Search results for "TESTO"
showing 10 items of 611 documents
Organizational and activational effects of testosterone in two populations with high androgenization susceptibility = Efectos organizadores y activad…
2013
Los esteroides sexuales como la testosterona (T) producen una organización y/o modificaciones relativamente permanentes de la estructura y función del sistema nervioso central. Una alta exposición prenatal a la T podría estar relacionada con una mayor sensibilidad a los efectos activadores de dicha hormona durante la edad adulta. Por otra parte, las fluctuaciones en los niveles endógenos de T pueden modificar transitoriamente las capacidades socio-cognitivas. Así, la conducta y los procesos cognitivos podrían ser el resultado de la interacción entre los efectos hormonales organizadores y activadores. La T podría ser considerada como un predictor de rasgos masculinizados tales como los rasgo…
High level of plasma estradiol as a new predictor of ischemic arterial disease in older postmenopausal women: the three-city cohort study.
2012
Background Despite evidence that estrogens may be involved in atherothrombosis, the role of endogenous sex steroid hormones in ischemic arterial disease among postmenopausal women remains uncertain. Methods and Results In the Three‐City prospective cohort study of subjects (n=9294) >65 years of age, we investigated the association of total 17β‐estradiol, bioavailable 17β‐estradiol, and total testosterone with the 4‐year incidence of ischemic arterial disease among postmenopausal women who did not use any hormone therapy. We designed a case–cohort study including a random sample of 537 subjects and 106 incident cases of first cardiovascular events. Weighted Cox proportional‐hazards model…
Prenatal androgen exposure modulates cellular and humoral immune function of black-headed gull chicks
2005
Avian eggs contain considerable amounts of maternal yolk androgens, which have been shown to beneficially influence the physiology and behaviour of the chick. As androgens may suppress immune functions, they may also entail costs for the chick. This is particularly relevant for colonial species, such as the black-headed gull (Larus ridibundus), in which the aggregation of large numbers of birds during the breeding season enhances the risk of infectious diseases for the hatching chick.To test the effect of maternal yolk androgens on the chick's immune function, we experimentally manipulated, in a field study, yolk androgen levels within the physiological range by in ovo injection of either a…
Food supplementation reveals constraints and adaptability of egg quality in the magpie Pica pica
2015
Differences in the deposition of limited maternal resources to eggs can reflect the optimal allocation to manipulate offspring phenotype, or constraints caused by maternal condition. We examined multiple maternal substances transferred to eggs in the magpie Pica pica to test the hypothesis that certain substances represent constraint and some optimal allocation. We did this by supplementary feeding magpies prior to egg-laying and then comparing the effect of food on maternal substances in conjunction with laying order relative to a control group. Certain substances such as carotenoids, immunoglobulins and avidin responded positively to food supplementation, whereas others, such as testoste…
Verso un curricolo 0-6: continuità, discontinuità e prospettive possibili a partire da un percorso di ricerca-azione nella città di Palermo
2021
A partire da una ricerca sulla costruzione di un possibile curricolo zero-sei, condotta con un gruppo di insegnanti di scuola dell’infanzia statale ed un gruppo di educatrici di un nido comunale operanti nello stesso territorio (un quartiere del centro storico di Palermo), l’articolo mira a mettere in luce e a problematizzare ambiti di continuità e di discontinuità tra i due servizi educativi collegandoli alla storia e alla cultura organizzativa dei servizi stessi. Intende, inoltre, riflettere su possibili proposte di cambiamento organizzativo nella direzione della continuità, attraverso l’adozione di una metodologia partecipativa centrata sulla autovalutazione riflessiva, sulla progettazio…
Active and passive recovery influence responses of luteinizing hormone and testosterone to a fatiguing strength loading
2018
The purpose of this study was to examine the acute hormonal and muscular responses to a strenuous strength loading [bilateral leg press (LP) 10x10 1RM] followed by loading-specific active (AR, n = 7, LP 10x10x30% 1RM) or passive (PR, n = 11, seated) recovery. The subjects were men age: 26±4 years, height: 174±8 cm, body mass: 75±13 kg. After control measurements, experimental measurements were conducted at pre and post loading as well as post recovery and next morning. A significantly higher absolute concentration (p<0.05) of serum luteinizing hormone (LH) was observed in AR than PR at next morning while no differences were observed in serum testosterone (T), cortisol (C) or sex hormone bin…
"Travailler plus pour gagner plus". Análisis cultural de un lema de la campaña presidencial francesa del 2007
2019
“Travailler plus pour gagner plus” (“Work more to earn more”) was a slogan of right-wing candidate Nicolas Sarkozy during the 2007 French presidential election, which proposed exempting overtime working hours from taxation. In this article, I develop a cultural analysis of this political slogan. Its linguistic interest lies in its poetic and theatrical dimensions. The slogan is embedded in a rich cultural context: it refers to a doxa in right-wing discourse, according to which the “social model” should be replaced with a liberal model that also rescues the “value of work”. It responded to voter economic and social concerns, which were supported by the media. Through such strong slogans, Nic…
Voimaharjoituksen ja proteiinilisän akuutit testosteroni- ja androgeenireseptorivasteet vanhoilla miehillä.
2010
Salo, Tiina 2007. Voimaharjoituksen ja proteiinilisän akuutit testosteroni- ja androgeenireseptorivasteet vanhoilla miehillä. Liikuntafysiologian kandidaatintutkielma. Liikuntabiologian laitos, Jyväskylän yliopisto, 39 s. Testosteroni vaikuttaa kohdesoluihinsa, kuten lihassoluihin, androgeenireseptoreiden (AR) välityksellä (esim. Lee & Chang 2003) saaden aikaan mm. lisääntyneen lihaksen proteiinisynteesin (esim. Ahtiainen 2006, 24). Tämän tutkimuksen tarkoituksena oli selvittää voimaharjoituksen ja proteiinilisän vaikutus seerumin testosteroniin sekä androgeenireseptoreiden ilmentymiseen mRNA- ja proteiinitasolla vanhoilla miehillä. Koehenkilöinä oli 24 57 72-vuotiasta miestä, joista kuus…
Środowisko a antybiotykooporność izolatów Escherichia coli
2017
Pula farmaceutyków w środowisku powiększa się w wyniku kontaminacji wód, gruntów, ścieków, a także surowców pochodzenia zwierzęcego. Obecność antybiotyków w środowisku wpływa nie tylko na zahamowanie rozwoju mikroorganizmów, ale w stężeniu subinhibicyjnym może stymulować ekspresję genów wywołujących zjawisko antybiotykooporności. Celem pracy było porównanie wrażliwości na antybiotyki pałeczek Escherichia coli wyizolowanych z surowego mleka i zmieszanych odpadów drobiarskich. Materiał badawczy stanowiły szczepy E.coli wyizolowane z surowca mleczarskiego i zmieszanych odpadów drobiarskich. Ocenę wrażliwości izolatów na antybiotyki przeprowadzono metodą Kirby-Bauera. Profil oporności E. coli u…
Neuromuscular, hormonal and oxidative stress responses to endurance running exercises in well-trained runners
2007
The aim of this study was to investigate to which type of running exercises well trained endurance runners respond more favourably with regard to acute neuromuscular and endocrinological responses and exercise-induced oxidative stress. It was hypothesized that these responses depend on the type of running exercise and relate to the physical characteristics. Altogether nine different running exercises and a long walking exercise were performed by a total of 88 male athletes. An intermittent exercise consisting of progressive 20 s runs decreased vertical jump performance in middle distance runners (MID), but improved it in marathon runners (MAR). An 18 – 24 min exhaustive test run, a 40 min i…