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Von Ah D, Topp R, Hacker E. Financial Matters: Efforts to Ensure the Stability and Robustness of the Midwest Nursing Research Society. West J Nurs Res 2024; 46:483-484. [PMID: 38519898 DOI: 10.1177/01939459241240873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2024]
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2
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Al Maqbali M, Alsayed A, Hughes C, Hacker E, Dickens GL. Stress, anxiety, depression and sleep disturbance among healthcare professional during the COVID-19 pandemic: An umbrella review of 72 meta-analyses. PLoS One 2024; 19:e0302597. [PMID: 38722888 PMCID: PMC11081353 DOI: 10.1371/journal.pone.0302597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 04/08/2024] [Indexed: 05/13/2024] Open
Abstract
The outbreak of SARS-CoV-2, which causes COVID-19, has significantly impacted the psychological and physical health of a wide range of individuals, including healthcare professionals (HCPs). This umbrella review aims provide a quantitative summary of meta-analyses that have investigated the prevalence of stress, anxiety, depression, and sleep disturbance among HCPs during the COVID-19 pandemic. An umbrella review of systematic reviews and meta-analyses reviews was conducted. The search was performed using the EMBASE, PubMed, CINAHL, MEDLINE, PsycINFO, and Google Scholar databases from 01st January 2020 to 15th January 2024. A random-effects model was then used to estimate prevalence with a 95% confidence interval. Subgroup analysis and sensitivity analyses were then conducted to explore the heterogeneity of the sample. Seventy-two meta-analyses involved 2,308 primary studies were included after a full-text review. The umbrella review revealed that the pooled prevalence of stress, anxiety, depression, and sleep disturbance among HCPs during the COVID-19 pandemic was 37% (95% CI 32.87-41.22), 31.8% (95% CI 29.2-34.61) 29.4% (95% CI 27.13-31.84) 36.9% (95% CI 33.78-40.05) respectively. In subgroup analyses the prevalence of anxiety and depression was higher among nurses than among physicians. Evidence from this umbrella review suggested that a significant proportion of HCPs experienced stress, anxiety, depression, and sleep disturbance during the COVID-19 pandemic. This information will support authorities when implementing specific interventions that address mental health problems among HCPs during future pandemics or any other health crises. Such interventions may include the provision of mental health support services, such as counseling and peer support programs, as well as the implementation of organizational strategies to reduce workplace stressors.
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Affiliation(s)
| | - Ahmad Alsayed
- Faculty of Pharmacy, Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman, Jorden
| | - Ciara Hughes
- Institute of Nursing and Health Research School of Health Sciences, Ulster University, Belfast, United Kingdom
| | - Eileen Hacker
- University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Geoffrey L. Dickens
- Midwifery and Health Faculty of Health and Life Sciences, Mental Health Nursing Department of Nursing, Northumbria University, Newcastle-Upon-Tyne, United Kingdom
- Adjunct Professor Western Sydney University, Parramatta, NSW, Australia
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Tucker S, Buckwalter K, Hacker E. The Midwest Nursing Research Society's 2023-2026 Strategic Plan. West J Nurs Res 2024; 46:256-257. [PMID: 38197413 DOI: 10.1177/01939459231221199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Affiliation(s)
| | | | - Eileen Hacker
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Webster-Dekker KE, Hacker E, Perkins SM, Chang PS, Ellis J, Winton R, Otis L, Gates M, Lu Y. Risk factors for inpatient facility admission among home health care patients with diabetes. Nurs Outlook 2023; 71:102050. [PMID: 37757614 PMCID: PMC10804840 DOI: 10.1016/j.outlook.2023.102050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/29/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Home health care (HHC) patients with diabetes are at high risk for inpatient admissions. PURPOSE To identify variables associated with inpatient admissions among adults age ≥50 with diabetes receiving HHC in the community and in assisted living (AL). METHODS Retrospective HHC data (collected October 2021 to March 2022 in the Southern United States) from the Outcome and Assessment Information Set D were analyzed with logistic regression (n = 5,308 patients). DISCUSSION The inpatient admission rate was 29.5%. For community-dwelling patients, multiple hospitalizations, depression, limited cognitive function, decreased activities of daily living (ADL) performance, and unhealed pressure ulcer or injury ≥stage 2 were significantly associated with inpatient admission. For those in AL, multiple prior hospitalizations and decreased ability to perform ADLs were associated with inpatient admission. CONCLUSION Understanding risk factors for inpatient admissions among patients with diabetes can support the identification of at-risk patients and inform interventions.
