Biology Commons^™

Strength Assessment Protocol In Pre-Professional Ballet Dancers, Simona Di Nardo, Ivan Mascio

Clinical Practice in Athletic Training

Purpose: This research project aimed to investigate the effects, particularly regarding the ability to generate force, that could emerge following a ballet class. The purpose of the study was to support the thesis that low levels of fitness and performance in professional and amateur dancers, should be considered a significant gap that needs to be addressed. Larger will be the gap and bigger will be the demand of a dancer to be prepared athletically. While the shorter the gap and more efficient the artistic side of the dance performance will be. As a result, a stronger and healthier body will …

Population Variability Across Geographical Ranges: Perspectives And Challenges, Cleber Ten Caten, Tad Dallas

Faculty Publications

Populations fluctuate over time and across geographical space, and understanding how different factors contribute to population variability is a central goal in population ecology. There is a particular interest in identifying trends of population variability within geographical ranges as population densities of species can fluctuate substantially across geographical space. A common assumption is that populations vary more near species geographical range edges because of unsuitable environments and higher vulnerability to environmental variability in these areas. However, empirical data rarely support this expectation, suggesting that population variability is not related to its position within species geographical ranges. We propose that performance …

Introductory Biology Ii Lab Manual, Melissa A. Storm

OER Collection

Explore the diversity of life on the planet Earth with a focus on organisms found in the Southeast of the United States, examine the evolutionary relationships between organisms and the ways in which scientists are currently expanding their understanding of those relationships every day through this BIO 102 Lab Manual

How to use this book: 

Each unit of this book represents the information you will learn during a week of lab class. Within each unit you will find types of information to help you learn the content.

At the beginning of each unit, you will find lists of reinforced skills …

Examining The Distribution And Predictability Of Population Dynamics Across Geographic Space, Cleber Ten Caten

Theses and Dissertations

Populations occupy different regions of the geographic space and may experience distinct conditions over time that can cause fluctuations in their number of individuals. Environmental conditions, dispersal events, and resource availability are some of the factors that influence populations. A central goal in ecology has been to develop generalizations about how these factors that affect population dynamics are structured in geographic space. However, limited knowledge about where species occur and a lack of long-term surveys of populations has hindered the development, and validation, of such generalizations. In this dissertation, I use a combination of observational data, simulations, and experimental approaches …

Involvement Of Integrated Stress Response In Primary And Secondary Dystonia, Tricia Aleena Dulice Simon

Theses and Dissertations

ABSTRACT Dystonia is the third most common movement disorder in the United States of America , the first two being essential tremor and Parkinson’s disease. Gaining mechanistic knowledge about pathobiology of dystonia is essential for development of effective therapies. As the only therapies currently available are invasive procedures such as deep brain stimulation (DBS) or frequent botulinum toxin injections, it is critical to understand the underlying molecular mechanisms leading to dystonia. A maladaptive integrated stress response (ISR) involving dysregulation of the eukaryotic translation initiation factor  (eIF2) mediated signaling is observed in DYT-PRKRA patient cells. Mutations in PRKRA gene, which …

Is Increased Mutation Driving Genetic Diversity In Dogs Within The Chornobyl Exclusion Zone?, Megan N. Dillon, Allison N. Dickey, Reade B. Roberts, Jennifer A. Betz, Timothy Mousseau, Norman J. Kleiman, Matthew Breen

Faculty Publications

Environmental contamination can have lasting impacts on surrounding communities, though the long-term impacts can be difficult to ascertain. The disaster at the Chornobyl Nuclear Power Plant in 1986 and subsequent remediation efforts resulted in contamination of the local environment with radioactive material, heavy metals, and additional environmental toxicants. Many of these are mutagenic in nature, and the full effect of these exposures on local flora and fauna has yet to be understood. Several hundred free-roaming dogs occupy the contaminated area surrounding the Chornobyl Nuclear Power Plant, and previous studies have highlighted a striking level of genetic differentiation between two geographically …

Is Increased Mutation Driving Genetic Diversity In Dogs Within The Chornobyl Exclusion Zone?, Megan N. Dillon, Allison N. Dickey, Reade B. Roberts, Jennifer A. Betz, Timothy Mousseau, Norman J. Kleiman, Matthew Breen

