keyword
MENU ▼
Read by QxMD icon Read
search

zinc, brain

keyword
https://www.readbyqxmd.com/read/29205278/jack-aviv-and-brains-of-children
#1
REVIEW
Angelo A Lamola
Both lead intoxication in early childhood and deficient bilirubin-binding capacity (BBC) of blood in jaundiced neonates indicate risk for brain damage. Zinc protoporphyrin (ZPP) is a biomarker for lead intoxication (PbI) as well as well as for iron deficiency. Under the leadership of Jack Aviv, Aviv Biomedical, Inc. developed robust hematofluorometers for point-of-care assays of ZPP in blood and for the high-affinity BBC of blood. These assays use just drops of whole blood and are simple, fast and inexpensive...
December 4, 2017: Biopolymers
https://www.readbyqxmd.com/read/29202464/hedgehog-signaling-drives-medulloblastoma-growth-via-cdk6
#2
David R Raleigh, Pervinder K Choksi, Alexis Leigh Krup, Wasima Mayer, Nicole Santos, Jeremy F Reiter
Medulloblastoma, an aggressive cancer of the cerebellum, is among the most common pediatric brain tumors. Approximately one-third of medulloblastomas are associated with misactivation of the Hedgehog (Hh) pathway. GLI family zinc finger 2 (GLI2) coordinates the Hh transcriptional program; however, the GLI2 targets that promote cancer cell proliferation are unknown. Here, we incorporated a Gli2-EGFP allele into 2 different genetic mouse models of Hh-associated medulloblastoma. Hh signaling induced GLI2 binding to the Cdk6 promoter and activated Cdk6 expression, thereby promoting uncontrolled cell proliferation...
November 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29201196/lycium-barbarum-polysaccharide-protects-against-neurotoxicity-via-the-nrf2-ho-1-pathway
#3
Shumei Cao, Jianlong Du, Qiaohong Hei
The incidence of neurodegenerative diseases including Alzheimer's and Parkinson's disease has markedly increased over the past few decades. Oxidative stress is considered to be a common pathophysiological condition resulting in neurotoxicity. Lycium barbarum polysaccharide (LBP) is the major active component of Lycium barbarum L., which exhibit potent antioxidant activity. The current study investigated the neuroprotective effects of LBP in H2O2-treated PC12 cells in vitro and in CoCl2-treated rats in vivo...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29198021/alpha-synuclein-aggregation-ubiquitin-proteasome-system-impairment-and-l-dopa-response-in-zinc-induced-parkinsonism-resemblance-to-sporadic-parkinson-s-disease
#4
Vinod Kumar, Deepali Singh, Brajesh Kumar Singh, Shweta Singh, Namrata Mittra, Rakesh Roshan Jha, Devendra Kumar Patel, Chetna Singh
Alpha-synuclein (α-synuclein) aggregation and impairment of the Ubiquitin proteasome system (UPS) are implicated in Parkinson's disease (PD) pathogenesis. While zinc (Zn) induces dopaminergic neurodegeneration resulting in PD phenotype, its effect on protein aggregation and UPS has not yet been deciphered. The current study investigated the role of α-synuclein aggregation and UPS in Zn-induced Parkinsonism. Additionally, levodopa (L-Dopa) response was assessed in Zn-induced Parkinsonian model to establish its closeness with idiopathic PD...
December 2, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29196321/mt3-mmp-promotes-excitatory-synapse-formation-by-promoting-nogo-66-receptor-ectodomain-shedding
#5
Ricardo L Sanz, Gino B Ferraro, Johannes Kacervosky, Charleen Salesse, Elizabeth Gowing, Luyang Hua, Isabel Rambaldi, Francois Beaubien, Kenn Holmbeck, J F Cloutier, Martin Lévesque, Keith Murai, Alyson E Fournier
Cell surface molecules are dynamically regulated at the synapse to assemble and disassemble adhesive contacts that are important for synaptogenesis and for tuning synaptic transmission. Metalloproteinases dynamically regulate cellular behaviors through the processing of cell surface molecules. In the present study, we evaluated the role of membrane-type metalloproteinases (MT-MMPs) in excitatory synaptogenesis. We find that MT3-MMP and MT5-MMP are broadly expressed in the mouse cerebral cortex and that MT3-MMP loss-of-function interferes with excitatory synapse development in dissociated cortical neurons and in vivo We identify Nogo-66 receptor (NgR1) as an MT3-MMP substrate that is required for MT3-MMP-dependent synapse formation...
