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https://www.readbyqxmd.com/read/29792949/srnaome-and-transcriptome-analysis-provide-insight-into-chilling-response-of-cowpea-pods
#1
Jinhua Zuo, Yunxiang Wang, Benzhong Zhu, Yunbo Luo, Qing Wang, Lipu Gao
Cowpea is an important horticultural crop in tropical and subtropical areas of Asia, Africa, and Latin America, as well as parts of southern Europe and Central and South America. Chilling injury is a common physiological hazard of cowpea in cold chain logistics which reduce the cowpea pod's nutritional quality and product value. However, the molecular mechanism involved in chilling injury remains unclear in cowpea pods. RNA-Seq and sRNA-Seq technologies were employed to decipher the miRNAs and mRNAs expression profiles and their regulatory networks in cowpea pods involved in chilling stress...
May 21, 2018: Gene
https://www.readbyqxmd.com/read/29791720/c-4-photosynthesis-and-transition-of-kranz-anatomy-in-cotyledons-and-leaves-of-tetraena-simplex
#2
Riyadh Muhaidat, Athena D McKown, Mazhar Al Zoubi, Zakariya Bani Domi, Osama Otoum
PREMISE OF THE STUDY: Tetraena simplex is an independently evolved C4 species in the Zygophylloideae (Zygophyllaceae) and a characteristic forb of saline flats in hot and sandy desert habitats. During early ontogeny, the species had a morphological shift from planar cotyledons (dorsiventral symmetry) to terete, succulent leaves (radial symmetry). We tested whether this shift had a corresponding change in internal Kranz anatomy and tissue patterning. METHODS: For a comprehensive characterization of C4 photosynthesis across early ontogeny in T...
May 23, 2018: American Journal of Botany
https://www.readbyqxmd.com/read/29790749/anti-inflammatory-activity-of-8-hydroxydaidzein-in-lps-stimulated-bv2-microglial-cells-via-activation-of-nrf2-antioxidant-and-attenuation-of-akt-nf-%C3%AE%C2%BAb-inflammatory-signaling-pathways-as-well-as-inhibition-of-cox-2-activity
#3
Pei-Shan Wu, Hsiou-Yu Ding, Jui-Hung Yen, Shu-Fen Chen, Kuan-Han Lee, Ming-Jiuan Wu
It was demonstrated that isoflavones can cross the blood-brain barrier, making them desirable candidate agents for the prevention of neurological symptoms. 8-Hydroxydaidzein (8-OHD, 4',7,8-trihydoxyisoflavone) is an isoflavone found only in fermented soy food. Current results showed that 8-OHD inhibited LPS-stimulated production of nitric oxide (NO) and proinflammatory cytokines, such as tumor necrosis factor (TNF)-α and interleukin (IL)-6, by inhibiting gene expression in BV2 microglial cells. Moreover, 8-OHD markedly quenched reactive oxygen species (ROS) and activated NF-E2-related factor 2 (Nrf2) so as to upregulate expression of Phase II enzymes, including heme oxygenase (HO)-1, NAD(P)H quinone dehydrogenase 1 (NQO1), and the modifier subunit of glutamate cysteine ligase (GCLM)...
May 23, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29789426/jak1-mediated-sirt1-phosphorylation-functions-as-a-negative-feedback-of-the-jak1-stat3-pathway
#4
Wenhui Wang, Fei Li, Yuanming Xu, Juncheng Wei, Yana Zhang, Heeyoung Yang, Beixue Gao, Guohua Yu, Deyu Fang
The type III NAD-dependent histone deacetylase Sirt1 plays important roles in a variety of pathobiological functions through targeting either the acetylated histones or transcription factors. However, the molecular mechanisms underlying how the Sirt1 functions are regulated remain vague. Herein we identified that the Janus kinase 1 (JAK1) interacts with Sirt1 and catalyzes its phosphorylation at the tyrosine residues of 280 and 301, both of which are highly conserved and locate in the histone deacetylase catalytic domain of Sirt1...
May 22, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29788962/phenolics-from-barleria-cristata-var-alba-as-carcinogenesis-blockers-against-menadione-cytotoxicity-through-induction-and-protection-of-quinone-reductase
#5
Ali M El-Halawany, Hossam M Abdallah, Ahmed R Hamed, Hany Ezzat Khalil, Ameen M Almohammadi
BACKGROUND: There are increasing interests in natural compounds for cancer chemoprevention. Blocking agents represent an important class of chemopreventive compounds. They prevent carcinogens from undergoing metabolic activation and thereby suppressing their interaction with cellular macromolecular targets. METHODS: The effect of phenolic compounds isolated from Barleria cristata var. alba as chemopreventive agent was evaluated. The ethyl acetate fraction of B. cristata was subjected to different chromatographic techniques for isolation of its major phenolic compounds...
