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https://www.readbyqxmd.com/read/27933736/structural-insight-into-the-anti-prion-compound-inhibition-mechanism-of-native-prion-folding-over-misfolding
#1
Jiwon Choi, Rajiv Gandhi Govindaraj, Jae Wook Hyeon, Kyungro Lee, SongLing Ma, Su Yeon Kim, Jeongmin Lee, Kyoung Tai No
Transition of a physiological folded prion (PrP(C) ) into a pathogenic misfolded prion (PrP(S)(c) ) causes lethal neurodegenerative disorders and prion diseases. Anti-prion compounds have been developed to prevent this conversion; however, their mechanism of action remains unclear. Recently, we reported two anti-prion compounds, BMD29 and 35, identified by in silico and in vitro screening. In this study, we used extensive explicit-solvent molecular dynamics simulations to investigate ligand binding inhibition by anti-prion compounds in prion folding over misfolding behavior at acidic pH...
December 9, 2016: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/27933686/risk-of-incident-mycobacterium-tuberculosis-infection-in-patients-with-inflammatory-bowel-disease-a-nationwide-population-based-study-in-south-korea
#2
S N Hong, H J Kim, K H Kim, S-J Han, I M Ahn, H S Ahn
BACKGROUND: The low incidence of Mycobacterium tuberculosis infection and lack of adequate controls have prevented researchers from estimating tuberculosis (TB) risk in inflammatory bowel disease (IBD) patients. AIM: To evaluate the risk of incident TB among IBD patients. METHODS: Using the 2011-2013 data of the South Korean National Health Insurance (NHI) system, we calculated the incidence rates (IRs), standardised incidence ratio (SIR) and number needed to screen (NNS) for incident TB in IBD patients compared to the general population in terms of subtype, age, gender and IBD medications...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27933679/supplementation-with-nutrients-modulating-insulin-like-growth-factor-1-negatively-correlated-with-changes-in-the-levels-of-pro-inflammatory-cytokines-in-community-dwelling-elderly-people-at-risk-of-undernutrition
#3
M Kim, M Kim, Y J Lee, H J Song, J K Shim, D H Chang, W K Yu, S-H Lee, J H Lee
BACKGROUND: Suboptimal nutrition accompanied by chronic low-grade increases in circulating cytokine levels is more common in elderly people. We explored the improvement in nutritional status, especially in the level of insulin-like growth factor-1 (IGF-1) and its relationship with changes in circulating cytokine levels, after providing extra protein and energy content to community-dwelling older adults at risk of undernutrition. METHODS: Sixty nondiabetic subjects, aged ≥65 years and living independently in a community for elderly people, with a serum pre-albumin level ≤30 mg dL(-1) and a body mass index <25 kg m(-2) , were recruited...
December 9, 2016: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/27933610/resilience-mediates-impact-of-some-childhood-maltreatment-on-post-traumatic-stress-symptoms-in-conscripted-marines-in-the-republic-of-korea
#4
Heejung Kim, Sun Ah Kim, Seongsook Kong
Although it is known that post-traumatic stress symptoms (PTSS) can result from military service, the variance in PTSS unexplained by military service warrants further investigation, and no researchers have investigated South Korean Marines' vulnerability during their 2-year conscripted service as the first line of national defense against threats from North Korea. This study was designed to examine whether resilience mediated the relationship between childhood maltreatment and PTSS in 169 Korean conscripts into the Marine Corps...
December 9, 2016: Research in Nursing & Health
https://www.readbyqxmd.com/read/27933450/effects-of-exercise-intervention-in-breast-cancer-patients-is-mobile-health-mhealth-with-pedometer-more-effective-than-conventional-program-using-brochure
#5
Kyeong Eun Uhm, Ji Sung Yoo, Seung Hyun Chung, Jong Doo Lee, Ilkyun Lee, Joong Il Kim, Se Kyung Lee, Seok Jin Nam, Yong Hyun Park, Ji Youl Lee, Ji Hye Hwang
PURPOSE: To investigate and compare the effects of mobile health (mHealth) and pedometer with conventional exercise program using a brochure on physical function and quality of life (QOL). METHODS: The study was a prospective, quasi-randomized multicenter trial where 356 patients whose cancer treatment had been terminated were enrolled. All patients were instructed to perform a 12-week regimen of aerobic and resistance exercise. The mHealth group received a pedometer and a newly developed smartphone application to provide information and monitor the prescribed exercises...
