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https://www.readbyqxmd.com/read/28938122/genome-regulation-by-polycomb-and-trithorax-70-years-and-counting
#1
REVIEW
Bernd Schuettengruber, Henri-Marc Bourbon, Luciano Di Croce, Giacomo Cavalli
Polycomb (PcG) and Trithorax (TrxG) group proteins are evolutionarily conserved chromatin-modifying factors originally identified as part of an epigenetic cellular memory system that maintains repressed or active gene expression states. Recently, they have been shown to globally control a plethora of cellular processes. This functional diversity is achieved by their ability to regulate chromatin at multiple levels, ranging from modifying local chromatin structure to orchestrating the three-dimensional organization of the genome...
September 21, 2017: Cell
https://www.readbyqxmd.com/read/28933126/-endangered-situation-and-conservation-strategy-of-tibetan-medicine-in-qinghai-tibet-plateau
#2
Cai-Yun Zhao, Huan Liu, Jin-Song Su, Xuan-Hao Li, Min-Ru Jia, Yi Zhang, Jing Zhang
With the rapid development of Tibetan medicine industry, the study on plateau medicinal plants' endangered status is not enough, measures to protect is weak and the plateau ecological environment' inherent vulnerability, resulted in the shortage of Tibetan medicinal resources and affect the sustainable development . According to the existing endangered information of Tibetan medicine resources, how to formulate feasible protection plan, is an urgent problem of the rational development and utilization of Tibetan medicine resources to be solved...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28929644/-current-status-and-prospects-of-traditional-chinese-medicine-resource-ex-situ-conservation
#3
REVIEW
Ling Que, Guang Yang, Jian-Hua Miao, Hai-Yang Wang, Min Chen, Chun-Xin Zang
Protection of traditional Chinese medicine (TCM) resources is the foundation of sustainable development of TCM industry, which includes the in-situ and ex-situ conservation. The development of TCM resource ex-situ conservation was reviewed, and hotpots in the conservation and its development practices were analyzed. Therefore national TCM resource ex-situ conservation systems were proposed, including the establishment of TCM resources introduction gardens, TCM resource in vitro conservation library and TCM resource bio-information sharing platform, rational distribution of TCM resources ex-situ conservation agencies, along with the advancement of TCM varieties breeding, and the perfection of Chinese herbal medicines seed and seedlings market, which are of significant importance on the guidance of TCM resource ex-situ conservation development...
October 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28927987/industry-perspective-on-contemporary-protein-binding-methodologies-considerations-for-regulatory-drug-drug-interaction-and-related-guidelines-on-highly-bound-drugs
#4
REVIEW
Li Di, Christopher Breen, Rob Chambers, Sean T Eckley, Robert Fricke, Avijit Ghosh, Paul Harradine, J Cory Kalvass, Stacy Ho, Caroline A Lee, Punit Marathe, Everett J Perkins, Mark Qian, Susanna Tse, Zhengyin Yan, Maciej J Zamek-Gliszczynski
Regulatory agencies have recently issued drug-drug interaction (DDI) guidelines, which require determination of plasma protein binding (PPB). To err on the conservative side, the agencies recommend that a 0.01 lower limit of fraction unbound (fu) be used for highly bound compounds (>99%), irrespective of the actual measured values. While this may avoid false negatives, the recommendation would likely result in a high rate of false positive predictions, resulting in unnecessary clinical studies and more stringent inclusion/exclusion criteria, which may add cost and time in delivery of new medicines to patients...
September 16, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28926862/comparison-of-the-morphology-anatomy-and-chemical-profile-of-mikania-glomerata-and-mikania-laevigata
#5
Vanessa Cruz de Oliveira Costa, Alexandre Augusto Borghi, Juliana Lischka Sampaio Mayer, Alexandra Christine Helena Frankland Sawaya
Mikania glomerata and Mikania laevigata are medicinal plants popularly used in Brazil for colds and asthma. Although several studies report differences in their composition, they are frequently used indistinctly, which may be due to misidentification of the species or the plant part used. Herein, the chemical, anatomical, and morphological profiles of both species were evaluated, seeking to differentiate them. Due to the pattern of secondary metabolites found in M. glomerata and M. laevigata, the chemical profile of the leaves was the characteristic that best differentiated the two species...
