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https://www.readbyqxmd.com/read/28433001/principal-cell-types-of-sleep-wake-regulatory-circuits
#1
REVIEW
Barbara E Jones
Electrophysiological recordings indicate that neurons which discharge maximally in association with distinct sleep-wake states are distributed through the brain, albeit in differing proportions. As studied using juxtacellular recording and labeling within the basal forebrain, four functional principal cell types are distinguished as: wake/paradoxical sleep (W/PS)-, slow wave sleep (SWS)-, W- and PS-max active. They are each comprised by both GABA and glutamate neurons, in addition to acetylcholine neurons belonging to the W/PS group...
April 19, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/28432364/rrm-domain-of-als-ftd-causing-fus-characteristic-of-irreversible-unfolding-spontaneously-self-assembles-into-amyloid-fibrils
#2
Yimei Lu, Liangzhong Lim, Jianxing Song
526-residue FUS functions to self-assemble into reversible droplets/hydrogels, which could be further solidified into pathological fibrils. FUS is intrinsically prone to aggregation, composed of N-terminal low-sequence complexity (LC); RNA-recognition motif (RRM) and C-terminal LC domains. Intriguingly, previous in vivo studies revealed that its RRM is required for manifesting FUS cytotoxicity but the underlying mechanism remains unknown. Here, we characterized solution conformations of FUS and its five differentially dissected fragments, followed by detailed investigations on thermal unfolding, NMR dynamics and self-assembly of RRM...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28431614/permeability-surface-area-product-analysis-in-malignant-brain-edema-prediction-a-pilot-study
#3
O Volny, P Cimflova, T-Y Lee, B K Menon, C D d'Esterre
BACKGROUND AND PURPOSE: Using an extended CT perfusion acquisition (150s), we sought to determine the association between perfusion parameters and malignant edema after ischemic stroke. METHODS: Patients (from prospective study PROVE-IT, NCT02184936) with terminal internal carotid artery±proximal middle cerebral occlusion were involved. CTA was assessed for clot location and status of leptomeningeal collaterals. The following CTP parameters were calculated within the ischemic territory and contralaterally: permeability surface area product (PS), cerebral blood flow (CBF) and cerebral blood volume (CBV)...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28431519/semi-automatic-synthesis-and-biodistribution-of-n-2-18-f-fluoropropionyl-bis-zinc-ii-dipicolylamine-18-f-fp-dpazn2-for-ad-model-imaging
#4
Fuhua Wen, Dahong Nie, Kongzhen Hu, Ganghua Tang, Shaobo Yao, Caihua Tang
BACKGROUND: Phosphatidylserine (PS)-targeting positron emission tomography (PET) imaging with labeled small-molecule tracer is a crucial non-invasive molecule imaging method of apoptosis. In this study, semi-automatic radiosynthesis and biodistribution of N-(2-(18)F-fluoropropionyl)-bis(zinc(II)-dipicolylamine) ((18)F-FP-DPAZn2), as a potential small-molecule tracer for PET imaging of cell death in Alzheimer's disease (AD) model, were performed. METHODS: (18)F-FP-DPAZn2 was synthesized on the modified PET-MF-2V-IT-I synthesizer...
April 21, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28430953/gastric-proteins-muc5ac-and-tff1-as-potential-diagnostic-markers-of-colonic-sessile-serrated-adenomas-polyps
#5
Magomed Khaidakov, Keith K Lai, D Roudachevski, Julietta Sargsyan, Hannah E Goyne, Rish K Pai, Laura W Lamps, Curt H Hagedorn
Objectives: A subset of colon cancers originates from sessile serrated adenomas/polyps (SSA/Ps). Our goal was to identify markers for SSA/Ps that could aid in distinguishing them from hyperplastic polyps (HPs). Methods: We performed immunostaining for gastric proteins MUC5AC and TFF1 in formalin-fixed, paraffin-embedded (FFPE) samples of HPs (n = 47), SSA/Ps (n = 37), and normal colon (n = 30). Results: Control mucosa expressed only trace amounts of MUC5AC and TFF1...
