Confronto
Semax vs. Teriparatid
Due peptidi a confronto — identità, base di evidenze, stato legale ed eventi avversi noti.
Identità
Categoria
Ricerca (altro)
Ricerca (altro)
N. CAS
80714-61-0
52232-67-4
Peso molecolare
813.92 g/mol
4117.8 g/mol
Emivita
0.3 h
1 h
Sequenza
Met-Glu-His-Phe-Pro-Gly-ProSer-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-PheMeccanismo d'azione
Semax
Semax is a tetracosactide fragment analog without hormonal activity at MC2R. Proposed mechanisms include elevation of BDNF and NGF in hippocampus and striatum (in animal models), modulation of dopamine metabolism, and neuroprotective effects via anti-apoptotic pathways. A clear primary receptor is not established.
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.
Base di evidenze
Evidenza più alta
Studio sull'uomo
RCT sull'uomo
Studi
4
4
di cui sull'uomo
2
4
Effetti registrati
3
3
Contraddizioni aperte
1
1
Eventi avversi documentati
1
2
Stato legale
Voci complete
Frequently asked questions
- What is the difference between Semax and Teriparatid?
- Semax is classified as "Ricerca (altro)", while Teriparatid is classified as "Ricerca (altro)". Semax: Synthetic heptapeptide derived from the N-terminal fragment of adrenocorticotropic hormone (ACTH 4-10). Approved in Russia for ischaemic stroke, cognitive function and ADHD in children. Western phase-3 trials absent. 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, Semax or Teriparatid?
- The highest available evidence level is "Studio sull'uomo" for Semax and "RCT sull'uomo" 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 Semax and Teriparatid in Germany and the United States?
- Germania: Semax — Non approvato, Teriparatid — Su prescrizione. Stati Uniti: Semax — Non approvato, Teriparatid — Su prescrizione. These are factual summaries with source and review date on the individual pages.