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Analysis of hydraulic drive circuit selection for a carrot collecting system 胡萝卜收集系统液压驱动电路选择分析
Pub Date : 2024-03-15 DOI: 10.31276/vjste.66(1).16-23
Ngoc Danh Dang, Xuan Thiet Nguyen
Compared to conventional mechanical transmissions, hydraulic transmission has the disadvantage of lower energy efficiency. However, it is widely employed in various working machines such as construction machines, off-road vehicles, forest logging machines, and especially agricultural machinery, owing to its flexibility in design, geometric arrangement, and simplicity in operation. In the development project for carrot harvesting machinery conjugate, hydraulic transmission is the optimal solution for the design and implementation of the carrot collecting roller system. This project is oriented towards achieving a practical result where the system structure is simple and effective, utilising hydraulic components available on the market in Vietnam. Given the myriad of hydraulic transmission circuits available, this paper undertakes an analysis based on numerical simulations of the functionality and energy efficiency of potential system design options and proposes a new practical speed control circuit. This suggested circuit uses a pressure-compensated flow control valve arranged parallel to the hydraulic motor. The study is carried out in the Matlab/Simulink simulation environment, where the circuit models are constructed using hydraulic components with practical parameter settings sourced from component suppliers. The analysis results indicate that the proposed circuit strikes a balance between functionality and economic efficiency.
与传统的机械传动相比,液力传动的缺点是能效较低。然而,由于其设计灵活、几何排列和操作简单,它被广泛应用于各种工作机械,如建筑机械、越野车、森林伐木机械,特别是农业机械。在胡萝卜收获机械组合的开发项目中,液压传动是设计和实施胡萝卜收集滚筒系统的最佳解决方案。该项目旨在利用越南市场上现有的液压元件,实现系统结构简单有效的实用结果。鉴于液压传动回路种类繁多,本文基于数值模拟对潜在系统设计方案的功能和能效进行了分析,并提出了一种新的实用速度控制回路。该建议电路使用一个与液压马达平行布置的压力补偿流量控制阀。研究是在 Matlab/Simulink 仿真环境中进行的,其中的电路模型是使用液压元件构建的,其实际参数设置来自元件供应商。分析结果表明,建议的电路在功能性和经济效益之间取得了平衡。
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引用次数: 0
RNA isolation by two different methods in analysing adipose-biomarkers of mouse adipose tissues 用两种不同方法分离 RNA,分析小鼠脂肪组织的脂肪生物标志物
Pub Date : 2024-03-15 DOI: 10.31276/vjste.66(1).84-89
D. Chu, Hue Vu Thi, Ngoc Hoan Le
The RNeasy Mini Kit and the TRI Reagent protocol are commonly employed techniques for extracting total RNA and are widely utilised in research pertaining to the expression of adipose biomarkers. This study was undertaken to establish and determine an appropriate method for isolating RNA from frozen adipose tissue, with the objective of analysing adipose biomarkers. Total RNA was extracted from frozen white adipose tissues of mice (-80oC) using both the RNeasy Mini Kit and the TRI Reagent protocol. The concentration and purity of the RNA were assessed using NanoDrop. One-step RT-qPCR was employed to quantify the mRNA expression levels of three adipose biomarkers: MEST, SFRP5, and SCD1. The results of this investigation indicated that the RNeasy Mini Kit yielded a higher RNA concentration when compared to the TRI Reagent method. Furthermore, the RNeasy Mini Kit provided RNA samples with superior purity, as evidenced by a higher 260/230 ratio. Although RNA extracted using the TRI Reagent exhibited slightly elevated mRNA expression levels for the three biomarkers, these differences did not reach statistical significance. In summary, both methods are suitable for total RNA extraction, but the RNeasy Mini Kit is recommended for obtaining higher RNA concentration and purity. The choice of method should be contingent upon the intended downstream application of the RNA.
