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Articles 1321 - 1350 of 2016
Full-Text Articles in Medical Specialties
Fractured Inferior Vena Cava Filter Strut Presenting With St-Segment Elevation And Cardiac Tamponade, D. Khurana, J. Raza, S. Abrol, N.L. Coplan
Fractured Inferior Vena Cava Filter Strut Presenting With St-Segment Elevation And Cardiac Tamponade, D. Khurana, J. Raza, S. Abrol, N.L. Coplan
Journal Articles
No abstract provided.
Stress-Induced Cardiomyopathy, F. G. Lisung, A. B. Shah, H. L. Levitt, N. B. Coplan
Stress-Induced Cardiomyopathy, F. G. Lisung, A. B. Shah, H. L. Levitt, N. B. Coplan
Journal Articles
A woman in her early 70s presented with chest pain, dyspnoea and diaphoresis 30 min after her husband expired in our hospital. Cardiac markers were elevated and there were acute changes in ECG suggestive for acute coronary syndrome. Echocardiogram showed apical akinesis, basal segment hyperkinesis with an ejection fraction of 30%. Cardiac catheterisation was performed showing non-obstructive coronary arteries, leading to the diagnosis of stress-induced cardiomyopathy. The patient improved with medical management. Repeat echocardiogram 2 months later showed resolution of heart failure with an ejection fraction of 65-70%.
Comparative Review Of The Treatment Methodologies Of Carotid Stenosis, C. Bae, M. Szuchmacher, J. B. Chang
Comparative Review Of The Treatment Methodologies Of Carotid Stenosis, C. Bae, M. Szuchmacher, J. B. Chang
Journal Articles
The treatment of carotid stenosis entails three methodologies, namely, medical management, carotid angioplasty and stenting (CAS), as well as carotid endarterectomy (CEA). The North American Symptomatic Carotid Endarterectomy Trial (NASCET) and European Carotid Surgery Trial (ECST) have shown that symptomatic carotid stenosis greater than 70% is best treated with CEA. In asymptomatic patients with carotid stenosis greater than 60%, CEA was more beneficial than treatment with aspirin alone according to the Asymptomatic Carotid Atherosclerosis (ACAS) and Asymptomatic Carotid Stenosis Trial (ACST) trials. When CAS is compared with CEA, the CREST resulted in similar rates of ipsilateral stroke and death rates …
Competence Acquisition For Single-Incision Laparoscopic Cholecystectomy, G. B. Deutsch, S. A. Sathyanarayana, M. Giangola, M. Akerman, G., 3rd Denoto, J. D. Klein, H. Zemon, E. Rubach
Competence Acquisition For Single-Incision Laparoscopic Cholecystectomy, G. B. Deutsch, S. A. Sathyanarayana, M. Giangola, M. Akerman, G., 3rd Denoto, J. D. Klein, H. Zemon, E. Rubach
Journal Articles
BACKGROUND AND OBJECTIVES: Within the past few years, there has been a push for an even more minimally invasive approach to biliary disease with the adoption of single-incision laparoscopic cholecystectomy. We sought to compare 4 individual surgeon experiences to define whether there exists a learning curve for performing single-incision laparoscopic cholecystectomy. METHODS: We performed a retrospective review 290 single-incision laparoscopic cholecystectomies performed by a group of general surgeons, with varying levels of experience and training, at 3 institutions between May 2008 and September 2010. The procedure times were recorded for each single-incision laparoscopic cholecystectomy, ordered chronologically for each surgeon, and …
Survival Outcomes In Liver Transplant Recipients With Model For End-Stage Liver Disease Scores Of 40 Or Higher: A Decade-Long Experience, H. J. Panchal, J. B. Durinka, J. Patterson, F. Karipineni, S. Ashburn, E. Siskind, J. Ortiz
Survival Outcomes In Liver Transplant Recipients With Model For End-Stage Liver Disease Scores Of 40 Or Higher: A Decade-Long Experience, H. J. Panchal, J. B. Durinka, J. Patterson, F. Karipineni, S. Ashburn, E. Siskind, J. Ortiz
