Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0031154 (peritonitis)
 15,372 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

TNF is considered one of the inflammatory cytokines and contributes mainly to the generation of anemia of chronic disease (ACD). In nude mice TNF has been reported to impair iron metabolism and erythropoiesis, leading to anemia with a low serum iron and preserved iron stores. In this work, we established a murine model for ACD based on sublethal cecal ligation and puncture (CLP) with ensuing protracted peritonitis. Starting on Day 3 after CLP, a severe protracted depression of erythropoiesis in the bone marrow was noted. Two weeks after CLP, we observed a moderate normochromic anemia, low serum iron concentration, and preserved iron stores consistent with transient ACD. To determine whether TNF contributes to the development of ACD in vivo, we neutralized TNF after CLP shortly before and during the phase of most severe bone marrow depression to prevent anemia. Additionally, we studied TNF-deficient mice undergoing CLP. Two weeks after CLP, we determined red blood count, hemoglobin concentration, hematocrit, serum iron concentration, and iron stores in spleens of wild-type mice, TNF-deficient mice, and mice after neutralization of TNF. Neutralization of TNF after CLP could not prevent mice from contracting anemia. Accordingly, TNF-deficient mice developed anemia to the same extent as wild-type mice. Serum iron concentration was lowered and iron stores were overloaded in both TNF-deficient and wild-type mice after CLP. Our results clearly demonstrate that TNF is not a mediator of ACD in our model with transient anemia induced by protracted septic peritonitis.
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PMID:TNF-independent development of transient anemia of chronic disease in a mouse model of protracted septic peritonitis. 1469 Dec 92

Intestinal parasites cause significant morbidity and mortality. Diseases caused by Enterobius vermicularis, Giardia lamblia, Ancylostoma duodenale, Necator americanus, and Entamoeba histolytica occur in the United States. E. vermicularis, or pinworm, causes irritation and sleep disturbances. Diagnosis can be made using the "cellophane tape test." Treatment includes mebendazole and household sanitation. Giardia causes nausea, vomiting, malabsorption, diarrhea, and weight loss. Stool ova and parasite studies are diagnostic. Treatment includes metronidazole. Sewage treatment, proper handwashing, and consumption of bottled water can be preventive. A. duodenale and N. americanus are hookworms that cause blood loss, anemia, pica, and wasting. Finding eggs in the feces is diagnostic. Treatments include albendazole, mebendazole, pyrantel pamoate, iron supplementation, and blood transfusion. Preventive measures include wearing shoes and treating sewage. E. histolytica can cause intestinal ulcerations, bloody diarrhea, weight loss, fever, gastrointestinal obstruction, and peritonitis. Amebas can cause abscesses in the liver that may rupture into the pleural space, peritoneum, or pericardium. Stool and serologic assays, biopsy, barium studies, and liver imaging have diagnostic merit. Therapy includes luminal and tissue amebicides to attack both life-cycle stages. Metronidazole, chloroquine, and aspiration are treatments for liver abscess. Careful sanitation and use of peeled foods and bottled water are preventive.
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PMID:Common intestinal parasites. 1502 17

The inflammatory process is associated with alterations in iron metabolism. Transferrin, an acute-phase N-glycosylated glycoprotein, plays an important role in iron transport. Human serum transferrin contains two biantennary glycans, each consisting of 0 to 4 molecules of sialic acid (SA); its SA content is heterogeneous with high concentration of tetrasialotransferrin (4SA) and low amounts of disialo-, trisialo-, penta-, and hexasialotransferrin. The hepatic uptake of iron is greater for desialylated transferrin isoforms (disialotransferrin) than for the other forms. We hypothesized that serum levels of carbohydrate-deficient transferrin (CDT, disialotransferrin) may increase rapidly in septic patients. Blood samples were obtained from critically ill patients with (n = 15) and without (n = 14) documented sepsis and compared with healthy volunteers. The different forms of transferrin were studied by capillary zone electrophoresis; SA concentrations were measured by enzymatic colorimetric assay. There was a significant increase in the proportion of CDT in septic compared with nonseptic patients and volunteers (18.3% [1.3-30.5] vs. 0.7% [0.5-0.9]; P < 0.01 and 0.9% [0.5-1.1]; P < 0.05). Conversely, tri- and tetrasialotransferrin levels were lower in septic patients. Total and free SA concentrations were significantly higher in septic patients than in healthy volunteers. In a sheep model of septic shock secondary to peritonitis, serum free SA was already increased after 15 h. Sepsis is associated with decreased SA content on circulating transferrin and with an increase in blood free SA concentrations. In view of these rapid modifications and the long half-life of transferrin, the most likely explanation is degradation of transferrin by neuraminidase. Further studies including measurement of blood neuraminidase concentration and activity are needed to understand the process and exact role of SA decrease in septic patients.
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PMID:Rapid alterations in transferrin sialylation during sepsis. 1598 20

