scholarly journals Centella Asiatica (GOTU KOLA) TREATMENT ATTENUATES PRO-INFLAMMATORY MEDIATORS IN LIVER OF RATS WITH ELECTRICAL FOOT SHOCK STRESS MODEL

2020 ◽  
Vol 17 (2) ◽  
pp. 1-7
Author(s):  
Dwi Cahyani Ratna Sari ◽  
Wiwit Ananda Wahyu Setyaningsih ◽  
Rizky Nur Mainichi ◽  
Gita Mumtarin Dara ◽  
Ratih Kemalasari ◽  
...  
Keyword(s):  
Inflammatory Mediators ◽  
Adrenergic Receptor ◽  
Centella Asiatica ◽  
Control Group ◽  
Stress Model ◽  
Down Regulation ◽  
Stress Group ◽  
Tnf Α ◽  
Β2 Adrenergic Receptor ◽  
Shock Stress

Background: Stress induces secretion of cathecolamines and glucocorticoids, which may produce liver injury. Followed by the production of inflammatory mediators, it causes apoptosis. Centella asiatica (CeA) has anti-inflammatory and hepatoprotective effects. The present study aims to determine the role of CeA in the attenuation of liver pro-inflammatory mediator expression in rats with electrical foot shock stress model. Materials and Methods: Twenty-four Sprague-Dawley rats were randomized into four groups consisted of six rats each: (1) Control group, (2) CeA-treated group, (3) Stress group, and (4) CeA + stress group. Reverse transcriptase PCR of inflammatory and apoptosis markers as well as Real-Time PCR of β2-adrenergic receptor were performed from liver tissues. Results: Electrical foot shock stress induced up-regulation of NFκB and TNF-α mRNA expressions as pro-inflammatory mediators, compared to control group. This alteration was followed by up-regulation of BAX and β2-adrenergic receptor, as well as the down-regulation of BCl2 compared to control. CeA treatment prevented enhancement of NFκB, TNF-α, TLR-4 and β-adrenergic receptor mRNA expressions, which was followed by down-regulation of BAX and up-regulation of BCl-2, compared to stress group. Conclusion: CeA prevents secretion of pro-inflammatory chemokines and cytokines as well as apoptotic markers in liver cells through the activation of β2-adrenergic receptor.

scholarly journals Role of Clathrin-mediated Endocytosis in Agonist-induced Down-regulation of the β2-Adrenergic Receptor

1998 ◽  
Vol 273 (12) ◽  
pp. 6976-6981 ◽  
Author(s):  
Alison W. Gagnon ◽  
Lorena Kallal ◽  
Jeffrey L. Benovic
Keyword(s):  
Adrenergic Receptor ◽  
Down Regulation ◽  
Β2 Adrenergic Receptor

scholarly journals The effect of ethanol extract of pegagan (Centella asiatica) on the performance of Wistar rats after restraint stress

2010 ◽  
Vol 8 (1) ◽  
pp. 11-16
Author(s):  
BAARID LUQMAN HAMIDI ◽  
SAMIGUN SAMIGUN ◽  
ANIK LESTARI
Keyword(s):  
Restraint Stress ◽  
Wistar Rats ◽  
Radial Maze ◽  
Centella Asiatica ◽  
Ethanol Extract ◽  
The Body ◽  
Control Group ◽  
Error Type ◽  
Stress Group ◽  
Significant Difference

Hamidi BL, Samigun, Lestari A. 2010. The effect of extract ethanol of pegagan (Centella asiatica) on the performance of Wistar rats after restraint stress. Biofarmasi 8: 11-16. The aim of this research was to investigate the effects of extract ethanol of pegagan (Centella asiatica) after treated with restraint stress by measuring the eight arms radial maze performance of rats. Pre-test and post-test controlled groups design was applied in this research. Male Wistar rats (Rattus novergicus) with the mean age of 8 weeks and the body weight of 150-200 grams which used for sample were divided randomly into 4 groups, each group consisted of 6 rats, i.e. (i) control group (without any treatment), (ii) stress group (it was given by restraint stress for 2 hours/day for each rat), (iii) pegagan group (it was given by 0.3 mg/g BW/day/rat extract ethanol of pegagan), and (iv) pegagan and stress group (it was given by 0.3 mg/g BW/day/rat extract ethanol of pegagan and restraint stress for 2 hours/day for each rat). The treatments were given for 21 days. Within 12 days for each pre-treatment and post-treatment, a test on the eight arm radial maze was conducted on individual rat to observe its performance. The assessment of rat performance in the eight arms radial maze test was conducted based on error type B. Kruskal-Wallis and Mann-Whitney tests with SPSS for Windows 16 version were applied to analyze statistically the difference between four groups. Kruskal-Wallis test was used to show the significant performance level difference between four groups of rats with p=0.001, while Mann-Whitney test was used to determine the significant difference between stress group and pegagan group (p=0.001), also stress group and pegagan and stress group (p=0.001). The result of research showed that there was no significant difference between control group and stress group (p=0.051), control group and pegagan group (p=0.143), control group and pegagan and stress group (p=0.143), also pegagan group and pegagan and stress group (p=0.952). It was concluded that extract ethanol of pegagan improved the performances of rats on the eight arms radial maze after treated with restraint stress.

