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Determination Of Thymic Epithelial Cell Composition And Proliferation During The Perinatal To Adult Transition, Scott Casey Dec 2019

Determination Of Thymic Epithelial Cell Composition And Proliferation During The Perinatal To Adult Transition, Scott Casey

Dissertations and Theses (Open Access)

T-cells develop in the thymus based on signaling from multiple stromal cell types, particularly thymic epithelial cells (TECs). The thymus develops rapidly during the perinatal time period (birth – 10 days in mice) before reaching a period of homeostasis (10 days – 6 weeks). The mechanisms that initially promote and subsequently limit expansion of the TEC compartment are not known. However, previous reports from our lab suggest that the Cyclin D1-RB-E2F pathway plays a key role in regulating the perinatal to adult transition. We have previously shown that inactivation in TEC of retinoblastoma (RB) family members through deletion of RB …


Identification And Molecular Analysis Of Dna In Exosomes, Jena Tavormina Dec 2019

Identification And Molecular Analysis Of Dna In Exosomes, Jena Tavormina

Dissertations and Theses (Open Access)

Exosomes are heterogeneous nanoparticles 50-150nm in diameter. Exosomes contain many functional cargo components, such as protein, DNA, and RNA. While protein and RNA exosome content has been extensively studied, very little work has been done to characterize exosomal DNA. Here, we demonstrate that exosomal DNA is heterogeneous and its packaging into exosomes is dependent on the cell of origin. Furthermore, through a rigorous assessment of various isolation methods, we identify Size Exclusion Chromatography (SEC) as the best method for the isolation of exosomal DNA for downstream applications. Additionally, we evaluate the methylation status of exosomal DNA and demonstrate that exosomal …


A Signature Enrichment Design With Bayesian Adaptive Randomization For Cancer Clinical Trials, Fang Xia Dec 2019

A Signature Enrichment Design With Bayesian Adaptive Randomization For Cancer Clinical Trials, Fang Xia

Dissertations and Theses (Open Access)

Clinical trials in the era of precision medicine demand more flexible and efficient trial designs. Adaptive clinical trial designs allow pre-specified modifications of an on-going clinical trial and could shorten the trial duration. We reviewed five common types of adaptive clinical trials based on adaptation methods. In particular, outcome-randomization becomes more popular as it can assign more patients to the promising treatments based on the accumulated trial data. This data-driven allocation allows more patients to benefit from the trial, which is especially important for cancer patients. We compared different Bayesian outcome-adaptive randomization methods and discussed them from both methodological and …


Assessment Of New Innovations In Pet/Ct For Respiratory Motion Correction, Joseph Meier Dec 2019

Assessment Of New Innovations In Pet/Ct For Respiratory Motion Correction, Joseph Meier

Dissertations and Theses (Open Access)

In oncological imaging, Positron Emission Tomography/Computed Tomography (PET/CT) is a vital tool used for stating and treatment response assessment of patients due to its ability to visualize and accurately quantify the bio-distribution of radiolabeled pharmaceuticals. However, due to the long acquisition times, respiratory motion blur is unavoidable in PET images especially in the lower lung and upper abdomen. This leads to reductions in measured radiotracer concentration and lesion detectability all of which can potentially result in incorrect management of patients. Multiple methods exist to correct for respiratory motion but are rarely used in the routine clinical setting because of: 1) …


Deconvolute Brain Tumor Genomic Alterations Based On Dna Methylation, Jie Yang Dec 2019

Deconvolute Brain Tumor Genomic Alterations Based On Dna Methylation, Jie Yang

Dissertations and Theses (Open Access)

Molecular classification based on mutations, expression subtypes, and copy number variants has improved diagnosis and treatment decision-making for patients with brain tumors, particularly malignant gliomas. However, the association between epigenetic signature and genetic alterations is poorly understood. For example, mutation of isocitrate dehydrogenase (IDH) is associated with genome-wide hypermethylation of CpG islands in gliomas. But other subtype-associated alterations, including telomerase reverse transcriptase (TERT) promoter mutation, alpha thalassemia/mental retardation syndrome X-linked (ATRX) mutation, chromosome 1p19q co-deletion (chr1p19q codel), and gene expression subtypes, have yet to be associated with any epigenetic signature. Therefore, we hypothesized that …


Relevance Of Fgfr1 And Its Isoforms In Prostate Cancer Bone Metastases, Estefania Labanca Dec 2019

