Affiliated Bayi Brain Hospital

Beijing, China

Affiliated Bayi Brain Hospital

Beijing, China
Time filter
Source Type

Zhang H.-T.,Affiliated Bayi Brain Hospital | Xue S.,Southern Medical University | Li P.-J.,Affiliated Bayi Brain Hospital | Fu Y.-B.,Affiliated Bayi Brain Hospital | Xu R.-X.,Affiliated Bayi Brain Hospital
Clinical Neurology and Neurosurgery | Year: 2013

Objective: There is limited information available regarding the treatment of huge hypertensive putaminal hemorrhage (HPH). This study aimed to evaluate our experience of 33 patients with huge HPH who were treated by open surgery (decompressive craniectomy and hematoma evacuation) and external cerebrospinal fluid (CSF) drainage. Methods: We reviewed the records of 33 consecutive patients admitted to our hospital with huge HPH (≥60 cm3). All patients were treated by decompressive craniectomy, hematoma evacuation, and CSF drainage. Data collected included age, gender, blood pressure at admission, Glasgow Coma Scale (GCS) score, intracranial hemorrhage (ICH) location, ICH volume, degree of midline shift, presence/absence of basal cistern obliteration at admission and before surgery, and presence/absence of intraventricular hemorrhage (IVH). Outcome was assessed by the Glasgow Outcome Scale score at 30 days after surgery. Results: The median GCS score was 5.0 at admission, and improved to 8.0 at 1 week after surgery. The median ICH volume was 95 cm 3 before surgery and 4 cm3 after surgery. IVH was observed in 93.9% of patients. The overall survival rate to discharge was 75.6% (25/33), including 15.1% (4/33) with good function, 36.4% (12/33) with disability, and 24.3% (8/33) in a vegetative state. The mortality rate was 24.3% (8/33). Patients with right-sided ICH had better outcomes than those with left-sided ICH. No patients with GCS score ≤6 and ICH volume ≥90 cm3 at admission achieved good postoperative function. Operative time was significantly shorter with hematoma evacuation via the transcortical approach than via the transsylvian approach (3.41 ± 0.75 h vs. 4.14 ± 0.59 h, P < 0.001). There were no significant differences in the rates of mortality or survival with good function between the two groups. Conclusions: Treatment of huge HPH by decompressive craniectomy, hematoma evacuation, and CSF drainage is life-saving. Patients with GCS score 7-8, ICH volume 60-90 cm3, and right-sided ICH may achieve good recovery. The transcortical approach appears to be more effective than the transsylvian approach for rapid decompression of the edematous brain. © 2013 Elsevier B.V.

PubMed | Affiliated Bayi Brain Hospital and Dalian Medical University
Type: Journal Article | Journal: Neurochemical research | Year: 2016

The outcome of intracerebral hemorrhage (ICH) is mainly determined by the volume of the hemorrhage core and the secondary brain damage to penumbral tissues due to brain swelling, microcirculation disturbance and inflammation. The present study aims to investigate the protective effects of cerebrolysin on brain edema and inhibition of the inflammation response surrounding the hematoma core in the acute stage after ICH. The ICH model was induced by administration of type VII bacterial collagenase into the stratum of adult rats, which were then randomly divided into three groups: ICH + saline; ICH + Cerebrolysin (5 ml/kg) and sham. Cerebrolysin or saline was administered intraperitoneally 1 h post surgery. Neurological scores, extent of brain edema content and Evans blue dye extravasation were recorded. The levels of pro-inflammatory factors (IL-1, TNF- and IL-6) were assayed by Real-time PCR and Elisa kits. Aquaporin-4 (AQP4) and tight junction proteins (TJPs; claudin-5, occludin and zonula occluden-1) expression were measured at multiple time points. The morphological and intercellular changes were characterized by Electron microscopy. It is found that cerebrolysin (5 ml/kg) improved the neurological behavior and reduced the ipsilateral brain water content and Evans blue dye extravasation. After cerebrolysin treated, the levels of pro-inflammatory factors and AQP4 in the peri-hematomal areas were markedly reduced and were accompanied with higher expression of TJPs. Electron microscopy showed the astrocytic swelling and concentrated chromatin in the ICH group and confirmed the cell junction changes. Thus, early cerebrolysin treatment ameliorates secondary injury after ICH and promotes behavioral performance during the acute phase by reducing brain edema, inflammatory response, and blood-brain barrier permeability.

