Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 8.846
Filter
1.
J Antimicrob Chemother ; 79(5): 959-961, 2024 May 02.
Article in English | MEDLINE | ID: mdl-38693426

ABSTRACT

Community-acquired pneumonia continues to be one of the most common causes of morbidity and mortality due to infectious disease. The aetiologies, clinical presentations, diagnostic modalities and therapeutic options are changing and outpacing the creation of management guidelines. This educational article summarizes a roundtable activity sponsored by an unrestricted educational grant by Paratek that included US experts discussing these changes and identifying gaps in the current guidelines.


Subject(s)
Community-Acquired Infections , Pneumonia , Practice Guidelines as Topic , Community-Acquired Infections/diagnosis , Community-Acquired Infections/drug therapy , Humans , United States , Pneumonia/diagnosis , Pneumonia/therapy , Pneumonia/drug therapy , Anti-Bacterial Agents/therapeutic use
2.
New Microbiol ; 47(1): 33-37, 2024 May.
Article in English | MEDLINE | ID: mdl-38700881

ABSTRACT

Lower respiratory tract infections (LRTI) are still burdened by considerable morbidity and mortality. Rapid and appropriate treatment imply knowledge of the underlying causative pathogen; while it is tempting to offer broad spectrum antibiotics, Antimicrobial Stewardship Practices invite a judicious use of the latter, especially when bacteria are not the cause. However, the epidemiology shifts to multidrug resistant (MDR) pathogens that require optimization of molecules in order to provide optimal treatment. Novel methods requiring direct sample result testing such as the Biofire Pneumonia (PN) panel have recently been made available on the market. Syndromic testing may hence provide support in the diagnosis of LRTI. There is paucity of data concerning experiences in high MDR settings, and even less concerning the performance of these panels in pediatric settings with moderate MDR prevalence. Our study highlights the optimal sensitivity and importance of support from such methods in settings burdened by MDR presence and where fast and appropriate therapy is mandatory.


Subject(s)
Anti-Bacterial Agents , Humans , Italy/epidemiology , Child , Child, Preschool , Infant , Male , Female , Anti-Bacterial Agents/therapeutic use , Drug Resistance, Multiple, Bacterial , Pneumonia/microbiology , Pneumonia/drug therapy , Bacteria/isolation & purification , Bacteria/drug effects , Adolescent , Pneumonia, Bacterial/drug therapy , Pneumonia, Bacterial/microbiology , Pneumonia, Bacterial/epidemiology , Pneumonia, Bacterial/diagnosis
3.
BMJ Case Rep ; 17(5)2024 May 15.
Article in English | MEDLINE | ID: mdl-38749521

ABSTRACT

A woman in her 70s presented with anasarca and exertional dyspnoea. Investigation showed severe hypoalbuminaemia with no urinary or gastrointestinal protein losses. CT thorax reported lung consolidations, and transbronchial lung biopsy demonstrated organising pneumonia. Autoimmune myositis serology was positive for anti-Jo-1, anti-Ro-52, and anti-PM/Scl-100 antibodies. She was diagnosed with anti-synthetase syndrome with organising pneumonia. She was treated with oral prednisolone and oral mycophenolate mofetil with a good clinical response.


Subject(s)
Edema , Myositis , Humans , Female , Myositis/drug therapy , Myositis/diagnosis , Myositis/complications , Myositis/immunology , Aged , Edema/drug therapy , Edema/etiology , Prednisolone/therapeutic use , Prednisolone/administration & dosage , Mycophenolic Acid/therapeutic use , Tomography, X-Ray Computed , Pneumonia/drug therapy , Pneumonia/diagnosis , Dyspnea/etiology
4.
Sci Rep ; 14(1): 11846, 2024 05 24.
Article in English | MEDLINE | ID: mdl-38783029

