No short-term effects of high-frequency electromagnetic fields on the mammalian pineal gland
There is ample experimental evidence that changes of earth‐strength static magnetic fields, pulsed magnetic fields, or alternating electric fields (60 Hz) depress the nocturnally enhanced melatonin synthesis of the pineal gland of certain mammals. No data on the effects of high‐frequency electromagn...
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| Veröffentlicht in: | Bioelectromagnetics 1997, Vol.18 (5), p.376-387 |
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| creator | Vollrath, L. Spessert, R. Kratzsch, T. Keiner, M. Hollmann, H. |
| description | There is ample experimental evidence that changes of earth‐strength static magnetic fields, pulsed magnetic fields, or alternating electric fields (60 Hz) depress the nocturnally enhanced melatonin synthesis of the pineal gland of certain mammals. No data on the effects of high‐frequency electromagnetic fields on melatonin synthesis is available. In the present study, exposure to 900 MHz electromagnetic fields [0.1 to 0.6 mW/cm2, approximately 0.06 to 0.36 W/kg specific absorption rate (SAR) in rats and 0.04 W/kg in Djungarian hamsters; both continuous and/or pulsed at 217 Hz, for 15 min to 6 h] at day or night had no notable short‐term effect on pineal melatonin synthesis in male and female Sprague‐Dawley rats and Djungarian hamsters. Pineal synaptic ribbon profile numbers (studied in rats only) were likewise not affected. The 900 MHz electromagnetic fields, unpulsed or pulsed at 217 Hz, as applied in the present study, have no short‐term effect on the mammalian pineal gland. Bioelectromagnetics 18:376–387, 1997. © 1997 Wiley‐Liss, Inc. |
| doi_str_mv | 10.1002/(SICI)1521-186X(1997)18:5<376::AID-BEM5>3.0.CO;2-# |
| format | Article |
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No data on the effects of high‐frequency electromagnetic fields on melatonin synthesis is available. In the present study, exposure to 900 MHz electromagnetic fields [0.1 to 0.6 mW/cm2, approximately 0.06 to 0.36 W/kg specific absorption rate (SAR) in rats and 0.04 W/kg in Djungarian hamsters; both continuous and/or pulsed at 217 Hz, for 15 min to 6 h] at day or night had no notable short‐term effect on pineal melatonin synthesis in male and female Sprague‐Dawley rats and Djungarian hamsters. Pineal synaptic ribbon profile numbers (studied in rats only) were likewise not affected. The 900 MHz electromagnetic fields, unpulsed or pulsed at 217 Hz, as applied in the present study, have no short‐term effect on the mammalian pineal gland. 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No data on the effects of high‐frequency electromagnetic fields on melatonin synthesis is available. In the present study, exposure to 900 MHz electromagnetic fields [0.1 to 0.6 mW/cm2, approximately 0.06 to 0.36 W/kg specific absorption rate (SAR) in rats and 0.04 W/kg in Djungarian hamsters; both continuous and/or pulsed at 217 Hz, for 15 min to 6 h] at day or night had no notable short‐term effect on pineal melatonin synthesis in male and female Sprague‐Dawley rats and Djungarian hamsters. Pineal synaptic ribbon profile numbers (studied in rats only) were likewise not affected. The 900 MHz electromagnetic fields, unpulsed or pulsed at 217 Hz, as applied in the present study, have no short‐term effect on the mammalian pineal gland. Bioelectromagnetics 18:376–387, 1997. © 1997 Wiley‐Liss, Inc.</description><subject>Animals</subject><subject>Arylamine N-Acetyltransferase - metabolism</subject><subject>Cricetinae</subject><subject>Electromagnetic Fields</subject><subject>exposure system</subject><subject>Female</subject><subject>Male</subject><subject>Mammals</subject><subject>melatonin</subject><subject>Melatonin - biosynthesis</subject><subject>Melatonin - blood</subject><subject>Phodopus</subject><subject>pineal gland</subject><subject>Pineal Gland - physiology</subject><subject>Pineal Gland - radiation effects</subject><subject>Pineal Gland - ultrastructure</subject><subject>Rats</subject><subject>Rats, Inbred Strains</subject><subject>Rats, Sprague-Dawley</subject><subject>Reference Values</subject><subject>Species Specificity</subject><subject>Synapses - physiology</subject><subject>Synapses - radiation effects</subject><subject>Synapses - ultrastructure</subject><subject>synaptic ribbons</subject><subject>UHF-frequency band</subject><issn>0197-8462</issn><issn>1521-186X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kF2LEzEYhQdR1rr6E4SAILsXqclkk0y6IqzjbrewtoKfiPCSnXnTjs5HTaZo_70ZW-rFgldJyOE5hydJJpyNOWPpi5P3s3x2ymXKKc_UlxNujD7l2US-FFpNJhezN_T15Vv5SozZOF-cp_TZvWR0iN9PRowbTbMzlT5MHoXwnTGWZUwcJUcmZUZzM0q-zTsSVp3vaY--IegcFn0gnSOrarmizuPPDbbFlmAdP3zX2GWLfVUQV2FdxmBL-hWSxjaNrSvbknXVoq3JsrZt-Th54Gwd8Mn-PE4-Xl1-yK_pzWI6yy9uaCGUktQoXpYCC4EmE0YZngpesjhQFpnWlt-WxlpWMG3RKGedYO4MueNSppnT2onj5PmOu_ZdnBt6aKpQYB03YLcJoA3nRqQmBt_tgoXvQvDoYO2rxvotcAaDcoBBOQwOYXAIg_J4AwlROUBUDoNyEMAgX0AakU_33ZvbBssDcG_4X-Wvqsbtnb7_1t1p-_uKSLpDVqHH3wek9T9AaaElfJ5P4ZM00-v5VwVX4g8Laali</recordid><startdate>1997</startdate><enddate>1997</enddate><creator>Vollrath, L.