journal
https://read.qxmd.com/read/36041491/molecular-detection-and-genetic-diversity-of-blastocystis-in-korean-dogs
#21
JOURNAL ARTICLE
Sangsu Suh, Haeseung Lee, Min-Goo Seo, Kyoo-Tae Kim, Kyung-Yeon Eo, Young-Sam Kwon, Sang-Joon Park, Oh-Deog Kwon, Tae-Hwan Kim, Dongmi Kwak
Blastocystis is a genus of unicellular heterokont parasites belonging to a group of organisms known as Stramenopiles, which includes algae, diatoms, and water molds. Blastocystis includes several species that habitat in the gastrointestinal tracts of organisms as diverse as humans, farm animals, birds, rodents, reptiles, amphibians, fish, and cockroaches. It is important to public health and distributed globally, but its prevalence in dogs in Korea has not been reported to date. Here, we collected 787 canine fecal samples and assessed Blastocystis infection by age, sex, region, season, and diarrhea symptoms...
August 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/36041490/an-evaluation-of-a-new-quantitative-point-of-care-diagnostic-to-measure-glucose-6-phosphate-dehydrogenase-activity
#22
JOURNAL ARTICLE
Young Yil Bahk, Seong Kyu Ahn, Heung Jin Jeon, Byoung-Kuk Na, Sung-Keun Lee, Ho-Joon Shin
Malaria continues to be one of the most crucial infectious burdens in endemic areas worldwide, as well as for travelers visiting malaria transmission regions. It has been reported that 8-aminoquinolines are effective against the Plasmodium species, particularly primaquine, for anti-hypnozoite therapy in P. vivax malaria. However, primaquine causes acute hemolytic anemia in individuals with glucose-6-phosphate dehydrogenase (G6PD) deficiency. Therefore, G6PD deficiency testing should precede hypnozoite elimination with 8-aminoquinoline...
August 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/36041489/morphological-identification-and-phylogenetic-analysis-of-laelapin-mite-species-acari-mesostigmata-laelapidae-from-china
#23
JOURNAL ARTICLE
Huijuan Yang, Zhihua Yang, Wenge Dong
Laelapinae mites are involved in transmission of microbial diseases between wildlife and humans, with an impact on public health. In this study, 5 mite members in the subfamily Laelapinae (laelapin mites; LM) were morphologically identified by light microscopy, and the phylogenetic relationship of LM was analyzed in combination with the sequence information of part of the LM cytochrome oxidase subunit I (cox1) gene. The morphological identification revealed that 5 mites belonged to the genera Laelaps and Haemolaelaps, respectively...
August 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/36041488/relationship-between-clonorchis-sinensis-infection-and-cholangiocarcinoma-in-korea
#24
JOURNAL ARTICLE
Hwa Sun Kim, Ho-Woo Nam, Hye-Jin Ahn, Dongjae Kim, Yeong Hoon Kim
This study provides an overview of the current status of clonorchiasis and cholangiocarcinoma (CCA), and their relationship in Korea during 2012-2020. Data were obtained from the Health Insurance Review & Assessment Service of Korea. Cluster, trend, and correlation analyses were performed. Gyeongsangnam-do and Seoul had the highest average number of cases (1,026 and 4,208) and adjusted rate (306 and 424) for clonorchiasis and CCA, respectively. The most likely clusters (MLC) for clonorchiasis and CCA were Busan/Gyeongsangnam-do/Ulsan/Daegu/Gyeongsangbuk-do (Relative Risk; RR = 4...
August 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/36041487/mapping-of-the-complement-c9-binding-region-on-clonorchis-sinensis-paramyosin
#25
JOURNAL ARTICLE
Jung-Mi Kang, Hương Giang Lê, Tuấn Cường Võ, Won Gi Yoo, Woon-Mok Sohn, Byoung-Kuk Na
Heliminthic paramyosin is a multifunctional protein that not only acts as a structural protein in muscle layers but as an immune-modulatory molecule interacting with the host immune system. Previously, we found that paramyosin from Clonorchis sinensis (CsPmy) is bound to human complement C9 protein (C9). To analyze the C9 binding region on CsPmy, overlapping recombinant fragments of CsPmy were produced and their binding activity to human C9 was investigated. The fragmental expression of CsPmy and C9 binding assays revealed that the C9 binding region was located at the C-terminus of CsPmy...
