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https://www.readbyqxmd.com/read/28241695/-clinical-abservations-of-pulmonary-surfactant-s-autologous-transfusion-in-massive-lung-lavage
#1
X Y Xiao, X P Zhang, G Chen, Y Yuan, G X Ma, J Y Duan, Z Q Sun, J H Huang, X Cao, J Zhang
Objective: Investigate the pulmonary surfactant autotransfusion effect on the recovery of respiratory function in patients with whole lung lavage, to provide theoretical basis for the clinical application. Methods: We taken 30 patients of pneumoconiosis treated by whole lung lavage as the subjects. We extracted the pulmonary surfactant from lavage fluid, after single postoperative lung lavage for the first time; after one weeks when the second times of lung lavage were performed to the other side of the lung of patients, we put PS into the right side...
January 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28241559/detailed-optical-modelling-and-light-management-of-thin-film-organic-solar-cells-with-consideration-of-small-area-effects
#2
Benjamin Lipovšek, Andrej Čampa, Fei Guo, Christoph J Brabec, Karen Forberich, Janez Krč, Marko Topič
We present detailed numerical and experimental investigation of thin-film organic solar cells with a micro-textured light management foil applied on top of the front glass substrate. We first demonstrate that measurements of small-area laboratory solar cells are susceptible to a significant amount of optical losses that could lead to false interpretation of the measurement results. Using the combined optical model CROWM calibrated with realistic optical properties of organic films and other layers, we identify the origins of these losses and quantify the extent of their influence...
February 20, 2017: Optics Express
https://www.readbyqxmd.com/read/28241543/third-harmonic-generation-from-graphene-lying-on-different-substrates-optical-phonon-resonances-and-interference-effects
#3
N A Savostianova, S A Mikhailov
Graphene is a nonlinear material which can be used as a saturable absorber, frequency mixer and frequency multiplier. We theoretically study the third harmonic generation from graphene lying on different dielectric (dispersionless or polar) substrates, metalized or non-metalized on the back side. We show that the third harmonic intensity emitted from graphene lying on a substrate, can be increased by orders of magnitude as compared to the isolated graphene, due the LO-phonon resonances in a polar dielectric or due to the interference effects in the substrates metalized on the back side...
February 20, 2017: Optics Express
https://www.readbyqxmd.com/read/28241460/fiber-bragg-grating-sensors-for-the-oil-industry
#4
REVIEW
Xueguang Qiao, Zhihua Shao, Weijia Bao, Qiangzhou Rong
With the oil and gas industry growing rapidly, increasing the yield and profit require advances in technology for cost-effective production in key areas of reservoir exploration and in oil-well production-management. In this paper we review our group's research into fiber Bragg gratings (FBGs) and their applications in the oil industry, especially in the well-logging field. FBG sensors used for seismic exploration in the oil and gas industry need to be capable of measuring multiple physical parameters such as temperature, pressure, and acoustic waves in a hostile environment...
February 23, 2017: Sensors
https://www.readbyqxmd.com/read/28241130/nardostachys-jatamansi-targets-bdnf-trkb-to-alleviate-ketamine-induced-schizophrenia-like-symptoms-in-rats
#5
Anjali Janardhanan, Anjana Sadanand, Arambakkam Janardhanam Vanisree
OBJECTIVE: Schizophrenia, a common neurological disorder appearing in the late teens or early adulthood, is characterized by disorganized thinking, behaviour, and perception of emotions. Aberrant N-methyl-D-aspartate (NMDA) receptor-mediated synaptic plasticity is a major pathological event here due to dysfunction of dopamine and glutamate transmission at NMDA receptors. De-regulated brain-derived neurotrophic factor (BDNF), i.e., its signalling through the tropomyosin receptor kinase B (TrkB) receptor, is a major feature of schizophrenia...
February 28, 2017: Neuropsychobiology
https://www.readbyqxmd.com/read/28241112/lysine-deacetylase-inhibitors-in-parasites-past-present-and-future-perspectives
#6
Gebremedhin Solomon Hailu, Dina Robaa, Mariantonietta Forgione, Wolfgang Sippl, Dante Rotili, Antonello Mai
Current therapies for human parasite infections rely on a few drugs, most of which have severe side effects, and their helpfulness is being seriously compromised by the drug resistance problem. Globally, this is pushing discovery research of anti-parasitic drugs towards new agents endowed with new mechanisms of action. By using a "drug repurposing" strategy, histone deacetylase inhibitors (HDACi), which are presently clinically approved for cancer use, are now under investigation for various parasite infections...
February 27, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28241064/meta-analyses-of-comparative-efficacy-of-antidepressant-medications-on-peripheral-bdnf-concentration-in-patients-with-depression
#7
Chanjuan Zhou, Jiaju Zhong, Bin Zou, Liang Fang, Jianjun Chen, Xiao Deng, Lin Zhang, Xiang Zhao, Zehui Qu, Yang Lei, Ting Lei
BACKGROUND: Brain derived neurotrophic factor (BDNF) is one of the most important regulatory proteins in the pathophysiology of major depressive disorder (MDD). Increasing numbers of studies have reported the relationship between serum/plasma BDNF and antidepressants (ADs). However, the potential effects of several classes of antidepressants on BDNF concentrations are not well known. Hence, our meta-analyses aims to review the effects of differential antidepressant drugs on peripheral BDNF levels in MDD and make some recommendations for future research...
