Publications by authors named "Daniela Hanganu"

The species of the genus present important medicinal potential according to their traditional uses. However, few studies aim to sustain this fact by scientific evidence. The present study aimed to explore the phytochemical profile and investigate the antioxidant, antimicrobial and antiproliferative potential of subsp.

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Nowadays, there is an increasing interest in the study of medicinal and aromatic plants, due to their therapeutic properties that correlate with the presence of different active compounds. species (sp.) are aromatic plants that belong to the Lamiaceae family, originating from North America and East Asia.

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Nutraceuticals represent an emerging and dynamic scientific field due to their important potential in integrated healthcare through nutritional and medicinal approaches that interact and complement each other mutually. In an attempt to find new sources for such preparations, the present research focuses on the species (L.) Pers.

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Considering that fruits have been underutilized despite their tremendous potential, this study aimed to correlate the in vitro antioxidant, antibacterial and cell-protective abilities of fruit extracts derived from Romanian cultivars with their phytochemical composition. Therefore, following the preparation of ethanolic and carotenoid extracts, phytochemical screening was performed using UV-Vis and HPLC-DAD-ESI-MS methods. The antioxidant activity was analyzed using DPPH and FRAP tests.

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Article Synopsis
  • Alzheimer's disease (AD) is the leading cause of dementia among middle-aged and elderly populations, highlighting the need for potential treatments.
  • A study analyzed the effects of a leaf extract (BPE) rich in polyphenols and flavonoids on rats with induced AD, assessing both behavioral changes and biochemical markers of oxidative stress and inflammation.
  • Results indicated that BPE reduced brain inflammation, lipid peroxidation, and improved cognitive function, suggesting its potential therapeutic benefits for AD.
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This study aimed to investigate the polyphenolic composition and antioxidant and antimicrobial potential of six Romanian Stachys species: , , , , , and . The LC-MS/MS method was used to analyze the polyphenolic profile, while the phenolic contents were spectrophotometrically determined. The antioxidant activity was evaluated using the following methods: DPPH, FRAP, nitrite-induced autooxidation of hemoglobin, inhibition of cytochrome -catalyzed lipid peroxidation, and electron paramagnetic resonance spectroscopy.

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The genus is part of the family and is native to North America, while one species, (), is native to East Asia. A review on the phytochemistry and bioactivity of genus was last performed in 2014. Since then, a lot of progress has been made on the characterization of the phytochemical and pharmacological profiles of species.

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L. is characterized by an increased quantity of bioactive compounds, namely polyphenols, monoterpenes, organic acids, vitamin C and lipophilic compounds such as carotenoids, being anciently used in the treatment of various diseases. This paper's objectives were to characterize the phytochemical profile of L.

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The present research investigated the in vivo anti-inflammatory and cardioprotective activities, as well as the antioxidant potential of tincture (TOT), in relation to the polyphenolic composition. Chromatographic and spectrophotometric techniques were used to determine the polyphenolic profile of TOT and the antioxidant activity was preliminarily assessed in vitro by DPPH• and FRAP spectrophotometric methods. The in vivo anti-inflammatory and cardioprotective activities were studied in rat turpentine-induced inflammation and in rat isoprenaline-induced myocardial infarction (MI) models.

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Diabetes mellitus and high-fat diets trigger the mechanisms that alter the walls of blood vessels. Gold nanoparticles, as new pharmaceutical drug delivery systems, may be used in the treatment of different diseases. In our study, the aorta was investigated via imaging after the oral administration of gold nanoparticles functionalized with bioactive compounds derived from fruit extract (AuNPsCM) in rats with a high-fat diet and diabetes mellitus.

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Article Synopsis
  • The study examined the antioxidant, antimicrobial, and cytotoxic properties of hydroalcoholic extracts from three L. cultivars, focusing on their polyphenolic content.
  • Key methods included spectrophotometry and LC-MS to identify and quantify polyphenols, along with DPPH and FRAP assays for antioxidant activity and various methods for assessing antimicrobial efficacy.
  • Results indicated high levels of polyphenols, particularly rosmarinic acid, along with significant antioxidant and antimicrobial effects, especially against Gram-positive bacteria, and selective toxicity towards colorectal cancer cells, suggesting the potential of these cultivars for further research.
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Three individual hydroalcoholic extracts derived from leaves, root, bark, and the resulting herbal mixture (HM) were assessed for the phytochemical profile as well as for antibacterial and cytotoxic potential. The chemical composition of the individual extracts and of their mixture was analyzed by chromatographical (LC-MS) and spectrophotometrical methods. The antimicrobial properties were evaluated by using the agar-well diffusion and the broth microdilution assays, whereas the potential cytotoxicity was investigated on human keratinocyte cell line by MTT method and apoptosis test.

