Search

Your search keyword '"Kalfayan, P."' showing total 72 results
Start Over Author "Kalfayan, P."
72 results on '"Kalfayan, P."'

1. Colorectal cancer incidences in Lynch syndrome: a comparison of results from the prospective lynch syndrome database and the international mismatch repair consortium

Author

Pål Møller, Toni Seppälä, James G. Dowty, Saskia Haupt, Mev Dominguez-Valentin, Lone Sunde, Inge Bernstein, Christoph Engel, Stefan Aretz, Maartje Nielsen, Gabriel Capella, Dafydd Gareth Evans, John Burn, Elke Holinski-Feder, Lucio Bertario, Bernardo Bonanni, Annika Lindblom, Zohar Levi, Finlay Macrae, Ingrid Winship, John-Paul Plazzer, Rolf Sijmons, Luigi Laghi, Adriana Della Valle, Karl Heinimann, Elizabeth Half, Francisco Lopez-Koestner, Karin Alvarez-Valenzuela, Rodney J. Scott, Lior Katz, Ido Laish, Elez Vainer, Carlos Alberto Vaccaro, Dirce Maria Carraro, Nathan Gluck, Naim Abu-Freha, Aine Stakelum, Rory Kennelly, Des Winter, Benedito Mauro Rossi, Marc Greenblatt, Mabel Bohorquez, Harsh Sheth, Maria Grazia Tibiletti, Leonardo S. Lino-Silva, Karoline Horisberger, Carmen Portenkirchner, Ivana Nascimento, Norma Teresa Rossi, Leandro Apolinário da Silva, Huw Thomas, Attila Zaránd, Jukka-Pekka Mecklin, Kirsi Pylvänäinen, Laura Renkonen-Sinisalo, Anna Lepisto, Päivi Peltomäki, Christina Therkildsen, Lars Joachim Lindberg, Ole Thorlacius-Ussing, Magnus von Knebel Doeberitz, Markus Loeffler, Nils Rahner, Verena Steinke-Lange, Wolff Schmiegel, Deepak Vangala, Claudia Perne, Robert Hüneburg, Aída Falcón de Vargas, Andrew Latchford, Anne-Marie Gerdes, Ann-Sofie Backman, Carmen Guillén-Ponce, Carrie Snyder, Charlotte K. Lautrup, David Amor, Edenir Palmero, Elena Stoffel, Floor Duijkers, Michael J. Hall, Heather Hampel, Heinric Williams, Henrik Okkels, Jan Lubiński, Jeanette Reece, Joanne Ngeow, Jose G. Guillem, Julie Arnold, Karin Wadt, Kevin Monahan, Leigha Senter, Lene J. Rasmussen, Liselotte P. van Hest, Luigi Ricciardiello, Maija R. J. Kohonen-Corish, Marjolijn J. L. Ligtenberg, Melissa Southey, Melyssa Aronson, Mohd N. Zahary, N. Jewel Samadder, Nicola Poplawski, Nicoline Hoogerbrugge, Patrick J. Morrison, Paul James, Grant Lee, Rakefet Chen-Shtoyerman, Ravindran Ankathil, Rish Pai, Robyn Ward, Susan Parry, Tadeusz Dębniak, Thomas John, Thomas van Overeem Hansen, Trinidad Caldés, Tatsuro Yamaguchi, Verónica Barca-Tierno, Pilar Garre, Giulia Martina Cavestro, Jürgen Weitz, Silke Redler, Reinhard Büttner, Vincent Heuveline, John L. Hopper, Aung Ko Win, Noralane Lindor, Steven Gallinger, Loïc Le Marchand, Polly A. Newcomb, Jane Figueiredo, Daniel D. Buchanan, Stephen N. Thibodeau, Sanne W. ten Broeke, Eivind Hovig, Sigve Nakken, Marta Pineda, Nuria Dueñas, Joan Brunet, Kate Green, Fiona Lalloo, Katie Newton, Emma J. Crosbie, Miriam Mints, Douglas Tjandra, Florencia Neffa, Patricia Esperon, Revital Kariv, Guy Rosner, Walter Hernán Pavicic, Pablo Kalfayan, Giovana Tardin Torrezan, Thiago Bassaneze, Claudia Martin, Gabriela Moslein, Aysel Ahadova, Matthias Kloor, Julian R. Sampson, Mark A. Jenkins, and The European Hereditary Tumour Group (EHTG) and the International Mismatch Repair Consortium (IMRC)

Subjects
Lynch Syndrome, Epidemiology, Prevention, Penetrance, Colorectal cancer, Segregation analysis, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282, Genetics, QH426-470
Abstract

Abstract Objective To compare colorectal cancer (CRC) incidences in carriers of pathogenic variants of the MMR genes in the PLSD and IMRC cohorts, of which only the former included mandatory colonoscopy surveillance for all participants. Methods CRC incidences were calculated in an intervention group comprising a cohort of confirmed carriers of pathogenic or likely pathogenic variants in mismatch repair genes (path_MMR) followed prospectively by the Prospective Lynch Syndrome Database (PLSD). All had colonoscopy surveillance, with polypectomy when polyps were identified. Comparison was made with a retrospective cohort reported by the International Mismatch Repair Consortium (IMRC). This comprised confirmed and inferred path_MMR carriers who were first- or second-degree relatives of Lynch syndrome probands. Results In the PLSD, 8,153 subjects had follow-up colonoscopy surveillance for a total of 67,604 years and 578 carriers had CRC diagnosed. Average cumulative incidences of CRC in path_MLH1 carriers at 70 years of age were 52% in males and 41% in females; for path_MSH2 50% and 39%; for path_MSH6 13% and 17% and for path_PMS2 11% and 8%. In contrast, in the IMRC cohort, corresponding cumulative incidences were 40% and 27%; 34% and 23%; 16% and 8% and 7% and 6%. Comparing just the European carriers in the two series gave similar findings. Numbers in the PLSD series did not allow comparisons of carriers from other continents separately. Cumulative incidences at 25 years were < 1% in all retrospective groups. Conclusions Prospectively observed CRC incidences (PLSD) in path_MLH1 and path_MSH2 carriers undergoing colonoscopy surveillance and polypectomy were higher than in the retrospective (IMRC) series, and were not reduced in path_MSH6 carriers. These findings were the opposite to those expected. CRC point incidence before 50 years of age was reduced in path_PMS2 carriers subjected to colonoscopy, but not significantly so.

Published
2022
Full Text
View/download PDF

2. Hereditary Renal Cell Carcinoma: Is Age an Independent Criterion for Genetic Testing? A Large Cohort from a Latin America Referral Center

Author

Tomás Carminatti, Patricio Aitor García Marchiñena, Ignacio Pablo Tobia González, Valeria de Miguel, Marcelo Martín Serra, Pablo Germán Kalfayan, and Alberto Manuel Jurado

Subjects
Hereditary renal cell carcinoma, genetic testing, early-onset renal cell carcinoma, VHL, Age criteria in Hereditary renal cell carcinoma, Diseases of the genitourinary system. Urology, RC870-923, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Although age younger than 46 years has been an independent criterion for genetic testing in hereditary renal cell carcinoma (hRCC), there is a lack of evidence in the literature. This study aims to analyze whether a 46-year-old cut-off should be considered an independent genetic testing criterion and to elucidate risk factors predicting a positive genetic test. Observational study from January 2010 to December 2021. All patients under 46 years with a non-metastatic kidney mass and surgical indication were included. We assume patients who relapse in the first 5 years of follow-up could have a positive genetic test. As risk factors for relapse, ergo positive genetic test, we consider those patients who presented multifocal, bilateral, or previous renal tumor. Of 2,232 nephrectomies for kidney cancer, 301 patients met the inclusion criteria. The median follow-up was 60 months (IQR 29-101). The estimated five-year RFS was 94.4% (95% CI 91.3-97.5). Tumor size, previous renal tumor, multifocality, bilaterality, and pT3 or pT4 stage were independent recurrence risk factors. Genetic testing was performed on 24 patients. 10 patients had pathogenic variants in the test, 8 of which recurred during their life. 46-year-old cut-off has shown low performance in genetic testing. Therefore, we recommend that it be considered only if other hRCC risk criteria exist. Multifocality, bilaterality, and previous renal tumor could predict a positive genetic test.

Published
2023

3. Colorectal cancer incidences in Lynch syndrome: a comparison of results from the prospective lynch syndrome database and the international mismatch repair consortium

Author

Møller, Pål, Seppälä, Toni, Dowty, James G., Haupt, Saskia, Dominguez-Valentin, Mev, Sunde, Lone, Bernstein, Inge, Engel, Christoph, Aretz, Stefan, Nielsen, Maartje, Capella, Gabriel, Evans, Dafydd Gareth, Burn, John, Holinski-Feder, Elke, Bertario, Lucio, Bonanni, Bernardo, Lindblom, Annika, Levi, Zohar, Macrae, Finlay, Winship, Ingrid, Plazzer, John-Paul, Sijmons, Rolf, Laghi, Luigi, Valle, Adriana Della, Heinimann, Karl, Half, Elizabeth, Lopez-Koestner, Francisco, Alvarez-Valenzuela, Karin, Scott, Rodney J., Katz, Lior, Laish, Ido, Vainer, Elez, Vaccaro, Carlos Alberto, Carraro, Dirce Maria, Gluck, Nathan, Abu-Freha, Naim, Stakelum, Aine, Kennelly, Rory, Winter, Des, Rossi, Benedito Mauro, Greenblatt, Marc, Bohorquez, Mabel, Sheth, Harsh, Tibiletti, Maria Grazia, Lino-Silva, Leonardo S., Horisberger, Karoline, Portenkirchner, Carmen, Nascimento, Ivana, Rossi, Norma Teresa, da Silva, Leandro Apolinário, Thomas, Huw, Zaránd, Attila, Mecklin, Jukka-Pekka, Pylvänäinen, Kirsi, Renkonen-Sinisalo, Laura, Lepisto, Anna, Peltomäki, Päivi, Therkildsen, Christina, Lindberg, Lars Joachim, Thorlacius-Ussing, Ole, von Knebel Doeberitz, Magnus, Loeffler, Markus, Rahner, Nils, Steinke-Lange, Verena, Schmiegel, Wolff, Vangala, Deepak, Perne, Claudia, Hüneburg, Robert, de Vargas, Aída Falcón, Latchford, Andrew, Gerdes, Anne-Marie, Backman, Ann-Sofie, Guillén-Ponce, Carmen, Snyder, Carrie, Lautrup, Charlotte K., Amor, David, Palmero, Edenir, Stoffel, Elena, Duijkers, Floor, Hall, Michael J., Hampel, Heather, Williams, Heinric, Okkels, Henrik, Lubiński, Jan, Reece, Jeanette, Ngeow, Joanne, Guillem, Jose G., Arnold, Julie, Wadt, Karin, Monahan, Kevin, Senter, Leigha, Rasmussen, Lene J., van Hest, Liselotte P., Ricciardiello, Luigi, Kohonen-Corish, Maija R. J., Ligtenberg, Marjolijn J. L., Southey, Melissa, Aronson, Melyssa, Zahary, Mohd N., Samadder, N. Jewel, Poplawski, Nicola, Hoogerbrugge, Nicoline, Morrison, Patrick J., James, Paul, Lee, Grant, Chen-Shtoyerman, Rakefet, Ankathil, Ravindran, Pai, Rish, Ward, Robyn, Parry, Susan, Dębniak, Tadeusz, John, Thomas, van Overeem Hansen, Thomas, Caldés, Trinidad, Yamaguchi, Tatsuro, Barca-Tierno, Verónica, Garre, Pilar, Cavestro, Giulia Martina, Weitz, Jürgen, Redler, Silke, Büttner, Reinhard, Heuveline, Vincent, Hopper, John L., Win, Aung Ko, Lindor, Noralane, Gallinger, Steven, Le Marchand, Loïc, Newcomb, Polly A., Figueiredo, Jane, Buchanan, Daniel D., Thibodeau, Stephen N., ten Broeke, Sanne W., Hovig, Eivind, Nakken, Sigve, Pineda, Marta, Dueñas, Nuria, Brunet, Joan, Green, Kate, Lalloo, Fiona, Newton, Katie, Crosbie, Emma J., Mints, Miriam, Tjandra, Douglas, Neffa, Florencia, Esperon, Patricia, Kariv, Revital, Rosner, Guy, Pavicic, Walter Hernán, Kalfayan, Pablo, Torrezan, Giovana Tardin, Bassaneze, Thiago, Martin, Claudia, Moslein, Gabriela, Ahadova, Aysel, Kloor, Matthias, Sampson, Julian R., and Jenkins, Mark A.

