keyword
MENU ▼
Read by QxMD icon Read
search

Fumarate

keyword
https://www.readbyqxmd.com/read/27926824/identification-and-characterization-of-chemosensors-for-d-malate-unnatural-enantiomer-of-malate-in-ralstonia-pseudosolanacearum
#1
Mattana Tunchai, Akiko Hida, Shota Oku, Yutaka Nakashimada, Takahisa Tajima, Junichi Kato
Ralstonia pseudosolanacearum Ps29 is attracted by nonmetabolizable D-malate, an unnatural enantiomer. Screening of a complete collection of single-mcp-gene deletion mutants of Ps29 revealed that the RSc1156 homolog is a chemosensor for D-malate. An RSc1156 homolog deletion mutant of Ps29 showed decreased but significant responses to D-malate, suggesting the existence of another D-malate chemosensor. McpM previously had been identified as a chemosensor for L-malate. We constructed an RSc1156 homolog mcpM double deletion mutant and noted that this mutant failed to respond to D-malate; thus, the RSc1156 homolog and McpM are the major chemosensors for D-malate in this organism...
December 2, 2016: Microbiology
https://www.readbyqxmd.com/read/27922719/markov-mixed-effects-modeling-using-electronic-adherence-monitoring-records-identifies-influential-covariates-to-hiv-preexposure-prophylaxis
#2
Kumpal Madrasi, Ayyappa Chaturvedula, Jessica E Haberer, Mark Sale, Michael J Fossler, David Bangsberg, Jared M Baeten, Connie Celum, Craig W Hendrix
Adherence is a major factor in the effectiveness of preexposure prophylaxis (PrEP) for HIV prevention. Modeling patterns of adherence helps to identify influential covariates of different types of adherence as well as to enable clinical trial simulation so that appropriate interventions can be developed. We developed a Markov mixed-effects model to understand the covariates influencing adherence patterns to daily oral PrEP. Electronic adherence records (date and time of medication bottle cap opening) from the Partners PrEP ancillary adherence study with a total of 1147 subjects were used...
December 6, 2016: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27922453/safety-and-efficacy-of-the-hiv-1-attachment-inhibitor-prodrug-fostemsavir-in-antiretroviral-experienced-subjects-week-48-analysis-of-ai438011-a-phase-iib-randomized-controlled-trial
#3
Melanie Thompson, Jacob P Lalezari, Richard Kaplan, Yvett Pinedo, Otto A Sussmann Pena, Pedro Cahn, David A Stock, Samit R Joshi, George J Hanna, Max Lataillade
BACKGROUND: Fostemsavir is a prodrug of temsavir, an attachment inhibitor that binds directly to HIV-1 gp120, blocking initial viral attachment and entry into host CD4 cells. Efficacy, safety, and dose-response data of fostemsavir in treatment-experienced, HIV-1-infected subjects, through Week 48, are reported. METHODS: AI438011 is an ongoing Phase IIb, randomized, active-controlled trial (NCT01384734). Subjects were randomized 1:1:1:1:1 into five arms: fostemsavir (400 mg twice daily [BID], 800 mg BID, 600 mg once daily [QD], or 1200 mg QD), and a reference arm (ritonavir-boosted atazanavir [ATV/r] 300/100 mg QD), each with a backbone of raltegravir 400 mg BID + tenofovir disoproxil fumarate 300 mg QD...
December 6, 2016: Antiviral Therapy
https://www.readbyqxmd.com/read/27921450/oral-pharmacokinetic-interaction-of-ester-rich-fruit-juices-and-pharmaceutical-excipients-with-tenofovir-disoproxil-fumarate-in-male-wistar-rats
#4
Joseph Shailender, Punna Rao Ravi, Paramita Saha, Srividya Myneni
The aim of this study was to evaluate the role of intestinal esterases on the absorption process of tenofovir disoproxil fumarate (TDF). The esterase inhibition capacity of fruit juices (FJs) rich in ester linkages and pharmaceutical excipients (having ester) was performed in vitro by incubating TDF with each FJ and excipient in the intestinal washings. The ex vivo everted gut sac model was also used to evaluate the absorption enhancement capacity of these FJs and excipients. Single dose oral pharmacokinetic studies were performed by concomitant administration of TDF with each of the selected FJs and excipients...
