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MA11.05 The Blood Proteome of Imminent Lung Cancer. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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ChAdOx1 nCoV-19 (AZD1222) vaccine candidate significantly reduces SARS-CoV-2 shedding in ferrets. NPJ Vaccines 2021; 6:67. [PMID: 33972565 PMCID: PMC8110954 DOI: 10.1038/s41541-021-00315-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/12/2021] [Indexed: 01/05/2023] Open
Abstract
Vaccines against SARS-CoV-2 are likely to be critical in the management of the ongoing pandemic. A number of candidates are in Phase III human clinical trials, including ChAdOx1 nCoV-19 (AZD1222), a replication-deficient chimpanzee adenovirus-vectored vaccine candidate. In preclinical trials, the efficacy of ChAdOx1 nCoV-19 against SARS-CoV-2 challenge was evaluated in a ferret model of infection. Groups of ferrets received either prime-only or prime-boost administration of ChAdOx1 nCoV-19 via the intramuscular or intranasal route. All ChAdOx1 nCoV-19 administration combinations resulted in significant reductions in viral loads in nasal-wash and oral swab samples. No vaccine-associated adverse events were observed associated with the ChAdOx1 nCoV-19 candidate, with the data from this study suggesting it could be an effective and safe vaccine against COVID-19. Our study also indicates the potential for intranasal administration as a way to further improve the efficacy of this leading vaccine candidate.
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In Vitro and In Vivo Characterization of a Pigeon Paramyxovirus Type 1 Isolated from Domestic Pigeons in Victoria, Australia 2011. Viruses 2021; 13:v13030429. [PMID: 33800329 PMCID: PMC7998256 DOI: 10.3390/v13030429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/03/2021] [Accepted: 03/03/2021] [Indexed: 12/03/2022] Open
Abstract
Significant mortalities of racing pigeons occurred in Australia in late 2011 associated with a pigeon paramyxovirus serotype 1 (PPMV-1) infection. The causative agent, designated APMV-1/pigeon/Australia/3/2011 (P/Aus/3/11), was isolated from diagnostic specimens in specific pathogen free (SPF) embryonated eggs and was identified by a Newcastle Disease virus (NDV)-specific RT-PCR and haemagglutination inhibition (HI) test using reference polyclonal antiserum specific for NDV. The P/Aus/3/11 strain was further classified as PPMV-1 using the HI test and monoclonal antibody 617/161 by HI and phylogenetic analysis of the fusion gene sequence. The isolate P/Aus/3/11 had a slow haemagglutin-elution rate and was inactivated within 45 min at 56 °C. Cross HI tests generated an R value of 0.25, indicating a significant antigenic difference between P/Aus/3/11 and NDV V4 isolates. The mean death time (MDT) of SPF eggs infected with the P/Aus/3/11 isolate was 89.2 hr, characteristic of a mesogenic pathotype, consistent with other PPMV-1 strains. The plaque size of the P/Aus/3/11 isolate on chicken embryo fibroblast (CEF) cells was smaller than those of mesogenic and velogenic NDV reference strains, indicating a lower virulence phenotype in vitro and challenge of six-week-old SPF chickens did not induce clinical signs. However, sequence analysis of the fusion protein cleavage site demonstrated an 112RRQKRF117 motif, which is typical of a velogenic NDV pathotype. Phylogenetic analysis indicated that the P/Aus/3/11 isolate belongs to a distinct subgenotype within class II genotype VI of avian paramyxovirus type 1. This is the first time this genotype has been detected in Australia causing disease in domestic pigeons and is the first time since 2002 that an NDV with potential for virulence has been detected in Australia.
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In vitro characterisation of SARS-CoV-2 and susceptibility of domestic ferrets (Mustela putorius furo). Transbound Emerg Dis 2021; 69:297-307. [PMID: 33400387 DOI: 10.1111/tbed.13978] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/21/2020] [Accepted: 01/03/2021] [Indexed: 12/21/2022]
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is an emerging virus that has caused significant human morbidity and mortality since its detection in late 2019. With the rapid emergence has come an unprecedented programme of vaccine development with at least 300 candidates under development. Ferrets have proven to be an appropriate animal model for testing safety and efficacy of SARS-CoV-2 vaccines due to quantifiable virus shedding in nasal washes and oral swabs. Here, we outline our efforts early in the SARS-CoV-2 outbreak to propagate and characterize an Australian isolate of the virus in vitro and in an ex vivo model of human airway epithelium, as well as to demonstrate the susceptibility of domestic ferrets (Mustela putorius furo) to SARS-CoV-2 infection following intranasal challenge.
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Abstract
In 2018, a 15-year-old female adolescent in Australia was infected with swine influenza A(H3N2) variant virus. The virus contained hemagglutinin and neuraminidase genes derived from 1990s-like human seasonal viruses and internal protein genes from influenza A(H1N1)pdm09 virus, highlighting the potential risk that swine influenza A virus poses to human health in Australia.
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Locally Acquired Human Infection with Swine-Origin Influenza A(H3N2) Variant Virus, Australia, 2018. Emerg Infect Dis 2020. [DOI: 10.3201/2601.191144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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The determinants of C. difficile infection in long-term care facilities: a portrait of patient- and facility-level factors across 90 care regions in the veterans affairs health care system. Antimicrob Resist Infect Control 2015. [PMCID: PMC4474708 DOI: 10.1186/2047-2994-4-s1-o36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Cost analysis of an active surveillance strategy for Clostridium difficile using an agent-based simulation. Antimicrob Resist Infect Control 2015. [PMCID: PMC4474614 DOI: 10.1186/2047-2994-4-s1-p21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abstract
In March 2014, avian influenza in poultry in Laos was caused by an emergent influenza A(H5N6) virus. Genetic analysis indicated that the virus had originated from reassortment of influenza A(H5N1) clade 2.3.2.1b, variant clade 2.3.4, and influenza A(H6N6) viruses that circulate broadly in duck populations in southern and eastern China.
