Glia maturation factor

胶质细胞成熟因子
  • 文章类型: Randomized Controlled Trial
    背景:患有痉挛性双瘫的儿童有张力,缺乏选择性电机控制,低于正常的姿势稳定性和延迟的运动发育。选择性背根切断术,然后进行物理治疗是一种旨在缓解高渗性的永久性手术。
    目的:探讨选择性背根切断术(SDR)后进行体育锻炼对粗大运动功能(GMF)的疗效。功能平衡,步行能力,选择性运动控制(SMC)和步行能量成本(ECW)的非卧床儿童痉挛双瘫。
    方法:将42名5至8岁的痉挛型双瘫患儿随机分为对照组或SDR组。两组均接受设计的体能训练,包括渐进式功能力量训练和标准矫形管理(SOM),每周3次,为期6个月。GMF,功能平衡,ECW,通过粗大运动功能测量(GMfM-88)评估功能容量和SMC,儿科平衡量表(PBS),能量消耗指数(EEI),六分钟步行测试(6MWT)和下肢选择性控制评估(SCALE),分别。在治疗前(基线)进行评估,6个月后(I后)和1年随访(II后)。
    结果:从基线到I后和II后评估,GMF的变化,功能平衡,ECW,对照组和SDR组的功能容量和SMC显着改善(P<0.001)。此外,组比较显示差异显著有利于SDR组。
    结论:SDR之后的综合体育锻炼显示出质变和运动功能增强,通过减少痉挛来实现。
    BACKGROUND: Children with spastic diplegia experience tonicity, lack of selective motor control, subnormal postural stability and delayed motor development. Selective dorsal rhizotomy followed by physical therapy is a permanent procedure aimed to alleviate hypertonicity.
    OBJECTIVE: To explore the efficacy of selective dorsal rhizotomy (SDR) followed by a physical training on gross motor function (GMF), functional balance, walking capacity, selective motor control (SMC) and energy cost of walking (ECW) of ambulant children with spastic diplegia.
    METHODS: Forty-two children with spastic diplegia aged 5 to 8 years were randomly assigned into the control or SDR-group. Both groups received a designed physical training of progressive functional strength training and standard orthotic management (SOM) 3 times a week for 6 months. GMF, functional balance, ECW, functional capacity and SMC were assessed by gross motor function measure (GMfM-88), pediatric balance scale (PBS), energy expenditure index (EEI), six-minute walking test (6MWT) and selective control assessment of lower extremity (SCALE), respectively. Assessment was carried out before the treatment (baseline), after 6 months (post I) and 1-year follow-up (post II).
    RESULTS: From baseline to post I and post II assessments, changes of GMF, functional balance, ECW, functional capacity and SMC within the control and SDR groups showed significant improvements (P < 0.001). Moreover, group comparison showed significant differences in favor of the SDR group.
    CONCLUSIONS: Integrated physical training followed SDR demonstrated qualitative changes and enhancement in motor function, achieved by spasticity reduction.
