The polyphenol compositions of Thymus × citriodorus and Thymus vulgaris extracts as obtained by exhaustive hydroethanolic (HE) extraction and aqueous decoction (AD) were compared. In addition, their compositions and bioactivities were compared to those of Thymus pulegioides and Thymus mastichina, grown under the same edaphoclimatic conditions, and Thymus carnosus. Rosmarinic acid was the most abundant polyphenol followed by luteolin-hexuronide, salvianolic acids I and K.
View Article and Find Full Text PDFOral cancer squamous cell carcinoma (OCSCC) mainly affects individuals aged between 50 and 70 years who consume tobacco and alcohol. Tobacco smoke contains hundreds of known toxic and carcinogenic molecules, and a few studies have sought to verify the relationship of such trace elements as risk or prognostic factors for head and neck cancer. We obtained 78 samples of tumor tissues from patients with OCSCC, and performed a qualitative elemental characterization using the micro X-Ray Fluorescence technique based on synchrotron radiation.
View Article and Find Full Text PDFPurpose: To investigate the expression of upstream and downstream targets of mTOR signalling pathway in the secretory carcinoma of salivary gland origin (SCsg).
Methods: Seven cases of secretory carcinoma diagnosed by a combination of immunohistochemistry and/or molecular testing were retrieved from our pathology files. For comparison purposes, 27 other salivary carcinomas were selected.
subsp. is an endemic Portuguese plant belonging to the species. Although is commonly used as a condiment and as a medicinal herb, a detailed description of the polyphenol composition of hydroethanolic (HE) and aqueous decoction (AD) extracts is not available.
View Article and Find Full Text PDFBackground: Most of our understanding on the social behavior and genomics of bees and other social insects is centered on the Western honey bee, Apis mellifera. The genus Apis, however, is a highly derived branch comprising less than a dozen species, four of which genomically characterized. In contrast, for the equally highly eusocial, yet taxonomically and biologically more diverse Meliponini, a full genome sequence was so far available for a single Melipona species only.
View Article and Find Full Text PDFRaspberries are rich in polyphenols but the impact of organic versus conventional agricultural practices on their phytochemical composition is not well known. This study aimed to analyse and compare the polyphenol accumulation in raspberries grown under both agricultural practices in the same edaphoclimatic conditions. Two raspberry cultivars 'Kweli' and 'Tulameen' were used.
View Article and Find Full Text PDFChanging the immune responses to allergens is the cornerstone of allergen immunotherapy. Allergen-specific immunotherapy that consists of repeated administration of increasing doses of allergen extract is potentially curative. The major inconveniences of allergen-specific immunotherapy include failure to modify immune responses, long-term treatment leading to non-compliance and the potential for developing life-threating anaphylaxis.
View Article and Find Full Text PDFFunctional foods have created an open environment for the development of new solutions to health-related issues. In celiac disease, there is still no therapeutic alternative other than the observance of a gluten-free diet. In this context, we developed a wheat flour enriched in l-theanine aimed to be a potential alternative to the gluten-free diet.
View Article and Find Full Text PDFBackground: An Investigator Global Assessment (IGA) is recommended by health agencies for drug registration in atopic dermatitis (AD). Current IGA scales lack standardization.
Objectives: To develop an IGA scale, training module, and clinical certification examination for use in AD trials; establish content validity; and assess reliability.
Ann Diagn Pathol
June 2020
Objective: This study seeks to investigate immunohistochemical parameters that could distinguish non-aggressive Central giant cell granuloma (CGCG) from aggressive CGCG, two groups of lesions which differ in their clinical and radiographic features and prognosis.
Material And Methods: 12 cases of non-aggressive CGCG and 11 cases of aggressive CGCG were investigated and associated the immunohistochemical expression of macrophages (CD68 and CD163), blood vessels (CD34 and CD105), lymphatic vessels (D2-40) and regulator proteins (p63 and Ki-67). Clinical and radiographic features were also studied.
In a search for new antitrypanosomal agents in the Brazilian flora, the ethanol extract of the xylopodium from (Lauraceae) exhibited activity against the epimastigote forms of the etiological agent of Chagas disease. Bioassay-guided chromatographic fractionation of the ethanol extract afforded three butanolides, isoobtusilactone A (), epilitsenolide C2 (), and epilitsenolide C1 (). Butanolides and were more active against epimastigotes than the reference drug benznidazole (by 8.
View Article and Find Full Text PDFBackground: Visual search abilities are essential to everyday life activities and are known to be affected in Alzheimer's disease (AD). However, little is known about visual search efficiency in mild cognitive impairment (MCI), a transitive state between normal aging and dementia. Eye movement studies and machine learning methods have been recently used to detect oculomotor impairments in individuals with dementia.
View Article and Find Full Text PDFBr J Dermatol
December 2020
Background: Valid patient-reported outcome (PRO) measures are required to evaluate alopecia areata (AA) treatments.
Objectives: To develop a content-valid and clinically meaningful PRO measure to assess AA scalp hair loss with scores comparable with the five-response-level Alopecia Areata Investigator Global Assessment (AA-IGA™).
