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Evolutionary medicine

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https://www.readbyqxmd.com/read/29032762/a-review-of-evolutionary-and-cyclical-changes-in-the-surgical-approach-to-aortic-valve-disease
#1
Marco Piciche, Guglielmo Actis Dato, Roberto Lorusso, Francesco Musumeci
INTRODUCTION: Aortic valve surgery is no exception to the general rule that history is a cycle in many fields. This manuscript aims to assist readers in transitioning from past to present and on into the future within the field of aortic valve surgery. METHODS: The existing literature has been examined, including old and modern articles published on pubmed, old articles non visible on pubmed, old and recent books on the history of medicine, looking for similarities and repetitions in techniques and surgical approaches to the aortic valve in the past and the current times...
October 9, 2017: Reviews on Recent Clinical Trials
https://www.readbyqxmd.com/read/29030730/introduction-eric-davidson-and-the-molecular-biology-of-evolution-and-development
#2
EDITORIAL
Michel Morange, Ute Deichmann
Between November 30th and December 2nd, 2015, the Jacques Loeb Centre for the History and Philosophy of the Life Sciences at Ben-Gurion University of the Negev in Beer Sheva (Israel) held its Eighth International Workshop under the title "From Genome to Gene: Causality, Synthesis and Evolution". Eric Davidson, the founder of the concept of developmental Gene Regulatory Networks, had regularly attended the previous meetings, and his participation in this one was expected, but he suddenly passed away 3 months before...
October 13, 2017: History and Philosophy of the Life Sciences
https://www.readbyqxmd.com/read/29021568/the-brain-and-immune-system-prompt-energy-shortage-in-chronic-inflammation-and-ageing
#3
REVIEW
Rainer H Straub
Sequelae frequently seen in patients with chronic inflammatory diseases, such as fatigue, depressed mood, sleep alterations, loss of appetite, muscle wasting, cachectic obesity, bone loss and hypertension, can be the result of energy shortages caused by an overactive immune system. These sequelae can also be found in patients with chronic inflammatory diseases that are in remission and in ageing individuals, despite the immune system being less active in these situations. This Perspectives article proposes a new way of understanding situations of chronic inflammation (such as rheumatic diseases) and ageing based on the principles of evolutionary medicine, energy regulation and neuroendocrine-immune crosstalk...
October 12, 2017: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/28989794/a-marker-of-biological-age-explains-individual-variation-in-the-strength-of-the-adult-stress-response
#4
Clare Andrews, Daniel Nettle, Maria Larriva, Robert Gillespie, Sophie Reichert, Ben O Brilot, Thomas Bedford, Pat Monaghan, Karen A Spencer, Melissa Bateson
The acute stress response functions to prioritize behavioural and physiological processes that maximize survival in the face of immediate threat. There is variation between individuals in the strength of the adult stress response that is of interest in both evolutionary biology and medicine. Age is an established source of this variation-stress responsiveness diminishes with increasing age in a range of species-but unexplained variation remains. Since individuals of the same chronological age may differ markedly in their pace of biological ageing, we asked whether biological age-measured here via erythrocyte telomere length-predicts variation in stress responsiveness in adult animals of the same chronological age...
September 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28987535/blood-sweat-and-plaster-casts-reviewing-the-history-composition-and-scientific-value-of-the-raymond-a-dart-collection-of-african-life-and-death-masks
#5
T M R Houlton, B K Billings
This paper addresses the history, composition and scientific value of one of the most comprehensive facemask collections in Africa, the Raymond A. Dart Collection of African Life and Death Masks. Housed within the School of Anatomical Sciences at the University of the Witwatersrand (South Africa), it comprises 1110 masks (397 life, 487 death, 226 unknown). Life masks represent populations throughout Africa; death masks predominately southern Africa. Males preponderate by 75%. Recorded ages are error prone, but suggest most life masks are those of <35 year-olds, death masks of 36+ year-olds...
September 14, 2017: Homo: Internationale Zeitschrift Für die Vergleichende Forschung Am Menschen
https://www.readbyqxmd.com/read/28970156/leishmanicidal-activity-of-the-root-bark-of-erythrophleum-ivorense-fabaceae-and-identification-of-some-of-its-compounds-by-ultra-performance-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry-uplc-qtof-ms-ms
#6
Francis A Armah, Isaac K Amponsah, Abraham Y Mensah, Rita A Dickson, Paul A Steenkamp, Ntakadzeni E Madala, Christian K Adokoh
ETHNOPHARMACOLOGICAL RELEVANCE: Leishmaniasis is one of the neglected tropical disease caused by a protozoan of the genus Leishmania transmitted by sandflies. High cost and lack of oral formulation of existing drugs, rapid developments of resistance by the parasite coupled with serious side effects require new treatments to augment or replace currently available therapies. The major merits of herbal medicine seem to demonstrate perceived efficacy, low incidence of serious adverse effects and low cost...
