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https://www.readbyqxmd.com/read/28549217/surface-enhanced-raman-scattering-active-gold-nanoparticles-with-enzyme-mimicking-activities-for-measuring-glucose-and-lactate-in-living-tissues
#1
Yihui Hu, Hanjun Cheng, Xiaozhi Zhao, Jiangjiexing Wu, Faheem Muhammad, Shichao Lin, Jian He, Liqi Zhou, Chengping Zhang, Yu Deng, Peng Wang, Zhengyang Zhou, Shuming Nie, Hui Wei
Gold nanoparticles (AuNPs) with simultaneous plasmonic and biocatalytic properties provide a promising approach to developing versatile bioassays. However, the combination of AuNPs' intrinsic enzyme mimicking properties with their surface-enhanced Ra-man scattering (SERS) activities has yet to be explored. Here we designed a peroxidase mimicking nanozyme by in situ growing AuNPs into a highly porous and thermally stable metal-organic framework (MOF) called MIL-101. The obtained AuNPs@MIL-101 nanozymes acted as the peroxidase mimics to oxidize Raman inactive reporter leucomalachite green (LMG) into the active malachite green (MG) with hydrogen peroxide, and simultaneously as the SERS substrates to enhance the Raman signals of the as-produced MG...
May 26, 2017: ACS Nano
https://www.readbyqxmd.com/read/28548968/aldose-reductase-interacts-with-akt1-to-augment-hepatic-akt-mtor-signaling-and-promote-hepatocarcinogenesis
#2
Jia-Xing Zhao, Ya-Wei Yuan, Cheng-Fu Cai, Dong-Yan Shen, Mao-Li Chen, Feng Ye, Yan-Jun Mi, Qi-Cong Luo, Wang-Yu Cai, Wei Zhang, Ying Long, Yong Zeng, Guo-Dong Ye, Shu-Yu Yang
Marked up-regulation of aldose reductase (AR) is reportedly associated with the development of hepatocellular carcinoma (HCC). We investigated how aberrantly overexpressed AR might promote oncogenic transformation in liver cells and tissues. We found that overexpressed AR interacted with the kinase domain of AKT1 to increase AKT/mTOR signaling. In both cultured liver cancer cells and liver tissues in DEN-induced transgenic HCC model mice, we observed that AR overexpression-induced AKT/mTOR signaling tended to enhance lactate formation and hepatic inflammation to enhance hepatocarcinogenesis...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28548573/inulin-type-fructan-degradation-capacity-of-clostridium-cluster-iv-and-xiva-butyrate-producing-colon-bacteria-and-their-associated-metabolic-outcomes
#3
F Moens, L De Vuyst
Four selected butyrate-producing colon bacterial strains belonging to Clostridium cluster IV (Butyricicoccus pullicaecorum DSM 23266(T) and Faecalibacterium prausnitzii DSM 17677(T)) and XIVa (Eubacterium hallii DSM 17630 and Eubacterium rectale CIP 105953(T)) were studied as to their capacity to degrade inulin-type fructans and concomitant metabolite production. Cultivation of these strains was performed in bottles and fermentors containing a modified medium for colon bacteria, including acetate, supplemented with either fructose, oligofructose, or inulin as the sole energy source...
May 30, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28548294/comparison-of-productive-and-reproductive-performance-and-hair-cortisol-levels-between-brown-swiss-cross-bred-and-holstein-cows-housed-in-the-same-barn
#4
Natsumi Endo, Reimi Kuroki, Tomomi Tanaka
The productive and reproductive characteristics of Brown Swiss (B) cross-bred cows were investigated by comparing with those of Holstein (H) cows housed in the same barn. Additionally, their hair cortisol levels were analyzed to evaluate the extent of stress experienced during dry and lactation periods. B cross-bred cows had lower milk yields and higher milk fat rates than H cows. Reproductive records showed that days from parturition to first artificial insemination (AI) in B cross-bred (n = 16) and H (n = 27) cows were not significantly different, but conception rate at first AI of B cross-bred cows tended to be higher than that of H cows...