Published
2022
Full Text
View/download PDF

4. Risk-reducing hysterectomy and bilateral salpingo-oophorectomy in female heterozygotes of pathogenic mismatch repair variants: a Prospective Lynch Syndrome Database report

Author

Dominguez-Valentin, Mev, Crosbie, Emma J., Engel, Christoph, Aretz, Stefan, Macrae, Finlay, Winship, Ingrid, Capella, Gabriel, Thomas, Huw, Nakken, Sigve, Hovig, Eivind, Nielsen, Maartje, Sijmons, Rolf H., Bertario, Lucio, Bonanni, Bernardo, Tibiletti, Maria Grazia, Cavestro, Giulia Martina, Mints, Miriam, Gluck, Nathan, Katz, Lior, Heinimann, Karl, Vaccaro, Carlos A., Green, Kate, Lalloo, Fiona, Hill, James, Schmiegel, Wolff, Vangala, Deepak, Perne, Claudia, Strauß, Hans-Georg, Tecklenburg, Johanna, Holinski-Feder, Elke, Steinke-Lange, Verena, Mecklin, Jukka-Pekka, Plazzer, John-Paul, Pineda, Marta, Navarro, Matilde, Vidal, Joan Brunet, Kariv, Revital, Rosner, Guy, Piñero, Tamara Alejandra, Gonzalez, María Laura, Kalfayan, Pablo, Ryan, Neil, ten Broeke, Sanne W., Jenkins, Mark A., Sunde, Lone, Bernstein, Inge, Burn, John, Greenblatt, Marc, de Vos tot Nederveen Cappel, Wouter H., Della Valle, Adriana, Lopez-Koestner, Francisco, Alvarez, Karin, Büttner, Reinhard, Görgens, Heike, Morak, Monika, Holzapfel, Stefanie, Hüneburg, Robert, von Knebel Doeberitz, Magnus, Loeffler, Markus, Rahner, Nils, Weitz, Jürgen, Pylvänäinen, Kirsi, Renkonen-Sinisalo, Laura, Lepistö, Anna, Auranen, Annika, Hopper, John L., Win, Aung Ko, Haile, Robert W., Lindor, Noralane M., Gallinger, Steven, Le Marchand, Loïc, Newcomb, Polly A., Figueiredo, Jane C., Thibodeau, Stephen N., Therkildsen, Christina, Okkels, Henrik, Ketabi, Zohreh, Denton, Oliver G., Rødland, Einar Andreas, Vasen, Hans, Neffa, Florencia, Esperon, Patricia, Tjandra, Douglas, Möslein, Gabriela, Sampson, Julian R., Evans, D. Gareth, Seppälä, Toni T., and Møller, Pål

Published
2021
Full Text
View/download PDF

5. Precipitation spatial patterns in cities with different urbanisation types: Case study of Novi Sad (Serbia) as a medium-sized city

Author

Savić Stevan, Kalfayan Mathias, and Dolinaj Dragan

Subjects
urban climate, heavy rainfall, monitoring network, precipitation indices, pluvial flood, novi sad, Geography (General), G1-922
Abstract

A direct outcome of the global climate change is the modification of seasonal precipitation patterns, apparent on a monthly temporal scale. In Central Europe, it includes more frequent high-intensity rainfalls, occurring mostly during spring and summer. These heavy rainfalls induce pluvial floods in urban areas due to a high percentage of impervious surfaces and limited drainage systems. This hazard affects Central European cities and impacts many receptors, including lives, infrastructures, private properties or the functioning of cities. This study focuses on the monitoring of precipitation events with the aim of revealing precipitation patterns across two different types of land cover: urban and suburban/rural areas of Novi Sad (Serbia). Measurements from seven rain gauge stations were used as input data, covering the 2015-2018 period. The precipitation data were analysed using 12 precipitation indices, nine of which were defined by the Expert Team on Climate Change Detection and Indices (ETCCDI), while three additional were designed specifically for this study. Based on their locations, the stations were classified into the 'urbanized' and 'non-urbanised' group. The concept of the Local Climate Zone (LCZ) was used to classify urbanised areas LCZ1-8, non-urbanised areas LCZ9 and the land cover zones (LCZ A-G). A statistical analysis based on the ANOVA F-test was conducted, defining the significance threshold at 90% for a = 0.01 and at 95% for a = 0.05. The obtained results revealed one relation for the CDD index at 95% and two relations at 90% for CDD and Rp95 indices, showing a relation between heavy rainfall and the type of land cover. Statistical results underline the need for a denser station network and longer monitoring periods in order to proceed to stronger statistical tests and make it possible to establish other relations with the climate indices.

Published
2020

6. Cancer risks by gene, age, and gender in 6350 carriers of pathogenic mismatch repair variants: findings from the Prospective Lynch Syndrome Database

Author

Dominguez-Valentin, Mev, Sampson, Julian R., Seppälä, Toni T., ten Broeke, Sanne W., Plazzer, John-Paul, Nakken, Sigve, Engel, Christoph, Aretz, Stefan, Jenkins, Mark A., Sunde, Lone, Bernstein, Inge, Capella, Gabriel, Balaguer, Francesc, Thomas, Huw, Evans, D. Gareth, Burn, John, Greenblatt, Marc, Hovig, Eivind, de Vos tot Nederveen Cappel, Wouter H., Sijmons, Rolf H., Bertario, Lucio, Tibiletti, Maria Grazia, Cavestro, Giulia Martina, Lindblom, Annika, Della Valle, Adriana, Lopez-Köstner, Francisco, Gluck, Nathan, Katz, Lior H., Heinimann, Karl, Vaccaro, Carlos A., Büttner, Reinhard, Görgens, Heike, Holinski-Feder, Elke, Morak, Monika, Holzapfel, Stefanie, Hüneburg, Robert, Knebel Doeberitz, Magnus von, Loeffler, Markus, Rahner, Nils, Schackert, Hans K., Steinke-Lange, Verena, Schmiegel, Wolff, Vangala, Deepak, Pylvänäinen, Kirsi, Renkonen-Sinisalo, Laura, Hopper, John L., Win, Aung Ko, Haile, Robert W., Lindor, Noralane M., Gallinger, Steven, Le Marchand, Loïc, Newcomb, Polly A., Figueiredo, Jane C., Thibodeau, Stephen N., Wadt, Karin, Therkildsen, Christina, Okkels, Henrik, Ketabi, Zohreh, Moreira, Leticia, Sánchez, Ariadna, Serra-Burriel, Miquel, Pineda, Marta, Navarro, Matilde, Blanco, Ignacio, Green, Kate, Lalloo, Fiona, Crosbie, Emma J., Hill, James, Denton, Oliver G., Frayling, Ian M., Rødland, Einar Andreas, Vasen, Hans, Mints, Miriam, Neffa, Florencia, Esperon, Patricia, Alvarez, Karin, Kariv, Revital, Rosner, Guy, Pinero, Tamara Alejandra, Gonzalez, María Laura, Kalfayan, Pablo, Tjandra, Douglas, Winship, Ingrid M., Macrae, Finlay, Möslein, Gabriela, Mecklin, Jukka-Pekka, Nielsen, Maartje, and Møller, Pål

Published
2020
Full Text
View/download PDF

7. Dragonfly assemblages in four Mediterranean wetlands of Samos Island, Greece (Odonata)

Author

Mathias Kalfayan and Jan R. E. Taylor

Subjects
Zoology, QL1-991
Abstract

Dragonflies (Odonata) are considered to be valuable indicators of hydroecosystems. This study reports the composition of the dragonfly assemblages in four wetlands of Samos Island, Greece, in a geographic area especially vulnerable to climate change where a trend towards a drier climate has been observed in the last decades. Dragonfly assemblages have not yet been studied on Samos. The analysis based on the number of different species and their autochthony revealed clear differences among the wetlands. The eutrophic Glyfada Lake, despite its variable hydrology resulting from drought – the seasonal decrease in water availability – harboured the largest diversity of dragonflies, larger than the oligotrophic Mesokampos Lake. The assemblage of the spring and rivulet at Mytilini, although also influenced by drought, had its own set of species of high autochthony. The seasonal brackish lake and marsh of Psili Ammos had the lowest number of species and was dominated by one very abundant breeding species. Drought was the main factor affecting the number and composition of species. The collected data create a reference for the future monitoring of trends in the composition of odonatofauna under the changing climate of Samos Island.

Published
2020
Full Text
View/download PDF

9. A survey of the clinicopathological and molecular characteristics of patients with suspected Lynch syndrome in Latin America

Author

Benedito Mauro Rossi, Edenir Inêz Palmero, Francisco López-Kostner, Carlos Sarroca, Carlos Alberto Vaccaro, Florencia Spirandelli, Patricia Ashton-Prolla, Yenni Rodriguez, Henrique de Campos Reis Galvão, Rui Manuel Reis, André Escremim de Paula, Luis Gustavo Capochin Romagnolo, Karin Alvarez, Adriana Della Valle, Florencia Neffa, Pablo German Kalfayan, Enrique Spirandelli, Sergio Chialina, Melva Gutiérrez Angulo, Maria del Carmen Castro-Mujica, Julio Sanchez de Monte, Richard Quispe, Sabrina Daniela da Silva, Norma Teresa Rossi, Claudia Barletta-Carrillo, Susana Revollo, Ximena Taborga, L. Lena Morillas, Hélène Tubeuf, Erika Maria Monteiro-Santos, Tamara Alejandra Piñero, Constantino Dominguez-Barrera, Patrik Wernhoff, Alexandra Martins, Eivind Hovig, Pål Møller, and Mev Dominguez-Valentin

Subjects
Lynch syndrome, Mmr, Latin America, Variants, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Abstract Background Genetic counselling and testing for Lynch syndrome (LS) have recently been introduced in several Latin America countries. We aimed to characterize the clinical, molecular and mismatch repair (MMR) variants spectrum of patients with suspected LS in Latin America. Methods Eleven LS hereditary cancer registries and 34 published LS databases were used to identify unrelated families that fulfilled the Amsterdam II (AMSII) criteria and/or the Bethesda guidelines or suggestive of a dominant colorectal (CRC) inheritance syndrome. Results We performed a thorough investigation of 15 countries and identified 6 countries where germline genetic testing for LS is available and 3 countries where tumor testing is used in the LS diagnosis. The spectrum of pathogenic MMR variants included MLH1 up to 54%, MSH2 up to 43%, MSH6 up to 10%, PMS2 up to 3% and EPCAM up to 0.8%. The Latin America MMR spectrum is broad with a total of 220 different variants which 80% were private and 20% were recurrent. Frequent regions included exons 11 of MLH1 (15%), exon 3 and 7 of MSH2 (17 and 15%, respectively), exon 4 of MSH6 (65%), exons 11 and 13 of PMS2 (31% and 23%, respectively). Sixteen international founder variants in MLH1, MSH2 and MSH6 were identified and 41 (19%) variants have not previously been reported, thus representing novel genetic variants in the MMR genes. The AMSII criteria was the most used clinical criteria to identify pathogenic MMR carriers although microsatellite instability, immunohistochemistry and family history are still the primary methods in several countries where no genetic testing for LS is available yet. Conclusion The Latin America LS pathogenic MMR variants spectrum included new variants, frequently altered genetic regions and potential founder effects, emphasizing the relevance implementing Lynch syndrome genetic testing and counseling in all of Latin America countries.