</creator><creator>Spessert, R.</creator><creator>Kratzsch, T.</creator><creator>Keiner, M.</creator><creator>Hollmann, H.</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>1997</creationdate><title>No short-term effects of high-frequency electromagnetic fields on the mammalian pineal gland</title><author>Vollrath, L. ; Spessert, R. ; Kratzsch, T. ; Keiner, M. ; Hollmann, H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3665-961dd3ec3e9839691231d00975c877a1bd9aa0c07ae96faf30f4e1f15528f77f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Animals</topic><topic>Arylamine N-Acetyltransferase - metabolism</topic><topic>Cricetinae</topic><topic>Electromagnetic Fields</topic><topic>exposure system</topic><topic>Female</topic><topic>Male</topic><topic>Mammals</topic><topic>melatonin</topic><topic>Melatonin - biosynthesis</topic><topic>Melatonin - blood</topic><topic>Phodopus</topic><topic>pineal gland</topic><topic>Pineal Gland - physiology</topic><topic>Pineal Gland - radiation effects</topic><topic>Pineal Gland - ultrastructure</topic><topic>Rats</topic><topic>Rats, Inbred Strains</topic><topic>Rats, Sprague-Dawley</topic><topic>Reference Values</topic><topic>Species Specificity</topic><topic>Synapses - physiology</topic><topic>Synapses - radiation effects</topic><topic>Synapses - ultrastructure</topic><topic>synaptic ribbons</topic><topic>UHF-frequency band</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Vollrath, L.</creatorcontrib><creatorcontrib>Spessert, R.</creatorcontrib><creatorcontrib>Kratzsch, T.</creatorcontrib><creatorcontrib>Keiner, M.</creatorcontrib><creatorcontrib>Hollmann, H.</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Bioelectromagnetics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vollrath, L.</au><au>Spessert, R.</au><au>Kratzsch, T.</au><au>Keiner, M.</au><au>Hollmann, H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>No short-term effects of high-frequency electromagnetic fields on the mammalian pineal gland</atitle><jtitle>Bioelectromagnetics</jtitle><addtitle>Bioelectromagnetics</addtitle><date>1997</date><risdate>1997</risdate><volume>18</volume><issue>5</issue><spage>376</spage><epage>387</epage><pages>376-387</pages><issn>0197-8462</issn><eissn>1521-186X</eissn><abstract>There is ample experimental evidence that changes of earth‐strength static magnetic fields, pulsed magnetic fields, or alternating electric fields (60 Hz) depress the nocturnally enhanced melatonin synthesis of the pineal gland of certain mammals. No data on the effects of high‐frequency electromagnetic fields on melatonin synthesis is available. In the present study, exposure to 900 MHz electromagnetic fields [0.1 to 0.6 mW/cm2, approximately 0.06 to 0.36 W/kg specific absorption rate (SAR) in rats and 0.04 W/kg in Djungarian hamsters; both continuous and/or pulsed at 217 Hz, for 15 min to 6 h] at day or night had no notable short‐term effect on pineal melatonin synthesis in male and female Sprague‐Dawley rats and Djungarian hamsters. Pineal synaptic ribbon profile numbers (studied in rats only) were likewise not affected. The 900 MHz electromagnetic fields, unpulsed or pulsed at 217 Hz, as applied in the present study, have no short‐term effect on the mammalian pineal gland. Bioelectromagnetics 18:376–387, 1997. © 1997 Wiley‐Liss, Inc.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><pmid>9209719</pmid><doi>10.1002/(SICI)1521-186X(1997)18:5<376::AID-BEM5>3.0.CO;2-#</doi><tpages>12</tpages></addata></record> |
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| subjects | Animals Arylamine N-Acetyltransferase - metabolism Cricetinae Electromagnetic Fields exposure system Female Male Mammals melatonin Melatonin - biosynthesis Melatonin - blood Phodopus pineal gland Pineal Gland - physiology Pineal Gland - radiation effects Pineal Gland - ultrastructure Rats Rats, Inbred Strains Rats, Sprague-Dawley Reference Values Species Specificity Synapses - physiology Synapses - radiation effects Synapses - ultrastructure synaptic ribbons UHF-frequency band |
| title | No short-term effects of high-frequency electromagnetic fields on the mammalian pineal gland |
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