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2009               Ph.D., Environmental Health Sciences

                       Johns Hopkins University, Bloomberg School of Public Health

                        Baltimore, MD, USA


2004               BS, Cell and Molecular Biology

                        BA, Philosophy

                        Tulane University

                        New Orleans, LA, USA

Research description

My research focuses on the question of how factors in early life, such as maternal nutrition and metabolic conditions, infectious diseases, and inflammation, can affect later risk of psychiatric disorders, including non-affective psychosis and autism spectrum disorders.  To evaluate these relationships, I use both Swedish population health register data and molecular analysis of archived biological samples, such as dried blood spots collected during routine neonatal screening for metabolic disorders.


Association of Gestational Weight Gain and Maternal Body Mass Index in Early Pregnancy With Risk for Nonaffective Psychosis in Offspring
Mackay E, Dalman C, Karlsson H, Gardner Rm
JAMA psychiatry 2017;74(4):339-349

Gestational age at birth and academic performance: population-based cohort study
Abel K, Heuvelman H, Wicks S, Rai D, Emsley R, Gardner R, et al
International journal of epidemiology 2017;46(1):324-335

Maternal Polycystic Ovary Syndrome and Risk for Attention-Deficit/Hyperactivity Disorder in the Offspring
Kosidou K, Dalman C, Widman L, Arver S, Lee Bk, Magnusson C, et al
Biological psychiatry 2017;82(9):651-659

Associations Between Maternal Infection During Pregnancy, Childhood Infections, and the Risk of Subsequent Psychotic Disorder--A Swedish Cohort Study of Nearly 2 Million Individuals
Blomström Å, Karlsson H, Gardner R, Jörgensen L, Magnusson C, Dalman C
Schizophrenia bulletin 2016;42(1):125-33

Maternal polycystic ovary syndrome and the risk of autism spectrum disorders in the offspring: a population-based nationwide study in Sweden
Kosidou K, Dalman C, Widman L, Arver S, Lee Bk, Magnusson C, et al
Molecular psychiatry 2016;21(10):1441-8

Maternal vitamin D deficiency and the risk of autism spectrum disorders: population-based study
Magnusson C, Lundberg M, Lee Bk, Rai D, Karlsson H, Gardner R, et al
BJPsych open 2016;2(2):170-172

Influence of maternal infections on neonatal acute phase proteins and their interaction in the development of non-affective psychosis
Blomström Å, Gardner Rm, Dalman C, Yolken Rh, Karlsson H
Translational psychiatry 2015;5():e502-

Maternal body mass index during early pregnancy, gestational weight gain, and risk of autism spectrum disorders: Results from a Swedish total population and discordant sibling study
Gardner Rm, Lee Bk, Magnusson C, Rai D, Frisell T, Karlsson H, et al
International journal of epidemiology 2015;44(3):870-83

Maternal folate status as a risk factor for autism spectrum disorders: a review of existing evidence
Devilbiss Ea, Gardner Rm, Newschaffer Cj, Lee Bk
The British journal of nutrition 2015;114(5):663-72

Maternal hospitalization with infection during pregnancy and risk of autism spectrum disorders
Lee Bk, Magnusson C, Gardner Rm, Blomström Å, Newschaffer Cj, Burstyn I, et al
Brain, behavior, and immunity 2015;44():100-5

Arsenic exposure and cell-mediated immunity in pre-school children in rural Bangladesh
Ahmed S, Moore Se, Kippler M, Gardner R, Hawlader Md, Wagatsuma Y, et al
Toxicological sciences : an official journal of the Society of Toxicology 2014;141(1):166-75

Activation of kynurenine pathway in ex vivo fibroblasts from patients with bipolar disorder or schizophrenia: cytokine challenge increases production of 3-hydroxykynurenine
Johansson As, Owe-larsson B, Asp L, Kocki T, Adler M, Hetta J, et al
Journal of psychiatric research 2013;47(11):1815-23

Environmental exposure to metals and children's growth to age 5 years: a prospective cohort study
Gardner Rm, Kippler M, Tofail F, Bottai M, Hamadani J, Grandér M, et al
American journal of epidemiology 2013;177(12):1356-67

Neonatal levels of acute phase proteins and later risk of non-affective psychosis
Gardner Rm, Dalman C, Wicks S, Lee Bk, Karlsson H
Translational psychiatry 2013;3():e228-

Brief Report: Maternal Smoking During Pregnancy and Autism Spectrum Disorders
Lee Bk, Gardner Rm, Dal H, Svensson A, Galanti Mr, Rai D, et al

Early-life cadmium exposure and child development in 5-year-old girls and boys: a cohort study in rural Bangladesh
Kippler M, Tofail F, Hamadani Jd, Gardner Rm, Grantham-mcgregor Sm, Bottai M, et al
Environmental health perspectives 2012;120(10):1462-8

Maternal cadmium exposure during pregnancy and size at birth: a prospective cohort study
Kippler M, Tofail F, Gardner R, Rahman A, Hamadani Jd, Bottai M, et al
Environmental health perspectives 2012;120(2):284-9

Pregnancy and the methyltransferase genotype independently influence the arsenic methylation phenotype
Gardner Rm, Engström K, Bottai M, Hoque Wa, Raqib R, Broberg K, et al
Pharmacogenetics and genomics 2012;22(7):508-16

Arsenic-Associated Oxidative Stress, Inflammation, and Immune Disruption in Human Placenta and Cord Blood
Ahmed S, Khoda Sme, Rekha Rs, Gardner Rm, Ameer Ss, Moore S, et al

Arsenic methylation efficiency increases during the first trimester of pregnancy independent of folate status
Gardner Rm, Nermell B, Kippler M, Grander M, Li L, Ekstrom Ec, et al

Critical windows of exposure for arsenic-associated impairment of cognitive function in pre-school girls and boys: a population-based cohort study
Hamadani Jd, Tofail F, Nermell B, Gardner R, Shiraji S, Bottai M, et al

Persistent exposure to arsenic via drinking water in rural Bangladesh despite major mitigation efforts
Gardner R, Hamadani J, Grandér M, Tofail F, Nermell B, Palm B, et al
American journal of public health 2011;101 Suppl 1():S333-8

Differential immunotoxic effects of inorganic and organic mercury species in vitro
Gardner Rm, Nyland Jf, Silbergeld Ek
Toxicology letters 2010;198(2):182-90

Mercury exposure, serum antinuclear/antinucleolar antibodies, and serum cytokine levels in mining populations in Amazonian Brazil: a cross-sectional study
Gardner Rm, Nyland Jf, Silva Ia, Ventura Am, De Souza Jm, Silbergeld Ek
Environmental research 2010;110(4):345-54

Mercury Induces an Unopposed Inflammatory Response in Human Peripheral Blood Mononuclear Cells in Vitro
Gardner Rm, Nyland Jf, Evans Sl, Wang Sb, Doyle Km, Crainiceanu Cm, et al

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