DOCSLIB.ORG

J I T M M 2 0

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
J I T M M 2 0 JOINT INTERNATIONAL TROPICAL MEDICINE MEETING 2018 “INNOVATION, TRANSLATION, AND IMPACT IN TROPICAL MEDICINE” 12 – 14 DECEMBER 2018 AMARI WATERGATE HOTEL, BANGKOK, THAILAND ABSTRACTS Oral Presentations J I T M M 2 0 1 8 Organizers 4 Faculty of Tropical Medicine, Mahidol University 4 SEAMEO TROPMED Network 4 TROPMED Alumni Association 4 The Parasitology and Tropical Medicine Association of Thailand Co-organizers 9 Department of Disease Control Ministry of Public Health (MOPH) 9 Mahidol - Oxford Tropical Medicine Research Unit (MORU) 2 Wednesday 12 December 2018 Opening Session 09.00-09.45 Watergate Ballroom OPENING CEREMONY BY ORGANIZERS AND CO-ORGANIZERS Report by: Prof. Srivicha Krudsood Chair, JITMM2018 Scientific Committee WELCOME ADDRESS Dr. Sombat Thanphasertsuk Senior Expert in Prevention Medicine, Department of Disease Control, Thailand Ministry of Public Health WELCOME ADDRESS Mr. David Burton Chief Operating Officer, Mahidol-Oxford Tropical Medicine Research Unit (MORU) OPENING REMARKS Assoc. Prof. Pratap Singhasivanon Chairman, JITMM2018 Organizing Committee TROPMED Alumni Award Presentation Presented by: Assoc. Prof. Supranee Changbumrung Joint International Tropical Medicine Meeting (JITMM) 2018 “INNOVATION, TRANSLATION, AND IMPACT IN TROPICAL MEDICINE” 3 AWARD RECIPIENTS: Prof. Akira Kaneko Professor of Global Health, Department of Microbiology, Tumor and Cell biology, Karolinska Institutet, Sweden Prof. Dr. Tawadchai Suppadit Vice President, Planning and Development Strategies, Walailak University, Thailand Dr. Twatchai Srestasupana Director, Maesot General Hospital, Mae Sot, Tak, Thailand Joint International Tropical Medicine Meeting (JITMM) 2018 “INNOVATION, TRANSLATION, AND IMPACT IN TROPICAL MEDICINE” 4 Wednesday 12 December 2018 09.45-10.30 Watergate Ballroom S1: The 24th Chamlong-Tranakchit Lecture Chairperson: Pratap Singhasivanon Keynote Speaker: The safe and effective radical cure of malaria Prof. Ric Price Menzies School of Health Research, Darwin, Australia University of Oxford, United Kingdom Joint International Tropical Medicine Meeting (JITMM) 2018 “INNOVATION, TRANSLATION, AND IMPACT IN TROPICAL MEDICINE” Oral Presentations 5 ׀ ABSTRACTS Abstract No. : ABS0001272 The safe and effective radical cure of malaria Ric Price1,2 1 Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, UK; 2 Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia The leaders of 18 malaria endemic countries have set ambitious goals to eliminate malaria from the Asia Pacific region by 2030. Whilst there has been significant progress in reducing the burden of malaria, these gains are fragile. The ultimate goal of malaria elimination is threatened by a variety of challenges, particularly the spread of multidrug resistant P. falciparum and a rising proportion of infections due to non-falciparum malaria. These challenges highlight the importance of the main themes of this conference: innovation, translation, and impact. The timely elimination of malaria from the Asia Pacific will require expansion of malaria control activities to include active case detection and the widespread implementation of the effective radical cure of malaria, in which all stages of the parasite are targeted. Vivax’s ability to form dormant liver stages (hypnozoites) and to recur weeks to months after a primary infection requires treatment of both the blood and liver stages of the parasite. Currently, the only widely available drug to eliminate hypnozoites from the human host is primaquine a drug that can cause significant risk of haemolysis in individuals with G6PD deficiency. The prolonged treatment course and requirement