Magnetic resonance imaging scanning susceptibility weighted imaging sequences in the diagnosis and prognostic evaluation of neonatal hypoxic-ischemic encephalopathy

BACKGROUND Magnetic resonance imaging(MRI)scanning with susceptibility weighted imaging(SWI)sequences plays a significant role in the diagnosis and prognostic evaluation of neonatal hypoxic-ischemic encephalopathy(HIE).AIM To observe the role of MRI multi-parameter quantitative indexes in the diagnosis of neonatal HIE.METHODS The imaging data from 23 cases of neonatal HIE admitted to the Imaging Department of Ganyu District People's Hospital of Lianyungang City and 23 neonates without HIE admitted during the same period were analyzed retrospectively from August,2021 to December,2023.The results of clinical judgment were compared with the results of computed tomography(CT)and MRI examinations.RESULTS The degree of cerebral edema(more than moderate),the number of damaged brain regions(>2),the number of cerebral hemorrhages(>2),and the percentage of small venous dilatation detected were higher in MRI than in CT examination,and the differences were statistically significant(P<0.05).The total area of the largest region of cerebral damage and of cerebral hemorrhage observed by MRI examination were significantly larger than those of CT examination(P<0.01).Multiparametric quantitative MRI combined with diffusion weighted imaging and SWI had higher sensitivity and accuracy than CT diagnosis,and the difference was statistically significant(P<0.05).The difference in the specificity of the two modes of diagnosis was not significant(P>0.05).CONCLUSION The use of MRI multi-parameter quantitative indexes can accurately diagnose and evaluate neonatal HIE.

Transplantation of human placental chorionic plate-derived mesenchymal stem cells for repair of neurological damage in neonatal hypoxic-ischemic encephalopathy

Neonatal hypoxic-ischemic encephalopathy is often associated with permanent cerebral palsy,neurosensory impairments,and cognitive deficits,and there is no effective treatment for complications related to hypoxic-ischemic encephalopathy.The therapeutic potential of human placental chorionic plate-derived mesenchymal stem cells for various diseases has been explored.However,the potential use of human placental chorionic plate-derived mesenchymal stem cells for the treatment of neonatal hypoxic-ischemic encephalopathy has not yet been investigated.In this study,we injected human placental chorionic plate-derived mesenchymal stem cells into the lateral ventricle of a neonatal hypoxic-ischemic encephalopathy rat model and observed significant improvements in both cognitive and motor function.Protein chip analysis showed that interleukin-3 expression was significantly elevated in neonatal hypoxic-ischemic encephalopathy model rats.Following transplantation of human placental chorionic plate-derived mesenchymal stem cells,interleukin-3 expression was downregulated.To further investigate the role of interleukin-3 in neonatal hypoxic-ischemic encephalopathy,we established an in vitro SH-SY5Y cell model of hypoxic-ischemic injury through oxygen-glucose deprivation and silenced interleukin-3 expression using small interfering RNA.We found that the activity and proliferation of SH-SY5Y cells subjected to oxygen-glucose deprivation were further suppressed by interleukin-3 knockdown.Furthermore,interleukin-3 knockout exacerbated neuronal damage and cognitive and motor function impairment in rat models of hypoxic-ischemic encephalopathy.The findings suggest that transplantation of hpcMSCs ameliorated behavioral impairments in a rat model of hypoxic-ischemic encephalopathy,and this effect was mediated by interleukin-3-dependent neurological function.

Observation on the Effect of Parental Participation in Nursing Under the IMCHB Model in Neonatal Hypoxic-Ischemic Encephalopathy

Objective:To investigate the clinical effects of parental participation in nursing under the Interaction Model of Client Health Behavior(IMCHB)model in neonatal hypoxic-ischemic encephalopathy(HIE).Methods:The First Affiliated Hospital of Gannan Medical University included 46 newborns with HIE admitted from October 2021 to October 2023 into the study population.They were divided into a control group and an observation group according to the random number table method,with the control group adopting routine nursing,and the observation group implementing parental participation in nursing under the IMCHB model.The indicators of physical,intellectual,and psychomotor development of the two groups were compared before and after nursing.Results:The physical,intellectual,and psychomotor development of the observation group was higher than that of the control group after 3 months of nursing,and the difference was statistically significant(P<0.05).Conclusion:The implementation of the IMCHB model of parental participation in the clinical care of HIE neonates can further promote their physical,intellectual,and psychomotor development.

