Background: COPD is a major cause of morbidity and mortality in populations eligible for lung cancer screening. We investigated the role of spirometry in a community-based lung cancer screening programme.
Methods: Ever smokers, age 55-74, resident in three deprived areas of Manchester were invited to a 'Lung Health Check' (LHC) based in convenient community locations.
Chronic pulmonary aspergillosis (CPA) complicates treated pulmonary tuberculosis (TB), with high 5-year mortality. We measured CPA prevalence in this group.398 Ugandans with treated pulmonary TB underwent clinical assessment, chest radiography and -specific IgG measurement.
View Article and Find Full Text PDFWe report results from the second annual screening round (T1) of Manchester's 'Lung Health Check' pilot of community-based lung cancer screening in deprived areas (undertaken June to August 2017). Screening adherence was 90% (n=1194/1323): 92% of CT scans were classified negative, 6% indeterminate and 2.5% positive; there were no interval cancers.
View Article and Find Full Text PDFBackground: Long-term opioid analgesic prescribing in chronic non-cancer pain (CNCP) is a growing worldwide concern. This has implications for optimal healthcare management in general and chronic pain management specifically. This work documents the development of a review tool and its use in the South West of England in a locality that showed opioid prescribing levels higher than surrounding localities.
View Article and Find Full Text PDFChronic pulmonary aspergillosis (CPA) is a recognized complication of pulmonary tuberculosis (TB). In 2015, the World Health Organization reported 2.2 million new cases of nonbacteriologically confirmed pulmonary TB; some of these patients probably had undiagnosed CPA.
View Article and Find Full Text PDFWe report baseline results of a community-based, targeted, low-dose CT (LDCT) lung cancer screening pilot in deprived areas of Manchester. Ever smokers, aged 55-74 years, were invited to 'lung health checks' (LHCs) next to local shopping centres, with immediate access to LDCT for those at high risk (6-year risk ≥1.51%, PLCO calculator).
View Article and Find Full Text PDFAntibiotic resistance presents a critical public health challenge and the transmission of antibiotic resistance via environmental pathways continues to gain attention. Factors driving the spread of antibiotic resistance genes (ARGs) in surface water and sources of ARGs in urban stormwater have not been well-characterized. In this study, five ARGs (sul1, sul2, tet(O), tet(W), and erm(F)) were quantified throughout the duration of three storm runoff events in an urban inland stream.
View Article and Find Full Text PDFElevated concentrations of fecal indicator bacteria in receiving waters during wet-weather flows are a considerable public health concern that is likely to be exacerbated by future climate change and urbanization. Knowledge of factors driving the fate and transport of fecal indicator bacteria in stormwater is limited, and even less is known about molecular fecal indicators, which may eventually supplant traditional culturable indicators. In this study, concentrations and loading rates of both culturable and molecular fecal indicators were quantified throughout six storm events in an instrumented inland urban stream.
View Article and Find Full Text PDFThis review updates the basic biology of lung DCs and their functions. Lung DCs have taken center stage as cellular therapeutic targets in new vaccine strategies for the treatment of diverse human disorders, including asthma, allergic lung inflammation, lung cancer, and infectious lung disease. The anatomical distribution of lung DCs, as well as the division of labor between their subsets, aids their ability to recognize and endocytose foreign substances and to process antigens.
View Article and Find Full Text PDFThe innate immune system consists of multiple cell types that express germline-encoded pattern recognition receptors that recognize pathogen-associated molecular patterns (PAMPs) or danger-associated molecular patterns (DAMPs). Allergens are frequently found in forms and mixtures that contain PAMPs and DAMPs. The innate immune system is interposed between the external environment and the internal acquired immune system.
View Article and Find Full Text PDFDuring the last decade, there have been concerted efforts to reduce beryllium (Be) exposure in the workplace and thereby reduce potential cases of this occupational lung disorder. Despite these efforts, it is estimated that there are at least one million Be-exposed individuals in the U.S.
View Article and Find Full Text PDFOccupational exposure to beryllium (Be) results in Be sensitization (BeS) that can progress to pulmonary granulomatous inflammation associated with chronic Be disease (CBD). Be-specific lymphocytes are present in the blood of patients with BeS and in the blood and lungs of patients with CBD. Sulfasalazine and its active metabolite, mesalamine, are clinically used to ameliorate chronic inflammation associated with inflammatory bowel disease.
View Article and Find Full Text PDFThis article summarizes the proceedings of a 2008 Workshop on Food Allergy Clinical Trials Design co-organized by the National Institute of Allergy and Infectious Diseases and the US Food and Drug Administration. The use of food allergens both as therapy and for oral food challenges is associated with a risk of anaphylaxis. Investigators are strongly encouraged to address regulatory considerations by discussing proposed studies with the US Food and Drug Administration.
