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  1. AU="Tsai, Shou-Kuan"
  2. AU="Jorge Andrés Urrutia-Gómez"
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  1. Article: The Rapid Detection of

    Ndraha, Nodali / Lin, Hung-Yun / Tsai, Shou-Kuan / Hsiao, Hsin-I / Lin, Han-Jia

    Foods (Basel, Switzerland)

    2023  Volume 12, Issue 21

    Abstract: Food safety concerns regarding foodborne pathogen contamination have gained global attention due to its significant implications. In this study, we developed a detection system utilizing a PCR array combined with an automated magnetic bead-based system ... ...

    Abstract Food safety concerns regarding foodborne pathogen contamination have gained global attention due to its significant implications. In this study, we developed a detection system utilizing a PCR array combined with an automated magnetic bead-based system and CE technology to enable the detection of three foodborne pathogens, namely
    Language English
    Publishing date 2023-10-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704223-6
    ISSN 2304-8158
    ISSN 2304-8158
    DOI 10.3390/foods12213895
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Blocking pathogenic Leptospira invasion with aptamer molecules targeting outer membrane LipL32 protein.

    Hsu, Shen-Hsing / Yang, Huang-Yu / Chang, Chia-Chen / Tsai, Shou-Kuan / Li, Chien / Chang, Ming-Yang / Ko, Yi-Ching / Chou, Li-Fang / Tsai, Chung-Ying / Tian, Ya-Chung / Yang, Chih-Wei

    Microbes and infection

    2024  , Page(s) 105299

    Abstract: This study aimed to develop aptamers targeting LipL32, a most abundant lipoprotein in pathogenic Leptospira, to hinder bacterial invasion. The objectives were to identify high-affinity aptamers through SELEX and evaluate their specificity and inhibitory ... ...

    Abstract This study aimed to develop aptamers targeting LipL32, a most abundant lipoprotein in pathogenic Leptospira, to hinder bacterial invasion. The objectives were to identify high-affinity aptamers through SELEX and evaluate their specificity and inhibitory effects. SELEX was employed to generate LipL32 aptamers (L32APs) over 15 rounds of selection. L32APs' binding affinity and specificity for pathogenic Leptospira were assessed. Their ability to inhibit LipL32-ECM interaction and Leptospira invasion was investigated. Animal studies were conducted to evaluate the impact of L32AP treatment on survival rates, Leptospira colonization, and kidney damage. Three L32APs with strong binding affinity were identified. They selectively detected pathogenic Leptospira, sparing non-pathogenic strains. L32APs inhibited LipL32-ECM interaction and Leptospira invasion. In animal studies, L32AP administration significantly improved survival rates, reduced Leptospira colonies, and mitigated kidney damage compared to infection alone. This pioneering research developed functional aptamers targeting pathogenic Leptospira. The identified L32APs exhibited high affinity, pathogen selectivity, and inhibition of invasion and ECM interaction. L32AP treatment showed promising results, enhancing survival rates and reducing Leptospira colonization and kidney damage. These findings demonstrate the potential of aptamers to impede pathogenic Leptospira invasion and aid in recovery from Leptospira-induced kidney injury (190 words).
    Language English
    Publishing date 2024-01-14
    Publishing country France
    Document type Journal Article
    ZDB-ID 1465093-9
    ISSN 1769-714X ; 1286-4579
    ISSN (online) 1769-714X
    ISSN 1286-4579
    DOI 10.1016/j.micinf.2024.105299
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Combining Direct PCR Technology and Capillary Electrophoresis for an Easy-to-Operate and Highly Sensitive Infectious Disease Detection System for Shrimp.

    Lin, Hung-Yun / Yen, Shao-Chieh / Tsai, Shou-Kuan / Shen, Fan / Lin, John Han-You / Lin, Han-Jia

    Life (Basel, Switzerland)

    2022  Volume 12, Issue 2

    Abstract: Infectious diseases are considered the greatest threat to the modern high-density shrimp aquaculture industry. Specificity, rapidity, and sensitivity of molecular diagnostic methods for the detection of asymptomatic infected shrimp allows preventive ... ...

