keyword
MENU ▼
Read by QxMD icon Read
search

Kwiatkowski

keyword
https://www.readbyqxmd.com/read/28526297/modeling-the-structure-of-keratin-1-and-10-terminal-domains-and-their-misassembly-in-keratoderma
#1
Cedric Badowski, Adelene Y L Sim, Chandra Verma, Ildikó Szeverényi, Chidambaram Natesavelalar, Ana Terron-Kwiatkowski, John Harper, Edel A O'Toole, E Birgitte Lane
The terminal domains of suprabasal keratins of the skin epithelium are very resistant to evidence-based structural analysis because of their inherent flexibility and lack of predictable structure. We present a model for the structure and interactions of the head and tail domains of epidermal keratins K1 and K10, based on all-atom 3D simulations of keratin primary amino acid sequences, and tyrosine phosphorylation predictions, extracted from published databases. We observed that K1 and K10 end domains are likely to form a tetrameric terminal domain complex (TTDC) incorporating a reversibly extendable region potentially acting as a molecular spring...
May 16, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28522690/resistance-to-malaria-through-structural-variation-of-red-blood-cell-invasion-receptors
#2
Ellen M Leffler, Gavin Band, George B J Busby, Katja Kivinen, Quang Si Le, Geraldine M Clarke, Kalifa A Bojang, David J Conway, Muminatou Jallow, Fatoumatta Sisay-Joof, Edith C Bougouma, Valentina D Mangano, David Modiano, Sodiomon B Sirima, Eric Achidi, Tobias O Apinjoh, Kevin Marsh, Carolyne M Ndila, Norbert Peshu, Thomas N Williams, Chris Drakeley, Alphaxard Manjurano, Hugh Reyburn, Eleanor Riley, David Kachala, Malcolm Molyneux, Vysaul Nyirongo, Terrie Taylor, Nicole Thornton, Louise Tilley, Shane Grimsley, Eleanor Drury, Jim Stalker, Victoria Cornelius, Christina Hubbart, Anna E Jeffreys, Kate Rowlands, Kirk A Rockett, Chris C A Spencer, Dominic P Kwiatkowski
The malaria parasite Plasmodium falciparum invades human red blood cells via interactions between host and parasite surface proteins. By analyzing genome sequence data from human populations, including 1269 individuals from sub-Saharan Africa, we identify a diverse array of large copy number variants affecting the host invasion receptor genes GYPA and GYPB We find that a nearby association with severe malaria is explained by a complex structural rearrangement involving the loss of GYPB and gain of two GYPB-A hybrid genes, which encode a serologically distinct blood group antigen known as Dantu...
May 18, 2017: Science
https://www.readbyqxmd.com/read/28509311/ultrastructural-characteristics-of-myenteric-plexus-in-patients-with-colorectal-cancer
#3
Agata Zauszkiewicz-Pawlak, Janusz Godlewski, Przemyslaw Kwiatkowski, Zbigniew Kmiec
INTRODUCTION: It have been found previously that colorectal cancer (CRC) is accompanied by atrophy of myenteric plexuses (MPs) localized close to the tumor. The aim of the study was to compare ultrastructure of MPs localized in the unchanged part of the colon wall distant to CRC tumor with the ultrastructure of MPs in the vicinity of CRC tumor. MATERIAL AND METHODS: The present study was conducted using post-operative material derived from 11 patients with CRC. Samples of colon wall were taken from the margin of cancer invasion and from a macroscopically unchanged segment of the large intestine, immediately fixed and processed according to the standard protocol for transmission electron microscopy studies...
2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28495449/peripheral-circulatory-disorders-in-essential-thrombocythemia
#4
Rafał Małecki, Małgorzata Gacka, Żanna Fiodorenko-Dumas, Ilias Dumas, Jacek Kwiatkowski, Rajmund Adamiec, Małgorzata Kuliszkiewicz-Janus
A significant amount of patients with essential thrombocythemia (ET) complain of symptoms including distal parts of the extremities (e.g., paresthesias or Raynaud's phenomenon). The aim of the present study was to examine peripheral circulation in the upper extremities of individuals with ET. The study included 45 ET patients and 30 control subjects. All participants were subjected to thermography, photoplethysmography, impedance plethysmography, and applanation tonometry pulse wave analysis. The patients with ET differed significantly from the control subjects in terms of 3rd finger skin temperature (mean 31...