RNeasy Mini Kit 和 TRI Reagent 协议是提取总 RNA 的常用技术,在有关脂肪生物标志物表达的研究中被广泛使用。本研究旨在建立和确定从冷冻脂肪组织中分离 RNA 的适当方法,目的是分析脂肪生物标志物。研究人员使用 RNeasy Mini Kit 和 TRI Reagent 方法从冷冻的小鼠白色脂肪组织(-80oC)中提取总 RNA。使用 NanoDrop 对 RNA 的浓度和纯度进行了评估。采用一步式 RT-qPCR 对三种脂肪生物标志物的 mRNA 表达水平进行量化:MEST、SFRP5 和 SCD1。研究结果表明,与 TRI 试剂法相比,RNeasy Mini 试剂盒产生的 RNA 浓度更高。此外,RNeasy Mini 试剂盒提供的 RNA 样品纯度更高,260/230 比率也更高。虽然使用 TRI 试剂提取的 RNA 在三种生物标志物的 mRNA 表达水平上略有升高,但这些差异未达到统计学意义。总之,两种方法都适用于总 RNA 提取,但建议使用 RNeasy Mini 试剂盒来获得更高的 RNA 浓度和纯度。选择哪种方法应根据 RNA 的下游应用而定。
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引用次数: 0
Vietnamese cassava varieties progression across 50 years 越南木薯品种跨越 50 年的进步
Pub Date : 2024-03-15 DOI: 10.31276/vjste.66(1).59-76
Long Hoang, Mai T. T. Nguyen, D. N. Nguyen, Kim Hoang, Clair Hershey, R. Howeler
Vietnamese cassava varieties constitute the fundamental and pivotal element in the sustainable development programme for cassava. This article aims to encapsulate the advancements made over nearly five decades in breeding and enhancing Vietnamese cassava varieties. It delineates the suitable cassava variety structures for each period and ecological region. The selection of cassava varieties exhibiting high starch yield and disease resistance, coupled with the establishment of a suitable and efficient cassava cultivation model, exemplified by 10T for Vietnamese cassava varieties KM568, KM539, KM537, KM569, and KM94, stands as a cornerstone for sustaining cassava development over the years. Presently, we advocate for farmers to cultivate promising cassava varieties such as KM568 or KM539 (an enhanced version of the International Center for Tropical Agriculture (CIAT) cassava variety C39, refined through multiple breeding cycles from 2004 onwards), KM537, KM569, or HN1 (originally known as TMEB419), alongside popular cassava varieties: KM440, KM419, KM94, KM7, STB1, KM414, KM98-7, KM140, KM98-5, KM98-1. We have conducted Distinctness, Uniformity, and Stability (DUS) and Value for Cultivation and Use (VCU) tests, showcasing outstanding cassava varieties in large-scale farming, thereby providing compelling evidence for the prudent conservation and sustainable development of cassava. Vietnamese cassava progression (1975 to date) has traversed six stages, with five waves of restructuring cassava varieties, aligning with target orientations, farming conditions, and market demands, culminating in 16 popular cassava varieties and four promising cassava varieties KM568, KM539, KM537, and KM569.
越南木薯品种是木薯可持续发展计划的基础和关键要素。本文旨在总结近五十年来越南木薯品种培育和改良方面取得的进展。它描述了每个时期和生态区域适合的木薯品种结构。以越南木薯品种 KM568、KM539、KM537、KM569 和 KM94 的 "10T "为例,选育出淀粉产量高、抗病性强的木薯品种,并建立起适宜、高效的木薯栽培模式,是多年来木薯持续发展的基石。目前,我们提倡农民种植有前景的木薯品种,如 KM568 或 KM539(国际热带农业中心(CIAT)木薯品种 C39 的加强版,从 2004 年起经过多个育种周期改良)、KM537、KM569 或 HN1(原名 TMEB419),以及流行的木薯品种:KM440、KM419、KM94、KM7、STB1、KM414、KM98-7、KM140、KM98-5、KM98-1。我们进行了木薯的独特性、均匀性和稳定性(DUS)以及栽培和使用价值(VCU)测试,展示了在大规模种植中的优秀木薯品种,从而为木薯的谨慎保护和可持续发展提供了令人信服的证据。越南木薯的发展(1975 年至今)经历了六个阶段,根据目标定位、耕作条件和市场需求,木薯品种结构调整经历了五次浪潮,最终形成了 16 个受欢迎的木薯品种和 4 个有前途的木薯品种 KM568、KM539、KM537 和 KM569。
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引用次数: 0
Analysis of the mitochondrial genome and phylogenetic relationships of Mong chicken 勐鸡线粒体基因组和系统发育关系分析
Pub Date : 2024-02-25 DOI: 10.31276/vjst.66(2).44-48
Thi Thanh Nhan Giang, Thi Phuong Mai Pham, Van Ba Nguyen, Thi Thu Thuy Tran, Thi Quynh Chau Nguyen, Thi Hau Tran, T. A. Hoang, Khanh Van Nguyen, Q. M. Luu, Doan Lan Pham
In this study, the complete nucleotide sequence of the mitochondrial genome of the Mong chicken and an indigenous chicken breed of Vietnam, was determined by the Sanger sequencing method, structurally analysed and used to evaluate the phylogenetic relationship with different chicken breeds. The complete nucleotide sequence data of the Mong chicken’ mitochondrial genome was registered on GenBank with the accession number OR643716. The Mong chicken’ mitochondrial genome has a size of 16785 base pair (bp) and includes 22 transfer RNA genes, two ribosomal RNA genes, 13 protein-coding genes, and one non-coding control region (D-loop). A, T, G, and C nucleotide proportions were 30.28, 23.76, 13.48, and 32.48%, respectively. Results of the analysis of phylogenetic relationships based on 33 complete mitochondrial genome sequences showed that the Mong chicken has evolutional origin from the red junglefowl subspecies Gallus gallus spadiceus. The Mong chicken is in close relationship with the Dong Tao chicken and Cao Son dwarf chicken in Vietnam, Rugao yellow chicken and Xiaoxiang chicken in China.