December 1, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29192919/oxidative-stress-induced-increase-of-intracellular-zinc-in-astrocytes-decreases-their-functional-expression-of-p2x7-receptors-and-engulfing-activity
#6
Takahiro Furuta, Ayumi Mukai, Akihiro Ohishi, Kentaro Nishida, Kazuki Nagasawa
Neuron-glia communication mediated by neuro- and glio-transmitters such as ATP and zinc is crucial for the maintenance of brain homeostasis, and its dysregulation is found under pathological conditions. It is reported that under oxidative stress-loaded conditions, astrocytes exhibit increased intra- and extra-cellular labile zinc, the latter triggering microglial M1 activation, while the pathophysiological role of the former remains unrevealed. In this study, we examined whether the oxidative stress-induced increase of intracellular labile zinc is involved in the P2X7 receptor (P2X7R)-mediated regulation of astrocytic engulfing activity...
December 1, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/29177978/zinc-deficiency-as-a-mediator-of-toxic-effects-of-alcohol-abuse
#7
REVIEW
Anatoly V Skalny, Margarita G Skalnaya, Andrei R Grabeklis, Anastasia A Skalnaya, Alexey A Tinkov
OBJECTIVE: To review data on the role of ethanol-induced alteration of Zn homeostasis in mediation of adverse effects of alcohol abuse. METHODS: The scholarly published articles on the association between Zn metabolism and alcohol-associated disorders (liver, brain, lung, gut dysfunction, and fetal alcohol syndrome) have been reviewed. RESULTS: It is demonstrated that alcohol-induced modulation of zinc transporters results in decreased Zn levels in lungs, liver, gut, and brain...
November 24, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/29177809/parallel-in-vivo-and-in-vitro-transcriptomics-analysis-reveals-calcium-and-zinc-signalling-in-the-brain-as-sensitive-targets-of-hbcd-neurotoxicity
#8
V Reffatto, J D Rasinger, T S Carroll, T Ganay, A-K Lundebye, I Sekler, M Hershfinkel, C Hogstrand
Hexabromocyclododecane (HBCD) is a brominated flame retardant (BFR) that accumulates in humans and affects the nervous system. To elucidate the mechanisms of HBCD neurotoxicity, we used transcriptomic profiling in brains of female mice exposed through their diet to HBCD (199 mg/kg body weight per day) for 28 days and compared with those of neuronal N2A and NSC-19 cell lines exposed to 1 or 2 µM HBCD. Similar pathways and functions were affected both in vivo and in vitro, including Ca2+ and Zn2+ signalling, glutamatergic neuron activity, apoptosis, and oxidative stress...
November 25, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29171639/nutritional-supplements-in-depressive-disorders
#9
Mónica Martínez-Cengotitabengoa, Ana González-Pinto
There is increasing evidence about the role of nutrients in mental health. An adequate intake of nutrients contributes to better overall health and mental health in particular. Major depression is a severe mental illness with a high prevalence for which effective treatments exist but not in all cases the patient’s remission is achieved. Therefore, it is increasingly aimed at optimizing the supply of nutrients necessary for adequate brain functioning as adjunctive therapy to antidepressant treatment in depressive disorders...
September 2017: Actas Españolas de Psiquiatría
https://www.readbyqxmd.com/read/29168792/zinc-signal-in-brain-diseases
#10
REVIEW
Stuart D Portbury, Paul A Adlard
The divalent cation zinc is an integral requirement for optimal cellular processes, whereby it contributes to the function of over 300 enzymes, regulates intracellular signal transduction, and contributes to efficient synaptic transmission in the central nervous system. Given the critical role of zinc in a breadth of cellular processes, its cellular distribution and local tissue level concentrations remain tightly regulated via a series of proteins, primarily including zinc transporter and zinc import proteins...