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  • 文章类型: Randomized Controlled Trial
    (1)背景:虽然山羊奶配方(GMF)是牛奶配方(CMF)的替代品,婴儿对其中一个的偏好尚未得到正式评估。具体来说,我们在这项研究中的目的是确定与传统的基于乳清的CMF相比,基于全脂牛奶的GMF的婴儿是否会遇到更少的喂养行为问题。(2)方法:这是一个多中心,双盲,在巴黎或附近的六个儿科医生办公室进行了双臂平行分配的随机对照试验,法国,2018年6月至2021年12月31日。总的来说,64名健康婴儿(≤4个月),主要是配方奶,被随机分配到基于全乳的GMF(n=33)或基于乳清的CMF(n=31)臂。父母完成了婴儿饮食行为问卷(BEBQ)和改良的QUALIN问卷,以评估婴儿喂养行为和生活质量(精神运动和社会情绪发展),分别,纳入时(牛奶分娩前1至5天)和最后一次就诊(牛奶分娩后第28±3天)。所有招募的患者均获得知情同意,伦理委员会批准了这项研究。(3)结果:从纳入到最终访问的BEBQ饮食享受和饮食缓慢量表得分的变化在两组之间没有差异。然而,食物反应性(GMF:0.15±1;CMF:-0.48±0.81;p=0.010)和一般食欲(GMF:0.26±1.2;CMF:-0.48±0.88;p=0.012)的子量表得分显着改善,和改良的QUALIN(GMF:4.6±9.4;CMF:-0.40±7.6;p=0.03)得分有利于GMF组。(4)结论:在这种双盲中,随机对照试验,GMF喂养的婴儿比CMF喂养的婴儿表现出更大的总体食欲,可能是由于这些公式组成的差异(即,蛋白质和脂质分布)。此外,GMF喂养的婴儿享有更好的生活质量。两组之间的食物享受没有差异。这些发现表明,基于全脂牛奶的GMF可能是基于乳清的CMF的有吸引力的替代品。临床试验注册:NCT03488758(clinicaltrials.gov)。
    (1) Background: While goat milk formula (GMF) is an alternative to cow milk formula (CMF), infants\' preferences for one over the other have not been formally assessed. Specifically, our aim in this study was to determine whether infants experience fewer feeding behavior problems with whole milk-based GMF than with conventional whey-based CMF. (2) Methods: This was a multicenter, double-blind, randomized controlled trial with two-arm parallel assignment conducted in six pediatricians\' offices in or near Paris, France, between June 2018 and 31 December 2021. Overall, 64 healthy infants (≤4 months old), predominantly formula-fed, were randomly assigned to either the whole milk-based GMF (n = 33) or whey-based CMF (n = 31) arm. Parents completed the Baby Eating Behavior Questionnaire (BEBQ) and the modified QUALIN questionnaire to evaluate infant feeding behavior and quality of life (psychomotor and socioemotional development), respectively, at inclusion (1 to 5 days before milk delivery) and the final visit (day 28 ± 3 after milk delivery). Informed consent was obtained for all recruited patients, and an ethical committee approved the study. (3) Results: Changes in BEBQ Enjoyment of Food and Slowness in Eating subscale scores from inclusion to final visit did not differ between arms. However, there were significant improvements in subscale scores for Food Responsiveness (GMF: 0.15 ± 1; CMF: -0.48 ± 0.81; p = 0.010) and General Appetite (GMF: 0.26 ± 1.2; CMF: -0.48 ± 0.88; p = 0.012), and modified QUALIN (GMF: 4.6 ± 9.4; CMF: -0.40 ± 7.6; p = 0.03) scores in favor of the GMF group. (4) Conclusions: In this double-blind, randomized controlled trial, GMF-fed infants exhibited a greater general appetite than CMF-fed infants, possibly due to differences in the composition of these formulas (i.e., protein and lipid profiles). In addition, GMF-fed infants enjoyed a better quality of life. There was no difference in food enjoyment between groups. These findings suggest that whole-milk-based GMF could be an attractive alternative to whey-based CMF. Clinical trial registration: NCT03488758 (clinicaltrials.gov).
