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Molecular genetic personality

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https://www.readbyqxmd.com/read/27910030/recurrent-cytogenetic-abnormalities-in-non-hodgkin-s-lymphoma-and-chronic-lymphocytic-leukemia
#1
Edmond S K Ma
Characteristic chromosomal translocations are found to be associated with subtypes of B-cell non-Hodgkin lymphoma (NHL), for example t(8;14)(q24;q32) and Burkitt lymphoma, t(14;18)(q32;q21) and follicular lymphoma, and t(11;14)(q13;q32) in mantle cell lymphoma. Only few recurrent cytogenetic aberrations have been identified in the T-cell NHL and the best known is the ALK gene translocation t(2;5)(p23;q35) in anaplastic large cell lymphoma. Since lymph node or other tissue is seldom submitted for conventional cytogenetics study, alternative approaches for translocation detection are polymerase chain reaction (PCR) or fluorescence in situ hybridization (FISH)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27910009/cancer-cytogenetics-an-introduction
#2
Thomas S K Wan
The Philadelphia chromosome was the first chromosomal abnormality discovered in cancer using the cytogenetics technique in 1960, and was consistently associated with chronic myeloid leukemia. Over the past five decades, innovative technical advances in the field of cancer cytogenetics have greatly enhanced the detection ability of chromosomal alterations, and have facilitated the research and diagnostic potential of chromosomal studies in neoplasms. These developments notwithstanding, chromosome analysis of a single cell is still the easiest way to delineate and understand the relationship between clonal evolution and disease progression of cancer cells...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27906527/behavioral-epigenetics
#3
David S Moore
Why do we grow up to have the traits we do? Most 20th century scientists answered this question by referring only to our genes and our environments. But recent discoveries in the emerging field of behavioral epigenetics have revealed factors at the interface between genes and environments that also play crucial roles in development. These factors affect how genes work; scientists now know that what matters as much as which genes you have (and what environments you encounter) is how your genes are affected by their contexts...
December 1, 2016: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/27903293/personalized-medicine-approach-confirms-a-milder-case-of-abat-deficiency
#4
A Besse, A K Petersen, J V Hunter, V Appadurai, S R Lalani, P E Bonnen
ABAT deficiency (OMIM 613163) is a rare inborn error of metabolism caused by recessive variants in the gene 4-aminobutyric acid transaminase (ABAT), which is responsible for both the catalysis of GABA and maintenance of nucleoside pools in the mitochondria. To date, only a few patients have been reported worldwide. Their clinical presentation has been remarkably consistent with primary features of severe psychomotor retardation, encephalopathy, hypotonia, and infantile-onset refractory epilepsy. We report a new case of ABAT deficiency that marks an important departure from previous clinical findings...
December 1, 2016: Molecular Brain
https://www.readbyqxmd.com/read/27899992/beside-p53-and-pten-identification-of-molecular-alterations-of-the-ras-mapk-and-pi3k-akt-signaling-pathways-in-high-grade-serous-ovarian-carcinomas-to-determine-potential-novel-therapeutic-targets
#5
Shuhui Chen, Elisa Cavazza, Catherine Barlier, Julia Salleron, Pierre Filhine-Tresarrieu, Céline Gavoilles, Jean-Louis Merlin, Alexandre Harlé
Despite great histological and molecular heterogeneity, the clinical management of high-grade ovarian carcinomas remains unspecialized. As a major subgroup, high-grade serous ovarian carcinomas (HGSOCs) require novel therapies. In addition to utilizing conventional histological prognostic markers and performing oncogenetic investigations, the molecular diagnostic method of next generation sequencing (NGS) was performed to identify 'druggable' targets that could provide access to innovative therapy. The present study was performed in 45 HGSOC patients (mean age, 59...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27899773/-a-novel-treatment-strategy-for-pancreatic-cancer-based-on-gene-profiles
#6
Hideyuki Hayashi, Hiroshi Nishihara
Pancreatic cancer has one of the highest rates of mortality among malignancies and the development of promising future therapies is strongly required. Recently, the utility of gene aberrations as biomarkers for determining therapeutic strategies has been demonstrated in several types of cancer. The detection of druggable mutations that aid in the selection of effective molecular targeting drugs is feasible in clinical settings for certain cancers. On the other hand, personalized therapy for pancreatic cancer guided by genomic biomarkers has not yet been realized and suitable molecular targets for the disease have been unclear until now...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/27899308/insight-gained-from-genome-wide-interaction-and-enrichment-analysis-on-weight-gain-during-citalopram-treatment
#7
Henrik Thyge Corfitsen, Antonio Drago
Weight gain is a possible side effect of the pharmacological antidepressant treatments. Defining antidepressant prescriptions based on personal genetic makeups would decrease the risk of weight gain and increase the quality of the current antidepressant pharmacological treatments. 643 depressed, citalopram treated individuals with available clinical and genome-wide genetic information were investigated to identify the molecular pathways associated with weight gain. 111 individuals experienced weight gain during citalopram treatment...
