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https://www.readbyqxmd.com/read/28435974/-antidepressant-effects-of-the-extract-of-dendrobium-nobile-lindl-on-chronic-unpredictable-mild-stress-induced-depressive-mice
#1
Ning Jiang, Lin-Xi Fan, Yu-Jie Yang, Xin-Min Liu, Hai-Ying Lin, Li Gao, Qiong Wang
To investigate whether the extract of Dendrobium nobile Lindl (DNL) has an antidepressant effect on chronic unpredictable mild stress (CUMS)-induced depressive mice, 72 BALB/c male mice were randomly divided into the control group, the CUMS model group, the extract of DNL groups (50, 100 and 200 mg/kg DNL, i.g.) and the paroxetine group (10 mg/kg, i.g.). The different doses of DNL or the paroxetine was administered orally once daily to CUMS mice for 8 weeks (containing two-week preventive medication before the modeling)...
April 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28417634/anti-influenza-a-virus-activity-of-dendrobine-and-its-mechanism-of-action
#2
Richan Li, Teng Liu, Miaomiao Liu, Feimin Chen, Shu-Wen Liu, Jie Yang
Dendrobine, a major component of Dendrobium nobile, increasingly draws attention to its wide applications in health care. Here we explore potential effect of dendrobine against influenza A virus and elucidate the underlying mechanism. Our results indicated that dendrobine possessed antiviral activity against influenza A viruses, including A/FM-1/1/47 (H1N1), A/Puerto Rico/8/34 H274Y (H1N1) and A/Aichi/2/68 (H3N2) with IC50 value of 3.39±0.32, 2.16±0.91, 5.32±1.68 μg/mL, respectively. Mechanism studies revealed that dendrobine inhibited early steps in the viral replication cycle...
April 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28394301/structural-analysis-and-immuno-stimulating-activity-of-an-acidic-polysaccharide-from-the-stems-of-dendrobium-nobile-lindl
#3
Jun-Hui Wang, Shu-Rong Zuo, Jian-Ping Luo
Dendrobium nobile Lindl., an epiphytic herb distributed in the Southeast Asia, is used as a tonic and antipyretic herbal medicine in China. In this study, a water-soluble acidic heteropolysaccharide, DNP-W4, containing mannose, glucose, galactose, xylose, rhamnose, and galacturonic acid, in the molar ratios of 1.0:4.9:2.5:0.5:1.0:0.9, was obtained from the stems of Dendrobium nobile Lindl. Using methylation analysis, partial acid hydrolysis, pectolyase treatment, NMR, and ESI-MS, the structure of DNP-W4 was elucidated...
April 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28386292/dendrobium-officinale-kimura-et-migo-a-review-on-its-ethnopharmacology-phytochemistry-pharmacology-and-industrialization
#4
REVIEW
Hanxiao Tang, Tianwen Zhao, Yunjie Sheng, Ting Zheng, Lingzhu Fu, Yongsheng Zhang
Ethnopharmacological Relevance. Dendrobii Officinalis Caulis, the stems of Dendrobium officinale Kimura et Migo, as a tonic herb in Chinese materia medica and health food in folk, has been utilized for the treatment of yin-deficiency diseases for decades. Methods. Information for analysis of Dendrobium officinale Kimura et Migo was obtained from libraries and Internet scientific databases such as PubMed, Web of Science, Google Scholar, ScienceDirect, Wiley InterScience, Ingenta, Embase, CNKI, and PubChem. Results...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28386268/doap1-promotes-flowering-in-the-orchid-dendrobium-chao-praya-smile
#5
Nunchanoke Sawettalake, Sumontip Bunnag, Yanwen Wang, Lisha Shen, Hao Yu
APETALA1 (AP1) encodes a key MADS-box transcription factor that specifies the floral meristem identity on the flank of the inflorescence meristem, and determines the identity of perianth floral organs in the model plant Arabidopsis thaliana. Orchids are members of the Orchidaceae, one of the largest families of angiosperms. Although the expression patterns of a few AP1-like genes in orchids have been reported, their actual functions in orchid reproductive development are so far largely unknown. In this study, we isolated and characterized an AP1 ortholog, DOAP1, from Dendrobium Chao Praya Smile...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28361995/comparative-transcriptomic-analysis-of-vernalization-and-cytokinin-induced-floral-transition-in-dendrobium-nobile
#6
Zhenzhen Wen, Wenzhong Guo, Jinchi Li, Haisheng Lin, Chunmei He, Yunquan Liu, Qunyu Zhang, Wei Liu
Vernalization is required for floral initiation in Dendrobium. Interestingly, those beneficial effects can also be achieved by exogenous cytokinin application in greenhouses. Thus, an as yet unknown crosstalk/interaction may exist between vernalization and cytokinin signaling pathways. In this study, we showed, by de novo transcriptome assembly using RNA-seq data from both vegetative and reproductive tissue samples, that some floral transition-related genes-DnVRN1, FT, SOC1, LFY and AP1-were differentially expressed in low-temperature-challenged (LT) or thidiazuron (TDZ)-treated plants, compared to those mock-treated (CK)...