scholarly journals Heat stress combined with lipopolysaccharide alter the activity and superficial molecules of peripheral monocytes

2019 ◽  
Vol 33 ◽  
pp. 205873841982889
Author(s):  
Jiajing Luo ◽  
Yi Chen ◽  
Chengjia Ding ◽  
Jialing Qiu ◽  
Yulan Chen ◽  
...  
Keyword(s):  
Flow Cytometry ◽  
Heat Stress ◽  
Western Blot ◽  
Inflammatory Mediators ◽  
Peripheral Blood ◽  
Heat Stroke ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Rt Pcr ◽  
Tnf Α

The purpose of this study was to focus on the underlying relationship between the hyperactivity for the peripheral monocytes and heat stroke by investigating the inflammatory oxidative activity of and the expression of superficial molecules. Peripheral blood samples were collected from 10 healthy adult volunteers. Human blood monocytes were isolated by density gradient centrifugation and sequent adherent culture. The objectives were divided into four groups: 43°C heat stress combined with lipopolysaccharide (LPS) group, 43°C heat stress group, LPS group, and control group. There were 10 cases in each group. An enzyme-linked immunosorbent assay (ELISA) test was used to measure the concentrations of supernatant inflammatory mediators (tumor necrosis factor alpha (TNF-α), interleukin-1β (IL-1β) and interleukin-10 (IL-10)). After loaded by 2,7-Dichlorodi-hydrofluorescein-diacetate (DCFHDA) fluorescent probe, intracellular reactive oxygen species (ROS) levels were determined by a flow cytometry. After fluorescent microspheres incubation, the phagocytosis of monocytes was observed under a fluorescent microscope. Respectively, the flow cytometry and Western blot were used to evaluate the level of triggering receptor expressed on myeloid cells-1 (TREM-1) and Toll-like receptor-4 (TLR-4) on the monocytes. Furthermore, the mRNA expression of TREM-1 and TLR-4 was detected by real-time polymerase chain reaction (RT-PCR). The heat stress combined with LPS stimulation promoted the peripheral monocytes to produce inflammatory mediators (TNF-α, IL-1β, and IL-10) and release ROS. Otherwise, such complex strike significantly suppressed the phagocytic activity of monocytes in peripheral blood. Moreover, the expression of TREM-1, TLR-4 and CD86 was measured by the flow cytometry on peripheral monocytes which were respectively promoted by the union of heat stress and LPS. The results of Western blot and RT-PCR demonstrated the similar kinetics on these superficial molecules (TREM-1, TLR-4, and CD86) stimulated by the combination of heat stress and LPS. The underlying mechanism of the dysfunction for the peripheral monocytes may be related to the abnormal expression of superficial molecules TREM-1, TLR-4, and CD86 on the monocytes induced by heat stress and LPS.

scholarly journals Does thyroid dysfunction influence inflammatory mediators in experimental periodontitis?