May 26, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28547952/mir-150-up-regulates-glut1-and-increases-glycolysis-in-osteosarcoma-cells
#5
Guangke Yuan, Yanqing Zhao, Dongjin Wu, Chunzheng Gao
Objective: Osteosarcoma (OS) is the most common malignant bone tumor in children and young adults. Many studies have shown that microRNAs play a critical role in proliferation and metastasis with this tumour type. However, whether aberrant expression might contribute to a metabolism switch in osteosarcoma cases is not clearly understood. In this study, we explored expression and function of miR-150 in osteosarcoma cells. Materials and methods: Expression of miR-150 was assessed by real-time PCR in cell lines and human patient tissues...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28547836/does-a-normal-peripheral-lactate-value-always-indicate-an-aerobic-tissue-metabolism
#6
EDITORIAL
Stein Ørn, Gerrit van Hall
No abstract text is available yet for this article.
May 25, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28547667/metalloproteomics-approach-to-analyze-mercury-in-breast-milk-and-hair-samples-of-lactating-women-in-communities-of-the-amazon-basin-brazil
#7
M R Cerbino, José Cavalcante Souza Vieira, C P Braga, G Oliveira, I F Padilha, T M Silva, L F Zara, N J Silva, P M Padilha
Mercury is a potentially toxic element that is present in the environment of the Brazilian Amazon and is responsible for adverse health effects in humans. This study sought to assess possible protein biomarkers of mercury exposure in breast milk samples from lactating women in the Madeira and Negro Rivers in the Brazilian Amazon. The mercury content of hair samples of lactating women was determined, and the proteome of breast milk samples was obtained using two-dimensional electrophoresis after protein precipitation with acetone...
May 25, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28547577/pramipexole-overdose-associated-with-visual-hallucinations-agitation-and-myoclonus
#8
Adeline Cardon-Dunbar, Tom Robertson, Michael S Roberts, Geoffrey K Isbister
INTRODUCTION: Pramipexole is a dopamine D2 receptor agonist used to treat idiopathic Parkinson's disease and primary restless legs syndrome. There is limited information on pramipexole overdose. CASE REPORT: A 59-year-old male ingested 3 mg pramipexole, 2250 mg venlafaxine, 360 mg mirtazapine, with suicidal intent. He presented alert, had normal vital observations and normal pupillary reflexes. He was mildly agitated, reported visual hallucinations and was given 5 mg diazepam...
May 25, 2017: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/28547567/effects-of-electron-acceptors-on-sulphate-reduction-activity-in-activated-sludge-processes
#9
Francisco Rubio-Rincón, Carlos Lopez-Vazquez, Laurens Welles, Tessa van den Brand, Ben Abbas, Mark van Loosdrecht, Damir Brdjanovic
The concentration of sulphate present in wastewater can vary from 10 to 500 mg SO4(2-)/L. During anaerobic conditions, sulphate is reduced to sulphide by sulphate-reducing bacteria (SRB). Sulphide generation is undesired in wastewater treatment plants (WWTPs). Previous research indicated that SRB are inhibited by the presence of electron acceptors (such as O2, NO3 and NO2). However, the contact times and concentrations used in those studies are by far higher than occur in WWTPs. Since sulphide can influence the biological nitrogen and phosphorus removal processes, this research aimed to understand how the different electron acceptors commonly present in biological nutrient removal (BNR) systems can affect the proliferation of SRB...
May 25, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28546800/hyperprolactinaemia-a-problem-in-patients-from-the-reproductive-period-to-the-menopause
#10
Sylwia Pałubska, Aneta Adamiak-Godlewska, Izabela Winkler, Katarzyna Romanek-Piva, Tomasz Rechberger, Marek Gogacz
Hyperprolactinaemia especially affects women in reproductive age (90/100,000) but also often is diagnosed in menopause age and leads to disturbances in functioning of LH-RH neurons and, as a consequence, to a decrease of FSH and LH, which causes inhibition of oestradiol production. Prolactin is a peptide hormone, phylogenetically one of the oldest, stimulating cells of various organs, which is produced and secreted mainly by lactotrophic acidophilic cells of the anterior lobe of the pituitary. It influences the increase in the mass of the mammary glands, and stimulation and maintenance of lactation after delivery...