Relevance Of Fgfr1 And Its Isoforms In Prostate Cancer Bone Metastases, Estefania Labanca

Dissertations and Theses (Open Access)

The fibroblast growth factor receptor (FGFR) 1 is implicated in prostate cancer (PCa) progression. Various FGFR1 isoforms have been described and we demonstrate here that the well-characterized FGFR1 a and b isoforms are correlated with the expression of different genes and pathways in human PCa. Direct injection of PC3 PCa cells overexpressing FGFR1 isoforms into the femur of mice resulted in enhanced tumor growth and reduction in bone volume when compared with PC3 expressing empty vector. However, only PC3 overexpressing FGFR1 b was associated with increased osteoclast parameters, suggesting that each isoform may mediate diverse biological effects (similar findings were …


Structural Basis Of Amino Acid Surveillance By Higher-Order Trna-Mrna Interactions, Shuang Li, Zhaoming Su, Jean Lehmann, Vassiliki Stamatopoulou, Nikoleta Giarimoglou, Frances E Henderson, Lixin Fan, Grigore D Pintilie, Kaiming Zhang, Muyuan Chen, Steven J Ludtke, Yun-Xing Wang, Constantinos Stathopoulos, Wah Chiu, Jinwei Zhang Dec 2019

Structural Basis Of Amino Acid Surveillance By Higher-Order Trna-Mrna Interactions, Shuang Li, Zhaoming Su, Jean Lehmann, Vassiliki Stamatopoulou, Nikoleta Giarimoglou, Frances E Henderson, Lixin Fan, Grigore D Pintilie, Kaiming Zhang, Muyuan Chen, Steven J Ludtke, Yun-Xing Wang, Constantinos Stathopoulos, Wah Chiu, Jinwei Zhang

Faculty, Staff and Students Publications

Amino acid availability in Gram-positive bacteria is monitored by T-box riboswitches. T-boxes directly bind tRNAs, assess their aminoacylation state, and regulate the transcription or translation of downstream genes to maintain nutritional homeostasis. Here, we report cocrystal and cryo-EM structures of Geobacillus kaustophilus and Bacillus subtilis T-box-tRNA complexes, detailing their multivalent, exquisitely selective interactions. The T-box forms a U-shaped molecular vise that clamps the tRNA, captures its 3' end using an elaborate 'discriminator' structure, and interrogates its aminoacylation state using a steric filter fashioned from a wobble base pair. In the absence of aminoacylation, T-boxes clutch tRNAs and form a continuously …


Bipolar Fresh Osteochondral Allograft Transplantation And Joint Reconstruction For Patellar And Trochlear Cartilage Defects, Omid Jalali, Zachary Vredenburgh, John Prodromo, Neilen Benvegnu, George Frederick Rick Hatch Dec 2019

Bipolar Fresh Osteochondral Allograft Transplantation And Joint Reconstruction For Patellar And Trochlear Cartilage Defects, Omid Jalali, Zachary Vredenburgh, John Prodromo, Neilen Benvegnu, George Frederick Rick Hatch

Faculty, Staff and Students Publications

Patellar instability is a debilitating condition, and trauma due to the dislocations may severely damage the articular cartilage of the patellofemoral joint. The lack of healing capacity of cartilage makes treatment of such lesions challenging. In young patients, preservation of native bone and cartilage is a priority, and therefore arthroplasty procedures should be avoided even in relatively larger lesions. Fresh osteochondral allografting has been described for these difficult and complex cases, with recent studies showing promising results. In this surgical technique, we describe the use of bipolar osteochondral allografts of the patella and trochlea and patellofemoral joint reconstruction for large …


Gna11 Brain Somatic Pathogenic Variant In An Individual With Phacomatosis Pigmentovascularis, Joseph M Sliepka, Sarah C Mcgriff, Linda Z Rossetti, Peyman Bizargity, Haley Streff, Yi-Shan Lee, Hongzheng Dai, Satyamaanasa Polubothu, Grace Lee, Vicky Ren, Jill V Hunter, Daniel J Curry, Fernando Scaglia, Adekunle M Adesina, Irfan Ali, Veronica Kinsler, Lindsay C Burrage, Dana Marafi Dec 2019