Journal Articles
BACKGROUND: The Model for End-stage Liver Disease (MELD) has been used as a prognostic tool since 2002 to predict pre-transplant mortality. Increasing proportions of transplant candidates with higher MELD scores, combined with improvements in transplant outcomes, mandate the need to study surgical outcomes in patients with MELD scores of >/=40. METHODS: A retrospective longitudinal analysis of United Network for Organ Sharing (UNOS) data on all liver transplantations performed between February 2002 and June 2011 (n = 33 398) stratified by MELD score (/=40) was conducted. The primary outcomes of interest were short- and longterm graft and patient survival. A Kaplan-Meier …
Emergency Roux-En-Y Gastric Bypass To Treat "Stenosis+Leak" Combination After Sleeve Gastrectomy In A Super-Super Obese Individual, M. A. Yerdel, A. G. Turkcapar, Michael Roslin
Emergency Roux-En-Y Gastric Bypass To Treat "Stenosis+Leak" Combination After Sleeve Gastrectomy In A Super-Super Obese Individual, M. A. Yerdel, A. G. Turkcapar, Michael Roslin
Journal Articles
No abstract provided.
Weight Trends In United States Living Kidney Donors: Analysis Of The Unos Database, M. Sachdeva, L. M. Rosen, J. Varghese, S. Fishbane, E. P. Molmenti
Weight Trends In United States Living Kidney Donors: Analysis Of The Unos Database, M. Sachdeva, L. M. Rosen, J. Varghese, S. Fishbane, E. P. Molmenti
Journal Articles
AIM: To analyze the national trends associated with body mass index (BMI) and living kidney donation. METHODS: Forty-seven thousand seven hundred and five adult living kidney donors as reported to the Organ Procurement and Transplantation Network from 1999 to 2011 were analyzed using their pre-donation BMI. Predictor variables of interest included age, gender, ethnicity, relationship, education status, and transplant region. RESULTS: Sixteen thousand nine hundred and seventy-one of the living kidney donors were normal weight (35.6%); 19337 were overweight (40.5%); 9007 were mildly obese (18.9%); 1992 were moderate to morbidly obese (4.2%). Overweight and mildly obese kidney donors have increased …
Growth Arrest-Specific Protein 6 Protects Against Renal Ischemia-Reperfusion Injury, M. D. Giangola, W. L. Yang, S. R. Rajayer, M. Kuncewitch, E. Molmenti, J. Nicastro, G. F. Coppa, P. Wang
Growth Arrest-Specific Protein 6 Protects Against Renal Ischemia-Reperfusion Injury, M. D. Giangola, W. L. Yang, S. R. Rajayer, M. Kuncewitch, E. Molmenti, J. Nicastro, G. F. Coppa, P. Wang
Journal Articles
BACKGROUND: Renal injury caused by ischemia-reperfusion (I/R) often occurs after shock or transplantation. Growth arrest-specific protein 6 (Gas6) is a secreted protein that binds to the TAM-Tyro3, Axl, Mer-family tyrosine kinase receptors, which modulate the inflammatory response and activate cell survival pathways. We hypothesized that Gas6 could have a protective role in attenuating the severity of renal injury after I/R. MATERIALS AND METHODS: Adult mice were subjected to 45 min of bilateral renal ischemia. Recombinant mouse Gas6 (rmGas6, 5 mug per mouse) or normal saline (vehicle) was administered intraperitoneally 1 h before ischemia and all subjects were sacrificed at 23 …
Adenocarcinoma Arising At Ileostomy Sites: Two Cases And A Review Of The Literature, L. Procaccino, S. Rehman, A. Abdurakhmanov, P. Mcwhorter, N. La Gamma, M. C. Bhaskaran, J. Maurer, G. M. Grimaldi, H. Rilo, J. Nicastro, G. Coppa, E. P. Molmenti, J. Procaccino
Adenocarcinoma Arising At Ileostomy Sites: Two Cases And A Review Of The Literature, L. Procaccino, S. Rehman, A. Abdurakhmanov, P. Mcwhorter, N. La Gamma, M. C. Bhaskaran, J. Maurer, G. M. Grimaldi, H. Rilo, J. Nicastro, G. Coppa, E. P. Molmenti, J. Procaccino
