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https://www.readbyqxmd.com/read/28109204/aquaspirillum-soli-sp-nov-isolated-from-a-soil-sample-in-the-people-s-republic-of-china
#1
Gabriela Moya, Huan Trinh, Zheng-Fei Yan, KyungHwa Won, Jung-Eun Yang, Qi-Jun Wang, MooChang Kook, Tae-Hoo Yi
A Gram-stain-negative, smooth, opaque, white pigmented, helical-shaped and motile bacterium by means of bipolar tufts of flagella, catalase- and oxidase-positive, grew under microaerophilic conditions, was isolated from soil sample of a reed pond in Shangqiu, Henan province, P. R. China. The strain named THG-SQE6T grows well at 25-42 oC, pH 6.5-7.5 and in the presence of 0-1 % (w/v) NaCl. The phylogenetic analysis based on 16S rRNA gene sequence showed that the strain THG-SQE6T was most closely related to Aquaspirillum serpens IAM 13944T (97...
January 19, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28108290/pmp22-mutant-allele-specific-sirna-alleviates-demyelinating-neuropathic-phenotype-in-vivo
#2
Ji-Su Lee, Eun Hyuk Chang, Ok Jae Koo, Dong Hwan Jwa, Won Min Mo, Geon Kwak, Hyo Won Moon, Hwan Tae Park, Young Bin Hong, Byung-Ok Choi
Charcot-Marie-Tooth disease (CMT) is a genetic disorder that can be caused by aberrations in >80 genes. CMT has heterogeneous modes of inheritance, including autosomal dominant, autosomal recessive, X-linked dominant, and X-linked recessive. Over 95% of cases are dominantly inherited. In this study, we investigated whether regulation of a mutant allele by an allele-specific small interfering RNA (siRNA) can alleviate the demyelinating neuropathic phenotype of CMT. We designed 19 different allele-specific siRNAs for Trembler J (Tr-J) mice harboring a naturally occurring mutation (Leu16Pro) in Pmp22...
January 17, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28108255/regular-exercise-promotes-memory-function-and-enhances-hippocampal-neuroplasticity-in-experimental-autoimmune-encephalomyelitis-mice
#3
Tae-Woon Kim, Yun-Hee Sung
Multiple sclerosis (MS) is a progressive condition affecting the central nervous system (CNS), and is characterized by the development of demyelinated lesions and plaques in the brain and spinal cord. Exercise is beneficial against dementia in elderly patients, so we investigated the effects of exercise on memory in relation to hippocampal demyelination and neuroplasticity in a mouse model of MS (experimental autoimmune encephalomyelitis [EAE]). Mice were randomly divided into three groups: Sham, EAE, and EAE and exercise (EAE+EX)...
January 17, 2017: Neuroscience
https://www.readbyqxmd.com/read/28107689/development-and-validation-of-a-liquid-chromatography-tandem-mass-spectrometry-method-for-the-assay-of-tafamidis-in-rat-plasma-application-to-a-pharmacokinetic-study-in-rats
#4
Hun-Chan Hyun, Jong-Woo Jeong, Hye-Rim Kim, Ji-Hoon Oh, Jong-Hwa Lee, Sungwook Choi, Yeon-Soo Kim, Tae-Sung Koo
Tafamidis is a first-in-class inhibitor of transthyretin amyloid fibril formation. It has been available in Argentina, Japan, and Mexico for the treatment of transthyretin amyloidosis in adult patients with early-stage symptomatic polyneuropathy. In this study, a rapid and sensitive liquid chromatography-tandem mass spectrometry method was developed and validated for the assay of tafamidis in rat plasma. The method was also assessed for its applicability to pharmacokinetic studies in rats. Tafamidis was extracted from rat plasma by the liquid-liquid extraction method using hydrochloric acid and ethyl acetate...
January 10, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28107625/gold-nanoshell-mediated-remote-myotube-activation
#5
Attilio Marino, Satoshi Arai, Yanyan Hou, Andrea Degl'Innocenti, Valentina Cappello, Barbara Mazzolai, Young-Tae Chang, Virgilio Mattoli, Madoka Suzuki, Gianni Ciofani
Mild heat stimulation of muscle cells within the physiological range represents an intriguing approach for the modulation of their functions. In this work, photothermal conversion was exploited to remotely stimulate striated muscle cells by using gold nanoshells (NS) in combination with near-infrared (NIR) radiation. Temperature increments of approximately 5°C were recorded by using an intracellular fluorescent molecular thermometer and were demonstrated to efficiently induce myotube contraction. The mechanism at the base of this phenomenon was thoroughly investigated and was observed to be a Ca2+-independent event directly involving actin-myosin interactions...