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  • 文章类型: Journal Article
    目的:结肠镜检查是检测结肠粘膜异常的主要方法,直肠,和回肠末端。肠道准备不足是常见的问题,可能会阻碍结肠镜检查期间的成功可视化。尽管研究确定住院是肠道准备不足的预测因素,在这个患者群体中,护理的敏锐度差异很大。本研究旨在研究患者特征和护理水平预测因素对住院患者肠道准备质量不足的影响。
    方法:这项回顾性研究是在一个城市一级创伤医疗中心进行的,包括2015年1月1日至2020年6月30日在医院接受诊断性结肠镜检查的成年患者。我们检查了普通医疗层(GMF)之间的住院护理水平,重症监护病房(ICU)和遥测单元(TU),并评估了这种与肠道准备质量的关联,调整已知和未知的预测因子。
    结果:在538例接受结肠镜检查的患者中,47.4%的人进入了TU,43.7%进入GMF,8.9%进入ICU。对于整个样本,72.7%的患者取得了良好或优良的准备,肠道准备质量因护理水平而异(P=0.01)。与GMF相比,重症监护病房的患者不太可能实现充分的肠道准备(赔率比[OR]0.36;95%置信区间[CI]0.17,0.77),在调整患者特征后,药物,身体状况,和准备方案。GMF和TU患者的肠道准备质量(BPQ)没有显着差异(OR0.96;95CI0.61,1.52)。此外,充分的BPQ与停药时间和盲肠插管有关,但腺瘤检出率不高。
    结论:结果表明,ICU设置是肠道准备不足的独立预测因素,并且先前使用阿片类药物和泻药的患者在医院中可能更有可能肠道准备不足。未来的干预措施应优先考虑重症监护病房患者的术前临床医生会议,包括更详细的准备情况评估和全面的用药史。
    OBJECTIVE: Colonoscopy is the primary method to detect mucosal abnormalities in the colon, rectum, and terminal ileum. Inadequate bowel preparation is a common problem and can impede successful visualization during colonoscopy. Although studies identified hospitalization as a predictor of inadequate bowel preparation, acuity of care vary greatly within this patient population. The current study aims to examine the effect of patient characteristics and care level predictors on inadequate bowel preparation quality within the inpatient setting.
    METHODS: This retrospective study was conducted in a single urban level 1 trauma medical center and included adult patients undergoing diagnostic colonoscopy while admitted in the hospital from January 1, 2015 to June 30, 2020. We examined the level of inpatient care between the General Medical Floor (GMF), Intensive Care Units (ICU) and Telemetry Unit (TU) and assessed this association with bowel preparation quality, adjusting for known and unknown predictors.
    RESULTS: Of 538 patients undergoing colonoscopy, 47.4% were admitted into TU, 43.7% into GMF and 8.9% into ICU. For the entire sample, 72.7% of patients achieved good or excellent preparation and quality of bowel preparation differed by care level (P = 0.01). Patients from the critical care units were less likely to achieve adequate bowel preparation when compared to GMF (Odds Ratio [OR] 0.36; 95% Confidence Interval [CI] 0.17,0.77), after adjusting for patient characteristics, medications, physical status, and preparation regimen. No significant difference in Bowel Preparation Quality (BPQ) was identified between patients from GMF and TU (OR 0.96; 95%CI 0.61, 1.52). Furthermore, adequate BPQ was associated with withdrawal time and cecal intubation, but not higher adenoma detection rates.
    CONCLUSIONS: Results suggest the ICU setting is an independent predictor for inadequate bowel preparation and patients with prior opioid and laxative use may be more likely to have inadequate bowel preparation in the hospital. Future interventions should prioritize preprocedural clinician meetings for critical care unit patients, including a more detailed readiness assessment and thorough medication history.
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  • 文章类型: Journal Article
    我们的目的是使用随机双盲试验来确定饲喂基于山羊奶的婴儿配方奶粉(GMF)的新生儿的生长和安全性参数。其中牛奶配方(CMF)作为对照,母乳喂养(BF)作为参考。
    从25个欧洲研究中心招募了年龄达14天的健康足月婴儿(n=218),并随机分配到GMF或CMF。重量,长度,在基线测量头围,在研究诊所的14、28、56、84和112天。记录不良事件和粪便特征,反流,挑剔,绞痛,父母在3天的日记中自我报告了胀气。将人体测量值转换为WHO标准化的年龄和性别调整的z评分。协方差分析和线性混合模型用于统计分析生长,同时在研究母乳喂养组(n=86)时调整潜在的混杂因素。
    比较GMF与CMF组,112天干预后,体重增加[平均差227.8g(95%CI-16.6~-439.0)]和人体测量的z评分相似.从84天开始,婴儿配方奶粉组的平均(SD)体重z评分高于BF组(GMF:0.28(0.84),CMF:0.12(0.88),BF-0.19(1.02),P<0.05),而身长和头围z评分相似。严重不良事件和反流的发生率,挑剔,绞痛,三组的肠胃胀气相似。
    我们的数据表明GMF提供了足够的增长,具有良好的耐受性,并且在婴儿中使用是安全的。
    We aimed to determine the growth and safety parameters in newborns fed a goat milk based infant formula (GMF) using a randomized double-blind trial, in which a cow milk formula (CMF) served as a control and a breast fed (BF) group as a reference.
