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Articles 31 - 60 of 129
Full-Text Articles in Medicine and Health Sciences
Fenofibrate And Insulin Resistance, Corrie E. Paeglow
Fenofibrate And Insulin Resistance, Corrie E. Paeglow
All ETDs from UAB
Both animal and human models suggest that fenofibrate, a medication widely prescribed to decrease triglycerides, also decreases insulin resistance. In the Genetics of Lipid Lowering Drugs and Diet Network (GOLDN) cohort, which included 780 individual who took 160 mg of micronized fenofibrate daily for three weeks, fenofibrate was found to decrease HOMA-IR by -0.24 units, (95% CI: -0.32, -0.14), insulin by -0.65 uU/mL (95% CI: -0.97, -0.34) and glucose by 2.46 mg/dL (95% CI: -2.51, -2.42). In a meta-analysis of 19 studies that included 1,297 individuals without diabetes and 196 individuals with diabetes treated with fenofibrate for three weeks or …
Knowledge Of Management Of Musculoskeletal Problems: Assessment Of Students Enrolled In Four Professional Programs At The University Of Alabama At Birmingham, Patricia Lee Perez
Knowledge Of Management Of Musculoskeletal Problems: Assessment Of Students Enrolled In Four Professional Programs At The University Of Alabama At Birmingham, Patricia Lee Perez
All ETDs from UAB
Background: Previous studies point to inadequate knowledge of musculoskeletal medicine for both student and practicing physicians and physical therapists. Professions with practice regulations that allow direct access by the consumer to healthcare should be assessed to determine competence in managing musculoskeletal conditions. Objective: The objective of this study was to determine if there is a difference in knowledge of the management of musculoskeletal conditions in students enrolled in four professional programs at the University of Alabama at Birmingham (UAB). Methods: Students enrolled in the last semester of medical school (MD), adult nurse practitioner (NP), physical therapy (PT) and physician assistant …
Robust Nonparametric Regression Approach For Competing Cause Censored Survival Mortality Data With Covariates, Milind Arvind Phadnis
Robust Nonparametric Regression Approach For Competing Cause Censored Survival Mortality Data With Covariates, Milind Arvind Phadnis
All ETDs from UAB
In the case of two or more competing risks when only the time to the event due to one risk is observable with times due to the other outcomes treated as censored observations, standard methods of survival analysis fall short of assessing the association of a set of predictors with the outcomes of interest. This problem is particularly severe when there is a differential association of a predictor with two competing risks (harmful for one risk and protective for the other risk) such as stroke and myocardial infarction and in situations where the predictor is associated with only one risk …
Investigation Of Numerical Approaches To Analyze Flapping Wings, Nitin Bhagat
Investigation Of Numerical Approaches To Analyze Flapping Wings, Nitin Bhagat
All ETDs from UAB
For centuries, the agility and maneuverability of flying insects have been an inspiration to fluid dynamists. A large number of research activities have been conducted within the biological, aerodynamics, and computational science communities to understand the complex flow fields around flapping insects and their capability for rapid maneuvers. However, the understanding of these natural phenomena is still in its infancy. Recent experimental flow visualizations have shown the complex vortical structures around flapping wings and vortex interactions. Even with the advent of faster and better computer processors and improved numerical algorithms, computational fluid dynamics (CFD) techniques to accurately predict flow features …
Hierarchical And Bayesian Approaches For Estimating Prevalence Based On Pool Screening, Thomas Birkner
Hierarchical And Bayesian Approaches For Estimating Prevalence Based On Pool Screening, Thomas Birkner
All ETDs from UAB
Pool screening is a method that combines individual items into pools. Each pool will either test positive (at least one of the items is positive) or negative (all items are negative). Pool screening is commonly applied to the study of tropical diseases where pools consist of vectors (e.g. black flies) that can transmit the disease. The goal is to estimate the proportion of infected vectors. In paper 1, we present a frequentist Bernoulli-Beta hierarchical model to relax the constant prevalence assumption underlying the traditional frequentist prevalence estimation approach. This assumption is called into question when sampling from a large geographic …
