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15,627 result(s) for "resistance trends"
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Effects of home-based exercise on pre-dialysis chronic kidney disease patients: a randomized pilot and feasibility trial
Background Only a few research is available on the effects of home-based exercise training on pre-dialysis chronic kidney disease (CKD) patients. Therefore, we aimed to elucidate the effect of home-based exercise therapy on kidney function and arm and leg muscle strength in pre-dialysis CKD patients. Methods Thirty-six male stage 3–4 pre-dialysis CKD patients (age, 68.7 ± 6.8 years; estimated glomerular filtration rate (eGFR), 39.0 ± 11.6 ml/min/1.73 m 2 ) who were being treated as outpatients were included. The subjects were randomly assigned to an exercise intervention group (Ex group: 18) and a control group (C group: 18). The Ex group wore accelerometer pedometers and were instructed to perform home-based aerobic and resistance exercises, such as brisk walking for 30 min per day, for 12 months. The C group subjects wore accelerometer pedometers but received no exercise therapy guidance; the number of steps covered during normal daily activities was recorded for the C group. The outcome measures were changes in kidney function and handgrip and knee extension muscle strength. Values at the baseline (T1) and 12 months later (T2) were compared. Results There were no significant differences in baseline characteristics between the two groups; however, the C group was more physically active than the Ex group. Eight subjects dropped out, and 28 subjects (14 in each group) were included in the final analysis. Physical activity increased significantly only in the Ex group. Grip strength (F = 7.0, p  = 0.01) and knee extension muscle strength (F = 14.3, p  < 0.01) were found to improve only in the Ex group. Further, the changes in eGFR were not significantly different between the two groups (F = 0.01, p  = 0.93). Conclusions Home-based exercise therapy for pre-dialysis CKD patients was feasible and improved arm and leg muscle strength without affecting kidney function. Trial registration UMIN Clinical Trials Registry ( UMIN000005091 ). Registered 2/15/2011.
No long-term benefits from resistance training on brain grey matter volumes in active older adults at retirement age
Background Resistance training and other forms of physical exercise are commonly suggested to promote brain health, yet the relationship between resistance training and brain structure in aging is poorly understood. We examined the short- and long-term influence of one year of supervised resistance training at two different loadings on brain structure in aging. Methods In the LISA (LIve active Successful Ageing) study, well-functioning older adults at retirement age (mean age: 66 ± 2 years) were randomized to one year of heavy resistance training (HRT), moderate intensity training (MIT), or a non-exercising control group (CON). Magnetic resonance imaging (MRI) of the brain was performed at baseline, 1-, 2-, and 4-years follow ups. Trajectories of total grey matter, hippocampus, dorsolateral prefrontal cortex (dlPFC), ventrolateral prefrontal cortex (vlPFC), and white matter hyperintensities were analyzed in relation to changes in muscle strength. Results Individuals ( n  = 276) with MRI scans at all 4 timepoints were included (HRT, n  = 96; MIT, n  = 95; CON, n  = 85). Total grey matter volume decreased with time across all groups (F 3,819  = 231.549, p  < 0.001, η 2 = 0.46), as did hippocampal (F 3,819  = 310.07, p  < 0.001, η 2 = 0.53), vlPFC (F 3,818  = 74.380, p  < 0.001, η 2 = 0.21), and dlPFC (F 3,818  = 3.640, p = 0.013, η 2 = 0.01) volumes. White matter hyperintensity volumes increased (F 3,819  = 101.876, p  < 0.001, η 2 = 0.27). There were no significant group x time interactions for any of the brain structures. Additional cortical and subcortical vertex-wise analyses showed no group differences. Change in isometric leg strength was weakly associated with change in white matter hyperintensity volume across all individuals (r 2  = 0.01, p  = 0.048). Conclusions One year of resistance training in well-functioning older adults at retirement age did not influence volume changes in selected brain regions over a 4-year period. Trial registration The study was approved by the regional ethics committee and registered on clinicaltrials.gov 2014–04-24 (NCT02123641).