August 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/36041486/trichinella-infection-ameliorated-vincristine-induced-neuroinflammation-in-mice
#26
JOURNAL ARTICLE
Young Rae Jo, Hwan Tae Park, Hak Sun Yu, Hyun-Hee Kong
Vincristine (VCR) is a chemotherapeutic agent widely used in treatment of malignancies. However, VCR has a limitation in use since it commonly causes a painful neuropathy (VCR-induced peripheral neuropathy, VIPN). Inflammatory cytokines secreted by immune cells such as macrophages can exacerbate allodynia and hyperalgesia, because inhibiting the inflammatory response is a treatment target for VIPN. In this study, we investigated whether Trichinella spiralis, a widely studied helminth for its immunomodulatory abilities, can alleviate VCR-induced allodynia...
August 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/36041485/development-of-toxoplasma-gondii-chinese-i-genotype-wh6-strain-in-cat-intestinal-epithelial-cells
#27
JOURNAL ARTICLE
Guihua Zhao, Lixin Zhang, Lisha Dai, Haozhi Xu, Chao Xu, Ting Xiao, Jun Li, Hui Sun, Beibei Zhou, Kun Yin
Felids are the unique definitive host of Toxoplasma gondii. The intestine of felid is the only site for initiating Toxoplasma gondii sexual reproduction. T. gondii excretes millions of infectious oocysts from the intestine, which are the primary source of infection. There are many difficulties in developing vaccines and drugs to control oocyst excretion due to the lack of an appropriate experimental model. Here, we established an in vitro feline intestinal epithelial cell (IEC) infection system and an efficient animal model of T...
August 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/36041484/free-living-amoeba-vermamoeba-vermiformis-induces-allergic-airway-inflammation
#28
JOURNAL ARTICLE
Da-In Lee, Sung Hee Park, Shin-Ae Kang, Do Hyun Kim, Sun Hyun Kim, So Yeon Song, Sang Eun Lee, Hak Sun Yu
The high percentage of Vermamoeba was found in tap water in Korea. This study investigated whether Vermamoeba induced allergic airway inflammation in mice. We selected 2 free-living amoebas (FLAs) isolated from tap water, which included Korean FLA 5 (KFA5; Vermamoeba vermiformis) and 21 (an homolog of Acanthamoeba lugdunensis KA/ E2). We axenically cultured KFA5 and KFA21. We applied approximately 1 × 106 to mice's nasal passages 6 times and investigated their pathogenicity. The airway resistance value was significantly increased after KFA5 and KFA21 treatments...
August 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35772742/determination-of-knockdown-resistance-kdr-allele-frequencies-t929i-mutation-in-head-louse-populations-from-mexico-canada-and-peru
#29
JOURNAL ARTICLE
Gustavo Ponce-Garcia, Olga K Villanueva-Segura, Karina Garza-Elizondo, Heriberto M Villegas-Ramirez, Ildefonso Fernandez-Salas, Iram P Rodriguez-Sanchez, Felipe Dzul-Manzanilla, Adriana E Flores-Suarez
The head louse Pediculus humanus capitis (De Geer) is a hematophagous ectoparasite that inhabits the human scalp. The infestations are asymptomatic; however, skin irritation from scratching occasionally may cause secondary bacterial infections. The present study determined the presence and frequency of the knockdown resistance (kdr) mutation T929I in 245 head lice collected from Mexico, Peru, and Canada. Head lice were collected manually using a comb in the private head lice control clinic. Allele mutation at T9291 was present in 100% of the total sampled populations (245 lice) examined...
June 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35772741/ozobranchus-jantseanus-clitellata-ozobranchidae-from-reeve-s-turtle-mauremys-reevesii-new-annelid-fauna-in-korea
#30
JOURNAL ARTICLE
Kyo Soung Koo, Kayoung Yun, Yikweon Jang
Turtle leeches have not been recorded in Korea, although they occur in geographically adjacent countries including China and Japan. This study describes a turtle leech, Ozobranchus jantseanus (Clitellata: Ozobranchidae), found from Reeve's turtle (Mauremys reevesii) in Korea. Of the 143 Reeve's turtles collected from the freshwater reservoir in Jinju City, Gyeongsangnam-do, Korea, 95 unidentified leeches were found in 8 (5.6%) individuals. The leeches had 22 somites with 11 pairs of externally exposed branchiae, body-sized posterior suckers, and spines on the dorsal surface...