Three Topics In Eye Injury Research, Justin Blackburn
Three Topics In Eye Injury Research, Justin Blackburn
All ETDs from UAB
Eye injuries are a leading cause of monocular blindness, with approximately 2 million Americans sustaining an eye injury annually. Occupational eye injuries resulting in at least one missed day of work total nearly 28,000 each year. Eye injuries have many different etiologies, although most are "minor" injuries such as corneal abrasions and foreign bodies. Chemical-related eye injuries have not been described epidemiologically. The most widely advocated prevention method for eye injuries is protective eyewear, but evidence to support this is surprisingly absent. Furthermore, the use of eye protection among workers who have previously sustained an eye injury remains a question …
Exopolysaccharide: A Multi-Faceted Role In Mycoplasma Pulmonis, Jeffrey R. Bolland
Exopolysaccharide: A Multi-Faceted Role In Mycoplasma Pulmonis, Jeffrey R. Bolland
All ETDs from UAB
The recently characterized exopolysaccharide of Mycoplasma pulmonis, EPS-I, has been identified as modulating the susceptibility to complement-mediated lysis and binding to host mucosal epithelium. M. pulmonis produces family of size- and phase-variable lipoproteins called Vsa. Previous evidence has strongly demonstrated that the length of the tandem repeat region of the M. pulmonis Vsa protein is associated with the susceptibility to the host innate immune system through complement-mediated lysis. Mycoplasmas producing a long form of Vsa, containing about 40 repeats, are resistant complement whereas strains that produce the short form of Vsa, 5 repeats or fewer, are susceptible. Furthermore, the size …
The Predictability Of C-Reactive Protein, Lipoprotein-Associated Phospholipase A2, And Depression On Later Health Outcomes In Patients Experiencing A First-Time Stroke, Mary King Brethour
The Predictability Of C-Reactive Protein, Lipoprotein-Associated Phospholipase A2, And Depression On Later Health Outcomes In Patients Experiencing A First-Time Stroke, Mary King Brethour
All ETDs from UAB
Stroke is the third leading cause of death and the most common cause of neurologic disability for adults in developed nations. Strokes trigger an acute inflammatory response prompted by brain tissue injury at the infarct site and the surrounding ischemic penumbra raising plasma levels of inflammatory markers. C-reactive protein (CRP), an acute-phase inflammatory marker, has been significantly correlated with infarct size and post-stroke complications. Lipoprotein-associated phospholipase A2 (Lp-PLA2) may also predict long-term cardiovascular risk in the stroke population. In addition to physiologic changes, up to 60% of all stroke survivors are known to experience depression, which may contribute to decreased …
Mitochondrial Genetics And Function In Cardiovascular Disease Susceptibility, Jessica L. Brenneman
Mitochondrial Genetics And Function In Cardiovascular Disease Susceptibility, Jessica L. Brenneman
All ETDs from UAB
While progress has been made in understanding the development and progression of cardiovascular disease (CVD), the mechanisms of CVD risk and initiation are not completely understood. It is widely accepted that CVD is the result of a combination of genetic and environmental factors but it is not known why some populations with otherwise similar risk factors appear more susceptible to CVD than others. It is also known that different strains of laboratory mice have distinct susceptibilities to CVD development. For example, C3H mice are resistant to diet induced atherogenesis whereas C57 animals are susceptible. We have also found that the …
Experimental Determination Of Shielding Requirements For Pet Medical Facilities, Bradley Scott Brinkley
Experimental Determination Of Shielding Requirements For Pet Medical Facilities, Bradley Scott Brinkley
All ETDs from UAB
Purpose: Shielding considerations are important for designing a positron emission tomography/computed tomography (PET/CT) imaging facility, because of the high energy (511 keV) of electron-positron annihilation photons. Since radiation emitted from patients administered PET radiopharmaceuticals includes lower-energy scattered photons, a given thickness of lead attenuates more of the radiation than it would for a monoenergetic beam of 511 keV photons. A more accurate determination of the effective attenuation coefficient of lead for the spectra of photon energies emitted from PET/CT patients could reduce the shielding requirements necessary to adequately protect public health. In this work, the spectra of energies emitted from …
Role Of Ras Proteins In Malignant Peripheral Nerve Sheath Tumors, Nicole Marie Brossier