Gna11 Brain Somatic Pathogenic Variant In An Individual With Phacomatosis Pigmentovascularis, Joseph M Sliepka, Sarah C Mcgriff, Linda Z Rossetti, Peyman Bizargity, Haley Streff, Yi-Shan Lee, Hongzheng Dai, Satyamaanasa Polubothu, Grace Lee, Vicky Ren, Jill V Hunter, Daniel J Curry, Fernando Scaglia, Adekunle M Adesina, Irfan Ali, Veronica Kinsler, Lindsay C Burrage, Dana Marafi

Faculty, Staff and Students Publications

OBJECTIVE: To describe the findings of histopathology and genotyping studies in affected brain tissue from an individual with phacomatosis pigmentovascularis (PPV).

METHODS: A retrospective chart review of a 2-year 10-month-old male with a clinical diagnosis of PPV cesiomarmorata (or type V) was performed. Clinical features, brain imaging and histopathology findings, and genotyping studies in his affected brain tissue are summarized.

RESULTS: The proband had a clinically severe neurologic phenotype characterized by global developmental delay, generalized hypotonia, and recurrent episodes of cardiac asystole in the setting of status epilepticus. A somatic pathogenic variant in

CONCLUSIONS: The finding of this variant in …


Results Of A Phase 1 Multicentre Investigation Of Dexmedetomidine Bolus And Infusion In Corrective Infant Cardiac Surgery, Athena F Zuppa, Susan C Nicolson, Nicole S Wilder, Juan C Ibla, Erin A Gottlieb, Kristin M Burns, Mario Stylianou, Felicia Trachtenberg, Hua Ni, Tera H Skeen, Dean B Andropoulos Dec 2019

Results Of A Phase 1 Multicentre Investigation Of Dexmedetomidine Bolus And Infusion In Corrective Infant Cardiac Surgery, Athena F Zuppa, Susan C Nicolson, Nicole S Wilder, Juan C Ibla, Erin A Gottlieb, Kristin M Burns, Mario Stylianou, Felicia Trachtenberg, Hua Ni, Tera H Skeen, Dean B Andropoulos

Faculty, Staff and Students Publications

BACKGROUND: Dexmedetomidine (DEX) is increasingly used intraoperatively in infants undergoing cardiac surgery. This phase 1 multicentre study sought to: (i) determine the safety of DEX for cardiac surgery with cardiopulmonary bypass; (ii) determine the pharmacokinetics (PK) of DEX; (iii) create a PK model and dosing for steady-state DEX plasma levels; and (iv) validate the PK model and dosing.

METHODS: We included 122 neonates and infants (0-180 days) with D-transposition of the great arteries, ventricular septal defect, or tetralogy of Fallot. Dose escalation was used to generate NONMEM® PK modelling, and then validation was performed to achieve low (200-300 pg ml …


Defining The Layers Of A Sensory Cilium With Storm And Cryoelectron Nanoscopy, Michael A Robichaux, Valencia L Potter, Zhixian Zhang, Feng He, Jun Liu, Michael F Schmid, Theodore G Wensel Nov 2019

Defining The Layers Of A Sensory Cilium With Storm And Cryoelectron Nanoscopy, Michael A Robichaux, Valencia L Potter, Zhixian Zhang, Feng He, Jun Liu, Michael F Schmid, Theodore G Wensel

Faculty, Staff and Students Publications

Primary cilia carry out numerous signaling and sensory functions, and defects in them, "ciliopathies," cause a range of symptoms, including blindness. Understanding of their nanometer-scale ciliary substructures and their disruptions in ciliopathies has been hindered by limitations of conventional microscopic techniques. We have combined cryoelectron tomography, enhanced by subtomogram averaging, with superresolution stochastic optical reconstruction microscopy (STORM) to define subdomains within the light-sensing rod sensory cilium of mouse retinas and reveal previously unknown substructures formed by resident proteins. Domains are demarcated by structural features such as the axoneme and its connections to the ciliary membrane, and are correlated with molecular …


Mitochondrial Somatic Mutations And The Lack Of Viral Genomic Variation In Recurrent Respiratory Papillomatosis, Yuhan Hao, Ryan Ruiz, Liying Yang, Antonio Galvao Neto, Milan R Amin, Dervla Kelly, Stratos Achlatis, Scott Roof, Renjie Bing, Kasthuri Kannan, Stuart M Brown, Zhiheng Pei, Ryan C Branski Nov 2019