November 26, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27899184/genetic-predisposition-to-colorectal-cancer-implications-for-treatment-and-prevention
#8
REVIEW
Elena M Stoffel, Matthew B Yurgelun
Colorectal cancer (CRC) is the third most common cancer diagnosed in men and women and approximately 5% of cases are associated with identifiable germline mutations associated with hereditary cancer syndromes. Lifetime risks for CRC can approach 50%-80% for mutation carriers in the absence of endoscopic and/or surgical intervention, and early identification of at-risk individuals can guide clinical interventions for cancer prevention and treatment. Personal and family history and molecular phenotype of CRC tumors are used in determining which patients should be referred for clinical genetic evaluation...
October 2016: Seminars in Oncology
https://www.readbyqxmd.com/read/27893664/genetic-aspects-of-pituitary-carcinoma-a-systematic-review
#9
Zijiang Yang, Ting Zhang, Heng Gao
BACKGROUND: Pituitary carcinoma (PC) is a rare type of malignant intracranial neoplasm defined as distant metastasis of pituitary adenoma (PA). Although PC incidence is low because only 0.1% to 0.2% of PAs ultimately develop into PCs, the prognosis is poor and 66% of patients die within the first year. Existing therapeutic measures, including surgical removal, chemotherapy, and radiotherapy, have limited effectiveness. The lack of efficacy of current treatments is largely caused by the limited understanding of the molecular pathogenesis of PA and the malignant transformation to PC...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27883322/molecular-biology-and-genetic-mechanisms-in-the-progression-of-the-malignant-skin-melanoma
#10
Sofija Pejkova, Gjorgje Dzokic, Smilja Tudzarova-Gjorgova, Sasho Panov
Malignant skin melanoma is a tumor deriving from transformed skin melanocytes as a result of complex interactions between genetic and environmental factors. This melanoma has a potential to metastasize early and very often it is resistant to the existing modalities of the systemic therapy. As in any other neoplasms, certain types of melanoma may skip certain stages of progression. The progression from one stage to another is accompanied by specific biological changes. Several key changes in the melanoma tumorogenesis influence the regulation of the cell proliferation and vitality, including the RAS-RAF-ERK, PI3K-AKT, and p16INK4/CDK4/RB pathways...
November 1, 2016: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/27877219/an-overview-of-genetic-changes-and-risk-of-pancreatic-ductal-adenocarcinoma
#11
REVIEW
Agnieszka K Sarnecka, Malgorzata Zagozda, Marek Durlik
The pancreatic carcinoma is a leading cause of death in cancer carriers worldwide. The early diagnostic is difficult due to late stage during diagnosis, lack of characteristic symptoms and also multifactor basis. In cancer development take part both, environmental and genetic factors, alone or in conjunction with each other. The nonspecific biomarkers of cancers are a reason for the search for more accurate factors which allow for fast and personalized diagnostics. Some of cancers have identified molecular (metabolic, biochemical or genetic) markers but in most cases the only clue is patient`s interview and abnormal levels of organ functions markers...
2016: Journal of Cancer
https://www.readbyqxmd.com/read/27871876/disaggregating-asthma-big-investigation-vs-big-data
#12
Danielle Belgrave, John Henderson, Angela Simpson, Iain Buchan, Christopher Bishop, Adnan Custovic
We are facing a major challenge in bridging the gap between identifying subtypes of asthma, to understanding causal mechanisms, and translating this knowledge into personalized prevention and management strategies. In recent years, "big data" has been sold as a panacea for generating hypotheses and driving new frontiers of healthcare; the idea that the data must and will speak for themselves is fast becoming a new dogma. One of the dangers of ready accessibility of healthcare data and computational tools for data analysis is that the process of data mining may become uncoupled from the scientific process of clinical interpretation, understanding the provenance of the data and external validation...
November 18, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27864402/molecular-genetic-contributions-to-self-rated-health
#13
Sarah E Harris, Saskia P Hagenaars, Gail Davies, W David Hill, David C M Liewald, Stuart J Ritchie, Riccardo E Marioni, Cathie L M Sudlow, Joanna M Wardlaw, Andrew M McIntosh, Catharine R Gale, Ian J Deary
BACKGROUND: Poorer self-rated health (SRH) predicts worse health outcomes, even when adjusted for objective measures of disease at time of rating. Twin studies indicate SRH has a heritability of up to 60% and that its genetic architecture may overlap with that of personality and cognition. METHODS: We carried out a genome-wide association study (GWAS) of SRH on 111 749 members of the UK Biobank sample. Univariate genome-wide complex trait analysis (GCTA)-GREML analyses were used to estimate the proportion of variance explained by all common autosomal single nucleotide polymorphisms (SNPs) for SRH...
November 17, 2016: International Journal of Epidemiology
https://www.readbyqxmd.com/read/27863505/a-genomic-case-study-of-desmoplastic-small-round-cell-tumor-comprehensive-analysis-reveals-insights-into-potential-therapeutic-targets-and-development-of-a-monitoring-tool-for-a-rare-and-aggressive-disease
#14
Elisa Napolitano Ferreira, Bruna Durães Figueiredo Barros, Jorge Estefano de Souza, Renan Valieris Almeida, Giovana Tardin Torrezan, Sheila Garcia, Ana Cristina Victorino Krepischi, Celso Abdon Lopes de Mello, Isabela Werneck da Cunha, Clóvis Antonio Lopes Pinto, Fernando Augusto Soares, Emmanuel Dias-Neto, Ademar Lopes, Sandro José de Souza, Dirce Maria Carraro
BACKGROUND: Genome-wide profiling of rare tumors is crucial for improvement of diagnosis, treatment, and, consequently, achieving better outcomes. Desmoplastic small round cell tumor (DSRCT) is a rare type of sarcoma arising from mesenchymal cells of abdominal peritoneum that usually develops in male adolescents and young adults. A specific translocation, t(11;22)(p13;q12), resulting in EWS and WT1 gene fusion is the only recurrent molecular hallmark and no other genetic factor has been associated to this aggressive tumor...
November 18, 2016: Human Genomics
https://www.readbyqxmd.com/read/27862491/alarmins-and-central-nervous-system-inflammation-in-hiv-associated-neurological-disorders
#15
M-L Gougeon
In the era of highly active antiretroviral therapy (HAART), HIV-1-associated neurocognitive disorders (HAND) persist in infected individuals with adequate immunological and virological status. Risk factors for cognitive impairment include hepatitis C virus co-infection, host genetic factors predisposing to HAND, the early establishment of the virus in the CNS and its persistence under HAART; thus, the CNS is an important reservoir for HIV. Microglial cells are permissive to HIV-1, and NLRP3 inflammasome-associated genes were found expressed in brains of HIV-1-infected persons, contributing to brain disease...