November 1, 2016: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28430802/the-quality-changes-in-fresh-frozen-plasma-of-the-blood-donors-at-high-altitude
#6
Zongkui Wang, Hua Liu, Miaomiao Dou, Xi Du, Jijun Hu, Na Su, Ya Wang, Rong Zhang, Changqing Li
OBJECTIVE: According to the international guidelines, fresh frozen plasma (FFP) is unanimously used to treat coagulation disorders. The quality of FFP is critical for the clinical transfusion. Till now, few studies have integratedly evaluated the differences of FFP from blood donors at between high altitude (HA) and low altitude (LA). Besides, there were no special quality standards for HA FFP in China. MATERIALS AND METHODS: Up to 41 HA (Lhasa, 3700 m) and 46 LA (Chengdu, 500 m) blood donors were included in our study to estimate the differences of FFP from HA and LA blood donors...
2017: PloS One
https://www.readbyqxmd.com/read/28430624/photosensitizers-in-prostate-cancer-therapy
#7
REVIEW
Taher Gheewala, Troy Skwor, Gnanasekar Munirathinam
The search for new therapeutics for the treatment of prostate cancer is ongoing with a focus on the balance between the harms and benefits of treatment. New therapies are being constantly developed to offer treatments similar to radical therapies, with limited side effects. Photodynamic therapy (PDT) is a promising strategy in delivering focal treatment in primary as well as post radiotherapy prostate cancer. PDT involves activation of a photosensitizer (PS) by appropriate wavelength of light, generating transient levels of reactive oxygen species (ROS)...
February 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430605/prognostic-significance-of-neutrophil-to-lymphocyte-ratio-in-patients-with-malignant-pleural-mesothelioma-a-meta-analysis
#8
Nan Chen, Shuai Liu, Lin Huang, Wanling Li, Wenhao Yang, Tianxin Cong, Lin Ding, Meng Qiu
Systemic inflammation responses can be reflected by peripheral blood count and combine index like the neutrophil-to-lymphocyte (NLR). The NLR has been reported to be a poor prognostic indicator in cancer recently. However, the prognostic effect of the NLR in patients with malignant pleural mesothelioma (MPM) still unclear yet. We conducted this meta-analysis aiming to evaluate the pooled value of NLR in prognosis as well as clinical characteristics in malignant pleural mesothelioma. A total of 11 studies with 1533 patients were included in this meta-analysis, in which 10 studies investigated the prognosis role of NLR using hazard ratio (HR) and 95% confidence intervals (95% CI)...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430328/outcome-of-various-hydrophobic-acrylic-intraocular-lens-implantations-in-children-with-congenital-cataract
#9
Jaspreet Sukhija, Savleen Kaur, Jagat Ram, Sonam Yangzes, Siddharth Madan, Jitender Jinagal
PURPOSE: To evaluate performance of different intraocular lenses (IOLs) after cataract surgery in children aged less than 2 years with regards to rates of visual axis opacification (VAO). METHODS: This was a retrospective chart review of children <2 years of age undergoing cataract surgery with primary posterior capsulotomy, anterior vitrectomy, and IOL over a period of 5 years with minimum follow-up of 1 year at a tertiary care institute. Children with microphthalmos, persistent fetal vasculature, traumatic cataract, aphakia, secondary IOLs, or any other coexisting ocular disease were excluded...
