You will be shown an abstract from a biomedical research paper. Given this abstract, your task is to extract all unique entities of the following types: ["Protein", "Chemical"].

Please return the output as a JSON object of the format: {"Chemical" : ["Dexamethasone", ...], "Protein" : ["BRCA-1", ...]}. The keys should be entity types and values should be lists of extracted entities belonging to the corresponding type. If you cannot find entities belonging to a specific type, the value should be [].

Only output the JSON object and do not include any additional text.

Abstract:

Selective activation of thyroid hormone signaling pathways by GC-1: a new approach to controlling cholesterol and body weight.
The current report describes progress in development of a selective thyroid hormone receptor modulator, GC-1. This compound binds selectively to the beta-isoform of the thyroid hormone receptor, and its uptake into the heart is relatively low. Studies in rats, mice and monkeys show that GC-1 lowers cholesterol with 600- to 1400-fold more potency and approximately two- to threefold more efficacy than atorvastatin, a compound that blocks HMG-CoA reductase. GC-1 also decreases plasma levels of triglyceride and lipoprotein (a), and induces loss of fat. These effects can be observed under conditions where there is either no or minimal effect on heart rate, and no detectable loss of muscle. Although more study is required, compounds of this class deserve further investigation for treating lipid disorders and obesity.
{"Chemical": ["atorvastatin", "thyroid hormone", "triglyceride", "cholesterol", "HMG-CoA"], "Protein": ["HMG-CoA reductase", "thyroid hormone receptor", "beta-isoform of the thyroid hormone receptor", "lipoprotein (a)"]}