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https://www.readbyqxmd.com/read/29033852/activation-of-casein-kinase-ii-by-gallic-acid-induces-bik-bax-bak-mediated-er-ca-ros-dependent-apoptosis-of-human-oral-cancer-cells
#1
Meng-Liang Lin, Shih-Shun Chen
Induction of the generation of endoplasmic reticulum (ER) calcium (Ca(++))-mediated reactive oxygen species (ROS) by gallic acid (GA) has been implicated in the mitochondrial apoptotic death of human oral cancer (OC) cells, but the molecular mechanism by which GA causes ER Ca(++) release of OC cells to undergo cell death remains unclear. Here, we report that GA-induced phosphorylation of B-cell lymphoma 2 (BCL-2)-interacting killer (BIK) (threonine (Thr) 33/Serine (Ser) 35) and p53 (Ser 15 and Ser 392), Bcl-2-associated x protein (BAX)/BCL-2 antagonist killer 1 (BAK) oligomerization on the ER and mitochondria, rising of cytosolic Ca(+)(+) and ROS, cytochrome c (Cyt c) release from the mitochondria, Ψm loss, and apoptosis were suppressed in cells co-treated with a specific inhibitor of casein kinase II (CK II) (4,5,6,7-tetrabromobenzotriazole)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29017540/only-half-of-the-mothers-practiced-early-initiation-of-breastfeeding-in-northwest-ethiopia-2015
#2
Amare Tariku, Gashaw Andargie Biks, Molla Mesele Wassie, Abebaw Gebeyehu Worku, Melaku Kindie Yenit
BACKGROUND: Early initiation of breastfeeding has been well-recognized in reducing neonatal mortality; however, it remains sub-optimal in Ethiopia. This study therefore assessed the prevalence of early initiation of breastfeeding and associated factors among mothers with children aged 6-24 months in Dabat Health and Demographic Surveillance System (HDSS) site, northwest Ethiopia, where literature on the issue is markedly scarce. METHODS: This community-based cross-sectional survey was carried out from May to June, 2015, at Dabat HDSS site, Dabat District...
October 10, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28986568/bik-reduces-hyperplastic-cells-by-increasing-bak-and-activating-dapk1-to-juxtapose-er-and-mitochondria
#3
Yohannes A Mebratu, Ivan Leyva-Baca, Marc G Wathelet, Neal Lacey, Hitendra S Chand, Augustine M K Choi, Yohannes Tesfaigzi
Bik reduces hyperplastic epithelial cells by releasing calcium from endoplasmic reticulum stores and causing apoptosis, but the detailed mechanisms are not known. Here we report that Bik dissociates the Bak/Bcl-2 complex to enrich for ER-associated Bak and interacts with the kinase domain of DAPk1 to form Bik-DAPk1-ERK1/2-Bak complex. Bik also disrupts the Bcl2-IP3R interaction to cause ER Ca(2+) release. The ER-associated Bak interacts with the kinase and calmodulin domains of DAPk1 to increase the contact sites of ER and mitochondria, and facilitate ER Ca(2+) uptake by mitochondria...
October 6, 2017: Nature Communications
https://www.readbyqxmd.com/read/28983977/quality-of-dutch-dermatological-guidelines-according-to-agree-ii
#4
R J Borgonjen, S F K Lubeek, C M Bik, J J E van Everdingen
The number of clinical practice guidelines is increasing, but their quality is variable.(1) However, healthcare professionals/users should be able to rely on methodologically sound guidelines that are helpful and applicable in practice. To objectively assess (methodological) guideline quality, experts developed the Appraisal of Guidelines for Research and Evaluation (AGREE) instrument. This article is protected by copyright. All rights reserved.
October 6, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28983058/red-cell-alloimmunization-is-associated-with-development-of-autoantibodies-and-increased-red-cell-transfusion-requirements-in-myelodysplastic-syndrome
#5
Deepak Singhal, Monika M Kutyna, Rakchha Chhetri, Li Yan A Wee, Sophia Hague, Lakshmi Nath, Shriram V Nath, Romi Sinha, Nicholas Wickham, Ian D Lewis, David M Ross, Peter G Bardy, Luen Bik To, John Reynolds, Erica M Wood, David J Roxby, Devendra K Hiwase
Up to 90% of myelodysplastic syndrome patients require red blood cell transfusion, however comprehensive data addressing red cell alloimmunization are limited. This study evaluates the incidence and clinical impact of red cell alloimmunization in a large cohort of myelodysplastic syndrome patients registered in the statewide South Australian-MDS registry. Median age of the 817 patients was 73 years, and 66% were male. The cumulative incidence of alloimmunization was 11%. Disease-modifying therapy was associated with a lower risk of alloimmunization...
