scholarly journals Variability in Arsenic Methylation Efficiency across Aerobic and Anaerobic Microorganisms

2020 ◽  
Vol 54 (22) ◽  
pp. 14343-14351
Author(s):  
Karen Viacava ◽  
Karin Lederballe Meibom ◽  
David Ortega ◽  
Shannon Dyer ◽  
Arnaud Gelb ◽  
...  
Keyword(s):  
Anaerobic Microorganisms ◽  
Arsenic Methylation ◽  
Aerobic And Anaerobic

Vaginal microbiomes in women with infertility that was surgical treatment on the uterine appendages

2018 ◽  
pp. 98-102
Author(s):  
A.E. Dubchak ◽  
◽  
A.V. Milevsky ◽  
N.N. Obeid ◽  
◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Antimicrobial Agents ◽  
Inflammatory Diseases ◽  
Reproductive Age ◽  
Anaerobic Microorganisms ◽  
Normal Microflora ◽  
Vaginal Tract ◽  
High Degree ◽  
Aerobic And Anaerobic ◽  
Group 1

The objective: of the study was to study the microbial vaginal tract in women with infertility, who had undergone surgical treatment on the uterine appendages. Materials and methods. An examination of vaginal discharge on flora and STIs was conducted in 120 women of reproductive age with infertility and benign ovarian formations, ectopic pregnancy, which was organ-retained surgical intervention on the appendages of the uterus. Of these, 76 (1 group) patients were surgically treated in a planned manner, 44 (in 2 groups) – in urgent cases. Results. Inflammatory diseases of the genital area were more common in women with infertility, who had surgical treatment in an urgent manner than in women of group 1 (p<0.05), especially inflammatory diseases of the cervix – almost twice as likely as in group 1. The vaginal microbial examination of women with infertility who were hospitalized for surgical treatment in an urgent manner indicates a significant imbalance between the parameters of contamination of the genital tract by conditionally pathogenic and normal microflora. This, above all, was manifested by the high frequency of determination in women of the 2nd group of representatives of optional aerobes and anaerobes (p<0.05). The concentration of facultative-aerobic and anaerobic microorganisms was in patients of the 2nd group, mostly of high degree of microbial dissemination, and in women of the 1 group, medium and low. STIs were found mainly in association with anaerobic and aerobic microorganisms in patients who were operated in an urgent manner. Conclusion. It is necessary to correct the vaginal biotope in women with infertility before surgical treatment – to promptly influence pathogenic microorganisms with antimicrobial agents and restore physiological vaginal microbial vagina. Key words: women, infertility, vaginal microbial, appendages of the uterus, surgical treatment.

Organic Acids and Anaerobic Microorganisms in the Contents of the Cholesteatoma SAC

1983 ◽  
Vol 92 (1) ◽  
pp. 91-96 ◽  
Author(s):  
Yukiko Iino ◽  
Tomonori Takasaka ◽  
Etsuro Hoshino ◽  
Yutaka Kaneko ◽  
Sachiko Tomioka ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Organic Acids ◽  
Volatile Fatty Acids ◽  
Chromatographic Technique ◽  
Anaerobic Conditions ◽  
Clostridium Species ◽  
Anaerobic Microorganisms ◽  
Aerobic And Anaerobic ◽  
Aerobic And Anaerobic Conditions

Organic acids in the contents of the cholesteatoma sac from 28 cases were studied by gas chromatographic technique. Five volatile fatty acids (acetate, propionate, isobutyrate, butyrate and isovalerate) and lactate were detected in large amounts, which may lower the pH of the cholesteatoma content. These acids were considered to be derived from products of anaerobic microorganisms. Therefore, the contents from 12 cases were cultured anaerobically in a glove box. Obligate microorganisms were identified in 92% of the cases and Peptococcus, Bacteroides, and Clostridium species were frequently isolated. In vitro, such obligate anaerobes produced various organic acids from the cholesteatoma content. Facultatives such as Staphylococcus aureus and Proteus mirabilis produced acetate in the content under aerobic and anaerobic conditions, whereas no organic acid was produced by Pseudomonas aeruginosa. Organic acids in the cholesteatoma content could be fermentative products made by the microorganisms, anaerobes and facultatives, which use the content as a substrate for acid production.

scholarly journals Evaluation of the HB&L System for the Microbiological Screening of Storage Medium for Organ-Cultured Corneas

