scholarly journals Antibiotics in hives and their effects on honey bee physiology and behavioral development

Biology Open ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. bio053884 ◽  
Author(s):  
Yarira Ortiz-Alvarado ◽  
David R. Clark ◽  
Carlos J. Vega-Melendez ◽  
Zomary Flores-Cruz ◽  
Maria G. Domingez-Bello ◽  
...  
Keyword(s):  
Honey Bee ◽  
Bacterial Infections ◽  
Fat Body ◽  
Age Of Onset ◽  
Antibiotic Use ◽  
Behavioral Development ◽  
Human Interventions ◽  
And Behavior ◽  
The Impact

ABSTRACTRecurrent honeybee losses make it critical to understand the impact of human interventions, such as antibiotic use in apiculture. Antibiotics are used to prevent or treat bacterial infections in colonies. However, little is known about their effects on honeybee development. We studied the effect of two commercial beekeeping antibiotics on the bee physiology and behavior throughout development. Our results show that antibiotic treatments have an effect on amount of lipids and rate of behavioral development. Lipid amount in treated bees was higher than those not treated. Also, the timing of antibiotic treatment had distinct effects for the age of onset of behaviors, starting with cleaning, then nursing and lastly foraging. Bees treated during larva-pupa stages demonstrated an accelerated behavioral development and loss of lipids, while bees treated from larva to adulthood had a delay in behavioral development and loss of lipids. The effects were shared across the two antibiotics tested, TerramycinR (oxytetracycline) and TylanR (tylosin tartrate). These effects of antibiotic treatments suggest a role of microbiota in the interaction between the fat body and brain that is important for honeybee behavioral development.This paper has an associated First Person interview with the first author of the article.

scholarly journals Investigating the impact of combination phage and antibiotic therapy: a modeling study

2020 ◽  
Author(s):  
Selenne Banuelos ◽  
Hayriye Gulbudak ◽  
Mary Ann Horn ◽  
Qimin Huang ◽  
Aadrita Nandi ◽  
...  
Keyword(s):  
Immune System ◽  
Combination Therapy ◽  
Bacterial Infections ◽  
Phage Therapy ◽  
Antibiotic Use ◽  
Host Immune System ◽  
Drug Classes ◽  
The Impact ◽  
Antibiotic Combination

AbstractAntimicrobial resistance (AMR) is a serious threat to global health today. The spread of AMR, along with the lack of new drug classes in the antibiotic pipeline, has resulted in a renewed interest in phage therapy, which is the use of bacteriophages to treat pathogenic bacterial infections. This therapy, which was successfully used to treat a variety of infections in the early twentieth century, had been largely dismissed due to the discovery of easy to use antibiotics. However, the continuing emergence of antibiotic resistance has motivated new interest in the use of phage therapy to treat bacterial infections. Though various models have been developed to address the AMR-related issues, there are very few studies that consider the effect of phage-antibiotic combination therapy. Moreover, some of biological details such as the effect of the immune system on phage have been neglected. To address these limitations, we utilized a mathematical model to examine the role of the immune response in concert with phage-antibiotic combination therapy compounded with the effects of the immune system on the phages being used for treatment. We explore the effect of phage-antibiotic combination therapy by adjusting the phage and antibiotics dose or altering the timing. The model results show that it is important to consider the host immune system in the model and that frequency and dose of treatment are important considerations for the effectiveness of treatment. Our study can lead to development of optimal antibiotic use and further reduce the health risks of the human-animal-plant-ecosystem interface caused by AMR.

