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Khazali S, Mondelli B, Fleischer K, Adamczyk M. Indocyanine Green tattooing for marking the caudal excision margin of a full-thickness vaginal endometriotic nodule. Facts Views Vis Obgyn 2023; 15:89-91. [PMID: 37010340 PMCID: PMC10392110 DOI: 10.52054/fvvo.15.1.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
Background: The use of Indocyanine Green (ICG) is well-described in oncology and more recently in benign gynaecological surgery. In this article we describe submucosal transvaginal ICG infiltration caudal to a vaginal endometriotic nodule to visualise the lower margin of excision laparoscopically.
Objectives: To demonstrates the use of submucosal ICG tattooing to mark and delineate the caudal margin of an ultra-low full thickness vaginal nodule and aid its excision laparoscopically.
Material and methods: A stepwise approach highlighting the “SOSURE” surgical technique for the excision of endometriosis and the practical use of the ICG to delineate the lowest margin of the full thickness vaginal nodule.
Main outcome measures: Laparoscopic complete excision of a 5 cm full-thickness vaginal nodule invading the right parametrium and involving the superficial muscularis layer of the rectum.
Result: ICG tattooing was helpful in identifying the lower margin of dissection of the rectovaginal space.
Conclusion: ICG tattooing of the margins of full-thickness vaginal nodules could be another use of ICG in benign gynaecology to complement the surgeon’s tactile and visual identification of the lower edge of dissection.
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Adamczyk M, Lewicka E, Szatkowska R, Nieznanska H, Ludwiczak J, Jasiński M, Dunin-Horkawicz S, Sitkiewicz E, Swiderska B, Goch G, Jagura-Burdzy G. Revealing biophysical properties of KfrA-type proteins as a novel class of cytoskeletal, coiled-coil plasmid-encoded proteins. BMC Microbiol 2021; 21:32. [PMID: 33482722 PMCID: PMC7821693 DOI: 10.1186/s12866-020-02079-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 12/20/2020] [Indexed: 01/22/2023] Open
Abstract
Background DNA binding KfrA-type proteins of broad-host-range bacterial plasmids belonging to IncP-1 and IncU incompatibility groups are characterized by globular N-terminal head domains and long alpha-helical coiled-coil tails. They have been shown to act as transcriptional auto-regulators. Results This study was focused on two members of the growing family of KfrA-type proteins encoded by the broad-host-range plasmids, R751 of IncP-1β and RA3 of IncU groups. Comparative in vitro and in silico studies on KfrAR751 and KfrARA3 confirmed their similar biophysical properties despite low conservation of the amino acid sequences. They form a wide range of oligomeric forms in vitro and, in the presence of their cognate DNA binding sites, they polymerize into the higher order filaments visualized as “threads” by negative staining electron microscopy. The studies revealed also temperature-dependent changes in the coiled-coil segment of KfrA proteins that is involved in the stabilization of dimers required for DNA interactions. Conclusion KfrAR751 and KfrARA3 are structural homologues. We postulate that KfrA type proteins have moonlighting activity. They not only act as transcriptional auto-regulators but form cytoskeletal structures, which might facilitate plasmid DNA delivery and positioning in the cells before cell division, involving thermal energy. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-020-02079-w.
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Affiliation(s)
- M Adamczyk
- Warsaw University of Technology, Faculty of Chemistry, Chair of Drug and Cosmetics Biotechnology, Noakowskiego 3, 00-664, Warsaw, Poland.
| | - E Lewicka
- Department of Microbial Biochemistry, Institute of Biochemistry and Biophysics PAS, Pawinskiego 5a, 02-106, Warsaw, Poland
| | - R Szatkowska
- Warsaw University of Technology, Faculty of Chemistry, Chair of Drug and Cosmetics Biotechnology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - H Nieznanska
- Nencki Institute of Experimental Biology PAS, Laboratory of Electron Microscopy, Pasteura 3, 02-093, Warsaw, Poland
| | - J Ludwiczak
- University of Warsaw, Centre of New Technologies, Laboratory of Structural Bioinformatics, 02-097, Warsaw, Poland.,Nencki Institute of Experimental Biology, Laboratory of Bioinformatics, Pasteura 3, 02-093, Warsaw, Poland
| | - M Jasiński
- University of Warsaw, Centre of New Technologies, Laboratory of Structural Bioinformatics, 02-097, Warsaw, Poland
| | - S Dunin-Horkawicz
- University of Warsaw, Centre of New Technologies, Laboratory of Structural Bioinformatics, 02-097, Warsaw, Poland
| | - E Sitkiewicz
- Mass Spectrometry Laboratory, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106, Warsaw, Poland
| | - B Swiderska
- Mass Spectrometry Laboratory, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106, Warsaw, Poland
| | - G Goch
- Department of Microbial Biochemistry, Institute of Biochemistry and Biophysics PAS, Pawinskiego 5a, 02-106, Warsaw, Poland
| | - G Jagura-Burdzy
- Department of Microbial Biochemistry, Institute of Biochemistry and Biophysics PAS, Pawinskiego 5a, 02-106, Warsaw, Poland
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Adamczyk M, Konkol M, Matecka-Nowak M, Piotrowski T. 4DCT-based evaluation of lung tumour motion during the breathing cycle. Neoplasma 2019; 67:193-202. [PMID: 31847524 DOI: 10.4149/neo_2019_190309n206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 07/02/2019] [Indexed: 11/08/2022]
Abstract
The aim of this work was to quantify the variability in pre-treatment lung tumor motion during a single breathing period for 55 non-small cell lung cancer (NSCLC) targets. The influence of breathing on the volume and position of lung tumor was examined by comparing the information about tumor from respiratory-correlated four-dimensional computed tomography (4DCT) and three-dimensional computed tomography (3DCT) obtained without respiratory monitoring. The impact of age, gender, lung volume changes and immobilization device on tumor respiratory motion was evaluated. Based on the performed analysis, the significant differences were found between tumor volumes on 3DCT and 4DCT, although the comparison of volumes between 4DCT bins showed no statistically significant dependency. The significant differences between tumor centre of mass coordinates in the cranial-caudal (CC) and anterior-posterior (AP) directions were found. According to the results of statistical testing, there was no impact of gender and immobilization device on detected tumor respiratory motion. The impact was found for patient's age, lung volume changes, tumor volume and its location in different lung segments. The dominant lung cancer motion was observed for smaller tumors (up to 20 cc) located in posterior, caudal segments. This effect was also associated with a large variation in the lung volume during one respiratory cycle, observed for older patients. The important finding of the study is connected with the description of different patterns of tumor motion in AP and CC directions.
