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https://www.readbyqxmd.com/read/29332331/egfr-mutations-and-tumor-metastases-in-patients-with-nonsmall-cell-lung-cancer-in-the-south-of-russia
#1
Oleg I Kit, Dmitry I Vodolazhsky, Natalia N Timoshkina, Lubov' Yu Vladimirova, Igor N Turkin, Ksenia A Kutsyn, Yaroslav S Enin, Svetlana B Panina, Vladimir Jurisic
PURPOSE: To assess the frequencies of somatic EGFR mutations in the tumor tissues of patients with non-small cell lung cancer (NSCLC) residing in the South of Russia (SR), and to define the relationship between genetic subtypes of NSCLC and the emergence of different types of metastases. METHODS: DNA was extracted from formalin-fixed parrafin embedded (FFPE) samples of 721 patients. A total of 29 somatic EGFR mutations were detected using commercial Therascreen EGFR RGQ PCR Kit...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29331864/taxonomic-studies-on-aegyria-apoliva-sp-nov-and-trithigmostoma-cucullulus-m%C3%A3-ller-1786-jankowski-1967-ciliophora-cyrtophoria-with-phylogenetic-analyses
#2
Xumiao Chen, Lifang Li, Saleh A Al-Farraj, Honggang Ma, Hongbo Pan
The morphology, including the ciliary pattern, of two cyrtophorid ciliates, namely Aegyria apoliva sp. nov. and Trithigmostoma cucullulus (Müller, 1786) Jankowski, 1967, were investigated. They were isolated from coastal water off Qingdao and from an estuarine habitat in south China, respectively. Aegyria apoliva sp. nov. is characterized as following: body size 100-120 × 50-70 μm in vivo with dark pigment spot on anterior left part of cell; 48-69 somatic kineties; one preoral and four or five circumoral kineties; 9-13 transpodial segments; 26-40 nematodesmal rods; 6-10 contractile vacuoles...
December 28, 2017: European Journal of Protistology
https://www.readbyqxmd.com/read/29331736/dysfunctional-telomeres-and-hematological-disorders
#3
REVIEW
Elena Fiorini, Andrea Santoni, Simona Colla
Telomere biology disorders, which are characterized by telomerase activity haploinsufficiency and accelerated telomere shortening, most commonly manifest as degenerative diseases. Tissues with high rates of cell turnover, such as those in the hematopoietic system, are particularly vulnerable to defects in telomere maintenance genes that eventually culminate in bone marrow (BM) failure syndromes, in which the BM cannot produce sufficient new blood cells. Here, we review how telomere defects induce degenerative phenotypes across multiple organs, with particular focus on how they impact the hematopoietic stem and progenitor compartment and affect hematopoietic stem cell (HSC) self-renewal and differentiation...
January 4, 2018: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/29331686/quercetin-decrease-somatic-cells-count-in-mastitis-of-dairy-cows
#4
Artur Burmańczuk, Piotr Hola, Andrzej Milczak, Tomasz Piech, Cezary Kowalski, Beata Wojciechowska, Tomasz Grabowski
Quercetin is a dietary flavonoid which has an effect on inflammation, angiogenesis and vascular inflammation. In several other flavonoids (e.g. kaempferol, astragalin, alpinetin, baicalein, indirubin), anti-inflammatory mechanism was proven by using mice mastitis model. The aim of the current study was pilot analysis of quercetin tolerability and its impact on somatic cells count (SCC) after multiple intramammary treatment on dairy cows with clinical mastitis. Based on SCC and clinical investigation, 9 dairy cows with clinical mastitis of one quarter were selected for the pilot study...
January 9, 2018: Research in Veterinary Science
https://www.readbyqxmd.com/read/29331471/symposium-review-novel-strategies-to-genetically-improve-mastitis-resistance-in-dairy-cattle
#5
P Martin, H W Barkema, L F Brito, S G Narayana, F Miglior
Mastitis is a disease of major economic importance to the dairy cattle sector because of the high incidence of clinical mastitis and prevalence of subclinical mastitis and, consequently, the costs associated with treatment, production losses, and reduced animal welfare. Disease-recording systems compiling data from a large number of farms are still not widely implemented around the world; thus, selection for mastitis resistance is often based on genetically correlated indicator traits such as somatic cell count (SCC), udder depth, and fore udder attachment...
