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Artículos de revistas sobre el tema "Scolex"

Autor: Grafiati

Publicado: 7 de junio de 2025

Última modificación: 2 de agosto de 2025

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1

Caira, J. N., and T. R. Ruhnke. "A comparison of scolex morphology between the plerocercoid and the adult of Calliobothrium verticillatum (Tetraphyllidea: Onchobothriidae)." Canadian Journal of Zoology 69, no. 6 (1991): 1484–88. http://dx.doi.org/10.1139/z91-207.

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The morphological changes associated with the ontogenetic transformation of the scolex from larva to adult were investigated in the tapeworm Calliobothrium verticillatum (Rudolphi, 1819) van Beneden, 1850 by comparing the morphology of plerocercoids collected from the hermit crab Pagurus pollicaris Say, 1817 with that of adult worms collected from the shark Mustelus canis (Mitchell, 1815), using scanning electron microscopy. The apex of the scolex in young plerocercoids bore a conspicuous sucker. Each bothridium was flat and divided into four regions: an anterior oval region with two marginal

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2

Ito, A., and K. Onitake. "Changes in surface antigens of Hymenolepis nana during differentiation and maturation in mice." Journal of Helminthology 61, no. 2 (1987): 129–36. http://dx.doi.org/10.1017/s0022149x00009871.

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ABSTRACTThe surface antigens of oncosphere, cysticercoid, adult scolex and adult strobila (other than scolex) of Hymenolepis nana differ critically from one another. When the oncosphere of H. nana undergoes differentiation and development into the mature tapeworm, the infected mouse first produces anti-oncosphere antibody, followed by anti-cysticercoid, anti-adult scolex and finally anti-strobila (other than scolex region) antibodies of IgG, IgM and IgA isotypes as detected by indirect immunofluorescent antibody test. The parasite changed its surface antigens throughout its differentiation and

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3

MacKinnon, Barbara M., and Michael D. B. Burt. "Histological and ultrastructural observations on the secondary scolex and strobila of Haplobothrium globuliforme (Cestoda: Haplobothrioidea)." Canadian Journal of Zoology 63, no. 8 (1985): 1995–2000. http://dx.doi.org/10.1139/z85-293.

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The strobila attached to the primary scolex of Haplobothrium globuliforme fragments to produce numerous secondary scolices. These secondary scolices develop mature and gravid proglottides. The secondary scolex consists of four shallow disclike bothria which surround a raised apical area. The tegument bears small microtriches, 0.6 μm long, and the tegumental cytoplasm is filled with electron-dense discs and mitochondria. Ducts filled with electron-dense secretory bodies were seen in the scolex and occasionally were seen to fuse with the tegument. The tegument of the neck region is similar to th

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4

Hoberg, Eric P. "Trigonocotyle sexitesticulae sp.nov. (Eucestoda: Tetrabothriidae): a parasite of pygmy killer whales (Feresa attenuata)." Canadian Journal of Zoology 68, no. 9 (1990): 1835–38. http://dx.doi.org/10.1139/z90-263.

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Trigonocotyle sexitesticulae sp.nov. is described from specimens collected from pygmy killer whales (Feresa attenuata) in Florida. This species is differentiated from other Trigonocotyle species by the minute overall dimensions of the scolex (372–523 μm wide), strobila (maximum 13.7 mm long in a pregravid specimen), and cirrus sac (40–54 μm in length), an unusual number of testes (6), and the configuration of the scolex and genital atrium. Among other species of Trigonocotyle the dimensions of the scolex, strobila, and cirrus sac far exceed those of T. sexitesticulae, and there are typically &

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5

Pugine, Silvana Marina Piccoli, Michelle Fernandes de Faria, Antônio Augusto Mendes Maia, et al. "Effect of Cysticercus cellulosae fractions on the respiratory burst of pig neutrophils." Revista do Instituto de Medicina Tropical de São Paulo 47, no. 2 (2005): 91–94. http://dx.doi.org/10.1590/s0036-46652005000200006.

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Neutrophils, eosinophils and macrophages are cells that interact with invading parasites and naive hosts have been shown to have anti-parasitic activity. The initial reaction of these leukocytes is the generation of reactive oxygen species (ROS) to play in parasite expulsion. The present work was carried out to study the effect of total extract, scolex and membrane fractions from Cysticercus cellulosae on respiratory burst by pig neutrophils. Hydrogen peroxide (H2O2) production by neutrophils incubated with metacestode fractions from C. cellulosae showed an increase of: 190% (total extract), 1

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6

Caira, J. N., K. Jensen, A. Waeschenbach, and D. T. J. Littlewood. "An enigmatic new tapeworm, Litobothrium aenigmaticum, sp. nov. (Platyhelminthes : Cestoda : Litobothriidea), from the pelagic thresher shark with comments on development of known Litobothrium species." Invertebrate Systematics 28, no. 3 (2014): 231. http://dx.doi.org/10.1071/is13047.