November 16, 2016: Journal of Internal Medicine
https://www.readbyqxmd.com/read/27858405/advances-in-molecular-preclinical-therapy-mediated-by-imaging
#16
Adelaide Greco, Sandra Albanese, Luigi Auletta, Flavia De Carlo, Marco Salvatore, Candace M Howard, Pier P Claudio
Several advances have been made toward understanding the biology of cancer and most of them are due to robust genetic studies that led to the scientific recognition that although many patients have the same type of cancer their tumors may have harbored different molecular alterations. Personalized therapy and the development of advanced techniques of preclinical imaging and new murine models of disease are emerging concepts that are allowing mapping of disease markers in vivo and in some cases also receptor targeted therapy...
November 18, 2016: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27852435/sprtn-is-a-mammalian-dna-binding-metalloprotease-that-resolves-dna-protein-crosslinks
#17
Jaime Lopez-Mosqueda, Karthik Maddi, Stefan Prgomet, Sissy Kalayil, Ivana Marinovic-Terzic, Janos Terzic, Ivan Dikic
Ruijs-Aalfs syndrome is a segmental progeroid syndrome resulting from mutations in the SPRTN gene. Cells derived from patients with SPRTN mutations elicit genomic instability and people afflicted with this syndrome developed hepatocellular carcinoma. Here we describe the molecular mechanism by which SPRTN contributes to genome stability and normal cellular homeostasis. We show that SPRTN is a DNA-dependent mammalian protease required for resolving cytotoxic DNA-protein crosslinks (DPCs)- a function that had only been attributed to the metalloprotease Wss1 in budding yeast...
November 17, 2016: ELife
https://www.readbyqxmd.com/read/27848075/recorded-interviews-with-human-and-medical-geneticists
#18
Peter S Harper
A series of 100 recorded interviews with human and medical geneticists has been carried out and some general results are reported here. Twenty countries across the world are represented, mostly European, with a particular emphasis on the United Kingdom. A priority was given to older workers, many of whom were key founders of human genetics in their own countries and areas of work, and over 20 of whom are now no longer living. The interviews also give valuable information on the previous generation of workers, as teachers and mentors of the interviewees, thus extending the coverage of human genetics back to the 1930s or even earlier...
November 15, 2016: Human Genetics
https://www.readbyqxmd.com/read/27846720/-molecular-mechanisms-of-carcinogenesis-of-epithelial-ovarian-cancers
#19
Z Müllerová, T Müller, K Křivánková, B Vojtěšek, P Müller
BACKGROUND: Epithelial ovarian carcinomas are one of the most common causes of death among gynecologic malignancies in the Czech population. This group of tumors is characterized by considerable heterogeneity in terms of its pathogenesis and response to therapy. It is questionable whether advances in the elucidation of molecular pathogenesis of various types of epithelial ovarian carcinomas can contribute to application of personalized targeted therapy. AIMS: This work aims to summarize current knowledge on carcinogenesis and molecular basis of epithelial ovarian cancers and point out their potential applications in clinical practice...
2016: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/27833072/a-multi-step-classifier-addressing-cohort-heterogeneity-improves-performance-of-prognostic-biomarkers-in-three-cancer-types
#20
Ellis Patrick, Sarah-Jane Schramm, John T Ormerod, Richard A Scolyer, Graham J Mann, Samuel Mueller, Jean Y H Yang
Cancer research continues to highlight the extensive genetic diversity that exists both between and within tumors. This intrinsic heterogeneity poses one of the central challenges to predicting patient clinical outcome and the personalization of treatments. Despite progress in some individual tumor types, it is not yet possible to prospectively, accurately classify patients by expected survival. One hypothesis proposed to explain this is that the prognostic classifiers developed to date are insufficiently sensitive and specific; however it is also possible that patients are not equally easy to classify by any given biomarker...
November 8, 2016: Oncotarget
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