scholarly journals Protective Effects of Anwulignan against HCl/Ethanol-Induced Acute Gastric Ulcer in Mice

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Jiawei Liu ◽  
Huijiao Lin ◽  
Liwei Yuan ◽  
Dan Wang ◽  
Chunmei Wang ◽  
...  

Gastric ulcer is one of the most common gastrointestinal diseases. Anwulignan (AN) is a major active component of Schisandra sphenanthera Rehd. This study was designed to evaluate the protective effect of AN against the acute gastric ulcer induced by HCl/ethanol in mice. The mice were given HCl/ethanol by gavage to establish an acute gastric ulcer model. Then, the serum and gastric tissue samples were taken for biochemical analyses. The results showed that the pretreatment with AN could significantly reduce the gastric ulcer index (GUI) and increase the ulcer inhibition rate, indicating that AN can protect against gastric ulcers. AN showed its antioxidant roles by decreasing the content of reactive oxygen species (ROS), malondialdehyde (MDA), and 8-hydroxydeoxyguanosine (8-OHdG) and increasing the activity of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) and anti-inflammatory roles by decreasing the content of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-1β (IL-1β), and myeloperoxidase (MPO) and increasing the content of interleukin-2 (IL-2), interleukin-4 (IL-4), interleukin-10 (IL-10), prostaglandin E2 (PGE2), and nitric oxide (NO) in both serum and gastric tissue. Furthermore, AN also activated the NRF2/ARE signaling pathway and inhibited the MAPK/NF-κB signaling pathway. AN improves the acute gastric ulcer induced by HCl/ethanol in mice, which may be mainly through its antioxidant capacity and anti-inflammatory effect.

2014 ◽  
Vol 95 (5) ◽  
pp. 642-645
Author(s):  
O V Skidanenko-Levina

Aim. To study the levels of pro- and anti-inflammatory cytokines in cervical secretion in females with cervical epithelial dysplasia and latent papillomavirus infection. Methods. The study included 120 females aged 20 to 40 years with cervical papillomavirus infection, who were assigned to two groups using «case-control» method. The first group included 60 females with latent disease, the second group - 60 females with mild and moderate cervical epithelial dysplasia (cervical intraepithelial neoplasia stages I and II). Cytokine levels in cervical secretion were measured by ELISA using «ProCon» test system. Results. ELISA test showed increased levels of interleukin-4 and interleukin-10 (43 [21; 74] and 48 [12; 88] pg/ml, respectively) and decreased levels of interleukin-2 (18.5 [5.5; 27.5] pg/ml), interleukin-6 (0.6 [0.06; 0.9] pg/ml), tumor necrosis factor alpha (88.5 [0; 123] pg/ml), interferon γ (2 [0; 4] pg/ml) in cervical secretion of females with cervical epithelial dysplasia compared to females with latent papillomavirus infection. Thus, females with cervical epithelial dysplasia showed increased levels of anti-inflammatory cytokines: interleukin-4 - by 2.7 times and interleukin-10 - by 2.4 times compared to females with latent disease, while levels of pro-inflammatory cytokines was decreased as following: interleukin-2 - by 1.4 times, interleukin-6 - by 4.5 times, tumor necrosis factor alpha - by 1.8 times, interferon γ - by 6.3 times (p 0.05). Conclusion. Imbalance of immune response cytokine regulation with anti-inflammatory cytokines prevailing might be an important factor facilitating persistence of papillomavirus in cervical epithelium and contributing to cervical epithelial dysplasia onset and progression.


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 263-263
Author(s):  
Sergey Shabunin ◽  
Vitaly Mikhalev

Abstract The aim of the study was to research the cytokine profile of cow blood in the treatment of acute postpartum endometritis with the use of recombinant α-, γ-interferons. Animals of the first group (n = 9) with a diagnosis of acute postpartum endometritis were intramuscularly injected with propranolol hydrochloride, denatured emulsified placenta, and nioxityl. Propranolol hydrochloride was administered for 4 days at a dose of 10 ml/animal at 24-hour intervals. The denatured emulsified placenta was injected subcutaneously on days 1-5-9 at a dose of 25 ml /animal. Nioxityl was injected intrauterine at a dose of 150 ml three times with a 48-hour interval. Cows of the second group (n = 11) with the same diagnosis were additionally injected intramuscularly with bovine recombinant α-, γ-interferons three times in 1–3 days at a dose of 5 ml/animal, 1 cm3 of which contains at least 1x104 IU/cm3 of the total antiviral activity of bovine recombinant α-, γ-interferons. Blood samples are taken from all groups before and at the end of the experiment. Blood samples are examined for the content of interleukin-2 (IL-2), interleukin-4 (IL-4), tumor necrosis factor alpha (TNFα), interleukin-10 (IL-10) using Bovine Elisa Kit Clood-Clone Corp (USA). The therapeutic effectiveness in the first group was 77.8%, in the second - 90.9%, which is 13.1% more. At the end of the course, the level of IL-2 decreased by 42.5% (43.5±4.2 pg/ml, P < 0.01), TNF-Α by 9.1% (457.9±34.6 pg/ml), the level of IL-4 increased by 14.8% (44.2±3.5 pg/ml, P < 0.05), IL-10 by 56.6% (35.7±2.8 pg/ml, P < 0.01). In the second group, the level of anti-inflammatory cytokines decreased: IL–2 by 48.7% (38.8±1.6 pg/ml, P < 0.01), TNFα by 26% (372.5±17.6 pg/ml, P < 0.05) and increased anti–inflammatory cytokines: IL-4 by 46.2% (56.3±4.1 pg/ml, P < 0.001) and IL-10 by 80.3% (41.1±3.5 pg/ml, P < 0.001), which indicates a decrease in the inflammatory response.


2018 ◽  
Vol 38 (5) ◽  
pp. 510-518 ◽  
Author(s):  
HM Hafez ◽  
MA Morsy ◽  
MZ Mohamed ◽  
NM Zenhom

Paeonol, a natural phenolic compound, possesses diverse beneficial effects including antioxidant and anti-inflammatory effects. Gastric ulcer is still the most prevalent irritant illness among the gastrointestinal diseases. The present study explored the protective effect of paeonol at two dose levels in indomethacin (IND)-induced gastric ulcer in rats. Forty-eight male Wistar rats were arranged into six groups: control, paeonol-treated, IND-treated, IND/paeonol (low and high doses)-treated, and ranitidine-treated groups. The oxidative status was evaluated by determining malondialdehyde level, superoxide dismutase activity, reduced glutathione content as well as hemoxygenase-1 (HO-1) gene expressions, and the antioxidant protein; NAD(P)H quinone oxidoreductase 1 (NQO1) immunostaining. The pro-inflammatory genes nuclear factor κB (NF-κB) and interleukin 1β (IL-1β) were estimated together with the proapoptotic gene of caspase 3. IND caused multiple gastric ulcers with evident oxidative damage and elevated pro-inflammatory and proapoptotic markers. Paeonol protected significantly, in a dose-dependent manner, the gastric mucosa from ulcerative lesion of IND similar to the reference drug ranitidine. Paeonol pretreatment diminished gastric oxidative stress and restored the gastric antioxidant capacity by elevating gastric gene expression of HO-1 and protein expression of NQO1. Paeonol also reduced NF-κB, IL-1β, and caspase 3 gene expressions. In conclusion, paeonol offered a gastroprotection dependent on its antioxidant, anti-inflammatory, and antiapoptotic effects.


2014 ◽  
Vol 5 ◽  
Author(s):  
Piyali Chatterjee ◽  
Valorie L. Chiasson ◽  
Kelsey R. Bounds ◽  
Brett M. Mitchell

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Xin Chen ◽  
Lijuan Hu ◽  
Huanhuan Wu ◽  
Wei Liu ◽  
Shuhe Chen ◽  
...  

