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Articles 13051 - 13080 of 18111
Full-Text Articles in Entire DC Network
Looking The Part: An Examination Of Longitudinal Gender Presentation Among Children With Gay, Lesbian, And Heterosexual Adoptive Parents, Samuel T. Bruun
Looking The Part: An Examination Of Longitudinal Gender Presentation Among Children With Gay, Lesbian, And Heterosexual Adoptive Parents, Samuel T. Bruun
Theses and Dissertations--Psychology
Gender presentation, appearing in a way that fits social expectations of one’s gender role, represents one of the most obvious ways in which one’s gender identity becomes salient to others. This quality is especially relevant to note given the continued controversy surrounding children’s gender role development when raised by non-heterosexual parents. The current study is an examination of how gender presentation develops in adopted children with lesbian, gay, and heterosexual parents across two time points (Wave 1: N = 106, Mage = 36.07 months; Wave 2: N = 90, Mage = 8.34). Children’s gender presentation was analyzed using …
The Self-Reported And Behavioral Effects Of Propylene Glycol And Vegetable Glycerin In Electronic Cigarette Liquids, Arit M. Harvanko
The Self-Reported And Behavioral Effects Of Propylene Glycol And Vegetable Glycerin In Electronic Cigarette Liquids, Arit M. Harvanko
Theses and Dissertations--Psychology
Little is known about how electronic cigarette (EC) users manipulate device parameters, what factors drive their use, and how non-nicotine ingredients influence the stimulus effects of EC aerosols. The ingredients propylene glycol (PG) or vegetable glycerin (VG) serve as the base for virtually all electronic cigarette liquids, and information on how they affect the using experience would provide important groundwork for the study of other ingredients. In this dissertation, results from a survey and laboratory study focused on the stimulus effects of ECs, and the influence of PG and VG, will be discussed. A total of 522 regular EC users …
Discovery Of Natural Product Analogs Against Ethanol-Induced Cytotoxicity In Hippocampal Slice Cultures, Meredith A. Saunders-Mattingly
Discovery Of Natural Product Analogs Against Ethanol-Induced Cytotoxicity In Hippocampal Slice Cultures, Meredith A. Saunders-Mattingly
Theses and Dissertations--Psychology
An estimated 13.9% of Americans currently meet criteria for an alcohol (ethanol; EtOH) use disorder (AUD). While there are 4 medications approved by the Food and Drug Administration (FDA) to treat AUD, these treatments have demonstrated poor clinical efficacy. Our ongoing research program encompasses a multi-tiered screening of a natural product library and validation process to provide novel information about the mechanisms underlying EtOH-induced changes in neurobiology and to identify novel chemical scaffolds to be exploited in the development of pharmacological treatments for AUD in a rodent organotypic hippocampal slice culture model. Initial screens of several natural product compounds identified …
Effects Of Social Interaction On Morphine Conditioned Place Preference In Adolescent Male Rats, Virginia G. Weiss
Effects Of Social Interaction On Morphine Conditioned Place Preference In Adolescent Male Rats, Virginia G. Weiss
Theses and Dissertations--Psychology
The fact that adolescents commonly initiate drug use in social settings is well established. Both clinical and preclinical research has investigated how social interaction is altered by a variety of drugs of abuse. What is less understood is how the rewarding value of drugs of abuse is affected by the presence of social peers. This dissertation aimed to investigate the interaction of morphine and social play on conditioned place preference (CPP) in adolescent male Sprague Dawley rats, using both behavioral and immunohistochemistry (IHC) methods. Rats were exposed to morphine (0, 1, or 3 mg/kg; s.c.), social interaction, or a combination …
Person-Centered Analysis Of Adhd Comorbidities And Differential Characteristics And Outcomes, Christine Anne Lee
Person-Centered Analysis Of Adhd Comorbidities And Differential Characteristics And Outcomes, Christine Anne Lee
Theses and Dissertations--Psychology
Attention-deficit/hyperactivity disorder (ADHD) is one of the most prevalent and impairing childhood disorders (5%; American Psychiatric Association, 2013), yet it is often studied in isolation. Such an approach is at odds with the clinical reality, where ADHD has a high comorbidity with oppositional defiant disorder, anxiety, and depression (Jensen, Martin, & Cantwell, 1997). Based on the possible presentations of ADHD with both externalizing and internalizing symptoms, there may be differences in associated characteristics, areas of impairment, and resulting assessment interventions. Therefore, the present study investigated how ADHD comorbidities manifested in a population of 233 elementary age children and how these …
