Jonathan Yuen

ORCID: 0000-0003-2944-9226
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About
Contact & Profiles
Research Areas
  • Plant Pathogens and Resistance
  • Plant Pathogens and Fungal Diseases
  • Plant Disease Resistance and Genetics
  • Wheat and Barley Genetics and Pathology
  • Yeasts and Rust Fungi Studies
  • Plant Pathogenic Bacteria Studies
  • Genetics and Plant Breeding
  • Plant Virus Research Studies
  • Mycorrhizal Fungi and Plant Interactions
  • Agriculture, Plant Science, Crop Management
  • Nematode management and characterization studies
  • Cancer Risks and Factors
  • Agronomic Practices and Intercropping Systems
  • Mycotoxins in Agriculture and Food
  • Potato Plant Research
  • DNA Repair Mechanisms
  • Insect-Plant Interactions and Control
  • Plant-Microbe Interactions and Immunity
  • Research on scale insects
  • Forest Insect Ecology and Management
  • Plant pathogens and resistance mechanisms
  • Estrogen and related hormone effects
  • Carcinogens and Genotoxicity Assessment
  • Gallbladder and Bile Duct Disorders
  • Crop Yield and Soil Fertility

Swedish University of Agricultural Sciences
2013-2023

Lombardia Informatica (Italy)
2021

Kansas State University
2017

International Center for Tropical Agriculture
2017

Institut National Polytechnique de Toulouse
2017

Université de Toulouse
2017

AGroecologies, Innovations & Ruralities
2017

Università Cattolica del Sacro Cuore
2017

North Carolina State University
2017

Rothamsted Research
2017

We analyzed cancer incidence and mortality in a cohort of 22,597 Swedish women who were prescribed replacement hormones. After 13 years follow-up national registries, 2,330 incident cases 848 deaths observed. Overall, our results reassuring since rate ratios (SIRs) for 16 sites (SMRs) all 10 examined at, or lower than, unity. However, we found that exposure to an estrogen-progestin combined brand was associated with increasing relative risk breast time, the SIR reaching 1.4 (95% CI 1.1–1.8)...

10.1002/(sici)1097-0215(19960729)67:3<327::aid-ijc4>3.0.co;2-t article EN International Journal of Cancer 1996-07-29

Summary The extremely high risk reported for some types of cancer among patients with common variable immunodeficiency (CVID) is based on a limited number investigations. Therefore, we examined the risks 562 Danish and Swedish CVID or IgA deficiency 2071 relatives in 1958–96. were identified through an Immunodeficiency Register hospital records, while traced population registers. Cancer incidence was assessed by linkage to Registries compared that general population. Among 386 deficiency,...

10.1046/j.1365-2249.2002.02004.x article EN Clinical & Experimental Immunology 2002-11-24

<h3>Abstract</h3> <b>Objective</b>: To investigate a possible link between exposure to ultraviolet light and the almost epidemic increase in non-Hodgkin9s lymphoma worldwide. Because is known cause skin cancers, association cancer was studied. <b>Design</b>: Secondary occurrence of either malignant melanoma or squamous cell cohorts patients with first diagnosis chronic lymphocytic leukaemia, vice versa, were Expected numbers subsequent cancers calculated by sex, age, period specific national...

10.1136/bmj.310.6993.1491 article EN BMJ 1995-06-10

Background: Epidemiologic studies of the families patients with ataxia-telangiectasia (A-T), a recessive genetic neurologic disorder caused by mutation ATM gene, suggest that heterozygous carriers an are at increased risk cancer. A population-based study cancer incidence in A-T unbiased selection and tracing relatives would confirm this hypothesis. Methods: We conducted Nordic countries 1218 blood 56 from 50 families. The were identified population registries, occurrence was determined...

10.1093/jnci/93.2.121 article EN JNCI Journal of the National Cancer Institute 2001-01-17

To determine more precise and accurate cancer risk estimates for achalasia that could be used to plan surveillance.Cohort.Swedish population.All patients with listed in the population-based Swedish Inpatient Register from 1964 through 1989.The observed number of cancers cohort was compared expected numbers (standardized incidence ratio [SIR]) each 5-year age group calendar year observation, calculated using data Cancer Registry.A total 1062 accumulated 9864 years follow-up. The mean at entry...

10.1001/jama.1995.03530170039029 article EN JAMA 1995-11-01

Abstract A hospital‐based case‐control study of oesophageal cancer was carried out in the Heilongjiang Province, a low‐risk area for China. From May 1985 to 1989, 196 histologically confirmed cases and 392 controls with other (non‐neoplastic) diseases were personally interviewed wards 5 major hospitals. Information obtained about usual consumption early 1980s 32 contributors diet province, socio‐demographic status, smoking alcohol consumption. Odds ratios (OR) from logistic regression...