Journal Articles
Total colectomy with ileostomy placement is a treatment for patients with inflammatory bowel disease or familial adenomatous polyposis (FAP). A rare and late complication of this treatment is carcinoma arising at the ileostomy site. We describe two such cases: a 78-year-old male 30 years after subtotal colectomy and ileostomy for FAP, and an 85-year-old male 50 years after colectomy and ileostomy for ulcerative colitis. The long latency period between creation of the ileostomies and development of carcinoma suggests a chronic metaplasia due to an irritating/inflammatory causative factor. Surgical excision of the mass and relocation of the stoma is the mainstay …
The Role Of B-1 Cells In Inflammation, M. Aziz, N. E. Holodick, T. L. Rothstein, P. Wang
The Role Of B-1 Cells In Inflammation, M. Aziz, N. E. Holodick, T. L. Rothstein, P. Wang
Journal Articles
B-1 lymphocytes exhibit unique phenotypic, ontogenic, and functional characteristics that differ from the conventional B-2 cells. B-1 cells spontaneously secrete germline-like, repertoire-skewed polyreactive natural antibody, which acts as a first line of defense by neutralizing a wide range of pathogens before launching of the adaptive immune response. Immunomodulatory molecules such as interleukin-10, adenosine, granulocyte-macrophage colony-stimulating factor, interleukin-3, and interleukin-35 are also produced by B-1 cells in the presence or absence of stimulation, which regulate acute and chronic inflammatory diseases. Considerable progress has been made during the past three decades since the discovery of B-1 cells, which has improved not only …
Post Splenectomy Related Pulmonary Hypertension, A.V. Palkar, A. Agrawal, S. Verma, A. Iftikhar, E.J. Miller, A. Talwar
Post Splenectomy Related Pulmonary Hypertension, A.V. Palkar, A. Agrawal, S. Verma, A. Iftikhar, E.J. Miller, A. Talwar
Journal Articles
No abstract provided.
Mfg-E8 Inhibits Neutrophil Migration Through Alpha(V)Beta(3)-Integrin-Dependent Map Kinase Activation, M. Aziz, W. L. Yang, L. M. Corbo, W. W. Chaung, S. Matsuo, P. Wang
Mfg-E8 Inhibits Neutrophil Migration Through Alpha(V)Beta(3)-Integrin-Dependent Map Kinase Activation, M. Aziz, W. L. Yang, L. M. Corbo, W. W. Chaung, S. Matsuo, P. Wang
Journal Articles
We have previously demonstrated the involvement of milk fat globule-epidermal growth factor-factor 8 (MFG-E8) in reducing neutrophil infiltration in a murine model of acute lung injury (ALI). In the present study, we aimed to delineate the mechanisms through which MFG-E8 attenuates neutrophil migration. Recombinant human MFG-E8 (rhMFG-E8) was expressed and purified in our facility. The human differentiated neutrophil cell line, dHL-60, was treated with rhMFG-E8 and cell migration assay was performed in a Boyden chamber using recombinant interleukin-8 (IL-8) as the chemoattractant. Surface CXCR2 and intracellular G protein-coupled receptor kinase 2 (GRK2) levels were evaluated by flow cytometry or western …
Milk Fat Globule-Egf Factor Viii Attenuates Cns Injury By Promoting Neural Stem Cell Proliferation And Migration After Cerebral Ischemia, C. Cheyuo, M. Aziz, W. L. Yang, A. Jacob, M. Zhou, P. Wang
Milk Fat Globule-Egf Factor Viii Attenuates Cns Injury By Promoting Neural Stem Cell Proliferation And Migration After Cerebral Ischemia, C. Cheyuo, M. Aziz, W. L. Yang, A. Jacob, M. Zhou, P. Wang
Journal Articles
