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https://www.readbyqxmd.com/read/28441061/precisely-where-are-we-going-charting-the-new-terrain-of-precision-prevention
#1
Karen M Meagher, Michelle L McGowan, Richard A Settersten, Jennifer R Fishman, Eric T Juengst
In addition to genetic data, precision medicine research gathers information about three factors that modulate gene expression: lifestyles, environments, and communities. The relevant research tools-epidemiology, environmental assessment, and socioeconomic analysis-are those of public health sciences rather than molecular biology. Because these methods are designed to support inferences and interventions addressing population health, the aspirations of this research are expanding from individualized treatment toward precision prevention in public health...
April 24, 2017: Annual Review of Genomics and Human Genetics
https://www.readbyqxmd.com/read/28440597/external-quality-assessment-for-laboratory-testing-of-hla-b-15-02-allele-in-relation-to-carbamazepine-therapy
#2
Guigao Lin, Kuo Zhang, Yanxi Han, Jiehong Xie, Jinming Li
BACKGROUND: Due to the significant risk of developing Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), the use of carbamazepine is not recommended in patients carrying the human leukocyte antigen B (HLA-B) *15:02 allele. In an effort to guarantee reliable community-based HLA-B*15:02 testing throughout China, a HLA-B*15:02 genotyping external quality assessment (EQA) program was set up. METHODS: In 2016, 10 genomic DNA samples with known HLA-B*15:02 allele status were sent to 37 laboratories from 16 provinces with a request for routine HLA-B*15:02 screening...
April 25, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28440278/an-insider-s-perspective-bacteroides-as-a-window-into-the-microbiome
#3
REVIEW
Aaron G Wexler, Andrew L Goodman
Over the last decade, our appreciation for the contribution of resident gut microorganisms-the gut microbiota-to human health has surged. However, progress is limited by the sheer diversity and complexity of these microbial communities. Compounding the challenge, the majority of our commensal microorganisms are not close relatives of Escherichia coli or other model organisms and have eluded culturing and manipulation in the laboratory. In this Review, we discuss how over a century of study of the readily cultured, genetically tractable human gut Bacteroides has revealed important insights into the biochemistry, genomics and ecology that make a gut bacterium a gut bacterium...
April 25, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/28440027/the-crispr-cas9-system-their-delivery-in-vivo-and-ex-vivo-applications-and-clinical-development-by-startups
#4
REVIEW
Minjung Song
The CRISPR/Cas9 gene editing system was originally derived from the prokaryotic adaptive immune system mediated by Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and CRISPR-associated proteins (Cas). The system has been successfully applied to genome editing in eukaryotes and has contributed to remarkable advances in the life sciences, in areas ranging from agriculture to genetic disease therapies. For efficient editing and extending the influence of this system, proper delivery of its components is crucial...
April 25, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28439991/melatonin-a-pleiotropic-molecule-that-modulates-dna-damage-response-and-repair-pathways
#5
REVIEW
Maryam Majidinia, Alireza Sadeghpour, Saeed Mehrzadi, Russel J Reiter, Nasrin Khatami, Bahman Yousefi
DNA repair is responsible for maintaining the integrity of the genome. Perturbations in the DNA repair pathways have been identified in several human cancers. Thus, compounds targeting DNA damage response (DDR) hold great promise in cancer therapy. A great deal of effort, in pursuit of new anticancer drugs, has been devoted to understanding the basic mechanisms and functions of the cellular DNA repair machinery. Melatonin, a widely-produced indoleamine in all organisms is associated with a reduced risk of cancer and has multiple regulatory roles on the different aspects of the DDR and DNA repair...
April 25, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28439696/back-to-the-future-part-1-the-medico-legal-autopsy-from-ancient-civilization-to-the-post-genomic-era
#6
REVIEW
Giovanni Cecchetto, Thomas Bajanowski, Rossana Cecchi, Donata Favretto, Silke Grabherr, Takaki Ishikawa, Toshikazu Kondo, Massimo Montisci, Heidi Pfeiffer, Maurizio Rippa Bonati, Dina Shokry, Marielle Vennemann, Santo Davide Ferrara
Part 1 of the review "Back to the Future" examines the historical evolution of the medico-legal autopsy and microscopy techniques, from Ancient Civilization to the Post-Genomic Era. In the section focusing on "The Past", the study of historical sources concerning the origins and development of the medico-legal autopsy, from the Bronze Age until the Middle Ages, shows how, as early as 2000 BC, the performance of autopsies for medico-legal purposes was a known and widespread practice in some ancient civilizations in Egypt, the Far East and later in Europe...
