keyword
MENU ▼
Read by QxMD icon Read
search

Sucrose

keyword
https://www.readbyqxmd.com/read/28431176/effect-of-melatonin-on-renewal-of-chicken-small-intestinal-mucosa
#1
J Li, R X Li, G Liu, C F Lv, Y L Mi, C Q Zhang
A higher concentration of melatonin (MEL) in the intestine - even more than that in the plasma and pineal gland - implies its putative important role in the gastrointestinal structural or functional regulation. However, little evidence has shown that MEL can regulate the physiological functions of the intestinal mucosa. In this study, fertilized chicken eggs were treated with MEL (0.1 to 10 μg/d) from embryonic d 12 (E12) to post-hatching d 6 (D6), and the small intestine samples were collected at D6 to determine the changes in mucosal construction and function...
April 20, 2017: Poultry Science
https://www.readbyqxmd.com/read/28430866/maternal-high-sucrose-diets-altered-vascular-large-conductance-ca2-activated-k-channels-via-reactive-oxygen-species-in-offspring-rats%C3%A2
#2
Xueqin Feng, Xiuwen Zhou, Wenna Zhang, Xiang Li, Axin He, Bailin Liu, Ruixiu Shi, Lei Wu, Jue Wu, Di Zhu, Na Li, Miao Sun, Zhice Xu
Overnutrition during pregnancy could increase risks of cardiovascular diseases in late life. This study investigated whether and how reactive oxygen species (ROS) may influence functions of large-conductance Ca2+-activated K+ channels (BKCa) in the offspring exposed to prenatal high-sucrose (HS). We found that prenatal high-sucrose diets significantly increased phenylephrine (PE)-induced vessel contractions in mesenteric arteries of the adult offspring. Pretreatment with iberiotoxin (BKCa blocker, IBTX) significantly increased PE-mediated vascular contractions in the control, not in the HS group...
April 18, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28429873/sucrose-transporters-and-plasmodesmal-regulation-in-passive-phloem-loading
#3
Johannes Liesche
An essential step for the distribution of carbon throughout the whole plant is the loading of sugars into the phloem in source organs. In many plants, accumulation of sugars in the sieve element-companion cell (SE-CC) complex is mediated and regulated by active processes. However, for poplar and many other tree species, a passive symplasmic mechanism of phloem loading has been proposed, characterized by symplasmic continuity along the pre-phloem pathway and the absence of active sugar accumulation in the SE-CC complex...
April 21, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28429856/glycosyltransferase-cascades-for-natural-product-glycosylation-use-of-plant-instead-of-bacterial-sucrose-synthases-improves-the-udp-glucose-recycling-from-sucrose-and-udp
#4
Alexander Gutmann, Alexander Lepak, Margo Diricks, Tom Desmet, Bernd Nidetzky
Natural product glycosylations by Leloir glycosyltransferases (GTs) require expensive nucleotide-activated sugars as substrates. Sucrose synthase (SuSy) converts sucrose and uridine 5'-diphosphate (UDP) into UDP-glucose. Coupling of SuSy and GT reactions in one-pot cascade transformations creates a UDP cycle, which regenerates the UDP-glucose continuously and so makes it an expedient donor for glucoside production. Here we compare SuSys with divergent kinetic characteristics for UDP-glucose recycling in the synthesis of the natural C-glucoside nothofagin...
April 21, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28429187/curcumin-reverses-the-depressive-like-behavior-and-insulin-resistance-induced-by-chronic-mild-stress
#5
Ji-Duo Shen, Yu Wei, Yu-Jie Li, Jing-Yi Qiao, Yu-Cheng Li
Increasing evidence has demonstrated that patients with depression have a higher risk of developing type 2 diabetes. Insulin resistance has been identified as the key mechanism linking depression and diabetes. The present study established a rat model of depression complicated by insulin resistance using a 12-week exposure to chronic mild stress (CMS) and investigated the therapeutic effects of curcumin. Sucrose intake tests were used to evaluate depressive-like behaviors, and oral glucose tolerance tests (OGTT) and intraperitoneal insulin tolerance tests (IPITT) were performed to evaluate insulin sensitivity...