March 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331229/transcriptome-analysis-of-genes-involved-in-dendrobine-biosynthesis-in-dendrobium-nobile-lindl-infected-with-mycorrhizal-fungus-mf23-mycena-sp
#7
Qing Li, Gang Ding, Biao Li, Shun-Xing Guo
Content determination and microscopic observation proved that dendrobine accumulation in the stem of Dendrobium nobile Lindl. increased after infection with mycorrhizal fungus MF23 (Mycena sp.). Large-scale transcriptome sequencing of symbiotic and asymbiotic D. nobile revealed that 30 unigenes encoding proteins were possibly related to the biosynthesis of dendrobine sesquiterpene backbone. A qRT-PCR experiment of 16 unigenes, selected randomly, proved that there were significant changes in the expression levels of AACT, MVD, PMK and TPS21 at 9 weeks after inoculation...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28304124/distinguishing-the-chinese-materia-medica-tiepishihu-from-similar-dendrobium-species-of-the-same-genus-using-histological-and-microscopic-method
#8
Kun-Zi Yu, Hua Yan, Hai-Chuan Tai, Nan-Ping Zhang, Xian-Long Cheng, Zeng-Xi Guo, Shuang-Cheng Ma, Feng Wei
The Chinese Materia Medica, Tiepishihu, used as a tonic for over one thousand years, is a well-known precious medicine in China. According to the Chinese Pharmacopoeia, its source is the species Dendrobium officinale Kimura et Migo, which is distinguished from other species in Dendrobium genus. However, these species from the same genus are similar with Tiepishihu and caused confusion in the market. To find a quick and simple method to distinguish Tiepishihu from other similar species, histologic and microscopic methods were combined together to investigate the transverse section of stem of Tiepishihu and other similar species...
March 17, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28299575/phylogenetic-constrains-on-mycorrhizal-specificity-in-eight-dendrobium-orchidaceae-species
#9
Xiaoke Xing, Xueting Ma, Jinxin Men, Yanhong Chen, Shunxing Guo
Plant phylogeny constrains orchid mycorrhizal (OrM) fungal community composition in some orchids. Here, we investigated the structures of the OrM fungal communities of eight Dendrobium species in one niche to determine whether similarities in the OrM fungal communities correlated with the phylogeny of the host plants and whether the Dendrobium-OrM fungal interactions are phylogenetically conserved. A phylogeny based on DNA data was constructed for the eight coexisting Dendrobium species, and the OrM fungal communities were characterized by their roots...
March 13, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28298629/identification-and-analysis-of-genes-associated-with-the-synthesis-of-bioactive-constituents-in-dendrobium-officinale-using-rna-seq
#10
Chenjia Shen, Hong Guo, Hailing Chen, Yujun Shi, Yijun Meng, Jiangjie Lu, Shangguo Feng, Huizhong Wang
Dendrobium officinale L. is an important traditional herb with high commercial value in China. Several bioactive constituents, including polysaccharides and alkaloids, reportedly make major contributions toward the excellent medicinal effect of D. officinale. In this study, the contents of polysaccharides and alkaloids in various organs of D. officinale were measured and compared. We took advantage of transcriptomes from four organs to explore biological mechanisms in the organ-specific distribution of active ingredients in D...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28281361/simultaneous-determination-and-anti-inflammatory-effects-of-four-phenolic-compounds-in-dendrobii-herba
#11
Sae-Rom Yoo, Soo-Jin Jeong, Na-Ri Lee, Hyeun-Kyoo Shin, Chang-Seob Seo
Dendrobii Herba, a traditional Korean medicine, is used for treating atrophic gastritis, diabetes and cardiovascular diseases. Phytochemical studies of Dendrobium species and their compounds have been conducted. However, the pharmaceutical effects of these compounds have not yet been elucidated. We performed quantitative determination of four phenolic compounds, - (1) 4-hydroxybenzoic acid, (2) vanillic acid (3) syringic acid and (4) ferulic acid - in Dendrobii Herba using high-performance liquid chromatography coupled with a photodiode array detector...