Published
2017
Full Text
View/download PDF

10. The ‘totality-of-the-evidence’ approach in the development of PF-06438179/GP1111, an infliximab biosimilar, and in support of its use in all indications of the reference product

Author

Joseph E. McClellan, Hugh D. Conlon, Michael W. Bolt, Vatche Kalfayan, Rameshraja Palaparthy, Muhammad I. Rehman, and Carol F. Kirchhoff

Subjects
Diseases of the digestive system. Gastroenterology, RC799-869
Abstract

The ‘totality-of-the-evidence’ biosimilarity concept requires that sufficient structural, functional, nonclinical, and clinical data are acquired in a stepwise manner, to demonstrate that no clinically meaningful differences in quality, safety, or efficacy are observed compared with the reference product. We describe the totality of the evidence for PF-06438179/GP1111 (PF-SZ-IFX; IXIFI™ [infliximab-qbtx]/Zessly®) that supported its approval as an infliximab (IFX) biosimilar for all eligible indications of reference IFX (ref-IFX; Remicade®) in Europe and in the US. Analytical similarity involving in vitro assays capable of distinguishing structural or functional differences between PF-SZ-IFX and ref-IFX formed a foundation for the biosimilarity exercise. Differences identified in N-glycosylation and charge heterogeneity were found not to impact the results in in vitro biological assays reflective of the pharmacology underlying the mechanisms of action (tumor necrosis factor binding, reverse signaling, antibody-dependent cell-mediated cytotoxicity and complement-dependent cytotoxicity) of IFX across disease indications. Similarity was assessed in a comparative clinical pharmacokinetic study and in a clinical efficacy and safety study in patients with rheumatoid arthritis, where therapeutic equivalence between PF-SZ-IFX and ref-IFX provided confirmatory evidence of biosimilarity, and, when coupled with the analytical similarity already established, supported extrapolation to all eligible disease indications of ref-IFX.

Published
2019
Full Text
View/download PDF

11. Correction: Cancer risks by gene, age, and gender in 6350 carriers of pathogenic mismatch repair variants: findings from the Prospective Lynch Syndrome Database

Author

Dominguez-Valentin, Mev, Sampson, Julian R., Seppälä, Toni T., ten Broeke, Sanne W., Plazzer, John-Paul, Nakken, Sigve, Engel, Christoph, Aretz, Stefan, Jenkins, Mark A., Sunde, Lone, Bernstein, Inge, Capella, Gabriel, Balaguer, Francesc, Thomas, Huw, Evans, D. Gareth, Burn, John, Greenblatt, Marc, Hovig, Eivind, de Vos tot Nederveen Cappel, Wouter H., Sijmons, Rolf H., Bertario, Lucio, Tibiletti, Maria Grazia, Cavestro, Giulia Martina, Lindblom, Annika, Della Valle, Adriana, Lopez-Köstner, Francisco, Gluck, Nathan, Katz, Lior H., Heinimann, Karl, Vaccaro, Carlos A., Büttner, Reinhard, Görgens, Heike, Holinski-Feder, Elke, Morak, Monika, Holzapfel, Stefanie, Hüneburg, Robert, Knebel Doeberitz, Magnus von, Loeffler, Markus, Rahner, Nils, Schackert, Hans K., Steinke-Lange, Verena, Schmiegel, Wolff, Vangala, Deepak, Pylvänäinen, Kirsi, Renkonen-Sinisalo, Laura, Hopper, John L., Win, Aung Ko, Haile, Robert W., Lindor, Noralane M., Gallinger, Steven, Le Marchand, Loïc, Newcomb, Polly A., Figueiredo, Jane C., Thibodeau, Stephen N., Wadt, Karin, Therkildsen, Christina, Okkels, Henrik, Ketabi, Zohreh, Moreira, Leticia, Sánchez, Ariadna, Serra-Burriel, Miquel, Pineda, Marta, Navarro, Matilde, Blanco, Ignacio, Green, Kate, Lalloo, Fiona, Crosbie, Emma J., Hill, James, Denton, Oliver G., Frayling, Ian M., Rødland, Einar Andreas, Vasen, Hans, Mints, Miriam, Neffa, Florencia, Esperon, Patricia, Alvarez, Karin, Kariv, Revital, Rosner, Guy, Pinero, Tamara Alejandra, Gonzalez, María Laura, Kalfayan, Pablo, Tjandra, Douglas, Winship, Ingrid M., Macrae, Finlay, Möslein, Gabriela, Mecklin, Jukka-Pekka, Nielsen, Maartje, and Møller, Pål

Published
2020
Full Text
View/download PDF

12. Lynch syndrome in South America: past, present and future

Author

Vaccaro, Carlos A., Sarroca, Carlos, Rossi, Benedito, Lopez-Kostner, Francisco, Dominguez, Mev, Calo, Natalia Causada, Cutait, Raul, Valle, Adriana Della, Nuñez, Lina, Neffa, Florencia, Alvarez, Karin, Gonzalez, Maria Laura, Kalfayan, Pablo, Lynch, Henry T., and Church, James

Published
2016
Full Text
View/download PDF

13. Colorectal cancer incidences in Lynch syndrome: a comparison of results from the prospective lynch syndrome database and the international mismatch repair consortium

Author

Moller, P, Seppala, T, Dowty, JG, Haupt, S, Dominguez-Valentin, M, Sunde, L, Bernstein, I, Engel, C, Aretz, S, Nielsen, M, Capella, G, Evans, DG, Burn, J, Holinski-Feder, E, Bertario, L, Bonanni, B, Lindblom, A, Levi, Z, Macrae, F, Winship, I, Plazzer, J-P, Sijmons, R, Laghi, L, Della Valle, A, Heinimann, K, Half, E, Lopez-Koestner, F, Alvarez-Valenzuela, K, Scott, RJ, Katz, L, Laish, I, Vainer, E, Vaccaro, CA, Carraro, DM, Gluck, N, Abu-Freha, N, Stakelum, A, Kennelly, R, Winter, D, Rossi, BM, Greenblatt, M, Bohorquez, M, Sheth, H, Tibiletti, MG, Lino-Silva, LS, Horisberger, K, Portenkirchner, C, Nascimento, I, Rossi, NT, da Silva, LA, Thomas, H, Zarand, A, Mecklin, J-P, Pylvanainen, K, Renkonen-Sinisalo, L, Lepisto, A, Peltomaki, P, Therkildsen, C, Lindberg, LJ, Thorlacius-Ussing, O, von Knebel Doeberitz, M, Loeffler, M, Rahner, N, Steinke-Lange, V, Schmiegel, W, Vangala, D, Perne, C, Hueneburg, R, de Vargas, AF, Latchford, A, Gerdes, A-M, Backman, A-S, Guillen-Ponce, C, Snyder, C, Lautrup, CK, Amor, D, Palmero, E, Stoffel, E, Duijkers, F, Hall, MJ, Hampel, H, Williams, H, Okkels, H, Lubinski, J, Reece, J, Ngeow, J, Guillem, JG, Arnold, J, Wadt, K, Monahan, K, Senter, L, Rasmussen, LJ, van Hest, LP, Ricciardiello, L, Kohonen-Corish, MRJ, Ligtenberg, MJL, Southey, M, Aronson, M, Zahary, MN, Samadder, NJ, Poplawski, N, Hoogerbrugge, N, Morrison, PJ, James, P, Lee, G, Chen-Shtoyerman, R, Ankathil, R, Pai, R, Ward, R, Parry, S, Debniak, T, John, T, van Overeem Hansen, T, Caldes, T, Yamaguchi, T, Barca-Tierno, V, Garre, P, Cavestro, GM, Weitz, J, Redler, S, Buettner, R, Heuveline, V, Hopper, JL, Win, AK, Lindor, N, Gallinger, S, Le Marchand, L, Newcomb, PA, Figueiredo, J, Buchanan, DD, Thibodeau, SN, ten Broeke, SW, Hovig, E, Nakken, S, Pineda, M, Duenas, N, Brunet, J, Green, K, Lalloo, F, Newton, K, Crosbie, EJ, Mints, M, Tjandra, D, Neffa, F, Esperon, P, Kariv, R, Rosner, G, Pavicic, WH, Kalfayan, P, Torrezan, GT, Bassaneze, T, Martin, C, Moslein, G, Ahadova, A, Kloor, M, Sampson, JR, Jenkins, MA, Moller, P, Seppala, T, Dowty, JG, Haupt, S, Dominguez-Valentin, M, Sunde, L, Bernstein, I, Engel, C, Aretz, S, Nielsen, M, Capella, G, Evans, DG, Burn, J, Holinski-Feder, E, Bertario, L, Bonanni, B, Lindblom, A, Levi, Z, Macrae, F, Winship, I, Plazzer, J-P, Sijmons, R, Laghi, L, Della Valle, A, Heinimann, K, Half, E, Lopez-Koestner, F, Alvarez-Valenzuela, K, Scott, RJ, Katz, L, Laish, I, Vainer, E, Vaccaro, CA, Carraro, DM, Gluck, N, Abu-Freha, N, Stakelum, A, Kennelly, R, Winter, D, Rossi, BM, Greenblatt, M, Bohorquez, M, Sheth, H, Tibiletti, MG, Lino-Silva, LS, Horisberger, K, Portenkirchner, C, Nascimento, I, Rossi, NT, da Silva, LA, Thomas, H, Zarand, A, Mecklin, J-P, Pylvanainen, K, Renkonen-Sinisalo, L, Lepisto, A, Peltomaki, P, Therkildsen, C, Lindberg, LJ, Thorlacius-Ussing, O, von Knebel Doeberitz, M, Loeffler, M, Rahner, N, Steinke-Lange, V, Schmiegel, W, Vangala, D, Perne, C, Hueneburg, R, de Vargas, AF, Latchford, A, Gerdes, A-M, Backman, A-S, Guillen-Ponce, C, Snyder, C, Lautrup, CK, Amor, D, Palmero, E, Stoffel, E, Duijkers, F, Hall, MJ, Hampel, H, Williams, H, Okkels, H, Lubinski, J, Reece, J, Ngeow, J, Guillem, JG, Arnold, J, Wadt, K, Monahan, K, Senter, L, Rasmussen, LJ, van Hest, LP, Ricciardiello, L, Kohonen-Corish, MRJ, Ligtenberg, MJL, Southey, M, Aronson, M, Zahary, MN, Samadder, NJ, Poplawski, N, Hoogerbrugge, N, Morrison, PJ, James, P, Lee, G, Chen-Shtoyerman, R, Ankathil, R, Pai, R, Ward, R, Parry, S, Debniak, T, John, T, van Overeem Hansen, T, Caldes, T, Yamaguchi, T, Barca-Tierno, V, Garre, P, Cavestro, GM, Weitz, J, Redler, S, Buettner, R, Heuveline, V, Hopper, JL, Win, AK, Lindor, N, Gallinger, S, Le Marchand, L, Newcomb, PA, Figueiredo, J, Buchanan, DD, Thibodeau, SN, ten Broeke, SW, Hovig, E, Nakken, S, Pineda, M, Duenas, N, Brunet, J, Green, K, Lalloo, F, Newton, K, Crosbie, EJ, Mints, M, Tjandra, D, Neffa, F, Esperon, P, Kariv, R, Rosner, G, Pavicic, WH, Kalfayan, P, Torrezan, GT, Bassaneze, T, Martin, C, Moslein, G, Ahadova, A, Kloor, M, Sampson, JR, and Jenkins, MA