April 24, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28439615/wip1-phosphatase-as-pharmacological-target-in-cancer-therapy
#7
REVIEW
Soňa Pecháčková, Kamila Burdová, Libor Macurek
DNA damage response (DDR) pathway protects cells from genome instability and prevents cancer development. Tumor suppressor p53 is a key molecule that interconnects DDR, cell cycle checkpoints, and cell fate decisions in the presence of genotoxic stress. Inactivating mutations in TP53 and other genes implicated in DDR potentiate cancer development and also influence the sensitivity of cancer cells to treatment. Protein phosphatase 2C delta (referred to as WIP1) is a negative regulator of DDR and has been proposed as potential pharmaceutical target...
April 24, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28439515/endogenous-retroviruses-with-us-and-against-us
#8
REVIEW
Thomas J Meyer, Jimi L Rosenkrantz, Lucia Carbone, Shawn L Chavez
Mammalian genomes are scattered with thousands of copies of endogenous retroviruses (ERVs), mobile genetic elements that are relics of ancient retroviral infections. After inserting copies into the germ line of a host, most ERVs accumulate mutations that prevent the normal assembly of infectious viral particles, becoming trapped in host genomes and unable to leave to infect other cells. While most copies of ERVs are inactive, some are transcribed and encode the proteins needed to generate new insertions at novel loci...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/28439266/a-novel-regulator-of-activation-induced-cytidine-deaminase-apobecs-in-immunity-and-cancer-schr%C3%A3-dinger-s-catalytic-pocket
#9
REVIEW
Justin J King, Mani Larijani
Activation-induced cytidine deaminase (AID) and its relative APOBEC3 cytidine deaminases boost immune response by mutating immune or viral genes. Because of their genome-mutating activities, AID/APOBECs are also drivers of tumorigenesis. Due to highly charged surfaces, extensive non-specific protein-protein/nucleic acid interactions, formation of polydisperse oligomers, and general insolubility, structure elucidation of these proteins by X-ray crystallography and NMR has been challenging. Hence, almost all available AID/APOBEC structures are of mutated and/or truncated versions...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28439260/intriguing-interaction-of-bacteriophage-host-association-an-understanding-in-the-era-of-omics
#10
REVIEW
Krupa M Parmar, Saurabh L Gaikwad, Prashant K Dhakephalkar, Ramesh Kothari, Ravindra Pal Singh
Innovations in next-generation sequencing technology have introduced new avenues in microbial studies through "omics" approaches. This technology has considerably augmented the knowledge of the microbial world without isolation prior to their identification. With an enormous volume of bacterial "omics" data, considerable attempts have been recently invested to improve an insight into virosphere. The interplay between bacteriophages and their host has created a significant influence on the biogeochemical cycles, microbial diversity, and bacterial population regulation...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28438689/non-coding-rna-in-hepatocellular-carcinoma-mechanisms-biomarkers-and-therapeutic-targets
#11
REVIEW
Marcel Klingenberg, Akiko Matsuda, Sven Diederichs, Tushar Patel
The majority of the human genome is not translated into proteins but can be transcribed into RNA. Even though the resulting non-coding RNAs (ncRNAs) do not encode for proteins, they contribute to diseases such as cancer. Here, we review examples of the functions of ncRNAs in liver cancer and their potential use for the detection of liver cancer as well as for the treatment of liver cancer.
April 21, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28438662/never-let-it-go-stopping-key-mechanisms-underlying-metastasis-to-fight-pancreatic-cancer
#12
REVIEW
E Giovannetti, C L van der Borden, A E Frampton, A Ali, O Firuzi, G J Peters
Pancreatic ductal adenocarcinoma (PDAC) is an extremely aggressive neoplasm, predicted to become the second leading cause of cancer-related deaths before 2030. This dismal trend is mainly due to lack of effective treatments against its metastatic behavior. Therefore, a better understanding of the key mechanisms underlying metastasis should provide new opportunities for therapeutic purposes. Genomic analyses revealed that aberrations that fuel PDAC tumorigenesis and progression, such as SMAD4 loss, are also implicated in metastasis...
April 21, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28438353/the-role-of-vitamin-d-in-the-immune-system-as-a-pro-survival-molecule
#13
REVIEW
Salvatore Chirumbolo, Geir Bjørklund, Andrea Sboarina, Antonio Vella
PURPOSE: Vitamin D is a fascinating and attractive molecule that has gained particular attention in medicine in recent years. Its immunomodulatory and anti-inflammatory potential might resemble the activity of many nature-derived molecules (eg, flavonoids), but its role in biology was selected during a long evolutionary pathway to dampen the damaging effect of cell stress response and of the immune reaction. In this sense, this molecule can be considered an ancient hormone that serves, in its primary role, as a pro-survival agent...
