The Impact of Stress During Adolescence and the Prevalence of Pediatric Obesity

Obesity is a chronic condition that can be attributed to myriad factors including socioeconomic status, biological risk factors, and various environmental factors. These factors can be considered stress factors, and exposure to various levels of stress can impact the development of stress within the pediatric patients. The purpose of this study is to assess the association between the environmental, mental, social, physical, and psychological stress adolescents are exposed to and how they contribute to the prevalence of pediatric obesity throughout the United States. Understanding these risk factors can help us as a community and most importantly as clinicians develop better insight to our patients as a whole and therefore be able to provide better, well rounded care

Astrocytic S100B, Blood-Brain Barrier and Neurodegenerative Diseases

Increased life span and expectations of a better quality of life have resulted in a spotlight on neurodegenerative and cardiovascular diseases generally associated with aging. The drive toward evidence-based medicine has necessitated a constant search for objective biomarkers to assay disease onset, progress, and outcomes to make the best clinical decisions. Enhancement of their use depends on the mechanistic understanding of the biomarker’s role in the disease process itself. This chapter focuses on S100B. It is a calcium sensor protein that is primarily astrocytic. While it plays a complex, interlinked role in signaling, serum levels of S100B as a biomarker for clinical decisions is also an area of intense investigation. Both aspects are presented, with an emphasis on the role of S100B in in maintaining a blood-brain barrier, especially in the context of suggesting a unified mechanism for the onset and progression of neurodegenerative diseases

Evolutionary Interrelationships and Insights into Molecular Mechanisms of Functional Divergence: An Analysis of Neuronal Calcium Sensor Proteins

The normal function of any organism, its organizational complexity notwithstanding, depends on the interaction of its proteins with their targets. Thus, analysis of target site interaction is an essential part of all biology. At the protein level, such analyses are critical to both mechanistic knowledge and potential clinical applications such as drug discovery. Approaches to map amino acid residues involved in target site interaction typically are experimental or based on three-dimensional structures obtained through crystallography. Here we test a novel approach that combines phylogenetic analyses with mining of experimental data using neuronal calcium sensor proteins. The proteins fall into three groups based on sequence comparison. One interaction was taken up for analysis from each group. Using the sequence divergence to evaluate the role of amino acids identified experimentally to form the interface with the target, we demonstrate that it is possible to predict residues that are likely to contribute to the specificity of the interaction and, therefore, the functional divergence. Thus, evolutionary analyses of proteins provide an important addition in approaches to generate refined maps of target site interactions in proteins. This approach is especially useful in delineating the functional divergence in a family of closely related proteins

Distinguishing Multiple System Atrophy vs Parkinson’s Disease in an African American Woman

An 87-year-old African American woman with a past medical history of atrial fibrillation on warfarin and peripheral neuropathy with a family history of myasthenia gravis presented to the Emergency Department. The primary reason was loss of consciousness upon standing. The patient was given the diagnosis of hypertension, cervical spinal stenosis, and Parkinson’s Disease. There is little improvement with medications for any of these conditions. Currently, patient has episodes of worsening BP, blackouts, dysphagia, snoring, decreasing voice pitch with trismus. In addition, the patient is positive for dizziness, mild resting tremor in left hand with rigidity, constipation, multiple UTIs and postural instability. The patient and caregiver feel strongly that the care received is less than optimal. The possibility of Multiple System Atrophy, which usually is detected in younger (around age 50) patients, is examined based on differential diagnosis

Pain and Sleep are Associated in Fibromyalgia Patients

This poster explores whether a correlation exists between lack of sleep and fibromyalgia pain

Data on Final Calcium Concentration in Native Gel Reagents Determined Accurately Through Inductively Coupled Plasma Measurements

In this article we present data on the concentration of calcium as determined by Inductively Coupled Plasma (ICP) measurements. Calcium was estimated in the reagents used for native gel electrophoresis of Neuronal Calcium Sensor (NCS) proteins. NCS proteins exhibit calcium-dependent mobility shift in native gels. The sensitivity of this shift to calcium necessitated a precise determination of calcium concentrations in all reagents used. We determined the calcium concentrations in different components used along with the samples in the native gel experiments. These were: 20 mM Tris pH 7.5, loading dye and running buffer, with distilled water as reference. Calcium determinations were through ICP measurements. It was found that the running buffer contained calcium (244 nM) over the blank