Meta-analysis evaluation of the treatment of neonatal hypoxic-ischemic encephalopathy with ganglioside

The efficacy and safety of ganglioside in the treatment of neonates who suffer from hypoxic-ischemic encephalopathy(HIE)needs to be fully evaluated.We searched the following databases:PubMed,ScienceDirect,LISTA,CNKI,Chinese biomedical literature database and Wanfang digital journals of full-text database to determine the inclusion and exclusion criteria of papers and a total of 12 papers were included after quality evaluation.Then we conducted the meta-analysis with RevMan5.0 software.The results showed that compared with the control group,the abnormal rate declined in the ganglioside-treated group(relative risk(RR)=0.27,95%confidence interval(CI)=0.05-1.96).NBNA records of the 7,10-14d neonates were improved effectively:RR(95%CI)were 2.28(0.86-3.42)and 2.53(1.04-2.92)respectively.Neural system sequelae incidence was reduced significantly:RR(95%CI)=0.35:(0.15-0.79).Ganglioside treatment could effectively reduce the abnormality rate of head size,improve the neurological score,reduce the incidence of neurological sequelae,and significantly prompt clinical recovery for neonates with HIE.

Grading Method for Hypoxic-Ischemic Encephalopathy Based on Neonatal EEG

The grading of hypoxic-ischemic encephalopathy(HIE)contributes to the clinical decision making for neonates with HIE.In this paper,an automated grading method based on electroencephalogram(EEG)data is proposed to describe the severity of HIE infants,namely mild asphyxia,moderate asphyxia and severe asphyxia.The automated grading method is based on a multi-class support vector machine(SVM)classifier,and the input features of SVM classifier include long-term features which are extracted by decomposing the EEG data into different 64 s epoch data and short-term features which are extracted by segmenting the 64 s epoch data into 8 s epoch data with 4 s overlap.Of note,the correlation coefficient and asymmetry extracted in this paper have obvious discriminating capability in HIE infants classification.The experimental results show that the proposed method can achieve the classification accuracy of 78.3%,75.8%and 87.0%of the mild asphyxia group,moderate asphyxia group and severe asphyxia group,respectively.Moreover,the overall accuracy and kappa used to evaluate the performance of the proposed method can reach 79.5%and 0.69,respectively.

Hyperbaric oxygen treatment promotes neural stem cell proliferation in the subventricular zone of neonatal rats with hypoxic-ischemic brain damage

Hyperbaric oxygen therapy for the treatment of neonatal hypoxic-ischemic brain damage has been used clinically for many years, but its effectiveness remains controversial. In addition, the mechanism of this potential neuroprotective effect remains unclear. This study aimed to investigate the influence of hyperbaric oxygen on the proliferation of neural stem cells in the subventricular zone of neonatal Sprague-Dawley rats （7 days old） subjected to hypoxic-ischemic brain damage. Six hours after modeling, rats were treated with hyperbaric oxygen once daily for 7 days. Immunohistochemistry revealed that the number of 5-bromo-2＇-deoxyuridine positive and nestin positive cells in the subventricular zone of neonatal rats increased at day 3 after hypoxic-ischemic brain damage and peaked at day 5. After hyperbaric oxygen treatment, the number of 5-bromo-2＇- deoxyuddine positive and nestin positive cells began to increase at day 1, and was significantly higher than that in normal rats and model rats until day 21. Hematoxylin-eosin staining showed that hyperbaric oxygen treatment could attenuate pathological changes to brain tissue in neonatal rats, and reduce the number of degenerating and necrotic nerve cells. Our experimental findings indicate that hyperbaric oxygen treatment enhances the proliferation of neural stem cells in the subventricular zone of neonatal rats with hypoxic-ischemic brain damage, and has therapeutic potential for promoting neurological recovery following brain injury.

