1.Safety and efficacy of intrasaccular flow disruptor in intracranial aneurysms
Jifa LIU ; Yuanzhi LI ; Feng FAN ; Hang ZHANG ; Nan MA ; Zhen WANG ; Sheng GUAN
Chinese Journal of Neuromedicine 2025;24(3):230-234
Objective:To explore the safety and efficacy of intrasaccular flow disruptor in intracranial aneurysms, including wide-necked aneurysms.Methods:A retrospective analysis was performed; 102 patients with intracranial aneurysms treated with intrasaccular flow disruptor at Department of Neurointervention, First Affiliated Hospital of Zhengzhou University from August 2022 to November 2024 were enrolled; their clinical and imaging data were collected. The aneurysm characteristics and perioperative complications were summarized; aneurysm occlusion was evaluated by Woven EndoBridge occlusion scale (WOS) immediately after surgery and during the follow-up period.Results:Among the 102 aneurysms, 33 were anterior cerebral artery aneurysms, 40 were middle cerebral artery aneurysms, 17 were internal carotid artery aneurysms and 12 were basilar artery aneurysms; 73 aneurysms were regular intracranial saccular aneurysms and 29 were irregular saccular ones (17 of them with daughter sacs); 12 aneurysms were ruptured at acute phase. The surgical success rate was 100%: single intrasaccular flow disruptor was implanted into 95 patients, and stent-assisted or salvage treatments were given to 7 patients). Immediately after surgery, WOS grading A was noted in 5 patients, grading B in 7, grading C in 31, and grading D in 59. Two patients suffered severe perioperative complications and passed away: one patient died for ischemic complications that ensued after stent salvage treatment (parent artery being compressed by intrasaccular flow disruptor); the other patient died for hemorrhagic complications triggered by rupture of an initially unruptured aneurysm following intrasaccular flow disruptor implantation. Among them, 52 patients completed postoperative DSA follow-up, with a median follow-up of 205 (168, 292) days; WOS grading A was noted in 31 patients, grading B in 9, grading C in 8, and grading D in 4 at the last follow-up; the full occlusion rate was 92.3%, and no ischemic or hemorrhagic adverse events occurred.Conclusion:Intrasaccular flow disruptor shows high short-term safety and good efficacy in the treatment of intracranial aneurysms.
2.Prediction of Pharmacoresistance in Drug-Naïve Temporal Lobe Epilepsy Using Ictal EEGs Based on Convolutional Neural Network.
Yiwei GONG ; Zheng ZHANG ; Yuanzhi YANG ; Shuo ZHANG ; Ruifeng ZHENG ; Xin LI ; Xiaoyun QIU ; Yang ZHENG ; Shuang WANG ; Wenyu LIU ; Fan FEI ; Heming CHENG ; Yi WANG ; Dong ZHOU ; Kejie HUANG ; Zhong CHEN ; Cenglin XU
Neuroscience Bulletin 2025;41(5):790-804
Approximately 30%-40% of epilepsy patients do not respond well to adequate anti-seizure medications (ASMs), a condition known as pharmacoresistant epilepsy. The management of pharmacoresistant epilepsy remains an intractable issue in the clinic. Its early prediction is important for prevention and diagnosis. However, it still lacks effective predictors and approaches. Here, a classical model of pharmacoresistant temporal lobe epilepsy (TLE) was established to screen pharmacoresistant and pharmaco-responsive individuals by applying phenytoin to amygdaloid-kindled rats. Ictal electroencephalograms (EEGs) recorded before phenytoin treatment were analyzed. Based on ictal EEGs from pharmacoresistant and pharmaco-responsive rats, a convolutional neural network predictive model was constructed to predict pharmacoresistance, and achieved 78% prediction accuracy. We further found the ictal EEGs from pharmacoresistant rats have a lower gamma-band power, which was verified in seizure EEGs from pharmacoresistant TLE patients. Prospectively, therapies targeting the subiculum in those predicted as "pharmacoresistant" individual rats significantly reduced the subsequent occurrence of pharmacoresistance. These results demonstrate a new methodology to predict whether TLE individuals become resistant to ASMs in a classic pharmacoresistant TLE model. This may be of translational importance for the precise management of pharmacoresistant TLE.
