Pub Date : 2025-01-01Epub Date: 2025-05-07DOI: 10.1016/j.crbiot.2025.100296
Taru Koitto , Deepika Dahiya , Martina Huusela , Merja Penttilä , Emma Master
Expansins and expansin-like proteins are found in plants and microbes, and can disrupt the cellulosic microfibril network of plant cell walls. While plant expansins play a role in cell wall formation, microbial expansin-like proteins reportedly enhance the activity of lignocellulolytic enzymes. Herein, two novel fungal expansin-like proteins, AmaEXLX1 from Allomyces macrogynus and ApuEXLX1 from Aureobasidium pullulans, were recombinantly produced in Pichia pastoris. While both AmaEXLX1 and ApuEXLX1 retain typical expansin structure, they share low sequence identity (22.5 %) and different predicted pI values (5.8 and 8.8, respectively), which was expected to impact their action on cellulosic substrates. Accordingly, adsorption of the proteins on cellulose nanofibrils (CNF) and the impact of the expansin-like proteins on the hydrolysis of CNF by an endoglucanase (Cel7B) was investigated using quartz crystal microbalance with dissipation (QCM-D). AmaEXLX1 showed higher affinity towards cellulose compared to ApuEXLX1, which was correlated to missing key aromatic residues in the polysaccharide binding surface of ApuEXLX1. The pretreatment of a CNF film with AmaEXLX1 and ApuEXLX1 increased the initial rate of Cel7B activity. This study underscores similarities between the impacts that bacterial and fungal expansin-like proteins can have on the enzymatic deconstruction of cellulose, and sequence properties that could impact expansin performance.
{"title":"Phylogenetically distinct fungal expansins show different binding preferences towards cellulosic materials and enhance cellulase activity","authors":"Taru Koitto , Deepika Dahiya , Martina Huusela , Merja Penttilä , Emma Master","doi":"10.1016/j.crbiot.2025.100296","DOIUrl":"10.1016/j.crbiot.2025.100296","url":null,"abstract":"<div><div>Expansins and expansin-like proteins are found in plants and microbes, and can disrupt the cellulosic microfibril network of plant cell walls. While plant expansins play a role in cell wall formation, microbial expansin-like proteins reportedly enhance the activity of lignocellulolytic enzymes. Herein, two novel fungal expansin-like proteins, <em>Ama</em>EXLX1 from <em>Allomyces macrogynus</em> and <em>Apu</em>EXLX1 from <em>Aureobasidium pullulans</em>, were recombinantly produced in <em>Pichia pastoris</em>. While both <em>Ama</em>EXLX1 and <em>Apu</em>EXLX1 retain typical expansin structure, they share low sequence identity (22.5 %) and different predicted pI values (5.8 and 8.8, respectively), which was expected to impact their action on cellulosic substrates. Accordingly, adsorption of the proteins on cellulose nanofibrils (CNF) and the impact of the expansin-like proteins on the hydrolysis of CNF by an endoglucanase (Cel7B) was investigated using quartz crystal microbalance with dissipation (QCM-D). <em>Ama</em>EXLX1 showed higher affinity towards cellulose compared to <em>Apu</em>EXLX1, which was correlated to missing key aromatic residues in the polysaccharide binding surface of <em>Apu</em>EXLX1. The pretreatment of a CNF film with <em>Ama</em>EXLX1 and <em>Apu</em>EXLX1 increased the initial rate of Cel7B activity. This study underscores similarities between the impacts that bacterial and fungal expansin-like proteins can have on the enzymatic deconstruction of cellulose, and sequence properties that could impact expansin performance.</div></div>","PeriodicalId":52676,"journal":{"name":"Current Research in Biotechnology","volume":"9 ","pages":"Article 100296"},"PeriodicalIF":3.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942178","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}
Pub Date : 2025-01-01Epub Date: 2025-04-12DOI: 10.1016/j.crbiot.2025.100283
Boryana Borisova , Hristina Nocheva , Ivan Iliev , Marie Laronze-Cochard , Stéphane Gérard , Stoyko Petrin , Dancho Danalev
{"title":"Corrigendum to “Synthesis and analgesic activity of new analogs of FELL tetrapeptide containing D-Phe in the first position” [Curr. Res. Biotechnol. 8 (2024) 100249]","authors":"Boryana Borisova , Hristina Nocheva , Ivan Iliev , Marie Laronze-Cochard , Stéphane Gérard , Stoyko Petrin , Dancho Danalev","doi":"10.1016/j.crbiot.2025.100283","DOIUrl":"10.1016/j.crbiot.2025.100283","url":null,"abstract":"","PeriodicalId":52676,"journal":{"name":"Current Research in Biotechnology","volume":"9 ","pages":"Article 100283"},"PeriodicalIF":3.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824400","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}
Pub Date : 2025-01-01Epub Date: 2025-09-15DOI: 10.1016/j.crbiot.2025.100333
Gerhard Poelsler, Marcel Asper, Sebastian Lülf, Florian Zirkel
