Plasma Dilution
Therapeutic Plasma Exchange & Neutral Blood Exchange
An experimental rejuvenation approach based on the hypothesis that aging is driven partly by accumulated pro-aging factors in blood plasma. Therapeutic plasma exchange (TPE) or neutral blood exchange (NBE) replaces a portion of blood plasma with saline and albumin, diluting these factors. Pioneered by the Conboy lab at UC Berkeley, early animal studies showed remarkable tissue rejuvenation, but human longevity data remains very limited.
How Plasma Dilution Works
Plasma dilution (also called therapeutic plasma exchange or neutral blood exchange) involves removing a portion of the patient's plasma and replacing it with a solution of saline and albumin. Based on landmark 2020 research from UC Berkeley (Irina and Michael Conboy), this process dilutes accumulated pro-ageing factors in the blood — including inflammatory cytokines, autoantibodies, and protein aggregates — while resetting albumin levels. Unlike parabiosis (young blood transfusion), the benefit appears to come from removing harmful old-blood factors rather than adding young-blood factors. Early mouse studies showed rejuvenation of muscle, liver, and brain tissue. NOTE: This remains a highly experimental anti-ageing intervention with very limited human data.
📊 Evidence by Outcome
Neutral blood exchange in aged mice rejuvenated muscle, brain, and liver tissue to levels comparable to young animals. The effect was attributed to dilution of inhibitory plasma factors rather than addition of young blood components.
6 studies • Consistency: High • Effect: Large
Therapeutic plasma exchange is FDA-approved for specific autoimmune conditions but has not been tested in controlled trials specifically for anti-aging. Anecdotal reports from self-experimenters describe improved inflammatory biomarkers, but rigorous human aging data is absent.
3 studies • Consistency: Low • Effect: None
TPE has a well-established safety profile for approved medical conditions (e.g., myasthenia gravis, Guillain-Barre). However, risks include hypotension, allergic reactions, and infection. Safety for repeated elective use in healthy individuals is not established.
9 studies • Consistency: Moderate • Effect: Small
Key Research
Peer-Reviewed Evidence • 3 Citations
Rejuvenation of three germ layers tissues by exchanging old blood plasma with saline-albumin
Mehdipour M, Skinner C, Wong N et al.•Aging•2020•PMID: 32474458
Key Finding: Neutral blood exchange in aged mice rejuvenated muscle repair, reduced liver adiposity and fibrosis, and increased hippocampal neurogenesis, all without young blood, suggesting dilution of pro-aging factors is the key mechanism.
View on PubMedUndulating changes in human plasma proteome profiles across the lifespan
Lehallier B, Gate D, Schaum N et al.•Nat Med•2019•PMID: 31806903
Key Finding: Identified waves of plasma proteome changes at ages ~34, 60, and 78, providing molecular evidence that blood composition shifts meaningfully with age and may drive aging phenotypes.
View on PubMedHeterochronic parabiosis: historical perspective and methodological considerations for studies of aging and longevity
Conboy IM, Conboy MJ, Rebo J•Aging Cell•2013•PMID: 23826660
Key Finding: Foundational review establishing that shared circulation between young and old animals rejuvenates aged tissues, laying the groundwork for plasma exchange as a rejuvenation strategy.
View on PubMedCitations sourced from PubMed, Cochrane Library, and peer-reviewed journals. Study findings are summarized for accessibility. Always consult the original publication for full methodology and results.
Side Effects & Safety
Interactions & Contraindications
Drug Interactions
- •Anticoagulants (procedure involves blood manipulation, compounded bleeding risk)
- •ACE inhibitors (increased hypotension risk during plasma exchange)
- •Protein-bound drugs may be removed during the exchange, reducing their effectiveness
- •Immunoglobulin-based therapies may be diluted
Supplement Interactions
- •Fat-soluble vitamins (A, D, E, K) bound to plasma proteins may be partially removed
- •Hormone supplements may need timing adjustments around procedures
Food & Timing
- •Adequate protein intake recommended before and after to support albumin recovery
- •Good hydration essential before procedure
Who Should Avoid
- •Severe cardiovascular disease or heart failure
- •Active bleeding or coagulopathy
- •Severe anaemia
- •Haemodynamic instability
- •Allergy to human albumin
- •Active systemic infection
📋 Protocol Snapshot
Protocols are for informational purposes only. Always consult a qualified healthcare provider before starting any treatment protocol.
Cost Guide
AED 5,000-15,000/session
Limited UAE availability. Costs may vary for international sourcing.
Frequently Asked Questions
Therapeutic plasma exchange (TPE) is available in UAE hospitals for established medical indications like autoimmune diseases and certain neurological conditions. However, its use specifically for anti-ageing or longevity purposes is not standard practice in UAE clinics. Some international longevity clinics offer the procedure, but it would need to be discussed with a haematologist or longevity specialist.
This is an important distinction. Young blood transfusions (parabiosis-inspired) add young donor blood factors. Plasma dilution instead removes and dilutes old harmful factors in your own blood, replacing them with neutral albumin solution. The UC Berkeley research showed that dilution alone — without any young blood — produced similar or better rejuvenation effects in mice. This suggests the problem is accumulation of harmful factors rather than loss of youthful ones.
The research is too early to define optimal protocols. In the original mouse studies, a single neutral blood exchange showed significant rejuvenation effects. Early human longevity protocols typically involve 1-3 sessions over several weeks, with some clinics suggesting periodic maintenance every 3-6 months. These are experimental protocols without long-term human safety or efficacy data.
Very preliminary. The 2020 mouse study was groundbreaking and well-designed, but human translation is in early stages. Small pilot studies have explored safety and biomarker changes, but large randomised controlled trials for longevity endpoints have not been completed. The procedure is safe when performed in clinical settings (it has decades of safety data for autoimmune indications), but its anti-ageing benefits in humans remain unproven.
Where to Get It (UAE)
Related Treatments
Medical Disclaimer: The information on this page is for educational purposes only and is not intended as medical advice. Kamura Scores reflect a combination of research evidence, community data, and other factors — they are not clinical recommendations. Research citations are provided for reference; always consult the original publications for complete study details. Consult a qualified healthcare provider before starting, stopping, or modifying any treatment. Individual results may vary.