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Biomedical subjects

E Gjone

Publications and source records attributed to E Gjone.

At least 91 records · Page 5Linked to original sources
PubMed1976

Triglyceride lipases in acute hepatitis.

Two triglyceride lipases in postheparin plasma, the lipoprotein lipase (LPL) and the hepatic triglyceride lipase (H-TGL) were separated by heparin-sepharose affinity chromatography and studied in controls and patients during the course of acute hepatitis. All three patients had increased content of triglycerides in the low density lipoproteins, and two of them had hypertriglyceridemia. Low activities of both lipases were found in the acute stage of the disease in all three patients. Concomitantly one of the patients had absolute low lecithin: cholesterol acyltransferase (LCAT) activity, and in the two other patients a relative LCAT deficiency was present. The increased content of triglycerides in LDL that may be found in liver disease, may not only be due to low H-TGL and LPL, but also LCAT deficiency.

Acute Disease↗
PubMed1976

Changes in the concentration of lipoprotein-X during incubation of postheparin plasma from patients with familial lecithin: cholesterol acyltransferase (LCAT) deficiency.

The concentration of lipoprotein-X (LP-X) has been studied in six patients with familial lecithin:cholesterol acyltransferase (LCAT) deficiency before and after the administration of heparin. In preheparin plasma, LP-X was present in all the patients, the concentrations ranging from 40 to 251 mg/100 ml. When postheparin plasma samples were incubated at 37 degrees C for 4 hours, LP-X could not be detected, whereas it was still present before incubation. LCAT activity was absent in the preheparin as well as in the postheparin samples. Accordingly, the changes in the concentration of LP-X could not be attributed to alterations in plasma LCAT activity. An increase in lysolecithin and a decrease in lecithin was observed during incubation of postheparin plasma samples.

Acyltransferases↗
PubMed1976

Ileostomy in ulcerative colitis. Results in 149 patients.

The operative mortality among 144 patients treated with proctocolectomy and ileostomy for ulcerative colitis was 7.6%. Half the patients had fulminating colitis. Only 4 patients died during the follow-up period. Intestinal obstruction needing laparatomy occurred in 8.6%. Ileostomy revisions have been carried out in 13%, and significantly more often in females than males owing to a higher frequency of stoma retraction. Other ileostomy problems (leakage, skin soreness, excoriation) were experienced by nearly half the patients. These problems were episodic in the majority and could usually be remedied by instruction and new devices. Less than 7% used colostomy bags. In the remainder the changing interval appeared to be a measure of ileostomy success. The average length of the ileostomy spout was significantly longer in males without ileostomy problems (5.8 cm) than in males having leakage (3.7 cm). This difference was not apparent in females. Working and sexual impairment was rare. The success of an ileostomy depends on proper management, i.e., access to expert advice, instruction, training, follow-up, and adequate supplies of appliances. A stoma therapist on the staff is therefore extremely valuable.

Adult↗
PubMed1976

Measurement of two plasma triglyceride lipases by an immunochemical method: studies in patients with hypertriglyceridemia.

Postheparin plasma lipolytic activity consists of two hydrolytic activities, hepatic triglyceride lipase and lipoprotein lipase. These two enzymes were separated and partially purified by means of ammonium sulfate precipitation and affinity chromatography using Sepharose with covalently linked heparin and concanavalin A, respectively. Antibodies were produced against hepatic triglyceride lipase and they did not cross react with lipoprotein lipase. Optimal conditions for selective precipitation of hepatic lipase and specific measurement of these two lipases were investigated. This method was applied to the study of 15 patients with hypertriglyceridemia and 8 patients with familial lecithin-cholesterol-acyltransferase deficiency of whom 6 also had a marked elevated plasma triglyceride concentration. All patients had normal values of hepatic plasma lipase. All 8 patients with Type I and 2 of 4 patients with Type V hyperlipoproteinemia had lipoprotein lipase activities that were markedly reduced. The patients with Type III hyperlipoproteinemia and all 8 patients with lecithin-cholesterol-acyltransferase deficiency also had normal lipoprotein lipase values. These studies emphasize the necessity for differentiating between triglyceride lipase activity of hepatic and extrahepatic origin in evaluating patients with impaired triglyceride metabolism.

Acyltransferases↗
PubMed1976

The disease activity of ulcerative colitis and Crohn's disease.

