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Cell and Developmental Biology 细胞与发育生物学
Pub Date : 2020-01-01 DOI: 10.35248/2168-9296.2020.9.E003
M. Rajam
Cell & Developmental Biology (CDB) is a broad-scope, official peer reviewed journal that publishes innovative research, which welcomes submissions on a wide spectrum of cell and developmental biology. With a collaborative, rigorous and transparent peer-review, the journal produces the highest scientific quality in both fundamental and applied research, and advanced article-level metrics measure the real-time impact and influence of each publication, led by Prof LU Da-Yong and supported by a geographically diverse, highquality editorial board.
《细胞与发育生物学》(Cell & Developmental Biology, CDB)是一份范围广泛的官方同行评议期刊,发表创新研究,欢迎在广泛的细胞和发育生物学领域提交论文。通过合作、严格和透明的同行评议,该杂志在基础和应用研究方面都产生了最高的科学质量,并采用先进的文章级指标衡量每篇文章的实时影响和影响力,由陆大勇教授领导,并由一个地理分布广泛、高质量的编辑委员会提供支持。
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引用次数: 0
Stem Cell Skin Gun Developed for Wound Treatment 干细胞皮肤枪用于伤口治疗
Pub Date : 2020-01-01 DOI: 10.35248/2168-9296.20.9.205
G. Nikitha
The weapon splashes a arrangement of cells and water onto harmed skin. While the device is still in its early prototype stages it has successfully treated about a dozen patients in Germany and the U.S. final prototype will hopefully be ready in a few months so it can be tested under clinical trials. Skin cell spraying is not new, it was invented around 20 years ago in Argentina. It is also performed in Australia, it is an electronically, processor- controlled pneumatic device that does not injure the cells during spraying. In the event that a understanding arrives at a clinic lost a sizable parcel of skin, specialists take a test from a sound piece of skin and confine cells, counting stem cells. Then the skin gun comes into play. A specialist loads the stem cells into a sterile syringe, loads the syringe into the spout like a cartridge and splashes the cells specifically onto the wound. The weapon showers stem cells that have been collected from a little, lean layer of skin that has been united from patient’s claim sound skin. The method takes around 90 minutes. Among the modest bunch of patients tried, the beginning recuperating of the wound happened inside two weeks compared to conventional medications, which take months and posture a hazard for patients passing on of disease.
这种武器会将细胞和水溅到受伤的皮肤上。虽然该设备仍处于早期的原型阶段,但它已经在德国和美国成功地治疗了大约12名患者,最终的原型有望在几个月内准备好,以便进行临床试验。皮肤细胞喷雾并不新鲜,大约20年前在阿根廷发明了它。它也是在澳大利亚进行的,它是一个电子,处理器控制的气动装置,在喷涂过程中不会伤害细胞。如果一个诊所发现丢失了一块相当大的皮肤,专家们会从一块完好的皮肤上进行测试,并限制细胞,计数干细胞。然后皮肤枪开始发挥作用。专家将干细胞装入无菌注射器,将注射器装入像药筒一样的喷嘴,然后将细胞特异性地喷洒在伤口上。武器阵雨是从病人声称完好的皮肤上分离出来的一小层皮肤上收集的干细胞。这个方法大约需要90分钟。在接受过治疗的少数患者中,伤口在两周内开始恢复,而传统药物需要几个月的时间,而且对患者的疾病传播有危险。
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引用次数: 0
Plasma cells Autoantibodies and antibody secreting cells 浆细胞自身抗体和抗体分泌细胞
Pub Date : 2020-01-01 DOI: 10.35248/2168-9296.2020.9.209
D. Karuna
Plasma cells are specialized terminally separated B cells that synthesize and emit antibodies to preserve humoral insusceptibility. By the generation of pathogenic antibodies, plasma cells contribute to the advancement of numerous conditions, such as immune system clutters, transplant dismissal and hypersensitivities. Two diverse plasma cell compartments can freely produce distinctive sorts of pathogenic antibodies: (1) short-lived plasmablasts (multiplying forerunners of develop plasma cells) and plasma cells, which live as it were as long as B cells are enacted. Subsequently, these cells cause malady flares that react to immunosuppressive drugs and B cell focusing on treatments. (2) Long-lived non-proliferating memory plasma cells, which survive in specialties in bone marrow and kindled tissues for months, a long time or a lifetime autonomous of B or T cell offer assistance or antigen contact.
