LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 330

Search options

  1. Article: Pulmonary artery anastomosis during lung transplantation: a novel technique.

    Liu, Mengyang / Peng, Guilin / Yang, Chao / He, Jianxing / Xu, Xin

    Journal of thoracic disease

    2024  Volume 16, Issue 1, Page(s) 768–772

    Abstract: Pulmonary artery anastomosis (PAA) is a critical step in lung transplantation. The conventional approach involves end-to-end anastomosis, which can lead to arterial tortuosity, oozing, stenosis, and thrombosis. Here, we present a modified PAA technique ... ...

    Abstract Pulmonary artery anastomosis (PAA) is a critical step in lung transplantation. The conventional approach involves end-to-end anastomosis, which can lead to arterial tortuosity, oozing, stenosis, and thrombosis. Here, we present a modified PAA technique for lung transplantation. The anesthesia protocol and the incision for lung transplantation adhere to standard lung transplantation protocols. The primary innovation is the enhanced pulmonary anastomosis technique. The donor and recipient artery stumps are adjusted to restore their natural anatomical alignment. The donor-recipient stump is everted, ensuring precise alignment of the intima of the donor and recipient arteries. Both ends of the anastomosis are secured using 5-0 Prolene sutures to ensure stability and traction, followed by continuous suturing. In this study, seven patients underwent PAA using this novel technique. Notably, no bleeding was observed upon unveiling and deaerating the anastomosis, eliminating the need for additional sutures. Furthermore, no pulmonary artery torsion or significant prolongation of the anastomotic procedure was observed. Postoperative computed tomography of the chest revealed no anastomotic stenosis or mural thrombosis. This novel cuff anastomosis technique can reduce the risk of thrombosis and prevent torsion and stenosis in the reconstructed artery.
    Language English
    Publishing date 2024-01-05
    Publishing country China
    Document type Journal Article
    ZDB-ID 2573571-8
    ISSN 2077-6624 ; 2072-1439
    ISSN (online) 2077-6624
    ISSN 2072-1439
    DOI 10.21037/jtd-23-1147
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Letter to the Editor: Loss of hepatic DRP1 exacerbates alcoholic hepatitis by inducing megamitochondria and mitochondrial maladaptation.

    Hu, Xinyi / Shen, Jiayan / Wang, Tao / Liu, Mengyang

    Hepatology (Baltimore, Md.)

    2023  Volume 78, Issue 4, Page(s) E80–E81

    MeSH term(s) Humans ; Hepatitis, Alcoholic ; Mitochondrial Swelling ; Mitochondria ; GTP Phosphohydrolases ; Mitochondrial Dynamics ; Mitochondrial Proteins
    Chemical Substances GTP Phosphohydrolases (EC 3.6.1.-) ; Mitochondrial Proteins
    Language English
    Publishing date 2023-07-21
    Publishing country United States
    Document type Letter ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 604603-4
    ISSN 1527-3350 ; 0270-9139
    ISSN (online) 1527-3350
    ISSN 0270-9139
    DOI 10.1097/HEP.0000000000000540
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Letter to the Editor: Alcohol-induced extracellular ASC specks perpetuate liver inflammation and damage in alcohol-associated hepatitis even after alcohol cessation.

    Shen, Jiayan / Zhang, Kaiyue / Liu, Mengyang / Wang, Tao

    Hepatology (Baltimore, Md.)

    2023  Volume 79, Issue 2, Page(s) E26–E27

    MeSH term(s) Humans ; Ethanol/adverse effects ; CARD Signaling Adaptor Proteins/metabolism ; Hepatitis ; Inflammation ; Inflammasomes/metabolism
    Chemical Substances Ethanol (3K9958V90M) ; CARD Signaling Adaptor Proteins ; Inflammasomes
    Language English
    Publishing date 2023-11-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 604603-4
    ISSN 1527-3350 ; 0270-9139
    ISSN (online) 1527-3350
    ISSN 0270-9139
    DOI 10.1097/HEP.0000000000000682
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Transcranial ultrasound stimulation selectively affects cortical neurovascular coupling across neuronal types and LFP frequency bands.

