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Asaftei M, Lucidi M, Anton SR, Trompeta AF, Hristu R, Tranca DE, Fiorentis E, Cirtoaje C, Lazar V, Stanciu GA, Cincotti G, Ayala P, Charitidis CA, Holban A, Visca P, Stanciu SG. Antibacterial Interactions of Ethanol-Dispersed Multiwalled Carbon Nanotubes with Staphylococcus aureus and Pseudomonas aeruginosa. ACS OMEGA 2024; 9:33751-33764. [PMID: 39130555 PMCID: PMC11307305 DOI: 10.1021/acsomega.4c03044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 08/13/2024]
Abstract
Infectious diseases are acknowledged as one of the leading causes of death worldwide. Statistics show that the annual death toll caused by bacterial infections has reached 14 million, most of which are caused by drug-resistant strains. Bacterial antibiotic resistance is currently regarded as a compelling problem with dire consequences, which motivates the urgent identification of alternative ways of fighting bacteria. Various types of nanomaterials have been reported to date as efficient antibacterial solutions. Among these, carbon-based nanomaterials, such as carbon nanodots, carbon graphene oxide, and carbon nanotubes (CNTs), have been shown to be effective in killing a wide panel of pathogenic bacteria. With this study, we aim to provide additional insights into this topic of research by investigating the antibacterial activity of a specific type of multiwalled CNTs, with diameters from 50 to 150 nm, against two representative opportunistic pathogens, i.e., the Gram-positive bacterium Staphylococcus aureus and the Gram-negative bacterium Pseudomonas aeruginosa, both included among the top antibiotic-resistant pathogens. We also test the synergistic effect of CNTs with different antibiotics commonly used in the treatment of infections caused by S. aureus and/or P. aeruginosa. Additionally, a novel approach for quantitatively analyzing bacterial aggregation in brightfield microscopy images was implemented. This method was utilized to assess the effectiveness of CNTs, either alone or in combination with antibiotics, in dispersing bacterial aggregates. Finally, atomic force microscopy coupled with a newly devised image analysis pipeline was used to examine any potential morphological changes in bacterial cells following exposure to CNTs and antibiotics.
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Affiliation(s)
- Mihaela Asaftei
- Center
for Microscopy-Microanalysis and Information Processing, National University of Science and Technology Politehnica
Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
- Department
of Microbiology and Immunology, Faculty of Biology, Research Institute
of the University of Bucharest, University
of Bucharest, 060101 Bucharest, Romania
| | - Massimiliano Lucidi
- Department
of Science, Roma Tre University, Viale G. Marconi 446, 00146 Rome, Italy
- NBFC,
National Biodiversity Future Center, Piazza Marina 61, 90133 Palermo, Italy
| | - Stefan Razvan Anton
- Center
for Microscopy-Microanalysis and Information Processing, National University of Science and Technology Politehnica
Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Aikaterini-Flora Trompeta
- Research
Lab of Advanced, Composite, Nano-Materials and Nanotechnology (R-NanoLab),
School of Chemical Engineering, National
Technical University of Athens, 9 Heroon Polytechniou, 15773 Athens, Greece
| | - Radu Hristu
- Center
for Microscopy-Microanalysis and Information Processing, National University of Science and Technology Politehnica
Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Denis E. Tranca
- Center
for Microscopy-Microanalysis and Information Processing, National University of Science and Technology Politehnica
Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Efstathios Fiorentis
- Center
for Microscopy-Microanalysis and Information Processing, National University of Science and Technology Politehnica
Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Cristina Cirtoaje
- Center
for Microscopy-Microanalysis and Information Processing, National University of Science and Technology Politehnica
Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Veronica Lazar
- Department
of Microbiology and Immunology, Faculty of Biology, Research Institute
of the University of Bucharest, University
of Bucharest, 060101 Bucharest, Romania
| | - George A. Stanciu
- Center
for Microscopy-Microanalysis and Information Processing, National University of Science and Technology Politehnica
Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Gabriella Cincotti
- Department
of Engineering, Roma Tre University, Viale G. Marconi 446, 00146 Rome, Italy
| | - Paola Ayala
- Faculty
of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Costas A. Charitidis
- Research
Lab of Advanced, Composite, Nano-Materials and Nanotechnology (R-NanoLab),
School of Chemical Engineering, National
Technical University of Athens, 9 Heroon Polytechniou, 15773 Athens, Greece
| | - Alina Holban
- Department
of Microbiology and Immunology, Faculty of Biology, Research Institute
of the University of Bucharest, University
of Bucharest, 060101 Bucharest, Romania
| | - Paolo Visca
- Department
of Science, Roma Tre University, Viale G. Marconi 446, 00146 Rome, Italy
| | - Stefan G. Stanciu
- Center
for Microscopy-Microanalysis and Information Processing, National University of Science and Technology Politehnica
Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
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Glaser EP, Stewart AN, Jagielo-Miller JE, Bailey CS, Prendergast MA, Gensel JC. Effects of Acute Ethanol Intoxication on Spinal Cord Injury Outcomes in Female Mice. J Neurotrauma 2023; 40:2541-2551. [PMID: 37350129 PMCID: PMC10698778 DOI: 10.1089/neu.2023.0077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2023] Open
Abstract
Abstract Approximately one in three traumatic spinal cord injuries (SCIs) occurs during or shortly after the consumption of alcohol. A small number of retrospective clinical studies report variable effects of alcohol intoxication on mortality, neurological recovery, and complications after SCI. Some of these studies demonstrate a protective effect of alcohol intoxication on SCI outcomes, whereas others show an increased complication risk. Pre-clinical studies in rat, ferret, and feline SCI models report a detrimental effect of ethanol intoxication on hemorrhage, motor recovery, and biochemical markers of tissue injury. However, no studies to date have investigated the neuropathological consequences of ethanol intoxication at the time of SCI or the reciprocal effect of SCI on ethanol metabolism. Therefore, we combined a pre-clinical mouse model of acute ethanol intoxication and experimental vertebral level T9 contusion SCI to investigate their interactive effects in female mice. We first investigated the effect of SCI on ethanol metabolism and found that T9 SCI does not alter ethanol metabolism. However, we did find that isoflurane anesthesia significantly slowed ethanol metabolism independent of SCI. We also determined how acute ethanol intoxication at the time of SCI alters locomotor recovery and lesion pathology. Using the Basso Mouse Scale (BMS) and CatWalk XT Gait Analysis System, we assessed locomotor recovery for 6 weeks after injury and observed that acute ethanol intoxication at the time of injury did not alter locomotor recovery. We also found no effect of ethanol intoxication on heat hyperalgesia development. There was, however, a detrimental effect of ethanol on tissue sparing after SCI. Therefore, we conclude that acute alcohol intoxication at the time of injury may contribute to the neuropathological consequences of SCI.
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Affiliation(s)
- Ethan P. Glaser
- Department of Physiology, Spinal Cord and Brain Injury Research Center, College of Medicine, University of Kentucky, Lexington, Kentucky, USA
- Department of Psychology, University of Kentucky, Lexington, Kentucky, USA
| | - Andrew N. Stewart
- Department of Physiology, Spinal Cord and Brain Injury Research Center, College of Medicine, University of Kentucky, Lexington, Kentucky, USA
- Department of Psychology, University of Kentucky, Lexington, Kentucky, USA
| | - Julia E. Jagielo-Miller
- Department of Physiology, Spinal Cord and Brain Injury Research Center, College of Medicine, University of Kentucky, Lexington, Kentucky, USA
- Department of Psychology, University of Kentucky, Lexington, Kentucky, USA
| | - Caleb S. Bailey
- Department of Physiology, Spinal Cord and Brain Injury Research Center, College of Medicine, University of Kentucky, Lexington, Kentucky, USA
- Department of Psychology, University of Kentucky, Lexington, Kentucky, USA
| | - Mark A. Prendergast
- Department of Physiology, Spinal Cord and Brain Injury Research Center, College of Medicine, University of Kentucky, Lexington, Kentucky, USA
- Department of Psychology, University of Kentucky, Lexington, Kentucky, USA
| | - John C. Gensel
- Department of Physiology, Spinal Cord and Brain Injury Research Center, College of Medicine, University of Kentucky, Lexington, Kentucky, USA
- Department of Psychology, University of Kentucky, Lexington, Kentucky, USA
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Ayares G, Idalsoaga F, Arnold J, Fuentes-López E, Arab JP, Díaz LA. Public Health Measures and Prevention of Alcohol-Associated Liver Disease. J Clin Exp Hepatol 2022; 12:1480-1491. [PMID: 36340308 PMCID: PMC9630023 DOI: 10.1016/j.jceh.2022.05.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 05/25/2022] [Indexed: 12/12/2022] Open
Abstract
Hazardous alcohol consumption causes approximately 4% of deaths globally, constituting one of the leading risk factors for the burden of the disease worldwide. Alcohol has several health consequences, such as alcohol-associated liver disease, hepatocellular carcinoma, nonliver neoplasms, physical injury, cardiac disease, and psychiatric disorders. Alcohol misuse significantly affects workforce productivity, with elevated direct and indirect economic costs. Due to the high impact of alcohol consumption on the population, public health has led to the development of a range of strategies to reduce its harmful effects. Regulatory public health policies (PHP) for alcohol can exist at the global, regional, international, national, or subnational levels. Effective strategies incorporate a multilevel, multicomponent approach, targeting multiple determinants of drinking and alcohol-related harms. The World Health Organization categorizes the PHP into eight categories: national plan to fight the harmful consequences of alcohol, national license and production and selling control, taxes control and pricing policies, limiting drinking age, restrictions on alcohol access, driving-related alcohol policies, control over advertising and promotion, and government monitoring systems. These policies are supported by evidence from different populations, demonstrating that determinants of alcohol use depend on several factors such as socioeconomic level, age, sex, ethnicity, production, availability, marketing, and others. Although most policies have a significant individual effect, a higher number of PHP are associated with a lower burden of disease due to alcohol. The excessive consequences of alcohol constitute a call for action, and clinicians should advocate for developing and implementing a new PHP on alcohol consumption.
