LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Your last searches

  1. AU="Han, Bingnan"
  2. AU="Kowol, Christian R"

Search results

Result 1 - 10 of total 111

Search options

  1. Article ; Online: Precautions for seafood consumers: An updated review of toxicity, bioaccumulation, and rapid detection methods of marine biotoxins.

    Wang, Yifan / Javeed, Ansar / Jian, Cuiqin / Zeng, Qiuyu / Han, Bingnan

    Ecotoxicology and environmental safety

    2024  Volume 274, Page(s) 116201

    Abstract: Seafood products are globally consumed, and there is an increasing demand for the quality and safety of these products among consumers. Some seafoods are easily contaminated by marine biotoxins in natural environments or cultured farming processes. When ... ...

    Abstract Seafood products are globally consumed, and there is an increasing demand for the quality and safety of these products among consumers. Some seafoods are easily contaminated by marine biotoxins in natural environments or cultured farming processes. When humans ingest different toxins accumulated in seafood, they may exhibit different poisoning symptoms. According to the investigations, marine toxins produced by harmful algal blooms and various other marine organisms mainly accumulate in the body organs such as liver and digestive tract of seafood animals. Several regions around the world have reported incidents of seafood poisoning by biotoxins, posing a threat to human health. Thus, most countries have legislated to specify the permissible levels of these biotoxins in seafood. Therefore, it is necessary for seafood producers and suppliers to conduct necessary testing of toxins in seafood before and after harvesting to prohibit excessive toxins containing seafood from entering the market, which therefore can reduce the occurrence of seafood poisoning incidents. In recent years, some technologies which can quickly, conveniently, and sensitively detect biological toxins in seafood, have been developed and validated, these technologies have the potential to help seafood producers, suppliers and regulatory authorities. This article reviews the seafood toxins sources and types, mechanism of action and bioaccumulation of marine toxins, as well as legislation and rapid detection technologies for biotoxins in seafood for official and fishermen supervision.
    MeSH term(s) Animals ; Humans ; Marine Toxins/toxicity ; Seafood/analysis ; Bioaccumulation ; Foodborne Diseases/epidemiology ; Harmful Algal Bloom
    Chemical Substances Marine Toxins
    Language English
    Publishing date 2024-03-14
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 436536-7
    ISSN 1090-2414 ; 0147-6513
    ISSN (online) 1090-2414
    ISSN 0147-6513
    DOI 10.1016/j.ecoenv.2024.116201
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: Recent advances of anti-angiogenic inhibitors targeting VEGF/VEGFR axis.

    Wang, Lei / Liu, Wang-Qing / Broussy, Sylvain / Han, Bingnan / Fang, Hongming

    Frontiers in pharmacology

    2024  Volume 14, Page(s) 1307860

    Abstract: Vascular endothelial growth factors (VEGF), Vascular endothelial growth factor receptors (VEGFR) and their downstream signaling pathways are promising targets in anti-angiogenic therapy. They constitute a crucial system to regulate physiological and ... ...

    Abstract Vascular endothelial growth factors (VEGF), Vascular endothelial growth factor receptors (VEGFR) and their downstream signaling pathways are promising targets in anti-angiogenic therapy. They constitute a crucial system to regulate physiological and pathological angiogenesis. In the last 20 years, many anti-angiogenic drugs have been developed based on VEGF/VEGFR system to treat diverse cancers and retinopathies, and new drugs with improved properties continue to emerge at a fast rate. They consist of different molecular structures and characteristics, which enable them to inhibit the interaction of VEGF/VEGFR, to inhibit the activity of VEGFR tyrosine kinase (TK), or to inhibit VEGFR downstream signaling. In this paper, we reviewed the development of marketed anti-angiogenic drugs involved in the VEGF/VEGFR axis, as well as some important drug candidates in clinical trials. We discuss their mode of action, their clinical benefits, and the current challenges that will need to be addressed by the next-generation of anti-angiogenic drugs. We focus on the molecular structures and characteristics of each drug, including those approved only in China.
    Language English
    Publishing date 2024-01-04
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2587355-6
    ISSN 1663-9812
    ISSN 1663-9812
    DOI 10.3389/fphar.2023.1307860
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: A Novel Multifunctional Crosslinking PVA/CMCS Hydrogel Containing Cyclic Peptide Actinomycin X2 and PA@Fe with Excellent Antibacterial and Commendable Mechanical Properties.

