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Articles 1 - 24 of 24
Full-Text Articles in Life Sciences
Physiological And Behavioural Evaluation Of Common Anaesthesia Practices In The Rainbow Trout, Kieran C. Pounder, Jennifer L. Mitchell, Jack S. Thomson, Tom G. Pottinger, Lynne U. Sneddon
Physiological And Behavioural Evaluation Of Common Anaesthesia Practices In The Rainbow Trout, Kieran C. Pounder, Jennifer L. Mitchell, Jack S. Thomson, Tom G. Pottinger, Lynne U. Sneddon
Lynne Sneddon, PhD
Anaesthetic drugs are commonly administered to fish in aquaculture, research and veterinary contexts. Anaesthesia causes temporary absence of consciousness and may reduce the stress and/or pain associated with handling and certain invasive procedures. The rainbow trout (Oncorhynchus mykiss) is a widely-used model species with relevance to both aquaculture and natural ecosystems. This study sought to establish the relative acute impact of commonly used anaesthetics on rainbow trout when used for anaesthesia or euthanasia by exploring their effects on aversion behaviour and stress physiology. Five widely used anaesthetics were investigated at two concentrations reflective of common laboratory practises: MS-222, benzocaine, 2-phenoxyethanol, …
Does Environmental Enrichment Promote Recovery From Stress In Rainbow Trout?, Kieran C. Pounder, Jennifer L. Mitchell, Jack S. Thomson, Tom G. Pottinger, Jonathan Buckley, Lynne U. Sneddon
Does Environmental Enrichment Promote Recovery From Stress In Rainbow Trout?, Kieran C. Pounder, Jennifer L. Mitchell, Jack S. Thomson, Tom G. Pottinger, Jonathan Buckley, Lynne U. Sneddon
Lynne Sneddon, PhD
The EU Directive on animal experimentation suggests that all protected animals should have enrichment to improve welfare yet relatively little research has been conducted on the impact of enrichment in fish. Studies employing enrichment in zebrafish have been contradictory and all fish species should be provided with species-specific enrichments relevant to their ecology. Salmonids are important experimental models in studies within aquaculture, toxicology and natural ecosystems. This study therefore sought to establish whether an enriched environment in an experimental aquarium may promote improved welfare in rainbow trout (Oncorhynchus mykiss) by enhancing their recovery from invasive procedures. Trout were …
A Clade-Specific Arabidopsis Gene Connects Primary Metabolism And Senescence, Dallas C. Jones, Wenguang Zheng, Sheng Huang, Chuanlong Du, Xuefeng Zhao, Ragothaman M. Yennamalli, Taner Z. Sen, Dan Nettleton, Eve S. Wurtele, Ling Li
A Clade-Specific Arabidopsis Gene Connects Primary Metabolism And Senescence, Dallas C. Jones, Wenguang Zheng, Sheng Huang, Chuanlong Du, Xuefeng Zhao, Ragothaman M. Yennamalli, Taner Z. Sen, Dan Nettleton, Eve S. Wurtele, Ling Li
Dan Nettleton
Nearly immobile, plants have evolved new components to be able to respond to changing environments. One example is Qua Quine Starch (QQS, AT3G30720), an Arabidopsis thaliana-specific orphan gene that integrates primary metabolism with adaptation to environment changes. SAQR (Senescence-Associated and QQS-Related, AT1G64360), is unique to a clade within the family Brassicaceae; as such, the gene may have arisen about 20 million years ago. SAQR is up-regulated in QQS RNAi mutant and in the apx1 mutant under light-induced oxidative stress. SAQR plays a role in carbon allocation: overexpression lines of SAQR have significantly decreased starch content; …
Vocal Expression Of Emotions In Mammals: Mechanisms Of Production And Evidence, Elodie Briefer
Vocal Expression Of Emotions In Mammals: Mechanisms Of Production And Evidence, Elodie Briefer
Elodie Briefer, PhD
Emotions play a crucial role in an animal’s life because they facilitate responses to external or internal events of significance for the organism. In social species, one of the main functions of emotional expression is to regulate social interactions. There has recently been a surge of interest in animal emotions in several disciplines, ranging from neuroscience to evolutionary zoology. Because measurements of subjective emotional experiences are not possible in animals, researchers use neurophysiological, behavioural and cognitive indicators. However, good indicators, particularly of positive emotions, are still lacking. Vocalizations are linked to the inner state of the caller. The emotional state …
Ethyleneproduction As An Indicator Of Stress Conditions In Hydroponically-Grown Strawberries, Justin D. Hogan, Elizabeth E. Murray, Marcia Harrison-Pitaniello Phd
Ethyleneproduction As An Indicator Of Stress Conditions In Hydroponically-Grown Strawberries, Justin D. Hogan, Elizabeth E. Murray, Marcia Harrison-Pitaniello Phd
Marcia Harrison-Pitaniello
