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A Systematic Review on the Role of Wildlife as Carriers and Spreaders of Campylobacter spp. Animals (Basel) 2023; 13:ani13081334. [PMID: 37106897 PMCID: PMC10135385 DOI: 10.3390/ani13081334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Campylobacter spp. are important zoonotic pathogens and can cause one of the main bacterial diarrheal diseases worldwide. Research in the context of infection arising from transmission from other humans and other vertebrates has been extensive. A large fraction of these investigations has focused on domestic animals; however, there are also a number of publications which either totally, or at least in part, consider the role of wild or feral animals as carriers or spreaders of Campylobacter spp. Here, we carry out a systematic review to explore the role played by wild vertebrates as sources of Campylobacter spp. with a compilation of prevalence data for more than 150 species including reptiles, mammals and birds. We found that numerous vertebrate species can act as carriers of Campylobacter species, but we also found that some host specificity may exist, reducing the risk of spread from wildlife to domestic animals or humans.
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PLASTIC BRONCHITIS: A RARE COMPLICATION FOLLOWING A MOTOR VEHICLE COLLISION. Lymphology 2022. [DOI: 10.2458/lymph.5268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Plastic bronchitis, more appropriately termed chyloptysis, is a rare and potentially fatal condition caused by chylous coating of the airways. These cast coating can dislodge and become an obstructive mass in the patient's airway, necessitating rapid intervention. PB is well described to occur following single ventricle physiology heart disease corrective procedures, particularly following Fontan procedures. It is less commonly seen in traumatic settings. We present the youngest known case of a traumatic injury induced plastic bronchitis. A 19-year-old man was involved in a motor vehicle accident with airbag deployment. The airbags struck him in the chest; however, the patient felt well at the time and did not seek medical attention. Several months later the patient began coughing up milky white masses identified as casts. He was initially diagnosed with asthma but did not respond to therapy. He ultimately was found to have evidence of thoracic duct injury. Options for therapy were discussed, including possible thoracic duct ligation. The patient opted to continue a low-fat diet and has remained cast free. This case highlights the importance of considering plastic bronchitis in patients with cast production and a history of trauma to the chest.
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Plastic bronchitis: A rare complication following a motor vehicle collision. Lymphology 2022; 55:65-69. [PMID: 36170580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Plastic bronchitis, more appropriately termed chyloptysis, is a rare and potentially fatal condition caused by chylous coating of the airways. These cast coating can dislodge and become an obstructive mass in the patient's airway, necessitating rapid intervention. PB is well described to occur following single ventricle physiology heart disease corrective procedures, particularly following Fontan procedures. It is less commonly seen in traumatic settings. We present the youngest known case of a traumatic injury induced plastic bronchitis. A 19-year-old man was involved in a motor vehicle accident with airbag deployment. The airbags struck him in the chest; however, the patient felt well at the time and did not seek medical attention. Several months later the patient began coughing up milky white masses identified as casts. He was initially diagnosed with asthma but did not respond to therapy. He ultimately was found to have evidence of thoracic duct injury. Options for therapy were discussed, including possible thoracic duct ligation. The patient opted to continue a lowfat diet and has remained cast free. This case highlights the importance of considering plastic bronchitis in patients with cast production and a history of trauma to the chest.
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Writing exceptional (specific, student and criterion-focused) rubrics for nursing studies. Nurse Educ Pract 2020; 49:102851. [PMID: 33227695 DOI: 10.1016/j.nepr.2020.102851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 01/27/2020] [Accepted: 07/28/2020] [Indexed: 11/27/2022]
Abstract
Effective assessment of nurses in higher education is dependent on the interpretation and demonstration of learning outcomes by students and educators/academics. Rubrics can effectively communicate unit learning outcomes to students and may contribute towards the academic rigour of nursing courses, when assessment criteria are articulated clearly and consistently to both students and educators/academics. This paper aims to describe the different types and uses of rubrics, as well as outline the steps required to develop exceptional rubrics whilst using the literature as a basis for suggestions. Well written rubrics can facilitate consistency of marking across a student cohort, which may result in decreased student anxiety regarding assessment expectations, uniformity of assessment style and layout and may ensure that educators/academics across a teaching team are interpreting assessment criteria, consistently. Exceptional rubrics can empower students to success in academic assessments.
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10 Years Later : The Impact of the Affordable Care Act on Prevention and Public Health in North Carolina. N C Med J 2020; 81:377-380. [PMID: 33139469 DOI: 10.18043/ncm.81.6.377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The passage of the Affordable Care Act had a great impact on the landscape of public health programming and clinical preventive care in North Carolina. Large funding measures have supported community-based prevention efforts and led to policy, systems, and environmental changes to support a healthier population.