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Affiliation(s)
- M Adamczyk
- Medical Physics Department, Greater Poland Cancer Centre, Poznan, Poland
| | - M Konkol
- 1st Radiotherapy Ward, Greater Poland Cancer Centre, Poznan, Poland
| | - M Matecka-Nowak
- 1st Radiotherapy Ward, Greater Poland Cancer Centre, Poznan, Poland
| | - T Piotrowski
- Medical Physics Department, Greater Poland Cancer Centre, Poznan, Poland.,Department of Electroradiology, Poznan University of Medical Sciences, Poznan, Poland
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Zeymer U, Ludman P, Danchin N, Kala P, Maggioni AP, Weidinger F, Gale CP, Beleslin B, Budaj A, Chioncel O, Dagres N, Danchin N, Emberson J, Erlinge D, Glikson M, Gray A, Kayikcioglu M, Maggioni AP, Nagy VK, Nedoshivin A, Petronio AS, Roos-Hesselink J, Wallentin L, Zeymer U, Weidinger F, Zeymer U, Danchin N, Ludman P, Sinnaeve P, Kala P, Ferrari R, Maggioni AP, Goda A, Zelveian P, Weidinger F, Karamfilov K, Motovska Z, Zeymer U, Raungaard B, Marandi T, Shaheen SM, Lidon RM, Karjalainen PP, Kereselidze Z, Alexopoulos D, Becker D, Quinn M, Iakobishvili Z, Al-Farhan H, Sadeghi M, Caporale R, Romeo F, Mirrakhimov E, Serpytis P, Erglis A, Kedev S, Balbi MM, Moore AM, Dudek D, Legutko J, Mimoso J, Tatu-Chitoiu G, Stojkovic S, Shlyakhto E, AlHabib KF, Bunc M, Studencan M, Mourali MS, Bajraktari G, Konte M, Larras F, Lefrancq EF, Mekhaldi S, Laroche C, Maggioni AP, Goda A, Shuka N, Pavli E, Tafaj E, Gishto T, Dibra A, Duka A, Gjana A, Kristo A, Knuti G, Demiraj A, Dado E, Hasimi E, Simoni L, Siqeca M, Sisakian H, Hayrapetyan H, Markosyan S, Galustyan L, Arustamyan N, Kzhdryan H, Pepoyan S, Zirkik A, Von Lewinski D, Paetzold S, Kienzl I, Matyas K, Neunteufl T, Nikfardjam M, Neuhold U, Mihalcz A, Glaser F, Steinwender C, Reiter C, Grund M, Hrncic D, Hoppe U, Hammerer M, Hinterbuchner L, Hengstenberg C, Delle Karth G, Lang I, Weidinger F, Winkler W, Hasun M, Kastner J, Havel C, Derntl M, Oberegger G, Hajos J, Adlbrecht C, Publig T, Leitgeb MC, Wilfing R, Jirak P, Ho CY, Puskas L, Schrutka L, Spinar J, Parenica J, Hlinomaz O, Fendrychova V, Semenka J, Sikora J, Sitar J, Groch L, Rezek M, Novak M, Kramarikova P, Stasek J, Dusek J, Zdrahal P, Polasek R, Karasek J, Seiner J, Sukova N, Varvarovsky I, Lazarák T, Novotny V, Matejka J, Rokyta R, Volovar S, Belohlavek J, Motovska Z, Siranec M, Kamenik M, Kralik R, Raungaard B, Ravkilde J, Jensen SE, Villadsen A, Villefrance K, Schmidt Skov C, Maeng M, Moeller K, Hasan-Ali H, Ahmed TA, Hassan M, ElGuindy A, Farouk Ismail M, Ibrahim Abd El-Aal A, El-sayed Gaafar A, Magdy Hassan H, Ahmed Shafie M, Nabil El-khouly M, Bendary A, Darwish M, Ahmed Y, Amin O, AbdElHakim A, Abosaif K, Kandil H, Galal MAG, El Hefny EE, El Sayed M, Aly K, Mokarrab M, Osman M, Abdelhamid M, Mantawy S, Ali MR, Kaky SD, Khalil VA, Saraya MEA, Talaat A, Nabil M, Mounir WM, Mahmoud K, Aransa A, Kazamel G, Anwar S, Al-Habbaa A, Abd el Monem M, Ismael A, Amin Abu-Sheaishaa M, Abd Rabou MM, Hammouda TMA, Moaaz M, Elkhashab K, Ragab T, Rashwan A, Rmdan A, AbdelRazek G, Ebeid H, Soliman Ghareeb H, Farag N, Zaki M, Seleem M, Torki A, Youssef M, AlLah Nasser NA, Rafaat A, Selim H, Makram MM, Khayyal M, Malasi K, Madkour A, Kolib M, Alkady H, Nagah H, Yossef M, Wafa A, Mahfouz E, Faheem G, Magdy Moris M, Ragab A, Ghazal M, Mabrouk A, Hassan M, El-Masry M, Naseem M, Samir S, Marandi T, Reinmets J, Allvee M, Saar A, Ainla T, Vaide A, Kisseljova M, Pakosta U, Eha J, Lotamois K, Sia J, Myllymaki J, Pinola T, Karjalainen PP, Paana T, Mikkelsson J, Ampio M, Tsivilasvili J, Zurab P, Kereselidze Z, Agladze R, Melia A, Gogoberidze D, Khubua N, Totladze L, Metreveli I, Chikovani A, Eitel I, Pöss J, Werner M, Constantz A, Ahrens C, Zeymer U, Tolksdorf H, Klinger S, Sack S, Heer T, Lekakis J, Kanakakis I, Xenogiannis I, Ermidou K, Makris N, Ntalianis A, Katsaros F, Revi E, Kafkala K, Mihelakis E, Diakakis G, Grammatikopoulos K, Voutsinos D, Alexopoulos D, Xanthopoulou I, Mplani V, Foussas S, Papakonstantinou N, Patsourakos N, Dimopoulos A, Derventzis A, Athanasiou K, Vassilikos VP, Papadopoulos C, Tzikas S, Vogiatzis I, Datsios A, Galitsianos I, Koutsampasopoulos K, Grigoriadis S, Douras A, Baka N, Spathis S, Kyrlidis T, Hatzinikolaou H, Kiss RG, Becker D, Nowotta F, Tóth K, Szabó S, Lakatos C, Jambrik Z, Ruzsa J, Ruzsa Z, Róna S, Toth J, Vargane Kosik A, Toth KSB, Nagy GG, Ondrejkó Z, Körömi Z, Botos B, Pourmoghadas M, Salehi A, Massoumi G, Sadeghi M, Soleimani A, Sarrafzadegan N, Roohafza H, Azarm M, Mirmohammadsadeghi A, Rajabi D, Rahmani Y, Siabani S, Najafi F, Hamzeh B, Karim H, Siabani H, Saleh N, Charehjoo H, Zamzam L, Al-Temimi G, Al-Farhan H, Al-Yassin A, Mohammad A, Ridha A, Al-Saedi G, Atabi N, Sabbar O, Mahmood S, Dakhil Z, Yaseen IF, Almyahi M, Alkenzawi H, Alkinani T, Alyacopy A, Kearney P, Twomey K, Iakobishvili Z, Shlomo N, Beigel R, Caldarola P, Rutigliano D, Sublimi Saponetti L, Locuratolo N, Palumbo V, Scherillo M, Formigli D, Canova P, Musumeci G, Roncali F, Metra M, Lombardi C, Visco E, Rossi L, Meloni L, Montisci R, Pippia V, Marchetti MF, Congia M, Cacace C, Luca G, Boscarelli G, Indolfi C, Ambrosio G, Mongiardo A, Spaccarotella C, De Rosa S, Canino G, Critelli C, Caporale R, Chiappetta D, Battista F, Gabrielli D, Marziali A, Bernabò P, Navazio A, Guerri E, Manca F, Gobbi M, Oreto G, Andò G, Carerj S, Saporito F, Cimmino M, Rigo F, Zuin G, Tuccillo B, Scotto di Uccio F, Irace L, Lorenzoni G, Meloni I, Merella P, Polizzi GM, Pino R, Marzilli M, Morrone D, Caravelli P, Orsini E, Mosa S, Piovaccari G, Santarelli A, Cavazza C, Romeo F, Fedele F, Mancone M, Straito M, Salvi