Intravenous infusion of human IgG (IVIG) is of vital importance for patients suffering from primary or secondary immunodeficiency syndromes, but also has been found to be clinically beneficial in other diseases with autoimmunogenic or inflammatory background. Its clinical application and therefore its demand have been continuously rising during the last decades. Besides IgG, other human antibody classes have also entered clinical applications, therefore a novel manufacturing procedure has been conceived which allows simultaneous isolation of two immunoglobulin preparations, Yimmugo™ (an IVIG) and trimodulin (an IgM concentrate). Since the only suitable source for these antibodies is human donor plasma, from which it is isolated using a series of dedicated purification steps, there is a risk of carrying over infectious human pathogens into the final preparations. We describe here validation of the measures taken to provide Yimmugo, an IVIG product, with robust margins of biological safety, free of pathogens of microbial, viral or prion origin. To this end, we spiked manufacturing process intermediates of Yimmugo with diverse pathogens and tested the capacity of the manufacturing steps to clear these from the preparation. We show that four different purification steps of the Yimmugo procedure efficiently confer clearance of viral and prion pathogens, thereby providing a safe product even in the hypothetical case that an infectious agent in the original material were present. Consequently, the novel preparation procedure yields a provably safe product and simultaneously allows production of an additional medicine from the same plasma pool.
{"title":"Validation of adventitious agent safety in Yimmugo®, a novel IVIG preparation for human use","authors":"Gerhard Poelsler, Marcel Asper, Sebastian Lülf, Florian Zirkel","doi":"10.1016/j.crbiot.2025.100333","DOIUrl":"10.1016/j.crbiot.2025.100333","url":null,"abstract":"<div><div>Intravenous infusion of human IgG (IVIG) is of vital importance for patients suffering from primary or secondary immunodeficiency syndromes, but also has been found to be clinically beneficial in other diseases with autoimmunogenic or inflammatory background. Its clinical application and therefore its demand have been continuously rising during the last decades. Besides IgG, other human antibody classes have also entered clinical applications, therefore a novel manufacturing procedure has been conceived which allows simultaneous isolation of two immunoglobulin preparations, Yimmugo™ (an IVIG) and trimodulin (an IgM concentrate). Since the only suitable source for these antibodies is human donor plasma, from which it is isolated using a series of dedicated purification steps, there is a risk of carrying over infectious human pathogens into the final preparations. We describe here validation of the measures taken to provide Yimmugo, an IVIG product, with robust margins of biological safety, free of pathogens of microbial, viral or prion origin. To this end, we spiked manufacturing process intermediates of Yimmugo with diverse pathogens and tested the capacity of the manufacturing steps to clear these from the preparation. We show that four different purification steps of the Yimmugo procedure efficiently confer clearance of viral and prion pathogens, thereby providing a safe product even in the hypothetical case that an infectious agent in the original material were present. Consequently, the novel preparation procedure yields a provably safe product and simultaneously allows production of an additional medicine from the same plasma pool.</div></div>","PeriodicalId":52676,"journal":{"name":"Current Research in Biotechnology","volume":"10 ","pages":"Article 100333"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145094595","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}
Biotechnology offers renewable alternatives for producing food, materials, and numerous functional compounds. While rampant human activities are disrupting planets’ geophysical flows, it is urgent to develop sustainable solutions with novel feedstocks and innovative valorization pathways. With the need to reduce greenhouse gas emissions and enhance circularity, new raw materials termed the next-generation feedstocks (NGFs), such as carbon dioxide, methane, methanol, formic acid, and acetic acid, have emerged as potential feedstocks for bio-based processes. So far, no such review exists that compares the performance of conventional, sugar, lignocellulosic, algae-based feedstocks, and NGFs, which biotechnology could upcycle into a wide range of products. In this review, the economic and environmental performances of the feedstocks are analyzed, and quantifications are presented and standardized based on techno-economic analysis and life cycle assessment models. The main parameters for comparison included the geographical location, unit production cost, and environmental impact categories. The results show that the economic and environmental performances are highly variable among the different feedstocks and their processing routes, also depicting evident tradeoffs. Carbon dioxide, sugar cane molasses and glycerol from waste streams are performing better on assessed indicators overall than other potential feedstocks. Nonetheless, this designed data source is the first step for reliable feedstock selection based on sustainability criteria.
