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Evolutionary medicine

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https://www.readbyqxmd.com/read/28625995/novel-antibiotic-resistance-determinants-from-agricultural-soil-exposed-to-antibiotics-widely-used-in-human-medicine-and-animal-farming
#1
Calvin Ho-Fung Lau, Kalene van Engelen, Stephen Gordon, Justin Renaud, Edward Topp
Antibiotic resistance has emerged globally as one of the biggest threats to human and animal health. Although the excessive use of antibiotics is recognized for accelerating the selection for resistance, there is a growing body of evidence suggesting that natural environments are "hotspots" for the development of both ancient and contemporary resistance mechanisms. Given that pharmaceuticals can be entrained onto agricultural land through anthropogenic activities, this could be a potential driver for the emergence and dissemination of resistance in soil bacteria...
June 16, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28622978/the-evolution-and-nomenclature-of-gnrh-type-and-corazonin-type-neuropeptide-signaling-systems
#2
REVIEW
Meet Zandawala, Shi Tian, Maurice R Elphick
Gonadotropin-releasing hormone (GnRH) was first discovered in mammals on account of its effect in triggering pituitary release of gonadotropins and the importance of this discovery was recognized forty years ago in the award of the 1977 Nobel Prize for Physiology or Medicine. Investigation of the evolution of GnRH revealed that GnRH-type signaling systems occur throughout the chordates, including agnathans (e.g. lampreys) and urochordates (e.g. sea squirts). Furthermore, the discovery that adipokinetic hormone (AKH) is the ligand for a GnRH-type receptor in the arthropod Drosophila melanogaster provided evidence of the antiquity of GnRH-type signaling...
June 13, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28622932/an-evolutionary-medicine-perspective-on-neandertal-extinction
#3
Alexis P Sullivan, Marc de Manuel, Tomas Marques-Bonet, George H Perry
The Eurasian sympatry of Neandertals and anatomically modern humans - beginning at least 45,000 years ago and possibly lasting for more than 5000 years - has sparked immense anthropological interest into the factors that potentially contributed to Neandertal extinction. Among many different hypotheses, the "differential pathogen resistance" extinction model posits that Neandertals were disproportionately affected by exposure to novel infectious diseases that were transmitted during the period of spatiotemporal sympatry with modern humans...
July 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28620613/evidence-of-divergent-amino-acid-usage-in-comparative-analyses-of-r5-and-x4-associated-hiv-1-vpr-sequences
#4
Gregory C Antell, Will Dampier, Benjamas Aiamkitsumrit, Michael R Nonnemacher, Vanessa Pirrone, Wen Zhong, Katherine Kercher, Shendra Passic, Jean Williams, Yucheng Liu, Tony James, Jeffrey M Jacobson, Zsofia Szep, Brian Wigdahl, Fred C Krebs
Vpr is an HIV-1 accessory protein that plays numerous roles during viral replication, and some of which are cell type dependent. To test the hypothesis that HIV-1 tropism extends beyond the envelope into the vpr gene, studies were performed to identify the associations between coreceptor usage and Vpr variation in HIV-1-infected patients. Colinear HIV-1 Env-V3 and Vpr amino acid sequences were obtained from the LANL HIV-1 sequence database and from well-suppressed patients in the Drexel/Temple Medicine CNS AIDS Research and Eradication Study (CARES) Cohort...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28609429/reciprocal-evolution-of-opiate-science-from-medical-and-cultural-perspectives
#5
George B Stefano, Nastazja Pilonis, Radek Ptacek, Richard M Kream
Over the course of human history, it has been common to use plants for medicinal purposes, such as for providing relief from particular maladies and self-medication. Opium represents one longstanding remedy that has been used to address a range of medical conditions, alleviating discomfort often in ways that have proven pleasurable. Opium is a combination of compounds obtained from the mature fruit of opium poppy, papaver somniferum. Morphine and its biosynthetic precursors thebaine and codeine constitute the main bioactive opiate alkaloids contained in opium...