May 22, 2018: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29787243/benchmark-analysis-of-native-and-artificial-nad-dependent-enzymes-generated-by-a-sequence-based-design-method-with-or-without-phylogenetic-data
#6
Shogo Nakano, Tomoharu Motoyama, Yurina Miyashita, Yuki Ishizuka, Naoya Matsuo, Hiroaki Tokiwa, Suguru Shinoda, Yasuhisa Asano, Sohei Ito
The expansion of protein sequence databases has enabled us to design artificial proteins by sequence-based design methods, such as full consensus design (FCD) and ancestral sequence reconstruction (ASR). Artificial proteins with enhanced activity levels compared with native ones can potentially be generated by such methods, but successful design is rare because preparing a sequence library by curating the database and selecting a method is difficult. Utilizing a curated library prepared by reducing conservation energies, we successfully designed two artificial L-threonine 3-dehydrogenase (SDR-TDH) with higher activity levels than native SDR-TDH, FcTDH-N1 and AncTDH, using FCD and ASR, respectively...
May 22, 2018: Biochemistry
https://www.readbyqxmd.com/read/29784781/c-4-sterol-demethylation-enzymes-distinguish-bacterial-and-eukaryotic-sterol-synthesis
#7
Alysha K Lee, Amy B Banta, Jeremy H Wei, David J Kiemle, Ju Feng, José-Luis Giner, Paula V Welander
Sterols are essential eukaryotic lipids that are required for a variety of physiological roles. The diagenetic products of sterol lipids, sterane hydrocarbons, are preserved in ancient sedimentary rocks and are utilized as geological biomarkers, indicating the presence of both eukaryotes and oxic environments throughout Earth's history. However, a few bacterial species are also known to produce sterols, bringing into question the significance of bacterial sterol synthesis for our interpretation of sterane biomarkers...
May 21, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29784680/raising-nad-in-heart-failure-time-to-translate
#8
EDITORIAL
Matthew A Walker, Rong Tian
No abstract text is available yet for this article.
May 22, 2018: Circulation
https://www.readbyqxmd.com/read/29782205/nad-repletion-produces-no-therapeutic-effect-in-mice-with-respiratory-chain-complex-iii-deficiency-and-chronic-energy-deprivation
#9
Janne Purhonen, Jayasimman Rajendran, Saara Tegelberg, Olli-Pekka Smolander, Eija Pirinen, Jukka Kallijärvi, Vineta Fellman
Biosynthetic precursors of NAD+ can replenish a decreased cellular NAD+ pool and, supposedly via sirtuin (SIRT) deacetylases, improve mitochondrial function. We found decreased hepatic NAD+ concentration and downregulated biosynthesis in Bcs1lp.S78G knock-in mice with respiratory chain complex III deficiency and mitochondrial hepatopathy. Aiming at ameliorating disease progression via NAD+ repletion and improved mitochondrial function, we fed these mice nicotinamide riboside (NR), a NAD+ precursor. A targeted metabolomics verified successful administration and suggested enhanced NAD+ biosynthesis in the treated mice, although hepatic NAD+ concentration was unchanged at the end point...
May 21, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29778462/altered-mitochondrial-acetylation-profiles-in-a-kainic-acid-model-of-temporal-lobe-epilepsy
#10
Lindsey B Gano, Li-Ping Liang, Kristen Ryan, Cole R Michel, Joe Gomez, Athanassios Vassilopoulos, Nichole Reisdorph, Kristofer S Fritz, Manisha Patel
Impaired bioenergetics and oxidative damage in the mitochondria are implicated in the etiology of temporal lobe epilepsy, and hyperacetylation of mitochondrial proteins has recently emerged as a critical negative regulator of mitochondrial functions. However, the roles of mitochondrial acetylation and activity of the primary mitochondrial deacetylase, SIRT3, have not been explored in acquired epilepsy. We investigated changes in mitochondrial acetylation and SIRT3 activity in the development of chronic epilepsy in the kainic acid rat model of TLE...
