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https://www.readbyqxmd.com/read/28087439/cerebrovascular-heterogeneity-and-neuronal-excitability
#1
REVIEW
Laura Librizzi, Marco de Curtis, Damir Janigro, Leonie Runtz, Frederic deBock, Emmanuel L Barbier, Nicola Marchi
The cerebral vasculature is a complex tridimensional network of arterial and venous vessels which are anatomically in proximity of and functionally coupled to neurons. Depending on the cellular composition of the vascular wall and its anatomical arrangement, cerebral vessels control regional blood flow, define interstitial homeostasis or cerebrospinal fluid circulation and influence immune cell patrolling. Pathological deviations from these functions promote or are a consequence of brain diseases, directly impacting neuronal firing...
January 10, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28080292/effect-of-the-endoclear-%C3%A2-device-on-biofilm-in-endotracheal-tubes
#2
James M Bardes, Dana Gray, Alison Wilson
BACKGROUND: Organisms trapped in biofilms cause more than 80% of medical infections. Significant investments are being made to develop methods of removing these biofilms. The endOclear(®) device is reported to remove biofilm from endotracheal tubes (ETTs) and to decrease pneumonia rates and ventilator time. METHODS: This was an observational study performed at a university Level 1 trauma center intensive care unit. A series of 40 ETTs were collected at extubation, with half of the patients having been treated daily with the endOclear(®) device...
January 12, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28079628/interleukin-6-is-increased-in-plasma-and-cerebrospinal-fluid-of-community-dwelling-domestic-dogs-with-acute-ischaemic-stroke
#3
Hanne Gredal, Barbara B Thomsen, Antonio Boza-Serrano, Laurent Garosi, Clare Rusbridge, Daniel Anthony, Arne Møller, Bente Finsen, Tomas Deierborg, Kate L Lambertsen, Mette Berendt
Inflammatory cytokines are potential modulators of infarct progression in acute ischaemic stroke, and are therefore possible targets for future treatment strategies. Cytokine studies in animal models of surgically induced stroke may, however, be influenced by the fact that the surgical intervention itself contributes towards the cytokine response. Community-dwelling domestic dogs suffer from spontaneous ischaemic stroke, and therefore, offer the opportunity to study the cytokine response in a noninvasive set-up...
January 10, 2017: Neuroreport
https://www.readbyqxmd.com/read/28079399/safety-and-efficacy-of-tissue-plasminogen-activator-tpa-and-deoxyribonuclease-dnase-for-complicated-pleural-effusions-secondary-to-abdominal-pathology
#4
Adnan Majid, Sebastian Ochoa, Sumit Chatterji, Sebastian Fernandez-Bussy, Fayez Kheir, Estefania Rivera, George Cheng, Erik Folch
RATIONALE: Exudative pleural effusions may arise secondary to inflammation of intra-abdominal structures. Pleural space loculations can complicate these effusions, preventing adequate chest tube drainage and leading to consideration of surgical intervention. Previous studies have demonstrated that intrapleural administration of tissue plasminogen activator (tPA) combined with human recombinant deoxyribonuclease (DNase) can improve fluid drainage and reduce surgery for patients with loculated parapneumonic effusions; however, the efficacy of this treatment has not been evaluated for complicated pleural effusions attributed to intraabdominal inflammation...
