Parasitology Research最新文献_第10页

Identification and molecular characterization of a novel Babesia orientalis rhoptry neck protein 4 (BoRON4). 新型东方巴贝西亚螺旋体颈部蛋白 4（BoRON4）的鉴定和分子特征。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-08-29 DOI: 10.1007/s00436-024-08328-5

Fangjie Li, Jiaying Guo, Sen Wang, Zhen Han, Zheng Nie, Long Yu, Xiang Shu, Yingjun Xia, Lan He, Junlong Zhao

{"title":"Identification and molecular characterization of a novel Babesia orientalis rhoptry neck protein 4 (BoRON4).","authors":"Fangjie Li, Jiaying Guo, Sen Wang, Zhen Han, Zheng Nie, Long Yu, Xiang Shu, Yingjun Xia, Lan He, Junlong Zhao","doi":"10.1007/s00436-024-08328-5","DOIUrl":"10.1007/s00436-024-08328-5","url":null,"abstract":"Babesia orientalis, a protozoan parasite transmitted by the tick Rhipicephalus haemaphysaloides, holds significant economic importance along the Yangtze River. Key factors in the host invasion process include rhoptry neck proteins (RON2, RON4, and RON5) and apical membrane antigen 1 (AMA1). However, the intricacies of the interaction between AMA1 and RONs remain incompletely elucidated in B. orientalis. To better understand these crucial invasion components, the RON4 gene of B. orientalis (BoRON4) was cloned and sequenced. RON4 is 3468 base pairs long, encodes 1155 amino acids, and has a predicted molecular weight of 130 kDa. Bioinformatics analysis revealed a unique region (amino acid residues 109-452) in BoRON4, which demonstrates higher sensitivity to epitope activity. The BoRON4 gene was strategically truncated, amplified, and cloned into the pGEX-6p-1 vector for fusion expression. We successfully used the mouse polyclonal antibody to identify native BoRON4 in B. orientalis lysates. Furthermore, the corresponding BoRON4 protein band was detected in the water buffalo serum infected with B. orientalis, while no such band was observed in the control. Additionally, I-TASSER and Discovery Studio software were used to predict the tertiary structures of BoRON4 and its ligands, CH-PKA and CH-complex. These ligands can serve as lead compounds for the development of anti-babesiosis drugs. In conclusion, BoRON4 emerges as a promising candidate antigen for distinguishing water buffalo infected with B. orientalis from their normal counterparts. This study positions BoRON4 as a potential diagnostic antigen for babesiosis in water buffalo, contributing valuable insights to the field of parasitology.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 8","pages":"310"},"PeriodicalIF":1.8,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142110797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Correction to: An overview of artemisinin-resistant malaria and associated Pfk13 gene mutations in Central Africa. 更正：中非青蒿素耐药性疟疾及相关 Pfk13 基因突变概述。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-08-23 DOI: 10.1007/s00436-024-08315-w

Charlotte Sabine Milong Melong, Elias Peloewetse, Gianluca Russo, Ousman Tamgue, Francois Tchoumbougnang, Giacomo Maria Paganotti

引用次数: 0

Mosquito prevalence, resting habitat preference, and Plasmodium infection status of anophelines in coastal Karnataka during the declining phase of malaria-an exploratory study. 疟疾衰退期卡纳塔克邦沿海无尾目动物的蚊子流行率、休息栖息地偏好和疟原虫感染状况--一项探索性研究。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-08-22 DOI: 10.1007/s00436-024-08322-x

Gowthami Arumugam, Kavitha Saravu, Prashanth Kotthapalli, Vishnu Teja Nallapati, Prashanth Bhat, Muktha Achari, Naveenchandra Kulal, Shriram Ananganallur Nagarajan, Hoti S L, Ashwani Kumar