    Su, Zhaocheng / Liu, Mengyang / Yuan, Yi / Jiao, Honglei

    Cerebral cortex (New York, N.Y. : 1991)

    2023  Volume 34, Issue 1

    Abstract: Previous studies have affirmed that transcranial ultrasound stimulation (TUS) can influence cortical neurovascular coupling across low-frequency (0-2 Hz)/high-frequency (160-200 Hz) neural oscillations and hemodynamics. Nevertheless, the selectivity of ... ...

    Abstract Previous studies have affirmed that transcranial ultrasound stimulation (TUS) can influence cortical neurovascular coupling across low-frequency (0-2 Hz)/high-frequency (160-200 Hz) neural oscillations and hemodynamics. Nevertheless, the selectivity of this coupling triggered by transcranial ultrasound stimulation for spike activity (> 300 Hz) and additional frequency bands (4-150 Hz) remains elusive. We applied transcranial ultrasound stimulation to mice visual cortex while simultaneously recording total hemoglobin concentration, spike activity, and local field potentials. Our findings include (1) a significant increase in coupling strength between spike firing rates of putative inhibitory neurons/putative excitatory neurons and total hemoglobin concentration post-transcranial ultrasound stimulation; (2) an ~ 2.1-fold higher Pearson correlation coefficient between putative inhibitory neurons and total hemoglobin concentration compared with putative excitatory neurons and total hemoglobin concentration (*P < 0.05); (3) a notably greater cross-correlation between putative inhibitory neurons and total hemoglobin concentration than that between putative excitatory neurons and total hemoglobin concentration (*P < 0.05); (4) an enhancement of Pearson correlation coefficient between the relative power of γ frequency band (30-80 Hz), hγ frequency band (80-150 Hz) and total hemoglobin concentration following transcranial ultrasound stimulation (*P < 0.05); and (5) strongest cross-correlation observed at negative delay for θ frequency band, and positive delay for α, β, γ, hγ frequency bands. Collectively, these results demonstrate that cortical neurovascular coupling evoked by transcranial ultrasound stimulation exhibits selectivity concerning neuronal types and local field potential frequency bands.
    MeSH term(s) Mice ; Animals ; Action Potentials/physiology ; Neurovascular Coupling ; Neurons/physiology ; Hemoglobins
    Chemical Substances Hemoglobins
    Language English
    Publishing date 2023-12-02
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1077450-6
    ISSN 1460-2199 ; 1047-3211
    ISSN (online) 1460-2199
    ISSN 1047-3211
    DOI 10.1093/cercor/bhad465
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Transcranial Ultrasound Stimulation Improves Memory Performance of Parkinsonian Mice.

    Zhao, Zhe / Ji, Hui / Pei, Jiamin / Yan, Jiaqing / Zhang, Xiangjian / Yuan, Yi / Liu, Mengyang

    IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society

    2024  Volume 32, Page(s) 1284–1291

    Abstract: Cognitive impairment is one of the most common non-motor symptoms of Parkinson's disease (PD). Previous studies have demonstrated that low-intensity transcranial ultrasound stimulation can significantly suppress the motor symptoms of PD. However, whether ...

