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https://www.readbyqxmd.com/read/29045058/loop-mediated-isothermal-amplification-lamp-as-an-alternative-to-pcr-a-rapid-on-site-detection-of-gene-doping
#1
Olivier Salamin, Tiia Kuuranne, Martial Saugy, Nicolas Leuenberger
Innovation in medical research has been diverted at multiple occasions to enhance human performance. The predicted great progress in gene therapy has raised some concerns regarding its misuse in the world of sports (gene doping) for several years now. Even though there is no evidence that gene doping has ever been used in sports, the continuous improvement of gene therapy techniques increases the likelihood of abuse. Therefore, since 2004, efforts have been invested by the anti-doping community and WADA for the development of detection methods...
October 17, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29044473/induced-pluripotent-stem-cells-from-ovarian-tissue
#2
Sophia Salas, Nicholas Ng, Behzad Gerami-Naini, Raymond M Anchan
Yamanaka and colleagues revolutionized stem cell biology and regenerative medicine by observing that somatic cells can be reprogrammed into pluripotent stem cells. Evidence indicates that induced pluripotent stem (iPS) cells retain epigenetic memories that bias their spontaneous differentiation into the originating somatic cell type, therefore epigenetic memory may be exploited to improve tissue specific regeneration. We recently showed that iPS cells reprogrammed from ovarian granulosa cells using mouse and human tissue overwhelmingly differentiate homotypically into ovarian steroidogenic and primordial germ cells...
October 18, 2017: Current Protocols in Human Genetics
https://www.readbyqxmd.com/read/29044340/renouncement-of-renal-replacement-therapy-withdrawal-and-refusal
#3
José Andrade Moura, Ana Flávia de Souza Moura, José Hermógenes Rocco Suassuna
Renouncement of renal replacement therapy (RRT) is a medical dilemma. This review covers the concept, the magnitude, the prognosis, and discusses strategies and management approaches about this subject in patients with CKD and AKI. Evidence suggests that refusal is more frequent and carries a more guarded prognosis than withdrawal of RRT. When RRT is not expected to be beneficial in terms of survival or quality of life, conservative treatment and palliative care are alternatives. We review the historical evolution of guidelines about renouncement of RRT and palliative care, and highlight the absence of specific recommendations in Brazil...
July 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29044326/in-vitro-antiparasitic-activity-and-chemical-composition-of-the-essential-oil-from-protium-ovatum-leaves-burceraceae
#4
Elisângela B B Estevam, Isabella P B DE Deus, Vanessa P DA Silva, Elizabeth A J DA Silva, Cassia C F Alves, José Milton Alves, Cristiane M Cazal, Lizandra G Magalhães, Mariana C Pagotti, Viviane R Esperandim, Alex F Souza, Mayker L D Miranda
Leishmaniasis and trypanosomiasis are globally widespread parasitic diseases which have been responsible for high mortality rates. Since drugs available for their treatment are highly hepatotoxic, nephrotoxic and cardiotoxic, adherence to therapy has been affected. Thus, the search for new, more effective and safer drugs for the treatment of these diseases is necessary. Natural products have stood out as an alternative to searching for new bioactive molecules with therapeutic potential. In this study, the chemical composition and antiparasitic activity of the essential oil from Protium ovatum leaves against trypomastigote forms of Trypanosoma cruzi and the promastigote forms of Leishmania amazonensis were evaluated...
October 16, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29043803/identification-of-privileged-antichlamydial-natural-products-by-a-ligand-based-strategy
#5
Elina Karhu, Janne Isojärvi, Pia Vuorela, Leena Hanski, Adyary Fallarero
The obligate intracellular pathogen Chlamydia pneumoniae remains a difficult target for antimicrobial therapy. Owing to the permeability barrier placed by bacterial and host vacuolar membranes, as well as the propensity of the bacterium for persistent infections, treatment failures are common. Despite the urgent need for new antichlamydial compounds, their discovery is challenged by the technically demanding assay procedures and lack of validated targets. An alternative strategy of using naturally occurring compounds and their derivatives against C...