for G6PD testing are major obstacles to healthcare providers, who are often reluctant to prescribe PQ, and patients, who are reluctant to take a full course of treatment. New tools have been developed to overcome these, including novel point of care devices and short course treatment regimens. These innovations will be discussed with regard to their translation into policy and their impact upon the burden of disease. Keyword : malaria, vivax, radical cure Joint International Tropical Medicine Meeting (JITMM) 2018 “INNOVATION, TRANSLATION, AND IMPACT IN TROPICAL MEDICINE” 6 Wednesday 12 December 2018 11.00-12.30 Room A S2: Ivermectin for malaria elimination Chairpersons: 1. Kesinee Chotivanich 2. Joel Tarning Invited Speakers: Ivermectin for malaria elimination - clinical trials Kevin Kobylinski Armed Forces Research Institute of Medical Sciences (AFRIMS) Evaluating the effect of ivermectin B1a and B1b compounds against the malaria vector Anopheles dirus Narenrit Wamaket Armed Forces Research Institute of Medical Sciences (AFRIMS) Ivermectin metabolites Phornpimon Tipthara Mahidol-Oxford Tropical Medicine Research Unit (MORU) Ivermectin inhibits P. cynomolgi and P. falciparum liver stage development John H Adams University of South Florida Joint International Tropical Medicine Meeting (JITMM) 2018 “INNOVATION, TRANSLATION, AND IMPACT IN TROPICAL MEDICINE” Oral Presentations 7 ׀ ABSTRACTS Abstract No. : ABS0001316 Ivermectin for Malaria Elimination - Clinical Trials Kevin C. Kobylinski1, Podjanee Jittamala2, Borimas Hanboonkunupakarn3,4, Sasithon Pukrittayakamee3, Kanchana Pantuwatana1, Siriporn Phasomkusolsil1, Silas A. Davidson1, Markus Winterberg4,5, Richard Hoglund4,5, Mavuto Mukaka4,5, Rob W. van der Pluijm4,5, Arjen Dondorp4,5, Nicholas P. J. Day4,5, Nicholas J. White4,5, Joel Tarning4,5 1 Department of Entomology, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand 2 Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand 3 Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand 4 Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand 5 Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom Ivermectin mass drug administration is being evaluated as a potential new vector control tool to aid malaria elimination efforts around the globe. Two clinical trials have recently been completed investigating the safety, tolerability, pharmacokinetics, and mosquito-lethal effect of ivermectin and dihydroartemisinin-piperaquine. A study in Kenya evaluated three day regimens of ivermectin at 300 or 600 μg/kg with dihydroartemisinin-piperaquine in Plasmodium falciparum infected persons, while a study in Thailand evaluated single dose administration of ivermectin at 400 μg/kg with dihydroartemisinin- piperaquine and primaquine in healthy volunteers. In a few volunteers, there was an increase in liver enzymes when ivermectin and dihydroartemisinin- piperaquine were co-administered which requires further investigation. Interestingly, both studies observed much higher than initially predicted ivermectin mosquito-lethal effects. Pharmacokinetic analyses demonstrated that ivermectin bioavailability was substantially increased when co- administered with dihydroartemisinin-piperaquine. Another contributing factor to increased mosquito lethality could be the possibility of ivermectin metabolites with mosquito-lethal effect. Several ivermectin mass drug administration field trials for malaria control are underway in Africa and Southeast Asia, each with their own unique approaches to control malaria which will be presented here. Keyword : Ivermectin, Plasmodium falciparum, malaria, Africa, Southeast Asia Joint International Tropical Medicine Meeting (JITMM) 2018 “INNOVATION, TRANSLATION, AND IMPACT