May 17, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29778095/establishing-an-innovative-carbohydrate-metabolic-pathway-for-efficient-production-of-2-keto-l-gulonic-acid-in-ketogulonicigenium-robustum-initiated-by-intronic-promoters
#11
Cai-Yun Wang, Ye Li, Zi-Wei Gao, Li-Cheng Liu, Meng-Yue Zhang, Tian-Yuan Zhang, Chun-Fu Wu, Yi-Xuan Zhang
BACKGROUND: 2-Keto-L-gulonic acid (2-KGA), the precursor of vitamin C, is currently produced by two-step fermentation. In the second step, L-sorbose is transformed into 2-KGA by the symbiosis system composed of Ketogulonicigenium vulgare and Bacillus megaterium. Due to the different nutrient requirements and the uncertain ratio of the two strains, the symbiosis system significantly limits strain improvement and fermentation optimization. RESULTS: In this study, Ketogulonicigenium robustum SPU_B003 was reported for its capability to grow well independently and to produce more 2-KGA than that of K...
May 19, 2018: Microbial Cell Factories
https://www.readbyqxmd.com/read/29778044/electrodeposited-styrylquinolinium-dye-as-molecular-electrocatalyst-for-coupled-redox-reactions
#12
Yolina Hubenova, Rumyana Bakalska, Mario Mitov
Modification of carbonaceous materials with different conductive coatings is a successful approach to enhance their electrocatalytic activity and thus to increase the electrical outputs when used as electrodes in biofuel cells. In this study, a methodology for electrodeposition of styrylquinolinium dye on carbon felt was developed. The produced dye electrodeposits were characterized by means of AFM, ESI-MS/MS and NMR spectroscopy. The obtained data reveal that the dye forms overlaid layers consisting of monomer molecules most likely with an antiparallel orientation...
May 10, 2018: Bioelectrochemistry
https://www.readbyqxmd.com/read/29777775/genome-analysis-of-the-ancient-tracheophyte-selaginella-tamariscina-reveals-evolutionary-features-relevant-to-the-acquisition-of-desiccation-tolerance
#13
Zhichao Xu, Tianyi Xin, Dorothea Bartels, Ying Li, Wei Gu, Hui Yao, Sai Liu, Haoying Yu, Xiangdong Pu, Jianguo Zhou, Jiang Xu, Caicai Xi, Hetian Lei, Jingyuan Song, Shilin Chen
Resurrection plants, which are the "gifts" of natural evolution, are ideal models for studying genetic basis of plant desiccation tolerance. Here, we report a high-quality genome assembly of 301 Mb for the diploid spike moss Selaginella tamariscina, a primitive vascular resurrection plant. We predicated 27,761 protein-coding genes from the assembled S. tamariscina genome, 11.38% (2363) of which showed significant expression changes in response to desiccation. Approximately 60.58% of the S. tamariscina genome was annotated as repetitive DNA, which is almost 2-fold increase of that in the genome of desiccation-sensitive S...
May 16, 2018: Molecular Plant
https://www.readbyqxmd.com/read/29777578/sirt3-deficiency-impairs-neurovascular-recovery-in-ischemic-stroke
#14
Xiao Yang, Ke-Yi Geng, Yan-Shuang Zhang, Jin-Fan Zhang, Ke Yang, Jia-Xiang Shao, Wei-Liang Xia
AIMS: Sirt3 is one member of the NAD+ -dependent protein deacetylase family and plays crucial roles in diverse aspects of mammalian biological function. Then the role of Sirt3 on ischemia stroke is unknown. METHODS: To examine the effect of Sirt3 on ischemic stroke, we performed transient middle cerebral artery occlusion (tMCAO) in adult male Sirt3 knockout (KO) and wild-type (WT) mice. RESULTS: The level of Sirt3 in infarct region is decreased after ischemic stroke...
May 18, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29777512/discovery-of-an-acidic-thermostable-and-highly-nadp-dependent-formate-dehydrogenase-from-lactobacillus-buchneri-nrrl-b-30929
#15
Saadet Alpdağtaş, Sevil Yücel, Handan Açelya Kapkaç, Siqing Liu, Barış Binay
OBJECTIVES: To identify a robust NADP+ dependent formate dehydrogenase from Lactobacillus buchneri NRRL B-30929 (LbFDH) with unique biochemical properties. RESULTS: A new NADP+ dependent formate dehydrogenase gene (fdh) was cloned from genomic DNA of L. buchneri NRRL B-30929. The recombinant construct was expressed in Escherichia coli BL21(DE3) with 6 × histidine at the C-terminus and the purified protein obtained as a single band of approx. 44 kDa on SDS-PAGE and 90 kDa on native-PAGE...
