Calcitonin is 32-amino acid linear polypeptide hormone that is produced in humans primarily by the parafollicular cells of the thyroid, and in many other animals in the ultimopharyngeal body. It acts to reduce blood calcium, opposing the effects of parathyroid hormone.
Improve the bracketed part of the sentence. Higher crude oil prices have doubtlessly provided a significant fiscal boost in the past several months, although any (flair on) going forward can lead to a price spiral that would have other untoward consequences as well.