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Andersen A, Milefchik E, Papworth E, Penaluna B, Dawes K, Moody J, Weeks G, Froehlich E, deBlois K, Long JD, Philibert R. ZSCAN25 methylation predicts seizures and severe alcohol withdrawal syndrome. Epigenetics 2024; 19:2298057. [PMID: 38166538 PMCID: PMC10766392 DOI: 10.1080/15592294.2023.2298057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 12/11/2023] [Indexed: 01/04/2024] Open
Abstract
Currently, clinicians use their judgement and indices such as the Prediction of Alcohol Withdrawal Syndrome Scale (PAWSS) to determine whether patients are admitted to hospitals for consideration of withdrawal syndrome (AWS). However, only a fraction of those admitted will experience severe AWS. Previously, we and others have shown that epigenetic indices, such as the Alcohol T-Score (ATS), can quantify recent alcohol consumption. However, whether these or other alcohol biomarkers, such as carbohydrate deficient transferrin (CDT), could identify those at risk for severe AWS is unknown. To determine this, we first conducted genome-wide DNA methylation analyses of subjects entering and exiting alcohol treatment to identify loci whose methylation quickly reverted as a function of abstinence. We then tested whether methylation at a rapidly reverting locus, cg07375256, or other existing metrics including PAWSS scores, CDT levels, or ATS, could predict outcome in 125 subjects admitted for consideration of AWS. We found that PAWSS did not significantly predict severe AWS nor seizures. However, methylation at cg07375256 (ZSCAN25) and CDT strongly predicted severe AWS with ATS (p < 0.007) and cg07375256 (p < 6 × 10-5) methylation also predicting AWS associated seizures. We conclude that epigenetic methods can predict those likely to experience severe AWS and that the use of these or similar Precision Epigenetic approaches could better guide AWS management.
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Affiliation(s)
- Allan Andersen
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Emily Milefchik
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Emma Papworth
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Brandan Penaluna
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Kelsey Dawes
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
- Behavioral Diagnostics LLC, Coralville, IA, USA
| | - Joanna Moody
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Gracie Weeks
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Ellyse Froehlich
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Kaitlyn deBlois
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Jeffrey D Long
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
- Department of Biostatistics, University of Iowa, Iowa City, IA, USA
| | - Robert Philibert
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
- Behavioral Diagnostics LLC, Coralville, IA, USA
- Department of Biomedical Engineering, University of Iowa, Iowa City, IA, USA
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Chanphai P, Froehlich E, Mandeville JS, Tajmir-Riahi HA. Protein conjugation with PAMAM nanoparticles: Microscopic and thermodynamic analysis. Colloids Surf B Biointerfaces 2016; 150:168-174. [PMID: 27914253 DOI: 10.1016/j.colsurfb.2016.11.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 10/03/2016] [Accepted: 11/26/2016] [Indexed: 01/05/2023]
Abstract
PAMAM dendrimers form strong protein conjugates that are used in drug delivery systems. We report the thermodynamic and binding analysis of polyamidoamine (PAMAM-G4) conjugation with human serum albumin (HSA), bovine serum albumin (BSA) and milk beta-lactoglobulin (b-LG) in aqueous solution at physiological pH. Hydrophobicity played a major role in PAMAM-protein interactions with more hydrophobic b-LG forming stronger polymer-protein conjugates. Thermodynamic parameters showed PAMAM-protein bindings occur via hydrophobic and H-bonding contacts for b-LG, while van der waals and H-bonding interactions prevail in HSA and BSA-polymer conjugates. The protein loading efficacy was 45-55%. PAMAM complexation induced major alterations of protein conformation. TEM images show major polymer morphological changes upon protein conjugation.
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Affiliation(s)
- P Chanphai
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C. P. 500, TR (Quebec) Canada G9A 5H7, Canada
| | - E Froehlich
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C. P. 500, TR (Quebec) Canada G9A 5H7, Canada
| | - J S Mandeville
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C. P. 500, TR (Quebec) Canada G9A 5H7, Canada
| | - H A Tajmir-Riahi
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C. P. 500, TR (Quebec) Canada G9A 5H7, Canada.
