Recent patents on biotechnology最新文献

{"title":"Pharmacological Approaches and Innovative Strategies for Individualized Patient Care.","authors":"Amnesh Kumar Verma, Kuldeep Singh, Jeetendra Kumar Gupta, Shivendra Kumar, Divya Jain","doi":"10.2174/0118722083359334250116063638","DOIUrl":"https://doi.org/10.2174/0118722083359334250116063638","url":null,"abstract":"<p><p>Personalized medicine is an evolving paradigm that aims to tailor therapeutic interventions to individual patient characteristics. With a growing understanding of the genetic, epigenetic, and molecular mechanisms underlying diseases, tailored therapies are becoming more feasible and effective. This review highlights the significant advancements in personalized medicine, focusing specifically on pharmacological strategies. The article explores the integration of genomics, transcriptomics, proteomics, and metabolomics in drug development and therapy optimization. Pharmacogenomics, the customization of drug therapy based on an individual's genetic makeup, receives particular emphasis. This leads to the identification of specific biomarkers that can predict therapeutic response, drug toxicity, and susceptibility to various diseases. Together with computational tools and artificial intelligence, these advancements contribute to tailored treatment plans for patients with conditions such as cancer, cardiovascular diseases, and neurological disorders. We also highlight the challenges and ethical considerations in implementing personalized medicine, such as data privacy, cost-effectiveness, and accessibility. We outline future prospects and ongoing research in this field, highlighting the importance of collaborative efforts between researchers, clinicians, pharmacists, and regulatory authorities.</p>","PeriodicalId":21064,"journal":{"name":"Recent patents on biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143010790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the Therapeutic Potential of TROP2 Gene Silencing in Hepatocellular Carcinoma.","authors":"Fatma Yakoub, Hanem Hassan, Samah Mamdouh, Tarek Aboushousha, Fatma B Rashidi, Mohamed A El-Desouky","doi":"10.2174/0118722083352578241225130252","DOIUrl":"https://doi.org/10.2174/0118722083352578241225130252","url":null,"abstract":"<p><strong>Background: </strong>Trophoblast Cell Surface Antigen 2 (Trop2) is a transmembrane glycoprotein that has been implicated in the progression and metastasis of various cancers, including hepatocellular carcinoma (HCC). Targeting Trop2 expression may represent a promising approach for the development of novel therapeutic strategies.</p><p><strong>Objectives: </strong>This study aimed to investigate the effects of Trop2 knockdown using small interfering RNA (siRNA) on the phenotypic and molecular characteristics of the HepG2 liver cancer cell line.</p><p><strong>Methods: </strong>HepG2 cells were transfected with different concentrations of Trop2-targeting siRNA (3 nM, 5 nM, and 7 nM) at various time intervals (6, 24, and 48 hrs). The expression of Trop2 was assessed by real-time PCR before and after transfection. The impact of Trop2 knockdown on cell apoptosis, migration, morphology, histopathological features, wound-healing assays, and microscopic analysis was examined. Additionally, the expression of the TPM1 gene was evaluated using immunohistochemical analysis.</p><p><strong>Results: </strong>Trop2 mRNA level was significantly decreased in HepG2 cells in a time- and concentration-dependent manner following siRNA transfection. The downregulation of Trop2 resulted in a marked increase in apoptosis, a reduction in cell migration, and alterations in cell morphology and histopathological characteristics. Furthermore, the expression of the TPM1 gene was found to be upregulated in Trop2-knockdown HepG2 cells.</p><p><strong>Conclusion: </strong>These results highlight the potential of Trop2 as a therapeutic target for the management of hepatocellular carcinoma.</p>","PeriodicalId":21064,"journal":{"name":"Recent patents on biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143010785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Medicinal Plants in the Treatment of Respiratory Diseases and their Future Aspects.","authors":"Aliya Firdaus, Mohd Hadi Yunus, Syed Khalida Izhar, Uzma Afaq","doi":"10.2174/0118722083278561231212072408","DOIUrl":"10.2174/0118722083278561231212072408","url":null,"abstract":"<p><p>The utilization of medicinal plants in the treatment of respiratory diseases has a rich history dating back centuries. A vast body of research literature, including review articles, research papers, case studies, patents, and books, provides substantial evidence supporting the use of medicinal plants in the treatment of diseases and injuries. This study delves into the diverse range of plant species known for their therapeutic properties, with a specific focus on their applications in respiratory health. Medicinal plants have played a crucial role as a source of ingredients for medications and the synthesis of drugs. Globally, over 35,000 plant species are employed for