As a soilless system, hydroponics eliminates competing weeds and soil-born pests while conserving water and providing conditions that can be quickly altered to suit specific crops. However, stress-induced physiological conditions may arise within the system from factors such as mechanical injury, pests, or inconsistent nutrient flow rates that result in some plants receiving too much or too little water. Most abiotic stress conditions result in increased production of the plant hormone ethylene. High levels of ethylene inhibit growth, cause premature ripening, and induce the onset of senescence, potentially reducing the productivity of hydroponically-grown crops. In this study, we demonstrate that …
Dynamic Status Signal Reflects Outcome Of Social Interactions, But Not Energetic Stress, Keith A. Tarvin, L Jin Wong, David C. Lumpkin, Gabrielle M. Schroeder, Dominic D'Andrea, Sophie Meade, Pearl Rivers, Troy G. Murphy
Dynamic Status Signal Reflects Outcome Of Social Interactions, But Not Energetic Stress, Keith A. Tarvin, L Jin Wong, David C. Lumpkin, Gabrielle M. Schroeder, Dominic D'Andrea, Sophie Meade, Pearl Rivers, Troy G. Murphy
Troy G Murphy
Social defeat induces stress-responses in a wide array of vertebrates and can generate winner-loser effects. Dynamic condition-dependent signaling systems that reflect preparation for subsequent agonistic interactions, and thereby mediate winner-loser effects, should be more sensitive to competitive history than to non-social sources of stress. Bill color of female American goldfinches (Spinus tristus) is a dynamic condition-dependent ornament that functions as a signal of competitive status and mediates intrasexual agonistic social interactions. We tested the “social experience signaling hypothesis” in female goldfinches by (1) manipulating a non-social energetic stressor by experimentally elevating flight costs via wing-clipping in free-ranging birds, …
Flooring And Driving Conditions During Road Transport Influence The Behavioural Expression Of Cattle, Catherine A. Stockman, Teresa Collins, Anne L. Barnes, David Miller, Sarah L. Wickham, David T. Beatty, Dominique Blache, Françoise Wemelsfelder, Patricia A. Fleming
Flooring And Driving Conditions During Road Transport Influence The Behavioural Expression Of Cattle, Catherine A. Stockman, Teresa Collins, Anne L. Barnes, David Miller, Sarah L. Wickham, David T. Beatty, Dominique Blache, Françoise Wemelsfelder, Patricia A. Fleming
Françoise Wemelsfelder, PhD
This study examined whether observers could distinguish between cattle that were exposed to various road transport conditions: Experiment 1 compared a manipulated flooring treatment (non-grip flooring, NG) with a control transport event (grip flooring, G) and Experiment 2 compared a manipulated driving style (stop-start driving, SS) with a control transport event of smooth, continuous (C) driving. The behavioural expression of cattle was assessed through the process of Qualitative Behavioural Assessment (QBA), and these assessments were tested for correlation with various physiological parameters. Fourteen Angus steers were assessed. Blood samples were collected immediately before and after transport, and heart rate and …
Qualitative Behavioural Assessment And Quantitative Physiological Measurement Of Cattle Naïve And Habituated To Road Transport, C. A. Stockman, T. Collins, A. L. Barnes, D. Miller, S. L. Wickham, D. T. Beatty, D. Blache, F. Wemelsfelder, P. A. Fleming
Qualitative Behavioural Assessment And Quantitative Physiological Measurement Of Cattle Naïve And Habituated To Road Transport, C. A. Stockman, T. Collins, A. L. Barnes, D. Miller, S. L. Wickham, D. T. Beatty, D. Blache, F. Wemelsfelder, P. A. Fleming
Françoise Wemelsfelder, PhD
The present study examined whether observers could distinguish between cattle that are naïve to road transport and the same cattle after becoming more habituated to transport. The behavioural expression of cattle was assessed through the method of qualitative behavioural assessment (QBA), and these assessments were correlated with various physiological parameters. Fourteen Angus steers were assessed during their first road trip and then again on their ninth trip, 15 days later. Blood samples were collected immediately before and after transport, and heart rate and core body temperature were measured continuously throughout each trip. Video footage recorded during each trip was edited …
The Effects Of Home-Based Pilates In Healthy College-Age Females, Betsy Donahoe-Fillmore, Mary Fisher, C. Brahler
The Effects Of Home-Based Pilates In Healthy College-Age Females, Betsy Donahoe-Fillmore, Mary Fisher, C. Brahler
C. Jayne Brahler
Objectives: To quantify and determine the effects of Pilates on core endurance, hamstring flexibility, balance, body composition/mass and perceived stress level in healthy college age females.