March 2017: Przeglad Menopauzalny, Menopause Review
https://www.readbyqxmd.com/read/28545652/using-quality-improvement-to-increase-human-milk-use-for-preterm-infants
#11
Margaret G Parker, Aloka L Patel
This review will provide an overview of quality improvement methods that have been used to improve human milk use (mother's own milk and donor milk) for very low-birth-weight infants in the hospital setting in the last decade. We will review the following: (1) evidence-based practices known to increase mother's own milk for very low-birth-weight infants; (2) individual hospitals with exemplary lactation programs and past and current US-based statewide quality improvement collaboratives focused on increasing mother's own milk; and (3) existing quality metrics for human milk and gaps in metrics...
May 23, 2017: Seminars in Perinatology
https://www.readbyqxmd.com/read/28545485/bacteriological-etiology-and-treatment-of-mastitis-in-finnish-dairy-herds
#12
Johanna Vakkamäki, Suvi Taponen, Anna-Maija Heikkilä, Satu Pyörälä
BACKGROUND: The Finnish dairy herd recording system maintains production and health records of cows and herds. Veterinarians and farmers register veterinary treatments in the system. Milk samples for microbiological analysis are routinely taken from mastitic cows. The laboratory of the largest dairy company in Finland, Valio Ltd., analyzes most samples using real-time PCR. This study addressed pathogen-specific microbiological data and treatment and culling records, in combination with cow and herd characteristics, from the Finnish dairy herd recording system during 2010-2012...
May 25, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28545280/-impacts-of-early-metoprolol-intervention-on-connexin-43-and-phosphorylated-connexin-43-expression-in-rabbits-with-experimental-myocardial-infarction
#13
M Zhou, Q Lu, J Q Jiang, Z N Chen, Z G Gong, Z G Li, W W Fu, S F Ding
Objective: To investigate the early intervention effects of metoprolol on connexin 43(Cx43) and phosphorylated Cx43 (p-Cx43) expression in rabbits with post myocardial infarction. Methods: A total of 24 adult male New Zealand white rabbits were divided into sham group (n=6), early treatment group(n=6), routine treatment group(n=6), and myocardial infarction group(n=6) with a randomized block design blocked by weight. Myocardial infarction was induced by left anterior descending coronary artery (LAD) ligation...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28545153/polyphenols-and-iugr-pregnancies-maternal-hydroxytyrosol-supplementation-improves-prenatal-and-early-postnatal-growth-and-metabolism-of-the-offspring
#14
Marta Vazquez-Gomez, Consolación Garcia-Contreras, Laura Torres-Rovira, José Luis Pesantez, Pedro Gonzalez-Añover, Ernesto Gomez-Fidalgo, Raúl Sanchez-Sanchez, Cristina Ovilo, Beatriz Isabel, Susana Astiz, Antonio Gonzalez-Bulnes
Hydroxytyrosol is a polyphenol with antioxidant, metabolism-regulatory, anti-inflammatory and immuno-modulatory properties. The present study aimed to determine whether supplementing the maternal diet with hydroxytyrosol during pregnancy can improve pre- and early post-natal developmental patterns and metabolic traits of the offspring. Experiment was performed in Iberian sows fed a restricted diet in order to increase the risk of IUGR. Ten sows were treated daily with 1.5 mg of hydroxytyrosol per kg of feed between Day 35 of pregnancy (30% of total gestational period) until delivery whilst 10 animals were left untreated as controls...
2017: PloS One
https://www.readbyqxmd.com/read/28544933/cardiotoxic-effect-of-levofloxacin-and-ciprofloxacin-in-rats-with-without-acute-myocardial-infarction-impact-on-cardiac-rhythm-and-cardiac-expression-of-kv4-3-kv1-2-and-nav1-5-channels
#15
Ahmed M Abdelrady, Sawsan A Zaitone, Noha E Farag, Manal S Fawzy, Yasser M Moustafa
Prolongation of QT interval is possible with fluoroquinolones, yet the underlying contributing factors have not been elucidated. Two widely used fluoroquinolone drugs were at the focus of this study in rats with/without acute myocardial dysfunction (AMI) induced by isoproterenol. The effects of levofloxacin and ciprofloxacin on the cardiac mRNA expression of rat Kv4.3, Kv1.2 and Nav1.5 mRNAs were determined. Administration of the two antibiotics produced dose-dependent changes in ECG parameters that were more prominent in rats with AMI than healthy rats; this was accompanied by elevations in serum lactate dehydrogenase and creatine kinase-MB...