June 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35772740/distribution-of-gastrointestinal-parasitic-infection-in-domestic-pigs-in-the-republic-of-korea-nationwide-survey-from-2020-2021
#31
JOURNAL ARTICLE
Subin Lee, Badriah Alkathiri, Dongmi Kwak, Sang-Myeong Lee, Wan-Kyu Lee, Jae-Won Byun, Seung-Hun Lee
This study aimed to examine the distribution of gastrointestinal parasitic infections in domestic pigs in the Republic of Korea. From May 2020 to October 2021, 364 pig fecal samples were collected from 75 farms in 7 Provinces and microscopically examined. A total of 170 (46.7%) pigs were infected with at least one of the following parasites: Balantioides coli, strongyles, Ascaris suum, Trichuris suis, and coccidia. By parasite species, B. coli, strongyles, A. suum, T. suis, and coccidia oocysts or eggs were detected in 144 (39...
June 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35772739/a-fluorescent-recombinase-aided-amplification-assay-for-detection-of-babesia-microti
#32
JOURNAL ARTICLE
Hong Lin, Song Zhao, Yuying Ye, Lei Shao, Nizhen Jiang, Kun Yang
Babesia microti is one of the most common causative agents of babesiosis. A sensitive and rapid detection is necessary for screening potentially infected individuals. In this study, B. microti cytochrome c oxidase subunit I (cox1) was selected as the target gene, multiple primers were designed, and optimized by a recombinase-aided amplification (RAA) assay. The optimal primers and probe were labeled with fluorescein. The sensitivity of fluorescent RAA (fRAA) was evaluated using gradient diluents of the cox1 recombinant plasmid and genomic DNA extracted from whole blood of B...
June 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35772738/unexpected-presence-of-blastocystis-subtype-1-3-dna-in-human-vaginal-and-sperm-samples-coinfected-with-trichomonas-vaginalis
#33
JOURNAL ARTICLE
Guiehdani Villalobos, Fabiola Sanchez-Aguillon, Marcia Veronica Carmona-Maldonado, Nelly Raquel Gonzalez-Arenas, Eduardo Lopez-Escamilla, Rigoberto Hernandez-Castro, Mirza Romero-Valdovinos, Williams Arony Martinez-Flores, Juan Pablo Ramirez-Hinojosa, Pablo Maravilla, Fernando Martinez-Hernandez
There have been few reports on extra-enteric infections by Blastocystis STs and none have been molecularly identified in samples from human reproductive organs. We report for the first time the identification of 3 different subtypes of Blastocystis (ST1-3) in vaginal and sperm samples, from patients infected with Trichomonas vaginalis. Blastocystis STs were identified by PCR-sequencing and by phylogenetic inferences using 28 vaginal swab samples and 7 sperm samples from patients trichomoniasis. Blastocystis STs were identified in 6 of 28 vaginal swabs (21...
June 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35772737/status-of-helminthic-infections-in-residents-around-river-basins-in-the-republic-of-korea-for-10-years-2011-2020
#34
JOURNAL ARTICLE
Myoung-Ro Lee, Hee-Eun Shin, Seon-Ok Back, Young-Ju Lee, Hee-Il Lee, Jung-Won Ju
The positive rate of Clonorchis sinensis is the highest among intestinal parasites in the Republic of Korea (Korea). More than 1.2 million people were at risk of C. sinensis infection in Korea in 2012. An intensive control program is being implemented for residents of the 5 major river basins to reduce helminthic infections, including C. sinensis infection. This study evaluated the continuous intensive control program for parasitic diseases including clonorchiasis in areas near the 5 major river basins in Korea over the past 10 years (2011-2020)...
June 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35772736/seropositivity-rates-of-strongyloides-stercoralis-antibody-in-the-southeastern-region-of-republic-of-korea-a-single-center-retrospective-study
#35
JOURNAL ARTICLE
Taehwa Kim, Seungjin Lim
Strongyloides stercoralis infection is not endemic in the Republic of Korea (Korea) with a positivity rate of <1% in stool examination. However, there is a risk of hyperinfection in immunosuppressed individuals. It is necessary to determine the seropositivity of S. stercoralis antibodies in Korea. This study investigated the seropositivity of S. stercoralis antibodies in the southeastern area of Korea. From January 2019 to June 2021, serum samples were collected from participants who visited the study center in the southeastern region of Korea for routine health check-ups...