April 13, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28430259/impact-of-assisting-atmospheric-pressure-plasma-on-the-formation-of-micro-and-nanoparticles-during-picosecond-laser-ablation-of-titanium
#10
Stefan Grottker, Wolfgang Viöl, Christoph Gerhard
In this work, we investigated the generation of particles during pure laser and plasma-assisted laser ablation of titanium. Experiments were performed using a NIR picosecond laser at a wavelength of 1030 nm and a pulse duration of 8 ps. For plasma-assisted ablation, an atmospheric pressure dielectric barrier discharge plasma was applied where the process gas was argon. Quantitative particle distributions at sizes from 10 nm to 10 μm were determined. In addition, we evaluated the amount of ablated material via laser scanning microscopy...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28430255/widely-tunable-2%C3%A2-%C3%A2-%C3%AE-m-continuous-wave-and-mode-locked-fiber-laser
#11
Wanzhuo Ma, Tianshu Wang, Yan Zhang, Peng Liu, Yuwei Su, Qingsong Jia, Mingzhe Bi, Peng Zhang, Huilin Jiang
We propose and experimentally demonstrate a widely tunable mode-locked thulium-doped fiber laser. The laser can operate at both continuous-wave and mode-locked states at different pump power levels. A classic nonlinear polarization rotation structure is employed to obtain the passive mode-locked laser. A birefringence Lyot filter as a fiber comb filter is used to expand the tuning range. Thanks to the filtering component, the tuning range of the continuous-wave laser can reach 127 nm (1823-1950 nm). The tuning ranges of the single-wavelength and dual-wavelength mode-locked lasers are 94 nm (1835-1929 nm) and 87 nm (1831-1918 nm), respectively, with a 3...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28429386/relationship-between-desired-weight-and-eating-disorder-pathology-in-youth
#12
Hope K Boyd, Andrea E Kass, Erin C Accurso, Andrea B Goldschmidt, Jennifer E Wildes, Daniel Le Grange
OBJECTIVE: Individuals with eating disorders (ED), particularly anorexia nervosa (AN), and bulimia nervosa (BN), often wish to reduce their body weight in pursuit of a thin ideal, but no study has examined the relation between desired weight and ED pathology in a clinical population of youth. Given the potential impact of desired weight on normalization of eating patterns and weight restoration, we examined the relation between desired weight and ED pathology in youth with AN or BN. METHODS: Participants were 340 youth presenting to an outpatient ED clinical research program...
April 21, 2017: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/28429296/diurnal-changes-in-transcript-and-metabolite-levels-during-the-iron-deficiency-response-of-rice
#13
Jamie Selby-Pham, Adrian Lutz, Laura T Moreno-Moyano, Berin A Boughton, Ute Roessner, Alexander A T Johnson
BACKGROUND: Rice (Oryza sativa L.) is highly susceptible to iron (Fe) deficiency due to low secretion levels of the mugineic acid (MA) family phytosiderophore (PS) 2'-deoxymugineic acid (DMA) into the rhizosphere. The low levels of DMA secreted by rice have proved challenging to measure and, therefore, the pattern of DMA secretion under Fe deficiency has been less extensively studied relative to other graminaceous monocot species that secrete high levels of PS, such as barley (Hordeum vulgare L...
December 2017: Rice
https://www.readbyqxmd.com/read/28429293/topical-delivery-of-fenoprofen-calcium-via-elastic-nano-vesicular-spanlastics-optimization-using-experimental-design-and-in-vivo-evaluation
#14
Dalia Ali Farghaly, Ahmed A Aboelwafa, Manal Y Hamza, Magdy I Mohamed
The aim of this study was to investigate the potential of surfactant-based nanovesicular system (spanlastics) for topical delivery of fenoprofen calcium (FPCa) to eliminate its oral gastrointestinal adverse effects. FPCa-loaded spanlastics were prepared by thin film hydration (TFH) technique according to a full factorial design to investigate the influence of formulation variables on the drug entrapment efficiency (%EE), particle size (PS), deformability index (DI), and the % drug released after 24 h through the cellulose membrane (Q24h) using Design-Expert® software...
April 20, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28429192/photoinactivation-effect-of-eosin-methylene-blue-and-chlorophyllin-sodium-copper-against-staphylococcus-aureus-and-escherichia-coli
#15
Cynthia S A Caires, Cassia R B Leal, Carlos A N Ramos, Danielle Bogo, Alessandra R Lima, Eduardo J Arruda, Samuel L Oliveira, Anderson R L Caires, Valter A Nascimento
The use of eosin methylene blue according to Giemsa as photosensitizer is presented for the first time in this paper. The present study evaluated the potential application of chlorophyllin sodium copper salt (CuChlNa) and eosin methylene blue according to Giemsa (EMB) as antimicrobial photosensitizers (aPS) for photodynamic inactivation (PDI) of Staphylococcus aureus (gram-positive) and Escherichia coli (gram-negative) bacteria. The experiments were performed using S. aureus stain ATCC 25923 and E. coli ATCC 25922 in which five aPS concentrations (0...