December 8, 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27933396/totally-laparoscopic-total-gastrectomy-using-the-overlap-method-early-outcomes-of-50-consecutive-cases
#6
Tae-Gyun Lee, In-Seob Lee, Jeong-Hwan Yook, Byung-Sik Kim
BACKGROUND: Construction of an esophagojejunostomy is still a challenging procedure in totally laparoscopic total gastrectomy (TLTG), and there is no standard anastomosing method. The aims of this study were to describe our TLTG with the overlap method using a linear stapler and report surgical outcomes. METHODS: From January 2015 to April 2016, 50 patients underwent TLTG using the overlap method for gastric cancer. The procedures were performed by a single surgeon, and the patients' medical records were reviewed...
December 8, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/27933388/digital-tomosynthesis-as-a-new-diagnostic-tool-for-evaluation-of-spine-damage-in-patients-with-ankylosing-spondylitis
#7
Young Bin Joo, Tae-Hwan Kim, Jina Park, Kyung Bin Joo, Yoonah Song, Seunghun Lee
We aimed to compare digital tomosynthesis (DTS) with radiographs for the assessment of spinal bone damage in patients with ankylosing spondylitis (AS). The study comprised 68 patients with AS who underwent both DTS and radiographs of the cervical and lumbar spine on the same day. Spinal bone damage was assessed using the modified Stoke Ankylosing Spondylitis Spinal Score (mSASSS) and the presence of facet joint damage. The Wilcoxon signed-rank test and McNemar's test were used to compare spinal bone damage between the two modalities...
December 8, 2016: Rheumatology International
https://www.readbyqxmd.com/read/27933299/strategy-to-prime-the-host-and-cells-to-augment-therapeutic-efficacy-of-progenitor-cells-for-patients-with-myocardial-infarction
#8
REVIEW
Jeehoon Kang, Tae-Won Kim, Jin Hur, Hyo-Soo Kim
Cell therapy in myocardial infarction (MI) is an innovative strategy that is regarded as a rescue therapy to repair the damaged myocardium and to promote neovascularization for the ischemic border zone. Among several stem cell sources for this purpose, autologous progenitors from bone marrow or peripheral blood would be the most feasible and safest cell-source. Despite the theoretical benefit of cell therapy, this method is not widely adopted in the actual clinical practice due to its low therapeutic efficacy...
2016: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/27933254/characterization-of-a-novel-hatching-enzyme-purified-from-starfish-asterina-pectinifera
#9
Ji Hoon Choi, Sang Moo Kim
Hatching enzyme is a protease which can degrade the membrane of egg. In this study, a hatching enzyme was purified from starfish (Asterina pectinifera) with 6.34 fold of purification rate, 5.04 % of yield, and 73.87 U/mg of specific activity. The molecular weight of starfish hatching enzyme was 86 kDa, which was reduced to 62 kDa after removal of N-linked oligosaccharides. The optimal pH and temperature of the hatching enzyme activity were pH 7.0 and 40 °C, respectively, while those of stability were pH 8 and 20 °C...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27933208/detection-of-antibodies-to-citrullinated-tenascin-c-in-patients-with-early-synovitis-is-associated-with-the-development-of-rheumatoid-arthritis
#10
Karim Raza, Anja Schwenzer, Maria Juarez, Patrick Venables, Andrew Filer, Chris D Buckley, Kim S Midwood
No abstract text is available yet for this article.