Faculty Publications

Environmental contamination can have lasting impacts on surrounding communities, though the long-term impacts can be difficult to ascertain. The disaster at the Chornobyl Nuclear Power Plant in 1986 and subsequent remediation efforts resulted in contamination of the local environment with radioactive material, heavy metals, and additional environmental toxicants. Many of these are mutagenic in nature, and the full effect of these exposures on local flora and fauna has yet to be understood. Several hundred free-roaming dogs occupy the contaminated area surrounding the Chornobyl Nuclear Power Plant, and previous studies have highlighted a striking level of genetic differentiation between two geographically …

Progerin Can Induce Dna Damage In The Absence Of Global Changes In Replication Or Cell Proliferation, Liza A. Joudeh, P. Logan Schuck, Nina M. Van, Alannah J. Dicintio, Jason A. Stewart, Alan S. Waldman

Faculty Publications

Hutchinson-Gilford Progeria Syndrome (HGPS) is a rare genetic condition characterized by features of accelerated aging, and individuals with HGPS seldom live beyond their mid-teens. The syndrome is commonly caused by a point mutation in the LMNA gene which codes for lamin A and its splice variant lamin C, components of the nuclear lamina. The mutation causing HGPS leads to production of a truncated, farnesylated form of lamin A referred to as "progerin." Progerin is also expressed at low levels in healthy individuals and appears to play a role in normal aging. HGPS is associated with an accumulation of genomic DNA …

Mutation In Prkra Results In Cerebellar Abnormality And Reduced Elf2Α Phosphorylation In A Model Of Dyt-Prkra, Samuel B. Burnett, Allison M. Culver, Tricia A. Simon, Taylor Rowson, Kenneth Frederick, Kristina Palmer, Stephen A. Murray, Shannon W. Davis

Faculty Publications

Variants in the PRKRA gene, which encodes PACT, cause the early-onset primary dystonia DYT-PRKRA, a movement disorder associated with disruption of coordinated muscle movements. PACT and its murine homolog RAX activate protein kinase R (PKR; also known as EIF2AK2) by a direct interaction in response to cellular stressors to mediate phosphorylation of the α subunit of eukaryotic translation initiation factor 2 (eIF2α). Mice homozygous for a naturally arisen, recessively inherited frameshift mutation, Prkra^lear-5J, exhibit progressive dystonia. In the present study, we investigated the biochemical and developmental consequences of the Prkra^lear-5J mutation. Our results indicated that the …

Impacts Of Ing4-Deficiency On Hematopoietic Stem And Progenitor Cells & Characterizing The Concerns Of Novice Stem Graduate Teaching Assistant, Georgina Alice Anderson

Theses and Dissertations

The hematopoietic compartment is tasked with the establishment and maintenance of the entire blood program in steady-state and in response to stress. Key to this process are hematopoietic stem cells (HSCs), which possess the unique ability to self-renew and differentiate to replenish blood cells throughout an organism’s lifetime. Recent work has illustrated the vast mechanisms involved in regulating stress-induced hematopoiesis, including cytokine-mediated lineage bias, gene signature changes in aged HSCs associated with chronic inflammation, the impact of clonal hematopoiesis and stress tolerance. Inhibitor of Growth 4 (Ing4) has been identified as a critical regulator of HSC homeostasis. We show that …

Plankton Dynamics In A Temperate Estuary:Size Structure And Trophic Implications, Nayan Mallick

Theses and Dissertations

Estuarine ecosystems provide goods and services to around 45% of the entire human population. In recent times, these ecosystems have been severely affected by multiple stressors such as pollution, eutrophication, harmful algal blooms, sea level rise, and, most importantly, climate change. Increasing temperature associated with climate change can have pervasive impacts throughout the ecosystem’s functions and processes. Plankton, a conspicuous member of estuarine food web, are among the first to respond to the changes in temperature due to their high sensitivity to changing environmental conditions.

In this dissertation, I investigated the plankton dynamics in an estuarine ecosystem through a combination …

Table Of Contents

Journal of the South Carolina Academy of Science

No abstract provided.

