scholarly journals Suppression of inflammatory mediators by aqueous leaf extract of Crotalaria verrucosa: in vivo and in vitro analysis

Author(s):  
Mohammad Mustakim Billah ◽  
Abir Huzaifa ◽  
M. Abdul Kader Khan ◽  
Nusrat Jahan Vabna ◽  
Kashfia Nawrin ◽  
...  

Background: Crotalaria verrucosa is a traditional plant frequently prescribed by the tribes for its medicinal value against inflammation. The present study was designed to investigate the scientific basis for medicinal value in inflammation by in vivo and in vitro analysis.Methods: Anti-inflammatory activity of the plant’s leaf was evaluated by two in vivo methods - carrageenan induced rat paw edema and xylene induced mice ear edema. Moreover, in vitro analysis was performed through heat induced hemolysis and heat induced protein denaturation methods.Results: The inflammation produced by carrageenan and xylene were effectively suppressed by the aqueous leaf extract of C. verrucosa (CVAQ) at 600 mg/kg body weight which was comparable to the standards. In heat induced hemolysis test the extract was able to inhibit the lysis up to 70% at 500 µg/ml whereas in heat induced protein denaturation test it reduces the percentage till 69% at the same concentration.Conclusions: The findings suggested that CVAQ possess moderate to high anti-inflammatory activity when applied in low to high concentrated doses. However, the study can only conclude from this basic evaluation that the extract needs to be further investigated for identifying the potential compound which contributed to such medicinal value of the plant.

2020 ◽  
Vol 1 (2) ◽  
pp. 46-53
Author(s):  
Lusi Agus Setiani ◽  
Zaldi Rusli

Inflammation is the immune system's main response to infection and irritation. African leaf (Gymnanthemum amygdalinum) is one of the medicinal plants that can be used as anti-inflammatory because of the presence of flavonoid compounds. Flavonoid compounds have an anti-inflammatory effect that can regulate arachidonic acid metabo-lism by inhibiting cyclooxygenase (COX) and lipooksigenase activi-ties. This study aims to obtain scientific information and the potential of African leaf extract as an anti-inflammatory in vitro and in vivo test. In this study, in vitro and in vivo anti-inflammatory activity tests were carried out. The in vitro anti-inflammatory activity was evaluated by the ability of African leaf extracts to prevent protein denaturation and in vivo anti-inflammatory activity by observing the reduction of edema in the soles of rats induced by carrageenan by giving three lev-els of doses of African leaf extract. The results showed that the African leaf extract at a concentration of 8273.91 mg L-1 was able to inhibit 50% denatured protein (IC50), while in the in vivo test African leaf had the potential as an anti-inflammatory with the most effective percent-age of inhibition at a dose of 200 mg kg-1 which is 85.20%. African leaf have the potential of approximately 2 times greater than the positive control of diclofenac sodium which is 45.70%.


Author(s):  
Snigdha Pattnaik ◽  
Laxmidhar Moharana

Anti-inflammatory refers to group of medication that is utilized for curing pain and inflammation. Many synthetic products are used as anti-inflammatory agents but the effects caused by them is not satisfactory. Cordis obliqua is an anti-inflammatory herb that is enormously involved in pain reduction. The present paper aims to develop a topical gel formulation comprising herbs i.e. Cordis obliqua and curcumin with potent anti-inflammatory activity. The gel formulation was then subjected to characterization studies which involve pH, viscosity, excrudability, spreadability and in vitro analysis. pH of gel formulation was found to be 7.2±1.01 which is almost equivalent to the skin pH. In viscosity test, it was observed that viscosity of gel formulation was found to be effective. Moreover, spreadability co-efficient of the formulation satisfactory which indicates that sanitizer gel easily adhers on the skin and covers the bacteria residing on the skin, if any.


Author(s):  
Jaeyong Kim ◽  
Gyuok Lee ◽  
Huwon Kang ◽  
Ji-Seok Yoo ◽  
Yongnam Lee ◽  
...  

Background: Inflammation is emerging as a key contributor to many vascular diseases and furthermore plays a major role in autoimmune diseases, arthritis, allergic reactions, and cancer. Lipopolysaccharide (LPS), which is a component constituting the outer membrane of Gram-negative bacteria, is commonly used for an inflammatory stimuli to mimic inflammatory diseases. Nuclear factor-kappa B (NF-κB) is a transcription factor and regulates gene expression particularly related to the inflammatory process. Stauntonia hexaphylla (Lardizabalaceae) is widely used as a traditional herbal medicine for rheumatism and osteoporosis and as an analgesic, sedative, and diuretic in Korea, Japan, and China. Objective: The purpose of this study was to investigate the anti-inflammatory activity of YRA-1909, the leaf aqueous extract of Stauntonia hexaphylla using LPS-activated rat peritoneal macrophages and rodent inflammation models. Results: YRA-1909 inhibited the LPS-induced nitric oxide (NO) and proinflammatory cytokine production in rat peritoneal macrophages without causing cytotoxicity and reduced inducible NO synthase and prostaglandin E2 levels without affecting the cyclooxygenase-2 expression. YRA-1909 also prevented the LPS-stimulated Akt and NF-κB phosphorylation and reduced the carrageenan-induced hind paw edema, xylene-induced ear edema, acetic acid-induced vascular permeation, and cotton pellet-induced granuloma formation in a dose-dependent manner in mice and rats. Conclusions: S. hexaphylla leaf extract YRA-1909 had anti-inflammatory activity in vitro and in vivo that involves modulation of Akt/NF-κB signaling. Thus, YRA-1909 is safe and effective for the treatment of inflammation.


