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Articles 211 - 240 of 349
Full-Text Articles in Medical Sciences
New Insights On Age-Related Hearing Loss, Judy R. Dubno
New Insights On Age-Related Hearing Loss, Judy R. Dubno
Journal of the South Carolina Academy of Science
No abstract provided.
The Effect Of Nonassociative Learning On Oxidative Stress In Caenorhabditis Elegans: A Potential Application For Alzheimer’S Disease Research, Gillian Patton
The Effect Of Nonassociative Learning On Oxidative Stress In Caenorhabditis Elegans: A Potential Application For Alzheimer’S Disease Research, Gillian Patton
Journal of the South Carolina Academy of Science
Alzheimer’s disease results in learning and memory deficits due to toxic changes in the brain caused by amyloid-β plaques and oxidative stress. Oxidative stress is caused by the overproduction of free radicals, which are uncharged molecules containing an unpaired valence electron. Nonassociative learning is a type of cognitive processing that only uses one stimulus instead of two related stimuli. Cognitive processing promotes neural growth and learning, while Alzheimer’s inhibits it. The purpose of this study was to test how nonassociative learning impacts oxidative stress and thus, if it might be considered as a potential treatment option for Alzheimer’s disease. It …
The Effect Of Flavonoid Galangin On The Cell Viability And Toxicity Of Mcf-7 Human Breast Cancer Cells Exposed To Polycyclic Aromatic Hydrocarbons (Pahs), Abhimanyu Sailesh
The Effect Of Flavonoid Galangin On The Cell Viability And Toxicity Of Mcf-7 Human Breast Cancer Cells Exposed To Polycyclic Aromatic Hydrocarbons (Pahs), Abhimanyu Sailesh
Journal of the South Carolina Academy of Science
Polycyclic aromatic hydrocarbons (PAHs) are chemical compounds ubiquitous in the environment; many of which are known human and animal carcinogen. The purpose of this study was to investigate MCF-7 epithelial breast cancer cells’ viability and toxicity following a short-term in vitro exposure to a cocktail of PAHs and benzo[a]pyrene (B[a]P) separately in the presence and absence of varying concentrations of flavonoid galangin. It was predicted that presence of galangin will completely or partially block the damaging effects of PAHs. It was hypothesized that exposing the cells to 7 µM cocktail of PAHs or 10 µM B[a]P in the presence of …
Epha4b Expression In The Craniofacial Development Of African Cichlid Fishes, Chelse Vanatter
Epha4b Expression In The Craniofacial Development Of African Cichlid Fishes, Chelse Vanatter
Journal of the South Carolina Academy of Science
Epha4b gene expression may contribute to variances in facial formation including functional differences such as nose shape and clinical conditions such as cleft palate. During craniofacial development, neural crest cells migrate to the pharyngeal arches then differentiate to form bone, muscle, and cartilage cells. The Eph/ephrin signaling pathway guides the streams of migrating neural crest cells into the pharyngeal arches; epha4b, a gene encoding an Eph receptor, contributes to this signaling pathway. To determine how epha4b expression differs between species at different developmental stages, in situ hybridization, a process that stains areas of gene expression, was performed. African cichlid fish …
The Effect Of Acetaminophen (Analgesic) And Diphenhydramine (Antihistamine) On Nociception Response Of Caenorhabditis Elegans, Heart Rate Of Eisenia Fetida, And Mortality Of Both E. Fetida And C. Elegans, Vamsi Gorrepati
Journal of the South Carolina Academy of Science
Pharmaceutical pollution continues to increase each year but its adverse effects on the environment are still largely unknown. Pharmaceuticals can enter the terrestrial ecosystem when animal manure and sewage sludge are applied to land as a fertilizer or when irrigated with contaminated water. To understand the extent to which common drugs impact the ecosystem, two commonly polluting pharmaceuticals, acetaminophen and diphenhydramine, which have been found in many cities such as Chicago, Dallas, and most notably The Great Lakes, were studied. Various concentrations were tested on E. fetida and C. elegans. Indicators such as heart rate were observed for E. …
The Effects Of Oxidative Stress On Inducing Senescence In Human Fibroblasts, Shivani Chowdhary
The Effects Of Oxidative Stress On Inducing Senescence In Human Fibroblasts, Shivani Chowdhary
Journal of the South Carolina Academy of Science
