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Tayebi P, Ziaie N, Golshan S, Bijani A, Mahmoudlou F. Hemodialysis Patients with High-Flow Arteriovenous Fistulas: An Evaluation of the Impact on Cardiac Function. Vasc Specialist Int 2024; 40:7. [PMID: 38454861 PMCID: PMC10921845 DOI: 10.5758/vsi.230090] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/06/2023] [Accepted: 12/14/2023] [Indexed: 03/09/2024] Open
Abstract
Purpose : Patients undergoing hemodialysis often experience changes in cardiac function when they have a high-flow arteriovenous fistula (AVF). This study aimed to assess the effect of high-flow AVFs on cardiac function in patients undergoing hemodialysis. Materials and Methods : A longitudinal study was conducted on hemodialysis patients with high-flow AVFs. Echocardiographic parameters, such as left ventricular ejection fraction (LVEF), left atrial diameter (LAD), left ventricular end-diastolic dimension (LVEDD), right ventricular end-diastolic dimension (RVEDD), inferior vena cava diameter (IVCD), systolic blood pressure, and diastolic blood pressure, were measured and compared before and after AVF creation. Results : One hundred hemodialysis patients with high-flow AVFs (mean age: 55.95±13.39 years, mean body mass index: 24.71±3.43 kg/m²) were studied. LVEF significantly decreased (51.10%±5.39% to 47.50%±5.79%), while LAD, LVEDD, and IVCD significantly increased after AVF creation (P<0.05). Systolic (132.49±16.42 mmHg to 146.60±17.43 mmHg) and diastolic (79.98±8.40 mmHg to 83.33±9.68 mmHg) blood pressure substantially rose post-fistularization (P<0.001). Notably, LVEF reduction was more significant in brachio-cephalic AVFs (46.29%±4.24%) compared to distal radio-cephalic or snuffbox AVFs (49.17%±7.15%) (P=0.014). Conclusion : High-flow AVFs can significantly affect echocardiographic parameters in hemodialysis patients, thereby increasing the risk of cardiac failure. Close cardiac monitoring may be necessary for early intervention. Distal AVFs may be preferable in patients with decreased cardiac function.
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Affiliation(s)
- Pouya Tayebi
- Department of Vascular and Endovascular Surgery, Rouhani Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Naghmeh Ziaie
- Department of Cardiology, Rouhani Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Sasan Golshan
- Department of General Surgery, Rouhani Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Ali Bijani
- Social Determinant of Health Research Center, Babol University of Medical Sciences, Babol, Iran
| | - Fatemeh Mahmoudlou
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
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Hutson L, Callahan M, Zaccari B, Demadura T, Clark J, Golshan S, Storzbach D. C-32The Impact of PTSD on Compensatory Cognitive Training (CCT) for OEF/OIF/OND Veterans with mTBI. Arch Clin Neuropsychol 2016. [DOI: 10.1093/arclin/acw043.181] [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: 11/13/2022] Open
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Bounthavong M, Tran JN, Golshan S, Piland NF, Morello CM, Blickensderfer A, Best JH. Retrospective cohort study evaluating exenatide twice daily and long-acting insulin analogs in a Veterans Health Administration population with type 2 diabetes. Diabetes Metab 2014; 40:284-91. [PMID: 25059703 DOI: 10.1016/j.diabet.2014.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 06/04/2014] [Accepted: 06/05/2014] [Indexed: 11/25/2022]
Abstract
AIM This was a retrospective cohort study that evaluated the differences in glycated haemoglobin (HbA1c) and body mass index (BMI) in veterans with type 2 diabetes mellitus (T2DM), prescribed exenatide twice daily (BID) versus long-acting insulin analog (LAIA) two years after initiation in the United States (US) veteran population. MATERIALS AND METHODS Patients were included if they were ≥ 18 years old with T2DM, and initiated exenatide BID or LAIA at the Veterans Health Administration between January 1, 2006 and December 31, 2010. Multivariate models were used to evaluate the changes in HbA1c and BMI between groups, controlling for potential confounders. Logistic regression was used to evaluate the odds of achieving ≥ 0.5% HbA1c reduction based on baseline HbA1c stratifications: low,<7%; moderate, 7% to<9%; and high,≥ 9%. RESULTS A total of 446 exenatide BID and 51,531 LAIA patients met inclusion/exclusion criteria. On average, exenatide BID patients were significantly older (64 versus 60 years) with a higher BMI (37.8 versus 32.9 kg/m(2)). Baseline HbA1c was 8.2% and 8.8% for exenatide BID and LAIA patients, respectively (P<0.001); otherwise, patients were similar for all other characteristics. Exenatide BID treatment was significantly associated with a 0.32% (95%CI: 0.18-0.47%) greater reduction in HbA1c at two years compared with LAIA. Similar findings were observed for BMI reduction (0.68 kg/m(2); 95%CI: 0.42-0.95 kg/m(2)). Exenatide BID patients with moderate baseline HbA1c had significantly higher odds of achieving ≥ 0.5% HbA1c reduction compared with LAIA patients (OR=1.5; 95%CI: 1.2-2.0). CONCLUSIONS Veterans treated with exenatide BID had significantly greater reduction in HbA1c and BMI compared with patients treated with LAIA patients two years after initiation.
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Affiliation(s)
- M Bounthavong
- Veterans Affairs San Diego Healthcare System, San Diego, USA.
| | - J N Tran
- Clinical Analytics and Outcomes Research, OptumRX, Irvine, CA, USA.
| | - S Golshan
- Advanced Center for Innovation in Services and Intervention Research (ACISIR), University of California, Department of Psychiatry, San Diego, CA, USA.
| | - N F Piland
- Idaho State University, Institute of Rural Health, Pocatello, Idaho, USA.
| | - C M Morello
- UCSD Skaggs School of Pharmacy and Pharmaceutical Sciences, San Diego, California, USA.
| | - A Blickensderfer
- Medical Relations & Information, Amylin Pharmaceuticals, LLC., a fully-owned subsidiary of Bristol-Myers Squibb, San Diego, California, USA.
| | - J H Best
- Health Outcomes, Amylin Pharmaceuticals, LLC., a fully-owned subsidiary of Bristol-Myers Squibb, San Diego, California, USA; University of Washington, Seattle, Washington, USA.
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Kasckow J, Montross L, Golshan S, Mohamed S, Patterson T, Sollanzano E, Zisook S. Suicidality in middle aged and older patients with schizophrenia and depressive symptoms: relationship to functioning and Quality of Life. Int J Geriatr Psychiatry 2007; 22:1223-8. [PMID: 17506025 PMCID: PMC3118557 DOI: 10.1002/gps.1817] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [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] [Indexed: 11/05/2022]
Abstract
BACKGROUND Suicidality is a health concern in patients with schizophrenia. We examined the hypotheses: (1) Middle aged and older patients with schizophrenia, depressive symptoms and suicidality would exhibit worse quality of life and worse everyday functioning, social skills and medication management relative to those without suicidality; (2) higher levels of suicidality would be significantly associated with worse functioning, worse quality of life and older age. METHODS We examined 146 outpatients with schizophrenia and depression. Patients were at least 40 years old and were diagnosed with schizophrenia or schizoaffective disorder and had two or more depressive symptoms based on DSM-IV criteria for major depression. We assessed suicidality with the Intersept Suicide Scale (ISS) and functioning with the UCSD Performance-based Skills Assessment (UPSA), Social Skills Performance Assessment (SSPA), and Medication Management Ability Assessment (MMAA). Quality of life was assessed with the Heinrichs Quality of Life Scale (QLS). RESULTS The mean age of patients was 52.4+ 6.9 years. Subjects with suicidality (ISS scores > 0) had lower QLS scores compared to those without suicidality. However, there were no differences in UPSA, SSPA nor MMAA scores between the two groups. In addition, based on Spearman's rho correlational analysis, there were significant associations of QLS scores with ISS scores (r = - 0.236) and with MMAA "total errors" scores (r = 0.174). Logistic regression demonstrated that only QLS scores predicted suicidality. CONCLUSION Thirty-six percent of our sample had at least mild degrees of suicidality. Lower quality of life appears to be an important predictor of suicidality.