June 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35772735/malaria-endemicity-in-the-rural-communities-of-ebonyi-state-nigeria
#36
JOURNAL ARTICLE
David Ekene Nwele, Ikechukwu Oliver Onyali, Milliam Okwudili Iwueze, Michael Okpara Elom, Ogbonna Elom Sabastian Uguru
Malaria remains a global health threat. Approximately 97% of the population is at risk in sub-Saharan countries, particularly Nigeria. This study compared the performance of 2 diagnostic methods in assessing malaria endemicity in the rural communities of Ebonyi State, Nigeria. A total of 1,140 study participants were screened for malaria parasite using Rapid Diagnostic Test kits (RDT) in the field, while thick and thin films for microscopy were examined in the laboratory. Our result showed that malaria prevalence was 56...
June 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35772734/kinesin-13-a-motor-protein-is-regulated-by-polo-like-kinase-in-giardia-lamblia
#37
JOURNAL ARTICLE
Eun-Ah Park, Juri Kim, Mee Young Shin, Soon-Jung Park
Kinesin-13 (Kin-13), a depolymerizer of microtubule (MT), has been known to affect the length of Giardia. Giardia Kin-13 (GlKin-13) was localized to axoneme, flagellar tips, and centrosomes, where phosphorylated forms of Giardia polo-like kinase (GlPLK) were distributed. We observed the interaction between GlKin-13 and GlPLK via co-immunoprecipitation using transgenic Giardia cells expressing Myc-tagged GlKin-13, hemagglutinin-tagged GlPLK, and in vitro-synthesized GlKin-13 and GlPLK proteins. In vitro-synthesized GlPLK was demonstrated to auto-phosphorylate and phosphorylate GlKin-13 upon incubation with [γ-32P]ATP...
June 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35772733/signaling-role-of-nadph-oxidases-in-ros-dependent-host-cell-death-induced-by-pathogenic-entamoeba-histolytica
#38
JOURNAL ARTICLE
Young Ah Lee, Seobo Sim, Kyeong Ah Kim, Myeong Heon Shin
All living organisms are destined to die. Cells, the core of those living creatures, move toward the irresistible direction of death. The question of how to die is critical and is very interesting. There are various types of death in life, including natural death, accidental death, questionable death, suicide, and homicide. The mechanisms and molecules involved in cell death also differ depending on the type of death. The dysenteric amoeba, E. histolytica, designated by the German zoologist Fritz Schaudinn in 1903, has the meaning of tissue lysis; i...
June 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35500897/specific-detection-of-acanthamoeba-species-using-polyclonal-peptide-antibody-targeting-the-periplasmic-binding-protein-of-a-castellanii
#39
JOURNAL ARTICLE
Min-Jeong Kim, Fu-Shi Quan, Hyun-Hee Kong, Jong-Hyun Kim, Eun-Kyung Moon
Acanthamoeba keratitis (AK) is a rare ocular disease, but it is a painful and sight-threatening infectious disease. Early diagnosis and adequate treatment are necessary to prevent serious complications. While AK is frequently diagnosis via several PCR assays or Acanthamoeba-specific antibodies, a more specific and effective diagnostic method is required. This study described the production of a polyclonal peptide antibody against the periplasmic binding protein (PBP) of A. castellanii and investigated its diagnostic potential...
April 2022: Korean Journal of Parasitology
https://read.qxmd.com/read/35500896/myiasis-in-ulcerated-breast-carcinoma-first-case-record-in-myanmar
#40
Aung Phyo Wai, Win Win Maw, Thidarut Boonmars
Myiasis is an infestation of maggot, which is frequently associated with poor personal hygiene and environmental sanitation. A 78-year-old female breast cancer patient visited clinic complaining of irritation, itching, and pain within the ulcerous cancer lesion for 3 weeks. Many maggots were found in the lesion. A total of 30 maggots were removed and identified to be 3rd stage of larvae of metallic fly. This is the first case of wound myiasis in advanced breast carcinoma as a complication of untreated or drug-induced ulcer...
April 2022: Korean Journal of Parasitology
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