N, Scarparo P, Severino P, Razzini C, Massaro G, Cinque A, Gaudio C, Barillà F, Torromeo C, Porco L, Mei M, Iorio R, Nassiacos D, Barco B, Sinagra G, Falco L, Priolo L, Perkan A, Strana M, Bajraktari G, Percuku L, Berisha G, Mziu B, Beishenkulov M, Abdurashidova T, Toktosunova A, Kaliev K, Serpytis P, Serpytis R, Butkute E, Lizaitis M, Broslavskyte M, Xuereb RG, Moore AM, Mercieca Balbi M, Paris E, Buttigieg L, Musial W, Dobrzycki S, Dubicki A, Kazimierczyk E, Tycinska A, Wojakowski W, Kalanska-Lukasik B, Ochala A, Wanha W, Dworowy S, Sielski J, Janion M, Janion-Sadowska A, Dudek D, Wojtasik-Bakalarz J, Bryniarski L, Peruga JZ, Jonczyk M, Jankowski L, Klecha A, Legutko J, Michalowska J, Brzezinski M, Kozmik T, Kowalczyk T, Adamczuk J, Maliszewski M, Kuziemka P, Plaza P, Jaros A, Pawelec A, Sledz J, Bartus S, Zmuda W, Bogusz M, Wisnicki M, Szastak G, Adamczyk M, Suska M, Czunko P, Opolski G, Kochman J, Tomaniak M, Miernik S, Paczwa K, Witkowski A, Opolski MP, Staruch AD, Kalarus Z, Honisz G, Mencel G, Swierad M, Podolecki T, Marques J, Azevedo P, Pereira MA, Gaspar A, Monteiro S, Goncalves F, Leite L, Mimoso J, Manuel Lopes dos Santos W, Amado J, Pereira D, Silva B, Caires G, Neto M, Rodrigues R, Correia A, Freitas D, Lourenco A, Ferreira F, Sousa F, Portugues J, Calvo L, Almeida F, Alves M, Silva A, Caria R, Seixo F, Militaru C, Ionica E, Tatu-Chitoiu G, Istratoaie O, Florescu M, Lipnitckaia E, Osipova O, Konstantinov S, Bukatov V, Vinokur T, Egorova E, Nefedova E, Levashov S, Gorbunova A, Redkina M, Karaulovskaya N, Bijieva F, Babich N, Smirnova O, Filyanin R, Eseva S, Kutluev A, Chlopenova A, Shtanko A, Kuppar E, Shaekhmurzina E, Ibragimova M, Mullahmetova M, Chepisova M, Kuzminykh M, Betkaraeva M, Namitokov A, Khasanov N, Baleeva L, Galeeva Z, Magamedkerimova F, Ivantsov E, Tavlueva E, Kochergina A, Sedykh D, Kosmachova E, Skibitskiy V, Porodenko N, Namitokov A, Litovka K, Ulbasheva E, Niculina S, Petrova M, Harkov E, Tsybulskaya N, Lobanova A, Chernova A, Kuskaeva A, Kuskaev A, Ruda M, Zateyshchikov D, Gilarov M, Konstantinova E, Koroleva O, Averkova A, Zhukova N, Kalimullin D, Borovkova N, Tokareva A, Buyanova M, Khaisheva L, Pirozhenko A, Novikova T, Yakovlev A, Tyurina T, Lapshin K, Moroshkina N, Kiseleva M, Fedorova S, Krylova L, Duplyakov D, Semenova Y, Rusina A, Ryabov V, Syrkina A, Demianov S, Reitblat O, Artemchuk A, Efremova E, Makeeva E, Menzorov M, Shutov A, Klimova N, Shevchenko I, Elistratova O, Kostyuckova O, Islamov R, Budyak V, Ponomareva E, Ullah Jan U, Alshehri AM, Sedky E, Alsihati Z, Mimish L, Selem A, Malik A, Majeed O, Altnji I, AlShehri M, Aref A, AlHabib K, AlDosary M, Tayel S, Abd AlRahman M, Asfina KN, Abdin Hussein G, Butt M, Markovic Nikolic N, Obradovic S, Djenic N, Brajovic M, Davidovic A, Romanovic R, Novakovic V, Dekleva M, Spasic M, Dzudovic B, Jovic Z, Cvijanovic D, Veljkovic S, Ivanov I, Cankovic M, Jarakovic M, Kovacevic M, Trajkovic M, Mitov V, Jovic A, Hudec M, Gombasky M, Sumbal J, Bohm A, Baranova E, Kovar F, Samos M, Podoba J, Kurray P, Obona T, Remenarikova A, Kollarik B, Verebova D, Kardosova G, Studencan M, Alusik D, Macakova J, Kozlej M, Bayes-Genis A, Sionis A, Garcia Garcia C, Lidon RM, Duran Cambra A, Labata Salvador C, Rueda Sobella F, Sans Rosello J, Vila Perales M, Oliveras Vila T, Ferrer Massot M, Bañeras J, Lekuona I, Zugazabeitia G, Fernandez-Ortiz A, Viana Tejedor A, Ferrera C, Alvarez V, Diaz-Castro O, Agra-Bermejo RM, Gonzalez-Cambeiro C, Gonzalez-Babarro E, Domingo-Del Valle J, Royuela N, Burgos V, Canteli A, Castrillo C, Cobo M, Ruiz M, Abu-Assi E, Garcia Acuna JM. The ESC ACCA EAPCI EORP acute coronary syndrome ST-elevation myocardial infarction registry. European Heart Journal - Quality of Care and Clinical Outcomes 2019; 6:100-104. [DOI: 10.1093/ehjqcco/qcz042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 07/24/2019] [Indexed: 12/20/2022]
Abstract
Abstract
Aims
The Acute Cardiac Care Association (ACCA)–European Association of Percutaneous Coronary Intervention (EAPCI) Registry on ST-elevation myocardial infarction (STEMI) of the EurObservational programme (EORP) of the European Society of Cardiology (ESC) registry aimed to determine the current state of the use of reperfusion therapy in ESC member and ESC affiliated countries and the adherence to ESC STEMI guidelines in patients with STEMI.
Methods and results
Between 1 January 2015 and 31 March 2018, a total of 11 462 patients admitted with an initial diagnosis of STEMI according to the 2012 ESC STEMI guidelines were enrolled. Individual patient data were collected across 196 centres and 29 countries. Among the centres, there were 136 percutaneous coronary intervention centres and 91 with cardiac surgery on-site. The majority of centres (129/196) were part of a STEMI network. The main objective of this study was to describe the demographic, clinical, and angiographic characteristics of patients with STEMI. Other objectives include to assess management patterns and in particular the current use of reperfusion therapies and to evaluate how recommendations of most recent STEMI European guidelines regarding reperfusion therapies and adjunctive pharmacological and non-pharmacological treatments are adopted in clinical practice and how their application can impact on patients’ outcomes. Patients will be followed for 1 year after admission.
Conclusion
The ESC ACCA-EAPCI EORP ACS STEMI registry is an international registry of care and outcomes of patients hospitalized with STEMI. It will provide insights into the contemporary patient profile, management patterns, and 1-year outcome of patients with STEMI.