The mediators in activating neural stem cells during the regenerative process of neurogenesis following stroke have not been fully identified. Milk fat globule-EGF Factor VIII (MFGE8), a secreted glycoprotein serves several cellular functions by binding to its receptor, alpha(v)beta(3)-integrin. However, its role in regulating neural stem cells after stroke has not been determined yet. We therefore, aim to reveal whether MFG-E8 promotes neural stem cell proliferation and migration during stroke. Stroke was induced in wild-type (Wt) and MFG-E8-deficinet (Mfge8(-/-)) mice by transient middle cerebral artery occlusion (tMCAO). Commercially available recombinant mouse MFG-E8 (rmMFG-E8) was used for mechanistic assays in neural …
Blocking Cold-Inducible Rna-Binding Protein Protects Liver From Ischemia-Reperfusion Injury, A. Godwin, W. L. Yang, A. Sharma, A. Khader, Z. Wang, F. Zhang, J. Nicastro, G.F. Coppa, P. Wang
Blocking Cold-Inducible Rna-Binding Protein Protects Liver From Ischemia-Reperfusion Injury, A. Godwin, W. L. Yang, A. Sharma, A. Khader, Z. Wang, F. Zhang, J. Nicastro, G.F. Coppa, P. Wang
Journal Articles
Cold-inducible RNA-binding protein (CIRP) is a nuclear protein that has been recently identified as a novel inflammatory mediator in hemorrhagic shock and sepsis. We hypothesized that CIRP acts as a potent inflammatory mediator in hepatic ischemia-reperfusion (I/R), and thus blocking CIRP protects against I/R-induced liver injury. Male C57BL/6 mice were subjected to 70% hepatic ischemia by microvascular clamping of the hilum of the left and median liver lobes for 60 min, followed by reperfusion. Anti-CIRP antibody (1 mg/kg body weight) or vehicle (normal saline) in 0.2 mL was injected via the internal jugular vein at the beginning of the reperfusion. …
Neutralization Of Osteopontin Attenuates Neutrophil Migration In Sepsis-Induced Acute Lung Injury, Y. Hirano, M. Aziz, W.L. Yang, Z. Wang, M. Zhou, M. Ochani, A. Khader, P. Wang
Neutralization Of Osteopontin Attenuates Neutrophil Migration In Sepsis-Induced Acute Lung Injury, Y. Hirano, M. Aziz, W.L. Yang, Z. Wang, M. Zhou, M. Ochani, A. Khader, P. Wang
Journal Articles
INTRODUCTION: Sepsis refers to severe systemic inflammation leading to acute lung injury (ALI) and death. Introducing novel therapies can reduce the mortality in ALI. Osteopontin (OPN), a secretory glycoprotein produced by immune reactive cells, plays a deleterious role in various inflammatory diseases. However, its role in ALI caused by sepsis remains unexplored. We hypothesize that treatment with an OPN-neutralizing antibody (anti-OPN Ab) protects mice against ALI during sepsis. METHODS: Sepsis was induced in 8-week-old male C57BL/6 mice by cecal ligation and puncture (CLP). Anti-OPN Ab or non-immunized IgG as control, at a dose of 50 mug/mouse, was intravenously injected at …
Endoplasmic Reticulum Stress In Sepsis, M. M. Khan, W.L. Yang, P. Wang
Endoplasmic Reticulum Stress In Sepsis, M. M. Khan, W.L. Yang, P. Wang
Journal Articles
Sepsis is an enormous public health issue and the leading cause of death in critically ill patients in intensive care units. Overwhelming inflammation, characterized by cytokine storm, oxidative threats, and neutrophil sequestration, is an underlying component of sepsis-associated organ failure. Despite recent advances in sepsis research, there is still no effective treatment available beyond the standard of care and supportive therapy. To reduce sepsis-related mortality, a better understanding of the biological mechanism associated with sepsis is essential. Endoplasmic reticulum (ER), a subcellular organelle, is responsible for the facilitation of protein folding and assembly and involved in several other physiological activities. …
Stimulation Of Wnt/Beta-Catenin Signaling Pathway With Wnt Agonist Reduces Organ Injury After Hemorrhagic Shock, M. Kuncewitch, W.L. Yang, A. Jacob, A. Khader, M. Giangola, Jeffrey Nicastro, G. Coppa, P. Wang
