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Romano IG, Core SB, Lee NR, Mowry C, Van Rompay KKA, Huang Y, Chackerian B, Frietze KM. A bacteriophage virus-like particle vaccine against oxycodone elicits high-titer and long-lasting antibodies that sequester drug in the blood. Vaccine 2024; 42:471-480. [PMID: 38160131 PMCID: PMC10872394 DOI: 10.1016/j.vaccine.2023.12.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/21/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
Opioid use disorder (OUD) and opioid overdoses are public health emergencies. In 2021, 80,000 opioid overdose associated deaths were reported in the United States. Despite the availability of treatment strategies, including medications for opioid use disorder (MOUD) and naloxone, opioid overdoses continue to increase at an alarming rate. Opioid vaccines are a novel approach to combat the growing crisis with several candidates recently entering human clinical trials. In this study, we investigated Qβ bacteriophage virus-like particles (VLPs) as a vaccine platform for immunogenic display of oxycodone. A derivative of oxycodone was conjugated to pre-formed Qβ VLPs using a sulfhydryl-amine reactive heterobifunctional crosslinker with high loading of oxycodone. In mice, intramuscular immunization with Qβ-oxycodone elicited high-titer, high-avidity and long-lasting antibody responses. Qβ-oxycodone was also immunogenic after storage at ambient room temperature for over two weeks, demonstrating that the vaccine is highly thermostable. In mice, immunization with Qβ-oxycodone elicited antibodies that sequester oxycodone in the serum, an important mechanism for preventing the adverse effects of opioid activity. Finally, Qβ-oxycodone is immunogenic in nonhuman primates, eliciting serum oxycodone antibodies after intramuscular immunization of rhesus macaques. These data establish Qβ-oxycodone as a promising opioid vaccine candidate.
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Affiliation(s)
- Isabella G Romano
- Department of Molecular Genetics and Microbiology, School of Medicine, University of New Mexico, MSC 08-4660, 1 University of New Mexico, Albuquerque, NM 87131, USA
| | - Susan B Core
- Department of Molecular Genetics and Microbiology, School of Medicine, University of New Mexico, MSC 08-4660, 1 University of New Mexico, Albuquerque, NM 87131, USA
| | - Naomi R Lee
- Department of Chemistry and Biochemistry, Northern Arizona University, 700 S. Osborne Drive, P.O. Box 5698, Flagstaff, AZ 86011, USA
| | - Curtis Mowry
- Department of Chemistry and Chemical Biology, University of New Mexico, MSC 03-2060, 1 University of New Mexico, Albuquerque, NM 87131, USA
| | - Koen K A Van Rompay
- California National Primate Research Center, University of California - Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Yumei Huang
- CellMosaic, Inc, 10A Roessler Road, Woburn, MA 01801, USA
| | - Bryce Chackerian
- Department of Molecular Genetics and Microbiology, School of Medicine, University of New Mexico, MSC 08-4660, 1 University of New Mexico, Albuquerque, NM 87131, USA
| | - Kathryn M Frietze
- Department of Molecular Genetics and Microbiology, School of Medicine, University of New Mexico, MSC 08-4660, 1 University of New Mexico, Albuquerque, NM 87131, USA.
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Lee NR, King A, Vigil D, Mullaney D, Sanderson PR, Ametepee T, Hammitt LL. Infectious diseases in Indigenous populations in North America: learning from the past to create a more equitable future. Lancet Infect Dis 2023; 23:e431-e444. [PMID: 37148904 PMCID: PMC10156139 DOI: 10.1016/s1473-3099(23)00190-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 05/08/2023]
Abstract
The COVID-19 pandemic, although a profound reminder of endured injustices by and the disparate impact of infectious diseases on Indigenous populations, has also served as an example of Indigenous strength and the ability to thrive anew. Many infectious diseases share common risk factors that are directly tied to the ongoing effects of colonisation. We provide historical context and case studies that illustrate both challenges and successes related to infectious disease mitigation in Indigenous populations in the USA and Canada. Infectious disease disparities, driven by persistent inequities in socioeconomic determinants of health, underscore the urgent need for action. We call on governments, public health leaders, industry representatives, and researchers to reject harmful research practices and to adopt a framework for achieving sustainable improvements in the health of Indigenous people that is both adequately resourced and grounded in respect for tribal sovereignty and Indigenous knowledge.
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Affiliation(s)
- Naomi R Lee
- Department of Chemistry and Biochemistry, Northern Arizona University, Flagstaff, AZ, USA
| | - Alexandra King
- College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Deionna Vigil
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Dustin Mullaney
- Department of Biology, Northern Arizona University, Flagstaff, AZ, USA
| | - Priscilla R Sanderson
- Department of Health Sciences, College of Health and Human Services, Northern Arizona University, Flagstaff, AZ, USA
| | - Taiwo Ametepee
- College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Laura L Hammitt
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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3
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Klever AM, Alexander KA, Almeida D, Anderson MZ, Ball RL, Beamer G, Boggiatto P, Buikstra JE, Chandler B, Claeys TA, Concha AE, Converse PJ, Derbyshire KM, Dobos KM, Dupnik KM, Endsley JJ, Endsley MA, Fennelly K, Franco-Paredes C, Hagge DA, Hall-Stoodley L, Hayes D, Hirschfeld K, Hofman CA, Honda JR, Hull NM, Kramnik I, Lacourciere K, Lahiri R, Lamont EA, Larsen MH, Lemaire T, Lesellier S, Lee NR, Lowry CA, Mahfooz NS, McMichael TM, Merling MR, Miller MA, Nagajyothi JF, Nelson E, Nuermberger EL, Pena MT, Perea C, Podell BK, Pyle CJ, Quinn FD, Rajaram MVS, Mejia OR, Rothoff M, Sago SA, Salvador LCM, Simonson AW, Spencer JS, Sreevatsan S, Subbian S, Sunstrum J, Tobin DM, Vijayan KKV, Wright CTO, Robinson RT. The Many Hosts of Mycobacteria 9 (MHM9): A conference report. Tuberculosis (Edinb) 2023; 142:102377. [PMID: 37531864 PMCID: PMC10529179 DOI: 10.1016/j.tube.2023.102377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/10/2023] [Accepted: 07/17/2023] [Indexed: 08/04/2023]
Abstract
The Many Hosts of Mycobacteria (MHM) meeting series brings together basic scientists, clinicians and veterinarians to promote robust discussion and dissemination of recent advances in our knowledge of numerous mycobacterial diseases, including human and bovine tuberculosis (TB), nontuberculous mycobacteria (NTM) infection, Hansen's disease (leprosy), Buruli ulcer and Johne's disease. The 9th MHM conference (MHM9) was held in July 2022 at The Ohio State University (OSU) and centered around the theme of "Confounders of Mycobacterial Disease." Confounders can and often do drive the transmission of mycobacterial diseases, as well as impact surveillance and treatment outcomes. Various confounders were presented and discussed at MHM9 including those that originate from the host (comorbidities and coinfections) as well as those arising from the environment (e.g., zoonotic exposures), economic inequality (e.g. healthcare disparities), stigma (a confounder of leprosy and TB for millennia), and historical neglect (a confounder in Native American Nations). This conference report summarizes select talks given at MHM9 highlighting recent research advances, as well as talks regarding the historic and ongoing impact of TB and other infectious diseases on Native American Nations, including those in Southwestern Alaska where the regional TB incidence rate is among the highest in the Western hemisphere.
