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Lee PJ, Lahooti A, Culp S, Boutsicaris A, Holovach P, Wozniak K, Lahooti I, Paragomi P, Hinton A, Pothoulakis I, Talukdar R, Kochhar R, Goenka MK, Gulla A, Gonzalez JA, Singh V, Bogado MF, Stevens T, Babu ST, Nawaz H, Gutierrez SC, Zarnescu N, Capurso G, Easler J, Triantafyllou K, Peláez Luna M, Thakkar S, Ocampo C, de-Madaria E, Cote GA, Wu BU, Hart PA, Krishna SG, Lara L, Han S, Papachristou GI. Obesity and alcoholic etiology as risk factors for multisystem organ failure in acute pancreatitis: Multinational study. United European Gastroenterol J 2023; 11:383-391. [PMID: 37096304 PMCID: PMC10165322 DOI: 10.1002/ueg2.12390] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 03/28/2023] [Indexed: 04/26/2023] Open
Abstract
BACKGROUND Multisystem organ failure (MSOF) is the most important determinant of mortality in acute pancreatitis (AP). Obesity and alcoholic etiology have been examined as potential risk factors for MSOF, but prior studies have not adequately elucidated their independent effects on the risk of MSOF. OBJECTIVE We aimed to determine the adjusted effects of body mass index (BMI) and alcoholic etiology on the risk of MSOF in subjects with AP. METHODS A prospective observational study of 22 centers from 10 countries was conducted. Patients admitted to an APPRENTICE consortium center with AP between August 2015 and January 2018 were enrolled. Multivariable logistic regression was used to estimate the adjusted effects of BMI, etiology, and other relevant covariates on the risk of MSOF. Models were stratified by sex. RESULTS Among 1544 AP subjects, there was a sex-dependent association between BMI and the risk of MSOF. Increasing BMI was associated with increased odds of MSOF in males (OR 1.10, 95% confidence interval [CI] 1.04-1.15) but not in females (OR 0.98, 95% CI 0.90-1.1). Male subjects with AP, whose BMIs were 30-34 and >35 kg/m2 , had odds ratios of 3.78 (95% CI 1.62-8.83) and 3.44 (95% CI 1.08-9.99), respectively. In females, neither higher grades of obesity nor increasing age increased the risk of MSOF. Alcoholic etiology was independently associated with increased odds of MSOF compared with non-alcohol etiologies (OR 4.17, 95% CI 2.16-8.05). CONCLUSION Patients with alcoholic etiology and obese men (but not women) are at substantially increased risk of MSOF in AP.
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Affiliation(s)
- Peter J Lee
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Ali Lahooti
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
- Weill Cornell Medicine, New York, New York, USA
| | - Stacey Culp
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Andrew Boutsicaris
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Phillip Holovach
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Kayla Wozniak
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Ila Lahooti
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Pedram Paragomi
- University of Pittsburgh Medical Center, Pennsylvania, Pittsburgh, USA
| | | | | | | | - Rakesh Kochhar
- Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | - Aiste Gulla
- Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | | | - Vikesh Singh
- Division of Gastroenterology, John Hopkins Medical Institution, Baltimore, Maryland, USA
| | | | | | - Sorin Traian Babu
- University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
| | - Haq Nawaz
- Northern Light Eastern Maine Medical Center, Bangor, Maine, USA
| | | | - Narcis Zarnescu
- Department of Gastroenterology, "Carol Davila" University of Medicine and Pharmacy, University Emergency Hospital Bucharest, Bucharest, Romania
| | - Gabriele Capurso
- Department of Pancreato-Biliary Endoscopy and Endosonography, San Raffaele Scientific Institute, Vita Salute San Raffaele University, Milan, Italy
| | - Jeffrey Easler
- Division of Gastroenterology, Department of Gastroenterology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | | | - Mario Peláez Luna
- Department of Gastroenterology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán-Universidad-Autónoma de Mexico, Mexico City, Mexico
| | - Shyam Thakkar
- Division of Gastroenterology, West Virginia University, Morgantown, West Virginia, USA
| | - Carlos Ocampo
- Hospital General de Argudos "Dr. Cosme Argerich", Buenos Aires, Argentina
| | - Enrique de-Madaria
- Hospital General Universitario de Alicante, Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL - Fundación FISABIO), Alicante, Spain
| | - Gregory A Cote
- Oregon Health & Science University, Portland, Oregon, USA
| | | | - Phil A Hart
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Somashekar G Krishna
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Luis Lara
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Samuel Han
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Georgios I Papachristou
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
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Chodkiewicz M, Gajda R, Wozniak K. Accurate crystal structure of Ice VI from X-ray diffraction with HAR. Acta Cryst Sect A 2022. [DOI: 10.1107/s205327332209578x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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3
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Borradori L, Van Beek N, Feliciani C, Tedbirt B, Antiga E, Bergman R, Böckle BC, Caproni M, Caux F, Chandran NS, Cianchini G, Daneshpazhooh M, De D, Didona D, Di Zenzo GM, Dmochowski M, Drenovska K, Ehrchen J, Goebeler M, Groves R, Günther C, Horvath B, Hertl M, Hofmann S, Ioannides D, Itzlinger-Monshi B, Jedličková J, Kowalewski C, Kridin K, Lim YL, Marinovic B, Marzano AV, Mascaro JM, Meijer JM, Murrell D, Patsatsi K, Pincelli C, Prost C, Rappersberger K, Sárdy M, Setterfield J, Shahid M, Sprecher E, Tasanen K, Uzun S, Vassileva S, Vestergaard K, Vorobyev A, Vujic I, Wang G, Wozniak K, Yayli S, Zambruno G, Zillikens D, Schmidt E, Joly P. Updated S2 K guidelines for the management of bullous pemphigoid initiated by the European Academy of Dermatology and Venereology (EADV). J Eur Acad Dermatol Venereol 2022; 36:1689-1704. [PMID: 35766904 DOI: 10.1111/jdv.18220] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 05/04/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Bullous pemphigoid (BP) is the most common autoimmune subepidermal blistering disease of the skin and mucous membranes. This disease typically affects the elderly and presents with itch and localized or, most frequently, generalized bullous lesions. A subset of patients only develops excoriations, prurigo-like lesions, and eczematous and/or urticarial erythematous lesions. The disease, which is significantly associated with neurological disorders, has high morbidity and severely impacts the quality of life. OBJECTIVES AND METHODOLOGY The Autoimmune blistering diseases Task Force of the European Academy of Dermatology and Venereology sought to update the guidelines for the management of BP based on new clinical information, and new evidence on diagnostic tools and interventions. The recommendations are either evidence-based or rely on expert opinion. The degree of consent among all task force members was included. RESULTS Treatment depends on the severity of BP and patients' comorbidities. High-potency topical corticosteroids are recommended as the mainstay of treatment whenever possible. Oral prednisone at a dose of 0.5 mg/kg/day is a recommended alternative. In case of contraindications or resistance to corticosteroids, immunosuppressive therapies, such as methotrexate, azathioprine, mycophenolate mofetil or mycophenolate acid, may be recommended. The use of doxycycline and dapsone is controversial. They may be recommended, in particular, in patients with contraindications to oral corticosteroids. B-cell-depleting therapy and intravenous immunoglobulins may be considered in treatment-resistant cases. Omalizumab and dupilumab have recently shown promising results. The final version of the guideline was consented to by several patient organizations. CONCLUSIONS The guidelines for the management of BP were updated. They summarize evidence- and expert-based recommendations useful in clinical practice.
