Research Topics
| M R CookSummaryAffiliation: Midwest Research Institute Country: USA Publications
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Detail Information
Publications
Morning urinary assessment of nocturnal melatonin secretion in older womenM R Cook
Midwest Research Institute, Kansas City, Missouri 64110, USA
J Pineal Res 28:41-7. 2000..The inclusion of morning urine samples in epidemiological studies of cancer could allow cost-effective, widespread testing of the role played by melatonin in human health and disease...- Heart rate variability and physiological arousal in men exposed to 60 Hz magnetic fieldsC Graham
Midwest Research Institute, Kansas City, MO 64110, USA
Bioelectromagnetics 21:480-2. 2000..This may account for the observed differences in results. Further research is needed to determine if field exposure interacts with physiological arousal mechanisms to alter autonomic nervous system control over cardiac rhythms... - Exposure to strong ELF magnetic fields does not alter cardiac autonomic control mechanismsC Graham
Midwest Research Institute, Kansas City, MO 64110, USA
Bioelectromagnetics 21:413-21. 2000.... - Nocturnal exposure to intermittent 60 Hz magnetic fields alters human cardiac rhythmA Sastre
Midwest Research Institute, Kansas City, Missouri 64110, USA
Bioelectromagnetics 19:98-106. 1998.... - Multi-night exposure to 60 Hz magnetic fields: effects on melatonin and its enzymatic metaboliteC Graham
Midwest Research Institute, Kansas City, Missouri, USA
J Pineal Res 28:1-8. 2000..Additional research with longer periods of controlled exposure may be warranted... - Melatonin and 6-OHMS in high-intensity magnetic fieldsC Graham
Midwest Research Institute, Kansas City, Missouri 64110, USA
J Pineal Res 31:85-8. 2001..These results demonstrate that the nocturnal secretion and metabolism of melatonin are not altered in humans by field exposure at an intensity over 600 times higher than that typically encountered in the home... 
Examination of the melatonin hypothesis in women exposed at night to EMF or bright lightC Graham
Midwest Research Institute, Kansas City, Missouri, USA
Environ Health Perspect 109:501-7. 2001..Taken together, these results are consistent with a growing body of evidence which generally suggests that environmental EMF exposure has little or no effect on the parameters measured in this report...- Cardiac autonomic control mechanisms in power-frequency magnetic fields: a multistudy analysisC Graham
Midwest Research Institute, Kansas City, Missouri, USA
Environ Health Perspect 108:737-42. 2000.... - Human melatonin during continuous magnetic field exposureC Graham
Midwest Research Institute, Kansas City, MO 64110, USA
Bioelectromagnetics 18:166-71. 1997..We conclude that the intermittent and continuous exposure conditions used in our laboratory to date are not effective in altering nocturnal blood levels of melatonin in human volunteers... - Nocturnal magnetic field exposure: gender-specific effects on heart rate variability and sleepC Graham
Midwest Research Institute, 425 Volker Boulevard, Kansas City, MO 64110, USA
Clin Neurophysiol 111:1936-41. 2000..To determine if controlled exposure to power-frequency magnetic fields alters heart rate variability (HRV) and polysomnographic endpoints in healthy men (n=22) and women (n=24), 40-60 years of age... - Brain frequency magnetic fields alter cardiac autonomic control mechanismsA Sastre
Midwest Research Institute, 425 Volker Boulevard, Kansas City, MO 64110, USA
Clin Neurophysiol 111:1942-8. 2000..Given the central origin of autonomic cardiac control, we determined if field exposure in the beta(1) EEG/MEG frequency range was a more effective stimulus for HRV alteration than 60 Hz fields, and explored the mechanisms involved... - Prediction of nocturnal plasma melatonin from morning urinary measuresC Graham
Midwest Research Institute, Kansas City, Missouri 64110, USA
J Pineal Res 24:230-8. 1998..These results support the inclusion of morning urine samples to assess the contribution of the hormone melatonin in occupational or residential studies involving healthy, young men... - Human sleep in 60 Hz magnetic fieldsC Graham
Midwest Research Institute, Kansas City, Missouri 64110, USA
Bioelectromagnetics 20:277-83. 1999..Poor sleep quality, however, can have a detrimental influence on worker safety and performance, and has been associated with decrements in memory and learning processes. Additional research appears warranted... - Test facility for human exposure to AC and DC magnetic fieldsP Doynov
Midwest Research Institute, Kansas City, Missouri 64110, USA
Bioelectromagnetics 20:101-11. 1999..The new facilities provide a comprehensive capability for laboratory-based human research on the potential effects of exposure to AC and DC magnetic fields... - Human exposure to 60-Hz magnetic fields: neurophysiological effectsC Graham
Midwest Research Institute, Kansas City, Missouri 64110, USA
Int J Psychophysiol 33:169-75. 1999.... - Self-report of circadian type reflects the phase of the melatonin rhythmM Gibertini
Midwest Research Institute, Kansas City, MO 64110, USA
Biol Psychol 50:19-33. 1999..Age was related to both melatonin acrophase and circadian type but did not explain the relationship between them. The results replicate and extend findings on circadian type and psychological and physiological variables... - All-night exposure to EMF does not alter urinary melatonin, 6-OHMS or immune measures in older men and womenC Graham
Midwest Research Institute, Kansas City, Missouri 64110, USA
J Pineal Res 31:109-13. 2001..The present results replicate and extend earlier negative findings based on the exposure of young men to power-frequency magnetic fields...