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Recurrence and mortality following treatment for Clostridum difficile infection with metronidazole or vancomycin. Antimicrob Resist Infect Control 2015. [PMCID: PMC4474898 DOI: 10.1186/2047-2994-4-s1-o38] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Health Economic Evaluation Comparing Iv Iron Ferric Carboxymaltose, Iron Sucrose and Blood Transfusion For Treatment of Patients with Iron Deficiency Anemia (Ida) in Singapore. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A784. [PMID: 27202914 DOI: 10.1016/j.jval.2014.08.395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Inpatient costs, mortality and 30-day re-admission in patients with central-line-associated bloodstream infections. Clin Microbiol Infect 2014; 20:O318-24. [DOI: 10.1111/1469-0691.12407] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 09/04/2013] [Accepted: 09/19/2013] [Indexed: 11/27/2022]
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Recent emergence and spread of an Arctic-related phylogenetic lineage of rabies virus in Nepal. PLoS Negl Trop Dis 2013; 7:e2560. [PMID: 24278494 PMCID: PMC3836727 DOI: 10.1371/journal.pntd.0002560] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 10/14/2013] [Indexed: 12/25/2022] Open
Abstract
Rabies is a zoonotic disease that is endemic in many parts of the developing world, especially in Africa and Asia. However its epidemiology remains largely unappreciated in much of these regions, such as in Nepal, where limited information is available about the spatiotemporal dynamics of the main etiological agent, the rabies virus (RABV). In this study, we describe for the first time the phylogenetic diversity and evolution of RABV circulating in Nepal, as well as their geographical relationships within the broader region. A total of 24 new isolates obtained from Nepal and collected from 2003 to 2011 were full-length sequenced for both the nucleoprotein and the glycoprotein genes, and analysed using neighbour-joining and maximum-likelihood phylogenetic methods with representative viruses from all over the world, including new related RABV strains from neighbouring or more distant countries (Afghanistan, Greenland, Iran, Russia and USA). Despite Nepal's limited land surface and its particular geographical position within the Indian subcontinent, our study revealed the presence of a surprising wide genetic diversity of RABV, with the co-existence of three different phylogenetic groups: an Indian subcontinent clade and two different Arctic-like sub-clades within the Arctic-related clade. This observation suggests at least two independent episodes of rabies introduction from neighbouring countries. In addition, specific phylogenetic and temporal evolution analysis of viruses within the Arctic-related clade has identified a new recently emerged RABV lineage we named as the Arctic-like 3 (AL-3) sub-clade that is already widely spread in Nepal. Rabies is endemic in most Asian countries and represents a serious public health issue, with an estimated 31,000 people dying each year of this disease. The majority of human cases are transmitted by domestic dogs, which act as the principal reservoir host and vector. However, molecular epidemiology and evolutionary dynamics of the main etiological agent, the rabies virus (RABV), remains largely unappreciated in some regions such as in Nepal. Based on a subset of 24 new Nepalese isolates collected from 2003 to 2011 and representative RABV strains at a global scale, phylogenetic analysis based on the complete nucleoprotein and glycoprotein genes sequences revealed the presence of a surprising wide genetic diversity of RABV circulating in this country. The presence of three different co-existing phylogenetic groups was identified: an Indian subcontinent clade and two different Arctic-like sub-clades within the Arctic-related clade, namely Arctic-like (AL)-1, lineage a (AL-1a), and AL-3. Among these clusters, the AL-3 sub-clade appears as the major Nepalese phylogroup which emerged relatively recently in this country, within the last 30 years. These data has raised some concerns about the exchange of RABV between different countries, and provided key elements for implementation of effective control measures of rabies in Nepal.
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Flight endurance and heating rate vary with both latitude and habitat connectivity in a butterfly species. OIKOS 2012. [DOI: 10.1111/j.1600-0706.2012.20947.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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P02.11. Adherence and satisfaction with the experimental mind and body intervention in the LIFE weight loss maintenance study. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012. [PMCID: PMC3373907 DOI: 10.1186/1472-6882-12-s1-p67] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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P1 Quality of life related to COPD and occupational exposures. Thorax 2010. [DOI: 10.1136/thx.2010.150961.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Experimental studies of the role of the little raven (Corvus mellori) in surveillance for West Nile virus in Australia. Aust Vet J 2010; 88:204-10. [PMID: 20553567 DOI: 10.1111/j.1751-0813.2010.00582.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To study the potential role of an Australian corvid, the little raven (Corvus mellori), in the surveillance for exotic West Nile virus (WNV) in Australia. METHOD In a series of trials, little ravens were infected with WNV (strain 4132 New York 1999) and Kunjin virus (strain K42886) by the intramuscular route. They were observed for 20 days during which blood and swab samples were taken for virus isolation. Tissue samples were taken from ravens humanely killed during the acute infection period, and at the termination of the trials, for virus isolation, histopathology and immunohistochemistry. RESULTS Ravens infected with WNV became mildly ill, but all recovered and seroconverted. Blood virus titres peaked around 3 to 4 days after inoculation at levels between 10(3.0) to 10(7.5) plaque forming units/mL. Virus or viral antigen was detected in spleen, liver, lung, kidney, intestine, testis and ovary by virus isolation and/or immunohistochemistry. WNV was detected in oral and cloacal swabs from 2 to 7 days post inoculation. The molecular and pathogenic characteristics of the inocula were consistent with them being of high virulence, as expected for this isolate. Ravens infected with Kunjin virus developed viraemia and seroconverted, although they did not develop disease. CONCLUSIONS Little ravens do not develop severe disease in response to virulent WNV infection and for this reason may not be important sentinel hosts in the event of an outbreak of WNV, as in North America. However, as they have relatively high viraemias, they may be able to support virus cycles.