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Affiliation(s)
- Abigail Marie Klever
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Kathleen A Alexander
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA; CARACAL/Chobe Research Institute Kasane, Botswana
| | - Deepak Almeida
- Center for Tuberculosis Research, Johns Hopkins University, Baltimore, MD, USA
| | - Matthew Z Anderson
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA; Department of Microbiology, The Ohio State University, Columbus, OH, USA
| | | | - Gillian Beamer
- Host Pathogen Interactions and Population Health Program, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - Paola Boggiatto
- Agricultural Research Service, United States Department of Agriculture, Ames, IA, USA
| | - Jane E Buikstra
- Center for Bioarchaeological Research, Arizona State University, Tempe, AZ, USA
| | - Bruce Chandler
- Division of Public Health, Alaska Department of Health, AK, USA
| | - Tiffany A Claeys
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Aislinn E Concha
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Paul J Converse
- Center for Tuberculosis Research, Johns Hopkins University, Baltimore, MD, USA
| | - Keith M Derbyshire
- Division of Genetics, The Wadsworth Center, New York State Department of Health, Albany, NY, USA; Department of Biomedical Sciences, University at Albany, Albany, NY, USA
| | - Karen M Dobos
- Department of Microbiology, Immunology, and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, CO, USA
| | - Kathryn M Dupnik
- Center for Global Health, Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Janice J Endsley
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Mark A Endsley
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Kevin Fennelly
- Pulmonary Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Rockville, MD, USA
| | - Carlos Franco-Paredes
- Department of Microbiology, Immunology, and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, CO, USA; Hospital Infantil de México Federico Gómez, México, USA
| | | | - Luanne Hall-Stoodley
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Don Hayes
- Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | | | - Courtney A Hofman
- Department of Anthropology, University of Oklahoma, Norman, OK, USA; Laboratories of Molecular Anthropology and Microbiome Research, University of Oklahoma, Norman, OK, USA
| | - Jennifer R Honda
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, TX, USA
| | - Natalie M Hull
- Department of Civil, Environmental, and Geodetic Engineering, The Ohio State University, Columbus, OH, USA
| | - Igor Kramnik
- Pulmonary Center, The Department of Medicine, Boston University Chobanian & Aveedisian School of Medicine, National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA, USA
| | - Karen Lacourciere
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - Ramanuj Lahiri
- United States Department of Health and Human Services, Health Resources and Services Administration, Health Systems Bureau, National Hansen's Disease Program, Baton Rouge, LA, USA
| | - Elise A Lamont
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Michelle H Larsen
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
| | | | - Sandrine Lesellier
- French Agency for Food, Environmental & Occupational Health & Safety (ANSES), Laboratory for Rabies and Wildlife,Nancy, France
| | - Naomi R Lee
- Department of Chemistry and Biochemistry, Northern Arizona University, Flagstaff, AZ, USA
| | - Christopher A Lowry
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Najmus S Mahfooz
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Temet M McMichael
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Marlena R Merling
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Michele A Miller
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Jyothi F Nagajyothi
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, NJ, USA
| | - Elizabeth Nelson
- Microbial Paleogenomics Unit, Dept of Genomes and Genetics, Institut Pasteur, Paris, France
| | - Eric L Nuermberger
- Center for Tuberculosis Research, Johns Hopkins University, Baltimore, MD, USA
| | - Maria T Pena
- United States Department of Health and Human Services, Health Resources and Services Administration, Health Systems Bureau, National Hansen's Disease Program, Baton Rouge, LA, USA
| | - Claudia Perea
- Animal & Plant Health Inspection Service, United States Department of Agriculture, Ames, IA, USA
| | - Brendan K Podell
- Department of Microbiology, Immunology, and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, CO, USA
| | - Charlie J Pyle
- Department of Molecular Genetics & Microbiology, Duke University School of Medicine, Durham, NC, USA; Department of Immunology, Duke University School of Medicine, Durham, NC, USA
| | - Fred D Quinn
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - Murugesan V S Rajaram
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Oscar Rosas Mejia
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | | | - Saydie A Sago
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Liliana C M Salvador
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ, USA
| | - Andrew W Simonson
- Department of Microbiology and Molecular Genetics and the Center for Vaccine Research, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - John S Spencer
- Department of Microbiology, Immunology, and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, CO, USA
| | - Srinand Sreevatsan
- Pathobiology & Diagnostic Investigation Department, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Selvakumar Subbian
- Public Health Research Institute (PHRI), New Jersey Medical School, Rutgers University, Newark, NJ, USA
| | | | - David M Tobin
- Department of Molecular Genetics & Microbiology, Duke University School of Medicine, Durham, NC, USA; Department of Immunology, Duke University School of Medicine, Durham, NC, USA
| | - K K Vidya Vijayan
- Department of Microbiology and Immunology, Center for AIDS Research, and Children's Research Institute, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Caelan T O Wright
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado Boulder, Boulder, CO, USA
| | - Richard T Robinson
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA.
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4
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Kollath DR, Morales MM, Itogawa AN, Mullaney D, Lee NR, Barker BM. Combating the Dust Devil: Utilizing Naturally Occurring Soil Microbes in Arizona to Inhibit the Growth of Coccidioides spp., the Causative Agent of Valley Fever. J Fungi (Basel) 2023; 9:jof9030345. [PMID: 36983513 PMCID: PMC10056400 DOI: 10.3390/jof9030345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
The fungal disease Valley fever causes a significant medical and financial burden for affected people in the endemic region, and this burden is on the rise. Despite the medical importance of this disease, little is known about ecological factors that influence the geographic point sources of high abundance of the pathogens Coccidioides posadasii and C. immitis, such as competition with co-occurring soil microbes. These “hot spots”, for instance, those in southern Arizona, are areas in which humans are at greater risk of being infected with the fungus due to consistent exposure. The aim of this study was to isolate native microbes from soils collected from Tucson, Arizona (endemic area for C. posadasii) and characterize their relationship (antagonistic, synergistic, or neutral) to the fungal pathogen with in vitro challenge assays. Secreted metabolites from the microbes were extracted and described using analytical techniques including high-performance liquid chromatography (HPLC) and mass spectrometry. Bacteria belonging to the genus Bacillus and fungi in the Fennellomyces and Ovatospora genera were shown to significantly decrease the growth of Coccidioides spp. In vitro. In contrast, other bacteria in the Brevibacillus genus, as well as one species of Bacillus bacteria, were shown to promote growth of Coccidioides when directly challenged. The metabolites secreted from the antagonistic bacteria were described using HPLC and matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS). The microbes identified in this study as antagonists to Coccidioides and/or the metabolites they secrete have the potential to be used as natural biocontrol agents to limit the amount of fungal burden at geographic point sources, and therefore limit the potential for human infection.