    Abstract Cognitive impairment is one of the most common non-motor symptoms of Parkinson's disease (PD). Previous studies have demonstrated that low-intensity transcranial ultrasound stimulation can significantly suppress the motor symptoms of PD. However, whether ultrasound stimulation can improve cognitive ability in PD and the related neural oscillation mechanism remain unclear to date. To evaluate the effect of ultrasound stimulation on memory ability in PD and explore its neural oscillation mechanism. Ultrasonography was used for 7-day stimulation of the CA1 in transgenic mice with PD. The working memory ability of the PD mice was then tested using novel object discrimination, and the local field potential and spikes in the mice CA1 were recorded at the same time as in the behavioral test. We found that ultrasound stimulation of the PD mice CA1 for 4 days: 1) significantly increased their learning and memory ability, although the learning and memory ability on the 7th day after the stimulation stopped was not significantly different from that before stimulation (P>0.05); 2) significantly increased the relative power of theta, low gamma, and high gamma frequency bands of the local field potential, and the phase amplitude coupling strength between theta and low gamma and between theta and high gamma; and 3) modulated the phase-locking angle between the spike of interneuron and theta wave to a 180°-360° rise cycle. Transcranial ultrasound stimulation can improve the learning and memory abilities of PD mice, and evoking neural oscillations in the CA1 is the potential mechanism.
    MeSH term(s) Mice ; Animals ; Memory, Short-Term/physiology ; Cognition ; Parkinson Disease ; Ultrasonography
    Language English
    Publishing date 2024-03-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1166307-8
    ISSN 1558-0210 ; 1063-6528 ; 1534-4320
    ISSN (online) 1558-0210
    ISSN 1063-6528 ; 1534-4320
    DOI 10.1109/TNSRE.2024.3378109
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: Cellular Uptake and Transport Mechanism Investigations of PEGylated Niosomes for Improving the Oral Delivery of Thymopentin.

    Liu, Mengyang / Svirskis, Darren / Proft, Thomas / Loh, Jacelyn / Huang, Yuan / Wen, Jingyuan

    Pharmaceutics

    2024  Volume 16, Issue 3

    Abstract: Background: Although its immunomodulatory properties make thymopentin (TP5) appealing, its rapid metabolism and inactivation in the digestive system pose significant challenges for global scientists. PEGylated niosomal nanocarriers are hypothesized to ... ...

    Abstract Background: Although its immunomodulatory properties make thymopentin (TP5) appealing, its rapid metabolism and inactivation in the digestive system pose significant challenges for global scientists. PEGylated niosomal nanocarriers are hypothesized to improve the physicochemical stability of TP5, and to enhance its intestinal permeability for oral administration.
    Methods: TP5-loaded PEGylated niosomes were fabricated using the thin film hydration method. Co-cultured Caco-2 and HT29 cells with different ratios were screened as in vitro intestinal models. The cytotoxicity of TP5 and its formulations were evaluated using an MTT assay. The cellular uptake and transport studies were investigated in the absence or presence of variable inhibitors or enhancers, and their mechanisms were explored.
    Results and discussion: All TP5 solutions and their niosomal formulations were nontoxic to Caco-2 and HT-29 cells. The uptake of TP5-PEG-niosomes by cells relied on active endocytosis, exhibiting dependence on time, energy, and concentration, which has the potential to significantly enhance its cellular uptake compared to TP5 in solution. Nevertheless, cellular transport rates were similar between TP5 in solution and its niosomal groups. The cellular transport of TP5 in solution was carried out mainly through MRP5 endocytosis and a passive pathway and effluxed by MRP5 transporters, while that of TP5-niosomes and TP5-PEG-niosomes was carried out through adsorptive- and clathrin-mediated endocytosis requiring energy. The permeability and transport rate was further enhanced when EDTA and sodium taurocholate were used as the penetration enhancers.
    Conclusions: This research has illustrated that PEG-niosomes were able to enhance the cellular uptake and maintain the cellular transport of TP5. This study also shows this formulation's potential to serve as an effective carrier for improving the oral delivery of peptides.
    Language English
    Publishing date 2024-03-14
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527217-2
    ISSN 1999-4923
    ISSN 1999-4923
    DOI 10.3390/pharmaceutics16030397
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: COVID-19 infection in a lung transplant recipient.