Potential Candidates For Treating Deficits Associated With Developmental Ethanol Exposure In A Rodent Model: Solidago Nemoralis & Dimethoxybenzylidene-Anabasine, Logan James Fields
Potential Candidates For Treating Deficits Associated With Developmental Ethanol Exposure In A Rodent Model: Solidago Nemoralis & Dimethoxybenzylidene-Anabasine, Logan James Fields
Theses and Dissertations--Psychology
Prenatal alcohol exposure (Fetal Alcohol Syndrome [FAS] and Fetal Alcohol Spectrum Disorders [FASD’s]) represents the leading preventable cause of intellectual disabilities in the western world, with FASDs estimated to affect approximately 2-5% of live births in the United States at an approximate annual cost of $3.6 billion (CDC, 2015; May et al., 2009). Ethanol (ETOH) exposure during development can lead to a variety of long-term behavioral impairments including problems with executive functioning, motor coordination, spatial learning, attention, and hyperactivity (Jones, 2011; Mattson & Riley, 1998). Much research has been conducted to develop pharmacological and/or environmental interventions to reduce these deficits, …
Racism, Resistance, Resilience: Chronically Ill African American Women’S Experiences Navigating A Changing Healthcare System, Elizabeth New
Racism, Resistance, Resilience: Chronically Ill African American Women’S Experiences Navigating A Changing Healthcare System, Elizabeth New
Theses and Dissertations--Anthropology
This medical anthropology dissertation is an intersectional study of the illness experiences of African-American women living with the chronic autoimmune syndrome systemic lupus erythematosus (SLE), commonly known as lupus. Research was conducted in Memphis, Tennessee from 2013 to 2015, with the aim of examining the healthcare resources available to working poor and working class women using public sector healthcare programs to meet their primary care needs. This project focuses on resources available through Tennessee’s privatized public sector healthcare system, TennCare, during the first phases of the Patient Protection and Affordable Care Act (ACA). A critical medical anthropological analysis is used …
Variation Of Native American Ceramics In The Big Bend Region Of The Lower Ocmulgee River Valley, Georgia, Ad 1540 To Ad 1715, Rachel Paige Hensler
Variation Of Native American Ceramics In The Big Bend Region Of The Lower Ocmulgee River Valley, Georgia, Ad 1540 To Ad 1715, Rachel Paige Hensler
Theses and Dissertations--Anthropology
Studies of European colonialism in the Western Hemisphere have shifted focus from areas of direct European/Native American contact, to investigate Native American groups outside of direct European contact. During Spanish colonization of the Southeastern United States (AD 1520 to AD 1715), the Big Bend region of the Ocmulgee River Valley, in Georgia, located about 160 kilometers from Spanish occupied coast, was inhabited by a Native American polity from the Late Prehistoric into the Mission period. This location is ideal for studying indirect contact.
Changes in ceramic production can be used to identify changes in Native American interaction through time. Attributes …
“We’Re Being Left To Blight”: Green Urban Development And Racialized Space In Kansas City, Chhaya Kolavalli
“We’Re Being Left To Blight”: Green Urban Development And Racialized Space In Kansas City, Chhaya Kolavalli
Theses and Dissertations--Anthropology
In this dissertation, I explore ‘green’ urban development and urban agriculture projects from the perspective of residents of an African American majority neighborhood in Kansas City—who reside in an area referred to as a ‘blighted food desert’ by local policy makers. In Kansas City, extensive city government support exists for urban agricultural projects, which are touted not just as a solution to poverty associated issues such food insecurity and obesity, but also as a remedy for ‘blight,’ violence and crime, and vacant urban land. Specific narratives of Kansas City’s past are used to prop up and legitimate these future visions …
Discovery Of Novel, Orally Bioavailable, Antileishmanial Compounds Using Phenotypic Screening, Diana Ortiz, W. Armand Guiguemde, Jared T. Hammill, Angela K. Carrillo, Yizhe Chen, Michele Connelly, Kayla Stalheim, Carolyn Elya, Alex Johnson, Jaeki Min, Anang Shelat, David C. Smithson, Lei Yang, Fangyi Zhu, R. Kiplin Guy, Scott M. Landfear
Discovery Of Novel, Orally Bioavailable, Antileishmanial Compounds Using Phenotypic Screening, Diana Ortiz, W. Armand Guiguemde, Jared T. Hammill, Angela K. Carrillo, Yizhe Chen, Michele Connelly, Kayla Stalheim, Carolyn Elya, Alex Johnson, Jaeki Min, Anang Shelat, David C. Smithson, Lei Yang, Fangyi Zhu, R. Kiplin Guy, Scott M. Landfear