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398 Racial Disparities in Cardiac Arrest Resuscitation Efforts: A Cross-Sectional Study of Out-of-Hospital and Emergency Department Code Duration. Ann Emerg Med 2020. [DOI: 10.1016/j.annemergmed.2020.09.414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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The use of biomarkers in Alzheimer's disease: a case report. PROGRESS IN NEUROLOGY AND PSYCHIATRY 2019. [DOI: 10.1002/pnp.540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Clinical leadership and rural and remote practice: A qualitative study. J Nurs Manag 2019; 27:1314-1324. [PMID: 31162890 DOI: 10.1111/jonm.12813] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 05/28/2019] [Accepted: 05/31/2019] [Indexed: 11/29/2022]
Abstract
AIM To explore how clinical leadership is perceived by nurses in rural and remote areas of New South Wales, Australia. BACKGROUND There are few empirical studies aimed at understanding clinical leadership from a rural and remote perspective. METHODS A qualitative approach, based on interpretive phenomenology, used thematic analysis of recorded and transcribed interviews. Ethical approval was secured, 56 interviews were undertaken, across 14 different rural and remote health facilities, with nurses across the spectrum of practice. RESULTS Thematic analysis led to five themes and findings that support an understanding of clinical leadership from a rural and remote context. Clinical leaders were seen to considerably impact on the initiation of change and quality of care. They also faced barriers if the health facility was poorly staffed, lacked support and if the community were strongly co-dependent. CONCLUSION In rural and remote areas, clinical leadership is evident to support change, innovation and care quality. IMPLICATIONS FOR NURSING MANAGEMENT Managers should be aware that staff shortages and challenges to staff retention or the initiation of change are affected by poor clinical leadership. This paper suggests that managers who facilitate clinical leadership are better able to support professional education and greater efficiencies in the delivery of quality health care.
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Celluloid zombies: A research study of nurses in zombie-focused feature films. J Adv Nurs 2019; 75:1751-1763. [PMID: 31012150 DOI: 10.1111/jan.14036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/09/2019] [Accepted: 02/18/2019] [Indexed: 11/28/2022]
Abstract
AIM To explore how nurses, who are the principal character of zombie-focused feature films are portrayed. DESIGN A mixed methods study with a quantitative exploration of 44,000 feature film synopsis and additional online material for films made between 1900 and 2018 was used. Zombie-focused films (485) were reviewed for their genre, county, year of production, and plot-lines. Ten zombie films featuring nurses in key roles were analysed via an interpretive, qualitative thematic analysis. The study was undertaken between May 2018 - November 2018. METHOD A quantitative review of film synopses and relevant movie specific web sites or key literature for the word, 'zombie' and/or 'zombie nurse' and an interpretive, qualitative thematic analysis of nurse specific zombie films. RESULTS Most of the 485 zombie-focused films located were produced or co-produced in the USA. Only 115 zombie-focused feature films were identified with health professionals, of these, 27 films featured nurses, 10 with nurses in the main role. Nurses were portrayed as romantic, sexualized, caring, self-sacrificial and strong or evil, however, the over-arching representation of nurses in zombie films was tied to the depravity from which zombie sub-culture is based. CONCLUSION Few zombie films feature nurses in the main role. However, the negative, violent and deprived nature of this genre offers a poor reflection on nursing. IMPACT How nurses are portrayed in films is important because it influences how the public, patients, and nurses themselves view their profession and role. Understanding the way nurses are portrayed may help professional bodies to better prepare recruitment material.
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The HEIPS framework: Scaffolding interprofessional education starts with health professional educators. Nurse Educ Pract 2019; 34:63-71. [DOI: 10.1016/j.nepr.2018.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 06/25/2018] [Accepted: 11/03/2018] [Indexed: 11/28/2022]
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Clinical leadership and nursing explored: A literature search. J Clin Nurs 2018; 27:1730-1743. [DOI: 10.1111/jocn.14145] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2017] [Indexed: 11/30/2022]
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How local health departments work towards health equity. EVALUATION AND PROGRAM PLANNING 2017; 65:117-123. [PMID: 28810211 DOI: 10.1016/j.evalprogplan.2017.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 07/18/2017] [Accepted: 08/02/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Health inequities are exacerbated when health promotion programs and resources do not reach selected populations. Local health departments (LHDs)1 have the potential to address health equity via engaging priority populations in their work. However, we do not have an understanding of what local agencies are doing on this front. METHODS In the summer of 2016, we collaborated with informants from thirteen LHDs across North Carolina. Via semi-structured interviews, the research team asked informants about their LHD's understanding of health equity and engaging priority populations in program planning, implementation, and evaluation. FINDINGS All informants discussed that a key function of their LHD was to improve the health of all residents. LHDs with a more comprehensive understanding of health equity engaged members of priority populations in their organizations' efforts to a greater extent than LHDs with a more limited understanding. Additionally, while all LHDs identified similar barriers to engaging priority populations, LHDs that identified facilitators more comprehensively engaged members of the priority population in program planning, implementation, and evaluation. CONCLUSIONS LHDs are ideally situated between the research and practice worlds to address health equity locally. To promote this work, we should ensure LHDs hold an understanding of health equity, have the means to realize facilitators of health equity work, and recognize the complex context in which health equity work exists.