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Affiliation(s)
- J Kasckow
- VA Pittsburgh Health Care System, Pittsburgh, PA 15206, USA.
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Mohamed S, Bondi MW, Kasckow JW, Golshan S, Jeste DV. Neurocognitive functioning in dually diagnosed middle aged and elderly patients with alcoholism and schizophrenia. Int J Geriatr Psychiatry 2006; 21:711-8. [PMID: 16862606 DOI: 10.1002/gps.1528] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Alcohol abuse and dependence have important clinical implications for managing patients with schizophrenia. Alcoholism in schizophrenia patients can interfere with the course and prognosis of the schizophrenic illness. OBJECTIVE The purpose of the present study was to compare the cognitive status, symptom profile and quality of life of middle aged and older patients (>44 years old) with schizophrenia and alcohol abuse/dependence vs those without alcohol abuse/dependence. We initially hypothesized that more males in this age group with schizophrenia would exhibit alcoholism. We also examined the characteristics of the 45-54 year age group with those of the > or = 55 year old group and hypothesized that comorbidity with alcohol would be associated with worse cognition and quality of life in later life. METHODS Data were obtained from a database from the Center for Services and Interventions research at the University of California, San Diego. Patients had diagnoses of schizophrenia or schizoaffective disorder. Data collected included demographic characteristics, cognitive status (tested with the Mattis Dementia Rating Scale learning, the Figural and Story Memory Test of the Wechsler Memory Scale-Revised and the California Verbal Learning Test [CVLT]). In addition, patients had undergone psychopathologic assessment and were screened for quality of life using the Quality of Well Being scale. RESULTS We demonstrated that the older aged patients with alcoholism had worse scores assessing cognition relative to the same aged group without alcoholism. In addition, they had worse cognitive scores relative to the younger group (45-54 year old) with alcoholism. There was no significant difference with regards to quality of life. In addition, more males than females exhibited alcoholism. CONCLUSION The results are consistent with the premise that the higher cognitive function in the younger schizophrenia patients with alcoholism appear to mask the effects of alcohol use on cognition at that age. However, for the older group of schizophrenia patients, the effects of alcohol use on neuropsychological functioning appear to be deleterious.
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Affiliation(s)
- S Mohamed
- Cincinnati Veterans Affairs Medical Center, Cincinnati, OH, USA
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Kennedy JS, Jeste D, Kaiser CJ, Golshan S, Maguire GA, Tollefson G, Sanger T, Bymaster FP, Kinon BJ, Dossenbach M, Gilmore JA, Breier A. Olanzapine vs haloperidol in geriatric schizophrenia: analysis of data from a double-blind controlled trial. Int J Geriatr Psychiatry 2003; 18:1013-20. [PMID: 14618553 DOI: 10.1002/gps.1007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [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: 11/12/2022]
Abstract
OBJECTIVES To compare the six-week clinical response and safety profile of schizophrenia patients, age > or =60 years, receiving olanzapine (OLZ) vs haloperidol (HAL) in a double blind, randomized trial. METHODS Double-blind data on patients age > or =60 randomized to 5 mg/d OLZ (n=83) or 5 mg/d HAL (n=34) (Week 1) then flexibly dosed to 5-20 mg/d over six weeks, with a 48-week extension for responders, were analyzed post-hoc. Efficacy indices included the PANSS Total and PANSS Psychosis Core Total (PPCT). Safety measures included the Simpson-Angus Scale (SAS), Barnes Akathisia Scale (BAS), Abnormal Involuntary Movement Scale (AIMS), treatment-emergent adverse events, and laboratory values. Mixed model, repeated measures (MMRM) analyses were applied to all continuous data measured at each visit. Continuous data recorded only at phase completion or termination were analyzed with a fixed effect last observation carried forward (LOCF) model. Frequencies of categorical response data were analyzed using Fisher's exact methods. Differences were tested for significance at Week 6 using a two-sided alpha value of 0.05. RESULTS HAL group (n=34; age range 60-80) received a mean modal dose 9.4 mg/d while OLZ group (n=83; age range 60-86) received a mean modal dose 11.9 mg/d. At Week 6, OLZ was superior to HAL on both the PANSS Total (p=0.015) and PPCT (p=0.043). Considering safety, OLZ was superior to HAL for the SAS and BAS (p<0.001; p<0.001). No spontaneous adverse event occurred more frequently with OLZ than with HAL. In patients never receiving adjunct anticholinergic therapy, no significant differences were present for anticholinergic-like side effects including blurred vision, dry mouth, constipation, or urinary difficulties. CONCLUSIONS In elderly schizophrenia patients, olanzapine was more efficacious and better tolerated for extrapyramidal signs than was haloperidol. Olanzapine was equivalent to haloperidol for anticholinergic-like side effects when corrected for anticholingergic agents.
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Affiliation(s)
- J S Kennedy
- Indiana University School of Medicine, Department of Psychiatry, Indianapolis, Indiana, USA.
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Abstract
OBJECTIVE Controversy exists about long-term outcome of schizophrenia, but few studies have compared older out-patients to normal subjects. We sought to examine the relationship of age to clinical features, psychopathology, movement abnormalities, quality of well-being, and everyday functioning in schizophrenia out-patients and normal comparison subjects, and to further characterize these outcomes in elderly schizophrenia out-patients. METHOD A total of 290 out-patients and 144 comparison subjects, aged 40-85 years, underwent comprehensive assessments. RESULTS Among patients, aging was associated with decreased psychopathology, even after controlling for duration of illness. There was no accelerated aging-related decline on any measure in the patients. Yet, elderly patients were more impaired than comparison subjects on various measures. CONCLUSION The course of schizophrenia in late life appears stable, but most elderly patients remain symptomatic and impaired. Our findings dispute notions of either progressive deterioration or marked improvement in aging schizophrenia out-patients.
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Affiliation(s)
- D V Jeste
- Department of Psychiatry, University of California, San Diego, CA, USA.
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Patten CA, Gillin JC, Golshan S, Wolter TD, Rapaport M, Kelsoe J. Relationship of mood disturbance to cigarette smoking status among 252 patients with a current mood disorder. J Clin Psychiatry 2001; 62:319-24. [PMID: 11411811 DOI: 10.4088/jcp.v62n0502] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND The relationship between cigarette smoking and mood has received increasing attention. This retrospective study evaluated the relationship between mood disturbance and cigarette smoking status among patients with a current mood disorder. The association between level of nicotine dependence and severity of mood disturbance was also evaluated among current smokers. METHOD Retrospective data for 252 patients (63.5% male, 85.0% white) admitted for treatment of a mood disorder at the San Diego Veteran Affairs Mental Health Clinical Research Center between November 1988 and June 1997 were studied. All current cigarette smokers at admission (N = 126) were matched with nonsmokers (N = 126) on the primary DSM-IV Axis I mood disorder diagnosis, admission status (inpatient or outpatient), gender, age (+/- 5 years), and ethnicity. The Hamilton Rating Scale for Depression (HAM-D), the Beck Depression Inventory, and the Profile of Mood States (POMS) were administered to patients on admission. Conditional logistic regression analysis for matched sets with a backward elimination was used to identify factors independently predictive of current smoking status. RESULTS A greater number of cups of coffee consumed per day (p = .002), a history of alcoholism (p = .004), and higher POMS fatigue subscale scores (p = .007) were predictive of current smoking status. Among current smokers, the HAM-D terminal insomnia item was positively associated with mean number of cigarettes smoked per day (p = .012). CONCLUSION Cigarette smoking should be addressed in the treatment of patients with a current mood disorder. Smokers experience greater levels of fatigue than nonsmokers. In addition, higher cigarette consumption levels are associated with mild-to-severe symptoms of terminal insomnia.
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Affiliation(s)
- C A Patten
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, Minn 55905, USA.
