Publications by authors named "John W. Kasckow"

Background: Despite the prevalence of comorbid late-life treatmentresistant depression (LLTRD) and insomnia in older adults, there is a gap in the literature describing patient factors, such as patients' beliefs about their illnesses and preferences for treatment, that can facilitate recovery. Therefore, we explored the perceptions and treatment preferences of older veterans with LLTRD and insomnia.

Methods: Semi-structured interviews were completed with 11 older veterans.

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Objective: Brief Behavioral Treatment for Insomnia (BBTI) is an efficacious treatment of insomnia in older adults. Behavioral treatments for insomnia can also improve depression. However, it is unknown if BBTI is feasible or has an effect in patients with insomnia and late-life treatment resistant depression (LLTRD).

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Background: Insomnia is frequently co-morbid with depression, with a bidirectional relationship between these disorders. There is evidence that insomnia-specific interventions, such as cognitive behavioral therapy for insomnia, may lead to improvements in depression. The purpose of this systematic review and meta-analysis is to determine whether treatment of insomnia leads to improved depression outcomes in individuals with both insomnia and depression.

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The skin flush response to niacin is abnormally blunted among a subset of patients with schizophrenia (SZ), preferentially associates with SZ compared to other mental illnesses, occurs frequently in nonpsychotic members of SZ-affected families, appears heritable, and shows evidence of genetic association. The niacin response abnormality (NRA) may prove to be a useful SZ endophenotype. Using a laser Doppler flowmeter, we undertook this study to estimate the prevalence of NRA in SZ (n = 70), bipolar disorder (BP, n = 59), and healthy control (HC, n = 87) groups, and to estimate its specificity for the illness.

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Objectives: It remains unclear how augmenting anti-psychotic medications with anti-depressants impacts primary positive and negative symptoms of schizophrenia. In this study, we used data collected from a randomized trial comparing citalopram to placebo for management of subsyndromal depression (SSD) in schizophrenia and schizoaffective disorder, to assess the effects of antidepressant augmentation on positive and negative symptoms.

Materials And Methods: Participants in this study conducted at the University of California, San Diego and the University of Cincinnati, were persons with schizophrenia or schizoaffective disorder aged 40 or older and who met study criteria for SSD.

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Background: The treatment of older patients with schizophrenia and depressive symptoms poses many challenges for clinicians. Current classifications of depressive symptoms in patients with schizophrenia include: Major Depressive Episodes that occur in patients with schizophrenia and are not classified as schizoaffective disorder, Schizoaffective Disorder, and Schizophrenia with subsyndromal depression in which depressive symptoms do not meet criteria for Major Depression. Research indicates that the presence of any of these depressive symptoms negatively impacts the lives of patients suffering from schizophrenia-spectrum disorders.

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This case study applied the assimilation model to examine the changing narrative of an outpatient with schizophrenia and symptoms of depression across a successful pharmacotherapy. The assimilation model describes how clients assimilate painful, problematic experiences. Therapeutic progress is understood to reflect increasing assimilation, measured by the Assimilation of Problematic Experiences Scale (APES).

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Context: Neuropeptide Y (NPY) counters stress and is involved in neuroadaptations that drive escalated alcohol drinking in rodents. In humans, low NPY expression predicts amygdala response and emotional reactivity. Genetic variation that affects the NPY system could moderate stress resilience and susceptibility to alcohol dependence.

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Corticotropin-releasing factor (CRF), encoded by the CRH gene, is a key integrator of stress responses, and, as such, CRH gene variation may contribute to individual differences in susceptibility to stress-related pathology. In rhesus macaques, a single nucleotide polymorphism (SNP) is found within the CRH promoter (-248C--> T). Here, we assessed whether this variant influenced stress responding and, because increased CRF system activity drives alcohol drinking in rodents, we examined whether it predicted voluntary alcohol consumption as a function of prior stress exposure.

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Background: Subsyndromal symptoms of depression (SSD) in older outpatients with schizophrenia are common and clinically important. While many physicians prescribe antidepressants to patients with schizophrenia and schizoaffective disorder who have SSD, evidence for their effectiveness and safety has been meager. We describe a randomized placebo-controlled trial of citalopram in 198 patients.