ABSTRACT

Community-acquired pneumonia (CAP) poses a significant global health challenge, prompting exploration of innovative treatments. This systematic review and meta-analysis aimed to evaluate the efficacy and safety of vitamin C supplementation in adults undergoing treatment for CAP. A comprehensive search of the MEDLINE, Embase, CINAHL, the Cochrane Central Register of Controlled Trials, and Clinical Trials.gov databases from inception to 17 November 2023 identified six randomized-controlled-trials (RCTs) meeting inclusion criteria. The primary outcome analysis revealed a non-significant trend towards reduced overall mortality in the vitamin C group compared to controls (RR 0.51; 95% CI 0.24 to 1.09; p = 0.052; I2 = 0; p = 0.65). Sensitivity analysis, excluding corona-virus-disease 2019 (COVID-19) studies and considering the route of vitamin C administration, confirmed this trend. Secondary outcomes, including hospital length-of-stay (LOS), intensive-care-unit (ICU) LOS, and mechanical ventilation, exhibited mixed results. Notably, heterogeneity and publication bias were observed in hospital LOS analysis, necessitating cautious interpretation. Adverse effects were minimal, with isolated incidents of nausea, vomiting, hypotension, and tachycardia reported. This meta-analysis suggests potential benefits of vitamin C supplementation in CAP treatment. However, inconclusive findings and methodological limitations warrants cautious interpretation, emphasising the urgency for high-quality trials to elucidate the true impact of vitamin C supplementation in CAP management.


Subject(s)
Ascorbic Acid , Community-Acquired Infections , Dietary Supplements , Pneumonia , Humans , Ascorbic Acid/therapeutic use , Ascorbic Acid/administration & dosage , Community-Acquired Infections/drug therapy , Pneumonia/drug therapy , Treatment Outcome , Randomized Controlled Trials as Topic , Length of Stay , COVID-19 , Respiration, Artificial
5.
Ann Intern Med ; 177(5): JC51, 2024 May.
Article in English | MEDLINE | ID: mdl-38710079

ABSTRACT

SOURCE CITATION: Giamarellos-Bourboulis EJ, Siampanos A, Bolanou A, et al. Clarithromycin for early anti-inflammatory responses in community-acquired pneumonia in Greece (ACCESS): a randomised, double-blind, placebo-controlled trial. Lancet Respir Med. 2024;12:294-304. 38184008.


Subject(s)
Anti-Bacterial Agents , Clarithromycin , Community-Acquired Infections , Humans , Clarithromycin/administration & dosage , Clarithromycin/therapeutic use , Community-Acquired Infections/drug therapy , Anti-Bacterial Agents/administration & dosage , Anti-Bacterial Agents/therapeutic use , Double-Blind Method , Administration, Oral , Pneumonia/drug therapy , Male , Female , Pneumonia, Bacterial/drug therapy , Middle Aged , Drug Therapy, Combination
6.
Ann Intern Med ; 177(5): JC50, 2024 May.
Article in English | MEDLINE | ID: mdl-38710088

ABSTRACT

SOURCE CITATION: Chaudhuri D, Nei AM, Rochwerg B, et al. 2024 focused update: guidelines on use of corticosteroids in sepsis, acute respiratory distress syndrome, and community-acquired pneumonia. Crit Care Med. 2024;52:e219-e233. 38240492.


Subject(s)
Adrenal Cortex Hormones , Community-Acquired Infections , Respiratory Distress Syndrome , Sepsis , Humans , Respiratory Distress Syndrome/drug therapy , Sepsis/drug therapy , Adrenal Cortex Hormones/therapeutic use , Community-Acquired Infections/drug therapy , Pneumonia/drug therapy , Adult
7.
Front Immunol ; 15: 1375943, 2024.
Article in English | MEDLINE | ID: mdl-38765005

ABSTRACT

Introduction: Brain death (BD) is known to compromise graft quality by causing hemodynamic, metabolic, and hormonal changes. The abrupt reduction of female sex hormones after BD was associated with increased lung inflammation. The use of both corticoids and estradiol independently has presented positive results in modulating BD-induced inflammatory response. However, studies have shown that for females the presence of both estrogen and corticoids is necessary to ensure adequate immune response. In that sense, this study aims to investigate how the association of methylprednisolone (MP) and estradiol (E2) could modulate the lung inflammation triggered by BD in female rats. Methods: Female Wistar rats (8 weeks) were divided into four groups: sham (animals submitted to the surgical process, without induction of BD), BD (animals submitted to BD), MP/E2 (animals submitted to BD that received MP and E2 treatment 3h after BD induction) and MP (animals submitted to BD that received MP treatment 3h after BD induction). Results: Hemodynamics, systemic and local quantification of IL-6, IL-1ß, VEGF, and TNF-α, leukocyte infiltration to the lung parenchyma and airways, and adhesion molecule expression were analyzed. After treatment, MP/E2 association was able to reinstate mean arterial pressure to levels close to Sham animals (p<0.05). BD increased leukocyte infiltration to the airways and MP/E2 was able to reduce the number of cells (p=0.0139). Also, the associated treatment modulated the vasculature by reducing the expression of VEGF (p=0.0616) and maintaining eNOS levels (p=0.004) in lung tissue. Discussion: Data presented in this study show that the association between corticoids and estradiol could represent a better treatment strategy for lung inflammation in the female BD donor by presenting a positive effect in the hemodynamic management of the donor, as well as by reducing infiltrated leukocyte to the airways and release of inflammatory markers in the short and long term.