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Pyne JM, Bullock D, Kaplan RM, Smith TL, Gillin JC, Golshan S, Kelsoe JR, Williams DK. Health-related quality-of-life measure enhances acute treatment response prediction in depressed inpatients. J Clin Psychiatry 2001; 62:261-8. [PMID: 11379840 DOI: 10.4088/jcp.v62n0408] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Many nonbiological variables are reported to predict treatment response for major depression; however, there is little agreement about which variables are most predictive. METHOD Inpatient subjects (N = 59) diagnosed with current DSM-IV major depressive disorder completed weekly depressive symptom ratings with the Hamilton Rating Scale for Depression (HAM-D-17) and Beck Depression Inventory (BDI), and weekly health-related quality-of-life (HRQL) ratings with the Quality of Well-Being Scale (QWB). Acute responders were identified by a 50% decrease in HAM-D-17 score from baseline within 4 weeks of medication treatment. Predictor variables were initially chosen from a literature review and then tested for their association with acute treatment response. RESULTS An initial predictive model including age at first depression, admission BDI score, and melancholia predicted acute treatment response with 69% accuracy and was designated as the benchmark model. Adding the admission QWB index score to the benchmark model did not improve the prediction rate; however, adding the admission QWB subscales for physical and social activity to the benchmark model significantly improved acute treatment response prediction to 86% accuracy (p = .001). CONCLUSION In addition to being designed for use in cost-effectiveness analyses, the QWB subscales appear to be useful HRQL variables for predicting acute inpatient depression treatment response.
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Affiliation(s)
- J M Pyne
- Department of Psychiatry, Central Arkansas Veterans Healthcare System, Little Rock, USA.
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Thorsteinsson HS, Gillin JC, Patten CA, Golshan S, Sutton LD, Drummond S, Clark CP, Kelsoe J, Rapaport M. The effects of transdermal nicotine therapy for smoking cessation on depressive symptoms in patients with major depression. Neuropsychopharmacology 2001; 24:350-8. [PMID: 11182530 DOI: 10.1016/s0893-133x(00)00217-7] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This study examines the effects of transdermal nicotine patches for smoking cessation on depressive and withdrawal symptoms among 38 non-medicated subjects with Major Depressive Disorder. The study was conducted over a 29-day period, which included a 7 day baseline phase, a 14 day treatment phase, and an 8 day placebo phase. During the treatment phase subjects received either active nicotine patches (N = 18) or placebo patches (N = 20) that were administered in a randomized, double-blind fashion. The target quit date (TQD) was day 8. Significantly, more subjects in the placebo group than in the nicotine group resumed smoking following the TQD (50% vs. 22%). There was little evidence for effects of active nicotine patches on measures of mood (HRSD, BDI, POMS) or withdrawal symptoms among subjects that remained abstinent throughout the study (N = 24). Those who resumed smoking had more severe withdrawal symptoms than those who remained abstinent. One patient in the placebo group (n = 20) became more depressed after 2 weeks of abstinence. None of the patients in the nicotine group (n = 18) became more depressed.
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Affiliation(s)
- H S Thorsteinsson
- San Diego State University and University of California San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA, USA
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Clark C, Dupont R, Golshan S, Gillin JC, Rapaport MH, Kelsoe JR. Preliminary evidence of an association between increased REM density and poor antidepressant response to partial sleep deprivation. J Affect Disord 2000; 59:77-83. [PMID: 10814775 DOI: 10.1016/s0165-0327(99)00135-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND One night of total sleep deprivation or of late-night partial sleep deprivation (PSD) produces a temporary remission in approximately 40-60% of patients with major depressive disorder; however, little is known about polysomnography (PSG) characteristics of responders to these types of sleep deprivation (SD). METHODS Twenty-three unmedicated unipolar patients (17-item Hamilton Depression Rating Scale (HDRS17) >16) and 14 normal controls underwent 1 night of late-night PSD (awake after 3 a.m.) Subjects underwent baseline PSG and received the HDRS17 at standard times before and after PSD. Clinical response was defined as a reduction of >30% in the modified HDRS17 (omitting sleep and weight loss items) following PSD. RESULTS The 12 responders and 11 nonresponders did not differ from each other significantly on baseline HDRS17 or PSG variables. The only PSG variable correlating with percent decrease in modified HDRS17 was baseline REM density (Pearson's r=-0.52, n=23, P=0.01.) In other words, the lower the baseline REM density, the more robust the antidepressant response was. LIMITATIONS Subject numbers are relatively small. CONCLUSIONS Increased REM density, which reflects the number of rapid eye movements per epoch of REM sleep, may be a physiological marker for severity or poor prognosis in a variety of psychiatric disorders, including relapse in recovering alcoholics, suicidality in schizophrenia, and poor response to PSD or interpersonal psychotherapy in depression.
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Affiliation(s)
- C Clark
- Department of Psychiatry 9116A University of California at San Diego 92093, USA.
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Abstract
OBJECTIVE To determine the prevalence of and identify risk factors for abnormal involuntary movements in a well-characterized community sample of neuroleptic-naive children and adolescents. METHOD The Abnormal Involuntary Movement Scale (AIMS) was administered to 390 subjects aged 3-17 years who were in foster care. Additional instruments were used to assess intellect and behaviour problems. RESULTS A total 12.6% of subjects had at least 1 rating of "mild" movements on AIMS; these included 4.1% with at least 2 ratings of "mild" or 2 of "moderate" severity. Significant risk factors for movement disorder were younger age, lower IQ, and more severe behaviour problems. The abnormal movements were usually orofacial, and the affected subjects were generally unaware of these movements. CONCLUSION The base prevalence of abnormal involuntary movements must be considered in children and adolescents assessed for medication in order to determine the true rate of motor side effects.
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Affiliation(s)
- M Magulac
- Department of Psychiatry, University of California, San Diego, USA
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Parry BL, Mostofi N, LeVeau B, Nahum HC, Golshan S, Laughlin GA, Gillin JC. Sleep EEG studies during early and late partial sleep deprivation in premenstrual dysphoric disorder and normal control subjects. Psychiatry Res 1999; 85:127-43. [PMID: 10220004 DOI: 10.1016/s0165-1781(98)00128-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In this study of 23 patients with premenstrual dysphoric disorder (PMDD) and 18 normal comparison (NC) subjects, we examined sleep EEG measures during baseline midfollicular (MF) and late luteal (LL) menstrual cycle phases and after early sleep deprivation (ESD), in which subjects slept from 03.00 to 07.00 h, and late sleep deprivation (LSD), in which subjects slept from 21.00 to 01.00 h. Each sleep deprivation night was followed by a night of recovery sleep (ESD-R, LSD-R) (sleep 22.30-06.30 h) and was administered in the late luteal phase of separate menstrual cycles. During baseline studies, sleep EEG measures differed significantly by menstrual cycle phase, but not group. Both PMDD and NC groups showed longer REM latencies and less REM sleep (minutes and percent) during the luteal compared with the follicular menstrual cycle phase. PMDD subjects, however, did not show sleep architecture changes similar to those of patients with major depressive disorders. Sleep quality was better during recovery nights of sleep in PMDD compared with NC subjects. REM sleep measures changed in association with clinical improvement in responders to sleep deprivation. Both early and late sleep deprivation may help to correct underlying circadian rhythm disturbances during sleep in PMDD, although differential sleep changes during ESD vs. LSD did not correlate with clinical response. Further sleep studies addressing additional circadian variables may serve to elucidate mechanisms mediating the therapeutic effects of sleep deprivation in PMDD.
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Affiliation(s)
- B L Parry
- Department of Psychiatry, University of California, San Diego, La Jolla 92093-0804, USA.
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Clark CP, Gillin JC, Golshan S, Demodena A, Smith TL, Danowski S, Irwin M, Schuckit M. Polysomnography and depressive symptoms in primary alcoholics with and without a lifetime diagnosis of secondary depression and in patients with primary major depression. J Affect Disord 1999; 52:177-85. [PMID: 10357031 DOI: 10.1016/s0165-0327(98)00078-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND There is evidence suggesting that there is: (1) additive polysomnographic effects of alcoholism and depression; and (2) elevated baseline REM density in primary alcoholics with (PASD) and without lifetime history of secondary depression (NPA). METHODS 23 PASDs, 59 NPAs, and 23 primary major depression patients (PMD) underwent polysomnography. Any drinking within 3 months after a 1-month inpatient alcohol rehabilitation defined relapse. RESULTS PASDs' polysomnography was more like NPAs than PMDs. Polysomnography reflected 3-month sobriety status more than diagnosis. LIMITATIONS Not all PASD's met full major depression criteria upon admission. CONCLUSIONS Alcoholism affected polysomnography more than depression. Elevated admission REM density predicted 3-month relapse in PASDs and NPAs.
