Perch sweeper fish with scientific name Cobitis taenia is one of the Cobitidae family. Since this kind of fish lives in clean waters and in the high areas of Talar River, it can be an index on water implution. This su...Perch sweeper fish with scientific name Cobitis taenia is one of the Cobitidae family. Since this kind of fish lives in clean waters and in the high areas of Talar River, it can be an index on water implution. This survey on the diet of this specimen is done on two stations （Kaselian and Tajoon） and shallow and high areas of Talar River in Mazandaran （Southern part of Caspian sea） and the duration of this survey is from October 2008 till September 2009. We should mention that fishing was just done by electro-shocker with voltage 300 V. And this fish after fishing is fixation in 10% formalin solution. So 410 perch sweeper fish were examined and the average of relatively length of gut （RLG） was 17.35 cm. The index of vacated intestine （VI） was calculated 43.35% for all samples. From intense of diet points of view （GSI）, the most frequency of full intestines was considered in summer and spring. On the other hand, the smallness of relatively length of gut index （RLG 〈 1） shows that perch sweeper fish＇s diet manner is inclined to herbivority. In the examination of containing of digestive track, overally 10 kinds of foodstuff were known. Based on amount of this index, 2.67% Chironomidae is known as main bait in all sampling period.展开更多
Objective:To differentiate cryptic stage of Echinococcus granulosus(E.granulosus) and Taenia by PCR-RFLP and sequence information of amplicon.Methods:DNA were isolated from metacestodes stage of Taenia and E.granulosu...Objective:To differentiate cryptic stage of Echinococcus granulosus(E.granulosus) and Taenia by PCR-RFLP and sequence information of amplicon.Methods:DNA were isolated from metacestodes stage of Taenia and E.granulosus using DNA isolation kit(Q-BIOgene kit,USA), the amplified and purified DNA product was then cloned and sent for sequencing.The generating sequence information was used for amplicons identification.Results:Out of 112 faecal and environmental samples,16 exhibited positive result.The product size of amplicon positive for E.granulosus was 310 bp;whereas,for Taenia spp.sizes varied from 379 to 388 bp.Restriction pr of ile of actinⅡwith Csp61 also differed Taenia spp.and E.granulosus.Conclusions:The result of the study indicated that,the primers were useful to differentiate cryptic stage of the two genera which is yet to be reported earlier.展开更多
Objective:To assess the efficacy of triclabendazole(TCBZ) in porcine cysticercosis.Methods:Eighteen naturally infected cysticercotic pigs were divided into 3 groups of 6 individuals each.The first group was treated or...Objective:To assess the efficacy of triclabendazole(TCBZ) in porcine cysticercosis.Methods:Eighteen naturally infected cysticercotic pigs were divided into 3 groups of 6 individuals each.The first group was treated orally with TCBZ at a single dose of 30 mg/kg of body weight,the second group was treated orally with oxfendazole at a single dose of 30 mg/kg of body weight and the third group received a placebo(control group).All animals were kept under the same management conditions.The pigs were euthanized 17 wk post-treatment and the number of surviving cysts in muscles was assessed and compared between groups.Results:All pigs treated with oxfendazole had only degenerated cysts in their carcasses.In contrast,TCBZ had very little effect against the parasitic cysts.Cysts from pigs in the TCBZ group looked apparently normal after treatment.However,histological evaluation showed a mild to moderate degree of inflammation.Conclusions:TCBZ is not an efficacious drug against Taenia solium cysticercosis in swine using a single dose.展开更多
The efficacy of oxfendazole(OFZ) on Taenia hydatigena metacestodes, also called Cysticercus tenuicollis(C. tenuicollis), was studied in 648 raising pigs. This study was performed in Tumbes Department in Peru, an endem...The efficacy of oxfendazole(OFZ) on Taenia hydatigena metacestodes, also called Cysticercus tenuicollis(C. tenuicollis), was studied in 648 raising pigs. This study was performed in Tumbes Department in Peru, an endemic area for cysticercosis. Pigs were randomized in two groups; untreated group(n = 142) did not receive any treatment and treated group(n = 506) received OFZ treatment at a single dose of 30 mg/kg body weight.Six months after treatment, the pigs were necropsied. The prevalence of infection by C. tenuicollis among the pigs was 27.5%(39/142) and 2.0%(10/506) in untreated and treated groups, respectively. Untreated group was infested only with viable cysts, whereas treated group had no viable cysts. All the cysts found in treated group presented degeneration, with a thick membrane, and they contained milky fluid and fibrous tissue. A single dose of OFZ was effective against C. tenuicollis, thus providing an alternative drug for controlling this parasite in pigs.展开更多