medicinal purposes, particularly in emerging countries where traditional medicine, predominantly plant-based pharmaceuticals, serves as a primary healthcare resource. This review highlights the significance of medicinal plants, such as aloe, ginger, turmeric, tulsi, and neem, in treating a wide array of common respiratory ailments. These plants contain bioactive compounds, including tannins, alkaloids, sugars, terpenoids, steroids, and flavonoids, which have diverse therapeutic applications. Some medicinal plants, notably <i>Echinacea purpurea</i> and <i>Zingiber officinale</i>, exhibit potential for adjuvant symptomatic therapy in respiratory conditions, such as chronic obstructive pulmonary disease (COPD), bronchitis, asthma, the common cold, cough, and whooping cough. The leaves of medicinal plants like <i>Acacia torta, Ocimum sanctum, Mentha haplocalyx, Lactuca virosa, Convolvulus pluricaulis,</i> and <i>Acalypha indica</i> are commonly used to address pneumonia, bronchitis, asthma, colds, and cough. This review aims to shed light on specific medicinal plants with therapeutic value, providing valuable insights for researchers in the field of herbal medicine. These plants hold the potential to serve as novel therapeutic agents in the treatment of respiratory diseases.</p>","PeriodicalId":21064,"journal":{"name":"Recent patents on biotechnology","volume":" ","pages":"2-18"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139562963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carvacrol: Innovative Synthesis Pathways and Overview of its Patented Applications.","authors":"Reda El Boukhari, Ahmed Fatimi","doi":"10.2174/0118722083292888240223094707","DOIUrl":"https://doi.org/10.2174/0118722083292888240223094707","url":null,"abstract":"<p><strong>Aim: </strong>This research concerns the patentability of carvacrol; it could be helpful for researchers to easily identify any innovation in the biotechnological application of this monoterpene as well as other similar compounds.</p><p><strong>Background: </strong>Like thyme or oregano, several plants in the Lamiaceae family produce carvacrol. It is one of the secondary metabolites with several biological activities, including the improvement in plants' resistance and their protection. Carvacrol has many chemical properties, such as antioxidant and anti-microbial, which have made it interesting for multiple biotechnological applications in the fields of food, feed, pharmacology, and cosmetology.</p><p><strong>Objective: </strong>We have made an attempt to demonstrate the value of carvacrol, first by studying quantitative data from patent documents, and then, through some relevant patents, we have tried to highlight the various fields of innovation related to the properties of carvacrol.</p><p><strong>Methods: </strong>For the study, we have collected and sorted patent documents (i.e., patent applications and granted patents) from specialized patent databases, using \"carvacrol\" and some of its synonyms as keywords. The selected documents have included these keywords in their titles, abstracts, or claims. Then, thanks to patent analysis, we have tried to provide an overview of the useful properties of organic compounds.</p><p><strong>Results: </strong>We have shown that about 90% of the patent documents studied have been published in the 2000s. The number of publications, which is constantly increasing, demonstrates the growing interest in carvacrol. Although the applications of carvacrol are varied, the data on the IPC classification show that most published innovations are concerned with formulations in the fields of health, food, and feed. The study of the most relevant patents has allowed us to highlight some developments in the extraction and synthesis of carvacrol and some examples of patents that illustrate the wide possibilities offered by the exploitation of carvacrol. Thus, we have discussed its use in the cosmetic, pharmaceutical, food, and agricultural fields.</p><p><strong>Conclusion: </strong>Carvacrol is a natural compound with beneficial properties. Several applications using this monoterpene have already been patented in different fields. However, the evolution of patentability has grown this past year and revealed the potential of carvacrol in biotechnology.</p>","PeriodicalId":21064,"journal":{"name":"Recent patents on biotechnology","volume":"19 1","pages":"53-68"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143010794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploration of Polyhydroxybutyrate (PHB) Production Potential of Photosynthetic Microbes: A Sustainable Source of Bioplastic.","authors":"Saima Shahzad Mirza, Kanza Yaseen, Sumaira Aslam, Ammara Fatima, Mohammad Hossein Morowvat, Ayesha Ishaque, Kalsoom Fatima","doi":"10.2174/0118722083295143241220054012","DOIUrl":"https://doi.org/10.2174/0118722083295143241220054012","url":null,"abstract":"<p><strong>Introduction: </strong>The present study examined Polyhydroxy butyrate production (PHB) potential of different photosynthetic microbes such as Chlorella vulgaris, Scenedesmus obliquus and Rhodobacter capsulatus-PK under different nutrient conditions. Biodegradable bioplastics, such as Poly-β-hydroxybutyrates (PHB), derived from these microbes provide a sustainable alternative to conventional petroleum-based nondegradable plastics.