View Article and Find Full Text PDFThis study evaluated school coaches' perceptions, assessments, and use of a toolkit to prevent and manage concussions among school athletes. A computer-assisted telephone survey was conducted with a stratified, random sample of high school coaches (n = 497; response rate = 39.3%; cooperation rate = 81.
View Article and Find Full Text PDFAm J Respir Crit Care Med
May 2008
Rationale: Occupational exposure to beryllium (Be) can result in chronic granulomatous inflammation characterized by the presence of Be-specific CD4+ T cells. Studies show that oxidative stress plays a role in the pathogenesis of chronic inflammatory disorders.
Objectives: We hypothesized that Be-induced oxidative stress modulates the proliferation of Be-specific CD4+ T cells.
Background: Beryllium stimulates TNF-alpha from chronic beryllium disease (CBD) bronchoalveolar lavage (BAL) cells.
Objective: We sought to relate TNF polymorphisms to beryllium-stimulated TNF-alpha production, to the development of CBD, and to the risk of more severe CBD over time.
Methods: We recruited 147 patients with CBD, 112 beryllium-sensitized subjects, and 323 control subjects; genotyped 5 TNF promoter polymorphisms; and measured beryllium-stimulated and unstimulated BAL cell TNF-alpha production from a subset of subjects.
Implementation of evidence-based HIV/STD prevention interventions can play an important role in reducing HIV and sexually transmitted diseases. This article describes the development, implementation, and lessons learned of the Diffusion of Effective Behavioral Interventions (DEBI) project, a strategy funded by the Centers for Disease Control and Prevention to diffuse evidence-based, group- and community-level HIV/STD prevention interventions to health departments and community-based organizations nationwide. The article specifically provides an overview of the rationale, description, and theoretical foundation of the project; a review of marketing efforts, including assessment of interests, needs, and capacities relative to the project; a description of project products, their purpose, approach employed to develop them, and their use by implementers; a description of the project's training coordination functions and activities; technical assistance issues; an overview of process and outcome evaluation components; new developments in response to feedback; and a discussion of future directions for DEBI.
View Article and Find Full Text PDFAm J Respir Cell Mol Biol
February 2007
Beryllium (Be)-antigen presentation to Be-specific CD4(+) T cells from the lungs of patients with chronic beryllium disease (CBD) results in T cell proliferation and TNF-alpha secretion. We tested the hypothesis that Be-induced, CBD bronchoalveolar lavage (BAL) T cell, transcription-dependent, TNF-alpha secretion was accompanied by specific transcription factor upregulation. After 6 h of Be stimulation, CBD BAL cells produced a median of 883 pg/ml TNF-alpha (range, 608-1,275 pg/ml) versus 198 pg/ml (range, 116-245 pg/ml) by unstimulated cells.
View Article and Find Full Text PDFObjective: We hypothesized that beryllium (Be) might persist in lung granulomas in patients with chronic beryllium disease (CBD).
Methods: A total of 33 Be-exposed ceramics workers underwent transbronchial biopsy. They were classified based on histopathology and Be-lymphocyte proliferation test as CBD or other categories.
Free Radic Biol Med
April 2005
Beryllium (Be), the etiologic agent of chronic beryllium disease, is a toxic metal that induces apoptosis in human alveolar macrophages. We tested the hypothesis that Be stimulates the formation of reactive oxygen species (ROS) which plays a role in Be-induced macrophage apoptosis. Mouse macrophages were exposed to 100 microM BeSO4 in the absence and presence of the catalytic antioxidant MnTBAP (100 microM).
View Article and Find Full Text PDFBackground: The immunologic response to allergen immunotherapy with 3 serial 5-fold doses of cat extract has been studied after approximately 5 weeks of immunotherapy. The highest dose containing 15 mug of Fel d 1 produced the most consistent and favorable response. It is unknown whether the comparative response on reaching a maintenance dose is maintained with long-term maintenance therapy.
View Article and Find Full Text PDFBackground: This study evaluated the extent to which school districts in Massachusetts adopted HIV education policies consistent with state education agency recommendations, and whether adoption of state-recommended policy language was associated with other core components of school-based HIV prevention programs such as staff development, curriculum, and implementation characteristics.
Methods: A census of health coordinators (n = 251) and high school HIV teachers (n = 174) in randomly selected schools in Massachusetts were surveyed. Chi-squares and analysis of variance (ANOVAs) were used to analyze data.
A beryllium (Be)-ferritin adduct containing 270 pm of Be stimulated proliferation of bronchoalveolar lavage (BAL) lymphocytes from subjects with chronic beryllium disease (CBD) at concentrations 5-6 logs lower than the amounts of beryllium sulfate (BeSO4) needed to induce proliferation. We observed increased apoptotic CBD BAL macrophages after exposure to both BeSO4 (50 +/- 6%, mean +/- SEM, P <0.05 versus unstimulated controls) and Be-ferritin (40 +/- 2%), whereas only 2.
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