keyword
MENU ▼
Read by QxMD icon Read
search

Organic brain

keyword
https://www.readbyqxmd.com/read/28732269/gyral-net-a-new-representation-of-cortical-folding-organization
#1
Hanbo Chen, Yujie Li, Fangfei Ge, Gang Li, Dinggang Shen, Tianming Liu
One distinct feature of the cerebral cortex is its convex (gyri) and concave (sulci) folding patterns. Due to the remarkable complexity and variability of gyral/sulcal shapes, it has been challenging to quantitatively model their organization patterns. Inspired by the observation that the lines of gyral crests can form a connected graph on each brain hemisphere, we propose a new representation of cortical gyri/sulci organization pattern - gyral net, which models cortical architecture from a graph perspective, starting with nodes and edges obtained from the reconstructed cortical surfaces...
July 15, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28731906/c1-inhibitor-treatment-decreases-renal-injury-in-an-established-brain-dead-rat-model
#2
Felix Poppelaars, Neeltina M Jager, Juha Kotimaa, Henri G D Leuvenink, Mohamed R Daha, Cees van Kooten, Marc A Seelen, Jeffrey Damman
BACKGROUND: Kidneys derived from brain-dead (BD) donors have lower graft survival rates compared to kidneys from living donors. Complement activation plays an important role in brain death. The aim of our study was therefore to investigate the effect of C1-inhibitor (C1-INH) on BD-induced renal injury. METHODS: Brain death was induced in rats by inflating a subdurally placed balloon catheter. Thirty minutes after BD, rats were treated with saline, low-dose or high-dose C1-INH...
July 21, 2017: Transplantation
https://www.readbyqxmd.com/read/28731567/integration-of-white-matter-network-is-associated-with-interindividual-differences-in-psychologically-mediated-placebo-response-in-migraine-patients
#3
Jixin Liu, Shaohui Ma, Junya Mu, Tao Chen, Qing Xu, Wanghuan Dun, Jie Tian, Ming Zhang
Individual differences of brain changes of neural communication and integration in the modular architecture of the human brain network exist for the repeated migraine attack and physical or psychological stressors. However, whether the interindividual variability in the migraine brain connectome predicts placebo response to placebo treatment is still unclear. Using DTI and graph theory approaches, we systematically investigated the topological organization of white matter networks in 71 patients with migraine without aura (MO) and 50 matched healthy controls at three levels: global network measure, nodal efficiency, and nodal intramodule/intermodule efficiency...
July 21, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28731430/neuroimaging-feature-terminology-a-controlled-terminology-for-the-annotation-of-brain-imaging-features
#4
Anandhi Iyappan, Erfan Younesi, Alberto Redolfi, Henri Vrooman, Shashank Khanna, Giovanni B Frisoni, Martin Hofmann-Apitius
Ontologies and terminologies are used for interoperability of knowledge and data in a standard manner among interdisciplinary research groups. Existing imaging ontologies capture general aspects of the imaging domain as a whole such as methodological concepts or calibrations of imaging instruments. However, none of the existing ontologies covers the diagnostic features measured by imaging technologies in the context of neurodegenerative diseases. Therefore, the Neuro-Imaging Feature Terminology (NIFT) was developed to organize the knowledge domain of measured brain features in association with neurodegenerative diseases by imaging technologies...
July 18, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28731302/lead-ii-binding-in-metallothioneins
#5
Daisy L Wong, Maureen E Merrifield-MacRae, Martin J Stillman
Heavy metal exposure has long been associated with metallothionein (MT) regulation and its functions. MT is a ubiquitous, cysteine-rich protein that is involved in homeostatic metal response for the essential metals zinc and copper, as well as detoxification of heavy metals; the most commonly proposed being cadmium. MT binds in vivo to a number of metals in addition to zinc, cadmium and copper, such as bismuth. In vitro, metallation with a wide range of metals (especially mercury, arsenic, and lead) has been reported using a variety of analytical methods...