January 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28107265/long-term-function-after-pediatric-critical-illness-results-from-the-survivor-outcomes-study
#6
Neethi P Pinto, Elizabeth W Rhinesmith, Tae Yeon Kim, Peter H Ladner, Murray M Pollack
OBJECTIVE: Knowledge of the long-term outcomes of survivors of pediatric critical illness is sparse but important. The aim of this study was to evaluate morbidity and mortality 6 months and 3 years after hospital discharge. DESIGN: Prospective cohort study. SETTING: Urban, inner city, academic PICU. PATIENTS: Consecutive patients admitted to the PICU from June 2012 to August 2012. INTERVENTIONS: None...
January 19, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28107166/a-new-strategy-for-calculating-the-risk-of-ovarian-malignancy-algorithm-roma
#7
Tae-Dong Jeong, Eun-Jung Cho, Dae-Hyun Ko, Woochang Lee, Sail Chun, Hi Jeong Kwon, Ki-Sook Hong, Yong-Man Kim, Won-Ki Min
BACKGROUND: Reliable quantitative measurements of HE4 and CA125 levels are required to calculate the risk of ovarian malignancy algorithm (ROMA) value. We suggest a new reporting strategy for interpreting ROMA values based on analytical measurement range (AMR) and qualified-intervals of the HE4 and CA125 results. METHODS: HE4 and CA125 assays from Abbott and Roche were used. The AMRs and the qualified-intervals were as follows: Architect HE4 assay, 20-1500 and 17...
January 20, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28106735/mass-spectrometry-based-metabolomic-and-lipidomic-analyses-of-the-effects-of-dietary-platycodon-grandiflorum-on-liver-and-serum-of-obese-mice-under-a-high-fat-diet
#8
Hye Min Park, Kab-Tae Park, Edmond Changkyun Park, Seung Ii Kim, Myung Sook Choi, Kwang-Hyeon Liu, Choong Hwan Lee
We aimed to identify metabolites involved in the anti-obesity effects of Platycodon grandiflorum (PG) in high-fat diet (HFD)-fed mice using mass spectrometry (MS)-based metabolomic techniques. C57BL/6J mice were divided into four groups: normal diet (ND)-fed mice, HFD-fed mice, HFD with 1% PG extract-fed mice (HPGL), and HFD with 5% PG extract-fed mice (HPGH). After 8 weeks, the HFD group gained more weight than the ND group, while dietary 5% PG extract attenuated this change. The partial least squares discriminant analysis (PLS-DA) score plots showed a clear distinction between experimental groups in serum and liver markers...
January 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28106213/tunable-uv-visible-absorption-of-sns2-layered-quantum-dots-produced-by-liquid-phase-exfoliation
#9
Xiao Fu, P Ilanchezhiyan, G Mohan Kumar, Hak Dong Cho, Lei Zhang, A Sattar Chan, Dong J Lee, Gennady N Panin, Tae Won Kang
4H-SnS2 layered crystals synthesized by a hydrothermal method were used to obtain via liquid phase exfoliation quantum dots (QDs), consisting of a single layer (SLQDs) or multiple layers (MLQDs). Systematic downshift of the peaks in the Raman spectra of crystals with a decrease in size was observed. The bandgap of layered QDs, estimated by UV-visible absorption spectroscopy and the tunneling current measurements using graphene probes, increases from 2.25 eV to 3.50 eV with decreasing size. 2-4 nm SLQDs, which are transparent in the visible region, show selective absorption and photosensitivity at wavelengths in the ultraviolet region of the spectrum while larger MLQDs (5-90 nm) exhibit a broad band absorption in the visible spectral region and the photoresponse under white light...
January 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28105994/angiographic-outcomes-of-orsiro-biodegradable-polymer-sirolimus-eluting-stents-and-resolute-integrity-durable-polymer-zotarolimus-eluting-stents-results-of-the-orient-trial
#10
Si-Hyuck Kang, Woo-Young Chung, Joo Myung Lee, Jin-Joo Park, Chang-Hwan Yoon, Jung-Won Suh, Young-Seok Cho, Joon-Hyung Doh, Jin Man Cho, Jang-Whan Bae, Tae-Jin Youn, In-Ho Chae
AIMS: We performed a randomised controlled open-label non-inferiority trial to compare angiographic outcomes between the ultra-thin strut, biodegradable hybrid polymer Orsiro sirolimus-eluting stent (O-SES) and the durable biocompatible polymer Resolute Integrity zotarolimus-eluting stent (R-ZES). METHODS AND RESULTS: A total of 372 patients planned to undergo percutaneous coronary revascularisation were randomly assigned 2:1 to treatment with O-SES or R-ZES (250 and 122 patients, respectively)...
