Browsing Biology by Title
Now showing items 821-840 of 1310
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Nicotine Controlof Germline Cell Fate in Caenorhabditis elegans
(2015-05)Nicotine dependence is the single largest cause of preventable death in the world, claiming 480,000 lives each year in the US alone, including those caused by secondhand smoke. In this study, we investigated the biological ... -
Nicotine exposure and transgenerational impact: a prospective study on small regulatory microRNAs
(2014-12-17)Early developmental stages are highly sensitive to stress and it has been reported that pre-conditioning with tobacco smoking during adolescence predisposes those youngsters to become smokers as adults. However, the molecular ... -
Nicotine exposure caused significant transgenerational heritable behavioral changes in Caenorhabditis elegans
(2013-09)Passive and active exposure to tobacco smoking among youth is directly associated with immediate as well as long-term health deterioration. Despite all public health policies and efforts, the percentage of teenage smokers ... -
Non-Linear Interactions between Consumers and Flow Determine the Probability of Plant Community Dominance on Maine Rocky Shores
(2013)Although consumers can strongly influence community recovery from disturbance, few studies have explored the effects of consumer identity and density and how they may vary across abiotic gradients. On rocky shores in Maine, ... -
Nonconsumptive effects in a multiple predator system reduce the foraging efficiency of a keystone predator
(2013-09)Many studies have demonstrated that the nonconsumptive effect (NCE) of predators on prey traits can alter prey demographics in ways that are just as strong as the consumptive effect (CE) of predators. Less well studied, ... -
De Novo Transcriptome Assembly and Comparative Analysis Elucidate Complicated Mechanism Regulating Astragalus chrysochlorus Response to Selenium Stimuli
(2015-10)Astragalus species are medicinal plants that are used in the world for years. Some Astragalus species are known for selenium accumulation and tolerance and one of them is Astragalus chrysochlorus, a secondary selenium ... -
NR5A family member ftz-f1 is necessary to promote oocyte development
(East Carolina University, 2019-07-15)Gamete production in mammals and insects is intimately tied to nutrition status. Conversion of nutritionally-dependent physiological signals to molecular mechanisms underlying control of oogenesis, however, remains largely ... -
Nuclear Progesterone Receptors Are Up-Regulated by Estrogens in Neurons and Radial Glial Progenitors in the Brain of Zebrafish
(2011)Abstract In rodents, there is increasing evidence that nuclear progesterone receptors are transiently expressed in many regions of the developing brain, notably outside the hypothalamus. This suggests that progesterone ... -
Nuclear Progestin Receptor (Pgr) Knockouts in Zebrafish Demonstrate Role for Pgr in Ovulation but Not in Rapid Non-Genomic Steroid Mediated Meiosis Resumption
(2015-03)Progestins, progesterone derivatives, are the most critical signaling steroid for initiating final oocyte maturation (FOM) and ovulation, in order to advance fully-grown immature oocytes to become fertilizable eggs in basal ... -
Nutrient contributions from septic systems in nutrient-sensitive watersheds: Quantifying nutrient inputs, reduction methods, and economic feasibility
(East Carolina University, 2019-04-30)Eutrophication of surface waters is a global issue threatening aquatic ecosystems and recreational opportunities. Nutrient management strategies exist to reduce nutrient inputs from various sources; however, septic systems ...