LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Your last searches

  1. AU="Zhang, Peiqing"
  2. AU="Kinsley, Marc"

Search results

Result 1 - 10 of total 80

Search options

  1. Article ; Online: High-efficiency and broadband tunable Raman fiber laser in a chalcogenide fiber based on the Fresnel reflection.

    Yang, Lingling / Wang, Yingying / Wu, Duanduan / Zhang, Peiqing / Zhang, Lei / Liao, Zhaolong / Dai, Shixun

    Optics letters

    2024  Volume 49, Issue 9, Page(s) 2509–2512

    Abstract: A high-efficiency and broadband tunable chalcogenide fiber Raman laser with the Fabry-Perot (F-P) cavity formed by the Fresnel reflection was established. A maximum average power slope efficiency of around ... ...

    Abstract A high-efficiency and broadband tunable chalcogenide fiber Raman laser with the Fabry-Perot (F-P) cavity formed by the Fresnel reflection was established. A maximum average power slope efficiency of around 43
    Language English
    Publishing date 2024-05-01
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4794
    ISSN (online) 1539-4794
    DOI 10.1364/OL.521472
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Effectiveness of Er:YAG Laser Combined with Photobiomodulation on Periodontitis Based on 3-month Observation.

    Yang, Bin / Li, Huifen / Zhang, Peiqing / Wang, Binpin

    Oral health & preventive dentistry

    2022  Volume 20, Issue 1, Page(s) 193–198

    Abstract: Purpose: The effectiveness of using different laser therapy strategies in adjunct to scaling and root planing (SRP) for treatment of periodontitis remains unclear. This study compared the treatment outcome of SRP and its combination with Er:YAG laser ... ...

    Abstract Purpose: The effectiveness of using different laser therapy strategies in adjunct to scaling and root planing (SRP) for treatment of periodontitis remains unclear. This study compared the treatment outcome of SRP and its combination with Er:YAG laser and/or photobiomodulation on patients with severe periodontitis.
    Materials and methods: A total of 50 patients were included, whose teeth were divided into 4 quadrants: 1. SRP+Er:YAG laser irradiation+photobiomodulation treatment; 2. SRP+Er:YAG laser irradiation treatment; 3. SRP+photobiomodulation treatment; 4. SRP treatment only. An Er:YAG laser at powers of 50 or 40 mJ and an Nd:YAG laser at 50 mJ were used. Patients were followed-up for 3 months. Periodontal clinical parameters (probing depth [PD], clinical attachment level [CAL], plaque index [PLI] and bleeding index [BI]), inflammation factors (melatonin and MMP-8 levels) and pain intensity were compared among the 4 quadrants.
    Results: The quadrant treated by SRP combined with Er:YAG laser irradiation and photobiomodulation had statistically significantly lower PD? (p = 0.0081 at 1 month; p < 0.0001 at 3 months), CAL? (p = 0.003), PLI ?(p = 0.0011) and BI levels ?(p = 0.005 at 1 month; p = 0.0236 at 3 months) compared with the other 3 quadrants. In addition, melatonin ?(p = 0.0006 at 1 month; p = 0.0002 at 3 months) and MMP-8 levels ?(p = 0.0012; only at 1 month) were also statistically significantly higher.
    Conclusion: Of the treatments tested here, SRP combined with Er:YAG laser irradiation and photobiomodulation had the best short-term outcome for severe periodontitis.
    MeSH term(s) Humans ; Lasers, Solid-State/therapeutic use ; Matrix Metalloproteinase 8 ; Melatonin ; Periodontitis/radiotherapy ; Root Planing
    Chemical Substances Matrix Metalloproteinase 8 (EC 3.4.24.34) ; Melatonin (JL5DK93RCL)
    Language English
    Publishing date 2022-04-15
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2136786-3
    ISSN 1757-9996 ; 1602-1622
    ISSN (online) 1757-9996
    ISSN 1602-1622
    DOI 10.3290/j.ohpd.b2960543
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: PD-1/PD-L1 inhibitors as a hope for smokers of non-small cell lung cancer patient.

    Yu, Zhuo / Zhang, Peiqing / Gu, Weikuan / Jiang, Xicheng

    Translational cancer research

    2022  Volume 8, Issue 8, Page(s) 2941–2943

    Language English
    Publishing date 2022-01-15
    Publishing country China
    Document type Journal Article
    ZDB-ID 2901601-0
    ISSN 2219-6803 ; 2218-676X
    ISSN (online) 2219-6803
    ISSN 2218-676X
    DOI 10.21037/tcr.2019.12.22
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article: Efficacy and Safety of Glycosides of Tripterygium wilfordii Combined with Renin-Angiotensin System in the Treatment of IgA Nephropathy: A Systematic Review and Meta-Analysis.

