Increased interleukin-6 levels in cerebrospinal fluid following subarachnoid hemorrhage

1993 ◽  
Vol 78 (4) ◽  
pp. 562-567 ◽  
Author(s):  
Tiit Mathiesen ◽  
Birger Andersson ◽  
Annika Loftenius ◽  
Hans von Holst
Keyword(s):  
Cerebrospinal Fluid ◽  
Subarachnoid Hemorrhage ◽  
Clinical Course ◽  
Passive Transfer ◽  
Serum Samples ◽  
Content Type ◽  
Soluble Cd8 ◽  
Activation Profile ◽  
The Central Nervous System ◽  
Csf Levels

✓ Serum and cerebrospinal fluid (CSF) samples from 12 patients were analyzed for interleukin (IL)-6, soluble IL-2 receptor (1L-2R), and soluble CD8 levels in order to determine the immune activation profile following subarachnoid hemorrhage (SAH). Dramatically increased levels of IL-6 and moderate increases of soluble IL-2R were detected in the CSF in 11 of the 12 patients; slightly elevated levels of soluble CD8 were observed in six patients. The IL-6 levels were higher on Day 6 than on Days 3 and 9. The increases in IL-6, soluble IL-2R, and soluble CD8 levels in the CSF samples were not paralleled by increased values in the serum samples, and thus probably reflected an intrathecal synthesis of the cytokine. Passive transfer of IL-6 across the blood-brain barrier seemed not to occur since the serum and CSF levels of IL-6 showed a negative correlation. The findings suggest a severe inflammatory affection of the central nervous system that could be of importance in understanding the clinical course in patients following SAH.

Activated complement components C3a and C4a in cerebrospinal fluid and plasma following subarachnoid hemorrhage

1989 ◽  
Vol 71 (5) ◽  
pp. 741-746 ◽  
Author(s):  
Hidetoshi Kasuya ◽  
Takashi Shimizu
Keyword(s):  
Cerebrospinal Fluid ◽  
Subarachnoid Hemorrhage ◽  
Plasma Levels ◽  
Neurological Deficits ◽  
Coagulation System ◽  
Complement Components ◽  
Content Type ◽  
Initial Stage ◽  
Csf Levels ◽  
Serial Measurements

✓ The cerebrospinal fluid (CSF) and plasma levels of the complement components C3a and C4a in 40 patients suffering from subarachnoid hemorrhage (SAH) were quantitated by radioimmunoassay. Serial measurements of the lumbar CSF levels revealed that the C3a and C4a levels were significantly elevated in the initial stage of SAH, but decreased rapidly. Within 48 hours after SAH, the mean C3a and C4a levels in the cisternal, lumbar, and ventricular CSF were significantly higher in patients with delayed ischemic neurological deficits (DIND) than in those without DIND. The serially measured plasma levels of C3a and C4a in patients with DIND were elevated more than in those without DIND, but they did not show a significant change over time. Simultaneous levels of fibrinopeptide A (FPA), an indicator of thrombin activity in CSF, were also measured by radioimmunoassay. There was a significant correlation between CSF-activated complement components and CSF FPA. These results suggest that complement activation occurred in the subarachnoid space soon after SAH, chiefly due to activation of the coagulation system. The higher CSF levels of C3a and C4a in patients with DIND may indicate a relationship between these components and the pathogenesis of cerebral vasospasms.

Carcinoembryonic antigen in cerebrospinal fluid of adult brain-tumor patients

1980 ◽  
Vol 53 (5) ◽  
pp. 627-632 ◽  
Author(s):  
Stephen Hill ◽  
Edward Martin ◽  
E. C. Ellison ◽  
William E. Hunt
Keyword(s):  
Cerebrospinal Fluid ◽  
Carcinoembryonic Antigen ◽  
Adult Brain ◽  
Benign Tumors ◽  
Tumor Patients ◽  
Content Type ◽  
The Central Nervous System ◽  
Csf Levels ◽  
Intradural Metastasis ◽  
Cns Malignancies

✓ Carcinoembryonic antigen (CEA) was measured in plasma and cerebrospinal fluid (CSF) in patients with neoplasms and non-neoplastic neurologic conditions of the central nervous system (CNS). Seventy-two control patients had a mean CEAcsf of 0.04 ng/cu cm, 31 patients with benign tumors had a mean CEAcsf of 0.03 ng/cu cm, and 21 patients with malignant CNS tumors had mean CEAcsf of 21.7 ng/cu cm. In the absence of intradural metastasis, the existence of non-CNS malignancies did not cause CEA to appear in the CSF. There was no relationship between the plasma and CSF levels of CEA. The CSF is normally free of CEA, and its detection is strongly suggestive of either primary or secondary intradural malignancy. The titres of CEA decline with effective therapy, and may be of use in monitoring treated patients for recurrence.

