Endocrine System Commons^™

High Phosphorus Intake: The Role Of Phosphorus And Health Outcomes Through The Lens Of High Phosphorus Additive Intake, Taigen M. Mayes

Senior Honors Theses

Phosphorus is a commonly consumed mineral in the traditional human diet and plays an essential role in human physiological functions. With the use of phosphate additives, high phosphate intake has become increasingly prevalent in recent years. Phosphate is regulated in the body by a homeostasis mechanism. A disruption to the homeostasis has a link to various pathologies such as bone health, cardiovascular disease, cancers, and kidney issues. Various studies have investigated the role of phosphate and its effects on human function. Bone health, cardiovascular disease, cancer, premature aging, dementia, and kidney disease are linked with high phosphorus intake.

The Science Of Sound: Studying The Cognitive, Emotional, And Physiological Effects Of Frequency, Genre, And Music, Jett Yarborough

Senior Honors Theses

Music influences emotion, physiology, and cognition, yet little is known about how the frequency it is tuned to affects these influences. Prior research has shown that music tuned to 432 Hz can reduce stress, lower blood pressure, and improve sleep. My colleagues and I conducted two studies to investigate this. Our research found that music tuned to 432 Hz promotes a significant increase in memory retention and induces a state of focus and relaxation. These results suggest that shifting from the standard tuning frequency of 440 Hz to 432 Hz could have a profoundly positive impact on our daily lives. …

Appearance Over Function - The Impact Of Long-Term Oral Contraceptive Use On Brain Development, Breast Tissue Composition, And Future Lactation Outcomes, Fiona M. Wang

Dissertations

This integrative review examines the long-term effects of combined oral contraceptive (COC) use beginning in puberty on brain development, breast tissue composition, and future breastfeeding outcomes. Puberty is a critical developmental stage during which hormonal changes significantly impact the neurological and reproductive systems. The introduction of synthetic estrogen and progestin through COC use during this time may disrupt natural hormonal pathways, potentially altering neuroendocrine signaling and breast tissue maturation. Such changes may have lasting consequences, including impaired milk production, a weakened milk ejection reflex, disrupted maternal-infant bonding, and reduced overall breastfeeding success. The review synthesizes findings from endocrinology, neuroscience, and …

The "Dual-Port" Approach To The Posterior Incisura: A Quantitative Cadaver Study Of A Combined Endoscopic Paramedian Supracerebellar Infratentorial And Occipital Interhemispheric Transtentorial Approach, Wesley Shoap, Ezequiel Goldschmidt, Roberto Rodriguez Rubio

School of Medicine Faculty Publications

BACKGROUND: The posterior incisura is a deep and surgically challenging area with complex neurovasculature. Endoscopic paramedian supracerebellar infratentorial approaches (EPSCITAs) have improved access and visualization of this region. However, endoscope and instrument conflict within this deep and narrow corridor remains a key limitation. This study evaluates the feasibility of a combined EPSCITA and endoscopic occipital interhemispheric transtentorial approach (EOIHTTA) with the aim of improving surgical freedom and visualization in this region. METHODS: Five embalmed and latex-injected cadaveric donors were dissected bilaterally (10 sides total). Measurements were taken at the EPSCITA port and then were repeated after addition of the EOIHTTA …

Acute Pancreatitis With Acute Kidney Injury Is Associated With Worse 30 And 90-Day Outcomes: A Multinational Multicenter Analysis, Donghyun Ko, Do Han Kim Md, Pedro Palacios Argueta Md, Wilhelm S. Basegoda Md, Frank J. Lukens Md, Paul T. Kroner Md

Posters

Acute kidney injury (AKI) in patients with acute pancreatitis (AP) has been consistently shown to impact clinical outcomes and is a marker of organ dysfunction, being a primary indicator and driver of disease severity. The cornerstone of management of AP is aggressive intravenous fluid administration, and AKI has traditionally been a surrogate measure of the adequacy of volume repletion and is even recommended by the current ACG guidelines to be monitored in 6-hour intervals for 24-48 hours from presentation. While having been proven to be a factor of paramount importance on prior studies, the aim of our study is to …

History Of Bariatric Surgery Is Not Associated With Worse Clinical Outcomes At 5 Years In Patients Who Undergo Liver Transplantation, Do Han Kim Md, Donghyun Ko, Pedro Palacios Argueta Md, Wilhelm S. Basegoda Md, Jose A. Porres, Klaus E. Monkemuller, Paul T. Kroner Md

Posters

This study explores and compares outcomes of LT alone with LT in patients with a prior history of RYGB or SG, using a large multinational database.