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Affiliation(s)
- Daniel R. Kollath
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ 86011, USA
- Correspondence: ; Tel.: +1-708-280-5867
| | - Matthew M. Morales
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Ashley N. Itogawa
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Dustin Mullaney
- Department of Chemistry and Biochemistry, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Naomi R. Lee
- Department of Chemistry and Biochemistry, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Bridget M. Barker
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ 86011, USA
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5
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Morales CG, Jimenez NR, Herbst-Kralovetz MM, Lee NR. Novel Vaccine Strategies and Factors to Consider in Addressing Health Disparities of HPV Infection and Cervical Cancer Development among Native American Women. Med Sci (Basel) 2022; 10:52. [PMID: 36135837 PMCID: PMC9503187 DOI: 10.3390/medsci10030052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/31/2022] [Accepted: 09/05/2022] [Indexed: 12/24/2022] Open
Abstract
Cervical cancer is the 4th most common type of cancer in women world-wide. Many factors play a role in cervical cancer development/progression that include genetics, social behaviors, social determinants of health, and even the microbiome. The prevalence of HPV infections and cervical cancer is high and often understudied among Native American communities. While effective HPV vaccines exist, less than 60% of 13- to 17-year-olds in the general population are up to date on their HPV vaccination as of 2020. Vaccination rates are higher among Native American adolescents, approximately 85% for females and 60% for males in the same age group. Unfortunately, the burden of cervical cancer remains high in many Native American populations. In this paper, we will discuss HPV infection, vaccination and the cervicovaginal microbiome with a Native American perspective. We will also provide insight into new strategies for developing novel methods and therapeutics to prevent HPV infections and limit HPV persistence and progression to cervical cancer in all populations.
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Affiliation(s)
- Crystal G. Morales
- Department of Biology, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Nicole R. Jimenez
- Department of Obstetrics and Gynecology, College of Medicine, University of Arizona, Phoenix, AZ 85004, USA
| | - Melissa M. Herbst-Kralovetz
- Department of Obstetrics and Gynecology, College of Medicine, University of Arizona, Phoenix, AZ 85004, USA
- Department of Basic Medical Sciences, College of Medicine, University of Arizona, Phoenix, AZ 85004, USA
| | - Naomi R. Lee
- Department of Chemistry and Biochemistry, Northern Arizona University, Flagstaff, AZ 86011, USA
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Fidler DJ, Prince MA, Van Deusen K, Esbensen AJ, Thurman AJ, Abbeduto L, Patel L, Mervis C, Schworer EK, Lee NR, Edgin JO, Hepburn S, Davis S, Daunhauer LA. Latent profiles of autism symptoms in children and adolescents with Down syndrome. J Intellect Disabil Res 2022; 66:265-281. [PMID: 34984734 PMCID: PMC9009451 DOI: 10.1111/jir.12910] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 11/12/2021] [Accepted: 11/14/2021] [Indexed: 05/29/2023]
Abstract
BACKGROUND Down syndrome (DS) is associated with elevated rates of autism spectrum disorder (ASD) and autism symptomatology. To better characterise heterogeneity in ASD symptomatology in DS, profiles of caregiver-reported ASD symptoms were modelled for children and adolescents with DS. METHODS Participants (n = 125) were recruited through several multi-site research studies on cognition and language in DS. Using the Social Responsiveness Scale-2 (SRS-2; Constantino and Gruber 2012), two latent profile analyses (LPA) were performed, one on the broad composite scores of social communication and interaction and restricted interests and repetitive behaviour, and a second on the four social dimensions of social communication, social motivation, social awareness, and social cognition. RESULTS A three-profile model was the best fit for both analyses, with each analysis yielding a low ASD symptom profile, an elevated or mixed ASD symptom profile and a high ASD symptom profile. Associations were observed between profile probability scores and IQ, the number of co-occurring biomedical conditions reported, sex, and SRS-2 form. CONCLUSIONS Characterising heterogeneity in ASD symptom profiles can inform more personalised supports in this population, and implications for potential therapeutic approaches for individuals with DS are discussed.
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Affiliation(s)
- D J Fidler
- Human Development and Family Studies, Colorado State University, Fort Collins, CO, USA
| | - M A Prince
- Human Development and Family Studies, Colorado State University, Fort Collins, CO, USA
- Department of Psychology, Colorado State University, Fort Collins, CO, USA
| | - K Van Deusen
- Human Development and Family Studies, Colorado State University, Fort Collins, CO, USA
| | - A J Esbensen
- Department of Pediatrics, Cincinnati Children's Hospital Medical Campus, Cincinnati, OH, USA
| | - A J Thurman
- Department of Psychiatry, MIND Institute, University of California - Davis Health, Sacramento, CA, USA
| | - L Abbeduto
- Department of Psychiatry, MIND Institute, University of California - Davis Health, Sacramento, CA, USA
| | - L Patel
- Department of Psychiatry, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - C Mervis
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY, USA
| | - E K Schworer
- Department of Pediatrics, Cincinnati Children's Hospital Medical Campus, Cincinnati, OH, USA
| | - N R Lee
- Department of Psychology, Drexel University, Philadelphia, PA, USA
| | - J O Edgin
- Sonoran University Center for Excellence in Developmental Disabilities, University of Arizona, Tucson, AZ, USA
| | - S Hepburn
- Human Development and Family Studies, Colorado State University, Fort Collins, CO, USA
| | - S Davis
- Department of Psychology, Colorado State University, Fort Collins, CO, USA
| | - L A Daunhauer
- Human Development and Family Studies, Colorado State University, Fort Collins, CO, USA
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7
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Jones CW, Morales CG, Eltiste SL, Yanchik-Slade FE, Lee NR, Nilsson BL. Capacity for increased surface area in the hydrophobic core of β-sheet peptide bilayer nanoribbons. J Pept Sci 2021; 27:e3334. [PMID: 34151480 PMCID: PMC8349901 DOI: 10.1002/psc.3334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 04/19/2021] [Indexed: 12/12/2022]
Abstract
Amphipathic peptides with amino acids arranged in alternating patterns of hydrophobic and hydrophilic residues efficiently self‐assemble into β‐sheet bilayer nanoribbons. Hydrophobic side chain functionality is effectively buried in the interior of the putative bilayer of these nanoribbons. This study investigates consequences on self‐assembly of increasing the surface area of aromatic side chain groups that reside in the hydrophobic core of nanoribbons derived from Ac‐(XKXE)2‐NH2 peptides (X = hydrophobic residue). A series of Ac‐(XKXE)2‐NH2 peptides incorporating aromatic amino acids of increasing molecular volume and steric profile (X = phenylalanine [Phe], homophenylalanine [Hph], tryptophan [Trp], 1‐naphthylalanine [1‐Nal], 2‐naphthylalanine [2‐Nal], or biphenylalanine [Bip]) were assessed to determine substitution effects on self‐assembly propensity and on morphology of the resulting nanoribbon structures. Additional studies were conducted to determine the effects of incorporating amino acids of differing steric profile in the hydrophobic core (Ac‐X1KFEFKFE‐NH2 and Ac‐(X1,5KFE)‐NH2 peptides, X = Trp or Bip). Spectroscopic analysis by circular dichroism (CD) and Fourier transform infrared (FT‐IR) spectroscopy indicated β‐sheet formation for all variants. Self‐assembly rate increased with peptide hydrophobicity; increased molecular volume of the hydrophobic side chain groups did not appear to induce kinetic penalties on self‐assembly rates. Transmission electron microscopy (TEM) imaging indicated variation in fibril morphology as a function of amino acid in the X positions. This study confirms that hydrophobicity of amphipathic Ac‐(XKXE)2‐NH2 peptides correlates to self‐assembly propensity and that the hydrophobic core of the resulting nanoribbon bilayers has a significant capacity to accommodate sterically demanding functional groups. These findings provide insight that may be used to guide the exploitation of self‐assembled amphipathic peptides as functional biomaterials.