April 21, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28427255/oligosaccharides-are-a-key-factor-in-prediction-of-amino-acid-digestibility-in-soybean-meal-of-different-origins-when-fed-to-growing-pigs
#6
Zhongchao Li, Qiuyun Wang, Fei Xie, Dewen Liu, Yakui Li, Zhiqian Lyu, Changhua Lai
Objective: The objective of this experiment was to determine apparent ileal digestibility (AID) and standardized ileal digestibility (SID) of CP and AA in 15 sources of soybean meal (SBM) produced from soybeans from different countries and subsequently to establish equations for predicting the AID and SID in SBM based on their chemical composition. Methods: Eighteen barrows (57.9 6.1 kg) fitted with a simple T-cannula were allotted into three 6 × 6 Latin square designs...
April 21, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28426970/thalamic-regulation-of-sucrose-seeking-during-unexpected-reward-omission
#7
Fabricio H Do-Monte, Angélica Minier-Toribio, Kelvin Quiñones-Laracuente, Estefanía M Medina-Colón, Gregory J Quirk
The paraventricular nucleus of the thalamus (PVT) is thought to regulate behavioral responses under emotionally arousing conditions. Reward-associated cues activate PVT neurons; however, the specific PVT efferents regulating reward seeking remain elusive. Using a cued sucrose-seeking task, we manipulated PVT activity under two emotionally distinct conditions: (1) when reward was available during the cue as expected or (2) when reward was unexpectedly omitted during the cue. Pharmacological inactivation of the anterior PVT (aPVT), but not the posterior PVT, increased sucrose seeking only when reward was omitted...
April 19, 2017: Neuron
https://www.readbyqxmd.com/read/28426717/adjusting-cryodiluent-composition-for-improved-post-thaw-quality-of-rabbit-spermatozoa
#8
Sally E Hall, Cameron Negus, Danielle Johinke, Roslyn Bathgate
Improved fertility following artificial insemination with frozen-thawed spermatozoa would offer rabbit producers faster genetic improvement. Previous work investigating cryoprotectants for rabbit spermatozoa have reported inconsistent results. Semen was collected from three rabbit bucks by artificial vagina and frozen using a standard procedure with varied cryodiluent components. Post-thaw analysis encompassed motility, sperm kinematic parameters and acrosome and membrane integrity. Spermatozoa were evaluated at 0, 2 and 4 h after thawing...
2017: PloS One
https://www.readbyqxmd.com/read/28426670/mice-expressing-a-hyper-sensitive-form-of-the-cb1-cannabinoid-receptor-cb1-show-modestly-enhanced-alcohol-preference-and-consumption
#9
David J Marcus, Angela N Henderson-Redmond, Maciej Gonek, Michael L Zee, Jill C Farnsworth, Randa A Amin, Mary-Jeanette Andrews, Brian J Davis, Ken Mackie, Daniel J Morgan
We recently characterized S426A/S430A mutant mice expressing a desensitization-resistant form of the CB1 receptor. These mice display an enhanced response to endocannabinoids and ∆9-THC. In this study, S426A/S430A mutants were used as a novel model to test whether ethanol consumption, morphine dependence, and reward for these drugs are potentiated in mice with a "hyper-sensitive" form of CB1. Using an unlimited-access, two-bottle choice, voluntary drinking paradigm, S426A/S430A mutants exhibit modestly increased intake and preference for low (6%) but not higher concentrations of ethanol...
2017: PloS One
https://www.readbyqxmd.com/read/28426383/contribution-of-sucrose-transporters-to-phloem-unloading-within-sorghum-bicolor-stem-internodes
#10
Ricky J Milne, Anke Reinders, John M Ward, Christina E Offler, John W Patrick, Christopher P L Grof
Sucrose produced in source leaves is loaded into collection phloem, transported to sinks and unloaded for utilisation or storage. In the context of long distance transport, sucrose transporters (SUTs) can function to load sucrose into collection phloem, retrieve leaked sucrose during long distance transport, and load sucrose into sink cells. SUTs have also been proposed to efflux sucrose under conditions of low proton motive force and low extracellular sucrose. The involvement of sucrose transporters in phloem unloading in a representative monocot stem, Sorghum bicolor, was evaluated during different stages of internode development...