January 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28104896/the-role-of-endoscopic-biliary-drainage-without-sphincterotomy-in-gallstone-patients-with-cholangitis-and-suspected-common-bile-duct-stones-not-detected-by-cholangiogram-or-intraductal-ultrasonography
#11
Hyeon Jeong Goong, Jong Ho Moon, Yun Nah Lee, Hyun Jong Choi, Seo-Youn Choi, Moon Han Choi, Min Jin Kim, Tae Hoon Lee, Sang-Heum Park, Hae Kyung Lee
Background/Aims: Treatment for cholangitis without common bile duct (CBD) stones has not been established in patients with gallstones. We investigated the usefulness of endoscopic biliary drainage (EBD) without endoscopic sphincterotomy (EST) in patients diagnosed with gallstones and cholangitis without CBD stones by endoscopic retrograde cholangiopancreatography (ERCP) and intraductal ultrasonography (IDUS). Methods: EBD using 5-F plastic stents without EST was performed prospectively in patients with gallstones and cholangitis if CBD stones were not diagnosed by ERCP and IDUS...
January 20, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28104837/the-role-of-dimer-asymmetry-and-protomer-dynamics-in-enzyme-catalysis
#12
Tae Hun Kim, Pedram Mehrabi, Zhong Ren, Adnan Sljoka, Christopher Ing, Alexandr Bezginov, Libin Ye, Régis Pomès, R Scott Prosser, Emil F Pai
Freeze-trapping x-ray crystallography, nuclear magnetic resonance, and computational techniques reveal the distribution of states and their interconversion rates along the reaction pathway of a bacterial homodimeric enzyme, fluoroacetate dehalogenase (FAcD). The crystal structure of apo-FAcD exhibits asymmetry around the dimer interface and cap domain, priming one protomer for substrate binding. This asymmetry is dynamically averaged through conformational exchange on a millisecond time scale. During catalysis, the protomer conformational exchange rate becomes enhanced, the empty protomer exhibits increased local disorder, and water egresses...
January 20, 2017: Science
https://www.readbyqxmd.com/read/28104809/gpnmb-promotes-proliferation-of-developing-eosinophils
#13
Sae Mi Hwang, Jin Hyun Kang, Bo Kyum Kim, Tae Gi Uhm, Hye Jung Kim, Hyune-Hwan Lee, Bert Binas, Il Yup Chung
Glycoprotein non-metastatic melanoma protein B (GPNMB) is a type I transmembrane protein that is expressed in a wide variety of cell types, including hematopoietic lineages. We previously demonstrated that GPNMB is one of the most highly expressed genes at an early and intermediate stage of eosinophil development. We herein examined GPNMB expression and its possible functional effect using cord blood (CB) CD34(+) hematopoietic stem cells differentiating toward eosinophils during a 24-day culture period. Western blot and confocal microscopy analyses showed that GPNMB reached its highest levels at day 12 with most GPNMB-positive cells also expressing major basic protein 1 (MBP1), an eosinophil granule protein...
January 18, 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/28103485/evaluation-of-the-adhesion-on-the-nano-scaled-polymeric-film-systems
#14
Tae Sung Park, Ik Keun Park, Sanichiro Yoshida
We applied scanning acoustic microscopy known as the V(z) curve technique to photoresist thin-film systems for the evaluation of the adhesive strength at the film-substrate interface. Through the measurement of the SAW (Surface Acoustic Wave) velocity, the V(z) curve analysis allows us to quantify the stiffness of the film-substrate interface. In addition, we conducted a nano-scratch test to quantify the ultimate strength of the adhesion through the evaluation of the critical load. To vary the adhesive conditions, we prepared thin-film specimens with three different types of pre-coating surface treatments, i...
December 31, 2016: Ultrasonics
https://www.readbyqxmd.com/read/28103433/baseline-extent-of-damage-predicts-spinal-radiographic-progression-in-korean-patients-with-ankylosing-spondylitis-treated-with-golimumab
#15
Jeong Seok Lee, Yeong Wook Song, Tae Hwan Kim, Won Tae Jung, Seung Geun Lee, Sung Hwan Park, Gwan Gyu Song, Dae Young Yu, Stephen Xu, Eun Young Lee
Background/Aims: For patients with ankylosing spondylitis (AS), golimumab has consistent efficacy in controlling disease activity over 5 years but its benefit in preventing radiographic progression was less clear at 4 years. To predict radiographic progression, we analyzed the baseline characteristics of AS patients in a Korean population. Methods: Sixty-eight Korean patients with AS participated in the phase 3, multicenter, randomized, placebo-controlled, double-blind trial (GO-RAISE) which has previously been described...