Epilepsy, Temporal Lobe/diagnosis*
;
Animals
;
Drug Resistant Epilepsy/drug therapy*
;
Electroencephalography/methods*
;
Rats
;
Anticonvulsants/pharmacology*
;
Neural Networks, Computer
;
Male
;
Humans
;
Phenytoin/pharmacology*
;
Adult
;
Disease Models, Animal
;
Female
;
Rats, Sprague-Dawley
;
Young Adult
;
Convolutional Neural Networks
3.Safety and efficacy of intrasaccular flow disruptor in intracranial aneurysms
Jifa LIU ; Yuanzhi LI ; Feng FAN ; Hang ZHANG ; Nan MA ; Zhen WANG ; Sheng GUAN
Chinese Journal of Neuromedicine 2025;24(3):230-234
Objective:To explore the safety and efficacy of intrasaccular flow disruptor in intracranial aneurysms, including wide-necked aneurysms.Methods:A retrospective analysis was performed; 102 patients with intracranial aneurysms treated with intrasaccular flow disruptor at Department of Neurointervention, First Affiliated Hospital of Zhengzhou University from August 2022 to November 2024 were enrolled; their clinical and imaging data were collected. The aneurysm characteristics and perioperative complications were summarized; aneurysm occlusion was evaluated by Woven EndoBridge occlusion scale (WOS) immediately after surgery and during the follow-up period.Results:Among the 102 aneurysms, 33 were anterior cerebral artery aneurysms, 40 were middle cerebral artery aneurysms, 17 were internal carotid artery aneurysms and 12 were basilar artery aneurysms; 73 aneurysms were regular intracranial saccular aneurysms and 29 were irregular saccular ones (17 of them with daughter sacs); 12 aneurysms were ruptured at acute phase. The surgical success rate was 100%: single intrasaccular flow disruptor was implanted into 95 patients, and stent-assisted or salvage treatments were given to 7 patients). Immediately after surgery, WOS grading A was noted in 5 patients, grading B in 7, grading C in 31, and grading D in 59. Two patients suffered severe perioperative complications and passed away: one patient died for ischemic complications that ensued after stent salvage treatment (parent artery being compressed by intrasaccular flow disruptor); the other patient died for hemorrhagic complications triggered by rupture of an initially unruptured aneurysm following intrasaccular flow disruptor implantation. Among them, 52 patients completed postoperative DSA follow-up, with a median follow-up of 205 (168, 292) days; WOS grading A was noted in 31 patients, grading B in 9, grading C in 8, and grading D in 4 at the last follow-up; the full occlusion rate was 92.3%, and no ischemic or hemorrhagic adverse events occurred.Conclusion:Intrasaccular flow disruptor shows high short-term safety and good efficacy in the treatment of intracranial aneurysms.