The Impact of COVID-19 Quarantine on Children‘s Behaviors and Language

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 796-806
Author(s):  
Sana M Kamal ◽  
Ali Al-Samydai ◽  
Rudaina Othman Yousif ◽  
Talal Aburjai
Keyword(s):  
Social Relations ◽  
Child Psychology ◽  
Simple Random Sample ◽  
Community Pharmacies ◽  
The World ◽  
Female Children ◽  
And Behavior ◽  
The Impact ◽  
Pharmaceutical Interventions

COVID-19 pandemic has spread across the world, which considered a relative of the severe acute respiratory syndrome (SARS), with possibility of transmission from animals to human and effect each of health and economic. Several preventative strategies and non-pharmaceutical interventions have been used to slow down the spread of COVID-19. The questionnaire contained 36 questions regarding the impact of COVID-19 quarantine on children`s behaviors and language have been distributed online (Google form). Data collected after asking parents about their children behavior during quarantine, among the survey completers (n=469), 42.3% were female children, and 57.7 were male children. Results showed that quarantine has an impact on children`s behaviors and language, where stress and isolationism has a higher effect, while social relations had no impact. The majority of the respondents (75.0%) had confidence that community pharmacies can play an important role in helping families in protection their children`s behaviors and language as they made the highest contact with pharmacists during quarantine. One of the main recommendations that could be applied to help parents protection and improvement their children`s behaviors and language in quarantine condition base on simple random sample opinion is increasing the role of community pharmacies inpatient counseling and especially towards children after giving courses to pharmacists in child psychology and behavior. This could be helpful to family to protect their children, from any changing in them behaviors and language in such conditions in the future if the world reface such the same problem.

scholarly journals How reliable is procalcitonin as an inflammatory marker?1)

2012 ◽  
Vol 35 (6) ◽  
pp. ---
Author(s):  
Katharina Biller ◽  
Peter Fae ◽  
Reinhard Germann ◽  
Autar K. Walli ◽  
Peter Fraunberger
Keyword(s):  
Intensive Care ◽  
Diagnostic Tool ◽  
Plasma Levels ◽  
Bacterial Infections ◽  
Respiratory Tract Infections ◽  
Inflammatory Marker ◽  
Antibiotic Use ◽  
Intensive Care Patients ◽  
Tract Infections

Abstract The role of procalcitonin (PCT) plasma levels as a diagnostic tool for intensive care patients has been intensively investigated during the past years. In particular for recognition of bacterial infections, PCT levels have been shown to be superior to other clinical and biochemical markers. Furthermore, some very recent studies show that in patients with lower respiratory tract infections PCT guided antibiotic therapy reduces antibiotic use and thereby may also reduce duration of stay of patients in hospital and thus cut hospitalisation costs. However, various studies indicate that the value of PCT as a prognostic marker is limited because of false positive or negative values. Despite these limitations PCT plasma levels are currently measured in intensive care units. The present study summarises the possible clinical uses of this laboratory marker as a diagnostic tool for the assessment of critically ill patients.

scholarly journals Risk factors for respiratory Aspergillus fumigatus in German Cystic Fibrosis patients and impact on lung function

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Uta Düesberg ◽  
Julia Wosniok ◽  
Lutz Naehrlich ◽  
Patience Eschenhagen ◽  
Carsten Schwarz
Keyword(s):  
Risk Factors ◽  
Cystic Fibrosis ◽  
Lung Function ◽  
Aspergillus Fumigatus ◽  
Age Groups ◽  
Antibiotic Use ◽  
Lower Lung ◽  
Lung Infections ◽  
The Impact

