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Bründl E, Proescholdt M, Schödel P, Rosengarth K, Störr EM, Bele S, Kieninger M, Malsy M, Schmidt NO, Schebesch KM. Both coiling and clipping induce the time-dependent release of endogenous neuropeptide Y into serum. Front Neurol 2024; 14:1325950. [PMID: 38425753 PMCID: PMC10902915 DOI: 10.3389/fneur.2023.1325950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 12/14/2023] [Indexed: 03/02/2024] Open
Abstract
Background The vaso- and psychoactive endogenous Neuropeptide Y (NPY) has repeatedly been shown to be excessively released after subarachnoid hemorrhage and in numerous psychiatric disorders. NPY is stored in sympathetic perivascular nerve fibers around the major cerebral arteries. This prospective study was designed to analyze the impact of microsurgical and endovascular manipulation of the cerebral vasculature versus cranio- and durotomy alone on the serum levels of NPY. Methods 58 patients (drop-out n = 3; m:f = 26:29; mean age 52.0 ± 14.1 years) were prospectively enrolled. The vascular group underwent repair for unruptured intracranial aneurysms (UIA) of the anterior circulation [endovascular aneurysm occlusion (EV) n = 13; microsurgical clipping (MS) n = 17]; in the non-vascular group, 14 patients received microsurgical resection of a small-sized convexity meningioma (CM), and 11 patients with surgically treated degenerative lumbar spine disease (LD) served as control. Plasma was drawn (1) before treatment (t0), (2) periprocedurally (t1), (3) 6 h postprocedurally (t2), (4) 72 h postprocedurally (t3), and (5) at the 6-week follow-up (FU; t4) to determine the NPY levels via competitive enzyme immunoassay in duplicate serum samples. We statistically evaluated differences between groups by calculating one-way ANOVA and for changes along the time points using repeated measure ANOVA. Results Except for time point t0, the serum concentrations of NPY ranged significantly higher in the vascular than in the non-vascular group (p < 0.001), with a slight decrease in both vascular subgroups 6 h postprocedurally, followed by a gradual increase above baseline levels until FU. At t3, the EV subgroup showed significantly higher NPY levels (mean ± standard deviation) than the MS subgroup (0.569 ± 0.198 ng/mL vs. 0.415 ± 0.192 ng/mL, p = 0.0217). The highest NPY concentrations were measured in the EV subgroup at t1, t3, and t4, reaching a climax at FU (0.551 ± 0.304 ng/mL). Conclusion Our study reveals a first insight into the short-term dynamics of the serum levels of endogenous NPY in neurosurgical and endovascular procedures, respectively: Direct manipulation within but also next to the major cerebral arteries induces an excessive release of NPY into the serum. Our findings raise the interesting question of the potential capacity of NPY in modulating the psycho-behavioral outcome of neurovascular patients.
