1.Anterior-approach vitrectomy combined with phacoemulsification and intraocular lens suspension on lens dislocation
Peishan XU ; Xinxin XU ; Wenkui ZHU
International Eye Science 2025;25(11):1864-1868
AIM: To analyze the clinical efficacy of anterior-approach vitrectomy combined with phacoemulsification and intraocular lens suspension on lens dislocation caused by high-pressure water pipe injury in mines.METHODS:A retrospective analysis was conducted on the data of 92 patients with lens dislocation caused by high-pressure water pipe injury in mines who underwent surgical treatment in Pingmei Shenma Medical Group General Hospital from April 2022 to August 2024. Complying with different surgical methods, they were classified into the traditional group(n=45, traditional surgery)and the study group(n=47, anterior-approach vitrectomy combined with phacoemulsification and intraocular lens suspension). Two groups were compared in terms of best corrected visual acuity(BCVA)and intraocular pressure at different time points before and after surgery, incidence of postoperative complications, and the visual function and quality of life questionnaire(VF-QOL)scores within 6 mo after surgery.RESULTS:There was comparability between the general information of the traditional group and the study group. Both groups showed a decrease in BCVA and intraocular pressure at 1, 3, and 6 mo postoperatively compared to preoperative levels(all P<0.05). Among them, the study group had lower BCVA(LogMAR)and intraocular pressure at 1, 3, and 6 mo postoperatively compared to the traditional group(all P<0.05). The study group had lower total incidence of postoperative complications than the traditional group(8% vs 26%, P<0.05). The study group had higher VF-QOL scores at 6 mo postoperatively than the traditional group(all P<0.01).CONCLUSION:Anterior-approach vitrectomy combined with phacoemulsification and intraocular lens suspension can effectively reduce intraocular pressure, clearly improve visual acuity and quality of life in patients with lens dislocation caused by high-pressure water pipe injury in mines, and have fewer postoperative complications.
2.Progress in the Application of Wearable Devices in Patients With Type 2 Diabetes Mellitus
Yuan GAO ; Min ZHOU ; Xuan XU ; Yahong FU ; Peishan TIAN ; Manfen QIN
Acta Academiae Medicinae Sinicae 2024;46(5):769-775
Type 2 diabetes mellitus,a common metabolic disease,has become a global public health challenge due to its high morbidity and disability.With the rise of mobile healthcare,the advancement of emer-ging technologies such as artificial intelligence,and the popularization of the concept of personalized health,the field of smart wearable devices is growing rapidly.Wearable devices are categorized into two types:medical and fitness wearable devices,which have been applied in the monitoring and regulation of blood glucose and the mod-ulation of healthy lifestyles of patients with type 2 diabetes mellitus.This article summarizes the research progress in the application of wearable devices in patients with type 2 diabetes mellitus in the past 8 years,with a view to promoting the application of wearable devices and realizing the whole life-cycle health management of patients with type 2 diabetes mellitus.
3.Over 50,000 Metagenomically Assembled Draft Genomes for the Human Oral Microbiome Reveal New Taxa
Zhu JIE ; Tian LIU ; Chen PEISHAN ; Han MO ; Song LIJU ; Tong XIN ; Sun XIAOHUAN ; Yang FANGMING ; Lin ZHIPENG ; Liu XING ; Liu CHUAN ; Wang XIAOHAN ; Lin YUXIANG ; Cai KAIYE ; Hou YONG ; Xu XUN ; Yang HUANMING ; Wang JIAN ; Kristiansen KARSTEN ; Xiao LIANG ; Zhang TAO ; Jia HUIJUE ; Jie ZHUYE
Genomics, Proteomics & Bioinformatics 2022;20(2):246-259
The oral cavity of each person is home to hundreds of bacterial species.While taxa for oral diseases have been studied using culture-based characterization as well as amplicon sequencing,metagenomic and genomic information remains scarce compared to the fecal microbiome.Here,using metagenomic shotgun data for 3346 oral metagenomic samples together with 808 published samples,we obtain 56,213 metagenome-assembled genomes(MAGs),and more than 64%of the 3589 species-level genome bins(SGBs)contain no publicly available genomes.The resulting genome collection is representative of samples around the world and contains many genomes from candi-date phyla radiation(CPR)that lack monoculture.Also,it enables the discovery of new taxa such as a genus Candidatus Bgiplasma within the family Acholeplasmataceae.Large-scale metagenomic data from massive samples also allow the assembly of strains from important oral taxa such as Por-phyromonas and Neisseria.The oral microbes encode genes that could potentially metabolize drugs.Apart from these findings,a strongly male-enriched Campylobacter species was identified.Oral sam-ples would be more user-friendly collected than fecal samples and have the potential for disease diagnosis.Thus,these data lay down a genomic framework for future inquiries of the human oral microbiome.
