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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Medicinal plants and By-product
- نوع مقاله: Journal Article
- کلمات کلیدی: essential oil,Thymus vulgaris,Titanium dioxide,Water stress
- چکیده:
- چکیده انگلیسی: The aim of this study was to evaluate effect of foliar application of titanium dioxide nanoparticles on quantitative traits and essential oil, thymol and carvacrol percent of thyme under different levels of water stress. Factorial experiment was used based on a completely randomized design with four replications. Factors included water stress (50, 70 and 90% of field capacity) and titanium dioxide nanoparticles (0, 1 and 3 mg/l). Plant height, number of branches, fresh and dry weight of shoot, fresh and dry weight of root and also essential oils (thymol and carvacrol) content were measured using standard compounds by GC-Mass. Results showed that the water deficit affects significantly (P<0.01) on all studied traits. The greatest amount of essence (0.42% per dry matter), thymol (82.302%) and carvacrol (12.33%) at 70% field capacity and the lowest essence (0.30% per dry matter), thymol (77.53%) and carvacrol (11.62%) approached with 50% of field capacity. Analysis of variance showed significant effect (P<0.05) of titanium dioxide concentration on plant height and shoot fresh and dry weights and root dry weight (P<0.01). It was concluded that use of titanium dioxide nanoparticles as spraying under water deficit stress has incremental effect on plant growth characteristics of thyme but had no effect on essential oil components.
- انتشار مقاله: 07-03-1396
- نویسندگان: Bahman Fazeli-Nasab,Ali-Reza Sirousmehr,Hamide Azad
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Otorhinolaryngology
- نوع مقاله: Journal Article
- کلمات کلیدی: Interleukins,Pediatrics,Inflammatory cytokines,Otitis media with effusion
- چکیده:
- چکیده انگلیسی: Introduction:
To evaluate the role of allergic-type and infectious-type cytokines in children with chronic otitis media with effusion (OME)
Materials and Methods:
We investigated serum levels of interleukins (IL)-4, IL-5, and IL-13, along with interferon-gamma (IFN-γ) and tumor necrosis factor-alpha (TNF-α), by enzyme-linked immunosorbent assay (ELISA) in 35 children with OME and 28 healthy controls.
Results:
Children with OME had significantly higher levels of IL-5 in comparison with the control group, ranging from 1 pg/ml in cases to 0.04 pg/ml in controls (P=0.009). However, after adjusting for confounding variables, there was no significant difference in serum levels of IL-13, IL-4, IFN-γ, or TNF-α between the two groups (P=0.287, P=0.627, P=0.793, and P=0.217, respectively)
Conclusions:
The findings of this study suggest that in comparison with the control group, serum IL-5 levels were elevated in OME cases.- انتشار مقاله: 25-11-1394
- نویسندگان: Saba Arshi,Fatemeh Dehghani-Firouzabadi,Babak Ghalehbaghi,Ali Dehghani-Firouzabadi,Farhad Jalali,Mehdi Shekarabi,Reza Sirous,Mohammad Dehghani-Firouzabadi
- مشاهده