Mitochondrial Somatic Mutations And The Lack Of Viral Genomic Variation In Recurrent Respiratory Papillomatosis, Yuhan Hao, Ryan Ruiz, Liying Yang, Antonio Galvao Neto, Milan R Amin, Dervla Kelly, Stratos Achlatis, Scott Roof, Renjie Bing, Kasthuri Kannan, Stuart M Brown, Zhiheng Pei, Ryan C Branski

Faculty, Staff and Student Publications

Recurrent Respiratory Papillomatosis (RRP) is a rare disease of the aerodigestive tract caused by the Human Papilloma Virus (HPV) that manifests as profoundly altered phonatory and upper respiratory anatomy. Current therapies are primarily symptomatic; enhanced insight regarding disease-specific biology of RRP is critical to improved therapeutics for this challenging population. Multiplex PCR was performed on oral rinses collected from twenty-three patients with adult-onset RRP every three months for one year. Twenty-two (95.6%) subjects had an initial HPV positive oral rinse. Of those subjects, 77.2% had an additional positive oral rinse over 12 months. A subset of rinses were then compared …


N-Of-1 Trials As A Decision Support Tool In Clinical Practice: A Protocol For A Systematic Literature Review And Narrative Synthesis, Joyce Samuel, Travis Holder, Donald Molony Nov 2019

N-Of-1 Trials As A Decision Support Tool In Clinical Practice: A Protocol For A Systematic Literature Review And Narrative Synthesis, Joyce Samuel, Travis Holder, Donald Molony

Library Staff Publications

The n-of-1 trial can utilized in clinical practice as a decision support tool, which may improve patient outcomes by providing both the patient and the clinician with objective evidence to inform personalized treatment decisions. As its use broadens, it will be important to study whether the added time and effort of an n-of-1 trial results in measurable improvements in important patient outcomes compared to usual clinical practice. Parallel-group randomized clinical trials testing the n-of-1 approach versus usual care have been undertaken in a number of medical settings. A systematic review will be performed according to PRISMA guidelines, using MEDLINE, Embase, …


Enhancing Clinical Concept Extraction With Contextual Embeddings, Yuqi Si, Jingqi Wang, Hua Xu, Kirk Roberts Nov 2019

Enhancing Clinical Concept Extraction With Contextual Embeddings, Yuqi Si, Jingqi Wang, Hua Xu, Kirk Roberts

Faculty, Staff and Student Publications

OBJECTIVE: Neural network-based representations ("embeddings") have dramatically advanced natural language processing (NLP) tasks, including clinical NLP tasks such as concept extraction. Recently, however, more advanced embedding methods and representations (eg, ELMo, BERT) have further pushed the state of the art in NLP, yet there are no common best practices for how to integrate these representations into clinical tasks. The purpose of this study, then, is to explore the space of possible options in utilizing these new models for clinical concept extraction, including comparing these to traditional word embedding methods (word2vec, GloVe, fastText).

MATERIALS AND METHODS: Both off-the-shelf, open-domain embeddings and …


Exposures At Day Labor Corners: Using Existing Georeferenced Data To Describe Features Of Urban Environments, Maria Eugenia Fernández-Esquer, Amy E Hughes, Sandi L Pruitt Nov 2019

Exposures At Day Labor Corners: Using Existing Georeferenced Data To Describe Features Of Urban Environments, Maria Eugenia Fernández-Esquer, Amy E Hughes, Sandi L Pruitt

Faculty, Staff and Student Publications

PURPOSE: Latino day laborers are male immigrants from mainly Mexico and Central America who congregate at corners, that is, informal hiring sites, to solicit short-term employment. Studies describing the occupational environment of Latino day laborers traditionally measure jobsite exposures, not corner exposures. We sought to elucidate exposures at corners by describing their demographic, socioeconomic, occupational, business, built, and physical environmental characteristics and by comparing corner characteristics with other locations in a large urban county in Texas.