May 18, 2018: Biotechnology Letters
https://www.readbyqxmd.com/read/29775616/amelioration-of-uvb-induced-oxidative-stress-and-inflammation-in-fat-1-transgenic-mouse-skin
#16
Hye-Won Yum, Seong Hoon Kim, Jing X Kang, Young-Joon Surh
ω-3 polyunsaturated fatty acids (PUFAs), which are abundant in some fish oils, are known to scavenge lipid peroxyl radicals and increase host immunoresponsiveness. As UVB-induced oxidative stress and inflammation have been implicated in apoptotic cell death, this study was designed to investigate the anti-inflammatory, anti-oxidative, and anti-apoptotic capacity of fat-1 transgenic mice capable of converting ω-6 to ω-3 PUFAs. Wild-type (WT) C57BL/6 mice and fat-1 mice were maintained on the AIN-93 diet supplemented with 10% safflower oil rich in ω-6 PUFAs for 5 weeks...
May 15, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29773670/high-%C3%AE-tocopherol-dosing-increases-lipid-metabolism-by-changing-redox-state-in-damaged-rat-gastric-mucosa-and-liver-after-ethanol-treatment
#17
Marisela Olguín-Martínez, Diego R Hernández-Espinosa, Rolando Hernández-Muñoz
Regeneration of ethanol-injured rat gastric mucosa must undergo changes in major metabolic pathways to achieve DNA replication and cell proliferation. These events are highly dependent on glucose utilization and inhibited by vitamin E (α-tocopherol) administration. Therefore, this study was aimed at assessing lipid metabolism in the gastric mucosa and ethanol-induced gastric damage and the effect of α-tocopherol administration. For this, rates of fatty acid β-oxidation and lipogenesis were tested in gastric mucosa samples...
May 17, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29770663/-in-silico-cloning-and-comparative-analysis-of-nad1-gene-in-three-common-human-parasites
#18
Xie Jian, Zhao Yong-Xia, Yang Ming-Li, Zhang Zhi-Min, Jia Qi
OBJECTIVE: To in silico clone the NAD1 gene of three common parasites and analyze their bioinformatics, so as to lay the foundation for further research on the NAD gene. METHODS: By using the in silico cloning method, the full length cDNA (s) of NAD 1 genes of Clonorchis sinensis , Ascaris lumbricoides and Schistosoma japonicum were got, then their physical and chemical properties, compositions of amino acids, subcellular localizations, binary and ternary structures were contrastively analyzed...
April 25, 2018: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
https://www.readbyqxmd.com/read/29769837/the-role-of-extracellular-adenosine-generation-in-the-development-of-autoimmune-diseases
#19
REVIEW
F Morandi, A L Horenstein, R Rizzo, F Malavasi
Adenosine (ADO) is an immunosuppressive molecule, which suppresses the immune responses by interacting with specific receptors expressed by immune effector cells. ADO is produced from ATP through the enzymatic activities of CD39 and CD73. Alternatively, ADO can be generated starting from NAD+ , which is metabolized by the concerted action of CD38, CD203a/PC-1, and CD73. The role of ADO in immunity has been characterized in the last years in physiology and in pathological settings. This review examines a panel of reports focused on the functions of ADO in the context of human autoimmune/inflammatory diseases and the selected animal models...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29769314/ablation-of-sirtuin5-in-the-postnatal-mouse-heart-results-in-protein-succinylation-and-normal-survival-in-response-to-chronic-pressure-overload
#20
Kathleen A Hershberger, Dennis M Abraham, Juan Liu, Jason W Locasale, Paul A Grimsrud, Matthew D Hirschey
Mitochondrial Sirtuin 5 (SIRT5) is an NAD+-dependent demalonylase, desuccinylase, and deglutarylase that controls several metabolic pathways. A number of recent studies point to SIRT5 desuccinylase activity being important in maintaining cardiac function and metabolism under stress. Previously, we described a phenotype of increased mortality in whole-body SIRT5KO mice exposed to chronic pressure overload compared to their littermate WT controls. To determine if the survival phenotype we reported was due to a cardiac-intrinsic or cardiac-extrinsic effect of SIRT5, we developed a tamoxifen-inducible, heart-specific SIRT5KO mouse model...
May 16, 2018: Journal of Biological Chemistry
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