scholarly journals In vitro Assessment of Anti-Inflammatory and COX-2 inhibitory action of some medicinal plants

Author(s):  
Usama Ramadhan

Objective of this research was to evaluate the anti-inflammatory and COX-2 inhibitory properties of celery, myrrh, aqueous and alcoholic fenugreek plant extracts. The Human Red Blood Cell membrane stabilization (HRBC) method was used to evaluate the anti-inflammatory effect and the Enzyme Immunoassay (EIA) was used to evaluate the COX-2 inhibitory actions. The celery extract showed excellent anti-inflammatory and COX-2 inhibition potency. The other extracts (myrrh and fenugreek) showed less activity that might indicate high efficacy of celery. This may be attributed to the plant constituents, mainly to a compound known as 3-n-butylphthalide, which is the most powerful of all healing factors of celery.

2019 ◽  
Vol 17 (1) ◽  
pp. 685-693
Author(s):  
Chen Xi ◽  
Liu Yuanyuan ◽  
Zhao Dongshuang ◽  
Fan Ziwei ◽  
Cao Shuang ◽  
...  

AbstractIn this research, we investigated possible anti-inflammatory roles of Prunus tomentosa Thunb Total Flavones (PTTTF) in LPS-induced RAW264.7 cells. PTTTF (4μg/ml and 40μg/ml) was applied to RAW264.7 cells induced with 1μg/ml LPS to test the impact of these flavones on neutrophil phagocytosis in vitro. Levels of prostaglandin E2 (PGE2) and two pro-inflammatory interleukin cytokines (i.e. IL-6 and IL-1β) in the supernatant fraction were tested via Enzyme-linked immunosorbent assays (ELISA). Expression of cyclooxygenases COX-1 and COX-2 was detected via RT-PCR. Superoxide dismutase (SOD) content was determined with a spectrophotometric assay (Micromethod). The results revealed that PTTTF at doses higher than 4μg/ml reduces the content of IL-6, IL-1β and PGE2 (P < 0.05), and elevates the activity of SOD in LPS-induced RAW264.7 cells significantly (P < 0.05). PTTTF at 40μg/ml showed no significant effect on the expression of COX-1(P>0.05) but resulted in a significant inhibition of COX-2 in LPS-induced RAW264.7 cells (P<0.05). In summary, PTTTF had a substantial potential anti-inflammatory effect through the alteration of the synthesis of some cytokines and other mediators of the process of inflammation. Novelty statement - Prunus tomentosa Thunb Total Flavones (PTTTF) have known roles in the treatment of diabetes, but here we show that they are also potential anti-inflammatory agents. Our results show that PTTTF exhibited anti-inflammatory effects through altering the synthesis of some cytokines and other mediators of the inflammatory process.


2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Orsolya Farkas ◽  
Orsolya Palócz ◽  
Erzsébet Pászti-Gere ◽  
Péter Gálfi

Thein vitroanti-inflammatory effect of apigenin and its trimethylated analogue (apigenin-trimethylether) has been investigated in order to evaluate whether these flavonoids could attenuate LPS-induced inflammation in IPEC-J2 non-transformed intestinal epithelial cells. Levels of IL-6, IL-8, TNF-α, and COX-2 mRNA were measured as a marker of inflammatory response. The extracellular H2O2level in IPEC-J2 cells was also monitored by Amplex Red assay. Our data revealed that both compounds had significant lowering effect on the inflammatory response. Apigenin (at 25 μM) significantly decreased gene expression of IL-6 in LPS-treated cells, while apigenin-trimethylether in the same concentration did not influence IL-6 mRNA level. Both apigenin and apigenin-trimethylether reduced IL-8 gene expression significantly. TNF-αmRNA level was decreased by apigenin-trimethylether, which was not influenced by apigenin. Treatment with both flavonoids caused significant reduction in the mRNA level of COX-2, but the anti-inflammatory effect of the methylated analogue was more effective than the unmethylated one. Furthermore, both flavonoids reduced significantly the level of extracellular H2O2compared to the control cells. In conclusion, the methylated apigenin analogue could avoid LPS-induced intestinal inflammation and it could be applied in the future as an effective anti-inflammatory compound.


2021 ◽  
Vol 22 (16) ◽  
pp. 8716
Author(s):  
Hun Hwan Kim ◽  
Sang Eun Ha ◽  
Preethi Vetrivel ◽  
Pritam Bhagwan Bhosale ◽  
Seong Min Kim ◽  
...  

The antioxidant and anti-inflammatory potentials of polyphenols contained in Gynura procumbens (GP) extract were systematically analyzed. Polyphenols in GP were analyzed for nine peaks using high-performance liquid chromatography (HPLC) combined with mass spectrometry (MS), and quantitatively determined through each standard. A total of nine polyphenolic compounds were identified in the samples and their MS data were tabulated. To determine the potential of bioactive ingredients targeting DPPH and COX-2, we analyzed them by ultrafiltration combined with LC. The results identified the major compounds exhibiting binding affinity for DPPH and COX-2. Caffeic acid, kynurenic acid, and chlorogenic acid showed excellent binding affinity to DPPH and COX-2, suggesting that they can be considered as major active compounds. Additionally, the anti-inflammatory effect of GP was confirmed in vitro. This study will not only be used to provide basic data for the application of GP to the food and pharmaceutical industries, but will also provide information on effective screening methods for other medicinal plants.


