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Full-Text Articles in Entire DC Network
Emergence Of Restricted Repetitive Behaviors In Individuals With Autism Spectrum Disorder And Tuberous Sclerosis Complex, Helen Root
All ETDs from UAB
Genetic disorders are ideal populations through which to study the development of Autism Spectrum Disorder (ASD; Moss, Richards, Nelson & Oliver, 2012). Tuberous Sclerosis Complex (TSC) is a particularly compelling population due to the high prevalence of ASD and prenatal diagnostic ability (Jeste, Wu, Senturk, Varcin, McCarthy, Shimzu, ScM, Vogel-Farley, Sahin & Nelson, 2014; McDonald, Varcin, Bhatt, Wu, Sahin, Nelson & Jeste, 2017; Sundberg & Sahin, 2015). However, findings related to the two core symptom domains of ASD within TSC are mixed, with little research examining restricted repetitive behaviors (RRBs). The current study aimed to define the presence and profile …
Pannexin 1 Channel Inhibition To Prevent Triggered Arrhythmia, Grace Elizabeth Salzer
Pannexin 1 Channel Inhibition To Prevent Triggered Arrhythmia, Grace Elizabeth Salzer
All ETDs from UAB
The mechanism of triggered arrhythmia generation involves inappropriate diastolic calcium (Ca2+) releases from the sarcoplasmic reticulum that promote membrane depolarization when the released Ca2+ is transported out of the cardiomyocyte via the sodium Ca2+ exchanger (NCX). If membrane depolarization is large enough, these events can trigger an ectopic action potential. However, it is not fully understood what physiological factors facilitate triggered events at the tissue level. Pannexin 1 (Px1), a large transmembrane conductance channel, can be activated by various stimuli including increases in intracellular Ca2+. We predict that during diastolic Ca2+ releases, Px1 becomes activated and together with the NCX, …
Transcriptional Dynamics Of Dopaminergic Signaling, Katherine Elizabeth Savell
Transcriptional Dynamics Of Dopaminergic Signaling, Katherine Elizabeth Savell
All ETDs from UAB
Drugs of abuse increase dopamine concentrations in the nucleus accumbens, a key reward structure that integrates contextual and cue-related information and regulates motivated behavior. This surge of dopamine triggers cell signaling cascades that converge in the nucleus to cause changes in gene expression, which are thought to lead to the observed functional and structural alterations in the reward circuit after exposure to drugs of abuse. However, while various drugs of abuse cause transcriptional changes, previously available tools have not had the capacity to deeply characterize these gene programs. Therefore, we optimized a dual lentivirus CRISPR system for targeted gene modulation …
Intracellular Compartment-Specific Abnormalities In Proteasome Expression And Activity In The Superior Temporal Gyrus In Schizophrenia, Madeline R. Scott
Intracellular Compartment-Specific Abnormalities In Proteasome Expression And Activity In The Superior Temporal Gyrus In Schizophrenia, Madeline R. Scott
All ETDs from UAB
Protein homeostasis is an emerging component of schizophrenia (SZ) pathophysiology. Proteomic alterations in SZ are well-documented; however the underlying mechanism driving these changes remains unknown. The ubiquitin proteasome system (UPS) is fundamental to protein homeostasis regulation, and UPS transcript abnormalities in both blood and brain have been observed in SZ. Supporting a role for UPS dysfunction in SZ, we have reported decreased protein expression of ubiquitin-associated proteins in SZ brain. However, previous work on the proteasome has been limited to transcript expression. In the following studies we sought to address this gap in knowledge by characterizing proteasome dysfunction in the …
Novel Approaches To Enhance Translational Readthrough Efficacy For Cystic Fibrosis Nonsense Mutations, Jyoti Sharma
Novel Approaches To Enhance Translational Readthrough Efficacy For Cystic Fibrosis Nonsense Mutations, Jyoti Sharma
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Cystic fibrosis (CF) is a monogenic autosomal recessive disease caused by over 1,900 naturally occurring variants in the CF transmembrane conductance regulator (CFTR). CFTR is an epithelial anion channel which regulates the movement of chloride and bicarbonate ions. Mutations in the CFTR causes diminished CFTR protein and/or reduced CFTR function that lead to clinical manifestations. These include severe epithelial dysfunction of multiple tissues, including the lungs, intestine, pancreas, and reproductive organs. Premature termination codons (PTC), or nonsense mutations, are among the most severe CFTR variants and occur in ~11% of the CF population. PTCs are caused by the presence of …
