scholarly journals Resistome analysis of bloodstream infection bacterial genomes reveals a specific set of proteins involved in antibiotic resistance and drug efflux

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Willian K Oliveira ◽  
Mariana Ferrarini ◽  
Luis G Morello ◽  
Helisson Faoro
Keyword(s):  
Antibiotic Resistance ◽  
Bacterial Resistance ◽  
Meta Analysis ◽  
Antibiotic Resistance Genes ◽  
Public Health Problem ◽  
Bloodstream Infections ◽  
Resistance Mechanisms ◽  
Global Public Health ◽  
Bacterial Genomes ◽  
Global Public Health Problem

Abstract Bacterial resistance to antibiotics is a global public health problem. Its association with bloodstream infections is even more severe and may easily evolve to sepsis. To improve our response to these bacteria, it is essential to gather thorough knowledge on the main pathogens along with the main mechanisms of resistance they carry. In this paper, we performed a large meta-analysis of 3872 bacterial genomes isolated from blood samples, from which we identified 71 745 antibiotic resistance genes (ARGs). Taxonomic analysis showed that Proteobacteria and Firmicutes phyla, and the species Klebsiella pneumoniae and Staphylococcus aureus were the most represented. Comparison of ARGs with the Resfams database showed that the main mechanism of antibiotic resistance is mediated by efflux pumps. Clustering analysis between resistome of blood and soil-isolated bacteria showed that there is low identity between transport and efflux proteins between bacteria from these environments. Furthermore, a correlation analysis among all features showed that K. pneumoniae and S. aureus formed two well-defined clusters related to the resistance mechanisms, proteins and antibiotics. A retrospective analysis has shown that the average number of ARGs per genome has gradually increased. The results demonstrate the importance of comprehensive studies to understand the antibiotic resistance phenomenon.

scholarly journals COVID-19 Lockdowns May Reduce Resistance Genes Diversity in the Human Microbiome and the Need for Antibiotics

2021 ◽  
Vol 22 (13) ◽  
pp. 6891
Author(s):  
João S. Rebelo ◽  
Célia P. F. Domingues ◽  
Francisco Dionisio ◽  
Manuel C. Gomes ◽  
Ana Botelho ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Resistance Genes ◽  
Pathogenic Bacteria ◽  
Bacterial Resistance ◽  
Human Microbiome ◽  
Antibiotic Resistance Genes ◽  
Public Health Problem ◽  
Small World ◽  
Physical Contact ◽  
Hygiene Measures

Recently, much attention has been paid to the COVID-19 pandemic. Yet bacterial resistance to antibiotics remains a serious and unresolved public health problem that kills hundreds of thousands of people annually, being an insidious and silent pandemic. To contain the spreading of the SARS-CoV-2 virus, populations confined and tightened hygiene measures. We performed this study with computer simulations and by using mobility data of mobile phones from Google in the region of Lisbon, Portugal, comprising 3.7 million people during two different lockdown periods, scenarios of 40 and 60% mobility reduction. In the simulations, we assumed that the network of physical contact between people is that of a small world and computed the antibiotic resistance in human microbiomes after 180 days in the simulation. Our simulations show that reducing human contacts drives a reduction in the diversity of antibiotic resistance genes in human microbiomes. Kruskal–Wallis and Dunn’s pairwise tests show very strong evidence (p < 0.000, adjusted using the Bonferroni correction) of a difference between the four confinement regimes. The proportion of variability in the ranked dependent variable accounted for by the confinement variable was η2 = 0.148, indicating a large effect of confinement on the diversity of antibiotic resistance. We have shown that confinement and hygienic measures, in addition to reducing the spread of pathogenic bacteria in a human network, also reduce resistance and the need to use antibiotics.

Global Public Health Problem: Hypertension

2021 ◽  
pp. 20-25
Author(s):  
Laxmidhar Moharana ◽  
Shakti Ketan Prusty
Keyword(s):  
Public Health ◽  
Risk Factors ◽  
Antibiotic Resistance ◽  
Health Problem ◽  
Public Health Problem ◽  
World Health ◽  
Global Public Health ◽  
Oral Flora ◽  
Hypertension Prevalence ◽  
Global Public Health Problem