Author(s):  
Sitaram Ahalya ◽  
B. A. Venkatesh ◽  
R. Vijayasarathi ◽  
Tirumalapura Vijayanna Shalini

Background: Topical application of herbs is one of the recommended treatment modalities for Osteoarthritis (OA) in Ayurveda (Indian system of medicine). The current study intended to evaluate the anti-inflammatory effect of a polyherbal powder used as Upanaha (poultice) for OA by in vitro and in vivo techniques. Materials and Methods: The polyherbal formulation Upanaha Choornam (UC) was sourced from Vaidyaratnam Oushadhasala (P) Ltd., Thrissur, India. Changes in the secretion of TNF-α and NO and expression of Cox-2 genes were evaluated by semi quantitative PCR activity to establish anti-inflammatory action in vitro. Macrophages and connective tissue of mice were used as media for the former two experiments and only macrophages for the latter. In vivo anti–inflammatory activity was evaluated by TPA induced ear oedema in Swiss Albino mice (n=24), divided into 4 groups as Group I - saline treatment, Group II - Indomethacin treatment, and Groups III and IV treated with 30% and 60% of UC respectively. Results: In the in vitro study, UC at 1000 µg/ml and 500 µg/ml upregulated the COX-2 level by 0.08 and 0.03 folds respectively as compared to control. Release of TNF-α, and NO in LPS-induced RAW cells were significantly inhibited in a dose dependent manner. The TPA induced ear oedema significantly reduced in Groups III and IV (F=1250, p less than 0.001) Conclusion: The current study demonstrates the safety and anti-inflammatory activity of a polyherbal formulation Upanaha Choornam as a topical application. This indicates the potential of select herbs in managing degenerative conditions like OA.


2010 ◽  
Vol 5 (3) ◽  
pp. 1934578X1000500
Author(s):  
Ericsson David Coy Barrera ◽  
Luis Enrique Cuca Suárez

The in vitro anti-inflammatory effect of eight aporphine alkaloids isolated from the leaves of two Lauraceae plants (Pleurothyrium cinereum and Ocotea macrophylla) was evaluated through inhibition of two isozymes of cyclooxygenase (COX-1 and COX-2), 5-lipoxygenase (5-LOX), and platelet aggregation induced by PAF, AA and ADP. All alkaloids exhibited inhibitory activities against COX-2 (IC50 25.9-116 μM range) and PAF- and AA-induced platelet aggregation, while only four and three of them were good COX-1 and 5-LOX inhibitors, respectively. (+)-N-acetyl-nornantenine 6 was the most potent COX-2, 5-LOX, AA and PAF inhibitor.


2014 ◽  
Vol 740 ◽  
pp. 532-538 ◽  
Author(s):  
Xiaofeng Niu ◽  
Qingli Mu ◽  
Weifeng Li ◽  
Huan Yao ◽  
Huani Li ◽  
...  

Cells ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1571
Author(s):  
Anna Kieronska-Rudek ◽  
Agnieszka Kij ◽  
Patrycja Kaczara ◽  
Anna Tworzydlo ◽  
Marek Napiorkowski ◽  
...  

Vitamins K exert a range of activities that extend far beyond coagulation and include anti-inflammatory effects, but the mechanisms involved in anti-inflammatory action remain unclear. In the present study, we showed that various forms of exogenous vitamins—K1, K3, K2 (MK-4, MK-5, MK-6 and MK-7)—regulated a wide scope of inflammatory pathways in murine macrophages in vitro, including NOS-2, COX-2, cytokines and MMPs. Moreover, we demonstrated for the first time that macrophages are able to synthesise endogenous MK-4 on their own. Vitamins with shorter isoprenoid chains—K1, K3 and MK-5—exhibited stronger anti-inflammatory potential than vitamins with longer isoprenoid chains (MK-6 and MK-7) and simultaneously were preferably used as a substrate for MK-4 endogenous production. Most interesting, atorvastatin pretreatment inhibited endogenous MK-4 production but had no impact on the anti-inflammatory activity of vitamin K. In summary, our results demonstrate that macrophages are able to synthesise endogenous MK-4 using exogenous vitamin K, and statin inhibits this process. However, the anti-inflammatory effect of exogenous vitamin K was independent of endogenous MK-4 synthesis.


Author(s):  
ADEK ZAMRUD ADNAN ◽  
FITHRIANI ARMIN ◽  
IKHWAN RESMALA SUDJI ◽  
MEDIOLA DWI NOVIDA ◽  
DEWI IMELDA ROESMA ◽  
...  

