1.Explore of nanopore sequencing technology in ambiguities of HLA genotyping
Nanying CHEN ; Wei ZHANG ; Lina DONG ; Fang WANG ; Yizhen HE ; Chen CHEN ; Faming ZHU
Chinese Journal of Blood Transfusion 2025;38(3):309-315
[Objective] To resolve the ambiguities of HLA genotyping generated by next generation sequencing (NGS) using nanopore sequencing technology. [Methods] A total of 38 samples with ambiguous HLA genotyping by NGS in our laboratory were collected, and HLA-A, -B, -C, -DRB1, -DRB3/4/5, -DQA1, -DQB1, -DPA1 and -DPB1 loci in these samples were amplified using primers in the same commercial NGS HLA genotyping kit, then subjected to third-generation library construction, and sequenced on the nanopore sequencer. The sequencing data were converted into Fastq files and analyzed by software, and the genotypes of 11 HLA loci were obtained. The ambiguities were counted directly. [Results] The high-resolution genotyping at the second domain of 11 HLA loci of 38 samples using the third generation sequencing (TGS) were consistent with the results of the NGS method at a rate of 100%. The genotypes for the HLA-A, -B, -C, -DRB3, -DRB4, -DQA1 and -DPA1 loci by TGS were all only one result, and the discrimination rate for ambiguities of the HLA-A, -B, -C, and -DQA1 loci (all caused by the difficulty in phasing due to the short NGS read length) was 100%. Among the HLA-DRB1, -DRB5, -DQB1 and -DPB1 loci, the discrimination rate of TGS for the ambiguities caused by non-amplification of exon 1 was 0% and by the short NGS read length was 100%. [Conclusion] Nanopore technology was used to identify the ambiguities of 11 HLA loci in this study, and the ambiguities caused by the short read length disadvantage of the NGS method could be solved effectively and the accuracy of HLA genotyping would be improved.
2.Effect of mild hypercapnia during the recovery period on the emergence time from total intravenous anesthesia: a randomized controlled trial
Lan LIU ; Xiangde CHEN ; Qingjuan CHEN ; Xiuyi LU ; Lili FANG ; Jinxuan REN ; Yue MING ; Dawei SUN ; Pei CHEN ; Weidong WU ; Lina YU
Korean Journal of Anesthesiology 2025;78(3):215-223
Background:
Intraoperative hypercapnia reduces the time to emergence from volatile anesthetics, but few clinical studies have explored the effect of hypercapnia on the emergence time from intravenous (IV) anesthesia. We investigated the effect of inducing mild hypercapnia during the recovery period on the emergence time after total IV anesthesia (TIVA).
Methods:
Adult patients undergoing transurethral lithotripsy under TIVA were randomly allocated to normocapnia group (end-tidal carbon dioxide [ETCO2] 35–40 mmHg) or mild hypercapnia group (ETCO2 50-55 mmHg) during the recovery period. The primary outcome was the extubation time. The spontaneous breathing-onset time, voluntary eye-opening time, and hemodynamic data were collected. Changes in the cerebral blood flow velocity in the middle cerebral artery were assessed using transcranial Doppler ultrasound.
Results:
In total, 164 patients completed the study. The extubation time was significantly shorter in the mild hypercapnia (13.9 ± 5.9 min, P = 0.024) than in the normocapnia group (16.3 ± 7.6 min). A similar reduction was observed in spontaneous breathing-onset time (P = 0.021) and voluntary eye-opening time (P = 0.008). Multiple linear regression analysis revealed that the adjusted ETCO2 level was a negative predictor of extubation time. Middle cerebral artery blood flow velocity was significantly increased after ETCO2 adjustment for mild hypercapnia, which rapidly returned to baseline, without any adverse reactions, within 20 min after extubation.
Conclusions
Mild hypercapnia during the recovery period significantly reduces the extubation time after TIVA. Increased ETCO2 levels can potentially enhance rapid recovery from IV anesthesia.