The disease activity in ulcerative colitis and Crohn's disease was studied. Parameters found to reflect the disease activity were given scores from 1 to 4. The score obtained by a patient compared with the maximum scores gives the percentage disease activity. The regressions between the percentage disease activity and the ESR in ulcerative colitis and Crohn's disease were r=0.68 (p less than 0.001) and r=0.48 (p less than 0.001), respectively. The different activity parameters have different time response curves explaining the occasional slight correlation. The percentage disease activity represents the mean activity of the different parameters at a given time. It is proposed to define slight, moderate, and severe ulcerative colitis or Crohn's disease as percentage disease activity of less than 30, 30-70 and greater than 70 per cent, respectively.

Blood Sedimentation↗
PubMed1976

Serum bile acid concentrations in patients with liver disease.

An enzymatic-fluorimetric method using a highly purified 3alpha-hydroxysteroid dehydrogenase (Sterognost-3alpha, Nyco) was used to determine fasting serum bile acid concentrations on 49 occasions in 43 patients with various liver diseases. A two-hour postprandial bile acid determination was carried out on 29 occasions in 27 of the patients. Fasting bile acid concentration correlated significantly both in cholestatic hepatobiliary and in parenchymatous liver disease to serum bilirubin and aspartate aminotransferase (ASAT) but not to alanine aminotransferase (ALAT), alkaline phosphatase, or albumin. The two-hour postprandial bile acid concentration was above normal in all patients with biochemical and/or histological signs of hepatobiliary disease, also when fasting concentration was within normal limits. In parenchymatous liver disease correlations existed between the two-hour postprandial bile acid concentration and bilirubin, ASAT, and ALAT. The sensitivity of serum bile acid estimation was compared to other liver function tests. Both the fasting and the postprandial serum bile acid concentrations tended to be more sensitive tests of hepatobiliary disease than bilirubin, ASAT and ALAT.

Adult↗
PubMed1976

Nephrotic syndrome in ulcerative colitis.

Complicating disorders in various organs outside the intestinal tract are common in ulcerative colitis. This report deals with the occurrence of nephrotic syndrome in two patients with long-standing ulcerative colitis. In the patient studied in most detail, 2 episodes have taken place, the first developing into uremia. After colectomy had been performed, rapid improvement of renal function took place. The morphological changes in kidney biopsies were compatible with the presence of focal glomerular sclerosis. Activity in the complement system and a favorable response to steroid treatment indicate that humoral immune mechanisms are of pathogenetic importance with regard to the renal disease in these two patients. To our knowledge nephrotic syndrome has not previously been described as a complication to ulcerative colitis.

Adult↗
PubMed1975

Quantitative studies of lipoprotein-X in familial lecithin: cholesterol acyltransferase deficiency and during cholesterol esterification.

In eight patients with familial lecithin: cholesterol acyltransferase (LCAT) deficiency the plasma concentration of the abnormal lipoprotein LP-X ranged from 43 mg/100 ml to 251 mg/100 ml with a mean of 127 mg/100 ml. This is above the mean level of LP-X found in a group of patients with intrahepatic cholestasis (49 mg/100 ml) and below the mean level found in patients with extrahepatic cholestasis (341 mg/100 ml). Following blood transfusions, an increase in LCAT activity and a decrease in the plasma concentration of LP-X were observed. This decrease was not a simple dilution phenomenon. Quantitation of LP-X during long-term incubation of a whole plasma system demonstrated that LP-X was a source of free cholesterol (FC) in the LCAT reaction. More free cholesterol was derived from LP-X during cholesterol esterification than corresponding to the percentage of the plasma free cholesterol found in the LP-X fraction. The present investigation did not answer the question whether LP-X only was an easily accessible source of free cholesterol for cholesterol esterification or whether LP-X acted directly as a substrate for the LCAT reaction.

Acyltransferases↗
PubMed1975

Genetics of LCAT (lecithin: cholesterol acyltransferase) deficiency.

Since 1967 a syndrome characterized by renal disease, normochromic anaemia and corneal opacities has been described in 7 members of 3 different Norweigan families. The patients have low levels of esterified cholesterol and lack LCAT (lecithin: cholesterol acyltransferase) activity in plasma. The genetic basis of the disorder seems to be the presence of a LCAT deficiency gene in double dose. This gene is probably the result of a single mutational event. Linkage studies revealed non-random assortment between LCTA deficiency and serum haptoglobin (Hp) types. After Hp subtyping a combined lod score of 3-41 at a recombination fraction of 0-00 was obtained. Association was revealed between the LCAT deficiency gene and the Hp-1S gene. We propose that the LCAT gene is situated close to the alpha-haptoglobin locus on chromosome no. 16.