Applications of advanced signal processing and machine learning in the neonatal hypoxic-ischemic electroencephalography

Perinatal hypoxic-ischemic-encephalopathy significantly contributes to neonatal death and life-long disability such as cerebral palsy. Advances in signal processing and machine learning have provided the research community with an opportunity to develop automated real-time identification techniques to detect the signs of hypoxic-ischemic-encephalopathy in larger electroencephalography/amplitude-integrated electroencephalography data sets more easily. This review details the recent achievements, performed by a number of prominent research groups across the world, in the automatic identification and classification of hypoxic-ischemic epileptiform neonatal seizures using advanced signal processing and machine learning techniques. This review also addresses the clinical challenges that current automated techniques face in order to be fully utilized by clinicians, and highlights the importance of upgrading the current clinical bedside sampling frequencies to higher sampling rates in order to provide better hypoxic-ischemic biomarker detection frameworks. Additionally, the article highlights that current clinical automated epileptiform detection strategies for human neonates have been only concerned with seizure detection after the therapeutic latent phase of injury. Whereas recent animal studies have demonstrated that the latent phase of opportunity is critically important for early diagnosis of hypoxic-ischemic-encephalopathy electroencephalography biomarkers and although difficult, detection strategies could utilize biomarkers in the latent phase to also predict the onset of future seizures.

Effect of erythropoietin combined with hypothermia on serum tau protein levels and neurodevelopmental outcome in neonates with hypoxic-ischemic encephalopathy

Although hypothermia therapy is effective to treat neonatal hypoxic-ischemic encephalopathy,many neonatal patients die or suffer from severe neurological dysfunction.Erythropoietin is considered one of the most promising neuroprotective agents.We hypothesized that erythropoietin combined with hypothermia will improve efficacy of neonatal hypoxic-ischemic encephalopathy treatment.In this study,41 neonates with moderate/severe hypoxic-ischemic encephalopathy were randomly divided into a control group（hypothermia alone for 72 hours,n = 20） and erythropoietin group（hypothermia ＋ erythropoietin 200 IU/kg for 10 days,n = 21）.Our results show that compared with the control group,serum tau protein levels were lower and neonatal behavioral neurological assessment scores higher in the erythropoietin group at 8 and 12 days.However,neurodevelopmental outcome was similar between the two groups at 9 months of age.These findings suggest that erythropoietin combined with hypothermia reduces serum tau protein levels and improves neonatal behavioral neurology outcome but does not affect long-term neurodevelopmental outcome.

Estrogen inhibits lipid peroxidation after hypoxic-ischemic brain damage in neonatal rats

Sprague-Dawley neonatal rats within 7 days after birth were used in this study. The left common carotid artery was occluded and rats were housed in an 8% O2 environment for 2 hours to establish a hypoxic-ischemic brain damage model. 17β-estradiol （1 × 10-5 M） was injected into the rat abdominal cavity after the model was successfully established. The left hemisphere was obtained at 12, 24, 48, 72 hours after operation. Results showed that malondialdehyde content in the left brain of neonatal rats gradually increased as modeling time prolonged, while malondialdehyde content of 17β-estrodial-treated rats significantly declined by 24 hours, reached lowest levels at 48 hours, and then peaked at 72 hours after injury. Nicotinamide-adenine dinucleotide phosphate histochemical staining showed the nitric oxide synthase-positive cells and fibers dyed blue/violet and were mainly distributed in the cortex, hippocampus and medial septal nuclei. The number of nitric oxide synthase-positive cells peaked at 48 hours and significantly decreased after 17β-estrodial treatment. Our experimental findings indicate that estrogen plays a protective role following hypoxic-ischemic brain damage by alleviating lipid peroxidation through reducing the expression of nitric oxide synthase and the content of malondialdehyde.