    Zeng, Yuan / Peng, Guilin / Yang, Chao / Liu, Mengyang / He, Jianxing / Xu, Xin

    Journal of thoracic disease

    2024  Volume 16, Issue 4, Page(s) 2702–2703

    Language English
    Publishing date 2024-04-12
    Publishing country China
    Document type Case Reports
    ZDB-ID 2573571-8
    ISSN 2077-6624 ; 2072-1439
    ISSN (online) 2077-6624
    ISSN 2072-1439
    DOI 10.21037/jtd-23-1869
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Production optimization of food functional factor ergothioneine in wild-type red yeast Rhodotorula mucilaginosa DL-X01.

    Xiong, Kexin / Guo, Hui / Xue, Siyu / Liu, Mengyang / Dai, Yiwei / Lin, Xinping / Zhang, Sufang

    Journal of the science of food and agriculture

    2024  Volume 104, Issue 7, Page(s) 4050–4057

    Abstract: Background: Ergothioneine (EGT) is a high-value food functional factor that cannot be synthesized by humans and other vertebrates, and the low yield limits its application.: Results: In this study, the optimal fermentation temperature, fermentation ... ...

    Abstract Background: Ergothioneine (EGT) is a high-value food functional factor that cannot be synthesized by humans and other vertebrates, and the low yield limits its application.
    Results: In this study, the optimal fermentation temperature, fermentation time, initial pH, inoculum age, and inoculation ratio on EGT biosynthesis of Rhodotorula mucilaginosa DL-X01 were optimized. In addition, the effects of three key precursor substances - histidine, methionine, and cysteine - on fungal EGT synthesis were verified. The optimal conditions were further obtained by response surface optimization. The EGT yield of R. mucilaginosa DL-X01 under optimal fermentation conditions reached 64.48 ± 2.30 mg L
    Conclusion: To the best of our knowledge, this is the highest EGT yield ever reported in non-recombinant strains. The fermentation strategy described in this study will promote the efficient biosynthesis of EGT in red yeast and its sustainable production in the food industry. © 2024 Society of Chemical Industry.
    MeSH term(s) Humans ; Animals ; Ergothioneine ; Rhodotorula/genetics ; Rhodotorula/metabolism ; Antioxidants/metabolism ; Histidine ; Fermentation ; Monascus/metabolism
    Chemical Substances Ergothioneine (BDZ3DQM98W) ; Antioxidants ; Histidine (4QD397987E)
    Language English
    Publishing date 2024-02-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 184116-6
    ISSN 1097-0010 ; 0022-5142
    ISSN (online) 1097-0010
    ISSN 0022-5142
    DOI 10.1002/jsfa.13287
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Evaluation of the effectiveness of using prednisolone, tacrolimus, and intravenous immunoglobulin combination therapy on immune-mediated necrotizing myopathy-A non-randomized, observational research.

    Liu, Mengyang / Liu, Jiaqi / Li, Ke / Qiao, Lingya / Chen, Juan / Lin, Ying / Shi, Qiang

    International journal of rheumatic diseases

    2024  Volume 27, Issue 3, Page(s) e15124

    Abstract: Objective: To recruit immune-mediated necrotizing myopathy (IMNM) patients with extramuscular manifestations who were refractory to initial therapy with either monotherapy with prednisolone or dual therapy with prednisolone and immunosuppressants. These ...