{"title":"Ranking economic and environmental performance of feedstocks used in bio-based production systems","authors":"Dania Muhieddine Orfali , Samir Meramo , Sumesh Sukumara","doi":"10.1016/j.crbiot.2025.100275","DOIUrl":"10.1016/j.crbiot.2025.100275","url":null,"abstract":"<div><div>Biotechnology offers renewable alternatives for producing food, materials, and numerous functional compounds. While rampant human activities are disrupting planets’ geophysical flows, it is urgent to develop sustainable solutions with novel feedstocks and innovative valorization pathways. With the need to reduce greenhouse gas emissions and enhance circularity, new raw materials termed the next-generation feedstocks (<em>NGFs</em>), such as carbon dioxide, methane, methanol, formic acid, and acetic acid, have emerged as potential feedstocks for bio-based processes. So far, no such review exists that compares the performance of conventional, sugar, lignocellulosic, algae-based feedstocks, and <em>NGFs</em>, which biotechnology could upcycle into a wide range of products. In this review, the economic and environmental performances of the feedstocks are analyzed, and quantifications are presented and standardized based on techno-economic analysis and life cycle assessment models. The main parameters for comparison included the geographical location, unit production cost, and environmental impact categories. The results show that the economic and environmental performances are highly variable among the different feedstocks and their processing routes, also depicting evident tradeoffs. Carbon dioxide, sugar cane molasses and glycerol from waste streams are performing better on assessed indicators overall than other potential feedstocks. Nonetheless, this designed data source is the first step for reliable feedstock selection based on sustainability criteria.</div></div>","PeriodicalId":52676,"journal":{"name":"Current Research in Biotechnology","volume":"9 ","pages":"Article 100275"},"PeriodicalIF":3.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cardiovascular diseases (CVDs) have risen drastically after the COVID era as post-COVID symptoms. “Nattokinase” (NK), the thrombolytic enzyme, is known for its substrate-specific thrombolytic, protease, and fibrinolytic activity to ameliorate CVDs. Primarily, NK was isolated from Bacillus subtilis natto using either solid- or liquid-state fermentation technology. Later, the researchers studied the arpN gene, which encodes NK and is used in various biotechnological approaches with different hosts such as Bacillus spp., Escherichia coli, Lactobacillus spp., and Pichia pastoris. The global market potential of NK in treating CVDs has recently garnered attention, leading to a demand for bulk production and ultrapure forms of NK. This demand has put pressure on strain improvements and innovation in production technology. The patent scenario suggested that NK have been given more attention with 763 patents compared to streptokinase, staphylokinase and serratiopeptidase. This review critically examined the biotechnological aspects of NK in amelioration of CVDs, focusing on current production technologies, strain improvement strategies, protected NK innovations, and future research directions. It emphasizes the need for advanced approaches like CRISPR technology and novel production protocols to develop high-quality, ultrapure NK. It is also aligning with Sustainable Development Goal (SDG) 3: “Good Health and Well-Being.”
{"title":"Multifaceted microbial enzyme nattokinase: a comprehensive review on therapeutics applications, production technologies and intellectual property landscape","authors":"Tirth Chetankumar Bhatt , Viralkumar B. Mandaliya , Munir Ibrahim , Avani Bhimani , Asmita Detroja , Jaykumar Koradiya , Gaurav Sanghvi , Ashok Kumar Bishoyi","doi":"10.1016/j.crbiot.2025.100316","DOIUrl":"10.1016/j.crbiot.2025.100316","url":null,"abstract":"<div><div>Cardiovascular diseases (CVDs) have risen drastically after the COVID era as post-COVID symptoms. “Nattokinase” (NK), the thrombolytic enzyme, is known for its substrate-specific thrombolytic, protease, and fibrinolytic activity to ameliorate CVDs. Primarily, NK was isolated from <em>Bacillus subtilis natto</em> using either solid- or liquid-state fermentation technology. Later, the researchers studied the <em>arpN</em> gene, which encodes NK and is used in various biotechnological approaches with different hosts such as <em>Bacillus</em> spp., <em>Escherichia coli</em>, <em>Lactobacillus</em> spp., and <em>Pichia pastoris</em>. The global market potential of NK in treating CVDs has recently garnered attention, leading to a demand for bulk production and ultrapure forms of NK. This demand has put pressure on strain improvements and innovation in production technology. The patent scenario suggested that NK have been given more attention with 763 patents compared to streptokinase, staphylokinase and serratiopeptidase. This review critically examined the biotechnological aspects of NK in amelioration of CVDs, focusing on current production technologies, strain improvement strategies, protected NK innovations, and future research directions. It emphasizes the need for advanced approaches like CRISPR technology and novel production protocols to develop high-quality, ultrapure NK. It is also aligning with Sustainable Development Goal (SDG) 3: “Good Health and Well-Being.”</div></div>","PeriodicalId":52676,"journal":{"name":"Current Research in Biotechnology","volume":"10 ","pages":"Article 100316"},"PeriodicalIF":3.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655692","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}
Pub Date : 2025-01-01Epub Date: 2025-10-20DOI: 10.1016/j.crbiot.2025.100345
Shefali Thanta , Garima Bhanwala , Neetika Kimta , Vishnu D. Rajput , Tabarak Malik
Growing global food demand and stagnant yields caused by nutrient inefficiencies threaten sustainable agriculture. Conventional chemical fertilizers, while increasing crop productivity, often alters soil physicochemical and biological properties and cause environmental damage, highlighting a critical gap in sustainable crop nutrition. Moreover, conventional application methods are causing chemical overdosing, leading to eutrophication, nitrogen volatilization, and progressive release of greenhouse gases. In contrast, nanotechnology provides a groundbreaking solution. Nano-fertilizers (NFs) serve as concentrated sources of plant nutrients, encapsulated in nanomaterials that easily pass through stomata and root hairs, and penetrate deeper into plant tissues. This significantly decreases nutrient loss, enhances nutrient efficiency, thereby boosting plant productivity. The green synthesis of NFs uses eco-friendly plant extracts as reducing agents, and their high solubility allows for easy foliar and root application. This review offers a structured evaluation of the potential for green-synthesized NFs as effective, environmentally friendly alternatives. Green NFs significantly boost crop yields compared to conventional chemical fertilizers, while also helping to mitigate plant stress caused by biotic and abiotic factors. Furthermore, with additional long-term research, commercial scaling, and regulatory support, green NFs could transform fertilization practices. Moreover, this also provides strategic insights to address nutrient use inefficiencies and promote a more sustainable ecosystem.
{"title":"Green-synthesized nano-fertilizers: a sustainable approach to enhancing crop productivity and stress tolerance","authors":"Shefali Thanta , Garima Bhanwala , Neetika Kimta , Vishnu D. Rajput , Tabarak Malik","doi":"10.1016/j.crbiot.2025.100345","DOIUrl":"10.1016/j.crbiot.2025.100345","url":null,"abstract":"<div><div>Growing global food demand and stagnant yields caused by nutrient inefficiencies threaten sustainable agriculture. Conventional chemical fertilizers, while increasing crop productivity, often alters soil physicochemical and biological properties and cause environmental damage, highlighting a critical gap in sustainable crop nutrition. Moreover, conventional application methods are causing chemical overdosing, leading to eutrophication, nitrogen volatilization, and progressive release of greenhouse gases. In contrast, nanotechnology provides a groundbreaking solution. Nano-fertilizers<!--> <!-->(NFs) serve as concentrated sources of plant nutrients, encapsulated in nanomaterials that easily pass through stomata and root hairs, and penetrate deeper into plant tissues. This significantly decreases nutrient loss, enhances nutrient efficiency, thereby boosting plant productivity. The green synthesis of NFs uses eco-friendly plant extracts as reducing agents, and their high solubility allows for easy foliar and root application. This review offers a structured evaluation of the potential for green-synthesized NFs as effective, environmentally friendly alternatives. Green NFs significantly boost crop yields compared to conventional chemical fertilizers, while also helping to mitigate plant stress caused by biotic and abiotic factors. Furthermore, with additional long-term research, commercial scaling, and regulatory support, green NFs could transform fertilization practices. Moreover, this also provides strategic insights to address nutrient use inefficiencies and promote a more sustainable ecosystem.</div></div>","PeriodicalId":52676,"journal":{"name":"Current Research in Biotechnology","volume":"10 ","pages":"Article 100345"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145361514","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}
Pub Date : 2025-01-01Epub Date: 2025-01-17DOI: 10.1016/j.crbiot.2025.100273
O. Bortone , S. Fiorenza , M. Baldassarre , N. Falco , M. Amidi , T. Markkula , P.A. Netti , E. Torino
Therapeutic proteins have great potentialities for the care of a wide spectrum of diseases, for which other small synthetic drugs result ineffective. Due to challenges related to their immunogenicity, the journey of biologics into clinics still faces obstacles. Among the causes of protein immunogenicity, their natural propensity to aggregation is crucial, indeed, to study their stability, pharmaceutical formulations are generally exposed to diverse environmental physicochemical conditions. Traditional approaches to explore protein behavior are effort-demanding, lengthy and expensive, resulting in a limited knowledge of biomolecule stability. There is an urgent need to develop faster and more cost-effective technologies for biological formulation development. In this work, the conceptualization, design and implementation of a modular and automated microfluidic platform to provide thermal stress to highly concentrated and viscous pharmaceutical formulations is presented. The microfluidic platform validity in terms of reliability and comparability to a forced degradation batch-wise stimulation is demonstrated by thermally stimulating and analyzing through SE-HPLC (Size Exclusion – High Performance Liquid Chromatography) different high concentration (> 100 mg/ml) therapeutic nanobody-based formulations. Remarkably, the ranking of the formulations returned by the microfluidic thermal stress platform follows the same trend obtained through well-established industrial in-batch stimulations. Furthermore, data coming from microfluidic stimulations well correlates to outcomes coming from industrial methodologies for storage and accelerated stability studies.
{"title":"Design of a thermal stress microfluidic platform to screen stability of therapeutic proteins in pharmaceutical formulations","authors":"O. Bortone , S. Fiorenza , M. Baldassarre , N. Falco , M. Amidi , T. Markkula , P.A. Netti , E. Torino","doi":"10.1016/j.crbiot.2025.100273","DOIUrl":"10.1016/j.crbiot.2025.100273","url":null,"abstract":"<div><div>Therapeutic proteins have great potentialities for the care of a wide spectrum of diseases, for which other small synthetic drugs result ineffective. Due to challenges related to their immunogenicity, the journey of biologics into clinics still faces obstacles. Among the causes of protein immunogenicity, their natural propensity to aggregation is crucial, indeed, to study their stability, pharmaceutical formulations are generally exposed to diverse environmental physicochemical conditions. Traditional approaches to explore protein behavior are effort-demanding, lengthy and expensive, resulting in a limited knowledge of biomolecule stability. There is an urgent need to develop faster and more cost-effective technologies for biological formulation development. In this work, the conceptualization, design and implementation of a modular and automated microfluidic platform to provide thermal stress to highly concentrated and viscous pharmaceutical formulations is presented. The microfluidic platform validity in terms of reliability and comparability to a forced degradation batch-wise stimulation is demonstrated by thermally stimulating and analyzing through SE-HPLC (Size Exclusion – High Performance Liquid Chromatography) different high concentration (> 100 mg/ml) therapeutic nanobody-based formulations. Remarkably, the ranking of the formulations returned by the microfluidic thermal stress platform follows the same trend obtained through well-established industrial in-batch stimulations. Furthermore, data coming from microfluidic stimulations well correlates to outcomes coming from industrial methodologies for storage and accelerated stability studies.</div></div>","PeriodicalId":52676,"journal":{"name":"Current Research in Biotechnology","volume":"9 ","pages":"Article 100273"},"PeriodicalIF":3.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01Epub Date: 2025-02-26DOI: 10.1016/j.crbiot.2025.100280
Joanna Bensz , Dariusz Sołdacki , Zilin Ma , Farhan Bin Matin , Maima Matin , Atanas G. Atanasov
As social media platforms continue to play an increasingly significant role in shaping public discourse and disseminating scientific information, understanding how longevity and aging-related topics are discussed online has become crucial for researchers and healthcare professionals. This study investigates the global discourse on longevity and aging through the analysis of the hashtag #Longevity on the social media platform X (formerly Twitter) over a six-year period from August 1, 2018, to August 1, 2024. A total of 382 032 posts were shared by 109 935 users across 200 countries. The analysis focused on revealing key themes, geographical distribution, sentiment analysis, and the most frequently mentioned supplements and drugs related to longevity. The results show a high level of engagement with the hashtag, primarily driven by users from the United States, followed by the United Kingdom and Canada. Sentiment analysis revealed predominantly positive attitudes towards longevity-related topics, with a slight but statistically significant (p < 0.0001) decline during and after the COVID-19 pandemic. The study identified nicotinamide mononucleotide, rapamycin, and green tea as the most frequently mentioned supplements or drugs in longevity discussions. Notably, there was a significant increase in discussions about niacin derivatives, particularly nicotinamide mononucleotide, during and after the pandemic period. This study highlights the importance of social media as a tool for gauging public interest and sentiment towards scientific topics like longevity, providing valuable insights for researchers, healthcare professionals, and policymakers to enhance science communication and public engagement.
{"title":"Insights from antiaging-related X discussions: A six-year #Longevity hashtag analysis study","authors":"Joanna Bensz , Dariusz Sołdacki , Zilin Ma , Farhan Bin Matin , Maima Matin , Atanas G. Atanasov","doi":"10.1016/j.crbiot.2025.100280","DOIUrl":"10.1016/j.crbiot.2025.100280","url":null,"abstract":"<div><div>As social media platforms continue to play an increasingly significant role in shaping public discourse and disseminating scientific information, understanding how longevity and aging-related topics are discussed online has become crucial for researchers and healthcare professionals. This study investigates the global discourse on longevity and aging through the analysis of the hashtag #Longevity on the social media platform X (formerly Twitter) over a six-year period from August 1, 2018, to August 1, 2024. A total of 382 032 posts were shared by 109 935 users across 200 countries. The analysis focused on revealing key themes, geographical distribution, sentiment analysis, and the most frequently mentioned supplements and drugs related to longevity. The results show a high level of engagement with the hashtag, primarily driven by users from the United States, followed by the United Kingdom and Canada. Sentiment analysis revealed predominantly positive attitudes towards longevity-related topics, with a slight but statistically significant (p < 0.0001) decline during and after the COVID-19 pandemic. The study identified nicotinamide mononucleotide, rapamycin, and green tea as the most frequently mentioned supplements or drugs in longevity discussions. Notably, there was a significant increase in discussions about niacin derivatives, particularly nicotinamide mononucleotide, during and after the pandemic period. This study highlights the importance of social media as a tool for gauging public interest and sentiment towards scientific topics like longevity, providing valuable insights for researchers, healthcare professionals, and policymakers to enhance science communication and public engagement.