keyword
MENU ▼
Read by QxMD icon Read
search

Brain surface

keyword
https://www.readbyqxmd.com/read/28549973/targeted-delivery-of-rosmarinic-acid-across-the-blood-brain-barrier-for-neuronal-rescue-using-polyacrylamide-chitosan-poly-lactide-co-glycolide-nanoparticles-with-surface-cross-reacting-material-197-and-apolipoprotein-e
#1
Yung-Chih Kuo, Rajendiran Rajesh
Rosmarinic acid-loaded polyacrylamide-chitosan-poly(lactide-co-glycolide) nanoparticles (RA-PAAM-CH-PLGA NPs) were grafted with cross-reacting material 197 (CRM197) and apolipoprotein E (ApoE) for targeting of the blood-brain barrier (BBB) and rescuing degenerated neurons. The polymeric nanocarriers were prepared by microemulsion, solvent diffusion, grafting, and surface modification, and CRM197-ApoE-RA-PAAM-CH-PLGA NPs were used to treat human brain-microvascular endothelial cells, RWA264.7 cells, and Aβ-insulted SK-N-MC cells...
May 23, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28549949/recent-advancements-in-liposomes-targeting-strategies-to-cross-blood-brain-barrier-bbb-for-the-treatment-of-alzheimer-s-disease
#2
REVIEW
Mukta Agrawal, Ajazuddin, Dulal K Tripathi, Swarnlata Saraf, Shailendra Saraf, Sophia G Antimisiaris, Spyridon Mourtas, Margareta Hammarlund-Udenaes, Amit Alexander
In this modern era, with the help of various advanced technologies, medical science has overcome most of the health-related issues successfully. Though, some diseases still remain unresolved due to various physiological barriers. One such condition is Alzheimer; a neurodegenerative disorder characterized by progressive memory impairment, behavioral abnormalities, mood swing and disturbed routine activities of the person suffering from. It is well known to all that the brain is entirely covered by a protective layer commonly known as blood brain barrier (BBB) which is responsible to maintain the homeostasis of brain by restricting the entry of toxic substances, drug molecules, various proteins and peptides, small hydrophilic molecules, large lipophilic substances and so many other peripheral components to protect the brain from any harmful stimuli...
May 23, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28549318/brain-neurodevelopmental-markers-related-to-the-deficit-subtype-of-schizophrenia
#3
Tsutomu Takahashi, Yoichiro Takayanagi, Yumiko Nishikawa, Mihoko Nakamura, Yuko Komori, Atsushi Furuichi, Mikio Kido, Daiki Sasabayashi, Kyo Noguchi, Michio Suzuki
Deficit schizophrenia is a homogeneous subtype characterized by a trait-like feature of primary and prominent negative symptoms, but the etiologic factors related to this specific subtype remain largely unknown. This magnetic resonance imaging study aimed to examine gross brain morphology that probably reflects early neurodevelopment in 38 patients with deficit schizophrenia, 37 patients with non-deficit schizophrenia, and 59 healthy controls. Potential brain neurodevelopmental markers investigated in this study were the adhesio interthalamica (AI), cavum septi pellucidi (CSP), and surface morphology (i...
May 20, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28549217/surface-enhanced-raman-scattering-active-gold-nanoparticles-with-enzyme-mimicking-activities-for-measuring-glucose-and-lactate-in-living-tissues
#4
Yihui Hu, Hanjun Cheng, Xiaozhi Zhao, Jiangjiexing Wu, Faheem Muhammad, Shichao Lin, Jian He, Liqi Zhou, Chengping Zhang, Yu Deng, Peng Wang, Zhengyang Zhou, Shuming Nie, Hui Wei
Gold nanoparticles (AuNPs) with simultaneous plasmonic and biocatalytic properties provide a promising approach to developing versatile bioassays. However, the combination of AuNPs' intrinsic enzyme mimicking properties with their surface-enhanced Ra-man scattering (SERS) activities has yet to be explored. Here we designed a peroxidase mimicking nanozyme by in situ growing AuNPs into a highly porous and thermally stable metal-organic framework (MOF) called MIL-101. The obtained AuNPs@MIL-101 nanozymes acted as the peroxidase mimics to oxidize Raman inactive reporter leucomalachite green (LMG) into the active malachite green (MG) with hydrogen peroxide, and simultaneously as the SERS substrates to enhance the Raman signals of the as-produced MG...