Pharmaceutical Sciences Faculty Publications
Leishmaniasis is a parasitic infection that afflicts approximately 12 million people worldwide. There are several limitations to the approved drug therapies for leishmaniasis, including moderate to severe toxicity, growing drug resistance, and the need for extended dosing. Moreover, miltefosine is currently the only orally available drug therapy for this infection. We addressed the pressing need for new therapies by pursuing a two-step phenotypic screen to discover novel, potent, and orally bioavailable antileishmanials. First, we conducted a high-throughput screen (HTS) of roughly 600,000 small molecules for growth inhibition against the promastigote form of the parasite life cycle using the nucleic acid …
Computer-Aided Drug Design Of Capuramycin Analogues As Anti-Tuberculosis Antibiotics By 3d-Qsar And Molecular Docking, Yuanyuan Jin, Shuai Fan, Guangxin Lv, Haoyi Meng, Zhengyang Sun, Wei Jiang, Steven G. Van Lanen, Zhaoyong Yang
Computer-Aided Drug Design Of Capuramycin Analogues As Anti-Tuberculosis Antibiotics By 3d-Qsar And Molecular Docking, Yuanyuan Jin, Shuai Fan, Guangxin Lv, Haoyi Meng, Zhengyang Sun, Wei Jiang, Steven G. Van Lanen, Zhaoyong Yang
Pharmaceutical Sciences Faculty Publications
Capuramycin and a few semisynthetic derivatives have shown potential as anti-tuberculosis antibiotics.To understand their mechanism of action and structureactivity relationships a 3D-QSAR and molecular docking studies were performed. A set of 52 capuramycin derivatives for the training set and 13 for the validation set was used. A highly predictive MFA model was obtained with crossvalidated q2 of 0.398, and non-cross validated partial least-squares (PLS) analysis showed a conventional r2 of 0.976 and r2pred of 0.839. The model has an excellent predictive ability. Combining the 3D-QSAR and molecular docking studies, a number of new capuramycin analogs with …
Multiple Functions Of Creb-Binding Protein During Postembryonic Development: Identification Of Target Genes, Amit Roy, Smitha George, Subba Reddy Palli
Multiple Functions Of Creb-Binding Protein During Postembryonic Development: Identification Of Target Genes, Amit Roy, Smitha George, Subba Reddy Palli
Entomology Faculty Publications
Background: Juvenile hormones (JH) and ecdysteroids control postembryonic development in insects. They serve as valuable targets for pest management. Hence, understanding the molecular mechanisms of their action is of crucial importance. CREB-binding protein (CBP) is a universal transcriptional co-regulator. It controls the expression of several genes including those from hormone signaling pathways through co-activation of many transcription factors. However, the role of CBP during postembryonic development in insects is not well understood. Therefore, we have studied the role of CBP in postembryonic development in Tribolium, a model coleopteran insect.
Results: CBP is ubiquitously expressed in the red flour beetle, …
Cellubrevin/Vesicle-Associated Membrane Protein-3–Mediated Endocytosis And Trafficking Regulate Platelet Functions, Meenakshi Banerjee, Smita Joshi, Jinchao Zhang, Carole L. Moncman, Shilpi Yadav, Beth A. Bouchard, Brian Storrie, Sidney W. Whiteheart
Cellubrevin/Vesicle-Associated Membrane Protein-3–Mediated Endocytosis And Trafficking Regulate Platelet Functions, Meenakshi Banerjee, Smita Joshi, Jinchao Zhang, Carole L. Moncman, Shilpi Yadav, Beth A. Bouchard, Brian Storrie, Sidney W. Whiteheart
Molecular and Cellular Biochemistry Faculty Publications
Endocytosis is key to fibrinogen (Fg) uptake, trafficking of integrins (αIIbβ3, αvβ3), and purinergic receptors (P2Y1, P2Y12), and thus normal platelet function. However, the molecular machinery required and possible trafficking routes are still ill-defined. To further identify elements of the platelet endocytic machinery, we examined the role of a vesicle-residing, soluble N-ethylmaleimide factor attachment protein receptor (v-SNARE) called cellubrevin/vesicle-associated membrane protein-3 (VAMP-3) in platelet function. Although not required for normal platelet exocytosis or hemostasis, VAMP-3−/− mice had less platelet-associated Fg, indicating a defect in Fg uptake/storage. Other granule …
Immune Checkpoint Inhibitors In Neuroendocrine Tumors: A Single Institution Experience With Review Of Literature, Aman Chauhan, Millicent Horn, Gray Magee, Kurt Hodges, B. Mark Evers, Susanne Arnold, Lowell B. Anthony
Immune Checkpoint Inhibitors In Neuroendocrine Tumors: A Single Institution Experience With Review Of Literature, Aman Chauhan, Millicent Horn, Gray Magee, Kurt Hodges, B. Mark Evers, Susanne Arnold, Lowell B. Anthony
Markey Cancer Center Faculty Publications
This unique case series and review of literature suggests that immune checkpoint inhibitors may have clinical activity in neuroendocrine tumors.