Abstract

OBJECTIVE: To compare colorectal cancer (CRC) incidences in carriers of pathogenic variants of the MMR genes in the PLSD and IMRC cohorts, of which only the former included mandatory colonoscopy surveillance for all participants. METHODS: CRC incidences were calculated in an intervention group comprising a cohort of confirmed carriers of pathogenic or likely pathogenic variants in mismatch repair genes (path_MMR) followed prospectively by the Prospective Lynch Syndrome Database (PLSD). All had colonoscopy surveillance, with polypectomy when polyps were identified. Comparison was made with a retrospective cohort reported by the International Mismatch Repair Consortium (IMRC). This comprised confirmed and inferred path_MMR carriers who were first- or second-degree relatives of Lynch syndrome probands. RESULTS: In the PLSD, 8,153 subjects had follow-up colonoscopy surveillance for a total of 67,604 years and 578 carriers had CRC diagnosed. Average cumulative incidences of CRC in path_MLH1 carriers at 70 years of age were 52% in males and 41% in females; for path_MSH2 50% and 39%; for path_MSH6 13% and 17% and for path_PMS2 11% and 8%. In contrast, in the IMRC cohort, corresponding cumulative incidences were 40% and 27%; 34% and 23%; 16% and 8% and 7% and 6%. Comparing just the European carriers in the two series gave similar findings. Numbers in the PLSD series did not allow comparisons of carriers from other continents separately. Cumulative incidences at 25 years were < 1% in all retrospective groups. CONCLUSIONS: Prospectively observed CRC incidences (PLSD) in path_MLH1 and path_MSH2 carriers undergoing colonoscopy surveillance and polypectomy were higher than in the retrospective (IMRC) series, and were not reduced in path_MSH6 carriers. These findings were the opposite to those expected. CRC point incidence before 50 years of age was reduced in path_PMS2 carriers subjected to colonoscopy, but not significantly so.

Published
2022

15. HEMOPTYSIS AFTER COVID-19 AND THE IMPORTANCE OF DIFFERENTIAL DIAGNOSIS: BIRT-HOGG-DUBÉ SYNDROME.

Author

RUIZ, VICTORIA, BUJAN, LUCAS, KALFAYAN, PABLO G., SEEHAUS, ALBERTO, BISSO, INDALECIO CARBONI, and LAS HERAS, MARCOS

Abstract

Copyright of Medicina (Buenos Aires) is the property of Medicina (Buenos Aires) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023

17. Correction: Cancer risks by gene, age, and gender in 6350 carriers of pathogenic mismatch repair variants: findings from the Prospective Lynch Syndrome Database (Genetics in Medicine, (2020), 22, 1, (15-25), 10.1038/s41436-019-0596-9)

Author

Dominguez-Valentin M., Sampson J. R., Seppala T. T., ten Broeke S. W., Plazzer J. -P., Nakken S., Engel C., Aretz S., Jenkins M. A., Sunde L., Bernstein I., Capella G., Balaguer F., Thomas H., Evans D. G., Burn J., Greenblatt M., Hovig E., de Vos tot Nederveen Cappel W. H., Sijmons R. H., Bertario L., Tibiletti M. G., Cavestro G. M., Lindblom A., Della Valle A., Lopez-Kostner F., Gluck N., Katz L. H., Heinimann K., Vaccaro C. A., Buttner R., Gorgens H., Holinski-Feder E., Morak M., Holzapfel S., Huneburg R., Knebel Doeberitz M., Loeffler M., Rahner N., Schackert H. K., Steinke-Lange V., Schmiegel W., Vangala D., Pylvanainen K., Renkonen-Sinisalo L., Hopper J. L., Win A. K., Haile R. W., Lindor N. M., Gallinger S., Le Marchand L., Newcomb P. A., Figueiredo J. C., Thibodeau S. N., Wadt K., Therkildsen C., Okkels H., Ketabi Z., Moreira L., Sanchez A., Serra-Burriel M., Pineda M., Navarro M., Blanco I., Green K., Lalloo F., Crosbie E. J., Hill J., Denton O. G., Frayling I. M., Rodland E. A., Vasen H., Mints M., Neffa F., Esperon P., Alvarez K., Kariv R., Rosner G., Pinero T. A., Gonzalez M. L., Kalfayan P., Tjandra D., Winship I. M., Macrae F., Moslein G., Mecklin J. -P., Nielsen M., Moller P., Dominguez-Valentin, M., Sampson, J. R., Seppala, T. T., ten Broeke, S. W., Plazzer, J. -P., Nakken, S., Engel, C., Aretz, S., Jenkins, M. A., Sunde, L., Bernstein, I., Capella, G., Balaguer, F., Thomas, H., Evans, D. G., Burn, J., Greenblatt, M., Hovig, E., de Vos tot Nederveen Cappel, W. H., Sijmons, R. H., Bertario, L., Tibiletti, M. G., Cavestro, G. M., Lindblom, A., Della Valle, A., Lopez-Kostner, F., Gluck, N., Katz, L. H., Heinimann, K., Vaccaro, C. A., Buttner, R., Gorgens, H., Holinski-Feder, E., Morak, M., Holzapfel, S., Huneburg, R., Knebel Doeberitz, M., Loeffler, M., Rahner, N., Schackert, H. K., Steinke-Lange, V., Schmiegel, W., Vangala, D., Pylvanainen, K., Renkonen-Sinisalo, L., Hopper, J. L., Win, A. K., Haile, R. W., Lindor, N. M., Gallinger, S., Le Marchand, L., Newcomb, P. A., Figueiredo, J. C., Thibodeau, S. N., Wadt, K., Therkildsen, C., Okkels, H., Ketabi, Z., Moreira, L., Sanchez, A., Serra-Burriel, M., Pineda, M., Navarro, M., Blanco, I., Green, K., Lalloo, F., Crosbie, E. J., Hill, J., Denton, O. G., Frayling, I. M., Rodland, E. A., Vasen, H., Mints, M., Neffa, F., Esperon, P., Alvarez, K., Kariv, R., Rosner, G., Pinero, T. A., Gonzalez, M. L., Kalfayan, P., Tjandra, D., Winship, I. M., Macrae, F., Moslein, G., Mecklin, J. -P., Nielsen, M., and Moller, P.

Abstract

The original version of this Article did not contain details of Dutch Cancer Society (DCS) funding (grant number UL 2017-8223) in the Acknowledgements section. This has now been corrected in both the PDF and HTML versions of the Article.

Published
2020

18. Uptake of hysterectomy and bilateral salpingooophorectomy in carriers of pathogenic mismatch repair variants: a Prospective Lynch Syndrome Database report

Author

Seppala, TT, Dominguez-Valentin, M, Crosbie, EJ, Engel, C, Aretz, S, Macrae, F, Winship, I, Capella, G, Thomas, H, Hovig, E, Nielsen, M, Sijmons, RH, Bertario, L, Bonanni, B, Tibiletti, MG, Cavestro, GM, Mints, M, Gluck, N, Katz, L, Heinimann, K, Vaccaro, CA, Green, K, Lalloo, F, Hill, J, Schmiegel, W, Vangala, D, Perne, C, Strauss, H-G, Tecklenburg, J, Holinski-Feder, E, Steinke-Lange, V, Mecklin, J-P, Plazzer, J-P, Pineda, M, Navarro, M, Vida, JB, Kariv, R, Rosner, G, Pinero, TA, Pavicic, W, Kalfayan, P, Ten Broeke, SW, Jenkins, MA, Sunde, L, Bernstein, I, Burn, J, Greenblatt, M, Cappel, WHDVTN, Della Valle, A, Lopez-Koestner, F, Alvarez, K, Buettner, R, Goergens, H, Morak, M, Holzapfel, S, Hueneburg, R, Doeberitz, MVK, Loeffler, M, Redler, S, Weitz, J, Pylvaenaeinen, K, Renkonen-Sinisalo, L, Lepisto, A, Hopper, JL, Win, AK, Lindor, NM, Gallinger, S, Marchand, LL, Newcomb, PA, Figueiredo, JC, Thibodeau, SN, Therkildsen, C, Wadt, KAW, Mourits, MJE, Ketabi, Z, Denton, OG, Rodland, EA, Vasen, H, Neffa, F, Esperon, P, Tjandra, D, Moeslein, G, Rokkones, E, Sampson, JR, Evans, DG, Moller, P, Seppala, TT, Dominguez-Valentin, M, Crosbie, EJ, Engel, C, Aretz, S, Macrae, F, Winship, I, Capella, G, Thomas, H, Hovig, E, Nielsen, M, Sijmons, RH, Bertario, L, Bonanni, B, Tibiletti, MG, Cavestro, GM, Mints, M, Gluck, N, Katz, L, Heinimann, K, Vaccaro, CA, Green, K, Lalloo, F, Hill, J, Schmiegel, W, Vangala, D, Perne, C, Strauss, H-G, Tecklenburg, J, Holinski-Feder, E, Steinke-Lange, V, Mecklin, J-P, Plazzer, J-P, Pineda, M, Navarro, M, Vida, JB, Kariv, R, Rosner, G, Pinero, TA, Pavicic, W, Kalfayan, P, Ten Broeke, SW, Jenkins, MA, Sunde, L, Bernstein, I, Burn, J, Greenblatt, M, Cappel, WHDVTN, Della Valle, A, Lopez-Koestner, F, Alvarez, K, Buettner, R, Goergens, H, Morak, M, Holzapfel, S, Hueneburg, R, Doeberitz, MVK, Loeffler, M, Redler, S, Weitz, J, Pylvaenaeinen, K, Renkonen-Sinisalo, L, Lepisto, A, Hopper, JL, Win, AK, Lindor, NM, Gallinger, S, Marchand, LL, Newcomb, PA, Figueiredo, JC, Thibodeau, SN, Therkildsen, C, Wadt, KAW, Mourits, MJE, Ketabi, Z, Denton, OG, Rodland, EA, Vasen, H, Neffa, F, Esperon, P, Tjandra, D, Moeslein, G, Rokkones, E, Sampson, JR, Evans, DG, and Moller, P

Abstract

PURPOSE: This study aimed to report the uptake of hysterectomy and/or bilateral salpingo-oophorectomy (BSO) to prevent gynaecological cancers (risk-reducing surgery [RRS]) in carriers of pathogenic MMR (path_MMR) variants. METHODS: The Prospective Lynch Syndrome Database (PLSD) was used to investigate RRS by a cross-sectional study in 2292 female path_MMR carriers aged 30-69 years. RESULTS: Overall, 144, 79, and 517 carriers underwent risk-reducing hysterectomy, BSO, or both combined, respectively. Two-thirds of procedures before 50 years of age were combined hysterectomy and BSO, and 81% of all procedures included BSO. Risk-reducing hysterectomy was performed before age 50 years in 28%, 25%, 15%, and 9%, and BSO in 26%, 25%, 14% and 13% of path_MLH1, path_MSH2, path_MSH6, and path_PMS2 carriers, respectively. Before 50 years of age, 107 of 188 (57%) BSO and 126 of 204 (62%) hysterectomies were performed in women without any prior cancer, and only 5% (20/392) were performed simultaneously with colorectal cancer (CRC) surgery. CONCLUSION: Uptake of RRS before 50 years of age was low, and RRS was rarely undertaken in association with surgical treatment of CRC. Uptake of RRS aligned poorly with gene- and age-associated risk estimates for endometrial or ovarian cancer that were published recently from PLSD and did not correspond well with current clinical guidelines. The reasons should be clarified. Decision-making on opting for or against RRS and its timing should be better aligned with predicted risk and mortality for endometrial and ovarian cancer in Lynch syndrome to improve outcomes.

