scholarly journals Antioxidant Action and In Vivo Anti-Inflammatory and Antinociceptive Activities of Myrciaria floribunda Fruit Peels: Possible Involvement of Opioidergic System

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Izabelly Bianca da Silva Santos ◽  
Bruno Santos dos Santos ◽  
João Ricardhis Saturnino de Oliveira ◽  
Wêndeo Kennedy Costa ◽  
Adrielle Zagmignan ◽  
...  

This work evaluated the antioxidant properties and in vivo antinociceptive and anti-inflammatory effects of extracts obtained from fruit peels of Myrciaria floribunda (H. West ex Willd.) O. Berg (Myrtaceae). This plant is popularly known in Brazil as Cambuí or camboim. Different extracts were submitted to comparative analysis to determine the content of selected phytochemical classes (levels of total phenols, flavonoids, and monomeric anthocyanins) and the in vitro antioxidant potentials. The extract with higher potential was selected for in vivo evaluation of its antinociceptive and anti-inflammatory action. Finally, the chemical characterization of this extract was performed by high-performance liquid chromatography (HPLC). MfAE (extract obtained using acetone as solvent) showed the higher levels of phenols (296 mg GAE/g) and anthocyanins contents (35.65 mg Cy-3-glcE/g) that were associated with higher antioxidant activity. MfAE also exhibited in vivo anti-inflammatory and analgesic propertiers. This fraction inhibited the inflammatory and neurogenic phases of pain, and this effect was reversed by naloxone (suggesting the involvement of opioidergic system). MfAE reduced the abdominal contortions induced by acetic acid. The HPLC analysis revealed the presence of gallic acid (and its derivatives) and ellagic acid. Taken together, these data support the use of M. floribunda fruit peels for development of functional foods and nutraceutics.

Biomedicines ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 615
Author(s):  
Shang-En Huang ◽  
Erna Sulistyowati ◽  
Yu-Ying Chao ◽  
Bin-Nan Wu ◽  
Zen-Kong Dai ◽  
...  

Osteoarthritis is a degenerative arthropathy that is mainly characterized by dysregulation of inflammatory responses. KMUP-1, a derived chemical synthetic of xanthine, has been shown to have anti-inflammatory and antioxidant properties. Here, we aimed to investigate the in vitro anti-inflammatory and in vivo anti-osteoarthritis effects of KMUP-1. Protein and gene expressions of inflammation markers were determined by ELISA, Western blotting and microarray, respectively. RAW264.7 mouse macrophages were cultured and pretreated with KMUP-1 (1, 5, 10 μM). The productions of TNF-α, IL-6, MMP-2 and MMP- 9 were reduced by KMUP-1 pretreatment in LPS-induced inflammation of RAW264.7 cells. The expressions of iNOS, TNF-α, COX-2, MMP-2 and MMP-9 were also inhibited by KMUP-1 pretreatment. The gene expression levels of TNF and COX families were also downregulated. In addition, KMUP-1 suppressed the activations of ERK, JNK and p38 as well as phosphorylation of IκBα/NF-κB signaling pathways. Furthermore, SIRT1 inhibitor attenuated the inhibitory effect of KMUP-1 in LPS-induced NF-κB activation. In vivo study showed that KMUP-1 reduced mechanical hyperalgesia in monoiodoacetic acid (MIA)-induced rats OA. Additionally, KMUP-1 pretreatment reduced the serum levels of TNF-α and IL-6 in MIA-injected rats. Moreover, macroscopic and histological observation showed that KMUP-1 reduced articular cartilage erosion in rats. Our results demonstrated that KMUP-1 inhibited the inflammatory responses and restored SIRT1 in vitro, alleviated joint-related pain and cartilage destruction in vivo. Taken together, KMUP-1 has the potential to improve MIA-induced articular cartilage degradation by inhibiting the levels and expression of inflammatory mediators suggesting that KMUP-1 might be a potential therapeutic agent for OA.


2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Deok-Sang Hwang ◽  
Hyo Geun Kim ◽  
Jun-Bock Jang ◽  
Myung Sook Oh

Dangguijakyak-san (DJS), a famous traditional Korean multiherbal medicine, has been used to treat gynecological and neuro-associated disease. Recent studies demonstrated that DJS has multiple bioactivities including neuroprotection. In the present study, we were to investigate the effect of DJS and its mechanism in anin vitroandin vivomodel of Parkinson’s disease (PD). In primary mesencephalic culture system, DJS attenuated the dopaminergic cell damage induced by 1-methyl-4-phenylpyridine toxicity, and it inhibited production of inflammatory factors such as tumor necrosis factorα(TNF-α), nitric oxide (NO), and activation of microglial cells. Then, we confirmed the effect of DJS in a mouse PD model induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). In the pole test, DJS at 50 mg/kg/day for 5 days showed increase of motor activity showing shortened time to turn and locomotor activity compared with the MPTP only treated mice. In addition, DJS significantly protected nigrostriatal dopaminergic neuron from MPTP stress. Moreover, DJS showed inhibition of gliosis in the substantia nigra pars compacta. These results have therapeutic implications for DJS in the treatment of PD via anti-inflammatory effects.


