2.Traditional Chinese medicine for treatment of echinococcosis: a review.
Q CHEN ; C LIU ; C LI ; B ZHANG ; H FAN
Chinese Journal of Schistosomiasis Control 2023;35(4):398-406
Echinococcosis is a zoonotic parasitic disease caused by infection with Echinococcus species. As the drug of first choice for treatment of echinococcosis, albendazole suffers from problems of large doses and remarkable adverse reactions in clinical therapy. Development of novel drugs against echinococcosis is of urgent need. Recently, great advances have been achieved in the research on traditional Chinese medicine for treatment of echinococcosis. This review summarizes the progress of researches on traditional Chinese medicine for treatment of echinococcosis, aiming to provide insights into development of anti-echinococcosis drugs.
Animals
;
Humans
;
Medicine, Chinese Traditional
;
Echinococcosis/parasitology*
;
Albendazole/therapeutic use*
;
Zoonoses
;
Echinococcus multilocularis
3.Preliminary application of recombinase -aided amplification in detection of Clonorchis sinensis metacercariae in freshwater fish.
J CHEN ; Z WANG ; W HUANG ; J WANG ; L CHEN ; Y SUN ; L ZHAO ; Y ZHAO ; Y QIAN ; J DUAN ; Q ZHANG
Chinese Journal of Schistosomiasis Control 2023;35(5):458-463
OBJECTIVE:
To evaluate the performance of recombinase-aided amplification (RAA) assay in detection of Clonorchis sinensis metacercariae in freshwater fish samples, so as to provide insights into standardization and field application of this assay.
METHODS:
Wild freshwater fish samples were collected in the rivers of administrative villages where C. sinensis-infected residents lived in Jiangyan District, Xinghua County and Taixing County of Taizhou City, Jiangsu Province from June to September 2022. Genomic DNA was extracted from six freshwater fish specimens (5 g each) containing 0, 1, 2, 4, 8 and 16 C. sinensis metacercariae for fluorescent RAA assay, and the diagnostic sensitivity was evaluated. Fluorescent RAA assay was performed with genomic DNA from C. sinensis, Metorchis orientalis, Haplorchis pumilio and Centrocestus formosanus metacercariae as templates to evaluate its cross-reactions. In addition, the detection of fluorescent RAA assay and direct compression method for C. sinensis metacercariae was compared in field-collected freshwater fish samples.
RESULTS:
Positive amplification was found in fresh-water fish specimens containing different numbers of C. sinensis metacercariae, and fluorescent RAA assay was effective to detect one C. sinensis metacercaria in 5 g freshwater fish specimens within 20 min. Fluorescent RAA assay tested negative for DNA from M. orientalis, H. pumilio and C. formosanus metacercariae. Fluorescent RAA assay and direct compression method showed 5.36% (93/1 735) and 2.88% (50/1 735) detection rates for C. sinensis metacercariae in 1 735 field-collected freshwater fish samples, with a statistically significant difference seen (χ2 = 478.150, P < 0.001). There was a significant difference in the detection of C. sinensis metacercariae in different species of freshwater fish by both the direct compression method (χ2 = 11.20, P < 0.05) and fluorescent RAA assay (χ2 = 20.26, P < 0.001), and the detection of C. sinensis metacercariae was higher in Pseudorasbora parva than in other fish species by both the direct compression method and fluorescent RAA assay (both P values < 0.05).
CONCLUSIONS
Fluorescent RAA assay has a high sensitivity for detection of C. sinensis metacercariae in freshwater fish samples, and has no cross-reactions with M. orientalis, H. pumilio or C. formosanus metacercariae. Fluorescent RAA assay shows a higher accuracy for detection of C. sinensis infections in field-collected freshwater fish than the direct compression method.
Animals
;
Clonorchis sinensis/genetics*
;
Metacercariae/genetics*
;
Recombinases
;
Fresh Water
;
Fishes
;
DNA
;
Fish Diseases/diagnosis*
4.Molecular detection and subtyping of Blastocystis sp. in pigs in Anhui Province.
S GAO ; J WANG ; X WU ; X LUO ; Q LI ; D CHEN ; X LIU ; W LI
Chinese Journal of Schistosomiasis Control 2023;35(5):508-512
OBJECTIVE:
To investigate the prevalence and subtype distribution of Blastocystis sp. in pigs in Anhui Province.
METHODS:
A total of 500 stool samples were collected from large-scale pig farms in Bozhou, Anqing, Chuzhou, Hefei, Fuyang, and Lu'an cities in Anhui Province from October to December 2015. Blastocystis was detected in pig stool samples using a PCR assay based on the small subunit ribosomal RNA (SSU rRNA) gene, and positive samples were subjected to sequencing and sequence analysis. Blastocystis subtypes were characterized in the online PubMLST database, and verified using phylogenetic tree created with the neighbor-joining algorithm in the Meta software.
RESULTS:
The prevalence of Blastocystis infection was 43.2% (216/500) in pigs in 6 cities of Anhui Province, and all pig farms were tested positive for Blastocystis. There was a region-specific prevalence rate of Blastocystis (17.2% to 50.0%) (χ2 = 26.084, P < 0.01), and there was a significant difference in the prevalence of Blastocystis sp. among nursery pigs (39.6%), preweaned pigs (19.1%), and growing pigs (62.3%) (χ2 = 74.951, P < 0.01). Both online inquiry and phylogenetic analysis revealed ST1, ST3, and ST5 subtypes in pigs, with ST5 as the predominant subtype.
CONCLUSIONS
The prevalence of Blastocystis sp. is high in pigs in Anhui Province, with three zoonotic subtypes identified, including ST1, ST3, and ST5.
Animals
;
Swine
;
Blastocystis/genetics*
;
Phylogeny
;
Blastocystis Infections/veterinary*
;
Polymerase Chain Reaction
;
Prevalence
;
Feces
;
Genetic Variation
10.Cribriform-morular thyroid cancer: report of a case.
J Q WANG ; D CHEN ; W FANG ; J F SHANG ; M H ZHENG ; F DONG
Chinese Journal of Pathology 2023;52(10):1061-1063

Result Analysis
Print
Save
E-mail