著者

Zhao-qiang Zhang Xiao Sun Xiang-lin Chi Xian-chang Sun Hong Jiang

出版者

Japan Brain Science society

雑誌

脳科学誌 (ISSN:13415301)

巻号頁・発行日

vol.40, pp.54-65, 2013-03-30 (Released:2017-06-01)

参考文献数

11

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Objective Modeling a stable and reproducible animal model of Parkinson's disease by rotenone intraperitoneal injection for further pathogenesis study of PD. Methods Twenty-seven male Wistar rats were used, which were randomly divided into three groups on average (Rotenone Injection, Vehicle Injection and Normal group). Rats of rotenone injection group (RIG) were administered rotenone (3.0 mg/kg/day) in a specialized vehicle through daily intraperitoneal injection; rats of vehicle injection group (VIG) were administered only special vehicle in the same way, rats of normal group (NG) didn't receive any injection. Checked the changes of its behavior and numbers of SNpc neurons to determine the model successful or not. Results Six rats of RIG developed part of Parkinson's symptoms at different time. All rats of RIG emerged behavioral deficits through rearing behavior testing and square bridge testing, and the mean number of SNpc neurons showed significant reduction. There were no behavioral deficits and changes of the mean number of SNpc neurons in rats of NG and VIG. Conclusion Model of Parkinson's disease by rotenone intraperitoneal injection was successfully established. This form of the rotenone model is stable and easy to reproduce, and may provide a new excellent supporter to related studies.

著者

Junping Kou Yun Ni Na Li Jingrong Wang Liang Liu Zhi-Hong Jiang

出版者

The Pharmaceutical Society of Japan

雑誌

Biological and Pharmaceutical Bulletin (ISSN:09186158)

巻号頁・発行日

vol.28, no.1, pp.176-180, 2005 (Released:2005-01-01)

参考文献数

29

被引用文献数

51 57

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The ethanol extract of Chinese medicinal ants Polyrhachis lamelliden was evaluated for its analgesic and anti-inflammatory activities in mice. It was shown that the extract significantly inhibited acetic acid-induced writhing response and increased hot-plate pain threshold of mice at doses of 1.5 and 3.0 g crude drug/kg. Meanwhile, the extract significantly inhibited the increase in vascular permeability induced by acetic acid and in ear edema induced by xylene in mice. However, it had no obvious effect on leukocyte migration induced by carboxymethylcellulose sodium (CMC-Na). The ethanol extract suspended in water was partitioned with diethyl ether, ethyl acetate and n-butanol successively to yield four fractions including water fraction. Among these fractions, diethyl ether and ethyl acetate fractions were found to increase hot-plate pain threshold and to inhibit acetic acid-induced writhing response in mice. Water fractions markedly inhibited acetic acid-induced writhing response and reduced the dye leakage to the peritoneal cavity induced by acetic acid and ear edema induced by xylene. These results suggest that P. lamellidens presents remarkable analgesic and anti-inflammatory activity, which supported the traditional use of the medicinal ants in the treatment of various diseases associated with inflammation. The diethyl ether fraction has greater contribution to the overall analgesic activity, whereas the water fraction showed the greatest anti-inflammatory and peripheral analgesic activities.

著者

Lei Zhang Baoli Zhang Ying Yu Jingfeng Wang Jian Wu Yangang Su Hong Jiang Yunzeng Zou Junbo Ge

出版者

International Heart Journal Association

雑誌

International Heart Journal (ISSN:13492365)

巻号頁・発行日

vol.62, no.1, pp.162-170, 2021-01-30 (Released:2021-01-30)

参考文献数

44

被引用文献数

5

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High-mobility group box 1 (HMGB1) is increased in the myocardium under pressure overload (PO) and is involved in PO-induced cardiac remodeling. The mechanisms of the upregulation of cardiac HMGB1 expression have not been fully elucidated. In the present study, a mouse transverse aortic constriction (TAC) model was used, and an angiotensin II (Ang II) type 1 (AT1) receptor inhibitor (losartan) or Ang II type 2 (AT2) receptor inhibitor (PD123319) was administrated to mice for 14 days. Cardiac myocytes were cultured and treated with Ang II for 5 minutes to 48 hours conditionally with the blockage of the AT1 or AT2 receptor. TAC-induced cardiac hypertrophy was observed at 14 days after the operation, which was partially reversed by losartan, but not by PD123319. Similarly, the upregulated HMGB1 expression levels observed in both the serum and myocardium induced by TAC were reduced by losartan. Elevated cardiac HMGB1 protein levels, but not mRNA or serum levels, were significantly decreased by PD123319. Furthermore, HMGB1 expression levels in culture media and cardiac myocytes were increased following Ang II treatment in vitro, positively associated with the duration of treatment. Similarly, Ang II-induced upregulation of HMGB1 in vitro was inhibited by both losartan and PD123319. These results suggest that upregulation of HMGB1 in serum and myocardium under PO, which are partially derived from cardiac myocytes, may be induced by Ang II via the AT1 and AT2 receptors. Additionally, amelioration of PO-induced cardiac hypertrophy following losartan treatment may be associated with the reduction of HMGB1 expression through the AT1 receptor.

著者

Zhong Qiu Liu Zhi Hong Jiang Kelvin Chan Hua Zhou Yuen Fan Wong Zhao Xiang Bian Hong Xi Xu Liang Liu

出版者

The Japanese Pharmacological Society

雑誌

Journal of Pharmacological Sciences (ISSN:13478613)

巻号頁・発行日

vol.104, no.3, pp.283, 2007 (Released:2007-07-24)

被引用文献数

1 1