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https://www.readbyqxmd.com/read/28931218/aberrant-humoral-immune-responses-in-neurosyphilis-cxcl13-cxcr5-play-a-pivotal-role-for-b-cell-recruitment-to-the-cerebrospinal-fluid
#1
Qian Yu, Yuanyuan Cheng, Yuanyuan Wang, Cuini Wang, Haikong Lu, Zhifang Guan, Jian Huang, Weiming Gong, Mei Shi, Liyan Ni, Juan Wu, Ruirui Peng, Pingyu Zhou
Background: Previous studies documented that humoral immune responses participated in neurological damage in neurosyphilis patients. However, the mechanisms that trigger and maintain humoral immunity involved in neurosyphilis remain unknown. Methods: Using flow cytometry, expression of B cells was measured in neurosyphilis and non-neurosyphilis. Expression of immunoglobulin indices and chemokine ligand CXCL13 was detected by enzyme-linked immunosorbent assay. The migration and inhibition assays were evaluated by modified chamber assays...
September 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28931087/microbial-analysis-of-zetaproteobacteria-and-co-colonizers-of-iron-mats-in-the-troll-wall-vent-field-arctic-mid-ocean-ridge
#2
Jan Vander Roost, Ingunn Hindenes Thorseth, Håkon Dahle
Over the last decade it has become increasingly clear that Zetaproteobacteria are widespread in hydrothermal systems and that they contribute to the biogeochemical cycling of iron in these environments. However, how chemical factors control the distribution of Zetaproteobacteria and their co-occurring taxa remains elusive. Here we analysed iron mats from the Troll Wall Vent Field (TWVF) located at the Arctic Mid-Ocean Ridge (AMOR) in the Norwegian-Greenland Sea. The samples were taken at increasing distances from high-temperature venting chimneys towards areas with ultraslow low-temperature venting, encompassing a large variety in geochemical settings...
2017: PloS One
https://www.readbyqxmd.com/read/28931080/low-serum-level-of-mir-485-3p-predicts-poor-survival-in-patients-with-glioblastoma
#3
Zhi-Qiang Wang, Mei-Yin Zhang, Mei-Ling Deng, Nuo-Qing Weng, Hui-Yun Wang, Shao-Xiong Wu
MicroRNAs (miRNAs) are short noncoding RNAs that play critical roles in human malignancies and can be used as biomarkers for cancer. Until now, a number of biomarkers for prognosis of glioblastoma (GBM) have been reported in tumor tissues but only a few biomarkers in circulating fluid. Using a custom microarray, we previously identified 19 differentially expressed miRNAs in serum of patients with GBM. In this study, we investigated whether 3 of the 19 miRNAs in serum could be used as prognostic biomarkers for patients with GBM...
2017: PloS One
https://www.readbyqxmd.com/read/28930953/proposed-clinical-pathway-for-nonoperative-management-of-high-grade-pediatric-pancreatic-injuries-based-on-a-multicenter-analysis-a-pediatric-trauma-society-collaborative
#4
Bindi J Naik-Mathuria, Eric H Rosenfeld, Ankush Gosain, Randall Burd, Richard A Falcone, Rajan Thakkar, Barbara Gaines, David Mooney, Mauricio Escobar, Mubeen Jafri, Anthony Stallion, Denise B Klinkner, Robert Russell, Brendan Campbell, Rita V Burke, Jeffrey Upperman, David Juang, Shawn St Peter, Stephon J Fenton, Marianne Beaudin, Hale Wills, Adam Vogel, Stephanie Polites, Adam Pattyn, Christine Leeper, Laura V Veras, Ilan Maizlin, Shefali Thaker, Alexis Smith, Megan Waddell, Joseph Drews, James Gilmore, Lindsey Armstrong, Alexis Sandler, Suzanne Moody, Brandon Behrens, Laurence Carmant
BACKGROUND: Guidelines for nonoperative management (NOM) of high-grade pancreatic injuries in children have not been established, and wide practice variability exists. The purpose of this study was to evaluate common clinical strategies across multiple pediatric trauma centers to develop a consensus-based standard clinical pathway. METHODS: A multicenter, retrospective review was conducted of children with high-grade (American Association of Surgeons for Trauma grade III-V) pancreatic injuries treated with NOM between 2010 and 2015...