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An enigmatic new tapeworm is described from pelagic thresher sharks in México and Taiwan. While lsrRNA (D1-D3) data robustly place it in the Litobothriidea, it bears essentially no morphological resemblance to other members of the order. Instead it superficially resembles the freshwater fish-inhabiting Caryophyllidea. Its scolex consists of a simple dome-shaped scolex proper and an extensive cephalic peduncle housing four distinct tissue types. It is hyperapolytic, thus reproductive anatomy is unknown. Developmental data show typical litobothriideans bear basic elements of their adult scolex u

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7

CIELOCHA, JOANNA J., and KIRSTEN JENSEN. "Stoibocephalum n. gen. (Cestoda: Lecanicephalidea) from the sharkray, Rhina ancylostoma Bloch & Schneider (Elasmobranchii: Rhinopristiformes), from northern Australia." Zootaxa 3626, no. 4 (2013): 558–68. http://dx.doi.org/10.11646/zootaxa.3626.4.9.

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A new genus and species of lecanicephalidean cestode, Stoibocephalum arafurense n. gen., n. sp., is described from the sharkray, Rhina ancylostoma Bloch & Schneider, off northern Australia. Stoibocephalum arafurense n. gen., n. sp. Is apolytic, and possesses a large, muscular, retractable apical organ, 3 pairs of excretory vessels, and testes in several columns and layers. The presence of 3 pairs of excretory vessels distinguishes this new genus from all other valid lecanicephalidean genera, except Hexacanalis Perrenoud, 1931, from which it can be distinguished based on ovary shape and egg

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8

Abdou, N., R. A. Heckmann, J. S. Gardner, and A. A. Ashour. "Microscopic study of the plerocercoid larva of Otobothrium (Trypanorhyncha)." Proceedings, annual meeting, Electron Microscopy Society of America 53 (August 13, 1995): 1026–27. http://dx.doi.org/10.1017/s0424820100141500.

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This study represents the first scanning electron microscope (SEM) evaluation of cestode larvae infecting Red Sea fish. General structures of the larvae and different types of microtriches on the integument are described.Plerocercoids of Trypanorhyncha were collected from the mesenteries and liver of Cephalopholis oligostricta. The capsule of each larva was opened, the plerocercoid was removed and fixed in 10% formalin. Following buffer (pH. 7.3) wash, they were fixed in OSO4 12 hr, washed in buffer, immersed in 2% tannic acid 8 hr, washed in buffer, fixed again in OSO4 2 hr, buffer washed, de

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9

Uhrovič, Dalibor, Mikuláš Oros, Olena Kudlai, Roman Kuchta, and Tomáš Scholz. "Archigetes Leuckart, 1878 (Cestoda, Caryophyllidea): diversity of enigmatic fish tapeworms with monoxenic life cycles." Parasite 29 (2022): 6. http://dx.doi.org/10.1051/parasite/2022002.

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The caryophyllidean genus Archigetes Leuckart, 1878 is unique among all tapeworms in that its species can mature in invertebrate hosts (Oligochaeta), i.e., have a monoxenic (direct) life cycle. All five species were described as progenetic plerocercoids in oligochaetes and two of them also as adults from cypriniform fishes. Two species, A. sieboldi Leuckart, 1878 and A. iowensis Calentine, 1962, were found in North America in non-native common carp (Cyprinus carpio). A molecular study of caryophyllideans from the southern United States has revealed the occurrence of three new species in native

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10

R.S., Madle, Pathan D.M., and Bhure Dhanraj Balbhim. "Morphotaxonomic Observation of a New Species of the Genus Marsipometra from Carcharhinus laticaudus." INTERNATIONAL JOURNAL OF BIOLOGICAL AND ENVIRONMENTAL INVESTIGATIONS 02, no. 01 (2022): 19–21. http://dx.doi.org/10.33745/ijbei.2022.v02i01.002.

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Present investigation deals with a new cestode Marsipometra jadhavae Sp.Nov. from Carcharhinus laticaudus at Bhatye, Kalambadevi,Harne, Mirya, Ratnagiri, West Coast of Maharashtra, India. The parasites collected in this study possessed scolex pyramidal, arrow shaped, apical disk narrower than base of scolex, suckers oval to rounded in shape, arranged in two groups, neck absent, Mature proglottids longer than broad, Testes oval, large, 4 in number, cirrus pouch oval, elongated, the vas deference short, genital pore marginal, vagina posterior to the cirrus pouch, ovary bilobed and granular vitel

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11

Hanzelová, Vladimíra, Viliam nábel, Ivica Král'ová, Tomá Scholz, and Stefano D'Amelio. "Genetic and morphological variability in cestodes of the genus Proteocephalus: geographical variation in Proteocephalus percae populations." Canadian Journal of Zoology 77, no. 9 (1999): 1450–58. http://dx.doi.org/10.1139/z99-098.

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Genetic and morphological variability was studied in the tapeworm Proteocephalus percae (Müller, 1780) (Cestoda: Proteocephalidae), a parasite of perch (Perca fluviatilis L.). Geographic variation in isoenzyme patterns, random amplified polymorphic DNA (RAPD) profiles, and morphological characters were found within six natural populations of P. percae from Slovakia and Switzerland. All approaches used showed that similarity was substantially higher among Swiss populations than among Slovak populations. Proteocephalus percae specimens from the Dobiná water reservoir (Slovakia) differed signifi

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12

Mondragón-Martínez, Aarón, Rosa Martínez-Rojas, Enrique Garcia-Candela, Abraham Delgado-Escalante, Manuel Tantaleán-Vidaurre, and Lidia Cruz-Neyra. "Molecular Identification of Adenocephalus pacificus (Cestoda) from Three Human Cases in Lima Province, Peru." Korean Journal of Parasitology 58, no. 4 (2020): 457–60. http://dx.doi.org/10.3347/kjp.2020.58.4.457.