October 5, 2017: Haematologica
https://www.readbyqxmd.com/read/28971907/self-reverting-mutations-partially-correct-the-blood-phenotype-in-a-diamond-blackfan-anemia-patient
#6
Parvathy Venugopal, Sarah Moore, David M Lawrence, Amee J George, Ross D Hannan, Sarah Ce Bray, Luen Bik To, Richard J D'Andrea, Jinghua Feng, Amanda Tirimacco, Alexandra L Yeoman, Chun Chun Young, Miriam Fine, Andreas W Schreiber, Christopher N Hahn, Christopher Barnett, Ben Saxon, Hamish S Scott
No abstract text is available yet for this article.
September 29, 2017: Haematologica
https://www.readbyqxmd.com/read/28959140/curcumin-reduces-mitomycin-c-resistance-in-breast-cancer-stem-cells-by-regulating-bcl-2-family-mediated-apoptosis
#7
Qian-Mei Zhou, Yang Sun, Yi-Yu Lu, Hui Zhang, Qi-Long Chen, Shi-Bing Su
BACKGROUND: Curcumin, a natural compound derived from the turmeric rhizome Curcuma longa Linn, has anticancer and chemoresistance reduction biological activities. We evaluated the efficacy of curcumin in sensitizing chemotherapy drugs through regulation of Bcl-2-mediated apoptosis in breast cancer stem-like cells (BCSCs). METHODS: Cell survival was measured using MTT assay. Apoptosis-related proteins were observed using western blot analysis. Apoptosis was detected with flow cytometric analysis and by Hoechst 33258 staining...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28940169/the-use-of-d2-and-benton-tests-for-assessment-of-attention-deficits-and-visual-memory-in-teenagers-with-phenylketonuria
#8
Bozena Didycz, Magdalena Nitecka, Miroslaw Bik-Multanowski
Hyperphenylalaninemia-related, subtle deficits of attention and of working memory are often reported in adolescents with phenylketonuria. Focused neuropsychological tests can be used to detect such deficits and to confirm the presence of poor metabolic control in the periods between routine blood phenylalanine tests, which are rarely performed in many patients from this age group due to their low treatment adherence.We assessed the practical value of the d2 test of attention and of the Benton visual retention test for identification of teenagers, who have a high risk of brain dysfunction due to hyperphenylalaninemia...
September 24, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28936587/metabolite-ratios-as-potential-biomarkers-for-type-2-diabetes-a-direct-study
#9
Sophie Molnos, Simone Wahl, Mark Haid, E Marelise W Eekhoff, René Pool, Anna Floegel, Joris Deelen, Daniela Much, Cornelia Prehn, Michaela Breier, Harmen H Draisma, Nienke van Leeuwen, Annemarie M C Simonis-Bik, Anna Jonsson, Gonneke Willemsen, Wolfgang Bernigau, Rui Wang-Sattler, Karsten Suhre, Annette Peters, Barbara Thorand, Christian Herder, Wolfgang Rathmann, Michael Roden, Christian Gieger, Mark H H Kramer, Diana van Heemst, Helle K Pedersen, Valborg Gudmundsdottir, Matthias B Schulze, Tobias Pischon, Eco J C de Geus, Heiner Boeing, Dorret I Boomsma, Anette G Ziegler, P Eline Slagboom, Sandra Hummel, Marian Beekman, Harald Grallert, Søren Brunak, Mark I McCarthy, Ramneek Gupta, Ewan R Pearson, Jerzy Adamski, Leen M 't Hart
AIMS/HYPOTHESIS: Circulating metabolites have been shown to reflect metabolic changes during the development of type 2 diabetes. In this study we examined the association of metabolite levels and pairwise metabolite ratios with insulin responses after glucose, glucagon-like peptide-1 (GLP-1) and arginine stimulation. We then investigated if the identified metabolite ratios were associated with measures of OGTT-derived beta cell function and with prevalent and incident type 2 diabetes...