4.Relationship among maternal gut,vaginal microbiota and microbiota in meconium and vernix caseosa in newborns
Jinqian MA ; Pianpian FAN ; Tao ZHENG ; Lin ZHANG ; Yuanzhi CHEN ; Jian SHEN ; Fengxiu OUYANG
Journal of Shanghai Jiaotong University(Medical Science) 2024;44(1):50-63
Objective·To analyze the diversity and composition of the maternal gut microbiota and vaginal microbiota in late pregnancy,neonatal meconium microbiota and vernix caseosa microbiota,and analyze the similarities,differences and correlations.Methods·This is a prospective study.Maternal stool samples and vaginal swabs in late-pregnancy,and neonatal meconium samples were collected from 11 mother-infant pairs at Xinhua Hospital,Shanghai Jiao Tong University School of Medicine from August to November 2018;the vernix caseosa from three sites(forehead,axilla,and inguinal crease)and meconium samples were collected from 14 healthy newborns at International Peace Maternity and Child Health Hospital,Shanghai Jiao Tong University School of Medicine in December 2018.All births were vaginal deliveries.The 16S rRNA gene V3?V4 region sequencing was used.The diversity,composition and similarities/differences of the maternal gut microbiota,the vaginal microbiota,and the neonatal meconium microbiota from the 11 mother-infant pairs,as well as the neonatal vernix caseosa microbiota and the meconium microbiota from the 14 newborns were analyzed.Results·The number of operational taxonomic units(OTUs),ACE index,Chao1 index,and Shannon index of maternal gut microbiota were all higher than those of vaginal microbiota;the ACE indices and the Chao1 indices of the vernix caseosa microbiota at three sites were all higher than those of meconium microbiota(P<0.01).The β diversity varied among the maternal gut microbiota,vaginal microbiota,and neonatal meconium microbiota(P<0.01).The β diversity of neonatal vernix caseosa microbiota from three sites(forehead,axilla,and inguinal crease)was similar,but different from meconium microbiota(P<0.01).At the phylum level,the dominant bacteria were Firmicutes(52.76%)and Bacteroidetes(41.67%)in the maternal gut microbiota,Firmicutes(74.36%)and Actinobacteria(21.25%)in the maternal vaginal microbiota,and Firmicutes(84.22%)and Proteobacteria(8.80%)in the neonatal vernix caseosa microbiota.The dominant bacterium in the neonatal meconium was Proteobacteria in the two batches of samples(81.11%and 88.72%,respectively).At the genus level,the dominant bacteria were Bacteroides(35.42%)and Faecalibacterium(10.12%)in the maternal gut microbiota,Lactobacillus(69.10%)and Bifidobacterium(11.30%)in the vaginal microbiota,and Lactobacillus(79.81%)and Pseudomonas(3.23%)in the vernix caseosa microbiota.The dominant bacterium in the neonatal meconium was Escherichia in the two batches of samples(55.21%and 31.18%,respectively).Conclusion·The α diversity of maternal gut microbiota is higher than that of vaginal microbiota and neonatal meconium microbiota,and it is higher in neonatal vernix caseosa than that in meconium microbiota.The Firmicutes is the predominant phylum in the maternal late-pregnancy gut microbiota,vaginal microbiota,and neonatal vernix microbiota.Lactobacillus is the predominant genus in both maternal vaginal and neonatal vernix caseosa microbiota.Proteobacteria in phylum and Escherichia in genus are predominant in meconium microbiota.The microbiota composition is similar in vernix caseosa at different body sites,but there are differences between the vernix caseosa microbiota and meconium microbiota.
5.A YAP/TAZ-CD54 axis is required for CXCR2-CD44- tumor-specific neutrophils to suppress gastric cancer.
Pingping NIE ; Weihong ZHANG ; Yan MENG ; Moubin LIN ; Fenghua GUO ; Hui ZHANG ; Zhenzhu TONG ; Meng WANG ; Fan CHEN ; Liwei AN ; Yang TANG ; Yi HAN ; Ruixian YU ; Wenjia WANG ; Yuanzhi XU ; Linxin WEI ; Zhaocai ZHOU ; Shi JIAO
Protein & Cell 2023;14(7):513-531
As an important part of tumor microenvironment, neutrophils are poorly understood due to their spatiotemporal heterogeneity in tumorigenesis. Here we defined, at single-cell resolution, CD44-CXCR2- neutrophils as tumor-specific neutrophils (tsNeus) in both mouse and human gastric cancer (GC). We uncovered a Hippo regulon in neutrophils with unique YAP signature genes (e.g., ICAM1, CD14, EGR1) distinct from those identified in epithelial and/or cancer cells. Importantly, knockout of YAP/TAZ in neutrophils impaired their differentiation into CD54+ tsNeus and reduced their antitumor activity, leading to accelerated GC progression. Moreover, the relative amounts of CD54+ tsNeus were found to be negatively associated with GC progression and positively associated with patient survival. Interestingly, GC patients receiving neoadjuvant chemotherapy had increased numbers of CD54+ tsNeus. Furthermore, pharmacologically enhancing YAP activity selectively activated neutrophils to suppress refractory GC, with no significant inflammation-related side effects. Thus, our work characterized tumor-specific neutrophils in GC and revealed an essential role of YAP/TAZ-CD54 axis in tsNeus, opening a new possibility to develop neutrophil-based antitumor therapeutics.