Research progress of microRNA in the regulatory mechanism of hypoxic-ischemic encephalopathy

MicroRNA(miRNA)plays a key role in the molecular regulation of neurological diseases,and the molecular mechanism of miRNA is closely related to the occurrence and development of hypoxic-ischemic encephalopathy.Recently,it has been reported that various miRNA molecules can inhibit target mRNA and even degrade target mRNA by changing the complete complementary or incomplete complementary binding to the target mRNA.Therefore,miRNA is of great significance for the study of mRNA related to hypoxic ischemic encephalopathy.This article briefly reviews the molecular mechanisms,functions and regulation of miRNAs on hypoxic-ischemic encephalopathy.

Comparison of detection results of hypoxic-ischemic encephalopathy at different degrees in infant patients between brain electrical activity mapping, transcranial Doppler sonography and computer tomography examinations

BACKGROUND： It has been proved that brain electrical activity mapping （BEAM） and transcranial Doppler （TCD） detection can reflect the function of brain cell and its diseased degree of infant patients with moderate to severe hypoxic-ischemic encephalopathy （HIE）. OBJECTIVE： To observe the abnormal results of HIE at different degrees detected with BEAM and TCD in infant patients, and compare the detection results at the same time point between BEAM, TCD and computer tomography （CT） examinations. DESIGN ： Contrast observation SETTING： Departments of Neuro-electrophysiology and Pediatrics, Second Affiliated Hospital of Qiqihar Medical College. PARTICIPANTS： Totally 416 infant patients with HIE who received treatment in the Department of Newborn Infants, Second Affiliated Hospital of Qiqihar Medical College during January 2001 and December 2005. The infant patients, 278 male and 138 female, were at embryonic 37 to 42 weeks and weighing 2.0 to 4.1 kg, and they were diagnosed with CT and met the diagnostic criteria of HIE of newborn infants compiled by Department of Neonatology, Pediatric Academy, Chinese Medical Association. According to diagnostic criteria, 130 patients were mild abnormal, 196 moderate abnormal and 90 severe abnormal. The relatives of all the infant patients were informed of the experiment. METHOOS： BEAM and TCD examinations were performed in the involved 416 infant patients with HIE at different degrees with DYD2000 16-channel BEAM instrument and EME-2000 ultrasonograph before preliminary diagnosis treatment （within 1 month after birth） and 1,3,6,12 and 24 months after birth, and detected results were compared between BEAM, TCD and CT examinations. MAIN OUTCOME MEASURES： Comparison of detection results of HIE at different time points in infant patients between BEAM. TCD and CT examinations. RESULTS： All the 416 infant patients with HIE participated in the result analysis. （1） Comparison of the detected results in infant patients with mild HIE at different time points after birth between BEAM, TCD and CT examinations： BEAM examination showed that the recovery was delayed, and the abnormal rate of BEAM examination was significantly higher than that of CT examination 1 and 3 months after birth [55.4%（72/130）vs. 17.0% （22/130 ）,x^2=41.66 ;29.2% （ 38/130 ） vs. 6.2% （ 8/130 ）, x^2=23.77, P 〈 0.01 ], exceptional patients had mild abnormality and reached the normal level in about 6 months. TCD examination showed that the disease condition significantly improved and infant patients with HIE basically recovered 1 or 2 months after birth, while CT examination showed that infant patients recovered 3 or 4 months after birth. （2） Comparison of detection results of infant patients with moderate HIE at different time points between BEAM, TCD and CT examinations： The abnormal rate of BEAM examination was significantly higher than that of CT examination 1,3,6 and 12 months after birth [90.8% （178/196）,78.6% （154/196）,x^2=4.32,P 〈 0.05;64.3% （126/196）,43.9% （86/196） ,x^2=16.44 ;44.9% （88/196） ,22.4% （44/196）,x^2=22.11 ;21.4% （42/196）, 10.2% （20/196）,x^2=9.27, P 〈 0.01]. BEAM examination showed that there was still one patient who did not completely recovered in the 24^th month due to the relatives of infant patients did not combine the treatment,. TCD examination showed that the abnormal rate was 23.1%（30/196）in the 1^st month after birth, and all the patients recovered to the normal in the 3^rd month after birth, while CT examination showed that mild abnormality still existed in the 24^th month after birth （1.0% ,2/196）. （3） Comparison of detection results of infant patients with severe HIE at different time points between BEAM, TCD and CT examinations： The abnormal rate of BEAM examination was significantly higher than that of CT examination in the 1^st, 3^rd, 6^th and 12^th months after birth[86.7% （78/90）,44.4% （40/90）,x^2=35.53;62.2% （56/90）,31.1% （28/90）,x^2=17.51 ;37.8% （34/90）,6.7% （6/90）, x^2=27.14, P 〈 0.01]. BEAM examination showed that mild abnormality still existed in 4 infant patients in the 24^th month after birth. TCD examination showed that the abnormal rate was 11.1% （10/90） in the 3^rd month after birth, and all the infant patients recovered in the 6^th month after birth. CT examination showed that the abnormal rate was 6.7%（6/90） in the 12^th month after birth, and all of infant patients recovered to the normal in the 24^th month after birth.CONCLUSION ： BEAM is the direct index to detect brain function of infant patients with HIE, and positive reaction is still very sensitive in the tracking detection of convalescent period. The positive rate of morphological reaction in CT examination is superior to that in TCD examination, and the positive rate is very high in the acute period of HIE in examination.