    Chen, Fengyun / Javeed, Ansar / Zeng, Qiuyu / Zhang, Quan / Han, Bingnan

    Chemistry & biodiversity

    2023  Volume 20, Issue 8, Page(s) e202300831

    Abstract: Bacterial infected environments and resulting bacterial infections have been threatening the human health globally. Due to increased bacterial resistance caused by improper and excessive use of antibiotics, antibacterial biomaterials are being developed ... ...

    Abstract Bacterial infected environments and resulting bacterial infections have been threatening the human health globally. Due to increased bacterial resistance caused by improper and excessive use of antibiotics, antibacterial biomaterials are being developed as alternatives to antibiotics in some cases. Herein, an advanced multifunctional hydrogel with excellent antibacterial properties, enhanced mechanical properties, biocompatibility and self-healing performance, was designed through freezing-thawing method. This hydrogel network is composed of polyvinyl alcohol (PVA), carboxymethyl chitosan (CMCS), protocatechualdehyde (PA), ferric iron (Fe) and an antimicrobial cyclic peptide actinomycin X2 (Ac.X2). The double dynamic bonds among protocatechualdehyde (PA), ferric iron (Fe) and carboxymethyl chitosan containing coordinate bond (catechol-Fe) as well as dynamic Schiff base bonds and hydrogen bonds endowed the hydrogel with enhanced mechanical properties. Successful formation of hydrogel was confirmed through ATR-IR and XRD, and structural evaluation through SEM analysis, whereas mechanical properties were tested with electromechanical universal testing machine. The resulting PVA/CMCS/Ac.X2/PA@Fe (PCXPA) hydrogel has favorable biocompatibility and excellent broad-spectrum antimicrobial activity against both S. aureus (95.3 %) and E. coli (90.2 %) compared with free-soluble Ac.X2, which exhibited subpar performance against E. coli reported in our previous studies. This work provides a new insight on preparing multifunctional hydrogels containing antimicrobial peptides as antibacterial material.
    MeSH term(s) Humans ; Chitosan/chemistry ; Peptides, Cyclic ; Polyvinyl Alcohol/chemistry ; Escherichia coli ; Staphylococcus aureus ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/chemistry ; Hydrogels/pharmacology ; Hydrogels/chemistry ; Catechols ; Anti-Infective Agents ; Iron
    Chemical Substances protocatechualdehyde (4PVP2HCH4T) ; actinomycin X2 ; Chitosan (9012-76-4) ; Peptides, Cyclic ; polyvinyl alcohol hydrogel ; Polyvinyl Alcohol (9002-89-5) ; Anti-Bacterial Agents ; Hydrogels ; Catechols ; Anti-Infective Agents ; Iron (E1UOL152H7)
    Language English
    Publishing date 2023-07-07
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2139001-0
    ISSN 1612-1880 ; 1612-1872
    ISSN (online) 1612-1880
    ISSN 1612-1872
    DOI 10.1002/cbdv.202300831
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article: Natural Products from Actinomycetes Associated with Marine Organisms

    Chen, Jianing / Xu, Lin / Zhou, Yanrong / Han, Bingnan

    Marine drugs. 2021 Nov. 10, v. 19, no. 11

    2021  

    Abstract: The actinomycetes have proven to be a rich source of bioactive secondary metabolites and play a critical role in the development of pharmaceutical researches. With interactions of host organisms and having special ecological status, the actinomycetes ... ...

