Key result
Prior bypass surgery is linked to pre-transplant serum inhibitory factors, potentially explaining better transplant acceptance.
Why the study?
The presence and nature of serum factors that might inhibit the mixed lymphocyte reaction in heart transplant recipients before immunosuppressive therapy were unclear.
Population
20 random human heart transplant recipients with sera drawn before immunosuppressive medications
Comparison
Patients with previous heart surgery on bypass vs those without surgery
Design
Observational lymphocyte tissue culture study
Authors
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Pre-transplant serum MLR inhibitors in heart recipients may signal early immunomodulation; leaves open prospective links to rejection or tolerance.
Observational (n=20)
Heart transplant recipients frequently possess serum factors that inhibit lymphocyte reactions, which may contribute to better transplant acceptance in patients with prior bypass surgery.
Coulson et al. (1974) conducted an observational in Heart transplant recipients (n=20). Serum inhibitory factors was evaluated on Inhibition of the mixed lymphocyte reaction. The majority of heart transplant recipients possessed serum inhibitory factors prior to immunosuppression, potentially explaining better transplant acceptance in patients with prior bypass surgery.
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