December 6, 2016: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/27919740/metabolic-differences-between-cold-stored-and-machine-perfused-porcine-kidneys-a-1-h-nmr-based-study
#5
Jay Nath, Tom B Smith, Kamlesh Patel, Sam R Ebbs, Alex Hollis, Daniel A Tennant, Christian Ludwig, Andrew R Ready
Hypothermic machine perfusion (HMP) and static cold storage (SCS) are the two methods used to preserve deceased donor kidneys prior to transplant. This study seeks to characterise the metabolic profile of HMP and SCS porcine kidneys in a cardiac death donor model. Twenty kidneys were cold flushed and stored for two hours following retrieval. Paired kidneys then underwent 24 h of HMP or SCS or served as time zero controls. Metabolite quantification in both storage fluid and kidney tissue was performed using one dimensional (1)H NMR spectroscopy...
December 2, 2016: Cryobiology
https://www.readbyqxmd.com/read/27919497/comparative-efficacy-and-discontinuation-of-dimethyl-fumarate-and-fingolimod-in-clinical-practice-at-12-month-follow-up
#6
Carrie M Hersh, Thomas E Love, Samuel Cohn, Claire Hara-Cleaver, Robert A Bermel, Robert J Fox, Jeffrey A Cohen, Daniel Ontaneda
BACKGROUND: Dimethyl fumarate (DMF) and fingolimod (FTY) are approved oral disease modifying therapies (DMT) for relapsing multiple sclerosis (MS). Phase 3 trials established these agents as effective and generally well tolerated, though comparative efficacy and discontinuation remain unknown. OBJECTIVE: To assess real-world efficacy and discontinuation of DMF and FTY over 12 months in patients with MS. METHODS: We identified 458 DMF-treated and 317 FTY-treated patients in a large academic MS center...
November 2016: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/27919491/comparing-outcomes-from-clinical-studies-of-oral-disease-modifying-therapies-dimethyl-fumarate-fingolimod-and-teriflunomide-in-relapsing-ms-assessing-absolute-differences-using-a-number-needed-to-treat-analysis
#7
Mark S Freedman, Xavier Montalban, Aaron E Miller, Catherine Dive-Pouletty, Steven Hass, Karthinathan Thangavelu, Thomas P Leist
Dimethyl fumarate (DMF), fingolimod, and teriflunomide are oral disease-modifying therapies (DMTs) indicated for the treatment of relapsing-remitting multiple sclerosis. Despite well-established limitations of cross-trial comparisons, DMTs are still frequently compared in terms of relative reductions in specific endpoints, most commonly annualized relapse rate. Consideration of absolute risk reduction and number needed to treat (NNT) provides an alternative approach to assess the magnitude of treatment effect and can provide valuable additional information on therapeutic gain...
November 2016: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/27918963/isolation-of-a-facultative-anaerobic-exoelectrogenic-strain-lz-1-and-probing-electron-transfer-mechanism-in-situ-by-linking-uv-vis-spectroscopy-and-electrochemistry
#8
Lei Zhou, Dandan Deng, Yichi Zhang, Wen Zhou, Yujing Jiang, Ying Liu
A new facultative anaerobic exoelectrogenic strain LZ-1, belonging to Citrobacter freundii, has been isolated. This strain can produce current densities of 843.9 and 865.6μAcm(-2) using citrate or acetate as carbon source in a three-electrode configuration. The electricity generation performance was also analyzed in a dual-chamber MFC system, reaching a maximum power density of 1233mWm(-2). In addition to acetate and citrate, other carbon sources such as pyruvate, formate, acetate, citrate and fumarate could also be utilized to produce current by strain LZ-1...
November 27, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27915250/importance-of-fumarate-and-nitrate-reduction-regulatory-protein-for-proliferation-for-intestinal-proliferation-of-vibrio-vulnificus
#9
Takehiro Kado, Takashige Kashimoto, Kohei Yamazaki, Shunji Ueno
The sepsis caused by Vibrio vulnificus is characterized by an average incubation period of 26 hours and a high mortality rate exceeding 50%. The fast growth and dissemination of V. vulnificus in vivo lead to poor clinical outcomes in patients. Therefore, elucidation of the proliferation mechanisms of this organism in vivo may lead to development of an effective therapeutic strategy. In this study, we focused on the low oxygen concentration in the intestinal milieu because of its drastic difference from that in the air...
