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Gut microbiome and response to oral typhoid vaccine

We are studying the role of gut microbiome diversity on the mucosal and systemic responses to Ty21a vaccine. This is to determine if a given microbiota composition is associated with specific immune responses and to evaluate the impact of an oral typhoid vaccination on the human gut microbiota.

HBCD (HEALthy Brain and Child Development)

To understand how environmental factors affect a child's early brain development. This includes positive factors like social support and parent-child bonding and challenges like poverty, stress and early life exposures.

Healthy Development

Determine how potentially stressful situations, including prematurity, hospitalizations, maternal mental health and rapid repeat births can impact a baby’s development in the first 12 months of their life.


1) To determine if 5 doses of Epo (Erythropoietin) 1000 U/kg (birth weight) intravenous (IV) reduces the rate of death or neurodevelopmental impairment (mild, moderate, or severe) at 24 months of age. 

2) To assess safety of Epo. 

3) To determine whether Epo decreases the severity of HIE-induced brain injury as evidenced by early MRI and plasma biomarkers of brain injury.

Hybrid Closed Loop (HYCLO)

To evaluate how the Medtronic 670G closed loop system impacts clinical and patient-reported outcomes in individuals with type 1 diabetes.

Hydroxychloroquine (HCQ) Prevention (TN22)

Hydroxychloroquine is given as an investigational drug to relatives of someone with type 1 diabetes who have positive diabetes antibodies in an attempt to prevent or delay the onset of type 1 diabetes. See website for more details

Impact of the Pandemic on Families

The purpose of this study is to understand the impact of the COVID-19 pandemic on vulnerable families in Los Angeles, including those caring for a child with special health care needs. Information from this research will be used to understand what the key resource and service needs of families are at this time as well as identify interventions that can be developed or adapted to address these needs.