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https://www.readbyqxmd.com/read/29355804/continuous-lumbar-cistern-drainage-before-surgical-clipping-for-aneurysmal-subarachnoid-hemorrhage
#1
Ning Xu, Hao Meng, Tianyi Liu, Yingli Feng, Yuan Qi, Honglei Wang
BACKGROUND: Lumbar drainage (LD) is the choice for the treatment of acute hydrocephalus and increased intracranial pressure in patients with subarachnoid hemorrhage (SAH). It also reduces vasospasm risk and delayed ischemic neurological events. We evaluated the role of LD in the preoperative management of patients with aneurysmal SAH (aSAH). PATIENTS AND METHODS: From January 2011 to January 2013, 520 patients with aSAH were subjected to clipping surgery and were prospectively enrolled in this study...
January 17, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29355383/changes-of-cortical-perfusion-in-the-early-phase-of-subarachnoid-bleeding-in-a-rat-model-and-the-role-of-intracranial-hypertension
#2
M Kolar, K Nohejlova, F Duska, J Mares, J Pachl
Brain perfusion is reduced early after subarachnoid hemorrhage (SAH) due to intracranial hypertension and early vasospasm. The contribution of these two mechanisms is unknown. By performing a prophylactic decompressive craniectomy (DC) in a rat model of SAH we aimed to study brain perfusion after the component of intracranial hypertension has been eliminated. We used 2x2 factorial design, where rats received either decompressive craniectomy or sham operation followed by injection of 250 microl of blood or normal saline into prechiasmatic cistern...
December 30, 2017: Physiological Research
https://www.readbyqxmd.com/read/29355378/methylprednisolone-modulates-intracranial-pressure-in-the-brain-cellular-edema-induced-by-water-intoxication
#3
P Kozler, D Marešová, J Pokorný
Continuous monitoring of the intracranial pressure (ICP) detects impending intracranial hypertension resulting from the impaired intracranial volume homeostasis, when expanding volume generates pressure increase. In this study, cellular brain edema (CE) was induced in rats by water intoxication (WI). Methylprednisolone (MP) was administered intraperitoneally (i.p.) before the start of CE induction, during the induction and after the induction. ICP was monitored for 60 min within 20 h after the completion of the CE induction by fibreoptic pressure transmitter...
December 30, 2017: Physiological Research
https://www.readbyqxmd.com/read/29354949/-tie-s-flying-acupuncture-for-acute-cerebral-infarction-hemiplegia-a-randomized-controlled-trial
#4
Haibo Chu, Shuangyong Zhang, Junli Fu, Huali Dong, Rui Guo, Gaofeng Zhao, Quanrong Lian, Zhen Feng, Baolin Yang
OBJECTIVE: To compare the efficacy difference between TIE 's flying acupuncture combined with conventional treatment and conventional treatment alone on acute cerebral infarction hemiplegia. METHODS: A total of 120 patients were randomly divided into an observation group and a control group, 60 cases in each one. The control group was treated with conventional treatment, including anti-platelet aggregation, lipid-lowering, formula of traditional Chinese medicine which could promote circulation and remove stasis, neurotrophic medication and symptomatic treatment; mannitol was used for cerebral infarction with large area or increased intracranial pressure...
November 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29354685/inflammatory-gene-expression-signatures-in-idiopathic-intracranial-hypertension-possible-implications-in-microgravity-induced-icp-elevation
#5
Susana B Zanello, Vasisht Tadigotla, James Hurley, Johan Skog, Brian Stevens, Eusebia Calvillo, Eric Bershad
The visual impairment and intracranial pressure (VIIP) syndrome is a neuro-ophthalmologic condition described in astronauts returning from long duration space missions. Idiopathic intracranial hypertension (IIH), also known as pseudotumor cerebri, is characterized by a chronic elevation of intracranial pressure (ICP) in the absence of an intracranial mass lesion. Because VIIP and IIH share some neurologic and ophthalmologic manifestations, the latter might be used as a model to study some of the processes underlying VIIP...
