The prothoracicotropic hormone (PTTH) of Rhodnius prolixus (Hemiptera) is noggin-like: Molecular characterisation, functional analysis and evolutionary implications

Autor: Xanthe Vafopoulou, Logan W. Donaldson, Colin G.H. Steel

Publikováno v: General and comparative endocrinology. 332

Prothoracicotropic hormone (PTTH) is a central regulator of insect development that regulates the production of the steroid moulting hormones (ecdysteroids) from the prothoracic glands (PGs). Rhodnius PTTH was the first brain neurohormone discovered

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b0af2d748e3e7d35ba321c8337a78ff
https://pubmed.ncbi.nlm.nih.gov/36455643

Neuropeptide- and serotonin- cells in the brain of Rhodnius prolixus (Hemiptera) associated with the circadian clock

Autor: Xanthe Vafopoulou, Martha Hindley-Smith, Colin G.H. Steel

Publikováno v: General and comparative endocrinology. 278

The neuronal pathways of the circadian clock in the brain of R. prolixus have been described in detail previously, but there is no information concerning the cells or their pathways which relay either inputs to the clock (e.g. for light entrainment),

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e3ebf236dda3bc54529a4df992d0b64
https://pubmed.ncbi.nlm.nih.gov/30048647

Metamorphosis of a clock: Remodeling of the circadian timing system in the brain of Rhodnius prolixus (Hemiptera) during larval-adult development

Autor: Colin G.H. Steel, Xanthe Vafopoulou

Publikováno v: The Journal of Comparative Neurology. 520:1146-1164

The rhythmic phenomena expressed by organisms change over their lifetimes, but little is known of accompanying reorganization of the central circadian timing system in the brain. Especially dramatic changes in overt rhythms and morphology occur durin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30fc6f5c85685245a8cb4a58ddf96cd2
https://doi.org/10.1002/cne.22743

Non-genomic ecdysone effects and the invertebrate nuclear steroid hormone receptor EcR—new role for an 'old' receptor?

Autor: Markus Lezzi, Xanthe Vafopoulou, Robert Eugene Hormann, Uwe Schlattner, Colin G.H. Steel

Publikováno v: Molecular and Cellular Endocrinology
Molecular and Cellular Endocrinology, Elsevier, 2006, 247 (1-2), pp.64-72. ⟨10.1016/j.mce.2005.12.051⟩

International audience; The ecdysteroids (Ec), invertebrate steroid hormones, elicit genomic but also non-genomic effects. By analogy to vertebrates, non-genomic responses towards Ec may be mediated not only by distinct membrane-integrated but also b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cd7662cb612035d24b6c28e9cd325f6
https://doi.org/10.1016/j.mce.2005.12.051

Prothoracicotropic hormone ofRhodnius prolixus: partial characterization and rhythmic release of neuropeptides related toBombyxPTTH and bombyxin

Autor: Colin G.H. Steel, Xanthe Vafopoulou

Publikováno v: Invertebrate Reproduction & Development. 42:111-120

Summary The brain-retrocerebral complex (br-complex) of Rhodnius prolixus was found both to contain and release neuropeptides related to Bombyx mori PTTH and bombyxin. A > 10 kDa peptide fraction obtained from extracts and incubation media of br-comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::844990f5d1cf3c5d0671c1887387addb
https://doi.org/10.1080/07924259.2002.9652767