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The find of COVID-19 vaccine: Challenges and opportunities.

新型冠状病毒肺炎疫苗的发现: 挑战与机遇.

  • 影响因子:2.09
  • DOI:10.1016/j.jiph.2020.12.025
  • 作者列表:"ElBagoury M","Tolba MM","Nasser HA","Jabbar A","Elagouz AM","Aktham Y","Hutchinson A
  • 发表时间:2021-03-01
Abstract

:Severe acute respiratory syndrome coronavirus (SARS-CoV-2), a novel corona virus, causing COVID-19 with Flu-like symptoms is the first alarming pandemic of the third millennium. SARS-CoV-2 belongs to beta coronavirus as Middle East respiratory syndrome coronavirus (MERS-CoV). Pandemic COVID-19 owes devastating mortality and destructively exceptional consequences on Socio-Economics life around the world. Therefore, the current review is redirected to the scientific community to owe comprehensive visualization about SARS-CoV-2 to tackle the current pandemic. As systematically shown through the current review, it indexes unmet medical problem of COVID-19 in view of public health and vaccination discovery for the infectious SARS-CoV-2; it is currently under-investigational therapeutic protocols, and next possible vaccines. Furthermore, the review extensively reports the precautionary measures to achieve" COVID-19/Flatten the curve". It is concluded that vaccines formulation within exceptional no time in this pandemic is highly recommended, via following the same protocols of previous pandemics; MERS-CoV and SARS-CoV, and excluding some initial steps of vaccination development process.

摘要

: 严重急性呼吸综合征冠状病毒 (SARS-CoV-2),一种新型冠状病毒,导致新型冠状病毒肺炎流感样症状,是第三个千年第一个令人震惊的大流行。SARS-CoV-2作为中东呼吸综合征冠状病毒冠状病毒 (MERS-CoV) 属于 β 冠状病毒。新型冠状病毒肺炎大流行造成了毁灭性的死亡,并对世界各地的社会经济生活造成了破坏性的特殊后果。因此,目前的审查被重定向到科学界,以便在SARS-CoV-2左右全面可视化以应对当前的大流行病。正如当前审查系统显示的那样,鉴于公共卫生和疫苗接种发现的传染性新型冠状病毒肺炎,它将SARS-CoV-2的未解决的医学问题作为指标; 它目前是研究不足的治疗方案,以及下一个可能的疫苗。此外,审查广泛报告了实现 “新型冠状病毒肺炎/拉平曲线” 的预防措施。结论是,强烈建议在本次大流行的特殊时间内配制疫苗,方法是遵循与以往大流行相同的方案; MERS-CoV和传染性非典型肺炎-CoV,并排除疫苗接种开发过程的一些初始步骤。

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发表时间:2021-02-01
DOI:10.1007/s11033-021-06155-w
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影响因子:2.68
发表时间:2021-02-01
DOI:10.1080/14656566.2020.1814255
作者列表:["Sawada H","Oeda T","Kohsaka M","Tomita S","Umemura A","Park K","Yamamoto K","Kiyohara K"]

METHODS:BACKGROUND:Cholinergic neurotransmission regulates neuroinflammation in Parkinson disease (PD). RESEARCH DESIGN AND METHODS:The authors conducted a delayed-start study of donepezil for cognitive decline in non-demented PD patients. The study consisted of a 96-week randomized placebo-controlled double-blind phase 1, followed by a 24-week donepezil extension phase 2. The primary outcome measure was a change in the Mini-Mental State Examination (MMSE) at week 120. RESULTS:A total of 98 patients were randomly allocated to the early-start (donepezil-to-donepezil) and delayed-start (placebo-to-donepezil) groups. Mean (SD) of the baseline MMSE was 27.6 (2.0) and 28.0 (2.1), respectively. MMSE change at week 120 was better in the early-start group than in the delayed-start group, but the difference was not significant. The MMSE declined in apolipoprotein ε4 carriers, but not in non-carriers, and the factor interaction (intervention × ε4 genotype) was highly significant (P < 0.001). Analyzed with the interaction, the difference was significant (group difference 1.95 [0.33 to 3.57], P = 0.018). The MMSE decline slope in phase 1 was significantly better in the early-start group than in the delayed-start group (P = 0.048). CONCLUSIONS:Cognitive function deteriorated in ε4 carriers, but not in non-carriers, and early-start donepezil may postpone cognitive decline in the former.

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影响因子:2.06
发表时间:2021-03-24
DOI:10.1007/s11033-021-06299-9
作者列表:["Louvrier A","Terranova L","Meyer C","Meyer F","Euvrard E","Kroemer M","Rolin G"]

METHODS::Since the discovery of dental pulp stem cells, a lot of teams have expressed an interest in dental pulp regeneration. Many approaches, experimental models and biological explorations have been developed, each including the use of stem cells and scaffolds with the final goal being clinical application in humans. In this review, the authors' objective was to compare the experimental models and strategies used for the development of biomaterials for tissue engineering of dental pulp with stem cells. Electronic queries were conducted on PubMed using the following terms: pulp regeneration, scaffold, stem cells, tissue engineering and biomaterial. The extracted data included the following information: the strategy envisaged, the type of stem cells, the experimental models, the exploration or analysis methods, the cytotoxicity or viability or proliferation cellular tests, the tests of scaffold antibacterial properties and take into account the vascularization of the regenerated dental pulp. From the 71 selected articles, 59% focused on the "cell-transplantation" strategy, 82% used in vitro experimentation, 58% in vivo animal models and only one described an in vivo in situ human clinical study. 87% used dental pulp stem cells. A majority of the studies reported histology (75%) and immunohistochemistry explorations (66%). 73% mentioned the use of cytotoxicity, proliferation or viability tests. 48% took vascularization into account but only 6% studied the antibacterial properties of the scaffolds. This article gives an overview of the methods used to regenerate dental pulp from stem cells and should help researchers create the best development strategies for research in this field.

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