    Abstract Objective: To recruit immune-mediated necrotizing myopathy (IMNM) patients with extramuscular manifestations who were refractory to initial therapy with either monotherapy with prednisolone or dual therapy with prednisolone and immunosuppressants. These patients subsequently received a combination of prednisolone, tacrolimus, and intravenous immunoglobulin (IVIG), and the efficacy of this treatment regimen was assessed in patients with IMNM.
    Method: ①Clinical data and treatment measures are as follows: This study enrolled IMNM patients who were treated at the Neurology Department of the First Medical Center of PLA General Hospital from April 2020 to May 2023. These patients received a combination therapy of prednisolone, tacrolimus, and IVIG. ②Observational indicators included manual muscle test for 8 groups of muscles (MMT-8), muscle enzyme levels (creatine kinase (CK), lactate dehydrogenase (LDH), alanine aminotransferase (ALT), aspartate aminotransferase (AST)), and myositis disease activity assessment tool (MDAAT).
    Results: This study enrolled eight patients. All observational indicators declined after treatment compared to before treatment, and these changes were statistically significant. Moreover, extramuscular manifestations also ameliorated compared to before treatment.
    Conclusion: The combination therapy of prednisolone, tacrolimus, and IVIG has demonstrated favorable efficacy in IMNM and broadened the treatment options for this disease. However, the results still require further validation by large-scale and randomized controlled studies.
    MeSH term(s) Humans ; Prednisolone/adverse effects ; Immunoglobulins, Intravenous/adverse effects ; Tacrolimus/adverse effects ; Myositis/diagnosis ; Myositis/drug therapy ; Autoimmune Diseases/drug therapy ; Autoantibodies ; Muscle, Skeletal
    Chemical Substances Prednisolone (9PHQ9Y1OLM) ; Immunoglobulins, Intravenous ; Tacrolimus (WM0HAQ4WNM) ; Autoantibodies
    Language English
    Publishing date 2024-03-21
    Publishing country England
    Document type Journal Article
    ZDB-ID 2426924-4
    ISSN 1756-185X ; 1756-1841
    ISSN (online) 1756-185X
    ISSN 1756-1841
    DOI 10.1111/1756-185X.15124
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: A novel quantitative method to evaluate lumbar disc degeneration: MRI histogram analysis.

    Li, Zhaohui / Wu, Yurui / Liu, Mengyang / Miao, Dazhuang / Zhang, Di / Ding, Wenyuan

    European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society

    2024  

    Abstract: Purpose: This study aimed to use MRI histogram analysis to routine MRI sequences to evaluate lumbar disc degeneration (LDD), illustrate the correlation between this novel method and the traditional Pfirrmann classification method, and more importantly, ... ...

    Abstract Purpose: This study aimed to use MRI histogram analysis to routine MRI sequences to evaluate lumbar disc degeneration (LDD), illustrate the correlation between this novel method and the traditional Pfirrmann classification method, and more importantly, perform comprehensive agreement analysis of MRI histogram analysis in various situations to evaluate its objectivity and stability.
    Methods: Lumbar MRI images from 133 subjects were included in this study. LDD was classified into grades by Pfirrmann classification and was measured as peak separation value by MRI histogram analysis. Correlation analysis between the two methods was performed and cutoff values were determined. In addition, the agreement analysis of peak separation value was performed by intraclass correlation coefficient (ICC) in four scenarios, including inter-resolution, inter-observer, inter-regions of interest (ROI) and inter-slice.
    Results: Peak separation values were strongly correlated with Pfirrmann grades (r = - 0.847). The inter-resolution agreements of peak separation value between original image resolution of 2304 × 2304 and compressed image resolutions (1152 × 1152, 576 × 576, 288 × 288) were good to excellent (ICCs were 0.916, 0.876 and 0.822), except 144 × 144 was moderate (ICC = 533). The agreements of inter-observer (ICC = 0.982) and inter-ROI (ICC = 0.915) were excellent. Compared with the mid-sagittal slice, the inter-slice agreements were good for the first adjacent slices (ICCs were 0.826 and 0.844), and moderate to good for the second adjacent slices (ICC = 0.733 and 0.753).
    Conclusion: MRI histogram analysis, used in routine MRI sequences, demonstrated a strong correlation with Pfirrmann classification and good agreements in various scenarios, expanding the range of application and providing an effective, objective and quantitative tool to evaluate LDD.
    Language English
    Publishing date 2024-05-05
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1115375-1
    ISSN 1432-0932 ; 0940-6719
    ISSN (online) 1432-0932
    ISSN 0940-6719
    DOI 10.1007/s00586-024-08279-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top