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https://www.readbyqxmd.com/read/29027859/quantitative-cerebral-blood-flow-using-xenon-enhanced-ct-after-decompressive-craniectomy-in-traumatic-brain-injury
#1
Aditya Vedantam, Claudia S Robertson, Shankar P Gopinath
OBJECTIVE Few studies have reported on changes in quantitative cerebral blood flow (CBF) after decompressive craniectomy and the impact of these measures on clinical outcome. The aim of the present study was to evaluate global and regional CBF patterns in relation to cerebral hemodynamic parameters in patients after decompressive craniectomy for traumatic brain injury (TBI). METHODS The authors studied clinical and imaging data of patients who underwent xenon-enhanced CT (XeCT) CBF studies after decompressive craniectomy for evacuation of a mass lesion and/or to relieve intractable intracranial hypertension...
October 13, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29027511/evaluation-of-a-frequency-lowering-algorithm-for-adults-with-high-frequency-hearing-loss
#2
Marina Salorio-Corbetto, Thomas Baer, Brian C J Moore
The objective was to determine the effects of a frequency-lowering algorithm (frequency composition, Fcomp) on consonant identification, word-final /s, z/ detection, the intelligibility of sentences in noise, and subjective benefit, for people with high-frequency hearing loss, including people with dead regions (DRs) in the cochlea. A single-blind randomized crossover design was used. Performance with Bernafon Acriva 9 hearing aids was compared with Fcomp off and Fcomp on. Participants wore the hearing aids in each condition in a counterbalanced order...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/29023552/the-impact-of-male-burials-on-the-construction-of-corded-ware-identity-reconstructing-networks-of-information-in-the-3rd-millennium-bc
#3
Quentin Bourgeois, Erik Kroon
The emergence of Corded Ware Groups throughout Europe in the 3rd millennium BC is one of the most defining events in European history. From the Wolga to the Rhine communities start to speak Indo-European languages and bury their dead in an extremely similar fashion. Recent ancient DNA-analyses identify a massive migration from the Eurasian steppe as the prime cause for this event. However, there is a fundamental difference between expressing a Corded Ware identity-the sharing of world views and ideas-and having a specific DNA-profile...
2017: PloS One
https://www.readbyqxmd.com/read/29022361/interactions-of-quercetin-with-receptor-tyrosine-kinases-associated-with-human-lung-carcinoma
#4
Bincy Baby, Priya Antony, Ranjit Vijayan
Lung cancer is a deadly form of cancer with high morbidity and mortality rates. Deregulated receptor tyrosine kinases (RTKs) are frequently associated with the formation and development of lung carcinoma. Quercetin is a major dietary flavonoid that has been shown to induce cell growth inhibition and apoptosis in human lung cancer cell lines. In the current study, four major overexpressed RTKs - EGFR, FGFR1, IGF1R and c-Met - involved in human lung cancer were investigated. Molecular docking was employed to identify the binding orientation and inhibitory potential of quercetin in these RTKs...
October 12, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28986589/post-fire-carbon-and-nitrogen-accumulation-and-succession-in-central-siberia
#5
Markku Larjavaara, Frank Berninger, Marjo Palviainen, Anatoly Prokushkin, Tuomo Wallenius
Improved understanding of carbon (C) accumulation after a boreal fire enables more accurate quantification of the C implications caused by potential fire regime shifts. We coupled results from a fire history study with biomass and soil sampling in a remote and little-studied region that represents a vast area of boreal taiga. We used an inventory approach based on predefined plot locations, thus avoiding problems potentially causing bias related to the standard chronosequence approach. The disadvantage of our inventory approach is that more plots are needed to expose trends...