{"title":"Mosquito prevalence, resting habitat preference, and Plasmodium infection status of anophelines in coastal Karnataka during the declining phase of malaria-an exploratory study.","authors":"Gowthami Arumugam, Kavitha Saravu, Prashanth Kotthapalli, Vishnu Teja Nallapati, Prashanth Bhat, Muktha Achari, Naveenchandra Kulal, Shriram Ananganallur Nagarajan, Hoti S L, Ashwani Kumar","doi":"10.1007/s00436-024-08322-x","DOIUrl":"10.1007/s00436-024-08322-x","url":null,"abstract":"Malaria has a historical presence in the Dakshina Kannada (D.K.) and Udupi districts of Karnataka, India. To understand the potential involvement of anopheline fauna in malaria transmission, we conducted an exploratory entomological survey. The study is crucial given the decreasing malaria incidence in these districts in recent years. From September 2022 to August 2023, we collected indoor resting mosquitoes using a manual aspirator at 27 randomly chosen sites within three distinct resting habitats (human dwellings, cattle sheds, and construction sites) in the urban areas of Udupi and Dakshina Kannada districts. Mosquitoes were morphologically identified, and anopheline specimens were tested for the presence of malarial parasite by polymerase chain reaction (PCR) analysis. We collected a total of 1810 mosquitoes, comprising 21 species distributed across five genera. Culex emerged as the predominant genus, constituting 84.4% of the collected specimens, while Anopheles accounted for 5.4%. Among the observed species, Culex quinquefasciatus was predominant, comprising 77.9% of the mosquito specimens collected in this study. Two malaria vectors, An. stephensi and An. subpictus complex, constituted 16.3% and 1.0% of the total anophelines collected, respectively. None of the 96 female anophelines was tested positive for Plasmodium infection. Our findings suggest that Anopheles mosquitoes prefer resting in cattle sheds over human dwellings. While our study identified two malaria vectors, they were present at low densities. To gain a more comprehensive understanding of the dynamics of these vector mosquitoes, it is essential to conduct long-term surveillance to monitor their prevalence and role in malaria transmission.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 8","pages":"308"},"PeriodicalIF":1.8,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11341726/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142018276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Epidemiology and distribution of gastrointestinal parasites in fattening pig farms in northern Italy. 意大利北部育肥猪场胃肠道寄生虫的流行病学和分布情况。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-08-22 DOI: 10.1007/s00436-024-08320-z

Carolina Allievi, Marco Valleri, Sergio Aurelio Zanzani, Alessandro Zanon, Michele Mortarino, Maria Teresa Manfredi

{"title":"Epidemiology and distribution of gastrointestinal parasites in fattening pig farms in northern Italy.","authors":"Carolina Allievi, Marco Valleri, Sergio Aurelio Zanzani, Alessandro Zanon, Michele Mortarino, Maria Teresa Manfredi","doi":"10.1007/s00436-024-08320-z","DOIUrl":"10.1007/s00436-024-08320-z","url":null,"abstract":"In Italy, pig breeding is characterised by intensive farms in which parasitic diseases often present a subclinical pattern, while being responsible for decreased animal welfare and great economic losses. The present study aimed to assess the prevalence of major parasites in pigs, and, for this purpose, 880 faecal samples of fattening pigs raised in 22 intensive farms located in northern Italy were collected in two different sampling sessions, at the beginning and end of the fattening cycle. For the detection of helminth eggs and coccidian oocysts, a quantitative flotation technique was used, whereas a conventional PCR was performed to confirm the identification of cestode eggs found by copromicroscopic analysis. Moreover, data regarding herd management were collected to assess risk factors for parasite occurrence. A total of 95 samples were positive for at least one parasitic taxon (10.8%); the most detected parasite was Ascaris suum (7.6%), followed by Trichuris suis (1.7%) and Cystoisospora suis (0.9%). Further, eggs with morphometric features compatible with those of Hymenolepis diminuta were detected in 16 samples (1.8%), and the analysis of sequences confirmed the identification of cestode eggs. Statistical analysis showed that large farms and those applying the all-in/all-out system were associated with a lower risk of nematode infection. This study provided data on prevalence and burden of gastrointestinal parasites in two different times of the fattening cycle. It was evidenced that endoparasites are persistent, albeit with low prevalences, and would need specific measures to reduce their effects on both animal health and productivity.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 8","pages":"307"},"PeriodicalIF":1.8,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11341578/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142018275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anthropogenic electromagnetic radiation alters the transcription levels of the genes encoding the SIFamide and myoinhibitory peptide and their receptors in Ixodes ricinus synganglion. 人为电磁辐射改变了蓖麻弓形虫体内编码SIFamide和肌抑制肽及其受体基因的转录水平。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-08-21 DOI: 10.1007/s00436-024-08326-7

Lívia Šofranková, Miroslav Baňas, Natália Pipová, Igor Majláth, Juraj Kurimský, Roman Cimbala, Ján Zbojovský, Ladislav Šimo, Viktória Majláthová