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Affiliation(s)
- L Borradori
- Department of Dermatology, Inselspital, Bern University Hospital, Bern, Switzerland
| | - N Van Beek
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - C Feliciani
- Dermatology Unit, Department of Medicine and Surgery, University Hospital, University of Parma, Italy
| | - B Tedbirt
- Department of Dermatology, Rouen University Hospital, Referral Center for Autoimmune Bullous Diseases, Referral Center for Autoimmune Bullous Diseases, Rouen University Hospital, INSERM U1234, Normandie University, Rouen, France
| | - E Antiga
- Section of Dermatology, Department of Health Sciences, University of Florence, Florence, Italy
| | - R Bergman
- Department of Dermatology, Rambam Health Care Campus, Haifa, Israel.,Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - B C Böckle
- Department of Dermatology, Venereology & Allergology, Innsbruck Medical University, Innsbruck, Austria
| | - M Caproni
- Department of Health Sciences, Section of Dermatology, AUSL Toscana Centro, Rare Diseases Unit, European Reference Network-Skin Member, University of Florence, Italy
| | - F Caux
- Department of Dermatology and Referral Center for Autoimmune Bullous Diseases, Groupe Hospitalier Paris Seine-Saint-Denis, AP-HP and University Paris 13, Bobigny, France
| | - N S Chandran
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - G Cianchini
- Department of Dermatology, Ospedale Classificato Cristo Re, Rome, Italy
| | - M Daneshpazhooh
- Department of Dermatology, Autoimmune Bullous Diseases Research Center, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - D De
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - D Didona
- Department of Dermatology and Allergology, Philipps University, Marburg, Germany
| | - G M Di Zenzo
- Laboratory of Molecular and Cell Biology, Istituto Dermopatico dell'Immacolata, IDI-IRCCS, Rome, Italy
| | - M Dmochowski
- Autoimmune Blistering Dermatoses Section, Department of Dermatology, Poznan University of Medical Sciences, Poznan, Poland
| | - K Drenovska
- Department of Dermatology, Medical University of Sofia, Sofia, Bulgaria
| | - J Ehrchen
- Department of Dermatology, University of Münster, Münster, Germany
| | - M Goebeler
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - R Groves
- St. John's Institute of Dermatology, Viapath Analytics LLP, St. Thomas' Hospital, London, UK.,Division of Genetics and Molecular Medicine, King's College London, Guy's Hospital, London, UK
| | - C Günther
- Department of Dermatology, Carl Gustav Carus University Hospital, Technische Universität Dresden, Dresden, Germany
| | - B Horvath
- Department of Dermatology, Center for Blistering Diseases, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - M Hertl
- Department of Dermatology and Allergology, Philipps University, Marburg, Germany
| | - S Hofmann
- Department of Dermatology, Allergy and Dermatosurgery, Helios University Hospital Wuppertal, University Witten, Herdecke, Germany
| | - D Ioannides
- 1st Department of Dermatology-Venereology, Hospital of Skin and Venereal Diseases, Aristotle University Medical School, Thessaloniki, Greece
| | - B Itzlinger-Monshi
- Department of Dermatology, Venereology and Allergy, Clinical Center Landstrasse, Academic Teaching Hospital of the Medical University of Vienna, Vienna, Austria.,Medical Faculty, The Sigmund Freud Private University, Vienna, Austria
| | - J Jedličková
- Department of Dermatovenereology, Masaryk University, University Hospital St. Anna, Brno.,Department of Dermatovenereology, University Hospital Brno, Brno, Czech Republic
| | - C Kowalewski
- Department Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
| | - K Kridin
- National Skin Centre, Singapore, Singapore
| | - Y L Lim
- Department of Dermatology and Venereology, School of Medicine, University Hospital Centre Zagreb, University of Zagreb, Zagreb, Croatia
| | - B Marinovic
- Dermatology Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - A V Marzano
- Dermatology Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - J-M Mascaro
- Department of Dermatology, Hospital Clínic de Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - J M Meijer
- Department of Dermatology, Center for Blistering Diseases, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - D Murrell
- Department of Dermatology, St George Hospital, University of New South Wales, Sydney, New South Wales, Australia
| | - K Patsatsi
- 2nd Department of Dermatology, Autoimmune Bullous Diseases Unit, Aristotle University School of Medicine, Papageorgiou General Hospital, Thessaloniki, Greece
| | - C Pincelli
- DermoLab, Institute of Dermatology, University of Modena and Reggio Emilia, Modena, Italy
| | - C Prost
- Department of Dermatology and Referral Center for Autoimmune Bullous Diseases, Groupe Hospitalier Paris Seine-Saint-Denis, AP-HP and University Paris 13, Bobigny, France
| | - K Rappersberger
- Department of Dermatology, Venereology and Allergy, Clinical Center Landstrasse, Academic Teaching Hospital of the Medical University of Vienna, Vienna, Austria.,Medical Faculty, The Sigmund Freud Private University, Vienna, Austria.,Abteilung Dermatologie, Venerologie und Allergologie, Lehrkrankenhaus der Medizinischen Universität Wien, Austria
| | - M Sárdy
- Department of Dermatology and Allergology, Ludwig Maximilian University, Munich, Germany.,Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, Budapest, Hungary
| | - J Setterfield
- Department of Oral Medicine, St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - M Shahid
- Department of Dermatology, Medical University, Sofia, Bulgaria
| | - E Sprecher
- Division of Dermatology, Tel Aviv Sourasky Medical Center and Department of Human Molecular Genetics & Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - K Tasanen
- Department of Dermatology, the PEDEGO Research Unit, University of Oulu and Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
| | - S Uzun
- Department of Dermatology and Venereology, Akdeniz University Faculty of Medicine, Antalya, Turkey
| | - S Vassileva
- Department of Dermatology, Medical University, Sofia, Bulgaria
| | - K Vestergaard
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | - A Vorobyev
- Department of Dermatology, University of Lübeck, Lübeck, Germany.,Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
| | - I Vujic
- Department of Dermatology, Venereology and Allergy, Clinical Center Landstrasse, Academic Teaching Hospital of the Medical University of Vienna, Vienna, Austria.,Medical Faculty, The Sigmund Freud Private University, Vienna, Austria
| | - G Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - K Wozniak
- National Skin Centre, Singapore, Singapore
| | - S Yayli
- Department of Dermatology, School of Medicine, Koç University, Istanbul, Turkey
| | - G Zambruno
- Genetics and Rare Diseases Research Division, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - D Zillikens
- Department of Dermatology, University of Lübeck, Lübeck, Germany.,Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
| | - E Schmidt
- Department of Dermatology, University of Lübeck, Lübeck, Germany.,Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - P Joly
- Department of Dermatology, Rouen University Hospital, Referral Center for Autoimmune Bullous Diseases, Referral Center for Autoimmune Bullous Diseases, Rouen University Hospital, INSERM U1234, Normandie University, Rouen, France
