Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0011849 (diabetes)
 277,896 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Plasma renin activity (PRA) in 40 diabetic patients and 42 healthy controls was investigated using the method of Pickens in modification of Serebrovskaja et al. (1967). PRA was slightly lower in the whole group of diabetes but the difference was not significant. The subgroup of 20 maturity-onset diabetics had significantly lower PRA in comparison with 22 controls of similar age, while PRA in juvenile diabetics did not differ significantly from matched controls. In patients without clinical signs and symptoms of microangiopathy PRA was as high as in the controls. In diabetics with microangiopathy PRA was significantly lower. PRA was also lower in patients with longer duration of the disease. The stimulation of juxtaglomerular apparatus with sodium free diet and diuretic drugs resulted in an increase of PRA both in controls and diabetics. This suggests a functional depression of PRA in diabetic patients. In diabetics with ketoacidosis PRA was higher than in control subjects and decreased after disappearance of ketoacidosis. A high level was recorded in a patient with hyperosmolar coma and a very low level in a patient with polyneuropathy and severe orthostatic hypotension. The possible mechanisms involved in the changes of PRA in diabetic patients are discussed.
 ...
PMID:Plasma renin activity in diabetic patients. 11 36

In 80 industrial workers producing herbicides (2,4,5-trichlorphenoxyaceticacidsodium and sodiumpentachlorphenolate) in Czechoslovakia the following signs of intoxication caused by 2,3,6,7-tetrachlordibenzodioxin were found: Dermatological: Chloracne and Porphyria cutanea tarda. Internal: Disorders of the metabolism of porphyrins, fats, carbohydrates, plasmaproteins. Neurological: Mainly lesions of the peripheral neurone. Psychiatric: Neurasthenic syndrome and organic lesions. Differences from the usual course of chloracne were observed. Porphyria cutanea tarda acquisita was most obvious, one patient suffered and died from severe atherosclerosis, hypertension and diabetes. Many patients developed polyneuropathy, as verified both by EMG and autopsy. Two patients died from bronchogenic carcinoma.
 ...
PMID:[Chloracne, porphyria cutanea tarda, and other poisonings due to the herbicides]. 13 6

Single fibre electromyography was carried out in patients with polyneuropathy due to uraemia, diabetes, and alcohol. In the two former groups the fibre density within the motor unit and the impulse transmission were mainly normal. In the latter group the fibre density was significantly increased as signs of reinnervation. Impulse transmission was impaired in a number of the action potential complexes, which is typical of active reinnervation. The results may indicate that the diabetic and uraemic polyneuropathies are characterized in the main by demyelination, whereas the alcoholic type is dominated by axonal lesion even at an early stage.
 ...
PMID:Single fibre EMG findings in polyneuropathies of different aetiology. 17 47

The incidence of TIA, stroke, and neuropathy was studied in a community-based maturity-onset diabetic population. The frequencies of TIA and stroke were increased in maturity-onset diabetic patients as compared to the population of Rochester, Minnesota. The median age of occurrence of TIA and stroke in diabetics was 74 years, not significantly different from that in non-diabetics. Diabetic patients with hypertension at the time of diagnosis of diabetes mellitus had an increased frequency of TIA and stroke. Control of hypertension and/or diabetes mellitus was associated with a decreased frequency of TIA or stroke. Obesity, clinical coronary heart disease, and an abnormal electrocardiogram at the time of diagnosis of diabetes mellitus were not associated with a significantly increased frequency of TIA or stroke. The most common type of peripheral neuropathy in diabetes mellitus was distal polyneuropathy. Mononeuropathy and autonomic neuropathy were much less frequent. The frequency of distal polyneuropathy increased with the duration of diabetes mellitus. The frequency of neuropathy was increased in patients with poor control, reemphasizing the importance of diabetic control in the prevention of diabetic complications.
 ...
PMID:Neurologic complications of diabetes mellitus: transient ischemic attack, stroke, and peripheral neuropathy. 21 54

In patients with diabetes, a carefully taken history and meticulously performed neurologic examination enable the clinician to separate superimposed mononeuropathy from more generalized symmetric polyneuropathy. Recognition of mononeuroparhy is important, since often it is reversible.
 ...
PMID:Mononeuropathy in diabetes mellitus: a phenomenon easily overlooked. 21 22

