Cerebrospinal fluid research最新文献

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Alterations in choroid plexus gene expression in Alzheimer’s disease provide inferences for CSF composition and dynamics 阿尔茨海默病脉络膜丛基因表达的改变为脑脊液的组成和动态提供了推断
Cerebrospinal fluid research Pub Date : 2010-12-15 DOI: 10.1186/1743-8454-7-S1-S48
Miles C. Miller, E. Stopa, E. V. Nikonova, Keith Q. Tanis, A. Podtelezhnikov, Eva M. Finney, D. Stone, L. M. Camargo, Lisan Parker, Ajay Verma, A. Baird, J. Donahue, A. González, B. Eliceiri, G. Silverberg, P. Klinge, C. Johanson
{"title":"Alterations in choroid plexus gene expression in Alzheimer’s disease provide inferences for CSF composition and dynamics","authors":"Miles C. Miller, E. Stopa, E. V. Nikonova, Keith Q. Tanis, A. Podtelezhnikov, Eva M. Finney, D. Stone, L. M. Camargo, Lisan Parker, Ajay Verma, A. Baird, J. Donahue, A. González, B. Eliceiri, G. Silverberg, P. Klinge, C. Johanson","doi":"10.1186/1743-8454-7-S1-S48","DOIUrl":"https://doi.org/10.1186/1743-8454-7-S1-S48","url":null,"abstract":"","PeriodicalId":72552,"journal":{"name":"Cerebrospinal fluid research","volume":"7 1","pages":"S48 - S48"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/1743-8454-7-S1-S48","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"65660197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Is it possible to use specific IgE to single latex allergens to discriminate between spina patients with natural rubber latex allergy and sensitization? 是否有可能使用特异性的IgE对单一乳胶过敏原进行区分天然胶乳过敏和致敏的脊柱患者?
Cerebrospinal fluid research Pub Date : 2010-12-15 DOI: 10.1186/1743-8454-7-S1-S17
R. Cremer, H. Rihs, Â. Gaspar, G. Pires, M. Raulf‐Heimsoth
{"title":"Is it possible to use specific IgE to single latex allergens to discriminate between spina patients with natural rubber latex allergy and sensitization?","authors":"R. Cremer, H. Rihs, Â. Gaspar, G. Pires, M. Raulf‐Heimsoth","doi":"10.1186/1743-8454-7-S1-S17","DOIUrl":"https://doi.org/10.1186/1743-8454-7-S1-S17","url":null,"abstract":"","PeriodicalId":72552,"journal":{"name":"Cerebrospinal fluid research","volume":"7 1","pages":"S17 - S17"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/1743-8454-7-S1-S17","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"65659382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Manic episode after treatment with ventriculoperitoneal shunting due to obstructive hydrocephalus with corpus callosal signal changes: a case report 梗阻性脑积水伴胼胝体信号改变,经脑室-腹膜分流治疗后狂躁发作1例
Cerebrospinal fluid research Pub Date : 2010-12-15 DOI: 10.1186/1743-8454-7-S1-S50
Liberto Brage-Martin, A. Castañeyra-Perdomo, Juan C Ribas-Neijerk, M. García-Conde, P. Febles-García, M. Spreafico-Guerrero, L. Pérez-Orribo, R. Pérez-Alfayate, E. Carmona-Calero, V. García-Marín
{"title":"Manic episode after treatment with ventriculoperitoneal shunting due to obstructive hydrocephalus with corpus callosal signal changes: a case report","authors":"Liberto Brage-Martin, A. Castañeyra-Perdomo, Juan C Ribas-Neijerk, M. García-Conde, P. Febles-García, M. Spreafico-Guerrero, L. Pérez-Orribo, R. Pérez-Alfayate, E. Carmona-Calero, V. García-Marín","doi":"10.1186/1743-8454-7-S1-S50","DOIUrl":"https://doi.org/10.1186/1743-8454-7-S1-S50","url":null,"abstract":"","PeriodicalId":72552,"journal":{"name":"Cerebrospinal fluid research","volume":"67 1","pages":"S50 - S50"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/1743-8454-7-S1-S50","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"65659833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ECRG-4 expression in normal and neoplastic choroid plexus ECRG-4在正常和肿瘤脉络膜丛中的表达
Cerebrospinal fluid research Pub Date : 2010-12-15 DOI: 10.1186/1743-8454-7-S1-S32
J. Donahue, Miles C. Miller, Virginia Breese, Sonia Podvin, B. Eliceiri, C. Jackson, C. Johanson, E. Stopa, A. González, A. Baird
{"title":"ECRG-4 expression in normal and neoplastic choroid plexus","authors":"J. Donahue, Miles C. Miller, Virginia Breese, Sonia Podvin, B. Eliceiri, C. Jackson, C. Johanson, E. Stopa, A. González, A. Baird","doi":"10.1186/1743-8454-7-S1-S32","DOIUrl":"https://doi.org/10.1186/1743-8454-7-S1-S32","url":null,"abstract":"","PeriodicalId":72552,"journal":{"name":"Cerebrospinal fluid research","volume":"7 1","pages":"S32 - S32"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/1743-8454-7-S1-S32","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"65659374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