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The Pacific tapeworm Adenocephalus pacifcus (syn. Diphyllobothrium pacificum) is a causative agent of diphyllobothriosis occurred in Pacific coast of South America, mainly in Peru. Source of infections are traditional meal from raw or undercooked marine fish such as “cebiche”. We confirmed 3 new cases, one including scolex and the other two headless. A strobila 46 cm long without scolex was discharged from an 8-year-old boy before treatment. Specimens were confirmed morphologically by presence of tegumental protuberances on proglottids and small sized eggs. Partial sequence of cytochrome c oxi

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13

Nicholas Jairo Kavana. "The description of adult worm of Spirometra species: A Pseudophyllidean tapeworm." Open Access Research Journal of Biology and Pharmacy 6, no. 1 (2022): 076–80. http://dx.doi.org/10.53022/oarjbp.2022.6.1.0071.

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A complete life-cycle of Spirometra sp. was carried out in the laboratory of Institute of Postgraduate Studies, University of Malaya, Malaysia. The life-cycle started in from the egg to adult stage. The 4 adult worms of Spirometra recovered from experimentally infected cats were used for description after staining the scolex and proglottids with Alum-carmine. The entire strobila measured 15.0-53.5cm long. The scolex was spatulate with two bothria both sides, neck long and mature proglottids had 3 genital pores: cirrus, vaginal and uterine at separate sites. Uterus was located in the middle of

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14

Vázquez-López, C., C. de Armas-Serra, J. Pérez-Serrano, C. Giménez-Pardo, and F. Rodríguez-Caabeiro. "Localization of a 24-kDa collagenase in the Gymnorhynchus gigas plerocercoid." Journal of Helminthology 74, no. 2 (2000): 183–87. http://dx.doi.org/10.1017/s0022149x00000263.

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AbstractA 24-kDa collagenase was localized in the Gymnorhynchus gigas plerocercoid immunohistochemically by peroxidase complex staining using polyclonal antibodies from NMRI mouse sera immunized with purified enzyme. Immunoreactivity was determined at different parts of the body (scolex, vesicle and caudal region) and mainly localized in microtriches and parenchymal tissues of the scolex and vesicle. These results, along with the absence of the enzyme in the plerocercoid excretion–secretion products, suggest that the 24-kDa collagenase is produced by parenchymal cells in the anterior region an

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15

Patil, S. D., and Hemlata S. Chaudhari. "Histopathological studies on intestine of Columba livia Gmellin, 1789 infected with cestode parasites." Environment Conservation Journal 11, no. 1&2 (2010): 71–73. http://dx.doi.org/10.36953/ecj.2010.1214.

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In the present study an attempt has been made to visualize the histopathological changes that are caused to the intestine of avian host Columba livia, Gmellin, 1789 due to infestation of cestode parasite Cotugnia aurangabadensis (Shinde,1969) and Paruterina sp. Histopathological studies have been made to asses the extent of damage caused by the parasites. It includes destruction and extrusion of intestinal villi, inflammatory fibrosis due to cysts. The scolex of Cotugnia aurangabadensis is non-penetrative type while Paruterina sp. is penetrative type. It was found that the extent of damage is

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16

Vázquez-López, C., C. de Armas-Serra, J. Pérez-Serrano, C. Giménez-Pardo, and F. Rodríguez-Caabeiro. "Localization of a 24-kDa collagenase in the Gymnorhynchus gigas plerocercoid." Journal of Helminthology 74, no. 2 (2000): 183–87. http://dx.doi.org/10.1017/s0022149x00700885.

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AbstractA 24-kDa collagenase was localized in the Gymnorhynchus gigas plerocercoid immunohistochemically by peroxidase complex staining using polyclonal antibodies from NMRI mouse sera immunized with purified enzyme. Immunoreactivity was determined at different parts of the body (scolex, vesicle and caudal region) and mainly localized in microtriches and parenchymal tissues of the scolex and vesicle. These results, along with the absence of the enzyme in the plerocercoid excretion–secretion products, suggest that the 24-kDa collagenase is produced by parenchymal cells in the anterior region an

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17

KUCHTA, ROMAN, TOMÁŠ SCHOLZ, ROMANA VLČKOVÁ, et al. "Revision of tapeworms (Cestoda: Bothriocephalidea) from lizardfish (Saurida: Synodontidae) from the Indo-Pacific region." Zootaxa 1977, no. 1 (2009): 55–67. http://dx.doi.org/10.11646/zootaxa.1997.1.5.

