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.
Narrowing of the arteries that carry blood to the kidneys can also cause high blood pressure, as this tricks the kidneys into thinking blood pressure is low, and they respond by releasing hormones to raise blood pressure. This is a condition known as renovascular hypertension.ost people with hypertension have the primary form. This type of high blood pressure is caused by high-salt diets, being overweight, or using alcohol or tobacco. Some medications can also cause it, and it can be genetic. Secondary hypertension is different and is related to an underlying condition.