4.Effcets on immunoregulation of iNKT cells in RA by novel synthetic immunos-timulator CH1 b
Ming MENG ; Xuejiao ZHANG ; Peishan WENG ; Minghua XU ; Dan CHEN ; Minghui HOU ; Dongzhi CHEN
Chinese Journal of Immunology 2016;(2):218-222
Objective:To investigate effects of a novel synthetic immunostimulator CH1b containing thiazolidin-4-one on the immunoregulation funotion of iNKT ( invariant nature killer T ) cells in active RA patients in vitro.Methods: Peripheral blood mononuclear cells( PBMCs) isolated from active RA patients were cultured with stimulation of α-Galcer and IL-2 in vitro and iNKT cells were then separated by using magnetic activated cell sorting( MACS) method with iNKT isolation kit.The cells were divided into three groups:control group (IL-2),α-Galcer group (IL-2+α-Galcer),CH1b group(IL-2 +CH1b).The effects of CH1b on the proliferation of iNKT cells in active RA patients were analyzed by using MTT assay.MILLIPLEX MAP Human Cytokine/Chemokine kit was used to evaluate the secretion of IFN-γand IL-4 in iNKT cells culture media.The expressions of IFN-γmRNA and IL-4 mRNA in iNKT cells were analyzed by RT-PCR.Results: Compared with control and α-Galcer group,the proliferation of iNKT cells of CH1b group were significantly higher( P<0.05).Compared with control,the ratio of IFN-γ/IL-4 in iNKT cells culture media in active RA patients of CH1b group were significantly lower (P<0.05).Compared with control,expressions of IFN-γmRNA and IL-4 mRNA were higher inα-Galcer group;compared with control,expressions of IL-4 mRNA were higher in CH1b group,while there were no obvious difference on expressions of IFN-γmRNA.Conclusion:CH1b was found to significantly stimulate the actived iNKT cells in active RA patients proliferation,promote the secretion of IL-4,and increase the ratio of IFN-γ/IL-4,promote the expression of IL-4 mRNA in iNKT cells in active patients.
5.Study of the correlation between the percentage of iNKT cells and the ratio of IFN-γ/IL-4 in patients with rheumatoid arthritis
Ming MENG ; Dan CHEN ; Minghua XU ; Minghui HOU ; Peishan WENG ; Fang WEI ; Yong WANG ; Dongzhi CHEN
Chinese Journal of Microbiology and Immunology 2015;(3):213-218
Objective To investigate the alterations of invariant nature killer T( iNKT) cells in peripheral blood samples from patients with rheumatoid arthritis ( RA) and to clarify the correlation between the percentage of iNKT cells and the ratio of IFN-γ/IL-4 in order to further understand the significance of iNKT cells in the development of RA.Methods Peripheral blood mononuclear cells ( PBMCs) were isola-ted from 70 patients with RA and 40 healthy subjects.Among them, thirty patients in the stage of inactive RA were involved in a follow-up study.Fluorescence activated cell sorting ( FACS) was used to detect the percentage of iNKT cells.PBMCs were cultured in vitro for analysis of cytokine production.The dynamic changes of iNKT cells in percentages were analyzed by FACS.MILLIPLEX MAP Human Cytokine/Chemo-kine kit was used to measure the secretion of IFN-γand IL-4 in serum samples and culture media of PBMCs. The expression of IFN-γand IL-4 in iNKT cells at mRNA level were analyzed by RT-PCR.Results Com-pared with the healthy subjects, the patients with active RA showed the delayed proliferation of iNKT cells and the decreased percentages and proliferation rates of iNKT cells (P<0.05).The percentages and prolif-eration rates of iNKT cells in patients with active RA were significantly lower than those in patients with inac-tive RA (P<0.05).No statistical significant differences with iNKT cells were found between healthy sub-jects and patients with inactive RA (P>0.05).The ratios of IFN-γ/IL-4 in serum samples and culture media of PBMCs were increased in patients with active RA as compared with those in patients with inactive RA and healthy subjects (P<0.05).No statistical significant differences with the ratios of IFN-γ/IL-4 were observed between healthy subjects and patients with inactive RA (P>0.05).Compared with healthy subjects and patients with inactive RA, patients with active RA showed increased transcriptional level of IFN-γand decreased transcriptional level of IL-4.No significant differences with the expression of IFN-γand IL-4 in iNKT cells at mRNA level were observed between healthy subjects and patients with inactive RA.The per-centage of iNKT cells was negatively related to the IFN-γ/IL-4 ratio in patients with RA (P<0.05).Con-clusion Decreased percentage and impaired function of iNKT cells were detected in patients with RA. iNKT cells were closely related to the development and disease activity of RA.
