an overproduction of S100B measurable in the maternal bloodstream we evaluated S100B protein in healthy pregnancies in order to provide a reference curve of the protein in the second and third trimesters and to provide information on CNS development when standard monitoring procedures could be silent or unavailable. METHODS: Between July 2012 and December 2014 we conducted a prospective study in 1213 healthy pregnancies delivering healthy newborns...
March 7, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28273245/grape-juice-increases-the-bdnf-levels-but-not-alter-the-s100b-levels-in-hippocampus-and-frontal-cortex-from-male-wistar-rats
#4
Caroline Dani, Ana Cristina Andreazza, Carlos Alberto Gonçalves, Flávio Kapizinski, João A P Henriques, Mirian Salvador
Several studies have shown that a high consumption of vegetables and fruits is consistently associated with a low risk of oxidative stress-induced diseases, which includes some degenerative diseases such as amyotrophic lateral sclerosis, Alzheimer and Parkinson. Therefore, the objective of this study is to verify the effects of conventional and organic grape juice in the modulation of the neurotrophic factor (BDNF) and astrocytic markers protein (S100B) in hippocampus and frontal cortex of Wistar rats. In this study, 24 male Wistar rats were divided into three groups...
March 2, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28220282/serum-trace-elements-are-associated-with-hemostasis-lipid-spectrum-and-inflammatory-markers-in-men-suffering-from-acute-ischemic-stroke
#5
Anatoly V Skalny, Lydmila L Klimenko, Aliya A Turna, Maria N Budanova, Ivan S Baskakov, Marina S Savostina, Aksana N Mazilina, Anatoly I Deyev, Margarita G Skalnaya, Alexey A Tinkov
The primary objective of the study is investigation of the association between trace elements status and hemostasis, lipid spectrum and inflammatory markers in acute ischemic stroke (AIS). A total of 30 men suffering from AIS and 30 healthy controls were involved in the current survey. Blood count, serum lipid spectrum, complement components C4 and C3a, vascular endothelial growth factor (VEGF), S100B protein, NR2 antibodies (NR2Ab), and total antioxidant status (TAS), as well as plasma fibrinogen, and D-dimer levels and activated partial thromboplastin time (APTT) were assessed...
February 20, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28212812/s100b-is-a-potential-disease-activity-marker-in-non-segmental-vitiligo
#6
Reinhart Speeckaert, Sofie Voet, Esther Hoste, Nanja van Geel
Vitiligo is a chronic skin condition characterized by progressive depigmentation of the skin. S100B is a damage-associated molecular pattern (DAMP) protein expressed in melanocytes, which has been proposed as a marker of melanocyte cytotoxicity. While the use of S100B as a biomarker in melanoma is well established, its association with vitiligo activity has not yet been investigated. Here, we show that S100B serum levels were significantly increased in patients with active non-segmental vitiligo and strongly correlated with the affected body surface area...
February 14, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28212354/the-effect-of-dexmedetomidine-on-oxidative-stress-response-following-cerebral-ischemia-reperfusion-in-rats-and-the-expression-of-intracellular-adhesion-molecule-1-icam-1-and-s100b
#7
Yanwen Li, Shikun Liu
BACKGROUND Ischemia-reperfusion injury of whole brain involves a complicated pathophysiology mechanism. Dexmedetomidine (Dex) has been shown to have neuro protective functions. This study observed the effect of Dex on serum S100B and cerebral intracellular adhesion molecule-1 (ICAM-1) in a rat model of cerebral ischemia-reperfusion. MATERIAL AND METHODS Healthy Sprague Dawley (SD) rats (males, 7 weeks old) were randomly divided into sham, model, and Dex groups (n=20 each). A cerebral ischemia-reperfusion model was prepared by clipping of the bilateral common carotid artery combined with hypotension...
February 17, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28211895/electroacupuncture-attenuates-cfa-induced-inflammatory-pain-by-suppressing-nav1-8-through-s100b-trpv1-opioid-and-adenosine-pathways-in-mice
#8
Hsien-Yin Liao, Ching-Liang Hsieh, Chun-Ping Huang, Yi-Wen Lin
Pain is associated with several conditions, such as inflammation, that result from altered peripheral nerve properties. Electroacupuncture (EA) is a common Chinese clinical medical technology used for pain management. Using an inflammatory pain mouse model, we investigated the effects of EA on the regulation of neurons, microglia, and related molecules. Complete Freund's adjuvant (CFA) injections produced a significant mechanical and thermal hyperalgesia that was reversed by EA or a transient receptor potential V1 (TRPV1) gene deletion...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28202293/therapeutic-hypothermia-attenuates-brain-edema-in-a-pig-model-of-cardiac-arrest-possible-role-of-the-angiopoietin-tie-2-system
#9
Jiebin Li, ChunSheng Li, Wei Yuan, JunYuan Wu, Jie Li, ZhenHua Li, YongZhen Zhao
OBJECTIVE: This study aimed to clarify whether therapeutic hypothermia protects against cerebral edema following cardiac arrest (CA) and cardiopulmonary resuscitation (CPR) in a porcine model via regulating the angiopoietin-Tie-2 ligand-receptor system. METHODS: Male pigs were randomized into the therapeutic hypothermia group, the normothermia group or the sham control group. CA was induced in pigs by untreated ventricular fibrillation for 8min. Brain edema was determined by measuring the cerebral cortical water content at 24h after the return of spontaneous circulation (ROSC)...
