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Parasitic intestinal infestations

Egina C Villalobos-Hernández, Carlos Barajas-López, Elizabeth A Martínez-Salazar, Roberto C Salgado-Delgado, Marcela Miranda-Morales
Intestinal parasites alter gastrointestinal (GI) functions like the cholinergic function. Aspiculuris tetraptera is a pinworm frequently observed in laboratory facilities, which infests the mice cecum and proximal colon. However, little is known about the impact of this infection on the GI sensitivity. Here, we investigated possible changes in spontaneous mesenteric nerve activity and on the mechanosensitivity function of worm-free regions of naturally infected mice with A. tetraptera. Infection increased the basal firing of mesenteric afferent nerves in jejunum...
September 2017: Autonomic Neuroscience: Basic & Clinical
Ramanathan Thamizhmani, Attayur Purushottaman Sugunan, P Ramya Raghvan, Paluru Vijayachari
Acute childhood diarrhoea remains one of the leading causes of childhood morbidity and mortality in developing countries. The present study was conducted to estimate the prevalence of various intestinal parasitic infestation among children aged 5 years and less suffering from acute diarrhoea disease attending hospitals in Andaman Islands. During the period from January 2012 to December 2013, a total of 675 acute diarrhoea patients were included in the study. Among these samples, 476 (70.5, 95 % CI 66.9, 73...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
Sanjeev Attry, Raghavendra Nayak, S K Saha, S N Ghosh
Hydatid diseases is a parasitic infestation of human and herbivorous animals caused by a cestode, Echinococcus granulosus, which resides in the intestine of definitive hosts like dogs and some wild carnivores like foxes. Liver and lung are commonly involved organs and involvement of muscles and bones is very unusual. Hydatid cyst of the temporalis muscle is extremely rare, even in the countries where echinococcal infestation is endemic. We report a case of 23-year-old female patient with a cystic swelling in the right temporalis muscle which turned out to be hydatid cysts...
April 2017: Asian Journal of Neurosurgery
Eun-Jung Bak, Young-Hwa Jean, Gye-Hyeong Woo
Four thoroughbred horses showing lameness, ataxia, circling, depression, recumbency, and seizures, were submitted. The horses had grossly weak to dark red appearances and foci in the central nervous system. Multifocal to coalescing eosinophilic necrotizing encephalomyelitis was observed histologically in the CNS as well as intact or degenerated nematodes. Nematodes had polymyarian-coelomyarian musculature, a smooth thin cuticle, and intestines lined by multinucleated cells with microvilli. These traits suggested the nematodes belonged to the family Protostrongylidae, which includes P...
April 6, 2017: Journal of Veterinary Science
S H Sheema, M V John, P V George
Echinorhynchus veli (George and Nadakal, 1978), an acanthocephalid worm infesting the estuarine flat fish, Synaptura orientalis, was collected from the Veli lake, Kerala. The parasite was recovered from the intestine of the host fish. The detailed surface morphology was studied with the help of scanning electron microscope. The study revealed a cylindrical, medially swollen proboscis with a flat apex, backward directed hooks, each with smooth surface, broad base, pointed tip and an epidermal elevation at the point of insertion...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
G Coulibaly, K P Yao, M Koffi, B A Ahouty, L K Louhourignon, M N'Cho, E K N'Goran
A prospective study was carried out from 2010 to 2012 at the Hôpital Général d'Abobo (HGA) in Abidjan, in order to determine the impact of infectious and parasitic diseases on child cognitive development. Blood samples were examined by means of thick drop and blood smear; as for stool by direct examination and concentration by formalin-ether method. We evaluated the prevalence, the parasite load of malaria and gastrointestinal parasites; then we investigated the risk factors for these disorders. Overall, 331 pregnant women in the last trimester of their pregnancy were enrolled...
May 2017: Bulletin de la Société de Pathologie Exotique
Mona Rezapour, Nikhil Agarwal
Human anisakiasis is acquired through eating raw or undercooked saltwater fish or squid. Infestation with living larvae caused by eating parasitized fish often times results in gastroenteritis. It mainly involves the stomach and small intestine with no reported cases of eosinophilic esophagitis caused by Anisakidea. A 41-year-old man presented for the evaluation of 1 year of dysphagia to solid foods and was found to have endoscopic findings consistent with eosinophilic esophagitis with pathology showing 100 eosinophils per high-power field...