IN TROPICAL MEDICINE” Oral Presentations ׀ ABSTRACTS 8 Abstract No. : ABS0001317 Evaluating the effect of Ivermectin B1a and B1b compounds against the malaria vector Anopheles dirus 1,2 Narenrit Wamaket , Oranicha Khamprapa 1,2, Siriporn Phasomkusolsil 2, Silas Davidson 2, Patchara Sriwichai 3, Phornpimon Tipthara 4, Markus Winterberg 4, Joel Tarning 4, Nicholas White 4, Jetsumon Sattabongkot 1, Kevin Kobylinski 2 1 Mahidol Vivax Research Unit, Faculty of Tropical Medicine, Mahidol University 2 Department of Entomology, Armed Forces Research Institute of Medical Sciences 3 Department of Medical Entomology, Faculty of Tropical Medicine, Mahidol University 4 Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University Ivermectin (IVM) is particularly potent against Anopheline mosquitoes, causing significant mortality, delayed re-feeding, and reduced fertility when ingested through a blood meal. In nature, IVM is a mixture of two homologs, 22, 23- dihydroavermectin B1a (IVM B1a) and 22, 23-dihydroavermectin B1b (IVM B1b) at a ratio of >90% and <10% respectively. Both structures are metabolized by similar pathways in the vertebrate. A recent study in snails demonstrated that the minor IVM B1b is the lethal component, while the major IVM B1a component had no effect. Here, IVM compounds in vitro activity was assessed by spiking human blood with various concentrations of IVM parent compound, IVM B1a and IVM B1b, blood feeding to Anopheles dirus and monitoring subsequent mortality to determine the lethal concentration that kills 50% (LC50) of mosquitoes. This study present for the first time, the in vitro impact of IVM B1a, and IVM B1b on An. dirus survival. These results will be used to guide discovery of which IVM metabolites possess mosquito-lethal effect. Keyword : Ivermectin
Load more

Recommended publications
  • Phytochemical Profiles of Black, Red, Brown, and White Rice from The
    Article pubs.acs.org/JAFC Phytochemical Profiles of Black, Red, Brown, and White Rice from the Camargue Region of France Gema Pereira-Caro,† Gerard Cros,‡ Takao Yokota,¶ and Alan Crozier*,† † Joseph Black Building, School of Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, United Kingdom ‡ Laboratoire de Pharmacologie, CNRS UMR 5247 and UniversitéMontpellier 1 and 2, Institut des Biomoleculeś Max Mousseron, Facultéde Pharmacie, 15 avenue Charles Flahault, Montpellier 34093 cedex 05, France ¶ Department of Biosciences, Teikyo University, Utsunomiya 320-8551, Japan ABSTRACT: Secondary metabolites in black, red, brown, and white rice grown in the Camargue region of France were investigated using HPLC-PDA-MS2. The main compounds in black rice were anthocyanins (3.5 mg/g), with cyanidin 3-O- glucoside and peonidin 3-O-glucoside predominating, followed by flavones and flavonols (0.5 mg/g) and flavan-3-ols (0.3 mg/g), which comprised monomeric and oligomeric constituents. Significant quantities of γ-oryzanols, including 24-methylenecy- cloartenol, campesterol, cycloartenol, and β-sitosterol ferulates, were also detected along with lower levels of carotenoids (6.5 μg/ g). Red rice was characterized by a high amount of oligomeric procyanidins (0.2 mg/g), which accounted >60% of secondary metabolite content with carotenoids and γ-oryzanol comprising 26.7%, whereas flavones, flavonols and anthocyanins were <9%. Brown and white rice contained lower quantities of phytochemicals, in the form of flavones/flavonols (21−24 μg/g) and γ- oryzanol (12.3−8.2 μg/g), together with trace levels of the carotenoids lutein and zeaxanthin. Neither anthocyanins nor procyanidins were detected in brown and white rice.
    [Show full text]
  • Research Article Effect of Microwave Cooking on Quality of Riceberry Rice (Oryza Sativa L.)