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Affiliation(s)
| | - Eileen Hacker
- Department of Nursing, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Susan M Perkins
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, IN
| | - Pei-Shiun Chang
- Department of Community & Health Systems, Indiana University School of Nursing, Bloomington, IN
| | | | | | | | | | - Yvonne Lu
- Department of Science of Nursing Care, Indiana University School of Nursing, Indianapolis, IN
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Wall SA, Olin R, Bhatt V, Chhabra S, Munshi P, Hacker E, Hashmi S, Hassel H, Howard D, Jayani R, Lin R, McCurdy S, Mishra A, Murthy H, Popat U, Wood W, Rosko AE, Artz A. The Transplantation Ecosystem: A New Concept to Improve Access and Outcomes for Older Allogeneic Hematopoietic Cell Transplantation Patients. Transplant Cell Ther 2023; 29:632.e1-632.e10. [PMID: 37137442 DOI: 10.1016/j.jtct.2023.04.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/05/2023]
Abstract
Allogeneic hematopoietic cell transplantation (HCT) is increasingly offered to older adults with hematologic malignancies, even though nonrelapse mortality remains a major concern in older patients owing to more comorbidities and greater frailty compared with their younger counterparts. The importance of patient fitness, a well-matched donor, and disease control to the success of allogeneic HCT have been well documented; however, these factors fail to account for the impact of the complex transplantation ecosystem (TE) that older adult HCT candidates must navigate. We propose a definition of the TE modeled after the social determinants of health. Furthermore, we outline a research agenda aimed at increasing understanding of the roles of individual social determinants of transplantation health in the larger ecosystem and how they may benefit or harm older adult HCT candidates. Herein we define the TE and its individual tenets, the social determinants of transplantation health. We review the available literature while incorporating the expertise of the membership of the American Society for Transplantation and Cellular Therapy (ASTCT) Special Interest Group for Aging. The membership of the ASTCT Special Interest Group for Aging identify knowledge gaps and strategies to address them for each of the described social determinants of transplantation health. The ecosystem is an essential but underappreciated pillar for transplant access and success. We put forth this novel research agenda seeking to gain a better understanding of the complexity of HCT in older adults and develop strategies to improve access to HCT, survival, and quality of life.
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Affiliation(s)
- Sarah A Wall
- Division of Hematology, Ohio State University, Columbus, OH.
| | - Rebecca Olin
- Division of Hematology & Oncology, University of California San Francisco, San Francisco, CA
| | - Vijaya Bhatt
- Division of Hematology & Oncology, University of Nebraska Medical Center, Omaha, NE
| | - Saurabh Chhabra
- Division of Hematology & Oncology, Medical College of Wisconsin, Milwaukee, WI
| | - Pashna Munshi
- Division of Oncology, Georgetown University Medical Center, Washington, DC
| | - Eileen Hacker
- Department of Nursing, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Shahrukh Hashmi
- Division of Hematology, Mayo Clinic Minnesota, Rochester, MN
| | - Hailey Hassel
- National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Dianna Howard
- Division of Hematology & Oncology, Wake Forest University School of Medicine, Winston-Salem, NC
| | - Reena Jayani
- Division of Hematology & Oncology, Vanderbilt University Medical Center, Nashville, TN
| | - Richard Lin
- Division of Hematologic Malignancies, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Shannon McCurdy
- Division of Hematology & Oncology, University of Pennsylvania, Philadelphia, PA
| | - Asmita Mishra
- Department of Malignant Hematology, Moffitt Cancer Center, Tampa, FL
| | - Hemant Murthy
- Division of Hematology & Oncology, Mayo Clinic, Jacksonville, FL
| | - Uday Popat
- Department of Nursing, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - William Wood
- Division of Hematology, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Ashley E Rosko
- Division of Hematology, Ohio State University, Columbus, OH
| | - Andrew Artz
- Division of Hematology & Hematopoietic Cell Transplantation, City of Hope Comprehensive Cancer Center, Duarte, CA
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Hacker E, Baker B, Lake T, Ross C, Cox M, Davies C, Skinner SR, Booy R, Forster A. Vaccine microarray patch self-administration: An innovative approach to improve pandemic and routine vaccination rates. Vaccine 2023; 41:5925-5930. [PMID: 37643926 DOI: 10.1016/j.vaccine.2023.08.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 07/20/2023] [Accepted: 08/11/2023] [Indexed: 08/31/2023]
Abstract
The high-density microprojection array patch (HD-MAP) is a novel vaccine delivery system with potential for self-administered vaccination. HD-MAPs provide an alternative to needle and syringe (N&S) vaccination. Additional advantages could include reduced cold-chain requirements, reduced vaccine dose, reduced vaccine wastage, an alternative for needle phobic patients and elimination of needlestick injuries. The drivers and potential benefits of vaccination by self-administering HD-MAPs are high patient acceptance and preference, higher vaccination rates, speed of roll-out, cost-savings, and reduced sharps and environmental waste. The HD-MAP presents a unique approach in pandemic preparedness and routine vaccination of adults. It could alleviate strain on the healthcare workforce and allows vaccine administration by minimally-trained workers, guardian or subjects themselves. Self-vaccination using HD-MAPs could occur in vaccination hubs with supervision, at home after purchasing at the pharmacy, or direct distribution to in-home settings. As a result, it has the potential to increase vaccine coverage and expand the reach of vaccines, while also reducing labor costs associated with vaccination. Key challenges remain around shifting the paradigm from medical professionals administrating vaccines using N&S to a future of self-administration using HD-MAPs. Greater awareness of HD-MAP technology and improving our understanding of the implementation processes required for adopting this technology, are critical factors underpinning HD-MAP uptake by the public.
