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Glonnegger H, Glenzer MM, Lancaster L, Barnes RF, von Drygalski A. Prepartum Anemia and Risk of Postpartum Hemorrhage: A Meta-Analysis and Brief Review. Clin Appl Thromb Hemost 2023; 29:10760296231214536. [PMID: 37968861 PMCID: PMC10655792 DOI: 10.1177/10760296231214536] [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] [Indexed: 11/17/2023] Open
Abstract
Postpartum hemorrhage (PPH) is responsible for 30% to 50% of maternal deaths. There is conflicting evidence if prepartum anemia facilitates PPH. A comprehensive analysis of studies describing their relation is missing. An extensive database search was conducted applying the terms "anemia" OR "hemoglobin" AND "postpartum hemorrhage." We used a random-effects meta-analysis model to estimate an overall odds ratio (OR) for PPH and prepartum anemia, separating studies that were conformant and non-conformant with the World Health Organization (WHO) definitions for anemia. The search yielded 2519 studies, and 46 were appropriate for analysis. The meta-analyses of WHO-conformant (n = 22) and non-conformant (n = 24) studies showed that the risk of PPH was increased when anemia was present. The ORs were 1.45 (CL: 1.23-1.71) for WHO-conformant studies, 2.88 (CL: 1.38-6.02) for studies applying lower thresholds for anemia, and 3.28 (CL: 2.08-5.19) for undefined anemia thresholds. PPH risk appeared to increase with lower anemia thresholds. Prepartum anemia is associated with an increased risk of PPH, an observation that is important regarding improved anemia correction strategies such as iron supplementation.
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Affiliation(s)
- Hannah Glonnegger
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology and Oncology, Medical Center-University of Freiburg, Freiburg, Germany
| | - Michael M. Glenzer
- Department of Medicine, Division of Hematology/Oncology, University of California San Diego, San Diego, CA, USA
| | - Lian Lancaster
- Department of Emergency Medicine, The George Washington University Washington DC, Washington DC, USA
| | - Richard F.W. Barnes
- Department of Medicine, Division of Hematology/Oncology, University of California San Diego, San Diego, CA, USA
| | - Annette von Drygalski
- Department of Medicine, Division of Hematology/Oncology, University of California San Diego, San Diego, CA, USA
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Hema EM, Di Vittorio M, Barnes RF, Guenda W, Luiselli L. Detection of interannual population trends in seven herbivores from a West African savannah: a comparison between dung counts and direct counts of individuals. Afr J Ecol 2017. [DOI: 10.1111/aje.12397] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Emmanuel M. Hema
- Laboratoire de Biologie et Ecologie Animales; Université Ouaga 1 Professeur Joseph KI ZERBO/CUPD; 09 B.P. 848 Ouagadougou 09 - Burkina Faso Ouagadougou Burkina Faso
| | | | - Richard F.W. Barnes
- Department of Medicine; University of California at San Diego; La Jolla CA 92093-8651 U.S.A
| | - Wendengoudi Guenda
- Laboratoire de Biologie et Ecologie Animales; Université Ouaga 1 Professeur Joseph KI ZERBO/CUPD; 09 B.P. 848 Ouagadougou 09 - Burkina Faso Ouagadougou Burkina Faso
| | - Luca Luiselli
- IDECC - Institute for Development, Ecology, Conservation and Cooperation; via G. Tomasi di Lampedusa 33 I-00144 Rome Italy
- Department of Applied and Environmental Biology; Rivers State University of Science and Technology; P.M.B. 5080 Port Harcourt Rivers State Nigeria
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Barnes RF, Craig GC, Dublin HT, Thoules CR. The African Elephant Database. ORYX 2001. [DOI: 10.1046/j.1365-3008.2001.0174a.x] [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: 11/20/2022] Open
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Veith RC, Lewis N, Linares OA, Barnes RF, Raskind MA, Villacres EC, Murburg MM, Ashleigh EA, Castillo S, Peskind ER. Sympathetic nervous system activity in major depression. Basal and desipramine-induced alterations in plasma norepinephrine kinetics. Arch Gen Psychiatry 1994; 51:411-22. [PMID: 8179465 DOI: 10.1001/archpsyc.1994.03950050071008] [Citation(s) in RCA: 274] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND To determine whether elevations of plasma norepinephrine (NE) in major depression represent increased sympathetic nervous system (SNS) activity and to assess the effects of desipramine hydrochloride on sympathetic function. METHODS SNS activity was assessed in depressed patients and controls by an isotope-dilution, plasma NE kinetic technique using mathematical modeling and compartmental analysis. This approach provided estimates of the rate of NE appearance into an extravascular compartment, which is the site of endogenous NE release from SNS nerves, the corresponding rate of NE appearance into plasma, and the rate of NE clearance from plasma. RESULTS Norepinephrine appearance into the extravascular and vascular