Understanding emotion in context: how the Boston marathon bombings altered the impact of anger on threat perception
Abstract
Three studies examine the impact of an anger manipulation on threat perception among Northeastern University students after the Boston Marathon bombings. Data collection for one experiment began within 24 hours of the bombings. Results suggest that the impact of anger on threat perception differed during the week of the bombings compared to 1 and 5 months later. During the week of the bombings only, participants experiencing anger were less sensitive to the distinction between threats and nonthreats, and more biased toward perceiving all stimuli as threatening relative to control participants. We discuss potential...
Source: Journal of Applied Social Psychology - August 31, 2016 Category: Psychiatry & Psychology Authors: Jolie Baumann Wormwood, Anna E. Neumann, Lisa Feldman Barrett, Karen S. Quigley Tags: Original Article Source Type: research
Isolation of 4,5-O-Dicaffeoylquinic Acid as a Pigmentation Inhibitor Occurring in Artemisia capillaris Thunberg and Its Validation In Vivo.
Authors: Tabassum N, Lee JH, Yim SH, Batkhuu GJ, Jung DW, Williams DR
Abstract
There is a continual need to develop novel and effective melanogenesis inhibitors for the prevention of hyperpigmentation disorders. The plant Artemisia capillaris Thunberg (Oriental Wormwood) was screened for antipigmentation activity using murine cultured cells (B16-F10 malignant melanocytes). Activity-based fractionation using HPLC and NMR analyses identified the compound 4,5-O-dicaffeoylquinic acid as an active component in this plant. 4,5-O-Dicaffeoylquinic acid significantly reduced melanin synthesis and tyrosinase activit...
Source: Evidence-based Complementary and Alternative Medicine - August 18, 2016 Category: Complementary Medicine Tags: Evid Based Complement Alternat Med Source Type: research
Development of immunosensors based on optical waveguide lightmode spectroscopy (OWLS) technique for determining active substance in herbs
Publication date: February 2017 Source:Sensors and Actuators B: Chemical, Volume 239 Author(s): Nóra Adányi, Krisztina Majer-Baranyi, Mária Berki, Béla Darvas, Baomin Wang, István Szendrő, András Székács For the quick and reliable quantification of special active substances derived from herbs, a new type of immunosensor based on optical waveguide lightmode spectroscopy (OWLS) detection was investigated. Artemisinin, an antimalarial drug derived from the sweet wormwood plant Artemisia annua is a sesquiterpene lactone endoperoxide, and it is distilled from the dried leaves or flower clusters of A. annua. Nu...
Source: Sensors and Actuators B: Chemical - August 12, 2016 Category: Chemistry Source Type: research
Sucrose-enhanced biosynthesis of medicinally important antioxidant secondary metabolites in cell suspension cultures of Artemisia absinthium L.
In this study, we investigated the accumulation of biomass and antioxidant secondary metabolites in response to different carbohydrate sources (sucrose, maltose, fructose and glucose) and sucrose concentrations (1, 3, 5, 7 and 9 %). Moreover, the effects of 3 % repeated sucrose feeding (day-12, -18 and -24) were also investigated. The results showed the superiority of disaccharides over monosaccharides for maximum biomass and secondary metabolites accumulation. Comparable profiles for maximum biomass were observed in response to sucrose and maltose and initial sucrose concentrations of 3 and 5 %. Maximum total phenolic ...
Source: Bioprocess and Biosystems Engineering - August 10, 2016 Category: Biomedical Engineering Authors: Ali M, Abbasi BH, Ahmad N, Ali SS, Ali S, Ali GS Tags: Bioprocess Biosyst Eng Source Type: research
Lipids from the Aerial Part of Artemisia absinthium
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - August 10, 2016 Category: Chemistry Source Type: research
Functional Analysis of Amorpha-4,11-Diene Synthase (ADS) Homologs from Non-Artemisinin-Producing Artemisia Species: The Discovery of Novel Koidzumiol and (+)-{alpha}-Bisabolol Synthases
In this study, we examined genes highly homologous to ADS, the first committed gene in the pathway, in 13 Artemisia species. We detected ADS homologs in A. absinthium, A. kurramensis and A. maritima. We analyzed the enzymatic functions of all of the ADS homologs after obtaining their cDNA. We found that the ADS homolog from A. absinthium exhibited novel activity in the cyclization of farnesyl pyrophosphate (FPP) to koidzumiol, a rare natural sesquiterpenoid. Those from A. kurramensis and A. maritima showed similar, but novel, activities in the cyclization of FPP to (+)-α-bisabolol. The unique functions of the novel s...
Source: Plant and Cell Physiology - August 1, 2016 Category: Cytology Authors: Muangphrom, P., Seki, H., Suzuki, M., Komori, A., Nishiwaki, M., Mikawa, R., Fukushima, E. O., Muranaka, T. Tags: Regular Papers Source Type: research
Sources of variability of wormwood (Artemisia absinthium L.) essential oil
Publication date: Available online 26 July 2016 Source:Journal of Applied Research on Medicinal and Aromatic Plants Author(s): Huong Thi Nguyen, Zámboriné Éva Németh Artemisia absinthium L. is a medicinal and aromatic bitter herb frequently used in traditional medicine as antimicrobial agent since ancient times. The important active constituents, essential oil and bitter substances have attracted the interest of several researchers and producers throughout the world. The use of this herb as a source of natural products and the alcoholic beverage absinthe has recently experienced a revival after a period of pro...
