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The present review integrates findings of published studies that have evaluated the cognitive function of treated and untreated type 2 diabetic patients and provides a detailed overview of the neuropsychological assessments conducted. Cognitive deficits are observed in older people with glucose intolerance or untreated diabetes but these deficits appear to be attenuated by treatments that improve glycemic control. Cognitive decrements in treated type 2 diabetic patients are most consistently observed on measures of verbal memory (35% of the measures) and processing speed (45% of the measures) while preserved function is observed on measures of visuospatial, attention, semantic and language function. Some studies suggest that deficits in cognitive functions are associated with poorer glycemic control. A number of other factors, such as depression, cardiovascular and cerebrovascular disease, increase these deficits. We conclude that, in diabetic patients who achieve and maintain good glycemic control, type 2 diabetes only has a small impact on cognitive functions before the age of 70 years. However, early onset of type 2 diabetes, poor glycemic control and the presence of micro- and macrovascular disease may interact to produce early cognitive deficits. In older adults (70 years and over), diabetes likely interacts with other dementing processes such as vascular disease and Alzheimer's disease to hasten cognitive decline.
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PMID:The relationship between impaired glucose tolerance, type 2 diabetes, and cognitive function. 1559 Apr 60

We explored the relationship between frequency and perceived burden of different self-management activities and HbA1c%, symptoms of diabetes, fatigue, depression, and quality of life in 292 employees between 30 and 60 years of age with insulin-treated diabetes. Participants completed questionnaires that assess self-management and health-related variables. t-Tests were performed for type 1 (DM1) and type 2 diabetes (DM2) separately to compare the mean health scores of individuals who frequently or infrequently perform self-management activities and who do or do not perceive this as a burden. Participants frequently perform their self-management activities, particularly injection of insulin (96.1%), following dietary guidelines (70.8%) and eating regularly (65.6%). Dietary self-management is most often seen as a burden (70.4%), while injecting insulin is seen as least burdensome (12.8%). The perceived burden of self-management is more strongly related to health than the frequency of self-management. Frequency of self-management especially relates to HbA1c% in DM1. People with DM2 who frequently follow the dietary guidelines have more positive health outcomes. Participants who perceive dietary self-management and injecting insulin as a burden have more negative health outcomes. Because different relationships were found between frequency and perceived burden of self-management and health indicators, both aspects should be assessed and considered separately when evaluating self-management and examining patient's health.
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PMID:Frequency and perceived burden of diabetes self-management activities in employees with insulin-treated diabetes: relationships with health outcomes. 1581 66

We studied 50 Japanese patients who were first diagnosed with type 2 diabetes mellitus. Psychological functioning was assessed by using the Rorschach test and the Yatabe-Guilford Personality test. Analysis indicated that patients who discontinued clinic attendance during the 2-yr. study period had more depression, lower general activity and less extraversion, more negative self-attitudes, and more concern about being helpless than those who continued having regular followups. This study also found that patients who had worse glycemic control 2 yr. after being first diagnosed reported more inferiority feelings, lower general activity, more need for closeness to others, and more emotional demands than those who had better glycemic control. In conclusion, understanding the psychological functioning would be helpful in the management of Japanese patients with type 2 diabetes mellitus.
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PMID:Preliminary study of psychological factors affecting clinic attendance and glycemic control of Japanese patients with type 2 diabetes mellitus. 1582 15

Negative affective states such as depression are associated with premature mortality and increased risk of coronary heart disease, type 2 diabetes, and disability. It has been suggested that positive affective states are protective, but the pathways through which such effects might be mediated are poorly understood. Here we show that positive affect in middle-aged men and women is associated with reduced neuroendocrine, inflammatory, and cardiovascular activity. Positive affect was assessed by aggregating momentary experience samples of happiness over a working day and was inversely related to cortisol output over the day, independently of age, gender, socioeconomic position, body mass, and smoking. Similar patterns were observed on a leisure day. Happiness was also inversely related to heart rate assessed by using ambulatory monitoring methods over the day. Participants underwent mental stress testing in the laboratory, where plasma fibrinogen stress responses were smaller in happier individuals. These effects were independent of psychological distress, supporting the notion that positive well-being is directly related to health-relevant biological processes.
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PMID:Positive affect and health-related neuroendocrine, cardiovascular, and inflammatory processes. 1584 Jul 27

