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https://www.readbyqxmd.com/read/28922657/methods-employed-in-cytofluorometric-assessment-of-eryptosis-the-suicidal-erythrocyte-death
#1
Mohamed Jemaà, Myriam Fezai, Rosi Bissinger, Florian Lang
Suicidal erythrocyte death or eryptosis contributes to or even accounts for anemia in a wide variety of clinical conditions, such as iron deficiency, dehydration, hyperphosphatemia, vitamin D excess, chronic kidney disease (CKD), hemolytic-uremic syndrome, diabetes, hepatic failure, malignancy, arteriitis, sepsis, fever, malaria, sickle-cell disease, beta-thalassemia, Hb-C and G6PD-deficiency, Wilsons disease, as well as advanced age. Moreover, eryptosis is triggered by a myriad of xenobiotics and endogenous substances including cytotoxic drugs and uremic toxins...
September 1, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28919905/candidate-reference-genes-selection-and-application-for-rt-qpcr-analysis-in-kenaf-with-cytoplasmic-male-sterility-background
#2
Bujin Zhou, Peng Chen, Aziz Khan, Yanhong Zhao, Lihong Chen, Dongmei Liu, Xiaofang Liao, Xiangjun Kong, Ruiyang Zhou
Cytoplasmic male sterility (CMS) is a maternally inherited trait that results in the production of dysfunctional pollen. Based on reliable reference gene-normalized real-time quantitative PCR (RT-qPCR) data, examining gene expression profile can provide valuable information on the molecular mechanism of kenaf CMS. However, studies have not been conducted regarding selection of reference genes for normalizing RT-qPCR data in the CMS and maintainer lines of kenaf crop. Therefore, we studied 10 candidate reference genes (ACT3, ELF1A, G6PD, PEPKR1, TUB, TUA, CYP, GAPDH, H3, and 18S) to assess their expression stability at three stages of pollen development in CMS line 722A and maintainer line 722B of kenaf...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28902532/comparison-of-spectrophotometry-chromate-inhibition-and-cytofluorometry-versus-gene-sequencing-for-detection-of-heterozygously-glucose-6-phosphate-dehydrogenase-deficient-females
#3
Anna L Peters, Martijn Veldthuis, Karin van Leeuwen, Patrick M M Bossuyt, Alexander P J Vlaar, Robin van Bruggen, Dirk de Korte, Cornelis J F Van Noorden, Rob van Zwieten
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most common enzyme deficiency worldwide. Detection of heterozygously deficient females can be difficult as residual activity in G6PD-sufficient red blood cells (RBCs) can mask deficiency. In this study, we compared accuracy of 4 methods for detection of G6PD deficiency in females. Blood samples from females more than 3 months of age were used for spectrophotometric measurement of G6PD activity and for determination of the percentage G6PD-negative RBCs by cytofluorometry...
September 1, 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/28898252/impact-of-common-genetic-determinants-of-hemoglobin-a1c-on-type-2-diabetes-risk-and-diagnosis-in-ancestrally-diverse-populations-a-transethnic-genome-wide-meta-analysis
#4
Eleanor Wheeler, Aaron Leong, Ching-Ti Liu, Marie-France Hivert, Rona J Strawbridge, Clara Podmore, Man Li, Jie Yao, Xueling Sim, Jaeyoung Hong, Audrey Y Chu, Weihua Zhang, Xu Wang, Peng Chen, Nisa M Maruthur, Bianca C Porneala, Stephen J Sharp, Yucheng Jia, Edmond K Kabagambe, Li-Ching Chang, Wei-Min Chen, Cathy E Elks, Daniel S Evans, Qiao Fan, Franco Giulianini, Min Jin Go, Jouke-Jan Hottenga, Yao Hu, Anne U Jackson, Stavroula Kanoni, Young Jin Kim, Marcus E Kleber, Claes Ladenvall, Cecile Lecoeur, Sing-Hui Lim, Yingchang Lu, Anubha