January 10, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29331467/canadian-national-dairy-study-herd-level-milk-quality
#6
C A Bauman, H W Barkema, J Dubuc, G P Keefe, D F Kelton
The objective of this study was to estimate Canadian national milk quality parameters and estimate the bulk tank milk (BTM) prevalence of 4 mastitis pathogens, Staphylococcus aureus, Streptococcus agalactiae, Mycoplasma bovis, and Prototheca spp., on Canadian dairy farms. A questionnaire was sent to all Canadian dairy producers. Of the 1,062 producers who completed the questionnaire, 374 producers from across the country were visited and milking hygiene was assessed. Farm-level milk quality data for all Canadian dairy producers was collected from the provincial marketing boards and combined with the questionnaire and farm visit data...
January 10, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29331464/somatic-cell-count-based-selection-reduces-susceptibility-to-energy-shortage-during-early-lactation-in-a-sheep-model
#7
J Bouvier-Muller, C Allain, F Enjalbert, Y Farizon, D Portes, G Foucras, R Rupp
During the transition from late gestation to early lactation ruminants experience a negative energy balance (NEB), which is considered to increase susceptibility to mammary infections. Our previous study in 2 divergent lines of sheep selected for high and low somatic cell score (SCS) suggested an association between the response to NEB and genetic susceptibility to mastitis. Forty-eight early-lactation primiparous dairy ewes from the 2 SCS genetic lines were allocated to 2 homogeneous subgroups-an NEB group, which was energy restricted and received 60% of the energy requirements for 15 d, and a control-fed group-to obtain 4 balanced groups of 12 ewes: high-SCS positive energy balance, low-SCS positive energy balance, high-SCS NEB, and low-SCS NEB...
January 10, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29331192/-psychiatry-and-palliative-care-collaboration-for-the-benefit-of-the-patient
#8
REVIEW
Lionel Regard
As palliative care units continue to develop, the provision of end-of-life care for patients with a chronic mental illness needs to be addressed. Aside from the somatic comorbidities to which these patients are particularly exposed and in view of the specificity of psychiatric treatment, the forms of end-of-life support for a patient with schizophrenia are described here, based on the experience of a psychiatric unit in the Var region.
January 2018: Revue de L'infirmière
https://www.readbyqxmd.com/read/29330893/mitogenomic-differences-between-the-normal-and-tumour-cells-of-colorectal-cancer-patients
#9
Katarzyna Skonieczna, Boris Malyarchuk, Arkadiusz Jawień, Andrzej Marszałek, Zbigniew Banaszkiewicz, Paweł Jarmocik, Tomasz Grzybowski
So far, a reliable spectrum of mitochondrial DNA mutations in colorectal cancer cells is still unknown, and neither is their significance in carcinogenesis. Indeed, it remains debatable whether mtDNA mutations are "drivers" or "passengers" of colorectal carcinogenesis. Thus, we analyzed 200 mitogenomes from normal and cancer tissues of 100 colorectal cancer patients. Minority variant mutations were detected at the 1% level. We showed that somatic mutations frequently occur in colorectal cancer cells (75%) and are randomly distributed across the mitochondrial genome...
January 12, 2018: Human Mutation
https://www.readbyqxmd.com/read/29330617/characterizing-genomic-differences-of-human-cancer-stratified-by-the-tp53-mutation-status
#10
Mengyao Wang, Chao Yang, Xiuqing Zhang, Xiangchun Li
The key roles of the TP53 mutation in cancer have been well established. TP53 is the most frequently mutated gene, and its inactivation is widespread among human cancer types. However, the landscape of genomic alterations in human cancers stratified by the TP53 mutation has not yet been described. We obtained somatic mutation and copy number change data of 6551 regular-mutated samples from the Cancer Genome Atlas (TCGA) and compared significantly mutated genes (SMGs), copy number alterations, mutational signatures and mutational strand asymmetries between cancer samples with and without the TP53 mutation...