Stimulation Of Wnt/Beta-Catenin Signaling Pathway With Wnt Agonist Reduces Organ Injury After Hemorrhagic Shock, M. Kuncewitch, W.L. Yang, A. Jacob, A. Khader, M. Giangola, Jeffrey Nicastro, G. Coppa, P. Wang
Journal Articles
BACKGROUND: Hemorrhagic shock is a leading cause of morbidity and mortality in surgery and trauma patients. Despite a large number of preclinical trials conducted to develop therapeutic strategies against hemorrhagic shock, there is still an unmet need for effective therapy for hemorrhage patients. Wnt/beta-catenin signaling controls developmental processes and cellular regeneration owing to its central role in cell survival and proliferation. We therefore hypothesized that the activation of Wnt signaling reduces systemic injury caused by hemorrhagic shock. METHODS: Adult male Sprague-Dawley rats underwent hemorrhagic shock by controlled bleeding of the femoral artery to maintain a mean arterial pressure of 30 …
Stimulation Of Brain Amp-Activated Protein Kinase Attenuates Inflammation And Acute Lung Injury In Sepsis, N. Mulchandani, W.L. Yang, M. M. Khan, F. Zhang, P. Marambaud, J. Nicastro, G.F. Coppa, P. Wang
Stimulation Of Brain Amp-Activated Protein Kinase Attenuates Inflammation And Acute Lung Injury In Sepsis, N. Mulchandani, W.L. Yang, M. M. Khan, F. Zhang, P. Marambaud, J. Nicastro, G.F. Coppa, P. Wang
Journal Articles
Sepsis and septic shock are enormous public health problems with astronomical financial repercussions on health systems worldwide. The central nervous system (CNS) is closely intertwined in the septic process but the underlying mechanism is still obscure. AMP-activated protein kinase (AMPK) is a ubiquitous energy sensor enzyme and plays a key role in regulation of energy homeostasis and cell survival. In this study, we hypothesized that activation of AMPK in the brain would attenuate inflammatory responses in sepsis, particularly in the lungs. Adult C57BL/6 male mice were treated with 5-aminoimidazole-4-carboxamide riboneucleotide (AICAR, 20 ng), an AMPK activator, or vehicle (normal saline) …
Differential Alterations Of Tissue T-Cell Subsets After Sepsis, A. Sharma, W.L. Yang, S. Matsuo, P. Wang
Differential Alterations Of Tissue T-Cell Subsets After Sepsis, A. Sharma, W.L. Yang, S. Matsuo, P. Wang
Journal Articles
Among immune cells in responding to sepsis, macrophages and neutrophils have been extensively studied, while the contribution of T lymphocytes and natural killer T (NKT) cells is less well characterized. Here we monitored tissue specific changes of T cell subsets in male C57BL/6 mice subjected to sham operation or cecal ligation and puncture (CLP) to induce polymicrobial sepsis. Thymus, spleen, liver, lungs and blood were processed and analyzed 20h later. Total lymphocyte count showed a significant reduction in septic thymus, spleen and blood but not in lungs and liver. The septic thymi were hypocellular with severe reduction in cell numbers …
Human Ghrelin Mitigates Intestinal Injury And Mortality After Whole Body Irradiation In Rats, Z. M. Wang, W.L. Yang, A. Jacob, M. Aziz, P. Wang
Human Ghrelin Mitigates Intestinal Injury And Mortality After Whole Body Irradiation In Rats, Z. M. Wang, W.L. Yang, A. Jacob, M. Aziz, P. Wang
Journal Articles
Widespread use of ionizing radiation has led to the realization of the danger associated with radiation exposure. Although studies in radiation countermeasures were initiated a half century ago, an effective therapy for a radiomitigator has not been identified. Ghrelin is a gastrointestinal hormone, and administration of ghrelin is protective in animal models of injuries including radiation combined injury. To test whether ghrelin can be protective in whole body irradiaton (WBI) alone, male Sprague Dawley (SD) rats were treated with human ghrelin (20 nmol/rat) daily for 6 days starting at either 24 h or 48 h after 10 Gray (Gy) WBI …
