Below is the chemical reaction for the formation of calcium chloride: Calcium chloride salts can also form crystals based on these same ionic properties. Positive calcium ions can orient themselves so that they are close to the negative chloride ions in another molecule.
Neurofibrillary Tangles (NFTs) are aggregates of hyperphosphorylated tau protein that are most commonly known as a primary marker of Alzheimer's Disease.Their presence is also found in numerous other diseases known as tauopathies.ormation [edit]. Neurofibrillary tangles are formed by hyperphosphorylation of a microtubule-associated protein known as tau, causing it to aggregate, or group, in an insoluble form.
Both amyloid plaques and neurofibrillary tangles are buildups of protein that also occur as part of the normal aging process, but in people with Alzheimerâs-type dementias, the amounts of these proteins that build up are far greater. Amyloid plaques, also know as senile plaques, were the first of these two types of lesions to be described. They consist of small, dense deposits of a particular protein, beta-amyloid. Beta-amyloid molecules are chemically adhesive, so that they gradually stick to one another to form plaques.