April 21, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28437752/dna-repair-and-damage-pathways-in-breast-cancer-development-and-therapy
#14
REVIEW
Maryam Majidinia, Bahman Yousefi
DNA damage/repair constitutes several key pathways working in concert to eliminate DNA lesions and maintain genome stability and integrity. Defective components in DNA damage and repair machinery are an underlying cause for the development and progression of different types of cancers, and breast cancer is no exception. In this paper, we will briefly explain the importance of DNA damage and repair, introduce the current classification schemes for breast cancer, and review the known defects in the repair machinery that have been associated with the risk of breast cancer...
April 21, 2017: DNA Repair
https://www.readbyqxmd.com/read/28436755/modes-of-action-for-mucosal-vaccine-adjuvants
#15
Taiki Aoshi
Vaccine adjuvants induce innate immune responses and the addition of adjuvants to the vaccine helps to induce protective immunity in the host. Vaccines utilizing live attenuated or killed whole pathogens usually contain endogenous adjuvants, such as bacterial cell wall products and their genomic nucleic acids, which act as pathogen-associated molecular patterns and are sufficient to induce adaptive immune responses. However, purified protein- or antigen-based vaccines, including component or recombinant vaccines, usually lose these endogenous innate immune stimulators, so the addition of an exogenous adjuvant is essential for the success of these vaccine types...
April 24, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28434904/deep-sequencing-approaches-for-the-analysis-of-prokaryotic-transcriptional-boundaries-and-dynamics
#16
REVIEW
Katherine James, Simon J Cockell, Nikolay Zenkin
The identification of the protein-coding regions of a genome is straightforward due to the universality of start and stop codons. However, the boundaries of the transcribed regions, conditional operon structures, non-coding RNAs and the dynamics of transcription, such as pausing of elongation, are non-trivial to identify, even in the comparatively simple genomes of prokaryotes. Traditional methods for the study of these areas, such as tiling arrays, are noisy, labour-intensive and lack the resolution required for densely-packed bacterial genomes...
April 20, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28434033/the-gut-microbiome-as-a-target-for-prevention-and-treatment-of-hyperglycaemia-in-type-2-diabetes-from-current-human-evidence-to-future-possibilities
#17
REVIEW
Louise Brunkwall, Marju Orho-Melander
The totality of microbial genomes in the gut exceeds the size of the human genome, having around 500-fold more genes that importantly complement our coding potential. Microbial genes are essential for key metabolic processes, such as the breakdown of indigestible dietary fibres to short-chain fatty acids, biosynthesis of amino acids and vitamins, and production of neurotransmitters and hormones. During the last decade, evidence has accumulated to support a role for gut microbiota (analysed from faecal samples) in glycaemic control and type 2 diabetes...
April 22, 2017: Diabetologia
https://www.readbyqxmd.com/read/28434019/recent-developments-in-olive-olea-europaea-l-genetics-and-genomics-applications-in-taxonomy-varietal-identification-traceability-and-breeding
#18
REVIEW
L Sebastiani, M Busconi
The latest results in DNA markers application and genomic studies in olive. Olive (Olea europaea L.) is among the most ancient tree crops worldwide and the source of oil beneficial for human health. Despite this, few data on olive genetics are available in comparison with other cultivated plant species. Molecular information is mainly linked to molecular markers and their application to the study of DNA variation in the Olea europaea complex. In terms of genomic research, efforts have been made in sequencing, heralding the era of olive genomic...
April 22, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28432831/oncopeltus-fasciatus-as-an-evo-devo-research-organism
#19
REVIEW
Ariel D Chipman
The large milkweed bug Oncopeltus fasciatus was one of the main study insects for a range of biological questions throughout much of the 20(th) century. Its importance waned with the introduction of Drosophila melanogaster as a genetic model organism. The evo-devo revolution of the turn of the century re-introduced Oncopeltus into the scientific community, and it has proved increasingly useful, mostly within a comparative context for evolution driven research. The last few years have seen a number of significant contributions to our understanding of the evolution of developmental processes in insects, and in arthropods in general, arise from work on Oncopeltus...
April 22, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28432816/rhodnius-prolixus-from-classical-physiology-to-modern-developmental-biology
#20
REVIEW
Rodrigo Nunes-da-Fonseca, Mateus Berni, Vitória Tobias-Dos-Santos, Attilio Pane, Helena Marcolla Araujo
The hemiptera Rhodnius prolixus is a blood-feeding insect and a primary vector of Trypanosoma cruzi, the etiological agent of the Chagas disease. Over the past century, Rhodnius has been the subject of intense investigations, which have contributed to unveil important aspects of metabolism and physiology in insects. Recent technological innovations are helping dissect the genetic and molecular underpinnings of Rhodnius embryogenesis and organogenesis, thus fostering the use of this important species in the fields of developmental and evolutionary biology...
April 22, 2017: Genesis: the Journal of Genetics and Development
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