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Needs of patients with age related macular degeneration
Houdková, Eliška ; Jirkovský, Daniel (advisor) ; Haluzíková, Jana (referee)
This bachelor's thesis deals with the area of specific needs in patients with age-related macular degeneration (AMD). Objectives: The aim of this thesis is to provide an overview of the changed needs of patients with AMD. Methods: To achieve the aim of the thesis, a questionnaire survey was conducted. The target group of the survey were patients undergoing anti-VEGF therapy at an unnamed eye clinic. A total of 70 questionnaires were included in the survey. Results: Based on the statistical evaluation of the data, it was found that AMD significantly affects the lives of respondents in many areas. The majority of respondents identified independence and self-sufficiency as the most affected aspect of their lives. More than half of the respondents (55.71 %) have problems with mobility and everyday activities. AMD also negatively affects the mental health of patients, 70 % of respondents are afraid of depression or anxiety. Respondents find meaning and fulfillment in life, especially in the areas of family and friends relationships, leisure activities, spiritual development, education, gratitude, and a positive attitude towards life. Conclusion: AMD has a complex impact on the lives of patients. It is important to provide patients with AMD with high-quality and accessible care that includes not only...
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Mechanisms responsible for sex bias in the prevalence of autoimmune diseases
Ráček, Vojtěch ; Daňková, Pavlína (advisor) ; Ciferská, Hana (referee)
Studies have shown that women typically have stronger immune responses than men. This can also make them more susceptible to autoimmune diseases, with females comprising 80% of autoimmune patients. In women, one X chromosome is epigenetically silenced through a process called X chromosome inactivation. However, some immune-related genes located on the X chromosome, such as TLR7 and CD40L, may escape this silencing process in certain cells or tissues. This can result in a sex-biased expression that contributes to the development and susceptibility of autoimmune diseases like lupus, rheumatoid arthritis, and Sjögren's syndrome. Another interesting factor that explains this sex bias is lncRNA XIST, which is a primary regulator of the inactivation process. It plays a crucial role in lupus development and creates an XIST ribonucleoprotein complex with proteins that help establish a repressed chromatin state on the inactivated chromosome. Importantly, many of these proteins are autoantigens in various autoimmune diseases and may serve as clinical markers for the diagnosis of these conditions. While microbiome and sexual hormones also play important roles, the focus remains primarily on XIST RNA and escape genes. Keywords: autoimmune disease, sex bias, X chromosome, escape genes, lncRNA XIST, sexual...
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The role of infection of HPV and EBV in the etiology of nasopharyngeal and cervical carcinoma
Machů, Jakub ; Vojtěchová, Zuzana (advisor) ; Španielová, Hana (referee)
Human papillomaviruses (HPV) and Epstein-Barr viruses (EBV) are common DNA viruses that contribute to the development and progression of tumours. These two groups of viruses are associated with more than 600,000 cases of newly diagnosed tumours of different anatomical locations annually. However, carcinogenesis is not a part of their normal productive life cycle. High risk HPV infections are mainly associated with head and neck tumours and anogenital cancers. EBV infections are associated with a range of acute or chronic diseases and tumours, with Burkitt's lymfomas (BL), Hodgkin's lymphomas (HL) and nasopharyngeal carcinomas (NPC) being the most prominent. In recent years, it has been hypothesized that EBV infections may be involved in the development of cervical cancer in woman and that HPV infections may play a role in the development of NPC. The aim of this thesis is to characterize above mentioned groups of DNA viruses and to summarize currently available information about the potential role of these viruses in nasopharyngeal and cervical carcinomas. Key words: human papillomavirus, Epstein-Barr virus, nasopharyngeal carcinoma, cervical carcinoma
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Personality predictors of exercise addiction in competitive sport
Vítková, Tereza ; Mudrák, Jiří (advisor) ; Bezdíček, Ondřej (referee)
Exercise addiction is becoming a recognized concern, particularly prevalent in elite athletic environments where the pursuit of perfection is emphasized. Despite growing awareness of problematic exercise behaviors, research investigating the underlying risk factors remains limited. This study aimed to examine personality predictors of exercise addiction in Czech elite athletes. A sample of 168 competitive athletes, aged 18 to 30 years, completed assessments including the Exercise Addiction Inventory, Sport Motivation Scale-6, the Athletic Identity Measurement Scale, Performance Perfectionism Scale-Sport, and the Neuroticism Scale from Big Five Inventory. In terms of prevalence, the findings revealed that 16.5 % of athletes exhibited problematic signs of exercise addiction, while 76.7 % were potentially at risk with low severity of symptoms. No significant differences were observed between different groups of sports. Using multiple linear regression, the study demonstrated a significant overall effect of personality predictors on exercise addiction. Neuroticism, introjected regulation, and athletic identity were identified as significant predictors of exercise addiction. These findings highlight the importance of psychological factors such as personality traits and motivational regulation in...