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Schiewe MC, Emeny-Smith K, Nugent N, Zozula S, Wozniak K, Zeffiro C, Baer E, Lee T, Hatch I, Anderson R. P–758 The efficacy, safety and proven security of microSecure vitrification offers “peace of mind” and reliability during a global pandemic. Hum Reprod 2021. [PMCID: PMC8385890 DOI: 10.1093/humrep/deab130.757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Study question Under deadly pandemic conditions involving the novel SARS-CoV–2 corona virus, could biopsied blastocysts be safely cryopreserved, stored and utilized for subsequent warming cycles? Summary answer Blastocysts were securely stored, effectively warmed and safely transferred to yield normal pregnancy outcomes under uncertain laboratory conditions subject to unprecedented policy changes. What is known already By April 2020, every IVF lab worldwide was implementing deep cleaning/disinfecting procedures in their laboratory and patient-contact areas, thorough hand-washing policies and mandatory PPE to reduce the chance of contact transmission and spread of the potentially deadly SARS-CoV–2 coronavirus. Furthermore, we know that safeguards like oil overlay culture dishes and pipetting dilution factors provide insurance against possible contamination. However, knowing that the trophectoderm of blastocysts possessed the ACE–2 binding receptor, potential concern existed regarding the continuation of laser zona opening and biopsy procedures that could possibly expose cryopreserved embryos to the coronavirus in liquid nitrogen storage (vapor or liquid). Study design, size, duration Between March 8 and December 22, 2020, 508 patients performed FET cycles involving the use of single (n = 490) or dual (n = 18) euploid microSecure vitrified blastocysts. In this retrospective analysis, we compared clinical pregnancy outcomes to a 5 year dataset (2015–2019) encompassing 2768 single and 272 dual embryo transfer FET cycles. All blastocysts were vitrified using a closed microSecure system and Innovative Cryoenterprise (ICE; NJ, USA) non-DMSO, glycerol-EG solutions. Differences were assessed by Chi-square analysis (p < 0.05). Participants/materials, setting, methods Deep cleaning was performed with Simple Green Pro3+ Virucide in non-lab areas (e.g., ET rooms, waiting room) and 6% H2O2 & OoSafe solutions to disinfect lab surfaces and equipment. Group embryo cultures were performed in MCO–5M humidified incubators under low oxygen tri-gas conditions with varying CO2 levels (5.3–6.0%; pH = 7.3–7.35) using 25µl droplets of LifeGlobal medium+7.5%LGPS+1%sodium hyaluronate, before changing to 10µl droplet/GPS dishes post-biopsy. FET cycles involved 4-step sucrose dilutions and transvaginal ultrasound-guided embryo transfers. Main results and the role of chance While ICSI fertilization rates were unchanged in 2020 (79.4% 2PN vs 77.3%), blastocyst utilization rates tended to be slightly lower than past years (56.4% vs 59.9%) but within an acceptable range. Of 529 blastocysts warmed, 527 (99.7%) survived completely for transfer, being comparable to the 99.4% experienced over 5 years. Furthermore, there was no differences detected in single embryo transfer pregnancy outcomes. The implantation and ongoing clinical pregnancy/live birth rates were 69% and 66.53% compared to 70.4% and 65.1%, respectively. Under pandemic conditions we did not observe an increase in biochemical pregnancies (10.3%) nor spontaneous miscarriage rates (7.8%). Although it is possible that our rigorous disinfection practices could have attributed to lower blastocyst production, the viability of those embryos was not compromised. Importantly, we were able to feel comfortable performing micromanipulation and cryopreservation procedures throughout the year knowing that we were effectively eliminating possible vertical transmission of coronavirus to an exposed trophectoderm layer in cryostorage by applying mircoSecure vitrification. Post-FET clinical check-ups revealed no patient reporting any fever or other Covid–19 symptoms in the weeks following their transfers. We are fortunate to say that our Lab staff, physicians and patients have remained healthy throughout 2020. Limitations, reasons for caution Blastocyst survival and viability are independent of possible viral exposure. Previously, the risk of disease transmission via liquid nitrogen or vapor exposure was considered highly unlikely (Pomeroy et al., 2010), but that was at a time when embryos were primarily zona-enclosed. Today’s ART standards have us re-evaluating safer approaches. Wider implications of the findings: We have effectively mitigated avoiding performing zona opening procedures by employing our standard practice of aseptic, closed vitrification. In combination with standard preventative measures (PPE, hand hygiene, distance awareness) and routine deep cleaning practices, we sustained a contamination-free environment and healthy patients, capable of sustaining high levels of pregnancy success. Trial registration number Not applicable
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Affiliation(s)
| | | | - N Nugent
- Ovation Fertility, Lab, Newport Beach, USA
| | - S Zozula
- Ovation Fertility, Lab, Newport Beach, USA
| | - K Wozniak
- Ovation Fertility, Lab, Newport Beach, USA
| | - C Zeffiro
- Ovation Fertility, Lab, Newport Beach, USA
| | - E Baer
- Ovation Fertility, Lab, Newport Beach, USA
| | - T Lee
- FCARE, Fertility Clinic, Brea, USA
| | - I Hatch
- FCSC, Fertility Clinic, Irvine, USA
| | - R Anderson
- SCCRM, Fertility Clinic, Newport Beach, USA
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Osmola M, Waszczuk-Gajda A, Gierej B, Kraj L, Wozniak K, Ziarkiewicz-Wróblewska B, Basak G. 1561P Anemia and iron deficiency (ID) in association with tissue iron regulators - Hepcidin, ferroportin and ZIP14 expression in patients with pancreatic cancer (PC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2044] [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: 11/26/2022] Open
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Joly P, Horvath B, Patsatsi Α, Uzun S, Bech R, Beissert S, Bergman R, Bernard P, Borradori L, Caproni M, Caux F, Cianchini G, Daneshpazhooh M, De D, Dmochowski M, Drenovska K, Ehrchen J, Feliciani C, Goebeler M, Groves R, Guenther C, Hofmann S, Ioannides D, Kowalewski C, Ludwig R, Lim Y, Marinovic B, Marzano A, Mascaró J, Mimouni D, Murrell D, Pincelli C, Squarcioni C, Sárdy M, Setterfield J, Sprecher E, Vassileva S, Wozniak K, Yayli S, Zambruno G, Zillikens D, Hertl M, Schmidt E. Updated S2K guidelines on the management of pemphigus vulgaris and foliaceus initiated by the european academy of dermatology and venereology (EADV). J Eur Acad Dermatol Venereol 2020; 34:1900-1913. [DOI: 10.1111/jdv.16752] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 05/29/2020] [Indexed: 01/21/2023]
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Bialik P, Wysokinski D, Slomka M, Morawiec Z, Strapagiel D, Wozniak K. HRM screening of the UBC9 gene encoding the SUMO-E2-conjugating enzyme - case-control study in breast cancer. Exp Oncol 2020; 42:130-134. [PMID: 32602284 DOI: 10.32471/exp-oncology.2312-8852.vol-42-no-2.14739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
AIM UBC9 (E2) small ubiquitin-like modifier conjugating enzyme plays a key role in the post-translational modification of proteins named sumoylation. Defects in small ubiquitin-like modifier modification may contribute to breast carcinogenesis. In the present work, we examined UBC9 genetic variation. MATERIALS AND METHODS UBC9 genetic variation was analyzed by using the high resolution melting (HRM) method. HRM study was conducted on 173-182 healthy women and 188-190 women with breast cancer. RESULTS During HRM screening, we analysed three known single-nucleotide polymorphisms in introns: rs4984806, rs909916 and rs909917, and one known single nucleotide polymorphism rs8063 in exon 7, in a non-coding region. The genotype frequencies for all polymorphisms were in accordance with Hardy - Weinberg equilibrium among the control subjects and breast cancer patients. The linkage disequilibrium analysis displayed that there was one polymorphism block, which consisted of three single nucleotide polymorphisms: rs909916, rs909917 and rs4984806. We identified two common haplotypes CCG and TTC, but we did not find significant differences in the distribution of these haplotypes between cases and controls. CONCLUSION Our study showed no differences in the occurrence of indicated polymorphisms in the UBC9 gene in a group of healthy women compared to women with breast cancer. These results suggest that the polymorphisms of the UBC9 gene - rs4984806, rs909916, rs909917 and rs8063 can be not associated with breast cancer risk.
