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https://www.readbyqxmd.com/read/28528396/penetration-of-vancomycin-into-the-cerebrospinal-fluid-a-systematic-review
#1
REVIEW
Jessica E Beach, Jerrold Perrott, Ricky D Turgeon, Mary H H Ensom
INTRODUCTION: Infectious disease and pharmacokinetic textbooks indicate that vancomycin has poor penetration into the central nervous system due to its hydrophilic nature and high molecular weight. Recent literature suggests that penetration of vancomycin into cerebrospinal fluid (CSF) is higher than previously reported; therefore, we conducted a systematic review to assess the penetration of vancomycin into CSF. METHODS: We searched the MEDLINE, EMBASE, and CENTRAL electronic databases for English-language human studies evaluating serum and CSF concentrations of intravenous vancomycin...
May 20, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28528375/hypothalamic-signaling-in-body-fluid-homeostasis-and-hypertension
#2
REVIEW
Brian J Kinsman, Haley N Nation, Sean D Stocker
PURPOSE OF REVIEW: The central nervous system plays a pivotal role in the regulation of extracellular fluid volume and consequently arterial blood pressure. Key hypothalamic regions sense and integrate neurohumoral signals to subsequently alter intake (thirst and salt appetite) and output (renal excretion via neuroendocrine and autonomic function). Here, we review recent findings that provide new insight into such mechanisms that may represent new therapeutic targets. RECENT FINDINGS: Implementation of cutting edge neuroscience approaches such as opto- and chemogenetics highlight pivotal roles of circumventricular organs to impact body fluid homeostasis...
June 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28528283/poly-vinyl-alcohol-hydroxyapatite-monolithic-in-needle-extraction-mine-device-preparation-and-examination-of-drug-affinity
#3
Monika Pietrzyńska, Michał Czerwiński, Adam Voelkel
Polymer-ceramic materials based on poly(vinyl alcohol) (PVA) and hydroxyapatite were applied as sorption material in Monolithic In-Needle Extraction (MINE) device. The presented device provides new possibilities for the examination of bisphosphonates affinity for bone and will be a helpful tool in evaluation of potential antiresorptive drugs suitability. A ceramic part of monoliths was prepared by incorporation of hydroxyapatite (HA) into the reaction mixture or by using a soaking method (mineralization of HA on the PVA)...
May 17, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28528240/negative-correlation-between-csf-lactate-levels-and-moca-scores-in-male-chinese-subjects
#4
Haijun Wang, Xiaohua Tan, Jinzhong Xu, Hui Li, Meiling Wang, Suling Chen, Xiaoyu Yang, Yanlong Liu, Fan Wang
Lactate is a product of glycolysis by astrocytes and can be generated as a primary metabolic energy source by neurons. Lactate plays multifunctional role in human brain energy metabolism and cognitive function. However, no direct evidence demonstrated the link between lactate and cognition in normal condition. In the present study, concentrations of lactate in cerebrospinal fluid (CSF) and peripheral blood were measured to investigate the association of lactate with cognitive ability, which was assessed by Montreal Cognitive Assessment (MoCA), in 99 male Chinese subjects...
May 12, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28528188/the-impact-of-perioperative-fluid-therapy-on-short-term-outcomes-and-5-year-survival-among-patients-undergoing-colorectal-cancer-surgery%C3%A2-a-prospective-cohort-study-within-an-eras-protocol
#5
D Asklid, J Segelman, C Gedda, F Hjern, K Pekkari, U O Gustafsson
BACKGROUND: Restricted perioperative fluid therapy is one of several interventions in the enhanced recovery after surgery (ERAS) protocol, designed to reduce morbidity and hospital stay after surgery. The impact of this single intervention on short and long term outcome after colorectal surgery is unknown. PATIENTS AND METHODS: This cohort study includes all consecutive patients operated with abdominal resection of colorectal cancer 2002-2007 at Ersta Hospital, Stockholm, Sweden...