compartments was significantly elevated in 17 depressed patients compared with that in 36 controls. The rate of NE clearance from plasma was similar in both groups. This is compatible with increased SNS activity in major depression. Desipramine, given for 2 days, significantly reduced the concentration of NE in plasma of patients and controls by markedly suppressing the rates of extravascular and vascular NE appearance, compatible with a short-term reduction in SNS activity. Desipramine prolonged the rate of NE clearance from plasma, consistent with a blockade of NE re-uptake into SNS nerve terminals. The initial suppression of SNS activity by desipramine was reversed by long-term (28 days) treatment of patients, with extravascular and vascular NE appearance rates returning to approximately basal levels. An associated rise in plasma NE concentrations compared with the baseline was attributable to a progressive reduction in plasma NE clearance. CONCLUSION Sympathetic nervous system activity is elevated in major depression and is suppressed by short-term desipramine administration. The demonstration of SNS reactivation occurring with prolonged desipramine treatment is compatible with the theory that long-term treatment desensitizes CNS alpha 2-adrenergic receptors and emphasizes the value of examining the temporal course of responses to pharmacological challenges of neuroendocrine systems. Previously reported elevations of plasma NE during prolonged administration of tricyclic antidepressants are probably the result of a reduction in plasma NE clearance, not an increase in SNS activity.
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Affiliation(s)
- R C Veith
- Geriatric Research, Education, and Clinical Center (GRECC), Seattle, (Wash) VAMC
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Eshleman JR, Barnes RF, Moon PC. A one-year study of short span resin bonded fixed bridges. Va Dent J 1989; 66:16-9. [PMID: 2700851] [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: 01/02/2023]
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Borson S, Barnes RF, Veith RC, Halter JB, Raskind MA. Impaired sympathetic nervous system response to cognitive effort in early Alzheimer's disease. J Gerontol 1989; 44:M8-12. [PMID: 2910990 DOI: 10.1093/geronj/44.1.m8] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Sympathetic nervous system responses to a cognitive challenge and a physiologic stimulus (upright posture) were compared in 10 patients with early Alzheimer's Disease and a group of healthy older adults. Plasma catecholamine and cardiovascular responses to upright posture were similar in the two groups. However, sympathetic activation during mental effort was impaired in the patient group; this difference did not appear to be attributable to motivational factors. Alzheimer's Disease is associated with a defect in sympathetic nervous system function that is specifically linked to cognitive effort and appears early in the course of the disease.
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Affiliation(s)
- S Borson
- Department of Psychiatry and Behavioral Sciences, University of Washington, School of Medicine, Seattle
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Affiliation(s)
- G L Button
- Medical College of Virginia, School of Dentistry, Richmond
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Barnes RF, Douglas HB. Alternative retention mechanism in cast post and cores: a case report. Va Dent J 1986; 63:30-1. [PMID: 3529683] [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: 01/06/2023]
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Barnes RF, Moon PC, Eshleman JR, Button GL. Comparison of shear bond strength and film thickness of bonding resins for resin-retained appliances. Gen Dent 1986; 34:228-30. [PMID: 3522354] [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: 01/06/2023]
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Abstract
Of nine depressed patients given the dexamethasone suppression test, the four dexamethasone-resistant patients had significantly higher plasma norepinephrine and epinephrine levels than the five patients with normal suppression. These results suggest greater sympathetic function in dexamethasone-resistant depressed patients.
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Abstract
A careful physical and laboratory evaluation of 144 chronic psychiatric outpatients revealed medical illnesses in 26%. Chart review indicated that 13% of the patients had illnesses that were previously undetected and that 13% of the patients received some form of new treatment because of the evaluation. The majority of the illnesses did not appear to have directly caused or exacerbated psychiatric symptoms. Because medical illnesses were relatively common in this population, psychiatrists caring for chronic psychiatric outpatients often need to assume some of the health care referral and coordinating functions typically associated with a primary care physician.