October 18, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/29043465/comparison-of-strain-imaging-techniques-in-crt-candidates-cmr-tagging-cmr-feature-tracking-and-speckle-tracking-echocardiography
#6
Wouter M van Everdingen, Alwin Zweerink, Robin Nijveldt, Odette A E Salden, Mathias Meine, Alexander H Maass, Kevin Vernooy, Frederik J De Lange, Albert C van Rossum, Pierre Croisille, Patrick Clarysse, Bastiaan Geelhoed, Michiel Rienstra, Isabelle C Van Gelder, Marc A Vos, Cornelis P Allaart, Maarten J Cramer
Parameters using myocardial strain analysis may predict response to cardiac resynchronization therapy (CRT). As the agreement between currently available strain imaging modalities is unknown, three different modalities were compared. Twenty-seven CRT-candidates, prospectively included in the MARC study, underwent cardiac magnetic resonance (CMR) imaging and echocardiographic examination. Left ventricular (LV) circumferential strain was analysed with CMR tagging (CMR-TAG), CMR feature tracking (CMR-FT), and speckle tracking echocardiography (STE)...
October 17, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29043356/cationic-amphiphilic-zn-porphyrin-with-high-antifungal-photodynamic-potency
#7
Sara Moghnie, Artak Tovmasyan, James Craik, Ines Batinic-Haberle, Ludmil Benov
Photodynamic therapy (PDT) is a promising alternative approach particularly attractive for treatment of localized fungal infections. It is based on compounds, photosensitizers (PSs), which when excited with visible light, generate reactive species that ultimately cause cell death. Such species have short lifespans; as a consequence, efficiency and selectivity of the PDT treatment depend mainly on the properties of the PSs. This study is the first to explore the effect of cationic porphyrin-based photosensitizers on Saccharomyces cerevisiae, a member of the fungus kingdom...
October 18, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/29043319/triple-function-nanocomposites-of-porous-silica-cofe2o4-mwcnts-as-a-carrier-for-ph-sensitive-anti-cancer-drug-controlled-delivery
#8
Huitao Fan, Xiaojing Xing, Yuhan Yang, Bo Li, Congcong Wang, Dongfang Qiu
Cobalt ferrite nanoparticles loaded on multiwalled carbon nanotube (MWCNT) magnetic hybrids have been demonstrated to be promising magnetic resonance imaging contrast agents and drug carriers. However, the hydrophobic, less biocompatible characteristics and low loading capacity for the drug hamper their wide biological applications. To solve the above problem, an alternative strategy is to coat the MWCNTs@CoFe2O4 nanoparticles with a mesoporous silica (mSiO2) shell. Herein, the reasonable fabrication process results in successful coating mSiO2 on the as-obtained MWCNTs@CoFe2O4 nanoparticles, forming well-defined core-shell-structured MWCNTs@CoFe2O4@mSiO2 nanocomposites...
October 18, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29042957/ursolic-acid-inhibits-breast-cancer-growth-by-inhibiting-proliferation-inducing-autophagy-and-apoptosis-and-suppressing-inflammatory-responses-via-the-pi3k-akt-and-nf-%C3%AE%C2%BAb-signaling-pathways-in-vitro
#9
Juan Luo, Yan-Ling Hu, Hong Wang
Breast cancer, which is the second leading cause of cancer-associated mortality in women worldwide, develops from breast tissue. Chemotherapy is the most commonly used therapy to treat breast cancer. However, a number of natural plant-derived products have been suggested as alternative therapies to treat different types of cancer, such as breast cancer. The aim of the present study was to determine the anti-tumor effects of ursolic acid and its effect on apoptosis and inflammation in breast cancer cells. The anti-cancer effects of ursolic acid were evaluated in vitro using flow cytometry, western blotting and reverse transcription-quantitative polymerase chain reaction...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29042870/update-of-minimally-invasive-surfactant-therapy
#10
REVIEW
Gyu-Hong Shim
To date, preterm infants with respiratory distress syndrome (RDS) after birth have been managed with a combination of endotracheal intubation, surfactant instillation, and mechanical ventilation. It is now recognized that noninvasive ventilation (NIV) such as nasal continuous positive airway pressure (CPAP) in preterm infants is a reasonable alternative to elective intubation after birth. Recently, a meta-analysis of large controlled trials comparing conventional methods and nasal CPAP suggested that CPAP decreased the risk of the combined outcome of bronchopulmonary dysplasia or death...
