Physiological Ecology of Four Endemic Alabama Species and the Exotic Asiatic Weatherfish, \u3ci\u3eMisgurnus anguillicaudatus\u3c/i\u3e (Cantor, 1842)

The occurrence of Asiatic Weatherfish, Misgurnus anguillicaudatus, in Alabama, a state known for its rich biodiversity, has generated concern among conservation managers. The current study used respirometry techniques to investigate the effects of increasing temperature on four native southeastern fishes (one cyprinid, two percids, and one elassomid) and the non-native M. anguillicaudatus. A minimum of five individuals of each species were used, and three experimental temperatures were chosen to represent spring and summer averages of northeast Alabama streams (15, 20, and 25°C). Overall, mean standard metabolic rates (SMRs) for M. anguillicaudatus were low (97.01, 127.75, and 158.50 mg O2 kg-1h-1 at 15, 20, and 25°C, respectively); M. anguillicaudatus was the only species for which SMR did not significantly increase with temperature (p = 0.467). In contrast, mean SMRs for all native species examined were higher than M. anguillicaudatus rates at a given temperature, and mean SMRs for Cyprinella caerulea, Etheostoma brevirostrum, and Etheostoma ditrema exhibited significant increases in SMR when temperatures were increased (e.g. 403.46, 704.42, and 1150.03 mg O2 kg-1h-1 at 25°C, respectively) (p \u3c 0.01). Elassoma zonatum displayed highly significant increases in SMR when temperature increased from 15-20°C (p \u3c 0.001). Overall, the abiotic tolerances of M. anguillicaudatus may facilitate further establishment that could lead to negative impacts on native species

Characterization of TLR-induced inflammatory responses in COPD and control lung tissue explants

Purpose: Viruses are a common cause of exacerbations in chronic obstructive pulmonary disease (COPD). They activate toll-like receptors (TLRs) 3, 7, and 8, leading to a pro-inflammatory response. We have characterized the responses of TLR3 and TLR7/8 in lung tissue explants from COPD patients and control smokers.Methods: We prepared lung whole tissue explants (WTEs) from patients undergoing surgery for confirmed or suspected lung cancer. In order to mimic the conditions of viral infection, we used poly(I:C) for TLR3 stimulation and R848 for TLR7/8 stimulation. These TLR ligands were used alone and in combination. The effects of tumor necrosis factor α (TNFα) neutralization and dexamethasone on TLR responses were examined. Inflammatory cytokine release was measured by enzyme-linked immunosorbent assay and gene expression by quantitative real-time polymerase chain reaction.Results: WTEs from COPD patients released higher levels of pro-inflammatory cytokines compared with WTEs from smokers. Activation of multiple TLRs led to a greater than additive release of TNFα and CCL5. TNFα neutralization and dexamethasone treatment decreased cytokine release.Conclusion: This WTE model shows an enhanced response of COPD compared with controls, suggesting an increased response to viral infection. There was amplification of innate immune responses with multiple TLR stimulation

Does Sexist Language Reflect Personal Characteristics?

We investigated whether or not sexist language in written form can be linked to traditional views of sex roles, assertiveness, psychological androgyny, Christian beliefs, or sexist language in oral form. In Experiment 1, undergraduates were given an essay designed to test written sexist language and several pencil-and-paper personality inventories. No relationship between sexist language and interpersonal assertiveness or psychological androgyny was found. However, those who avoided sexist language were less traditional in their sex role perceptions scored lower on a scale of Christian beliefs. In Experient 2, the method of measuring sexist language was expanded by using three essay responses and a brief oral interview. Those who used sexist language in written form were more likely than others to use sexist language in oral form on some responses. Interpretations and implications of the fmdings are discussed

Alexithymia and Emotional Ambivalence as Predictors of College Adjustment

The current study evaluated the constructs alexithymia and emotional ambivalence, regarding their impact on adjustment to college. Alexithymia is an emotional processing concept which is defined as difficulty identifying and describing feelings, externally oriented thought, and limited imaginal ability. Emotional ambivalence is the ongoing internal conflict about the desire to hide emotions, despite external circumstances that demand disclosure, and/or regret over decisions to disclose feelings. These were both looked at as predictors of college adjustment, with the inclusion of chronic pain and psychiatric distress as physical and mental health components of the transition

