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Articles 1 - 30 of 136
Full-Text Articles in Medicine and Health Sciences
G Protein-Coupled Inwardly-Rectifying Potassium (Girk) Chanels Mediate Entrainment Of Circadian Rhythms, Lauren Marie Hablitz
G Protein-Coupled Inwardly-Rectifying Potassium (Girk) Chanels Mediate Entrainment Of Circadian Rhythms, Lauren Marie Hablitz
All ETDs from UAB
Circadian rhythms are 24-hour cycles in biological and behavioral processes. These cycles enable an organism to predict changes in its environment, like changes in food availability and seasonality. Although endogenously driven, these rhythms can entrain or synchronize to daily changes in the environment, allowing the animal to adapt. One way entrainment occurs is shifts in circadian phase following the presentation of nonphotic, or non-light, stimuli, such as exercise, arousal, or stress at certain times of day. The molecular mechanisms underlying nonphotic entrainment are poorly understood - specifically, how nonphotic cues alter excitability within the suprachiasmatic nucleus (SCN) of the hypothalamus, …
The Investigation Of Quality Of Life, Perceived Disease Severity, And Adherence In Patients With The G551d Mutation Receiving Ivacaftor Therapy, Heather Young Hathorne
The Investigation Of Quality Of Life, Perceived Disease Severity, And Adherence In Patients With The G551d Mutation Receiving Ivacaftor Therapy, Heather Young Hathorne
All ETDs from UAB
Cystic fibrosis (CF), a genetic disorder, is a chronic life threatening illness that affects 30,000 adults and children in the United States and 70,000 worldwide. Treatment for CF is complex and consuming, consisting of multiple time intensive regimens. The therapy regimen has been descried as extraordinary when compared even to therapy regimens for other chronic illnesses. Oral and nebulized medication therapy, airway clearance therapy, pancreatic enzyme replacement therapy and vitamin /nutritional supplements are all required for the multiorgan treatment regimen for CF. Daily prescribed therapy can include as many as 40-50 pills, breathing treatments lasting up to tow hours a …
Zebrafish Wnt9b Patterns The First Pharyngeal Arch Into D-I-V Domains And Promotes Anterior-Medial Outgrowth, Henry Jackson
Zebrafish Wnt9b Patterns The First Pharyngeal Arch Into D-I-V Domains And Promotes Anterior-Medial Outgrowth, Henry Jackson
All ETDs from UAB
The secondary mouth and its associated face and jaws were an important evolutionary adaptation in the vertebrate lineage. The secondary mouth is formed from facial prominences including the fronto-nasal prominence and the 1st pharyngeal-arch derived maxillary and mandibular prominence. Cranial neural crest cells within these prominences give rise to the connective tissues of face and jaws, and strict spatio-temporal regulation of cranial neural crest cell fate patterning and subsequent prominence outgrowth is vital to normal facial development. Oral-facial clefting (OFC) is a common morbid human birth disorder characterized by disrupted oral and craniofacial morphogenesis. Our previous studies demonstrate that a …
Defining The Role Of Trps1 In Phosphate Mediated Mineralization, Maria Kuzynski
Defining The Role Of Trps1 In Phosphate Mediated Mineralization, Maria Kuzynski
All ETDs from UAB
Mineralization is a tightly controlled bi-phasic process that occurs when crystals of calcium and phosphate (Pi) are laid down within the extracellular matrix. However, the molecular networks regulating the initiation and progression of this process have not been well characterized. Pi, as one of the components of mineral crystals and a signaling molecule that regulates expression of mineralization-related genes, is essential to the mineralization process. In our studies, we discovered a novel function for Pi in this process: Pi is sufficient to induce secretion of matrix vesicles, which support the initiation of mineralization. Furthermore, we determined that this induction is …
The Role Of Ribosome Biogenesis In Exercise-Induced Skeletal Muscle Anabolism In Aging, Michael Stec
The Role Of Ribosome Biogenesis In Exercise-Induced Skeletal Muscle Anabolism In Aging, Michael Stec
All ETDs from UAB
Numerous chronic medical conditions, as well as normal aging result in a significant loss of skeletal muscle mass. This has profound effects on quality of life and can increase the risk of all-cause mortality. Currently, the most potent treatment for reversing the loss of muscle mass is resistance exercise training (RT); however, the human muscle fiber growth (hypertrophy) response to this treatment is quite variable, and older adults do not respond as favorably to this treatment as younger adults. The focus of this dissertation is to elucidate the role that ribosome biogenesis plays in regulating the RT-induced hypertrophic response. We …
