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Cheng H, Cai S, Hao M, Cai Y, Wen Y, Huang W, Mei D, Hu Q. Targeted mutagenesis of BnTTG1 homologues generated yellow-seeded rapeseed with increased oil content and seed germination under abiotic stress. Plant Physiol Biochem 2024; 206:108302. [PMID: 38171134 DOI: 10.1016/j.plaphy.2023.108302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/24/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024]
Abstract
Yellow seed is one desirable trait with great potential to improve seed oil quality and yield. The present study surveys the redundant role of BnTTG1 genes in the proanthocyanidins (PA) biosynthesis, oil content and abiotic stress resistance. Stable yellow seed mutants were generated after mutating BnTTG1 by CRISPR/Cas9 genome editing system. Yellow seed phenotype could be obtained only when both functional homologues of BnTTG1 were simultaneously knocked out. Homozygous mutants of BnTTG1 homologues showed decreased thickness and PA accumulation in seed coat. Transcriptome and qRT-PCR analysis indicated that BnTTG1 mutation inhibited the expression of genes involved in phenylpropanoid and flavonoid biosynthetic pathways. Increased seed oil content and alteration of fatty acid (FA) composition were observed in homozygous mutants of BnTTG1 with enriched expression of genes involved in FA biosynthesis pathway. In addition, target mutation of BnTTG1 accelerated seed germination rate under salt and cold stresses. Enhanced seed germination capacity in BnTTG1 mutants was correlated with the change of expression level of ABA responsive genes. Overall, this study elucidated the redundant role of BnTTG1 in regulating seed coat color and established an efficient approach for generating yellow-seeded oilseed rape genetic resources with increase oil content, modified FA composition and resistance to multiple abiotic stresses.
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Affiliation(s)
- Hongtao Cheng
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China.
| | - Shengli Cai
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China.
| | - Mengyu Hao
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China.
| | - Yating Cai
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China.
| | - Yunfei Wen
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China.
| | - Wei Huang
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha, 410125, China.
| | - Desheng Mei
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China.
| | - Qiong Hu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China; Hubei Hongshan Laboratory, Wuhan, China.
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Abstract
Precision medicine is an old concept, but it is not widely applied across human health conditions as yet. Numerous attempts have been made to apply precision medicine in epilepsy, this has been based on a better understanding of aetiological mechanisms and deconstructing disease into multiple biological subsets. The scope of precision medicine is to provide effective strategies for treating individual patients with specific agent(s) that are likely to work best based on the causal biological make-up. We provide an overview of the main applications of precision medicine in epilepsy, including the current limitations and pitfalls, and propose potential strategies for implementation and to achieve a higher rate of success in patient care. Such strategies include establishing a definition of precision medicine and its outcomes; learning from past experiences, from failures and from other fields (e.g. oncology); using appropriate precision medicine strategies (e.g. drug repurposing versus traditional drug discovery process); and using adequate methods to assess efficacy (e.g. randomised controlled trials versus alternative trial designs). Although the progress of diagnostic techniques now allows comprehensive characterisation of each individual epilepsy condition from a molecular, biological, structural and clinical perspective, there remain challenges in the integration of individual data in clinical practice to achieve effective applications of precision medicine in this domain.
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Affiliation(s)
- S Balestrini
- Neuroscience Department, Meyer Children's Hospital IRCSS, Florence, Italy
- University of Florence, Florence, Italy
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, UK
- Chalfont Centre for Epilepsy, Chalfont St Peter, UK
| | - D Mei
- Neuroscience Department, Meyer Children's Hospital IRCSS, Florence, Italy
| | - S M Sisodiya
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, UK
- Chalfont Centre for Epilepsy, Chalfont St Peter, UK
| | - Renzo Guerrini
- Neuroscience Department, Meyer Children's Hospital IRCSS, Florence, Italy.
- University of Florence, Florence, Italy.
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3
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Gan PXL, Liao W, Linke KM, Mei D, Wu XD, Wong WSF. Targeting the renin angiotensin system for respiratory diseases. Adv Pharmacol 2023; 98:111-144. [PMID: 37524485 DOI: 10.1016/bs.apha.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
Renin-angiotensin system (RAS) plays an indispensable role in regulating blood pressure through its effects on fluid and electrolyte balance. As an aside, cumulative evidence from experimental to clinical studies supports the notion that dysregulation of RAS contributes to the pro-inflammatory, pro-oxidative, and pro-fibrotic processes that occur in pulmonary diseases like asthma, chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), and acute lung injury (ALI). Pharmacological intervention of the various RAS components can be a novel therapeutic strategy for the treatment of these respiratory diseases. In this chapter, we first give a recent update on the RAS, and then compile, review, and analyse recent reports on targeting RAS components as treatments for respiratory diseases. Inhibition of the pro-inflammatory renin, angiotensin-converting enzyme (ACE), angiotensin (Ang) II, and Ang II type 1 receptor (AT1R) axis, and activation of the protective ACE2, AT2R, Ang (1-7), and Mas receptor axis have demonstrated varying degrees of efficacies in experimental respiratory disease models or in human trials. The newly identified alamandine/Mas-related G-protein-coupled receptor member D pathway has shown some therapeutic promise as well. However, our understanding of the RAS ligand-and-receptor interactions is still inconclusive, and the modes of action and signaling cascade mediating the newly identified RAS receptors remain to be better characterized. Clinical data are obviously lacking behind the promising pre-clinical findings of certain well-established molecules targeting at different pathways of the RAS in respiratory diseases. Translational human studies should be the focus for RAS drug development in lung diseases in the next decade.
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Affiliation(s)
- Phyllis X L Gan
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore, Singapore
| | - W Liao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore, Singapore; Singapore-HUJ Alliance for Research Enterprise, National University of Singapore, Singapore, Singapore
| | - Kira M Linke
- Department of Pharmacology, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
| | - D Mei
- Department of Respiratory and Critical Care Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, P.R. China
| | - X D Wu
- Department of Respiratory and Critical Care Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, P.R. China
| | - W S Fred Wong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore, Singapore; Singapore-HUJ Alliance for Research Enterprise, National University of Singapore, Singapore, Singapore; Drug Discovery and Optimization Platform, National University Health System, Singapore, Singapore.
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Girardi F, Matz M, Stiller C, You H, Marcos Gragera R, Valkov MY, Bulliard JL, De P, Morrison D, Wanner M, O'Brian DK, Saint-Jacques N, Coleman MP, Allemani C, Hamdi-Chérif M, Kara L, Meguenni K, Regagba D, Bayo S, Cheick Bougadari T, Manraj SS, Bendahhou K, Ladipo A, Ogunbiyi OJ, Somdyala NIM, Chaplin MA, Moreno F, Calabrano GH, Espinola SB, Carballo Quintero B, Fita R, Laspada WD, Ibañez SG, Lima CA, Da Costa AM, De Souza PCF, Chaves J, Laporte CA, Curado MP, de Oliveira JC, Veneziano CLA, Veneziano DB, Almeida ABM, Latorre MRDO, Rebelo MS, Santos MO, Azevedo e Silva G, Galaz JC, Aparicio Aravena M, Sanhueza Monsalve J, Herrmann DA, Vargas S, Herrera VM, Uribe CJ, Bravo LE, Garcia LS, Arias-Ortiz NE, Morantes D, Jurado DM, Yépez Chamorro MC, Delgado S, Ramirez M, Galán Alvarez YH, Torres P, Martínez-Reyes F, Jaramillo L, Quinto R, Castillo J, Mendoza M, Cueva P, Yépez JG, Bhakkan B, Deloumeaux J, Joachim C, Macni J, Carrillo R, Shalkow Klincovstein J, Rivera Gomez R, Perez P, Poquioma E, Tortolero-Luna G, Zavala D, Alonso R, Barrios E, Eckstrand A, Nikiforuk C, Woods RR, Noonan G, Turner D, Kumar E, Zhang B, Dowden JJ, Doyle GP, Saint-Jacques N, Walsh G, Anam A, De P, McClure CA, Vriends KA, Bertrand C, Ramanakumar AV, Davis L, Kozie S, Freeman T, George JT, Avila RM, O’Brien DK, Holt A, Almon L, Kwong S, Morris C, Rycroft R, Mueller L, Phillips CE, Brown H, Cromartie B, Ruterbusch J, Schwartz AG, Levin GM, Wohler B, Bayakly R, Ward KC, Gomez SL, McKinley M, Cress R, Davis J, Hernandez B, Johnson CJ, Morawski BM, Ruppert LP, Bentler S, Charlton ME, Huang B, Tucker TC, Deapen D, Liu L, Hsieh MC, Wu XC, Schwenn M, Stern K, Gershman ST, Knowlton RC, Alverson G, Weaver T, Desai J, Rogers DB, Jackson-Thompson J, Lemons D, Zimmerman HJ, Hood M, Roberts-Johnson J, Hammond W, Rees JR, Pawlish KS, Stroup A, Key C, Wiggins C, Kahn AR, Schymura MJ, Radhakrishnan S, Rao C, Giljahn LK, Slocumb RM, Dabbs C, Espinoza RE, Aird KG, Beran T, Rubertone JJ, Slack SJ, Oh J, Janes TA, Schwartz SM, Chiodini SC, Hurley DM, Whiteside MA, Rai S, Williams MA, Herget K, Sweeney C, Kachajian J, Keitheri Cheteri MB, Migliore Santiago P, Blankenship SE, Conaway JL, Borchers R, Malicki R, Espinoza J, Grandpre J, Weir HK, Wilson R, Edwards BK, Mariotto A, Rodriguez-Galindo C, Wang N, Yang L, Chen JS, Zhou Y, He YT, Song GH, Gu XP, Mei D, Mu HJ, Ge HM, Wu TH, Li YY, Zhao DL, Jin F, Zhang JH, Zhu FD, Junhua Q, Yang YL, Jiang CX, Biao W, Wang J, Li QL, Yi H, Zhou X, Dong J, Li W, Fu FX, Liu SZ, Chen JG, Zhu J, Li YH, Lu YQ, Fan M, Huang SQ, Guo GP, Zhaolai H, Wei K, Chen WQ, Wei W, Zeng H, Demetriou AV, Mang WK, Ngan KC, Kataki AC, Krishnatreya M, Jayalekshmi PA, Sebastian P, George PS, Mathew A, Nandakumar A, Malekzadeh R, Roshandel G, Keinan-Boker L, Silverman BG, Ito H, Koyanagi Y, Sato M, Tobori F, Nakata I, Teramoto N, Hattori M, Kaizaki Y, Moki F, Sugiyama H, Utada M, Nishimura M, Yoshida K, Kurosawa K, Nemoto Y, Narimatsu H, Sakaguchi M, Kanemura S, Naito M, Narisawa R, Miyashiro I, Nakata K, Mori D, Yoshitake M, Oki I, Fukushima N, Shibata A, Iwasa K, Ono C, Matsuda T, Nimri O, Jung KW, Won YJ, Alawadhi E, Elbasmi A, Ab Manan A, Adam F, Nansalmaa E, Tudev U, Ochir C, Al Khater AM, El Mistiri MM, Lim GH, Teo YY, Chiang CJ, Lee WC, Buasom R, Sangrajrang S, Suwanrungruang K, Vatanasapt P, Daoprasert K, Pongnikorn D, Leklob A, Sangkitipaiboon S, Geater SL, Sriplung H, Ceylan O, Kög I, Dirican O, Köse T, Gurbuz T, Karaşahin FE, Turhan D, Aktaş U, Halat Y, Eser S, Yakut CI, Altinisik M, Cavusoglu Y, Türkköylü A, Üçüncü N, Hackl M, Zborovskaya AA, Aleinikova OV, Henau K, Van Eycken L, Atanasov TY, Valerianova Z, Šekerija M, Dušek L, Zvolský M, Steinrud Mørch L, Storm H, Wessel Skovlund C, Innos K, Mägi M, Malila N, Seppä K, Jégu J, Velten M, Cornet E, Troussard X, Bouvier AM, Guizard AV, Bouvier V, Launoy G, Dabakuyo Yonli S, Poillot ML, Maynadié M, Mounier M, Vaconnet L, Woronoff AS, Daoulas M, Robaszkiewicz M, Clavel J, Poulalhon C, Desandes E, Lacour B, Baldi I, Amadeo B, Coureau G, Monnereau A, Orazio S, Audoin M, D’Almeida TC, Boyer S, Hammas K, Trétarre B, Colonna M, Delafosse P, Plouvier S, Cowppli-Bony A, Molinié F, Bara S, Ganry O, Lapôtre-Ledoux B, Daubisse-Marliac L, Bossard N, Uhry Z, Estève J, Stabenow R, Wilsdorf-Köhler H, Eberle A, Luttmann S, Löhden I, Nennecke AL, Kieschke J, Sirri E, Justenhoven C, Reinwald F, Holleczek B, Eisemann N, Katalinic A, Asquez RA, Kumar V, Petridou E, Ólafsdóttir EJ, Tryggvadóttir L, Murray DE, Walsh PM, Sundseth H, Harney M, Mazzoleni G, Vittadello F, Coviello E, Cuccaro F, Galasso R, Sampietro G, Giacomin A, Magoni M, Ardizzone A, D’Argenzio A, Di Prima AA, Ippolito A, Lavecchia AM, Sutera Sardo A, Gola G, Ballotari P, Giacomazzi E, Ferretti S, Dal Maso L, Serraino D, Celesia MV, Filiberti RA, Pannozzo F, Melcarne A, Quarta F, Andreano A, Russo AG, Carrozzi G, Cirilli C, Cavalieri d’Oro L, Rognoni M, Fusco M, Vitale MF, Usala M, Cusimano R, Mazzucco W, Michiara M, Sgargi P, Boschetti L, Marguati S, Chiaranda G, Seghini P, Maule MM, Merletti F, Spata E, Tumino R, Mancuso P, Cassetti T, Sassatelli R, Falcini F, Giorgetti S, Caiazzo AL, Cavallo R, Piras D, Bella F, Madeddu A, Fanetti AC, Maspero S, Carone S, Mincuzzi A, Candela G, Scuderi T, Gentilini MA, Rizzello R, Rosso S, Caldarella A, Intrieri T, Bianconi F, Contiero P, Tagliabue G, Rugge M, Zorzi M, Beggiato S, Brustolin A, Gatta G, De Angelis R, Vicentini M, Zanetti R, Stracci F, Maurina A, Oniščuka M, Mousavi M, Steponaviciene L, Vincerževskienė I, Azzopardi MJ, Calleja N, Siesling S, Visser O, Johannesen TB, Larønningen S, Trojanowski M, Macek P, Mierzwa T, Rachtan J, Rosińska A, Kępska K, Kościańska B, Barna K, Sulkowska U, Gebauer T, Łapińska JB, Wójcik-Tomaszewska J, Motnyk M, Patro A, Gos A, Sikorska K, Bielska-Lasota M, Didkowska JA, Wojciechowska U, Forjaz de Lacerda G, Rego RA, Carrito B, Pais A, Bento MJ, Rodrigues J, Lourenço A, Mayer-da-Silva A, Coza D, Todescu AI, Valkov MY, Gusenkova L, Lazarevich O, Prudnikova O, Vjushkov DM, Egorova A, Orlov A, Pikalova LV, Zhuikova LD, Adamcik J, Safaei Diba C, Zadnik V, Žagar T, De-La-Cruz M, Lopez-de-Munain A, Aleman A, Rojas D, Chillarón RJ, Navarro AIM, Marcos-Gragera R, Puigdemont M, Rodríguez-Barranco M, Sánchez Perez MJ, Franch Sureda P, Ramos Montserrat M, Chirlaque López MD, Sánchez Gil A, Ardanaz E, Guevara M, Cañete-Nieto A, Peris-Bonet R, Carulla M, Galceran J, Almela F, Sabater C, Khan S, Pettersson D, Dickman P, Staehelin K, Struchen B, Egger Hayoz C, Rapiti E, Schaffar R, Went P, Mousavi SM, Bulliard JL, Maspoli-Conconi M, Kuehni CE, Redmond SM, Bordoni A, Ortelli L, Chiolero A, Konzelmann I, Rohrmann S, Wanner M, Broggio J, Rashbass J, Stiller C, Fitzpatrick D, Gavin A, Morrison DS, Thomson CS, Greene G, Huws DW, Grayson M, Rawcliffe H, Allemani C, Coleman MP, Di Carlo V, Girardi F, Matz M, Minicozzi P, Sanz N, Ssenyonga N, James D, Stephens R, Chalker E, Smith M, Gugusheff J, You H, Qin Li S, Dugdale S, Moore J, Philpot S, Pfeiffer R, Thomas H, Silva Ragaini B, Venn AJ, Evans SM, Te Marvelde L, Savietto V, Trevithick R, Aitken J, Currow D, Fowler C, Lewis C. Global survival trends for brain tumors, by histology: analysis of individual records for 556,237 adults diagnosed in 59 countries during 2000-2014 (CONCORD-3). Neuro Oncol 2023; 25:580-592. [PMID: 36355361 PMCID: PMC10013649 DOI: 10.1093/neuonc/noac217] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Survival is a key metric of the effectiveness of a health system in managing cancer. We set out to provide a comprehensive examination of worldwide variation and trends in survival from brain tumors in adults, by histology. METHODS We analyzed individual data for adults (15-99 years) diagnosed with a brain tumor (ICD-O-3 topography code C71) during 2000-2014, regardless of tumor behavior. Data underwent a 3-phase quality control as part of CONCORD-3. We estimated net survival for 11 histology groups, using the unbiased nonparametric Pohar Perme estimator. RESULTS The study included 556,237 adults. In 2010-2014, the global range in age-standardized 5-year net survival for the most common sub-types was broad: in the range 20%-38% for diffuse and anaplastic astrocytoma, from 4% to 17% for glioblastoma, and between 32% and 69% for oligodendroglioma. For patients with glioblastoma, the largest gains in survival occurred between 2000-2004 and 2005-2009. These improvements were more noticeable among adults diagnosed aged 40-70 years than among younger adults. CONCLUSIONS To the best of our knowledge, this study provides the largest account to date of global trends in population-based survival for brain tumors by histology in adults. We have highlighted remarkable gains in 5-year survival from glioblastoma since 2005, providing large-scale empirical evidence on the uptake of chemoradiation at population level. Worldwide, survival improvements have been extensive, but some countries still lag behind. Our findings may help clinicians involved in national and international tumor pathway boards to promote initiatives aimed at more extensive implementation of clinical guidelines.
