Abstract: Disclosed is a compound of formula (I): wherein R1, R2, R3, and are as defined herein. Also disclosed are methods for increasing mammalian cell NAD+ production and improving mitochondrial cell densities comprising administering to a cell the compound or a salt thereof.

Abstract: The invention relates to compositions of nicotinoyl ribosides and nicotinamide riboside derivatives and their methods of use. In some embodiments, the invention relates to methods of making nicotinoyl ribosides. In some embodiments, the invention relates to pharmaceutical compositions and nutritional supplements containing a nicotinoyl riboside. In further embodiments, the invention relates to methods of using nicotinoyl ribosides and nicotinamide riboside derivatives that promote the increase of intracellular levels of nicotinamide adenine dinucleotide (NAD+) in cells and tissues for improving cell and tissue survival.

Abstract: The invention relates to compositions of nicotinoyl ribosides and nicotinamide riboside derivatives and their methods of use. In some embodiments, the invention relates to methods of snaking nicotinoyl ribosides. In some embodiments, the invention relates to pharmaceutical compositions and nutritional supplements containing a nicotinoyl riboside. In further embodiments, the invention relates to methods of using nicotinoyl ribosides and nicotinamide riboside derivatives that promote the increase of intracellular levels of nicotinamide adenine dinucleotide (NAD+) in cells and tissues for improving cell and tissue survival.

Abstract: Disclosed herein is a method for treating heart failure in a subject in need thereof. The method includes administering a therapeutically effective amount of nicotinamide riboside to the subject. The heart failure may be associated with iron deficiency. The method may also include administering iron to the subject.

Abstract: The invention provides a process for the preparation of nicotinamide mononucleotide having formula (I): The method involves the protection of nicotinamide riboside by ketalization, followed by phosphorylation and then deprotection to provide nicotinamide mononucleotide.

Abstract: Disclosed is a compound of formula (I): wherein R1, R2, R3, and are as defined herein. Also disclosed are methods for increasing mammalian cell NAD+ production and improving mitochondrial cell densities comprising administering to a cell the compound or a salt thereof.

Abstract: The invention provides a method of preventing or treating hearing loss in a mammal in need thereof. The method involves administering to the mammal an agent that increases intracellular NAD+ in the mammal. The invention also provides a method of determining if a compound acts as a neuroprotective agent.

Abstract: Disclosed are halogenated 2-deoxy-lactone, 2?-deoxy-nucleosides, and derivatives thereof, for example, a compound of formula (I). Also disclosed are a composition comprising a pharmaceutically acceptable carrier and at least one compound or salt of the invention, and a method of treating a disorder is selected from the group consisting of an abnormal cellular proliferation, a viral infection, and an autoimmune disorder.

Abstract: The invention provides a method of increasing a deacetylase activity of SIRT5 by contacting SIRT5 with an agent that binds SIRT5 and reduces the Km of SIRT5 for a substrate, thereby increasing the deacetylase activity of SIRT5. The invention also provides a method for treating a urea cycle disorder in a mammal, as well as a method of assaying a sirtuin modulator.

Abstract: The invention relates to compositions of nicotinoyl ribosides and nicotinamide riboside derivatives and their methods of use. In some embodiments, the invention relates to methods of snaking nicotinoyl ribosides. In some embodiments, the invention relates to pharmaceutical compositions and nutritional supplements containing a nicotinoyl riboside. In further embodiments, the invention relates to methods of using nicotinoyl ribosides and nicotinamide riboside derivatives that promote the increase of intracellular levels of nicotinamide adenine dinucleotide (NAD+) in cells and tissues for improving cell and tissue survival.

Abstract: The invention relates to compositions of nicotinoyl ribosides and nicotinamide riboside derivatives and their methods of use. In some embodiments, the invention relates to methods of making nicotinoyl ribosides. In some embodiments, the invention relates to pharmaceutical compositions and nutritional supplements containing a nicotinoyl riboside. In further embodiments, the invention relates to methods of using nicotinoyl ribosides and nicotinamide riboside derivatives that promote the increase of intracellular levels of nicotinamide adenine dinucleotide (NAD+) in cells and tissues for improving cell and tissue survival.

Abstract: The invention provides a method of increasing a deacetylated activity of SIRT6 by contacting SIRT6 with an agent that binds SIRT6 and reduces the Km of SIRT6 for a substrate, thereby increasing the deacetylase activity of SIRT6. The invention also provides compounds of the formulas (II) and (III).

Abstract: The invention provides a method of preparing a sirtuin complex, a method for detecting a sirtuin in a sample, and a method of screening for compounds which inhibit the deacetylase activity of a sirtuin. The method includes (a) providing a sirtuin substrate having the formula: (b) providing NAD+ or an NAD+ analog having the formula: and (c) providing a sirtuin, wherein R1-R4, A1, A2, and n are as defined herein.

Abstract: The invention provides a method of preventing or treating hearing loss in a mammal in need thereof. The method involves administering to the mammal an agent that increases intracellular NAD+ in the mammal. The invention also provides a method of determining if a compound acts as a neuroprotective agent.

Abstract: The invention relates to compositions of nicotinoyl ribosides and nicotinamide riboside derivatives and their methods of use. In some embodiments, the invention relates to methods of making nicotinoyl ribosides. In some embodiments, the invention relates to pharmaceutical compositions and nutritional supplements containing a nicotinoyl riboside. In further embodiments, the invention relates to methods of using nicotinoyl ribosides and nicotinamide riboside derivatives that promote the increase of intracellular levels of nicotinamide adenine dinucleotide (NAD+) in cells and tissues for improving cell and tissue survival.

Abstract: The invention relates to compositions of nicotinoyl ribosides and nicotinamide riboside derivatives and their methods of use. In some embodiments, the invention relates to methods of making nicotinoyl ribosides. In some embodiments, the invention relates to pharmaceutical compositions and nutritional supplements containing a nicotinoyl riboside. In further embodiments, the invention relates to methods of using nicotinoyl ribosides and nicotinamide riboside derivatives that promote the increase of intracellular levels of nicotinamide adenine dinucleotide (NAD+) in cells and tissues for improving cell and tissue survival.

Abstract: Compounds are disclosed which inhibit SIR2 base exchange more than deacetylation, thus enhancing SIR2 deacetylation activity. Methods of using the compounds for enhancing SIR2 deacetylation activity and increasing longevity of an organism are also disclosed. Methods for screening for compounds that enhance SIR2 deacetylation activity and increase longevity of an organism are additionally disclosed.

Abstract: Compounds are disclosed which inhibit SIR2 base exchange more than deacetylation, thus enhancing SIR2 deacetylation activity. Methods of using the compounds for enhancing SIR2 deacetylation activity and increasing longevity of an organism are also disclosed. Methods for screening for compounds that enhance SIR2 deacetylation activity and increase longevity of an organism are additionally disclosed.

Abstract: The invention provides a method of preparing a sirtuin complex. The invention also provides a method of detecting a sirtuin in a sample comprising use of the aforesaid sirtuin complex.

Abstract: Compounds are disclosed which inhibit SIR2 base exchange more than deacetylation, thus enhancing SIR2 deacetylation activity. Methods of using the compounds for enhancing SIR2 deacetylation activity and increasing longevity of an organism are also disclosed. Methods for screening for compounds that enhance SIR2 deacetylation activity and increase longevity of an organism are additionally disclosed.