Mahajan, Carola Marzi, Mike A Nalls, Pau Navarro, Ilja M Nolte, Lynda M Rose, Denis V Rybin, Serena Sanna, Yuan Shi, Daniel O Stram, Fumihiko Takeuchi, Shu Pei Tan, Peter J van der Most, Jana V Van Vliet-Ostaptchouk, Andrew Wong, Loic Yengo, Wanting Zhao, Anuj Goel, Maria Teresa Martinez Larrad, Dörte Radke, Perttu Salo, Toshiko Tanaka, Erik P A van Iperen, Goncalo Abecasis, Saima Afaq, Behrooz Z Alizadeh, Alain G Bertoni, Amelie Bonnefond, Yvonne Böttcher, Erwin P Bottinger, Harry Campbell, Olga D Carlson, Chien-Hsiun Chen, Yoon Shin Cho, W Timothy Garvey, Christian Gieger, Mark O Goodarzi, Harald Grallert, Anders Hamsten, Catharina A Hartman, Christian Herder, Chao Agnes Hsiung, Jie Huang, Michiya Igase, Masato Isono, Tomohiro Katsuya, Chiea-Chuen Khor, Wieland Kiess, Katsuhiko Kohara, Peter Kovacs, Juyoung Lee, Wen-Jane Lee, Benjamin Lehne, Huaixing Li, Jianjun Liu, Stephane Lobbens, Jian'an Luan, Valeriya Lyssenko, Thomas Meitinger, Tetsuro Miki, Iva Miljkovic, Sanghoon Moon, Antonella Mulas, Gabriele Müller, Martina Müller-Nurasyid, Ramaiah Nagaraja, Matthias Nauck, James S Pankow, Ozren Polasek, Inga Prokopenko, Paula S Ramos, Laura Rasmussen-Torvik, Wolfgang Rathmann, Stephen S Rich, Neil R Robertson, Michael Roden, Ronan Roussel, Igor Rudan, Robert A Scott, William R Scott, Bengt Sennblad, David S Siscovick, Konstantin Strauch, Liang Sun, Morris Swertz, Salman M Tajuddin, Kent D Taylor, Yik-Ying Teo, Yih Chung Tham, Anke Tönjes, Nicholas J Wareham, Gonneke Willemsen, Tom Wilsgaard, Aroon D Hingorani, Josephine Egan, Luigi Ferrucci, G Kees Hovingh, Antti Jula, Mika Kivimaki, Meena Kumari, Inger Njølstad, Colin N A Palmer, Manuel Serrano Ríos, Michael Stumvoll, Hugh Watkins, Tin Aung, Matthias Blüher, Michael Boehnke, Dorret I Boomsma, Stefan R Bornstein, John C Chambers, Daniel I Chasman, Yii-Der Ida Chen, Yduan-Tsong Chen, Ching-Yu Cheng, Francesco Cucca, Eco J C de Geus, Panos Deloukas, Michele K Evans, Myriam Fornage, Yechiel Friedlander, Philippe Froguel, Leif Groop, Myron D Gross, Tamara B Harris, Caroline Hayward, Chew-Kiat Heng, Erik Ingelsson, Norihiro Kato, Bong-Jo Kim, Woon-Puay Koh, Jaspal S Kooner, Antje Körner, Diana Kuh, Johanna Kuusisto, Markku Laakso, Xu Lin, Yongmei Liu, Ruth J F Loos, Patrik K E Magnusson, Winfried März, Mark I McCarthy, Albertine J Oldehinkel, Ken K Ong, Nancy L Pedersen, Mark A Pereira, Annette Peters, Paul M Ridker, Charumathi Sabanayagam, Michele Sale, Danish Saleheen, Juha Saltevo, Peter Eh Schwarz, Wayne H H Sheu, Harold Snieder, Timothy D Spector, Yasuharu Tabara, Jaakko Tuomilehto, Rob M van Dam, James G Wilson, James F Wilson, Bruce H R Wolffenbuttel, Tien Yin Wong, Jer-Yuarn Wu, Jian-Min Yuan, Alan B Zonderman, Nicole Soranzo, Xiuqing Guo, David J Roberts, Jose C Florez, Robert Sladek, Josée Dupuis, Andrew P Morris, E-Shyong Tai, Elizabeth Selvin, Jerome I Rotter, Claudia Langenberg, Inês Barroso, James B Meigs
BACKGROUND: Glycated hemoglobin (HbA1c) is used to diagnose type 2 diabetes (T2D) and assess glycemic control in patients with diabetes. Previous genome-wide association studies (GWAS) have identified 18 HbA1c-associated genetic variants. These variants proved to be classifiable by their likely biological action as erythrocytic (also associated with erythrocyte traits) or glycemic (associated with other glucose-related traits). In this study, we tested the hypotheses that, in a very large scale GWAS, we would identify more genetic variants associated with HbA1c and that HbA1c variants implicated in erythrocytic biology would affect the diagnostic accuracy of HbA1c...
