Correlation between Neopterin, Biopterin and Nitrite/Nitrate in Cerebrospinal Fluid in Child Patients with Neurological Diseases

Pteridines ◽  
2003 ◽  
Vol 14 (1) ◽  
pp. 5-8
Author(s):  
Yasuhiko Kawakami ◽  
Mayuko Sakamoto ◽  
Ken-ichi Shimada ◽  
Eiji Noguchi ◽  
Kentaro Kuwabara ◽  
...  

Abstract Cerebrospinal fluid (CSF) neopterin been previously reported in various diseases. In this study CSF neopterin, biopterin, and nitrite/nitrate (NOx) Contents were measured and the correlation between them in child patients with various kinds of neurological diseases were investigated. Changes in the CSF neopterin levels in patients with bacterial meningitis were similar to those previously reported for those with bacterial meningitis; on the 2th hospital day they were significantly higher than on admission, and on the 6th hospital day they were tapered. The CSF biopterin levels and CSF NOx content in patients with bacterial meningitis on admission were significantly higher than those with other categories and were decreased gradually. Although patients with high levels of CSF neopterin tended to have high CSF biopterin levels in any categories, there was no significant correlation between CSF neopterin and biopterin levels. The CSF biopterin and NOx levels in patients with convulsions were higher than those with aseptic meningitis. Since the neuro-protective or anticonvulsant role for NO was previously reported, high CSF biopterin and NOx levels in patients having epilepsy or febrile convulsions may be regarded as one of the endogenous mechanisms for recovery from an overexcitatory brain in patients with convulsive diseases.

Pteridines ◽  
1999 ◽  
Vol 10 (1) ◽  
pp. 27-31
Author(s):  
Yasuhiko Kawakami ◽  
Yoshitaka Fukunaga ◽  
Kentaro Kuwabara ◽  
Takehisa Fujita ◽  
Osamu Fujino ◽  
...  

Cerebrospinal fluid (CSF) neopterin levels were measured in child patients with neurological diseases. CSF neopterin levels on admission were significantly higher in patients with bacterial meningitis than in those with aseptic meningitis or in those with non-pleocytotic CSF. CSF neopterin levels in patients with bacterial meningitis one day after admission were higher than those on admission and were markedly elevated with high levels of CSF IFN-γ and TNF-α. CSF neopterin levels in patients with bacterial meningitis one day after admission were related to the period of positive serum C-reactive protein. In patients with non-pleocytotic CSF, CSF neopterin and CSF IFN-y levels were higher in patients with febrile convulsion (FC) than in those with pyrexia only or convulsion (including epilepsy) only. These results suggest that elevation of CSF neopterin in bacterial meningitis results from monocytes/ macrophages costimulated with IFN-γ and TNF-α and that immunological activation in the central nervous system is one of the mechanisms of onset with FC.


2017 ◽  
Vol 15 (2) ◽  
pp. 167-172 ◽  
Author(s):  
Frederico Ribeiro Pires ◽  
Andréia Christine Bonotto Farias Franco ◽  
Alfredo Elias Gilio ◽  
Eduardo Juan Troster

ABSTRACT Objective To measure the role of enterovirus detection in cerebrospinal fluid compared with the Bacterial Meningitis Score in children with meningitis. Methods A retrospective cohort based on analysis of medical records of pediatric patients diagnosed as meningitis, seen at a private and tertiary hospital in São Paulo, Brazil, between 2011 and 2014. Excluded were patients with critical illness, purpura, ventricular shunt or recent neurosurgery, immunosuppression, concomitant bacterial infection requiring parenteral antibiotic therapy, and those who received antibiotics 72 hours before lumbar puncture. Results The study included 503 patients. Sixty-four patients were excluded and 94 were not submitted to all tests for analysis. Of the remaining 345 patients, 7 were in the Bacterial Meningitis Group and 338 in the Aseptic Meningitis Group. There was no statistical difference between the groups. In the Bacterial Meningitis Score analysis, of the 338 patients with possible aseptic meningitis (negative cultures), 121 of them had one or more points in the Bacterial Meningitis Score, with sensitivity of 100%, specificity of 64.2%, and negative predictive value of 100%. Of the 121 patients with positive Bacterial Meningitis Score, 71% (86 patients) had a positive enterovirus detection in cerebrospinal fluid. Conclusion Enterovirus detection in cerebrospinal fluid was effective to differentiate bacterial from viral meningitis. When the test was analyzed together with the Bacterial Meningitis Score, specificity was higher when compared to Bacterial Meningitis Score alone.


2011 ◽  
Vol 15 (2) ◽  
pp. 156-158 ◽  
Author(s):  
Vitor Laerte Laerte Pinto Junior ◽  
Maria Cristina Rebelo ◽  
Rachel Novaes Gomes ◽  
Edson Fernandes de Assis ◽  
Hugo C Castro-Faria-Neto ◽  
...  

Author(s):  
Zhinous Bayat-Makoo ◽  
Puran Karimi ◽  
Negar Mohtadi

Background: Interleukin 8 increases in various types of meningitis, specifically acute bacterial meningitis inflammation, and it is important in the distinction between types of meningitis. The present paper aims at evaluation of the level of interleukin 8 in cerebrospinal fluid in acute adult bacterial meningitis. Methods: All adult patients’ with diagnosis of suspected meningitis with symptoms of fever, headache, neck stiffness, and consciousness disorder. Lumbar puncture was taken in between the third and fourth vertebra by a specialist physician for all patients suspected with meningitis. To determine the level of consciousness, the GCS of the patients was determined and the cerebrospinal fluid was cultured and sent to the laboratory for the analyses of cell count, diffraction, CSF fluid glucose, CSF fluid protein, LDH, or lactate dehydrogenase, and the level of interleukin 8. Results: The mean of IL-8 protein was 296.17±48.57Pg/ml in patients with aseptic meningitis and 1088.96±526.55Pg/ml in the group of patients with septic meningitis. There was a significant difference between the two groups in terms of the amount of interleukin 8 (p = 0.009). Cutoff was 297.6 Pg/ml for the detection of positive bacterial meningitis with a sensitivity of 92% and the specificity of 83.1% was 297.6 pg/ml. Conclusion: Interleukin 8 has a high sensitivity and specificity in the diagnosis of bacterial meningitis from aseptic meningitis, and along with the measurement of cerebrospinal fluid protein, it can be a good criterion for differentiation of bacterial from aseptic meningitis.


Pteridines ◽  
2000 ◽  
Vol 11 (4) ◽  
pp. 142-146
Author(s):  
Yasuhiko Kawakami ◽  
Kentaro Kuwabara ◽  
Takehisa Fujita ◽  
Osamu Fujino ◽  
Yoshitaka Fukunaga

Abstract CSF and serum levels of neopterin and several kinds of CSF cytokines were measured in child patients with non-pleocytotic CSF. The CSF neopterin levels with febrile convulsions (FCs) were 27.4±33.0 nmol/1 and the CSF neopterinlserum neopterin ratio (C/S ratio) with FCs was 2.07±2.06. The longer the FCs patients' convulsions lasted, the higher their CSF neopterin levels tended to be come. The CSF neopterin levels with FCs were significantly higher than in those with pyrexia without convulsions (6.5±2.5 nmol/L) or convulsions without pyrexia, including epilepsy (4.9±2.9 nmol/L). The C/S ratio was also higher in patients with FCs than in those with pyrexia without convulsions (0.31±0.17) or convulsions without pyrexia (0.82±0.50).In addition, there was a tendency for CSF IFN-γ levels to be higher in patients with FCs than in those with pyrexia without convulsions or convulsions without pyrexia. However, TNF-α and IL-1α were under measurable levels in cases of non-pi eocytotic CSF. The CSF neopterin levels in patients with exanthem subitum with FCs were higher than in those without FCs. It has been reported that there is a possibility of neopterin production by microglial cells. Our finding that CSF neopterin levels were elevated in patients with FCs, whose CSF had no pleocytosis, are consistent with the possibility of neopterin production by microglia. Our results further suggest that immune activation of microgrial cells is one of the mechanisms involved in the onset of FCs.


