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https://www.readbyqxmd.com/read/29165357/new-metabolites-of-coumarin-detected-in-human-urine-using-ultra-performance-liquid-chromatography-quadrupole-time-of-flight-tandem-mass-spectrometry
#1
Letícia Paula Leonart, João Cleverson Gasparetto, Flávia Lada Degaut Pontes, Letícia Bonancio Cerqueira, Thais Martins Guimarães de Francisco, Roberto Pontarolo
Coumarin (1,2-benzopyrone) is a natural compound whose metabolism in humans was established in the 1970s. However, a new metabolite was recently identified in human plasma, indicating that the metabolism of coumarin has not been completely elucidated. To complement the knowledge of its metabolism, a rapid and sensitive method using UPLC-QTOF-MS was developed. A total of 12 metabolites was identified using MetaboLynxTM software, including eight metabolites not previously reported in human urine. The identified biotransformation included hydroxylation, glucuronidation, sulfation, methylation, and conjugation with N-acetylcysteine...
November 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29154389/latent-autoimmune-diabetes-and-limbic-encephalitis-with-antibodies-against-glutamic-acid-decarboxylase
#2
Stoyan Popkirov, Seena Sebastian, Fatme Seval Ismail, Jörg Wellmer
Antibodies against glutamic acid decarboxylase (GAD) are a hallmark of type 1 diabetes and its late-onset variant, latent autoimmune diabetes of the adult (LADA).(1) While cerebrovascular disease and dementia are common causes of cognitive dysfunction and neurological deficits in diabetic patients,(2,3) rare autoimmune disorders of the central nervous system such as stiff-person syndrom or limbic encephalits can also occur on the basis of shared GAD autoimmunity.(4,5).
November 20, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/29142136/size-composition-and-evolution-of-hiv-dna-populations-during-early-antiretroviral-therapy-and-intensification-with-maraviroc
#3
Antoine Chaillon, Sara Gianella, Steven M Lada, Josué Perez-Santiago, Parris Jordan, Caroline Ignacio, Maile Karris, Douglas Richman, Sanjay R Mehta, Susan J Little, Joel O Wertheim, Davey M Smith
Residual viremia is common during antiretroviral therapy (ART), and could be caused by ongoing low-level virus replication or by release of viral particles from infected cells. ART Intensification should impact ongoing viral propagation but not virion release. Eighteen acutely infected men were enrolled in a randomized controlled trial, and followed for a median of 107 weeks. Participants started ART with (n=9) or without (n=9) intensification with maraviroc (MVC) within 90 days of infection. Levels of HIV DNA and cell-free RNA were quantified by droplet digital PCR...
November 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29140495/traditional-and-complementary-medicine-in-pediatric-oncology-and-low-middle-income-countries-recommendations-from-the-international-society-of-pediatric-oncology-siop-t-cm-collaborative
#4
Elena J Ladas, Stacey Marjerrison, Brijesh Arora, Peter B Hesseling, Roberta Ortiz, Federico Antillon, Shalini Jatia, Glenn M Afungchwi
Significant strides have been made in the treatment of childhood cancer. Improvements in survival have led to increased attention toward supportive care indications; including the use of traditional and complementary medicine (T&CM). The use of T&CM among children and adolescents with cancer is well documented in both high-income countries (HICs) and low-middle income countries (LMICs). A higher incidence of the use of T&CM has been reported among children undergoing treatment in LMICs, which has elevated concerns related to drug interactions, adherence to therapy, and treatment-related toxicities...
