OBJECTIVE Recently,some reports show that curcuma has a good curative effect on the treatment of psoriasis;while curcuma has many components,so the present study was designed to investigate the effective parts of curc...OBJECTIVE Recently,some reports show that curcuma has a good curative effect on the treatment of psoriasis;while curcuma has many components,so the present study was designed to investigate the effective parts of curcuma on treatment of psoriasis,in addition,we will explore the mechanisms of curcuma therapeutic effect.METHODS First,we observed that curcuma′s extractions effect on mitosis of mouse vaginal epithelial cells;then psoriasis like was induced by wiping imiquimod in the surface of the binaural dorsal skin of the animal,the score of skin damage was measured on days 7 and 14;in order to explore the mechanisms of curcuma’s extractions on psoriasis,immune factors expression(CK14,CK16,CK17,PCNA,TLR-2,TLR-4,TLR-9)was determined in propranolol induced psoriasis like.RESULTS Curcuma′s extraction prohibited the mitosis of mouse vaginal epithelial cells;curcuma’s extractions produced a significant and dose dependent inhibition of psoriasis during the entire duration of the study in imiquimod induced psoriasis like;and the expression of immune factors(CK14,CK16,CK17,PCNA,TLR-2,TLR-4,TLR-9)was also found to be less in the curcuma′s extraction treated group as compared to control.CONCLUSION We believe that the curative effectof curcuma’sextraction may due to its inhibition effect on the expression of immune factors.Our results contribute towards validation of curcuma in the treatment of psoriasis and other joint disorders.展开更多
This study aimed to investigate the effects of Radix Curcumae fungicides on tobacco brown spot and yield of flue-cured tobacco leaves. Through field experi- ments, control efficiency of Radix Curcumae fungicides again...This study aimed to investigate the effects of Radix Curcumae fungicides on tobacco brown spot and yield of flue-cured tobacco leaves. Through field experi- ments, control efficiency of Radix Curcumae fungicides against tobacco brown spot was investigated. The results showed that the average control efficiency of 400-fold, 600-fold and 800-fold Radix Curcumae fungicides against tobacco brown spot reached 37.83%, 34.09% and 24.32%, respectively. This study could provide the ba- sis for screening and application of plant-derived fungicides against tobacco brown spot.展开更多
Crude plant extracts of ringworm cassia, Cassia alata L. and turmeric, Curcuma longa L. were prepared by either hot water or organic solvents such as ethanol and ether. Various concentrations of the crude extract were...Crude plant extracts of ringworm cassia, Cassia alata L. and turmeric, Curcuma longa L. were prepared by either hot water or organic solvents such as ethanol and ether. Various concentrations of the crude extract were then subjected to an in vitro test for their effectiveness on mycelia growth inhibition against some important plant pathogenic fungi such as Alternaria alternata, Colletotrichum gloeosporioides, Fusarium oxysporum fsp. lycopersici, Sclerotium rolfsii, Phytophthora infestans and Pythium sp. in comparison to commercial fungicides such as copper oxychloride and mancozeb. Reduction of the fungal growth was significantly obtained with C. longa extracts and the best median effective inhibitory concentration (IC50) value of 6.07, 6.50 and 7.13 mg/ml was from the ethanol extract for S. rolfsii, C. gloeosporioides and F. oxysporum fsp. lycopersici respectively. While all extracts from C. alata were almost the least effective against these fungi. The efficacy of C. longa extracts therefore, provided an alternative regime for the control of the fungal diseases and a promising appreciable choice for a replacement of chemical fungicides.展开更多
文摘OBJECTIVE Recently,some reports show that curcuma has a good curative effect on the treatment of psoriasis;while curcuma has many components,so the present study was designed to investigate the effective parts of curcuma on treatment of psoriasis,in addition,we will explore the mechanisms of curcuma therapeutic effect.METHODS First,we observed that curcuma′s extractions effect on mitosis of mouse vaginal epithelial cells;then psoriasis like was induced by wiping imiquimod in the surface of the binaural dorsal skin of the animal,the score of skin damage was measured on days 7 and 14;in order to explore the mechanisms of curcuma’s extractions on psoriasis,immune factors expression(CK14,CK16,CK17,PCNA,TLR-2,TLR-4,TLR-9)was determined in propranolol induced psoriasis like.RESULTS Curcuma′s extraction prohibited the mitosis of mouse vaginal epithelial cells;curcuma’s extractions produced a significant and dose dependent inhibition of psoriasis during the entire duration of the study in imiquimod induced psoriasis like;and the expression of immune factors(CK14,CK16,CK17,PCNA,TLR-2,TLR-4,TLR-9)was also found to be less in the curcuma′s extraction treated group as compared to control.CONCLUSION We believe that the curative effectof curcuma’sextraction may due to its inhibition effect on the expression of immune factors.Our results contribute towards validation of curcuma in the treatment of psoriasis and other joint disorders.
基金Supported by Independent Project of Luzhou Branch of Sichuan Tobacco Company(20140105)
文摘This study aimed to investigate the effects of Radix Curcumae fungicides on tobacco brown spot and yield of flue-cured tobacco leaves. Through field experi- ments, control efficiency of Radix Curcumae fungicides against tobacco brown spot was investigated. The results showed that the average control efficiency of 400-fold, 600-fold and 800-fold Radix Curcumae fungicides against tobacco brown spot reached 37.83%, 34.09% and 24.32%, respectively. This study could provide the ba- sis for screening and application of plant-derived fungicides against tobacco brown spot.
文摘Crude plant extracts of ringworm cassia, Cassia alata L. and turmeric, Curcuma longa L. were prepared by either hot water or organic solvents such as ethanol and ether. Various concentrations of the crude extract were then subjected to an in vitro test for their effectiveness on mycelia growth inhibition against some important plant pathogenic fungi such as Alternaria alternata, Colletotrichum gloeosporioides, Fusarium oxysporum fsp. lycopersici, Sclerotium rolfsii, Phytophthora infestans and Pythium sp. in comparison to commercial fungicides such as copper oxychloride and mancozeb. Reduction of the fungal growth was significantly obtained with C. longa extracts and the best median effective inhibitory concentration (IC50) value of 6.07, 6.50 and 7.13 mg/ml was from the ethanol extract for S. rolfsii, C. gloeosporioides and F. oxysporum fsp. lycopersici respectively. While all extracts from C. alata were almost the least effective against these fungi. The efficacy of C. longa extracts therefore, provided an alternative regime for the control of the fungal diseases and a promising appreciable choice for a replacement of chemical fungicides.