</p><p><strong>Background: </strong>As the demand for clean and sustainable alternatives rises, bio-plastic is gaining attention as a viable substitute to conventional plastics. However, conventional sources of bio-plastic production have inherent limitations, which can be effectively addressed through the utilization of photosynthetic microbes e.g. microalgae, purple non sulphur bacteria.</p><p><strong>Methodology: </strong>The production of bioplastic was evaluated by cultivating the microalgae in BG-11, BBM and PNSB in synthetic growth media (MI, MII) with different nitrogen concentrations of 0%, 50% and 100%. The biopolymer (PHB) was obtained from all experiments in a wide range of concentration (7-42.8%) of dry cell weight (DCW).</p><p><strong>Results: </strong>In this study, algal isolate SK1 demonstrated the highest PHB content (42.8%) in BBM under 100% nitrogen starvations rendering the bioplastic exceptionally compatible and suitable for eco-friendly applications. Additionally, various patents cited by different authors on different aspects of microbial bioplastic production.</p><p><strong>Conclusion: </strong>Nutrition depletion such as nitrogen scarcity induced stressful growth conditions that resulted in highest accumulation of the biopolymer PHB. Optimizing nitrogen availability is key to maximizing PHB production, making it a viable sustainable alternative to conventional plastics.</p>","PeriodicalId":21064,"journal":{"name":"Recent patents on biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142984543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Green-Synthesized Nanoparticles on Dental Caries-Causing Bacteria: A Systematic Review.","authors":"Asma Sepahdar, Behnoush Selahbarzin, Atoosa Vaez Naini, Samira Jafari, Mehrnaz Moradi, Pegah Shakib","doi":"10.2174/0118722083343723241204053839","DOIUrl":"https://doi.org/10.2174/0118722083343723241204053839","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Introduction: &lt;/strong&gt;In this study, a comprehensive search was conducted across multiple databases, including PubMed, Google Scholar, SID, Scopus, Medline, and Web of Science, as well as selected herbal medicine journals. The inclusion of herbal medicine journals was justified by the growing interest in green-synthesized nanoparticles derived from plant extracts, which are relevant to the focus of this review. Articles published between 2015 and 2023 were evaluated. To ensure a robust selection process, studies were assessed for quality using specific criteria beyond the AXIS checklist, including study design, sample size, and methodological rigor. Any discrepancies between reviewers were resolved through discussion or consultation with a third reviewer. This approach aimed to minimize bias and ensure the inclusion of high-quality studies that contribute meaningfully to the review's objectives.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Objective: &lt;/strong&gt;The primary objective of this review was to investigate the therapeutic implications of green-synthesized metallic nanoparticles, such as silver and zinc nanoparticles, in addressing dental caries, with a focus on their antibacterial properties and potential to improve current treatment modalities.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Materials and methods: &lt;/strong&gt;In this study, PubMed, Google Scholar, SID, Scopus, Medline, Web of Science, and herbal medicine journals were searched, and articles from 2015 to 2023 were evaluated.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;In this study, 22 clinical trials were reviewed, and the effectiveness of synthesized nanoparticles was demonstrated in nearly all of them. The nanoparticles found to be most effective against tooth decay-causing bacteria include silver, zinc, selenium, nickel, and copper nanoparticles. To provide greater clarity, key findings, such as nanoparticle size, minimum inhibitory concentration (MIC) values, and specific antibacterial effects, are presented in a table. Additionally, a more in-depth comparison was made between these nanoparticles, focusing on their relative effectiveness under different conditions. For example, silver nanoparticles were consistently effective across various trials due to their strong antimicrobial properties, while zinc and copper nanoparticles showed efficacy in specific concentrations and against particular bacterial strains. Furthermore, green-synthesized nanoparticles were compared with those produced using traditional methods, evaluating factors, such as effectiveness, scalability, and safety, to provide a comprehensive understanding of their potential in dental caries treatment.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion: &lt;/strong&gt;According to the literature review, nanoparticles with antibacterial properties have the potential to serve as an alternative or complement to conventional chemical treatments for combating tooth decay. Future research should focus on exploring specific types of nanoparticles, such as green-synthesized metallic nanoparticles (e.g., sil","PeriodicalId":21064,"journal":{"name":"Recent patents on biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142855244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biosurfactants Used in the Bioremediation of Soils Contaminated With Hydrocarbons - Overview of the State of the Art and Future Perspectives.","authors":"Maria Auxiliadora de Oliveira, Vinícius Souza Tarabal, Felipe Ferreira Silva, Diego Fernandes Livio, Daniela Regiane da Silva, Adriano Guimarães Parreira, Daniel Bonoto Gonçalves, José Antônio da Silva, Pedro Pires Goulart Guimarães, Paulo Afonso Granjeiro","doi":"10.2174/0118722083343490241130163344","DOIUrl":"https://doi.org/10.2174/0118722083343490241130163344","url":null,"abstract":"<p><strong>Background: </strong>The increasing industrialization and hydrocarbon use have led to concerning soil contamination. Oil spills and improper disposal of oily waste pose threats to ecosystems and human health. The recovery of these environments is essential, but separating oily components from soil remains challenging. Current bioremediation strategies using synthetic surfactants can cause secondary contamination. Microbial biosurfactants, which are biodegradable and low in toxicity, emerge as promising solutions, and this study reviews methods for utilizing these biosurfactants in the environmental bioremediation of hydrocarbons.</p><p><strong>Objective: </strong>This study explores the efficient and eco-friendly use of biosurfactants for hydrocarbon- contaminated soil management, providing a market-oriented analysis of recent patents and trends, and highlighting the transition from academic research to industrial applications.</p><p><strong>Method: </strong>The methodology involves an extensive literature review, careful selection of recent studies and patents on biosurfactants in hydrocarbon bioremediation, critical analysis of in-situ and ex-situ application methods, assessment of commercial viability, and synthesis of findings to contribute to sustainable solutions in contaminated environments.</p><p><strong>Conclusion: </strong>The present study demonstrates the extensive applicability of biosurfactants across various industrial sectors. The increasing interest in incorporating biosurfactants into industrial processes is driven by the pressing need for sustainable solutions to address tangible market challenges. Notably, the cosmetics industry exhibited the highest number of patents related to the use of biosurfactants, underscoring its significant role in advancing the adoption of these environmentally friendly agents. This trend highlights the critical demand for sustainable alternatives in product formulations and underscores the pivotal role of biosurfactants in fostering eco-innovation within the industry.</p>","PeriodicalId":21064,"journal":{"name":"Recent patents on biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142855193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antifungal Activity of Alcoholic Extract of Allium Jesdianum on Fungi-Contaminated Dairy Products.","authors":"Fatemeh Fallahi, Shirin Naghdifar, Zahra Sadri Irani, Seyed Mohammad Mahdi Kazemi, Pegah Shakib, Mahboobeh Madani","doi":"10.2174/0118722083332626241129061731","DOIUrl":"https://doi.org/10.2174/0118722083332626241129061731","url":null,"abstract":"<p><strong>Background: </strong>One of the main sources of contaminated dairy products is moldy fungi, specifically species of Aspergillus and Penicillium. This study aimed to evaluate the effect of the alcoholic extract of Allium jesdianum plant on the growth of molds contaminating dairy products in Isfahan.</p><p><strong>Materials and methods: </strong>In this research, 200 samples of dairy products were gathered from different areas of Isfahan city, including 70 samples of cheese, 60 samples of buttermilk, 40 samples of yogurt, 20 samples of curd, and 10 samples of cream. The antifungal activity of Allium jesdianum plant was investigated by the diffusion method in disc, well, and agar dilution in various concentrations. Minimum inhibitory concentration (MIC) and minimum fatal concentration (MFC) were also determined. Aspergillus, Penicillium, Cladosporium, and Acremonium fungi were the most commonly found fungal contaminants of this investigation. Antifungal activity was not observed by disc diffusion and well diffusion methods.</p><p><strong>Results: </strong>In the agar dilution method, ethanolic and methanolic extracts of stem and leaves in concentrations of 80, 60, 40, and 30 mg/ml, and ethanolic and methanolic extracts of plant bulbs in concentrations of 60 and 30 mg/ml revealed antifungal activity against Aspergillus niger, Penicillium notatum, and Penicillium chrysogenum. The MIC of stem and leaf ethanol extracts and onion ethanol for Aspergillus niger was 18.7, and for Penicillium notatum and Penicillium chrysogenum, it was 37.5, 37.5, 37.5, and 37.5 mg/ml. Fungal contamination of dairy products is a serious threat to the public health of society. Therefore, identifying medicinal plants with antifungal activity can be an effective step in preventing fungal contamination and increasing the shelf life of these products.