Microwave effects on isolated chick embryo hearts

Journal Article · Wed Jan 01 00:00:00 EST 1986 · Bioelectromagnetics (N.Y.); (United States)

DOI:https://doi.org/10.1002/bem.2250070403· OSTI ID:6774165

Caddemi, A; Tamburello, C C; Zanforlin, L; Torregrossa, M V

This study was designed to examine the effects of microwaves on the electric activity of hearts as a means of elucidating interactive mechanisms of nonionizing radiation with cardiac tissue. Experiments were performed on isolated hearts of 9-12-day-old chick embryos placed in small petri dishes. Oxygenated isotonic Ringer's solution at 37 degrees C permitted heart survival. Samples were irradiated at 2.45 GHz with a power density of 3 mW/cm2. The heart signal was detected with a glass micropipet inserted into the sinoatrial node and examined by means of a Berg-Fourier analyzer. Pulsed microwaves caused the locking of the heartbeat to the modulation frequency, whereas continuous wave irradiation might have induced slight bradycardia. Pulsed fields induced stimulation or regularization of the heartbeat in arrhythmia, fibrillation, or arrest of the heart.

• Research Organization: Universita di Palermo, Italy
• OSTI ID: 6774165
• Journal Information: Bioelectromagnetics (N.Y.); (United States), Vol. 4
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
HEART
BIOELECTRICITY
MICROWAVE RADIATION
BIOLOGICAL EFFECTS
CHICKENS
EMBRYOS
IN VITRO
PREGNANCY
ANIMALS
BIRDS
BODY
CARDIOVASCULAR SYSTEM
ELECTRICITY
ELECTROMAGNETIC RADIATION
FOWL
ORGANS
RADIATIONS
VERTEBRATES
560400* - Other Environmental Pollutant Effects