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https://www.readbyqxmd.com/read/28441352/high-throughput-determination-of-sodium-danshensu-in-beagle-dogs-by-the-lcms-ms-method-employing-liquid-liquid-extraction-based-on-96-well-format-plates
#1
Jingjing Jiang, Xin Zhao, Xiuxiu Li, Shengyuan Wu, Shidan Yu, Yuefen Lou, Guorong Fan
Sodium Danshensu (sodium d-(+)-β-(3,4-dihydroxyphenyl) lactate), one of the water-soluble ingredients in Salvia miltiorrhiza, exhibits potent relaxation of the coronary artery and anticoagulation effection. A high-throughput, rapid, and sensitive method combining liquid chromatography with electrospray ionization tandem mass spectrometry to determine the sodium danshensu in beagle dog plasma was developed and validated, using gallic acid as an internal standard (IS). Acidified plasma samples were extracted using 96-well liquid-liquid extraction, and were eluted on a CNW Athena C18 column (3 μm, 2...
April 25, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28440499/effects-of-tanshinone-iia-on-the-regulation-of-renal-proximal-tubular-fibrosis
#2
Luoyuan Cao, Baoying Huang, Xianguo Fu, Jing Yang, Yinghua Lin, Feng Lin
The development of diabetes mellitus, along with its complications, is a chronic inflammatory response process. Chronic kidney diseases are characterized by renal fibrosis, and fibrosis is an important pathway for end‑stage renal failure. According to previous studies, high glucose (HG) has been demonstrated to be the most important fibrogenesis‑inducing agent. Tanshinone IIA is one of the main components isolated from Danshen (Salvia miltiorrhiza). Although tanshinone IIA has been widely used for the treatment of cardiovascular diseases, the possible role of tanshinone IIA in fibrosis regulation remains to be elucidated and requires investigation...
April 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28438203/genetic-diversity-of-calcareous-grassland-plant-species-depends-on-historical-landscape-configuration
#3
Christoph Reisch, Sonja Schmidkonz, Katrin Meier, Quirin Schöpplein, Carina Meyer, Christian Hums, Christina Putz, Christoph Schmid
BACKGROUND: Habitat fragmentation is considered to be a main reason for decreasing genetic diversity of plant species. However, the results of many fragmentation studies are inconsistent. This may be due to the influence of habitat conditions, having an indirect effect on genetic variation via reproduction. Consequently we took a comparative approach to analyse the impact of habitat fragmentation and habitat conditions on the genetic diversity of calcareous grassland species in this study...
April 24, 2017: BMC Ecology
https://www.readbyqxmd.com/read/28437138/epidemiology-of-basil-downy-mildew
#4
Yigal Cohen, Yariv Ben-Naim, Lidan Falach, Evgenia Rubin
Basil downy mildew (BDM) caused by the oomycete Peronospora belbahrii is a destructive disease of sweet basil (Ocimum basilicum) worldwide. It has originated in Uganda in the 1930's and recently spread to Europe, Middle East, Americas and the Far East. Seed transmission may be responsible to its quick global spread. The pathogen attacks leaf blades, producing chlorotic lesions with ample dark asexual spores on the lower leaf surface. Oospores may occur in the mesophyll of infected leaves. The asexual spores germinate on a wet leaf surface within 2h and penetrate into the epidermis within 4h...
April 24, 2017: Phytopathology
https://www.readbyqxmd.com/read/28430131/evaluation-of-tanshinone-iia-developmental-toxicity-in-zebrafish-embryos
#5
Tao Wang, Chengxi Wang, Qiong Wu, Kangdi Zheng, Jiaojiao Chen, Yutao Lan, Yao Qin, Wenjie Mei, Baoguo Wang
Tanshinone IIA (Tan-IIA) is derived from the dried roots of Salvia miltiorrhiza Bunge, a traditional Chinese medicine. Although Salvia miltiorrhiza has been applied for many years, the toxicity of the mono-constituent of Salvia miltiorrhiza, tanshinone IIA, is still understudied. This study evaluated the cardiotoxicity and developmental malformations of Tan-IIA by using zebrafish normal embryos and dechorionated embryos. After treatment with Tan-IIA in different concentrations for four-day periods, obvious pericardial edema, spinal curvature, and even missing tails were observed in zebrafish embryos...