Gonadotropin-Releasing Hormone Ii And Its Receptor: Novel Regulators Of Semen Quality And Follicular Function In Swine, Caitlin Elizabeth Ross

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Pigs are the only mammalian livestock species encoding functional proteins for the second form of gonadotropin-releasing hormone (GnRH-II) and its receptor (GnRHR-II). In the first study, GnRHR-II localized to developing germ cells and the connecting piece of ejaculated spermatozoa. Concurrently, GnRH-II was most abundantly produced in the testis compared with other reproductive tract organs and was present within seminal plasma. Moreover, treatment of extended semen with GnRHR-II analogues altered sperm motility, morphology, and kinematics. For remaining studies, we utilized a swine line with ubiquitous knockdown of GnRHR-II (GnRHR-II KD) developed in our laboratory. The second study demonstrated that circulating GnRH-II …

Gene Expression Profiling Of Pancreatic Ductal Adenocarcinoma Cells In Hypercapnia Identifies Siah3 As A Novel Prognostic Biomarker, Nitzan Zohar, Ryan Maguire, Saed Khalilieh, Aditi Jain, Dmitriy Bosykh, Wilbur B. Bowne, Harish Lavu, Charles J. Yeo, Avinoam Nevler

Department of Surgery Faculty Papers

Hypercapnia is a key feature of the respiratory microenvironment in many pathologic conditions. It occurs both as a regional and as a systemic process, and it is associated with multiple metabolic changes such as mitochondrial dysfunction, decreased ATP production, and metabolic shift from glycolytic energy production to fatty acid metabolism. In the cancer tumor microenvironment, hypercapnia has been linked at times to enhanced cell migration, invasion, and chemoresistance. Our previous work has shown that hypercapnia-associated gene signatures can be used as prognostic biomarkers. However, unlike the hypoxia-inducible factor pathway, there are no validated targets to quantify hypercapnia. In this study, …

The Role Of The Female Reproductive Cycle In Social Communication And Relevance To Mental Health, Julissa Amaro Castillo, Fernando Dominguez, Ariana Hinojosa, Giselle Padilla, Mario Gil

Research Symposium

The female reproductive cycle is characterized by fluctuating hormones, including estrogens and progesterone, that are involved in reproductive health; however, they have also been linked to disorders like Premenstrual syndrome (PMS), Premenstrual Dysphoric Disorder (PMDD), mood swings, depression and others. The goal of this study is to use the Syrian hamster (Mesocricetus auratus) as an animal model to examine the influence of the reproductive cycle and hormones on behavior. Scent-marking activity known as flank marking is exhibited by territorial or sociable animals. In essence, animals mark their territory or convey information such as reproductive status by rubbing their flanks or …

Effects Of Arginine-Vasopressin In The Brain On Cardiovascular Function In A Psychosocial Stress Animal Model, Esmeralda Lopez-Garcia, Ariana V. Hinojosa, Esperanza I. Alaniz, Fernando Dominguez, Giselle Padilla, Mario Gil

Research Symposium

Background: Psychosocial stress impacts cardiovascular health, increasing the risk of events like myocardial infarction (MI), stress cardiomyopathy, and neuropsychiatric disorders, including Major Depressive Disorder (MDD) and Anxiety. However, our understanding of the biological mechanisms that connect psychosocial stress with negative cardiovascular and psychological outcomes remains incomplete. Arginine-vasopressin (AVP) is linked to both mental and physical health by regulating social behavior, blood pressure, and anxiety-related behaviors. This study investigates the potential cardioprotective effects of the neuropeptide AVP, in an effort to generate evidence that it may strengthen heart function and lessen the severity of adverse cardiovascular events caused by stress, brain …

Racial Health Disparities Among Pregnant Women Of Color In New York City: Biological And Systemic Impacts, Kaylin Peña

Pitzer Senior Theses

Racial Health Disparities Among Pregnant Women of Color in New York City: Biological and Systemic Impacts

Abstract

This thesis aims to explore how racial health disparities, underrepresentation in gynecology, and socioeconomic barriers contribute to adverse pregnancy outcomes among women of color in New York City. Through an interdisciplinary approach that combines resources from medical anthropology and human biology, this research will examine the biological implications of chronic stress, specifically HPA axis dysregulation, and its role in maternal health outcomes. With the idea of intersectionality, as conceptualized by Kimberlé Crenshaw, the study analyzes the various effects of systemic inequities and social …

