keyword
MENU ▼
Read by QxMD icon Read
search

Metabolic pathways

keyword
https://www.readbyqxmd.com/read/27922192/evidence-for-pipecolate-oxidase-in-mediating-protection-against-hydrogen-peroxide-stress
#1
Sathish Kumar Natarajan, Ezhumalai Muthukrishnan, Oleh Khalimonchuk, Justin L Mott, Donald F Becker
Pipecolate, an intermediate of the lysine catabolic pathway, is oxidized to Δ(1) -piperideine-6-carboxylate (P6C) by the flavoenzyme L-pipecolate oxidase (PIPOX). P6C spontaneously hydrolyzes to generate α-aminoadipate semialdehyde, which is then converted into α-aminoadipate acid by α-aminoadipatesemialdehyde dehydrogenase. L-pipecolate was previously reported to protect mammalian cells against oxidative stress. Here, we examined whether PIPOX is involved in the mechanism of pipecolate stress protection...
December 6, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27922186/characterization-of-the-pro-inflammatory-cytokine-il-1%C3%AE-on-butyrate-oxidation-in-colorectal-cancer-cells
#2
Megan Johnstone, Natalie Bennett, Cynthia Standifer, Alexis Smith, Anna Han, Ahmed Bettaieb, Jay Whelan, Dallas R Donohoe
Cancer, in part, is driven, by alterations in cellular metabolism that promote cell survival and cell proliferation. Identifying factors that influence this shift in cellular metabolism in cancer cells is important. Interleukin-1β (IL-1β) is a pro-inflammatory cytokine that has been reported to be elevated in colorectal cancer patients. While much is known towards the effect of dietary nutrients on regulating inflammation and the inflammatory response, which includes cytokines such as IL-1β, far less is understood how cytokines impact nutrient fate to alter cancer cell metabolism...
December 6, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27922071/a-carotenogenic-mini-pathway-introduced-into-white-corn-does-not-affect-development-or-agronomic-performance
#3
Daniela Zanga, Teresa Capell, Gustavo A Slafer, Paul Christou, Roxana Savin
High-carotenoid corn (Carolight®) has been developed as a vehicle to deliver pro-vitamin A in the diet and thus address vitamin A deficiency in at-risk populations in developing countries. Like any other novel crop, the performance of Carolight® must be tested in different environments to ensure that optimal yields and productivity are maintained, particularly in this case to ensure that the engineered metabolic pathway does not attract a yield penalty. Here we compared the performance of Carolight® with its near isogenic white corn inbred parental line under greenhouse and field conditions, and monitored the stability of the introduced trait...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922066/de-novo-transcriptome-characterization-of-dracaena-cambodiana-and-analysis-of-genes-involved-in-flavonoid-accumulation-during-formation-of-dragon-s-blood
#4
Jia-Hong Zhu, Tian-Jun Cao, Hao-Fu Dai, Hui-Liang Li, Dong Guo, Wen-Li Mei, Shi-Qing Peng
Dragon's blood is a red resin mainly extracted from Dracaena plants, and has been widely used as a traditional medicine in East and Southeast Asia. The major components of dragon's blood are flavonoids. Owing to a lack of Dracaena plants genomic information, the flavonoids biosynthesis and regulation in Dracaena plants remain unknown. In this study, three cDNA libraries were constructed from the stems of D. cambodiana after injecting the inducer. Approximately 266.57 million raw sequencing reads were de novo assembled into 198,204 unigenes, of which 34,873 unique sequences were annotated in public protein databases...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922054/first-insight-into-the-proteome-landscape-of-the-porcine-short-posterior-ciliary-arteries-key-signalling-pathways-maintaining-physiologic-functions
#5
Caroline Manicam, Natarajan Perumal, Norbert Pfeiffer, Franz H Grus, Adrian Gericke
Short posterior ciliary arteries (sPCA) provide the major blood supply to the optic nerve head. Emerging evidence has linked structural and functional anomalies of sPCA to the pathogenesis of several ocular disorders that cause varying degrees of visual loss, particularly anterior ischaemic optic neuropathy and glaucoma. Although the functional relevance of this vascular bed is well-recognized, the proteome of sPCA remains uncharacterized. Since the porcine ocular system closely resembles that of the human's and is increasingly employed in translational ophthalmic research, this study characterized the proteome of porcine sPCA employing the mass spectrometry-based proteomics strategy...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922005/wrn-regulates-pathway-choice-between-classical-and-alternative-non-homologous-end-joining
#6
Raghavendra A Shamanna, Huiming Lu, Jessica K de Freitas, Jane Tian, Deborah L Croteau, Vilhelm A Bohr
Werner syndrome (WS) is an accelerated ageing disorder with genomic instability caused by WRN protein deficiency. Many features seen in WS can be explained by the diverse functions of WRN in DNA metabolism. However, the origin of the large genomic deletions and telomere fusions are not yet understood. Here, we report that WRN regulates the pathway choice between classical (c)- and alternative (alt)-nonhomologous end joining (NHEJ) during DNA double-strand break (DSB) repair. It promotes c-NHEJ via helicase and exonuclease activities and inhibits alt-NHEJ using non-enzymatic functions...