{"title":"Anthropogenic electromagnetic radiation alters the transcription levels of the genes encoding the SIFamide and myoinhibitory peptide and their receptors in Ixodes ricinus synganglion.","authors":"Lívia Šofranková, Miroslav Baňas, Natália Pipová, Igor Majláth, Juraj Kurimský, Roman Cimbala, Ján Zbojovský, Ladislav Šimo, Viktória Majláthová","doi":"10.1007/s00436-024-08326-7","DOIUrl":"10.1007/s00436-024-08326-7","url":null,"abstract":"The research of the influences of man-made electromagnetic fields on tick physiology has been very sparse and long neglected since the pioneer studies published in 1996 and 2000. Once multiple behavioral tests confirmed an attraction and possible perception of electromagnetic fields in ticks, a new interest in this topic erupted in recent years. In this study, qRT-PCR is utilized to determine the changes in the mRNA transcript levels of neuropeptides SIFamide and myoinhibitory peptide (mip and sifa) and their representative receptors (mip-r1 and sifa-r1) in the synganglia of the tick Ixodes ricinus irradiated by 900 MHz radiofrequency electromagnetic field. It was determined that 40 V/m intensity has a significant suppressory effect on the transcript levels of all genes after at least 60 minutes of constant exposure in both sexes. Commonly occurring intensity of radiation in urban areas (2 V/m) produced an elevation in mRNA levels after various timespans in every gene. A significant decrease of transcript abundances was detected in females after one hour of exposure to 2 V/m. Results of this study widen the knowledge of EMF-induced alterations in the neurophysiology of I. ricinus, the most commonly distributed hard tick in Europe.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 8","pages":"306"},"PeriodicalIF":1.8,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11339154/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142018274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of nebivolol efficacy in experimental models of toxoplasmosis: insights into parasite burden reduction and neuronal protection. 评估奈必洛尔在弓形虫病实验模型中的疗效：对减轻寄生虫负担和保护神经元的见解。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-08-20 DOI: 10.1007/s00436-024-08318-7

Amanda Bruno da Silva Bellini Ramos, Tayline Torres, Luis Felipe Cunha Dos Reis, Gabriel Carvalho Lambert, Fábio Antônio Colombo, Marcos José Marques, Juliana Quero Reimão

{"title":"Assessment of nebivolol efficacy in experimental models of toxoplasmosis: insights into parasite burden reduction and neuronal protection.","authors":"Amanda Bruno da Silva Bellini Ramos, Tayline Torres, Luis Felipe Cunha Dos Reis, Gabriel Carvalho Lambert, Fábio Antônio Colombo, Marcos José Marques, Juliana Quero Reimão","doi":"10.1007/s00436-024-08318-7","DOIUrl":"10.1007/s00436-024-08318-7","url":null,"abstract":"This study investigates the efficacy of nebivolol (NBV) in experimental models of toxoplasmosis, focusing on parasite burden reduction and neuronal protection. In the acute model of experimental toxoplasmosis, Swiss mice infected with RH strain tachyzoites received oral NBV chlorhydrate doses of 2 mg/kg/day and 4 mg/kg/day for 8 days. Treatment with NBV significantly reduced parasite burden compared to vehicle and standard drug (PYR) groups. In the chronic model of experimental toxoplasmosis, C57/BL6 mice infected with the ME49 strain received NBV chlorhydrate 41 days post-infection and were evaluated after 10 days of treatment. NBV chlorhydrate effectively reduced cyst number and area, as well as bradyzoite burden compared to controls. Histological analysis demonstrated that NBV chlorhydrate preserved neuronal count, with the 4 mg/kg/day dose yielding counts similar to non-infected mice. Statistical analysis confirmed significant differences compared to control groups. Furthermore, immunohistochemical analysis revealed a significant reduction in iNOS labeling in the brains of mice treated with NBV chlorhydrate, indicating a decrease in nitric oxide production compared to control groups. These findings suggest NBV's potential as a promising candidate for toxoplasmosis treatment, highlighting its ability to reduce parasite burden and protect neuronal integrity. Further research is warranted to elucidate NBV's mechanisms of action and its clinical application in managing toxoplasmosis.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 8","pages":"303"},"PeriodicalIF":1.8,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142004927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Comparative effect of ivermectin and amitraz on cellular architecture of ovaries, synganglion and Gené's organ of Rhipicephalus microplus (Acari: Ixodidae). 伊维菌素和双甲脒对 Rhipicephalus microplus（蛔虫科：Ixodidae）卵巢、合子和 Gené's 器官细胞结构影响的比较。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-08-20 DOI: 10.1007/s00436-024-08324-9