本研究采用桑格测序法测定了越南本土鸡种勐鸡线粒体基因组的完整核苷酸序列,并对其进行了结构分析,以评估其与不同鸡种的系统发育关系。勐鸡线粒体基因组的完整核苷酸序列数据已在 GenBank 上注册,登录号为 OR643716。勐鸡线粒体基因组大小为 16785 碱基对(bp),包括 22 个转运 RNA 基因、2 个核糖体 RNA 基因、13 个蛋白编码基因和 1 个非编码控制区(D-环)。A、T、G和C核苷酸比例分别为30.28%、23.76%、13.48%和32.48%。基于 33 个完整线粒体基因组序列的系统进化关系分析结果表明,勐鸡的进化起源于红色丛林鸡亚种 Gallus gallus spadiceus。勐鸡与越南的东陶鸡和高山矮脚鸡、中国的如皋黄鸡和潇湘鸡关系密切。
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引用次数: 0
A survey on the composition and occurrence frequency of arbuscular mycorrhizal fungi in rhizospheric soils and roots of vegetables grown in Ho Chi Minh city 胡志明市种植的蔬菜根瘤土壤和根中的丛枝菌根真菌组成和出现频率调查
Pub Date : 2024-02-25 DOI: 10.31276/vjst.66(2).60-65
Phuoc Thien Hoang Truong, Thi Thao Nhu Le, Hoang Phuc Le, Trong Nghia Tran, Uyen Tran Da Dao
The study aimed to determine the presence and composition of arbuscular mycorrhizal fungi (AMF) in the rhizospheric soils and roots of vegetable plants (14 species of leafy vegetables) grown in Hoc Mon, Cu Chi, and Binh Chanh districts, Ho Chi Minh city. The results of the isolation of AMF spores based on the wet sieving method showed the presence of AMF in the rhizospheric soils of vegetables with an average spore density of 87.6 spores/50 g of soil. For the symbiotic ratio of AMF to the root tissues, there was no symbiosis in 4 vegetable crops, including amaranth, mustard green, leaf mustard, and bok choy. Still, there was symbiosis in the remaining 10 plants, with an average symbiotic rate of 6.6%. Identification of AMF spores based on the morphological characteristics recorded in all the soil samples appeared spore phenotypes of 5 fungal genera including Glomus, Acaulospora, Gigaspora, Scutellospora, and Sclerocystis. However, 3 morphological types were not yet identified. From the obtained results, two genera, Glomus and Acaulospora, have the highest frequency at 43.9 and 39.6%, respectively.
该研究旨在确定胡志明市 Hoc Mon、Cu Chi 和 Binh Chanh 三县种植的蔬菜植物(14 种叶菜)根瘤土壤和根中是否存在丛枝菌根真菌(AMF)及其组成。根据湿筛法分离 AMF 孢子的结果显示,蔬菜根瘤土壤中存在 AMF,平均孢子密度为 87.6 个孢子/50 克土壤。就 AMF 与根系组织的共生比例而言,4 种蔬菜作物(包括苋菜、芥菜、叶芥和大白菜)中没有共生。但其余 10 种植物有共生现象,平均共生率为 6.6%。根据所有土壤样本中记录的形态特征对 AMF 孢子进行鉴定,发现有 5 个真菌属的孢子表型,包括 Glomus、Acaulospora、Gigaspora、Scutellospora 和 Sclerocystis。不过,有 3 种形态类型尚未确定。从结果来看,Glomus 和 Acaulospora 这两个属的频率最高,分别为 43.9% 和 39.6%。
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引用次数: 0
Antagonistic potential of actinomycete strains against Colletotrichum sp. causes anthracnose disease in durian 放线菌菌株对引起榴莲炭疽病的 Colletotrichum sp.