December 6, 2016: Nature Communications
https://www.readbyqxmd.com/read/27921460/direct-infusion-mass-spectrometry-for-metabolomic-phenotyping-of-diseases
#7
Raúl González-Domínguez, Ana Sayago, Ángeles Fernández-Recamales
Metabolomics based on direct mass spectrometry (MS) analysis, either by direct infusion or flow injection of crude sample extracts, shows a great potential for metabolic fingerprinting because of its high-throughput screening capability, wide metabolite coverage and reduced time of analysis. Considering that numerous metabolic pathways are significantly perturbed during the initiation and progression of diseases, these metabolomic tools can be used to get a deeper understanding about disease pathogenesis and discover potential biomarkers for early diagnosis...
January 2017: Bioanalysis
https://www.readbyqxmd.com/read/27921359/modulation-of-vegf-signaling-in-a-mouse-model-of-diabetes-by-xanthohumol-and-8-prenylnaringenin-unveiling-the-angiogenic-paradox-and-metabolism-interplay
#8
Raquel Costa, Ilda Rodrigues, Luísa Guardão, Joana Quelhas Lima, Emília Sousa, Raquel Soares, Rita Negrão
SCOPE: Imbalance in kidney and heart neovascularization is common in type2 Diabetes (T2DM) patients. Nevertheless, the mechanisms governing this angiogenic paradox have not been elucidated. Xanthohumol (XN) and 8-prenylnaringenin (8PN) beer polyphenols modulate angiogenesis, being thus targets for T2DM-related complications. Our work examined whether polyphenols consumption affects angiogenic paradox and metabolism in a T2DM mouse model. METHODS AND RESULTS: An increase in kidney and a reduction in left ventricle (LV) microvessels of diabetic C57Bl/6 mice were observed...
December 6, 2016: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/27921082/global-role-of-cyclic-amp-signaling-in-ph-dependent-responses-in-candida-albicans
#9
Jeffrey M Hollomon, Nora Grahl, Sven D Willger, Katja Koeppen, Deborah A Hogan
Candida albicans behaviors are affected by pH, an important environmental variable. Filamentous growth is a pH-responsive behavior, where alkaline conditions favor hyphal growth and acid conditions favor growth as yeast. We employed filamentous growth as a tool to study the impact of pH on the hyphal growth regulator Cyr1, and we report that downregulation of cyclic AMP (cAMP) signaling by acidic pH contributes to the inhibition of hyphal growth in minimal medium with GlcNAc. Ras1 and Cyr1 are generally required for efficient hyphal growth, and the effects of low pH on Ras1 proteolysis and GTP binding are consistent with diminished cAMP output...