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Hyperactivity of the hypothalamo-pituitary-adrenocortical (HPA) axis is linked with age-related decrements in cognition and neuronal survival. However, the nature and extent of age-related HPA axis deficits vary considerably across and indeed, within strains. The current study was designed to assess variance in HPA axis function using two rodent models commonly used in aging studies: Fischer 344 (F344) and F344/Brown-Norway F1 hybrid rats (F344/BN).

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Clinicians treating older patients with schizophrenia are often challenged by patients presenting with both depressive and psychotic features. The presence of co-morbid depression impacts negatively on quality of life, functioning, overall psychopathology and the severity of co-morbid medical conditions. Depressive symptoms in patients with schizophrenia include major depressive episodes (MDEs) that do not meet criteria for schizoaffective disorder, MDEs that occur in the context of schizoaffective disorder and subthreshold depressive symptoms that do not meet criteria for MDE.

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Background: Although elevated concentrations of both corticotropin-releasing hormone (CRH) and norepinephrine are present in the cerebrospinal fluid (CSF) of patients with post-traumatic stress disorder (PTSD), the effects of exposure to traumatic stimuli on these stress-related hormones in CSF are unknown.

Methods: A randomized, within-subject, controlled, cross-over design was used, in which patients with war-related PTSD underwent 6-h continuous lumbar CSF withdrawal on two occasions per patient (6-9 weeks apart). During one session the patients watched a 1-h film containing combat footage (traumatic film) and in the other a 1-h film on how to oil paint (neutral film).

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Objective: To test the hypothesis that early life trauma results in adult stress hormone alterations in individuals with personality disorders, the authors examined the relationship between history of childhood adversity and lumbar CSF corticotropin-releasing factor (CRF).

Method: Participants were 20 otherwise healthy men who met DSM-IV criteria for personality disorders. CSF CRF was obtained by lumbar puncture, and childhood adversity was measured by the Childhood Trauma Questionnaire.

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Objective: Results of basal peripheral cortisol measures in posttraumatic stress disorder (PTSD) have been variable. The authors' goal was to measure CSF cortisol concentrations, which more accurately reflect brain glucocorticoid exposure, in subjects with or without PTSD.

Method: CSF was withdrawn from a subarachnoid catheter and plasma from a venous catheter, both indwelling, over a 6-hour interval to determine hourly plasma ACTH and cortisol concentrations and hourly CSF cortisol levels in eight well-characterized combat veterans with PTSD and eight matched healthy volunteers.

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Aging in rodents and primates is accompanied by changes in hypothalamic-pituitary-adrenal (HPA) activity. We examined behavioral and neuroendocrine responses in 3, 15-, and 30-month-old F344/Brown-Norway rats. Basal corticosterone and ACTH levels did not differ with age, although ACTH responses, but not corticosterone responses to restraint stress, were significantly lower in the 30-month-old group relative to 3- and 15-month-old rats.

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Vanilloid receptors (VR) are molecular integrators of painful chemical and physical stimuli. Olvanil is an agonist of the vanilloid receptor; capsazepine is a competitive VR antagonist. The authors were interested in investigated the effects of these compounds on anxiety-like behaviors in rats using the elevated plus maze.

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Following central administration, neuropeptides that decrease the level of cAMP induce feeding. Conversely, cAMP activating neuropeptides tend to elicit satiety. When the inhibitory effect of neuropeptide Y (NPY) on the hypothalamic cAMP production was blocked by pertussis toxin, the potent orexigenic effect of NPY was lost.

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Antidepressant pharmacotherapy in elderly patients is challenging. The authors examined the use of citalopram to treat late-life minor depression. Ten men (mean age: 73+/-2 years) with DSM-IV Minor Depression were administered citalopram 20 mg/day.

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The role of Ca(2+)/cAMP-dependent signal transduction and transcription factor CREB in mediating NPY- Y(1) receptor function was investigated in SK-N-MC cells. The Y(1) receptor agonist, [Leu(31),Pro(34)]-NPY, inhibited forskolin-stimulated cAMP production which was insensitive to thapsigargin or the CaM kinase II inhibitor, KN-93. Although activation of the Y(1) receptor leads to an increase in CREB phosphorylation, [Leu(31),Pro(34)]-NPY inhibited CREB phosphorylation in KN-93-treated cells.

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Depression is a common disorder in late life which can be successfully treated with antidepressant agents. Other disorders such as behavioural agitation associated with dementia may also be treated with antidepressants. In this review, we have examined the use of five serotonin-selective reuptake inhibitors in the treatment of late-life depression and related disorders in the elderly population.

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