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Formulation and Complex Morphological Characterization of Core-Shell Fibrous Mats for Chronic Wound Healing 用于慢性伤口愈合的核-壳纤维垫的配方和复杂形态表征
Pub Date : 2021-11-15 DOI: 10.33892/aph.2021.91.247-248
Adrienn Kazsoki, A. Farkas, Diána Balogh‐Weiser, E. Mancuso, P. Sharma, D. Lamprou, R. Zelkó
In the recent past, one of the major challenges of the pharmaceutical industry was to overcome the poor aqueous solubility and permeability of new drug candidates, leading to their low bioavailability [1]. To solve these problems, novel structures were developed involving the polymer-based nanofibrous drug delivery systems [2,3]. The unique properties of the nanofibers as the high porosity with interconnected pore network and the increased surface area of the fibrous sheets, together with the active pharmaceutical ingredients can be embedded into the polymeric matrix carrier in an amorphous state, could lead to an increased dissolution and thus the bioavailability of drugs with a lower solubility [4,5]. Due to their structure, the formulation of nanofibrous materials loaded with different drugs have been widely used as drug delivery systems, scaffolds for tissue engineering and wound bandage. Electrospinning is a well controllable, simple and cost-effective technique for preparing matrices with nanometer-sized fibers with similar features and morphologies to the extracellular matrix (ECM) [6]. The ECM is the non-cellular component presents within all tissues and organs and plays a vital role in the wound healing process [7]. Therefore from those materials which can mimic their structure are believed to stimulate cell proliferation and could help the wound healing [6]. The diverse field of application of the nanofibrous materials required adequate functionalityrelated characteristics. One of the emerging improvements is the development of a bi-component core-shell fiber structure [8], which can offer several benefits for these samples: the core polymer/ composite can provide the required mechanical, physicochemical properties, and can control the release of the incorporated drug(s). The shell materials could preserve the unstable active pharmaceutical ingredients embedded into the core from the unfavorable environmental effect, which can increase the hydrophilicity and the biocompatibility of the fibrous samples. Besides that, one of the significant advantages of this core-shell nanostructures lies in the potential to tailor release properties of the incorporated drug and combine features of different polymers to achieve the required functionality-related characteristic and mechanical properties also [5].
近年来,制药行业面临的主要挑战之一是克服新候选药物的水溶性和渗透性差,导致其生物利用度低[1]。为了解决这些问题,聚合物基纳米纤维给药系统的新结构被开发出来[2,3]。纳米纤维的独特特性是具有相互连接的孔网络的高孔隙率和纤维片表面积的增加,以及活性药物成分可以以无定形嵌入聚合物基质载体中,从而增加溶解性,从而提高溶解度较低的药物的生物利用度[4,5]。纳米纤维材料由于其独特的结构特点,在药物递送系统、组织工程支架和创面绷带等方面得到了广泛的应用。静电纺丝是一种可控、简单、经济的技术,用于制备具有与细胞外基质(ECM)相似特征和形态的纳米级纤维基质[6]。外基质是存在于所有组织和器官中的非细胞成分,在伤口愈合过程中起着至关重要的作用[7]。因此,那些可以模仿其结构的材料被认为可以刺激细胞增殖并有助于伤口愈合[6]。纳米纤维材料的不同应用领域需要充分的功能相关特性。新出现的改进之一是双组分核-壳纤维结构的发展[8],它可以为这些样品提供几个好处:核心聚合物/复合材料可以提供所需的机械、物理化学性能,并且可以控制掺入药物的释放。壳材料可以保护嵌入芯内的不稳定活性药物成分不受不利环境影响,从而提高纤维样品的亲水性和生物相容性。除此之外,这种核壳纳米结构的一个显著优势在于,它有可能调整掺入药物的释放特性,并结合不同聚合物的特征,以实现所需的功能相关特性和力学性能[5]。
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引用次数: 0
Biogenic Iron, Silver and Gold Nanoparticles Against Opportunistic Pathogenic Yeasts and Dermatophytes 生物源铁、银和金纳米颗粒对条件致病性酵母和皮肤真菌的抑制作用
Pub Date : 2021-11-15 DOI: 10.33892/aph.2021.91.310-311
Andrea Rónavári, N. Igaz, M. K. Gopisetty, Bettina Szerencsés, Dávid Kovács, C. Vágvölgyi, Z. Kónya, M. Kiricsi, I. Pfeiffer
Epidemiologic observations indicate that the number of systemic fungal infections has increased significantly during the past decades, however in human mycosis, mainly cutaneous infections predominate, generating major public health concerns and providing much of the impetus for current attempts to develop novel and efficient agents against cutaneous mycosis causing species1. Innovative, environmentally benign and economic nanotechnology-based approaches have recently emerged utilizing principally biological sources to produce nanosized structures with unique antimicrobial properties2. Due to the obvious advantages, the green synthesis of nanoparticles is a rapidly progressing area of the nanobiotechnology. In line with this, the aim of this present study was to investigate the suitability of various green materials such as Parthenocissus quinquefolia plant extract and Phaffia rhodozyma cell-free extract for the preparation of iron nanoparticles (FeNPs), silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) by biological synthesis and to determine the toxicity of nanoparticles to human keratinocyte cells as well as against various fungal species with a special emphasis on antifungal efficiency against dermatophytes.
流行病学观察表明,在过去的几十年里,全身真菌感染的数量显著增加,然而在人类真菌病中,主要是皮肤感染占主导地位,引起了重大的公共卫生问题,并为目前开发新的有效药物对抗皮肤真菌病引起的物种提供了很大的动力。最近出现了基于创新、环保和经济的纳米技术的方法,主要利用生物来源来生产具有独特抗菌性能的纳米结构2。纳米颗粒的绿色合成由于其明显的优点,是纳米生物技术发展的一个迅速的领域。基于此,本研究旨在探讨各种绿色材料如西番莲植物提取物和法非罗酵母无细胞提取物在制备铁纳米粒子(FeNPs)中的适用性。通过生物合成银纳米颗粒(AgNPs)和金纳米颗粒(AuNPs),并确定纳米颗粒对人角质细胞的毒性以及对各种真菌的毒性,特别强调对皮肤真菌的抗真菌效率。
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引用次数: 0
Interfacial Properties of Biodegradable Drug Carrier Nanoparticles 可生物降解药物载体纳米颗粒的界面性质
Pub Date : 2021-11-15 DOI: 10.33892/aph.2021.91.218-219
Dániel Fülöp, É. Kiss, Gergő Gyula
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引用次数: 0
Berberine-loaded Nano-Liposomes Generated with Ethanol-Injection and Thin-film Hydration Methods 乙醇注射与薄膜水合法制备小檗碱纳米脂质体
Pub Date : 2021-11-15 DOI: 10.33892/aph.2021.91.293-295
Duong Thi Thuan, A. Isomäki, Urve Paaver, Ivo Laidmäe, A. Tõnisoo, Tran Thi Hai Yen, Karin Kogermann, A. Raal, J. Heinämäki, Pham Thi Minh Hue
The poor solubility in water is very often a problem for active pharmaceutical substances of plant origin. The formulation of such drugs as liposomal preparations enables to improve the bioavailability of these drugs. Berberine (BBR) is a quaternary isoquinoline alkaloid derived from many native plant species (Coptis spp., Berberis spp., Hydrastis canadensis etc.). BBR has been traditionally used for the treatment of different disorders including hyper-cholesterolemia and cardiovascular diseases [1,2]. BBR has a strong antimicrobial activity enabling the use of it as an anti-diarrheal, anti-protozoal, fungal, candida, yeast, and parasitic intestinal active ingredient [3]. In addition, BBR has shown an anti-inflammatory, anti-diabetic, lipid peroxidation, and neuroprotective activity [3,4]. Unfortunaterly, BBR is poorly soluble in water and has a low bioavailability (<10%) due to the induced activity of multidrug efflux transporter Pglycoprotein (P-gp) in the intestine itself [2]. Such limitations associated with a poor oral bioavailability of BBR could be overcome by nanoformulating BBR to liposomes. Pharmaceutical liposomes can be fabricated by ethanol-injection and thin-film hydration methods. The lamellarity, size, shape and ultra-structure of liposomes can be determined by using different advanced techniques, such as cryogenic electron microscopy (Cryo-EM), dynamic light scattering (DLS), size-exclusion chromatography (SEC), and atomic force microscopy (AFM) [5]. Confocal laser scanning microscopy (CLSM) has been also used for such imaging [6]. The aim of our study is to investigate ethanolinjection and film hydration methods for generating BBR-loaded liposomes and to study the structure, size, size distribution and entrapment efficiency of the liposomes. The liposomes are ultimately intended for the oral treatment of hypercholesterolemia.
