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Full-Text Articles in Anatomy

Nanosecond Pulsed Electric Fields Increase Antibiotic Susceptibility In Methicillin-Resistant Staphylococcus Aureus, Alexandra E. Chittams-Miles, Areej Malik, Erin B. Purcell, Claudia Muratori Jan 2024

Nanosecond Pulsed Electric Fields Increase Antibiotic Susceptibility In Methicillin-Resistant Staphylococcus Aureus, Alexandra E. Chittams-Miles, Areej Malik, Erin B. Purcell, Claudia Muratori

Bioelectrics Publications

Staphylococcus aureus is the leading cause of skin and soft-tissue infections (SSTIs). SSTIs caused by bacteria resistant to antimicrobials, such as methicillin-resistant S. aureus (MRSA), are increasing in incidence and have led to higher rates of hospitalization. In this study, we measured MRSA inactivation by nanosecond pulsed electric fields (nsPEF), a promising new cell ablation technology. Our results show that treatment with 120 pulses of 600 ns duration (28 kV/cm, 1 Hz), caused modest inactivation, indicating cellular damage. We anticipated that the perturbation created by nsPEF could increase antibiotic efficacy if nsPEF were applied as a co-treatment. To test this …


Covid-19 Vaccination And Alcohol Consumption: Justification Of Risks, Pavel A. Solopov Jan 2023

Covid-19 Vaccination And Alcohol Consumption: Justification Of Risks, Pavel A. Solopov

Bioelectrics Publications

Since the beginning of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, pharmaceutical companies and research institutions have been actively working to develop vaccines, and the mass roll-out of vaccinations against COVID-19 began in January 2021. At the same time, during lockdowns, the consumption of alcoholic beverages increased. During the peak of vaccination, consumption remained at high levels around the world, despite the gradual relaxation of quarantine restrictions. Two of the popular queries on search engines were whether it is safe to drink alcohol after vaccination and whether this will affect the effectiveness of vaccines. Over the past two …


The Heat Shock Protein 90 Inhibitor, At13387, Protects The Alveolo-Capillary Barrier And Prevents Hci-Induced Chronic Lung Injury And Pulmonary Fibrosis, Ruben M.L. Colunga Biancatelli, Pavel Solopov, Christiana Dimitropoulou, Betsy Gregory, Tierney Day, John D. Catravas Jan 2022

The Heat Shock Protein 90 Inhibitor, At13387, Protects The Alveolo-Capillary Barrier And Prevents Hci-Induced Chronic Lung Injury And Pulmonary Fibrosis, Ruben M.L. Colunga Biancatelli, Pavel Solopov, Christiana Dimitropoulou, Betsy Gregory, Tierney Day, John D. Catravas

Bioelectrics Publications

Hydrochloric acid (HCl) exposure causes asthma-like conditions, reactive airways dysfunction syndrome, and pulmonary fibrosis. Heat Shock Protein 90 (HSP90) is a molecular chaperone that regulates multiple cellular processes. HSP90 inhibitors are undergoing clinical trials for cancer and are also being studied in various pre-clinical settings for their anti-inflammatory and anti-fibrotic effects. Here we investigated the ability of the heat shock protein 90 (HSP90) inhibitor AT13387 to prevent chronic lung injury induced by exposure to HCl in vivo and its protective role in the endothelial barrier in vitro. We instilled C57Bl/6J mice with 0.1N HCl (2 µL/g body weight, intratracheally) and …


Optimizing Antidotal Treatment With The Oral Hsp90 Inhibitor Tas-116 Against Hydrochloric Acid-Induced Pulmonary Fibrosis In Mice, Pavel A. Solopov, Ruben Manuel Luciano Colunga Biancatelli, Christiana Dimitropolou, Tierney Day, John Catravas Jan 2022

Optimizing Antidotal Treatment With The Oral Hsp90 Inhibitor Tas-116 Against Hydrochloric Acid-Induced Pulmonary Fibrosis In Mice, Pavel A. Solopov, Ruben Manuel Luciano Colunga Biancatelli, Christiana Dimitropolou, Tierney Day, John Catravas

Bioelectrics Publications

Exposure to high concentrations of hydrochloric acid (HCl) can lead to severe acute and chronic lung injury. In the aftermath of accidental spills, victims may be treated for the acute symptoms, but the chronic injury is often overlooked. We have developed a mouse model of acute and chronic lung injury, in which the peak of acute lung injury occurs on the day 4 after HCl exposure. We have also demonstrated that HSP90 inhibitors are effective antidotes when administered starting 24 h after HCl. In this study we examined the hypothesis that the novel oral HSP90 inhibitor TAS-116 can effectively ameliorate …


Sex-Related Differences In Murine Models Of Chemically Induced Pulmonary Fibrosis, Pavel Solopov, Ruben Manuel Luciano Colunga Biancatelli, Christiana Dimitropoulou, John D. Catravas Jan 2021

