ICBAS - Instituto de Ciências Biomédicas Abel Salazar
One Health

Month: August 2021

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Research

BeachSafe Project: Is a microbiologically safe beach really safe?

Beachsafe praias microbiologicamente seguras
One Health Water quality beach

In Europe, the quality of bathing water is regulated by a directive (from 2005) through two bacterial indicators: Escherichia coli and intestinal enterococci, signs of fecal contamination. However, ongoing climate change promotes the emergence of other pathogenic bacteria not related to sewage. Among them, the vibrios, ubiquitous aquatic microorganisms responsible for various human diseases, such as cholera, sepsis, or hemorrhage.

As part of the BeachSafe project, a study carried out by the ICBAS Laboratory of Hydrobiology and Ecology, which analyzed the water of 10 popular coastal beaches in northern Portugal, revealed that most have low levels of fecal contamination, but a high number of different species of vibrios, especially during the summer bathing season.

This means that bathers are exposed to emerging pathogenic bacteria not screened during official routine bathing water quality surveys. Causes of these appear to be climate change and poorly treated wastewater discharges that help to spread these bacteria.

Currently, the risks for people are still little known and the project is working to find out the implications.

To know more:

– BeachSafe project description do projeto BeachSafe
– Vibrio dynamics in bathing water and associated human health risk

Contact: Professor Adriano A. Bordalo (bordalo@icbas.up.pt)

Categories
Research

Sustainable aquaculture and functional diets for fish

A aquacultura é o setor da produção animal com maior crescimento global
One Health aquaculture

Aquaculture is the fastest-growing global animal production sector, already contributing to more than 50% of the fish consumed worldwide. This growth will continue due to limitations in the capture of wild species and the increase in world population and consequent increase in demand.

Portugal already imports about 2/3 of the fish it consumes, which represents an imbalance in the trade balance of over €600 million/year. This imbalance can only be overcome through the sustained and sustainable development of aquaculture. In this sense, the European vision for the Sustainable Development of Aquaculture emerges, based on the promotion of competitiveness through innovative, environmentally sustainable methodologies, considering animal welfare and health, and the consumer's perspective.

In Portugal, as well as in Europe, essentially marine and mostly carnivorous species are produced. In the national territory, the main ones are turbot, sea bream, trout, sea bass and sole. The production of these species implies knowing the nutritional requirements of each one of them to ensure excellent growth, optimizing animal health and well-being.

The existing diets on the market are particularly designed for each species and these formulations follow well-defined and regulated rules. The entire process is tracked to ensure consumer safety. Likewise, the nutritional value of each fish depends on these diets, being important to ensure that they meet the highest quality requirements.

The CIIMAR Fish Nutrition, Growth and Quality Laboratory, led by an ICBAS Professor, works to optimize and evaluate sustainable production practices in aquaculture and improve the quality, safety and well-being of fish. It also prepares functional diets for these animals, designed to promote their health and nutritional value, to respond to the growing demands of the consumer.

 

To know more:

- Fish Nutrition and Feeding
- Increased growth and immune response of European sea bass through diet
- Change in lipid metabolism and oxidative stress of rainbow trout through diet

Contact: Professor Luísa Valente (lvalente@icbas.up.pt)

Categories
Research

Vet-OncoNet Project: One Oncology, One Health

registo de animais com cancro
One Health Dog Human interaction Vet-OncoNet

Many of the tumors in companion animals are comparable to human tumors and can serve as a model in epidemiological studies and clinical trials.

In clinical trials, companion animals are better positioned than animal models, such as laboratory mice, because in addition to being exposed to similar environmental risk factors, they develop cancer spontaneously and quickly, which favors clinical results. In the future, it is expected that companion animals can be used as sentinels for risky environments for humans, enabling the adoption of preventive measures appropriate to human and environmental health.

Vet-OncoNet is a network for sharing information on companion animal tumors and research of risk factors. This platform is an initiative of ICBAS and the Institute of Public Health of the University of Porto (ISPUP), framed in the One Health policies of these institutions. It involves researchers from the departments of Population Studies, Veterinary Clinics, Pathology and Molecular Immunology at ICBAS and the Department of Veterinary Public Health of ISPUP. The University of Trás-os-Montes and Alto Douro (UTAD) joined this initiative, becoming a co-founding institution of the Vet-OncoNet Network. Built on the pillars of the One Health concept and vision, it aims to contribute to progress in prevention and therapy in animal and human oncology. They mutually benefit from this joint approach and knowledge sharing between scientists from different fields.

Within this academic-scientific context, Vet-OncoNet's mission is to develop scientific activity, teaching, dissemination, and communication of credible information in the field of Animal Oncology.

