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https://www.readbyqxmd.com/read/29786450/atrial-fibrillation-symptom-clusters-and-associated-clinical-characteristics-and-outcomes-a-cross-sectional-secondary-data-analysis
#1
Megan Streur, Sarah J Ratcliffe, David Callans, M Benjamin Shoemaker, Barbara Riegel
BACKGROUND: Symptom clusters among adults with atrial fibrillation have previously been identified but no study has examined the relationship between symptom clusters and outcomes. AIMS: The purpose of this study was to identify atrial fibrillation-specific symptom clusters, characterize individuals with each cluster, and determine whether symptom cluster membership is associated with healthcare utilization. METHODS: This was a cross-sectional secondary data analysis of 1501 adults from the Vanderbilt Atrial Fibrillation Registry with verified atrial fibrillation...
May 1, 2018: European Journal of Cardiovascular Nursing
https://www.readbyqxmd.com/read/29786170/immunopeptidomic-profiling-of-hla-a2-positive-triple-negative-breast-cancer-identifies-potential-immunotherapy-target-antigens
#2
Nicola Ternette, Marloes J M Olde Nordkamp, Julius Muller, Amanda P Anderson, Annalisa Nicastri, Adrian V S Hill, Benedikt M Kessler, Demin Li
The recent development in immune checkpoint inhibitors and chimeric antigen receptor (CAR) T-cells in the treatment of cancer has not only demonstrated the potency of utilising T-cell reactivity for cancer therapy, but has also highlighted the need for developing new approaches to discover targets suitable for such novel therapeutics. Here we analysed the immunopeptidomes of 6 HLA-A2-positive triple negative breast cancer (TNBC) samples by nano-ultra performance liquid chromatography tandem mass spectrometry (nUPLC-MS2 )...
May 22, 2018: Proteomics
https://www.readbyqxmd.com/read/29786141/an-inhibitory-antibody-targeting-carbonic-anhydrase-xii-abrogates-chemoresistance-and-significantly-reduces-lung-metastases-in-an-orthotopic-breast-cancer-model-in-vivo
#3
Bettina von Neubeck, Gabor Gondi, Chiara Riganti, Chenchen Pan, Arnaldo Parra Damas, Hagen Scherb, Ali Ertürk, Reinhard Zeidler
Carbonic Anhydrase XII (CAXII) is a membrane-tethered ectoenzyme involved in intracellular pH regulation and overexpressed across various types of human cancer. Because CAXII inhibition shows antitumour activity in vitro, it is thought that the enzyme is mandatory for maximum tumour growth, above all under hypoxic conditions. Recently, it has been shown that CAXII is co-expressed along with the P-glycoprotein (P-GP) on many tumour cells and that both proteins physically interact. Of interest, blocking CAXII activity also decreases P-GP activity in cancer cells both in vitro and in vivo...
May 22, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29786125/neoadjuvant-chemotherapy-use-in-breast-cancer-is-greatest-in-excellent-responders-triple-negative-and-her2-subtypes
#4
Brittany L Murphy, Courtney N Day, Tanya L Hoskin, Elizabeth B Habermann, Judy C Boughey
BACKGROUND: While breast cancer has historically been treated with surgery followed by adjuvant chemotherapy (AC) and radiation when indicated, neoadjuvant chemotherapy (NAC) use is thought to be increasing; however, the trends of its use in various biological subtypes have not been evaluated. We sought to evaluate the trend of NAC use over time by biological subtype. METHODS: We identified all patients with invasive breast cancer who underwent curative intent surgery and were treated with chemotherapy from 2010 to 2015 from the National Cancer Database...
May 21, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29785398/marker-assisted-introgression-of-saltol-qtl-enhances-seedling-stage-salt-tolerance-in-the-rice-variety-pusa-basmati-1
#5
Vivek Kumar Singh, Brahma Deo Singh, Amit Kumar, Sadhna Maurya, Subbaiyan Gopala Krishnan, Kunnummal Kurungara Vinod, Madan Pal Singh, Ranjith Kumar Ellur, Prolay Kumar Bhowmick, Ashok Kumar Singh
Marker-assisted selection is an unequivocal translational research tool for crop improvement in the genomics era. Pusa Basmati 1 (PB1) is an elite Indian Basmati rice cultivar sensitive to salinity. Here, we report enhanced seedling stage salt tolerance in improved PB1 genotypes developed through marker-assisted transfer of a major QTL, Saltol . A highly salt tolerant line, FL478, was used as the Saltol donor. Parental polymorphism survey using 456 microsatellite (SSR)/QTL-linked markers revealed 14.3% polymorphism between PB1 and FL478...