Utilizing Lentinula Edodes And Pleurotus Ostreatus To Decrease Saccharomyces Cerevisiae Growth With Oxidative Stress Present As A Model For Cancer, Abdullah Amir

Journal of the South Carolina Academy of Science

Cancer is the second leading cause of death in the United States, and its effects can be worsened when high levels of oxidative stress are present. Lentinula edodes and Pleurotus ostreatus are two edible mushroom species that have been shown to contain many anticancer agents. However, the effects of these mushrooms have not been tested on cancer in the presence of oxidative stress. Therefore, the purpose of the present study was to test the effectiveness of L. edodes and P. ostreatus in reducing Saccharomyces cerevisiae growth when oxidative stress was present. It was hypothesized that these two mushroom species would …

Investigating The Synergistic Antibacterial Effects Of Ulva Lactuca And Fucus Vesiculosus Extracts On The Growth Of Staphylococcus Epidermidis, Bryan Lee

Journal of the South Carolina Academy of Science

This study investigates the antibacterial properties of extracts from marine macroalgae, Ulva lactuca (green algae) and Fucus vesiculosus (brown algae), individually and in combination, with a focus on combating antibiotic-resistant pathogens. The escalating challenge of antibiotic resistance requires the exploration of alternative antimicrobial agents derived from natural sources. Utilizing the agar well diffusion method, the study evaluates the inhibitory effects of the algae extracts on Staphylococcus epidermidis. Chloramphenicol serves as the positive control, while 5% dimethyl sulfoxide acts as the negative control. The combination of Ulva lactuca and Fucus vesiculosus extracts did not exhibit a significantly greater antibacterial effect than …

The Effect Of Different Vegetable Oils (Macadamia Nut Oil And Walnut Oil) On The Coefficient Of Friction As A Finish For Oak Wood, Lee Dillon

Journal of the South Carolina Academy of Science

Slipping due to insufficient friction with flooring can cause fatal injuries in workplaces and homes. Oak wood flooring is commonly used in construction to build these environments. In the manufacturing process, wood finishing is conducted at the end of the process to strengthen the properties and longevity of the wood, although it could impact the coefficient of friction (COF) causing slip falls. Vegetable oils, such as macadamia nut and walnut oils, used as wood finishes have gained prominence due to their beneficial aspects to the environment. However, little is known about their effectiveness as a safe coating for wood floors. …

A Comparative Study To Predict Ovarian Cancer, Binadie Wickramasinghe, Gloria Regisford

Journal of the South Carolina Academy of Science

Ovarian cancer is considered the fifth most common cancer type among females in the United States. Furthermore, ovarian cancer accounts for 25% of all gynecologic cancers, and usually, this cancer is diagnosed at a late stage. A patient can live at least five years longer if ovarian cancer is diagnosed early. Therefore, the early diagnosis of ovarian cancer is essential. This study aims to classify ovarian cancer using biomarkers such as ovarian cancer antigen (CA125), tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6), human epididymis protein 4 (HE4), and anti-TP53 antibodies. Rising or persistent CA125 blood levels provide a highly …

Cortisol And Alpha-Synuclein Stability In Saliva Under Varying Storage And Handling Conditions, Mo Zheng, Sujata Srikanth, Jeremiah Carpenter, Delphine Dean

Journal of the South Carolina Academy of Science

Parkinson’s disease (PD) is a progressive neurodegenerative disorder characterized by motor impairments and non-motor symptoms, significantly impacting patients' quality of life. Currently, cerebrospinal fluid (CSF) is the primary biofluid used for PD biomarker studies, notably α-synuclein, despite the invasive nature of lumbar puncture procedures. Recent work has shown that some of these PD biomarkers have been measured in saliva. As an alternative to CSF, saliva can be non-invasively self-collected by patients repeatedly over time to monitor biomarker levels. However, the stability of these biomarkers in saliva needs to be evaluated before saliva can be considered for patient self-collection studies. Therefore, …

Synergistic Inhibition Of Hiv-1 Regulatory Function Using A Dual Expression Shrna Plasmid, Christine Sanderson, William H. Jackson

Journal of the South Carolina Academy of Science

HIV infection of CD4⁺ T Helper lymphocytes results in a gradual loss of immune competence, which ultimately leads to development of the acquired immune deficiency syndrome (AIDS). HIV-1 expresses two regulatory proteins, Tat and Rev, which act to upregulate viral transcription and facilitate mRNA transport enhancing the rate of translation. Inhibition of Tat and Rev have been shown to block virus replication. Therefore, Tat and Rev represent critical key points in the virus replication cycle. This study investigated the potential of RNA interference (RNAi) to inhibit these proteins using short hairpin RNAs (shRNAs). For this, plasmids expressing shRNAs targeting …