March 10, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28262789/iteration-expansion-and-regional-evolution-phylogeography-of-dendrobium-officinale-and-four-related-taxa-in-southern-china
#12
Beiwei Hou, Jing Luo, Yusi Zhang, Zhitao Niu, Qingyun Xue, Xiaoyu Ding
The genus Dendrobium was used as a case study to elucidate the evolutionary history of Orchidaceae in the Sino-Japanese Floristic Region (SJFR) and Southeast Asia region. These evolutionary histories remain largely unknown, including the temporal and spatial distribution of the evolutionary events. The present study used nuclear and plastid DNA to determine the phylogeography of Dendrobium officinale and four closely related taxa. Plastid DNA haplotype and nuclear data were shown to be discordant, suggesting reticulate evolution drove the species' diversification...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28261990/dendrobium-nobile-lindl-alkaloid-a-novel-autophagy-inducer-protects-against-axonal-degeneration-induced-by-a%C3%AE-25-35-in-hippocampus-neurons-in-vitro
#13
Li-Sheng Li, Yan-Liu Lu, Jing Nie, Yun-Yan Xu, Wei Zhang, Wen-Jin Yang, Qi-Hai Gong, Yuan-Fu Lu, Yang Lu, Jing-Shan Shi
AIMS: Axonal degeneration is a pathological symbol in the early stage of Alzheimer's disease (AD), which can be triggered by amyloid-β (Aβ) peptide deposition. Growing evidence indicates that deficit of autophagy eventually leads to the axonal degeneration. Our previous studies have shown that Dendrobium nobile Lindl alkaloid (DNLA) had protective effect on neuron impairment in vivo and in vitro; however, the underlying mechanisms is still unclear. METHODS: We exposed cultured hippocampus neurons to Aβ25-35 to investigate the effect of DNLA in vitro...
March 5, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28261235/cytochemical-localization-of-polysaccharides-in-dendrobium-officinale-and-the-involvement-of-docsla6-in-the-synthesis-of-mannan-polysaccharides
#14
Chunmei He, Kunlin Wu, Jianxia Zhang, Xuncheng Liu, Songjun Zeng, Zhenming Yu, Xinghua Zhang, Jaime A Teixeira da Silva, Rufang Deng, Jianwen Tan, Jianping Luo, Jun Duan
Dendrobium officinale is a precious traditional Chinese medicinal plant because of its abundant polysaccharides found in stems. We determined the composition of water-soluble polysaccharides and starch content in D. officinale stems. The extracted water-soluble polysaccharide content was as high as 35% (w/w). Analysis of the composition of monosaccharides showed that the water-soluble polysaccharides were dominated by mannose, to a lesser extent glucose, and a small amount of galactose, in a molar ratio of 223:48:1...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28258650/concomitant-loss-of-ndh-complex-related-genes-within-chloroplast-and-nuclear-genomes-in-some-orchids
#15
Choun-Sea Lin, Jeremy J W Chen, Chi-Chou Chiu, Han C W Hsiao, Chen-Jui Yang, Xiao-Hua Jin, James Leebens-Mack, Claude W de Pamphilis, Yao-Ting Huang, Ling-Hung Yang, Wan-Jung Chang, Ling Kui, Gane Ka-Shu Wong, Jer-Ming Hu, Wen Wang, Ming-Che Shih
The chloroplast NAD(P)H dehydrogenase-like (NDH) complex consists of about 30 subunits from both the nuclear and chloroplast genomes and is ubiquitous across most land plants. In some orchids, such as Phalaenopsis equestris, Dendrobium officinale and Dendrobium catenatum, most of the 11 chloroplast genome-encoded ndh genes (cp-ndh) have been lost. Here we investigated whether functional cp-ndh genes have been completely lost in these orchids or whether they have been transferred and retained in the nuclear genome...
