GASTRIC AND DUODENAL AMYLOIDOSIS IN AN HIV-INFECTED PATIENT: A CASE REPORT AND A LITERATURE REVIEW.

We report the case of a 38-year-old female with gastrointestinal amyloidosis who presented with acute abdominal pain. The computed tomography scan showed that the patient had generalized lymphadenopathy. This clinical picture with absolute leukocytosis was interpreted as an acute secondary bacterial process of unspecified etiology with generalized lymphadenopathy. The patient was administered a broad-spectrum antibacterial drug and detoxication therapy. The upper endoscopy revealed bleeding of unknown origin. After a 2-day conservative hemostatic therapy, gastric tumor involvement was suggested during control endoscopy. The human immunodeficiency virus (HIV) antibodies were found with the following confirmation of their specificity by immunoblotting. Histopathological study of the biopsy specimens made it possible to diagnose gastrointestinal AA/AL-amyloidosis complicated by gastrointestinal bleeding.

Differences in In Vitro Properties of Pancreatin Preparations for Pancreatic Exocrine Insufficiency as Marketed in Russia and CIS.

BACKGROUND: Pancreatic enzyme-replacement therapy (PERT), provided as pancreatin to patients with pancreatic exocrine insufficiency (PEI), is considered an essential substitute for the pivotal physiological function the pancreas fulfills in digestion. PEI involves a reduction in the synthesis and secretion of pancreatic enzymes (lipase, protease, amylase), which leads to an inadequate enzymatic response to a meal and consequently to maldigestion and malabsorption of nutrients. The efficacy of PERT is strongly dependent on enzyme activity, dissolution, and pancreatin particle size. OBJECTIVE: The physiological properties of eight pancreatin preparations (nine batches; five different brands) available in Russia and CIS (Commonwealth of Independent States: Armenia, Azerbaijan, Belarus, Kazakhstan, Kyrgyzstan, Moldova, Russia, Tajikistan, Uzbekistan) were investigated. METHODS: The lipase activity, dissolution, and particle size distribution of samples from multiple batches of pancreatin of different strengths were measured. RESULTS: Regarding lipase activities, all pancreatin preparations except Micrazim® matched the labeled content. Considerable differences were observed in particle size and dissolution. CONCLUSION: Pancreatin preparations available in Russia and CIS demonstrate product-to-product and batch-to-batch variability regarding the measured properties of lipase activity, dissolution, and particle size. This may impact the efficacy of PERT and therefore clinical outcomes.

Clinical observation of macroamylasemia in splenosis due to the posttraumatic splenectomy.

CONTEXT: Article analyzes current data on macroamylasemia and splenosis, their etiology and diagnostics in particular. CASE REPORT: Authors presented their own clinical observation of a young woman who was diagnosed to have macroamylasemia on the background of splenosis due to the splenectomy after blunt abdominal injury. CONCLUSION: This is the first time such a combination of macroamylasemia on the background of splenosis has been described in the literature.

Morphological and functional alterations of small intestine in chronic pancreatitis.

CONTEXT: The small intestine in chronic pancreatitis has not been investigated yet thoroughly. It would be important to understand fat metabolism in the course of this disease and could be explained if the small intestine has some pathological conditions and, due to this reason, pancreatic enzyme substitution does not work in all patients. OBJECTIVE: To investigate the pathophysiology of small intestine in chronic pancreatitis and to show the reason why in some cases pancreatic enzyme substitution does not work properly. PATIENTS: In the process of the study 33 chronic pancreatitis patients have been examined. CONTROLS: The control group includes 30 subjects without chronic pancreatitis similar for age, sex and alcohol consumption to the patients with chronic pancreatitis patients. INVESTIGATIONS: Aspiration biopsy of jejunum mucosa followed by histological examination and investigation of intestinal enzymes by aspiration has been performed. MAIN OUTCOME MEASURES: Metabolism at membranic level has been studied by enzymatic activity of amylase and lipase in the small intestine. Production of enzymes (monoglyceride lipase, lactase, saccharase, maltase, glycyl-l-leucine dipeptidase) promoting metabolism in enterocytes has been estimated as to their activity in homogenates of jejunum mucosa samples. Participation of mucosa in intestinal digestion has been assessed by alkaline phosphatase activity in a secretory chyme from proximal portion of jejunum. Absorptive capacity of jejunum was evaluated by D-xylose test results. DNA, lysozyme, immunoglobulin contents of chyme have also been calculated and bacteriological study of chyme has been also performed. RESULTS: Secondary enteritis, accompanied by moderate dystrophic changes of mucous membrane, thinning of limbus, and decrease of Paneth cell mitotic index, was found to occur in chronic pancreatitis patients. Enteritis is followed by changes in enzymatic processes in the sphere of membrane and intestinal digestion, decrease of absorption, accelerated desquamation of epithelium, fall in local immunity and development of bacterial overgrowth syndrome. CONCLUSIONS: Existence of secondary enteritis and bacterial overgrowth syndrome validates lack of enzyme replacement therapy efficacy in some chronic pancreatitis patients with pancreatic insufficiency. To optimize treatment in such cases it is important to perform small intestine decontamination and escalate enzyme preparation dosage.

Primary sclerosing cholangitis: a clinical case.

The basic hypotheses of pathogenesis of primary sclerosing cholangitis (PSC) are discussed, i.e. genetically conditioned pathology, autoimmune pathology, the result of inflammatory reaction in bile ducts, and cholangiopathy. A clinical case of monozygotic twins with association of PSC and non-specific ulcerative colitis (NUC) is presented. The first twin had a severe course of PSC and a mild course of NUC; he died due to bacterial complications of cholangitis. The second twin, patient B, had an opposite situation, a severe course of NUC, while PSC was suspected only after determination of cholestasis biochemical markers. As soon as cholestasis was revealed, patient B was administered Ursofalk and Budenofalk (in 2001). He received Salofalk as a basic therapy for NUC. Repeated liver biopsy in 2005 showed no progression of PSC, but minimal biochemical signs of cholestasis were present in 2009. It is therefore necessary to study the first-degree relatives of patients with PSC.