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Query: UMLS:C0011854 (type 1 diabetes)
 20,749 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Stiff person syndrome (SPS) has been associated with autoimmune diseases, such as Type 1 diabetes mellitus and autoimmune thyroid disease (Hashimoto's thyroiditis), among others. The association of SPS with hyperthyroidism is extremely rare. We describe a patient with uncontrolled Graves' disease and undiagnosed SPS, who presented initially with acute ataxia simulating a cerebrovascular accident. Initiation of immunosuppressive therapy dramatically improved the patient's Graves' disease within 2 weeks but the neurological symptoms were not alleviated after a follow-up period of 3 years.
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PMID:Acute ataxia, Graves' disease, and stiff person syndrome. 1771 46

Individuals with diabetes mellitus are at considerably higher risk for coronary artery disease compared with individuals without diabetes. In the United States, diabetes is the most prevalent factor putting patients at risk for coronary events. Intensive control of blood glucose has been demonstrated to reduce the risk for cardiovascular disease in patients with type 1 diabetes, but this has yet to be proved in patients with type 2 diabetes. Aggressive management of established cardiovascular risk factors using blood pressure-lowering and lipid-lowering therapies (particularly the 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors, or statins) has been conclusively shown to reduce cardiovascular risk in patients with type 2 diabetes. Patients with type 2 diabetes remain at residual excess risk compared with individuals without diabetes, such that there is still a need for novel therapeutic approaches. Thiazolidinediones (TZDs) may have beneficial effects on cardiovascular disease in diabetes beyond improving blood glucose control. Although the evidence regarding rosiglitazone is yet to mature, completed and ongoing clinical trials with pioglitazone suggest that this TZD may be a novel treatment for managing cardiovascular risk in patients with diabetes. Addition of pioglitazone to existing therapy in high-risk patients with diabetes and atherosclerotic disease improves cardiovascular outcomes, and may be particularly beneficial for patients with previous myocardial infarction or stroke.
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PMID:Prevention of macrovascular disease in patients with diabetes mellitus: opportunities for intervention. 1782 43

Hypoglycaemia is the commonest side-effect of insulin treatment for diabetes, and is the single greatest barrier to achieving and maintaining good glycaemic control. Severe hypoglycaemia (requiring assistance for recovery) is associated with significant morbidity and is feared by most people with type 1 diabetes and their families. It causes stress and anxiety and may influence self-management and glycaemic control. The annual prevalence of severe hypoglycaemia is around 30% in people with type 1 diabetes, and is higher in those with risk factors such as strict glycaemic control, impaired awareness of hypoglycaemia and increasing duration of diabetes. It is also common during sleep (nocturnal hypoglycaemia). Neurological manifestations include coma, convulsions, transient hemiparesis and stroke, while reduced consciousness and cognitive dysfunction may cause accidents and injuries. Cardiac events may be precipitated such as arrhythmias, myocardial ischaemia and cardiac failure. Hypoglycaemia can affect all aspects of life, including employment, driving, recreational activities involving exercise, and travel, and measures should be taken in all of these situations to avoid this potentially dangerous side-effect of insulin therapy.
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PMID:How hypoglycaemia can affect the life of a person with diabetes. 1808 77

The significance of the metabolic syndrome in type 1 diabetes is not well understood. This study aimed to estimate its prevalence and attendant complications. Four hundred twenty-seven type 1 diabetic subjects were grouped according to the presence or absence of metabolic syndrome (WHO criteria). Macro- and microvascular complications were compared between the groups as individual and as composite endpoints. Data were analyzed for the total cohort and in subgroups according to duration of diabetes quartiles (<6.9, 7-12.9, 13-19.9, and >20 years) and year of presentation. Fifteen percent of individuals fulfilled the WHO criteria for metabolic syndrome, and of these, 26.9% were insulin resistant, as compared with 3.4% of those without metabolic syndrome [odds ratio (OR)=8.9, P=.001]. Both BMI and metabolic syndrome showed an increasing trend from 1992 to 2003. Those with metabolic syndrome required significantly higher insulin dosage [0.9 (0.7-1.2) vs. 0.6 (0.5-0.9) units/kg, P=.03], were older [35.0 (26.2-47.3) vs. 29.7 (23.4-36.4) years, P=.002], and had longer duration of diabetes [19.7 (10.7-25.6) vs. 12.1 (6.3-17.9) years, P=.0001]. They also had a significantly higher macrovascular composite endpoint (OR=3.3, P=.02) as well as higher macrovascular and microvascular composite endpoint (OR=3.1, P=.0001). The prevalence of stroke (OR=22.8, P=.008), peripheral vascular disease (OR=7.3, P=.05), and severe retinopathy (OR=3.7, P=.01) is higher in subjects with metabolic syndrome in the >or=20-year quartile group; in addition, these subjects have higher macrovascular composite endpoint (OR=3.9, P=.03) and macrovascular and microvascular composite endpoint (OR=2.9, P=.03). This remained so even when subjects with albuminuria were excluded. Some individuals with type 1 diabetes can also have metabolic syndrome. They are more prone to complications and require even more intensive glycemic control and reduction of macrovascular risk factors.
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PMID:The metabolic syndrome in type 1 diabetes: does it exist and does it matter? 1819 Oct 73