Study Design: Randomized controlled trial design.
Background: Emerging research on the Pilates technique is inconclusive regarding benefits to core endurance, flexibility, balance, body mass, and perceived stress.
Methods and Measures: Female college students (n=57; 18-35 years old) were randomly assigned to a Pilates group, who exercised at home with a DVD, or a control group who did not engage in Pilates practice. Core endurance, hamstring flexibility, balance, body composition and stress measurements were taken …
The Importance Of Managing Psychosocial Health: A Case Study, Mary Insana Fisher, Harold L. Merriman
The Importance Of Managing Psychosocial Health: A Case Study, Mary Insana Fisher, Harold L. Merriman
Mary Insana Fisher
Managing the physical aspects of lymphedema requires an individual to be committed to daily treatment of this chronic condition. Performing manual lymph drainage, using compression bandaging or compression garments, exercising, and caring for the skin all take time and a high level of dedication. This commitment to self-care can be emotionally and psychologically exhausting. When coupled with other emotional stressors in a patient’s life, successful treatment of lymphedema is challenging. We present a case demonstrating how the physical and psychological aspects of care interplay, and, when well-managed, can positively affect the outcome.
The Effects Of Home-Based Pilates In Healthy College-Age Females, Betsy Donahoe-Fillmore, Mary Insana Fisher, C. Jayne Brahler
The Effects Of Home-Based Pilates In Healthy College-Age Females, Betsy Donahoe-Fillmore, Mary Insana Fisher, C. Jayne Brahler
Betsy Donahoe-Fillmore
Objectives: To quantify and determine the effects of Pilates on core endurance, hamstring flexibility, balance, body composition/mass and perceived stress level in healthy college age females. Study Design: Randomized controlled trial design. Background: Emerging research on the Pilates technique is inconclusive regarding benefits to core endurance, flexibility, balance, body mass, and perceived stress. Methods and Measures: Female college students (n=57; 18-35 years old) were randomly assigned to a Pilates group, who exercised at home with a DVD, or a control group who did not engage in Pilates practice. Core endurance, hamstring flexibility, balance, body composition and stress measurements were taken …
Disadvantages Of Being An Individualist In An Individualistic Culture: Idiocentrism, Emotional Competence, Stress, And Mental Health, Gregory Scott, Joseph Ciarrochi, Frank Deane
Disadvantages Of Being An Individualist In An Individualistic Culture: Idiocentrism, Emotional Competence, Stress, And Mental Health, Gregory Scott, Joseph Ciarrochi, Frank Deane
joseph Ciarrochi
Based on past cross-cultural research, it was hypothesised that people who had strong individualistic values and beliefs within an individualistic culture would have smaller social support networks, lower emotional competence, lower intentions to seek help from a variety of sources, and poorer mental health. A total of 276 first-year students attending an Australian university completed an anonymous survey assessing individual differences in individualism (i.e., idiocentrism), social support, emotional competence, hopelessness, depression, and suicide ideation. As expected, idiocentrism was associated with smaller and less satisfying social support networks, less skill in managing both self and others' emotions, lower intentions to seek …
Emotional Intelligence Moderates The Relationship Between Stress And Mental Health, Joseph Ciarrochi, Frank Deane, Stephen Anderson
Emotional Intelligence Moderates The Relationship Between Stress And Mental Health, Joseph Ciarrochi, Frank Deane, Stephen Anderson
joseph Ciarrochi
Despite a great deal of popular interest and the development of numerous training programs in emotional intelligence (EI), some researchers have argued that there is little evidence that EI is both useful and different from other, well established constructs. We hypothesized that EI would make a unique contribution to understanding the relationship between stress and three important mental health variables, depression, hopelessness, and suicidal ideation. University students (n=302) participated in a cross-sectional study that involved measuring life stress, objective and self-reported emotional intelligence, and mental health. Regression analyses revealed that stress was associated with: (1) greater reported depression, hopelessness, and …
The Importance Of Managing Psychosocial Health: A Case Study, Mary Insana Fisher, Harold L. Merriman
The Importance Of Managing Psychosocial Health: A Case Study, Mary Insana Fisher, Harold L. Merriman
Harold L. Merriman
Managing the physical aspects of lymphedema requires an individual to be committed to daily treatment of this chronic condition. Performing manual lymph drainage, using compression bandaging or compression garments, exercising, and caring for the skin all take time and a high level of dedication. This commitment to self-care can be emotionally and psychologically exhausting. When coupled with other emotional stressors in a patient’s life, successful treatment of lymphedema is challenging. We present a case demonstrating how the physical and psychological aspects of care interplay, and, when well-managed, can positively affect the outcome.