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Affiliation(s)
- Elisabeth Bründl
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Martin Proescholdt
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Petra Schödel
- Department of Orthopedics, Trauma and Hand Surgery, Section Neurosurgery, Medical Center St. Elisabeth, Straubing, Germany
| | - Katharina Rosengarth
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Eva-Maria Störr
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Sylvia Bele
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Martin Kieninger
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
| | - Manuela Malsy
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
| | - Nils Ole Schmidt
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Karl-Michael Schebesch
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
- Department of Neurosurgery, Paracelsus Medical Private University, Nuremberg, Germany
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Bründl E, Proescholdt M, Schödel P, Bele S, Höhne J, Zeman F, Stoerr EM, Brawanski A, Schebesch KM. Excessive release of endogenous neuropeptide Y into cerebrospinal fluid after treatment of spontaneous subarachnoid haemorrhage and its possible impact on self-reported neuropsychological performance - results of a prospective clinical pilot study on good-grade patients. Neurol Res 2018; 40:1001-1013. [PMID: 30213237 DOI: 10.1080/01616412.2018.1508547] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
OBJECTIVES Neuropsychological dysfunction after treatment of spontaneous subarachnoid haemorrhage (sSAH) is common but underreported. The vasoconstrictor neuropeptide Y (NPY) is excessively released after sSAH and in psychiatric disorders. We prospectively analysed the treatment-specific differences in the secretion of endogenous cerebrospinal fluid (CSF) NPY during the acute stage after sSAH and its impact on cognitive processing. METHODS A total of 26 consecutive patients (f:m = 13:8; mean age 50.6 years) with good-grade sSAH were enrolled (drop out n = 5): n = 9 underwent endovascular aneurysm occlusion, n = 6 microsurgery, and n = 6 patients with perimesencephalic SAH received standardized intensive medical care. Ventricular CSF was drawn daily from day 1-10. CSF NPY levels were determined with competitive enzyme immunoassay. All patients underwent neuropsychological self-report assessment [36-Item Short Form Health Survey (SF-36) and ICD-10-Symptom-Rating questionnaire (ISR)] after the onset of sSAH (day 11-35; t1) and at the 6-month follow-up (t2). RESULTS At t1, increased mean levels of NPY in CSF significantly correlated with impaired performance in most ISR scores (ISR total p = .018, depression p = .035, anxiety p = .008, nutrition disorder p = .047, supplementary items p = .038) and in several psychological SF-36 items (vitality p = .019, general mental health p = .001, mental component summary p = .025). DISCUSSION To the best of our knowledge, this study is the first to correlate the levels of endogenous NPY in supratentorial CSF with cognitive outcome in good-grade sSAH patients. Excessive NPY release into CSF may have a short-term influence on the pathogenesis of neuropsychological deficits. The impact of cerebrovascular manipulation on NPY release has to be further elucidated. ABBREVIATIONS ANOVA: analysis of variance; aSAH: aneurysmal subarachnoid haemorrhage; AUC: area under the curve; CBF: cerebral blood flow; CSF: cerebrospinal fluid; CT (scan): computed tomography (scan); CV: cerebral vasospasm; DIND: delayed ischemic neurological deficit; DSA: digital subtraction angiography; EIA: enzyme immunoassay; EV: endovascular aneurysm occlusion; EVD: external ventricular drainage; FU: 6-month follow-up; GCS: Glasgow Coma Scale; Ghp: general health perceptions; GOS: Glasgow Outcome Scale; h: hour/s; HH: Hunt and Hess; ICU: intensive care unit; ISR: ICD-10-Symptom-Rating questionnaire; MCS: mental component summary; Mhi: general mental health; min: minute/s; min-max: minimum - maximum; ml: millilitre; mRS: modified Ranking Scale; MS: microsurgical clipping, microsurgical aneurysm occlusion; ng: nanograms; no. [n]: number; NPY: Neuropeptide Y; p: p value; Pain: bodily pain; PCS: physical component summary; Pfi: physical functioning; pSAH: perimesencephalic subarachnoid haemorrhage; PTSD: posttraumatic stress disorder; QoL: quality of life; Rawhtran: health transition item; Rolem: role limitations because of emotional problems; Rolph: role limitations due to physical health problems; SAH: subarachnoid haemorrhage; SD: standard deviation; SF-36: 36-Item Short Form Health Survey; Social: social functioning; sSAH: spontaneous subarachnoid haemorrhage; TCD: trans-cranial Doppler ultrasound; (test) t1: test in the sub-acute phase after the onset of bleeding (between day 11 and 35 after subarachnoid haemorrhage); (test) t2: test in the short-term (chronic phase) after treatment at 6-month follow-up; test t1 - t2: intergroup development from t1 to t2; Vital: vitality; vs: versus.