2021 ◽  
Vol 55 (3) ◽  
pp. 131-141
Author(s):  
Vitaliy Shcherba ◽  
Inna Krynytska ◽  
Mariya Marushchak ◽  
Mykhaylo Korda
Keyword(s):  
Inflammatory Cytokines ◽  
Inflammatory Mediators ◽  
Thyroid Dysfunction ◽  
Solid Phase ◽  
White Male ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Group Iii ◽  
Group I ◽  
Tnf Α

Abstract Objective. The aim of the present study was to investigate the presence of inflammatory mediators in rats with only periodontitis and periodontitis in a setting of hyper- and hypo-thyroidism and to analyze the correlative linkages between inflammatory mediators and thyroid hormones. Methods. White male 12–14 weeks old inbred rats (n=48) weighing 180–200 g were employed in the experiment. They were randomly divided into the following groups: Group I – control group, Group II – group with a model of periodontitis, Group III – group with a periodontitis in a setting of hyperthyroidism, and Group IV – group with periodontitis in a setting of hypothyroidism. The presence of tumor-necrosis factor-α (TNF-α) and interleukins IL-1β and IL-10 in the periodontal homogenate supernatant was studied by a solid-phase enzyme-linked immunosorbent assay. Results. It was shown that experimental lipopolysaccharide (LPS)-induced periodontitis is accompanied by hyperproduction of pro-inflammatory cytokines (TNF-α, IL-1β) and reduction of anti-inflammatory cytokines (IL-10), whereas TNF-α underwent to maximum changes. Thyroid dysfunction exacerbates cytokine imbalance and severity of inflammation in experimental LPS-induced periodontitis, especially pronounced at hyperthyroidism, as evidenced by the predominance of TNF-α and IL-1β levels in the periodontal homogenate supernatant by 38.5% (р<0.01) and 75.6% (p<0.001), respectively, hyperthyroid over the euthyroid, and by 20.1% (p<0.05) and 24.1% (p<0.05), respectively, over the hypothyroid rats. Conclusions. Thyroid dysfunction, especially hyperthyroidism, may play an important role in the pro-inflammatory response in periodontitis. Hyperproduction of inflammatory mediators in thyroid dysfunction can induce a noticeable damage in the whole apparatus of the periodontium, thereby causing progression of periodontitis.

scholarly journals Anti-Inflammatory Effect of Centella asiatica (L.) Extract by Decreasing TNF-α Serum Levels in Rat Model of Traumatic Brain Injury

2021 ◽  
Vol 53 (2) ◽  
Author(s):  
Nafiisah Nafiisah ◽  
◽  
Falah Faniyah ◽  
Yoga Mulia Pratama
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Rat Model ◽  
Alternative Therapy ◽  
Centella Asiatica ◽  
Serum Levels ◽  
Control Group ◽  
Inflammatory Reactions ◽  
Experimental Animals ◽  
Tnf Α

Centella asiatica (L.) has many active ingredients with many important roles, including as antioxidant, anti-inflamation and neuroprotectant. Centella asiatica (L.) can reduce inflammatory reactions by inhibiting the activity of TNF-α. Thus, Centella asiatica (L.) is a potential alternative therapy for traumatic brain injury by reducing inflammation via TNF-α expression modulation. This study aimed to determine the effect of Centella asiatica (L.) on serum TNF-α levels in rat model of traumatic brain injury. This study was conducted during the period of July 3-17, 2020 at the LPPT Unit IV, Gajah Mada University. This was a true experimental with post-test only control group study on 35 male wistar rats as the experimental animals. The rats were divided into 5 groups: P1, P2, and traumatic brain injury groups that received Centella asiatica (L.) treatement at 150, 300, and 600mg/kgBW/d doses, respectively. Blood samples were collected after the experimental animals were terminated to assess serum TNF-α levels. Mean TNF-α levels were 60,980±4,057, 76,931±0,698, P3=75,889±0,948, P4=75,868±1,163, and 74,508±1,126 for P1, P2, P3, P4, and P5, respectively. The Kruskal Wallis test results showed a statistically different between groups (p = 0.005). This study shows that Centella asiatica (L.) can decrease serum TNF-α level in rat model of traumatic brain injury.

scholarly journals A novel EST‐derived RNAi screen reveals a critical role for farnesyl diphosphate synthase in β2‐adrenergic receptor internalization and down‐regulation

2012 ◽  
Vol 26 (5) ◽  
pp. 1995-2007 ◽  
Author(s):  
Xiaofeng Jiang ◽  
Hui Pan ◽  
Joseph F. Nabhan ◽  
Ramaswamy Krishnan ◽  
Cynthia Koziol‐White ◽  
...  
Keyword(s):  
Adrenergic Receptor ◽  
Critical Role ◽  
Rnai Screen ◽  
Farnesyl Diphosphate ◽  
Receptor Internalization ◽  
Farnesyl Diphosphate Synthase ◽  
Down Regulation ◽  
Β2 Adrenergic Receptor
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