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Affiliation(s)
- Uwe Zeymer
- Hospital of the City of Ludwigshafen, Medical Clinic B and Institute of Heart Attack Research, Ludwigshafen on the Rhine, Germany
| | - Peter Ludman
- Institute of Cardiovascular Sciences, Birmingham University, Birmingham, UK
| | - Nicolas Danchin
- Cardiology Department, Georges Pompidou European Hospital, Paris, France
| | - Petr Kala
- Internal Cardiology Department, University Hospital Brno, Czech Republic
| | - Aldo P Maggioni
- EURObservational Research Programme, ESC, Sophia Antipolis, France
- ANMCO Research Center, Florence, Italy
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Skrobala A, Ginter J, Pawalowski B, Skowron M, Adamczyk M, Jodda A, Litoborska J. EP-1820 Preliminary results of using artificial neural networks for prediction CK planning parameters. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32240-6] [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: 10/26/2022]
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6
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Schüssler P, Kluge M, Adamczyk M, Beitinger ME, Beitinger P, Bleifuss A, Cordeiro S, Mattern C, Uhr M, Wetter TC, Yassouridis A, Rupprecht R, Friess E, Steiger A. Sleep after intranasal progesterone vs. zolpidem and placebo in postmenopausal women - A randomized, double-blind cross over study. Psychoneuroendocrinology 2018; 92:81-86. [PMID: 29649764 DOI: 10.1016/j.psyneuen.2018.04.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 12/14/2017] [Revised: 03/04/2018] [Accepted: 04/02/2018] [Indexed: 11/16/2022]
Abstract
CONTEXT The loss of progesterone during menopause is linked to sleep complaints of the affected women. Previously we demonstrated sleep promoting effects of oral progesterone replacement in postmenopausal women. The oral administration of progesterone, however, is compromised by individual differences in bioavailability and metabolism of the steroid. OBJECTIVE We compared the sleep-endocrine effects after intranasal progesterone (MPP22), zolpidem and placebo in healthy postmenopausal women. DESIGN This was a randomized double-blind cross-over study. SETTING German monocentric study PARTICIPANTS: Participants were 12 healthy postmenopausal women. INTERVENTIONS Subjects received in randomized order four treatments, 2 doses of intranasal progesterone (4.5 mg and 9 mg of MPP22), 10 mg of zolpidem and placebo. OUTCOME MEASURES Main outcome were conventional and quantitative sleep-EEG variables. Secondary outcomes were the subjective sleep variables and the sleep related concentrations of cortisol, growth hormone (GH), melatonin and progesterone. RESULTS Sleep promoting effects were found after the higher dosage of MPP22 and after zolpidem. Zolpidem prompted benzodiazepine-like effects on quantitative sleep EEG as expected, whereas no such changes were found after the two dosages of MP22. Nocturnal progesterone levels increased after 9.0 mg MPP22. No other changes of hormone secretion were found. CONCLUSIONS Our study shows sleep promoting effects after intranasal progesterone. The spectral signature of intranasal progesterone did not resemble the sleep-EEG alterations induced by GABA active compounds. Progesterone levels were elevated after 9.0 mg MPP22. No other endocrine effects were observed.
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Affiliation(s)
- P Schüssler
- Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany; Department of Psychiatry, University of Regensburg, Regensburg, Germany
| | - M Kluge
- Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany; Department of Psychiatry, University of Leipzig, Leipzig, Germany
| | - M Adamczyk
- Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany
| | - M E Beitinger
- Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany
| | - P Beitinger
- Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany
| | - A Bleifuss
- Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany
| | - S Cordeiro
- Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany
| | - C Mattern
- M et P Pharma AG, 6376 Emmetten, Switzerland
| | - M Uhr
- Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany
| | - T C Wetter
- Department of Psychiatry, University of Regensburg, Regensburg, Germany
| | - A Yassouridis
- Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany
| | - R Rupprecht
- Department of Psychiatry, University of Regensburg, Regensburg, Germany
| | - E Friess
- Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany
| | - A Steiger
- Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany.
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Skrobaa A, Janiga P, Adamczyk M, Jodda A, Joanna L, Dura J, Elzbieta C, Milecki P. Evaluation of Tolerance to Robotic Radiosurgery–Based Stereotactic Radiation Therapy of Primary Intraocular Uveal Melanoma. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1492] [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: 11/30/2022]
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8
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Skrobala A, Adamczyk M, Janiga P, Jodda A, Litoborska J, Czajka E, Dura J, Milecki P. EP-1591: Evaluation of noninvasive eye fixation system on Cyberknife radiotherapy of orbital’s tumors. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)32026-1] [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: 11/25/2022]
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9
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Abstract
Transglutaminase 2 (TG2) is highly expressed during chondrocyte maturation and contributes to the formation of a mineralised scaffold by introducing crosslinks between extracellular matrix (ECM) proteins. In healthy cartilage, TG2 stabilises integrity of ECM and likely influences cartilage stiffness and mechanistic properties. At the same time, the abnormal accumulation of TG2 in the ECM promotes chondrocyte hypertrophy and cartilage calcification, which might be an important aspect of osteoarthritis (OA) initiation. Although excessive joint loading and injuries are one of the main causes leading to OA development, it is now being recognised that the presence of inflammatory mediators accelerates OA progression. Inflammatory signalling is known to stimulate the extracellular TG2 activity in cartilage and promote TG2-catalysed crosslinking of molecules that promote chondrocyte osteoarthritic differentiation. It is, however, unclear whether TG2 activity aims to resolve or aggravate damages within the arthritic joint. Better understanding of the complex signalling pathways linking inflammation with TG2 activities is needed to identify the role of TG2 in OA and to define possible avenues for therapeutic interventions.
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Affiliation(s)
- M Adamczyk
- Matrix Biology and Tissue Repair Research Unit, Oral and Biomedical Sciences, College of Biomedical and Life Sciences, School of Dentistry, Cardiff University, Heath Park, Cardiff, CF14 4XY, UK.
- Academic Unit of Bone Biology, Department of Oncology and Metabolism, Mellanby Centre For Bone Research, Medical School, The University of Sheffield, Beech Hill Road, Sheffield, S10 2RX, UK.
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10
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De Filippo E, Russotto P, Acosta L, Adamczyk M, Al-Ajlan A, Al-Garawi M, Al-Homaidhi S, Amorini F, Auditore L, Aumann T, Ayyad Y, Basrak Z, Benlliure J, Boisjoli M, Boretzky K, Brzychczyk J, Budzanowski A, Caesar C, Cardella G, Cammarata P, Chajecki Z, Chartier M, Chbihi A, Colonna M, Cozma M, Czech B, Di Toro M, Famiano M, Gannon S, Gašparić I, Grassi L, Guazzoni C, Guazzoni P, Heil M, Heilborn L, Introzzi R, Isobe T, Kezzar K, Kiš M, Krasznahorkay A, Kupny S, Kurz N, La Guidara E, Lanzalone G, Lasko P, Le Fèvre A, Leifels Y, Lemmon R, Li Q, Lombardo I, Łukasik J, Lynch W, Marini P, Matthews Z, May L, Minniti T, Mostazo M, Pagano A, Pagano E, Papa M, Pawłowski P, Pirrone S, Politi G, Porto F, Reviol W, Riccio F, Rizzo F, Rosato E, Rossi D, Santoro S, Sarantites D, Simon H, Skwirczynska I, Sosin Z, Stuhl L, Trautmann W, Trifirò A, Trimarchi M, Tsang M, Verde G, Veselsky M, Vigilante M, Wang Y, Wieloch A, Wigg P, Winkelbauer J, Wolter H, Wu P, Yennello S, Zambon P, Zetta L, Zoric M. The symmetry energy at suprasaturation density and the ASY-EOS experiment at GSI. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201713709002] [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: 11/14/2022] Open
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11
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Koumousidis A, Sofoudis C, Marikakis N, Ciopec A, Adamczyk M, Vakis G, Sinha P. Vulvar melanoma presenting as postmenopausal bleeding: a case report. EUR J GYNAECOL ONCOL 2016; 37:546-548. [PMID: 29894082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Primary melanomas of the vulva are extremely rare, creating obstacles in the differential diagnosis of other epithelial and non-epithelial malignancies. Due to their rarity, there are only approximately 250 cases reported in the current literature. Vulvar melanomas tend to relapse locally, as well as develop locoregional and distant metastasis through lymph node and haematic dissemination. The authors describe a case of an 84-year-old Caucasian female patient, presenting with postmenopausal bleeding, consistent with primary vulvar melanoma cause, which was successfully diagnosed and treated accordingly.
