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Biomedical subjects

B Messing

Publications and source records attributed to B Messing.

At least 37 records · Page 2Linked to original sources

Liver phospholipidosis induced by parenteral nutrition: histologic, histochemical, and ultrastructural investigations.

Histochemical and electron microscopic examinations of the liver were performed in 5 adults receiving parenteral nutrition for greater than 18 mo and in 4 adults receiving parenteral nutrition for less than 5 mo. Phospholipidosis, reflected by the presence of cytoplasmic phospholipid deposits at histochemical examination and the presence of multilamellar lysosomes at electron microscopy, was marked and present in hepatocytes, Kupffer cells, and portal macrophages in all 5 patients receiving parenteral nutrition for greater than 18 mo. Mild phospholipidosis, affecting only hepatocytes, was demonstrated in 3 of the 4 patients receiving parenteral nutrition for less than 5 mo. These findings indicate that liver phospholipidosis is relatively common in patients receiving parenteral nutrition and that the degree of liver phospholipidosis depends on the duration of parenteral nutrition. Liver phospholipidosis might be due to intrahepatic accumulation of intravenous phospholipids provided by fat-emulsion sources.

Adult

Crohn's disease with respiratory tract involvement.

Symptomatic respiratory tract involvement with granulomatous bronchial lesions has not yet been described in Crohn's disease. We report two patients with colonic Crohn's disease and severe respiratory symptoms (dyspnoea associated in one of the patients with voicelessness); erythema, aphthoid and superficial ulcerations were found in the colon and whitish granulations in the bronchi at endoscopy. Non-caseating tuberculoid granulomas were found in the colonic mucosa of both patients, as well as in the bronchial mucosa of one of them; in the second a diffuse inflammatory infiltrate including epithelioid cells was found underneath an erosion of bronchial epithelium. Both patients improved on oral prednisone. These two patients probably had bronchial involvement by Crohn's disease.

Adolescent

[Evaluation of the use of parenteral nutrition in chronic and severe radiation enterocolitis].

The effects of parenteral nutrition in the treatment of patients with severe chronic radiation enterocolitis is not known. We retrospectively studied 19 adult patients who received parenteral nutrition during 8.6 +/- 2.4 months (mean +/- SEM), including 6 cases in our home-parenteral nutrition-program. Parenteral nutrition was started 49 +/- 12 months after radiation therapy; follow-up after parenteral nutrition was 22 +/- 7 months. Indication for parenteral nutrition was malnutrition (weight = 73 +/- 2 p. 100 of ideal body weight, serum albumin level = 27 +/- 1 g/l) due to multifocal gastrointestinal radiation injuries with stenoses (n = 12), fistulae (n = 3) and short bowel syndrome (n = 4). Parenteral nutrition was given during the peri-operative period in 15 patients. Neither fistulae nor stenoses resolved with parenteral nutrition alone (n = 7) or in association with steroids (n = 5). There was a 57 p. 100 mortality rate (11 patients): 10 p. 100 were postoperative (2 of the 3 patients with fistulae), 21 p. 100, due to radiation complications and 26 p. 100, due to progression of cancer. In those patients with severe and multifocal chronic radiation enteropathy, parenteral nutrition did not influence the lesions in the digestive tract. Nutritional support could, however, be considered as an useful adjunct with a low perioperative mortality rate. In the 14 patients without superimposed unresponsive cancer, parenteral nutrition followed by curative abdominal surgery seemed to be associated with the best prognosis and in 7 of the 8 survivors, parenteral nutrition has been discontinued without reappearance of clinical malnutrition.

Adult

Idiopathic pancreatitis associated with inflammatory bowel disease.