May 3, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28528112/microencapsulation-and-characterization-of-liposomal-vesicles-using-a-supercritical-fluid-process-coupled-with-vacuum-driven-cargo-loading
#6
Wen-Chyan Tsai, Syed S H Rizvi
A new technique of liposomal microencapsulation, consisting of supercritical fluid extraction followed by rapid expansion of the supercritical solution and vacuum-driven cargo loading, was successfully developed. It is a continuous flow-through process without usage of any toxic organic solvent. For use as a coating material, the solubility of soy phospholipids in supercritical carbon dioxide was first determined using a dynamic equilibrium system and the data was correlated with the Chrastil model with good agreement...
June 2017: Food Research International
https://www.readbyqxmd.com/read/28528021/multicystic-peritoneal-mesothelioma-a-short-review
#7
Chi-Hao Zhang, Ji-Wei Yu, Meng Luo
Multicystic peritoneal mesothelioma (MCPM) is a rare neoplasm, predominantly affecting female patients during their reproductive years. The lesion is usually distributed diffusely in the abdomen and pelvis, but the peritoneum of the pelvic organs is the most common site. MCPM is composed of fluid-filled translucent cysts, connected by varying amounts of fibrous tissue, and lined by a layer of mesothelial cells. Because of the rarity of this disease, the pathogenesis and natural history of MCPM remain poorly understood and continuously debated...
March 31, 2017: Current Problems in Cancer
https://www.readbyqxmd.com/read/28528002/iron-microencapsulation-in-gum-tragacanth-using-solvent-evaporation-method
#8
Elham Asghari-Varzaneh, Mohammad Shahedi, Hajar Shekarchizadeh
In this study iron salt (FeSO4·7H2O) was microencapsulated in gum tragacanth hydrogel using solvent evaporation method. Three significant parameters (ferrous sulfate content, content of gum tragacanth, and alcohol to mixture ratio) were optimized by response surface methodology to obtain maximum encapsulation efficiency. Ferrous sulfate content, 5%, content of gum tragacanth, 22%, and alcohol to mixture ratio, 11:1 was determined to be the optimum condition to reach maximum encapsulation efficiency. Microstructure of iron microcapsules was thoroughly monitored using scanning electron microscopy (SEM)...
May 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28527886/immuno-pcr-a-new-technique-for-the-serodiagnosis-of-tuberculosis
#9
REVIEW
Promod K Mehta, Bhawna Dahiya, Suman Sharma, Netrapal Singh, Renu Dharra, Zoozeal Thakur, Neeru Mehta, Krishna B Gupta, Mahesh C Gupta, Dhruva Chaudhary
Rapid and accurate diagnosis of tuberculosis (TB) is essential to control the disease. The conventional microbiological tests have limitations and there is an urgent need to devise a simple, rapid and reliable point-of-care (POC) test. The failure of TB diagnostic tests based on antibody detection due to inconsistent and imprecise results has stimulated renewed interest in the development of rapid antigen detection methods. However, the World Health Organization (WHO) has emphasized to continue research for designing new antibody-based detection tests with improved accuracy...
May 17, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28527880/intensive-monitoring-of-urine-output-is-associated-with-increased-detection-of-acute-kidney-injury-and-improved-outcomes
#10
Kui Jin, Raghavan Murugan, Florentina E Sileanu, Emily Foldes, Priyanka Priyanka, Gilles Clermont, John A Kellum
BACKGROUND: Urine output (UO) is a vital sign for critical ill patients but standards for monitoring and reporting vary widely between ICUs. Careful monitoring of UO could lead to earlier recognition of acute kidney injury (AKI) and better fluid management. We sought to determine if intensity of UO monitoring is associated with outcomes in patients with and without AKI. METHODS: Retrospective cohort study including 15,724 adults admitted to ICUs from 2000-2008. Intensive UO monitoring was defined as hourly recordings and no gaps >3 hours for the first 48 hours after ICU admission...
May 17, 2017: Chest
https://www.readbyqxmd.com/read/28527802/abrupt-weaning-reduces-postweaning-growth-and-is-associated-with-alterations-in-gastrointestinal-markers-of-development-in-dairy-calves-fed-an-elevated-plane-of-nutrition-during-the-preweaning-period
#11
M A Steele, J H Doelman, L N Leal, F Soberon, M Carson, J A Metcalf
The benefits of feeding elevated quantities of milk to dairy calves have been well established. However, there is a reluctance to adopt this method of feeding in commercial dairy production because of concerns around growth, health, and ruminal development during weaning. The objective of this study was to characterize the effect of an abrupt (0 d step-down) or gradual (12 d step-down) feeding scheme when calves are fed an elevated plane of nutrition (offered 1.35 kg of milk replacer/d). For this experiment, a total of 54 calves were randomly assigned to an abrupt or a gradual weaning protocol before weaning at 48 d of life...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28527714/investigation-of-left-and-right-lateral-fluid-percussion-injury-in-c57bl6-j-mice-in-vivo-functional-consequences
#12
Lesley D Schurman, Terry L Smith, Anthony J Morales, Nancy N Lee, Thomas M Reeves, Linda L Phillips, Aron H Lichtman
Although rodent models of traumatic brain injury (TBI) reliably produce cognitive and motor disturbances, behavioral characterization resulting from left and right hemisphere injuries remains unexplored. Here we examined the functional consequences of targeting the left versus right parietal cortex in lateral fluid percussion injury, on Morris water maze (MWM) spatial memory tasks (fixed platform and reversal) and neurological motor deficits (neurological severity score and rotarod). In the MWM fixed platform task, right lateral injury produced a small delay in acquisition rate compared to left...
May 17, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28527686/local-innate-responses-and-protective-immunity-after-intradermal-immunization-with-bovine-viral-diarrhea-virus-e2-protein-formulated-with-a-combination-adjuvant-in-cattle
#13
Sams M A Sadat, Marlene Snider, Ravendra Garg, Robert Brownlie, Sylvia van Drunen Littel-van den Hurk
Bovine viral diarrhea virus (BVDV) is one of the most serious pathogens in cattle. Recently, we developed a novel adjuvant platform (TriAdj) that includes a toll-like receptor 3 agonist, poly (I:C); an innate defense regulatory peptide; and water-soluble polymer, poly[di(sodiumcarboxylatoethylphenoxy)]-phosphazene (PCEP). To develop a needle-free intradermal (ID) subunit vaccine, the BVDV type-2 E2 protein was formulated with TriAdj, and immune protection was evaluated in calves against a BVDV-2 strain. Intradermal delivery of E2/TriAdj elicited robust virus neutralizing antibodies and cell-mediated immune responses including CD4(+) and CD8(+) T-cell responses...
May 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28527648/a-case-of-amebiasis-with-negative-serologic-markers-that-caused-intra-abdominal-abscess
#14
Rie Tanaka, Norihiro Furusyo, Rinne Takeda, Sho Yamasaki, Akira Kusaga, Eiichi Ogawa, Masayuki Murata, Ryota Nakanishi, Yoshihiko Maehara
A 23-year-old Japanese woman presented with abdominal distention following fever, diarrhea, and abdominal pain during a stay in Taiwan. Serology for the detection of amebic-antibodies and stool microscopic examination were both negative. A computed tomography scan showed a 13 cm diameter abscess spreading from the lower abdominal wall to the pelvic retroperitoneal space. Needle aspiration of the abscess was done under computed tomography guidance, and microscopy of the aspirated fluid revealed trophozoites of Entamoeba...
May 17, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28527634/low-penetration-of-caspofungin-into-cerebrospinal-fluid-following-intravenous-administration-of-standard-doses
#15
Volker Strenger, Fedja Farowski, Carsten Müller, Nora Hofer, Hans Jürgen Dornbusch, Daniela Sperl, Herwig Lackner, Martin Benesch, Christian Urban
The kinetics of caspofungin (CAS) in cerebrospinal fluid (CSF) following intravenous (i.v.) administration has been studied exclusively in animal models. However, human data are missing so far. In this study, 13 CSF samples were obtained at different time points following i.v. infusion of CAS in ten paediatric haemato-/oncological patients (age range 1.0-14.2 years, median 8.6 years) without signs of central nervous system (CNS) infection (n = 10 samples) or with infectious meningitis (n = 3 samples). Serum samples were obtained concurrently...