May 26, 2017: ACS Nano
https://www.readbyqxmd.com/read/28548570/embolic-mycotic-encephalitis-in-a-cow-following-mortierella-wolfii-infection-of-a-surgery-site
#5
Benjamin Curtis, Charlotte Hollinger, Ailam Lim, Matti Kiupel
A 5-y-old Holstein dairy cow had surgery for a suspected displaced abomasum 10 d postpartum, developed acute neurologic signs at day 19, and was found dead 21 d postpartum. At autopsy, there was a peri-incisional intramuscular abscess that communicated with the peritoneal cavity, as well as hemorrhage and malacia involving the brain, and multiple nodules in the liver, kidneys, and lungs. Fungal hyphae were seen histologically at the surgery site, on the surface of the liver, and in lesions of severe necrotizing vasculitis in the lungs, kidneys, brain, and liver...
May 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28544954/long-term-attention-deficits-combined-with-subcortical-and-cortical-structural-central-nervous-system-alterations-in-young-adults-born-small-for-gestational-age
#6
Sabrina Suffren, Diego Angulo, Yang Ding, Pablo Reyes, Jorge Marin, Jose T Hernandez, Nathalie Charpak, Gregory A Lodygensky
BACKGROUND: Being born small for gestational age has been associated with neurodevelopmental disabilities and smaller gray matter volumes in childhood. However, it is not known if these changes persist in adults and whether SGA has any impact on attention memory and IQ. AIMS: The goal of this study was to evaluate the association between birth weight and gray matter anatomy in adults born small for gestational age at term, in relation to IQ, attention and memory...
May 22, 2017: Early Human Development
https://www.readbyqxmd.com/read/28542481/effect-of-hyperbaric-oxygen-on-bdnf-release-and-neuroprotection-investigations-with-human-mesenchymal-stem-cells-and-genetically-modified-nih3t3-fibroblasts-as-putative-cell-therapeutics
#7
Jennifer Schulze, Odett Kaiser, Gerrit Paasche, Hans Lamm, Andreas Pich, Andrea Hoffmann, Thomas Lenarz, Athanasia Warnecke
Hyperbaric oxygen therapy (HBOT) is a noninvasive widely applied treatment that increases the oxygen pressure in tissues. In cochlear implant (CI) research, intracochlear application of neurotrophic factors (NTFs) is able to improve survival of spiral ganglion neurons (SGN) after deafness. Cell-based delivery of NTFs such as brain-derived neurotrophic factor (BDNF) may be realized by cell-coating of the surface of the CI electrode. Human mesenchymal stem cells (MSC) secrete a variety of different neurotrophic factors and may be used for the development of a biohybrid electrode in order to release endogenously-derived neuroprotective factors for the protection of residual SGN and for a guided outgrowth of dendrites in the direction of the CI electrode...
2017: PloS One
https://www.readbyqxmd.com/read/28541655/in-vitro-study-of-receptor-mediated-silica-nanoparticles-delivery-across-blood-brain-barrier
#8
Yang Song, Dan Du, Lei Li, Jun Xu, Prashanta Dutta, Yuehe Lin
A brain drug delivery system has been demonstrated by attaching lactoferrin (Lf) on the silica nanoparticles (Si NPs). The nanoparticle surface was modified with the polyethylene glycol to reduce protein adsorption. The transport efficiency of Lf attached Si NPs was studied using an in vitro blood-brain barrier (BBB) model consists of three distinct types of cells: endocytes, pericytes and astrocytes. Transfer of NPs from the apical side to the basolateral side is observed. The results indicated that Lf attached Si NPs demonstrated enhanced transport efficiency across the BBB with size-dependent compared to bare Si NPs...
May 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28538701/chlorpromazine-increases-the-expression-of-polysialic-acid-polysia-in-human-neuroblastoma-cells-and-mouse-prefrontal-cortex
#9
Chikara Abe, Saki Nishimura, Airi Mori, Yuki Niimi, Yi Yang, Masaya Hane, Ken Kitajima, Chihiro Sato
The neural cell adhesion molecule (NCAM) is modified by polysialic acid (polySia or PSA) in embryonic brains. In adult brains, polySia modification of NCAM is only observed in restricted areas where neural plasticity, remodeling of neural connections, or neural generation is ongoing although the amount of NCAM remains unchanged. Impairments of the polySia-expression and several single nucleotide polymorphisms (SNPs) of the polysialyltransferase (polyST) ST8SIA2 gene are reported to be associated with schizophrenia and bipolar disorder...