Trends in Antimicrobial Resistance against Enterobacteriaceae Strains Isolated from Blood
Antimicrobial resistance is a serious problem that compromises the empirical treatment of infections, resulting in a lack of effective antibiotics and high medical expenses. Here, we aimed to monitor the trends in antimicrobial resistance among Enterobacteriaceae isolated from blood samples in mainland China. A total of 2240 Enterobacteriaceae isolates from blood were collected from hospitalized patients at 19 tertiary hospitals between October 2004 and June 2014. The minimum inhibitory concentrations of all isolates were determined using the agar dilution method according to the Clinical and Laboratory Standards Institute 2016 guidelines. The most commonly isolated bacteria were Escherichia coli, compromising 47.0% (1053/2240) of the total isolates, followed by Klebsiella spp. (26.3%), Salmonella spp. (10.4%), and Enterobacter spp. (9.2%). The detection rates of extended-spectrum β-lactamases (ESBLs) among E. coli were 68.9% (2004-2005), 73.2% (2007-2008), 67.9% (2009-2010), 72.6% (2011-2012), and 58.4% (2013-2014), whereas those in ESBL-producing Klebsiella pneumoniae were slightly decreased (75.9%, 50.0%, 41.4%, 40.2%, and 43.0%, respectively). Carbapenems were the most potent agents against the Enterobacteriaceae isolates, followed by moxalactam, tigecycline, and amikacin. However, there was a decrease in the susceptibility rates for carbapenems in all species, particularly K. pneumoniae(decreased by 10.6% for imipenem) and Enterobacter aerogenes (decreased by 21.1% for imipenem). Reviving antibiotics (tigecycline and polymyxins) showed good in vitro activity against Enterobacteriaceae. The activity of antibiotics against Enterobacteriaceae isolated from blood was decreased overall. Large proportions of ESBL-producing isolates were identified among E. coli and Klebsiella spp. Carbapenem-resistant isolates have become a major challenge in the treatment of infections.
Improvements in gait characteristics after intensive resistance and functional training in people with dementia: a randomised controlled trial
Background Preventing and rehabilitating gait disorders in people with dementia during early disease stage is of high importance for staying independent and ambulating safely. However, the evidence gathered in randomized controlled trials (RCTs) on the effectiveness of exercise training for improving spatio-temporal gait parameters in people with dementia is scarce. The aim of the present study was to determine whether a specific, standardized training regimen can improve gait characteristics in people with dementia. Methods Sixty-one individuals (mean age: 81.9 years) with confirmed mild to moderate stage dementia took part in a 3-month double-blinded outpatient RCT. Subjects in the intervention group (IG) received supervised, progressive resistance and functional group training for 3 months (2 times per week for two hours) specifically developed for people with dementia. Subjects in the control group (CG) conducted a low-intensity motor placebo activity program. Gait characteristics were measured before and after the intervention period using a computerized gait analysis system (GAITRite®). Results Adherence to the intervention was excellent, averaging 91.9% in the IG and 94.4% in the CG. The exercise training significantly improved gait speed (P < 0.001), cadence (P = 0.002), stride length (P = 0.008), stride time (P = 0.001), and double support (P = 0.001) in the IG compared to the CG. Effect sizes were large for all gait parameters that improved significantly (Cohen’s d: 0.80-1.27). No improvements were found for step width (P = 0.999), step time variability (P = 0.425) and Walk-Ratio (P = 0.554). Interestingly, low baseline motor status, but not cognitive status, predicted positive training response (relative change in gait speed from baseline). Conclusion The intensive, dementia-adjusted training was feasible and improved clinically meaningful gait variables in people with dementia. The exercise program may represent a model for preventing and rehabilitating gait deficits in the target group. Further research is required for improving specific gait characteristics such as gait variability in people with dementia. Trial registration ISRCTN49243245
Could wastewater-based surveillance be key to combating antimicrobial resistance?
Antimicrobial resistance (AMR) is one of the most urgent health threats of the 21st century. Surveillance is needed to enable timely interventions, close knowledge gaps, and anticipate long-term trends. Current frameworks rely heavily on clinical data, which often fail to capture population-level dynamics. Wastewater-based surveillance (WBS) offers a complementary approach by detecting antibiotic resistance genes (ARGs) in sewage. In AMR surveillance, early warning includes the detection of novel or clinically relevant ARGs, including those carried by mobile genetic elements (MGEs) before they affect clinical outcomes. WBS can also reveal resistome composition, dissemination routes, and ecological drivers of AMR. This is especially relevant in settings with poor sanitation, high exposure, and limited clinical reporting. Unlocking its potential will require harmonized protocols, sustained investment, and strong ethical measures. Within a One Health framework, WBS can strengthen equitable and evidence-based strategies against AMR.