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Improved Respiratory Motion Tracking Through a Novel Fiducial Marker Placement Guidance System During Electromagnetic Navigational Bronchoscopy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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200 Patients With Acute HIV Infection Present to the Emergency Department With Nonspecific Symptoms. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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[P3–265]: RATE OF DECLINE IN ALZHEIMER's DISEASE STRATIFIED BY AGE. Alzheimers Dement 2017. [DOI: 10.1016/j.jalz.2017.06.1479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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246 Empiric Antiretroviral Therapy for Acute HIV Infection in the Emergency Department. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Twelve possible strategies for enhancing interprofessional socialisation in higher education: Findings from an interpretive phenomenological study. J Interprof Care 2016; 30:475-82. [PMID: 27268160 DOI: 10.3109/13561820.2016.1159186] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of this study was to investigate the interprofessional socialisation experiences of health professional educators (HPEs) across five health science faculties in Perth, Australia. Evidence supported the importance of educators teaching and learning together, although there was minimal evidence with regard to the type of support HPEs received or required in order to socialise interprofessionally within higher education. Interview participants comprised 26 HPEs from various health-related professions across Western Australia. An interpretive phenomenological framework was used to discover the phenomena of interprofessional socialisation. The examination of the data was undertaken via qualitative content analysis with the aid of NVivo 10 software. Content coding led to the development of categories, sub-categories, and then themes. Five themes were identified; however, only one of these themes, "interprofessional socialisation strategies within higher education," is explored within this article. Based on the data within this theme, 12 possible socialisation strategies (formal and informal) were identified for HPEs, which could be implemented within health science faculties, taking into account the organisation's culture and strategic intent towards interprofessional collaboration and education.
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The male of the species: a profile of men in nursing. J Adv Nurs 2016; 72:1155-68. [DOI: 10.1111/jan.12905] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2015] [Indexed: 11/28/2022]
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Availability of Farmers’ Markets and Supplemental Nutrition Assistance Program/Electronic Benefit Transfer Systems and Associations With Rurality, Poverty, Race/Ethnicity, and Obesity Among North Carolina Counties. JOURNAL OF HUNGER & ENVIRONMENTAL NUTRITION 2016. [DOI: 10.1080/19320248.2015.1045665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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2758 Is there a survival benefit for patients who receive post-operative adjuvant chemotherapy following secondary cytoreductive surgery (SCRS) for recurrent epithelial ovarian cancer (EOC)? Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31524-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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BHPR: Audit and Clinical Evaluation * 103. Dental Health in Children and Young Adults with Inflammatory Arthritis: Access to Dental Care. Rheumatology (Oxford) 2013. [DOI: 10.1093/rheumatology/ket196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Neuropsychiatric symptoms in a patient with primary antiphospholipid syndrome. PROGRESS IN NEUROLOGY AND PSYCHIATRY 2013. [DOI: 10.1002/pnp.277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Variant ataxia-telangiectasia presenting as primary-appearing dystonia in Canadian Mennonites. Neurology 2012; 78:649-57. [PMID: 22345219 DOI: 10.1212/wnl.0b013e3182494d51] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE To compare the phenotype of primary-appearing dystonia due to variant ataxia-telangiectasia (A-T) with that of other dystonia ascertained for genetics research. METHODS Movement disorder specialists examined 20 Canadian Mennonite adult probands with primary-appearing dystonia, as well as relatives in 4 families with parent-child transmission of dystonia. We screened for the exon 43 c.6200 C>A (p. A2067D) ATM mutation and mutations in DYT1 and DYT6. Clinical features of the individuals with dystonia who were harboring ATM mutations were compared with those of individuals without mutations. RESULT Genetic analysis revealed a homozygous founder mutation in ATM in 13 members from 3 of the families, and no one harbored DYT6 or DYT1 mutations. Dystonia in ATM families mimicked other forms of early-onset primary torsion dystonia, especially DYT6, with prominent cervical, cranial, and brachial involvement. Mean age at onset was markedly younger in the patients with variant A-T (n = 12) than in patients with other dystonia (n = 23), (12 years vs 40 years, p < 0.05). The patients with A-T were remarkable for the absence of notable cerebellar atrophy on MRI, lack of frank ataxia on examination, and absence of ocular telangiectasias at original presentation, as well as the presence of prominent myoclonus-dystonia in 2 patients. Many also developed malignancies. CONCLUSION Ataxia and telangiectasias may not be prominent features of patients with variant A-T treated for dystonia in adulthood, and variant A-T may mimic primary torsion dystonia and myoclonus-dystonia.