    Abstract Infectious diseases are considered the greatest threat to the modern high-density shrimp aquaculture industry. Specificity, rapidity, and sensitivity of molecular diagnostic methods for the detection of asymptomatic infected shrimp allows preventive measures to be taken before disease outbreaks. Routine molecular detection of pathogens in infected shrimp can be made easier with the use of a direct polymerase chain reaction (PCR). In this study, four direct PCR reagent brands were tested, and results showed that the detection signal of direct PCR in hepatopancreatic tissue was more severely affected. In addition, portable capillary electrophoresis was applied to improve sensitivity and specificity, resulting in a pathogen detection limit of 25 copies/PCR-reaction. Juvenile shrimp from five different aquaculture ponds were tested for white spot syndrome virus infection, and the results were consistent with the Organization for Animal Health's certified standard method. Furthermore, this methodology could be used to examine single post larvae shrimp. The overall detection time was reduced by more than 58.2%. Therefore, the combination of direct PCR and capillary electrophoresis for on-site examination is valuable and has potential as a suitable tool for diagnostic, epidemiological, and pathological studies of shrimp aquaculture.
    Language English
    Publishing date 2022-02-13
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662250-6
    ISSN 2075-1729
    ISSN 2075-1729
    DOI 10.3390/life12020276
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Combination of multiplex reverse transcription recombinase polymerase amplification assay and capillary electrophoresis provides high sensitive and high-throughput simultaneous detection of avian influenza virus subtypes.

    Tsai, Shou Kuan / Chen, Chen Chih / Lin, Han Jia / Lin, Han You / Chen, Ting Tzu / Wang, Lih Chiann

    Journal of veterinary science

    2020  Volume 21, Issue 2, Page(s) e24

    Abstract: The pandemic of avian influenza viruses (AIVs) in Asia has caused enormous economic loss in poultry industry and human health threat, especially clade 2.3.4.4 H5 and H7 subtypes in recent years. The endemic chicken H6 virus in Taiwan has also brought ... ...

    Abstract The pandemic of avian influenza viruses (AIVs) in Asia has caused enormous economic loss in poultry industry and human health threat, especially clade 2.3.4.4 H5 and H7 subtypes in recent years. The endemic chicken H6 virus in Taiwan has also brought about human and dog infections. Since wild waterfowls is the major AIV reservoir, it is important to monitor the diversified subtypes in wildfowl flocks in early stage to prevent viral reassortment and transmission. To develop a more efficient and sensitive approach is a key issue in epidemic control. In this study, we integrate multiplex reverse transcription recombinase polymerase amplification (RT-RPA) and capillary electrophoresis (CE) for high-throughput detection and differentiation of AIVs in wild waterfowls in Taiwan. Four viral genes were detected simultaneously, including nucleoprotein (NP) gene of all AIVs, hemagglutinin (HA) gene of clade 2.3.4.4 H5, H6 and H7 subtypes. The detection limit of the developed detection system could achieve as low as one copy number for each of the four viral gene targets. Sixty wild waterfowl field samples were tested and all of the four gene signals were unambiguously identified within 6 h, including the initial sample processing and the final CE data analysis. The results indicated that multiplex RT-RPA combined with CE was an excellent alternative for instant simultaneous AIV detection and subtype differentiation. The high efficiency and sensitivity of the proposed method could greatly assist in wild bird monitoring and epidemic control of poultry.
    MeSH term(s) Animals ; Anseriformes ; Electrophoresis, Capillary/methods ; Electrophoresis, Capillary/veterinary ; Genes, Viral ; High-Throughput Screening Assays/veterinary ; Influenza A virus/isolation & purification ; Influenza in Birds/virology ; Multiplex Polymerase Chain Reaction/methods ; Multiplex Polymerase Chain Reaction/veterinary ; Reverse Transcriptase Polymerase Chain Reaction/methods ; Reverse Transcriptase Polymerase Chain Reaction/veterinary ; Taiwan ; Viral Proteins/isolation & purification
    Chemical Substances Viral Proteins
    Language English
    Publishing date 2020-04-06
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 2125308-0
    ISSN 1976-555X ; 1229-845X
    ISSN (online) 1976-555X
    ISSN 1229-845X
    DOI 10.4142/jvs.2020.21.e24
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Reborn from the Ashes: Turning Organic Molecules to Antimicrobial Carbon Quantum Dots.

