Welcome to our book review site go-pdf.online!
You may have to Search all our reviewed books and magazines, click the sign up button below to create a free account.
Antimicrobial compounds from natural sources
Nature is a generous source of compounds with the potential to treat diseases, including infectious diseases, which is of utmost importance for modern medicine as antimicrobial resistances increase. Known sources of natural compounds with valuable antimicrobial activity include medicinal plants, and marine and terrestrial organisms such as fungi and bacteria. Nevertheless, there is still a vast fauna and flora that, once systematically explored, could provide additional antimicrobial leads and drugs. Investigators are welcome to contribute original research and/or review articles in this area, specifically with studies exploiting the mechanism of action and the structure-activity aspects of natural compounds with antimicrobial activity that provide insights into potential ways to overcome antimicrobial resistance.
Sistema imune em aracnídeos
Peptídeos antimicrobianos são importantes componentes do sistema imune de vertebrados e invertebrados. Neste trabalho purificamos e caracterizamos quatro moléculas presentes na hemolinfa da aranha Acanthoscurria gomesiana: 1) theraphosinina, peptídeo de 4052,5 Da purificado do plasma, apresenta atividade anti-Micrococcus luteus e não apresenta similaridade com outros peptídeos. A partir dos hemócitos foram purificados: 2) mygalomorphina, um peptídeo de 415,9 Da com atividade anti-Escherichia coli. Sua atividade está relacionada à produção de 'H IND. 2''O IND. 2' pois é inibida por catalase; 3) gomesina, um peptídeo de 2270,4 Da que apresenta alta similaridade com taquiplesinas e protegrinas. Apresenta amplo espectro de atividade contra bactérias, leveduras, fungos e Leishmania; 4) acanthoscurrina, um peptídeo rico em glicina, que apresenta duas isoformas com 10132,4 e 10249,1Da. Este peptídeo tem atividade contra E. coli e Candida albicans e apresenta grande similaridade com proteinas antifúngicas de insetos e também com proteínas relacionadas com a defesa em plantas.
Experimental and computational aspects of bioactive proteins from animal venoms: An insight into pharmacological properties and drug discovery
Animal venoms are complex mixtures of bioactive peptides and proteins with diverse pharmacological effects. These active molecules make up the components of venom toxins responsible for many pathological outcomes in snake envenomation. Although venom toxins can be deadly, they can potentially be lifesaving once their respective pharmacological targets and mechanistic actions are better understood. For example, the discovery of captopril from Brazilian viper, Bothrops jararaca venom which has been shown to antagonise angiotensin-converting enzyme (ACE) for the treatment of hypertension.
Surveying Antimicrobial Resistance: Approaches, Issues, and Challenges to Overcome
Why Antibiotic Resistance? The use of antibiotics in human and veterinary medicine may have consequences beyond their intended applications. The “One Health” concept recognizes that the health of humans is connected to the health of animals and the environment. Progress in molecular genetics is facilitating the rapid evaluation of the essentiality of these targets on a genomic scale. In 2015, a group of researchers established the International Conference on Antibiotic Resistance (IC2AR).The primary objective of this meeting is to bring together scientists involved in antibiotic resistance prevention and control. The IC2AR conducted its inaugural world congress in January 2015 at Caparic...
Phage Therapy: Past, Present and Future
Historically, the first observation of a transmissible lytic agent that is specifically active against a bacterium (Bacillus anthracis) was by a Russian microbiologist Nikolay Gamaleya in 1898. At that time, however, it was too early to make a connection to another discovery made by Dmitri Ivanovsky in 1892 and Martinus Beijerinck in 1898 on a non-bacterial pathogen infecting tobacco plants. Thus the viral world was discovered in two of the three domains of life, and our current understanding is that viruses represent the most abundant biological entities on the planet. The potential of bacteriophages for infection treatment have been recognized after the discoveries by Frederick Twort and F...
Host and Microbe Adaptations in the Evolution of Immunity
The evolution of metazoans has been accompanied by new interfaces with the microbial environment that include biological barriers and surveillance by specialized cell types. Increasingly complex organisms require increased capacities to confront pathogens, achieved by co-evolution of recognition mechanisms and regulatory pathways. Two distinct but interactive forms of immunity have evolved. Innate immunity, shared by all metazoans, is traditionally viewed as simple and non-specific. Adaptive immunity possesses the capacity to anticipate new infectious challenges and recall previous exposures; the most well-understood example of such a system, exhibited by lymphocytes of vertebrates, is based...
Spixiana
None
