Search results for "Hormone"
showing 6 items of 2056 documents
Long-Term Data Reveal the Associations of the Egg Quality With Abiotic Factors and Female Traits in the Baltic Herring Under Variable Environmental C…
2021
In fish, the lipid resources of the female form a link between the environment and progeny, contributing to the contents of the egg yolk. Variation of the environmental conditions is therefore expected to affect the egg quality via maternal pathways, reflecting the female’s response to the environmental factors before spawning. We investigated the content of lipids and thyroid hormones in the ovary and eggs of the Baltic herring during 1988–2019, when salinity of the Baltic Sea first declined and then stabilized to a lower level, and winters varied between severe and mild. The total lipid resources of spawning females decreased by 40–50% during the study, and the ovarian lipid concentration…
Influence of the sex reassignment on the subjective well-being of transgender men – results of the pilot study and discussion about future research
2017
This pilot study was aimed at verifying scientific reports on the good functioning of transgender people. On this basis, it was attempted to compare the subjective well-being of transgender men with heterosexual, homosexual and bisexual cisgender men. This study tried to verify the role of hormone therapy and surgical gender correction (sex reassignment surgery) as potential predictors of the subjective well-being of transgender men. Cisgender heterosexual men showed significantly higher subjective well-being in relation to members of the LGBTQ community (transgender men, homosexual and bisexual cisgender men). Sexual orientation of transgender men did not differentiate their subjective wel…
Wpływ korekty płci na poczucie jakości życia mężczyzn transpłciowych – wyniki badania pilotażowego oraz przyczynek do dalszych badań
2017
Badanie pilotażowe miało na celu weryfikację doniesień naukowych mówiących o dobrym funkcjonowaniu osób transpłciowych. Na tej podstawie starano się porównać poczucie jakości życia mężczyzn transpłciowych z cispłciowymi mężczyznami heteroseksualnymi, homoseksualnymi i biseksualnymi a także zweryfikować role terapii hormonalnej i operacyjnej korekty płci jako potencjalnych predyktorów poczucia jakości życia mężczyzn transpłciowych. Cispłciowi mężczyźni heteroseksualni wykazywali się istotnie wyższym poczuciem jakości życia w stosunku do członków społeczności LGBTQ (mężczyzn transpłciowych, cispłciowych męż - czyzn homoseksualnych i biseksualnych). Orientacja seksualna mężczyzn transpłciowych…
Physical Performance During the Menopausal Transition and the Role of Physical Activity
2020
Abstract Background To examine longitudinal changes in physical performance during the menopausal transition and the role of physical activity (PA) in these changes. Methods Based on follicle-stimulating hormone levels and bleeding diaries, women (47–55 years) were classified as early (n = 89) and late perimenopausal (n = 143) and followed prospectively until postmenopausal status, with mean duration of 17.5 and 13.8 months, respectively. Physical performance was measured by handgrip force, knee extension torque, vertical jumping height, maximal walking speed, and 6-minute walking distance. Physical activity was self-reported and categorized as inactive, low, medium, and high. Longitudinal …
Perimenopausal women show modulation of excitatory and inhibitory neuromuscular mechanisms.
2021
Background Menopausal transition exposes women to an early decline in muscle force and motor function. Changes in muscle quality and function, especially in lower limbs, are crucial, as they expose individuals to increased risk of falls. To elucidate some of the related neuromuscular mechanisms, we investigated cortical inhibition and peripheral muscle twitch force potentiation in women during the early and late stages of perimenopause. Methods Participants were 63 women aged 48–55 years categorized as early (EP, n = 25) or late (LP, n = 38) perimenopausal according to serum follicle-stimulating hormone (FSH) levels and menstrual diaries. EP women had an irregular menstrual cycle and FSH 2…
Associations of Sex Hormones and Hormonal Status With Arterial Stiffness in a Female Sample From Reproductive Years to Menopause
2021
ObjectiveLoss of sex hormones has been suggested to underlie menopause-associated increment in cardiovascular risk. We investigated associations of sex hormones with arterial stiffness in 19–58-years-old women. We also studied associations of specific hormonal stages, including natural menstrual cycle, cycle with combined oral contraceptives (COC) and menopausal status with or without hormone therapy (HT), with arterial stiffness.MethodsThis study includes repeated measurements of 65 healthy women representing reproductive (n=16 natural, n=10 COC-users) and menopause (n=5 perimenopausal, n=26 postmenopausal, n=8 HT-users) stages. Arterial stiffness outcomes were aortic pulse wave velocity (…