    Harroun, Scott G / Lai, Jui-Yang / Huang, Chih-Ching / Tsai, Shou-Kuan / Lin, Han-Jia

    ACS infectious diseases

    2017  Volume 3, Issue 11, Page(s) 777–779

    Abstract: Using polyamines as the initial organic raw material and by applying simple pyrolysis methods, super cationic carbon quantum dots (CQDs) can easily be made. Since polyamines are natural products and the synthesis procedure is green, these polyamine- ... ...

    Abstract Using polyamines as the initial organic raw material and by applying simple pyrolysis methods, super cationic carbon quantum dots (CQDs) can easily be made. Since polyamines are natural products and the synthesis procedure is green, these polyamine-derived CQDs display low toxicity and high biocompatibility but possess high antibacterial activity. In addition, polyamine-derived CQDs display other unique properties, such as facilitation of wound healing and passage through the tight junction, which make them a very promising bactericide in future clinical applications.
    MeSH term(s) Anti-Bacterial Agents/chemistry ; Anti-Bacterial Agents/pharmacology ; Bacteria/drug effects ; Carbon/chemistry ; Polyamines/chemistry ; Quantum Dots/chemistry
    Chemical Substances Anti-Bacterial Agents ; Polyamines ; Carbon (7440-44-0)
    Language English
    Publishing date 2017-09-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2373-8227
    ISSN (online) 2373-8227
    DOI 10.1021/acsinfecdis.7b00150
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Replication of a Dog-Origin H6N1 Influenza Virus in Cell Culture and Mice.

    Tsai, Shou-Kuan / Shih, Cheng-Hsin / Chang, Hui-Wen / Teng, Kuang-Huan / Hsu, Wei-En / Lin, Han-Jia / Lin, Han-You / Huang, Ching-Huei / Chen, Hui-Wen / Wang, Lih-Chiann

    Viruses

    2020  Volume 12, Issue 7

    Abstract: The world's first natural avian-origin H6N1 influenza A virus infection case in dogs was confirmed in Taiwan in 2014. The H6N1 virus in chickens has been endemic in Taiwan since 1972. Whether the dog H6N1 virus has interspecies transmission potential is ... ...

    Abstract The world's first natural avian-origin H6N1 influenza A virus infection case in dogs was confirmed in Taiwan in 2014. The H6N1 virus in chickens has been endemic in Taiwan since 1972. Whether the dog H6N1 virus has interspecies transmission potential is the key issue we aim to understand. Following one virus passage in embryonated eggs and two further passages in MDCK cells, we obtained two virus derivatives, E01EE (PB1 739E and PB2 627E) and E01GK (PB1 739G and PB2 627K), respectively. The pathogenicity of E01EE and E01GK was investigated using plaque assay, growth dynamic analysis and cell viability quantification in cells from different animal species. The impact of amino acid mutation on PB1 739 and PB2 627 on viral ribonucleoprotein (RNP) activity was also analyzed. Further mouse infection experiments were performed. The results showed that both E01EE and E01GK decreased cell relative viability of canine MDCK cells, human A549 cells and chicken DF1 cells. E01Gk caused greater cellular harm in MDCK and A549 cells and had significantly higher virus titers in all of the cells compared to E01EE. The PB2 627K but not PB1 739G was the critical mutation that influenced the viral RNP activity. Both E01EE and E01GK caused mice pneumonia and considerable virus shedding, especially E01GK. This report verifies PB2 E627K mutation in virulence and spotlights the potential for the dog H6N1 virus to extend interspecies transmission.
    MeSH term(s) Animals ; Cell Culture Techniques ; Dog Diseases/virology ; Dogs ; Humans ; Influenza A virus/genetics ; Influenza A virus/growth & development ; Influenza A virus/physiology ; Madin Darby Canine Kidney Cells ; Mice ; Mice, Inbred BALB C ; Mutation ; Orthomyxoviridae Infections/veterinary ; Orthomyxoviridae Infections/virology ; Taiwan ; Virus Replication
    Language English
    Publishing date 2020-06-30
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v12070704
    Database MEDical Literature Analysis and Retrieval System OnLINE

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