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Abstract
BACKGROUND Olfactory dysfunction is an established nonmotor feature of idiopathic Parkinson disease (PD), which may precede disease onset. Olfaction is likely disturbed in patients with PD with leucine-rich repeat kinase (LRRK2) G2019S mutations, although the degree of impairment is debated. It is also unclear whether mutation carriers who have not yet manifested with PD have olfactory disturbances. METHODS Thirty-one subjects with LRRK2 G2019S mutation-related PD (PD-manifesting carriers [PD-MC]), 30 subjects with PD without mutations (PD noncarriers [PD-NC]), 28 mutation carrier family members (nonmanifesting carriers [NMC]), and 46 controls completed the University of Pennsylvania Smell Identification Test (UPSIT). Generalized estimating equations were applied to determine whether olfactory score was associated with PD and LRRK2 mutation status. RESULTS As expected, having PD was associated with impaired olfaction regardless of LRRK2 mutation status. More importantly, however, impaired olfaction was increased overall in LRRK2 carriers both with and without PD, though the impairment was only present in a subset of NMCs. Compared to controls, the mean score was lower among NMC (difference = -3.518, p = 0.006), MC (difference = -7.677, p < 0.0001), and idiopathic PD (PD-NC) (difference = -13.810, p < 0.0001). Olfaction was better among MC (PD-MC) than non-LRRK2 PD (PD-NC) (difference = 6.13, p = 0.0012). Group differences from the continuous analysis were maintained in dichotomous analysis stratifying at 15th percentile for age and gender. CONCLUSION Olfaction is impaired in LRRK2 G2019S-mutation related PD, although less overall than other PD. Further, olfaction is impaired in a subset of LRRK2 NMC, suggesting that olfaction may be a marker for development of PD in this group, and that longitudinal studies are warranted.
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Evaluation of fentanyl buccal soluble film (FBSF) in opioid tolerant cancer patients with neuropathic breakthrough cancer pain (BTP). THE JOURNAL OF PAIN 2011. [DOI: 10.1016/j.jpain.2011.02.202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Cord blood telomere length, telomerase activity and inflammatory markers in pregnancies in women with diabetes or gestational diabetes. Diabet Med 2010; 27:1264-70. [PMID: 20950384 DOI: 10.1111/j.1464-5491.2010.03099.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS We tested the hypothesis that diabetes during pregnancy leads to chromosomal DNA damage and telomere attrition in the feto placental unit and cord blood, and provides evidence for intrauterine programming towards a senescent phenotype in the offspring. METHODS We obtained cord blood from pregnant women with pregestational Type 1 diabetes (n=26), Type 2 diabetes (n=20) or gestational diabetes (n=71), and control subjects without diabetes (n=45, n=76 and n=81, respectively) matched for maternal and gestational age. We measured cord blood mononuclear cell telomere length, telomerase activity (a reverse transcriptase that limits telomere attrition), and concentrations of insulin, high-sensitivity C-reactive protein (hs-CRP) and soluble intercellular adhesion molecule-1 (sICAM-1). RESULTS We found no significant differences between groups in cord blood telomere length in any nucleated cell type, or in hs-CRP or sICAM-1 concentrations, but telomerase activity was higher in cord blood from Type 1 (P<0.05) and gestational diabetes pregnancies (P<0.05), but not in Type 2 diabetes pregnancies. There were no significant relationships between glycaemic control, cord blood telomere length, telomerase activity or inflammatory markers in any group. CONCLUSIONS We found no difference in cord blood telomere length in pregnancies of women with diabetes compared with control subjects, but higher cord blood telomerase activity in Type 1 and gestational diabetes. This may reflect upregulated telomere reverse transcriptase in response to in utero oxidative DNA and telomere damage. These observations are relevant to the hypothesis that diabetes during pregnancy leads to in utero preprogramming towards senescence in the offspring.
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Abstract
Tuberculosis (TB) still poses a profound burden on global health, owing to significant morbidity and mortality worldwide. Although a fully functional immune system is essential for the control of Mycobacterium tuberculosis infection, the underlying mechanisms and reasons for failure in part of the infected population remain enigmatic. Here, whole-blood microarray gene expression analyses were performed in TB patients and in latently as well as uninfected healthy controls to define biomarkers predictive of susceptibility and resistance. Fc gamma receptor 1B (FCGRIB)was identified as the most differentially expressed gene, and, in combination with four other markers, produced a high degree of accuracy in discriminating TB patients and latently infected donors. We determined differentially expressed genes unique for active disease and identified profiles that correlated with susceptibility and resistance to TB. Elevated expression of innate immune-related genes in active TB and higher expression of particular gene clusters involved in apoptosis and natural killer cell activity in latently infected donors are likely to be the major distinctive factors determining failure or success in controlling M. tuberculosis infection. The gene expression profiles defined in this study provide valuable clues for better understanding of progression from latent infection to active disease and pave the way for defining predictive correlates of protection in TB.
