The exquisite sensitivity of Raman spectroscopy for detecting biomolecular changes in skin cancer has previously been explored; however, this mostly required analysis of excised tissue samples using bulky, immobile laboratory instrumentation. In this study, the technique was translated for clinical use with a portable Raman system and customized fiber optic probe and applied to differentiation of skin cancers from benign lesions and inflammatory dermatoses. The aim was to provide an easy-to-use, easy-to-manage assessment tool for clinicians to use in their daily patient examination routine to perform rapid Raman measurements of skin lesions in vivo.
View Article and Find Full Text PDFIn spite of the progress in treatment strategies, cancer remains a major cause of death worldwide. Therefore, the main challenge should be the early diagnosis of cancer and the design of an optimal therapeutic strategy to increase the patient's life expectancy as well as the continuation of the search for increasingly active and selective molecules for the treatment of different forms of cancer. In the recent decades, research in the field of natural compounds has increasingly shifted towards advanced and molecular level understandings, thus leading to the development of potent anti-cancer agents.
View Article and Find Full Text PDFspecies are widely distributed in central and southern Europe, east Africa, southwest Asia, and America. Several species are known for edible fruits, especially and . These delicious fruits, characterized by their remarkable nutritional and biological values, are widely used in traditional medicine.
View Article and Find Full Text PDFIn this work, we conducted a comparative phytochemical, chemotaxonomic, and biological study of essential oils (EOs) and extracts (ethyl acetate and methanol) obtained from the leaves of and . The dominant compounds of EO, analysed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS), are α-pinene, sabinene, manoyl oxide, and germacrene D, whereas α-pinene, limonene, (,)-farnesol, β-pinene, and γ-cadinene are the most representative volatiles of EOs. A multivariate analysis of EOs, included a selection of literature data comparing our samples to samples of // from the Mediterranean area, was performed.
View Article and Find Full Text PDFEven though is one of the most known genera of the Lamiaceae family, some traditionally used species are still now less investigated. To that end, the present study aims to evaluate the chemical profile and the potential bioactivities of extracts and related fractions obtained from the endemic sage L. by applying a traditional extraction method such as Soxhlet apparatus (SHS) and the rapid solid-liquid dynamic extraction (RSLDE) by Naviglio extractor (SHN), considered among the "green techniques" operating at room temperature and with minimum solvent employment and minimum energy.
View Article and Find Full Text PDFL. (sage) is one of the most appreciated plants for its plethora of biologically active compounds. The objective of our research was a comparative study, in the Mediterranean context, of chemical composition, anticholinesterases, and antioxidant properties of essential oils (EOs) from sage collected in three areas (S1-S3) of Southern Italy.
View Article and Find Full Text PDFThe chemical composition of the essential oil from Spenn. collected in Calabrian Ionian (R1) and Tyrrhenian (R2) coast (Southern Italy) was examined by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Essential oils are mainly characterized by monoterpene hydrocarbons (39.
View Article and Find Full Text PDFThis study aims at investigating the contribution of two classes of compounds, flavonoids and iridoids, to the bioactivity of L. leaves and fruits. The impact of different extraction procedures on phytochemicals content and hypoglycemic, antioxidant, and nitric oxide (NO) inhibitory activities of fresh and dried plant materials was investigated.
View Article and Find Full Text PDFEdible flowers consumption has increased in recent years due to their rich content of healthy phytochemicals. The aim of this study was to analyse the chemical profile of L. flowers, and to explore their antioxidant and hypoglycaemic properties.
View Article and Find Full Text PDFThis study aimed at evaluating and comparing the chemical profile as well as the antityrosinase and antioxidant activities of ethanol (EtOH) and methanol (MeOH) extracts of L. (Adoxaceae) flowers and leaves in order to discover new candidates for food additives and cosmetic and pharmaceutical products. For this purpose, a novel lower-melting-point ethylene-chlorotrifluoroethylene (LMP ECTFE) nanofiltration (NF) membrane was employed in order to produce the concentrated fractions of .
View Article and Find Full Text PDFThe present study aimed to determine the chemical composition, antioxidant effects and antitumor properties of a methanol extract of Anchusa azurea Mill. (Boraginaceae) aerial parts against four tumour cell lines (MCF-7, MDA-MB-231, RKO, and R2C). The antioxidant effects were assessed by using β-carotene bleaching, 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 2,2-diphenyl-1-picrylhydrazyl (DPPH), and ferric reducing ability power (FRAP) tests.
View Article and Find Full Text PDFCurr Drug Discov Technol
September 2021
Natural compounds have always played a key role in drug discovery. Anthocyanins are secondary metabolites belonging to the flavonoids family responsible for the purple, blue, and red colour of many vegetables and fruits. These phytochemicals have attracted the interest of researchers for their important implications in human health and for their use as natural colorants.
