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Titolo:
DO GEOMAGNETIC DISTURBANCES OF SOLAR ORIGIN AFFECT ARTERIAL BLOOD-PRESSURE
Autore:
GHIONE S; MEZZASALMA L; DELSEPPIA C; PAPI F;
Indirizzi:
CNR,INST CLIN PHYSIOL,VIA SAVI 8 I-56126 PISA ITALY
Titolo Testata:
Journal of human hypertension
fascicolo: 11, volume: 12, anno: 1998,
pagine: 749 - 754
SICI:
0950-9240(1998)12:11<749:DGDOSO>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
OSCILLATING MAGNETIC-FIELDS; INFLUENCES SENSITIVITY; ELECTRICAL STIMULI; EXPOSURE; HUMANS; ORIENTATION; ANALGESIA; PIGEONS; MICE;
Keywords:
ARTERIAL BLOOD PRESSURE; GEOMAGNETIC ACTIVITY; ARTERIAL BLOOD PRESSURE MONITORING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
S. Ghione et al., "DO GEOMAGNETIC DISTURBANCES OF SOLAR ORIGIN AFFECT ARTERIAL BLOOD-PRESSURE", Journal of human hypertension, 12(11), 1998, pp. 749-754

Abstract

Objective: Episodic reports suggest that geomagnetic disturbances of solar origin are associated with biological and clinical events, including increased arterial blood pressure (BP). We reassessed this aspectby relating solar activity levels to ambulatory BP measured in our out-patient population. Patients and methods: The ambulatory BP measurements of 447 consecutive untreated patients attending a hypertension out-patient clinic who did a monitoring for diagnostic purposes over 5 years were retrieved, The mean daytime, night-time and 24-h BP and heart rate values were related to the temporally corresponding geomagneticindex k-sum obtained by the nearest observatory. K-sum is a local measurement of the irregular disturbances of the geomagnetic field causedby solar particle radiation. Results: Significant to highly significant positive correlations were observed for k-sum with systolic (daytime and 24h) and diastolic BP (daytime, night-time and 24 h), but not with heart rate. No correlations were found with the k-sum of 1 or 2 days before the monitorings. Multiple correlations which also included other potential confounding factors (date, age) confirmed a significant effect of k-sum on BP, Comparison made in season-matched subgroups of quiet and disturbed days (using three different criteria of definition), always showed significantly higher values in the disturbed days forall BP parameters except systolic night-time pressure. The differencebetween the quietest and the most disturbed days was of about 6 to 8 mm Hg for 24-h systolic and diastolic BP. Conclusion: These results are unlikely to be due to unrelated secular trends, but seem to reflect a real relation between magnetic field disturbances and BP.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 21:14:55