Oxidative stress, specifically from hydrogen peroxide exposure, was performed to determine if it induced senescence in cell lines such as Hela cells and primary human fibroblasts. The purpose of this experiment was to find the optimal stage, concentration, and time of exposure to induce the greatest number of senescent cells. After dividing cultures of both the Hela and human fibroblasts cells in order to reduce confluency, the cells were placed in a six well plate and exposed to hydrogen peroxide for two hours at various concentrations. The plates were checked at twenty-four-hour intervals, and then fixed with senescence associated beta-galactosidase …
Exercise Induced Laryngeal Obstruction In A Collegiate Runner: A Case Report Of A Novel Therapy, Cody Inskeep, Todd Olin, Robert Arthur
Exercise Induced Laryngeal Obstruction In A Collegiate Runner: A Case Report Of A Novel Therapy, Cody Inskeep, Todd Olin, Robert Arthur
Clinical Practice in Athletic Training
A 23-year-old male Division I distance runner presented with several years of exertional stridor (high-pitched inspiratory noise caused by airflow obstruction), previously diagnosed as exercised-induced laryngeal obstruction (EILO), a condition formerly known as vocal cord dysfunction and exercised-induced paradoxical vocal fold motion. Over the course of roughly 3 years, the patient had previously failed conventional and invasive respiratory therapies for EILO including respiratory retraining, inspiratory muscle training, reflux suppression, allergy suppression, amitriptyline, performance psychology, and injection of botulinum toxin to the larynx. At a referral center that specializes in the treatment of EILO, the patient's diagnosis was confirmed through the …
Mesenchymal Stem Cells: Sources, Clinical Applications And Outcomes For Common Musculoskeletal Conditions, Steven Boyton, Lindsey Clemensen
Mesenchymal Stem Cells: Sources, Clinical Applications And Outcomes For Common Musculoskeletal Conditions, Steven Boyton, Lindsey Clemensen
Clinical Practice in Athletic Training
Background: The clinical use of Mesenchymal Stems Cells (MSC) in musculoskeletal medicine has become increasingly recognized in the medical field as a promising treatment modality. MSCs have been defined as spindle shaped cells that are capable of rapid proliferation and self-renewal contained within several tissues including bone marrow, synovial and adipose tissue, blood and periosteum. MSCs are currently being used in clinical trials for musculoskeletal purposes including the enhancement of tissue regeneration, bone and cartilage defects and tissue repair. Currently a variety of stem cell products, methods and applications are being used which can provide many misconceptions for the most …
Best Practices In Patellar Tendinopathy Management: An Evidence To Practice Review, Christopher J. Burcal, Adam B. Rosen, Tony Taylor, Mike Nicola
Best Practices In Patellar Tendinopathy Management: An Evidence To Practice Review, Christopher J. Burcal, Adam B. Rosen, Tony Taylor, Mike Nicola
Clinical Practice in Athletic Training
Patellar tendinopathy (PT) is a degenerative condition that is common in sporting populations due to the loads placed on the tendon during dynamic activity. PT often occurs in overtraining situations; however, it may also occur in conjunction with and/or worsen through poor biomechanics, persistent inflammation, and altered movement patterns. Although sports medicine practitioners have evidence to support the prevalence of this injury, we do not have a strong base of evidence surrounding the contributing factors and pathophysiology that lead the pain and disability reported in patients with PT. The purpose of this evidence to practice review was to summarize a …
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
An Investigation Of The Order Of Applying An Emollient With A Topical Steroid In The Treatment Of Atopic Dermatitis, Andrea Conner, Ashlee Tietje
An Investigation Of The Order Of Applying An Emollient With A Topical Steroid In The Treatment Of Atopic Dermatitis, Andrea Conner, Ashlee Tietje
Journal of the South Carolina Academy of Science
In 2007, the prevalence of Atopic Dermatitis had increased two to three-fold within the last three decades and affected 15-20% of young children (Buys, 2007). Current treatment includes the use of both steroid and emollient creams. Current suggestions for the order of application are contradictory. This study aims to examine the role of the order of application of treatments for Atopic Dermatitis (AD). Hairless mice (SKH-1) were induced to a mild AD flare-up using 2,4-dinitrochlorobenzene (DNCB) and treated with either 1% hydrocortisone (Maximum Strength Cortizone 10 cream) alone, 1% hydrocortisone followed by Cetaphil (emollient), or Cetaphil followed by 1% hydrocortisone. …
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
Building Soft Nanomachines From Polydiacetylene Liposomes, Timothy W. Hanks
Building Soft Nanomachines From Polydiacetylene Liposomes, Timothy W. Hanks
Journal of the South Carolina Academy of Science
No abstract provided.