November 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29164515/early-life-exposure-to-cadmium-triggers-distinct-zn-dependent-protein-expression-patterns-and-impairs-brain-development
#11
Safa Ben Mimouna, Marouane Chemek, Sana Boughammoura, Mohamed Banni, Imed Messaoudi
The objective of this study was to determine if the brain development impairment induced by early-life exposure to cadmium (Cd) could result from changes in the expression pattern of distinct zinc (Zn)-dependent proteins. For this purpose, adult female rats receiving either tap water, Cd, Zn, or Cd + Zn in their drinking water during gestation and lactation periods were used. After birth, the male offspring were screened for locomotors and sensorial defects. At postnatal day 21 (PND 21), the male pups were sacrificed and their brains, liver, and plasma were taken for chemical, biochemical, and molecular analyses...
November 22, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/29155788/use-of-synaptic-zinc-histochemistry-to-reveal-different-regions-and-laminae-in-the-developing-and-adult-brain
#12
Reem Khalil, Jonathan B Levitt
Characterization of anatomical and functional brain organization and development requires accurate identification of distinct neural circuits and regions in the immature and adult brain. Here we describe a zinc histochemical staining procedure that reveals differences in staining patterns among different layers and brain regions. Others have utilized this procedure not only to reveal the distribution of zinc-containing neurons and circuits in the brain, but also to successfully delineate areal and laminar boundaries in the developing and adult brain in several species...
October 29, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29154038/dna-damage-and-neurodegenerative-phenotypes-in-aged-ciz1-null-mice
#13
Mohammad Moshahid Khan, Jianfeng Xiao, Damini Patel, Mark S LeDoux
Cell-cycle dysfunction and faulty DNA repair are closely intertwined pathobiological processes that may contribute to several neurodegenerative disorders. CDKN1A interacting zinc finger protein 1 (CIZ1) plays a critical role in DNA replication and cell-cycle progression at the G1/S checkpoint. Germline or somatic variants in CIZ1 have been linked to several neural and extra-neural diseases. Recently, we showed that germline knockout of Ciz1 is associated with motor and hematological abnormalities in young adult mice...
November 16, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29147139/insights-into-the-management-of-wilson-s-disease
#14
REVIEW
Mohmadshakil Kathawala, Gideon M Hirschfield
Wilson's disease is a rare, inherited autosomal recessive disease of copper metabolism, in which the causative gene, ATP7B, results in absent or reduced function of the ATP7B transporter important for biliary excretion of copper and incorporation of copper into caeruloplasmin. Affected patients accumulate excessive copper within the liver, brain and other tissues. A disease mainly of children, adolescents and young adults; clinical features vary from the asymptomatic state to chronic liver disease, acute liver failure, and neuropsychiatric manifestations...
November 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/29133437/abnormal-microglia-and-enhanced-inflammation-related-gene-transcription-in-mice-with-conditional-deletion-of-ctcf-in-camk2a-cre-expressing-neurons
#15
Bryan E McGill, Ruteja A Barve, Susan E Maloney, Amy Strickland, Nicholas Rensing, Peter Wang, Michael Wong, Richard Head, David F Wozniak, Jeffrey Milbrandt
CCCTC-binding factor (CTCF) is an 11 zinc finger DNA-binding domain protein that regulates gene expression by modifying three dimensional chromatin structure. Human mutations in CTCF cause intellectual disability and autistic features. Knocking out Ctcf in mouse embryonic neurons is lethal by neonatal age, but the effects of CTCF deficiency in postnatal neurons are less well studied. We knocked out Ctcf postnatally in glutamatergic forebrain neurons under the control of Camk2a-CreCtcfloxP/loxP ;Camk2a-Cre+ (Ctcf CKO) mice of both sexes were viable and exhibited profound deficits in spatial learning/memory, impaired motor co-ordination, and decreased sociability by 4 months of age...