September 29, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28944077/how-does-hormesis-impact-biology-toxicology-and-medicine
#7
REVIEW
Edward J Calabrese, Mark P Mattson
Hormesis refers to adaptive responses of biological systems to moderate environmental or self-imposed challenges through which the system improves its functionality and/or tolerance to more severe challenges. The past two decades have witnessed an expanding recognition of the concept of hormesis, elucidation of its evolutionary foundations, and underlying cellular and molecular mechanisms, and practical applications to improve quality of life. To better inform future basic and applied research, we organized and re-evaluated recent hormesis-related findings with the intent of incorporating new knowledge of biological mechanisms, and providing fundamental insights into the biological, biomedical and risk assessment implications of hormesis...
2017: NPJ Aging and Mechanisms of Disease
https://www.readbyqxmd.com/read/28928474/using-experimental-evolution-to-identify-druggable-targets-that-could-inhibit-the-evolution-of-antimicrobial-resistance
#8
Heer H Mehta, Amy G Prater, Yousif Shamoo
With multi-drug and pan-drug-resistant bacteria becoming increasingly common in hospitals, antibiotic resistance has threatened to return us to a pre-antibiotic era that would completely undermine modern medicine. There is an urgent need to develop new antibiotics and strategies to combat resistance that are substantially different from earlier drug discovery efforts. One such strategy that would complement current and future antibiotics would be a class of co-drugs that target the evolution of resistance and thereby extend the efficacy of specific classes of antibiotics...
September 20, 2017: Journal of Antibiotics
https://www.readbyqxmd.com/read/28924510/development-of-est-ssr-markers-for-taxillus-nigrans-loranthaceae-in-southwestern-china-using-next-generation-sequencing
#9
Ning Miao, Lei Zhang, Maoping Li, Liqiang Fan, Kangshan Mao
PREMISE OF THE STUDY: We developed transcriptome microsatellite markers (simple sequence repeats) for Taxillus nigrans (Loranthaceae) to survey the genetic diversity and population structure of this species. METHODS AND RESULTS: We used Illumina HiSeq data to reconstruct the transcriptome of T. nigrans by de novo assembly and used the transcriptome to develop a set of simple sequence repeat markers. Overall, 40 primer pairs were designed and tested; 19 of them amplified successfully and demonstrated polymorphisms...
August 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28914759/isoform-sequencing-provides-a-more-comprehensive-view-of-the-panax-ginseng-transcriptome
#10
Ick-Hyun Jo, Jinsu Lee, Chi Eun Hong, Dong Jin Lee, Wonsil Bae, Sin-Gi Park, Yong Ju Ahn, Young Chang Kim, Jang Uk Kim, Jung Woo Lee, Dong Yun Hyun, Sung-Keun Rhee, Chang Pyo Hong, Kyong Hwan Bang, Hojin Ryu
Korean ginseng (Panax ginseng C.A. Meyer) has been widely used for medicinal purposes and contains potent plant secondary metabolites, including ginsenosides. To obtain transcriptomic data that offers a more comprehensive view of functional genomics in P. ginseng, we generated genome-wide transcriptome data from four different P. ginseng tissues using PacBio isoform sequencing (Iso-Seq) technology. A total of 135,317 assembled transcripts were generated with an average length of 3.2 kb and high assembly completeness...
September 15, 2017: Genes
https://www.readbyqxmd.com/read/28912577/classifying-the-evolutionary-and-ecological-features-of-neoplasms
#11
REVIEW
Carlo C Maley, Athena Aktipis, Trevor A Graham, Andrea Sottoriva, Amy M Boddy, Michalina Janiszewska, Ariosto S Silva, Marco Gerlinger, Yinyin Yuan, Kenneth J Pienta, Karen S Anderson, Robert Gatenby, Charles Swanton, David Posada, Chung-I Wu, Joshua D Schiffman, E Shelley Hwang, Kornelia Polyak, Alexander R A Anderson, Joel S Brown, Mel Greaves, Darryl Shibata
Neoplasms change over time through a process of cell-level evolution, driven by genetic and epigenetic alterations. However, the ecology of the microenvironment of a neoplastic cell determines which changes provide adaptive benefits. There is widespread recognition of the importance of these evolutionary and ecological processes in cancer, but to date, no system has been proposed for drawing clinically relevant distinctions between how different tumours are evolving. On the basis of a consensus conference of experts in the fields of cancer evolution and cancer ecology, we propose a framework for classifying tumours that is based on four relevant components...
October 2017: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/28902130/the-chloroplast-genome-sequence-of-scutellaria-baicalensis-provides-insight-into-intraspecific-and-interspecific-chloroplast-genome-diversity-in-scutellaria
#12
Dan Jiang, Zhenyu Zhao, Teng Zhang, Wenhao Zhong, Chunsheng Liu, Qingjun Yuan, Luqi Huang
Scutellaria baicalensis Georgi (Lamiaceae) is the source of the well-known traditional Chinese medicine "HuangQin" (Radix Scutellariae). Natural sources of S. baicalensis are rapidly declining due to high market demand and overexploitation. Moreover, the commercial products of Radix Scutellariae have often been found to contain adulterants in recent years, which may give rise to issues regarding drug efficacy and safety. In this study, we developed valuable chloroplast molecular resources by comparing intraspecific and interspecific chloroplast genome...