3.Effect of mild hypercapnia during the recovery period on the emergence time from total intravenous anesthesia: a randomized controlled trial
Lan LIU ; Xiangde CHEN ; Qingjuan CHEN ; Xiuyi LU ; Lili FANG ; Jinxuan REN ; Yue MING ; Dawei SUN ; Pei CHEN ; Weidong WU ; Lina YU
Korean Journal of Anesthesiology 2025;78(3):215-223
Background:
Intraoperative hypercapnia reduces the time to emergence from volatile anesthetics, but few clinical studies have explored the effect of hypercapnia on the emergence time from intravenous (IV) anesthesia. We investigated the effect of inducing mild hypercapnia during the recovery period on the emergence time after total IV anesthesia (TIVA).
Methods:
Adult patients undergoing transurethral lithotripsy under TIVA were randomly allocated to normocapnia group (end-tidal carbon dioxide [ETCO2] 35–40 mmHg) or mild hypercapnia group (ETCO2 50-55 mmHg) during the recovery period. The primary outcome was the extubation time. The spontaneous breathing-onset time, voluntary eye-opening time, and hemodynamic data were collected. Changes in the cerebral blood flow velocity in the middle cerebral artery were assessed using transcranial Doppler ultrasound.
Results:
In total, 164 patients completed the study. The extubation time was significantly shorter in the mild hypercapnia (13.9 ± 5.9 min, P = 0.024) than in the normocapnia group (16.3 ± 7.6 min). A similar reduction was observed in spontaneous breathing-onset time (P = 0.021) and voluntary eye-opening time (P = 0.008). Multiple linear regression analysis revealed that the adjusted ETCO2 level was a negative predictor of extubation time. Middle cerebral artery blood flow velocity was significantly increased after ETCO2 adjustment for mild hypercapnia, which rapidly returned to baseline, without any adverse reactions, within 20 min after extubation.
Conclusions
Mild hypercapnia during the recovery period significantly reduces the extubation time after TIVA. Increased ETCO2 levels can potentially enhance rapid recovery from IV anesthesia.
4.Effect of mild hypercapnia during the recovery period on the emergence time from total intravenous anesthesia: a randomized controlled trial
Lan LIU ; Xiangde CHEN ; Qingjuan CHEN ; Xiuyi LU ; Lili FANG ; Jinxuan REN ; Yue MING ; Dawei SUN ; Pei CHEN ; Weidong WU ; Lina YU
Korean Journal of Anesthesiology 2025;78(3):215-223
Background:
Intraoperative hypercapnia reduces the time to emergence from volatile anesthetics, but few clinical studies have explored the effect of hypercapnia on the emergence time from intravenous (IV) anesthesia. We investigated the effect of inducing mild hypercapnia during the recovery period on the emergence time after total IV anesthesia (TIVA).
Methods:
Adult patients undergoing transurethral lithotripsy under TIVA were randomly allocated to normocapnia group (end-tidal carbon dioxide [ETCO2] 35–40 mmHg) or mild hypercapnia group (ETCO2 50-55 mmHg) during the recovery period. The primary outcome was the extubation time. The spontaneous breathing-onset time, voluntary eye-opening time, and hemodynamic data were collected. Changes in the cerebral blood flow velocity in the middle cerebral artery were assessed using transcranial Doppler ultrasound.
Results:
In total, 164 patients completed the study. The extubation time was significantly shorter in the mild hypercapnia (13.9 ± 5.9 min, P = 0.024) than in the normocapnia group (16.3 ± 7.6 min). A similar reduction was observed in spontaneous breathing-onset time (P = 0.021) and voluntary eye-opening time (P = 0.008). Multiple linear regression analysis revealed that the adjusted ETCO2 level was a negative predictor of extubation time. Middle cerebral artery blood flow velocity was significantly increased after ETCO2 adjustment for mild hypercapnia, which rapidly returned to baseline, without any adverse reactions, within 20 min after extubation.
Conclusions
Mild hypercapnia during the recovery period significantly reduces the extubation time after TIVA. Increased ETCO2 levels can potentially enhance rapid recovery from IV anesthesia.
