SjoegrenâsjÃ¶gren (s PRONOUNCED-showâgrin) s is a chronic autoimmune disease in which aâperson s immune system turns against and attacks theâbody s own. Cells Inâsjoegren, sjÃ¶gren s white blood cells-attack moisture, producing glands such as the tear ducts and, salivary glands making it difficult for your body to produce saliva. and tears
CEPF is no longer active in this region. Spanning most of Central America, the Mesoamerica biodiversity hotspot encompasses all subtropical and tropical ecosystems from central Mexico to the Panama Canal. This includes all of Guatemala, Belize, El Salvador, Honduras, Nicaragua and Costa Rica, as well as a third of Mexico and nearly two-thirds of Panama. The hotspot harbors the highest montane forests of Central America, with the most extensive and best-protected cloud forests.
One of the important aspects of Mesoamerican civilizations was their development of a form of writing, so that Mexico's written history stretches back hundreds of years before the arrival of the Spaniards in 1519.This era before the arrival of Europeans is called variously the prehispanic era or the precolumbian era.he Olmec first appeared along the Atlantic coast (in what is now the state of Tabasco) in the period 1500-900 BC. The Olmecs were the first Mesoamerican culture to produce an identifiable artistic and cultural style, and may also have been the society that invented writing in Mesoamerica.