Pub Date : 2024-02-25 DOI: 10.31276/vjst.66(2).75-80
Minh Tuong Le, Hong Nhieu Le, Quoc Viet Le, Quang Dung Nguyen, Van Tap Nguyen
The research was carried out at Can Tho University with the aim of investigating the ability of actinomycetes isolates to antagonise Colletotrichum sp. fungus causing anthracnose disease in durian. The results showed that among the 28 actinomycete strains evaluated, 6 actinomycetes including BT19, BL10, TG19, BT16, ĐT15, and VL9 had stronger antagonism with a radius of inhibition zone reaches 12.4, 9.4, 11.1, 9.8, 9.7, and 9.2 mm, respectively and antagonistic efficacy of 63.22, 58.62, 55.86, 53.56, 52.64, and 53.79%, respectively at 7 days after co-inoculation. The ability to degrade β-glucan of 6 strains BT19, BL10, TG19, BT16, DT15, and VL9 performed under laboratory conditions showed that the BT19 isolate had the highest β-glucanolytic activity with the β-glucan lyse halo radius of 8.53 mm and secreted β-glucanase content reached 0.678 IU/ml at 14 days after testing. The results of this study will be the basis for further research to contribute to finding effective methods to control anthracnose disease in durian.
这项研究是在芹苴大学进行的,目的是调查放线菌分离物拮抗引起榴莲炭疽病的 Colletotrichum sp.结果表明,在所评估的 28 株放线菌中,6 株放线菌(包括 BT19、BL10、TG19、BT16、ĐT15 和 VL9)具有较强的拮抗能力,在共同接种 7 天后,抑制区半径分别达到 12.4、9.4、11.1、9.8、9.7 和 9.2 毫米,拮抗效力分别为 63.22、58.62、55.86、53.56、52.64 和 53.79%。在实验室条件下对 6 株菌株 BT19、BL10、TG19、BT16、DT15 和 VL9 的β-葡聚糖降解能力进行了测定,结果表明 BT19 菌株的β-葡聚糖分解活性最高,β-葡聚糖裂解光晕半径为 8.53 mm,试验 14 天后分泌的β-葡聚糖酶含量达到 0.678 IU/ml。本研究的结果将为进一步的研究奠定基础,有助于找到有效的方法来控制榴莲炭疽病。
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引用次数: 0
Building a model to evaluate hypertensive crisis in mice 建立评估小鼠高血压危象的模型
Pub Date : 2024-02-25 DOI: 10.31276/vjst.66(2).20-25
Xuan Phuc Nguyen, Van Vien Doan, Manh Hung Tran
High blood pressure is a major cause of stroke and cardiovascular complications. The development of a hypertensive crisis model allows rapid testing of the effects of antihypertensive drugs, meeting the need for research and development of chronic pharmacological models. A model of acute hypertension was induced by intraperitoneal injections of xylometazoline at different doses and subcutaneous injections of atropine at a dose of 0.4 mg/kg. This study applied the CODA high-throughput hypertensive machine to determine a suitable model. The results of injecting xylometazoline at a dose of 1 mg/kg ( IP) and atropine (0.4 mg/kg) (SC) showed induced hypertension with systolic >130 mmHg constantly with 15 circles in 20 minutes. The hypotensive effect was found when oral administration of nifedipine (6 mg/kg), losartan (100 mg/kg), and captopril (100 mg/kg). However, the hypotensive effect of bisoprolol was not found at a dose of 50 mg/kg. This mouse model can be applied for further screening and evaluating the therapeutic effect of hypotensive drugs.