Sensory conduction velocity of the median nerve, motor conduction velocity of both median and tibial nerves, and corresponding distal laterncies are sufficient parameters to establish the diagnosis of polyneuropathy almost with certainty. Considering these six parameters yielded in detection of peripheral nerve dysfunction in 22% of diabetic patients who were free from clinical signs of polyneuropathy. Electroneurographical findings in 340 out of 677 patients with diabetes mellitus were interpreted as evidence of segmental demyelination. Within this group there was the majority of patients with clinical signs of polyneuropathy and with subclinical signs of peripheral nerve dysfunction. There existed a positive correlation between signs of nerve dysfunction with angiopathy, age and duration of the disease. A second group consisting of 243 diabetics with signs of incipient segmental demyelination with or without signs of axonaal degeneration mainly included juvenile patients with a short duration of the disease and with a low frequency of angiopathy.
 ...
PMID:[Diabetic polyneuropathy. 4. Synopsis of electroneurographic findings in diabetics]. 23 78

Serum pyridoxal concentrations were estimated in 13 patients who had both diabetes and carpal tunnel syndrome. The clinical features and response to treatment in these patients did not differ from that seen in non-diabetic patients with this syndrome. No significant difference in mean serum pyridoxal concentrations was noted between diabetics with carpal tunnel syndrome, diabetics without neuropathy, and normal subjects. These results indicate that carpal tunnel syndrome in diabetics is distinct from polyneuropathy in that it is not associated with a reduction in serum pyridoxal levels which is a feature of diabetic polyneuropathy.
 ...
PMID:Carpal tunnel syndrome, diabetes and pyridoxal. 28 85

In a controlled study, corneal sensitivity, vibratory perception of the left index finger and great toe and achilles tendon reflex were examined in 100 diabetes patients and 100 controls. The result showed significantly reduced corneal sensitivity, vibratory perception and increased number of areflexi in the diabetic group. Furthermore, the decrease of corneal sensitivity, vibratory perception and presence of areflexi correlated well to one another and to age, duration of D. M. above 15 years and diabetic retinopathy. Significant intercorrelations suggest that a reduced corneal touch threshold forms part of a polyneuropathy in diabetes. A corneal hypesthesia cannot be considered a valuable index in screening a population for diabetes as previously has been suggested.
 ...
PMID:Diabetic polyneuropathy. Corneal sensitivity, vibratory perception and Achilles tendon reflex in diabetics. 43 74

The vegetative response of the heart in 80 diabetic patients and 24 controls was evaluated by means of four tests: cyclic variations, Valsalva's maneuver, static muscular exercises and postural hypotension. This methodology indicates that vegetative alterations of the heart in the diabetic subjects are frequent (56.25 per cent). The parameters which are first affected are the cyclic variations and the Valsalva's maneuver, and that this disorder increases with the duration of the diabetes, showing a clear correlation with the appearance of peripheral somatic polyneuropathy. Although from a clinical point of view orthostatic hypotension is the more obvious manifestation, its implication in other situations, such as unexplained tachycardia, silent myocardial infarction and sudden death in the diabetic patient, lends great importance to this little-known form of degenerative disorder in diabetes mellitus.
 ...
PMID:[Response of the autonomous nervous system of the heart in diabetes mellitus (author's transl)]. 52 62

789 patients with diabetes mellitus were studied by clinical and electroneurographical investigation. Motor and sensory conduction velocities of the median nerve and motor conduction velocity of the tibial nerve were determined. 86.1% of the patients suffered from juvenile diabetes, and 13.9% from maturity onset diabetes. Average duration of the disease was 9.5 years, average age of the patients was 26.7 years. Clinical signs of polyneuropathy were found in 19.1%. In 40.9% of the patients at least one of 3 conduction velocities was found to be delayed. Patients with clinical signs of polyneuropathy exhibited delayed nerve conduction velocities and delayed distal latencies. Diagnosis of polyneuropathy almost with certainty is possible by determining the three nerve conduction velocities and the three corresponding distal latencies. 22% of patients without clinical signs of polyneuropathy exhibited electroneurographical signs of impaired peripheral nerve function. Heredity, body weight, lipid metabolism, actual metabolic balance, and treatment were found to be without any significant influence on nerve conduction velocity.
 ...
PMID:[The diabetic polyneuropathy. I. Relation between impaired function in peripheral nerves and clinical findings]. 53 78


1 2 3 4 5 6 7 8 9 10 Next >>