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Fluid responsiveness

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https://www.readbyqxmd.com/read/29792343/plasma-initiated-graft-polymerization-as-an-immobilization-platform-for-metal-free-russian-propolis-ethanol-extracts-designed-specifically-for-biomaterials
#1
Ashwin Ambi, Carolina Vera, Nisharg Parikh, Naidel Perez, Anthony Lopez Rojas, Sanket Kumar, Christopher Stradford, Katherine Borbon, Julia Bryan, Christian Traba
The antibacterial and anti-biofilm activities of propolis have been intensively reported. However, the application of this folk remedy as a means to prevent biomedical implant contamination has yet to be completely evaluated. In response to the significant resistant and infectious attributes of biofilms, biomaterials engineered to possess specific chemical and physical properties were immobilized with metal free Russian propolis ethanol extracts (MFRPEE), a known antibacterial agent. The results obtained from this study begin to examine the application of MFRPEE as a novel alternative method for the prevention of medical and biomedical implant infections...
May 24, 2018: Biofouling
https://www.readbyqxmd.com/read/29792195/histamine-activates-inflammatory-response-and-depresses-casein-synthesis-in-mammary-gland-of-dairy-cows-during-sara
#2
Guangjun Chang, Lailai Wang, Nana Ma, Wenwen Zhang, Huanmin Zhang, Hongyu Dai, Xiangzhen Shen
BACKGROUND: Mounting evidences observed that subacute ruminal acidosis (SARA) induced by high concentration (HC) diet increases the translocation of histamine from digestive tract into circulation causing a diverse of diseases in dairy cows. However, it is largely unknown how it does affect the function of mammary gland and milk quality. Hence, this study aims to observe the effects of histamine derived from the digestive tract on the inflammatory response and casein synthesis in the mammary glands during SARA...
May 23, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29792032/a-tict-based-turn-on-fluorogenic-nano-probe-for-realtime-detection-of-serum-albumin-in-physiological-condition
#3
Soham Samanta, Senjuti Halder, Gopal Das
Two, cyanine based fluorescent probes L [(E)-2-(4-(diethylamino)-2-hydroxystyryl)-3-ethyl-1,1-dimethyl-1H-benzo[e]indol-3-ium iodide] and L1 [(E)-3-ethyl-1,1-dimethyl-2-(4-nitrostyryl)-1H-benzo[e]indol-3-ium iodide] have been designed and synthesized. Among these two probes; TICT (twisted intramolecular charge transfer) based probe L can preferentially self-assemble to form nanoaggregates. L displayed a selective TURN-ON fluorescence response towards HSA and BSA in ~100% aqueous PBS buffer medium which is noticeable through naked eye whereas L1 failed to sense these albumin proteins...
May 24, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29792031/the-composition-in-the-interface-between-clay-mineral-surfaces-and-divalent-cation-electrolytes
#4
Stanislav Jelavić, A Rath Nielsen, S L S Stipp, N Bovet
The interfacial free energy of a solid, which determines its adsorption properties, depends on interactions between the surface and the fluid. A change in surface composition can completely change the behaviour of the solid. Decades of work have explored adsorption and its effects at solid-fluid interfaces from the macroscopic perspective and using molecular modelling so the concept of the electric double layer (EDL) is well established in the community. However, direct, molecular level, experimental observations of the composition within the interface region, and its change with time and conditions, is not abundant...
May 23, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29791899/national-practice-patterns-for-prenatal-monitoring-in-gastroschisis-gastroschisis-outcomes-of-delivery-good-provider-survey
#5
Ruchi Amin, Aaron Domack, Joseph Bartoletti, Erika Peterson, Britton Rink, Jennifer Bruggink, Melissa Christensen, Anthony Johnson, William Polzin, Amy J Wagner
BACKGROUND: Gastroschisis is an abdominal wall defect with increasing incidence. Given the lack of surveillance guidelines among maternal-fetal medicine (MFM) specialists, this study describes current practices in gastroschisis management. MATERIALS AND METHODS: An online survey was administered to MFM specialists from institutions affiliated with the North American Fetal Therapy Network (NAFTNet). Questions focused on surveillance timing, testing, findings that changed clinical management, and delivery plan...