Published
2021

19. Risk-reducing hysterectomy and bilateral salpingo-oophorectomy in female heterozygotes of pathogenic mismatch repair variants: a Prospective Lynch Syndrome Database report

Author

Dominguez-Valentin, M, Crosbie, EJ, Engel, C, Aretz, S, Macrae, F, Winship, I, Capella, G, Thomas, H, Nakken, S, Hovig, E, Nielsen, M, Sijmons, RH, Bertario, L, Bonanni, B, Tibiletti, MG, Cavestro, GM, Mints, M, Gluck, N, Katz, L, Heinimann, K, Vaccaro, CA, Green, K, Lalloo, F, Hill, J, Schmiegel, W, Vangala, D, Perne, C, Strauss, H-G, Tecklenburg, J, Holinski-Feder, E, Steinke-Lange, V, Mecklin, J-P, Plazzer, J-P, Pineda, M, Navarro, M, Brunet Vidal, J, Kariv, R, Rosner, G, Alejandra Pinero, T, Laura Gonzalez, M, Kalfayan, P, Ryan, N, Ten Broeke, SW, Jenkins, MA, Sunde, L, Bernstein, I, Burn, J, Greenblatt, M, Cappel, WHDVTN, Della Valle, A, Lopez-Koestner, F, Alvarez, K, Buettner, R, Goergens, H, Morak, M, Holzapfel, S, Hueneburg, R, Doeberitz, MVK, Loeffler, M, Rahner, N, Weitz, J, Pylvanainen, K, Renkonen-Sinisalo, L, Lepisto, A, Auranen, A, Hopper, JL, Win, AK, Haile, RW, Lindor, NM, Gallinger, S, Le Marchand, L, Newcomb, PA, Figueiredo, JC, Thibodeau, SN, Therkildsen, C, Okkels, H, Ketabi, Z, Denton, OG, Rodland, EA, Vasen, H, Neffa, F, Esperon, P, Tjandra, D, Moeslein, G, Sampson, JR, Evans, DG, Seppala, TT, Moller, P, Dominguez-Valentin, M, Crosbie, EJ, Engel, C, Aretz, S, Macrae, F, Winship, I, Capella, G, Thomas, H, Nakken, S, Hovig, E, Nielsen, M, Sijmons, RH, Bertario, L, Bonanni, B, Tibiletti, MG, Cavestro, GM, Mints, M, Gluck, N, Katz, L, Heinimann, K, Vaccaro, CA, Green, K, Lalloo, F, Hill, J, Schmiegel, W, Vangala, D, Perne, C, Strauss, H-G, Tecklenburg, J, Holinski-Feder, E, Steinke-Lange, V, Mecklin, J-P, Plazzer, J-P, Pineda, M, Navarro, M, Brunet Vidal, J, Kariv, R, Rosner, G, Alejandra Pinero, T, Laura Gonzalez, M, Kalfayan, P, Ryan, N, Ten Broeke, SW, Jenkins, MA, Sunde, L, Bernstein, I, Burn, J, Greenblatt, M, Cappel, WHDVTN, Della Valle, A, Lopez-Koestner, F, Alvarez, K, Buettner, R, Goergens, H, Morak, M, Holzapfel, S, Hueneburg, R, Doeberitz, MVK, Loeffler, M, Rahner, N, Weitz, J, Pylvanainen, K, Renkonen-Sinisalo, L, Lepisto, A, Auranen, A, Hopper, JL, Win, AK, Haile, RW, Lindor, NM, Gallinger, S, Le Marchand, L, Newcomb, PA, Figueiredo, JC, Thibodeau, SN, Therkildsen, C, Okkels, H, Ketabi, Z, Denton, OG, Rodland, EA, Vasen, H, Neffa, F, Esperon, P, Tjandra, D, Moeslein, G, Sampson, JR, Evans, DG, Seppala, TT, and Moller, P

Abstract

PURPOSE: To determine impact of risk-reducing hysterectomy and bilateral salpingo-oophorectomy (BSO) on gynecological cancer incidence and death in heterozygotes of pathogenic MMR (path_MMR) variants. METHODS: The Prospective Lynch Syndrome Database was used to investigate the effects of gynecological risk-reducing surgery (RRS) at different ages. RESULTS: Risk-reducing hysterectomy at 25 years of age prevents endometrial cancer before 50 years in 15%, 18%, 13%, and 0% of path_MLH1, path_MSH2, path_MSH6, and path_PMS2 heterozygotes and death in 2%, 2%, 1%, and 0%, respectively. Risk-reducing BSO at 25 years of age prevents ovarian cancer before 50 years in 6%, 11%, 2%, and 0% and death in 1%, 2%, 0%, and 0%, respectively. Risk-reducing hysterectomy at 40 years prevents endometrial cancer by 50 years in 13%, 16%, 11%, and 0% and death in 1%, 2%, 1%, and 0%, respectively. BSO at 40 years prevents ovarian cancer before 50 years in 4%, 8%, 0%, and 0%, and death in 1%, 1%, 0%, and 0%, respectively. CONCLUSION: Little benefit is gained by performing RRS before 40 years of age and premenopausal BSO in path_MSH6 and path_PMS2 heterozygotes has no measurable benefit for mortality. These findings may aid decision making for women with LS who are considering RRS.

Published
2021

20. No Difference in Penetrance between Truncating and Missense/Aberrant Splicing Pathogenic Variants in MLH1 and MSH2: A Prospective Lynch Syndrome Database Study

Author

Dominguez-Valentin, M, Plazzer, J-P, Sampson, JR, Engel, C, Aretz, S, Jenkins, MA, Sunde, L, Bernstein, I, Capella, G, Balaguer, F, Macrae, F, Winship, IM, Thomas, H, Evans, DG, Burn, J, Greenblatt, M, Cappel, WHDVTN, Sijmons, RH, Nielsen, M, Bertario, L, Bonanni, B, Tibiletti, MG, Cavestro, GM, Lindblom, A, Della Valle, A, Lopez-Kostner, F, Alvarez, K, Gluck, N, Katz, L, Heinimann, K, Vaccaro, CA, Nakken, S, Hovig, E, Green, K, Lalloo, F, Hill, J, Vasen, HFA, Perne, C, Buettner, R, Goergens, H, Holinski-Feder, E, Morak, M, Holzapfel, S, Hueneburg, R, Doeberitz, MVK, Loeffler, M, Rahner, N, Weitz, J, Steinke-Lange, V, Schmiegel, W, Vangala, D, Crosbie, EJ, Pineda, M, Navarro, M, Brunet, J, Moreira, L, Sanchez, A, Serra-Burriel, M, Mints, M, Kariv, R, Rosner, G, Pinero, TA, Pavicic, WH, Kalfayan, P, ten Broeke, SW, Mecklin, J-P, Pylvanainen, K, Renkonen-Sinisalo, L, Lepisto, A, Peltomaki, P, Hopper, JL, Win, AK, Buchanan, DD, Lindor, NM, Gallinger, S, Le Marchand, L, Newcomb, PA, Figueiredo, JC, Thibodeau, SN, Therkildsen, C, Hansen, TVO, Lindberg, L, Rodland, EA, Neffa, F, Esperon, P, Tjandra, D, Moslein, G, Seppala, TT, Moller, P, Dominguez-Valentin, M, Plazzer, J-P, Sampson, JR, Engel, C, Aretz, S, Jenkins, MA, Sunde, L, Bernstein, I, Capella, G, Balaguer, F, Macrae, F, Winship, IM, Thomas, H, Evans, DG, Burn, J, Greenblatt, M, Cappel, WHDVTN, Sijmons, RH, Nielsen, M, Bertario, L, Bonanni, B, Tibiletti, MG, Cavestro, GM, Lindblom, A, Della Valle, A, Lopez-Kostner, F, Alvarez, K, Gluck, N, Katz, L, Heinimann, K, Vaccaro, CA, Nakken, S, Hovig, E, Green, K, Lalloo, F, Hill, J, Vasen, HFA, Perne, C, Buettner, R, Goergens, H, Holinski-Feder, E, Morak, M, Holzapfel, S, Hueneburg, R, Doeberitz, MVK, Loeffler, M, Rahner, N, Weitz, J, Steinke-Lange, V, Schmiegel, W, Vangala, D, Crosbie, EJ, Pineda, M, Navarro, M, Brunet, J, Moreira, L, Sanchez, A, Serra-Burriel, M, Mints, M, Kariv, R, Rosner, G, Pinero, TA, Pavicic, WH, Kalfayan, P, ten Broeke, SW, Mecklin, J-P, Pylvanainen, K, Renkonen-Sinisalo, L, Lepisto, A, Peltomaki, P, Hopper, JL, Win, AK, Buchanan, DD, Lindor, NM, Gallinger, S, Le Marchand, L, Newcomb, PA, Figueiredo, JC, Thibodeau, SN, Therkildsen, C, Hansen, TVO, Lindberg, L, Rodland, EA, Neffa, F, Esperon, P, Tjandra, D, Moslein, G, Seppala, TT, and Moller, P

Abstract

BACKGROUND: Lynch syndrome is the most common genetic predisposition for hereditary cancer. Carriers of pathogenic changes in mismatch repair (MMR) genes have an increased risk of developing colorectal (CRC), endometrial, ovarian, urinary tract, prostate, and other cancers, depending on which gene is malfunctioning. In Lynch syndrome, differences in cancer incidence (penetrance) according to the gene involved have led to the stratification of cancer surveillance. By contrast, any differences in penetrance determined by the type of pathogenic variant remain unknown. OBJECTIVE: To determine cumulative incidences of cancer in carriers of truncating and missense or aberrant splicing pathogenic variants of the MLH1 and MSH2 genes. METHODS: Carriers of pathogenic variants of MLH1 (path_MLH1) and MSH2 (path_MSH2) genes filed in the Prospective Lynch Syndrome Database (PLSD) were categorized as truncating or missense/aberrant splicing according to the InSiGHT criteria for pathogenicity. RESULTS: Among 5199 carriers, 1045 had missense or aberrant splicing variants, and 3930 had truncating variants. Prospective observation years for the two groups were 8205 and 34,141 years, respectively, after which there were no significant differences in incidences for cancer overall or for colorectal cancer or endometrial cancers separately. CONCLUSION: Truncating and missense or aberrant splicing pathogenic variants were associated with similar average cumulative incidences of cancer in carriers of path MLH1 and path_MSH2.