September 19, 2017: Planta Medica
https://www.readbyqxmd.com/read/28924510/development-of-est-ssr-markers-for-taxillus-nigrans-loranthaceae-in-southwestern-china-using-next-generation-sequencing
#6
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/28924506/automated-classification-of-tropical-shrub-species-a-hybrid-of-leaf-shape-and-machine-learning-approach
#7
Miraemiliana Murat, Siow-Wee Chang, Arpah Abu, Hwa Jen Yap, Kien-Thai Yong
Plants play a crucial role in foodstuff, medicine, industry, and environmental protection. The skill of recognising plants is very important in some applications, including conservation of endangered species and rehabilitation of lands after mining activities. However, it is a difficult task to identify plant species because it requires specialized knowledge. Developing an automated classification system for plant species is necessary and valuable since it can help specialists as well as the public in identifying plant species easily...
2017: PeerJ
https://www.readbyqxmd.com/read/28924501/identification-and-analysis-of-cyp450-genes-from-transcriptome-of-lonicera-japonica-and-expression-analysis-of-chlorogenic-acid-biosynthesis-related-cyp450s
#8
Xiwu Qi, Xu Yu, Daohua Xu, Hailing Fang, Ke Dong, Weilin Li, Chengyuan Liang
BACKGROUND: Lonicera japonica is an important medicinal plant that has been widely used in traditional Chinese medicine for thousands of years. The pharmacological activities of L. japonica are mainly due to its rich natural active ingredients, most of which are secondary metabolites. CYP450s are a large, complex, and widespread superfamily of proteins that participate in many endogenous and exogenous metabolic reactions, especially secondary metabolism. Here, we identified CYP450s in L...
2017: PeerJ
https://www.readbyqxmd.com/read/28922229/micrornas-as-clinical-biomarkers-and-therapeutic-tools-in-perioperative-medicine
#9
Simone Kreth, Max Hübner, Ludwig Christian Hinske
Over the past decade, evolutionarily conserved, noncoding small RNAs-so-called microRNAs (miRNAs)-have emerged as important regulators of virtually all cellular processes. miRNAs influence gene expression by binding to the 3'-untranslated region of protein-coding RNA, leading to its degradation and translational repression. In medicine, miRNAs have been revealed as novel, highly promising biomarkers and as attractive tools and targets for novel therapeutic approaches. miRNAs are currently entering the field of perioperative medicine, and they may open up new perspectives in anesthesia, critical care, and pain medicine...
September 14, 2017: Anesthesia and Analgesia
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/28911623/a-comparative-study-of-three-tissue-cultured-dendrobium-species-and-their-wild-correspondences-by-headspace-gas-chromatography-mass-spectrometry-combined-with-chemometric-methods
#11
Nai-Dong Chen, Tao You, Jun Li, Li-Tao Bai, Jing-Wen Hao, Xiao-Yuan Xu
Plant tissue culture technique is widely used in the conservation and utilization of rare and endangered medicinal plants and it is crucial for tissue culture stocks to obtain the ability to produce similar bioactive components as their wild correspondences. In this paper, a headspace gas chromatography-mass spectrometry method combined with chemometric methods was applied to analyze and evaluate the volatile compounds in tissue-cultured and wild Dendrobium huoshanense Cheng and Tang, Dendrobium officinale Kimura et Migo and Dendrobium moniliforme (Linn...
October 2016: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28904328/a-narrative-review-of-non-operative-treatment-especially-traditional-chinese-medicine-therapy-for-lumbar-intervertebral-disc-herniation
#12
Bo Zhang, Haidong Xu, Juntao Wang, Bin Liu, Guodong Sun
Lumbar intervertebral disc herniation (LIDH), as the main contributor to low back pain and sciatica, imposes a heavy burden on both the individual and society. Non-operative treatment or conservative treatment has proven effective in alleviation of the symptoms of LIDH and are considered to be a first-line choice for most cases. Active lifestyle, physical therapy, complementary and alternative medicine therapy or Traditional Chinese medicine (TCM) therapy, and pharmacotherapy are routinely used as effective non-operative treatment for LIDH patients...
2017: Bioscience Trends
https://www.readbyqxmd.com/read/28902446/proteomics-insights-into-autophagy
#13
REVIEW
Emmanuel K Cudjoe, Tareq Saleh, Adam Hawkridge, David A Gewirtz
Autophagy, a conserved cellular process by which cells recycle their contents either to maintain basal homeostasis or in response to external stimuli, has for the past two decades become one of the most studied physiological processes in cell biology. The 2016 Nobel Prize in Medicine and Biology to Dr. Ohsumi Yoshinori, one of the first scientists to characterize this cellular mechanism, attests to its importance. The induction and consequent completion of the process of autophagy results in wide ranging changes to the cellular proteome as well as the secretome...