    Hindawi Journal of Food Quality Volume 2020, Article ID 4350274, 9 pages https://doi.org/10.1155/2020/4350274 Research Article Effect of Microwave Cooking on Quality of Riceberry Rice (Oryza sativa L.) Lyda Chin, Nantawan Therdthai , and Wannasawat Ratphitagsanti Department of Product Development, Faculty of Agro-Industry, Kasetsart University, Bangkok 10900, #ailand Correspondence should be addressed to Nantawan erdthai; [email protected] Received 9 October 2019; Revised 8 August 2020; Accepted 13 August 2020; Published 28 August 2020 Academic Editor: Mar´ıa B. Pe´rez-Gago Copyright © 2020 Lyda Chin et al. is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Microwaves have been applied for cooking, warming, and thawing food for many years. Microwave heating differs from conventional heating and may cause variation in the food quality. is study determined the quality of Riceberry rice (Oryza sativa L.) after microwave cooking using various rice-to-water ratios at three power levels (360, 600, and 900 W). e texture of all microwave-cooked samples was in the range 162.35 ± 5.86 to 180.11 ± 7.17 N and was comparable to the conventionally cooked rice (162.03 N). e total phenolic content (TPC) and the antioxidant activity of the microwave-cooked rice were higher than those of the conventional-cooked rice. Microwave cooking appeared to keep the TPC in the range 241.15–246.89 mg GAE/100 g db and the antioxidant activities based on DPPH and ABTS assays in the ranges 134.24–137.15 and 302.80–311.85 mg·TE/100 g db, respectively.
    [Show full text]
  • Hung:Makieta 1.Qxd
    DOI: 10.2478/s11686-013-0155-5 © W. Stefan´ski Institute of Parasitology, PAS Acta Parasitologica, 2013, 58(3), 231–258; ISSN 1230-2821 INVITED REVIEW Global status of fish-borne zoonotic trematodiasis in humans Nguyen Manh Hung1, Henry Madsen2* and Bernard Fried3 1Department of Parasitology, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam; 2Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Thorvaldsensvej 57, 1871 Frederiksberg C, Denmark; 3Department of Biology, Lafayette College, Easton, PA 18042, United States Abstract Fishborne zoonotic trematodes (FZT), infecting humans and mammals worldwide, are reviewed and options for control dis- cussed. Fifty nine species belonging to 4 families, i.e. Opisthorchiidae (12 species), Echinostomatidae (10 species), Hetero- phyidae (36 species) and Nanophyetidae (1 species) are listed. Some trematodes, which are highly pathogenic for humans such as Clonorchis sinensis, Opisthorchis viverrini, O. felineus are discussed in detail, i.e. infection status in humans in endemic areas, clinical aspects, symptoms and pathology of disease caused by these flukes. Other liver fluke species of the Opisthorchiidae are briefly mentioned with information about their infection rate and geographical distribution. Intestinal flukes are reviewed at the family level. We also present information on the first and second intermediate hosts as well as on reservoir hosts and on habits of human eating raw or undercooked fish. Keywords Clonorchis, Opisthorchis, intestinal trematodes, liver trematodes, risk factors Fish-borne zoonotic trematodes with feces of their host and the eggs may reach water sources such as ponds, lakes, streams or rivers.
    [Show full text]
  • Molecular Detection of Human Parasitic Pathogens
    MOLECULAR DETECTION OF HUMAN PARASITIC PATHOGENS MOLECULAR DETECTION OF HUMAN PARASITIC PATHOGENS EDITED BY DONGYOU LIU Boca Raton London New York CRC Press is an imprint of the Taylor & Francis Group, an informa business CRC Press Taylor & Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487-2742 © 2013 by Taylor & Francis Group, LLC CRC Press is an imprint of Taylor & Francis Group, an Informa business No claim to original U.S. Government works Version Date: 20120608 International Standard Book Number-13: 978-1-4398-1243-3 (eBook - PDF) This book contains information obtained from authentic and highly regarded sources. Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity of all materials or the consequences of their use. The authors and publishers have attempted to trace the copyright holders of all material reproduced in this publication and apologize to copyright holders if permission to publish in this form has not been obtained. If any copyright material has not been acknowledged please write and let us know so we may rectify in any future reprint. Except as permitted under U.S. Copyright Law, no part of this book may be reprinted, reproduced, transmitted, or utilized in any form by any electronic, mechanical, or other means, now known or hereafter invented, including photocopying, microfilming, and recording, or in any information storage or retrieval system, without written permission from the publishers. For permission to photocopy or use material electronically from this work, please access www.copyright.com (http://www.copyright.com/) or contact the Copyright Clearance Center, Inc.