Taenia spp.are flatworms of the class Cestoda,whose definitive hosts are humans and primates.Human infestation(taeniasis) results from the ingestion of raw meat contaminated with encysted larval tapeworms and is consi...Taenia spp.are flatworms of the class Cestoda,whose definitive hosts are humans and primates.Human infestation(taeniasis) results from the ingestion of raw meat contaminated with encysted larval tapeworms and is considered relatively harmless and mostly asymptomatic.Anemia is not recognized as a possible sign of taeniasis and taeniasis-induced hemorrhage is not described in medical books.Its therapy is based on anthelmintics such praziquantel,niclosamide or albendazole.Here we describe a case of acute ileal bleeding in an Italian man affected with both Taenia spp.infestation resistant to albendazole and Helicobacter pylori-associated duodenal ulcers.展开更多
Infection with tapeworms is a major problem in many parts of the world. Patients may be asymptomatic or have a significant morbidity depending on the species. Infection with Taenia species is sometimes found by expuls...Infection with tapeworms is a major problem in many parts of the world. Patients may be asymptomatic or have a significant morbidity depending on the species. Infection with Taenia species is sometimes found by expulsion of eggs or proglottids in stool. Species specific diagnosis of Taenia is difficult,but possible. We present a case of Taenia saginata incidentally discovered,and risk factors for transmission,diagnosis,symptoms,and treatment.展开更多
[ Objective ] In order to observe the morphological structure of Taenia solium and improve the dyeing method of Taenia solium. [ Method ] Taenia soli- um was stained by hematoxylin-eosin （HE） staining method and obs...[ Objective ] In order to observe the morphological structure of Taenia solium and improve the dyeing method of Taenia solium. [ Method ] Taenia soli- um was stained by hematoxylin-eosin （HE） staining method and observed under microscope. Taenia solium specimens with clear structure and bright color were made. [ Results] Male reproductive system and excretory system of Taenia solium segment could be observed under the optical microscope, structures of uterus and eggs in Taenia solium gravid proglottid could also be observed. [ Conclusion] Aiming at providing a reference for the identification of Taenia solium and the diagnosis of the tapeworm disease.展开更多
For decades, Taenia solium cysticercosis (TSC) has remained an important constraint for public health and economic well being of the predisposed communities. Despite the fact that the disease is easily preventable, hu...For decades, Taenia solium cysticercosis (TSC) has remained an important constraint for public health and economic well being of the predisposed communities. Despite the fact that the disease is easily preventable, humans remain foci for transmission. They harbour the mature form of the parasite (Taenia solium) which may be curable at this stage and also easily prevented from contaminating pig feeds and environment with eggs of the parasite to break the cycle. Researchers, knowledgeable communities and international organisations such as the World Health Organisation work hard to make the disease a history. Nevertheless, persistence of the disease in endemic regions such as sub Saharan Africa is kept on increasing. While TSC in human may serve as a silent killer as it can go unnoticed for years, the immanent social cultural settings and lifestyles of the communities in endemic areas form the main concern on the epidemiology of the disease. Unless lifestyles change in endemic regions, front line research might rarely find its way into applications in an area of huge societal and economic impact, the TSC epidemiology. Sincerely, transmission of TSC is favoured by poor sanitation and hygiene which is motivated by lifestyle and poverty. What is perhaps missing is the knowledge on “why is the communities involved ease indiscriminately while almost every member of the community in endemic areas knows that indiscriminate defecation may harm their health? What social drivers are behind this motive (bush defecation)? How best can the disease be controlled and monitored? This review recommends for developing and implementing an interdisciplinary OneHealth community-based control mechanism and monitoring (surveillance) programme as standpoints towards eliminating TSC in sub-Saharan Africa and the rest endemic regions.展开更多
<strong>Background:</strong> Small bowel obstruction (SBO) is a common gastrointestinal condition often warranting acute surgical intervention. In human, tapeworm species can cause a parasitic infection by...<strong>Background:</strong> Small bowel obstruction (SBO) is a common gastrointestinal condition often warranting acute surgical intervention. In human, tapeworm species can cause a parasitic infection by ingestion of raw or under cooked beef (<em>T. saginata</em>) or pork (<em>T. solium</em> and <em>T. asiatica</em>). Taeniasis usually presents with vague symptoms or mild abdominal pain and discomfort. The intestinal complications are not commonly mentioned in the literatures.<strong> Case presentation:</strong> We present 65-year-old Egyptian woman who lives in Oman, who is known to have type two diabetes mellitus and hypertension. She presented to Emergency department with abdominal pain and constipation for a period of three days. On examination, she was dehydrated with tachycardia (pulse rate: 110/minute) blood pressure of 100/60 mmHg and patient was afebrile. Abdominal examination revealed, mildly distended abdomen and tense, no guarding or rigidity no palpable mass, exaggerated bowel sound and rectum is empty on per rectal examination. Emergency laparotomy was performed with intra-operative findings of large foreign body impacted in the distal jejunum about 8 × 3 cm, cylinder in shape completely obliterating the lumen, distal loops was collapsed. <strong>Conclusion: </strong>Although Taeniasis is a very rare infection, index of suspicion such as a potential in the differential diagnosis as cause of an acute abdomen with unusual surgical complications should be considered. The diagnosis of these rare circumstances is usually made intraoperatively, and surgery is recommended only for the treatment of complications.展开更多
