Funding for this research has been provided by the

Centers for Disease Control and Prevention, the National

Institutes of Health, and the US Environmental Protection Agency.

Phone: 1-888-892-0074 Email: PBBregistry@emory.edu

Website: www.PBBregistry.emory.edu

Research Findings Related to the Michigan PBB Contamination• SomewomenwithhighexposuretoPBBhadfewerdays

betweenmenstrualperiods,moredaysofbleeding,andlowerestrogenlevels.However,therewasnoevidencethatthesewomenhadreducedfertility.

• TherewereafewmorebreastcancercasesamongwomenwithhighexposuretoPBBthanexpected.

• SomemenwithhighPBBexposureweremorelikelytoreportthyroiddisease.

• PBBwastransferredtochildreninthewombandthroughbreastmilk.ChildrenwhowerebornaftercontaminatedproductswereremovedfromfarmshadPBBdetectedintheirblood,andthosewhowerebreastfedweremuchmorelikelytohavePBBintheirblood.

• Onaverage,breastfeddaughtersofwomenwithhighPBBexposurestartedmenstruatingayearearlierthanunexposedgirls.

• DaughtersofwomenwithhighexposuretoPBBweremorelikelytoexperienceamiscarriage.

• SonsofwomenwithhighexposuretoPBBweremorelikelytoreportagenitalorurinarycondition.

The Michigan PBB R e g i s t r yFormoreinformationpleasevisitthePBBRegistrywebsiteat

www.PBBregistry.emory.edu

EmoryUniversityPBBResearchTeam

PBB and Michigan ResidentsIn the 1970’s, the Michigan ChemicalCompanymadetwoproductsatthesameplant: polybrominated biphenyls (PBB),a fire-retardant chemical used in themanufactureofelectricalappliances,andmagnesium oxide, a nutritional supple-ment for livestock feed. In 1973, thecompany accidentally shipped PBB tothe Farm Bureau instead of magnesiumoxide.ThePBBwasmixed into livestockfeedandeatenbycattle,pigs,andchick-ens. Contaminated milk, beef, and otherfarm products were sold throughout thestate until the accident was discoveredaboutayearlater.PeopleinMichiganwhoatecontaminatedmeatordrankcontami-natedmilkwereexposedtoPBB.

The Michigan PBB Registry

In order to study the possible long-termhealtheffectsofPBBexposure,theMichiganDepartment of Community Health (MDCH)established the PBB Registry in 1976. At

first, the registry consisted of approximately4,000 people throughout Michigan who wereexposed to PBB by eating contaminated food.

The registry now also includes their childrenandgrandchildren,whomayhavebeenexposed

in the womb and through breastfeeding. MDCHmanagedtheregistryformorethan30years,but

it no longer has the resources to continue. MDCHis transferring management of the Michigan PBB

Registry to Emory University, under the leadershipofDr.MicheleMarcus.Dr.Marcusandherteamhave

workedtogetherwiththeMDCHformanyyears.

HOWDOIKNOWWHETHERI’VEBEENEXPOSEDTOPBB?

Your blood was tested for PBB when you first enrolled in the study, and our team can provide you with those results. About 1,000 of the registry members did not have PBB detected in their blood.

CANIHAVEMYBLOODTESTEDFORPBBNOW?

Yes. These tests are not routinely available at doctors’ offices, but blood samples can be sent to Emory University for analysis. For additional information, please contact us.

CANMYFAMILYMEMBERSOROTHERSWHOATE CONTAMINATEDFOODJOINTHEPBBREGISTRYNOW?

Yes. These individuals will need to complete consent forms, a short questionnaire, and have their blood tested for PBB. For additional information, please contact us.

DOESPBBLEAVETHEBODYAFTEREXPOSURE?

Yes, gradually. On average, it takes about 15 years for half of the PBB in the body to be eliminated. There is currently no medical treatment that will lower PBB levels in the human body.

ISTHEREANYINFORMATIONABOUTPBBTHATICOULDSHAREWITHMYDOCTOR?

An information sheet is available for download from the PBB Registry website or can be requested by contacting us.

WHYCONTINUETHEPBBREGISTRY?

Some of the health effects of PBB exposure may take many years to develop and will only be found by continued research. The study findings can help you and your doctor decide if you need more frequent tests for certain conditions.

Our research has shown health effects among the sons and daughters of people who ate contaminated food. It is important to continue to study the health of these children as they grow up and have children of their own.

HOWDOICONTINUETOBEINCLUDEDINTHE PBBREGISTRY?

In order to stay in the PBB Registry, you must provide consent to transfer your PBB records from MDCH to Emory University. Consent forms can be downloaded from the PBB Registry website or can be requested by contacting us. By transferring your health records to Emory University, you will receive up-to-date informa-tion on study findings and will have opportunities to guide future research priorities.

HOWELSECANIBEINVOLVED?

Several community meetings are planned to discuss research findings and to solicit your input on future research priorities. An advisory board composed of PBB Registry members and local health professionals is being established to help guide the researchers.

HOWDOICONTACTTHEEMORYUNIVERSITYPBBRESEARCHTEAM?

Please call us toll-free at 1-888-892-0074 or send an e-mail to PBBregistry@emory.edu. More information can also be found on the PBB Registry website at www.PBBregistry.emory.edu

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