New Authentication And Privacy Paradigms In Mobile And Wearable Computing, Prakash N/A Shrestha
New Authentication And Privacy Paradigms In Mobile And Wearable Computing, Prakash N/A Shrestha
All ETDs from UAB
Mobile devices (e.g., smartphones) have already become ubiquitous, and wearable technology (e.g., embodied in smartwatches or bracelets) is gaining popularity in many – commercial, medical and personal – domains of day-to-day life. Many of the security schemes, particularly authentication paradigms, have been designed and deployed utilizing the general-purpose mobile devices, and many of them have started using wearable devices. The use of these devices, on one hand, improves user experience, while, on the other hand, opens up security and privacy vulnerabilities. In this dissertation work, we explore new authentication and privacy paradigms, from both offensive and defensive perspectives, in/using mobile …
A Scalable Nearline Disk Archive Storage Architecture For Extreme Scale High Performance Computing, Hampton Walker Haddock
A Scalable Nearline Disk Archive Storage Architecture For Extreme Scale High Performance Computing, Hampton Walker Haddock
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Parallel file systems that exploit Redundant Arrays of Inexpensive Devices (RAID) as the mechanism for greater resilience are primarily intended to provide high bandwidth and low latency. Quantifying and studying the trade-offs among reduced run time (bandwidth and latency), resilience (availability and integrity), and cost (energy and capital) is important. For instance, distributing the checksums of RAID systems appears in conflict with the canonical parallel access patterns in high performance computing such as long sequential reads, random access, and checkpoint operations. Choices consequently have to be made between performance, concurrency, latency, energy, capital, integrity and availability of the data for …
Relationship Between Frustration Tolerance And Psychological Self-Regulatory Mechanisms In Weight Loss Maintenance, Samantha Kaytana Henry
Relationship Between Frustration Tolerance And Psychological Self-Regulatory Mechanisms In Weight Loss Maintenance, Samantha Kaytana Henry
All ETDs from UAB
The present study investigated the relevance of frustration tolerance and other psychological regulation factors (e.g., trait mindfulness, executive function) to long-term weight maintenance. Using a cross-sectional design, participants (N=91) were recruited from three behavioral weight loss interventions and categorized dichotomously (maintainer vs. regainer) based on their level of success in maintaining weight loss long term. Participants completed the Frustration Discomfort Scale (FDS), objective measures of executive functioning (EF), and self-report questionnaires. Poorer frustration tolerance was significantly associated with lower trait mindfulness, higher negative affectivity, and greater difficulties in self-reported EF. There were no differences by race or weight maintenance status. …
Designing And Implementing Inclusive Community-Based Health Promotion Intiatives, Cassandra Herman
Designing And Implementing Inclusive Community-Based Health Promotion Intiatives, Cassandra Herman
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Background: People with disabilities (PWDs) have poorer health outcomes, yet are they are underserved by public health initiatives. PWDs face numerous barriers to participation in community-based health programs despite mounting evidence about these barriers along with recommendations and guidelines to become more inclusive of disability. Policy, system, and environmental (PSE) changes that are inclusive of PWDs can help create access to health promotion programs for PWDs. Systematically implementing inclusive PSE changes using implementation science principles can support effective and sustainable changes are implemented for each unique community context. The purpose of this dissertation is to explore the experiences of public …
Perceptions Of African-American Teachers Concerning African-American Youth, D'Antranett Hicks-Stewart
Perceptions Of African-American Teachers Concerning African-American Youth, D'Antranett Hicks-Stewart
All ETDs from UAB
Perceptions of African American youth have been illustrated by how they are perceived on television: as deviants, criminals and unteachable. These perceptions are also illustrated in the behaviors of teachers in both inner-city and suburban schools. African American teachers in the inner-city schools have hope of changing the world for the better until they are met with difficult challenges presented by African-American students. Some students are excellent and some not so excellent. The structural environment of African-American youth can so strongly influence their behavior, that they begin to take on their perceptions. This can be seen in their choice friends, …