The Impact of Body Image Preoccupation on College Adjustment

Faculty Research Day 2018: Graduate Student Poster Honorable MentionThe physical and psychological adjustment to college is a often a disorienting time for students. Upon entering college, students are met with a new set of societal, personal, and academic expectations that decide the degree to which they are able to adapt to their new lives (Tinto, 1993). Given the taxing mental demands associated with the college transition, as well as the increasing prevalence of mental illnesses among college students (Duarte, Ferreira, Trindade, & Pinto-Gouveia, 2015; Hunt & Eisenberg, 2010), extensive research has examined the many psychological components that can effect students’ college experiences. Yet, despite the extensive literatures centering around body image preoccupation and college students’ psychological health/adjustment to college, there have been no studies that assess body image alongside college adjustment. The present study aims to fill this gap in the literature by examining the association of body image preoccupation and students’ adjustment to college

Macronutrient intakes and cardio metabolic risk factors in high BMI African American children

<p>Abstract</p> <p>Background</p> <p>The aim of this study was to evaluate the relationship between intakes of energy-providing macronutrients, and markers of cardio metabolic risk factors in high BMI African American (AA) children.</p> <p>Methods</p> <p>A cross sectional analysis of a sample of 9-11 year old children (n = 80) with BMI greater then the 85^thpercentile. Fasting hematological and biochemical measurements, and blood pressure were measured as selected markers of cardio metabolic risk factors and their relationships to dietary intakes determined.</p> <p>Results</p> <p>After adjusting for gender, pubertal stage and waist circumference (WC), multivariate regression analysis showed that higher total energy intakes (when unadjusted for source of energy) were associated with higher plasma concentrations of intermediate density lipoprotein cholesterol (IDL-C) and very low density lipoprotein cholesterol (VLDL-C). Higher intakes of carbohydrate energy (fat and protein held constant) were associated with higher IDL-C, VLDL-C, triglycerides (TG) and homeostasis model assessment of insulin resistance (HOMA-IR). Higher intakes of fat (carbohydrate and protein held constant), however, were associated with lower IDL-C; and higher protein intakes (fat and carbohydrate held constant) were associated with lower HOMA-IR.</p> <p>Conclusion</p> <p>The specific macronutrients that contribute energy are significantly associated with a wide range of cardio metabolic risk factors in high BMI AA children. Increases in carbohydrate energy were associated with undesirable effects including increases in several classes of plasma lipids and HOMA-IR. Increases in protein energy were associated with the desirable effect of reduced HOMA-IR, and fat energy intakes were associated with the desirable effect of reduced IDL-C. This analysis suggests that the effect of increased energy on risk of developing cardio metabolic risk factors is influenced by the source of that energy.</p

Late Holocene Sedimentation and Paleoenvironmental History for the Tidal Marshes of the Potomac and Rappahannock Rivers, Tributaries to Chesapeake Bay

Instrumental tide gauge records indicate that the modern rates of sea-level rise in the Chesapeake Bay more than double the global average of 1.2-1.5 mm yr-1. The primary objective for this study is to establish a relative depositional history for the tidal marshes of the Potomac and Rappahannock Rivers that will help us improve our understanding of processes that influence sedimentation in the proximal tributaries of Chesapeake Bay. Marsh cores were collected from Blandfield Point VA, Tappahannock VA, and Potomac Creek VA. The sedimentary facies include: 1) a lower unit of organic-poor, grey clay with fine sand and silt layers and estuarine foraminifera; and 2) an upper unit of organic-rich clay and peat with abundant brackish to freshwater marsh foraminifera and thecamoebians. AMS 14C dating of bulk marsh sediments yield sedimentation rates at Potomac Creek ranging from 3.04-4.20 mm yr-1 for the past 2500 years. Rates of sedimentation calculated for Blandfield Point indicate 1.37-2.19 mm yr-1 in the basal clays and peat for the past ~3000 years. Foraminiferal census counts indicate a freshening upward trend with a transition from an estuarine Ammobaculites crassus assemblage to a marsh Ammoastuta salsa assemblage with abundant freshwater thecamoebians. The late Holocene history of sedimentation for the marshes indicates that differential compaction, recent land use practices, and climate change have contributed to the resultant freshening-upward environmental trend and variability in sediment accumulation rates between coring sites

Prognosis of West Nile virus associated acute flaccid paralysis: a case series

Introduction: Little is known about the long-term health related quality of life outcomes in patients with West Nile virus associated acute flaccid paralysis. We describe the quality of life scores of seven patients with acute flaccid paralysis who presented to hospital between 2003 and 2006, and were followed for up to two years. Case presentations: Between 2003 and 2006, 157 symptomatic patients with West Nile virus were enrolled in a longitudinal cohort study of West Nile virus in Canada. Seven patients (4%) had acute flaccid paralysis. The firs