September 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28894556/how-we-manage-invasive-fungal-disease-in-acute-myeloid-leukemia-patients-with-glucose-6-dehydrogenase-deficiency
#5
Marco Sanna, Giovanni Caocci, Giorgio La Nasa
Glucose-6-phosphate dehydrogenase (G6PD) represents a common human enzyme defect, particularly prevalent in the Mediterranean, African e Asian area, where malaria was or is still endemic. Recently, we identified G6PD deficiency as a risk factor for developing invasive fungal disease (IFD) and particularly Candida Sepsis in patients undergoing intensive chemotherapy for acute myeloid leukemia (AML), suggesting that there is an urgent need for strategies to properly manage this kind of patients at high risk of invasive mycoses...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28893237/methods-for-the-field-evaluation-of-quantitative-g6pd-diagnostics-a-review
#6
REVIEW
Benedikt Ley, Germana Bancone, Lorenz von Seidlein, Kamala Thriemer, Jack S Richards, Gonzalo J Domingo, Ric N Price
Individuals with glucose-6-phosphate dehydrogenase (G6PD) deficiency are at risk of severe haemolysis following the administration of 8-aminoquinoline compounds. Primaquine is the only widely available 8-aminoquinoline for the radical cure of Plasmodium vivax. Tafenoquine is under development with the potential to simplify treatment regimens, but point-of-care (PoC) tests will be needed to provide quantitative measurement of G6PD activity prior to its administration. There is currently a lack of appropriate G6PD PoC tests, but a number of new tests are in development and are likely to enter the market in the coming years...
September 11, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28890388/dhea-prevents-ribavirin-induced-anemia-via-inhibition-of-glucose-6-phosphate-dehydrogenase
#7
Lynda Handala, Barbara Domange, Hakim Ouled-Haddou, Loïc Garçon, Eric Nguyen-Khac, Francois Helle, Sandra Bodeau, Gilles Duverlie, Etienne Brochot
Ribavirin has been widely used for antiviral therapy. Unfortunately, ribavirin-induced anemia is often a cause of limiting or interrupting treatment. Our team has observed that dehydroepiandrosterone (DHEA) has a protective effect against in vitro and in vivo ribavirin-induced hemolysis. The aim of this study was to better understand this effect as well as the underlying mechanism(s). DHEA was able to reduce in vitro intraerythrocytic ATP depletion induced by ribavirin. Only 1% of ATP remained after incubation with ribavirin (2 mM) at 37 °C for 24 h vs...
September 8, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28888611/comparison-of-mammary-lipid-metabolism-in-dairy-cows-and-goats-fed-diets-supplemented-with-starch-plant-oil-or-fish-oil
#8
L Bernard, P G Toral, Y Chilliard
A direct comparison of cow and goat performance and milk fatty acid (FA) responses to diets known to induce milk fat depression in the bovine has suggested interspecies differences in rumen and mammary lipid metabolism. Thus, this study was conducted to infer some potential mechanisms responsible for the differences in mammary lipogenesis due to diet and ruminant species. To meet this objective, 12 cows and 15 goats were fed a basal diet (control), a similar diet supplemented with 2.2% fish oil (FO), or a diet containing 5...
September 6, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28887160/silencing-of-the-pentose-phosphate-pathway-genes-influences-dna-replication-in-human-fibroblasts
#9
Karolina Fornalewicz, Aneta Wieczorek, Grzegorz Węgrzyn, Robert Łyżeń
Previous reports and our recently published data indicated that some enzymes of glycolysis and the tricarboxylic acid cycle can affect the genome replication process by changing either the efficiency or timing of DNA synthesis in human normal cells. Both these pathways are connected with the pentose phosphate pathway (PPP pathway). The PPP pathway supports cell growth by generating energy and precursors for nucleotides and amino acids. Therefore, we asked if silencing of genes coding for enzymes involved in the pentose phosphate pathway may also affect the control of DNA replication in human fibroblasts...
September 5, 2017: Gene
https://www.readbyqxmd.com/read/28878155/determination-of-highly-sensitive-biological-cell-model-systems-to-screen-bpa-related-health-hazards-using-pathway-studio
#10
Do-Yeal Ryu, Md Saidur Rahman, Myung-Geol Pang
Bisphenol-A (BPA) is a ubiquitous endocrine-disrupting chemical. Recently, many issues have arisen surrounding the disease pathogenesis of BPA. Therefore, several studies have been conducted to investigate the proteomic biomarkers of BPA that are associated with disease processes. However, studies on identifying highly sensitive biological cell model systems in determining BPA health risk are lacking. Here, we determined suitable cell model systems and potential biomarkers for predicting BPA-mediated disease using the bioinformatics tool Pathway Studio...