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Affiliation(s)
- Elisabeth Bründl
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Martin Proescholdt
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Petra Schödel
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Sylvia Bele
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Julius Höhne
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Florian Zeman
- b Centre for Clinical Studies , University Medical Centre Regensburg , Regensburg , Germany
| | - Eva-Maria Stoerr
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Alexander Brawanski
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Karl-Michael Schebesch
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
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Differences in Neuropeptide Y Secretion Between Intracerebral Hemorrhage and Aneurysmal Subarachnoid Hemorrhage. J Neurosurg Anesthesiol 2017; 29:312-316. [DOI: 10.1097/ana.0000000000000333] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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High Plasma Levels of Neuropeptide Y Correlate With Good Clinical Outcome But are not Correlated to Cerebral Blood Flow or Vasospasm After Subarachnoid Hemorrhage. J Neurosurg Anesthesiol 2016; 28:65-70. [DOI: 10.1097/ana.0000000000000191] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Biomarkers of vasospasm development and outcome in aneurysmal subarachnoid hemorrhage. J Neurol Sci 2014; 341:119-27. [DOI: 10.1016/j.jns.2014.04.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 03/20/2014] [Accepted: 04/14/2014] [Indexed: 12/30/2022]
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Schebesch KM, Brawanski A, Bele S, Schödel P, Herbst A, Bründl E, Kagerbauer SM, Martin J, Lohmeier A, Stoerr EM, Proescholdt M. Neuropeptide Y - an early biomarker for cerebral vasospasm after aneurysmal subarachnoid hemorrhage. Neurol Res 2013; 35:1038-43. [PMID: 23915659 DOI: 10.1179/1743132813y.0000000246] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVES In the human brain, the potent vasoconstrictive neuropeptide Y (NPY) is abundantly expressed. Neuropeptide Y, which is stored in perivascular nerve fibers of the cerebral arteries, regulates the cerebral vascular diameter as well as cerebral blood flow. However, the role of NPY in the pathogenesis of cerebral vasospasm (CV) related to subarachnoid hemorrhage (SAH) is unclear. We prospectively analyzed and compared the release of endogenous NPY in the cerebrospinal fluid (CSF) of 66 patients with SAH to NPY release in a control group. Additionally, we correlated the levels of NPY with CV and consecutive ischemic stroke. METHODS Sixty-six consecutive patients (40 women, 26 men; mean age 53·1 years) with aneurysmal SAH were included. In the SAH group, CSF was drawn daily from day 1 to day 10 after the onset of SAH. The CSF of 29 patients undergoing spinal anesthesia for orthopedic surgery served as control samples. The NPY levels were determined in duplicate CSF samples by means of a competitive enzyme immunoassay (EIA). The levels of NPY in CSF were correlated with the development of CV over the 10-day period after the onset of SAH and to the occurrence of consecutive ischemic stroke. To evaluate CSF NPY levels as a predictive biomarker for vasospasm, we calculated the sensitivity and specificity as well as the positive and negative predictive values. RESULTS The NPY levels were significantly higher in the SAH group than in the control group (p < 0·001). The treatment modality (clip versus coil) did not influence the level of NPY in CSF (p > 0·05). Patients with CV showed significantly higher NPY levels than patients without CV during the entire observation period. The NPY levels of the non-CV group dissipated over time, whereas the CV group showed continuously increasing values. The NPY levels from day 4 to 10 were significantly higher in patients with CV-related stroke than in non-stroke patients. Using 0·3 ng/ml as a cut-off value, NPY levels on day 3 predicted the occurrence of CV with a sensitivity and specificity of 82% and 72%, respectively. High NPY levels, starting on day 4, significantly correlated with poor Glasgow Outcome Score grading at the follow-up (p < 0·05). DISCUSSION Our data indicate that NPY is involved in the pathogenesis of SAH-related CV and ischemia. Neuropeptide Y represents an early and reliable biomarker for the prediction of CV and consecutive stroke due to aneurysmal SAH.
