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Molecular biology

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https://www.readbyqxmd.com/read/28231576/molecular-markers-involved-in-tumorigenesis-of-thyroid-carcinoma-focus-on-aggressive-histotypes
#1
Gustavo C Penna, Fernanda Vaisman, Mario Vaisman, Manuel Sobrinho-Simões, Paula Soares
Thyroid cancer derived from follicular cells (TCDFC) comprises well-differentiated (papillary and follicular) carcinoma, poorly differentiated carcinoma, and anaplastic carcinoma. Papillary thyroid carcinoma is the most common endocrine cancer, and its incidence is steadily increasing. Lethality and aggressiveness of TCDFC is inversely correlated with differentiation degree. In this review, an emphasis has been put on molecular markers involved in tumorigenesis of thyroid carcinoma with a focus on aggressive histotypes and the role of such biomarkers in predicting thyroid cancer outcome...
February 24, 2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28231574/biomarkers-in-allergic-airway-disease-simply-complex
#2
Adam M Chaker, Ulrich M Zissler, Martin Wagenmann, Carsten Schmidt-Weber
Clinical diagnoses of allergic airway disease need confirmation of a relevant sensitization to allergens. Serum-based component-resolved diagnosis has become increasingly popular and allows the precise assessment of specific IgE to molecular allergens. Molecular allergen diagnosis has improved our understanding of disease phenotypes in allergic patients, including cross-reactive patterns and food allergy. Beyond sensitization profiles, characterization of the (endo-)type and severity of a local allergic disease is useful for targeted therapy with biologics in advanced allergic airway disease...
February 24, 2017: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/28231559/prostate-cancer-heterogeneity-discovering-novel-molecular-targets-for-therapy
#3
REVIEW
Chiara Ciccarese, Francesco Massari, Roberto Iacovelli, Michelangelo Fiorentino, Rodolfo Montironi, Vincenzo Di Nunno, Francesca Giunchi, Matteo Brunelli, Giampaolo Tortora
Prostate cancer (PCa) shows a broad spectrum of biological and clinical behavior, which represents the epiphenomenon of an extreme genetic heterogeneity. Recent genomic profiling studies have deeply improved the knowledge of the genomic landscape of localized and metastatic PCa. The AR and PI3K/Akt/mTOR signaling pathways are the two most frequently altered, representing therefore interestingly targets for therapy. Moreover, somatic or germline aberrations of DNA repair genes (DRGs) have been observed at high frequency, supporting the potential role of platinum derivatives and PARP inhibitors as effective therapeutic strategies...
February 11, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28231499/surfactant-cobalt-iii-complexes-the-impact-of-hydrophobicity-on-interaction-with-hsa-and-dna-insights-from-experimental-and-theoretical-approach
#4
Selvakumar Veeralakshmi, Gopal Sabapathi, Selvan Nehru, Ponnambalam Venuvanalingam, Sankaralingam Arunachalam
To develop surfactant-based metallodrugs, it is very important to know about their hydrophobicity, micelle forming capacity, their interaction with biomacromolecules such as proteins and nucleic acids, and biological activities. Here, diethylenetriamine (dien) and tetradecylamine ligand (TA) based surfactant-cobalt(III) complexes with single chain domain, [Co(dien)(TA)Cl2]ClO4 (1) and double chain domain [Co(dien)(TA)2Cl](ClO4)2 (2) were chosen to study the effect of hydrophobicity on the interaction with human serum albumin and calf thymus DNA...
February 16, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28231490/lipid-droplet-growth-regulation-of-a-dynamic-organelle
#5
REVIEW
David Barneda, Mark Christian
Intracellular lipid droplets (LDs) are remarkably dynamic and complex organelles that enact regulated storage and release of lipids to fulfil their fundamental roles in energy metabolism, membrane synthesis and provision of lipid-derived signaling molecules. Although small LDs are observed in all types of eukaryotic cells, it is adipocytes that present the widest range of sizes up to the massive unilocular droplet of a white adipocyte. Our knowledge of the proteins and associated processes that control LD dynamics is improving...
February 20, 2017: Current Opinion in Cell Biology
https://www.readbyqxmd.com/read/28231083/evaluation-of-the-availability-and-antioxidant-capacity-of-maillard-compounds-present-in-bread-crust-studies-in-caco-2-cells
#6
Silvia Pastoriza de la Cueva, Isabel Seiquer, Marta Mesías, José Ángel Rufián-Henares, Cristina Delgado-Andrade
Bread crust is one of the major contributors to the intake of Maillard reaction products (MRP). MRP improve the organoleptic properties of foods and can provide biological actions such as antioxidant properties. The transport and availability of Amadori compounds (measured as furosine) and hydroxymethylfurfural (HMF)-early and intermediary MRP-from enzymatically digested bread crust (BC) and from its soluble low-molecular weight (LMW) and high-molecular weight (HMW) fractions were investigated in the Caco-2 cell line...
