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https://www.readbyqxmd.com/read/29142974/profiling-of-plasma-metabolites-suggests-altered-mitochondrial-fuel-usage-and-remodeling-of-sphingolipid-metabolism-in-individuals-with-type%C3%A2-2-diabetes-and-kidney-disease
#1
Jian-Jun Liu, Sujoy Ghosh, Jean-Paul Kovalik, Jianhong Ching, Hyung Won Choi, Subramaniam Tavintharan, Choon Nam Ong, Chee Fang Sum, Scott A Summers, E Shyong Tai, Su Chi Lim
Introduction: Pathophysiology of diabetic kidney disease (DKD) is incompletely understood. We aim to elucidate metabolic abnormalities associated with DKD in type 2 diabetes mellitus (T2DM) by targeted plasma metabolomics. Methods: A total of 126 T2DM participants with early DKD (urinary albumin-to-creatinine ratio [ACR] 30-299 mg/g and eGFR ≥ 60 ml/min/1.73 m(2)), 154 overt DKD (ACR ≥ 300 mg/g or eGFR < 60 ml/min/1.73 m(2)), and 129 non-DKD T2DM controls (ACR < 30 mg/g and eGFR ≥ 60 ml/min/1...
May 2017: KI Reports
https://www.readbyqxmd.com/read/29142468/glucagon-like-peptide-2-modulates-the-nitrergic-neurotransmission-in-strips-from-the-mouse-gastric-fundus
#2
Rachele Garella, Eglantina Idrizaj, Chiara Traini, Roberta Squecco, Maria Giuliana Vannucchi, Maria Caterina Baccari
AIM: To investigate whether glucagon-like peptide-2 (GLP-2) influences the neurally-induced responses in gastric strips from mice, since no data are available. METHODS: For functional experiments, gastric fundal strips were mounted in organ baths containing Krebs-Henseleit solution. Mechanical responses were recorded via force-displacement transducers, which were coupled to a polygraph for continuous recording of isometric tension. Electrical field stimulation (EFS) was applied via two platinum wire rings through which the preparation was threaded...
October 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29136026/operative-technique-at-caesarean-delivery-and-risk-of-complete-uterine-rupture-in-a-subsequent-trial-of-labour-at-term-a-registry-case-control-study
#3
Dorthe L A Thisted, Laust H Mortensen, Lone Hvidman, Lone Krebs
OBJECTIVE: To estimate the relation of single-layer closure at previous caesarean delivery, and other pre-labour and intra-partum risk factors for complete uterine rupture in trial of vaginal birth after a caesarean (TOLAC) at term. STUDY DESIGN: Population-based case-control study. We identified all women (n = 39 742) recorded in the Danish Medical Birth Registry (DMBR) during a 12-year period (1997-2008) with a singleton pregnancy at term and TOLAC. Among these, all women with a complete uterine rupture were identified (cases)...
2017: PloS One
https://www.readbyqxmd.com/read/29133864/effects-of-microgravity-on-osteoblast-mitochondria-a-proteomic-and-metabolomics-profile
#4
Anna Michaletti, Magda Gioia, Umberto Tarantino, Lello Zolla
The response of human primary osteoblasts exposed to simulated microgravity has been investigated and analysis of metabolomic and proteomic profiles demonstrated a prominent dysregulation of mitochondrion homeostasis. Gravitational unloading treatment induced a decrease in mitochondrial proteins, mainly affecting efficiency of the respiratory chain. Metabolomic analysis revealed that microgravity influenced several metabolic pathways; stimulating glycolysis and the pentose phosphate pathways, while the Krebs cycle was interrupted at succinate-fumarate transformation...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29132538/immunometabolic-profiling-of-t-cells-from-patients-with-relapsing-remitting-multiple-sclerosis-reveals-an-impairment-in-glycolysis-and-mitochondrial-respiration
#5
Claudia La Rocca, Fortunata Carbone, Veronica De Rosa, Alessandra Colamatteo, Mario Galgani, Francesco Perna, Roberta Lanzillo, Vincenzo Brescia Morra, Giuseppe Orefice, Ilaria Cerillo, Ciro Florio, Giorgia Teresa Maniscalco, Marco Salvetti, Diego Centonze, Antonio Uccelli, Salvatore Longobardi, Andrea Visconti, Giuseppe Matarese
BACKGROUND: Metabolic reprogramming is shaped to support specific cell functions since cellular metabolism controls the final outcome of immune response. Multiple sclerosis (MS) is an autoimmune disease resulting from loss of immune tolerance against central nervous system (CNS) myelin. Metabolic alterations of T cells occurring during MS are not yet well understood and their studies could have relevance in the comprehension of the pathogenetic events leading to loss of immune tolerance to self and to develop novel therapeutic strategies aimed at limiting MS progression...
December 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29129292/targeting-myeloid-cells-in-the-tumor-sustaining-microenvironment
#6
REVIEW
Jonathan Schupp, Franziska K Krebs, Niklas Zimmer, Emily Trzeciak, Detlef Schuppan, Andrea Tuettenberg
Myeloid cells are the most abundant cells in the tumor microenvironment (TME). The tumor recruits and modulates endogenous myeloid cells to tumor-associated macrophages (TAM), dendritic cells (DC), myeloid-derived suppressor cells (MDSC) and neutrophils (TAN), to sustain an immunosuppressive environment. Pathologically overexpressed mediators produced by cancer cells like granulocyte-macrophage colony-stimulating- and vascular endothelial growth factor induce myelopoiesis in the bone marrow. Excess of myeloid cells in the blood, periphery and tumor has been associated with tumor burden...
November 2, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/29128118/associations-between-inflammatory-markers-and-cognitive-function-in-breast-cancer-patients-receiving-chemotherapy
#7
AnnaLynn M Williams, Raven Shah, Michelle Shayne, Alissa J Huston, Marcia Krebs, Nicole Murray, Bryan D Thompson, Kassandra Doyle, Jenna Korotkin, Edwin van Wijngaarden, Sharon Hyland, Jan A Moynihan, Deborah A Cory-Slechta, Michelle C Janelsins
BACKGROUND: Cancer-related cognitive impairment (CRCI) is often related to chemotherapy. Increased chronic inflammation is believed to play a key role in the development of CRCI related to chemotherapy but studies assessing this hypothesis specifically in patients receiving chemotherapy are rare. METHODS: We assessed several cognitive domains using the Cambridge Neuropsychological Test Automated Battery (CANTAB) in twenty-two breast cancer patients currently receiving chemotherapy...
October 18, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29127235/cardiac-performance-is-limited-by-oxygen-delivery-to-the-mitochondria-in-the-crystalloid-perfused-working-heart
#8
Sarah Kuzmiak-Glancy, Raul Covian, Armel N Femnou, Brian Glancy, Rafael Jaimes, Anastasia M Wengrowski, Kara Garrott, Stephanie French, Robert S Balaban, Matthew W Kay
The left ventricular (LV) working, crystalloid-perfused heart is used extensively to evaluate basic cardiac function, pathophysiology, and pharmacology. Crystalloid-perfused hearts may be limited by oxygen delivery, as adding oxygen carriers increases myoglobin oxygenation and improves myocardial function. However, whether decreased myoglobin oxygen saturation impacts oxidative phosphorylation (OxPhos) is unresolved since myoglobin has a much lower affinity for oxygen than cytochrome c oxidase (COX). In the present study, a laboratory-based synthesis of an affordable perfluorocarbon (PFC) emulsion was developed to increase perfusate oxygen-carrying capacity without impeding optical absorbance assessments...
November 10, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29119391/comparative-study-of-toxicity-of-alkoxyamines-in-vitro-and-in-vivo
#9
N A Popova, G M Sysoeva, V P Nikolin, V I Kaledin, E V Tretyakov, M V Edeeva, S M Balakhnin, E L Lushnikova, G Audran, S Mark
Effect of alkoxyamines on normal and tumor cells was studied in vitro and in vivo. In vitro experiments showed that alkoxyamines produce a dose-dependent toxic effect on cells of human breast tumor MCF7 line. Transplantation of Krebs-2 ascites carcinoma cells preincubated with alkoxyamines to mice did not induce tumor growth. An opposite effect was observed in normal mouse cells: functional activity of peritoneal macrophages increased. The possibility of using alkoxyamines as theranostic agents is discussed...
November 9, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29111855/neuroprotective-effects-of-inhibitors-of-acid-sensing-ion-channels-asics-in-optic-nerve-crush-model-in-rodents
#10
Dorota L Stankowska, Brett H Mueller, Hidehiro Oku, Tsunehiko Ikeda, Adnan Dibas
PURPOSE: The purpose of the current study was to assess the potential involvement of acid-sensing ion channel 1 (ASIC1) in retinal ganglion cell (RGC) death and investigate the neuroprotective effects of inhibitors of ASICs in promoting RGC survival following optic nerve crush (ONC). RESULTS: ASIC1 protein was significantly increased in optic nerve extracts at day 7 following ONC in rats. Activated calpain-1 increased at 2 and 7 days following ONC as evidenced by increased degradation of α-fodrin, known substrate of calpain...
