Can Bones Also "Reverse Aging"? The NMN + Apigenin Combo is in the Spotlight!
With the global population aging, degenerative changes in the musculoskeletal system (such as osteoarthritis, osteoporosis, and sarcopenia) severely impact the quality of life of the elderly. Wobbly legs when walking, difficulty climbing stairs, clicking joints, trouble bending and standing up...These are never simply "signs of getting older," but rather “core signals of cellular aging + NAD+ metabolic collapse”.Recently, a research team from The First Affiliated Hospital of Soochow University, among others, published a groundbreaking anti-aging study in the top international journal <Aging Cell>. Based on the principle of "increasing revenue, reducing expenditure," they pioneered a combination therapy of NMN + Apigenin** (referred to as the "N+A Regimen"). In animal experiments, this regimen successfully reversed aging of the musculoskeletal system. This "two-pronged" strategy not only “effectively stabilizes the body's NAD+ reserves” but also delays aging at the cellular level and restores the regenerative capacity of muscles and bones.
PART 01
Aging of the Musculoskeletal System is Closely Linked to NAD+ Metabolic Imbalance
In an aging body, cartilage, bone, and muscle—which should work in harmony—often decline simultaneously: joint cartilage wears down, bone density rapidly decreases, and muscles atrophy year by year. These are commonly known as osteoarthritis, osteoporosis, and sarcopenia. The core root of all this lies within a key molecule: NAD+ (Nicotinamide Adenine Dinucleotide).NAD+ is the cell's "energy core + anti-aging master switch," responsible for cellular energy production, DNA repair, and suppressing aging phenotypes. However, with increasing age, NAD+ levels face two major crises:-Synthesis Decreases: The body's ability to produce NAD+ significantly declines, leading to "severe shortage" in production.-Consumption Surges: Overactive NAD+ consuming enzymes rapidly break down NAD+.Using single-cell sequencing, the study confirmed: NAD+ levels are drastically reduced in aged bone, cartilage, and muscle tissues, and genes related to NAD+ metabolism are broadly downregulated. This directly leads to cellular energy deficiency, senescence and inactivation of skeletal precursor cells, ultimately causing widespread degenerative diseases in the musculoskeletal system.
△ Figure 2: The aged musculoskeletal system is closely associated with impaired NAD metabolism and decreased NAD levels
Simply put: NAD+ depletion → cells become senescent and inactive → musculoskeletal system collapses.**Simply supplementing calcium, glucosamine, or exercising muscles without addressing the root cause of NAD+ imbalance will always fall short.
PART 02
The "N+A" Regimen: Increasing Production and Reducing Consumption to Efficiently Maintain the NAD+ Pool
Given that NAD+ decline has two main causes—insufficient synthesis and excessive consumption—the smartest strategy is to tackle both issues simultaneously. The researchers proposed a combination regimen called "N+A":- N (NMN): Increasing Production — Powering NAD+ Synthesis - NMN is a direct precursor to NAD+. Once in the body, it rapidly converts to NAD+, acting like "fast charging" the cellular NAD+ pool to solve the "insufficient synthesis" problem.- A (Apigenin): Reducing Consumption — Preventing NAD+ Waste - Apigenin is a natural inhibitor of the NAD+ consuming enzyme CD38. It precisely inhibits overactive consuming enzymes, reduces the unnecessary breakdown of NAD+, and solves the "excessive consumption" problem.
△ Figure 3: N+A promotes musculoskeletal regeneration during aging
The combination is remarkably synergistic:- Only NMN = Charging without saving, NAD+ is still easily lost;- N+A Dual synergy = Fast-charging production while preserving reserves, maximizing the NAD+ pool!Both cellular and animal experiments confirmed that the N+A regimen's effect on raising NAD+ levels and optimizing the NAD+/NADH ratio is far superior to using NMN or Apigenin alone, making it the optimal solution for maintaining the NAD+ pool.
PART 03
Promoting TrilineaGe Differentiation and Rebuilding Musculoskeletal Homeostasis
So, what are the actual effects of raising NAD+ levels? Researchers were pleasantly surprised in cell experiments to find that the N+A regimen significantly promotes the differentiation of three key types of precursor cells:- Chondrogenic precursors → Differentiate into healthy chondrocytes, secreting collagen and proteoglycans to repair worn joint "shock absorbers."- Osteogenic precursors → Differentiate into mature osteoblasts, promoting calcium nodule deposition, increasing bone density, and making bones stronger.- Myogenic precursors → Differentiate into myofibers, forming thicker myotubes, reversing muscle atrophy, and restoring strength.The study yielded results in aged mice:After oral administration of the N+A regimen, mice showed reduced cartilage degradation, significantly restored bone mass, and markedly improved muscle atrophy. Their motor ability, grip strength, movement distance, and speed were all comprehensively enhanced, completely overcoming the mobility limitations associated with aging.
△ Figure 4: Oral N+A prevents cartilage damage, bone loss, and muscle atrophy in 20-month-old aged mice
In a nutshell: N+A doesn't just fight aging; it directly rebuilds the musculoskeletal system, making the body "steadier on its frame, stronger in its muscles, and more agile in its joints."