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Wieloch A, Adamczyk M, Barbui M, Blando N, Giuliani G, Hagel K, Kim EJ, Kowalski S, Majka Z, Natowitz J, Pelczar K, Płaneta R, Schmidt K, Sosin Z, Wuenschel S, Zelga K, Zheng H. A novel approach to the island of stability of super-heavy elements search. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611701003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Russotto P, Chartier M, Cozma M, De Filippo E, Le Fèvre A, Gannon S, Gašparić I, Kiš M, Kupny S, Leifels Y, Lemmon R, Li Q, Łukasik J, Marini P, Pawłowski P, Trautmann W, Acosta L, Adamczyk M, Al-Ajlan A, Al-Garawi M, Al-Homaidhi S, Amorini F, Auditore L, Aumann T, Ayyad Y, Baran V, Basrak Z, Bassini R, Benlliure J, Boiano C, Boisjoli M, Boretzky K, Brzychczyk J, Budzanowski A, Cardella G, Cammarata P, Chajecki Z, Chbihi A, Colonna M, Czech B, Di Toro M, Famiano M, Greco V, Grassi L, Guazzoni C, Guazzoni P, Heil M, Heilborn L, Introzzi R, Isobe T, Kezzar K, Krasznahorkay A, Kurz N, La Guidara E, Lanzalone G, Lasko P, Lombardo I, Lynch W, Matthews Z, May L, Minniti T, Mostazo M, Pagano A, Papa M, Pirrone S, Pleskac R, Politi G, Porto F, Reifarth R, Reisdorf W, Riccio F, Rizzo F, Rosato E, Rossi D, Santoro S, Simon H, Skwirczynska I, Sosin Z, Stuhl L, Trifirò A, Trimarchi M, Tsang M, Verde G, Veselsky M, Vigilante M, Wieloch A, Wigg P, Wolter H, Wu P, Yennello S, Zambon P, Zetta L, Zoric M. The ASY-EOS Experiment at GSI. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611707010] [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: 11/14/2022] Open
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14
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Ahmad A, Rahman S, Adamczyk M, Mackey S. Quality of operation note documentation in a plastic surgery tertiary centre: A prospective completed audit cycle. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.434] [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: 11/29/2022]
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15
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Piotrowski T, Gintowt K, Jodda A, Ryczkowski A, Bandyk W, Ba¸k B, Adamczyk M, Skorska M, Kazmierska J, Malicki J. Impact of the Intra- and Inter-observer Variability in the Delineation of Parotid Glands on the Dose Calculation During Head and Neck Helical Tomotherapy. Technol Cancer Res Treat 2015; 14:467-74. [DOI: 10.1177/1533034614600278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- T. Piotrowski
- Department of Medical Physics, Greater Poland Cancer Centre, Poznan,
Poland
- Department of Electroradiology, University of Medical Sciences, Poznan,
Poland
| | - K. Gintowt
- Department of Electroradiology, University of Medical Sciences, Poznan,
Poland
| | - A. Jodda
- Department of Medical Physics, Greater Poland Cancer Centre, Poznan,
Poland
| | - A. Ryczkowski
- Department of Medical Physics, Greater Poland Cancer Centre, Poznan,
Poland
| | - W. Bandyk
- Department of Medical Physics, Greater Poland Cancer Centre, Poznan,
Poland
| | - B. Ba¸k
- 2nd Radiotherapy Department, Greater Poland Cancer Centre, Poznan,
Poland
| | - M. Adamczyk
- Department of Medical Physics, Greater Poland Cancer Centre, Poznan,
Poland
| | - M. Skorska
- Department of Medical Physics, Greater Poland Cancer Centre, Poznan,
Poland
| | - J. Kazmierska
- 2nd Radiotherapy Department, Greater Poland Cancer Centre, Poznan,
Poland
- Department of Electroradiology, University of Medical Sciences, Poznan,
Poland
| | - J. Malicki
- Department of Medical Physics, Greater Poland Cancer Centre, Poznan,
Poland
- Department of Electroradiology, University of Medical Sciences, Poznan,
Poland
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16
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Adamczyk M, Ambrosius U, Lietzenmaier S, Wichniak A, Holsboer F, Friess E. Genetics of rapid eye movement sleep in humans. Transl Psychiatry 2015; 5:e598. [PMID: 26151926 PMCID: PMC5068721 DOI: 10.1038/tp.2015.85] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 03/31/2015] [Accepted: 04/12/2015] [Indexed: 11/09/2022] Open
Abstract
The trait-like nature of electroencephalogram (EEG) is well established. Furthermore, EEG of wake and non-rapid eye movement (non-REM) sleep has been shown to be highly heritable. However, the genetic effects on REM sleep EEG microstructure are as yet unknown. REM sleep is of special interest since animal and human data suggest a connection between REM sleep abnormalities and the pathophysiology of psychiatric and neurological diseases. Here we report the results of a study in monozygotic (MZ) and dizygotic (DZ) twins examining the heritability of REM sleep EEG. We studied the architecture, spectral composition and phasic parameters of REM sleep and identified genetic effects on whole investigated EEG frequency spectrum as well as phasic REM parameters (REM density, REM activity and organization of REMs in bursts). In addition, cluster analysis based on the morphology of the EEG frequency spectrum revealed that the similarity among MZ twins is close to intra-individual stability. The observed strong genetic effects on REM sleep characteristics establish REM sleep as an important source of endophenotypes for psychiatric and neurological diseases.
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Affiliation(s)
- M Adamczyk
- Max Planck Institute of Psychiatry, Munich, Germany,Max Planck Institute of Psychiatry, Day Clinic for Psychiatry and Psychotherapy, Schleissheimerstrasse 267, 80809 Munich, Germany. E-mail:
| | - U Ambrosius
- Max Planck Institute of Psychiatry, Munich, Germany
| | | | - A Wichniak
- Max Planck Institute of Psychiatry, Munich, Germany
| | - F Holsboer
- Max Planck Institute of Psychiatry, Munich, Germany
| | - E Friess
- Max Planck Institute of Psychiatry, Munich, Germany
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17
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Adamczyk M, Piotrowski T, Adamczyk S. SU-E-J-175: Comparison of the Treatment Reproducibility of Tumors Affected by Breathing Motion. Med Phys 2015. [DOI: 10.1118/1.4924260] [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: 11/07/2022] Open
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18
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Kruszyna M, Adamczyk M. SU-E-T-634: Pre-Verification of FFF Prostate VMAT Plans with Gamma Method and DVHs Reconstructed Based On Measurements with 2D-ARRAY (PTW 1500) and OCTAVIUS 4D. Med Phys 2015. [DOI: 10.1118/1.4924997] [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: 11/07/2022] Open
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19
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Adamczyk M, Piotrowski T, Adamczyk S. PO-0835: Modelling the dosimetric effects of tumor motion due to respiration. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40827-8] [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: 10/23/2022]
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20
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Piotrowski T, Ryczkowski A, Adamczyk M, Siwa M, Jodda A. PO-0942: Impact of the lenses position uncertainty on the dose received during head and neck radiotherapy. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40934-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: 10/23/2022]
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21
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Czajka E, Jackowiak W, Dura J, Skrobala A, Adamczyk M, Adamczyk S, Milecki P. EP-1662: The imaging dose and number of images taken during the CyberKnifeÆ treatment for brain and prostate tumors. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41654-8] [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: 10/23/2022]
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22
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Skrobala A, Adamczyk M, Adamczyk S, Dura J, Jackowiak W, Czajka E, Milecki P. EP-1580: Improving plan quality by standardization prostate patient's preparation and planning parameters for CyberKnife. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41572-5] [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: 11/28/2022]
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Abstract
Summary
Parasitic infections are widespread among exotic lizards and cause serious problems in both private captive breeding and trade networks. Among 168 lizards obtained from captive breeding (Zoological Garden in Wrocław and private owners) and trade (pet shops and wholesale) the total prevalence of endoparasites was 42.35 %. We detected species of Protozoa, Cestoda, Trematoda - Digenea and Nematoda as well as pseudoparasites. The prevalence of endoparasites was higher in the reptiles obtained from captive breeding (59.5 %) than in those from trade network, however the parasite species spectrum was wider in the animals form pet shops and wholesales.
