Background: Bothrops moojeni snake venom (VBm) has toxins that cause pronounced tissue damage and exacerbated inflammatory reaction. Cannabis sativa L. is a plant species that produces an oil (CSO) rich in unsaturated fatty acids. Nano-emulsions have several advantages, such as better stability and higher penetrating power in membranes. Therefore, this study evaluated the effect of a nano-emulsion based on this herbal derivative (NCS) against VBm-induced inflammation in Wistar rats.
Methods: The CSO and NCS were submitted to physicochemical characterization. The inflammatory process was induced by the VBm (0.10 mg/kg) as follows: rat paw edema, peritonitis, analysis of leukocyte infiltrate in gastrocnemius muscle of rats and formation of granulomatous tissue.
Results: No significant changes were observed when the NCS was submitted to the centrifugation and thermal stress tests. There was no phase separation, changes in density (0.978 ± 0.01 g/cm) and viscosity (0.889 ± 0.15). The droplet diameter ranged from 119.7 ± 065 to 129.3 ± 0.15 nm and the polydispersity index ranged from 0.22 ± 0.008 to 0.23 ± 0.011. The results showed that treatments with CSO (200 and 400 mg/kg) and NCS (100 mg/kg) were able to decrease significantly (p < 0.001) the formation of edema and granulomatous tissue. The CSO and NCS groups significantly attenuated (p < 0.001) the recruitment of inflammatory cells in the tests for peritonitis and leukocyte infiltrate. The histopathological analysis of the gastrocnemius muscle showed a reduction in tissue damage caused by VBm.
Conclusion: The results obtained in this study showed anti-inflammatory activity of the CSO which may be due to a high UFA content. The nanosizing, as evidenced by the incorporation of the CSO in the NCS improved the effect and opens the perspective for the obtainment of a nanomedicine in which a kinetic stable phytotherapic can be used at low doses.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s10787-020-00754-y | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Disposable Pipette Extraction-UHPLC-MS/MS Method Based on Removal of Phospholipids to Determine Anandamide, 2-Arachidonoylglycerol, Cannabidiol, and Δ-Tetrahydrocannabidiol in Plasma Samples.
J Sep Sci
January 2025
Department of Chemistry, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, São Paulo, Ribeirão Preto-SP, Brazil.
Cannabidiol (CBD) and Δ-tetrahydrocannabinol (THC), the main components of Cannabis sativa plants, can interact with specific cell receptors known as cannabinoid receptors (CBs). The endogenous compounds anandamide (AEA) and 2-arachidonoylglycerol (2-AG) are CB agonists, and, alongside enzymes, they constitute the endocannabinoid system (ECS) and take part in neuromodulation. Several LC-MS/MS methods have been developed to quantify these compounds in biological matrixes, but a fast and simple method that can determine these analytes in plasma samples simultaneously is not available.
View Article and Find Full Text PDFFeasibility and acceptability of multiple methods of recording injecting drug use episode data among people who inject drugs in Melbourne, Australia: a pilot evaluation study protocol.
BMJ Open
December 2024
Disease Elimination, Burnet Institute, Melbourne, Victoria, Australia
Introduction: Opioid overdose and blood-borne virus transmission are key health risks for people who inject drugs. Existing study methods that record data on injecting drug risks mostly rely on retrospective self-reporting that, while valid, are limited to being broad and subject to recall bias. The In-The-Moment-Expanded (ITM-Ex) study will evaluate the feasibility and acceptability of multiple novel data collection methods to capture in situ drug injecting data.
View Article and Find Full Text PDFValidity, reliability and clinical utility of ASSIST-Y in assessing risk of substance-related harm and dependence in Spanish male adolescents.
Child Adolesc Psychiatry Ment Health
January 2025
School of Biomedicine (Pharmacology), The University of Adelaide, Adelaide, Australia.
Background: Substance use among adolescents is strongly associated with adverse physical, mental health, and social outcomes. Prevention and early intervention can reduce the likelihood of future problems, but requires valid and reliable screening tools capable of assessing risk across a range of substances. This study assessed the validity, reliability, and clinical utility of the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST-Y) for adolescents aged 15-17 years.
View Article and Find Full Text PDFCharacterisation of Cannabis glandular trichome development reveals distinct features of cannabinoid biosynthesis.
Plant Cell Rep
January 2025
Faculty of Science and Engineering, Southern Cross University, Lismore, NSW, 2480, Australia.
Cannabis trichome development progresses in distinct phases that underpin the dynamic biosynthesis of cannabinoids and terpenes. This study investigates the molecular mechanisms underlying cannabinoid and terpenoid biosynthesis in glandular trichomes of Cannabis sativa (CsGTs) throughout their development. Female Cannabis sativa c.
View Article and Find Full Text PDFPositive and negative affect differentially relate to alcohol and cannabis use in LGBTQ+ and cisgender-straight heavy-drinking adults: Results of an ambulatory assessment study.
Psychol Addict Behav
January 2025
Department of Psychological and Brain Sciences, University of Louisville.
Objective: Previous research has found that momentary positive affect precedes alcohol use, whereas results have been more mixed for negative affect.
Method: This study replicates and builds upon this literature by using a heavy drinking sample, half lesbian, gay, bisexual, trans, queer/questioning, and other minoritized sexual and gender identities (LGBTQ+) individuals.
Results: This study found that positive affect was related to subsequent alcohol use, but the relation was weaker for LGBTQ+ individuals compared to cisgender-straight individuals.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!