Role Of Ras Proteins In Malignant Peripheral Nerve Sheath Tumors, Nicole Marie Brossier
All ETDs from UAB
Malignant peripheral nerve sheath tumors (MPNSTs) arising in patients with neurofibromatosis type I (NF1) are null for the tumor suppressor neurofibromin, a negative regulator of signaling from both classic Ras (H-Ras, N-Ras and K-Ras) and R-Ras (R-Ras, R-Ras2/TC21, M-Ras/R-Ras3) subfamily members. Treatment of these tumors with Ras-targeted agents such as farnesyltransferase inhibitors has proven unsuccessful, likely due to the inability of these agents to successfully target all of the Ras isoforms regulated by neurofibromin. Thus, determining which Ras isoforms are critical for MPNST pathogenesis would be of therapeutic value. In this dissertation, we first review the clinical manifestations of NF1 …
Identification And Characterization Of Novel Adenosine Cleavage Enzymes In Mycobacteria, Kajal Buckoreelall
Identification And Characterization Of Novel Adenosine Cleavage Enzymes In Mycobacteria, Kajal Buckoreelall
All ETDs from UAB
Tuberculosis (TB) is one of the leading infectious diseases in the world. An estimated one third of the world's population is infected with Mycobacterium tuberculosis, the causative pathogen of TB. With the emergence of drug resistant strains of the mycobacterium, and the HIV-TB coinfection epidemic, TB remains a global health emergency. Purine metabolism is an essential cellular component to all living cells. Previous studies have shown that differences exist between mycobacterial and human purine metabolism. One of the differences was in the metabolism of adenosine (Ado), whose cleavage was observed in mycobacterial cells whereas Ado cleavage is inefficient in human …
The Effect Of An Inclusive Trauma System On Homicide Risk In An Urban Population, Russell Griffin
The Effect Of An Inclusive Trauma System On Homicide Risk In An Urban Population, Russell Griffin
All ETDs from UAB
Homicide is a leading cause of mortality in the United States, with approximately 18,000 homicides occurring annually. Most prevention efforts for homicide are aimed at primary (e.g., culling aggressive behaviors among youth) or secondary (e.g., preventing repeat violence) efforts. To date, there has been limited research on tertiary prevention efforts of homicide (i.e., preventing homicide by preventing deaths from assault-related injuries). With the advent of trauma systems (TS), which allow for rapid emergency medical response for injured individuals, it is possible that these systems may be an ef-fective effort of tertiary prevention of homicides. Using data from the Jefferson County …
The Sodium-Potassium-Chloride Cotransporter In Glioma Biology, Brian R. Haas
The Sodium-Potassium-Chloride Cotransporter In Glioma Biology, Brian R. Haas
All ETDs from UAB
The most common malignant primary brain tumor, gliomas usually derive from glial cells including oligodendrocytes and astrocytes. These tumors are characterized by high rates of proliferation and aberrant migration which make them notoriously difficult to treat using standard treatment paradigms such as chemotherapy and radiation. In order for glioma cells to migrate into the surrounding brain tissue, they must undergo rapid and dynamic volume changes. Previous work published by the Sontheimer laboratory and others indicates glioma utilize the flux of ions across the cell membrane to aid in volume changes associate with cell migration. In this dissertation, I show the …
Determining The Functional Role Of Trem-Like Transcript 2 In The Innate Immune Response, Matthew Martin Halpert
Determining The Functional Role Of Trem-Like Transcript 2 In The Innate Immune Response, Matthew Martin Halpert
All ETDs from UAB
TLT2 is one of four receptors conserved between mouse and human within the TREM locus, and is expressed on B cells, macrophages, and neutrophils. TLT2 ligation on murine macrophages induces the production of chemokines and growth factors, as evidenced by ex vivo treatment with anti-TLT2 mAbs. This treatment did not lead to the upregulation of activation markers such as CD69 or costimulatory molecules such as CD80 and CD86, indicating a specific response following TLT2 ligation. This is recapitulated in vivo following injection of anti-TLT2 mAbs resulting in the production of chemokines and growth factors, which ultimately lead to enhanced neutrophil …
Ampa Receptor Trafficking In Schizophrenia, John Hammond
Ampa Receptor Trafficking In Schizophrenia, John Hammond
All ETDs from UAB