Abstract Airway inflammation and chronic lung infections in cystic fibrosis (CF) patients are mostly caused by bacteria, e.g. Pseudomonas aeruginosa (PA). The role of fungi in the CF lung is still not well elucidated, but evidence for a harmful and complex role is getting stronger. The most common filamentous fungus in CF is Aspergillus fumigatus (AF). Age and continuous antibiotic treatment have been discussed as risk factors for AF colonisation but did not differentiate between transient and persistent AF colonisation. Also, the impact of co-colonisation of PA and AF on lung function is still under investigation. Data from patients with CF registered in the German Cystic Fibrosis Registry database in 2016 and 2017 were retrospectively analysed, involving descriptive and multivariate analysis to assess risk factors for transient or persistent AF colonisation. Age represented an independent risk factor for persistent AF colonisation. Prevalence was low in children less than ten years, highest in the middle age and getting lower in higher age (≥ 50 years). Continuous antibiotic lung treatment was significantly associated with AF prevalence in all age groups. CF patients with chronic PA infection had a lower lung function (FEV1%predicted), which was not influenced by an additional AF colonisation. AF colonisation without chronic PA infection, however, was significantly associated with a lower function, too. Older age up to 49 years and continuous antibiotic use were found to be the main risk factors for AF permanent colonisation. AF might be associated with decrease of lung function if not disguised by chronic PA infection.

scholarly journals Role of Renal Drug Exposure in Polymyxin B-Induced Nephrotoxicity

2017 ◽  
Vol 61 (4) ◽  
Author(s):  
Pooja Manchandani ◽  
Jian Zhou ◽  
Jessica T. Babic ◽  
Kimberly R. Ledesma ◽  
Luan D. Truong ◽  
...  
Keyword(s):  
Bacterial Infections ◽  
Drug Exposure ◽  
Polymyxin B ◽  
Multidrug Resistant ◽  
Renal Tissue ◽  
Sprague Dawley ◽  
Electron Microscopic ◽  
Drug Concentrations ◽  
The Impact

ABSTRACT Despite dose-limiting nephrotoxic potentials, polymyxin B has reemerged as the last line of therapy against multidrug-resistant Gram-negative bacterial infections. However, the handling of polymyxin B by the kidneys is still not thoroughly understood. The objectives of this study were to evaluate the impact of renal polymyxin B exposure on nephrotoxicity and to explore the role of megalin in renal drug accumulation. Sprague-Dawley rats (225 to 250 g) were divided into three dosing groups, and polymyxin B was administered (5 mg/kg, 10 mg/kg, and 20 mg/kg) subcutaneously once daily. The onset of nephrotoxicity over 7 days and renal drug concentrations 24 h after the first dose were assessed. The effects of sodium maleate (400 mg/kg intraperitoneally) on megalin homeostasis were evaluated by determining the urinary megalin concentration and electron microscopic study of renal tissue. The serum/renal pharmacokinetics of polymyxin B were assessed in megalin-shedding rats. The onset of nephrotoxicity was correlated with the daily dose of polymyxin B. Renal polymyxin B concentrations were found to be 3.6 ± 0.4 μg/g, 9.9 ± 1.5 μg/g, and 21.7 ± 4.8 μg/g in the 5-mg/kg, 10-mg/kg, and 20-mg/kg dosing groups, respectively. In megalin-shedding rats, the serum pharmacokinetics of polymyxin B remained unchanged, but the renal exposure was attenuated by 40% compared to that of control rats. The onset of polymyxin B-induced nephrotoxicity is correlated with the renal drug exposure. In addition, megalin appears to play a pivotal role in the renal accumulation of polymyxin B, which might contribute to nephrotoxicity.

scholarly journals Impact of an antimicrobial resistance control program: pre- and post-training antibiotic use in children with typhoid fever

2016 ◽  
Vol 56 (4) ◽  
pp. 205 ◽  
Author(s):  
Elfrida A. Rachmah ◽  
Maftuchah Rochmanti ◽  
Dwiyanti Puspitasari
Keyword(s):  
Antimicrobial Resistance ◽  
Typhoid Fever ◽  
Bacterial Infections ◽  
Good Condition ◽  
Antibiotic Use ◽  
Appropriate Use ◽  
Cross Sectional ◽  
Pediatric Residents ◽  
The Impact