    Chen, Ming / Zhang, Peiqing / Li, Lianhua / Yu, Zhuo / Liu, Na / Wang, Lifan

    publication RETRACTED

    Emergency medicine international

    2022  Volume 2022, Page(s) 5314105

    Abstract: Background: IgA nephropathy (IgAN) is currently the most common primary glomerular disease, accounting for approximately 36.7% to 58.2% of primary glomerular disease in kidney biopsies in China. Definitive diagnosis depends on immunopathological ... ...

    Abstract Background: IgA nephropathy (IgAN) is currently the most common primary glomerular disease, accounting for approximately 36.7% to 58.2% of primary glomerular disease in kidney biopsies in China. Definitive diagnosis depends on immunopathological examination of the kidney. The prognosis of this disease was generally considered to be good, but recent studies have found that about half of patients can progress to end-stage renal disease within 30 years of onset. Because the pathogenesis is unknown, there is no specific treatment.
    Objective: To evaluate the efficacy and safety of glycosides of Tripterygium wilfordii (GTW) in combination with renin-angiotensin system (RAS) inhibitors for the treatment of IgAN.
    Methods: Search Embase, Pubmed, Cochrane, CNKI, Web of Science, Wanfang, and VIP for all randomized controlled trials (RCTs) on treating IgAN with RASI from the self-built database to December 2021. Relevant data were searched and collected separately by two reviewers. The Cochrane risk of bias model was used for quality assessment, and RevMan 5.3 was used for data analysis.
    Results: Thirteen Chinese publications with a total of 958 patients were finally included. There was no statistically significant difference in baseline information (including laboratory data and clinical parameters) between the two groups of patients. The urine protein quantification in both groups showed a significant decreasing trend as the treatment duration increased. At 3, 6, 9, and 12 months after treatment, urine protein was significantly lower than the baseline value in both the observation and control groups (
    Conclusion: GTW combined with RASI is one of the safe and effective treatment modes for IgAN nephropathy. It can not only effectively reduce the excretion of urinary protein in patients and delay the progression of chronic kidney disease but also has less serious side effects and is well tolerated by patients, so it can be a new choice of therapeutic drugs for this group of patients.
    Language English
    Publishing date 2022-09-30
    Publishing country Egypt
    Document type Journal Article ; Retracted Publication
    ZDB-ID 2596429-X
    ISSN 2090-2859 ; 2090-2840
    ISSN (online) 2090-2859
    ISSN 2090-2840
    DOI 10.1155/2022/5314105
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: High Q-factor, ultrasensitivity slot microring resonator sensor based on chalcogenide glasses: erratum.

    Zhang, Xuelei / Zhou, Chenfeng / Luo, Ye / Yang, Zhen / Zhang, Wei / Li, Lan / Xu, Peipeng / Zhang, Peiqing / Xu, Tiefeng

    Optics express

    2023  Volume 31, Issue 20, Page(s) 33401–33402

    Abstract: We correct the error in [Opt. Express30, 3866 (2022)10.1364/OE.450092], Fig. 6(c). The unit of the vertical axis in the figure should be arbitrary units, not dB. All the conclusions are unchanged after the correction. ...

    Abstract We correct the error in [Opt. Express30, 3866 (2022)10.1364/OE.450092], Fig. 6(c). The unit of the vertical axis in the figure should be arbitrary units, not dB. All the conclusions are unchanged after the correction.
    Language English
    Publishing date 2023-10-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.504612
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Advances in the pharmacological study of Chinese herbal medicine to alleviate diabetic nephropathy by improving mitochondrial oxidative stress.

    Chen, Ming / Chen, Yao / Zhu, Wenhui / Yan, Xiaoming / Xiao, Jing / Zhang, Peiqing / Liu, Peng / Li, Ping

    Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie

    2023  Volume 165, Page(s) 115088

    Abstract: Diabetic nephropathy (DN) is one of the serious complications of diabetes mellitus, primarily arising from type 2 diabetes (T2DM), and can progress to chronic kidney disease (CKD) and end stage renal disease (ESRD). The pathogenesis of DN involves ... ...