2021 ◽  
Author(s):  
Ravindra Jagannath Waghole ◽  
Ashwini Vivek Misar ◽  
Neha Shashikant Kulkarni ◽  
Feroz Khan ◽  
Dattatraya Gopal Naik ◽  
...  

Abstract The severity and perseverance of the inflammation have been demonstrated in many health conditions. The limitations of existing medications, propose the need for newer alternative anti-inflammatory medications. In our earlier studies, we demonstrated the topical anti-inflammatory potential of crude ethanolic extract of Tetrastigma sulcatum leaves and its fractions. In the present study, we further explored anti-inflammatory activity of T. sulcatum extract, fractions, pure compound and its derivatives using in vitro and in vivo bioassay techniques. We attempted to isolate a pure compound from leaf extract and was identified as Friedelan-3β-ol (CI) and its derivatives Friedelinol acetate (C II) and Friedelinol methyl ether (C III) were synthesized. Treatment with crude extract and its fractions demonstrated a significant reduction in the mRNA expression levels of pro-inflammatory cytokines (IL-1β, IL-6, TNF-α) and nitric oxide (NO) production in LPS-stimulated inflammation in RAW 264.7 cells. Likewise, compounds CI, CII and CIII showed a similar pattern of significant inhibition of proinflammatory cytokines and NO production. In vivo study in Carrageenan induced paw-inflammatory mice model demonstrated reduced paw oedema and proinflammatory cytokines levels in a dose-dependent manner upon treatment of extract, its fractions, pure compound (CI), and their derivatives (CII and CIII.). The docking study showed all the compounds (CI, CII and CIII) share common residues with Dexamethasone. TNF- α exhibited the most interacting residues with the compounds. The present study confirmed the T. sulcatum ’s anti-inflammatory activity, suggesting Friedelan-3β-ol as an active component in a crude extract.


Author(s):  
DANGAR DK ◽  
PATEL NJ

Objective: Neuracanthus sphaerostachyus has been traditionally used to treat skin diseases, cough, and asthma. Lack of sufficient scientific evidence indicating the utility of this plant in the treatment of inflammation prompted us to investigate the anti-inflammatory activity of the plant in different experimental screening methods. Methods: In vitro and in vivo anti-inflammatory activity of the methanolic and aqueous extracts of N. sphaerostachyus (MENS and AENS) leaves at doses of 125, 250, and 500 mg/kg was evaluated with albumin denaturation and carrageenan-induced paw edema in rats and acetic acid-induced increased vascular permeability in mice. Results: Methanolic and aqueous extract significantly inhibited protein denaturation as well as edema induced by carrageenan and vascular permeability in mice dose dependently. Aspirin (0.1 mg/ml), indomethacin (10 mg/kg), and dexamethasone (5 mg/kg) were used as a standard control. Conclusion: It is concluded that MENS and AENS leaves exhibited significant anti-inflammatory activity.


Biomedicines ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 107 ◽  
Author(s):  
K. Gunathilake ◽  
K. Ranaweera ◽  
H. Rupasinghe

The study investigated the anti-inflammatory activity of the hydro methanolic extract of six leafy vegetables, namely Cassia auriculata, Passiflora edulis, Sesbania grandiflora, Olax zeylanica, Gymnema lactiferum, and Centella asiatica. The anti-inflammatory activity of methanolic extracts of leafy vegetables was evaluated using four in vitro-based assays: hemolysis inhibition, proteinase inhibition, protein denaturation inhibition, and lipoxygenase inhibition. Results showed that the percent inhibition of hemolysis from these leaf extracts (25–100 µg/mL dry weight basis (DW)) was within the range from 5.4% to 14.9%, and the leaves of P. edulis and O. zeylanica showed a significantly higher (p < 0.05) inhibition levels. Percent inhibition of protein denaturation of these leafy types was within the range of 36.0–61.0%, and the leaf extract of C. auriculata has exhibited a significantly higher (p < 0.05) inhibition level. Proteinase inhibitory activity of these leaf extracts was within the range of 20.2–25.9%. The lipoxygenase inhibition was within the range of 3.7–36.0%, and the leaf extract of G. lactiferum showed an improved ability to inhibit lipoxygenase activity. In conclusion, results revealed that all the studied leaves possess anti-inflammatory properties at different levels, and this could be due to the differences in the composition and concentration of bioactive compounds.


