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experimental brugia timori and wuchereria bancrofti infections in certain species of mosquitoes.laboratory reared aedes aegypti (black eye and jakarta strains), aedes togoi, (taiwan), aedes albopictus, (jakarta), wild caught anopheles barbirostris, (java) and mansonia uniformis, (jakarta) were fed on a carrier with mixed infection of brugia timori and wuchereria bancrofti. b. timori and w. bancrofti were able to develop in a. aegypti (black eye) and a. togoi, with development proceeding more rapidly for of b. timori than w. bancrofti. both species of parasites were readily distinguishable ...197724275
the lethal effects of the cibarial and pharyngeal armatures of mosquitoes on microfilariae.microfilariae of wuchereria bancrofti and brugia pahangi were killed by the chewing action of the cibarial and pharyngeal armatures and other papillae and spines in the fore-gut of mosquitoes. the proportion of ingested microfilariae that were killed was largely dependent on the presence and shape of the cibarial armature. anopheles farauti no. 1 and anopheles gambiae species a and b have well developed cibarial armatures and killed 36 to 96% of the ingested microfilariae. culex pipiens fatigans ...197830190
experimental transmission of subperiodic wuchereria bancrofti to the leaf monkey (presbytis melalophos), and its periodicity.infective larvae of nocturnally subperiodic wuchereria bancrofti were obtained from laboratory-raised aedes togoi mosquitoes which had fed on an infected human volunteer from kanchanaburi, thailand, and 471 of them were inoculated subcutaneously into the inguinal regions of an immunosuppressed presbytis melalophos. microfilaremia was first detected 287 days after inoculation, and 77 days later, at 364 days of infection, the number of microfilariae determined at 2-hour intervals reached a maximum ...19826805349
identification of some common infective filarial larvae in malaysia.infective larvae of wuchereria, brugia, breinlia, dirofilaria and setaria species from an experimental vector, aedes togoi, are compared. the distinctive bubble-like caudal papillae of wuchereria bancrofti are readily distinguishable from the protuberant ones of brugia spp; the 'ear-like' papillae of breinlia are distinct from the 'knob-like' ones of dirofilaria or the 'thorn-like' terminal papilla of setaria.19827069185
preliminary observations on the development of larval filariae in toxorhynchites species.brugia malayi and b. pahangi microfilariae from gerbil intraperitoneal infections were inoculated into the thorax of male and female toxorhynchites amboinesis and developed into third-stage larvae as early as 11 days. in a comparative study with aedes togoi fed on microfilaremic gerbils, third-stage larvae were found at 10 days. some third-stage larvae of b. malayi inoculated into gerbils developed to advanced stages. third-stage larvae of wuchereria bancrofti were recovered in low numbers from ...19806101531
bancroftian filariasis and malaria in island and hinterland populations in sabah, malaysia.an epidemiological survey of filariasis and malaria in banggi island and upper kinabatangan, sabah, revealed microfilarial rates of 7.2% and 8.6% respectively and malaria prevalence of 9.7% and 16.9% respectively. wuchereria bancrofti was a rural nocturnally periodic type with a periodicity index of 137.2 and average peak hour at 01.32 hrs; 9.2% of microfilaremic carriers as compared to 2.4% amicrofilaremic subjects had clinical filariasis. the plasmodium falciparum: p. vivax: p. malariae ratios ...19853898498
attempt to culture wuchereria bancrofti in vitro.third-stage larvae of wuchereria bancrofti recovered from laboratory raised aedes togoi and anopheles maculatus fed on a human volunteer were recovered by mass dissection methods and introduced into in vitro culture. llc-mk2 cells were used as feeder cells, and the culture medium consisted of rpmi-1640 buffered with hepes and sodium bicarbonate and supplemented with human ab serum. the third-stage larvae molted as early as 12 days and those surviving had all molted by 16 days. the fourth-stage p ...19863554544
ivermectin inhibits molting of wuchereria bancrofti third stage larvae in vitro.the effect of ivermectin or diethylcarbamazine (dec) on wuchereria bancrofti molting from the third to the fourth larval stage (l3 to l4) was evaluated in vitro. l3 larvae were harvested from laboratory-reared aedes togoi 2 wk after feeding upon a microfilaremic human volunteer. the larvae were kept in an artificial medium (franke's ni medium) with 10% human serum under an atmosphere of 5% co2 for 20 days. experimental tubes also contained ivermectin (0.1-1,000 ng/ml) or dec (0.1-10,000 ng/ml). ...19911992087
factors affecting transmission of wuchereria bancrofti by anopheline mosquitoes. 4. facilitation, limitation, proportionality and their epidemiological significance.quantitative understanding of the transmission dynamics of lymphatic filarial parasites is essential for the rational planning of control strategies. one of the most important determinants of transmission dynamics is the relationship between parasite yield, the success rate of ingested microfilariae (mf) becoming infective larvae in a mosquito vector, and mf density in the source of the human blood meal. three types of relationship have been recognized in human filaria/mosquito couples--limitati ...19921475823
experimental transmission of wuchereria bancrofti to monkeys.infective larvae of wuchereria bancrofti from laboratory-raised culex pipiens fatigans and aedes togoi mosquitoes fed on human volunteers in jakarta, indonesia (j strain) and kinmen island, china (k strain) were introduced into taiwan monkeys (macaca cyclopis) by subcutaneous inoculation, by foot puncture, or by permitting infected mosquitoes to feed weekly on the monkeys. some animals were splenectomized and others were treated with varying regimens of immunosuppressants. necropsy was done on m ...1979107818
a review of the role of mosquitoes in the transmission of malayan and bancroftian filariasis in japan.malayan filariasis is found in japan only on the small island of hachijo-koshima and is transmitted there by aëdes togoi and probably by culex pipiens pallens.bancroftian filariasis is widely distributed in the three main islands, and is of particularly high endemicity in the south. of the ten mosquito species proved experimentally susceptible to wuchereria bancrofti, only aëdes togoi and culex p. pallens seem to be responsible for transmission of the disease. the former species is of importance ...196213940117
[studies on the susceptibility of anopheles anthropophagus to experimental infection with wuchereria bancrofti].this paper reports the susceptibility of anopheles anthropophagus (xu et feng, 1975) to experimental infection with wuchereria bancrofti (cobbold, 1877), comparing with that of an. sinensis wiedemann, 1828, culex pipiens quinque fasciatus say, 1823, and aedes togoi (theobald, 1907). of 188 an. anthropophagus, 202 an. sinensis, 280 cx. pipiens quinque fasciatus and 129 ae. togoi infected by the blood of a bancroftian microfilaremia with mff density of 190 mff/20cmm, the infective rates were 35.64 ...19938174212
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