Characterizing The Nuclear Import And Functions Of Cystin, The Ciliary Protein Disrupted In The Cpk Mouse Model Of Recessive Polycystic Kidney Disease, Jacob Asher Watts
Characterizing The Nuclear Import And Functions Of Cystin, The Ciliary Protein Disrupted In The Cpk Mouse Model Of Recessive Polycystic Kidney Disease, Jacob Asher Watts
All ETDs from UAB
Autosomal recessive polycystic kidney disease (ARPKD; MIM 263200) is a ma-jor cause of pediatric morbidity and mortality. Typically, orthologous animal models are the mainstay for pathogenic studies of human diseases. However, gene-targeting of Pkhd1, the mouse ortholog of the ARPKD gene, results in mutants with little or no kidney disease. In contrast, disruption of the non-orthologous gene, Cys1, in the cpk mouse model closely phenocopies human ARPKD. We speculate that this phenotypic similarity suggests that the Pkhd1 and Cys1 genes encode proteins (FPC and cystin, respectively) that share, at least in part, common molecular pathways. Our laboratory, as well as …
C-Reactive Protein, Autoimmunity, And Inflammation In The Central Nervous System, Tyler T. Wright
C-Reactive Protein, Autoimmunity, And Inflammation In The Central Nervous System, Tyler T. Wright
All ETDs from UAB
C-reactive protein (CRP) is an acute phase reactant whose blood concentration rises in response all types of inflammation. And while CRP is widely used as a clinical marker of inflammation, it has several biological functions, e.g. activation of the classical complement cascade and binding Fcγ receptors in order to mediate multiple immune processes. The full extent of CRP’s physiological activities has not yet been fully elucidated, but there is significant evidence to establish that CRP plays an important role in the onset and progression of autoimmune disease. Seminal work from our lab showed that human CRP, hepatically expressed in transgenic …
Nonsense Suppression In A Cftr Mouse Model And Analysis Of Animo Acids Inserted At Cftr Premature Termination Codons In Mammalian Cells, Xiaojiao Xue
All ETDs from UAB
A nonsense mutation introduces a premature terminations codon (PTC) into an open reading frame (ORF) upstream of a normal stop codon and results in truncated protein production. In frame PTCs account for ~11% of all mutations that cause human genetic diseases. To treat PTC-associated disorders, one approach is to use drugs that facilitate the insertion of amino acids carried by near-cognate aminoacyl-tRNAs at PTCs. Aminoglycosides were shown to suppress nonsense mutations and restore full-length protein production. This process is also termed as readthrough. However, their low efficiency and their potential to induce ototoxicity and nephrotoxicity limits their long-term application for …
Impact Of Medicare Part D Coverage Gap On Medicare Beneficiaries With Copd: Adherence, Healthcare Resource Use, And Cost, Yanni Fan Yu
Impact Of Medicare Part D Coverage Gap On Medicare Beneficiaries With Copd: Adherence, Healthcare Resource Use, And Cost, Yanni Fan Yu
All ETDs from UAB
Medicare Part D provides prescription drug coverage for beneficiaries to support their pharmacological treatment; however, the complex deductible structure within benefit plans creates a major coverage gap and unexpected consequences. Some evidence has demonstrated reduced adherence resulting from the coverage gap; however, little research has evaluated the effect on healthcare resource use (HRU) and cost, and no studies have been conducted for beneficiaries with chronic obstructive pulmonary disease (COPD). This study examined the impact of the coverage gap on medication adherence as well as healthcare resource use and medical cost among beneficiaries with COPD. Claims data based on a 5% …
Count Models With Multiple Inflations, Arvind Tripathi
Count Models With Multiple Inflations, Arvind Tripathi
All ETDs from UAB
The goal of this research is to develop new statistical models for the analysis of count data even if data exhibit over dispersion or under dispersion and has multiple inflated counts. Although many statistical models are available for the analysis of count data, there is no available statistical model that can address the presence of more than expected multiple counts together with over/under dispersion. In our first paper, we develop a multiple-inflation negative binomial (MINB) model and use the expectation maximization (EM) algorithm along with a numerical optimization to obtain maximum likelihood estimates. We applied the one step smoothly clipped …
