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1. Deliberation, Difference and Democratic Practice in Malawi

Author: Fletcher O. Ziwoya
Subjects: Malawi, Grassroots, Democracy, Deliberation, Political theory, JC11-607
Abstract: Since the introduction of multiparty politics in Malawi in 1994, grassroots communities have been engaged in dialogue on issues affecting democratic and national development processes in the country. This paper employs Martin Heidegger’s hermeneutics and James Paul Gee’s discourse analysis to examine community views regarding public deliberation as a form of political participation in Malawi. Heideggerian hermeneutics provides a foundation for Hans-Gorg Gadamer’s principles of philosophical hermeneutics that are limited to historicism, non-authorial intention, and the fusion of horizons. This study adopted Heideggarian phenomenology of Dasein (“being there”) as an interpretive framework to analyze interview text. This paper argues that the main issue for the grassroots communities in Malawi goes beyond democratic participation. Central to the interpretation of the communal dialogue is an understanding of the socio-cultural, economic and political atmosphere within which the Malawian grassroots social actors perform. As a way of understanding how citizens at the grassroots frame democratic participation in a volatile atmosphere, a study was conducted involving 30 citizens ranging from local villagers to government officials in select local councils in Malawi. This paper documents the analysis of citizen sentiments regarding some democratization problems facing local councils and their solutions. The study was guided by three main research questions: 1) What does civic participation mean for the citizens? 2) How do the citizens define social problems? 3) What needed to be done to facilitate effective participation by citizens?
Published: 2016
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2. Understanding the genetic complexity of puberty timing across the allele frequency spectrum

Author: Kentistou, KA, Kaisinger, LR, Stankovic, S, Vaudel, M, Mendes de Oliveira, E, Messina, A, Walters, RG, Liu, X, Busch, AS, Helgason, H, Thompson, DJ, Santoni, F, Petricek, KM, Zouaghi, Y, Huang-Doran, I, Gudbjartsson, DF, Bratland, E, Lin, K, Gardner, EJ, Zhao, Y, Jia, RY, Terao, C, Riggan, MJ, Bolla, MK, Yazdanpanah, M, Yazdanpanah, N, Bradfield, JP, Broer, L, Campbell, A, Chasman, DI, Cousminer, DL, Franceschini, N, Franke, LH, Girotto, G, He, C, Järvelin, M-R, Joshi, PK, Kamatani, Y, Karlsson, R, Luan, J, Lunetta, KL, Mägi, R, Mangino, M, Medland, SE, Meisinger, C, Noordam, R, Nutile, T, Concas, MP, Polašek, O, Porcu, E, Ring, SM, Sala, C, Smith, AV, Tanaka, T, van der Most, PJ, Vitart, V, Wang, CA, Willemsen, G, Zygmunt, M, Ahearn, TU, Andrulis, IL, Anton-Culver, H, Antoniou, AC, Auer, PL, Barnes, CLK, Beckmann, MW, Berrington de Gonzalez, A, Bogdanova, NV, Bojesen, SE, Brenner, H, Buring, JE, Canzian, F, Chang-Claude, J, Couch, FJ, Cox, A, Crisponi, L, Czene, K, Daly, MB, Demerath, EW, Dennis, J, Devilee, P, De Vivo, I, Dörk, T, Dunning, AM, Dwek, M, Eriksson, JG, Fasching, PA, Fernandez-Rhodes, L, Ferreli, L, Fletcher, O, Gago-Dominguez, M, García-Closas, M, García-Sáenz, JA, González-Neira, A, Grallert, H, Guénel, P, Haiman, CA, Hall, P, Hamann, U, Hakonarson, H, Hart, RJ, Hickey, M, Hooning, MJ, Hoppe, R, Hopper, JL, Hottenga, J-J, Hu, FB, Huebner, H, Hunter, DJ, ABCTB Investigators, Jernström, H, John, EM, Karasik, D, Khusnutdinova, EK, Kristensen, VN, Lacey, JV, Lambrechts, D, Launer, LJ, Lind, PA, Lindblom, A, Magnusson, PKE, Mannermaa, A, McCarthy, MI, Meitinger, T, Menni, C, Michailidou, K, Millwood, IY, Milne, RL, Montgomery, GW, Nevanlinna, H, Nolte, IM, Nyholt, DR, Obi, N, O'Brien, KM, Offit, K, Oldehinkel, AJ, Ostrowski, SR, Palotie, A, Pedersen, OB, Peters, A, Pianigiani, G, Plaseska-Karanfilska, D, Pouta, A, Pozarickij, A, Radice, P, Rennert, G, Rosendaal, FR, Ruggiero, D, Saloustros, E, Sandler, DP, Schipf, S, Schmidt, CO, Schmidt, MK, Small, K, Spedicati, B, Stampfer, M, Stone, J, Tamimi, RM, Teras, LR, Tikkanen, E, Turman, C, Vachon, CM, Wang, Q, Winqvist, R, Wolk, A, Zemel, BS, Zheng, W, van Dijk, KW, Alizadeh, BZ, Bandinelli, S, Boerwinkle, E, Boomsma, DI, Ciullo, M, Chenevix-Trench, G, Cucca, F, Esko, T, Gieger, C, Grant, SFA, Gudnason, V, Hayward, C, Kolčić, I, Kraft, P, Lawlor, DA, Martin, NG, Nøhr, EA, Pedersen, NL, Pennell, CE, Ridker, PM, Robino, A, Snieder, H, Sovio, U, Spector, TD, Stöckl, D, Sudlow, C, Timpson, NJ, Toniolo, D, Uitterlinden, A, Ulivi, S, Völzke, H, Wareham, NJ, Widen, E, Wilson, JF, Lifelines Cohort Study, Danish Blood Donor Study, Ovarian Cancer Association Consortium, Breast Cancer Association Consortium, Biobank Japan Project, China Kadoorie Biobank Collaborative Group, Pharoah, PDP, Li, L, Easton, DF, Njølstad, PR, Sulem, P, Murabito, JM, Murray, A, Manousaki, D, Juul, A, Erikstrup, C, Stefansson, K, Horikoshi, M, Chen, Z, Farooqi, IS, Pitteloud, N, Johansson, S, Day, FR, Perry, JRB, Ong, KK, Kentistou, KA, Kaisinger, LR, Stankovic, S, Vaudel, M, Mendes de Oliveira, E, Messina, A, Walters, RG, Liu, X, Busch, AS, Helgason, H, Thompson, DJ, Santoni, F, Petricek, KM, Zouaghi, Y, Huang-Doran, I, Gudbjartsson, DF, Bratland, E, Lin, K, Gardner, EJ, Zhao, Y, Jia, RY, Terao, C, Riggan, MJ, Bolla, MK, Yazdanpanah, M, Yazdanpanah, N, Bradfield, JP, Broer, L, Campbell, A, Chasman, DI, Cousminer, DL, Franceschini, N, Franke, LH, Girotto, G, He, C, Järvelin, M-R, Joshi, PK, Kamatani, Y, Karlsson, R, Luan, J, Lunetta, KL, Mägi, R, Mangino, M, Medland, SE, Meisinger, C, Noordam, R, Nutile, T, Concas, MP, Polašek, O, Porcu, E, Ring, SM, Sala, C, Smith, AV, Tanaka, T, van der Most, PJ, Vitart, V, Wang, CA, Willemsen, G, Zygmunt, M, Ahearn, TU, Andrulis, IL, Anton-Culver, H, Antoniou, AC, Auer, PL, Barnes, CLK, Beckmann, MW, Berrington de Gonzalez, A, Bogdanova, NV, Bojesen, SE, Brenner, H, Buring, JE, Canzian, F, Chang-Claude, J, Couch, FJ, Cox, A, Crisponi, L, Czene, K, Daly, MB, Demerath, EW, Dennis, J, Devilee, P, De Vivo, I, Dörk, T, Dunning, AM, Dwek, M, Eriksson, JG, Fasching, PA, Fernandez-Rhodes, L, Ferreli, L, Fletcher, O, Gago-Dominguez, M, García-Closas, M, García-Sáenz, JA, González-Neira, A, Grallert, H, Guénel, P, Haiman, CA, Hall, P, Hamann, U, Hakonarson, H, Hart, RJ, Hickey, M, Hooning, MJ, Hoppe, R, Hopper, JL, Hottenga, J-J, Hu, FB, Huebner, H, Hunter, DJ, ABCTB Investigators, Jernström, H, John, EM, Karasik, D, Khusnutdinova, EK, Kristensen, VN, Lacey, JV, Lambrechts, D, Launer, LJ, Lind, PA, Lindblom, A, Magnusson, PKE, Mannermaa, A, McCarthy, MI, Meitinger, T, Menni, C, Michailidou, K, Millwood, IY, Milne, RL, Montgomery, GW, Nevanlinna, H, Nolte, IM, Nyholt, DR, Obi, N, O'Brien, KM, Offit, K, Oldehinkel, AJ, Ostrowski, SR, Palotie, A, Pedersen, OB, Peters, A, Pianigiani, G, Plaseska-Karanfilska, D, Pouta, A, Pozarickij, A, Radice, P, Rennert, G, Rosendaal, FR, Ruggiero, D, Saloustros, E, Sandler, DP, Schipf, S, Schmidt, CO, Schmidt, MK, Small, K, Spedicati, B, Stampfer, M, Stone, J, Tamimi, RM, Teras, LR, Tikkanen, E, Turman, C, Vachon, CM, Wang, Q, Winqvist, R, Wolk, A, Zemel, BS, Zheng, W, van Dijk, KW, Alizadeh, BZ, Bandinelli, S, Boerwinkle, E, Boomsma, DI, Ciullo, M, Chenevix-Trench, G, Cucca, F, Esko, T, Gieger, C, Grant, SFA, Gudnason, V, Hayward, C, Kolčić, I, Kraft, P, Lawlor, DA, Martin, NG, Nøhr, EA, Pedersen, NL, Pennell, CE, Ridker, PM, Robino, A, Snieder, H, Sovio, U, Spector, TD, Stöckl, D, Sudlow, C, Timpson, NJ, Toniolo, D, Uitterlinden, A, Ulivi, S, Völzke, H, Wareham, NJ, Widen, E, Wilson, JF, Lifelines Cohort Study, Danish Blood Donor Study, Ovarian Cancer Association Consortium, Breast Cancer Association Consortium, Biobank Japan Project, China Kadoorie Biobank Collaborative Group, Pharoah, PDP, Li, L, Easton, DF, Njølstad, PR, Sulem, P, Murabito, JM, Murray, A, Manousaki, D, Juul, A, Erikstrup, C, Stefansson, K, Horikoshi, M, Chen, Z, Farooqi, IS, Pitteloud, N, Johansson, S, Day, FR, Perry, JRB, and Ong, KK
Abstract: Pubertal timing varies considerably and is associated with later health outcomes. We performed multi-ancestry genetic analyses on ~800,000 women, identifying 1,080 signals for age at menarche. Collectively, these explained 11% of trait variance in an independent sample. Women at the top and bottom 1% of polygenic risk exhibited ~11 and ~14-fold higher risks of delayed and precocious puberty, respectively. We identified several genes harboring rare loss-of-function variants in ~200,000 women, including variants in ZNF483, which abolished the impact of polygenic risk. Variant-to-gene mapping approaches and mouse gonadotropin-releasing hormone neuron RNA sequencing implicated 665 genes, including an uncharacterized G-protein-coupled receptor, GPR83, which amplified the signaling of MC3R, a key nutritional sensor. Shared signals with menopause timing at genes involved in DNA damage response suggest that the ovarian reserve might signal centrally to trigger puberty. We also highlight body size-dependent and independent mechanisms that potentially link reproductive timing to later life disease.
Published: 2024

3. FGF receptor genes and breast cancer susceptibility: results from the Breast Cancer Association Consortium.

Author: Agarwal, D, Pineda, S, Michailidou, K, Herranz, J, Pita, G, Moreno, L, Alonso, M, Dennis, J, Wang, Q, Bolla, M, Meyer, K, Menéndez-Rodríguez, P, Hardisson, D, Mendiola, M, González-Neira, A, Lindblom, A, Margolin, S, Swerdlow, A, Orr, N, Jones, M, Matsuo, K, Ito, H, Iwata, H, Kondo, N, Hartman, M, Hui, M, Lim, W, Iau, P, Sawyer, E, Tomlinson, I, Kerin, M, Miller, N, Kang, D, Choi, J-Y, Park, S, Noh, D-Y, Hopper, J, Schmidt, D, Makalic, E, Southey, M, Teo, S, Yip, C, Sivanandan, K, Tay, W-T, Brauch, H, Brüning, T, Hamann, U, Dunning, A, Shah, M, Andrulis, I, Knight, J, Glendon, G, Tchatchou, S, Schmidt, M, Broeks, A, Rosenberg, E, vant Veer, L, Fasching, P, Renner, S, Ekici, A, Beckmann, M, Shen, C-Y, Hsiung, C-N, Yu, J-C, Hou, M-F, Blot, W, Cai, Q, Tseng, C-C, Van Den Berg, D, Stram, D, Cox, A, Brock, I, Reed, M, Muir, K, Lophatananon, A, Stewart-Brown, S, Siriwanarangsan, P, Zheng, W, Deming-Halverson, S, Shrubsole, M, Long, J, Shu, X-O, Lu, W, Gao, Y-T, Zhang, B, Radice, P, Peterlongo, P, Manoukian, S, Mariette, F, Sangrajrang, S, McKay, J, Couch, F, Toland, A, Yannoukakos, D, Fletcher, O, Johnson, N, dos Santos Silva, I, Peto, J, Marme, F, and Burwinkel, B
Subjects: Breast Neoplasms, Case-Control Studies, Female, Genetic Predisposition to Disease, Genetic Variation, Genome-Wide Association Study, Genotype, Humans, Polymorphism, Single Nucleotide, Receptor, Fibroblast Growth Factor, Type 1, Receptor, Fibroblast Growth Factor, Type 2, Receptor, Fibroblast Growth Factor, Type 3, Receptor, Fibroblast Growth Factor, Type 4, Receptor, Fibroblast Growth Factor, Type 5
Abstract: BACKGROUND: Breast cancer is one of the most common malignancies in women. Genome-wide association studies have identified FGFR2 as a breast cancer susceptibility gene. Common variation in other fibroblast growth factor (FGF) receptors might also modify risk. We tested this hypothesis by studying genotyped single-nucleotide polymorphisms (SNPs) and imputed SNPs in FGFR1, FGFR3, FGFR4 and FGFRL1 in the Breast Cancer Association Consortium. METHODS: Data were combined from 49 studies, including 53 835 cases and 50 156 controls, of which 89 050 (46 450 cases and 42 600 controls) were of European ancestry, 12 893 (6269 cases and 6624 controls) of Asian and 2048 (1116 cases and 932 controls) of African ancestry. Associations with risk of breast cancer, overall and by disease sub-type, were assessed using unconditional logistic regression. RESULTS: Little evidence of association with breast cancer risk was observed for SNPs in the FGF receptor genes. The strongest evidence in European women was for rs743682 in FGFR3; the estimated per-allele odds ratio was 1.05 (95% confidence interval=1.02-1.09, P=0.0020), which is substantially lower than that observed for SNPs in FGFR2. CONCLUSION: Our results suggest that common variants in the other FGF receptors are not associated with risk of breast cancer to the degree observed for FGFR2.
Published: 2014

4. Genetic Predisposition to In Situ and Invasive Lobular Carcinoma of the Breast

Author: Ashworth, Alan, Sawyer, E, Roylance, R, Petridis, C, Brook, MN, Nowinski, S, Papouli, E, Fletcher, O, Pinder, S, Hanby, A, and Kohut, K
Abstract: Invasive lobular breast cancer (ILC) accounts for 10-15% of all invasive breast carcinomas. It is generally ER positive (ER+) and often associated with lobular carcinoma in situ (LCIS). Genome-wide association studies have identified more than 70 common po
Published: 2014

5. Gross Morphometry, Histomorphometry, and Immunohistochemistry Confirm Early and Persistent Jejunal Crypt Hyperplasia in Poults with Enteritis and Depressed Growth

Author: Fletcher, O. J., Mansell, R., Martin, M. P., Borst, L. B., Barnes, H. John, and Gonzalez, L. M.
Published: 2018

6. Evidence of Gene-Environment Interactions between Common Breast Cancer Susceptibility Loci and Established Environmental Risk Factors

Author: Nickels, S, Truong, T, Hein, R, Stevens, K, Buck, K, Behrens, S, Eilber, U, Schmidt, M, Häberle, L, Vrieling, A, Gaudet, M, Figueroa, J, Schoof, N, Spurdle, AB, Rudolph, A, Fasching, PA, Hopper, JL, Makalic, E, Schmidt, DF, Southey, MC, Beckmann, MW, Ekici, AB, Fletcher, O, Gibson, L, dos Santos Silva, I, Peto, J, Humphreys, MK, Wang, J, Cordina-Duverger, E, Menegaux, F, Nordestgaard, BG, Bojesen, SE, Lanng, C, Anton-Culver, H, Ziogas, A, Bernstein, L, Clarke, CA, Brenner, H, Müller, H, Arndt, V, Stegmaier, C, Brauch, H, Brüning, T, Harth, V, Mannermaa, A, Kataja, V, Kosma, VM, Hartikainen, JM, Lambrechts, D, Smeets, D, Neven, P, Paridaens, R, Flesch-Janys, D, Obi, N, Wang-Gohrke, S, Couch, FJ, Olson, JE, Vachon, CM, Giles, GG, Severi, G, Baglietto, L, Offit, K, John, EM, Miron, A, Andrulis, IL, Knight, JA, Glendon, G, Mulligan, AM, Chanock, SJ, Lissowska, J, Liu, J, Cox, A, Cramp, H, Connley, D, Balasubramanian, S, Dunning, AM, Shah, M, Trentham-Dietz, A, Newcomb, P, Titus, L, Egan, K, Cahoon, EK, and Rajaraman, P
Abstract: Various common genetic susceptibility loci have been identified for breast cancer; however, it is unclear how they combine with lifestyle/environmental risk factors to influence risk. We undertook an international collaborative study to assess gene-environment interaction for risk of breast cancer. Data from 24 studies of the Breast Cancer Association Consortium were pooled. Using up to 34,793 invasive breast cancers and 41,099 controls, we examined whether the relative risks associated with 23 single nucleotide polymorphisms were modified by 10 established environmental risk factors (age at menarche, parity, breastfeeding, body mass index, height, oral contraceptive use, menopausal hormone therapy use, alcohol consumption, cigarette smoking, physical activity) in women of European ancestry. We used logistic regression models stratified by study and adjusted for age and performed likelihood ratio tests to assess gene-environment interactions. All statistical tests were two-sided. We replicated previously reported potential interactions between LSP1-rs3817198 and parity (Pinteraction= 2.4×10-6) and between CASP8-rs17468277 and alcohol consumption (Pinteraction= 3.1×10-4). Overall, the per-allele odds ratio (95% confidence interval) for LSP1-rs3817198 was 1.08 (1.01-1.16) in nulliparous women and ranged from 1.03 (0.96-1.10) in parous women with one birth to 1.26 (1.16-1.37) in women with at least four births. For CASP8-rs17468277, the per-allele OR was 0.91 (0.85-0.98) in those with an alcohol intake of
Published: 2013