April 20, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28426168/walking-a-fine-line-with-sucrose-phosphorylase-efficient-single-step-biocatalytic-production-of-l-ascorbic-acid-2-glucoside-from-sucrose
#11
Rama Krishna Gudiminchi, Bernd Nidetzky
The 2-O-α-D-glucoside of L-ascorbic acid (AA-2G) is a highly stabilized form of vitamin C, with important applications in cosmetics, foods and pharmaceuticals. Sucrose would be an ideal substrate for AA-2G synthesis, but it cannot be used lacking a suitable transglycosidase. We show that in a narrow pH window with sharp optimum at pH 5.2, select sucrose phosphorylases catalyzed 2-O-α-glucosylation of L-ascorbic acid from sucrose with high efficiency and perfect site-selectivity. Optimized synthesis with the enzyme from Bifidobacterium longum at 40°C gave a concentrated product solution (155 g/L; 460 mM) from which pure AA-2G was recovered in ∼50% overall yield, so providing the basis for an advanced production process...
April 20, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28425316/carbon-covered-mesoporous-silica-and-its-application-in-rhodamine-b-adsorption
#12
R C S Nascimento, A O S Silva, L Meili
Modified versions of MCM-41 and SBA-15 were obtained from sucrose by carbon deposition. The ability of the resulting materials, MCM-41 CC and SBA-15 CC, to remove Rhodamine B from aqueous solutions was evaluated. TG/DTG, XRD, Nitrogen Adsorption (BET), and SEM were used to characterize the materials. Adsorption was investigated by finite bath studies. To characterize the adsorption behavior and mechanism, kinetics and equilibrium were assessed. MCM-41 CC provided the best adsorption results: adsorptive capacity of 11...
April 20, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28424709/evolutionary-analysis-of-snf1-related-protein-kinase2-snrk2-and-calcium-sensor-scs-gene-lineages-and-dimerization-of-rice-homologs-suggest-deep-biochemical-conservation-across-angiosperms
#13
Lynn D Holappa, Pamela C Ronald, Elena M Kramer
Members of the sucrose non-fermenting related kinase Group2 (SnRK2) subclasses are implicated in both direct and indirect abscisic acid (ABA) response pathways. We have used phylogenetic, biochemical, and transient in vivo approaches to examine interactions between Triticum tauschii protein kinase 1 (TtPK1) and an interacting protein, Oryza sativa SnRK2-calcium sensor (OsSCS1). Given that TtPK1 has 100% identity with its rice ortholog, osmotic stress/ABA-activated protein kinase (OsSAPK2), we hypothesized that the SCS and TtPK1 interactions are present in both wheat and rice...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424671/functional-characterization-and-conditional-regulation-of-the-type-vi-secretion-system-in-vibrio-fluvialis
#14
Yuanming Huang, Pengcheng Du, Meng Zhao, Wei Liu, Yu Du, Baowei Diao, Jie Li, Biao Kan, Weili Liang
Vibrio fluvialis is an emerging foodborne pathogen of increasing public health concern. The mechanism(s) that contribute to the bacterial survival and disease are still poorly understood. In other bacterial species, type VI secretion systems (T6SSs) are known to contribute to bacterial pathogenicity by exerting toxic effects on host cells or competing bacterial species. In this study, we characterized the genetic organization and prevalence of two T6SS gene clusters (VflT6SS1 and VflT6SS2) in V. fluvialis. VflT6SS2 harbors three "orphan" hcp-vgrG modules and was more prevalent than VflT6SS1 in our isolates...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28424519/mechanism-of-chromatin-remodelling-revealed-by-the-snf2-nucleosome-structure
#15
Xiaoyu Liu, Meijing Li, Xian Xia, Xueming Li, Zhucheng Chen
Chromatin remodellers are helicase-like, ATP-dependent enzymes that alter chromatin structure and nucleosome positions to allow regulatory proteins access to DNA. Here we report the cryo-electron microscopy structure of chromatin remodeller Switch/sucrose non-fermentable (SWI2/SNF2) from Saccharomyces cerevisiae bound to the nucleosome. The structure shows that the two core domains of Snf2 are realigned upon nucleosome binding, suggesting activation of the enzyme. The core domains contact each other through two induced Brace helices, which are crucial for coupling ATP hydrolysis to chromatin remodelling...