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Bothriocephalidean cestodes reported from lizardfish (Saurida Valenciennes in Cuvier & Valenciennes) were revised on the basis of newly collected material from type-hosts and available typeand voucher specimens. Instead of nine taxa of four genera listed in the literature, only Oncodiscus sauridae Yamaguti, 1934 and Penetrocephalus ganapattii (Rao, 1954) are considered valid and thus both genera become monotypic. Both taxa are redescribed, including the first scanning electron micrographs and data on intraspecific variability. Both species are unique among bothriocephalid cestodes in the l

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18

Bhure, Dhanraj Balbhim, Sanjay Shamrao Nanware, Dhanraj Balbhim Bhure, and C. R. Kasar. "Reports on cestode genus Senga (Dollfus, 1934) (Ptychobothridae, Luhe, 1902) of Mastacembelus armatus from Marathwada region Maharashtra, India." Environment Conservation Journal 15, no. 1&2 (2014): 213–19. http://dx.doi.org/10.36953/ecj.2014.151229.

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The present investigation deals with biosystematic studies of Pseudophyllidean tapeworm Senga i.e. S. satarensis, S. madhavae, S. mangalbai and S.microrostellata collected from intestine of a Mastacembelus armatus at various places of Marathwada Region (M.S.) India during the period of May, 2012 to Oct., 2013. The worm of present study come closer to all known species of this genus in general topography of organ but differs due to morphometeric measurements and morphological characteristics. The Senga satarensis (Bhure et.al., 2011) comes closer to known species of the genus Senga Dollfus, 193

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19

MacKinnon, Barbara M., and Michael D. B. Burt. "The comparative ultrastructure of the plerocercoid and adult primary scolex of Haplobothrium globuliforme Cooper, 1914 (Cestoda: Haplobothrioidea)." Canadian Journal of Zoology 63, no. 6 (1985): 1488–96. http://dx.doi.org/10.1139/z85-222.

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Plerocercoids of Haplobothrium globuliforme recovered from the liver of Ictalurus nebulosus and adult cestodes from the intestine of Amia calva were examined using light and electron microscopy. Both plerocercoids and adults have four eversible proboscides on the scolex. Using light microscopy, a lumen is evident in the centre of each proboscis, through which the proboscis retracts during inversion into the muscular sacs contained within the scolex. Each proboscis contains numerous glandular sacs. Staining with Heidenhain's azan indicates that cells in the neck region of the cestode probably p

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20

Amin, Omar M. "The Morphology and Description of Glaridacris catostomi Cooper, 1920 (Cestode: Caryophyllidae) from Catostomid Fishes in Lakes and Rivers of Wisconsin, with Morphological Observations." International Journal of Zoology and Animal Biology 5, no. 5 (2022): 1–9. http://dx.doi.org/10.23880/izab-16000402.

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Thirteen species in 8 genera of caryophyllid cestodes including Glaridacris catostomi Cooper, 1920 were found in Catostomus commersoni (Lacépède), Cyprinus carpio (Raf.), and Erimyzon sucetta (Lacépède) in 2 lakes and 2 streams in SE Wisconsin and/or SW Lake Michigan. The morphology of the Wisconsin populations of G. catostomi is revisited using light microscopy revealing new features of the scolex and reproductive organs. The development of scolex and some reproductive structures were observed in maturing specimens. We describe new specimens and provide a comparative morphometric data with ot

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21

Mansursab, Shaikh Kalim. "Cestode Parasite (Platyhelminthes) of Rodent Rattus rattus (Linnaeus, 1758) from Aurangabad, Maharashtra, India with a Redescription of Hymenolepis diminuta (Rudolphi, 1819)." International Journal of Zoological Investigations 08, no. 01 (2022): 257–61. http://dx.doi.org/10.33745/ijzi.2022.v08i01.029.

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In this study Cestodes collected from a species of rodents of the genera Rattus rattus (Linnaeus, 1758) from Aurangabad district Maharashtra, India are reported. Sixty three specimens of the cestode parasites were collected from 23 infected intestines after examining 110 host house rat (Rattus rattus) at Aurangabad, (MS), India during the period of April, 2005-March, 2007. The present form of cestode parasite is redescribed on the basis of some similar characters with the previously described species Hymenolepis diminuta (Rudolphi, 1819). The characters of present form are similar with Hymenol

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22

Kumar, D., and S. N. S. Gaur. "Comparative evaluation of various immunodiagnostic tests for the diagnosis ofTaenia soliumcysticercosis in pigs, using fractionated antigens." Journal of Helminthology 63, no. 1 (1989): 13–17. http://dx.doi.org/10.1017/s0022149x00008658.

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ABSTRACTThe sensitivity and specificity of double immunodiffusion (DID), indirect haemagglutination test (IHA), immunoelectrophoresis (IEP), counterimmunoelectrophoresis (CIEP) and enzyme-linked immunosorbent assay (ELISA) were evaluated and compared using saline extracted ofTaenia soliumlarval scolex and its Sephadex G-200 fractionated 1st and 2nd peak as antigens. Various immunodiagnostic tests gave different results with different antigens. Highest sensitivity (92·5%) was obtained with ELISA using 1st peak antigen and lowest sensitivity was obtained with DID. However, 88·4% and 84·6% sensit

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23

Bhardwaj, Ankit, Sangeeta Sharma, Amit Arya, Suman Kushwaha, and Monali Chaturvedi. "Isolated myocysticercosis: rare presentation in quadriceps muscle." International Journal of Basic & Clinical Pharmacology 9, no. 2 (2020): 361. http://dx.doi.org/10.18203/2319-2003.ijbcp20200191.

