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Bell S, Campbell J, Watters C, O'Neil M, Almond A, Buck K, Carr EJ, Cousland Z, Findlay M, Joss N, Metcalfe W, Spalding E, Methven S, Mark PB. The impact of Omicron on outcomes following infection with SARS-CoV-2 in patients with kidney failure in Scotland. Clin Kidney J 2022; 16:197-200. [PMID: 36721388 PMCID: PMC9384465 DOI: 10.1093/ckj/sfac173] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Indexed: 02/03/2023] Open
Affiliation(s)
| | - Jacqueline Campbell
- The Scottish Renal Registry, Scottish Health Audits, Public Health Scotland, Glasgow, UK
| | - Chrissie Watters
- The Scottish Renal Registry, Scottish Health Audits, Public Health Scotland, Glasgow, UK
| | - Martin O'Neil
- The Scottish Renal Registry, Scottish Health Audits, Public Health Scotland, Glasgow, UK
| | | | | | - Edward J Carr
- Cell Biology of Infection Laboratory, Francis Crick Institute, London, UK
| | | | - Mark Findlay
- Glasgow Renal & Transplant Unit, Queen Elizabeth University Hospital, Glasgow, UK
| | - Nicola Joss
- Renal Unit, Raigmore Hospital, Inverness, UK
| | - Wendy Metcalfe
- Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | | | - Shona Methven
- Department of Renal Medicine, Aberdeen Royal Infirmary, Aberdeen, UK
| | - Patrick B Mark
- Glasgow Renal & Transplant Unit, Queen Elizabeth University Hospital, Glasgow, UK,Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
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Bell S, Campbell J, Lambourg E, Watters C, O'Neil M, Almond A, Buck K, Carr E, Clark L, Cousland Z, Findlay M, Joss N, Metcalfe W, Petrie M, Spalding E, Traynor J, Sanu V, Thomson P, Methven S, Mark P. The Impact of Vaccination on Incidence and Outcomes of SARS-CoV-2 Infection in Patients with Kidney Failure in Scotland. J Am Soc Nephrol 2022; 33:677-686. [PMID: 35110363 PMCID: PMC8970454 DOI: 10.1681/asn.2022010046] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 01/15/2022] [Indexed: 12/15/2022] Open
Abstract
Background: Patients with kidney failure requiring kidney replacement therapy (KRT) are at high risk of complications and death following SARS-CoV-2 infection with variable antibody responses to vaccination reported. We investigated the effects of COVID-19 vaccination on incidence of infection, hospitalization and death of COVID-19 infection. Methods: Study design was an observational data linkage cohort study. Multiple healthcare datasets were linked to ascertain all SARS-CoV-2 testing, vaccination, hospitalization, and mortality data for all patients treated with KRT in Scotland, from the start of the pandemic over a period of 20 months. Descriptive statistics, survival analyses, and vaccine effectiveness were calculated. Results: As of 19th September 2021, 93% (n=5281) of the established KRT population in Scotland had received two doses of an approved SARS-CoV-2 vaccine. Over the study period, there were 814 cases of SARS-CoV-2 infection (15.1% of the KRT population). Vaccine effectiveness against infection and hospitalization was 33% (95% CI 0-52) and 38% (95% CI 0-57) respectively. 9.2% of fully vaccinated individuals died within 28 days of a SARS-CoV-2 positive PCR test (7% dialysis patients and 10% kidney transplant recipients). This compares to <0.1% of the vaccinated Scottish population being admitted to hospital or dying death due to COVID19 during that period. Conclusions: These data demonstrate a primary vaccine course of two doses has limited impact on COVID-19 infection and its complications in patients treated with KRT. Adjunctive strategies to reduce risk of both COVID-19 infection and its complications in this population are urgently required.
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Affiliation(s)
- Samira Bell
- S Bell, Division of Population Health and Genomics, University of Dundee School of Medicine, Dundee, United Kingdom of Great Britain and Northern Ireland
| | - Jacqueline Campbell
- J Campbell, The Scottish Renal Registry, Scottish Health Audits, Public Health Scotland Glasgow Office, Glasgow, United Kingdom of Great Britain and Northern Ireland
| | - Emilie Lambourg
- E Lambourg, Division of Population Health and Genomics, University of Dundee School of Medicine, Dundee, United Kingdom of Great Britain and Northern Ireland
| | - Chrissie Watters
- C Watters, The Scottish Renal Registry, Scottish Health Audits, Public Health Scotland Glasgow Office, Glasgow, United Kingdom of Great Britain and Northern Ireland
| | - Martin O'Neil
- M O'Neil, The Scottish Renal Registry, Scottish Health Audits, Public Health Scotland Glasgow Office, Glasgow, United Kingdom of Great Britain and Northern Ireland
| | - Alison Almond
- A Almond, Renal Unit, Mountainhall Treatment Centre, Dumfries, United Kingdom of Great Britain and Northern Ireland