Hypertension is a big global public health problem. This research concentrates on exploring hypertension prevalence and its related causes in a Yemetu community located at Oyo States’ local in Nigeria. Hypertension is one of the most significant risk factor for cardiovascular disease. Growing on hydroxyl-butyrate as the primary source of carbon and nitrogen offered a strong competition for clones carrying new degrading enzymes, and antibiotic resistance competition established new determinants of antibiotic resistance from soil and oral flora. A descriptive & cross-sectional design was referred. Research included 804 participants of 171 households aged 18-90 years, chosen by cluster sampling methodology. It was a survey of the building to the building. World Health Organization (WHO) used STEP smart approach for tracking risk factors for chronic diseases (STEPS 1 & 2) to assess behavioral risk factors. Systolic blood pressure was described as hypertension. Overall hypertension prevalence was 33.1 percent (36.8 percent for males and 31.1 percent for females). The percentage of hypertension that is self-reported is 12.2%, as anti-hypertensive treatment actually accounted for 5.1%. The respondents mean age is 38.7 ±14.5 years. Respondents' BMI found to be 6.3%, 53.0%, 30.5% and 14.2% respectively for underweight, average, overweight and obese.

scholarly journals Replication Dynamics for Six Gram-Negative Bacterial Species during Bloodstream Infection

mBio ◽  
2021 ◽  
Author(s):  
Mark T. Anderson ◽  
Aric N. Brown ◽  
Ali Pirani ◽  
Sara N. Smith ◽  
Amanda L. Photenhauer ◽  
...  
Keyword(s):  
Public Health ◽  
Bloodstream Infection ◽  
Health Problem ◽  
Bacterial Species ◽  
Public Health Problem ◽  
Bloodstream Infections ◽  
Global Public Health ◽  
Gram Negative ◽  
Global Public Health Problem

Bloodstream infections are a global public health problem. The goal of this work was to determine the replication characteristics of Gram-negative bacterial species in the host following bloodstream infection.

4H-1,3-Benzothiazin-4-one a Promising Class Against MDR/XDR-TB

2019 ◽  
Vol 19 (8) ◽  
pp. 567-578 ◽  
Author(s):  
Marcus Vinicius Nora de Souza ◽  
Thais Cristina Mendonça Nogueira
Keyword(s):  
Treatment Time ◽  
Public Health Problem ◽  
New Drugs ◽  
Global Public Health ◽  
Synthesis Mechanism ◽  
Highly Active ◽  
Latent Disease ◽  
Resistant Strains ◽  
Chemical Class ◽  
Global Public Health Problem

Nowadays, tuberculosis (TB) is an important global public health problem, being responsible for millions of TB-related deaths worldwide. Due to the increased number of cases and resistance of Mycobacterium tuberculosis to all drugs used for the treatment of this disease, we desperately need new drugs and strategies that could reduce treatment time with fewer side effects, reduced cost and highly active drugs against resistant strains and latent disease. Considering that, 4H-1,3-benzothiazin-4-one is a promising class of antimycobacterial agents in special against TB-resistant strains being the aim of this review the discussion of different aspects of this chemical class such as synthesis, mechanism of action, medicinal chemistry and combination with other drugs.

scholarly journals A Systematic Review and Meta-Analysis of Pharmacogenetic Studies in Patients with Chronic Kidney Disease

2021 ◽  
Vol 22 (9) ◽  
pp. 4480
Author(s):  
Maria Tziastoudi ◽  
Georgios Pissas ◽  
Georgios Raptis ◽  
Christos Cholevas ◽  
Theodoros Eleftheriadis ◽  
...  
Keyword(s):  
Systematic Review ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Meta Analysis ◽  
Public Health Problem ◽  
Response To Treatment ◽  
Genotype Distribution ◽  
Global Public Health ◽  
High Prevalence ◽  
Additive Inheritance

Chronic kidney disease (CKD) is an important global public health problem due to its high prevalence and morbidity. Although the treatment of nephrology patients has changed considerably, ineffectiveness and side effects of medications represent a major issue. In an effort to elucidate the contribution of genetic variants located in several genes in the response to treatment of patients with CKD, we performed a systematic review and meta-analysis of all available pharmacogenetics studies. The association between genotype distribution and response to medication was examined using the dominant, recessive, and additive inheritance models. Subgroup analysis based on ethnicity was also performed. In total, 29 studies were included in the meta-analysis, which examined the association of 11 genes (16 polymorphisms) with the response to treatment regarding CKD. Among the 29 studies, 18 studies included patients with renal transplantation, 8 involved patients with nephrotic syndrome, and 3 studies included patients with lupus nephritis. The present meta-analysis provides strong evidence for the contribution of variants harbored in the ABCB1, IL-10, ITPA, MIF, and TNF genes that creates some genetic predisposition that reduces effectiveness or is associated with adverse events of medications used in CKD.