Published
2021

21. Analysis in the Prospective Lynch Syndrome Database identifies sarcoma as part of the Lynch syndrome tumor spectrum

Author

Dominguez-Valentin M., Sampson J. R., Moller P., Seppala T. T., Plazzer J. -P., Nakken S., Engel C., Aretz S., Jenkins M. A., Sunde L., Bernstein I., Capella G., Balaguer F., Thomas H., Evans D. G., Burn J., Greenblatt M., Hovig E., Nielsen M., de Vos tot Nederveen Cappel W. H., Sijmons R. H., Bertario L., Tibiletti M. G., Cavestro G. M., Lindblom A., Valle A. D., Lopez-Kostner F., Gluck N., Katz L. H., Heinimann K., Vaccaro C. A., Buttner R., Gorgens H., Holinski-Feder E., Morak M., Holzapfel S., Huneburg R., von Knebel Doeberitz M., Loeffler M., Rahner N., Weitz J., Steinke-Lange V., ten Broeke S. W., Schmiegel W., Vangala D., Pylvanainen K., Renkonen-Sinisalo L., Hopper J. L., Win A. K., Haile R. W., Lindor N. M., Gallinger S., Le Marchand L., Newcomb P. A., Figueiredo J. C., Thibodeau S. N., Jensen L. H., Madsen M. B., Kroldrup L., Nilbert M., Moreira L., Sanchez A., Serra-Burriel M., Pineda M., Navarro M., Vidal J. B., Blanco I., Green K., Lalloo F., Crosbie E. J., Hill J., Denton O. G., Rodland E. A., Vasen H., Mints M., Neffa F., Esperon P., Alvarez K., Kariv R., Rosner G., Pinero T. A., Gonzalez M. L., Kalfayan P., Tjandra D., Winship I. M., Macrae F., Moslein G., Mecklin J. -P., Dominguez-Valentin, M., Sampson, J. R., Moller, P., Seppala, T. T., Plazzer, J. -P., Nakken, S., Engel, C., Aretz, S., Jenkins, M. A., Sunde, L., Bernstein, I., Capella, G., Balaguer, F., Thomas, H., Evans, D. G., Burn, J., Greenblatt, M., Hovig, E., Nielsen, M., de Vos tot Nederveen Cappel, W. H., Sijmons, R. H., Bertario, L., Tibiletti, M. G., Cavestro, G. M., Lindblom, A., Valle, A. D., Lopez-Kostner, F., Gluck, N., Katz, L. H., Heinimann, K., Vaccaro, C. A., Buttner, R., Gorgens, H., Holinski-Feder, E., Morak, M., Holzapfel, S., Huneburg, R., von Knebel Doeberitz, M., Loeffler, M., Rahner, N., Weitz, J., Steinke-Lange, V., ten Broeke, S. W., Schmiegel, W., Vangala, D., Pylvanainen, K., Renkonen-Sinisalo, L., Hopper, J. L., Win, A. K., Haile, R. W., Lindor, N. M., Gallinger, S., Le Marchand, L., Newcomb, P. A., Figueiredo, J. C., Thibodeau, S. N., Jensen, L. H., Madsen, M. B., Kroldrup, L., Nilbert, M., Moreira, L., Sanchez, A., Serra-Burriel, M., Pineda, M., Navarro, M., Vidal, J. B., Blanco, I., Green, K., Lalloo, F., Crosbie, E. J., Hill, J., Denton, O. G., Rodland, E. A., Vasen, H., Mints, M., Neffa, F., Esperon, P., Alvarez, K., Kariv, R., Rosner, G., Pinero, T. A., Gonzalez, M. L., Kalfayan, P., Tjandra, D., Winship, I. M., Macrae, F., Moslein, G., and Mecklin, J. -P.

Subjects
Male, Adult, Oncology, Cancer Research, 2019-20 coronavirus outbreak, medicine.medical_specialty, sarcoma, Databases, Factual, Coronavirus disease 2019 (COVID-19), Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), Sarcoma/diagnosis, 03 medical and health sciences, 0302 clinical medicine, Internal medicine, Humans, Medicine, Aged, business.industry, Sarcoma, Syndrome, Middle Aged, medicine.disease, Colorectal Neoplasms, Hereditary Nonpolyposis, Lynch syndrome, MSH2, 030220 oncology & carcinogenesis, Colorectal Neoplasms, Hereditary Nonpolyposis/diagnosis, Female, 030211 gastroenterology & hepatology, business
Published
2020

22. Correction: Cancer risks by gene, age, and gender in 6350 carriers of pathogenic mismatch repair variants: findings from the Prospective Lynch Syndrome Database (vol 22, pg 15, 2020)

Author

Dominguez-Valentin, M, Sampson, JR, Seppala, TT, ten Broeke, SW, Plazzer, J-P, Nakken, S, Engel, C, Aretz, S, Jenkins, MA, Sunde, L, Bernstein, I, Capella, G, Balaguer, F, Thomas, H, Evans, DG, Burn, J, Greenblatt, M, Hovig, E, de Vos tot Nederveen Cappel, WH, Sijmons, RH, Bertario, L, Tibiletti, MG, Cavestro, GM, Lindblom, A, Della Valle, A, Lopez-Kostner, F, Gluck, N, Katz, LH, Heinimann, K, Vaccaro, CA, Buttner, R, Gorgens, H, Holinski-Feder, E, Morak, M, Holzapfel, S, Huneburg, R, Knebel Doeberitz, MV, Loeffler, M, Rahner, N, Schackert, HK, Steinke-Lange, V, Schmiegel, W, Vangala, D, Pylvanainen, K, Renkonen-Sinisalo, L, Hopper, JL, Win, AK, Haile, RW, Lindor, NM, Gallinger, S, Le Marchand, L, Newcomb, PA, Figueiredo, JC, Thibodeau, SN, Wadt, K, Therkildsen, C, Okkels, H, Ketabi, Z, Moreira, L, Sanchez, A, Serra-Burriel, M, Pineda, M, Navarro, M, Blanco, I, Green, K, Lalloo, F, Crosbie, EJ, Hill, J, Denton, OG, Frayling, IM, Rodland, EA, Vasen, H, Mints, M, Neffa, F, Esperon, P, Alvarez, K, Kariv, R, Rosner, G, Pinero, TA, Gonzalez, ML, Kalfayan, P, Tjandra, D, Winship, IM, Macrae, F, Moslein, G, Mecklin, J-P, Nielsen, M, Moller, P, Dominguez-Valentin, M, Sampson, JR, Seppala, TT, ten Broeke, SW, Plazzer, J-P, Nakken, S, Engel, C, Aretz, S, Jenkins, MA, Sunde, L, Bernstein, I, Capella, G, Balaguer, F, Thomas, H, Evans, DG, Burn, J, Greenblatt, M, Hovig, E, de Vos tot Nederveen Cappel, WH, Sijmons, RH, Bertario, L, Tibiletti, MG, Cavestro, GM, Lindblom, A, Della Valle, A, Lopez-Kostner, F, Gluck, N, Katz, LH, Heinimann, K, Vaccaro, CA, Buttner, R, Gorgens, H, Holinski-Feder, E, Morak, M, Holzapfel, S, Huneburg, R, Knebel Doeberitz, MV, Loeffler, M, Rahner, N, Schackert, HK, Steinke-Lange, V, Schmiegel, W, Vangala, D, Pylvanainen, K, Renkonen-Sinisalo, L, Hopper, JL, Win, AK, Haile, RW, Lindor, NM, Gallinger, S, Le Marchand, L, Newcomb, PA, Figueiredo, JC, Thibodeau, SN, Wadt, K, Therkildsen, C, Okkels, H, Ketabi, Z, Moreira, L, Sanchez, A, Serra-Burriel, M, Pineda, M, Navarro, M, Blanco, I, Green, K, Lalloo, F, Crosbie, EJ, Hill, J, Denton, OG, Frayling, IM, Rodland, EA, Vasen, H, Mints, M, Neffa, F, Esperon, P, Alvarez, K, Kariv, R, Rosner, G, Pinero, TA, Gonzalez, ML, Kalfayan, P, Tjandra, D, Winship, IM, Macrae, F, Moslein, G, Mecklin, J-P, Nielsen, M, and Moller, P

Abstract

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Published
2020

23. Risk-Reducing Gynecological Surgery in Lynch Syndrome: Results of an International Survey from the Prospective Lynch Syndrome Database

Author

Dominguez-Valentin, M, Seppala, TT, Engel, C, Aretz, S, Macrae, F, Winship, I, Capella, G, Thomas, H, Hovig, E, Nielsen, M, Sijmons, RH, Bertario, L, Bonanni, B, Tibiletti, MG, Cavestro, GM, Mints, M, Gluck, N, Katz, L, Heinimann, K, Vaccaro, CA, Green, K, Lalloo, F, Hill, J, Schmiegel, W, Vangala, D, Perne, C, Strauss, H-G, Tecklenburg, J, Holinski-Feder, E, Steinke-Lange, V, Mecklin, J-P, Plazzer, J-P, Pineda, M, Navarro, M, Vidal, JB, Kariv, R, Rosner, G, Alejandra Pinero, T, Laura Gonzalez, M, Kalfayan, P, Sampson, JR, Ryan, NAJ, Evans, DG, Moller, P, Crosbie, EJ, Dominguez-Valentin, M, Seppala, TT, Engel, C, Aretz, S, Macrae, F, Winship, I, Capella, G, Thomas, H, Hovig, E, Nielsen, M, Sijmons, RH, Bertario, L, Bonanni, B, Tibiletti, MG, Cavestro, GM, Mints, M, Gluck, N, Katz, L, Heinimann, K, Vaccaro, CA, Green, K, Lalloo, F, Hill, J, Schmiegel, W, Vangala, D, Perne, C, Strauss, H-G, Tecklenburg, J, Holinski-Feder, E, Steinke-Lange, V, Mecklin, J-P, Plazzer, J-P, Pineda, M, Navarro, M, Vidal, JB, Kariv, R, Rosner, G, Alejandra Pinero, T, Laura Gonzalez, M, Kalfayan, P, Sampson, JR, Ryan, NAJ, Evans, DG, Moller, P, and Crosbie, EJ

Abstract

PURPOSE: To survey risk-reducing hysterectomy and bilateral salpingo-oophorectomy (BSO) practice and advice regarding hormone replacement therapy (HRT) in women with Lynch syndrome. METHODS: We conducted a survey in 31 contributing centers from the Prospective Lynch Syndrome Database (PLSD), which incorporates 18 countries worldwide. The survey covered local policies for risk-reducing hysterectomy and BSO in Lynch syndrome, the timing when these measures are offered, the involvement of stakeholders and advice regarding HRT. RESULTS: Risk-reducing hysterectomy and BSO are offered to path_MLH1 and path_MSH2 carriers in 20/21 (95%) contributing centers, to path_MSH6 carriers in 19/21 (91%) and to path_PMS2 carriers in 14/21 (67%). Regarding the involvement of stakeholders, there is global agreement (~90%) that risk-reducing surgery should be offered to women, and that this discussion may involve gynecologists, genetic counselors and/or medical geneticists. Prescription of estrogen-only HRT is offered by 15/21 (71%) centers to women of variable age range (35-55 years). CONCLUSIONS: Most centers offer risk-reducing gynecological surgery to carriers of path_MLH1, path_MSH2 and path_MSH6 variants but less so for path_PMS2 carriers. There is wide variation in how, when and to whom this is offered. The Manchester International Consensus Group developed recommendations to harmonize clinical practice across centers, but there is a clear need for more research.