November 2016: MSphere
https://www.readbyqxmd.com/read/27921077/data-of-the-interacting-protein-networks-and-nucleotide-metabolism-pathways-related-to-ndk-and-nt5
#10
Dan Zhang, Wen Ma, Yu He, Gu He, Peng Zhang, Hongxia Zhu, Ningzhi Xu, Shufang Liang
The data presented in this article are related to the research article entitled "Antibacterial mechanism of daptomycin antibiotic against Staphylococcus aureus based on a quantitative bacterial proteome analysis" (Ma et al., 2016) [1]. Nucleoside diphosphate kinase (NDK) and 5'-nucleotidase (NT5) are two proteins related to bacterial growth. Here, a bioinformatics analysis was presented to explore NDK and NT5-invovled in the interacting protein network and purine metabolism.
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27921049/metabolic-syndrome-in-children-and-adolescents
#11
REVIEW
Christine Graf, Nina Ferrari
BACKGROUND: Juvenile obesity is associated with multiple cardiometabolic comorbidities, which may culminate in the metabolic syndrome (MetS). METHODS: Based on a narrative review, the current knowledge of prevalence and the underlying metabolic principles regarding juvenile obesity and MetS are summarized to compile up-to-date information. In addition, the role of lifestyle as well as positive and negative influencing factors are focused on. RESULTS: The prevalence of MetS occurs between 1 and up to 23% in the total pediatric population and in up to 60% amongst the obese and overweight...
October 2016: Visceral Medicine
https://www.readbyqxmd.com/read/27920773/glucose-metabolism-via-the-entner-doudoroff-pathway-in-campylobacter-a-rare-trait-that-enhances-survival-and-promotes-biofilm-formation-in-some-isolates
#12
Christina S Vegge, Melissa J Jansen van Rensburg, Janus J Rasmussen, Martin C J Maiden, Lea G Johnsen, Morten Danielsen, Sheila MacIntyre, Hanne Ingmer, David J Kelly
Isolates of the zoonotic pathogen Campylobacter are generally considered to be unable to metabolize glucose due to lack of key glycolytic enzymes. However, the Entner-Doudoroff (ED) pathway has been identified in Campylobacter jejuni subsp. doylei and a few C. coli isolates. A systematic search for ED pathway genes in a wide range of Campylobacter isolates and in the C. jejuni/coli PubMLST database revealed that 1.7% of >6,000 genomes encoded a complete ED pathway, including both C. jejuni and C. coli from diverse clinical, environmental and animal sources...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27920770/the-use-of-transposon-insertion-sequencing-to-interrogate-the-core-functional-genome-of-the-legume-symbiont-rhizobium-leguminosarum
#13
Benjamin J Perry, Mir S Akter, Christopher K Yost
The free-living legume symbiont Rhizobium leguminosarum is of significant economic value because of its ability to provide fixed nitrogen to globally important leguminous food crops, such as peas and lentils. Discovery based research into the genetics and physiology of R. leguminosarum provides the foundational knowledge necessary for understanding the bacterium's complex lifestyle, necessary for augmenting its use in an agricultural setting. Transposon insertion sequencing (INSeq) facilitates high-throughput forward genetic screening at a genomic scale to identify individual genes required for growth in a specific environment...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27920755/finding-potential-therapeutic-targets-against-shigella-flexneri-through-proteome-exploration
#14
Mohammad Uzzal Hossain, Md Arif Khan, Abu Hashem, Md Monirul Islam, Mohammad Neaz Morshed, Chaman Ara Keya, Md Salimullah
Background:Shigella flexneri is a gram negative bacteria that causes the infectious disease "shigellosis." S. flexneri is responsible for developing diarrhea, fever, and stomach cramps in human. Antibiotics are mostly given to patients infected with shigella. Resistance to antibiotics can hinder its treatment significantly. Upon identification of essential therapeutic targets, vaccine and drug could be effective therapy for the treatment of shigellosis. Methods: The study was designed for the identification and qualitative characterization for potential drug targets from S...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27920626/evaluation-of-serum-vitamin-d-levels-in-adolescents-with-pubertal-gynecomastia
#15
Melis Pehlivantürk Kızılkan, Sinem Akgül, Filiz Akbıyık, Orhan Derman, Nuray Kanbur
BACKGROUND: Since vitamin D has an inhibitory function on ductal morphogenesis of the pubertal mammary gland, it may have a role in the development of gynecomastia. The aim of this study was to determine the effect of vitamin D deficiency on the development of pubertal gynecomastia. METHODS: Serum 25-hydroxyvitamin D (25D) levels in 50 adolescents with pubertal gynecomastia and 54 healthy controls between the ages of 11 and 17 years were compared. RESULTS: Mean 25D level was 14...