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Affiliation(s)
- C P Clark
- Department of Psychiatry, University of California at San Diego, La Jolla, CA 92093, USA.
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15
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Clark C, Dupont R, Lehr P, Yeung D, Halpern S, Golshan S, Gillin JC. Is there a relationship between delta sleep at night and afternoon cerebral blood flow, assessed by HMPAO-SPECT in depressed patients and normal control subjects? Preliminary data. Psychiatry Res 1998; 84:89-99. [PMID: 10710166 DOI: 10.1016/s0925-4927(98)00049-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We wished to explore the relationships between waking HMPAO uptake and visually scored polysomnography. We hypothesized that HMPAO activity would correlate positively with slow wave sleep measures the same night. Eight unmedicated unipolar patients with current DSM-IV major depression (17-item Hamilton Depression Rating Scale score 21.5+/-2.9) and seven control subjects received polysomnography on 2 consecutive nights. On the afternoon following the adaptation night, subjects received cerebral SPECT, with 15 mCi Tc-99m-HMPAO injected while subjects performed the Continuous Performance Task. Patients and control subjects did not significantly differ on demographic, polysomnographic, and SPECT variables. Slow wave sleep measures correlated positively (Spearman's) with global and regional tracer activity for depressed (n = 8), control (n = 7) and combined groups (n = 15); in other words, the greater the global or regional afternoon HMPAO uptake, the greater the slow wave sleep measures were the same night. In addition, the greater the waking afternoon global or regional HMPAO activity, the faster subjects fell asleep and the less Stage 2% they had. In patients, global and regional HMPAO activity correlated positively with REM density. Positive correlations between waking tracer activity and subsequent slow wave measures are consistent with previous hypotheses linking slow wave sleep with brain energy conservation and restoration. Further study is needed to determine whether these functional relationships differ in depression.
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Affiliation(s)
- C Clark
- Department of Psychiatry, University of California, San Diego and San Diego Veterans Affairs Medical Center, La Jolla 92093, USA.
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16
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Mendlowicz MV, Rapaport MH, Thompson P, Kelsoe JR, Golshan S, Judd LL, Gillin JC. A comparison of descriptive characteristics of male outpatients and inpatients with affective disorders. Int Clin Psychopharmacol 1998; 13:245-52. [PMID: 9861574 DOI: 10.1097/00004850-199811000-00002] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Recent studies of patients with affective disorders have found that there are biological differences between inpatients and outpatients. Concerned by these findings, we compared individuals admitted to our inpatient and outpatient affective disorders clinical research center who met criteria for major depression. We hypothesized that inpatients would be more severely ill, more suicidal, more functionally impaired, and have more co-morbid disorders and higher ratings of depression and mood state dysfunction. The demographic profiles, lifetime co-morbid Axis I diagnoses, consumption histories, symptom profiles, global assessment of functioning, and severity of current stressors (Axis IV) were compared and contrasted for the two groups. Inpatients had more severe current psychosocial stressors, lower current levels of functioning, increased lifetime co-morbid Axis I diagnoses, and increased rates of psychiatric hospitalizations, however, they did not have higher depression symptom ratings. In conclusion, inpatients and outpatients differed significantly in the severity of their stressors, coping abilities and history of previous hospitalizations, but not in most demographic variables or their current symptoms of depression.
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Affiliation(s)
- M V Mendlowicz
- Institute of Psychiatry, Federal University of Rio de Janeiro, Brazil
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17
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Clark CP, Gillin JC, Golshan S, Demodena A, Smith TL, Danowski S, Irwin M, Schuckit M. Increased REM sleep density at admission predicts relapse by three months in primary alcoholics with a lifetime diagnosis of secondary depression. Biol Psychiatry 1998; 43:601-7. [PMID: 9564445 DOI: 10.1016/s0006-3223(97)00457-5] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Having previously reported that 3-month relapse was associated with increased admission REM pressure in nondepressed primary alcoholics, we hypothesized that baseline polysomnography would predict outcome in primary alcoholics with a lifetime diagnosis of secondary depression. METHODS Twenty-one primary alcoholics with secondary depression received polysomnography and the Hamilton Depression Rating Scale during the first and fourth weeks of a 1-month inpatient alcohol treatment program. Exclusion criteria included serious illness, current major alcohol withdrawal symptoms, other Axis I diagnoses, sleep apnea, nocturnal myoclonus, and psychoactive substances within 14 days of polysomnography. Relapse was defined as drinking any alcohol between hospital discharge and 3-month follow-up. RESULTS Relapsers' total sleep time was reduced, and REM density (reflecting REM sleep ocular activity) was increased significantly throughout admission compared with abstainers. Sleep continuity and Hamilton scores improved by discharge in sober and relapsing alcoholics. Factors derived from admission REM latency, REM percent, and REM density predicted sobriety vs. relapse within 3 months after hospital discharge in 76% of patients. Admission REM density was greater, and total sleep time was less in relapsers than in patients sober at 3 months. CONCLUSIONS Results suggest that increased REM density and decreased total sleep time at about 2-4 weeks of abstinence predict relapse by 3 months in depressed alcoholics.
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Affiliation(s)
- C P Clark
- Department of Psychiatry, University of California at San Diego, USA
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18
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Mendlowicz MV, Rapaport MH, Mecler K, Golshan S, Moraes TM. A case-control study on the socio-demographic characteristics of 53 neonaticidal mothers. Int J Law Psychiatry 1998; 21:209-219. [PMID: 9612720 DOI: 10.1016/s0160-2527(98)00003-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- M V Mendlowicz
- Institute of Psychiatry of the Federal University of Rio de Janeiro, Brazil.
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19
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Bhatti T, Gillin JC, Seifritz E, Moore P, Clark C, Golshan S, Stahl S, Rapaport M, Kelsoe J. Effects of a tryptophan-free amino acid drink challenge on normal human sleep electroencephalogram and mood. Biol Psychiatry 1998; 43:52-9. [PMID: 9442344 DOI: 10.1016/s0006-3223(97)80252-1] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Serotonin has been implicated in the regulation of sleep and mood. In animals a tryptophan-free amino acid drink (TFD) challenge has been found to reduce brain serotonin. We hypothesized this TFD would produce alterations in electroencephalographic (EEG) sleep commonly associated with depression, i.e. an enhancement of rapid eye movement (REM) sleep, and adversely affect mood ratings in humans. METHODS We investigated the effects of a TFD challenge in 11 healthy male subjects on EEG sleep and mood (assessed by Profile of Mood States). All subjects received on separate occasions an experimental drink containing approximately 100 g of an amino acid mixture (100% TFD) and a control drink containing one fourth strength (25% TFD) of the experimental drink 5 hours prior to sleep (6:00 PM). RESULTS Both drinks significantly decreased plasma tryptophan levels 5 hours postchallenge (11:00 PM). Both drinks significantly decreased REM latency, and the 25% TFD also increased REM time and REM% compared to baseline. No significant changes were found in subjective ratings of depression; however, subjects reported confusion and tension and a decrease in elation, vigor, and friendliness compared with baseline. CONCLUSIONS These TFD findings further support the involvement of serotonin deficiency in EEG sleep findings commonly seen in depression.
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Affiliation(s)
- T Bhatti
- Department of Psychiatry, University of California at San Diego 92161, USA
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20
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Pyne JM, Patterson TL, Kaplan RM, Ho S, Gillin JC, Golshan S, Grant I. Preliminary longitudinal assessment of quality of life in patients with major depression. Psychopharmacol Bull 1997; 33:23-9. [PMID: 9133748] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This study examines the longitudinal relationships between a health-related quality of life measure and depressive symptoms in patients with major depression. One hundred eighteen patients with primary major depression and 81 controls were evaluated. The patients were divided into three groups based on Diagnostic Interview Schedule criteria for a major depressive episode at baseline (T1) and 6 months later (T2). Results indicate that the Quality of Well-Being (QWB) measure is sensitive to different levels of depressive symptoms over a 6-month period. The QWB is a health-related quality of life and cost/utility measure that may be useful for pharmacoeconomic analysis. The reduction in quality of life associated with symptoms of depression is comparable to that observed with chronically physically ill patients. As a generic symptom/function measure, the QWB may be very useful in evaluating public health policy.
