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 69 for “"reproductive function"”.
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Effects of Quaternary Ammonium Disinfectants on Mouse Reproductive Function
… these compounds have been used for decades, reproductive toxicity has not been thoroughly evaluated. Extensive use of QACs results in ubiquitous human exposure to potentially toxic compounds. Reproductive toxicity of two common QACs, alkyl dimethyl benzyl ammonium chloride (ADBAC) and didecyl …
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Resveratrol: therapeutic role in metabolic and reproductive function in obese broodmares
… on parameters of metabolic health and reproductive cyclicity in obese mares on pasture. Seventeen healthy, mares were matched by age and assigned to obese control (OBC; n=5, mean BCS=7.4±0.3), obese supplemented with 5g/d resveratrol (OBR; n=6, mean BCS=7.4±0.2) or non-obese control …
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Effects of Dietary Arginine Deficiency on the Reproductive Function of the Rat
… component for normal sexual maturation and reproductive performance. Dietary arginine deprivation imposed before mating resulted in reduced fertility. When pregnant rats were fed an arginine-deficient diet, both the placental and fetal development were retarded at the end of gestation. The …
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The impact of genetic, environmental and life-style factors on male reproductive function
… significant geographical differences in male reproductive function have been observed. In Finland, the sperm concentration was found to be substantially higher than in Denmark. In parallel, the incidence of testicular cancer (TC) and of congenital malformations of male genital organs is …
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Reproductive function in young Swedish men - Time trend, prenatal and adult exposure to smoking and phthalates
A decrease in male reproductive function, including sperm counts, during the second half of the 20th century, has been postulated. During this period, testicular cancer has increased several-fold. Environmental and lifestyle-related factors have been proposed as explanations for a possible negative …
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Variation in age at menarche and adult reproductive function: the role of energetic and psychosocial stressors
Reproductive ecology has long examined the flexibility of women’s reproductive function in the face of variable environments. The timing of a woman’s first menses, or age at menarche, is both used as a proxy of childhood stressors and correlated with adolescent and adult reproductive function. This …
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EFFECTIVENESS OF HYPOCALORIC DIETARY INTERVENTION ON CHANGES IN BODY COMPOSITION AND REPRODUCTIVE FUNCTION IN WOMEN WITH POLYCYSTIC OVARY SYNDROME
… and is associated with cardiometabolic and reproductive dysfunction. These include an increased risk of obesity, metabolic syndrome, cardiovascular disease, menstrual cycle irregularity, anovulatory infertility, endometrial hyperplasia, and gynecological cancers. Overweight and obesity is …
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The glucocorticoid receptor plays a central role in mammalian reproduction and signal integration in pituitary gonadotropes
… integrating cellular responses to stress with reproductive function. This study investigated if membrane rafts play a role in GR and GnRH receptor (GnRHR) crosstalk and explored the mechanism involved in the mouse pituitary gonadotrope LβT2 cell line by dexamethasone (Dex), GnRH and both …
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Mechanistic Studies of Lipoxygenases Using Synthetic Substrate Analogues
… well as in cardiovascular, gastrointestinal and reproductive function modulation. However, if excessively stimulated, this process leads to oxidative stress and pathologies such as cancer, atherosclerosis or Alzheimer's disease. Lipoxygenases are one of two enzyme classes that catalyze the first …
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Investigations of the action of vitamin A and beta carotene on reproductive performance in pigs
The reproductive efficiency of the breeding sow is a major limitation to profitability in the pork industry. Investigations on the treatment of sows with retinol proprionate or retinol palmitate and their effect on reproductive function were undertaken. The objectives of this work were to …
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An Unholy Union? : Eugenic Feminism in the Nordic Countries, ca. 1890-1940
… eugenics is often thought to restrict women's reproductive choices, whereas feminism empowers women's reproductive choices. This dissertation examines the engagement of Nordic feminists with eugenic ideals between 1890 and 1940. It investigates prominent feminists and feminist organizations …
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Prevalence of Premature Ovarian Failure In Women With Tuberous Sclerosis
… a crucial role of the TSC genes in ovarian function. Mice with complete deletion of <em>Tsc1</em> or <em>Tsc2</em> showed accelerated ovarian follicle activation and subsequent premature follicular depletion, consistent with the human condition premature ovarian failure (POF). POF is defined …
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Melatonin and seasonal cycles in muskoxen
… of this study were to characterize the annual reproductive cycle and melatonin rhythm in muskoxen at 52°N and to investigate the role of photoperiod in timing seasonality. During the first part of the study, changes in reproductive function and circulating melatonin patterns were studied in 15 …
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The role of extracellular loop three of the human gonadotropin releasing hormone receptor in ligand selectivity
… stimulating hormone (FSH), which regulate reproductive function. Multiple forms of GnRH are present in most vertebrate species and are thought to have physiological functions in addition to regulating pituitary hormone release. The mammalian type I GnRH receptor is proposed to discriminate …
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Student perceptions of connotations of reproductive physiology terms found in college human sexuality textbooks
… in student perceptions of connotations of reproductive physiology in human sexuality textbooks. The intention of this study was to identify and document any gender bias that may exist in the wording of textbooks published between 2000 and 2002 that address reproductive function. Four …
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Does Mondia whitei play a role in the treatment of prostate cancer and benign prostatic hyperplasia?
… with adverse effects such as sexual dysfunction, hormonal imbalance and lower urinary tract symptoms, resulting in a reduced quality of life. This has increased scientific interest in plant-derived therapeutics that are capable of modulating prostate physiology while preserving normal …
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The impact of habitat quality on female red colobus monkey (Procolobus rufomitratus) reproduction
… Uganda. Because energetic constraints impact reproductive function in female primates, this dissertation includes data on feeding ecology, activity budgets, mating behaviors, ketone levels, and reproductive hormone concentrations. This multi-faceted approach tests a model in which habitat …
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A model-based test of the efficacy of a simple rule for predicting adaptive sex allocation
The division of resources between male and female reproductive function is defined as sex allocation. The usefulness of simple rules to predict adaptive sex-allocation decisions has been a contentious topic. Simple rules are difficult to apply when the biological details of the life cycle are …
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Psychological and nutritional factors influencing the dynamics of gonadotrophin secretion in the female rat
… caloric deprivation and stress induction on the reproductive physiology of the female rat of the Long-Evans strain. Its objective was to determine whether the findings of controlled experiments provided support for existing hypotheses about the aetiology of amenorrhoea in anorexia nervosa. The …
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The distribution and speciation of trace elements in bovine ovaries using synchrotron techniques
… have been reported to alter various aspects of reproductive physiology, however, there is an alarming weighting towards studies focusing on their involvement in male reproductive function. Furthermore, those studies which are female focused have a tendency to investigate the role of trace …
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