Length-Weight And Length-Length Relationships For Common Fish And Invertebrate Species In The North Inlet-Winyah Bay Estuarine System, South Carolina, Usa, Catherine A. Friedline, Matthew E. Kimball, Bruce W. Pfirrmann, In Cha, Kayleigh B. Wolstenholme, Ryan J. Rezek

Journal of the South Carolina Academy of Science

Establishing accurate weight-length relationships (WLR) and length-length relationships (LLR) is critical for effective fisheries management and ecological research. This study updates these essential metrics for commonly found fish and shrimp species in the North Inlet-Winyah Bay estuarine system, South Carolina, addressing gaps where previous data were unavailable, outdated, or sourced from other regions. Our research analyzed 7,874 specimens from 20 species across thirteen families, collected through trawl samples and bi-weekly seines from November 2022 to December 2023. The findings demonstrate robust WLRs with high coefficients of determination. Similarly, the LLRs confirmed reliable conversions between different length measurements. This study not …

Wild Pigs (Sus Scrofa) At Croft State Park In Spartanburg County, South Carolina, Jonathan J. Storm, Amelia R. Scollon, Melissa A. Storm, Briget C. Doyle

Journal of the South Carolina Academy of Science

No abstract provided.

Examination Of Oncogenic Effects Of Environmental Pollutants, Andrew Ackerman, Matthew Behling, Brock Earley, Janay Vacharasin

Journal of the South Carolina Academy of Science

Chemical byproducts produced by surrounding industrial complexes have polluted the local estuaries of Georgetown, South Carolina for several decades¹. Previous studies completed by the EPA and SCDNR showed that the estuaries contained carcinogenic pollutants released from the local manufacturing plants¹. One of the mentioned pollutants was dioxins which are produced during the paper bleaching process². Dioxins are highly toxic compounds that have various carcinogenic effects on the organisms that inhabit the area. These previous studies were conducted over thirty years ago. Therefore, a current study to determine if chemical byproducts are contaminating local estuaries …

A Triumph Of Conservation: The University Of South Carolina Aiken’S Bluebird Trail, Alyssa Godfrey, Emory Owens, Quinn Schreiber, Michelle L. Vieyra

Journal of the South Carolina Academy of Science

The Eastern Bluebird (Sialia sialis) was once an endangered species, with over 90% of its population declining in the early 1900s (Ritchison, 2000). These birds play a crucial role in regulating insect populations and maintaining the safety of food sources, making them important both economically and environmentally. Eastern Bluebirds are proof that conservation efforts work, as they are now a species of least conservation concern in the United States. Since 2020, undergraduate students at the University of South Carolina Aiken have collaborated with the South Carolina Bluebird Society to establish and monitor 31 nesting boxes across the main campus …

Striatal Beat Frequency Interval Timing Model With Microgravity Stressor, Jason Michael Fitzgerald, Sorinel Oprisan

Journal of the South Carolina Academy of Science

The Striatal Beat Frequency (SBF) model of interval timing uses frontal cortex (FC) neural oscillations to record the state of the brain at the reinforcement time Tc during fixed interval (FI) procedures in the long-term memory (LMEM). The state of the FC oscillators at any given time is stored in a short-term memory (SMEM) buffer. The SBF model uses the spiny neurons of the basal ganglia (BG) as coincidence detectors to produce beats between the content of the SMEM and LMEM. Across multiple species that can perform interval timing, there are two invariant properties: (a) the timing is precise, and …

Growth And Mobility Of Physella Acuta Under Individual And Combined Acetaminophen And Salinity Exposure, Rhea Wilder, Jason Doll, Daniel Elias

Journal of the South Carolina Academy of Science

Global climate change, driven by rapid population growth and anthropogenic activities, presents an urgent challenge to aquatic ecosystems. Salinity intrusion threatens water quality and availability for human and wildlife populations. At the same time, due to the demand for pharmaceuticals, these pollutants are increasingly detected in freshwater environments, with acetaminophen being one of the most prevalent. This research analyzed the individual and combined effects of salinity (2.5 g/L) and acetaminophen (488 μg/L) on Physella acuta. Overall, we observed reduced snail movement under elevated salinity and no effects on growth or movement with acetaminophen alone or in combination with salinity. …

Neuronal Injury Model Divulges Differences In Dendrite And Axonal Function And Regeneration In Adults, Lauren S. Vaughn, Jinyoung Lee

Faculty Publications

No abstract provided.