Sex-Related Differences In Murine Models Of Chemically Induced Pulmonary Fibrosis, Pavel Solopov, Ruben Manuel Luciano Colunga Biancatelli, Christiana Dimitropoulou, John D. Catravas

Bioelectrics Publications

We developed two models of chemically induced chronic lung injury and pulmonary fibrosis in mice (intratracheally administered hydrochloric acid (HCl) and intratracheally administered nitrogen mustard (NM)) and investigated male-female differences. Female mice exhibited higher 30-day survival and less weight loss than male mice. Thirty days after the instillation of either HCl or NM, bronchoalveolar lavage fluid displayed a persistent, mild inflammatory response, but with higher white blood cell numbers and total protein content in males vs. females. Furthermore, females exhibited less collagen deposition, milder pulmonary fibrosis, and lower Ashcroft scores. After instillation of either HCl or NM, all animals displayed …


Hsp90 Inhibitors For Ipf/Covid-19, Ruben Manuel Luciano Colunga Biancatelli, Pavel A. Solopov, John Catravas Jan 2020

Hsp90 Inhibitors For Ipf/Covid-19, Ruben Manuel Luciano Colunga Biancatelli, Pavel A. Solopov, John Catravas

Bioelectrics Publications

Heat shock protein 90 (HSP90) is an important chaperone that assists the late stage folding of several proteins involved in cell survival in response to environmental stressors. The inhibition of HSP90 is followed by a complex modulation of the proteome and the kinome, that has proved beneficial in cancer and various neurodegenerative diseases. Additionally, accumulating literature suggests that HSP90 may be a key target during the development of pulmonary fibrosis and that its inhibition could serve as a new and exciting therapeutic approach. We have summarized the current evidence about HSP90’s role in Idiopathic Pulmonary Fibrosis (IPF), the results from …


Malignant Insulinoma With Multiple Liver Metastases And Hypercalcitoninemia In A Patient With Type 2 Diabetes Mellitus Presenting As Recurrent Episodes Of Diaphoresis Due To Severe Hypoglycemia, Marco Ciacciarelli, Gianluca Caruso, Marco Rengo, Piero Maceroni, Carmen Misurale, Eleonora D'Armiento, Cristina Napoli, Alberto Lombardini, Umberto Ceratti, Ruben Manuel Luciano Colunga Biancatelli, Leonardo Calvosa, Romina Milanese, Sonia Ferri, Teresa Massaro, Andrea Larusso, Veronica Sorrentino, Vincenzo Petrozza Jan 2020

Malignant Insulinoma With Multiple Liver Metastases And Hypercalcitoninemia In A Patient With Type 2 Diabetes Mellitus Presenting As Recurrent Episodes Of Diaphoresis Due To Severe Hypoglycemia, Marco Ciacciarelli, Gianluca Caruso, Marco Rengo, Piero Maceroni, Carmen Misurale, Eleonora D'Armiento, Cristina Napoli, Alberto Lombardini, Umberto Ceratti, Ruben Manuel Luciano Colunga Biancatelli, Leonardo Calvosa, Romina Milanese, Sonia Ferri, Teresa Massaro, Andrea Larusso, Veronica Sorrentino, Vincenzo Petrozza

Bioelectrics Publications

Insulinoma is an insulin-producing pancreatic neuroendocrine tumor that can be malignant in about 10% of cases. Locoregional invasion, lymph node metastases, or remote metastases are the main criteria of malignant insulinoma. Its incidence in patients with pre-existing diabetes mellitus (DM) is exceptionally rare. In this report, we describe a 66-year-old man with long-standing type 2 DM who presented with recurrent episodes of diaphoresis due to severe hypoglycemia despite the withdrawal of insulin therapy, hypercalcitoninemia, and biochemical and radiological findings suggestive of metastatic malignant insulinoma. Unfortunately, after few days of diazoxide treatment, edema, hypotension, oliguria, and water retention were observed, patient’s …


Enhanced Electric Pulse Technology For The Ablation Of Pancreatic Cancer, Siqi Guo, Niculina I. Burcus, Chelsea M. Edelblute, James Hornef, Chunqi Jiang, Karl Schoenbach, Richard Heller, Stephen J. Beebe Jan 2018

Enhanced Electric Pulse Technology For The Ablation Of Pancreatic Cancer, Siqi Guo, Niculina I. Burcus, Chelsea M. Edelblute, James Hornef, Chunqi Jiang, Karl Schoenbach, Richard Heller, Stephen J. Beebe

Bioelectrics Publications

Electric pulse based technology has been developed and studied as a non-thermal ablation method for local control of pancreatic cancer. Irreversible electroporation (IRE) has shown a significant survival benefit for local advanced pancreatic cancer in clinical trials. However, incomplete ablation with local recurrence and major complications limit the potential of this new technology. We have developed an integrated moderate heating electric pulse delivery system which consists of controllable tumor heating, multi-parameter monitoring and electric pulse delivery. The impedance of tumor is greatly decreased after moderate heating at 42°C for 1–2 min, which does not cause any cell death. Moderate heating …