2018: NPJ Microgravity
https://www.readbyqxmd.com/read/29354210/aggressive-blood-pressure-treatment-of-hypertensive-intracerebral-hemorrhage-may-lead-to-global-cerebral-hypoperfusion-case-report-and-imaging-perspective
#6
Jose Gavito-Higuera, Rakesh Khatri, Ihtesham A Qureshi, Alberto Maud, Gustavo J Rodriguez
Hypoperfusion injury related to blood pressure decrease in acute hypertensive intracerebral hemorrhage continues to be a controversial topic. Aggressive treatment is provided with the intent to stop the ongoing bleeding. However, there may be additional factors, including autoregulation and increased intracranial pressure, that may limit this approach. We present here a case of acute hypertensive intracerebral hemorrhage, in which aggressive blood pressure management to levels within the normal range led to global cerebral ischemia within multiple border zones...
December 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/29352662/distinct-progression-patterns-of-brain-disease-in-infantile-and-juvenile-gangliosidoses-volumetric-quantitative-mri-study
#7
Igor Nestrasil, Alia Ahmed, Josephine M Utz, Kyle Rudser, Chester B Whitley, Jeanine R Jarnes-Utz
BACKGROUND: GM1-gangliosidosis and GM2-gangliosidosis (Tay-Sachs disease and Sandhoff disease) are unrelenting heritable neurodegenerative conditions of lysosomal ganglioside accumulation. Although progressive brain atrophy is characteristic, longitudinal quantification of specific brain structures has not been systematically studied. OBJECTIVES: The goal of this longitudinal study has been to quantify and track brain MRI volume changes, including specific structure volume changes, at different times in disease progression of childhood gangliosidoses, and to explore quantitative brain MRI volumetry (qMRI) as a non-invasive marker of disease progression for future treatment trials...
December 20, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29348076/association-between-serum-arsenic-levels-and-gestational-diabetes-mellitus-a-population-based-birth-cohort-study
#8
Xun Xia, Chunmei Liang, Jie Sheng, Shuangqin Yan, Kun Huang, Zhijuan Li, Weijun Pan, Ruiwen Tao, Jiahu Hao, Beibei Zhu, Shilu Tong, Fangbiao Tao
Gestational diabetes mellitus (GDM) is a common obstetric complication with adverse effects on both mothers and their children. Previous studies revealed the link between Arsenic (As) exposure and incidence of diabetes mellitus (DM), but the data on the association between maternal As exposure and GDM is scarce. We examined this association among a population-based birth cohort. As concentrations were determined at multiple time points during pregnancy by ICP-MS. The association between As levels and GDM prevalence was examined using logistic regression model after adjustment for confounders...
January 15, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29348058/elemental-assessment-of-vegetation-via-portable-x-ray-fluorescence-pxrf-spectrometry
#9
Candice McGladdery, David C Weindorf, Somsubhra Chakraborty, Bin Li, Laura Paulette, Dorina Podar, Delaina Pearson, Nana Yaw O Kusi, Bogdan Duda
Elemental concentrations in vegetation are of critical importance, whether establishing plant essential element concentrations (toxicity vs. deficiency) or investigating deleterious elements (e.g., heavy metals) differentially extracted from the soil by plants. Traditionally, elemental analysis of vegetation has been facilitated by acid digestion followed by quantification via inductively coupled plasma (ICP) or atomic absorption (AA) spectroscopy. Previous studies have utilized portable X-ray fluorescence (PXRF) spectroscopy to quantify elements in soils, but few have evaluated the vegetation...
January 15, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29339713/neuroprotective-effect-of-selective-antegrade-cerebral-perfusion-during-prolonged-deep-hypothermic-circulatory-arrest-cerebral-metabolism-evidence-in-a-pig-model
#10
Zhixian Tang, Mengya Liang, Guangxian Chen, Jian Rong, Jianping Yao, Zhen Chen, Xiao Yang, Zhongkai Wu
OBJECTIVE: The aim of this study was to elucidate the mechanism of cerebral injury and to evaluate selective antegrade cerebral perfusion (SACP) as a superior neuroprotective strategy for prolonged deep hypothermic circulatory arrest (DHCA). METHODS: Twelve pigs (6-8-week old) were randomly assigned to DHCA alone (n=6) and DHCA with SACP (n=6) at 18°C for 80 min groups. Serum S100 was determined using an immunoassay analyzer. The concentrations of cerebral dialysate glucose, lactate, pyruvate, glycerol, and glutamate were measured using a microdialysis analyzer...
