Signoret

Signoret N, Oldridge J, Pelchen-Matthews A, Klasse PJ, Tran T, Brass LF, Rosenkilde MM, Schwartz TW, Holmes W, Dallas W, Luther MA, Wells TN, Hoxie JA, Marsh M (1997) Phorbol esters and SDF-1 induce rapid endocytosis and down modulation of the chemokine receptor CXCR4. J Cell Biol 139 651-664... 

Cohen-Tannoudji J., Lavenet C., Locatelli A., Teillet Y. and Signoret J.R (1989). Non involvement of the accessory olfactory system in the LH reponse of anestrous ewes to male odor. J Reprod Fertil 86, 135-144. 

Signoret, J. P. and du Mesnil du Buisson, F. (1961) Etude du comportement de la truie en oestrus. Proceedings of the 4th International Congress on Animal Reproduction, 2, 171-175. 

Estradiol subsequently builds up in the blood and first (within 2 to 12 hours) reduces the levels of follicle-stimulating hormone (FSH) and the amplitude of LH pulses, then (within 12 to 48 hours) causes preovulatory surges of LH and FSH. The former promotes ovulation and development of a corpus luteum (reviewed in Martin et ah, 1986). Two compounds have been indicated in the effect of the odor of ram s fleece on LH secretion in anestrous ewes. These are 1,2-hexadecanediol and 1,2-octadecanediol. In Merino sheep at least, maximum stimulation of ovulation requires full exposure to a ram, such as fenceline contact in pastures. Olfactory cues from the ram s wool, presented in a facemask for the ewe, are ineffective by themselves visual and tactile stimuli are also important. The Merino breed does not rely as much on olfactory cues as other breeds of sheep (Pearce and Oldham, 1988). The effect is not necessarily species specific hair extract from male goats stimulates LH release in ewes. For this effect, the accessory olfactory system is not necessary (Signoret etah, 1989). 

Arnould, C. and Signoret, J. P. (1993). Sheep food repellents efficacy of various products, habituation, and social adlitation. Journal of Chemical Ecology 19,225-236. 

Arnould, C., Malosse, C., Signoret, J.-P., and Descoins, C. (1998). Which chemical constituents from dog feces are involved in its food repellent effect in sheep Journal of Chemical Ecology 24,559-576. 

Over, R., Cohen-Tannoudji, J., Dehnhard, M., Claus, R., and Signoret, J. P. (1990). Effect of pheromones from male goats on LH secretion in anoestrous ewes. Physiology and Behavior48,665-668. 

Signoret, J. A. (1975). Influence of the sexual receptivity of a teaser ewe on the mating preference in the ram. Applied Animal Ethology 1,229-232. 

Signoret, C., Doctoral Thesis, National Polytechnic Institute, Grenoble, France, 1989. 

Two pheromonal components were detected in airborne collections from the vine mealybug, Planococcus ficus Signoret (Hemiptera Pseudococci dae) in Israel. They were identified as (5 )-lavandulyl senecioate (1) and (5)-lavandulyl isovalerate (II). Compound I has been identified as the sex pheromone of P. ficus in California. The report shows that feral P. ficus mealybugs produce and respond only to (I) whereas mealybugs reared in the laboratory on potato sprouts produce and respond to both (I) and (II). 

The sex ph eromone of the obscure mealybug. Pseudococcus viburni Signoret (Homoptera Coccidae), consists of (li , 2i , 35 )-(2,3,4,4-tetramethylcyclopentyl)methyl acetate. This compound is interesting because it is the first example of a new monoterpenoid structural motif in which the two isoprene units forming the carbon skeleton are joined... 

Billard C, Gillet P, Signoret JL, Uicaut E, Bertrand P, et al. 1992. Cognitive functions in Duchenne muscular dystrophy A reappraisal and comparison with spinal muscular atrophy. Neuromuscul Disord 2 371-378. 

Zelphati, O., Imbach, J. L., Signoret, N., Zon, G., Rayner, B., and Leserman, L. (1994). Antisense Oligonucleotides in Solution or Encapsulated in Immunoliposomes Inhibit Replication of Hiv-1 by Several Different Mechanisms. Nucleic Acids Res. 22 4307-4314. 

J. Wissocq, E. Hennequin, C. Heurteaux, F. Marin, J. Signoret, S. Mebarki and M. Thellier, Spurenelement Symposium (4), eds. M. Anke, W. Baumann, H. Braunlich and C. Bruckner, Karl-Marx Universitat and Friedrich-Schiller Universitat, Leipzig and Jena, 1983, p. 127. 

Ngalani, J.A., Signoret, A., and Cronzet, J. Partial purification and properties of plantain polyphenoloxidase, Food Chem., 48, 341, 1993. 

Signoret N. Differential regulation of CXCR4 and CCR5 endocytosis. J Cell Sd 1998 lll(Pt 18) 2819-30. 

Signoret, J.P. 1991. Sexual pheromones in the domestic sheep importance and limits in the regulation of reproductive physiology. J. SteroidBiochem. Molec. Biol., 39, 639-645. 

As a final example, consider the stereotypic standing reaction of estrous sows. This stance, which includes immobility, kyphosis, and ear pointing, is necessary for swine to copulate, and it is usually triggered by tactile cues on the back, normally from the mounting boar. As described by Signoret (1970), the response is promoted by a volatile boar pheromone (androstenone), though this odor is not normally necessary or sufficient to induce sows to adopt the stance. Rather, olfactory and auditory cues increase the probability of response. 

Signoret, J.P. 1970. Reproductive behaviour of pigs. J. Reprod. Pert. (Suppl), 11, 105-117. 

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