Combination Of Adrenomedullin With Its Binding Protein Accelerates Cutaneous Wound Healing, J. P. Idrovo, W. L. Yang, A. Jacob, M. A. Ajakaiye, C. Cheyuo, Z. M. Wang, J. M. Prince, J. Nicastro, G.F. Coppa, P. Wang
Combination Of Adrenomedullin With Its Binding Protein Accelerates Cutaneous Wound Healing, J. P. Idrovo, W. L. Yang, A. Jacob, M. A. Ajakaiye, C. Cheyuo, Z. M. Wang, J. M. Prince, J. Nicastro, G.F. Coppa, P. Wang
Journal Articles
Cutaneous wound continues to cause significant morbidity and mortality in the setting of diseases such as diabetes and cardiovascular diseases. Despite advances in wound care management, there is still an unmet medical need exists for efficient therapy for cutaneous wound. Combined treatment of adrenomedullin (AM) and its binding protein-1 (AMBP-1) is protective in various disease conditions. To examine the effect of the combination treatment of AM and AMBP-1 on cutaneous wound healing, full-thickness 2.0-cm diameter circular excision wounds were surgically created on the dorsum of rats, saline (vehicle) or AM/AMBP1 (96/320 mu g kg BW) was topically applied to the …
An Interesting Cause Of Mechanical Small Bowel Obstruction, S. A. Sathyanarayana, G. B. Deutsch, B. Friedman
An Interesting Cause Of Mechanical Small Bowel Obstruction, S. A. Sathyanarayana, G. B. Deutsch, B. Friedman
Journal Articles
Foreign body ingestion is a known cause of abdominal pain in pediatric population occurring between 6 months and 3 years of age (Wyllie Curr Opin Pediatr 18:563, 2006, Uyemura Am Fam Physician 72:287, 2005, Banerjee Indian J Pediatr 72:173, 2005). Most of the ingested foreign bodies pass spontaneously with 10-20 % requiring endoscopic retrieval, and < 1 % of cases require a surgical intervention (Wyllie Curr Opin Pediatr 18:563, 2006, Uyemura Am Fam Physician 72:287, 2005, Shivakumar Indian J Pediatr 71:689, 2004). Presence of intestinal obstruction necessitates surgical intervention to extract the ingested foreign body. Initial abdominal plain radiograph should be obtained when foreign body ingestion is suspected, which differentiates a radiopaque from radiolucent foreign bodies. A computed tomography with 3D reconstruction (3D-CT) is recommended with radiolucent foreign bodies (Uyemura Am Fam Physician 72:287, 2005, Kazam Am J Emerg Med 23:897, 2005). After 24 h of expectant management, failure of spontaneous passage requires further intervention. Timely intervention to relieve the obstruction is pivotal to prevent undue complications. We present an interesting case of a boy who ingested a radiolucent foreign body diagnosed on 3D-CT, successfully treated with surgical extraction.
Fdg-Pet-Positive Lower-Extremity Sebaceous-Gland Carcinoma In A Patient With Muir-Torre Syndrome, B. Kviatkovsky, E. Landau, M. Siddique, S. Hossri, A. Ebaee, J.P. Attalah, A. Picon, A. Brenner
Fdg-Pet-Positive Lower-Extremity Sebaceous-Gland Carcinoma In A Patient With Muir-Torre Syndrome, B. Kviatkovsky, E. Landau, M. Siddique, S. Hossri, A. Ebaee, J.P. Attalah, A. Picon, A. Brenner
Journal Articles
Sebaceous-gland carcinoma can occur alone or as one of the defining features of the Muir-Torre syndrome. Cases occurring below the head and neck are extremely rare. Here we describe the case of a 70-year-old male with Muir-Torre syndrome who had a recurrent sebaceous-gland carcinoma in the left lower extremity that demonstrated 18F-FDG avidity. An 18F-FDG-avid lower-extremity sebaceous-gland carcinoma has not been previously reported.