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Affiliation(s)
| | - Crystal G Morales
- Department of Biological Sciences, Northern Arizona University, Flagstaff, Arizona, USA
| | - Sharon L Eltiste
- Department of Chemistry and Biochemistry, Center for Materials Interfaces in Research and Applications (¡MIRA!), Northern Arizona University, Flagstaff, Arizona, USA
| | | | - Naomi R Lee
- Department of Chemistry and Biochemistry, Center for Materials Interfaces in Research and Applications (¡MIRA!), Northern Arizona University, Flagstaff, Arizona, USA
| | - Bradley L Nilsson
- Department of Chemistry, University of Rochester, Rochester, New York, USA
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Abstract
American Indian and Alaska Native women had approximately twice the incidence of cervical cancer as white women. Preventive measures for cervical cancer rely on screening and HPV vaccination. However, vaccine series completion and catch-up vaccinations for eligible adults are low across all racial/ethnic groups. Therefore, the aim of this study was to identify gaps in knowledge and evaluate the attitudes toward HPV and the vaccine among AIANs with various levels of training in the STEM and health-related fields. A survey was used to collect data from audience members at two national conferences geared towards American Indian and Alaska Natives in health and STEM fields in September 2017. A vignette study was administered via a live electronic poll to test knowledge (true/false questions), attitudes, and to collect demographic information. Respondents self-identified as primarily American Indian and Alaska Native (74%), pursuing or completed a graduate degree (67%), and female (85%). Most respondents (86%) were aware of HPV-associated cancer in men. However, most (48-90%) answered incorrectly to detailed true/false statements about HPV and available vaccines. After educational information was provided, opinions collected via vignettes highlighted mainly positive attitudes toward vaccination; specifically, that vaccines are safe and all eligible community members should be vaccinated (75% and 84%, respectively). We observed that our respondents with higher educational attainment still lacked accurate knowledge pertaining to HPV and the vaccine. Overall, continued education about HPV and the vaccine is needed across all levels of education including American Indian and Alaska Native community members and health professionals.
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Affiliation(s)
- Naomi R Lee
- Department of Molecular Genetics and Microbiology, University of New Mexico, Albuquerque, NM, USA. Department of Chemistry and Biochemistry, Northern Arizona University, Flagstaff, AZ, USA
| | - Carolyn J Noonan
- Partnerships for Native Health, Initiative for Research and Education to Advance Community Health, College of Nursing, Washington State University, Seattle, WA, USA
| | - Lonnie Nelson
- Partnerships for Native Health, Initiative for Research and Education to Advance Community Health, College of Nursing, Washington State University, Seattle, WA, USA
| | - Jason G Umans
- MedStar Health Research Institute, Hyattsville, MD, USA. Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC, USA
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Lee NR, Winer RL, Cherne S, Noonan CJ, Nelson L, Gonzales AA, Umans JG, Buchwald D. Human Papillomavirus Prevalence Among American Indian Women of the Great Plains. J Infect Dis 2019; 219:908-915. [PMID: 30321371 PMCID: PMC6386810 DOI: 10.1093/infdis/jiy600] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 10/08/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND High-risk human papillomavirus (hrHPV) causes cervical cancer. In the United States, approximately 40% of women aged 14-59 years from all racial and ethnic groups are infected with HPV, and prevalence typically declines with age. However, American Indian (AI) women are insufficiently sampled to permit a population-specific estimate of hrHPV prevalence. METHODS Vaginal swabs were self-collected by 698 AI women aged 21-65 years from a tribal community in the Great Plains. We estimated the population prevalence of hrHPV and identified predominant genotypes. RESULTS The combined prevalence of hrHPV genotypes 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, and 68 was 34.8%. HPV-51 (7.6%), HPV-58 (5.3%), HPV-52 (4.3%), HPV-18 (4.3%), and HPV-16 (3.9%) were most prevalent. hrHPV prevalence declined with age, from 42.2% in women aged 21-24 years to 27.9% in women aged 50-65 years. CONCLUSIONS HPV-51 was the single most prevalent oncogenic genotype. The combined prevalence of hrHPV among AI women in our sample was high, particularly among women aged 50-65 years, for whom hrHPV prevalence was approximately triple that of other races. Cervical cancer screening efforts should be increased, particularly among women from the community aged 30 years and older.
