{"title":"Effects of Transcranial Direct Current Stimulation on Motor and Cognitive Dysfunction in an Experimental Traumatic Brain Injury Model.","authors":"Guven Akcay, Filiz Demirdogen, Tuba Gul, Ali Yilmaz, Dilcan Kotan, Esra Karakoc, Huseyin Emre Ozturk, Cagla Celik, Haydar Celik, Yavuz Erdem","doi":"10.5137/1019-5149.JTN.45526-23.4","DOIUrl":"10.5137/1019-5149.JTN.45526-23.4","url":null,"abstract":"<p><strong>Aim: </strong>To investigate the therapeutic and neuroprotective effects of transcranial direct current stimulation (tDCS) application on the traumatic brain injury (TBI)-induced glutamate and calcium excitotoxicity and loss of motor and cognitive functions.</p><p><strong>Material and methods: </strong>Forty rats were equally divided in the sham, TBI, tDCS + TBI + tDCS, and TBI + tDCS groups. Mild TBI was induced by dropping a 450-g iron weight from a height of 1 m onto the skull of the rats. The tDCS + TBI + tDCS group was prophylactically administered 1 mA stimulation for 30 min for 7 days starting 5 days before inducing TBI. In the TBI + tDCS group, tDCS (1 mA for 30 min) was administered 2 h after TBI, on days 1 and 2. Cognitive and locomotor functions were assessed using the novel object recognition and open field tests. The calcium, glutamate, and N-methyl-D-aspartate receptor 1 (NMDAR1) levels in the hippocampus were measured using enzyme-linked immunosorbent assay.</p><p><strong>Results: </strong>Although the motor and cognitive functions were substantially reduced in the TBI group when compared with the sham, they improved in the treatment groups (p < 0.05). The calcium, glutamate, and NMDAR1 levels were considerably higher in the TBI group than in the sham (p < 0.001). However, they were considerably lower in the tDCS + TBI + tDCS and TBI + tDCS groups than in the TBI groups (p < 0.05). In particular, the change in the tDCS + TBI + tDCS group was higher than that in the TBI + tDCS group.</p><p><strong>Conclusion: </strong>Application of tDCS before the development of TBI improved motor and cognitive dysfunction. It demonstrated a neuroprotective and therapeutic effect by reducing the excitotoxicity via the regulation of calcium and glutamate levels.</p>","PeriodicalId":94381,"journal":{"name":"Turkish neurosurgery","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140144993","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}
Liang Xing, Jin Ma, Yina He, Lin Wu, Chao Luo, Xin Peng, Guang Wang, Zhengfang Jiang, Zhipeng Teng
{"title":"Experimental Feasibility Study of TRAIL Gene Transfected into Neural Stem Cells.","authors":"Liang Xing, Jin Ma, Yina He, Lin Wu, Chao Luo, Xin Peng, Guang Wang, Zhengfang Jiang, Zhipeng Teng","doi":"10.5137/1019-5149.JTN.35812-21.7","DOIUrl":"10.5137/1019-5149.JTN.35812-21.7","url":null,"abstract":"<p><strong>Aim: </strong>To investigate the feasibility of transfecting the TNF-related apoptosis-inducing ligand (TRAIL) gene into neural stem cells (NSCs) in vitro, and explore whether NSCs retain their proliferative and differentiated activities after transfection.</p><p><strong>Material and methods: </strong>NSCs were obtained from fetal mouse brains, cultured in serum-free medium and identified by immunofluorescence staining. Lentivirus vector solution containing green fluorescent protein (GFP) gene was added to the NSCs based on the multiplicity of infection (MOI). The transfection efficiency of GFP was observed using a fluorescence microscope and detected by flow cytometry. NSCs were transfected with GFP-TRAIL fusion genes mediated by the optimized MOI lentivirus solution. The expression of TRAIL proteins in NSCs was detected by immunofluorescence and Western blot analysis. The differentiation of NSCs were induced and identified by immunofluorescence staining.</p><p><strong>Results: </strong>The optimal MOI value of virus transfection was 10, resulting in a transfection rate was higher than 90%. GFP fluorescence could be observed at 24 hours after transfecting GFP-TRAIL genes into NSCs with an MOI of 10, and reached the maximum value at 72 hours. Immunofluorescence and Western-blot assays confirmed that GFP-TRAIL fusion proteins could be continuously expressed stably. Transfected NSCs could differentiate into neurons and glial cells without any statistically significant difference compared to the non-transfected group.</p><p><strong>Conclusion: </strong>Neural stem cells retained their proliferative and differentiated potential after being transfected with the TRAIL gene while sustainably expressing TRAIL protein.</p>","PeriodicalId":94381,"journal":{"name":"Turkish neurosurgery","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549962","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}
