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https://www.readbyqxmd.com/read/28443982/enzyme-linked-immunosorbent-assay-for-diagnosis-of-amphimerus-spp-liver-fluke-infection-in-humans
#1
William Cevallos, Manuel Calvopiña, Victoria Nipáz, Belén Vicente-Santiago, Julio López-Albán, Pedro Fernández-Soto, Ángel Guevara, Antonio Muro
BACKGROUND: Amphimerus spp. is a liver fluke that infects humans and domestic animals. It is highly prevalent in some Ecuadorian communities. Currently, diagnosis is based on the microscopic observation of eggs in faeces, but this has variable sensitivity. More sensitive methods are needed for diagnostic testing. OBJECTIVE: The main objective of this work was to develop an enzyme-linked immunosorbent assay (ELISA) using crude antigens from Amphimerus spp. adult worms to detect anti-Amphimerus IgG in human sera...
May 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28395568/a-case-of-ectopic-paragonimiasis-in-a-17th-century-korean-mummy
#2
Dong Hoon Shin, Yi Suk Kim, Dong Soo Yoo, Myeung Ju Kim, Chang Seok Oh, Jong Ha Hong, Eun Ju Lee, Jong Yil Chai, Min Seo
Archaeoparasitological studies on fossilized feces obtained from Joseon Dynasty (1392-1910 CE) mummies have provided invaluable data on the patterns of parasitic infection in pre-modern Korean societies. In our recent radiological investigation of a 17th century Joseon mummy discovered in Cheongdo (South Korea), we located a liver mass just below the diaphragm. Anatomical dissection confirmed the presence of a mass of unknown etiology. A subsequent parasitological examination of a sample of the mass revealed a large number of ancient Paragonimus sp...
April 10, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28348084/delineating-distinct-heme-scavenging-and-binding-functions-of-domains-in-mf6p-helminth-defense-molecule-hdm-proteins-from-parasitic-flatworms
#3
Victoria Martínez-Sernández, Mercedes Mezo, Marta González-Warleta, María J Perteguer, Teresa Gárate, Fernanda Romarís, Florencio M Ubeira
MF6p/FhHDM-1 is a small protein secreted by the parasitic flatworm (trematode) Fasciola hepatica that belongs to a broad family of heme-binding proteins (MF6p/helminth defense molecules (HDMs)). MF6p/HDMs are of interest for understanding heme homeostasis in trematodes and as potential targets for the development of new flukicides. Moreover, interest in these molecules has also increased because of their immunomodulatory properties. Here we have extended our previous findings on the mechanism of MF6p/HDM-heme interactions and mapped the protein regions required for heme binding and for other biological functions...
May 26, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28173670/-clinical-pathologic-and-radiologic-analysis-of-paragonimiasis-in-children
#4
Q Liu, H Zhang, Y M Zhao, L L Zhou, B H Gao, Y P Chen
Objective: To analyze the clinical, pathological and radiological characteristics of paragonimiasis in children for accurate diagnosis and therapy. Methods: A total of 31 patients with paragonimiasis treated from 2002 to 2016 were selected, including 17 cases from migrant areas and 14 cases from Wenzhou area. Results: In migrant children group, the serum IgE was significantly higher than that in Wenzhou area group [(2 379±944) IU/mL∶(1 552±1 121) IU/mL, t=-2.23, P<0.05], and the duration of therapy was remarkable longer [(13...
February 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28158416/eosinophilic-meningitis-due-to-infection-with-paragonimus-kellicotti
#5
Nathan C Bahr, Robin L Trotman, Hala Samman, Richard S Jung, Lee R Rosterman, Gary J Weil, Daniel R Hinthorn
Paragonimus kellicotti is an emerging pathogen in the United States with 19 previously reported cases, most in Missouri. Pulmonary symptoms with eosinophilia are most common, though 1 case did involve the central nervous system with few symptoms. We describe the first 2 cases of eosinophilic meningitis due to Paragonimus kellicotti.
May 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28127717/inactivation-of-paragonimus-westermani-metacercariae-in-soy-sauce-marinated-and-frozen-freshwater-crabs
#6
Tae Im Kim, Se-Ra Oh, Fuhong Dai, Hyun-Jong Yang, Sang-Do Ha, Sung-Jong Hong
Soy sauce-marinated freshwater crabs (Eriocheir japonicus) are a source of human paragonimiasis. The viability of Paragonimus westermani metacercariae (PwMc) in marinated crabs was investigated in an experimental setting. The PwMc collected from freshwater crayfish were inoculated into freshwater crabs, which were then frozen or marinated in soy sauce. All PwMc in the freshwater crabs were inactivated after freezing for 48 h at -20 °C and after freezing for 12 h at -40 °C. After marinating for 32 days, the survival rate of PwMc in 5% NaCl soy sauce was 50%, in 7...
January 26, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28027969/morphological-and-molecular-characterization-of-the-metacercaria-of-paragonimus-caliensis-as-a-separate-species-from-p-mexicanus-in-costa-rica
#7
Roderico Hernández-Chea, Ana Eugenia Jiménez-Rocha, Ruth Castro, David Blair, Gaby Dolz
The trematode Paragonimus mexicanus is the etiological agent of paragonimiasis, a food-borne zoonotic disease in Latin America. This species, as well as Paragonimus caliensis, have been reported from Costa Rica, but it is not known if the two are synonymous. Two types of Paragonimus metacercariae from freshwater pseudothelphusid crabs from several localities in Costa Rica were recognized by light microscopy. Morphologically, these corresponded to descriptions of P. mexicanus and P. caliensis. Metacercariae of the former species lacked a membrane or cyst and their bodies were yellow in color...
April 2017: Parasitology International
https://www.readbyqxmd.com/read/27928089/cerebral-paragonimiasis-presenting-with-sudden-death
#8
Deirdre E Amaro, Annie Cowell, Marion J Tuohy, Gary W Procop, Jacquelyn Morhaime, Sharon L Reed
A 58-year-old Korean-born woman with a history of seizures and psychiatric issues was found dead at home. Autopsy was notable for large, calcified nodules that had nearly replaced her right temporal lobe. Histologic examination revealed the presence of Paragonimus eggs. This case demonstrates a rare manifestation of an aberrantly migrated lung fluke that resulted in epilepsy and sudden death years after the initial infection.
December 7, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27879464/severe-pleuropulmonary-paragonimiasis-caused-by-paragonimus-mexicanus-treated-as-tuberculosis-in-ecuador
#9
Manuel Calvopina, Daniel Romero-Alvarez, Rubén Macias, Hiromu Sugiyama
A 30-year-old male, from a subtropical region of Ecuador, was hospitalized with a 5-year history of persistent cough with rusty brown sputum, chest pain, and progressive dyspnea. The patient underwent thoracic surgery 3 years ago for pleural effusion and subsequently received a 9-month regimen treatment of tuberculosis. However, there was no clinical resolution and symptoms became progressively worse. A chest radiograph and computerized tomography scan showed several small nodules in both lungs. Eggs of Paragonimus spp...
January 11, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27796563/development-of-an-immunodiagnosis-method-using-recombinant-pscp-for-detection-of-paragonimus-skrjabini-infection-in-human
#10
Shasha Yu, Xilin Zhang, Wenbi Chen, Hong Zheng, Guoping Ai, Nan Ye, Ying Wang
Paragonimiasis skrjabini is a kind of zoonosis and prevalent in 16 provinces in China, such as Chongqing, Fujian, Sichuan, and Yunnan. However, sensitive and efficient diagnostic methods for the infection are limited. In order to provide a more convenient and simple method for serologic diagnosis, the recombinant P. skrjabini cysteine protease (PsCP) was expressed, purified, and then used to develop an indirect enzyme-linked immunosorbent assay (ELISA) for detecting anti-PsCP antibodies in human. Given the positive/negative cutoff value as 0...
January 2017: Parasitology Research
https://www.readbyqxmd.com/read/27772589/paragonimus-kellicotti-presenting-with-hemoptysis-and-a-left-upper-lobe-mass
#11
Christopher B Horn, Nikhil R Patel, Jennifer A Hawasli, Melanie A Edwards
A 46-year-old man presented to the thoracic surgery clinic with a 6-month history of cough and hemoptysis refractory to treatment. Examination of specimens from repeated biopsies was nondiagnostic, so the patient underwent video-assisted thoracoscopic left upper lobe wedge resection. Pathologic examination revealed Paragonimus organisms, and the patient was prescribed praziquantel, with resolution of his symptoms. Although Paragonimus infections are common in Asia, they are rare in the United States despite P kellicotti being endemic...
November 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27725555/familial-mediterranean-fever-with-rheumatoid-arthritis-complicated-by-pulmonary-paragonimiasis
#12
Shin-Ichi Nureki, Koji Ishii, Hideaki Fujisaki, Masataka Torigoe, Keisuke Maeshima, Hirotaka Shibata, Eishi Miyazaki, Jun-Ichi Kadota
A 42-year-old woman presented with an intermittent fever and chest and back pain, and an abnormal chest shadow was detected. She was diagnosed with paragonimiasis caused by Paragonimus westermani. Praziquantel therapy improved the abnormal chest shadow, but did not relieve her symptoms. She was also diagnosed with familial Mediterranean fever (FMF), and colchicine therapy resolved her symptoms. She subsequently developed arthralgia and morning stiffness in her hands. We also diagnosed the patient with rheumatoid arthritis (RA), and corticosteroid and salazosulfapyridine therapy improved her symptoms...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27667815/paragonimiasis-in-tuberculosis-patients-in-nagaland-india
#13
Mrinalini Das, Katerina Doleckova, Rahul Shenoy, Jagadish Mahanta, Kanwar Narain, K Rekha Devi, Tongmeth Konyak, Homa Mansoor, Petros Isaakidis
BACKGROUND: One of the infections that mimic tuberculosis (TB) is paragonimiasis (PRG), a foodborne parasitic disease caused by lung flukes of the genus Paragonimus. In the northeastern states of India, TB and PRG are endemic; however, PRG is rarely included in the differential diagnosis of TB. OBJECTIVE: To address limited evidence on the dual burden of TB and PRG in northeastern India, we aimed to document the prevalence of PRG among TB patients using sputum smear, stool examination for children <15 years and ELISA...
2016: Global Health Action
https://www.readbyqxmd.com/read/27661049/feasibility-of-laparoscopic-major-hepatectomy-for-hepatic-paragonimiasis-two-case-reports
#14
Fei Liu, Jingyi Zhang, Chuanfen Lei, Yonggang Wei, Bo Li
BACKGROUND: Though accumulated evidence proved that laparoscopic major hepatectomy was technically feasible, it remains a challenging procedure and is limited to highly specialized centers. Paragonimiasis is one of the most important food-borne parasitic zoonoses caused by the trematode of the genus Paragonimus. Although hepatic paragonimiasis is rare, the previous studies had investigated hepatic paragonimiasis from different perspectives. However, the safety and feasibility of laparoscopic major hepatectomy for hepatic paragonimiasis have not yet been reported in the literature...
September 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27644890/venison-another-source-of-paragonimus-westermani-infection
#15
Ayako Yoshida, Kayoko Matsuo, Junji Moribe, Ryusei Tanaka, Taisei Kikuchi, Eiji Nagayasu, Naoaki Misawa, Haruhiko Maruyama
Paragonimiasis is a typical food-borne parasitic disease, endemic in most parts of Asia, with sporadic case reports from American and African countries. The major source of infection is undercooked freshwater crab or crayfish, though consumption of wild boar meat is also responsible for the infection in Japan, because wild boar is a paratenic host for Paragonimus westermani. Recently, living juveniles of P. westermani were isolated from muscle of a sika deer, Cervus nippon, in Japan, raising the possibility that venison has been another source of infection...
December 2016: Parasitology International
https://www.readbyqxmd.com/read/27619014/conservation-and-diversification-of-the-transcriptomes-of-adult-paragonimus-westermani-and-p-skrjabini
#16
Ben-Wen Li, Samantha N McNulty, Bruce A Rosa, Rahul Tyagi, Qing Ren Zeng, Kong-Zhen Gu, Gary J Weil, Makedonka Mitreva
BACKGROUND: Paragonimiasis is an important and widespread neglected tropical disease. Fifteen Paragonimus species are human pathogens, but two of these, Paragonimus westermani and P. skrjabini, are responsible for the bulk of human disease. Despite their medical and economic significance, there is limited information on the gene content and expression of Paragonimus lung flukes. RESULTS: The transcriptomes of adult P. westermani and P. skrjabini were studied with deep sequencing technology...
September 13, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27562899/molecular-and-immunological-characterization-of-cathepsin-l-like-cysteine-protease-of-paragonimus-pseudoheterotremus
#17
Tippayarat Yoonuan, Supaporn Nuamtanong, Paron Dekumyoy, Orawan Phuphisut, Poom Adisakwattana
Cathepsin L is a cysteine protease belonging to the papain family. In parasitic trematodes, cathepsin L plays essential roles in parasite survival and host-parasite interactions. In this study, cathepsin L of the lung fluke Paragonimus pseudoheterotremus (PpsCatL) was identified and its molecular biological and immunological features characterized. A sequence analysis of PpsCatL showed that the gene encodes a 325-amino-acid protein that is most similar to P. westermani cathepsin L. The in silico three-dimensional structure suggests that PpsCatL is a pro-enzyme that becomes active when the propeptide is cleaved...
December 2016: Parasitology Research
https://www.readbyqxmd.com/read/27516883/two-cases-of-paragonimiasis-westermani-diagnosed-after-eosinophilic-pleural-effusion-induced-hydropneumothorax
#18
Daizo Yaguchi, Motoshi Ichikawa, Daisuke Kobayashi, Noriko Inoue, Masato Shizu, Naoyuki Imai
Our hospital is located in the Tono region in the southeastern district of Gifu Prefecture in which there are forests and inhabitants who still hunt and eat game meat. Therefore, boar meat increases the risk of contracting paragonimiasis. We treated two patients who were infected by Paragonimus westermani after eating boar meat. They developed hydropneumothorax in association with eosinophilic pleural effusion. For patients who have pneumothorax with concomitant pleural effusion and eosinophilia in the pleural fluid analysis, it is necessary to take a detailed history, which includes flesh food consumption and travel to an endemic area, and to make a careful examination while taking into consideration parasitic infections such as paragonimiasis...
May 2016: Respirology Case Reports
https://www.readbyqxmd.com/read/27498617/paragonimus-westermani-infection-mimicking-recurrent-lung-cancer-a-case-report
#19
Naoya Itoh, Mika Tsukahara, Hiroshi Yamasaki, Yasuyuki Morishima, Hiromu Sugiyama, Hanako Kurai
Herein, we report a case of Paragonimus westermani infection, which required differentiation from recurrent lung cancer. A 66-year old Japanese man with a history of lung cancer who had undergone a lobectomy was referred to our clinic for treatment of cough, sputum, dyspnea, and a right pulmonary nodule. He had previously eaten seafood he visited China. P. westermani infection was confirmed by the presence of antibody against P. westermani antigen in the patient's serum and eggs in his sputum. Eventually, molecular identification by PCR-restriction fragment length polymorphism analysis and sequencing confirmed that the patient was infected with triploid forms of P...
December 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27440217/molecular-and-morphological-variation-of-paragonimus-westermani-in-vietnam-with-records-of-new-second-intermediate-crab-hosts-and-a-new-locality-in-a-northern-province
#20
N Pham Doanh, A Luu Tu, T Dung Bui, T Ho Loan, Nariaki Nonaka, Yoichiro Horii, David Blair, Yukifumi Nawa
Paragonimus westermani is one of the most medically important lung flukes and is widely distributed in Asia. It exhibits considerable variation in morphological, genetic and biological features. In central provinces of Vietnam, a high prevalence of metacercariae of this species has been reported from the crab intermediate host, Vietopotamon aluoiense. In this study, we detected P. westermani metacercariae in two additional crab hosts, Donopotamon haii in Quang Tri Province, central Vietnam and Indochinamon tannanti in Yen Bai Province in the north...
October 2016: Parasitology
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