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[Mediators of inflammation's clinical relevance in multiple myeloma]. REVUE MEDICALE DE LIEGE 2008; 63:554-558. [PMID: 19051511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Multiple myeloma is a blood disease characterized amongst other things by at least 10% plasmocytes in the bone marrow. The illness is always lethal. The Salmon & Durie classification is well established to evaluate the prognosis. Other parameters are under study in order to supplement it, among them mediators of inflammation such as CRP and LDH. A 5-year study assessing these 2 parameters and their clinical relevance is presented.
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Effective prevention of sports injuries: a model integrating efficacy, efficiency, compliance and risk-taking behaviour. Br J Sports Med 2008; 42:648-52. [PMID: 18400875 DOI: 10.1136/bjsm.2008.046441] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In 1992 van Mechelen et al published a "sequence of prevention model" based on a four-step process. This model has been widely used to implement preventive measures in response to sports injuries. However, the execution of this model has been shown to lack validity in determining the success of a preventive measure. A modified model has therefore been proposed which incorporates additional steps that enable the inclusion of external factors with a significant effect on the outcome of a prevention intervention. This expansion of van Mechelen's model leads to a more global model in which the compliance level and risk-taking behaviour of the individual and the assessment of efficiency of the stakeholders have a key influence on the preventive measure. This model gives a better insight into the different processes in injury prevention that can be used by clinicians, coaches and managers to decide whether to implement a preventive measure programme.
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Efficacy and safety of denileukin diftitox (Dd) in a phase III, double-blind, placebo-controlled study of CD25+ patients with cutaneous T-cell lymphoma (CTCL). J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.8026] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
8026 Background: ONTAK®(Dd), a genetically engineered fusion protein combines the enzymatically active domain of diphtheria toxin with the sequence of interleukin-2 (IL-2), designed to target IL-2 receptor expressing malignancies. Dd received FDA accelerated approval for the treatment of CTCL in patients with the CD25 component of the IL-2 receptor. Methods: The confirmatory placebo- controlled L4389–11 phase III trial evaluated 9 and 18μg/kg/d Dd in 144 patients with CD25(+) CTCL. Patients (=3 prior treatments, stages Ia - III) received Dd or placebo IV for up to 8 cycles, consisting of Dd once daily for 5 days every 3 weeks. Tumor burden in skin, blood and lymph nodes and a physician's global (PGA) were assessed relative to baseline and before every treatment cycle beginning with cycle 2. Confirmation of tumor response required two more consecutive cycles (3 observations). Investigator assessments were ratified by an independent Drug Evaluation Review Committee. Results: Initial analysis of activity and benefit shown below. Both Dd treatment arms were greatly superior to placebo in a dose dependent fashion. Population demographics were the same across treatment arms (median age 59 years, 55% male). Randomization was stratified by disease status at baseline, 67% were = stage IIa, 33% were =stage IIb. Response between stage groups within each arm did not differ significantly. Many responses were confirmed after 5 or more cycles. AEs were similar to those in previous Dd studies. The only significantly different Grade 3/4 adverse event was nausea (2% in Placebo and 15% in 18μg/kg/d). No differences in serious adverse events among treatment arms were observed. The frequency of AEs and SAEs markedly decrease after the first two cycles of treatment. Conclusions: This is the largest randomized, placebo controlled trial conducted in CTCL, providing clear evidence for efficacy and clinical benefit for Dd. No significant financial relationships to disclose. [Table: see text]
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Test-retest reliability of measuring the passive stiffness of the Achilles tendon using ultrasonography. ISOKINET EXERC SCI 2004. [DOI: 10.3233/ies-2004-0172] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
BACKGROUND Hand dermatitis is an eczematous inflammation of the hands that is related to occupation or to routine activities. It often becomes chronic, and in some patients may become severe and disabling. Topical corticosteroids are effective treatment, particularly for milder forms, but they often lose effectiveness with time and can produce skin atrophy. OBJECTIVES To evaluate bexarotene gel topical therapy for safety, tolerability and efficacy in patients with chronic hand dermatitis. METHODS A phase I-II open-label randomized clinical study of bexarotene gel, alone and in combination with a low- and a mid-potency steroid, was conducted in 55 patients with chronic severe hand dermatitis at two academic clinics. RESULTS Patients using bexarotene gel monotherapy reached a 79% response rate for > or = 50% clinical improvement and a 39% response rate for > or = 90% clearance of hands. Adverse events possibly related to treatment in all patients were stinging or burning (15%), flare of dermatitis (16%) and irritation (29%). Thirteen patients (24%) withdrew early, including two for related adverse events and five for inadequate response. CONCLUSIONS Bexarotene gel appears to be safe, tolerated by most patients, with useful therapeutic activity in chronic severe hand dermatitis.
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Relationship of the Family Environment to Children's Involvement in Bully/Victim Problems at School. J Youth Adolesc 2002. [DOI: 10.1023/a:1020207003027] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Accidents don't just happen! BRITISH JOURNAL OF PERIOPERATIVE NURSING : THE JOURNAL OF THE NATIONAL ASSOCIATION OF THEATRE NURSES 2001; 11:342-5. [PMID: 11892573 DOI: 10.1177/175045890101100801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Risk management is a systematic approach to monitoring processes and systems to ensure that patients receive their care in a safe environment. The NHS management executive (1993) states that risk management should not lead to defensive practices but should be used to pinpoint deficiencies in a positive way, using mistakes as an opportunity for learning and to eliminate errors in the future.
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Anti-bullying interventions at school: aspects of programme adaptation and critical issues for further programme development. Health Promot Int 2001; 16:155-67. [PMID: 11356754 DOI: 10.1093/heapro/16.2.155] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Recently, a growing interest in problems at school of peer aggression and victimization was observed. As a result, intervention strategies appropriate for this kind of problem were required. The Norwegian anti-bullying intervention that was developed and evaluated by Olweus (1992) in the region of Bergen was considered to be a good model for other countries to implement interventions against peer aggression within the school environment. It was therefore adapted to the educational settings of other countries. This paper aims to discuss the adaptation processes of the Bergen anti-bullying programme and to give guidelines to advance further programme development. For this, the DFE Sheffield Bullying Project (Smith and Sharp, 1994), the Anti-bullying Intervention in Toronto schools (Pepler et al., 1994) and the Flemish anti-bullying project (Stevens and Van Oost, 1994) were considered in the analyses. Discussion of the adaptation processes of the Bergen model programme revealed that the adapted interventions largely succeeded in incorporating the core components of the Bergen model programme, taking into account the characteristics of the implementation environment. This suggests that for bully/victim interventions, the dilemma of programme fidelity and programme adaptation could be solved adequately. However, from a health promotion perspective, some critical issues for programme improvement were observed. Three suggestions for change were made, indicating that anti-bullying actions at schools may benefit from: (i) a clear overview of the learning objectives, specified per target population; (ii) more attention to parental involvement and family interventions; and (iii) additional information about the adoption processes of the anti-bullying interventions within schools.
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Prenatal care needs, availability, accessibility, use, and satisfaction: a comparison of military women within and outside the continental United States. Mil Med 2001; 166:443-8. [PMID: 11370210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023] Open
Abstract
This article presents the results of a survey distributed to military women within and outside the continental United States (CONUS and OCONUS) who had received prenatal care and delivered at one of six Army, Navy, or Air Force military facilities. This comparative descriptive study was undertaken to determine from the mothers' perspective (1) their needs, availability, accessibility, use, satisfaction, and preferences for prenatal care services, and (2) if prenatal care and birth outcomes were significantly different for CONUS versus OCONUS women. Both groups reported a high degree of satisfaction with services, clinics/offices, and health care staff. Significant group differences were reported in transportation, length of travel time, and cost of traveling, with the CONUS group reporting greater problems with each. For both groups, quality and consistency of health care were the two most important factors in their preference of provider. More than 20% of the mothers reported receiving no information on some of the common concerns of pregnancy. There were no significant group differences with regard to infant birth weight or length of hospital stay.
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Past violence and substance use disorder and subsequent violence towards others: six year analysis of the Assaulted Staff Action Program (ASAP). INTERNATIONAL JOURNAL OF EMERGENCY MENTAL HEALTH 2001; 2:241-7. [PMID: 11217155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Recent research has begun to document evidence of associations between past violence toward others, untreated personal victimization, and substance use disorder and later acts of violence toward others. This appears true for many types of individuals, including psychiatric patients who have been victims of violence. This six-year retrospective study sought to evaluate these possible associations in assaultive psychiatric patients. Data were gathered in the context of the Assaulted Staff Action Program (ASAP), a crisis intervention program for staff victims of patient assault. Both histories of violence (violence toward others and/or personal victimization) and substance use disorder in assaultive psychiatric patients were individually and jointly examined and found to be associated with subsequent assaults by these patients. Increased levels of both past violence toward others, personal victimization, and substance use disorder were associated with the largest increased frequency of subsequent assault. The implications and possible links to emergency mental health services are discussed [International Journal of Emergency Mental Health, 2(4), 241-247].
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Topical treatment of cutaneous lesions of acquired immunodeficiency syndrome-related Kaposi sarcoma using alitretinoin gel: results of phase 1 and 2 trials. ARCHIVES OF DERMATOLOGY 2000; 136:1461-9. [PMID: 11115156 DOI: 10.1001/archderm.136.12.1461] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVE To evaluate the efficacy and safety of topical alitretinoin gel (9-cis-retinoic acid [LGD1057], Panretin gel; Ligand Pharmaceuticals, Inc, San Diego, Calif) in cutaneous Kaposi sarcoma (KS). DESIGN Open-label, within-patient, controlled, dose-escalating phase 1 and 2 clinical trials. In all patients, 1 or more cutaneous KS lesions were treated with alitretinoin gel, and at least 2 other lesions served as untreated controls for up to 16 weeks. Alitretinoin (0.05% or 0.1% gel) was applied twice daily for the first 2 weeks and up to 4 times daily thereafter, if tolerated. SETTING Nine academic clinical centers. PATIENTS One hundred fifteen patients with biopsy-proven acquired immunodeficiency syndrome (AIDS)-related KS. MAIN OUTCOME MEASURES AIDS Clinical Trials Group response criteria. RESULTS Statistically significant clinical responses were observed in 31 (27%) of 115 patients for the group of treated index lesions compared with 13 (11%) for the group of untreated control lesions (P<.001). Responses occurred with low CD4(+) lymphocyte counts (<200 cells/microL) and in some patients with refractory response to previous systemic anti-KS therapy. The incidence of disease progression was significantly lower for treated index lesions compared with untreated control lesions (39/115 [34%] vs 53/115 [46%]; P =.02). Alitretinoin gel generally was well tolerated, with 90% of treatment-related adverse events confined to the application site and only mild or moderate in severity. CONCLUSIONS Alitretinoin gel has significant antitumor activity as a topical treatment for AIDS-related KS lesions, substantially reduces the incidence of disease progression in treated lesions, and is generally well tolerated.
