258 research outputs found
The antibacterial effect of Berberis vulgaris mother tincture on Escherichia coli in-vitro
Abstract: Escherichia coli (E. coli) is the most abundant facultative anaerobe present in the intestine of humans and many other warm-blooded species. Most strains of E. coli are non-pathogenic, co-existing in harmony with their hosts; however, this species can also be regarded as a pathogen capable of causing a wide variety of illnesses. The gastrointestinal tract, meninges and kidneys are among the target organs affected by E. coli and diseases resulting from these infections include diarrhoea, sepsis, dysentery, meningitis and even pneumonia. E. coli’s resistance to major antibiotics is escalating worldwide, highlighting the need for the development of new treatment options. Berberis vulgaris L. (B. vulgaris L.) has long been used as a herbal remedy in several traditional medicine systems for the treatment of a variety of complaints. The aim of this study is to determine the antibacterial activity of B. vulgaris mother tincture (Ø) on E. coli in-vitro, using Kirby-Bauer Disc Diffusion and the Microdilution methods to confirm the minimum inhibitory concentrations (MICs). This quantitative in-vitro control study was conducted at the University of Johannesburg Doornfontein Campus at the Water and Health Research Centre (WHRC) with permission granted. The antimicrobial activity of B. vulgaris Ø was tested against 32 E. coli strains using the Kirby-Bauer Disc Diffusion method (to confirm growth inhibition) and the 96 well dilutions method (MIC). Results were statistically analysed by the researcher with the assistance of a statistician (STATKON). Parametric tests included the Kolmogorov-Smirnova test of normality and one sample T-test. Non-parametric testing comprised of the Friedman test and Wilcoxon Signed Ranks Test to summarize all the data acquired from the susceptibility test procedures. The results demonstrated that Berberis vulgaris Ø inhibited the growth of 90% of the 30 E. coli strains tested, which was confirmed by the Kirby-Bauer Disc Diffusion and Microdilution methods. The B. vulgaris Ø produced average antimicrobial effects during the Kirby-Bauer Disc Diffusion method, and the minimum dosing or decreased concentration of the active compound may have been an influence. When the E. coli bacterial strains were forced into contact with the compound during the microdilution method, growth inhibition was increased. Berberis vulgaris Ø has positively demonstrated its clinical efficacy, tolerability and in-vitro activity against the pathogenic E. coli strains in its entirety...M.Tech. (Homeopathy
Tuberculous endocarditis: valvular and right atrial involvement
Valvular endocarditis due to Mycobacterium tuberculosis is a rare clinical entity. It is usually manifest in the context of disseminated tuberculosis in immunocompromised Patients. This report describes a unique case of a 30-year-old immunocompetent man with an incidental finding of tuberculous valvular endocarditis. The Patient had a large mass on the anterior mitral leaflet and severe mitral regurgitation. He underwent mitral valve replacement and Mycobacterium tuberculosis was cultured from the valve vegetation and the right atrial masses. Post-operative recovery has been uneventful without relapse for 24 months
Erdheim Chester Disease treated successfully with cladribine
AbstractA 61-year-old previously healthy male with a history of progressive fatigue, lower extremity edema, and dyspnea for 4 months was hospitalized with pericardial and pleural effusions (Figure 1A, B). Lung, pleural, and pericardial biopsies were consistent with Erdheim-Chester disease. He was treated with systemic steroids, and ultimately tried on PEG-interferon. He deteriorated clinically and the disease progressed to include CNS manifestations. Ultimately he was treated with Cladribine, at a dose 0.014 mg/kg on day 1, followed by 0.09 mg/kg/day = 6.4 mg IV for 6 additional days. He received 2 further cycles of 0.14 mg kg/day for 7 days (1 month apart). After 3 cycles he improved significantly both clinically and radiographically. Six months post-treatment objective testing showed improvement in cardiac, neurologic, and pulmonary disease.Erdheim Chester Disease (ECD) is a rare non Langerhans cell histiocytosis. Only several hundred cases have been reported in the literature. Treatment for ECD is reserved for those with symptomatic disease, asymptomatic CNS involvement, or evidence of organ dysfunction. There is no standard treatment regimen: Current options include corticosteroids, Interferon alpha (IFN), systemic chemotherapy, and radiation therapy. The occurrence of the V600EBRAF mutation in about 50% of patients can make these patients amenable to targeted therapy with BRAF kinase inhibitors (e.g. Vemurafenib). More recently the presence of N/KRAS, and PIK3CA mutations have provided further rational for targeted therapies. The cytokine profile in patients with ECD suggests monocyte activation cladribine, a purine analogue toxic to monocytes, has also been studied as a treatment for ECD, especially in patients who test negative for the BRAF mutation
Renal Denervation for Resistant Hypertension in the contemporary era: A Systematic Review and Meta-analysis