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Dispersal and personality
Rišová, Slavomíra ; Frynta, Daniel (advisor) ; Sedláček, František (referee)
Dispersal of animals is an important area of ecology, the study of which is crucial for understanding population composition and dynamics. The acquired knowledge has broad applications in various fields, whether in the efforts to introduce endangered species or, conversely, to suppress the spread of invasive ones. However, dispersal begins at the individual level, so it is first necessary to determine which traits dispersing individuals possess. One possible aspect in which dispersers may differ from residents is their personality. This bachelor thesis provides a summary of literature that focuses on personality predictors of dispersal, comparing personality traits among each other, both within and across three selected taxa: fish, birds, and representatives of mammals - rodents. The literature suggests that in the context of individual personality, besides others, three main types of dispersal exist. In the first type, primarily observed in early stages of life, dispersal of more submissive individuals of territorial fish and rodents is enforced due to aggression from more dominant individuals. However, in birds, it is necessary to secure suitable territory as quickly as possible, leading to the opposite dependence - earlier dispersal of dominant individuals. The second type involves voluntary...
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The genus Neotinea Rchb.f. in Europe
Vavřina, Štěpán ; Chumová, Zuzana (advisor) ; Vosolsobě, Stanislav (referee)
The thesis deals with the genus Neotinea from the phylogenetic, molecular and ecologic points of view. Most of its species have been classified in the genus Orchis until the use of molecular methods. Within the Orchidoideae, Neotinea forms a sister clade to the genera Anacamptis, Serapias, Ophrys and Himantoglossum. Six species are accepted now. The current taxonomic circumscription calls for a revision under the influence of new knowledge. Especially in N. tridentata, which contains several well-differentiated lineages and is the ancestor of the tetraploid N. commutata. Also the relationship between N. lactea and N. conica remains unresolved. The genome size within the genus ranges from 6.48 pg in N. maculata to 31.14 pg in N. lactea. All species except N. commutata, whose tetraploid origin is debated, are diploid (2n = 42). Partial endoreplication is present in the genus. The range of endoreplicated DNA is relatively narrow regardless of differences in genome size. Species prefer open, slightly basic habitats. In mycorrhizal interactions they appear generalistic with a preference for Ceratobasidiaceae. At the level of reproductive strategies, the genus Neotinea prefers the generative mode over the vegetative one. N. maculata is autogamous, the other species are allogamous, food deceptive, with...
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Electronic legal transactions with a focus on a simple electronic signature
Švejda, Jiří ; Elischer, David (advisor) ; Zvára, Michael (referee)
Electronic legal transactions with a focus on simple electronic signatures Abstract The thesis is divided into six chapters. The first chapter consists of an introduction. The second chapter presents the general regulation and the meaning of the signature with a brief historical background necessary to assess the possible applicability of earlier conclusions to the current legal regulation. The third chapter is devoted to the current regulation and individual types of electronic signatures, i.e. the division into qualified electronic signature, advanced electronic signature and simple electronic signature and the Czech specificity in the form of advanced electronic signature based on a qualified certificate for electronic signatures, commonly known as recognised electronic signature. The chapter also concludes with a discussion of biometric signature, which is increasingly used in practice. The fourth chapter deals with the written form of legal transactions, i.e. a detailed analysis of the Sections 561 and 562 of the Civil Code, including their interrelation. Furthermore, aspects of digital continuity in higher levels of electronic signatures and their comparison with simple electronic signature are discussed. In the last part of the chapter, different types of electronic contracts and the differences...