    Abstract Diabetic nephropathy (DN) is one of the serious complications of diabetes mellitus, primarily arising from type 2 diabetes (T2DM), and can progress to chronic kidney disease (CKD) and end stage renal disease (ESRD). The pathogenesis of DN involves various factors such as hemodynamic changes, oxidative stress, inflammatory response, and lipid metabolism disorders. Increasing attention is being given to DN caused by oxidative stress in the mitochondrial pathway, prompting researchers to explore drugs that can regulate these target pathways. Chinese herbal medicine, known for its accessibility, rich historical usage, and remarkable efficacy, has shown promise in ameliorating renal injury caused by DN by modulating oxidative stress in the mitochondrial pathway. This review aims to provide a reference for the prevention and treatment of DN. Firstly, we outline the mechanisms by which mitochondrial dysfunction impairs DN, focusing on outlining the damage to mitochondria by oxidative stress. Subsequently, we describe the process by which formulas, herbs and monomeric compounds protect the kidney by ameliorating oxidative stress in the mitochondrial pathway. Finally, the rich variety of Chinese herbal medicine, combined with modern extraction techniques, has great potential, and as we gradually understand the pathogenesis of DN and research techniques are constantly updated, there will be more and more promising therapeutic targets and herbal drug candidates. This paper aims to provide a reference for the prevention and treatment of DN.
    MeSH term(s) Humans ; Diabetic Nephropathies/metabolism ; Drugs, Chinese Herbal/pharmacology ; Drugs, Chinese Herbal/therapeutic use ; Drugs, Chinese Herbal/metabolism ; Diabetes Mellitus, Type 2/drug therapy ; Kidney ; Oxidative Stress
    Chemical Substances Drugs, Chinese Herbal
    Language English
    Publishing date 2023-07-04
    Publishing country France
    Document type Journal Article ; Review
    ZDB-ID 392415-4
    ISSN 1950-6007 ; 0753-3322 ; 0300-0893
    ISSN (online) 1950-6007
    ISSN 0753-3322 ; 0300-0893
    DOI 10.1016/j.biopha.2023.115088
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Fiber Optic SERS Sensor with Silver Nanocubes Attached Based on Evanescent Wave for Detecting Pesticide Residues.

    Tao, Pan / Ge, Kaixin / Dai, Xing / Xue, Danni / Luo, Yang / Dai, Shixun / Xu, Tiefeng / Jiang, Tao / Zhang, Peiqing

    ACS applied materials & interfaces

    2023  Volume 15, Issue 25, Page(s) 30998–31008

    Abstract: Surface-enhanced Raman scattering (SERS) has great potential in the field of rapid detection of pesticide residues in food. In this paper, a fiber optic SERS sensor excited by evanescent waves was proposed for efficient detection of thiram. Silver ... ...

    Abstract Surface-enhanced Raman scattering (SERS) has great potential in the field of rapid detection of pesticide residues in food. In this paper, a fiber optic SERS sensor excited by evanescent waves was proposed for efficient detection of thiram. Silver nanocubes (Ag NCs) were prepared as SERS active substrates, which had much stronger electromagnetic field intensity than nanospheres under laser excitation due to much more "hot spots". By using the method of electrostatic adsorption and laser induction, Ag NCs were uniformly assembled at the fiber taper waist (FTW) for enhancing the Raman signal. Different from the traditional way of stimulation, evanescent wave excitation greatly increased the interaction area between the excitation and analyte, while reducing the damage of the excited light to the metal nanostructures. The methods proposed in this work have been successfully used to detect the pesticide residues of thiram and showed good detection performance. The detection limits for 4-Mercaptobenzoic acid (4-MBA) and thiram were determined to be 10
    Language English
    Publishing date 2023-06-16
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.3c04059
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Comparative study on different pretreatment on enzymatic hydrolysis of corncob residues

    Liu, Wei / Wu, Ruijie / Wang, Bing / Hu, Yingying / Hou, Qingxi / Zhang, Peiqing / Wu, Rina

    Bioresource technology. 2020 Jan., v. 295

    2020  

    Abstract: Under the situation of increasingly severe challenge of energy consumption, it is of great importance to make full use of bioresources such as forestry and agricultural residues. Herein, the corncob residues generated after processing corncob were ... ...