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Affiliation(s)
- A. Okulewicz
- Department of Parasitology, Institute of Genetics and Microbiology, Wrocław University, Przybyszewskiego 63/77, 51-148 Wrocław, Poland
| | - M. Kaźmierczak
- Department of Vertebrate Evolutionary Biology and Conservation, Institute of Environmental Biology, Wrocław University, Sienkiewicza 21, 50-335 Wrocław, Poland
| | - J. Hildebrand
- Department of Parasitology, Institute of Genetics and Microbiology, Wrocław University, Przybyszewskiego 63/77, 51-148 Wrocław, Poland
| | - M. Adamczyk
- Department of Parasitology, Institute of Genetics and Microbiology, Wrocław University, Przybyszewskiego 63/77, 51-148 Wrocław, Poland
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24
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Russotto P, Chartier M, Cozma M, De Filippo E, Le Fèvre A, Gannon S, Gašparić I, Kiš M, Kupny S, Leifels Y, Lemmon R, Li Q, Łukasik J, Marini P, Pawłowski P, Trautmann W, Acosta L, Adamczyk M, Al-Ajlan A, Al-Garawi M, Al-Homaidhi S, Amorini F, Auditore L, Aumann T, Ayyad Y, Baran V, Basrak Z, Bassini R, Benlliure J, Boiano C, Boisjoli M, Boretzky K, Brzychczyk J, Budzanowski A, Cardella G, Cammarata P, Chajecki Z, Chbihi A, Colonna M, Czech B, Di Toro M, Famiano M, Greco V, Grassi L, Guazzoni C, Guazzoni P, Heil M, Heilborn L, Introzzi R, Isobe T, Kezzar K, Krasznahorkay A, Kurz N, La Guidara E, Lanzalone G, Lasko P, Lombardo I, Lynch W, Matthews Z, May L, Minniti T, Mostazo M, Pagano A, Papa M, Pirrone S, Pleskac R, Politi G, Porto F, Reifarth R, Reisdorf W, Riccio F, Rizzo F, Rosato E, Rossi D, Santoro S, Simon H, Skwirczynska I, Sosin Z, Stuhl L, Trifirò A, Trimarchi M, Tsang M, Verde G, Veselsky M, Vigilante M, Wieloch A, Wigg P, Wolter H, Wu P, Yennello S, Zambon P, Zetta L, Zoric M. The ASY-EOS experiment at GSI: Constraining the symmetry energy at supra-saturation densities. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158800022] [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: 11/14/2022] Open
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25
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Łukasik J, Pawłowski P, Czech B, Skwirczyńska I, Brzychczyk J, Adamczyk M, Kupny S, Lasko P, Sosin Z, Wieloch A, Kiš M, Leifels Y, Trautmann W. Background reduction in long CsI(Tl) crystals. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158801017] [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: 11/14/2022] Open
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26
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Adamczyk M, Kamiński M, Sitnik R, Bogdan A, Karaszewski M. Effect of temperature on calibration quality of structured-light three-dimensional scanners. Appl Opt 2014; 53:5154-5162. [PMID: 25320924 DOI: 10.1364/ao.53.005154] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 07/10/2014] [Indexed: 06/04/2023]
Abstract
This paper presents the outcome of research into the effects of ambient temperature changes on structured-light three-dimensional (3D) scanners. The tests were conducted in a thermal chamber and consisted of a comparison of the 3D measurement of a special reference unit (made of a carbon composite) performed at different temperatures, with measurements performed at the calibration temperature. A contact measuring arm with temperature compensation was used as a reference. Based on the results of these experiments, we propose a method that allows us to extend the existing scanner calibration method by using a temperature-correction procedure that is based on linear and nonlinear mathematical models. An exemplary application of this procedure has shown that the range of temperatures in which scanner accuracy is within declared limits can be increased 11-fold.
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27
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Piotrowski T, Gintowt K, Jodda A, Ryczkowski A, Bandyk W, Ba B, Adamczyk M, Skorska M, Kazmierska J, Malicki J. Impact of the Intra- and Inter-observer Variability in the Delineation of Parotid Glands on the Dose Calculation During Head and Neck Helical Tomotherapy. Technol Cancer Res Treat 2014; 14:tcrtexpress.201. [PMID: 24502554 PMCID: PMC4639906 DOI: 10.7785/tcrtexpress.2013.600278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 01/02/2014] [Accepted: 01/16/2014] [Indexed: 12/25/2022] Open
Abstract
The intra- and inter-observer variability in delineation of the parotids on the kilo-voltage computed tomography (kVCT) and mega-voltage computed tomography (MVCT) were examined to establish their impact on the dose calculation during adaptive head and neck helical tomotherapy (HT). Three observers delineated left and right parotids for ten randomly selected patients with oropharynx cancer treated on HT. The pre-treatment kVCT and the MVCT from the first fraction of irradiation were selected to delineation. The delineation procedure was repeated three times by each observer. The parotids were delineated according to the institutional protocol. The analyses included intra-observer reproducibility and inter-structure, -observer and -modality variability of the volume and dose. The differences between the left and right parotid outlines were not statistically significant (p > 0.3). The reproducibility of the delineation was confirmed for each observer on the kVCT (p > 0.2) and on the MVCT (p > 0.1). The inter-observer variability of the outlines was significant (p < 0.001) as well as the inter-modality variability (p < 0.006). The parotids delineated on the MVCT were 10% smaller than on the kVCT. The inter-observer variability of the parotids delineation did not affect the average dose (p = 0.096 on the kVCT and p = 0.176 on the MVCT). The dose calculated on the MVCT was higher by 3.3% than dose from the kVCT (p = 0.009). Usage of the institutional protocols for the parotids delineation reduces intra-observer variability and increases reproducibility of the outlines. These protocols do not eliminate delineation differences between the observers, but these differences are not clinically significant and do not affect average doses in the parotids. The volumes of the parotids delineated on the MVCT are smaller than on the kVCT, which affects the differences in the calculated doses.
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Affiliation(s)
- T Piotrowski
- Department of Medical Physics, Greater Poland Cancer Centre, Poznan, Poland.