November 7, 2017: Current Eye Research
https://www.readbyqxmd.com/read/29110735/development-of-interstitial-pneumonia-during-treatment-with-eribulin-a-case-report
#11
Kota Nakamura, Motoyasu Kato, Yosuke Miyashita, Osamu Nagashima, Shinichi Sasaki, Shigeru Tominaga, Kazuhisa Takahashi
BACKGROUND: Eribulin is typically used to treat patients with advanced breast cancer, and anti-cancer agents often cause the development of interstitial pneumonia in Japanese patients with advanced cancer. However, few case reports have addressed eribulin-induced interstitial pneumonia. Herein, we report a rare case of interstitial pneumonia-specifically, organized pneumonia-during treatment with eribulin in a patient with advanced breast cancer. CASE PRESENTATION: A 52-year-old Japanese woman was diagnosed as having advanced breast cancer 3 years before the admission described in the present report...
November 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29107957/febuxostat-ameliorates-secondary-progressive-experimental-autoimmune-encephalomyelitis-by-restoring-mitochondrial-energy-production-in-a-got2-dependent-manner
#12
Josephe A Honorat, Yuji Nakatsuji, Mikito Shimizu, Makoto Kinoshita, Hisae Sumi-Akamaru, Tsutomu Sasaki, Kazushiro Takata, Toru Koda, Akiko Namba, Kazuya Yamashita, Eri Sanda, Manabu Sakaguchi, Atsushi Kumanogoh, Takashi Shirakura, Mizuho Tamura, Saburo Sakoda, Hideki Mochizuki, Tatsusada Okuno
Oxidative stress and mitochondrial dysfunction are important determinants of neurodegeneration in secondary progressive multiple sclerosis (SPMS). We previously showed that febuxostat, a xanthine oxidase inhibitor, ameliorated both relapsing-remitting and secondary progressive experimental autoimmune encephalomyelitis (EAE) by preventing neurodegeneration in mice. In this study, we investigated how febuxostat protects neuron in secondary progressive EAE. A DNA microarray analysis revealed that febuxostat treatment increased the CNS expression of several mitochondria-related genes in EAE mice, most notably including GOT2, which encodes glutamate oxaloacetate transaminase 2 (GOT2)...
2017: PloS One
https://www.readbyqxmd.com/read/29098735/glucose-and-lipid-metabolism-disorders-in-the-chickens-with-dexamethasone-induced-oxidative-stress
#13
Z-P Lv, Y-Z Peng, B-B Zhang, H Fan, D Liu, Y-M Guo
The purpose of this study was to investigate the effects of long-term treatment with dexamethasone (DEX) on the antioxidation and nutrition metabolism in broiler chickens. Broilers were placed on a high-nutrient diet for 41 days, and half were given orally DEX-supplemented water at 20 mg/L every other day from 19 to 41 days of age. DEX treatment downregulated superoxide dismutase activity as well as the mRNA expression of CuZn-superoxide dismutase and glutathione peroxidase with a decrease in GSH/GSSG ratio and an increase in malondialdehyde level in the liver of broilers...
November 3, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29094456/a-prospective-cause-of-death-classification-system-for-maternal-deaths-in-low-and-middle-income-countries-results-from-the-global-network-maternal-newborn-health-registry
#14
Omrana Pasha, Elizabeth M McClure, Sarah Saleem, Shiyam Sunder, Adrien Lokangaka, Antoinette Tshefu, Carl L Bose, Melissa Bauserman, Musaku Mwenechanya, Elwyn Chomba, Waldemar A Carlo, Ana L Garces, Lester Figueroa, K Michael Hambidge, Nancy F Krebs, Shivaprasad Goudar, Bhalachandra S Kodkany, Sangappa Dhaded, Richard J Derman, Archana Patel, Patricia L Hibberd, Fabian Esamai, Constance Tenge, Edward A Liechty, Janet L Moore, Dennis D Wallace, Marion Koso-Thomas, Menachem Miodovnik, Robert L Goldenberg
OBJECTIVE: To describe the causes of maternal death in a population-based cohort in six low and middle-income countries using a standardized, hierarchical, algorithmic cause of death (COD) methodology. DESIGN: A population-based, prospective observational study. SETTING: Seven sites in six low-middle income countries including the Democratic Republic of the Congo (DRC), Guatemala, India (2), Kenya, Pakistan and Zambia. POPULATION: All deaths amongst pregnant women resident in the study sites from 2014 to December 2016...
November 1, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29093489/trem-1-promotes-intestinal-tumorigenesis
#15
Leslie Saurer, Daniel Zysset, Silvia Rihs, Lukas Mager, Matteo Gusberti, Cedric Simillion, Alessandro Lugli, Inti Zlobec, Philippe Krebs, Christoph Mueller
Triggering receptor expressed on myeloid cells-1 (TREM-1) is a potent amplifier of pro-inflammatory innate immune responses. Increasing evidence suggests a role for TREM-1 not only in acute pathogen-induced reactions but also in chronic and non-infectious inflammatory disorders, including various types of cancer. Here, we demonstrate that genetic deficiency in Trem1 protects from colorectal cancer. In particular, Trem1 (-/-) mice exhibited reduced tumor numbers and load in an experimental model of inflammation-driven tumorigenesis...