PART 04
SIRT3-Dependent Mechanism and the Indirect Contribution of the Gut Metabolite PHS
Why does the N+A regimen achieve such comprehensive anti-aging effects? The research thoroughly uncovered two core pathways, providing a complete scientific rationale:-Core Pathway: SIRT3 — The Direct Executor of NAD+ Anti-Aging - After N+A stabilizes NAD+ levels, it directly activates mitochondrial deacetylase 3 (SIRT3): SIRT3 uses NAD+ as fuel to promote cellular deacetylation modifications, suppressing aging phenotypes at their source, repairing mitochondrial function, and inhibiting cellular senescence.
△ Figure 5: The N+A formula alleviates musculoskeletal aging through a mitochondrial SIRT3-dependent mechanism
Through gene knockout experiments, the study verified that without SIRT3, the anti-aging and restorative effects of N+A are significantly weakened, confirming SIRT3 is the key mediator of NAD+ protection in musculoskeletal health.- Indirect Pathway: Gut Microbiota → PHS — The Hidden Ally for Systemic Anti-Aging - An additional from oral N+A is its ability to regulate the gut microbiota, significantly increasing the abundance of two beneficial bacteria genera: Coriobacteriaceae_UCG-002 and Ruminococcus. These beneficial bacteria accelerate the synthesis of Phytosphingosine (PHS). This metabolite further alleviates age-related degenerative changes, synergizing with N+A to achieve systemic anti-aging through the "gut-bone/muscle axis."
△ Figure 6: The N+A formula delays tissue aging and promotes regenerative capacity by modulating the gut microbiota
This ultimately forms a complete chain: "NAD+ elevation → SIRT3 activation + Gut microbiota optimization → Dual anti-aging effects → Musculoskeletal regeneration."
PART 05
Conclusion: Science Applied, Choosing High-Quality NMN Matters
This top-tier journal study clearly tells us: Boosting NAD+ reserves is the core strategy for promoting musculoskeletal regeneration and combating age-related degenerative diseases, and the N+A regimen (NMN + Apigenin) holds high potential for clinical translation.To implement these scientific findings, high-quality NMN is an essential core ingredient. As a research-grade originator in the NMN field, Bontac has NAD+ related raw material R&D for years. Using its globally pioneering whole-enzyme technology, it produces NMN with high purity, high activity, and high safety, aligning with the research standards of top global scientific teams, transforming top-journal anti-aging achievements into daily accessible health protection.Anti-aging is never about blindly following trends, but about following top-tier research, choosing the right ingredients, and using scientific combinations. Preserving NAD+ and stabilizing muscles and bones is the way to age slower, healthier, and with better quality of life.
References：
Yu, J., M.Hou, Y.Deng, et al. 2026. “Double-Pronged NAD Preservation: Delaying Cellular Senescence and Initiating Musculoskeletal Regeneration.” Aging Cell25, no. 4: e70468. https://doi.org/10.1111/acel.70468.
PART 01
Aging of the Musculoskeletal System is Closely Linked to NAD+ Metabolic Imbalance
In an aging body, cartilage, bone, and muscle—which should work in harmony—often decline simultaneously: joint cartilage wears down, bone density rapidly decreases, and muscles atrophy year by year. These are commonly known as osteoarthritis, osteoporosis, and sarcopenia. The core root of all this lies within a key molecule: NAD+ (Nicotinamide Adenine Dinucleotide).NAD+ is the cell's "energy core + anti-aging master switch," responsible for cellular energy production, DNA repair, and suppressing aging phenotypes. However, with increasing age, NAD+ levels face two major crises:-Synthesis Decreases: The body's ability to produce NAD+ significantly declines, leading to "severe shortage" in production.-Consumption Surges: Overactive NAD+ consuming enzymes rapidly break down NAD+.Using single-cell sequencing, the study confirmed: NAD+ levels are drastically reduced in aged bone, cartilage, and muscle tissues, and genes related to NAD+ metabolism are broadly downregulated. This directly leads to cellular energy deficiency, senescence and inactivation of skeletal precursor cells, ultimately causing widespread degenerative diseases in the musculoskeletal system.
△ Figure 2: The aged musculoskeletal system is closely associated with impaired NAD metabolism and decreased NAD levels
Simply put: NAD+ depletion → cells become senescent and inactive → musculoskeletal system collapses.**Simply supplementing calcium, glucosamine, or exercising muscles without addressing the root cause of NAD+ imbalance will always fall short.
PART 02
The "N+A" Regimen: Increasing Production and Reducing Consumption to Efficiently Maintain the NAD+ Pool
Given that NAD+ decline has two main causes—insufficient synthesis and excessive consumption—the smartest strategy is to tackle both issues simultaneously. The researchers proposed a combination regimen called "N+A":- N (NMN): Increasing Production — Powering NAD+ Synthesis - NMN is a direct precursor to NAD+. Once in the body, it rapidly converts to NAD+, acting like "fast charging" the cellular NAD+ pool to solve the "insufficient synthesis" problem.- A (Apigenin): Reducing Consumption — Preventing NAD+ Waste - Apigenin is a natural inhibitor of the NAD+ consuming enzyme CD38. It precisely inhibits overactive consuming enzymes, reduces the unnecessary breakdown of NAD+, and solves the "excessive consumption" problem.