    [Show full text]
  • Effect of Preparation Method on Chemical Property of Different Thai Rice Variety
    Journal of Food and Nutrition Research, 2019, Vol. 7, No. 3, 231-236 Available online at http://pubs.sciepub.com/jfnr/7/3/8 Published by Science and Education Publishing DOI:10.12691/jfnr-7-3-8 Effect of Preparation Method on Chemical Property of Different Thai Rice Variety Cahyuning Isnaini1, Pattavara Pathomrungsiyounggul2, Nattaya Konsue1,* 1Food Science and Technology Program, School of Agro-Industry, Mae Fah Luang University, Muang, Chiang Rai 57100, Thailand 2Faculty of Agro-Industry, Chiang Mai University, Muang, Chiang Mai 50100, Thailand *Corresponding author: [email protected] Received January 15, 2019; Revised February 20, 2019; Accepted March 19, 2019 Abstract Improving benefits and reducing risk of staple food consumption are of interest among researchers nowadays. Rice is the major staple foods consumed in Asia. It has been reported that rice consumption has a positive association with the risk of chronic diseases. The effects of rice variety and preparation process on chemical characteristics of rice were investigated in the current study. Three Thai rice varieties, Khao Dok Mali 105 (KDML 105), Sao Hai (SH) and Riceberry (RB), underwent parboiling or non-parboiling as well as polishing or non- polishing prior to chemical property analysis. It was found that parboiling process possessed greater content of mineral as indicated by ash content as well as fiber and total phenolic content (TPC) and 2,2-diphenyl-1- picrylhydrazyl (DPPH) radical scavenging activity when compared to non-parboiling treatments, whereas the reduction in amylose and TAC content, GI value and starch digestibility were observed in this sample. On the other hand, polishing process led to reduction in ash, amylose, fiber, TPC and TAC content and DPPH values.
    [Show full text]
  • Platyhelminthes: Tricladida: Terricola) of the Australian Region
    ResearchOnline@JCU This file is part of the following reference: Winsor, Leigh (2003) Studies on the systematics and biogeography of terrestrial flatworms (Platyhelminthes: Tricladida: Terricola) of the Australian region. PhD thesis, James Cook University. Access to this file is available from: http://eprints.jcu.edu.au/24134/ The author has certified to JCU that they have made a reasonable effort to gain permission and acknowledge the owner of any third party copyright material included in this document. If you believe that this is not the case, please contact [email protected] and quote http://eprints.jcu.edu.au/24134/ Studies on the Systematics and Biogeography of Terrestrial Flatworms (Platyhelminthes: Tricladida: Terricola) of the Australian Region. Thesis submitted by LEIGH WINSOR MSc JCU, Dip.MLT, FAIMS, MSIA in March 2003 for the degree of Doctor of Philosophy in the Discipline of Zoology and Tropical Ecology within the School of Tropical Biology at James Cook University Frontispiece Platydemus manokwari Beauchamp, 1962 (Rhynchodemidae: Rhynchodeminae), 40 mm long, urban habitat, Townsville, north Queensland dry tropics, Australia. A molluscivorous species originally from Papua New Guinea which has been introduced to several countries in the Pacific region. Common. (photo L. Winsor). Bipalium kewense Moseley,1878 (Bipaliidae), 140mm long, Lissner Park, Charters Towers, north Queensland dry tropics, Australia. A cosmopolitan vermivorous species originally from Vietnam. Common. (photo L. Winsor). Fletchamia quinquelineata (Fletcher & Hamilton, 1888) (Geoplanidae: Caenoplaninae), 60 mm long, dry Ironbark forest, Maryborough, Victoria. Common. (photo L. Winsor). Tasmanoplana tasmaniana (Darwin, 1844) (Geoplanidae: Caenoplaninae), 35 mm long, tall open sclerophyll forest, Kamona, north eastern Tasmania, Australia.