scholarly journals Nitric oxide (NO) elicits aminoglycoside tolerance in Escherichia coli but antibiotic resistance gene carriage and NO sensitivity have not co-evolved

2021 ◽  
Author(s):  
Cláudia A. Ribeiro ◽  
Luke A. Rahman ◽  
Louis G. Holmes ◽  
Ayrianna M. Woody ◽  
Calum M. Webster ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Antibiotic Resistance ◽  
Antibiotic Susceptibility ◽  
Bacterial Pathogens ◽  
Antibiotic Resistance Gene ◽  
Antibiotic Resistance Genes ◽  
Resistance Mechanisms ◽  
Current Work ◽  
E Coli ◽  
Respiratory Inhibitor

AbstractThe spread of multidrug-resistance in Gram-negative bacterial pathogens presents a major clinical challenge, and new approaches are required to combat these organisms. Nitric oxide (NO) is a well-known antimicrobial that is produced by the immune system in response to infection, and numerous studies have demonstrated that NO is a respiratory inhibitor with both bacteriostatic and bactericidal properties. However, given that loss of aerobic respiratory complexes is known to diminish antibiotic efficacy, it was hypothesised that the potent respiratory inhibitor NO would elicit similar effects. Indeed, the current work demonstrates that pre-exposure to NO-releasers elicits a > tenfold increase in IC50 for gentamicin against pathogenic E. coli (i.e. a huge decrease in lethality). It was therefore hypothesised that hyper-sensitivity to NO may have arisen in bacterial pathogens and that this trait could promote the acquisition of antibiotic-resistance mechanisms through enabling cells to persist in the presence of toxic levels of antibiotic. To test this hypothesis, genomics and microbiological approaches were used to screen a collection of E. coli clinical isolates for antibiotic susceptibility and NO tolerance, although the data did not support a correlation between increased carriage of antibiotic resistance genes and NO tolerance. However, the current work has important implications for how antibiotic susceptibility might be measured in future (i.e. ± NO) and underlines the evolutionary advantage for bacterial pathogens to maintain tolerance to toxic levels of NO.

A REVIEW ON GLOBAL TRENDS IN HEART FAILURE AND EVOLUTION OF ANGIOTENSIN–NEPRILYSIN INHIBITOR

2020 ◽  
pp. 32-37
Author(s):  
VEERENDRA UPPARA ◽  
SAISEKHAR KODIVANDLA ◽  
ASHIK ALI SHAIK
Keyword(s):  
Heart Failure ◽  
Public Health Problem ◽  
Global Public Health ◽  
Middle Income ◽  
Global Trends ◽  
Middle Income Countries ◽  
Health Loss ◽  
Neprilysin Inhibitor ◽  
Health Related ◽  
Global Public Health Problem

Heart failure (HF) is a major global public health problem irrespective of its causes. It generates an enormous clinical, societal, and economic, health loss burden with an increase in its prevalence reaching an epidemic proportion. The morbidity and mortality associated with heart failure are increasing the health-related burdens worldwide, especially in low- and middle-income countries. This review highlights the trends in HF burden, the clinical spectrum of HF, and the importance of neurohormonal pathways and the evolution of angiotensin receptor neprilysin inhibition in HF with updated clinical practice guidelines.

scholarly journals Medication Error in Anaesthesia – A Review

2016 ◽  
Vol 27 (1) ◽  
pp. 31-35
Author(s):  
Montosh Kumar Mondal ◽  
Beauty Rani Roy ◽  
Shibani Banik ◽  
Debabrata Banik
Keyword(s):  
Public Health ◽  
Risk Factors ◽  
Medication Error ◽  
Medication Errors ◽  
Health Problem ◽  
Preventive Measures ◽  
Medical Profession ◽  
Public Health Problem ◽  
Global Public Health ◽  
Global Public Health Problem

Medication error is a major cause of morbidity and mortality in medical profession . There is an increasing recognition that medication errors are causing a substantial global public health problem, as many result in harm to patients and increased costs to health providers.Anaesthesia is now safe and routine, yet anaesthetists are not immune from making medication errors and the consequences of their mistakes may be more serious than those of doctors in other specialties. Steps are being taken to determine the extent of the problem of medication error in anaesthesia. In this review, incidence, types, risk factors and preventive measures of the medication errors are discussed in detail.Journal of Bangladesh Society of Anaesthesiologists 2014; 27(1): 31-35

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