| | - Katharine Buck
- K Buck, Renal Unit, Victoria Hospital, Kirkcaldy, United Kingdom of Great Britain and Northern Ireland
| | - Edward Carr
- E Carr, Cell Biology of Infection Laboratory, The Francis Crick Institute, London, United Kingdom of Great Britain and Northern Ireland
| | - Laura Clark
- L Clark, Department of Renal Medicine, Aberdeen Royal Infirmary, Aberdeen, United Kingdom of Great Britain and Northern Ireland
| | - Zoe Cousland
- Z Cousland, Renal Unit, Monklands Hospital, Airdrie, United Kingdom of Great Britain and Northern Ireland
| | - Mark Findlay
- M Findlay, Glasgow Renal & Transplant Unit, Queen Elizabeth University Hospital, Glasgow, United Kingdom of Great Britain and Northern Ireland
| | - Nicola Joss
- N Joss, Renal Unit, Raigmore Hospital, Inverness, United Kingdom of Great Britain and Northern Ireland
| | - Wendy Metcalfe
- W Metcalfe, Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom of Great Britain and Northern Ireland
| | - Michaela Petrie
- M Petrie, Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom of Great Britain and Northern Ireland
| | - Elaine Spalding
- E Spalding, Renal Unit, University Hospital Crosshouse, Kilmarnock, United Kingdom of Great Britain and Northern Ireland
| | - Jamie Traynor
- J Traynor, Glasgow Renal & Transplant Unit, Queen Elizabeth University Hospital, Glasgow, United Kingdom of Great Britain and Northern Ireland
| | - Vinod Sanu
- V Sanu, Renal Unit, Ninewells Hospital and Medical School, Dundee, United Kingdom of Great Britain and Northern Ireland
| | - Peter Thomson
- P Thomson, Glasgow Renal & Transplant Unit, Queen Elizabeth University Hospital, Glasgow, United Kingdom of Great Britain and Northern Ireland
| | - Shona Methven
- S Methven, Department of Renal Medicine, Aberdeen Royal Infirmary, Aberdeen, United Kingdom of Great Britain and Northern Ireland
| | - Patrick Mark
- P Mark, Glasgow Renal & Transplant Unit, Queen Elizabeth University Hospital Campus, Glasgow, United Kingdom of Great Britain and Northern Ireland
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Bell S, Campbell J, McDonald J, O'Neill M, Watters C, Buck K, Cousland Z, Findlay M, Lone NI, Metcalfe W, Methven S, Peel R, Almond A, Sanu V, Spalding E, Thomson PC, Mark PB, Traynor JP. COVID-19 in patients undergoing chronic kidney replacement therapy and kidney transplant recipients in Scotland: findings and experience from the Scottish renal registry. BMC Nephrol 2020; 21:419. [PMID: 33004002 PMCID: PMC7528715 DOI: 10.1186/s12882-020-02061-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/09/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Infection with the severe acute respiratory coronavirus 2 (SARS-CoV-2) has led to a worldwide pandemic with coronavirus disease 2019 (COVID-19), the disease caused by SARS-CoV-2, overwhelming healthcare systems globally. Preliminary reports suggest a high incidence of infection and mortality with SARS-CoV-2 in patients receiving kidney replacement therapy (KRT). The aims of this study are to report characteristics, rates and outcomes of all patients affected by infection with SARS-CoV-2 undergoing KRT in Scotland. METHODS Study design was an observational cohort study. Data were linked between the Scottish Renal Registry, Health Protection Scotland and the Scottish Intensive Care Society Audit Group national data sets using a unique patient identifier (Community Health Index (CHI)) for each individual by the Public Health and Intelligence unit of Public Health, Scotland. Descriptive statistics and survival analyses were performed. RESULTS During the period 1st March 2020 to 31st May 2020, 110 patients receiving KRT tested positive for SARS-CoV-2 amounting to 2% of the prevalent KRT population. Of those affected, 86 were receiving haemodialysis or peritoneal dialysis and 24 had a renal transplant. Patients who tested positive were older and more likely to reside in more deprived postcodes. Mortality was high at 26.7% in the dialysis patients and 29.2% in the transplant patients. CONCLUSION The rate of detected SARS-CoV-2 in people receiving KRT in Scotland was relatively low but with a high mortality for those demonstrating infection. Although impossible to confirm, it appears that the measures taken within dialysis units coupled with the national shielding policy, have been effective in protecting this population from infection.
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Affiliation(s)
- Samira Bell
- Division of Population Health and Genomics, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK.
- The Scottish Renal Registry, Scottish Health Audits, Public Health & Intelligence, Information Services, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, UK.