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Affiliation(s)
- P Bialik
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Molecular Genetics, 90-236 Lodz, Poland
| | - D Wysokinski
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Molecular Genetics, 90-236 Lodz, Poland
| | - M Slomka
- University of Lodz, Faculty of Biology and Environmental Protection, Biobank Lab., Department of Molecular Biophysics, 90-236 Lodz, Poland
| | - Z Morawiec
- Department of Surgical Oncology, N. Copernicus Hospital, 93-513 Lodz, Poland
| | - D Strapagiel
- University of Lodz, Faculty of Biology and Environmental Protection, Biobank Lab., Department of Molecular Biophysics, 90-236 Lodz, Poland
| | - K Wozniak
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Molecular Genetics, 90-236 Lodz, Poland
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Kalinska-Bienias A, Piotrowski T, Kowalczyk E, Lesniewska A, Kaminska M, Jagielski P, Kowalewski C, Wozniak K. Actigraphy-measured nocturnal wrist movements and assessment of sleep quality in patients with bullous pemphigoid: a pilot case-control study. Clin Exp Dermatol 2019; 44:759-765. [PMID: 30652344 DOI: 10.1111/ced.13902] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/15/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Bullous pemphigoid (BP) is a distressing autoimmune bullous disease strongly associated with severe pruritus; however, data concerning pruritus in BP are still scarce. No clinical research evaluating the effect of BP on sleep quality has been conducted. AIM To evaluate the intensity of pruritus measured by nocturnal wrist movements (NWMs) and the sleep quality in patients with BP using actigraphy in comparison with nonpruritic healthy controls (HCs) with subsequent correlations with an itch visual analogue scale (VAS) as a subjective measure, disease severity [Bullous Pemphigoid Disease Area Index (BPDAI), urticaria/erythema, erosions/blisters] and serum total IgE level. METHODS In total, 31 patients with newly diagnosed BP (mean ± SD age 75.4 ± 12.3 years) and 40 nonpruritic HCs (age 73.5 ± 11.7 years) were recruited. All participants wore a sleep monitor (ActiSleep+) on the dominant wrist. RESULTS For patients with BP, median VAS score was 5.5 and median BPDAI was 43 (urticaria/erythema BPDAI was 16, erosions/blisters BPDAI was 29). Scratching, defined as bouts of NWMs, was significantly (P < 0.001) more intensive in patients with BP than in controls. Characteristic of BP was that scratching bouts corresponded with the slowest wrist movements. There were no correlations with VAS, BPDAI or total IgE level. Compared with HCs, patients with BP presented significant (P < 0.001) sleep disturbances, as determined by sleep efficiency, waking after sleep onset and average duration of awakening, and these were strongly correlated with urticaria/erythema BPDAI. CONCLUSION Nocturnal wrist movements measured by actigraphy are more intensive in patients with BP than in nonpruritic HCs, and characteristically slow movements. Actigraphy method showed very low sleep quality in patients with BP, thus severity of BP has a negative impact on sleep.
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Affiliation(s)
- A Kalinska-Bienias
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
| | - T Piotrowski
- Department of Psychiatry, Medical University of Warsaw, Warsaw, Poland
| | - E Kowalczyk
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
| | - A Lesniewska
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
| | - M Kaminska
- Department of Dermatology and Venerology, Medical University of Warsaw, Warsaw, Poland
| | - P Jagielski
- Human Nutrition Department, Faculty of Health Science, Jagiellonian University Medical College, Krakow, Poland
| | - C Kowalewski
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
| | - K Wozniak
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
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Wertheim-Tysarowska K, Sniegorska D, Grabarczyk A, Ruszkowska L, Kutkowska-Kazmierczak A, Sawicka J, Radomska S, Wozniak K, Kowalewski C, Bal J. 219 Molecular diagnostics of ichthyoses using genodermatoses-dedicated next generation sequencing panel in polish patients. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.216] [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: 10/18/2022]
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10
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Kurpaska L, Gapinska M, Jasinski J, Lesniak M, Sitarz M, Nowakowska-Langier K, Jagielski J, Wozniak K. Influence of Ar-irradiation on structural and nanomechanical properties of pure zirconium measured by means of GIXRD and nanoindentation techniques. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.03.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Ames T, Slusher B, Wozniak K, Takase Y, Shimizu H, Nishibata-Kobayashi K, Kanada-Sonobe R, Kerns W, Fong K, Pourquier P, Gongora C, Jimeno J, Chatterjee D. Findings across pre-clinical models in the development of PT-112, a novel investigational platinum-pyrophosphate anti-cancer agent. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)33054-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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12
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Kowalewski C, Bremer J, Gostynski A, Wertheim‐Tysarowska K, Wozniak K, Bal J, Jonkman M, Pasmooij A. Amelioration of junctional epidermolysis bullosa due to exon skipping. Br J Dermatol 2016; 174:1375-1379. [DOI: 10.1111/bjd.14374] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2015] [Indexed: 11/29/2022]
Affiliation(s)
- C. Kowalewski
- Department of Dermatology and Immunodermatology Medical University of Warsaw Warsaw Poland
| | - J. Bremer
- Department of Dermatology Center for Blistering Diseases University of Groningen University Medical Center Groningen Groningen the Netherlands
| | - A. Gostynski
- Department of Dermatology Center for Blistering Diseases University of Groningen University Medical Center Groningen Groningen the Netherlands
| | | | - K. Wozniak
- Department of Dermatology and Immunodermatology Medical University of Warsaw Warsaw Poland
| | - J. Bal
- Department of Medical Genetics Institute of Mother and Child Warsaw Poland
| | - M.F. Jonkman
- Department of Dermatology Center for Blistering Diseases University of Groningen University Medical Center Groningen Groningen the Netherlands
| | - A.M.G. Pasmooij
- Department of Dermatology Center for Blistering Diseases University of Groningen University Medical Center Groningen Groningen the Netherlands
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Kalinska-Bienias A, Kalowska M, Kwiek B, Jakubowska B, Ishii N, Hashimoto T, Kowalewski C, Wozniak K. Efficacy and safety of perilesional/intralesional triamcinolone injections in oral mucous membrane pemphigoid. Br J Dermatol 2015. [DOI: 10.1111/bjd.14043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- A. Kalinska-Bienias
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
| | - M. Kalowska
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
| | - B. Kwiek
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
| | - B. Jakubowska
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
| | - N. Ishii
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; Kurume Japan
| | - T. Hashimoto
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; Kurume Japan
| | - C. Kowalewski
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
| | - K. Wozniak
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
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Sommer F, Wozniak K. [Lid reconstruction for large lower eyelid defects (extending into canthus) with Hughes flap and skin graft - possibilities and limitations]. Klin Monbl Augenheilkd 2014; 232:21-6. [PMID: 25275792 DOI: 10.1055/s-0034-1383015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
PURPOSE The aim of lid reconstruction is restoration of function, comfort and cosmesis. Large defects of the lower eyelid especially with extension into the canthus are a surgical challenge. A Hughes flap combined with a skin graft is a good option not only for central defects of the lower eyelid. METHODS This article presents the surgical outcome in a series of 45 patients with large full-thickness lower eyelid defects partially extended into the canthus after tumour excision. These patients underwent reconstructive eyelid surgery using a Hughes flap, autogenous skin graft, partially combined with other surgical techniques. RESULTS after division, possibilities and limitations are shown in this article. The analysis was based on photo documentation, surgery reports and patient statements. In all cases surgery was performed by the same surgeon. RESULTS 45 patients were identified during a 3-year interval. The average age at the time of eyelid reconstruction was 70.6 years (range 38-94 years). Lid defects extending into the canthus were observed in 20 patients (9 inner/11 outer canthal region). The average size of lid defect was 17 mm and ranged from 9 to 28 mm horizontally. 26 patients showed defects ≥ 15 mm; 16 of them were identified with an extension into the canthus (8 inner/8 outer). Flap complications occurred in 14 patients after flap division; 8 with primary canthal involvement. After Hughes procedure, flap division and correction of complications (epilation, debulking, resuturing) 44 patients showed a very good lower lid position with good functional and cosmetic results. Due to incomplete lid closure 1 patient developed severe complications of corneal surface. Follow-up time ranged from 5 to 10 months (on average 6 months). In 6 patients the Hughes procedure was combined with other reconstructive techniques. CONCLUSIONS In cases of large lower lid defects (even with extension into the canthus) the Hughes flap combined with skin graft and other reconstructive procedures leads to a well tightened lid position, shows a high grade of patient satisfaction although the complete blepharorrhaphy is necessary for 6 weeks and complications occur. For one-eyed patients a one step surgical procedure should be preferred.
