A REVIEW OF THE EARTH OPEN SOURCE (EOS) REPORT
“ROUNDUP AND BIRTH DEFECTS: IS THE PUBLIC BEING KEPT IN THE DARK?”
This Report was prepared for the APVMA by
Scitox Assessment Services
Canberra, ACT, Australia
July 2013
© Australian Pesticides and Veterinary Medicines Authority 2013
ISBN: 978-1-922188-42-7 (electronic)
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A REVIEW OF THE EARTH OPEN SOURCE (EOS) REPORT
“ROUNDUP AND BIRTH DEFECTS: IS THE PUBLIC BEING KEPT IN THE DARK?”
Prepared for the APVMA
by
Scitox Assessment Services
Canberra, ACT, Australia
July 2013
TABLE OF CONTENTS
TABLE OF CONTENTS 4
1. SUMMARY 7
1.1 The association between glyphosate / glyphosate-based herbicides and developmental malformations 7
1.2 The association between glyphosate / glyphosate-based herbicides, endocrine disruption and reproductive toxicity 9
1.3 Evidence for the genotoxicity and carcinogenicity of glyphosate / glyphosate-based herbicides 10
1.4 Neurotoxicity of glyphosate / glyphosate-based herbicides 11
1.5 Human exposure to glyphosate 11
1.6 Overseas assessment activity 12
Conclusions 12
2. MAIN BODY OF THE REVIEW 14
2.1 The association between glyphosate / glyphosate—based herbicides and developmental malformations 14
2.1.1 Effects in toad and bird embryos 14
2.1.2 Effects in laboratory animals 15
2.1.3 Epidemiological evidence 18
2.2 The association between glyphosate / glyphosate-based herbicides, endocrine disruption and reproductive toxicity 22
2.2.1 Reproductive effects of glyphosate in vivo 23
2.2.2 Evidence of endocrine modulation in other studies 24
2.2.3 Testicular carcinogenicity 24
2.3 Evidence for the genotoxicity of glyphosate / glyphosate-based herbicides 28
2.4 Carcinogenicity of glyphosate / glyphosate-based herbicides 31
2.4.1 Evidence from studies in laboratory animals 31
2.4.2 Evidence from human populations 34
2.5 Neurotoxicity of glyphosate / glyphosate-based herbicides 36
BIBLIOGRAPHY 38
APPENDIX 1: ASSESSMENTS OF DEVELOPMENTAL STUDIES IN RATS 50
APPENDIX 2: ASSESSMENTS OF DEVELOPMENTAL STUDIES IN RABBITS 53
APPENDIX 3: ASSESSMENTS OF REPRODUCTIVE TOXICITY STUDIES 60
A3.1 Rats 60
APPENDIX 4: STUDY ASSESSMENTS PERFORMED BY MARK JENNER, SCITOX ASSESSMENT SERVICES 62
A4.1 Effects of a glyphosate-based herbicide formulation on gene expression in vitro 62
A4.2 Cytotoxicity of glyphosate, AMPA and glyphosate-based herbicides in vitro 63
A4.3 Cytotoxicity, anti-estrogenic and anti–androgenic activity, and genotoxicity of glyphosate and glyphosate-based herbicides in vitro 67
A4.4 Developmental and reproductive effects of glyphosate-based herbicide in amphibians and birds 71
A4.5 Developmental and reproductive effects of a glyphosate-based herbicide in rats 74
A4.6 Reproductive effects of glyphosate in male rabbits 83
A4.7 Dermal carcinogenicity of a glyphosate-based herbicide in mice 85
A4.8 Epidemiological Study 88
GLOSSARY OF TERMS AND ABBREVIATIONS
AChE acetylcholinesterase
ADD/ADHD attention deficit disorder / attention deficit and hyperactivity disorder
ADI acceptable daily intake
AMPA aminomethyl sulphonic acid
APVMA Australian Pesticides and Veterinary Medicines Authority
BNMN binucleated cells with micronuclei
BVL (German) Bundesamt fur Verbraucherschutz und Lebensmittelsicherheit
bw body weight
CFR conditional fecundability ratio
ChE cholinesterase
CI confidence interval
DNA deoxyribonucleic acid
DoHA Department of Health and Ageing
DSEWPaC Department of Sustainability, Environment, Water, Population and Communities
EOS Earth Open Source
EU European Union
g gram
GBHF glyphosate-based herbicide formulation
GC gas chromatography
GD gestation day
GIT gastro-intestinal tract
g/L grams per litre
GLP good laboratory practice
GM genetically modified
h hour
ha hectare
hAR human androgen receptor
hER human oestrogen receptor
HC historical control
HCL hairy cell leukaemia
IC50 concentration inhibiting a chemical reaction by 50%
IP intraperitoneal route of administration
IPA isopropylamino
IV intravenous route of administration
JMPR Joint FAO/WHO Meeting on Pesticide Residues
kg kilogram
km kilometre
L litre
lb/gal pounds per gallon
LC50 lethal concentration to 50% of test cells or animals
LD50 lethal dose to 50% of test animals
LH luteinising hormone
LOD limit of detection
LOEL lowest observed effect level
LOQ limit of quantification
µg microgram
M molar (concentration)
mg milligram
mg/kg bw/d milligrams per kilogram bodyweight per day
mL millilitre
min minute
mM millimolar (concentration)
MM multiple myeloma
mo month
MRL maximum residue limit or level
MTT 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
NEDI national estimated daily intake
ng nanogram
NHL non-Hodgkin’s lymphoma
NOAEL no observed adverse effect level
NOEL no observed effect level
NTP US National Toxicology Program
OECD Organisation for Economic Cooperation and Development
OR odds ratio
PND post natal day
PO oral route of administration
POEA polyoxyethylene tallow amine
ppb parts per billion
ppm parts per million
RA retinoic acid
RBC red blood cell
RNA ribonucleic acid
RR relative risk
s second
SCE sister chromatid exchange
StAR steroidogenic acute regulatory protein
TTP time to pregnancy
US EPA United States Environmental Protection Agency
WHO World Health Organization
wk week
yr year
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