| | - Jacqueline Campbell
- The Scottish Renal Registry, Scottish Health Audits, Public Health & Intelligence, Information Services, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, UK
| | - Jackie McDonald
- The Scottish Renal Registry, Scottish Health Audits, Public Health & Intelligence, Information Services, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, UK
| | - Martin O'Neill
- The Scottish Renal Registry, Scottish Health Audits, Public Health & Intelligence, Information Services, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, UK
| | - Chrissie Watters
- The Scottish Renal Registry, Scottish Health Audits, Public Health & Intelligence, Information Services, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, UK
| | | | - Zoe Cousland
- Renal Unit, Monklands Hospital, Monkscourt Avenue, Airdrie, ML6 0JS, UK
| | - Mark Findlay
- Glasgow Renal & Transplant Unit, Queen Elizabeth University Hospital, Glasgow, G51 4TF, UK
| | - Nazir I Lone
- Usher Institute, University of Edinburgh, Teviot Place, Edinburgh, EH8 9AG, UK
| | - Wendy Metcalfe
- Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh Bioquarter, Edinburgh, EH16 4SA, UK
| | - Shona Methven
- Department of Renal Medicine, Aberdeen Royal Infirmary, Foresterhill Health Campus, Foresterhill Rd, Aberdeen, AB25 2ZN, UK
| | - Robert Peel
- Renal Unit, Raigmore Hospital, Old Perth Road, Inverness, IV2 3UJ, UK
| | - Alison Almond
- Renal Unit, Mountainhall Treatment Centre, Dumfries, DG1 4AP, UK
| | - Vinod Sanu
- Renal Unit, Ninewells Hospital, Dundee, DD1 9SY, UK
| | - Elaine Spalding
- Renal Unit, University Hospital Crosshouse, Crosshouse, KA2 0BE, UK
| | - Peter C Thomson
- Glasgow Renal & Transplant Unit, Queen Elizabeth University Hospital, Glasgow, G51 4TF, UK
| | - Patrick B Mark
- Glasgow Renal & Transplant Unit, Queen Elizabeth University Hospital, Glasgow, G51 4TF, UK
| | - Jamie P Traynor
- The Scottish Renal Registry, Scottish Health Audits, Public Health & Intelligence, Information Services, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, UK
- Glasgow Renal & Transplant Unit, Queen Elizabeth University Hospital, Glasgow, G51 4TF, UK
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Shaw L, Corradini V, Blennow K, Buck K, Eichenlaub U, Lifke V, Widmann M, Simon M, Hansson O. FV 3 Analysis of cerebrospinal fluid (CSF) biomarkers to predict risk of clinical decline and progression to dementia in patients with mild cognitive impairment and mild cognitive symptoms. Clin Neurophysiol 2019. [DOI: 10.1016/j.clinph.2019.04.613] [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: 11/16/2022]
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Olson JA, Gibbens Y, Tram K, Kempenich J, Novakovich J, Buck K, Dehn J. Identification of a 10/10 matched donor for patients with an uncommon haplotype is unlikely. HLA 2017; 89:77-81. [DOI: 10.1111/tan.12946] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 11/28/2016] [Accepted: 11/29/2016] [Indexed: 12/27/2022]
Affiliation(s)
- J. A. Olson
- Immunogenetic Operations and Research, National Marrow Donor Program; Minneapolis Minnesota
| | - Y. Gibbens
- Immunogenetic Operations and Research, National Marrow Donor Program; Minneapolis Minnesota
| | - K. Tram
- Immunogenetic Operations and Research, National Marrow Donor Program; Minneapolis Minnesota
| | - J. Kempenich
- Immunogenetic Operations and Research, National Marrow Donor Program; Minneapolis Minnesota
| | - J. Novakovich
- Immunogenetic Operations and Research, National Marrow Donor Program; Minneapolis Minnesota
| | - K. Buck
- Immunogenetic Operations and Research, National Marrow Donor Program; Minneapolis Minnesota
| | - J. Dehn
- Immunogenetic Operations and Research, National Marrow Donor Program; Minneapolis Minnesota
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Vrieling A, Buck K, Seibold P, Heinz J, Obi N, Flesch-Janys D, Chang-Claude J. Dietary patterns and survival in German postmenopausal breast cancer survivors. Br J Cancer 2012; 108:188-92. [PMID: 23169282 PMCID: PMC3553521 DOI: 10.1038/bjc.2012.521] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Research on the association between dietary patterns and breast cancer survival is very limited. METHODS A prospective follow-up study was conducted in Germany, including 2522 postmenopausal breast cancer patients diagnosed in 2001-2005 with available food frequency questionnaire data. Vital status, causes of death, and recurrences were verified through the end of 2009. Principle component factor analysis was used to identify pre-diagnostic dietary patterns. Hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated with Cox proportional hazards models. RESULTS Two major dietary patterns were identified: 'healthy' (high intakes of vegetables, fruits, vegetable oil, sauces/condiments, and soups/bouillons) and 'unhealthy' (high intakes of red meat, processed meat, and deep-frying fat). Increasing consumption of an 'unhealthy' dietary pattern was associated with an increased risk of non-breast cancer mortality (highest vs lowest quartile: HR, 3.69; 95% CI, 1.66-8.17; P-trend <0.001). No associations with breast cancer-specific mortality and breast cancer recurrence were found. The 'healthy' dietary pattern was inversely associated with overall mortality (HR, 0.74; 95% CI, 0.47-1.15; P-trend=0.02) and breast cancer recurrence (HR, 0.71; 95% CI, 0.48-1.06; P-trend=0.02) in stage I-IIIa patients only. CONCLUSION Increasing intake of an 'unhealthy' pre-diagnostic dietary pattern may increase the risk of non-breast cancer mortality, whereas increasing intake of a 'healthy' pattern may reduce the risk of overall mortality and breast cancer recurrence.
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Affiliation(s)
- A Vrieling
- Unit of Genetic Epidemiology, Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120 Heidelberg, Germany
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Vrieling A, Buck K, Seibold P, Heinz J, Obi N, Flesch-Janys D, Chang-Claude J. 1185 Dietary Patterns and Postmenopausal Breast Cancer Survival –a Prospective Patient Cohort Study. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71779-3] [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: 11/26/2022]
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Dehn J, Maus T, Buck K, Hermanson J, Beraun-Salchert Y, Wood J, Hsu S. A/B Only Typed Donors: Possible But Improbable 6/6 HLA Allele Matches. Biol Blood Marrow Transplant 2012. [DOI: 10.1016/j.bbmt.2011.12.534] [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: 12/01/2022]
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Buck K, Zaineddin AK, Vrieling A, Heinz J, Linseisen J, Flesch-Janys D, Chang-Claude J. Estimated enterolignans, lignan-rich foods, and fibre in relation to survival after postmenopausal breast cancer. Br J Cancer 2011; 105:1151-7. [PMID: 21915130 PMCID: PMC3208499 DOI: 10.1038/bjc.2011.374] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Background: Lignans – oestrogenic substances present in various foods – are associated with postmenopausal breast cancer risk, but not much is known regarding their effects on survival. Methods: In a follow-up study of 2653 postmenopausal breast cancer patients diagnosed between 2001 and 2005, vital status and causes of death were verified through end of 2009. Hazard ratios (HRs) and 95% confidence intervals (CIs) for estimated enterolignans, lignan-rich foods, and dietary fibre in relation to overall survival (OS) and breast cancer-specific survival (BCSS) were assessed using Cox proportional hazards models stratified by age at diagnosis and adjusted for prognostic/confounding factors. Results: Median follow-up time was 6.4 years, and 321 women died, 235 with breast cancer. High estimated enterolactone and enterodiol levels were associated with significantly lower overall mortality (highest quintile, HR=0.60, 95% CI=0.40–0.89, PTrend=0.02 and HR=0.63, 95% CI=0.42–0.95, PTrend=0.02, respectively). Fibre intake was also associated with a significantly lower overall mortality. Differentiated by median fibre intake, associations with estimated enterolignans were still evident at low but not high fibre intake. There was no effect modification by oestrogen receptor status and menopausal hormone therapy. Conclusion: Postmenopausal breast cancer patients with high estimated enterolignans may have a better survival.
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Affiliation(s)
- K Buck
- Unit of Genetic Epidemiology, Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, Heidelberg, Germany
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Zaineddin A, Vrieling A, Buck K, Becker S, Kaaks R, Flesch-Janys D, Steindorf K, Chang-Claude J. Cigarette smoking and endogenous sex hormone levels in postmenopausal women. Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266164] [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: 10/19/2022]
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Buck K, Zaineddin A, Vrieling A, Heinz J, Flesch-Janys D, Chang-Claude J. Dietary intake of phytoestrogens and phytoestrogen-rich foods in relation to survival after breast cancer in postmenopausal women. Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266372] [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: 10/19/2022]
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Buck K, Ferger B. Comparison of intrastriatal administration of noradrenaline and l-DOPA on dyskinetic movements: a bilateral reverse in vivo microdialysis study in 6-hydroxydopamine-lesioned rats. Neuroscience 2008; 159:16-20. [PMID: 19146929 DOI: 10.1016/j.neuroscience.2008.12.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2008] [Revised: 12/10/2008] [Accepted: 12/17/2008] [Indexed: 11/29/2022]
Abstract
l-DOPA-induced dyskinesia is known as involuntary debilitating movement, which limits quality of life in patients suffering from Parkinson's disease. The present study focuses on the role of the neurotransmitter noradrenaline (NA) on dyskinetic movements in comparison to the effect of l-DOPA. Rats were unilaterally lesioned with 6-hydroxydopamine and treated with l-DOPA/benserazide (6/15 mg/kg, p.o.) to induce stable dyskinetic movements. On the day of the experiment, NA (0.04 nmol/min, 0.4 nmol/min) and l-DOPA (0.04 nmol/min, 0.4 nmol/min) were perfused into the lesioned and non-lesioned striatum of dyskinetic rats using the reverse in vivo microdialysis technique. Neither NA nor l-DOPA treatment of the non-lesioned striatum produced any dyskinetic behavior. In contrast, administration of l-DOPA 0.4 nmol/min into the lesioned striatum led to a significant increase in dyskinesia indicated by abnormal axial, limb and orolingual movements. Notably, perfusion with NA 0.4 nmol/min into the lesioned striatum revealed a highly significant induction of dyskinetic movements, which are similar to the dyskinesia subtype profile of l-DOPA. In conclusion, NA is as potent as l-DOPA to express dyskinetic movements in l-DOPA-primed rats.
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Affiliation(s)
- K Buck
- Department of CNS Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Strasse 65, 88397 Biberach, Germany
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Husbands W, Browne G, Caswell J, Buck K, Braybrook D, Roberts J, Gafni A, Taylor A. Case management community care for people living with HIV/AIDS (PLHAs). AIDS Care 2008; 19:1065-72. [PMID: 17852006 DOI: 10.1080/09540120701294302] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A case management approach to support services was developed in a Toronto-based AIDS service organization (ASO) in Canada to support people living with HIV/AIDS (PLHAs) whose needs could not be addressed through usual self-directed access to services. It was therefore important to determine which PLHAs would benefit most from case management. New clients and those who had been receiving support services from an ASO were randomized to receive either self-directed use of support services or self-directed care plus strengths-based case management for a six-month period. Results indicated that those who benefited most from case management were very depressed at baseline. Strengths-based case management compared to usual self-directed care markedly improved the physical, social and mental health function of very depressed PLHAs, and reduced their risk behaviours. In addition, the case management participants' use of community services was associated with an economically important, though not statistically significant, $3,300 per person per annum lower expenditure for the use of all direct health and social services. Although more research is warranted, this research demonstrates that ASOs and funders ought to seriously consider implementing a case management approach to practical assistance for PLHAs with depression.
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Affiliation(s)
- W Husbands
- AIDS Committee of Toronto, Toronto, Canada.
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Davis J, Buck K, Dorr L, Kempenich J, Beduhn E, Maus T, Setterholm M, Chitphakdithai P. Evaluation of unrelated donor search strategy proficiencies. Biol Blood Marrow Transplant 2006. [DOI: 10.1016/j.bbmt.2005.11.095] [Citation(s) in RCA: 1] [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: 11/28/2022]
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Abstract
The collapse of the Soviet Union in 1989 substantially increased the numbers of refugees and immigrants to the United States from the former Soviet Union. Little research has been conducted with this population although studies found that immigrant's access to health care services are based on patterns of utilization in their countries of origin. The purpose of this study was to learn about the experiences of immigrant women from three former Soviet Republics (Belarus, Russia, and Ukraine) with women's health care services. Three focus groups of women were formed; ages 20-30, 37-46, and 60 and above. A focus-group guide was used to learn about their health care experiences. These immigrant women did access health care services based on patterns of utilization in their countries of origin. Greater understanding of immigrant populations' cultural patterns of health care utilization is needed to improve access and delivery of health care services to these populations.