Objective: Summarize advances of immuno-oncology in neuroendocrine tumors with the help of a case series.
Design: Case series and review of literature.
Intervention or Exposure: The patients were treated with immune checkpoint inhibitors (pembrolizumab or nivolumab).
Main Outcome(s) and Measures(s): Life expectancy, quality of life, disease progression.
Results: Maximum durable response of 16 months in one of the patients so far. All patients showed improvement in quality of life before disease progression. Two out of four are still on therapy. …
Nuclear Spindles Pave The Way To Metastasis, Patrick J. Hensley, Natasha Kyprianou
Nuclear Spindles Pave The Way To Metastasis, Patrick J. Hensley, Natasha Kyprianou
Urology Faculty Publications
No abstract provided.
Tfpiα Interacts With Fva And Fxa To Inhibit Prothrombinase During The Initiation Of Coagulation, Jeremy P. Wood, Helle H. Petersen, Bingke Yu, Xiaoai Wu, Ida Hilden, Alan E. Mast
Tfpiα Interacts With Fva And Fxa To Inhibit Prothrombinase During The Initiation Of Coagulation, Jeremy P. Wood, Helle H. Petersen, Bingke Yu, Xiaoai Wu, Ida Hilden, Alan E. Mast
Gill Heart & Vascular Institute Faculty Publications
Tissue factor pathway inhibitor α (TFPIα) inhibits prothrombinase, the thrombin-generating complex of factor Xa (FXa) and factor Va (FVa), during the initiation of coagulation. This inhibition requires binding of a conserved basic region within TFPIα to a conserved acidic region in FXa-activated and platelet-released FVa. In this study, the contribution of interactions between TFPIα and the FXa active site and FVa heavy chain to prothrombinase inhibition were examined to further define the inhibitory biochemistry. Removal of FXa active site binding by mutation or by deletion of the second Kunitz domain (K2) of TFPIα produced 17- or 34-fold weaker prothrombinase inhibition, …
Serine-Dependent Sphingolipid Synthesis Is A Metabolic Liability Of Aneuploid Cells, Sunyoung Hwang, H. Tobias Gustafsson, Ciara O’Sullivan, Gianna Bisceglia, Xinhe Huang, Christian Klose, Andrej Schevchenko, Robert C. Dickson, Paola Cavaliere, Noah Dephoure, Eduardo M. Torres
Serine-Dependent Sphingolipid Synthesis Is A Metabolic Liability Of Aneuploid Cells, Sunyoung Hwang, H. Tobias Gustafsson, Ciara O’Sullivan, Gianna Bisceglia, Xinhe Huang, Christian Klose, Andrej Schevchenko, Robert C. Dickson, Paola Cavaliere, Noah Dephoure, Eduardo M. Torres
Molecular and Cellular Biochemistry Faculty Publications
Aneuploidy disrupts cellular homeostasis. However, the molecular mechanisms underlying the physiological responses and adaptation to aneuploidy are not well understood. Deciphering these mechanisms is important because aneuploidy is associated with diseases, including intellectual disability and cancer. Although tumors and mammalian aneuploid cells, including several cancer cell lines, show altered levels of sphingolipids, the role of sphingolipids in aneuploidy remains unknown. Here, we show that ceramides and long-chain bases, sphingolipid molecules that slow proliferation and promote survival, are increased by aneuploidy. Sphingolipid levels are tightly linked to serine synthesis, and inhibiting either serine or sphingolipid synthesis can specifically impair the fitness …
Concise Review: Translating Regenerative Biology Into Clinically Relevant Therapies: Are We On The Right Path?, Jennifer Simkin, Ashley W. Seifert
Concise Review: Translating Regenerative Biology Into Clinically Relevant Therapies: Are We On The Right Path?, Jennifer Simkin, Ashley W. Seifert
Biology Faculty Publications
Despite approaches in regenerative medicine using stem cells, bio-engineered scaffolds, and targeted drug delivery to enhance human tissue repair, clinicians remain unable to regenerate large-scale, multi-tissue defects in situ. The study of regenerative biology using mammalian models of complex tissue regeneration offers an opportunity to discover key factors that stimulate a regenerative rather than fibrotic response to injury. For example, although primates and rodents can regenerate their distal digit tips, they heal more proximal amputations with scar tissue. Rabbits and African spiny mice re-grow tissue to fill large musculoskeletal defects through their ear pinna, while other mammals fail to regenerate …
