The helminth Baylisascaris schroederi is one of the most harmful parasites infecting giant pandas (Ailuropoda melanoleuca). It is therefore important to develop an exact diagnostic technique to detect this parasite. Using a known number (1, 2, 3, 4, 5, 10, 25, 50, 100) of feces-isolated B. schroederi egg and adult DNA, we developed a PCR to detect a portion of the mitochondrial 12S rRNA and applied it to giant panda fecal samples. The method was sufficiently sensitive to detect B. schroederi DNA from isolated eggs in a fecal sample with a detection threshold of one egg. We detected B. schroederi in 88% of fecal samples, 30% higher than the conventional flotation technique. No cross-reactivity with other common nematode DNA was detected. Our PCR assay may constitute a valuable alternative for the diagnosis of B. schroederi infections.
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http://dx.doi.org/10.7589/2012-07-175 | DOI Listing |
Parasitol Res
December 2023
Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Sichuan, China.
Baylisascaris schroederi is among the most severe intestinal nematodes affecting giant pandas. Developing effective and secure vaccines can be used as a novel strategy for controlling repeated roundworm infection and addressing drug resistance. In our previous study, three recombinant antigens (rBsHP2, rBsGAL, and rBsUP) exhibited promising effects against B.
View Article and Find Full Text PDFParasit Vectors
July 2023
Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.
Animals (Basel)
December 2022
College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China.
is one of the main health risks threatening both wild and captive giant pandas. The administration of anthelmintics is a common method to effectively control infection, but there is a notable risk of anthelmintic resistance (AR) after long-term, constant use of anthelmintics. Four anthelmintics-pyrantel pamoate (PYR), mebendazole (MBZ), albendazole (ABZ), and ivermectin (IVM)-were each administered separately at intervals of 2 months to 22 enrolled giant pandas.
View Article and Find Full Text PDFParasit Vectors
September 2022
Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China.
Background: Giant pandas (Ailuropoda melanoleuca) are the obligate host of the parasitic roundworm Baylisascaris schroederi. The infection of giant pandas with B. schroederi is very common.
View Article and Find Full Text PDFFront Immunol
March 2023
Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China.
() is a severe threat to the survival of giant pandas. Currently, the immune regulation mechanism of is poorly understood. Cysteine protease inhibitors (CPI) play important roles in the regulation of host immune responses against certain nematodes.
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