September 13, 2017: Proteomics
https://www.readbyqxmd.com/read/28902130/the-chloroplast-genome-sequence-of-scutellaria-baicalensis-provides-insight-into-intraspecific-and-interspecific-chloroplast-genome-diversity-in-scutellaria
#14
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/28895881/de-novo-assembly-and-analysis-of-polygonatum-sibiricum-transcriptome-and-identification-of-genes-involved-in-polysaccharide-biosynthesis
#15
Shiqiang Wang, Bin Wang, Wenping Hua, Junfeng Niu, Kaikai Dang, Yi Qiang, Zhezhi Wang
Polygonatum sibiricum polysaccharides (PSPs) are used to improve immunity, alleviate dryness, promote the secretion of fluids, and quench thirst. However, the PSP biosynthetic pathway is largely unknown. Understanding the genetic background will help delineate that pathway at the molecular level so that researchers can develop better conservation strategies. After comparing the PSP contents among several different P. sibiricum germplasms, we selected two groups with the largest contrasts in contents and subjected them to HiSeq2500 transcriptome sequencing to identify the candidate genes involved in PSP biosynthesis...
September 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28895235/infrared-assisted-extraction-and-hplc-analysis-of-prunus-armeniaca-l-pomace-and-detoxified-kernel-and-their-antidiabetic-effects
#16
Karim Raafat, Nada El-Darra, Fatima A Saleh, Hiba N Rajha, Richard G Maroun, Nicolas Louka
INTRODUCTION: Prunus armeniaca L. (P. armeniaca) is one of the medicinal plants with a high safety-profile. OBJECTIVES: The aim of this work was to make an infrared-assisted extraction (IR-AE) of P. armeniaca fruit (pomace) and kernel, and analyse them using reverse phase high-performance liquid chromatography (RP-HPLC) aided method. METHODS: IR-AE is a novel-technique aimed at increasing the extraction-efficiency. The antidiabetic-potentials of the P...
September 12, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28894470/trends-in-medicinal-uses-of-edible-wild-vertebrates-in-brazil
#17
Rômulo Romeu Nóbrega Alves, Tacyana Pereira Ribeiro Oliveira, Maria Franco Trindade Medeiros
The use of food medicines is a widespread practice worldwide. In Brazil, such use is often associated with wild animals, mostly focusing on vertebrate species. Here we assessed taxonomic and ecological trends in traditional uses of wild edible vertebrates in the country, through an extensive ethnobiological database analysis. Our results showed that at least 165 health conditions are reportedly treated by edible vertebrate species (n = 204), mostly fishes and mammals. However, reptiles stand out presenting a higher plasticity in the treatment of multiple health conditions...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28889402/social-freezing-in-medical-practice-experiences-and-attitudes-of-gynecologists-in-germany
#18
Maximilian Schochow, Giovanni Rubeis, Grit Büchner-Mögling, Hansjakob Fries, Florian Steger
Surveys of the German public have revealed a high acceptance of social freezing, i.e. oocyte conservation without medical indication. Up to now, there are no investigations available on the experiences and attitudes of health professionals towards social freezing. Between August 2015 and January 2016, we surveyed gynecologists Germany-wide on the topic social freezing. Five gynecologists specialized in reproductive medicine and five office-based gynecologists in standard care were chosen for the survey. The survey was conducted with an explorative, qualitative research design...
September 9, 2017: Science and Engineering Ethics
https://www.readbyqxmd.com/read/28889086/the-notch-3-receptor-a-molecular-switch-to-tumorigenesis
#19
REVIEW
Shakeel Inder, Sinead O'Rourke, Niamh McDermott, Rustom Manecksha, Stephen Finn, Thomas Lynch, Laure Marignol
The Notch pathway is a highly conserved pathway increasingly implicated with the progression of human cancers. Of the four existing receptors associated with the pathway, the deregulation in the expression of the Notch-3 receptor is associated with more aggressive disease and poor prognosis. Selective targeting of this receptor has the potential to enhance current anti-cancer treatments. Molecular profiling strategies are increasingly incorporated into clinical decision making. This review aims to evaluate the clinical potential of Notch-3 within this new era of personalised medicine...
September 1, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28878800/transcriptome-assembly-and-systematic-identification-of-novel-cytochrome-p450s-in-taxus-chinensis
#20
Weifang Liao, Shengying Zhao, Meng Zhang, Kaige Dong, Ying Chen, Chunhua Fu, Longjiang Yu
Taxus spp. is a highly valuable medicinal plant with multiple pharmacological effects on various cancers. Cytochrome P450s (CYP450s) play important roles in the biosynthesis of active compounds in Taxus spp., such as the famous diterpenoid, Taxol. However, some specific CYP450 enzymes involved in the biosynthesis of Taxol remain unknown, and the systematic identification of CYP450s in Taxus has not been reported. In this study, 118 full-length and 175 partial CYP450 genes were identified in Taxus chinensis transcriptomes...
2017: Frontiers in Plant Science
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