View Article and Find Full Text PDFThe aim of this work is to investigate the in vitro acetylcholinesterase (AChE) and butyrycholinesterase (BChE) inhibitory activities of essential oils obtained by hydrodistillation from the leaves of and in relation to their composition, analysed by Gas Chromatography⁻Flame Ionization Detector (GC-FID) and Gas Chromatography-Mass Spectrometry (GC-MS) analyses, at different times. Moreover, considering the role of free radicals in the progression of neurodegenerative disorders, the antioxidant properties of essential oils were investigated by using, 2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), 2,2-diphenyl-1-picrylhydrazyl (DPPH), and β-carotene bleaching tests. The relative antioxidant capacity index (RACI) was used to achieve more comprehensive comparison between analysed antioxidant effects of essential oils.
View Article and Find Full Text PDFAims: The bioactivities of Santolina corsica Jord. & Fourr. n-hexane (EHS) and methanol (EMS) extracts were evaluated in relation to their chemical profile.
View Article and Find Full Text PDFFor the first time the chemical profile, physico-chemical parameters, inhibition of carbohydrate hydrolysing enzymes associated with type 2 diabetes, and radical scavenging properties of Sambucus nigra L. (elderberry) juice treated by nanofiltration (NF) were investigated. Three commercial NF membranes with different molecular weight cut-off (MWCO) (400 and 1000 Da) and polymeric material (composite fluoro-polymer and polyethersulphone) were tested.
View Article and Find Full Text PDFTyrosinase is a multifunctional copper-containing oxidase which catalyses the oxidation of tyrosine to produce melanin. The alteration in melanin biosynthesis occurs in many diseases. The pigment has a protecting role against skin photo-carcinogenesis, but anomalous melanin pigmentation is an aesthetic problem in human beings.
View Article and Find Full Text PDFIn this study, we investigated for the first time the anti-proliferative and antioxidant properties of and . The aerial parts were extracted by maceration with -hexane, dichloromethane, and methanol. MPLC, GC, and GC-MS were used for the phytochemical study.
View Article and Find Full Text PDFGlycyrrhiza glabra cultivation and harvesting produces substantial quantities of aerial parts as waste. With the aim to prospect an innovative valorization of these byproducts, the aerial parts were harvested in May and October and analyzed for their chemical profile, antioxidant properties, and effects on viability of five cancer cell lines. Pinocembrin was the main constituent.
View Article and Find Full Text PDFThe aim of the present study was to investigate the in vitro antioxidant and antitumor effects of Salvia fruticosa Mill subsp. thomasii (Lacaita) Brullo, Guglielmo, Pavone & Terrasi (Lamiaceae). The aerial parts were extracted by maceration with methanol.
View Article and Find Full Text PDFRuta chalepensis L. (Rutaceae) leaf extract was investigated for its chemical profile and antioxidant and hypoglycaemic properties. The antioxidant effects were investigated by 2,2-diphenyl-1-picrylhydrazyl (DPPH), β-carotene bleaching, and metal chelating activity assays.
View Article and Find Full Text PDFAntiinflamm Antiallergy Agents Med Chem
August 2018
Background: Salvia species are known for their biological properties in many countries and might potentially provide novel therapeutic agents. This review provides an overview of the available literature on the anti-inflammatory and antioxidant effects of Salvia species.
Methods: Using bibliographic databases, particularly PubMed, this review aims to add new information to the list of Salvia species, including S.
Studies have proven the relationship between cutaneous vasculature abnormalities and dermatological disorders, but to image vasculature noninvasively
We demonstrate noninvasive structural and microvascular contrast imaging of human skin in vivo, using phase difference swept source OCT angiography (pOCTA). The pOCTA system employs an akinetic, all-semiconductor, highly phase-stable swept laser source which operates at 1340 nm central wavelength, with 37 nm bandwidth (at 0 dB region) and 200 kHz A-scan rate. The phase sensitive detection does not need any external phase stabilizing implementations, due to the outstanding high phase linearity and sweep phase repeatability within 2 mrad.
View Article and Find Full Text PDFSechum edule peel, leaves and pulp were investigated for their chemical composition (total phenol, flavonoid, carotenoid and vitamin C content), and for antioxidant activity and carbohydrate-hydrolysing enzymes (α-amylase and α-glucosidase) inhibition. In order to evaluate the incidence of cooking process on retention of healthy phytochemicals, the pulp was subjected to different treatments (grill roasting, domestic oven baking, microwave cooking, blanching and steaming). Cooking processes reduced the total phenol content (58.
View Article and Find Full Text PDFThe study evaluated the fatty acids and the biogenic amines (BAs) in 'Nduja of Spilinga stored in different packaging materials (i.e. natural casing under vacuum, glass jar, aluminum tube and OVTENE®) during 15months of shelf-life.
View Article and Find Full Text PDF