October 2016: Breast Care
https://www.readbyqxmd.com/read/27920298/malate-synthase-and-%C3%AE-methylmalyl-coa-lyase-reactions-in-the-methylaspartate-cycle-in-haloarcula-hispanica
#16
Farshad Borjian, Jing Han, Jing Hou, Hua Xiang, Jan Zarzycki, Ivan A Berg
: Haloarchaea are extremely halophilic heterotrophic microorganisms belonging to the class Halobacteria (Euryarchaeota). Almost half of the haloarchaea possesses the genes coding for enzymes of the methylaspartate cycle, a recently discovered anaplerotic acetate assimilation pathway. In this cycle, the enzymes of the tricarboxylic acid cycle together with the dedicated enzymes of the methylaspartate cycle convert two acetyl-CoA molecules to malate. The methylaspartate cycle involves two reactions catalyzed by homologous enzymes belonging to the CitE-like enzyme superfamily, the malyl-CoA lyase/thioesterase (haloarchaeal malate synthase, hMS, Hah_2476 in Haloarcula hispanica) and the β-methylmalyl-CoA lyase (hMCL, Hah_1341)...
December 5, 2016: Journal of Bacteriology
https://www.readbyqxmd.com/read/27919945/the-leloir-pathway-of-galactose-metabolism-a-novel-therapeutic-target-for-hepatocellular-carcinoma
#17
Manshu Tang, Enoabasi Etokidem, Kent Lai
Hepatocellular carcinoma (HCC) is one of the most lethal types of cancer worldwide, with poor prognosis and limited treatments. In order to identify novel therapeutic targets that will lead to development of effective therapies with manageable side effects, we tested the hypothesis that knocking-down galactokinase (GALK1) or galactose-1 phosphate uridylyltransferase (GALT) gene expression would control the growth of cultured hepatoma cells. Our results showed small interfering RNA (siRNA) against GALK1 or GALT inhibited the growth of HepG2 cells in culture...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27919791/biosensor-assisted-transcriptional-regulator-engineering-for-methylobacterium-extorquens-am1-to-improve-mevalonate-synthesis-by-increasing-the-acetyl-coa-supply
#18
Wei-Fan Liang, Lan-Yu Cui, Jin-Yu Cui, Kai-Wen Yu, Song Yang, Chong Zhang, Xin-Hui Xing
Acetyl-CoA is not only an important intermediate metabolite for cells but also a significant precursor for production of industrially interesting metabolites. Methylobacterium extorquens AM1, a model strain of methylotrophic cell factories using methanol as carbon source, is of interest because it produces abundant coenzyme A compounds capable of directing to synthesis of different useful compounds from methanol. However, acetyl-CoA always does not efficiently accumulate in M.extorquens AM1, as it is located in the center of three cyclic central metabolic pathways...
December 2, 2016: Metabolic Engineering
https://www.readbyqxmd.com/read/27919740/metabolic-differences-between-cold-stored-and-machine-perfused-porcine-kidneys-a-1-h-nmr-based-study
#19
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/27919737/histone-deacetylases-3-deletion-restrains-pm2-5-induced-mice-lung-injury-by-regulating-nf-%C3%AE%C2%BAb-and-tgf-%C3%AE-smad2-3-signaling-pathways
#20
Li-Zhi Gu, Hong Sun, Jian-Hui Chen
Acute lung injury (ALI) as a serious disease with high mortality has been emphasized as a threat to human health and life. Accumulating studies demonstrated that PM2.5 plays a significant role in metabolic and lung diseases. Histone deacetylases 3 (HDAC3) is an important regulator in control of gene transcription, required in up-regulation of inflammation-related signaling, and has been known as a key hotpot in treating a lot of chronic inflammatory diseases. TGF-β/Smad signaling pathway has been proven to be of significance in fibrosis development...
December 2, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
keyword
keyword
51905
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"