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Adamczyk M, Piotrowski T. EP-1575: Analysis of RapidArc optimization strategies in the treatment of prostate cancer. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31693-5] [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: 11/15/2022]
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Jodda A, Piotrowski T, Ryczkowski A, Adamczyk M, Skorska M, Bak B, Kazmierska J, Bandyk W, Malicki J. EP-1696: Impact of the CT scanning modalities on the delineation of parotid glands and doses contained on it. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31814-4] [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: 10/23/2022]
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Pawalowski B, Adamczyk S, Adamczyk M. EP-1740: The impact of the CT scanner calibration curve on the calculation of dose distribution. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31858-2] [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: 10/23/2022]
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Adamczyk S, Skrobala A, Adamczyk M, Pawalowski B. EP-1523: Patient-specific QA for CyberKnife plans using 2D ion chamber array. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31641-8] [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: 10/23/2022]
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Russotto P, Chartier M, Cozma M, De Filippo E, Le Fèvre A, Gannon S, Gašparić I, Kiš M, Kupny S, Leifels Y, Lemmon R, Li Q, Łukasik J, Marini P, Pawłowski P, Santoro S, Trautmann W, Veselsky M, Acosta L, Adamczyk M, Al-Ajlan A, Al-Garawi M, Al-Homaidhi S, Amorini F, Auditore L, Aumann T, Ayyad Y, Baran V, Basrak Z, Bassini R, Benlliure J, Boiano C, Boisjoli M, Boretzky K, Brzychczyk J, Budzanowski A, Cardella G, Cammarata P, Chajecki Z, Chbihi A, Colonna M, Czech B, Di Toro M, Famiano M, Greco V, Grassi L, Guazzoni C, Guazzoni P, Heil M, Heilborn L, Introzzi R, Isobe T, Kezzar K, Krasznahorkay A, Kurz N, La Guidara E, Lanzalone G, Lasko P, Lombardo I, Lynch W, Matthews Z, May L, Minniti T, Mostazo M, Pagano A, Papa M, Pirrone S, Pleskac R, Politi G, Porto F, Reifarth R, Reisdorf W, Riccio F, Rizzo F, Rosato E, Rossi D, Simon H, Skwirczynska I, Sosin Z, Stuhl L, Trifirò A, Trimarchi M, Tsang M, Verde G, Vigilante M, Wieloch A, Wigg P, Wolter H, Wu P, Yennello S, Zambon P, Zetta L, Zoric M. The ASY-EOS experiment at GSI: investigating symmetry energy at supra-saturation densities. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603074] [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: 11/14/2022] Open
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Piotrowski T, Czajka E, Bak B, Kazmierska J, Skorska M, Ryczkowski A, Adamczyk M, Jodda A. Tomotherapy: implications on daily workload and scheduling patients based on three years' institutional experience. Technol Cancer Res Treat 2013; 13:233-42. [PMID: 24066951 DOI: 10.7785/tcrt.2012.500374] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Helical tomotherapy (HT) was introduced at the Greater Poland Cancer Centre (GPCC) in April 2009. Retrospective analysis included data from the treatments performed for the first 656 patients treated with HT between May 2009 and May 2012 at the GPCC. In order to evaluate the implications on daily workload and scheduling of patients, stepwise regression and time analysis for each component of the overall treatment time, such as positioning, imaging, registration, and irradiation were performed. A detailed analysis included: (1) learning curves and optimized time needed for positioning and registration; (2) relation between irradiation time and parameters used for plan creation; and (3) average time of daily imaging. The irradiation component has the highest influence on the overall treatment time (R = 0.911). The lowest influence was observed for the imaging (R = 0.670). The learning curve for positioning was 7 months while the reduction of the average daily time needed for registration was observed even after two years. The irradiation time strongly depends on the planning parameters. Changing the pitch from 0.215 to 0.287 for pelvic cancer cases decreased the average daily beam-on time per patient by about 2 minutes. Similar changes for head and neck reduced this time by 1.3 minutes. The limitation in the usage of 1 cm field width only for complex cases, lower than 10 cm in the cranio-caudal direction, reduced the beam-on time per patient by 2 minutes. The average overall treatment time decreased from 21.5 minutes per patient in the first year of the HT usage to 13.8 minutes per patient in current practice. Our current practice shows that for a group of patients including mainly those with pelvis and head and neck cancers, the HT treatment takes approximately 15 minutes per patient allowing 40 patients to be treated within 10 hours.
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Affiliation(s)
- T Piotrowski
- Department of Medical Physics, University of Medical Sciences, Poznan, Poland.
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Pawlowski M, Gazea M, Adamczyk M, Wollweber B, Holsboer F, Steiger A, Dresler M. Cordance as a biomarker in sleep-EEG for treatment response in depression. Pharmacopsychiatry 2013. [DOI: 10.1055/s-0033-1353284] [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: 10/26/2022]
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Schuessler P, Adamczyk M, Beitinger P, Beitinger M, Cordeiro S, Mattern C, Uhr M, Yassouridis A, Friess E, Steiger A. Effects of intranasal progesterone on sleep EEG and hormone secretion in menopauseal women. Pharmacopsychiatry 2013. [DOI: 10.1055/s-0033-1353317] [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: 10/26/2022]
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Adamczyk S, Adamczyk M, Piotrowski T. SU-E-T-223: Dose Distribution Verification in a Moving Target Using Moving Platform and 2D Diode Array. Med Phys 2013. [DOI: 10.1118/1.4814658] [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: 11/07/2022] Open
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Łukasik J, Pawłowski P, Budzanowski A, Czech B, Skwirczyńska I, Brzychczyk J, Adamczyk M, Kupny S, Lasko P, Sosin Z, Wieloch A, Kiš M, Leifels Y, Trautmann W. KRATTA, a triple telescope array for charged reaction products. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123100032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Adamczyk S, Adamczyk M. EP-1451 DOSE DISTRIBUTION VERIFICATION IN A MOVING TARGET USING 2D DIODE ARRAY. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71784-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: 10/28/2022]
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Pawalowski B, Mikolajczyk K, Adamczyk S, Skrobala A, Adamczyk M. PO-0821 INFLUENCE OF IMRT PLAN OPTIMIZATION PARAMETERS ON DOSIMETRIC VERIFICATION RESULTS. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71154-4] [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: 10/28/2022]
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Orzechowski K, Kosmowska M, Adamczyk M. Electric permittivity anomaly close to the critical consolute point of a nitrobenzene + octane liquid mixture. J Phys Chem B 2012; 116:2492-7. [PMID: 22276572 DOI: 10.1021/jp2098203] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Electric permittivity and density were measured in a nitrobenzene and octane mixture in the vicinity of the upper critical consolute point. Measurements were conducted in the one-phase region, at the critical concentration. The possibility of stirring in the course of measurements allowed us to check if the density and concentration gradients had any influence on the obtained results. No signs of the presence of the gradients mentioned above were found. Using the data obtained in the reported measurements, different methods of the fitting of the equation describing the permittivity anomaly were tested. The calculation of a reliable value of the critical amplitude, used to estimate the critical temperature shift under the influence of the electric field, was of particular interest. The derivative (∂T(c)/∂E(2)) was found to be (-3.9 ± 0.3) × 10(-16) K m(2) V(-2).
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Affiliation(s)
- K Orzechowski
- Faculty of Chemistry, University of Wroclaw, Joliot-Curie 14, 50-383 Wroclaw, Poland.
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Russotto P, Acosta L, Adamczyk M, Al-Ajlan A, Al-Garawi M, Al-Homaidhi S, Amorini F, Auditore L, Aumann T, Ayyad Y, Baran V, Basrak Z, Benlliure J, Boiano C, Boisjoli C, Boretzky K, Brzychczyk J, Budzanowski A, Cardella G, Cammarata P, Cavallaro S, Chajecki Z, Chartier M, Chbihi A, Colonna M, Czech B, De Filippo E, Di Toro M, Famiano M, Le Fevre A, Gašsparić A, Geraci E, Grassi L, Greco V, Guazzoni C, Guazzoni P, Heil M, Heilborn L, Introzzi R, Isobe T, Kezzar K, Kiš M, Kupny S, Kurz N, La Guidara E, Lanzalone G, Lasko P, Leifels Y, Lemmon R, Li Q, Lombardo I, Loria D, Lukasik J, Lynch W, Marini P, Matthews Z, May L, Minniti T, Mostazo M, Pagano A, Papa M, Pawlowski P, Petrovici M, Pirrone S, Politi G, Porto F, Reifarth R, Reisdorf W, Riccio F, Rizzo F, Rosato E, Rossi D, Santoro S, Simon H, Skwirczynska I, Sosin Z, Trautmann W, Trifirò A, Trimarchi M, Tsang B, Veselsky M, Verde G, Vigilante M, Wieloch A, Wigg P, Wilczynski J, Wolter H, Wu P, Yennello S, Zambon P, Zetta L, Zoric M. ASY-EOS experiment at GSI. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123100012] [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: 11/15/2022] Open
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Adamczyk M, Fulda S, Pawlowski M, Steiger A, Holsboer F, Friess E. Robust and stable automatic detection of rapid-eye movements in REM sleep. Pharmacopsychiatry 2011. [DOI: 10.1055/s-0031-1292443] [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: 10/17/2022]
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Adamczyk M, Piotrowski T, Adamiak E. 1200 poster IS THERE A POSSIBILITY TO MAKE A GEOGRAPHICAL MISS WHILE CBCT PROSTATE BASED COUCH SHIFTS? Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71322-6] [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: 11/16/2022]
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Szlinder-Richert J, Usydus Z, Wyszyński M, Adamczyk M. Variation in fat content and fatty-acid composition of the Baltic herring Clupea harengus membras. J Fish Biol 2010; 77:585-599. [PMID: 20701642 DOI: 10.1111/j.1095-8649.2010.02696.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The fat content and fatty-acid profiles of herring, Clupea harengus membras, from the southern Baltic Sea varied depending on when (fishing season) and where (fishing grounds) the fish were caught as well as on their size and sex. The fat, protein and dry matter content and the fatty-acid profiles were assayed in C. h. membras muscle tissue. The changes observed in fatty-acid profiles were determined by factors such as specimen mass and fat content, which, in turn, depended on fishing season. This is explained by dietary differences between juvenile and older fish. Gonad maturation and spawning in the latter are also factors. The study results provide confirmation of the hypothesis that polyunsaturated fatty acids (PUFA), in particular docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), play vital roles in the sexual maturation of C. h. membras.