Regulation Of Prostaglandin D2 And Angiogenesis-Related Factors From Human Skin Mast Cells By Interleukin-6 And Resveratrol, Cody Cody Mchale
Regulation Of Prostaglandin D2 And Angiogenesis-Related Factors From Human Skin Mast Cells By Interleukin-6 And Resveratrol, Cody Cody Mchale
Theses and Dissertations
Mast cells are classically recognized as the effector cells of Immunoglobulin E (IgE)-mediated hypersensitivity reactions (i.e. allergic reactions). Mast cells also play an important role in the innate immune response to parasitic helminth infection. Allergic disease including allergic rhinitis, asthma, atopic dermatitis, and anaphylaxis, is a major health concern in the United States with greater than 60 million Americans suffering from allergy and asthma. In addition, mast cells have more recently been implicated in non-allergic disease including various human cancers, which will affect approximately 39.6% of U.S. men and women. Therefore, understanding the immunological and molecular mechanisms that regulate mast …
Family Planning Decisions After A Child’S Diagnosis Of Rett Syndrome: A Pilot Study, Erin E. Huggins
Family Planning Decisions After A Child’S Diagnosis Of Rett Syndrome: A Pilot Study, Erin E. Huggins
Theses and Dissertations
Rett syndrome (RTT) is a rare neurodevelopmental disorder that primarily affects females. In 99% of cases, RTT is believed to occur sporadically, or de novo. However, in rare cases, RTT can be passed down from parent to child through gonadal mosaicism or asymptomatic carrier mothers. It is known that having a child with an inherited genetic condition can lead to changes in family planning; however, little research has investigated this phenomenon in sporadic genetic conditions, such as RTT. This present study used a questionnaire to assess family planning decisions of parents of children with RTT. Forty-three percent of respondents reported …
Parental Experience With Whole Exome Sequencing Reanalysis And Its Impact On The Diagnostic Odyssey, Nicole D. Lucas
Parental Experience With Whole Exome Sequencing Reanalysis And Its Impact On The Diagnostic Odyssey, Nicole D. Lucas
Theses and Dissertations
Advances in genomic technology and an increase in the number of gene-disease associations have helped reduce the number of individuals living without a diagnosis. Whole exome sequencing (WES) analyzes the entire human exome in an attempt to determine if there is a molecular etiology for individuals who remain undiagnosed after other clinical or molecular investigations. Still, WES leaves most individuals undiagnosed, resulting in feelings of disappointment and uncertainty. Individuals who remain undiagnosed after WES can subsequently undergo WES reanalysis later due to improvements in bioinformatics, software updates, and an increase in known genedisease associations. This is the first study, to …
The Nervous System And Cancers Of The Head And Neck, Christian A. Graves
The Nervous System And Cancers Of The Head And Neck, Christian A. Graves
Theses and Dissertations
The anatomy of the head and neck is closely associated with the nervous system which plays an important role in the prognosis of head and neck cancer (HNC). However, the molecular interactions between these compartments and HNC remain poorly understood. We present a novel big data approach utilizing clinical data, sequencing, and machine learning to identify and validate potential molecular pathways by which the nervous system affects the development and progression of HNC. Our studies demonstrate across multiple datasets that perineural invasion (PNI) frequently occurs in HPV+ HNC. Furthermore, we show novel activating and missense mutations and pathways that may …
Understanding Barriers To Genetic Testing For Sickle Cell Trait: The African-American Male Perspective, Shandrea Foster
Understanding Barriers To Genetic Testing For Sickle Cell Trait: The African-American Male Perspective, Shandrea Foster
Theses and Dissertations
Research has shown a reluctance in African-American males to pursue testing for sickle cell trait. Few studies have tried to discern what barriers are contributing to this issue within the African-American male community. Research suggests a lack of knowledge may be the biggest contributing factor. This study hypothesized there would be a significant difference in knowledge of sickle cell trait based on educational level, age, and health beliefs. African-America male participants (N=116), ages 18 and over, completed a questionnaire assessing knowledge, risk perception, health beliefs, barriers, and motivating factors within the context of sickle cell trait. One-way and two-way analysis …
Assessing The Barriers To Cardiac Care In Carriers Of Duchenne And Becker Muscular Dystrophy, Lauren Renae Eekhoff
Assessing The Barriers To Cardiac Care In Carriers Of Duchenne And Becker Muscular Dystrophy, Lauren Renae Eekhoff
Theses and Dissertations