{"title":"Neglected Case of Cervical Meningocele in an Adult.","authors":"Ismail Bozkurt, Afife Durlanik, Suat Canbay","doi":"10.5137/1019-5149.JTN.45997-23.2","DOIUrl":"10.5137/1019-5149.JTN.45997-23.2","url":null,"abstract":"<p><p>Neural tube defects (NTD), caused by a disturbance in the neurulation process, are easily diagnosed and treated in the early years of life. Although early repair of NTD is advocated, there is lacking information on its natural course. There are only 11 cases, including this one, reported in literature of a cervical meningocele diagnosed and treated in an adult. A 64-year-old male patient was aware of a skin lesion on his neck but had not consulted a physician until 3 years ago when he started experiencing neuropathic pain in his arms. Cervical MRI revealed a posterior arch fusion defect, a syrinx cavity between the C2-C6 levels with a tethering meningocele at the C6 level. He was operated on with the excision of the skin tag and connecting stalk. During prone positioning and neck flexion, intraoperative neuromonitorazion indicated a loss in MEP values; thus, flexion was reduced. Intradural adhesiolysis of the connecting bands around the spinal cord was performed, and dura was sutured. The patient recovered uneventfully, but he still had neuropathic pain in his left arm aggravated by straining. Histological analysis revealed meningothelial cells and psammoma bodies. Postoperative MRI revealed the untethering of the spinal cord with relative reduction in the syrinx cavity. NTD can be easily detected and treated early in life to prevent neurological deterioration, to decrease the rate of infection, and to improve cosmetic appearance. However, because they are mostly treated during childhood, their natural course in adulthood remains unknown. There are only a handful of case reports of cervical meningoceles in adults. Pathological analysis suggestive of a meningioma may also shed light on the theory of \"cutaneous meningioma.\" In addition, the loss of MEP values in neck flexion should caution surgeons in avoiding hyperflexion, especially in cases of spinal cord tethering.</p>","PeriodicalId":94381,"journal":{"name":"Turkish neurosurgery","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549965","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}
Onur Ozgural, Eyup Bayatli, Halit Anil Eray, Omer Mert Ozpiskin, Sena Unal, Elif Peker, Melih Bozkurt, Gokmen Kahilogullari
{"title":"The Utility of Neuroendoscopic Approach for Pineal Region Lesions: Single-Centre Experience.","authors":"Onur Ozgural, Eyup Bayatli, Halit Anil Eray, Omer Mert Ozpiskin, Sena Unal, Elif Peker, Melih Bozkurt, Gokmen Kahilogullari","doi":"10.5137/1019-5149.JTN.44904-23.4","DOIUrl":"10.5137/1019-5149.JTN.44904-23.4","url":null,"abstract":"<p><strong>Aim: </strong>To investigate the treatment approaches and follow-up data of patients with pineal region tumours at our institution.</p><p><strong>Material and methods: </strong>A retrospective study was planned to evaluate patients who diagnosed with a pineal mass between 2019 and 2022 whether incidentally or symptomatically. All patients were evaluated regarding their radiological findings, clinical, labrotary and radiological outcomes of surgery if any performed, intraoperative and postoperative pathological diagnoses, and radiological and symptomatic follow-up results for at least one year.</p><p><strong>Results: </strong>A total of 16 patients were grouped into 2; intervention and conservation groups, respectively. Nine out of 16 patients received intervention (surgery with or without ionising radiation therapy) and remained 7 followed up without intervention. Seven patients in the intervention group were found to have triventricular hydrocephalus, and one had tetraventricular hydrocephalus. Endoscopic approach was the preferred surgical intervention in all operated patients which was conventional endoscopic third ventriculostomy (ETV) via a right-sided frontal burr hole. Five patients required a simultaneous external ventricular drain. Neuronavigation was used in all the procedures.</p><p><strong>Conclusion: </strong>Neuroendoscopic intervention is a relatively safe, effective, low-cost initial procedure with low morbidity rates and enables patients to return daily life rapidly. Neuroendoscopy is the best approach for simultaneously providing tissue sampling and diversion of cerebrospinal fluid via ETV or septostomy in hydrocephalic patients with tumours in the pineal region.</p>","PeriodicalId":94381,"journal":{"name":"Turkish neurosurgery","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549955","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}
{"title":"Medial Pontine Area: A Safe Entry to the Brainstem as a Cut Above the Rest.","authors":"Abdullah Emre Tacyildiz, Ozan Barut, Melih Ucer, Yaser Ozgunduz, Necmettin Tanriover","doi":"10.5137/1019-5149.JTN.45710-23.1","DOIUrl":"10.5137/1019-5149.JTN.45710-23.1","url":null,"abstract":"<p><strong>Aim: </strong>To examine the fiber-based anatomy of the medial pontine area (MPA), one of the most commonly used brainstem (BS) safe entry zones in neurosurgery.</p><p><strong>Material and methods: </strong>According to the protocol of Klingler and Ludwig, six BSs were kept in 10% formalin solution for at least 2 months. After removing the arachnoid mater, pia mater, and vascular structures, the samples were frozen at -16°C for at least 2 weeks. White matter (WM) pathways of the BS were gradually examined using fiber dissections under a surgical microscope.</p><p><strong>Results: </strong>Safe entry zones of the BS were defined and investigated, focusing on the ventral pontine region and pontomesencephalic junction. Because of the lack of fibers on the anterior surface of the pons, the MPA formed a safe surgical area. The MPA, strategically positioned between the descending corticospinal tracts and extending securely to the anterior limit of the medial lemniscus, serves as a protective pathway, creating a secure environment for accessing safe entry zones within the BS during surgery.</p><p><strong>Conclusion: </strong>The position of the MPA has the potential to provide a combined surgical path with superiorly located BS entry zones, resulting in a larger surgical area. Entry to the BS via the MPA increases the accessible surface area in the ventral pons and can be combined with the other perioculomotor safe regions outlined. Our findings might lead to safer endoscopic endonasal transclival interventions for intrinsic pontine lesions.</p>","PeriodicalId":94381,"journal":{"name":"Turkish neurosurgery","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549964","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}
Orlando Perez-Campos, Katherine P Gallego-Henao, Francisco Castañeda-Aguayo, Aureliano Placido-Mendez, Ricardo Valdez-Orduño
{"title":"Choroid Plexus Tumors of the Central Nervous System: A Review of Data with a Case of Disseminated Choroid Plexus Papilloma.","authors":"Orlando Perez-Campos, Katherine P Gallego-Henao, Francisco Castañeda-Aguayo, Aureliano Placido-Mendez, Ricardo Valdez-Orduño","doi":"10.5137/1019-5149.JTN.45592-23.4","DOIUrl":"10.5137/1019-5149.JTN.45592-23.4","url":null,"abstract":"<p><strong>Aim: </strong>To highlight the critical role of molecular profiling of choroid plexus epithelium tumors (CPTs) in guiding individualized treatment strategies.</p><p><strong>Material and methods: </strong>Histopathological diagnoses were obtained from surgically resected tumors at Centro Medico Nacional 20 de Noviembre, Mexico City (Department of Neurosurgery). The cohort comprised four children (two females and two males) and three adults (one male and two females).</p><p><strong>Results: </strong>This study retrospectively analyzed data from seven patients diagnosed with CPT over a 5-year period. The pathological distribution consisted of three carcinomas, three papillomas, and one disseminated choroid plexus papilloma. Patient ages ranged from 1 to 62 years. All patients received chemotherapy, with four patients additionally undergoing radiotherapy. The median survival rate was six months, with one patient (carcinoma diagnosis) succumbing to the disease.</p><p><strong>Conclusion: </strong>CPT, characterized by low incidence, present a significant clinical challenge. Histological grade remains the primary prognostic factor. Disseminated choroid plexus papilloma, an infrequent entity with limited reported cases, exhibits no response to radiotherapy. Moving forward, this field urgently requires the exploration of targeted molecular therapies and minimally invasive surgical approaches to address these rare and intricate tumors.</p>","PeriodicalId":94381,"journal":{"name":"Turkish neurosurgery","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141862022","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}
Konstantinos Panagiotopoulos, Roberto Gazzeri, Santo R Princiotto, Giovanni Pennisi, Umberto Agrillo
{"title":"Full-Endoscopic Lumbar Discectomy: Tips & Tricks for New Users Based on a Retrospective Observational Study of the First 100 Patients.","authors":"Konstantinos Panagiotopoulos, Roberto Gazzeri, Santo R Princiotto, Giovanni Pennisi, Umberto Agrillo","doi":"10.5137/1019-5149.JTN.44931-23.4","DOIUrl":"10.5137/1019-5149.JTN.44931-23.4","url":null,"abstract":"<p><strong>Aim: </strong>To report our institutional experience with full-endoscopic lumbar discectomy (FELD) and analyzed the pertinent literature.</p><p><strong>Material and methods: </strong>We retrospectively enrolled 100 patients who had undergone full-endoscopic discectomy for lumbar disc herniation using either an interlaminar (IL) or transforaminal (TF) approach. All patients underwent pre-operative imaging. Before and after surgery, patients' pain and disability levels were measured using visual analog scale (VAS) and Oswestry disability index (ODI) respectively. Clinical outcomes were assessed using the modified MacNab criteria. Patients were divided into two groups, Group 1 (cases 1-50) and Group 2 (cases 51-100), and their learning curve factors were compared using a Student's t-test.</p><p><strong>Results: </strong>Sixtynine cases were operated via an IL approach and the remaining 31 cases using a TF approach. There were 4 early conversions in microdiscectomy. The mean operative time of the 96 procedures was 57 min. In Group 1, the mean operative time was 61.7 minutes (range: 35-110); in Group 2, it was 52.3 minutes (range: 25-75). The difference between the two groups was statistically significant (p=0.009). No significant differences were found in conversions, early operations, and recurrences between Groups 1 and 2. Both groups experienced a significant reduction in postoperative VAS and ODI compared to preoperative scores.</p><p><strong>Conclusion: </strong>The findings support previously reported information on the safety and effectiveness of the FELD. Herein, we share some practical tips and tricks based on our initial experience and on the review of the available literature, which could facilitate new users. In experienced hands endoscopic techniques make treatment of herniated discs feasible independently of patient age, anatomy, and/or targeted pathology features. Conversely, thoughtful patient selection and careful preoperative planning are highly recommended for new users.</p>","PeriodicalId":94381,"journal":{"name":"Turkish neurosurgery","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141319426","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}
Zachary C Taylor, Ravi S Nunna, Angela Tran, Matías Costa, Maxwell Gruber, Periklis Godolias, Zachary Litvack
