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Evolution medicine

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https://www.readbyqxmd.com/read/28341884/mitochondrial-genome-of-the-nematode-endoparasitic-fungus-hirsutella-vermicola-reveals-a-high-level-of-synteny-in-the-family-ophiocordycipitaceae
#1
Yong-Jie Zhang, Hong-Yue Zhang, Xing-Zhong Liu, Shu Zhang
Ophiocordycipitaceae is a diverse fungal family comprising multiple ecologically, economically, medicinally, and culturally important fungal species; however, only four species of the family have available mitochondrial genomes (mitogenomes). In this study, the complete mitogenome of the nematode endoparasitic fungus Hirsutella vermicola in Ophiocordycipitaceae was sequenced, and a comparative mitogenomic analysis of Ophiocordycipitaceae was performed. We found that the 53,793-bp circular mitogenome of H. vermicola, except for standard fungal mitochondrial genes, harbors seven introns acquired possibly through lateral transfer from other fungi and three free-standing open reading frames (ORFs) coding for hypothetical proteins...
March 24, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28335236/complex-morphology-metal-based-nanostructures-fabrication-characterization-and-applications
#2
REVIEW
Antonella Gentile, Francesco Ruffino, Maria Grazia Grimaldi
Due to their peculiar qualities, metal-based nanostructures have been extensively used in applications such as catalysis, electronics, photography, and information storage, among others. New applications for metals in areas such as photonics, sensing, imaging, and medicine are also being developed. Significantly, most of these applications require the use of metals in the form of nanostructures with specific controlled properties. The properties of nanoscale metals are determined by a set of physical parameters that include size, shape, composition, and structure...
June 6, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28333378/muscle-and-limb-mechanics
#3
George A Tsianos, Gerald E Loeb
Understanding of the musculoskeletal system has evolved from the collection of individual phenomena in highly selected experimental preparations under highly controlled and often unphysiological conditions. At the systems level, it is now possible to construct complete and reasonably accurate models of the kinetics and energetics of realistic muscles and to combine them to understand the dynamics of complete musculoskeletal systems performing natural behaviors. At the reductionist level, it is possible to relate most of the individual phenomena to the anatomical structures and biochemical processes that account for them...
March 16, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28332881/an-individualized-approach-to-the-evaluation-and-management-of-primary-aldosteronism
#4
Anand Vaidya, Carl D Malchoff, Richard J Auchus
OBJECTIVE: With the increased emphasis on personalized and individualized medicine, the American Association of Clinical Endocrinologists Adrenal Scientific Committee has developed a series of articles to update members on personalized medicine as it applies to adrenal diseases. METHODS: Synthesis of literature review, guidelines from professional societies, and personal experience. RESULTS: Since Conn described primary aldosteronism (PA) over 60 years ago, debate has raged about the prevalence of PA in the hypertensive population, the wisdom of broadly screening for PA, and prudent approach to the evaluation and management of these patients...
March 23, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28332502/consensus-molecular-subtypes-and-the-evolution-of-precision-medicine-in-colorectal-cancer
#5
Rodrigo Dienstmann, Louis Vermeulen, Justin Guinney, Scott Kopetz, Sabine Tejpar, Josep Tabernero
No abstract text is available yet for this article.
March 23, 2017: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/28323658/changing-face-of-metastatic-prostate-cancer-the-law-of-diminishing-returns-holds-true
#6
Ulka N Vaishampayan
PURPOSE OF REVIEW: Prostate cancer presents with a multitude of faces. It ranges from localized cancers staying quiescent for many years during active surveillance to the raging diffuse liver metastases causing terminal disease. The incidence of metastatic disease is increasing. This review will highlight some of the recent developments as well as ongoing challenges of managing advanced prostate cancer. RECENT FINDINGS: Significant strides are being made in managing metastatic prostate cancer...
March 18, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/28317677/trends-in-cataract-surgery-training-curricula
#7
Mona Lotfipour, Ramunas Rolius, Erik B Lehman, Seth M Pantanelli, Ingrid U Scott
PURPOSE: To evaluate trends in cataract surgery training curricula and factors affecting timing of resident participation as a primary surgeon. SETTING: Pennsylvania State College of Medicine, Hershey, Pennsylvania, USA. DESIGN: Cross-sectional study of anonymous survey results. METHODS: A description of the study and link to an online survey was e-mailed to program directors of each ophthalmology residency training program accredited by the Accreditation Council for Graduate Medical Education (ACGME)...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28317474/young-general-practitioners-professional-activities-a-survey-in-the-french-speaking-part-of-belgium
#8
Anne-Laure Lenoir, Lou Richelle, Frédéric Ketterer, Bénédicte Fraipont, Marion Cayn, Christiane Duchesnes, Sophie Leconte
INTRODUCTION: This study described the professional activities of graduates of the Advanced Master of General Practice of the Belgian French-speaking universities from 1999 to 2013 and identified factors influencing their situation. METHODS: Between November 2014 and June 2015, all graduates were asked to complete a questionnaire concerning their professional activities. The first part of the analysis described the respondent's socio-demographic and professional characteristics...
March 20, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/28315070/mechanisms-of-resistance-in-multiple-myeloma
#9
Athanasios Papadas, Fotis Asimakopoulos
Multiple myeloma (MM) is an incurable hematopoietic cancer that is characterized by malignant plasma cell infiltration of the bone marrow and/or extramedullary sites. Multi-modality approaches including "novel agents," traditional chemotherapy, and/or stem cell transplantation are used in MM therapy. Drug resistance, however, ultimately develops and the disease remains incurable for the vast majority of patients. In this chapter, we review both tumor cell-autonomous and non-autonomous (microenvironment-dependent) mechanisms of drug resistance...
March 18, 2017: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/28303491/changing-the-therapeutic-landscape-in-non-small-cell-lung-cancers-the-evolution-of-comprehensive-molecular-profiling-improves-access-to-therapy
#10
REVIEW
Joshua K Sabari, Fernando Santini, Isabella Bergagnini, W Victoria Lai, Kathryn C Arbour, Alexander Drilon
Targeting genomic alterations has led to a paradigm shift in the treatment of patients with lung cancer. In an effort to better identify potentially actionable alterations that may predict response to FDA-approved and or investigational therapies, many centers have migrated towards performing targeted exome sequencing in patients with stage IV disease. The implementation of next-generation sequencing (NGS) in the evaluation of tumor tissue from patients with NSCLC has led to the discovery of targetable alterations in tumors that previously had no known actionable targets by less comprehensive profiling...
April 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28297566/instructive-role-of-the-microenvironment-in-preventing-renal-fibrosis
#11
Kei Matsumoto, Sandhya Xavier, Jun Chen, Yujiro Kida, Mark Lipphardt, Reina Ikeda, Annie Gevertz, Mario Caviris, Antonis K Hatzopoulos, Ivo Kalajzic, James Dutton, Brian B Ratliff, Hong Zhao, Zbygniew Darzynkiewicz, Stefan Rose-John, Michael S Goligorsky
Accumulation of myofibroblasts is a hallmark of renal fibrosis. A significant proportion of myofibroblasts has been reported to originate via endothelial-mesenchymal transition. We initially hypothesized that exposing myofibroblasts to the extract of endothelial progenitor cells (EPCs) could reverse this transition. Indeed, in vitro treatment of transforming growth factor-β1 (TGF-β1)-activated fibroblasts with EPC extract prevented expression of α-smooth muscle actin (α-SMA); however, it did not enhance expression of endothelial markers...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28293278/a-historical-review-of-surgery-for-peritonitis-secondary-to-acute-colonic-diverticulitis-from-lockhart-mummery-to-evidence-based-medicine
#12
REVIEW
Roberto Cirocchi, Sorena Afshar, Salomone Di Saverio, Georgi Popivanov, Angelo De Sol, Francesca Gubbiotti, Gregorio Tugnoli, Massimo Sartelli, Fausto Catena, David Cavaliere, Renata Taboła, Abe Fingerhut, Gian Andrea Binda
The management of patients with colonic diverticular perforation is still evolving. Initial lavage with or without simple suture and drainage was suggested in the late 19th century, replaced progressively by the three-stage Mayo Clinic or the two-stage Mickulicz procedures. Fears of inadequate source control prompted the implementation of the resection of the affected segment of colon with formation of a colostomy (Hartman procedure) in the 1970's. Ensuing development of the treatment strategies was driven by the recognition of the high morbidity and mortality and low reversal rates associated with the Hartman procedure...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28289845/what-s-new-in-neuromyelitis-optica-a-short-review-for-the-clinical-neurologist
#13
Daniel Whittam, Martin Wilson, Shahd Hamid, Geoff Keir, Maneesh Bhojak, Anu Jacob
The evolution of neuromyelitis optica spectrum disorder (NMOSD) from a rare, incurable and misunderstood disease with almost universally poor outcomes to its present state in just over a decade is unprecedented in neurology and possibly in medicine. Our knowledge of NMOSD biology has led to the recognition of wider phenotypes, new disease mechanisms, and thus clinical trials of new and effective treatments. This article aims to update readers on the recent developments in NMOSD with particular emphasis on clinical advances, the 2015 diagnostic criteria, biomarkers, imaging, and therapeutic interventions...
March 13, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28282353/the-use-of-echocardiograms-in-preparticipation-examinations
#14
Caroline Lucas, Deanna L Kerkhof, Jacilyn E Briggs, Gianmichel D Corrado
Sudden cardiac death (SCD) is the leading cause of death during exercise in young athletes. Preparticipation physical examinations were developed to maintain the health and safety of athletes, including the prompt identification of those at risk for SCD. The use of medical history and physical examinations, electrocardiography, and echocardiography, or some combination thereof, is the source of continued debate. This article provides an overview of the etiology of SCD and reviews literature relating to preparticipation echocardiography, with a focus on its evolution, utility, and effectiveness...