September 21, 2017: Diabetologia
https://www.readbyqxmd.com/read/28930370/comparison-of-whole-genome-expression-profile-between-preterm-and-full-term-newborns
#10
Przemko Kwinta, Renata Bokiniec, Mirosław Bik-Multanowski, Clara-Cecilie Gunther, Agnieszka Grabowska, Teofila Książek, Anna Madetko-Talowska, Katarzyna Szewczyk, Monika Szwarc-Duma, Maria K Borszewska-Kornacka, Lars O Baumbusch, Cecilie Revhaug, Ola D Saugstad, Jacek J Pietrzyk
OBJECTIVES: Evaluate the time dependent expression of genes in preterm neonates and verify the influence of ontogenic maturation and the environmental factors on the gene expression after birth. MATERIAL AND METHODS: The study was carried out on 20 full-term newborns and 62 preterm newborns (mean birth weight = 1002 [g] (SD: 247), mean gestational age = 27.2 weeks (SD: 1.9)). Blood samples were drawn from all the study participants at birth and at the 36th week postmenstrual age from the preterm group to assess whole genome expression in umbilical cord blood and in peripheral blood leukocytes, respectively...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28926234/using-ultra-performance-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry-based-chemometrics-for-the-identification-of-anti-angiogenic-biflavonoids-from-edible-garcinia-species
#11
Ping Li, Grace Gar-Lee Yue, Hin-Fai Kwok, Chun-Lin Long, Clara Bik-San Lau, Edward J Kennelly
Garcinia xanthochymus fruits are edible and also used in traditional medicine. Our previous work showed that the isolated natural products from G. xanthochymus fruits have displayed antioxidant activity and cytotoxicity in the colon cancer cells. In this study, we developed a strategy to correlate a zebrafish angiogenesis assay with ultra-performance liquid chromatography quadrupole time of flight mass spectrometry-based chemometric analysis to identify potential anti-angiogenic activity compounds from G. xanthochymus fruits...
September 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28921802/environmental-dna-metabarcoding-transforming-how-we-survey-animal-and-plant-communities
#12
Kristy Deiner, Holly M Bik, Elvira Mächler, Mathew Seymour, Anaïs Lacoursière-Roussel, Florian Altermatt, Simon Creer, Iliana Bista, David M Lodge, Natasha de Vere, Michael E Pfrender, Louis Bernatchez
The genomic revolution has fundamentally changed how we survey biodiversity on earth. High-throughput sequencing ('HTS') platforms now enable the rapid sequencing of DNA from diverse kinds of environmental samples (termed 'environmental DNA' or 'eDNA'). Coupling HTS with our ability to associate sequences from eDNA with a taxonomic name is called 'eDNA metabarcoding' and offers a powerful molecular tool capable of non-invasively surveying species richness from many ecosystems. Here, we review the use of eDNA metabarcoding for surveying animal and plant richness, and the challenges in using eDNA approaches to estimate relative abundance...
September 16, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28878027/death-by-hdac%C3%A2-inhibition-in-synovial-sarcoma-cells
#13
Aimée N Laporte, Neal M Poulin, Jared J Barrott, Xiu Qing Wang, Alireza Lorzadeh, Ryan Vander Werff, Kevin B Jones, T Michael Underhill, Torsten O Nielsen
Conventional cytotoxic therapies for synovial sarcoma provide limited benefit, and no drugs specifically targeting the causative SS18-SSX fusion oncoprotein are currently available. Histone deacetylase (HDAC) inhibition has been shown in previous studies to disrupt the synovial sarcoma oncoprotein complex, resulting in apoptosis. To understand the molecular effects of HDAC inhibition, RNA-Seq transcriptome analysis was undertaken in six human synovial sarcoma cell lines. HDAC inhibition induced pathways of cell cycle arrest, neuronal differentiation and response to oxygen-containing species, effects also observed in other cancers treated with this class of drugs...
September 6, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28865290/erythrocyte-membrane-encapsulated-celecoxib-improves-the-cognitive-decline-of-alzheimer-s-disease-by-concurrently-inducing-neurogenesis-and-reducing-apoptosis-in-app-ps1-transgenic-mice
#14
Jing-Wen Guo, Pei-Pei Guan, Wei-Yan Ding, Si-Ling Wang, Xue-Shi Huang, Zhan-You Wang, Pu Wang
Alzheimer's disease (AD) is characterized by the loss of neurogenesis and excessive induction of apoptosis. The induction of neurogenesis and inhibition of apoptosis may be a promising therapeutic approach to combating the disease. Celecoxib (CB), a cyclooxygenase-2 specific inhibitor, could offer neuroprotection. Specifically, the CB-encapsulated erythrocyte membranes (CB-RBCMs) sustained the release of CB over a period of 72 h in vitro and exhibited high brain biodistribution efficiency following intranasal administration, which resulted in the clearance of aggregated β-amyloid proteins (Aβ) in neurons...
July 14, 2017: Biomaterials
https://www.readbyqxmd.com/read/28855206/hif-2%C3%AE-promotes-dissemination-of-plasma-cells-in-multiple-myeloma-by-regulating-cxcl12-cxcr4-and-ccr1
#15
Kate Vandyke, Mara N Zeissig, Duncan R Hewett, Sally K Martin, Krzysztof M Mrozik, Chee Man Cheong, Peter Diamond, L Bik To, Stan Gronthos, Daniel J Peet, Peter I Croucher, Andrew C W Zannettino
Disease progression and relapse in multiple myeloma is dependent on the ability of the multiple myeloma plasma cells (PC) to reenter the circulation and disseminate throughout the bone marrow. Increased bone marrow hypoxia is associated with increased recirculation of multiple myeloma PCs. Accordingly, we hypothesized that during chronic hypoxia, activation of HIF-2α may overcome the bone marrow retention signal provided by stromal-derived CXCL12, thereby enabling dissemination of multiple myeloma PCs. Here we demonstrate that HIF-2α upregulates multiple myeloma PC CXCL12 expression, decreasing migration toward CXCL12 and reducing adhesion to mesenchymal stromal cells in vitro We also found that HIF-2α strongly induced expression of the chemokine receptor CCR1 in multiple myeloma PCs...