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Affiliation(s)
- E Hacker
- Vaxxas Pty Ltd, Translational Research Institute, Woolloongabba, Australia; Menzies Health Institute Queensland, Griffith University, Brisbane, QLD 4222, Australia
| | - B Baker
- Vaxxas Pty Ltd, Translational Research Institute, Woolloongabba, Australia
| | - T Lake
- Vaxxas Pty Ltd, Translational Research Institute, Woolloongabba, Australia
| | - C Ross
- Vaxxas Pty Ltd, Translational Research Institute, Woolloongabba, Australia
| | - M Cox
- NextWaveBio, East Haven, CT, United States
| | - C Davies
- Specialty of Child and Adolescent Health, The Children's Hospital at Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia; Sydney Institute of Infectious Diseases, University of Sydney, Sydney, Australia
| | - S R Skinner
- Specialty of Child and Adolescent Health, The Children's Hospital at Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia; Sydney Institute of Infectious Diseases, University of Sydney, Sydney, Australia
| | - R Booy
- Specialty of Child and Adolescent Health, The Children's Hospital at Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia; Sydney Institute of Infectious Diseases, University of Sydney, Sydney, Australia
| | - A Forster
- Vaxxas Pty Ltd, Translational Research Institute, Woolloongabba, Australia.
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Baker B, Hacker E, Siller G, Lee M, Mursaliyev N, Forster A. Evaluation of the self-administration potential of high-density microarray patches to human skin: A preliminary study. Hum Vaccin Immunother 2023; 19:2189409. [PMID: 36949009 PMCID: PMC10064923 DOI: 10.1080/21645515.2023.2189409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023] Open
Abstract
The high-density microneedle array patch (HD-MAP) is a novel vaccine delivery system with potential for self-administered vaccination. In this study, Vaxxas HD-MAPs were applied by both a trained user and self-administered with application sites compared to determine the response of skin and the level of engagement of the HD-MAP with human skin. Twenty healthy participants were enrolled, and the response of skin including erythema was observed at all application sites and no difference was found between trained user or self-administered applications. The majority of participants (70%) preferred the deltoid upper arm application site for applying HD-MAPs. Fluorescent dermatoscope images confirmed HD-MAPs engaged the skin surface and scanning electron microscopy (SEM) image analysis exhibited similar delivery characteristics for the upper arm and forearm sites when applied by either a trained user or self-administered. This study showed that noninvasive methods including dermatoscopy and SEM image analysis were able to estimate the engagement of HD-MAPs with human skin. HD-MAP self-vaccination technology has a unique proposition in pandemic preparedness by alleviating the need for health-care workers to administer vaccines, however greater awareness and understanding of the potential of this technology is required.
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Affiliation(s)
- B Baker
- Vaxxas Biomedical Facility, Hamilton, Australia
| | - E Hacker
- Vaxxas Biomedical Facility, Hamilton, Australia
- Menzies Health Institute Queensland, Griffith University, Brisbane, Queensland, Australia
| | - G Siller
- Dermatology Research Centre, University of Queensland Diamantina Institute, Brisbane, Queensland, Australia
- Central Brisbane Dermatology, Brisbane, Queensland, Australia
- Department of Dermatology, Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | - M Lee
- Biodock Inc, Austin, TX, USA
| | | | - A Forster
- Vaxxas Biomedical Facility, Hamilton, Australia
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Al Maqbali M, Gracey J, Rankin J, Dunwoody L, Hacker E, Hughes C. Cross-Cultural Adaptation and Psychometric Properties of Quality of Life Scales for Arabic-Speaking Adults: A systematic review. Sultan Qaboos Univ Med J 2020; 20:e125-e137. [PMID: 32655904 PMCID: PMC7328836 DOI: 10.18295/squmj.2020.20.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/30/2019] [Accepted: 12/09/2019] [Indexed: 11/16/2022] Open
Abstract
This review aimed to explore the psychometric properties of quality of life (QOL) scales to identify appropriate tools for research and clinical practice in Arabic-speaking adults. A systematic search of the Cumulative Index to Nursing and Allied Health Literature® (EBSCO Information Services, Ipswich, Massachusetts, USA), MEDLINE® (National Library of Medicine, Bethesda, Maryland, USA), EMBASE (Elsevier, Amsterdam, Netherlands) and PsycINFO (American Psychological Association, Washington, District of Columbia, USA) databases was conducted according to Preferred Reporting Items Systematic Reviews and Meta-Analysis guidelines. Quality assessment criteria were then utilised to evaluate the psychometric properties of identified QOL scales. A total of 27 studies relating to seven QOL scales were found. While these studies provided sufficient information regarding the scales' validity and reliability, not all reported translation and cross-cultural adaptation processes. Researchers and clinicians should consider whether the psychometric properties, subscales and characteristics of their chosen QOL scale are suitable for use in their population of interest.
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Affiliation(s)
- Mohammed Al Maqbali
- Institute of Nursing and Health Research, Ulster University, Shore Road, Jordanstown Campus, Newtownabbey, UK.,Ministry of Health, Al Buraimi Hospital, Oman
| | - Jackie Gracey
- Institute of Nursing and Health Research, Ulster University, Shore Road, Jordanstown Campus, Newtownabbey, UK
| | - Jane Rankin
- Physiotherapy Department, Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | - Lynn Dunwoody
- Psychology Research Institute, Ulster University, Coleraine, UK
| | - Eileen Hacker
- School of Nursing, Indiana University, Indianapolis, USA
| | - Ciara Hughes
- Institute of Nursing and Health Research, Ulster University, Shore Road, Jordanstown Campus, Newtownabbey, UK
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Al Maqbali M, Gracey J, Dunwoody L, Rankin J, Hacker E, Hughes C. Healthcare professionals knowledge on cancer-related fatigue: A cross-sectional survey in Oman. Nurs Health Sci 2020; 22:732-740. [PMID: 32270899 DOI: 10.1111/nhs.12720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/26/2020] [Accepted: 04/01/2020] [Indexed: 11/27/2022]
Abstract
Cancer-related fatigue is a common and distressing cancer symptom that negatively affects quality of life. The main objective of this study was to determine health professionals' knowledge relating to cancer patients' fatigue in Oman and identify current management practices of cancer-related fatigue. A cross-sectional survey design using Qualtrics® software was performed. The survey had five sections and comprised 32 items. A total of 138 healthcare professionals working in Oman participated in the study (response rate 63.9%). Nearly three quarters of the participants were nurses (74.6%, n = 103). The mean level of knowledge of cancer-related fatigue was 16.6/23, with 50% of participants having the expected level of knowledge above 12. The result indicated that professional discipline and work experience each were significantly associated with overall level of knowledge. Participants identified the need for guidelines, assessment tools, and training for the oncology staff to help improve the quality of life of patients with cancer-related fatigue.
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Affiliation(s)
- Mohammed Al Maqbali
- Institute of Nursing and Health Research, Ulster University, Newtownabbey, UK
| | - Jackie Gracey
- Institute of Nursing and Health Research, Ulster University, Newtownabbey, UK
| | - Lynn Dunwoody
- Psychology Research Institute, Ulster University, Coleraine, UK
| | - Jane Rankin
- Physiotherapy Department, Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | | | - Ciara Hughes
- Institute of Nursing and Health Research, Ulster University, Newtownabbey, UK
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10
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Al Maqbali M, Hughes C, Gracey J, Rankin J, Hacker E, Dunwoody L. Psychometric Properties of the Arabic Version of the Functional Assessment of Chronic Illnesses Therapy-Fatigue in Arabic Cancer Patients. J Pain Symptom Manage 2020; 59:130-138.e2. [PMID: 31647976 DOI: 10.1016/j.jpainsymman.2019.10.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/04/2019] [Accepted: 10/04/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND The Functional Assessment of Chronic Illness Therapy (FACIT) is a measurement system that was developed to assess the health-related quality of life among patients with cancer and other chronic illnesses. The Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) is a 40-item questionnaire, and it is one of the most frequently used instruments to assess fatigue in cancer populations. The aim of this study was to evaluate the psychometric properties of the Arabic FACIT-F among patients diagnosed with cancer. METHODS Following a translated and cross-cultural evaluation procedure of the FACIT-F Arabic version, a cross-sectional and descriptive correlational design was conducted. A total of 369 patients with cancer completed the FACIT-F, which consists of the 27-item Functional Assessment of Cancer Therapy-General (FACT-G) and the 13-item Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F). The scale was assessed in terms of acceptability, internal consistency, and validity. Construct validity was explored through confirmatory factor analysis. RESULTS The FACT-G had acceptable fit in the four-factor model, whereas the FACIT-Fatigue was found to be acceptable for the one-factor model in Arabic patients diagnosed with cancer. The Cronbach's alpha coefficient for the Arabic FACIT-Fatigue was 0.92, whereas the total score for FACT-G was 0.92, which showed good reliability. There was evidence that discriminated validity analysis was generally very good for the FACIT-Fatigue and FACT-G Arabic versions. CONCLUSION The Arabic versions of the FACIT-Fatigue and FACT-G demonstrated good reliability and validity for assessing fatigue and quality of life in patients diagnosed with cancer.
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Affiliation(s)
- Mohammed Al Maqbali
- Institute of Nursing and Health Research , Ulster University, Newtownabbey, UK.
| | - Ciara Hughes
- Institute of Nursing and Health Research , Ulster University, Newtownabbey, UK
| | - Jackie Gracey
- Institute of Nursing and Health Research , Ulster University, Newtownabbey, UK
| | - Jane Rankin
- Physiotherapy Department, Cancer Centre , Belfast Health and Social Care Trust, Belfast, UK
| | - Eileen Hacker
- School of Nursing , Indiana University, Indianapolis, USA
| | - Lynn Dunwoody
- Psychology Research Institute , Ulster University, Coleraine, UK
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Al Maqbali M, Hughes C, Gracey J, Rankin J, Dunwoody L, Hacker E. Quality assessment criteria: psychometric properties of measurement tools for cancer related fatigue. Acta Oncol 2019; 58:1286-1297. [PMID: 31204538 DOI: 10.1080/0284186x.2019.1622773] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Background: Fatigue is a common and distressing cancer symptom that negatively affects the quality of life. Many scales have been developed to assess cancer-related fatigue. The properties of the scales vary in terms of dimensionality, reliability, validity, length and method of administration. Insufficient of psychometric properties may affect the accuracy of scales findings, that may lead result obtained questionable. The main objective of this review was to conduct a quality assessment of the psychometric properties of cancer-related fatigue scales to identify appropriate scales that could be used in research and clinical practice. Method: A systematic search was carried out to identify validated scales that measure cancer-related fatigue. Five databases were searched: CINAHL, MEDLINE, EMBASE, PsycINFO, Cochrane Library. This review was conducted following the PRISMA and Terwee et al.'s quality assessment guidelines to evaluate the psychometric properties of the studies. Result: Seventy-one different studies published between 1970 and 2018 met the inclusion criteria. Twenty-five scales were identified. Of these, eighteen were multidimensional and seven were uni-dimensional, containing between 4 and 72 items. Reliability and/or validity information was missing for many scales. Four scales met the quality assessment criteria and were reported as the most appropriate for measuring fatigue in cancer patients. Conclusion: Further psychometric testing is required for other scales. Developing a universally-defined tool kit for the assessment of cancer-related fatigue may help clarify the concept of fatigue and promote a systematic approach to fatigue measurement.