June 13, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28596996/global-variation-in-gene-expression-and-the-value-of-diverse-sampling
#6
Derek E Kelly, Matthew E B Hansen, Sarah A Tishkoff
The genomics era has accelerated our understanding of how genetic and epigenetic factors influence both normal variable traits and disease risk in humans. However, the majority of "omics" studies have focused on individuals living in urban centers, primarily from Europe and Asia, neglecting much of the genetic and environmental variation that exists across worldwide populations. Comparative studies of gene regulation in ethnically diverse populations are informing our understanding of how evolutionary forces have shaped the genetic and molecular mechanisms underlying complex traits, and studying gene expression in different environmental contexts is enabling the dissection of disease-related pathways such as immune response...
February 2017: Current opinion in systems biology
https://www.readbyqxmd.com/read/28586505/cellular-stress-response-mechanisms-as-therapeutic-targets-of-ginsenosides
#7
REVIEW
Hong-Yi Qi, Li Li, Hui Ma
Ginseng, one of the most widely used traditional herbal medicines and dietary supplements, has historically been recognized as a tonic herb and adaptogen that can enhance the body's tolerance to various adversities. Ginsenosides are a diverse group of steroidal saponins that comprise the major secondary metabolites of ginseng and are responsible for its multiple pharmacological effects. Emerging evidence suggests that hormetic phytochemicals produced by environmentally stressed plants can activate the moderate cellular stress response mechanisms at a subtoxic level in humans, which may enhance tolerance against severe dysfunction or disease...
June 6, 2017: Medicinal Research Reviews
https://www.readbyqxmd.com/read/28581503/between-region-genetic-divergence-reflects-the-mode-and-tempo-of-tumor-evolution
#8
Ruping Sun, Zheng Hu, Andrea Sottoriva, Trevor A Graham, Arbel Harpak, Zhicheng Ma, Jared M Fischer, Darryl Shibata, Christina Curtis
Given the implications of tumor dynamics for precision medicine, there is a need to systematically characterize the mode of evolution across diverse solid tumor types. In particular, methods to infer the role of natural selection within established human tumors are lacking. By simulating spatial tumor growth under different evolutionary modes and examining patterns of between-region subclonal genetic divergence from multiregion sequencing (MRS) data, we demonstrate that it is feasible to distinguish tumors driven by strong positive subclonal selection from those evolving neutrally or under weak selection, as the latter fail to dramatically alter subclonal composition...
June 5, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28533660/genes-emotions-and-gut-microbiota-the-next-frontier-for-the-gastroenterologist
#9
REVIEW
Arturo Panduro, Ingrid Rivera-Iñiguez, Maricruz Sepulveda-Villegas, Sonia Roman
Most medical specialties including the field of gastroenterology are mainly aimed at treating diseases rather than preventing them. Genomic medicine studies the health/disease process based on the interaction of the human genes with the environment. The gastrointestinal (GI) system is an ideal model to analyze the interaction between our genes, emotions and the gut microbiota. Based on the current knowledge, this mini-review aims to provide an integrated synopsis of this interaction to achieve a better understanding of the GI disorders related to bad eating habits and stress-related disease...
May 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28529232/backwards-medicine-female-atavism-whiteness-and-the-medical-profession-in-the-pineal-eye
#10
Deanna Gross Scherger
This article examines atavism as a theory of racial science in the nineteenth-century United States that illuminates how the developing medical profession reinforced racial, class, and gender hierarchies to gain cultural authority. I use John S. Partridge's "The Pineal Eye," a little-known short story published in San Francisco's The Wave in 1894, as a case study that reveals how atavism was conceived as pathology within the purview of medical study. Partridge intertwines established atavistic discourse that asserted the Anglo-Saxon female body as paradoxically modern in terms of racial identity and primitive in terms of sex with scientific experimentation and male medical authority, resulting in evolutionary regression...
