Patrycja Skowronek
YOU?
Author Swipe
View article: Changes in Proteolytic System Activity Due to Varroa destructor Infestation in Apis mellifera Workers
Changes in Proteolytic System Activity Due to Varroa destructor Infestation in Apis mellifera Workers Open
The proteolytic system plays a crucial role in maintaining the homeostasis and defence against pathogens. Its proper functioning depends on the balance between the activities of proteases and their inhibitors. The disturbing of this balanc…
View article: Probiotic Yeast and How to Use Them—Combining Traditions and New Waves in Fermented Beverages
Probiotic Yeast and How to Use Them—Combining Traditions and New Waves in Fermented Beverages Open
Potentially probiotic yeasts isolated from foodstuffs can be used as components in functional fermented beverages. To date, there have been no reports on the use of Saccharomyces cerevisiae var. boulardii, Pichia kudriavzevii, Metschnikowi…
View article: The Efficiency of the Krebs Cycle and the Respiratory Chain in Physiologically and Prematurely Aging Bees (Apis mellifera)
The Efficiency of the Krebs Cycle and the Respiratory Chain in Physiologically and Prematurely Aging Bees (Apis mellifera) Open
The process of aging in organisms is associated with progressive metabolic changes that affect energy production. In our study, we compared the activities/concentrations of components related to the Krebs cycle and the respiratory chain (s…
View article: Advanced Research on Biological Properties—A Study on the Activity of the Apis mellifera Antioxidant System and the Crystallographic and Spectroscopic Properties of 7-Diethylamino-4-hydroxycoumarin
Advanced Research on Biological Properties—A Study on the Activity of the Apis mellifera Antioxidant System and the Crystallographic and Spectroscopic Properties of 7-Diethylamino-4-hydroxycoumarin Open
The search for substances that increase the immunity of bees is becoming a necessity in the era of various environmental threats and the declining immunocompetence of these insects. Therefore, we tested the biological and physicochemical p…
View article: The Pheromone Landscape of Apis mellifera: Caste-Determined Chemical Signals and Their Influence on Social Dynamics
The Pheromone Landscape of Apis mellifera: Caste-Determined Chemical Signals and Their Influence on Social Dynamics Open
A honeybee (Apis mellifera) colony is a superorganism of complex social dynamics. Within the colony, communication between individuals and castes is crucial for maintaining homeostasis. Such complex interactions are possible thanks to semi…
View article: Antioxidant Activities in the Hemolymph and Fat Body of Physiologically and Prematurely Aging Bees (Apis mellifera)
Antioxidant Activities in the Hemolymph and Fat Body of Physiologically and Prematurely Aging Bees (Apis mellifera) Open
Aging is a multifactorial process that occurs in all living organisms, including bees. One of the factors accelerating this process is stress caused in bees by Varroa destructor. The research aim was to compare antioxidant system activitie…
View article: The level of fecal glucocorticoid metabolites in cervids as a key to assessing their welfare
The level of fecal glucocorticoid metabolites in cervids as a key to assessing their welfare Open
Cervids are a group of animals that are particularly sensitive to negative stimuli from the environment. Undoubtedly, hunting is one of the factors that negatively affect the welfare of game animals. The aim of the study was to analyze the…
View article: Probiotic Yeasts and How to Find Them—From Spoilage to Probiotic
Probiotic Yeasts and How to Find Them—From Spoilage to Probiotic Open
In the last decade, probiotic yeasts have gained more attention from the scientific community. However, over the decades, researchers have mostly viewed spoilage yeasts as unnecessary and unwanted contamination without considering any of t…
View article: Cannabidiol (CBD) Supports the Honeybee Worker Organism by Activating the Antioxidant System
Cannabidiol (CBD) Supports the Honeybee Worker Organism by Activating the Antioxidant System Open
In the experiment, we tested the effect of 30% CBD oil on the activity of the antioxidant system (superoxide dismutase, catalase, glutathione peroxidase, glutathione), the level of total antioxidant capacity, and the concentrations of ions…
View article: A claws and hair cortisol levels correlation in cats.
A claws and hair cortisol levels correlation in cats. Open
The accumulation of cortisol in hair and claws, which grow slowly, makes it possible to retrospectively assess chronic stress levels. The study involved 47 cats from a shelter for homeless animals. Hair from the lumbosacral region and the …
View article: Hair cortisol levels in cats before and during their first month at a homeless animal shelter.