2017: ACG Case Reports Journal
Rod Suepaul, Roxanne Charles, Francis Dziva
The agouti ( Dasyprocta leporina ) is a New World wild rodent hunted for its meat in Trinidad and other Latin American countries. Studies on agouti under captive conditions have yielded some data on health-related aspects, but relatively very little is known about their wild counterparts. The environment of the agouti can influence the microflora and parasites harbored by the animals, which may contain zoonotic pathogens. Here, the microflora found on the nasal mucosa and sections of the intestinal tract and endoparasites of freshly shot agouti from various areas of Trinidad are described...
December 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Asifa Wali, Masood-Ul Hassan Balkhi, Rafia Maqbool, Mohammed Maqbool Darzi, Feroz Ahmad Shah, Farooz Ahmad Bhat, Bilal Ahmad Bhat
The present study was undertaken to determine the incidence of helminth parasites in fishes with special reference to water quality parameters in Dal Lake and River Jhelum and correlate the observations. Water, fish, and parasite samples were collected during different seasons from various sites and processed. Three fish species, namely, Schizothorax niger Heckel 1838, Schizothorax esocinus Heckel 1838, and Schizothorax curvifrons Heckel 1838, were recovered from these water bodies. The physicochemical parameters temperature, dissolved oxygen, pH, and free carbon dioxide showed variation vis-à-vis the season and location of the stations in water bodies...
2016: Journal of Parasitology Research
A Nematollahi, S Jaberi, J Ashrafi Helan, N Sheikhzadeh
During March 2012 through February 2013, 100 freshwater ornamental fishes in 22 species from some aquarium fish shops were examined. Specimens were dissected and tissue samples consisted of liver, kidney, spleen, heart, intestine, ovary, brain and eye were fixed in 10 % buffered formalin and sections were provided and stained with hematoxylin and eosin, Periodic Acid-Schiff, Giemsa and acid-fast staining (Ziehl-Neelsen). At present study six species of protozoans consisting of Eimeria spp. Cryptosporidium spp...
September 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
Tong-Soo Kim, Jhang Ho Pak, Jong-Bo Kim, Young Yil Bahk
Parasitic diseases remain an unarguable public health problem worldwide. Liver fluke Clonorchis sinensis is a high risk pathogenic parasitic helminth which is endemic predominantly in Asian countries, including Korea, China, Taiwan, Vietnam, and the far eastern parts of Russia, and is still actively transmitted. According to the earlier 8th National Survey on the Prevalence of Intestinal Parasitic Infections in 2012, C. sinensis was revealed as the parasite with highest prevalence of 1.86% in general population among all parasite species surveyed in Korea...
November 2016: BMB Reports
G I Izvekova, M M Solovyev
The activity and spectrum of proteinases in the intestines of host fishes change upon infestation with cestodes. Serine proteinases are found to make a greater contribution to the total proteolytic activity. The reduction of proteolytic activity is associated with adsorption of the enzymes of the host on the surface of cestodes, and the increase in the activity is caused by the injury of the intestinal mucosa by the attachment apparatuses of cestodes. The inhibition of proteainase activity indicates the possible participation of microbiota enzymes in protein hydrolyses...
March 2016: Izvestiia Akademii Nauk. Seriia Biologicheskaia
Liv Sandlund, Frank Nilsen, Rune Male, Sussie Dalvin
The function of the ecdysone receptor (EcR) during development and molting has been thoroughly investigated in some arthropods such as insects but rarely in crustacean copepods such as the salmon louse Lepeophtheirus salmonis (L. salmonis) (Copepoda, Caligidae). The salmon louse is an ectoparasite on Atlantic salmon that has major economical impact in aquaculture due to the cost of medical treatment methods to remove lice from the fish. Handling of salmon louse infestations is further complicated by development of resistance towards available medicines...
August 2016: Molecular and Biochemical Parasitology
Dikeledi P Malatji, Anna M Tsotetsi, Este van Marle-Koster, Farai C Muchadeyi
The majority of rural households in developing countries own village chickens that are reared under traditional scavenging systems with few inputs and exposure to various parasitic infestations. Understanding of the village chicken farming system and its influence on helminth infestation is a prerequisite for optimal prevention and control strategies. This study investigated the village chicken production system and associated gastrointestinal parasites in 87 households from Limpopo (n = 39) and KwaZulu-Natal (n = 48) provinces of South Africa...
