The occurrence of the nematodes, and in the intestinal tract of a six-year-old, free ranging male elephant () observed during necropsy is reported. The worms were collected in 10% formalin and processed. worms were stout, males were shorter than females. A total of 65 worms were recovered out of which 45 were male worms and 20 were female worms. They had a characteristic head with a cuticular prominence and a sub globular cup shaped buccal capsule without teeth. The external leaf crown was characteristic projecting above the anterior end of the worm. The oesophagus was enlarged immediately behind the buccal capsule, then cylindrical, and gradually enlarged. Male worms had a well-developed bursa at the posterior end with equal, alate and ornamentated spicules with elongated lateral bursal lobes. Female worms had a tapered tail with a conical prominence and a vulval opening at its summit. Uterus was filled with thin shelled eggs. male worms were shorter in length than female worms. A total of 150 worms were recovered out of which 110 were male worms and 40 were female worms. Cuticular striations were observed. Mouth collar and buccal capsule were present. The external leaf crown projected beyond the surface of the head. Male worms had a well-developed bursa and spicules. The dorsal ray of the bursa was comparatively short. The lateral and ventral rays were slender. Female worms had a pointed tail. The vulva was situated at a distance from the tip of the tail. Uterus was filled with oval thin shelled eggs. Pathological findings included pale mucous membrane, anaemia and haemorrhagic enteritis. The present observations on the occurrence of nematode infection with and will be important to map the status of nematodiasis in elephants in wild and to frame strategies for control of intestinal nematodiasis in wild elephants.
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http://dx.doi.org/10.1007/s12639-024-01733-8 | DOI Listing |
Cells
February 2025
College of Veterinary Medicine, Jilin University, Changchun 130062, China.
(1) Background: (CE) is an -induced worldwide parasitic zoonosis and is a recognized public health and socio-economic concern. The liver is the major target organ for CE's infective form protoscolex (PSCs), which causes serious liver damage and endangers the host's life. Reports show that PSC infection causes liver cell Fe metabolism disorder and abnormal deposition of Fe in liver cells and results in liver cell death.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
March 2025
Department of Psychology, New York University, New York, NY 10003.
Adults tend to view men (more so than women) as default , with numerous real-world consequences for gender equity. In the United States, the tendency to center men in concepts of develops across middle childhood, yet the specific mechanisms that contribute to it remain unknown. Here, we investigate one subtle but potentially powerful social mechanism: the category labels that parents use to describe boys/men and girls/women in conversations with their children.
View Article and Find Full Text PDFGametogenesis is the process by which germ cells differentiate into mature sperm and oocytes, cells essential for sexual reproduction. The sex-specific molecular programs that drive spermatogenesis and oogenesis can also serve as sex identification markers. Platynereis dumerilii is a research organism that has been studied in many areas of developmental biology.
View Article and Find Full Text PDFJ Zoo Wildl Med
March 2025
Hospital de Especies Menores y Silvestres, Escuela de Medicina Veterinaria, Universidad Nacional, Heredia, Costa Rica.
Wildlife conservation law in Costa Rica protects common motmots (), limiting the specimens available to study their health and biology. This report describes the finding of the trematode in the trachea, air sacs, lung, and celomatic cavity of two free-living . Histiocytic air sacculitis and pleuritis with granulomas containing trematodes, as well as adhesions between the air sacs and pericardium, were observed.
View Article and Find Full Text PDFFolia Parasitol (Praha)
February 2025
Laboratorio de Helmintologia, Departamento de Zoologia, Instituto de Biologia, Universidad Nacional Autonoma de Mexico, Mexico City, Mexico *Address for correspondence: Alejandro Oceguera-Figueroa, Laboratorio de Helmintologia, Departamento de Zoologia, Instituto de Biologia, Universidad Nacional Autonoma de Mexico, Ciudad de Mexico, Mexico. Avenida Universidad 3000, Ciudad Universitaria, Coyoacan, C.P. 04510. Mexico City, Mexico. E-mail.
A new species of Acanthocephala is described based on specimens found parasitising the intestine of the gafftopsail pompano Trachinotus rhodopus Gill in the State of Oaxaca, off the Pacific coast of Mexico. Rhadinorhynchus villalobosi sp. n.
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