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https://www.readbyqxmd.com/read/28544786/mir-122-modification-enhances-the-therapeutic-efficacy-of-adipose-tissue-derived-mesenchymal-stem-cells-against-liver-fibrosis
#1
Guohua Lou, Ying Yang, Feifei Liu, Bingjue Ye, Zhi Chen, Min Zheng, Yanning Liu
Mesenchymal stem cell (MSC) transplantation alone may be insufficient for treatment of liver fibrosis because of complicated histopathological changes in the liver. Given that miR-122 plays an essential role in liver fibrosis by negatively regulating the proliferation and transactivation of hepatic stellate cells (HSCs), this study investigated whether miR-122 modification can improve the therapeutic efficacy of adipose tissue-derived MSCs in treating liver fibrosis. MiR-122-modified AMSCs (AMSC-122) were constructed through lentivirus-mediated transfer of pre-miR-122...
May 24, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28544569/maintenance-of-the-contractile-phenotype-in-corpus-cavernosum-smooth-muscle-cells-by-myocardin-gene-therapy-ameliorates-erectile-dysfunction-in-bilateral-cavernous-nerve-injury-rats
#2
H-B Zhang, Z-Q Wang, F-Z Chen, W Ding, W-B Liu, Z-R Chen, S-H He, A-Y Wei
The pathophysiology of erectile dysfunction post radical prostatectomy is not clearly clarified, and the low efficacy of traditional PDE5i treatment remains a major complaint in contemporary practice. This study aimed to demonstrate phenotypic modulation in bilateral cavernous nerve injury (BCNI) rats within 7 days, and subsequently validate gene therapy with Myocardin (Mycod) by maintaining a contractile phenotype in corpus cavernosum smooth muscle cells. Initially, 36 male rats were randomly divided into BCNI and negative control (NC) groups for histological and phenotypic molecular measurements at 3, 5, and 7 days...
May 23, 2017: Andrology
https://www.readbyqxmd.com/read/28543610/metallic-nanoparticles-irradiated-by-low-energy-protons-for-radiation-therapy-are-there-significant-physical-effects-to-enhance-the-dose-delivery
#3
Anne-Catherine Heuskin, Bernard Gallez, Olivier Feron, Philippe Martinive, Carine Michiels, Stéphane Lucas
PURPOSE: To identify which physical properties of nanoparticles are correlated to the survival fraction of cells exposed in vitro to low energy protons in combination with nanoparticles. METHODS: The Geant4 simulation toolkit (version 10.3) was used to model nanoparticles of different sizes (5 to 50 nm) and materials (Ti, Zr, Hf, Ta, Au, Pt), with or without an organic capping ensuring biocompatibility and to irradiate them with 1.3 or 4 MeV protons and 5.3 MeV alpha particles...
May 23, 2017: Medical Physics
https://www.readbyqxmd.com/read/28542142/deletion-of-pdcd5-in-mice-led-to-the-deficiency-of-placenta-development-and-embryonic-lethality
#4
Ge Li, Chentong Xu, Xin Lin, Liujing Qu, Dan Xia, Beiqi Hongdu, Yan Xia, Xiaokun Wang, Yaxin Lou, Qihua He, Dalong Ma, Yingyu Chen
Programmed cell death 5 (PDCD5) is an apoptosis promoter molecule that displays multiple biological activities. However, the function of PDCD5 in vivo has not yet been investigated. Here, we generated a Pdcd5 knockout mouse model to study the physiological role of PDCD5 in vivo. Knockout of the Pdcd5 gene resulted in embryonic lethality at mid-gestation. Histopathological analysis revealed dysplasia in both the LZs and JZs in Pdcd5(-/-) placentas with defects in spongiotrophoblasts and trophoblast giant cells...