April 10, 2017: Metal Ions in Life Sciences
https://www.readbyqxmd.com/read/28731267/heuristic-knowledge-based-planning-for-single-isocenter-stereotactic-radiosurgery-to-multiple-brain-metastases
#6
Benjamin P Ziemer, Parag Sanghvi, Jona Hattangadi-Gluth, Kevin L Moore
PURPOSE: Single-isocenter, volumetric modulated arc therapy (VMAT) stereotactic radiosurgery (SRS) for multiple brain metastases (multi-mets) can deliver highly conformal dose distributions and reduce overall patient treatment time compared to other techniques. However, treatment planning for multi-met cases is highly complex due to variability in numbers and sizes of brain metastases, as well as their relative proximity to organs-at-risk (OARs). The purpose of this study was to automate the VMAT planning of multi-met cases through a knowledge-based planning (KBP) approach that adapts single target SRS dose predictions to multiple target predictions...
July 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/28731165/homeobox%C3%A2-containing-protein-1-loss-is-associated-with-clinicopathological-performance-in-glioma
#7
Ping Zhang, Qinglin Liu, Shaofeng Yan, Guang Yuan, Jie Shen, Gang Li
Homeobox-containing protein 1 (HMBOX1) is a novel member of the homeobox family, and abnormal expression of HMBOX1 has been observed in several types of carcinoma. A total of 144 cases of confirmed glioma diagnoses were included in the present study. Grading was performed according to the World Health Organization (WHO) grading system for central nervous system neoplasm. Immunohistochemical staining of HMBOX1, proliferation marker protein Ki‑67 (Ki‑67) and microvessel density (MVD) was performed, and scores were calculated...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28730936/an-industry-update-what-is-the-latest-news-in-therapeutic-delivery
#8
Iain Simpson
This Industry Update covers the period from 1 through 30 April 2017, and is based on information sourced from company press releases, scientific literature, patents and various news websites. Biogen expanded its portfolio of developmental drugs targeting neurological diseases by licensing a drug from Bristol-Myers Squibb which is currently under investigation for the treatment of progressive supranuclear palsy. Takeda announced a deal with NuBiyota focused on developing treatments for gastrointestinal disorders, based on the manipulation of microbes living in the gut...
July 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28730467/organ-retention-of-gadolinium-in-mother-and-pup-mice-effect-of-pregnancy-and-type-of-gadolinium-based-contrast-agents
#9
Khongorzul Erdene, Takahito Nakajima, Satomi Kameo, Miski Aghnia Khairinisa, Oyunbold Lamid-Ochir, Amartuvshin Tumenjargal, Noriyuki Koibuchi, Hiroshi Koyama, Yoshito Tsushima
PURPOSE: To investigate the effect of pregnancy and type of gadolinium (Gd)-based contrast agents (GBCAs) on organ retention of Gd in mother and pup mice after maternal administration. MATERIALS AND METHODS: Gd-DTPA-BMA (gadodiamide) or Gd-DOTA (gadoterate dimeglumine) was administered (2.0 mmol/kg of maternal weight) four times to pregnant Balb/c mice from gestational day 16-19, respectively. At 28 days after birth, they were euthanized and their organs (blood, brain, liver, kidney, spleen, and bone) were removed for the measurement of Gd by inductively coupled plasma mass spectrometry...