November 1, 2017: Journal of the National Cancer Institute. Monographs
https://www.readbyqxmd.com/read/29140486/the-national-cancer-institute-s-conference-on-acupuncture-for-symptom-management-in-oncology-state-of-the-science-evidence-and-research-gaps
#5
Farah Z Zia, Oluwadamilola Olaku, Ting Bao, Ann Berger, Gary Deng, Arthur Yin Fan, Mary K Garcia, Patricia M Herman, Ted J Kaptchuk, Elena J Ladas, Helene M Langevin, Lixing Lao, Weidong Lu, Vitaly Napadow, Richard C Niemtzow, Andrew J Vickers, Xin Shelley Wang, Claudia M Witt, Jun J Mao
The Division of Cancer Treatment and Diagnosis, Office of Cancer Complementary and Alternative Medicine, at the National Cancer Institute (NCI) held a symposium on "Acupuncture for Cancer Symptom Management" on June 16 and 17, 2016. Invited speakers included 19 scientists and scholars with expertise in acupuncture and cancer research from the United States, Europe, and China. The conference reviewed the NCI's grant funding on acupuncture, analyzed the needs of cancer patients, reviewed safety issues, and assessed both the current scientific evidence and research gaps of acupuncture in oncology care...
November 1, 2017: Journal of the National Cancer Institute. Monographs
https://www.readbyqxmd.com/read/29139326/dna-polymerase-%C3%AE-mutational-signatures-are-found-in-a-variety-of-different-types-of-cancer
#6
Igor B Rogozin, Alexander Goncearenco, Artem G Lada, Subhajyoti De, German Nudelman, Anna R Panchenko, David N Cooper, Youri I Pavlov
DNA polymerase (pol) η is a specialized error-prone polymerase with at least two quite different and contrasting cellular roles: to mitigate the genetic consequences of solar UV irradiation, and promote somatic hypermutation in the variable regions of immunoglobulin genes. Misregulation and mistargeting of pol η can compromise genome integrity. We explored whether the mutational signature of pol η could be found in datasets of human somatic mutations derived from normal and cancer cells. A substantial excess of single and tandem somatic mutations within known pol η mutable motifs was noted in skin cancer as well as in many other types of human cancer, suggesting that somatic mutations in A:T bases generated by DNA polymerase η are a common feature of tumorigenesis...
November 15, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29137167/transmission-dynamics-of-hiv-1-drug-resistance-among-treatment-na%C3%A3-ve-individuals-in-greece-the-added-value-of-molecular-epidemiology-to-public-health
#7
Dimitrios Paraskevis, Evangelia Kostaki, Panagiotis Gargalianos, Georgios Xylomenos, Marios Lazanas, Maria Chini, Athanasios Skoutelis, Vasileios Papastamopoulos, Dimitra Paraskeva, Anastasia Antoniadou, Antonios Papadopoulos, Mina Psichogiou, Georgios L Daikos, Georgios Chrysos, Vasileios Paparizos, Sofia Kourkounti, Helen Sambatakou, Nikolaos V Sipsas, Malvina Lada, Periklis Panagopoulos, Efstratios Maltezos, Stylianos Drimis, Angelos Hatzakis
The presence of human immunodeficiency virus type 1 (HIV-1) drug resistance among drug-naïve patients remains stable, although the proportion of patients with virological failure to therapy is decreasing. The dynamics of transmitted resistance among drug-naïve patients remains largely unknown. The prevalence of non-nucleoside reverse transcriptase inhibitors (NNRTI) resistance was 16.9% among treatment-naïve individuals in Greece. We aimed to investigate the transmission dynamics and the effective reproductive number (Re) of the locally transmitted NNRTI resistance...
November 13, 2017: Genes
https://www.readbyqxmd.com/read/29115310/observation-of-hidden-atomic-order-at-the-interface-between-fe-and-topological-insulator-bi2te3
#8
Jaime Sánchez-Barriga, Ilya I Ogorodnikov, Mikhail V Kuznetsov, Andrey A Volykhov, Fumihiko Matsui, Carolien Callaert, Joke Hadermann, Nikolay I Verbitskiy, Roland J Koch, Andrei Varykhalov, Oliver Rader, Lada V Yashina
To realize spintronic devices based on topological insulators (TIs), well-defined interfaces between magnetic metals and TIs are required. Here, we characterize atomically precisely the interface between the 3d transition metal Fe and the TI Bi2Te3 at different stages of its formation. Using photoelectron diffraction and holography, we show that after deposition of up to 3 monolayers Fe on Bi2Te3 at room temperature, the Fe atoms are ordered at the interface despite the surface disorder revealed by our scanning-tunneling microscopy images...