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Key Words
- ACLF, Acute-on-Chronic Liver Failure
- ALD, Alcohol-associated Liver Disease
- AUC, Area Under the Curve
- AUD, Alcohol Use Disorder
- AUDIT, Alcohol Use Disorders Identification Test
- AUDIT-C, Alcohol Use Disorders Identification Test Concise
- AVT, Alcohol Volumetric Tax
- BAC, Blood Alcohol Concentration
- DALYs, Disability-adjusted life years
- GDP, Gross domestic product
- PHP, Public Health Policies
- PNPLA3, Patatin-like Phospholipase Domain-containing 3
- USA, United States
- USD, United States Dollars
- WHO, World Health Organization
- alcohol use disorders
- alcohol-associated hepatitis
- cirrhosis
- fatty liver disease
- steatosis
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Affiliation(s)
- Gustavo Ayares
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Francisco Idalsoaga
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jorge Arnold
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Eduardo Fuentes-López
- Departamento de Ciencias de La Salud, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Juan P. Arab
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Luis A. Díaz
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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Pawłowicz K, Paczkowska-Walendowska M, Osmałek T, Cielecka-Piontek J. Towards the Preparation of a Hydrogel from Lyophilisates of the Aloe arborescens Aqueous Extract. Pharmaceutics 2022; 14:pharmaceutics14071489. [PMID: 35890383 PMCID: PMC9319300 DOI: 10.3390/pharmaceutics14071489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/07/2022] [Accepted: 07/15/2022] [Indexed: 12/10/2022] Open
Abstract
Aloe gel is a medicinal raw material with proven pharmacological activity. The health-promoting properties of other species of Aloe upon topical application prompted us to develop a formulation for the topical application of A. arborescence species. As a result of the gel preparation from the aqueous lyophilized extracts of three-year-old leaves of A. arborescence, no changes in the composition of the content of aloins A and aloenin A were found. The potential to neutralize free radicals was tested using DPPH and CUPRAC techniques, which confirmed the anti-radical activity of the lyophilisate. Screening of the inhibition of enzymes, the hyperactivity of which is associated with adverse changes in the skin of a pro-inflammatory nature, was performed. Importantly, using the PAMPA SKIN model, the possibility of the penetration of selected extract compounds (aloin A and aloenin A) through the skin was proven. Then, two formulations were prepared based on sodium alginate and hydroxypropyl methylcellulose (HPMC) and the hydrogels were characterized (rheological analysis, drug release profiles, permeability, and stability studies). HPMC-based hydrogel was the one with a targeted release of active substances and greater stability. Aloe arborescens hydrogel matrices seem to be a promising treatment strategy for inflammatory surface damage based on “green technology” at the stage of extract preparation and development of the drug form for topical application.
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Affiliation(s)
- Kamil Pawłowicz
- Department of Pharmacognosy, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland; (K.P.); (M.P.-W.)
- Phytopharm Klęka S.A., Klęka 1, 63-040 Nowe Miasto nad Warta, Poland
| | | | - Tomasz Osmałek
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland;
| | - Judyta Cielecka-Piontek
- Department of Pharmacognosy, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland; (K.P.); (M.P.-W.)