May 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28538681/human-thalamic-somatosensory-nucleus-ventral-caudal-vc-as-a-locus-for-stimulation-by-inputs-from-tactile-noxious-and-thermal-sensors-on-an-active-prosthesis
#10
REVIEW
Jui Hong Chien, Anna Korzeniewska, Luana Colloca, Claudia Campbell, Patrick Dougherty, Frederick Lenz
The forebrain somatic sensory locus for input from sensors on the surface of an active prosthesis is an important component of the Brain Machine Interface. We now review the neuronal responses to controlled cutaneous stimuli and the sensations produced by Threshold Stimulation at Microampere current levels (TMIS) in such a locus, the human thalamic Ventral Caudal nucleus (Vc). The responses of these neurons to tactile stimuli mirror those for the corresponding class of tactile mechanoreceptor fiber in the peripheral nerve, and TMIS can evoke sensations like those produced by the stimuli that optimally activate each class...
May 24, 2017: Sensors
https://www.readbyqxmd.com/read/28536344/aptamer-technology-adjunct-therapy-for-malaria
#11
REVIEW
Nik Abdul Aziz Nik Kamarudin, Nurul Adila Mohammed, Khairul Mohd Fadzli Mustaffa
Malaria is a life-threatening parasitic infection occurring in the endemic areas, primarily in children under the age of five, pregnant women, and patients with human immunodeficiency virus and acquired immunodeficiency syndrome (HIV)/(AIDS) as well as non-immune individuals. The cytoadherence of infected erythrocytes (IEs) to the host endothelial surface receptor is a known factor that contributes to the increased prevalence of severe malaria cases due to the accumulation of IEs, mainly in the brain and other vital organs...
January 4, 2017: Biomedicines
https://www.readbyqxmd.com/read/28536274/mapping-22q11-2-gene-dosage-effects-on-brain-morphometry
#12
Amy Lin, Christopher R K Ching, Ariana Vajdi, Daqiang Sun, Rachel K Jonas, Maria Jalbrzikowski, Leila Kushan-Wells, Laura Pacheco Hansen, Emma Krikorian, Boris Gutman, Deepika Dokoru, Gerhard Helleman, Paul M Thompson, Carrie E Bearden
Reciprocal chromosomal rearrangements at the 22q11.2 locus are associated with elevated risk of neurodevelopmental disorders. The 22q11.2 deletion confers the highest known genetic risk for schizophrenia, but a duplication in the same region is strongly associated with autism and is less common in schizophrenia cases than in the general population. Here we conducted the first study of 22q11.2 gene dosage effects on brain structure in a sample of 143 human subjects: 66 with 22q11.2 deletions (22q-del; 32 males), 21 with 22q11...
May 23, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28536106/alpha-2-subunit-containing-gabaa-receptor-subtypes-are-up-regulated-and-contribute-to-alcohol-induced-functional-plasticity-in-rat-hippocampus
#13
A Kerstin Lindemeyer, Yi Shen, Ferin Yazdani, Xuesi M Shao, Igor Spigelman, Daryl L Davies, Richard W Olsen, Jing Liang
Alcohol(EtOH)intoxication causes changes in rodent brain GABAA receptor (GABAAR) subunit composition and function, playing a crucial role in EtOH withdrawal symptoms and dependence. Building evidence indicates withdrawal from acute EtOH and chronic intermittent EtOH (CIE) results in decreased EtOH-enhanced GABAAR δ subunit-containing extrasynaptic and EtOH-insensitive α1βγ2 subtype synaptic GABAARs, but increased synaptic α4βγ2 subtype, and increased EtOH sensitivity of GABAAR miniature postsynaptic currents (mIPSCs) correlated with EtOH dependence...
May 23, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28535920/cyberknife%C3%A2-m6%C3%A2-peripheral-dose-evaluation-for-brain-treatments
#14
N Delaby, J Bellec, J Bouvier, F Jouyaux, M Perdrieux, J Castelli, I Lecouillard, J P Manens, C Lafond
PURPOSE: This study evaluates the peripheral dose (PD) delivered to healthy tissues for brain stereotactic radiotherapy treatments (SRT) performed with a CyberKnife M6™ Robotic Radiosurgery System and proposes a model to estimate PD before treatment. METHOD: PD was measured with thermoluminescent dosimeters. Measurements were performed to evaluate the influence of distance, collimator type (fixed or Iris™) and aperture size on PD for typical brain treatment plans simulated on an anthropomorphic phantom...