April 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28427101/tanshinol-alleviates-osteoporosis-and-myopathy-in-glucocorticoid-treated-rats
#6
Guanghua Chen, Xinle Zhang, Han Lin, Guizhi Huang, Yahui Chen, Liao Cui
Tanshinol is a major water-soluble active component of Salvia miltiorrhiza. In this study, we aimed to investigate whether tanshinol has potential therapeutic effects against glucocorticoid-induced osteoporosis and glucocorticoid-induced myopathy. Ninety-six female Sprague-Dawley rats were randomly assigned to five groups: a control group, a model group, and three model groups treated with 25 or 50 mg/kg of tanshinol, or calcitriol. All model groups received prednisone acetate for 90 days to induce glucocorticoid-induced osteoporosis...
April 20, 2017: Planta Medica
https://www.readbyqxmd.com/read/28425219/resistance-modifying-activity-in-vinblastine-resistant-human-breast-cancer-cells-by-oligosaccharides-obtained-from-mucilage-of-chia-seeds-salvia-hispanica
#7
Daniel G Rosas-Ramírez, Mabel Fragoso-Serrano, Sonia Escandón-Rivera, Alba L Vargas-Ramírez, Juan P Reyes-Grajeda, Manuel Soriano-García
The multidrug resistance (MDR) phenotype is considered as a major cause of the failure in cancer chemotherapy. The acquisition of MDR is usually mediated by the overexpression of drug efflux pumps of a P-glycoprotein. The development of compounds that mitigate the MDR phenotype by modulating the activity of these transport proteins is an important yet elusive target. Here, we screened the saponification and enzymatic degradation products from Salvia hispanica seed's mucilage to discover modulating compounds of the acquired resistance to chemotherapeutic in breast cancer cells...
April 20, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28422509/%C3%AE-glucosidase-inhibitors-from-salvia-circinata
#8
Laura Flores-Bocanegra, Martin González-Andrade, Robert Bye, Edelmira Linares, Rachel Mata
A dried infusion prepared from the aerial parts of Salvia circinata did not provoke acute toxicity in mice (LD50 > 5 g/kg). This infusion showed poor hypoglycemic and antihyperglycemic effects (100-570 mg/kg) when tested in normal and hyperglycemic mice using acute and oral glucose tolerance tests, respectively. However, this infusion possessed antihyperglycemic action in vivo during an oral sucrose tolerance test (31.6-316 mg/kg), suggesting the presence of α-glucosidase inhibitors in S. circinata. Fractionation of a nonpolar extract of the aerial parts of the plant yielded a new biflavone (1) and four new neoclerodane diterpenoid glucosides (2-5) along with the known compounds amarisolide (6), pedalitin (7), apigenin-7-O-β-d-glucoside (8), and the flavone 2-(3,4-dimethoxyphenyl)-5,6-dihydroxy-7-methoxy-4H-chromen-4-one (9)...
April 19, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28415854/new-phenolic-acids-from-salvia-yunnanensis-c-h-wright
#9
Yun Yu, Yin-Ru Wang, Zhen-Huan Dong, Wei Li, Shu-Ming Li, Xue-Feng Huang
Two new phenolic acids, ethyl pro-lithospermate (1), n-butyl pro-lithospermate (2) were isolated from Salvia yunnanensis C.H.Wright, along with nineteen known compounds (3-21). The structures of the isolated compounds were elucidated on the basis of extensive spectrometry and by comparing their physical and spectroscopic data to the literature. Among them, compounds 11, 12 and 14-16 were firstly isolated from S. yunnanensis C.H.Wright. Some of the isolated compounds were evaluated for their neuroprotection...
April 18, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28413985/salvianolic-acid-b-decreases-the-generation-of-amyloid-%C3%AE-by-modulating-bace1-activity
#10
Siva Sundara Kumar Durairajan, Venkat Reddy Chirasani, Sravan Gopalakrishnan Shetty, Ashok Iyaswamy, Sandeep Malampati, Juxian Song, Liangfeng Liu, Jiandong Huang, Sanjib Senapati, Min Li
Generation and accumulation of the amyloid-β (Aβ) peptide after proteolytic processing of the full length amyloid precursor protein (FL-APP) by β-secretase (β-site APP cleaving enzyme or BACE1) and β -secretase is a main causal factor of Alzheimer's disease (AD). Thus, inhibition of BACE1, a rate-limiting enzyme in the production of Aβ, is an attractive therapeutic approach for the treatment of AD. Recent studies suggest that salvianolic acid B (Sal B) isolated from the radix of Salvia miltiorrhiza Bunge, a Chinese herbal medicine commonly used for the treatment of cardiovascular, cerebrovascular and liver diseases in China...