An Exploratory Phenomenological Study To Investigate The Necessity Of An Athlete-Specific Bystander Intervention Program, Alexander Ian Gaits Hoffman
An Exploratory Phenomenological Study To Investigate The Necessity Of An Athlete-Specific Bystander Intervention Program, Alexander Ian Gaits Hoffman
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It has been well established that college athletes are among the most at-risk student populations for engaging in heavy episodic drinking and other risky alcohol and drug use behavior including but not limited to risky sexual behavior. Despite this knowledge, to date there are no truly effective long-term education, intervention, prevention, or treatment programs. This is especially true for bystander approaches. Bystander interventions have shown effectiveness in decreasing sexual assaults and changing rape mythology, but there has not been much research on its effectiveness on alcohol and drug use. There is also a lack of knowledge and understanding on how …
Structural And Functional Insights Into Influenza A Virus Ns1-Mediated Rig-I Antagonism, Alexander Jureka
Structural And Functional Insights Into Influenza A Virus Ns1-Mediated Rig-I Antagonism, Alexander Jureka
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The influenza virus non-structural protein 1 is well known to antagonize the host innate immune response through its interaction with the innate immune sensor, retinoic acid induc-ible gene I (RIG-I). While the complete mechanism of the NS1:RIG-I interaction remains unclear, we were the first to demonstrate a direct interaction between the NS1 RNA-binding domain (NS1RBD) from the 1918H1N1 influenza virus and the second caspase activa-tion and recruitment domain (CARD2) of RIG-I using NMR. In addition, we also identi-fied that mutation of Arg 21 in the 1918H1N1 NS1RBD to Gln (R21Q) completely abrogated the NS1:CARD2 interaction. Given that CARD2 plays a …
Marcks Effector Domain: Functions In Glioblastoma Progression And Novel Cytolytic Therapy, Nicholas James Eustace
Marcks Effector Domain: Functions In Glioblastoma Progression And Novel Cytolytic Therapy, Nicholas James Eustace
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Glioblastoma (GBM; grade IV astrocytoma) is the most common primary adult brain malignancy and remains incurable despite tremendous advances in our understanding of this heterogeneous disease. In this dissertation, we explore the challenges encountered in the treatment of GBM and discuss a promising new therapeutic approach gleaned from studies of the phospholipid binding “effector” domain (ED) of the protein Myristoylated alanine-rich protein C kinase substrate (MARCKS). Following an introduction to central nervous system (CNS) tumors and the grading of diffuse gliomas, we explain how recent advancements to our understanding of the cellular and molecular composition of CNS tu-mors, and the …
Wear Of Orthodontic Bite Turbos And Opposing Enamel, Kyle Feagin
Wear Of Orthodontic Bite Turbos And Opposing Enamel, Kyle Feagin
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Orthodontic bite turbos are used to separate the maxillary and mandibular arches when disocclusion is needed for facial placement of orthodontic brackets or extrusion of teeth. The bite turbo should have adequate wear resistance to maintain the disocclusion but also avoid abrasion of the opposing enamel. The objective of this study was to measure the wear and opposing enamel wear of three materials used as bite turbos. 8 specimens (10x8x4 mm) each of Transbond LR (3M), Transbond Plus (3M) and Triad gel (Dentsply) were prepared in silicone molds and light cured for 30 seconds using an Acteon Satelec Blue Ray …
A Study Of Enamel Thickness Of Permanent Maxillary Canines, Daniel Diaz Rubayo
A Study Of Enamel Thickness Of Permanent Maxillary Canines, Daniel Diaz Rubayo
All ETDs from UAB
Introduction: Tooth agenesis is defined as the lack of development of a tooth. Maxillary lateral incisors have been reported to be missing in 2.2% of the population in the United States of America. Two treatment options are available: opening the space to restore the missing tooth with a dental prosthesis; or close the space by moving the adjacent teeth into the space and substituting the missing lateral incisor with the maxillary canine. With a wider crown and a more convex labial surface than lateral incisors, canines require a significant amount of reduction in order to achieve an adequate occlusion and …