May 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28535372/a-brain-region-specific-neural-pathway-regulating-germinal-matrix-angiogenesis
#15
Shang Ma, Devi Santhosh, Peeyush Kumar T, Zhen Huang
Intimate communication between neural and vascular cells is critical for normal brain development and function. Germinal matrix (GM), a key primordium for the brain reward circuitry, is unique among brain regions for its distinct pace of angiogenesis and selective vulnerability to hemorrhage during development. A major neonatal condition, GM hemorrhage can lead to cerebral palsy, hydrocephalus, and mental retardation. Here we identify a brain-region-specific neural progenitor-based signaling pathway dedicated to regulating GM vessel development...
May 22, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28534212/breast-cancer-metastasis-putative-therapeutic-role-of-vascular-cell-adhesion-molecule-1
#16
REVIEW
Rohit Sharma, Rohini Sharma, Tejinder Pal Khaket, Chanchala Dutta, Bornisha Chakraborty, Tapan Kumar Mukherjee
BACKGROUND: Breast cancer is a notable cause of cancer-related death in women worldwide. Metastasis to distant organs is responsible for ~90% of this death. Breast cells convert to malignant cancer cells after acquiring the capacity of invasion/intravasation into surrounding tissues and, finally, extravasation/metastasis to distant organs (i.e., lymph nodes, lungs, bone, brain). Metastasis to distant organs depends on interactions between disseminated tumor cells (DTCs) and the endothelium of blood vessels present in the tumor microenvironment...
May 22, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28533468/vacuolation-activity-and-intracellular-trafficking-of-artb-the-binding-subunit-of-an-ab5-toxin-produced-by-salmonella-enterica-serovar-typhi
#17
Brock P Herdman, James C Paton, Hui Wang, Travis Beddoe, Adrienne W Paton
Various Salmonella enterica serovars, including S Typhi, encode an AB5 toxin (ArtAB), the A subunit of which is an ADP-ribosyltransferase related to the S1 subunit of pertussis toxin. However, although the A subunit is able to catalyse ADP-ribosylation of host G proteins, a cytotoxic phenotype has yet to be identified for the holotoxin. Here we show that its B subunit pentamer (ArtB) binds to receptors on the surface of Vero (African green monkey kidney), CHO (Chinese hamster ovary), U937 (human monocyte) and HBMEC (human brain microvascular endothelial) cell lines...
May 22, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28533392/syringe-injectable-mesh-electronics-integrate-seamlessly-with-minimal-chronic-immune-response-in-the-brain
#18
Tao Zhou, Guosong Hong, Tian-Ming Fu, Xiao Yang, Thomas G Schuhmann, Robert D Viveros, Charles M Lieber
Implantation of electrical probes into the brain has been central to both neuroscience research and biomedical applications, although conventional probes induce gliosis in surrounding tissue. We recently reported ultraflexible open mesh electronics implanted into rodent brains by syringe injection that exhibit promising chronic tissue response and recording stability. Here we report time-dependent histology studies of the mesh electronics/brain-tissue interface obtained from sections perpendicular and parallel to probe long axis, as well as studies of conventional flexible thin-film probes...
May 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28532360/the-human-brain-in-depth-how-we-see-in-3d
#19
Andrew E Welchman
Human perception is remarkably flexible: We experience vivid three-dimensional (3D) structure under diverse conditions, from the seemingly random magic-eye stereograms to the aesthetically beautiful, but obviously flat, canvases of the Old Masters. How does the brain achieve this apparently effortless robustness? Using brain imaging we are beginning to discover how different parts of the visual cortex support 3D perception by tracing different computations in the dorsal and ventral pathways. This review concentrates on studies of binocular disparity and its combination with other depth cues...
October 14, 2016: Annual Review of Vision Science
https://www.readbyqxmd.com/read/28532109/lactoferrin-modified-graphene-oxide-iron-oxide-nanocomposite-for-glioma-targeted-drug-delivery
#20
Meng-Meng Song, Huai-Liang Xu, Jun-Xing Liang, Hui-Hui Xiang, Rui Liu, Yu-Xian Shen
Targeting delivery of drugs in a specific manner represents a potential powerful technology in gliomas. Herein, we prepared a multifunctional targeted delivery system based on graphene oxide (GO) that contains a molecular bio-targeting ligand and superparamagnetic iron oxide nanoparticles on the surface of GO for magnetic targeting. Superparamagnetic Fe3O4 nanoparticles was loaded on the surface of GO via chemical precipitation method to form GO@Fe3O4 nanocomposites. Lactoferrin (Lf), an iron-transporting serum glycoprotein that binds to receptors overexpressed at the surface of glioma cells and vascular endothelial cell of the blood brain barrier, was chosen as the targeted ligand to construct the targeted delivery system Lf@GO@Fe3O4 through EDC/NHS chemistry...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
keyword
keyword
99804
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"