高血压是导致中风和心血管并发症的主要原因。建立高血压危象模型可以快速检测降压药物的效果,满足研究和开发慢性药理模型的需要。通过腹腔注射不同剂量的木甲唑啉和皮下注射 0.4 mg/kg 剂量的阿托品,诱发急性高血压模型。这项研究应用 CODA 高通量高血压机确定了一个合适的模型。结果显示,注射 1 毫克/千克(IP)剂量的西甲唑啉和 0.4 毫克/千克(SC)剂量的阿托品可诱发收缩压大于 130 毫米汞柱的高血压,20 分钟内持续 15 圈。口服硝苯地平(6 毫克/千克)、洛沙坦(100 毫克/千克)和卡托普利(100 毫克/千克)均有降压作用。然而,比索洛尔在 50 毫克/千克的剂量下没有降压作用。该小鼠模型可用于进一步筛选和评估降压药物的治疗效果。
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引用次数: 0
Identification of genetic relationships of Acacia auriculiformis clones using ISSR markers 利用 ISSR 标记鉴定金合欢克隆的遗传关系
Pub Date : 2024-02-25 DOI: 10.31276/vjst.66(2).55-59
Van Doan Duong, Thi Thu Ha Tran, Tri-Thuc Bui, Manh Tuan Nguyen, Tien Dung Nguyen
In this study, seven clones of Acacia auriculiformis,collected in Cam Lo district, Quang Binh province were assessed for genetic diversity using 15 ISSR markers. The results showed that seven Acacia clones had an average level of genetic variation. In which, four ISSR markers including ISSR1, ISSR3, ISSR8, and ISSR15 showed higher polymorphism information content (PIC) value than the others. The results analysis indicated that 30 out of 40 DNA fragments were polymorphic (75%, PIC=0.28-0.33). The ISSR8 exhibited the highest genetic diversity index (0.33), while ISSR15 showed the lowest diversity (0.28). Seven clones of A. auriculiformis were divided into two main groups: group I comprised four clones: Clt7, Clt18, Clt19, and Clt26; group II included the remaining three clones: Clt25, Clt43, and Clt57. Genetic variation was correlated with plant growth ability. This result exhibited that the ISSR marker was an efficient tool in assessing and selecting the good genetic resource of A. auriculiformis for the forestry tree breeding program in Vietnam.
本研究利用 15 个 ISSR 标记评估了在广平省 Cam Lo 县采集的 7 个金合欢克隆的遗传多样性。结果表明,7 个金合欢克隆的遗传变异水平一般。其中,ISSR1、ISSR3、ISSR8 和 ISSR15 等四个 ISSR 标记的多态性信息含量(PIC)值高于其他标记。结果分析表明,40 个 DNA 片段中有 30 个具有多态性(75%,PIC=0.28-0.33)。其中 ISSR8 的遗传多样性指数最高(0.33),而 ISSR15 的多样性指数最低(0.28)。A. auriculiformis 的 7 个克隆被分为两大组:第一组由 4 个克隆组成:第 I 组包括四个克隆:Clt7、Clt18、Clt19 和 Clt26;第 II 组包括其余三个克隆:第二组包括其余三个克隆:Clt25、Clt43 和 Clt57。遗传变异与植物生长能力相关。这一结果表明,ISSR 标记是评估和筛选 A. auriculiformis 优良遗传资源的有效工具,可用于越南的林木育种计划。
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引用次数: 0
Expression and purification of truncated recombinant human angiotensin converting enzyme 2 (trhACE2) capable of binding spike protein of SARS-CoV-2 表达和纯化能与 SARS-CoV-2 的尖峰蛋白结合的截短重组人血管紧张素转换酶 2 (trhACE2)
Pub Date : 2024-02-25 DOI: 10.31276/vjst.66(2).08-13
Thi Le Thuy Nguyen, Minh Tuan Nguyen, Thi Kim Tram Pham, Dang Quan Nguyen
SARS-CoV-2 infects the host through the interaction be-tween spike protein and the ACE2 (Angiotensin convert-ing enzyme 2) receptor on the host cell surface. There-fore, ACE2 is considered as a key target in drug devel-opment against COVID-19. In this study, we generated the truncated recombinant human ACE2 (trhACE2) expressed on Escherichia coli and evaluated its binding activity to spike protein of SARS-CoV-2. The sequence of ACE2 (18-119 aa) was cloned into pET28a(+) plasmid and transformed into E. coli DH5α strain and finally was transferred to E. coli BL21 (DE3) cells for protein expression. Protein trhACE2 was purified by affinity chromatography using a HisTrap HP column. Protein purity was above 95% and production yield was 75 mg/l. The purified protein was refolded by dialysis method. trhACE2 was evaluated for its ability to bind the spike protein by sandwich ELISA assay and surface plasmon resonance (SPR). The results showed that trhACE2 has the ability to bind spike protein of SARS-CoV-2 with the equilibrium dissociation constant Kd=15.7 nM. With a relatively simple and inexpensive expression and purifi-cation process on E. coli system, there is the potential to develop trhACE2 for preventive and supportive thera-pies against COVID-19.