September 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/29042864/recent-advances-in-pediatric-interventional-cardiology
#11
REVIEW
Seong-Ho Kim
During the last 10 years, there have been major technological achievements in pediatric interventional cardiology. In addition, there have been several advances in cardiac imaging, especially in 3-dimensional imaging of echocardiography, computed tomography, magnetic resonance imaging, and cineangiography. Therefore, more types of congenital heart diseases can be treated in the cardiac catheter laboratory today than ever before. Furthermore, lesions previously considered resistant to interventional therapies can now be managed with high success rates...
August 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/29042836/evaluation-of-the-effects-of-extracorporeal-membrane-oxygenation-on-antiepileptic-drug-serum-concentrations-in-pediatric-patients
#12
Nicholas O Dillman, Mindl M Messinger, Kimberly N Dinh, Jennifer L Placencia, Brady S Moffett, Milenka Cuevas Guaman, Jennifer C Erklauer, Jeffrey R Kaiser, Angus A Wilfong
OBJECTIVES: Patients supported on extracorporeal membrane oxygenation (ECMO) have an increased incidence of seizures. Phenobarbital (PB) and fosphenytoin (fos-PHT) are common antiepileptic drugs (AEDs) used to manage seizures in the pediatric population; however, it is unknown what effect ECMO has on the serum concentrations of AEDs. The purpose of this study is to evaluate the effect of ECMO on AED serum concentrations. METHODS: A retrospective, matched-cohort study was performed in patients younger than 18 years who received ECMO and were treated with intravenous (IV) PB or fos-PHT at Texas Children's Hospital between 2004 and 2014...
September 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/29042788/decreased-frequency-of-adenoidectomy-by-a-12-week-nasal-budesonide-treatment
#13
Haiyu Hong, Fenghong Chen, Xiaobin Zheng, Wei Liao, Zhenpeng Liao, Yujie Cao, Haixin He, Zhe Zhu, Yunping Fan
OBJECTIVE: There is little evidence on the role of topical budesonide in reducing the frequency of adenoidectomy, although it was reported that topical budesonide can effectively ameliorate the symptoms of adenoid hypertrophy (AH). This study was aimed to investigate the possibility and safety of alternatives to adenoidectomy with a 12-week treatment with nasal budesonide. MATERIALS AND METHODS: One hundred patients with AH were randomized to receive either a double-blind budesonide (1 mg once daily) or placebo treatment for 2 weeks by transnasal nebulization...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29042704/alternative-to-rituximab-therapy-for-a-patient-with-ankylosing-spondylitis-who-was-unable-to-continue-anti-tnf-therapy
#14
Eri Katsuyama, Hiroshi Wakabayashi, Ken-Ei Sada, Sumie Hiramatsu, Yoshia Miyawaki, Michiko Morishita, Keiji Ohashi, Haruki Watanabe, Takayuki Katsuyama, Sonia Zeggar, Mariko Narazaki, Noriko Tatebe, Katsue Sunahori-Watanabe, Tomoko Kawabata, Jun Wada
We herein present a case of a 38-year-old man who had bamboo spine and severe sacroiliitis and who was diagnosed with ankylosing spondylitis (AS). Infliximab (IFX) markedly improved the axial symptom but was discontinued due to the side effect of peripheral neuropathy. Switching from IFX to etanercept worsened the side effect. Rituximab (RTX) administration elicited a good response without side effects. RTX might be a suitable option for AS therapy when TNF inhibitors are difficult to use.
October 2017: Acta Medica Okayama
https://www.readbyqxmd.com/read/29042423/low-prevalence-of-inappropriate-shocks-in-patients-with-inherited-arrhythmia-syndromes-with-the-subcutaneous-implantable-defibrillator-single-center-experience-and-long-term-follow-up
#15
Boris Rudic, Erol Tülümen, Veronika Berlin, Susanne Röger, Ksenija Stach, Volker Liebe, Ibrahim El-Battrawy, Christina Dösch, Theano Papavassiliu, Ibrahim Akin, Martin Borggrefe, Jürgen Kuschyk
BACKGROUND: Up to 40% of patients with transvenous implantable cardioverter-defibrillator (ICD) experience lead-associated complications and may suffer from high complication rates when lead extraction is indicated. Subcutaneous ICD may represent a feasible alternative; however, the efficacy of the subcutaneous ICD in the detection and treatment of ventricular arrhythmias in patients with hereditary arrhythmia syndromes has not been fully evaluated. METHODS AND RESULTS: Patients with primary hereditary arrhythmia syndromes who fulfilled indication for defibrillator placement were eligible for enrollment...
