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Query: UMLS:C0036690 (sepsis)
 59,461 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The frequency, the treatment and the mortality of stress induced ulcers and erosions of the upper alimentary tract are surveyed. The experimental data concerning such ulcers and erosions are reported. Most important is the local mucosal ischaemia with a concomitant reabsorption of H-ions. Intravasal coagulation processes and a local diminution of the Vitamin A content may be additional factors. 37 stress induced bleedings observed in 460 patients of a surgical intensive care unit are analysed. The mortality of the conservatively treated group was 60% and higher than the mortality after operative treatment (42%). The high mortality was due to the associated states of shock, hypoxaemia and sepsis. A prospective study comporting 50 patients of a medical intensive care unit shows the little importance of intravasal coagulation for gastrointestinal bleedings during septicaemia. The possible influence of psychological factors for the induction of stress induced bleedings was analysed on 112 tetraplegics and paraplegics, all under the same conservative treatment comporting high doses of Dexamethason. The frequency of gastrointestinal bleedings was very high in complete traumatic tetraplegia (41%), smaller in complete traumatic paraplegia (16%), much lower in incomplete traumatic and complete non-traumatic lesions.
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PMID:[Stress ulcer: clinical aspects, pathogenesis, diagnosis and therapy]. 0 82

Vitamin A may play a role systemically and locally in controlling intra-abdominal sepsis. Adult male rats were divided into three groups. Group 1 ate a standard rat laboratory chow (not vitamin A deficient), group 2 ate the same chow supplemented with vitamin A, and group 3 ate the chow supplemented with beta carotene. All animals underwent cecal ligation, and the cecum was perforated either with a 27-gauge or an 18-gauge needle. Vitamin A dietary supplementation had a significant protective effect, which was manifested by improved survival in the animals whose cecum was perforated with an 18-gauge needle, prevention of postoperative hypothermia, maintenance of peripheral WBC counts at normal or above-normal values, and better localization of the intra-abdominal inflammatory process. Dietary supplementation with beta carotene had a lesser protective effect.
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PMID:Effects of vitamin A and beta carotene on intra-abdominal sepsis. 669 12

A prospective nutritional evaluation of 84 unselected patients admitted to a multidisciplinary ICU was performed using anthropometric measurements, creatinine height index (CHI), and serum protein assays. All values tested were significantly lower than those of 40 healthy controls. A matrix of correlation coefficients showed many similarities among the variables studied. Fatal outcome and poor prognosis indices, such as sepsis and renal failure, were analyzed separately. Anthropometric measurements and CHI were not different in the separate groups. Albumin (Alb) and transferrin (Tr) were not different in patients with or without sepsis. Retinol binding prealbumin was significantly higher in patients with renal failure. Thyroxin-binding prealbumin (TBPA) was significantly lower in all the groups. We emphasize the interest of this rapid turnover protein in evaluating nutritional status. We suggest: (1) a systematic nutritional assessment, and (2) an aggressive nutritional support in the ICU patient.
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PMID:Nutritional status in intensive care patients: evaluation in 84 unselected patients. 682 85

Acute infections of childhood are associated with an increased of xerophthalmia, apparently due to depletion of vitamin A stores. The mechanism responsible for this is not known. Recently, it has been reported that severe infections in adult patients (ie, sepsis and pneumonia) result in excretion of large quantities of retinol in the urine. In 44 children hospitalized for treatment of acute diarrhea we found mean urinary excretions of 1.44 mumol retinol/24 h on day 1 of hospitalization, 0.62 mumol retinol/24 h on day 2, and 0.23 mumol/24 h on day 3. Healthy control subjects matched for age did not excrete measurable amounts of retinol in the urine. Retinol excretion was associated strongly with rotavirus diarrhea and presence of fever. Furthermore, serum retinol concentration was negatively associated with duration of diarrhea before hospitalization, suggesting that urinary excretion of retinol may be an important contributor to vitamin A depletion.
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PMID:Urinary excretion of retinol in children with acute diarrhea. 776 30