</p><p><strong>Conclusion: </strong>The results of this research have shown that the Allium jesdianum plant can inhibit the growth of Aspergillus niger, Penicillium notatum, and Penicillium chrysogenum.</p>","PeriodicalId":21064,"journal":{"name":"Recent patents on biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142855233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antimicrobial Effect of Formononetin Against the Periodental Pathogens Enterococcus faecalis and Candida albicans.","authors":"Negar Delfan, Maryam Dalaei Moghadam, Pegah Shakib, Asma Sepahdar, Zahra Naghibeiranvand","doi":"10.2174/0118722083342082241129060918","DOIUrl":"https://doi.org/10.2174/0118722083342082241129060918","url":null,"abstract":"<p><strong>Background: </strong>Among the bioactive isoflavones identified from different plants is formononetin. Formononetin's antioxidant, anti-inflammatory, and anti-cancer qualities have all received a lot of attention lately. The goal of the current investigation was to examine formononetin's antifungal and antibacterial activity against Candida albicans and Enterococcus faecalis in vitro, respectively.</p><p><strong>Methods: </strong>The present study determined the Minimum Inhibitory Concentration (MIC), Minimum Bactericidal Concentration (MBC), and Minimum Fungicidal Concentration (MFC) of formononetin, chlorhexidine, formononetin + chlorhexidine, Formononetin+ nystatin, and nystatin against E. faecalis and C. albicans isolates. Next, SPSS version 25 was used to analyze the data. A significance cutoff of P<0.05 was taken into account.</p><p><strong>Results: </strong>Chlorhexidine + formononetin and formononetin alone had the greatest and lowest minimum inhibitory concentrations (MIC) against E. faecalis, at 6.6 and 18.3 μg/ml, respectively. With MIC values of 0.66 and 8.3 μg/ml against a C. albicans isolate sensitive to nystatin, the combination of formononetin + nystatin and formononetin alone was shown to have the greatest and lowest anti-candida effects.</p><p><strong>Conclusion: </strong>The findings demonstrated a considerably greater antibacterial effect (P<0.05) for the combinations of formononetin + nystatin and chlorhexidine as compared to nystatin and chlorhexidine alone.</p>","PeriodicalId":21064,"journal":{"name":"Recent patents on biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142855238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of the Characteristics of Circulating Small Extracellular Vesicles Isolated by Ultracentrifugation and a Commercial Kit.","authors":"Reza Afrisham, Vida Farrokhi, Roya Moradi, Shaban Alizadeh","doi":"10.2174/0118722083325164241015103217","DOIUrl":"https://doi.org/10.2174/0118722083325164241015103217","url":null,"abstract":"<p><strong>Introduction: </strong>The market offers a wide range of extracellular vesicles (EVs) isolation products, but their lack of standardization is a concern. Therefore, it is important to carefully assess the quality of the EVs obtained using these products. In this study, we compared the EXOCIB kit with the ultracentrifuge method, which is considered the gold standard for small EV isolation.</p><p><strong>Methods: </strong>After overnight fasting, small plasma EVs were extracted from four individuals using both the ultracentrifuge and the EXOCIB kit methods. The pooled EVs were then compared for the presence of the cluster of differentiation 63 (CD63) protein using the western blot analysis, and their size and zeta potential were performed by Dynamic Light Scattering (DLS). In addition, the size and morphology of small EVs were determined by using the Transmission Electron Microscopy (TEM) technique.</p><p><strong>Results: </strong>An average hydrodynamic size of 135.7 nm and a zeta potential of -6.33 Mv at 25°C was found for small EVs isolated by the ultracentrifuge, whereas the kit method resulted in small EVs with a hydrodynamic size of 102.8 nm and a zeta potential of -0.907. Notably, the size of the particles in the kit samples was smaller compared to those obtained through the ultracentrifuge (P < 0.001). The western blot method confirmed the expression of CD63 in both methods, so the ultracentrifuge yielded small EVs with a higher level of purity compared to the kit-based approach (P = 0.036).</p><p><strong>Conclusion: </strong>The DLS findings revealed the existence of vesicles within the appropriate size range for small EVs like exosomes in both isolation techniques. The results of the western blot analysis, in conjunction with DLS, displayed that the ultracentrifuge method extracted small EVs with a greater degree of purity than the kit-based approach.</p>","PeriodicalId":21064,"journal":{"name":"Recent patents on biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142547121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}