    Abstract The actinomycetes have proven to be a rich source of bioactive secondary metabolites and play a critical role in the development of pharmaceutical researches. With interactions of host organisms and having special ecological status, the actinomycetes associated with marine animals, marine plants, macroalgae, cyanobacteria, and lichens have more potential to produce active metabolites acting as chemical defenses to protect the host from predators as well as microbial infection. This review focuses on 536 secondary metabolites (SMs) from actinomycetes associated with these marine organisms covering the literature to mid-2021, which will highlight the taxonomic diversity of actinomycetes and the structural classes, biological activities of SMs. Among all the actinomycetes listed, members of Streptomyces (68%), Micromonospora (6%), and Nocardiopsis (3%) are dominant producers of secondary metabolites. Additionally, alkaloids (37%), polyketides (33%), and peptides (15%) comprise the largest proportion of natural products with mostly antimicrobial activity and cytotoxicity. Furthermore, the data analysis and clinical information of SMs have been summarized in this article, suggesting that some of these actinomycetes with multiple host organisms deserve more attention to their special ecological status and genetic factors.
    Keywords Cyanobacteria ; Micromonospora ; Nocardiopsis ; Streptomyces ; antimicrobial properties ; cytotoxicity ; macroalgae ; peptides ; polyketides ; secondary metabolites ; species diversity
    Language English
    Dates of publication 2021-1110
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2175190-0
    ISSN 1660-3397
    ISSN 1660-3397
    DOI 10.3390/md19110629
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  5. Article ; Online: Treatment of allergy: Overview of synthetic anti-allergy small molecules in medicinal chemistry.

    Zhang, Shanshan / Liu, Yi / Javeed, Ansar / Jian, Cuiqin / Sun, Jinlyu / Wu, Shandong / Han, Bingnan

    European journal of medicinal chemistry

    2023  Volume 249, Page(s) 115151

    Abstract: The prevalence of allergic diseases has been continuously increasing over the past few decades, affecting approximately 20-30% of the global population. Allergic reactions to infection of respiratory tract, digestive tract, and skin system involve ... ...

    Abstract The prevalence of allergic diseases has been continuously increasing over the past few decades, affecting approximately 20-30% of the global population. Allergic reactions to infection of respiratory tract, digestive tract, and skin system involve multiple different targets. The main difficulty of anti-allergy research is how to develop drugs with good curative effect and less side effects by adopting new multi-targets and mechanisms according to the clinical characteristics of different allergic populations and different allergens. This review focuses on information concerning potential therapeutic targets as well as the synthetic anti-allergy small molecules with respect to their medicinal chemistry. The structure-activity relationship and the mechanism of compound-target interaction were highlighted with perspective to histamine-1/4 receptor antagonists, leukotriene biosynthesis, Th2 cytokines inhibitors, and calcium channel blockers. We hope that the study of chemical scaffold modification and optimization for different lead compounds summarized in this review not only lays the foundation for improvement of success rate and efficiency of virtual screening of antiallergic drugs, but also can provide valuable reference for the drug design of related promising research such as allergy, inflammation, and cancer.
    MeSH term(s) Humans ; Anti-Allergic Agents/pharmacology ; Anti-Allergic Agents/therapeutic use ; Chemistry, Pharmaceutical ; Hypersensitivity/drug therapy ; Cytokines
    Chemical Substances Anti-Allergic Agents ; Cytokines
    Language English
    Publishing date 2023-01-27
    Publishing country France
    Document type Journal Article ; Review
    ZDB-ID 188597-2
    ISSN 1768-3254 ; 0009-4374 ; 0223-5234
    ISSN (online) 1768-3254
    ISSN 0009-4374 ; 0223-5234
    DOI 10.1016/j.ejmech.2023.115151
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Preparation and Characterization of a Silk Fibroin/Polyurethane Fiber Blend Membrane Containing Actinomycin X2 with Excellent Mechanical Properties and Enhanced Antibacterial Activities.

    Zhang, Quan / Chen, Fengyun / Javeed, Ansar / Wang, Miaofeng / Si, Ranran / Li, Jiaxing / Han, Bingnan

    Chemistry & biodiversity

    2023  Volume 20, Issue 6, Page(s) e202300445

    Abstract: Development of suitable antimicrobial biomaterials for hygienic wound dressing and healing is an important requirement for medical application. Durable mechanical properties increase the application range of biomaterial in different environmental and ... ...