May 23, 2018: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/29791836/trpv4-mediates-hypotonic-inhibition-of-central-osmosensory-neurons-via-taurine-gliotransmission
#6
Sorana Ciura, Masha Prager-Khoutorsky, Zahra S Thirouin, Joshua C Wyrosdic, James E Olson, Wolfgang Liedtke, Charles W Bourque
The maintenance of hydromineral homeostasis requires bidirectional detection of changes in extracellular fluid osmolality by primary osmosensory neurons (ONs) in the organum vasculosum laminae terminalis (OVLT). Hypertonicity excites ONs in part through the mechanical activation of a variant transient receptor potential vanilloid-1 channel (dn-Trpv1). However, the mechanism by which local hypotonicity inhibits ONs in the OVLT remains unknown. Here, we show that hypotonicity can reduce the basal activity of dn-Trpv1 channels and hyperpolarize acutely isolated ONs...
May 22, 2018: Cell Reports
https://www.readbyqxmd.com/read/29790849/-n-methyl-d-aspartate-receptor-antibody-encephalitis-the-janus-faced-disorder
#7
Ildiko Sipos
The recognition of the antibody-mediated encephalitis as a separate entity among the immune disorders of the central nervous system was one of the greatest breakthroughs of the last two decades in neurology. Unlike viral or tumor-related encephalitis, the antibody-mediated form has a good response to immunotherapy, which gives a special clinical importance to the discovery. Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is one of the first fully characterized antibody-mediated encephalitises. This article attempts to summarize the clinical features of this complex neuropsychiatric disorder with the aim to help its early recognition and to report the clinical course and the outcome of our six seropositive anti-NMDAR cases...
March 2018: Neuropsychopharmacologia Hungarica
https://www.readbyqxmd.com/read/29790841/guidelines-for-the-management-of-paediatric-cholera-infection-a-systematic-review-of-the-evidence
#8
Phoebe C M Williams, James A Berkley
Background Vibrio cholerae is a highly motile Gram-negative bacterium which is responsible for 3 million cases of diarrhoeal illness and up to 100,000 deaths per year, with an increasing burden documented over the past decade. Current WHO guidelines for the treatment of paediatric cholera infection (tetracycline 12.5 mg/kg four times daily for 3 days) are based on data which are over a decade old. In an era of increasing antimicrobial resistance, updated review of the appropriate empirical therapy for cholera infection in children (taking account of susceptibility patterns, cost and the risk of adverse events) is necessary...
November 2018: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/29790490/a-multi-walled-carbon-nanotube-based-magnetic-molecularly-imprinted-polymer-as-a-highly-selective-sorbent-for-ultrasonic-assisted-dispersive-solid-phase-microextraction-of-sotalol-in-biological-fluids
#9
Saeedeh Ansari, Saeed Masoum
A modified multiwalled carbon nanotube-based magnetic molecularly imprinted polymer (MWCNT-MMIP) was synthesized and applied for selective extraction and preconcentration of sotalol (SOT) in biological fluid samples by using ultrasonic-assisted dispersive solid-phase microextraction (UA-DSPME). The synthetic particles were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) analysis, vibrating sample magnetometry (VSM) and Fourier transform infrared spectroscopy (FTIR)...
May 23, 2018: Analyst
https://www.readbyqxmd.com/read/29790398/acute-inflammatory-biomarker-responses-to-diffuse-traumatic-brain-injury-in-the-rat-monitored-by-a-novel-microdialysis-technique
#10
Fredrik Clausen, Niklas Marklund, Lars Hillered
Neuroinflammation is a major contributor to the progressive brain injury process induced by traumatic brain injury (TBI), and may play an important role in the pathophysiology of axonal injury. The immediate neuroinflammatory cascade cannot be characterized in the human setting. Therefore, we used the midline fluid percussion injury model of diffuse TBI in rats and a novel microdialysis (MD) method providing stable diffusion-driven biomarker sampling. Immediately post-injury, bilateral amphiphilic tri-block polymer coated MD probes (100 kDa cut off membrane) were inserted and perfused with Dextran 500 kDa-supplemented artificial CSF to optimize protein capture...
