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A. Umbers · SciRah

Researcher profile · Semantic Scholar

A. Umbers

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A. Umbers — researcher profile on SciRah

h-index: 19
Works: 42
Citations: 1,197

Most-cited papers

Malaria in pregnancy: small babies, big problem.
A. Umbers, E. Aitken, S. Rogerson
2011Trends in Parasitology202 citations
Semantic Scholar
Mutational screening of FOXO3A and FOXO1A in women with premature ovarian failure.
W. Watkins, A. Umbers, Kathryn J. Woad, S. E. Harris +3 more
2006Fertility and Sterility109 citations Open access
Semantic Scholar
Sulphadoxine-pyrimethamine plus azithromycin for the prevention of low birthweight in Papua New Guinea: a randomised controlled trial
H. Unger, M. Ome-Kaius, R. Wangnapi, A. Umbers +17 more
2015BMC Medicine100 citations Open access
Semantic Scholar
Placental malaria-associated inflammation disturbs the insulin-like growth factor axis of fetal growth regulation.
A. Umbers, Philippe Boeuf, C. Clapham, D. Stanisic +7 more
2011Journal of Infectious Diseases92 citations Open access
Semantic Scholar
Prevalence and risk factors for Chlamydia trachomatis, Neisseria gonorrhoeae and Trichomonas vaginalis infection in pregnant women in Papua New Guinea
R. Wangnapi, S. Soso, H. Unger, C. Sawera +10 more
2014Sexually Transmitted Infections75 citations Open access
Semantic Scholar
Fetal Testis Dysgenesis and Compromised Leydig Cell Function in Tgfbr3 (Betaglycan) Knockout Mice1
M. A. Sarraj, R. Escalona, A. Umbers, H. Chua +5 more
2010Biology of Reproduction73 citations
Semantic Scholar
Risk factors and pregnancy outcomes associated with placental malaria in a prospective cohort of Papua New Guinean women
E. Lufele, A. Umbers, J. Ordi, M. Ome-Kaius +7 more
2017Malaria Journal71 citations Open access
Semantic Scholar
Insight into the pathogenesis of fetal growth restriction in placental malaria: decreased placental glucose transporter isoform 1 expression.
U. Chandrasiri, C. L. Chua, A. Umbers, E. Chaluluka +3 more
2014Journal of Infectious Diseases56 citations Open access
Semantic Scholar
Differential expression of TGFBR3 (betaglycan) in mouse ovary and testis during gonadogenesis
M. A. Sarraj, H. Chua, A. Umbers, K. Loveland +2 more
2007Growth Factors42 citations
Semantic Scholar
Pregnancy and Malaria Exposure Are Associated with Changes in the B Cell Pool and in Plasma Eotaxin Levels
P. Requena, J. Campo, A. Umbers, M. Ome +19 more
2014Journal of Immunology40 citations Open access
Semantic Scholar
Accuracy of an HRP-2/panLDH rapid diagnostic test to detect peripheral and placental Plasmodium falciparum infection in Papua New Guinean women with anaemia or suspected malaria
A. Umbers, H. Unger, A. Rosanas-Urgell, R. Wangnapi +9 more
2015Malaria Journal37 citations Open access
Semantic Scholar
Determining effects of areca (betel) nut chewing in a prospective cohort of pregnant women in Madang Province, Papua New Guinea
M. Ome-Kaius, H. Unger, Dupain Singirok, R. Wangnapi +6 more
2015BMC Pregnancy and Childbirth33 citations Open access
Semantic Scholar
Microscopic and submicroscopic Plasmodium falciparum infection, maternal anaemia and adverse pregnancy outcomes in Papua New Guinea: a cohort study
H. Unger, A. Rosanas-Urgell, L. Robinson, M. Ome-Kaius +6 more
2019Malaria Journal29 citations Open access
Semantic Scholar
Does Malaria Affect Placental Development? Evidence from In Vitro Models
A. Umbers, D. Stanisic, M. Ome, R. Wangnapi +12 more
2013PLoS ONE29 citations Open access
Semantic Scholar
Mycoplasma genitalium and Other Reproductive Tract Infections in Pregnant Women, Papua New Guinea, 2015–2017
M. Scoullar, Philippe Boeuf, E. Peach, R. Fidelis +21 more
2021Emerging Infectious Diseases28 citations Open access
Semantic Scholar
Plasmodium vivax VIR Proteins Are Targets of Naturally-Acquired Antibody and T Cell Immune Responses to Malaria in Pregnant Women
P. Requena, Edmilson Rui, Norma Padilla, F. Martínez-Espinosa +25 more
2016PLoS Neglected Tropical Diseases26 citations Open access
Semantic Scholar
Risk factors and knowledge associated with high unintended pregnancy rates and low family planning use among pregnant women in Papua New Guinea
E. Peach, C. Morgan, M. Scoullar, F. Fowkes +15 more
2021Scientific Reports22 citations Open access
Semantic Scholar
Insights into maternal mortality in Madang Province, Papua New Guinea
John W Bolnga, Nancy N. Hamura, A. Umbers, S. Rogerson +1 more
2013International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics22 citations
Semantic Scholar
Proinflammatory Responses and Higher IL-10 Production by T Cells Correlate with Protection against Malaria during Pregnancy and Delivery Outcomes
P. Requena, D. Barrios, L. Robinson, Paula Samol +17 more
2015Journal of Immunology21 citations Open access
Semantic Scholar
Evaluating antibody functional activity and strain-specificity of vaccine candidates for malaria in pregnancy using in vitro phagocytosis assays
M. Hommel, J. Chan, A. Umbers, C. Langer +3 more