October 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28984304/clinicopathological-and-genomic-analysis-of-double-hit-follicular-lymphoma-comparison-with-high-grade-b-cell-lymphoma-with-myc-and-bcl2-and-or-bcl6-rearrangements
#6
Masashi Miyaoka, Yara Y Kikuti, Joaquim Carreras, Haruka Ikoma, Shinichiro Hiraiwa, Akifumi Ichiki, Minoru Kojima, Kiyoshi Ando, Tomoyuki Yokose, Rika Sakai, Masahiro Hoshikawa, Naoto Tomita, Ikuo Miura, Katsuyoshi Takata, Tadashi Yoshino, Jun Takizawa, Silvia Bea, Elias Campo, Naoya Nakamura
Most high-grade B-cell lymphomas with MYC and BCL2 and/or BCL6 rearrangements are aggressive B-cell lymphomas. Occasional double-hit follicular lymphomas have been described but the clinicopathological features of these tumors are not well known. To clarify the characteristics of double-hit follicular lymphomas, we analyzed 10 cases of double-hit follicular lymphomas and 15 cases of high-grade B-cell lymphomas with MYC and BCL2 and/or BCL6 rearrangements for clinicopathological and genome-wide copy-number alterations and copy-neutral loss-of-heterozygosity profiles...
October 6, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28980391/the-duration-of-asystolic-ischemia-time-determines-the-risk-of-graft-failure-after-circulatory-dead-donor-kidney-transplantation-a-eurotransplant-cohort-study
#7
L Heylen, I Jochmans, U Samuel, I Tieken, M Naesens, J Pirenne, B Sprangers
Circulatory death donor (DCD) kidney transplantations are steadily increasing. Consensus reports recommend to limit donor warm ischemia time (DWIT) in DCD donation, although an independent effect on graft outcome has not been demonstrated. We investigated death-censored graft survival in 18,065 recipients of deceased-donor kidney transplants in the Eurotransplant region: 1,059 DCD and 17,006 brain-dead donor (DBD) kidney recipients. DWIT was defined as time from circulatory arrest until cold flush. DCD donation was an independent risk factor for graft failure (adjusted HR 1...
October 5, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28975890/identification-and-validation-of-novel-prognostic-markers-in-renal-cell-carcinoma
#8
Maj Rabjerg
Kidney cancer (Renal Cell Carcinoma (RCC)) is one of the most deadly malignancies due to frequent late diagnosis and poor treatment options. Histologically, RCC embraces a wide variety of different subtypes with the clear cell variant (ccRCC) being the most common, accounting for 75-90% of all RCCs. At present, the surveillance protocols for follow-up of RCC patients after radical nephrectomy are based on the American Joint Committee on Cancers (AJCC) pathological tumor-node-metastasis (TNM) classification system...
October 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28968325/clinical-application-of-acellular-dermal-matrix-in-the-treatment-of-aplasia-cutis-congenita-on-scalp
#9
Eun Soo Park, Jun Ho Park, Ho Seong Shin, Seung Min Nam
Aplasia cutis congenita (ACC), also called cutis aplasia, is a rare congenital abnormality characterized by focal defect of the skin at birth, frequently involving the scalp, but may affect any region of the body. Approximately 80% of patients have the defect confined to the skin and generally less than 2 cm diameter, which can be managed conservatively with dressing alone. However, some patients present large cutaneous defects and aplasia of the underlying skull may also be present. The main complications of large defects include meningeal infection, bleeding, and thrombosis, which may be deadly...
September 29, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28965490/study-roadmap-for-high-throughput-development-of-easy-to-use-and-affordable-biomarkers-as-diagnostics-for-tropical-diseases-a-focus-on-malaria-and-schistosomiasis
#10
Kokouvi Kassegne, Ting Zhang, Shen-Bo Chen, Bin Xu, Zhi-Sheng Dang, Wang-Ping Deng, Eniola Michael Abe, Hai-Mo Shen, Wei Hu, Takele Geressu Guyo, Solomon Nwaka, Jun-Hu Chen, Xiao-Nong Zhou
BACKGROUND: Interventions are currently being used against 'infectious diseases of poverty', which remain highly debilitating and deadly in most endemic countries, especially malaria, schistosomiasis, echinococcosis and African sleeping sickness. However, major limitations of current 'traditional' methods for diagnosis are neither simple nor convenient for population surveillance, and showed low sensitivity and specificity. Access to novel technologies for the development of adequate and reliable tools are expressly needed...