April 17, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28412869/a-novel-salvialactomine-from-the-callus-culture-of-salvia-santolinifolia-boiss
#11
Tour Jan, Raiha Qadri, Beena Naqvi, Achyut Adhikari, Said Nadeem, Akhtar Muhammad
A novel compound Salvialactomine (1) along with two other unusual occurring natural products Pentatriacontanoic acid 1, 3-dihydroxypropyl ester (2) and 5-Methylflavone (3) were isolated from the callus of Salvia santolinifolia Boiss. Callus was initiated on MS medium containing NAA (0.5 mg/L) and further sub-cultured on MS medium supplemented with NAA with BA (0.5 + 1.5 mg/L). The structures of isolated compounds were determined by using mass spectrometry, 1D, and 2D-NMR techniques. Compounds 1, and 3 were tested for two different cancer cell lines, i...
April 17, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28408314/targeting-endothelial-metaflammation-to-counteract-diabesity-cardiovascular-risk-current-and-perspective-therapeutic-options
#12
REVIEW
Maria Assunta Potenza, Carmela Nacci, Maria Antonietta De Salvia, Luca Sgarra, Massimo Collino, Monica Montagnani
The association of obesity and diabetes, termed "diabesity", defines a combination of primarily metabolic disorders with insulin resistance as the underlying common pathophysiology. Cardiovascular disorders associated with diabesity represent the leading cause of morbidity and mortality in the Western world. This makes diabesity, with its rising impacts on both health and economics, one of the most challenging biomedical and social threats of present century. The emerging comprehension of the genes whose alteration confers inter-individual differences on risk factors for diabetes or obesity, together with the potential role of genetically determined variants on mechanisms controlling responsiveness, effectiveness and safety of anti-diabetic therapy underlines the need of additional knowledge on molecular mechanisms involved in the pathophysiology of diabesity...
April 10, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28400810/tanshinone-iia-improves-functional-recovery-in-spinal-cord-injury-induced-lower-urinary-tract-dysfunction
#13
Yong-Dong Yang, Xing Yu, Xiu-Mei Wang, Xiao-Hong Mu, Feng He
Tanshinone IIA, extracted from Salvia miltiorrhiza Bunge, exerts neuroprotective effects through its anti-inflammatory, anti-oxidative and anti-apoptotic properties. This study intravenously injected tanshinone IIA 20 mg/kg into rat models of spinal cord injury for 7 consecutive days. Results showed that tanshinone IIA could reduce the inflammation, edema as well as compensatory thickening of the bladder tissue, improve urodynamic parameters, attenuate secondary injury, and promote spinal cord regeneration...
February 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28399222/morphology-of-the-antenna-of-hermetia-illucens-diptera-stratiomyidae-an-ultrastructural-investigation
#14
M Pezzi, M Leis, M Chicca, P Falabella, R Salvia, A Scala, D Whitmore
The black soldier fly, Hermetia illucens (L.) (Diptera: Stratiomyidae), is a relevant species in waste and pest management, but is also of forensic and medical importance. A scanning electron microscopy (SEM) investigation of the antennae of both sexes of H. illucens is presented here for the first time. The antenna is composed of three regions: the scape, the pedicel, and the flagellum. The first two regions are single segments, whereas the third region, the longest one, is composed of eight flagellomeres...
March 13, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28398557/the-2-oxoglutarate-dependent-dioxygenase-superfamily-participates-in-tanshinone-production-of-salvia-miltiorrhiza
#15
Zhichao Xu, Jingyuan Song
Highly oxidized tanshinones are pharmacological ingredients extracted from the medicinal model plant Salvia miltiorrhiza and are mainly used to treat cardiovascular diseases. Previous studies have confirmed that cytochrome P450 mono-oxygenases (CYP450s) have a key function in the biosynthesis of tanshinones; however, no solid evidence links oxidation to the 2-oxoglutarate-dependent dioxygenase (2OGD) superfamily. Here, we identified 132 members of the DOXB and DOXC subfamilies of 2OGD by scanning the 2OG-FeII Oxy domain using a genome-wide strategy in S...