Regulation Of St6gal-I In Cancer: Sox2 Identified As Novel Driver Of St6gal-I Expression, Kaitlyn Alexandra Dorsett
Regulation Of St6gal-I In Cancer: Sox2 Identified As Novel Driver Of St6gal-I Expression, Kaitlyn Alexandra Dorsett
All ETDs from UAB
ST6Gal-I is a sialyltransferase that functions to add an 2-6 linked sialic acid to N-linked glycoproteins. The expression of ST6Gal-I is upregulated in many cancers at both the mRNA and protein levels. ST6Gal-I has also been shown to promote cancer stem cell (CSC) characteristics including chemoresistance, tumor-initiating potential, and spheroid growth. However, the transcriptional drivers of ST6Gal-I expression in stem-like cells remain largely unknown. Herein we highlight that SOX2 and ST6GAL1 are both located on one of the most commonly amplified chromosomal segments in cancer, amplicon 3q26. Copy number gains in both SOX2 and ST6GAL1 are observed in roughly 25% …
What Are The Factors Related To The Success Or Failure Of Adolescents Enrolled In Uab Tasc Adolescent Substance Abuse Program?, Tamesha Alicia Duesbury
What Are The Factors Related To The Success Or Failure Of Adolescents Enrolled In Uab Tasc Adolescent Substance Abuse Program?, Tamesha Alicia Duesbury
All ETDs from UAB
Illicit drug use during adolescence is common. According to the National Survey on Drug Use and Health, marijuana usage and the misuse of prescription pain relievers were the main substances used during 2016. The survey reported that 4 million people age 12 and over were diagnosed with a marijuana disorder, 2.1 million an opioid use disorder, and 1.8 million with a prescription pain reliever disorder. Limited research has been conducted on adolescent substance abuse programs, yet there is a need for effective and efficient interventions. Using multiple logistic regression this study sought to identify the factors contributing to the success …
Effectiveness Of Cardiopulmonary Rehabilitation On The Functional Capacity Of Cardiac Patients One-Year Post Rehab, Danish Gulamani
Effectiveness Of Cardiopulmonary Rehabilitation On The Functional Capacity Of Cardiac Patients One-Year Post Rehab, Danish Gulamani
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ABSTRACT Cardiac rehabilitation (CR) programs are designed to improve functional capacity, quality of life, reduce cardiovascular risk factors, and improve psychosocial well-being through lifestyle management strategies. While CR programs effectively reduce cardiovascular disease (CVD) risk factors and improve functional capacity at discharge, little is known regarding long-term lifestyle behavior changes and changes in functional capacity that occur following discharge. PURPOSE: Examine changes in 6-minute walk distance (6MWD) 11-15 months following discharge from CR to evaluate long-term changes in functional capacity. METHODS: Patients who completed 24-36 sessions and 6-minute walk tests [6MWT, intake, discharge, and post-discharge (11-15 months following discharge)] between …
Religion, Psychological Distress, And Discrimination Among Arab Americans, Najwa Alharbi
Religion, Psychological Distress, And Discrimination Among Arab Americans, Najwa Alharbi
All ETDs from UAB
A growing body of research has focused on the experiences of Arab Americans post-9/11. These studies have been conducted to investigate the relationship between ethnic discrimination and mental health among Arab Americans. However, these studies show some gaps. Specifically, no study has explored the differences between Muslim and Christian Arabs after the 9/11 attacks in terms of religion, including how religious attendance influences the levels of psychological distress and discrimination among the two religious groups. This paper is dedicated to exploring religion (religious affiliation and religious attendance) as a key factor to understand the different levels of psychological distress and …
Identification Of Two Spop-Mediated Pathways In Prostate Cancer Progression, Joshua Fried
Identification Of Two Spop-Mediated Pathways In Prostate Cancer Progression, Joshua Fried
All ETDs from UAB
Prostate cancer is one of the most common malignancies and causes of cancer related death in men. Morbidity is primarily attributed to late-stage and metastatic disease. Re-cent genomic screening studies have revealed that the Speckle type Poz Protein (SPOP) is the most frequently altered gene by missense mutations in prostate cancer. Interestingly, all of the identified mutations were located in the substrate binding domain of SPOP. Here, two pathways highlighting the impact of SPOP mutation on prostate cancer are pre-sented. First, evidence showing that one of the naturally occurring SPOP mutations, ser-ine 119 to asparagine (S119N), induces radiosensitivity and an …