November 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29111324/characterization-of-the-zinc-induced-shank3-interactome-of-mouse-synaptosome
#16
Yeunkum Lee, Jae Ryun Ryu, Hyojin Kang, Yoonhee Kim, Shinhyun Kim, Yinhua Zhang, Chunmei Jin, Hyo Min Cho, Won-Ki Kim, Woong Sun, Kihoon Han
Variants of the SHANK3 gene, which encodes a core scaffold protein of the postsynaptic density of excitatory synapses, have been causally associated with numerous brain disorders. Shank3 proteins directly bind zinc ions through their C-terminal sterile α motif domain, which enhances the multimerization and synaptic localization of Shank3, to regulate excitatory synaptic strength. However, no studies have explored whether zinc affects the protein interactions of Shank3, which might contribute to the synaptic changes observed after zinc application...
October 27, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29106556/location-matters-distinct-dna-methylation-patterns-in-gabaergic-interneuronal-populations-from-separate-microcircuits-within-the-human-hippocampus
#17
W Brad Ruzicka, Sivan Subburaju, Joseph T Coyle, Francine M Benes
Recent studies describe distinct DNA methylomes among phenotypic subclasses of neurons in the human brain, but variation in DNA methylation between common neuronal phenotypes distinguished by their function within distinct neural circuits remains an unexplored concept. Studies able to resolve epigenetic profiles at the level of microcircuits are needed to illuminate chromatin dynamics in the regulation of specific neuronal populations and circuits mediating normal and abnormal behaviors.The Illumina HumanMethylation450 BeadChip was used to assess genome-wide DNA methylation in stratum oriens GABAergic interneurons sampled by laser-microdissection from two discrete microcircuits along the trisynaptic pathway in postmortem human hippocampus from eight control, eight schizophrenia, and eight bipolar disorder subjects...
November 2, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29092635/hydrogen-sulfide-ameliorates-zinc-induced-cell-death-in-neuroblastoma-sh-sy5y-cells
#18
Megumi Shimoji, Hirokazu Hara, Tetsuro Kamiya, Kensuke Okuda, Tetsuo Adachi
Previous reports have demonstrated that excess zinc (Zn(2+)) released from nerve terminals following cerebral ischemia causes brain injury. Therefore, disturbance of Zn(2+) homeostasis in the brain is thought to be closely linked to neurotoxicity. Recently, hydrogen sulfide (H2S), a gaseous mediator, has been reported to ameliorate ischemic brain injury. However, its mechanism is not fully understood. In this study, we examined whether sodium hydrogen sulfide (NaHS), an H2S donor, protects against Zn(2+) cytotoxicity using human neuroblastoma SH-SY5Y cells...
November 1, 2017: Free Radical Research
https://www.readbyqxmd.com/read/29081063/selenium-and-zinc-against-a%C3%AE-25-35-induced-cytotoxicity-and-tau-phosphorylation-in-pc12-cells-and-inhibits-%C3%AE-cleavage-of-app
#19
Guang-Zhe Li, Fang Liu, Cui Xu, Jing-Yang Li, Yan-Ji Xu
Amyloid beta (Aβ) is the main component of the amyloid plaques that accumulate in the brains of Alzheimer patients. The present study was conducted to investigate whether the combined treatment with selenium (Se) and zinc (Zn) offers more beneficial effects than that provided by either of them alone in reversing Aβ25-35-induced neurotoxicity in PC12 cells. Cells were pretreated with 0.1 μmol/L of Se and Zn for 4 h, after treated with 10 mmol/L Aβ25-35 for 24 h. Cells were divided into control and five treated groups, and received either 10 mmol/L Aβ25-35,10 mmol/L Aβ25-35 + 0...
October 28, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/29080672/fezf1-is-a-novel-regulator-of-female-sex-behavior-in-mice
#20
Tomaz Büdefeld, Tanja Spanic, Milka Vrecl, Gregor Majdic
Female sexual behavior is a complex process regulated by multiple brain circuits and influenced by sex steroid hormones acting in the brain. Several regions in the hypothalamus have been implicated in the regulation of female sexual behavior although a complete circuitry involved in female sexual behavior is not understood. Fez family zinc finger 1 (Fezf1) gene is a brain specific gene that has been mostly studied in the context of olfactory development, although in a recent study, FEZF1 has been identified as one of the genes responsible for the development of Kallman syndrome...
November 13, 2017: Hormones and Behavior
keyword
keyword
97982
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"