The glutamate hypothesis of schizophrenia is based primarily on NMDA receptor dysfunction. Recent studies have led to an expansion of this hypothesis to include AMPA receptors which are essential for neurotransmission through NMDA receptors. Examination of total AMPA receptor protein expression in schizophrenia has been inconsistent and led to examination of AMPA receptor interacting proteins and trafficking and subcellular localization of the receptors. AMPA receptors are highly trafficked from the endoplasmic reticulum to the synapse and in a complex system of endosomes. Alterations in the subcellular localization of these receptors may be a part of the underlying pathophysiology of schizophrenia. …
Calciotropic Hormonal Influence On Energy Homeostasis, Lynae J. Hanks
Calciotropic Hormonal Influence On Energy Homeostasis, Lynae J. Hanks
All ETDs from UAB
Energy balance exists when intake is equivalent to expenditure. It has become evident that beyond quantitative aspects of intake, dietary components also have directive impact. On the expenditure side, an underappreciated yet key contributor is resting energy expenditure (REE). As the largest constituent of overall energy output, REE encompasses physiologic, dietary and genetic influence on body composition. While cellular and overall systemic contribution cannot be ignored, the relative proportion of adipose, bone and lean body tissue (i.e., body composition) represents the primary determinant underlying REE. It is possible that the mineral calcium is a common denominator encompassing energy balance influenced …
Bone Morphogenetic Protein Signaling Pathways During Mouse Heart Development: Roles For Chd7 And Mycn, Cristina Harmelink
Bone Morphogenetic Protein Signaling Pathways During Mouse Heart Development: Roles For Chd7 And Mycn, Cristina Harmelink
All ETDs from UAB
Bone Morphogenetic Protein (BMP) signaling pathways are imperative for proper heart development. BMP ligands bind serine threonine kinase receptors, which activate intracellular receptor-regulated SMAD proteins. SMAD1, SMAD5, and SMAD8 transduce BMP signals from the cytoplasm to the nucleus, where they regulate transcription. We have investigated two aspects of BMP signaling during mouse cardiogenesis: identifying SMAD1-interacting proteins and exploring the roles of a known BMP target, Mycn, in the developing myocardium. Chromodomain helicase DNA binding protein 7 (CHD7) is a highly conserved transcription factor that promotes protein synthesis, proliferation, and differentiation. Haploinsufficiency for CHD7 causes CHARGE syndrome, a developmental disorder characterized …
The Role Of Mitochondrial Oxidative Stress In Cardiovascular Disease Development, Corey Michael Harrison
The Role Of Mitochondrial Oxidative Stress In Cardiovascular Disease Development, Corey Michael Harrison
All ETDs from UAB
An estimated 70 million Americans have one or more types of cardiovascular disease (CVD). Although the sequence of events leading to CVD are still controversial, there is a general consensus that atherosclerotic lesions result from oxidative stress associated with risk factor. For this study, it was hypothesized that endogenous mitochondrial oxidative stress would influence susceptibility to atherogenesis and mitochondrial damage mediated by CVD risk factor exposure. To test this hypothesis, atherosclerotic lesion formation, oxidant stress, and mitochondrial DNA damage were assessed in hypercholestoremic mice (apolipoprotein E null - apoE -/- SOD2 +/+) and mice with significantly decreased levels of the …
In Vivo Analysis Of The Natural Diversity Of The Igr Ires Family And Characterization Of The Role Of Ribosomal Protein S25 In Ires-Mediated Translation, Marla Ilene Hertz
In Vivo Analysis Of The Natural Diversity Of The Igr Ires Family And Characterization Of The Role Of Ribosomal Protein S25 In Ires-Mediated Translation, Marla Ilene Hertz
All ETDs from UAB
Translation of the majority of eukaryotic mRNAs is initiated upon recognition of its 5' cap structure by translation initiation factors in so-called cap-dependent translation. Cap-dependent translation is repressed during cell stress and translation initiation by internal ribosome entry sites (IRESs) predominates. IRESs, located in the 5' untranslated region of specific mRNAs, recruit the ribosome independent of the 5' cap and are essential regulatory elements in many RNA viruses and cellular messages. The dysregulation of cellular IRESs has been linked to cancer because they regulate the expression of genes involved in growth, development and stress response. In comparison to cap-dependent translation, …
The Role Of Ll-37 In Prostate Cancer And Its Potential As A Therapeutic Target, Jonathan Adam Hensel
The Role Of Ll-37 In Prostate Cancer And Its Potential As A Therapeutic Target, Jonathan Adam Hensel