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Affiliation(s)
- J M Pyne
- Department of Veterans Affairs Medical Center, Department of Psychiatry, San Diego, CA 92161-0603, USA
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21
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Gillin JC, Sohn JW, Stahl SM, Lardon M, Kelsoe J, Rapaport M, Ruiz C, Golshan S. Ipsapirone, a 5-HT1A agonist, suppresses REM sleep equally in unmedicated depressed patients and normal controls. Neuropsychopharmacology 1996; 15:109-15. [PMID: 8840346 DOI: 10.1016/0893-133x(95)00159-b] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [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: 02/02/2023]
Abstract
To determine whether ipsapirone, a 5-HT1A agonist, differentially suppresses REM sleep in depressed patients compared with normal controls, we administered placebo, ipsapirone 10 mg, or ipsapirone 20 mg in a double-blind, random order before bedtime in 18 unmedicated patients with depression and 16 age-matched, gender-matched normal controls. Compared to placebo, ipsapirone affected REM sleep measures equally in depressed patients and controls as follows: (1) increased REM latency; (2) reduced total REM percent, REM time, and REM density; and (3) delayed the onset of REM sleep. In addition, ipsapirone had similar effects in patients and controls in other sleep measures: (1) reduced total sleep time; (2) delayed sleep onset time; and (3) increased sleep latency, stage 1%, stage 2%, the amount of stage 3 & 4 sleep in the first non-REM period, and wake time after sleep onset. The study does not support the hypothesis that downregulated 5-HT1A receptors mediate the pathophysiology or sleep disturbances of depression, although further studies are needed as these patients did not differ from controls in baseline sleep measures.
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Affiliation(s)
- J C Gillin
- Department of Psychiatry, University of California, San Diego 92093-0603, USA
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22
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Abstract
We hypothesized that stimulant abusers would sleep more and have more rapid eye movement (REM) sleep than primary alcoholics during acute withdrawal (first 10 days drug free) but would have opposite patterns during subacute withdrawal (days 11-14 drug free). We compared polygraphic sleep patterns during acute withdrawal (days 3-10) for 7 stimulant abusers and 8 alcoholics and during subacute withdrawal (days 11-14) for 7 different stimulant abusers and 8 different alcoholics. For comparison purposes, a group of normal controls from our preexisting database were matched for age and gender. Two statistically significant interactions were found: consistent with our hypothesis, stimulant abusers showed greater total sleep (TST) and REM sleep during acute withdrawal than subacute withdrawal, compared with alcoholics. In contrast, alcoholics showed less TST and REM sleep during acute withdrawal than during subacute withdrawal. Our polygraphic sleep data support the hypothesis that physiological withdrawal differs in alcoholics compared with stimulant abusers. Different mechanisms may underlie withdrawal in these two substances.
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Affiliation(s)
- P M Thompson
- San Diego Veterans Affairs Medical Center, CA, USA
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23
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Gillin JC, Lauriello J, Kelsoe JR, Rapaport M, Golshan S, Kenny WM, Sutton L. No antidepressant effect of biperiden compared with placebo in depression: a double-blind 6-week clinical trial. Psychiatry Res 1995; 58:99-105. [PMID: 8570773 DOI: 10.1016/0165-1781(95)02700-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Depression may result from an increased ratio of cholinergic to aminergic central neurotransmission. The effect of centrally active anticholinergic agents on depressive ratings in depressed patients, however, has not been well studied. In a previous open label 4-week clinical trial, Kasper et al. (1981) reported that biperiden (Akineton) had antidepressant effects in depressed patients. We compared the effects of placebo and biperiden in a randomized, double-blind, parallel-design 6-week study. All patients received placebo for the first week and then received either biperiden (< or = 12 mg/day) or a peripherally acting anticholinergic agent, glycopyrrolate (Robinul, 1 mg/day) for 4 weeks. All patients received placebo during week 6. Both groups significantly improved, but biperiden did not demonstrate any significant benefit compared with glycopyrrolate. In a subgroup of patients receiving biperiden, the percentage of rapid eye movement sleep was significantly decreased only in the first week of biperiden compared with the initial placebo week, suggesting that tolerance to the central effects of biperiden developed. Further studies would be needed to determine whether anticholinergic agents possess antidepressant properties.
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Affiliation(s)
- J C Gillin
- Department of Psychiatry, University of California, San Diego, USA
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24
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Abstract
Sleep records from 19 subjects with major depression and comorbid simple phobia were compared retrospectively with 25 patients with major depression alone and 25 normal controls. Groups were matched for age and gender; depressed subjects were matched for severity of depression. All subjects had been free of psychotropic medications at least 2 weeks when recorded. Sleep variables were analysed using one-way ANOVA. Both depressed groups had significantly longer sleep latency than normal controls. Depressed patients with and without simple phobia showed no differences in sleep architecture.
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Affiliation(s)
- C P Clark
- Department of Psychiatry, University of California at San Diego/San Diego VA Medical Center, USA
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25
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Rapaport MH, Thompson PM, Kelsoe JR, Golshan S, Judd LL, Gillin JC. Gender differences in outpatient research subjects with affective disorders: a comparison of descriptive variables. J Clin Psychiatry 1995; 56:67-72. [PMID: 7852255] [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] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND Gender may play an important role in the etiopathophysiology of psychiatric illness and has become a subject of increasing interest because of its possible effects on biological markers, treatment outcome, and prognosis. Intrigued by this issue and as part of our attempt to further characterize research subjects in San Diego, we evaluated male and female research subjects from our affective disorders clinical research center on a variety of measures. Based on epidemiologic data, we postulated that female and male subjects would be similar to epidemiologic samples and would differ in terms of comorbid diagnoses and that female subjects would be more likely to have had a history of previous treatment. METHOD The demographic characteristics; coffee, tobacco, and alcohol consumption patterns; symptom patterns; and current and lifetime comorbid DSM-III-R Axis I diagnoses of 124 female and 69 male outpatient research subjects were contrasted. RESULTS Female research subjects had more comorbid problems with anxiety disorders, were more likely to have been previously treated, and were more likely to have a family history of psychiatric illness. CONCLUSION Male and female research subjects were remarkably similar with respect to most characteristics assessed but, as postulated, differed in terms of their comorbid diagnoses and prior treatment history.
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Affiliation(s)
- M H Rapaport
- Department of Psychiatry, University of California, San Diego School of Medicine, La Jolla 92037
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26
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Gillin JC, Jernajczyk W, Valladares-Neto DC, Golshan S, Lardon M, Stahl SM. Inhibition of REM sleep by ipsapirone, a 5HT1A agonist, in normal volunteers. Psychopharmacology (Berl) 1994; 116:433-6. [PMID: 7701045 DOI: 10.1007/bf02247474] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
In order to test the hypothesis that serotonergic mechanisms inhibit REM sleep via a 5HT1A receptor, we administered placebo and ipsapirone (10 and 20 mg by mouth 15 min before bedtime) to ten normal volunteers in a double blind fashion. Ipsapirone is a relatively selective 5HT1A receptor agonist. As predicted, ipsapirone prolonged REM latency and Mean Latency to Eye Movements (M-LEM), a measure of time between onset of REM sleep and the first eye movement of the REM period, and REM% at both doses compared with placebo. It also reduced sleep efficiency and total REM sleep time at the highest dose. These results support the hypothesis that systemic stimulation of 5HT1A receptors prolong REM latency and inhibit REM sleep.