文摘Perch sweeper fish with scientific name Cobitis taenia is one of the Cobitidae family. Since this kind of fish lives in clean waters and in the high areas of Talar River, it can be an index on water implution. This survey on the diet of this specimen is done on two stations （Kaselian and Tajoon） and shallow and high areas of Talar River in Mazandaran （Southern part of Caspian sea） and the duration of this survey is from October 2008 till September 2009. We should mention that fishing was just done by electro-shocker with voltage 300 V. And this fish after fishing is fixation in 10% formalin solution. So 410 perch sweeper fish were examined and the average of relatively length of gut （RLG） was 17.35 cm. The index of vacated intestine （VI） was calculated 43.35% for all samples. From intense of diet points of view （GSI）, the most frequency of full intestines was considered in summer and spring. On the other hand, the smallness of relatively length of gut index （RLG 〈 1） shows that perch sweeper fish＇s diet manner is inclined to herbivority. In the examination of containing of digestive track, overally 10 kinds of foodstuff were known. Based on amount of this index, 2.67% Chironomidae is known as main bait in all sampling period.
文摘Objective:To differentiate cryptic stage of Echinococcus granulosus(E.granulosus) and Taenia by PCR-RFLP and sequence information of amplicon.Methods:DNA were isolated from metacestodes stage of Taenia and E.granulosus using DNA isolation kit(Q-BIOgene kit,USA), the amplified and purified DNA product was then cloned and sent for sequencing.The generating sequence information was used for amplicons identification.Results:Out of 112 faecal and environmental samples,16 exhibited positive result.The product size of amplicon positive for E.granulosus was 310 bp;whereas,for Taenia spp.sizes varied from 379 to 388 bp.Restriction pr of ile of actinⅡwith Csp61 also differed Taenia spp.and E.granulosus.Conclusions:The result of the study indicated that,the primers were useful to differentiate cryptic stage of the two genera which is yet to be reported earlier.
基金Partial support from the Fogarty International Center/NIH(training grants D43 TW008273-03 and D43 TW001140) is acknowledgedsupported by the Fogarty International Center/NIH(D43 TW008273-03)supported by a Wellcome Trust Senior International Research Fellowship in Public Health and Tropical Medicine
文摘Objective:To assess the efficacy of triclabendazole(TCBZ) in porcine cysticercosis.Methods:Eighteen naturally infected cysticercotic pigs were divided into 3 groups of 6 individuals each.The first group was treated orally with TCBZ at a single dose of 30 mg/kg of body weight,the second group was treated orally with oxfendazole at a single dose of 30 mg/kg of body weight and the third group received a placebo(control group).All animals were kept under the same management conditions.The pigs were euthanized 17 wk post-treatment and the number of surviving cysts in muscles was assessed and compared between groups.Results:All pigs treated with oxfendazole had only degenerated cysts in their carcasses.In contrast,TCBZ had very little effect against the parasitic cysts.Cysts from pigs in the TCBZ group looked apparently normal after treatment.However,histological evaluation showed a mild to moderate degree of inflammation.Conclusions:TCBZ is not an efficacious drug against Taenia solium cysticercosis in swine using a single dose.
基金Partly supported by Fogarty International Center/NIH(training grants D43 TW008273-03 and D43 TW001140)Fogarty International Center/NIH(D43 TW008273-03)
文摘The efficacy of oxfendazole(OFZ) on Taenia hydatigena metacestodes, also called Cysticercus tenuicollis(C. tenuicollis), was studied in 648 raising pigs. This study was performed in Tumbes Department in Peru, an endemic area for cysticercosis. Pigs were randomized in two groups; untreated group(n = 142) did not receive any treatment and treated group(n = 506) received OFZ treatment at a single dose of 30 mg/kg body weight.Six months after treatment, the pigs were necropsied. The prevalence of infection by C. tenuicollis among the pigs was 27.5%(39/142) and 2.0%(10/506) in untreated and treated groups, respectively. Untreated group was infested only with viable cysts, whereas treated group had no viable cysts. All the cysts found in treated group presented degeneration, with a thick membrane, and they contained milky fluid and fibrous tissue. A single dose of OFZ was effective against C. tenuicollis, thus providing an alternative drug for controlling this parasite in pigs.
