Zebrafish (Danio rerio) physiological and behavioural responses to insect-based diets: a multidisciplinary approach

Abstract Odorants guide essential activities such as foraging and fleeing predators. Studies usually examine behavioural and physiological effects of individual odorants, while animals in the environment are exposed to multiple stimuli simultaneously. In this study, we exposed zebrafish to a mixture of attraction-evoking and aversion-evoking amino acids, and behavioural responses were observed. Attraction to l-alanine and avoidance to l-cysteine were observed, and so these amino acids were used to make the mixture (zebrafish also avoided l-serine, but this was weaker than with l-cysteine exposures). When exposed to the mixture, fish responded with avoidance, which suggests that aversion-evoking stimuli outweigh attraction-evoking stimuli. Attraction towards the mixture was seen only when the concentration of l-cysteine was decreased from 0.1 to 0.001 mM. Olfactory ablation surgery confirmed that the behaviours were olfactory-mediated. Overall, this study demonstrated that odorant stimuli that repel outweigh stimuli that attract until their concentration decreases by as much as 100-fold.

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Behavioural responses of Danio rerio (zebra fish) exposed to sublethal doses of Azoxystrobin

Adalya Journal ◽

10.37896/aj9.5/060 ◽

2020 ◽

Vol 9 (5) ◽

Keyword(s):

Danio Rerio ◽

Zebra Fish ◽

Behavioural Responses ◽

Sublethal Doses

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Development of optical methods for real-time whole-brain functional imaging of zebrafish neuronal activity

10.36253/978-88-5518-070-2 ◽

2020 ◽

Author(s):

Lapo Turrini

Keyword(s):

Neuronal Activity ◽

Functional Imaging ◽

Danio Rerio ◽

Optical Methods ◽

Behavioural Responses ◽

Non Invasive ◽

Larval Zebrafish ◽

Zebrafish Larvae ◽

Available Technology ◽

The Brain

Each one of us in his life has, at least once, smelled the scent of roses, read one canto of Dante’s Commedia or listened to the sound of the sea from a shell. All of this is possible thanks to the astonishing capabilities of an organ, such as the brain, that allows us to collect and organize perceptions coming from sensory organs and to produce behavioural responses accordingly. Studying an operating brain in a non-invasive way is extremely difficult in mammals, and particularly in humans. In the last decade, a small teleost fish, zebrafish (Danio rerio), has been making its way into the field of neurosciences. The brain of a larval zebrafish is made up of 'only' 100000 neurons and it’s completely transparent, making it possible to optically access it. Here, taking advantage of the best of currently available technology, we devised optical solutions to investigate the dynamics of neuronal activity throughout the entire brain of zebrafish larvae.

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AAC Supports for Individuals With Rett Syndrome Across the Lifespan

Perspectives on Augmentative and Alternative Communication ◽

10.1044/aac24.3.74 ◽

2015 ◽

Vol 24 (3) ◽

pp. 74-85

Author(s):

Sandra M. Grether

Keyword(s):

Rett Syndrome ◽

Communication Skills ◽

Preliminary Analysis ◽

Multidisciplinary Approach ◽

Motor Deficits ◽

Complex Profile ◽

Communication Behaviors ◽

The Individual

Individuals with Rett syndrome (RS) present with a complex profile. They benefit from a multidisciplinary approach for diagnosis, treatment, and follow-up. In our clinic, the Communication Matrix © (Rowland, 1990/1996/2004) is used to collect data about the communication skills and modalities used by those with RS across the lifespan. Preliminary analysis of this data supports the expected changes in communication behaviors as the individual with RS ages and motor deficits have a greater impact.

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Traumatic Brain Injury: A Trauma Surgeon's Perspective

Perspectives on Neurophysiology and Neurogenic Speech and Language Disorders ◽

10.1044/nnsld22.3.82 ◽

2012 ◽

Vol 22 (3) ◽

pp. 82-89

Author(s):

Oscar D. Guillamondegui

Keyword(s):

Traumatic Brain Injury ◽

Brain Injury ◽

Multidisciplinary Approach ◽

Trauma Team ◽

The United States ◽

Long Term Outcomes ◽

Term Care ◽

Injured Brain ◽

The Moment

Traumatic brain injury (TBI) is a serious epidemic in the United States. It affects patients of all ages, race, and socioeconomic status (SES). The current care of these patients typically manifests after sequelae have been identified after discharge from the hospital, long after the inciting event. The purpose of this article is to introduce the concept of identification and management of the TBI patient from the moment of injury through long-term care as a multidisciplinary approach. By promoting an awareness of the issues that develop around the acutely injured brain and linking them to long-term outcomes, the trauma team can initiate care early to alter the effect on the patient, family, and community. Hopefully, by describing the care afforded at a trauma center and by a multidisciplinary team, we can bring a better understanding to the armamentarium of methods utilized to treat the difficult population of TBI patients.

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Percutaneous Tracheostomy: A Multidisciplinary Approach

Perspectives on Voice and Voice Disorders ◽

10.1044/vvd18.2.87 ◽

2008 ◽

Vol 18 (2) ◽

pp. 87-98 ◽

Cited By ~ 3

Author(s):

Vinciya Pandian ◽

Thai Tran Nguyen ◽

Marek Mirski ◽

Nasir Islam Bhatti

Keyword(s):

Health Care ◽

Quality Assurance ◽

Data Collection ◽

Health Care Professionals ◽

Multidisciplinary Approach ◽

Percutaneous Tracheostomy ◽

Johns Hopkins Hospital ◽

Prospective Data ◽

Comprehensive Service ◽

Over Time

Abstract The techniques of performing a tracheostomy has transformed over time. Percutaneous tracheostomy is gaining popularity over open tracheostomy given its advantages and as a result the number of bedside tracheostomies has increased necessitating the need for a Percutaneous Tracheostomy Program. The Percutaneous Tracheostomy Program at the Johns Hopkins Hospital is a comprehensive service that provides care to patients before, during, and after a tracheostomy with a multidisciplinary approach aimed at decreasing complications. Education is provided to patients, families, and health-care professionals who are involved in the management of a tracheostomy. Ongoing prospective data collection serves as a tool for Quality Assurance.

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