Nisha Bisht, Ashutosh Fular, Anil Kumar Sharma, Gaurav Nagar, Sankar Muthu, Srikanta Ghosh

{"title":"Comparative effect of ivermectin and amitraz on cellular architecture of ovaries, synganglion and Gené's organ of Rhipicephalus microplus (Acari: Ixodidae).","authors":"Nisha Bisht, Ashutosh Fular, Anil Kumar Sharma, Gaurav Nagar, Sankar Muthu, Srikanta Ghosh","doi":"10.1007/s00436-024-08324-9","DOIUrl":"10.1007/s00436-024-08324-9","url":null,"abstract":"The present study investigated the effect of ivermectin and amitraz on the cellular architecture of vital organs of Rhipicephalus microplus. Adult female ticks were treated with lethal concentrations (LC95) of ivermectin and amitraz, and the ovaries, synganglion, and Gené's organ were processed 48 h post treatment. In both the treatment groups, the ultra-thin sections of ovary exhibited deformed oocytes, irregular plasmic membrane and chorion layer, extensive vacuolation in the cytoplasm mainly at periphery of the cell and oocyte-pedicel junction. Marked vacuolations in the cortex and neuropile region with significant structural disorganization of the neural fibers were common alterations observed in the synganglion of ticks exposed to ivermectin and amitraz. The tissue sections of Gené's organ revealed deformed tubular glands with severe loss of cellular limit of secretory epithelium and cytoplasmic vacuolations in the ivermectin treated ticks whereas, the alterations were comparatively less severe in amitraz exposed ticks. The cellular deformities in these vital organs probably impaired reproductive function, nerve signal transmission and metabolic activities and thus affected fecundity and survivability of the treated ticks. The findings suggested that the action of ivermectin and amitraz are not restricted to the nervous system of ticks, but also on other vital organs, ovary and Gené's organ affecting the oviposition. The study provided insights into the development of targeted interventions for tick control strategies.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 8","pages":"305"},"PeriodicalIF":1.8,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142004928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Detection of Usutu virus in a house martin bug Oeciacus hirundinis (Hemiptera: Cimicidae): implications for virus overwintering in a temperate zone. 在一种家貂蝽 Oeciacus hirundinis（半翅目：Cimicidae）中检测到乌苏图病毒：对病毒在温带地区越冬的影响。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-08-20 DOI: 10.1007/s00436-024-08325-8

Silvie Šikutová, Jan Mendel, Kristína Mravcová, Romana Kejíková, Zdeněk Hubálek, Helge Kampen, Ivo Rudolf

{"title":"Detection of Usutu virus in a house martin bug Oeciacus hirundinis (Hemiptera: Cimicidae): implications for virus overwintering in a temperate zone.","authors":"Silvie Šikutová, Jan Mendel, Kristína Mravcová, Romana Kejíková, Zdeněk Hubálek, Helge Kampen, Ivo Rudolf","doi":"10.1007/s00436-024-08325-8","DOIUrl":"10.1007/s00436-024-08325-8","url":null,"abstract":"The family Cimicidae comprises ectoparasites feeding exclusively on the blood of endothermic animals. Cimicid swallow bugs specifically target swallow birds (Hirundinidae) and their nestlings in infested nests. Bugs of the genus Oeciacus are commonly found in mud nests of swallows and martins, while they rarely visit the homes of humans. Although-unlike other cimicid species-the house martin bug Oeciacus hirundinis has never been reported as a vector of zoonotic pathogens, its possible role in arbovirus circulation in continental Europe is unclear. Samples of O. hirundinis were therefore collected from abandoned house martin (Delichon urbicum) nests in southern Moravia (Czech Republic) during the 2021/2022 winter season and checked for alpha-, flavi- and bunyaviruses by RT-PCR. Of a total of 96 pools consisting of three adult bugs each, one pool tested positive for Usutu virus (USUV)-RNA. Phylogenetic analysis showed that the virus strain was closely related to Italian and some Central European strains and corresponded to USUV lineage 5. The detection of USUV in O. hirundinis during wintertime in the absence of swallows raises the question for a possible role of this avian ectoparasite in virus overwintering in Europe.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 8","pages":"304"},"PeriodicalIF":1.8,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11335831/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142004929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Complete mitochondrial genome of Penicillidia dufourii (Diptera: Hippoboscoidea: Nycteribiidae) and phylogenetic relationship. Penicillidia dufourii（双翅目：Hippoboscoidea：Nycteribiidae）的完整线粒体基因组及系统发育关系。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-08-19 DOI: 10.1007/s00436-024-08321-y