May 25, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28541656/charge-transfer-and-orbital-level-alignment-at-inorganic-organic-interfaces-the-role-of-dielectric-interlayers
#5
Michael Hollerer, Daniel Lüftner, Philipp Hurdax, Thomas Ules, Serguei Soubatch, Frank Stefan Tautz, Georg Koller, Peter Puschnig, Martin Sterrer, Michael G Ramsey
It is becoming accepted that ultra-thin dielectric layers on metals are not merely passive decoupling layers, but can actively influence orbital energy level alignment and charge transfer at interfaces. As such, they can be important in applications ranging from catalysis to organic electronics. However, the details at the molecular level are still under debate. In this study, we present a comprehensive analysis of the phenomenon of charge transfer promoted by a dielectric interlayer with a comparative study of pentacene adsorbed on Ag(001) with and without an ultra-thin MgO interlayer...
May 25, 2017: ACS Nano
https://www.readbyqxmd.com/read/28541467/global-epidemiology-of-ctx-m-%C3%AE-lactamases-temporal-and-geographical-shifts-in-genotype
#6
Edward R Bevan, Annie M Jones, Peter M Hawkey
Globally, rates of ESBL-producing Enterobacteriaceae are rising. We undertook a literature review, and present the temporal trends in blaCTX-M epidemiology, showing that blaCTX-M-15 and blaCTX-M-14 have displaced other genotypes in many parts of the world. Explanations for these changes can be attributed to: (i) horizontal gene transfer (HGT) of plasmids; (ii) successful Escherichia coli clones; (iii) ESBLs in food animals; (iv) the natural environment; and (v) human migration and access to basic sanitation...
May 25, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28540574/diagnosis-and-management-of-heterotopic-pregnancy-following-embryo-transfer-clinical-analysis-of-55-cases-from-a-single-institution
#7
Jiangtao Lyu, Hong Ye, Weihua Wang, Yi Lin, Wenjie Sun, Li Lei, Lijuan Hao
OBJECTIVE: The aims of this study were to summarize the clinical features of patients with heterotopic pregnancy (HP) following embryo transfer (ET) and explore the risk factors for miscarriage after surgery. METHODS: All patients with HP following ET treated by surgery between August 2014 and August 2015 in Chongqing Health Center for Women and Children were retrospectively reviewed. RESULTS: Fifty-five patients were identified, including 40 with tubal HP, 9 interstitial HP and 6 cornual HP...
May 24, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28540543/impact-of-socioeconomic-and-meteorological-factors-on-reservoirs-air-quality-a-case-in-the-three-gorges-reservoir-of-chongqing-tgrc-china-over-a-10-year-period
#8
Ying Peng, Fengwu Zhou, Jian Cui, Ke Du, Qiangmei Leng, Fumo Yang, Andy Chan, Hongting Zhao
The Three Gorges Dam's construction and industrial transfer have resulted in a new air pollution pattern with the potential to threaten the reservoir eco-environment. To assess the impact of socioeconomic factors on the pattern of air quality vairation and economical risks, concentrations of SO2, NO2, and PM10, industry genres, and meteorological conditions were selected in the Three Gorges Reservoir of Chongqing (TGRC) during 2006-2015. Results showed that air quality had improved to some extent, but atmospheric NO2 showed an increased trend during 2011-2015...
May 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28540475/-intestinal-microbiota-in-individualized-therapies
#9
REVIEW
T Witte, D H Pieper, B Heidrich
During recent years, the analysis of the human microbiota has been receiving more and more scientific focus. Deep sequencing analysis enables characterization of microbial communities in different environments without the need of culture-based methods. Hereby, information about microbial communities is increasing enormously. Numerous studies in humans and animal models revealed the important role of the microbiome in emergence and natural course of diseases such as autoimmune diseases and metabolic disorders, e...
May 24, 2017: Der Internist
https://www.readbyqxmd.com/read/28540379/fundamental-aspects-of-electrochemically-controlled-wetting-of-nanoscale-composite-materials
#10
A Robert Hillman, Karl S Ryder, Hani K Ismail, Asuman Unal, Annelies Voorhaar
Electroactive films based on conducting polymers have numerous potential applications, but practical devices frequently require a combination of properties not met by a single component. This has prompted an extension to composite materials, notably those in which particulates are immobilised within a polymer film. Irrespective of the polymer and the intended application, film wetting is important: by various means, it facilitates transport processes - of electronic charge, charge-balancing counter ions ("dopant") and analyte/reactant molecules - and motion of polymer segments...
