Medical Student Research Fellowship for Summer 2009
Mentor: Jane G. Wigginton, MD
Department: Surgery; Dallas/Fort Worth Center for Resuscitation Research, Division
of Resuscitative Endocrinology
Room Number: E7.202, Lab: G8.212
Mail Code: 9031
Phone Number: 8-9491
E-mail: Jane.Wigginton@UTSouthwestern.edu
Project Title: Utilization of Sex Steroids As Acute Resuscitation Drugs in Severe
Traumatic Injuries
Human Subjects IRB approved project number (where applicable):
Animal Subjects IRB approved project number (where applicable):
Project Type (patient-based research, animal-based research, or basic research;
this characterization is only to permit a general classification for grouping
similar types of projects): Patient-based research, animal-based research, and
bench research.
Brief Description of Projects:
Human:
1. NIFTI-TBI (Non-Interventional F-Two Isoprostane- Traumatic Brain Injury)
Trial:
A significant cause of mortality and persistent morbidity in TBI is due to potentially
preventable secondary injury, namely oxidant injury, inflammation, and apoptosis
in the penumbra (the part of the brain that is at risk after the initial injury,
but potentially salvageable), occurring in the first few hours after the severe
traumatic event. This study will serially examine the levels of specific biomarkers
present in both Cerebrospinal Fluid (CSF) and blood, the results of which should
provide the following firsts: (1) Elucidate the peak timing of early oxidant
injury, which will directly impact the timing of interventions for these patients
(2) Identity the amount of oxidant injury seen in the different types of TBI,
which may guide the specific therapies used for these patients (3) Identify
any subsequent peaks in oxidant injury, which, if identified, will lead to further
improvements in patient care (4) Identify any correlations between CSF and serum
levels of F2-isoprostane, which may help guide therapy for less severely TBI
patients not requiring a ventriculostomy (5) Identify correlations of marker
levels with patients' progress, and need for critical interventions, which may
alert physicians to problems requiring intervention before they would be otherwise
clinically evident.
2. RESCUE - TBI and Shock (Resuscitative Endocrinology: Single-dose Clinical
Uses for Estrogen - Traumatic Brain Injury and Hemorrhagic Shock)Trials
Epidemiologic studies have shown women often survive traumatic injury, sudden
cardiac arrest, hemorrhage and sepsis better than men. Numerous recent animal
studies investigating the effects of sex steroids on both sexes of injured animals
have overwhelmingly found estrogen to be effective at mitigating the devastating
secondary injury brought about by oxidant injury, inflammation and apoptosis
with up to a 65% reduction in ultimate injury for multiple different injury
types. Based on these important observations, the RESCUE - TBI & Shock Trials
are the first clinical studies to ever translate these animal studies to patients,
by utilizing a single dose of IV estrogen as an acute resuscitation drug. It
is hoped that patients with severe TBI and Hemorrhagic Shock will have a new,
safe, effective therapy in the near future, based on the results of these pilot
trials.
Animal:
1. RESCUE - Rats Burns (Resuscitative Endocrinology: Single-dose Clinical Uses
for Estrogen - Burns)
2. RESCUE - Rats TBI (Resuscitative Endocrinology: Single-dose Clinical Uses
for Estrogen - TBI)
The goals for the student will be to:
1. Develop an improved global understanding of human and animal research
2. Learn techniques involving human specimen handling, through assistance in
bedside specimen procurement in the ER and ICU, and specimen processing for
future analysis
3. If desired, students will assist with all aspects of small animal injury
and resuscitation models as indicated above. (Animal work is NOT required)
4. Perform basic laboratory tests, ex. ELISAs, following appropriate training
5. Experience direct patient and family member contact in a critical care setting
with research team members, which will afford them the opportunity to develop
important clinical skills under the research team's guidance.
6. Participate in the screening, enrolling and consenting of patients under
the research team's guidance.
7. Follow patients over time, noting changes in study outcomes, alongside our
staff research coordinators
8. Participate in chart review of study patients (including collection of data,
verification of diagnoses, and simple entry and analysis of data)
9. Develop skills in the areas of writing abstracts and journal articles.
It is anticipated that students will achieve one or more abstracts and/or publications
as a result of their work.
Sample of Previous Published Work with Students:
1) Lingo Lai - Non - Interventional F2-isoprostane Study - Traumatic Brain Injury
(NIFTI - TBI) : Isofurans (IsoF) and F2-isoprostane (F2-IsoP) as Markers of
Oxidant Injury. Abstract and Poster Winner Medical Student Research forum UTSWMC
2007
2) Anh Nguyen - Sex Steroid Level Alterations in the Blood and CSF Following
Severe Traumatic Brain Injury Winner, Presenter at the Medical Student Research
Forum 2007 UTSWMC