John Jackson, analyst at IDC, said BlackBerryâs decision to stop making devices was âentirely sensible and probably overdueâ. CMC Markets said the death of the BlackBerry handset marked the end of an era for a company once considered one of the worldâs major smartphone vendors.
The damage to glomerular artery and nephrons due to hypertension is focal, but kidney function decline in the late term is progressive. On one hand, high blood pressure can impair kidneys, and kidney damage aggravates hypertension; they two form a vicious circle, and cause pathological changes in normal small artery and nephrons. On the other hand, hypertension induced nephrons injury can cause compensatory high perfusion and high filtration in remaining normal nephrons.
The function of renin affects kidney filtration balances. An increase in renin levels may result in increased thirst. Some anti-hypertensive drugs are based on a renin-angiotensin system.Some research suggests that the long-term use of anti-hypertensive drugs could actually increase the body's production of renin.he function of renin is to restore normal blood pressure, thereby increasing filtration rates of water and solutes in the kidney tubules, so that filtration proceeds in proper balance.