May 23, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29790305/lyme-disease-associated-igg4-autoantibodies-correlate-with-synovial-pathology-in-antibiotic-refractory-lyme-arthritis
#11
Katherine B Sulka, Klemen Strle, Jameson T Crowley, Robert B Lochhead, Robert Anthony, Allen C Steere
OBJECTIVE: To determine whether IgG subclasses of B. burgdorferi antibodies differ from those of 3 Lyme disease (LD)-associated autoantibodies. METHODS: The IgG antibody subclasses were determined by ELISA in serum samples from 215 patients representative of each of the 3 stages of Lyme disease. Antibody and cytokine profiles were measured in matched serum and synovial fluid (SF) samples from Lyme arthritis patients. Synovial tissue from patients with antibiotic-refractory arthritis was examined for histologic features, IgG subclasses of plasma cells, and mRNA subclass expression...
May 23, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29789941/new-variants-of-porcine-epidemic-diarrhea-virus-with-large-deletions-in-the-spike-protein-identified-in-the-united-states-2016-2017
#12
Yunfang Su, Yixuan Hou, Melanie Prarat, Yan Zhang, Qiuhong Wang
Four types of porcine epidemic diarrhea virus (PEDV) variants with a large deletion in the spike protein were detected, together with the original US PEDV, from pig fecal and oral fluid samples collected during 2016-2017 in the US. Two of the variants are similar to those identified in Japan: one contains a 194-aa deletion, the same as PEDV variant TTR-2/JPN/2014, while the other contains a 204-aa deletion, the same as PEDV variant JKa-292/CS1de204. Two new S1 NTD-del PEDV variants were found: one contains a 201-aa deletion located at residues 30-230 and the other contains a 202-aa deletion located at residues 24-225 of the S protein...
May 22, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29789877/-meta-analyses-on-measurement-precision-of-non-invasive-hemodynamic-monitoring-technologies-in-adults
#13
G Pestel, K Fukui, M Higashi, I Schmidtmann, C Werner
An ideal non-invasive monitoring system should provide accurate and reproducible measurements of clinically relevant variables that enables clinicians to guide therapy accordingly. The monitor should be rapid, easy to use, readily available at the bedside, operator-independent, cost-effective and should have a minimal risk and side effect profile for patients. An example is the introduction of pulse oximetry, which has become established for non-invasive monitoring of oxygenation worldwide. A corresponding non-invasive monitoring of hemodynamics and perfusion could optimize the anesthesiological treatment to the needs in individual cases...
May 22, 2018: Der Anaesthesist
https://www.readbyqxmd.com/read/29788919/prediction-of-fluid-responsiveness-in-mechanically-ventilated-cardiac-surgical-patients-the-performance-of-seven-different-functional-hemodynamic-parameters
#14
Michael T Ganter, Martin Geisen, Sonja Hartnack, Omer Dzemali, Christoph K Hofer
BACKGROUND: Functional hemodynamic parameters such as stroke volume and pulse pressure variation (SVV and PPV) have been shown to be reliable predictors of fluid responsiveness in mechanically ventilated patients. Today, different minimally- and non-invasive hemodynamic monitoring systems measure functional hemodynamic parameters. Although some of these parameters are described by the same name, they differ in their measurement technique and thus may provide different results. We aimed to test the performance of seven functional hemodynamic parameters simultaneously in the same clinical setting...
May 22, 2018: BMC Anesthesiology
https://www.readbyqxmd.com/read/29788790/eeg-differences-in-two-clinically-similar-rapid-dementias-voltage-gated-potassium-channel-complex-associated-autoimmune-encephalitis-and-creutzfeldt-jakob-disease
#15
Brin Freund, John C Probasco, Mackenzie C Cervenka, Raoul Sutter, Peter W Kaplan
Distinguishing treatable causes for rapidly progressive dementia from those that are incurable is vital. Creutzfeldt-Jakob disease (CJD) and voltage-gated potassium channel complex-associated autoimmune encephalitis (VGKC AE) are 2 such conditions with disparate outcomes and response to treatment. To determine the differences in electroencephalography between CJD and VGKC AE, we performed a retrospective review of medical records and examined clinical data, neuroimaging, and electroencephalographs performed in patients admitted for evaluation for rapidly progressive dementia diagnosed with CJD and VGKC AE at the Johns Hopkins Hospital and Bayview Medical Center between January 1, 2007 and December 31, 2015...
May 1, 2018: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/29788723/biomineralization-of-osteoblasts-on-dlc-coated-surfaces-for-bone-implants
#16
Subramanian B, Thanka Rajan S, P J Martin, Vijay Vaithilingam, Penelope A Bean, Margaret D M Evans, A Bendavid
Diamond like carbon (DLC) films were deposited onto Ti6Al4V and Si wafer substrates by RF plasma enhanced chemical vapor deposition. The influence of dopants such as fluorine (F), silicon (Si), and nitrogen (N) on composition, structure, and biocompatibility was investigated. Ion scattering spectroscopy analysis revealed the presence of dopant atoms in the outer-most layers of the films. Raman studies showed that the position of the G-band shifts to higher frequencies with the fluorine and nitrogen content in the DLC film, whereas the incorporation of Si into DLC induces a decrease of the position of the G peak...
May 22, 2018: Biointerphases
https://www.readbyqxmd.com/read/29788457/the-reliability-of-the-clinical-examination-in-predicting-hemodynamic-status-in-acute-febrile-illness-in-a-tropical-resource-limited-setting
#17
Felix Moek, Poe Poe, Prakaykaew Charunwatthana, Wirichada Pan-Ngum, Yupaporn Wattanagoon, Wirongrong Chierakul
Introduction: The clinical examination alone is widely considered unreliable when assessing fluid responsiveness in critically ill patients. Little evidence exists on the performance of the clinical examination to predict other hemodynamic derangements or more complex hemodynamic states. Materials and methods: Patients with acute febrile illness were assessed on admission, both clinically and per non-invasive hemodynamic measurement. Correlations between clinical signs and hemodynamics patterns were analyzed, and the predictive capacity of the clinical signs was examined...
May 19, 2018: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29788135/the-hepatic-glucocorticoid-receptor-is-crucial-for-cortisol-homeostasis-and-sepsis-survival-in-humans-and-male-mice
#18
Marc Jenniskens, Ruben Weckx, Thomas Dufour, Sarah Vander Perre, Lies Pauwels, Sarah Derde, Arno Téblick, Fabian Güiza, Greet Van den Berghe, Lies Langouche
Sepsis is hallmarked by hypercortisolemia, a stress response that is essential for survival. This elevation in plasma cortisol is partially brought about by suppressed hepatic cortisol breakdown. We now demonstrated that a controlled downregulation of the hepatic glucocorticoid receptor (hepatic GR) is crucial herein. In a mouse model of fluid-resuscitated, antibiotic-treated abdominal sepsis and in human ICU patients, sepsis reduced hepatic GR expression and signaling, but increased (free) plasma cortisol/corticosterone, explained by suppressed cortisol/corticosterone binding proteins and A-ring-reductases...
May 17, 2018: Endocrinology
https://www.readbyqxmd.com/read/29787412/does-respiratory-variation-in-inferior-vena-cava-diameter-predict-fluid-responsiveness-in-mechanically-ventilated-patients-a-systematic-review-and-meta-analysis
#19
Xiang Si, Hailin Xu, Zimeng Liu, Jianfeng Wu, Daiyin Cao, Juan Chen, Minying Chen, Yongjun Liu, Xiangdong Guan
BACKGROUND: We performed a systematic review and meta-analysis of studies investigating the diagnostic accuracy of respiratory variation in inferior vena cava diameter (ΔIVC) for predicting fluid responsiveness in patients receiving mechanical ventilation. METHODS: MEDLINE, EMBASE, the Cochrane Library, and Web of Science were screened from inception to February 2017. The meta-analysis assessed the pooled sensitivity, specificity, diagnostic odds ratio, and area under the receiver operating characteristic curve...
May 21, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29785570/phase-1b-investigation-of-the-mek-inhibitor-binimetinib-in-patients-with-advanced-or-metastatic-biliary-tract-cancer
#20
R S Finn, D H Ahn, M M Javle, B R Tan, C D Weekes, J C Bendell, A Patnaik, G N Khan, D Laheru, R Chavira, J Christy-Bittel, E Barrett, M B Sawyer, Tanios S Bekaii-Saab
Background The MAPK pathway plays a central role in regulation of several cellular processes, and its dysregulation is a hallmark of biliary tract cancer (BTC). Binimetinib (MEK162), a potent, selective oral MEK1/2 inhibitor, was assessed in patients with advanced BTC. Patients and Methods An expansion cohort study in patients who received ≤1 line of therapy for advanced BTC was conducted after determination of the maximum tolerated dose in this Phase 1 trial. Patients received binimetinib 60 mg twice daily...
May 22, 2018: Investigational New Drugs
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