Effects of β-hydroxy-β-methylbutyrate (HMB) supplementation in addition to multicomponent exercise in adults older than 70 years living in nursing homes, a cluster randomized placebo-controlled trial: the HEAL study protocol
Background Evidence supports the fact that multicomponent exercise and HMB supplementation are, separately, effective in improving older adult’s health and palliate functional metabolic diseases in older people. However, the true effect of HMB supplementation combined with a tailored exercise program in frail older adults is still unknown. Thus, the aim of the HEAL (HMB + Exercise = Adults Living longer) study is to assess the effects of the combination of a daily multicomponent exercise and resistance training (VIVIFRAIL program) intervention in addition to HMB supplementation on older adults’ health. Methods/design A 24-week cluster randomized, double-blind, placebo-controlled study will be conducted on 104 adults ≥70 years. Nursing homes will be randomized to either of four groups: Ex-HMB (exercise intervention with HMB), Ex-Plac (exercise intervention with placebo), NoEx-HMB (no exercise intervention with HMB), and Controls (No exercise and no HMB). Intervention groups which include exercise will complete the individualized multicomponent (strength, balance and cardiovascular exercises) training program VIVIFRAIL. Intervention groups which include HMB supplementation will receive a 3 g/daily dose of free acid HMB in powder form. The primary outcome measure is the functional capacity. Secondary outcome measures are muscle strength and power, frailty and fall risk, body composition, biochemical analyses and cardiometabolic risk factor, disability and comorbidity, cognitive function and depression. Discussion The findings of the HEAL study will help professionals from public health systems to identify cost-effective and innovative actions to improve older people’s health and quality of life, and endorse exercise practice in older adults and people living in nursing homes. Trial registration NCT03827499 ; Date of registration: 01/02/2019.
Trends of insecticide resistance monitoring in mainland Tanzania, 2004–2020
Background Insecticide resistance is a serious threat to the continued effectiveness of insecticide-based malaria vector control measures, such as long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS). This paper describes trends and dynamics of insecticide resistance and its underlying mechanisms from annual resistance monitoring surveys on Anopheles gambiae sensu lato (s.l.) populations conducted across mainland Tanzania from 2004 to 2020. Methods The World Health Organization (WHO) standard protocols were used to assess susceptibility of the wild female An. gambiae s.l. mosquitoes to insecticides, with mosquitoes exposed to diagnostic concentrations of permethrin, deltamethrin, lambdacyhalothrin, bendiocarb, and pirimiphos-methyl. WHO test papers at 5× and 10× the diagnostic concentrations were used to assess the intensity of resistance to pyrethroids; synergist tests using piperonyl butoxide (PBO) were carried out in sites where mosquitoes were found to be resistant to pyrethroids. To estimate insecticide resistance trends from 2004 to 2020, percentage mortalities from each site and time point were aggregated and regression analysis of mortality versus the Julian dates of bioassays was performed. Results Percentage of sites with pyrethroid resistance increased from 0% in 2004 to more than 80% in the 2020, suggesting resistance has been spreading geographically. Results indicate a strong negative association (p = 0.0001) between pyrethroids susceptibility status and survey year. The regression model shows that by 2020 over 40% of An. gambiae mosquitoes survived exposure to pyrethroids at their respective diagnostic doses. A decreasing trend of An. gambiae susceptibility to bendiocarb was observed over time, but this was not statistically significant (p = 0.8413). Anopheles gambiae exhibited high level of susceptibility to the pirimiphos-methyl in sampled sites. Conclusions Anopheles gambiae Tanzania’s major malaria vector, is now resistant to pyrethroids across the country with resistance increasing in prevalence and intensity and has been spreading geographically. This calls for urgent action for efficient malaria vector control tools to sustain the gains obtained in malaria control. Strengthening insecticide resistance monitoring is important for its management through evidence generation for effective malaria vector control decision.
