What is a 'Defined-Benefit Plan'. A defined-benefit plan is a retirement plan that an employer sponsors, where employee benefits are computed using a formula that considers factors, such as length of employment and salary history. The company administers portfolio management and investment risk for the plan.
The distinction between neuropeptide and peptide hormone has to do with the cell types that release and respond to the molecule; neuropeptides are secreted from neuronal cells (primarily neurons but also glia for some peptides) and signal to neighboring cells (primarily neurons).oth neuropeptides and peptide hormones are synthesized by the same sets of enzymes, which include prohormone convertases and carboxypeptidases that selectively cleave the peptide precursor at specific processing sites to generate the bioactive peptides.
Thyroid gland is an endocrine gland which secretes two types of hormones, T3 and T4. These hormones are concerned with the regulation of metabolism in human body. The under activity of these hormones results in hypothyroidism while hyperthyroidism, is an outcome of over-activity of T3 and T4 hormones.The levels of T3 and T4 in the body are determined by another hormone called Thyroid Stimulating Hormone (TSH).This hormone is secreted by the pituitary gland.he under activity of these hormones results in hypothyroidism while hyperthyroidism, is an outcome of over-activity of T3 and T4 hormones. The levels of T3 and T4 in the body are determined by another hormone called Thyroid Stimulating Hormone (TSH). This hormone is secreted by the pituitary gland.