METHODS: We used multiple publicly available data sets from the U.S. Census, local tax authority, Google's Nearby Places Application Programming Interface, and Environmental Protection …


The Nonsteroidal Anti-Inflammatory Drug Indomethacin Induces Heterogeneity In Lipid Membranes: Potential Implication For Its Diverse Biological Action, Mihnea P Dragomir, Stefan Tudor, Keishi Okubo, Masayoshi Shimizu, Meng Chen, Dana Elena Giza, William Ruixian He, Cristina Ivan, George A Calin, Catalin Vasilescu Nov 2019

The Nonsteroidal Anti-Inflammatory Drug Indomethacin Induces Heterogeneity In Lipid Membranes: Potential Implication For Its Diverse Biological Action, Mihnea P Dragomir, Stefan Tudor, Keishi Okubo, Masayoshi Shimizu, Meng Chen, Dana Elena Giza, William Ruixian He, Cristina Ivan, George A Calin, Catalin Vasilescu

Faculty, Staff and Student Publications

Splenectomy is a common surgical procedure performed in millions of people worldwide. Epidemiologic data show that splenectomy is followed by infectious (sepsis) and non-infectious complications, with unknown mechanisms. In order to explore the role of the non-coding transcripts involved in these complications, we analysed a panel of circulating microRNAs (miRNAs), which were previously reported to be deregulated in sepsis, in the plasma of splenectomized patients. MiR-223 was overexpressed immediately and late after splenectomy, while miR-146a was overexpressed immediately after splenectomy, returning latter to basal levels; and miR-16, miR-93, miR-26a and miR-26b were overexpressed only late after splenectomy, suggesting similarities with …


Integrating Primary Care Into Community Mental Health Centres In Texas, Usa: Results Of A Case Study Investigation, Rebecca Wells, Ellen D Breckenridge, Sasha Ajaz, Aman Narayan, Daniel Brossart, James H Zahniser, Jolene Rasmussen Oct 2019

Integrating Primary Care Into Community Mental Health Centres In Texas, Usa: Results Of A Case Study Investigation, Rebecca Wells, Ellen D Breckenridge, Sasha Ajaz, Aman Narayan, Daniel Brossart, James H Zahniser, Jolene Rasmussen

Faculty, Staff and Student Publications

INTRODUCTION: Despite evidence that people with serious mental illness benefit from receiving primary care within mental health care settings, there is little research on this type of integration. The objective of this study was to characterize how providers and patients experienced implementation of primary care into specialty mental health services.

METHODS: During site visits, study team members interviewed staff and conducted focus groups with patients at 10 United States community mental health centres then beginning to integrate primary into their practices. One year later, follow up phone interviews with key centre staff informants validated and updated findings. Data analysis included …


Safety Climate, Safety Climate Strength, And Length Of Stay In The Nicu, Daniel S Tawfik, Eric J Thomas, Timothy J Vogus, Jessica B Liu, Paul J Sharek, Courtney C Nisbet, Henry C Lee, J Bryan Sexton, Jochen Profit Oct 2019

Safety Climate, Safety Climate Strength, And Length Of Stay In The Nicu, Daniel S Tawfik, Eric J Thomas, Timothy J Vogus, Jessica B Liu, Paul J Sharek, Courtney C Nisbet, Henry C Lee, J Bryan Sexton, Jochen Profit

Faculty, Staff and Student Publications

BACKGROUND: Safety climate is an important marker of patient safety attitudes within health care units, but the significance of intra-unit variation of safety climate perceptions (safety climate strength) is poorly understood. This study sought to examine the standard safety climate measure (percent positive response (PPR)) and safety climate strength in relation to length of stay (LOS) of very low birth weight (VLBW) infants within California neonatal intensive care units (NICUs).

METHODS: Observational study of safety climate from 2073 health care providers in 44 NICUs. Consistent perceptions among a NICU's respondents, i.e., safety climate strength, was determined via intra-unit standard deviation …


Preliminary Development Of A Questionnaire Measuring Patient Views Of Participation In Clinical Trials, Judith Arnetz, Sukhesh Sudan, Courtney Goetz, Bengt Arnetz, Laura Gowland, Suzanne Manji, Samiran Ghosh Oct 2019

Preliminary Development Of A Questionnaire Measuring Patient Views Of Participation In Clinical Trials, Judith Arnetz, Sukhesh Sudan, Courtney Goetz, Bengt Arnetz, Laura Gowland, Suzanne Manji, Samiran Ghosh

Faculty, Staff and Student Publications

OBJECTIVE: This study aimed to develop a questionnaire for measuring patient perceptions of participating in clinical trials. Development was based on earlier research on patient views of involvement in medical care and a literature review. Patients were recruited from an ongoing clinical trial focused on cardiovascular illness and from an outpatient psychiatry department. Factor analysis was conducted on a pilot version of the questionnaire in 2016 and on a revised version in 2017.