6.Planning of the hepatocellular carcinoma's ablation by three-dimensional ultrasound:a preliminary study
Peishan GUAN ; Kai LI ; Rongqin ZHENG ; Liujun LI ; Zhongzhen SU ; Erjiao XU ; Jue WANG
Chinese Journal of Ultrasonography 2015;(5):407-411
Objective To discusse the feasibility and application value of the computer-assisted liver cancer ablation planning based on the three dimensional ultrasound.Methods Forty three-dimensional ultrasound images of 39 patients with 40 tumors'maximum diameter between 21 to 70 mm were collected and then acquired image segmentation and visualzation.The computer-assisted liver cancer ablation planning based on three dimensional ultrasound was comparied with the artificial ablation planning based on two dimensional ultrasound to find out the differences in the success rate,damage rate,time-consuming and the number of insertions between these two methods.Results Compared with the artificial ablation planning based on two dimensional ultrasound,the computer-assisted liver cancer ablation planning had a higher success rate(92.31% vs 53.85%,P =0.000),lower damage rate(7.50% vs 25.00%,P =0.034),shorter time-consuming(44.0 s vs 263.0 s,P =0.000)and less insersion times(3 vs 4,P =0.009).Conclusions The computer-assisted liver cancer ablation planning based on three dimensional ultrasound is more efficient and safety than the traditional way.
7.Comparison study of 3DUS-US and CT-US image fusion technology based on electromagnetic positioning
Liujun LI ; Xuqi HE ; Rongqin ZHENG ; Kai LI ; Erjiao XU ; Peishan GUAN ; Zhongzhen SU
Chinese Journal of Ultrasonography 2015;(9):805-808
Objective To compare the accuracy,convenience and repeatability of 3DUS-US and CT-US image fusion technology based on electromagnetic positioning.Methods A tissue-mimicking phantom was established and used to obtain ultrasound or CT volume images.Two different operators performed 3DUS-US and CT-US image fusion and repeated 10 times,respectively.The success rate,the registration error distance and fusion time of two techniques were recorded and compared between the different operators.Results The ultrasound and CT images of the phantom and its stability could meet the demands of this experiment.3DUS-US and CT-US image fusions were successful.The registration error distance of 3DUS-US image fusion was (1 .70 ± 0.42)mm and fusion time was (76.00 ± 9.99)s,they were obviously superior to CT-US (P = 0.014,P < 0.001 ).There were no significant differences between the two operators in the registration error distance and fusion time of 3DUS-US (P =0.508,P =0.5 1 7).But the registration error distance of CT-US image fusion in experienced operator was lower than the junior (P =0.009),and fusion time had not statistical difference between the two operators (P =0.234).Conclusions The technique of 3DUS-US automatic image fusion based on electromagnetic positioning has advantages of convenience and no experiential dependence comparing with CT-US in the phantom experiments,so it is worthy of being widely popularized in clinical application.
8.Quality analysis of commercial samples of Ziziphi spinosae semen (suanzaoren) by means of chromatographic fingerprinting assisted by principal component analysis
Shuai SUN ; Hailing LIU ; Shunjun XU ; Yuzhen YAN ; Peishan XIE
Journal of Pharmaceutical Analysis 2014;(3):217-222
Due to the scarcity of resources of Ziziphi spinosae semen (ZSS), many inferior goods and even adulterants are generally found in medicine markets. To strengthen the quality control, HPLC fingerprint common pattern established in this paper showed three main bioactive compounds in one chromatogram simultaneously. Principal component analysis based on DAD signals could discriminate adulterants and inferiorities. Principal component analysis indicated that all samples could be mainly regrouped into two main clusters according to the first principal component (PC1, redefined as Vicenin II) and the second principal component (PC2, redefined as zizyphusine). PC1 and PC2 could explain 91.42%of the variance. Content of zizyphusine fluctuated more greatly than that of spinosin, and this result was also confirmed by the HPTLC result. Samples with low content of jujubosides and two common adulterants could not be used equivalently with authenticated ones in clinic, while one reference standard extract could substitute the crude drug in pharmaceutical production. Giving special consideration to the well-known bioactive saponins but with low response by end absorption, a fast and cheap HPTLC method for quality control of ZSS was developed and the result obtained was commensurate well with that of HPLC analysis. Samples having similar fingerprints to HPTLC common pattern targeting at saponins could be regarded as authenticated ones. This work provided a faster and cheaper way for quality control of ZSS and laid foundation for establishing a more effective quality control method for ZSS.

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