The disruption of the ventricular (VZ) and subventricular (SVZ) zones of the ganglionic eminences in hydrocephalic hyh mice is associated to abnormalities in the cortical GABAergic neurons 脑积水小鼠神经节突起的脑室(VZ)和脑室下(SVZ)带的破坏与皮质gaba能神经元的异常有关
Cerebrospinal fluid research Pub Date : 2010-12-15 DOI: 10.1186/1743-8454-7-S1-S57
K. Vío, Ana Ojeda, R. Yulis, E. Rodríguez
{"title":"The disruption of the ventricular (VZ) and subventricular (SVZ) zones of the ganglionic eminences in hydrocephalic hyh mice is associated to abnormalities in the cortical GABAergic neurons","authors":"K. Vío, Ana Ojeda, R. Yulis, E. Rodríguez","doi":"10.1186/1743-8454-7-S1-S57","DOIUrl":"https://doi.org/10.1186/1743-8454-7-S1-S57","url":null,"abstract":"","PeriodicalId":72552,"journal":{"name":"Cerebrospinal fluid research","volume":"7 1","pages":"S57 - S57"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/1743-8454-7-S1-S57","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"65660011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Diffusion tensor imaging correlates with cytopathology in a rat model of neonatal hydrocephalus. 弥散张量成像与新生儿脑积水大鼠模型的细胞病理学相关。
Cerebrospinal fluid research Pub Date : 2010-11-05 DOI: 10.1186/1743-8454-7-19
Weihong Yuan, Kelley E Deren, James P McAllister, Scott K Holland, Diana M Lindquist, Alessandro Cancelliere, Melissa Mason, Ahmed Shereen, Dean A Hertzler, Mekibib Altaye, Francesco T Mangano
{"title":"Diffusion tensor imaging correlates with cytopathology in a rat model of neonatal hydrocephalus.","authors":"Weihong Yuan,&nbsp;Kelley E Deren,&nbsp;James P McAllister,&nbsp;Scott K Holland,&nbsp;Diana M Lindquist,&nbsp;Alessandro Cancelliere,&nbsp;Melissa Mason,&nbsp;Ahmed Shereen,&nbsp;Dean A Hertzler,&nbsp;Mekibib Altaye,&nbsp;Francesco T Mangano","doi":"10.1186/1743-8454-7-19","DOIUrl":"https://doi.org/10.1186/1743-8454-7-19","url":null,"abstract":"<p><strong>Background: </strong>Diffusion tensor imaging (DTI) is a non-invasive MRI technique that has been used to quantify CNS abnormalities in various pathologic conditions. This study was designed to quantify the anisotropic diffusion properties in the brain of neonatal rats with hydrocephalus (HCP) and to investigate association between DTI measurements and cytopathology.</p><p><strong>Methods: </strong>DTI data were acquired between postnatal day 7 (P7) and P12 in 12 rats with HCP induced at P2 and in 15 age-matched controls. Animals were euthanized at P11 or P22/P23 and brains were processed with immunohistochemistry for glial fibrillary acidic protein (GFAP), ionized calcium-binding adaptor molecule (Iba-1), and luxol fast blue (LFB) to assess astrocytosis, microglial reactivity and degree of myelination, respectively.</p><p><strong>Results: </strong>Hydrocephalic rats were consistently found to have an abnormally low (at corrected p-level of <0.05) fractional anisotropy (FA) value and an abnormally high mean diffusivity (MD) value in the cerebral cortex (CX), the corpus callosum (CC), and the internal capsule (IC). Immunohistochemical analysis demonstrated trends of increasing astrocyte and microglial reactivity in HCP rats at P11 that reached statistical significance at P22/P23. A trend toward reduced myelination in the HCP rats was also found at P22/P23. Correlation analysis at P11 for the CC demonstrated statistically significant correlations (or trends) between the DTI measurement (the decreased FA and increased MD values) and the GFAP or Iba-1 rankings. The immunohistochemical rankings in the IC at P22/P23 were also significantly correlated or demonstrated a trend with both FA and MD values.</p><p><strong>Conclusions: </strong>This study demonstrates the feasibility of employing DTI on the brain in experimental hydrocephalus in neonatal rats and reveals impairments in multiple regions of interest in both grey and white matter. A strong correlation was found between the immunohistochemical results and the changes in anisotropic diffusion properties.</p>","PeriodicalId":72552,"journal":{"name":"Cerebrospinal fluid research","volume":"7 ","pages":"19"},"PeriodicalIF":0.0,"publicationDate":"2010-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/1743-8454-7-19","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29449935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 33
