[Angiotensin].

Endothelial Vasodilator Angiotensin Receptors are Changing in Mice with Ageing

Background: The vascular function of Angiotensin II-type-2 receptors in adults is controversial. We sought their location and function in mouse aortic rings at young and old mice. Materials and Methods: Male C57Bl mice (aged 4 and 14 months) were killed by CO2. The descending thoracic aorta was cleaned and dissected into rings. Aortic rings were mounted in Krebs’ solution at 37 °C an...

Effect of Angiotensin II on Blood Flow in Acute and Chronically Inflamed Knee Joints of Rabbits: The Role of Nitric Oxide

Background: Angiotensin converting enzyme (ACE) upregulation in stromal cells of joints affected by rheumatoid arthritis may lead to higher tissue angiotensin II that is a vasoconstrictor and mitogen factor. To date, the role of angiotensin II on regulating blood flow in inflamed joints has not been studied. Methods: Acute and chronic joint inflammation was induced in rabbits by intra-articular...

Serum Angiotensin Converting Enzyme in Patients with Psoriasis

Background: Controversial data concerning the elevation of serum angiotensin-converting enzyme in psoriasis are reported in the literature. In order to verify whether this abnormality exists in Iranian patients, we performed this study. Method: Serum angiotensin-converting enzyme level was measured in 40 psoriatics. According to clinical forms of psoriasis, patients were further divided into th...

The effects of Mas receptor antagonist (A779) and renal perfusion pressure on serum nitrite concentration in male and female rats when angiotensin II receptors 1 & 2 were blocked

Introduction: Renin angiotensin system has an important role in blood pressure and renal functions. Active angiotensin-converting enzyme 2 converts angiotensin I into angiotensin-(1-7) which is a vasodilator hormone and interacts with nitric oxide changes as well as other angiotensin II receptors. In this study we evaluated the role of Mas receptor antagonist (A779) and renal perfusion press...

بررسی پاسخدهی عروق مزانتر به آنژیوتانسین I و II در خلال ایجاد پرفشاری خون دو کلیه ای گلدبلات و اثر کاپتوپریل بر آن

Essential hypertension is one of the risk factors of cardiovascular diseases. Hypertension etiology is not completely known, it seems that rennin-Angiotensin system has an important role in its etiology, Thus better recognition of this system and its activity changes or vascular reaction changes to different parts of this system during progressive hypertension can be more effective in better re...

Angiotensin Converting Enzyme in Sarcoidosis