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Affiliation(s)
- Mohammed Al Maqbali
- Institute of Nursing and Health Research, Ulster University, Newtownabbey, UK
| | - Ciara Hughes
- Institute of Nursing and Health Research, Ulster University, Newtownabbey, UK
| | - Jackie Gracey
- Institute of Nursing and Health Research, Ulster University, Newtownabbey, UK
| | - Jane Rankin
- Physiotherapy Department, Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | - Lynn Dunwoody
- Psychology Research Institute, Ulster University, Coleraine, UK
| | - Eileen Hacker
- School of Nursing, Indiana University, Indianapolis, USA
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12
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Al Maqbali M, Dunwoody L, Rankin J, Hacker E, Hughes C, Gracey J. Psychometric properties and cultural adaptation of sleep disturbance measures in Arabic-speaking populations: A systematic review. J Sleep Res 2019; 29:e12877. [PMID: 31180174 DOI: 10.1111/jsr.12877] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 04/26/2019] [Accepted: 04/27/2019] [Indexed: 12/25/2022]
Abstract
The aim of this review was to evaluate the psychometric properties and cross-cultural adaptation of sleep disturbance scales that have been translated into Arabic or originally developed in Arabic, and to identify appropriate scales that can be used in research and clinical practice intended for Arabic-speaking participants. The following databases were searched: CINAHL (2003-2019), MEDLINE (1946-2019), EMBASE (1980-2019), PsycINFO (1806-2019) and Cochrane Library (1806-2019). This review was conducted following PRISMA guidelines. Terwee et al. (J. Clin. Epidemiol., 60, 2007, 34) quality assessment was used to evaluate the psychometric properties of the studies, and cross-cultural adaptation was assessed using criteria from Guillemin, Bombardier, and Beaton (J. Clin. Epidemiol., 46, 1993, 1417). Seven studies met the inclusion criteria, which included four scales: the Epworth Sleepiness Scale, Insomnia Severity Index, Pittsburgh Sleep Quality Index, and Arabic Scale of Insomnia. Cross-cultural adaptations scored between good and poor; psychometric properties information was missing for most scales. The review suggested that Pittsburgh Sleep Quality Index may be a useful scale to measure sleep disturbance, as the scale showed good cultural adaptation and acceptable psychometric properties in an Arabic population. Furthermore, the scales measure seven different aspects of sleep quality. This review provides options to help researchers and clinicians select the most appropriate instrument for their practice. Further psychometric testing and cultural adaptation is required for sleep scales used in Arabic clinical populations to ensure validity and reliability in outcome measurement for research studies.
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Affiliation(s)
- Mohammed Al Maqbali
- Institute of Nursing and Health Research, Ulster University, Newtownabbey, UK
| | - Lynn Dunwoody
- Psychology Research Institute, Ulster University, Coleraine, UK
| | - Jane Rankin
- Physiotherapy Department, Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | - Eileen Hacker
- School of Nursing, Indiana University, Indianapolis, USA
| | - Ciara Hughes
- Institute of Nursing and Health Research, Ulster University, Newtownabbey, UK
| | - Jackie Gracey
- Institute of Nursing and Health Research, Ulster University, Newtownabbey, UK
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Masoomi R, Lancaster E, Hacker E, Robinson A, Hance K, Thors A, Gupa K. P5495Postmarketing adverse events related to the use of endoanchors in abdominal aortic aneurysm repair. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- R Masoomi
- University of Kansas Medical Center, Cardiology, Kansas City, United States of America
| | - E Lancaster
- University of Kansas Medical Center, Cardiology, Kansas City, United States of America
| | - E Hacker
- University of Kansas Medical Center, Cardiology, Kansas City, United States of America
| | - A Robinson
- University of Kansas Medical Center, Cardiology, Kansas City, United States of America
| | - K Hance
- University of Kansas Medical Center, Cardiology, Kansas City, United States of America
| | - A Thors
- University of Kansas Medical Center, Cardiology, Kansas City, United States of America
| | - K Gupa
- University of Kansas Medical Center, Cardiology, Kansas City, United States of America
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Patel P, Oh AL, Koshy M, Sweiss K, Saraf SL, Quigley JG, Khan I, Mahmud N, Hacker E, Ozer H, Peace DJ, Weichselbaum RR, Aydogan B, Rondelli D. A phase 1 trial of autologous stem cell transplantation conditioned with melphalan 200 mg/m2and total marrow irradiation (TMI) in patients with relapsed/refractory multiple myeloma. Leuk Lymphoma 2017; 59:1666-1671. [DOI: 10.1080/10428194.2017.1390231] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Pritesh Patel
- Division of Hematology/Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
- University of Illinois Cancer Center, Chicago, IL, USA
| | - Annie L. Oh
- Division of Hematology/Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
| | - Matthew Koshy
- University of Illinois Cancer Center, Chicago, IL, USA
- Department of Radiation Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
- Department of Cellular and Radiation Oncology, University of Chicago, Chicago, IL, USA
| | - Karen Sweiss
- University of Illinois Cancer Center, Chicago, IL, USA
- Department of Pharmacy Practice, University of Illinois at Chicago, Chicago, IL, USA
| | - Santosh L. Saraf
- Division of Hematology/Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
- University of Illinois Cancer Center, Chicago, IL, USA
| | - John G. Quigley
- Division of Hematology/Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