Zhang Y.,Shanghai JiaoTong University | Yi B.,Anhui Medical University | Ma J.,Affiliated Bayi Brain Hospital | Zhang L.,Affiliated Bayi Brain Hospital | And 3 more authors.
Neurochemical Research | Year: 2014

Intracerebral hemorrhage (ICH) is a common and devastating disease affecting millions of people worldwide annually. Exaggerated inflammation and apoptosis are two pivotal pathological processes for secondary brain injury after ICH. Quercetin, a flavonoid widely distributed in various herbs, fruits and vegetables, has been proved to improve neuronal functional recovery in spinal cord injury rats. However, the efficacy of quercetin in caring for post-ICH brain injury has not been investigated. In the present study, we established an ICH model by injecting type VII bacterial collagenase (0.5U) into the central striatum of male Sprague–Dawley rats. The animals were randomized to four groups: sham-operation group; ICH + vehicle group; ICH + 5 mg/kg quercetin group; and ICH + 50 mg/kg quercetin group. The expression levels of IL-1β, IL-4, IL-6 and TNF-α in the brain tissue were assayed by Real-time PCR, ELISA and Western Blot, and cell apoptosis was assayed by TUNEL and caspase-3 staining 3 days after model establishment. It was found that the lesion volume, the brain water content, the expression levels of the four inflammation markers and the number of apoptotic cells were reduced significantly in ICH rats receiving quercetin, especially in 50 mg/kg quercetin group. These results confirmed the therapeutic efficacy of quercetin in repairing brain injury, probably by inhibiting inflammatory response and apoptosis, thus promoting nerve functional restoration. © 2014, Springer Science+Business Media New York.

Li G.,Affiliated Bayi Brain Hospital | Xu R.,Affiliated Bayi Brain Hospital | Cao Y.,Affiliated Bayi Brain Hospital | Xie X.,General Hospital of Shenyang Military Command | Zheng Z.,General Hospital of Shenyang Military Command
Inflammation | Year: 2014

There has been more and more evidence to confirm the essential role of inflammatory processes in the development of ischemic stroke. Interleukin-21 (IL-21), the most recently discovered CD132-dependent cytokine, plays a key role in regulating inflammation. The aim of the study was to understand the association between IL-21 polymorphisms and ischemic stroke, and the effects of these polymorphisms on gene expression. Two polymorphisms in IL-21, rs907715G/A and rs4833837A/G, were identified in 278 ischemic stroke patients and 282 healthy controls. Results showed that frequencies of rs907715GA and AA genotypes were significantly increased in cases than in controls (odd ratio (OR) = 1.49, 95 % confidence interval (CI): 1.01–2.14, P = 0.042; OR = 2.21, 95 % CI: 1.38–3.53, P = 0.001). Similarly, rs907715A allele revealed a positive association with the disease (OR = 1.52, P = 0.001). The rs4833837A/G polymorphism did not show any correlation with ischemic stroke. We further evaluated IL-21 messenger RNA (mRNA) and protein levels in peripheral blood mononuclear cells (PBMCs) from subjects carrying different polymorphism genotypes. Results revealed that subjects carrying polymorphic rs907715GA and AA genotypes had significantly higher IL-21 mRNA levels, whereas protein level was increased only in subjects with rs907715AA genotype. Serum level of IL-21 was also significantly elevated in subjects with rs907715AA genotype. These data suggest that IL-21 polymorphism is associated with increased susceptibility to ischemic stroke possibly by upregulating gene expression. © 2014, Springer Science+Business Media New York.

