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Articles 301 - 314 of 314
Full-Text Articles in Medicine and Health Sciences
Protecting Life And Lung: Protected Areas Affect Fine Particulate Matter And Respiratory Hospitalizations In The Brazilian Amazon Biome., Derek Michael Sheehan
Protecting Life And Lung: Protected Areas Affect Fine Particulate Matter And Respiratory Hospitalizations In The Brazilian Amazon Biome., Derek Michael Sheehan
Graduate Student Theses, Dissertations, & Professional Papers
I assessed the impacts of upwind protected area coverage on local respiratory health within the Brazilian Amazon. A hypothesized mechanism is the legal prohibition of human ignited fires within protected areas, reducing particulate matter pollution, impacting respiratory health downwind. The connection between fires and respiratory diseases in the Amazon is well established (Smith et al. 2014; Rangel and Vogl 2019; Rocha and Sant’anna 2020). What is not well understood is the potential that government policies aimed at preventing ecosystem loss may also promote health and wellbeing, combining the UN sustainable development goals 3 and 15. Protected areas currently dominate government …
Characterization Of Spontaneous Preeclampsia In The African Green Monkey (Chlorocebus Aethiops Sabaeus), Chelsea Christina Weaver
Characterization Of Spontaneous Preeclampsia In The African Green Monkey (Chlorocebus Aethiops Sabaeus), Chelsea Christina Weaver
Theses and Dissertations--Biology
Hypertensive pregnancy disorders are a major contribution to maternal and neonatal mortality worldwide. Two of these disorders, preeclampsia and chronic hypertension in pregnancy, affect up to 10% of all pregnancies. These hypertensive disorders of pregnancy are associated with long-term, postnatal risk factors for both mother and offspring. Despite numerous recent advances in preeclampsia research, the underlying mechanisms are still not understood. This could be due to lack of a spontaneous animal model. This dissertation presents the African Green Monkey (AGM; Chlorocebus aethiops sabaeus) as the first known spontaneous animal model of preeclampsia and a highly translational model of chronic …
From Inner Segment To Outer Segment: Palmitoylation Of Photoreceptor Na+, K+-Atpase And The Importance Of Prcd In Photoreceptor Outer Segment Morphogenesis, Emily R. Sechrest
From Inner Segment To Outer Segment: Palmitoylation Of Photoreceptor Na+, K+-Atpase And The Importance Of Prcd In Photoreceptor Outer Segment Morphogenesis, Emily R. Sechrest
Graduate Theses, Dissertations, and Problem Reports
Photoreceptors are specialized neuroepithelial cells which are optimized for efficient capture of light and initiation of visual transduction. These cells have several compartments which are very important for proper visual function and segregation of cellular processes, including the outer segment (OS), inner segment (IS), nucleus, and synapse. The IS houses all of the cellular organelles and biosynthetic molecular machinery the cell requires and is the site of protein synthesis. The light-sensing OS is a highly modified, primary cilium, which contains many stacks of double membranous discs which house proteins required for formation and maintenance of OS structure, as well as …
Microevolution In Staphylococcus Aureus: Does Exposure To Sub-Lethal Levels Of Cinnamon Bark Oil Lead To Changes In Antimicrobial Susceptibility?, Heather Sandra Schuettner
Microevolution In Staphylococcus Aureus: Does Exposure To Sub-Lethal Levels Of Cinnamon Bark Oil Lead To Changes In Antimicrobial Susceptibility?, Heather Sandra Schuettner
Graduate College Dissertations and Theses
The emergence of antibiotic-resistant and multi-drug resistant bacteria presents a growing global health issue recognized by the World Health Organization and the Centers for Disease Control and Prevention. Infections caused by drug-resistant bacteria are associated with longer hospital stays, higher treatments costs, and increased mortality compared to infections caused by antibiotic-susceptible pathogens. The global increase in antibiotic resistance is driven in part by the misuse and overuse of antibiotics in healthcare and agriculture. Staphylococcus aureus can infect humans and animals, and strains that are resistant to one or more antibiotics are common. Many plant essential oils have antimicrobial properties. Essential …
Sars-Cov-2: An Investigation On Mutagenicity And Its Effects On Infectivity And Mortality, Tyler Elliott Silverwood
Sars-Cov-2: An Investigation On Mutagenicity And Its Effects On Infectivity And Mortality, Tyler Elliott Silverwood
Honors Theses and Capstones