- University of Illinois Cancer Center, Chicago, IL, USA
| | - Irum Khan
- Division of Hematology/Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
- University of Illinois Cancer Center, Chicago, IL, USA
| | - Nadim Mahmud
- Division of Hematology/Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
- University of Illinois Cancer Center, Chicago, IL, USA
| | - Eileen Hacker
- University of Illinois Cancer Center, Chicago, IL, USA
- Department of Biobehavioural Health Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA
| | - Howard Ozer
- Division of Hematology/Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
- University of Illinois Cancer Center, Chicago, IL, USA
| | - David J. Peace
- Division of Hematology/Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
- University of Illinois Cancer Center, Chicago, IL, USA
| | - Ralph R. Weichselbaum
- Department of Radiation Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
- Department of Cellular and Radiation Oncology, University of Chicago, Chicago, IL, USA
| | - Bulent Aydogan
- Department of Radiation Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
- Department of Cellular and Radiation Oncology, University of Chicago, Chicago, IL, USA
| | - Damiano Rondelli
- Division of Hematology/Oncology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
- University of Illinois Cancer Center, Chicago, IL, USA
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15
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Kim I, Hacker E, Ferrans CE, Horswill C, Park C, Kapella M. Evaluation of fatigability measurement: Integrative review. Geriatr Nurs 2017; 39:39-47. [PMID: 28666548 DOI: 10.1016/j.gerinurse.2017.05.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/13/2017] [Accepted: 05/22/2017] [Indexed: 10/19/2022]
Abstract
Fatigability is defined as the extent of fatigue in the context of activity and differs from the term used in exercise literature to describe muscle endurance characteristics. Many fatigability measures are available, but no studies have thoroughly evaluated them for adequate incorporation of fatigability concepts. This integrative review provides an overall assessment of existing fatigability measures and then evaluates each in depth. A database search and hand search produced 14 studies for review. Fatigability measurement took three forms: self-reported fatigability, perceived fatigability (self-reported fatigue following a defined performance test), and performance fatigability (performance deterioration). Of 17 measures identified, validity and/or reliability was reported for six (35.3%), and no measure was used in more than one study. Fatigability measures have been correlated with clinical measures, indicating that fatigability should be measured during routine clinical health screening. Refinement of measures and additional fatigability data collection will improve understanding and treatment of fatigue.
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Affiliation(s)
- Inah Kim
- College of Nursing, University of Illinois at Chicago, USA.
| | | | | | - Craig Horswill
- Kinesiology and Nutrition, University of Illinois at Chicago, USA
| | - Chang Park
- College of Nursing, University of Illinois at Chicago, USA
| | - Mary Kapella
- College of Nursing, University of Illinois at Chicago, USA
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16
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Patel B, Hacker E, Murks C, Ryan C. Interdisciplinary Pain Education: Moving From Discipline-Specific to Collaborative Practice. Clin J Oncol Nurs 2016; 20:636-643. [DOI: 10.1188/16.cjon.636-643] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Piano MR, Diegel-Vacek LJ, Hacker E. From the trenches: Please send help. Nurs Outlook 2015; 63:388-9. [DOI: 10.1016/j.outlook.2015.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 05/06/2015] [Indexed: 10/23/2022]
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18
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Martyn-Nemeth P, Quinn L, Hacker E, Park H, Kujath AS. Diabetes distress may adversely affect the eating styles of women with type 1 diabetes. Acta Diabetol 2014; 51:683-6. [PMID: 24615054 PMCID: PMC4553938 DOI: 10.1007/s00592-014-0575-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 02/18/2014] [Indexed: 10/25/2022]
Abstract
The aim of this study was to determine the relationships among diabetes distress, fear of hypoglycemia, and eating styles in women with type 1 diabetes (T1DM). Fifteen women (mean age 37 ± 13.5 years) with T1DM completed surveys measuring diabetes distress, fear of hypoglycemia (FOH), and eating style. Height, weight, and A1C were obtained, and open-ended comments regarding hypoglycemic concerns and experiences were recorded. Diabetes distress was positively associated with A1C (r = .655, p = .008). High levels of external (73 %), emotional (47 %), and restrained (53 %) eating styles were reported. Emotional and external eating styles were positively associated with diabetes distress (r = .575 and r = .622; p < .05). Those with poorer glycemic control (A1C > 7 %; 53 mmol/mol) had higher levels of restrained eating behavior (F = 10.69, p = .006) and greater interpersonal distress (F = 5.916, p = .03) than those with better glycemic control (A1C < 7 %; 53 mmol/mol). A nonlinear relationship was identified between interpersonal distress and FOH (behavior subscale, p = .0383) indicating that fewer behavioral approaches were employed to avoid hypoglycemia at higher distress levels. The women in this sample were emotionally burdened by their disease. Distress was associated with eating styles linked with overeating and poor glycemic control. High levels of emotional and external eating styles may have important clinical implications for those with T1DM.