scholarly journals Dehydroepiandrosterone (DHEA) Serum Levels Indicate Cerebrospinal Fluid Levels of DHEA and Estradiol (E2) in Women at Term Pregnancy

2021 ◽  
Author(s):  
Pardes Habib ◽  
Joseph Neulen ◽  
Shahin Habib ◽  
Benjamin Rösing
Keyword(s):  
Pregnant Women ◽  
Strong Correlation ◽  
Serum Levels ◽  
Neuroactive Steroids ◽  
Term Pregnancy ◽  
Serum Samples ◽  
Functional Changes ◽  
The Central Nervous System ◽  
Csf Levels ◽  
Fluid Levels

AbstractNeuroactive steroids such as dehydroepiandrosterone (DHEA), estradiol (E2), and progesterone (P4) are associated with structural and functional changes in the central nervous system (CNS). Measurement of steroid levels in the CNS compartments is restricted in accessibility. Consequently, there is only limited human data on the distributional equilibrium for steroid levels between peripheral and central compartments. While some neuroactive steroids including DHEA and E2 have been reported to convey excitatory and proconvulsant properties, the opposite was demonstrated for P4. We aimed to elucidate the correlation between peripheral and central DHEA, E2, and P4 levels in women at term pregnancy. CSF and serum samples of 27 healthy pregnant women (22–39 years) at term pregnancy were collected simultaneously under combined spinal and epidural anesthesia and used for DHEA ELISA and E2, and P4 ECLIA. All three neuroactive steroids were detected at markedly lower levels in CSF compared to their corresponding serum concentrations (decrease, mean ± SD, 97.66 ± 0.83%). We found a strong correlation for DHEA between its serum and the corresponding CSF levels (r = 0.65, p = 0.003). Serum and CSF levels of E2 (r = 0.31, p = 0.12) appeared not to correlate in the investigated cohort. DHEA serum concentration correlated significantly with E2 (r = 0.58, p = 0.0016) in CSF. In addition, a strong correlation was found between DHEA and E2, both measured in CSF (r = 0.65, p = 0.0002). Peripheral DHEA levels might serve as an indicator for central nervous levels of the neuroactive steroids DHEA and E2 in pregnant women.

scholarly journals Interleukin-6 and granulocyte macrophage-csf in the cerebrospinal fluid from hiv infected subjects with involvement of the central nervous system

1992 ◽  
Vol 50 (2) ◽  
pp. 180-182 ◽  
Author(s):  
O. Perrella ◽  
M. Guerriero ◽  
E. Izzo ◽  
M. Soscia ◽  
P. B. Carrieri
Keyword(s):  
Central Nervous System ◽  
Cerebrospinal Fluid ◽  
Interleukin 6 ◽  
Neurological Diseases ◽  
Aids Dementia Complex ◽  
Gm Csf ◽  
Aids Dementia ◽  
High Incidence ◽  
The Central Nervous System ◽  
Csf Levels

We detected the cytokines interleukin-6 (IL-6) and granulocyte macrophage-CSF (GM-CSF) by ELISA in the CSF and serum of 30 HIV-infected patients classified as AIDS dementia complex (ADC), and 20 subjects with other neurological diseases (OND). We have found a high incidence of detectable IL-6 and GM-CSF in the CSF of ADC patients compared with OND patients. No statistical differences were observed between both groups for serum IL-6 and GM-CSF levels. These results suggest an intrathecal synthesis of these cytokines and a possible involvement in the pathogenesis of ADC.

Cerebrospinal fluid cytology after subarachnoid hemorrhage

1979 ◽  
Vol 51 (3) ◽  
pp. 352-354 ◽  
Author(s):  
Umeo Ito ◽  
Yutaka Inaba
Keyword(s):  
Cerebrospinal Fluid ◽  
Subarachnoid Hemorrhage ◽  
False Negative ◽  
Content Type ◽  
Cerebrospinal Fluid Cytology ◽  
Csf Cells ◽  
Fine Print ◽  
Fluid Cytology

✓ A method is described which has been found capable of detecting subarachnoid hemorrhage (SAH) up to 15 to 17 weeks after its occurrence. The episode of SAH was confirmed by bloody and/or xanthochromic cerebrospinal fluid (CSF) at the time of SAH onset. In this study, 47 samples of lumbar CSF from diagnostically confirmed SAH patients were used. The CSF cells were collected onto slides and stained with May-Gruenwald-Giemsa or Perl's reagent. Iron-positive cells were detected at 1 week, increased by 4 to 6 weeks to 8.5% of total nucleated cells, and decreased to 1% by 15 to 17 weeks. All 27 samples obtained at 2 to 9 weeks after SAH showed iron-positive cells. No iron-positive cells (false-negative samples) were noted in 25% (one of four) of samples obtained during the first week, and in 33% (one of three) of samples obtained 10 to 12 weeks and 15 to 17 weeks after SAH. Of the total samples (37) obtained within 17 weeks after SAH, 8.1% (three of 37) were false negative. No iron-positive cells were detected in samples obtained later than 21 weeks after the SAH episode (10 samples).