Benefits of resistance exercise in lean women with fibromyalgia: involvement of IGF-1 and leptin
Background Chronic pain and fatigue improves by exercise in fibromyalgia (FM) but underlying mechanisms are not known. Obesity is increased among FM patients and associates with higher levels of pain. Symptom improvement after aerobic exercise is affected by body mass index (BMI) in FM. Metabolic factors such as insulin-like growth factor 1 (IGF-1) and leptin may be involved. In this study, the aim was to evaluate the role of metabolic factors in lean, overweight and obese women during resistance exercise, in relation to symptom severity and muscle strength in women with FM. Methods Forty-three women participated in supervised progressive resistance exercise, twice weekly for 15-weeks. Serum free and total IGF-1, IGF-binding protein 3 (IGFBP3), adiponectin, leptin and resistin were determined at baseline and after 15-weeks. Level of current pain was rated on a visual analogue scale (0–100 mm). Level of fatigue was rated by multidimensional fatigue inventory (MFI-20) subscale general fatigue (MFIGF). Knee extension force, elbow flexion force and handgrip force were assessed by dynamometers. Results Free IGF-1 ( p  = 0.047), IGFBP3 ( p  = 0.025) and leptin ( p  = 0.008) were significantly decreased in lean women ( n  = 18), but not in the overweight ( n  = 17) and the obese ( n  = 8). Lean women with FM benefited from resistance exercise with improvements in current pain ( p = 0.039, n  = 18), general fatigue (MFIGF, p  = 0.022, n  = 18) and improved elbow-flexion force ( p  = 0.017, n  = 18). In overweight and obese women with FM there was no significant improvement in pain or fatigue but an improvement in elbow flexion ( p  = 0.049; p  = 0.012) after 15 weeks of resistance exercise. Conclusion The clearest clinical response to resistance exercise was found in lean patients with FM. In these individuals, individualized resistance exercise was followed by changes in IGF-1 and leptin, reduced pain, fatigue and improved muscular strength. In overweight and obese women FM markers of metabolic signaling and clinical symptoms were unchanged, but strength was improved in the upper limb. Resistance exercise combined with dietary interventions might benefit patients with FM and overweight. Trial registration The trial was registered 21 of October 2010 with ClinicalTrials.gov identification number: NCT01226784 .
A national surveillance study on five-year trends in AMR of E. coli from urine samples in Ethiopia
Introduction Antimicrobial resistance has become a global public health threat putting the health of millions in danger. Therefore, it is imperative to monitor the trends of resistant bacterial pathogens to better inform public health policies aiming at containing the spread of antimicrobial resistance. Objective This study aimed to assess the prevalence and trends of E. coli resistance from 2020 to 2024 among patients suspected of urinary tract infection in Ethiopia. Methods For this study, five years data (2020–2024) from 16 laboratory-based AMR surveillance system sentinel sites were captured by WHONET software and analyzed using R programming language. The data included 4696 E. coli isolates from urine specimens. Descriptive statistics were used to assess the prevalence of antimicrobial resistance and its distribution. Correspondence analysis was used to demonstrate the antimicrobial resistance profile by visualizing the E. coli resistance levels to antibiotics. Furthermore, the Cochran Armitage trend test was employed to test the null hypothesis of no linear trend in antimicrobial resistance against the alternative of a linear trend. Results The majority of patients ( n  = 2353, 58%) with isolates ( n  = 2711, 57.7%) were females and 1703 (42%) of patients with 1985 (42.3%) isolates were males. Among 16 sentinel sites, Tikur Anbessa Specialized Hospital and St. Paul’s Hospital contributed the highest numbers of E. coli isolates. Ampicillin, Cefazolin, Cefotaxime, Cefuroxime, and Trimethoprim/Sulfamethoxazole were among a high burden of E. coli resistance rates exceeding 70%, whereas Imipenem, Meropenem, Nitrofurantoin, Amikacin, and Gentamicin exhibited E. coli resistance rates below 30% across 2020 to 2024. Conclusion The study findings revealed that a high burden and increasing trends of antimicrobial resistance among E.coli isolates from urine samples. These results highlight a critical need to strengthen the national AMR surveillance systems and antimicrobial stewardship programs to help control the growing antimicrobial resistance in the country.
Tackling AMR from a multidisciplinary perspective: a primer from education and psychology
Antimicrobial resistance (AMR) is currently one of the most concerning threats in public health. The efforts to tackle the problem require a global One Health approach, using multidisciplinary approaches and a thorough understanding of the topic both by the general public and the experts. Currently, the lack of a shared mental model of the problem, the absence of a sense of responsibility amongst the different actors and a deficient education on the topic burden the efforts to slow down the emergency and spread of antimicrobial resistant infections. We here propose a multidisciplinary approach to tackle the AMR problem, taking into consideration not only the input from the biological and medical sciences but also the input from the social sciences. Specifically, we suggest strategies from education and psychology to increase awareness about antimicrobial resistance and to implement more effective interventions. Finally, we advocate for a comprehensive and a solidaristic model as the only solution for a problem which knows no borders. As such, political will and international cooperation will be key to achieve the desired change in antibiotic resistance trend.