December 2, 2016: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/27915162/high-fat-diet-induces-metabolic-changes-and-reduces-oxidative-stress-in-female-mouse-hearts
#10
Ignasi Barba, Elisabet Miró-Casas, José L Torrecilla, Eulàlia Pladevall, Sergi Tejedor, Rubén Sebastián-Pérez, Marisol Ruiz-Meana, José R Berrendero, Antonio Cuevas, David García-Dorado
After an acute myocardial infarction, obese patients generally have a better prognosis than their leaner counterparts, known as the "obesity paradox". In addition, female sex is associated with a lower risk of cardiac ischemic events and smaller infarct size compared to males. The objective of the present work was to study the metabolic phenotype and mitochondrial function associated to female sex and short-term high-fat diet. (1)H NMR spectra of mice heart extracts were analysed by mRMR variable selection and linear discriminant analysis was used to evaluate metabolic changes...
November 15, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27913198/argininosuccinate-synthetase-1-ass1-is-a-common-metabolic-marker-of-chemosensitivity-for-targeted-arginine-and-glutamine-starvation-therapy
#11
Yan Long, Wen-Bin Tsai, Dajuan Wang, David H Hawke, Niramol Savaraj, Lynn G Feun, Mien-Chie Hung, Helen H W Chen, Macus Tien Kuo
Argininosuccinate synthetase 1 (ASS1) is the rate-limiting enzyme that catalyzes the biosynthesis of arginine (Arg). Many malignant human tumors are auxotrophic for Arg because ASS1 is silenced. ASS1 has been established as a sensor of Arg auxotrophic response and a chemosensitivity marker for Arg starvation therapy. Here, we report that ASS1 is also a sensor for glutamine (Gln)-deprivation response, and that upregulation of ASS1 expression is associated with resistance to Gln-starvation treatments. Knockdown of ASS1 expression resulted in increased sensitivity to both Arg- and Gln-starvation, whereas increased ASS1 expression by ectopic transfection is associated with resistance to both Arg- and Gln-starvation...
November 29, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27907972/-tenofovir-alafenamide-fumarate-a-new-generation-of-tenofovir
#12
Svatava Snopková, Kateřina Havlíčková, Petr Husa
Antiretroviral therapy as a life-long treatment has to meet the criteria of maximum efficiency while maintaining the highest possible level of safety and tolerance. Tenofovir disoproxil fumarate (TDF) is an antiretroviral drug with an excellent effect of virological suppression. However, some patients can over time develop clinically significant nephrotoxicity or bone loss. Tenofovir alafenamide fumarate (TAF) is a novel prodrug of tenofovir (TFV) that is more stable in human plasma and more efficiently penetrates into target cells than TFV...
September 2016: Klinická Mikrobiologie a Infekc̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27905999/factors-associated-with-hiv-viral-load-blips-and-the-relationship-between-self-reported-adherence-and-efavirenz-blood-levels-on-blip-occurrence-a-case-control-study
#13
Aaron Farmer, Xun Wang, Anuradha Ganesan, Robert G Deiss, Brian K Agan, Thomas A O'Bryan, Kevin Akers, Jason F Okulicz
BACKGROUND: The uncertain etiology of HIV viral load (VL) blips may lead to increased use of clinical resources. We evaluated the association of self-reported adherence (SRA) and antiretroviral (ART) drug levels on blip occurrence in US Military HIV Natural History Study (NHS) participants who initiated the single-tablet regimen efavirenz/emtricitabine/tenofovir disoproxil fumarate (EFV/FTC/TDF). METHODS: ART-naïve NHS participants started on EFV/FTC/TDF between 2006 and 2013 who achieved VL suppression (<50 copies/mL) within 12 months and had available SRA and stored plasma samples were included...