May 7, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28494217/urinary-il-8-is-a-marker-of-early-and-long-term-graft-function-after-renal-transplantation
#5
Ewa Kwiatkowska, Leszek Domański, Joanna Bober, Krzysztof Safranow, Jolanta Szymańska-Pasternak, Aneta Sulecka, Andrzej Pawlik, Kazimierz Ciechanowski, Sebastian Kwiatkowski
In this study, we examined whether the IL-8 content of urine sampled on day 1 and day 14 after renal transplantation is a marker of early and long-term renal function. Moreover, we assessed whether its concentration is positively correlated with the matrix metalloproteinase-9 (MMP-9) content of urine sampled on day 1 and day 30 and 12 months after renal transplantation. Our analysis covered 87 patients who underwent a kidney transplant. The patients were observed for an average of 30 months (12-60 months)...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28487379/1-n-histidine-phosphorylation-of-chld-by-the-aaa-chli2-stimulates-magnesium-chelatase-activity-in-chlorophyll-synthesis
#6
Artur Sawicki, Shuaixiang Zhou, Kathrin Kwiatkowski, Meizhong Luo, Robert D Willows
Magnesium chelatase inserts magnesium into protoporphyrin during the biosynthesis of chlorophyll and bacteriochlorophyll. Enzyme activity is reconstituted by forming two separate pre-activated complexes consisting of a GUN4/ChlH/protoporphyrin IX substrate complex and a ChlI/ChlD enzyme "motor" complex . Formation of the ChlI/ChlD complex in both Chlamydomonas reinhardtii and Oryza sativa is accompanied by phosphorylation of ChlD by ChlI, but the orthologous protein complex from R. capsulatus, BchI/BchD, gives no detectable phosphorylation of BchD...
May 9, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28448199/deferiprone-for-the-treatment-of-transfusional-iron-overload-in-thalassemia
#7
Janet L Kwiatkowski, Ami Belmont
Transfusional iron overload can lead to hepatic fibrosis, arrhythmias and congestive heart failure and a number of endocrinopathies. Deferiprone is an oral iron chelator recently approved for use in the United States as a second line agent for the treatment of transfusional iron overload in patients with thalassemia. Areas covered: This article will review the data regarding the efficacy of deferiprone for iron chelation and prevention and reversal of iron related complications, the drug's adverse effect profile, and the use of this drug in combination regimens...
April 27, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28448054/lipid-droplet-isolation-for-quantitative-mass-spectrometry-analysis
#8
Kathrin Rösch, Marcel Kwiatkowski, Hartmut Schlüter, Eva Herker
Lipid droplets are vital to the replication of a variety of different pathogens, most prominently the Hepatitis C Virus (HCV), as the putative site of virion morphogenesis. Quantitative lipid droplet proteome analysis can be used to identify proteins that localize to or are displaced from lipid droplets under conditions such as virus infections. Here, we describe a protocol that has been successfully used to characterize the changes in the lipid droplet proteome following infection with HCV. We use Stable Isotope Labeling with Amino Acids in Cell Culture (SILAC) and thus label the complete proteome of one population of cells with "heavy" amino acids to quantitate the proteins by mass spectrometry...
April 17, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28446930/revisional-bariatric-surgery-after-failed-laparoscopic-adjustable-gastric-banding-a-single-center-long-term-retrospective-study
#9
Piotr K Kowalewski, Robert Olszewski, Andrzej P Kwiatkowski, Krzysztof Paśnik
INTRODUCTION: Laparoscopic adjustable gastric banding (LAGB) used to be one of the most popular bariatric procedures. AIM: To present our institution's experience with LAGB, its complications, causes of failure and revisional bariatric procedures, in a long-term follow-up. MATERIAL AND METHODS: Records of patients who underwent pars flaccida LAGB from 2003 to 2006 were gathered. We selected data on patients with a history of additional bariatric procedures...
2017: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/28430808/quantification-of-hypoxia-related-gene-expression-as-a-potential-approach-for-clinical-outcome-prediction-in-breast-cancer
#10
Abderrahim El Guerrab, Anne Cayre, Fabrice Kwiatkowski, Maud Privat, Jean-Marc Rossignol, Fabrice Rossignol, Frédérique Penault-Llorca, Yves-Jean Bignon
Breast cancers are solid tumors frequently characterized by regions with low oxygen concentrations. Cellular adaptations to hypoxia are mainly determined by "hypoxia inducible factors" that mediate transcriptional modifications involved in drug resistance and tumor progression leading to metastasis and relapse occurrence. In this study, we investigated the prognostic value of hypoxia-related gene expression in breast cancer. A systematic review was conducted to select a set of 45 genes involved in hypoxia signaling pathways and breast tumor progression...