Hydrocephalus induces dynamic spatiotemporal regulation of aquaporin-4 expression in the rat brain. 脑积水诱导大鼠脑内水汽素-4表达的动态时空调节
Cerebrospinal fluid research Pub Date : 2010-11-05 DOI: 10.1186/1743-8454-7-20
Anders D Skjolding, Ian J Rowland, Lise V Søgaard, Jeppe Praetorius, Milena Penkowa, Marianne Juhler
{"title":"Hydrocephalus induces dynamic spatiotemporal regulation of aquaporin-4 expression in the rat brain.","authors":"Anders D Skjolding, Ian J Rowland, Lise V Søgaard, Jeppe Praetorius, Milena Penkowa, Marianne Juhler","doi":"10.1186/1743-8454-7-20","DOIUrl":"10.1186/1743-8454-7-20","url":null,"abstract":"<p><strong>Background: </strong>The water channel protein aquaporin-4 (AQP4) is reported to be of possible major importance for accessory cerebrospinal fluid (CSF) circulation pathways. We hypothesized that changes in AQP4 expression in specific brain regions correspond to the severity and duration of hydrocephalus.</p><p><strong>Methods: </strong>Hydrocephalus was induced in adult rats (~8 weeks) by intracisternal kaolin injection and evaluated after two days, one week and two weeks. Using magnetic resonance imaging (MRI) we quantified lateral ventricular volume, water diffusion and blood-brain barrier properties in hydrocephalic and control animals. The brains were analysed for AQP4 density by western blotting and localisation by immunohistochemistry. Double fluorescence labelling was used to study cell specific origin of AQP4.</p><p><strong>Results: </strong>Lateral ventricular volume was significantly increased over control at all time points after induction and the periventricular apparent diffusion coefficient (ADC) value significantly increased after one and two weeks of hydrocephalus. Relative AQP4 density was significantly decreased in both cortex and periventricular region after two days and normalized after one week. After two weeks, periventricular AQP4 expression was significantly increased. Relative periventricular AQP4 density was significantly correlated to lateral ventricular volume. AQP4 immunohistochemical analysis demonstrated the morphological expression pattern of AQP4 in hydrocephalus in astrocytes and ventricular ependyma. AQP4 co-localized with astrocytic glial fibrillary acidic protein (GFAP) in glia limitans. In vascular structures, AQP4 co-localized to astroglia but not to microglia or endothelial cells.</p><p><strong>Conclusions: </strong>AQP4 levels are significantly altered in a time and region dependent manner in kaolin-induced hydrocephalus. The presented data suggest that AQP4 could play an important neurodefensive role, and may be a promising future pharmaceutical target in hydrocephalus and CSF disorders.</p>","PeriodicalId":72552,"journal":{"name":"Cerebrospinal fluid research","volume":"7 ","pages":"20"},"PeriodicalIF":0.0,"publicationDate":"2010-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2987763/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29449937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diagnosis of idiopathic normal pressure hydrocephalus is supported by MRI-based scheme: a prospective cohort study. 特发性常压脑积水的诊断支持基于mri方案:一项前瞻性队列研究。
Cerebrospinal fluid research Pub Date : 2010-10-31 DOI: 10.1186/1743-8454-7-18
Masaaki Hashimoto, Masatsune Ishikawa, Etsuro Mori, Nobumasa Kuwana
{"title":"Diagnosis of idiopathic normal pressure hydrocephalus is supported by MRI-based scheme: a prospective cohort study.","authors":"Masaaki Hashimoto,&nbsp;Masatsune Ishikawa,&nbsp;Etsuro Mori,&nbsp;Nobumasa Kuwana","doi":"10.1186/1743-8454-7-18","DOIUrl":"https://doi.org/10.1186/1743-8454-7-18","url":null,"abstract":"<p><strong>Background: </strong>Idiopathic normal pressure hydrocephalus (iNPH) is a treatable neurological syndrome in the elderly. Although the magnetic resonance imaging (MRI) findings of tight high-convexity and medial subarachnoid spaces and the ventriculo-peritoneal (VP) shunt with programmable valve are reportedly useful for diagnosis and treatment, respectively, their clinical significance remains to be validated. We conducted a multicenter prospective study (Study of Idiopathic Normal Pressure Hydrocephalus on Neurological Improvement: SINPHONI) to evaluate the utility of the MRI-based diagnosis for determining the 1-year outcome after VP shunt with the Codman-Hakim programmable valve.</p><p><strong>Methods: </strong>Twenty-six centers in Japan were involved in this study. Patients aged between 60 and 85 years with one or more of symptoms (gait, cognitive, and urinary problems) and MRI evidence of ventriculomegaly and tight high-convexity and medial subarachnoid spaces received VP shunt using the height/weight-based valve pressure-setting scheme. The primary endpoint was a favorable outcome (improvement of one level or more on the modified Rankin Scale: mRS) at one year after surgery, and the secondary endpoints included improvement of one point or more on the total score of the iNPH grading scale. Shunt responder was defined by more than one level on mRS at any evaluation point in one year.</p><p><strong>Results: </strong>The full analysis set included 100 patients. A favorable outcome was achieved in 69.0% and 80.0% were shunt responders. When measured with the iNPH grading scale, the one-year improvement rate was 77.0%, and response to the surgery at any evaluation point was detected in 89.0%. Serious adverse events were recorded in 15 patients, three of which were events related to surgery or VP shunt. Subdural effusion and orthostatic headache were reported as non-serious shunt-related adverse events, which were well controlled with readjustment of pressure.</p><p><strong>Conclusions: </strong>The MRI-based diagnostic scheme is highly useful. Tight high-convexity and medial subarachnoid spaces, and enlarged Sylvian fissures with ventriculomegaly, defined as disproportionately enlarged subarachnoid-space hydrocephalus (DESH), are worthwhile for the diagnosis of iNPH. This study is registered with ClinicalTrials.gov, number NCT00221091.</p>","PeriodicalId":72552,"journal":{"name":"Cerebrospinal fluid research","volume":"7 ","pages":"18"},"PeriodicalIF":0.0,"publicationDate":"2010-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/1743-8454-7-18","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29437722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 379
Congenital myelomeningocele - do we have to change our management? 先天性脊髓空洞症--我们需要改变管理方式吗?
Cerebrospinal fluid research Pub Date : 2010-10-14 DOI: 10.1186/1743-8454-7-17
Steffi Mayer, Margit Weisser, Holger Till, Gerd Gräfe, Christian Geyer
{"title":"Congenital myelomeningocele - do we have to change our management?","authors":"Steffi Mayer, Margit Weisser, Holger Till, Gerd Gräfe, Christian Geyer","doi":"10.1186/1743-8454-7-17","DOIUrl":"10.1186/1743-8454-7-17","url":null,"abstract":"<p><strong>Background: </strong>Eagerly awaiting the results of the Management of Myelomeningocele Study (MOMS) and with an increasing interest in setting up intrauterine myelomeningocele repair (IUMR), the optimal management of patients suffering from congenital myelomeningocele (MMC) has become a matter of debate again. We performed a cross-sectional study at our referral-center for MMC to determine the outcome for our expectantly managed patients.</p><p><strong>Materials and methods: </strong>A computed chart review at our institution revealed 70 patients suffering from MMC. Forty-three patients were eligible for the study and analyzed further. A retrospective analysis was performed only in patients that underwent MMC repair within the first two days of life and were seen at our outpatient clinic between 2008 and 2009 for a regular multidisciplinary follow-up. Data were collected on: gestational age (GA) and weight at birth, age at shunt placement and shunt status after the first year of life, radiological evidence for Arnold-Chiari malformation (ACM) and tethered cord (TC), need for surgery for TC, bladder function, lower leg function and educational level. Data were compared to published results for IUMR and to studies of historical controls.