Publications by authors named "Yris Maria Fonseca Bazzo"

There are inconclusive claims in the scientific literature that the species , widely distributed throughout the Brazilian territory, may produce phytocannabinoids, potentially serving as an alternative to . In this study, we conducted a comprehensive investigation to assess the presence of phytocannabinoids in two samples collected in the Midwest region of Brazil. In trying to detect cannabinoids in , a recommended cannabis screening test was employed, the Fast Blue BB Salt (FBBBS) colorimetric assay, followed by thin-layer chromatography (TLC) and instrumental techniques: high-performance liquid chromatography coupled to diode array detector (HPLC-DAD) and gas chromatography coupled to mass spectrometry (GC-MS).

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Gene therapies are designed to address the root cause of disease. As scientific understanding of disease prevention, diagnosis, and treatment improves in tandem with technological innovation, gene therapies have the potential to become safe and effective treatment options for a wide range of genetic and nongenetic diseases. However, as the medical scope of gene therapies expands, consideration must be given to those who will benefit and what proactive steps must be taken to widen development and access potential, particularly in regions carrying a high disease burden.

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To review the available literature about heterologous expression of fungal L-asparaginase (L-ASNase). A search was conducted across PubMed, Science Direct, Scopus and Web of Science databases; 4172 citations were identified and seven articles were selected. The results showed that heterologous expression of fungal L-ASNase was performed mostly in bacterial expression systems, except for a study that expressed L-ASNase in a yeast system.

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The search for new drug-producing microorganisms is one of the most promising situations in current world scientific scenarios. The use of molecular biology as well as the cloning of protein and compound genes is already well established as the gold standard method of increasing productivity. Aiming at this increase in productivity, this work aims at the cloning, purification and in silico analysis of l-asparaginase from in Komagataella phaffii ( protein expression systems.

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  • Kraenzl. R.S.Oliveira & Dutilh is a unique plant from the Brazilian savannah that shows promise for drug development, particularly for treating Alzheimer's disease.
  • The study demonstrated that the ethanol extract from its leaves can activate important nuclear receptors (PPAR-α and PPAR-γ) and inhibit the enzyme acetylcholinesterase, which is crucial in managing Alzheimer's symptoms.
  • The research also identified key compounds in the plant, such as lycorine and rutin, and highlighted its antioxidant properties through various tests.
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Inhibition of systemic inflammation has been a beneficial strategy in treating several non-communicable diseases, which represent one of the major causes of mortality in the world. The Peroxisome Proliferator-Activated Receptors (PPAR) are interesting pharmacological targets, since they can act both through the metabolic and anti-inflammatory pathways. L.

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species are the main fungal agents causing infectious conditions in hospital patients. The development of new drugs with antifungal potential, increased efficacy, and reduced toxicity is essential to face the challenge of fungal resistance to standard treatments. The aim of this study is to evaluate the in vitro antifungal effects of two crude extracts of L.

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  • Naudin, a plant species from the Cerrado, shows promise for therapeutic uses, prompting researchers to standardize its aqueous leaf extracts and examine seasonal chemical differences.
  • Seven batches of extracts were analyzed for their total solids, polyphenolic content, flavonoids, and antioxidant activity using techniques like TLC and HPLC.
  • The seasonal study, which spanned from May 2017 to August 2018, found that chemical compositions remain stable throughout the year, indicating that extracts can be consistently produced without major variations in quality.
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Cordia verbenacea DC (Boraginaceae) is a flowering shrub found along the Brazilian Atlantic Forest, Brazilian coast, and low areas of the Amazon. The crude extract of its leaves is widely used in Brazilian folk medicine as an anti-inflammatory, both topically and orally. The aim of this study is to evaluate the activity of C.

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Photochemoprotection of the skin can be achieved by inhibiting inflammation and oxidative stress, which we tested using Cordia verbenacea extract, a medicinal plant known for its rich content of antioxidant molecules and anti-inflammatory activity. In vitro antioxidant evaluation of Cordia verbenacea leaves ethanolic extract (CVE) presented the following results: ferric reducing antioxidant power (886.32 μM equivalent of Trolox/g extract); IC of 19.

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Background: Current recommendations for the self-management of SARS-Cov-2 disease (COVID-19) include self-isolation, rest, hydration, and the use of NSAID in case of high fever only. It is expected that many patients will add other symptomatic/adjuvant treatments, such as herbal medicines.

Aims: To provide a benefits/risks assessment of selected herbal medicines traditionally indicated for "respiratory diseases" within the current frame of the COVID-19 pandemic as an adjuvant treatment.

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L-asparaginase has been used in the remission of malignant neoplasms such as acute lymphoblastic leukemia. The search for new sources of this enzyme has become attractive for therapeutics. Traditional methods for biomolecule purification involve several steps.

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  • β-Galactosidases are important enzymes used in various industries, notably for lactose hydrolysis and transgalactosylation.
  • The study focused on extracting and characterizing a β-galactosidase enzyme from the fungus Aspergillus niger, optimizing production conditions to achieve maximum activity.
  • After purification, the enzyme demonstrated stability at a temperature of 50 °C and pH 5.0, retaining 80% of its activity under gastric conditions, highlighting its potential for food industry applications.
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The use of natural oils in topical pharmaceutical preparations has usually presented safe agents for the improvement of human health. Based on research into the immense potential of wound management and healing, we aimed to validate the use of topical natural products by studying the ability of the essential oil of DC leaves (oEd) to stimulate in vitro skin cell migration. Skin cytotoxicity was evaluated using a fibroblast cell line (L929) by MTT assay.

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Pouteria ramiflora (Mart.) Radlk. (Sapotaceae) is a species used by inhabitants from the Cerrado for its edible fruits and medicinal value.

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Type 2 diabetes plays a major role in public health, affecting about 400 million adults. One of the used strategies to control type 2 diabetes is the inhibition of α-amylase activity to reduce post-prandial blood glucose levels. Therefore, in past decades, the search of new α-amylase inhibitors has led to the evaluation of natural products as a source of these compounds.

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Background: Medicinal plants have traditionally been used in many parts of the world as alternative medicine. Many extracts and essential oils isolated from plants have disclosed biological activity, justifying the investigation of their potential antimicrobial activity. In this study, the in vitro antifungal activity of six Brazilian Cerrado medicinal plant species were evaluated against clinically relevant Candida species.

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  • The study investigates the effectiveness of plant extracts from the Brazilian Cerrado biome in enhancing radiotherapy for head and neck cancer cells.
  • Ten out of fifteen plant extracts showed moderate to severe cytotoxicity, with some extracts performing comparably to the chemotherapy drug cisplatin when combined with radiation.
  • Pre-treating cancer cells with these plant extracts followed by radiation resulted in a significant increase in cell death, suggesting potential benefits in integrating these natural compounds into cancer treatment.
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