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Myocysticercosis is not a common disorder and in particular quadriceps muscle is rarer. We are reporting this rare case of myocysticercosis involving quadriceps muscle of right thigh with ultrasonographic demonstration of nodular scolex and associated edema with no neurological involvement.

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24

Escobedo, Galileo, Ignacio Camacho-Arroyo, Olivia Tania Hernández-Hernández, Pedro Ostoa-Saloma, Martín García-Varela, and Jorge Morales-Montor. "Progesterone Induces Scolex Evagination of the Human ParasiteTaenia solium: Evolutionary Implications to the Host-Parasite Relationship." Journal of Biomedicine and Biotechnology 2010 (2010): 1–10. http://dx.doi.org/10.1155/2010/591079.

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Taenia soliumcysticercosis is a health problem in underdeveloped and developed countries. Sex hormones are involved in cysticercosis prevalence in female and male pigs. Here, we evaluated the effects of progesterone and its antagonist RU486 on scolex evagination, which is the initial step in the development of the adult worm. Interestingly, progesterone increasedT. soliumscolex evagination and worm growth, in a concentration-independent pattern. Progesterone effects could be mediated by a novelT. soliumprogesterone receptor (TsPR), since RU486 inhibits both scolex evagination and worm developm

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25

ZARAGOZA-TAPIA, FRANCISCO, GRISELDA PULIDO-FLORES, and SCOTT MONKS. "Three new species of Acanthobothrium Blanchard, 1848 (Cestoda:Onchoproteocephalidea) in Stingrays (Dasyatidae) from the Pacific coast in Mexico." Zootaxa 4766, no. 1 (2020): 157–72. http://dx.doi.org/10.11646/zootaxa.4766.1.8.

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Three new species of Acanthobothrium Blanchard, 1848 (Onchoproteocephalidea: Onchobothriidae) are described from Pacific coastal waters of Mexico. Based on four criteria for categorization of species of Acanthobothrium, the three new species belong to Category 2 species, characterized by their total length (< 15 mm), number of proglottids (< 50) and testes (<80), and with asymmetrical ovary. Acanthobothrium ppdeleoni n. sp. from diamond stingray Hypanus dipterurus (Jordan & Gilbert) is differentiated from congeners by a combination of characters including total length of the whole

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Han, Xiu-Min, Xue-Yong Zhang, Ying-Na Jian, and Qing-Shan Tian. "Taenia saginata Infection Misdiagnosed as Acute Cholecystitis in a Tibetan Patient, in China." Korean Journal of Parasitology 59, no. 3 (2021): 311–17. http://dx.doi.org/10.3347/kjp.2021.59.3.311.

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The present study reports a rare case of Taenia saginata infection, which was initially diagnosed as acute cholecystitis in a Tibetan patient at the Qinghai-Tibetan Plateau pastoral area, China. A 45-year-old female was initially diagnosed with acute cholecystitis at a hospital in China. She had a slight fever, weight loss and constipation and complained of pain in the upper abdomen and left back areas. Increase of monocyte, eosinophil and basophil levels were shown. Taenia sp. eggs were detected in a fecal examination. An adult tapeworm approximately 146 cm in length, whitish-yellow color, wa

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Hayunga, Eugene G., and John S. Mackiewicz. "Comparative histology of the scolex and neck region of Glaridacris laruei (Lamont, 1921) Hunter, 1927 and Glaridacris catostomi Cooper, 1920 (Cestoidea: Caryophyllidea)." Canadian Journal of Zoology 66, no. 4 (1988): 790–803. http://dx.doi.org/10.1139/z88-118.

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The histology of the scolex and neck region was examined in adults of the caryophyllidean tapeworms Glaridacris laruei and Glaridacris catostomi, parasites of the white sucker, Catostomus commersoni (Lacépède). Several distinct cell types were identified in the parenchyma including tegumental cells, flame cells, longitudinal muscle cells (myoblasts), transverse and dorsoventral muscle cells, parenchyma cells, epithelioid cells, and cells associated with the calcareous corpuscles. The proliferative zone of germinative cells reported for strobilate tapeworms was not found in these species. Faser

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Rees, F. Gwendolen. "The muscle, nervous and excretory systems of the plerocercoid of Callitetrarhynchus gracilis (Rud., 1819) (Pintner 1931) (Cestoda: Trypanorhyncha) from Bermuda fishes." Parasitology 96, no. 2 (1988): 337–51. http://dx.doi.org/10.1017/s0031182000058339.

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SummaryThe plerocercoid of Callitetrarhynchus gracilis was found in the body cavity of 14 species of fishes from Bermuda. The scolex, having completed its development, continues to grow within the blastocyst. The two mobile bothridia possess lateral grooves containing backwardly directed spines. Rapid evagination of the proboscides is effected by two layers of contra-rotating spiral muscles in the walls of the proboscis bulbs. The proboscis retractor is protected from constriction, during contraction of the bulbs, by a rigid ring at the junction of bulb and sheath. Nine series of extrinsic mus

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29

Jadhav, Sham Sampatrao, and Ashok Devidasrao Lakhe. "A new tapeworm Stilesia jadhavae sp.nov.from the intestine of goat Capra hircus at Patoda tehsil of Beed district, MS, India." World Journal of Advanced Research and Reviews 7, no. 1 (2020): 222–26. https://doi.org/10.5281/zenodo.4316957.