Electroencephalography studies of hypoxic ischemia in fetal and neonatal animal models

Alongside clinical achievements,experiments conducted on animal models (including primate or non-primate) have been effective in the understanding of various pathophysiological aspects of perinatal hypoxic/ ischemic encephalopathy (HIE).Due to the reasonably fair degree of flexibility with experiments,most of the research around HIE in the literature has been largely concerned with the neurodevelopmental outcome or how the frequency and duration of HI seizures could relate to the severity of perinatal brain injury,following HI insult.This survey concentrates on how EEG experimental studies using asphyxiated animal models (in rodents,piglets,sheep and non-human primate monkeys) provide a unique opportunity to examine from the exact time of HI event to help gain insights into HIE where human studies become difficult.

头部亚低温治疗新生儿HIE的临床疗效分析

目的探讨头部亚低温治疗对新生儿缺氧缺血性脑病（HIE）的临床疗效。方法将2012年7月至2015年6月淮安市妇幼保健院新生儿医学中心收治的50例中、重度新生儿HIE患儿随机分为亚低温组和对照组,亚低温组在生后6小时内给头部亚低温治疗72小时,直肠温度维持在（34.5～35.5）℃;对照组监护下维持直肠温度（36.5～37.5）℃,两组其它治疗措施相同。比较两组患儿治疗的不良反应、新生儿神经行为评分、动态脑电图评价头部亚低温治疗对新生儿HIE的临床疗效。结果1头部亚低温治疗对新生儿HIE治愈好转率与对照组比较差异无统计学意义（P=0.508）;2头部亚低温治疗的不良反应发生率与对照组类似,两组比较差异均无统计学意义（均P〉0.05）;3两组患儿在生后7、14、28天进行新生儿神经行为评分（NBNA）测定,14天和28天时亚低温组的评分均高于对照组,两组比较差异均有统计学意义（t值分别为2.085、2.136,均P〈0.05）;4治疗72小时后患儿中对照组中、重度异常动态脑电图发生率高于亚低温组,差异无统计学意义（P=0.758）。结论头部亚低温治疗对中、重度新生儿HIE是安全有效的一种措施具有近期的神经保护作用。

神经节苷脂联合纳络酮治疗新生儿HIE疗效观察

目的探讨神经节苷脂联合纳洛酮治疗新生儿缺氧缺血性脑病（HIE）的疗效。方法将82例缺氧缺血性脑病患儿随机分为两组，纳洛酮治疗组（对照组）35例，神经节苷脂联合纳洛酮治疗组（观察组）47例，观察两组治疗的有效率以及相关指标的变化。结果①观察组比较对照组总体有效率之间差异无统计学意义（x。=3．387，P〉0．05）；②观察组患儿的意识、反射及肌张力恢复时间与对照组比较差异均有统计学意义（t值分别为-8．033、-10．079、-6．560，均P〈0．05）；③观察组患儿7天及10天新生儿行为神经评分明显高于对照组（f值分别为10．961、13．124，均P〈0．05）。结论神经节苷脂联合纳洛酮治疗新生儿缺氧缺血性脑病可以缩短患儿的恢复时间，并能提高神经评分。

核磁共振信号强度对比在HIE中的诊断价值

目的 通过对足月缺氧缺血性脑病患儿和正常足月儿头颅常规核磁共振检查结果 的分析,探讨后外侧豆状核与内囊后肢在T1加权上的信号强度改变对新生儿缺氧缺血性脑病的诊断价值.方法 选择西安交通大学医学院第一附属医院新生儿科收治的足月新生儿缺氧缺血性脑病患者20例作为实验组,同期出生的正常足月新生儿7例作为对照组,两组新生儿均在其出生后3～12天内行常规核磁共振检查.结果 后外侧豆状核的信号强度高于或等于内囊后肢的信号强度,实验组与对照组之间的比较差异有显著的统计学意义（χ^2=8.703,P〈0.01）.结论 头颅核磁共振检查中后外侧豆状核的信号强度高于或等于内囊后肢的信号强度时,对缺氧缺血性脑病的诊断具有重要意义.

新生儿HIE头颅CT检查的早期诊断价值

目的探讨脑CT表现对新生儿缺血缺氧性脑病(HIE)的分度与胎龄的关系,从而更好地为临床早期诊断服务。方法选取2016年2月至2017年2月在延安大学附属医院救治的68例HIE患儿为研究组和24例无围产期窒息缺氧史患儿为对照组,均进行头颅CT检查,结合临床表现将CT结果进行比对分析。结果 HIE的CT主要表现为颅内出血和脑水肿,颅内散在不同程度的低密度影。根据病灶范围将68例HIE患儿CT诊断分为轻度20例(29.41%)、中度26例(38.24%)及重度22例(32.35%)。HIE患儿脑组织基底节、脑白质及脑灰质的CT值会随着患儿胎龄的增加而逐渐增大,不同胎龄患儿脑组织基底节、脑白质及脑灰质值比较差异明显(F值分别是8.16、5.49、7.38,均P<0.05)。与对照组比较,中度组和重度组HIE患儿的基底节、脑白质、脑灰质的CT值明显降低,差异有统计学意义(中度组vs.对照组:q值分别为4.24、16.02、5.97;重度组vs.对照组:q值分别为10.23、29.35、12.07,均P<0.05)。将轻度组、中度组和重度组三组的CT值进行两两比较,结果发现重度组基底节、脑白质、脑灰质CT值与轻度组、中度组比较,差异均有统计学意义(q值分别为9.34、25.09、7.87、6.17、14.01、6.36,均P<0.05)。与正常的早产儿相比,胎龄为34~36周的HIE早产儿的脑灰质和脑白质CT值明显下降,且差异均有统计学意义(t值分别是3.41、2.82,均P<0.05)。结论头颅CT检查能真实而客观地反映新生儿缺血缺氧性脑病脑损伤情况,同时判断有无合并颅内出血(ICH)及区分出血类型,对HIE的临床早期诊断、分度及治疗是一个可靠指标。

DWI对HIE合并黄疸患儿早期诊断价值的探讨

目的探讨磁共振弥散加权成像（DWI）的表观弥散系数（ADC）值在评价足月新生儿缺氧缺血性脑病（HIE）同时合并黄疸时的早期临床诊断价值。方法采用平面回波超高速成像方法对mE患儿进行DwI冠状位扫描，感兴趣区为左右两侧的豆状核、额叶深部白质及海马，后期处理为ADC值的测定，并对测定数据进行分析。结果①HIE组均为足月儿，共32例，轻、中、重度HIE患儿分别为12例、13例、7例。根据合并黄疸轻重程度再次分为无黄疸组8例，轻度黄疸5例，中度黄疸14例，重度黄疸5例；②无黄疸组与重度黄疸组的右侧豆状核ADC值比较差异有统计学意义（P=0．047〈0．05）；无黄疸组与重度黄疸组左侧豆状核ADC值比较差异有统计学意义（P=0．044〈0．05）；③在进行右侧海马的ADC值比较中，无黄疸组与轻度黄疸组比较差异有统计学意义（P=0．008〈0．05）；轻度黄疽与中度黄疸组比较差异有统计学意义（P=0．015〈0．05）；④在进行左侧海马ADC值比较中，无黄疸组与轻度黄疸组比较差异有统计学意义（P=0．002〈0．05）；轻度黄疸与中度黄疸比较差异有统计学意义（P=0．002〈0．05）；轻度黄疸与重度黄疸组比较差异有统计学意义（P=0．014〈0．05）；⑤各部位ADC值与黄疸之间无相关性（均P〉O．01），即随着黄疸程度的加重ADC值无明显的变化趋势。结论早期进行DwI扫描，黄疸对HIE患儿的DWI信号无影响，可用于早期鉴别缺氧缺血性脑病和胆红素脑病。

HIE新生儿血浆INS、IGF-Ⅰ水平变化的意义

目的:探讨缺氧缺血性脑病(HIE)新生儿血浆胰岛素(INS)、胰岛素样生长因子Ⅰ(IGF-Ⅰ)水平变化及意义。方法:应用放射免疫分析测定了40例HIE新生儿急性期与恢复期血浆INS和IGF-Ⅰ的水平并与30名正常新生儿作比较。结果:HIE患儿急性期血中IGF-Ⅰ水平下降,恢复期有所回升,与正常对照组相比,三者之间差异有显著性(P<0.01)。轻、中、重度患儿之间差异有显著性(P<0.01)。血浆INS水平与对照组无明显差异(P>0.05)。结论:INS、IGF-Ⅰ在中枢神经系统中起重要保护作用,并与新生儿HIE病理过程密切相关。

复方丹参、脑蛋白水解物治疗HIE疗效观察

目的探讨复方丹参与脑蛋白水解物联合应用治疗新生儿缺氧缺血性脑病(HIE)的临床疗效。方法将新乡市中心医院自2007年2—11月入院治疗的新生儿缺氧缺血性脑病85例随机分为2组,对照组43例采用常规3项支持疗法和对症治疗,治疗组42例在对照组治疗基础上加用复方丹参注射液与脑蛋白水解物注射液联合应用,观察其疗效。结果治疗组总有效率为95.23%,对照组为76.74%,2组比较,差异有统计学意义(P<0.05)。结论复方丹参注射液与脑蛋白水解物注射液联合应用治疗HIE疗效确切,值得推广。

Biomarkers of hypoxic-ischemic encephalopathy:a systematic review

Background Current diagnostic criteria for hypoxic–ischemic encephalopathy in the early hours lack objective measurement tools.Therefore,this systematic review aims to identify putative molecules that can be used in diagnosis in daily clinical practice(PROSPERO ID:CRD42021272610).Data sources Searches were performed in PubMed,Web of Science,and Science Direct databases until November 2020.English original papers analyzing samples from newborns>36 weeks that met at least two American College of Obstetricians and Gynecologists diagnostic criteria and/or imaging evidence of cerebral damage were included.Bias was assessed by the Newcastle–Ottawa Scale.The search and data extraction were verified by two authors separately.Results From 373 papers,30 met the inclusion criteria.Data from samples collected in the first 72 hours were extracted,and increased serum levels of neuron-specific enolase and S100-calcium-binding protein-B were associated with a worse prognosis in newborns that suffered an episode of perinatal asphyxia.In addition,the levels of glial fibrillary acidic protein,ubiquitin carboxyl terminal hydrolase isozyme-L1,glutamic pyruvic transaminase-2,lactate,and glucose were elevated in newborns diagnosed with hypoxic–ischemic encephalopathy.Moreover,pathway analysis revealed insulin-like growth factor signaling and alanine,aspartate and glutamate metabolism to be involved in the early molecular response to insult.Conclusions Neuron-specific enolase and S100-calcium-binding protein-B are potential biomarkers,since they are correlated with an unfavorable outcome of hypoxic-ischemic encephalopathy newborns.However,more studies are required to determine the sensitivity and specificity of this approach to be validated for clinical practice.