Journal of Parasitology最新文献_第6页

SCOLICIDAL POTENCY OF BILE AGAINST ECHINOCOCCUS GRANULOSUS. 胆汁对细粒棘球绦虫的杀毒作用。

IF 1 4区医学

Journal of Parasitology Pub Date : 2025-01-01 DOI: 10.1645/24-111

İsa Caner Aydın, Noyan İlhan, Ahmet Şeker, Cem Batuhan Ofluoğlu, Fırat Mülküt, Nuri Emrah Göret, Kenan Çetin, Erdal Polat, Gökhan Aygün, Hasan Fehmi Kücük

{"title":"SCOLICIDAL POTENCY OF BILE AGAINST ECHINOCOCCUS GRANULOSUS.","authors":"İsa Caner Aydın, Noyan İlhan, Ahmet Şeker, Cem Batuhan Ofluoğlu, Fırat Mülküt, Nuri Emrah Göret, Kenan Çetin, Erdal Polat, Gökhan Aygün, Hasan Fehmi Kücük","doi":"10.1645/24-111","DOIUrl":"10.1645/24-111","url":null,"abstract":"Cysto-biliary fistulas are commonly diagnosed, either before or after surgical intervention, in patients with enlarged or advanced-stage hydatid cysts (HCs). Analysis of cystic contents in these patients shows that diminished scolex vitality is more common in patients with cysto-biliary fistulas. This study aims to demonstrate the scolicidal effects of bile on Echinococcus granulosus (EG) scolices at various bile concentrations and over specific periods. The time- and concentration-based scolicidal potency was analyzed in EG scolex samples obtained from HC patients. The integrity of the cyst wall and the scolicidal effect of the contents were evaluated using a vital staining technique with 0.1% eosin. Bile samples were collected from patients with cholelithiasis who were scheduled for surgery. Scolicidal efficacy of 100% was observed in all samples at the 1/4 bile concentration after 10 min and at the 1/8 concentration after 60 min. At a 1/16 concentration, scolicidal efficacy was 66% at 1 min, 89% at 10 min, 93% at 30 min, and 98% at 60 min. At a 1/32 bile concentration, scolicidal efficacy was 59% at 1 min, 68% at 10 min, 89% at 30 min, and 95% t 60 min. At a 1/64 concentration, the scolicidal efficacy was 53% at 1 min, 58% at 10 min, 77% at 30 min, and 93% at 60 min. After 1 hr, reasonable scolicidal efficacy was determined up to a 1/64 concentration; however, significant decreases in scolicidal efficacy were observed at 1/128 and 1/256 bile concentrations. Theoretically, bile, which is an endogenous secretion, can be used as a suitable and potent scolicidal agent. This study lays the groundwork for future in vivo clinical trials utilizing synthetic bile acids for scolicidal purposes or for studies evaluating the scolicidal effects of bile in patients who develop cysto-biliary fistulas.","PeriodicalId":16659,"journal":{"name":"Journal of Parasitology","volume":"111 1","pages":"64-69"},"PeriodicalIF":1.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143399346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SYNONYMIZATION OF PLACOBDELLA PICTA (VERRILL, 1872) (HIRUDINEA: GLOSSIPHONIIDAE) WITH DESCRIPTIONS OF TWO NEW SPECIES REVEALED BY MOLECULAR SPECIES DELIMITATION. picobdella picta (verrill, 1872)（水蛭目：舌蝗科）的同义化与分子种划分揭示的两个新种的描述。

IF 1 4区医学

Journal of Parasitology Pub Date : 2025-01-01 DOI: 10.1645/24-89

Anna J Phillips, Dennis J Richardson, Charlotte I Hammond, Brett C Gonzalez, Eric A Lazo-Wasem, William E Moser

{"title":"SYNONYMIZATION OF PLACOBDELLA PICTA (VERRILL, 1872) (HIRUDINEA: GLOSSIPHONIIDAE) WITH DESCRIPTIONS OF TWO NEW SPECIES REVEALED BY MOLECULAR SPECIES DELIMITATION.","authors":"Anna J Phillips, Dennis J Richardson, Charlotte I Hammond, Brett C Gonzalez, Eric A Lazo-Wasem, William E Moser","doi":"10.1645/24-89","DOIUrl":"10.1645/24-89","url":null,"abstract":"Species of Placobdella have been the frequent subject of revisionary and alpha-taxonomy in the past 2 decades. Recent molecular analyses introduced uncertainty about the taxonomic status of several broadly distributed and morphologically variable Placobdella species, including Placobdella picta (Verrill 1872), compounded by incomplete original descriptions reliant upon characters that are no longer unique in comparison to modern congeners. We assessed specimens of P. picta to identify any distinct phylogenetic entities that align with our morphological observations of the type series and novel topotype specimens. Using mitochondrial COI and ND1 and nuclear 18S rDNA with Maximum Likelihood and Bayesian Inference, we evaluated species boundaries using species delimitation analyses (ABGD, mPTP, bPTP, and GMYC) and molecular phylogenetics. Our analyses revealed 2 species entities equivalent to 2 non-reciprocal monophyletic clades. Morphological examinations revealed the lectotype was determined to be Placobdella ornata (Verrill 1872), and paralectotypes are other leech species or were poorly preserved and unidentifiable. Due to the problems with the type series, P. picta is now considered a junior synonym of P. ornata. Based on our results, we describe 2 new species: Placobdella unimaculata n. sp. from Connecticut and Placobdella desseri n. sp. from Algonquin Provincial Park, Ontario, Canada.","PeriodicalId":16659,"journal":{"name":"Journal of Parasitology","volume":"111 1","pages":"48-63"},"PeriodicalIF":1.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143399348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