Diabetes is a common medical condition and requires careful management. Depression is a prevalent and recurrent condition among both type 1 and type 2 diabetes. Depression complicates diabetes by promoting poor glycaemic control and increasing risk of other complications. Prompt treatment of depression has significant favourable effects on mood and quality of life and beneficial effects on glycaemic control among the diabetic patients.
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PMID:Depression and diabetes: a risky comorbidity. 1588 22

Accumulating evidence exists that regular exercise offers protection against chronic disorders such as cardiovascular diseases, type 2 diabetes, dementia, and depression. Although acute and chronic exercise has numerous consequences, it is still discussed how contracting skeletal muscles mediate metabolic and physiological effects of benefits on health. For years the search for the stimulus that initiates and maintains the change of excitability or sensibility of the regulating centers in exercise has been progressing. For lack of more precise knowledge, it has been called the 'work stimulus,' 'the work factor' or 'the exercise factor.' In other terms, the big challenge for muscle and exercise physiologists has been to determine how muscles signal to central and peripheral organs. Recently, we identified that muscle fibers produce and release the cytokine IL-6 into the circulation during exercise. We further proposed that IL-6 and other cytokines, which are produced and released by skeletal muscles, exerting their effects in other organs of the body, should be named 'myokines.' In line with that adipokines have been suggested as a term, which is restricted to cover cytokines and other peptides which are produced and secreted by adipocytes, we suggest that the term "myokines" should be used exclusively to describe cytokines or other peptides, which are produced and released by muscle fibers per se. Myokines may represent the link from working muscle to other organs such as the adipose tissue, the liver, and the vascular compartments. Here, we review the literature on muscle- and brain-derived IL-6. We further suggest that myokines may also provide an explanation as to how regular muscle activity influences mood, performance, and cognitive function.
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PMID:Muscle-derived interleukin-6--a possible link between skeletal muscle, adipose tissue, liver, and brain. 1593 12

Coronary heart disease remains a leading cause of mortality in the United States, with 84 percent of persons 65 years or older dying from this disease. Secondary preventive measures, including lifestyle modification and pharmacotherapy, are important for elderly patients because of the variable impacts on morbidity and mortality rates and quality of life. Participating in light to moderate activities significantly decreases mortality rates in elderly patients. Smoking cessation translates into a reduction in overall mortality and morbidity rates at least equal to that of other preventive measures such as aspirin or beta-blocker therapy. Recent studies on the effects of lowering low-density lipoprotein cholesterol levels to below 100 mg per dL have shown a substantial reduction in coronary heart disease mortality and nonfatal myocardial infarction rates, with a persistent effect in patients older than 75 years. Hypertension, manifesting mostly as isolated systolic blood pressure elevation, also should be treated aggressively. Conventional medical therapies for hypertension (e.g., diuretics, beta blockers) and newer agents (e.g., calcium channel blockers, angiotensin-converting enzyme inhibitors), together with sodium restriction, have had a positive effect on cardiovascular mortality and morbidity rates in older patients. With the increasing prevalence of obesity, insulin resistance, and type 2 diabetes, interventions targeting weight reduction and glucose control should be emphasized. Whereas weight-loss strategies are poorly defined in this population, the management of diabetes through dietary modification, exercise, and medications is similar across age groups. The target hemoglobin A1C level is less than 7 percent. Elderly patients are prone to depression and social isolation, and they are more likely to have a lower socioeconomic status than younger patients, which may negatively affect participation in rehabilitation programs and compliance with medical advice and therapy. Strategies aimed at these factors have shown variable results and remain ill-defined.
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PMID:Secondary prevention of coronary heart disease in elderly patients. 1599 66

