Potassium Channel Activation Is Involved in the Cardiovascular Effects Induced by Freeze Dried Syzygium jambolanum (Lam.) DC Fruit Juice
المؤلفون المشاركون
Medeiros, Isac Almeida de
Assis, Kívia S.
Araújo, Islania G. A.
de Azevedo, Fátima de L. A. A.
Maciel, Priscilla M. P.
Machado Calzerra, Natália T.
da Silva, Tays A. F.
Assis, Valéria L.
de Vasconcelos, Aliny P.
Santos, Carlos A. G.
Meireles, Bruno R. L. A.
Cordeiro, Angela M. T. M.
Araújo, Demetrius A. M.
Ribeiro, Thais P.
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-10-08
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
This work aimed to explore the cardiovascular effects induced by freeze-dried juice from Syzygium jambolanum (Lam.) DC fruits (JSJ).
JSJ presented high polyphenol content and steroids.
HPLC analysis revealed that 2,5-dihydroxybenzoic and caffeic acid were present in higher amounts in the JSJ extract.
In rat, JSJ induces hypotension and vasodilatation in mesenteric arteries, with or without vascular endothelium.
JSJ-mediated vasodilation response against contractions induced with KCl (60 mM) depolarizing solution was significantly lower than the responses induced by JSJ when evaluated against phenylephrine-induced contractions.
To investigate the involvement of potassium channels we used Tyrode’s solution with KCl (20 mM) or tetraethylammonium (1.0, 3.0, or 5.0 mM).
In these conditions JSJ-induced effects were significantly attenuated.
To investigate the potassium channel subtypes involved in the response, we used 4-aminopyridine, glibenclamide, BaCl2, and iberiotoxin.
In the presence (simultaneous) of different potassium channel blockers we observed a significant attenuation of JSJ-induced effect.
Inhibition was also observed when using BaCl2, glibenclamide, or 4-aminopyridine, separately.
However, incubation with iberiotoxin did not promote changes in either maximum effect, or potency.
We also evidenced a discrete participation of CaV channels in the JSJ-induced vasorelaxant effect.
In addition, patch-clamp studies demonstrated that JSJ could activate potassium channels.
In conclusion, JSJ promotes hypotension and vasorelaxation in rats, involving, at least, the activation of potassium channels.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Assis, Kívia S.& Araújo, Islania G. A.& de Azevedo, Fátima de L. A. A.& Maciel, Priscilla M. P.& Machado Calzerra, Natália T.& da Silva, Tays A. F.…[et al.]. 2018. Potassium Channel Activation Is Involved in the Cardiovascular Effects Induced by Freeze Dried Syzygium jambolanum (Lam.) DC Fruit Juice. BioMed Research International،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1126930
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Assis, Kívia S.…[et al.]. Potassium Channel Activation Is Involved in the Cardiovascular Effects Induced by Freeze Dried Syzygium jambolanum (Lam.) DC Fruit Juice. BioMed Research International No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1126930
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Assis, Kívia S.& Araújo, Islania G. A.& de Azevedo, Fátima de L. A. A.& Maciel, Priscilla M. P.& Machado Calzerra, Natália T.& da Silva, Tays A. F.…[et al.]. Potassium Channel Activation Is Involved in the Cardiovascular Effects Induced by Freeze Dried Syzygium jambolanum (Lam.) DC Fruit Juice. BioMed Research International. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1126930
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1126930
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر