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Suzuki M, Wu YJ, Ota K, von Wild KRH, Naito M, Maeda A, Hirano A, Yamada M, Saitoh E, Kondo I, Zeldovich M, von Steinbüchel N. Quality of life after brain injury-overall scale, Japanese version: assessment of reliability and validity. Brain Inj 2024; 38:260-266. [PMID: 38297434 DOI: 10.1080/02699052.2024.2309652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 01/21/2024] [Indexed: 02/02/2024]
Abstract
This study analyzed the linguistic and psychometric validation of the Japanese version of the Quality of Life after Brain Injury-Overall Scale (QOLIBRI-OS) consisting of six items which cover several TBI-relevant domains. We hypothesized that the Japanese version has good reliability, convergent validity, and divergent validity, compared with its long version, the 37-item QOLIBRI. The QOLIBRI-OS Japanese version was forward and back-translated from the English version. In total, 129 individuals participated in this study after experiencing a traumatic brain injury and attending clinics, rehabilitation centers, and support centers in Japan. The structure of the QOLIBRI-OS was investigated by confirmatory factor analyses and compared with the QOLIBRI. Only one factor was extracted, and a model with one underlying factor had a good fit. The QOLIBRI-OS showed good-to-excellent internal consistency and test-retest reliability. The QOLIBRI-OS was positively correlated with the QOLIBRI, Short Form Health Survey-36 version 2, and Glasgow Outcome Scale Extended, and negatively correlated with the Hospital Anxiety and Depression Scale. The results suggest that the QOLIBRI-OS Japanese version is a reliable and valid tool for assessing disease-specific health-related QOL in individuals after traumatic brain injury in Japan.
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De Dios Perez B, Morris RPG, Craven K, Radford KA. Peer mentoring for people with acquired brain injury - a systematic review. Brain Inj 2024; 38:316-329. [PMID: 38318794 DOI: 10.1080/02699052.2024.2310779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 01/23/2024] [Indexed: 02/07/2024]
Abstract
INTRODUCTION Over 100 million people worldwide live with disabilities resulting from an acquired brain injury (ABI). ABI survivors experience cognitive and physical problems and require support to resume an active life. They can benefit from support from someone who has been through the same issues (i.e. peer mentor). This review investigated the effectiveness of peer mentoring for ABI survivors. METHOD Eleven databases, two trial registers, and PROSPERO were searched for published studies. Two reviewers independently screened all titles, abstracts, and full texts, extracted data, and assessed quality. The PRISMA 2020 guidelines were followed to improve transparency in the reporting of the review. RESULTS The search returned 4,094 results; 2,557 records remained after the removal of duplicates and 2,419 were excluded based on titles and abstracts. Of the remaining 138, 12 studies met the inclusion criteria. Five were conducted in the United States, three in Canada, three in the UK, and one in New Zealand. Meta-analysis was inappropriate due to the heterogeneity of study designs. Therefore, a narrative synthesis of the data was undertaken. CONCLUSION Although peer mentoring has the potential to positively influence activity and participation among ABI survivors, further research is needed to understand the extent of the benefits.
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Harrington L. Electronic Health Record Goes on Trial: Negligent Design That Resulted in Brain Damage. AACN Adv Crit Care 2024; 35:10-13. [PMID: 38457616 DOI: 10.4037/aacnacc2024480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
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Denorme F, Frösen J, Jouppila A, Lindgren A, Resendiz-Nieves JC, Manninen H, De Meyer SF, Lassila R. Pretreatment with a dual antiplatelet and anticoagulant (APAC) reduces ischemia-reperfusion injury in a mouse model of temporary middle cerebral artery occlusion-implications for neurovascular procedures. Acta Neurochir (Wien) 2024; 166:137. [PMID: 38485848 PMCID: PMC10940479 DOI: 10.1007/s00701-024-06017-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/14/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Several neurovascular procedures require temporary occlusion of cerebral arteries, leading to ischemia of unpredictable length, occasionally causing brain infarction. Experimental models of cerebral ischemia-reperfusion injury have established that platelet adhesion and coagulation play detrimental roles in reperfusion injury following transient cerebral ischemia. Therefore, in a model of cerebral ischemia-reperfusion injury (IRI), we investigated the therapeutic potential of a dual antiplatelet and anticoagulant (APAC) heparin proteoglycan mimetic which is able to bind to vascular injury sites. METHODS Brain ischemia was induced in mice by transient occlusion of the right middle cerebral artery for 60 min. APAC, unfractionated heparin (UFH) (both at heparin equivalent doses of 0.5 mg/kg), or vehicle was intravenously administered 10 min before or 60 min after the start of ischemia. At 24 h later, mice were scored for their neurological and motor behavior, and brain damage was quantified. RESULTS Both APAC and UFH administered before the onset of ischemia reduced brain injury. APAC and UFH pretreated mice had better neurological and motor functions (p < 0.05 and p < 0.01, respectively) and had significantly reduced cerebral infarct sizes (p < 0.01 and p < 0.001, respectively) at 24 h after transient occlusion compared with vehicle-treated mice. Importantly, no macroscopic bleeding complications were observed in either APAC- or UFH-treated animals. However, when APAC or UFH was administered 60 min after the start of ischemia, the therapeutic effect was lost, but without hemorrhaging either. CONCLUSIONS Pretreatment with APAC or UFH was safe and effective in reducing brain injury in a model of cerebral ischemia induced by transient middle cerebral artery occlusion. Further studies on the use of APAC to limit ischemic injury during temporary occlusion in neurovascular procedures are indicated.
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Armshaw J, Butcher G, Becker A. Gathering Self-Initiated Rat Behavioral Data to Characterize Post-Stroke Deficits. J Vis Exp 2024. [PMID: 38557586 DOI: 10.3791/64967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Abstract
Behavioral testing in rat models is frequently utilized for diverse purposes, including psychological, biomedical, and behavioral research. Many traditional approaches involve individual, one-on-one testing sessions between a single researcher and each animal in an experiment. This setup can be very time consuming for the researcher, and their presence may impact the behavioral data in unwanted ways. Additionally, traditional caging for rat research imposes a lack of enrichment, exercise, and socialization that would normally be typical for the species, and this context may also skew the results of behavioral data. Overcoming these limitations may be worthwhile for several research applications, including the study of acquired brain injury. Here, an example method is presented for automatically training and testing individual rat behavior in a colony cage without the presence of humans. Radio frequency identification can be utilized to tailor sessions to the individual rat. The validation of this system occurred in the example context of measuring skilled forelimb motor performance before and after stroke. Traditional characteristics of post-stroke behavioral impairments and novel measures enabled by the system are measured, including success rate, various aspects of pull force, bout analysis, initiation rate and patterns, session duration, and circadian patterns. These variables can be collected automatically with few limitations; though the apparatus removes experimental control of exposure, timing and practice, the validation produced reasonable consistency in these variables from animal to animal.
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Hu Q, Xu L, Liu X, Wang Y, Yuan J. Adenosine A 2A receptor antagonist KW6002 protects against A53T mutant alpha-synuclein-induced brain damage and neuronal apoptosis in Parkinson's disease mice by restoring autophagic flux. Neurosci Lett 2024; 826:137610. [PMID: 38157926 DOI: 10.1016/j.neulet.2023.137610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Protein misfolding and inclusion body aggregation caused by α-Syn mutations in the brain often cause neurodegeneration and cognitive impairment, among which the A53T point mutation is more common. Inhibition of adenosine A2A receptor (A2AR) can alleviate the pathological symptoms of brain dysfunction caused by A53T-α-Syn protofibrils, but the mechanism of action is still unclear. AIM This studies aimed to investigate the potential therapeutic role of the A2AR inhibitor KW6002 in a mouse model of brain synucleinopathy. METHODS A53T-α-Syn fibre precursor cell nuclear protein was injected into the bilateral prefrontal cortex of mice to establish a synucleinopathy animal model, and the A2AR inhibitor KW6002 (5 mg/kg) was injected intraperitoneally to intervene. RESULT The intracerebral injection of A53T-α-Syn protofibrils triggers the formation of inclusion bodies in the brain, leading to astrocyte activation, an increased number of apoptotic cells, and suppression of autophagic flux. The administration of KW6002 significantly reversed these phenomena. In vitro experiments revealed that A53T-α-Syn protofibrils inhibited HT-22 autophagy in mouse hippocampal neuronal cells, whereas KW6002 increased cellular autophagic flux, upregulated the expression of LAMP2A and Hsc70 proteins and inhibited the expression of SQSTM1 protein. The present study suggests that KW6002 reduces the level of α-Syn phosphorylation by inhibiting A2AR protein, at the same time, enhances the autophagic flux of neuronal cells, resulting in the degradation of A53T-α-Syn protofibrils and thus reducing the neuronal toxicity and apoptosis induced by A53T-α-Syn protofibrils. CONCLUSION KW6002 has a significant protective effect on neuronal injury induced by A53T-α-Syn.
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Lv H, Liu F, Wang Q, Dong Z, Zhang H, Ren P, Li L. Correlation analysis between the amniotic fluid contamination and clinical grading of neonatal hypoxic-ischemic encephalopathy and biomarkers of brain damage. BMC Pediatr 2024; 24:178. [PMID: 38481189 PMCID: PMC10935862 DOI: 10.1186/s12887-024-04663-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 02/21/2024] [Indexed: 03/17/2024] Open
Abstract
BACKGROUND Amniotic fluid contamination (AFC) is a risk factor for neonatal hypoxic ischemic encephalopathy (HIE); however, the correlation between AFC level and the incidence and clinical grading of HIE, in addition to relevant biomarkers of brain damage, have not been assessed. METHODS This single-center observational study included 75 neonates with moderate-to-severe HIE. The neonates with HIE were divided into four subgroups according to the AFC level: normal amniotic fluid with HIE group (NAF-HIE), I°AFC with HIE group (I°AFC-HIE), II°AFC with HIE group (II°AFC-HIE), and III°AFC with HIE group (III°AFC-HIE). The control groups consisted of 35 healthy neonates. The clinical grading of neonatal HIE was performed according to the criteria of Sarnat and Sarnat. Serum tau protein and S100B were detected by enzyme-linked immunosorbent assay kits. Correlations of serum tau protein and S100B were evaluated using the Pearson correlation analysis. RESULTS (1) The incidence of neonatal HIE in the NAF-HIE group was 20 cases (26. 7%), I°AFC-HIE was 13 cases (17.3%), II°AFC-HIE was 10 cases (13.3%), and III°AFC-HIE was 32 cases (42. 7%). The incidence of moderate-to-severe HIE in the I°-III°AFC-HIE groups was 73.3% (55/75). (2) In 44 cases with severe HIE, 26 cases (59.1%) occurred in the III°AFC-HIE group, which had a significantly higher incidence of severe HIE than moderate HIE (p < 0.05). In NAF-HIE and I°AFC-HIE groups, the incidence of moderate HIE was 45.2% and 29.0%, respectively, which was higher than that of severe HIE (X2 = 9.2425, p < 0.05; X2 = 5.0472, p < 0.05, respectively). (3) Serum tau protein and S100B levels in the HIE groups were significantly higher than in the control group (all p < 0.05), and were significantly higher in the III°AFC-HIE group than in the NAF-HIE and I°AFC-HIE groups (all p < 0.05). (4) Serum tau protein and S100B levels in the severe HIE group were significantly higher in the moderate HIE group (all p < 0.05). (5) Serum tau protein and S100B levels were significantly positively correlated (r = 0.7703, p < 0.0001). CONCLUSION Among children with severe HIE, the incidence of III°AFC was higher, and the levels of serum tau protein and S100B were increased. AFC level might be associated with HIE grading.
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Nielsen P, Olsen MH, Willer-Hansen RS, Hauerberg J, Johansen HK, Andersen AB, Knudsen JD, Møller K. Ventriculostomy-associated infection (VAI) in patients with acute brain injury-a retrospective study. Acta Neurochir (Wien) 2024; 166:128. [PMID: 38462573 PMCID: PMC10925569 DOI: 10.1007/s00701-024-06018-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 02/23/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Ventriculostomy-associated infection (VAI) is common after external ventricular drains (EVD) insertion but is difficult to diagnose in patients with acute brain injury. Previously, we proposed a set of criteria for ruling out VAI in traumatic brain injury. This study aimed to validate these criteria. For exploratory purposes, we sought to develop and validate a score for VAI risk assessment in patients with different types of severe acute brain injury. METHODS This retrospective cohort study included adults with acute brain injury who received an EVD and in whom CSF samples were taken over a period of 57 months. As standard non-coated bolt-connected EVDs were used. The predictive performance of biomarkers was analyzed as defined previously. A multivariable regression model was performed with five variables. RESULTS A total of 683 patients with acute brain injury underwent EVD placement and had 1272 CSF samples; 92 (13.5%) patients were categorized as culture-positive VAI, 130 (19%) as culture-negative VAI, and 461 (67.5%) as no VAI. A low CSF WBC/RBC ratio (< 0.037), high CSF/plasma glucose ratio (> 0.6), and low CSF protein (< 0.5g/L) showed a positive predictive value of 0.09 (95%CI, 0.05-0.13). In the multivariable logistic regression model, days to sample (OR 1.09; 95%CI, 1.03-1.16) and CSF WBC/RBC ratio (OR 34.86; 95%CI, 3.94-683.15) were found to predict VAI. CONCLUSION In patients with acute brain injury and an EVD, our proposed combined cut-off for ruling out VAI performed satisfactorily. Days to sample and CSF WBC/RBC ratio were found independent predictors for VAI in the multivariable logistic regression model.
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Greenslade KJ, Bogart E, Gyory J, Jaskolka S, Ramage AE. Story Grammar Analyses Capture Discourse Improvement in the First 2 Years Following a Severe Traumatic Brain Injury. AMERICAN JOURNAL OF SPEECH-LANGUAGE PATHOLOGY 2024; 33:1004-1020. [PMID: 38354104 PMCID: PMC11001193 DOI: 10.1044/2023_ajslp-23-00269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 11/03/2023] [Accepted: 12/19/2023] [Indexed: 02/16/2024]
Abstract
PURPOSE Narration within a story grammar framework requires speakers to organize characters and events logically. Despite abundant research characterizing narrative deficits following a traumatic brain injury (TBI), the evolution of narrative story grammar over the first 2 years post-TBI has rarely been explored. This study analyzed story grammar in complex narratives of adults with and without severe TBI to (a) examine between-group differences and (b) investigate longitudinal changes over the first 2 years post-TBI. METHOD Story grammar analyses of Cinderella narratives from 57 participants with TBI and 57 participants with no brain injury yielded measures of productivity (total number of episodes, total number of story grammar elements), elaboration (total number of elaborated-complete episodes, mean number of episodic elements per episode), and completeness (total number of incomplete episodes). Mann-Whitney U tests compared measures across groups; generalized estimating equation (GEE) models identified predictors of change, including recovery time (3, 6, 9, 12, and 24 months post-TBI) and demographic/injury-related characteristics. RESULTS Between-group differences were statistically significant for all productivity and elaboration measures at 3, 6, and 9 months post-TBI; one productivity measure and one elaboration measure at 12 months; and none of the measures at 24 months. GEE models showed significant improvements in all productivity and elaboration measures over the first 24 months post-TBI, with educational attainment and duration of posttraumatic amnesia affecting recovery. Incomplete episodes only showed between-group differences at 12 months and did not capture recovery. CONCLUSION Productivity and elaboration are key story grammar variables that (a) differentiate complex narration in individuals with and without severe TBI and (b) capture narrative improvements over the first 2 years post-TBI. SUPPLEMENTAL MATERIAL https://doi.org/10.23641/asha.25148999.
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Hong X, Deng Q, Zhao C, Zhang Y, Wu G. Hispolon inhibits neuronal ferroptosis by promoting the expression of Nrf-2. Neuroreport 2024; 35:242-249. [PMID: 38305125 DOI: 10.1097/wnr.0000000000001996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Research has shown that neuronal ferroptosis is associated with various central nervous system diseases, including Parkinson's disease, acute brain injury, and spinal cord injury. Inhibiting neuronal ferroptosis can greatly alleviate the progression of these diseases. However, there is currently a lack of effective drugs to inhibit neuronal ferroptosis. In this study, we pretreated neuronal cells with Hispolon and subsequently induced a neuronal ferroptosis model using Erastin. We further assessed the changes in the protein expression levels of SLC7A11, GPX4, ACSL4, Nrf-2, and HO-1 using Western blot and immunofluorescence techniques. Additionally, we measured the intracellular levels of Fe2+, GSH, and MDA using relevant assay kits. The research findings revealed that after Hispolon treatment, the expression of the pro-ferroptosis protein ACSL4 decreased, while the expression of the ferroptosis-regulating proteins GPX4 and SLC7A11 increased. Moreover, the use of an Nrf-2-specific inhibitor was able to reverse the effects of Hispolon as mentioned above. In this study, we discovered that Hispolon can promote the expression of Nrf-2 and inhibit the occurrence of neuronal ferroptosis induced by Erastin.
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Nijman M, van der Meeren LE, Nikkels PGJ, Stegeman R, Breur JMPJ, Jansen NJG, ter Heide H, Steenhuis TJ, de Heus R, Bekker MN, Claessens NHP, Benders MJNL. Placental Pathology Contributes to Impaired Volumetric Brain Development in Neonates With Congenital Heart Disease. J Am Heart Assoc 2024; 13:e033189. [PMID: 38420785 PMCID: PMC10944035 DOI: 10.1161/jaha.123.033189] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/01/2023] [Indexed: 03/02/2024]
Abstract
BACKGROUND Neonates with congenital heart disease are at risk for impaired brain development in utero, predisposing children to postnatal brain injury and adverse long-term neurodevelopmental outcomes. Given the vital role of the placenta in fetal growth, we assessed the incidence of placental pathology in fetal congenital heart disease and explored its association with total and regional brain volumes, gyrification, and brain injury after birth. METHODS AND RESULTS Placentas from 96 term singleton pregnancies with severe fetal congenital heart disease were prospectively analyzed for macroscopic and microscopic pathology. We applied a placental pathology severity score to relate placental abnormalities to neurological outcome. Postnatal, presurgical magnetic resonance imaging was used to analyze brain volumes, gyrification, and brain injuries. Placental analyses revealed the following abnormalities: maternal vascular malperfusion lesions in 46%, nucleated red blood cells in 37%, chronic inflammatory lesions in 35%, delayed maturation in 30%, and placental weight below the 10th percentile in 28%. Severity of placental pathology was negatively correlated with cortical gray matter, deep gray matter, brainstem, cerebellar, and total brain volumes (r=-0.25 to -0.31, all P<0.05). When correcting for postmenstrual age at magnetic resonance imaging in linear regression, this association remained significant for cortical gray matter, cerebellar, and total brain volume (adjusted R2=0.25-0.47, all P<0.05). CONCLUSIONS Placental pathology occurs frequently in neonates with severe congenital heart disease and may contribute to impaired brain development, indicated by the association between placental pathology severity and reductions in postnatal cortical, cerebellar, and total brain volumes.
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[Chinese expert consensus on cerebral monitoring in patients with extracorporeal membrane oxygenation]. ZHONGHUA YI XUE ZA ZHI 2024; 104:662-673. [PMID: 38418165 DOI: 10.3760/cma.j.cn112137-20231009-00686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
With the significant increase in the use of extracorporeal membrane oxygenation in patients with severe respiratory failure, cardiogenic shock, and cardiopulmonary resuscitation, complications related to extracorporeal membrane oxygenation are increasingly being taken seriously. Cerebral injury is one of the most serious complications during extracorporeal membrane oxygenation treatment, and is an important factor affecting the hospital mortality rate and long-term quality of life. Due to the use of analgesics, sedatives, and muscle relaxants interfering with neurological physical examination results, cerebral injury that occurs during extracorporeal membrane oxygenation therapy is not easily detected in a timely manner. Therefore, bedside cerebral monitoring has important value in quickly detecting cerebral injury in patients with extracorporeal membrane oxygenation and providing early intervention guidance. Therefore, Extracorporeal Life Support Professional Committee of Chinese Medical Doctor Association organized relevant experts across the country to develop the"Chinese expert consensus on cerebral monitoring in patients with extracorporeal membrane oxygenation", this expert consensus is based on the pathological and physiological mechanisms of cerebral injury in patients with extracorporeal membrane oxygenation. It is based on the current application status of cerebral monitoring technologies such as neurological physical examination, plasma brain injury biomarkers, brain imaging, intracranial pressure, cerebral blood flow, brain oxygen, electroencephalogram, and somatosensory evoked potential. Combining the special clinical application scenarios of extracorporeal membrane oxygenation and integrating the latest evidence-based medical evidence, we have formed 15 consensus recommendations which can be referenced by professionals in critical care medicine, neurology, cardiovascular disease, respiratory and critical care, emergency medicine, and other fields. Given the particularity, complexity, and individual differences of critically ill patients, the recommendations formed by this expert consensus need to implement personalized strategies.
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Weaver JA, Richard AK, Press D, Gupta K, Schmid AA, Stephens JA. Participants With Acquired Brain Injury Realized They "Could Still Do Things" After a Yoga Intervention: A Qualitative Descriptive Study. Am J Occup Ther 2024; 78:7802180150. [PMID: 38345946 PMCID: PMC11017735 DOI: 10.5014/ajot.2024.050409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024] Open
Abstract
IMPORTANCE Occupational therapy practitioners use yoga in practice to achieve holistic care, and the American Occupational Therapy Association has provided guidance on the use of yoga in occupational therapy. For people with acquired brain injury (ABI), however, it is unknown whether yoga affects occupational performance. OBJECTIVE To explore the perceived impact of an adapted yoga intervention on occupational performance using the Occupational Therapy Practice Framework: Domain and Process (4th ed.; OTPF-4) for participants with ABI. DESIGN Qualitative descriptive study using virtual, semistructured interviews. An inductive, holistic, open-coding process, followed by a deductive process to map open codes to the OTPF-4. PARTICIPANTS Nine individuals with ABI were recruited from a yoga intervention study. RESULTS The theme generated from the data-"Yoga participants with ABI realized that they could still do quite a bit"-was supported by two major categories from the OTPF-4: Occupations and Performance Skills. Participants described improvements in their functional performance (i.e., motor skills, process skills) and how these factors were synergistically connected to their occupational performance (i.e., self-care, leisure). CONCLUSIONS AND RELEVANCE This study provides novel insight into how functional performance improved so participants could "still do things," such as engaging in occupations. When participants described improved performance skills, they simultaneously described re-engagement with their meaningful occupations. Participants also perceived an improvement in their mind-body connection, which should be further explored in future studies. This study generated original findings about participants' perceptions of an adapted yoga intervention as they relate to the OTPF-4. Plain-Language Summary: This study reports individuals' perceptions of their re-engagement with occupations and changes in occupational performance skills after participating in an adaptive yoga intervention. We highlight the distinct contribution that adaptive yoga-an intervention modality that can be used by occupational therapy practitioners-may have, using the OTPF-4 to connect the participants' perceptions about their improvements in occupational performance.
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Jacobwitz M, Irving SY, Moriarty H, Yost J, Vossough A, Licht DJ, Lynch JM. Predictors of the inability to achieve full oral feeding in postoperative infants with CHD. Cardiol Young 2024; 34:581-587. [PMID: 37608743 DOI: 10.1017/s104795112300313x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
OBJECTIVES Poor oral feeding is a known contributor to growth challenges in neonates with complex CHD who require early surgery. Almost 60% of these infants do not achieve full oral feeding by hospital discharge. This study's objective was to identify predictors of the inability to achieve full oral feeding by discharge in neonates with complex CHD following surgical intervention with cardiopulmonary bypass. STUDY DESIGN A retrospective analysis of a prospective study of 192 full-term neonates with complex CHD was performed. A stepwise selection logistic regression model was developed to predict oral feeding status at hospital discharge. Univariate subgroup analysis was performed with groups determined based on a CHD classification system. RESULTS 58% of neonates (112/192) failed to achieve full oral feeding by hospital discharge. A logistic regression model identified duration of deep hypothermic circulatory arrest and reintubation as predictors of the inability to achieve full oral feeding. Among neonates who achieved full oral feeding by discharge (42%), only 7.5% did so after postoperative day 10. Brain maturation, brain injury, and preoperative oral feeding were not predictors of full postoperative oral feeding. CONCLUSIONS Many infants with CHD fail to achieve full oral feeding by time of hospital discharge. Longer duration of deep hypothermic circulatory arrest and increased number of intubations were predictive of poor feeding after surgery. Prolonging hospitalisation solely to achieve full oral feeding after postoperative day ten is of limited utility; earlier discharge should be promoted to avoid negative impacts on neonatal neurodevelopment as unintended consequences of lengthy hospitalisations.
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Juárez-Belaúnde A, Orcajo E, Lejarreta S, Davila-Pérez P, León N, Oliviero A. Fatigue in patients with acquired brain damage. Neurologia 2024; 39:178-189. [PMID: 38278413 DOI: 10.1016/j.nrleng.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 05/22/2021] [Indexed: 01/28/2024] Open
Abstract
Fatigue is a complex, multidimensional syndrome that is prevalent in patients with acquired brain damage and has a negative impact on the neurorehabilitation process. It presents from early stages after the injury, and may persist over time, regardless of whether sequelae have resolved. Fatigue is conditioned by upper neuronal circuits, and is defined as an abnormal perception of overexertion. Its prevalence ranges from 29% to 77% after stroke, from 18% to 75% after traumatic brain injury, and from 47% to 97% after brain tumours. Fatigue is associated with factors including female sex, advanced age, dysfunctional families, history of specific health conditions, functional status (eg, fatigue prior to injury), comorbidities, mood, secondary disability, and the use of certain drugs. Assessment of fatigue is fundamentally based on such scales as the Fatigue Severity Scale (FSS). Advances have recently been made in imaging techniques for its diagnosis, such as in functional MRI. Regarding treatment, no specific pharmacological treatment currently exists; however, positive results have been reported for some conventional neurorehabilitation therapies, such as bright light therapy, neurofeedback, electrical stimulation, and transcranial magnetic stimulation. This review aims to assist neurorehabilitation professionals to recognise modifiable factors associated with fatigue and to describe the treatments available to reduce its negative effect on patients.
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Golime R, Singh N, Rajput A, Dp N, Lodhi VK. Chronic sub lethal nerve agent (Soman) exposure induced long-term neurobehavioral, histological, and biochemical alterations in rats. J Chem Neuroanat 2024; 136:102388. [PMID: 38182038 DOI: 10.1016/j.jchemneu.2024.102388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/01/2024] [Accepted: 01/01/2024] [Indexed: 01/07/2024]
Abstract
Organophosphorus (OP) pesticides and insecticides are used in agriculture and other industries can also cause adverse effects through environmental exposures in the people working in agricultural and pesticide industries. OP nerve agent exposures have been associated with delayed neurotoxic effects including sleep disorders, cognitive malfunctions, and brain damage in Gulf War victims, and Japanese victims of terrorist attacks with nerve agents. However, the mechanisms behind such prolonged adverse effects after chronic OP nerve agent's exposures in survivors are not well understood. In the present study, male Wistar rats were subcutaneously exposed to nerve agent soman (0.25XLD50) for 21 consecutive days to evaluate the neurobehavioral, neuropathological and biochemical alterations (oxidative stress and antioxidants levels). Neurobehavioral studies using Elevated Plus Maze (EPM), T-Maze, and rotarod tests revealed that chronic soman exposure produced alterations in behavioral functions including increased anxiety and reduction in working memory and neuromuscular strength. Biochemical studies showed that antioxidants enzyme (glutathione peroxidase (GPx), catalase (CAT), and superoxide dismutase (SOD) levels were reduced and oxidative stress (reduced glutathione (GSH) and lipid peroxidation levels (malondialdehyde (MDA)) were significantly increased in brain at 30 days in soman exposed rats as compared to control rats. Neuroselective fluorojade-c stain was used to examine the brain damage after chronic soman exposure. Results demonstrated that chronic soman exposure induced neurodegeneration as brain damage was detected at 30- and 90-days post exposure. The present study results suggest that chronic nerve agent exposures even at low doses may produce long-term adverse effects like neurobehavioral deficits in rats.
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Smith CW, Malhotra AK, Hammill C, Beaton D, Harrington EM, He Y, Shakil H, McFarlan A, Jones B, Lin HM, Mathieu F, Nathens AB, Ackery AD, Mok G, Mamdani M, Mathur S, Wilson JR, Moreland R, Colak E, Witiw CD. Vision Transformer-based Decision Support for Neurosurgical Intervention in Acute Traumatic Brain Injury: Automated Surgical Intervention Support Tool. Radiol Artif Intell 2024; 6:e230088. [PMID: 38197796 PMCID: PMC10982820 DOI: 10.1148/ryai.230088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 11/15/2023] [Accepted: 12/18/2023] [Indexed: 01/11/2024]
Abstract
Purpose To develop an automated triage tool to predict neurosurgical intervention for patients with traumatic brain injury (TBI). Materials and Methods A provincial trauma registry was reviewed to retrospectively identify patients with TBI from 2005 to 2022 treated at a specialized Canadian trauma center. Model training, validation, and testing were performed using head CT scans with binary reference standard patient-level labels corresponding to whether the patient received neurosurgical intervention. Performance and accuracy of the model, the Automated Surgical Intervention Support Tool for TBI (ASIST-TBI), were also assessed using a held-out consecutive test set of all patients with TBI presenting to the center between March 2021 and September 2022. Results Head CT scans from 2806 patients with TBI (mean age, 57 years ± 22 [SD]; 1955 [70%] men) were acquired between 2005 and 2021 and used for training, validation, and testing. Consecutive scans from an additional 612 patients (mean age, 61 years ± 22; 443 [72%] men) were used to assess the performance of ASIST-TBI. There was accurate prediction of neurosurgical intervention with an area under the receiver operating characteristic curve (AUC) of 0.92 (95% CI: 0.88, 0.94), accuracy of 87% (491 of 562), sensitivity of 87% (196 of 225), and specificity of 88% (295 of 337) on the test dataset. Performance on the held-out test dataset remained robust with an AUC of 0.89 (95% CI: 0.85, 0.91), accuracy of 84% (517 of 612), sensitivity of 85% (199 of 235), and specificity of 84% (318 of 377). Conclusion A novel deep learning model was developed that could accurately predict the requirement for neurosurgical intervention using acute TBI CT scans. Keywords: CT, Brain/Brain Stem, Surgery, Trauma, Prognosis, Classification, Application Domain, Traumatic Brain Injury, Triage, Machine Learning, Decision Support Supplemental material is available for this article. © RSNA, 2024 See also commentary by Haller in this issue.
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Saha E, Shimochi S, Keller T, Eskola O, López-Picón F, Rajander J, Löyttyniemi E, Forsback S, Solin O, Grönroos TJ, Parikka V. Evaluation of PET imaging as a tool for detecting neonatal hypoxic-ischemic encephalopathy in a preclinical animal model. Exp Neurol 2024; 373:114673. [PMID: 38163475 DOI: 10.1016/j.expneurol.2023.114673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/09/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
Hypoxic-ischemic encephalopathy due to insufficient oxygen delivery to brain tissue is a leading cause of death or severe morbidity in neonates. The early recognition of the most severely affected individuals remains a clinical challenge. We hypothesized that hypoxic-ischemic injury can be detected using PET radiotracers for hypoxia ([18F]EF5), glucose metabolism ([18F]FDG), and inflammation ([18F]F-DPA). METHODS A preclinical model of neonatal hypoxic-ischemic brain injury was made in 9-d-old rat pups by permanent ligation of the left common carotid artery followed by hypoxia (8% oxygen and 92% nitrogen) for 120 min. In vivo PET imaging was performed immediately after injury induction or at different timepoints up to 21 d later. After imaging, ex vivo brain autoradiography was performed. Brain sections were stained with cresyl violet to evaluate the extent of the brain injury and to correlate it with [18F]FDG uptake. RESULTS PET imaging revealed that all three of the radiotracers tested had significant uptake in the injured brain hemisphere. Ex vivo autoradiography revealed high [18F]EF5 uptake in the hypoxic hemisphere immediately after the injury (P < 0.0001), decreasing to baseline even 1 d postinjury. [18F]FDG uptake was highest in the injured hemisphere on the day of injury (P < 0.0001), whereas [18F]F-DPA uptake was evident after 4 d (P = 0.029), peaking 7 d postinjury (P < 0.0001), and remained significant 21 d after the injury. Targeted evaluation demonstrated that [18F]FDG uptake measured by in vivo imaging 1 d postinjury correlated positively with the brain volume loss detected 21 d later (r = 0.72, P = 0.028). CONCLUSION Neonatal hypoxic-ischemic brain injury can be detected using PET imaging. Different types of radiotracers illustrate distinct phases of hypoxic brain damage. PET may be a new useful technique, worthy of being explored for clinical use, to predict and evaluate the course of the injury.
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Beucler N. Monitoring patients with severe traumatic brain injury. Lancet Neurol 2024; 23:231-232. [PMID: 38365370 DOI: 10.1016/s1474-4422(24)00004-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 01/08/2024] [Indexed: 02/18/2024]
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Payen JF, Gauss T, Vilotitch A, Bouzat P. Monitoring patients with severe traumatic brain injury - Authors' reply. Lancet Neurol 2024; 23:232-233. [PMID: 38365372 DOI: 10.1016/s1474-4422(24)00030-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 02/18/2024]
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Cepparulo P, Brancaccio P, Sirabella R, Anzilotti S, Guida N, Laudati G, Valsecchi V, Vinciguerra A, Viscardi V, D'Esposito L, Formisano L, Annunziato L, Pignataro G, Cuomo O. miR135a administration ameliorates brain ischemic damage by preventing TRPM7 activation during brain ischemia. CNS Neurosci Ther 2024; 30:e14448. [PMID: 37718696 PMCID: PMC10916440 DOI: 10.1111/cns.14448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/13/2023] [Accepted: 08/16/2023] [Indexed: 09/19/2023] Open
Abstract
BACKGROUND miRNA-based strategies have recently emerged as a promising therapeutic approach in several neurodegenerative diseases. Unregulated cation influx is implicated in several cellular mechanisms underlying neural cell death during ischemia. The brain constitutively active isoform of transient receptor potential melastatin 7 (TRPM7) represents a glutamate excitotoxicity-independent pathway that significantly contributes to the pathological Ca2+ overload during ischemia. AIMS In the light of these premises, inhibition of TRPM7 may be a reasonable strategy to reduce ischemic injury. Since TRPM7 is a putative target of miRNA135a, the aim of the present paper was to evaluate the role played by miRNA135a in cerebral ischemia. Therefore, the specific objectives of the present paper were: (1) to evaluate miR135a expression in temporoparietal cortex of ischemic rats; (2) to investigate the effect of the intracerebroventricular (icv) infusion of miR135a on ischemic damage and neurological functions; and (3) to verify whether miR135a effects may be mediated by an alteration of TRPM7 expression. METHODS miR135a expression was evaluated by RT- PCR and FISH assay in temporoparietal cortex of ischemic rats. Ischemic volume and neurological functions were determined in rats subjected to transient middle cerebral artery occlusion (tMCAo) after miR135a intracerebroventricular perfusion. Target analysis was performed by Western blot. RESULTS Our results demonstrated that, in brain cortex, 72 h after ischemia, miR135a expression increased, while TRPM7 expression was parallelly downregulated. Interestingly, miR135a icv perfusion strongly ameliorated the ischemic damage and improved neurological functions, and downregulated TRPM7 protein levels. CONCLUSIONS The early prevention of TRPM7 activation is protective during brain ischemia.