7. Genome-wide association study identifies a common variant in RAD51B associated with male breast cancer risk.

Author: Ashworth, Alan, Orr, N, Lemnrau, A, Cooke, R, Fletcher, O, Tomczyk, K, Jones, M, Johnson, N, Lord, CJ, Mitsopoulos, C, and Zvelebil, M
Abstract: We conducted a genome-wide association study of male breast cancer comprising 823 cases and 2,795 controls of European ancestry, with validation in independent sample sets totaling 438 cases and 474 controls. A SNP in RAD51B at 14q24.1 was significantly as
Published: 2012

8. Assessing interactions between the associations of common genetic susceptibility variants, reproductive history and body mass index with breast cancer risk in the breast cancer association consortium: A combined case-control study

Author: Milne, RL, Gaudet, MM, Spurdle, AB, Fasching, PA, Couch, FJ, Benítez, J, Arias Pérez, JI, Zamora, MP, Malats, N, dos Santos Silva, I, Gibson, LJ, Fletcher, O, Johnson, N, Anton-Culver, H, Ziogas, A, Figueroa, J, Brinton, L, Sherman, ME, Lissowska, J, Hopper, JL, Dite, GS, Apicella, C, Southey, MC, Sigurdson, AJ, Linet, MS, Schonfeld, SJ, Freedman, DM, Mannermaa, A, Kosma, VM, Kataja, V, Auvinen, P, Andrulis, IL, Glendon, G, Knight, JA, Weerasooriya, N, Cox, A, Reed, MWR, Cross, SS, Dunning, AM, Ahmed, S, Shah, M, Brauch, H, Ko, YD, Brüning, T, Lambrechts, D, Reumers, J, Smeets, A, Wang-Gohrke, S, Hall, P, Czene, K, Liu, J, Irwanto, AK, Chenevix-Trench, G, Holland, H, Fab, KC, Giles, GG, Baglietto, L, Severi, G, Bojensen, SE, Nordestgaard, BG, Flyger, H, John, EM, West, DW, Whittemore, AS, Vachon, C, Olson, JE, Fredericksen, Z, Kosel, M, Hein, R, Vrieling, A, Flesch-Janys, D, Heinz, J, Beckmann, MW, Heusinger, K, Ekici, AB, Haeberle, L, Humphreys, MK, Morrison, J, Easton, DF, and Pharoah, PD
Abstract: Introduction: Several common breast cancer genetic susceptibility variants have recently been identified. We aimed to determine how these variants combine with a subset of other known risk factors to influence breast cancer risk in white women of European ancestry using case-control studies participating in the Breast Cancer Association Consortium.Methods: We evaluated two-way interactions between each of age at menarche, ever having had a live birth, number of live births, age at first birth and body mass index (BMI) and each of 12 single nucleotide polymorphisms (SNPs) (10q26-rs2981582 (FGFR2), 8q24-rs13281615, 11p15-rs3817198 (LSP1), 5q11-rs889312 (MAP3K1), 16q12-rs3803662 (TOX3), 2q35-rs13387042, 5p12-rs10941679 (MRPS30), 17q23-rs6504950 (COX11), 3p24-rs4973768 (SLC4A7), CASP8-rs17468277, TGFB1-rs1982073 and ESR1-rs3020314). Interactions were tested for by fitting logistic regression models including per-allele and linear trend main effects for SNPs and risk factors, respectively, and single-parameter interaction terms for linear departure from independent multiplicative effects.Results: These analyses were applied to data for up to 26,349 invasive breast cancer cases and up to 32,208 controls from 21 case-control studies. No statistical evidence of interaction was observed beyond that expected by chance. Analyses were repeated using data from 11 population-based studies, and results were very similar.Conclusions: The relative risks for breast cancer associated with the common susceptibility variants identified to date do not appear to vary across women with different reproductive histories or body mass index (BMI). The assumption of multiplicative combined effects for these established genetic and other risk factors in risk prediction models appears justified. © 2010 Milne et al.; licensee BioMed Central Ltd.
Published: 2010

9. Comparative Pathology of Chickens Experimentally Inoculated with Avian Influenza Viruses of Low and High Pathogenicity

Author: Mo, I. P., Brugh, M., Fletcher, O. J., Rowland, G. N., and Swayne, D. E.
Published: 1997
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10. Aggregation tests identify new gene associations with breast cancer in populations with diverse ancestry

Author: Mueller, SH, Lai, AG, Valkovskaya, M, Michailidou, K, Bolla, MK, Wang, Q, Dennis, J, Lush, M, Abu-Ful, Z, Ahearn, TU, Andrulis, IL, Anton-Culver, H, Antonenkova, NN, Arndt, V, Aronson, KJ, Augustinsson, A, Baert, T, Freeman, LEB, Beckmann, MW, Behrens, S, Benitez, J, Bermisheva, M, Blomqvist, C, Bogdanova, N, Bojesen, SE, Bonanni, B, Brenner, H, Brucker, SY, Buys, SS, Castelao, JE, Chan, TL, Chang-Claude, J, Chanock, SJ, Choi, J-Y, Chung, WK, Colonna, S, Cornelissen, S, Couch, FJ, Czene, K, Daly, MB, Devilee, P, Dork, T, Dossus, L, Dwek, M, Eccles, DM, Ekici, AB, Eliassen, AH, Engel, C, Evans, DG, Fasching, PA, Fletcher, O, Flyger, H, Gago-Dominguez, M, Gao, Y-T, Garcia-Closas, M, Garcia-Saenz, JA, Genkinger, J, Gentry-Maharaj, A, Grassmann, F, Guenel, P, Gundert, M, Haeberle, L, Hahnen, E, Haiman, CA, Hakansson, N, Hall, P, Harkness, EF, Harrington, PA, Hartikainen, JM, Hartman, M, Hein, A, Ho, W-K, Hooning, MJ, Hoppe, R, Hopper, JL, Houlston, RS, Howell, A, Hunter, DJ, Huo, D, Investigators, A, Ito, H, Iwasaki, M, Jakubowska, A, Janni, W, John, EM, Jones, ME, Jung, A, Kaaks, R, Kang, D, Khusnutdinova, EK, Kim, S-W, Kitahara, CM, Koutros, S, Kraft, P, Kristensen, VN, Kubelka-Sabit, K, Kurian, AW, Kwong, A, Lacey, J, Lambrechts, D, Le Marchand, L, Li, J, Linet, M, Lo, W-Y, Long, J, Lophatananon, A, Mannermaa, A, Manoochehri, M, Margolin, S, Matsuo, K, Mavroudis, D, Menon, U, Muir, K, Murphy, RA, Nevanlinna, H, Newman, WG, Niederacher, D, O'Brien, KM, Obi, N, Offit, K, Olopade, O, Olshan, AF, Olsson, H, Park, SK, Patel, A, Perou, CM, Peto, J, Pharoah, PDP, Plaseska-Karanfilska, D, Presneau, N, Rack, B, Radice, P, Ramachandran, D, Rashid, MU, Rennert, G, Romero, A, Ruddy, KJ, Ruebner, M, Saloustros, E, Sandler, DP, Sawyer, EJ, Schmidt, MK, Schmutzler, RK, Schneider, MO, Scott, C, Shah, M, Sharma, P, Shen, C-Y, Shu, X-O, Simard, J, Surowy, H, Tamimi, RM, Tapper, WJ, Taylor, JA, Teo, SH, Teras, LR, Toland, AE, Tollenaar, RAEM, Torres, D, Torres-Mejia, G, Troester, MA, Truong, T, Vachon, CM, Vijai, J, Weinberg, CR, Wendt, C, Winqvist, R, Wolk, A, Wu, AH, Yamaji, T, Yang, XR, Yu, J-C, Zheng, W, Ziogas, A, Ziv, E, Dunning, AM, Easton, DF, Hemingway, H, Hamann, U, Kuchenbaecker, KB, Mueller, SH, Lai, AG, Valkovskaya, M, Michailidou, K, Bolla, MK, Wang, Q, Dennis, J, Lush, M, Abu-Ful, Z, Ahearn, TU, Andrulis, IL, Anton-Culver, H, Antonenkova, NN, Arndt, V, Aronson, KJ, Augustinsson, A, Baert, T, Freeman, LEB, Beckmann, MW, Behrens, S, Benitez, J, Bermisheva, M, Blomqvist, C, Bogdanova, N, Bojesen, SE, Bonanni, B, Brenner, H, Brucker, SY, Buys, SS, Castelao, JE, Chan, TL, Chang-Claude, J, Chanock, SJ, Choi, J-Y, Chung, WK, Colonna, S, Cornelissen, S, Couch, FJ, Czene, K, Daly, MB, Devilee, P, Dork, T, Dossus, L, Dwek, M, Eccles, DM, Ekici, AB, Eliassen, AH, Engel, C, Evans, DG, Fasching, PA, Fletcher, O, Flyger, H, Gago-Dominguez, M, Gao, Y-T, Garcia-Closas, M, Garcia-Saenz, JA, Genkinger, J, Gentry-Maharaj, A, Grassmann, F, Guenel, P, Gundert, M, Haeberle, L, Hahnen, E, Haiman, CA, Hakansson, N, Hall, P, Harkness, EF, Harrington, PA, Hartikainen, JM, Hartman, M, Hein, A, Ho, W-K, Hooning, MJ, Hoppe, R, Hopper, JL, Houlston, RS, Howell, A, Hunter, DJ, Huo, D, Investigators, A, Ito, H, Iwasaki, M, Jakubowska, A, Janni, W, John, EM, Jones, ME, Jung, A, Kaaks, R, Kang, D, Khusnutdinova, EK, Kim, S-W, Kitahara, CM, Koutros, S, Kraft, P, Kristensen, VN, Kubelka-Sabit, K, Kurian, AW, Kwong, A, Lacey, J, Lambrechts, D, Le Marchand, L, Li, J, Linet, M, Lo, W-Y, Long, J, Lophatananon, A, Mannermaa, A, Manoochehri, M, Margolin, S, Matsuo, K, Mavroudis, D, Menon, U, Muir, K, Murphy, RA, Nevanlinna, H, Newman, WG, Niederacher, D, O'Brien, KM, Obi, N, Offit, K, Olopade, O, Olshan, AF, Olsson, H, Park, SK, Patel, A, Perou, CM, Peto, J, Pharoah, PDP, Plaseska-Karanfilska, D, Presneau, N, Rack, B, Radice, P, Ramachandran, D, Rashid, MU, Rennert, G, Romero, A, Ruddy, KJ, Ruebner, M, Saloustros, E, Sandler, DP, Sawyer, EJ, Schmidt, MK, Schmutzler, RK, Schneider, MO, Scott, C, Shah, M, Sharma, P, Shen, C-Y, Shu, X-O, Simard, J, Surowy, H, Tamimi, RM, Tapper, WJ, Taylor, JA, Teo, SH, Teras, LR, Toland, AE, Tollenaar, RAEM, Torres, D, Torres-Mejia, G, Troester, MA, Truong, T, Vachon, CM, Vijai, J, Weinberg, CR, Wendt, C, Winqvist, R, Wolk, A, Wu, AH, Yamaji, T, Yang, XR, Yu, J-C, Zheng, W, Ziogas, A, Ziv, E, Dunning, AM, Easton, DF, Hemingway, H, Hamann, U, and Kuchenbaecker, KB
Abstract: BACKGROUND: Low-frequency variants play an important role in breast cancer (BC) susceptibility. Gene-based methods can increase power by combining multiple variants in the same gene and help identify target genes. METHODS: We evaluated the potential of gene-based aggregation in the Breast Cancer Association Consortium cohorts including 83,471 cases and 59,199 controls. Low-frequency variants were aggregated for individual genes' coding and regulatory regions. Association results in European ancestry samples were compared to single-marker association results in the same cohort. Gene-based associations were also combined in meta-analysis across individuals with European, Asian, African, and Latin American and Hispanic ancestry. RESULTS: In European ancestry samples, 14 genes were significantly associated (q < 0.05) with BC. Of those, two genes, FMNL3 (P = 6.11 × 10-6) and AC058822.1 (P = 1.47 × 10-4), represent new associations. High FMNL3 expression has previously been linked to poor prognosis in several other cancers. Meta-analysis of samples with diverse ancestry discovered further associations including established candidate genes ESR1 and CBLB. Furthermore, literature review and database query found further support for a biologically plausible link with cancer for genes CBLB, FMNL3, FGFR2, LSP1, MAP3K1, and SRGAP2C. CONCLUSIONS: Using extended gene-based aggregation tests including coding and regulatory variation, we report identification of plausible target genes for previously identified single-marker associations with BC as well as the discovery of novel genes implicated in BC development. Including multi ancestral cohorts in this study enabled the identification of otherwise missed disease associations as ESR1 (P = 1.31 × 10-5), demonstrating the importance of diversifying study cohorts.
Published: 2023

11. A genome-wide gene-environment interaction study of breast cancer risk for women of European ancestry

Author: Middha, PK, Wang, X, Behrens, S, Bolla, MK, Wang, Q, Dennis, J, Michailidou, K, Ahearn, TU, Andrulis, IL, Anton-Culver, H, Arndt, V, Aronson, KJ, Auer, PL, Augustinsson, A, Baert, T, Freeman, LEB, Becher, H, Beckmann, MW, Benitez, J, Bojesen, SE, Brauch, H, Brenner, H, Brooks-Wilson, A, Campa, D, Canzian, F, Carracedo, A, Castelao, JE, Chanock, SJ, Chenevix-Trench, G, Cordina-Duverger, E, Couch, FJ, Cox, A, Cross, SS, Czene, K, Dossus, L, Dugue, P-A, Eliassen, AH, Eriksson, M, Evans, DG, Fasching, PA, Figueroa, J, Fletcher, O, Flyger, H, Gabrielson, M, Gago-Dominguez, M, Giles, GG, Gonzalez-Neira, A, Grassmann, F, Grundy, A, Guenel, P, Haiman, CA, Hakansson, N, Hall, P, Hamann, U, Hankinson, SE, Harkness, EF, Holleczek, B, Hoppe, R, Hopper, JL, Houlston, RS, Howell, A, Hunter, DJ, Ingvar, C, Isaksson, K, Jernstroem, H, John, EM, Jones, ME, Kaaks, R, Keeman, R, Kitahara, CM, Ko, Y-D, Koutros, S, Kurian, AW, Lacey, JV, Lambrechts, D, Larson, NL, Larsson, S, Le Marchand, L, Lejbkowicz, F, Li, S, Linet, M, Lissowska, J, Martinez, ME, Maurer, T, Mulligan, AM, Mulot, C, Murphy, RA, Newman, WG, Nielsen, SF, Nordestgaard, BG, Norman, A, O'Brien, KM, Olson, JE, Patel, AV, Prentice, R, Rees-Punia, E, Rennert, G, Rhenius, V, Ruddy, KJ, Sandler, DP, Scott, CG, Shah, MT, Shu, X-O, Smeets, A, Southey, MC, Stone, J, Tamimi, RM, Taylor, JA, Teras, LR, Tomczyk, K, Troester, MA, Truong, T, Vachon, CM, Wang, SS, Weinberg, CR, Wildiers, H, Willett, W, Winham, SJ, Wolk, A, Yang, X, Zamora, MP, Zheng, W, Ziogas, A, Dunning, AM, Pharoah, PDP, Garcia-Closas, M, Schmidt, MK, Kraft, P, Milne, RL, Lindstroem, S, Easton, DF, Chang-Claude, J, Middha, PK, Wang, X, Behrens, S, Bolla, MK, Wang, Q, Dennis, J, Michailidou, K, Ahearn, TU, Andrulis, IL, Anton-Culver, H, Arndt, V, Aronson, KJ, Auer, PL, Augustinsson, A, Baert, T, Freeman, LEB, Becher, H, Beckmann, MW, Benitez, J, Bojesen, SE, Brauch, H, Brenner, H, Brooks-Wilson, A, Campa, D, Canzian, F, Carracedo, A, Castelao, JE, Chanock, SJ, Chenevix-Trench, G, Cordina-Duverger, E, Couch, FJ, Cox, A, Cross, SS, Czene, K, Dossus, L, Dugue, P-A, Eliassen, AH, Eriksson, M, Evans, DG, Fasching, PA, Figueroa, J, Fletcher, O, Flyger, H, Gabrielson, M, Gago-Dominguez, M, Giles, GG, Gonzalez-Neira, A, Grassmann, F, Grundy, A, Guenel, P, Haiman, CA, Hakansson, N, Hall, P, Hamann, U, Hankinson, SE, Harkness, EF, Holleczek, B, Hoppe, R, Hopper, JL, Houlston, RS, Howell, A, Hunter, DJ, Ingvar, C, Isaksson, K, Jernstroem, H, John, EM, Jones, ME, Kaaks, R, Keeman, R, Kitahara, CM, Ko, Y-D, Koutros, S, Kurian, AW, Lacey, JV, Lambrechts, D, Larson, NL, Larsson, S, Le Marchand, L, Lejbkowicz, F, Li, S, Linet, M, Lissowska, J, Martinez, ME, Maurer, T, Mulligan, AM, Mulot, C, Murphy, RA, Newman, WG, Nielsen, SF, Nordestgaard, BG, Norman, A, O'Brien, KM, Olson, JE, Patel, AV, Prentice, R, Rees-Punia, E, Rennert, G, Rhenius, V, Ruddy, KJ, Sandler, DP, Scott, CG, Shah, MT, Shu, X-O, Smeets, A, Southey, MC, Stone, J, Tamimi, RM, Taylor, JA, Teras, LR, Tomczyk, K, Troester, MA, Truong, T, Vachon, CM, Wang, SS, Weinberg, CR, Wildiers, H, Willett, W, Winham, SJ, Wolk, A, Yang, X, Zamora, MP, Zheng, W, Ziogas, A, Dunning, AM, Pharoah, PDP, Garcia-Closas, M, Schmidt, MK, Kraft, P, Milne, RL, Lindstroem, S, Easton, DF, and Chang-Claude, J
Abstract: BACKGROUND: Genome-wide studies of gene-environment interactions (G×E) may identify variants associated with disease risk in conjunction with lifestyle/environmental exposures. We conducted a genome-wide G×E analysis of ~ 7.6 million common variants and seven lifestyle/environmental risk factors for breast cancer risk overall and for estrogen receptor positive (ER +) breast cancer. METHODS: Analyses were conducted using 72,285 breast cancer cases and 80,354 controls of European ancestry from the Breast Cancer Association Consortium. Gene-environment interactions were evaluated using standard unconditional logistic regression models and likelihood ratio tests for breast cancer risk overall and for ER + breast cancer. Bayesian False Discovery Probability was employed to assess the noteworthiness of each SNP-risk factor pairs. RESULTS: Assuming a 1 × 10-5 prior probability of a true association for each SNP-risk factor pairs and a Bayesian False Discovery Probability < 15%, we identified two independent SNP-risk factor pairs: rs80018847(9p13)-LINGO2 and adult height in association with overall breast cancer risk (ORint = 0.94, 95% CI 0.92-0.96), and rs4770552(13q12)-SPATA13 and age at menarche for ER + breast cancer risk (ORint = 0.91, 95% CI 0.88-0.94). CONCLUSIONS: Overall, the contribution of G×E interactions to the heritability of breast cancer is very small. At the population level, multiplicative G×E interactions do not make an important contribution to risk prediction in breast cancer.
Published: 2023

12. Rare germline copy number variants (CNVs) and breast cancer risk

Author: Dennis, J, Tyrer, JP, Walker, LC, Michailidou, K, Dorling, L, Bolla, MK, Wang, Q, Ahearn, TU, Andrulis, IL, Anton-Culver, H, Antonenkova, NN, Arndt, V, Aronson, KJ, Freeman, LEB, Beckmann, MW, Behrens, S, Benitez, J, Bermisheva, M, Bogdanova, N, Bojesen, SE, Brenner, H, Castelao, JE, Chang-Claude, J, Chenevix-Trench, G, Clarke, CL, Collee, JM, Couch, FJ, Cox, A, Cross, SS, Czene, K, Devilee, P, Dork, T, Dossus, L, Eliassen, AH, Eriksson, M, Evans, DG, Fasching, PA, Figueroa, J, Fletcher, O, Flyger, H, Fritschi, L, Gabrielson, M, Gago-Dominguez, M, Garcia-Closas, M, Giles, GG, Gonzalez-Neira, A, Guenel, P, Hahnen, E, Haiman, CA, Hall, P, Hollestelle, A, Hoppe, R, Hopper, JL, Howell, A, Jager, A, Jakubowska, A, John, EM, Johnson, N, Jones, ME, Jung, A, Kaaks, R, Keeman, R, Khusnutdinova, E, Kitahara, CM, Ko, Y-D, Kosma, V-M, Koutros, S, Kraft, P, Kristensen, VN, Kubelka-Sabit, K, Kurian, AW, Lacey, J, Lambrechts, D, Larson, NL, Linet, M, Ogrodniczak, A, Mannermaa, A, Manoukian, S, Margolin, S, Mavroudis, D, Milne, RL, Muranen, TA, Murphy, RA, Nevanlinna, H, Olson, JE, Olsson, H, Park-Simon, T-W, Perou, CM, Peterlongo, P, Plaseska-Karanfilska, D, Pylkas, K, Rennert, G, Saloustros, E, Sandler, DP, Sawyer, EJ, Schmidt, MK, Schmutzler, RK, Shibli, R, Smeets, A, Soucy, P, Southey, MC, Swerdlow, AJ, Tamimi, RM, Taylor, JA, Teras, LR, Terry, MB, Tomlinson, I, Troester, MA, Truong, T, Vachon, CM, Wendt, C, Winqvist, R, Wolk, A, Yang, XR, Zheng, W, Ziogas, A, Simard, J, Dunning, AM, Pharoah, PDP, Easton, DF, Dennis, J, Tyrer, JP, Walker, LC, Michailidou, K, Dorling, L, Bolla, MK, Wang, Q, Ahearn, TU, Andrulis, IL, Anton-Culver, H, Antonenkova, NN, Arndt, V, Aronson, KJ, Freeman, LEB, Beckmann, MW, Behrens, S, Benitez, J, Bermisheva, M, Bogdanova, N, Bojesen, SE, Brenner, H, Castelao, JE, Chang-Claude, J, Chenevix-Trench, G, Clarke, CL, Collee, JM, Couch, FJ, Cox, A, Cross, SS, Czene, K, Devilee, P, Dork, T, Dossus, L, Eliassen, AH, Eriksson, M, Evans, DG, Fasching, PA, Figueroa, J, Fletcher, O, Flyger, H, Fritschi, L, Gabrielson, M, Gago-Dominguez, M, Garcia-Closas, M, Giles, GG, Gonzalez-Neira, A, Guenel, P, Hahnen, E, Haiman, CA, Hall, P, Hollestelle, A, Hoppe, R, Hopper, JL, Howell, A, Jager, A, Jakubowska, A, John, EM, Johnson, N, Jones, ME, Jung, A, Kaaks, R, Keeman, R, Khusnutdinova, E, Kitahara, CM, Ko, Y-D, Kosma, V-M, Koutros, S, Kraft, P, Kristensen, VN, Kubelka-Sabit, K, Kurian, AW, Lacey, J, Lambrechts, D, Larson, NL, Linet, M, Ogrodniczak, A, Mannermaa, A, Manoukian, S, Margolin, S, Mavroudis, D, Milne, RL, Muranen, TA, Murphy, RA, Nevanlinna, H, Olson, JE, Olsson, H, Park-Simon, T-W, Perou, CM, Peterlongo, P, Plaseska-Karanfilska, D, Pylkas, K, Rennert, G, Saloustros, E, Sandler, DP, Sawyer, EJ, Schmidt, MK, Schmutzler, RK, Shibli, R, Smeets, A, Soucy, P, Southey, MC, Swerdlow, AJ, Tamimi, RM, Taylor, JA, Teras, LR, Terry, MB, Tomlinson, I, Troester, MA, Truong, T, Vachon, CM, Wendt, C, Winqvist, R, Wolk, A, Yang, XR, Zheng, W, Ziogas, A, Simard, J, Dunning, AM, Pharoah, PDP, and Easton, DF
Abstract: Germline copy number variants (CNVs) are pervasive in the human genome but potential disease associations with rare CNVs have not been comprehensively assessed in large datasets. We analysed rare CNVs in genes and non-coding regions for 86,788 breast cancer cases and 76,122 controls of European ancestry with genome-wide array data. Gene burden tests detected the strongest association for deletions in BRCA1 (P = 3.7E-18). Nine other genes were associated with a p-value < 0.01 including known susceptibility genes CHEK2 (P = 0.0008), ATM (P = 0.002) and BRCA2 (P = 0.008). Outside the known genes we detected associations with p-values < 0.001 for either overall or subtype-specific breast cancer at nine deletion regions and four duplication regions. Three of the deletion regions were in established common susceptibility loci. To the best of our knowledge, this is the first genome-wide analysis of rare CNVs in a large breast cancer case-control dataset. We detected associations with exonic deletions in established breast cancer susceptibility genes. We also detected suggestive associations with non-coding CNVs in known and novel loci with large effects sizes. Larger sample sizes will be required to reach robust levels of statistical significance.
Published: 2022

13. Physical activity, sedentary time and breast cancer risk: a Mendelian randomisation study

Author: Dixon-Suen, SC, Lewis, SJ, Martin, RM, English, DR, Boyle, T, Giles, GG, Michailidou, K, Bolla, MK, Wang, Q, Dennis, J, Lush, M, Ahearn, TU, Ambrosone, CB, Andrulis, IL, Anton-Culver, H, Arndt, V, Aronson, KJ, Augustinsson, A, Auvinen, P, Beane Freeman, LE, Becher, H, Beckmann, MW, Behrens, S, Bermisheva, M, Blomqvist, C, Bogdanova, N, Bojesen, SE, Bonanni, B, Brenner, H, Bruening, T, Buys, SS, Camp, NJ, Campa, D, Canzian, F, Castelao, JE, Cessna, MH, Chang-Claude, J, Chanock, SJ, Clarke, CL, Conroy, DM, Couch, FJ, Cox, A, Cross, SS, Czene, K, Daly, MB, Devilee, P, Doerk, T, Dwek, M, Eccles, DM, Eliassen, AH, Engel, C, Eriksson, M, Evans, DG, Fasching, PA, Fletcher, O, Flyger, H, Fritschi, L, Gabrielson, M, Gago-Dominguez, M, Garcia-Closas, M, Garcia-Saenz, JA, Goldberg, MS, Guenel, P, Guendert, M, Hahnen, E, Haiman, CA, Haeberle, L, Hakansson, N, Hall, P, Hamann, U, Hart, SN, Harvie, M, Hillemanns, P, Hollestelle, A, Hooning, MJ, Hoppe, R, Hopper, J, Howell, A, Hunter, DJ, Jakubowska, A, Janni, W, John, EM, Jung, A, Kaaks, R, Keeman, R, Kitahara, CM, Koutros, S, Kraft, P, Kristensen, VN, Kubelka-Sabit, K, Kurian, AW, Lacey, J, Lambrechts, D, Le Marchand, L, Lindblom, A, Loibl, S, Lubinski, J, Mannermaa, A, Manoochehri, M, Margolin, S, Martinez, ME, Mavroudis, D, Menon, U, Mulligan, AM, Murphy, RA, Nevanlinna, H, Nevelsteen, I, Newman, WG, Offit, K, Olshan, AF, Olsson, H, Orr, N, Patel, A, Peto, J, Plaseska-Karanfilska, D, Presneau, N, Rack, B, Radice, P, Rees-Punia, E, Rennert, G, Rennert, HS, Romero, A, Saloustros, E, Sandler, DP, Schmidt, MK, Schmutzler, RK, Schwentner, L, Scott, C, Shah, M, Shu, X-O, Simard, J, Southey, MC, Stone, J, Surowy, H, Swerdlow, AJ, Tamimi, RM, Tapper, WJ, Taylor, JA, Terry, MB, Tollenaar, RAEM, Troester, MA, Truong, T, Untch, M, Vachon, CM, Joseph, V, Wappenschmidt, B, Weinberg, CR, Wolk, A, Yannoukakos, D, Zheng, W, Ziogas, A, Dunning, AM, Pharoah, PDP, Easton, DF, Milne, RL, Lynch, BM, Dixon-Suen, SC, Lewis, SJ, Martin, RM, English, DR, Boyle, T, Giles, GG, Michailidou, K, Bolla, MK, Wang, Q, Dennis, J, Lush, M, Ahearn, TU, Ambrosone, CB, Andrulis, IL, Anton-Culver, H, Arndt, V, Aronson, KJ, Augustinsson, A, Auvinen, P, Beane Freeman, LE, Becher, H, Beckmann, MW, Behrens, S, Bermisheva, M, Blomqvist, C, Bogdanova, N, Bojesen, SE, Bonanni, B, Brenner, H, Bruening, T, Buys, SS, Camp, NJ, Campa, D, Canzian, F, Castelao, JE, Cessna, MH, Chang-Claude, J, Chanock, SJ, Clarke, CL, Conroy, DM, Couch, FJ, Cox, A, Cross, SS, Czene, K, Daly, MB, Devilee, P, Doerk, T, Dwek, M, Eccles, DM, Eliassen, AH, Engel, C, Eriksson, M, Evans, DG, Fasching, PA, Fletcher, O, Flyger, H, Fritschi, L, Gabrielson, M, Gago-Dominguez, M, Garcia-Closas, M, Garcia-Saenz, JA, Goldberg, MS, Guenel, P, Guendert, M, Hahnen, E, Haiman, CA, Haeberle, L, Hakansson, N, Hall, P, Hamann, U, Hart, SN, Harvie, M, Hillemanns, P, Hollestelle, A, Hooning, MJ, Hoppe, R, Hopper, J, Howell, A, Hunter, DJ, Jakubowska, A, Janni, W, John, EM, Jung, A, Kaaks, R, Keeman, R, Kitahara, CM, Koutros, S, Kraft, P, Kristensen, VN, Kubelka-Sabit, K, Kurian, AW, Lacey, J, Lambrechts, D, Le Marchand, L, Lindblom, A, Loibl, S, Lubinski, J, Mannermaa, A, Manoochehri, M, Margolin, S, Martinez, ME, Mavroudis, D, Menon, U, Mulligan, AM, Murphy, RA, Nevanlinna, H, Nevelsteen, I, Newman, WG, Offit, K, Olshan, AF, Olsson, H, Orr, N, Patel, A, Peto, J, Plaseska-Karanfilska, D, Presneau, N, Rack, B, Radice, P, Rees-Punia, E, Rennert, G, Rennert, HS, Romero, A, Saloustros, E, Sandler, DP, Schmidt, MK, Schmutzler, RK, Schwentner, L, Scott, C, Shah, M, Shu, X-O, Simard, J, Southey, MC, Stone, J, Surowy, H, Swerdlow, AJ, Tamimi, RM, Tapper, WJ, Taylor, JA, Terry, MB, Tollenaar, RAEM, Troester, MA, Truong, T, Untch, M, Vachon, CM, Joseph, V, Wappenschmidt, B, Weinberg, CR, Wolk, A, Yannoukakos, D, Zheng, W, Ziogas, A, Dunning, AM, Pharoah, PDP, Easton, DF, Milne, RL, and Lynch, BM
Abstract: OBJECTIVES: Physical inactivity and sedentary behaviour are associated with higher breast cancer risk in observational studies, but ascribing causality is difficult. Mendelian randomisation (MR) assesses causality by simulating randomised trial groups using genotype. We assessed whether lifelong physical activity or sedentary time, assessed using genotype, may be causally associated with breast cancer risk overall, pre/post-menopause, and by case-groups defined by tumour characteristics. METHODS: We performed two-sample inverse-variance-weighted MR using individual-level Breast Cancer Association Consortium case-control data from 130 957 European-ancestry women (69 838 invasive cases), and published UK Biobank data (n=91 105-377 234). Genetic instruments were single nucleotide polymorphisms (SNPs) associated in UK Biobank with wrist-worn accelerometer-measured overall physical activity (nsnps=5) or sedentary time (nsnps=6), or accelerometer-measured (nsnps=1) or self-reported (nsnps=5) vigorous physical activity. RESULTS: Greater genetically-predicted overall activity was associated with lower breast cancer overall risk (OR=0.59; 95% confidence interval (CI) 0.42 to 0.83 per-standard deviation (SD;~8 milligravities acceleration)) and for most case-groups. Genetically-predicted vigorous activity was associated with lower risk of pre/perimenopausal breast cancer (OR=0.62; 95% CI 0.45 to 0.87,≥3 vs. 0 self-reported days/week), with consistent estimates for most case-groups. Greater genetically-predicted sedentary time was associated with higher hormone-receptor-negative tumour risk (OR=1.77; 95% CI 1.07 to 2.92 per-SD (~7% time spent sedentary)), with elevated estimates for most case-groups. Results were robust to sensitivity analyses examining pleiotropy (including weighted-median-MR, MR-Egger). CONCLUSION: Our study provides strong evidence that greater overall physical activity, greater vigorous activity, and lower sedentary time are likely to reduce breast cancer r
Published: 2022

14. Rare germline copy number variants (CNVs) and breast cancer risk

Author: Dennis, J. (Joe), Tyrer, J. P. (Jonathan P.), Walker, L. C. (Logan C.), Michailidou, K. (Kyriaki), Dorling, L. (Leila), Bolla, M. K. (Manjeet K.), Wang, Q. (Qin), Ahearn, T. U. (Thomas U.), Andrulis, I. L. (Irene L.), Anton-Culver, H. (Hoda), Antonenkova, N. N. (Natalia N.), Arndt, V. (Volker), Aronson, K. J. (Kristan J.), Freeman, L. E. (Laura E. Beane), Beckmann, M. W. (Matthias W.), Behrens, S. (Sabine), Benitez, J. (Javier), Bermisheva, M. (Marina), Bogdanova, N. V. (Natalia, V), Bojesen, S. E. (Stig E.), Brenner, H. (Hermann), Castelao, J. E. (Jose E.), Chang-Claude, J. (Jenny), Chenevix-Trench, G. (Georgia), Clarke, C. L. (Christine L.), N. C. (NBCS Collaborators), Collee, J. M. (J. Margriet), C. C. (CTS Consortium), Couch, F. J. (Fergus J.), Cox, A. (Angela), Cross, S. S. (Simon S.), Czene, K. (Kamila), Devilee, P. (Peter), Dörk, T. (Thilo), Dossus, L. (Laure), Eliassen, A. H. (A. Heather), Eriksson, M. (Mikael), Evans, D. G. (D. Gareth), Fasching, P. A. (Peter A.), Figueroa, J. (Jonine), Fletcher, O. (Olivia), Flyger, H. (Henrik), Fritschi, L. (Lin), Gabrielson, M. (Marike), Gago-Dominguez, M. (Manuela), Garcia-Closas, M. (Montserrat), Giles, G. G. (Graham G.), Gonzalez-Neira, A. (Anna), Guenel, P. (Pascal), Hahnen, E. (Eric), Haiman, C. A. (Christopher A.), Hall, P. (Per), Hollestelle, A. (Antoinette), Hoppe, R. (Reiner), Hopper, J. L. (John L.), Howell, A. (Anthony), A. I. (ABCTB Investigators), k. I. (kConFab/AOCS Investigators), Jager, A. (Agnes), Jakubowska, A. (Anna), John, E. M. (Esther M.), Johnson, N. (Nichola), Jones, M. E. (Michael E.), Jung, A. (Audrey), Kaaks, R. (Rudolf), Keeman, R. (Renske), Khusnutdinova, E. (Elza), Kitahara, C. M. (Cari M.), Ko, Y.-D. (Yon-Dschun), Kosma, V.-M. (Veli-Matti), Koutros, S. (Stella), Kraft, P. (Peter), Kristensen, V. N. (Vessela N.), Kubelka-Sabit, K. (Katerina), Kurian, A. W. (Allison W.), Lacey, J. V. (James, V), Lambrechts, D. (Diether), Larson, N. L. (Nicole L.), Linet, M. (Martha), Ogrodniczak, A. (Alicja), Mannermaa, A. (Arto), Manoukian, S. (Siranoush), Margolin, S. (Sara), Mavroudis, D. (Dimitrios), Milne, R. L. (Roger L.), Muranen, T. A. (Taru A.), Murphy, R. A. (Rachel A.), Nevanlinna, H. (Heli), Olson, J. E. (Janet E.), Olsson, H. (Hakan), Park-Simon, T.-W. (Tjoung-Won), Perou, C. M. (Charles M.), Peterlongo, P. (Paolo), Plaseska-Karanfilska, D. (Dijana), Pylkas, K. (Katri), Rennert, G. (Gad), Saloustros, E. (Emmanouil), Sandler, D. P. (Dale P.), Sawyer, E. J. (Elinor J.), Schmidt, M. K. (Marjanka K.), Schmutzler, R. K. (Rita K.), Shibli, R. (Rana), Smeets, A. (Ann), Soucy, P. (Penny), Southey, M. C. (Melissa C.), Swerdlow, A. J. (Anthony J.), Tamimi, R. M. (Rulla M.), Taylor, J. A. (Jack A.), Teras, L. R. (Lauren R.), Terry, M. B. (Mary Beth), Tomlinson, I. (Ian), Troester, M. A. (Melissa A.), Truong, T. (Therese), Vachon, C. M. (Celine M.), Wendt, C. (Camilla), Winqvist, R. (Robert), Wolk, A. (Alicja), Yang, X. R. (Xiaohong R.), Zheng, W. (Wei), Ziogas, A. (Argyrios), Simard, J. (Jacques), Dunning, A. M. (Alison M.), Pharoah, P. D. (Paul D. P.), Easton, D. F. (Douglas F.), Dennis, J. (Joe), Tyrer, J. P. (Jonathan P.), Walker, L. C. (Logan C.), Michailidou, K. (Kyriaki), Dorling, L. (Leila), Bolla, M. K. (Manjeet K.), Wang, Q. (Qin), Ahearn, T. U. (Thomas U.), Andrulis, I. L. (Irene L.), Anton-Culver, H. (Hoda), Antonenkova, N. N. (Natalia N.), Arndt, V. (Volker), Aronson, K. J. (Kristan J.), Freeman, L. E. (Laura E. Beane), Beckmann, M. W. (Matthias W.), Behrens, S. (Sabine), Benitez, J. (Javier), Bermisheva, M. (Marina), Bogdanova, N. V. (Natalia, V), Bojesen, S. E. (Stig E.), Brenner, H. (Hermann), Castelao, J. E. (Jose E.), Chang-Claude, J. (Jenny), Chenevix-Trench, G. (Georgia), Clarke, C. L. (Christine L.), N. C. (NBCS Collaborators), Collee, J. M. (J. Margriet), C. C. (CTS Consortium), Couch, F. J. (Fergus J.), Cox, A. (Angela), Cross, S. S. (Simon S.), Czene, K. (Kamila), Devilee, P. (Peter), Dörk, T. (Thilo), Dossus, L. (Laure), Eliassen, A. H. (A. Heather), Eriksson, M. (Mikael), Evans, D. G. (D. Gareth), Fasching, P. A. (Peter A.), Figueroa, J. (Jonine), Fletcher, O. (Olivia), Flyger, H. (Henrik), Fritschi, L. (Lin), Gabrielson, M. (Marike), Gago-Dominguez, M. (Manuela), Garcia-Closas, M. (Montserrat), Giles, G. G. (Graham G.), Gonzalez-Neira, A. (Anna), Guenel, P. (Pascal), Hahnen, E. (Eric), Haiman, C. A. (Christopher A.), Hall, P. (Per), Hollestelle, A. (Antoinette), Hoppe, R. (Reiner), Hopper, J. L. (John L.), Howell, A. (Anthony), A. I. (ABCTB Investigators), k. I. (kConFab/AOCS Investigators), Jager, A. (Agnes), Jakubowska, A. (Anna), John, E. M. (Esther M.), Johnson, N. (Nichola), Jones, M. E. (Michael E.), Jung, A. (Audrey), Kaaks, R. (Rudolf), Keeman, R. (Renske), Khusnutdinova, E. (Elza), Kitahara, C. M. (Cari M.), Ko, Y.-D. (Yon-Dschun), Kosma, V.-M. (Veli-Matti), Koutros, S. (Stella), Kraft, P. (Peter), Kristensen, V. N. (Vessela N.), Kubelka-Sabit, K. (Katerina), Kurian, A. W. (Allison W.), Lacey, J. V. (James, V), Lambrechts, D. (Diether), Larson, N. L. (Nicole L.), Linet, M. (Martha), Ogrodniczak, A. (Alicja), Mannermaa, A. (Arto), Manoukian, S. (Siranoush), Margolin, S. (Sara), Mavroudis, D. (Dimitrios), Milne, R. L. (Roger L.), Muranen, T. A. (Taru A.), Murphy, R. A. (Rachel A.), Nevanlinna, H. (Heli), Olson, J. E. (Janet E.), Olsson, H. (Hakan), Park-Simon, T.-W. (Tjoung-Won), Perou, C. M. (Charles M.), Peterlongo, P. (Paolo), Plaseska-Karanfilska, D. (Dijana), Pylkas, K. (Katri), Rennert, G. (Gad), Saloustros, E. (Emmanouil), Sandler, D. P. (Dale P.), Sawyer, E. J. (Elinor J.), Schmidt, M. K. (Marjanka K.), Schmutzler, R. K. (Rita K.), Shibli, R. (Rana), Smeets, A. (Ann), Soucy, P. (Penny), Southey, M. C. (Melissa C.), Swerdlow, A. J. (Anthony J.), Tamimi, R. M. (Rulla M.), Taylor, J. A. (Jack A.), Teras, L. R. (Lauren R.), Terry, M. B. (Mary Beth), Tomlinson, I. (Ian), Troester, M. A. (Melissa A.), Truong, T. (Therese), Vachon, C. M. (Celine M.), Wendt, C. (Camilla), Winqvist, R. (Robert), Wolk, A. (Alicja), Yang, X. R. (Xiaohong R.), Zheng, W. (Wei), Ziogas, A. (Argyrios), Simard, J. (Jacques), Dunning, A. M. (Alison M.), Pharoah, P. D. (Paul D. P.), and Easton, D. F. (Douglas F.)
Abstract: Germline copy number variants (CNVs) are pervasive in the human genome but potential disease associations with rare CNVs have not been comprehensively assessed in large datasets. We analysed rare CNVs in genes and non-coding regions for 86,788 breast cancer cases and 76,122 controls of European ancestry with genome-wide array data. Gene burden tests detected the strongest association for deletions in BRCA1 (P = 3.7E-18). Nine other genes were associated with a p-value < 0.01 including known susceptibility genes CHEK2 (P = 0.0008), ATM (P = 0.002) and BRCA2 (P = 0.008). Outside the known genes we detected associations with p-values < 0.001 for either overall or subtype-specific breast cancer at nine deletion regions and four duplication regions. Three of the deletion regions were in established common susceptibility loci. To the best of our knowledge, this is the first genome-wide analysis of rare CNVs in a large breast cancer case-control dataset. We detected associations with exonic deletions in established breast cancer susceptibility genes. We also detected suggestive associations with non-coding CNVs in known and novel loci with large effects sizes. Larger sample sizes will be required to reach robust levels of statistical significance.
Published: 2022

15. Parvovirus-Associated Cerebellar Hypoplasia and Hydrocephalus in Day Old Broiler Chickens

Author: Marusak, R. A., Guy, J. S., Abdul-Aziz, T. A., West, M. A., Fletcher, O. J., Day, J. M., Zsak, L., and Barnes, H. John
Published: 2010

16. Bladder and bowel continence in bilateral cerebral palsy: A population study

Author: Wright, A.J., Fletcher, O., Scrutton, D., and Baird, G.
Published: 2016
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17. Functional annotation of the 2q35 breast cancer risk locus implicates a structural variant in influencing activity of a long-range enhancer element

Author: Baxter, J.S., Johnson, N., Tomczyk, K., Gillespie, A., Maguire, S., Brough, R., Fachal, L., Michailidou, K., Bolla, M.K., Wang, Q., Dennis, J., Ahearn, T.U., Andrulis, I.L., Anton-Culver, H., Antonenkova, N.N., Arndt, V., Aronson, K.J., Augustinsson, A., Becher, H., Beckmann, M.W., Behrens, S., Benitez, J., Bermisheva, M., Bogdanova, N.V., Bojesen, S.E., Brenner, H., Brucker, S.Y., Cai, Q.Y., Campa, D., Canzian, F., Castelao, J.E., Chan, T.L., Chang-Claude, J., Chanock, S.J., Chenevix-Trench, G., Choi, J.Y., Clarke, C.L., Collaborators, N., Colonna, S., Conroy, D.M., Couch, F.J., Cox, A., Cross, S.S., Czene, K., Daly, M.B., Devilee, P., Dork, T., Dossus, L., Dwek, M., Eccles, D.M., Ekici, A.B., Eliassen, A.H., Engel, C., Fasching, P.A., Figueroa, J., Flyger, H., Gago-Dominguez, M., Gao, C., Garcia-Closas, M., Garcia-Saenz, J.A., Ghoussaini, M., Giles, G.G., Goldberg, M.S., Gonzalez-Neira, A., Guenel, P., Gundert, M., Haeberle, L., Hahnen, E., Haiman, C.A., Hall, P., Hamann, U., Hartman, M., Hatse, S., Hauke, J., Hollestelle, A., Hoppe, R., Hopper, J.L., Hou, M.F., Ito, H., Iwasaki, M., Jager, A., Jakubowska, A., Janni, W., John, E.M., Joseph, V., Jung, A., Kaaks, R., Kang, D., Keeman, R., Khusnutdinova, E., Kim, S.W., Kosma, V.M., Kraft, P., Kristensen, V.N., Kubelka-Sabit, K., Kurian, A.W., Kwong, A., Lacey, J.V., Lambrechts, D., Larson, N.L., Larsson, S.C., Marchand, L. le, Lejbkowicz, F., Li, J.M., Long, J.R., Lophatananon, A., LubiNski, J., Mannermaa, A., Manoochehri, M., Manoukian, S., Margolin, S., Matsuo, K., Mavroudis, D., Mayes, R., Menon, U., Milne, R.L., Taib, N.A.M., Muir, K., Muranen, T.A., Murphy, R.A., Nevanlinna, H., O'Brien, K.M., Offit, K., Olson, J.E., Olsson, H., Park, S.K., Park-Simon, T.W., Patel, A.V., Peterlongo, P., Peto, J., Plaseska-Karanfilska, D., Presneau, N., Pylkas, K., Rack, B., Rennert, G., Romero, A., Ruebner, M., Rudiger, T., Saloustros, E., Sandler, D.P., Sawyer, E.J., Schmidt, M.K., Schmutzler, R.K., Schneeweiss, A., Schoemaker, M.J., Shah, M., Shen, C.Y., Shu, X.O., Simard, J., Southey, M.C., Stone, J., Surowy, H., Swerdlow, A.J., Tamimi, R.M., Tapper, W.J., Taylor, J.A., Teo, S.H., Teras, L.R., Terry, M.B., Toland, A.E., Tomlinson, I., Truong, T., Tseng, C.C., Untch, M., Vachon, C.M., Ouweland, A.M.W. van den, Wang, S.S., Weinberg, C.R., Wendt, C., Winham, S.J., Winqvist, R., Wolk, A., Wu, A.H., Yamaji, T., Zheng, W., Ziogas, A., Pharoah, P.D.P., Dunning, A.M., Easton, D.F., Pettitt, S.J., Lord, C.J., Haider, S., Orr, N., Fletcher, O., kConFab Investigators, ABCTB Investigators, Medical Oncology, Clinical Genetics, HUS Gynecology and Obstetrics, Department of Obstetrics and Gynecology, Biosciences, Dennis, Joe [0000-0003-4591-1214], Pharoah, Paul [0000-0001-8494-732X], Dunning, Alison [0000-0001-6651-7166], Easton, Douglas [0000-0003-2444-3247], and Apollo - University of Cambridge Repository
Subjects: Basic medicine, breast cancer risk, 0302 clinical medicine, Transcription (biology), Risk Factors, WIDE ASSOCIATION, TRANSCRIPTION, Promoter Regions, Genetic, Genetics (clinical), Sequence Deletion, Genetics, Genetics & Heredity, 0303 health sciences, Chromosome Mapping, 3. Good health, 030220 oncology & carcinogenesis, Chromosomes, Human, Pair 2, Pair 2, Female, Medical Genetics, Life Sciences & Biomedicine, Human, Tumor suppressor gene, SUSCEPTIBILITY LOCI, In silico, 3122 Cancers, Locus (genetics), Breast Neoplasms, Biology, Chromosomes, Article, Cell Line, RNAS, Promoter Regions, 03 medical and health sciences, functional annotation, risk locus, CRISPR-Cas Systems, Genetic Association Studies, Genetic Variation, Humans, Insulin-Like Growth Factor Binding Protein 5, Molecular Sequence Annotation, 11Q13, Genetic, SDG 3 - Good Health and Well-being, Enhancer, Transcription factor, 030304 developmental biology, Medicinsk genetik, Reporter gene, Science & Technology, IDENTIFICATION, Clinical medicine, Estrogen receptor alpha
Abstract: A combination of genetic and functional approaches has identified three independent breast cancer risk loci at 2q35. A recent fine-scale mapping analysis to refine these associations resulted in 1 (signal 1), 5 (signal 2), and 42 (signal 3) credible causal variants at these loci. We used publicly available in silico DNase I and ChIP-seq data with in vitro reporter gene and CRISPR assays to annotate signals 2 and 3. We identified putative regulatory elements that enhanced cell-type-specific transcription from the IGFBP5 promoter at both signals (30- to 40-fold increased expression by the putative regulatory element at signal 2, 2- to 3-fold by the putative regulatory element at signal 3). We further identified one of the five credible causal variants at signal 2, a 1.4 kb deletion (esv3594306), as the likely causal variant; the deletion allele of this variant was associated with an average additional increase in IGFBP5 expression of 1.3-fold (MCF-7) and 2.2-fold (T-47D). We propose a model in which the deletion allele of esv3594306 juxtaposes two transcription factor binding regions (annotated by estrogen receptor alpha ChIP-seq peaks) to generate a single extended regulatory element. This regulatory element increases cell-type-specific expression of the tumor suppressor gene IGFBP5 and, thereby, reduces risk of estrogen receptor-positive breast cancer (odds ratio = 0.77, 95% CI 0.74-0.81, p = 3.1 × 10-31). ispartof: AMERICAN JOURNAL OF HUMAN GENETICS vol:108 issue:7 pages:1190-1203 ispartof: location:United States status: published
Published: 2021

18. Pregnancy outcome and fibrinolytic, endothelial and coagulation markers in women undergoing uterine artery Doppler screening at 23 weeks

Author: HUNT, B.J., MISSFELDER-LOBOS, H., PARRA-CORDERO, M., FLETCHER, O., PARMAR, K., LEFKOU, E., and LEES, C.C.
Published: 2009
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19. Diazinon Toxicity in Broilers

Author: Hill, D. L., Hall, C. I., Sander, J. E., Fletcher, O. J., Page, R. K., and Davis, S. W.
Published: 1994
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20. Comparison of Two Commercial Enzyme-Linked Immunosorbent Assays and Conventional Methods for Avian Serology

Author: Thayer, S. G., Villegas, P., and Fletcher, O. J.
Published: 1987
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21. The Effect on Newborn Chicks of Oral Inoculation of Reovirus Isolated from Chickens with Tenosynovitis

Author: Tang, Kai N., Fletcher, O. J., and Villegas, P.
Published: 1987
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22. Comparative Study of the Pathogenicity of Avian Reoviruses

Author: Tang, Kai N., Fletcher, O. J., and Villegas, P.
Published: 1987
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23. Comparison of Serological Tests for Antibodies against Newcastle Disease Virus and Infectious Bronchitis Virus Using ImmunoComb® Solid-Phase Immunoassay, a Commercial Enzyme-Linked Immunosorbent Assay, and the Hemagglutination-Inhibition Assay

Author: Thayer, S. G., Nersessian, B. N., Rivetz, B., and Fletcher, O. J.
Published: 1987
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24. Application of the Avidin-Biotin-Peroxidase Complex (ABC) Technique for Detecting Avian Reovirus in Chickens

Author: Tang, Kai N. and Fletcher, O. J.
Published: 1987
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25. Microscopic and Ultrastructural Renal Pathology of Oosporein-Induced Toxicosis in Broiler Chicks

Author: Brown, T. P., Fletcher, O. J., Osuna, O., and Wyatt, R. D.
Published: 1987
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26. The Individual and Combined Effects of Citrinin and Ochratoxin A on Renal Ultrastructure in Layer Chicks

Author: Brown, T. P., Manning, R. O., Fletcher, O. J., and Wyatt, R. D.
Published: 1986
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27. Ultrastructural Postmortem Changes in Chicken Kidneys at 27 C

Author: Brown, T. P. and Fletcher, O. J.
Published: 1986
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28. Ophthalmopathy in a Broiler Breeder Flock Reared in Dark-Out Housing

Author: Cummings, Timothy S., French, J. D., and Fletcher, O. J.
Published: 1986
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29. Aspergillosis in Turkeys Associated with Use of Contaminated Litter

Author: Dyar, P. M., Fletcher, O. J., and Page, R. K.
Published: 1984
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30. The Individual and Combined Effects of Citrinin and Ochratoxin A in Broiler Chicks

Author: Manning, R. O., Brown, T. P., Wyatt, R. D., and Fletcher, O. J.
Published: 1985
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31. A Study of Breeder Vaccination Programs and Problems in the Broiler Progeny in Saskatchewan Utilizing Enzyme-Linked Immunosorbent Assay

Author: Little, K. S., Thayer, S. G., Fletcher, O. J., and Riddell, C.
Published: 1988
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32. Isolation, Identification, and Pathogenicity of Two Field Strains of Infectious Bursal Disease Virus

Author: Rosales, A. G., Villegas, P., Lukert, P. D., Fletcher, O. J., Mohamed, M. A., and Brown, J.
Published: 1989
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33. Immunosuppressive Potential and Pathogenicity of a Recent Isolate of Infectious Bursal Disease Virus in Commercial Broiler Chickens

Author: Rosales, A. G., Villegas, P., Lukert, P. D., Fletcher, O. J., and Brown, J.
Published: 1989
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34. Pathogenicity of Recent Isolates of Infectious Bursal Disease Virus in Specific-Pathogen-Free Chickens: Protection Conferred by an Intermediate Vaccine Strain

Author: Rosales, A. G., Villegas, P., Lukert, P. D., Fletcher, O. J., Mohamed, M. A., and Brown, J.
Published: 1989
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35. Vaccination of Day-Old Broilers against Infectious Bronchitis: Effect of Vaccine Strain and Route of Administration

Author: Andrade, Luis F., Villegas, P., and Fletcher, O. J.
Published: 1983
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36. Viral Tissue Tropisms and Interferon Production in White Leghorn Chickens Infected with Two Avian Reovirus Strains

Author: Ellis, M. N., Eidson, C. S., Fletcher, O. J., and Kleven, S. H.
Published: 1983
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37. Malabsorption Syndrome in Broiler Chickens

Author: Page, R. K., Fletcher, O. J., Rowland, George N., Gaudry, Daniel, and Villegas, Pedro
Published: 1982
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38. Evaluation of Ciliary Movement in Tracheal Rings to Assess Immunity against Infectious Bronchitis Virus

Author: Andrade, Luis F., Villegas, P., Fletcher, O. J., and Laudencia, R.
Published: 1982
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39. Infectious Tenosynovitis in Young Turkeys

Author: Page, R. K., Fletcher,, O. J., and Villegas, Pedro
Published: 1982
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40. Influence of Low Levels of Ochratoxin A on Egg Production, Egg-Shell Stains, and Serum Uric-Acid Levels in Leghorn-Type Hens

Author: Page, R. K., Stewart, Greg, Wyatt, Roger, Bush, Parshall, Fletcher, O. J., and Brown, Jack
Published: 1980
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41. A Viral Disease of Fledgling Budgerigars

Author: Davis, R. B., Bozeman, L. H., Gaudry, D., Fletcher, O. J., Lukert, P. D., and Dykstra, M. J.
Published: 1981
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42. Characterization of a Papovavirus Isolated from Fledgling Budgerigars

Author: Bozeman, L. H., Davis, R. B., Gaudry, D., Lukert, P. D., Fletcher, O. J., and Dykstra, M. J.
Published: 1981
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