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Affiliation(s)
- Fabio Girardi
- Cancer Survival Group, London School of Hygiene and Tropical Medicine, London, UK.,Cancer Division, University College London Hospitals NHS Foundation Trust, London, UK.,Division of Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Melissa Matz
- Cancer Survival Group, London School of Hygiene and Tropical Medicine, London, UK
| | - Charles Stiller
- National Cancer Registration and Analysis Service, Public Health England, London, UK
| | - Hui You
- Cancer Information Analysis Unit, Cancer Institute NSW, St Leonards, New South Wales, Australia
| | - Rafael Marcos Gragera
- Epidemiology Unit and Girona Cancer Registry, Catalan Institute of Oncology, Girona, Spain
| | - Mikhail Y Valkov
- Department of Radiology, Radiotherapy and Oncology, Northern State Medical University, Arkhangelsk, Russia
| | - Jean-Luc Bulliard
- Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland.,Neuchâtel and Jura Tumour Registry, Neuchâtel, Switzerland
| | - Prithwish De
- Surveillance and Cancer Registry, and Research Office, Clinical Institutes and Quality Programs, Ontario Health, Toronto, Ontario, Canada
| | - David Morrison
- Scottish Cancer Registry, Public Health Scotland, Edinburgh, UK
| | - Miriam Wanner
- Cancer Registry Zürich, Zug, Schaffhausen and Schwyz, University Hospital Zürich, Zürich, Switzerland
| | - David K O'Brian
- Alaska Cancer Registry, Alaska Department of Health and Social Services, Anchorage, Alaska, USA
| | - Nathalie Saint-Jacques
- Department of Medicine and Community Health and Epidemiology, Centre for Clinical Research, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Michel P Coleman
- Cancer Survival Group, London School of Hygiene and Tropical Medicine, London, UK.,Cancer Division, University College London Hospitals NHS Foundation Trust, London, UK
| | - Claudia Allemani
- Cancer Survival Group, London School of Hygiene and Tropical Medicine, London, UK
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Xue M, Turpin W, Haim L, Lee SH, Neustaeter A, Mei D, Xu W, Espin-Garcia O, Madsen KL, Guttman DS, Griffiths AM, Huynh H, Turner D, Panancionne R, Steinhart H, Aumais G, Bitton A, Jacobson K, Mack D, Croitoru K. A198 THE LONG-TERM IMPACT OF ENVIRONMENTAL EXPOSURES ON HOST HEALTH AND THE RISK FACTORS OF CROHN'S DISEASE. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991169 DOI: 10.1093/jcag/gwac036.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background Several environmental factors are associated with Crohn’s disease (CD) in large case-control studies; however, it is not clear how these factors maybe be influenced by age of exposure and if they are related to alterations in pre-disease biological markers of CD risk. Purpose To investigate the association between environmental factors in different age groups with future risk of CD onset and assess their relation to other pre-disease biomarkers. Method We used an environmental risk assessment questionnaire (ERA) to collect information from healthy first-degree relatives(FDR) of CD enrolled in the CCC-GEM project. ERA was a multi-item questionnaire querying 69 questions under 7 section headings: background, cultural/ethnic, smoking history, medical history, family history, environmental history and pet history. For the environmental and pet sections, current and historical (<1, 2-4, 5-15 years old) data was captured at the time of recruitment. We used Cox proportional hazard models to identify exposures associated with future CD onset. Next, we used regression models to identify the relationship of exposures with biological factors associated with CD risk previously identified by our group i.e.: i) intestinal permeability using urinary fractional excretion of lactulose to mannitol ratio (LMR) with LMR≥0.025 defined as abnormal; ii) subclinical inflammation using fecal calprotectin (FCP) with FCP≥100µg/g; and iii) fecal microbiome composition and diversity using 16S rDNA sequencing. Two-sided p<0.05 (or false discovery rate corrected p<0.05) were considered significant. Result(s) A total of 4289 FDRs were recruited, 47% were male, median recruitment age was 17.0 years[6-35]. After a median follow-up of 5.6-years (IQR=3.42-8.67), 86 FDRs developed CD. Living with a dog between age 5-15 (Hazard Ratio (HR)=0.61; 95% confidence interval (CI)=0.39-0.95), and a large family size (>3) in the first year of life (HR=0.41; 95% CI=0.22-0.89) were protective against CD onset. Conversely, having a bird at time of survey (HR=2.84; CI=1.37-5.90), and having a sibling with CD (HR=2.07; 95% CI=1.18-3.63) were risk factors for CD onset. We found that owning a dog between age of 5-15 (Odd Ratio(OR)=0.77, 95% CI=0.65-0.90) was significantly associated with LMR, nine taxa bacterial and higher chao1 diversity index. Having a bird at time of survey was significantly associated with FCP (OR=2.04, 95% CI=1.33-3.11). There was no association between large family size and having a CD sibling with gut microbiome, FCP or LMR. Conclusion(s) The study identified four environmental factors associated with future development of CD. Among them, exposure to dogs during early life was protective against CD onset and might be explained by its association with normal gut permeability and microbiome. We also identified that having a bird at recruitment increased risk of CD onset which might be mediated by an increase in subclinical inflammation. Submitted on behalf of the CCC-GEM consortium Disclosure of Interest None Declared
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Affiliation(s)
- M Xue
- Lunenfeld-Tanenbaum Research Institute
| | - W Turpin
- Lunenfeld-Tanenbaum Research Institute
| | - L Haim
- Lunenfeld-Tanenbaum Research Institute
| | - S -H Lee
- Lunenfeld-Tanenbaum Research Institute
| | | | - D Mei
- Dalla Lana School of Public Health, University of Toronto, Toronto
| | - W Xu
- Dalla Lana School of Public Health, University of Toronto, Toronto
| | - O Espin-Garcia
- Dalla Lana School of Public Health, University of Toronto, Toronto
| | | | - D S Guttman
- Department of Cell & Systems Biology, University of Toronto
| | - A M Griffiths
- Paediatrics, The Hospital for Sick Children, Toronto, Canada
| | - H Huynh
- University of Alberta, Alberta
| | - D Turner
- The Hebrew University of Jerusalem, Jerusalem, Israel
| | | | | | | | | | - K Jacobson
- University of British Columbia, Vancouver
| | - D Mack
- Children’s Hospital of Eastern Ontario and University of Ottawa, Ottawa, Canada
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Luo D, Mei D, Wei W, Liu J. Identification and Phylogenetic Analysis of the R2R3-MYB Subfamily in Brassica napus. Plants (Basel) 2023; 12:plants12040886. [PMID: 36840234 PMCID: PMC9962269 DOI: 10.3390/plants12040886] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 05/22/2023]
Abstract
The R2R3-MYB sub-family proteins are composed of most members of MYB (v-Myb avian myeloblastosis viral oncogene homolog) protein, a plant-specific transcription factor (TF) that is classified into four classes depending on the number of MYB repeats. R2R3-MYB TFs are involved in physiological and biochemical processes. However, the functions of the Brassica napus R2R3-MYB genes are still mainly unknown. In this study, 35 Brassica napus MYB (BnaMYB) genes were screened in the genome of Brassica napus, and details about their physical and chemical characteristics, evolutionary relationships, chromosome locations, gene structures, three-dimensional protein structures, cis-acting promoter elements, and gene duplications were uncovered. The BnaMYB genes have undergone segmental duplications and positive selection pressure, according to evolutionary studies. The same subfamilies have similar intron-exon patterns and motifs, according to the genes' structure and conserved motifs. Additionally, through cis-element analysis, many drought-responsive and other stress-responsive cis-elements have been found in the promoter regions of the BnaMYB genes. The expression of the BnaMYB gene displays a variety of tissue-specific patterns. Ten lignin-related genes were chosen for drought treatment. Our research screened four genes that showed significant upregulation under drought stress, and thus may be important drought-responsive genes. The findings lay a new foundation for understanding the complex mechanisms of BnaMYB in multiple developmental stages and pathways related to drought stress in rapeseed.
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Affiliation(s)
- Dingfan Luo
- College of Agriculture, Yangtze University, Jingzhou 434023, China
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, No. 2 Xudong 2nd Rd., Wuhan 430062, China
| | - Desheng Mei
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, No. 2 Xudong 2nd Rd., Wuhan 430062, China
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan 430062, China
| | - Wenliang Wei
- College of Agriculture, Yangtze University, Jingzhou 434023, China
- Correspondence: (W.W.); (J.L.)
| | - Jia Liu
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, No. 2 Xudong 2nd Rd., Wuhan 430062, China
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan 430062, China
- Correspondence: (W.W.); (J.L.)
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Caporalini C, Scagnet M, Giunti L, Cetica V, Mei D, Conti V, Moscardi S, Macconi L, Giordano F, D'Incerti L, Genitori L, Guerrini R, Buccoliero A. Myxoid glioneuronal tumor: Histopathologic, neuroradiologic, and molecular features in a single center series. Neoplasia 2023; 37:100885. [PMID: 36764090 PMCID: PMC9929589 DOI: 10.1016/j.neo.2023.100885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 01/17/2023] [Accepted: 02/01/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND Myxoid glioneuronal tumor (MGT) is a benign glioneuronal neoplasm recently introduced in the World Health Organization (WHO) classification of the central nervous system (CNS) tumors. MGTs are typically located in the septum pellucidum, foramen of Monro or periventricular white matter of the lateral ventricle. They were previously diagnosed as dysembryoplastic neuroepithelial tumors (DNT), showing histological features almost indistinguishable from classical cortical DNT. Despite that, MGTs have been associated with a specific dinucleotide substitution at codon 385 in the platelet-derived growth factor receptor alpha (PDGFRA) gene, replacing a lysine residue with either leucine or isoleucine (p. LysK385Leu/Iso). This genetic variation has never been described in any other CNS tumor. MATERIALS AND METHODS Thirty-one consecutive tumors, previously diagnosed as DNTs at the Meyer Children's Hospital IRCCS between January 2010 and June 2021 were collected for a comprehensive study of their clinical, imaging, pathological features, and molecular profile. RESULTS In six out of the thirty-one tumors we had previously diagnosed as DNTs, we identified the recurrent dinucleotide mutation in the PDGFRA. All six tumors were typically located within the periventricular white matter of the lateral ventricle and in the septum pellucidum. We then renamed these lesions as MGT, according to the latest WHO CNS classification. In all patients we observed an indolent clinical course, without recurrence. CONCLUSION MGT represent a rare but distinct group of neoplasm with a typical molecular profiling, a characteristic localization, and a relative indolent clinical course.
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Affiliation(s)
- C. Caporalini
- Pathology Unit, Meyer Children's Hospital IRCCS, Viale Pieraccini 24, Florence 50100, Italy,Corresponding author.
| | - M. Scagnet
- Neurosurgery Unit, Meyer Children's Hospital IRCCS, Florence, Italy
| | - L. Giunti
- Neuro-Oncology Unit, Department of Pediatric Oncology, Meyer Children's Hospital IRCCS, Florence, Italy
| | - V. Cetica
- Neuroscience Department, Meyer Children's Hospital IRCCS, Florence, Italy
| | - D. Mei
- Neuroscience Department, Meyer Children's Hospital IRCCS, Florence, Italy
| | - V. Conti
- Neuroscience Department, Meyer Children's Hospital IRCCS, Florence, Italy
| | - S. Moscardi
- Pathology Unit, Meyer Children's Hospital IRCCS, Viale Pieraccini 24, Florence 50100, Italy
| | - L. Macconi
- Radiology Unit, Meyer Children's Hospital IRCCS, Florence, Italy
| | - F. Giordano
- Neurosurgery Unit, Meyer Children's Hospital IRCCS, Florence, Italy
| | - L. D'Incerti
- Radiology Unit, Meyer Children's Hospital IRCCS, Florence, Italy
| | - L. Genitori
- Neurosurgery Unit, Meyer Children's Hospital IRCCS, Florence, Italy
| | - R. Guerrini
- Neuroscience Department, Meyer Children's Hospital IRCCS, Florence, Italy
| | - A.M. Buccoliero
- Pathology Unit, Meyer Children's Hospital IRCCS, Viale Pieraccini 24, Florence 50100, Italy
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Hao M, Wang W, Liu J, Wang H, Zhou R, Mei D, Fu L, Hu Q, Cheng H. Auxin Biosynthesis Genes in Allotetraploid Oilseed Rape Are Essential for Plant Development and Response to Drought Stress. Int J Mol Sci 2022; 23:15600. [PMID: 36555242 PMCID: PMC9778849 DOI: 10.3390/ijms232415600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/03/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
Crucial studies have verified that IAA is mainly generated via the two-step pathway in Arabidopsis, in which tryptophan aminotransferase (TAA) and YUCCA (YUC) are the two crucial enzymes. However, the role of the TAA (or TAR) and YUC genes in allotetraploid oilseed rape underlying auxin biosynthesis and development regulation remains elusive. In the present study, all putative TAR and YUC genes were identified in B. napus genome. Most TAR and YUC genes were tissue that were specifically expressed. Most YUC and TAR proteins contained trans-membrane regions and were confirmed to be endoplasmic reticulum localizations. Enzymatic activity revealed that YUC and TAR protein members were involved in the conversion of IPA to IAA and Trp to IPA, respectively. Transgenic plants overexpressing BnaYUC6a in both Arabidopsis and B. napus displayed high auxin production and reduced plant branch angle, together with increased drought resistance. Moreover, mutation in auxin biosynthesis BnaTARs genes by CRISPR/Cas9 caused development defects. All these results suggest the convergent role of BnaYUC and BnaTAR genes in auxin biosynthesis. Different homoeologs of BnaYUC and BnaTAR may be divergent according to sequence and expression variation. Auxin biosynthesis genes in allotetraploid oilseed rape play a pivotal role in coordinating plant development processes and stress resistance.