Exposure To Phthalates And Replacements During Pregnancy In Association With Gestational Blood Pressure And Hypertensive Disorders Of Pregnancy, Erin E. Mcnell, Danielle R. Stevens, Barrett M. Welch, Emma M. Rosenthal, Suzanne Fenton, Antonia M. Calafat, Julianne Cook Botelho, Elena Sinkovskaya, Ann Przybylska, George Saade, Alfred Abuhamad, Kelly K. Ferguson

Department of Obstetrics & Gynecology Faculty Publications

Exposure to endocrine-disrupting chemicals such as phthalates may increase risk of hypertensive disorders of pregnancy (HDP). Prior studies lack investigation of chemical mixtures, phthalate replacements, or key periods of susceptibility including early pregnancy. In the present study, we used a longitudinal approach to evaluate gestational exposure to phthalates and replacements, as both single-pollutants and mixtures, in association with blood pressure and diagnosis of preeclampsia or any HDP. The Human Placenta and Phthalates prospective pregnancy cohort includes 291 participants recruited from two U.S. clinics. Urinary metabolites of ten phthalates and replacements were quantified at up to 8 time points per individual …

Optimization Of Serum And Salivary Cortisol Interpolation For Time-Dependent Modeling Frameworks In Healthy Adult Males, Nathaniel T. Berry, Travis Anderson, Christopher K. Rhea, Laurie Wideman

Rehabilitation Sciences Faculty Publications

Cortisol is an important marker of hypothalamic-pituitary-adrenal function and follows robust circadian and diurnal rhythms. However, biomarker sampling protocols can be labor-intensive and cost-prohibitive. Objectives: Explore analytical approaches that can handle differing biological sampling frequencies to maximize these data in more detailed and time-dependent analyses. Methods: Healthy adult males [N = 8; 26.1 (±3.1) years; 176.4 (±8.6) cm; 73.1 (±12.0) kg)] completed two 24 h admissions: one at rest and one including a high-intensity exercise session on the cycle ergometer. Serum and salivary cortisol were sampled every 60 and 120 min, respectively. Six alternative sampling profiles were defined by downsampling …

Endocrine System, Your Very Favorite, Children's Health

English

single-page

Endocrine System (Spanish), Your Very Favorite, Children's Health

Spanish

single-page, Spanish

Health Matters! Coloring And Activity Book (80-Pages), Your Very Favorite, Children's Health, Lorraine Sheldon, May Bressler

English

Health Matters! is a English-language health literacy resource designed for pediatric patients and their families. Written at an approximately 6th-grade reading level, it supports patient education through engaging coloring and activity pages.

The content covers a wide range of health and wellness topics, including body systems, nutrition, mental wellness, patient safety, and social-emotional skills such as building friendships and navigating conversations when returning to school. Developed for use in both hospital settings and the broader community, the resource promotes learning through interactive, age-appropriate activities.

This printable PDF version contains the complete collection of activities and comprises 80 pages. The resource …

La Salud Es Importante: Libro De Actividades (80-Pages), Your Very Favorite, Children's Health, Lorraine Sheldon, May Bressler

Spanish

Health Matters! is a Spanish-language health literacy resource designed for pediatric patients and their families. Written at an approximately 6th-grade reading level, it supports patient education through engaging coloring and activity pages.

The content covers a wide range of health and wellness topics, including body systems, nutrition, mental wellness, patient safety, and social-emotional skills such as building friendships and navigating conversations when returning to school. Developed for use in both hospital settings and the broader community, the resource promotes learning through interactive, age-appropriate activities.