△ Figure 3: N+A promotes musculoskeletal regeneration during aging
The combination is remarkably synergistic:- Only NMN = Charging without saving, NAD+ is still easily lost;- N+A Dual synergy = Fast-charging production while preserving reserves, maximizing the NAD+ pool!Both cellular and animal experiments confirmed that the N+A regimen's effect on raising NAD+ levels and optimizing the NAD+/NADH ratio is far superior to using NMN or Apigenin alone, making it the optimal solution for maintaining the NAD+ pool.
PART 03
Promoting TrilineaGe Differentiation and Rebuilding Musculoskeletal Homeostasis
So, what are the actual effects of raising NAD+ levels? Researchers were pleasantly surprised in cell experiments to find that the N+A regimen significantly promotes the differentiation of three key types of precursor cells:- Chondrogenic precursors → Differentiate into healthy chondrocytes, secreting collagen and proteoglycans to repair worn joint "shock absorbers."- Osteogenic precursors → Differentiate into mature osteoblasts, promoting calcium nodule deposition, increasing bone density, and making bones stronger.- Myogenic precursors → Differentiate into myofibers, forming thicker myotubes, reversing muscle atrophy, and restoring strength.The study yielded results in aged mice:After oral administration of the N+A regimen, mice showed reduced cartilage degradation, significantly restored bone mass, and markedly improved muscle atrophy. Their motor ability, grip strength, movement distance, and speed were all comprehensively enhanced, completely overcoming the mobility limitations associated with aging.
△ Figure 4: Oral N+A prevents cartilage damage, bone loss, and muscle atrophy in 20-month-old aged mice
In a nutshell: N+A doesn't just fight aging; it directly rebuilds the musculoskeletal system, making the body "steadier on its frame, stronger in its muscles, and more agile in its joints."
PART 04
SIRT3-Dependent Mechanism and the Indirect Contribution of the Gut Metabolite PHS
Why does the N+A regimen achieve such comprehensive anti-aging effects? The research thoroughly uncovered two core pathways, providing a complete scientific rationale:-Core Pathway: SIRT3 — The Direct Executor of NAD+ Anti-Aging - After N+A stabilizes NAD+ levels, it directly activates mitochondrial deacetylase 3 (SIRT3): SIRT3 uses NAD+ as fuel to promote cellular deacetylation modifications, suppressing aging phenotypes at their source, repairing mitochondrial function, and inhibiting cellular senescence.
△ Figure 5: The N+A formula alleviates musculoskeletal aging through a mitochondrial SIRT3-dependent mechanism
Through gene knockout experiments, the study verified that without SIRT3, the anti-aging and restorative effects of N+A are significantly weakened, confirming SIRT3 is the key mediator of NAD+ protection in musculoskeletal health.- Indirect Pathway: Gut Microbiota → PHS — The Hidden Ally for Systemic Anti-Aging - An additional from oral N+A is its ability to regulate the gut microbiota, significantly increasing the abundance of two beneficial bacteria genera: Coriobacteriaceae_UCG-002 and Ruminococcus. These beneficial bacteria accelerate the synthesis of Phytosphingosine (PHS). This metabolite further alleviates age-related degenerative changes, synergizing with N+A to achieve systemic anti-aging through the "gut-bone/muscle axis."
△ Figure 6: The N+A formula delays tissue aging and promotes regenerative capacity by modulating the gut microbiota
This ultimately forms a complete chain: "NAD+ elevation → SIRT3 activation + Gut microbiota optimization → Dual anti-aging effects → Musculoskeletal regeneration."
PART 05
Conclusion: Science Applied, Choosing High-Quality NMN Matters
This top-tier journal study clearly tells us: Boosting NAD+ reserves is the core strategy for promoting musculoskeletal regeneration and combating age-related degenerative diseases, and the N+A regimen (NMN + Apigenin) holds high potential for clinical translation.To implement these scientific findings, high-quality NMN is an essential core ingredient. As a research-grade originator in the NMN field, Bontac has NAD+ related raw material R&D for years. Using its globally pioneering whole-enzyme technology, it produces NMN with high purity, high activity, and high safety, aligning with the research standards of top global scientific teams, transforming top-journal anti-aging achievements into daily accessible health protection.Anti-aging is never about blindly following trends, but about following top-tier research, choosing the right ingredients, and using scientific combinations. Preserving NAD+ and stabilizing muscles and bones is the way to age slower, healthier, and with better quality of life.
References：
Yu, J., M.Hou, Y.Deng, et al. 2026. “Double-Pronged NAD Preservation: Delaying Cellular Senescence and Initiating Musculoskeletal Regeneration.” Aging Cell25, no. 4: e70468. https://doi.org/10.1111/acel.70468.