Combining Task-Evoked And Spontaneous Activity To Improve Pre-Operative Brain Mapping With Fmri, M. D. Fox, T. Qian, J. R. Madsen, D. Wang, M. Ge, H. C. Zuo, D. M. Groppe, A. D. Mehta, B. Hong, H. Liu, +1 Additional Author
Combining Task-Evoked And Spontaneous Activity To Improve Pre-Operative Brain Mapping With Fmri, M. D. Fox, T. Qian, J. R. Madsen, D. Wang, M. Ge, H. C. Zuo, D. M. Groppe, A. D. Mehta, B. Hong, H. Liu, +1 Additional Author
Journal Articles
Noninvasive localization of brain function is used to understand and treat neurological disease, exemplified by pre-operative fMRI mapping prior to neurosurgical intervention. The principal approach for generating these maps relies on brain responses evoked by a task and, despite known limitations, has dominated clinical practice for over 20years. Recently, pre-operative fMRI mapping based on correlations in spontaneous brain activity has been demonstrated, however this approach has its own limitations and has not seen widespread clinical use. Here we show that spontaneous and task-based mapping can be performed together using the same pre-operative fMRI data, provide complimentary information relevant for functional …
Galantamine Attenuates Type 1 Diabetes And Inhibits Anti-Insulin Antibodies In Non-Obese Diabetic Mice, W. M. Hanes, P. S. Olofsson, K. Kwan, L. K. Hudson, S. S. Chavan, V. A. Pavlov, K. J. Tracey
Galantamine Attenuates Type 1 Diabetes And Inhibits Anti-Insulin Antibodies In Non-Obese Diabetic Mice, W. M. Hanes, P. S. Olofsson, K. Kwan, L. K. Hudson, S. S. Chavan, V. A. Pavlov, K. J. Tracey
Journal Articles
Type 1 diabetes in mice is characterized by autoimmune destruction of insulin-producing pancreatic beta cells. Disease pathogenesis involves invasion of pancreatic islets by immune cells, including macrophages and T cells, and production of antibodies to self-antigens, including insulin. Activation of the inflammatory reflex, the neural circuit that inhibits inflammation, culminates on cholinergic receptor signals on immune cells to attenuate cytokine release and inhibit B cell antibody production. Here, we show that galantamine, a centrally acting acetylcholinesterase inhibitor and an activator of the inflammatory reflex, attenuates murine experimental type 1 diabetes. Administration of galantamine to animals immunized with keyhole limpet hemocyanin …
Damp Signaling Is A Key Pathway Inducing Immune Modulation After Brain Injury, A. Liesz, A. Dalpke, E. Mracsko, D. J. Antoine, S. Roth, W. Zhou, H. Yang, P. P. Nawroth, K. J. Tracey, R. Veltkamp, +4 Additional Authors
Damp Signaling Is A Key Pathway Inducing Immune Modulation After Brain Injury, A. Liesz, A. Dalpke, E. Mracsko, D. J. Antoine, S. Roth, W. Zhou, H. Yang, P. P. Nawroth, K. J. Tracey, R. Veltkamp, +4 Additional Authors
Journal Articles
Acute brain lesions induce profound alterations of the peripheral immune response comprising the opposing phenomena of early immune activation and subsequent immunosuppression. The mechanisms underlying this brain-immune signaling are largely unknown. We used animal models for experimental brain ischemia as a paradigm of acute brain lesions and additionally investigated a large cohort of stroke patients. We analyzed release of HMGB1 isoforms by mass spectrometry and investigated its inflammatory potency and signaling pathways by immunological in vivo and in vitro techniques. Features of the complex behavioral sickness behavior syndrome were characterized by homecage behavior analysis. HMGB1 downstream signaling, particularly with RAGE, …
Regulation Of Post-Translational Modifications Of Hmgb1 During Immune Responses, B. Lu, Y. Tang, X. Zhao, D. Antoine, X. Xiao, H. Wang, U. Andersson, T. Billiar, K. J. Tracey
