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https://www.readbyqxmd.com/read/28214853/chronic-consumption-of-artificial-sweetener-in-packets-or-tablets-and-type-2-diabetes-risk-evidence-from-the-e3n-european-prospective-investigation-into-cancer-and-nutrition-study
#1
Guy Fagherazzi, Gaëlle Gusto, Aurélie Affret, Francesca Romana Mancini, Courtney Dow, Beverley Balkau, Françoise Clavel-Chapelon, Fabrice Bonnet, Marie-Christine Boutron-Ruault
BACKGROUND: The influence of artificial sweeteners on metabolic diseases is controversial. Artificially sweetened beverages have been associated with an increased risk of type 2 diabetes (T2D) but biases and reverse causation have been suspected to have influenced the observed association. In addition, it has been suggested that investigation into the relationship between the frequency and duration of the consumption of packet or tablet artificial sweeteners and T2D risk is necessary...
February 18, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28210884/energy-balance-and-obesity-what-are-the-main-drivers
#2
Isabelle Romieu, Laure Dossus, Simón Barquera, Hervé M Blottière, Paul W Franks, Marc Gunter, Nahla Hwalla, Stephen D Hursting, Michael Leitzmann, Barrie Margetts, Chizuru Nishida, Nancy Potischman, Jacob Seidell, Magdalena Stepien, Youfa Wang, Klaas Westerterp, Pattanee Winichagoon, Martin Wiseman, Walter C Willett
PURPOSE: The aim of this paper is to review the evidence of the association between energy balance and obesity. METHODS: In December 2015, the International Agency for Research on Cancer (IARC), Lyon, France convened a Working Group of international experts to review the evidence regarding energy balance and obesity, with a focus on Low and Middle Income Countries (LMIC). RESULTS: The global epidemic of obesity and the double burden, in LMICs, of malnutrition (coexistence of undernutrition and overnutrition) are both related to poor quality diet and unbalanced energy intake...
February 17, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28202779/fasting-mimicking-diet-and-markers-risk-factors-for-aging-diabetes-cancer-and-cardiovascular-disease
#3
Min Wei, Sebastian Brandhorst, Mahshid Shelehchi, Hamed Mirzaei, Chia Wei Cheng, Julia Budniak, Susan Groshen, Wendy J Mack, Esra Guen, Stefano Di Biase, Pinchas Cohen, Todd E Morgan, Tanya Dorff, Kurt Hong, Andreas Michalsen, Alessandro Laviano, Valter D Longo
Calorie restriction or changes in dietary composition can enhance healthy aging, but the inability of most subjects to adhere to chronic and extreme diets, as well as potentially adverse effects, limits their application. We randomized 100 generally healthy participants from the United States into two study arms and tested the effects of a fasting-mimicking diet (FMD)-low in calories, sugars, and protein but high in unsaturated fats-on markers/risk factors associated with aging and age-related diseases. We compared subjects who followed 3 months of an unrestricted diet to subjects who consumed the FMD for 5 consecutive days per month for 3 months...
February 15, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28194834/steering-siglec-sialic-acid-interactions-on-living-cells-using-bioorthogonal-chemistry
#4
Christian Büll, Torben Heise, Niek van Hilten, Johan F A Pijnenborg, Victor Bloemendal, Lotte Gerrits, Esther D Kers-Rebel, Tina Ritschel, Martijn H den Brok, Gosse J Adema, Thomas J Boltje
Sialic acid sugars that terminate cell-surface glycans form the ligands for the sialic acid binding immunoglobulin-like lectin (Siglec) family, which are immunomodulatory receptors expressed by immune cells. Interactions between sialic acid and Siglecs regulate the immune system, and aberrations contribute to pathologies like autoimmunity and cancer. Sialic acid/Siglec interactions between living cells are difficult to study owing to a lack of specific tools. Here, we report a glycoengineering approach to remodel the sialic acids of living cells and their binding to Siglecs...
February 14, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28193212/corticomedullary-mixed-tumour-resembling-a-small-adrenal-gland-involvement-of-cancer-stem-cells-case-report
#5
Lian Duan, Fang Fang, Wanlei Fu, Zhenqiang Fang, Hui Wang, Shicang Yu, Zili Tang, Zhenqi Liu, Hongting Zheng
BACKGROUND: Adrenal corticomedullary mixed tumours are very rare. Its mechanism is rarely reported. Here we report the first case of a corticomedullary mixed tumour resembling a "small adrenal gland" with distinct arrangement of the cortical and medullary layers. We further hypothesize regarding the tumorigenic mechanism of this tumour. CASE PRESENTATION: A 58-year man had been diagnosed with diabetes and hypertension for 3 years. His 24-h urine vanillylmandelic acid (VMA) levels were slightly elevated...