</div></div>","PeriodicalId":52676,"journal":{"name":"Current Research in Biotechnology","volume":"9 ","pages":"Article 100280"},"PeriodicalIF":3.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01Epub Date: 2025-04-28DOI: 10.1016/j.crbiot.2025.100294
David Vorländer, Kristin Hoffmann, Katrin Dohnt
The intestinal microbiota plays a crucial role in human health and disease, and is therefore of great interest in various research areas. However, studies with humans are limited and difficult to control, leading to a growing demand for sophisticated bioreactor systems that can mimic human intestinal conditions in vitro. The main objective of this study is to compare the in vitro growth of a defined microbiota in the recently published PEristaltic mixed Tubular bioReactor (PETR) with previously published in vivo data for the same microbiota. PETR simulates various colonic conditions, including peristaltic mixing, dialytic water and metabolite removal, and a temporally constant and longitudinally progressive pH gradient in a continuously operated tubular bioreactor. The Oligo-Mouse-Microbiota OMM12 was chosen as model microbiota and consists of 12 bacteria representing the major phyla of the mouse intestine. During 10 d continuous cultivation in PETR, community composition was regularly analyzed using strain-specific qPCR. The results were consistent with the formation of organic acids measured by HPLC. After approximately 6 d, the optical density, concentrations of organic acids, and the microbiota composition remained relatively stable. Despite the different intestinal conditions of humans and mice, several similarities between reactor cultivation and gnotobiotic mouse model confirm PETR as a suitable system for microbiota research.
{"title":"Cultivation of the Oligo-Mouse-Microbiota OMM12 in the peristaltic mixed tubular bioreactor PETR","authors":"David Vorländer, Kristin Hoffmann, Katrin Dohnt","doi":"10.1016/j.crbiot.2025.100294","DOIUrl":"10.1016/j.crbiot.2025.100294","url":null,"abstract":"<div><div>The intestinal microbiota plays a crucial role in human health and disease, and is therefore of great interest in various research areas. However, studies with humans are limited and difficult to control, leading to a growing demand for sophisticated bioreactor systems that can mimic human intestinal conditions <em>in vitro</em>. The main objective of this study is to compare the <em>in vitro</em> growth of a defined microbiota in the recently published PEristaltic mixed Tubular bioReactor (PETR) with previously published <em>in vivo</em> data for the same microbiota. PETR simulates various colonic conditions, including peristaltic mixing, dialytic water and metabolite removal, and a temporally constant and longitudinally progressive pH gradient in a continuously operated tubular bioreactor. The Oligo-Mouse-Microbiota OMM<sup>12</sup> was chosen as model microbiota and consists of 12 bacteria representing the major phyla of the mouse intestine. During 10<!--> <!-->d continuous cultivation in PETR, community composition was regularly analyzed using strain-specific qPCR. The results were consistent with the formation of organic acids measured by HPLC. After approximately 6<!--> <!-->d, the optical density, concentrations of organic acids, and the microbiota composition remained relatively stable. Despite the different intestinal conditions of humans and mice, several similarities between reactor cultivation and gnotobiotic mouse model confirm PETR as a suitable system for microbiota research.</div></div>","PeriodicalId":52676,"journal":{"name":"Current Research in Biotechnology","volume":"9 ","pages":"Article 100294"},"PeriodicalIF":3.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143907644","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}
Pub Date : 2025-01-01Epub Date: 2025-04-15DOI: 10.1016/j.crbiot.2025.100282
Rajeev K. Singla , Himel Mondal , Shailja Singla , Ronita De , Sahar Behzad , Mihnea-Alexandru Găman , Siva Sai Chandragiri , Merisa Cenanovic , Jayanta Kumar Patra , Jennifer R. Depew , Hemanth Kumar Boyina , Abdulkadir Yusif Maigoro , Soojin Lee , Omar M. Atrooz , Gitishree Das , Fabien Schultz , Emad Mohamed Abdallah , Hitesh Chopra , Jamil Ahmad , Rupesh K. Gautam , Bairong Shen
Background
Respiratory tract infections are a common health issue, driving interest in preventive strategies like nutritional supplements, while evidence on their usage and effectiveness remains limited. In this context, social media platforms, particularly X (formerly Twitter), provide a unique opportunity to gather large-scale public health-related data.