Haemophilus influenzae infections of cerebrospinal fluid shunts

1981 ◽  
Vol 54 (2) ◽  
pp. 261-263 ◽  
Author(s):  
Stephen J. Lerman
Keyword(s):  
Cerebrospinal Fluid ◽  
Haemophilus Influenzae ◽  
Clinical Presentation ◽  
Shunt Infection ◽  
Antibiotic Administration ◽  
Cerebrospinal Fluid Shunts ◽  
Content Type ◽  
Systemic Antibiotic Therapy ◽  
The Central Nervous System ◽  
Meningitis In Children

✓ Two (1%) of 165 episodes of Haemophilus influenzae infection of the central nervous system occurred in patients with cerebrospinal fluid shunts. Both cases were caused by strains that could not be typed. The clinical presentation was similar to that of other forms of shunt infection, yet the pathogenesis may be similar to that of H. influenzae meningitis in children without shunts. Systemic antibiotic therapy, without shunt replacement or intraventricular antibiotic administration, may be more successful in shunt infections caused by H. influenzae than in those caused by other organisms.

Free fatty acids in human cerebrospinal fluid following subarachnoid hemorrhage and their potential role in vasospasm: a preliminary observation

2002 ◽  
Vol 97 (2) ◽  
pp. 272-279 ◽  
Author(s):  
Julie G. Pilitsis ◽  
William M. Coplin ◽  
Michael H. O'Regan ◽  
Jody M. Wellwood ◽  
Fernando G. Diaz ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Cerebrospinal Fluid ◽  
Linoleic Acid ◽  
Subarachnoid Hemorrhage ◽  
Palmitic Acid ◽  
Free Fatty Acids ◽  
Potential Role ◽  
The Other ◽  
Content Type ◽  
Fine Print

Object. The mechanisms leading to vasospasm following subarachnoid hemorrhage (SAH) remain unclear. Accumulation in cerebrospinal fluid (CSF) of free fatty acids (FFAs) may play a role in the development of vasospasm; however, in no previous study have concentrations of FFAs in CSF been examined after SAH. Methods. We collected samples of CSF from 20 patients with SAH (18 cases of aneurysmal SAH and two cases of spontaneous cryptogenic SAH) and used a high-performance liquid chromatography assay to determine the FFA concentrations in these samples. We then compared these findings with FFA concentrations in the CSF of control patients. All FFA concentrations measured 24 hours after SAH were significantly greater than control concentrations (p < 0.01 for palmitic acid and < 0.001 for all other FFAs). All measured FFAs remained elevated for the first 48 hours after SAH (p < 0.05 for linoleic acid, p < 0.01 for palmitic acid, and p < 0.001 for the other FFAs). After 7 days, a second elevation in all FFAs was observed (p < 0.05 for linoleic acid, p < 0.01 for palmitic acid, and p < 0.001 for the other FFAs). Samples of CSF collected within 48 hours after SAH from patients in whom angiography and clinical examination confirmed the development of vasospasm after SAH were found to have significantly higher concentrations of arachidonic, linoleic, and palmitic acids than samples collected from patients in whom vasospasm did not develop (p < 0.05). Conclusions. Following SAH, all FFAs are initially elevated. A secondary elevation occurs between 8 and 10 days after SAH. This study provides preliminary evidence of FFA elevation following SAH and of a potential role for FFAs in SAH-induced vasospasm. A prospective study is warranted to determine if CSF concentrations of FFAs are predictive of vasospasm.

Detection of soluble E-selectin, ICAM-1, VCAM-1, and L-selectin in the cerebrospinal fluid of patients after subarachnoid hemorrhage

1998 ◽  
Vol 89 (4) ◽  
pp. 559-567 ◽  
Author(s):  
Richard S. Polin ◽  
Murad Bavbek ◽  
Mark E. Shaffrey ◽  
Kevin Billups ◽  
Christopher A. Bogaev ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Subarachnoid Hemorrhage ◽  
Adhesion Molecules ◽  
Adhesion Molecule ◽  
Content Type ◽  
Vascular Adhesion Molecules ◽  
And Migration ◽  
Vascular Adhesion ◽  
Fine Print