September 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28875002/prevalence-of-g6pd-deficiency-in-children-with-hepatitis-a
#11
Ghasem Miri-Aliabad, Ali Khajeh, Tooran Shahraki
Introduction: Hepatitis A virus is the most prevalent viral hepatitis. It is globally a major public health problem with different clinical symptoms. This study aimed at investigating the clinical findings and prevalence of glucose 6-phosphate dehydrogenase (G6PD) deficiency in children with hepatitis A. Materials and Methods: In this prospective study, demographical information, clinical findings, and G6PD level of hepatitis A patients, who were visited at Pediatric Hematology clinic, were entered into the database...
April 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/28874682/hydrogen-peroxide-dynamics-in-subcellular-compartments-of-malaria-parasites-using-genetically-encoded-redox-probes
#12
Mahsa Rahbari, Stefan Rahlfs, Jude M Przyborski, Anna Katharina Schuh, Nicholas H Hunt, David A Fidock, Georges E Grau, Katja Becker
Redox balance is essential for the survival, growth and multiplication of malaria parasites and oxidative stress is involved in the mechanism of action of many antimalarial drugs. Hydrogen peroxide (H2O2) plays an important role in redox signalling and pathogen-host cell interactions. For monitoring intra- and subcellular redox events, highly sensitive and specific probes are required. Here, we stably expressed the ratiometric H2O2 redox sensor roGFP2-Orp1 in the cytosol and the mitochondria of Plasmodium falciparum (P...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28869953/acute-kidney-injury-following-ingestion-of-henna-leaf-extract-a-case-report-from-myanmar
#13
Yi Yi Khine
Alternative medicine is gaining popularity worldwide. In Asia, particularly Southeast Asia, herbal medicine plays an important role in healthcare. A 34-year-old man from Yangon, Myanmar, was admitted to the medical ward of our hospital after ingesting a herbal remedy of boiled henna leaves (Dan Ywet in Burmese). He developed hemoglobinuria leading to acute kidney injury (AKI). The insult was severe, and he underwent 5 sessions of hemodialysis. His condition improved and within 7 weeks of injury, he made a full recovery...
2017: Blood Purification
https://www.readbyqxmd.com/read/28857064/implementation-of-g6pd-testing-and-primaquine-for-p-vivax-radical-cure-operational-perspectives-from-thailand-and-cambodia
#14
Suravadee Kitchakarn, Dysoley Lek, Sea Thol, Chantheasy Hok, Aungkana Saejeng, Rekol Huy, Nipon Chinanonwait, Krongthong Thimasarn, Chansuda Wongsrichanalai
Following progressive success in reducing the burden of malaria over the past two decades, countries of the Asia Pacific are now aiming for elimination of malaria by 2030. Plasmodium falciparum and Plasmodium vivax are the two main malaria species that are endemic in the region. P. vivax is generally perceived to be less severe but will be harder to eliminate, owing partly to its dormant liver stage (known as a hypnozoite) that can cause multiple relapses following an initial clinical episode caused by a mosquito-borne infection...
September 2017: WHO South-East Asia Journal of Public Health
https://www.readbyqxmd.com/read/28852037/the-g6pd-flow-cytometric-assay-is-a-reliable-tool-for-diagnosis-of-g6pd-deficiency-in-women-and-anaemic-subjects
#15
Germana Bancone, Michael Kalnoky, Cindy S Chu, Nongnud Chowwiwat, Maria Kahn, Benoit Malleret, Pornpimon Wilaisrisak, Laurent Rénia, Gonzalo J Domingo, Francois Nosten
Glucose-6-phosphate dehydrogenase (G6PD) activity is essential for redox equilibrium of red blood cells (RBCs) and, when compromised, the RBCs are more susceptible to haemolysis. 8-aminoquinolines (primaquine and tafenoquine) are used for the radical curative treatment of Plasmodium vivax malaria and can cause haemolysis in G6PD deficient subjects. Haemolytic risk is dependent on treatment dose and patient G6PD status but ultimately it correlates with the number of G6PD deficient RBCs. The G6PD spectrophotometric assay reliably identifies deficient subjects but is less reliable in heterozygous females, especially when other blood conditions are present...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28846107/nuclear-factor-e2-related-factor-2-has-a-differential-impact-on-mct1-and-mct4-lactate-carrier-expression-in-colonic-epithelial-cells-a-condition-favoring-metabolic-symbiosis-between-colorectal-cancer-and-stromal-cells
#16
K Diehl, L-A Dinges, O Helm, N Ammar, D Plundrich, A Arlt, C Röcken, S Sebens, H Schäfer
Malignant tumors, such as colorectal cancer (CRC), are heterogeneous diseases characterized by distinct metabolic phenotypes. These include Warburg- and reverse Warburg phenotypes depending on differential distribution of the lactate carrier proteins monocarboxylate transporter-4 and -1 (MCT4 and MCT1). Here, we elucidated the role of the antioxidant transcription factor nuclear factor E2-related factor-2 (Nrf2) as the key regulator of cellular adaptation to inflammatory/environmental stress in shaping the metabolism toward a reverse Warburg phenotype in malignant and premalignant colonic epithelial cells...