- Correspondence:
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Rosin FCP, Borges G, Pelissari C, Buck MGT, Dos Santos AF, Rodrigues L, Luz JGC, Corrêa L. Effect of chronic ethanol ingestion on dendritic cell population during oral mucosal repair: An experimental study. Eur J Oral Sci 2022; 130:e12865. [PMID: 35482465 DOI: 10.1111/eos.12865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/09/2022] [Indexed: 11/30/2022]
Abstract
The aim of this study was to analyze the effect of chronic ethanol ingestion on dendritic cell repopulation during the repair process of rat oral mucosa and in the rat spleen by analyzing the immunohistochemical expression of dendritic cell markers. Wistar rats ingested 20% ethanol solution for 28 days; a surgical wound was performed on the rat tongue after this period. The repair process and the number of CD1a+, CD11c+, and CD207+ cells in the regions adjacent to the wound were determined at day 1, 3, and 7 following the wound as well as in the rat spleen. The wound-only group (no ethanol exposure) had complete reepithelization after 7 days, but this did not occur in the ethanol + wound group at this time point. The inflammatory infiltrate was significantly reduced in animals exposed to ethanol, which also showed significantly lower counts of CD1a+, CD11c+, and CD207+ cells than the wound-only group at all experimental time points. In addition, ethanol exposure also resulted in lower densities of CD11c+ and CD207+ cells in the rat spleen. In conclusion, chronic ethanol intake had a negative impact on dendritic cell numbers, a fact that may contribute to delay in oral mucosa repair.
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Affiliation(s)
| | - Giuliana Borges
- General Pathology Department, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Cibele Pelissari
- Oral Pathology Department, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | | | | | - Lucimar Rodrigues
- Oral Surgery Department, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - João Gualberto C Luz
- Oral Surgery Department, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Luciana Corrêa
- General Pathology Department, School of Dentistry, University of São Paulo, São Paulo, Brazil
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Malherbe DC, Messaoudi I. Transcriptional and Epigenetic Regulation of Monocyte and Macrophage Dysfunction by Chronic Alcohol Consumption. Front Immunol 2022; 13:911951. [PMID: 35844518 PMCID: PMC9277054 DOI: 10.3389/fimmu.2022.911951] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/27/2022] [Indexed: 02/05/2023] Open
Abstract
Drinking alcohol, even in moderation, can affect the immune system. Studies have shown disproportionate effects of alcohol on circulating and tissue-resident myeloid cells (granulocytes, monocytes, macrophages, dendritic cells). These cells orchestrate the body's first line of defense against microbial challenges as well as maintain tissue homeostasis and repair. Alcohol's effects on these cells are dependent on exposure pattern, with acute drinking dampening but chronic drinking enhancing production of inflammatory mediators. Although chronic drinking is associated with heightened systemic inflammation, studies on tissue resident macrophage populations in several organs including the spleen, liver, brain, and lung have also shown compromised functional and metabolic capacities of these cells. Many of these effects are thought to be mediated by oxidative stress caused by alcohol and its metabolites which can directly impact the cellular epigenetic landscapes. In addition, since myeloid cells are relatively short-lived in circulation and are under constant repopulation from the bone marrow compartment, alcohol's effects on bone marrow progenitors and hematopoiesis are important for understanding the impact of alcohol systemically on these myeloid populations. Alcohol-induced disruption of progenitor, circulating, and tissue resident myeloid populations contribute to the increased susceptibility of patients with alcohol use disorders to viral and bacterial infections. In this review, we provide an overview of the impact of chronic alcohol consumption on the function of monocytes and macrophages in host defense, tissue repair and inflammation. We then summarize our current understanding of the mechanisms underlying alcohol-induced disruption and examine changes in transcriptome and epigenome of monocytes and mcrophages. Overall, chronic alcohol consumption leads to hyper-inflammation concomitant with decreased microbial and wound healing responses by monocytes/macrophages due to a rewiring of the epigentic and transcriptional landscape. However, in advanced alcoholic liver disease, myeloid cells become immunosuppressed as a response to the surrounding hyper-inflammatory milieu. Therefore, the effect of chronic alcohol on the inflammatory response depends on disease state and the immune cell population.