Source: Journal of Applied Research on Medicinal and Aromatic Plants - July 26, 2016 Category: Complementary Medicine Source Type: research
Chemical composition, insecticidal and physiological effect of methanol extract of sweet wormwood (Artemisia annua L.) on Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae)
10.1080/15569543.2016.1203336Malahat Mojarab-Mahboubkar (Source: Toxin Reviews)
Source: Toxin Reviews - July 7, 2016 Category: Toxicology Authors: Malahat Mojarab-MahboubkarJalal Jalali Sendi Source Type: research
Plant biotechnology: Tobacco plants make malaria drug
Nature 534, 7609 (2016). doi:10.1038/534592b
Inexpensive fast-growing plants have been transformed into factories that churn out an important antimalarial drug.Artemisinin is the only proven malaria treatment, with hundreds of millions of doses taken every year. The sweet wormwood plant (Artemisia annua) produces a precursor of the compound, (Source: Nature)
Source: Nature - June 28, 2016 Category: Research Tags: Research Highlights Source Type: research
Biophysical characteristics of proteins and living cells exposed to the green tea polyphenol epigallocatechin-3-gallate (EGCg): review of recent advances from molecular mechanisms to nanomedicine and clinical trials.
Abstract
Herbs and traditional medicines have been applied for thousands of years, but researchers started to study their mode of action at the molecular, cellular and tissue levels only recently. Nowadays, just like in ancient times, natural compounds are still determining factors in remedies. To support this statement, the recently won Nobel Prize for an anti-malaria agent from the plant sweet wormwood, which had been used to effectively treat the disease, could be mentioned. Among natural compounds and traditional Chinese medicines, the green tea polyphenol epigallocatechin gallate (EGCg) is one of the ...
Source: European Biophysics Journal : EBJ - June 15, 2016 Category: Physics Authors: Peter B, Bosze S, Horvath R Tags: Eur Biophys J Source Type: research
Flora Palinologica Italiana, Sezione Aeropalinologica — S 187: Artemisia absinthium L
(Source: Aerobiologia)
Source: Aerobiologia - June 10, 2016 Category: Environmental Health Source Type: research
Artesunate attenuated progression of atherosclerosis lesion formation alone or combined with rosuvastatin through inhibition of pro-inflammatory cytokines and pro-inflammatory chemokines
Conclusion AS attenuated progression of atherosclerosis lesion formation alone or combined with rosuvastatin through anti-inflammatory effect, resulting in down-regulation of TNF-α and IL-6, and further down-regulating IL-8 and MCP-1 expressions in aorta of WD fed ApoE−/− mice. Rosuvastatin combined with artesunate could more effectively attenuate the progression of atherosclerosis lesions than when treated by one of them, demonstrating that lipid-lowering agents combined with anti-inflammatory agents could provide the greater benefit for cardiovascular disease patients. Artesunate is worth further investigating as a ...
Source: Phytomedicine - June 6, 2016 Category: Drugs & Pharmacology Source Type: research
Sunflower seed allergy.
We present an interesting case of a 40-year-old male patient, admitted to hospital due to shortness of breath and urticaria, both of which appeared shortly after the patient ingested sunflower seeds. Our laryngological examination revealed swelling of the pharynx with retention of saliva and swelling of the mouth and tongue. During diagnostics, 2 months later, we found that skin prick tests were positive to mugwort pollen (12/9 mm), oranges (6/6 mm), egg protein (3/3 mm), and hazelnuts (3/3 mm). A native prick by prick test with sunflower seeds was strongly positive (8/5 mm). Elevated concentrations of specific IgE against...
Source: International Journal of Immunopathology and Pharmacology - May 27, 2016 Category: Allergy & Immunology Tags: Int J Immunopathol Pharmacol Source Type: research
Prenatal heat stress reduces male anogenital distance at birth and adult testis size, which are rescued by concurrent maternal artemisia absinthium consumption
Publication date: Available online 10 March 2016 Source:Journal of Thermal Biology Author(s): A.T. Desaulniers, W.R. Lamberson, T.J. Safranski Boars from sows with elevated plasma cortisol during pregnancy have shorter anogenital distance (AGD), a trait associated with subfertility. Since gestating sows often experience summer heat stress (HS), a mouse model was used to evaluate the effect of prenatal HS on AGD and fertility; efficacy of the heat stress-mitigating supplement artemisia absinthium (AB) was also evaluated. Dams were treated from d 8–18 of gestation, residing in ambient temperatures from 0700 – 1...
Source: Journal of Thermal Biology - March 11, 2016 Category: Biology Source Type: research
Comparative Study of Composition, Antioxidant, and Antimicrobial Activities of Essential Oils of Selected Aromatic Plants from Balkan Peninsula
The objective of the present study to perform a comparative analysis of the chemical composition, antioxidant, and antimicrobial activities of the essential oils of plant species Hyssopus officinalis, Achillea grandifolia, Achillea crithmifolia, Tanacetum parthenium, Laserpitium latifolium, and Artemisia absinthium from Balkan Peninsula. The chemical analysis of essential oils was performed by using gas chromatography and gas chromatography-mass spectrometry. Monoterpenes were dominant among the recorded components, with camphor in T. parthenium, A. grandifolia, and A. crithmifolia (51.4, 45.4, and 25.4 %, respectively)...
Source: Planta Medica - February 18, 2016 Category: Drugs & Pharmacology Authors: Stanković, NemanjaMihajilov-Krstev, TatjanaZlatković, BojanMatejić, JelenaStankov Jovanović, VesnaKocić, BranislavaČomić, Ljiljana Tags: Original Papers Source Type: research