RESULTS: A total of 53 patients were recruited for the pilot study and 55 were recruited for the main study, substantially below the goal of 100 participants. …


Tinnitus And Self-Perceived Hearing Handicap In Firefighters: A Cross-Sectional Study, Samson Jamesdaniel, Kareem G Elhage, Rita Rosati, Samiran Ghosh, Bengt Arnetz, James Blessman Oct 2019

Tinnitus And Self-Perceived Hearing Handicap In Firefighters: A Cross-Sectional Study, Samson Jamesdaniel, Kareem G Elhage, Rita Rosati, Samiran Ghosh, Bengt Arnetz, James Blessman

Faculty, Staff and Student Publications

Firefighters are susceptible to auditory dysfunction due to long-term exposure to noise from sirens, air horns, equipment, and tools used in forcible entry, ventilation, and extrication. In addition, they are exposed to ototoxic chemicals, particularly, during overhaul operations. Studies indicate that 40% of firefighters have hearing loss in the noise-sensitive frequencies of 4 and 6 kHz. Noise-induced hearing loss (NIHL) is often accompanied by tinnitus, which is characterized by ringing noise in the ears. The presence of phantom sounds can adversely affect the performance of firefighters. However, there has been limited research conducted on the prevalence of tinnitus in firefighters. …


Pathways To Economic Outcomes And The Impact Of Health: Comparing Hispanic And Non-Hispanic Adults After Foster Care, Susy Villegas Ph.D., Lcsw, Mónica M. Alzate Ph.D., Lcsw, James A. Rosenthal Ph.D., Kirk O'Brien Ph.D, Peter J. Pecora Ph.D. Oct 2019

Pathways To Economic Outcomes And The Impact Of Health: Comparing Hispanic And Non-Hispanic Adults After Foster Care, Susy Villegas Ph.D., Lcsw, Mónica M. Alzate Ph.D., Lcsw, James A. Rosenthal Ph.D., Kirk O'Brien Ph.D, Peter J. Pecora Ph.D.

Journal of Applied Research on Children: Informing Policy for Children at Risk

Abstract

This study examines the financial outcomes in adulthood of Hispanics (N = 87) and White (Non-Hispanic, N = 498) persons placed in foster care during childhood. It uses the Casey Family Programs National Alumni Study (CFPNAS) database. Path models including predictors such as gender, education, having a partner, preparation for leaving care, and problem characteristics yielded predominantly similar effects for Hispanic and White Non-Hispanic respondents. The direct effect of physical and mental health conditions such as physical or learning disability, visual or hearing impairments, or DSM disorders more strongly predicted negative outcomes for White (Non-Hispanic) respondents than for Hispanic …


Energy Balance Related Lifestyle Factors And Risk Of Endometrial And Colorectal Cancer Among Individuals With Lynch Syndrome: A Systematic Review, Adriana M Coletta, Susan K Peterson, Leticia A Gatus, Kate J Krause, Susan M Schembre, Susan C Gilchrist, Mala Pande, Eduardo Vilar, Y Nancy You, Miguel A Rodriguez-Bigas, Larkin L Strong, Patrick M Lynch, Karen H Lu, Karen Basen-Engquist Oct 2019

Energy Balance Related Lifestyle Factors And Risk Of Endometrial And Colorectal Cancer Among Individuals With Lynch Syndrome: A Systematic Review, Adriana M Coletta, Susan K Peterson, Leticia A Gatus, Kate J Krause, Susan M Schembre, Susan C Gilchrist, Mala Pande, Eduardo Vilar, Y Nancy You, Miguel A Rodriguez-Bigas, Larkin L Strong, Patrick M Lynch, Karen H Lu, Karen Basen-Engquist

Faculty, Staff and Student Publications

Lifestyle factors related to energy balance, such as excess body weight, poor diet, and physical inactivity, are associated with risk of sporadic endometrial cancer (EC) and colorectal cancer (CRC). There are limited data on energy balance-related lifestyle factors and EC or CRC risk among individuals with lynch syndrome, who are at extraordinarily higher risk of developing EC or CRC. We conducted a systematic review of evidence related to weight status, weight change, dietary habits, and physical activity on EC and CRC risk among individuals with lynch syndrome. Findings are reported narratively. We searched Medline, EMBASE, CENTRAL, PubMed, and clinicaltrials.gov up …