Illuminating The Twilight Zone: In-Situ Imaging Facilitates Discovery Of Mesopelagic Plankton Dynamics And Community Structure, Alexander Barth

Theses and Dissertations

Ocean ecosystems provide both food and regulation of climate. Much of ocean ecosystem functioning occurs through processes in the pelagic, where plankton are the dominant organisms. While plankton have been researched for several centuries, recent advances in technology are greatly improving the ability to better understand plankton and how their communities are structured. Specifically, in-situ imaging allows oceanographers and plankton ecologists to better sample fragile taxa and record organisms’ true traits at high frequencies. These tools can facilitate investigation into new topics in plankton ecology and better understand critically understudied habitats, like the mesopelagic of open-ocean systems. However, in-situ imaging …

The Effects Of High Fat Diet On Lipid Deposition In Skeletal Muscle, Alexander Huss

Theses and Dissertations

By the year 2030, almost 50% of adults in the United States are expected to be obese. Obesity has been shown to increase the risk of several chronic metabolic diseases, several cancers, and is associated with impaired skeletal muscle function and metabolism. Despite this, little it is known about the role of altered muscle lipid homeostasis, lipid droplet dynamics, and lipid droplet-mitochondrial interactions in contributing to muscle dysfunction in obesity. Therefore, we sought to investigate the impact of high-fat diet induced obesity on overall skeletal muscle lipid deposition, intramyocellular lipid droplet content and morphology, and lipid droplet-mitochondrial contact. Male C57/BL6 …

Effects Of Mmp14 Overexpression On Cardiac And Ovarian Connective Tissue And Myocyte Size In Pregnant And Post-Partum Mice, Emily Catherine Walliser

Theses and Dissertations

The main protein component of extracellular matrix is collagen, which fills spaces and supports cells. In the heart, collagen provides the scaffolding for cardiomyocytes and aids in contractile forces. In the ovary, collagen gives follicles their structural support. MMP14 or membrane type 1 matrix metalloproteinase is a membrane bound proteinase that cleaves extracellular matrix proteins, including collagen I and III. Recent studies have shown that overexpression of MMP14 influences collagen content in the heart, and elevated MMP14 has also been linked to ovarian cancer. In the current study, we investigate the effects of overexpression of a human MMP14 (hMMP14) transgene …

Estuarine Microbial Community Composition And Efficiency Changes In Response To Vibrio Parahaemolyticus Exposure, Sarah Mulligan

Theses and Dissertations

Vibrio parahaemolyticus is a pathogenic bacterium whose full impact on natural estuarine phytoplankton communities has not been fully resolved. The primary goal of this research was to test how the addition of V. parahaemolyticus to a natural estuarine microbial community would impact the other microbes present. We hypothesized V. parahaemolyticus exposure would reduce phytoplankton biomass and alter the composition of phytoplankton and bacterial communities. Experimental bioassays (60h) were used to assess the effects of the presence of V. parahaemolyticus . Samples for measurements of chemotaxonomic photopigment concentrations, 16S sequencing-based community composition, photosynthetic efficiency, cell density, and V. parahaemolyticus abundance were …

Understanding The Role Of Host Derived Interleukin 1 Alpha In Breast Cancer Progression, Manikanda Raja Keerthi Raja

Theses and Dissertations

In breast cancer research, Interleukin-1 alpha (IL1α) remains a lesser-explored frontier, while its counterpart, Interleukin-1 beta, has garnered extensive scrutiny and understanding. To address this knowledge gap, our investigation leveraged the MMTVdriven HER2+ orthotopic model in Wildtype (WT) and IL1α-/- mice. Our approach demonstrated tumor regression in IL1α-/- mice at the 2-week timepoint, while WT tumors grew exponentially. At 2 weeks, IL1α-/- mice exhibited an immune "hot" microenvironment with increased CD45+ immune cells, particularly CD11b+ myeloid, and CD8+ T cells. CD8+ cells in IL1α-/- mice showed enhanced anti-tumor cytokine production and proliferative capability, with …