January 12, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28079160/tempo-of-magma-degassing-and-the-genesis-of-porphyry-copper-deposits
#5
Cyril Chelle-Michou, Bertrand Rottier, Luca Caricchi, Guy Simpson
Porphyry deposits are copper-rich orebodies formed by precipitation of metal sulphides from hydrothermal fluids released from magmatic intrusions that cooled at depth within the Earth's crust. Finding new porphyry deposits is essential because they are our largest source of copper and they also contain other strategic metals including gold and molybdenum. However, the discovery of giant porphyry deposits is hindered by a lack of understanding of the factors governing their size. Here, we use thermal modelling and statistical simulations to quantify the tempo and the chemistry of fluids released from cooling magmatic systems...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28078858/use-of-lactated-ringer%C3%A2-s-solution-does-not-eliminate-the-risk-of-strong-ion-difference-related-metabolic-acidosis-following-on-pump-cardiac-surgery
#6
T Jovaisa, V Vicka, G Linkaitė, J Guseinovaitė, D Ringaitienė, I Norkienė
There is a growing interest in the effects of plasma sodium levels on postoperative outcomes. A trend of using balanced crystalloid solutions is based on the extensive data on chloride and the strong ion difference-related acidosis. However, effects of sodium are often overlooked in this context. The aim of the study was to establish the effects of the routine use of Lactated Ringer’s Solution (RL) on postoperative changes in sodium concentrations and whether these changes result in metabolic acidosis. We performed database analysis of 358 consecutive elective on-pump cardiac surgery cases in a tertiary referral university hospital...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28078682/population-pharmacokinetics-of-intravenous-clonidine-for-sedation-during-pediatric-extracorporeal-membrane-oxygenation-ecmo-and-continuous-veno-venous-hemofiltration-cvvh
#7
Niina Kleiber, Ron A A Mathôt, Maurice J Ahsman, Enno D Wildschut, Dick Tibboel, Saskia N de Wildt
AIMS: Clonidine is used for sedation in the pediatric intensive care unit. Extracorporeal membrane oxygenation (ECMO) provides temporary support if respiratory and cardiac function is threatened. ECMO influences the pharmacokinetics of drugs. Clonidine during pediatric ECMO cannot be effectively titrated as PK data are lacking. The aim of this study is to describe clonidine PK in a particular ECMO system and propose dosing guidelines for children on this particular ECMO circuit. METHODS: All children below the age of 18 who received clonidine during ECMO were eligible...
January 12, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28077530/impact-of-balanced-tetrastarch-raw-material-on-perioperative-blood-loss-a-randomized-double-blind-controlled-trial
#8
A Joosten, R Tircoveanu, S Arend, P Wauthy, P Gottignies, P Van der Linden
BACKGROUND: As 6% hydroxyethyl starch (HES) 130/0.40 or 130/0.42 can originate from different vegetable sources, they might have different clinical effects. The purpose of this prospective, randomized, double-blind controlled trial was to compare two balanced tetrastarch solutions, one maize-derived and one potato-derived, on perioperative blood loss in patients undergoing cardiac surgery with cardiopulmonary bypass (CPB). METHODS: We randomly assigned 118 patients undergoing elective cardiac surgery into two groups, to receive either a maize- or a potato-derived HES solution...
October 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28074320/algorithmic-three-dimensional-analysis-of-tumor-shape-in-mri-improves-prognosis-of-survival-in-glioblastoma-a-multi-institutional-study
#9
Nicholas Czarnek, Kal Clark, Katherine B Peters, Maciej A Mazurowski
In this retrospective, IRB-exempt study, we analyzed data from 68 patients diagnosed with glioblastoma (GBM) in two institutions and investigated the relationship between tumor shape, quantified using algorithmic analysis of magnetic resonance images, and survival. Each patient's Fluid Attenuated Inversion Recovery (FLAIR) abnormality and enhancing tumor were manually delineated, and tumor shape was analyzed by automatic computer algorithms. Five features were automatically extracted from the images to quantify the extent of irregularity in tumor shape in two and three dimensions...
January 10, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28072705/posterior-only-vertebral-column-resection-for-revision-surgery-in-post-laminectomy-rotokyphoscoliosis-associated-with-late-onset-paraplegia-a-case-report-and-literature-review
#10
Youping Tao, Jigong Wu, Huasong Ma
RATIONALE: Severe post-laminectomy spinal deformity associated with late-onset paraplegia is a complex and rare disorder. Little is known about revision surgery in post-laminectomy rotokyphoscoliosis associated with late-onset paraplegia treated by the single stage posterior-only vertebral column resection (VCR) procedure. PATIENT CONCERNS AND DIAGNOSES: The patient was a 14-year-old male diagnosed as post-laminectomy rotokyphoscoliosis associated with late-onset paraplegia...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28070608/xuebijing-injection-treatment-inhibits-vasopermeability-and-reduces-fluid-requirements-in-a-canine-burn-model
#11
F-B Tang, Y-L Dai, S Hu, L-Q Ma, J-Y Li, H-P Zhang, W-H Zhang, Y-G Li, H-B Wang, H-Y Lin, Q Hu, L Li
OBJECTIVE: High vasopermeability and excessive inflammation following severe burns may result in tissue edema, organ dysfunction and the loss of circulatory plasma volume, which can influence the doctor to do the prognosis to the patients. The study aims to examine whether Xuebijing injection (XBJ), an extracts of a traditional Chinese medicine used to treat sepsis in clinic, can reduces fluid requirements by inhibiting vasopermeability and tissue edema in a canine model after burn injury...