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Affiliation(s)
- L Louise Ivanov
- University of Virginia, School of Nursing, Charlottesville, Virginia, 22903-3302, USA
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Buck K, Blumstein M, Mottaghy FM, Krause BJ, Glatting G, Neumaier B, Hetzel M, Reske SN. Fusionierte Bildgebung mit PET/CT bei Lungenrundherden: Einfluss auf das Staging des Bronchialkarzinoms. ROFO-FORTSCHR RONTG 2005. [DOI: 10.1055/s-2005-867491] [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: 10/19/2022]
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Buck K. [Success for specialty-specific radiology]. Urologe A 2003; 42:993. [PMID: 12959084] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Affiliation(s)
- K Buck
- Ausschusses Bildgebende Verfahren im BDU
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Dancer A, Buck K, Hamery P, Parmentier G. Hearing Protection in the Military Environment. Noise Health 2003; 2:1-16. [PMID: 12689481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
Abstract
The present state of passive (linear and non-linear) and active techniques for hearing protection in the military environment is reviewed. Solutions which allow to protect the ear from large continuous and high-level impulse noises while preserving the operational abilities of the personnel (detection, localisation, communication.) are emphasised.
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Affiliation(s)
- A. Dancer
- French-German Research Institute of Saint-Louis, 5 rue du general Cassagnou, BP 34, 68301 SAINT-LOUIS Cedex, France
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Hitzemann R, Malmanger B, Cooper S, Coulombe S, Reed C, Demarest K, Koyner J, Cipp L, Flint J, Talbot C, Rademacher B, Buck K, McCaughran J. Multiple cross mapping (MCM) markedly improves the localization of a QTL for ethanol-induced activation. Genes Brain Behav 2002; 1:214-22. [PMID: 12882366 DOI: 10.1034/j.1601-183x.2002.10403.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study examines the use of multiple cross mapping (MCM) to reduce the interval for an ethanol response QTL on mouse chromosome 1. The phenotype is the acute locomotor response to a 1.5-g/kg i.p. dose of ethanol. The MCM panel consisted of the six unique intercrosses that can be obtained from the C57BL/6J (B6), DBA/2J (D2), BALB/cJ (C) and LP/J (LP) inbred mouse strains (N > or = 600/cross). Ethanol response QTL were detected only with the B6xD2 and B6xC intercrosses. For both crosses, the D2 and C alleles were dominant and decreased ethanol response. The QTL information was used to develop an algorithm for sorting and editing the chromosome 1 Mit microsatellite marker set (http://www.jax.org). This process yielded a cluster of markers between 82 and 85cM (MGI). Evidence that the QTL was localized in or near this interval was obtained by the analysis of a sample (n = 550) of advanced cross heterogenous stock animals. In addition, it was observed that one of the BXD recombinant inbred strains (BXD-32) had a recombination in the interval of interest which produced the expected change in behavior. Overall, the data obtained suggest that the information available within existing genetic maps coupled with MCM data can be used to reduce the QTL interval. In addition, the MCM data set can be used to interrogate gene expression data to estimate which polymorphisms within the interval of interest are relevant to the QTL.
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Affiliation(s)
- R Hitzemann
- Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, OR 97201-3098, USA.
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Buck K. Grow and go: make sure career-building moves help you and your practice. MGMA Connex 2001; 1:17, 19. [PMID: 11732477] [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] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- K Buck
- Desert West OB-Gyn, Ltd., Glendale, AZ, USA
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Buck K, Lischka T, Dorow J, Crabbe J. Mapping quantitative trait loci that regulate sensitivity and tolerance to quinpirole, a dopamine mimetic selective for D(2)/D(3) receptors. Am J Med Genet 2000; 96:696-705. [PMID: 11054779 DOI: 10.1002/1096-8628(20001009)96:5<696::aid-ajmg17>3.0.co;2-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Acute sensitivity and tolerance to quinpirole (a dopamine mimetic with selectivity for D(2)/D(3) dopamine receptors) were evaluated in the C57BL/6J and DBA/2J inbred strains of mice, 24 of their BXD recombinant inbred strains, and 233 F(2) mice. Baseline locomotor activity, locomotor activity following 0.03 mg/kg quinpirole (and 0. 01 mg/kg in BXD mice), body temperature following 1 mg/kg quinpirole, and hypothermic tolerance following 2 or 3 days of quinpirole administration were evaluated. Quantitative trait locus (QTL) analysis was employed to identify genetic determinants of baseline locomotor activity and five behavioral responses to quinpirole. We examined correlated allelic variation in genetic markers of known chromosomal location with variation in each of these phenotypes. We definitively mapped a QTL on Chromosome (Chr) 9 linked to the D(2) dopamine receptor gene, Drd2, for hypothermic sensitivity to quinpirole, and identify a suggestive QTL in the same chromosomal region for tolerance to quinpirole after repeated treatments. Suggestive QTLs were also identified on Chr 19 for sensitivity and tolerance to quinpirole-induced hypothermia and for baseline locomotor activity; on Chr 15 for locomotor sensitivity to quinpirole; and on Chr 13 and 5 for baseline locomotor activity. Our results indicate that genetic differences in quinpirole sensitivity and tolerance are associated with QTLs near Drd2, and that baseline locomotor activity is associated with a suggestive QTL in proximity to the dopamine transporter gene Dat1. These data suggest that the genes influencing locomotor activity, dopamine mimetic sensitivity, and tolerance do not overlap completely.