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Schebesch KM, Brawanski A, Kagerbauer SM, Martin J, Bele S, Herbst A, Feigl G, Stoerr EM, Lohmeier A, Proescholdt M. The possible role of neuropeptide Y after spontaneous subarachnoid hemorrhage. Acta Neurochir (Wien) 2011; 153:1663-8; discussion 1668. [PMID: 21626172 DOI: 10.1007/s00701-011-1056-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Accepted: 05/18/2011] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Neuropeptide Y (NPY), a highly potent vasoconstrictive neuropeptide, is widely expressed in the human brain, regulating vessel diameter and cerebral blood flow. Earlier studies focusing on the possible role of NPY in the context of aneurismal subarachnoid hemorrhage (SAH) and vasospasm have produced conflicting results. However, despite extensive research efforts, the pathophysiological mechanisms underlying the SAH-related vasospasm and delayed cerebral ischemia (DCI) have not been clarified. We, therefore, attempted to investigate the role of NPY in SAH-induced vasospasm in a larger, well documented patient population utilizing modern analytical tools. We focused on the release of the potent vasoconstrictor NPY in cerebrospinal fluid (CSF) and blood, and its correlation to vasospasm and stroke in the early clinical stage. METHODS Thirty-seven patients with SAH and a control group consisting of 29 patients were included. Eighteen patients developed stroke, 21 patients met the Doppler sonographical criteria for vasospasm. Twenty-nine patients had aneurysms of the anterior circulation and four patients of the posterior circulation. All patients had ventricular drainage inserted and an arterial catheter. Blood and CSF were drawn daily for NPY analysis during a 10-day interval. RESULTS The levels of NPY in CSF and plasma were significantly higher after SAH than in the control group (p = 0.001). The vasospasm group showed NPY levels in CSF which continuously ranged above the NPY levels of the non-vasospasm group (p = 0.001). Patients with stroke caused by vasospasm had significantly higher levels of NPY (p = 0.001). DISCUSSION NPY is released excessively into blood and CSF following SAH. Patients with cerebral infarction caused by vasospasm had significantly higher levels of NPY. Our results indicate a certain role for NPY in the pathophysiology of vasospasm due to SAH and justify further studies in this area of research.
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Affiliation(s)
- Karl-Michael Schebesch
- Department of Neurosurgery, University Hospital, University of Regensburg, Franz-Josef-Strauss Allee 11, 93053 Regensburg, Germany.
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Lambert GA, Michalicek J, Regaglia F. Responses of the dural circulation to electrical stimulation of the trigeminal ganglion in the cat. Clin Exp Pharmacol Physiol 1997; 24:377-90. [PMID: 9171940 DOI: 10.1111/j.1440-1681.1997.tb01206.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
1. In cats anaesthetized with alpha-chloralose, electrical stimulation (ES) of the trigeminal ganglion produced a fall in blood pressure, a predominantly ipsilateral dilatation in the common carotid vascular bed and bilateral dilatation of the middle meningeal vascular bed. Section of the trigeminal root abolished these responses. 2. Dilatation in the middle meningeal artery was not affected by section of the cervical sympathetic trunk nor by the section of the seventh cranial nerve trunk. The dilator response was abolished by section of the spinal cord at the C3 level and by intravenous administration of bretylium (10 mg/kg) or phentolamine (5 mg/kg). The response was significantly reduced by the prior administration of papaverine (10 mg/kg). 3. Functional adrenalectomy by means of a snare placed around the nerves and blood vessels supplying the adrenal glands significantly reduced the response. Electrical stimulation of the trigeminal ganglion was accompanied by a fall in circulating levels of noradrenaline and serotonin. 4. We conclude that ES of the trigeminal ganglion produces dilatation in the middle meningeal artery partly by autoregulation during the trigeminal depressor response and partly by a reduction in the circulating levels of noradrenaline. It differs from the dilatation seen in the general carotid circulation and the cortical microcirculation, which is mediated by parasympathetic nerves. There is no evidence that antidromic release of neuropeptides from sensory nerve endings in the dura plays a part in the dilatation.