Duchenne and Becker muscular dystrophy (DBMD) are X-linked conditions due to mutations within the dystrophin gene that cause progressive muscle weakness, respiratory insufficiency, and cardiomyopathy in affected males. Approximately twothirds of women who have a son with DBMD are carriers of the condition. Carriers typically do not manifest muscular symptoms but are at risk for cardiac abnormalities such as dilated cardiomyopathies. The American Academy of Pediatrics (AAP) recommends that carriers of DBMD receive a complete cardiac evaluation by a cardiologist that includes an echocardiogram and electrocardiogram (EKG) with reevaluation every five years. According to a recent study33, as many as …
The Impact Of Communication Deficits On Puberty And Sexual Development In Adolescents On The Autism Spectrum, Ashton Wolfe
The Impact Of Communication Deficits On Puberty And Sexual Development In Adolescents On The Autism Spectrum, Ashton Wolfe
Theses and Dissertations
Transitioning into a sexually mature adult is a challenging time for both an adolescent with autism spectrum disorder (ASD) and his or her family. Sexual development begets challenges due to the demands it places on the social and communication skills needed to explore developmental changes that are occurring physically, emotionally and hormonally. A diagnosis of ASD is largely established by quantifying impediments in social and communication skills through observation. With deficits in these skills, one can assume that social and communication difficulties can create obstacles in the sexual development of affected individuals. Our study used quantitative and qualitative measures to …
Is Current Fragile X Syndrome Counseling Enough? Expanding The Clinical Phenotype Of Fragile X In Premutation And Intermediate Allele Carriers, Zahra Saadat Girnary
Is Current Fragile X Syndrome Counseling Enough? Expanding The Clinical Phenotype Of Fragile X In Premutation And Intermediate Allele Carriers, Zahra Saadat Girnary
Theses and Dissertations
Fragile X syndrome (FXS) is caused by a triplet repeat expansion on the FMR1 gene. Individuals with >200 repeats have FXS, while individuals between 45-54 and 55- 200 repeats have the FMR1 intermediate allele and premutation, respectively. FXS is characterized by autism and intellectual disability while the premutation is associated with fragile X-associated tremor/ataxia syndrome (FXTAS) and fragile X-associated primary ovarian insufficiency (FXPOI). However, recent research shows that the premutation may be associated with psychiatric manifestations. Currently, there are no established clinical features associated with the intermediate allele. This study sought to 1) study knowledge regarding FXTAS, FXPOI, as well …
Discussing History Of Mental Illness During Prenatal Genetic Counseling: Patient Interest And Comfort, Sarah Nimrichter
Discussing History Of Mental Illness During Prenatal Genetic Counseling: Patient Interest And Comfort, Sarah Nimrichter
Theses and Dissertations
Purpose: This study aimed to explore patient interest in and comfort with discussing a personal and/or family history of mental illness with a genetic counselor during a prenatal genetic counseling session. Methods: Participants included pregnant women who met with a genetic counselor for routine prenatal screening/testing counseling at Palmetto Health USC Medical Group Department of OB/GYN. Following their appointment, they were given a copy of the invitation to participate, questionnaire, and mental health resource page by the genetic counselor who performed their genetic counseling. Results: Forty participants completed questionnaires. 70% of participants indicated some level of interest in discussing mental …
Role Of Mir-489 In Her2 Positive Breast Cancer, Yogin Patel
Role Of Mir-489 In Her2 Positive Breast Cancer, Yogin Patel
Theses and Dissertations
Human epidermal growth factor receptor 2 (HER2 or ErBb2) is a receptor tyrosine kinase overexpressed in 20-30% of breast cancers and associated with poor prognosis and outcome. Dysregulation of several micro RNAs (miRs) plays a key role in breast cancer progression and metastasis. In this study, we screened and identified miRs dysregulated in HER2-positive breast cancer cells. Molecular study demonstrated that miR-489 was specifically downregulated by the HER2-downstream signaling, especially the MAPK pathway. Restoration or overexpression of miR-489 in HER2-positive breast cancer cells significantly inhibited cell growth in vitro and decreased the tumorigenicity and tumor growth in xenograft mice. Mechanistically, …
Advanced Clearing Methods And Imaging Techniques For Optimized Three- Dimensional Reconstruction Of Dense Tissues, Caleb A. Padgett
Advanced Clearing Methods And Imaging Techniques For Optimized Three- Dimensional Reconstruction Of Dense Tissues, Caleb A. Padgett
Theses and Dissertations