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Affiliation(s)
- K Buck
- Department of Behavioral Neuroscience and Portland Alcohol Research Center, Oregon Health Sciences University, and Department of Veterans Affairs Research Service, Portland, Oregon 97201, USA.
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Kline DW, Buck K, Sell Y, Bolan TL, Dewar RE. Older observers' tolerance of optical blur: age differences in the identification of defocused text signs. Hum Factors 1999; 41:356-364. [PMID: 10665204 DOI: 10.1518/001872099779611049] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
To determine if visual aging affects the ability to identify blurred text signs in daytime or nighttime viewing conditions, the photopic and mesopic legibility thresholds of young and old adult observers were compared at three levels of optically induced acuity (Experiment 1). For both age groups, legibility was reduced by nighttime luminance and degraded acuity. Surprisingly, older observers were better than younger ones in identifying defocused (optically blurred) text in both daytime and nighttime conditions. In Experiment 2, older observers were also superior to younger ones in identifying defocused standard and spatially matched novel text signs. These findings indicate that older observers' tolerance of optical blur is a generic ability, rather than one explained by familiarity with the low-pass optical profile of specific signs. Consistent with the notion that factors beyond acuity contribute more importantly to text legibility for older than for younger observers, acuity was a stronger predictor of legibility thresholds in the younger group. Actual or potential applications of this research include the need to consider functional acuity in visual screening protocols and the design of text displays, as well as the utilization of compensatory letter-recognition training for older observers or others with diminished acuity.
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Affiliation(s)
- D W Kline
- Department of Psychology, University of Calgary, Alberta, Canada.
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Abstract
Pleomorphic hyalinized angiectatic tumor of soft parts is a recently described neoplasm that most commonly affects the lower extremities. It is locally aggressive but has not been known to metastasize. This article presents a case of a softball-sized tumor on the dorsum of the foot that was identified as pleomorphic hyalinized angiectatic tumor of soft parts. Previously, it would have been misdiagnosed and treated as either a neurilemoma or a malignant fibrous histiocytoma.
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Affiliation(s)
- S P Brim
- Medical Foot Center, Spokane, WA 99206, USA
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Buck K, Metten P, Belknap J, Crabbe J. Quantitative trait loci affecting risk for pentobarbital withdrawal map near alcohol withdrawal loci on mouse chromosomes 1, 4, and 11. Mamm Genome 1999; 10:431-7. [PMID: 10337613 DOI: 10.1007/s003359901018] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Barbiturate dependence is associated with the development of physiological dependence (withdrawal), tolerance, or a maladaptive pattern of drug use. Analysis of strain and individual differences with animal models for physiological dependence liability are useful means to identify potential genetic determinants of liability in humans. Behavioral and quantitative trait locus (QTL) mapping analyses were conducted with mice that are resistant versus sensitive to pentobarbital withdrawal. With a multistage genetic mapping strategy, a pentobarbital withdrawal QTL (Pbw1) was mapped to the distal region of mouse Chromosome (Chr) 1 and may be identical to an alcohol withdrawal QTL mapped to this chromosomal region. Two suggestive QTLs for pentobarbital withdrawal, both in proximity to QTLs definitely mapped for alcohol withdrawal, were also tentatively identified. These were on Chr 11 in proximity to a gene cluster including several members of the GABAA receptor gene family, and on Chr 4 near a locus associated with beta-carboline-induced seizure severity. These data represent the first detection and mapping of loci influencing risk for physiological dependence on barbiturates, and suggest the involvement of common genes in physiological dependence on pentobarbital and alcohol.
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Affiliation(s)
- K Buck
- Department of Behavioral Neuroscience, Oregon Health Sciences University, Portland, USA
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Dancer A, Buck K, Parmentier G, Hamery P. The specific problems of noise in military life. Scand Audiol Suppl 1998; 48:123-30. [PMID: 9505305] [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: 02/06/2023]
Abstract
In military life, noise has unusual characteristics and constitutes a serious hazard for hearing. Hearing impairments due to the exposure to weapon noises represent an important prejudice for the health of many soldiers. A special attention is given to (i) the "critical level", (ii) the frequency localization of the threshold shifts, (iii) the actual influence of the protective reflexes of the ear, (iv) the existence of delayed threshold shifts following impulse noise exposures, and (v) the interest of the medical treatment of the acoustic trauma. Damage risk criteria for weapon noises are compared: criteria using the (A-weighted) isoenergy principle represent the best present solution (LAeq = 85 dB). Specific problems related to the use of hearing protection are also discussed.
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Affiliation(s)
- A Dancer
- French-German Research Institute of Saint-Louis, France
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Horvath KD, Whelan RL, Lier B, Viscomi S, Barry L, Buck K, Bessler M. The effects of elevated intraabdominal pressure, hypercarbia, and positioning on the hemodynamic responses to laparoscopic colectomy in pigs. Surg Endosc 1998; 12:107-14. [PMID: 9479722 DOI: 10.1007/s004649900608] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND This study investigated three factors postulated to be sources of physiological stress in laparoscopic surgery: hypercarbia, elevated intraabdominal pressure, and the steep Trendelenburg position. Our research was designed to define the effects of each of these potential stressors on hemodynamic responses observed during laparoscopic colectomy in pigs. METHODS Twenty-four pigs were randomized into the following four groups, based on the method for obtaining surgical exposure while a colectomy or laparoscopic-assisted colectomy was performed: Open surgery (n = 6), CO2 pneumoperitoneum (n = 6), Helium pneumoperitoneum (n = 6), and abdominal wall Lifter (n = 6). The animals were paralyzed with minute ventilation adjusted. All animals underwent extensive pulmonary and hemodynamic monitoring with measurements of the following parameters: RR, Vt, minute ventilation, O2, sat, ETCO2, PVR, HR, MAP, CO, PAP, CVP, PCWP, SV, LVSWI, DO2, and VO2. The laparoscopic pigs were placed in the steep Trendelenburg position during surgery. RESULTS The effect of a CO pneumoperitoneum was to increase PaCO2 PVR and cause an acidemia that could not be prevented by an increase in minute ventilation. Elevated intraabdominal pressure decreased UO. Both pneumoperitoneum groups had a fourfold increase in IVCP, a measure of intraabdominal pressure. Some of this increase was due to placement into the Trendelenburg position; IVCP increased to a lesser degree in the Lifter group. The steep Trendelenburg position caused significant increases in PAP, CVP, and PCWP; however, a contributory effect of elevated intraabdominal pressure cannot be ruled out. None of these procedures had any significant effect on the HR or MAP. There was a significant increase in CO in the CO2 and Lifter groups; however, when CO was controlled for HR effects, there was no significant effect on SV from any of these different procedures. LVSWI, DO2, and VO2 were not affected by any of the different exposure methods. CONCLUSIONS The effects of laparoscopic surgery and open surgery on hemodynamic responses are minimal, and no one method is superior to another when performed in pigs that are healthy, hydrated, and hyperventilated to keep ETCO2 < 40. However, since elderly and sick patients have a lower threshold for physiologic decompensation, we can infer that the small hemodynamic changes noted in this study might become significant factors when surgery is performed on compromised patients. The finding that an abdominal wall lifting device causes the fewest metabolic and hemodynamic effects makes its use an important consideration when performing laparoscopic surgery in patients with cardiopulmonary compromise, hemodynamic instability, or any preexisting renal insufficiency.
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Affiliation(s)
- K D Horvath
- Department of Surgery, College of Physicians and Surgeons, Columbia University and Presbyterian Hospital, New York, NY 10032, USA
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Buck K, Feehally J. Diabetes and renal failure in Indo-Asians in the UK--a paradigm for the study of disease susceptibility. Nephrol Dial Transplant 1997; 12:1555-7. [PMID: 9269626 DOI: 10.1093/ndt/12.8.1555] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Clauss KU, Buck K, Abraham W. The photochemistry of acyl azides--IX. Direct and sensitized photolytic generation of acylnitrenes for cycloaddition reactions. Tetrahedron 1995. [DOI: 10.1016/0040-4020(95)94786-n] [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: 10/17/2022]
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Martin JH, Coale KH, Johnson KS, Fitzwater SE, Gordon RM, Tanner SJ, Hunter CN, Elrod VA, Nowicki JL, Coley TL, Barber RT, Lindley S, Watson AJ, Van Scoy K, Law CS, Liddicoat MI, Ling R, Stanton T, Stockel J, Collins C, Anderson A, Bidigare R, Ondrusek M, Latasa M, Millero FJ, Lee K, Yao W, Zhang JZ, Friederich G, Sakamoto C, Chavez F, Buck K, Kolber Z, Greene R, Falkowski P, Chisholm SW, Hoge F, Swift R, Yungel J, Turner S, Nightingale P, Hatton A, Liss P, Tindale NW. Testing the iron hypothesis in ecosystems of the equatorial Pacific Ocean. Nature 1994. [DOI: 10.1038/371123a0] [Citation(s) in RCA: 990] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Van Ruiswyk J, Hartz A, Guse C, Sigmann P, Porth C, Buck K. Nursing assessments: patient severity of illness. Nurs Manag (Harrow) 1992; 23:44-6, 48. [PMID: 1518617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Abstract
A role for the PTH-calcium axis in the normal bone-marrow response to bleeding or erythropoietin administration has been demonstrated in rats. We studied 20 autologous blood donors, each donating two units of blood, who served as a human bleeding model. Fifteen patients completed the study. Blood donations were followed by a significant increase in serum intact PTH (2.15 +/- 0.67 to 2.81 +/- 0.84 pmol/l; p = 0.0003) and protein-corrected total calcium (2.43 +/- 0.09 to 2.49 +/- 0.08 mmol/l; p = 0.2). All the individual values remained within the normal range. PTH weakly correlated with the reticulocyte count, but not with the corrected serum calcium. We conclude that moderate bleeding in humans is followed by a physiological increase in serum PTH and calcium.