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Strobel D, Bernatik T, Blank W, Will U, Reichel A, Wüstner M, Keim V, Schacherer D, Barreiros AP, Kunze G, Nürnberg D, Ignee A, Burmester E, Bunk AA, Friedrich-Rust M, Froehlich E, Schuler A, Jenssen C, Bohle W, Mauch M, Dirks K, Kaemmer J, Pachmann C, Stock J, Hocke M, Kendel A, Schmidt C, Jakobeit C, Kinkel H, Heinz W, Hübner G, Pichler M, Müller T. Incidence of bleeding in 8172 percutaneous ultrasound-guided intraabdominal diagnostic and therapeutic interventions - results of the prospective multicenter DEGUM interventional ultrasound study (PIUS study). Ultraschall Med 2015; 36:122-131. [PMID: 25876060 DOI: 10.1055/s-0034-1399282] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
PURPOSE To analyse the incidence of bleeding after percutaneous ultrasound guided diagnostic and therapeutic intraabdominal interventions in a prospective multicentre study (DEGUM percutaneous interventional ultrasound study). MATERIALS AND METHODS Within a time period of 2 years diagnostic and therapeutic intraabdominal interventions (with the exclusion of ascites paracentesis) performed percutaneously under continuous ultrasound (US) guidance were prospectively assessed using a pseudonymized standardized web site entry form. Number and type of intervention, operator experience, patient characteristics, medication, lab data as well as technical aspects of the procedure and bleeding complications were analysed according to the interventional radiology standards. RESULTS 8172 US-guided intraabdominal interventions (liver n = 5903; pancreas n = 501, kidney n = 434, lymph node = 272, biliary system n = 153, spleen n = 63, other abdominal organs and extra-organic targets n = 999) were analysed in 30 hospitals. The majority were diagnostic biopsies including 1780 liver parenchyma, 3400 focal liver lesions and 404 pancreatic lesions. 7525 interventions (92.1 %) were performed in hospitalized patients (mean age 62.6 years). Most operators were highly experienced in US-guided interventions (> 500 interventions prior to the study n = 5729; 70.1 %). Sedation was administered in 1131 patients (13.8 %). Needle diameter was ≥ 1 mm in 7162 punctures (87.9 %) with main focus on core needle biopsies (18 G, n = 4185). Clinically relevant bleeding complications with need of transfusion (0.4 %), surgical bleeding control (0.1 %) and radiological coiling (0.05 %) were very rare. Bleeding complications with fatal outcome occurred in four patients (0.05 %). The frequency of major bleeding complications was significantly higher in patients with an INR > 1.5 (p < 0.001) and patients taking a medication potentially interfering with platelet function or plasmatic coagulation (p < 0.0333). CONCLUSION This prospective multicentre study confirms the broad spectrum of percutaneous US-guided intraabdominal interventions. However diagnostic liver biopsies dominate with the use of core needle biopsies (18 G). Percutaneous US-guided interventions performed by experienced sonographers are associated with a low bleeding risk. Major bleeding complications are very rare. A pre-interventional INR < 1.5 and individual medication risk assessment are recommended.
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Affiliation(s)
- D Strobel
- Internal Medicine 1, University Hospital Erlangen, Germany
| | - T Bernatik
- Department of Internal Medicine, District Hospital Ebersberg, Germany
| | - W Blank
- Department of Internal Medicine 1, Municipal Hospital Steinenberg, Reutlingen, Germany
| | - U Will
- Department of Gastroenterology, Municipal Hospital (Waldklinikum Gera gGmbH), Gera, Germany
| | - A Reichel
- Department of Gastroenterology, Municipal Hospital (Waldklinikum Gera gGmbH), Gera, Germany
| | - M Wüstner
- Central Interdisciplinary Ultrasound, Municipal Hospital Trier (Barmherzige Brüder), Trier, Germany
| | - V Keim
- Department of Gastroenterology, Central Ultrasound Unit, University Hospital Leipzig, Germany
| | - D Schacherer
- Department of Internal Medicine 1, University Hospital Regensburg, Germany
| | - A P Barreiros
- Department of Internal Medicine 1, University Hospital Mainz, Germany
| | - G Kunze
- Department of Internal Medicine 1, Municipal Hospital (Schwarzwald-Baar), Villingen-Schwenningen, Germany
| | - D Nürnberg
- Department of Internal Medicine B, Gastroenterology, District Hospital (Ruppiner Kliniken), Neuruppin, Germany
| | - A Ignee
- Department of Internal Medicine 2, Municipal Hospital (Caritas), Bad Mergentheim, Germany
| | - E Burmester
- Department of Internal Medicine/Gastroenterology, Municipal Hospital (Sana Kliniken Lübeck GmbH), Lübeck, Germany
| | - A A Bunk
- Surgery, University Hospital Dresden, Germany
| | - M Friedrich-Rust
- Department of Internal Medicine 1, University Hospital Frankfurt, Germany
| | - E Froehlich
- Department of Internal Medicine 1, Municipal Hospital (Karl-Olga-Krankenhaus), Stuttgart, Germany