Subject(s)
Brain Death , Estradiol , Methylprednisolone , Pneumonia , Rats, Wistar , Animals , Female , Estradiol/pharmacology , Methylprednisolone/pharmacology , Rats , Pneumonia/drug therapy , Pneumonia/metabolism , Cytokines/metabolism , Lung/drug effects , Lung/pathology , Lung/metabolism , Lung/immunology , Disease Models, Animal , Anti-Inflammatory Agents/pharmacology , Anti-Inflammatory Agents/therapeutic use
8.
BMC Pulm Med ; 24(1): 224, 2024 May 08.
Article in English | MEDLINE | ID: mdl-38720270

ABSTRACT

BACKGROUND: Simvastatin (Sim), a hydroxy-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor, has been widely used in prevention and treatment of cardiovascular diseases. Studies have suggested that Sim exerts anti-fibrotic effects by interfering fibroblast proliferation and collagen synthesis. This study was to determine whether Sim could alleviate silica-induced pulmonary fibrosis and explore the underlying mechanisms. METHODS: The rat model of silicosis was established by the tracheal perfusion method and treated with Sim (5 or 10 mg/kg), AICAR (an AMPK agonist), and apocynin (a NOX inhibitor) for 28 days. Lung tissues were collected for further analyses including pathological histology, inflammatory response, oxidative stress, epithelial mesenchymal transformation (EMT), and the AMPK-NOX pathway. RESULTS: Sim significantly reduced silica-induced pulmonary inflammation and fibrosis at 28 days after administration. Sim could reduce the levels of interleukin (IL)-1ß, IL-6, tumor necrosis factor-α and transforming growth factor-ß1 in lung tissues. The expressions of hydroxyproline, α-SMA and vimentin were down-regulated, while E-cad was increased in Sim-treated rats. In addition, NOX4, p22pox, p40phox, p-p47phox/p47phox expressions and ROS levels were all increased, whereas p-AMPK/AMPK was decreased in silica-induced rats. Sim or AICAR treatment could notably reverse the decrease of AMPK activity and increase of NOX activity induced by silica. Apocynin treatment exhibited similar protective effects to Sim, including down-regulating of oxidative stress and inhibition of the EMT process and inflammatory reactions. CONCLUSIONS: Sim attenuates silica-induced pulmonary inflammation and fibrosis by downregulating EMT and oxidative stress through the AMPK-NOX pathway.


Subject(s)
AMP-Activated Protein Kinases , Pulmonary Fibrosis , Silicon Dioxide , Simvastatin , Animals , Male , Rats , Acetophenones/pharmacology , Aminoimidazole Carboxamide/analogs & derivatives , Aminoimidazole Carboxamide/pharmacology , AMP-Activated Protein Kinases/metabolism , Disease Models, Animal , Epithelial-Mesenchymal Transition/drug effects , Hydroxymethylglutaryl-CoA Reductase Inhibitors/pharmacology , Lung/pathology , Lung/drug effects , Lung/metabolism , NADPH Oxidase 4/metabolism , NADPH Oxidases/metabolism , Oxidative Stress/drug effects , Pneumonia/chemically induced , Pneumonia/prevention & control , Pneumonia/drug therapy , Pneumonia/metabolism , Pneumonia/pathology , Pulmonary Fibrosis/chemically induced , Pulmonary Fibrosis/drug therapy , Ribonucleotides/pharmacology , Signal Transduction/drug effects , Silicosis/drug therapy , Silicosis/pathology , Silicosis/metabolism , Simvastatin/pharmacology , Transforming Growth Factor beta1/metabolism
9.
Int J Biol Macromol ; 270(Pt 1): 132028, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38704066