April 19, 2017: Nature
https://www.readbyqxmd.com/read/28423943/high-value-added-lipids-produced-by-microorganisms-a-potential-use-of-sugarcane-vinasse
#16
Bruna Soares Fernandes, João Paulo Fernandes Vieira, Fabiano Jares Contesini, Paulo Eduardo Mantelatto, Marcelo Zaiat, José Geraldo da Cruz Pradella
This review aims to present an innovative concept of high value added lipids produced by heterotrophic microorganisms, bacteria and fungi, using carbon sources, such as sugars, acids and alcohols that could come from sugarcane vinasse, which is the main byproduct from ethanol production that is released in the distillation step. Vinasse is a rich carbon source and low-cost feedstock produced in large amounts from ethanol production. In 2019, the Brazilian Ministry of Agriculture, Livestock and Food Supply estimates that growth of ethanol domestic consumption will be 58...
April 20, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28423886/adiponectin-induced-ampk-impairment-mediates-insulin-resistance-in-bama-mini-pig-fed-high-fat-and-high-sucrose-diet
#17
Miaomiao Niu, Lei Xiang, Yaqian Liu, Yuqiong Zhao, Jifang Yuan, Xin Dai, Hua Chen
Objective: Adipose tissue is no longer considered as an inert storage organ for lipid, but instead is thought to play an active role in regulating insulin effects via secretion adipokines. However, conflicting reports have emerged regarding the effects of adipokines. In this study, we investigated the role of adipokines in glucose metabolism and insulin sensitivity in obese Bama mini-pigs. Methods: An obesity model was established in Bama mini-pigs, by feeding with high-fat and high-sucrose diet for 30 weeks...
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28423032/complete-study-demonstrating-the-absence-of-rhabdovirus-in-a-distinct-sf9-cell-line
#18
Yoshifumi Hashimoto, Daniel Macri, Indresh Srivastava, Clifton McPherson, Rachael Felberbaum, Penny Post, Manon Cox
A putative novel rhabdovirus (SfRV) was previously identified in a Spodoptera frugiperda cell line (Sf9 cells [ATCC CRL-1711 lot 58078522]) by next generation sequencing and extensive bioinformatic analysis. We performed an extensive analysis of our Sf9 cell bank (ATCC CRL-1711 lot 5814 [Sf9L5814]) to determine whether this virus was already present in cells obtained from ATCC in 1987. Inverse PCR of DNA isolated from Sf9 L5814 cellular DNA revealed integration of SfRV sequences in the cellular genome. RT-PCR of total RNA showed a deletion of 320 nucleotides in the SfRV RNA that includes the transcriptional motifs for genes X and L...
2017: PloS One
https://www.readbyqxmd.com/read/28422509/%C3%AE-glucosidase-inhibitors-from-salvia-circinata
#19
Laura Flores-Bocanegra, Martin González-Andrade, Robert Bye, Edelmira Linares, Rachel Mata
A dried infusion prepared from the aerial parts of Salvia circinata did not provoke acute toxicity in mice (LD50 > 5 g/kg). This infusion showed poor hypoglycemic and antihyperglycemic effects (100-570 mg/kg) when tested in normal and hyperglycemic mice using acute and oral glucose tolerance tests, respectively. However, this infusion possessed antihyperglycemic action in vivo during an oral sucrose tolerance test (31.6-316 mg/kg), suggesting the presence of α-glucosidase inhibitors in S. circinata. Fractionation of a nonpolar extract of the aerial parts of the plant yielded a new biflavone (1) and four new neoclerodane diterpenoid glucosides (2-5) along with the known compounds amarisolide (6), pedalitin (7), apigenin-7-O-β-d-glucoside (8), and the flavone 2-(3,4-dimethoxyphenyl)-5,6-dihydroxy-7-methoxy-4H-chromen-4-one (9)...
April 19, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28421510/appendix-f-quinn-s-advantage-embryo-freeze-kit
#20
Kiri Beilby, Patrick Quinn
Despite a large focus on the use of vitrification to cryopreserve embryos in recent years, there are still arguments for the use of slow freezing for the cleavage-stage embryo. Having said this, there are lessons to be learned from the process of vitrification that could be applied to slow freezing to improve post-thaw survival and ultimately clinical pregnancy rates. Specifically, increasing the concentration of sucrose in the freezing solution from 0.1 to 0.2 M and subsequently increasing the sucrose concentrations in thawing solutions could prove beneficial...
2017: Methods in Molecular Biology
keyword
keyword
26978
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"