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Rahayu HSE, Nasruddin N, Nurani LH, Darmawati S, Rohmani A, Lutfiyati H, Wahyuningtyas ES, Sikumbang IM, Muhlisin Z, Sukeksi A, Nuroini F, Ishijima T, Sugama J, Nakatani T. Ethanolic extract of the natural product of Daun sirih (Piper betle) leaves may impede the effectiveness of the plasma jet contact style for acute wounds. CLINICAL PLASMA MEDICINE 2019. [DOI: 10.1016/j.cpme.2019.100090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Tam S, Weber RS, Liu J, Ting J, Hanson S, Lewis CM. Evaluating Unplanned Returns to the Operating Room in Head and Neck Free Flap Patients. Ann Surg Oncol 2019; 27:440-448. [PMID: 31410610 DOI: 10.1245/s10434-019-07675-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Indexed: 11/18/2022]
Abstract
BACKGROUND Head and neck oncologic surgery with reconstruction represents one of the most complex operations in otolaryngology. Unplanned return to the operating room represents an objective measure of postoperative complications. The purpose of this study was to identify reasons and risk factors for unplanned return to the operating room in patients undergoing head and neck surgery with reconstruction. METHODS This retrospective cohort study of 467 patients undergoing head and neck surgery with free flap reconstruction used a previously-developed Head and Neck-Reconstructive Surgery-specific National Surgical Quality Improvement Program. Disease and site-specific preoperative, intraoperative, and postoperative data were gathered. Comparisons between those with and without an unexpected return to the operating room were completed with univariate and multiple logistic regression models. RESULTS The rate of unexpected return to the operating room was 18.8% (88 patients). Most common reasons for URTOR were flap compromise (24 patients, 5.1%), postoperative infection (21 patients, 4.5%), and hematoma (20 patients, 4.3%). Two risk factors were identified by multivariate analysis: coagulopathy (ORadjusted = 2.83, 95% CI = 1.24-6.19, P = 0.010), and use of alcohol (ORadjusted = 1.9, 95% CI = 1.14-3.33, P = 0.025). CONCLUSIONS Preexisting coagulopathy and increased alcohol consumption were associated with increased risk of unexpected return to the operating room. These findings can aid physicians in preoperative patient counseling and medical optimization and can inform more precise risk stratification of patients undergoing head and neck surgery with reconstruction. Strategies to prevent and mitigate unexpected returns to the operating room will improve patient outcomes, decrease resource utilization, and facilitate successful integration into alternative payment models.
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Affiliation(s)
- Samantha Tam
- Department of Head and Neck Surgery, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Randal S Weber
- Department of Head and Neck Surgery, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jun Liu
- Department of Plastic and Reconstructive Surgery, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jose Ting
- Department of Head and Neck Surgery, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Summer Hanson
- Department of Plastic and Reconstructive Surgery, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Carol M Lewis
- Department of Head and Neck Surgery, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Chronic heavy drinking drives distinct transcriptional and epigenetic changes in splenic macrophages. EBioMedicine 2019; 43:594-606. [PMID: 31005514 PMCID: PMC6557917 DOI: 10.1016/j.ebiom.2019.04.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/08/2019] [Accepted: 04/12/2019] [Indexed: 02/06/2023] Open
Abstract
Background Chronic heavy alcohol drinking (CHD) leads to significant organ damage, increased susceptibility to infections, and delayed wound healing. These adverse outcomes are believed to be mediated by alterations in the function of myeloid cells; however, the mechanisms underlying these changes are poorly understood. Methods We determined the impact of CHD on the phenotype of splenic macrophages using flow cytometry. Changes in functional responses to LPS were measured using luminex and RNA-Seq. Finally, alterations in chromatin accessibility were uncovered using ATAC-Seq. Findings A history of CHD led to increased frequency of splenic macrophages that exhibited a heightened activation state at resting. Additionally, splenic macrophages from CHD animals generated a larger inflammatory response to LPS, both at protein and gene expression levels. Finally, CHD resulted in increased levels of H3K4me3, a histone mark of active promoters, as well as chromatin accessibility at promoters and intergenic regions that regulate inflammatory responses. Interpretation These findings suggest that a history of CHD alters the immune fitness of tissue-resident macrophages via epigenetic mechanisms. Fund National Institute on Alcohol Abuse and Alcoholism (NIAAA), National Institutes of Health (NIH) - R24AA019431, U01 AA13641, U01 AA13510, R21AA021947, and R21AA025839.
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Rosa DF, Sarandy MM, Novaes RD, da Matta SLP, Gonçalves RV. Effect of a high-fat diet and alcohol on cutaneous repair: A systematic review of murine experimental models. PLoS One 2017; 12:e0176240. [PMID: 28493875 PMCID: PMC5426595 DOI: 10.1371/journal.pone.0176240] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 03/07/2017] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND AND PURPOSE Chronic alcohol intake associated with an inappropriate diet can cause lesions in multiple organs and tissues and complicate the tissue repair process. In a systematic review, we analyzed the relevance of alcohol and high fat consumption to cutaneous and repair, compared the main methodologies used and the most important parameters tested. Preclinical investigations with murine models were assessed to analyze whether the current evidence support clinical trials. METHODS The studies were selected from MEDLINE/PubMed and Scopus databases, according to Fig 1. All 15 identified articles had their data extracted. The reporting bias was investigated according to the ARRIVE (Animal Research: Reporting of in Vivo Experiments) strategy. RESULTS In general, animals offered a high-fat diet and alcohol showed decreased cutaneous wound closure, delayed skin contraction, chronic inflammation and incomplete re-epithelialization. CONCLUSION In further studies, standardized experimental design is needed to establish comparable study groups and advance the overall knowledge background, facilitating data translatability from animal models to human clinical conditions.
