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How to Get Data and/or Biological Samples

HOW TO COLLABORATE? Applicants with research interests relevant to CoLab (complications of pregnancy) may apply to collaborate with CoLab. Please note that to obtain samples and/or data from CoLab cohorts, you will need a member of CoLab to be your sponsor. We can help assist you in getting a sponsor. All CoLab projects are considered collaborations and you will work directly with CoLab members and cohorts to obtain data and/or biological samples for your project. However, you will work directly with the CoLab office thorough the application process, to give quarterly updates, and to work with a protocol committee regarding your project.

Strategy for Standardization of Preeclampsia Research Study Design

Strategy for Standardization of Preeclampsia Research Study Design

Optimising Sample Collection for Placental Research

Biobanks provide an important repository of samples for research purposes. However, for those samples to reflect the in vivo state, and for experimental reliability and reproducibility, careful attention to collection, processing and storage is essential. 

Contraceptive use before first pregnancy by women in India (2005–2006): determinants and differentials

This study attempts to identify the socio demographic determinants and differentials of contraceptive use or non use by a woman in India, before she proceeds to have her first child. The analysis was done using data from the third National Family Health Survey (2005–2006), India.

The Early Childhood Obesity Prevention Program (ECHO): an ecologically-based intervention delivered by home visitors for newborns and their mothers

The goals of the Early Childhood Obesity Prevention Program (ECHO) are to examine the 12-month efficacy of a primary obesity prevention program targeting the first year of life that is delivered by home visitors and that engages mothers as agents of change to modify their own behavior and their infant’s behavior through education and skill-building around nutrition, physical activity, and wellness, and then “echoes” her training with linkages to neighborhood programs and resources. ECHO will provide important information about whether an enhanced behavior change curriculum integrated into an existing home visitation program, focused on the mother as the agent of change and linked to neighborhood resources is effective in changing energy balance behaviors in the infant and in the mother. If effective, the intervention could be widely disseminated to prevent obesity in young children.        

Does the type of abortion provider influence contraceptive uptake after abortion? An analysis of longitudinal data from 64 health facilities in Ghana

The objectives of this study were to estimate the relationship between the type of abortion provider (consultant physician, house officer, or midwife) and two separate outcomes: (1) the likelihood of adopting postabortion contraception; (2) postabortion contraceptors’ likelihood of receiving a long-acting and permanent versus a short-acting contraceptive method.        

Mechanisms of clonal evolution in childhood acute lymphoblastic leukemia

Childhood acute lymphoblastic leukemia (ALL) can often be traced to a pre-leukemic clone carrying a prenatal genetic lesion. Postnatally acquired mutations then drive clonal evolution toward overt leukemia. The enzymes RAG1-RAG2 and AID, which diversify immunoglobulin-encoding genes, are strictly segregated in developing cells during B lymphopoiesis and peripheral mature B cells, respectively. Here we identified small pre-BII cells as a natural subset with increased genetic vulnerability owing to concurrent activation of these enzymes. Consistent with epidemiological findings on childhood ALL etiology, susceptibility to genetic lesions during B lymphopoiesis at the transition from the large pre-BII cell stage to the small pre-BII cell stage was exacerbated by abnormal cytokine signaling and repetitive inflammatory stimuli. We demonstrated that AID and RAG1-RAG2 drove leukemic clonal evolution with repeated exposure to inflammatory stimuli, paralleling chronic infections in childhood.      

Fetal Growth and Risk of Stillbirth: A Population-Based Case–Control Study

Stillbirth is strongly related to impaired fetal growth. However, the relationship between fetal growth and stillbirth is difficult to determine because of uncertainty in the timing of death and confounding characteristics affecting normal fetal growth. The study authors conducted a population-based case–control study of all stillbirths and a representative sample of live births in 59 hospitals in five geographic areas in the US. The study found that stillbirth is associated with both growth restriction and excessive fetal growth. These findings suggest that, contrary to current practices and recommendations, stillbirth prevention strategies should focus on both severe SGA and severe LGA pregnancies.

Scale-up plan for essential medicines for child health: Diarrhea, Pneumonia and Malaria in Pakistan

With an under-five mortality rate of 89 per 1000 live births, Pakistan is lagging behind the desired MDG 4. There is still a need to reduce the under-five mortality rate by 45 percentage points in order to achieve the MDG target by 2015. Each year around 91,000 and 53,300 children die from pneumonia and diarrhea respectively, in Pakistan. Diarrhea, pneumonia and malaria collectively contribute to around 50% of deaths in children. These three diseases, thus, represent a challenging but surmountable obstacle towards achieving the MDG 4 target. Implementation of large-scale interventions and scale-up plan focusing on these three major killers of children in Pakistan is essential. This report identifies the major barriers towards accessing essential medicines by care givers.

The Effect of Intermittent Antenatal Iron Supplementation on Maternal and Infant Outcomes in Rural Viet Nam: A Cluster Randomised Trial

Anemia affects over 500 million women, and in pregnancy is associated with impaired maternal and infant outcomes. Intermittent antenatal iron supplementation is an attractive alternative to daily dosing; however, the impact of this strategy on infant outcomes remains unclear. This study compared the effect of intermittent antenatal iron supplementation with daily iron supplementation on maternal and infant outcomes in rural Viet Nam.