Search PubMed⌕ Search

Biomedical subjects

I Bruckner

Publications and source records attributed to I Bruckner.

66 records · Page 4Linked to original sources
PubMedDate not supplied

Application of mathematical methods to the study of familial aggregation in endemic nephropathy. I. The hypothesis of infectious etiology.

Among many etiological factors, infection and the genetic factor are the main two causes which could explain the familial aggregation of endemic nephropathy (EN). The data collected over all the EN cases during 1957--1976 in the endemic village Bistriţa have been analysed for time-space clustering and a particular type of spatial clustering (within household) by the Knox's space-time interaction test and Walter's pair statistic test. The lack of clustering could be interpreted as suggesting the lack of infection (human transmission pattern) in the occurrence of endemic nephropathy.

Humans↗
PubMedDate not supplied

The dynamic of impaired glucose tolerance in women with fetal gigantism.

In a group of 51 women who had given birth to giant children, the glucose tolerance test (GTT) was performed at entry in the study and after intervals of 6 to 12 years. The results of the first determination, estimated according to the WHO's criteria (1980), have revealed an impaired glucose tolerance (IGT) in 7 cases (14%); the second determination showed IGT in 10 cases (20%) and diabetes mellitus in 2 (4%). Insulinemia assays, concomitant with the second performance of GTT, showed the highest values in the diabetic subjects, moderate values in those with IGT, and low values in those with normal glucose tolerance. The presence of obesity in some cases could not be considered as fully responsible for the glucose tolerance impairment in the women with fetal gigantism. The dynamics of glucose tolerance disorders showed variations in time, i.e. the initial pathologic changes were no more recorded on the second testing in the same subjects, while women with normal initial GTT showed high insulinemia or IGT on the second determination.

Adult↗
PubMedDate not supplied

Plasma phosphorus and magnesium values during treatment of severe diabetic ketoacidosis.

Plasma phosphorus and magnesium were determined in 76 diabetics, admitted with severe ketoacidosis (pH less than or equal to 7.20, total CO2 less than or equal to 10 mEq/l) before and 24 hours after beginning the treatment, which did not include supplementary phosphorus or magnesium. Phosphorus presented initially high values (1.76 + 0.69 mEq/l) which fell substantially 24 hours after beginning the treatment (0.87 +/- 0.26 mEq/l); magnesium values, initially low (0.76 +/- 0.19 mEq/l), fell still further within 24 hours of treatment (0.64 - 0.16 mEq/l). For phosphorus (and to a lesser extent for magnesium) calculation of the regression line indicated a direct positive relationship with both hydrogen ion concentrations (r = 0.67) and blood glucose (r = 0.73), the differences being statistically significant. The more rapid the decrease in glycemia and correction of acidemia and the greater the amount of glucose administered in the course of treatment, the more marked was the fall of plasma phosphorus and magnesium values.

Adolescent↗
PubMedDate not supplied

Diagnostic value of serum and urinary lysozyme estimation in malignant hemopathies.

Serum and urinary lysozyme were assessed in 138 patients with malignant hemopathies, of whom 71 with acute leukemias. Serum lysozyme values were found increased in acute myelocytic or monocytic leukemias and normal in lymphocytic leukemias and lymphomas. Serum lysozyme estimation is of value in the diagnosis of acute leukemias which cannot be differentiated by morphologic, cytochemical and cytoenzymatic methods. Renal insufficiency associated with malignant hemopathies is in itself a cause of rise of both the serum and urinary lysozyme values.

Clinical Enzyme Tests↗
PubMedDate not supplied

Urine proteins in renal disease. II. Alpha 2-microgiobulins in tubular proteinurias with special reference to endemic nephropathy.

Urine microglobulins were analyzed in 145 patients with a variety of chronic renal disease, 58 of whom had endemic nephropathy. On agarose-gel electrophoresis, the urinary-protein patterns of either tubular or mixed tubulo-glomerular type invariably showed two to three discrete alpha 2-migrating bands differing slightly in net charge. Marked differences in their relative concentrations occurred from one case to another and, following prolonged storage at 4 degrees C, in the same urine as well. All three fractions showed only a single precipitation line on immunoelectrophoresis when tested against antisera to urinary proteins; thus it would appear that they represent differently charged, but antigenically identical molecular forms of a protein of low molecular weight. The results also suggest that their detection might be used as an indicator for clinical purpose of impaired tubular function.

Alpha-Globulins↗
PubMedDate not supplied

Immunochemical assays for an early diagnosis of endemic nephropathy.

Comparative studies aiming at the detection of certain tubular protein elements by means of Ouchterlony's immunodiffusion, in parallel with lysozyme and guanase assays, were carried out in the unconcentrated urines of 746 subjects, of whom 655 apparently healthy inhabitants (mostly children) from a region with endemic nephropathy (EN) and from Bucharest, as well as 91 adults with EN or various other diseases with renal involvement. The presence of light chains, of lysozymuria exceeding 2 microgram/ml, of beta2 microglobulin and of guanase in the urines of children and adults from the endemic area was significantly more frequent than in the control groups. These immunochemical changes are hence considered as valuable criteria for the detection of EN prior to the uremic stage. They should be looked for, first and foremost, in the young relatives of patients with this disease. In the stage of nitrogen retention the diagnostic value of these tests is reduced, since the same changes can also be found in the urines of patients suffering from other diseases with renal involvement, which show nitrogen retention as well.

Adolescent↗