2018: International Journal of Genomics
https://www.readbyqxmd.com/read/29785289/what-is-the-role-of-wedge-resection-for-t1a-lung-cancer
#6
Sebron Harrison, Brendon Stiles, Nasser Altorki
Since 1995, lobar resection became the standard of care for medically fit patients with early stage lung cancer. This was based on the results of a single randomized trial comparing lobectomy and sublobar resection (SLR) in stage I lung cancer conducted by the lung cancer study group between 1982 and 1988. The conclusions of the study included a statistically significant tripling in loco-regional recurrence (LR) after limited resection but no difference between the two arms of the trial in systemic recurrence...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29785158/obtaining-adequate-surgical-margin-status-in-breast-conservation-therapy-intraoperative-ultrasound-guided-resection-versus-specimen-mammography
#7
Maria Mihaela Pop, Silviu Cristian, Orsolya Hanko-Bauer, Dana Valentina Ghiga, Rares Georgescu
Background and aim: The purpose of breast-conserving surgery (BCS) for women with cancer is to perform an oncological radical procedure with disease-free margins at the final histological assessment and with the best aesthetic result possible. Intraoperative resected specimen ultrasound and intraoperative resected specimen mammography may reduce the rates of positive margins and reexcision among patients undergoing conserving therapy. Our objective is to compare the two methods with the histopathological results for a preset cut off and asses which parameters can influence the positive margin status...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29785156/correlations-of-aldehyde-dehydrogenase-1-aldh1-expression-with-traditional-prognostic-parameters-and-different-molecular-subtypes-of-breast-carcinoma
#8
Piyabi Sarkar, Keya Basu, Pubali Sarkar, Uttara Chatterjee, Madhumita Mukhopadhyay, Manoj Kumar Choudhuri, Diptendra Kumar Srakar
Background and aim: Breast cancer, a heterogeneous disease, is the most common cause of cancer-related death in women worldwide. Despite considerable developments in treatment modalities, a subset of patients with advanced-stage breast carcinoma display poor prognosis. Breast cancer heterogeneity and risk of recurrence could be explained with the help of cancer stem cell hypothesis. Stem cells have the capacity to self-renew and differentiate into multiple cell types. Aldehyde dehydrogenase-1 (ALDH1), an enzyme responsible for the oxidation of intracellular aldehydes, contributes to normal and tumor stem cell differentiation...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29785153/prevalence-of-deleterious-mutations-among-patients-with-breast-cancer-referred-for-multigene-panel-testing-in-a-romanian-population
#9
Iulian Gabriel Goidescu, Gabriela Caracostea, Dan Tudor Eniu, Florin Vasile Stamatian
Aim: Multigene panel testing for Hereditary Breast and Ovarian Cancer (HBOC) using next generation sequencing is becoming more common in medical care.We report our experience regarding deleterious mutations of high and moderate-risk breast cancer genes (BRCA1/2, TP53, STK11, CDH1, PTEN, PALB2, CHEK2, ATM), as well as more recently identified cancer genes, many of which have increased risk but less well-defined penetrance. Methods: Genetic testing was performed in 130 consecutive cases with breast cancer referred to our clinic for surgical evaluation and who met the 2016 National Comprehensive Cancer Network (NCCN) criteria for genetic testing...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29785017/myc-bcl2-bcl6-triple-hit-lymphoma-a-study-of-40-patients-with-a-comparison-to-myc-bcl2-and-myc-bcl6-double-hit-lymphomas
#10
Wenting Huang, L Jeffrey Medeiros, Pei Lin, Wei Wang, Guilin Tang, Joseph Khoury, Sergej Konoplev, C Cameron Yin, Jie Xu, Yasuhiro Oki, Shaoying Li
High-grade B-cell lymphomas with MYC, BCL2, and BCL6 rearrangements (triple hit lymphoma) are uncommon. We studied the clinicopathologic features of 40 patients with triple hit lymphoma and compared them to 157 patients with MYC/BCL2 double hit lymphoma and 13 patients with MYC/BCL6 double hit lymphoma. The triple hit lymphoma group included 25 men and 15 women with a median age of 61 years (range, 34-85). Nine patients had a history of B-cell lymphoma. Histologically, 23 (58%) cases were diffuse large B-cell lymphoma and 17 cases had features of B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma and Burkitt lymphoma...