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Affiliation(s)
- Naomi R Lee
- Department of Molecular Genetics and Microbiology, University of New Mexico, Albuquerque
| | - Rachel L Winer
- Department of Epidemiology, University of Washington, Seattle
| | - Stephen Cherne
- Department of Epidemiology, University of Washington, Seattle
| | - Carolyn J Noonan
- Elson S. Floyd College of Medicine, Initiative for Research and Education to Advance Community Health, Washington State University, Seattle
| | - Lonnie Nelson
- Elson S. Floyd College of Medicine, Initiative for Research and Education to Advance Community Health, Washington State University, Seattle
| | - Angela A Gonzales
- Department of Justice and Social Inquiry, School of Social Transformation, Arizona State University, Tempe
| | - Jason G Umans
- MedStar Health Research Institute, Hyattsville, Maryland
- Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, District of Columbia
| | - Dedra Buchwald
- Elson S. Floyd College of Medicine, Initiative for Research and Education to Advance Community Health, Washington State University, Seattle
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Yoon NY, Wang HY, Jun M, Jung M, Kim DH, Lee NR, Hong KW, Seo SJ, Choi E, Lee J, Lee H, Choi EH. Simultaneous detection of barrier- and immune-related gene variations in patients with atopic dermatitis by reverse blot hybridization assay. Clin Exp Dermatol 2018; 43:430-436. [PMID: 29380403 DOI: 10.1111/ced.13367] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2017] [Indexed: 01/06/2023]
Abstract
BACKGROUND Hereditary factors are involved in the pathogenesis of atopic dermatitis (AD). However, AD-related gene variations are significantly different across ethnicities. AIM To identify mutations and single-nucleotide polymorphisms (SNPs) in barrier- or immune-related genes from Korean patients with AD and compare the variations with those observed in nonatopic healthy controls (HCs), and to use novel reverse blot hybridization assay (REBA) for AD-related gene variants. METHODS We carried out REBA to simultaneously detect variations in genes related to barrier or immune function, namely, FLG, SPINK5, KLK7, DEFB1, TNFα, KDR, FCER1A, IL4, IL5,IL5RA, IL9, IL10, IL12, IL12R, IL13 and IL18, from Korean patients with AD, and compared the variation to that in nonatopic healthy controls. RESULTS The homozygous mutants of KLK7 and SPINK5-2475, and the heterozygous mutants of FLG 3321delA, SPINK5-1156, DEFB1, KDR, IL5RA, IL9 and IL12RB1 were significantly more frequent in AD. It has been predicted that the larger the number of gene variants, the higher the odds ratio of AD prevalence; however, we did not find any significant correlation between the number of gene variants and AD severity. CONCLUSION Using REBA, we identified more genetic variants that can predict AD occurrence. We also verified that REBA can be used to easily and accurately detect multiple AD-related gene variants simultaneously. In addition, we identified a correlation between KLK7 mutation and AD in Koreans, which is the first such report, to our knowledge.
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Affiliation(s)
- N Y Yoon
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - H Y Wang
- M&D, Inc., Wonju Eco Environmental Technology Center, Wonju, Republic of Korea
| | - M Jun
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - M Jung
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - D H Kim
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - N R Lee
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - K-W Hong
- TheragenEtex Bio Institute, Suwon, Republic of Korea
| | - S J Seo
- Department of Dermatology, Chung-Ang University Hospital, Seoul, Republic of Korea
| | - E Choi
- Institute of Lifestyle Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - J Lee
- Department of Biomedical Laboratory Science, Yonsei University College of Health Sciences, Wonju, Republic of Korea
| | - H Lee
- Department of Biomedical Laboratory Science, Yonsei University College of Health Sciences, Wonju, Republic of Korea
| | - E H Choi
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
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11
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Ko JH, Lee NR, Joo EJ, Moon SY, Choi JK, Park DA, Peck KR. Appropriate non-carbapenems are not inferior to carbapenems as initial empirical therapy for bacteremia caused by extended-spectrum beta-lactamase-producing Enterobacteriaceae: a propensity score weighted multicenter cohort study. Eur J Clin Microbiol Infect Dis 2017; 37:305-311. [PMID: 29177611 DOI: 10.1007/s10096-017-3133-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 11/02/2017] [Indexed: 02/07/2023]
Abstract
The efficacy of empirical non-carbapenem antibiotics for extended-spectrum beta-lactamase-producing Enterobacteriaceae bacteremia (ESBL-B) is still inconclusive. We conducted a multicenter retrospective cohort study to evaluate the efficacy of empirical non-carbapenem antibiotics for treating ESBL-B. Electronic medical records of individuals who were diagnosed with ESBL-B were reviewed between January 2010 and December 2014 at four university hospitals in Korea. Patients were classified into non-carbapenem and carbapenem groups according to the empirical antibiotic regimen. Patients treated with appropriate empirical antibiotics and who subsequently received carbapenems as definitive therapy were included in the analysis. The inverse probability of treatment weights, a statistical method that adjusts baseline statistics by giving weights based on propensity score, was used. During the study period, 232 adequately treated patients with ESBL-B were included in the analysis: 49 patients in the non-carbapenem group and 183 in the carbapenem group. The baseline characteristics and severity of infection were similar after propensity score weighting. The 30-day mortality rates for the two groups were not statistically significantly different (non-carbapenems 6.3% and carbapenems 11.4%; P = 0.42). In a multivariate analysis, empirical treatment with non-carbapenem antibiotics was not associated with 30-day all-cause mortality (HR 1.02, 95% CI 0.99-1.06, P = 0.14). In a subgroup analysis, empirical treatment with piperacillin-tazobactam was also not associated with 30-day all-cause mortality (HR 1.21, 95% CI 0.37-4.00, P = 0.75). Appropriate non-carbapenems were not inferior to carbapenems as initial empirical therapy for ESBL-B.
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Affiliation(s)
- J-H Ko
- Division of Infectious Diseases, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-ro, Gangnam-gu, Seoul, 135-710, Republic of Korea.,Division of Infectious Diseases, Department of Internal Medicine, Armed Forces Capital Hospital, Seongnam, South Korea
| | - N R Lee
- Division for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul, Republic of Korea
| | - E-J Joo
- Division of Infectious Diseases, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S-Y Moon
- Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine, Seoul, Republic of Korea
| | - J-K Choi
- Department of Internal Medicine, Bucheon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
| | - D A Park
- Division for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul, Republic of Korea.
| | - K R Peck
- Division of Infectious Diseases, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-ro, Gangnam-gu, Seoul, 135-710, Republic of Korea.
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12
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Joo EJ, Park DA, Lee NR, Moon SY, Choi JK, Ko JH, Peck KR. Impact of appropriateness of empiric therapy on outcomes in community-onset bacteremia by extended-spectrum-β-lactamase producing Escherichia coli and Klebisella pneumoniae definitively treated with carbapenems. Eur J Clin Microbiol Infect Dis 2017. [PMID: 28643188 DOI: 10.1007/s10096-017-3031-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Despite a significant increase of bloodstream infection caused by extended-spectrum-β-lactamase (ESBL)-producing Enterobacteriaceae in the community-setting, information regarding clinical outcomes of inappropriate empiric therapy (IAT) in patients with those infections is limited. A multicenter-retrospective cohort study was conducted in four hospitals. A total of 249 adults were identified to have community-onset bacteremia caused by ESBL-producing Escherichia coli and Klebsiella pneumoniae, and definitively treated with carbapenems. According to the appropriateness of empiric therapy, individuals were divided into an appropriate empiric therapy (AT) group (n = 106) and IAT group (n = 143). Patients who received AT showed more severe underlying conditions including underlying solid cancer, healthcare-association and intensive care unit (ICU) care, compared to the IAT group. Primary bacteremia was more commonly found in the AT group than in the IAT group, while urinary tract infection predominated more frequently in the IAT group than in the AT group. Multivariate analysis using propensity score analysis indicated that inappropriateness of empiric therapy was not an independent risk factor for 30-day death. ICU care, respiratory tract infection and underlying liver, renal and connective tissue diseases were significantly associated with mortality. In patients with bloodstream infections caused by ESBL-producing E. coli and K. pneumoniae in the community-setting, delay in appropriate therapy was not associated with an increased rate of death if the patients were definitively treated with carbapenems.