浆细胞是一种特殊的终末分离的B细胞,它们合成并释放抗体以保持体液的不敏感性。通过产生致病抗体,浆细胞有助于许多疾病的进展,如免疫系统混乱,移植排斥和超敏反应。两种不同的浆细胞区室可以自由地产生不同种类的致病抗体:(1)短寿命的浆母细胞(发育浆细胞的增殖前体)和浆细胞,只要B细胞存在,浆细胞就会一直存在。随后,这些细胞引起疾病发作,对免疫抑制药物和专注于治疗的B细胞产生反应。(2)长寿命的非增殖记忆浆细胞,在骨髓和点燃组织中存活数月,长时间或终生自主的B细胞或T细胞提供协助或抗原接触。
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引用次数: 0
Virus-Induced Aggregates in Infected Cells 感染细胞中病毒诱导的聚集体
Pub Date : 2020-01-01 DOI: 10.35248/2168-9296.20.9.213
V. Saritha
Amid disease, numerous infections actuate cellular remodelling, coming about within the arrangement of insoluble aggregates/inclusions, ordinarily containing viral basic proteins. Recognizable proof of totals has ended up a valuable demonstrative instrument for certain viral contaminations. There's wide assortment of viral totals, which vary by their area, estimate, substance and putative work. The part of accumulation within the context of a particular infection is frequently ineffectively caught on, particularly within the case of plant infections. The totals are utilized by infections to house a expansive complex of proteins of both viral and have root to advance infection replication, interpretation, intra- and intercellular transportation. Amassed structures may secure viral utilitarian complexes from the cellular corruption apparatus. On the other hand, the actuation of have defence components may include sequestration of infection components in totals, taken after by their neutralization as poisonous for the have cell. The diversity of virus-induced aggregates in mammalian and plant cells is the subject of this review.
在疾病中,许多感染驱动细胞重塑,发生在不溶性聚集体/包涵体的排列中,通常含有病毒基本蛋白。可识别的总数证明最终成为某些病毒污染的有价值的示范工具。有各种各样的病毒总数,不同的面积,估计,实质和假定的工作。在特定感染的背景下,积累的部分经常被无效地抓住,特别是在植物感染的情况下。感染利用总蛋白来容纳大量病毒蛋白复合物,并从根本上促进感染的复制、解释、细胞内和细胞间运输。积聚的结构可以使病毒的功利复合体免受细胞腐蚀装置的侵害。另一方面,免疫防御成分的激活可能包括对感染成分的总体隔离,随后它们被中和为对免疫细胞有毒。本文综述了哺乳动物和植物细胞中病毒诱导聚集体的多样性。
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引用次数: 0
Balanced Chromatin within the Germ (Human) Line 在胚芽(人类)系内平衡染色质
Pub Date : 2020-01-01 DOI: 10.35248/2168-9296.20.9.210
S. Varma
Poised (bivalent) chromatin is characterized by the concurrent nearness of histone adjustments related with both quality enactment and suppression. This epigenetic include was to begin with watched at promoters of lineagespecific administrative qualities in embryonic stem cells in culture. More later work has appeared that, in vivo, mammalian germ cells keep up balanced chromatin at promoters of numerous qualities that direct substantial advancement, which they hold this state from fetal stages through meiosis and gametogenesis. We hypothesize that the balanced chromatin state is fundamental for germ cell personality and work. We propose three parts for poised chromatin within the mammalian germ line: anticipation of DNA methylation, upkeep of germ cell character and preparation for totipotency. We talk about these parts within the setting of as of late proposed models for germline power and epigenetic legacy.