2018Parasites & Vectors17 citations Open access
Semantic Scholar
Impact of Intermittent Preventive Treatment in Pregnancy with Azithromycin-Containing Regimens on Maternal Nasopharyngeal Carriage and Antibiotic Sensitivity of Streptococcus pneumoniae, Haemophilus influenzae, and Staphylococcus aureus: a Cross-Sectional Survey at Delivery
H. Unger, C. Aho, M. Ome-Kaius, R. Wangnapi +9 more
2015Journal of Clinical Microbiology15 citations Open access
Semantic Scholar
Mycoplasma genitalium in pregnancy, including specific co-infections, is associated with lower birthweight: A prospective cohort study.
M. Scoullar, P. Melepia, E. Peach, R. Fidelis +20 more
2024i Medicina12 citations Open access
Semantic Scholar
Peripheral Blood Mononuclear Cells Derived from Grand Multigravidae Display a Distinct Cytokine Profile in Response to P. falciparum Infected Erythrocytes
Louise E. Ludlow, Wina Hasang, A. Umbers, Emily K. Forbes +6 more
2014PLoS ONE11 citations Open access
Semantic Scholar
Correction: Does Malaria Affect Placental Development? Evidence from In Vitro Models
A. Umbers, D. Stanisic, M. Ome, R. Wangnapi +12 more
2013PLoS ONE9 citations Open access
Semantic Scholar
Chronic malaria exposure is associated with inhibitory markers on T cells that correlate with atypical memory and marginal zone-like B cells.
R. Mitchell, Itziar Ubillos, P. Requena, J. Campo +12 more
2024Clinical and Experimental Immunology8 citations
Semantic Scholar
IFPA Meeting 2012 Workshop Report II: Epigenetics and imprinting in the placenta, growth factors and villous trophoblast differentiation, role of the placenta in regulating fetal exposure to xenobiotics during pregnancy, infection and the placenta
M. S. Ahmed, L. Aleksunes, P. Boeuf, M. Chung +24 more
2012Placenta8 citations Open access
Semantic Scholar
A case of ultrasound-guided prenatal diagnosis of prune belly syndrome in Papua New Guinea – implications for management
M. Ome, R. Wangnapi, Nancy N. Hamura, A. Umbers +5 more
2013BMC Pediatrics5 citations Open access
Semantic Scholar
Pathogenesis of Malarial Parasites in Humans
C. L. Chua, R. Ataíde, A. Umbers, Philippe Boeuf
20153 citations
Semantic Scholar
High burden of Mycoplasma genitalium and other reproductive tract infections among pregnant women in Papua New Guinea
M. Scoullar, Philippe Boeuf, E. Peach, R. Fidelis +21 more
2020bioRxiv2 citations Open access
Semantic Scholar
Loss of Betaglycan Disrupts Somatic Cell Differentiation and Germ Cell Entry into Meiosis in the Fetal Mouse Ovary.
M. A. Sarraj, R. Escalona, A. Umbers, J. Findlay +1 more
20102 citations
Semantic Scholar
Innate immune responses to malaria-infected erythrocytes in pregnant women: Effects of gravidity, malaria infection, and geographic location
M. Jabbarzare, Madi Njie, A. Jaworowski, A. Umbers +5 more
2020PLoS ONE1 citations Open access
Semantic Scholar
O16.1 High burden of reproductive tract infections and poor sexual and reproductive health in pregnancy and postpartum in Papua New Guinea
M. Scoullar, P. Boeuf, E. Peach, E. Kearney +23 more
2021Female reproductive health for STIs and HIV0 citations Open access
Semantic Scholar
and Delivery Outcomes Protection against Malaria during Pregnancy IL-10 Production by T Cells Correlate with Proinflammatory Responses and Higher
P. Requena, D. Barrios, L. Robinson, Paula Samol +17 more
20150 citations
Semantic Scholar
and in Plasma Eotaxin Levels Associated with Changes in the B Cell Pool Pregnancy and Malaria Exposure Are
A. Bardají, I. Mueller, S. Rogerson, C. Chitnis +10 more
20140 citations
Semantic Scholar
DO MALARIA PARASITES BIND TO THE PLACENTA EARLY IN PREGNANCY? EVIDENCE FROM A RELEVANT PLACENTAL ADHESION ASSAY
A. Umbers, S. Hanieh, M. Ome, Regina Wagnapi +6 more
20120 citations
Semantic Scholar
168. TGFβ 2-BETAGLYCAN REGULATE FOETAL TESTIS DEVELOPMENT IN VITRO
M. A. Sarraj, A. Umbers, J. Findlay, K. Stenvers
20100 citations
Semantic Scholar
Placental pathogenesis of fetal growth restriction during Plasmodium falciparum infection in human pregnancy
A. Umbers
20100 citations
Semantic Scholar
513. LOSS OF BETAGLYCAN DISRUPTS SOMATIC CELL DIFFERENTIATION IN THE FETAL MOUSE OVARY
M. A. Sarraj, R. Escalona, A. Umbers, J. Findlay +1 more
20090 citations
Semantic Scholar
209. The absence of betaglycan affects Sox9 m RNA expression at the time of sex determination in a mouse model
M. A. Sarraj, H. Chua, A. Umbers, R. Escalona +3 more
20080 citations
Semantic Scholar
Betaglycan is required for normal leydig cell development in mouse
M. A. Sarraj, J. McCarrey, H. Chua, A. Umbers +4 more
20080 citations
Semantic Scholar
The murine betaglycan gene is essential for normal seminiferous cord formation
K. Angaard, K. Stenvers, M. A. Sarraj, A. Umbers +3 more
20070 citations
Semantic Scholar
Differential expression of the betaglycan gene in ovary and testis during gonadogenesis in the mouse
S. Roy, K. Stenvers, M. A. Sarraj, A. Umbers +2 more
20060 citations
Semantic Scholar

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