2017: Literature and Medicine
https://www.readbyqxmd.com/read/28496978/erratum-evolutionary-medicine-why-do-humans-get-bunions
#11
(no author information available yet)
[This corrects the article DOI: 10.1093/emph/eox001.].
2017: Evolution, Medicine, and Public Health
https://www.readbyqxmd.com/read/28494039/top-cited-articles-in-implant-dentistry
#12
Anastasia Fardi, Konstantinos Kodonas, Theodoros Lillis, Alexander Veis
PURPOSE: Citation analysis is the field of bibliometrics that uses citation data to evaluate the scientific recognition and the influential performance of a research article in the scientific community. The aim of this study was to conduct a bibliometric analysis of the top-cited articles pertaining to implant dentistry, to analyze the main characteristics, and to display the most interesting topics and evolutionary trends. MATERIALS AND METHODS: The 100 top-cited articles published in "Dentistry, Oral Surgery, and Medicine" journals were identified using the Science Citation Index Database...
May 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28492066/progression-inference-for-somatic-mutations-in-cancer
#13
Leif E Peterson, Tatiana Kovyrshina
Computational methods were employed to determine progression inference of genomic alterations in commonly occurring cancers. Using cross-sectional TCGA data, we computed evolutionary trajectories involving selectivity relationships among pairs of gene-specific genomic alterations such as somatic mutations, deletions, amplifications, downregulation, and upregulation among the top 20 driver genes associated with each cancer. Results indicate that the majority of hierarchies involved TP53, PIK3CA, ERBB2, APC, KRAS, EGFR, IDH1, VHL, etc...
April 2017: Heliyon
https://www.readbyqxmd.com/read/28481398/evolutionary-trade-offs-in-kidney-injury-and-repair
#14
REVIEW
Yutian Lei, Hans-Joachim Anders
Evolutionary medicine has proven helpful to understand the origin of human disease, e.g. in identifying causal roles of recent environmental changes impacting on human physiology (environment-phenotype mismatch). In contrast, diseases affecting only a limited number of members of a species often originate from evolutionary trade-offs for usually physiologic adaptations assuring reproductive success in the context of extrinsic threats. For example, the G1 and G2 variants of the APOL1 gene supporting control of Trypanosoma infection come with the trade-off that they promote the progression of kidney disease...
May 8, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28475810/draft-genome-sequence-of-the-tibetan-medicinal-herb-rhodiola-crenulata
#15
Yuanyuan Fu, Liangwei Li, Shijie Hao, Rui Guan, Guangyi Fan, Chengcheng Shi, Haibo Wan, Wenbin Chen, He Zhang, Guocheng Liu, Jihua Wang, Lulin Ma, Jianling You, Xuemei Ni, Zhen Yue, Xun Xu, Xiao Sun, Xin Liu, Simon Ming-Yuen Lee
Rhodiola crenulata, a well-known medicinal Tibetan herb, is mainly grown in high-altitude regions of the Tibet, Yunnan, and Sichuan provinces in China. In the past few years, increasing numbers of studies have been published on the potential pharmacological activities of R. crenulata, strengthening our understanding into its putitive active ingredient composition, pharmacological activity, and mechanism of action. These findings also provide strong evidence supporting the important medicinal and economical value of R...
June 1, 2017: GigaScience
https://www.readbyqxmd.com/read/28470161/-evolutionary-concept-analysis-of-spirituality
#16
Il Sun Ko, So Young Choi, Jin Sook Kim
PURPOSE: This study was done to clarify attributes, antecedents, and consequences of spirituality. METHODS: Rodgers's evolutionary concept analysis was used to analyze fifty seven studies from the literature related to spirituality as it appears in systematic literature reviews of theology, medicine, counseling & psychology, social welfare, and nursing. RESULTS: Spirituality was found to consist of two dimensions and eight attributes: 1) vertical dimension: 'intimacy and connectedness with God' and 'holy life and belief', 2) horizontal dimension: 'self-transcendence', 'meaning and purpose in life', 'self-integration', and 'self-creativity' in relationship with self, 'connectedness' and 'trust' in relationship with others·neighbors·nature...