February 6, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28202117/-value-of-serum-s100b-protein-and-neuron-specific-enolase-levels-in-predicting-the-severity-of-hand-foot-and-mouth-disease
#10
Jing Li, Rui-Hai Liu, Ruo-Bing Shan
OBJECTIVE: To study the value of serum S100B protein and neuron-specific enolase (NSE) levels in predicting the severity of hand, foot and mouth disease (HFMD). METHODS: Ninety children with HFMD were classified into three groups: common type, severe type, and critical type (n=30 each). Thirty healthy children were randomly selected as the control group. ELISA was used to measure serum levels of S100B protein and NSE before and at 7 days after treatment. The receiver operating characteristic (ROC) curve was used to evaluate the prediction efficiency of S100B protein and NSE for the severity of HFMD...
February 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28188811/day-night-changes-in-serum-s100b-protein-concentrations-in-acute-paranoid-schizophrenia
#11
Armando L Morera-Fumero, Estefanía Díaz-Mesa, Pedro Abreu-Gonzalez, Lourdes Fernandez-Lopez, Maria Del Rosario Cejas-Mendez
There are day/night and seasonal changes in biological markers such as melatonin and cortisol. Controversial changes in serum S100B protein levels have been described in schizophrenia. We aim studying whether serum S100B levels present day/night variations in schizophrenia patients and whether S100B levels are related to psychopathology. Sixty-five paranoid schizophrenic inpatients participated in the study. Psychopathology was assessed with the Positive and Negative Syndrome Scale (PANSS) at admission and discharge...
April 3, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28174179/s100b-impairs-glycolysis-via-enhanced-poly-adp-ribosyl-ation-of-glyceraldehyde-3-phosphate-dehydrogenase-in-rodent-muscle-cells
#12
Kaori Hosokawa, Yoji Hamada, Atsushi Fujiya, Masatoshi Murase, Ryuya Maekawa, Yasuhiro Niwa, Takako Izumoto, Yusuke Seino, Shin Tsunekawa, Hiroshi Arima
S100 calcium-binding protein B (S100B), a multifunctional macromolecule mainly expressed in nerve tissues and adipocytes, has been suggested to contribute to the pathogenesis of obesity. To clarify the role of S100B in insulin action and glucose metabolism in peripheral tissues, we investigated the effect of S100B on glycolysis in myoblast and myotube cells. Rat myoblast L6 cells were treated with recombinant mouse S100B to examine glucose consumption, lactate production, glycogen accumulation, glycolytic metabolites and enzyme activity, insulin signaling, and poly(ADP-ribosyl)ation of glyceraldehyde-3-phosphate dehydrogenase (GAPDH)...
February 7, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28166944/recover-of-peripheral-nerve-function-after-prolong-hypothermic-cardiac-arrest-in-a-porcine-model-with-extra-corporeal-life-support
#13
Benedict Kjaergaard, Cristian Sevcencu, Sigridur Olga Magnusdottir, Henrik Bygum Krarup, Thomas Nørgaard Nielsen
OBJECTIVES: Surviving long lasting cardiac arrest following accidental hypothermia has been reported after treatment with extra corporeal life support (ECLS), but there is a risk of neurologic injury. Most surviving hypothermia patients have a prolonged stay in the intensive care unit, where most patients experience polyneuropathy. Theoretically, accidental hypothermic cardiac arrest may in itself contribute to polyneuropathy. This study was designed to examine the impact of three hours of cardiac arrest at a core temperature of 20°C followed by reanimation of peripheral nerve function...
February 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28163201/the-receptor-for-advanced-glycation-end-products-rage-is-involved-in-corneal-healing
#14
Norbert Nass, Stefanie Trau, Friedrich Paulsen, Delia Kaiser, Thomas Kalinski, Saadettin Sel
Impaired corneal healing is still a major cause of blindness. As RAGE (receptor for advanced glycation endproducts) is involved in inflammation and wound healing in other tissues, we here investigated its relevance for corneal wound healing. Corneal re-epithelialization after alkaline injury was analysed in an ex-vivo approach with cultured, enucleated eyes from mice either of the C57Bl/6 NChR genotype (RAGE+/+) and mice of the same strain lacking the RAGE gene (RAGE-/-). The wound area was determined time dependently by fluorescence imaging using fluorescein staining...