This printable PDF version contains the complete collection of activities and comprises 80 pages. The resource …

Neural Mechanisms Of Respiratory Interoception, Pei-Ying Sarah Chan, Lu-Yuan Lee, Paul W. Davenport

UK CARES Faculty Publications

Respiratory interoception is one of the internal bodily systems that is comprised of different types of somatic and visceral sensations elicited by different patterns of afferent input and respiratory motor drive mediating multiple respiratory modalities. Respiratory interoception is a complex system, having multiple afferents grouped into afferent clusters and projecting into both discriminative and affective centers that are directly related to the behavioral assessment of breathing. The multi-afferent system provides a spectrum of input that result in the ability to interpret the different types of respiratory interceptive sensations. This can result in a response, commonly reported as breathlessness or dyspnea. …

Investigating The Modulation Of Metastasis By Dax-1 In Adrenal Carcinoma Cells, Aarya Mishra

Undergraduate Honors Theses

The nuclear hormone receptor (NHR), DAX-1 (dosage-sensitive sex reversal, adrenal hypoplasia critical region, on chromosome X, gene 1), is important in adrenal and gonadal development as well as steroidogenesis. It is encoded by the NR0B1 gene and functions mainly as a transcriptional repressor. Classified as an orphan receptor within the NHR superfamily, DAX-1 has been shown to inhibit other NHRs including estrogen receptor, androgen receptor and steroidogenic factor 1. DAX-1 is found to be underexpressed in breast and prostate cancers and, specifically in prostate cancer, is believed to be a transcriptional repressor of genes that are involved in epithelial-mesenchymal transition …

Cortisol Production In Female Soccer Players, Katelyn Seagraves

Honors Projects

Cortisol is released from the adrenal glands when there is an apparent stressor. Exercise, while beneficial, is seen as stress to the body and incites increased cortisol release. Cortisol is known to increase with exercise, and higher-intensity exercise tends to raise cortisol more compared to lower intensities. However, less is known about interval training and cortisol concentrations.

This review of literature dives into the background of cortisol: how it's produced, what systems it regulates, and differences in production based on gender, stressors, exercise intensity, and duration. This paper identifies some knowledge gaps and links training intensities in soccer to cortisol …

Cortisol Production In Female Soccer Players, Katelyn Seagraves

ASPIRE 2024

Cortisol is released from the adrenal glands when there is an apparent stressor. Exercise, while beneficial, is seen as stress to the body and incites increased cortisol release. Cortisol is known to increase with exercise, and higher-intensity exercise tends to raise cortisol more compared to lower intensities. However, less is known about interval training and cortisol concentrations.

This review of literature dives into the background of cortisol: how it's produced, what systems it regulates, and differences in production based on gender, stressors, exercise intensity, and duration. This paper identifies some knowledge gaps and links training intensities in soccer to cortisol …

Synergistic Effects Of Nanosecond Pulsed Plasma And Electric Field On Inactivation Of Pancreatic Cancer Cells In Vitro, Edwin A. Oshin, Zobia Minhas, Ruben M. L. Colunga Biancatelli, John D. Catravas, Richard Heller, Siqi Guo, Chunqi Jiang

Bioelectrics Publications

Nanosecond pulsed atmospheric pressure plasma jets (ns-APPJs) produce reactive plasma species, including charged particles and reactive oxygen and nitrogen species (RONS), which can induce oxidative stress in biological cells. Nanosecond pulsed electric field (nsPEF) has also been found to cause permeabilization of cell membranes and induce apoptosis or cell death. Combining the treatment of ns-APPJ and nsPEF may enhance the effectiveness of cancer cell inactivation with only moderate doses of both treatments. Employing ns-APPJ powered by 9 kV, 200 ns pulses at 2 kHz and 60-nsPEF of 50 kV/cm at 1 Hz, the synergistic effects on pancreatic cancer cells (Pan02) …

Sex Differences In The Effects Of Cortisol On Muscle Characteristics: A Meta-Analysis, Natalie Bitetti

CMC Senior Theses

Background: Cortisol plays a central role in both muscle breakdown and growth. These effects are highly dependent on dose and interactions with other hormones. It is known that men and women show considerable differences in their muscle structure and physiology, which are largely driven by hormonal differences. Cortisol release patterns may also vary between the sexes, with current research showing considerable disagreement. The interplay between cortisol and muscle, two highly variable and sexually dimorphic factors, may prove to have different effects in males versus females.