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Veith RC, Raskind MA, Barnes RF, Gumbrecht G, Ritchie JL, Halter JB. Tricyclic antidepressants and supine, standing, and exercise plasma norepinephrine levels. Clin Pharmacol Ther 1983; 33:763-9. [PMID: 6851407 DOI: 10.1038/clpt.1983.104] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Fourteen depressed patients were treated for 1 to 8 wk (4.1 +/- 0.6, mean +/- SEM) with imipramine, doxepin, or amitriptyline to study the effects of tricyclic antidepressants (TCAs) on sympathetic nervous system (SNS) function. Eight had chronic but medically stable cardiac disease and six were medically healthy. Supine plasma norepinephrine (NE) and epinephrine (EPI) levels, mean arterial blood pressure (MAP), and heart rate were measured at rest, after standing, and during graded, supine maximal bicycle exercise. Eight nondepressed patients with cardiac disease were studied without drug intervention as controls. There were no baseline differences in any of these measures among the medically healthy depressed subjects, the depressed cardiac patients, and the eight nondepressed patients matched for cardiac disease. After TCAs, NE was increased by 51 +/- 6% of basal values and heart rate rose, but EPI and MAP were unchanged. The supine to 10-min standing increment in NE increased from 309 +/- 51 pg/ml at baseline to 406 +/- 55 pg/ml during TCA treatment. These findings are compatible with an increase in SNS outflow after TCAs.
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Eshelman JR, Barnes RF, Moon PC. Notes on cast resin bonded bridges. Va Dent J 1983; 60:12-22. [PMID: 6344488] [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: 01/19/2023]
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Abstract
Depression, a common and treatable psychiatric disorder in later life, is often overlooked in geriatric medical patients. The authors evaluated the validity of two self-rating depression scales, the Zung Self-Rating Depression Scale and the Popoff Index of Depression, for 55 elderly patients. They compared these ratings with the diagnosis assigned by a psychiatrist who was blind to scale results and who interviewed these patients using DSM-III criteria. The two scales correctly classified 80% and 69% of the subjects, respectively. The authors identify six items from the two scales that may serve as a simple screening instrument for the detection of depression in geriatric medical patients.
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Veith RC, Raskind MA, Caldwell JH, Barnes RF, Gumbrecht G, Ritchie JL. Cardiovascular effects of tricyclic antidepressants in depressed patients with chronic heart disease. N Engl J Med 1982; 306:954-9. [PMID: 7038497 DOI: 10.1056/nejm198204223061603] [Citation(s) in RCA: 152] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Twenty-four depressed patients with heart disease were treated for four weeks in a double-blind trial of imipramine, doxepin, or placebo to assess the effects of tricyclic antidepressants on ventricular function and rhythm. The tricyclic antidepressants had no effect on left ventricular ejection fraction at rest or during maximal exercise, as measured by radionuclide ventriculograms obtained before and after treatment. Premature ventricular contractions were reduced by imipramine but were not consistently changed by doxepin or placebo. Treatment with imipramine and doxepin, but not placebo, was associated with significant improvement (P less than 0.001) in standard ratings of depression. Our findings underscore the need for a reappraisal of the cardiovascular risks of tricyclic antidepressants and suggest that in the absence of severe impairment of myocardial performance, depressed patients with preexisting heart disease can be effectively treated with these agents without an adverse effect on ventricular rhythm or hemodynamic function.
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Abstract
As part of an effort to improve the detection of depression in geriatric hospitalized medical patients, the validity of two self-rating depression scales, the Zung Self-rating Depression Scale (SDS) and the Popoff Index of Depression (ID), was evaluated. These two scales were completed by 42 medical inpatients whose mean age was 68 years. A psychiatrist who was "blind" to scale results interviewed each patient and diagnosed the presence or absence of depression according to the Diagnostic and Statistical Manual-III (DSM-III) criteria for Major Depressive Episode. On both the SDS and the ID, there was significant agreement between the scale results and the interview diagnosis. Compared with the interview diagnosis, the SDS had a sensitivity of 58 per cent and a specificity of 87 per cent, and it correctly identified 74 per cent of the patients as being either depressed or nondepressed. The ID had a sensitivity of 88 per cent and a specificity of 52 per cent, and it correctly identified 66 per cent of the patients. Although performance on both scales is reduced compared with that of younger depressed patients, these self-rating scales appear to be useful aids for the detection of depression in geriatric medical patients.