    [Show full text]
  • Updated Molecular Phylogenetic Data for Opisthorchis Spp
    Dao et al. Parasites & Vectors (2017) 10:575 DOI 10.1186/s13071-017-2514-9 RESEARCH Open Access Updated molecular phylogenetic data for Opisthorchis spp. (Trematoda: Opisthorchioidea) from ducks in Vietnam Thanh Thi Ha Dao1,2,3, Thanh Thi Giang Nguyen1,2, Sarah Gabriël4, Khanh Linh Bui5, Pierre Dorny2,3* and Thanh Hoa Le6 Abstract Background: An opisthorchiid liver fluke was recently reported from ducks (Anas platyrhynchos) in Binh Dinh Province of Central Vietnam, and referred to as “Opisthorchis viverrini-like”. This species uses common cyprinoid fishes as second intermediate hosts as does Opisthorchis viverrini, with which it is sympatric in this province. In this study, we refer to the liver fluke from ducks as “Opisthorchis sp. BD2013”, and provide new sequence data from the mitochondrial (mt) genome and the nuclear ribosomal transcription unit. A phylogenetic analysis was conducted to clarify the basal taxonomic position of this species from ducks within the genus Opisthorchis (Digenea: Opisthorchiidae). Methods: Adults and eggs of liver flukes were collected from ducks, metacercariae from fishes (Puntius brevis, Rasbora aurotaenia, Esomus metallicus) and cercariae from snails (Bithynia funiculata) in different localities in Binh Dinh Province. From four developmental life stage samples (adults, eggs, metacercariae and cercariae), the complete cytochrome b (cob), nicotinamide dehydrogenase subunit 1 (nad1) and cytochrome c oxidase subunit 1 (cox1) genes, and near-complete 18S and partial 28S ribosomal DNA (rDNA) sequences were obtained by PCR-coupled sequencing. The alignments of nucleotide sequences of concatenated cob + nad1+cox1, and of concatenated 18S + 28S were separately subjected to phylogenetic analyses. Homologous sequences from other trematode species were included in each alignment.
    [Show full text]
  • Platydemus Manokwari Global Invasive Species Database (GISD)
    FULL ACCOUNT FOR: Platydemus manokwari Platydemus manokwari System: Terrestrial Kingdom Phylum Class Order Family Animalia Platyhelminthes Turbellaria Tricladida Geoplanidae Common name snail-eating flatworm (English), Flachwurm (German), flatworm (English) Synonym Similar species Summary Worldwide land snail diversity is second only to that of arthropods. Tropical oceanic islands support unique land snail faunas with high endemism; biodiversity of land snails in Pacific islands is estimated to be around 5 000 species, most of which are endemic to single islands or archipelagos. Many are already under threat from the rosy wolfsnail (Euglandina rosea), an introduced predatory snail. They now face a newer but no less formidable threat, the introduced flatworm Platydemus manokwari (Platyhelminthes). Both \"biocontrol\" species continue to be dispersed to new areas in attempts to control Achatina fulica. view this species on IUCN Red List Species Description This flatworm has a uniform exterior appearance. The adult length is 40 to 65mm long, 4 to 7mm wide. The head end is more pointed than tail end. The flattened cross section has a thickness less than 2mm. The colour of the dorsal surface is very dark brown, almost black, with a thin medial pale line. The ventral surface is pale gray. (de Beauchamp, 1963). Notes A rhynchodemid flatworm, Platydemus manokwari, was discovered in New Guinea and originally described in 1962 (Kaneda Kitagawa and Ichinohe 1990). Little has been known of its biology except that it is nocturnal, and there apparently is no report on the rearing of this flatworm (Kaneda Kitagawa and Ichinohe 1990). Global Invasive Species Database (GISD) 2021. Species profile Platydemus Pag.