Methods: A draft PRO measure was developed based on input from 10 clinical experts in AA.
Context: Electro-convulsive therapy (ECT) is the most effective treatment for treatment resistant mood disorders and catatonia. ECT also appears to be an effective treatment in combination with clozapine in the context of treatment resistant schizophrenia spectrum disorders. Although increasingly codified (guidelines on indications, contraindications, methods of implementation), the practice of ECT still lacks consensual protocols.
View Article and Find Full Text PDFJMIR Rehabil Assist Technol
February 2020
Background: Many rehabilitation clinics adopted serious games to support their physiotherapy sessions. Serious games can monitor and provide feedback on exercises and are expected to improve therapy and help professionals deal with more patients. However, there is little understanding of the impacts of serious games on the actual work of physiotherapists.
View Article and Find Full Text PDFReports have shown that the onset of diabetes mellitus (DM) in patients previously diagnosed with asthma decreases asthmatic symptoms, whereas insulin aggravates asthma. The present study evaluated the modulatory effect of insulin on the development of allergic airway inflammation in diabetic mice. To evaluate the effects of relative insulin deficiency, an experimental model of diabetes was induced by a single dose of alloxan (50 mg/kg, i.
View Article and Find Full Text PDFPure red cell aplasia (PRCA) is a rare bone marrow failure characterized by a progressive normocytic anemia and reticulocytopenia without leukopenia and thrombocytopenia. It can be associated with various hematological disorders but exceedingly rarely with angioimmunoblastic T-cell lymphoma (AITL). We report the case of a 72-year-old woman with PRCA associated with AITL.
View Article and Find Full Text PDFFemtosecond X-ray absorption spectroscopy (XAS) is a powerful method to investigate the dynamical behavior of a system after photoabsorption in real time. So far, the application of this technique has remained limited to large-scale facilities, such as femtosliced synchrotrons and free-electron lasers (FEL). In this work, we demonstrate femtosecond time-resolved soft-X-ray absorption spectroscopy of liquid samples by combining a sub-micrometer-thin flat liquid jet with a high-harmonic tabletop source covering the entire water-window range (284-538 eV).
View Article and Find Full Text PDFMolecules
February 2020
Natural triterpenes exhibit a wide range of biological activities. Since this group of secondary metabolites is structurally diverse, effects may vary due to distinct biochemical interactions within biological systems. In this work, we investigated the anticancer-related activities of the quinone-methide triterpene maytenin and its derivative compound 22-β-hydroxymaytenin, obtained from roots cultivated in vitro.
View Article and Find Full Text PDF4-Ethylphenol (4-EP) and 4-ethylguaiacol (4-EG) formation in red wines by Dekkera/Brettanomyces yeasts reduce significantly wine consumer's acceptability. Polymers with specific adsorption for volatile phenols (VPs) could be a valuable tool for wine producers for removing this negative sensory defect. In this work, a new molecularly imprinted polymer (MIP) was synthesised using ethylene glycol dimethacrylate (EDMA) as cross-linker and ethylene glycol methyl ether acrylate as functional monomers.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
April 2020
4,5-Bis(phtalimidomethyl)acridine (L) was studied as a chemosensor for metal ions in alcoholic matrices and showed to be selective for Al, through a linear fluorescence enhancement of 230% in the concentration range of 10-70 μmol L. Benesi-Hildebrand and Job's formalisms indicated the formation of a 1:1 (Al:L) complex with a binding constant of 6.30 × 10 L mol.
View Article and Find Full Text PDFBackground: Baricitinib, an oral selective Janus kinase 1 and 2 inhibitor, effectively reduced atopic dermatitis (AD) severity in a phase II study with concomitant topical corticosteroids.
Objectives: To evaluate the efficacy and safety of baricitinib in patients with moderate-to-severe AD who had an inadequate response to topical therapies.
Methods: In two independent, multicentre, double-blind, phase III monotherapy trials, BREEZE-AD1 and BREEZE-AD2, adults with moderate-to-severe AD were randomized 2 : 1 : 1 : 1 to once-daily placebo, baricitinib 1 mg, 2 mg, or 4 mg for 16 weeks.
The ionization energy of liquid water is one of its most fundamental properties, an important benchmark for first-principles electronic-structure calculations and a crucial reference in the growing field of liquid-phase photoelectron spectroscopy. Despite this significance, a consensus on its value appears to be missing in the literature. Therefore, we use a monochromatized high-harmonic light source to perform detailed measurements of the ionization energy of liquid water in the presence of a tunable bias voltage applied to the liquid jet.
View Article and Find Full Text PDFA new acridine-based chemosensor was prepared, characterized and investigated for quantitative detection of Hg ions in aqueous solutions. DFT and TD-DFT calculations showed that formation of a coordination bond between Hg and the thiolate-sensor accounts for the fluorescence quenching, forming [HgLCl] as the most stable species. Limit of detection and limit of quantification were as low as 4.
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