Сравнение
Melanotan II vs. Teriparatid
Два пептида рядом — идентичность, доказательная база, правовой статус и известные нежелательные явления.
Идентичность
Категория
Исследования (прочее)
Исследования (прочее)
Номер CAS
121062-08-6
52232-67-4
Молекулярная масса
1024.18 g/mol
4117.8 g/mol
Период полувыведения
1 h
1 h
Последовательность
Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2Ser-Val-Ser-Glu-Ile-Gln-Leu-Met-His-Asn-Leu-Gly-Lys-His-Leu-Asn-Ser-Met-Glu-Arg-Val-Glu-Trp-Leu-Arg-Lys-Lys-Leu-Gln-Asp-Val-His-Asn-PheМеханизм действия
Melanotan II
Melanotan II binds non-selectively to all five melanocortin-receptor subtypes (MC1R-MC5R). Via MC1R in melanocytes, eumelanin synthesis is stimulated (pigmenting effect). Via MC4R and MC3R in the CNS, appetite, sexual function and blood pressure are modulated. The cyclic structure and D-amino acids increase stability compared to natural α-MSH.
Teriparatid
Teriparatide corresponds to the biologically active first 34 amino acids of human parathyroid hormone and binds the PTH-1 receptor on bone and kidney cells. The literature describes that intermittent receptor activation preferentially stimulates the activity of bone-forming osteoblasts, whereas continuously elevated PTH exposure (as in hyperparathyroidism) tends to favor bone resorption. This time-dependent difference is regarded as the mechanistic basis for the bone-anabolic effect observed in studies.
Доказательная база
Наивысшая доказательность
Исследование на людях
РКИ на людях
Исследования
9
4
из них на людях
5
4
Зафиксированные эффекты
4
3
Открытые противоречия
1
1
Задокументированные нежелательные явления
6
2
Правовой статус
Полные записи
Frequently asked questions
- What is the difference between Melanotan II and Teriparatid?
- Melanotan II is classified as "Исследования (прочее)", while Teriparatid is classified as "Исследования (прочее)". Melanotan II: Cyclic hepta-peptide and non-selective melanocortin-receptor agonist. Originally researched at the University of Arizona as a sun-protection concept — never approved as a medicine. Widespread on the black market; regulatory warnings for cardiovascular and oncological risks. Teriparatid: Teriparatide is the recombinant N-terminal fragment 1-34 of human parathyroid hormone (PTH). It is regulatory-approved and studied in the scientific literature as a bone-anabolic agent for the treatment of osteoporosis. Unlike antiresorptive agents, studies attribute to it an effect that stimulates new bone formation. This page contrasts both neutrally and source-based — with no usage or dosing recommendation.
- Which peptide is better supported by science, Melanotan II or Teriparatid?
- The highest available evidence level is "Исследование на людях" for Melanotan II and "РКИ на людях" for Teriparatid. A higher evidence level means more robust data, but says nothing about suitability for an individual. The full body of evidence is on each peptide's own page.
- What is the legal status of Melanotan II and Teriparatid in Germany and the United States?
- Германия: Melanotan II — Не одобрено, Teriparatid — Рецептурный. США: Melanotan II — Не одобрено, Teriparatid — Рецептурный. These are factual summaries with source and review date on the individual pages.