2017: PloS One
https://www.readbyqxmd.com/read/28240914/a-general-method-to-determine-the-flux-of-charged-molecules-through-nanopores-applied-to-%C3%A3-lactamase-inhibitors-and-ompf
#8
Ishan Ghai, Alessandro Pira, Mariano Andrea Scorciapino, Igor Bodrenko, Lorraine Benier, Matteo Ceccarelli, Mathias Winterhalter, Richard Wagner
A major challenge in the discovery of the new antibiotics against Gram-negative bacteria is to achieve sufficiently fast permeation in order to avoid high doses causing toxic side effects. So far, suitable assays for quantifying the uptake of charged antibiotics into bacteria are lacking. We apply electrophysiological zero-current assay using concentration gradients of ß-lactamase inhibitors combined with single channel conductance to quantify their flux rates through OmpF. Molecular dynamic simulations provide in addition details on the interactions between the nanopore wall and the charged solutes...
February 27, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28240872/annexin-v-conjugated-mixed-micelles-as-a-potential-drug-delivery-system-for-targeted-thrombolysis
#9
Yang Pan, Xiaoting Ren, Shuang Wang, Xin Li, Xianglin Luo, Zongning Yin
To alleviate the hemorrhagic side effect of thrombolysis therapy, a thrombus targeted drug delivery system based on the specific affinity of Annexin V to phosphatidylserine exposed on the membrane surface of activated platelet was developed. The amphiphilic and biodegradable biomaterial, polycaprolactone-block-poly(2-(dimethylamino)ethyl methacrylate)-block-poly(2-hydroxyethyl methacrylate) (PCL-b-PDMAEMA-b-PHEMA (PCDH)) triblock polymer, was synthesized via ring opening polymerization (ROP) and atom transfer radical polymerization (ATRP) to use as the nanocarriers of thrombolytic drug...
February 27, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28240775/consequences-matter-self-induced-tones-are-used-as-feedback-to-optimize-tone-eliciting-actions
#10
Bence Neszmélyi, János Horváth
Experimental paradigms investigating the processing of self-induced stimuli are often based on the implicit assumption that motor processes are invariable regardless of their consequences: It is presumed that actions with different sets of predictable sensory consequences do not differ in their physical characteristics or in their brain signal reflections. The present experiment explored this assumption in the context of action-related auditory attenuation by comparing actions (pinches) with and without auditory consequences...
February 27, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28240645/point-of-care-monitoring-for-the-management-of-trauma-induced-bleeding
#11
Alexander A Hanke, Hauke Horstmann, Michaela Wilhelmi
PURPOSE OF REVIEW: Knowledge of trauma-induced coagulopathy has been grown in the past and point-of-care suitable devices for coagulation testing have been introduced. Methodology and clinical application of different systems for point-of-care coagulation monitoring are shown with a focus on thrombelastography as measured by TEG, rotational thromboelastometry as measured by ROTEM and impedance aggregometry as measured by the multiplate analyser and ROTEM platelet. RECENT FINDINGS: Two different methods for point-of-care coagulation assessment are available: viscoelastic tests (ROTEM, TEG) and impedance aggregometry...
February 24, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28240590/a-meta-analysis-of-avascular-necrosis-in-systemic-lupus-erythematosus-prevalence-and-risk-factors
#12
Tatiana Nevskaya, Maeve P Gamble, Janet E Pope
OBJECTIVES: To determine the prevalence of and risk factors for avascular necrosis (AVN) in systemic lupus erythematosus (SLE). METHODS: MEDLINE, CINAHL, Web of Science, EMBASE and Cochrane Library were searched from inception to July, 2015 and a random effects model was used to combine frequencies; study quality was assessed using STROBE. RESULTS: 2,041 citations identified 62 articles. Many results had high heterogeneity. The prevalence of symptomatic AVN was 9% (range 0...
February 24, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28240422/cerebellar-lobules-and-dentate-nuclei-mirror-cortical-force-related-bold-responses-beyond-all-linear-expectations
#13
Adnan A S Alahmadi, Matteo Pardini, Rebecca S Samson, Karl J Friston, Ahmed T Toosy, Egidio D'Angelo, Claudia A M Gandini Wheeler-Kingshott
The relationship between the BOLD response and an applied force was quantified in the cerebellum using a power grip task. To investigate whether the cerebellum responds in an on/off way to motor demands or contributes to motor responses in a parametric fashion, similarly to the cortex, five grip force levels were investigated under visual feedback. Functional MRI data were acquired in 13 healthy volunteers and their responses were analyzed using a cerebellum-optimized pipeline. This allowed us to evaluate, within the cerebellum, voxelwise linear and non-linear associations between cerebellar activations and forces...