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Affiliation(s)
- J Foldes
- Division of Bone and Mineral, Henry Ford Hospital, Detroit, Michigan
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Buck K, Vanek M, Groner B, Ball RK. Multiple forms of prolactin receptor messenger ribonucleic acid are specifically expressed and regulated in murine tissues and the mammary cell line HC11. Endocrinology 1992; 130:1108-14. [PMID: 1537278 DOI: 10.1210/endo.130.3.1537278] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The expression of PRL receptor mRNA in mouse tissues was studied. Seven PRL receptor transcripts of different sizes were found. The pattern of expression was tissue specific. The PRL receptor protein exists in isoforms of approximately 300 and 600 amino acids, which differ in the sequence and length of the cytoplasmic domain. Probes specific for the lower mol wt forms of the receptor hybridized to transcripts of 1.4, 2.4, 3.5, and 4.2 kilobases (kb), which were predominantly expressed in the liver and kidney. Among the three isoforms of the small form of the receptor, PR-3 was highly expressed, PR-2 was weakly expressed, and PR-1 was undetectable. Probes specific for the higher mol wt receptor form detected transcripts of 9 and 10 kb, expressed most strongly in the ovary, mammary gland, and kidney. An additional 8.3-kb transcript was expressed in the kidney. The PRL-responsive mouse mammary epithelial cell line HC11 expressed only the 9- and 10-kb receptor mRNAs, as did the mammary gland. The transcripts for the two PRL receptor forms were independently regulated during pregnancy and lactation in a tissue-specific manner. The expression of the small receptor form in the liver increased 7-fold during pregnancy and decreased during lactation. Its expression in the kidney remained constant. Expression of the larger receptor form increased 2.5-fold in the kidney during lactation, but remained constant in the mammary gland. In the ovary the expression of the large receptor form could be elevated 4-fold after induction of hyperovulation with FSH and hCG. Thus, in the mouse there are at least two forms of the PRL receptor regulated independently in different tissues.
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Affiliation(s)
- K Buck
- Friedrich Miescher Institute, Basel, Switzerland
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Grandy DK, Zhang YA, Bouvier C, Zhou QY, Johnson RA, Allen L, Buck K, Bunzow JR, Salon J, Civelli O. Multiple human D5 dopamine receptor genes: a functional receptor and two pseudogenes. Proc Natl Acad Sci U S A 1991; 88:9175-9. [PMID: 1833775 PMCID: PMC52675 DOI: 10.1073/pnas.88.20.9175] [Citation(s) in RCA: 137] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Three genes closely related to the D1 dopamine receptor were identified in the human genome. One of the genes lacks introns and encodes a functional human dopamine receptor, D5, whose deduced amino acid sequence is 49% identical to that of the human D1 receptor. Compared with the human D1 dopamine receptor, the D5 receptor displayed a higher affinity for dopamine and was able to stimulate a biphasic rather than a monophasic intracellular accumulation of cAMP. Neither of the other two genes was able to direct the synthesis of a receptor. Nucleotide sequence analysis revealed that these two genes are 98% identical to each other and 95% identical to the D5 sequence. Relative to the D5 sequence, both contain insertions and deletions that result in several in-frame termination codons. Premature termination of translation is the most likely explanation for the failure of these genes to produce receptors in COS-7 and 293 cells even though their messages are transcribed. We conclude that the two are pseudogenes. Blot hybridization experiments performed on rat genomic DNA suggest that there is one D5 gene in this species and that the pseudogenes may be the result of a relatively recent evolutionary event.
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Affiliation(s)
- D K Grandy
- Vollum Institute for Advanced Biomedical Research, Oregon Health Sciences University
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Abraham W, Siegert S, Buck K, Csongar C, Helmstreit W, Grummt UW. Photochemistry of Acylazides V. Sensitization of decomposition of p-trimethylsilylbenzoylazide (TSBA). ACTA ACUST UNITED AC 1991. [DOI: 10.1002/prac.19913330115] [Citation(s) in RCA: 4] [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: 11/07/2022]
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Buck K. Issues in establishing rural ophthalmic surgery centers. Coll Rev 1988; 4:43-52. [PMID: 10301995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Citizens of rural communities suffer from a lack of specialized medical care. A large percentage of these citizens are elderly people who require more eye care than the rest of the population. These factors point to a need for outreach rural ophthalmic surgery centers. The author has been involved in the establishment of satellite ophthalmic outpatient surgical centers in the outlying communities of Arizona and shares insight into the procedure through a discussion of the various issues encountered in this experience.
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Abstract
Three types of microtubules are seen in the neuronal processes of the nematode Caenorhabditis elegans. Single cytoplasmic microtubules of most neurones have 11 protofilaments whereas those of six touch receptor cells have 15 protofilaments. The axonemes of sensory cilia have nine outer doublets with a variable number (up to seven) of singlet microtubules. Mutations in 11 genes affect the appearance of these microtubules.
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Affiliation(s)
- M Chalfie
- Department of Biological Sciences, Columbia University, New York, NY 10027
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Abstract
To show the effect of the temporal pattern of acoustic stimulation on TTS 15 min, guinea pigs were subjected to isoenergetic noises with the same spectrum. The exposures in a first experimental series were continuous noises and noise bursts. The continuous noise was presented with different durations and levels but always with the same energy. The noise burst stimulation consisted of a constant number of bursts with different interstimulus intervals. Both duration and repetition rate were shown to affect the TTS 15 min measured for these isoenergetic stimuli. A duration of 225 to 1800 s and a repetition rate of one per second produced the greatest TTS 15 min. In a second experimental series continuous noise and acoustic impulses with the same spectrum and 100-Hz repetition rate were presented at different levels. In this case the waveform of the stimulus (phase spectrum) was shown to have an effect on TTS 15 min.
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Parmentier G, Buck K. Determination of the characteristics of earmuffs subjected to the action of impulse noise. Scand Audiol Suppl 1980:213-22. [PMID: 6939091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Parmentier G, Buck K. Methods for measuring impulse noise. Scand Audiol Suppl 1980:77-84. [PMID: 6939112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Buck K, Lombardo D, Devigne C. Effects of continuous and impulse noise. Scand Audiol Suppl 1980:116-20. [PMID: 6939079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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