Anti-Inflammatory Effects of an Ethanolic Extract of Guava (Psidium guajava L.) Leaves In Vitro and In Vivo

2014 ◽  
Vol 17 (6) ◽  
pp. 678-685 ◽  
Author(s):  
Mi Jang ◽  
Seung-Weon Jeong ◽  
Somi K. Cho ◽  
Kwang Seok Ahn ◽  
Jong Hyun Lee ◽  
...  
2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Rodolfo Abarca-Vargas ◽  
Vera L. Petricevich

Background. Different pharmacological properties, such as antioxidant, antiproliferative, and anti-inflammatory properties, have been described among natural products. We previously described that the Bougainvillea xbuttiana (Variety Orange) ethanolic extract (BxbO) has an anti-inflammatory effect; however, this action is not fully understood. In this study, the action of the BxbO extract on the secretion of inflammatory mediators in two experimental models, in vitro and in vivo, after LPS challenge was evaluated. Methods. Peritoneal macrophages were obtained from female BALB/c mice and LPS-challenged with or without the BxbO extract. For the evaluation of mediators, the supernatants at 0, 12, 24, 36, and 48 hours were collected. For in vivo estimation, groups of female BALB/c mice were first intraperitoneously injected with different amounts of LPS and later administered the oral BxbO extract (v.o.) for 144 hours. To understand the mechanism of action, sera obtained from mice were collected at 0, 2, 4, 8, 12, and 24 hours after LPS challenge (with or without BxbO) for the detection of mediators. Results. The results showed that, in both peritoneal macrophages and sera of mice treated with the BxbO extract 1 hour before or together with LPS challenge, proinflammatory cytokines and nitric oxide release were unquestionably repressed. In contrast, in both systems studied here, the IL-10 levels were elevated to 5 to 9 times. At lethal doses of LPS, the BxbO extract treatment was found to protect animals from death. Conclusions. The results revealed that the inhibitory, protective, and benign effects of the BxbO extract were due to its capacity to balance the secretion of mediators.


2015 ◽  
Author(s):  
◽  
Wei Lei

Sutherlandia frutescens (L.) R. Br (Lessertia frutescens) is a medicinal plant traditionally used in southern Africa. It has been used for patients suffering from numerous types of cancer, infectious diseases, and various inflammatory conditions. This study was designed to determine the impact of S. frutescens on the inflammatory response and anti-microbial activities on cell and/or animal models. Aqueous and ethanolic extracts of S. frutescens were made and verified using HPLC. These extracts were used to treat murine macrophages (e.g., RAW 264.7 cells and primary macrophages isolated from mice) to evaluate the impact of S. frutescens on in vitro inflammatory responses. This study found that the aqueous extract and a polysaccharide-enriched fraction from the aqueous extract exhibited an immuno-stimulatory activity on murine macrophages. Treatment with aqueous extract or polysaccharides increased the production of reactive oxygen species (ROS), nitric oxide (NO), and inflammatory cytokines/chemokines via activating the toll-like receptor 4 signaling pathway. On the other hand, the ethanolic extract of S. frutescens dose-dependently decreased the production of ROS, NO, inducible nitric oxide synthase (iNOS), and various inflammatory cytokines and chemokines in murine macrophages co-stimulated with lipopolysaccharide (LPS) and interferon gamma (IFNy). Follow up experiments demonstrated that the anti-inflammatory activity of the ethanolic extract was mediated via reductions in the activation of NF-kB, extracellular-signal-regulated kinase 1/2 (ERK1/2), and signal transducers and activators of transcription 1 (STAT1). RNA sequencing provided more evidences to support the anti-inflammatory activity of the ethanolic extract of S. frutescens. To our surprise, chlorophylls isolated from S. frutescens had a greater effect on the anti-inflammatory of S. frutescens than that of unique compounds (i.e., sutherlandiosides and sutherlandins). To investigate the impact of oral consumption of S. frutescens on in vivo inflammatory responses and anti-microbial activities, mice were fed with AIN-93G based diet with/without containing ground S. frutescens powder or were gavaged with S. frutescens extracts followed by challenge with E. coli or LPS. These experiments found that oral consumption of S. frutescens had limited or no impact on the in vivo inflammatory responses and anti-microbial activities. Overall, this study provide a better understanding on the beneficial therapeutic properties of S. frutescens using in vitro models, however these studies in a laboratory mouse model suggest that consumption of S. frutescens had only a modest impact on host anti-microbial and inflammatory responses to a gram-negative microbial challenge whether intact microbes or bacterial endotoxin (i.e., LPS) was used.