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Affiliation(s)
- E-J Joo
- Division of Infectious Diseases, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - D A Park
- Division for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul, South Korea
| | - N R Lee
- Division for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul, South Korea
| | - S-Y Moon
- Division of Infectious Diseases, Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Kyung Hee Univeristy College of Medicine, Seoul, South Korea
| | - J-K Choi
- Department of Internal Medicine, Bucheon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, South Korea
| | - J-H Ko
- Division of Infectious Diseases, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - K R Peck
- Division of Infectious Diseases, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea.
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13
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Lee NR, Bowerman CJ, Nilsson BL. Sequence length determinants for self-assembly of amphipathic β-sheet peptides. Biopolymers 2016; 100:738-50. [PMID: 23553562 DOI: 10.1002/bip.22248] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 03/18/2013] [Accepted: 03/22/2013] [Indexed: 12/29/2022]
Abstract
Amphipathic peptides composed of alternating hydrophobic and hydrophilic amino acids are a privileged class of peptide, which have a high propensity to self-assemble into β-sheet fibrils. The Ac-(FKFE)2-NH2 peptide has been extensively studied and forms putative β-sheet bilayer fibrils in which the hydrophobic Phe side chains are organized to a single face of each constituent sheet; upon bilayer formation, these hydrophobic benzyl groups are sequestered in the hydrophobic core of the resulting fibril. In order for the Phe side chains to be uniformly displayed on one face of Ac-(FKFE)2-NH2 β-sheets, an antiparallel packing orientation in which one amino acid residue is unpaired must be adopted. Based on molecular models, we hypothesized that truncated seven amino acid derivatives of Ac-(FKFE)2-NH2 in which either the N-terminal Phe residue (Ac-KFEFKFE-NH2) or the C-terminal Glu residue (Ac-FKFEFKF-NH2) is eliminated should readily self-assemble into β-sheet bilayers in which all hydrogen bond and hydrophobic/charge interactions are satisfied. We found, however, that these minute changes in peptide sequence have unanticipated and dramatic effects on the self-assembly of each peptide. Ac-FKFEFKF-NH2 self-assembled into fibrils with unique morphology relative to the parent peptide, whereas the Ac-KFEFKFE-NH2 peptide had a strongly reduced propensity to self-assemble, even failing to self-assemble altogether under some conditions. These findings provide significant insight into the effect of sequence length and strand registry as well as hydrophobicity and charge on the self-assembly of simple amphipathic peptides to illuminate the possibility of tuning self-assembly processes and the resulting structures with minute changes to peptide sequence.
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Affiliation(s)
- Naomi R Lee
- Department of Chemistry, University of Rochester, Rochester, NY, 14627-0216
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14
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Lenroot RK, Blumenthal JD, Wallace GL, Clasen LS, Lee NR, Giedd JN. A case-control study of brain structure and behavioral characteristics in 47,XXX syndrome. Genes Brain Behav 2014; 13:841-9. [PMID: 25287572 DOI: 10.1111/gbb.12180] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 10/01/2014] [Accepted: 10/02/2014] [Indexed: 11/27/2022]
Abstract
Trisomy X, the presence of an extra X chromosome in females (47,XXX), is a relatively common but under-recognized chromosomal disorder associated with characteristic cognitive and behavioral features of varying severity. The objective of this study was to determine whether there were neuroanatomical differences in girls with Trisomy X that could relate to cognitive and behavioral differences characteristic of the disorder during childhood and adolescence. MRI scans were obtained on 35 girls with Trisomy X (mean age 11.4, SD 5.5) and 70 age- and sex-matched healthy controls. Cognitive and behavioral testing was also performed. Trisomy X girls underwent a semi-structured psychiatric interview. Regional brain volumes and cortical thickness were compared between the two groups. Total brain volume was significantly decreased in subjects with Trisomy X, as were all regional volumes with the exception of parietal gray matter. Differences in cortical thickness had a mixed pattern. The subjects with Trisomy X had thicker cortex in bilateral medial prefrontal cortex and right medial temporal lobe, but decreased cortical thickness in both lateral temporal lobes. The most common psychiatric disorders present in this sample of Trisomy X girls included anxiety disorders (40%), attention-deficit disorder (17%) and depressive disorders (11%). The most strongly affected brain regions are consistent with phenotypic characteristics such as language delay, poor executive function and heightened anxiety previously described in population-based studies of Trisomy X and also found in our sample.
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Affiliation(s)
- R K Lenroot
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia; Neuroscience Research Australia, Sydney, NSW, Australia
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Affiliation(s)
- Naomi R. Lee
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
| | - Charles J. Bowerman
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
| | - Bradley L. Nilsson
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
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Senguen FT, Lee NR, Gu X, Ryan DM, Doran TM, Anderson EA, Nilsson BL. Probing aromatic, hydrophobic, and steric effects on the self-assembly of an amyloid-β fragment peptide. ACTA ACUST UNITED AC 2011; 7:486-96. [DOI: 10.1039/c0mb00080a] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Yhim HY, Kwon DH, Lee NR, Song EK, Yim CY, Kwak JY. Linear IgA bullous dermatosis following autologous PBSC transplantation in a patient with non-Hodgkin's lymphoma. Bone Marrow Transplant 2010; 46:156-8. [DOI: 10.1038/bmt.2010.73] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
Formation of biofilm is known to be strongly dependent on substrates including topography, materials, and chemical treatment. In this study, a variety of substrates are tested for understanding biofilm formation. Sheets of aluminum, steel, rubber, and polypropylene have been used to examine their effects on formation of Pseudomonas aeruginosa biofilm. In particular, the morphological variation, transition, and adhesiveness of biofilm were investigated through local measurement by atomic force microscopy (AFM). Mechanism of removing biofilm from adhering to substrate is also analyzed, thus the understanding of the mechanism can be potentially useful to prevent the biofilm formation. The results reveal that formation of biofilm can remain on rough surface regardless of substrates in hot water, which may easily induce extra-polymeric substances detachment from bacterial surface. By probing using AFM, local force-distance characterization of extra-cellular materials extracted from the bacteria can exhibit the progress of the biofilm formation and functional complexities.