Dna Methylation Regulates Neuronal Synaptic Scaling And Intrinsic Membrane Excitability, Jarrod P. Meadows
Dna Methylation Regulates Neuronal Synaptic Scaling And Intrinsic Membrane Excitability, Jarrod P. Meadows
All ETDs from UAB
Learning and memory rely on long-lasting, experience-dependent adaptations in synaptic and non-synaptic forms of neuronal plasticity. Previous evidence implicates transcriptional and epigenetic mechanisms, including DNA cytosine methylation, as critical regulators of site-specific, Hebbian alterations in synaptic efficacy such as long-term potentiation (LTP) and long-term depression (LTD). However, whether DNA methylation modulates cell-wide, non-Hebbian homeostatic adaptations like synaptic scaling and intrinsic plasticity (IP) is unclear. Whereas synaptic scaling involves bidirectional changes in postsynaptic receptor density in response to chronic alterations in neuronal activity, IP involves the activity-dependent attunement of passive and/or active membrane properties that govern action potential (AP) firing. This …
Non-Compliance In Clinical Trials: The Perils Of Statistical Methods, Peter Drew Merrill
Non-Compliance In Clinical Trials: The Perils Of Statistical Methods, Peter Drew Merrill
All ETDs from UAB
All clinical trials must deal with protocol deviations that occur during the course of the study. One of the most important deviations is non-compliance to treatment assignment. Intention to treat (ITT) is the most commonly employed method to deal with non-compliance in a clinical trial; however, it provides biased estimates of the effect of receiving the treatment. Other methods such as per protocol (PP) and as treated (AT) provide alternatives to ITT. PP and AT, assume an all-or-nothing compliance situation. However, the possibility of being partially compliant to a treatment is common. We investigate possible approaches to incorporating partial compliance …
Gaba(A) Receptor Trafficking And Localization In Schizophrenia, Toni Marie Mueller
Gaba(A) Receptor Trafficking And Localization In Schizophrenia, Toni Marie Mueller
All ETDs from UAB
Mechanisms underlying the complex etiology of schizophrenia have long been a subject of scientific inquiry. Early investigations focused on identifying functional deficits in dopaminergic and glutamatergic neurotransmission, but evidence for disrupted GABAergic signaling has also emerged. Recent studies from our lab have identified disrupted N-glycosylation of glutamate receptor and transporter subunits and abnormal subcellular distribution of glutamate receptor subunits, suggesting a potential functional consequence of perturbed N-glycosylation in schizophrenia. N-glycosylation is the posttranslational enzymatic attachment of an oligosaccharide precursor to a protein. This modification plays a significant role in protein processing in the ER and Golgi, and is known to …
Examining Parental And Neighborhood Factors As Moderators In A Youth Violence Prevention Pilot Study, Kendra Piper
Examining Parental And Neighborhood Factors As Moderators In A Youth Violence Prevention Pilot Study, Kendra Piper
All ETDs from UAB
Youth violence is a significant and prevalent public health concern in the United States. Adolescents and young adults have the highest rates of violent crime perpetration and victimization. Youth violence is a complex problem involving multiple levels of influence that interact to diminish or increase risk and protective factors in high risk communities. Family and neighborhood factors have emerged as prominent influences on the risk of violent and delinquent behavior. Approaches to reducing risk behaviors in adolescence have moved beyond traditional risk-factor reduction to emphasize the importance of enhancing protective factors. Positive youth development programs have been found to be …
In- Vitro Wear Of Four Cad-Cam Materials In The Uab Wear Simulating Device, Ritika Bansal
In- Vitro Wear Of Four Cad-Cam Materials In The Uab Wear Simulating Device, Ritika Bansal
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In- vitro Wear of Four CAD- CAM Materials in the UAB Wear Simulating Device RITIKA BANSAL MS IN CLINICAL DENTISTRY ABSTRACT Hybrid ceramic/polymer blocks represent a new category of CAD/CAM materials that do not require heat treatment following milled fabrication and limited clinically relevant mechanical properties of these materials are available. Purpose: This study measures the hardness, flexural strength, modulus, and wear of 3 ceramic/polymer hybrid materials (LAVA Ultimate, Enamic, and Cerasmart), 2 reference glass ceramics (IPS e.max and Celtra Duo), and 1 reference composite material (Paradigm MZ100). Methods: Flexural strength specimens (n=10) (2.5 Ã 2.5 Ã 16 mm) were …