ABSTRACT

Clinical therapy for widespread infections caused by Streptococcus pneumoniae (S. pneumoniae), such as community-acquired pneumonia, is highly challenging. As an important bacterial toxin, hydrogen peroxide (H2O2) secreted by S. pneumoniae can suppress the host's immune system and cause more severe disease. To address this problem, a hyaluronic acid (HA)-coated inorganic catalase-driven Janus nanomotor was developed, which can cleverly utilize and decompose H2O2 to reduce the burden of bacterial infection, and have excellent drug loading capacity. HA coating prevents rapid leakage of loaded antibiotics and improves the biocompatibility of the nanomaterials. The Janus nanomotor converted H2O2 into oxygen (O2), gave itself the capacity to move actively, and encouraged widespread dispersion in the lesion site. Encouragingly, animal experiments demonstrated that the capability of the nanomotors to degrade H2O2 contributes to diminishing the proliferation of S. pneumoniae and lung tissue damage. This self-propelled drug delivery platform provides a new therapeutic strategy for infections with toxin-secreting bacteria.


Subject(s)
Catalase , Hyaluronic Acid , Hydrogen Peroxide , Streptococcus pneumoniae , Hyaluronic Acid/chemistry , Catalase/metabolism , Catalase/chemistry , Streptococcus pneumoniae/drug effects , Animals , Hydrogen Peroxide/chemistry , Hydrogen Peroxide/metabolism , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/chemistry , Mice , Nanostructures/chemistry , Humans , Pneumonia/drug therapy
10.
Int J Mol Sci ; 25(10)2024 May 14.
Article in English | MEDLINE | ID: mdl-38791399

ABSTRACT

Oxylipins, the metabolites of polyunsaturated fatty acids, are vital in regulating cell proliferation and inflammation. Among these oxylipins, specialized pro-resolving mediators notably contribute to inflammation resolution. Previously, we showed that the specialized pro-resolving mediators isomer 11,17dihydroxy docosapentaenoic acid (11,17diHDoPE) can be synthesized in bacterial cells and exhibits anti-inflammatory effects in mammalian cells. This study investigates the in vivo impact of 11,17diHDoPE in mice exposed to particulate matter 10 (PM10). Our results indicate that 11,17diHDoPE significantly mitigates PM10-induced lung inflammation in mice, as evidenced by reduced pro-inflammatory cytokines and pulmonary inflammation-related gene expression. Metabolomic analysis reveals that 11,17diHDoPE modulates inflammation-related metabolites such as threonine, 2-keto gluconic acid, butanoic acid, and methyl oleate in lung tissues. In addition, 11,17diHDoPE upregulates the LA-derived oxylipin pathway and downregulates arachidonic acid- and docosahexaenoic acid-derived oxylipin pathways in serum. Correlation analyses between gene expression and metabolite changes suggest that 11,17diHDoPE alleviates inflammation by interfering with macrophage differentiation. These findings underscore the in vivo role of 11,17diHDoPE in reducing pulmonary inflammation, highlighting its potential as a therapeutic agent for respiratory diseases.


Subject(s)
Anti-Inflammatory Agents , Fatty Acids, Unsaturated , Metabolome , Particulate Matter , Pneumonia , Animals , Mice , Metabolome/drug effects , Pneumonia/metabolism , Pneumonia/chemically induced , Pneumonia/drug therapy , Particulate Matter/toxicity , Anti-Inflammatory Agents/pharmacology , Fatty Acids, Unsaturated/metabolism , Male , Lung/metabolism , Lung/pathology , Lung/drug effects , Mice, Inbred C57BL , Oxylipins/metabolism , Metabolomics/methods , Cytokines/metabolism , Gene Expression Regulation/drug effects
11.
J Ethnopharmacol ; 331: 118294, 2024 Sep 15.
Article in English | MEDLINE | ID: mdl-38729541