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Affiliation(s)
- Daiane Figueiredo Rosa
- Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | | | - Rômulo Dias Novaes
- Department of Cell, Tissue and Developmental Biology, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
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Szkudelska K, Deniziak M, Roś P, Gwóźdź K, Szkudelski T. Resveratrol alleviates ethanol-induced hormonal and metabolic disturbances in the rat. Physiol Res 2016; 66:135-145. [PMID: 27782737 DOI: 10.33549/physiolres.933335] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Resveratrol is a polyphenol found in different plant species and having numerous health-promoting properties in animals and humans. However, its protective action against deleterious effects of ethanol is poorly elucidated. In the present study, the influence of resveratrol (10 mg/kg/day) on some hormones and metabolic parameters was determined in rats ingesting 10 % ethanol solution for two weeks. Blood levels of insulin, glucagon and adiponectin were affected by ethanol, however, resveratrol partially ameliorated these changes. Moreover, in ethanol drinking rats, liver lipid accumulation was increased, whereas resveratrol was capable of reducing liver lipid content, probably due to decrease in fatty acid synthesis. Resveratrol decreased also blood levels of triglycerides and free fatty acids and reduced gamma-glutamyl transferase activity in animals ingesting ethanol. These results show that resveratrol, already at low dose, alleviates hormonal and metabolic changes induced by ethanol in the rat and may be useful in preventing and treating some consequences of alcohol consumption.
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Affiliation(s)
- K Szkudelska
- Department of Animal Physiology and Biochemistry, Poznan University of Life Sciences, Poznan, Poland.
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Paul S, Jayan A, Sasikumar CS. Physical, chemical and biological studies of gelatin/chitosan based transdermal films with embedded silver nanoparticles. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2015. [DOI: 10.1016/s2222-1808(15)60968-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Lim SC, Lee KM, Kang TJ. Chitin from Cuttlebone Activates Inflammatory Cells to Enhance the Cell Migration. Biomol Ther (Seoul) 2015; 23:333-8. [PMID: 26157549 PMCID: PMC4489827 DOI: 10.4062/biomolther.2015.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 05/30/2015] [Accepted: 06/08/2015] [Indexed: 12/20/2022] Open
Abstract
Our previous report showed that the extract from cuttlebone (CB) had wound healing effect in burned lesion of rat and the extract was identified as chitin by HPLS analysis. We herein investigated the morphology in CB extract using scanning electron microscope (SEM). Chitin was used as a control. There is no difference in morphology between CB extract and chitin. We also assessed the role of CB extract on the production of inflammatory mediators using murine macrophages and the migration of inflammatory cells. The extract induced the production of nitric oxide (NO) in macrophages. While the extract of CB itself stimulated macrophages to increase the expression of pro-inflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6, CB extract suppressed the production of those cytokines by LPS. CB extract also induced the production of mouse IL-8 which is related to the cell migration, and treatment with CB enhanced fibroblast migration and invasion. Therefore, our results suggest that CB activates inflammatory cells to enhance the cell migration.
