References: Titanium dioxide is the subject of new controversy, yet it is a substance as old as the earth itself. It is one of the top fifty chemicals produced worldwide. It is a white, opaque and naturally-occurring mineral found in two main forms: rutile and anatase.
Megestrol acetate (Megace Â®). Megestrol acetate is a hormonal therapy drug | most commonly used to treat breast cancer that has spread | . It is also sometimes used to treat womb or prostate cancer. Megestrol can also be used to improve symptoms such as hot flushes or loss of appetite.egestrol acetate (Megace Â®). Megestrol acetate is a hormonal therapy drug | most commonly used to treat breast cancer that has spread | . It is also sometimes used to treat womb or prostate cancer. Megestrol can also be used to improve symptoms such as hot flushes or loss of appetite.
Torpedo california AChE complex with acetylcholine (PDB code 2ace). Acetylcholinesterase (AChE) is key enzyme in the nervous system of animals. By rapid hydrolysis of the neurotransmitter, acetylcholine (ACh), AChE terminates neurotransmission at cholinergic synapses.It is a very fast enzyme, especially for a serine hydrolase, functioning at a rate approaching that of a diffusion-controlled reaction.Ch hydrolysis by AChE causes termination of cholinergic neurotransmission. Therefore, compounds which inhibit AChE might significantly increase the levels of ACh depleted in AD. Indeed, it was shown that AChE inhibitors improve the cognitive abilities of AD patients at early stages of the disease development.