October 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28930950/increased-mortality-in-trauma-patients-who-develop-postintubation-hypotension
#5
Robert S Green, Michael B Butler, Mete Erdogan
BACKGROUND: Postintubation hypotension (PIH) is common and associated with poor outcomes in critically ill patient populations requiring emergency endotracheal intubation (ETI). The importance of PIH in the trauma population remains unclear. The objective of this study was to determine the prevalence of PIH in trauma patients and assess the association of PIH with patient outcomes. METHODS: Retrospective case series of adult (≥16 years) patients who were intubated on arrival at a tertiary trauma center in Halifax, Nova Scotia, Canada, between 2000 and 2015...
October 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28930945/effects-of-propranolol-and-clonidine-on-brain-edema-blood-brain-barrier-permeability-and-endothelial-glycocalyx-disruption-following-fluid-percussion-brain-injury-in-the-rat
#6
Gustav Folmer Genét, Peter Bentzer, Morten Bagge Hansen, Sisse Rye Ostrowski, Pär Ingemar Johansson
BACKGROUND: Traumatic brain injury causes a disruption of the vascular endothelial glycocalyx layer that is associated with an overactivation of the sympathoadrenal system. We hypothesized that early and unselective beta-blockade with propranolol alone or in combination with the alfa2-agonist clonidine would decrease brain edema, blood-brain-barrier permeability and glycocalyx disruption at 24 hours after trauma. METHODS: We subjected fifty-three adult male Sprague-Dawley rats to lateral fluid-percussion brain injury and randomized infusion with propranolol (n=16), propranolol+clonidine (n=16), vehicle (n=16) or sham (n=5) for 24 hours...
September 20, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28930937/administration-of-hypertonic-solutions-for-hemorrhagic-shock-a-systematic-review-and-meta-analysis-of-clinical-trials
#7
Meng-Che Wu, Tin-Yun Liao, Erica M Lee, Yueh-Sheng Chen, Wan-Ting Hsu, Meng-Tse Gabriel Lee, Po-Yang Tsou, Shyr-Chyr Chen, Chien-Chang Lee
BACKGROUND: Several clinical trials on hypertonic fluid administration have been completed, but the results have been inconclusive. The objective of this study is to summarize current evidence for treating hypovolemic patients with hypertonic solutions by performing a systematic review and meta-analysis. METHODS: Major electronic databases were searched from inception through June 2014. We included only randomized controlled trials involving hemorrhagic shock patients treated with hypertonic solutions...
September 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28930879/repeat-effort-performance-is-reduced-24-h-following-acute-dehydration-in-mixed-martial-arts-athletes
#8
Oliver R Barley, Fiona Iredale, Dale W Chapman, Amanda Hopper, Chris Abbiss
This study sought to determine the influence of acute dehydration on physical performance and physiology in Mixed Martial Arts (MMA). MMA athletes (n=14; age: 23±4 years), completed in a randomised counterbalanced order a dehydration protocol, (DHY: 3 h cycling at 60 W in 40°C to induce 5% dehydration) or thermoneutral control (25°C: CONT) exercise, followed by ad libitum fluid/food intake. Performance testing (a repeat sled push test, medicine ball chest throw and vertical jump) was completed 3 and 24 h following the intervention, while urine and blood samples were collected before, 20 min, 3 and 24 h following the intervention...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28930847/guillain-barr%C3%A3-like-axonal-polyneuropathy-associated-with-toscana-virus-infection-a-case-report
#9
Eugenia Rota, Nicola Morelli, Paolo Immovilli, Paola De Mitri, Donata Guidetti
RATIONALE: Numerous cases of post-infectious Guillain-Barré syndrome (GBS) have been reported in the literature. Toscana virus (TOSV) is an arthropod-borne emerging pathogen in the Mediterranean area. PATIENT CONCERNS: A 40-year-old male patient was admitted to hospital for acute facial weakness, associated to numbness paraesthesias at lower and upper limbs. The neurological examination revealed facial diplegia and reduced tendon reflexes. The nerve conduction studies documented an acute motor and sensory axonal neuropathy (AMSAN); the lumbar puncture detected albuminocytologic dissociation...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28930834/allergic-shock-caused-by-ingestion-of-cooked-jellyfish-a-case-report
#10
Zhixing Li, Xungang Tan, Botao Yu, Renliang Zhao
RATIONALE: Although anaphylaxis caused by jellyfish stings is common in coastal areas, an allergic shock caused by cooked jellyfish ingestion has never been reported in China. In this paper, we report a case of allergic shock being caused by ingestion of cooked salt-preserved jellyfish shortly after being stung by a live jellyfish. PATIENT CONCERNS: A 26-year-old Chinese man presented with dizziness, pruritus, dyspnea, hypotension, and tachycardia after eating cooked salted jellyfish...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28930802/morphologic-features-associated-with-fibrotic-scarring-after-anti-vascular-endothelial-growth-factor-therapy-in-polypoidal-choroidal-vasculopathy
#11
Jae Hui Kim, Young Suk Chang, Jong Woo Kim, Chul Gu Kim, Dong Won Lee, Ye Ji Kim
PURPOSE: To investigate morphologic features associated with fibrotic scarring after anti-vascular endothelial growth factor therapy in polypoidal choroidal vasculopathy (PCV). METHODS: This retrospective study included 293 patients who had been diagnosed with PCV and treated with anti-vascular endothelial growth factor monotherapy during a 12-month follow-up period. Associations of morphologic features, including type of PCV, location of the polypoidal lesion, greatest linear dimension, largest polyp diameter, choroidal vascular hyperpermeability, pigment epithelial detachment, intraretinal fluid, and subretinal hyperreflective material (SHRM) with fibrotic scar at 12 months were analyzed...