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: Sepsis poses one of the biggest public health problems, necessitating the search for new therapeutic alternatives. For centuries, propolis has been widely used in folk medicine to treat various inflammatory and infectious diseases. Given its extensive use, it has excellent potential as an adjuvant treatment for patients with sepsis. OBJECTIVE: This study evaluated prophylactic treatment with standardized propolis extract (EPP-AF®) and followed the prognosis of sepsis induced by ligation and cecal ligation and puncture (CLP). METHODS: Initially, for survival assessment, Swiss mice were separated into five groups: Sham (false operated), control (PBS), ATB (received antibiotic, 8 mg/kg), P10 (received EPP-AF®, 10 mg/kg), and P100 (received EPP-AF®, 100 mg/kg). The animals received PBS, antibiotic, or EPP-AF® by the subcutaneous route 6 h before the CLP procedure. Animal survival was assessed every 12 h for five days when all of them were euthanized. RESULTS: We show that the treatment with EPP-AF® significantly increased the life expectancy of animals with sepsis compared to the control group. Interestingly, prophylactic treatment with EPP-AF® showed no effect on the number of colony-forming units in the peritoneum, blood, or lung. However, there was a decrease in cellular influx in the peritoneum. This alteration was unrelated to the number of bone marrow cells or the differential counting of peripheral blood cells. The coagulogram remained unchanged, including the number of platelets and prothrombin time-activated partial thromboplastin time. However, the inflammatory infiltrate and bleeding in the lung tissue were lower in the animals that received EPP-AF®. CONCLUSION: Thus, it was possible to conclude that prophylactic treatment with EPP-AF® preserved the lung parenchyma, resulting in an increased lifespan of mice with sepsis. It can be a helpful adjuvant in prophylactic treatment with antibiotics in presurgical conditions.


Subject(s)
Propolis , Sepsis , Animals , Propolis/pharmacology , Sepsis/drug therapy , Sepsis/mortality , Mice , Male , Bees , Pneumonia/prevention & control , Pneumonia/drug therapy , Disease Models, Animal , Lung/drug effects , Lung/pathology
13.
Emerg Med Clin North Am ; 42(2): 231-247, 2024 May.
Article in English | MEDLINE | ID: mdl-38641389

ABSTRACT

Pneumonia is split into 3 diagnostic categories: community-acquired pneumonia (CAP), health care-associated pneumonia, and ventilator-associated pneumonia. This classification scheme is driven not only by the location of infection onset but also by the predominant associated causal microorganisms. Pneumonia is diagnosed in over 1.5 million US emergency department visits annually (1.2% of all visits), and most pneumonia diagnosed by emergency physicians is CAP.


Subject(s)
Community-Acquired Infections , Pneumonia, Ventilator-Associated , Pneumonia , Humans , Pneumonia/therapy , Pneumonia/drug therapy , Emergency Service, Hospital , Community-Acquired Infections/therapy , Community-Acquired Infections/drug therapy , Anti-Bacterial Agents/therapeutic use
14.
Acta Med Indones ; 56(1): 55-62, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38561875

ABSTRACT

BACKGROUND: The incidence of CAP due to Drug-Resistant Pathogen (DRP) requires broad-spectrum antibiotic therapy, Drugs Resistance in Pneumonia (DRIP) score can predict these cases. The use of the DRIP score can prevent antibiotic failure and long hospitalization, but validation is needed so that the DRIP score can be used according to the local community at Cipto Mangunkusumo National Central Public Hospital. METHODS: This research is a retrospective cohort study in CAP patients who were hospitalized during the period January 2019 to June 2020. Data were taken from medical records. Failure of empiric antibiotics occurs when one of these criteria is found: patient mortality, ICU transfer, and escalation of antibiotics as well as length of stay. RESULTS: 480 patients met the criteria. There were 331 patients (69%) with a DRIP score of <4 and 149 patients (31%) with a DRIP score of≥4. A total of 283 patients (59%) of antibiotic failures were detailed in 174 patients with a DRIP score <4 and 109 patients DRIP score ≥4. DRIP calibration using the Hosmer-Lemeshow test obtained p-value= 0.667 (p>0.05). AUC observations on the ROC curve obtained 0.651 (95% CI; 0.601-0.700). CONCLUSION: The DRIP score has low accuracy performance and calibration value in predicting empirical antibiotic failure and poor discriminatory value.


Subject(s)
Community-Acquired Infections , Pneumonia , Humans , Anti-Bacterial Agents/therapeutic use , Retrospective Studies , Pneumonia/drug therapy , Pneumonia/epidemiology , Hospitalization , Community-Acquired Infections/drug therapy , Community-Acquired Infections/epidemiology , Hospitals
15.
BMC Complement Med Ther ; 24(1): 147, 2024 Apr 05.
Article in English | MEDLINE | ID: mdl-38580929