January 2018: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/29335865/beneficial-effect-of-berberis-amurensis-rupr-on-penile-erection
#11
Rui Tan, Yun Jung Lee, Kyung Woo Cho, Dae Gill Kang, Ho Sub Lee
OBJECTIVE: To investigate whether the methanol extract of Berberis amurensis Rupr. (BAR) augments penile erection using in vitro and in vivo experiments. METHODS: The ex vivo study used corpus cavernosum strips prepared from adult male New Zealand White rabbits. In in vivo studies for intracavernous pressure (ICP), blood pressure, mean arterial pressure (MAP), and increase of peak ICP were continuously monitored during electrical stimulation of Sprague-Dawley rats...
January 15, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29332815/single-particle-analysis-of-tio2-in-candy-products-using-triple-quadrupole-icp-ms
#12
S Candás-Zapico, D J Kutscher, M Montes-Bayón, J Bettmer
Titanium dioxide (TiO2) belongs to the materials that have gained great importance in many applications. In its particulate form (micro- or nanoparticles), it has entered a huge number of consumer products and food-grade TiO2, better known as E171 within the European Union, represents an important food additive. Thus, there is an increasing need for analytical methods able to detect and quantify such particles. In this regard, inductively coupled-mass spectrometry (ICP-MS), in particular single particle ICP-MS (spICP-MS), has gained importance due to its simplicity and ease of use...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29326127/skill-sets-required-for-the-management-of-military-head-face-and-neck-trauma-a-multidisciplinary-consensus-statement
#13
John Breeze, R Blanch, J Baden, A M Monaghan, D Evriviades, S E Harrisson, S Roberts, A Gibson, N MacKenzie, D Baxter, A J Gibbons, S Heppell, J G Combes, R F Rickard
INTRODUCTION: The evolution of medical practice is resulting in increasing subspecialisation, with head, face and neck (HFN) trauma in a civilian environment usually managed by a combination of surgical specialties working as a team. However, the full combination of HFN specialties commonly available in the NHS may not be available in future UK military-led operations, necessitating the identification of a group of skill sets that could be delivered by one or more deployed surgeons. METHOD: A systematic review was undertaken to identify those surgical procedures performed to treat acute military head, face, neck and eye trauma...
January 10, 2018: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/29313173/dietary-deoxynivalenol-does-not-affect-mineral-element-accumulation-in-breast-and-thigh-muscles-of-broiler-chicken
#14
Manfred Sager, Annegret Lucke, Khaled Ghareeb, Manoochehr Allymehr, Qendrim Zebeli, Josef Böhm
Deoxynivalenol (DON), a well-known contaminant of feed, can have negative effects on gut permeability and function in poultry, which then could affect major and trace element content of the broilers' breast and thigh muscles, and ultimately reduce meat quality. To study this hypothesis, DON-contaminated diet was fed to broiler chicks. Two groups of birds were housed in metabolic cages with free access to water and feed, with or without DON (10 mg/kg). After 5 weeks, birds were dissected and samples of the breast and thigh muscles, feed and droppings were analysed for five macro (Ca, K, Mg, Na, and P) and ten micro elements (Al, Cr, Cu, Fe, Mn, Li, Mo, Ni, Pb, Rb, and Zn) by inductively coupled plasma optical emission spectrometry (ICP-OES) or inductively coupled plasma mass spectrometer (ICP-MS) methods...
January 8, 2018: Mycotoxin Research
https://www.readbyqxmd.com/read/29310235/determination-of-pb-in-environmental-samples-after-cloud-point-extraction-using-crown-ether
#15
Guillaume Blanchet-Chouinard, Dominic Larivière
In the present study, a new cloud point extraction methodology based on the selective preconcentration and the extraction of stable lead in acidic conditions with 4',4''(5'')-di-tert-butyldicyclohexano-18-crown-6 as a chelating agent was developed, optimized and validated. A mixture of Triton X-114 as non-ionic surfactant and CTAB as cationic surfactant was used to produce micellar structures that incorporate the chelating agent. Phase separation, induced by coacervation, was achieved by increasing the temperature of the system above the cloud point temperature...