文摘Taenia spp.are flatworms of the class Cestoda,whose definitive hosts are humans and primates.Human infestation(taeniasis) results from the ingestion of raw meat contaminated with encysted larval tapeworms and is considered relatively harmless and mostly asymptomatic.Anemia is not recognized as a possible sign of taeniasis and taeniasis-induced hemorrhage is not described in medical books.Its therapy is based on anthelmintics such praziquantel,niclosamide or albendazole.Here we describe a case of acute ileal bleeding in an Italian man affected with both Taenia spp.infestation resistant to albendazole and Helicobacter pylori-associated duodenal ulcers.
文摘Infection with tapeworms is a major problem in many parts of the world. Patients may be asymptomatic or have a significant morbidity depending on the species. Infection with Taenia species is sometimes found by expulsion of eggs or proglottids in stool. Species specific diagnosis of Taenia is difficult,but possible. We present a case of Taenia saginata incidentally discovered,and risk factors for transmission,diagnosis,symptoms,and treatment.
文摘[ Objective ] In order to observe the morphological structure of Taenia solium and improve the dyeing method of Taenia solium. [ Method ] Taenia soli- um was stained by hematoxylin-eosin （HE） staining method and observed under microscope. Taenia solium specimens with clear structure and bright color were made. [ Results] Male reproductive system and excretory system of Taenia solium segment could be observed under the optical microscope, structures of uterus and eggs in Taenia solium gravid proglottid could also be observed. [ Conclusion] Aiming at providing a reference for the identification of Taenia solium and the diagnosis of the tapeworm disease.
文摘For decades, Taenia solium cysticercosis (TSC) has remained an important constraint for public health and economic well being of the predisposed communities. Despite the fact that the disease is easily preventable, humans remain foci for transmission. They harbour the mature form of the parasite (Taenia solium) which may be curable at this stage and also easily prevented from contaminating pig feeds and environment with eggs of the parasite to break the cycle. Researchers, knowledgeable communities and international organisations such as the World Health Organisation work hard to make the disease a history. Nevertheless, persistence of the disease in endemic regions such as sub Saharan Africa is kept on increasing. While TSC in human may serve as a silent killer as it can go unnoticed for years, the immanent social cultural settings and lifestyles of the communities in endemic areas form the main concern on the epidemiology of the disease. Unless lifestyles change in endemic regions, front line research might rarely find its way into applications in an area of huge societal and economic impact, the TSC epidemiology. Sincerely, transmission of TSC is favoured by poor sanitation and hygiene which is motivated by lifestyle and poverty. What is perhaps missing is the knowledge on “why is the communities involved ease indiscriminately while almost every member of the community in endemic areas knows that indiscriminate defecation may harm their health? What social drivers are behind this motive (bush defecation)? How best can the disease be controlled and monitored? This review recommends for developing and implementing an interdisciplinary OneHealth community-based control mechanism and monitoring (surveillance) programme as standpoints towards eliminating TSC in sub-Saharan Africa and the rest endemic regions.
文摘<strong>Background:</strong> Small bowel obstruction (SBO) is a common gastrointestinal condition often warranting acute surgical intervention. In human, tapeworm species can cause a parasitic infection by ingestion of raw or under cooked beef (<em>T. saginata</em>) or pork (<em>T. solium</em> and <em>T. asiatica</em>). Taeniasis usually presents with vague symptoms or mild abdominal pain and discomfort. The intestinal complications are not commonly mentioned in the literatures.<strong> Case presentation:</strong> We present 65-year-old Egyptian woman who lives in Oman, who is known to have type two diabetes mellitus and hypertension. She presented to Emergency department with abdominal pain and constipation for a period of three days. On examination, she was dehydrated with tachycardia (pulse rate: 110/minute) blood pressure of 100/60 mmHg and patient was afebrile. Abdominal examination revealed, mildly distended abdomen and tense, no guarding or rigidity no palpable mass, exaggerated bowel sound and rectum is empty on per rectal examination. Emergency laparotomy was performed with intra-operative findings of large foreign body impacted in the distal jejunum about 8 × 3 cm, cylinder in shape completely obliterating the lumen, distal loops was collapsed. <strong>Conclusion: </strong>Although Taeniasis is a very rare infection, index of suspicion such as a potential in the differential diagnosis as cause of an acute abdomen with unusual surgical complications should be considered. The diagnosis of these rare circumstances is usually made intraoperatively, and surgery is recommended only for the treatment of complications.
