Scientists claim they have reversed aging in rats by injecting them with saline-injected and given injections of young blood plasma, found to live longer than placebo-treated ones and also having more muscle mass and stronger hearts.
These findings indicate that deficits in inhibitory control may emerge with age; however, these do not translate to changes in optimal decision-making during performance of the diminishing returns task. No significant main effects or interactions were detected during reverse sessions between session type and treatment.
Reverses aging
Researchers are making strides toward devising approaches that will enable them to reverse aging and delay age-related diseases. Methods such as caloric restriction and activation of sirtuins have already shown promise in extending lifespan and improving metabolic health based on scientifically established principles, with trials of both on different organisms (including mice).
Reverse aging research seeks to understand how cells age with time. The process begins when cells accumulate cellular senescence, leading to tissue degradation and diminished performance. By identifying and eliminating senescent cells, scientists can rejuvenate their bodies while decreasing disease risks.
Furthermore, it is also crucial that we develop methods to extend healthy lifespans. While various lifestyle interventions have been shown to slow aging in animals such as calorie restriction and vitamin D3 supplementation, there can be no guarantee that such methods will work on humans.
Although anti-aging research presents many challenges, many remain optimistic about its future. It is essential to distinguish the reality from any myths or misconceptions surrounding this field of science; some may assume reversing aging would cause premature death; this is not true since certain species such as certain birds and naked mole rats live long lives without experiencing this problem due to having smaller cell volumes that don’t get cancer as easily than smaller species.
Reduces inflammation
Naked mole rats may not look particularly appealing, but their long lifespans and unusual resistance to disease has fascinated scientists for decades. Now researchers at Rochester have discovered one of their biological advantages could be applied to other mammals as part of an anti-ageing therapy therapy research strategy – high molecular weight hyaluronic acid or HMW-HA levels may hold the key!
The team genetically engineered mice to carry the naked mole rat gene for hyaluronan synthase 2, a protein responsible for producing HMW-HA protective molecules and less susceptible to DNA damage than conventional mice. As a result, they exhibited improved protection from spontaneous tumors as well as chemically-induced skin cancer.
Reducing HMW-HA levels associated with aging may help combat chronic inflammation, which is linked to many age-related illnesses including diabetes, heart disease and Alzheimer’s dementia. According to a study published in Aging and Disease’s January 2026 edition, this may be achieved by reversing natural decline of enzyme thymosin which removes pro-inflammatory substances from immune cells.
Reversing TTP, which causes immune cells to lose their sensitivity for self-repair and contributes to chronic inflammation, could also be one strategy for combatting aging. A recent study published in Aging’s January 2026 edition demonstrated this potential solution: using synthetic compounds that mimic natural activators compounds similar to what activated natural TTP can restore TTP levels.
Harold Katcher, former biology professor at the University of Maryland and now chief scientific officer of Yuvan Research, has developed an epigenetic transfer method that uses young plasma from young animals to rejuvenate organs and tissues of older animals. His groundbreaking work marks the first instance of cross-species epigenetic transfer ever attempted and was shown to reverse aging by over 50% among treated rats using tools known as epigenetic clocks that measure DNA methylation levels to calculate biological age; his average reversal was 76% which would equate to an 80 year-old human returning to biological age 26 if treated similarly aged.
Reduces anxiety
Rats are nocturnal animals, meaning they’re active during the night and at dusk and dawn. Rats sleep during the day, cycling through various stages from slow-wave to REM sleep. Their highly developed senses of smell, touch, hearing and communication allow them to navigate their environment effectively while communicating among themselves and with one another – plus their tail acts as an antibalance so they can move around swiftly without losing balance!
Rats can be quite curious creatures with amazing memories; they remember places, routes, and people in their environment with astounding accuracy! Their sensitive ears make an invaluable contribution, hearing things we humans cannot. When their eyes bulge out it may indicate joy; if this continues it could indicate stress or illness.
The OF test measures anxiety in mice by tracking how often they spend in the center of their field relative to its periphery; decreased time in the center is indicative of increasing anxiety. Another test that measures anxiety is called LD-Box; this measures how long mice spend in darkness.
Results from this study demonstrated that CAW can reverse age-related changes in cognition and measures of anxiety in aged mice. Its mode of administration was also important; previous research had demonstrated various extracts of C. asiatica extract to have anxiolytic effects when given to young mice via drinking water (Wijeweera et al. 2006; Chanana and Kumar 2016). Results of this study demonstrated CAW reduced deficits in OF and elevated plus maze tests while failing to significantly change anxiety measures using either OF-Box or OF tests in aged mice when compared to young mice using these tests (Wijeweera et al. 2006; Chanana and Kumar 2016). This research indicates CAW can reverse age-related changes while being given differently depending on mode of administration used.
Increases muscle mass
Scientists have made significant strides towards reversing biological aging. A research paper published by GeroScience shows how extracellular nanoparticles made from young pig plasma therapy can rejuvenate brain and muscle function of elderly rats. This groundbreaking research marks the first case of cross-species epigenetic transfer.
Scientists discovered that injecting pig plasma into aged rats caused their bodies to age at an estimated 50% slower rate compared to untreated animals, which was confirmed using various clocks (one measuring DNA methylation). Their findings suggest similar treatments could revert 80-year-old humans back to biological age of 26.
Blau’s team discovered that PGE2 plays an essential role in activating muscle stem cells to repair injury, and as mice age, 15-PGDH breaks it down further, leading to weakening and less efficient contracting by muscle stem cells. When experimental mice were administered modified PGE2 that cannot be broken down by 15-PGDH as they exercised on downhill treadmills, however, they experienced stronger muscles than untreated counterparts.
These results echo earlier studies which found that young blood plasma infusions could help turn back biological clocks in various tissues, including livers, hearts, and the hypothalamus in rats. A female Sprague Dawley named Sima who received such plasma injections lived an incredible 47 months – breaking her previous record by nearly six months!
Improves memory
Virginia Tech researchers have conducted two complementary studies that demonstrate how memory loss isn’t just an inevitable part of growing older, but is linked to specific molecular processes and that altering them can significantly boost memory. Jarome and his team at Virginia Tech studied K63 polyubiquitination – an act similar to molecular tagging systems – which acts like molecular tags to signal proteins what actions to take – in both the hippocampus and amygdala where levels of K63 polyubiquitination declined with age; by decreasing this tagging, they managed to increase memory in older rats by improving memory boosting.
Another study, published in Brain Research Bulletin, examined IGF2, an important growth factor associated with memory formation. Researchers discovered that it became chemically silenced through DNA methylation with age; gene editing tools were then used to remove these tags, improving memory in older rats.