To know more:

– Vet-Onconet: Information sharing network on neoplasms of pets and investigation of risk factors

Contact: Professor João Niza Ribeiro (jjribeiro@icbas.up.pt)

Categories
Research

Prevention of physical and mental retardation through iodine intake

Os seres humanos e outros animais requerem a ingestão de uma certa quantidade de iodo
One Health at ICBAS research iodine in diet

Humans and other animals require the intake of a certain amount of iodine, a nutrient necessary for the regular functioning of the thyroid, a gland that regulates the body's metabolism.

Food, water, and breathing the iodine-rich coastal air are the natural sources of this nutrient. Fish, dairy products, and seaweed used to be enough to cover our needs. However, the new nutritional paradigm in the developed world favors the intake of iodine-poor foods. Iodine deficiency, especially during pregnancy and in the first years of life, can compromise the physical and mental development of children.

Salt iodization is the cheapest, most sustainable, and universal way to deal with this problem. The process started a century ago in Switzerland. In Western Europe, mandatory use is not widespread, and the disability can reach worrying levels. In Africa, due to the contribution of the International Community, students are regularly supplemented. Urine tests are used to check iodine levels. However, low or high levels of iodine lead to the same disease - goiter. Therefore, correct daily intake by children and adults, including pregnant women, is imperative to address iodine deficiency worldwide.

The Laboratory of Hydrobiology and Ecology of ICBAS assesses, in Guinea-Bissau (and beyond), the sufficiency of iodine in human urine using a method certified for this purpose. This work is essential to identify iodine deficiency and deal with its consequences.

To know more:

- Endemic goiter and iodine deficiency status among Guinea-Bissau school-age children
- Can non-fortified marine salt cover human needs for iodine?

Contact: Professor Adriano A. Bordalo (bordalo@icbas.up.pt)

Categories
Research

Cholera: The forgotten pandemic

Água e alimentos contaminados são a principal fonte do agente da cólera
One Health at ICBAS, research in water quality and cholera

For several millennia, cholera - an acute diarrheal disease that can lead to death in a few days if left untreated - devastated the Indian subcontinent. Vasco da Gama, the well-known Portuguese navigator, died of cholera in southern India in the 16th century.

Cholera is still active today in four continents, with a special incidence in Africa. The disease is already in the 7th pandemic, which has been going on since 1960. In Europe, the last epidemic occurred in Portugal in 1974, where it infected almost 2,500 citizens and killed 48.

Contaminated water and food are the main sources of the cholera agent - a vibrio (bacteria) ubiquitous in coastal waters. Once ingested in a sufficient dose, the bacteria can escape the stomach's acid barrier and colonize the intestine. If toxins are produced, a person can lose up to 20 liters of internal fluid through watery diarrhea. If these fluids are not replaced, the patient dies. The treatment is particularly inexpensive, by electrolyte replacement through the administration of an oral rehydration solution, a mixture of sugar and salts and (eventually) common antibiotics.

Lack of clean water, sanitation, hygiene, and poor health care favor the spread of the disease. The battle for eradication is far from being accomplished, an additional problem for the poorest of the poor. The Laboratory of Hydrobiology and Ecology of ICBAS studies the conditions of access to water (quality and microbiology) of the population in Guinea-Bissau, analyzes the relationship between water consumption and the onset of disease, and identifies the possible causes of contamination of this precious liquid

To know more:

– Water bags as a potential vehicle for transmitting disease in a West African capital, Bissau
– Analysis of the bacterial community composition in acidic well water used for drinking in Guinea-Bissau, West Africa

Contact: Professor Adriano A. Bordalo (bordalo@icbas.up.pt)

Categories
Events

1st Porto One Health Day

International One Health Day
International One Health Day

International One Health Day at ICBAS

November 3rd, 2021

Talks about One Health organized by ICBAS and different Research Units of the University of Porto, with the participation of Dr. Laura H. Kahn (Co-founder of the One Health Initiative One Health Initiative).

Todas as palestras foram realizadas em formato presencial e on-line. Check the full program. 

Read the interview that we performed to Dr. Laura H. Kahn.

See the videos of the talks.

Categories
Events

1st Porto One Health Day

International One Health Day
International One Health Day

International One Health Day at ICBAS

November 3rd, 2021

Talks about One Health organized by ICBAS and different Research Units of the University of Porto, with the participation of Dr. Laura H. Kahn (Co-founder of the One Health Initiative One Health Initiative).

Todas as palestras foram realizadas em formato presencial e on-line. Check the full program. 

Read the interview that we performed to Dr. Laura H. Kahn.

See the videos of the talks.

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