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27
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Gillin JC, Lardon M, Ruiz C, Golshan S, Salin-Pascual R. Dose-dependent effects of transdermal nicotine on early morning awakening and rapid eye movement sleep time in nonsmoking normal volunteers. J Clin Psychopharmacol 1994; 14:264-7. [PMID: 7962682] [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] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The dose-dependent, acute effects of transdermal nicotine (7 and 14 mg) and placebo, applied 2 hours before bedtime, on sleep and mood were determined in 12 nonsmoking normal volunteers. Compared with placebo patch, transdermal nicotine was associated with early morning awakening and reduced total rapid eye movement (REM) sleep time and REM% in a dose-dependent fashion. On the recovery night after the administration of an active nicotine patch, REM latency and stage 2% were significantly reduced, whereas REM sleep time and REM% increased compared with the active patch. Mood and subjective recall of dreaming were not significantly affected in this study. Although one subject vomited about 10.5 hours after the 14-mg dose, reported side effects were generally mild.
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Affiliation(s)
- J C Gillin
- Department of Psychiatry, University of California, San Diego, La Jolla
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28
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Abstract
Psychostimulant abusers often experience anhedonia, depression, fatigue, craving, and hypersomnia and increased propensity for rapid eye movement (REM) sleep during periods of acute and subacute withdrawal from cocaine and amphetamine. These signs and symptoms may reflect a state of relative functional dopamine depletion in the brain during abstinence. Lisuride, which has dopaminergic agonist effects, has been reported to reduce signs of psychostimulant withdrawal in rodent models of stimulant abuse. These observations prompted us to test the effects of oral administration of lisuride for 3 weeks (up to 4.0 mg daily) on mood and craving ratings in a double-blind, parallel design, controlled study in hospitalized stimulant abusers during acute withdrawal from cocaine or amphetamine. Although administration of lisuride significantly prolonged REM latency and reduced REM time, amelioration of other signs of withdrawal was not significantly greater in lisuride as compared with placebo treated patients. Self-rated craving ratings, however, were low in both groups throughout the hospital stay. Further studies, perhaps in patients with more severe symptoms during withdrawal, are needed to fully test the efficacy of lisuride in the treatment of stimulant withdrawal.
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Affiliation(s)
- J C Gillin
- Department of Psychiatry, University of California, San Diego
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29
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Moeller FG, Gillin JC, Irwin M, Golshan S, Kripke DF, Schuckit M. A comparison of sleep EEGs in patients with primary major depression and major depression secondary to alcoholism. J Affect Disord 1993; 27:39-42. [PMID: 8432959 DOI: 10.1016/0165-0327(93)90095-2] [Citation(s) in RCA: 23] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Polygraphic sleep recordings were compared between patients with primary major depression (MDD), patients with primary alcoholism and secondary MDD, and normals. Patients differed significantly from normals on the following measures: both patient groups showed short REM latency, and REM latency corrected, along with prolonged sleep latency. Secondary depressives differed from controls on several other measures: sleep onset time, total sleep time, delta sleep, REM percent, stage one sleep, stage three sleep, non-REM sleep, stage three and delta sleep in the first non-REM period. Prior research has shown a decrease in non-REM sleep and total sleep time in alcoholic patients who are not currently depressed, and short REM latency in patients with MDD. Thus, our findings suggest an additive effect of two disorders known to affect sleep: alcoholism and depression.
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Affiliation(s)
- F G Moeller
- University of Texas, Southwestern Medical School, Department of Psychiatry, Dallas
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30
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Lauriello J, Kenny WM, Sutton L, Golshan S, Ruiz C, Kelsoe J, Rapaport M, Gillin JC. The cholinergic REM sleep induction test with pilocarpine in mildly depressed patients and normal controls. Biol Psychiatry 1993; 33:33-9. [PMID: 8420594 DOI: 10.1016/0006-3223(93)90275-i] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Previous studies suggested that depressed patients enter rapid-eye movement (REM) sleep more quickly than normal controls following the administration of muscarinic agonists such as arecoline or RS 86. We recently reported that pilocarpine, an orally active muscarinic agonist, induced REM sleep and reduced Stage 3 & 4 (Delta) sleep in young normal volunteers. In this study we present preliminary evidence that pilocarpine had similar effects on REM latency, REM percentage, and Delta (Stages 3 & 4) sleep percentage in depressed patients and controls. Pilocarpine, however, decreased stage-4 sleep in controls more than in depressed patients. Because this group of patients were only mildly depressed at the time of the study, had a high frequency of comorbid substance abuse diagnoses, and had normal electroencephalogram (EEG) sleep patterns under placebo conditions, further studies are necessary to test the hypothesis that depressed patients show hypersensitive cholinergic REM sleep induction.
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Affiliation(s)
- J Lauriello
- Department of Psychiatry, University of California, San Diego
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31
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Abstract
OBJECTIVE Abnormalities in plasma concentrations of beta-endorphin-like immunoreactivity (beta-endorphin) have been reported in depressed patients. This study was done to test the hypothesis that specific clinical characteristics of depression are associated with plasma beta-endorphin concentration. METHOD Plasma beta-endorphin was evaluated in 20 depressed patients diagnosed according to DSM-III-R and in 23 age- and sex-matched comparison subjects, and each was evaluated with the structured Schedule for Affective Disorders and Schizophrenia (SADS). Twelve SADS items involving dysphoric mood and related symptoms were chosen for analysis. RESULTS Within the group of all 43 subjects and within the depressed group, beta-endorphin level correlated significantly with psychic anxiety and with phobia. In the depressed group only, beta-endorphin also correlated significantly with obsessions/compulsions. Concentration of beta-endorphin was not significantly correlated with score on the Hamilton Rating Scale for Depression or Beck Depression Inventory or with scores on other SADS symptom items, including somatic anxiety, insomnia, subjective anger, overt anger, agitation, psychomotor retardation, panic attacks, appetite loss, or total weight loss. In the group of 23 comparison subjects, beta-endorphin did not correlate with Beck or Hamilton depression score or with any of the SADS clinical variables. CONCLUSIONS High levels of plasma beta-endorphin may be associated with more severe anxiety, phobia, and obsessions/compulsions in depressed patients.
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Affiliation(s)
- D F Darko
- Department of Psychiatry, School of Medicine, University of California, San Diego
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32
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Abstract
OBJECTIVE The authors' objective was to test the hypothesis that fatigue affects the activities and employment of subjects with HIV infection and that indices of immunosuppression and inflammation may have statistical utility in predicting fatigue and sleep disturbance. METHOD The authors prospectively asked 112 homosexual men (62 HIV-seropositive subjects and 50 HIV-seronegative comparison subjects) to complete a questionnaire on fatigue and sleep disturbance. In addition, hematocrit, WBC count, CD4+ cell number, lactate dehydrogenase, albumin, and total globulin were measured. RESULTS For HIV-seropositive patients fatigue was significantly more of a problem and interfered more with important activities such as employment and driving than with seronegative comparison subjects. The HIV-infected patients were significantly more likely to be unemployed, to feel fatigued through more hours of the day, to sleep more, to nap more, and to have diminished midmorning alertness. The medical variables could be used to statistically predict fatigue, its interference with daily activities, and employment. CONCLUSIONS Fatigue and sleep disturbances contribute to morbidity and disability in HIV-infected homosexual men, especially those in CDC stage IV (AIDS-related complex or AIDS). Correlation with measures of immunosuppression and inflammation and comparison between fatigued versus nonfatigued groups suggest the possibility of statistical prediction of fatigue by using these measures. Further study is needed to examine the possibility of eventual specific intervention to clinically treat HIV-related fatigue, sleepiness, and sleep disturbance.
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Affiliation(s)
- D F Darko
- Department of Psychiatry, University of California, School of Medicine, San Diego
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33
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Gillin JC, Sutton L, Ruiz C, Darko D, Golshan S, Risch SC, Janowsky D. The effects of scopolamine on sleep and mood in depressed patients with a history of alcoholism and a normal comparison group. Biol Psychiatry 1991; 30:157-69. [PMID: 1655072 DOI: 10.1016/0006-3223(91)90170-q] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In order to determine the effect of an anticholinergic agent on mood and sleep, scopolamine (0.4 mg IM) was administered before bedtime for three consecutive nights to 10 depressed patients (8 with a history of alcohol abuse) and 10 normal comparison subjects. The patients had a small, statistically significant antidepressant response on the second morning of treatment. Scopolamine inhibited rapid eye movement (REM) sleep and prolonged REM latency equally in depressed patients and the normal comparison group. Partial tolerance to the REM inhibiting effect of scopolamine developed between the first and third night of treatment. A REM rebound occurred during recovery nights. These results are consistent with concepts relating central cholinergic mechanisms to the control of REM sleep. Compared with controls, patients showed a greater increase in Stage 2 and Stage 2% and a lesser and increase in Delta (Stage 3 and 4) sleep % and Stage 4% on the first night of treatment. Further, well-controlled studies are needed to determine whether anticholinergic drugs possess clinically significant antidepressant effects.