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L. is a species that is widely known for its culinary and medicinal uses. The purpose of the present study consisted of the evaluation of the antiproliferative and antimicrobial effects of -loaded liposomes (L-R).

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L., an evergreen tree, was known until recently due to its high concentration of toxic compounds. The purpose of the present study was to focus on the only non-poisonous part, the red arils, which have recently been described as an important source of various bioactive constituents.

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This study aimed to investigate the antioxidant, antimicrobial, and cytotoxic potential of ethanolic extracts obtained from Gentiana asclepiadea L. and Inula helenium L. roots, in relation to their chemical composition.

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The aim of the present study was to investigate the polyphenolic profile and the anti-inflammatory and anti-nociceptive activities of four traditionally used medicinal plants from Burkina Faso: Parkia biglobosa, Detarium microcarpum, Vitellaria paradoxa and Sclerocarya birrea. The analysis of the main phenolic compounds was performed by the HPLC-UV-MS method. The anti-inflammatory effect of the aqueous bark extracts was investigated by the λ-carrageenan-induced rat paw edema test.

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Soy. Will. is a species belonging to the Papaveraceae family, being widespread in East-Central and Southern Europe.

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Article Synopsis
  • - The study compared two polyphenolic-enriched extracts from the *Lamiaceae* family, one sourced from cultivated plants and another from wild flora, focusing on their effects on human umbilical vein endothelial cells under normal and high glucose conditions.
  • - The extracts were analyzed for their specific compounds, revealing significant levels of rosmarinic acid, luteolin, kaempferol, and apigenin, which may play a role in protective cellular mechanisms.
  • - Results indicated that these extracts significantly reduced oxidative stress and inflammatory responses in hyperglycemic conditions, suggesting their potential as protective agents against endothelial cell damage in diabetes.
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Article Synopsis
  • L. (common lilac) is a well-known ornamental plant that may also contain bioactive compounds with significant therapeutic benefits, which have not been extensively studied.
  • The study analyzed the chemical composition of ethanolic extracts from the flowers, leaves, bark, and fruit of L. using advanced chromatographic and spectral methods while also testing their antioxidant and cytotoxic effects.
  • Results showed that extracts from flowers and leaves had abundant beneficial compounds and exhibited notable antioxidant and anti-cancer properties against specific tumor cell lines.
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  • L. is a well-known species valued for its medicinal properties and is also used in the food and cosmetic industries.
  • This study focuses on a tincture made from fresh young shoots, aiming to explore its hepatoprotective effects and analyze its composition using various chemical methods like HPLC-UV-MS and GC-MS.
  • The findings reveal that the tincture contains significant amounts of polyphenols and terpenes, showcasing strong antioxidant activity and demonstrating hepatoprotective effects through this antioxidant mechanism in tests conducted on rats.
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The present study analyzed the methanol extract and tincture obtained from the spontaneous Romanian species, in order to evaluate polyphenols content and some biological properties. Chromatographic and spectrophotometric methods were used for the analysis of polyphenols and the antioxidant capacity was assessed in vitro with DPPH (2,2-diphenyl-picrylhydrazil) and FRAP (ferric-reducing antioxidant power) tests. The cardio-protective effects of tincture on myocardial ischemia induced by isoprenaline and nephroprotection on renal failure induced by gentamicin were evaluated on rats.

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The effects of two lyophilized extracts obtained from the aerial parts of Willd. and harvested from wild flora (TMW) and obtained from culture (TMC) were evaluated in Wistar rats with experimentally induced hyperglycemia. The hyperglycemia was induced by streptozotocin (STZ) administration and the obtained results were evaluated in comparison for TMW and TMC.

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The aim of the present study was to establish the best experimental conditions that lead to the extracts richest in polyphenolic compounds obtained from pomace and canes of . In this regard, a D-Optimal design of experiments (DoE) method was applied to investigate the extraction process parameters from each of three materials: red pomace (RP), white pomace (WP) and canes (C). The input variables were the extraction temperature and the ethanol ratio and as response, the total polyphenols content (TPC) was determined.

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Willd. is a Lamiaceae species spread in a large variety of habitats worldwide. The aim of the present research was to analyse two different samples belonging to this species, one obtained from the spontaneous flora and one from culture.

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L. is the only species found in Romanian flora, being known as a remedy for inflammatory pathologies or for its hepatoprotective and adaptogen activities. The present investigation studied the flavonoid composition and antioxidant activities of the aerial parts of this species.

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