</p><p><strong>Results: </strong>Patients were born with MMC between 1979 and 2009 and are now 13.3 ± 8.9 (mean ± SD) years of age. At birth, mean GA was 37.8 ± 2.3 weeks and mean weight was 2921.3 ± 760.3 g, both significantly higher than in IUMR patients. Shunt placement in our cohort was required in 69.8% at a mean age of 16.0 ± 10.7 days, which was less frequent than for historical controls. Amongst our cohort, radiological observations showed 57.1% had ACM II and 41.9% had TC. Only two of our patients underwent a surgical correction for TC. Clean intermittent catheterization was performed in 69.7% of our patients, 56.4% were (assisted) walkers and 64.1% attended regular classes, both comparable to historical controls.</p><p><strong>Conclusions: </strong>With a close and interdisciplinary management by pediatric surgeons, neurologists and urologists, the long-term outcome of patients suffering from MMC can currently be considered satisfactory. With respect to the known drawbacks of fetal interventions for mother and child, especially preterm delivery, the results of the MOMS trial should be awaited with caution before proceeding with a complex intervention like IUMR.</p>","PeriodicalId":72552,"journal":{"name":"Cerebrospinal fluid research","volume":"7 ","pages":"17"},"PeriodicalIF":0.0,"publicationDate":"2010-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2964623/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29355307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of the lateral ventricular choroid plexus in a marsupial, Monodelphis domestica. 有袋动物家兔侧脑室脉络膜丛的发育。
Cerebrospinal fluid research Pub Date : 2010-10-05 DOI: 10.1186/1743-8454-7-16
Shane A Liddelow, Katarzyna M Dziegielewska, John L Vandeberg, Norman R Saunders
{"title":"Development of the lateral ventricular choroid plexus in a marsupial, Monodelphis domestica.","authors":"Shane A Liddelow,&nbsp;Katarzyna M Dziegielewska,&nbsp;John L Vandeberg,&nbsp;Norman R Saunders","doi":"10.1186/1743-8454-7-16","DOIUrl":"https://doi.org/10.1186/1743-8454-7-16","url":null,"abstract":"<p><strong>Background: </strong>Choroid plexus epithelial cells are the site of blood/cerebrospinal fluid (CSF) barrier and regulate molecular transfer between the two compartments. Their mitotic activity in the adult is low. During development, the pattern of growth and timing of acquisition of functional properties of plexus epithelium are not known.</p><p><strong>Methods: </strong>Numbers and size of choroid plexus epithelial cells and their nuclei were counted and measured in the lateral ventricular plexus from the first day of its appearance until adulthood. Newborn Monodelphis pups were injected with 5-bromo-2-deoxyuridine (BrdU) at postnatal day 3 (P3), P4 and P5. Additional animals were injected at P63, P64 and P65. BrdU-immunopositive nuclei were counted and their position mapped in the plexus structure at different ages after injections. Double-labelling immunocytochemistry with antibodies to plasma protein identified post-mitotic cells involved in protein transfer.</p><p><strong>Results: </strong>Numbers of choroid plexus epithelial cells increased 10-fold between the time of birth and adulthood. In newborn pups each consecutive injection of BrdU labelled 20-40 of epithelial cells counted. After 3 injections, numbers of BrdU positive cells remained constant for at least 2 months. BrdU injections at an older age (P63, P64, P65) resulted in a smaller number of labelled plexus cells. Numbers of plexus cells immunopositive for both BrdU and plasma protein increased with age indicating that protein transferring properties are acquired post mitotically. Labelled nuclei were only detected on the dorsal arm of the plexus as it grows from the neuroependyma, moving along the structure in a 'conveyor belt' like fashion.</p><p><strong>Conclusions: </strong>The present study established that lateral ventricular choroid plexus epithelial cells are born on the dorsal side of the structure only. Cells born in the first few days after choroid plexus differentiation from the neuroependyma remain present even two months later. Protein-transferring properties are acquired post-mitotically and relatively early in plexus development.</p>","PeriodicalId":72552,"journal":{"name":"Cerebrospinal fluid research","volume":"7 ","pages":"16"},"PeriodicalIF":0.0,"publicationDate":"2010-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/1743-8454-7-16","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29331333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 38
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