    Healthy term infants (n = 218) aged up to 14 days were recruited from 25 European study centers and randomized to GMF or CMF. Weight, length, head circumference were measured at baseline, and at 14, 28, 56, 84, and 112 days at the study clinics. Adverse events were recorded and stool characteristics, reflux, fussiness, colic, and flatulence were self-reported by parents in 3-day diaries. Anthropometric measurements were transformed to WHO standardized age- and sex-adjusted z -scores. Analyses of covariance and linear mixed modeling were used to statistically analyze growth, while adjusting for potential confounders when studying the breast-fed group (n = 86).
    Comparing the GMF to the CMF group, weight gain [mean difference 227.8 g (95% CI -16.6 to -439.0)] and z-scores for anthropometric measurements were similar after 112 days intervention. Infant formula groups showed greater mean (SD) weight z-scores than the BF group from 84 days onwards (GMF: 0.28 (0.84), CMF: 0.12 (0.88), BF -0.19 (1.02), P < 0.05), whereas length and head circumference z-scores were similar. Incidences of serious adverse events and reflux, fussiness, colic, and flatulence were similar among the three groups.
    Our data demonstrate that GMF provides adequate growth, has a good tolerability, and is safe to use in infants.
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  • 文章类型: Journal Article
    UNASSIGNED:与经典MF相比,肉芽肿性真菌病(GMF)的预后较差,并且仍然是一个重要的诊断难题。我们分析了临床病理,免疫表型,和GMF的分子特征来开发诊断算法。我们的方法涉及2014年至2020年数据库中GMF患者的回顾性病例系列研究。总共确定了8例患者,其中9例GMF活检。皮肤表现具有可变的临床表型。组织学上,所有病例均表现为非典型CD4+T细胞浸润,50%(n=4),局灶性37.5%(n=3),并且没有25%(n=2)表皮性。在77.8%的活检(n=7)中发现了肉芽肿形成,其中结节样肉芽肿占57.1%(n=4),环状肉芽肿样类型占42.9%(n=3)。在66.7%的活检中(n=6),CD4:CD8比值>4:1,66.6%(n=6)的活检显示CD7表达缺失≥50%.对活检切片进行的T细胞受体基因重排研究在所有活检中均为阳性(n=6),而外周血T细胞受体基因重排研究未发现克隆性.总之,GMF具有微妙或不存在的表皮性和可变的肉芽肿反应;因此,诊断需要多模式方法,我们提出的算法提供了一个框架来解决这个诊断挑战。
    UNASSIGNED: Granulomatous mycosis fungoides (GMF) harbors a worse prognosis compared with classic MF and remains a significant diagnostic dilemma. We analyzed clinicopathologic, immunophenotypic, and molecular characteristics of GMF to develop a diagnostic algorithm. Our methodology involved a retrospective case series study of patients with GMF from our database between 2014 and 2020. A total of 8 patients with 9 biopsies of GMF were identified. Skin manifestations had variable clinical phenotype. Histologically, all cases demonstrated atypical CD4 + T-cell infiltrate with scant in 50% (n = 4), focal 37.5% (n = 3), and absent 25% (n = 2) epidermotropism. Granuloma formation was seen in 77.8% biopsies (n = 7) with sarcoid-type granulomas in 57.1% (n = 4) and granuloma annulare-like type in 42.9% (n = 3). In 66.7% of biopsies (n = 6), the CD4:CD8 ratio was >4:1 and 66.6% (n = 6) of biopsies showed ≥50% loss of CD7 expression. T-cell receptor gene rearrangement studies performed on biopsy sections were positive in all biopsies (n = 6), whereas peripheral blood T-cell receptor gene rearrangement studies did not identify clonality. In conclusion, GMF has subtle or absent epidermotropism and variable granulomatous reaction; thus, the diagnosis requires a multimodal approach, and our proposed algorithm provides a framework to approach this diagnostic challenge.