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Affiliation(s)
| | | | | | | | | | | | | | - Qiong Hu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan 430062, China
| | - Hongtao Cheng
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan 430062, China
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Ge Y, Zhou J, Zhang B, Mei D, Xu YC, Ma XJ. [Focusing on patient safety and quality of care, exploring long-term antimicrobial stewardship]. Zhonghua Nei Ke Za Zhi 2022; 61:1091-1094. [PMID: 36207964 DOI: 10.3760/cma.j.cn112138-20220509-00351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Y Ge
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Zhou
- Department of Medical Record, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - B Zhang
- Pharmacy Department, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - D Mei
- Pharmacy Department, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y C Xu
- Laboratory Department, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X J Ma
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Monari D, Mei D, Mantovani F, Guiducci V, Navazio A. P107 MULTIMODALITY IMAGING IN ASCENDING AORTA PSEUDO–ANEURYSM COMPLICATED BY MOBILE TROMBUS SYMPTOMATIC FOR RECURRENT ISCHEMIC STROKE. Eur Heart J Suppl 2022. [DOI: 10.1093/eurheartj/suac012.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
A 80–year–old male patient was admitted to hospital with a clinical picture of Broca‘s aphasia. The patient had arterial hypertension, diabetes, chronic kidney disease and peripheral vasculopathy. In remote cardiological history he presents long standing persistent atrial fibrillation on OAC and he had a biological aortic valve prosthesis (Medtronic 23). Overall time in the therapeutic range (INR 2.0–2.5) was adequate considering the presence of atrial fibrillation. A CT scan was performed on suspicion of stroke, showing a recent ischemic lesion in the left middle temporal region complicated by same–site subarachnoid blood suffusion. During the hospital stay there was a recurrence of the aforementioned symptoms: at the CT check a new acute ischemic same–site lesion and a new ischaemic lesion at the left temporal site was highlighted. In the suspicion of a cardio–embolic origin of cerebro–vascular events, it was decided to carry out imaging for the study of the aorta and heart cavities to exclude embolic sources. Given the patient‘s comorbidities and the reported allergies (contrast medium with angioedema–like reaction at a previous CT) it was decided to perform transesophageal echocardiography (TEE) first. TEE documented the presence of a saccular aneurysm of probable pseudo–aneurysmatic nature, which extends from 20 mm from the valvular plane, characterized by pedunculated, mobile thrombotic apposition, adhered to the internal collar, projecting into the psueudo–aneurysmatic cavity (image 1). This finding was confirmed and better characterized with the help of the real time three–dimensional echocardiographic method (image 2). To confirm and better characterize the extension of the pseudo–aneurysm and plan any strategy, a CT scan with contrast medium was required. Performing contrast–enhanced CT, after careful preparation with premedication with antihistamine and cortisone, confirmed the finding of pseudo–aneurysm of the ascending aorta, but the pedunculated thrombotic apposition was less clearly evidenced compared with TEE (giving the superior temporal resolution of TEE) (image 3). The case was therefore assessed in Heart Team and the patient was scheduled for surgically exclusion of the pseudo–aneurysm.
Conclusion
In our case a multimodality imaging approach was used to diagnose and confirm the presence of ascending aorta pseudo–aneurysm complicated by pedunculated thrombotic apposition inside it, symptomatic for recurrent ischaemic stroke.
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Affiliation(s)
- D Monari
- CARDIOLOGIA, AZIENDA USL, IRCCS DI REGGIO EMILIA E UNIVERSITÀ DEGLI STUDI DI MODENA E REGGIO EMILIA, REGGIO EMILIA; CARDIOLOGIA, AZIANDA USL, IRCCS DI REGGIO EMILIA, REGGIO EMILIA; AZIENDA USL, IRCCS, REGGIO EMILIA
| | - D Mei
- CARDIOLOGIA, AZIENDA USL, IRCCS DI REGGIO EMILIA E UNIVERSITÀ DEGLI STUDI DI MODENA E REGGIO EMILIA, REGGIO EMILIA; CARDIOLOGIA, AZIANDA USL, IRCCS DI REGGIO EMILIA, REGGIO EMILIA; AZIENDA USL, IRCCS, REGGIO EMILIA
| | - F Mantovani
- CARDIOLOGIA, AZIENDA USL, IRCCS DI REGGIO EMILIA E UNIVERSITÀ DEGLI STUDI DI MODENA E REGGIO EMILIA, REGGIO EMILIA; CARDIOLOGIA, AZIANDA USL, IRCCS DI REGGIO EMILIA, REGGIO EMILIA; AZIENDA USL, IRCCS, REGGIO EMILIA
| | - V Guiducci
- CARDIOLOGIA, AZIENDA USL, IRCCS DI REGGIO EMILIA E UNIVERSITÀ DEGLI STUDI DI MODENA E REGGIO EMILIA, REGGIO EMILIA; CARDIOLOGIA, AZIANDA USL, IRCCS DI REGGIO EMILIA, REGGIO EMILIA; AZIENDA USL, IRCCS, REGGIO EMILIA
| | - A Navazio
- CARDIOLOGIA, AZIENDA USL, IRCCS DI REGGIO EMILIA E UNIVERSITÀ DEGLI STUDI DI MODENA E REGGIO EMILIA, REGGIO EMILIA; CARDIOLOGIA, AZIANDA USL, IRCCS DI REGGIO EMILIA, REGGIO EMILIA; AZIENDA USL, IRCCS, REGGIO EMILIA
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Zhang H, Shi Y, Sun M, Hu X, Hao M, Shu Y, Zhou XR, Hu Q, Li C, Mei D. Functional Differentiation of BnVTE4 Gene Homologous Copies in α-Tocopherol Biosynthesis Revealed by CRISPR/Cas9 Editing. Front Plant Sci 2022; 13:850924. [PMID: 35481148 PMCID: PMC9037293 DOI: 10.3389/fpls.2022.850924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
Tocopherols are essential nutrients for human health known as vitamin E. Vitamin E deficiency can have a profound effect on human health, including the central nervous system and cardiovascular and immune protection. Multiple enzymatic steps are involved in the conversion between different forms of tocopherols. Among them, γ-tocopherol methyltransferase encoded by gene VTE4 catalyzes the conversion of γ- to α-tocopherol or δ- to β-tocopherol isoforms. However, the gene copies and their functional contribution of VTE4 homologs in Brassica napus were not elucidated. To this end, different mutation combinations of four putative BnVTE4 homologous copies were generated by using CRISPR/Cas9 genome editing technology. Editing of those BnVTE4 homologs led to a significant change of the α-tocopherol content and the ratio between α- and γ-tocopherol compared with wide-type control. Analysis of the different combinations of BnVTE4-edited homologs revealed that the contribution of the BnVTE4 individual gene displayed obvious functional differentiation in α-tocopherol biosynthesis. Their contribution could be in order of VTE4.C02-2 (BnaC02G0331100ZS) > VTE4.A02-1 (BnaA02G0247300ZS) > VTE4.A02-2 (BnaA02G0154300ZS). Moreover, the VTE4.A02-1 and VTE4.A02-2 copies might have severe functional redundancies in α-tocopherol biosynthesis. Overall, this study systemically studied the different effects of BnVTE4 homologs, which provided a theoretical basis for breeding high α-tocopherol content oilseed rape.
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Affiliation(s)
- Haiyan Zhang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Yuqin Shi
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Mengdan Sun
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Xuezhi Hu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Mengyu Hao
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Yu Shu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Xue-Rong Zhou
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Agriculture and Food, Canberra, ACT, Australia
| | - Qiong Hu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Chao Li
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Desheng Mei
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
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Cursio I, Ronzano N, Asunis M, Dettori M, Cossu S, Murru S, Cau M, Incani F, Mei D, Bianchini C, Scioni M, Pruna D. A peculiar family with recurrent self-limited epileptic syndrome and associated developmental disorders in six girls. Epilepsy Behav Rep 2022; 19:100546. [PMID: 35637976 PMCID: PMC9142554 DOI: 10.1016/j.ebr.2022.100546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 04/14/2022] [Accepted: 04/16/2022] [Indexed: 11/28/2022] Open
Abstract
Self-Limited Epilepsies may evolve to Developmental and/or Epileptic Encephalopathy. Family cases may present with recurrent phenotype and complex genetic background. Genetic testing could not provide useful elements for early aetiological diagnosis. This electroclinical phenotype had remarkable impact on development. It’s important an early identification of genetic risk factors of family cases.
We describe a complex family with two couples (two sisters who married two brothers) with consistent social and neuropsychiatric problems, originally from Sardinia. Each couple had three daughters, which shared electroclinical epileptic syndrome and developmental disorders. All patients suffered from mild to moderate intellectual disability, speech difficulties and behavioural disorders. Four out of six patients had epilepsy onset between 3 and 4 years of age. The epileptic history almost reflected the typical clinical course of a self-Limited Focal Epilepsy of Childhood. However, our patients don’t have the complete features characteristic of one of the four specific self-Limited Focal Epilepsies of Childhood; a progressive evolution into a Developmental and/or Epileptic Encephalopathy with spike-wave activation in sleep was observed in the two older sister of the first family, which developed more severe developmental disorder too. In the other epileptic patients, improvement of EEG pattern was not coincident with an improvement of the developmental disorders. Brain MRI, performed in three patients, showed normal findings. Genetic analysis carried out so far (SNP-array, study of Runs of homozygosity, FMR1 triplet-repeat primer-PCR assay, Next Generation Sequencing based gene panel for epilepsy and neurodevelopmental disorders and Exome Sequencing), did not provide useful elements for an aetiological diagnosis.
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Wang W, Jiang Y, Wang D, Mei D, Xu H, Zhao B. Clinical efficacy of autogenous dentin grafts with guided bone regeneration for horizontal ridge augmentation: a prospective observational study. Int J Oral Maxillofac Surg 2021; 51:837-843. [PMID: 34924269 DOI: 10.1016/j.ijom.2021.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/27/2021] [Accepted: 06/28/2021] [Indexed: 10/19/2022]
Abstract
The aim of this study was to evaluate the efficacy of autogenous dentin grafts with guided bone regeneration (GBR) for horizontal ridge augmentation. Nineteen patients with dentition and bone defects in whom tooth/teeth extraction was indicated were recruited. Autogenous teeth were prepared, fixed on the buccal sides of the defects, and covered with bone powder and resorbable membranes before implantation. The horizontal bone mass at 0 mm (W1), 3 mm (W2), and 6 mm (W3) from the alveolar crest was recorded using cone beam computed tomography, before, immediately after, and 6 months after dentin grafting. All adverse effects were recorded. The implant stability quotient (ISQ) was measured 6 months after implantation. Twenty-eight implants were placed 6 months after dentin grafting. At this time point, the bone mass was 4.72 ± 0.72 mm (W1), 7.35 ± 1.57 mm (W2), and 8.96 ± 2.38 mm (W3), which was significantly different from that before the surgery (P < 0.05). The bone gain was 2.50 ± 0.72 mm (W1), 4.10 ± 1.42 mm (W2), and 4.56 ± 2.09 mm (W3). No soft tissue dehiscence or infection was observed. Overall, 26.3% of the patients experienced severe pain after dentin grafting. The ISQ was 78.31 ± 6.64 at 6 months after implantation. Autogenous tooth roots with GBR might be effective for horizontal ridge augmentation. This technique could be an alternative to augmentation using autogenous bone grafts.
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Affiliation(s)
- W Wang
- Department of Oral Implantology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China; School of Stomatology of Qingdao University, Qingdao, Shandong, China
| | - Y Jiang
- Department of Oral Implantology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - D Wang
- Department of Oral Implantology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - D Mei
- Department of Oral Implantology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - H Xu
- Department of Oral Implantology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - B Zhao
- Department of Oral Implantology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China; State Key Laboratory of Military Stomatology, Shanxi, China.
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Zhu Z, Zhang B, Tang Y, Mei D, Li DK. [Peking Union Medical College Hospital and Its Training of Pharmaceutical Staff in the Republican Period]. Zhonghua Yi Shi Za Zhi 2021; 51:282-288. [PMID: 34794267 DOI: 10.3760/cma.j.cn112155-20200702-00101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Several training programs for the pharmacy staff in the Pharmacy Department of Beijing Union Medical College Hospital were implemented over 1910's to 1942, such as apprenticeships, prior courses on pharmaceutical sciences,vocational training, study overseas, and developing the Beiping Pharmacy Evening School in collaboration with the North China Pharmaceutical Society around the 1930's. These programs explored training models for the hospital, developed practical talent with competence ensuring the needs and requirements within the hospital, established practical education on pharmacy in Beiping and therefore contributed to promoting future pharmaceutical training systems in China.
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Affiliation(s)
- Z Zhu
- Department of Pharmacy, Peking Union Medical College Hospital,Chinese Academy Institute of Medical Sciences-Peking Union Medical College, Beijing 100730, China
| | - B Zhang
- Department of Pharmacy, Peking Union Medical College Hospital,Chinese Academy Institute of Medical Sciences-Peking Union Medical College, Beijing 100730, China
| | - Y Tang
- Department of Pharmacy, Peking Union Medical College Hospital,Chinese Academy Institute of Medical Sciences-Peking Union Medical College, Beijing 100730, China
| | - D Mei
- Department of Pharmacy, Peking Union Medical College Hospital,Chinese Academy Institute of Medical Sciences-Peking Union Medical College, Beijing 100730, China
| | - D K Li
- Department of Pharmacy, Peking Union Medical College Hospital,Chinese Academy Institute of Medical Sciences-Peking Union Medical College, Beijing 100730, China
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Cheng H, Hao M, Ding B, Mei D, Wang W, Wang H, Zhou R, Liu J, Li C, Hu Q. Base editing with high efficiency in allotetraploid oilseed rape by A3A-PBE system. Plant Biotechnol J 2021; 19:87-97. [PMID: 32640102 PMCID: PMC7769242 DOI: 10.1111/pbi.13444] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/21/2020] [Accepted: 06/30/2020] [Indexed: 05/03/2023]
Abstract
CRISPR/Cas-base editing is an emerging technology that could convert a nucleotide to another type at the target site. In this study, A3A-PBE system consisting of human A3A cytidine deaminase fused with a Cas9 nickase and uracil glycosylase inhibitor was established and developed in allotetraploid Brassica napus. We designed three sgRNAs to target ALS, RGA and IAA7 genes, respectively. Base-editing efficiency was demonstrated to be more than 20% for all the three target genes. Target sequencing results revealed that the editing window ranged from C1 to C10 of the PAM sequence. Base-edited plants of ALS conferred high herbicide resistance, while base-edited plants of RGA or IAA7 exhibited decreased plant height. All the base editing could be genetically inherited from T0 to T1 generation. Several Indel mutations were confirmed at the target sites for all the three sgRNAs. Furthermore, though no C to T substitution was detected at the most potential off-target sites, large-scale SNP variations were determined through whole-genome sequencing between some base-edited and wild-type plants. These results revealed that A3A-PBE base-editing system could effectively convert C to T substitution with high-editing efficiency and broadened editing window in oilseed rape. Mutants for ALS, IAA7 and RGA genes could be potentially applied to confer herbicide resistance for weed control or with better plant architecture suitable for mechanic harvesting.
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Affiliation(s)
- Hongtao Cheng
- Oil Crops Research Institute of Chinese Academy of Agricultural SciencesKey Laboratory for Biological Sciences and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Mengyu Hao
- Oil Crops Research Institute of Chinese Academy of Agricultural SciencesKey Laboratory for Biological Sciences and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Bingli Ding
- Oil Crops Research Institute of Chinese Academy of Agricultural SciencesKey Laboratory for Biological Sciences and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Desheng Mei
- Oil Crops Research Institute of Chinese Academy of Agricultural SciencesKey Laboratory for Biological Sciences and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Wenxiang Wang
- Oil Crops Research Institute of Chinese Academy of Agricultural SciencesKey Laboratory for Biological Sciences and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Hui Wang
- Oil Crops Research Institute of Chinese Academy of Agricultural SciencesKey Laboratory for Biological Sciences and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Rijin Zhou
- Oil Crops Research Institute of Chinese Academy of Agricultural SciencesKey Laboratory for Biological Sciences and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Jia Liu
- Oil Crops Research Institute of Chinese Academy of Agricultural SciencesKey Laboratory for Biological Sciences and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Chao Li
- Oil Crops Research Institute of Chinese Academy of Agricultural SciencesKey Laboratory for Biological Sciences and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Qiong Hu
- Oil Crops Research Institute of Chinese Academy of Agricultural SciencesKey Laboratory for Biological Sciences and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
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Liu J, Zhou R, Wang W, Wang H, Qiu Y, Raman R, Mei D, Raman H, Hu Q. A copia-like retrotransposon insertion in the upstream region of the SHATTERPROOF1 gene, BnSHP1.A9, is associated with quantitative variation in pod shattering resistance in oilseed rape. J Exp Bot 2020; 71:5402-5413. [PMID: 32525990 PMCID: PMC7501816 DOI: 10.1093/jxb/eraa281] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 06/10/2020] [Indexed: 05/03/2023]
Abstract
Seed loss resulting from pod shattering is a major constraint in production of oilseed rape (Brassica napus L.). However, the molecular mechanisms underlying pod shatter resistance are not well understood. Here, we show that the pod shatter resistance at quantitative trait locus qSRI.A9.1 is controlled by one of the B. napus SHATTERPROOF1 homologs, BnSHP1.A9, in a doubled haploid population generated from parents designated R1 and R2 as well as in a diverse panel of oilseed rape. The R1 maternal parental line of the doubled haploid population carried the allele for shattering at qSRI.A9.1, while the R2 parental line carried the allele for shattering resistance. Quantitative RT-PCR showed that BnSHP1.A9 was expressed specifically in flower buds, flowers, and developing siliques in R1, while it was not expressed in any tissue of R2. Transgenic plants constitutively expressing either of the BnSHP1.A9 alleles from the R1 and R2 parental lines showed that both alleles are responsible for pod shattering, via a mechanism that promotes lignification of the enb layer. These findings indicated that the allelic differences in the BnSHP1.A9 gene per se are not the causal factor for quantitative variation in shattering resistance at qSRI.A9.1. Instead, a highly methylated copia-like long terminal repeat retrotransposon insertion (4803 bp) in the promotor region of the R2 allele of BnSHP1.A9 repressed the expression of BnSHP1.A9, and thus contributed to pod shatter resistance. Finally, we showed a copia-like retrotransposon-based marker, BnSHP1.A9R2, can be used for marker-assisted breeding targeting the pod shatter resistance trait in oilseed rape.
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Affiliation(s)
- Jia Liu
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan Hubei, P.R. China
| | - Rijin Zhou
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan Hubei, P.R. China
| | - Wenxiang Wang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan Hubei, P.R. China
| | - Hui Wang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan Hubei, P.R. China
| | - Yu Qiu
- NSW Department of Primary Industries, Wagga Wagga Agricultural Institute, PMB, Wagga Wagga, NSW, Australia
| | - Rosy Raman
- NSW Department of Primary Industries, Wagga Wagga Agricultural Institute, PMB, Wagga Wagga, NSW, Australia
| | - Desheng Mei
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan Hubei, P.R. China
| | - Harsh Raman
- NSW Department of Primary Industries, Wagga Wagga Agricultural Institute, PMB, Wagga Wagga, NSW, Australia
| | - Qiong Hu
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan Hubei, P.R. China
- Correspondence:
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Bu B, Yi K, Wang H, Yang M, Wu M, Ping L, Xie Y, Qiu J, Zhao L, Mei D, Wang X, Song Y, Zhu J, Liu W. Hepatitis B virus infection status is not associated with poor prognosis in classical Hodgkin lymphoma patients. Neoplasma 2019; 67:203-208. [PMID: 31829022 DOI: 10.4149/neo_2019_190211n113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 07/09/2019] [Indexed: 11/08/2022]
Abstract
Few studies focused on the relationship between hepatitis B virus (HBV) infection and classical Hodgkin lymphoma (cHL). This study was to evaluate the impact of HBV infection on the treatment outcome and survival of cHL patients. Clinical data of 352 cHL patients treated with ABVD regimen (doxorubicin, bleomycin, vincristine and dacarbazine) between January 2002 and January 2018 were retrospectively collected. According to HBV infection status, the patients were divided into three groups: with HBV infection [hepatitis B surface antigen (HBsAg)-positive], with past HBV infection [HBsAg-negative but anti-hepatitis B core antigen (anti-HBc)-positive], and without HBV infection (HBsAg-negative and anti-HBc-negative). The incidence of HBV infection and past HBV infection in cHL patients were 7.4% (26/352) and 16.5% (58/352), respectively. The median age of patients without HBV infection was lower than those in other two groups (p<0.001). The complete remission rates after first-line therapy were different among 3 groups (65.4% for the group with HBV infection, 87.9% for the group with past HBV infection, and 76.1% for the group without HBV infection, respectively, p=0.049). After a median follow-up of 34.6 months, the 3-year progression-free survival rates for the three groups were 69%, 74% and 80%, respectively (p=0.566) and the 3-year overall survival rates were 72%, 91% and 87%, respectively (p=0.096). No HBV reactivation was observed during chemotherapy among 3 groups, but 1 patient in the group with HBV infection experienced delayed HBV reactivation when prophylactic entecavir was discontinued 12 months after the last cycle of chemotherapy. HBV infection status did not affect the clinical outcome and prognosis of cHL patients, especially in the era of prophylactic antiviral therapy.
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Affiliation(s)
- B Bu
- Department of Medical Oncology, Shandong Cancer Hospital affiliated to Shandong University, Shandong University, Jinan, China
| | - K Yi
- Department of Lymphoma and Hematology, Jiangxi Cancer Hospital, Nanchang University, Nanchang, China
| | - H Wang
- Department of Pediatric Hematology and Oncology, Shandong Provincial Qianfoshan Hospital, First Hospital Affiliated with Shandong First Medical University, Shandong First Medical University, Jinan, China
| | - M Yang
- Department of Lymphoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Peking University, Beijing, China
| | - M Wu
- Department of Lymphoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Peking University, Beijing, China
| | - L Ping
- Department of Lymphoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Peking University, Beijing, China
| | - Y Xie
- Department of Lymphoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Peking University, Beijing, China
| | - J Qiu
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, China
| | - L Zhao
- Department of Lymphoma, Peking University International Hospital, Peking University, Beijing, China
| | - D Mei
- Department of Lymphoma, Peking University International Hospital, Peking University, Beijing, China
| | - X Wang
- Department of Lymphoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Peking University, Beijing, China
| | - Y Song
- Department of Lymphoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Peking University, Beijing, China
| | - J Zhu
- Department of Lymphoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Peking University, Beijing, China
| | - W Liu
- Department of Lymphoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Peking University, Beijing, China
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Zaman QU, Chu W, Hao M, Shi Y, Sun M, Sang SF, Mei D, Cheng H, Liu J, Li C, Hu Q. CRISPR/Cas9-Mediated Multiplex Genome Editing of JAGGED Gene in Brassica napus L. Biomolecules 2019; 9:biom9110725. [PMID: 31726660 PMCID: PMC6921047 DOI: 10.3390/biom9110725] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 11/07/2019] [Indexed: 11/16/2022] Open
Abstract
Pod shattering resistance is an essential component to achieving a high yield, which is a substantial objective in polyploid rapeseed cultivation. Previous studies have suggested that the Arabidopsis JAGGED (JAG) gene is a key factor implicated in the regulatory web of dehiscence fruit. However, its role in controlling pod shattering resistance in oilseed rape is still unknown. In this study, multiplex genome editing was carried out by the CRISPR/Cas9 system on five homoeologs (BnJAG.A02, BnJAG.C02, BnJAG.C06, BnJAG.A07, and BnJAG.A08) of the JAG gene. Knockout mutagenesis of all homoeologs drastically affected the development of the lateral organs in organizing pod shape and size. The cylindrical body of the pod comprised a number of undifferentiated cells like a callus, without distinctive valves, replum, septum, and valve margins. Pseudoseeds were produced, which were divided into two halves with an incomplete layer of cells (probably septum) that separated the undifferentiated cells. These mutants were not capable of generating any productive seeds for further generations. However, one mutant line was identified in which only a BnJAG.A08-NUB-Like paralog of the JAG gene was mutated. Knockout mutagenesis in BnJAG.A08-NUB gene caused significant changes in the pod dehiscence zone. The replum region of the mutant was increased to a great extent, resulting in enlarged cell size, bumpy fruit, and reduced length compared with the wild type. A higher replum-valve joint area may have increased the resistance to pod shattering by ~2-fold in JAG mutants compared with wild type. Our results offer a basis for understanding variations in Brassica napus fruit by mutating JAG genes and providing a way forward for other Brassicaceae species.
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Affiliation(s)
- Qamar U Zaman
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, No. 2 Xudong 2nd Road, Wuhan 430062, China; (Q.U.Z.); (W.C.); (M.H.); (Y.S.); (M.S.); (S.-F.S.); (D.M.); (H.C.); (J.L.)
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Wen Chu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, No. 2 Xudong 2nd Road, Wuhan 430062, China; (Q.U.Z.); (W.C.); (M.H.); (Y.S.); (M.S.); (S.-F.S.); (D.M.); (H.C.); (J.L.)
| | - Mengyu Hao
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, No. 2 Xudong 2nd Road, Wuhan 430062, China; (Q.U.Z.); (W.C.); (M.H.); (Y.S.); (M.S.); (S.-F.S.); (D.M.); (H.C.); (J.L.)
| | - Yuqin Shi
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, No. 2 Xudong 2nd Road, Wuhan 430062, China; (Q.U.Z.); (W.C.); (M.H.); (Y.S.); (M.S.); (S.-F.S.); (D.M.); (H.C.); (J.L.)
| | - Mengdan Sun
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, No. 2 Xudong 2nd Road, Wuhan 430062, China; (Q.U.Z.); (W.C.); (M.H.); (Y.S.); (M.S.); (S.-F.S.); (D.M.); (H.C.); (J.L.)
| | - Shi-Fei Sang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, No. 2 Xudong 2nd Road, Wuhan 430062, China; (Q.U.Z.); (W.C.); (M.H.); (Y.S.); (M.S.); (S.-F.S.); (D.M.); (H.C.); (J.L.)
| | - Desheng Mei
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, No. 2 Xudong 2nd Road, Wuhan 430062, China; (Q.U.Z.); (W.C.); (M.H.); (Y.S.); (M.S.); (S.-F.S.); (D.M.); (H.C.); (J.L.)
| | - Hongtao Cheng
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, No. 2 Xudong 2nd Road, Wuhan 430062, China; (Q.U.Z.); (W.C.); (M.H.); (Y.S.); (M.S.); (S.-F.S.); (D.M.); (H.C.); (J.L.)
| | - Jia Liu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, No. 2 Xudong 2nd Road, Wuhan 430062, China; (Q.U.Z.); (W.C.); (M.H.); (Y.S.); (M.S.); (S.-F.S.); (D.M.); (H.C.); (J.L.)
| | - Chao Li
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, No. 2 Xudong 2nd Road, Wuhan 430062, China; (Q.U.Z.); (W.C.); (M.H.); (Y.S.); (M.S.); (S.-F.S.); (D.M.); (H.C.); (J.L.)
- Correspondence: (C.L.); (Q.H.)
| | - Qiong Hu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory for Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, No. 2 Xudong 2nd Road, Wuhan 430062, China; (Q.U.Z.); (W.C.); (M.H.); (Y.S.); (M.S.); (S.-F.S.); (D.M.); (H.C.); (J.L.)
- Correspondence: (C.L.); (Q.H.)
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Giunti L, Cetica V, De Gregorio V, Mei D, Barba C, Buccoliero A, Genitori L, Guerrini R, Giglio S, Sardi I, Guidi M, Censullo M. P04.08 The role of SCN1A in glioblastomas and mixed neuronal glial tumors of pediatric age. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
BACKGROUND
Low and high grade gliomas, are the most common pediatric central nervous system (CNS) tumors and they show an extremely broad range of clinical behavior. Pediatric glioma is distinct from its adult counterpart with different genetic/epigenetic profile and biological features. Recently, several studies have shown the involvement of voltage-gated Na+ channels (VGSC) in different types of cancer, including gliomas. VGSC are multimeric transmembrane complexes, responsible for membrane depolarization in excitable cells playing an important role also in cell proliferation, migration, apoptosis and differentiation. VGSC are therapeutic targets in cardiovascular and neurological disorders and, in cancers, they could be a novel target for the development of promising anticancer therapy
MATERIAL AND METHODS
Firstly, we explored the genetic background of 9 pediatric glioblastomas (1–9 pGBMs), through whole-exome sequencing (WES) using HiSeq1000 platform (Illumina) with paired-end approach. On the basis of our results, we extended our study in another group of 16 epileptogenic mixed neuronal-glial tumors of pediatric age, (WHO grade I and II), through an amplicon approach (TSCA) using MiniSeq System platform (Illumina)
RESULTS
We identified variants in SCN1A gene in 3/9 pGBMs: case 3 had c.5782C>G in tumor and blood; case 5 showed c.2278G>T and two mosaic variants (c.5933C>T, 22% and c.4942C>T, 14%); case 6 showed c.667G>T variant only in tumor, and not in other non tumoral tissues (blood, urine and buccal swab). No variants in SCN1A were identified in a group of 16 pediatric mixed gliomas
CONCLUSION
In this study, we explore the genetic background of two groups of pediatric neuroepithelial brain tumors, through Next generation sequencing approach. We identified only in pGBMs variants in SCN1A gene that encoded for VGSCs and is involved in a spectrum of early-onset epileptic encephalopathies. None of our mutated patients showed history of epilepsy. Now, it is not clear the significance of these variants in pGBMs but interestingly, these variants are present in pGBM and not in mixed gliomas. Further studies on a big cohort of patients are needed to establish if they could play a role in pGBMs aggressiveness, migration and progression. Moreover, VGSCs could be a pharmacological target in pGBMs treatment
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Affiliation(s)
- L Giunti
- Medical Genetics Unit, Meyer Children Hospital, Firenze, Italy
| | - V Cetica
- Child Neurology Unit, Meyer Children’s University Hospital, Firenze, Italy
| | - V De Gregorio
- Neuro-Oncology Unit, Meyer Children’s University Hospital, Firenze, Italy
| | - D Mei
- Child Neurology Unit, Meyer Children’s University Hospital, Firenze, Italy
| | - C Barba
- Child Neurology Unit, Meyer Children’s University Hospital, Firenze, Italy
| | - A Buccoliero
- Pathology Unit Meyer Children’s University Hospital, Firenze, Italy
| | - L Genitori
- Neurosurgery Unit, Meyer Children’s University Hospital, Firenze, Italy
| | - R Guerrini
- Child Neurology Unit, Meyer Children’s University Hospital, Firenze, Italy
| | - S Giglio
- Medical Genetics Unit, Meyer Children Hospital, Firenze, Italy
| | - I Sardi
- Neuro-Oncology Unit, Meyer Children’s University Hospital, Firenze, Italy
| | - M Guidi
- Medical Genetics Unit, Meyer Children Hospital, Firenze, Italy
| | - M Censullo
- Medical Genetics Unit, Meyer Children Hospital, Firenze, Italy
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Bai JF, Mei D, Han HX, Zhang S, Feng R, Li JT, Wang T, Zhang CL, Ning SY, Liu H. [The prognosis value of comprehensive geriatric assessment in elder patients with acute myeloid leukemia in a single center]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:200-203. [PMID: 30929386 PMCID: PMC7342533 DOI: 10.3760/cma.j.issn.0253-2727.2019.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
目的 评价综合老年学评估(CGA)在老年急性髓系白血病(AML)患者中预后价值。 方法 纳入73例北京医院诊断的年龄≥ 60岁的AML患者,CGA评估选取日常活动功能量表、工具性日常活动功能量表以及改良老年疾病累计评分表。以评分量表及患者年龄为标准,将患者分为适合、不适合以及脆弱组。 结果 73例患者中男46例,女27例,中位年龄75(60~89)岁。适合组37例(50.1%),不适合组14例(19.2%),脆弱组22例(30.7%),三组分别有33例(89.2%)、8例(57.1%)、10例(45.5%)患者接受化疗(标准化疗或去甲基化治疗),三组患者总反应率分别为68.7%、62.5%、75.0%(χ2=0.615,P=0.769)。适合组、不适合组、脆弱组的早期死亡率(8周死亡率)分别为5.4%、7.1%、27.3%(P<0.05),1年预计总生存率分别为64.9%、28.6%、22.7%(P<0.05)。单因素生存分析显示CGA评分、年龄、ECOG评分、WHO分型(2016)均是影响AML患者生存时间的因素(P<0.05)。 结论 CGA可预测老年AML患者的早期死亡率及远期生存。
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Affiliation(s)
- J F Bai
- Department of Hematology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
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21
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Zhao B, Mei D, Zhang J, Zou S, Lu H, Xu H, Huang B. The prognostic significance of macroscopic serosal change in subserosal invasion (stage T3) gastric cancer. Ann R Coll Surg Engl 2019; 101:249-255. [PMID: 30602290 DOI: 10.1308/rcsann.2018.0217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND For patients with gastric cancer intraoperative macroscopic serosal change is not always consistent with pathological T stage. We investigated whether macroscopic serosal change is associated with unfavourable prognosis of patients with gastric cancer. METHODS We reviewed 856 patients with stage T3 gastric cancer who underwent curative gastrectomy in our institution. All patients were classified as serosa negative and serosa positive according to the macroscopic serosal change during the operation. The prognostic difference between two groups was compared and clinicopathologic features were analysed. RESULTS The percentage of macroscopic serosal change accounted for 55.7% of all patients. Compared with normal serosal surface, the patients with macroscopic serosal change had larger tumour size, more extensive stomach involvement and more advanced stage N. The prognosis of stage T3 with macroscopic serosal change was significantly poorer than that of those with normal serosal surface, especially for those with stages T3N0 and T3N1. Multivariate analysis identified macroscopic serosal change as an independent factor associated with unfavourable prognosis of stage T3 cancer. CONCLUSION Although the depth of tumour invasion mainly depends on pathological evaluation after surgery, the prognostic significance of intraoperative macroscopic serosal change should not be ignored for those patients with subserosal invasion.
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Affiliation(s)
- B Zhao
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University , Shenyang , China
| | - D Mei
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University , Shenyang , China
| | - J Zhang
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University , Shenyang , China
| | - S Zou
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University , Shenyang , China
| | - Hn Lu
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University , Shenyang , China
| | - H Xu
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University , Shenyang , China
| | - B Huang
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University , Shenyang , China
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22
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Wang H, Zaman QU, Huang W, Mei D, Liu J, Wang W, Ding B, Hao M, Fu L, Cheng H, Hu Q. QTL and Candidate Gene Identification for Silique Length Based on High-Dense Genetic Map in Brassica napus L. Front Plant Sci 2019; 10:1579. [PMID: 31850044 PMCID: PMC6895753 DOI: 10.3389/fpls.2019.01579] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/12/2019] [Indexed: 05/13/2023]
Abstract
Silique length (SL) is an important yield trait and positively correlates with seeds per silique and seed weight. In the present study, two double haploid (DH) populations, established from crosses Zhongshuang11 × R11 (ZR) and R1 × R2 (RR), containing 280 and 95 DH lines, respectively, were used to map quantitative trait loci (QTL) for SL. A high-dense genetic map from ZR population was constructed comprising 14,658 bins on 19 linkage groups, with map length of 2,198.85 cM and an average marker distance of 0.15 cM. Genetic linkage map from RR population was constructed by using 2,046 mapped markers anchored to 19 chromosomes with 2,217-cM map length and an average marker distance of 1.08 cM. Major QTL qSL_ZR_A09 and qSL_RR_A09b on A09 were identified from ZR and RR populations, respectively. Both QTL could be stably detected in four environments. QTL qSL_RR_A09b and qSL_ZR_A09 were located on 68.5-70.8 cM and 91.33-91.94 cM interval with R2 values of 14.99-39.07% and 15.00-20.36% in RR and ZR populations, respectively. Based on the physical positions of single nucleotide polymorphism (SNP) markers flanking qSL_ZR_A09 and gene annotation in Arabidopsis, 26 genes were identified with SNP/Indel variation between parents and two genes (BnaA09g41180D and BnaA09g41380D) were selected as the candidate genes. Expression analysis further revealed BnaA09g41180D, encoding homologs of Arabidopsis fasciclin-like arabinogalactan proteins (FLA3), as the most promising candidate gene for qSL_ZR_A09. The QTL identification and candidate gene analysis will provide new insight into the genomic regions controlling SL in Brassica napus as well as candidate genes underlying the QTL.
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Affiliation(s)
- Hui Wang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Qamar U. Zaman
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
- Graduate School of the Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wenhui Huang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Desheng Mei
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Jia Liu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Wenxiang Wang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Bingli Ding
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Mengyu Hao
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Li Fu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Hongtao Cheng
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
- *Correspondence: Hongtao Cheng ; Qiong Hu
| | - Qiong Hu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
- *Correspondence: Hongtao Cheng ; Qiong Hu
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23
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Ding B, Hao M, Mei D, Zaman QU, Sang S, Wang H, Wang W, Fu L, Cheng H, Hu Q. Transcriptome and Hormone Comparison of Three Cytoplasmic Male Sterile Systems in Brassica napus. Int J Mol Sci 2018; 19:ijms19124022. [PMID: 30545163 PMCID: PMC6321506 DOI: 10.3390/ijms19124022] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/07/2018] [Accepted: 12/11/2018] [Indexed: 12/12/2022] Open
Abstract
The interaction between plant mitochondria and the nucleus markedly influences stress responses and morphological features, including growth and development. An important example of this interaction is cytoplasmic male sterility (CMS), which results in plants producing non-functional pollen. In current research work, we compared the phenotypic differences in floral buds of different Brassica napus CMS (Polima, Ogura, Nsa) lines with their corresponding maintainer lines. By comparing anther developmental stages between CMS and maintainer lines, we identified that in the Nsa CMS line abnormality occurred at the tetrad stage of pollen development. Phytohormone assays demonstrated that IAA content decreased in sterile lines as compared to maintainer lines, while the total hormone content was increased two-fold in the S2 stage compared with the S1 stage. ABA content was higher in the S1 stage and exhibited a two-fold decreasing trend in S2 stage. Sterile lines however, had increased ABA content at both stages compared with the corresponding maintainer lines. Through transcriptome sequencing, we compared differentially expressed unigenes in sterile and maintainer lines at both (S1 and S2) developmental stages. We also explored the co-expressed genes of the three sterile lines in the two stages and classified these genes by gene function. By analyzing transcriptome data and validating by RT-PCR, it was shown that some transcription factors (TFs) and hormone-related genes were weakly or not expressed in the sterile lines. This research work provides preliminary identification of the pollen abortion stage in Nsa CMS line. Our focus on genes specifically expressed in sterile lines may be useful to understand the regulation of CMS.
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Affiliation(s)
- Bingli Ding
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Mengyu Hao
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Desheng Mei
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Qamar U Zaman
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Shifei Sang
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Hui Wang
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Wenxiang Wang
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Li Fu
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Hongtao Cheng
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Qiong Hu
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
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Liu H, Gao M, Mei D, Han HX, Li JT, Bai JF, Zhang CL, Feng R, Wei JP, Tian Y, Wang T. [A comparative study of comprehensive geriatric assessment in elder patients with non-Hodgkin's lymphoma]. Zhonghua Nei Ke Za Zhi 2018; 57:330-334. [PMID: 29747287 DOI: 10.3760/cma.j.issn.0578-1426.2018.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To measure the comprehensive geriatric assessment (CGA) in elder non-Hodgkin's Lymphoma (NHL) patients in a cross-sectional study; to compare the differences between Eastern Cooperative Oncology Group (ECOG)-performance status (PS) and CGA. Methods: CGA stratification included the following 3 instrument assessments: activity of daily living (ADL);instrumental activity of daily living (IADL);comorbidity score according to the modified cumulative illness rating score for geriatrics (MCIRS-G). According to CGA and age, NHL patients, aged ≥60 years, were classified as"fit","unfit"and"frail"groups. ECOG-PS was evaluated and compared with CGA. Results: According to CGA, 51.6% senior NHL patients (33 cases) were classified as"fit", 12.5%(8 cases) as"unfit"and 35.9%(23 cases) as"frail". Several comorbidities were observed in majority patients, such as cardiovascular disease, diabetes mellitus and hypertension. In the"younger aged"patients between 60 to 64ys, 25%(3/12) was considered as"frail". However, this proportion increased to 42.9%(6/14) in patients older than 80ys. Moreover, impaired CGA was observed in 38.9%(21/54) of ECOG-PS ≤1 patient. Conclusions: Impaired CGA is as common as approximately half in elderly NHL patients and more than one third even in ECOG-PS ≤1 patients. ECOG-PS may underestimate the impaired fitness function in elder NHL patients.
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Affiliation(s)
- H Liu
- Department of Hematology, Beijing Hospital, Beijing 100730, China
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25
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Li C, Hao M, Wang W, Wang H, Chen F, Chu W, Zhang B, Mei D, Cheng H, Hu Q. An Efficient CRISPR/Cas9 Platform for Rapidly Generating Simultaneous Mutagenesis of Multiple Gene Homoeologs in Allotetraploid Oilseed Rape. Front Plant Sci 2018; 9:442. [PMID: 29731757 PMCID: PMC5920024 DOI: 10.3389/fpls.2018.00442] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 03/21/2018] [Indexed: 05/20/2023]
Abstract
With the rapid development of sequence specific nucleases (SSNs) for genome targeting, clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9 (CRISPR/Cas9) is now considered the most promising method for functional genetic researches, as well as genetic improvement in crop plants. However, the gene redundancy feature within the allotetraploid rapeseed genome is one of the major obstacles for simultaneous modification of different homologs in the first generation. In addition, large scale screening to identify mutated transgenic plants is very time-and labor-consuming using the conventional restriction enzyme-based approaches. In this study, a streamlined rapeseed CRISPR-Cas9 genome editing platform was developed through synthesizing a premade U6-26 driven sgRNA expression cassette and optimizing polyacrylamide gel electrophoresis (PAGE)-based screening approach. In our experiment, a sgRNA was constructed to target five rapeseed SPL3 homologous gene copies, BnSPL3-A5/BnSPL3-A4/BnSPL3-C3/BnSPL3-C4/BnSPL3-Cnn. High-throughput sequencing analysis demonstrated that the editing frequency of CRISPR/Cas9-induced mutagenesis ranged from 96.8 to 100.0% in plants with obvious heteroduplexed PAGE bands, otherwise this proportion was only 0.00-60.8%. Consistent with those molecular analyses, Bnspl3 mutants exhibited developmental delay phenotype in the first generation. In summary, our data suggest that this set of CRISPR/Cas9 platform is qualified for rapidly generating and identifying simultaneous mutagenesis of multiple gene homologs in allotetraploid rapeseed.
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Affiliation(s)
- Chao Li
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, China
| | - Mengyu Hao
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, China
| | - Wenxiang Wang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, China
| | - Hui Wang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, China
| | - Fan Chen
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, China
| | - Wen Chu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, China
| | - Baohong Zhang
- Department of Biology, East Carolina University, Greenville, NC, United States
| | - Desheng Mei
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, China
| | - Hongtao Cheng
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, China
- Hongtao Cheng
| | - Qiong Hu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, China
- *Correspondence: Qiong Hu
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26
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Sun F, Fan G, Hu Q, Zhou Y, Guan M, Tong C, Li J, Du D, Qi C, Jiang L, Liu W, Huang S, Chen W, Yu J, Mei D, Meng J, Zeng P, Shi J, Liu K, Wang X, Wang X, Long Y, Liang X, Hu Z, Huang G, Dong C, Zhang H, Li J, Zhang Y, Li L, Shi C, Wang J, Lee SMY, Guan C, Xu X, Liu S, Liu X, Chalhoub B, Hua W, Wang H. The high-quality genome of Brassica napus cultivar 'ZS11' reveals the introgression history in semi-winter morphotype. Plant J 2017; 92:452-468. [PMID: 28849613 DOI: 10.1111/tpj.13669] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 08/05/2017] [Accepted: 08/11/2017] [Indexed: 05/04/2023]
Abstract
Allotetraploid oilseed rape (Brassica napus L.) is an agriculturally important crop. Cultivation and breeding of B. napus by humans has resulted in numerous genetically diverse morphotypes with optimized agronomic traits and ecophysiological adaptation. To further understand the genetic basis of diversification and adaptation, we report a draft genome of an Asian semi-winter oilseed rape cultivar 'ZS11' and its comprehensive genomic comparison with the genomes of the winter-type cultivar 'Darmor-bzh' as well as two progenitors. The integrated BAC-to-BAC and whole-genome shotgun sequencing strategies were effective in the assembly of repetitive regions (especially young long terminal repeats) and resulted in a high-quality genome assembly of B. napus 'ZS11'. Within a short evolutionary period (~6700 years ago), semi-winter-type 'ZS11' and the winter-type 'Darmor-bzh' maintained highly genomic collinearity. Even so, certain genetic differences were also detected in two morphotypes. Relative to 'Darmor-bzh', both two subgenomes of 'ZS11' are closely related to its progenitors, and the 'ZS11' genome harbored several specific segmental homoeologous exchanges (HEs). Furthermore, the semi-winter-type 'ZS11' underwent potential genomic introgressions with B. rapa (Ar ). Some of these genetic differences were associated with key agronomic traits. A key gene of A03.FLC3 regulating vernalization-responsive flowering time in 'ZS11' was first experienced HE, and then underwent genomic introgression event with Ar , which potentially has led to genetic differences in controlling vernalization in the semi-winter types. Our observations improved our understanding of the genetic diversity of different B. napus morphotypes and the cultivation history of semi-winter oilseed rape in Asia.
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Affiliation(s)
- Fengming Sun
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Guangyi Fan
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
- BGI-Qingdao, Qingdao, 266555, China
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, Macao, China
| | - Qiong Hu
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Yongming Zhou
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Mei Guan
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Chaobo Tong
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Jiana Li
- College of Agronomy and Biotechnology, Southwest University, BeiBei District, Chongqing, 400715, China
| | - Dezhi Du
- Qinghai Academy of Agricultural and Forestry, National Key Laboratory Breeding Base for Innovation and Utilization of Plateau Crop Germplasm, Xining, 810016, China
| | - Cunkou Qi
- Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Liangcai Jiang
- Shichun Academy of Agricultural Sciences, Chengdu, 610066, China
| | - Weiqing Liu
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Shunmou Huang
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Wenbin Chen
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Jingyin Yu
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Desheng Mei
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Jinling Meng
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Peng Zeng
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Jiaqin Shi
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Kede Liu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xi Wang
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Xinfa Wang
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Yan Long
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xinming Liang
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Zhiyong Hu
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Guodong Huang
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Caihua Dong
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - He Zhang
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Jun Li
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Yaolei Zhang
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Liangwei Li
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Chengcheng Shi
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Jiahao Wang
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Simon Ming-Yuen Lee
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, Macao, China
| | - Chunyun Guan
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Xun Xu
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
| | - Shengyi Liu
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Xin Liu
- Beijing Genome Institute-Shenzhen, Shenzhen, 518083, China
- BGI-Qingdao, Qingdao, 266555, China
| | - Boulos Chalhoub
- Institut National de Recherche Agronomique (INRA), Unité de Recherche en Génomique Végétale (URGV), UMR1165, Organization and Evolution of Plant Genomes (OEPG), 2 rue Gaston Crémieux, 91057, Evry, France
| | - Wei Hua
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Hanzhong Wang
- The Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of the PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
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27
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Cheng H, Hao M, Wang W, Mei D, Wells R, Liu J, Wang H, Sang S, Tang M, Zhou R, Chu W, Fu L, Hu Q. Integrative RNA- and miRNA-Profile Analysis Reveals a Likely Role of BR and Auxin Signaling in Branch Angle Regulation of B. napus. Int J Mol Sci 2017; 18:ijms18050887. [PMID: 28481299 PMCID: PMC5454811 DOI: 10.3390/ijms18050887] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 04/18/2017] [Indexed: 11/16/2022] Open
Abstract
Oilseed rape (Brassica napus L.) is the second largest oilseed crop worldwide and one of the most important oil crops in China. As a component of plant architecture, branch angle plays an important role in yield performance, especially under high-density planting conditions. However, the mechanisms underlying the regulation of branch angle are still largely not understood. Two oilseed rape lines with significantly different branch angles were used to conduct RNA- and miRNA-profiling at two developmental stages, identifying differential expression of a large number of genes involved in auxin- and brassinosteroid (BR)-related pathways. Many auxin response genes, including AUX1, IAA, GH3, and ARF, were enriched in the compact line. However, a number of genes involved in BR signaling transduction and biosynthesis were down-regulated. Differentially expressed miRNAs included those involved in auxin signaling transduction. Expression patterns of most target genes were fine-tuned by related miRNAs, such as miR156, miR172, and miR319. Some miRNAs were found to be differentially expressed at both developmental stages, including three miR827 members. Our results provide insight that auxin- and BR-signaling may play a pivotal role in branch angle regulation.
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Affiliation(s)
- Hongtao Cheng
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Mengyu Hao
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Wenxiang Wang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Desheng Mei
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Rachel Wells
- John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK.
| | - Jia Liu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Hui Wang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Shifei Sang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Min Tang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Rijin Zhou
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Wen Chu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Li Fu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Qiong Hu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
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28
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Zhao B, Li M, Ren C, Liu XY, Mei D. Aggravated nausea and vomiting induced by fat emulsion for hyperemesis gravidarum: A case report. J Clin Pharm Ther 2017; 42:618-620. [PMID: 28474354 DOI: 10.1111/jcpt.12545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 04/03/2017] [Indexed: 11/30/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Total parental nutrition (TPN) for hyperemesis gravidarum (HG) is generally effective and well-tolerated. We report a case of aggravated nausea and vomiting caused by fat emulsion. CASE DESCRIPTION A 40-year-old pregnant woman through IVF was admitted to the hospital at 11-week gestation and diagnosed with HG. During TPN treatment, the patient suffered from aggravated nausea and vomiting. We identified fat emulsion as the most likely culprit using challenge, dechallenge and rechallenge. WHAT IS NEW AND CONCLUSION This is the first report of fat emulsion aggravating nausea and vomiting in such situation.
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Affiliation(s)
- B Zhao
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, China
| | - M Li
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, China.,Department of Pharmacy, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - C Ren
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing, China
| | - X Y Liu
- College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - D Mei
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, China
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Wallen SP, Lee J, Mei D, Chong C, Kevrekidis PG, Boechler N. Discrete breathers in a mass-in-mass chain with Hertzian local resonators. Phys Rev E 2017; 95:022904. [PMID: 28297872 DOI: 10.1103/physreve.95.022904] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Indexed: 11/07/2022]
Abstract
We report on the existence of discrete breathers in a one-dimensional, mass-in-mass chain with linear intersite coupling and nonlinear, precompressed Hertzian local resonators, which is motivated by recent studies of the dynamics of microspheres adhered to elastic substrates. After predicting theoretically the existence of discrete breathers in the continuum and anticontinuum limits of intersite coupling, we use numerical continuation to compute a family of breathers interpolating between the two regimes in a finite chain, where the displacement profiles of the breathers are localized around one lattice site. We then analyze the frequency-amplitude dependence of the breathers by performing numerical continuation on a linear eigenmode (vanishing amplitude) solution of the system near the upper band gap edge. Finally, we use direct numerical integration of the equations of motion to demonstrate the formation and evolution of the identified localized modes in energy-conserving and dissipative scenarios, including within settings that may be relevant to future experimental studies.
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Affiliation(s)
- S P Wallen
- Department of Mechanical Engineering, University of Washington, Seattle, Washington 98195, USA
| | - J Lee
- Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003-4515, USA
| | - D Mei
- Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003-4515, USA
| | - C Chong
- Department of Mathematics, Bowdoin College, Brunswick, Maine 04011, USA
| | - P G Kevrekidis
- Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003-4515, USA
| | - N Boechler
- Department of Mechanical Engineering, University of Washington, Seattle, Washington 98195, USA
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Wang H, Cheng H, Wang W, Liu J, Hao M, Mei D, Zhou R, Fu L, Hu Q. Identification of BnaYUCCA6 as a candidate gene for branch angle in Brassica napus by QTL-seq. Sci Rep 2016; 6:38493. [PMID: 27922076 PMCID: PMC5138835 DOI: 10.1038/srep38493] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 11/11/2016] [Indexed: 11/12/2022] Open
Abstract
Oilseed rape (Brassica napus L.) is one of the most important oil crops in China as well as worldwide. Branch angle as a plant architecture component trait plays an important role for high density planting and yield performance. In this study, bulked segregant analysis (BSA) combined with next generation sequencing technology was used to fine map QTL for branch angle. A major QTL, designated as branch angle 1 (ba1) was identified on A06 and further validated by Indel marker-based classical QTL mapping in an F2 population. Eighty-two genes were identified in the ba1 region. Among these genes, BnaA0639380D is a homolog of AtYUCCA6. Sequence comparison of BnaA0639380D from small- and big-branch angle oilseed rape lines identified six SNPs and four amino acid variation in the promoter and coding region, respectively. The expression level of BnaA0639380D is significantly higher in the small branch angle line Purler than in the big branch angle line Huyou19, suggesting that the genomic mutations may result in reduced activity of BnaA0639380D in Huyou19. Phytohormone determination showed that the IAA content in Purler was also obviously increased. Taken together, our results suggested BnaA0639380D is a possible candidate gene for branch angle in oilseed rape.
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Affiliation(s)
- Hui Wang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, No. 2 Xudong 2nd Road, Wuhan 430062, P.R. China
| | - Hongtao Cheng
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, No. 2 Xudong 2nd Road, Wuhan 430062, P.R. China
| | - Wenxiang Wang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, No. 2 Xudong 2nd Road, Wuhan 430062, P.R. China
| | - Jia Liu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, No. 2 Xudong 2nd Road, Wuhan 430062, P.R. China
| | - Mengyu Hao
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, No. 2 Xudong 2nd Road, Wuhan 430062, P.R. China
| | - Desheng Mei
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, No. 2 Xudong 2nd Road, Wuhan 430062, P.R. China
| | - Rijin Zhou
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, No. 2 Xudong 2nd Road, Wuhan 430062, P.R. China
| | - Li Fu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, No. 2 Xudong 2nd Road, Wuhan 430062, P.R. China
| | - Qiong Hu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, No. 2 Xudong 2nd Road, Wuhan 430062, P.R. China
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Cheng H, Hao M, Wang W, Mei D, Tong C, Wang H, Liu J, Fu L, Hu Q. Genomic identification, characterization and differential expression analysis of SBP-box gene family in Brassica napus. BMC Plant Biol 2016; 16:196. [PMID: 27608922 PMCID: PMC5017063 DOI: 10.1186/s12870-016-0852-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 07/11/2016] [Indexed: 05/08/2023]
Abstract
BACKGROUND SBP-box genes belong to one of the largest families of transcription factors. Though members of this family have been characterized to be important regulators of diverse biological processes, information of SBP-box genes in the third most important oilseed crop Brassica napus is largely undefined. RESULTS In the present study, by whole genome bioinformatics analysis and transcriptional profiling, 58 putative members of SBP-box gene family in oilseed rape (Brassica napus L.) were identified and their expression pattern in different tissues as well as possible interaction with miRNAs were analyzed. In addition, B. napus lines with contrasting branch angle were used for investigating the involvement of SBP-box genes in plant architecture regulation. Detailed gene information, including genomic organization, structural feature, conserved domain and phylogenetic relationship of the genes were systematically characterized. By phylogenetic analysis, BnaSBP proteins were classified into eight distinct groups representing the clear orthologous relationships to their family members in Arabidopsis and rice. Expression analysis in twelve tissues including vegetative and reproductive organs showed different expression patterns among the SBP-box genes and a number of the genes exhibit tissue specific expression, indicating their diverse functions involved in the developmental process. Forty-four SBP-box genes were ascertained to contain the putative miR156 binding site, with 30 and 14 of the genes targeted by miR156 at the coding and 3'UTR region, respectively. Relative expression level of miR156 is varied across tissues. Different expression pattern of some BnaSBP genes and the negative correlation of transcription levels between miR156 and its target BnaSBP gene were observed in lines with different branch angle. CONCLUSIONS Taken together, this study represents the first systematic analysis of the SBP-box gene family in Brassica napus. The data presented here provides base foundation for understanding the crucial roles of BnaSBP genes in plant development and other biological processes.
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Affiliation(s)
- Hongtao Cheng
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture,, No.2 Xudong 2nd Road, Wuhan, 430062 People’s Republic of China
| | - Mengyu Hao
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture,, No.2 Xudong 2nd Road, Wuhan, 430062 People’s Republic of China
| | - Wenxiang Wang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture,, No.2 Xudong 2nd Road, Wuhan, 430062 People’s Republic of China
| | - Desheng Mei
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture,, No.2 Xudong 2nd Road, Wuhan, 430062 People’s Republic of China
| | - Chaobo Tong
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture,, No.2 Xudong 2nd Road, Wuhan, 430062 People’s Republic of China
| | - Hui Wang
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture,, No.2 Xudong 2nd Road, Wuhan, 430062 People’s Republic of China
| | - Jia Liu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture,, No.2 Xudong 2nd Road, Wuhan, 430062 People’s Republic of China
| | - Li Fu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture,, No.2 Xudong 2nd Road, Wuhan, 430062 People’s Republic of China
| | - Qiong Hu
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture,, No.2 Xudong 2nd Road, Wuhan, 430062 People’s Republic of China
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Capuano A, Vollono C, Rubino M, Mei D, Calì C, De Angelis A, Di Trapani G, Servidei S, Della Marca G. Hypnic Headache: Actigraphic and Polysomnographic Study of a Case. Cephalalgia 2016; 25:466-9. [PMID: 15910573 DOI: 10.1111/j.1468-2982.2005.00871.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- A Capuano
- Institute of Neurology, Department of Neurosciences, Catholic University, 8-00168 Rome, Italy
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Liu J, Wang W, Mei D, Wang H, Fu L, Liu D, Li Y, Hu Q. Characterizing Variation of Branch Angle and Genome-Wide Association Mapping in Rapeseed (Brassica napus L.). Front Plant Sci 2016; 7:21. [PMID: 26870051 PMCID: PMC4740498 DOI: 10.3389/fpls.2016.00021] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 01/08/2016] [Indexed: 05/20/2023]
Abstract
Changes in the rapeseed branch angle alter plant architecture, allowing more efficient light capture as planting density increases. In this study, a natural population of rapeseed was grown in three environments and evaluated for branch angle trait to characterize their phenotypic patterns and genotype with a 60K Brassica Infinium SNP array. Significant phenotypic variation was observed from 20 to 70°. As a result, 25 significant quantitative trait loci (QTL) associated with branch angle were identified on chromosomes A2, A3, A7, C3, C5, and C7 by the MLM model in TASSEL 4.0. Orthologs of the functional candidate genes involved in branch angle were identified. Among the key QTL, the peak SNPs were close to the key orthologous genes BnaA.Lazy1 and BnaC.Lazy1 on A3 and C3 homologous genome blocks. With the exception of Lazy (LA) orthologous genes, SQUMOSA PROMOTER BINDING PROTEIN LIKE 14 (SPL14) and an auxin-responsive GRETCHEN HAGEN 3 (GH3) genes from Arabidopsis thaliana were identified close to two clusters of SNPs on the A7 and C7 chromosomes. These findings on multiple novel loci and candidate genes of branch angle will be useful for further understanding and genetic improvement of plant architecture in rapeseed.
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Affiliation(s)
- Jia Liu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Wenxiang Wang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Desheng Mei
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Hui Wang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Li Fu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Daoming Liu
- Agricultural Sciences Institute of Lu'an MunicipalLu'an, China
| | - Yunchang Li
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Qiong Hu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
- *Correspondence: Qiong Hu
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Li X, Mei D, Liu Q, Fan J, Singh S, Green A, Zhou XR, Zhu LH. Down-regulation of crambe fatty acid desaturase and elongase in Arabidopsis and crambe resulted in significantly increased oleic acid content in seed oil. Plant Biotechnol J 2016; 14:323-31. [PMID: 25998013 DOI: 10.1111/pbi.12386] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 03/21/2015] [Accepted: 03/24/2015] [Indexed: 05/21/2023]
Abstract
High oleic oil is an important industrial feedstock that has been one of the main targets for oil improvement in a number of oil crops. Crambe (Crambe abyssinica) is a dedicated oilseed crop, suitable for industrial oil production. In this study, we down-regulated the crambe fatty acid desaturase (FAD) and fatty acid elongase (FAE) genes for creating high oleic seed oil. We first cloned the crambe CaFAD2, CaFAD3 and CaFAE1 genes. Multiple copies of each of these genes were isolated, and the highly homologous sequences were used to make RNAi constructs. These constructs were first tested in Arabidopsis, which led to the elevated oleic or linoleic levels depending on the genes targeted, indicating that the RNAi constructs were effective in regulating the expression of the target genes in nonidentical but closely related species. Furthermore, down-regulation of CaFAD2 and CaFAE1 in crambe with the FAD2-FAE1 RNAi vector resulted in even more significant increase in oleic acid level in the seed oil with up to 80% compared to 13% for wild type. The high oleic trait has been stable in subsequent five generations and the GM line grew normally in greenhouse. This work has demonstrated the great potential of producing high oleic oil in crambe, thus contributing to its development into an oil crop platform for industrial oil production.
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Affiliation(s)
- Xueyuan Li
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, Sweden
| | - Desheng Mei
- CSIRO Food, Nutrition & Bioproducts Flagship, Canberra, ACT, Australia
- Institute of Oil Crops, Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Qing Liu
- CSIRO Food, Nutrition & Bioproducts Flagship, Canberra, ACT, Australia
- CSIRO Agriculture Flagship, Canberra, ACT, Australia
| | - Jing Fan
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, Sweden
| | - Surinder Singh
- CSIRO Food, Nutrition & Bioproducts Flagship, Canberra, ACT, Australia
- CSIRO Agriculture Flagship, Canberra, ACT, Australia
| | - Allan Green
- CSIRO Food, Nutrition & Bioproducts Flagship, Canberra, ACT, Australia
| | - Xue-Rong Zhou
- CSIRO Food, Nutrition & Bioproducts Flagship, Canberra, ACT, Australia
- CSIRO Agriculture Flagship, Canberra, ACT, Australia
| | - Li-Hua Zhu
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, Sweden
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Liu J, Wang J, Wang H, Wang W, Zhou R, Mei D, Cheng H, Yang J, Raman H, Hu Q. Multigenic Control of Pod Shattering Resistance in Chinese Rapeseed Germplasm Revealed by Genome-Wide Association and Linkage Analyses. Front Plant Sci 2016; 7:1058. [PMID: 27493651 PMCID: PMC4954820 DOI: 10.3389/fpls.2016.01058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 07/06/2016] [Indexed: 05/03/2023]
Abstract
The majority of rapeseed cultivars shatter seeds upon maturity especially under hot-dry and windy conditions, reducing yield and gross margin return to growers. Here, we identified quantitative trait loci (QTL) for resistance to pod shatter in an unstructured diverse panel of 143 rapeseed accessions, and two structured populations derived from bi-parental doubled haploid (DH) and inter-mated (IF2) crosses derived from R1 (resistant to pod shattering) and R2 (prone to pod shattering) accessions. Genome-wide association analysis identified six significant QTL for resistance to pod shatter located on chromosomes A01, A06, A07, A09, C02, and C05. Two of the QTL, qSRI.A09 delimited with the SNP marker Bn-A09-p30171993 (A09) and qSRI.A06 delimited with the SNP marker Bn-A06-p115948 (A06) could be repeatedly detected across environments in a diversity panel, DH and IF2 populations, suggesting that at least two loci on chromosomes A06 and A09 were the main contributors to pod shatter resistance in Chinese germplasm. Significant SNP markers identified in this study especially those that appeared repeatedly across environments provide a cost-effective and an efficient method for introgression and pyramiding of favorable alleles for pod shatter resistance via marker-assisted selection in rapeseed improvement programs.
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Affiliation(s)
- Jia Liu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Jun Wang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
- Graduate School of Chinese Academy of Agricultural SciencesBeijing, China
| | - Hui Wang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Wenxiang Wang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Rijin Zhou
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Desheng Mei
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Hongtao Cheng
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Juan Yang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
| | - Harsh Raman
- Graham Centre for Agricultural Innovation (an Alliance between NSW Department of Primary Industries and Charles Sturt University), Wagga Wagga Agricultural InstituteWagga Wagga, NSW, Australia
- *Correspondence: Harsh Raman
| | - Qiong Hu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan, China
- Qiong Hu
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Conti V, Pantaleo M, Barba C, Baroni G, Mei D, Buccoliero AM, Giglio S, Giordano F, Baek ST, Gleeson JG, Guerrini R. Focal dysplasia of the cerebral cortex and infantile spasms associated with somatic 1q21.1-q44 duplication including the AKT3 gene. Clin Genet 2014; 88:241-7. [PMID: 25091978 DOI: 10.1111/cge.12476] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 07/15/2014] [Accepted: 07/30/2014] [Indexed: 02/01/2023]
Abstract
Somatic and germline duplications or activating mutations of AKT3 have been reported in patients with hemimegalencephaly and megalencephaly. We performed array comparative genomic hybridization on brain tissue and blood in 16 consecutive patients with symptomatic epilepsy due to focal or multilobar malformations of cortical development who underwent surgical treatment of epilepsy. One patient with infantile spasms and a dysplastic left frontal lobe harboured a somatic trisomy of the 1q21.1-q44 chromosomal region, encompassing the AKT3 gene, in the dysplastic brain tissue but not in blood and saliva. Histopathology revealed severe cortical dyslamination, a thin cortex in the premotor area with microgyri and microsulci, immature neurons with disoriented dendrites and areas of cortical heterotopia in the sub-cortical white matter. These cytoarchitectural changes are close to those defining type Ib focal cortical dysplasia. Immunohistochemistry in brain specimens showed hyperactivation of the PI3K/AKT/mTOR pathway. These findings indicate that AKT3 upregulation may cause focal malformations of cortical development. There appears to be an etiologic continuum between hemimegalencephaly and focal cortical dysplastic lesions. The extent of brain malformations due to AKT3 upregulation may be related to the embryonic stage when the post-zygotic gene alteration occurs.
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Affiliation(s)
- V Conti
- Pediatric Neurology and Neurogenetics Unit and Laboratories, A. Meyer Children's Hospital - University of Florence, Florence, Italy
| | - M Pantaleo
- Medical Genetics Unit, A. Meyer Children's Hospital - University of Florence, Florence, Italy
| | - C Barba
- Pediatric Neurology and Neurogenetics Unit and Laboratories, A. Meyer Children's Hospital - University of Florence, Florence, Italy
| | - G Baroni
- Department of Critical Care Medicine and Surgery, University of Florence, Florence, Italy
| | - D Mei
- Pediatric Neurology and Neurogenetics Unit and Laboratories, A. Meyer Children's Hospital - University of Florence, Florence, Italy
| | - A M Buccoliero
- Pathology Unit, A. Meyer Children's Hospital, Florence, Italy
| | - S Giglio
- Medical Genetics Unit, A. Meyer Children's Hospital - University of Florence, Florence, Italy
| | - F Giordano
- Division of Neurosurgery, A. Meyer Children's Hospital, Florence, Italy
| | - S T Baek
- Department of Neurosciences, Howard Hughes Medical Institute, University of California San Diego, La Jolla, CA, USA
| | - J G Gleeson
- Department of Neurosciences, Howard Hughes Medical Institute, University of California San Diego, La Jolla, CA, USA
| | - R Guerrini
- Pediatric Neurology and Neurogenetics Unit and Laboratories, A. Meyer Children's Hospital - University of Florence, Florence, Italy.,Epilepsy and Clinical Neurophysiology Laboratory, IRCCS Stella Maris Foundation, Calambrone, Pisa, Italy
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Abstract
Sinapis arvensis is a weed with strong biological activity. Despite being a problematic annual weed that contaminates agricultural crop yield, it is a valuable alien germplasm resource. It can be utilized for broadening the genetic background of Brassica crops with desirable agricultural traits like resistance to blackleg (Leptosphaeria maculans), stem rot (Sclerotinia sclerotium) and pod shatter (caused by FRUITFULL gene). However, few genetic studies of S. arvensis were reported because of the lack of genomic resources. In the present study, we performed de novo transcriptome sequencing to produce a comprehensive dataset for S. arvensis for the first time. We used Illumina paired-end sequencing technology to sequence the S. arvensis flower transcriptome and generated 40,981,443 reads that were assembled into 131,278 transcripts. We de novo assembled 96,562 high quality unigenes with an average length of 832 bp. A total of 33,662 full-length ORF complete sequences were identified, and 41,415 unigenes were mapped onto 128 pathways using the KEGG Pathway database. The annotated unigenes were compared against Brassica rapa, B. oleracea, B. napus and Arabidopsis thaliana. Among these unigenes, 76,324 were identified as putative homologs of annotated sequences in the public protein databases, of which 1194 were associated with plant hormone signal transduction and 113 were related to gibberellin homeostasis/signaling. Unigenes that did not match any of those sequence datasets were considered to be unique to S. arvensis. Furthermore, 21,321 simple sequence repeats were found. Our study will enhance the currently available resources for Brassicaceae and will provide a platform for future genomic studies for genetic improvement of Brassica crops.
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Affiliation(s)
- Jia Liu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, Hubei, People’s Republic of China
| | - Desheng Mei
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, Hubei, People’s Republic of China
| | - Yunchang Li
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, Hubei, People’s Republic of China
| | - Shunmou Huang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, Hubei, People’s Republic of China
| | - Qiong Hu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, Hubei, People’s Republic of China
- * E-mail:
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Righini A, Frassoni C, Inverardi F, Parazzini C, Mei D, Doneda C, Re TJ, Zucca I, Guerrini R, Spreafico R, Triulzi F. Bilateral cavitations of ganglionic eminence: a fetal MR imaging sign of halted brain development. AJNR Am J Neuroradiol 2013; 34:1841-5. [PMID: 23598830 DOI: 10.3174/ajnr.a3508] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
SUMMARY Ganglionic eminence is the main transitory proliferative structure of the ventral telencephalon in human fetal brain and it contributes for at least 35% to the population of cortical interneurons; however data on the human GE anomalies are scarce. We report 5 fetal MR imaging observations with bilateral symmetric cavitations in their GE regions resembling an inverted open C shape and separating the GE itself form the deeper parenchyma. Imaging, neuropathology, and follow-up features suggested a malformative origin. All cases had in common characteristics of lissencephaly with agenesis or severe hypoplasia of corpus callosum of probable different genetic basis. From our preliminary observation, it seems that GE cavitations are part of conditions which are also accompanied by severe cerebral structure derangement.
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Affiliation(s)
- A Righini
- Radiology and Neuroradiology Department, Children's Hospital V. Buzzi, Milan, Italy
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Chen F, Wang Y, Ai J, Zhan Z, Lv Y, Liang Z, Luo C, Mei D, Geng M, Duan W. O-Linked Triazolotriazines: Potent and Selective c-Met Inhibitors. ChemMedChem 2012; 7:1276-85. [DOI: 10.1002/cmdc.201200145] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 04/14/2012] [Indexed: 01/05/2023]
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Clapham KR, Yu TW, Ganesh VS, Barry B, Chan Y, Mei D, Parrini E, Funalot B, Dupuis L, Nezarati MM, du Souich C, van Karnebeek C, Guerrini R, Walsh CA. FLNA genomic rearrangements cause periventricular nodular heterotopia. Neurology 2012; 78:269-78. [PMID: 22238415 DOI: 10.1212/wnl.0b013e31824365e4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To identify copy number variant (CNV) causes of periventricular nodular heterotopia (PNH) in patients for whom FLNA sequencing is negative. METHODS Screening of 35 patients from 33 pedigrees on an Affymetrix 6.0 microarray led to the identification of one individual bearing a CNV that disrupted FLNA. FLNA-disrupting CNVs were also isolated in 2 other individuals by multiplex ligation probe amplification. These 3 cases were further characterized by high-resolution oligo array comparative genomic hybridization (CGH), and the precise junctional breakpoints of the rearrangements were identified by PCR amplification and sequencing. RESULTS We report 3 cases of PNH caused by nonrecurrent genomic rearrangements that disrupt one copy of FLNA. The first individual carried a 113-kb deletion that removes all but the first exon of FLNA. A second patient harbored a complex rearrangement including a deletion of the 3' end of FLNA accompanied by a partial duplication event. A third patient bore a 39-kb deletion encompassing all of FLNA and the neighboring gene EMD. High-resolution oligo array CGH of the FLNA locus suggests distinct molecular mechanisms for each of these rearrangements, and implicates nearby low copy repeats in their pathogenesis. CONCLUSIONS These results demonstrate that FLNA is prone to pathogenic rearrangements, and highlight the importance of screening for CNVs in individuals with PNH lacking FLNA point mutations.
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Affiliation(s)
- K R Clapham
- Harvard-MIT Division of Health Sciences and Technology, Boston, MA, USA
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Marini C, Mei D, Parmeggiani L, Norci V, Calado E, Ferrari A, Moreira A, Pisano T, Specchio N, Vigevano F, Battaglia D, Guerrini R. Protocadherin 19 mutations in girls with infantile-onset epilepsy. Neurology 2010; 75:646-53. [PMID: 20713952 DOI: 10.1212/wnl.0b013e3181ed9e67] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To explore the causative role of PCDH19 gene (Xq22) in female patients with epilepsy. METHODS We studied a cohort of 117 female patients with febrile seizures (FS) and a wide spectrum of epilepsy phenotypes including focal and generalized forms with either sporadic or familial distribution. RESULTS PCDH19 screening showed point mutations in 13 probands (11%). Mean age at seizure onset was 8.5 months; 8 patients (62%) presented with FS, 4 (33%) with cluster of focal seizures, and 1 with de novo status epilepticus (SE). Subsequent seizure types included afebrile tonic-clonic, febrile, and afebrile SE, absences, myoclonic, and focal seizures. Seven patients (54%) had a clinical diagnosis consistent with Dravet syndrome (DS); 6 (46%) had focal epilepsy. In most patients, seizures were particularly frequent at onset, manifesting in clusters and becoming less frequent with age. Mental retardation was present in 11 patients, ranging from mild (7; 64%) to moderate (1; 9%) to severe (3; 27%). Five patients (38%) had autistic features in association to mental retardation. Mutations were missense (6), truncating (2), frameshift (3), and splicing (2). Eleven were new mutations. Mutations were inherited in 3 probands (25%): 2 from apparently unaffected fathers and 1 from a mother who had had generalized epilepsy. CONCLUSIONS PCDH19 is emerging as a major gene for infantile-onset familial or sporadic epilepsy in female patients with or without mental retardation. In our cohort, epileptic encephalopathy with DS-like features and focal epilepsy of variable severity were the associated phenotypes and were equally represented.