Effect Of Environmental Factors On Whole Plant Assimilate Partitioning And Associated Gene Expression, Donald Geiger, K. Koch, Wen-Jang Shieh
Effect Of Environmental Factors On Whole Plant Assimilate Partitioning And Associated Gene Expression, Donald Geiger, K. Koch, Wen-Jang Shieh
Donald R. Geiger
Partitioning of assimilated carbon among sink organs is a critical factor that controls the rate and pattern of plant growth. Time-course measurements of plant and organ growth rates are useful for determining how regulation of carbon partitioning controls plantgrowth. Measuring growth rates over a 24 h period reveals the current pattern of carbon partitioning that can be used to predict growth ratesof specific sinks. Comparison of growth rates among sinks under defined conditions can point out key factors that regulate partitioning ofrecently assimilated carbon among sinks. Internal control of carbonpartitioning by developmental programmes regulates the timing andsite of carbon distribution …
Laboratory Routines Cause Animal Stress, Jonathan P. Balcombe, Neal D. Barnard, Chad Sandusky
Laboratory Routines Cause Animal Stress, Jonathan P. Balcombe, Neal D. Barnard, Chad Sandusky
Jonathan Balcombe, PhD
Eighty published studies were appraised to document the potential stress associated with three routine laboratory procedures commonly performed on animals: handling, blood collection, and orogastric gavage. We defined handling as any non-invasive manipulation occurring as part of routine husbandry, including lifting an animal and cleaning or moving an animal's cage. Significant changes in physiologic parameters correlated with stress (e.g., serum or plasma concentrations of corticosterone, glucose, growth hormone or prolactin, heart rate, blood pressure, and behavior) were associated with all three procedures in multiple species in the studies we examined. The results of these studies demonstrated that animals responded with …
Contribution Of Autosomal Loci And The Y Chromosome To The Stress Response In Rats, Pierre Dumas, Zdenka Pausova, Vladimir Kren, Drahomira Krenova, Michal Pravenec, Marc Dumont, Daniel Ely, Monte E. Turner, Yulin Sun, Johanne Tremblay, Pavel Hamet
Contribution Of Autosomal Loci And The Y Chromosome To The Stress Response In Rats, Pierre Dumas, Zdenka Pausova, Vladimir Kren, Drahomira Krenova, Michal Pravenec, Marc Dumont, Daniel Ely, Monte E. Turner, Yulin Sun, Johanne Tremblay, Pavel Hamet
Monte E. Turner
Stress is a critical contributor to cardiovascular diseases through its impact on blood pressure variability and cardiac function. Familial clustering of reactivity to stress has been demonstrated in human subjects, and some rodent models of hypertension are hyperresponsive to stress. Therefore, the present study was designed to uncover the genetic determinants of the stress response. We performed a total genome linkage search to identify the loci of the body temperature response to immobilization stress in a set of recombinant inbred strains (RIS) originating from reciprocal crosses of spontaneously hypertensive rats (SHR) with a normotensive Brown Norway Lx strain. Two quantitative …
Stress-Induced Retrotranslocation Of Clusterin/Apoj Into The Cytosol, P Nizard, Suzanne Tetley, Y Le Drean, T Watrin, P Le Goff, Mark R. Wilson, Denis Michel