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Exploration of facilitators and barriers to prenatal care among military women. NURSE PRACTITIONER FORUM 2000; 11:171-7. [PMID: 11220048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Early and regular prenatal care has been shown to decrease the incidence of adverse pregnancy outcomes; however, little research has examined it experientially from the mother's perspective. The purpose of this qualitative study was to explore the experience of prenatal care from the military mother's perspective. Using purposive sampling, 16 women who had recently given birth were interviewed. The data were analyzed using a qualitative descriptive research methodology to elicit categories of substantive concepts, ideas, or themes. Data explored in this study included availability, use and satisfaction with prenatal care services, and barriers, preferences, and recommendations.
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Bullying in Flemish schools: an evaluation of anti-bullying intervention in primary and secondary schools. BRITISH JOURNAL OF EDUCATIONAL PSYCHOLOGY 2000; 70 ( Pt 2):195-210. [PMID: 10900778 DOI: 10.1348/000709900158056] [Citation(s) in RCA: 134] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND The positive of the Norwegian anti-bullying programme (Olweus, 1992) stimulated other countries to tackle bully/victim problems. However, outcome studies found rather low levels of effect or even inconsistent results. AIMS The purpose of the present study was to evaluate behavioural effectiveness of a school-based anti-bullying approach within Flemish schools. In addition, specific attention was given to the relationship between outcome findings and external support. SAMPLE A total of 18 schools, comprising 1104 primary and secondary school children were recruited for this study. Students ranged in age from 10 to 16 years. METHOD For this study, an experimental pre-test/post-test design was used which included a control group. Three groups were established. The first group, Treatment with Support, involved students from schools that implemented a school-based anti-bullying intervention with additional support from the research group. The second group, Treatment without Support, also involved students from schools that implemented a school-based anti-bullying programme. However, in contrast with those falling under the first condition, this group of schools could not appeal to the research group for additional help. The last group involved students from schools that did not implement the anti-bullying programme and served as a Control condition. Repeated measures analyses of variance were carried out. RESULTS The findings regarding the effects of the school-based anti-bullying intervention programme on the extent of bullying and victimisation showed a mixed pattern of positive changes in primary schools and zero outcomes in secondary schools. The findings regarding the effects of external support revealed limited outcomes. CONCLUSIONS The outcomes of the evaluation study confirm that a school-based anti-bullying intervention strategy can be effective in reducing problems with bullying, especially within primary schools. It was argued that the developmental characteristics of secondary school students interfered with the programme outcomes. In addition, the findings revealed no extra effects of specific training sessions.
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Abstract
This study aimed to evaluate the effect of an anti-bullying intervention programme on peers' attitudes towards bullying and their attempts to solve bully/victim conflicts. An experimental pre-test/post-test design with a control group was used. For secondary school students, positive outcomes were observed at post-test 1 on attitudes and on actual rates of intervention. However, the effects had disappeared at post-test 2. For primary school students, significant differences were found at post-test 2, showing a smaller decline in seeking teacher's help and in heightening students' support for victims. Students' competence to solve bully/victim problems in relation to their general pro-social development is discussed.
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Abstract
Numerous studies have used human chorionic gonadotrophin (HCG) administration to study the response of the primate ovary to gonadotrophin stimulation. These studies are generally performed in the luteal phase with very few studies of the follicular phase. We have studied the effect of both HCG and gonadotrophin releasing hormone (GnRH) agonist administered at the early follicular phase in normally cycling baboons (Papio cynocephalus). Five baboons were treated with increasing doses of HCG for 5 consecutive days starting on day 1 of the cycle and three untreated baboons served as controls. Follicular and luteal phase lengths were determined and serum samples were assayed for progesterone, oestradiol and 17alpha-OH progesterone. In a separate study, six baboons were treated with GnRH agonist (WY-40972) on days 2-6 of the cycle and saline-treated baboons served as controls (n = 5). Mean peak progesterone concentrations (+/- SE) during the treatment interval were 3.88+/-0.56 ng/ml in HCG-treated baboons compared to 0.19+/-0.07 ng/ml in controls (P < 0.001). A similar significant increase (P < 0.001) in serum 17alpha-OH progesterone concentrations was also observed (6.13+/-1.12 ng/ml versus 1.13+/-0.49 ng/ml). In association with the increase in luteal steroids there was also a significant prolongation of menstrual cycle length from 32.7+/-1.2 days in controls to 46.8+/-4.9 days in HCG-treated baboons (P < 0.05), which involved prolongation of the follicular phase (16.7+/-1.2 days to 29.0+/-4.6 days; P < 0.05) with no difference in luteal phase length or progesterone concentrations. In GnRH agonist-treated baboons, mean (+/- SE) cycle length was prolonged to 46.3+/-1.6 days and in saline-treated controls was 32.8+/-0.8 days (P < 0.001), again this was completely represented by the change in follicular phase length, from 13.4+/-0.7 days in controls to 27.2+/-2.1 days in agonist-treated baboons (P < 0.001). In contrast, there was no significant difference in luteal phase length between these two groups (19.4+/-0.7 versus 19.2+/-1.0 days). The prolongation of the follicular phase was accompanied by significant increases in both progesterone (P < 0.01) and oestradiol (P < 0.01) during GnRH agonist treatment above control concentrations. Luteal phase concentrations of these hormones were not different from controls. These results demonstrate the previously unreported finding that gonadotropin stimulation will rescue the corpus luteum in the next follicular phase.