The prevalence of diabetes worldwide is increasing rapidly in association with the increase in obesity. Complications are a major fear of patients with diabetes. Complications of diabetes affect many tissues and organs, causing retinopathy, nephropathy, neuropathy, cardiovascular diseases, peripheral vascular diseases, stroke, and periodontal pathologies. Immunologic abnormalities are associated with type 1 and type 2 diabetes and diabetic complications. T cell abnormalities are believed to be the major cause of autoimmune disease in type 1 diabetes, leading to the destruction of pancreatic islets. In type 2 diabetes, inflammation and activation of monocytes are postulated to be important for enhancing insulin resistance and may contribute to the loss of insulin secretory function by islet cells. Many factors can enhance insulin resistance, including genetics, a sedentary lifestyle, obesity, and other conditions, such as chronic inflammation or infection. Increases in inflammation, such as activation of monocytes and increased levels of inflammatory markers, e.g., C-reactive protein, plasminogen activator inhibitor-1, and other cytokines, were reported in insulin-resistant states without diabetes. One possible mechanism is that abnormal levels of metabolites, such as lipids, fatty acids, and various cytokines from the adipose tissue, activate monocytes and increase the secretion of inflammatory cytokines, enhancing insulin resistance. According to this model, obesity activates monocytes and enhances insulin resistance, increasing the risk for type 2 diabetes. Abnormalities in innate immunity might also participate in the development of diabetic complications. In general, hyperglycemia is the main initiator of diabetic retinopathy, nephropathy, and neuropathy, and it participates in the development of diabetic cardiovascular diseases. Although the precise role of inflammation in the development of diabetic microvascular diseases is still unclear, it is likely that inflammation induced by diabetes and insulin resistance can accelerate atherosclerosis in patients with diabetes. Also, it was shown that conditions with an inflammatory basis, such as obesity and type 2 diabetes, can contribute to periodontal disease, suggesting that periodontal abnormalities may be partly influenced by inflammatory changes. Further research is required to confirm the role of inflammation and the onset of diabetes, microvascular diseases, and periodontal pathologies.
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PMID:The role of inflammatory cytokines in diabetes and its complications. 1867 7

Diabetes mellitus and arterial hypertension are two common diseases that often coexist. Patients with diabetes have much higher rate of hypertension than that in general population. The co-existence of these disorders appears to accelerate microvascular and macrovascular complications and greatly increases the cardiovascular risk, risk of stroke and end stage renal disease. Arterial hypertension is clearly related to nephropathy in subjects with type 1 diabetes. In patients with type 2 diabetes insulin resistance seems to play a pivotal role in the pathogenesis of hypertension. Several well designed randomized controlled trials have provided evidence that patients with diabetes will benefit from a more aggressive treatment of hypertension. This benefit is seen at blood pressure level<130/80 mmHg. Moreover, most diabetic patients with hypertension require combination therapy to achieve optimal blood pressure goals. Angiotensin-converting enzyme inhibitors, angiotensin-receptor blockers, diuretics, beta-adrenoreceptor blockers and calcium- channel blockers are all effective antihypertensive agents in type 2 diabetes mellitus and no comparative trial showed the superiority of any particular class in either lowering blood pressure or reducing cardiovascular morbidity and mortality. On the basis of experimental arguments and clinical observations that have shown their apparent superiority in slowing diabetic nephropathy, angiotensin-converting enzyme inhibitors or angiotensin-receptor blockers are preferred as the first choice alone or in combination with diuretics. Second choice should be long-acting calcium-channel blockers or cardioselective beta blockers. Clinicians should be aware of the need for aggressive treatment of hypertension and spend more time in order to provide maximal benefit to the treatment of diabetes mellitus and hypertension.
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PMID:Arterial hypertension in diabetes mellitus: from theory to clinical practice. 1892 53

The hippocampus, a limbic structure linked to higher brain functions, appears vulnerable in diabetic subjects that have a higher risk of stroke, dementia, and cognitive decline. The dentate gyrus (DG) of the hippocampus is one of the limited neurogenic brain areas during adulthood; neurons born in the DG are involved in some types of learning and memory processes. We found a decrease in the ability for proliferation and neuronal differentiation of newborn cells, measured by bromodeoxyuridine incorporation in the DG, from streptozotocin-induced diabetic mice. The hilar region, formed by mature neurons presenting higher sensitivity to brain damage, showed a reduced neuronal density in diabetic mice with respect to vehicle-treated mice. Interestingly, in a spontaneous model of type 1 diabetes, we corroborated a decrease in the rate of neurogenesis in the nonobese diabetic mice compared to control strains, and this reduction was also found during the prediabetic stage. The antidepressant fluoxetine administered over a period of 10 days to diabetic mice was effective in preventing changes in proliferation and differentiation of new neurons. Confocal microscope studies, including using neuronal and glial markers, suggested that differentiation toward a neuronal phenotype was decreased in diabetic animals and was reversed by the antidepressant treatment. In addition, the loss of hilar neurons was avoided by fluoxetine treatment. Several reports have demonstrated that high susceptibility to stress and elevated corticosterone levels are detrimental to neurogenesis and contribute to neuronal loss. These features are common in some types of depression, diabetes, and aging processes, suggesting they participate in the reported hippocampal abnormalities present in these conditions.
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PMID:Neuronal plasticity and antidepressants in the diabetic brain. 1923 43