March 22, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27904105/evaluation-of-the-lipid-concentrations-after-switching-from-antiretroviral-drug-tenofovir-disoproxil-fumarate-emtricitabine-to-abacavir-sulfate-lamivudine-in-virologically-suppressed-human-immunodeficiency-virus-infected-patients
#14
Hirotaka Arae, Masao Tateyama, Hideta Nakamura, Daisuke Tasato, Kaoru Kami, Kyoko Miyagi, Saori Maeda, Hitoshi Uehara, Makiko Moromi, Katsunori Nakamura, Jiro Fujita
Objective Recently, tenofovir disoproxil fumatate (TDF)-related side effects, such as renal nephrotoxicity and reduction of bone mineral density, have been reported. Consequently, increased switching from fixed-dose tablet TDF and emtricitabine (TDF/FTC) to abacavir and lamivudine (ABC/3TC) has occurred. Interestingly, while TDF has a lipid-lowering property, one of the ABC-related side effects is hyperlipidemia. Therefore, such switching could cause lipid elevation. To evaluate the change in lipid levels associated with switching from TDF/FTC to ABC/3TC in virologically-suppressed human immunodeficiency virus (HIV)-infected patients...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27899301/role-for-nf-%C3%AE%C2%BAb-inflammatory-signalling-pathway-in-tenofovir-disoproxil-fumarate-tdf-induced-renal-damage-in-rats
#15
Hemalatha Ramamoorthy, Premila Abraham, Bina Isaac, Dhayakani Selvakumar
Nephrotoxicity due to tenofovir treatment of HIV patients has been reported. However, the mechanism of tenofovir nephrotoxicity is not clear. NFκB is an important proinflammatory transcription factor that plays a pivotal role in oxidative stress-induced inflammation. We hypothesized that NFκB proinflammatory signalling pathway may play a role in tenofovir induced renal damage. Renal damage was induced in adult male Wistar rats by the oral administration of 600 mg/kg body wt. daily for 5 consecutive weeks...
November 27, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27898597/tenofovir-disoproxil-fumarate-associated-bone-loss-does-vitamin-d-binding-protein-play-a-role
#16
Frank A Post, Lisa Hamzah, Julie Fox
No abstract text is available yet for this article.
January 2, 2017: AIDS
https://www.readbyqxmd.com/read/27898315/single-step-single-organism-bioethanol-production-and-bioconversion-of-lignocellulose-waste-materials-by-phlebioid-fungal-species
#17
Hans Mattila, Jaana Kuuskeri, Taina Lundell
Ethanol production from non-pretreated lignocellulose was carried out in a consolidated bioprocess with wood-decay fungi of phlebioid Polyporales. Ethanol production was attempted on glucose, spruce wood sawdust and waste core board. Substantial quantities of ethanol were achieved, and isolate Phlebia radiata 0043 produced 5.9g/L of ethanol reaching the yield of 10.4% ethanol from core board lignocellulose substrate. Acidic initial culture conditions (pH 3) induced ethanol fermentation compared to the more neutral environment...
November 22, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27894844/the-tricarboxylic-acid-cycle-activity-in-cultured-primary-astrocytes-is-strongly-accelerated-by-the-protein-tyrosine-kinase-inhibitor-tyrphostin-23
#18
Michaela C Hohnholt, Eva-Maria Blumrich, Helle S Waagepetersen, Ralf Dringen
Tyrphostin 23 (T23) is a well-known inhibitor of protein tyrosine kinases and has been considered as potential anti-cancer drug. T23 was recently reported to acutely stimulate the glycolytic flux in primary cultured astrocytes. To investigate whether T23 also affects the tricarboxylic acid (TCA) cycle, we incubated primary rat astrocyte cultures with [U-(13)C]glucose in the absence or the presence of 100 μM T23 for 2 h and analyzed the (13)C metabolite pattern. These incubation conditions did not compromise cell viability and confirmed that the presence of T23 doubled glycolytic lactate production...
November 25, 2016: Neurochemistry International
https://www.readbyqxmd.com/read/27894338/erratum-to-chromatin-remodeling-factor-lsh-affects-fumarate-hydratase-as-a-cancer-driver
#19
Shuang Liu, Yong-Guang Tao
No abstract text is available yet for this article.
November 28, 2016: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/27894270/evaluation-of-tolerability-with-the-co-formulation-elvitegravir-cobicistat-emtricitabine-and-tenofovir-disoproxil-fumarate-for-post-hiv-exposure-prophylaxis
#20
Nadia Valin, Laurent Fonquernie, Anne Daguenel, Pauline Campa, Theresita Anthony, Marguerite Guiguet, Pierre Marie Girard, Marie Caroline Meyohas
BACKGROUND: The preferred regimen for HIV post-exposure prophylaxis (PEP) is based mainly on safety and tolerability because it is given to immunocompetent people without HIV infection for a limited time (28 days). The frequency of adverse events (AEs) may be > 60%. Although AEs are generally not severe, they can lead to lack of adherence and failure to complete the regimen. We evaluated the co-formulation elvitegravir, cobicistat, emtricitabine, and tenofovir disoproxil fumarate (Stribild(®)) prescribed as one pill taken once daily for HIV PEP in terms of tolerability and adherence...
November 29, 2016: BMC Infectious Diseases
keyword
keyword
42937
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"