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Maternal acceptability of a dietary intervention designed to lower children's intake of saturated fat and cholesterol: the Dietary Intervention Study in Children (DISC). JOURNAL OF THE AMERICAN DIETETIC ASSOCIATION 1998; 98:31-4. [PMID: 9434647 DOI: 10.1016/s0002-8223(98)00010-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE This report examined the acceptability to mothers of a dietary educational and behavioral intervention for preadolescent children with elevated levels of serum low-density lipoprotein cholesterol (LDL-C) who were enrolled in the Dietary Intervention Study in Children (DISC). DESIGN DISC is a randomized, controlled clinical trial. Subjects were randomly assigned to either an intervention or usual-care (control) group. SUBJECTS/SETTING To be eligible for the study, participants were required to have the average of 2 fasting LDL-C values fall between the 80th and 98th sex-specific percentiles. Three hundred thirty-four 8-to 10-year-old children and their families were randomly assigned to an intervention group, and 329 were assigned to a usual-care (control) group. This study examined data from 232 subjects in the intervention group. Data were collected at 6 intervention sites around the United States. INTERVENTION Those assigned to the intervention group participated in a multidisciplinary dietary intervention that included a series of group and individual sessions over a 3-year period. Children and their caretakers were taught to follow a nutritionally adequate diet that was low in total fat, saturated fat, and cholesterol and high in polyunsaturated fat. MAIN OUTCOME MEASURES Three nonconsecutive 24-hour diet recalls were collected at baseline and at 1 year by trained and certified dietitians. A questionnaire designed to assess diet acceptability was administered at months 4, 8, 11, and 15. Demographic measures were collected at the onset of the study. STATISTICAL ANALYSIS PERFORMED Statistical procedures included factor analysis and regression analysis. RESULTS Regression analysis suggested that perceived effectiveness of the dietary intervention and mothers' having few concerns about disadvantages of the diet were significantly related to higher overall fat intake in children in one-parent families. Maternal willingness to implement the diet was significantly related to lower saturated fat intake. APPLICATIONS/CONCLUSIONS In attempts to change eating behavior of children, interest and cooperation of the parents are essential to achieving successful results. These analyses further suggest that maternal acceptability translates into willingness to implement the diet and may facilitate changes that are associated with reduced saturated fat intake in children.
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Effects of diet and sexual maturation on low-density lipoprotein cholesterol during puberty: the Dietary Intervention Study in Children (DISC). Circulation 1997; 96:2526-33. [PMID: 9355889 DOI: 10.1161/01.cir.96.8.2526] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND The Dietary Intervention Study in Children (DISC) is a multicenter, randomized, controlled clinical trial designed to examine the efficacy and safety of a dietary intervention to reduce serum LDL cholesterol (LDL-C) in children with elevated LDL-C. METHODS AND RESULTS The effects of dietary intake of fat and cholesterol and of sexual maturation and body mass index (BMI) on LDL-C were examined in a 3-year longitudinal study of 663 boys and girls (age 8 to 10 years at baseline) with elevated LDL-C levels. Multiple linear regression was used to predict LDL-C at 3 years. For boys, LDL-C decreased by 0.018 mmol/L for each 10 mg/4.2 MJ decrease in dietary cholesterol (P<.05). For girls, no single nutrient was significant in the model, but a treatment group effect was evident (P<.05). In both sexes, BMI at 3 years and LDL-C at baseline were significant and positive predictors of LDL-C levels. In boys, the average LDL-C level was 0.603 mmol/L lower at Tanner stage 4+ than at Tanner stage 1 (P<.01). In girls, the average LDL-C level was 0.274 mmol/L lower at Tanner stage 4+ than at Tanner stage 1 (P<.05). CONCLUSIONS In pubertal children, sexual maturation, BMI, dietary intervention (in girls), and dietary cholesterol (in boys) were significant in determining LDL-C. Sexual maturation was the factor associated with the greatest difference in LDL-C. Clinicians screening for dyslipidemia or following dyslipidemic children should be aware of the powerful effects of pubertal change on measurements of lipoproteins.
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The impact of the ageing population on intensive care provision. Nurs Crit Care 1997; 2:239-42. [PMID: 9873329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
This paper explores the impact of the ageing population on the health service and intensive care provision. The concept of rationing is discussed. The paper concludes that age alone is not a reliable prediction of outcome (e.g. length of stay; mortality). The review highlights the lack of literature available offering a comparison of costs associated with intensive care management of the elderly.
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Immunogenicity of a fusion protein linking the beta subunit carboxyl terminal peptide (CTP) of human chorionic gonadotropin to the B subunit of Escherichia coli heat-labile enterotoxin (LTB). Vaccine 1996; 14:1560-8. [PMID: 9014300 DOI: 10.1016/s0264-410x(96)00046-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Human chorionic gonadotropin (hCG) is currently under investigation as an antigenic target in both anti-cancer and anti-fertility vaccines. Formulations studied to date show promise in clinical trials for both applications yet are expensive to produce and require frequented administration in order to maintain an effective antibody titer. We have engineered a fusion protein consisting of Escherichia coli heat-labile enterotoxin subunit B (LTB) genetically linked at its C terminus via a nine amino acid linker to the 37 amino acid carboxyl terminal peptide (CTP) of the hCG beta chain. This LTB-CTP fusion protein is stably expressed in bacteria and forms pentamers of full-length protein subunits. Purified LTB-CTP protein hCG-specific antibodies in mice without additional adjuvants.