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
D. Camposampiero ◽  
S. Grandesso ◽  
E. Zanetti ◽  
S. Mazzucato ◽  
M. Solinas ◽  
...  
Keyword(s):  
Contamination Rate ◽  
Storage Medium ◽  
Human Donor ◽  
Predictive Values ◽  
Anaerobic Microorganisms ◽  
L System ◽  
Microbiological Control ◽  
Corneal Storage ◽  
Aerobic And Anaerobic ◽  
Donor Corneas

Aims. To compare HB&L and BACTEC systems for detecting the microorganisms contaminating the corneal storage liquid preserved at 31°C.Methods. Human donor corneas were stored at 4°C followed by preservation at 31°C. Samples of the storage medium were inoculated in BACTEC Peds Plus/F (aerobic microorganisms), BACTEC Plus Anaerobic/F (anaerobic microorganisms), and HB&L bottles. The tests were performed (a) after six days of storage, (b) end of storage, and (c) after 24 hours of preservation in deturgescent liquid sequentially. 10,655 storage and deturgescent media samples were subjected to microbiological control using BACTEC (6-day incubation) and HB&L (24-hour incubation) systems simultaneously. BACTEC positive/negative refers to both/either aerobic and anaerobic positives/negatives, whereas HB&L can only detect the aerobic microbes, and therefore the positives/negatives depend on the presence/absence of aerobic microorganisms.Results. 147 (1.38%) samples were identified positive with at least one of the two methods. 127 samples (134 identified microorganisms) were positive with both HB&L and BACTEC. 14 HB&L+/BACTEC− and 6 BACTEC+/HB&L− were identified. Sensitivity (95.5%), specificity (99.8%), and positive (90.1%) and negative predictive values (99.9%) were high with HB&L considering a 3.5% annual contamination rate.Conclusion. HB&L is a rapid system for detecting microorganisms in corneal storage medium in addition to the existing methods.

scholarly journals MEDICAL AND SOCIAL ASPECTS OF CHRONIC GENERAL PARODONTITIS

2018 ◽  
Vol 21 (3-4) ◽  
pp. 129-133
Author(s):  
S. N Puzin ◽  
I. V Pryanikov ◽  
N. B. Vanchenko ◽  
K. G Karakov ◽  
M. A Shurgaya
Keyword(s):  
Inflammatory Diseases ◽  
Dental Health ◽  
The Body ◽  
Social Aspect ◽  
Social Significance ◽  
Moderate Severity ◽  
Anaerobic Microorganisms ◽  
Periodontal Tissues ◽  
Periodontal Infection ◽  
Aerobic And Anaerobic

A healthy smile is one of the main components of a person’s attractiveness, which makes it possible to improve the quality of communication with others in a personal and social aspect. Dental health depends on the state of the periodontal complex. The vast majority of people of different ages suffer from periodontal disease and seek dental care. The significant prevalence, the adverse effect of foci of periodontal infection on the body, the large loss of teeth cause both medical and social significance of this problem. In this regard, the tasks for the treatment of inflammatory diseases of periodontal tissues are determined before the dentist. The treatment of gingivitis and periodontitis is a complex and lengthy process that requires a comprehensive approach from the dentist, finding new remedies and methods of treatment. The article presents the results of the treatment of chronic generalized periodontitis of moderate severity using the drug “Galavit”. After the course of treatment, the index indicators reflected the achievement of positive dynamics. The content of the total aerobic and anaerobic microflora of the periodontal pockets was eliminated 1.5 - 2 times. In the comparison group in the dynamics of treatment to the end of therapy, there was a decrease in the number of aerobic and anaerobic microorganisms to etiologically significant indicators. The results of the study indicate the superiority of the use of complex therapeutic measures with the use of the drug “Galavit” over the traditional treatment of chronic generalized periodontitis of moderate severity. It is proposed for practicing dentists to use the drug in question in a complex scheme for the treatment of periodontal tissue diseases, since this drug has shown its high clinical efficacy.

Aerobic and Anaerobic Biological Treatment and Characterization of Condensate Wastewaters from the Taciuk Oil Process

1992 ◽  
Vol 27 (4) ◽  
pp. 639-664 ◽  
Author(s):  
W.K. Bedford ◽  
H. Melcer
Keyword(s):  
Organic Carbon ◽  
Oil Sands ◽  
Toxicity Testing ◽  
Wastewater Sample ◽  
Related Phenomenon ◽  
Carbon Removal ◽  
Anaerobic Microorganisms ◽  
Aerobic And Anaerobic ◽  
Activated Sludge Systems

