| identification of midgut trypanolysin and trypanoagglutinin in glossina palpalis sspp. (diptera: glossinidae). | a midgut trypanolysin and an agglutinin from glossina palpalis subspecies were isolated and partially characterized using anion-exchange chromatography and polyacrylamide gel electrophoresis. fplc fractions of midgut extracts of glossina palpalis palpalis caused agglutination and lysis of two trypanosome species (trypanosoma congolense and trypanosoma brucei brucei), although glossina palpalis gambiensis caused only agglutination. the trypanolysin and agglutinin were active only in the posterior ... | 1990 | 2092294 |
| trypanosoma brucei brucei induces alteration in the head proteome of the tsetse fly vector glossina palpalis gambiensis. | parasitic manipulations of host behaviour are known from a wide range of host-parasite associations. however, the understanding of these phenomena is far from complete and detailed investigation of their proximate causes is needed. many studies report behavioural modifications, such as altered feeding rates in tsetse fly (glossina) infected with the mature transmissible stage (i.e. metacyclic) of the trypanosomes. here, bidimensional (2d) gel electrophoresis and mass spectrometry were employed t ... | 2007 | 18092995 |
| vector competence of glossina palpalis gambiensis for trypanosoma brucei s.l. and genetic diversity of the symbiont sodalis glossinidius. | tsetse flies transmit african trypanosomes, responsible for sleeping sickness in humans and nagana in animals. this disease affects many people with considerable impact on public health and economy in sub-saharan africa, whereas trypanosomes' resistance to drugs is rising. the symbiont sodalis glossinidius is considered to play a role in the ability of the fly to acquire trypanosomes. different species of glossina were shown to harbor genetically distinct populations of s. glossinidius. we there ... | 2007 | 17012373 |
| [vectorial competence of glossina tachinoides westwood and glossina palpalis gambiensis vanderplank infected by trypanosoma brucei brucei eatro 1125]. | the vectorial competence (vc) of teneral (less than 32 h) glossina tachinoides westwood and g. palpalis gambiensis vanderplank, fed simultaneously on a guinea-pig infected with trypanosoma brucei brucei eatro 1125, was assessed. statistical analysis of the experimental results revealed that female g. tachinoides had a significantly higher midgut infection rate than males. such a sex-related difference was not observed in g. p. gambiensis. male g. p. gambiensis had higher midgut infection rates t ... | 1998 | 9851007 |
| post eclosion age predicts the prevalence of midgut trypanosome infections in glossina. | the teneral phenomenon, as observed in glossina sp., refers to the increased susceptibility of the fly to trypanosome infection when the first bloodmeal taken is trypanosome-infected. in recent years, the term teneral has gradually become synonymous with unfed, and thus fails to consider the age of the newly emerged fly at the time the first bloodmeal is taken. furthermore, conflicting evidence exists of the effect of the age of the teneral fly post eclosion when it is given the infected first b ... | 2011 | 22087240 |
| [vectorial capacity of glossina palpalis gambiensis (bobo dioulasso) for trypanosoma brucei brucei eatro 1125]. | a total of 440 teneral glossina palpalis gambiensis received one single bloodmeal on a guinea pig infected chronically with trypanosoma brucei brucei eatro 1125. metacyclic infections were present in 11.29% of the flies, in 2.32% infections were limited to procyclical stages. no significant difference in vectorial capacity was observed between male and female flies, the level of metacyclic infections being 13.19% in the former and 9.55% in the latter. the parasitaemia level, the percentage of st ... | 1991 | 1843825 |
| high frequency of (kinetoplastida: trypanosomatidae) type among (diptera: glossinidae) in a historic trypanosoma foci in north-eastern gabon: preliminary study. | human african trypanosomiasis became a neglected disease after the 1960s, when case numbers dropped dramatically. it again became a public health problem in sub-saharan africa at the end of the 1990s, when new cases were reported, notably in central africa, and specifically in gabon, where historic foci existed and new cases have been reported. therefore, the present study reports on an entomological survey conducted in may 2012 to determine the pathogenic trypanosome infection rate in tsetse fl ... | 2016 | 27113105 |