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Affiliation(s)
- Y J Oh
- Department of Physics, Ewha Womans University, Seoul 120-750, Korea
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19
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Lee NR, Kwon DY, Min KH. Cloning and sequence analyses of a 2,3-dihydroxybiphenyl 1,2-dioxygenase gene ( bphC) from Comamonas sp. SMN4 for phylogenetic and structural analysis. J Ind Microbiol Biotechnol 2003; 30:245-50. [PMID: 12761654 DOI: 10.1007/s10295-003-0039-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2001] [Accepted: 01/22/2003] [Indexed: 11/25/2022]
Abstract
A genomic library of biphenyl-degrading Comamonas sp. SMN4 for isolating fragments containing the 2,3-dihydroxybiphenyl 1,2-dioxygenase (23DBDO) gene was constructed. The smallest subclone (pNPX9) encoding 23DBDO activity was sequenced and analyzed. The C-terminal domain of 23DBDO from Comamonas sp. SMN4 had five catalytically essential residues and was more highly conserved than the N-terminal domain. Phylogenetic and structural relationships of 23DBDO from Comamonas sp. SMN4 were analyzed.
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Affiliation(s)
- N R Lee
- Korea Food Research Institute, Baekhyon, Poondang, Songnam, 463-746, Kyongki-do, Korea
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20
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Chung YS, Lee NR, Cheon CL, Song ES, Lee MS, Kim Y, Min KH. Molecular cloning of the nahG gene encoding salicylate hydroxylase from Pseudomonas fluorescens. Mol Cells 2001; 11:105-9. [PMID: 11266111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
A gene encoding the salicylate hydroxylase was cloned from the genomic DNA of Pseudomonas fluorescens SME11. The DNA fragment containing the nahG gene for the salicylate hydroxylase was mapped with restriction endonucleases and sequenced. The DNA fragment contained an ORF of 1,305 bp encoding a polypeptide of 434 amino acid residues. The nucleotide and amino acid sequences of the salicylate hydroxylase revealed several conserved regions with those of the enzyme encoded in P. putida PpG7: The homology of the nucleotide sequence is 83% and that of amino acid sequence is 72%. We found large conserved regions of the amino acid sequence at FAD and NADH binding regions. The FAD binding site is located at the amino terminal region and a lysine residue functions as a NADH-binding site.
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Affiliation(s)
- Y S Chung
- Department of Biological Science, Sookmyung Women's University, Seoul, Korea
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Abstract
BACKGROUND About half of the world population is infected with H. pylori, but the transmission and the source of this infection are still unclear. Recently, dental plaque (DP) and saliva have been implicated as possible sources of H. pylori infection. This study was done to investigate the detection rates of H. pylori in the DP and saliva by use of PCR depending on H. pylori infection state of gastric mucosa. METHODS In 46 subjects, gastric H. pylori colonization was evaluated with CLO test, microscopy of Gram stained mucosal smear, culture and histology after modified Giemsa staining in the antrum and body, respectively. A patient was regarded as H. pylori positive if one or more of the four aforementioned test methods demonstrated H. pylori colonization of the gastric mucosa. For detection of H. pylori in the DP and saliva, PCR assay was done with ET4-U and ET4-L primers. To estimate the sensitivity and specificity of this PCR, H. pylori positivity was evaluated in the antrum and body, separately. RESULTS The sensitivity of mucosal PCR was 50.0% (27/54) and the specificity 86.8% (33/38). When a subject was regarded as H. pyloi positive, if either antrum or body mucosal H. pylori was is positive, the positive rate of mucosal PCR was 62.1% (18 subjects) in the 29 H. pylori-positive and 17.6% (3 subjects) in the 17 H. pylori-negative subjects. DP PCR was positive in 2 of 29 H. pylori-positive subjects (6.9%) and none in the 17 H. pylori-negative (0%). Saliva PCR was positive in 4 of 14 H. pylori-positive subjects (28.6%) and none of 6 H. pylori-negative (0%). CONCLUSION The detection rates of H. pylori in DP and saliva by PCR were rather low, 6.9% and 28.6%, respectively, and these rates might have been underestimated by low sensitivity of the PCR method used in this study. However, the results that H. pylori was found in the DP and saliva suggest that the oral cavity can perform a role as a reservoir of H. pylori in Korea.
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Affiliation(s)
- N Kim
- Department of Internal Medicine, Kangnam General Hospital, Public Corporation, Seoul, Korea
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Abstract
PURPOSE The purpose of this study was to investigate the success of a staged surgical reconstruction of the upper airway for treatment of obstructive sleep apnea syndrome. PATIENTS AND METHODS Thirty-five patients with obstructive sleep apnea syndrome documented by nocturnal polysomnography were treated surgically with a staged protocol for reconstruction of the upper airway. All patients were evaluated preoperatively by a history and physical examination, including fiberoptic nasopharyngoscopy, oropharyngoscopy, and hypopharyngoscopy; cephalometric analysis; and laboratory polysomnography. All patients included were diagnosed with type II obstruction, with collapse at the oropharyngeal and hypopharyngeal levels. Stage I reconstruction consisted of uvulopalatopharyngoplasty (UPPP) by the Fujita method and anterior mandibular osteotomy (AMO) or inferior sagittal osteotomy (ISO) with genioglossus muscle advancement. If stage I was unsuccessful, patients were advanced to stage II and stage III, if necessary. Stage II reconstruction consisted of bimaxillary advancement with rigid fixation. Stage III reconstruction consisted of hyoid myotomy and advancement. RESULTS All patients underwent follow-up nocturnal polysomnography 4 to 6 months after the last surgical procedure. Most patients responded positively to stage I reconstruction (respiratory disturbance index [RDI] < 20, with O2 saturation 95+%). Twenty-four patients (69%) had postoperative RDIs of 20 or less. Of these, 11 patients (31%) had an RDI of five or fewer; seven patients (20%) had an RDI between 6 and 10, and six patients (17%) had an RDI between 10 and 20. The mean preoperative RDI was 53, and the mean postoperative RDI was 19. Of the three patients who elected to proceed to stage II reconstruction, all had a postoperative RDI of 10 or less (two patients [67%] had an RDI of 5 or less, and one patient [33%] had an RDI of 6 to 10). CONCLUSION This study showed that properly selected patients with obstructive sleep apnea syndrome benefit from a staged reconstruction of the upper airway.
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Affiliation(s)
- N R Lee
- Medical College of Virginia/Virginia Commonwealth University, Richmond, USA.