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Affiliation(s)
- J C Gillin
- Department of Psychiatry, San Diego Veterans Administration Medical Center, CA
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34
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Gillin JC, Sutton L, Ruiz C, Golshan S, Hirsch S, Warmann C, Shiromani P. Dose dependent inhibition of REM sleep in normal volunteers by biperiden, a muscarinic antagonist. Biol Psychiatry 1991; 30:151-6. [PMID: 1912107 DOI: 10.1016/0006-3223(91)90169-m] [Citation(s) in RCA: 24] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We tested the effect of biperiden (2, 4, and 8 mg per os 30 min before bedtime) on the polygraphically recorded sleep of normal volunteers (n = 8). Biperiden is a cholinergic, muscarinic receptor antagonist that may preferentially block the M1 receptor subtype. Compared with placebo, biperiden significantly prolonged rapid eye movement (REM) latency and suppressed REM sleep time and REM percentage in a dose-dependent manner. These REM suppressing effects of biperiden are similar to those previously reported with scopolamine and other nonselective muscarinic receptor antagonists. Because of uncertainties about the pharmacological specificity of biperiden, further studies are needed to determine the mechanism of action and the role of M1 receptors subtypes in the regulation of REM sleep.
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Affiliation(s)
- J C Gillin
- Department of Psychiatry, University of California, San Diego
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35
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Abstract
Nine patients who met both DSM-III and RDC criteria for panic disorder and nine age-matched normal controls received infusions of physostigmine. The patients and normal controls did not differ in either their self-reported or the observer-reported ratings of anxiety, mood, or activation. The two subject groups also did not differ in blood pressure, pulse, or cortisol responses to physostigmine. Physostigmine did not provoke panic attacks in either the control or patients groups.
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Affiliation(s)
- M H Rapaport
- Department of Psychiatry, University of California, San Diego, School of Medicine and Psychiatry Service, La Jolla 92093
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36
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Abstract
OBJECTIVE The authors' goal was to evaluate the utility of mitogen-induced lymphocyte proliferation assays in clinical research in psychoimmunology. METHOD They examined 23 depressed patients and 23 matched comparison subjects with this assay. There were no significant differences between these groups. They then combined the results of this study with the results of their previous study of 20 depressed patients and 20 comparison subjects to examine possible determinants of lymphocyte proliferation in depression. RESULTS Depressed patients with lower proliferative responses than their matched comparison subjects had lower depression subscale, anergia subscale, and total scores on the Brief Psychiatric Rating Scale than did patients with higher proliferative responses than their matched comparison subjects. This finding was unexpected and unexplained. Depressed patients with lower proliferative responses than their matched comparison subjects also had fewer obsessions and compulsions and less psychomotor agitation according to the Schedule for Affective Disorders and Schizophrenia interview than did patients with higher proliferative responses than their matched comparison subjects. Stepwise discriminant analysis and cluster analysis contributed little further understanding of the determinants of in vitro lymphocyte proliferation of cells from depressed patients. CONCLUSIONS Longitudinal studies using multiple serial determinations of mitogen-induced lymphocyte proliferation are the minimal design needed to make this assay useful in further evaluating any immune system changes in depression.
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Affiliation(s)
- D F Darko
- NIMH Clinical Research Center, Department of Psychiatry, University of California, San Diego, School of Medicine
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37
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Gillin JC, Sutton L, Ruiz C, Kelsoe J, Dupont RM, Darko D, Risch SC, Golshan S, Janowsky D. The cholinergic rapid eye movement induction test with arecoline in depression. Arch Gen Psychiatry 1991; 48:264-70. [PMID: 1996921 DOI: 10.1001/archpsyc.1991.01810270076011] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The cholinergic rapid eye movement (REM) induction test using arecoline hydrobromide, a cholinergic muscarinic receptor agonist, was studied in patients with affective disorder and in normal controls to determine whether or not depression is associated with enhanced induction of REM sleep by muscarinic agonists. Arecoline induced REM sleep in a dose-dependent fashion in both patients and controls compared with placebo infusions. Compared with normal controls, patients entered REM sleep significantly more rapidly following intravenous administration of 1.0 mg of arecoline hydrobromide than they did following administration of 0.5 mg of arecoline hydrobromide or placebo. These results, as well as those of previous studies, support the hypothesis that patients with affective disorder show a functional supersensitive induction of REM sleep in response to muscarinic receptor agonists and may be consistent with the hypothesis that functional muscarinic receptor "up regulation" is associated with depression.
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Affiliation(s)
- J C Gillin
- Department of Psychiatry, University of California, San Diego, La Jolla 92093
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38
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Abstract
A number of neuroendocrine abnormalities have been reported in panic disorder patients: the most extensively studied being disturbances of hypothalamic-pituitary-adrenal function (Curtis et al. 1982; Leiberman et al. 1983; Uhde et al. 1988). The recent sequencing and synthesis of corticotropin-releasing hormone now allows direct testing of pituitary responsivity to this neuropeptide in affective and panic disorder patients (Holsboer et al. 1984; Gold et al. 1986; Roy-Byrne et al. 1986; Holsboer et al. 1987; Risch et al. 1988). We report the effects of intravenously administered ovine corticotropin-releasing hormone (0.03 micrograms/kg) on plasma concentrations of adrenocorticotropin hormone (ACTH) and cortisol in a small group of panic disorder patients and age- and sex-matched normal controls.
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Affiliation(s)
- M H Rapaport
- Clinical Neuroscience Branch, NIMH, Bethesda, MD 20892
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39
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Abstract
To assess cellular immune status and the hypothalamic-pituitary (HP) axis in patients with major depression, we examined peripheral blood mononuclear cells (PBMC) and measured the plasma levels of cortisol, adrenocorticotropin hormone (ACTH), growth hormone (GH), and prolactin (PRL). Twenty patients with major depression were compared with 20 control subjects matched for age, sex, and race. The dose-response curves for concanavalin-A (Con-A) and phytohemagglutinin (PHA) stimulation were not significantly different between the two groups. The patients had decreased Con-A-stimulated T-lymphocyte proliferation when compared to the control subjects, but only at the lowest suboptimal concentration of Con-A. None of the four concentrations of PHA-stimulated proliferation were different between the two groups, neither was PHA-induced interleukin-2 production. Within the patient group only, plasma prolactin (PRL) correlated significantly with stimulated lymphocyte proliferation using two optimal concentrations of PHA and one optimal concentration of Con-A, when the proliferation was expressed using the stimulation index.
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Affiliation(s)
- D F Darko
- San Diego Veterans Administration Medical Center, CA 92161
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40
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Abstract
Alterations in peripheral blood leukocyte distribution in major depression, including leukocytosis, neurotrophilia and lymphopenia, have been described. To assess peripheral white blood cells and the hypothalamic-pituitary (HP) axis in drug-free patients with major depression, we measured the total white blood cell count (WBC), and percentage of lymphocytes, and the plasma levels of cortisol, adrenocorticotropic hormone (ACTH), growth hormone (GH) and prolactin (PRL). Twenty male patients with major depression had relative lymphopenia and leukocytosis when compared with 20 age, sex and racematched control subjects. Elevated Beck and Hamilton depression scores correlated with a decreased percentage of lymphocytes, in a group of all subjects combined. There was a weak tendency for elevated growth hormone to correlate with relative lymphopenia in the control subjects only. Relative lymphopenia and leukocytosis may be a part of the psychobiology of major depression.