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Affiliation(s)
- F Sommer
- Augenklinik, Universitätsklinikum Carl Gustav Carus, TU Dresden
| | - K Wozniak
- Augenklinik, Universitätsklinikum Carl Gustav Carus, TU Dresden
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15
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Wozniak K, Kalinska-Bienias A, Hashimoto T, Kowalewski C. Ultraviolet-induced linear IgA bullous dermatosis: a case report and literature survey. Br J Dermatol 2014; 171:1578-81. [PMID: 24888577 DOI: 10.1111/bjd.13154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K Wozniak
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Koszykowa 82a, 02-008, Warsaw, Warszawa, Poland.
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Abstract
The ankyloblepharon filiforme adnatum is a congenital eyelid anomaly in which the development of the eyelids is completed but the eyelids are not completely separated at birth. The abnormality can occur as an isolated anomaly, together with other eye diseases or in the context of systemic syndromes. In this case report the current classification and essential diagnostics of AFA will be reviewed.
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Affiliation(s)
- M Haustein
- Universitätsaugenklinik Dresden, Klinik und Poliklinik für Augenheilkunde der medizinischen Fakultät "Carl Gustav Carus", TU Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland,
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Malinowska-Jedraszczyk A, Wozniak K. Partial luxation and displacement of tooth during treatment of malocclusion using light-wire fixed appliances - therapeutic procedure. Aust Dent J 2013; 58:256-61. [DOI: 10.1111/adj.12061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 08/13/2012] [Accepted: 08/13/2012] [Indexed: 11/29/2022]
Affiliation(s)
| | - K Wozniak
- Pomeranian Medical University; Department of Orthodontics; Szczecin; Poland
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18
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Wozniak K, Hashimoto T, Ishii N, Koga H, Huczek M, Kowalewski C. Fluorescence overlay antigen mapping using laser scanning confocal microscopy differentiates linear IgA bullous dermatosis from epidermolysis bullosa acquisita mediated by IgA. Br J Dermatol 2013; 168:634-8. [DOI: 10.1111/bjd.12017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Wysokinski D, Blasiak J, Wozniak K. Zinc differentially modulates DNA damage induced by anthracyclines in normal and cancer cells. Exp Oncol 2012; 34:327-331. [PMID: 23302990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
UNLABELLED Zinc is one of the most essential trace elements in human organism. Low blood level of zinc is often noted in acute lymphocytic leukemia (ALL). Treatment with zinc adjuvant is hypothesized to accelerate recovery from ALL, and in conjunction with chemotherapy, cure ALL. AIM We determined the effect of zinc on DNA damage induced by doxorubicin and idarubicin, two anthracyclines used in ALL treatment. METHODS The experiment was performed on acute lymphoblastic leukemia cell line (CCRF-CEM) and lymphocytes from peripheral blood of healthy, adult subjects. To evaluate the level of DNA damage the comet assay in the alkaline version was used. RESULTS We observed a significant difference in DNA damage level between normal and cancer cells in the presence of zinc. Cancer cells exhibited a significant increase of DNA damage in the presence of zinc, while in lymphocytes no such effect was observed. CONCLUSION Our results suggest that zinc may protect normal cells against DNA-damaging action of anthracyclins and increase this action in cancer cells.
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Affiliation(s)
- D Wysokinski
- Department of Molecular Genetics, University of Lodz, Lodz 90-236, Poland
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20
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Wozniak K, Kość K, Robinson SW, Domagala S, Haynes DA. Dithiazyl radicals – structures and charge densities of their crystals and co-crystals. Acta Crystallogr A 2012. [DOI: 10.1107/s0108767312096018] [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: 11/10/2022] Open
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21
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Malinska M, Pribe W, Wozniak K. Experimental charge density analysis of the nature of C—Br...N=C interactions in biologically active compound. Acta Crystallogr A 2012. [DOI: 10.1107/s0108767312098947] [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: 11/10/2022] Open
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22
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Buczkowska-Radlinska J, Szyszka-Sommerfeld L, Wozniak K. Anterior tooth crowding and prevalence of dental caries in children in Szczecin, Poland. Community Dent Health 2012; 29:168-172. [PMID: 22779379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To test the effect of anterior tooth crowding on dental caries in Polish patients with primary, mixed and permanent dentition. BASIC RESEARCH DESIGN Dental examinations based on WHO criteria and questionnaire surveys were performed on 225 children from Poland selected by stratified random sampling. The mean dmft/DMFT scores were recorded for primary, mixed and permanent dentition. Multivariate logistic regression was performed to identify associations between caries prevalence and other possible caries risk factors including crowding. RESULTS The study population had high overall caries prevalence. Both caries prevalence and DMFT in anterior teeth of 15-19 year old adolescents with crowding were higher than in those without crowding. Multivariate analysis showed that the risk factors associated with anterior caries prevalence in patients aged 15-19 years were crowding (OR 3.71) and tooth brushing twice a day or less without interdental cleaning (OR 2.15). CONCLUSIONS Tooth crowding may have been associated with anterior caries experienced in children aged 15-19 years and must be taken into consideration as a caries risk indicator.
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Malinska M, Nowacki J, Kapturkiewicz A, Wozniak K. On differences in electron densities of phenoxazine and phenothiazine derivatives. Acta Crystallogr A 2011. [DOI: 10.1107/s010876731108264x] [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: 11/10/2022] Open
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Abstract
Entropion is an inward folding malposition of the eyelid margin. As a result of persistent entropion and trichiasis severe complications of the conjunctiva and the cornea can occur, which can lead to loss of visual acuity. Conservative forms of therapy mostly provide only a temporary solution and are generally used in preoperative care or if surgical intervention is unfeasible. The main therapeutic means is surgery. Normally congenital entropion recedes throughout the first 12 months of life, so that surgery is not needed immediately. Spastic inflammatory entropion disappears with successful treatment of the inflammation. Senile entropion is caused by three different pathological mechanisms: loss of lid laxity, loss of tension of lower lid retractors and alterations to the musculus orbicularis. These can be corrected with the procedures developed by Wies and also by Quickert and Jones. The surgeon should be careful to avoid an overcorrection with iatrogenic ectropion. Finally, cicatricial entropion can occur as a consequence of persistent inflammation or injuries. In this case free mucosa grafts may be necessary.
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Affiliation(s)
- K Wozniak
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum der TU Dresden, Fetscherstraße 74, 01307, Dresden, Deutschland.
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26
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Siwinska K, Wozniak K, Paras C, Webster M. Local vs. global distortions in face adaptation. J Vis 2010. [DOI: 10.1167/7.15.107] [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: 11/24/2022] Open
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27
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Slusher BS, Rojas C, Sima A, Majer P, Tsukamoto T, Jackson PJ, Dal Canto M, Lu XM, Vomov JJ, Burak E, Rhodes C, Limsakun T, Potter B, Wozniak K. NAALADase (GCP II) inhibition as a novel therapeutic target for neuropathic pain, diabetic neuropathy, and ALS. J Neurochem 2008. [DOI: 10.1046/j.1471-4159.2002.00054.x] [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: 11/20/2022]
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Wozniak K, Piaskowski S, Gresner SM, Golanska E, Bieniek E, Bigoszewska K, Sikorska B, Szybka M, Kulczycka-Wojdala D, Zakrzewska M, Zawlik I, Papierz W, Stawski R, Jaskolski DJ, Och W, Sieruta M, Liberski PP, Rieske P. BCR expression is decreased in meningiomas showing loss of heterozygosity of 22q within a new minimal deletion region. ACTA ACUST UNITED AC 2008; 183:14-20. [PMID: 18474292 DOI: 10.1016/j.cancergencyto.2008.01.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2007] [Revised: 01/14/2008] [Accepted: 01/30/2008] [Indexed: 11/18/2022]
Abstract
Neurofibromin 2 (NF2), located on chromosome arm 22q, has been established as a tumor suppressor gene involved in meningioma pathogenesis. In our study, we investigated 149 meningiomas to determine whether there are additional tumor suppressor genes localized on chromosome 22q, apart from NF2, that might be involved in meningioma pathogenesis. The LOH analysis on chromosome 22q identified two regions of deletion: the first one, which is limited to the NF2 gene locus, and the second one, which is outside this location. The new minimal deletion region (MDR) included the following genes: BCR (breakpoint cluster region), RAB36 (a member of RAS oncogene family), GNAZ [guanine nucleotide binding protein (G protein), alpha-z polypeptide], and RTDR1 (rhabdoid tumor deletion region gene 1). The expression levels of all these genes, including NF2, were subsequently analyzed by quantitative real-time polymerase chain reaction. We observed a significantly lowered expression level of NF2 in meningiomas with 22q loss of heterozygosity (LOH) within NF2 region compared to the one in meningiomas with 22q retention of heterozygosity (ROH, P<0.05). Similarly, BCR showed a significantly lowered expression in meningiomas with 22q LOH within the new MDR compared to cases with 22q ROH (P<0.05). Our data, together with the already published information considering BCR function suggest that BCR can be considered as a candidate tumor suppressor gene localized on chromosome 22q which may be involved in meningioma pathogenesis.