Temperature, Placental Abruption And Stillbirth, Amal Rammah, Kristina W Whitworth, Inkyu Han, Wenyaw Chan, Judy Wendt Hess, Elaine Symanski Oct 2019

Temperature, Placental Abruption And Stillbirth, Amal Rammah, Kristina W Whitworth, Inkyu Han, Wenyaw Chan, Judy Wendt Hess, Elaine Symanski

Faculty, Staff and Student Publications

BACKGROUND: Pregnant women may be vulnerable to changes in ambient temperature and warming climates. Recent evidence suggests that temperature increases are associated with placental abruption, a risk factor for stillbirth.

OBJECTIVES: We investigated the effect of acute exposures to apparent temperature on stillbirths in Harris County, Texas, 2008-2013.

METHODS: We conducted a case-crossover study to investigate the association between temperature and stillbirth among 708 women. We used data from the National Climatic Data Center to estimate maternal exposure to daily average apparent temperature over the days (lag days 1 through 6) preceding the stillbirth event. We employed symmetric bidirectional sampling …


Adolescent Dating Violence Prevention Program For Early Adolescents: The Me & You Randomized Controlled Trial, 2014-2015, Melissa F Peskin, Christine M Markham, Ross Shegog, Elizabeth R Baumler, Robert C Addy, Jeff R Temple, Belinda Hernandez, Paula M Cuccaro, Melanie A Thiel, Efrat K Gabay, Susan R Tortolero Emery Oct 2019

Adolescent Dating Violence Prevention Program For Early Adolescents: The Me & You Randomized Controlled Trial, 2014-2015, Melissa F Peskin, Christine M Markham, Ross Shegog, Elizabeth R Baumler, Robert C Addy, Jeff R Temple, Belinda Hernandez, Paula M Cuccaro, Melanie A Thiel, Efrat K Gabay, Susan R Tortolero Emery

Faculty, Staff and Student Publications

Objectives. To test the efficacy of Me & You, a multilevel technology-enhanced adolescent dating violence (DV) intervention, in reducing DV perpetration and victimization among ethnic-minority early adolescent youths. We assessed secondary impact for specific DV types and psychosocial outcomes.

Methods. We conducted a group-randomized controlled trial of 10 middle schools from a large urban school district in Southeast Texas in 2014 to 2015. We used multilevel regression modeling; the final analytic sample comprised 709 sixth-grade students followed for 1 year.

Results. Among the total sample, odds of DV perpetration were lower among intervention students than among control students (adjusted odds …


Oral Delivery Of Xenon For Cardiovascular Protection, Xing Yin, Melanie R Moody, Valeria Hebert, Melvin E Klegerman, Yong-Jian Geng, Tammy R Dugas, David D Mcpherson, Hyunggun Kim, Shao-Ling Huang Oct 2019

Oral Delivery Of Xenon For Cardiovascular Protection, Xing Yin, Melanie R Moody, Valeria Hebert, Melvin E Klegerman, Yong-Jian Geng, Tammy R Dugas, David D Mcpherson, Hyunggun Kim, Shao-Ling Huang

Faculty, Staff and Student Publications

Cardiac hypertrophy often causes impairment of cardiac function. Xenon (Xe), a naturally occurring noble gas, is known to provide neurological and myocardial protection without side effects. The conventional method of Xe delivery by inhalation is not feasible on a chronic basis. We have developed an orally deliverable, effective Xe formulation for long-term administration. We employed 2-hydroxypropyl)-β-cyclodextrin (HPCD), which was dissolved in water to increase the Xe concentration in solution. The beneficial effects of long-term oral administration of Xe-enriched solutions on cardiovascular function were evaluated in vivo. HPCD increased Xe solubility from 0.22 mM to 0.67 mM (3.8-fold). Aged ApoE knockout …


Unexpected Diagnosis, Gauravpal S Gill, Rukma R Govindu, Ragai Fouda, Hussam M Ammar Sep 2019

Unexpected Diagnosis, Gauravpal S Gill, Rukma R Govindu, Ragai Fouda, Hussam M Ammar

Faculty, Staff and Student Publications

A 74-year-old man presented to the ER with an eight-month history of shortness of breath, cough, anorexia, and weight loss. He had emigrated from sub-Saharan African to the USA, where he was diagnosed and treated for coronary artery disease, heart failure, and stroke; was hospitalized several times; and underwent hernia surgery. Despite the complex care that he received in the USA for many years, the diagnosis of AIDS was continually missed for years, and the patient was eventually diagnosed at the age of 74.