Xiaoyan Zheng, Xiaoxia Lin, Xianzheng Zhang, Xiaobin Huang, Xinke Yue, Ju Pu

{"title":"Complete mitochondrial genome of Penicillidia dufourii (Diptera: Hippoboscoidea: Nycteribiidae) and phylogenetic relationship.","authors":"Xiaoyan Zheng, Xiaoxia Lin, Xianzheng Zhang, Xiaobin Huang, Xinke Yue, Ju Pu","doi":"10.1007/s00436-024-08321-y","DOIUrl":"10.1007/s00436-024-08321-y","url":null,"abstract":"Penicillidia dufourii (Westwood 1834) is a specialized parasite categorized under family Nycteribiidae that prefers to parasitize the body surface of various bats under the genus Myotis. Many species of the family Nycteribiidae are carriers of various pathogens; however, research on P. dufourii remains scarce, and studies on its molecular identification and population genetic structure are still lacking. In this study, the complete mitochondrial genome of P. dufourii was elucidated for the first time using Illumina sequencing. The mitochondrial genome is 15,354 bp in size and encodes approximately 37 genes, including 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and 1 control region. Analysis of 13 protein-coding genes revealed that UUA, UCA, CGA, and GGA were the most common codons, while nad4L had the fastest evolutionary rate and cox1 the slowest. Phylogenetic analysis based on the mitochondrial genome indicated that P. dufourii is clustered with other species of the family Nycteribiidae and is most closely related to Nycteribia parvula and Phthiridium szechuanum.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 8","pages":"302"},"PeriodicalIF":1.8,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142000531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Interactive and lag effects of environmental factors on the density of schistosome-transmitting Oncomelania hupensis: A twelve-year monthly repeated survey. 环境因素对传播血吸虫的胡蜂蝇密度的交互和滞后效应：一项为期十二年的月度重复调查。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-08-16 DOI: 10.1007/s00436-024-08323-w

Jiamin Wang, Junhui Huang, Yanfeng Gong, Ning Xu, Yu Zhou, Liyun Zhu, Liang Shi, Yue Chen, Qingwu Jiang, Yibiao Zhou

{"title":"Interactive and lag effects of environmental factors on the density of schistosome-transmitting Oncomelania hupensis: A twelve-year monthly repeated survey.","authors":"Jiamin Wang, Junhui Huang, Yanfeng Gong, Ning Xu, Yu Zhou, Liyun Zhu, Liang Shi, Yue Chen, Qingwu Jiang, Yibiao Zhou","doi":"10.1007/s00436-024-08323-w","DOIUrl":"10.1007/s00436-024-08323-w","url":null,"abstract":"Schistosomiasis is a significant public health threat, and Oncomelania hupensis is the only intermediate host for schistosoma japonicum. We conducted 12-year monthly repeated surveys to explore the interactive and lag effects of environmental factors on snail density and to monitor their long-term and seasonal trends in a bottomland around the Dongting Lake region in China. Relevant environmental data were obtained from multiple sources. A Bayesian kernel machine regression model and a Bayesian temporal model combined with a distributed lag model were constructed to analyze interactive and lag effects of environmental factors on snail density. The results indicated the average annual snail density in the study site exhibited an increasing and then decreasing trend, peaking in 2013. Snail densities were the highest in October and the lowest in January in a year. Normalized Difference Vegetation Index (NDVI) and water level were the most effective predictors of snail density, with potential interactions among temperature, precipitation, and NDVI. The mean minimum temperature in January, water level, precipitation and NDVI were positively correlated with snail density at lags ranging from 1 to 4 months. These findings could serve as references for relevant authorities to monitor the changing trend of snail density and implement control measures, thereby reducing the occurrence of schistosomiasis.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 8","pages":"301"},"PeriodicalIF":1.8,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141988530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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