{"title":"COVID-19 Vaccine Related Cervical Radiculitis and Parsonage-Turner Syndrome: Case Report and Review of the Literature.","authors":"Zachary C Taylor, Ravi S Nunna, Angela Tran, Matías Costa, Maxwell Gruber, Periklis Godolias, Zachary Litvack","doi":"10.5137/1019-5149.JTN.44533-23.2","DOIUrl":"10.5137/1019-5149.JTN.44533-23.2","url":null,"abstract":"<p><p>Parsonage-Turner Syndrome, or neuralgic amyotrophy, is an acute-onset upper limb and shoulder girdle palsy that can occur in a post-viral, post-surgical or idiopathic setting. There have also been some reported cases of the syndrome occurring following vaccinations. The pathophysiology of neuralgic amyotrophy is not completely understood and many of the commonly used diagnostic imaging modalities we use to try and diagnose this syndrome are inaccurate and misleading. We present the case of a 40-year-old gentleman who presented with acute onset burning pain and fasciculations in his right upper extremity following vaccination with the second dose of the Pfizer-BioNTech COVID-19 vaccine. His symptoms progressed to weakness in isolated muscle groups with electromyographic evidence of decreased nerve conduction. MRI of the cervical spine demonstrated multilevel central and foraminal stenosis, suggesting a diagnosis of cervical radiculopathy. The patient underwent a C4-5/C5-6 and C6-7 laminoforaminotomy and tolerated the procedure well. Post-operatively, the patient has experienced gradual symptom improvement with residual right triceps and pectoralis muscle weakness as well as paresthesias of the right elbow and forearm. Parsonage-Turner Syndrome is a brachial plexus palsy that can affect one or multiple branches of the brachial plexus. It causes acute-onset pain and weakness, and the diagnosis can be difficult to make with the commonly used diagnostic imaging methods. We reviewed other case reports about neuralgic amyotrophy following vaccinations as well as the current literature on more accurate diagnostic imaging modalities that may help our diagnosis and understanding of the pathophysiology of this condition.</p>","PeriodicalId":94381,"journal":{"name":"Turkish neurosurgery","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140144991","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}
Caner Unluer, Pinar Kuru Bektasoglu, Berrin Imge Erguder, Ata Turker Arikok, Ilcim Ermutlu, Bora Gurer, Hayri Kertmen
{"title":"Amantadine's Neuroprotective Effects in Rabbit Spinal Cord Ischemia/Reperfusion Model.","authors":"Caner Unluer, Pinar Kuru Bektasoglu, Berrin Imge Erguder, Ata Turker Arikok, Ilcim Ermutlu, Bora Gurer, Hayri Kertmen","doi":"10.5137/1019-5149.JTN.45875-23.3","DOIUrl":"10.5137/1019-5149.JTN.45875-23.3","url":null,"abstract":"<p><strong>Aim: </strong>To examine the effects of amantadine, a drug with neuroprotective and anti-inflammatory activities on oxidative stress, tissue necrosis, apoptosis, and neurological recovery in an experimental rabbit spinal cord ischemia-reperfusion injury (SCIRI) model.</p><p><strong>Material and methods: </strong>A total of 32 rabbits were randomized into five groups: control, ischemia, vehicle, methylprednisolone (MP), and amantadine (AMT) (n=8/each). At 24th-hour neurological examination was performed, spinal cord tissues were collected, and biochemical and histopathological examinations were performed.</p><p><strong>Results: </strong>When ischemia and vehicle groups were compared with control group, significant increase was seen in serum and tissue caspase-3, malondialdehyde (MDA), and myeloperoxidase (MPO) levels (p < 0.001); significant decrease was seen in serum and tissue catalase (CAT) levels (p < 0.001); and significant increase was seen in serum xanthine oxidase (XO) levels (p < 0.001). When the ischemia group and the MP and AMT groups were compared, low serum and tissue caspase-3 levels (p < 0.001), high serum and tissue CAT levels (p < 0.001), significantly low serum XO levels (p < 0.001), low serum and tissue MDA levels (p < 0.05) and tissue MPO levels (p < 0.001) were found. Both AMT and MP groups showed decreased histopathological score and higher number of normal neurons (p < 0.001) compared to ischemia group. Both AMT and MP showed better modified Tarlov scores compared to the ischemia group (p < 0.001).</p><p><strong>Conclusion: </strong>Our study found that AMT had antioxidant, anti-inflammatory, anti-apoptotic, and neuroprotective effects on SCIRI. We used biochemical, microscopic, and ultrastructural approaches to demonstrate these effects. AMT might be a candidate medication for SCIRI prophylaxis and treatment.</p>","PeriodicalId":94381,"journal":{"name":"Turkish neurosurgery","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549956","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}