2017: PloS One
https://www.readbyqxmd.com/read/28427084/long-term-improvement-of-breast-cancer-survivors-quality-of-life-by-a-2-week-group-physical-and-educational-intervention-5-year-update-of-the-pacthe-trial
#11
Fabrice Kwiatkowski, Marie-Ange Mouret-Reynier, Martine Duclos, François Bridon, Thierry Hanh, Isabelle Van Praagh-Doreau, Armelle Travade, Marie-Paule Vasson, Sylvie Jouvency, Christian Roques, Yves-Jean Bignon
BACKGROUND: The advantages of adapted physical activity and nutritional education (APANE) on breast cancer prognosis and quality of life (QoL) are well known, but long-term results are lacking. METHODS: A randomised controlled trial testing a 2-week intervention in hydrothermal centres including APANE enrolled 251 patients post-chemotherapy. QoL and weight control were significantly improved at 12 months. A 5-year follow-up was performed to evaluate the persistence of improvements...
April 20, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28425201/numerical-analysis-of-crimping-and-inflation-process-of-balloon-expandable-coronary-stent-using-implicit-solution
#12
Jakub Bukala, Piotr Kwiatkowski, Jerzy Malachowski
The paper presents an applied methodology for numerical Finite Element analysis of coronary stent crimping and the free inflation process with the use of a folded non-compliant angioplasty balloon. The use of an implicit scheme is considered as the most original part of the work, as an explicit finite element procedure is very often preferred. Hitherto, when the implicit solution was used for the Finite Element solution, the simulated issue was largely simplified. Therefore, the authors focused on the modelling methodology with minimum possible simplification, i...
April 20, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28419890/pragmatic-trial-of-a-study-navigator-model-nau-vs-ambassador-model-n-to-increase-enrollment-to-health-research-among-community-members-who-use-illicit-drugs
#13
Linda B Cottler, Catherine W Striley, Amy L Elliott, Abigail E Zulich, Evan Kwiatkowski, David R Nelson
BACKGROUND: Although drug use is common in the population, drug users are sometimes excluded from research without justification. Two models of individualized study matching were compared for effectiveness in enrolling people who "endorsed current drug use" and those who "did not" into appropriate research. METHODS: Participants in the NIDA-funded Transformative Approach to Reduce Research Disparities Towards Drug Users study (Navigation Study) were recruited through a Clinical and Translational Science Award (CTSA) community engagement model...
April 4, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28417969/massive-introgression-drives-species-radiation-at-the-range-limit-of-anopheles-gambiae
#14
José L Vicente, Christopher S Clarkson, Beniamino Caputo, Bruno Gomes, Marco Pombi, Carla A Sousa, Tiago Antao, João Dinis, Giordano Bottà, Emiliano Mancini, Vincenzo Petrarca, Daniel Mead, Eleanor Drury, James Stalker, Alistair Miles, Dominic P Kwiatkowski, Martin J Donnelly, Amabélia Rodrigues, Alessandra Della Torre, David Weetman, João Pinto
Impacts of introgressive hybridisation may range from genomic erosion and species collapse to rapid adaptation and speciation but opportunities to study these dynamics are rare. We investigated the extent, causes and consequences of a hybrid zone between Anopheles coluzzii and Anopheles gambiae in Guinea-Bissau, where high hybridisation rates appear to be stable at least since the 1990s. Anopheles gambiae was genetically partitioned into inland and coastal subpopulations, separated by a central region dominated by A...
April 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28412593/bootstrapping-language-acquisition
#15
Omri Abend, Tom Kwiatkowski, Nathaniel J Smith, Sharon Goldwater, Mark Steedman
The semantic bootstrapping hypothesis proposes that children acquire their native language through exposure to sentences of the language paired with structured representations of their meaning, whose component substructures can be associated with words and syntactic structures used to express these concepts. The child's task is then to learn a language-specific grammar and lexicon based on (probably contextually ambiguous, possibly somewhat noisy) pairs of sentences and their meaning representations (logical forms)...
July 2017: Cognition
https://www.readbyqxmd.com/read/28401542/quality-of-life-after-mastectomy-with-or-without-immediate-breast-reconstruction
#16
J Dauplat, F Kwiatkowski, P Rouanet, E Delay, K Clough, J L Verhaeghe, I Raoust, G Houvenaeghel, P Lemasurier, E Thivat, C Pomel
BACKGROUND: Mastectomy with immediate breast reconstruction (IBR) is a surgical strategy in breast cancer when breast-conserving surgery is not an option. There is a lack of evidence showing an advantage of mastectomy plus IBR over mastectomy alone on health-related quality of life (QoL). METHODS: A large prospective multicentre survey, STIC-RMI (support of innovative and expensive techniques - immediate breast reconstruction), was undertaken to study the changes in QoL in patients treated by mastectomy with or without IBR...