July 20, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28730221/usefulness-of-ultrastructure-studies-for-the-estimation-of-the-postmortem-interval-a-systematic-review
#10
Sorin Hostiuc, Mugurel Constantin Rusu, Vasile Sorin Mănoiu, Alexandra Diana Vrapciu, IonuŢ Negoi, Maria Viorela Popescu
Establishing the postmortem interval (PMI) is vital in legal medicine as it allows to retrospectively estimate the hour of death, which is essential for the police as a starting point for their inquiries (especially in violent deaths). Ultrastructure studies aimed specifically to detect autolytic changes are scarcely identified in the scientific literature. Moreover, they are performed in a variety of conditions (different temperatures, species, in vitro ÷ in situ, and so on), making the results difficult to interpret for legal medicine purposes...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729907/current-status-of-pediatric-transplantation-in-japan
#11
REVIEW
Nao Nishimura, Mureo Kasahara, Kenji Ishikura, Satoshi Nakagawa
Brain-dead donor organ transplantation has been available to children in Japan since the 2010 revision of the Organ Transplant Law. Of the 50-60 brain-dead donor organ transplants performed annually in Japan, however, very few (0-4 per year) are performed in children. Again, while those receiving liver, heart, and kidney transplants are reported to fare better than their counterparts in the rest of the world, organ shortage is becoming a matter of great concern. Very few organs become available from brain-dead donors or are transplanted to adults if made available at all, with some children dying while on the brain-dead organ waiting list...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28729419/the-exocyst-is-required-for-photoreceptor-ciliogenesis-and-retinal-development
#12
Glenn P Lobo, Diana Fulmer, Lilong Guo, Xiaofeng Zuo, Yujing Dang, Seok-Hyung Kim, Yanhui Su, Kola George, Elisabeth Obert, Ben Fogelgren, Deepak Nihalani, Russell A Norris, Bärbel Rohrer, Joshua H Lipschutz
We previously have shown that the highly-conserved eight-protein exocyst trafficking complex is required for ciliogenesis in kidney tubule cells. We hypothesized here that ciliogenic programs are conserved across organs and species. To determine if renal primary ciliogenic programs are conserved in the eye, and to characterize the function and mechanisms by which the exocyst regulates eye development in zebrafish, we focused on exoc5, a central component of the exocyst complex, by analyzing both exoc5 zebrafish mutants, and photoreceptor-specific Exoc5 knockout mice...
July 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28729159/what-do-we-know-about-laminar-connectivity
#13
REVIEW
Kathleen S Rockland
In this brief review, I attempt an overview of the main components of anatomical laminar-level connectivity. These are: extrinsic outputs, excitatory and inhibitory intrinsic connectivity, and intrinsic inputs. Supporting data are biased from the visual system of nonhuman primates (NHPs), but I have drawn as much as possible from a broader span in order to treat the important issue of area-specific variability. In a second part, I briefly discuss laminar connectivity in the context of network organization (feedforward/feedback cortical connections, and the major types of corticothalamic connections)...
July 17, 2017: NeuroImage
https://www.readbyqxmd.com/read/28729151/standard-dose-pembrolizumab-in-combination-with-reduced-dose-ipilimumab-for-patients-with-advanced-melanoma-keynote-029-an-open-label-phase-1b-trial
#14
Georgina V Long, Victoria Atkinson, Jonathan S Cebon, Michael B Jameson, Bernie M Fitzharris, Catriona M McNeil, Andrew G Hill, Antoni Ribas, Michael B Atkins, John A Thompson, Wen-Jen Hwu, F Stephen Hodi, Alexander M Menzies, Alexander D Guminski, Richard Kefford, Benjamin Y Kong, Babak Tamjid, Archana Srivastava, Anna J Lomax, Mohammed Islam, Xinxin Shu, Scot Ebbinghaus, Nageatte Ibrahim, Matteo S Carlino
BACKGROUND: Reduced-dose nivolumab in combination with standard-dose ipilimumab improves objective response and progression-free survival compared with standard-dose ipilimumab alone, but increases toxicity. We assessed the safety and anti-tumour activity of standard-dose pembrolizumab in combination with reduced-dose ipilimumab. METHODS: In this open-label, phase 1b trial, we recruited patients from 12 medical centres in Australia, New Zealand, and the USA. Eligible patients were aged at least 18 years, had advanced melanoma, had an Eastern Coooperative Oncology Group performance status of 0 or 1, had measurable disease according to the Response Evaluation Criteria in Solid Tumors (RECIST) version 1...
July 17, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28729049/quantification-of-metastatic-load-in-a-syngeneic-murine-model-of-metastasis
#15
Luke J Taus, Roberto E Flores, Thomas N Seyfried
Bioluminescence imaging (BLI) is an established method for evaluating metastatic load in preclinical cancer models; however, BLI can produce observational error due to differences in substrate concentration and signal depth. In our syngeneic murine model of metastasis (VM-M3), we used a quantitative polymerase chain reaction (qPCR) method of DNA quantification to bypass these limitations. Liver, spleen, and brain from VM/Dk (VM) mice bearing VM-M3 tumor cells were first imaged ex vivo with BLI. qPCR quantification of tumor cell DNA was then performed on DNA extracted from these organs...