ABSTRACT

BACKGROUND: Pneumonia, the acute inflammation of lung tissue, is multi-factorial in etiology. Hence, continuous studies are conducted to determine the mechanisms involved in the progression of the disease and subsequently suggest effective treatment. The present study attempted to evaluate the effects of Epigallocatechin-3-Gallate (EGCG), an herbal antioxidant, on inflammation, oxidative stress, apoptosis, and autophagy in a rat pneumonia model. METHODS: Forty male Wistar rats, 5 months old and 250-290 g were divided into four groups including control, EGCG, experimental pneumonia (i/p LPS injection, 1 mg/kg), and experimental pneumonia treated with EGCG (i/p, 15 mg/kg, 1 h before and 3 h after LPS instillation). Total cell number in the bronchoalveolar lavage fluid, inflammation (TNF-a, Il-6, IL-1ß, and NO), oxidative stress (Nrf2, HO-1, SOD, CAT, GSH, GPX, MDA, and TAC), apoptosis (BCL-2, BAX, CASP-3 and CASP-9), and autophagy (mTOR, LC3, BECN1) were evaluated. RESULTS: The findings demonstrated that EGCG suppresses the LPS-induced activation of inflammatory pathways by a significant reduction of inflammatory markers (p-value < 0.001). In addition, the upregulation of BCL-2 and downregulation of BAX and caspases revealed that EGCG suppressed LPS-induced apoptosis. Furthermore, ECGC suppressed oxidative injury while promoting autophagy in rats with pneumonia (p-value < 0.05). CONCLUSION: The current study revealed that EGCG could suppress inflammation, oxidative stress, apoptosis, and promote autophagy in experimental pneumonia models of rats suggesting promising therapeutical properties of this compound to be used in pneumonia management.


Subject(s)
Catechin/analogs & derivatives , Lipopolysaccharides , Pneumonia , Rats , Male , Animals , Lipopolysaccharides/toxicity , bcl-2-Associated X Protein/metabolism , Rats, Wistar , Oxidative Stress , Inflammation/drug therapy , Inflammation/metabolism , Pneumonia/drug therapy , Apoptosis , Autophagy
16.
Eur J Med Res ; 29(1): 234, 2024 Apr 15.
Article in English | MEDLINE | ID: mdl-38622728

ABSTRACT

BACKGROUND: Influenza is an acute respiratory infection caused by influenza virus. Maxing Shigan Decoction (MXSGD) is a commonly used traditional Chinese medicine prescription for the prevention and treatment of influenza. However, its mechanism remains unclear. METHOD: The mice model of influenza A virus pneumonia was established by nasal inoculation. After 3 days of intervention, the lung index was calculated, and the pathological changes of lung tissue were detected by HE staining. Firstly, transcriptomics technology was used to analyze the differential genes and important pathways in mouse lung tissue regulated by MXSGD. Then, real-time fluorescent quantitative PCR (RT-PCR) was used to verify the changes in mRNA expression in lung tissues. Finally, intestinal microbiome and intestinal metabolomics were performed to explore the effect of MXSGD on gut microbiota. RESULTS: The lung inflammatory cell infiltration in the MXSGD group was significantly reduced (p < 0.05). The results of bioinformatics analysis for transcriptomics results show that these genes are mainly involved in inflammatory factors and inflammation-related signal pathways mediated inflammation biological modules, etc. Intestinal microbiome showed that the intestinal flora Actinobacteriota level and Desulfobacterota level increased in MXSGD group, while Planctomycetota in MXSGD group decreased. Metabolites were mainly involved in primary bile acid biosynthesis, thiamine metabolism, etc. This suggests that MXSGD has a microbial-gut-lung axis regulation effect on mice with influenza A virus pneumonia. CONCLUSION: MXSGD may play an anti-inflammatory and immunoregulatory role by regulating intestinal microbiome and intestinal metabolic small molecules, and ultimately play a role in the treatment of influenza A virus pneumonia.


Subject(s)
Alphainfluenzavirus , Drugs, Chinese Herbal , Influenza A virus , Influenza, Human , Orthomyxoviridae , Pneumonia , Mice , Animals , Humans , Drugs, Chinese Herbal/pharmacology , Drugs, Chinese Herbal/therapeutic use , Influenza, Human/drug therapy , Influenza, Human/genetics , Pneumonia/drug therapy , Pneumonia/genetics , Inflammation , Systems Biology , Gene Expression Profiling
17.
Sci Rep ; 14(1): 9056, 2024 04 20.
Article in English | MEDLINE | ID: mdl-38643191