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Affiliation(s)
- J Szlinder-Richert
- Sea Fisheries Institute in Gdynia, Department of Food and Environment Chemistry, 1 Kołłataja Str., 81-332 Gdynia, Poland.
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Gołebiewski M, Kern-Zdanowicz I, Zienkiewicz M, Adamczyk M, Zylinska J, Baraniak A, Gniadkowski M, Bardowski J, Cegłowski P. Complete nucleotide sequence of the pCTX-M3 plasmid and its involvement in spread of the extended-spectrum beta-lactamase gene blaCTX-M-3. Antimicrob Agents Chemother 2007; 51:3789-95. [PMID: 17698626 PMCID: PMC2151408 DOI: 10.1128/aac.00457-07] [Citation(s) in RCA: 114] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Here we report the nucleotide sequence of pCTX-M3, a highly conjugative plasmid that is responsible for the extensive spread of the gene coding for the CTX-M-3 extended-spectrum beta-lactamase in clinical populations of the family Enterobacteriaceae in Poland. The plasmid belongs to the IncL/M incompatibility group, is 89,468 bp in size, and carries 103 putative genes. Besides bla(CTX-M-3), it also bears the bla(TEM-1), aacC2, and armA genes, as well as integronic aadA2, dfrA12, and sul1, which altogether confer resistance to the majority of beta-lactams and aminoglycosides and to trimethoprim-sulfamethoxazole. The conjugal transfer genes are organized in two blocks, tra and trb, separated by a spacer sequence where almost all antibiotic resistance genes and multiple mobile genetic elements are located. Only bla(CTX-M-3), accompanied by an ISEcp1 element, is placed separately, in a DNA fragment previously identified as a fragment of the Kluyvera ascorbata chromosome. On the basis of sequence analysis, we speculate that pCTX-M3 might have arisen from plasmid pEL60 from plant pathogen Erwinia amylovora by acquiring mobile elements with resistance genes. This suggests that plasmids of environmental bacterial strains could be the source of those plasmids now observed in bacteria pathogenic for humans.
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Affiliation(s)
- M Gołebiewski
- Department of Microbial Biochemistry, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
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Adamczyk M, Akireddy SR, Reddy RE. Enantioselective synthesis of (2-pyridyl)alanines via catalytic hydrogenation and application to the synthesis of L-azatyrosine. Org Lett 2001; 3:3157-9. [PMID: 11574019 DOI: 10.1021/ol016455q] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [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
[reaction: see text] A novel method for the synthesis of (2-pyridyl)alanines 2a-b was developed by converting (2-pyridyl)dehydroamino acid derivatives 1a-b to the corresponding N-oxides 3a-b followed by asymmetric hydrogenation using (R,R)-[Rh(Et-DUPHOS)(COD)]BF(4) [(R,R)-6] catalyst and subsequent N-oxide reduction in 80-83% ee. This methodology was applied to the total synthesis of L-azatyrosine [(+)-12], an antitumor antibiotic, starting from (5-benzyloxy)-2-pyridylmethanol (7), in >96% enantiomeric purity.
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Affiliation(s)
- M Adamczyk
- Department of Chemistry (9 NM), Building AP20, Diagnostics Division, Abbott Laboratories, 100 Abbott Park Road, Abbott Park, Illinois 60064-6016, USA.
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Adamczyk M, Moore JA, Shreder K. Quenching of biotinylated aequorin bioluminescence by dye-labeled avidin conjugates: application to homogeneous bioluminescence resonance energy transfer assays. Org Lett 2001; 3:1797-800. [PMID: 11405714 DOI: 10.1021/ol015843p] [Citation(s) in RCA: 21] [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: 11/29/2022]
Abstract
[see reaction]. Avidin conjugates containing the covalently attached dyes QSY-7 and dabcyl were prepared and shown to quench the bioluminescence of biotinylated aequorin. Quenching efficiency was shown to be dependent on both the label-to-avidin ratio and the concentration of the avidin conjugate. These properties were exploited to develop a homogeneous bioluminescence resonance energy transfer (BRET) assay for biotin.
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Affiliation(s)
- M Adamczyk
- Department of Chemistry, Diagnostics Division, Abbott Laboratories, 100 Abbott Park Road, Abbott Park, Illinois 60064-6016, USA.
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Abstract
OBJECTIVES AND HYPOTHESIS Vertigo, the cause of disability in many patients with Ménière's disease, may be the result of the effects of endolymphatic hydrops on the semicircular canals. We hypothesize that intractable vertigo may be controlled by destruction of the semicircular canal neuroepithelium using visible light lasers without the need for extensive fenestration of the bony labyrinth. This study was designed to assess the cochlear effects of potassium titanyl phosphate (KTP) laser-assisted triple semicircular canal ablation (TSCA) in endolymphatic hydrops. STUDY DESIGN Randomized, prospective, and controlled. METHODS Forty-one adult guinea pigs underwent either a unilateral endolymphatic duct occlusion to induce hydrops or a sham procedure. Ten weeks after induction of the hydrops, a KTP laser-assisted TSCA or a sham surgery was performed. RESULTS Electrocochleographic thresholds to clicks and tone-bursts (2-20 kHz) did not change significantly up to 4 weeks after TSCA in hydropic ears. Cross-sectional histology confirmed the presence of hydrops and the ablation of the semicircular canals. Cochlear whole-mounts for hair cell counts showed no significant loss of outer or inner hair cells in hydropic ears treated with TSCA. CONCLUSION KTP laser-assisted TSCA can be performed in the guinea pig model of endolymphatic hydrops without significant loss of hearing. Evaluation of this technique may be warranted in patients with intractable Ménière's disease.
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Affiliation(s)
- M Adamczyk
- Department of Otolaryngology, University of Florida, Gainesville, Florida 32610-0264, USA
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Adamczyk M, Mattingly PG, Moore JA, Pan Y, Shreder K, Yu Z. Design of Acridinium-9-carboxamides and Anti-acridinium Antibodies for Chemiluminescent Signal Enhancement. Bioconjug Chem 2001; 12:329-31. [PMID: 11353528 DOI: 10.1021/bc000152j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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 system of signal enhancement is presented in which every labeled antibody is capable of generating a signal. Three chemiluminescent acridinium-9-carboxamide haptens (1, 2, and 3) which incorporated differences in charge and location of the linker were designed and synthesized. Anti-acridinium polyclonal antibodies for each hapten were screened using surface plasmon resonance instrumentation to determine specificity for each hapten. Anti-acridinium 2 antibodies were found to be non-cross-reactive to acridinium 1. This property was exploited to design secondary antibody conjugates which would bind to primary antibodies labeled with 2 yet could still be labeled with the structurally similar acridinium 1. Consequently, both layers contributed to the overall chemiluminescent signal. This format is an advance over other signal amplification formats which employ non-signal-generating, labeled antibodies to construct multilayered systems.
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Affiliation(s)
- M Adamczyk
- Department of Chemistry (9NM), Abbott Diagnostics Division, Abbott Laboratories, Abbott Park, Illinois 60064-6016, USA
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