33,34 Of the Smads, Smad2 and Smad3 have been shown to be the major downstream regulators involved in TGF-1-mediated tissue fibrosis

NAD+ vs NMN vs NR (and IV vs SubQ) NAD+ Delivery Comparison Feature Mechanism NAD+ Injection (SubQ) Direct coenzyme delivery NAD+ Infusion (IV) Direct coenzyme delivery Oral NMN NAD+ precursor (converted in vivo) Oral NR (Niagen) NAD+ precursor (converted in vivo) Feature Typical research-planning dose NAD+ Injection (SubQ) 50-100 mg, 2-3x/week NAD+ Infusion (IV) 250-1,000 mg per session Oral NMN 300-600 mg/day Oral NR (Niagen) 300-1,000 mg/day Feature Speed to systemic NAD+ rise NAD+ Injection (SubQ) Hours NAD+ Infusion (IV) Minutes to hours Oral NMN Days to weeks Oral NR (Niagen) Days to weeks Feature Strongest human evidence NAD+ Injection (SubQ) Limited NAD+ Infusion (IV) Pilot PK and historical case reports Oral NMN Growing RCT base Oral NR (Niagen) Strongest RCT base Feature Convenience NAD+ Injection (SubQ) At-home injection technique required NAD+ Infusion (IV) Clinic visit, 2-4 hour infusion Oral NMN Daily oral capsule Oral NR (Niagen) Daily oral capsule Feature Regulatory status NAD+ Injection (SubQ) Not FDA-approved

A less potent and less studied alternative for researchers looking into telomerase activation is TA-65
Same number of units, completely different dose
Liposomes: Liposomes have high biocompatibility and degradability, and their surfaces can be chemically modified to enhance targeting
Although the major therapies are still medicine, radioactive iodine, and surgery (Gittoes and Franklyn 1998), some plants and herbs are essential for controlling thyroid function and reducing symptoms including anxiety, weight loss, and fast heartbeat (Khanum and Razack 2010)