November 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29091114/primary-health-care-assessment-by-users-with-and-without-disabilities
#16
Maria Helena Morgani de Almeida, Samanta Pacheco, Stephanie Krebs, Amanda Manso Oliveira, Alessandra Samelli, Daniela Regina Molini-Avejonas, Rosé Colom Toldrá, Fátima Corrêa Oliver
PURPOSE: To evaluate the core (First Contact, Longitudinality, Comprehensiveness, and Coordination of Services) and derivative (Family Orientation, Community Orientation) attributes of primary health care (PHC) from the perspective of users with and without disabilities. METHODS: Observational, cross-sectional study using the Primary Care Assessment Tool (PCAT) with users with and without disabilities of five basic health units (BHU) in a municipality where 55% of the population depends on the Brazilian Unified Health System (SUS)...
October 26, 2017: CoDAS
https://www.readbyqxmd.com/read/29090363/calcium-axonemal-microtubuli-interactions-underlie-mechanism-s-of-primary-cilia-morphological-changes
#17
Vlado A Buljan, Manuel B Graeber, R M Damian Holsinger, Daniel Brown, Brett D Hambly, Edward J Delikatny, Vladimira R Vuletic, Xavier N Krebs, Ilijan B Tomas, John J Bohorquez-Florez, Guo Jun Liu, Richard B Banati
We have used cell culture of astrocytes aligned within microchannels to investigate calcium effects on primary cilia morphology. In the absence of calcium and in the presence of flow of media (10 μL.s(-1)) the majority (90%) of primary cilia showed reversible bending with an average curvature of 2.1 ± 0.9 × 10(-4) nm(-1). When 1.0 mM calcium was present, 90% of cilia underwent bending. Forty percent of these cilia demonstrated strong irreversible bending, resulting in a final average curvature of 3...
October 31, 2017: Journal of Biological Physics
https://www.readbyqxmd.com/read/29090212/metabolism-of-citrate-and-other-carboxylic-acids-in-erythrocytes-as-a-function-of-oxygen-saturation-and-refrigerated-storage
#18
Travis Nemkov, Kaiqi Sun, Julie A Reisz, Tatsuro Yoshida, Andrew Dunham, Edward Y Wen, Alexander Q Wen, Rob C Roach, Kirk C Hansen, Yang Xia, Angelo D'Alessandro
State-of-the-art proteomics technologies have recently helped to elucidate the unanticipated complexity of red blood cell metabolism. One recent example is citrate metabolism, which is catalyzed by cytosolic isoforms of Krebs cycle enzymes that are present and active in mature erythrocytes and was determined using quantitative metabolic flux analysis. In previous studies, we reported significant increases in glycolytic fluxes in red blood cells exposed to hypoxia in vitro or in vivo, an observation relevant to transfusion medicine owing to the potential benefits associated with hypoxic storage of packed red blood cells...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29081301/shortening-the-application-time-of-alcohol-based-hand-rubs-to-15-seconds-may-improve-the-frequency-of-hand-antisepsis-actions-in-a-neonatal-intensive-care-unit
#19
Axel Kramer, Didier Pittet, Romana Klasinc, Stefan Krebs, Torsten Koburger, Christoph Fusch, Ojan Assadian
BACKGROUND For alcohol-based hand rubs, the currently recommended application time of 30 seconds is longer than the actual time spent in clinical practice. We investigated whether a shorter application time of 15 seconds is microbiologically safe in neonatal intensive care and may positively influence compliance with the frequency of hand antisepsis actions. METHODS We conducted in vitro experiments to determine the antimicrobial efficacy of hand rubs within 15 seconds, followed by clinical observations to assess the effect of a shortened hand antisepsis procedure under clinical conditions in a neonatal intensive care unit (NICU)...
October 30, 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29080916/detection-of-blood-and-dna-traces-after-thermal-exposure
#20
A Klein, O Krebs, A Gehl, J Morgner, L Reeger, C Augustin, C Edler
The analysis of blood traces is often of significant reconstructive and evidence-gathering importance. Perpetrators deliberately set fires to destroy evidence. There is little literature regarding the effect of fire and extreme heat on blood and the detection of blood. Blood and DNA are believed to be no longer traceable after exposure to a temperature of 1000 °C. This study exposed different objects of a standardized procedure to temperatures of 300, 700, and 1000 °C. It documented the influence of heat on blood traces through the use of luminol...
October 28, 2017: International Journal of Legal Medicine
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