{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,19]],"date-time":"2023-10-19T21:49:00Z","timestamp":1697752140353},"reference-count":11,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[2009,4,6]],"date-time":"2009-04-06T00:00:00Z","timestamp":1238976000000},"content-version":"unspecified","delay-in-days":11449,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Parasitology"],"published-print":{"date-parts":[[1977,12]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>In <jats:italic>Hymenolepis diminuta<\/jats:italic> the <jats:italic>in vitro<\/jats:italic> rate of absorption of glucose\/unit dry weight of worm falls with increasing worm age, with increasing worm weight and as the number of worms in an infection is increased. In a 6 mM solution of glucose, a 5 mg (dry weight) worm from a 7 or 8 worm infection absorbed 80 \u00b5moles\/g dry weight\/5 min whereas a 60 mg worm, also from a 7 or 8 worm infection, absorbed only 35\u00b5moles\/g dry weight\/5 min. This change in the rate of absorption is, at least partly, thought to be due to changes in the relative surface area: weight ratio during growth of the worm.<\/jats:p><jats:p>The kinetic parameter, <jats:italic>K<\/jats:italic><jats:sub><jats:italic>t<\/jats:italic><\/jats:sub> glucose, increased from 1.1 mM for a 5 mg (dry weight) worm from a 7 or 8 worm infection to 2 mM for a 60 mg worm. This change in the functioning of the glucose transport system may indicate that there are two components of the glucose transport system \u2013 or two separate systems \u2013 one with a low <jats:italic>K<\/jats:italic><jats:sub><jats:italic>t<\/jats:italic><\/jats:sub> and one with a high <jats:italic>K<\/jats:italic><jats:sub><jats:italic>t<\/jats:italic><\/jats:sub>, the ratios of which change during worm growth.<\/jats:p><jats:p>The smaller the number of worms in an infection the greater the rate of glucose absorption. Using 8\u2013day\u2013old worms in a 6 mM glucose solution, 1 worm from a single worm infection absorbs 111 \u03bcmoles\/g dry weight\/5 min, 1 worm from a 7 or 8 worm infection absorbs 88 \u03bcmoles\/g dry weight\/5 min and 1 worm from a 45\u201350 worm infection absorbs 77 \u03bcmoles\/g dry weight\/5min. The significance of this is discussed with reference to the \u2018crowding effect\u2019 in tapeworms.<\/jats:p>","DOI":"10.1017\/s0031182000051817","type":"journal-article","created":{"date-parts":[[2009,6,5]],"date-time":"2009-06-05T12:53:04Z","timestamp":1244206384000},"page":"277-284","source":"Crossref","is-referenced-by-count":18,"title":["The effect of worm, age, weight and number in the infection on the absorption of glucose by <i>Hymenolepis diminuta<\/i>"],"prefix":"10.1017","volume":"75","author":[{"given":"D.","family":"Henderson","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2009,4,6]]},"reference":[{"key":"S0031182000051817_ref001","doi-asserted-by":"crossref","first-page":"214","DOI":"10.2307\/3278611","article-title":"Absorption of glucose and sodium acetate by cysticercoid larvae of Hymenolepis diminuta","volume":"59","author":"Aeme","year":"1973","journal-title":"Journal of Parasitology"},{"key":"S0031182000051817_ref011","doi-asserted-by":"publisher","DOI":"10.1007\/BF00696270"},{"key":"S0031182000051817_ref005","doi-asserted-by":"publisher","DOI":"10.2307\/3276354"},{"key":"S0031182000051817_ref010","doi-asserted-by":"publisher","DOI":"10.1016\/0014-4894(66)90031-2"},{"key":"S0031182000051817_ref006","doi-asserted-by":"publisher","DOI":"10.1016\/0014-4894(75)90016-8"},{"key":"S0031182000051817_ref002","doi-asserted-by":"publisher","DOI":"10.1016\/0300-9629(71)90263-5"},{"key":"S0031182000051817_ref009","doi-asserted-by":"publisher","DOI":"10.1111\/j.1749-6632.1963.tb40664.x"},{"key":"S0031182000051817_ref007","doi-asserted-by":"publisher","DOI":"10.2307\/3275334"},{"key":"S0031182000051817_ref003","doi-asserted-by":"publisher","DOI":"10.1016\/0005-2736(73)90203-4"},{"key":"S0031182000051817_ref008","doi-asserted-by":"publisher","DOI":"10.1016\/0014-4894(59)90030-X"},{"key":"S0031182000051817_ref004","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1016\/0014-4894(57)90019-X","article-title":"The in vitro fermentation of carbohydrates by two species of cestodes and one species of Acanthocephala","volume":"6","author":"Lattbie","year":"1957","journal-title":"Experimental Parasitology"}],"container-title":["Parasitology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0031182000051817","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,27]],"date-time":"2019-05-27T16:47:03Z","timestamp":1558975623000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0031182000051817\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1977,12]]},"references-count":11,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1977,12]]}},"alternative-id":["S0031182000051817"],"URL":"https:\/\/doi.org\/10.1017\/s0031182000051817","relation":{},"ISSN":["0031-1820","1469-8161"],"issn-type":[{"value":"0031-1820","type":"print"},{"value":"1469-8161","type":"electronic"}],"subject":[],"published":{"date-parts":[[1977,12]]}}}