Chronic gastritis and gastric ulcers are prevalent throughout the world and are considered to be a global health problem. Modified Xiaochaihutang (MXCHT) prescription is broadly used in traditional medicine hospital for the treatment of gastritis. In order to assess the anti-Helicobacter pylori (H. pylori) effect of MXCHT, agar diffusion method in vitro and fluid dilution method for the minimal inhibitory concentration (MIC) were established. The anti-inflammatory effects were then evaluated using mouse ear edema model and rat paw edema model. The ethanol-induced gastric ulcer method was employed to verify the gastroprotective effect of active extracts in MXCHT. HPLC-TOF-MS/MS was used for analyzing the possible active constituents after oral administration of effective extracts in ethanol-induced gastric ulcer models. MXCHT and 4 different extracts of the bacterial inhibition diameter and MIC were dramatically decreased compared with control group, showing anti-Helicobacter pylori effects. High dose groups of MXCHT, water extract, EtOAc extract, and n-BuOH extract displayed significant anti-inflammatory effects in xylene-induced mouse ear edema model and carrageenan-induced rat paw edema model test. MXCHT and all active extracts exhibited gastroprotective activity and prevented gastric lesions induced by ethanol in rats. 4 prototype components and 4 metabolites were identified after oral administration of EtOAc extract. In addition, 6 prototype components and 6 metabolites were identified in n-BuOH extract. MXCHT, EtOAc extract, and n-BuOH extract demonstrate gastroprotective effects through anti-Helicobacter pylori and anti-inflammatory activities. Thus, this prescription may be a suitable natural source for the prevention and treatment of chronic gastritis and gastric ulcers.


Author(s):  
O. P. Popova ◽  
M. S. Blyakher ◽  
I. M. Fedorova ◽  
S. I. Koteleva ◽  
I. V. Kapustin

The article presents a comparative analysis of the cytokine network in 161 patients with pertussis under the age of 1 year and in 180 patients over the age of 1 year. The studies revealed lower production of immunoregulatory cytokines (interferon-γ and interleukin-2) in patients under the age of 1 year at all stages of the disease and with all variants of pertussis (both mono- and mixed infections). The researchers revealed the relationship between the level of interferon-γ production and the severity of pertussis. They revealed age differences in the interferon-8 production in patients with mixed infection, which can determine clinical features and cause bronchopulmonary complications. The authors demonstrated the features of the dynamics of spontaneous and induced production of interleukin-6 and anti-inflammatory cytokines (interleukin-4, interleukin-10) in children under the age of 1 year; these features can be considered as immunological markers determining the imperfection of the humoral response in patients with pertussis in this age group.


Blood ◽  
1997 ◽  
Vol 89 (5) ◽  
pp. 1621-1628 ◽  
Author(s):  
Hiroaki Niiro ◽  
Takeshi Otsuka ◽  
Kenji Izuhara ◽  
Kunihiro Yamaoka ◽  
Koichi Ohshima ◽  
...  

Neutrophils are important effector cells of acute inflammation because of their potential capacity to synthesize various proinflammatory mediators, and inhibition of their production is expected to result in anti-inflammatory effects. In this study, we investigate the effects of the anti-inflammatory cytokines, interleukin-10 (IL-10) and IL-4, on prostanoid synthesis in human neutrophils. Neutrophils isolated from healthy donors constitutively produced a small amount of prostaglandin E2 (PGE2 ) without any stimulations, whereas they produced a large amount of PGE2 after lipopolysaccharide (LPS) stimulation. IL-10 and IL-4 selectively inhibited their LPS-induced PGE2 production. Inhibition by both cytokines occurred at an early stage of LPS stimulation. Anti–IL-10 treatment of LPS-stimulated neutrophils resulted in enhanced PGE2 production. LPS-induced PGE2 and thromboxane B2 (TXB2 ) production in aspirin-treated neutrophils was significantly inhibited by IL-10, IL-4, and NS-398. Moreover, IL-10 and IL-4 inhibited LPS-induced cyclooxygenase (COX) activity in neutrophils. Western blot and immunocytochemical analysis showed that COX-2 protein was clearly induced in LPS-stimulated neutrophils and that its induction was inhibited by both IL-10 and IL-4. Moreover, both of these cytokines inhibited COX-2 mRNA expression in LPS-stimulated neutrophils. These results raise the possibility that these two cytokines may both offer potent clinical utility as anti-inflammatory agents in the future.


2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Canhong Wang ◽  
Deqian Peng ◽  
Yangyang Liu ◽  
Yulan Wu ◽  
Peng Guo ◽  
...  