April 12, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28387316/lkb1-inactivation-drives-lung-cancer-lineage-switching-governed-by-polycomb-repressive-complex-2
#17
Haikuo Zhang, Christine Fillmore Brainson, Shohei Koyama, Amanda J Redig, Ting Chen, Shuai Li, Manav Gupta, Carolina Garcia-de-Alba, Margherita Paschini, Grit S Herter-Sprie, Gang Lu, Xin Zhang, Bryan P Marsh, Stephanie J Tuminello, Chunxiao Xu, Zhao Chen, Xiaoen Wang, Esra A Akbay, Mei Zheng, Sangeetha Palakurthi, Lynette M Sholl, Anil K Rustgi, David J Kwiatkowski, J Alan Diehl, Adam J Bass, Norman E Sharpless, Glenn Dranoff, Peter S Hammerman, Hongbin Ji, Nabeel Bardeesy, Dieter Saur, Hideo Watanabe, Carla F Kim, Kwok-Kin Wong
Adenosquamous lung tumours, which are extremely poor prognosis, may result from cellular plasticity. Here, we demonstrate lineage switching of KRAS+ lung adenocarcinomas (ADC) to squamous cell carcinoma (SCC) through deletion of Lkb1 (Stk11) in autochthonous and transplant models. Chromatin analysis reveals loss of H3K27me3 and gain of H3K27ac and H3K4me3 at squamous lineage genes, including Sox2, ΔNp63 and Ngfr. SCC lesions have higher levels of the H3K27 methyltransferase EZH2 than the ADC lesions, but there is a clear lack of the essential Polycomb Repressive Complex 2 (PRC2) subunit EED in the SCC lesions...
April 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28376164/germline-mutations-in-the-kallikrein-6-region-and-predisposition-for-aggressive-prostate-cancer
#18
Laurent Briollais, Hilmi Ozcelik, Jingxiong Xu, Maciej Kwiatkowski, Emilie Lalonde, Dorota H Sendorek, Neil E Fleshner, Franz Recker, Cynthia Kuk, Ekaterina Olkhov-Mitsel, Tristan Juvet, Ioannis Prassas, John Trachtenberg, Ants Toi, Michael Fraser, Theodorus van der Kwast, Robert G Bristow, Bharati Bapat, Eleftherios P Diamandis, Paul C Boutros, Alexandre R Zlotta
Background: There is a need for markers that can specifically identify individuals at increased risk of harboring aggressive forms of prostate cancer (PCa). Methods: We surveyed the Kallikrein ( KLK ) region ( KLK 1-15) for single-nucleotide polymorphisms (SNPs) associated with aggressive PCa (Gleason Score ≥ 8) in 1858 PCa patients. Discovery cohorts (Swiss arm of the European Randomized Study of Screening for PCa, n = 379; Toronto, Canada, n = 540) and a validation cohort (Prostate, Lung, Colorectal and Ovarian [PLCO] screening trial, n = 939) were analyzed...
April 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28361230/acute-kidney-injury-and-fluid-overload-in-infants-and-children-after-cardiac-surgery
#19
David M Kwiatkowski, Catherine D Krawczeski
Acute kidney injury is a common and serious complication after congenital heart surgery, particularly among infants. This comorbidity has been independently associated with adverse outcomes including an increase in mortality. Postoperative acute kidney injury has a complex pathophysiology with many risk factors, and therefore no single medication or therapy has been demonstrated to be effective for treatment or prevention. However, it has been established that the associated fluid overload is one of the major determinants of morbidity, particularly in infants after cardiac surgery...
March 30, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28337574/the-rs504393-influences-the-level-of-nociceptive-factors-and-enhances-opioid-analgesic-potency-in-neuropathic-rats
#20
Klaudia Kwiatkowski, Anna Piotrowska, Ewelina Rojewska, Wioletta Makuch, Joanna Mika
Increasing evidence has indicated that activated glial cells releasing nociceptive factors, such as interleukins and chemokines, are of key importance for neuropathic pain. Significant changes in the production of nociceptive factors are associated with the low effectiveness of opioids in neuropathic pain. Recently, it has been suggested that CCL2/CCR2 signaling is important for nociception. Here, we studied the time course changes in the mRNA/protein level of CD40/Iba-1, CCL2 and CCR2 in the spinal cord/dorsal root ganglia (DRG) in rats following chronic constriction injury (CCI) of the sciatic nerve...
March 23, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
keyword
keyword
70431
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"