PubMed | Affiliated Bayi Brain Hospital and General Hospital of Shenyang Military Command
Type: Journal Article | Journal: Clinical and experimental pharmacology & physiology | Year: 2016

Acute lung injury and acute respiratory distress syndrome (ARDS) are caused by rapid-onset bilateral pulmonary inflammation. We therefore investigated the potential role of interleukin (IL)-10

Yuan J.,Chongqing Medical University | Zou M.,Affiliated Bayi Brain Hospital | Xiang X.,Chongqing Medical University | Zhu H.,Chongqing Medical University | And 4 more authors.
Journal of Surgical Research | Year: 2015

Background Spinal cord injury (SCI) is characterized by a high rate of disability and imposes a heavy burden on society and patients. SCI can activate glial cells and lead to swelling, hyperplasty, and reactive gliosis, which can severely reduce the space for nerve growth. Glial cells can secrete a large amount of extracellular inhibitory components, thus altering the microenvironment of axon growth. Both these factors seriously impede nerve regeneration. In the present study, we investigate whether curcumin (cur), a phytochemical compound with potent anti-inflammatory effect, plays a role in the repair of SCI. Materials and methods We established a rat model of SCI and treated the animals with different concentrations of cur. Using behavioral assessment, immunohistochemistry, real-time polymerase chain reaction, Western blotting, and enzyme-linked immunosorbent assay, we detected the intracellular and extracellular components of glial scar and related cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-1β, nuclear factor (NF)-κb, transforming growth factor (TGF)-β1, TGF-β2, and sex determining region Y-box (SOX)-9. Results We found that cur inhibited the expression of proinflammatory cytokines, such as TNF-α, IL-1β, and NF-κb; reduced the expression of the intracellular components glial fibrillary acidic protein through anti-inflammation; and suppressed the reactive gliosis. Also, cur inhibited the generation of TGF-β1, TGF-β2, and SOX-9; decreased the deposition of chondroitin sulfate proteoglycan by inhibiting the transforming growth factors and transcription factor; and improved the microenvironment for nerve growth. Through the joint inhibition of the intracellular and extracellular components of glial scar, cur significantly reduced glial scar volume and improved the Basso, Beattie, and Bresnahan locomotor rating and axon growth. Conclusions Our data support a role for curcumin in promoting neural function recovery after SCI by the joint inhibition of the intracellular and extracellular components of glial scar, providing an important strategy for treating SCI. © 2015 Elsevier Inc. All rights reserved.

Geng C.-K.,Kunming Medical University | Cao H.-H.,Kunming Medical University | Ying X.,Kunming Medical University | Zhang H.-T.,Kunming Medical University | And 2 more authors.
Brain Research | Year: 2015

The immunoreactive responses are a two-edged sword after spinal cord injury (SCI). Macrophages are the predominant inflammatory cells responsible for this response. However, the mechanism underlying the effects of HBOT on the immunomodulation following SCI is unclear now. The present study was performed to examine the effects of hyperbaric oxygen therapy (HBOT) on macrophage polarization after the rat compressive injury of the spinal cord. HBOT was associated with significant increases in IL-4 and IL-13 levels, and reductions in TNF-α and IFN-β levels. This was associated simultaneously with the levels of alternatively activated macrophages (M2 phenotype: arginase-1- or CD206-positive), and decreased levels of classically activated macrophages (M1 phenotype: iNOS- or CD16/32-positive). These changes were associated with functional recovery in the HBOT-transplanted group, which correlated with preserved axons and increased myelin sparing. Our results suggested that HBOT after SCI modified the inflammatory environment by shifting the macrophage phenotype from M1 to M2, which may further promote the axonal extension and functional recovery. © 2015 Elsevier B.V. All rights reserved.

Zhang H.-T.,Affiliated Bayi Brain Hospital | Liu Z.-L.,Affiliated Bayi Brain Hospital | Yao X.-Q.,Affiliated Bayi Brain Hospital | Yang Z.-J.,Affiliated Bayi Brain Hospital | Xu R.-X.,Affiliated Bayi Brain Hospital
Cytotherapy | Year: 2012