May 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28544917/effective-and-safe-mannitol-administration-in-patients-undergoing-supratentorial-tumor-surgery-a-prospective-randomized-and-double-blind-study
#16
Eren Fatma Akcil, Ozlem Korkmaz Dilmen, Esra Sultan Karabulut, Serdar Selcuk Koksal, Fatis Altindas, Yusuf Tunali
OBJECTIVES: Although osmotic diuresis with mannitol is commonly used to provide brain relaxation, there is no consensus regarding its optimal dose and combination with loop diuretics. The aim of the present study is to evaluate the effects of mannitol and combination of furosemide with different doses of mannitol on brain relaxation and on blood electrolytes, lactate level, urine output, fluid balance and blood osmolarity in patients undergoing supratentorial tumor surgery. PATIENTS AND METHODS: This prospective, randomized, double blind, placebo-controlled study included 51 patients (ASA I-III) scheduled for elective supratentorial craniotomy...
May 15, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28544872/analysis-of-the-igf-system-in-milk-from-farm-animals-occurrence-regulation-and-biomarker-potential
#17
REVIEW
Zianka Meyer, Christine Höflich, Elisa Wirthgen, Sven Olm, Harald M Hammon, Andreas Hoeflich
IGFs and IGF-binding proteins (IGFBPs) are abundantly present in milk and in dairy products. Compared to the IGFs, the IGFBP have received less attention in milk, although truncated IGFBPs and IGFBP-glycosylation have been described in milk. Thereby, complex control of local IGF-effects can be assumed on the levels of IGFBPs, proteases, and protease inhibitors. The present review collects the current knowledge both on presence and regulation of IGFs and IGFBPs in milk particularly from dairy animal species...
May 12, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28544762/the-effect-of-a-tooth-tongue-gel-and-mouthwash-regimen-on-morning-oral-malodour-a-3-week-single-blind-randomized-clinical-trial
#18
E Van der Sluijs, G A Van der Weijden, N L Hennequin-Hoenderdos, D E Slot
AIM: To compare the effects of a regimen consisting of a tooth/tongue gel, tongue cleaner and mouthwash with the effects of using standard fluoride dentifrice on the organoleptic oral malodour score (ORG) and volatile sulphur compounds (VSCs). MATERIALS AND METHODS: A total, 66 non-dental students participated in a 3-week parallel, single-blind, randomized, controlled clinical trial. The test group used a tongue cleaner, a tooth/tongue gel and mouthwash containing amine fluoride/stannous fluoride and zinc lactate as oral malodour counteractive...
May 24, 2017: International Journal of Dental Hygiene
https://www.readbyqxmd.com/read/28544379/a-widened-substrate-selectivity-filter-of-eukaryotic-formate-nitrite-transporters-enables-high-level-lactate-conductance
#19
Marie Wiechert, Holger Erler, André Golldack, Eric Beitz
Bacterial formate-nitrite transporters (FNT) regulate the metabolic flow of small weak mono-acids derived from anaerobic mixed-acid fermentation, such as formate, and further transport nitrite, and hydrosulfide. The eukaryotic Plasmodium falciparum FNT is vital for the malaria parasite by its ability to release the larger l-lactate substrate as the metabolic end product of anaerobic glycolysis in symport with protons preventing cytosolic acidification. However, the molecular basis for substrate discrimination by FNTs has remained unclear...
May 21, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28544241/effect-of-rrr-%C3%AE-tocopherol-supplementation-on-serum-of-breastfeeding-women-up-to-60-days-after-delivery-a-randomised-controlled-trial
#20
L Q Lira, C S S Gurgel, A L de Sousa, A G A da Silva, J C Padovam, M N Moia, R L M Silva, R Dimenstein
BACKGROUND: Maternal supplementation is a viable strategy to combat vitamin E deficiency in newborns, although a protocol for maternal vitamin E supplementation has not been defined. The present study assessed the effect of maternal supplementation in a single dose on the serum of postpartum women up to 60 days after delivery. METHODOLOGY: Fifty healthy breastfeeding women were recruited at two maternity hospitals both located in Natal, RN, Brazil. The participants were randomly allocated to a control group and a treatment group in a 1 : 1 ratio...
May 23, 2017: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
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