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The present communication deals with the description of a new cestode <em>Stilesia jadhavae</em> sp.nov. from the intestine of goat <em>Capra hircus</em> at Patoda tehsil of Beed district. The examined parasites were long with scolex, immature, mature and gravid proglottids. The scolex of the worm is large, quadrangular, broad anteriorly, narrow posteriorly, distinctly marked off from the strobila; suckers are four, large in size, oval in shape, arranged in two pairs; neck short; mature segments small in size, broader than long having only one set of reproductive organs in

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Nascimento, E., P. M. P. Nogueira, and C. A. P. Tavares. "Improved immunodiagnosis of human cysticercosis with scolex protein antigens." Parasitology Research 73, no. 5 (1987): 446–50. http://dx.doi.org/10.1007/bf00538203.

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Mutti, Leonardo Damian, and Verónica A. Ivanov. "Ultrastructure of the scolex of Orygmatobothrium schmittii (Cestoda: Phyllobothriidea)." Journal of Morphology 280, no. 4 (2019): 494–507. http://dx.doi.org/10.1002/jmor.20959.

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32

GULOV, M. K., A. I. DZHABOROV, S. M. ABDULLOEV, A. S. ASHUROV, and S. G. ALI-ZADE. "CLINICAL AND MORPHOLOGICAL EVIDENCE OF THE EFFECTIVENESS OF HYDROGEN PEROXIDE (PERHYDROL) APPLICATION FOR THE RECURRENCE PREVENTION AFTER HYDATID CYSTECTOMY FOR HEPATIC ECHINOCOCCOSIS." AVICENNA BULLETIN 23, no. 4 (2021): 542–52. http://dx.doi.org/10.25005/2074-0581-2021-23-4-542-552.

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Objective: Experimental and histological justification of the use of perhydrol to treat the residual cavity (RC) and recurrence prevention after hydatid cystectomy for hepatic echinococcosis (HE) Methods: The results of surgical treatment of 85 patients with HE were evaluated between 2010 and 2019. In all patients after hydatid cystectomy, RCs were treated with 33% perhydrol. The scolicidal activity of 33% perhydrol was tested in vitro when the latter acted on protoscoleces obtained during the operation. In addition, a histological examination of the fibrous capsule (FC) was performed before a

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33

SHOSTAK, A. W., J. G. WALSH, and Y. C. WONG. "Manipulation of host food availability and use of multiple exposures to assess the crowding effect onHymenolepis diminutainTribolium confusum." Parasitology 135, no. 8 (2008): 1019–33. http://dx.doi.org/10.1017/s0031182008004459.

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SUMMARYWe studied the ‘crowding effect’ inTribolium confusuminfected withHymenolepis diminuta. Manipulations included age and number of parasites, and diet, sex, age and number of exposures of hosts. Volume per parasite was unaffected until an intensity of at least 5–10 parasites per host, then declined approximately inversely as intensities increased. Parasite size was affected by host sex but not age or reproductive status. Host diet affected parasite size and the impact of crowding. Daily gain in parasite volume peaked partway through the developmental period and preceded the first evidence

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34

Rodríguez-Ibarra, Erick, Juan Violante-González, and Scott Monks. "Two new species of Acanthobothrium Blanchard, 1848 (Cestoda, Onchoproteocephalidea) from Urobatis jamaicensis (Cuvier, 1816) (Elasmobranchii, Batoidea, Myliobatiformes) of the Mexican Caribbean." ZooKeys 1169 (July 13, 2023): 175–201. http://dx.doi.org/10.3897/zookeys.1169.101968.

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Eight specimens of Urobatis jamaicensis were collected from four localities of the Yucatan Peninsula, Mexico, of which four specimens were infected with cestodes of two new species of Acanthobothrium. Acanthobothrium garciaprietoisp. nov. differs from congeners by a combination of characters including the size of the scolex and bothridia, length of the cephalic peduncle, length of the axial and abaxial prongs and total length of the abaxial prongs of the hooks, size of the cirrus sac and testes in mature proglottids, and the total number of proglottids. The most prominent characteristic distin

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35

QUADROS, ALEX L. "Two new American species of Aberrapex (Eucestoda: Lecanicephalidea: Aberrapecidae) from myliobatid stingrays (Batoidea: Myliobatidae)." Zootaxa 5448, no. 1 (2024): 85–101. http://dx.doi.org/10.11646/zootaxa.5448.1.5.

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Here I describe Aberrapex panamensis sp. nov., a parasite of the rough eagle ray Aetomylaeus asperrimus from the eastern Pacific coast of Panama, and Aberrapex catarinensis sp. nov., found in Myliobatis goodei off southern coast of Santa Catarina, Brazil. Aberrapex panamensis sp. nov. is the second record of Aberrapex Jensen, 2001 for the eastern Pacific Ocean and A. catarinensis sp. nov. is the fifth species of the genus registered in southwestern Atlantic Ocean. The two new species are morphologically distinct from all their congeners. Aberrapex panamensis sp. nov. and A. catarinensis sp. no

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Ma, Van K., Lourdemillard Bellevue, and Maria Espiritu Fuller. "Is that a scolex? a case of clinically isolated syndrome." International Journal of Contemporary Pediatrics 6, no. 6 (2019): 2697. http://dx.doi.org/10.18203/2349-3291.ijcp20194757.