May 21, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29784888/identification-of-brain-metastasis-genes-and-therapeutic-evaluation-of-histone-deacetylase-inhibitors-in-a-clinically-relevant-model-of-breast-cancer-brain-metastasis
#11
Soo-Hyun Kim, Richard P Redvers, Lap Hing Chi, Xiawei Ling, Andrew J Lucke, Robert C Reid, David P Fairlie, Ana Carolina Baptista Moreno Martin, Robin L Anderson, Delphine Denoyer, Normand Pouliot
Breast cancer brain metastasis remains largely incurable. While several mouse models have been developed to investigate the genes and mechanisms regulating breast cancer brain metastasis, these models often lack clinical relevance since they require the use of immune-compromised mice and/or are poorly metastatic to brain from the mammary gland. We describe the development and characterisation of an aggressive brain metastatic variant of the 4T1 syngeneic model (4T1Br4) that spontaneously metastasises to multiple organs, but is selectively more metastatic to the brain from the mammary gland than parental 4T1 tumours...
May 21, 2018: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/29784751/hepatocellular-carcinoma-updates-to-screening-and-diagnosis
#12
Anne M Covey
In what is considered to be "a global problem," liver cancer has tripled in incidence in the United States over the past 20 to 30 years, and is now present in 7 per 100,000 Americans. Thus, screening for disease should be at the forefront to effectively treat high-risk populations. At the 2018 NCCN 23rd Annual Conference, Dr. Anne M. Covey discussed the updated NCCN Guidelines for the screening and diagnosis of hepatocellular carcinoma, which place ultrasound as the most cost-effective and least toxic primary screening option, with a screening interval of approximately 6 months for individuals considered to be at high risk...
May 2018: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/29784737/nccn-guidelines-updates-breast-cancer
#13
Sharon H Giordano, Anthony D Elias, William J Gradishar
The emergence of CDK4/6 inhibitors has changed the treatment algorithm for advanced/metastatic estrogen receptor-positive breast cancer. In pivotal trials of palbociclib, ribociclib, and abemaciclib, doubling in progression-free survival has been seen. All 3 agents in this class are now included in the NCCN Guidelines for Breast Cancer, and clinicians should be incorporating these agents into their treatment algorithms. The other important issue in this breast cancer setting is extended duration of endocrine therapy...
May 2018: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/29783787/plasma-pharmacokinetic-determination-of-canagliflozin-and-its-metabolites-in-a-type-2-diabetic-rat-model-by-uplc-ms-ms
#14
Song-Tao Dong, Hui-Min Niu, Yin Wu, Jia-Lei Jiang, Ying Li, Kun-Yu Jiang, Xin Wang, Mao-Fan Zhang, Ming-Feng Han, Sheng-Nan Meng
Canagliflozin is a novel, orally selective inhibitor of sodium-dependent glucose co-transporter-2 (SGLT2) for the treatment of patients with type 2 diabetes mellitus. In this study, a sensitive and efficient UPLC-MS/MS method for the quantification of canagliflozin and its metabolites in rat plasma was established and applied to pharmacokinetics in a type 2 diabetic rat model. We firstly investigated the pharmacokinetic changes of canagliflozin and its metabolites in type 2 diabetic rats in order to use canagliflozin more safely, reasonably and effectively...
May 20, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29783782/3d-target-localization-of-modified-3d-music-for-a-triple-channel-k-band-radar
#15
Ying-Chun Li, Byunggil Choi, Jong-Wha Chong, Daegun Oh
In this paper, a modified 3D multiple signal classification (MUSIC) algorithm is proposed for joint estimation of range, azimuth, and elevation angles of K-band radar with a small 2 × 2 horn antenna array. Three channels of the 2 × 2 horn antenna array are utilized as receiving channels, and the other one is a transmitting antenna. The proposed modified 3D MUSIC is designed to make use of a stacked autocorrelation matrix, whose element matrices are related to each other in the spatial domain. An augmented 2D steering vector based on the stacked autocorrelation matrix is proposed for the modified 3D MUSIC, instead of the conventional 3D steering vector...