SARS-CoV-2 通过尖峰蛋白与宿主细胞表面的 ACE2(血管紧张素转换酶 2)受体之间的相互作用感染宿主。因此,ACE2 被认为是开发抗 COVID-19 药物的关键靶点。在这项研究中,我们在大肠杆菌上表达了截短的重组人 ACE2(trhACE2),并评估了它与 SARS-CoV-2 穗蛋白的结合活性。ACE2的序列(18-119 aa)被克隆到pET28a(+)质粒中,并转化到大肠杆菌DH5α菌株中,最后转入大肠杆菌BL21(DE3)细胞中进行蛋白表达。使用 HisTrap HP 色谱柱通过亲和层析纯化了 trhACE2 蛋白。蛋白质纯度超过 95%,产量为 75 mg/l。通过夹心酶联免疫吸附试验和表面等离子体共振(SPR)评估了 trhACE2 与尖峰蛋白的结合能力。结果表明,trhACE2能与SARS-CoV-2的尖峰蛋白结合,其平衡解离常数Kd=15.7 nM。通过在大肠杆菌系统中相对简单和廉价的表达和纯化过程,trhACE2有可能被开发用于对COVID-19的预防和支持治疗。
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引用次数: 0
Application of collagen membrane from amniotic membrane as a substrate for adherent cell culturing in tissue engineering 将羊膜胶原蛋白膜作为粘附细胞培养基质在组织工程中的应用
Pub Date : 2024-02-25 DOI: 10.31276/vjst.66(2).26-31
Thanh Binh Nguyen, Thi Thu Hien Nguyen, Phuong Thanh Duong, Thi Thanh Thuy Tran, Ngoc Hien Nhan, Khanh Hoa Nguyen, KC Huong Hoang, Tuan Kiet Nguyen, Minh Can Nguyen, T. Q. Ngo, Duy Thao Huynh
The human amniotic membrane has been widely used in clinical practice to treat all kinds of lesions related to the epithelial surface, corneal epithelial reconstruction, and orthopaedic trauma. Currently, another application aspect of the amniotic membrane of great interest is its use as an in vitro adherent cell culture medium. In this study, the human amniotic membranes were collected under sterile conditions in the operating room and tested negative for HIV, HBV, HCV, and VDRL. The amniotic membranes were then processed to remove the epithelial layer, to obtain a collagen membrane that can be used as a substrate for cell culture adhesion. Following that, the collagen membrane was structurally evaluated by Hematoxylin and eosin (H&E) staining, SEM. Next, we tested the use of collagen membranes as a culture medium for human fibroblasts and evaluated cell adhesion, growth, and development by histological images over time of cell culture. The image results obtained before and after processing showed that the collagen membrane has an acellular structure, maintaining the basement membrane’s structure. Cell culture results exhibited that fibroblasts adhered and developed well on this collagen membrane.
人羊膜已广泛应用于临床,治疗各种上皮表面病变、角膜上皮重建和骨科创伤。目前,羊膜的另一个应用方面也备受关注,那就是用作体外粘附细胞培养基。在这项研究中,人羊膜是在手术室无菌条件下采集的,经检测,HIV、HBV、HCV 和 VDRL 均为阴性。然后对羊膜进行处理,去除上皮层,得到可用作细胞培养粘附基质的胶原膜。然后,用苏木精和伊红(H&E)染色法和扫描电镜对胶原膜的结构进行评估。接下来,我们测试了胶原蛋白膜作为人成纤维细胞培养基的使用情况,并通过细胞培养过程中的组织学图像评估了细胞的粘附、生长和发育情况。处理前后的图像结果显示,胶原蛋白膜具有无细胞结构,保持了基底膜的结构。细胞培养结果表明,成纤维细胞在这种胶原膜上附着和发育良好。
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引用次数: 0
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Ministry of Science and Technology, Vietnam
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