    Abstract Development of suitable antimicrobial biomaterials for hygienic wound dressing and healing is an important requirement for medical application. Durable mechanical properties increase the application range of biomaterial in different environmental and biological conditions. Due to the inherent brittleness of silk fibroin (SF), polyurethane fiber (PUF) was used to modify SF containing actinomycin X2 (Ac.X2) to prepare silk fibroin@actinomycin X
    MeSH term(s) Fibroins/pharmacology ; Fibroins/chemistry ; Polyurethanes/pharmacology ; Polyurethanes/chemistry ; Spectroscopy, Fourier Transform Infrared ; Staphylococcus aureus ; Silk/chemistry ; Biocompatible Materials/chemistry ; Anti-Bacterial Agents/pharmacology
    Chemical Substances Fibroins (9007-76-5) ; Polyurethanes ; actinomycin X2 ; Silk ; Biocompatible Materials ; Anti-Bacterial Agents
    Language English
    Publishing date 2023-05-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2139001-0
    ISSN 1612-1880 ; 1612-1872
    ISSN (online) 1612-1880
    ISSN 1612-1872
    DOI 10.1002/cbdv.202300445
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Natural Products from Actinomycetes Associated with Marine Organisms.

    Chen, Jianing / Xu, Lin / Zhou, Yanrong / Han, Bingnan

    Marine drugs

    2021  Volume 19, Issue 11

    Abstract: The actinomycetes have proven to be a rich source of bioactive secondary metabolites and play a critical role in the development of pharmaceutical researches. With interactions of host organisms and having special ecological status, the actinomycetes ... ...

    Abstract The actinomycetes have proven to be a rich source of bioactive secondary metabolites and play a critical role in the development of pharmaceutical researches. With interactions of host organisms and having special ecological status, the actinomycetes associated with marine animals, marine plants, macroalgae, cyanobacteria, and lichens have more potential to produce active metabolites acting as chemical defenses to protect the host from predators as well as microbial infection. This review focuses on 536 secondary metabolites (SMs) from actinomycetes associated with these marine organisms covering the literature to mid-2021, which will highlight the taxonomic diversity of actinomycetes and the structural classes, biological activities of SMs. Among all the actinomycetes listed, members of
    MeSH term(s) Actinobacteria ; Animals ; Anti-Bacterial Agents/chemistry ; Anti-Bacterial Agents/pharmacology ; Aquatic Organisms ; Biological Products ; Humans
    Chemical Substances Anti-Bacterial Agents ; Biological Products
    Language English
    Publishing date 2021-11-10
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2175190-0
    ISSN 1660-3397 ; 1660-3397
    ISSN (online) 1660-3397
    ISSN 1660-3397
    DOI 10.3390/md19110629
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Preparation and properties of polyvinyl alcohol/chitosan-based hydrogel with dual pH/NH

    Zeng, Qiuyu / Wang, Yifan / Javeed, Ansar / Chen, Fengyun / Li, Jiaxing / Guan, Yating / Chen, Baiyu / Han, Bingnan

    International journal of biological macromolecules

    2024  Volume 263, Issue Pt 2, Page(s) 130440

    Abstract: To address the issue of food spoilage causing health and economic loss, we developed a pH/ ... ...

    Abstract To address the issue of food spoilage causing health and economic loss, we developed a pH/NH
    MeSH term(s) Chitosan/chemistry ; Polyvinyl Alcohol/chemistry ; Spectroscopy, Fourier Transform Infrared ; Hydrogels/chemistry ; Seafood ; Hydrogen-Ion Concentration ; Food Packaging/methods ; Anthocyanins/chemistry
    Chemical Substances Chitosan (9012-76-4) ; polyvinyl alcohol hydrogel ; Polyvinyl Alcohol (9002-89-5) ; Hydrogels ; Anthocyanins
    Language English
    Publishing date 2024-02-26
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2024.130440
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Structures and Anti-Allergic Activities of Natural Products from Marine Organisms

    Chen, Na / Zhang, Shanshan / Javeed, Ansar / Jian, Cuiqin / Liu, Yi / Sun, Jinlyu / Wu, Shandong / Fu, P. / Han, Bingnan

    Mar Drugs. 2023 Feb. 25, v. 21, no. 3

    2023  

    Abstract: In recent years, allergic diseases have occurred frequently, affecting more than 20% of the global population. The current first-line treatment of anti-allergic drugs mainly includes topical corticosteroids, as well as adjuvant treatment of antihistamine ...