5.Effect of mild hypercapnia during the recovery period on the emergence time from total intravenous anesthesia: a randomized controlled trial
Lan LIU ; Xiangde CHEN ; Qingjuan CHEN ; Xiuyi LU ; Lili FANG ; Jinxuan REN ; Yue MING ; Dawei SUN ; Pei CHEN ; Weidong WU ; Lina YU
Korean Journal of Anesthesiology 2025;78(3):215-223
Background:
Intraoperative hypercapnia reduces the time to emergence from volatile anesthetics, but few clinical studies have explored the effect of hypercapnia on the emergence time from intravenous (IV) anesthesia. We investigated the effect of inducing mild hypercapnia during the recovery period on the emergence time after total IV anesthesia (TIVA).
Methods:
Adult patients undergoing transurethral lithotripsy under TIVA were randomly allocated to normocapnia group (end-tidal carbon dioxide [ETCO2] 35–40 mmHg) or mild hypercapnia group (ETCO2 50-55 mmHg) during the recovery period. The primary outcome was the extubation time. The spontaneous breathing-onset time, voluntary eye-opening time, and hemodynamic data were collected. Changes in the cerebral blood flow velocity in the middle cerebral artery were assessed using transcranial Doppler ultrasound.
Results:
In total, 164 patients completed the study. The extubation time was significantly shorter in the mild hypercapnia (13.9 ± 5.9 min, P = 0.024) than in the normocapnia group (16.3 ± 7.6 min). A similar reduction was observed in spontaneous breathing-onset time (P = 0.021) and voluntary eye-opening time (P = 0.008). Multiple linear regression analysis revealed that the adjusted ETCO2 level was a negative predictor of extubation time. Middle cerebral artery blood flow velocity was significantly increased after ETCO2 adjustment for mild hypercapnia, which rapidly returned to baseline, without any adverse reactions, within 20 min after extubation.
Conclusions
Mild hypercapnia during the recovery period significantly reduces the extubation time after TIVA. Increased ETCO2 levels can potentially enhance rapid recovery from IV anesthesia.
6.Reconsideraton of Stroke with Syndrome of Combined Blood Stasis and Toxin from the Perspective of Xiang Thinking
Yunfan ZHANG ; Di ZHAO ; Lina MIAO ; Hongxi LIU ; Jingjing WEI ; Xiao LIANG ; Liuding WANG ; Xueru ZHANG ; Yunmeng CHEN ; Yunling ZHANG
Journal of Traditional Chinese Medicine 2025;66(13):1305-1310
Xiang thinking is a cognitive approach that reflects the relationships between phenomena and their underlying principles by analyzing their external manifestations through methods such as analogy, reasoning, deduction, and symbolism. This article applied xiang thinking to analyze the etiology and pathogenesis of "wind, fire, phlegm, and blood stasis" in stroke, thereby exploring its impact on the principles of syndrome differentiation and treatment of this condition. Meanwhile, the article traced the construction process of xiang thinking, and interpreted the concept of "toxin pathogen" in traditional Chinese medicine from four perspectives, state, attribute, origin, and law. Furthermore, the relationship between the process of constructing xiang thinking and the origin of etiology, identification methods, pathogenesis evolution, and treatment strategies for stroke with syndrome of combined blood stasis and toxin was explored, so as to provide insights into research on the etiology and pathogenesis of stroke, as well as clinical diagnosis and treatment approaches.