    [Show full text]
  • Scaphanocephalus-Associated Dermatitis As the Basis for Black Spot Disease in Acanthuridae of St
    Vol. 137: 53–63, 2019 DISEASES OF AQUATIC ORGANISMS Published online November 28 https://doi.org/10.3354/dao03419 Dis Aquat Org OPENPEN ACCESSCCESS Scaphanocephalus-associated dermatitis as the basis for black spot disease in Acanthuridae of St. Kitts, West Indies Michelle M. Dennis1,*, Adrien Izquierdo1, Anne Conan1, Kelsey Johnson1, Solenne Giardi1,2, Paul Frye1, Mark A. Freeman1 1Center for Conservation Medicine and Ecosystem Health, Ross University School of Veterinary Medicine, St. Kitts, West Indies 2Department of Sciences and Technology, University of Bordeaux, Bordeaux, France ABSTRACT: Acanthurus spp. of St. Kitts and other Caribbean islands, including ocean surgeon- fish A. bahianus, doctorfish A. chirurgus, and blue tang A. coeruleus, frequently show multifocal cutaneous pigmentation. Initial reports from the Leeward Antilles raised suspicion of a parasitic etiology. The aim of this study was to quantify the prevalence of the disease in St. Kitts’ Acanthuri- dae and describe its pathology and etiology. Visual surveys demonstrated consistently high adjusted mean prevalence at 3 shallow reefs in St. Kitts in 2017 (38.9%, 95% CI: 33.8−43.9) and 2018 (51.5%; 95% CI: 46.2−56.9). There were no differences in prevalence across species or reefs, but juvenile fish were less commonly affected than adults. A total of 29 dermatopathy-affected acanthurids were sampled by spearfishing for comprehensive postmortem examination. Digenean metacercariae were dissected from <1 mm cysts within pigmented lesions. Using partial 28S rDNA sequence data they were classified as Family Heterophyidae, members of which are com- monly implicated in black spot disease of other fishes. Morphological features of the parasite were most typical of Scaphanocephalus spp.
    [Show full text]
  • Taxonomy, Conservation, and the Future of Native Aquatic Snails in the Hawaiian Islands
    diversity Perspective Taxonomy, Conservation, and the Future of Native Aquatic Snails in the Hawaiian Islands Carl C. Christensen 1,2, Kenneth A. Hayes 1,2,* and Norine W. Yeung 1,2 1 Bernice Pauahi Bishop Museum, Honolulu, HI 96817, USA; [email protected] (C.C.C.); [email protected] (N.W.Y.) 2 Pacific Biosciences Research Center, University of Hawaii, Honolulu, HI 96822, USA * Correspondence: [email protected] Abstract: Freshwater systems are among the most threatened habitats in the world and the biodi- versity inhabiting them is disappearing quickly. The Hawaiian Archipelago has a small but highly endemic and threatened group of freshwater snails, with eight species in three families (Neritidae, Lymnaeidae, and Cochliopidae). Anthropogenically mediated habitat modifications (i.e., changes in land and water use) and invasive species (e.g., Euglandina spp., non-native sciomyzids) are among the biggest threats to freshwater snails in Hawaii. Currently, only three species are protected either federally (U.S. Endangered Species Act; Erinna newcombi) or by Hawaii State legislation (Neritona granosa, and Neripteron vespertinum). Here, we review the taxonomic and conservation status of Hawaii’s freshwater snails and describe historical and contemporary impacts to their habitats. We conclude by recommending some basic actions that are needed immediately to conserve these species. Without a full understanding of these species’ identities, distributions, habitat requirements, and threats, many will not survive the next decade, and we will have irretrievably lost more of the unique Citation: Christensen, C.C.; Hayes, books from the evolutionary library of life on Earth. K.A.; Yeung, N.W. Taxonomy, Conservation, and the Future of Keywords: Pacific Islands; Gastropoda; endemic; Lymnaeidae; Neritidae; Cochliopidae Native Aquatic Snails in the Hawaiian Islands.
