A5041394899- Freshwater macroinvertebrate diversity and ecology
- Hormonal and reproductive studies
- Stress Responses and Cortisol
- Plant and animal studies
- Fossil Insects in Amber
- Circadian rhythm and melatonin
- Insect and Arachnid Ecology and Behavior
- Parasitic Diseases Research and Treatment
- Diptera species taxonomy and behavior
- Parasite Biology and Host Interactions
- Phytoestrogen effects and research
- Assisted Reproductive Technology and Twin Pregnancy
- Insect behavior and control techniques
- Nutritional Studies and Diet
- Reproductive Biology and Fertility
- Oral microbiology and periodontitis research
- Environmental DNA in Biodiversity Studies
- Salivary Gland Disorders and Functions
- Sexual Differentiation and Disorders
- Spatial Cognition and Navigation
- Reproductive Health and Technologies
- Hypothalamic control of reproductive hormones
- Biomarkers in Disease Mechanisms
- Insects and Parasite Interactions
- Insect symbiosis and bacterial influences
Comenius University Bratislava
2011-2024
Institute of Zoology of the Slovak Academy of Sciences
2020
Charles University
2018
Slovak Academy of Sciences
2009
The new, small cavernicolous species Helmablatta louisrothi gen. et sp. n. (Nocticolidae) from the Tan-Phu cave (Vietnam) is one of most morphologically interesting cockroaches. extremely modified upstanding tergal gland composite three tergites and may serve for gripping female head during copulation. This presumption supported by presence a central big hook on tergite 8. Furthermore, both wing pairs are uncommonly adapted to help releasing sex pheromones without raising wings. Histone 3...
The European black fly Simulium (Simulium) colombaschense (Scopoli), once responsible for as many 22,000 livestock deaths per year, is chromosomally mapped, permitting its evolutionary relationships and pest drivers to be inferred. species 12 fixed inversions removed from the standard sequence of subgenus Simulium. Three these inversions, 38 autosomal polymorphisms, a complex set X 6 Y chromosomes in 29 zygotic combinations uniquely characterize S. reveal 5 cytoforms: 'A' Danube watershed,...
Salivary concentrations of thiobarbituric acid-reacting substances (TBARS) are associated with the periodontal status assessed as papillary bleeding index (PBI). Whether this association is age independent currently unclear. advanced oxidation protein products (AOPPs) and glycation end (AGEs) have not been in relation to or oral health yet. The aim our study was analyse salivary markers oxidative stress dental patients age, gender health.Consecutive adult non-smoking were enrolled (n = 204;...
Background. Thiobarbituric reacting substances (TBARS) are markers of lipoperoxidation. The best‐known specific TBARS is malondialdehyde (MDA). Results from our previous studies have shown that can be measured in saliva and increased patients with gingivitis. Whether MDA the main altered parodontal status unknown. Aim. To observe relationship between TBARS, number epithelial cells saliva. Subjects & Methods. In Study I plasma samples 15 (8F, 7M) suffering inflammatory periodontal...
Infradian rhythms of sex hormones in women are important several physiological and pathophysiological processes. Detailed analyses these difficult due to problems with sampling. Salivary levels steroids widely used when repeated sampling is needed. However, a description variation during the menstrual cycle daily lacking. In our study salivary testosterone, estradiol progesterone were measured samples collected by 17 young healthy (21,2+/-0,7 years) one cycle. Sex steroid determined using...
Due to the repeated outbreaks of blackflies, consequent economical losses and health problems, Serbia was considered as most threatened European country in past. During last century (up `60s), Simulium colombaschense caused enormous livestock. Significant poultry production by S. maculatum were also reported 1958, while erythrocephalum severe dermatological problems humans 1965 1970. In fifteen years, blackflies reemerging bite related recorded some parts Serbia. The research objective...
Organisms with vast distributions often represent geographical mosaics of cryptic species. The black fly Simulium (Wilhelmia) lineatum is among the most widely distributed members family Simuliidae, ranging from British Isles to eastern China. Rather than viewing S. as a possible aggregate multiple species, taxonomists have suggested more inclusive taxon additional synonyms. Accordingly, an ideal candidate for testing hypothesis that wide distribution signals presence one A cytogenetic...
Abstract Emergence patterns of blackflies (Diptera: Simuliidae) were investigated for 2 years at nine sites in the Plitvice Lakes area Croatia, using pyramid‐type traps. A total 38 012 specimens representing 10 haematophagous species collected. The dominant was Simulium angustipes Edwards, 1915, a vector transmitting avian trypanosomes. Water temperature, alkalinity, conductivity and habitat type represented factors with greatest degree influence on blackfly composition, structure...
Soy phytoestrogens are known to influence the hormonal status acting as partial estrogen agonists. Soy-derived food supplements advised for hormone replacement therapy, prevention of atherosclerosis, age-related cognitive decline and even hormone-dependent cancer, although results from clinical studies controversial. Whether increased soybean intake can affect endocrine abilities is largely unknown.To observe effects 1 week on sex levels spatial in women.16 young healthy female volunteers...
Simuliidae family in Spain has been studied irregularly: some enclaves have widely investigated by both national and foreign experts, while others merely mentioned or addressed indirectly for various reasons. The Madrid Region recurrently this respect, yet many geographical areas remain to be regarding taxonomy, distribution, ecology. In study, a thorough sampling was conducted based on searching preimaginal stages of larva pupa attached fixed any suitable support different lotic water...
Background. Circadian and circannual cycles of testosterone (T) in men are known. The results our previous study have shown indices for the existence a male circalunar cycle T similar to female one. Objective. purpose this was investigate possible infradian rhythms salivary young healthy men. Subjects & Methods. Saliva samples from 31 (18–25 years age) were collected every second day (for 1 month) third (during following 1.5 months). levels determined by radioimmunoassay. Data statistically...
Simulium degrangei Dorier & Grenier, 1960 was recorded in southern and central Europe the Crimea Caucasus. Its distribution pattern is scattered. The variability of mtDNA gene encoding cytochrome oxidase I studied populations S. from Western Carpathians Slovakia northern Hellenides Greece. In analyzed samples, 21 haplotypes were recorded, which twenty private occurred only one mountain range, but haplotype found all three Carpathians. Both private, these not isolated they fit into network...
DNA barcoding based on the cytochrome oxidase I gene is increasingly used in black flies (Diptera: Simuliidae), but extensive data for larger areas are still rare. Slovakia, with well-explored fly fauna, was chosen to verify reliability of species identification. The region COI 235 individuals 25 from Slovakia sequenced. Among them, 30 sequence clusters assigned Barcode Index Numbers (BINs) were identified, and 5 them recorded first time. average intraspecific genetic divergence 0–3.24%,...
Background Increased soybean intake is often recommended for the prevention of hormone-dependent cancer, cardiovascular diseases and age-related cognitive decline. Although isolated phytoestrogens have shown these positive effects, evidence such influence increased consumption soybeans lacking.Aim To prove effects short-term on sex hormone levels spatial parameters in men.Subjects methods Seven young healthy men were asked to eat 900 g during 1 week. Sex determined saliva plasma, mental...