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Baseline characteristics of participants in phase II of the Trials of Hypertension Prevention (TOHP II). Trials of Hypertension Prevention (TOHP) Collaborative Research Group. Ann Epidemiol 1995; 5:149-55. [PMID: 7795833 DOI: 10.1016/1047-2797(94)00059-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Phase II of the Trials of Hypertension Prevention (TOHP II) is a multicenter, controlled clinical trial designed to test whether weight loss, a reduced sodium intake, or a combination of weight loss and a reduced sodium intake will lower blood pressure (BP) and prevent the occurrence of hypertension. The study population consists of middle-aged, moderately overweight individuals with a diastolic BP between 83 and 89 mm Hg. Of the 2382 randomized participants, 816 (34%) are female and 494 (21%) are from a racial or ethnic minority background. At baseline, mean dietary intakes of sodium, based on measurements of 24-hour urinary excretion, were 199 mmol/d in men and 154 mmol/d in women. The average body mass index was 30.9 kg/m2. Across the four randomized groups, there was no substantial imbalance in the distribution of baseline variables; however, the mean age in the four groups was slightly but significantly different (range: 43.2 to 44.2 years, P = 0.02). A comparison of baseline characteristics of TOHP II participants with those of participants in three other primary prevention trials reveals a high level of mean dietary sodium intake in each study. Data reported in this article indicate that any subsequent differences in BP among the randomized groups are unlikely to result from maldistribution of known confounding variables at baseline. Finally, because of the high prevalence of overweight and excessive sodium intake in the United States, results from TOHP II should be broadly applicable to the general population.
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Are emergency department patients more likely to answer alcohol questions in a masked health questionnaire? Alcohol Alcohol 1994; 29:193-7. [PMID: 8080601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The development of approaches to screening of hospital patients for harmful drinking frequently encounters resistance from both patients and hospital staff. A contributing factor could be the discomfort both feel about talking specifically about drinking. One approach to reducing this discomfort has been to mask concern about alcohol consumption into a general focus on other health and lifestyle issues. One-hundred and eighty-two patients admitted to an emergency department were presented randomly with either a straight alcohol screening questionnaire or a general health and lifestyle questionnaire with alcohol questions embedded amongst items on smoking exercise and diet. The number of returns was equal for both questionnaires which suggests the masked questionnaire does not improve the acceptability of alcohol screening in hospital environments.
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Peptide vaccines incorporating a 'promiscuous' T-cell epitope bypass certain haplotype restricted immune responses and provide broad spectrum immunogenicity. J Mol Recognit 1993; 6:81-94. [PMID: 7508238 DOI: 10.1002/jmr.300060206] [Citation(s) in RCA: 57] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An ideal peptide vaccine should contain both B- and T-cell epitopes. Recognition of antigen by B cells is highly dependent on the three-dimensional conformation of the antigen whereas T cells recognize antigen only after it has been processed to release a peptide fragment which is bound to the major histocompatibility complex (MHC) class II molecule. However, T cells provide 'help' to B cells displaying the same processed, MHC-restricted form of the antigen, demonstrating that the T-cell response to a protein antigen is under genetic control. Thus, strategies for co-inclusion of T cell 'helper' epitopes with the B-cell determinant elicit immune responses that are in most cases genetically restricted to only one or a few alleles of the MHC with limited activity across divergent MHC class II haplotypes. This genetically restricted T cell stimulatory activity of peptides is a serious obstacle and consequently such constructs would be of limited practical value as a vaccine targeted to a majority of an outbred population. In the study described here, we have engineered two peptides to encompass the sequences from the universally immunogenic tetanus toxoid (TT) epitope and the contraceptive vaccine candidate lactate dehydrogenase C4 (LDH-C4). We demonstrate the feasibility of using 'promiscuous' T-cell epitopes colinearly constructed with a defined B-cell epitope to induce high titer antipeptide IgG antibodies specific for native protein antigen LDH-C4 in several inbred strains of mice, outbred mice and rabbits. There appears to be a strong correlation between the capacity for the hybrid peptides to be stimulatory for the corresponding T cells in C57BL/6 (H-2b) and C3H/HeJ (H-2k) mice and their ability to be immunogenic. This correlation, however, appears to break down in H-2d strains of mice since no antibodies were detected in BALB/c and barely detectable levels of antibodies in B10.D2 although activated T cells were detectable. Conversely, high titers of antipeptide antibodies are elicited in some strains (B10.BR (H-2k); C57BL/10 (H-2b) without detectable IL-2 responses. Finally, we show that a determinant which was previously restricted to H-2k can be rendered immunogenic in H-2b with the 'promiscuous' TT epitope. Thus, certain haplotype-restricted immune responses can be bypassed, setting forth the ground work for the design of a universal vaccine by broadening the effective response in a larger number of individuals typical of the genetically diverse outbred human population.
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Abstract
Normal-weight bulimic patients have disturbed appetite, mood, and neuroendocrine function and often respond to antidepressants. Since these findings suggest abnormalities in brain monoaminergic pathways, the authors measured CSF monoamine concentrations in 27 normal-weight bulimic patients and 14 volunteers. Bulimic patients had a significantly lower mean CSF norepinephrine concentration. Levels of CSF 5-HIAA, the major serotonin metabolite, and CSF HVA, the major dopamine metabolite, were normal, although more frequent binge-eating in bulimic subjects was associated with a significantly lower CSF HVA level. Whether trait- or state-related, monoaminergic disturbances are part of this disorder's neurobiological syndrome. The lower CSF norepinephrine concentration suggests bulimia is not simply a variant of affective disorders.
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Post-traumatic stress disorder among Special Forces Vietnam veterans. Mil Med 1990; 155:16-20. [PMID: 2106635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Fifty-seven Special Forces Vietnam Veterans were studied to determine if special selection and rigorous training affected the frequency and pattern of predictors of post-traumatic stress disorder (PTSD). No absolute immunity to PTSD was conferred. Frequency (25%) and predictors of PTSD were similar to those reported for other groups of Vietnam Veterans. Symptoms of PTSD were associated with poorer pre-service relationships, being wounded, being wounded after return from R&R, having friends missing in action, feeling guilt over the death of a friend, lack of emotional preparation to leave the unit or service, and failure to discuss feelings upon return from Vietnam.