    [Show full text]
  • Degruyter Revac Revac-2021-0137 272..292 ++
    Reviews in Analytical Chemistry 2021; 40: 272–292 Review Article Vinita Ramtekey*, Susmita Cherukuri, Kaushalkumar Gunvantray Modha, Ashutosh Kumar*, Udaya Bhaskar Kethineni, Govind Pal, Arvind Nath Singh, and Sanjay Kumar Extraction, characterization, quantification, and application of volatile aromatic compounds from Asian rice cultivars https://doi.org/10.1515/revac-2021-0137 crop and deposits during seed maturation. So far, litera- received December 31, 2020; accepted May 30, 2021 ture has been focused on reporting about aromatic com- Abstract: Rice is the main staple food after wheat for pounds in rice but its extraction, characterization, and fi more than half of the world’s population in Asia. Apart quanti cation using analytical techniques are limited. from carbohydrate source, rice is gaining significant Hence, in the present review, extraction, characterization, - interest in terms of functional foods owing to the presence and application of aromatic compound have been eluci of aromatic compounds that impart health benefits by dated. These VACs can give a new way to food processing fl - lowering glycemic index and rich availability of dietary and beverage industry as bio avor and bioaroma com fibers. The demand for aromatic rice especially basmati pounds that enhance value addition of beverages, food, - rice is expanding in local and global markets as aroma is and fermented products such as gluten free rice breads. considered as the best quality and desirable trait among Furthermore, owing to their nutritional values these VACs fi consumers. There are more than 500 volatile aromatic com- can be used in bioforti cation that ultimately addresses the pounds (VACs) vouched for excellent aroma and flavor in food nutrition security.
    [Show full text]
  • A Synopsis of the Parasites from Cyprinid Fishes of the Genus Tribolodon in Japan (1908-2013)
    生物圏科学 Biosphere Sci. 52：87－115 (2013) A synopsis of the parasites from cyprinid fishes of the genus Tribolodon in Japan (1908-2013) Kazuya Nagasawa and Hirotaka Katahira Graduate School of Biosphere Science, Hiroshima University Published by The Graduate School of Biosphere Science Hiroshima University Higashi-Hiroshima 739-8528, Japan December 2013 生物圏科学 Biosphere Sci. 52：87－115 (2013) REVIEW A synopsis of the parasites from cyprinid fishes of the genus Tribolodon in Japan (1908-2013) Kazuya Nagasawa1)* and Hirotaka Katahira1,2) 1) Graduate School of Biosphere Science, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8528, Japan 2) Present address: Graduate School of Environmental Science, Hokkaido University, N10 W5, Sapporo, Hokkaido 060-0810, Japan Abstract Four species of the cyprinid genus Tribolodon occur in Japan: big-scaled redfin T. hakonensis, Sakhalin redfin T. sachalinensis, Pacific redfin T. brandtii, and long-jawed redfin T. nakamuraii. Of these species, T. hakonensis is widely distributed in Japan and is important in commercial and recreational fisheries. Two species, T. hakonensis and T. brandtii, exhibit anadromy. In this paper, information on the protistan and metazoan parasites of the four species of Tribolodon in Japan is compiled based on the literature published for 106 years between 1908 and 2013, and the parasites, including 44 named species and those not identified to species level, are listed by higher taxon as follows: Ciliophora (2 named species), Myxozoa (1), Trematoda (18), Monogenea (0), Cestoda (3), Nematoda (9), Acanthocephala (2), Hirudinida (1), Mollusca (1), Branchiura (0), Copepoda (6 ), and Isopoda (1). For each taxon of parasite, the following information is given: its currently recognized scientific name, previous identification used for the parasite occurring in or on Tribolodon spp.; habitat (freshwater, brackish, or marine); site(s) of infection within or on the host; known geographical distribution in Japan; and the published source of each locality record.
    [Show full text]