10.1002/ijc.2910570108 article EN International Journal of Cancer 1994-04-01

Global food security is one of the most pressing issues for humanity, and agricultural production critical achieving this. The existing analyses specific threats to seldom bring out contrasts associated with different levels economic development climatic zones. We therefore investigated same biophysical in three modelled types countries conditions. analysed were environmental degradation, climate change diseases pests animals plants. These a methodology enabling risks be compared. timeframe...

10.1007/s12571-014-0331-y article EN cc-by Food Security 2014-02-17

The impacts of climate change on ecosystem services are complex in the sense that effective prediction requires consideration a wide range factors. Useful analysis climate‐change crops and native plant systems will often require array other biota interact with plants, including diseases, animal herbivores, weeds. We present framework for complexity effects mediated by disease. This can support evaluation level model likely to be required analysing Our incorporates following set questions...

10.1111/j.1365-3059.2010.02409.x article EN Plant Pathology 2011-01-10

Abstract The discipline of plant pathology has an expanding remit requiring a multi-faceted, interdisciplinary approach to capture the complexity interactions for any given disease, disease complex or syndrome. This review discussed recent developments in research and identifies some key issues that, we anticipate, must be faced meet food security environmental challenges that will arise over coming decades. In meeting these issues, challenge turn is community respond by contributing wider...

10.1186/s43170-021-00042-x article EN cc-by CABI Agriculture and Bioscience 2021-05-26

Abstract Potato late blight, caused by Phytophthora infestans , is a critical disease of potato and other solanaceous crops, such as tomato. The history blight is, in some ways, the modern plant pathology. It received much attention mid 1800’s causing Irish famine, pathogen played prominent role development concept pathogens. pathosystem has also been important pesticides that are active against pathogens, model system understanding concepts ranging from cellular processes, how resistance to...

10.1007/s12571-021-01141-3 article EN cc-by Food Security 2021-01-15

Case-control studies of lifestyle factors have been inconclusive in the study endometrial cancer, and prospective data are scarce. Our aim was to examine associations physical activity, weight change, fruit, vegetable, alcohol consumption, socio-economic status, parity presence diabetes mellitus with risk cancer a cohort study. In 1967, 11,659 women Swedish Twin Registry, born 1886–1925, answered 107-item questionnaire, including questions about diet, activity other factors. Complete...

10.1002/(sici)1097-0215(19990702)82:1<38::aid-ijc8>3.0.co;2-q article EN International Journal of Cancer 1999-07-02

Stripe rust, caused by Puccinia striiformis f. sp. tritici, is one of the most important diseases on wheat in United States. In 2011, severe stripe rust extensive application fungicides western States, and disease was more widespread yield loss eastern States 2012. this study, we characterized virulences identified races P. tritici testing samples collected throughout 2011 2012 a set 18 Yr single-gene differentials. 35 were from 349 viable 19 states Ontario province Canada, with PSTv-11...

10.1094/pdis-10-15-1122-re article EN other-oa Plant Disease 2015-12-20

The biology of late blight potato and tomato, caused by P hytophthora infestans , changed when sexual reproduction the pathogen became possible in many parts world, including E urope. In northern urope, especially S candinavia, there is increasing evidence that reproducing sexually on a regular basis, although other regions further south or to west it appears reproduce primarily clonal manner. presence both mating types, production viable oospores, observations fields with soilborne sources...

10.1111/j.1365-3059.2012.02685.x article EN Plant Pathology 2012-09-07

Pathogen buildup in vegetative planting material, termed seed degeneration, is a major problem many low-income countries. When smallholder farmers use produced on-farm or acquired outside certified programs, it often infected. We introduce risk assessment framework for evaluating the relative performance of individual and combined components an integrated health strategy. The frequency distribution management outcomes was evaluated models incorporating biological environmental heterogeneity,...

10.1094/phyto-09-16-0340-r article EN cc-by-nc-nd Phytopathology 2017-05-26

Rule‐based systems for the prediction of occurrence disease can be evaluated in a number different ways. One way is to examine probability before and after using predictor. Bayes's Theorem useful tool how forecast (either positive or negative) affects occurrence, simple analyses conducted without knowing risk preferences targeted decision makers. Likelihood ratios calculated from sensitivity specificity forecast, provide convenient summaries performance. They also used simpler form Theorem....

10.1046/j.0032-0862.2002.00741.x article EN Plant Pathology 2002-08-01
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