The present project is based on findings showing that important risk factors for the development of coronary heart disease are frequently associated with a dysregulation in stress-responsive systems. Accordingly, the observed dysfunction in these systems might represent a background variable with a significant effect on the development and course of coronary heart disease. Examining a random population sample we aim at testing the hypothesis whether cardiac risk factors such as arterial hypertension, type 2 diabetes, visceral obesity and depression might be associated with a dysfunction in a major stress-responsive system, namely the hypothalamic-pituitary-adrenal (HPA) system. Assessment of the functional status of this system will be carried out by measuring cortisol concentrations in saliva at four set measurement times throughout a normal day while subjects continue to carry out their usual activities. This methodology enables us to characterize HPA system activity with regard to basal tone, reactivity to a specific stressor, circadian rhythm and overall activity. Our study population includes 1250 subjects aged 50 to 70 years taken from a representative sample of the general public of the city of Augsburg, Germany (KORA F3). Through close cooperation within the framework of the present project we will be able to examine neuroendocrine issues in association with detailed demographic and clinical data of a representative population sample.
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PMID:[Dysfunction of the hypothalamus-pituitary-adrenal system--background variable of relevant cardiovascular risk factors?--description of a cooperative project]. 1603 24

Comprised mainly of depression, anxiety, and high neuroticism, psychopathology diminishes the effectiveness of many chronic pain treatments. But, it is not known if it is associated with diminished opioid analgesia in patients with chronic, noncancer pain. We tested the hypothesis that psychopathology diminishes opioid analgesia in patients with discogenic low back pain in 60 patients not on opioids in a double blind, placebo controlled, random crossover designed trial. Patients were stratified into three groups of psychological symptom severity (LOW, MOD, and HIGH), based on composite scores on depression, anxiety for pain, and neuroticism scales. Subjects were given intravenous morphine (4-6mg dosed by ideal body weight) and placebo in random order on separate visits, and completed serial pain ratings over three hours at each session. With 20 subjects per group, there were nonsignificant differences between groups in the distribution of age, gender, baseline pain (avg. 6.1/10), radicular pain, and morphine dose (5.0mg). For morphine analgesia, using a total pain relief calculation (TOTPAR), the LOW group had 65.1% TOTPAR vs. 41.0% in the HIGH group, P=.026. For placebo analgesia the LOW group had 7.7% TOTPAR vs. 23.5% in the HIGH group, P=.03. A morphine minus placebo analgesia calculation revealed 59.2% TOTPAR in the LOW group vs. 21.7% in the HIGH group, P=.0001. High levels of psychopathology are associated with diminished opioid analgesia in patients with discogenic low back pain. These results have implications for the prescription of oral opioids to patients with chronic low back pain and psychopathology.
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PMID:The association between negative affect and opioid analgesia in patients with discogenic low back pain. 1596 85

Both diabetes and depression are highly prevalent. Patients with diabetes experience higher rates of depression compared to the general population. When present, depression is associated with an increase in the morbidity and mortality of diabetes, suggesting the importance of treatment in this population. The objective of the present study was to characterize depressive characteristics in depressed patients with and without comorbid diabetes. Seventeen patients with type 1 or type 2 diabetes were drawn from outpatient clinical trials. Depressed patients without diabetes were identified from the same studies. Unpaired t-tests and multiple chi-square analyses were used to compare demographic and clinical characteristics between the samples. Diabetic patients in our sample were more depressed and reported lower levels of somatic well-being and contentment compared to non-diabetic patients. The samples did not differ significantly along other dimensions of depression, including course of illness, response to previous treatments and comorbid conditions. These findings suggest that depressed diabetic patients are more similar than not to non-diabetic depressed patients, although important differences exist.
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PMID:Clinical characteristics of depressed patients with comorbid diabetes mellitus. 1631 16


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