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Affiliation(s)
- K Wozniak
- Department of Molecular Pathology and Neuropathology, Medical University of Lodz, Czechoslowacka 8/10, 92-216 Lodz, Poland
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Carozzi VA, Canta A, Konvalinka J, Slusher B, Wozniak K, Lapidus R, Cavaletti G. Glutamate carboxypeptidase II inhibition IN rat models of chemotherapy-induced peripheral neurotoxicity (CIPN). J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.9558] [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: 11/20/2022] Open
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30
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Smirnov LS, Wozniak K, Dominiak P, Loose A, Natkaniec I, Frontasyeva MV, Pomyakushina EV, Baranov AI, Dolbinina VV. Refinement of the crystal structure of [Rb x (NH4)1−x ]3H(SO4)2(x = 0.11) by single-crystal X-ray and neutron diffraction: I. Phase II at 300 K. CRYSTALLOGR REP+ 2008. [DOI: 10.1134/s1063774508030097] [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: 11/23/2022]
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Wozniak K, Gloc E, Morawiec Z, Blasiak J. Amifostine can differentially modulate DNA double-strand breaks and apoptosis induced by idarubicin in normal and cancer cells. Exp Oncol 2008; 30:22-28. [PMID: 18438337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
UNLABELLED We have previously shown that amifostine differentially modulated the DNA-damaging action of idarubicin in normal and cancer cells and that the presence of p53 protein and oncogenic tyrosine kinases might play a role in this diversity. AIM To investigate further this effect we have studied the influence of amifostine on idarubicin-induced DNA double-strand breaks (DSBs) and apoptosis. METHODS We employed pulse-field gel electrophoresis () for the detection of DSBs and assessment of their repair in human normal lymphocytes and chronic myelogenous leukaemia K562 cells lacking p53 activity and expressing the BCR/ABL tyrosine kinase. Apoptosis was evaluated by caspase-3 activity assay assisted by the alkaline comet assay and DAPI staining. RESULTS Idarubicin induced DSBs in a dose-independent manner in normal and cancer cells. Both types of the cells did not repair these lesions in 120 min and amifostine differentially modulated their level - decreased it in the lymphocytes and increased in K562 cells. In contrast to control cells, amifostine potentated apoptotic DNA fragmentation, chromatin condensation and the activity of caspase-3 in leukaemia cells. CONCLUSION Amifostine can differentially modulate DSBs and apoptosis induced by idarubicin in normal and cancer cells. It can protect normal cells against drug-induced DNA damage and it can potentate the action of the drug in leukaemic cells. Further studies on link between amifostine-induced modulation of DSBs and apoptosis of cancer cells will bring a deeper insight into molecular mechanism of amifostine action.
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Affiliation(s)
- K Wozniak
- Department of Molecular Genetics, University of Lodz, Lodz, Poland
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32
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Heil V, Danzig J, Fastabend A, Meller K, Menne A, Unger CA, Rossow S, Wozniak K, Smit RW. Biogene Altfette als Rohstoffe für Diesel- und Benzinkomponenten durch Pyrokatalyse an Aktivkohlen. CHEM-ING-TECH 2007. [DOI: 10.1002/cite.200750413] [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: 11/06/2022]
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33
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Wozniak K, Kowalewski C, Rosinska-Borkowska D, Ciupinska M. Two patients with localized epidermolysis bullosa acquisita: diagnostic value of laser scanning confocal microscopy. Br J Dermatol 2007; 156:1066-8. [PMID: 17355235 DOI: 10.1111/j.1365-2133.2007.07793.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wozniak K, Köller AU, Spörl E, Böhm AG, Pillunat LE. Augeninnnendruckmessung im Tages- und Nachtverlauf bei Glaukompatienten und Normalprobanden mittels Goldmann- und Perkins-Applanationstonometrie. Klin Monbl Augenheilkd 2007. [DOI: 10.1055/s-2007-992968] [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: 10/21/2022]
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Wozniak K, Pillunat LE. Unklare Visusminderung nach augeninnendrucksenkender operativer Therapie bei Glaukompatienten – Zyklophotokoagulation. Klin Monbl Augenheilkd 2007. [DOI: 10.1055/s-2007-992938] [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: 10/21/2022]
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Wozniak K, Köller AU, Spörl E, Böhm AG, Pillunat LE. Augeninnendruckmessungen im Tages- und Nachtverlauf bei Glaukompatienten und Normalprobanden mittels Goldmann- und Perkins-Applanationstonometrie. Ophthalmologe 2006; 103:1027-31. [PMID: 17048019 DOI: 10.1007/s00347-006-1407-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Our aim was to evaluate intraocular pressure (IOP) levels in primary open angle glaucoma (POAG) patients and healthy controls during both the day and night while measuring in an upright as well as in a supine position. METHODS In a prospective clinical trial, 30 glaucoma patients on topical treatment and 50 healthy controls received IOP measurements every 4 h for a 24 h period starting at 8 am. Additionally, blood pressure and heart rate were measured and perfusion pressures were calculated. At 12 am IOP was initially measured in a sitting position and then, after 20 min, in a supine position. At midnight this was carried out conversely. At 4 am IOP was measured in a supine position; all other measurements were performed in a sitting position. Measurements in the sitting position were performed by Goldmann and Perkins tonometry and in a supine position by Perkins tonometry. RESULTS IOP was 1 mmHg lower in Perkins tonometry measurements compared to Goldmann tonometry. There was no difference between the two patient groups. In a supine position, IOP measured by Perkins tonometry was higher than in an upright position. At 12 am the difference was 1.8 mmHg+/-2.7 mmHg (p=0.001) in healthy subjects and 1.3+/-2.7 mmHg (p=0.013) in the POAG patients. At 12 pm the increase of IOP in the supine position was even more pronounced with 2.4+/-3.4 mmHg in healthy subjects and 5.6+/-3.2 mmHg in the POAG patients (p=0.001). The blood pressure and the perfusion pressure were lowest during night measurements. CONCLUSIONS During diurnal IOP measurements in an upright position there were no statistically significant differences in IOP changes between groups. However, in a supine position IOP was significantly higher than in a sitting position and increased more in the glaucoma patients than in healthy controls. This observation might be due to a faulty regulation of the fluid shift in glaucoma patients and could cause progression of glaucomatous damage.