Abstract Bench-scale investigations were conducted at Environment Canada's Wastewater Technology Centre to assess the feasibility of using biological activated sludge systems to treat fractionator sour water (PW5) and processor preheat steam vent water (Preheat) from the AOSTRA Taciuk Process when applied to bitumen recovery from oil sands. The PW5 wastewater sample was approximately 10 times more concentrated with regard to COD, TOC and ammonia concentrations than the Preheat sample. Phosphorus was lacking in each wastewater. High levels of cyanide were present in the Preheat sample and high levels of zinc in the PW5 sample. Aerobic treatment of the Preheat wastewater was shown to be feasible with regard to organic carbon removal. At a sludge retention time (SRT) of 20 days and hydraulic retention times (HRTs) ranging from 0.9 to 2.4 days, organic carbon removal of the Preheat wastewater in terms of BOD5 was greater than 95%. Nitrification was also achieved with ammonia removals of greater than 95%. The PW5 treatment system, operated at a 20-day SRT and HRTs ranging from 5 to 10 days, achieved BOD5 removals of approximately 90%. However, residual carbon levels of approximately 200-400 mg/L remained in the effluent. The addition of powdered activated carbon at the 5-day HRT level did not significantly improve system performance. Excessive foaming and effluent suspended solids losses contributed to operating problems. Nitrification was not established, possibly due to high influent ammonia values. Anaerobic toxicity testing showed that the Preheat wastewater was a relatively weak substrate which did not inhibit anaerobic microorganisms. The PW5 wastewater was toxic to these organisms and this was a substrate concentration-related phenomenon.

scholarly journals Fourniers gangrene-A case report and literature review

2012 ◽  
Vol 7 (3) ◽  
pp. 62-67
Author(s):  
A Agarwal ◽  
A Karmacharaya ◽  
S Hirachan ◽  
WK Belokar
Keyword(s):  
Case Report ◽  
Soft Tissue ◽  
Broad Spectrum ◽  
Skin Grafting ◽  
Multiple Organ ◽  
Medical Sciences ◽  
Anaerobic Microorganisms ◽  
Broad Spectrum Antibiotics ◽  
Appropriate Therapy ◽  
Aerobic And Anaerobic

Fournier’s gangrene(FG) is a rare, necrotising fasciitis of the genitals and perineum with occasional cranial extension to the abdominal wall caused by a mixture of aerobic and anaerobic microorganisms. The complications of this synergistic infection are multiple organ failure and death. Due to the aggressive nature of this condition, early diagnosis is crucial. Treatment involves extensive soft tissue debridement and broad-spectrum antibiotics. Despite appropriate therapy, mortality is high. We report a case of a gentleman who presented with gangrenous and necrotic penile, scrotal and perineal areas. Patient was successfully managed by extensive soft tissue debridement, broad spectrum antibiotics and skin grafting. DOI: http://dx.doi.org/10.3126/jcmsn.v7i3.6713 Journal of College of Medical Sciences-Nepal, 2011, Vol-7, No-3, 62-67 

scholarly journals THE DISTRIBUTION AND CHARACTERISTIC OF MICROORGANISMS INVOLVED IN THE DESTRUCTION OF HYDROCARBONS IN MARINE SEDIMENTS (LITERATURE REVIEW)

2021 ◽  
pp. 58-65
Author(s):  
A.I. Eskova ◽  
◽  
A.L. Ponomareva ◽  
A.A. Legkodimov ◽  
R.B. Shakirov ◽  
...  
Keyword(s):  
Oil Fields ◽  
Sulfate Reducing ◽  
Anaerobic Microorganisms ◽  
Oxidation Of Hydrocarbons ◽  
Oil Hydrocarbons ◽  
Hyperthermophilic Bacteria ◽  
Denitrifying Microorganisms ◽  
The Relationship ◽  
Deep Sediments ◽  
Aerobic And Anaerobic

The review is devoted to the biodiversity of microorganisms capable of degrading oil hydrocarbons in sea deep sediments and their relationship with the accompanying microbiota, which includes sulfate-reducing and denitrifying prokaryotes. Particular attention is paid to the biodiversity of hydrocarbon-oxidizing bacteria, in particular thermo- and hyperthermophilic bacteria, in the areas of oil fields. Sulfate-reducing microorganisms are widespread in them. Some of them are capable not only of sulfate reduction, but also of hydrocarbon oxidation. Such microorganisms were generally classified in the Deltaproteobacterium class. The relationship between the number of oil-oxidizing and denitrifying microorganisms is most often presented in areas with a high anthropogenic load and in the coastal zone. Possible mechanisms of anaerobic oxidation of hydrocarbons and the coexistence of aerobic and anaerobic microorganisms in a single community are briefly considered.

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