2020 ◽  
Author(s):  
Tomohiro Taniguchi ◽  
Sanefumi Tsuha ◽  
Soichi Shiiki ◽  
Masashi Narita

Abstract Background: Gram staining of cerebrospinal fluid (CSF) is widely used in the diagnosis of acute meningitis, but is often conducted in the laboratory, as only some hospitals have access to point-of-care Gram stain (PCGS). The purpose of this study was to demonstrate the clinical impact and utility of PCGS in diagnosing and treating both bacterial and aseptic meningitis in adults. Methods: This was a hospital-based, retrospective observational study at a referral center in Okinawa, Japan. We reviewed the records of all patients aged 15 years or older who were admitted to the Division of Infectious Diseases between 1995 and 2015 and finally diagnosed with bacterial (n=34) or aseptic meningitis (n=97). For bacterial meningitis, we compared the treatments that were actually selected based on PCGS with simulated treatments that would have been based on the Japanese guidelines. For aseptic meningitis, we compared the rates of antibiotic use between real cases where PCGS was available and real cases where it was not. Results: PCGS was the most precise predictor for differentiating between bacterial and aseptic meningitis (sensitivity 91.2%, specificity 98.9%), being superior in this regard to medical histories, vital signs and physical examinations, and laboratory data available in the emergency room. In bacterial meningitis, PCGS reduced the frequency of meropenem use (1/34=3.0%) compared with simulated cases in which PCGS was not available (19/34=55.9%) (p=0.000). In real aseptic meningitis cases, the rate of antibiotic administration was lower when PCGS was used (38/97=39.2%) than when it was not (45/74=60.8%) (p=0.006). Conclusions: PCGS of CSF distinguishes between bacterial and aseptic meningitis more accurately than other predictors available in the ER. Patients are more likely to receive narrower-spectrum antimicrobials when PCGS is used than when it is not. PCGS of CSF thus can potentially suppress the empiric use of antimicrobials for aseptic meningitis.


2008 ◽  
Vol 66 (3b) ◽  
pp. 720-724 ◽  
Author(s):  
Sérgio Monteiro de Almeida ◽  
Dione Sosnitzki da Cunha ◽  
Edna Yamada ◽  
Elvira Missako Doi ◽  
Margaret Ono

Several markers have been studied for their ability to make the CNS infiltration diagnosis earlier and more precise; previous studies showed that CSF ferritin concentrations were higher in patients with malignant invasion of CNS. The objective was to determine the importance of CSF ferritin as a biomarker for the diagnosis of CNS neoplasic infiltration. This study is based on 93 CSF samples, divided into five groups: malignant cells present (n13); malignant cells not present (n26); inflammatory neurological diseases (n16); neurocysticercosis (n20); acute bacterial meningitis (n18). CSF ferritin values were determined by micro particle enzyme immunoassay. CSF ferritin level (mean±SD) in the group with neoplasic cells in the CSF was 42.8±49.7 ng /mL, higher than in the other groups (p<0.0001). We conclude that CSF ferritin with the cut off 20 ng/mL could be an adjuvant biomarker to the diagnosis of CNS malignant infiltration.


2011 ◽  
Vol 15 (2) ◽  
pp. 156-158 ◽  
Author(s):  
Vitor Laerte Laerte Pinto Junior ◽  
Maria Cristina Rebelo ◽  
Rachel Novaes Gomes ◽  
Edson Fernandes de Assis ◽  
Hugo C. Castro-Faria-Neto ◽  
...  

2000 ◽  
Vol 44 (1) ◽  
pp. 73-77 ◽  
Author(s):  
Maria Vittoria Moretti ◽  
Sergio Pauluzzi ◽  
Marina Cesana

ABSTRACT Forty-four patients scheduled for lumbar puncture (LP) were recruited to determine the level of penetration of orally administered rufloxacin into cerebrospinal fluid (CSF). The patients were divided into three clinical groups: those with normal CSF (groups A1d and A7d), those with aseptic meningitis (group B), and those with bacterial meningitis (group C). Members of group A1d received a single 400-mg rufloxacin dose, while group A7d, B, and C constituents had a multiple-dose regimen (one 400-mg dose, followed by one 200-mg dose daily for 6 days). LP was performed on group A1d members 5 h after they had received treatment, while for group A7d it was undertaken 5 h after administration of the last dose. For group B, LP was performed 5 h after the first and the last doses, whereas for group C it was undertaken after the first, fourth, and last doses. Concentrations of rufloxacin in simultaneously collected CSF and plasma samples were determined. Mean CSF/plasma rufloxacin concentration ratios ranged from 0.57 to 0.84, depending on the study group. A higher, but not statistically significant, degree of penetration into CSF was observed in patients with bacterial meningitis than in those with normal CSF or aseptic meningitis. These data indicate that rufloxacin diffuses efficiently into the CSF of patients with either inflamed or uninflamed meninges.


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