September 19, 2017: Retina
https://www.readbyqxmd.com/read/28930774/high-levels-of-cerebrospinal-fluid-chemokines-point-to-the-presence-of-neuroinflammation-in-peripheral-neuropathic-pain-a-cross-sectional-study-of-two-cohorts-of-patients-compared-to-healthy-controls
#12
Emmanuel Bäckryd, Anne-Li Lind, Måns Thulin, Anders Larsson, Björn Gerdle, Torsten Gordh
Animal models suggest that chemokines are important mediators in the pathophysiology of neuropathic pain. Indeed, these substances have been called "gliotransmitters", a term that illustrates the close interplay between glial cells and neurons in the context of neuroinflammation and pain. However, evidence in humans is scarce. The aim of the study was to determine a comprehensive cerebrospinal fluid (CSF) inflammatory profile for neuropathic pain patients. Our hypothesis was that we would thereby find indications of a postulated on-going process of central neuroinflammation...
September 18, 2017: Pain
https://www.readbyqxmd.com/read/28930747/quantification-of-bisoprolol-and-metoprolol-in-simultaneous-human-serum-and-cerebrospinal-fluid-samples
#13
Ali Sigaroudi, Martina Kinzig, Oliver Wahl, Christoph Stelzer, Michael Schroeter, Uwe Fuhr, Ulrike Holzgrabe, Fritz Sörgel
BACKGROUND: Bisoprolol and metoprolol are moderately lipophilic, beta(1)-selective betablockers reported to cause adverse effects in the central nervous system (CNS), such as sleep disturbance, suggesting that both drugs may reach relevant concentrations in the brain. CNS beta(2)-receptor blockade has been suspected to be related to such effects. The higher molecular size of bisoprolol (325 Dalton) and the higher beta(1)-selectivity compared to metoprolol (267 Dalton) would suggest a lower rate of CNS effects...
September 21, 2017: Pharmacology
https://www.readbyqxmd.com/read/28930633/controlled-orientation-of-droplets-in-ellipsoid-filled-polymeric-emulsions-by-particle-parameters-and-flow-conditions
#14
Chaoying Mao, Yajiang Huang, Junlong Yang, Miqiu Kong, Yuan Wang, Qi Yang, Guangxian Li
The effect of particle parameters (aspect ratio, AR, and concentration) and flow conditions (gap spacing and shear rate) on droplet orientation deformation behavior in polystyrene (PS) particle-filled binary polymeric emulsions is investigated by using rheo-optical technique and confocal microscopy. Interesting vorticity orientation behavior is achieved by tailoring experimental conditions to gain rigid anisotropic droplets during slow confined shear flow. PS ellipsoids with high AR are found to reside both at the fluid interface in a monolayer side-on state and inside droplets, leading to the formation of rigid anisotropic droplets due to interfacial/bulk jamming effect at appropriate particle concentrations...
September 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28930473/molecular-insights-into-human-serum-albumin-as-a-receptor-of-amyloid-%C3%AE-in-the-extracellular-region
#15
Tae Su Choi, Hyuck Jin Lee, Jong Yoon Han, Mi Hee Lim, Hugh I Kim
Regulation of amyloid-β (Aβ) aggregation by metal ions and proteins is essential for understanding the pathology of Alzheimer's disease (AD). Human serum albumin (HSA), a regulator of metal and protein transportation, can modulate metal-Aβ interactions and Aβ aggregation in human fluid; however, the molecular mechanisms for such activities remain unclear. Herein, we report the molecular-level complexation between Zn(II), Cu(II), Aβ, and HSA, which is able to alter the aggregation and cytotoxicity of Aβ peptides and induce their cellular transportation...