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Affiliation(s)
- Pamela Martyn-Nemeth
- Department of Biobehavioral Health Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA,
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19
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Breitenbach K, Epstein-Reeves M, Hacker E, Corte C, Piano MR. Alcohol Use Assessment in Young Adult Cancer Survivors. Oncol Nurs Forum 2014; 41:517-22. [DOI: 10.1188/14.onf.41-05ap] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Borradale D, Isenring E, Hacker E, Kimlin M. Exposure to solar ultraviolet radiation is associated with a decreased folate status in women of childbearing age. Journal of Photochemistry and Photobiology B: Biology 2014; 131:90-5. [DOI: 10.1016/j.jphotobiol.2014.01.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 12/21/2013] [Accepted: 01/07/2014] [Indexed: 02/07/2023]
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21
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Ricardo AC, Hacker E, Lora CM, Ackerson L, DeSalvo KB, Go A, Kusek JW, Nessel L, Ojo A, Townsend RR, Xie D, Ferrans CE, Lash JP. Validation of the Kidney Disease Quality of Life Short Form 36 (KDQOL-36) US Spanish and English versions in a cohort of Hispanics with chronic kidney disease. Ethn Dis 2013; 23:202-209. [PMID: 23530302 PMCID: PMC3651651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
OBJECTIVE Evaluate the reliability and validity of the Kidney Disease Quality of Life Short Form 36 (KDQOL-36) in Hispanics with mild-to-moderate chronic kidney disease (CKD). DESIGN Cross-sectional SETTING Chronic Renal Insufficiency Cohort Study PARTICIPANTS 420 Hispanic (150 English- and 270 Spanish-speakers), and 409 non-Hispanic White individuals, matched by age (mean 57 years), sex (60% male), kidney function (mean estimated glomerular filtration rate 36ml/min/1.73m2), and diabetes (70%). METHODS To measure construct validity, we selected instruments, comorbidities, and laboratory tests related to at least one KDQOL-36 subscale. Reliability was determined by calculating Cronbach's alpha. RESULTS Reliability of each KDQOL-36 subscale [SF-12 Physical Component Summary (PCS) and Mental Component Summary (MCS), Symptoms/Problems, Burden of Kidney Disease and Effects of Kidney Disease] was very good (Cronbach's alpha >0.8). Construct validity was supported by expected negative correlation between MCS scores and the Beck Depression Inventory in all three subgroups (r=-0.56 to -0.61, P<.0001). There was inverse correlation between the Symptoms/ Problems subscale and the Patient Symptom Form (r= -0.70 to -0.77, P<.0001). We also found significant, positive correlation between the PCS score and a physical activity survey (r=+0.29 to +0.38, P< or =.003); and between the PCS and MCS scores and the Kansas City Questionnaire (r= +0.31 to +0.64, P<.0001). Reliability and validity were similar across all racial/ethnic groups analyzed separately. CONCLUSION Our findings support the use of the KDQOL-36 as a measure of HRQOL in this cohort of US Hispanics with CKD.
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Affiliation(s)
- Ana C Ricardo
- Department of Medicine, Section of Nephrology, University of Illinois at Chicago, USA.
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22
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Ligibel JA, Meyerhardt J, Pierce JP, Najita J, Shockro L, Campbell N, Newman VA, Barbier L, Hacker E, Wood M, Marshall J, Paskett E, Shapiro C. Impact of a telephone-based physical activity intervention upon exercise behaviors and fitness in cancer survivors enrolled in a cooperative group setting. Breast Cancer Res Treat 2011; 132:205-13. [PMID: 22113257 DOI: 10.1007/s10549-011-1882-7] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Accepted: 11/10/2011] [Indexed: 01/22/2023]
Abstract
Observational studies demonstrate an association between physical activity and improved outcomes in breast and colon cancer survivors. To test these observations with a large, randomized clinical trial, an intervention that significantly impacts physical activity in these patients is needed. The Active After Cancer Trial (AACT) was a multicenter pilot study evaluating the feasibility of a telephone-based exercise intervention in a cooperative group setting. Sedentary (engaging in <60 min of recreational activity/week) breast and colorectal cancer survivors were randomized to a telephone-based exercise intervention or usual care control group. The intervention was delivered through the University of California at San Diego; participants received ten phone calls over the course of the 16-week intervention. All participants underwent assessment of physical activity, fitness, physical functioning, fatigue and exercise self-efficacy at baseline and after the 16-week intervention. One hundred and twenty-one patients were enrolled through ten Cancer and Leukemia Group B (CALGB) institutions; 100 patients had breast cancer and 21 had colorectal cancer. Participants randomized to the exercise group increased physical activity by more than 100 versus 22% in controls (54.5 vs. 14.6 min, P = 0.13), and experienced significant increases in fitness (increased 6-min walk test distance by 186.9 vs. 81.9 feet, P = 0.006) and physical functioning (7.1 vs. 2.6, P = 0.04) as compared to the control group. Breast and colorectal cancer survivors enrolled in a multicenter, telephone-based physical activity intervention increased physical activity and experienced significant improvements in fitness and physical functioning. Lifestyle intervention research is feasible in a cooperative group setting.
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Affiliation(s)
- Jennifer A Ligibel
- Dana-Farber Cancer Institute, 450 Brookline Ave Boston, Boston, MA 02215, USA.