Humans
;
Animals
;
Mice
;
Adaptor Proteins, Signal Transducing/metabolism*
;
Transcription Factors/metabolism*
;
Stomach Neoplasms/pathology*
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Neutrophils/pathology*
;
Signal Transduction/genetics*
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YAP-Signaling Proteins
;
Tumor Microenvironment
;
Hyaluronan Receptors/genetics*
6. Effect of nursing intervention on incidence of agitation and negative emotion in patients recovering from general anesthesia in operating room
Yuhong FAN ; Qinghua PAN ; Xiaohua HU ; Yuanzhi WANG
Chinese Journal of Practical Nursing 2020;36(4):272-275
Objective:
To investigate the effect of nursing intervention on the incidence of agitation and negative emotion in patients undergoing general anesthesia recovery.
Methods:
Totally 120 patients with general anesthesia admitted to the Binzhou Central Hospital, Shandong Province from January 2017 to January 2019 were divided into the control group and the observation group by random digits table method with 60 cases each. Those in the control group was given routine nursing, the observation group was given integrated care. The incidence rate of agitation, conscious recovery time, the time of wake-up score≥4 and negative emotional changes in the two groups were compared.
Results:
The incidence of agitation in the observation group was 6.67% (4/60), which was lower than that in the control group (25.0%, 15/60). The difference was statistically significant (
7.Mechanism of hyperbaric oxygen-regulating inflammatory response through PI3K/AKT pathway after spinal cord injury in rats
Chinese journal of nautical medicine and hyperbaric medicine 2017;24(5):352-355,389
Objective To explore the effects of hyperbaric oxygen (HBO) on inflammatory response through PI3K/AKT pathway after spinal cord injury (SCI) in rats and investigate the possible mechanism involved.Methods Thirty rats were divided into the HBO group,the HBO combined with PI3K group and the LY294002 group,each consisting of 10 animals.In accordance with the time of spinal cord injury,another 40 rats were divided into 4 groups,i.e.the injury on day 1 group (or the day 1 group),the injury on day 5 group (or the day 5 group),the day 10 group and the control group (the non-injury group),each consisting of 10 animals.One day,5 and 10 days after spinal cord injury,as well as after HBO therapy,the expression levels of phosphoinositide 3-kinase (PI3K),protein kinase B (AKT),p-PI3K,p-AKT and IFN-γ,IL-6 and TNF-α were respectively detected by using Western Blotting and ELISA.The expression levels of IFN-γ,IL-6 and TNF-α in the HBO group,the HBO combined with PI3K group,the LY294002 group and the day one group were detected by using ELISA.Results HBO therapy could significantly increase the expression levels of PI3K,AKT,p-PI3K,p-AKT following spinal cord injury,and decrease the expression levels of IFN-γ,IL-6 and TNF-α(P < 0.05).The expression levels of IFN-γ,IL-6 and TNF-α were decreased both in the HBO group and the LY294002 group,however,their expression levels were significantly depressed following over expression of PI3K (P < 0.05).Conclusions HBO could significantly inhibit inflammation response after spinal cord injury in rats through the regulation of the PI3K/AKT pathways,indicating that HBO could play an important role in clinical treatment of spinal cord injury,especially in the case of inflammatory response after spinal cord injury.