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Affiliation(s)
- D F Darko
- Psychiatry Service, San Diego Veterans Administration Medical Center, CA 92161
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41
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Abstract
The effects of nocturnal light (500 lux) exposure on plasma melatonin were studied in seven men suffering from unipolar depression and in seven healthy men. Both groups showed significant declines in plasma melatonin concentrations during 1 hour's light exposure. Differential group declines were not detected.
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Affiliation(s)
- M A Cummings
- Psychiatry Service, Jerry L. Pettis Memorial VA Medical Center, Loma Linda, CA 92357
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42
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Rapaport MH, Risch SC, Gillin JC, Golshan S, Janowsky DS. Blunted growth hormone response to peripheral infusion of human growth hormone-releasing factor in patients with panic disorder. Am J Psychiatry 1989; 146:92-5. [PMID: 2492166 DOI: 10.1176/ajp.146.1.92] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Patients with panic disorder (N = 11) and age- and sex-matched normal control subjects (N = 11) were challenged with human growth hormone-releasing factor (GH-RF) (1 microgram/kg i.v.) or placebo in random order. The control subjects had significantly increased plasma growth hormone (GH) levels after GH-RF infusion whereas panic disorder patients did not. At 15 and 30 minutes after GH-RF infusion, GH concentrations were significantly higher in the control subjects than in the patients. These findings with GH-RF extend findings from earlier reports that patients with panic disorder show blunted GH response to phobic stimulation and clonidine.
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Affiliation(s)
- M H Rapaport
- Department of Psychiatry, University of California, San Diego, La Jolla
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43
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Abstract
Activation of the renin-angiotensin-aldosterone system has been hypothesized as a potential pathophysiological factor in premenstrual tension syndrome (PMS). Atenolol is a predominate beta 1-blocker which can decrease plasma renin activity and inhibit the urinary excretion of aldosterone. Sixteen women meeting provisional diagnoses of late luteal phase dysphoric disorder were treated for symptoms of PMS with atenolol (50 mg once daily) in a randomized placebo-crossover double-blind design. The data indicated significant improvements on the irritability, vigor, elation, and friendliness scores in response to atenolol compared to placebo. Significant changes were not found for several other ratings scales, indicating that atenolol improved only selected symptoms in the group as a whole. However, the women who had premenstrual tension symptoms for more than 5 years (n = 8) were improved on most of the rating scales. Atenolol decreased premenstrual plasma aldosterone to a limited extent. There was also a trend in the data toward higher luteal progesterone levels during the month subjects took atenolol. Plasma renin activity and aldosterone correlated with estrogen and progesterone levels during the placebo month but not during the active month.
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Affiliation(s)
- J L Rausch
- Department of Psychiatry M-003, San Diego VAMC, School of Medicine, University of California, San Diego, La Jolla 92093
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44
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Abstract
Alterations in peripheral blood leukocyte distribution in major depression, including lymphopenia, neutrophilia, eosinopenia, and monocytopenia, have been described. The present study was designed to replicate these results, but with methodological improvements, including age-, sex-, and race-matched control subjects; DSM-III and Research Diagnostic Criteria diagnoses based on the Schedule for Affective Disorders and Schizophrenia interview; objective and subjective severity of depression measured quantitatively; and consideration of psychosocial stressors (DSM-III, Axis IV). We found relative lymphopenia and absolute neutrophilia and leukocytosis in depression, but did not find decreased numbers of eosinophils or monocytes. The relative lymphopenia and absolute neutrophilia were present in the subgroup of only unipolar depressed patients, but not in the bipolar, currently depressed subgroup. However, these blood cell changes were not found in a subgroup of patients who had been medication free greater than or equal to 1 month but only in the subgroup of patients using medication at the time of phlebotomy. Groups formed on the basis of psychosocial stress levels were not found to have significant significant intergroup differences in white blood cell (WBC) counts. The clinical significance of these findings needs study. While leukocytosis and neutrophilia can be found in major depression, these changes are perhaps secondary to medication use.
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Affiliation(s)
- D F Darko
- Department of Psychiatry, University of California, San Diego, School of Medicine
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45
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Abstract
To explore changes in immune cell status with changes in the hypothalamic-pituitary (HP) axis in 20 patients with major depression as compared with 20 age-, sex-, and race-matched control subjects, we examined peripheral blood mononuclear cells (PBMC) for total T-cells (T3), total B-cells (B1), two T-cell subsets (T4 and T8), and natural killer cells (NKH1), and we measured the plasma level of cortisol, adrenocorticotropic hormone (ACTH), growth hormone (GH), and prolactin (PRL). The ratio of T4/T8 was increased in the patients. Within the group of control subjects only, increasing age correlated significantly with decreasing plasma PRL. Within the group of patients only, GH positively correlated significantly with T8 and NKH1, as did PRL with NKH1. No between-groups difference was found for T3, B1, T4, T8, NKH1, cortisol, ACTH, GH, or PRL.
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Affiliation(s)
- D F Darko
- Mental Health Clinic, San Diego Veterans Administration Medical Center, CA 92161
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46
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Darko DF, Lucas AH, Gillin JC, Risch SC, Golshan S, Hamburger RN, Silverman MB, Janowsky DS. Cellular immunity and the hypothalamic-pituitary axis in major affective disorder: a preliminary study. Psychiatry Res 1988; 25:1-9. [PMID: 2905815 DOI: 10.1016/0165-1781(88)90152-7] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
To assess cellular immune status and the hypothalamic-pituitary axis in patients with major depression, we examined peripheral blood mononuclear cells and measured the plasma levels of four neurohormones. Eleven patients with major depression had increased % of T4 lymphocytes and decreased concanavalin (Con A) stimulated T lymphocyte proliferation when compared with 11 age-, sex-, and race-matched control subjects. Percent of total lymphocytes labeled as all T lymphocytes, all B lymphocytes, and natural killer cells did not differ in the two groups, nor did mitogen-induced interleukin-2 production. These findings support theories of interaction between depression and immune cell function.
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Affiliation(s)
- D F Darko
- Mental Health Clinic, San Diego Veterans Administration Medical Center, CA 92161
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47
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Risch SC, Golshan S, Rapaport MH, Dupont R, Outenreath R, Gillin JC, Janowsky DS. Neuroendocrine effects of intravenous ovine corticotropin-releasing factor in affective disorder patients and normal controls. Biol Psychiatry 1988; 23:755-8. [PMID: 2835998 DOI: 10.1016/0006-3223(88)90062-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- S C Risch
- Psychiatry Service, San Diego VA Medical Center, CA
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48
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Darko DF, Lucas AH, Gillin JC, Risch SC, Golshan S, Hamburger RN, Silverman MB, Janowsky DS. Age, cellular immunity and the HP axis in major depression. Prog Neuropsychopharmacol Biol Psychiatry 1988; 12:713-20. [PMID: 3265523 DOI: 10.1016/0278-5846(88)90016-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
1. To assess the effect of age on cellular immune status and the HP axis in patients with major depression, we examined peripheral blood mononuclear cells (PBMC) and measured the plasma level of four neurohormones. 2. In 36 subjects, decreasing T lymphocyte response to con A covaried with age. Percent of lymphocytes labeled as T8 lymphocytes tended to decrease and T4/T8 ratio tended to increase with increasing age. 3. Hamilton and Beck scores were significantly different between the two sex and race matched groups of 18 depressed patients and 18 control subjects, and plasma prolactin was significantly higher in depressed subjects. 4. Increasing age correlated with decreasing T lymphocyte response to con A in the combined group of all subjects, and in the control group, but not in the patient group. 5. Hamilton and Beck scores correlated inversely with T lymphocytes response in the combined group of all subjects. 6. Differences in mitogen responsiveness between patient and control groups were not found, having been obscured by the effect of age. 7. These findings indicate the need to age match subjects when studying the interaction between depression and immune cell function.
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Affiliation(s)
- D F Darko
- San Diego Veterans Administration Medical Center, Department of Psychiatry
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49
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Salimi M, Kermani RZ, Djahansouz B, Golshan S. Impairment of alpha receptor activity induced by cold storage in the isolated rabbit duodenum. Pharmacology 1970; 4:341-6. [PMID: 4395834 DOI: 10.1159/000136163] [Citation(s) in RCA: 3] [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: 01/10/2023]
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