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Serum creatine kinase in the post-polio population.
W P Waring1, G Davidoff, R Werner
1Department of Physical Medicine and Rehabilitation, University of Michigan Medical Center, Ann Arbor.
American Journal of Physical Medicine & Rehabilitation
|April 1, 1989
Summary
Post-polio patients with neuromuscular disease show higher creatine kinase (CK) levels, indicating muscle damage. Muscle overuse may contribute to advanced aging symptoms in these patients.
Area of Science:
- Neurology
- Biochemistry
- Gerontology
Background:
- Elevated creatine kinase (CK) levels are associated with muscle damage and necrosis in neuromuscular conditions.
- Post-polio syndrome (PPS) can lead to chronic neurologic disease and muscle compromise.
Purpose of the Study:
- To investigate serum CK levels in post-polio patients with and without chronic neurologic disease.
- To explore the relationship between CK levels, physical activity, and symptoms in post-polio patients.
Main Methods:
- Serum CK levels were measured in 62 post-polio patients with neurologic disease (Neuro group) and 13 controls.
- Patient groups were matched for age, gender, and time since poliomyelitis onset.
- Correlation analysis was performed between CK levels and self-reported strenuous work and ambulation.
Main Results:
- The Neuro group exhibited significantly higher mean CK levels (211 IU) compared to the Control group (114 IU).
- 40% of the Neuro group had elevated CK levels, versus 8% in the Control group.
- A strong correlation was found between elevated CK and strenuous activity/ambulation within the Neuro group.
Conclusions:
- Chronic muscle overuse may be a factor in the advanced senescence observed in post-polio patients with neuromuscular compromise.
- Elevated CK levels serve as a biomarker for muscle damage in this population.
- Further research into muscle overuse and aging in PPS is warranted.