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A comparison of alprazolam with amitriptyline in the treatment of patients with neurotic or reactive depression. A report of a randomised, double blind study by a General Practitioner Working Party. Ir J Med Sci 1989; 158:110-3. [PMID: 2759809 DOI: 10.1007/bf02943038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
104 patients suffering from neurotic or reactive depression were treated with either alprazolam or amitriptyline in randomised, double-blind fashion. Seventeen patients were either lost to follow-up or withdrawn before week 2 (13 due to side effects and 1 because she was feeling better). A further 7 patients did not comply with the protocol, giving a total of 24 patients whose data were not considered suitable for inclusion in the analysis of therapeutic assessments. Evaluation of the 80 patients (40 in each group) who completed at least 2 weeks of the 4-week study demonstrate that both treatments produced a statistically significant response rate. There was a more rapid effect in those patients who received amitriptyline, but there was no significant difference in response between the treatment groups after 4 weeks treatment. Analysis of safety and side effect data on 101 patients (50 treated with alprazolam and 51 with amitriptyline) shows no statistically significant difference in the overall number of side effects experienced in each group, although 11 of those patients who received amitriptyline withdrew because of adverse reactions before completing the study compared to 6 in the alprazolam group. These results suggest that alprazolam may be a useful treatment for patients with neurotic or reactive depression not requiring hospitalisation.
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Analysis of long-term cardiorespiratory recordings from infants who subsequently suffered SIDS. Ann N Y Acad Sci 1988; 533:390-410. [PMID: 3421636 DOI: 10.1111/j.1749-6632.1988.tb37267.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Abstract
The quantities of sinus tachycardia in 24-h recordings of the electrocardiogram from 16 full-term infants (greater than or equal to 37 weeks gestation) who were subsequently victims of the sudden infant death syndrome (SIDS), from 230 randomly selected age-matched full-term survivors and from 64 full-term survivors matched for age and birth weight were measured by computer and manual analysis techniques. Of 16 infants dying of SIDS, 7 had elevated levels of sinus tachycardia (greater than 95th centile in controls) (P less than 0.01). Although high levels of sinus tachycardia might be of value in identifying infants at high risk of SIDS, these encouraging findings must first be validated by further prospective studies.
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Abstract
Changes are reported in the population dynamics and physical condition of mountain goats (Oreamnos americanus) following a reduction in their density at Olympic National Park, Washington, U.S.A. The goat population showed density-dependent responses in initial breeding ages and in litter size. Production and recruitment of kids were more variable at high densities, and these population attributes may show nonlinear density dependence. These shifts in dynamics were associated with increases in live weights and, possibly, in fat reserves. The density dependence shown was insufficient to compensate for removals that approximated the initial production of young, and goat numbers declined precipitously. The implications of these relationships to mountain goat ecology are examined.
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Analysis of the heart rate and breathing patterns of infants destined to suffer sudden infant death syndrome: probability density function analysis. Pediatr Res 1985; 19:1327-32. [PMID: 4080453 DOI: 10.1203/00006450-198512000-00025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
From a prospective study into the sudden infant death syndrome in which 24-h recordings of the ECG and respiratory waveform (abdominal wall movement) were made on a population of full-term infants, 22 recordings were obtained on 16 infants who subsequently suffered sudden infant death syndrome. The probability density function for the instantaneous heart rate and the breath to breath intervals and their randomly variabilities were calculated for these 22 recordings and for a control group of 324 infants randomly selected from the remainder of the population. A principal components analysis was then performed to classify the data and to make comparisons between infants. The infants in the analysis were divided into three postnatal age groups. No differences were found between the sudden infant death syndrome cases and the control group for the breath to breath intervals and its variability or for the instantaneous heart rate. Three sudden infant death syndrome cases lay outside the range of values for the heart rate variability at 6 wk of age.
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The workstation approach to laboratory computing. AUSTRALASIAN PHYSICAL & ENGINEERING SCIENCES IN MEDICINE 1985; 8:142-8. [PMID: 4096676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Respiratory and heart rate patterns in infants destined to be victims of sudden infant death syndrome: average rates and their variability measured over 24 hours. BMJ : BRITISH MEDICAL JOURNAL 1985; 290:497-501. [PMID: 3918648 PMCID: PMC1418016 DOI: 10.1136/bmj.290.6467.497] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
From a prospective study in which 24 hour recordings of the electrocardiogram and respiratory activity (abdominal wall movement) were made on a population of full term infants, 22 recordings were obtained from 16 infants who later were victims of the sudden infant death syndrome. The average heart rate, average heart rate variability, average breath to breath interval, and average breath to breath interval variability over the whole of each recording for the 22 recordings were compared with those from a control group of 324 infants selected at random from the rest of the population. No significance was found in the number of recordings from those infants who suffered the sudden infant death syndrome which lay outside the 5th-95th percentile range of the control group for the four variables studied. In a group comparison no difference was found between the sudden infant death syndrome group and the controls either in terms of the respiratory variables studied or in terms of the average heart rate variability. The results did, however, suggest that there may be a group difference in terms of the average instantaneous heart rate.
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Abstract
Serum samples taken from four patients who had low serum T4 concentrations (less than 2 micrograms/dl) during severe non-thyroidal illness were found to contain a heat-stable, dialyzable inhibitor of 125I T4 binding to plasma proteins. Inhibitory activity coincided with high dose furosemide treatment for oliguric renal failure. Inhibition was proportional to the serum furosemide concentration and the effect was reproduced in vitro by addition of furosemide to normal serum. The inhibitory effect diminished with serum dilution while maintaining the same relative concentration of furosemide. A time-course study in one patient demonstrated a close temporal relationship between high serum concentrations of furosemide and subnormal T4, associated with T3 resin uptake values compatible with increased occupancy of T4-binding globulin by a competitor. These findings demonstrate that furosemide in high concentrations can inhibit T4 binding in plasma and may be a factor contributing to the development of the low T4 state in critical illness.
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