The control of glycosylated hemoglobin (HbA(1c)) levels is crucial to the successful treatment of patients with diabetes mellitus (T2DM). Glycemic control is a cornerstone for reducing end-organ disease, and HbA(1c) is the benchmark for defining glucose control over long durations. The author reviews available information from published clinical trials regarding the benefits of tight glycemic control in type 1 diabetes mellitus (T1DM) and type 2 diabetes mellitus (T2DM). He notes that published data support the use of tight glucose control for reducing risks of retinopathy, nephropathy, and neuropathy in both patients with T1DM and patients with T2DM. He also notes that early aggressive insulin management of younger individuals with T1DM led to reductions in the incidence of myocardial infarction (MI), stroke, and death. However, published data do not clearly support benefits of tight glucose control for the prevention of cardiovascular events in older patients with long-standing T2DM. The author also reviews recommended treatments for achieving and maintaining glycemic control in patients. He concludes that the most successful treatment requires that physicians encourage patients to actively participate in the management of their own disease, and that physicians provide patients with opportunities to learn the cornerstones of effective therapy.
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PMID:Achieving glycemic control: cornerstone in the treatment of patients with multiple metabolic risk factors. 1945 Dec 56

More intensive diabetes control prevents microangiopathy in patients with both type 1 diabetes and type 2 diabetes. The data related to prevention of macrovascular disease in patients with type 2 diabetes are controversial. The data confirming benefit of the HbA(1c) levels below 6.5% came almost exclusively from epidemiological studies. The following article reviews the data from five large clinical randomized trials which compared the more intensive glucose lowering strategy with the standard antidiabetic treatment i.e. UKPDS, PROactive, ACCORD, ADVANCE and VADT. Metaanalysis of five trials showed a highly significant reduction of the incidence of non fatal myocardial infarction [OR 0.84 (95% CI 0.75-0.93), p = 0.001] in patients with intensive glycemic control. No significant differences were observed by combined analysis for the non-fatal stroke, cardiovascular mortality and all-cause mortality between the compared groups. The reason for the discordance of the results of the epidemiological and interventional studies is not clear. The possible explanations could include short duration of the trials to show effect of glucose lowering, as well as attenuating of the beneficial effect of better glycemic control by increased hypoglycemia-related mortality in patients with preexisting cardiovascular disease.
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PMID:Effect of intensive glycemic control on cardiovascular outcomes and all-cause mortality in type 2 diabetes: Overview and metaanalysis of five trials. 2011 34

In type 1 and 2 diabetes mellitus patients, hyperglycaemia is independently related to the development of microvascular and macrovascular complications. Glycaemic targets and the benefits of intensive versus conventional glucose control are under debate. The purpose of this review is to provide an overview of the randomized controlled trials and meta-analyses comparing the effects of intensive versus conventional glucose control on microvascular and macrovascular complications in type 1 and 2 diabetes. MEDLINE and Cochrane database searches were performed with a limit on randomized controlled trials or meta-analysis and keywords related to glucose control and diabetes. In addition, related articles and reference lists of relevant articles and guidelines were reviewed. Nine randomized controlled trials, three in type 1 and six in type 2 diabetes, and four meta-analyses in type 2 diabetes were reviewed. These studies included more than 30,000 patients. On the basis of these trials and meta-analyses, it can be concluded that intensive glucose control has a beneficial effect on microvascular complications (retinopathy, nephropathy, neuropathy) in both type 1 and type 2 diabetes patients. The risk reduction of developing a microvascular complication varied between 25% and 76%. Particularly in patients with type 2 diabetes, there was a 10-15% decrease in nonfatal myocardial infarction with intensive glucose control, but no effect on stroke, cardiovascular death or all-cause mortality was observed. There was a beneficial effect of intensive glucose control on cardiovascular disease in patients with type 1 diabetes in only one trial. In all studies, intensive glucose control was associated with at least twice the risk for serious hypoglycaemia than the conventional-control group. In conclusion, compared with conventional glucose control, intensive glucose control is associated with fewer microvascular complications in both type 1 and type 2 diabetes, a decrease in coronary events, especially in type 2 diabetes, and more serious hypoglycaemia.
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PMID:Influence of intensive versus conventional glucose control on microvascular and macrovascular complications in type 1 and 2 diabetes mellitus. 2108 Jul 40


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