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Affiliation(s)
- K Wozniak
- Universitätsaugenklinik Dresden, Fetscherstrasse 74, 01307 Dresden
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Wozniak K, Waszczykowska E, Hashimoto T, Ishii N, Torzecka JD, Narbutt J, Rogozinski T, Schwartz RA, Kowalewski C. Anti-epiligrin cicatricial pemphigoid initially limited to the upper respiratory tract. Br J Dermatol 2006; 154:779-81. [PMID: 16536833 DOI: 10.1111/j.1365-2133.2006.07131.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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38
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Gresner SM, Rieske P, Wozniak K, Piaskowski S, Jaskolski DJ, Skowronski W, Golanska E, Sikorska B, Liberski PP. Molecular analysis of chromosome 1, 10 and 19 abnormalities in human oligodendroglial tumors: relationship between frequency of LOH grade, age and gender. Clin Neuropathol 2006; 25:18-24. [PMID: 16465770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND Loss of heterozygosity (LOH) on 1p and 19q is observed in most oligodendroglial tumors. LOH on 10q appears to be less common in these tumors as compared to other gliomas. PATIENTS AND METHODS We reviewed 14 patients with oligodendroglial tumors (10 low-grade and 4 anaplastic oligodendroglioma) to evaluate the frequency of LOH on 1p, 10q and 19q and correlate it with tumor grade and patients' age and gender; 5 loci on 1p and 5 on 19q as well as 4 on 10q were analyzed for LOH using PCR techniques. RESULTS LOH on 1p together with 19q was detected in 6 tumors, 1 tumor showed deletion of 19q accompanied with deletion on 10q. Deletion on 1p was associated with deletion of 19q (p < 0.005) and mutual associations among deletions at loci on 19q (p < 0.05) were found. Patients with LOH on 1p were younger on average than patients with retained heterozygosity (p = 0.05). Grade II oligodendrogliomas predominated among younger patients (p < 0.01) while grade III oligodendrogliomas predominated among women (p < 0.005). No association between LOH on 1p nor 19q and tumor grade or patients' gender was found. CONCLUSION Our study provides several clinically interesting findings and further supports the hypothesis of chromosome 1p and 19q involvement in the oligodendroglial cancerogenesis.
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Affiliation(s)
- S M Gresner
- Department of Molecular Pathology and Neuropathology, Medical University of Lodz, Poland.
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Piaskowski S, Rieske P, Szybka M, Wozniak K, Bednarek A, Płuciennik E, Jaskolski D, Sikorska B, Liberski PP. GADD45A and EPB41 as tumor suppressor genes in meningioma pathogenesis. ACTA ACUST UNITED AC 2005; 162:63-7. [PMID: 16157202 DOI: 10.1016/j.cancergencyto.2005.02.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2004] [Revised: 02/01/2005] [Accepted: 02/11/2005] [Indexed: 10/25/2022]
Abstract
Deletions of 1p occur in approximately 30% of meningiomas. Based on loss of heterozygosity (LOH) analysis, two regions on 1p have been suspected to be carriers of tumor suppressor genes. We chose the GADD45A and EPB41 genes as tumor suppressor candidates based on their function and chromosomal localization. We analyzed 19 cases of meningioma with LOH of 1p by means of sequencing of the GADD45A gene and Western blotting of the GADD45a protein. Twenty cases of meningioma without 1p LOH were also analyzed by Western blotting to find out if changes of the GADD45a protein expression occurred. Nineteen samples with 1p LOH (12 grade I; 7 grade II, WHO classification) and 20 samples without 1p LOH (18 grade I; 2 grade II) were also analyzed by means of real-time polymerase chain reaction to find abnormalities in EPB41 mRNA levels in meningioma. LOH analysis was performed using seven microsatellite markers: D1S508 (1p36.2), D1S199 (1p36.1) D1S2734 (1p36.1), D1S2720 (1p34), D1S197 (1p32), D1S162 (1p32), D1S429 (1p11). LOH analysis confirmed previously described localization of putative tumor suppressor genes on 1p and involvement in meningioma pathogenesis (1p36 and 1p32). The open reading frame of GADD45A and intron splicing sites showed neither mutations nor polymorphisms. GADD45a protein molecular weight and expression level were unaltered in meningiomas with and without 1p LOH. We conclude that the GADD45A gene is not involved in meningioma tumorigenesis. EPB41 gene expression was unchanged in all analyzed meningiomas. This suggests that involvement of the EPB41 gene (4.1R protein) in meningioma pathogenesis should be reconsidered.
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Affiliation(s)
- S Piaskowski
- Department of Molecular Pathology and Neuropathology, Chair of Oncology, Medical University, Czechoslowacka st. 8/10, 92-216 Lodz, Poland
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Chruszcz M, Cymborowski M, Makal A, Otwinowski Z, Wozniak K, Minor W. Ultra-high resolution data for charge densities studies. Acta Crystallogr A 2005. [DOI: 10.1107/s0108767305082176] [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: 11/10/2022] Open
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Wozniak K, Korybut-Daszkiewicz B, Bilewicz R, Wieckowska A, Domagala S. An electrochemically controlled molecular shuttle. Acta Crystallogr A 2004. [DOI: 10.1107/s0108767304099386] [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: 11/11/2022] Open
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Abstract
Streptozotocin (STZ) is an antibiotic which can be used to induce diabetes in experimental animals in order to have an insight into pathogenesis of this disease. To use STZ as a diabetogenic substance, its molecular mode of action should be elucidated. Using the alkaline comet assay, we showed that STZ at concentrations in the range 0.01-100 micromol/L induced DNA damage in normal human lymphocytes and HeLa cancer cells in a dose-dependent manner. Lymphocytes were able to remove damage to their DNA within a 30-min repair incubation, whereas HeLa cells completed the repair in 60 min. Vitamins C and E at 10 and 50 micromol/L diminished the extent of DNA damage induced by 50 micromol/L STZ. Pretreatment of the lymphocytes with the nitrone spin trap, alpha-(4-pyridil-1-oxide)-N-tert-butylnitrone (POBN) or ebselen, which mimics glutathione peroxidase, or pyrrolidine dithiocarbamate (PDTC) reduced the extent of DNA damage evoked by STZ. The cells exposed to STZ and treated with endonuclease III (Endo III), formamidopyrimidine-DNA glycosylase (Fpg) and 3-methyladenine-DNA glycosylase II (AlkA), the enzymes recognizing oxidized and alkylated bases, displayed greater extent of DNA damage than those not treated with these enzymes. These results suggest that free radicals may be involved in the formation of DNA lesions induced by streptozotocin. The drug can also alkylate DNA bases. This broad range of DNA damage induced by STZ indicates that the drug may seriously affect genomic stability in normal and pathological cells.
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Affiliation(s)
- J Błasiak
- Department of Molecular Genetics, University of Lodz, Lodz, Poland.
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Lumley LA, Robison CL, Slusher BS, Wozniak K, Dawood M, Meyerhoff JL. Reduced isolation-induced aggressiveness in mice following NAALADase inhibition. Psychopharmacology (Berl) 2004; 171:375-81. [PMID: 14634711 DOI: 10.1007/s00213-003-1610-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2002] [Accepted: 07/22/2003] [Indexed: 10/26/2022]
Abstract
RATIONALE Long-term individual housing increases aggressive behavior in mice, a condition termed isolation-induced aggression; this aggressiveness is reduced by some antidepressants and anxiolytics. NMDA antagonists also inhibit isolation-induced aggression in mice. The enzyme N-acetylated-alpha-linked acidic dipeptidase (NAALADase) hydrolyzes the neurotransmitter N-acetylaspartylglutamate (NAAG) to form glutamate and N-acetylaspartate; NAAG acts as a partial NMDA agonist as well as a full agonist at the presynaptic metabotropic glutamate receptor 3 (mGluR3), where it acts to reduce glutamate release. OBJECTIVE We postulated that NAALADase inhibition would reduce isolation-induced aggression in mice. METHODS We tested whether acute exposure to the NAALADase inhibitor 2-[[hydroxy[2,3,4,5,6-pentafluorophenyl)methyl]phosphinyl]methyl] pentanedioic acid (GPI-5232), administered 30 min prior to a social interaction test, would inhibit aggressive behavior in SJL mice that had been individually housed long term. RESULTS Administration of GPI-5232 (30 mg/kg, IP) inhibited initiation of aggressive behavior, indicated by greater latencies to display tail-rattling, attack and biting, and by fewer mice initiating aggressive behavior, compared to mice that received vehicle. In addition, GPI-5232 treated mice had fewer tail-rattling responses to a non-aggressive conspecific. CONCLUSIONS The effectiveness of GPI-5232 in this animal model suggests that NAALADase inhibition may be a novel therapeutic approach to reduce or inhibit heightened aggressiveness, and possibly to treat aggressive behavior associated with psychiatric disorders.