May 25, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28539934/stigma-sensitivity-and-the-duration-of-temporary-closure-are-affected-by-pollinator-identity-in-mazus-miquelii-phrymaceae-a-species-with-bilobed-stigma
#11
Xiao-Fang Jin, Zhong-Ming Ye, Grace M Amboka, Qing-Feng Wang, Chun-Feng Yang
A sensitive bilobed stigma is thought to assure reproduction, avoid selfing and promote outcrossing. In addition, it may also play a role in pollinator selection since only pollinators with the appropriate body size can trigger this mechanism. However, no experimental study has investigated how the sensitive stigma responds to different pollinators and its potential effects on pollination. Mazus miquelii (Phrymaceae), a plant with a bilobed stigma was studied to investigate the relationship between stigma behaviors and its multiple insect pollinators...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28539892/the-cross-education-phenomenon-brain-and-beyond
#12
Ashlee M Hendy, Séverine Lamon
Objectives: Unilateral resistance training produces strength gains in the untrained homologous muscle group, an effect termed "cross-education." The observed strength transfer has traditionally been considered a phenomenon of the nervous system, with few studies examining the contribution of factors beyond the brain and spinal cord. In this hypothesis and theory article, we aim to discuss further evidence for structural and functional adaptations occurring within the nervous, muscle, and endocrine systems in response to unilateral resistance training...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28539716/prevention-mechanism-of-2-3-5-4-tetrahydroxy-stilbene-2-o-%C3%AE-d-glucoside-on-lipid-accumulation-in-steatosis-hepatic-l-02-cell
#13
Pei Lin, Jian-Mei Lu, Yan-Fang Wang, Wen Gu, Rong-Hua Zhao, Jie Yu
AIM: 2,3,5,4'-Tetrahydroxy-stilbene-2-O-β-d-glucoside (TSG), a natural stilbene, shows great activities in hepatic lipid regulation, especially for hepatic triglyceride lowering. However, information about its mechanisms on biosynthesis and degradation of triglyceride is still limited. This research pays close attention to clarify the mechanism of TSG on prevention of hepatic lipid accumulation. MATERIALS AND METHODS: TSG was given to steatosis hepatocyte L-02 cell induced by fat emulsion incubation...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28539706/multiple-immunosuppressive-effects-of-cpg-c41-on-intracellular-tlr-mediated-inflammation
#14
Wancheng Liu, Xuejiao Yang, Ning Wang, Shijun Fan, Yuanfeng Zhu, Xinchuan Zheng, Yan Li
A growing body of literature suggests that most chronic autoimmune diseases are associated with inappropriate inflammation mediated by Toll-like receptor (TLR) 3, TLR7/8, or TLR9. Therefore, research into blocking TLR activation to treat these disorders has become a hot topic. Here, we report the immunomodulatory properties of a nonstimulatory CpG-containing oligodeoxynucleotide (CpG-ODN), CpG-c41, which had previously only been known as a TLR9 antagonist. In this study, we found that both in vitro and in vivo CpG-c41 decreased levels of various proinflammatory factors that were induced by single activation or coactivation of intracellular TLRs, but not membrane-bound TLRs, no matter what downstream signal pathways the TLRs depend on...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28538243/bk-virus-as-a-mediator-of-graft-dysfunction-following-kidney-transplantation
#15
Stephanie G Yi, Richard J Knight, Keri E Lunsford
PURPOSE OF REVIEW: BK virus is a significant risk factor for kidney allograft dysfunction and loss among renal transplant recipients. Currently, there is no proven effective treatment except for the reduction of immunosuppression. In this review, we discuss diagnostic challenges and current treatment options for BK in kidney transplant recipients. RECENT FINDINGS: Antiviral and antibiotic therapies have been employed for BK viraemia with variable efficacy. In addition, novel therapeutic regimens such as adoptive transfer of targeted T cells have been described as possible treatment options for recipients with BK nephropathy...
May 22, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28537973/identifying-variability-in-mental-models-within-and-between-disciplines-caring-for-the-cardiac-surgical-patient
#16
Evans K H Brown, Kathleen A Harder, Ioanna Apostolidou, Joyce A Wahr, Douglas C Shook, R Saeid Farivar, Tjorvi E Perry, Mojca R Konia
BACKGROUND: The cardiac operating room is a complex environment requiring efficient and effective communication between multiple disciplines. The objectives of this study were to identify and rank critical time points during the perioperative care of cardiac surgical patients, and to assess variability in responses, as a correlate of a shared mental model, regarding the importance of these time points between and within disciplines. METHODS: Using Delphi technique methodology, panelists from 3 institutions were tasked with developing a list of critical time points, which were subsequently assigned to pause point (PP) categories...
May 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28537713/site-occupancy-preference-and-antithermal-quenching-of-the-bi-2-deep-red-emission-in-%C3%AE-ca2p2o7-bi-2
#17
Liyi Li, Jiangkun Cao, Bruno Viana, Shanhui Xu, Mingying Peng
The resistance to thermal quenching is an essential factor in evaluating the performance of luminescent materials for application in white light emitting diodes (WLEDs). In this work, we studied the site occupancy preference and thermal quenching of luminescence in β-Ca2P2O7:Bi(2+) red phosphor at low (10-300 K) and high temperatures (303-573 K). In β-Ca2P2O7, the host lattice has four different calcium sites, at which Bi(2+)dopant can be located. After comparing the change of bond energy when the Bi(2+) ions are incorporated into the four calcium sites, we found out that Bi(2+) would preferentially occupy the smaller energy variation sites Ci(2) and Ci(1) in this compound, which can be assigned to Bi(2) and Bi(1), respectively...
May 24, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28537249/airway-t-cells-protect-against-rsv-infection-in-the-absence-of-antibody
#18
E Kinnear, L Lambert, J U McDonald, H M Cheeseman, L J Caproni, J S Tregoning
Tissue resident memory T (Trm) cells act as sentinels and early responders to infection. Respiratory syncytial virus (RSV)-specific Trm cells have been detected in the lungs after human RSV infection, but whether they have a protective role is unknown. To dissect the protective function of Trm cells, BALB/c mice were infected with RSV; infected mice developed antigen-specific CD8(+) Trm cells (CD103(+)/CD69(+)) in the lungs and airways. Intranasally transferring cells from the airways of previously infected animals to naïve animals reduced weight loss on infection in the recipient mice...
May 24, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28536558/temperature-and-oxidative-stress-as-triggers-for-virulence-gene-expression-in-pathogenic-leptospira-spp
#19
Tricia Fraser, Paul D Brown
Leptospirosis is a zooanthroponosis aetiologically caused by pathogenic bacteria belonging to the genus, Leptospira. Environmental signals such as increases in temperatures or oxidative stress can trigger response regulatory modes of virulence genes during infection. This study sought to determine the effect of temperature and oxidative stress on virulence associated genes in highly passaged Leptospira borgpeterseneii Jules and L. interrogans Portlandvere. Bacteria were grown in EMJH at 30°C, 37°C, or at 30°C before being transferred to 37°C...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28536094/using-beta-version-mhealth-technology-for-team-based-care-management-to-support-stroke-prevention-an-assessment-of-utility-and-challenges
#20
Magaly Ramirez, Shinyi Wu, Gery Ryan, Amytis Towfighi, Barbara G Vickrey
BACKGROUND: Beta versions of health information technology tools are needed in service delivery models with health care and community partnerships to confirm the key components and to assess the performance of the tools and their impact on users. We developed a care management technology (CMT) for use by community health workers (CHWs) and care managers (CMs) working collaboratively to improve risk factor control among recent stroke survivors. The CMT was expected to enhance the efficiency and effectiveness of the CHW-CM team...
May 23, 2017: JMIR Research Protocols
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