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Dataset results
12 results for “reproductive modification”
Improving Reproductive Fitness Through Pretreatment With Lifestyle Modification in Obese Women With Unexplained Infertility
ClinicalTrials.gov study NCT02432209. IPD Sharing: YES. Countries: 1. Publications: 2.
Data from: Modification of reproductive schedule in response to pathogen exposure in a wild insect: support for the terminal investment hypothesis
<p>Trade-offs in the time and energy allocated to different functions, such as reproductive activities, can be driven by alterations in condition which reduce resources, often in response to extrinsic factors such as pathogens or parasites. When individuals are challenged by a pathogen they may either reduce reproduction as a cost of increasing defence mechanisms, or alternatively, modify reproductive activities so as to increase fecundity thereby minimizing the fitness costs of earlier death, a behaviour consistent with the terminal investment hypothesis (TIH). The TIH predicts that individuals with decreased likelihood of future reproduction will maximize current reproductive effort, which may include shifts in reproductive timing. We examined how wild, adult female click beetles <i>(Agriotes obscurus) </i>responded after exposure to the fungal pathogen<i>Metarhizium brunneum</i>. Field-collected beetles exposed to a high concentration of <i>M. brunneum </i>died earlier and in greater numbers than those exposed to a low concentration. Using a multi-variate approach we examined the impact of pathogen challenge on lifespan and a suite of reproductive traits. Stepdown regression analysis showed that only female lifespan differed among the fungal treatments. Fungal-induced reductions in lifespan drove changes in the reproductive schedule, characterized by a decrease in preoviposition period. Moving the start of egg laying forward allowed the females to offset the costs of a shortened lifespan. These changes suggest that there is a threshold for terminal investment which is dependent on strength of the survival threat. From an applied perspective, our findings imply that exposing adult click beetles to <i>M. brunneum </i>to reduce their population densitymight not succeed and is an approach that needs further investigation.</p>
Se reproduire dans des climats changeants : déterminants et conséquences des modifications de la phénologie de la reproduction chez un reptile vivipare
<p><span>Les modifications des conditions thermiques diurnes et nocturnes induites par le changement climatique peuvent affecter les organismes par une perturbation des processus physiologiques, des traits fonctionnels, des stratégies de reproduction et des traits d'histoire de la vie. Les changements phénologiques constituent l’une des principales réponses au changement climatique chez de nombreux organismes et ont des conséquences majeures sur le succès reproductif des individus. Chez les ectothermes, les changements des dates de reproduction sont particulièrement marqués compte tenu des effets thermodynamiques sur les processus physiologiques et le cycle reproductif. Cette thèse vise à explorer les effets du climat et de la phénologie de la reproduction sur les traits physiologiques, comportementaux, reproductifs et les traits d’histoire de vie des femelles et de leur progéniture chez un ectotherme terrestre, le lézard vivipare (<em>Zootoca vivipara</em>). Nous avons utilisé une approche intégrative combinant des études transversales et longitudinales afin d’explorer les déterminants environnementaux, individuels et la sélection sur les dates de parturition en milieu naturel ainsi que des études expérimentales pour quantifier les bénéfices et les coûts de la plasticité thermique de la gestation en laboratoire. Les températures maximales journalières durant la période d’activité post-hivernale, la couverture forestière et la taille corporelle étaient des déterminants importants des dates de parturition. Nos résultats mettent en évidence une sélection directionnelle favorisant une date de parturition précoce, mais une faible capacité de réponse évolutive de ce trait à la sélection. Enfin, l’accélération thermique de la gestation induite par le réchauffement diurne et/ou nocturne altère l’homéostasie maternelle, mais une date de naissance plus précoce a des effets positifs sur la survie et la croissance de la progéniture. Dans l’ensemble, nos résultats suggèrent que l’étude des conséquences des changements phénologiques chez les squamates doit se concentrer sur les limites et la balance coût-bénéfice de la plasticité thermique des dates de reproduction. Nous soulignons également l’importance de considérer le réchauffement nocturne, les ajustements physiologiques et comportementaux pour y faire face, ainsi que l’importance de la structure de l’habitat pour comprendre et prédire les réponses des ectothermes terrestres face au changement climatique.</span></p>
Effect of Modifications of Nutritional Intake Upon Reproductive Hormones in Normal Women
ClinicalTrials.gov study NCT02233283. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Data from: Modification of reproductive schedule in response to pathogen exposure in a wild insect: support for the terminal investment hypothesis
Open the record for dataset details and reuse information.
Analysis of cell-type-specific chromatin modifications and gene expression in Drosophila neurons that direct reproductive behavior
GEO Series GSE153901. Drosophila melanogaster. 250 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
Analysis of cell-type-specific chromatin modifications and gene expression in Drosophila neurons that direct reproductive behavior [TRAP II]
GEO Series GSE153900. Drosophila melanogaster. 16 samples. Type: Expression profiling by high throughput sequencing.
Analysis of cell-type-specific chromatin modifications and gene expression in Drosophila neurons that direct reproductive behavior [TRAP I]
GEO Series GSE153899. Drosophila melanogaster. 18 samples. Type: Expression profiling by high throughput sequencing.
Analysis of cell-type-specific chromatin modifications and gene expression in Drosophila neurons that direct reproductive behavior [ChIP]
GEO Series GSE154034. Drosophila melanogaster. 216 samples. Type: Genome binding/occupancy profiling by high throughput sequencing.
Ectopic application of the repressive histone modification H3K9me2 establishes postzygotic reproductive isolation in Arabidopsis thaliana
GEO Series GSE100011. Arabidopsis thaliana. 60 samples. Type: Genome binding/occupancy profiling by high throughput sequencing; Methylation profiling by high throughput sequencing.
m6A RNA modification controls reproductive development and metabolic adaptation in the human parasite Schistosoma japonicum [m6a-seq]
GEO Series GSE306705. Schistosoma japonicum. 18 samples. Type: Other.
m6A RNA modification controls reproductive development and metabolic adaptation in the human parasite Schistosoma japonicum [RNA-seq]
GEO Series GSE306704. Schistosoma japonicum. 4 samples. Type: Expression profiling by high throughput sequencing.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.