|
|
Gemmotherapy and its use in practise
Škodová, Adriana ; Pokladníková, Jitka (advisor) ; Zubrová, Julie (referee)
GEMMOTHERAPY AND ITS USE IN PRACTISE Student: Škodová Adriana Tutor: PharmDr. Jitka Pokladníková, Ph.D. Department of Social and Clinical Pharmacy, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Czech Republic Introduction: Gemmotherapy or budding medicine is an herbal healing method, whose roots go back to the Middle Ages and folk healing. It uses germ-shaped parts of plants (especially buds) for the production of liqueur glycerin macerates, which are proven to contain larger quantities of some important substances with healing properties than adult parts of plants. Objectives: The aim of this work was to summarize basic information about gemmotherapy from available literature; to summarize the description of the traditional use of selected plants and gemmotherapeutics prepared therefrom; to provide a summary of studies based on evidence-based literature, especially with regard to content and confirmatory medicinal properties, adverse effects, drug interactions and contraindications. Methods: General information about gemmotherapy was mainly drawn from books available in the Czech language. Data collection took place from October 2016 to August 2017, and researches based on literature were mainly based on the electronic databases PubMed, Web of Science, Wiley Online Library,...
|
|
|
Mode of daptomycin action and mechanism of resistance
Helusová, Michaela ; Mikušová, Gabriela (advisor) ; Lichá, Irena (referee)
Daptomycin is one of antimicrobial peptides. These molecules are part of immune system of all organisms. Daptomycin consists of a cyclic peptide core and a lipophilic tail. Daptomycin is produced by Streptomyces roseosporus and is used to treat serious gram-positive infections. Daptomycin is active also against methicillin-resistant Staphylococcus aureus. Its antimicrobial effect depends on the presence of calcium ions and phosphatidylglycerol. Daptomycin targets bacterial cytoplasmic membrane, where it forms oligomers. Mode of action of daptomycin probably includes pore-forming effect leading to membrane damage. This disturbance causes ion efflux from cytoplasm which leads to membrane potential disruption, which results in inhibition of macromolecular synthesis and cell death. Daptomycin also causes changes in cell morphology. Despite its unusual mode of action, several mechanisms of resistance have emerged in some pathogenic strains. These are for example decrease in the amount of phosphatidylglycerol in the membrane, increase in the amount of lysylphosphatidylglycerol, release of membrane phospholipids or mutations in genes which control peptidoglycan synthesis.
|
|
|
Gemmotherapy and its use in practise
Škodová, Adriana ; Pokladníková, Jitka (advisor) ; Zubrová, Julie (referee)
GEMMOTHERAPY AND ITS USE IN PRACTISE Student: Škodová Adriana Tutor: PharmDr. Jitka Pokladníková, Ph.D. Department of Social and Clinical Pharmacy, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Czech Republic Introduction: Gemmotherapy or budding medicine is an herbal healing method, whose roots go back to the Middle Ages and folk healing. It uses germ-shaped parts of plants (especially buds) for the production of liqueur glycerin macerates, which are proven to contain larger quantities of some important substances with healing properties than adult parts of plants. Objectives: The aim of this work was to summarize basic information about gemmotherapy from available literature; to summarize the description of the traditional use of selected plants and gemmotherapeutics prepared therefrom; to provide a summary of studies based on evidence-based literature, especially with regard to content and confirmatory medicinal properties, adverse effects, drug interactions and contraindications. Methods: General information about gemmotherapy was mainly drawn from books available in the Czech language. Data collection took place from October 2016 to August 2017, and researches based on literature were mainly based on the electronic databases PubMed, Web of Science, Wiley Online Library,...
|
|
|
Role of cytoplasmic membrane and cell wall in bacterial resistance to cationic antimicrobial peptides
Havlová, Noemi ; Seydlová, Gabriela (advisor) ; Vopálenská, Irena (referee)
Cationic antimicrobial peptides are part of the innate immune system of all organisms. Their properties such as structure, charge, amphipathicity and hydrophobicity make them promising agents with the potential for use not only in treatment of bacterial infections but also against some viruses, parasites, fungi and cancer cells. One of their possible targets is the cytoplasmic membrane, which they permeabilize. This mode of action has several advantages. The important feature of antimicrobial peptides is their selectivity for bacterial membranes, which makes them harmless to eukaryotic host cells. Another advantage is that the development of bacterial resistance against these peptides is more difficult since the action of antimicrobial peptides is rapid. Nevertheless, there appeared some bacterial strains that are insensitive to already used antimicrobial peptides. By using target modification resistant bacteria are able to prevent the bactericidal effects of the antimicrobial peptides. At the level of cytoplasmic membrane bacteria can alter its electrostatic or structural properties of membrane lipids and thus the antimicrobial peptides lose their ability to interact with the membrane and permeabilize it. Understanding the mode of action of antimicrobial peptides and mechanisms by which bacteria...
|
|
|
Retrograde study of the effect of the shock ware therapy for the functional disorders of the musculosceletal system
Horáková, Kateřina ; Doubková, Lucie (advisor) ; Veselá, Jana (referee)
This thesis assesses the effectiveness of shock wave therapy for dysfunctional disorders of the musculoskeletal system. While we are well aware of the physical principles and history of shock wave generators, opinion differs on the treatment effectiveness mechanisms. The theoretical part of this work explains the effects of shock waves on various types of tissue, the differentiation of the cells, and the analgetic effect of therapy. It summarizes the indications, side effects and contraindications of shock wave therapy. The research part of this thesis deals with the effectiveness of shock wave therapy at the Department of Rehabilitation and Sports Medicine at the Motol University Hospital, which specialises in various musculoskeletal disorders. This thesis evaluates the correlation between the effectiveness of shock wave therapy and length of time the patient has experienced difficulties before undergoing treatment. This thesis also reviews whether the number of treatment applications has the capability to influence the outcome of therapy. The study is controlled by a control group of 22 patients. The total effectiveness of shock wave therapy is p = 1,12*10-10 . The shock wave therapy effectiveness of patients with heel spur is p = 0,00176. The shock wave therapy effectiveness of patients with...
|
|
|
Mode of action of antimicrobial lipopeptides produced by Bacillus subtilis
Pinkas, Dominik ; Seydlová, Gabriela (advisor) ; Žíla, Vojtěch (referee)
Increasing bacterial resistance to classical antibiotics and emergence of multi-resistant strains impose a constant threat. Antimicrobial compounds of bacterial origin are an important source of new antibacterial therapeutic agents needed to answer this issue. Three families of lipopeptides produced by Bacillus subtilis - surfactins, fengycins and iturins represent an interesting class of such compounds. They exert a wide range of biological activities and possess a good potential for modifications and improvement of their structure and function. Lipopeptides produced by B. subtilis are surface active compounds capable of reducing surface/interface tension. The variety of their biological activities stems from their ability to insert into lipid membranes leading to disruption and permeabilization of the membrane. Specific mode of action differs between the three families but the common feature is that it is concentration dependent. First, lipopeptides induce ion leakage, pore formation and then the increasing concentration eventually causes complete solubilisation of the membrane in a detergent-like manner. In addition, surfactin can inhibit some enzymes by chelating divalent cations required for their activity. These properties make the B. subtilis lipopeptides promising compounds for commercial applications.
|
guest ::
