Publications by authors named "Frances Williams"

Background: Crop pests cause substantial crop yield and economic losses, food insecurity, and negative impacts on human health and environment globally. Timely provision of pest risk alerts - that is, the optimum time to intervene against key pests before invasion or establishment - to smallholder farmers on pest management could improve farm performance. However, there is little quantitative evidence testing this hypothesis.

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Study Design: Retrospective and cross-sectional study.

Objective: The study aims to develop an open software for lumbar spine image analysis enabling no-code approach to lumbar spine segmentation, grading, and intervertebral disc height index (DHI) calculations with robust evaluation of the application on six external datasets from diverse geographical regions.

Summary Of Data: The datasets used include NFBC1966 (Finland), HKDDC (Hong Kong), TwinsUK (UK), CETIR (Spain), NCSD (Hungary), SPIDER (Netherlands), and Mendeley (global).

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Background: Chronic inflammation is linked to frailty and deprivation, both of which are comorbid with cardiovascular diseases (CVD). This study aims to identify inflammatory proteins associated with both socioeconomic deprivation and frailty, and assess their role in mediating cardiovascular risk in a large cohort with independent replication.

Methods: We included 2144 TwinsUK females aged 37-84 with concurrent measures of frailty (frailty index), index of multiple deprivation (IMD), cardiovascular risk (ASCVD score), and 74 proteins (Olink inflammation panel).

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More than a half of plasma proteins are N-glycosylated. Most of them are synthesized, glycosylated, and secreted to the bloodstream by liver and lymphoid tissues. While associations with N-glycosylation are implicated in the rising number of liver, cardiometabolic, and immune diseases, little is known about the genetic regulation of this process.

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Objectives: Widespread pain is a hallmark characteristic of fibromyalgia, commonly affecting older individuals. This study aimed to identify novel genetic variants associated with widespread pain by utilizing the extensive UK Biobank dataset.

Methods: We conducted a primary genome-wide association study (GWAS) using a novel definition of widespread pain, defined as pain experienced all over the body during the past month.

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Purpose: To examine associations between lumbar intervertebral disc degeneration (LDD) and type II Modic changes (MC) when retaining information at each interspace ("interspace-level analysis"), as compared to aggregating information across interspaces as is typically done in spine research ("person-level analysis"). The study compared results from (1) interspace-level analyses assuming a common relationship across interspaces (the "interspace-level, common-relationship" approach), (2) interspace-level analyses allowing for interspace-specific associations (an "interspace-level, interspace-specific" approach), (3) and a conventional person-level analytic approach.

Methods: Adults in primary care (n = 147) received lumbar spine magnetic resonance imaging and neuroradiologist-evaluated assessments of prevalent disc height narrowing (DHN), type II MC, and other LDD parameters.

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Background: Low back pain (LBP) is a common musculoskeletal problem and the leading cause of disability worldwide. Manual therapy and exercise therapy are used by physiotherapists to treat LBP. The evidence base for exercise is strong, however less so for manual therapy.

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Background: Chronic back pain (CBP) is a major cause of disability globally. While its etiology is multifactorial, specific contributing genetic and environmental factors remain to be discovered. Paraspinal muscle fat has been shown in human and preclinical studies to be related to CBP.

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Chronic widespread musculoskeletal pain (CWP), a significant health issue affecting individuals and society, is often diagnosed as part of fibromyalgia but is not generally considered inflammatory. This study investigated the relationship between blood-based inflammatory factors and CWP in 904 individuals from the TwinsUK cohort. Participants, free of major inflammatory conditions, completed questionnaires to assess CWP.

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: Irritable bowel syndrome (IBS) is a complex disorder affecting 10% of the global population, but the underlying mechanisms remain poorly understood. By integrating multifluid metabolomics, we aimed to identify metabolite markers of IBS in a large population-based cohort. : We included individuals from TwinsUK with and without IBS, ascertained using the Rome III criteria, and analysed serum (232 cases, 1707 controls), urine (185 cases, 1341 controls), and stool (186 cases, 1284 controls) metabolites (Metabolon Inc.

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Chronic back pain (CBP) is a disabling condition with a lifetime prevalence of 40% and a substantial socioeconomic burden. Because of the high heterogeneity of CBP, subphenotyping may help to improve prediction and support personalized treatment of CBP. To investigate CBP subphenotypes, we decomposed its genetic background into a shared one common to other chronic pain conditions (back, neck, hip, knee, stomach, and head pain) and unshared genetic background specific to CBP.

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Purpose: To test the association between serum inflammatory markers and dry eye disease (DED) using a hypothesis-free proteomic approach in a population-based cohort.

Methods: A total of 2602 unselected community-based participants (mean age 61.5 (range 21-92 years), 94.

