Search results for " Males"

Sexual dimorphism in the vertebral wedging of the human lumbar vertebrae and its importance as a comparative framework for understanding the wedging …

2020

Lumbar lordosis is a key element of the upright posture, being interpreted as a consequence of bipedal locomotion. There is consensus that the generic modern human pattern of metameric vertebral body wedging is sexually dimorphic in modern humans. However, recently published studies have compared this pattern with other hominins, such as Neanderthals. These tried to establish whether the (male) Neanderthal lumbar vertebrae express a pattern that falls within or outside the range of modern human males. In the present study, data collected by 3D landmarks of the lumbar vertebrae of modern humans from different geographic regions and Neanderthals (Ntotal = 505 individual vertebrae) are used to…

Gonadotropin Secretion in Eugonadotropic Human Males and Postmenopausal Females Under Long Term Application of a Potent Analog of Gonadotropin-Releas…

1978

Long-acting analogs are of special interest in long-term treatment with gonadotropin-releasing hormone (GnRH). However, inhibitory effects of agonist analogs on gonadotropin secretion or on reproductive processes have been observed in rats as well as in human males. Since these inhibitory effects seem to be dose-related, we checked the findings for d-Leu 6 -des-Gly 10 -GnRH-ethylamide within the dose range proposed by us for treatment. In six eugonadotropic human males, a significant decrease of luteinizing hormone and follicle-stimulating hormone responsiveness to a standard dose of GnRH and significant decrease of testosterone basal secretion were observed after 2 and 4weeks of subcutaneo…

Presentation of females and males in an English textbook series for Finnish upper-secondary schools

1997

Rome consensus conference - statement; human papilloma virus diseases in males

2013

Background Human Papillomavirus (HPV) is a very resistant, ubiquitous virus that can survive in the environment without a host. The decision to analyse HPV-related diseases in males was due to the broad dissemination of the virus, and, above all, by the need to stress the importance of primary and secondary prevention measures (currently available for women exclusively). The objective of the Consensus Conference was to make evidence-based recommendations that were designed to facilitate the adoption of a standard approach in clinical practice in Italy. Methods The Sponsoring Panel put a series of questions to the members of the Scientific Committee who prepared a summary of the currently av…

Testosterone and cortisol responses to competitive fighting in human males: A pilot study

1987

Departamento de Psicologia Fisiologica (A.S., V.S., F.S.) and Laboratorio de MedicinaNuclear e Isotopos (L.L.), Hospital Clinico Universitario, Universitat de Valencia, Valencia,SpainSerum testosterone and cortisol levels were measured by radioimmunoassay in 14young male judo competitors, in samples taken 10 minutes before and 45 minutes aftertwo different pr(Redures. The first involved physical exercise and the second competi-tive fighting. Both procedures were of 5 minutes duration and sessions took plate atthe same time (between 10:00 \.M. and 12:00 P.M. liR-al lime) but on different days.Comparing the two situations over all subjects revealed that testosterone increasedafter exercise an…

Long-term physical activity modifies automatic visual processing

2019

Electrophysiologically registered visual mismatch negativity (vMMN) is known to represent automatic visual processing in human visual cortex. Since physical activity (PA) is generally beneficial to cerebrovascular function, we wanted to find out if automatic visual processing is affected by PA. We investigated the connection between long-term leisure-time PA and precognitive visual processing in 32 healthy young males. Participants were divided into active (n = 16) and inactive (n = 16) group according to their leisure-time PA records from the past three years. vMMN was recorded with electroencephalogram using passive oddball paradigm with visual bars. Standard (90%) and deviant (10%) stimu…

Respuesta sexual en el varón adulto: estudio preliminar

2016

Las personas mayores cada vez otorgan más importancia a la vivencia activa de su sexualidad, lo que choque con algunas de las limitaciones físicas que impone la vejez. El objetivo de este trabajo es acercarnos a la vivencia de la sexualidad en hombres mayores a través de uno de los principales cuestionarios empleados en el estudio de la respuesta sexual masculina: el Índice Internacional de la Función Eréctil. Para ello, 38 hombres de entre 53 y 81 años completaron este y otros instrumentos a través de los cuales se encontró que si bien algunos aspectos de la respuesta sexual (como la función eréctil o el deseo sexual) efectivamente se veían afectados negativamente en hombres mayores, el im…

Testosterone responses to competition: the opponent’s psychological state makes it challenging

2010

Testosterone (T) increases after competition have typically been attributed to winning, yet there is also evidence that being victorious is not in itself sufficient to provoke a T response. Instead, it has been proposed that T responses are moderated by psychological processes. Here, we investigated whether the opponent's psychological state affected hormonal changes in men competing face to face on a rigged computer task. The results show that, irrespective of outcome, the competition led to increases in heart rate and T levels. We found that the T levels of the participants increased more when their opponents had high self-efficacy and that T levels were not influenced by participants' ow…

Evolution of life-history traits and mating strategy in males: a case study on two populations of a Drosophila parasitoid.

2016

10 pages; International audience; Abiotic and biotic factors affect life-history traits and lead populations to exhibit different behavioural strategies. Due to the direct link between their behaviour and fitness, parasitoid females have often been used to test the theories explaining these differences. In male parasitoids, however, such investigations are vastly understudied, although their mating strategy directly determines their fitness. In this study, we compared the pattern of life history traits and the mating strategy of males in two populations of the Drosophila parasitoid Asobara tabida, exposed to different biotic and abiotic conditions, with the major difference being that one o…

The effects of light exposure on the cortisol stress response in human males.

2020

It is assumed that the production of cortisol is modulated by light exposure. While initial evidence supports this principal effect, the specific effect of light (intensity and wavelength) onto the cortisol stress response is still not completely understood. One between-subject experiment was conducted in a standardized sleep laboratory setting to investigate the effect of light intensity (dim white vs. bright white light) and spectral composition (red vs. blue) on the cortisol response after the Maastricht Acute Stress Test (MAST). 112 healthy young males (24.83 ± 4.10 years of age) were randomly assigned to one of the four light conditions. Across conditions, light exposure was conducted …