Inappropriate use of antibiotics may lead to antimicrobial resistance. In 2012, Dr. Soetomo Hospital conducted training for pediatric residents on the proper use of antibiotics to limit antimicrobial resistance.Objective To evaluate the impact of a rational, antibiotic-use training program for pediatric residents on their antibiotic prescriptions for patients with typhoid fever.Methods A cross-sectional, analytic study was conducted. We collected data from children with typhoid fever who were hospitalized in Dr. Soetomo Hospital, pre- and post-training on antibiotic prescriptions. Children with other known bacterial infections or who were discharged on request were excluded. Antibiotic prescriptions were evaluated using Gyssens algorithm based on the local protocol. Chi-square test was used to compare the quality of antibiotic prescriptions, before (year 2012) and after (year 2013) the training.Results Forty-nine patients with 67 prescriptions in 2012 and 34 patients with 48 prescriptions in 2013 fulfilled the inclusion criteria. Patients’ ages ranged from 1-18 years. Diagnoses of uncomplicated and complicated typhoid were found in 74% and 26% of subjects, respectively. First line (chloramphenicol, thiamphenicol, ampicillin, trimetroprim and sulfametoxazol) and second line (ceftriaxone and cefixime) use were 72% and 28%, respectively. All patients were discharged in good condition. Appropriate use of antibiotics was noted in 61% of subjects in 2012 and in 81% of subjects in 2013 (P=0.036). The most common type of error in 2012 and 2013 was dosage imprecision (25% and 17%, respectively).Conclusion Training on appropriate use of antibiotics significantly improved the quality of antibiotics prescribed in children with typhoid fever in Dr. Soetomo Hospital.

scholarly journals Understanding the Role of Rural Poor’s Endogenous Impetus in Poverty Reduction: Evidence from China

2020 ◽  
Vol 12 (6) ◽  
pp. 2487 ◽  
Author(s):  
Jing Liu ◽  
Fubin Huang ◽  
Zihan Wang ◽  
Chuanmin Shuai ◽  
Jiaxin Li
Keyword(s):  
Poverty Reduction ◽  
Field Survey ◽  
Positive Impact ◽  
Physical Capital ◽  
The Poor ◽  
Partial Least Squares Model ◽  
External Conditions ◽  
And Behavior ◽  
The Impact

Motivating the endogenous impetus of the poor to eradicate poverty is an endogenous dilemma that is difficult to solve using the current external poverty alleviation model. In this paper, based on the field survey data of 1112 poor rural households in China, we examine the impact of the poor’s endogenous impetus on their poverty reduction. Firstly, we identify two different components of endogenous impetus: thought impetus and behavior impetus. Secondly, the poverty reduction (livelihood status) of farmers was used as an endogenous variable to construct a partial least squares model to verify our explanation of the role of endogenous impetus of the poor in poverty reduction. The results indicate that (1) both thought impetus and behavior impetus have a positive impact on the livelihood status of the poor; (2) the human capital, physical capital, and social capital of the poor have a positive relationship with the two components of endogenous impetus; and (3) endogenous impetus plays a mediation role between livelihood capital and livelihood status. As expected, human and physical capital have a positive and significant relationship with poverty reduction. The important enlightenment of this study is that it is very important to motivate the poor’s endogenous impetus of escaping poverty in addition to improving external conditions such as livelihood capital owned by farmers in an effort to realize sustainable poverty reduction.

Deviant Pornography Use

2019 ◽  
pp. 210-235
Author(s):  
Kathryn C. Seigfried-Spellar
Keyword(s):  
Age Of Onset ◽  
Child Pornography ◽  
Early Exposure ◽  
Internet Pornography ◽  
Wide Range ◽  
Sexually Explicit ◽  
Pornography Use ◽  
The Impact ◽  
The Relationship

