Johanna Muurinen

Johanna Muurinen
Purdue University | Purdue · Department of Animal Sciences

PhD

About

14
Publications
3,325
Reads
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390
Citations
Citations since 2017
11 Research Items
383 Citations
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
Introduction
My research interests are related to antimicrobial resistance, agriculture, livestock, soils and bioavailability. In addition I’m intrested about QMRA and all kinds of statistical methods and new ways to visualize data.
Additional affiliations
January 2013 - March 2017
University of Helsinki
Position
  • PhD Student

Publications

Publications (14)
Article
Full-text available
Water and sanitation are important factors in the emergence of antimicrobial resistance in low- and middle-income countries. Drug residues, metals, and various wastes foster the spread of antibiotic resistance genes (ARGs) with the help of mobile genetic elements (MGEs), and therefore, rivers receiving contaminants and effluents from multiple sourc...
Article
The increasing prevalence of antimicrobial resistant bacterial infections has ushered in a major global public health crisis. Judicious or restricted antimicrobial use in animal agriculture, aiming to confine the use for the treatment of infections, is the most commonly proposed solution to reduce selection pressure for resistant bacterial strains...
Article
We investigated connections between antimicrobial use (AMU), biosecurity, and the numbers of pigs and staff in ten Finnish farrow-to-finish herds. Data on AMU in each herd were collected for 12 months. AMU was quantified as treatment incidences per 1000 days at risk (TI) using the consensus defined daily dose calculation. Biosecurity was scored usi...
Article
Full-text available
Even though the use of antibiotics for food-producing animals may contribute to the emergence of antimicrobial resistance, antibiotics are still used as growth promoters. Due to consumer and regulatory pressures, the use of alternatives to antibiotics as growth promoters is increasing, thus more information is needed on their capability to dissemin...
Article
Full-text available
Since the introduction of antibiotics into clinical practices in the 1940s, antibiotics have become an integral part of animal production to meet the increasing human demand for animal-derived foods. As a result, industrial-scale animal production has emerged as a hotspot for the evolution and dissemination of antibiotic resistance genes (ARGs), th...
Preprint
Full-text available
The use of antimicrobials in animal production has been shown to increase the abundance of antibiotic resistance genes (ARGs) in microbiomes and it is recommended by international health organizations that the use of antimicrobial growth promoters would be restricted. Consequently, the use alternative growth promoters is increasing, however, their...
Article
Whole‐cell bioreporters are living organisms and thus using them for detecting environmental contaminants would reflect biological effects of these pollutants. However, bioreporters are not widely used in field studies. Many of the bioreporter field protocols are suitable for liquid samples or include pipetting steps, which is a demanding task outs...
Article
Soil carbon (C) represents the largest terrestrial carbon stock and is key for soil productivity. Major fractions of soil C consist of organic C, carbonates and black C. The turnover rate of black C is lower than that of organic C, and black C abundance decreases the vulnerablility of soil C stock to decomposition under climate change. The aim of t...
Chapter
This chapter introduces the quantitative PCR (qPCR) array, explores the advantages and disadvantages of the method, and reviews the literature on the research on wastewater treatment plants (WWTPs) and related environments utilizing qPCR arrays. Urban WWTPs have been considered hot spots for horizontal gene transfer (HGT) and they are recognized as...
Article
The co-occurrence of antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs) in farm environments can potentially foster the development of antibiotic resistant pathogens. We studied the resistome of Finnish dairy and swine farms where use of antibiotics is limited to treating bacterial infections and manure is only applied April to S...
Article
Full-text available
Large quantities of antibiotics are used in agricultural production, resulting in their release to agroecosystems through numerous pathways, including land application of contaminated manure, runoff from manure-fertilized fields, and wastewater irrigation of croplands. Antibiotics and their transformation products (TPs) exhibit a wide range of phys...
Conference Paper
This study contains the construction of a bacterial bioreporter and the detection of tetracycline contamination with a recombinant Escherichia coli sensor strain. Bioreporters are living organisms, which can be used for detection of antibiotics from various types of samples with basic laboratory equipment in only a few hours. In bioreporters detect...
Article
The dissemination of antibiotic resistance genes to the environment is an important factor causing increased prevalence of resistant pathogens. Manure is an important fertilizer, but it contains diverse resistance genes. Therefore, its application to fields may lead to increased abundance of resistance genes in the environment. Farming environments...

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Project (1)