February 13, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28192414/selective-in-vivo-metabolic-cell-labeling-mediated-cancer-targeting
#6
Hua Wang, Ruibo Wang, Kaimin Cai, Hua He, Yang Liu, Jonathan Yen, Zhiyu Wang, Ming Xu, Yiwen Sun, Xin Zhou, Qian Yin, Li Tang, Iwona T Dobrucki, Lawrence W Dobrucki, Eric J Chaney, Stephen A Boppart, Timothy M Fan, Stéphane Lezmi, Xuesi Chen, Lichen Yin, Jianjun Cheng
Distinguishing cancer cells from normal cells through surface receptors is vital for cancer diagnosis and targeted therapy. Metabolic glycoengineering of unnatural sugars provides a powerful tool to manually introduce chemical receptors onto the cell surface; however, cancer-selective labeling still remains a great challenge. Herein we report the design of sugars that can selectively label cancer cells both in vitro and in vivo. Specifically, we inhibit the cell-labeling activity of tetraacetyl-N-azidoacetylmannosamine (Ac4ManAz) by converting its anomeric acetyl group to a caged ether bond that can be selectively cleaved by cancer-overexpressed enzymes and thus enables the overexpression of azido groups on the surface of cancer cells...
February 13, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28179486/serum-25-hydroxyvitamin-d-has-a-modest-positive-association-with-leukocyte-telomere-length-in-middle-aged-us-adults
#7
Julia Beilfuss, Carlos A Camargo, Elena Kamycheva
Background: Vitamin D deficiency has been linked to all-cause mortality and cancer. However, the biological plausibility of these associations is not well established. Leukocyte telomere length (LTL) shortening is associated with aging and is a hallmark of genomic instability and carcinogenesis.Objective: We aimed to investigate the association between serum 25-hydroxyvitamin D [25(OH)D] concentrations and LTL in the general US population.Methods: We analyzed data from the US NHANES 2001-2002. The study population comprised 1542 younger adults (aged 20-39 y), 1336 middle-aged adults (aged 40-59 y), and 1382 older adults (aged ≥60 y)...
February 8, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28178952/study-of-phytochemical-anti-microbial-anti-oxidant-and-anti-cancer-properties-of-allium-wallichii
#8
Jaya Bhandari, BushraTaj Muhammad, Pratiksha Thapa, Bhupal Govinda Shrestha
BACKGROUND: There is growing interest in the use of plants for the treatment and prevention of cancer. Medicinal plants are currently being evaluated as source of promising anticancer agents. In this paper, we have investigated the anticancer potential of plant Allium wallichii, a plant native to Nepal and growing at elevations of 2300-4800 m. This is the first study of its kind for the plant mentioned. METHODS: The dried plant was extracted in aqueous ethanol. Phytochemical screening, anti-microbial assay, anti-oxidant assay, cytotoxicity assay and the flow-cytometric analysis were done for analyzing different phytochemicals present, anti-microbial activity, anti-oxidant activity and anti-cancer properties of Allium wallichii...
February 8, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28174710/sugar-coated-proteins-pave-the-way-to-improving-pancreatic-cancer-diagnosis
#9
EDITORIAL
Murray Korc
No abstract text is available yet for this article.
March 2016: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28165394/socio-demographic-determinants-of-diet-quality-in-australian-adults-using-the-validated-healthy-eating-index-for-australian-adults-heifa-2013
#10
Amanda Grech, Zhixian Sui, Hong Ying Siu, Miaobing Zheng, Margaret Allman-Farinelli, Anna Rangan
Diet quality indices have been shown to predict cardiovascular disease, cancer, Type 2 Diabetes, obesity and all-cause mortality. This study aimed to determine the socio-demographics of Australian adults with poor diet quality. Diet quality was assessed for participants of the 2011-2012 National Nutrition and Physical Activity Survey aged 18 years or above (n = 9435), with the validated 11-component Healthy Eating Index for Australians (HEIFA-2013), based on the 2013 Australian Dietary Guidelines. Differences in scores by demographics (ANOVA) and regression models for associations between the HEIFA-2013 score and demographic characteristics were conducted...