Published
2020

24. Cancer risks by gene, age, and gender in 6350 carriers of pathogenic mismatch repair variants: findings from the Prospective Lynch Syndrome Database

Author

Dominguez-Valentin, M, Sampson, JR, Seppala, TT, ten Broeke, SW, Plazzer, J-P, Nakken, S, Engel, C, Aretz, S, Jenkins, MA, Sunde, L, Bernstein, I, Capella, G, Balaguer, F, Thomas, H, Evans, DG, Burn, J, Greenblatt, M, Hovig, E, de Vos Tot Nederveen Cappel, WH, Sijmons, RH, Bertario, L, Tibiletti, MG, Cavestro, GM, Lindblom, A, Della Valle, A, Lopez-Kostner, F, Gluck, N, Katz, LH, Heinimann, K, Vaccaro, CA, Buettner, R, Goergens, H, Holinski-Feder, E, Morak, M, Holzapfel, S, Hueneburg, R, von Knebel Doeberitz, M, Loeffler, M, Rahner, N, Schackert, HK, Steinke-Lange, V, Schmiegel, W, Vangala, D, Pylvanainen, K, Renkonen-Sinisalo, L, Hopper, JL, Win, AK, Haile, RW, Lindor, NM, Gallinger, S, Le Marchand, L, Newcomb, PA, Figueiredo, JC, Thibodeau, SN, Wadt, K, Therkildsen, C, Okkels, H, Ketabi, Z, Moreira, L, Sanchez, A, Serra-Burriel, M, Pineda, M, Navarro, M, Blanco, I, Green, K, Lalloo, F, Crosbie, EJ, Hill, J, Denton, OG, Frayling, IM, Rodland, EA, Vasen, H, Mints, M, Neffa, F, Esperon, P, Alvarez, K, Kariv, R, Rosner, G, Pinero, TA, Gonzalez, ML, Kalfayan, P, Tjandra, D, Winship, IM, Macrae, F, Moeslein, G, Mecklin, J-P, Nielsen, M, Moller, P, Dominguez-Valentin, M, Sampson, JR, Seppala, TT, ten Broeke, SW, Plazzer, J-P, Nakken, S, Engel, C, Aretz, S, Jenkins, MA, Sunde, L, Bernstein, I, Capella, G, Balaguer, F, Thomas, H, Evans, DG, Burn, J, Greenblatt, M, Hovig, E, de Vos Tot Nederveen Cappel, WH, Sijmons, RH, Bertario, L, Tibiletti, MG, Cavestro, GM, Lindblom, A, Della Valle, A, Lopez-Kostner, F, Gluck, N, Katz, LH, Heinimann, K, Vaccaro, CA, Buettner, R, Goergens, H, Holinski-Feder, E, Morak, M, Holzapfel, S, Hueneburg, R, von Knebel Doeberitz, M, Loeffler, M, Rahner, N, Schackert, HK, Steinke-Lange, V, Schmiegel, W, Vangala, D, Pylvanainen, K, Renkonen-Sinisalo, L, Hopper, JL, Win, AK, Haile, RW, Lindor, NM, Gallinger, S, Le Marchand, L, Newcomb, PA, Figueiredo, JC, Thibodeau, SN, Wadt, K, Therkildsen, C, Okkels, H, Ketabi, Z, Moreira, L, Sanchez, A, Serra-Burriel, M, Pineda, M, Navarro, M, Blanco, I, Green, K, Lalloo, F, Crosbie, EJ, Hill, J, Denton, OG, Frayling, IM, Rodland, EA, Vasen, H, Mints, M, Neffa, F, Esperon, P, Alvarez, K, Kariv, R, Rosner, G, Pinero, TA, Gonzalez, ML, Kalfayan, P, Tjandra, D, Winship, IM, Macrae, F, Moeslein, G, Mecklin, J-P, Nielsen, M, and Moller, P

Abstract

PURPOSE: Pathogenic variants affecting MLH1, MSH2, MSH6, and PMS2 cause Lynch syndrome and result in different but imprecisely known cancer risks. This study aimed to provide age and organ-specific cancer risks according to gene and gender and to determine survival after cancer. METHODS: We conducted an international, multicenter prospective observational study using independent test and validation cohorts of carriers of class 4 or class 5 variants. After validation the cohorts were merged providing 6350 participants and 51,646 follow-up years. RESULTS: There were 1808 prospectively observed cancers. Pathogenic MLH1 and MSH2 variants caused high penetrance dominant cancer syndromes sharing similar colorectal, endometrial, and ovarian cancer risks, but older MSH2 carriers had higher risk of cancers of the upper urinary tract, upper gastrointestinal tract, brain, and particularly prostate. Pathogenic MSH6 variants caused a sex-limited trait with high endometrial cancer risk but only modestly increased colorectal cancer risk in both genders. We did not demonstrate a significantly increased cancer risk in carriers of pathogenic PMS2 variants. Ten-year crude survival was over 80% following colon, endometrial, or ovarian cancer. CONCLUSION: Management guidelines for Lynch syndrome may require revision in light of these different gene and gender-specific risks and the good prognosis for the most commonly associated cancers.

Published
2020

26. NGS and Sanger screening for BRCA1/BRCA2, CHEK2 and TP53 in Argentinian high-risk breast/ovarian cancer families and bioinformatic studies: Initial results

Author

Bruno, L., primary, Jablonski, P., additional, Ozkul, M., additional, Mercado, G., additional, Sendoya, J., additional, Llera, A., additional, Núñez, L., additional, Valdez, R., additional, Mansilla, D., additional, Cólica, V., additional, Kalfayan, P., additional, Ruggiero, C., additional, Reyes, M., additional, and Cerretini, R., additional

Published
2017
Full Text
View/download PDF

30. Field Study of the Physical and Chemical Factors Affecting Downhole Scale Deposition in the North Dakota Bakken Formation.

Author

Cenegy, L. M., McAfee, C. A., and Kalfayan, L. J.

Subjects
BAKKEN Formation, HYDRAULIC fracturing, CALCIUM carbonate, OIL wells
Abstract

North Dakota Bakken oil recovery has increased nearly 100-fold over the last 5 years, driven by technological advancements in hydraulic fracturing and completion design. For one North Dakota operator with 150 Bakken producing wells, 22 of the wells have experienced at least one event of severe calcium carbonate scaling in the pump and production tubing, leading to well failure. Bakken wells are completed to a vertical depth of approximately 10,000 ft, with horizontal laterals up to 10,000 ft, and are produced by means of multizone hydraulic fracturing. The operator initially conducted a typical scale-prediction study to reduce well failures and maintain oil production. However, the scale-prediction study was challenging to perform for these Bakken wells because of the variability of the composition of the produced water. Attention then turned to the tracking and analysis of historical field conditions. A "post-mortem" of data collected from all failed wells because of scale was conducted, considering the failure type, date, type of hydraulic-fracturing procedure, pump-intake pressure, scale-inhibitor residual, calcium carbonate scaling index, geographic failure concentration, production time to failure, and cumulative water production to failure. Results showed that 82% of the wells failed during early production (defined as less than 20,000 bbls of water produced and 2 years' production since first oil), after which failures became increasingly rare. This correlated with transient alkalinity spikes in the water analyses attributed to fracturing-fluid flowback during this critical period. Simulated blending of fracturing and formation waters demonstrated that this was the most important period to maintain high scale-inhibitor residuals because of high deposition potentials. This paper discusses the various field and laboratory studies conducted in an effort to understand the problem, the results obtained, and the implications. Also discussed is the evaluation of two scale inhibitors before and after laboratory aging in simulated fracturing fluids. [ABSTRACT FROM AUTHOR]

Published
2013
Full Text
View/download PDF

31. MUTACIÓN FUNDADORA EN SÍNDROME DE LYNCH TIPO II.

Author

CAJAL, ANDREA R., PIÑERO, TAMARA A., VERZURA, ALICIA, SANTINO, JUAN PABLO, SOLANO, ÁNGELA R., KALFAYAN, PABLO G., FERRO, ALEJANDRA, and VACCARO, CARLOS

Abstract

Copyright of Medicina (Buenos Aires) is the property of Medicina (Buenos Aires) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2016

32. Application of Relative Permeability Modifiers To Control Water Cut Following Hydraulic Fracturing in Western Siberia Oil Fields--Russian Case-History Study.

Author

Borodin, E. G., Vakhroushev, P. E., Stolyarov, S. M., and Kalfayan, L. J.

Subjects
PERMEABILITY, HYDRAULIC fracturing, HYDROCARBON reservoirs, ENHANCED oil recovery, PRODUCTION methods in oil fields
Abstract

Because of the geological characteristics and low permeability of Western Siberia hydrocarbon reservoirs, hydraulic fracturing is the most effective method for improving hydrocarbon production. During recent years, the massive fracturing treatments in this area have led to a reduction of well candidates for this type of production- enhancement technique. Currently, the majority of selected wells for fracture stimulation are considered risky because of significant water cut increase after stimulation. The question arises: How to reduce water production while enhancing oil production? This paper reviews 26 case histories exemplifying the use of relatively permeability modifiers (RPMs) in hydraulic fracturing to enhance oil recovery and control water production. Also, results of laboratory studies are included to support the RPM-fracturing concept and -placement techniques. [ABSTRACT FROM AUTHOR]

Published
2008
Full Text
View/download PDF

34. Modulation of immune responses – strategies for optimising vaccines

Author

Dumont, Alain R, Kalfayan, Lina H, and Sékaly, Rafick-P

Abstract

Over decades, vaccination has considerably reduced the morbidity and mortality caused by infectious pathogens. Efficient vaccines conferring long-term protection have been developed despite a minimal understanding of the specific immunological mechanisms involved in this protection. Recent technological advances have provided valuable insights into host–pathogen interactions and considerably improved our knowledge of the effector and regulatory mechanisms behind the innate and adaptive immune responses. With the ability to initiate and manipulate immune responses, it is now possible to develop and optimise safe and effective vaccination strategies using a more rational approach.

Published
2004
Full Text
View/download PDF

36. Amplification of the X‐linked Drosophila chorion gene cluster requires a region upstream from the s38 chorion gene.

Author

Spradling, A.C., de Cicco, D.V., Wakimoto, B.T., Levine, J.F., Kalfayan, L.J., and Cooley, L.

Abstract

Genomic sequences controlling follicle cell‐specific amplification of the X‐linked Drosophila chorion gene cluster were mapped by P element‐mediated transformation. Several DNA fragments containing the s38 gene and flanking sequences induced tissue‐specific amplification, although replication levels were subject to position effects. Deletion analysis identified a 467‐bp region upstream from the s38 transcription start site that contained sequences essential in cis for amplification. The essential region shared 32 bp of imperfect sequence homology with a previously identified region necessary for third chromosome chorion gene cluster amplification. This homologous segment contained a repetitive motif consisting of perfect and imperfect AATAC repeats; it was localized near the boundary of the essential domain since most, but not all, the repeats could be deleted without eliminating transposon‐induced amplification. The repetitive region was not required for developmentally regulated s38 transcription, therefore our results identified at least one element required for amplification but not for chorion gene transcription. The homologous repetitive sequences within the amplification‐essential regions may constitute part of the replication origins used to differentially replicate the two chorion domains during oogenesis.

Published
1987
Full Text
View/download PDF

37. Chondrosarcoma

Author

Boland, Terrence W., Winga, Edward R., and Kalfayan, Bernard

Abstract

A 26-year-old white man underwent amputation of the right lower extremity for a chondrosarcoma of the distal femur. Eleven years later, after a long symptom-free interval, he was hospitalized for rapidly progressive dyspnea, pleuritic chest pain, and hemoptysis resulting from a large pulmonary metastasis that had extended directly to the left atrium via the pulmonary vein. Within 24 hours of hospitalization, obstruction of the left common iliac artery by tumor embolus necessitated embolectomy. This represents the second report of a metastatic chondrosarcoma involving the left atrium. The case presented clinically as an atrial myxoma and disseminated via the systemic circulation with a rapidly downhill course thereafter.

Published
1977
Full Text
View/download PDF

38. Molecular localization and developmental expression of the otu locus of Drosophila melanogaster

Author

Mulligan, P K, Mohler, J D, and Kalfayan, L J

Abstract

The female-sterile ovarian tumor gene, otu, is located in cytological region 7F1 on the Drosophila melanogaster chromosome map. We have mapped the gene at the molecular level by using four dysgenic alleles and two revertant derivatives of these alleles as well as an ethyl methanesulfonate-induced allele. The insertional (dysgenic) changes were all associated with one restriction fragment, and its size was restored after phenotypic reversion. One ethyl methanesulfonate-induced allele had a deletion in the restriction fragment adjacent (distal) to the fragment altered in the insertional alleles. These two restriction fragments were immediately adjacent to the s38 chorion gene. Associated with the two altered restriction fragments were two RNA species, an abundant 3.2-kilobase (kb) poly(A)+ RNA and a minor 4.0-kb RNA. Several other less-abundant RNA species were detectable with more-sensitive single-stranded RNA probes. The otu gene was transcribed proximal to distal relative to the centromere; this was opposite to the direction of transcription of the adjacent s38 gene. During development, the 3.2-kb RNA was absent in larvae, first appeared in the pupal stages, and persisted in adult females, in which it was most prevalent in the ovaries. The DNA that hybridized to the 3.2-kb ovarian RNA hybridized to four different RNAs found in the testes but not in the rest of the adult male. These testis-enriched RNAs were transcribed from the same strand of DNA as the ovarian transcripts.