March 1, 2018: Talanta
https://www.readbyqxmd.com/read/29306321/relationship-between-the-extent-of-resection-and-the-survival-of-patients-with-low-grade-gliomas-a-systematic-review-and-meta-analysis
#16
Liang Xia, Chenyan Fang, Gao Chen, Caixing Sun
BACKGROUND: Surgical resection is necessary to conduct a pathological biopsy and to achieve a reduction of intracranial pressure in low-grade gliomas patients. This study aimed to determine whether a greater extent of resection would increase the overall 5-year and 10-year survival of patients with low-grade gliomas. METHODS: The studies addressing relationship between the extent of resection and the prognosis of low-grade gliomas updated until March 2017 were systematically searched in two databases (Pubmed and EMBASE)...
January 6, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29305923/junction-opener-protein-increases-nanoparticle-accumulation-in-solid-tumors
#17
Christine E Wang, Roma C Yumul, Jonathan Lin, Yilong Cheng, André Lieber, Suzie H Pun
Carcinomas contain tight junctions that can limit the penetration and therefore therapeutic efficacy of anticancer agents, especially those delivered by nano-carrier systems. The junction opener (JO) protein is a virus-derived protein that can transiently open intercellular junctions in epithelial tumors by cleaving the junction protein desmoglein-2 (DSG2). Co-administration of JO was previously shown to significantly increase the efficacy of various monoclonal antibodies and chemotherapy drugs in murine tumor models by allowing for increased intratumoral penetration of the drugs...
January 3, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29302906/toxic-heavy-metals-in-human-blood-in-relation-to-certain-food-and-environmental-samples-in-kerala-south-india
#18
Anitha Jose, Joseph George Ray
Toxic heavy metals such as arsenic (As), lead (Pb), and mercury (Hg) are systemic toxicants that are hazardous to human health. However, as these elements are increasing in the environment due to fast urbanization, industrialization, and chemicalized agricultural activities, accumulation of the same in human body anywhere in the world is quite interesting to global assessment of environment quality. In this connection, random examination of blood samples of human population in Kerala, South India, was carried out to assess the threat of heavy metal contamination to humans in this part of the globe, especially in relation to the amount of such metals in food and other environmental samples...
January 4, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29290998/detection-of-somatic-variants-and-egfr-mutations-in-cell-free-dna-from-non-small-cell-lung-cancer-patients-by-ultra-deep-sequencing-using-the-ion-ampliseq-cancer-hotspot-panel-and-droplet-digital-polymerase-chain-reaction
#19
Jae Sook Sung, Hyon Yong Chong, Nak-Jung Kwon, Hae Mi Kim, Jong Won Lee, Boyeon Kim, Saet Byeol Lee, Chang Won Park, Jung Yoon Choi, Won Jin Chang, Yoon Ji Choi, Sung Yong Lee, Eun Joo Kang, Kyong Hwa Park, Yeul Hong Kim
Highly sensitive genotyping assays can detect mutations in cell-free DNA (cfDNA) from cancer patients, reflecting the biology of each patient's cancer. Because circulating tumor DNA comprises a small, variable fraction of DNA circulating in the blood, sensitive parallel multiplexing tests are required to determine mutation profiles. We prospectively examined the clinical utility of ultra-deep sequencing analysis of cfDNA from 126 non-small cell lung cancer (NSCLC) patients using the Ion AmpliSeq Cancer Hotspot Panel v2 (ICP) and validated these findings with droplet digital polymerase chain reaction (ddPCR)...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29288810/zinc-delivery-from-non-woven-fibres-within-a-therapeutic-nipple-shield
#20
Theresa Maier, Rebekah L Scheuerle, Daniel Markl, Sylvaine Bruggraber, Axel Zeitler, Ljiljana Fruk, Nigel K H Slater
A Therapeutic Nipple Shield (TNS) was previously developed to respond to the global need for new infant therapeutic delivery technologies. However, the release efficiency for the same Active Pharmaceutical Ingredient (API) from different therapeutic matrices within the TNS formulation has not yet been investigated. To address this, in-vitro release of elemental zinc into human milk from two types of Texel non-woven fibre mats of varying thickness and different gram per square meter values, placed inside the TNS was explored and compared to the release from zinc-containing rapidly disintegrating tablets...
December 27, 2017: International Journal of Pharmaceutics
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