Acyltransferases↗
PubMed1975

Graded gastrectomy for duodenal ulcer -- a five-year prospective study.

One hundred and twelve consecutive patients selected for surgical treatment for duodenal ulcer disease were treated by a graded gastrectomy according to the Moynihan modification of the Billroth II partial gastrectomy. A large partial gastrectomy (R) (2/3-3/4 gastrectomy) was done in patients who after maximal stimulation with histamine showed a high acid output (MAO greater than 30 mEa/hr), and a small resection (r) (1/3-1/2 gastrectomy) in low secretors (MAO less than 30 mEq/hr). The material was prospectively controlled by admission to hospital at 3 months, 1 year and 5 years postoperatively. The preoperative values of MAO found in R and r were 42.8 and 21.5 mEq/hr (p less than 0.001), respectively. The postoperative MAO values at the 3-month control were 4.5 and 3.0 mEq/hr by R and r, respectively, which shows that the grading of resection had been successful. Atrophic gastritis increased in frequency from 4% at the time of operation to 72% at the 1-year control...

Adolescent↗
PubMed1975

Early colectomy in severe ulcerative colitis.

Before 1 February 1967 patients with severe attacks of ulcerative colitis were usually operated on after a prolonged period of medical treatment, and the mortality was 22%. During a 7-year period, beginning 1 February 1967, early colectomy has been perfomed in 21 patients with toxic megacolon and 58 patients with fulminating colitis. Immediate mortality in these 79 patients was 1.2% (one death). Two more patients died in connection with secondary operations. Thus the overall operative mortality in the present series was 3.7%.

Adolescent↗
PubMed1975

Humoral immune system activity in inflammatory bowel disease.

In vivo activation of complement components C3 and GBG as revealed by crossed immunoelectrophoresis reflects humoral immune system activity in disease. These methods have been applied to a material of 25 patients with ulcerative colitis (UC) and 29 patients with Crohn's disease (CD). Signs of activity in the complement sequence were observed in approximately half the patients of both categories. Fifty blood samples from 30 healthy controls were all negative. The presence of complement activation was correlated with disease activity in both groups, and in patients with CD this could also be shown in longitudinal studies in single patients. In UC complement activation was correlated with the extent of the disease process. The serum levels of factors C4, GBG, and C3 in the patient groups did not differ significantly from those found in the normals.

Animals↗
PubMed1975

Ileorectal anastomosis in ulcerative colitis. Results in 57 patients.

The early results of colectomy and ileorectal anastomosis (IRA) in 57 patients with ulcerative colitis seemed fair. The operative mortality was relatively low (7%) also in fulminating cases (10.5%), which constituted one-third of the material. The late results were less satisfactory. Half the survivors were in need of rectal extirpation and ileostomy because of rectal dysfunction. Until now 6% have developed cancer of the rectal stump. The early diagnosis of this condition was difficult. The results regarding rectal function, stenosis, and inflammation were significantly worse in women than in men. Moreover, dyspareunia was a severe problem in more than half the women. We have abandoned IRA in the treatment of ulcerative colitis.

Adolescent↗
PubMed1975

The esterification of cholesterol in plasma after acute myocardial infarction.

The rate of plasma cholesterol esterification (LCAT activity) and the concentration of eight proteins in the plasma have been studied in the ten male patients during the course of acute myocardial infarction. Samples were drawn 22 hr, 3 days, 8 days, 2 weeks, and 7 weeks after the onset of the acute myocardial infarction. The changes of the plasma proteins were typical for the acute-phase reaction. LCAT activity decreased initially during the illness. The lowest values were found after 8 days. Concomitantly, a reducation in the plasma concentration of total and free cholesterol and cholesteryl esters was demonstrated. The rate of cholesterol esterification correlated significantly with the concentration of prealbumin, alpha-lipoprotein, and albumin. Seven weeks after onset of the infarction, the LCAT values were equal to those in a reference group. The results suggest that the synthesis of LCAT was decreased during the acute-phase reaction.

Acute Disease↗