scholarly journals ESTIMATION OF ANTI-INFLAMMATORY ACTIVITY AS WELL AS APOPTOTIC ACTIVITY OF ETHANOLIC EXTRACTS OF CROCUS SATIVUS

Author(s):  
B. Arirudran ◽  
P. Priyadharshini ◽  
US Mahadeva Rao

Inflammation is a body reaction which embroils cellular and biochemical responses, which is not only symptom for shared diseases but also known to be an initial phase for certain serious Alzheimer’s, cancer, heart vascular diseases. In order to overcome these drawbacks, there is an urgent need for nutraceuticals with excellent anti-inflammatory response with minimum side effects. Aim: An attempt has been made to evaluate the anti-inflammatory activity along with gene expression analysis on ethanolic extracts of Crocus sativus (CSEE). Dried stigmas of C. sativus were analyzed for anti-inflammatory activity by macrophage scavenging assay. In this study, the phagocytic activity of the extract was tested on oxidative burst reduction of macrophages. RT-PCR was performed to analyze the anti-apoptotic gene expression during cell death, as a result of the compound treatment on cancer cells. The CSEE unveiled high phagocytic activity on the oxidative burst reduction, presenting intracellular killing and the enhancement of lysosomal enzyme activity, showing the active degranulation of macrophages. These findings suggest that C. sativus possessed excellent anti-inflammatory as well as apoptotic activities. Hence it was proposed that C. sativus could be exploited against oxidative stress, anti-inflammatory, cancer and ageing therapy to justify their use in traditional medicine as a nutraceutical.

2014 ◽  
Vol 115 (suppl_1) ◽  
Author(s):  
Christina L Nemeth ◽  
Gretchen N Neigh

Silent brain infarction is a frequent complication of cardiac surgery and is associated with mood changes and cognitive disruption. Microsphere embolism (ME) rodent models recapitulate both the diffuse ischemic infarcts and the delayed subtle behavioral disturbances characteristic to silent infarction (SI). Previously, we have shown that ME leads to increased hippocampal inflammation, weakening of the blood brain barrier, and the infiltration of peripherally circulating inflammatory cells in rats. Given long-term increases in inflammatory activity following SI, the current study tests the efficacy of anti-inflammatory versus anti-depressant treatment strategies to reduce the inflammatory and behavioral sequelae of injury. Adult rats were administered either chronic meloxicam (preferential COX-2 inhibitor) or fluoxetine (SSRI) beginning five days prior to ME surgeries. After a two week recovery, animals were tested for anxiety-like behaviors in the open field paradigm and the hippocampus was examined for gene expression of inflammatory cytokines. Meloxicam treated animals showed a decrease in hippocampal gene expression of inflammatory markers (SPP1; p = 0.0272) and greater than a 3-fold change improvement in open field central tendency (p = 0.0003). No differences in inflammatory gene expression were observed in fluoxetine treated animals (SPP1; p = 0.3288); however, fluoxetine treatment resulted in a 2-fold change improvement in open field central tendency (p = 0.0138) suggesting that while both treatment strategies attenuate SI induced behavioral disruption, only meloxicam acts via inflammatory mechanisms. Given the long term negative consequences of increased central and peripheral inflammatory activity, the data suggest that anti-inflammatory therapeutic strategies may benefit patients at risk for SI as well as cardiac surgery candidates.


2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Nurinanda Prisky Qomaladewi ◽  
Nur Aziz ◽  
Mi-Yeon Kim ◽  
Jae Youl Cho

Piper cubebaL. is a plant in the Piperaceae family that is generally found in tropical countries and acts as an antioxidant and anti-inflammatory agent. Unfortunately, the molecular mechanism of the anti-inflammatory activity has not been fully investigated. In this study, we elucidated the anti-inflammatory mechanism by focusing on NF-κB signaling, which is considered a prototypical inflammatory signaling pathway in both innate and adaptive immune functions. Cellular activity and the molecular target of Pc-ME were identified in macrophage RAW264.7 cells and HEK293T cells by assessing NO production, cytokine expression by RT-PCR, luciferase gene reporter assay, and protein regulation in cytoplasm by Western blot upon NF-κB activation. Pc-ME reduced NO production without any cell toxicity; inhibited expression of proinflammatory cytokines such as iNOS and IL-6; downregulated NF-κB activation mediated by both MyD88 and TRIF; and diminished the phosphorylation of IκBα, IKKα/β, Akt, p85, Src, and Syk. Pc-ME inhibited Syk and Src autophosphorylation during overexpression in HEK cells, which confirmed our hypothesis that Syk and Src were signaling targets of Pc-ME. These findings indicate thatPiper cubebaL. has anti-inflammatory activity by targeting Src/Syk in the NF-κB pathway.


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 ◽  
Vol 11 (11) ◽  
pp. 4976
Author(s):  
Aleksandra Palatyńska-Ulatowska ◽  
Marta Michalska ◽  
Anna Drelich ◽  
Aleksandra Sałagacka-Kubiak ◽  
Ewa Balcerczak ◽  
...  

Vascular endothelial growth factor (VEGF)-induced angiogenesis contributes to inflammatory bone resorption in humans. Widely documented antagonists to resorption include antibiotics and non-steroidal anti-inflammatory drugs (NSAIDs). The purpose of this study was to investigate the effect of these drugs on proangiogenic VEGF levels in periradicular lesions. Periapical tissue biopsies were obtained from 42 patients with chronic periapical periodontitis. VEGF levels were measured using a commercial ELISA kit in patients divided into groups according to treatment: no drugs (control group, n = 25), NSAIDs (n = 7), antibiotics (n = 5), and NSAIDs and antibiotics (n = 5). Reverse transcriptase (RT) reaction was performed in all the samples under analysis. Presence of VEGFA and VEGFB gene expression was assessed using reverse-transcription-polymerase chain reaction (RT-PCR). ELISA analysis indicated that average VEGF levels in tissue samples of patients treated with NSAIDs (6.097 ± 1.930 ng/mL), antibiotics (5.661 ± 2.395 ng/mL), and NSAIDs and antibiotics (7.142 ± 2.601 ng/mL) were significantly lower than in samples of control patients (10.432 ± 4.257 ng/mL, ANOVA p = 0.008). The RT-PCR did not reveal VEGFA gene expression in any of the 42 samples. VEGFB gene expression was found in 26 of 42 samples (69.1%). The use of NSAIDs or antibiotics in patients with exacerbated chronic periodontitis decreases VEGF levels in periapical tissues. Pharmacotherapy may minimize the effects of VEGF on apical periodontitis progression in that way.


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