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Impact of age and sex on mycobacterial immunity in an area of high tuberculosis incidence. Int J Tuberc Lung Dis 2010; 14:952-959. [PMID: 20626938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
SETTING The extent of immune reactivity measured by the tuberculin skin test (TST) and interferon-gamma (IFN-gamma) T-cell assays is usually not analysed. OBJECTIVE To determine the impact of age and sex on assay positivity and on the extent of reactivity of both TST and T-cell assays in young persons in an area of South Africa with high TB transmission. RESULTS Age had a strong impact on assay positivity for all seven immune phenotypes tested (P < 0.0007). Among positive responders, the extent of purified protein derivative (PPD) triggered IFN-gamma release (P < 0.003) was sensitive to age. ESAT-6 triggered IFN-gamma release (day 7, P = 0.03) and the frequency of PPD-specific IFN-gamma(+)CD4(+) (P = 0.03) and IFN-gamma(+)CD8(+) cells (P = 0.04) were weakly dependent on age. By contrast, the extent of TST induration was insensitive to age (P > 0.05), and sex had no significant impact on any phenotype measured (P > 0.05). The high proportion of positive responders in the 1-10 year age-group observed with long-term whole blood assays, but not with 3-day assays and TST, suggests that long-term whole blood assays may be confounded by bacille Calmette-Guérin vaccination in this age group. CONCLUSION There is a significant impact of age, but not sex, on different assays of immune reactivity in this high TB transmission setting.
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633 The contribution of dysregulated ribosomal gene transcription to malignant transformation. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71433-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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PVI-20 Comparison of two in-house methods of HBV genotyping with a commercial method and sequencing. J Clin Virol 2009. [DOI: 10.1016/s1386-6532(09)70169-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Spontaneous mid-trimester uterine rupture in a twin pregnancy. J OBSTET GYNAECOL 2008; 28:642-3. [PMID: 19003665 DOI: 10.1080/01443610802378124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Highly discordant T cell responses in individuals with recent exposure to household tuberculosis. Thorax 2008; 64:840-6. [PMID: 18682523 DOI: 10.1136/thx.2007.085340] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND There are limited data comparing interferon-gamma release assays (IGRAs) for the detection of Mycobacterium tuberculosis infection in highly endemic settings. METHODS A cross-sectional household contact study was conducted to measure the agreement of two IGRAs in relation to the tuberculin skin test (TST) to detect M tuberculosis infection and to assess the influence of M tuberculosis exposure and age. RESULTS In 82 individuals in household contact, 93% of children and 42% of adults had a high M tuberculosis contact score. The TST was positive in 78% of adults and 54% of children, the T-SPOT.TB was positive in 89% of children and 66% of adults and the QuantiFERON TB Gold (QTF) was positive in a similar proportion of adults and children (38.1% and 39.6%). In children there was poor agreement between the TST and T-SPOT.TB (kappa = -0.15) and the T-SPOT.TB and the QTF (kappa = -0.03), but good agreement between the TST and the QTF (kappa = 0.78) using 10 mm cut-off. In adults there was fair to moderate agreement between the TST and T-SPOT.TB (kappa = 0.38), the TST and QTF (kappa = 0.34) and T-SPOT.TB and QTF (kappa = -0.50). High levels of exposure to M tuberculosis were associated with at least a sevenfold odds of being T-SPOT.TB positive (95% CI 7.67 to 508.69) and a threefold odds of being QTF positive (95% CI 3.02 to 30.54). There was a significant difference in the magnitude of T-SPOT.TB early secretory antigenic target (ESAT)-6 and culture filtrate protein 10 kD (CFP-10) spot counts between adults and children. CONCLUSIONS The T-SPOT.TB may be more sensitive than the TST or QTF for detecting recent M tuberculosis infection in children. Differences between assays and the predictive utility of these findings for subsequent disease development should be prospectively assessed.