8.Mechanism of hyperbaric oxygen-regulating inflammatory response through PI3K/AKT pathway after spinal cord injury in rats
Chinese journal of nautical medicine and hyperbaric medicine 2017;24(5):352-355,389
Objective To explore the effects of hyperbaric oxygen (HBO) on inflammatory response through PI3K/AKT pathway after spinal cord injury (SCI) in rats and investigate the possible mechanism involved.Methods Thirty rats were divided into the HBO group,the HBO combined with PI3K group and the LY294002 group,each consisting of 10 animals.In accordance with the time of spinal cord injury,another 40 rats were divided into 4 groups,i.e.the injury on day 1 group (or the day 1 group),the injury on day 5 group (or the day 5 group),the day 10 group and the control group (the non-injury group),each consisting of 10 animals.One day,5 and 10 days after spinal cord injury,as well as after HBO therapy,the expression levels of phosphoinositide 3-kinase (PI3K),protein kinase B (AKT),p-PI3K,p-AKT and IFN-γ,IL-6 and TNF-α were respectively detected by using Western Blotting and ELISA.The expression levels of IFN-γ,IL-6 and TNF-α in the HBO group,the HBO combined with PI3K group,the LY294002 group and the day one group were detected by using ELISA.Results HBO therapy could significantly increase the expression levels of PI3K,AKT,p-PI3K,p-AKT following spinal cord injury,and decrease the expression levels of IFN-γ,IL-6 and TNF-α(P < 0.05).The expression levels of IFN-γ,IL-6 and TNF-α were decreased both in the HBO group and the LY294002 group,however,their expression levels were significantly depressed following over expression of PI3K (P < 0.05).Conclusions HBO could significantly inhibit inflammation response after spinal cord injury in rats through the regulation of the PI3K/AKT pathways,indicating that HBO could play an important role in clinical treatment of spinal cord injury,especially in the case of inflammatory response after spinal cord injury.
9.Constructing CXCR4 lentiviral vector and transfecting breast cancer cells
Siqin DUAN ; Yao FAN ; Xue ZHAO ; Yuanzhi CAO ; Yi TAN ; Beiguo LONG ; Weifeng MA
The Journal of Practical Medicine 2015;(17):2786-2789
Objective To construct lentivirus containing CXCR4 gene and transfect MCF-7 cells , and obtain CXCR4 high-expressing MCF-7 cells. Methods CXCR4 gene was amplified by RT-PCR to construct CXCR4/pSin-EF2, which was transfected into HEK293T cells with psPAX2 and pMD2G vector for lentivirus packing. Packaged lentivirus was used to transfect human breast cancer cells MCF-7, with empty lentivirus as control. CXCR4 mRNA and protein expression levels were detected by RT-PCR and Western blot before and after transfection. And flow cytometry was used to detecte cell surface CXCR4 expression. Results The recombinant plasmid CXCR4/pSin-EF2 was constructed successfully,identified by double digestion and sequencing, and transfected into HEK293T cells to obtain high-titer lentivirus. RT-PCR and Western blot confirmed that the expression of CXCR4 in MCF-7 cells increased significantly after CXCR4 lentivirus transfection. Flow cytometry results showed that the CXCR4 positive rate increased from 26.78% to 99.29%, while there is no significant difference in CXCR4 expression between vector-transfected MCF-7 cells and non-transfected MCF-7 cells. Conclusion CXCR4 lentivirus and the breast cancer cell line with high and stable expression of CXCR4 (MCF-7CXCR4) were successfully constructed.
10.Effect of Electroacupuncture Combined with Tuina on Lumbar Muscle Tone in Patients with Acute Lumbar Sprain
Journal of Acupuncture and Tuina Science 2014;(5):310-315
Objective: To observe the clinical effect of electroacupuncture (EA) combined with tuina on acute lumbar sprain and lumbar muscle tone before and after treatment. <br> Methods: A total of 130 acute lumbar sprain cases were randomly allocated into an observation group and a control group, 65 in each group. Cases in the observation group were treated with EA combined with tuina, whereas cases in the control group were treated with Diclofenac Sodium Dual Release Enteric-coated capsules. The muscle tones in two groups were tested before and after treatment. <br> Results: The recovery rate and overall response rate in the observation group were 66.2% and 93.8% respectively, versus 56.9% and 87.7% in the control group, showing no between-group statistical significances (P>0.05). After treatment, the force-displacement area under curve (AUC) in both groups showed a significance difference (P<0.05). <br> Conclusion: Both EA combined with tuina and aforementioned oral medication have remarkable effects for acute lumbar sprain, and the former can better improve the lumbar muscle tone in patients with acute lumbar sprain.

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