May 17, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28527630/diagnostic-accuracy-of-csf-neurofilament-light-chain-protein-in-the-biomarker-guided-classification-system-for-alzheimer-s-disease
#16
Simone Lista, Nicola Toschi, Filippo Baldacci, Henrik Zetterberg, Kaj Blennow, Ingo Kilimann, Stefan J Teipel, Enrica Cavedo, Antonio Melo Dos Santos, Stéphane Epelbaum, Foudil Lamari, Bruno Dubois, Roberto Floris, Francesco Garaci, Harald Hampel
We assessed the diagnostic accuracy of cerebrospinal fluid (CSF) neurofilament light chain (NFL) protein in the classification of patients with Alzheimer's disease (AD) and cognitively healthy control individuals (HCs) and patients with frontotemporal dementia (FTD) as comparisons. Particularly, we tested the performance of CSF NFL concentration in differentiating patient groups stratified by fluid biomarker profiles, independently of the severity of cognitive impairment (mild cognitive impairment (MCI) and AD dementia individuals), using a biomarker-guided descriptive classification system for AD...
May 17, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28527586/gastrointestinal-bowel-obstruction-in-acute-ischemic-stroke-incidence-risk-factors-and-outcomes-in-a-u-s-nationwide-analysis-of-3-998-667-hospitalizations
#17
Kavelin Rumalla, Ashwath S Kumar, Manoj K Mittal
OBJECTIVE: The prognosis from acute ischemic stroke (AIS) is worsened by poststroke medical complications. The incidence, risk factors, and outcomes of gastrointestinal bowel obstruction (GIBO) in AIS are not known. METHODS: We queried the Nationwide Inpatient Sample (2002-2011) to identify all patients with a primary diagnosis of AIS and subsets with and without a secondary diagnosis of GIBO without hernia. Multivariable analysis was utilized to identify risk factors for GIBO in AIS patients and the association between GIBO, in-hospital complications, and outcomes...
May 17, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28527527/small-scale-separation-of-isoxazole-structurally-related-analogues-by-chiral-supercritical-fluid-chromatography
#18
Yasmine Zehani, Lucas Lemaire, Regis Millet, Emmanuelle Lipka
Chromatographic preparative enantioseparation is now the preferred method to obtain milligram amounts of pure enantiomers in the first step of the development of a therapeutic molecule. Supercritical fluid chromatography has many advantages over liquid chromatography and was therefore chosen for the small scale enantioseparation of four original 3-carboxamido-5-aryl isoxazole molecules, ligands of the CB2 cannabinoid receptors. The preparation of about 10mg of each of the eight enantiomers was achieved successfully on a Chiralpak(®) AD-H (tris-3,5-dimethylphenylcarbamate of amylose) polysaccharide based stationary phase with various percentages of ethanol as a co-solvent, through mixed-stream injections and touching-band approach...
May 12, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28527450/on-the-accuracy-of-one-and-two-particle-solvation-entropies
#19
Benedict W J Irwin, David J Huggins
Evaluating solvation entropies directly and combining with direct energy calculations is one way of calculating free energies of solvation and is used by Inhomogeneous Fluid Solvation Theory (IFST). The configurational entropy of a fluid is a function of the interatomic correlations and can thus be expressed in terms of correlation functions. The entropies in this work are directly calculated from a truncated series of integrals over these correlation functions. Many studies truncate all terms higher than the solvent-solute correlations...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28527442/inhomogeneous-fluid-of-penetrable-spheres-application-of-the-random-phase-approximation
#20
Yan Xiang, Derek Frydel
The focus of the present work is the application of the random phase approximation (RPA), derived for inhomogeneous fluids [Frydel and Ma, Phys. Rev. E 93, 062112 (2016)], to penetrable-spheres. As penetrable-spheres transform into hard-spheres with increasing interactions, they provide an interesting case for exploring the RPA, its shortcomings, and limitations, the weak- versus the strong-coupling limit. Two scenarios taken up by the present study are a one-component and a two-component fluid with symmetric interactions...
May 21, 2017: Journal of Chemical Physics
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