Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:3.1.1.8 (cholinesterase)
 12,691 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The authors study 14 different analytical parameters in the pleural fluid in order to recognize differential biological criteria, helping to establish an etiologic diagnosis in patients with suggestive clinical symptoms and biological data of an infectious process. In a group of 38 patients with bacterial exudative pleural effusion (22 of tuberculous origin and 16 secondary to non-specific bacterial infection), the following parameters were analyzed: total proteins, acid glucoprotein, X1, antytripsin, CDH, acid phosphatase, amylase, cholinest, copper, iron, pCO2, pO2 pH, glucose, and cholesterol. The results of amylase, copper, pCO2, pO2 and pH determinations in the pleural fluid show statistical significant differences between the tuberculous cases and the patients with non-specific infections. Lastly, the authors mention the minimal biological criteria necessary to confirm the tuberculous or non-specific bacterial etiology of a pleural fluid, stressing the value of the levels of cholinesterase, copper, pO2 and pH as differential data.
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PMID:[Tuberculous pleural effusion and pleural effusion secondary to non-specific bacterial infection: biochemical differential diagnosis (author's transl)]. 736 79

To evaluate the cause of the vulnerability to infections in the elderly, the ability of neutrophil to generate reactive oxygen species was assessed by a luminol-dependent chemiluminescence (CL) assay after stimulation with non-opsonized zymosan, Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumoniae, Candida albicans and lumispheres in elderly patients aged 70 to 93 years. The integrated CL for 20 minutes of whole blood and neutrophils induced by zymosan in the elderly was significantly lower than that in healthy young adults, and the integrated CL of neutrophils induced by lumispheres was also significantly lower in the elderly aged 80 years and over. When bacterial infection occurred in the elderly, the levels of CL were elevated and decreased in the convalescence. This response is proper for host-defense mechanism against infection. However, whole blood CL response was not fully activated in any patients of the elderly during bacterial infection. In these cases lower white blood cell counts, lower neutrophil counts, or the decreased level of the serum total protein, albumin, total cholesterol or cholinesterase were observed. Relationship between malnutrition and the ability of neutrophil to generate reactive oxygen species was suggested. Furthermore, I evaluated the priming effect of lipopolysaccharide (LPS) and tumor necrosis factor-alpha (TNF-alpha) on whole blood CL. The CL responses stimulated with non-opsonized zymosan or P. aeruginosa were enhanced by pretreatment with TNF-alpha and LPS in healthy young adults. On the other hand, no significant priming effect was observed when blood from elderly patients were incubated with each primer. These findings suggest that the impairment in the generation of reactive oxygen species of the neutrophils and the decrease in reactivity to LPS and TNF-alpha that activate neutrophils at the site of infection and potentiate host defense against invading bacteria, may contribute to susceptibility to infection in the elderly.
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PMID:[Study of neutrophil dysfunctions in the elderly using a chemiluminescence method]. 782 5

Endometritis is an inflammation of the endometrium associated with bacterial infection. The pathogenesis of endometritis in cows is still not completely understood. The combined analysis of the markers of inflammation and oxidative stress has contributed to a better understanding of disease mechanisms, but is still unexplored in uterine disorders. Moreover, research provides evidence about an important role of the vagus nerve in regulating the innate immune function through the cholinergic anti-inflammatory pathway in response to bacterial infections. This new pathway has demonstrated a critical role in controlling the inflammatory system. The aim of this study was to evaluate the activity of cholinesterase in total blood, lymphocytes, and serum of dairy cows with clinical and subclinical endometritis. Sixty-one Holstein cows, between 30 and 45 days in milk, were classified into 3 groups of animals: presenting clinical endometritis (n = 22), subclinical endometritis (n = 17), and healthy (n = 22). Mean leukocyte counts did not differ among groups, but the neutrophil number was significantly higher in cows with clinical endometritis than those in healthy animals. Also, serum concentration of interleukin-1beta (pg/mL) was significantly higher in cows with endometritis. The activity of acetylcholinesterase in blood and lymphocytes increased in both groups with endometritis. Animals with endometritis presented an increase in lipid peroxidation, but the antioxidant enzyme activity (catalase levels) was higher in endometritis groups than in normal cows. In conclusion, the inflammatory process of clinical and subclinical endometritis leads to systemic lipid peroxidation despite the compensatory increase of the antioxidant enzyme. These data also provide evidence of an important role of the cholinergic pathway in regulating dairy cows with clinical and subclinical endometritis.
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PMID:Bovine Endometritis and the Inflammatory Peripheral Cholinergic System. 3173 79