9th Annual Postdoctoral Science Symposium, University Of Texas Md Anderson Cancer Center Postdoctoral Association Sep 2019

9th Annual Postdoctoral Science Symposium, University Of Texas Md Anderson Cancer Center Postdoctoral Association

Annual Postdoctoral Science Symposium Abstracts

The mission of the Annual Postdoctoral Science Symposium (APSS) is to provide a platform for talented postdoctoral fellows throughout the Texas Medical Center to present their work to a wider audience. The MD Anderson Postdoctoral Association convened its inaugural Annual Postdoctoral Science Symposium (APSS) on August 4, 2011.

The APSS provides a professional venue for postdoctoral scientists to develop, clarify, and refine their research as a result of formal reviews and critiques of faculty and other postdoctoral scientists. Additionally, attendees discuss current research on a broad range of subjects while promoting academic interactions and enrichment and developing new collaborations.


Improving The Health Care Of Foster Children Throughout The Us: Texas, A Case Example, Nickolas Agathis, Jean L. Raphael, Christopher Greeley Sep 2019

Improving The Health Care Of Foster Children Throughout The Us: Texas, A Case Example, Nickolas Agathis, Jean L. Raphael, Christopher Greeley

Journal of Applied Research on Children: Informing Policy for Children at Risk

Children who have been exposed to the foster care system comprise a high-risk, vulnerable, and potentially medically complex population that has both poor health and poor access to health care. This review with Texas as a case example aims to describe the health and health care issues impacting children in foster care (CFCs), the state and federal level mechanisms to ensure appropriate funding for the health care of CFCs, and recent legislative efforts to improve the health and health care access for CFCs. The review discusses potential solutions in regards to improving the health of CFCs through four main domains: …


First Foods Nutrition Curriculum For New Immigrant Families: A Pilot Study, Elizabeth E. Dawson-Hahn M.D., Mph, Lorren Koceja Rd, Cd, Abigail R. Grant M.D., Anisa Ibrahim M.D., Beth Farmer Lcsw, H. Mollie Grow M.D., Mph, Sarah Lowry Phd, Mph, Suzinne Pak-Gorstein Phd, Mph Sep 2019

First Foods Nutrition Curriculum For New Immigrant Families: A Pilot Study, Elizabeth E. Dawson-Hahn M.D., Mph, Lorren Koceja Rd, Cd, Abigail R. Grant M.D., Anisa Ibrahim M.D., Beth Farmer Lcsw, H. Mollie Grow M.D., Mph, Sarah Lowry Phd, Mph, Suzinne Pak-Gorstein Phd, Mph

Journal of Applied Research on Children: Informing Policy for Children at Risk

Background: Immigrant families arrive in the US from a variety of nutritional landscapes and educational experiences. Early childhood is a key time to intervene to set children on a healthy path. Creating nutritional education programs tailored for immigrant families may improve nutrition and health outcomes.

Objective: To evaluate the First Foods curriculum as a tool for knowledge and behavior change for new immigrant families of young children.

Methods: Immigrant caregivers of children less than 2 years old were invited to attend First Foods, a 4-class series. Each series was offered in 1 of 5 different languages (Arabic, Dari, Somali, Burmese, …


Predictors Of Involvement In Head Start Services Among Diverse Immigrant Families, Anne Day Leong, Francesca Longo Sep 2019

Predictors Of Involvement In Head Start Services Among Diverse Immigrant Families, Anne Day Leong, Francesca Longo

Journal of Applied Research on Children: Informing Policy for Children at Risk

Nearly 86% of Head Start preschools serve non-English speaking families. The Head Start preschool program has been shown to increase academic proficiencies in children entering kindergarten and has been particularly successful in helping immigrant children entering the U.S. education system. Family involvement in their child’s education as early as preschool has been correlated with positive academic and behavioral outcomes throughout childhood. Given the importance of Head Start services for immigrant families, this study seeks to better understand variables associated with involvement in Head Start among immigrant families. Data was collected from a diverse sample of immigrant and U.S. born families …