Predictive Modeling Of Ocular Surface Disease States Using Multiple Inflammatory Biomarkers, John L. Bradley
Predictive Modeling Of Ocular Surface Disease States Using Multiple Inflammatory Biomarkers, John L. Bradley
All ETDs from UAB
ABSTRACT Purpose The aim of this study was to adapt conjunctival impression cytology (CIC) and RNA isolation and processing procedures for gene expression analysis of ocular surface inflammatory biomarkers. The RNA yield and quality should be sufficient to enable quantitative real-time PCR of no less than 12 key target genes, with the goal of differentiating among dry eye groups. This study used the optimized inflammatory biomarker gene expression assay in a patient study to identify differences between dry eye and control participants. Materials and Methods CIC was used to collect conjunctival surface cells from 53 qualifying dry eye and control …
Robust Production Of Mature Ribosomal Rna Is Directly Influenced By Multiple Steps Within The Transcription Cycle, Krysta Engel
Robust Production Of Mature Ribosomal Rna Is Directly Influenced By Multiple Steps Within The Transcription Cycle, Krysta Engel
All ETDs from UAB
Cellular growth depends on the capacity for protein synthesis, and likewise ribosome biogenesis. Therefore, robust rRNA synthesis by RNA Polymerase I (Pol I) is a critical component of cell growth. The work reported in this dissertation highlights the contribution of polymerase domains and trans-acting proteins during rRNA synthesis and ribosome biogenesis. Eukaryotes utilize three homologous nuclear RNA polymerases (RNAPs) to express their genomes. The trigger loop (TL) is a well conserved region within the active site of multi-subunit RNAPs that plays a direct role during the nucleotide addition cycle. Analysis of Pol II TL mutants has suggested that catalysis is …
Characteristics And Behaviors Based On Introduction To Opioids Among Adults In Buprenorphine/Naloxone Treatment, Angela R. Gallien
Characteristics And Behaviors Based On Introduction To Opioids Among Adults In Buprenorphine/Naloxone Treatment, Angela R. Gallien
All ETDs from UAB
Buprenorphine/naloxone (BNT) is a pharmacological treatment for opioid use disorders and is available by prescription in an office-based setting from physicians with specialized training. The purpose of this study was to identify the characteristics and behaviors among adults on BNT with the intent to identify the linear combination of variables that account for the differences based on the origins of opioid use. Four opioid user groups were identified a priori: recreational users (RU); self-treaters (ST); medical users misusing (MUM); and medical users not misusing (MU). The dependent variables were mental health and mood, pain and medical problems, internal or external …
The Characterization Of Human Cytosolic Sulfotransferase 1a1: Interactions With 17Α-Ethinylestradiol, Katie Jo Glowacki
The Characterization Of Human Cytosolic Sulfotransferase 1a1: Interactions With 17Α-Ethinylestradiol, Katie Jo Glowacki
All ETDs from UAB
Human cytosolic sulfotransferases (SULTs) are a family of Phase II conjugating enzymes that facilitate the transfer of a sulfonate moiety from 3’phosphoadenosine 5’phosphosulfate (PAPS) to hydroxyl or amine groups of acceptor substrates. SULT1A1, located in many tissues throughout the human body including the liver, is important in the metabolism of many endogenous, exogenous, xenobiotic, and drug compounds. The majority of substrates for SULT1A1 are small neutral phenols including 1-naphthol and acetaminophen; however, SULT1A1 sulfates larger compounds including 17β-estradiol (E2) and raloxifene. SULT1A1 conjugates E2 with a Km of 2.3 µM and the structure of E2 is almost identical to the …
Role Of Macrophages In The Cardiomyopathy Associated With Obesity And Type 2 Diabetes, Mehak Goel
Role Of Macrophages In The Cardiomyopathy Associated With Obesity And Type 2 Diabetes, Mehak Goel
All ETDs from UAB
Obesity is a state of chronic low-grade systemic inflammation that, along with type 2 diabetes (T2D), increases the risk of developing cardiovascular disease (CVD). Despite the wealth of information on the link between macrophages and cytokines in adipose tissue and peripheral insulin resistance, their role in the pathogenesis of diabetic cardiomyopathy and cardiac diastolic dysfunction is unclear. We hypothesized that activated immune cell mediators, in particular monocytes and macrophages, are fundamental drivers of diet-induced obesity and diabetic cardiomyopathy. Herein, firstly, a diet-induced model of diabetic cardiomyopathy was developed in C57BL/6 mice by feeding a high fat diet (HFD, 45% kcal …