August 28, 2017: Oncogene
https://www.readbyqxmd.com/read/28830424/safety-of-primaquine-given-to-people-with-g6pd-deficiency-systematic-review-of-prospective-studies
#17
Olalekan A Uthman, Patricia M Graves, Rachel Saunders, Hellen Gelband, Marty Richardson, Paul Garner
BACKGROUND: Haemolysis risk with single dose or short course primaquine was evaluated in glucose-6-phosphate dehydrogenase (G6PD) deficient people. METHODS: Major electronic databases (to August 2016) were searched for single or short course 8-aminoquinolines (8-AQ) in (1) randomized comparisons against placebo in G6PD deficient people; and (2) observational comparisons in G6PD deficient compared to replete people. Two authors independently assessed eligibility, risk-of-bias, and extracted data...
August 22, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28828525/maternal-consumption-of-quinine-containing-sodas-may-induce-g6pd-crises-in-breastfed-children
#18
S Bichali, D Brault, C Masserot, C Boscher, M L Couec, G Deslandes, S Pissard, G Leverger, C Vauzelle, E Elefant, J C Rozé, A Cortey, Alexis Chenouard
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most common human enzyme defect often presenting with neonatal jaundice and/or hemolytic anemia. G6PD hemolytic events are linked with exposure to a pro-oxidant agent. We here report three cases of initial G6PD crises in breastfed children secondary to maternal consumption of a tonic drink which contains quinine. Quinine was found in breast milk of one of the mothers after she consumed tonic water. CONCLUSION: The amount of quinine that is transmitted through breast milk appears to be sufficient to induce G6PD crises in breastfed children...
August 21, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28826608/high-throughput-multiplex-genotyping-directly-from-blood-or-dried-blood-spot-without-dna-extraction-for-the-screening-of-multiple-g6pd-gene-variants-at-risk-for-drug-induced-hemolysis
#19
Xiaoyi Tian, Jun Zhou, Ye Zhao, Zhibin Cheng, Wenqi Song, Yu Sun, Xiaodong Sun, Zhi Zheng
Clinical or epidemiologic screening of single-nucleotide polymorphism markers requires large-scale multiplexed genotyping. Available genotyping tools require DNA extraction and multiplex PCR, which may limit throughput and suffer amplification bias. Herein, a novel genotyping approach has been developed, multiplex extension and ligation-based probe amplification (MELPA), which eliminates DNA extraction and achieves uniform PCR amplification. MELPA lyses blood or dried blood spot and directly captures specific target DNA to 96-well plates using tailed probes...
September 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28820691/field-trial-of-the-carestart-biosensor-analyzer-for-the-determination-of-glucose-6-phosphate-dehydrogenase-activity-in-haiti
#20
Thomas A Weppelmann, Michael E von Fricken, Tara D Wilfong, Elisa Aguenza, Taina T Philippe, Bernard A Okech
Throughout many developing and tropical countries around the world, malaria remains a significant threat to human health. One barrier to malaria elimination is the ability to safely administer primaquine chemotherapy for the radical cure of malaria infections in populations with a high prevalence of glucose-6-phosphate dehydrogenase (G6PD) deficiency. In the current study, a field trial of the world's first quantitative, point-of-care assay for measuring G6PD activity was conducted in Haiti. The performance of the CareStart Biosensor Analyzer was compared with the gold standard spectrophotometric assay and genotyping of the G6PD allele in schoolchildren (N = 343) from the Ouest Department of Haiti...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
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