Objective: This meta-analysis integrates existing research on sex differences in cortisol-muscle physiology with existing research …

How Hormonal Contraceptives Influence Injury In Female Athletes: A Systematic Review, Ashley V. Malvita

Honors Undergraduate Theses

Research indicates that female athletes have a higher risk of musculoskeletal injuries. Hormone fluctuations throughout the different periods of the menstruation cycle impacts the risk of injuries for women. Contraceptive use, most used in the form of an oral contraceptive pill, directly effects hormones and menstrual cycle related symptoms, with evidence of ameliorating some symptoms. Oral contraceptive use is suggested to influence musculoskeletal injuries in female athletes. However, there is little research and data that explores the direct relationship between oral contraceptive use and the injury rates of female athletes. Within this systematic review, five articles investigating this relationship fulfilled …

Central Activation Of Orl-1 Receptors In Heart Failure Models, Jeffrey Angell

Theses & Dissertations

Heart failure is a prevalent and debilitating disease associated with high morbidity and mortality rates worldwide and is the leading cause of death in the United States. While various therapeutic strategies have been developed and approved to manage heart failure, exploration of novel targets and mechanisms are essential for improving patient outcomes. This thesis investigates the therapeutic potential of the central activation of opioid receptor-like 1 (ORL-1) by nociceptin in a rodent heart failure model.

Furthermore, this study aims to elucidate the central mechanisms underlying nociceptin induced cardiovascular and renal effects in heart failure. This involves investigating neuronal pathways and …

Modeling Physiological Response To Stress Via Hormone And Catecholamine Production, Helen Harris

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

Role Of Gper In Cadmium-Induced Phosphorylation Of Erk1/2 In Ovarian Adenocarcinoma, Laura Sackie

Undergraduate Theses

Cadmium, a carcinogenic heavy metal, is an environmental contaminant found in air, water, and soil. It also exhibits endocrine disruptive properties by mimicking the proliferative effects of the hormone estrogen and is classified as a metalloestrogen. At low concentration levels in some cancer cells, cadmium induces cell proliferation and phosphorylation of ERK1/2, a key protein in the estrogen signaling pathway. While the signaling pathways for cadmium- induced phosphorylation of ERK1/2 have been discovered in breast and lung cancer cells, it has not yet been fully determined in ovarian cancer cells. The fairly recent discovery of a transmembrane receptor found in …

Barriers To Screening For Diabetic Retinopathy: A Scoping Review, Amy Cooper Rn, Bsn, Lajerica Bates Rn, Bsn, Julie Bridges Rn, Bsn, Laura Reed Dnp, Fnp-Bc

Doctor of Nursing Practice Projects

Purpose/Background

More than 34 million people in the United States have diabetes. Diabetic retinopathy (DR) is a major complication of diabetes and a leading cause of vision loss. Risk factors for diabetic retinopathy include Type 1 and Type 2 Diabetes, hypertension, smoking, and being African American or Hispanic/Latino. This scoping review seeks to analyze the current research on ways to increase vision screenings, thus reducing cases of diabetic retinopathy in adults.

Methods

Between September 2020 and November 2021, a search was conducted using PubMed, EBSCOhost, Medline, and CINAHL to identify articles using keywords such as diabetic retinopathy and ophthalmology. This …

Impact Of Perioperative Dexamethasone On Hospital Length Of Stay And Glycemic Control In Patients With Type 2 Diabetes Undergoing Total Hip Arthroplasty, Vanessa Williams, Mohammad J. Uddin Ansari, Amruta Jaju, Stacey Ward, Daniel O'Keefe, Jumana Abdelkarim, Nicole Montes, Ula Tarabichi, Albert Botchway, Michael G. Jakoby Iv

Journal of Patient-Centered Research and Reviews

Purpose: This study aimed to evaluate effects of perioperative dexamethasone on hospital length of stay (LOS) and glycemic control for patients with type 2 diabetes mellitus undergoing total hip arthroplasty (THA).

Methods: We performed retrospective case review of THA performed in adults (≥ 18 years old) with type 2 diabetes at Springfield Memorial Hospital (Springfield, IL) immediately before (2013), during (2014), and after (2015) publication of consensus guidelines for use of perioperative dexamethasone. Hospital LOS was the primary endpoint. Capillary blood glucose by hospital day, proportion of patients treated with insulin, and median insulin dose by hospital day …

Parental Instincts: The Neurological And Biological Factors Associated With Parenthood, Jared Reeder

Undergraduate Honors Theses

The following project involves a systematic review of the scientific literature on neural and biological changes of mothers and fathers in parenthood. Until very recently, little scientific research was devoted to studying how bearing children affects a man or woman’s long-term biology. Over the last twenty years, studies of neuroplastic changes in new mothers show specific neural mechanisms responsible for altering the behaviors of mothers during and after pregnancy. These changes in neuroplasticity alter behavior in such a way that led to mothers requiring less sleep and being more prone to hearing the cries of their children. In addition to …