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Clinically Isolated Syndrome is an initial demyelinating event of the central nervous system that has been associated with the future development of multiple sclerosis. Diagnostic studies include clinical and paraclinical studies. Patients with lesions on MRI of the brain at baseline will more likely develop multiple sclerosis compared to patients without findings. We report a case of a 10-year-old female of Colombian ancestry and origin, who presented with indiscernible neurological clinical signs and symptoms, with MRI brain with and without contrast showing demyelinating lesions with one le

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Al-Kallak, Sindus, and Zuhair Rahemo. "Histochemical study of carbohydrates in clove scolex of Khawia grypi." JOURNAL OF EDUCATION AND SCIENCE 18, no. 4 (2006): 14–31. http://dx.doi.org/10.33899/edusj.2006.77338.

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Rego, Amilcar Arandas. "Scolex Morphology of Proteocephalid Cestodes Parasites of Neotropical Freshwater Fishes." Memórias do Instituto Oswaldo Cruz 94, no. 1 (1999): 37–52. http://dx.doi.org/10.1590/s0074-02761999000100011.

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39

Fiorenza, Maudika Pamela, Afiyah Rahmadani, Arimbi Arimbi, Endang Suprihati, Nunuk Dyah Retno Lastuti, and Sunaryo Hadi Warsito. "Ultrastructural Morphology Comparison of Raillietina echinobothrida and Raillietina tetragona In Native Chickens at Sidoarjo Regency Using Scanning Electron Microscope (SEM)." Journal of Parasite Science 6, no. 2 (2022): 54–59. http://dx.doi.org/10.20473/jops.v6i2.34275.

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This study aimed to compare the ultrastructural morphology of Raillietina echinobothrida and Raillietina tetragona that infected the small intestine of native chickens (Gallus domesticus) obtained from various traditional markets in Sidoarjo Regency. The samples used in this research were 57 small intestines of native chickens (Gallus domesticus) sold at Tulangan, Wonoayu, Larangan, Krian, and Suko Market. The samples were macroscopic and microscopically examined using Scanning Electron Microscope (SEM). The result showed that Raillietina echinobothrida with prevalence of 57.89% has a yellowis

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40

Sukhdeo, M. V. K., and M. S. Kerr. "Behavioural adaptation of the tapewormHymenolepis diminutato its environment." Parasitology 104, no. 2 (1992): 331–36. http://dx.doi.org/10.1017/s0031182000061783.

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SUMMARYHymenolepis diminutamigrates up the small intestine in response to feeding the host 1 g of glucose. Locomotion during migration may result from fixed patterns of retrograde peristaltic-like waves in the strobila of the tapeworm which propel the organism against the normal expulsive forces in the small intestine. The peristaltic-like locomotory waves occur in a gradient along the strobila with a frequency of 24·9±0·9 cycles/min in the anterior segments of the worm, decreasing linearly to 6·6±1·4 cycles/min in the posterior segments of the worm. Chemical signals, isolated from the small i

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41

Rodríguez-Ibarra, Erick, Juan Violante-González, and Scott Monks. "Two new species of Acanthobothrium Blanchard, 1848 (Cestoda, Onchoproteocephalidea) from Urobatis jamaicensis (Cuvier, 1816) (Elasmobranchii, Batoidea, Myliobatiformes) of the Mexican Caribbean." ZooKeys 1169 (July 13, 2023): 175–201. https://doi.org/10.3897/zookeys.1169.101968.

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Eight specimens of Urobatis jamaicensis were collected from four localities of the Yucatan Peninsula, Mexico, of which four specimens were infected with cestodes of two new species of Acanthobothrium. Acanthobothrium garciaprietoi sp. nov. differs from congeners by a combination of characters including the size of the scolex and bothridia, length of the cephalic peduncle, length of the axial and abaxial prongs and total length of the abaxial prongs of the hooks, size of the cirrus sac and testes in mature proglottids, and the total number of proglottids. The most prominent characteristic disti

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42

Pospekhova, N. A. "Ультраструктура тегумента метацестоды Branchiopodataenia pacifica (Spassky & Jurpalova, 1968) Bondarenko & Kontrimavichus, 2004 после эксцистирования". Bulletin of the North-East Science Center, № 3 (30 вересня 2022): 93–100. http://dx.doi.org/10.34078/1814-0998-2022-3-93-100.

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The first data on the tegument ultrastructure of the Branchiopodataenia pacifica metacestodes after the destruction of the outer non-cellular envelope (exocyst) are presented. The tegument of the larval and definitive parts secretes different morphological types of material: vesicles are characteristic of the cyst, irregularly shaped dense granules are released at the base of the tail appendage, and secretory drops with granular material and vesicles are characteristic of the scolex.

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43

Wankhede, Hemlata, and Yogesh Reddy. "On a new species of the genus Senga (Dollfus, 1934) (Cestode: Ptycobothridae, Luhe, 1902) from fresh water fish Mastacembelus armatus." Environment Conservation Journal 10, no. 3 (2009): 63–66. http://dx.doi.org/10.36953/ecj.2009.100312.