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Purpose: To examine associations between lumbar intervertebral disc degeneration (LDD) and type II Modic changes (MC) when retaining information at each interspace ("interspace-level analysis"), as compared to aggregating information across interspaces as is typically done in spine research ("person-level analysis") . The study compared results from (1) interspace-level analyses assuming a common relationship across interspaces (the "interspace-level, common-relationship" approach), (2) interspace-level analyses allowing for interspace-specific associations (an "interspace-level, interspace-specific" approach), and (3) a conventional person-level analytic approach.

Methods: Adults in primary care (n=147) received lumbar spine magnetic resonance imaging (MRI) and neuroradiologist-evaluated assessments of prevalent disc height narrowing (DHN), type II MC, and other LDD parameters.

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Introduction: Back pain (BP) is a complex heritable trait with an estimated heritability of 40% to 60%. Less than half of this can be explained by known genetic variants identified in genome-wide association studies.

Objectives: We applied a powerful multi-trait and gene-based approach to association analysis of BP to identify novel genes associated with BP.

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Article Synopsis
  • - Chronic widespread pain (CWP) is linked to increased arterial stiffness and carotid plaque, indicating a potential risk for cardiovascular disease, as observed in a study with around 3000 participants from TwinsUK.
  • - Genetic factors account for a significant portion of the variations in CWP and its cardiovascular implications, with twin modeling revealing shared pathways between CWP, arterial stiffness, and plaque presence.
  • - The study also suggests a causal relationship between CWP and coronary artery disease, implying that individuals with CWP may face heightened cardiovascular risks partly due to genetic influences.
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Article Synopsis
  • Lumbar degenerative spondylolisthesis (LDS) is a condition involving spinal instability due to intervertebral disc degeneration and facet joint changes, leading to pain and potential surgery, but its causes are not well understood.
  • This study examined the relationship between gut microbiome dysbiosis (an imbalance of gut bacteria) and spine health in symptomatic patients with and without LDS by analyzing fecal samples.
  • Findings indicated that patients with LDS showed more severe disc degeneration, distinct gut microbiome structures, and a higher ratio of pro-inflammatory bacteria compared to those without LDS, suggesting a possible link between gut health and spinal conditions.
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Objective: The chronic pain syndromes (CPS) include syndromes such as chronic widespread pain (CWP), dry eye disease (DED) and irritable bowel syndrome (IBS). Highly prevalent and lacking pathognomonic biomarkers, the CPS are known to cluster in individuals in part due to their genetic overlap, but patient diagnosis can be difficult. The success of quantitative sensory testing (QST) and inflammatory biomarkers as phenotyping tools in conditions such as painful neuropathies warrant their investigation in CPS.

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Objective: We conducted a Mendelian randomization (MR) study to examine causal associations of C-reactive protein (CRP) with (1) spinal pain; (2) extent of multisite chronic pain; and (3) chronic widespread musculoskeletal pain.

Design: Two-sample MR study.

Setting/subjects: We used summary statistics from publicly available genome-wide association studies (GWAS) conducted in multiple cohorts and biobanks.

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Background Context: Associations between magnetic resonance imaging (MRI)-detected lumbar intervertebral disc degeneration (LDD) and LBP are often of modest magnitude. This association may be larger in specific patient subgroups.

Purpose: To examine whether the association between LDD and LBP is modified by underlying genetic predispositions to pain.

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The relationship between rheumatoid arthritis (RA) and early onset atherosclerosis is well depicted, each with an important inflammatory component. Glycoprotein acetyls (GlycA), a novel biomarker of inflammation, may play a role in the manifestation of these two inflammatory conditions. The present study examined a potential mediating role of GlycA within the RA-atherosclerosis relationship to determine whether it accounts for the excess risk of cardiovascular disease over that posed by lipid risk factors.

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Inflammageing is a condition of perpetual low-grade inflammation induced by ageing. Inflammageing may be predicted by the C-reactive protein (CRP) or by a recently described biomarker which measures N-glycosylated side chains of the carbohydrate component of several acute-phase proteins known as GlycA. The objective of this study was to examine in depth the genetic relationships between CRP and GlycA as well as between each of them and other selected cytokines, which may shed light on the mechanisms of inflammageing.

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Introduction: Intervertebral disc degeneration and Modic change are the main spinal structural changes associated with chronic low back pain (LBP). Both conditions are thought to manifest local inflammation and if inflammatory proteins translocate to the blood circulation could be detected systemically. The work here assesses whether the presence of disc degeneration is associated with detectable blood level changes of five inflammatory markers and whether chronic LBP is associated with these changes.

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Purpose: The following study aimed to determine the existence of blood biomarkers in symptomatic patients with or without lumbar Modic changes (MC).

Methods: A cross-sectional sub-analyses of a prospective cohort was performed. Fasting blood samples were collected from patients with and without lumbar MC who had undergone spinal fusion or microdiscectomy.

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