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Affiliation(s)
- Sung Cil Lim
- College of Pharmacy, The Catholic University of Korea, Bucheon 420-743
| | - Ki-Man Lee
- Institute of Chronic Diseases and College of Pharmacy, Sahmyook University, Seoul 139-742, Republic of Korea
| | - Tae Jin Kang
- Institute of Chronic Diseases and College of Pharmacy, Sahmyook University, Seoul 139-742, Republic of Korea
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Ferreira Verde L, Silva Lopes G, Miki Ihara SS, Hyppolito Jurkiewicz N, Jurkiewicz A. Acute treatment with alcohol affects calcium signaling and contraction associated with apoptosis in vas deferens of periadolescent rats. Eur J Pharmacol 2014; 735:211-8. [DOI: 10.1016/j.ejphar.2014.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 04/04/2014] [Accepted: 04/07/2014] [Indexed: 12/19/2022]
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Curtis BJ, Hlavin S, Brubaker AL, Kovacs EJ, Radek KA. Episodic binge ethanol exposure impairs murine macrophage infiltration and delays wound closure by promoting defects in early innate immune responses. Alcohol Clin Exp Res 2014; 38:1347-55. [PMID: 24689549 DOI: 10.1111/acer.12369] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 12/23/2013] [Indexed: 12/18/2022]
Abstract
BACKGROUND Exacerbation of cutaneous wound infections and delayed wound closure are frequent complications seen in alcohol exposed subjects who sustain injuries. We previously reported that acute alcohol exposure alters the early dermal inflammatory phase of wound healing and also several parameters of the proliferative wound healing phase in wounds from ethanol (EtOH)-treated mice for several days or weeks after EtOH exposure. Hence, it is likely that the cumulative defects arising in the early phases of the wound healing process directly contribute to the increased complications observed in intoxicated patients at the time of injury. METHODS C57BL/6 mice were given intraperitoneal EtOH (2.2 g/kg body weight) or vehicle (saline) EtOH using our episodic binge EtOH exposure protocol (3 days EtOH, 4 days off, 3 days EtOH) to yield a blood alcohol concentration (BAC) of 300 mg/dl at the time of wounding. Mice were subjected to six 3 mm full-thickness dorsal wounds and immediately treated topically with 10 μl of sterile saline (control) or diluted Staphylococcus aureus corresponding to 1 × 10(4) CFU/wound. Wounds were harvested at 24 hours post injury to evaluate wound area, neutrophil and macrophage accumulation, and the protein levels of cytokines, interleukin-6 (IL-6), IL-1β, and IL-10, and chemokines, macrophage inflammatory protein-2 (MIP-2) and MIP-1α, monocyte chemotactic protein-1 (MCP-1), and keratinocyte-derived chemokine (KC). The abundance and localization of cathelicidin-related antimicrobial peptide (CRAMP) and the kallikrein epidermal proteases (KLK5 and KLK7) were also determined. RESULTS Compared to control mice, EtOH-treated mice exhibited delayed wound closure, decreased macrophage accumulation, and impaired production of MIP-1α. Furthermore, skin from EtOH-treated mice demonstrated a reduction in the abundance of epidermal CRAMP and KLK7. CONCLUSIONS These findings suggest that EtOH exposure hinders several distinct components of the innate immune response, including phagocyte recruitment and chemokine/cytokine and AMP production. Together, these effects likely contribute to delayed wound closure and enhanced infection severity observed in intoxicated patients.
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Affiliation(s)
- Brenda J Curtis
- Health Sciences Division , Alcohol Research Program, The Burn and Shock Trauma Research Institute, Loyola University Chicago, Maywood, Illinois; Health Sciences Division , Department of Surgery, The Burn and Shock Trauma Research Institute, Loyola University Chicago, Maywood, Illinois
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Abstract
The distal airways are covered with a heterogeneous layer of cells known as the alveolar epithelium. Alveolar epithelial cells provide the major barrier between the airspace and fluid filled tissue compartments. As such, regulation of the alveolar epithelium is critical to maintain a healthy lung and for optimal gas exchange. In this chapter, we discuss functional roles for alveolar epithelial cells with particular emphasis on intercellular junctions and communication. As a thin layer of cells directly exposed to atmospheric oxygen, alveoli are particularly sensitive to oxidant insults. Alcohol significantly diminishes the normal antioxidant reserves of the alveolar epithelium, thereby rendering it sensitized for an exaggerated damage response to acute and chronic injuries. The effects of alcohol on alveolar epithelia are discussed along with open questions and potential therapeutic targets to prevent the pathophysiology of alcoholic lung disease.
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A new bone-anchored hearing implant: short-term retrospective data on implant survival and subjective benefit. Eur Arch Otorhinolaryngol 2013; 270:3019-25. [DOI: 10.1007/s00405-013-2346-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Accepted: 01/03/2013] [Indexed: 01/27/2023]
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Abstract
The body's response to tissue injury in a healthy individual is an intricate, sequential physiologic process that results in timely healing with full re-epithelialization, resolution of drainage, and return of function to the affected tissue. Chronic wounds, however, do not follow this sequence of events and can challenge the most experienced clinician if the underlying factors that are impairing wound healing are not identified. The purpose of this article is to present recent information about factors that impair wound healing with the underlying pathophysiological mechanism that interferes with the response to tissue injury. These factors include co-morbidities (diabetes, obesity, protein energy malnutrition), medications (steroids, non-steroidal anti-inflammatory drugs or NSAIDs, anti-rejection medications), oncology interventions (radiation, chemotherapy), and life style habits (smoking, alcohol abuse). Successful treatment of any chronic wound depends upon identification and management of the factors for each individual.