November 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29067979/peripheral-blood-mononuclear-cells-of-patients-with-latent-autoimmune-diabetes-secrete-higher-levels-of-pro-anti-inflammatory-cytokines-compared-to-those-with-type-1-diabetes-mellitus-following-in-vitro-stimulation-with-%C3%AE-cell-autoantigens
#9
Darshan Badal, Rajendra Kumar, Mahinder Paul, Devi Dayal, Anil Bhansali, Sanjay Kumar Bhadada, Rajesh Kumar, Naresh Sachdeva
BACKGROUND & OBJECTIVES: Type-1 diabetes mellitus (T1DM) and latent autoimmune diabetes in adults (LADA) share similar pathological features but differ in age of onset and progression. There is a scarcity of information on differences in CD4+ T-cell responses, particularly, cytokine secretion, between the two forms of autoimmune diabetes. Here proliferative potential and concentration of pro- and anti-inflammatory cytokines secreted by peripheral blood mononuclear cells (PBMCs) of T1DM and LADA patients were compared, after in vitro stimulation with β-cell autoantigens...
June 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29067554/extracellular-hsp70-induces-inflammation-and-modulates-lps-lta-stimulated-inflammatory-response-in-thp-1-cells
#10
Andrea Hulina, Marija Grdić Rajković, Daniela Jakšić Despot, Dubravko Jelić, Ana Dojder, Ivana Čepelak, Lada Rumora
Extracellular Hsp70 (eHsp70) can act as damage-associated molecular pattern (DAMP) via Toll-like receptors TLR2 and TLR4, and stimulate immune and inflammatory responses leading to sterile inflammation and propagation of already existing inflammation. It was found elevated in the blood of patients with chronic obstructive pulmonary disease (COPD), who might suffer occasional bacterial colonizations and infections. We used a monocytic THP-1 cell line as a cellular model of systemic compartment of COPD to assess inflammatory effects of eHsp70 when present alone or together with bacterial products lypopolysaccharide (LPS) and lypoteichoic acid (LTA)...
October 24, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/29062603/decreased-quality-of-life-and-treatment-satisfaction-in-patients-with-latent-autoimmune-diabetes-of-the-adult
#11
Minerva Granado-Casas, Montserrat Martínez-Alonso, Nuria Alcubierre, Anna Ramírez-Morros, Marta Hernández, Esmeralda Castelblanco, Joan Torres-Puiggros, Didac Mauricio
OBJECTIVES: Our main aim was to assess the quality of life (QoL) and treatment satisfaction (TS) of subjects with LADA (latent autoimmune diabetes of the adult) and compare these measures with those of patients with other diabetes types, i.e., type 1 (T1DM) and type 2 diabetes mellitus (T2DM). METHODS: This was a cross-sectional study with a total of 48 patients with LADA, 297 patients with T2DM and 124 with T1DM. The Audit of Diabetes-Dependent Quality of Life (ADDQoL-19) questionnaire and the Diabetes Treatment Satisfaction Questionnaire (DTSQ) were administered...
2017: PeerJ
https://www.readbyqxmd.com/read/29040050/latent-autoimmune-diabetes-in-adults-in-north-indian-region-assessment-of-%C3%AE-cell-function-metabolic-and-immunological-features
#12
Alok Kumar, Alberto de Leiva
BACKGROUND: We undertook a study to assess β-cell function metabolic and immunological features of patients with latent autoimmune diabetes in adults (LADA) and assess heterogeneity within LADA based on low and high glutamic acid decarboxylase autoantibodies (GADA) titers. METHODS: A total of 139 patients with adult-onset diabetes were examined cross-sectionally in the National capital region of Northern India. Medical history of all subjects was reviewed with the aim of collecting clinical data...