    Abstract In recent years, allergic diseases have occurred frequently, affecting more than 20% of the global population. The current first-line treatment of anti-allergic drugs mainly includes topical corticosteroids, as well as adjuvant treatment of antihistamine drugs, which have adverse side effects and drug resistance after long-term use. Therefore, it is essential to find alternative anti-allergic agents from natural products. High pressure, low temperature, and low/lack of light lead to highly functionalized and diverse functional natural products in the marine environment. This review summarizes the information on anti-allergic secondary metabolites with a variety of chemical structures such as polyphenols, alkaloids, terpenoids, steroids, and peptides, obtained mainly from fungi, bacteria, macroalgae, sponges, mollusks, and fish. Molecular docking simulation is applied by MOE to further reveal the potential mechanism for some representative marine anti-allergic natural products to target the H1 receptor. This review may not only provide insight into information about the structures and anti-allergic activities of natural products from marine organisms but also provides a valuable reference for marine natural products with immunomodulatory activities.
    Keywords adjuvants ; adrenal cortex hormones ; anti-allergic agents ; antihistamines ; drug resistance ; fish ; macroalgae ; marine environment ; peptides ; polyphenols ; secondary metabolites ; temperature ; terpenoids
    Language English
    Dates of publication 2023-0225
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article ; Online
    ZDB-ID 2175190-0
    ISSN 1660-3397
    ISSN 1660-3397
    DOI 10.3390/md21030152
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  10. Article ; Online: Homologous High-Level Lipase and Single-Cell Protein Production with Engineered Yarrowia lipolytica via Scale-Up Fermentation for Industrial Applications

    Pan, Dujie / Dai, Shuhan / Jiao, Liangcheng / Zhou, Qinghua / Zha, Genhan / Yan, Jinyong / Han, Bingnan / Yan, Yunjun / Xu, Li

    Fermentation. 2023 Mar. 09, v. 9, no. 3

    2023  

    Abstract: Yarrowia lipolytica is a promising feed additives. Here, we aimed to produce extracellular lipases and single-cell proteins (SCPs) at high levels simultaneously through fed-batch fermentation of engineered Y. lipolytica. The parameters for 500 mL shake ... ...

    Abstract Yarrowia lipolytica is a promising feed additives. Here, we aimed to produce extracellular lipases and single-cell proteins (SCPs) at high levels simultaneously through fed-batch fermentation of engineered Y. lipolytica. The parameters for 500 mL shake flask cultures were optimized with a single factorial design. The resultant activity of lipase reached 880.6 U/mL after 84 h of fermentation, and 32.0 g/L fermentation broth of dry SCP was obtained at 120 h. To attain high SCP and lipase productivity, the high-density fed-batch fermentation of Y. lipolytica was scaled up in 10 L, 30 L, and 100 L fermentors. Using glycerol as the sole carbon source, the lipase activity peaked to 8083.3 U/mL, and the final dry SCP weight was 183.1 g/L at 94.6 h in 10 L fermentors. The extracellular lipase activity and SCP weight reached 11,100.0 U/mL and 173.3 g of dry SCP/L at 136 h in 30 L fermentors, respectively. Following 136 h of fed-batch fermentation, the extracellular lipase activity and dry SCP weight reached 8532.0 U/mL and 170.3 g/L in 100 L fermentors, respectively. A balance between the lipase secretion and growth of Y. lipolytica recombinant strain was achieved, indicating that an efficient fermentation strategy could promote further scale-up for industrial SCP production from engineered Y. lipolytica.
    Keywords Yarrowia lipolytica ; batch fermentation ; carbon ; carboxylic ester hydrolases ; culture flasks ; culture media ; glycerol ; protein synthesis ; secretion ; single cell protein
    Language English
    Dates of publication 2023-0309
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article ; Online
    ZDB-ID 2813985-9
    ISSN 2311-5637
    ISSN 2311-5637
    DOI 10.3390/fermentation9030268
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

To top