平衡(二价)染色质的特点是与质量制定和抑制相关的组蛋白调节同时接近。这种表观遗传包括从观察培养的胚胎干细胞谱系特异性管理品质的启动子开始。后来的研究表明,在体内,哺乳动物生殖细胞在多种品质的启动子上保持着染色质的平衡,这些品质直接导致了实质性的进展,它们从胎儿阶段到减数分裂和配子体发生都保持着这种状态。我们假设,平衡的染色质状态是生殖细胞人格和工作的基础。我们提出了哺乳动物生殖系中染色质平衡的三个部分:DNA甲基化的预期、生殖细胞特性的维持和全能性的准备。我们在最近提出的种系能力和表观遗传遗产模型的背景下讨论这些部分。
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引用次数: 0
Severe Acute Respiratory Syndrome – Coronavirus-2 (SARS-CoV-2; Coronavirus Disease-19): An overview of Structure, Clinical Features, Diagnosis and Treatment 严重急性呼吸系统综合征-冠状病毒2 (SARS-CoV-2);冠状病毒病(19):结构、临床特征、诊断与治疗综述
Pub Date : 2020-01-01 DOI: 10.35248/2168-9296.20.9.214
M. Arifuzzaman, F. Hasan
Coronavirus disease-2019 (COVID-19) has spread globally since its discovery in Hubei province, China in December 2019. It has already been announced as a pandemic disease by world health organization (WHO). This disease is caused by severe acute respiratory syndrome corona virus-2 (SARS-CoV-2), which is an enveloped RNA virus and highly contagious. This is a new coronavirus, still changing, and put the scientific authority in a puzzle. The fatality rate of COVID-19 is higher compared to other coronavirus diseases such as severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS). The outbreak of COVID-19 has created a severe threat to public health across the world. In this review, we render an overview of COVID-19 disease such as origin and pathogenesis of SARS-CoV-2, clinical manifestations along with complications, diagnosis and treatment actions as well as preventive measures to control viral transmission.
冠状病毒病2019 (COVID-19)自2019年12月在中国湖北省被发现以来,已在全球传播。它已被世界卫生组织(WHO)宣布为大流行疾病。该病由严重急性呼吸综合征冠状病毒-2 (SARS-CoV-2)引起,这是一种包膜RNA病毒,具有高度传染性。这是一种仍在变化的新型冠状病毒,这让科学权威感到困惑。COVID-19的致死率高于其他冠状病毒疾病,如严重急性呼吸综合征(SARS)和中东呼吸综合征(MERS)。新冠肺炎疫情对全球公共卫生构成严重威胁。本文就SARS-CoV-2的起源、发病机制、临床表现及并发症、诊治措施、控制病毒传播的预防措施等方面进行综述。
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引用次数: 0
Immunotoxicological Investigation of The Intracranial Auditory Centers In Pyrethroids Formulation Treated Wistar Rat 拟除虫菊酯制剂对Wistar大鼠颅内听觉中枢的免疫毒理学研究
Pub Date : 2020-01-01 DOI: 10.35248/2168-9296.20.9.202
K. Iteire, Adejumo A Adenike, Tebamifor T Witness, O. Oyiborhoro
Purpose: The use of pesticides and their potential impact on public health are of great concern. Recent studies on the pathophysiology of neurodegenerative diseases have suggested that chronic exposure to pyrethroids could be associated with alterations in the central auditory pathways. This study was therefore aimed at evaluating the neurotoxicity of pyrethroids on the intracranial auditory relay-centers in adult wistar rats. Methods: Forty adult wistar rats of both sexes with average weight of 180g were assigned into five groups (n=8). Groups A, B, and C were treated with known pyrethroids formulation containing Cyfluthrin, Imiprothrin, and Prallethrin, diluted with olive oil to form 25%, 50% and 75% concentrations. Groups D and E were administered distilled water and olive oil once treatment negative and positive controls, respectively. The treatment lasted for duration of forty days. At the end of the duration, all animals were sacrificed by cervical dislocation, after which the inferior colliculi (IC), medial geniculate bodies (MGB) and cerebellum were harvested for histology and immuno histochemistry using calbindin and palvalbumin antibodies. Results: Histologically, there was slight degeneration of neuronal cells and vacuolated cytoplasm, dispersed distribution of nissl bodies in several cells of MGB and IC of the treated groups compared to the controls. In the cerebellum, there was abnormal proliferation of cells in the purkinje layer with poor distribution of nissl bodies when compared to control groups. Immuno histochemistry further revealed decreased immuno-reactivity of Calbindin2 and Parvalbumin in the treated tissues compared to the control groups. Conclusion: Pyrethroids influences motor coordination and balance of rats, and also the function of the auditory relay-centres.