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Jiang Y. Letter to the Editor Regarding "C-Reactive Protein/Albumin Ratio Is Associated with Mortality in Patients with Moderate to Severe Traumatic Brain Injury". World Neurosurg 2024; 183:266. [PMID: 38468170 DOI: 10.1016/j.wneu.2023.12.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 03/13/2024]
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Yue AC, Zhou XD, Song HP, Liu XH, Bi MJ, Han W, Li Q. Effect and molecular mechanism of Sulforaphane alleviates brain damage caused by acute carbon monoxide poisoning:Network pharmacology analysis, molecular docking, and experimental evidence. ENVIRONMENTAL TOXICOLOGY 2024; 39:1140-1162. [PMID: 37860845 DOI: 10.1002/tox.24000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 09/24/2023] [Accepted: 10/07/2023] [Indexed: 10/21/2023]
Abstract
Sulforaphane (SFN) has attracted much attention due to its ability on antioxidant, anti-inflammatory, and anti-apoptotic properties, while its functional targets and underlying mechanism of action on brain injury caused by acute carbon monoxide poisoning (ACOP) have not been fully elucidated. Herein, we used a systematic network pharmacology approach to explore the mechanism of SFN in the treatment of brain damage after ACOP. In this study, the results of network pharmacology demonstrated that there were a total of 81 effective target genes of SFN and 36 drug-disease targets, which were strongly in connection with autophagy-animal signaling pathway, drug metabolism, and transcription disorders in cancer. Upon the further biological function and KEGG signaling pathway enrichment analysis, a large number of them were involved in neuronal death, reactive oxygen metabolic processes and immune functions. Moreover, based on the results of bioinformatics prediction associated with multiple potential targets and pathways, the AMP-activated protein kinase (AMPK) signaling pathway was selected to elucidate the molecular mechanism of SFN in the treatment of brain injury caused by ACOP. The following molecular docking analysis also confirmed that SFN can bind to AMPKα well through chemical bonds. In addition, an animal model of ACOP was established by exposure to carbon monoxide in a hyperbaric oxygen chamber to verify the predicted results of network pharmacology. We found that the mitochondrial ultrastructure of neurons in rats with ACOP was seriously damaged, and apoptotic cells increased significantly. The histopathological changes were obviously alleviated, apoptosis of cortical neurons was inhibited, and the number of Nissl bodies was increased in the SFN group as compared with the ACOP group (p < .05). Besides, the administration of SFN could increase the expressions of phosphorylated P-AMPK and MFN2 proteins and decrease the levels of DRP1, Caspase3, and Casapase9 proteins in the brain tissue of ACOP rats. These findings suggest that network pharmacology is a useful tool for traditional Chinese medicine (TCM) research, SFN can effectively inhibit apoptosis, protect cortical neurons from the toxicity of carbon monoxide through activating the AMPK pathway and may become a potential therapeutic strategy for brain injury after ACOP.
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Kim JH, Im JG, Park SH. Measurement of changes in cerebrospinal fluid pulsation after traumatic brain injury using echo-planar imaging-based functional MRI. NMR IN BIOMEDICINE 2024; 37:e5061. [PMID: 37839870 DOI: 10.1002/nbm.5061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/17/2023]
Abstract
Traumatic brain injury (TBI) is a major public health concern worldwide, with a high incidence and a significant impact on morbidity and mortality. The alteration of cerebrospinal fluid (CSF) dynamics after TBI is a well-known phenomenon; however, the underlying mechanisms and their implications for cognitive function are not fully understood. In this study, we propose a new approach to studying the alteration of CSF dynamics in TBI patients. Our approach involves using conventional echo-planar imaging-based functional MRI with no additional scan, allowing for simultaneous assessment of functional CSF dynamics and blood oxygen level-dependent-based functional brain activities. We utilized two previously suggested indices of (i) CSFpulse, and (ii) correlation between global brain activity and CSF inflow. Using CSFpulse, we demonstrated a significant decrease in CSF pulsation following TBI (p < 0.05), which was consistent with previous studies. Furthermore, we confirmed that the decrease in CSF pulsation was most prominent in the early months after TBI, which could be explained by ependymal ciliary loss, intracranial pressure increment, or aquaporin-4 dysregulation. We also observed a decreasing trend in the correlation between global brain activity and CSF inflow in TBI patients (p < 0.05). Our findings suggest that the decreased CSF pulsation after TBI could lead to the accumulation of toxic substances in the brain and an adverse effect on brain function. Further longitudinal studies with larger sample sizes, TBI biomarker data, and various demographic information are needed to investigate the association between cognitive decline and CSF dynamics after TBI. Overall, this study sheds light on the potential role of altered CSF dynamics in TBI-induced neurologic symptoms and may contribute to the development of novel therapeutic interventions.
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Gao J, Yao M, Zhang Y, Jiang Y, Liu J. Panax notoginseng saponins stimulates the differentiation and neurite development of C17.2 neural stem cells against OGD/R injuries via mTOR signaling. Biomed Pharmacother 2024; 172:116260. [PMID: 38382327 DOI: 10.1016/j.biopha.2024.116260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/23/2024] Open
Abstract
Ischemic stroke remains a major disease worldwide, and most stroke patients often suffer from serious sequelae. Endogenous neurogenesis matters in the repair and regeneration of impaired neural cells after stroke. We have previously reported in vivo that PNS could strengthen the proliferation and differentiation of neural stem cells (NSCs), modulate synaptic plasticity and protect against ischemic brain injuries in cerebral ischemia rats, which could be attributed to mTOR signaling activation. Next, to obtain further insights into the function mechanism of PNS, we evaluated the direct influence of PNS on the survival, differentiation and synaptic development of C17.2 NSCs in vitro. The oxygen glucose deprivation/reperfusion (OGD/R) model was established to mimic ischemic brain injuries. We found that after OGD/R injuries, PNS improved the survival of C17.2 cells. Moreover, PNS enhanced the differentiation of C17.2 cells into neurons and astrocytes, and further promoted synaptic plasticity by significantly increasing the expressions of synapse-related proteins BDNF, SYP and PSD95. Meanwhile, PNS markedly activated the Akt/mTOR/p70S6K pathway. Notably, the mTOR inhibitor rapamycin pretreatment could reverse these desirable results. In conclusion, PNS possessed neural differentiation-inducing properties in mouse C17.2 NSCs after OGD/R injuries, and Akt/mTOR/p70S6K signaling pathway was proved to be involved in the differentiation and synaptic development of C17.2 cells induced by PNS treatment under the in vitro ischemic condition. Our findings offer new insights into the mechanisms that PNS regulate neural plasticity and repair triggered by NSCs, and highlight the potential of mTOR signaling as a therapeutic target for neural restoration after ischemic stroke.
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