Acute Resistance Exercise Induces Sestrin2 Phosphorylation And P62 Dephosphorylation In Human Skeletal Muscle, Nina Zeng, Randall F. D'Souza, Vandre C. Figueiredo, James F. Markworth, Llion A. Roberts, Jonathan M. Peake, Cameron J. Mitchell, David Cameron-Smith
Acute Resistance Exercise Induces Sestrin2 Phosphorylation And P62 Dephosphorylation In Human Skeletal Muscle, Nina Zeng, Randall F. D'Souza, Vandre C. Figueiredo, James F. Markworth, Llion A. Roberts, Jonathan M. Peake, Cameron J. Mitchell, David Cameron-Smith
Center for Muscle Biology Faculty Publications
Sestrins (1, 2, 3) are a family of stress-inducible proteins capable of attenuating oxidative stress, regulating metabolism, and stimulating autophagy. Sequestosome1 (p62) is also a stress-inducible multifunctional protein acting as a signaling hub for oxidative stress and selective autophagy. It is unclear whether Sestrin and p62Ser403 are regulated acutely or chronically by resistance exercise (RE) or training (RT) in human skeletal muscle. Therefore, the acute and chronic effects of RE on Sestrin and p62 in human skeletal muscle were examined through two studies. In Study 1, nine active men (22.1 ± 2.2 years) performed a bout of single-leg strength …
Snail Determines The Therapeutic Response To Mtor Kinase Inhibitors By Transcriptional Repression Of 4e-Bp1, Jun Wang, Qing Ye, Yanan Cao, Yubin Guo, Xiuping Huang, Wenting Mi, Side Liu, Chi Wang, Hsin-Sheng Yang, Binhua P. Zhou, B. Mark Evers, Qing-Bai She
Snail Determines The Therapeutic Response To Mtor Kinase Inhibitors By Transcriptional Repression Of 4e-Bp1, Jun Wang, Qing Ye, Yanan Cao, Yubin Guo, Xiuping Huang, Wenting Mi, Side Liu, Chi Wang, Hsin-Sheng Yang, Binhua P. Zhou, B. Mark Evers, Qing-Bai She
Markey Cancer Center Faculty Publications
Loss of 4E-BP1 expression has been linked to cancer progression and resistance to mTOR inhibitors, but the mechanism underlying 4E-BP1 downregulation in tumors remains unclear. Here we identify Snail as a strong transcriptional repressor of 4E-BP1. We find that 4E-BP1 expression inversely correlates with Snail level in cancer cell lines and clinical specimens. Snail binds to three E-boxes present in the human 4E-BP1 promoter to repress transcription of 4E-BP1. Ectopic expression of Snail in cancer cell lines lacking Snail profoundly represses 4E-BP1 expression, promotes cap-dependent translation in polysomes, and reduces the anti-proliferative effect of mTOR kinase inhibitors. Conversely, genetic …
Evaluation Of A Field-Deployable Reverse Transcription-Insulated Isothermal Pcr For Rapid And Sensitive On-Site Detection Of Zika Virus, Mariano Carossino, Yanqiu Li, Pei-Yu A. Lee, Chuan-Fu Tsai, Pin-Hsing Chou, Dennis Williams, Ashley Skillman, R. Frank Cook, Grayson Brown, Hsiao-Fen G. Chang, Hwa-Tang T. Wang, Udeni B. R. Balasuriya
Evaluation Of A Field-Deployable Reverse Transcription-Insulated Isothermal Pcr For Rapid And Sensitive On-Site Detection Of Zika Virus, Mariano Carossino, Yanqiu Li, Pei-Yu A. Lee, Chuan-Fu Tsai, Pin-Hsing Chou, Dennis Williams, Ashley Skillman, R. Frank Cook, Grayson Brown, Hsiao-Fen G. Chang, Hwa-Tang T. Wang, Udeni B. R. Balasuriya
Maxwell H. Gluck Equine Research Center Faculty Publications
Background: The recent emergence of Zika virus (ZIKV) in Brazil and its precipitous expansion throughout the Americas has highlighted the urgent need for a rapid and reliable on-site diagnostic assay suitable for viral detection. Such point-of-need (PON), low-cost diagnostics are essential for ZIKV control in vulnerable areas with limited resources.