May 20, 2018: Sensors
https://www.readbyqxmd.com/read/29783652/pituitary-gonadal-thyroid-hormones-and-endocrine-disruptors-in-pre-and-postmenopausal-nigerian-women-with-er-pr-and-her-2-positive-and-negative-breast-cancers
#16
Olulope Ajayi, Mabel Charles-Davies, John Anetor, Adeyinka Ademola
Breast cancer is broadly sub-divided into hormone responsive and non-hormone responsive subtypes. Estradiol has been associated with hormone responsive breast cancers. There is, however, a paucity of information on the role of sex hormones, gonadotropins, and thyroid hormone in non-hormone responsive breast cancer. This study aimed to determine differences in the serum levels of sex hormones, gonadotropins, thyroid hormones, and endocrine disruptors (lead, cadmium, and arsenic) in Nigerian women with hormone responsive and non-hormone responsive breast cancers...
May 18, 2018: Medical Sciences: Open Access Journal
https://www.readbyqxmd.com/read/29783173/development-and-validation-of-an-analytical-method-for-regorafenib-and-its-metabolites-in-mouse-plasma
#17
Qiang Fu, Mingqing Chen, Shuiying Hu, Craig A McElroy, Ron H Mathijssen, Alex Sparreboom, Sharyn D Baker
An analytical method was developed for measuring the effect of OATP1B2 deficiency on plasma levels of the kinase inhibitor regorafenib and its metabolites regorafenib-N-oxide, N-desmethyl-regorafenib-N-oxide, and regorafenib-N-β-glucuronide (RG) in mice. Compounds were separated by liquid chromatography and monitored by a triple quadrupole mass spectrometer in the selected reaction monitoring mode after positive electrospray ionization. All calibration curves were linear in the selected concentration range (R2  ≥ 0...
May 5, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29782980/glu-residues-of-%C3%AE-delseed-motif-are-essential-for-peptide-binding-in-escherichia-coli-atp-synthase
#18
Sofiya Azim, Zulfiqar Ahmad
The current study establishes the necessity of Glu-381, Glu-384, and Glu-385 in the βDELSEED-motif of Escherichia coli ATP synthase for peptide binding and inhibition. Inhibitory profiles of wild type and mutant E. coli membrane bound F1 Fo ATP synthase were studied in the presence and absence of C-terminal NH2 bound melittin. Melittin-NH2 caused almost complete inhibition of wild type ATPase, while partial inhibition was observed for mutants where Glu was replaced with Ala, Arg, or Gln. Additionally, melittin-NH2 caused insignificant inhibition of a triple mutant where all three Glu residues were replaced with Ala residues, changing βDELSEED-motif to βDALSAAD-motif...
May 18, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29782975/roles-of-germline-jak2-activation-mutation-jak2-v625f-in-the-pathology-of-myeloproliferative-neoplasms
#19
Qing-Yun Wu, Meng-Meng Ma, Lin Fu, Yuan-Yuan Zhu, Yang Liu, Jiang Cao, Ping Zhou, Zhen-Yu Li, Ling-Yu Zeng, Feng Li, Xiao-Yun Wang, Kai-Lin Xu
Janus tyrosine kinase 2 (JAK2) mediates downstream signaling of cytokine receptors in all hematological lineages, constitutively active somatic JAK2 mutations play key roles in the pathology of myeloproliferative neoplasms (MPNs). Recently, germline JAK2 mutations are also associated with triple-negative MPNs. A novel germline mutation JAK2 V625F is reported to be involved in a subset of MPNs patients. However, the pathogenesis of this mutation caused MPN is still unclear. In this study, the homology models of JAK2 V625F showed that the newly formed interaction between F625 and Y613 disrupted the JAK2 JH1-JH2 domain interactions was responsible for its activation, when F625 and Y613 interaction was disrupted, its activity significantly decreased...
May 18, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29782890/novel-dental-adhesive-resin-with-crack-self-healing-antimicrobial-and-remineralization-properties
#20
Shichao Yue, Junling Wu, Qiang Zhang, Ke Zhang, Michael D Weir, Satoshi Imazato, Yuxing Bai, Hockin H K Xu
OBJECTIVES: Secondary caries at the tooth-restoration margins is a primary reason for restoration failure. Cracks at the margins lead to leakage which can trap bacteria, producing acids to cause caries. To date, there has been no report on developing an adhesive resin that has self-healing, antibacterial and remineralizing capabilities. The objectives of this study were to: (1) develop the first self-healing adhesive with antimicrobial and remineralizing capabilities, and (2) investigate the effects of incorporating microcapsules, dimethylaminohexadecyl methacrylate (DMAHDM) and nanoparticles of amorphous calcium phosphate (NACP) for the first time...
May 18, 2018: Journal of Dentistry
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