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新種の光るクモヒトデ発見…中部大チーム、海底洞窟で (読売新聞)

オーストラリアのクリスマス島の海底洞窟で、新種の光るクモヒトデを発見したと、中部大の大場裕一教授(発光生物学)らの研究チームが発表した。シンガポールの学術誌に論...

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Antioxidative and Cardioprotective Effects of Bee Pollen Extract on Isoprenaline-Induced Myocardial Infarction in Rats.

著者 Shen Z , Geng Q , Huang H , Yao H , Du T , Chen L , Wu Z , Miao X , Shi P
Molecules.2019 Mar 20 ; 24(6):.
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Oxidative stress plays an important role in the pathogenesis of myocardial infarction (MI). bee pollen extract (SCBPE) possesses powerful antioxidant capacity. This study aimed to further explore the antioxidative and cardioprotective effects of SCBPE on acute MI induced by isoprenaline (ISO) in rats. The rats were intragastrically administrated with SCBPE (600, 1200, or 1800 mg/kg/day) and Compound Danshen dropping pills (270 mg/kg/day) for 30 days, then subcutaneously injected with ISO (65 mg/kg/day) on the 29th and 30th day. Compared with the model group, pretreatment with middle and high doses of SCBPE significantly reduced serum aspartate transaminase, lactate dehydrogenase, and creatine kinase activities and increased myocardial superoxide dismutase, glutathione peroxidase, and catalase activities. The histopathologic aspects showed that pathological heart change was found in the model group and reduced to varying degrees in the SCBPE groups. Moreover, the protein expression of nuclear factor-erythroid 2-related factor 2 (Nrf-2), heme oxygenase-1 (HO-1), and Bcl2 in the heart increased in the SCBPE groups, while that of Bax decreased compared to the model group. Besides this, uridine was isolated from bee pollen for the first time. This study could provide a scientific basis for using bee pollen as a functional food for the prevention of MI.
PMID: 30897711 [PubMed - in process]
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