February 4, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28159216/recent-advances-in-plant-mediated-engineered-gold-nanoparticles-and-their-application-in-biological-system
#11
REVIEW
Khwaja Salahuddin Siddiqi, Azamal Husen
For biosynthesis of gold nanoparticles different parts of a plant are used as they contain metabolites such as alkaloids, flavonoids, phenols, terpenoids, alcohols, sugars and proteins which act as reducing agents to produce nanoparticles. They also act as capping agent and stabilizer for them. They are used in medicine, agriculture and many other technologies. The attention is therefore focussed on all plant species which have either aroma or colour in their leaves, flowers or roots for the synthesis of nanoparticles because they all contain such chemicals which reduce the metal ions to metal nanoparticles...
March 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28150350/nutrient-intakes-and-compliance-with-nutrient-recommendations-in-children-aged-1-4-years-in-ireland
#12
J Walton, L Kehoe, B A McNulty, A P Nugent, A Flynn
BACKGROUND: The early childhood years represent a period of rapid growth and development characterised by unique requirements for energy and individual nutrients. METHODS: The present study uses data from the National Pre-School Nutrition Survey, a nationally representative sample of Irish children (1-4 years) (n = 500), aiming to estimate energy and nutrient intakes across age and compliance with recommendations (UK and European). A 4-day weighed food-record was used to collect dietary data and statistical modelling (National Cancer Institute method) was applied to estimate usual nutrient intakes...
February 2, 2017: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/28147308/mono-functionalized-glycosylated-platinum-iv-complexes-possessed-both-ph-and-redox-dual-responsive-properties-exhibited-enhanced-safety-and-preferentially-accumulated-in-cancer-cells-in%C3%A2-vitro-and-in%C3%A2-vivo
#13
Jing Ma, Xiande Yang, Wenpei Hao, Zhonglv Huang, Xin Wang, Peng George Wang
A serious of carbohydrate-conjugated platinum(IV) complexes in the form Pt(L2)(A2)(OH)R based on the clinical drug cisplatin and oxaliplatin were designed, synthesized and evaluated as antitumor agents in vitro and in vivo. The conjugates possessing both pH and redox dual-responsive properties exhibited more potent cytotoxicity in seven different human cancer cell lines and lower toxicity to the normal 3T3 cells than cisplatin, oxaliplatin and even the reported bis-functionalized glycosylated platinum(IV) complexes indicating the enhanced safety of the sugar conjugates...
January 23, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28135570/the-structure-of-the-lps-o-chain-of-fusobacterium-nucleatum-strain-25586-containing-two-novel-monosaccharides-2-acetamido-2-6-dideoxy-l-altrose-and-a-5-acetimidoylamino-3-5-9-trideoxy-gluco-non-2-ulosonic-acid
#14
Evgeny Vinogradov, Frank St Michael, Andrew D Cox
Fusobacterium nucleatum is an anaerobic bacterium found in the human mouth where it causes periodontitis. Recently, it has been gaining attention as a potential causative agent for colorectal cancer and is strongly linked with pregnancy complications including pre-term and still births. Little is known about the virulence factors of this organism, and thus we have initiated studies to examine the bacterium's surface glycochemistry. We isolated lipopolysaccharide (LPS) from F. nucleatum strain 25586 and purified and performed structural analysis on the O-antigen polysaccharide...
January 9, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28133510/investigation-of-the-regulatory-effects-of-saccharin-on-cytochrome-p450s-in-male-icr-mice
#15
Jun Hyeon Jo, Sunjoo Kim, Tae Won Jeon, Tae Cheon Jeong, Sangkyu Lee
Saccharin, the first artificial sweetener, was discovered in 1879 that do not have any calories and is approximately 200~700 times sweeter than sugar. Saccharin was the most common domestically produced sweetener in Korea in 2010, and it has been used as an alternative to sugar in many products. The interaction between artificial sweeteners and drugs may affect the drug metabolism in patients with diabetes, cancer, and liver damage, this interaction has not been clarified thus far. Here, we examined the effects of the potential saccharin-drug interaction on the activities of 5 cytochrome P450 (CYPs) in male ICR mice; further, we examined the effects of saccharin (4,000 mg/kg) on the pharmacokinetics of bupropion after pretreatment of mice with saccharin for 7 days and after concomitant administration of bupropion and saccharin...