| | - A Schuler
- Department of Internal Medicine, District Hospital Helfenstein, Geislingen, Germany
| | - C Jenssen
- Department of Internal Medicine, District Hospital (Krankenhaus Märkisch Oderland GmbH), Wriezen, Germany
| | - W Bohle
- Department of Medicine and Gastroenterology, Municipal Hospital (Katharinen), Stuttgart, Germany
| | - M Mauch
- Innere Medicine, District Hospital (SRH Kliniken Sigmaringen), Sigmaringen, Germany
| | - K Dirks
- Department of Interal Medicine and Gastroenterology, District Hospital Rems-Murr, Winnenden, Germany
| | - J Kaemmer
- Depatment of Internal Medicine, Hospital St Hedwig, Berlin, Germany
| | - C Pachmann
- Department of Internal Medicine, Israeli Hospital, Hamburg, Germany
| | - J Stock
- Gastroenterology, Hospital Vivantes Humboldt, Berlin, Germany
| | - M Hocke
- Department of Medicine 2 and Gastroenterology, District Hospital Helios Meiningen, Germany
| | - A Kendel
- Department of Internal Medicine, District Hospital Gummersbach, Germany
| | - C Schmidt
- Department of Internal Medicine, Hospital Albertinen, Hamburg, Germany
| | - C Jakobeit
- Gastroenterology, St. Josefs Hospital (Helios), Bochum, Germany
| | - H Kinkel
- Department of Internal Medicine 2, Municipal Hosital Düren, Germany
| | - W Heinz
- Department of Internal Medicine, Hospital Leonberg, Germany
| | - G Hübner
- Department of Internal Medicine, District Hospital Köthen, Germany
| | - M Pichler
- Campus Innenstadt Gastroenterology, University Hospital Munich, Germany
| | - T Müller
- Department of Internal Medicine 1, Municipal Hospital Steinenberg, Reutlingen, Germany
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Froehlich E, Mandeville JS, Arnold D, Kreplak L, Tajmir-Riahi HA. Effect of PEG and mPEG-Anthracene on tRNA Aggregation and Particle Formation. Biomacromolecules 2011; 13:282-7. [DOI: 10.1021/bm2016515] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- E. Froehlich
- Department of Chemistry-Biology, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières (Québec), Canada G9A 5H7
| | - J. S. Mandeville
- Department of Chemistry-Biology, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières (Québec), Canada G9A 5H7
| | - D. Arnold
- Department of Physics, Sir James
Dunn Building, Dalhousie University, Lord
Dalhousie Drive, Halifax, Canada NS B3H 3J5
| | - L. Kreplak
- Department of Physics, Sir James
Dunn Building, Dalhousie University, Lord
Dalhousie Drive, Halifax, Canada NS B3H 3J5
| | - H. A. Tajmir-Riahi
- Department of Chemistry-Biology, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières (Québec), Canada G9A 5H7
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Froehlich E, Mandeville JS, Arnold D, Kreplak L, Tajmir-Riahi HA. PEG and mPEG–Anthracene Induce DNA Condensation and Particle Formation. J Phys Chem B 2011; 115:9873-9. [DOI: 10.1021/jp205079u] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- E. Froehlich
- Department of Chemistry-Biology, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières (Québec), Canada G9A 5H7
| | - J. S. Mandeville
- Department of Chemistry-Biology, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières (Québec), Canada G9A 5H7
| | - D. Arnold
- Department of Physics, Sir James Dunn Building, Dalhousie University, Lord Dalhousie Drive, Halifax, Canada NS B3H 3J5
| | - L. Kreplak
- Department of Physics, Sir James Dunn Building, Dalhousie University, Lord Dalhousie Drive, Halifax, Canada NS B3H 3J5
| | - H. A. Tajmir-Riahi
- Department of Chemistry-Biology, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières (Québec), Canada G9A 5H7
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Froehlich E, Mandeville JS, Weinert CM, Kreplak L, Tajmir-Riahi HA. Bundling and Aggregation of DNA by Cationic Dendrimers. Biomacromolecules 2010; 12:511-7. [DOI: 10.1021/bm1013102] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- E. Froehlich
- Department of Chemistry-Biology, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières (Québec), Canada G9A 5H7, and Department of Physics, Sir James Dunn Building, Dalhousie University Lord Dalhousie Drive, Halifax, Canada NS B3H 3J5
| | - J. S. Mandeville
- Department of Chemistry-Biology, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières (Québec), Canada G9A 5H7, and Department of Physics, Sir James Dunn Building, Dalhousie University Lord Dalhousie Drive, Halifax, Canada NS B3H 3J5
| | - C. M. Weinert
- Department of Chemistry-Biology, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières (Québec), Canada G9A 5H7, and Department of Physics, Sir James Dunn Building, Dalhousie University Lord Dalhousie Drive, Halifax, Canada NS B3H 3J5
| | - L. Kreplak
- Department of Chemistry-Biology, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières (Québec), Canada G9A 5H7, and Department of Physics, Sir James Dunn Building, Dalhousie University Lord Dalhousie Drive, Halifax, Canada NS B3H 3J5