Hair cortisol levels in cats before and during their first month at a homeless animal shelter. Open
Hair cortisol analysis is a helpful tool for non-invasive measurement of the long-term activity of the HPA (hypothalamic-pituitary-adrenal) axis. Long-term exposure to stressors affects, among others, animals staying in shelters for homele…
View article: CBD Supplementation Has a Positive Effect on the Activity of the Proteolytic System and Biochemical Markers of Honey Bees (Apis mellifera) in the Apiary
CBD Supplementation Has a Positive Effect on the Activity of the Proteolytic System and Biochemical Markers of Honey Bees (Apis mellifera) in the Apiary Open
We examined how CBD extract influences the activity of the immune system in the hemolymph of honey bees in the hive test. The bees were divided into 3 groups: (CSy) bees fed with CBD in sugar syrup with glycerin; (CSt) cotton strip with CB…
View article: Do the different life history strategies of ants and honeybees determine fat body morphology?
Do the different life history strategies of ants and honeybees determine fat body morphology? Open
The separation of two sister groups such as ants and bees in the Cretaceous involved the development of distinctive characteristics to occupy separate ecological niches. From the point of view of biology and ecology, it is important to see…
View article: Are Hair Cortisol Levels of Humans, Cats, and Dogs from the Same Household Correlated?
Are Hair Cortisol Levels of Humans, Cats, and Dogs from the Same Household Correlated? Open
Human–animal interactions and the emotional relationship of the owner with the pet are the subjects of many scientific studies and the constant interest of not only scientists but also pet owners. The aim of this study was to determine and…
View article: Activities of Antioxidant and Proteolytic Systems and Biomarkers in the Fat Body and Hemolymph of Young Apis mellifera Females
Activities of Antioxidant and Proteolytic Systems and Biomarkers in the Fat Body and Hemolymph of Young Apis mellifera Females Open
The proteolytic and antioxidant systems are important components of humoral immunity, and these biomarkers indicate the immune status. These compounds are synthesized in the bees’ fat body and released into the hemolymph. Their functions m…
View article: Morphology of Nasonov and Tergal Glands in Apis mellifera Rebels
Morphology of Nasonov and Tergal Glands in Apis mellifera Rebels Open
Social insect societies are characterized by a high level of organization. This is made possible through a remarkably complex array of pheromonal signals produced by all members of the colony. The queen’s pheromones signal the presence of …
View article: Impressive Impact of Hemp Extract on Antioxidant System in Honey Bee (Apis mellifera) Organism
Impressive Impact of Hemp Extract on Antioxidant System in Honey Bee (Apis mellifera) Organism Open
We examined the effect of hemp extract on the activity of the antioxidant system (catalase, peroxidase, glutathione, superoxide dismutase, and total antioxidant capacity) in the hemolymph of adult honey bees (Apis mellifera). The bees were…
View article: Humoral and Cellular Defense Mechanisms in Rebel Workers of Apis mellifera
Humoral and Cellular Defense Mechanisms in Rebel Workers of Apis mellifera Open
The physiological state of an insect depends on efficiently functioning immune mechanisms such as cellular and humoral defenses. However, compounds participating in these mechanisms also regulate reproductive caste formation and are respon…
View article: Pollen Diet—Properties and Impact on a Bee Colony
Pollen Diet—Properties and Impact on a Bee Colony Open
Diet is an important factor in the proper development of the individual and the entire colony. A pollen diet affects honey bees in a number of ways. It can stimulate the number and type of hemocytes, the total number of proteins, carbohydr…
View article: Cannabis Extract Has a Positive–Immunostimulating Effect through Proteolytic System and Metabolic Compounds of Honey Bee (Apis mellifera) Workers
Cannabis Extract Has a Positive–Immunostimulating Effect through Proteolytic System and Metabolic Compounds of Honey Bee (Apis mellifera) Workers Open
In the study, we assessed the effect of hemp extract on activities of resistance parameters and the metabolic compound concentration in adult workers’ hemolymph. Bees were divided into the following groups: (1) control group fed with mixtu…
View article: Fat Body—Multifunctional Insect Tissue
Fat Body—Multifunctional Insect Tissue Open
The biodiversity of useful organisms, e.g., insects, decreases due to many environmental factors and increasing anthropopressure. Multifunctional tissues, such as the fat body, are key elements in the proper functioning of invertebrate org…
View article: Prominence of environmental and anthropogenic agents on the occurrence of coral reef bleaching syndrome and coral diseases
Prominence of environmental and anthropogenic agents on the occurrence of coral reef bleaching syndrome and coral diseases Open
Coral reefs are the most productive ecosystems on Earth. They ensure the conservation of biodiversity and are a live habitat for 25% of all marine organisms. The main relationship on the coral reef is the symbiosis between corals and algae…
View article: Feasibility of Preparing Nesting Box and Luring Large Solitary Carpenter Bee, Xylocopa Valga
Feasibility of Preparing Nesting Box and Luring Large Solitary Carpenter Bee, Xylocopa Valga Open
Xylocopa valga, commonly called the carpenter bee and the largest bee with metallicviolet hair cover, is extremely rarely observed in Poland. We hypothesize that a stable and possibly long-term population of X. valga can be maintained in P…