September 13, 2017: Genes
https://www.readbyqxmd.com/read/28873956/the-estimation-of-alzheimer-s-disease-causative-genes-by-applying-an-evolutionary-approach-to-medicine
#13
Joseph Caspermeyer
No abstract text is available yet for this article.
September 1, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28869561/why-is-aged-acetylcholinesterase-so-difficult-to-reactivate
#14
REVIEW
Daniel M Quinn, Joseph Topczewski, Nilanthi Yasapala, Alexander Lodge
Organophosphorus agents are potent inhibitors of acetylcholinesterase. Inhibition involves successive chemical events. The first is phosphylation of the active site serine to produce a neutral adduct, which is a close structural analog of the acylation transition state. This adduct is unreactive toward spontaneous hydrolysis, but in many cases can be reactivated by nucleophilic medicinal agents, such as oximes. However, the initial phosphylation reaction may be followed by a dealkylation reaction of the incipient adduct...
September 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28866008/evolutionary-rescue-of-a-parasite-population-by-mutation-rate-evolution
#15
Philip B Greenspoon, Nicole Mideo
The risk of antibiotic resistance evolution in parasites is a major problem for public health. Identifying factors which promote antibiotic resistance evolution is thus a priority in evolutionary medicine. The rate at which new mutations enter the parasite population is one important predictor; however, mutation rate is not necessarily a fixed quantity, as is often assumed, but can itself evolve. Here we explore the possible impacts of mutation rate evolution on the fate of a disease circulating in a host population, which is being treated with drugs, the use of which varies over time...
October 2017: Theoretical Population Biology
https://www.readbyqxmd.com/read/28862991/confidence-intervals-for-heritability-via-haseman-elston-regression
#16
Tamar Sofer
Heritability is the proportion of phenotypic variance in a population that is attributable to individual genotypes. Heritability is considered an important measure in both evolutionary biology and in medicine, and is routinely estimated and reported in genetic epidemiology studies. In population-based genome-wide association studies (GWAS), mixed models are used to estimate variance components, from which a heritability estimate is obtained. The estimated heritability is the proportion of the model's total variance that is due to the genetic relatedness matrix (kinship measured from genotypes)...
September 26, 2017: Statistical Applications in Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28855603/complete-chloroplast-genome-sequence-of-decaisnea-insignis-genome-organization-genomic-resources-and-comparative-analysis
#17
Bin Li, Furong Lin, Ping Huang, Wenying Guo, Yongqi Zheng
Decaisnea insignis is a wild resource plant and is used as an ornamental, medicinal, and fruit plant. High-throughput sequencing of chloroplast genomes has provided insight into the overall evolutionary dynamics of chloroplast genomes and has enhanced our understanding of the evolutionary relationships within plant families. In the present study, we sequenced the complete chloroplast genome of D. insignis and used the data to assess its genomic resources. The D. insignis chloroplast genome is 158,683 bp in length and includes a pair of inverted repeats of 26,167 bp that are separated by small and large single copy regions of 19,162 bp and 87,187 bp, respectively...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28855098/the-bioelectric-code-an-ancient-computational-medium-for-dynamic-control-of-growth-and-form
#18
REVIEW
Michael Levin, Christopher J Martyniuk
What determines large-scale anatomy? DNA does not directly specify geometrical arrangements of tissues and organs, and a process of encoding and decoding for morphogenesis is required. Moreover, many species can regenerate and remodel their structure despite drastic injury. The ability to obtain the correct target morphology from a diversity of initial conditions reveals that the morphogenetic code implements a rich system of pattern-homeostatic processes. Here, we describe an important mechanism by which cellular networks implement pattern regulation and plasticity: bioelectricity...
August 27, 2017: Bio Systems
https://www.readbyqxmd.com/read/28845468/evolutionary-nephrology
#19
Robert L Chevalier
Progressive kidney disease follows nephron loss, hyperfiltration, and incomplete repair, a process described as "maladaptive." In the past 20 years, a new discipline has emerged that expands research horizons: evolutionary medicine. In contrast to physiologic (homeostatic) adaptation, evolutionary adaptation is the result of reproductive success that reflects natural selection. Evolutionary explanations for physiologically maladaptive responses can emerge from mismatch of the phenotype with environment or evolutionary tradeoffs...
May 2017: KI Reports
https://www.readbyqxmd.com/read/28839923/why-developmental-niche-construction-is-not-selective-niche-construction-and-why-it-matters
#20
Karola Stotz
In the last decade, niche construction has been heralded as the neglected process in evolution. But niche construction is just one way in which the organism's interaction with and construction of the environment can have potential evolutionary significance. The constructed environment does not just select for, it also produces new variation. Nearly 3 decades ago, and in parallel with Odling-Smee's article 'Niche-constructing phenotypes', West and King introduced the 'ontogenetic niche' to give the phenomena of exogenetic inheritance a formal name...
October 6, 2017: Interface Focus
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