Author(s):  
AKBAL AHMAD ◽  
ABADHESH KUMAR NIRANJAN

Objective: The present research work is based to establish the formulation and evaluation of herbal oral emulgel containing extracts of powdered Psidium guajava Linn. leaves extract. Methods: The guava leaves were collected and extracted by cold maceration process using different solvents, further ethanolic extract was used for the emulgel preparation. Emulsion and gel phase were prepared separately and mixed together in ratio of 1:1. Results: Different formulations ere developed and evaluated for the physical appearance, pH, homogeneity, spreadability, viscosity, extrudability, antibacterial activity, and in vitro skin permeability studies. In all formulated emulgel containing P. guajava Linn. Leaves, extract F2 formulation gives all satisfactory results as in discuss in this paper. Conclusion: Overall, concluded that the extract might contain anti-bacterial properties and further tests are required to prove for oral care activity using other in vivo or in vitro techniques.


2017 ◽  
Vol 45 (07) ◽  
pp. 1477-1496 ◽  
Author(s):  
Yun Hee Jeong ◽  
You-Chang Oh ◽  
Won-Kyung Cho ◽  
Hye Jin Yang ◽  
Jin Yeul Ma

Maydis Stigma (MS) is an herb traditionally used in many parts of the world. Previous studies have reported that MS plays a role in several biological activities, including antidiabetic and anticancer activities. However, the effects of a MS ethanolic extract (MSE) on the anti-inflammatory cellular mechanism remain unclear. Here, we investigated the anti-inflammatory properties of MSE and its molecular mechanism both in vitro and in vivo. The effects of MSE on the production of inflammatory mediators, cytokines, and related proteins and the identification of target genes were determined using LPS-stimulated macrophages. We also determined the analgesic and anti-inflammatory effects of MSE by examining acetic acid-induced writhing responses and xylene-induced ear edema in mice. Our results indicated that MSE markedly decreased iNOS and COX-2 levels without causing cytotoxicity and suppressed the secretion of NO in LPS-stimulated macrophages. MSE also inhibited the production of proinflammatory cytokines, such as TNF-[Formula: see text], IL-6, and IL-1[Formula: see text], and induced the expression of HO-1. Moreover, MSE treatment significantly reduced the LPS-stimulated activation of MAPK, NF-[Formula: see text]B, and AP-1. Furthermore, MSE exerted an analgesic effect on the acetic acid-induced abdominal writhing response test and an anti-inflammatory effect on xylene-induced ear edema in ICR mice. Finally, we investigated the components of MSE using UPLC-ESI-MS and found that it contains the maysin as a marker component. Overall, these observations demonstrate that MSE has anti-inflammatory and antinociceptive effects both in vitro and in vivo, which may provide new scientific evidence for its use as a potential therapeutic agent for the treatment of inflammation.


Author(s):  
H M Arif Ullah ◽  
Sayera Zaman ◽  
Fatematuj Juhara ◽  
Lucky Akter ◽  
Syed Mohammed Tareq ◽  
...  

2018 ◽  
Vol 3 (2) ◽  
pp. 39
Author(s):  
Jintana Junlatat ◽  
Bungorn Sripanidkulchai

Background: Glochidion daltonii (MÜll. Arg.) Kurz, Euphorbiaceae family, is a native medicinal plant in tropical regions of Asia. In Thailand, it has traditionally been used for treating pain and mouth inflammation. Objective: This study aims to investigate the anti-inflammatory and anti-oxidant effects of G. daltonii ethanolic extract (GDE) both in vitro and in vivo. Method: The anti-inflammatory mechanism was examined in E.coli LPS-stimulated RAW264.7 cells by using semi-quantitative-reverse transcription-polymerase chain reaction and the potential anti-inflammatory effect of GDE was evaluated in Sprague-Dawley rat using carrageenan-induced rat paw edema method. In addition, DPPH assay was used for anti-oxidant evaluation. Result: The results showed that GDE at 0.063 - 0.250 mg/mL concentrations inhibited the expressions of tumor necrosis factor-α and interleukin-1β. Moreover, an intraperitoneal administration of GDE significantly reduced paw edema in rats. Furthermore, GDE showed high anti-oxidant property with IC50 values at 6.35 ± 0.28 µg/mL. Conclusion: The results support the traditionally use of GDE for treating inflammation.