7.Effect of aconite decoction on the activity and polarization of mouse RAW264.7 macrophages
Mingcong SHAO ; Hubo CHEN ; Yidan ZHANG ; Ziyan LI ; Lina WANG
Journal of Pharmaceutical Practice and Service 2025;43(7):329-334
Objective To investigate the effects of Aconite decoction (AD) on the viability and polarization of murine RAW264.7 macrophages induced by lipopolysaccharide (LPS) or interleukin-4 (IL-4). Methods Cytotoxicity of AD was assessed by the CCK-8 assay. RAW264.7 cells were polarized toward M1 phenotype by LPS or M2 phenotype by IL-4, followed by treatment with varying concentrations of AD. Macrophage polarization was analyzed by flow cytometry. Quantitative PCR was performed to measure mRNA expression of polarization-associated markers (IL-6, iNOS, Arg1, and Ym1). ELISA was used to quantify secreted cytokines (TNF-α and IL-10)in the supernatant. Results At non-toxic concentrations, IL-6 and iNOS mRNA levels in LPS-stimulated cells were significantly upregulated while Arg1 and Ym1 expression in IL-4-treated groups were downregulated by AD. Concurrently, TNF-α secretion in LPS-induced M1 polarization was enhanced but IL-10 production in IL-4-induced M2 polarization was suppressed by AD. Conclusion AD could promote macrophage proliferation and viability, augments LPS-driven M1 polarization, and inhibit IL-4-mediated M2 polarization, which provided experimental evidence for the potential application of AD in tumor immunotherapy.
8.Effect of Scutellariae Radix Combined with EGFR-TKIs on Non-small Cell Lung Cancer
Yaya YU ; Chenjing LEI ; Zhenzhen XIAO ; Qi MO ; Changju MA ; Lina DING ; Yadong CHEN ; Yanjuan ZHU ; Haibo ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(18):106-115
ObjectiveTo investigate the effects of Scutellariae Radix combined with epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) on cell proliferation, apoptosis, cancer stem cell (CSC) marker expression, and metabolism in non-small cell lung cancer (NSCLC) cells. MethodsThe anti-tumor effects of Scutellariae Radix and EGFR-TKIs (gefitinib or osimertinib) in NSCLC cells were evaluated using the cell counting kit-8 (CCK-8) and Annexin V-FITC/propidium iodide (PI) double staining apoptosis assay. The activity of Scutellariae Radix and EGFR-TKIs in three-dimensional (3D) cultures of NSCLC cells was assessed using the CellTiter-Glo® 3D cell viability assay. The mRNA and protein expression levels of CSC markers, sex determining region y box protein 2 (SOX2) and aldehyde dehydrogenase 1 family member A1 (ALDH1A1), were detected by quantitative real-time polymerase chain reaction (Real-time PCR) and Western blot, respectively. Changes in intracellular reactive oxygen species (ROS) levels were detected by ROS staining, and the redox ratio was detected by femtosecond laser labeling free imaging (FLI). ResultsUnder both two-dimensional (2D) and 3D culture conditions, compared with the blank group and EGFR-TKI group, the combination group showed significantly reduced cell viability and increased apoptosis rate (P<0.05). Compared with the EGFR-TKI group, the mRNA and protein levels of CSC markers were significantly downregulated in the combination group (P<0.05). Additionally, the redox ratio was significantly elevated (P<0.05), and ROS levels were also increased in the combination group compared with the EGFR-TKI group. ConclusionIn NSCLC cells, Scutellariae Radix enhances the redox ratio and increases ROS levels, thereby inhibiting the expression of CSC markers and strengthening the anti-tumor effects of EGFR-TKIs. This provides a novel molecular mechanism by which Scutellariae Radix may enhance the sensitivity of targeted therapies.
9.Analysis of the timeliness of anti-retroviral therapy among newly reported HIV/AIDS cases
SU Dehua ; CHEN Xiangyang ; LI Jun ; ZHAO Lina ; ZHANG Hemei ; ZHU Tingting ; HU Wenxue ; LAI Jiangyi
Journal of Preventive Medicine 2025;37(8):804-808
Objective:
To analyze the timeliness of antir-etroviral therapy (ART) and its influencing factors among newly reported HIV/AIDS cases in Wenzhou City, Zhejiang Province from 2016 to 2023, so as to provide a reference for improving the ART effect of HIV/AIDS cases.