Advances in tissue clearing have allowed biological and biomedical researchers to image entire segments of tissue and generate three-dimensional reconstructions, allowing for a better understanding of the structural and morphological characteristics of large tissues. This study compared three commonly utilized clearing methods and analyzed their effectiveness in increasing imaging depth for three-dimensional reconstruction of large tissue segments. Mouse heart, mouse brain, mouse colon, and embryonic chick tissues were cut into thick sections, cleared and immunolabeled with an antibody specific to each tissue type, and imaged using a confocal microscope. The results of this study concluded that most tissues cleared by …
Effect Of Resveratrol On The Development Of Eczema, Christopher Carlucci
Effect Of Resveratrol On The Development Of Eczema, Christopher Carlucci
Theses and Dissertations
Atopic dermatitis is a type of eczema characterized by chronic inflammation of the skin, affecting millions of people worldwide. Resveratrol, a naturally occurring stilbenoid, is widely believed to exhibit beneficial effects on a host of chronic diseases. Although some previous studies have aimed to evaluate the effects of resveratrol on the pathogenesis of atopic dermatitis, this relationship remains ill-defined. We have previously established that mast cell activation, remodeling, and cellular infiltration in the hypodermis all begin prior to the IgE-mediated immune response in an atopic dermatitis mouse model, and that this early pathogenesis is directly related to an increase in …
Integrating Genetic Counseling And Testing In The Pediatric Oncology Setting: Parental Attitudes And Influencing Factors, Lauren Renee Desrosiers
Integrating Genetic Counseling And Testing In The Pediatric Oncology Setting: Parental Attitudes And Influencing Factors, Lauren Renee Desrosiers
Theses and Dissertations
Cancer predisposition syndromes (CPS), caused by germline pathogenic variants in tumor suppressor genes and oncogenes, are genetic conditions that put an individual at increased risk to develop cancer. It is estimated that 10-15% of children with cancer have an underlying CPS. Although genetic testing for these conditions has become routine in the adult setting, incorporation of germline genomic technologies into pediatric cancer care has not occurred as rapidly. The purpose of this study is to assess desire for genetic counseling and testing services among parents of children with cancer to provide parental insight in the incorporation of genomic technologies in …
Role Of Cox2 In Cellular Senescence, Mingxiao Feng
Role Of Cox2 In Cellular Senescence, Mingxiao Feng
Theses and Dissertations
The survivors of childhood cancers are often associated with adverse late effects including hypoplasia, fatigue, and infertility, which are characteristics of aging. However, the underlying mechanisms of the late effects of chemotherapy are still elusive. We have found that transgenic cyclooxygenase-2 (COX2) expression causes premature aging phenotypes. Since COX2 expression is highly induced by various chemotherapeutic agents, we further investigated the possible link between COX2 and the late effects of chemotherapy. Treatment of juvenile wild-type mice with doxorubicin (DOX), an anthracycline-based chemotherapeutic agent, resulted in premature aging phenotypes and escalated cellular senescence level in various tissues. We found that tissue …
Spiritual Care In Cancer Genetic Counseling: Patient Perceptions Of Methods, Christopher Michael Spencer
Spiritual Care In Cancer Genetic Counseling: Patient Perceptions Of Methods, Christopher Michael Spencer
Theses and Dissertations
The integration of spirituality into medical care is a growing area of debate among professionals, involving a delicate balance between serving patients who may benefit from this without alienating those who would not. To date, little research has targeted spirituality in cancer genetic counseling, particularly concerning the various methods a genetic counselor can use to address spirituality with their patients. A paper questionnaire was created and distributed to patients following their cancer genetic counseling appointments to gain insight on their perception of these methods. Fifty-two participants completed this questionnaire. The eight different spiritual integration methods presented each showed positive responses …
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
Optimizing Sperm Collection Procedures In Zebrafish, Madelyn B. Wasden, Rachel L. Roberts, April Delaurier
Optimizing Sperm Collection Procedures In Zebrafish, Madelyn B. Wasden, Rachel L. Roberts, April Delaurier
Journal of the South Carolina Academy of Science
Zebrafish are a highly-valued model organism used for developmental biology research. Zebrafish can be used for genetic manipulation and hence, many mutant and transgenic lines exist. It is impractical to maintain lines of adult zebrafish, due to resource constraints and the need to continuously produce new generations. Therefore, a practical way to preserve zebrafish lines is to freeze sperm and retrieve lines using in vitro fertilization of fresh eggs. Most existing in vitro protocols used by research labs have a wide variety of fertilization rates (ranging from 0% to >90%). Due to this variability, lines may be at risk of …