October 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28839280/the-adjuvant-value-of-herba-cistanches-when-used-in-combination-with-statin-in-murine-models
#16
Elaine Wat, Chun Fai Ng, Chi Man Koon, Cheng Zhang, Si Gao, Brian Tomlinson, Clara Bik San Lau
Statins are well known to have muscle toxicity problem. Herba Cistanches (HC) is a Chinese herb traditionally used for pain in the loins and knees. Our previous in vitro study suggested that it could protect against statin-induced muscle toxicity. However, its in vivo protective effect has never been investigated. The objective of this study was to determine if the aqueous extract of HC (HCE) could prevent simvastatin-induced muscle toxicity in rats, and whether HCE could also exert beneficial effects on reducing high-fat diet-induced hypercholesterolemia and elevated liver cholesterol, thereby reducing the dose of simvastatin when used in combined therapy...
August 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28820884/let-s-rise-up-to-unite-taxonomy-and-technology
#17
Holly M Bik
What do you think of when you think of taxonomy? An 18th century gentlemen in breeches? Or perhaps botany drawings hung on the walls of a boutique hotel? Such old-fashioned conceptions to the contrary, taxonomy is alive today although constantly struggling for survival and recognition. The scientific community is losing valuable resources as taxonomy experts age and retire, and funding for morphological studies and species descriptions remains stagnant. At the same time, organismal knowledge (morphology, ecology, physiology) has never been more important: genomic studies are becoming more taxon focused, the scientific community is recognizing the limitations of traditional "model" organisms, and taxonomic expertise is desperately needed to fight against global biodiversity declines resulting from human impacts...
August 2017: PLoS Biology
https://www.readbyqxmd.com/read/28810458/cognitive-and-behavioral-coping-in-people-with-chronic-fatigue-syndrome-an-exploratory-study-searching-for-intervention-targets-for-depressive-symptoms
#18
Vivian Kraaij, Janneke Bik, Nadia Garnefski
The aim of the study was to find relevant coping factors for the development of psychological interventions for people with chronic fatigue syndrome who suffer from depressive symptoms. A total of 30 adults with chronic fatigue syndrome filled in the Cognitive Emotion Regulation Questionnaire, the COPE and the Hospital Anxiety and Depression Scale. The findings suggested that cognitive coping strategies have a stronger influence than behavioral coping strategies on depressive symptoms. Especially, the cognitive coping strategies refocusing positive, positive reappraisal and catastrophizing were of importance...
May 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28796811/biphasic-ros-production-p53-and-bik-dictate-the-mode-of-cell-death-in-response-to-dna-damage-in-colon-cancer-cells
#19
Ozgur Kutuk, Nurgul Aytan, Bahriye Karakas, Asli Giray Kurt, Ufuk Acikbas, Sehime Gulsun Temel, Huveyda Basaga
Necrosis, apoptosis and autophagic cell death are the main cell death pathways in multicellular organisms, all with distinct and overlapping cellular and biochemical features. DNA damage may trigger different types of cell death in cancer cells but the molecular events governing the mode of cell death remain elusive. Here we showed that increased BH3-only protein BIK levels promoted cisplatin- and UV-induced mitochondrial apoptosis and biphasic ROS production in HCT-116 wild-type cells. Nonetheless, early single peak of ROS formation along with lysosomal membrane permeabilization and cathepsin activation regulated cisplatin- and UV-induced necrosis in p53-null HCT-116 cells...
2017: PloS One
https://www.readbyqxmd.com/read/28781067/spatial-and-temporal-variation-of-intertidal-nematodes-in-the-northern-gulf-of-mexico-after-the-deepwater-horizon-oil-spill
#20
Pamela M Brannock, Jyotsna Sharma, Holly M Bik, W Kelley Thomas, Kenneth M Halanych
Nematodes are an abundant and diverse interstitial component of sedimentary habitats that have been reported to serve as important bioindicators. Though the 2010 Deepwater Horizon (DWH) disaster occurred 60 km offshore in the Gulf of Mexico (GOM) at a depth of 1525 m, oil rose to the surface and washed ashore, subjecting large segments of coastline in the northern GOM to contamination. Previous metabarcoding work shows intertidal nematode communities were negatively affected by the oil spill. Here we examine the subsequent recovery of nematode community structure at five sites along the Alabama coast over a two-year period...
July 6, 2017: Marine Environmental Research
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