February 3, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28162020/holder-pasteurization-affects-s100b-concentrations-in-human-milk
#15
Chiara Peila, Alessandra Coscia, Enrico Bertino, Giovanni Li Volti, Fabio Galvano, Gerard H A Visser, Diego Gazzolo
PURPOSE: Donor milk (DM) represents an important nutrition source for high-risk newborns. Holder pasteurization (HoP) is the most recommended procedure for DM treatment, providing a good compromise between microbiological safety and biological quality. HoP was previously shown to affect DM cytokines, growth factors and hormones levels, whilst no data concerning the possible effects of HoP on neurobiomarkers (NB) are available. Therefore, our study investigated whether the concentration in DM of a well-known NB involved in brain development/damage, namely S100B, changes due to HoP...
February 28, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28099628/elevated-plasma-concentrations-of-s100-calcium-binding-protein-b-and-tumor-necrosis-factor-alpha-in-children-with-autism-spectrum-disorders
#16
Selin Aktan Guloksuz, Osman Abali, Esin Aktas Cetin, Sema Bilgic Gazioglu, Gunnur Deniz, Abdurrahman Yildirim, Ivana Kawikova, Sinan Guloksuz, James F Leckman
Objective: To investigate plasma concentrations of S100B (a calcium-binding protein derived primarily from the glia) and inflammatory cytokines in children with autism and the relationship between S100B and cytokine concentrations. Methods: Plasma levels of S100B, tumor necrosis factor alpha (TNF-α), interferon gamma, interleukin (IL)-1β, IL-4, IL-6, IL-10, and IL-17A were measured in 40 unmedicated children with autism and 35 normally developing healthy children...
January 12, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28088747/decreased-s100b-serum-levels-after-treatment-in-bipolar-patients-in-a-manic-phase
#17
Meng-Chang Tsai, Tiao-Lai Huang
BACKGROUND: Previous studies have suggested that patients with bipolar disorder might have brain damage. The aim of this study was to investigate the serum levels of brain injury biomarkers and S100A10 in bipolar patients in a manic phase, and evaluate the changes in S100B, neuron specific enolase (NSE), heat shock protein 70 (HSP70) and S100A10 after treatment. METHOD: We consecutively enrolled 17 bipolar inpatients in a manic phase and 30 healthy subjects. Serum brain injury biomarkers and S100A10 were measured with assay kits...
January 3, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28063977/enteric-glial-reactivity-to-systemic-lps-administration-changes-in-gfap-and-s100b-protein
#18
Raphaela da Cunha Franceschi, Patrícia Nardin, Clivia Valle Machado, Lucas Silva Tortorelli, Malcon Andrei Martinez-Pereira, Caroline Zanotto, Carlos-Alberto Gonçalves, Denise Maria Zancan
Lipopolysaccharide (LPS) is used to induce inflammation and promotes nervous system activation. Different regions of the brain present heterogeneous glial responses; thus, in order to verify whether systemic LPS-induced inflammation affects the enteric glia differently across the intestinal segments, we evaluated the expressions of two glial activity markers, GFAP and S100B protein, in different intestine segments, at 1h, 24h and 7days after acute systemic LPS administration (0.25 or 2.5mgkg(-1)) in rats. Histological inflammatory analysis indicated that the cecum was most affected when compared to the duodenum and proximal colon at the highest doses of LPS...
January 4, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28033253/postoperative-cognitive-changes-after-total-knee-arthroplasty-under-regional-anesthesia
#19
Young-Tae Jeon, Byung-Gun Kim, Young Ho Park, Hye-Min Sohn, Jungeun Kim, Seung Chan Kim, Seong Soo An, SangYun Kim
BACKGROUND: The type of postoperative cognitive decline after surgery under spinal anesthesia is unknown. We investigated the type of postoperative cognitive decline after total knee arthroplasty (TKA). Neuropsychological testing was conducted and the changes in cerebrospinal fluid (CSF) biomarkers after surgery were evaluated. METHODS: Fifteen patients who required bilateral TKA at a 1-week interval under spinal anesthesia were included. Neuropsychological tests were performed twice, once the day before the first operation and just before the second operation (usually 1 week after the first test) to determine cognitive decline...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28031000/modeling-the-kinetics-of-serum-glial-fibrillary-acidic-protein-ubiquitin-carboxyl-terminal-hydrolase-l1-and-s100b-concentrations-in-patients-with-traumatic-brain-injury
#20
Robert D Welch, Morgan Ellis, Lawrence M Lewis, Syed I Ayaz, Valerie H Mika, Scott Millis, Linda Papa
Glial fibrillary acidic protein (GFAP), ubiquitin carboxyl-terminal hydrolase-L1 (UCH-L1), and S100B have been shown to be predictive of patients with brain injury. Kinetics of these biomarkers in injured humans have not been extensively examined. This prospective multi-center study included patients with mild-to-moderate traumatic brain injury. Blood samples obtained at enrollment and every 6 h up to 24 h post-injury were assayed for GFAP, UCH-L1, and S100B. Random effects models examined changes in the biomarkers' level over time...
February 27, 2017: Journal of Neurotrauma
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