January 11, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28230998/influence-of-the-anomeric-conformation-in-the-intermolecular-interactions-of-glucose
#7
Imanol Usabiaga, Jorge González, Iker León, Pedro Felipe Arnaiz, Emilio J Cocinero, Jose A Fernandez
Carbohydrates are together with amino acids, DNA bases and lipids the building blocks of living beings. They play a central role in basic functions as immunity and signaling, which are governed by non-covalent interactions between sugar units and/or with other biomolecules. To get insights on such interactions between monosaccharide units, we used a combination of mass-resolved laser spectroscopy in supersonic expansions and molecular structure calculations. The results obtained clearly demonstrate that the small stability difference between the α/β anomers of glucopyranose derivatives is reversed and amplified during molecular aggregation, making the complexes of the β-anomers significantly more stable...
February 23, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28230815/conceptual-foundations-of-systems-biology-explaining-complex-cardiac-diseases
#8
REVIEW
George E Louridas, Katerina G Lourida
Systems biology is an important concept that connects molecular biology and genomics with computing science, mathematics and engineering. An endeavor is made in this paper to associate basic conceptual ideas of systems biology with clinical medicine. Complex cardiac diseases are clinical phenotypes generated by integration of genetic, molecular and environmental factors. Basic concepts of systems biology like network construction, modular thinking, biological constraints (downward biological direction) and emergence (upward biological direction) could be applied to clinical medicine...
February 21, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28230789/fungal-ribotoxins-a-review-of-potential-biotechnological-applications
#9
REVIEW
Miriam Olombrada, Rodrigo Lázaro-Gorines, Juan C López-Rodríguez, Álvaro Martínez-Del-Pozo, Mercedes Oñaderra, Moisés Maestro-López, Javier Lacadena, José G Gavilanes, Lucía García-Ortega
Fungi establish a complex network of biological interactions with other organisms in nature. In many cases, these involve the production of toxins for survival or colonization purposes. Among these toxins, ribotoxins stand out as promising candidates for their use in biotechnological applications. They constitute a group of highly specific extracellular ribonucleases that target a universally conserved sequence of RNA in the ribosome, the sarcin-ricin loop. The detailed molecular study of this family of toxic proteins over the past decades has highlighted their potential in applied research...
February 21, 2017: Toxins
https://www.readbyqxmd.com/read/28230744/s-allylmercaptocysteine%C3%A2-attenuates%C3%A2-cisplatin-induced%C3%A2-nephrotoxicity%C3%A2-through%C3%A2-suppression%C3%A2-of%C3%A2-apoptosis-%C3%A2-oxidative%C3%A2-stress-%C3%A2-and%C3%A2-inflammation
#10
Xiaosong Zhu, Xiaoyan Jiang, Ang Li, Zhongxi Zhao, Siying Li
Cisplatin is a potent chemotherapeutic agent, but its clinical usage is limited by nephrotoxicity. S-allylmercaptocysteine (SAMC), one of the water-soluble organosulfur garlic derivatives, has antioxidant and anti-inflammatory properties and plays an important role in protecting cells from apoptosis. This study aims to examine the protective effects of SAMC on cisplatin nephrotoxicity and to explore the mechanism of its renoprotection. Rats were treated with cisplatin with or without pre-treatment with SAMC...
February 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28230618/biopharmaceuticals-reference-products-and-biosimilars-to-treat-inflammatory-diseases
#11
Ann Gils, Antonio Bertolotto, Denis Mulleman, Theodora Bejan-Angoulvant, Paul J Declerck
Biopharmaceuticals are primarily therapeutic proteins developed to perform specific functions by acting on the disease pathophysiology. Compared to low molecular chemically synthesized drugs, production of biopharmaceuticals is much more complex and routes of administration and pharmacokinetics differ. Biopharmaceuticals are blockbusters in the treatment of inflammatory diseases such as psoriasis, multiple sclerosis, rheumatic diseases, and inflammatory bowel diseases, and the introduction of these drugs has revolutionized treatment...
February 20, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28230336/the-endothelial-border-to-health-mechanistic-evidence-of-the-hyperglycemic-culprit-of-inflammatory-disease-acceleration
#12
REVIEW
Nina Waerling Hansen, Anker Jon Hansen, Anette Sams
The endothelial cell (EC) layer constitutes a barrier that controls movements of fluid, solutes and cells between blood and tissue. Further, the endothelial layer regulates vascular tone and directs local humoral and cellular inflammatory processes. The strategic position makes it an important player for maintenance of health and for development of a number of diseases. Endothelial dysfunction is known to be an important component of type 2 diabetes, but is also assumed to be involved in many other diseases, for example, rheumatoid arthritis, inflammatory bowel disease, asthma, and cardiovascular diseases...
March 2017: IUBMB Life
https://www.readbyqxmd.com/read/28230335/undergraduate-medical-academic-performance-is-improved-by-scientific-training
#13
Lili Zhang, Wei Zhang, Chong Wu, Zhongming Liu, Yunfei Cai, Xingguo Cao, Yushan He, Guoxiang Liu, Hongming Miao
The effect of scientific training on course learning in undergraduates is still controversial. In this study, we investigated the academic performance of undergraduate students with and without scientific training. The results show that scientific training improves students' test scores in general medical courses, such as biochemistry and molecular biology, cell biology, physiology, and even English. We classified scientific training into four levels. We found that literature reading could significantly improve students' test scores in general courses...