February 27, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28240389/increased-intrinsic-brain-connectivity-between-pons-and-somatosensory-cortex-during-attacks-of-migraine-with-aura
#14
Anders Hougaard, Faisal Mohammad Amin, Henrik B W Larsson, Egill Rostrup, Messoud Ashina
The neurological disturbances of migraine aura are caused by transient cortical dysfunction due to waves of spreading depolarization that disrupt neuronal signaling. The effects of these cortical events on intrinsic brain connectivity during attacks of migraine aura have not previously been investigated. Studies of spontaneous migraine attacks are notoriously challenging due to their unpredictable nature and patient discomfort. We investigated 16 migraine patients with visual aura during attacks and in the attack-free state using resting state fMRI...
February 27, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28240353/carbamazepine-versus-phenytoin-monotherapy-for-epilepsy-an-individual-participant-data-review
#15
REVIEW
Sarah J Nevitt, Anthony G Marson, Jennifer Weston, Catrin Tudur Smith
BACKGROUND: This is an updated version of the original Cochrane Review published in Issue 2, 2002 and its subsequent updates in 2010 and 2015.Epilepsy is a common neurological condition in which recurrent, unprovoked seizures are caused by abnormal electrical discharges from the brain. It is believed that with effective drug treatment, up to 70% of individuals with active epilepsy have the potential to become seizure-free and go into long-term remission shortly after starting drug therapy with a single antiepileptic drug in monotherapy...
February 27, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28240175/clinical-considerations-of-focal-drug-delivery-in-cancer-treatment
#16
Jamie Harris, Bill Chiu
According to the US Center for Disease Control, cancer deaths are the second most common cause of mortality in both adults and children. Definitive treatment of solid tumors involves surgical resection with or without systemic chemotherapy and radiation. The advent of local drug delivery presents a unique treatment modality that can offer substantial benefits in cancer management. Local drug delivery offers targeted drug delivery to cancer tissues while minimizing side effects of the medications. Three main phases in solid tumor management exist for the treating physician: initial diagnosis with tissue biopsy, surgical resection with or without chemotherapy, and management of metastatic disease...
February 24, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28240171/effective-strategies-and-applications-of-dendrimers-in-the-treatment-of-ovarian-cancer
#17
Akila Kesavan, Pakala Suresh Babu, Rayala Suresh Kumar, Ganesh Venkatraman
Ovarian cancer, the worldwide leading cause of gynecological cancer-related death, is primarily treated by surgery followed by platinum chemotherapy. Though the tumor initially responds to the treatment, only 30% of 5 year survival period has been recorded and this is mainly attributed to the acquired chemo resistance and frequent recurrence of tumor. Combination chemotherapy as well, led to therapeutic failure due to non-specificity and subsequent side effects. However, polymer mediated drug delivery aids in overcoming these impediments...
February 23, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28239985/salvage-surgery-for-primary-lung-cancer-after-chemotherapy-in-octogenarians
#18
Haruaki Hino, Takashi Nishimura, Chiemi Usuki, Manami Sazuka, Takuya Ito, Atsuko Seki, Jun-Ichi Nitadori, Hirokazu Yamada, Tomio Arai, Hiroshi Yamamoto, Jun Nakajima
An 81-year-old female patient was admitted to our institute because of abnormal X-ray results. Chest computed tomography showed a 7.7 × 5.3 cm mass located in the left lower lobe and multiple swollen lymph nodes. 18F-fluorodeoxyglucose-positron emission tomography indicated high standard uptake values in the mass and swollen lymph nodes. The patient was diagnosed with stage cT3N2M0-IIIA squamous cell carcinoma. Although the patient had multiple lymph node metastases and severe obstructive pulmonary function, four cycles of platinum doublet chemotherapy were initially performed and no side effect greater than grade 3 was experienced...
February 27, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28239828/the-relation-of-the-serum-aldosterone-level-and-central-serous-chorioretinopathy-a-pilot-study
#19
Q Gong, X-H Sun, S-T Yuan, Q-H Liu
OBJECTIVE: The aim of this study was to investigate the serum aldosterone level and abnormal levels of mineral corticoid in patients with the central serous chorioretinopathy (CSC). PATIENTS AND METHODS: All recruited patients with CSC received fundus fluorescein angiography (FFA), enhanced depth imaging spectral-domain optical coherence tomography (EDI-OCT) and serum aldosterone assay. The patients were classified into spontaneously resolved group and unresolved group according to a 3-months follow-up of Optical Coherence Tomography (OCT) examination...
February 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28239827/quantitative-difference-of-acute-intraoperative-expansion-in-various-body-regions
#20
E Raposio, N Bertozzi
OBJECTIVE: To investigate the efficacy of intraoperative sustained limited expansion (ISLE) by examining the ex vivo biomechanical properties of acutely expanded skin flaps. MATERIALS AND METHODS: Fourteen fresh male cadavers were tested. On both sides of each cadaver, a 4 × 10 cm, the laterally based flap was raised at the external auditory canal of the scalp and a 15 × 8 cm, the proximately based flap was raised at the lateral arm, anterior thorax, and lateral thigh...
February 2017: European Review for Medical and Pharmacological Sciences
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