The results show that NMN is able to activate the SIRT1 gene<\/strong>, a key factor in DNA repair and genome stability. In doing so, NMN goes beyond supporting energy levels: it addresses the core of cellular aging. <\/p>\n\n NMN (Nicotinamide Mononucleotide)<\/strong> is a derivative of niacin (vitamin B3) and acts as a direct precursor of NAD\u207a (Nicotinamide Adenine Dinucleotide)<\/strong>. NAD\u207a is indispensable in cellular processes such as: <\/p>\n\n The problem: As we age, NAD\u207a levels drop sharply, causing cells to function less well and age faster. NMN supplementation replenishes that decline and appears capable of restoring NAD\u207a to healthy levels. <\/p>\n\n The study published in 2025 by researchers at Harvard Medical School<\/strong> examined the role of NMN and DNA repair in aging mice. The focus was on the SIRT1 gene<\/strong>, which is crucial for: <\/p>\n\n The findings were remarkable: after administration of NMN, the activity of SIRT1 increased significantly. This allowed cells to repair DNA damage faster and more effectively, even when that damage was caused by radiation. This makes NMN not only a means of slowing aging, but also a possible candidate for applications in oncology<\/strong> and even space medicine<\/strong>, where radiation exposure is a major risk. <\/p>\n\n DNA is continuously exposed to damage from oxidative stress<\/strong>, UV radiation<\/strong>, environmental toxins<\/strong> and natural errors during cell division. Fortunately, cells possess DNA repair mechanisms<\/strong>, such as base excision repair<\/strong> and double-strand break repair<\/strong>. However, these processes are highly dependent on sufficient NAD\u207a levels<\/strong>. <\/p>\n\n When DNA damage is inadequately repaired, it can lead to:<\/p>\n\n Thus, by improving DNA repair with NMN, we are addressing a fundamental cause of aging<\/strong> rather than just symptoms.<\/p>\n\n Harvard researchers emphasize that the effects of NMN in mice are impressive: significantly better DNA repair even after radiation exposure. This opens up prospects for medicine, oncology and even space travel<\/strong>, where DNA damage from cosmic radiation is a major risk. <\/p>\n\n Still, experts warn that more long-term studies in humans<\/strong> are crucial before NMN can be used as standard therapy.<\/p>\n\n This research is part of a broader trend. Previous studies show that NMN and supports DNA repair by reducing the interaction between PARP1 and DBC1<\/strong>. This makes PARP1 more active and better able to repair damaged DNA. <\/p>\n\n In addition, there is evidence that NMN also protects mitochondrial DNA and supports the action of telomerase<\/strong>, thereby maintaining telomere length<\/strong> longer. Since short telomeres are a strong biomarker of aging, this suggests a broader protective role of NMN on the aging process. <\/p>\n\n Another important insight comes from the so-called NAD World 3.0 hypothesis<\/strong>, introduced in 2023 and further confirmed in 2025. In this, the intestinal transporter protein Slc12a8<\/strong> plays a key role: it efficiently transports NMN from the small intestine to the blood, which explains why oral NMN supplementation can be so effective. <\/p>\n\n Although much research is still taking place in mouse models, the number of clinical studies in humans is also growing. Some key findings from 2025: <\/p>\n\n These results indicate that NMN is not only useful in the laboratory, but can also be clinically relevant in everyday life.<\/p>\n\n Still, caution is required. Many studies are small-scale, short-term or sponsored by supplement companies. This raises questions about independence and long-term effects. <\/p>\n\n Key open questions are:<\/p>\n\n Therefore, large-scale, independent and long-term clinical trials are indispensable to back up the hype surrounding NMN with hard facts.<\/p>\n\n Harvard Medical School’<\/strong> s 2025 research, published via Space Coast Daily<\/em>, conclusively shows that NMN activates<\/strong> the SIRT1 gene<\/strong>, thereby enhancing cells’ ability to repair DNA damage. This confirms that NMN is not just an energy booster, but a serious candidate as an anti-aging therapy<\/strong>. <\/p>\n\n Clinical studies additionally show that NMN is safe in high doses and can have positive effects on insulin sensitivity, muscle strength and energy levels. Still, there is a long way to go before NMN is recognized worldwide as a medically proven therapy. <\/p>\n\n What is clear: 2025 marks an important year in which NMN shifts from a promise to an increasingly robust scientific reality.<\/p>\n\n NMN and DNA repair In January 2025, Space Coast Daily published an article discussing new research from Harvard Medical School. This study sheds bright light on the role of Nicotinamide…<\/p>\n","protected":false},"author":1,"featured_media":9587,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[520,1120,473],"tags":[1121,475,474],"class_list":{"0":"post-9593","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-nmn-en","8":"category-dna-en","9":"category-science","10":"tag-dna-en","11":"tag-nmn-en","12":"tag-science"},"_links":{"self":[{"href":"https:\/\/everydaybetter.nl\/en\/wp-json\/wp\/v2\/posts\/9593","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/everydaybetter.nl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/everydaybetter.nl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/everydaybetter.nl\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/everydaybetter.nl\/en\/wp-json\/wp\/v2\/comments?post=9593"}],"version-history":[{"count":0,"href":"https:\/\/everydaybetter.nl\/en\/wp-json\/wp\/v2\/posts\/9593\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/everydaybetter.nl\/en\/wp-json\/wp\/v2\/media\/9587"}],"wp:attachment":[{"href":"https:\/\/everydaybetter.nl\/en\/wp-json\/wp\/v2\/media?parent=9593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/everydaybetter.nl\/en\/wp-json\/wp\/v2\/categories?post=9593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/everydaybetter.nl\/en\/wp-json\/wp\/v2\/tags?post=9593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\nWhat is NMN and why is it so interesting?<\/h2>\n\n
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\n\nHarvard Medical School: NMN activates SIRT1 and repairs DNA<\/h2>\n\n
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How exactly does NMN and DNA repair work?<\/h2>\n\n
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\n\nWhy is this important?<\/h2>\n\n
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\n\nWhat do researchers say about NMN and DNA repair?<\/h2>\n\n
\n\nNMN and DNA repair mechanisms<\/h2>\n\n
\n\nClinical relevance: what does this mean for people?<\/h2>\n\n
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\n\nCritical comments<\/h2>\n\n
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\n\nConclusion<\/h2>\n\n
\n\nResources<\/h2>\n\n
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![\"NMN](\"https:\/\/everydaybetter.nl\/wp-content\/uploads\/2025\/08\/nmn-en-dna-herstel-1024x682.jpg\" "\\"\\"")