The list of extraintestinal manifestations of inflammatory bowel diseases does not classically include pancreatitis and pancreatic insufficiency. We report here six cases of unexplained pancreatitis associated with inflammatory bowel disease (five patients with Crohn's disease, one with indeterminate colitis). None of the classical etiologies for pancreatitis was found in our patients; moreover none of them had duodenal localization of Crohn's disease or sclerosing cholangitis, two conditions in which pancreatitis associated with inflammatory bowel disease has been previously described. Pancreatitis was painless (or was associated with moderate and atypical abdominal pain) in four of our six cases; no pancreatic calcification was found in any case; in three patients a total or subtotal exocrine pancreatic insufficiency was evidenced. Endoscopic retrograde pancreatography performed in four subjects showed normal or minimally altered pancreatic ducts even in those with severe pancreatic insufficiency. These cases emphasize the existence of a probably nonfortuitous association of inflammatory bowel disease with pancreatitis. Its recognition could make a significant contribution in the management of inflammatory bowel disease.

Adolescent

Diarrhoea and malabsorption in acquired immune deficiency syndrome: a study of four cases with special emphasis on opportunistic protozoan infestations.

Chronic diarrhoea is frequent in acquired immune deficiency syndrome (AIDS) but has been poorly investigated so far. We report four patients with AIDS in whom diarrhoea and malabsorption were outstanding features, and who underwent extensive digestive investigations. Diarrhoea was a presenting symptom in all subjects and was of secretory type in three of them. D-xylose and vitamin B12 were malabsorbed in all cases; steatorrhea was found in the two patients who could ingest significant amounts of fat. Faecal alpha 1-antitrypsin clearance was increased in all subjects. Search for digestive pathogens showed unusual protozoans in all patients: in case 1, optical and electron microscopy revealed the presence in the cytoplasm of villous enterocytes of Microsporidia protozoans still unreported in AIDS. Stool and jejunal fluid examination showed Isospora belli in case 2 and Cryptosporidium in cases 3 and 4. On histological and ultrastructural study the former was localised in the cytoplasm of a few enterocytes and the latter was scattered throughout the villus and crypt brush border. Otherwise small intestinal histology only showed minor non-specific changes and the enterocytes were ultrastructurally normal. In patient 3 the slow marker intestinal perfusion technique showed a profuse fluid secretion in the duodenum and proximal jejunum. All patients needed prolonged total parenteral nutrition. Cryptosporidium and Microsporidia could not be eradicated despite multiple drug trials. Isospora belli was transiently cured by pyrimethamine-sulphadiazine. Only patient 2 is presently at home, and patients 1, 3, and 4 died after two, six, and nine months of total parenteral nutrition, respectively.

Acquired Immunodeficiency Syndrome

Multifactorial low remodeling bone disease during cyclic total parenteral nutrition.

The physiopathology of metabolic bone disease described during long term total parenteral nutrition is poorly understood. We therefore prospectively assessed bone status of seven adult patients [mean age, 42 +/- 16 (SD) yr] treated with cyclic total parenteral nutrition for a period of 7 +/- 2 (SD) months. All patients had hypercalciuria (381 +/- 96 mg/day) associated with negative calcium balance in six of seven patients (-49 +/- 120 mg/day). A correlation was found (r = +0.74, P less than 0.01) between protein intake and calciuria. Two patients developed slight transient hypercalcemia. Serum magnesium and phosphate levels remained within the normal range. A high aluminum load due to the added phosphate solution (253 +/- 84 micrograms/day) was associated with increased serum aluminum levels (52 +/- 38 micrograms/liter). Normal serum levels of 25 hydroxyvitamin D (12 +/- 7 ng/ml) and low normal 1,25 dihydroxyvitamin D levels (21 +/- 8 pg/ml) were found. Serum PTH was normal in five and increased in two of the seven patients. However, in these two patients skeletal unresponsiveness to the action of PTH was found. A new histomorphometric picture of bone was observed; it consisted of a markedly reduced bone formation with subnormal osteoclastic activity leading to a low trabecular bone volume. No osteomalacia was found. The aluminum load may have played a role in these bone defects. The hypercalciuria with negative calcium balance was attributed to the cyclic amino-acid delivery during TPN.

Adult

Acquired immunodeficiency with intestinal cryptosporidiosis: possible transmission by Haitian whole blood.