The Effects of Sleep Quality, Covariates and a Possible Intervention

Sleep is an essential biological process needed to maintain adequate physiologic function. Research has provided growing evidence that chronic failure to get enough sleep is associated with increased risk for obesity, depression, diabetes, hypertension, stroke, cardiovascular disease, and mortality. Sleep deprivation is threatening the health of up to 45% of the world\u27s population. Furthermore, sleep disorders were found to be associated with significantly higher rates of health care utilization and cost, accounting for $94.9 billion in costs each year in the United States. Earlier data from this project demonstrated a correlation between sleep quality and pain. METHODS: Patients were recruited from Family Medicine and NMI. For a pilot study on intervention, student volunteers were recruited. Data was collected and statistical analyses were carried out with IBM SPSS v29.0 and Prism 12.0. RESULTS: Several covariates exhibited correlations with sleep quality. The sleep quality was surprisingly poor even in patients seen for well visits or annual examinations. It was also poor in student volunteers. CONCLUSIONS: The analyses revealed correlations between covariates (that are associated with the Body Mass Index (BMI), education levels) and sleep and circadian rhythms. Preliminary findings suggest a very short intervention was useful for students

Global Comparison of Health Policies Focused on Gestational Diabetes: Recognizing Pertinent Gaps

Introduction: Gestational diabetes mellitus (GDM) is a condition that affects 14.7% of women globally and occurs when a mother develops diabetes during the course of her pregnancy.1 Increased insulin resistance in pregnant mothers can lead to further complications, such as a larger baby, increased risk of the baby developing Type II diabetes, having low blood sugar, and even premature birth, which can lead to respiratory issues. The lack of policies in place to address GDM in various countries worldwide highlights the need for this literature. It is necessary to compile policies that are currently in place and to further discuss how to protect the health of pregnant women who have GDM and their children. Aim: The goals of this project are to compile health policies pertaining to Gestational Diabetes implemented in several countries across the world, to analyze core differences and similarities amongst Gestational Diabetes protocols, and to pinpoint disparities in existing health policies in order to determine areas of policy improvement. Conclusions: There are clear identifiable gaps amongst the different health policies. There are many populations that are predisposed to gestational diabetes due to genetics, past pregnancies, area of residency, socioeconomic status, etc. Future studies should pinpoint areas within a country to be able to develop initiatives that allow reduction in the health gaps seen

Extravasated Brain-Reactive Autoantibodies Perturb Neuronal Surface Protein Expression in Alzheimer\u27s Pathology

Background: Increased blood-brain barrier (BBB) permeability is reported in both the neuropathological and in vivo studies in both Alzheimer’s Disease (AD) and age matched cognitively normal, no cognitive impairment (NCI), subjects. Impaired BBB allows various vascular components such as immunoglobulin G (IgG) to extravasate into the brain and specifically bind to various neuronal surface proteins (NSP), also known as brain reactive autoantibodies (BrABs). This interaction is predicted to further enhance deposition of amyloid plaques. Hypothesis: Interaction between extravasated BrABs and its cognate NSPs lower the expression of that NSPs in AD patients. Methods: We selected Western blotting technique to study the expression of various brain proteins and test our hypothesis. Fresh frozen brain samples of AD and NCI subjects were acquired, and total brain protein was extracted using protocol established in Acharya lab. We also identified various NSPs to study the impact of BrABs-NSPs interactions. Additionally, we investigated the expression of amyloid plaques ((amyloid precursor protein (APP)) and apoptosis (Caspase-3) markers. Specific NSPs examined included the alpha7 nicotinic acetylcholine receptor (α7nAChR) and anti-choline acetyltransferase (ChAT). To image the membranes, fluorescent imaging was used initially, which was later switched to chemiluminescence, after much troubleshooting. Results: Most of the work done through these experiments was focused on establishing a thorough Western blot protocol that can be used to reliably perform these experiments. This involved determining the appropriate primary and secondary antibodies concentrations, loading concentrations, and testing different imaging settings to determine the most ideal image-acquisition conditions. Towards the end of the fellowship, we were successful in developing a protocol to further explore our investigation. Using this protocol, we were able to visualize bands for ChAT, α7nAChR, and caspase – 3. Conclusions: Using this protocol further Western blot experiments can be run to study and compare the expression levels of various NSP in AD and control samples for testing our hypothesi

The Brodmann Area 39/40 of the Brain in Alzheimer’s, Mild Cognitive Impairment, and No Cognitive Impairment Subjects at Advanced Age Demonstrate Comparable Levels of Blood-Brain Barrier Breach

• Alzheimer’s disease (AD) is one of the most common form of dementia • Mild cognitive impairment (MCI), specifically amnestic subtype, more likely to progress to AD • Pathogenesis Theories: o Accumulation of amyloid-beta peptides and neurofibrillary tangles containing hyperphosphorylated neuronal tau protein o Blood Brain Barrier (BBB) dysfunction is associated with AD pathogenesis • Brodmann area 39/40: regions of parietal cortex are responsible for language, spatial cognition, memory retrieval, attention, phonological processing, and emotional processing • Hypothesis: An increased BBB permeability in Brodmann area 39/40 of AD and age-matched MCI and no cognitive impairment (NCI) subject