scholarly journals Effects of mesenchymal stem cells transplantation on cognitive deficits in animal models of Alzheimer’s disease: A systematic review and meta-analysis

2018 ◽  
Vol 8 (7) ◽  
pp. e00982 ◽  
Author(s):  
Meiling Ge ◽  
Yunxia Zhang ◽  
Qiukui Hao ◽  
Yunli Zhao ◽  
Birong Dong
Keyword(s):  
Systematic Review ◽  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Animal Models ◽  
Cognitive Deficits ◽  
Meta Analysis ◽  
Stem Cells Transplantation

scholarly journals Verum- versus Sham-Acupuncture on Alzheimer’s Disease (AD) in Animal Models: A Preclinical Systematic Review and Meta-Analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-21 ◽  
Author(s):  
Fei-Yi Zhao ◽  
Qiang-Qiang Fu ◽  
Zhen Zheng ◽  
Li-Xing Lao ◽  
Hua-Ling Song ◽  
...  
Keyword(s):  
Systematic Review ◽  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Animal Models ◽  
Animal Studies ◽  
Memory Performance ◽  
Meta Analysis ◽  
Sham Acupuncture ◽  
Health Condition ◽  
Morris Water Maze Test

Background. Alzheimer’s disease (AD) is a common health condition affecting senile people and leads to severe cognitive dysfunctions. Acupuncture has been shown to be a possible alternative natural remedy for AD in some animal studies. Objective. To perform a systematic review to identify the effect of verum-acupuncture compared with sham-acupuncture on learning and memory performance among animal models of AD. Methods. Experimental animal studies of treating AD via verum- and sham- acupuncture were searched in nine electronic databases, including Sciverse ScienceDirect, PubMed, Springer, Ebsco Medline, AMED, EMBASE (Elsevier), Scopus (Elsevier), PsycINFO (ProQuest), and OVID from the dates of the databases’ inception to June 2019. The Morris water maze test was considered as an outcome measure. The software Revman 5.3 and Stata 16.0 were used to conduct the meta-analysis. Heterogeneity was examined by using I2 statistics. The publication bias was assessed via Begg’s test by Stata 16.0. Results. Twelve studies involving 229 animals met the inclusion criteria. Most of the studies had a moderate quality according to SYRCLE's risk of bias tool for animal studies. The results of the meta-analysis indicated that verum-acupuncture could reduce the escape latency (MD = −12.90, 95% CI (−17.08, −8.71), p<0.001) and increase the time spent in the original platform quadrant (MD = 7.28, 95% CI (4.23, 10.33), p<0.001) and frequency of the crossing former platform (MD = 2.01, 95% CI (1.53, 2.50), p<0.001) compared with the sham-acupuncture. Conclusions. Acupuncture is effective in improving cognitive functions in AD animal models, and this benefit is more than just a placebo effect. Further clinical trials are needed to confirm the findings.

scholarly journals Mesenchymal Stem Cells for the Treatment of Intestinal Ischemia-reperfusion Injury: a Protocol of Systematic Review and Meta-analysis of Animal Models

2021 ◽  
Author(s):  
Guangru Zhang ◽  
Shenghong Suo ◽  
Zhenzhen Liu ◽  
Disheng Liu ◽  
Zhiyu Zhao ◽  
...  
Keyword(s):  
Systematic Review ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Animal Models ◽  
Intestinal Ischemia ◽  
Ischemia Reperfusion ◽  
Meta Analysis ◽  
Mean Difference ◽  
Clinical Event ◽  
Intestinal Ischemia Reperfusion

Abstract Introduction: Intestinal ischemia-reperfusion (I/R) injury is a common clinical event. Mesenchymal stem cells (MSCs) have been widely used to repair intestinal injury in animal models. However, the effects of MSCs on intestinal I/R injury therapy remain unclear. Thus, we will perform a systematic review and meta-analysis of controlled trials to evaluate the efficacy of MSCs in animal models of intestinal I/R injury.Methods and analysis: We will search PubMed, Web of Science, Embase, Cochrane Library, Science Citation Index, China National Knowledge Information database, Wanfang Database, and the Chinese Scientific and Technological Journal Database in May 2021. We will include studies that evaluate the two different interventions for target MSCs to be maintained for the degree of histopathologic changes, mortality rate of rats, tumour necrosis factor α, and diamine oxidase. Two reviewers will independently screen titles and abstracts, perform a full article review, and extract study data. We will also use the SYRCLE tool to assess the risk of bias in the included studies. Furthermore, a random-effects meta-analysis will be conducted. Dichotomous and continuous outcomes will be analysed using risk ratios with 95% confidence intervals (CIs) and weighted mean difference with 95% CIs, respectively. For outcomes where different scales or different measurement methods have been used, the standardised mean difference will be applied. Subgroup and sensitivity analyses will be performed to explore the heterogeneity. Stata (version 12.0, Stata Corp, College Station, Texas, USA) will be used to analyse and pool the individual research results.Ethics and dissemination: This systematic review and meta-analysis does not require an ethical approval because no human beings are involved. We aim to publish this systematic review in a peer-reviewed journal.PROSPERO registration number: CRD42021231826

scholarly journals Effectiveness of mesenchymal stem cell-conditioned medium in bone regeneration in animal and human models: a systematic review and meta-analysis

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Maria Paula Benavides-Castellanos ◽  
Nathaly Garzón-Orjuela ◽  
Itali Linero
Keyword(s):  
Systematic Review ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Animal Models ◽  
Conditioned Medium ◽  
Meta Analysis ◽  
Bone Defects ◽  
Favorable Effect ◽  
Human Models ◽  
Regeneration Of Bone

Abstract Background Given the limitations of current therapies for the reconstruction of bone defects, regenerative medicine has arisen as a new therapeutic strategy along with mesenchymal stem cells (MSCs), which, because of their osteogenic potential and immunomodulatory properties, have emerged as a promising alternative for the treatment of bone injuries. In vivo studies have demonstrated that MSCs have a positive effect on regeneration due to their secretion of cytokines and growth factors that, when collected in conditioned medium (MSC-CM) and applied to an injured tissue, can modulate and promote the formation of new tissue. Objective To evaluate the effectiveness of application of conditioned medium derived from mesenchymal stem cells in bone regeneration in animal and human models. Methods We conducted a systematic review with a comprehensive search through February of 2018 using several electronic databases (MEDLINE, EMBASE, SCOPUS, CENTRAL (Ovid), and LILACS), and we also used the “snowballing technique”. Articles that met the inclusion criteria were selected through abstract review and subsequent assessment of the full text. We assessed the risk of bias with the SYRCLE and Cochrane tools, and three meta-analyses were performed. Results We included 21 articles, 19 of which used animal models and 2 of which used human models. In animal models, the application of MSC-CM significantly increased the regeneration of bone defects in comparison with control groups. Human studies reported early mineralization in regenerated bones, and no bone resorption, inflammation, nor local or systemic alterations were observed in any case. The meta-analysis showed an overall favorable effect of the application of MSC-CM. Conclusions The application of MSC-CM to bone defects has a positive and favorable effect on the repair and regeneration of bone tissue, particularly in animal models. It is necessary to perform additional studies to support the application of MSC-CM in clinical practice.

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