September 20, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28930464/gastric-water-emptying-under-fed-state-clinical-trial-conditions-is-as-fast-as-under-fasted-conditions
#16
Michael Grimm, Elisabeth Scholz, Mirko Koziolek, Jens Peter Kuhn, Werner Weitschies
The Magenstrasse (stomach road) describes the fast emptying of ingested liquids from the postprandial stomach. The occurrence of the Magenstrasse has great importance for drugs administered together with food as it represents a shortcut through the fed stomach and allows rapid onset of plasma levels. In this study, we investigated the effect of different meals, their texture and fat content on the occurrence of the Magenstrasse. Since the administration of water is common 60 min after drug intake in clinical trials, we also investigated the effect of time point of water administration on the Magenstrasse by a second water administration...
September 20, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28930371/polyhydramnios-frequency-of-congenital-anomalies-in-relation-to-the-value-of-the-amniotic-fluid-index
#17
Jakub Kornacki, Magdalena Adamczyk, Przemysław Wirstlein, Maciej Osiński, Ewa Wender-Ożegowska
OBJECTIVES: The aims of our study were to assess the correlation between the amniotic fluid index (AFI) value and the frequency and type of fetal anomalies. MATERIAL AND METHODS: The material included 94 patients at the third trimester of pregnancy, 60 with mild polyhydramnios, 19 with moderate one, and 15 with severe one. Polyhydramnios was diagnosed if AFI was > 24 cm. All patients were divided into three groups based on the value of AFI: 1) mild polyhydramnios with AFI between 24...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28930342/yolk-shell-nanocomposite-particles-as-bioactive-bone-fillers-and-growth-factor-carriers
#18
Pujiang Shi, Sunny A Abbah, Yon Jin Chuah, Jun Li, Yong Zhang, Pengfei He, Hee Kit Wong, James C H Goh
The efficient delivery of bioactive molecules via rationally designed nanoparticles is an important focus in regenerative medicine. The yolk shell nanocomposite particles described herein are composed of silk fibroin movable cores formed within voided calcium carbonate shells to load and control the release of labile cytokines. These particles are excellent carrier vehicles of potent molecules as they sustained the release of bioactive Bone Morphogenetic Protein 2 (BMP-2) for more than 28 days in vitro. Implantation into bone defects in rabbits corroborates the in vitro results and also reveals that upon contact with phosphate containing body fluids, implanted yolk shell particles agglomerate and transform into a filler that adapts to defect contour to further act as an absorbable hemostatic agent...
September 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28930287/exposure-to-human-alveolar-lining-fluid-enhances-mycobacterium-bovis-bcg-vaccine-efficacy-against-mycobacterium-tuberculosis-infection-in-a-cd8-t-cell-dependent-manner
#19
J I Moliva, A P Hossfeld, C H Canan, V Dwivedi, M D Wewers, G Beamer, J Turner, J B Torrelles
Current tuberculosis (TB) treatments include chemotherapy and preventative vaccination with Mycobacterium bovis Bacillus Calmette-Guérin (BCG). In humans, however, BCG vaccination fails to fully protect against pulmonary TB. Few studies have considered the impact of the human lung mucosa (alveolar lining fluid (ALF)), which modifies the Mycobacterium tuberculosis (M.tb) cell wall, revealing alternate antigenic epitopes on the bacterium surface that alter its pathogenicity. We hypothesized that ALF-induced modification of BCG would induce better protection against aerosol infection with M...
September 20, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28930184/use-of-wavelet-transform-to-detect-compensated-and-decompensated-stages-in-the-congestive-heart-failure-patient
#20
Pratibha Sharma, Kimberly Newman, Carlin S Long, A J Gasiewski, Frank Barnes
This research work is aimed at improving health care, reducing cost, and the occurrence of emergency hospitalization in patients with Congestive Heart Failure (CHF) by analyzing heart and lung sounds to distinguish between the compensated and decompensated states. Compensated state defines stable state of the patient but with lack of retention of fluids in lungs, whereas decompensated state leads to unstable state of the patient with lots of fluid retention in the lungs, where the patient needs medication. Acoustic signals from the heart and the lung were analyzed using wavelet transforms to measure changes in the CHF patient's status from the decompensated to compensated and vice versa...
September 20, 2017: Biosensors
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