نتایج جستجو برای: nanobacteria
تعداد نتایج: 99 فیلتر نتایج به سال:
Introduction: Nanobacteria have been implicated in the formation of pathogenic calcifications e.g. kidney stones, arterial plaque, calcified cardiac valves, dental pulp stone, etc. It has been hypothesized that nanobacteria may be present in dental calculus which has a similar mineralization formation process and that nanobacteria may play an efficient role in the calcification of dental calcul...
A single team has reported isolation of nanobacteria in human and bovine blood products, as well as, more recently, kidney stones. This has raised controversy. To confirm the data, we searched for nanobacteria from 10 aseptically removed upper urinary tract (UUT) stones. We used scanning electronic microscopy (SEM) with four stones and culture of stones on either 3T6 fibroblast monolayers or li...
Isolation of Nanobacteria from different types of urinary tract stones from different populations all over the world raises the possibility that these microorganisms are etiological agents of these stones. The aim of this study was to isolate and identify the nanobacteria from different types of human urinary tract stones and serum from Egyptian population. We searched for nanobacteria from ten...
Current models predict that the elevation of the Earth's surface temperature due to global warming is accompanied by a warming of the troposphere, and a thickening cloud cover associated with longer-lasting clouds, in particular over land. These effects can have an instant impact on the vitality level of microorganisms in clouds and the spreading of airborne diseases. Microorganisms could origi...
"Nanobacteria" are nanometer-scale spherical and ovoid particles which have spurred one of the biggest controversies in modern microbiology. Their biological nature has been severely challenged by both geologists and microbiologists, with opinions ranging from considering them crystal structures to new life forms. Although the nature of these autonomously replicating particles is still under de...
Calcium phosphate is deposited in many diseases, but formation mechanisms remain speculative. Nanobacteria are the smallest cell-walled bacteria, only recently discovered in human and cow blood and commercial cell culture serum. In this study, we identified with energy-dispersive x-ray microanalysis and chemical analysis that all growth phases of nanobacteria produce biogenic apatite on their c...
BACKGROUND Microbes have been suspected as provocateurs of polycystic kidney disease (PKD), but attempts to isolate viable organisms have failed. Bacterial endotoxin is the most often reported microbial product found in PKD fluids. We assessed potential microbial origins of endotoxin in cyst fluids from 13 PKD patients and urines of PKD and control individuals. METHODS Fluids were probed for ...
تولید واکسن‌های ویروسی و فرآورده‌های دارویی بر پایه سلولی، یک فرایند پیچیده است که در آن از مواد بیولوژیک متفاوتی (انواع سوبسترای سلولی مثل: تخم مرغ جنین‌دار، سلول‌های پرایمری و لاین، مواد خام و افزودنی‌های محیط کشت با منشاء حیوانی و ویروس بذر) استفاده می‌گردد، که مراحل فوق را بالقوه نسبت به آلودگی با عوامل ناخواسته آسیب‌پذیر می‌کند. Nanobacteria همچون سایر عوامل ناخواسته می‌تواند از طریق موا...
BACKGROUND AND OBJECTIVE Nanoscopic life forms called Nanobacteria or calcifying nanoparticles (CNP) are unconventional agents. These novel organisms are very small (0.1 to 0.5 microns) and possess unusual properties such as high resistance to heat and routine antimicrobial agents. Nanobacteria are 100 times smaller than bacteria and protected by a shell of apatite, so they could be as candidat...
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