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Semple-Rowland SL, Lee NR, Van Hooser JP, Palczewski K, Baehr W. A null mutation in the photoreceptor guanylate cyclase gene causes the retinal degeneration chicken phenotype. Proc Natl Acad Sci U S A 1998; 95:1271-6. [PMID: 9448321 PMCID: PMC18742 DOI: 10.1073/pnas.95.3.1271] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/1997] [Accepted: 11/20/1997] [Indexed: 02/05/2023] Open
Abstract
The retinas of the retinal degeneration (rd) chicken are fully developed and possess normal morphology at hatching but fail to respond to light stimulation. Analyses of retinal cGMP, the internal messenger of phototransduction, show that the amount of cGMP in predegenerate, fully developed rd/rd photoreceptors is 5-10 times less than that seen in normal photoreceptor cells. We show that the low levels of cGMP in rd chicken retina are a consequence of a null mutation in the photoreceptor guanylate cyclase (GC1) gene. Thus, the rd chicken is a model for human Leber's congenital amaurosis. Absence of GC1 in rd retina prevents phototransduction and affects survival of rods and cones but does not interfere with normal photoreceptor development.
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Affiliation(s)
- S L Semple-Rowland
- University of Florida, Department of Neuroscience, College of Medicine and Brain Institute, Gainesville, FL 32610, USA.
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Abstract
BACKGROUND This 1-year randomized trial tested the efficacy of behavioral techniques for increasing mammography referrals by primary care physicians in small, community practices. METHODS Sixty-one practices were randomly assigned to one of three conditions: (1) education-only control, (2) education plus cue enhancement using mammography chart stickers, and (3) education plus cue enhancement plus feedback and token rewards. Quarterly chart audits of a defined sample (N = 11,716) of women patients 50 years of age or older were conducted to document mammography referrals, completions, and compliance. RESULTS Referral and completion rates increased from baseline to first quarter and gradually declined thereafter. Overall, these rates were higher in the cuing conditions than in the control condition. In contrast, compliance rates in both experimental conditions increased over the year while remaining static in the control condition, demonstrating a strong and continuing effect for cue enhancement. Compliance increases were greatest for physicians who were older, nonwhite, with a second speciality, in solo practice, not members of the AMA, not residency trained, and not board certified. CONCLUSIONS Chart stickers can significantly increase mammography utilization in small, community practices. These practices are an efficient route to reaching large numbers of older women in need of mammography screening.
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Affiliation(s)
- K E Grady
- Massachusetts Institute of Behavioral Medicine, Inc., East Longmeadow, Massachusetts 01028, USA
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Lee NR, Hwang MO, Jung GH, Kim YS, Min KH. Physical structure and expression of alkBA encoding alkane hydroxylase and rubredoxin reductase from Pseudomonas maltophilia. Biochem Biophys Res Commun 1996; 218:17-21. [PMID: 8573125 DOI: 10.1006/bbrc.1996.0004] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The structural genes of the Pseudomonas maltophilia alk system, which are localized on the OCT plasmid were cloned as a 4.2-kilobase pair Hind III fragment. This fragment contains sequences for alkane hydroxylase gene (alkB) and rubredoxin reductase gene (alkA), respectively. The alkB gene encodes a 373-amino acid polypeptide (47.4 kD) that can be expressed at high levels in Pseudomonas and Escherichia coli. The alkBA genes were complemented with alkane hydroxylation in both bacteria. This result shows that alkBA gene is essential for alkane hydroxylation since chromosomal loci have been encoded for other enzymes involved in fatty acid oxidation.
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Affiliation(s)
- N R Lee
- Department of Biology, Sookmyung Women's University, Seoul, Korea
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27
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Abstract
The pineal gland synthesizes its hormone melatonin (O-methyl-N-acetylserotonin) from serotonin. Acetyl-CoA: serotonin N-acetyltransferase (SNAT), the enzyme that catalyzes the committed step in this biosynthesis, is largely restricted to the pineal gland and is regulated by adrenergic and circadian mechanisms. Another enzyme, acetyl-CoA: arylamine N-acetyltransferase (ANAT), having an apparently similar activity, is also present in the pineal. This enzyme, however, is not rhythmically regulated. SNAT activity of cultured chick pineal cells was obtained without ANAT after ammonium sulfate precipitation. ANAT activity was retained without SNAT activity after pre-incubation at 37 degrees C. Thus, each enzyme could be examined independently. Overlap in substrate specificity between the two enzymes was minimal. Kinetic analysis of the separated enzyme activities revealed that while SNAT operates via a random or ordered bi bi mechanism, ANAT catalysis occurs through a ping pong bi bi mechanism with substrate inhibition by acetyl-CoA. By size-exclusion chromatography, ANAT was confirmed to be 30-35 kDa, and SNAT was estimated at 15-20 kDa. Taken together, these results indicate that the two enzymes differ in their structure, reactivity, stability, and mechanism of catalysis.
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Affiliation(s)
- M S Wolfe
- Section on Biochemical Pharmacology, National Institute of Mental Health, Bethesda, MD 20892
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Grady KE, Reisine ST, Fifield J, Lee NR, McVay J, Kelsey ME. The impact of Hurricane Hugo and the San Francisco earthquake on a sample of people with rheumatoid arthritis. Arthritis Care Res 1991; 4:106-10. [PMID: 11188590 DOI: 10.1002/art.1790040208] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The health effects of two natural disasters on 32 people with rheumatoid arthritis (RA) were assessed during the second-year wave of interviews in an ongoing 3-year study. Although the severity of Hurricane Hugo exceeded that of the San Francisco earthquake, no significant differences in health impacts were found. Both groups reported significantly increased ratings of RA activity, pain, and depression compared with ratings during the first year. However, comparison with the rest of the sample (n = 767) showed that increases in disease activity and pain were a general phenomenon but that the increase in depression was unique to the disaster subsample. Physician health status assessments also indicated that those who experienced the disaster were more likely to be classified in later stages of the disease subsequent to the disaster and were more likely to experience flares. These results suggest that people with RA may constitute a special high-risk population for adverse health effects after natural disasters.
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Affiliation(s)
- K E Grady
- Massachusetts Institute of Behavioral Medicine, Inc., 1145 Main Street, Springfield, MA 01103, USA
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Campbell RL, Lee NR, Shamaskin RG, Priest JH, Rah KH. Evaluation of rebreathing in various modifications of the Mapleson-D system. J Oral Maxillofac Surg 1985; 43:574-9. [PMID: 3925098 DOI: 10.1016/0278-2391(85)90123-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Several modifications of the Bain system for nitrous oxide analgesia or general anesthesia were tested for rebreathing and retention of CO2. The classic Bain circuit causes the most rebreathing as measured by the fractional concentration of CO2 in a sample of inspired gas (FICO2), but stimulation of the respiratory system seems to allow near normal end tidal CO2 and arterial CO2 tensions. The most predictable systems that have the least amount of rebreathing are those that have the least dead space.
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Rah KH, Lee NR, McDougle ML, Campbell RL. Carbon dioxide absorption system with a simple modification of the Bain circuit. Anesth Prog 1982; 29:135-7. [PMID: 6819788 PMCID: PMC2515581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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