Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"pre-pubertal"”.
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Fat and Fructose Consumption Affects Pre-pubertal Gilt Reproductive Tissues and Early Embryogenesis
… performed to assess the reproductive outcomes of pre-pubertal gilts consuming a high fat and/or high fructose diet and to demonstrate interactions between diet and infertility using pigs as a model. In the first experiment, follicular fluid was collected from these gilts and introduced into …
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Impact of chemotherapy on the release and function of extracellular vesicles in the pre-pubertal testis
… sperm following the onset of puberty. In post-pubertal males, this can be somewhat mitigated by the use of sperm cryopreservation for future fertility treatment. However, in pre-pubertal males, there are currently no viable fertility preservation options. As such, there is a need to reduce the …
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A qualitative study exploring the experiences of services of parents of pre-pubertal children who identify in gender diverse ways
… interest in families who raise children that express themselves in gender diverse ways alongside a dramatic increase in the number of referrals to clinics. Research on the experiences of parents is, however, very limited. Furthermore,gender diversity in very young children (i.e. pre-pubertal) …
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Body composition especially external skeletal robustness in association with physical activity and recreation in pre-pubertal children : a national and international investigation
… skeleton. In this way diseases are able to prevent in adulthood.
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Measuring anaerobic performance in children using accumulated oxygen deficit
… in three groups of male children classified as pre-pubertal, pubertal or post-pubertal. The second study investigated the potential differences in the oxygen uptake when discrete and continuous incremental submaximal protocols were used to determine the relationship between submaximal oxygen …
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Intrinsic Neuronal Plasticity of Kiss1 Neurons in Mice around Puberty
… early or too late can lead to adverse outcomes. Precocious puberty can result in attenuated growth, while delayed puberty can lead to mental health problems. Therefore, understanding puberty is essential for gaining insights into fertility, post-pubertal health, and species continuity. Puberty is …
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Dietary manipulation causes childhood obesity-like characteristics in pigs
… underlying diet-induced childhood obesity. Pre-pubertal female pigs, age 35 d, were fed a high-energy diet (HED; n = 12), containing tallow and refined sugars, or a control corn-based diet (n = 11) for 16 wk. Initially, HED pigs self-regulated energy intake similar to controls, but, by wk 5, …
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Innate Immune Cells may be Involved in Prepubertal Bovine Mammary Development
Pre-pubertal bovine mammary development involves ductal and stromal tissue changes. In mice, this process is impacted by presence of innate immune cells. Whether or not such immune cells are present or involved in bovine mammary development is unknown. We studied the presence, location and changes …
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The Effects of Dietary Fructose and Fat on the Reproductive Parameters of Prepubertal and Pregnant Gilts
… attainment; however, recent data suggests that pre-pubertal reproductive tract development may be altered by dietary sugar consumption. Two experiments were conducted to delineate the direct effects of fructose on the maturation of the pre-pubertal reproductive tract and fertility. At three …
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Mrp4 Is a Crucial Regulator of Testosterone Biosynthesis
… is unknown. It was discovered that Mrp4 is expressed primarily in mouse and human Leydig cells; however, there is no current evidence that Mrp4 regulates testosterone biosynthesis. The role of Mrp4 was investigated in Leydig cells where testosterone production is regulated by cAMP, an …
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The effects of pubertal maturation and sex on biomechanics associated with risk of anterior cruciate ligament injury
… are increasing in young athletes; however, post-pubertal females are more susceptible to non-contact ACL injuries than their male counterparts or pre-pubertal individuals. Considerable growth and development occur during pubertal maturation, including to the musculoskeletal and neuromuscular …
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Management and nutrition of the replacement gilt.
… and two, to better understand the influence of pre-pubertal growth rate and metabolic status on reproductive maturation, puberty attainment and potential litter size. In experiment 1, 192 Large White/Landrace crossbred gilts were used to compare the effects on puberty attainment of commencing …
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Dynamic Upper Leg Strength and Neuromuscular Function in Children, Adolescents and Adults
… stages and between sexes. Participants included pre-pubertal, late-pubertal and adult males and females. All completed 8 isometric and 8 isokinetic leg extensions at two different velocities. Peak torque (PT), rate of torque development (PrTD), electromechanical-day (EMD), rate of muscle …
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Cardiovascular disease risk in children : 'pre-clinical' markers and the impact of body composition, physical activity and cardiorespiratory fitness
… is one of the largest killers in the UK representing 30% of all global deaths. The underlying processes of the disease are thought to begin in childhood. Whilst traditional risk factors of CV disease (e.g. hypertension, hyperlipidemia, obesity, smoking, stress and sedentary lifestyles) are …
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The effects of post-term birth, hyperemesis gravidarum, and birth order on childhood metabolism and body composition
… and adults born small-for-gestational-age or preterm. In this thesis, glucose homeostasis and body composition (amongst other assessments) were evaluated in three under-explored groups of children, i.e. those i) born post-term (≥42 weeks gestation), ii) born of mothers who suffered from severe …
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Life history, growth and dental development in young primates: a study using captive rhesus macaques
… emerge, with a number of infants showing a pre-pubertal growth spurt and maintaining their physical advantage over the others. There is very little relationship between dental development and post-cranial somatic growth. Dental development together with cranial growth appear conservative and …
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Testosterone’s regulation of the HPA axis differs for adolescent and adult male rats
… to stressors than do adults and our lab has previously reported that gonadectomised pre-pubertal adolescent male rats (postnatal day [P] 35) do not show the dampening effect of testosterone replacement on CORT release in response to restraint stress found in adult rats (postnatal day [P] 75); …
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Effect of Physical Activity on Bone, Muscle and Fracture Risk during Growth
… musculoskeletal health in the population. Previous prospective pediatric exercise intervention studies, however, are short-term, mostly covering less than one year and use bone traits as surrogate endpoints for fractures. The Pediatric Osteoporosis Prevention (POP) study is a prospective, …
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Role of the oviduct environment in sperm storage
… evidence that creatine may be relevant to pre-fertilization events. In this study we sought to identify and localize the creatine transport channel SLC6A8. We performed SDS-PAGE and immunoblotting to detect SLC6A8 in sperm protein lysates and determined that it is present. To further …
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