Published
1988
Full Text
View/download PDF

39. Sequence and structure of the Drosophila melanogaster ovarian tumor gene and generation of an antibody specific for the ovarian tumor protein

Author

Steinhauer, W R, Walsh, R C, and Kalfayan, L J

Abstract

Sequencing cDNA and genomic DNA from the ovarian tumor gene revealed a gene with seven introns spanning 4.5 kilobases. The proline-rich, hydrophilic otu protein is novel. An antibody prepared to a beta-gal-otu fusion protein recognized a 110-kilodalton ovarian protein which was altered in the ovaries of otu gene mutants.

Published
1989
Full Text
View/download PDF

40. Analysis of transcriptional regulation of the s38 chorion gene of Drosophila by P element-mediated transformation

Author

Kalfayan, Laura, Wakimoto, Barbara, and Spradling, Allan

Abstract

Transcriptional regulation of the s38 chorion gene was studied using P element-mediated germline transformation. A 5–27 kb DNA fragment containing the s38 gene and 5′- and 3′-flanking sequences, was tested for its ability to be transcribed with correct developmental specificity. Five single-insert transformed lines were generated by microinjection of this DNA fragment cloned into a marked P element transformation vector. In each line, the transformed gene was transcribed according to the precise developmental pattern followed by the native s38 gene. The 1– 3 kb at the 5′ end of this tested fragment was fused to the E. coli lac z gene. This fragment was also capable of initiating transcription of E. coli lac Z RNA with the developmental profile of the native s38 gene. In vitro deletion studies are underway to determine which sequences in the 1–3 kb fragment are necessary for regulating the developmental expression of the gene.

Published
1984
Full Text
View/download PDF

41. STRUCTURAL CHANGES PRODUCED IN BROWN-PEARCE CARCINOMA CELLS BY MEANS OF A SPECIFIC ANTIBODY AND COMPLEMENT

Author

Kalfayan, Bernard and Kidd, John G.

Abstract

Structural changes were regularly observed in Brown-Pearce rabbit carcinoma cells that had been brought into contact, in the presence of complement, with rabbit serum containing an antibody that reacts specifically with a distinctive sedimentable constituent of the carcinoma cells. The cellular changes appeared rapidly and were accompanied by an equally rapid loss of viability. The structural changes, as disclosed by histological and cytological methods, including phase contrast microscopy, were described in detail and illustrated. Essentially they were characterized by the entrance of considerable quantities of fluid into the cell, together with swelling and disorganization of its cytoplasm, vesiculation and rupture of the bulk of its cytoplasmic particles, and rapid and virtually complete loss of cytoplasmic basophilism. The plasma membranes, though stretched thin about the swollen cytoplasm of the altered cells, and otherwise changed also, remained unruptured during many hours' observation. The nuclei of the altered cells, however, remained relatively un-changed, their membranes persisting unruptured and their sap remaining wholly transparent and undiminished in amount for long periods, while within it the chromatin retained its staining properties, though sometimes becoming clumped and marginated; by contrast, the nucleoli of the treated cells promptly shrank and lost much of their affinity for the basic dyes. The experimental conditions under which the structural changes became manifest were given in detail, together with an analysis of the findings and brief mention of certain of their implications for cytology and immunology.

Published
1953
Full Text
View/download PDF

42. Ovarian Twin Pregnancy

Author

KALFAYAN, BERNARD and GUNDERSEN, JEROME H.

Abstract

A case of ovarian twin pregnancy is reported. Three other cases have been previously reported. All 4 cases were in parous women in their thirties.

Published
1980

47. New-Frontier Reservoirs II.

Author

Kalfayan, Leonard

Subjects
OIL well drilling, RESERVOIRS
Abstract

An introduction is presented in which the editor discusses the advancing efforts in enhancing production of well completions in tight reservoirs.

Published
2016
Full Text
View/download PDF

48. TIGHT RESERVOIRS.

Author

Kalfayan, Leonard

Subjects
PETROLEUM reserves, ENHANCED oil recovery, RESERVOIRS, HYDROCARBON reservoirs, OIL fields
Abstract

The author talks about the need to develop and implement the means to increase oil reserves recovery. Topics covered include the attention given to understanding fluid-flow behavior in tight and unconventional reservoirs, the variation in estimates of tight-reservoir hydrocarbon reserves and the opportunity provided by the business environment in reaching more-aggressive targets in recovery.

Published
2015
Full Text
View/download PDF

49. TIGHT RESERVOIRS.

Author

Kalfayan, Leonard

Subjects
RESERVOIRS, SHALE gas reservoirs, GAS reservoirs
Abstract

An introduction to a special section of the journal is presented in which the editor discusses the unconventional, tight oil and gas, and shale developments.

Published
2014
Full Text
View/download PDF

50. No Difference in Penetrance between Truncating and Missense/Aberrant Splicing Pathogenic Variants in MLH1 and MSH2: A Prospective Lynch Syndrome Database Study

Author

Guy Rosner, Walter Hernán Pavicic, Claudia Perne, Carlos A. Vaccaro, Elke Holinski-Feder, Leticia Moreira, Wouter H. de Vos tot Nederveen Cappel, Stefan Aretz, Einar Andreas Rødland, Polly A. Newcomb, Karin Alvarez, Ariadna Sánchez, Lone Sunde, Wolff Schmiegel, Joan Brunet, Marc S. Greenblatt, Christina Therkildsen, Karl Heinimann, Lior H. Katz, Fiona Lalloo, Jürgen Weitz, Anna Lepistö, Rolf H. Sijmons, Maartje Nielsen, Hans F. A. Vasen, Deepak Vangala, Monika Morak, Jukka-Pekka Mecklin, Toni T. Seppälä, Sigve Nakken, Stefanie Holzapfel, Douglas Tjandra, Finlay A. Macrae, Päivi Peltomäki, Daniel D. Buchanan, Stephen N. Thibodeau, Adriana Della Valle, James Hill, Annika Lindblom, Bernardo Bonanni, Reinhard Büttner, Francisco López-Köstner, Giulia Martina Cavestro, John Burn, Emma J Crosbie, Lucio Bertario, Sanne W. ten Broeke, D. G. R. Evans, Kate Green, Verena Steinke-Lange, Eivind Hovig, Miquel Serra-Burriel, Francesc Balaguer, Kirsi Pylvänäinen, Gabriela Möslein, Revital Kariv, Thomas Hansen, Maria Grazia Tibiletti, Tamara Alejandra Piñero, Nils Rahner, Magnus von Knebel Doeberitz, Ingrid Winship, Nathan Gluck, Lars Joachim Lindberg, Christoph Engel, Mev Dominguez-Valentin, John-Paul Plazzer, Julian R. Sampson, Marta Pineda, John L. Hopper, Pablo Kalfayan, Heike Görgens, Aung Ko Win, Steven Gallinger, Loic Le Marchand, Mark A. Jenkins, Markus Loeffler, Noralane M. Lindor, Inge Bernstein, Pål Møller, Laura Renkonen-Sinisalo, Florencia Neffa, Huw Thomas, Gabriel Capellá, Jane C. Figueiredo, Miriam Mints, Patricia Esperon, Matilde Navarro, Robert Hüneburg, Guided Treatment in Optimal Selected Cancer Patients (GUTS), HUS Abdominal Center, Department of Surgery, Genome-Scale Biology (GSB) Research Program, II kirurgian klinikka, ATG - Applied Tumor Genomics, Research Programs Unit, Clinicum, Department of Medical and Clinical Genetics, Dominguez-Valentin, M., Plazzer, J. -P., Sampson, J. R., Engel, C., Aretz, S., Jenkins, M. A., Sunde, L., Bernstein, I., Capella, G., Balaguer, F., Macrae, F., Winship, I. M., Thomas, H., Evans, D. G., Burn, J., Greenblatt, M., de Vos tot Nederveen Cappel, W. H., Sijmons, R. H., Nielsen, M., Bertario, L., Bonanni, B., Tibiletti, M. G., Cavestro, G. M., Lindblom, A., Della Valle, A., Lopez-Kostner, F., Alvarez, K., Gluck, N., Katz, L., Heinimann, K., Vaccaro, C. A., Nakken, S., Hovig, E., Green, K., Lalloo, F., Hill, J., Vasen, H. F. A., Perne, C., Buttner, R., Gorgens, H., Holinski-Feder, E., Morak, M., Holzapfel, S., Huneburg, R., Doeberitz, M. V. K., Loeffler, M., Rahner, N., Weitz, J., Steinke-Lange, V., Schmiegel, W., Vangala, D., Crosbie, E. J., Pineda, M., Navarro, M., Brunet, J., Moreira, L., Sanchez, A., Serra-Burriel, M., Mints, M., Kariv, R., Rosner, G., Pinero, T. A., Pavicic, W. H., Kalfayan, P., Ten Broeke, S. W., Mecklin, J. -P., Pylvanainen, K., Renkonen-Sinisalo, L., Lepisto, A., Peltomaki, P., Hopper, J. L., Win, A. K., Buchanan, D. D., Lindor, N. M., Gallinger, S., Marchand, L. L., Newcomb, P. A., Figueiredo, J. C., Thibodeau, S. N., Therkildsen, C., Hansen, T. V. O., Lindberg, L., Rodland, E. A., Neffa, F., Esperon, P., Tjandra, D., Moslein, G., Seppala, T. T., and Moller, P.

Subjects
cancer incidence, 0302 clinical medicine, Malalties hereditàries, Missense mutation, 8Q23.3, Càncer, Cancer, Genetics, 0303 health sciences, medicine.diagnostic_test, Factors de risc en les malalties, MISMATCH REPAIR GENES, MLH1, General Medicine, Penetrance, Lynch syndrome, 3. Good health, syöpägeenit, 030220 oncology & carcinogenesis, Medicine, syöpätaudit, ilmaantuvuus, Genetic diseases, congenital, hereditary, and neonatal diseases and abnormalities, missense, 11Q23.1, Risk factors in diseases, CANCER-RISK, Article, aberrant splicing, 03 medical and health sciences, AGE, medicine, Genetic predisposition, ddc:610, MSH2, Lynchin oireyhtymä, penetrance, 030304 developmental biology, Genetic testing, truncating, perinnölliset taudit, business.industry, MUTATIONS, HMSH2, nutritional and metabolic diseases, medicine.disease, digestive system diseases, 3121 General medicine, internal medicine and other clinical medicine, business
Abstract

Background. Lynch syndrome is the most common genetic predisposition for hereditary cancer. Carriers of pathogenic changes in mismatch repair (MMR) genes have an increased risk of developing colorectal (CRC), endometrial, ovarian, urinary tract, prostate, and other cancers, depending on which gene is malfunctioning. In Lynch syndrome, differences in cancer incidence (penetrance) according to the gene involved have led to the stratification of cancer surveillance. By contrast, any differences in penetrance determined by the type of pathogenic variant remain unknown. Objective. To determine cumulative incidences of cancer in carriers of truncating and missense or aberrant splicing pathogenic variants of the MLH1 and MSH2 genes. Methods. Carriers of pathogenic variants of MLH1 (path_MLH1) and MSH2 (path_MSH2) genes filed in the Prospective Lynch Syndrome Database (PLSD) were categorized as truncating or missense/aberrant splicing according to the InSiGHT criteria for pathogenicity. Results. Among 5199 carriers, 1045 had missense or aberrant splicing variants, and 3930 had truncating variants. Prospective observation years for the two groups were 8205 and 34,141 years, respectively, after which there were no significant differences in incidences for cancer overall or for colorectal cancer or endometrial cancers separately. Conclusion. Truncating and missense or aberrant splicing pathogenic variants were associated with similar average cumulative incidences of cancer in carriers of path MLH1 and path_MSH2.

Published
2021

Catalog

Books, media, physical & digital resources
See catalog results