Methods:
Newly reported HIV/AIDS cases in Wenzhou City from 2016 to 2023 were selected as the research subjects. Demographic information, the situation of the first CD4+ T lymphocyte (CD4 cell) test, baseline CD4 cell count, and ART situation were collected through the Chinese Disease Prevention and Control Information System. The timely rate of ART was analyzed, and the influencing factors for timely ART among HIV/AIDS cases were analyzed using a multivariable logistic regression model.
Results:
A total of 4 500 newly reported HIV/AIDS cases in Wenzhou City from 2016 to 2023 were included, among which 3 679 were males, accounting for 81.76%, and 821 were females, accounting for 18.24%. The median age was 46.24 (interquartile range, 26.23) years. Among these cases, 3 606 received timely ART, with a timely rate of 80.13%. The timely rate of ART increased from 57.54% in 2016 to 91.97% in 2023 (P<0.05). Multivariable logistic regression analysis showed that unmarried/divorced/widowed (OR=0.769, 95%CI: 0.641-0.922), detainees (OR=0.492, 95%CI: 0.269-0.900), untimely first CD4 cell test (OR=0.278, 95%CI: 0.234-0.330), baseline CD4 cell count ≥200 cells/µL (OR=0.709, 95%CI: 0.595-0.843) or undetected (OR=0.131, 95%CI: 0.080-0.213) were associated with a lower timeliness for ART among HIV/AIDS cases.
Conclusion
From 2016 to 2023, the timely rate of ART among newly reported HIV/AIDS cases in Wenzhou City showed an upward trend, which was mainly affected by marital status, case source, timeliness of the first CD4 cell test, and baseline CD4 cell count.
10.Effects of low-dose fractionated X-ray radiation on the senescence of L02 hepatocytes
Xin LAN ; Lina CAI ; Lingyu ZHANG ; Yashi CAI ; Linqian ZHOU ; Weiyi KE ; Weixu HUANG ; Jianming ZOU ; Huifeng CHEN
Chinese Journal of Radiological Health 2025;34(5):672-678
Objective To investigate the induction of senescence in L02 hepatocytes by low-dose fractionated X-ray radiation and its effects on oxidative stress, oxidative damage, and nuclear factor-κB (NF-κB) pathway protein levels. Methods L02 cells were subjected to fractionated X-ray irradiation at doses of 0.1, 0.2, and 0.5 Gy per fraction for a total of six fractions. Assays were performed 24 hours after the final irradiation. Measurements included SA-β-gal staining, the mRNAs of senescence-related genes p53 and p21 and their encoded proteins, mRNAs of genes encoding senescence-associated secretory phenotype factors (IL-6, IL-8, GM-CSF, MMP-15), reactive oxygen species, oxidative and anti-oxidative markers (malondialdehyde, glutathione, superoxide dismutase), DNA oxidative damage markers (8-OHdG and γ-H2AX), and NF-κB pathway protein levels. Results Compared with the control group, at 24 hours after the end of six irradiations, the number of cells positive in SA-β-gal staining was significantly increased in all dose groups. The mRNA and protein levels of p21 and p53 were significantly elevated in the 0.2 Gy × 6 and 0.5 Gy × 6 groups (P < 0.05). The mRNA levels of genes encoding IL-6, GM-CSF, and MMP-15 were significantly increased in all dose groups (P < 0.05). The mRNA levels of the gene encoding IL-8 were significantly increased in the 0.2 Gy × 6 and 0.5 Gy × 6 groups (P < 0.05). The levels of reactive oxygen species, malondialdehyde, and glutathione were significantly increased in all dose groups (P < 0.01). The level of superoxide dismutase was significantly increased in the 0.5 Gy × 6 group (P < 0.01). The levels of 8-OHdG were significantly increased in all dose groups (P < 0.05). In both the 0.2 Gy × 6 and 0.5 Gy × 6 groups, the expression levels of γ-H2AX and p-NF-κB p65 were significantly increased (P < 0.05), and the levels of IκBα were significantly decreased (P < 0.05). Conclusion Low-dose fractionated X-ray radiation can induce senescence and cause alterations in oxidative stress, oxidative damage, and the levels of NF-κB pathway proteins in L02 hepatocytes.


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