October 2, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28964860/fish-ddx3x-exerts-antiviral-function-against-grouper-nervous-necrosis-virus-infection
#11
Jiaxin Liu, Xiaohong Huang, Yepin Yu, Jingcheng Zhang, Songwei Ni, Yin Hu, Youhua Huang, Qiwei Qin
Human DEAD box ATP-dependent RNA helicase DDX3X has been demonstrated to exert crucial functions in carcinogenesis and antiviral immune response. However, to our knowledge, few information focused on the functions of fish DDX3X. In this study, we cloned and characterized a DDX3X homolog from orange spotted grouper (Epinephelus coioides) (EcDDX3X). EcDDX3X encoded a 733-amino acid protein which shared 97% and 76% identity to spiny damselfish (Acanthochromis polyacanthus) and human (Homo sapiens), respectively...
September 28, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28960350/antimicrobial-effectiveness-of-oxidant-and-chelating-agents-combination-in-infected-dentine-an-ex-vivo-confocal-laser-scanning-microscopy-study
#12
L Giardino, M Del Fabbro, F Cesario, F S Fernandes, F B Andrade
AIM: To evaluate the intratubular antimicrobial activity of several oxidant and chelating agents associated or not with surfactants in experimentally infected root canals, using confocal laser scanning microscopy. METHODOLOGY: Twenty-four dentine blocks from bovine incisors were contaminated for five days with Enterococcus faecalis (ATCC- 29212). Ten contaminated dentine specimens were irrigated for 5 min with 5.25% NaOCl followed by 17% EDTA for 2 min, and the other 10 with Hypoclean for 5 min followed by Tetraclean NA for 2 min...
September 27, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28949320/-bunanje-xx-century-abuse-of-atropa-belladonna-halucinogenic-berries-in-continental-croatia
#13
Zdravko Lacković
BACKGROUND: Atropa belladonna (Engl. deadly nightshade, Cro. velebilje, bunika) is a plant containing pharmacologically active, potentially toxic alkaloids: atropine, hyocyamine and scopolamine. The risk of poisoning in children is important because of possible confusion of black/dark blue belladonna fruit berries with other edible berries. There are many reports in literature of accidental intoxication but no report on traditional intentional usage to achieve hallucinogenic effects. SUBJECTS AND METHODS: Here we report purposeful ingestion of Atropa belladonna berries for hallucinatory effects among adolescents in Bjelovar region in north part of Croatia...
September 2017: Psychiatria Danubina
https://www.readbyqxmd.com/read/28947335/epidemiology-and-molecular-characterization-of-protoparvoviruses-infecting-wild-raccoons-procyon-lotor-in-british-columbia-canada
#14
Marta Canuti, Ann P Britton, Stephanie M Graham, Andrew S Lang
Feline panleukopenia virus (FPV) and canine parvovirus 2 (CPV-2) belong to the species Carnivore protoparvovirus 1. While FPV has been endemic in cats for many years, CPV-2 emerged at the end of the 1970s and 3 antigenic variants (CPV-2a, b and c) are currently circulating in domestic and wild animals. Although raccoons played a fundamental role in the emergence of CPV-2a in dogs, knowledge about protoparvoviruses in these animals is still limited. We investigated 72 raccoons found dead or injured in southern British Columbia (BC), Canada, between 2009 and 2017...
September 22, 2017: Virus Research
https://www.readbyqxmd.com/read/28935246/knowledge-and-practices-related-to-plague-in-an-endemic-area-of-uganda
#15
Kiersten J Kugeler, Titus Apangu, Joseph D Forrester, Kevin S Griffith, Gordian Candini, Janet Abaru, Jimmy F Okoth, Harriet Apio, Geoffrey Ezama, Robert Okello, Meghan Brett, Paul Mead
BACKGROUND: Plague is a virulent zoonosis reported most commonly from Sub-Saharan Africa. Early treatment with antibiotics is important to prevent mortality. Understanding knowledge gaps and common behaviors informs the development of educational efforts to reduce plague mortality. METHODS: A multi-stage cluster-sampled survey of 420 households was conducted in the plague-endemic West Nile region of Uganda to assess knowledge of symptoms and causes of plague and health care-seeking practices...
