Merck, S2626-25G, Spermidine

General description
The enzyme nitric oxide synthase (nNOS) is involved in the production of nitric oxide.
Spermidine, a natural biomolecule, is known for its wide-ranging health benefits, including anti-inflammatory effects, antioxidant properties, and improvements in respiratory function. It carries a positive charge at physiological pH, allowing it to interact with oppositely charged DNA and RNA. Dietary intake of spermidine is associated with a reduced risk of neurodegeneration, metabolic diseases, heart ailments, and cancer. Spermidine-induced autophagy has been shown to slow the rate of cognitive decline by clearing amyloid-beta plaques in the brain. Spermidine supplementation improves mitochondrial metabolism and translational activity. Moreover, spermidine exhibits cell-autonomous effects on cancer cells and influences their communication with immune effectors, leading to the acceleration of tumor-associated antigen identification and cancer cell death. Spermidine-mediated autophagy inhibits the activation of apoptosis in cancer cells and is linked to tissue development and cell differentiation. This natural compound is additionally recognized for its neuroprotective, and anti-aging properties and is naturally found in semen, as well as in various plant sources.
Application
Spermidine has been used:
in the preparation of 5x transcription buffer
in the treatment of double-stranded RNA along with other reagents to increase the uptake of dsRNA by nematodes
as a standard in the analytical study of rat brain polyamines (185)

Biochem/physiol Actions
Inhibits neuronal nitric oxide synthase (nNOS). Binds and precipitates DNA; Stimulates T₄ polynucleotide kinase activity.
Inhibits neuronal nitric oxide synthase (nNOS). Binds and precipitates DNA; may be used for purification of DNA binding proteins. Stimulates T₄ polynucleotide kinase activity.
Other Notes
Store under inert gas. Air sensitive; strongly hygroscopic.
Disclaimer
Solutions should be sterile-filtered, not autoclaved, if sterile solution is necessary. Spermidine deaminates with time; solutions should be stored frozen. Prepare new solutions frequently.