Evaluation Of Sample Size Re-Estimation Procedures For Non-Inferiority Designs With Time-To-Event Outcomes, Hwasoon Kim
Evaluation Of Sample Size Re-Estimation Procedures For Non-Inferiority Designs With Time-To-Event Outcomes, Hwasoon Kim
All ETDs from UAB
Study designs that allow sample size review may potentially save a study by identifying misspecified assumptions, modifying the planned sample size, and reinforcing the study’s power. Most sample size re-estimation (SSR) methods in non-inferiority trials have been developed for continuous or binary outcomes. In many medical domains studying cancer, heart failure, and other chronic diseases, most phase III trials use censored endpoints (e.g. survival or event-free survival). Non-inferiority designs have inherent complexity by the introduction of the non-inferiority margin and therefore understanding of strategies in these methods is essential. In our first paper, we detail the issues related to misspecification …
The Impact Of Cultural Competency On Patient Experience Of Care, Emily Lane Koudelka
The Impact Of Cultural Competency On Patient Experience Of Care, Emily Lane Koudelka
All ETDs from UAB
The impact of hospitals’ cultural competency on inpatient experience of care will be examined. Enhanced patient experience of care may alter an individual’s willingness to use health services, thereby increasing access and decreasing health disparities. As a result, to the extent that cultural competency influences patient experience of care, the integration of cultural competency into healthcare organizations has emerged as a critical issue for researchers, industry leaders, and policymakers. Findings from this study will inform policies, practices, and processes across the broad spectrum of healthcare industry stakeholders.
Geographic Access To Interventional Cardiology Services In Maine, James P. Rhudy Jr
Geographic Access To Interventional Cardiology Services In Maine, James P. Rhudy Jr
All ETDs from UAB
Introduction: Acute coronary syndrome is the most common cause of death in the U.S. and the world; ST segment elevated myocardial infarction is the most acute form. The preferred reperfusion therapy is immediate primary percutaneous coronary intervention at an interventional cardiology center. It is intuitive, but not known, whether delay in receipt of reperfusion therapy because of geographic distance is associated with increased coronary mortality. Even so, clinical practice guidelines recommend organizing coronary care in each community in regional systems. Hub-and-spoke has been proposed as a regionalized coronary care model. Article synthesis: The first article in this dissertation, titled Effectiveness …
An Analysis Of Selecting Personal Protective Equipment Clothing Used In Foundries, Quachel Bazile
An Analysis Of Selecting Personal Protective Equipment Clothing Used In Foundries, Quachel Bazile
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A foundry is a type of factory that deals with producing metal casting. The metals are casted in to shape by being melted into liquid and is then poured into the mold. Personal protective equipment (PPE) is worn to protect the worker from the hazard that engineering control cannot protect the worker from. A Private company wanted to evaluate their current PPE clothing to understand how well they protect a worker against molten metal splash PPE clothing was tested using the American Standard for Testing Material (ASTM) standard F955-07 entitled "Evaluating Heat Transfer through Materials for Protective Clothing upon Contact …
Modulation Of The Unfolded Protein Response To Delay Apoptosis In An Autosomal Dominant Retinitis Pigmentosa Animal Model, Yogesh Bhootada
Modulation Of The Unfolded Protein Response To Delay Apoptosis In An Autosomal Dominant Retinitis Pigmentosa Animal Model, Yogesh Bhootada
All ETDs from UAB
Retinitis pigmentosa (RP) is a group of retinal degenerative diseases characterized by the loss of rod photoreceptor cells that can be followed by cone degeneration eventually culminating in total photoreceptor cell loss. This disease affects approximately 1.5 million people worldwide and can be transmitted in an autosomal dominant (ADRP) manner accounting for nearly 30% of all RP cases. Dominant rhodopsin mutations have been divided into class I and class II based on the folding of rhodopsin protein, thermal stability, and chromophore regeneration. A threonine-17-methionine (T17M) mutation in rhodopsin is a class II mutation, characterized by a thermal instability/folding defect and …