October 17, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/29038805/-switching-on-the-single-molecule-magnet-properties-within-a-series-of-dinuclear-cobalt-iii-dysprosium-iii-2-pyridyloximate-complexes
#13
C D Polyzou, E S Koumousi, Z G Lada, C P Raptopoulou, V Psycharis, M Rouzières, A C Tsipis, C Mathonière, R Clérac, S P Perlepes
The use of 2-pyridinealdoxime (paoH), methyl 2-pyridyl ketone oxime (mepaoH), phenyl 2-pyridyl ketone oxime (phpaoH) and pyridine-2-amidoxime (NH2paoH) for the synthesis of dinuclear Co(III)/Dy(III) complexes is described in the absence or presence of an external base. Complexes [CoDy(pao)3(NO3)3] (1), [CoDy(mepao)3(NO3)3] (2), [CoDy(phpao)3(NO3)3] (3) and [CoDy(NH2pao)3(NO3)3]·3MeOH (4·3MeOH) have been isolated and their structures have been determined by single-crystal X-ray crystallography. The complexes crystallize in non-centrosymmetric (2, 3) or centrosymmetric (1, 4·3MeOH) trigonal space groups and form a family of triply-oximate bridged dinuclear Co(iii)-Dy(iii) complexes...
November 7, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29029407/molecular-profiling-of-colorectal-pulmonary-metastases-and-primary-tumours-implications-for-targeted-treatment
#14
Sing Y Moorcraft, Thomas Jones, Brian A Walker, George Ladas, Eleftheria Kalaitzaki, Lina Yuan, Ruwaida Begum, Zakaria Eltahir, Andrew Wotherspoon, Angeles Montero-Fernandez, Larissa S Teixeira Mendes, David Gonzalez de Castro, Sanna Hulkki Wilson, Paula Proszek, Ye M To, Eliza Hawkes, Amitesh Roy, David Cunningham, Sheela Rao, David Watkins, Naureen Starling, Anne M Bowcock, Ian Chau
This study aimed to molecularly characterise colorectal pulmonary metastases (PM) and investigate whether their molecular profiles were concordant with those of the primary tumour. Clinical data and archival formalin fixed paraffin embedded tissue samples were retrospectively collected from patients who underwent ≥ 1 pulmonary metastasectomies for colorectal cancer between 1997-2012. Primary tumour and metastatic samples were analysed using a targeted capture sequencing panel of 46 cancer-associated genes...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29026997/a-systematic-review-of-integrative-clinical-trials-for-supportive-care-in-pediatric-oncology-a-report-from-the-international-society-of-pediatric-oncology-t-cm-collaborative
#15
REVIEW
Andrea L Radossi, Katherine Taromina, Stacey Marjerrison, Caroline J Diorio, Raquel Similio, Festus Njuguna, Glenn M Afungchwi, Elena J Ladas
PURPOSE: Traditional and complementary medicine (T&CM) use in children with cancer is well established among high-income, upper middle-income, low-middle-income, and low-income countries (HIC, UMIC, LMIC, LIC, respectively). In HIC, a developing body of evidence exists for several T&CM therapies; however, evidence in other income settings is less well described despite a significantly higher use when compared to reports from HIC. The aim of this systematic review was to evaluate the evidence for T&CM for a variety of supportive care indications among children with cancer...
October 13, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29026609/ketosis-prone-diabetes-and-sle-co-presenting-in-an-african-lady-with-previous-gestational-diabetes
#16
S Hussain, S Keat, S V Gelding
We describe the case of an African woman who was diagnosed with ketosis-prone diabetes with diabetes-associated autoantibodies, after being admitted for diabetic ketoacidosis (DKA) precipitated by her first presentation of systemic lupus erythematosus (SLE). She had a seven-year history of recurrent gestational diabetes (GDM) not requiring insulin therapy, with return to normoglycaemia after each pregnancy. This might have suggested that she had now developed type 2 diabetes (T2D). However, the diagnosis of SLE prompted testing for an autoimmune aetiology for the diabetes, and she was found to have a very high titre of GAD antibodies...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28992520/native-and-introduced-squirrels-in-italy-host-different-cryptosporidium-spp
#17
Jitka Prediger, Michaela Horčičková, Lada Hofmannová, Bohumil Sak, Nicola Ferrari, Maria Vittoria Mazzamuto, Claudia Romeo, Lucas A Wauters, John McEvoy, Martin Kváč
The present study was undertaken to describe Cryptosporidium spp. infection in tree squirrels from 17 locations in Northern Italy. A total of 357 squirrels were examined, including species native to Europe (Sciurus vulgaris; n=123), and species introduced from North America (Sciurus carolinensis; n=162) and Southeast Asia (Callosciurus erythraeus; n=72). Faecal samples of all squirrels were examined for the presence of Cryptosporidium infection by microscopy (flotation method) and PCR/sequence analysis of the Cryptosporidium 18S rRNA, actin, and gp60 genes...