SARS-CoV-2, the etiological agent of the COVID-19 pandemic, has rapidly become a worldwide public health concern. Classified as a betacoronavirus, it is the third human coronavirus (HCoV) to emerge in the 21st century that causes severe disease, alongside SARS-CoV and MERS-CoV. The genome consists of open reading frames encoding accessory proteins and four structural proteins, including the spike protein which is a key determinant of host cell tropism. Mutations within the genome, particularly the spike gene, have been linked in-vitro to increased binding affinity to the human receptor angiotensin-converting enzyme 2 (hACE2), increased fitness in human hosts, and immune evasion. …
Risk Factors And Trends In Antimicrobial Susceptibility Patterns In Strains Of Neisseria Gonorrhoeae Following Changes In The Cdc Sexually Transmitted Disease (Std) Treatment Guidelines – United States, 2012-2018, Niketta A. Womack
Electronic Theses and Dissertations
Antimicrobial resistant Neisseria gonorrhoeae (N. gonorrhoeae) has become a major global public health concern in the 21st century. Surveillance activities are essential in identifying risk factors in priority populations. The purpose of this study was to identify risk factors associated with and trends in antimicrobial susceptibility patterns in N. gonorrhoeae strains identified through the Gonococcal Isolate Surveillance Project (GISP). A study sample of 37,157 men was evaluated to measure adherence to changes in CDC’s STD treatment guidelines in 2012 and 2015. Data were analyzed to measure associations between independent and dependent variables by conducting bivariate and logistic regression …
Molecular Basis Of Cross-Sensitization In Colonic Inflammation-Induced Somatic Hypersensitivity, Parshva K. Mehta
Molecular Basis Of Cross-Sensitization In Colonic Inflammation-Induced Somatic Hypersensitivity, Parshva K. Mehta
Theses and Dissertations
A major portion of pain experienced by patients with an Irritable Bowel Disease (IBD) or Irritable Bowel Syndrome (IBS) can be attributed to visceral hypersensitivity. Visceral stimuli transmitted through primary afferent neurons in the dorsal root ganglia (DRG) induce a nociceptive response. Notably, a subset of patients has also experienced the development of somatic pain, such as leg pain, after diagnosis of a bowel disorder. The aim of this investigation is to ascertain which biochemical mediators are involved in the development of such viscerosomatic cross-sensitization. Initially, the Von Frey Test was used to find behavioral evidence of somatic referred pain; …
Cost-Effectiveness Of Interventions Targeting Hard-To-Reach Populations Living With Hiv In Eastern And Southern Africa, Deo Mujwara
Theses and Dissertations
In Eastern and Southern Africa, hard-to-reach populations (e.g., long distance truck drivers and female sex workers), defined as populations that are difficult to interact or engage with due to their unique behaviors and characteristics, are disproportionately affected by the HIV epidemic and are at high-risk of acquiring and transmitting HIV. Further, these populations have substantially low uptake of HIV testing services, and those that have been diagnosed with HIV and on antiretroviral therapy experience high loss-to-follow-up from treatment programs.
Hard-to-reach populations face unique barriers in accessing and utilizing routine HIV care such as provider stigmatization towards sex workers and highly …
Investigating Cannabinoid Type-1 Receptor (Cb1r) Positive Allosteric Modulators (Pams) In Mouse Models Of Overt Cannabimimetic Activity, Subjective Drug Effects, And Neuropathic Pain, Jayden Elmer
Theses and Dissertations
Chronic pain affects between 20 and 30 percent of the adult population in western countries and represents a wide array of specific etiologies (Berge, 2011). Neuropathic pain secondary to traumatic nerve injury, chemotherapeutic toxicity, or diseases (e.g., diabetes mellitus) is often refractory to conventional analgesics, with patients receiving less than 50% pain relief compared to placebo (Finnerup et al. 2010). The endocannabinoid system has shown potential as a therapeutic target for neuropathic pain wherein CB1 agonism via administration of exogenous agonists or pharmacological blockade of endocannabinoid catabolic enzymes exhibits efficacy in reversing allodynia in the chronic constriction injury (CCI) model …
The Effects Of Interleukin-1Β On Cardiac Reserve And Exercise Capacity In The Mouse, Habeebah Z. Vohra
The Effects Of Interleukin-1Β On Cardiac Reserve And Exercise Capacity In The Mouse, Habeebah Z. Vohra
Theses and Dissertations