April 8, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28394931/a-flavone-polysaccharide-based-prescription-attenuates-the-mitochondrial-dysfunction-induced-by-duck-hepatitis-a-virus-type-1
#16
Hongxu Du, Jingjing Yang, Jingying Bai, Ke Ming, Jintong Shi, Fangke Yao, Wei Zhang, Yang Yu, Yun Chen, Wen Xiong, Yi Wu, Deyun Wang, Yuanliang Hu, Jiaguo Liu
The principal target organ of duck hepatitis A virus type 1 (DHAV-1) is duckling liver, which is an energy-intensive organ and plays important roles in body's energy metabolism and conversion. As the "power house" of the hepatocytes, mitochondria provide more than 90% of the energy. However, mitochondria are much vulnerable to the oxidative stress for their rich in polyunsaturated fatty acids. Although previous researches have demonstrated that DHAV-1 could induce the oxidative stress in the serum of the infected ducklings, no related study on the mitochondria during the pathological process of DVH has been reported by far...
2017: PloS One
https://www.readbyqxmd.com/read/28393274/chronic-n-enrichment-and-drought-alter-plant-cover-and-community-composition-in-a-mediterranean-type-semi-arid-shrubland
#17
George L Vourlitis
Anthropogenic nitrogen (N) deposition has caused a decline in native plant species and an increase in exotic plant species in many terrestrial ecosystems; however, vegetation change depends on the rate and/or duration of N input, individual species responses, interactions with other resources, and ecosystem properties such as species richness and canopy cover, soil texture, pH, and/or disturbance regime. Native shrub and exotic forb responses to N enrichment were evaluated over a 13-year field experiment in a mature coastal sage scrub (CSS) shrubland of southern California to test the hypothesis that dry-season N input will cause a decline in native shrubs and an increase in exotic annuals...
April 9, 2017: Oecologia
https://www.readbyqxmd.com/read/28386068/salvia-fruticosa-induces-vasorelaxation-in-rat-isolated-thoracic-aorta-role-of-the-pi3k-akt-enos-no-cgmp-signaling-pathway
#18
M Akhtar Anwar, Ali A Samaha, Samar Ballan, Alaaeldin I Saleh, Rabah Iratni, Ali H Eid
Salvia fruticosa (SF) Mill. is traditionally used for its antihypertensive actions. However, little is known about its pharmacologic and molecular mechanisms of action. Here we determined the effects of an ethanolic extract of SF leaves on rings of isolated thoracic aorta from Sprague-Dawley rats. Our results show that SF extract increased nitric oxide production and relaxed endothelium-intact rings in a dose-dependent (0.3 µg/ml-1 mg/ml) manner, and the maximum arterial relaxation (Rmax) was significantly reduced with endothelium denudation...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28383063/rosmarinic-acid-suppresses-colonic-inflammation-in-dextran-sulphate-sodium-dss-induced-mice-via-dual-inhibition-of-nf-%C3%AE%C2%BAb-and-stat3-activation
#19
Bo-Ram Jin, Kyung-Sook Chung, Se-Yun Cheon, Minho Lee, Soonjae Hwang, Sam Noh Hwang, Ki-Jong Rhee, Hyo-Jin An
Ulcerative colitis (UC), a type of inflammatory bowel disease (IBD), is a chronic inflammatory disorder of the colon. Although UC is generally treated with anti-inflammatory drugs or immunosuppressants, most of these treatments often prove to be inadequate. Rosmarinic acid (RA) is a phenolic ester included in various medicinal herbs such as Salvia miltiorrhiz and Perilla frutescens. Although RA has many biological and pharmacological activities, the anti-inflammatory effect of RA in colonic tissue remains unclear...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28374260/is-there-a-role-for-near-infrared-technology-in-laparoscopic-resection-of-pancreatic-neuroendocrine-tumors-results-of-the-colpan-colour-and-resect-the-pancreas-study
#20
Salvatore Paiella, Matteo De Pastena, Luca Landoni, Alessandro Esposito, Luca Casetti, Marco Miotto, Marco Ramera, Roberto Salvia, Erica Secchettin, Deborah Bonamini, Gessica Manzini, Mirko D'Onofrio, Giovanni Marchegiani, Claudio Bassi
BACKGROUND: The intraoperative identification of pancreatic neuroendocrine tumors (PanNETs) is of utmost importance to drive their laparoscopic resection. Near-infrared (NIR) surgery has emerged as a new technique for localizing tumors or neoplastic tissue. This study aimed to explore the results of the application of NIR in the laparoscopic resection of PanNETs. METHODS: Per protocol we enrolled ten subjects undergoing laparoscopic pancreatic surgery for PanNET from March 2016 to October 2016...
April 3, 2017: Surgical Endoscopy
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