All ETDs from UAB
LL-37 is the only cathelicidin-derived anti-microbial peptide in humans and has been shown to stimulate proliferation, angiogenesis, cellular migration and inhibit apoptosis, in addition to serving as a chemoattractant for leukocytes. It is produced primarily by epithelial cells and leukocytes, and has recently been discovered to be over-expressed in breast, ovarian and lung cancers. Based on these findings, we compared levels of LL-37 expression in benign and cancerous human prostate tissues. Results of this investigation demonstrated that LL-37 is increasingly over-expressed in primary prostate tumors in a grade dependent manner and in metastatic lesions. Since the physiological mechanisms of LL-37 …
Protein Modifications And The Response To Oxidized Lipids In Cardiovascular Cells, Ashlee Higdon
Protein Modifications And The Response To Oxidized Lipids In Cardiovascular Cells, Ashlee Higdon
All ETDs from UAB
Free radical catalyzed oxidation of polyunsaturated fatty acids (PUFAs) such as arachidonic acid is increased in cardiovascular disease states, including atherosclerosis and heart failure. Oxidized lipids have been extensively studied and found to recapitulate several key steps in atherogenesis. However, clinical trials with antioxidants such as alpha-tocopherol have been less promising than originally predicted. Now appreciated as more than just biomarkers of disease, lipid peroxidation products have been shown to have roles in pathogenesis as well as physiology. Of particular interest are reactive lipid species that possess electrophilic carbonyls enabling them to act in a receptor-independent manner. To date, the …
Risk Associations Between Perceived Stress, Allostatic Load, And Insulin Resistance Among Nondiabetic African American Women Of The Jackson Heart Study, Alethea N. Hill
Risk Associations Between Perceived Stress, Allostatic Load, And Insulin Resistance Among Nondiabetic African American Women Of The Jackson Heart Study, Alethea N. Hill
All ETDs from UAB
Objectives: The purpose of this study was to evaluate the associations between perceived stress, allostatic load, and insulin resistance measured by HOMAIR among nondiabetic African American women of the Jackson Heart Study. Methods: The investigative team examined the cross-sectional associations (2000-2004) of perceived stress, summary indices of allostatic load, and insulin resistance in 2,245 nondiabetic African American women, stratified by glycemic profile, participating in the Jackson Heart Study. Measurements include physiological markers, anthropometric measures, and (3) stress instruments: Weekly Stress Inventory (WSI), Global Stress (STS), and JHS Discrimination Questionnaire (DIS). t-tests, ÷2 test, bivariate correlations, and forward hierarchical linear regression …
The Relationship Between Sunlight And Cerebrovascular Health, Shia T. Kent
The Relationship Between Sunlight And Cerebrovascular Health, Shia T. Kent
All ETDs from UAB
Sunlight radiation may be related to stroke risk through increased vitamin D production. The latter has been associated with a number of conditions including stroke, cognitive function and cardiovascular disease. We performed three sets of analyses to determine whether higher levels of sunlight radiation were associated with lower rates of stroke incidence, all-cause mortality, and cognitive decline. We explored these relationships using the REasons for Geographic And Racial Differences in Stroke (REGARDS) study, a national longitudinal cohort of 30,239 participants. We merged the participants' residential histories with a ground and satellite-derived NASA dataset to characterize 15-year average sunlight radiation and …
Structural Analyses Of Streptococcus Agalactiae Sortases, Baldeep Khare
Structural Analyses Of Streptococcus Agalactiae Sortases, Baldeep Khare
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Multi-drug resistance in Gram-positive bacteria is a growing and unwavering challenge for twenty-first century medicine. The enzyme sortase, identified just around the turn of the century, has since become a promising target for development of anti-infective drugs. Streptococcus agalactiae or Group B Streptococcus (GBS), encodes multiple sortases, which participate in various processes and whose functions are only beginning to be understood in detail. Sortases are cysteine proteases that are crucial for Gram-positive pili biogenesis. Two classes of sortases, class C and class A, participate in the assembly of structural components (pilins) to form the pili and subsequent anchoring of the …