Heart failure (HF) is characterized by dyspnea, fatigue, and exercise intolerance. Clinical evidence points to increased interleukin-1β (IL-1β) activity in patients with HF, with an IL-1 blockade improving the exercise capacity in HF patients. In healthy mice, recombinant-mouse IL-1β (rmIL-1β) induces acute systolic dysfunction, peaking 4 hours after administration. However, the direct effects of rmIL-1β on exercise capacity are unknown. We hypothesized that rmIL-1β diminishes the exercise capacity in the mouse. Adult mice were trained to run on a treadmill and exercise capacity was assessed before, 4 hours, and 96 hours after intraperitoneal administration of rmIL-1β (3 μg/kg) or vehicle …
Health Outcomes And Utilization Associated With Renal Diseases In Patients With Cancer In The United States, Mitisha Dedhia
Health Outcomes And Utilization Associated With Renal Diseases In Patients With Cancer In The United States, Mitisha Dedhia
Theses and Dissertations
Background: Adverse events and impairments associated with cancer and its treatments causes worse outcomes. Increased incidence of renal diseases among cancer patients is of particular concern. Objective: To determine the risk factors for renal disease in cancer patients and compare healthcare costs, utilization and health-related quality of life (HRQoL) of cancer patients with a renal disease and cancer patients without renal diseases. Methods: Medical Expenditure Panel Survey files from 2009 – 2018 for cancer patients was used for this study. Multiple logistic regression, generalized linear model, Poisson regression and multiple linear regression for analyses after adjusting for demographic, socioeconomic and …
Nebulizer-Based Systems To Improve Pharmaceutical Aerosol Delivery To The Lungs, Benjamin M. Spence
Nebulizer-Based Systems To Improve Pharmaceutical Aerosol Delivery To The Lungs, Benjamin M. Spence
Theses and Dissertations
Combining vibrating mesh nebulizers with additional new technologies leads to substantial improvements in pharmaceutical aerosol delivery to the lungs across therapeutic administration methods. In this dissertation, streamlined components, aerosol administration synchronization, and/or Excipient Enhanced Growth (EEG) technologies were utilized to develop and test several novel devices and aerosol delivery systems. The first focus of this work was to improve the poor delivery efficiency, e.g., 3.6% of nominal dose (Dugernier et al. 2017), of aerosolized medication administration to adult human subjects concurrent with high flow nasal cannula (HFNC) therapy, a form of continuous-flow non-invasive ventilation (NIV). The developed Low-Volume Mixer-Heater (LVMH) …
United States Nursing Homes And Health Equity During The Covid-19 Pandemic, Carla Cooper
United States Nursing Homes And Health Equity During The Covid-19 Pandemic, Carla Cooper
Electronic Theses and Dissertations
Objective: The COVID-19 pandemic disproportionately affected older populations, with nursing homes impacted early on by the disease. The contribution of race/ethnicity of nursing home residents and facility characteristics on COVID-19 were unknown. The Donabedian model framework was used to study the relationship between the racial/ethnic characteristics of nursing home residents and COVID-19 outcomes and to examine if this relationship was moderated by the racial/ethnic composition of the county of nursing home location.
Method: Cross-sectional research design merging data from five publicly available sources. Laboratory confirmed COVID-19 cases and deaths were compared by the racial composition of the county and nursing …
Impact Of 17-Beta Estradiol And Moderate-Intensity Exercise On Mesenteric Arterial Function Of Uc Davis Type-2 Diabetes Mellitus Rats, Md Rahatullah Razan
Impact Of 17-Beta Estradiol And Moderate-Intensity Exercise On Mesenteric Arterial Function Of Uc Davis Type-2 Diabetes Mellitus Rats, Md Rahatullah Razan
University of the Pacific Theses and Dissertations
The studies in this dissertation were designed to investigate the impacts of estrogen (17-β estradiol/E2) and moderate-intensity exercise (MIE) on the mesenteric arterial (MA) function of the University of California Davis type-2 diabetes mellitus (UCD-T2DM) Rat model. Our recent report suggests that diabetes impairs MA vasorelaxation in both sexes of the UCD-T2DM model. Particularly, we reported that MA from prediabetic male rats showed a greater impairment compared to that in prediabetic females. However, when females become diabetic, they exhibit a greater vascular dysfunction than males. Therefore, the aim of the first study was to investigate whether female sex hormone, specifically …