Object. The goal of this study was to explore whether the levels of soluble adhesion molecules were elevated in cerebrospinal fluid (CSF) after subarachnoid hemorrhage (SAH). This association was suggested by the known inflammatory response in vasospasm and the role of vascular adhesion molecules in regulating leukocytic adhesion to, and migration across, vascular endothelium. Methods. A prospective analysis was performed on CSF samples obtained in 17 patients who had suffered a recent aneurysmal SAH and in 16 control patients by using quantitative enzyme-linked immunosorbent assays for E-selectin, intercellular adhesion molecule—1 (ICAM—1), vascular adhesion molecule—1 (VCAM-1), and L-selectin. Levels of soluble forms of E-selectin (p = 0.0013), ICAM-1 (p = 0.0001), and VCAM-1 (p = 0.048) were found to be elevated in the CSF of patients after SAH compared with levels in the CSF of normal controls, patients with unruptured aneurysms, and patients tested months after SAH occurred. In addition, individual patients tested at the time of their initial ictus demonstrated a fall in adhesion molecule levels over time. Levels of E-selectin (p = 0.044) were highest in patients who later developed moderate or severe vasospasm. Conclusions. Adhesion molecules are known to be involved in white cell adherence to the endothelium and subsequent diapedesis and migration in which a role in initiation of tissue damage is postulated. The authors have demonstrated the elevation of three adhesion molecules, with severely elevated levels of E-selectin seen in patients who later develop vasospasm. A correlation with a role of vascular adhesion molecules in the pathogenesis of cerebral vasospasm is suggested.

Value of cerebrospinal fluid cytology for the diagnosis of malignancies in the central nervous system

1978 ◽  
Vol 48 (5) ◽  
pp. 747-753 ◽  
Author(s):  
J. Chris Balhuizen ◽  
Gerard Th. A. M. Bots ◽  
Aart Schaberg ◽  
Fré T. Bosman
Keyword(s):  
Central Nervous System ◽  
Cerebrospinal Fluid ◽  
Nervous System ◽  
Retrospective Analysis ◽  
Content Type ◽  
Secondary Tumors ◽  
Cerebral Tumors ◽  
The Central Nervous System ◽  
Fine Print ◽  
Fluid Cytology

✓ The authors present a retrospective analysis of the results of the cytological examinations of cerebrospinal fluid (CSF) samples and tumor-cyst aspirates deriving from 262 patients treated for malignant intracranial primary and secondary tumors, and vertebral and peridural metastastic processes. Positive preoperative CSF samples were found in 15.3% of all cases of primary cerebral malignancies (13.9% of all gliomas) and positive postoperative CSF samples were found in 40% (91% of the medulloblastoma cases). In all cases of single or multiple secondary cerebral tumors, positive preoperative CSF samples were found in 20%.

Dehydroepiandrosterone (DHEA) Serum Levels Sufficiently Predict Cerebrospinal Fluid Levels of DHEA and Estradiol (E2) in Women at Term Pregnancy

2020 ◽  
Author(s):  
Pardes Habib ◽  
Joseph Neulen ◽  
Shahin Habib ◽  
Benjamin Rösing
Keyword(s):  
Pregnant Women ◽  
Strong Correlation ◽  
Serum Levels ◽  
Neuroactive Steroids ◽  
Term Pregnancy ◽  
Serum Samples ◽  
Functional Changes ◽  
The Central Nervous System ◽  
Csf Levels ◽  
Fluid Levels

Abstract Background and objectives:Neuroactive steroids such as dehydroepiandrosterone (DHEA), estradiol (E2), and progesterone (P4) are associated with structural and functional changes in the central nervous system (CNS). Measurement of steroid levels in the CNS compartments, though restricted in accessibility, is essential for clinical evaluation. Consequently, there is only limited human data on the correlation and equilibrium for steroid levels between peripheral and central compartments. While some neuroactive steroids including DHEA and E2 have been reported to convey excitatory and proconvulsant properties, the opposite was demonstrated for progesterone. We aimed to elucidate the correlation between peripheral and central DHEA, E2, and P4 levels in women at term pregnancy.Subjects and Methods:CSF and serum samples of 27 healthy pregnant women (22-39 years) at term pregnancy were collected simultaneously under combined spinal and epidural anesthesia and used for DHEA, E2, and P4 ELISA.Results:All three neuroactive steroids were detected at markedly lower levels in CSF compared to their corresponding serum concentrations (decrease, mean ± SD, 97.66 ± 0.83 %).We found a strong correlation for DHEA between its serum and the corresponding CSF levels (r=0.65, p=0.003). While a significant but weak correlation (r=0.39, p=0.046) was detected for P4, serum and CSF levels of E2 (r=0.31, p=0.12) appeared not to correlate in the investigated cohort. DHEA serum concentration correlated significantly with both E2 (r=0.58, p=0.0016) and P4 in CSF (r=0.39, p=0.046). A strong correlation between the steroids DHEA and E2 measured in CSF was found (r=0.65, p=0.0002), while no substantial correlation between DHEA and P4 was evident in this compartment (r=0.34, p=0.085). Conclusions: Peripheral DHEA levels might serve as a valid predictor for central nervous levels of the neuroactive steroids DHEA and E2 in pregnant women.

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