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Affiliation(s)
- G A Lambert
- Institute of Neurological Sciences, Prince Henry Hospital, Little Bay, New South Wales, Australia.
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Ebersberger A, Ringkamp M, Reeh PW, Handwerker HO. Recordings from brain stem neurons responding to chemical stimulation of the subarachnoid space. J Neurophysiol 1997; 77:3122-33. [PMID: 9212262 DOI: 10.1152/jn.1997.77.6.3122] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The subarachnoid space at the base of the skull was perfused continuously with artificial cerebrospinal fluid in anesthetized rats. A combination of inflammatory mediators consisting of histamine, bradykinin, serotonin, and prostaglandin E2 (10(-5) M) at pH of 6.1 was introduced into the flow for defined periods to stimulate meningeal primary afferents. Secondary neurons in the caudal nucleus of the trigeminal brain stem were searched by electrical stimulation of the cornea. Of the units receiving oligosynaptic input from the cornea, 44% were excited by stimulation of the meninges with inflammatory mediators. Most of these units had small receptive fields including cornea and the periorbital region, and their responsiveness was restricted to stimuli of noxious intensity. Three types of responses to stimulation of the meninges with algogenic agents were encountered: responses that did not outlast the stimulus period, responses outlasting the stimulus period for several minutes, and oscillating response patterns containing periods of enhanced and suppressed activity. The response pattern of a unit was reproducible, however, upon repetitive stimulation at 20-min intervals; the response magnitude showed tachyphylaxis upon stimulus repetition. The preparation presented mimics pathophysiolocial states normally accompanied by headache, e.g., subarachnoidal bleeding. Responsiveness of neurons in the caudal nucleus of the trigeminal brain stem to inflammatory mediators may play a role in the generation and maintenance of headache, e.g., migraine.
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Affiliation(s)
- A Ebersberger
- Department of Physiology and Experimental Pathophysiology, University of Erlangen, Germany
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Arand AG, Zuccarello M, Skidmore BA, Berger RJ, Keller JT. Effect of subarachnoid haemorrhage on trigeminovascular calcitonin-gene-related peptide and substance P of the rat dura mater versus cerebral vasculature. Acta Neurochir (Wien) 1994; 127:103-11. [PMID: 7524275 DOI: 10.1007/bf01808556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
While the presence of a robust perivascular neural network accompanying cerebral and dural blood vessels that contain various neuropeptides is well documented, the functional significance of this innervation is unclear. Following experimentally induced subarachnoid haemorrhage (SAH) in animal models, immunocytochemical studies have revealed that changes occur in the staining intensity of some of these neuropeptides. This study compared the immunostaining intensity of calcitonin-gene-related peptide (CGRP) and substance P (SP) in cerebral and dural perivascular nerve fibers after SAH in the rat. Subarachnoid haemorrhage was produced by injecting 0.3 ml of autologous blood into the cisterna magna of male Sprague Dawley rats. Sham operated animals received an equal volume of buffered lactated Ringer's solution (pH 7.4). Changes in the immunostaining intensity of cerebral and dural vessels were evaluated by independent observers at 6, 24, and 48 hours after SAH. Immunostaining of CGRP was reduced in cerebral vessels at 6 hours and returned to normal by 48 hours. In contrast, CGRP immunostaining of dural perivascular nerve fibers was unchanged at all time periods examined. A marked decrease in SP immunostaining was documented at 6 hours in both the cerebral and dural vessels in all animals; at 48 hours, the staining intensity had returned to control levels. These results support the idea that several subpopulations of trigeminovascular neurons containing CGRP, SP, or both project to cerebral and dural vessels. Since these subpopulations may be differentially activated in pathologic conditions, such as SAH or vascular headache, the potential exists for pharmacologic intervention of specific neuropeptides with the resultant abatement of a pathologic process.
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Affiliation(s)
- A G Arand
- Department of Neurosurgery, University of Cincinnati College of Medicine, OH
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