2016: RMD Open
https://www.readbyqxmd.com/read/27933202/screening-and-management-of-viral-hepatitis-and-hepatocellular-carcinoma-in-mongolia-results-from-a-survey-of-mongolian-physicians-from-all-major-provinces-of-mongolia
#11
Yoona A Kim, Jacqueline Estevez, An Le, Dennis Israelski, Oidov Baatarkhuu, Tserenchimed Sarantuya, Sonom Narantsetseg, Pagbajabyn Nymadawa, Richard H Le, Man-Fung Yuen, Geoffrey Dusheiko, Mario Rizzetto, Mindie H Nguyen
BACKGROUND: According to Globocan, Mongolia has the highest worldwide hepatocellular carcinoma (HCC) incidence (78.1/100 000, 3.5× higher than China). AIMS AND METHODS: We conducted an anonymous survey of physicians from major provinces who attended an educational liver symposium, analysing their demography, practice, knowledge, perceptions and proposed solutions. Multivariate logistic regression was used to estimate OR relating demography and practice factors with higher provider knowledge and improvement...
2016: BMJ Open Gastroenterology
https://www.readbyqxmd.com/read/27933141/emergence-of-serotype-k1-klebsiella-pneumoniae-st23-strains-co-producing-the-plasmid-mediated-ampc-beta-lactamase-dha-1-and-an-extended-spectrum-beta-lactamase-in-korea
#12
Hae Suk Cheong, Doo Ryeon Chung, Chaeyoeng Lee, So Hyun Kim, Cheol-In Kang, Kyong Ran Peck, Jae-Hoon Song
BACKGROUND: Serotype K1 Klebsiella pneumoniae has emerged as an important community pathogen causing various infections, including liver abscesses. Although serotype K1 K. pneumoniae community isolates have been reported as susceptible to most classes of antimicrobial agents, a few cases of infection caused by extended-spectrum beta-lactamase (ESBL)-producing serotype K1 K. pneumoniae have recently been reported in Asian countries. We identified three ESBL-producing strains of serotype K1 K...
2016: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/27933081/the-density-and-length-of-root-hairs-are-enhanced-in-response-to-cadmium-and-arsenic-by-modulating-gene-expressions-involved-in-fate-determination-and-morphogenesis-of-root-hairs-in-arabidopsis
#13
Ramin Bahmani, Dong G Kim, Jin A Kim, Seongbin Hwang
Root hairs are tubular outgrowths that originate from epidermal cells. Exposure of Arabidopsis to cadmium (Cd) and arsenic [arsenite, As(III)] increases root hair density and length. To examine the underlying mechanism, we measured the expression of genes involved in fate determination and morphogenesis of root hairs. Cd and As(III) downregulated TTG1 and GL2 (negative regulators of fate determination) and upregulated GEM (positive regulator), suggesting that root hair fate determination is stimulated by Cd and As(III)...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27932996/genetic-regulation-of-endothelial-vasomotor-function
#14
REVIEW
Seung Kyum Kim, Michael P Massett
The endothelium plays an important role in the regulation of vasomotor tone and the maintenance of vascular integrity. Endothelial dysfunction, i.e., impaired endothelial dependent dilation, is a fundamental component of the pathogenesis of cardiovascular disease. Although endothelial dysfunction is associated with a number of cardiovascular disease risk factors, those risk factors are not the only determinants of endothelial dysfunction. Despite knowing many molecules involved in endothelial signaling pathways, the genetic contribution to endothelial function has yet to be fully elucidated...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27932971/evaluation-of-phase-amplitude-coupling-in-resting-state-magnetoencephalographic-signals-effect-of-surrogates-and-evaluation-approach
#15
Bakul Gohel, Sanghyun Lim, Min-Young Kim, Kyung-Min An, Ji-Eun Kim, Hyukchan Kwon, Kiwoong Kim
Phase-amplitude coupling (PAC) plays an important role in neural communication and computation. Interestingly, recent studies have indicated the presence of ubiquitous PAC phenomenon even during the resting state. Despite the importance of PAC phenomenon, estimation of significant physiological PAC is challenging because of the lack of appropriate surrogate measures to control false positives caused by non-physiological PAC. Therefore, in the present study, we evaluated PAC phenomenon during resting-state magnetoencephalography (MEG) signal and considered various surrogate measures and computational approaches widely used in the literature in addition to proposing new ones...