March 4, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28250593/assessment-of-genetic-diversity-among-four-orchids-based-on-ddrad-sequencing-data-for-conservation-purposes
#16
Subhas Chandra Roy, Kaushik Moitra, Dilip De Sarker
Genetic diversity was assessed in the four orchid species using NGS based ddRAD sequencing data. The assembled nucleotide sequences (fastq) were deposited in the SRA archive of NCBI Database with accession number (SRP063543 for Dendrobium, SRP065790 for Geodorum, SRP072201 for Cymbidium and SRP072378 for Rhynchostylis). Total base pair read was 1.1 Mbp in case of Dendrobium sp., 553.3 Kbp for Geodorum sp., 1.6 Gbp for Cymbidium, and 1.4 Gbp for Rhynchostylis. Average GC% was 43.9 in Geodorum, 43.7% in Dendrobium, 41...
January 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/28249822/ethnobotanical-survey-of-herbal-tea-plants-from-the-traditional-markets-in-chaoshan-china
#17
Dong-Lin Li, Xi-Long Zheng, Lei Duan, Shuang-Wen Deng, Wen Ye, Ai-Hua Wang, Fu-Wu Xing
ETHNOPHARMACOLOGICAL RELEVANCE: Herbal tea, which refers to "cooling tea", "cool beverage", or "liáng chá" in China, includes a range of drinks with heat-clearing and detoxification qualities. Herbal tea plants are great contributive to the health and prosperity of Chaoshan people. The aim of the study was to document herbal tea plant species used and commercialized as "liáng chá" in Chaoshan area, to facilitate the use and development of herbal tea enterprises, and to promote the further development of national herbal tea...
February 26, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28245766/current-advances-in-the-biological-activity-of-polysaccharides-in-dendrobium-with-intriguing-therapeutic-potential
#18
Chun-Ting Lee, Heng-Chun Kuo, Yung-Hsiang Chen, Ming-Yen Tsai
The polysaccharides in many plants are attracting worldwide attention because of their biological activities and medical properties, such as anti-viral, anti-oxidative, anti-chronic inflammation, anti-hypertensive, immunomodulation, and neuron-protective effects, as well as anti-tumor activity. Denodrobium species, a genus of the family orchidaceae, have been used as herbal medicines for hundreds of years in China due to their pharmacological effects. These effects include nourishing the Yin, supplementing the stomach, increasing body fluids, and clearing heat...
February 27, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28245078/identification-of-huoshan-shihu-fengdou-comparative-authentication-of-the-daodi-herb-dendrobium-huoshanense-and-its-related-species-by-macroscopic-and-microscopic-features
#19
Yujiao Zhao, Bangxing Han, Huasheng Peng, Xiao Wang, Shanshan Chu, Jun Dai, Daiyin Peng
"Huoshan shihu," derived from Dendrobium huoshanense, is a well-known, valuable, and rare Daodi herb. Because of its higher price and scarce resources, its related species D. officinale and D. moniliforme are usually presented as "Huoshan shihu" for sale. Fengdou, the processed form of D. huoshanense, its identification is particularly important. To effectively identify Fengdou of D. huoshanense and protect the Daodi herb, the morphological and microscopic characteristics of the stems of three Dendrobium species were examined...
February 28, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28216896/therapeutic-effect-of-dendrobium-candidum-on-lupus-nephritis-in-mice
#20
Qiang Wang, Peng Sun, Rui Wang, Xin Zhao
CONTEXT: Dendrobium candidum (D. candimum) widely is a functional drug. The curative effect of D. candidum on lupus nephritis has been studied in vivo. MATERIALS AND METHOD: The DBA/2 and B6D2F1 mice were used for this in vivo experiment. The 50% effective dose (ED50) was used to check the effective concentration for this study. Then the SCr, BUN, TC, TG, IL-6, IL-12, TNF-α, and IFN-γ levels were determined by kits. The output of urine protein was determined by means of Coomassie Brilliant Blue, and the auto-antibody dsDNA was determined with titer plate technology and indirect immunofluorescence...
January 2017: Pharmacognosy Magazine
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