Evaluation of heart rate variability, blood pressure and lipid profile alterations from dual transceiver mobile phone radiation exposure

Abstract

Evaluation of heart rate variability, blood pressure and lipid profile alterations from dual transceiver mobile phone radiation exposure Jamil Dauda Usman, Mikail Umar Isyaku, Adesoji Adedipe Fasanmade. Evaluation of heart rate variability, blood pressure and lipid profile alterations from dual transceiver mobile phone radiation exposure. J Basic Clin Physiol Pharmacol. 2020 Nov 4. doi: 10.1515/jbcpp-2020-0047. Abstract Objectives Electromagnetic fields have been reported to alter electrical activities in the brain and heart. However, there is paucity of information on the potential functional alterations that magnetic fields from mobile phone could cause to the heart. This study investigated heart rate variability (HRV), blood pressure (BP) and lipid profile in Wistar rats exposed to electromagnetic field radiation from a dual transceiver mobile phone (DTrMP). Methods Twenty-one male albino Wistar rats (140-180 g) were randomly assigned to two major groups positioned 5 m apart as follows: control: no phone (n=7) and treatment group (n=14) continuously exposed to electromagnetic field from Tecno T312 DTrMP 900/1800 MHz set in silence mode. Experimental treatment consisted in 10 min calls/day, directed to this device for a period of six weeks. Seven animals from the treatment group were allowed to recover for a period of two weeks after exposure. HRV, systolic, diastolic and mean arterial BP were noninvasively investigated, while serum lipid profile and heart tissue nitric oxide (NO) activities were determined using standard procedures. Results There was significant (p<0.05) increase in systolic, diastolic, mean arterial BP and a decrease in HRV. Serum high density lipoproteins decreased, while total cholesterol, atherogenic indices, and heart NO levels increased significantly in the radiation exposed animals. The alterations observed in exposed animals remained unchanged even after the recovery period. Conclusions These results suggest that exposure to electromagnetic radiation from dual transceiver mobile phones could be a risk factor to increase in blood pressure. pubmed.ncbi.nlm.nih.gov

AI evidence extraction

Main findings

In rats exposed to electromagnetic field radiation from a dual transceiver mobile phone, systolic/diastolic/mean arterial blood pressure increased and HRV decreased versus controls. HDL decreased while total cholesterol, atherogenic indices, and heart NO levels increased; these alterations persisted after a 2-week recovery period.

Outcomes measured

• heart rate variability (HRV)
• blood pressure (systolic, diastolic, mean arterial)
• serum lipid profile (HDL, total cholesterol, atherogenic indices)
• heart tissue nitric oxide (NO) levels

Limitations

• Animal study (Wistar rats), limiting direct generalization to humans
• Exposure characterization limited in abstract (no SAR reported; distance to phone not specified)
• Small sample size and unequal group sizes (control n=7; exposed n=14)

Suggested hubs

• mobile-phones-rf (0.9)
  Exposure source is a dual transceiver mobile phone (900/1800 MHz) with physiological outcomes assessed.

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        "source": "mobile phone",
        "frequency_mhz": null,
        "sar_wkg": null,
        "duration": "10 min calls/day for 6 weeks; subset had 2-week recovery post-exposure"
    },
    "population": "Male albino Wistar rats (140–180 g)",
    "sample_size": 21,
    "outcomes": [
        "heart rate variability (HRV)",
        "blood pressure (systolic, diastolic, mean arterial)",
        "serum lipid profile (HDL, total cholesterol, atherogenic indices)",
        "heart tissue nitric oxide (NO) levels"
    ],
    "main_findings": "In rats exposed to electromagnetic field radiation from a dual transceiver mobile phone, systolic/diastolic/mean arterial blood pressure increased and HRV decreased versus controls. HDL decreased while total cholesterol, atherogenic indices, and heart NO levels increased; these alterations persisted after a 2-week recovery period.",
    "effect_direction": "harm",
    "limitations": [
        "Animal study (Wistar rats), limiting direct generalization to humans",
        "Exposure characterization limited in abstract (no SAR reported; distance to phone not specified)",
        "Small sample size and unequal group sizes (control n=7; exposed n=14)"
    ],
    "evidence_strength": "low",
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    "peer_reviewed_likely": "yes",
    "keywords": [
        "radiofrequency",
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        "blood pressure",
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