Objectives
In this study, we aimed to survey participants’ uses and opinions on nutritional supplements in prevention or treatment of respiratory tract infections, by using X.
Methods
A survey was conducted between 1st and 15th December 2022. A single open-ended question “Which are the best dietary supplements to counteract respiratory infections?“ was asked. One week after the start of the survey, a poll was posted to get more relevant information and boost the survey’s reach. Total endorsements were calculated for each tweet posted as the total sum of replies, retweets, and likes.
Results
The open-ended question received a total of 118 retweets, 39 quotes, and 371 likes, while the poll received 56 retweets, 13 quotes, and 67 likes. A total of 495 replies, 2,251 retweets, 5,118 likes, and 148 quotes were received for the question and its related tweets. Vitamin D (1,607 endorsements), zinc (1,347 endorsements), vitamin C (803 endorsements), magnesium (694 endorsements), and honey (661 endorsements) were the nutritional supplements that received most endorsements.
Conclusion
Various foods, drinks, and natural ingredients have been suggested as potentially helpful for counteracting respiratory infections. Approximately half of respondents indicated using such supplements for themselves. The result of this study supports the idea that the X platform can be used as an effective survey tool to study global health-related behaviours and trends.
{"title":"Exploring nutritional supplement use for countering respiratory tract infections through an X (formerly Twitter)-based survey","authors":"Rajeev K. Singla , Himel Mondal , Shailja Singla , Ronita De , Sahar Behzad , Mihnea-Alexandru Găman , Siva Sai Chandragiri , Merisa Cenanovic , Jayanta Kumar Patra , Jennifer R. Depew , Hemanth Kumar Boyina , Abdulkadir Yusif Maigoro , Soojin Lee , Omar M. Atrooz , Gitishree Das , Fabien Schultz , Emad Mohamed Abdallah , Hitesh Chopra , Jamil Ahmad , Rupesh K. Gautam , Bairong Shen","doi":"10.1016/j.crbiot.2025.100282","DOIUrl":"10.1016/j.crbiot.2025.100282","url":null,"abstract":"<div><h3>Background</h3><div>Respiratory tract infections are a common health issue, driving interest in preventive strategies like nutritional supplements, while evidence on their usage and effectiveness remains limited. In this context, social media platforms, particularly X (formerly Twitter), provide a unique opportunity to gather large-scale public health-related data.</div></div><div><h3>Objectives</h3><div>In this study, we aimed to survey participants’ uses and opinions on nutritional supplements in prevention or treatment of respiratory tract infections, by using X.</div></div><div><h3>Methods</h3><div>A survey was conducted between 1st and 15th December 2022. A single open-ended question “Which are the best dietary supplements to counteract respiratory infections?“ was asked. One week after the start of the survey, a poll was posted to get more relevant information and boost the survey’s reach. Total endorsements were calculated for each tweet posted as the total sum of replies, retweets, and likes.</div></div><div><h3>Results</h3><div>The open-ended question received a total of 118 retweets, 39 quotes, and 371 likes, while the poll received 56 retweets, 13 quotes, and 67 likes. A total of 495 replies, 2,251 retweets, 5,118 likes, and 148 quotes were received for the question and its related tweets. Vitamin D (1,607 endorsements), zinc (1,347 endorsements), vitamin C (803 endorsements), magnesium (694 endorsements), and honey (661 endorsements) were the nutritional supplements that received most endorsements.</div></div><div><h3>Conclusion</h3><div>Various foods, drinks, and natural ingredients have been suggested as potentially helpful for counteracting respiratory infections. Approximately half of respondents indicated using such supplements for themselves. The result of this study supports the idea that the X platform can be used as an effective survey tool to study global health-related behaviours and trends.</div></div>","PeriodicalId":52676,"journal":{"name":"Current Research in Biotechnology","volume":"9 ","pages":"Article 100282"},"PeriodicalIF":3.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935131","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}
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