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  • 文章类型: Journal Article
    尽管副病毒(PeV)和肠道病毒(EV)是儿童中枢神经系统(CNS)感染的常见原因,对他们的长期神经/神经发育并发症知之甚少。我们调查了,纵向超过5年,足月新生儿和RT-qPCR证实的PEV或EV-CNS感染的婴儿的运动神经发育。运动神经发育通过标准化测试进行评估:艾伯塔省婴儿运动量表(AIMS),Bayley婴儿和幼儿秤开发版本3(Bayley-3-NL),以及感染后6、12、24和60个月的儿童运动评估电池2版(M-ABC-2-NL)。将PeV-CNS感染儿童的结果与EV-CNS感染儿童的结果以及荷兰规范参考文献进行了比较。在多变量分析中,对发病年龄进行了调整,性别,母亲教育,纳入172名年龄≤3个月的合格儿童中的60名。PeV-CNS感染的儿童一直较低,非显著平均粗大运动功能(GMF)Z得分,与患有EV-CNS感染和人群正常参考GMF的同行相比。他们的GMF在6到24个月之间有所改善,在5年时下降。他们的精细运动功能(FMF)得分落在人口规范参考范围内。
    结论:这些结果表明,PeV-A3-CNS感染对幼儿粗大运动神经发育的影响可能在以后的生活中表现出来。他们强调了对PeV-A3-CNS感染至学龄儿童进行纵向神经发育评估的重要性。
    背景:•人病毒(PeV)是新生儿和婴儿中枢神经系统感染(CNS感染)的主要原因。•对患有PeV-A3-CNS感染的新生儿和婴儿的神经和神经发育结果感兴趣。
    背景:•这项前瞻性研究比较了足月新生儿和患有PeV-A3-CNS感染的婴儿与患有EV-CNS感染的婴儿的运动神经发育并具有规范参考。结果支持对患有PeV-A3-CNS感染的新生儿和婴儿进行随访以检测细微的神经发育延迟并开始早期干预的重要性。
    Though parechovirus (PeV) and enterovirus (EV) are common causes of central nervous system (CNS) infection in childhood, little is known about their long-term neurologic/neurodevelopmental complications. We investigated, longitudinally over a 5-year period, motor neurodevelopment in term-born newborns and infants with RT-qPCR-confirmed PeV- or EV-CNS infection. Motor neurodevelopment was assessed with standardized tests: Alberta Infant Motor Scale (AIMS), Bayley Scales of Infant and Toddler Development version-3 (Bayley-3-NL), and Movement Assessment Battery for Children version-2 (M-ABC-2-NL) at 6, 12, 24, and 60 months post-infection. Results of children with PeV-CNS infection were compared with those of peers with EV-CNS infection and with Dutch norm references. In the multivariate analyses adjustments were made for age at onset, gender, maternal education, and time from CNS infection Sixty of 172 eligible children aged ≤ 3 months were included. Children with PeV-CNS infection had consistently lower, non-significant mean gross motor function (GMF) Z-scores, compared with peers with EV-CNS infection and population norm-referenced GMF. Their GMF improved between 6 and 24 months and decreased at 5 years. Their fine motor function (FMF) scores fell within the population norm reference.
    CONCLUSIONS: These results suggest that the impact of PeV-A3-CNS infection on gross motor neurodevelopment in young children might manifest later in life. They highlight the importance of longitudinal neurodevelopmental assessments of children with PeV-A3-CNS infection up to school age.
    BACKGROUND: • Human parechovirus (PeV) is a major cause of central nervous system infection (CNS infection) in newborns and infants. • There is interest in the neurological and neurodevelopmental outcome of newborns and infants with PeV-A3-CNS infection.
    BACKGROUND: • This prospective study compares the motor neurodevelopment of term-born newborns and infants with PeV-A3-CNS infection with those with EV-CNS infection and with norm references. • The results support the importance of follow-up of newborns and infants with PeV-A3-CNS infection to detect subtle neurodevelopmental delay and start early interventions.