The impact of both intentional and unintentional exposure to internet pornography on adolescents has been debated in the literature for decades. However, the differences in the operational definitions of pornography and exposure, not to mention the differences in methodology and sampling, make it difficult to synthesize findings and identify patterns across studies. In addition, the majority of the research has employed a rather broad measure of “exposure to general pornography” by adolescents in order to understand the impact of early exposure to pornography; however, internet pornography includes a wide range of sexually explicit materials, not just adult pornography. Thus, the goal of this chapter is to explore the relationship between nondeviant pornography use and deviant pornography use (e.g., child pornography) by discussing the Seigfried-Spellar study which examined the role of individual differences and age of onset in deviant pornography use.

scholarly journals Probing the Honey Bee Diet-Microbiota-Host Axis Using Pollen Restriction and Organic Acid Feeding

Insects ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 291
Author(s):  
Vincent A. Ricigliano ◽  
Kirk E. Anderson
Keyword(s):  
Organic Acid ◽  
Honey Bee ◽  
Expression Patterns ◽  
Feeding Behaviors ◽  
Fermentation Products ◽  
Bacterial Fermentation ◽  
Bee Health ◽  
Gene Transcripts ◽  
The Impact

Microbial metabolites are considered important drivers of diet-based microbiota influence on the host, however, mechanistic models are confounded by interactions between diet, microbiota function, and host physiology. The honey bee harbors a simple microbiota that produces organic acids as fermentation products of dietary nectar and pollen, making it a model for gut microbiota research. Herein, we demonstrate that bacterial abundance in the honey bee gut is partially associated with the anterior rectum epithelium. We used dietary pollen restriction and organic acid feeding treatments to obtain information about the role of undigested pollen as a microbiota growth substrate and the impact of bacterial fermentation products on honey bee enteroendocrine signaling. Pollen restriction markedly reduced total and specific bacterial 16S rRNA abundance in the anterior rectum but not in the ileum. Anterior rectum expression levels of bacterial fermentative enzyme gene transcripts (acetate kinase, lactate dehydrogenase, and hydroxybutyryl-CoA dehydrogenase) were reduced in association with diet-induced microbiota shifts. To evaluate the effects of fermentative metabolites on host enteroendocrine function, pollen-restricted bees were fed an equimolar mixture of organic acid sodium salts (acetate, lactate, butyrate, formate, and succinate). Organic acid feeding significantly impacted hindgut enteroendocrine signaling gene expression, rescuing some effects of pollen restriction. This was specifically manifested by tissue-dependent expression patterns of neuropeptide F and allatostatin pathways, which are implicated in energy metabolism and feeding behaviors. Our findings provide new insights into the diet-microbiota-host axis in honey bees and may inform future efforts to improve bee health through diet-based microbiota manipulations.

scholarly journals Quantifying the impact of treatment history on plasmid-mediated resistance evolution in human gut microbiota

2019 ◽  
Vol 116 (46) ◽  
pp. 23106-23116 ◽  
Author(s):  
Burcu Tepekule ◽  
Pia Abel zur Wiesch ◽  
Roger D. Kouyos ◽  
Sebastian Bonhoeffer
Keyword(s):  
Antibiotic Resistance ◽  
Gut Microbiota ◽  
Drug Exposure ◽  
Center Of Mass ◽  
Antibiotic Use ◽  
Resistance Evolution ◽  
Treatment History ◽  
Resistant Infection ◽  
The Impact

To understand how antibiotic use affects the risk of a resistant infection, we present a computational model of the population dynamics of gut microbiota including antibiotic resistance-conferring plasmids. We then describe how this model is parameterized based on published microbiota data. Finally, we investigate how treatment history affects the prevalence of resistance among opportunistic enterobacterial pathogens. We simulate treatment histories and identify which properties of prior antibiotic exposure are most influential in determining the prevalence of resistance. We find that resistance prevalence can be predicted by 3 properties, namely the total days of drug exposure, the duration of the drug-free period after last treatment, and the center of mass of the treatment pattern. Overall this work provides a framework for capturing the role of the microbiome in the selection of antibiotic resistance and highlights the role of treatment history for the prevalence of resistance.

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