目的:农药的使用及其对公众健康的潜在影响令人非常关注。最近关于神经退行性疾病病理生理学的研究表明,长期接触拟除虫菊酯可能与中枢听觉通路的改变有关。因此,本研究旨在评估拟除虫菊酯对成年wistar大鼠颅内听觉传递中枢的神经毒性。方法:取平均体重180g的成年wistar大鼠40只,随机分为5组(n=8)。A、B和C组使用含有氟氰菊酯、亚氰菊酯和氯丙菊酯的已知拟除虫菊酯制剂,用橄榄油稀释成25%、50%和75%的浓度。D组和E组分别给予1次蒸馏水和橄榄油作为阴性对照和阳性对照。治疗时间为40天。实验结束后,采用颈椎脱位法处死大鼠,取下丘(IC)、内侧膝状体(MGB)和小脑,用calbindin和palvalbumin抗体进行组织学和免疫组化检测。结果:在组织学上,与对照组相比,MGB和IC治疗组的神经元细胞有轻微变性,细胞质有空泡化,部分细胞有分散分布的尼氏体。小脑浦肯野层细胞增生异常,尼氏体分布较对照组差。免疫组织化学进一步显示,与对照组相比,处理组织中Calbindin2和Parvalbumin的免疫反应性降低。结论:拟除虫菊酯对大鼠运动协调、平衡及听觉传递中枢功能有影响。
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引用次数: 1
Tissue Banking and Transplantation: Role of Governments, International Organizations, and Regional Professional Associations 组织库和移植:政府、国际组织和区域专业协会的作用
Pub Date : 2019-12-31 DOI: 10.36959/596/445
Capolupo Gt, G. Mascianá, M. Caricato
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引用次数: 0
The Will to Bud 发芽的意志
Pub Date : 2019-01-01 DOI: 10.24105/2168-9296.2019.8.200
S. Shostak
The separation of the somatic and germ lines in biology is a classic case of finding differences where there are none. August Weismann [1,2] can be blamed for claiming a fundamental difference between an immortal germ line and a mortal somatic line, but germ cells, like somatic cells live and die in a mortal context. The germ line is a tissue that gives rise to sex cells much like somatic lines give rise to their somatic products. Those germ cells that undergo meiosis and successful fertilization start new somatic and germ lines (i.e., the differentiation of cell lines including germ cells) and so do unfertilized eggs developing parthenogenically in plants and a variety of animals including amphibians, reptiles, and birds [3].
生物学中体细胞系和生殖系的分离是一个在没有差异的地方发现差异的经典案例。奥古斯特·魏斯曼(August Weismann)[1,2]声称不朽的生殖细胞系和会死的体细胞系之间存在根本区别,这应该受到指责,但生殖细胞和体细胞一样,是在会死的环境中生存和死亡的。生殖系是一种产生性细胞的组织,就像体细胞系产生体细胞产物一样。那些经过减数分裂并成功受精的生殖细胞开始新的体细胞和生殖系(即包括生殖细胞在内的细胞系的分化),在植物和包括两栖动物、爬行动物和鸟类在内的多种动物中,未受精卵也通过孤雌生殖发育[3]。
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引用次数: 0
On the Ambiguity of Firsts: Symbiogeny and Evolutionary Creativity 论第一的模糊性:共生与进化创造
Pub Date : 2019-01-01 DOI: 10.24105/2168-9296.2019.8.199
S. Shostak
I want to take issue with static concepts of origins. Predecessors of what exists at present are not necessarily what came first. It isn’t as if the problem of identifying origins is unique to biology. Western culture is dominated by concepts of origins firmly rooted in the present. Historically, Western religions have assigned priority to what exists by anointing it with attributes of origins and characterizing these attributes as fundamental. God, after all, is said to have created man in his image amounting to a first among firsts. At the expense of God’s image, symgiogeny theory flies in the face of the rule that what is must have its origin in something similar that came before. My object here is to examine how originary prejudices distort questions of origins and the attributes of ancestors. I’m especially eager to strip away notions of original characteristics from present organisms. I want to imagine what was different in the past.
我想对起源的静态概念提出质疑。现存事物的前身并不一定是最先出现的事物。确定起源的问题似乎并不是生物学所独有的。西方文化被牢牢扎根于当下的起源概念所主导。从历史上看,西方宗教通过赋予其起源属性并将这些属性定性为基本属性来优先考虑存在的事物。毕竟,据说上帝是按照自己的形象创造了人,使他成为第一中的第一。以牺牲上帝的形象为代价,同系性理论公然违背了这样的规则,即现在的东西必须起源于之前类似的东西。我在这里的目的是研究最初的偏见是如何扭曲起源和祖先属性的问题的。我特别渴望从现存的生物体中剥离出原始特征的概念。我想想象一下过去有什么不同。
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引用次数: 1
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Cell & developmental biology
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