Interferon-gamma (IFN-gamma) is considered one of the main inflammatory cytokines contributing to the generation of anemia of chronic disease (ACD). In this study, we used a previously described murine model for ACD based on sublethal cecal ligation and puncture (CLP) with ensuing protracted peritonitis. Within 2 weeks after CLP, a moderate normochromic anemia with low serum iron concentration and preserved iron stores develops, which is consistent with ACD. In order to determine whether IFN-gamma contributes to the development of ACD in vivo, we neutralized IFN-gamma after CLP shortly before and during the phase of most severe bone marrow depression in order to prevent anemia. Additionally, we studied IFN-gamma receptor-deficient mice that underwent CLP. Two weeks after CLP, we determined the red blood cell count, hemoglobin concentration, hematocrit, serum iron concentration, and iron stores in spleens of wild-type mice, IFN-gamma receptor-deficient mice, and mice after neutralization of IFN-gamma. Neutralization of IFN-gamma after CLP could not prevent mice from becoming anemic. Accordingly, IFN-gamma receptor-deficient mice developed anemia to the same extent as wild-type mice. Serum iron concentration was lowered both in IFN-gamma receptor-deficient and wild-type mice. Iron stores in untreated IFN-gamma receptor-deficient mice were elevated compared to untreated wild-type mice. After CLP both IFN-gamma receptor-deficient and wild-type mice had equally overloaded iron stores. Additional neutralization of TNF in IFN-gamma receptor-deficient mice also did not attenuate CLP-induced anemia. Our results clearly demonstrate that neither IFN-gamma alone nor in combination with TNF is a mediator of ACD in our model with transient anemia induced by protracted septic peritonitis.
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PMID:Failure of interferon-gamma and tumor necrosis factor in mediating anemia of chronic disease in a mouse model of protracted septic peritonitis. 1614 16

Intravenous iron supplementation is commonly used in uremic patients treated with peritoneal dialysis. Infusion of iron compounds results in various systemic noxious effects, mainly because of its prooxidant and proinflammatory actions. The authors studied how the intravenous infusion of iron sucrose (IS) affects intraperitoneal homeostasis in rats undergoing acute peritoneal dialysis. Experiments were performed on Wistar rats, which were infused intravenously with IS in a dose 10 mg/kg body weight or with normal saline in the controls. Simultaneously, 4-hour acute peritoneal dialysis was started. At the end of the dialysis, systemic and peritoneal inflammatory reaction and peritoneal permeability were evaluated. Compared with controls, rats exposed to IS showed increased dialysate iron concentration by +70%, P<0.001, and in the differential cell count, more eosinophils (+113%, P<0.05) and fewer macrophages (-16%, P<0.05) existed. In in vitro conditions, macrophages obtained from IS-treated rats released more tumor necrosis factor-alpha (TNF-alpha; +173%, P<0.05) upon stimulation with endotoxin. Additionally increased (+73%, P<0.01) dialysate elastase activity was found in IS-treated animals. Rats infused with IS demonstrated increased peritoneal permeability to total protein (+60%, P<0.001) as compared with control animals. When rats with simultaneous peritonitis received intravenous IS, ex vivo isolated peritoneal leukocytes generated more free radicals (+73%, P<0.05) than did cells harvested from control animals. It has been concluded that intravenous infusion of IS affects the intraperitoneal homeostasis in rats, moving it toward the inflammatory state. These changes may contribute to peritoneal damage.
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PMID:Peritoneal effects of intravenous iron sucrose administration in rats. 1754 48