ABSTRACT

The impact of evolving treatment regimens, airway clearance strategies, and antibiotic combinations on the incidence and prevalence of respiratory infection in cystic fibrosis (CF) in children and adolescents remains unclear. The incidence, prevalence, and prescription trends from 2002 to 2019 with 18,339 airway samples were analysed. Staphylococcus aureus [- 3.86% (95% CI - 5.28-2.43)] showed the largest annual decline in incidence, followed by Haemophilus influenzae [- 3.46% (95% CI - 4.95-1.96)] and Pseudomonas aeruginosa [- 2.80%95% CI (- 4.26-1.34)]. Non-tuberculous mycobacteria and Burkholderia cepacia showed a non-significant increase in incidence. A similar pattern of change in prevalence was observed. No change in trend was observed in infants < 2 years of age. The mean age of the first isolation of S. aureus (p < 0.001), P. aeruginosa (p < 0.001), H. influenza (p < 0.001), Serratia marcescens (p = 0.006) and Aspergillus fumigatus (p = 0.02) have increased. Nebulised amikacin (+ 3.09 ± 2.24 prescription/year, p = 0.003) and colistin (+ 1.95 ± 0.3 prescriptions/year, p = 0.032) were increasingly prescribed, while tobramycin (- 8.46 ± 4.7 prescriptions/year, p < 0.001) showed a decrease in prescription. Dornase alfa and hypertonic saline nebulisation prescription increased by 16.74 ± 4.1 prescriptions/year and 24 ± 4.6 prescriptions/year (p < 0.001). There is a shift in CF among respiratory pathogens and prescriptions which reflects the evolution of cystic fibrosis treatment strategies over time.


Subject(s)
Cystic Fibrosis , Pneumonia , Pseudomonas Infections , Child , Infant , Humans , Adolescent , Cystic Fibrosis/complications , Cystic Fibrosis/epidemiology , Cystic Fibrosis/microbiology , Staphylococcus aureus , Respiratory System/microbiology , Anti-Bacterial Agents/therapeutic use , Pseudomonas Infections/drug therapy , Pneumonia/drug therapy , Pseudomonas aeruginosa
18.
Eur J Med Res ; 29(1): 222, 2024 Apr 06.
Article in English | MEDLINE | ID: mdl-38581075

ABSTRACT

BACKGROUND: Pneumonia is a major public health problem with an impact on morbidity and mortality. Its management still represents a challenge. The aim was to determine whether a new diagnostic algorithm combining lung ultrasound (LUS) and procalcitonin (PCT) improved pneumonia management regarding antibiotic use, radiation exposure, and associated costs, in critically ill pediatric patients with suspected bacterial pneumonia (BP). METHODS: Randomized, blinded, comparative effectiveness clinical trial. Children < 18y with suspected BP admitted to the PICU from September 2017 to December 2019, were included. PCT was determined at admission. Patients were randomized into the experimental group (EG) and control group (CG) if LUS or chest X-ray (CXR) were done as the first image test, respectively. Patients were classified: 1.LUS/CXR not suggestive of BP and PCT < 1 ng/mL, no antibiotics were recommended; 2.LUS/CXR suggestive of BP, regardless of the PCT value, antibiotics were recommended; 3.LUS/CXR not suggestive of BP and PCT > 1 ng/mL, antibiotics were recommended. RESULTS: 194 children were enrolled, 113 (58.2%) females, median age of 134 (IQR 39-554) days. 96 randomized into EG and 98 into CG. 1. In 75/194 patients the image test was not suggestive of BP with PCT < 1 ng/ml; 29/52 in the EG and 11/23 in the CG did not receive antibiotics. 2. In 101 patients, the image was suggestive of BP; 34/34 in the EG and 57/67 in the CG received antibiotics. Statistically significant differences between groups were observed when PCT resulted < 1 ng/ml (p = 0.01). 3. In 18 patients the image test was not suggestive of BP but PCT resulted > 1 ng/ml, all of them received antibiotics. A total of 0.035 mSv radiation/patient was eluded. A reduction of 77% CXR/patient was observed. LUS did not significantly increase costs. CONCLUSIONS: Combination of LUS and PCT showed no risk of mistreating BP, avoided radiation and did not increase costs. The algorithm could be a reliable tool for improving pneumonia management. CLINICAL TRIAL REGISTRATION: NCT04217980.