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Abstract
To determine if sympathetic nervous system activity is heightened during psychological stress in older adults, plasma norepinephrine (NE), epinephrine (EPI), heart rate, and blood pressure were measured in 10 healthy old (mean age, 68.5 yr) men and 10 healthy young (mean age, 26.6 yr) men during a 12-min mental stress test. Basal NE was higher in old than in young men (400 +/- 33 vs. 286 +/- 32 pg/ml: p less than 0.01). Consistent significant increases in plasma NE occurred only in the elderly and mean increases (delta) in NE during testing were significantly greater (P less than 0.01) in the old than in the young men. Compared to basal levels, plasma EPI increased by 2 min in both young (delta EPI, 50 +/- 20 pg/ml; P less than 0.02) and old subjects (delta EPI, 41 +/- 11; P less than 0.01) and remained significantly increased throughout the test. There was no difference in either basal or delta EPI between young and old men. Heart rate and blood pressure were significantly increased throughout testing for both age groups. Although the delta blood pressure during testing tended to be greater in the old men, this difference was not statistically significant. Conversely, the delta heart rate was greater in the young subjects (P less than 0.005). Since EPI increases were similar in old and young men, mental stress-related adrenomedullary activation does not appear to change with age. However, the increased plasma NE response in the elderly suggests that they have heightened activity of postganglionic sympathetic neurons during psychological stress.
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Abstract
An eight-week support group program was conducted for 15 members of the families of Alzheimer patients still living at home. It became clear that caring for an Alzheimer patient at home created tremendous practical, psychologic and social problems for family members. Frequently discussed problems included lack of support and information from physicians, poor understanding of the disease, depression, a trapped feeling, anger and fear about the patient's behavioral problems, isolation, and the caretaker's loss of self-identity. Group participation was especially beneficial for spouses who functioned as primary care providers. It increased their understanding of the disease, made them feel more supported and less isolated, and helped them resolve some of the feelings created by the illness. It also helped spouses to become more aware of their own needs and to regain some self-identity in relation to the patient. Such family support programs offer a way to strengthen the emotional well-being and treatment skills of the care-providing family and are an important aid to treatment in Alzheimer's disease.
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Abstract
Examinations were given to 64 elderly nursing home patients who met DSM III criteria for dementia to determine if a specific diagnosis for their dementing disorder could be established through clinical evaluation. Pre-established diagnostic criteria were followed in diagnosing the cause of a patient's dementia. The diagnostic criteria for primary degenerative dementia, multi-infarct dementia, or alcoholic dementia were the same as those in the DSM-III. All but four of the patients evaluated could be given a specific, criteria based diagnosis for the cause of their dementia. The two most common diagnoses were primary degenerative dementia (56%) and multi-infarct dementia (27%). Existing chart diagnoses for these 64 patients did not appear to be adequate as 39% had only a nonspecific diagnosis such as "organic brain syndrome," 30% had no diagnosis of any kind related to an organic mental disorder, and 8% had an inaccurate arteriosclerotic cerebro-vascular diagnosis. These results suggest that demented nursing home patients have discrete clinical syndromes which can be assigned a specific diagnosis and that the current clinical diagnosis of these disorders can be greatly improved.
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Shenk JS, Wangsness PJ, Leach RM, Gustine DL, Gobble JL, Barnes RF. Relationship between beta-nitropropionic acid content of crownvetch and toxicity in nonruminant animals. J Anim Sci 1976; 42:616-21. [PMID: 770408 DOI: 10.2527/jas1976.423616x] [Citation(s) in RCA: 21] [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: 12/24/2022] Open
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O'Donovan PB, Barnes RF, Plumlee MP, Mott GO, Packett LV. Ad libitum intake and digestibility of selected reed canarygrass (Phalaris arundinacea L.) clones as measured by the fecal index method. J Anim Sci 1967; 26:1144-52. [PMID: 6077173 DOI: 10.2527/jas1967.2651144x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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