Stories From Rwandan Churches Prior To The Genocide; A Collection Of Oral Histories, Carmen Ava Lau
Stories From Rwandan Churches Prior To The Genocide; A Collection Of Oral Histories, Carmen Ava Lau
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STORIES FROM RWANDAN CHURCHES PRIOR TO THE GENOCIDE: A COLLECTION OF ORAL HISTORIES CARMEN A. LAU ANTHROPOLOGY PEACE & HUMAN RTS ABSTRACT As a tragedy in which religion did not serve as demarcation between rival groups, the Rwandan Genocide provides an example of Christians killing Christians. I use interviews from 14 Rwandan survivors who were Seventh-day Adventists, a Protestant group to which both heroes and villains belonged. Based on Eisler’s Theory of Cultural Transfor-mation, I assume that narratives inform action. I examine oral histories through a frame-work that searches for elements of Girard’s Mimetic Rivalry that might have influenced Adventists …
The Role Of Nudc In Rod Photoreceptor Cell Maintenance: A New Function For An Old Protein, Evan Boitet
The Role Of Nudc In Rod Photoreceptor Cell Maintenance: A New Function For An Old Protein, Evan Boitet
All ETDs from UAB
The overall health and maintenance of rod photoreceptors depends on directed vectorial transport of rhodopsin from its synthesis within the inner segment to its target destination the outer segment disk membranes. Numerous proteins are known to be involved in molecular interactions with rhodopsin during transport, including the interaction of nuclear distribution protein C (nudC) with rhodopsin that was first described in Xenopus laevis. We found that the interaction of nudC and rhodopsin is conserved in mammalian retina. This interaction is direct and aberrant expression of nudC results in subcellular localization of rhodopsin. We show for the first time that nudC …
The Weight Of Social Relationships: Social Network Analysis In An Adult Weight Loss Program, Alena Borgatti
The Weight Of Social Relationships: Social Network Analysis In An Adult Weight Loss Program, Alena Borgatti
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Adult behavioral obesity interventions often show improved attendance and weight loss when delivered in a group, as opposed to individual, therapy format. However, research on the exact mechanisms through which group therapy confers additional weight loss is lacking. Pediatric obesity interventions have recently begun to utilize social network analysis (SNA) to identify structural ties that may improve adherence and weight loss; however, this research is limited and has yet to be replicated in an adult weight loss program. The current study is the first to evaluate social networks in an adult behavioral weight loss intervention. Four weight loss groups were …
Social Support And Self-Care Efficacy As Mediators Of Racial Disparities In Diabetes Health In Older Adults, Wesley Browning
Social Support And Self-Care Efficacy As Mediators Of Racial Disparities In Diabetes Health In Older Adults, Wesley Browning
All ETDs from UAB
Diabetes is a health problem that affects millions of Americans annually, and Black Americans have a higher prevalence with more complications than White Americans. A disparity exists between Black and White older adults living with diabetes in distress related to symptoms, treatment, and complications associated with the disease. Additionally, there are differences in levels of performing diabetes self-care behaviors between Blacks and Whites. One series of factors that may predict better diabetes self-care and diabetes distress in older adults are self-care efficacy and components of social support. This study used linear regression models to predict racial differences between Blacks and …
Peruvian Medical Students' Attitudes Toward People With Disabilities, Shane Daniel Burns
Peruvian Medical Students' Attitudes Toward People With Disabilities, Shane Daniel Burns
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Patients with disabilities often interpret health care providers’ skills and facilities inadequate, are denied health care services, and report poor treatment in the medical setting. Key stakeholders in reforming this process are medical students, a demographic that currently provides services for patients with disabilities and will shape tomorrow’s health care systems. Past research has demonstrated that medical students often hold negative attitudes toward people with disabilities with much of this research being conducted in the developed world and none in Latin America. As a result, this study pursued to understand Peruvian medical students’ attitudes toward people with disabilities and how …