Author(s):  
ELENA BERENICE GARCÍA-LÓPEZ ◽  
MAURICIO MUÑOZ-OCHOA ◽  
CLAUDIA J. HERNÁNDEZ-GUERRERO ◽  
ANTONIO NIETO-CAMACHO ◽  
CHRISTINE J. BAND-SCHMIDT

Objective: This study aimed to establish the anti-inflammatory potential of macroalgae from Baja California Sur, Mexico. Methods: The anti-inflammatory activity of the extracts from 10 macroalgae species was evaluated in vitro and in vivo. Dichloromethane, ethanolic, and aqueous extracts were obtained from each species. The criteria used to determine anti-inflammatory activity included 1) the membrane protection of human red blood cells (HRBCs) against hemolysis induced by hypotonicity, 2) the inhibition of heat-induced protein denaturation (IDP), and 3) the inhibition of mouse ear edema and the myeloperoxidase (MPO) enzyme. Results: The dichloromethane extracts of Gracilaria vermiculophylla and Opuntiella californica were the most active, both in vitro and in vivo. These extracts resulted in values of HRBC membrane protection above 95%, which were similar to those obtained with diclofenac sodium. And reduce the inflammation with edema inhibition percentage up to 60 % while the control indomethacin was able to inhibit edema by 82.3 %. Conclusion: The bioprospection of several macroalgae species from Bahía de La Paz, Mexico, allowed the identification of two species with promising anti-inflammatory activity. Gracilaria vermiculophylla showed interesting topical anti-inflammatory effects and a profile of compounds (flavonoids and terpenes) that may contribute to the potential biological properties of this seaweed. This study represents the first report of the anti-inflammatory potential of O. californica.


Author(s):  
Kamalakararao Konuku ◽  
Krishna Chaithanya Karri ◽  
Velliyur Kanniappan Gopalakrishnan ◽  
Zenebe Hagos ◽  
Haftom Kebede ◽  
...  

Objective: Manilkara zapota is a medicinal plant which is native to Mexico and Central America, and widely distributed in India. Various parts of this plant are traditionally used for treatment of several diseases, including inflammation-associated ailments. The main aim of the present study is to evaluate the anti-inflammatory potential of ethyl acetate and methanolic extracts of M. zapota leaf.Methods: In vitro secretary phospholipase A2 (PLA2) and 5-Lipoxygenase (5-LOX) assays and In vivo studies using carrageenan induced rat paw edema model were performed to assess the anti-inflammatory activity of M. zapota leaf extracts.Results: In vitro studies suggest that M. zapota leaf extracts exhibited significant SPLA2 and 5-LOX inhibitory activities. In in vivo studies M. zapota leaf extracts showed dose dependent inhibition of carrageenan induced paw edema in rats. The anti-inflammatory activity of ethyl acetate leaf extract was superior to methanolic extract.Conclusion: This study concluded that ethyl acetate leaf extract of M. zapotaexhibited significant anti-inflammatory activity and warranted further investigation to isolate and identify the components. 


2020 ◽  
Vol 10 (5) ◽  
pp. 213-218
Author(s):  
Sabrina Manel Kaddour ◽  
Lekhmici Arrar ◽  
Abderrahmane Baghiani

Arthrophytum scoparium is plant commonly used in folk medicine in Algeria to treat numerous human diseases especially infectious, Rheumatism, diabetes and cancer. However, its anti-inflammatory activity and the underlying mechanisms have not been studied systematically. The present study aims to assess both the in vitro and in vivo anti-inflammatory potential and antioxidant activity of the plant. Results showed that A. scoparium chloroform extract (ChE) contains the largest amount of phenolic and flavonoid compounds. In-vitro bioassay consisted of investigating the effect of the plant extracts against protein denaturation (BSA and egg albumin). In-vivo anti-inflammatory activity was evaluated by measuring the percentage inhibition of carrageenan-induced rat paw edema after oral administration of the extracts. Results showed that inhibition of protein denaturation was maximum in case of A. scoparium crude extract (CrE) with dose dependant manner. Similarly in the in-vivo study, carrageenan induced inflammation was significantly antagonized by CrE with inhibition of 87.02% at 400 mg/kg. CrE extracts showed the highest scavenger effect against hydroxyl and hydrogen peroxide. The CrE showed potent anti-inflammatory activity in both the conditions in vivo and in vitro. In conclusion different A. scoparium extracts scavenged reactive oxygen species efficiently; it may be due to the presence of its flavonoids and polyphenols. These results support the traditional use of this plant. Keywords: Arthrophytum scoparium, polyphenols, anti-inflammatory activity, radical scavenging activity.


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