2021 ◽  
Vol 12 ◽  
Author(s):  
Jia Hui Wong ◽  
Anna M. Barron ◽  
Jafri Malin Abdullah

Natural products remain a crucial source of drug discovery for accessible and affordable solutions for healthy aging. Centella asiatica (L.) Urb. (CA) is an important medicinal plant with a wide range of ethnomedicinal uses. Past in vivo and in vitro studies have shown that the plant extract and its key components, such as asiatic acid, asiaticoside, madecassic acid and madecassoside, exhibit a range of anti-inflammatory, neuroprotective, and cognitive benefits mechanistically linked to mitoprotective and antioxidant properties of the plant. Mitochondrial dysfunction and oxidative stress are key drivers of aging and neurodegenerative disease, including Alzheimer’s disease and Parkinson’s disease. Here we appraise the growing body of evidence that the mitoprotective and antioxidative effects of CA may potentially be harnessed for the treatment of brain aging and neurodegenerative disease.


2016 ◽  
Vol 36 ◽  
pp. 55-61 ◽  
Author(s):  
Alok Mahor ◽  
Sunil Kumar Prajapati ◽  
Amita Verma ◽  
Rishikesh Gupta ◽  
Thakur Raghu Raj Singh ◽  
...  

Plants ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 505
Author(s):  
Valentina Amodeo ◽  
Mariangela Marrelli ◽  
Veronica Pontieri ◽  
Roberta Cassano ◽  
Sonia Trombino ◽  
...  

Spontaneous edible plants have an old history of use in popular traditions all around the world, and the rediscovery of these species could also be useful for the search of new drugs. Chenopodium album L. (Amaranthaceae) and Sisymbrium officinale (L.) Scop. (Brassicaceae) are two annual plants traditionally used both as food and herbal remedies against inflammatory disorders. In this work, the potential anti-inflammatory and anti-arthritic activities of these plant species have been investigated, together with their antioxidant potential. The phytochemical composition was assessed as well by means of gas chromatography coupled to mass spectrometry (GC-MS) and high performance thin layer chromatography (HPTLC). The antioxidant properties were assessed using the DPPH and β-carotene bleaching test. The ability of extracts to protect against lipid peroxidation was also examined in rat-liver microsomal membranes. All the samples showed a preservation of antioxidant activity up to 60 min. A significant inhibitory activity on the production of the pro-inflammatory mediator nitric oxide was induced in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells by the dichloromethane fraction of C. album extract, with an IC50 value equal to 81.7 ± 0.9 μg/mL. The same sample showed also a concentration-dependent anti-denaturation effect on heat-treated bovine serum albumin (IC50 = 975.6 ± 5.5 μg/mL), even if the best in vitro anti-arthritic activity was observed for the dichloromethane fraction of S. officinale extract, with an IC50 value of 680.9 ± 13.2 μg/mL.


2007 ◽  
Vol 59 (1) ◽  
pp. 123-130 ◽  
Author(s):  
Mu Hong Lee ◽  
Jeong Min Lee ◽  
Sung Hoon Jun ◽  
Chul Gyu Ha ◽  
Seung-Ha Lee ◽  
...  

2021 ◽  
Vol 15 (3) ◽  
pp. 175-194
Author(s):  
Boutaina Addoum ◽  
◽  
Bouchra El khalfi ◽  
Mohamed Idiken ◽  
Souraya Sakoui ◽  
...  

Background: Antioxidants are developed to assist the immune system and overcome oxidative stress, the aggression of cellular constituents due to imbalance between reactive oxygen species and the inner antioxidant system. The main objective of this study was to search for new and potent antioxidants to protect humans against diseases associated with oxidative stress. Methods: In this study, three pyrano-[2,3-c]-pyrazole derivatives were synthesized via Multicomponent Reaction (MCR) approach and were characterized, using a melting point, High-Performance Liquid Chromatography (HPLC), and spectroscopic analyses (IR; 1H-NMR; 13C-NMR). All of the generated compounds were screened for their antioxidant properties in vivo, using ciliate “Tetrahymena” as a model organism exposed to oxidative and nitrative stress. They were then studied in vitro by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) assays. Results: The results demonstrated that the three compounds (5a, b, c) are biologically active and possess potent antioxidant activities, especially the 5a and 5b derivatives. On the other hand, the in vitro bioassays revealed that the 5a derivative possessed a significant antioxidant activity much greater than ascorbic acid. Accordingly, the in silico data are consistent with the experimental data. Conclusion: These findings confirmed the potent antioxidant property of the synthesized compounds, providing us with new inspiration and challenges to design a library of pharmaceutical compounds with strong activity and low toxicity in the future.


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