In order to verify whether rat hepatocytes are capable of producing leukotrienes, Percoll density gradient centrifugation to fractionize rat hepatocytes and a radioimmunoassay of leukotrienes in the reacting solution have been performed. Also, investigated was effect of retinol (Vitamin A) on inducing the production of leukotrienes in rat Kupffer cells and hepatocytes. Incubation with endotoxin (10 micrograms/ml) for 30-60 minutes induced the production of leukotrienes in rat Kupffer cells but did not induce any such production in rat hepatocytes. On the other hand, arachidonic acid (2-20 microM) or linoleic acid (10-50 microns) did induce hepatocytes to produce leukotrienes in a dose-dependent manner. Fifteen minutes of pre-incubation with 10(-8) M of retinol inhibited an endotoxic induction of leukotrienes production in rat Kupffer cells, whereas it did not inhibit an arachidonic acid induction in rat hepatocytes. Based on these results, we have concluded that a hepatic tissue injury during sepsis is probably mediated by leukotrienes produced by the Kupffer cells and its inhibition is the mechanism of tissue protective effect of retinol. However, in further severe state even the hepatocytes may produce leukotrienes and as a consequence, a widespread destruction of hepatic tissue will occur.
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PMID:[Production of leukotrienes in rat Kupffer cells and hepatocytes by various inducers]. 831 99

Bronchopulmonary dysplasia (BPD) is a common complication of premature birth and is associated with significant morbidity. Vitamin A supplementation has been suggested as a potential preventative measure against BPD due to its role in lung maturation and because preterm infants are particularly predisposed to vitamin A deficiency. The aim of this review was to determine whether vitamin A supplementation reduces BPD risk among preterm infants. PubMed, CINAHL, and Web of Science databases were searched with the keywords "bronchopulmonary dysplasia," "vitamin A," and "preterm infants" and with the time frame of 2006-2016, and 4 studies were selected for review per the inclusion criteria. Only 1 study found a significant reduction in BPD risk associated with vitamin A supplementation; however, 2 studies indicated a nonsignificant benefit and may have been underpowered to show statistical significance. One study revealed an increased risk of sepsis associated with vitamin A supplementation (for infants weighing >1000 g at birth), but no risk was seen with vitamin A supplementation in the other studies. Because intramuscular vitamin A has shown benefit with minimal risk, continued supplementation for preterm infants is warranted. Future studies aimed at assessing infant groups that are most likely to benefit from supplementation (based on birth weight or other conditions), as well as determining the optimal dosing while minimizing injections, would be beneficial.
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PMID:Vitamin A Supplementation for the Prevention of Bronchopulmonary Dysplasia in Preterm Infants: An Update. 2853 11

Background: Suboptimal nutritional status of a newborn is a risk factor for short- and long-term morbidity and mortality. The objectives of this review were to assess the efficacy and effectiveness of neonatal synthetic vitamin A supplementation, dextrose gel and probiotic supplementation for prevention of morbidity and mortality during infancy in low and middle-income countries. Methods: We included randomized trials. Primary outcome was all-cause mortality. We conducted electronic searches on multiple databases. Data were meta-analyzed to obtain relative risk (RR) and 95% confidence interval (CI). Studies for vitamin A and Probiotics were analyzed separately. No studies were found for dextrose gel supplementation during neonatal period. The overall rating of evidence was determined by Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach. Results: Sixteen studies assessed the effect of vitamin A supplementation during the neonatal period. Based on pooled data from community-based studies only, there was no significant effect of vitamin A on all-cause mortality at age 1 month (RR 0.99, 95% CI 0.90, 1.08), 6 months (RR 0.98; 95% CI 0.89-1.08) and 12 months (RR 1.04, 95% CI 0.94, 1.14) but increased risk of bulging fontanelle (RR 1.53, 95% CI 1.12, 2.09). The overall quality of evidence was high for the above outcomes. Thirty-three studies assessed the effect of probiotic supplementation during the neonatal period and were mostly conducted in the hospital setting. Probiotics reduced the risk of all-cause mortality (RR 0.80, 95% CI 0.66, 0.96), necrotizing enterocolitis (RR 0.46, 95% CI 0.35, 0.59) and neonatal sepsis (RR 0.78, 95% CI 0.70, 0.86). The grade ratings for the above three outcomes were high. Conclusions: Vitamin A supplementation during the neonatal period does not reduce all-cause neonatal or infant mortality in low and middle-income countries in the community setting. Probiotic supplementation during the neonatal period seems to reduce all-cause mortality, NEC, and sepsis in babies born low birth weight and/or preterm in the hospital setting.
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PMID:Effect of Synthetic Vitamin A and Probiotics Supplementation for Prevention of Morbidity and Mortality during the Neonatal Period. A Systematic Review and Meta-Analysis of Studies from Low- and Middle-Income Countries. 3219 65