Short-term treatment with Uncaria tomentosa aggravates the injury phenotype in mdx mice
ABCS health sci
; 49: [1-9], 11 jun. 2024.
Article
en En
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LILACS-Express
| LILACS
| ID: biblio-1555504
Biblioteca responsable:
BR1860.9
ABSTRACT
Introduction:
Uncaria tomentosa (Willd. ex Roem. & Schult.) DC. (Rubiaceae) or UT is a medicinal plant with antiviral, antimutagenic, anti-inflammatory and antioxidant properties. Duchenne muscular dystrophy (DMD) is a severe muscle wasting disease caused by mutations in the dystrophin gene; this deficiency leads to sarcolemma instability, inflammation, muscle degeneration and fibrosis.Objective:
Considering the importance of inflammation to dystrophy progression and the anti-inflammatory activity of UT, in the present study we evaluated whether oral administration of UT extract would ameliorate dystrophy in the mdx mice, a DMD model.Methods:
Eight-week-old male mdx mice were submitted to 200 mg/kg body weight daily UT oral administration for 6 weeks. General histopathology was analysed, and muscle tumor necrosis factor α, transforming growth factor-ß, myostatin and osteopontin transcript levels were assessed. The ability of mice to sustain limb tension to oppose their gravitational force was measured. Data were analysed with the unpaired Student's t-test.Results:
Morphologically, both untreated and UT-treated animals exhibited internalised nuclei, increased endomysial connective tissue and variations in muscle fibre diameters. Body weight and muscle strength were significantly reduced in the UT-treated animals. Blood creatine kinase was higher in UT-treated compared to untreated animals. In tibialis anterior, myostatin, transcript was more highly expressed in the UT-treated while in the diaphragm muscle, transforming growth factor-ß transcripts were less expressed in the UT-treated.Conclusion:
While previous studies identified anti-inflammatory, antiproliferative and anticarcinogenic UT effects, the extract indicates worsening of dystrophic muscles phenotype after short-term treatment in mdx mice.
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Idioma:
En
Revista:
ABCS health sci
Asunto de la revista:
MEDICINA
/
SAUDE PUBLICA
Año:
2024
Tipo del documento:
Article
País de afiliación:
Brasil