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Affiliation(s)
- L A Lumley
- Department of Neurochemistry and Neuroendocrinology, Division of Neurosciences, Walter Reed Army Institute of Research, 503 Robert Grant Avenue, Silver Spring, MD 20910, USA.
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Vastardis S, Leigh JE, Wozniak K, Yukna R, Fidel PL. Influence of periodontal disease on Th1/Th2-type cytokines in saliva of HIV-positive individuals. Oral Microbiol Immunol 2003; 18:88-91. [PMID: 12654096 DOI: 10.1034/j.1399-302x.2003.00045.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Cytokines present during immune responses have a tremendous influence on resistance/susceptibility to oral diseases including periodontal disease and oral opportunistic infections in the immunocompromised individual, as seen by altered Th cytokines in saliva with human immunodeficiency virus (HIV) disease progression and oropharyngeal candidiasis. This study was designed to evaluate whether the presence of severe periodontal disease has any influence on Th cytokines in saliva of HIV-positive persons. For this, saliva from a cohort of HIV-positive persons with mild or severe periodontitis was evaluated for Th cytokines. A dominant Th2-type cytokine profile in saliva was validated in HIV-positive subjects with considerable immune suppression, irrespective of periodontal disease status. However, no significant differences in concentrations of Th1- or Th2-type cytokines in saliva were observed when stratified by periodontal status. Thus, the lack of salivary influences by periodontitis eliminates periodontal disease as a variable in interpretations regarding correlates of local cytokines during oral manifestations of HIV.
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Affiliation(s)
- S Vastardis
- Department of Periodontics, Louisiana State University School of Dentistry, New Orleans, LA 70119, USA
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Jackson PF, Tays KL, Maclin KM, Ko YS, Li W, Vitharana D, Tsukamoto T, Stoermer D, Lu XC, Wozniak K, Slusher BS. Design and pharmacological activity of phosphinic acid based NAALADase inhibitors. J Med Chem 2001; 44:4170-5. [PMID: 11708918 DOI: 10.1021/jm0001774] [Citation(s) in RCA: 72] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel series of phosphinic acid based inhibitors of the neuropeptidase NAALADase are described in this work. This series of compounds is the most potent series of inhibitors of the enzyme described to date. In addition, we have shown that these compounds are protective in animal models of neurodegeneration. Compound 34 significantly prevented neurodegeneration in a middle cerebral artery occlusion model of cerebral ischemia. In addition, in the chronic constrictive model of neuropathic pain, compound 34 significantly attenuated the hypersensitivity observed with saline-treated animals. These data suggest that NAALADase inhibition may provide a new approach for the treatment of both neurodegenerative disorders and peripheral neuropathies.
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Affiliation(s)
- P F Jackson
- Guilford Pharmaceuticals Inc., 6611 Tributary Street, Baltimore, Maryland 21224, USA
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Wormley FL, Steele C, Wozniak K, Fujihashi K, McGhee JR, Fidel PL. Resistance of T-cell receptor delta-chain-deficient mice to experimental Candida albicans vaginitis. Infect Immun 2001; 69:7162-4. [PMID: 11598094 PMCID: PMC100112 DOI: 10.1128/iai.69.11.7162-7164.2001] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Conditions consistent with tolerance or immunoregulation have been observed in experimental Candida albicans vaginal infections. The present study investigated the role of gamma/delta T cells in experimental vaginal candidiasis. Results showed that T-cell receptor delta-chain-knockout mice had significantly less vaginal fungal burden when compared to wild-type mice, suggesting an immunoregulatory role for gamma/delta T cells in Candida vaginitis.
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MESH Headings
- Animals
- Candidiasis/immunology
- Disease Models, Animal
- Female
- Hypersensitivity, Delayed/immunology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Nitrogen Oxides/metabolism
- Receptors, Antigen, T-Cell, gamma-delta/genetics
- Receptors, Antigen, T-Cell, gamma-delta/immunology
- T-Lymphocytes/immunology
- Th1 Cells/immunology
- Th2 Cells/immunology
- Vaginitis/immunology
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Affiliation(s)
- F L Wormley
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, Louisiana 70112, USA
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Taylor BN, Fichtenbaum C, Saavedra M, Slavinsky III J, Swoboda R, Wozniak K, Arribas A, Powderly W, Fidel PL. In vivo virulence of Candida albicans isolates causing mucosal infections in people infected with the human immunodeficiency virus. J Infect Dis 2000; 182:955-9. [PMID: 10950797 DOI: 10.1086/315768] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2000] [Revised: 06/12/2000] [Indexed: 11/03/2022] Open
Abstract
Mucosal candidiasis is common in human immunodeficiency virus (HIV) infection. Susceptibility to such infections may be attributed to reduced host defense mechanisms and/or virulence of the organism. In the present study, we compared the virulence of mucosal Candida albicans isolates from HIV-infected people, with and without fluconazole-refractory infection, in established murine models of systemic and vaginal candidiasis. Compared with the mortality rate ( approximately 70%) after intravenous challenge with 2 virulent reference isolates, challenge with most clinical isolates (66%-77%) resulted in prolonged survival. In contrast, fungal burden induced by intravaginal challenge of nearly all (97%) isolates was similar to that of the virulent controls. There were no differences in in vitro growth rates for any of the isolates, and there was no association between reduced mortality and clinical failure to fluconazole, in vitro antifungal susceptibility, site of infection, or other host factors. These results suggest that virulence of C. albicans is tissue specific and is not a factor in the development of fluconazole-refractory infections in advanced HIV disease.
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Affiliation(s)
- B N Taylor
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
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Wozniak K, Mallinson PR, Wilson CC, Hovestreydt E, Grech E. Weak Interactions in Dipicrylamine. Acta Crystallogr A 2000. [DOI: 10.1107/s0108767300028919] [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: 11/10/2022] Open
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Vornov JJ, Wozniak K, Lu M, Jackson P, Tsukamoto T, Wang E, Slusher B. Blockade of NAALADase: a novel neuroprotective strategy based on limiting glutamate and elevating NAAG. Ann N Y Acad Sci 2000; 890:400-5. [PMID: 10668445 DOI: 10.1111/j.1749-6632.1999.tb08019.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Excessive glutamate receptor activation is thought to be involved in the neuronal injury caused by stroke. Based on the hypothesis that N-acetyl-aspartyl-glutamate (NAAG) is a modulatory neurotransmitter or storage form of glutamate, we have pursued a novel strategy of therapeutic intervention, blockade of N-acetylated alpha-linked acidic dipeptidase (NAALADase), the enzyme that hydrolyzes NAAG to liberate glutamate. Using the suture model of transient middle cerebral artery occlusion (MCAO) in rats, the prototype NAALADase inhibitor 2-(phosphonomethyl)pentanedioic acid (2-PMPA) dramatically reduced extracellular glutamate accumulation measured by microdialysis both during a 2-hour occlusion and during reperfusion, consistent with an effect on glutamate supply. During reperfusion, the decrease in glutamate was accompanied by an equimolar, reciprocal rise in extracellular NAAG. NAALADase inhibition may prove to be a well tolerated therapy for cerebral ischemia. In addition, NAALADase inhibitors should prove to be important tools in understanding the physiological role of NAAG in the brain.
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Affiliation(s)
- J J Vornov
- Guilford Pharmaceuticals Inc., Baltimore, Maryland 21224, USA
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