July 17, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28728419/apoferritin-nanocage-for-brain-targeted-doxorubicin-delivery
#16
Zhijiang Chen, Meifang Zhai, Xiang Yang Xie, Yue Zhang, Siyu Ma, Zhiping Li, Fanglin Yu, Baoquan Zhao, Min Zhang, Yang Yang, Xingguo Mei
An ideal brain-targeted nanocarrier must be sufficiently potent to penetrate the blood-brain barrier (BBB) and sufficiently competent to target the cells of interest with adequate optimized physiochemical features and biocompatibility. However, it is an enormous challenge to the researchers to organize the abovementioned properties into a single nanocarrier particle. New frontiers in nanomedicine are advancing the research of new biomaterials. Herein, we demonstrate a straightforward strategy for brain targeting by encapsulating doxorubicin (DOX) into a naturally available and unmodified apoferritin nanocage (DOX-loaded APO)...
July 20, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28728026/parallel-interdigitated-distributed-networks-within-the-individual-estimated-by-intrinsic-functional-connectivity
#17
Rodrigo M Braga, Randy L Buckner
Certain organizational features of brain networks present in the individual are lost when central tendencies are examined in the group. Here we investigated the detailed network organization of four individuals each scanned 24 times using MRI. We discovered that the distributed network known as the default network is comprised of two separate networks possessing adjacent regions in eight or more cortical zones. A distinction between the networks is that one is coupled to the hippocampal formation while the other is not...
July 19, 2017: Neuron
https://www.readbyqxmd.com/read/28728019/unraveling-the-complex-tapestry-of-association-networks
#18
Daniel S Margulies
Prior group-level studies have described several large-scale distributed networks within association cortex. In this issue of Neuron, Braga and Buckner (2017) attend to the individual brain, revealing a challenging new portrait of its fine-grained organization.
July 19, 2017: Neuron
https://www.readbyqxmd.com/read/28727121/supplementing-newborn-intrauterine-growth-restricted-piglets-with-a-bolus-of-porcine-colostrum-raises-rectal-temperatures-one-degree-celsius
#19
C Amdi, L L Jensen, N Oksbjerg, C F Hansen
Hyperprolific sows have increased litter sizes but also result in more piglets that have been exposed to intrauterine growth restriction (IUGR). These IUGR piglets are likely to have a low rectal temperature and lower blood glucose levels compared with normal piglets at birth. Therefore, we hypothesized that a colostrum bolus at birth and/or heat from an external source would have a positive effect on blood glucose levels, rectal temperatures, and growth up to 8 h postpartum. In addition, liver glycogen and blood values at 8 h were investigated...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28726587/repair-of-tympanic-membrane-perforations-with-customized-bioprinted-ear-grafts-using-chinchilla-models
#20
Che-Ying Kuo, Emmanuel Wilson, Andrew Fuson, Nidhi Gandhi, Reza Monfaredi, Audrey Jenkins, Maria Romero, Marco Santoro, John P Fisher, Kevin Cleary, Brian Reilly
The goal of this work is to develop an innovative method that combines bioprinting and endoscopic imaging to repair tympanic membrane perforations (TMPs). TMPs are a serious health issue because they can lead to both conductive hearing loss and repeated otitis media. TMPs occur in 3 to 5% of cases after ear tube placement as well as in cases of acute otitis media (the second most common infection in pediatrics), chronic otitis media with or without cholesteatoma, or as a result of barotrauma to the ear. About 55,000 tympanoplasties, the surgery performed to reconstruct TMPs, are performed every year and the commonly used cartilage grafting technique has a success rate between 43% to 100%...
July 20, 2017: Tissue Engineering. Part A
keyword
keyword
32236
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"