September 21, 2017: European Journal of Protistology
https://www.readbyqxmd.com/read/28989213/solvent-extraction-of-cu-mo-v-and-u-from-leach-solutions-of-copper-ore-and-flotation-tailings
#18
Tomasz Smolinski, Danuta Wawszczak, Andrzej Deptula, Wieslawa Lada, Tadeusz Olczak, Marcin Rogowski, Marta Pyszynska, Andrzej Grzegorz Chmielewski
Flotation tailings from copper production are deposits of copper and other valuable metals, such as Mo, V and U. New hydrometallurgical technologies are more economical and open up new possibilities for metal recovery. This work presents results of the study on the extraction of copper by mixed extractant consisting p-toluidine dissolved in toluene. The possibility of simultaneous liquid-liquid extraction of molybdenum and vanadium was examined. D2EHPA solutions was used as extractant, and recovery of individual elements compared for the representative samples of ore and copper flotation tailings...
2017: Journal of Radioanalytical and Nuclear Chemistry
https://www.readbyqxmd.com/read/28987750/metabolic-risk-profiles-in-diabetes-stratified-according-to-age-at-onset-islet-autoimmunity-and-fasting-c-peptide
#19
Mette Wod, Knud B Yderstræde, Ulrich Halekoh, Henning Beck-Nielsen, Kurt Højlund
OBJECTIVE: Islet autoimmunity, age at onset and time to insulin treatment are often used to define subgroups of diabetes. However, the latter criterion is not clinical useful. Here, we examined whether an unbiased stratification of diabetes according to age at onset, fasting C-peptide and GAD autoantibodies (GADab) defines groups with differences in glycaemic control and markers of cardiometabolic risk. DESIGN AND METHODS: A cohort of 4374 adults with relatively newly diagnosed diabetes referred to a Danish hospital during 1997-2012 was stratified according to age at onset above or below 30 years, fasting C-peptide above or below 300 pmol/l (CPEPhigh or CPEPlow), and presence or absence of GADab (GADpos or GADneg)...
October 5, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28968778/neuronal-expression-of-opioid-gene-is-controlled-by-dual-epigenetic-and-transcriptional-mechanism-in-human-brain
#20
Igor Bazov, Daniil Sarkisyan, Olga Kononenko, Hiroyuki Watanabe, Mumtaz Malik Taqi, Lada Stålhandske, Dineke S Verbeek, Jan Mulder, Grazyna Rajkowska, Donna Sheedy, Jillian Kril, Xueguang Sun, Ann-Christine Syvänen, Tatiana Yakovleva, Georgy Bakalkin
Molecular mechanisms that define patterns of neuropeptide expression are essential for the formation and rewiring of neural circuits. The prodynorphin gene (PDYN) gives rise to dynorphin opioid peptides mediating depression and substance dependence. We here demonstrated that PDYN is expressed in neurons in human dorsolateral prefrontal cortex (dlPFC), and identified neuronal differentially methylated region in PDYN locus framed by CCCTC-binding factor binding sites. A short, nucleosome size human-specific promoter CpG island (CGI), a core of this region may serve as a regulatory module, which is hypomethylated in neurons, enriched in 5-hydroxymethylcytosine, and targeted by USF2, a methylation-sensitive E-box transcription factor (TF)...
July 28, 2017: Cerebral Cortex
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