April 2017: Journal of Korean Academy of Nursing
https://www.readbyqxmd.com/read/28459453/the-nephila-clavipes-genome-highlights-the-diversity-of-spider-silk-genes-and-their-complex-expression
#17
Paul L Babb, Nicholas F Lahens, Sandra M Correa-Garhwal, David N Nicholson, Eun Ji Kim, John B Hogenesch, Matjaž Kuntner, Linden Higgins, Cheryl Y Hayashi, Ingi Agnarsson, Benjamin F Voight
Spider silks are the toughest known biological materials, yet are lightweight and virtually invisible to the human immune system, and they thus have revolutionary potential for medicine and industry. Spider silks are largely composed of spidroins, a unique family of structural proteins. To investigate spidroin genes systematically, we constructed the first genome of an orb-weaving spider: the golden orb-weaver (Nephila clavipes), which builds large webs using an extensive repertoire of silks with diverse physical properties...
June 2017: Nature Genetics
https://www.readbyqxmd.com/read/28453650/plantismash-automated-identification-annotation-and-expression-analysis-of-plant-biosynthetic-gene-clusters
#18
Satria A Kautsar, Hernando G Suarez Duran, Kai Blin, Anne Osbourn, Marnix H Medema
Plant specialized metabolites are chemically highly diverse, play key roles in host-microbe interactions, have important nutritional value in crops and are frequently applied as medicines. It has recently become clear that plant biosynthetic pathway-encoding genes are sometimes densely clustered in specific genomic loci: biosynthetic gene clusters (BGCs). Here, we introduce plantiSMASH, a versatile online analysis platform that automates the identification of candidate plant BGCs. Moreover, it allows integration of transcriptomic data to prioritize candidate BGCs based on the coexpression patterns of predicted biosynthetic enzyme-coding genes, and facilitates comparative genomic analysis to study the evolutionary conservation of each cluster...
April 27, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28444606/species-evolution-and-quality-evaluation-of-four-coptis-herbal-medicinal-materials-in-southwest-china
#19
Hanting Chen, Gang Fan, Yang He
Coptis herbs, which are important herbal medicinal materials, are the dried rhizomes of various plants. In China's herbal market, drying herbs can severely influence morphological markers such as shape, color, and odor, which make consumers difficult to precisely identify the herbs and effectively evaluate the quality. Here, we present the phylogenetic analysis of four Coptis herbal medicinal materials based on internal transcribed spacer sequences. C. chinensis, C. omeiensis, C. deltoidea and C. teeta constituted a monophyletic group...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28444439/back-to-the-future-part-2-post-mortem-assessment-and-evolutionary-role-of-the-bio-medicolegal-sciences
#20
REVIEW
Santo Davide Ferrara, Giovanni Cecchetto, Rossana Cecchi, Donata Favretto, Silke Grabherr, Takaki Ishikawa, Toshikazu Kondo, Massimo Montisci, Heidi Pfeiffer, Maurizio Rippa Bonati, Dina Shokry, Marielle Vennemann, Thomas Bajanowski
Part 2 of the review "Back to the Future" is dedicated to the evolutionary role of the bio-medicolegal sciences, reporting the historical profiles, the state of the art, and prospects for future development of the main related techniques and methods of the ancillary disciplines that have risen to the role of "autonomous" sciences, namely, Genetics and Genomics, Toxicology, Radiology, and Imaging, involved in historic synergy in the "post-mortem assessment," together with the mother discipline Legal Medicine, by way of its primary fundament, universally denominated as Forensic Pathology...
April 25, 2017: International Journal of Legal Medicine
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