Stress-Induced Retrotranslocation Of Clusterin/Apoj Into The Cytosol, P Nizard, Suzanne Tetley, Y Le Drean, T Watrin, P Le Goff, Mark R. Wilson, Denis Michel
Mark R Wilson
Clusterin is a usually secreted glycoprotein with chaperone properties. Recently, it has been suggested that clusterin isoforms reside in the nuclear and cytosolic compartments of human cell types, where they can influence various cellular programs including DNA repair, transcription and apoptosis. Several mechanisms have been proposed to explain this atypical location, including alternative transcription initiation and alternative splicing. However none of these have been unequivocally established as occurring in live cells. Here we provide direct experimental evidence that in live intact cells, under certain stress conditions, clusterin can evade the secretion pathway and reach the cytosol. This was demonstrated using …
Effects Of Dietary Supplementation Of The Acidifier Vitoxal-Mionix On Growth, Survival, Immune Response And Gut Microbiota Of The Pacific White Shrimp, Litopenaeus Vannamei, Ahmed Mustafa, Davies Anuta, Alehandro Buentello, Susmita Patnaik, Addison Lawrence, Michaele Hume, Delbert Gatlin, Maurice Kemp
Effects Of Dietary Supplementation Of The Acidifier Vitoxal-Mionix On Growth, Survival, Immune Response And Gut Microbiota Of The Pacific White Shrimp, Litopenaeus Vannamei, Ahmed Mustafa, Davies Anuta, Alehandro Buentello, Susmita Patnaik, Addison Lawrence, Michaele Hume, Delbert Gatlin, Maurice Kemp
Ahmed Mustafa Dr.
No abstract provided.
Feasibility Of Farming Nile Tilapia, Oreochromis Niloticus (L.), In Suboptimal Water Temperature, Ahmed Mustafa, Laura Randolph, Shree Dhawale
Feasibility Of Farming Nile Tilapia, Oreochromis Niloticus (L.), In Suboptimal Water Temperature, Ahmed Mustafa, Laura Randolph, Shree Dhawale
Ahmed Mustafa Dr.
No abstract provided.
Effects Of Indian Herbs On The Modulation Of Stress And Immune Response In Tilapia, Ahmed Mustafa, Brittany Byerley, Paul Mccain
Effects Of Indian Herbs On The Modulation Of Stress And Immune Response In Tilapia, Ahmed Mustafa, Brittany Byerley, Paul Mccain
Ahmed Mustafa Dr.
No abstract provided.
A Role For The Forebrain In Mediating Time-Of-Day Differences In Glucocorticoid Counterregulatory Responses To Hypoglycemia In Rats, Lori M. Gorton, Arshad M. Khan, Maryann Bohland, Graciela Sanchez-Watts, Casey M. Donovan, Alan G. Watts
A Role For The Forebrain In Mediating Time-Of-Day Differences In Glucocorticoid Counterregulatory Responses To Hypoglycemia In Rats, Lori M. Gorton, Arshad M. Khan, Maryann Bohland, Graciela Sanchez-Watts, Casey M. Donovan, Alan G. Watts
Arshad M. Khan, Ph.D.
No abstract provided.
Intravenous 2-Deoxy-D-Glucose Injection Rapidly Elevates Levels Of The Phosphorylated Forms Of P44/42 Mitogen-Activated Protein Kinases (Extracellularly Regulated Kinases 1/2) In Rat Hypothalamic Parvicellular Paraventricular Neurons, Arshad Khan, Alan G. Watts
Intravenous 2-Deoxy-D-Glucose Injection Rapidly Elevates Levels Of The Phosphorylated Forms Of P44/42 Mitogen-Activated Protein Kinases (Extracellularly Regulated Kinases 1/2) In Rat Hypothalamic Parvicellular Paraventricular Neurons, Arshad Khan, Alan G. Watts
Arshad M. Khan, Ph.D.
No abstract provided.
Iodinated Feed Reduces Stress In Steelhead Trout., Ahmed Mustafa
Iodinated Feed Reduces Stress In Steelhead Trout., Ahmed Mustafa
Ahmed Mustafa Dr.
No abstract provided.