physiological effects Articles
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Physiological effect of anatase TiO2 nanoparticles on Lemna minor
Manufactured metal oxide nanoparticles (NPs) are being used on a large scale, and these particles will inevitably reach a body of water through wastewater and urban runoff. The ecotoxicological study of these NPs on hydrophyte is limited at present. Lemna minor was exposed to media with different concentrations of titanium dioxide (TiO2) NPs or bulk TiO2 for 7 d. The changes in plant growth, ...
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Physiological effects of essential metals on two detritivores: Atyaephyra desmarestii (Millet) and Echinogammarus meridionalis (Pinkster)
Freshwater ecosystems are essential for humans, however the input of several types of contamination lead to the degradation of these ecosystems. Thus, it is urgent to assess their health in order to allow actions for prevention and remediation. The level of trace metals can be enhanced due to natural or anthropogenic sources. Essential metals, like copper and zinc, become toxic when are ...
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Physiological effects and reduced tolerance following maternal metal exposure in the live‐bearing fish Gambusia affinis
This study assessed the effects of maternal copper or cadmium exposure in a live‐bearing fish. After a 10‐day exposure to background levels (control) or 0.15 µM copper or cadmium, we transferred gravid females to clean water. Once a female gave birth, we analyzed her newborn offspring for lipid peroxidation, elemental composition (copper, cadmium, and calcium), and metal tolerance. We raised ...
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Organophosphate pesticides induce morphological abnormalities and decreased locomotor activity and heart rate in Danio rerio and Xenopus laevis
Organophosphate pesticides (OPs), a class of acetylcholinesterase inhibitors, are widely used in agriculture to reduce insect populations. Due to the conservation of acetylcholinesterase between invertebrates and vertebrates, OPs can also adversely affect non‐target species, such as aquatic and terrestrial animals. This study used uniform conditions to analyze the morphological and ...
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Study: Stem Cells and Air Quality
A recent study conducted by researchers at the State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences China, Chinese Academy of Sciences (CAS), and the University of California at San Diego (UCSD) were successful in using stem cells to determine the amount of BPA that caused physiological toxic effects. The group of researchers are ...
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Ecotoxicological evaluation of low‐concentration bisphenol A exposure on the soil nematode Caenorhabditis elegans and intrinsic mechanisms of stress response in vivo
As a representative species of nematodes, Caenorhabditis elegans is an attractive animal model for evaluating ecotoxicological effects and intrinsic mechanisms of stress response in vivo. To acquire a better knowledge of environmental effects of bisphenol A (BPA), ecotoxicological evaluations were conducted using C. elegans upon the physiological (growth, locomotion behaviors, and ...
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Hydration status and physiological workload of UAE construction workers: A prospective longitudinal observational study
Abstract Background: The objective of the study was to investigate the physiological responses of construction workers labouring in thermally stressful environments in the UAE using Thermal Work Limit (TWL) as a method of environmental risk assessment. Methods: The study was undertaken in May 2006. Aural temperature, fluid intake, and urine specific gravity were recorded and continuous heart ...
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Perfluorinated compound concentrations in great blue herons eggs near St. Paul, Minnesota, USA in 1993 and 2010–2011
A great blue heron (Ardea herodias) colony on Pig's Eye Island on the Mississippi River near St. Paul, Minnesota, USA, is located near several potential perfluorinated compound (PFC) sources. The PFC concentrations in great blue heron eggs reported from a 1993 collection from the Pig's Eye colony were among the highest measured in bird eggs worldwide. The objective of this investigation was to ...
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Dietary fibre and human health
Food habits of new lifestyle have contributed to the appearance of chronic diseases such as obesity or cardiovascular diseases, which are mainly due to bad eating habits. Solutions can be found in providing the consumers with functional foods and health capability. Such food is rich in dietary fibre, with specific physicochemical behaviour and healthy properties. Dietary fibre rich food products ...
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Effects of atrazine on endocrinology and physiology in juvenile barramundi, Lates calcarifer (Bloch)
Exposure to certain environmental contaminants such as agricultural pesticides can alter normal endocrine and reproductive parameters in wild fish populations. Recent studies have found widespread pesticide contamination across the rivers that discharge into the Great Barrier Reef lagoon. Potential impacts on native fish species exposed to known endocrine disrupting chemicals such as atrazine, ...
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Integrated coastal effects study: Synthesis of findings
Municipal wastewater discharges constitute a major source of contaminants of emerging concern (CECs) to coastal waters, yet is uncertainty exists regarding their linkage to adverse biological effects such as endocrine disruption. Limited information is available concerning the types and fate of CECs discharged to the Southern California Bight (SCB) from municipal wastewater and their potential ...
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Exploring the Multifaceted Applications of Ox Bile Extract Powder
Introduction: Ox bile extract powder, derived from ox bile, is a natural product with a wide range of applications. It contains essential components such as bile acids, cholesterol, bilirubin, and fatty acids. Through meticulous preparation processes, it is transformed into a powdered form, enhancing its stability and convenience. Ox bile extract powder exhibits diverse applications in the fields ...
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Arrhythmia - Atrial Fibrillation (AF)- Case Study
Atrial Fibrillation (AF) is often described as an irregularly irregular rhythm. AF is an arrhythmia with no consistent ventricular response or pattern due to its somewhat random and chaotic discharging of atrial impulses firing disconnectedly from multiple foci. This continuous and erratic behavior results in a ventricular response that changes from beat to beat. AF will typically present with a ...
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Why corrections officers need to pay extra attention to incoming mail
Contraband smuggling in correctional facilities was already on the rise before the coronavirus pandemic, and would-be smugglers continue to develop new means of concealment. This evolving challenge to safety inside jails and prisons has intensified in the past year, and due to the lockdowns to combat the spread of the COVID-19 virus, postal mail has become a favored conduit for contraband drugs. ...
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NASA Studies - PEMF technology
The PEMF technology has been studied by NASA in a four-year, $3.5 million study, with very positive ...
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A Closer Look at Metabolic Disease Models and Diabetes Models
Diabetes, specifically Type 1 and Type 2 Diabetes Mellitus, remains one of the most commonly encountered metabolic diseases worldwide. The complexity and diversity of these conditions necessitate the development of detailed medical models for a comprehensive understanding of the diseases. Over time, Type 1 and Type 2 Diabetes Mellitus Models, Metabolic Disease Models, and generalized Diabetes ...
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Protein-Protein Interaction Identification Method—Co-immunoprecipitation (Co-IP) and Pull-Down
Proteins control all biological systems in the cell. Although many proteins function independently, most proteins need to interact with other proteins to maintain complete biological activity. Therefore, in order to better understand the function and biological characteristics of intracellular proteins, researchers often need to identify and analyze protein-protein interactions. ...
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Conceptual Considerations for Device-Based Therapy in Acute Decompensated Heart Failure
Abstract Acute decompensated heart failure remains the most common cause of hospitalization in older adults, and studies of pharmacological therapies have yielded limited progress in improving outcomes for these patients. This has prompted the development of novel device–based interventions, classified mechanistically based on the way in which they intend to improve central hemodynamics, ...
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Evaluating Microbiome Therapies with Intestinal Cell Models
The microbiome has been shown to play roles in many different disease processes and is implicated in many more, from infectious and gastrointestinal diseases to autoimmune and neurological disorders. Advanced models of the gut leveraging intestinal and colonic stem cells are enabling the development of more reliable and robust systems for evaluating the impact of changes in the microbiome on gut ...
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