Regulation Of Post-Translational Modifications Of Hmgb1 During Immune Responses, B. Lu, Y. Tang, X. Zhao, D. Antoine, X. Xiao, H. Wang, U. Andersson, T. Billiar, K. J. Tracey
Journal Articles
SIGNIFICANCE: High mobility group protein 1 (HMGB1) is an evolutionarily conserved and multi-functional protein. The biological function of HMGB1 depends on its cellular locations, binding partners, and redox states. Extracellular HMGB1 is a mediator of inflammation during infection or tissue injury. Immune cells actively release HMGB1 in response to infection, which in turn orchestrates both innate and adaptive immune responses. RECENT ADVANCES: Hyperacetylation of HMGB1 within its nuclear localization sequences mobilizes HMGB1 from the nucleus to the cytoplasm and subsequently promotes HMGB1 release. The redox states of the cysteines in position 23, 45 and 106 determine the biological activity of …
A Unifying Principle Underlying The Extracellular Field Potential Spectral Responses In The Human Cortex, E. Podvalny, N. Noy, M. Harel, S. Bickel, G. Chechik, C. E. Schroeder, A. D. Mehta, M. Tsodyks, R. Malach
A Unifying Principle Underlying The Extracellular Field Potential Spectral Responses In The Human Cortex, E. Podvalny, N. Noy, M. Harel, S. Bickel, G. Chechik, C. E. Schroeder, A. D. Mehta, M. Tsodyks, R. Malach
Journal Articles
Electrophysiological mass potentials show complex spectral changes upon neuronal activation. However, it is unknown to what extent these complex band-limited changes are interrelated or, alternatively, reflect separate neuronal processes. To address this question, intracranial electrocorticograms (ECoG) responses were recorded in patients engaged in visuomotor tasks. We found that in the 10- to 100-Hz frequency range there was a significant reduction in the exponent chi of the 1/f(chi) component of the spectrum associated with neuronal activation. In a minority of electrodes showing particularly high activations the exponent reduction was associated with specific band-limited power modulations: emergence of a high gamma (80-100 …
Neutrophil Trafficking In Pulmonary Inflammation: Monitoring Migration And Blockade With 111in-Labeled Leukocytes, C. Palestro, H. M. Linge, K. J. Nichols, K. Ochani, K. Bhargava, E. J. Miller
Neutrophil Trafficking In Pulmonary Inflammation: Monitoring Migration And Blockade With 111in-Labeled Leukocytes, C. Palestro, H. M. Linge, K. J. Nichols, K. Ochani, K. Bhargava, E. J. Miller
Journal Articles
No abstract provided.
Resident Endothelial Cells And Endothelial Progenitor Cells Restore Endothelial Barrier Function After Inflammatory Lung Injury, S. Z. Mao, X. B. Ye, G. Liu, D. M. Song, S. F. Liu
Resident Endothelial Cells And Endothelial Progenitor Cells Restore Endothelial Barrier Function After Inflammatory Lung Injury, S. Z. Mao, X. B. Ye, G. Liu, D. M. Song, S. F. Liu
Journal Articles
Objective Disruption of endothelial barrier integrity is a characteristic of many inflammatory conditions. However, the origin and function of endothelial cells (ECs) restoring endothelial barrier function remain unknown. This study defined the roles of resident ECs (RECs) and bone marrow-derived endothelial progenitor cells (BMDEPCs) in endothelial barrier restoration after endotoxemic lung injury. Approach and Results We generated mice that enable to quantify proliferating RECs or BMDEPCs and also to study the causal link between REC or BMDEPC proliferation and endothelial barrier restoration. Using these mouse models, we showed that endothelial barrier restoration was associated with increased REC and BMDEPC proliferation. …