HELMINTH EGGS FROM PACHYCROCUTA BREVIROSTRIS (CARNIVORA, HYAENIDAE) COPROLITES FROM TAURIDA CAVE (EARLY PLEISTOCENE, CRIMEA). 克里米亚早更新世taurida岩洞粪化石中pachycrocuta brevirostris（食肉目，鬣狗科）的蠕虫卵。

IF 1 4区医学

Journal of Parasitology Pub Date : 2025-01-01 DOI: 10.1645/24-50

Tatiana N Sivkova, Daniyar R Khantemirov, Dmitriy O Gimranov, Alexander V Lavrov

引用次数: 0

DESCRIPTION OF A NEW SPECIES OF GYRINICOLA YAMAGUTI, 1938, FROM THE MONTEZUMA FROG, RANA MONTEZUMAE, IN THE TRANSITION ZONE BETWEEN THE NEARCTIC AND NEOTROPICS. 新北极与新热带过渡地带蒙特祖玛蛙属gyrinicola yamaguti新种描述，1938年。

IF 1 4区医学

Journal of Parasitology Pub Date : 2025-01-01 DOI: 10.1645/24-83

Matthew A Walker, Rogelio Aguilar-Aguilar, Virginia León-Règagnon, F Agustín Jiménez

{"title":"DESCRIPTION OF A NEW SPECIES OF GYRINICOLA YAMAGUTI, 1938, FROM THE MONTEZUMA FROG, RANA MONTEZUMAE, IN THE TRANSITION ZONE BETWEEN THE NEARCTIC AND NEOTROPICS.","authors":"Matthew A Walker, Rogelio Aguilar-Aguilar, Virginia León-Règagnon, F Agustín Jiménez","doi":"10.1645/24-83","DOIUrl":"10.1645/24-83","url":null,"abstract":"The present work includes the description of Gyrinicola pilyolcatzin n. sp. (Nematoda: Oxyurida) collected from the large intestine of tadpoles of the Montezuma frog, Rana montezumae. Nuclear DNA and mitochondrial DNA generated via a combination of Sanger and Next Generation shotgun sequencing were used to reconstruct the species in a phylogenetic context, by including the other 4 recognized species in the genus present in North America, namely, Gyrinicola batrachiensis, Gyrinicola armatus, Gyrinicola gulabrevioris, and Gyrinicola moohsia. The distinctiveness of the species was supported by an analysis of branching patterns using Bayesian Poisson tree processes. We used morphometric evidence to enumerate the diagnostic characters that define members of this unique clade within the genus. The species shares a common ancestor with G. gulabrevioris and G. moohsia; yet it is meristically similar to G. armatus. This is the first species of the genus described in Mexico and the fifth species described in the Nearctic, as it is present in the Transvolcanic Axis of Mexico, which acts as a transition zone between the Nearctic and the Neotropics. A dichotomous key to the species in the Nearctic is offered.","PeriodicalId":16659,"journal":{"name":"Journal of Parasitology","volume":"111 1","pages":"26-40"},"PeriodicalIF":1.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143023897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ACCEPTANCE OF THE 2024 HENRY BALDWIN WARD MEDAL: A MACGYVER APPROACH TO PARASITOLOGY. 接受2024年亨利·鲍德温·沃德奖章：对寄生虫学的一种变通方法。

IF 1.1 4区医学

Journal of Parasitology Pub Date : 2024-12-27 DOI: 10.1645/24-96

Janet Koprivnikar

引用次数: 0

PRESENTATION OF THE 2024 ASHTON CUCKLER NEW INVESTIGATOR AWARD TO DR. KAYLEE HERZOG. 颁发2024年阿什顿·库克勒新研究员奖给凯莉·赫尔佐格博士。

IF 1.1 4区医学

Journal of Parasitology Pub Date : 2024-12-27 DOI: 10.1645/24-132

Kristin K Herrmann

引用次数: 0

INTRODUCTION OF DR. JANET KOPRIVNIKAR, RECIPIENT OF THE HENRY BALDWIN WARD MEDAL FOR 2024. 珍妮特·科普里夫尼科博士介绍，她是2024年亨利·鲍德温·沃德奖章的获得者。