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Multidrug-resistant gram-negative bacteria among patients who require chronic hemodialysis. Clin J Am Soc Nephrol 2008; 3:752-8. [PMID: 18322047 DOI: 10.2215/cjn.04651107] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES Multidrug-resistant gram-negative bacteria are rapidly spreading throughout the world. The epidemiology of multidrug-resistant gram-negative bacteria in patients who require chronic hemodialysis has not been previously studied. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS A prospective cohort study of an outpatient hemodialysis unit was conducted. Serial surveillance cultures for multidrug-resistant gram-negative bacteria, vancomycin-resistant enterococci, and methicillin-resistant Staphylococcus aureus were collected from patients who were undergoing chronic hemodialysis. RESULTS Nineteen (28%) of the 67 enrolled patients were colonized with one or more antimicrobial-resistant bacteria at study enrollment. Eleven (16%), nine (13%), and three (5%) patients were colonized with multidrug-resistant gram-negative bacteria, vancomycin-resistant enterococci, and methicillin-resistant Staphylococcus aureus, respectively. Independent risk factors associated with harboring multidrug-resistant gram-negative bacteria at enrollment were residence in a long-term care facility and antibiotic exposure for > or = 7 d in the previous 3 mo. Twenty-two (40%) of 55 patients who had follow-up cultures acquired at least one antimicrobial-resistant bacterium. A total of 20, 15, and 13% of patients acquired multidrug-resistant gram-negative bacteria, vancomycin-resistant enterococci, and methicillin-resistant Staphylococcus aureus, respectively. Antibiotic exposure was the only independent risk factor for multidrug-resistant gram-negative bacteria acquisition. Endogenous multidrug-resistant gram-negative bacteria acquisition was detected among 69% of acquired multidrug-resistant gram-negative bacterial strains. CONCLUSIONS The prevalence and acquisition of multidrug-resistant gram-negative bacteria surpassed that of vancomycin-resistant enterococci and methicillin-resistant Staphylococcus aureus. Endogenous acquisition, as opposed to patient-to-patient spread, was the predominant mechanism of acquisition. Residence in a long-term care facility and antibiotic exposure may be important factors promoting the spread of multidrug-resistant gram-negative bacteria among this patient population.
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373: The Willingness of Patients With Non-Emergent Conditions Presenting to the Emergency Department to be Referred to a Same-Day Appointment at an Affiliated Urgent Access Clinic. Ann Emerg Med 2007. [DOI: 10.1016/j.annemergmed.2007.06.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Characterization of maleuric acid derivatives on transgenic human monoclonal antibody due to post-secretional modifications in goat milk. Biomed Chromatogr 2006; 20:843-56. [PMID: 16425344 DOI: 10.1002/bmc.603] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A fully human antibody to tumor necrosis factor-alpha was expressed in the mammary glands of transgenic goats. The goat expressed antibody (gAb) is heterogeneous and has several isoforms due to typical cellular post-translational modifications. In addition, one post-secretional modification on gAb was discovered by high-resolution cation exchange chromatography (CIEX). The presence of these variants in the final product was shown to be dependent upon the initial milk storage and traditional purification methodologies used. These observations allow for the development of new sample recovery and purification processes to eliminate these variants. Various enzymatic treatments were used to characterize different gAb heavy chain C-terminal lysine and sialic acid variants. In addition, an unknown derivative with the additional mass of 140 Da was found in transgenic gAb using mass spectrometry (MS). The modification sites were identified as the N-termini of gAb light chains and heavy chains using Q-TOF MS. Characterization of transgenic gAb isoforms was facilitated by utilizing different enzymes, CIEX and MS techniques. A maleuric acid modification on the N-terminal portion of gAb was shown to be consistent with the available data characterizing this new derivative of transgenic gAb isoforms in goat milk.
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Abstract
The aim of this study was to examine the influence of pre-pregnancy care and its effect on early glycaemic control and also the effect of glycaemic control in later pregnancy on risk of pre-eclampsia in women with type I diabetes. A prospective cohort study of 290 consecutive nonselected pregnancies in women with type I diabetes was performed from 1991 to 2002. We examined the relationship of monthly glycosylated haemoglobin (HbA1c) level, pre-pregnancy care, parity, diabetes duration, microvascular complications, maternal age, weight and smoking with risk of pre-eclampsia. Pre-eclampsia developed in 31/243 singleton births (12.8%). HbA1c level at 24 weeks was significantly increased in women with pre-eclampsia compared with women without pre-eclampsia (6.0 versus 5.6%, P= 0.017) and was, after nulliparity, the strongest independent predictor of increased risk (OR 1.65 for each 1% increase in HbA1c; P= 0.01). In contrast, there was no relationship between pre-pregnancy care or HbA1c level at booking and risk of pre-eclampsia.
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Abstract
AIM This is a review of the natural Campylobacter colonization and transmission among ruminant livestock in the dairy farm environment. METHODS AND RESULTS Using cultural detection methods and enumeration techniques the distribution of Campylobacter in ruminant animals at birth, on the farm, at slaughter and in the farm environment have been examined. Colonization and shedding rates are higher among young animals while patterns of shedding in adult animals may be seasonal. Stored and land-dispersed slurries provide a reservoir for scavenging birds and flies and a source for runoff. CONCLUSIONS The dairy farm plays a significant role in the dissemination of Campylobacter subtypes that can cause disease in the human community. SIGNIFICANCE AND IMPACT OF STUDY An understanding of the role of the dairy farm in the environmental cycle of Campylobacter is required in order to devise intervention strategies.