January 9, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28069228/cu-sns-sno2-nanoparticles-as-novel-sorbent-for-dispersive-micro-solid-phase-extraction-of-atorvastatin-in-human-plasma-and-urine-samples-by-high-performance-liquid-chromatography-with-uv-detection-application-of-central-composite-design-ccd
#12
Mehdi Dastkhoon, Mehrorang Ghaedi, Arash Asfaram, Maryam Arabi, Abbas Ostovan, Alireza Goudarzi
Separation and detection of residual drug in biological fluids has directly related to human health in term of their beneficial or side effects. In biological fluid samples (complex matrix which containing drug at very low level) conduction of preliminary efficient technique as good choice for pre-concentration and clean-up of real sample before their instrumental analysis is highly recommended. In this result technique, based on nano-structure material which poses higher available surface area and larger member of reactive sites led to significant improvement in characteristic performance of analytical method...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28067724/acute-central-serous-chorioretinopathy-factors-influencing-episode-duration
#13
Alejandra Daruich, Alexandre Matet, Laetitia Marchionno, Jean-Dominique De Azevedo, Aude Ambresin, Irmela Mantel, Francine Behar-Cohen
PURPOSE: To evaluate the influence of clinical and multimodal imaging parameters on the duration of acute central serous chorioretinopathy (CSCR) episodes. METHODS: Consecutive patients with first, treatment-naïve central serous chorioretinopathy episodes presenting within 20 days of symptoms onset were prospectively included. They were reevaluated 15 days to 20 days later, followed by monthly evaluation for 6 months. Subfoveal choroidal thickness (SFCT), fluorescein leakage intensity on fluorescein angiography, elevation of retinal pigment epithelium (RPE) lesions at leakage sites, focal/multifocal pattern of indocyanine green angiography (ICGA) at baseline, time-dependent pattern of subretinal fluid (SRF) resorption on OCT using volume segmentation, history of corticosteroid intake and mean blood pressure were evaluated using univariate (Log rank test) and multivariate (Cox proportional hazard regression) survival analysis...
January 6, 2017: Retina
https://www.readbyqxmd.com/read/28066955/dose-rates-of-antimicrobial-substances-in-boar-semen-preservation-time-to-establish-new-protocols
#14
M Schulze, M Grobbel, A Riesenbeck, S Brüning, J Schaefer, M Jung, R Grossfeld
To achieve a standardized number of spermatozoa in the final AI dose, varying amounts of extender fluid with a fixed concentration of antimicrobial substances are currently added to boar ejaculates. This practice ignores the different degrees of dilution of the antimicrobials in the end product. In calculating the final concentration of gentamicin in AI doses from 27,538 processed boar ejaculates, we demonstrated varying gentamicin concentrations in the resultant extended boar semen samples. The median concentration was 220...
January 9, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28065873/hyperbaric-oxygen-effects-on-depression-like-behavior-and-neuroinflammation-in-traumatic-brain-injury-rats
#15
Sher-Wei Lim, Kuan-Chin Sung, Yow-Ling Shiue, Che-Chuan Wang, Chung-Ching Chio, Jinn-Rung Kuo
OBJECTIVE: The aim of this study was to determine whether hyperbaric oxygen (HBO) therapy causes attenuation of traumatic brain injury (TBI)-induced depression-like behavior and its associated anti-neuroinflammatory effects after fluid percussion injury. METHODS: Anesthetized male Sprague-Dawley rats were divided into three groups: sham operation + NBA (normobaric air: 21% O2 at 1 absolute atmosphere [ATA]), TBI + NBA, and TBI + HBO (100% O2 at 2.0 ATA). HBO was applied immediately for 60 min/day after TBI for 3 days...