A 31-year-old Frenchman had an acquired immunodeficiency syndrome (AIDS) with profound depression of cellular immunity and relative sparing of humoral immunity. The clinical picture included intractable secretory diarrhoea, vomiting, abdominal pain, and weight loss. Gastrointestinal cryptosporidiosis was present and a perfusion technique showed profuse secretion of fluid in the proximal small bowel. The patient also had recurrent Salmonella typhimurium septicaemia, cytomegalovirus infection, and cerebral toxoplasmosis and he died within 13 months. This patient did not belong to any of the groups known to be affected by this type of acquired immunodeficiency (homosexuals, drug addicts, haemophiliacs, Haitians) but had been transfused with Haitian blood 4 years before onset of symptoms. This case supports the notion that some forms of AIDS may be transmitted by blood, with a long incubation period.

Acquired Immunodeficiency Syndrome

Does total parenteral nutrition induce gallbladder sludge formation and lithiasis?

To assess the prevalence of sludge formation and lithiasis during total parenteral nutrition, serial biliary ultrasonographic studies were performed during and after i.v. nutrition periods in 23 selected adult gastroenterological patients. All patients were free of hepatobiliary disease before i.v. nutrition. Initial sonograms of 19 patients taken at the 12th day +/- 2 days (mean +/- SEM) of i.v. nutrition were normal. Initial studies for the 4 remaining patients, which were performed on the 39th day +/- 10 days of i.v. therapy (p less than 0.001), showed gallbladder sludge but did not demonstrate lithiasis. Serial ultrasonographic studies indicated that the percentage of sludge-positive patients during parenteral nutrition increased from 6% during the first 3 wk to 50% between the fourth and the sixth weeks and reached 100% in patients receiving i.v. nutritional therapy for greater than 6 wk. Gallstone formation was demonstrated in 6 of 14 sludge-forming patients but was not observed in patients who were sludge-negative. Three of the 6 stone-forming patients underwent cholecystectomy because of complications secondary to cholelithiasis after a mean 43-day course of parenteral nutrition. Analysis of bile from these patients revealed thick bile-containing cholesterol crystals and small stones of mixed bilirubin-cholesterol type. Ultrasonographic studies were obtained for sludge-positive patients after the parenteral nutrition period. Sludge positivity decreased from 88% during the first 3 wk of oral refeeding to 0% by the end of the fourth week. This study, therefore, strongly suggests that bowel rest and bile stasis during parenteral nutrition lead to production of sludge, which can result in eventual gallstone formation. Consequently, during parenteral nutrition exceeding 1 mo, gallbladder stasis should be palliated to prevent cholelithiasis formation.

Adolescent

[Endogenous steatorrhea during total parenteral nutrition. Study of 22 patients with gastrointestinal diseases].

Endogenous steatorrhea has only been evaluated in patients with non-pathological digestive tract. We decided, therefore, to study this parameter in 22 consecutive patients submitted to total parenteral nutrition for severe gastrointestinal diseases. The determination of steatorrhea, creatorrhea, and fecal clearance of alpha 1-antitrypsin was performed by three days stool collections. After 10 days of parenteral nutrition, 13 of the 22 patients still had measurable stool losses and 106 fecal collections were done. In these 13 patients, fecal weight was 610 +/- 130 g.d-1, (mean +/- SEM), steatorrhea was: 3.1 +/- 0.4 g.d-1, creatorrhea was: 1.7 +/- 0.6 g.d-1, alpha 1-antitrypsin clearance was: 58 +/- 13 ml.d-1 (N less than 10 ml.d-1). The mean endogenous steatorrhea was therefore 5 fold larger than normal and creatorrhea 1.8 fold larger than normal. This discrepancy could be due to metabolism of nutrients by colonic bacterial flora. The comparison of patients with and without increased endogenous losses showed significant differences in the mean number of intestinal lesions (1.4 +/- 0.3 versus 0.5 +/- 0.2) and in the presence or absence of ileal involvement (p less than 0.05). A positive correlation was found between steatorrhea and stool weight but not between steatorrhea and creatorrhea or fecal clearance of alpha 1-antitrypsin. This first study of pathological endogenous steatorrhea does not suggest a relationship of this parameter with protein losing enteropathy. The main contribution to increased endogenous losses may be related to increased epithelial cell renewal of the intestine associated with malabsorption. The role of bacterial overgrowth in the gut cannot be ruled out by the present data.

Celiac Disease