Three-Dimensional Soft Tissue Analysis Of Facial Morphology Of A Colombian Population Compared To Adult Caucasians, Sonia Bravo-Hammett
Three-Dimensional Soft Tissue Analysis Of Facial Morphology Of A Colombian Population Compared To Adult Caucasians, Sonia Bravo-Hammett
All ETDs from UAB
Aim: The purpose of this study is to describe the facial morphology of a Colombian population with three-dimensional imaging; and comparing their facial morphology with the Caucasian to create a database for this ethnicity. Materials and Methods: The study included 170 subjects selected from the Valle University in Cali-Colombia; and 1346 Caucasian subjects selected from the Face-Base Data funded by the National Institute of Dental and Craniofacial Research. All images were taken on Natural Head Position and captured using a stereo-photogrammetric camera system (3dMDfaceTM); to obtain a three dimensional image of each patient. The subjects were between 19 to 31 …
The Alpha-Glucosidase Inhibitor Acarbose As A Calorie Restriction Mimetic To Modify Metabolic Outcomes In Mice, Rachel Ann Brewer
The Alpha-Glucosidase Inhibitor Acarbose As A Calorie Restriction Mimetic To Modify Metabolic Outcomes In Mice, Rachel Ann Brewer
All ETDs from UAB
Age-related diseases continue to be a leading cause of death. One of the only replicable methods proven to decrease age-related morbidity and mortality in multiple species is calorie restriction (CR). CR is difficult for human populations to implement, and has a number of associated risks and side effects. A CR mimetic could provide the healthspan- and lifespan-extending benefits of CR without the limitations. Acarbose (ACA), an α-glucosidase and α-amylase inhibitor approved to treat type 2 diabetes in humans, was recently identified as able to extend lifespan in healthy mice. The purpose of this research was to determine the effects of …
The Effect Of Joining A Health System On Financial Performance, Kenneth Joseph Cochran
The Effect Of Joining A Health System On Financial Performance, Kenneth Joseph Cochran
All ETDs from UAB
The rate of hospitals merging has increased significantly over the last few years. The number of hospital mergers between 2003 and 2009 averaged 55 per year, while mergers for 2010 and 2011 were 72 and 90, respectfully. This research moved beyond anecdotal reports and by using publicly reported data to not only evaluate the financial success of mergers, but also to look at other factors such as size, ownership, geography, environment (urban vs. rural), and market competitiveness to assess impacts on financial outcomes of mergers. This study examined the effect of joining a hospital system based on financial performance. Further, …
Nadph Oxidase-Derived Superoxide: A Potentiator Of Autoimmune Responses In Type 1 Diabetes, Lindsey E. Padgett
Nadph Oxidase-Derived Superoxide: A Potentiator Of Autoimmune Responses In Type 1 Diabetes, Lindsey E. Padgett
All ETDs from UAB
Type 1 Diabetes (T1D) is an autoimmune disease culminating in pancreatic β-cell destruction, inducing reactive oxygen species (ROS), pro-inflammatory cytokines, and islet-infiltrating leukocutes. Macrophages, one of the first islet-infiltrating cells in T1D, secrete ROS and pro-inflammatory cytokines, which lyse pancreatic β-cells and activate diabetogenic T cells to further propagate β-cell destruction, while autoreactive CD4 T cells recruit islet-infiltrating, pro-inflammatory, M1 macrophages, and enhance CD8 T cell cytotoxicity. We previously demonstrated the importance of NADPH oxidase (NOX)-derived ROS synthesis in T1D, as Non-obese diabetic (NOD) mice lacking NOX-derived superoxide (NOD.Ncf1m1J) exhibited a delay in spontaneous and adoptive transfer of T1D. In …
Hepatocyte Clock And Alcohol-Dependent Disruption In Glycogen Metabolism, Uduak Sunday Udoh
Hepatocyte Clock And Alcohol-Dependent Disruption In Glycogen Metabolism, Uduak Sunday Udoh
All ETDs from UAB
Chronic alcohol consumption has been shown to significantly decrease hepatic glycogen, an important storage form of energy for the body and liver. Emerging studies indicate a link between metabolism and the molecular circadian clock. Previously, we have shown that chronic alcohol consumption disrupts the liver molecular clock mechanism. However, it is not known how this alteration impacts hepatic energy (e.g., glycogen) metabolism and contributes to alcohol hepatotoxicity. This dissertation investigates the impact chronic alcohol consumption has on time-of-day-dependent oscillations of various aspects of liver glycogen metabolism, and the importance of the liver circadian clock in these metabolic alterations. Chapter 1: …