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  • 文章类型: Journal Article
    This in vivo double-blind study evaluated the effect of recombinant human glial growth factor 2 (rhGGF2), a Schwann cell mitogen, on the recovery of motor function of rat sciatic nerve following crush injury. Seventy three rats were divided into three groups. Group I (n=5), sham operated; Groups II (n=34) and III (n=34) received a 100 g crush load for 2 h over a 5 mm segment of the sciatic nerve. Group III was treated with 1 mg/kg rhGGF2, via subcutaneous injection one day before nerve crush and daily for the following four days. Group II received an equivalent volume of saline as a control. Motor functional recovery was assessed by calculating the sciatic functional index (SFI) and the recovery rate of tetanic contractile force of the extensor digitorum longus (EDL) muscle. Recovery of nerve function was evident at day 11 after crush in the rhGGF2-treated animals, whereas the nerves in controls were still paralyzed. The rhGGF2-treated animals showed a significant improvement of the SFI between days 11-21 postoperatively when compared to controls. The isometric tetanic contractile force was stronger in the rhGGF2-treated group than in controls, with a significant difference at 40 to 70 Hz stimulus frequencies on day 4. Correlation analysis showed that tetanic contractile force had a linear correlation with the SFI. Histologic assessment indicated that the rhGGF2-treated animals showed less severe degeneration and earlier robust remyelination of axons than controls. The results suggest that treatment with rhGGF2 is effective in promoting nerve regeneration as seen in measurements of functional recovery and qualitative assessment of nerve morphology. The mechanism of GGF\'s protective effect may be related to its direct action on Schwann cells, stimulating their mitosis as well as inducing neurotrophic factors essential to neuronal maintenance and repair.
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  • 文章类型: Journal Article
    Glia maturation factor (GMF) was tested on separate cultures of glioblasts and fibroblasts isolated from the same rate fetuses. The astrocytic marker glial fibrillary acidic (GFA) protein and the fibroblast marker fibronectin were visualized with immunofluorescence. Before GMF stimulation, glioblasts showed only background fluorescence for GFA protein and fibronectin. After GMF stimulation, glioblasts showed intense fluorescence for GFA protein, especially in the processes and end-feet. GMF-stimulated glioblasts also showed a slight increase in intracellular fluorescence for fibronectin, mainly in the perinuclear cytoplasm but never in the process terminals. At no time was extracellular fibronectin observed in glioblast cultures. In contrast, fibroblast cultures formed an extensive extracellular network of fibronectin whether or not they were exposed to GMF. GFA protein never showed up in fibroblast cultures regardless of stimulation by GMF. The results indicate that GMF stimulates an increase of GFA protein in glial processes and confirms the astrocytic nature of these glioblasts.
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    文章类型: Journal Article
    Glia maturation factor-beta (GMF-beta) is a 17 kDa protein purified and sequenced from bovine brains. Using the monoclonal antibody G2-09 directed against GMF-beta, we previously demonstrated endogenous GMF-beta in astroblasts, Schwann cells, and their tumors in culture. In the present study, we have used indirect immunofluorescence microscopy with G2-09 to examine the effects of transection, crush, and regeneration of sciatic nerve on the expression of GMF-beta in Schwann cells in situ and to study the time course of GMF-beta induction in Schwann cells in vitro. For comparison, a parallel study was carried out with monoclonal antibodies directed against nerve growth factor (NGF) receptor. We found that (1) neither GMF-beta nor NGF receptor was detectable in intact sciatic nerves, (2) all Schwann cells of the distal segment of the transected nerve expressed GMF-beta as early as 3 d after axotomy that persisted up to 3 weeks, (3) axonal regeneration repressed the Schwann cell expression of GMF-beta, (4) isolated Schwann cells derived from rat sciatic and adult human sural nerves developed intracellular GMF-beta in culture following an initial lag period, and (5) the induction of Schwann cell NGF receptor coincided temporally with that of GMF-beta in the transected nerve and in culture. These results show that the expression of GMF-beta in Schwann cells, as is the case with the NGF receptor, is induced by the loss of the normal axon-Schwann cell contact. We propose that the induction of GMF-beta, as well as NGF receptor, in Schwann cells after nerve injury plays a role in axonal regeneration.
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