May 12, 2016: Onderstepoort Journal of Veterinary Research
Andressa Noronha Barbosa-Silva, Antonia Cláudia Jácome da Câmara, Kiev Martins, Daniela Ferreira Nunes, Pedro Igor Câmara de Oliveira, Paulo Roberto Medeiros de Azevedo, Egler Chiari, Lúcia Maria da Cunha Galvão
INTRODUCTION Natural and artificial ecotope infestation by the kissing bug triatomines and their colonization and infection by Trypanosoma cruzi , the Chagas disease agent, were evaluated in nine municipalities of the State of Rio Grande do Norte, Brazil. METHODS Following identification, triatomine intestinal contents were analyzed by direct microscopic examination, xenoculture, and polymerase chain reaction (PCR) for parasite detection. Trypanosoma cruzi isolates were genotyped using three different markers...
February 2016: Revista da Sociedade Brasileira de Medicina Tropical
Sylvia L Mayr, Kristina Maier, Jana Müller, Dirk Enderlein, Achim D Gruber, Michael Lierz
Sarcocystis is a large genus of protozoan parasites with complex heteroxenous life cycles. For many species, either the intermediate or the definitive host is still unknown. In this study, 116 Accipiter hawks (Eurasian sparrowhawks and northern goshawks) were investigated for the presence of Sarcocystis spp. in their intestinal tract or their faeces. To gain a wide distribution, samples were collected throughout Germany within 2 years. It was possible to detect Sarcocystis-like oocysts in 65 samples. Sequencing of the ITS region or species-specific PCR identified 33 samples as Sarcocystis turdusi/Sarcocystis sp...
August 2016: Parasitology Research
Yuko Mabuchi, Theresa L Frankel
Racing pigeons are exposed to and act as carriers of diseases. Dietary protein requirement for their maintenance has not been determined experimentally despite their being domesticated for over 7000 years. A maintenance nitrogen (protein) requirement (MNR) for pigeons was determined in a balance study using diets containing 6, 10 and 14% crude protein (CP). Then, the effects of feeding the diets were investigated to determine whether they were adequate to sustain innate and acquired immune functions. Nitrogen intake from the 6% CP diet was sufficient to maintain nitrogen balance and body weight in pigeons...
March 2016: Royal Society Open Science
P Kapur, A K Das, P R Kapur, M Dudeja
Protozoal infections are common in the tropics. Amoebic colitis is the commonest of these infections and can lead to liver abscess as a complication. Balantidium coli is a rare free moving protozoal parasite which is known to infest human large intestine causing a type of colitis very similar to that caused by Entamoeba histolytica. However this pathogen is not known to cause liver invasion in humans. We report here a case of liver abscess caused by B. coli, which is probably the first such case reported in Indian literature...
March 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
Lilian S Catenacci, Adriana C Colosio, Leonardo C Oliveira, Kristel M De Vleeschouwer, Alexandre D Munhoz, Sharon L Deem, Jaqueline M S Pinto
Parasite prevalence and abundance are important factors affecting species' conservation. During necropsies on a free-living golden-headed lion tamarin ( Leontopithecus chrysomelas ) and two Wied's marmosets ( Callithrix kuhlii ) in the Atlantic Forest of southern Bahia, Brazil, we collected a large number of adult intestinal parasites that we identified as Prosthenorchis elegans. This parasite is pathogenic for neotropical primates. Prosthenorchis spp. infestation is influenced by diet with increased risk of exposure from ingesting invertebrate intermediate hosts...
April 28, 2016: Journal of Wildlife Diseases
Papa Kofi Amissah-Reynolds, Isaac Monney, Lucy Mawusi Adowah, Samuel Opoku Agyemang
Dogs are popular pets that live closely with humans. However, this cohabitation allows for the transmission of zoonotic parasites to humans. In Ghana, very little is known about zoonotic parasites in dogs. We examined excrements of 154 dogs for intestinal helminthes using saturated sodium chloride as a floatation medium and further interviewed 100 dog owners regarding knowledge on zoonosis and pet management practices. Thirteen parasite species were identified, with an overall prevalence of 52.6%. Nematodes were more common than cestodes, with Toxocara canis being the most prevalent helminth (18...
2016: Journal of Parasitology Research
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