April 20, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28427942/inhibitory-effects-of-ethyl-pyruvate-on-platelet-aggregation-and-phosphatidylserine-exposure
#16
Wenjin Li, Xinyu Yang, Minyuan Peng, Can Li, Guangfu Mu, Fangping Chen
Ethyl pyruvate (EP) is a stable lipophilic pyruvate derivative. Studies demonstrated that EP shows potent anti-oxidation, anti-inflammatory and anti-coagulant effects. Inflammation and coagulation are closely interacted with platelet activation. However, it is unclear whether EP has anti-platelet effects. Therefore, we investigated the anti-platelet effect of EP in this study in vitro. We found that EP inhibited agonists induced platelets aggregation, ATP release and adhesion to collagen. Flow cytometric analysis revealed that EP inhibited agonist induced platelets PAC-1 binding, as well as P-selectin and CD40L expression...
April 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28427214/high-mucin-5ac-expression-predicts-adverse-postoperative-recurrence-and-survival-of-patients-with-clear-cell-renal-cell-carcinoma
#17
Haijian Zhang, Yidong Liu, Huyang Xie, Weisi Liu, Qiang Fu, Dengfu Yao, Jiejie Xu, Jianxin Gu
BACKGROUND: Mucin 5AC (MUC5AC), as a member of secreted/gel-forming mucin family, was frequently found to be abnormally expressed in inflammation or malignant diseases. However, the clinic pathologic features and prognostic values of MUC5AC in clear-cell renal cell carcinoma (ccRCC) have not been reported up to now. METHODS: MUC5AC expression was analyzed by immunohistochemistry on tissue microarrays. Kaplan-Meier survival curves, Univariate and Multivariate Cox analysis and newly-established nomogram model were performed to evaluate the prognostic value...
March 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28427122/-application-on-the-quantitative-perfusion-parameters-of-dynamic-contrast-enhanced-mri-in-the-pathological-subtype-of-uterine-leiomyoma
#18
J Zheng, Z H Zhao, J F Yang, L Zhao, L M Yang, H J Hu
Objective: To analyze the value of the quantitative perfusion parameters of dynamic contrast-enhanced MRI(DCE-MRI) in the pathological subtype of uterine leiomyoma. Methods: A total of 35 cases of uterine leiomyoma confirmed by surgery and pathology were retrospectively analyzed in Shaoxing People's Hospital from October 2015 to May 2016.All cases underwent DCE-MRI. Quantitative perfusion parameters were prospectively measured and analyzed, including transfer constant (K(trans)) , efflux rate constant (K(ep)), extravascular extracellular space volume ratio (V(e)), blood plasma volume ratio (V(p)), permeability surface area product (PS) and plasma flow (F(p)) , using signal-input two-compartment tracer kinetic models (Extended Tofts model and Exchange model) in 35 leiomyoma cases...
April 18, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28427037/monitoring-of-styrene-oligomers-as-indicators-of-polystyrene-plastic-pollution-in-the-north-west-pacific-ocean
#19
Bum Gun Kwon, Keiji Amamiya, Hideto Sato, Seon-Yong Chung, Yoichi Kodera, Seung-Kyu Kim, Eung Jae Lee, Katsuhiko Saido
Styrene oligomers (SOs) as global contaminants are an environmental concern. However, little is known on the distribution of SOs in the ocean. Here, we show the distribution of anthropogenic SOs generated from discarded polystyrene (PS) plastic monitored from the coastal ocean surface waters (horizontal distribution) and deep seawaters (vertical distribution) in the North-West Pacific Ocean. SOs concentrations in surface seawater and deep seawater ranged from 0.17 to 4.26 μg L(-1) (total mean: 1.48 ± 1...
April 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28426936/cholesterol-assisted-bacterial-cell-surface-engineering-for-photodynamic-inactivation-of-gram-positive-and-gram-negative-bacteria
#20
Hao-Ran Jia, Ya-Xuan Zhu, Zhan Chen, Fu-Gen Wu
Antibacterial photodynamic therapy (PDT) which enables effective killing of regular and multidrug-resistant (MDR) bacteria is a promising treatment modality for bacterial infection. However, because most photosensitizer (PS) molecules fail to strongly interact with the surface of Gram-negative bacteria, this technique is only suitable for treating Gram-positive bacterial infection, which largely hampers its practical applications. Herein, we revealed for the first time that cholesterol could significantly facilitate the hydrophobic binding of PSs to the bacterial surface, achieving the hydrophobic interaction-based bacterial cell surface engineering that could effectively photo-inactivate both Gram-negative and Gram-positive bacteria...
April 20, 2017: ACS Applied Materials & Interfaces
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