    Abstract Under the situation of increasingly severe challenge of energy consumption, it is of great importance to make full use of bioresources such as forestry and agricultural residues. Herein, the corncob residues generated after processing corncob were enzymatically hydrolyzed to yield fermentable sugars. To overcome the recalcitrance of corncob residues, three kinds of pretreatment methods, i.e., sulfonation, PFI refining, and wet grinding, were applied; their effects on enzymatic hydrolysis and main characteristics of corncob residues substrate were investigated. The results showed that the enzymatic digestibility of the substrate was greatly enhanced by employing each method. The wet grinding exhibited obvious advantages, e.g., the conversion yield of cellulose to glucose and glucose concentration reached 96.7% and 32.2 g/L after 59 h of enzymatic hydrolysis, respectively. The improvement in enzymatic hydrolysis was mainly attributed to the altered characteristics of the substrate such as swelling ability, specific surface area, and particle size and distribution.
    Keywords agricultural wastes ; cellulose ; comparative study ; corn cobs ; energy ; enzymatic hydrolysis ; forestry ; glucose ; grinding ; particle size ; refining ; surface area
    Language English
    Dates of publication 2020-01
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 1065195-0
    ISSN 1873-2976 ; 0960-8524
    ISSN (online) 1873-2976
    ISSN 0960-8524
    DOI 10.1016/j.biortech.2019.122244
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  9. Article ; Online: High Q-factor, ultrasensitivity slot microring resonator sensor based on chalcogenide glasses.

    Zhang, Xuelei / Zhou, Chenfeng / Luo, Ye / Yang, Zhen / Zhang, Wei / Li, Lan / Xu, Peipeng / Zhang, Peiqing / Xu, Tiefeng

    Optics express

    2022  Volume 30, Issue 3, Page(s) 3866–3875

    Abstract: In this article, the chalcogenide slot waveguide is theoretically studied, and the highest power confinement factors of the slot region and the cladding region are obtained to be 36.3% and 56.7%, respectively. A high-sensitivity chalcogenide slot ... ...

    Abstract In this article, the chalcogenide slot waveguide is theoretically studied, and the highest power confinement factors of the slot region and the cladding region are obtained to be 36.3% and 56.7%, respectively. A high-sensitivity chalcogenide slot microring resonator sensor is designed and fabricated by electron-beam lithography and dry etching. The structure increases the sensitivity of the sensor compared with the conventional evanescent field waveguide sensor. The cavity has achieved a quality factor of 1 × 10
    Language English
    Publishing date 2022-02-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.450092
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Rapid and sensitive detection of Staphylococcus aureus by using a long-period fiber grating immunosensor coated with egg yolk antibody

    Gan, Wenbo / Xu, Zhenli / Li, Yaowei / Bi, Wenchao / Chu, Luoyao / Qi, Qianyu / Yang, Yitao / Zhang, Peiqing / Gan, Ning / Dai, Shixun / Xu, Tiefeng

    Biosensors & bioelectronics. 2022 Mar. 01, v. 199

    2022  

    Abstract: The rapid and reliable detection of bacteria plays an important role in clinical and veterinary practice. A stable, label free, compact, and sensitive long-period fiber grating (LPFG) sensor based on egg yolk antibody (IgY) was proposed for the detection ...

    Abstract The rapid and reliable detection of bacteria plays an important role in clinical and veterinary practice. A stable, label free, compact, and sensitive long-period fiber grating (LPFG) sensor based on egg yolk antibody (IgY) was proposed for the detection of Staphylococcus aureus (S. aureus). LPFG was fabricated with laser writing technology, and specific IgY was further immobilized on the grating region and then combined with the corresponding bacteria. S. aureus was detected by tracking the change of resonance wavelength in the LPFG transmission spectrum caused by bacteria–antibody interaction induced by the increase of biological cover thickness and density after the immune reaction. The testing results showed that the proposed sensor was selective and sensitive to S. aureus measurement, and the detection limit is approximately 33 CFU/ml. The proposed antibody immobilization method is very simple, and the optical fiber can be manufactured in batch to reduce the cost. The detection time of the sensor is around 20 min, which is fast and suitable for detection. The assay was successfully applied for the quantitative analysis of S. aureus in natural waters and met the needs of on-site screening trace pathogenic bacteria in food safety control.
    Keywords Staphylococcus aureus ; antibodies ; detection limit ; egg yolk ; food safety ; immune response ; immunosensors ; optical fibers ; quantitative analysis ; veterinary clinics ; wavelengths
    Language English
    Dates of publication 2022-0301
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 1011023-9
    ISSN 1873-4235 ; 0956-5663
    ISSN (online) 1873-4235
    ISSN 0956-5663
    DOI 10.1016/j.bios.2021.113860
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

To top