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Novel sulfur dioxide-induced epimerization of complexes of the type .eta.5-C5H5Fe*COLC*HRR'. J Am Chem Soc 2002. [DOI: 10.1021/ja00855a064] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Demonstration of controlled asymmetric induction in organoiron chemistry. Suggestions concerning the specification of chirality in pseudotetrahedral metal complexes containing polyhapto ligands. J Am Chem Soc 2002. [DOI: 10.1021/ja00855a063] [Citation(s) in RCA: 151] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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A comparative study of the chemistry of the diastereomers of .eta.5-C5H5FeCO[P(OPh)3]CHPhSiMe3. J Am Chem Soc 2002. [DOI: 10.1021/ja00448a022] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Application of electron spin resonance spectroscopy to problems of structure and conformation. XXIX. Aliphatic semidiones. XXIX. Cycloheptane-1,2-semidione. J Am Chem Soc 2002. [DOI: 10.1021/ja00840a048] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Clinical trials are prospective scientific studies involving human participants and form the basis for identifying new treatments for diseases like brain tumors. A clinical trial should be designed to provide definitive results for a study question. Therefore, investigators should understand the principles underlying the design, execution and analysis of clinical trials. In addition to the application of basic principles germane to the design of all clinical trials, studies in neuro-oncology also involve unique challenges in case definition, selection of endpoints and definition of response. This review begins with enumeration of the basic principles of clinical trial design including reduction of bias and variability, and concludes with a review of study design factors of particular relevance for neuro-oncology.
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Do HIV type 1 RNA levels provide additional prognostic value to CD4(+) T lymphocyte counts in patients with advanced HIV type 1 infection? AIDS Res Hum Retroviruses 2001; 17:1099-105. [PMID: 11522179 DOI: 10.1089/088922201316912709] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Our objective was to assess whether HIV-1 RNA levels provide additional prognostic information beyond CD4(+) T lymphocyte counts in the prediction of subsequent HIV-1 disease progression among patients with advanced HIV-1 disease. In a nested case-control study conducted in patients with baseline CD4(+) T lymphocyte counts < 300 cells/mm(3) and receiving nucleoside reverse transcriptase inhibitors, 102 patients who progressed to an AIDS-defining event or death were matched within 10 CD4(+) T lymphocyte cells/mm(3) to patients who did not progress. The relationship between plasma HIV-1 RNA levels and HIV-1 disease progression was studied using conditional logistic regression analysis, which adjusts for the matching by baseline CD4(+) T lymphocytes. We observed a 0.10 log(10) copies/ml difference in baseline HIV-1 RNA levels between cases and their matched controls (p = 0.027). The relative risk for HIV-1 disease progression increased with increasing baseline HIV-1 RNA levels (odds ratio [OR] for a 3-fold higher HIV-1 RNA level, 1.42; 95% confidence interval [CI], 1.08--1.86), and remained important when also controlling for clinical status at baseline and CD4(+) T lymphocytes at 2 months (p = 0.038). Higher baseline HIV-1 RNA levels were associated with HIV-1 disease progression among patients with a baseline CD4(+) T lymphocyte count of 100 cells/mm(3) or greater (OR, 1.80; 95% CI, 1.15--2.81), but not among patients with a baseline CD4(+) T lymphocyte count < 100 cells/mm(3) (OR, 1.09; 95% CI, 0.73--1.63). We concluded that HIV-1 RNA levels predict subsequent HIV-1 disease progression independent of CD4(+) T lymphocyte counts. The magnitude and importance of the prognostic information contained in the HIV-1 RNA levels appear to depend on the CD4(+) T lymphocyte counts.
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Use of pulsed-field gel electrophoresis and flagellin gene typing in identifying clonal groups of Campylobacter jejuni and Campylobacter coli in farm and clinical environments. Appl Environ Microbiol 2001; 67:1429-36. [PMID: 11282587 PMCID: PMC92751 DOI: 10.1128/aem.67.4.1429-1436.2001] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Although campylobacters have been isolated from a wide range of animal hosts, the association between campylobacters isolated from humans and animals in the farm environment is unclear. We used flagellin gene typing and pulsed-field gel electrophoresis (PFGE) to investigate the genetic diversity among isolates from animals (cattle, sheep, and turkey) in farm environments and sporadic cases of campylobacteriosis in the same geographical area. Forty-eight combined fla types were seen among the 315 Campylobacter isolates studied. Six were found in isolates from all four hosts and represented 50% of the total number of isolates. Seventy-one different SmaI PFGE macrorestriction profiles (mrps) were observed, with 86% of isolates assigned to one of 29 different mrps. Fifty-seven isolates from diverse hosts, times, and sources had an identical SmaI mrp and combined fla type. Conversely, a number of genotypes were unique to a particular host. We provide molecular evidence which suggests a link between campylobacters in the farm environment with those causing disease in the community.
