Adrienne Fontan

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The repellency of N,N-diethyl-3-methylbenzamide (deet) to Triatoma infestans (Klug) (Hemiptera: Reduviidae) was evaluated using third-instar nymphs and a video tracking technique. Three experimental designs were used: (a) the test arena floor was divided into two halves, only one of which was treated with deet; (b) the arena floor was divided into an inner(More)
BACKGROUND Most studies of alternative/complementary medicine use in children have focused on children with chronic illness and have not addressed the more common form of complementary medicine: popular home-based interventions and therapies for common low-morbidity sickness episodes. Also, there has often been a distinction between alternative/(More)
Störungen der Okulomotorik sind bei der Huntington-Krankheit (HK) seit langem beschrieben worden. Über die genauere Korrelation zwischen okulomotorischen Störungen und klinischen Verlaufsformen ist jedoch wenig bekannt. Wir haben die Blicksakkaden bei 32 Huntington-Patienten mit molekulargenetisch gesicherter HK untersucht. Sie gliedern sich in 3 Gruppen:(More)
Recent studies have shown that progressive supranuclear palsy (PSP) could be inherited, but the pattern of inheritance and the spectrum of the clinical findings in relatives are unknown. We here report 12 pedigrees, confirmed by pathology in four probands, with familial PSP. Pathological diagnosis was confirmed according to recently reported internationally(More)
Huntington's disease (HD) is characterized by the presence of hyperkinesias, but bradykinesia is also present in most patients. We studied the motor performance of 18 patients with genetically proven HD (age, 38.5 +/- 10 y; clinical stage, 1.7 +/- 1.7; (CAG) triplet length, 49.2 +/- 6.8 triplets; all but three patients were free from neuroleptics) and(More)
Esteratic activity was found in the integument of adult Triatoma infestans, principally located in the epidermis. Specific activity was on average 29.3 nM phenylthioacetate/hr per anatomical unit. Esteratic activity depends on the insect's age and its starvation state. A dramatic increase was observed 1 week after moulting followed by a slight decay as a(More)
1. LC50 of malathion, fenitrothion and lindane were determined in R. prolixus and T. infestans. R. prolixus was shown to be tolerant to malathion. 2. The penetration rate of (14C)-malathion into R. prolixus and T. infestans was similar. 3. Acetylcholinesterase from R. prolixus heads was 3.3-fold less sensitive to inhibition by malaoxon than the similar(More)
The hyperactivity produced in third instar nymphs of Triatoma infestans by their exposure to films of deltamethrin or cis-permethrin was evaluated. Both pyrethroids produced a significant increase in locomotor activity at 26 and 36 degrees C but not at 16 degrees C. At 26 degrees C, only deltamethrin produced hyperactivity when topically applied on the(More)
1. The influence of nutritional state over topical insecticidal activity of DDT in nymph II of Triatoma infestans was analyzed. 2. DDT LD50 for starved nymph II was more than 150 micrograms/insect, while for nymph II fed to repletion on artificial feeder, was 0.79(0.50-3.13) micrograms/insect and a similar result was obtained for nymph II fed on pigeons(More)
Volatile emissions of adult male Triatoma infestans were collected on non-polar SPME fibers and analyzed by gas chromatography linked to a mass spectrometer. A complex mixture of 16 short-chain esters and acids were identified. The composition of short-chain aliphatic acids (ethanoic to nonanoic acids) was similar to previously reported results. The most(More)