February 23, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28230314/approaches-to-enhance-the-teaching-quality-of-experimental-biochemistry-for-mbbs-students-in-tsmu-china
#14
Lijuan Yu, Shuying Yi, Jing Zhai, Zhaojin Wang
With the internationalization of medical education in China, the importance of international students' education in medical schools is also increasing. Except foreign students majoring in Chinese language, English Bachelor of Medicine, Bachelor of Surgery (MBSS) students are the largest group of international students. Based on problems in the teaching process for experimental biochemistry, we designed teaching models adapted to the background of international students and strengthened teachers' teaching ability at Taishan Medical University...
February 23, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28230154/compiler-aided-systematic-construction-of-large-scale-dna-strand-displacement-circuits-using-unpurified-components
#15
Anupama J Thubagere, Chris Thachuk, Joseph Berleant, Robert F Johnson, Diana A Ardelean, Kevin M Cherry, Lulu Qian
Biochemical circuits made of rationally designed DNA molecules are proofs of concept for embedding control within complex molecular environments. They hold promise for transforming the current technologies in chemistry, biology, medicine and material science by introducing programmable and responsive behaviour to diverse molecular systems. As the transformative power of a technology depends on its accessibility, two main challenges are an automated design process and simple experimental procedures. Here we demonstrate the use of circuit design software, combined with the use of unpurified strands and simplified experimental procedures, for creating a complex DNA strand displacement circuit that consists of 78 distinct species...
February 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28230135/molecular-biology-rna-editing-packs-a-one-two-punch
#16
William T Yewdell, Jayanta Chaudhuri
No abstract text is available yet for this article.
February 22, 2017: Nature
https://www.readbyqxmd.com/read/28230061/neurofibromatosis-type-1
#17
REVIEW
David H Gutmann, Rosalie E Ferner, Robert H Listernick, Bruce R Korf, Pamela L Wolters, Kimberly J Johnson
Neurofibromatosis type 1 is a complex autosomal dominant disorder caused by germline mutations in the NF1 tumour suppressor gene. Nearly all individuals with neurofibromatosis type 1 develop pigmentary lesions (café-au-lait macules, skinfold freckling and Lisch nodules) and dermal neurofibromas. Some individuals develop skeletal abnormalities (scoliosis, tibial pseudarthrosis and orbital dysplasia), brain tumours (optic pathway gliomas and glioblastoma), peripheral nerve tumours (spinal neurofibromas, plexiform neurofibromas and malignant peripheral nerve sheath tumours), learning disabilities, attention deficits, and social and behavioural problems, which can negatively affect quality of life...
February 23, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28229965/atmbd6-a-methyl-cpg-binding-domain-protein-maintains-gene-silencing-in-arabidopsis-by-interacting-with-rna-binding-proteins
#18
Adwaita Prasad Parida, Amrapali Sharma, Arun Kumar Sharma
DNA methylation, mediated by double-stranded RNA, is a conserved epigenetic phenomenon that protects a genome from transposons, silences unwanted genes and has a paramount function in plant or animal development. Methyl CpG binding domain proteins are members of a class of proteins that bind to methylated DNA. The Arabidopsis thaliana genome encodes 13 methyl CpG binding domain (MBD) proteins, but the molecular/biological functions of most of these proteins are still not clear. In the present study, we identified four proteins that interact with AtMBD6...
March 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/28229420/noninvasive-assessment-of-cell-fate-and-biology-in-transplanted-mesenchymal-stem-cells
#19
Federico Franchi, Martin Rodriguez-Porcel
Recently, molecular imaging has become a conditio sine qua non for cell-based regenerative medicine. Developments in molecular imaging techniques, such as reporter gene technology, have increasingly enabled the noninvasive assessment of the fate and biology of cells after cardiovascular applications. In this context, bioluminescence imaging is the most commonly used imaging modality in small animal models of preclinical studies. Here, we present a detailed protocol of a reporter gene imaging approach for monitoring the viability and biology of Mesenchymal Stem Cells transplanted in a mouse model of myocardial ischemia reperfusion injury...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28229364/molecular-subtyping-in-diffuse-large-b-cell-lymphoma-closer-to-an-approach-of-precision-therapy
#20
REVIEW
Reem Karmali, Leo I Gordon
It has become clear that there is immense biological heterogeneity in diffuse large B cell lymphoma (DLBCL). Developing technology has allowed better characterization of patient subsets at a molecular level, allowing for a link of phenotype and clinical outcomes to oncogenic mechanisms and biologic signatures. Cell of origin and double hit status are able to identify aggressive subsets, with molecular profiling allowing for a clearer understanding of biologic pathways that contribute to cellular resistance to conventional treatment in these subsets...
February 2017: Current Treatment Options in Oncology
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