2021 ◽  
Vol 28 (1) ◽  
pp. 427-439
Author(s):  
Safaa I. Khedr ◽  
El Hassan M. Mokhamer ◽  
Amal A.A. Hassan ◽  
Asmaa S. El-Feki ◽  
Gihan M. Elkhodary ◽  
...  

2011 ◽  
Vol 2011 ◽  
pp. 1-13 ◽  
Author(s):  
Ananya Chatterjee ◽  
Subrata Chattopadhyay ◽  
Sandip K. Bandyopadhyay

Amla (Phyllanthus emblicaL.), apart from its food value, can be used as a gastroprotective agent in non steroidal anti-inflammatory drug (NSAID)-induced gastropathy. It has been suggested that the antioxidative property of amla is the key to its therapeutic effect. Hence, on the basis ofin vitroantioxidative potential, the ethanolic extract of amla (eAE) was selected forin vivostudy in NSAID-induced ulcer. Intriguingly, eAE showed biphasic activity in ulcerated mice, with healing effect observed at 60 mg/kg and an adverse effect at 120 mg/kg.The dose-dependent study revealed that switching from anti-oxidant to pro-oxidant shift and immunomodulatory property could be the major cause for its biphasic effect, as evident from the total antioxidant status, thiol concentration, lipid peroxidation, protein carbonyl content followed by mucin content, synthesis and cytokine status. Further, Buthionine sulfoxamine (BSO) pretreatment established the potential impact of antioxidative property in the healing action of eAE. However, eAE efficiently reduced pro-inflammatory cytokine (TNF- and IL-1) levels and appreciably upregulate anti-inflammatory cytokine (IL-10) concentration. In conclusion, gastric ulcer healing induced by eAE was driven in a dose-specific manner through the harmonization of the antioxidative property and modulation of anti-inflammatory cytokine level.


2020 ◽  
Vol 10 (5) ◽  
pp. 168-174
Author(s):  
Narendraa Yadav ◽  
Sourabh Jain ◽  
Karunakar Shukla

Inflammation is a reaction of a living vascularised tissue to an injury. Conventional or synthetic drugs used in the treatment of inflammatory diseases are inadequate, it sometimes have serious side effects. So, number of herbal medicines is recommended for the treatment of inflammation that has no side effects. Hence our study focused to investigate the physicochemical, qualitative phytochemical analysis of bioactive compounds and In-vitro and In-vivo anti-inflammatory activity of Plumeria indica Linn (P. Indica) flowers extract which has boundless medicinal properties. The physicochemical evaluations carried out in terms of loss on drying, ash value, extractive values and acid insoluble ash value ect. Qualitative analysis of various phytochemical constituents was determined by the well-known test protocol available in the literature. The aqueous and ethanolic extract of P. Indica flowers was screened for in-vivo anti-inflammatory activity by carrageenan induced paw edema in rat model and in-vitro anti-inflammatory activity by human red blood cell membrane stabilization method. Phytochemical analysis revealed the presence of phenols, flavonoids, tannins, saponins, alkaloids ect. Ethanolic extract showed best in vitro anti-inflammatory activity was screened for in vivo anti-inflammatory activity at the dose level of 250 and 500mg/kg. Indomethacin at the dose level of 10 mg/kg was used as reference standard drug. Both the extracts showed a dose dependent anti-inflammatory potential which provide scientific basis for the traditional claims of P. Indica flowers as an anti-inflammatory drug. Keywords: Plumeria indica Linn, Anti-inflammatory activity, Carrageenan, Human red blood cells membrane


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