Subject(s)
Pneumonia, Bacterial , Pneumonia , Radiation Exposure , Female , Humans , Child , Male , Procalcitonin , Lung/diagnostic imaging , Pneumonia/diagnostic imaging , Pneumonia/drug therapy , Pneumonia, Bacterial/diagnostic imaging , Pneumonia, Bacterial/drug therapy , Ultrasonography/methods , Anti-Bacterial Agents/therapeutic use
19.
Sci Rep ; 14(1): 8271, 2024 04 09.
Article in English | MEDLINE | ID: mdl-38594555

ABSTRACT

Community-acquired Pneumonia (CAP) guidelines generally recommend to admit patients with moderate-to-severe CAP and start treatment with intravenous antibiotics. This study aims to explore the clinical outcomes of oral antibiotics in patients with moderate-to-severe CAP. We performed a nested cohort study of an observational study including all adult patients presenting to the emergency department of the Haga Teaching Hospital, the Netherlands, between April 2019 and May 2020, who had a blood culture drawn. We conducted propensity score matching with logistic and linear regression analysis to compare patients with moderate-to-severe CAP (Pneumonia Severity Index class III-V) treated with oral antibiotics to patients treated with intravenous antibiotics. Outcomes were 30-day mortality, intensive care unit admission, readmission, length of stay (LOS) and length of antibiotic treatment. Of the original 314 patients, 71 orally treated patients were matched with 102 intravenously treated patients. The mean age was 73 years and 58% were male. We found no significant differences in outcomes between the oral and intravenous group, except for an increased LOS of + 2.6 days (95% confidence interval 1.2-4.0, p value < 0.001) in those treated intravenously. We conclude that oral antibiotics might be a safe and effective treatment for moderate-to-severe CAP for selected patients based on the clinical judgement of the attending physician.


Subject(s)
Community-Acquired Infections , Pneumonia , Adult , Humans , Male , Aged , Female , Anti-Bacterial Agents/therapeutic use , Cohort Studies , Propensity Score , Pneumonia/drug therapy , Community-Acquired Infections/drug therapy , Length of Stay , Retrospective Studies
20.
Chem Biol Drug Des ; 103(4): e14487, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38670559

ABSTRACT

This study investigates the molecular mechanism of Ma Huang-Ku Xing Ren, a traditional Chinese medicine formula, in treating pediatric pneumonia. The focus is on the regulation of caspase-3 activation and reduction of alveolar macrophage necrosis through network pharmacology and bioinformatics analyses of Ephedra and bitter almond components. Active compounds and targets from ephedrine and bitter almond were obtained using TCMSP, TCMID, and GeneCards databases, identifying pediatric pneumonia-related genes. A protein-protein interaction (PPI) network was constructed, and core targets were screened. GO and KEGG pathway enrichment analyses identified relevant genes and pathways. An acute pneumonia mouse model was created using the lipopolysaccharide (LPS) inhalation method, with caspase-3 overexpression induced by a lentivirus. The mice were treated with Ephedra and bitter almond through gastric lavage. Lung tissue damage, inflammatory markers (IL-18 and IL-1ß), and cell death-related gene activation were assessed through H&E staining, ELISA, western blot, flow cytometry, and immunofluorescence. The study identified 128 active compounds and 121 gene targets from Ephedra and bitter almond. The PPI network revealed 13 core proteins, and pathway analysis indicated involvement in inflammation, apoptosis, and cell necrosis, particularly the caspase-3 pathway. In vivo results showed that Ephedra and bitter almond treatment significantly mitigated LPS-induced lung injury in mice, reducing lung injury scores and inflammatory marker levels. It also decreased caspase-3 activity and cell death in alveolar macrophages. In conclusion, the active ingredients of Ma Huang-Ku Xing Ren, particularly targeting caspase-3, may effectively treat pediatric pneumonia by reducing apoptosis in alveolar macrophages, as demonstrated by both network pharmacology, bioinformatics analyses, and experimental data.


Subject(s)
Caspase 3 , Computational Biology , Drugs, Chinese Herbal , Ephedra , Macrophages, Alveolar , Pneumonia , Pyroptosis , Animals , Macrophages, Alveolar/metabolism , Macrophages, Alveolar/drug effects , Caspase 3/metabolism , Mice , Pneumonia/drug therapy , Pneumonia/metabolism , Ephedra/chemistry , Ephedra/metabolism , Pyroptosis/drug effects , Drugs, Chinese Herbal/pharmacology , Drugs, Chinese Herbal/chemistry , Drugs, Chinese Herbal/therapeutic use , Network Pharmacology , Protein Interaction Maps/drug effects , Humans , Prunus armeniaca/chemistry , Prunus armeniaca/metabolism , Lipopolysaccharides , Male , Disease Models, Animal
SELECTION OF CITATIONS
SEARCH DETAIL
...