January 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28065237/predictors-for-massive-blood-loss-during-posterior-correction-of-congenital-scoliosis-in-pre-school-children-a-retrospective-observation
#16
Le Shen, Wei-Yun Chen, Wu-Tao Wang, Hao-Nan Xu, Xue-Rong Yu, Xiu-Hua Zhang, Yu-Guang Huang
Objective To investigate the predictors for massive blood loss during posterior correction of congenital scoliosis in pre-school children. Methods Totally 124 children under six years of age,who received posterior correction of congenital scoliosis,were divided into two groups according to the ratio of intraoperative blood loss (BL) and estimated blood volume (EBV). Massive blood loss was defined as BL/EBV>0.15,and minor or moderate blood loss as BL/EBV≤0.15. All the records,including demographics,intraoperative fluids,pre- or postoperative laboratory parameters,and the length of hospital stay,were compared between these two groups...
December 20, 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28064162/acute-genetic-ablation-of-pendrin-lowers-blood-pressure-in-mice
#17
Francesco Trepiccione, Christelle Soukaseum, Veronique Baudrie, Yusuke Kumai, Jacques Teulon, Bruno Villoutreix, Nicolas Cornière, Philine Wangemann, Andrew J Griffith, Yoon Byung Choi, Juliette Hadchouel, Regine Chambrey, Dominique Eladari
BACKGROUND: Pendrin, the chloride/bicarbonate exchanger of β-intercalated cells of the renal connecting tubule and the collecting duct, plays a key role in NaCl reabsorption by the distal nephron. Therefore, pendrin may be important for the control of extracellular fluid volume and blood pressure. METHODS: Here, we have used a genetic mouse model in which the expression of pendrin can be switched-on in vivo by the administration of doxycycline. Pendrin can also be rapidly removed when doxycycline administration is discontinued...
January 7, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28063772/white-matter-hyperintensity-associations-with-cerebral-blood-flow-in-elderly-subjects-stratified-by-cerebrovascular-risk
#18
Ahmed A Bahrani, David K Powell, Guoquiang Yu, Eleanor S Johnson, Gregory A Jicha, Charles D Smith
OBJECTIVE: This study aims to add clarity to the relationship between deep and periventricular brain white matter hyperintensities (WMHs), cerebral blood flow (CBF), and cerebrovascular risk in older persons. METHODS: Deep white matter hyperintensity (dWMH) and periventricular white matter hyperintensity (pWMH) and regional gray matter (GM) and white matter (WM) blood flow from arterial spin labeling were quantified from magnetic resonance imaging scans of 26 cognitively normal elderly subjects stratified by cerebrovascular disease (CVD) risk...
January 4, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28063688/crystalloid-fluid-choice-and-clinical-outcomes-in-pediatric-sepsis-a-matched-retrospective-cohort-study
#19
Scott L Weiss, Luke Keele, Fran Balamuth, Neika Vendetti, Rachael Ross, Julie C Fitzgerald, Jeffrey S Gerber
OBJECTIVE: To test the hypothesis that resuscitation with balanced fluids (lactated Ringer [LR]) is associated with improved outcomes compared with normal saline (NS) in pediatric sepsis. STUDY DESIGN: We performed matched analyses using data from 12 529 patients <18 years of age with severe sepsis/septic shock at 382 US hospitals between 2000 and 2013 to compare outcomes with vs without LR as part of initial resuscitation. Patients receiving LR were matched 1:1 to patients receiving only NS (NS group), including separate matches for any (LR-any group) or exclusive (LR-only group) LR use...
January 4, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28063264/preimplantation-3d-ultrasound-current-uses-and-challenges
#20
Sushila Arya, Sanja Kupesic Plavsic
The preimplantation ultrasound (US) refers to targeted imaging of the uterus and adnexa prior to assisted reproductive techniques (ART) to optimize the infertility treatment outcomes. After a thorough evidence based literature review, we propose the use of transvaginal three-dimensional (3D) US during the early follicular phase. A systematic approach for 3D US examination consists of a detailed examination of the uterine shape, size and contour, evaluation of the endometrial thickness, volume, pattern and vascularity, and assessment of the junctional zone regularity, echogenicity and thickness...
January 7, 2017: Journal of Perinatal Medicine
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