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The present paper deals with a new species of the genus Senga (Dollfus, 1934) from freshwater fish Mastacembelus armatus (L.) Kaigaon toka, Dist Aurangabad (M.S) India, in the month of March 2007. It differs from all the earlier reported species in having scolex triangular, anterior end pointed, rounded and posterior end broad., hooks 36 in number, mature segment broader than longer, test 285-295 in number, cirrus pouch pre-ovarian, obliquely placed.

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44

Soliman, Soliman M., Nesreen H. Aljahdali, Kamlah Ali Majrashi, et al. "Immune Cell Reaction Associated with Coenurus cerebralis Infection in Sheep with Particular Reference to ELISA as a Diagnostic Tool." Life 12, no. 10 (2022): 1515. http://dx.doi.org/10.3390/life12101515.

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Sturdy is a disease caused by Coenurus cerebralis (C. cerebralis) that typically affects the brain and spinal cord of sheep. So, this study aimed to detect the pathological, hematological and immunological changes caused by C. cerebralis in sheep. On examination, a total of 17 sheep out of 30 sheep (56.7%) from various regions in Egypt were found infected with C. cerebralis from May to August 2019. Each cyst was extracted from the sheep brain; in addition, tissue specimens were taken from the brain tissues for histopathological examination. The hematological profile was analyzed. Enzyme-Linked

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45

M Amin, Omar. "Revisiting Isoglaridacris hexacotyle (Linton, 1897) Mackiewicz, 1968 (Cestoda: Caryophyllidae) from Catostomid Fishes in Rivers of Arizona." International Journal of Zoology and Animal Biology 5, no. 4 (2022): 1–9. http://dx.doi.org/10.23880/izab-16000392.

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Isoglaridacris hexacotyle (Linton, 1897) Mackiewicz, 1968 was found in Catostomus insignis Baird & Girard and Catostomus clarkii Baird & Girard from 3 streams in Arizona. The morphology of I. hexacotyle is revisited using light microscopy revealing new features. Emphasis is placed on the morphological variability of its scolex. The re-examination of 100 more specimens from the Gila River provided an opportunity to revise the taxonomy of the species and correct and update some old statements and concepts by other observers.

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Świderski, Z. "Postembryonic development of tapeworms — source of novel phylogenetic characters for analysis of cestode evolution: comparative TEM studies." Helminthologia 44, no. 3 (2007): 130–36. http://dx.doi.org/10.2478/s11687-007-0020-x.

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AbstractUltrastructural features of juvenile cestodes (metacestodes) can provide useful characters for phylogenetic and evolutionary analyses. Until now, however, they have been relatively little utilised (Beveridge 2001, Chervy 2002). The postembryonic development and structure of fully formed metacestodes were examined in two cyclophyllideans: Taenia parva Baer, 1926 (Taeniidae); and Sobolevitaenia verulamii (Mettrick, 1958) Korniushin, 1972 (Dilepididae). In T. parva, three developmental stages were recognized: (1) an early stage of exogenous budding at the surface of the central vesicle; (

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Jones, Malcolm K., Ian Beveridge, Ron A. Campbell, and Harry W. Palm. "Terminology of the sucker-like organs of the scolex of trypanorhynch cestodes." Systematic Parasitology 59, no. 2 (2004): 121–26. http://dx.doi.org/10.1023/b:sypa.0000044428.55413.8a.

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Levron, Celine, Tomas Scholz, and Bahram S. Dezfuli. "Ultrastructure of microtriches on the scolex of Cyathocephalus truncatus (Cestoda: Spathe-bothriidea)." Folia Parasitologica 55, no. 4 (2008): 309–12. http://dx.doi.org/10.14411/fp.2008.039.

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Andersen, Karin. "S.E.M. observations on plerocercus larvae of Floriceps saccatus Cuvier, 1817 and Molicola horridus (Goodsir, 1841) (Cestoda; Trypanorhyncha) from sunfish (Mola mola)." Fauna norvegica 8 (December 31, 1987): 25–28. http://dx.doi.org/10.5324/fn.v8i0.6092.

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A topographic description of the plerocercus larva of Floriceps saccatus is given. The larva was found to be covered by palmate or paw-like microtriches, not only on the adherent surface of the bothridia as earlier described from adult trypanorhynch cestodes, but all over the plerocercus down to the region of pars proliferus. In the latter region ‘normal’ cestode microtriches were observed. On the surface of the plerocercus larva of Molicola horridus, however, no structure or microtriches were observed due to a true invagination of the scolex part of the larva.

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Hernández-Bello, Romel, Galileo Escobedo, Julio Cesar Carrero, et al. "A New Parasiticidal Compound inT. soliumCysticercosis." BioMed Research International 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/505240.

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The effect of 16α-bromoepiandrosterone (EpiBr), a dehydroepiandrosterone (DHEA) analogue, was tested on the cysticerci ofTaenia solium, bothin vitroandin vivo.In vitrotreatment ofT. soliumcultures with EpiBr reduced scolex evagination, growth, motility, and viability in dose- and time-dependent fashions. Administration of EpiBr prior to infection withT. soliumcysticerci in hamsters reduced the number and size of developed taenias in the intestine, compared with controls. These effects were associated to an increase in splenocyte proliferation in infected hamsters. These results leave open the

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