Methods: We developed and evaluated a ZIKV-specific field-deployable RT-iiPCR reagent set targeting the E gene for rapid detection of ZIKV in ZIKV-spiked human and mosquito specimens, and compared its performance to the Center for Disease Control and Prevention (CDC) and Pan American Health Organization (PAHO) RT-qPCR assays targeting the E …
Integrating Herbivore Population Dynamics Into A Global Land Biosphere Model: Plugging Animals Into The Earth System, Shree R. S. Dangal, Hanqin Tian, Chaoqun Lu, Wei Ren, Shufen Pan, Jia Yang, Nicola Di Cosmo, Amy Hessl
Integrating Herbivore Population Dynamics Into A Global Land Biosphere Model: Plugging Animals Into The Earth System, Shree R. S. Dangal, Hanqin Tian, Chaoqun Lu, Wei Ren, Shufen Pan, Jia Yang, Nicola Di Cosmo, Amy Hessl
Plant and Soil Sciences Faculty Publications
Mammalian herbivores are an essential component of grassland and savanna ecosystems, and with feedbacks to the climate system. To date, the response and feedbacks of mammalian herbivores to changes in both abiotic and biotic factors are poorly quantified and not adequately represented in the current global land surface modeling framework. In this study, we coupled herbivore population dynamics in a global land model (the Dynamic Land Ecosystem Model, DLEM 3.0) to simulate populations of horses, cattle, sheep, and goats, and their responses to changes in multiple environmental factors at the site level across different continents during 1980–2010. Simulated results show …
Lipophosphoglycan Polymorphisms Do Not Affect Leishmania Amazonensis Development In The Permissive Vectors Lutzomyia Migonei And Lutzomyia Longipalpis, Paula M. Nogueira, Agna C. Guimarães, Rafael R. Assis, Jovana Sadlova, Jitka Myskova, Katerina Pruzinova, Jana Hlavackova, Salvatore J. Turco, Ana C. Torrecilhas, Petr Volf, Rodrigo P. Soares
Lipophosphoglycan Polymorphisms Do Not Affect Leishmania Amazonensis Development In The Permissive Vectors Lutzomyia Migonei And Lutzomyia Longipalpis, Paula M. Nogueira, Agna C. Guimarães, Rafael R. Assis, Jovana Sadlova, Jitka Myskova, Katerina Pruzinova, Jana Hlavackova, Salvatore J. Turco, Ana C. Torrecilhas, Petr Volf, Rodrigo P. Soares
Molecular and Cellular Biochemistry Faculty Publications
Background: Lipophosphoglycan (LPG) is a dominant surface molecule of Leishmaniapromastigotes. Its species-specific polymorphisms are found mainly in the sugars that branch off the conserved Gal(β1,4)Man(α1)-PO4 backbone of repeat units. Leishmania amazonensis is one of the most important species causing human cutaneous leishmaniasis in the New World. Here, we describe LPG intraspecific polymorphisms in two Le. amazonensis reference strains and their role during the development in three sand fly species.