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Derivatives of boronic acids as potential drugs I.
Koucká, Kateřina ; Kučerová, Marta (advisor) ; Zitko, Jan (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmaceutical Chemistry and Pharmaceutical Analysis Student: Kateřina Koucká Supervisor: PharmDr. Marta Kučerová, Ph.D. Consultant: PharmDr. Petr Šlechta Title of diploma thesis: Derivatives of boronic acids as potential drugs I. The thesis includes the design, synthesis, and biological evaluation of boronic acid derivatives. These derivatives were prepared as hybrid compounds containing an amide linker, combining mainly pyrazinoic acids with 4-aminophenylboronic acid. Pyrazinamide is used as 1st line antituberculosis drug and 4-aminophenylboronic acid is a bioisoster of 4-aminobenzoic acid, which is a crucial precursor in the folate pathway. Bioisosteric replacement of the carboxylic group with boronic acid could afford the ability of the compounds to form a reversible covalent bond toward a potential biological target. The presented compounds were synthesized in a two-step reaction. The first step was the condensation of 4-aminophenylboronic acid pinacol ester with different derivatives of (hetero)aryl carboxylic acids, that underwent previous activation. The second step was the deprotection of boronic acid pinacol ester to obtain free boronic acids derivatives. The obtained compounds were screened for their in vitro...
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Molecular mechanisms of heat stress memory in plants
Zelená, Julie ; Hála, Michal (advisor) ; Konrádová, Hana (referee)
Global warming is one of the main factors contributing to the decline in crop yield and overall plant biodiversity. Increasing surface temperatures of the Earth result in heightened demands on plant to cope with heat stress. Heat stress causes various damages to plants, primarily denaturation of cellular proteins, loosening of biomembranes, and accumulation of reactive oxygen species (ROS). Plants cells defend against heat stress through lipid remodeling of membranes, increased production of ROS scavengers, and primarily increased production of heat shock proteins (HSP), which are molecular chaperons maintaining proteins properly folded even at temperatures that would otherwise cause denaturation. Plants have developed mechanism to cope with recurring heat stress, such as heat waves, that is referred to as acquired thermotolerance and is enabled by the plant's ability to undergo stress memory. Key to stress memory is priming, which involves preparing the plant for very strong heat stress by exposing it to milder heat stress beforehand. Following priming, there comes a memory period, that is also called recovery period, during which the cell maintains altered molecular expression and physiology. The mechanisms of heat stress memory are divided into transcriptional and post- transcriptional,...
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Effect of Sleep Education and Behavioral Techniques on Sleep and Emotional Regulation in Patients with Insomnia.
Smolková, Eliška ; Janků, Karolina (advisor) ; Horáková, Hana (referee)
This diploma thesis introduces the topic of a short-termed approach to treating insomnia. The theoretical part addresses healthy sleep and sleep assessment methods. It describes insomnia and a large part of the thesis is devoted to the treatment of this sleep disorder. The thesis introduces the relationship between emotional regulation and sleep. The aim of the empirical part is to investigate the effect of a short program dedicated to insomnia on sleep parameters (time in bed, total sleep time, sleep efficiency, sleep onset latency), on the severity of insomnia and on difficulties in emotional regulation in individuals suffering from insomnia. The pilot research is examining the variables listed above before and after the programme. The results suggest significant changes in sleep parameters, insomnia severity and difficulties in emotional regulation after the programme. Limitations of the present study are discussed and recommendations for further research in the area of short-term therapies for insomnia are provided. Key words: insomnia; emotion regulation; behavioural approach; cognitive behavioural therapy
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