October 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29042405/sterol-methyltransferase-a-target-for-anti-amoeba-therapy-towards-transition-state-analog-and-suicide-substrate-drug-design
#16
Medhanie E Kidane, Boden H Vanderloop, Wenxu Zhou, Crista D Thomas, Emilio Ramos, Ujjal Singha, Minu Chaudhuri, W David Nes
Ergosterol biosynthesis pathways essential to pathogenic protozoa growth (Haubrich, B. A. et al. 2015. J. Lipid Res. 56: 331-341) and absent from the human host offer new chokepoint targets. Here, we present characterization and cell-based interference of Acanthamoeba spp sterol 24/28methylases (SMT) that catalyze the committed step in C28- and C29-sterol synthesis. Intriguingly, our kinetic analyses suggest 24SMT prefers plant cycloartenol while 28SMT prefers 24(28)methylene lophenol in similar fashion to the substrate preferences of land plant SMT1 and SMT2...
October 17, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/29042094/ustekinumab-to-treat-crohn-s-disease
#17
Javier P Gisbert, María Chaparro
Ustekinumab is a monoclonal antibody directed against the p40 subunit, which is part of interleukins IL-12 and IL-23. The efficacy of ustekinumab versus placebo in terms of clinical response and remission of induction has been shown in phase3 clinical trials. When used as subcutaneous maintenance therapy, the therapeutic benefit of ustekinumab over placebo has been confirmed in both clinical response and remission in patients who have responded clinically to induction therapy. In addition, ustekinumab has demonstrated an improvement in mucosal healing parameters...
October 14, 2017: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/29040633/prevalence-of-pre-antiretroviral-treatment-drug-resistance-by-gender-age-and-other-factors-in-hiv-infected-individuals-initiating-therapy-in-kenya-2013-2014
#18
Rachel A Silverman, Ingrid A Beck, Catherine Kiptinness, Molly Levine, Ross Milne, Christine J McGrath, Steve Bii, Barbra A Richardson, Grace John-Stewart, Bhavna Chohan, Samah R Sakr, James N Kiarie, Lisa M Frenkel, Michael H Chung
Background: Pre-antiretroviral-treatment drug resistance (PDR) is a predictor of HIV treatment failure. We determined PDR-prevalence and correlates in a Kenyan cohort. Methods: We conducted a cross-sectional analysis of antiretroviral (ARV) treatment-eligible HIV-infected participants in 2013-2014 at three clinics. PDR was defined as ≥2% mutant-frequency in a participant's HIV-quasispecies at pol codons K103N, Y181C, G190A, M184 V, or K65R by oligonucleotide ligation assay...
October 10, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29040595/a-comparison-of-levofloxacin-and-oral-third-generation-cephalosporins-as-antibacterial-prophylaxis-in-acute-leukaemia-patients-during-chemotherapy-induced-neutropenia
#19
Kristyn E Yemm, Jason N Barreto, Kristin C Mara, Ross A Dierkhising, Naseema Gangat, Pritish K Tosh
Background: There is demonstrated benefit with fluoroquinolones as infection prophylaxis in neutropenic patients; however, side effects, drug interactions and increasing resistance necessitate investigation of alternative therapies. Objectives: To compare the incidence of febrile neutropenia in high-risk patients with haematological malignancy receiving a fluoroquinolone with those receiving an oral third-generation cephalosporin (OTGC) as antibacterial prophylaxis during chemotherapy-induced neutropenia...
October 11, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29040457/treatment-of-chronic-q-fever-clinical-efficacy-and-toxicity-of-antibiotic-regimens
#20
S E van Roeden, C P Bleeker-Rovers, M J A de Regt, L M Kampschreur, A I M Hoepelman, P C Wever, J J Oosterheert
Background: Evidence on effectivity of first line treatment for chronic Q fever, tetracyclines (TET) plus hydroxychloroquine (HCQ), and potential alternatives is scarce. Methods: We performed a retrospective, observational cohort study to assess efficacy of treatment with TET plus quinolones (QNL), TET plus QNL plus HCQ, QNL monotherapy or TET monotherapy compared to TET plus HCQ in chronic Q fever patients. We used a time-dependent Cox proportional hazards model to assess our primary (all-cause mortality) and secondary outcomes (first disease-related event and therapy failure)...
October 10, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
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