January 2017: Toxicological Research
https://www.readbyqxmd.com/read/28094181/the-oxidative-induction-of-dna-lesions-in-cancer-cells-by-5-thio-d-glucose-and-6-thio-d-fructopyranose-and-their-genotoxic-effects-part-3
#16
Anna Czubatka-Bienkowska, Anna Macieja, Joanna Sarnik, Zbigniew J Witczak, Tomasz Poplawski
Thio-sugars have been described as potent inhibitors of cancer cell growth but the detailed mechanism of action remains unknown. Herein we investigated the mechanism of their anticancer action in the HeLa cell line. We investigated two thio-sugars: 5-thio-d-glucose (FCP1) and 6-thio-β-d-fructopyranose (FCP2). We have observed that FCP1 as well as FCP2 clearly induced oxidative DNA lesions in cancer cells and increased the level of cellular ROS. A spin trap and antioxidants have decreased the level of DNA lesions induced by FCPs...
January 7, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28088584/proton-pump-inhibition-and-cancer-therapeutics-a-specific-tumor-targeting-or-it-is-a-phenomenon-secondary-to-a-systemic-buffering
#17
REVIEW
Enrico Spugnini, Stefano Fais
One of the unsolved mysteries in oncology includes the strategies that cancer cells adopt to cope with an adverse microenvironment. However, we knew, from the Warburg's discovery that through their metabolism based on sugar fermentation, cancer cells acidify their microenvironment and this progressive acidification induces a selective pressure, leading to the development of very malignant cells entirely armed to survive in the hostile microenvironment generated by their own metabolism. In the last decades a primordial role for proton exchangers has been supported as a key tumor advantage in facing off the acidic milieu...
January 11, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28087410/repair-of-8-oxog-a-mismatches-by-the-mutyh-glycosylase-mechanism-metals-and-medicine
#18
REVIEW
Douglas M Banda, Nicole N Nuñez, Michael A Burnside, Katie M Bradshaw, Sheila S David
Reactive oxygen and nitrogen species (RONS) may infringe on the passing of pristine genetic information by inducing DNA inter- and intra-strand crosslinks, protein-DNA crosslinks, and chemical alterations to the sugar or base moieties of DNA. 8-Oxo-7,8-dihydroguanine (8-oxoG) is one of the most prevalent DNA lesions formed by RONS and is repaired through the base excision repair (BER) pathway involving the DNA repair glycosylases OGG1 and MUTYH in eukaryotes. MUTYH removes adenine (A) from 8-oxoG:A mispairs, thus mitigating the potential of G:C to T:A transversion mutations from occurring in the genome...
January 10, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28086850/the-prevalence-trend-of-metabolic-syndrome-and-its-components-and-risk-factors-in-korean-adults-results-from-the-korean-national-health-and-nutrition-examination-survey-2008-2013
#19
Binh Thang Tran, Bo Yoon Jeong, Jin-Kyoung Oh
BACKGROUND: Abnormalities in the clinical markers of metabolic syndrome (MS) are associated with the development of cardiovascular disease, type 2 diabetes mellitus, and some cancers. MS prevalence in Korea increased between the mid-1990s and mid-2000s; however, no data on the recent trends of MS prevalence are available. Thus, we aimed to investigate the prevalence of MS, the five components of MS, and the related risk factors in Korean adults by using recent data. METHODS: Data from the Korean National Health and Nutrition Examination Survey conducted between 2008 and 2013 were used...
January 13, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28075401/anti-neuroblastoma-properties-of-a-recombinant-sunflower-lectin
#20
Marcela Pinedo, Melanie Genoula, María Ximena Silveyra, André De Oliveira Carvalho, Mariana Regente, Marianela Del Río, Júlia Ribeiro Soares, Valdirene Moreira Gomes, Laura De La Canal
According to their sugar recognition specificity, plant lectins are proposed as bioactive proteins with potential in cancer treatment and diagnosis. Helja is a mannose-specific jacalin-like lectin from sunflower which was shown to inhibit the growth of certain fungi. Here, we report its recombinant expression in a prokaryotic system and its activity in neurobalstoma cells. Helja coding sequence was fused to the pET-32 EK/LIC, the enterokinase/Ligation-independent cloning vector and a 35 kDa protein was obtained in Escherichia coli representing Helja coupled to thioredoxin (Trx)...
January 10, 2017: International Journal of Molecular Sciences
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