植物原料药在水中的溶解度差是一个非常常见的问题。这类药物如脂质体制剂的制剂能够提高这些药物的生物利用度。小檗碱(Berberine, BBR)是从许多本土植物(黄连、小檗、加拿大Hydrastis canadensis等)中提取的季际异喹啉类生物碱。BBR传统上被用于治疗不同的疾病,包括高胆固醇血症和心血管疾病[1,2]。BBR具有很强的抗菌活性,可作为抗腹泻、抗原虫、真菌、念珠菌、酵母菌和寄生虫的肠道活性成分[3]。此外,BBR还具有抗炎、抗糖尿病、脂质过氧化和神经保护活性[3,4]。不幸的是,由于多药外排转运体糖蛋白(P-gp)在肠道内的诱导活性,BBR难溶于水,生物利用度低(<10%)[2]。这些与BBR的口服生物利用度差相关的限制可以通过纳米配方BBR脂质体来克服。采用乙醇注射法和薄膜水化法制备药用脂质体。脂质体的层状、大小、形状和超结构可以通过使用不同的先进技术来确定,如低温电子显微镜(cro - em)、动态光散射(DLS)、尺寸排除色谱(SEC)和原子力显微镜(AFM)[5]。共聚焦激光扫描显微镜(CLSM)也被用于此类成像[6]。本研究的目的是研究乙醇注射和膜水化制备载bbr脂质体的方法,并研究脂质体的结构、大小、大小分布和包封效率。脂质体最终用于口服治疗高胆固醇血症。
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引用次数: 0
Structural Analysis of Human Glycoproteins by Tandem Mass Spectrometry 串联质谱法分析人糖蛋白结构
Pub Date : 2021-11-15 DOI: 10.33892/aph.2021.91.163-164
A. Ács, Dániel Szabó, K. Vékey, G. Sármay, L. Drahos, Lilla Turiák
The process of glycosylation is a highly conserved mechanism among species. The enzymatic addition of oligosaccharide chain to the protein significantly changes the physicochemical properties and protein-protein interactions. Therefore glycosylation considered as a CQA (Critical Quality Attribute) for biopharmaceutical products. At this point there is no routinely used, widespread analytical method to determine glycosylation. This may derive from the fact that the term glycosylation summarizes various features. The most often examined feature is the relative abundance of glycoforms. The position of different sugar residues within the oligosaccharide chain has been less frequently analyzed. In this study we have developed a method which, in addition to the commonly investigated features, determines the structural position of the fucose residue. We have examined glycosylation of three proteins: AGP (alpha-1-acid glycoprotein), PSA (Prostate Specific Antigen) and IgG (Immunoglobulin G).
糖基化过程是物种间高度保守的机制。低聚糖链的酶加作用显著地改变了蛋白质的理化性质和蛋白质间的相互作用。因此,糖基化被认为是生物制药产品的关键质量属性。在这一点上,没有常规使用的,广泛的分析方法来确定糖基化。这可能源于糖基化一词概括了各种特征。最常检查的特征是糖型的相对丰度。对低聚糖链中不同糖残基的位置分析较少。在这项研究中,我们开发了一种方法,除了通常调查的特征,确定焦残的结构位置。我们检测了三种蛋白的糖基化:AGP (α -1-酸性糖蛋白)、PSA(前列腺特异性抗原)和IgG(免疫球蛋白G)。
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引用次数: 0
Comparative Dissolution Study of Coated Pellets Containing Microcrystalline Cellulose and Lactose As Core Materials 以微晶纤维素和乳糖为核心材料包被微球的溶解比较研究
Pub Date : 2021-11-15 DOI: 10.33892/aph.2021.91.177-178
Á. Barna, K. Sántha, Nikolett Kállai-Szabó, E. Balogh, Bálint Basa, G. Jakab, I. Antal
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引用次数: 0
Is the Multi-Attribute Method (MAM) the Next Big Thing? A High-Resolution Accurate Mass Multi-Attribute Method for Critical Quality Attribute Monitoring 多属性方法(MAM)是下一个大事件吗?一种高分辨率精确质量多属性关键质量属性监测方法
Pub Date : 2021-11-15 DOI: 10.33892/aph.2021.91.154-155
Orsolya Kóréh, L. Milivojevic
the focus has turned to automation and software development to allow for automated identification and quantitative analysis of each molecular attribute. With automation and software developments, a true benefit of MAM can be realized by building a comprehensive molecular attribute database linked to process conditions which can then be used to increase product and process knowledge throughout the development pipeline. With this increased product and process knowledge, MAM can reduce the amount of time taken to develop a product, reduce the time needed to manufacture and release a product by add-ing efficient process controls, and reduce the time needed to investigate a process issue. MAM can help to solve major manufacturing challenges plaguing the biopharmaceutical industry today as they strive to develop more biotherapeutics on a faster timeline. The multi-attribute for the of monoclonal critical quality describe the optimization and applica-tion of the Multi- Attribute Method as a complete workflow to monitor CQAs of the NISTmAb including glycosylation, deamidation, isomerization, succinimide formation, oxidation,
重点已经转向自动化和软件开发,以允许每个分子属性的自动识别和定量分析。随着自动化和软件的发展,MAM的真正好处可以通过建立一个与工艺条件相关联的综合分子属性数据库来实现,然后可以在整个开发管道中使用该数据库来增加产品和工艺知识。随着产品和工艺知识的增加,MAM可以减少开发产品所需的时间,通过增加有效的过程控制减少制造和发布产品所需的时间,并减少调查过程问题所需的时间。随着生物制药行业努力在更快的时间内开发出更多的生物疗法,MAM可以帮助解决困扰生物制药行业的主要制造挑战。单克隆关键质量的多属性描述了多属性方法的优化和应用,作为一个完整的工作流程来监测NISTmAb的cqa,包括糖基化、脱酰胺化、异构化、琥珀酰亚胺形成、氧化、
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引用次数: 1
Novel E3 Ligase Ligand Libraries for Degradation of Proteins Implicated in Malignant Diseases 新的E3连接酶配体文库用于降解与恶性疾病相关的蛋白质
Pub Date : 2021-11-15 DOI: 10.33892/aph.2021.91.187-188
B. Bertók, G. Dormán, Z. Várkonyi, C. Magyar
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引用次数: 0
Future of the Hungarian Drug Market : Role of the Hungarian Regulatory Authority 匈牙利药品市场的未来:匈牙利监管机构的作用
Pub Date : 2021-11-15 DOI: 10.33892/aph.2021.91.131-132
M. Szentiványi
The National Institute of Pharmacy and Nutrition (NIPN) has a long tradition as the safeguard of patient safety and as an institution that is committed to ensure that Hungarian patients have access to good quality, safe and efficacious medicines. During the last few years responsibilities of the Institute has been broaden and now we are also a key player in the regulation of special food and medical devices. During the past two decades a transition can be seen in the role of medicines agencies. While in the past the role of regulators was mainly acting as a gatekeeper, nowadays we also need to act as enablers. And while ensuring regulatory compliance of new medicines is still a key activity, our role cannot be narrowed down to the review of documents and other authorization tasks. This is due to the enormous development in the field of biotechnology, precision medicine, the revolution in synthetic biology, just to name a few. On one hand regulators need to be prepared for these new scientific challenges, on the other hand we have to be ready to give the necessary regulatory support to those developers that are coming from various fields and have limited knowledge and experience in regulatory issues.
国家药学和营养研究所(NIPN)作为患者安全保障和致力于确保匈牙利患者获得高质量、安全和有效药物的机构有着悠久的传统。在过去的几年里,研究所的职责已经扩大,现在我们也是特殊食品和医疗设备监管的关键参与者。在过去二十年中,可以看到药品机构的作用发生了转变。过去,监管机构的角色主要是看门人,而如今,我们也需要充当推动者。虽然确保新药的法规遵从性仍然是一项关键活动,但我们的作用不能缩小到审查文件和其他授权任务。这是由于生物技术领域的巨大发展,精准医学,合成生物学的革命,仅举几例。一方面,监管机构需要为这些新的科学挑战做好准备,另一方面,我们必须准备好为那些来自不同领域、在监管问题上知识和经验有限的开发商提供必要的监管支持。
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引用次数: 0
Synthesis of Rhamnose-containing Oligosaccharides, and their Interaction with a Horseshoe Crab Plasma Lectin (HPL) 含鼠李糖低聚糖的合成及其与鲎血浆凝集素的相互作用
Pub Date : 2021-11-15 DOI: 10.33892/aph.2021.91.200-201
F. Demeter, M. Herczeg, Dóra Korponai, Erika Mező, A. Borbás
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引用次数: 0
期刊
Acta pharmaceutica Hungarica
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