March 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28282104/retrospective-analysis-of-emerging-drugs-use-in-a-quebec-women-s-and-children-s-university-hospital-and-perspectives-for-safe-and-optimal-drug-use
#15
Jennifer Corny, Elaine Pelletier, Denis Lebel, Jean-François Bussières
BACKGROUND: Only few medicines are licensed for children. The use of emerging drugs (unmarketed drug, off-label drug with poorly documented use, and/or costly drugs) might represent an essential alternative for pediatric patients. OBJECTIVES: The objective of the study was to assess emerging drug uses rate and profile in our women's and children's centre to support the implementation of an appropriate policy. METHODS: We identified retrospectively emerging drugs used between 2013-01-01 and 2014-02-28, using computerized pharmacist software extraction of drugs used...
March 10, 2017: Journal of Population Therapeutics and Clinical Pharmacology
https://www.readbyqxmd.com/read/28279189/therapeutic-strategies-of-drug-repositioning-targeting-autophagy-to-induce-cancer-cell-death-from-pathophysiology-to-treatment
#16
REVIEW
Go J Yoshida
The 2016 Nobel Prize in Physiology or Medicine was awarded to the researcher that discovered autophagy, which is an evolutionally conserved catabolic process which degrades cytoplasmic constituents and organelles in the lysosome. Autophagy plays a crucial role in both normal tissue homeostasis and tumor development and is necessary for cancer cells to adapt efficiently to an unfavorable tumor microenvironment characterized by hypo-nutrient conditions. This protein degradation process leads to amino acid recycling, which provides sufficient amino acid substrates for cellular survival and proliferation...
March 9, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28276281/in-vitro-susceptibility-and-resistance-phenotypes-in-contemporary-citrobacter-isolates-in-a-university-hospital-in-crete-greece
#17
Sofia Maraki, Konstantinos Z Vardakas, Viktoria-Eirini Mavromanolaki, Margarita Kyriakidou, George Spais, Diamantis P Kofteridis, George Samonis, Matthew E Falagas
BACKGROUND: Data on Citrobacter spp. susceptibility are scarce. We sought to study the evolution in the susceptibility of 385 Citrobacter spp. at the University Hospital of Heraklion, Crete, Greece during a six-year period (2010-2015). METHODS: Non-duplicate strains isolated from inpatients (intensive care unit, oncology, surgery, internal medicine, paediatrics) and outpatients were studied using Vitek 2. Phenotypic confirmatory tests were applied for detection of β-lactamases and aminoglycoside modifying enzymes...
March 9, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28274726/a-population-genetics-perspective-on-the-determinants-of-intra-tumor-heterogeneity
#18
Zheng Hu, Ruping Sun, Christina Curtis
Cancer results from the acquisition of somatic alterations in a microevolutionary process that typically occurs over many years, much of which is occult. Understanding the evolutionary dynamics that are operative at different stages of progression in individual tumors might inform the earlier detection, diagnosis, and treatment of cancer. Although these processes cannot be directly observed, the resultant spatiotemporal patterns of genetic variation amongst tumor cells encode their evolutionary histories. Such intra-tumor heterogeneity is pervasive not only at the genomic level, but also at the transcriptomic, phenotypic, and cellular levels...
March 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28268264/opening-plenary-speaker-human-genomics-precision-medicine-and-advancing-human-health
#19
Eric D Green
Starting with the launch of the Human Genome Project in 1990, the past quarter-century has brought spectacular achievements in genomics that dramatically empower the study of human biology and disease. The human genomics enterprise is now in the midst of an important transition, as the growing foundation of genomic knowledge is being used by researchers and clinicians to tackle increasingly complex problems in biomedicine. Of particular prominence is the use of revolutionary new DNA sequencing technologies for generating prodigious amounts of DNA sequence data to elucidate the complexities of genome structure, function, and evolution, as well as to unravel the genomic bases of rare and common diseases...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28266852/evolution-of-an-efficient-and-scalable-nine-step-longest-linear-sequence-synthesis-of-zincophorin-methyl-ester
#20
Liang-An Chen, Melissa A Ashley, James L Leighton
Because of both their synthetically challenging and stereochemically complex structures and their wide range of often clinically relevant biological activities, nonaromatic polyketide natural products have for decades attracted an enormous amount of attention from synthetic chemists and played an important role in the development of modern asymmetric synthesis. Often, such compounds are not available in quantity from natural sources, rendering analogue synthesis and drug development efforts extremely resource-intensive and time-consuming...
March 15, 2017: Journal of the American Chemical Society
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