Renal denervation (RDN) is a catheter-based ablation procedure designed to treat resistant hypertension (RH). The objective of our study is to determine the effect of RDN on blood pressure and renal function in patients with RH in comparison to medical therapy alone. We performed an extensive literature search for randomized control trials (RCT) reporting office and 24 hr. blood pressure changes and estimated glomerular filtration rate (eGFR) at baseline and 6 months. We calculated a weighted standardized mean difference of blood pressure and renal outcomes between RDN and control groups using random effects models. Our search yielded 608 studies of which we included 15 studies for the final analysis. A total of 857 patients were treated with RDN and 616 patients treated with medical therapy +/- sham procedure. Only 5 studies were double-blinded RCT with sham control. The adjusted standardized mean difference in the change in office based systolic and diastolic pressures (p = 0.18; p = 0.14); 24 hr. systolic and diastolic pressures (p = 0.20; p = 0.18); and eGFR (p = 0.20) from baseline to 6 months is statistically insignificant with significant heterogeneity. Subgroup analysis showed that among sham controlled trials, 24 hr. systolic blood pressure showed a modest but statistically significant benefit favoring renal denervation in patients with RH. Our meta-analysis of 15 RCTs showed no significant benefit of RDN on blood pressure control in patients with resistant hypertension. Subgroup analysis of sham control studies showed a modest benefit in 24 hr. systolic blood pressure at 6 months with RDN.Open access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]
Does individualized guided selection of antiplatelet therapy improve outcomes after percutaneous coronary intervention? A systematic review and meta-analysis
Background: The potential benefits of individualized guided selection of antiplatelet therapy over standard antiplatelet therapy in improving outcomes in patients undergoing percutaneous coronary intervention (PCI) have not been established. Therefore, we pooled evidence from available clinical trials to assess the effectiveness by comparing the two regimens in patients undergoing PCI.Methods: We queried two electronic databases, MEDLINE and Cochrane CENTRAL, from their inception to April 20, 2021 for published randomized controlled trials in any language that compared guided antiplatelet therapy, using either genetic testing or platelet function testing, versus standard antiplatelet therapy in patients undergoing PCI. The results from trials were presented as risk ratios (RRs) with 95% confidence intervals (CIs) and were pooled using a random-effects model.Results: Eleven eligible studies consisting of 18,465 patients undergoing PCI were included. Pooled results indicated that guided antiplatelet therapy, compared to standard therapy, was associated with a significant reduction in the incidence of MACE [RR 0·78, 95% CI (0·62-0·99), P = 0·04], MI [RR 0·73, 95% CI (0·56-0.96), P = 0·03], ST [RR 0·66, 95% CI (0·47-0.94), P = 0·02], stroke [RR 0·71, 95% CI (0·50-1.00), P = 0·05], and minor bleeding [RR 0·78, 95% CI (0·66-0.91), P = 0·003].Conclusions: Individualized guided selection of antiplatelet therapy significantly reduced the incidence of MACE, MI, ST, stroke, and minor bleeding in adult patients when compared with standard antiplatelet therapy. Our findings support the implementation of genetic and platelet function testing to select the most beneficial antiplatelet agent
High Prevalence of Abnormal Nocturnal Oximetry in Patients With Hypertrophic Cardiomyopathy
ObjectivesWe sought to determine the prevalence of nocturnal oxygen desaturation and obstructive sleep apnea (OSA) in a population of patients with hypertrophic cardiomyopathy (HCM).BackgroundThe coexistence of sleep apnea and HCM, 2 common cardiovascular conditions, has been largely unrecognized in the treatment of patients with HCM. The nocturnal hypoxia-induced hyperadrenergic state in OSA is expected to worsen hemodynamics and outcomes in HCM.MethodsOne hundred subjects with HCM between June 1, 2006, and July 14, 2008, were screened with nocturnal oximetry. Clinical variables were collected for statistical analysis. Oximetry was classified abnormal (suspicion of sleep-disordered breathing) in the presence of repetitive desaturation (≥5 events/h) followed by a rapid return to baseline oxygen saturation (SaO2) level with a decrease of ≥4% and threshold of 90%.ResultsSeventy-one (71%) patients with HCM had abnormal nocturnal oximetry (71 ± 9%, 95% confidence interval: 62% to 80%). Subjects with abnormal oximetry were older (age 59.5 ± 15.3 years) and more were hypertensive (n = 39 [55%]) than those with normal oximetry (age 45.8 ± 18.5 years, n = 9 [31%], p < 0.001, p = 0.03). Patients with HCM were more symptomatic in the presence of abnormal oximetry (New York Heart Association functional class II to III) (62% vs. 83%, p = 0.023). HCM patients had a higher prevalence of abnormal nocturnal oximetry (n = 71, 71%) compared with a control group of similar age and sex distribution (n = 49, 49%) (p = 0.001).ConclusionsAbnormal nocturnal oximetry is common in patients with HCM, suggesting that OSA is prevalent. OSA may impact hemodynamics and symptoms in HCM. Further studies are needed to determine the long-term benefit of OSA treatment on hemodynamics and disease progression in HCM
Left ventricular assist device implantation in high risk destination therapy patients: an alternative surgical approach
Left Ventricular Assist Device (LVAD) for Destination Therapy (DT) is an established therapy for end stage heart failure patients who are not transplant candidates. Many DT patients requiring LVADs have had prior open heart surgery, the majority of whom had prior sternotomy. In addition, DT patients tend to be older and more likely to have more significant co-morbidities than their Bridge-To-Transplant (BTT) counterparts. As such, placement of an implantable LVAD in DT patients can be technically hazardous and potentially prone to more perioperative complications. The purpose of this report is to describe an alternative implantation approach for the implantation of the Heartmate IIâ„¢ LVAD in high risk DT patients
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