Results: Strains isolated from Lutzomyia flaviscutellata (PH8) and from a human patient (Josefa) displayed structural polymorphism in the LPG repeat units, possessing side chains with 1 and 2 β-glucose …
Mitochondrial Dynamics And Respiration Within Cells With Increased Open Pore Cytoskeletal Meshes, David H. Jang, Sarah C. Seeger, Martha E. Grady, Frances S. Shofer, David M. Eckmann
Mitochondrial Dynamics And Respiration Within Cells With Increased Open Pore Cytoskeletal Meshes, David H. Jang, Sarah C. Seeger, Martha E. Grady, Frances S. Shofer, David M. Eckmann
Mechanical Engineering Faculty Publications
The cytoskeletal architecture directly affects the morphology, motility, and tensional homeostasis of the cell. In addition, the cytoskeleton is important for mitosis, intracellular traffic, organelle motility, and even cellular respiration. The organelle responsible for a majority of the energy conversion for the cell, the mitochondrion, has a dependence on the cytoskeleton for mobility and function. In previous studies, we established that cytoskeletal inhibitors altered the movement of the mitochondria, their morphology, and their respiration in human dermal fibroblasts. Here, we use this protocol to investigate applicability of power law diffusion to describe mitochondrial locomotion, assessment of rates of fission and …
Metabolic Dysregulation And Cancer Mortality In A National Cohort Of Blacks And Whites, Tomi Akinyemiju, Justin Xavier Moore, Suzanne Judd, Susan Lakoski, Michael Goodman, Monika M. Safford, Maria Pisu
Metabolic Dysregulation And Cancer Mortality In A National Cohort Of Blacks And Whites, Tomi Akinyemiju, Justin Xavier Moore, Suzanne Judd, Susan Lakoski, Michael Goodman, Monika M. Safford, Maria Pisu
Epidemiology and Environmental Health Faculty Publications
Background: We examined the association between metabolic dysregulation and cancer mortality in a prospective cohort of Black and White adults.
Methods: A total of 25,038 Black and White adults were included in the analysis. Metabolic dysregulation was defined in two ways: 1) using the joint harmonized criteria for metabolic syndrome (MetS) and 2) based on factor analysis of 15 variables characterizing metabolic dysregulation. We estimated hazards ratios (HRs) and 95% confidence intervals (CIs) for the association of MetS and metabolic dysregulation with cancer mortality during follow-up using Cox proportional hazards models.
Results: About 46% of Black and 39% of White …
Type 2 Neural Progenitor Cell Activation Drives Reactive Neurogenesis After Binge-Like Alcohol Exposure In Adolescent Male Rats, Chelsea Rhea Geil Nickell, Hui Peng, Dayna M. Hayes, Kevin Y. Chen, Justin A. Mcclain, Kimberly Nixon
Type 2 Neural Progenitor Cell Activation Drives Reactive Neurogenesis After Binge-Like Alcohol Exposure In Adolescent Male Rats, Chelsea Rhea Geil Nickell, Hui Peng, Dayna M. Hayes, Kevin Y. Chen, Justin A. Mcclain, Kimberly Nixon
Pharmaceutical Sciences Faculty Publications
Excessive alcohol consumption during adolescence remains a significant health concern as alcohol drinking during adolescence increases the likelihood of an alcohol use disorder in adulthood by fourfold. Binge drinking in adolescence is a particular problem as binge-pattern consumption is the biggest predictor of neurodegeneration from alcohol and adolescents are particularly susceptible to the damaging effects of alcohol. The adolescent hippocampus, in particular, is highly susceptible to alcohol-induced structural and functional effects, including volume and neuron loss. However, hippocampal structure and function may recover with abstinence and, like in adults, a reactive burst in hippocampal neurogenesis in abstinence may contribute to …
Serum Amyloid A3 Is A High Density Lipoprotein-Associated Acute-Phase Protein, Lisa R. Tannock, Maria C. De Beer, Ailing Ji, Preetha Shridas, Victoria P. Noffsinger, Laura Den Hartigh, Alan Chait, Frederick C. De Beer, Nancy R. Webb
Serum Amyloid A3 Is A High Density Lipoprotein-Associated Acute-Phase Protein, Lisa R. Tannock, Maria C. De Beer, Ailing Ji, Preetha Shridas, Victoria P. Noffsinger, Laura Den Hartigh, Alan Chait, Frederick C. De Beer, Nancy R. Webb
Internal Medicine Faculty Publications