| | - H. A. Tajmir-Riahi
- Department of Chemistry-Biology, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières (Québec), Canada G9A 5H7, and Department of Physics, Sir James Dunn Building, Dalhousie University Lord Dalhousie Drive, Halifax, Canada NS B3H 3J5
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Mischinger J, Froehlich E, Griesbacher A, Pummer K, Mannweiler S, Zigeuner R, Lipsky K. Prognostic relevance of B7H1 and B7H3 protein expressions in metastatic clear cell renal cell carcinoma. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e15074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Affiliation(s)
- E. Froehlich
- Département de Chimie-Biologie, Université du Québec à Trois-Rivières, C. P. 500, Trois-Rivières (Québec), G9A 5H7, Canada, and Department of Chemistry, Missouri State University, Springfield, Missouri 65897
| | - J. S. Mandeville
- Département de Chimie-Biologie, Université du Québec à Trois-Rivières, C. P. 500, Trois-Rivières (Québec), G9A 5H7, Canada, and Department of Chemistry, Missouri State University, Springfield, Missouri 65897
| | - C. J. Jennings
- Département de Chimie-Biologie, Université du Québec à Trois-Rivières, C. P. 500, Trois-Rivières (Québec), G9A 5H7, Canada, and Department of Chemistry, Missouri State University, Springfield, Missouri 65897
| | - R. Sedaghat-Herati
- Département de Chimie-Biologie, Université du Québec à Trois-Rivières, C. P. 500, Trois-Rivières (Québec), G9A 5H7, Canada, and Department of Chemistry, Missouri State University, Springfield, Missouri 65897
| | - H. A. Tajmir-Riahi
- Département de Chimie-Biologie, Université du Québec à Trois-Rivières, C. P. 500, Trois-Rivières (Québec), G9A 5H7, Canada, and Department of Chemistry, Missouri State University, Springfield, Missouri 65897
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Krinke G, Froehlich E, Herrmann M, Schnider K, Da Silva F, Suter J, Traber K. Adjustment of the myelin sheath to axonal atrophy in the rat spinal root by the formation of infolded myelin loops. Acta Anat (Basel) 1988; 131:182-7. [PMID: 3376720 DOI: 10.1159/000146510] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Atrophy of the L4 dorsal and ventral spinal roots was experimentally induced by unilateral sciatic neurectomy in groups of young (2 and 4 months) and older (12 months) albino rats. During the 4 months following neurectomy, the occurrence of infolded myelin loops (IMLs) was quantitatively examined in transverse sections prepared using perfusion fixation with glutaraldehyde and embedding in epoxy resin. The number of IMLs was higher on the operated side and increased with the time of survival and the age of the animals. The formation of IMLs is a characteristic early response of a large-caliber myelin sheath to axonal atrophy, probably reflecting the presence of redundant myelin.
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Affiliation(s)
- G Krinke
- Ciba-Geigy AG, Basel, Switzerland
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Zakova N, Zak F, Froehlich E, Hess R. Evaluation of skin carcinogenicity of technical 2,2-bis-(p-glycidyloxyphenyl)-propane in CF1 mice. Food Chem Toxicol 1985; 23:1081-9. [PMID: 4076938 DOI: 10.1016/0278-6915(85)90056-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The carcinogenic potential of a technical-grade epoxy resin, Araldite GY 250, of which the diglycidyl ether of bisphenol A (DGEBPA) is the main component, was investigated in CF1 mice. Groups of 50 male and 50 female mice were treated for 2 yr by repeated epidermal application of a 1 or 10% (v/v) solution in acetone. The controls, 50 mice of each sex, were treated with acetone alone. The treatment had no effect on survival and no excess incidence of skin tumours occurred. A positive control group of 50 male and 50 female CF1 mice was treated by epidermal application of 2% (v/v) beta-propiolactone in acetone. In this group there was a high incidence of malignant skin tumours at the site of application and, consequently, increased mortality. Treatment with neither DGEBPA technical nor beta-propiolactone induced systemic neoplasia.
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Lorant IS, Froehlich E. Über die Wirkung von Intravenösen Zuckerinjektionen auf die Ketonurie bei Diabetes Mellitus und bei Diabetischem Koma. J Mol Med (Berl) 1930. [DOI: 10.1007/bf01724353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Froehlich E. Zur Begutachtung unfallverletzter Rentenempfänger auf Grund der Kriegserfahrungen. Dtsch Med Wochenschr 1916. [DOI: 10.1055/s-0028-1135360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Froehlich E. Ueber Gynoval, ein neues Baldrianpräparat. Dtsch Med Wochenschr 1909. [DOI: 10.1055/s-0029-1201708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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