Background aims. The characteristics, such as morphologic and phenotypic characteristics and neural transdifferentiation ability, of mesenchymal stromal cells (MSC) derived from different origins have yet to be reported for cases isolated from the same individual. Methods. The proliferation capacity, secretion ability of neurotrophins (NT) and neural differentiation ability in rat MSC isolated from bone marrow (BMSC) and adipose tissue (ADSC) were compared from the same animal. Results. The ADSC had a significantly higher proliferation capacity than BMSC according to cell cycle and cumulative population doubling analyses. The proportion of cells expressing neural markers was greater in differentiated ADSC than in differentiated BMSC. Furthermore, the single neurosphere derived from ADSC showed stronger expansion and differentiation abilities than that derived from BMSC. The findings from Western blot lent further support to the immunocytochemical data. The mRNA and protein levels of nerve growth factor (NGF) and brain-derived growth factor (BDNF) expressed in ADSC were significantly higher than those in BMSC at different stages before and following induction. Conclusions. Our study suggests that the proliferation ability of ADSC is superior to that of BMSC. Furthermore, differentiated ADSC expressed higher percentages of neural markers. As one possible alternative source of BMSC, ADSC may have wide potential for treating central nervous system (CNS) diseases. © 2012 Informa Healthcare.

Zhang Z.,Affiliated Bayi Brain Hospital | Lv X.,Capital Medical University | Yang X.,Capital Medical University | Shiqing M.U.,Capital Medical University | And 3 more authors.
Neurology India | Year: 2015

Aims: To evaluate the outcome of giant intra-dural aneurysms managed with endovascular techniques. Materials and Methods: We retrospectively reviewed a series of 39 consecutive giant intra-dural aneurysms. The technical feasibility of endovascular treatment, its complications, the angiographic results and the clinical outcome were assessed. Logistic regression analysis was performed to evaluate for predictors of a poor outcome. Results: Nine patients were left untreated. During a 30 month follow-up, four of them (44.4%) died and two (22.2%) deteriorated. Thirty aneurysms (12 located in the anterior circulation and 18 located in the posterior circulation) were treated using endovascular methods. Of these, 11 were treated by parent vessel occlusion, 11 by stent-assisted coiling, one using only coils, six using solely a stent, and, one using both coils and onyx. During a 28 month follow-up, seven (23.3%) patients died and two (6.7%) patients experienced permanent neurological deficits. The mortality and morbidity in the endovascular group seemed lower than that in the untreated group (P = 0.045, 30% vs. 66.7%). There was no difference in the results of endovascular treatment between giant intra-dural aneurysms located in the posterior and the anterior circulation. Conclusions: Giant intra-dural aneurysms, whether treated or not, may have a poor clinical outcome. The outcome following endovascular treatment of these lesions is better than its natural history when left untreated. However, endovascular treatment may often be associated with high complication rates and a low chance of cure. © 2015, Medical Knowledge. All rights reserved.

Chen L.-H.,Affiliated Bayi Brain Hospital | Zhang H.-T.,Affiliated Bayi Brain Hospital | Chen L.,Capital Medical University | Liu L.-X.,Capital Medical University | Xu R.-X.,Affiliated Bayi Brain Hospital
Clinical Neurology and Neurosurgery | Year: 2014

Objective The purpose of this study is to provide a retrospective review of patients with brain stem cavernous malformation (BSCM) at single institution. Methods Clinical courses were retrospectively reviewed for 38 consecutive patients who underwent microsurgical resection of symptomatic BSCMs in the sub-acute phase between January 2000 and December 2009. Microsurgery was performed with the help of intraoperative neuronavigation and neurophysiological monitoring. The baseline information of patients, lesion characteristics, surgical approaches, and follow-up outcomes were analyzed. Results All 38 patients received microsurgical resections without surgery-related mortality, and 37 patients were completely extirpated. 21 patients who experienced neurological deficits had functional improvement after surgery, 15 patients had no change in the neurological status over time to their preoperative condition or better, and 2 patients deteriorated. During the follow-up, 28 patients had resumed activities of daily living (KPS = 90-100), 8 patients were able to self-care with some efforts (KPS = 70-80) and other 2 patients needed considerable assistance. None of the operated patient had recurrent hemorrhage. Postoperative complications included new cranial nerve deficits in 13 patients, motor deficits in 3 patients, and new sensory disturbances in 6 patients. Conclusion Complete surgical resection could be achieved through careful preoperative planning, selection of the optimal operative approach, a meticulous microsurgical technique and intraoperative navigation. However, taking into account the relatively high postoperative morbidity, complete resection is not always the goal for BSCMs, especially for those deep-seated lesions. © 2013 Elsevier B.V.

Loading Affiliated Bayi Brain Hospital collaborators
Loading Affiliated Bayi Brain Hospital collaborators