Serum amyloid A (SAA) is a family of acute-phase reactants. Plasma levels of human SAA1/SAA2 (mouse SAA1.1/2.1) can increase ≥ 1,000-fold during an acute-phase response. Mice, but not humans, express a third relatively understudied SAA isoform, SAA3. We investigated whether mouse SAA3 is an HDL-associated acute-phase SAA. Quantitative RT-PCR with isoform-specific primers indicated that SAA3 and SAA1.1/2.1 are induced similarly in livers (∼2,500-fold vs. ∼6,000-fold, respectively) and fat (∼400-fold vs. ∼100-fold, respectively) of lipopolysaccharide (LPS)-injected mice. In situ hybridization demonstrated that all three SAAs are produced by hepatocytes. All three SAA isoforms were detected in plasma of LPS-injected mice, although …
Layer-By-Layer Assembled Membranes With Immobilized Porins, Sebastián Hernández, Cassandra Porter, Xinyi Zhang, Yinan Wei, Dibakar Bhattacharyya
Layer-By-Layer Assembled Membranes With Immobilized Porins, Sebastián Hernández, Cassandra Porter, Xinyi Zhang, Yinan Wei, Dibakar Bhattacharyya
Chemical and Materials Engineering Faculty Publications
New and advanced opportunities are arising for the synthesis and functionalization of membranes with selective separation, reactivity, and stimuli-responsive behavior. One such advancement is the integration of bio-based channels in membrane technologies. By a layer-by-layer (LbL) assembly of polyelectrolytes, outer membrane protein F trimers (OmpF) or “porins” from Escherichia coli with central pores ∼2 nm in diameter at their opening and ∼0.7 × 1.1 nm at their constricted region are immobilized within the pores of poly(vinylidene fluoride) microfiltration membranes, in contrast to traditional ruptured lipid bilayer or vesicle processes. These OmpF-membranes demonstrate selective rejection of non-charged organics over ionic solutes, …
Revision Of The Species Of Lytopylus From Area De Conservación Guanacaste, Northwestern Costa Rica (Hymenoptera, Braconidae, Agathidinae), Ilgoo Kang, Eric G. Chapman, Daniel H. Janzen, Winnie Hallwachs, Tanya Dapkey, M. Alex Smith, Michael J. Sharkey
Revision Of The Species Of Lytopylus From Area De Conservación Guanacaste, Northwestern Costa Rica (Hymenoptera, Braconidae, Agathidinae), Ilgoo Kang, Eric G. Chapman, Daniel H. Janzen, Winnie Hallwachs, Tanya Dapkey, M. Alex Smith, Michael J. Sharkey
Entomology Faculty Publications
Thirty two new species of Lytopylus (Agathidinae) are described with image plates for each species: Lytopylus alejandromasisi sp. n., Lytopylus alfredomainieri sp. n., Lytopylusanamariamongeae sp. n., Lytopylus angelagonzalezae sp. n., Lytopylus cesarmorai sp. n., Lytopylus eddysanchezi sp. n., Lytopylus eliethcantillanoae sp. n., Lytopylus ericchapmani sp. n., Lytopylus gahyunae sp. n., Lytopylus gisukae sp. n., Lytopylus guillermopereirai sp. n., Lytopylusgustavoindunii sp. n., Lytopylus hartmanguidoi sp. n., Lytopylus hernanbravoi sp. n., Lytopylushokwoni sp. n., Lytopylus ivanniasandovalae sp. n., Lytopylus johanvalerioi sp. n., Lytopylusjosecortesi sp. n. …
Structural And Functional Insights Into The Role Of Bamd And Bame Within The Β-Barrel Assembly Machinery In Neisseria Gonorrhoeae, Aleksandra E. Sikora, Igor H. Wierzbicki, Ryszard A. Zielke, Rachael F. Ryner, Konstantin V. Korotkov, Susan K. Buchanan, Nicholas Noinaj
Structural And Functional Insights Into The Role Of Bamd And Bame Within The Β-Barrel Assembly Machinery In Neisseria Gonorrhoeae, Aleksandra E. Sikora, Igor H. Wierzbicki, Ryszard A. Zielke, Rachael F. Ryner, Konstantin V. Korotkov, Susan K. Buchanan, Nicholas Noinaj
Molecular and Cellular Biochemistry Faculty Publications
The β-barrel assembly machinery (BAM) is a conserved multicomponent protein complex responsible for the biogenesis of β-barrel outer membrane proteins (OMPs) in Gram-negative bacteria. Given its role in the production of OMPs for survival and pathogenesis, BAM represents an attractive target for the development of therapeutic interventions, including drugs and vaccines against multidrug-resistant bacteria such as Neisseria gonorrhoeae. The first structure of BamA, the central component of BAM, was from N. gonorrhoeae, the etiological agent of the sexually transmitted disease gonorrhea. To aid in pharmaceutical targeting of BAM, we expanded our studies to BamD and BamE within …