Objective: This study was aimed to evaluate the anti-inflammatory effect of isolated tinocrisposide and freeze-dried aqueous extract of Tinospora crispa stems on human red blood cell (HRBC) by increasing membrane stability in vitro models. Methods: Anti-inflammatory effect of tinocrisposide and FDAETCS was evaluated by in vitro HRBC membrane stabilization method. The study was separated into two steps which were a hemolytic and a membrane stabilization experiment. The hemoglobin that was released throughout the damaged erythrocytes membrane was then quantified at the wavelength of (λ) 560 nm. Results: The hemoglobin in the HBRC supernatant that treated with tinocrisposide at concentration of 100, 200, 400, 600, 800, and 1000 μg/ml showed an absorbance at λ 560 nm of 0.060, 0.061, 0.071, 0.072, 0.075, and 0.0793, respectively, and the calculated hemolysis percentage was 0.032, 0.097, 1.203, 1.236, 1.641, and 2.079%, respectively. We found a linear correlation between concentration and hemolytic activity of tinocrisposide, with regression equation, y=0.0023x−0.1312 (r=0.929). Meanwhile, the HBRC supernatant that treated with FDAETCS at concentration of 100, 200, 400, 600, and 800 μg/ml showed an absorbance at λ 560 nm of 0.063, 0.064, 0.066, 0.067, and 0.077, respectively, and revealed the hemolytic percentage of 0.347, 0.473, 0.693, 0.992, and 1.896%, respectively. It also gave a linear correlation between FDAETCS concentration and hemolytic activity percentage, with regression equation, y=0.002x+0.0222 (r=0.895). Moreover, in HRBC membrane stability experiment, tinocrisposide concentration of 100, 200, 400, 800, and 1000 μg/ml gave absorbance at λ 560 nm of 0.818, 0.808, 0.798, 0.789, 0.773, and 0.761, respectively, and calculated HRBC membrane stabilization activity as much as 5.437, 6.533, 7.707, 8.748, 10.597, and 12.100%, respectively. Meanwhile, the positive control ibuprofen 25 μg/ml only exerted the membrane stability of 5.620%. It was found a linear correlation between tinocrisposide concentration and membrane stability percentage, with the regression equation, y=0.0072x+4.8312 (r=0.9932). Treated FDAETCS in the concentration of 100, 200, 400, and 800 μg/ml gave the absorbance at λ 560 nm of 0.802, 794, 0.777, 0.791, and 0.792, with stability membrane percentage of 7.283, 8.208, 10.944, 8.555, and 8.401%, respectively. It can be seen that the FDAETCS concentrations and its hemolytic percentage showed a parabolic relationship, which gave a maximum at a concentration of the extract of 400 mg/ml with membrane stabilizing of 10.944%. Conclusion: It can be concluded that tinocrisposide and FDAETCS have an anti-inflammatory activity by increase the membrane stability of lysosome cell that has equal physiological properties with erythrocytes membrane cell and it has no hemolytic activity.


2021 ◽  
Author(s):  
Ju Young Lee ◽  
Han Na Suh ◽  
Kwan Young Choi ◽  
Chang Woo Song ◽  
Jeong Ho Hwang

Abstract Background Bentonite, a montmorillonite clay, has been used as a classical remedy strategy for a long time. Recently, bentonite has been used as a raw material in cosmetic products because of its antibacterial and antioxidant properties. However, the therapeutic effect of bentonite on burn injuries has not yet been identified. Here, we explored the therapeutic effect of a novel bentonite complex, which was developed for medical use, on burn wounds and the anti-inflammatory function of bentonite clay in the complex in vitro. Methods A novel bentonite complex and bentonite clay were provided by C&L Biotech Co., Ltd. (Seoul, Korea). The elements of bentonite clay were analysed using inductively coupled plasma optical emission spectroscopy. Burn wounds were induced on the dorsal skin of two Yucatan minipigs, and tissue regeneration was determined by cell proliferation, angiogenesis, and collagen deposition using immunohistochemistry and Masson’s trichrome staining. Anti-inflammatory function was determined using quantitative real-time PCR and enzyme-linked immunosorbent assays. Results We found that by inducing collagen synthesis, cell proliferation, and angiogenesis, the bentonite complex improved skin regeneration in burn wounds. It was also identified that the expression of inflammatory cytokines associated with cyclooxygenase 2 (COX-2) signalling was significantly inhibited by treatment of the burn wounds with the bentonite complex. An in vitro study to identify the anti-inflammatory effect of bentonite clay, a major component of the bentonite complex, showed that COX-2 signalling was significantly regulated in both HacaT keratinocytes and 3D4/2 macrophage cell lines in vitro. Conclusions This study identified the therapeutic effect of a novel bentonite complex in burn wounds by inducing skin regeneration and bentonite-mediated anti-inflammatory responses with bentonite complex treatment.


2013 ◽  
Vol 8 (5) ◽  
pp. 1575-1579 ◽  
Author(s):  
FENG ZHAO ◽  
LEI CHEN ◽  
CHENCHEN BI ◽  
MENGLIN ZHANG ◽  
WEIHUA JIAO ◽  
...  

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