January 12, 2018: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/29330447/human-placental-derived-adherent-stromal-cells-co-induced-with-tnf-%C3%AE-and-ifn-%C3%AE-inhibit-triple-negative-breast-cancer-in-nude-mouse-xenograft-models
#11
Hoshea Allen, Niva Shraga-Heled, Michal Blumenfeld, Tamar Dego-Ashto, Dana Fuchs-Telem, Ariel Gilert, Zami Aberman, Racheli Ofir
Culturing 3D-expanded human placental-derived adherent stromal cells (ASCs) in the presence of tumor necrosis factor-alpha (TNF-α) and interferon-gamma (IFN-γ) transiently upregulated the secretion of numerous anti-proliferative, anti-angiogenic and pro-inflammatory cytokines. In a 3D-spheroid screening assay, conditioned medium from these induced-ASCs inhibited proliferation of cancer cell lines, including triple-negative breast cancer (TNBC) lines. In vitro co-culture studies of induced-ASCs with MDA-MB-231 human breast carcinoma cells, a model representing TNBC, supports a mechanism involving immunomodulation and angiogenesis inhibition...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330437/a-computational-assay-of-estrogen-receptor-%C3%AE-antagonists-reveals-the-key-common-structural-traits-of-drugs-effectively-fighting-refractory-breast-cancers
#12
Matic Pavlin, Angelo Spinello, Marzia Pennati, Nadia Zaffaroni, Silvia Gobbi, Alessandra Bisi, Giorgio Colombo, Alessandra Magistrato
Somatic mutations of the Estrogen Receptor α (ERα) occur with an up to 40% incidence in ER sensitive breast cancer (BC) patients undergoing prolonged endocrine treatments. These polymorphisms are implicated in acquired resistance, disease relapse, and increased mortality rates, hence representing a current major clinical challenge. Here, multi-microseconds (12.5 µs) molecular dynamics simulations revealed that recurrent ERα polymorphisms (i. e. L536Q, Y537S, Y537N, D538G) (mERα) are constitutively active in their apo form and that they prompt the selection of an agonist (active)-like conformation even upon antagonists binding...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330207/early-assessment-of-lung-cancer-immunotherapy-response-via-circulating-tumor-dna
#13
Sarah B Goldberg, Azeet Narayan, Adam J Kole, Roy H Decker, Jimmitti Teysir, Nicholas J Carriero, Angela Lee, Roxanne Nemati, Sameer K Nath, Shrikant M Mane, Yanhong Deng, Nitin Sukumar, Daniel Zelterman, Daniel J Boffa, Katerina Politi, Scott Gettinger, Lynn D Wilson, Roy S Herbst, Abhijit A Patel
PURPOSE: Decisions to continue or suspend therapy with immune checkpoint inhibitors are commonly guided by tumor dynamics seen on serial imaging.  However, immunotherapy responses are uniquely challenging to interpret because tumors often shrink slowly or can appear transiently enlarged due to inflammation.  We hypothesized that monitoring tumor cell death in real-time by quantifying changes in circulating tumor DNA (ctDNA) levels could enable early assessment of immunotherapy efficacy...
January 12, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29330206/evolution-of-cytogenetically-normal-acute-myeloid-leukemia-during-therapy-and-relapse-an-exome-sequencing-study-of-50-patients
#14
Philipp A Greif, Luise Hartmann, Sebastian Vosberg, Sophie Stief, Raphael Mattes, Ines Hellmann, Klaus H Metzeler, Tobias Herold, Stefanos Bamopoulos, Paul Kerbs, Vindi Jurinovic, Daniela Schumacher, Friederike Pastore, Kathrin Bräundl, Evelyn Zellmeier, Bianka Ksienzyk, Nikola Konstandin, Stephanie Schneider, Alexander Graf, Stefan Krebs, Helmut Blum, Martin Neumann, Claudia Baldus, Stefan K Bohlander, Stephan Wolf, Dennis Goerlich, Wolfgang E Berdel, Bernhard J Woermann, Wolfgang Hiddemann, Karsten Spiekermann
PURPOSE: To study mechanisms of therapy-resistance and disease progression, we analyzed the evolution of cytogenetically normal acute myeloid leukemia (CN-AML) based on somatic alterations. EXPERIMENTAL DESIGN: We performed exome-sequencing of matched diagnosis, remission and relapse samples from 50 CN-AML patients treated with intensive chemotherapy. Mutation patterns were correlated with clinical parameters. RESULTS: Evolutionary patterns correlated with clinical outcome...
January 12, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29329944/use-of-superarms-egfr-mutation-detection-kit-to-detect-egfr-in-plasma-cell-free-dna-of-patients-with-lung-adenocarcinoma
#15
Shaohua Cui, Lin Ye, Huimin Wang, Tianqing Chu, Yizhuo Zhao, Aiqin Gu, Liwen Xiong, Chunlei Shi, Liyan Jiang
BACKGROUND: The SuperARMS EGFR Mutation Detection Kit (SuperARMS) is highly selective and sensitive and able to detect 41 of the most common somatic mutations in exons 18 to 21 of the epidermal growth factor receptor gene (EGFR). It allows for the detection of 0.2% to 0.8% mutant DNA in a background of 99.8% to 99.2% normal DNA. The present study assessed the performance of SuperARMS in detecting EGFR mutations in cell-free DNA (cfDNA) samples derived from plasma in patients with advanced lung adenocarcinoma...