2016: Frontiers in Computational Neuroscience
https://www.readbyqxmd.com/read/27932791/migration-and-invasion-of-drug-resistant-lung-adenocarcinoma-cells-are-dependent-on-mitochondrial-activity
#16
Ji Hoon Jeon, Dong Keon Kim, Youngmi Shin, Hee Yeon Kim, Bomin Song, Eun Young Lee, Jong Kwang Kim, Hye Jin You, Heesun Cheong, Dong Hoon Shin, Seong-Tae Kim, Jae-Ho Cheong, Soo Youl Kim, Hyonchol Jang
A small proportion of cancer cells have stem-cell-like properties, are resistant to standard therapy and are associated with a poor prognosis. The metabolism of such drug-resistant cells differs from that of nearby non-resistant cells. In this study, the metabolism of drug-resistant lung adenocarcinoma cells was investigated. The expression of genes associated with oxidative phosphorylation in the mitochondrial membrane was negatively correlated with the prognosis of lung adenocarcinoma. Because the mitochondrial membrane potential (MMP) reflects the functional status of mitochondria and metastasis is the principal cause of death due to cancer, the relationship between MMP and metastasis was evaluated...
December 9, 2016: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/27932789/the-maintenance-ability-and-ca-2-availability-of-skeletal-muscle-are-enhanced-by-sildenafil
#17
Mei Huang, Keon Jin Lee, Kyung-Jin Kim, Mi Kyoung Ahn, Chung-Hyun Cho, Do Han Kim, Eun Hui Lee
Sildenafil relaxes vascular smooth muscle cells and is used to treat pulmonary artery hypertension as well as erectile dysfunction. However, the effectiveness of sildenafil on skeletal muscle and the benefit of its clinical use have been controversial, and most studies focus primarily on tissues and organs from disease models without cellular examination. Here, the effects of sildenafil on skeletal muscle at the cellular level were examined using mouse primary skeletal myoblasts (the proliferative form of skeletal muscle stem cells) and myotubes, along with single-cell Ca(2+) imaging experiments and cellular and biochemical studies...
December 9, 2016: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/27932777/phototoxicity-of-liposomal-zn-and-al-phthalocyanine-against-cervical-and-oral-squamous-cell-carcinoma-cells-in-vitro
#18
Jason Young, Michael Yee, Hayoung Kim, Jennifer Cheung, Takahiro Chino, Nejat Düzgüneş, Krystyna Konopka
Background Material and Methods Results Conclusions.
December 9, 2016: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/27932655/complete-genome-sequence-of-nitrilotriacetate-degrading-aminobacter-aminovorans-kctc-2477t
#19
Sang-Heon Lee, Hanna Choe, Arshan Nasir, Doo-Sang Park, Kyung Mo Kim
Aminobacter aminovorans is a Gram-negative, pleomorphic rod-shaped, flagellated, and obligately aerobic bacterium that was isolated from soil. Here, we report the complete genome sequence of A. aminovorans KCTC 2477(T), which degrades nitrilotriacetate-metal complexes and iminodiacetate, a metabolic intermediate of nitrilotriacetate.
December 8, 2016: Genome Announcements
https://www.readbyqxmd.com/read/27932651/draft-genome-sequence-of-probiotic-lactobacillus-acidophilus-strain-l-55-isolated-from-a-healthy-human-gut
#20
Yusuke Fujii, Hidehiro Toh, Takehiro Matsubara, Shuta Tomida, Co Thi Kim Nguyen, Iyo Mimura, Shoji Nakamura, Hidetoshi Morita
Probiotic Lactobacillus acidophilus L-55 was isolated from a healthy human gut. Here, we report the draft genome sequence of this organism.
December 8, 2016: Genome Announcements
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