Chronic kidney disease is prevalent in Indonesia, running at 29.1% in the population at risk (hypertension, diabetes, and proteinuria). In a recent survey, the incidence rate for end-stage renal disease (ESRD) was 30.7 per million population (pmp), and the prevalence rate was 23.4 pmp. In 2006, about 10,000 patients were being treated with hemodialysis. Nevertheless, many ESRD patients remained untreated. Financial problems, scarcity of dialysis facilities, and insufficient numbers of skilled health care providers were among reasons why renal replacement treatment is not so well developed in Indonesia. The continuous ambulatory peritoneal dialysis (CAPD) program begun in 1985 was slowly growing until an economic crisis in 1998. Afterward, with new development of CAPD and government support, the number of patients on CAPD increased. In the middle of 2007, CAPD patients numbered 774 in total. Drop-out rates remained high, because of death, infection, and catheter failure. Almost all new CAPD patients are older than 35 years of age, and the technique is still costly: 51% of patients receive 4 daily exchanges, costing $6,000 annually; the rest receive 3 daily exchanges, costing $4,800 annually. Government insurance reimburses only 3 exchanges. Expensive drugs such as erythropoietin, intravenous iron, and vitamin D(3) are not covered by insurance. The infection rate for the most recent year was 1 episode in 47.17 patient-months. The cost of antibiotic treatment to cure peritonitis is still expensive. Many patients experience some complication related to catheter obstruction or hemorrhage. In Indonesia, CAPD is relatively new and just beginning to progress. In our archipelago, with its many islands and limited resources and investment, CAPD may be the better choice of therapy. More training is needed to increase the number of skilled and experienced doctors, nurses, and other CAPD team members. We hope that CAPD can be made more affordable for ESRD patients.
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PMID:The development of a continuous ambulatory peritoneal dialysis program in Indonesia. 1855 66

Trichobezoars are intraluminal accretions of ingested hair. The Rapunzel syndrome is a rare form of gastric trichobezoar, with extension into the small bowel, and may be complicated by obstruction, perforation or peritonitis. The majority of reported cases are from Asian countries. We describe the second case from England who, like the earlier report, is also a 14-year old Asian girl who presented with small bowel obstruction. The pathology was missed 2 years previously when she presented with slim stature, iron-deficiency anaemia and frontal alopecia. This report highlights the need for a higher index of suspicion, particularly in Asian girls to avoid missing the diagnosis and early elective intervention.
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PMID:The Rapunzel syndrome: is it an Asian problem? (case report and review of literature). 1932 1

We have identified the iscR (PA3815) gene encoding an iron-sulfur cluster assembly regulator homologue as one of the genes required for peroxide resistance in Pseudomonas aeruginosa PA14. Here, we present the phenotypic characterization of an iscR deletion mutant in terms of KatA expression, stress responses, and virulence. The iscR null mutant exhibited reduced KatA activity at the posttranslational level, hypersensitivity to hydrogen peroxide, and virulence-attenuation in Drosophila melanogaster and mouse peritonitis models. These phenotypes were fully restored by multi-copy-based expression of katA. These results suggest that the requirement of IscR in P. aeruginosa is related to the proper activity of KatA, which is crucial for peroxide resistance and full virulence of this bacterium.
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PMID:IscR modulates catalase A (KatA) activity, peroxide resistance and full virulence of Pseudomonas aeruginosa PA14. 2007 13

In our study we investigated serum iron levels in the patients with localized or generalized peritonitis. These values were compared in group of 52 patients with acute peritonitis against group of 39 patients without inflammation within peritoneal cavity. The serum iron levels and Total Iron Binding Capacity (TIBC) was indicated in both group. Acute intraabdominal inflammation induced in all patients a state of hypoferremia. However, medium decline of iron level in patients with acute appendicitis or cholecystitis was smaller compare with that observed among the patients with generalized peritonitis caused by perforation of duodenal ulcer, perforation of large bowel diverticula or perforation of small bowel. It has been suggested that decline in iron serum level observed in those patients can be an element of metabolic response to trauma and represents a part of the innate immune system and thus constitutes the first line defence against infection. However, based on presently available knowledge we can not yet finally evaluate the clinical implication of serum iron monitoring in diagnosis and prognosis of the patients with peritonitis.
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PMID:[Serum iron level in the patients with inflammatory abdominal diseases]. 2068 77

During meat inspection, unusual pigmented lesions were found in the abdomens of 411 sheep from a flock raised in the Northern Tablelands of New South Wales. In each affected sheep there were multiple discrete, soft, yellow homogeneous plaques beneath the parietal peritoneum and extending into marginating facial planes of the diaphragm and body wall. Microscopically, the lesions consisted of focal granulomatous peritonitis with intracellular acicular refractile golden-brown crystals. Energy dispersive X-ray spectroscopy revealed intralesional barium and selenium, two components of an injectable selenium compound administered to the sheep 6-8 months prior, which contains the yellow pigment, iron oxide. The mechanism of subperitoneal deposition of the compound could not be confirmed, but is presumed to have involved intraperitoneal injection of barium selenate. Meat inspectors and diagnosticians should consider barium selenate injection-site granulomas as a possible explanation for yellow pigmented lesions, especially in livestock from selenium-deficient areas. Animal care providers should be aware that incorrect administration of barium selenate can result in losses from condemnation or downgrading of meat product.
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PMID:An outbreak of granulomatous peritonitis caused by injectable selenium in a flock of Merino sheep. 2159 40


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