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Characteristics of extracts from Prunella vulgaris on the immune response of monocytes/macrophagesFang, Xuya., 方旭亞. January 2004 (has links)
published_or_final_version / abstract / toc / Botany / Master / Master of Philosophy
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Characteristics of extracts from Prunella vulgaris on the immune response of monocytes/macrophagesFang, Xuya. January 2004 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2005. / Title proper from title frame. Also available in printed format.
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Introdukce druhu Prunella vulgaris L. (černohlávku obecného) mezi pěstované léčivé rostlinyNeugebauerová, Jarmila January 2004 (has links)
No description available.
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Prunella Vulgaris Aqueous Extract Attenuates IL-1β-Induced Apoptosis and NF-κB Activation in Ins-1 CellsWu, Huiping, Gao, Ming, Ha, Tuanzhu, Kelley, Jim, Young, Ada, Breuel, Kevin 01 June 2012 (has links)
We previously reported that Prunella vulgaris aqueous extract (PVAE) promotes hepatic glycogen synthesis and decreases postprandial hyperglycemia in ICR mice. Inflammatory cytokines play a critical role in the pathogenesis of diabetes. This study was designed to examine whether PVAE has a protective effect on IL-1β-induced apoptosis in INS-1 cells. INS-1 pancreatic β cells were plated at 2×10 6/ml and treated with PVAE (100 μg/ml) 30 min before the cells were challenged with IL-1β (10 ng/ml). Untreated INS-1 cells served as control. INS-1 cell cytotoxicity was examined by MTT and lactate dehydrogenase (LDH) activity assays. Caspase-3 activity and activation of the apoptotic signaling pathway were analyzed by western blotting. NF-κB binding activity was examined by EMSA. The levels of inflammatory cytokines in the supernatant were measured by ELISA. IL-1β treatment significantly induced INS-1 cell death by 49.2%, increased LDH activity by 1.5-fold and caspase-3 activity by 7.6-fold, respectively, compared with control cells. However, PVAE administration significantly prevented IL-1β-increased INS-1 cell death and LDH activity and attenuated IL-1β-increased caspase-3 activity. Western blot data showed that PVAE also significantly attenuated IL-1β-increased Fas, FasL and phospho-JNK levels in the INS-1 cells. In addition, PVAE treatment significantly attenuated IL-1β-increased NF-κB binding activity and prevented IL-1β-increased TNF-α and IL-6 expression in INS-1 cells. Our data suggest that PVAE has a protective effect on IL-1β-induced INS-1 cell apoptosis. PVAE also attenuates IL-1β-increased NF-κB binding activity and inflammatory cytokine expression in INS-1 cells. PVAE may have a benefit for type I diabetic patients.
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Effekter av osmotisk potential, samt salteffekter på några vägkantsväxter. / Effects of osmotic potential and salt effects on some roadside plants.Blomqvist, Elin January 2018 (has links)
Syftet med studien var att undersöka effekter på frögroning i form av procentuell frögroning och mean germination time (MGT) för några vanligt förekommande vägkantsväxter till följd av saltning av vägar. Frön från (Prunella vulgaris), getväppling (Anthyllis vulneraria), grått saltgräs (Puccinella distans), grässtjärnblomma (Stellaria graminea) och tjärblomster (Viscaria vulgaris) fördelades i petriskålar och utsattes för mannitol- och natriumkloridlösningar av osmotisk potential -0,3, -0,6 och -0,9 MPa. Mannitol användes för att skilja osmotiska effekter från joniska effekter som natriumklorid ger upphov till. Kontroller med avjoniserat vatten visade frögroning i frånvaro av osmotiska- och joniska effekter. Den procentuella frögroningen var högst i kontrollerna för samtliga arter och minskade med en lägre osmotisk potential. Tjärblomster visade sig gro bäst under samtliga behandlingar. Lägst procentuell groning hade grått saltgräs och grässtjärnblomma. Det tog längre tid för alla arter att gro under en lägre osmotisk potential. Tjärblomster och getväppling visade sig mest känsliga mot abiotiska förändringar och grodde långsammast i förhållande till kontroller för respektive art. Vilket ämne som fröna utsattes för hade ingen påverkan på procentuell groning och MGT, vilket tyder på att det är osmotiska effekter som påverkar arternas frögroning. / The aim of this study was to investigate effects of lowered osmotic potential and osmotic agents on seedling germination and mean germination time (MGT) of some common roadside plants. Seeds of Prunella vulgaris, Anthyllis vulneraria, Puccinella distans, Stellaria graminea and Viscaria vulgaris were distributed in petri dishes and exposed to mannitol and sodium chloride solutions with osmotic potential of -0.3, - 0.6 and -0.9 MPa. Mannitol was used to distinguish osmotic effects from ionic effects caused by sodium chloride. Controls with distilled water showed germination in the absence of osmotic and ionic effects. The percentage of emerged seedlings were highest in controls for all species and decreased with a lower osmotic potential. Viscaria vulgaris had the highest percentage of emerged seedlings across all treatments. The lowest percentage of emerged seedlings had Puccinella distans and Stellaria graminea. It took longer time for all species to germinate under a lower osmotic potential. Viscaria vulgaris and Anthyllis vulneraria turned out to be most sensitive to abiotic changes and grew slowest in relation to controls. There was no difference in the impact of the osmotic agent on percentage germination and MGT, indicating that it is mainly the osmotic effect that affects the seed germination.
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