January 20, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28101634/is-the-arthroscopic-suture-bridge-technique-suitable-for-full-thickness-rotator-cuff-tears-of-any-size
#16
Sung Hyun Lee, Jeong Woo Kim, Tae Kyun Kim, Seok Hyun Kweon, Hong Je Kang, Se Jin Kim, Jin Sung Park
PURPOSE: The purpose of this study was to compare functional outcomes and tendon integrity between the suture bridge and modified tension band techniques for arthroscopic rotator cuff repair. METHODS: A consecutive series of 128 patients who underwent the modified tension band (MTB group; 69 patients) and suture bridge (SB group; 59 patients) techniques were enrolled. The pain visual analogue scale (VAS), Constant, and American Shoulder and Elbow Surgeons (ASES) scores were determined preoperatively and at the final follow-up...
January 18, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28101483/intermittent-theta-slowings-in-contralateral-side-of-weakness-after-sleep-deprivation-on-spot-eeg-in-sporadic-hemiplegic-migraine
#17
Chan-Hyuk Lee, Man-Wook Seo, Byoung-Soo Shin, Tae-Ho Yang, Hyun-June Shin, Han Uk Ryu
Hemiplegic migraine (HM) is an uncommon type of migraine which is classified into sporadic and familial subtype. The noticed electroencephalogram (EEG) findings during HM attack are diffuse slowing contralateral to the weakened limb, but are usually normal in asymptomatic states. A 52-year-old woman who suffered from headache accompanying right arm weakness and aphasic symptoms admitted to our hospital. She underwent total five times of EEG including 2 times before admission. Only the last EEG exam after 24 hours of sleep deprivation (SD) showed intermittent slowing and higher amplitude of positive occipital sharp transients (POSTs) on the left parieto-occipital area...
December 2016: Journal of Epilepsy Research
https://www.readbyqxmd.com/read/28101477/change-of-patient-selection-strategy-and-improved-surgical-outcome-in-mri-negative-neocortical-epilepsy
#18
Hye-Jin Moon, Dong Wook Kim, Chun-Kee Chung, Jung-Won Shin, Jangsup Moon, Bong Su Kang, Soon-Tae Lee, Keun-Hwa Jung, Kon Chu, Ki-Young Jung, Yong Won Cho, Sang Kun Lee
BACKGROUND AND PURPOSE: It is crucial to make selection strategy to identify surgical candidates among medically refractory MRI-negative neocortical epilepsy patients. In our previous study, we suggested two or more concordance between noninvasive studies (EEG, ictal scalp EEG, interictal FDG-PET, and SPECT) as a new patient selection strategy for MRI-negative neocortical epilepsy surgery. The objective of this study was to evaluate the surgical outcomes of MRI-negative neocortical epilepsy patients before and after the implementation of a new selection strategy...
December 2016: Journal of Epilepsy Research
https://www.readbyqxmd.com/read/28101474/the-laboratory-diagnosis-of-autoimmune-encephalitis
#19
REVIEW
Sang Kun Lee, Soon-Tae Lee
Autoimmune encephalitis is a group of encephalitis syndromes that cause altered mentality, memory decline, or seizures in association with the presence of serum and cerebrospinal fluid (CSF) autoantibodies (auto-Abs). An early diagnosis enables early treatments. The detection of auto-Abs is a confirmatory diagnosis. Tissue-based assay, cell-based immunoassay, and immunoblotting are used to detect various autoantibodies. The CSF test for the presence of antibodies is important because it is more sensitive and reflects disease activity in many autoimmune encephalitis, although antibody tests can be negative even in the presence of autoimmune encephalitis...
December 2016: Journal of Epilepsy Research
https://www.readbyqxmd.com/read/28101125/preventive-transarterial-embolization-in-upper-nonvariceal-gastrointestinal-bleeding
#20
Aleksejs Kaminskis, Aina Kratovska, Sanita Ponomarjova, Anna Tolstova, Maksims Mukans, Solvita Stabiņa, Raivis Gailums, Andrejs Bernšteins, Patricija Ivanova, Viesturs Boka, Guntars Pupelis
BACKGROUND: Transarterial embolization (TAE) is a therapeutic option for patients with a high risk of recurrent bleeding after endoscopic haemostasis. The aim of our prospective study was a preliminary assessment of the safety, efficacy, and clinical outcomes following preventive TAE in patients with non-variceal acute upper gastrointestinal bleeding (NVUGIB) with a high risk of recurrent bleeding after endoscopic haemostasis. METHODS: Preventive visceral angiography and TAE were performed after endoscopic haemostasis on patients with NVUGIB who were at a high risk of recurrent bleeding (PE+ group)...
2017: World Journal of Emergency Surgery: WJES
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