Marica Engström
PhD
Bioanalytical Laboratory mtengs@utu.fi +358 29 450 3168 +358 50 412 2651 ORCID-tunniste: https://orcid.org/0000-0003-4123-6039 |
bioanalytical chemistry, natural product chemistry
Since my undergraduate studies, I have had one main mission that keeps me endlessly enthusiastic about natural compound chemistry; to better understand how polyphenols are responsible for the positive effects they have on human and animal health as well as environment and how to utilize this information in various polyphenol-based applications. As many of these aspects initially occur from polyphenol-protein interactions, it has naturally become one of my main interests. In addition to basic chemistry, I have been lucky to be involved in more applied research as well; this helps to keep an open mind and to see things in a wider perspective.
My current research focuses on the modification and semisynthesis of novel, Nature insipred polyphenolic compounds and their use as multitargeted anti-infective drugs to combat antimicrobial resistance.
One of the most fascinating aspects related to polyphenol bioactivity is their structure-activity relationships. The aim of these structure-activity studies is to be able to predict the activities of yet non-studied compounds based on their structural features. The ultimate goal is to find out the most active plant species without the need to isolate and separately test all of their metabolites for potent bioactivities. To get there, one of course needs to isolate, purify and characterize a large set of compounds to be tested for the desired activities. Similarly, their qualitative and quantitative analysis from plant samples is a prerequisite for understanding their biological functions - an area where there is always room for improvements!
I have always had a strong interest on instruments and all kind of technical work as well, thus, it is no surprise that one of my main missions is to further develop analytical methods for the analysis of various (natural) compounds, their different properties and bioactivities. In addition to methods based on sophisticated instruments, such as LC-MS/MS, it is important to develop methods that are simple to operate and could also be used with limited resources. For example, simple and rather unspecific methods that allow the estimation of how suitable some plant is to be used as environmentally friendly forage, could easily and without significant costs be used in different research environments, starting from developing countries. When available, the more specific and expensive methods could be used as complementary together with the unspecific ones.
I am Study Director/ Principal Investigator at the Bioanalytical Laboratory, and participate in project coordination and all parts of method development and quantitative analysis of preclinical and clinical samples in a GLP-certified environment.
My own research focuses on natural products and their metabolites: development of analytical methods, modification of polyphenols, semisynthesis of novel, Nature inspired polyphenols, their structure-bioactivity relationships and sustainable chemistry.
I am co-supervising undergraduate and graduate students, and doctoral doctoral researchers. I give lectures, and have been teaching on laboratory courses at the university level.
- Effects of pronounced seasonal turnover and intraspecific variation in leaf traits on specialization of insect herbivores associated with six Salicaceae hosts (2025)
- Oecologia
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Absorption pharmacokinetics and feasibility of intranasal dexmedetomidine in patients under general anaesthesia (2024)
- Acta Anaesthesiologica Scandinavica
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Candesartan Has No Clinically Meaningful Effect on the Plasma Concentrations of Cytochrome P450 2C8 Substrate Repaglinide in Humans (2024)
- Drug Metabolism and Disposition
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Effects of individual traits vs trait syndromes on assemblages of various herbivore guilds associated with central European Salix (2024)
- Oecologia
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Exploring the Interactions between Plant Proanthocyanidins and Thiabendazole : Insights from Isothermal Titration Calorimetry (2024)
- Molecules
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - The feeding of heather (Calluna vulgaris) to Teladorsagia circumcincta infected lambs reduces parasitism but can detrimentally impact performance (2024)
- Veterinary Journal
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Alkaline oxidization can increase the in vitro antiparasitic activity of proanthocyanidin-rich plant extracts against Ascaris suum (2023)
- Experimental Parasitology
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Leaf volatile and nonvolatile metabolites show different levels of specificity in response to herbivory (2023)
- Ecology and Evolution
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Tannins Can Have Direct Interactions with Anthelmintics: Investigations by Isothermal Titration Calorimetry (2023)
- Molecules
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Comparative analysis of the anthelmintic efficacy of European heather extracts on Teladorsagia circumcincta and Trichostrongylus colubriformis egg hatching and larval motility (2022)
- Parasites and Vectors
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Dietary proanthocyanidins promote localized antioxidant responses in porcine pulmonary and gastrointestinal tissues during Ascaris suum‐induced type 2 inflammation (2022)
- FASEB Journal
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Influence of the Hydrolyzable Tannin Structure on the Characteristics of Insoluble Hydrolyzable Tannin-Protein Complexes (2022)
- Journal of Agricultural and Food Chemistry
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Legacy of agrochemicals in the circular food economy: Glyphosate-based herbicides introduced via manure fertilizer affect the yield and biochemistry of perennial crop plants during the following year (2022)
- Chemosphere
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Use of agro-industrial by-products containing tannins for the integrated control of gastrointestinal nematodes in ruminants (2022)
- Parasite
(A2 Vertaisarvioitu katsausartikkeli tieteellisessä lehdessä) - Characterization of Natural and Alkaline-Oxidized Proanthocyanidins in Plant Extracts by Ultrahigh-Resolution UHPLC-MS/MS (2021)
- Molecules
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Modification of Natural Proanthocyanidin Oligomers and Polymers Via Chemical Oxidation under Alkaline Conditions (2021)
- ACS Omega
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Ellagitannins Inhibit the Exsheathment of Haemonchus contortus and Trichostrongylus colubriformis Larvae: The Efficiency Increases Together with the Molecular Size (2020)
- Journal of Agricultural and Food Chemistry
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Inhibition of Pneumolysin Cytotoxicity by Hydrolysable Tannins (2020)
- Antibiotics
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä ) - Benefits of Condensed Tannins in Forage Legumes Fed to Ruminants: Importance of Structure, Concentration, and Diet Composition (2019)
- Crop Science
(A2 Vertaisarvioitu katsausartikkeli tieteellisessä lehdessä) - Structural Features of Hydrolyzable Tannins Determine Their Ability to Form Insoluble Complexes with Bovine Serum Albumin (2019)
- Journal of Agricultural and Food Chemistry
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )