Calcitonin is a peptide hormone that lowers blood calcium level and inhibits bone resorption. It belongs to the calcitonin family of peptides, which also includes amylin , calcitonin gene-related peptide , and adrenomedullin. The binding of salmon calcitonin to the human calcitonin receptor (CTR) is not modulated by receptor activity-modifying proteins (RAMPs), which influence affinity of human calcitonin to CTR. Salmon calcitonin binds to human CTR2 with IC50 values of 0.933, 0.224, 0.134, and 0.317 nM alone and with RAMP1, 2, or 3, respectively. It induces cAMP accumulation in COS-7 cells transfected with CTR2 (EC50 = 0.166 nM). Salmon calcitonin inhibits bone resorption by osteoclasts in a pit formation assay using rat bone slices (ID50 = 0.003 pg mL) and lowers calcium level in vivo in a bioassay of hypocalcemia in rats (ED15 = 33.9 mg kg). Formulations containing salmon calcitonin have been used to treat hypercalcemia, bone destruction by osteoporosis, and Paget's disease.
Luteinizing Hormone Releasing Hormone (LH-RH), synthesized in the hypothalamus, is a pituitary hormone that plays a crucial role in controlling reproductive function.
Calcitonin (8-32), salmon, is a highly selective amylin receptor antagonist. Calcitonin, a hormone involved in calcium and phosphorus metabolism, is primarily produced by the parafollicular or C cells in the thyroid gland of mammals.
Melanin Concentrating Hormone (MCH), a 19 amino acid cyclic peptide, is largely expressed in the hypothalamus. Melanin Concentrating Hormone is implicated in the control of general arousal and goal-orientated behaviours in mammals, and appears to be a key
Lipopolysaccharides, from Salmonella typhosa是来自伤寒沙门氏菌(Salmonella typhosa)的脂多糖内毒素及TLR-4激活剂,属于S型LPS,可以通过激活免疫系统的致病相关分子模式(PAMP)诱导细胞分泌迁移体。该化合物有典型的三部分结构:O抗原、核心寡糖和脂质A。它被用作疫苗佐剂,并在体内免疫反应中展示针对B细胞的佐剂活性。
Prostaglandin F1α (PGF1α) is the putative metabolite of dihomo-γ-linolenic acid (DGLA) via the cyclooxygenase (COX) pathway. Both PGF1α and PGF2α have been shown to act as priming pheromones for male Atlantic salmon with a threshold concentration of 10-11 M. [1] PGF1α binds to the ovine corpus luteum FP receptor at only 8% of the relative potency of PGF2α. [2] It is only half as active as PGF2α in inducing human respiratory smooth muscle contractions in vitro. [3]