Non-Surgical Correction Of Anterior Open Bites Using Temporary Anchorage Devices, Kimberly Spencer Butts
Non-Surgical Correction Of Anterior Open Bites Using Temporary Anchorage Devices, Kimberly Spencer Butts
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Objective: The purpose of this study is to determine the skeletal, dental and soft tissue effects that occur as a result of maxillary posterior TAD intrusion; to compare treatment outcomes of growing patients to a growing matched control group; and to present a simplified TAD intrusion technique. Methods: This is a retrospective cohort study using lateral cephalometric radiographs of 16 (5 male, 11 female, average age 38y 4m) non-growing patients and 16 (5 male, 11 female, average age 13y 11m) growing patients with anterior open bite malocclusions treated with temporary anchorage devices (TADs) to intrude the maxillary posterior segments. Growing …
Towards Safeguarding Users Against Phishing And Ransomware Attacks, Arsh Arora
Towards Safeguarding Users Against Phishing And Ransomware Attacks, Arsh Arora
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Over the past decade, malicious software (malware) attacks have skyrocketed and increased at a considerably faster pace than predicted. The variety in the number of malware categories is one of the contributing factors to this rapid insurgence. According to Microsoft statistics, a range of 300,000-400,000 malware binaries is observed on average per day. With this increase, there is an unmet need for innovative approaches to detect new malware, as current nomenclature is not equipped to handle the prevention against continuous growth. Developing appropriate preventive measures to stop these malware attacks has been an ongoing struggle for security experts. The most …
Bioactive Materials: Ion Release & Recharge, Wear, Gloss & Hydroxyapatite Formation, Mohammed Badahman
Bioactive Materials: Ion Release & Recharge, Wear, Gloss & Hydroxyapatite Formation, Mohammed Badahman
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Introduction : Dental caries is one of the most prevalent chronic diseases 1. Unfortunately, there have been numerous failures with the treatment rendered, the materials used and how they are used. One significant cause for dental restoration failure is secondary caries and the need to replace the existing restoration. It has been reported that more than half of the restorations placed have been replaced because of recurrent caries. New materials and techniques have been developed to enhance adhesives in dentistry and improve the bonded interface however that interface still remains the weakest component of composite restorations. Marginal degradation and the …
Modeling Stock Prices With Differential Equations, Jessica Barnett
Modeling Stock Prices With Differential Equations, Jessica Barnett
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Forecasting the stock market has long been subject to speculation, especially after the global financial crisis in 2008. In this thesis, we formulate a predictive model of the trend of a chosen stock that is derived from verifiable economic tendencies (absent appropriate economic laws) that interact through a system of nonlinear delay differential equations. The system is populated inversely from current economic data and solved numerically using MATLAB. As a result, we are able to use the forecasted trend to estimate a stock’s drift in order to also incorporate the randomness of the stock market. Lastly, we compare the predictions …
Role Of Developmental Protein, Nudc, In The Retina, Skyler Boehm
Role Of Developmental Protein, Nudc, In The Retina, Skyler Boehm
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Rod photoreceptors are the most prominent light sensitive cell in the retina of most mammals. The outer segments of photoreceptors contain the cellular machinery necessary for phototransduction to occur. The process of generating the phototransduction components occurs in the inner segment before being trafficked to the outer segment. These processes are highly regulated and require many different trafficking proteins and chaperones. The developmental protein nuclear distribution gene C (nudC) was found to be present in the photoreceptor, but its function is yet to be determined. Here we confirm that nudC is present in the retina and necessary in the photoreceptors. …