September 19, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28930081/exposure-of-harbour-seals-phoca-vitulina-to-brucella-in-declining-populations-across-scotland
#16
Joanna L Kershaw, Emma J Stubberfield, Geoffrey Foster, Andrew Brownlow, Ailsa J Hall, Lorraine L Perrett
Since 2000 there has been a major decline in the abundance of Scottish harbour seals Phoca vitulina. The causes of the decline remain uncertain. The aim of this study was to establish the extent to which the seals in the regions of greatest decline have been exposed to Brucella, a bacterial pathogen that causes reproductive failure in terrestrial mammalian hosts. Tissues from dead seals collected between 1992 and 2013 were cultured for Brucella (n = 150). Serum samples collected from live capture-released seals (n = 343) between 1997 and 2012 were tested for Brucella antibodies using the Rose Bengal plate agglutination test (RBT) and a competitive enzyme-linked immunosorbent assay (cELISA)...
September 20, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28924213/an-alternate-mode-of-oligomerization-for-e-coli-seca
#17
Aliakbar Khalili Yazdi, Grant C Vezina, Brian H Shilton
SecA is the ATPase of preprotein translocase. SecA is a dimer in solution and changes in its oligomeric state may function in preprotein translocation. The SecA-N68 construct, in which the C-terminal helical domains of SecA are deleted, was used to investigate the mechanism of SecA oligomerization. SecA-N68 is in equilibrium between monomers, dimers, and tetramers. Subunit interactions in the SecA-N68 tetramer are mediated entirely by unstructured regions at its N- and C-termini: when the termini are deleted to yield SecA-N68∆NC, the construct is completely monomeric...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28900024/metabolic-roles-of-uncultivated-bacterioplankton-lineages-in-the-northern-gulf-of-mexico-dead-zone
#18
J Cameron Thrash, Kiley W Seitz, Brett J Baker, Ben Temperton, Lauren E Gillies, Nancy N Rabalais, Bernard Henrissat, Olivia U Mason
Marine regions that have seasonal to long-term low dissolved oxygen (DO) concentrations, sometimes called "dead zones," are increasing in number and severity around the globe with deleterious effects on ecology and economics. One of the largest of these coastal dead zones occurs on the continental shelf of the northern Gulf of Mexico (nGOM), which results from eutrophication-enhanced bacterioplankton respiration and strong seasonal stratification. Previous research in this dead zone revealed the presence of multiple cosmopolitan bacterioplankton lineages that have eluded cultivation, and thus their metabolic roles in this ecosystem remain unknown...
September 12, 2017: MBio
https://www.readbyqxmd.com/read/28893981/u-th-dating-reveals-regional-scale-decline-of-branching-acropora-corals-on-the-great-barrier-reef-over-the-past-century
#19
Tara R Clark, George Roff, Jian-Xin Zhao, Yue-Xing Feng, Terence J Done, Laurence J McCook, John M Pandolfi
Hard coral cover on the Great Barrier Reef (GBR) is on a trajectory of decline. However, little is known about past coral mortality before the advent of long-term monitoring (circa 1980s). Using paleoecological analysis and high-precision uranium-thorium (U-Th) dating, we reveal an extensive loss of branching Acropora corals and changes in coral community structure in the Palm Islands region of the central GBR over the past century. In 2008, dead coral assemblages were dominated by large, branching Acropora and living coral assemblages by genera typically found in turbid inshore environments...
September 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28892929/connective-tissue-growth-factor-transgenic-mouse-develops-cardiac-hypertrophy-lean-body-mass-and-alopecia
#20
Edem Nuglozeh
INTRODUCTION: Connective Tissue Growth Factor (CTGF/CCN2) is one of the six members of cysteine-rich, heparin-binding proteins, secreted as modular protein and recognised to play a major function in cell processes such as adhesion, migration, proliferation and differentiation as well as chondrogenesis, skeletogenesis, angiogenesis and wound healing. The capacity of CTGF to interact with different growth factors lends an important role during early and late development, especially in the anterior region of the embryo...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
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