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Affiliation(s)
- C Marini
- Child Neurology Unit, Children's Hospital A. Meyer, Viale Pieraccini 24, 50139 Firenze, Italy
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Wei W, Li Y, Wang L, Liu S, Yan X, Mei D, Li Y, Xu Y, Peng P, Hu Q. Development of a novel Sinapis arvensis disomic addition line in Brassica napus containing the restorer gene for Nsa CMS and improved resistance to Sclerotinia sclerotiorum and pod shattering. Theor Appl Genet 2010; 120:1089-97. [PMID: 20033391 DOI: 10.1007/s00122-009-1236-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2008] [Accepted: 11/30/2009] [Indexed: 05/10/2023]
Abstract
An allo-cytoplasmic male sterile line, which was developed through somatic hybridization between Brassica napus and Sinapis arvensis (thus designated as Nsa CMS line), possesses high potential for hybrid production of rapeseed. In order to select for restorer lines, fertile plants derived from the same somatic hybridization combination were self-pollinated and testcrossed with the parental Nsa CMS line for six generations. A novel disomic alien addition line, B. napus-S. arvensis, has been successfully developed. GISH analysis showed that it contains one pair of chromosomes from S. arvensis and 19 pairs from B. napus, and retains stable and regular mitotic and meiotic processes. The addition line displays very strong restoration ability to Nsa CMS line, high resistance to Sclerotinia sclerotiorum and a low incidence of pod shattering. Because the addition line shares these very important agricultural characters, it is a valuable restorer to Nsa CMS line, and is named NR1 here (Nsa restorer no. 1).
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Affiliation(s)
- Wenhui Wei
- Key Laboratory for Biological Sciences of Oil Crops, National Center for Oil Crops Improvement, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, 430062, Wuhan, People's Republic of China.
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43
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Kwak JH, Hu J, Mei D, Yi CW, Kim DH, Peden CHF, Allard LF, Szanyi J. Coordinatively Unsaturated Al3+ Centers as Binding Sites for Active Catalyst Phases of Platinum on -Al2O3. Science 2009; 325:1670-3. [DOI: 10.1126/science.1176745] [Citation(s) in RCA: 634] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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44
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Mei D, Lewis R, Parrini E, Lazarou LP, Marini C, Pilz DT, Guerrini R. High frequency of genomic deletions--and a duplication--in the LIS1 gene in lissencephaly: implications for molecular diagnosis. J Med Genet 2008; 45:355-61. [DOI: 10.1136/jmg.2007.056507] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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45
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Mei D, Parrini E, Pasqualetti M, Tortorella G, Franzoni E, Giussani U, Marini C, Migliarini S, Guerrini R. Multiplex ligation-dependent probe amplification detects DCX gene deletions in band heterotopia. Neurology 2007; 68:446-50. [PMID: 17283321 DOI: 10.1212/01.wnl.0000252945.75668.5d] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Subcortical band heterotopia (SBH, or double cortex syndrome) is a neuronal migration disorder consisting of heterotopic bands of gray matter located between the cortex and the ventricular surface, with or without concomitant pachygyria. Most cases show diffuse or anteriorly predominant (A>P) migration abnormality. All familial and 53% to 84% of sporadic cases with diffuse or A>P SBH harbor a mutation of the DCX gene, leaving the genetic causes unexplained, and genetic counseling problematic, in the remaining patients. Our purpose was to verify the extent to which exonic deletions or duplications of the DCX gene would account for sporadic SBH with A>P gradient but normal gene sequencing. METHODS We identified 23 patients (22 women, 1 man) with sporadic, diffuse, or anteriorly predominant SBH. After sequencing the DCX gene and finding mutations in 12 (11 women, 1 man), we used multiplex ligation-dependent probe amplification (MLPA) to search for whole-exon deletions or duplications in the 11 remaining women. We used semiquantitative fluorescent multiplex PCR (SQF-PCR) and Southern blot to confirm MLPA findings. RESULTS MLPA assay uncovered two deletions encompassing exons 3 to 5, and one involving exon 6, in 3 of 11 women (27%) and raised the percentage of DCX mutations from 52% to 65% in our series. SQF-PCR performed in all three women and Southern blot analysis performed in two confirmed the deletions. CONCLUSIONS MLPA uncovers large genomic deletions of the DCX gene in a subset of patients with SBH in whom no mutations are found after gene sequencing. Deletions of DCX are an underascertained cause of SBH.
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Affiliation(s)
- D Mei
- Pediatric Neurology Unit and Laboratories, Children's Hospital A. Meyer-University of Florence, via Luca Giordano 13, 50123, Florence, Italy
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Parrini E, Ramazzotti A, Dobyns WB, Mei D, Moro F, Veggiotti P, Marini C, Brilstra EH, Dalla Bernardina B, Goodwin L, Bodell A, Jones MC, Nangeroni M, Palmeri S, Said E, Sander JW, Striano P, Takahashi Y, Van Maldergem L, Leonardi G, Wright M, Walsh CA, Guerrini R. Periventricular heterotopia: phenotypic heterogeneity and correlation with Filamin A mutations. Brain 2006; 129:1892-906. [PMID: 16684786 DOI: 10.1093/brain/awl125] [Citation(s) in RCA: 232] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Periventricular heterotopia (PH) occurs when collections of neurons lay along the lateral ventricles or just beneath. Human Filamin A gene (FLNA) mutations are associated with classical X-linked bilateral periventricular nodular heterotopia (PNH), featuring contiguous heterotopic nodules, mega cisterna magna, cardiovascular malformations and epilepsy. FLNA encodes an F-actin-binding cytoplasmic phosphoprotein and is involved in early brain neurogenesis and neuronal migration. A rare, recessive form of bilateral PNH with microcephaly and severe delay is associated with mutations of the ADP-ribosylation factor guanine nucleotide-exchange factor-2 (ARFGEF2) gene, required for vesicle and membrane trafficking from the trans-Golgi. However, PH is a heterogeneous disorder. We studied clinical and brain MRI of 182 patients with PH and, based on its anatomic distribution and associated birth defects, identified 15 subtypes. Classical bilateral PNH represented the largest group (98 patients: 54%). The 14 additional phenotypes (84 patients: 46%) included PNH with Ehlers-Danlos syndrome (EDS), temporo-occipital PNH with hippocampal malformation and cerebellar hypoplasia, PNH with fronto-perisylvian or temporo-occipital polymicrogyria, posterior PNH with hydrocephalus, PNH with microcephaly, PNH with frontonasal dysplasia, PNH with limb abnormalities, PNH with fragile-X syndrome, PNH with ambiguous genitalia, micronodular PH, unilateral PNH, laminar ribbon-like and linear PH. We performed mutation analysis of FLNA in 120 patients, of whom 72 (60%) had classical bilateral PNH and 48 (40%) other PH phenotypes, and identified 25 mutations in 40 individuals. Sixteen mutations had not been reported previously. Mutations were found in 35 patients with classical bilateral PNH, in three with PNH with EDS and in two with unilateral PNH. Twenty one mutations were nonsense and frame-shift and four missense. The high prevalence of mutations causing protein truncations confirms that loss of function is the major cause of the disorder. FLNA mutations were found in 100% of familial cases with X-linked PNH (10 families: 8 with classical bilateral PNH, 1 with EDS and 1 with unilateral PH) and in 26% of sporadic patients with classical bilateral PNH. Overall, mutations occurred in 49% of individuals with classical bilateral PNH irrespective of their being familial or sporadic. However, the chances of finding a mutation were exceedingly gender biased with 93% of mutations occurring in females and 7% in males. The probability of finding FLNA mutations in other phenotypes was 4% but was limited to the minor variants of PNH with EDS and unilateral PNH. Statistical analysis considering all 42 mutations described so far identifies a hotspot region for PNH in the actin-binding domain (P < 0.05).
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Affiliation(s)
- E Parrini
- Research Institute, I.R.C.C.S, Stella Maris Foundation, University of Pisa, Italy
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Abstract
The aim of the study is to evaluate the efficacy and tolerability of the five triptans that are commercially available in Italy (zolmitriptan 2.5 mg, rizatriptan 10 mg, sumatriptan 100 mg, almotriptan 12.5 mg and eletriptan 40 mg). The study was conducted in single-blind versus placebo and its duration was 18 months. At the Headache Centre of the 'Agostino Gemelli' Hospital in Rome we selected 42 patients, suffering from headache with and without aura (International Headache Society Committee on Headache Classification, 1988 Cephalalgia 8:1-96), whose headache frequency ranged between 1- and 4-monthly crises. For a total of 25 crises, for every five consecutive crises, a different triptan was taken. The end-points of the study were as follows: response at 2 h, 'pain free' at 2 h and 'sustained pain free' (at 24 h). The intra-patient consistency and the tolerability were also evaluated. Thirty patients completed the study and the statistical analysis was only applied to these patients. No substantial difference in terms of the efficacy of the triptans was noted; all triptans were well tolerated. These results suggest the possibility of testing different triptans in the same patient in order to identify the ideal drug for every patient.
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Affiliation(s)
- C Vollono
- Headache Center, Università Cattolica del Sacro Cuore, Rome, Italy
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Aalseth C, Anderson D, Arthur R, Avignone F, Baktash C, Ball T, Barabash A, Bertrand F, Brodzinski R, Brudanin V, Bugg W, Champagne A, Chan YD, Cianciolo T, Collar J, Creswick R, Descovich M, Di Marco M, Doe P, Dunham G, Efremenko Y, Egerov V, Ejiri H, Elliott S, Emanuel A, Fallon P, Farach H, Gaitskell R, Gehman V, Grzywacz R, Hallin A, Hazma R, Henning R, Hime A, Hossbach T, Jordan D, Kazkaz K, Kephart J, King G, Kochetov O, Konovalov S, Kouzes R, Lesko K, Luke P, Luzum M, Macchiavelli A, McDonald A, Mei D, Miley H, Mills G, Mokhtarani A, Nomachi M, Orrell J, Palms J, Poon A, Radford D, Reeves J, Robertson R, Runkle R, Rykaczewski K, Saburov K, Sandukovsky Y, Sonnenschein A, Tornow W, Tull C, van de Water R, Vanushin I, Vetter K, Warner R, Wilkerson J, Wouters J, Young A, Yumatov V. The proposed Majorana 76Ge double-beta decay experiment. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.nuclphysbps.2004.11.052] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mei D, Capuano A, Vollono C, Evangelista M, Ferraro D, Tonali P, Di Trapani G. Topiramate in migraine prophylaxis: a randomised double-blind versus placebo study. Neurol Sci 2004; 25:245-50. [PMID: 15624081 DOI: 10.1007/s10072-004-0350-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2004] [Accepted: 11/25/2004] [Indexed: 10/26/2022]
Abstract
The objectives of this paper are to evaluate the efficacy and tolerability of topiramate, given at the dose of 100 mg/day, in the prophylactic treatment of migraine. The hypothesis that migraine is the result of a condition of neuronal hyperexcitability and the quest for drugs that are able to limit the number of crises justifies the attempt to utilise the new antiepileptic drugs in the prophylaxis of this pathology, which is so important due to its high prevalence and due to the high disability it causes. The study was randomised double-blind versus placebo, lasting 16 weeks, and was preceded by a run-in period of 4 weeks. One hundred and fifteen patients were randomly allocated to treatment with topiramate (TPM) or placebo: 35 patients completed the study in the TPM group and 37 patients in the placebo group. At the end of the double-blind phase of study, in the TPM group, we recorded a significant reduction in the frequency of migraine crises (from 5.26 at baseline to 2.60 in the last 4 weeks), a significant reduction in the quantity of symptomatic drugs taken as compared to the placebo control group (from 6.17+/-1.80 SD to 2.57+/-0.80) and a significant downward trend in the number of days of disability over the 16-week period of therapy. In the TPM group, side effects were transient and well tolerated. TPM has thus proven its efficacy and tolerability in the prophylaxis of migraine.
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Affiliation(s)
- D Mei
- Center for the Study of Headaches, Policlinico Universitario Agostino Gemelli, Istituto di Neurologia, L.go Agostino Gemelli 8, I-00168 Rome, Italy.
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Guerrini R, Mei D, Sisodiya S, Sicca F, Harding B, Takahashi Y, Dorn T, Yoshida A, Campistol J, Krämer G, Moro F, Dobyns WB, Parrini E. Germline and mosaic mutations of FLN1 in men with periventricular heterotopia. Neurology 2004; 63:51-6. [PMID: 15249610 DOI: 10.1212/01.wnl.0000132818.84827.4d] [Citation(s) in RCA: 119] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To describe the phenotypic spectrum and genetics of periventricular nodular heterotopia (PNH) caused by FLN1 mutations in four men. BACKGROUND X-linked PNH caused by FLN1 mutations (MIM #300049) implies prenatal or early postnatal lethality in boys and 50% recurrence risk in daughters of affected women. METHODS Clinical examination, cognitive testing, MRI, and mutation analysis (denaturing high-performance liquid chromatography and direct sequencing) on blood lymphocytes and single hair roots were performed for nine affected individuals, including three men. Neuropathologic study of the brain was performed for an affected boy. RESULTS In two families, missense mutations were transmitted from mother to son (Met102Val) and from father to daughter (Ser149Phe), causing mild phenotypes in both genders, including unilateral PNH. In a third family, a man was mosaic for an A>G substitution (intron 11 acceptor splice site) on leukocyte DNA and hair roots (mutant = 42% and 69%). Single hair root analysis confirmed that the mutation was not present in all ectodermal derivative cells. A healthy daughter had inherited the X chromosome from her father's wild-type germinal cell population. In the fourth family, an eight-base deletion (AGGAGGTG, intron 25 donor splice site) led to early deaths of boys. Postmortem study in a newborn boy revealed PNH and cardiovascular, genitourinary, and gut malformations. CONCLUSIONS Periventricular nodular heterotopia caused by FLN1 mutations in men has a wide clinical spectrum and is caused by different genetic mechanisms, including somatic mosaicism. Mutation analysis of FLN1 should support genetic counseling in men with periventricular nodular heterotopia.
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MESH Headings
- Abnormalities, Multiple/genetics
- Brain Diseases/genetics
- Cell Movement/genetics
- Cerebral Ventricles/abnormalities
- Child, Preschool
- Choristoma/genetics
- Chromosomes, Human, X/genetics
- Cisterna Magna/abnormalities
- Contractile Proteins/deficiency
- Contractile Proteins/genetics
- DNA Mutational Analysis
- Dosage Compensation, Genetic
- Female
- Filamins
- Genes, Lethal
- Genetic Diseases, X-Linked/diagnosis
- Genetic Diseases, X-Linked/genetics
- Germ-Line Mutation
- Hair Follicle/chemistry
- Humans
- Infant, Newborn
- Introns/genetics
- Male
- Microfilament Proteins/deficiency
- Microfilament Proteins/genetics
- Middle Aged
- Mosaicism
- Mutation, Missense
- Neurons/pathology
- Pedigree
- Phenotype
- Point Mutation
- RNA Splice Sites/genetics
- Sequence Deletion
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Affiliation(s)
- R Guerrini
- Division of Child Neurology and Psychiatry, University of Pisa and IRCCS Fondazione Stella Maris, via dei Giacinti 2, 56018 Calambrone Pisa, Italy.
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