Low And High Let Irradiation Of Human Aortic Endothelial Cells Induces Dose And Time Dependent Adhesion Of Monocytes Which Is Mediated By Chemokines Expressed By The Irradiated Endothelium., Saman Fatima Khaled
Low And High Let Irradiation Of Human Aortic Endothelial Cells Induces Dose And Time Dependent Adhesion Of Monocytes Which Is Mediated By Chemokines Expressed By The Irradiated Endothelium., Saman Fatima Khaled
All ETDs from UAB
Exposure to radiation from a variety of sources is associated with increased risk of heart disease and stroke. Since radiation also induces inflammation, a possible mechanism is a change in the adhesiveness of vascular endothelial cells, triggering pro-atherogenic accumulation of leukocytes. To investigate this mechanism at the cellular level, the effect of xrays, iron (Fe56) ions, and protons on adhesiveness of cultured human aortic endothelial cells (HAECs) was determined. HAECs were grown as monolayers and exposed to 0 to 30 Gy X-rays, 0, 2, and 5 Gy Fe56 ions, and 0, 0.5, and 2 Gy protons followed by measurement of …
Broad And Potent Neutralizing Antibody Responses Elicited In Natural Hiv-2 Infection, Rui Kong
Broad And Potent Neutralizing Antibody Responses Elicited In Natural Hiv-2 Infection, Rui Kong
All ETDs from UAB
Little is known about the potency, breadth and epitope specificities of neutralizing antibody (Nab) responses elicited in natural HIV-2 infection. Analysis of plasma specimens from 64 HIV-2 chronically-infected subjects in a single round infectivity assay (JC53bl-13/TZM-bl) revealed median reciprocal IC50 Nab titers of 1.7x105, 2.8x104 and 3.3x104 against three primary virus strains, HIV-27312A, HIV-2ST and HIV-2UC1, respectively. A subset of 5 plasma samples was tested on 17 additional HIV-2 strains, and similarly high Nab titers were observed against all but four viruses. These Nab titers were higher, by orders of magnitude, than HIV-1 Nab titers in plasma from chronically infected …
Sox2/Parylated Parp1 Complexes Regulate Pluripotency, Yi-Shin Lai
Sox2/Parylated Parp1 Complexes Regulate Pluripotency, Yi-Shin Lai
All ETDs from UAB
Embryonic stem cells (ESCs) were first derived from the inner cell mass (ICM) of blastocyst-stage embryos. ESCs are distinguished from other cell types by their pluripotency and unlimited self-replication. ESCs are able to differentiate into multiple cell types that represent all three primary germ layers (ectoderm, mesoderm and endoderm) and can form an entire adult organism. Under defined conditions, ESCs are self-renewable and have an extended life-span without compromising pluripotency. The plasticity of ESCs provides opportunities for regenerative medicine. The recent production of induced pluripotent stem cells (iPSC) offers an ideal "personalized" substitute for ESCs. Overexpression of four transcription factors, …
The Role Of Trib3 In Insulin Resistance: Its Action As Nutrient Sensor And Regulator Of Insulin Action, Jiarong Lamiquiz
The Role Of Trib3 In Insulin Resistance: Its Action As Nutrient Sensor And Regulator Of Insulin Action, Jiarong Lamiquiz
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THE ROLE OF TRIB3 IN INSULIN RESISTANCE: ITS ACTION AS NUTRIENT SENSOR AND REGULATOR OF INSULIN ACTION JIARONG LIU LAMIQUIZ PATHOLOGY ABSTRACT Insulin resistance is a hallmark of Type 2 diabetes (T2DM). A reduced capacity for insulin to stimulate increases in glucose uptake and glucose oxidation in insulin sensitive tissues, such as skeletal muscle and adipose tissue, are common defects in patients with insulin resistance, T2DM, and other related diseases. Tribbles homolog 3 (TRIB3) has been demonstrated to play a role in insulin resistance by serving as a negative regulator of Akt in mouse liver, fat, and pancreas. In a …
Three Dimensional Comparison Of Facial Morphology Of A Native Egyptian Population And A Native Brazilian Population, Ethan Larson
Three Dimensional Comparison Of Facial Morphology Of A Native Egyptian Population And A Native Brazilian Population, Ethan Larson
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Introduction: The purpose of this study was to assess the use of three dimensional facial averages in determining facial morphological differences between a native adult Egyptian population and a native adult Brazilian population. Methods: Three- dimensional images were acquired through a commercially available stereo-photogrammetric camera system. The 3dMDfaceTM system was used to capture images from 186 subjects from two population groups (Egypt and Brazil). Each image was obtained as a facial mesh and orientated along a triangulated axis. All facial images were overlaid and superimposed, and a complex mathematical algorithm was performed to create a composite facial average of one …