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Combination nucleoside analog reverse transcriptase inhibitor(s) plus nevirapine, nelfinavir, or ritonavir in stable antiretroviral therapy-experienced HIV-infected children: week 24 results of a randomized controlled trial--PACTG 377. Pediatric AIDS Clinical Trials Group 377 Study Team. AIDS Res Hum Retroviruses 2000; 16:1113-21. [PMID: 10954886 DOI: 10.1089/088922200414956] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
One hundred eighty-one antiretroviral-experienced, protease inhibitor-naive, clinically stable HIV-infected children between 4 months and 17 years of age were randomly assigned to receive one of four combination regimens to evaluate the change in plasma HIV RNA, safety, and tolerance when changing antiretroviral therapy to a protease inhibitor-containing combination regimen. All four regimens contained stavudine; in addition children received nevirapine plus ritonavir, lamivudine plus nelfinavir, nevirapine plus nelfinavir, or lamivudine plus nevirapine plus nelfinavir. Twelve additional children chose to receive stavudine plus lamivudine plus nelfinavir, with nelfinavir given bid, rather than tid as for the main regimens. Overall, 51% (89/176; 95% CI 43-58%) of the children on the randomized portion of the study had an HIV RNA response (< or =400 copies/ml) on at least two of the three HIV RNA determinations taken at Weeks 8, 12, and 16. At Week 24 the proportion of children with an HIV RNA response still on initial therapy was 47% (83/176; 95% CI 40-55%) and ranged from 41 to 61% for the four randomized treatment arms. Rash was frequently seen (27%) on the treatment arms containing nevirapine. At Week 24 64% (7/11, 95% CI 31-89%) of the children on the bid nelfinavir combination regimen were still on initial therapy with an HIV RNA response as compared with 46% (23/50; 95% CI 32-61%) on the corresponding tid nelfinavir combination regimen. A change in antiretroviral therapy to a protease inhibitor-containing regimen was associated with a virological response rate of approximately 50% for this patient population.
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Activity of antibiotics used in human medicine for Campylobacter jejuni isolated from farm animals and their environment in Lancashire, UK. J Antimicrob Chemother 2000; 46:303-6. [PMID: 10933658 DOI: 10.1093/jac/46.2.303] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A retrospective study of 96 Campylobacter jejuni isolated from farm animals and the environment showed that most were less susceptible than the NCTC type strain to nalidixic acid (MICs 4-32 mg/L), ciprofloxacin (MICs 1-2 mg/L) and erythromycin (MICs 16-64 mg/L), but had similar susceptibility to tetracycline (MICs 4-8 mg/L) and kanamycin (MICs 4-8 mg/L). None had the high MICs of ciprofloxacin (>32 mg/L) or erythromycin (1024 mg/L) typically associated with clinical resistance in this species. Some farms used antimicrobial agents, but there was no obvious association between the use of agents and the susceptibility of the isolates.
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Immunologic response to combination nucleoside analogue plus protease inhibitor therapy in stable antiretroviral therapy-experienced human immunodeficiency virus-infected children. J Infect Dis 2000; 182:96-103. [PMID: 10882586 DOI: 10.1086/315672] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/1999] [Revised: 02/02/2000] [Indexed: 11/03/2022] Open
Abstract
The response of 40 immunologic parameters was studied for 147 clinically stable, protease inhibitor-naive, human immunodeficiency virus (HIV)-infected children aged 2-17 years when antiretroviral therapy was changed to either a dual nucleoside analogue regimen or a protease inhibitor-containing regimen. Immunologic response to therapy, as measured by lymphocyte subsets, 3-color flow cytometric measures, and lymphoproliferative assays, were investigated for changes in weeks 44 and 48. The most significant changes after baseline that were associated with the administration of a protease inhibitor-containing regimen were seen for percentages of CD8(+)/CD38(+)/HLA-DR(+), CD8(+)/CD95(+)/CD28(-), and CD8. The percentages of CD8(+)/CD38(+)/HLA-DR(+) and CD8(+)/CD95(+)/CD28(-) decreased from baseline medians of 33% and 46% to medians of 18% and 30% at week 44 (P<.0001 for both). Median CD4 cell count increased 168 cells/microL (from 694 cells/microL to 862 cells/microL; P=.02) by week 48 in this clinically stable population. Changes in lymphoproliferative responses to HIV antigens and recall antigens did not increase over time and between groups.
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