December 21, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/29329488/genetic-and-molecular-insights-into-genotype-phenotype-relationships-in-osteopathia-striata-with-cranial-sclerosis-oscs-through-the-analysis-of-novel-mouse-wtx-mutant-alleles
#16
Glenda Comai, Agnès Boutet, Kristina Tanneberger, Filippo Massa, Ana-Sofia Rocha, Aurelie Charlet, Clara Panzolini, Fariba Jian Motamedi, Robert Brommage, Wolfgang Hans, Thomas Funck-Brentano, Martin Hrabe de Angelis, Christine Hartmann, Martine Cohen-Solal, Jürgen Behrens, Andreas Schedl
The X-linked WTX/AMER1 protein forms an important component of the β-catenin destruction complex that can both enhance and suppress canonical β-catenin signalling. Somatic mutations in WTX/AMER1 have been found in a proportion of the pediatric kidney cancer Wilms' tumour. By contrast, germline mutations cause the severe sclerosing bone dysplasia osteopathia striata congenita with cranial sclerosis (OSCS), a condition usually associated with fetal or perinatal lethality in male patients. Here we addressed the developmental and molecular function of WTX by generating two novel mouse alleles...
January 12, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29329208/advances-in-molecular-profiling-and-categorisation-of-pancreatic-adenocarcinoma-and-the-implications-for-therapy
#17
REVIEW
Rille Pihlak, Jamie M J Weaver, Juan W Valle, Mairéad G McNamara
Pancreatic ductal adenocarcinoma (PDAC) continues to be a disease with poor outcomes and short-lived treatment responses. New information is emerging from genome sequencing identifying potential subgroups based on somatic and germline mutations. A variety of different mutations and mutational signatures have been identified; the driver mutation in around 93% of PDAC is KRAS, with other recorded alterations being SMAD4 and CDKN2A. Mutations in the deoxyribonucleic acid (DNA) damage repair pathway have also been investigated in PDAC and multiple clinical trials are ongoing with DNA-damaging agents...
January 12, 2018: Cancers
https://www.readbyqxmd.com/read/29329049/the-traumatized-body-long-term-ptsd-and-its-implications-for-the-orientation-towards-bodily-signals
#18
Noga Tsur, Ruth Defrin, Yael Lahav, Zahava Solomon
Orientation to bodily signals is defined as the way somatic sensations are attended, perceived and interpreted. Research suggests that trauma exposure, particularly the pathological reaction to trauma (i.e., PTSD), is associated with catastrophic and frightful orientation to bodily signals. However, little is known regarding the long-term ramifications of trauma exposure and PTSD for orientation to bodily signals. Less is known regarding which PTSD symptom cluster manifests in the 'somatic route' through which orientation to bodily signals is altered...
January 5, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29328449/bioinformatics-analysis-to-screen-key-genes-implicated-in-the-differentiation-of-induced-pluripotent-stem-cells-to-hepatocytes
#19
Rui Lin, Yufeng Wang, Kun Ji, Zhongyan Liu, Shuai Xiao, Dehua Zhou, Quanning Chen, Baomin Shi
Due to the lack of potential organs, hepatocellular transplantation has been considered for treating end-stage liver disease. Induced pluripotent stem cells (iPSCs) are reverted from somatic cells and are able to differentiate into hepatocytes. The present study aimed to investigate the mechanisms underlying iPSC differentiation to hepatocytes. GSE66076 was downloaded from the Gene Expression Omnibus; this database includes data from 3 undifferentiated (T0), 3 definitive endoderm (T5), and 3 early hepatocyte (T24) samples across hepatic‑directed differentiation of iPSCs...
January 5, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29328349/sexual-dimorphism-in-physical-education-students-of-equal-body-height
#20
Józef Tatarczuk, Ryszard Asienkiewicz, Artur Wandycz
The aim: This paper's aim is to assess the level of development and size of particular body parts and dimorphic differences with regard to body height. Methods: The research was carried out over the period of 1995-2010 on a 1,969-strong cohort of first-year students of physical education, aged 19-21. The following somatic features were measured: body height and weight, breadth of distal femoral epiphysis, breadth of distal brachial epiphysis, four skinfolds, arm circumference, and calf circumference. Using the results, the shares of endomorphy, mesomorphy, and ectomorphy were calculated as well as the mean values of particular features and their supplemental values and regression equations...
January 12, 2018: Anthropologischer Anzeiger; Bericht über die Biologisch-anthropologische Literatur
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