Background. Agarwood has been used for centuries, especially for treatment of gastrointestinal diseases. Earlier studies of our laboratory suggested that agarwood alcohol extracts (AAEs) provided gastric mucosal protection. This study aims to investigate the ameliorative effect of AAEs on ethanol-induced gastric ulcers and its mechanism. Methods. Mice were given agarwood induced by the whole-tree agarwood-inducing technique alcohol extract (WTAAE, 0.71, 1.42, and 2.84 g/kg), wild agarwood induced by axe wounds alcohol extract (WAAE, 2.84 g/kg), and burning-chisel-drilling agarwood alcohol extract (FBAAE, 2.84 g/kg) orally, respectively. After 7 days’ pretreatment with AAEs, the gastric ulcers were induced by absolute ethanol. The ulcer index, gastric histopathology, biochemical parameters, and inflammatory proteins were evaluated. Results. Pharmacological results showed AAEs (1.42 and 2.84 g/kg) reduced the gastric occurrence and ulcer inhibition rates up to more than 60%. AAEs decreased the level of nitric oxide (NO) and increased glutathione (GSH) and superoxide dismutase (SOD) levels. Besides, AAEs decreased the levels of interleukin-1β (IL-1β) and interleukin-6 (IL-6), but the interleukin-10 (IL-10) was upregulated. The expressions of nuclear factor kappa B (NF-κB) and phosphorylated protein 38 (p-P38) were inhibited. The effect of WTAAE was better than that of FBAAE and similar to that of WAAE at the dose of 2.84 g/kg. Conclusions. These results demonstrate that agarwood alleviates the occurrence and development of gastric ulcers via inhibiting oxidation and inflammation.


Molecules ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 15 ◽  
Author(s):  
Beibei Zhang ◽  
Mengnan Zeng ◽  
Meng Li ◽  
Yuxuan Kan ◽  
Benke Li ◽  
...  

Corydalis humosa Migo is a traditional Chinese medicine that clears away damp heat, relieves sore. Protopine (PRO) is an alkaloid component isolated from C. humosa Migo. However, the role of protopine in acute kidney injury (AKI) has not yet been reported. This study aims to investigate the effect and mechanism of protopine isolated from C. humosa Migo on lipopolysaccharide (LPS)-induced AKI in mice. Inflammation accumulation was assessed by small animal living imaging. The blood urea nitrogen (BUN), and serum creatinine (Scr) were measured to assess the effects of protopine on renal function in LPS-induced AKI. The levels of tumor necrosis factor (TNF), interleukin-2 (IL-2), interferon-γ (IFN-γ), and (interleukin-10) IL-10 in serum were detected by cytometric bead array. Flow cytometry was used to detect the levels of reactive oxygen species (ROS) in primary kidney cells. The proportions of granulocytes, neutrophils, and macrophages in peripheral blood were examined to evaluate the effect of protopine on immune cells in mice with AKI. Toll-like receptor (TLR4) and apoptotic signaling pathway were detected by Western blot analysis. The results showed that protopine markedly improved the renal function, relieve inflammation, reversed inflammatory cytokines, transformed apoptosis markers, and regulated the TLR4 signaling pathway in mice with AKI induced by LPS. The protopine isolated from C. humosa Migo protected mice against LPS-induced AKI by inhibiting apoptosis and inflammation via the TLR4 signaling pathway, thus providing a molecular basis for a novel medical treatment of AKI.


2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Quanxin Ma ◽  
Kai Wang ◽  
Qinqin Yang ◽  
Shun Ping ◽  
Weichun Zhao ◽  
...  

Veronicastrum axillare is a traditional medical plant in China which is widely used in folk medicine due to its versatile biological activities, especially for its anti-inflammatory effects. However, the detailed mechanism underlying this action is not clear. Here, we studied the protective effects of V. axillare against acute lung injury (ALI), and we further explored the pharmacological mechanisms of this action. We found that pretreatment with V. axillare suppressed the release of proinflammatory cytokines in the serum of ALI mice. Histological analysis of lung tissue demonstrated that V. axillare inhibited LPS-induced lung injury, improved lung morphology, and reduced the activation of nuclear factor-κB (NF-κB) in the lungs. Furthermore, the anti-inflammatory actions of V. axillare were investigated in vitro. We observed that V. axillare suppressed the mRNA expression of interleukin-1β (IL-1β), IL-6, monocyte chemotactic protein-1 (MCP-1), cyclooxygenase-2 (COX-2), and tumor necrosis factor-α (TNF-α) in RAW264.7 cells challenged with LPS. Furthermore, pretreatment of V. axillare in vitro reduced the phosphorylation of p65 and IκB-α which is activated by LPS. In conclusion, our data firstly demonstrated that the anti-inflammatory effects of V. axillare against ALI were achieved through downregulation of the NF-κB signaling pathway, thereby reducing the production of inflammatory mediators.


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