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Affiliation(s)
- Kristin Anderson
- Orthopedic Physical Therapy, Therapyworks, Inc., Santa Monica, CA, USA
| | - Rose L. Hamm
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, USA
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Andreuccetti G, Carvalho HB, Korcha R, Ye Y, Bond J, Cherpitel CJ. A review of emergency room studies on alcohol and injuries conducted in Latin America and the Caribbean region. Drug Alcohol Rev 2012; 31:737-46. [PMID: 22340601 PMCID: PMC3360159 DOI: 10.1111/j.1465-3362.2012.00419.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
ISSUES Alcohol-attributable burden of injury is one of the most serious public health problems in Latin America and the Caribbean region (LAC). Although knowledge on alcohol's involvement in injuries has progressed along with the implementation of evidenced-based alcohol policies in developed countries, this was not true for the most part of LAC countries for which reducing alcohol-related injuries is an urgent necessity. APPROACH A systematic review was performed in order to identify the most up-to-date information on alcohol and injuries derived from emergency room (ER) studies conducted in LAC. KEY FINDINGS Findings corroborate that alcohol has a high prevalence among injured patients in the ER setting in LAC, with violence-related injuries showing an increased association with alcohol use compared to unintentional injuries. However, a large number of studies did not include all types of injury and the measurement of injury risk associated with alcohol consumption. The amount of alcohol consumed in the event and hazardous drinking patterns seem to be strongly associated with injury occurrence, as well as drinking in public spaces, but a paucity of data relating to social-contextual factors limits the interpretation of the heterogeneity in the magnitude of the association of alcohol and injuries found across studies. CONCLUSIONS There is a lack of ER studies able to support strategies to reduce alcohol-related injuries in a region where effective alcohol policies are scant. Future research should focus on understanding how drinking influenced by local contexts and drinking behaviours may affect the risk of injury within each LAC country.
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Tian H, Lu Y, Shah SP, Hong S. Novel 14S,21-dihydroxy-docosahexaenoic acid rescues wound healing and associated angiogenesis impaired by acute ethanol intoxication/exposure. J Cell Biochem 2010; 111:266-73. [PMID: 20506249 PMCID: PMC3308707 DOI: 10.1002/jcb.22709] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Acute ethanol intoxication and exposure (AE) has been known to impair wound healing and associated angiogenesis. Here, we found that AE diminished the formation of novel reparative lipid mediator 14S,21-dihydroxy-docosa-4Z,7Z,10Z,12E,16Z,19Z-hexaenoic acid (14S,21-diHDHA) and its biosynthetic intermediate 14S-hydroxy-DHA (14S-HDHA) from docosahexaenoic acid (DHA) in murine wounds. However, AE did not reduce the formation of DHA and the intermediate 21-HDHA. These results indicate that in the biosynthetic pathways of 14S,21-diHDHA in wounds, AE suppresses the 14S-hydroxy-generating activity of 12-lipoxygenase-like (LOX-like), but does not suppress the 21-hydroxy-generating activity of cytochrome P450 and DHA-generating activities. The AE-suppression of 12-LOX-like activity was further confirmed by the diminished formation of 12-hydroxy-eicosatetraenoic acid in wounds under AE. Supplementing 14S,21-diHDHA to wounds rescued the AE-impaired healing and vascularization. 14S,21-diHDHA restored AE-impaired processes of angiogenesis in vitro: endothelial cell migration, tubulogenesis, and phosphorylation of p38 mitogen-activated protein kinase (MAPK). Taken together, the suppression of 14S,21-diHDHA formation is responsible, at least partially, for the AE-impairment of cutaneous wound healing and angiogenesis. Supplementing 14S,21-diHDHA to compensate its deficit in AE-impaired wounds rescues the healing and angiogenesis. These results provide a novel mechanistic insight for AE-impaired wound healing that involves the necessary roles of 14S,21-diHDHA. They also offer leads for developing 14S,21-diHDHA-related therapeutics to ameliorate AE-impairment of wound healing.
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Affiliation(s)
- Haibin Tian
- Louisiana State University, Health Science Center, Center of Neuroscience Excellence, New Orleans, LA 70112
| | - Yan Lu
- Louisiana State University, Health Science Center, Center of Neuroscience Excellence, New Orleans, LA 70112
| | - Shraddha P. Shah
- Louisiana State University, Health Science Center, Center of Neuroscience Excellence, New Orleans, LA 70112
| | - Song Hong
- Louisiana State University, Health Science Center, Center of Neuroscience Excellence, New Orleans, LA 70112
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