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.
Cells in the hypothalamus synthesize at least nine different hormones. The neurons of the gland secrete hormones called neurohormones (= releasing factors) which are given below: 1) Adenocorticotropic Releasing Hormone (ARH) or Corticotropin Releasing Hormone.2) Thyrotropin Releasing Hormone (TRH).RH is produced by the hypothalamus in medial neurons of the  paraventricular  nucleus.[3]  At the beginning, it is synthesized as a 242-amino acid precursor  polypeptide â¦ that contains 6 copies of the sequence  -Gln-His-Pro-Gly-, flanked by Lys-Arg or Arg-Arg sequences.