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23
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Ricardo AC, Hacker E, Lora CM, Ackerson L, DeSalvo KB, Go A, Kusek J, Narva A, Nessel L, Ojo A, Townsend R, Xie D, Welliver B, Ferrans CE, Lash JP. 264 Validation of the Kidney Disease Quality of Life 36 (KDQOL-36) U.S. Spanish and English Versions in Hispanics with Chronic Kidney Disease. Am J Kidney Dis 2011. [DOI: 10.1053/j.ajkd.2011.02.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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24
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Abstract
Exercise improves quality of life (QOL) in people with cancer. Most oncology healthcare providers recognize the statement to be true because the research literature provides strong support for the physical and psychological benefits of exercise. Because the terms exercise, QOL, and people with cancer have different meanings, the contextual connections in which they are used are important to understanding the relationship between exercise and QOL in people with cancer. This article explores the links between exercise and QOL in people with cancer and examines issues that impact the development, implementation, and evaluation of exercise programs for people with cancer. Issues related to exercise goal development, exercise prescription, exercise testing, exercise adherence, and methods to evaluate the efficacy of exercise in relation to QOL are discussed.
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Affiliation(s)
- Eileen Hacker
- Department of Biobehavioral Health Sciences in the College of Nursing, The University of Illinois, Chicago, USA.
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25
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Eva E, Mann K, Kaiser N, Anton B, Henking R, Ristau D, Weissbrodt P, Mademann D, Raupach L, Hacker E. Laser conditioning of LaF(3)/MgF(2) dielectric coatings at 248 nm. Appl Opt 1996; 35:5613-5619. [PMID: 21127565 DOI: 10.1364/ao.35.005613] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Highly reflective LaF(3)/MgF(2) systems for a wavelength of 248 nm on MgF(2) and crystalline quartz substrates were investigated. The influence of laser conditioning on damage threshold and absorptance was remarkable in those coatings that had a high initial absorptance. Monitoring with a laser calorimeter revealed the conditioning effect to be a function of the irradiation dose rather than of energy density or pulse rate. Furthermore, x-ray photoelectron spectroscopy and transmission electron microscopy investigations showed that conditioning induces stoichiometric and structural changes in the multilayers, especially in near-surface sublayers, whereas scanning electron microscopy and atomic force microscopy investigations indicated that the surface remains unchanged.
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26
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Mademann D, Raupach L, Wei�brodt P, Hacker E, Kaiser U, Kaiser N. Investigation of thin fluoride films for optical applications by surface analytical methods and electron microscopy. Anal Bioanal Chem 1993. [DOI: 10.1007/bf00321407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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27
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Hacker E, Krause D, Kossowicz J. Investigations on the rectal absorption of chloramphenicol in rabbits after tenside use. Pharmazie 1992; 47:275-6. [PMID: 1518885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The rectal dose of 16 mg.kg-1 b.w. chloramphenicol (1) without additional tensides did not result in any detectable absorption of effective substance. In contrast, 0.04% of the N-lauroylleucine tenside allowed a rectal absorption having the same effect as that of an injection of the same quantities of effective substance. The tenside efficiency was not influenced by varied suppository masses (gelatine or Rosupol U, respectively), or by the pH value of the suppositories. Different particle sizes (less than 40 microns or greater than or equal to 40 up to less than 400 microns) of 1 did not change the absorption rate (AUC0-5h) significantly, but did change the plasma concentration-time profile considerably.
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Affiliation(s)
- E Hacker
- Department for Research, Berlin-Chemie AG
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28
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Hacker E, Kossowicz J, Milde K. The protection of insulin against proteolytic processes after rectal application to normoglycemic rabbits. Pharmazie 1991; 46:125-7. [PMID: 1712971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In order to improve the bioavailability of insulin after rectal application to rabbits, the influence of surface-active amino acid-fatty acid condensate on absorption and, the effects of a protease inhibitor (aprotinine), of a disinfectant (methyl-hydroxybenzoate) and of chemotherapeutics (chloramphenicol, ambazone and metronidazole) were investigated. Only the application of methylhydroxybenzoate, ambazone and of metronidazole, which inhibit the anaerobic bacterial flora, improved bioavailability significantly. The examinations show that the proteolytic activity of the anaerobic bacterial flora causes the loss of the biological activity of peptides in the rectum.
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Affiliation(s)
- E Hacker
- Pharmacological Department of Berlin-Chemie
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29
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Losse G, Müller F, Fischer S, Wunderlich G, Hacker E. [Scintigraphy of sustained-release agar-embedded insulin suppositories]. Pharmazie 1989; 44:331-2. [PMID: 2672037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In earlier publications [1-3] we reported on the retardation and protective effect of insulin-agar-embeddings in triglyceride suppositories by in vitro and in vivo tests on rabbits. The discovered effects were visually followed by gammascintigraphic test of adequate rectally applied 131I-insulin-specimens in the rectum and thyroid gland and, in relation with the glucose lowering course, the liberation, distribution and bioavailability of the immobilized hormone was illustrated.
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Affiliation(s)
- G Losse
- Sektion Chemie der Technischen Universität Dresden
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30
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Losse G, Müler F, Kossowicz J, Hacker E. [The application of insulin-agar embedding in suppositories for controlled hormone liberation and dose lowering]. Pharmazie 1989; 44:129-30. [PMID: 2664818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
By embedding of insulin in agar a significant retardation as well as a protective effect for the hormone is obtained. As demonstrated on in vivo animal experiments, this embedding method in dependence on the insulin concentration and particle size of the polymeric matrix allows to prepare rectal insulin applications with remarkable depot effects. Alternatively in combination with resorption promoting tensides it permits to lower the administered hormone doses to a order of magnitude reaching those used for parenteral insulin applications.
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Affiliation(s)
- G Losse
- Sektion Chemie der Technischen Universität Dresden, Wissenschaftsbereich Lebensmittelchemie und Technische Biochemie
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31
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