1.Effect of intense pulsed light on hair removal in pediatric auricular reconstruction using tissue expander
Ying LIU ; Ling ZHANG ; Shuoduo HU ; Lvping HUANG ; Lin LIN ; Lingyu ZHENG
Chinese Journal of Medical Aesthetics and Cosmetology 2024;30(1):36-41
Objective:To investigate the safety and efficiency of depilation with intense pulsed light (IPL) in congenital microtia patients during different phase of reconstruction treatment sessions.Methods:The hairy skin was treated with the M22TM system (Lumenis, German) using a filter of 695-1 200 mm. A three pluses mode of the radiant setting with a pulse width of 3.5 ms, a delay of 60 ms, and an energy density of 16-18 mJ/cm 2 was applied in the expanded patients. Depilation efficacy was evaluated as follows: excellent (hair density reduction >75%), good (50%-75%), fair (25%-50%), and poor (<25%). The depilation effect was compared between different phases. And the adverse effect was observed. Results:A total of 131 cases were included. There was no difference of the hair density reduction between patients with different expander volume after same IPL depilation treatments [15 (13-19) vs. 16 (15-19) root/cm 2, Wilcoxon rank analysis]. The hair density reduction in the expansion group was lower than the non-expansion group after two IPL depilation treatments [15 (13-19) vs. 17 (15-21) root/cm 2, P<0.05, Wilcoxon rank analysis]. The depilation efficacy was highly related with the numbers of IPL depilation treatments the patients received [Kendall′ stat b=0.74 (95% CI: 0.71-0.77), P<0.05]. There were 3 cases of folliculitis, 2 cases of blisters occurred in this study, and no expander exposure and cartilage absorption were observed. Conclusions:Hair removal with IPL is a safe and effective photo-epilation method during all stages of ear reconstruction using tissue expander. The volume of the expander does not significantly affect the hair removal efficiency. Depilation in the expansion phase is more efficient than that in the non-expansion phase, and the ideal result of " hair-free" or " less hairy" reconstructed ears can be achieved in 5 treatments, with suboptimal results in 3 treatments.
2.Expression and significance of ubiquitin-specific proteases 20 and hypoxia inducible factor-1α in breast cancer
Lingyu FANG ; Jinghua HU ; Junfeng WEN ; Shiqi HAN ; Yali WANG ; Lulan PU ; Jingjia LI ; Yi YANG ; Shishan DENG ; Lingmi HOU ; Fangfang ZHOU
The Journal of Practical Medicine 2024;40(16):2270-2276
Objective To explore the changes and significane of USP20 and HIF-α expression in breast cancer.Methods Following transfection of shRNA-USP20 lentivirus into breast cancer MDA-MB-231 cells,the gene and protein expression levels of USP20 were detected using fluorescence quantitative PCR and Western Blot.Subsequently,the overexpression of USP20 was observed to determine its effect on HIF-α expression.Similarly,siRNA-USP20 was used to knock down USP20 in breast cancer MDA-MB-231 cells,followed by detection of gene and protein expression levels using fluorescence quantitative PCR and Western Blot.The subsequent changes in HIF-α expression were then examined.Rusults The positive expression rates of USP20 and HIF-α in breast cancer tissues were 69.6%and 46.83%,respectively,while they were negatively expressed in the adjacent normal tissues,with statistically significant differences(P<0.01).The positive expressions of USP20 and HIF-α were predomi-nantly observed in the cytoplasm of breast cancer tissue,with a smaller amount present in the nucleus.There was a significant positive correlation between USP20 and HIF-α in breast cancer.Following transfection of shRNA-USP20 lentivirus into MDA-MB-231 cells,both the protein and gene expression levels of USP20 significantly increased(P<0.01).Over-expression of USP20 did not affect HIF-α mRNA levels but led to a significant increase in HIF-α protein expression(P<0.01).Conversely,siRNA-USP20 interference resulted in a significant decrease in both the protein and gene expression levels of USP20(P<0.01),without affecting HIF-α mRNA levels;however,it caused a notable reduction in HIF-α protein expression(P<0.01).Conclusion The expression of USP20 exhib-ited a significant positive correlation with HIF-α in breast cancer.Overexpression of USP20 led to a substantial increase in HIF-α protein expression,while knock-down of the USP20 gene resulted in a significant decrease in HIF-α protein levels.Therefore,it can be inferred that USP20 may exert its influence on the development of breast cancer through modulation of HIF-α expression,thereby providing crucial experimental evidence for clinical treat-ment,prognosis,and further investigations.
3.Effect of EPDR1 on hepatocyte lipid deposition
Guifang WANG ; Xuebing CHANG ; Laying HU ; Lu LIU ; Yali HUANG ; Lingyu SONG ; Yuxia ZHOU ; Bing GUO
Chinese Journal of Pathophysiology 2024;40(7):1205-1212
AIM:This study aims to examine the ependymin-related protein 1(EPDR1)expression in various tissues from wild-type C57BL/6 mice and type 2 diabetes(db/db)mice.The impact of EPDR1 on lipid accumulation in al-pha mouse liver 12(AML12)hepatocytes was also investigated.METHODS:Western blot was used to detect EPDR1 protein expression in the heart,liver,spleen,lung,kidney,gastrocnemius,brown adipose and brain tissues of C57BL/6 mice.Western blot and immunohistochemical(IHC)staining were also used to compare EPDR1 protein expression in the liver,gastrocnemius muscle,heart and kidney tissues of db/db and C57BL/6 mice.To develop an AML12 cell lipid deposi-tion model,palmitic acid(PA)+oleic acid(OA)was used,and the cells were transfected with adenovirus overexpressing EPDR1 or treated with exogenous recombinant EPDR1 protein(rEPDR1).ELISA was conducted to determine intracellu-lar triglyceride(TG)content,and oil red O staining was employed to assess the effect of EPDR1 on lipid accumulation in AML12 cells.RESULTS:Western blot and IHC staining results revealed that EPDR1 was widely expressed in various tis-sues of wild-type mice,with the liver exhibiting the highest protein expression level.However,EPDR1 expression was down-regulated in the liver,gastrocnemius muscle,heart and kidney tissues in diabetic db/db mice compared with wild-type mice.Oil red O staining revealed that overexpression of EPDR1 in AML12 liver cells or rEPDR1 treatment led to re-duced lipid accumulation.Furthermore,the TG content significantly decreased compared with the model group(P<0.05).CONCLUSION:EPDR1 is expressed in various tissues of wild-type mice,but showed diminished expression in the liver tissues of diabetic mice.Nevertheless,enhancing the expression of EPDR1 can aid in reducing lipid accumula-tion in hepatocytes.These findings provide an experimental foundation for further exploration of the role of EPDR1 in the development of fatty liver in diabetic liver tissue.
4.Application progress of Satir communication model in nursing from the perspective of family support
Yimeng CHEN ; Yinning GUO ; Hanfei ZHU ; Kang ZHAO ; Ting XU ; Lidong HUANG ; Lingyu DING ; Jieman HU ; Qin XU
Chinese Journal of Nursing 2024;59(19):2413-2419
As a type of experiential psychotherapy,Satir communication model can help the individual system and the family system achieve a state from dysfunction to healthy function,which can enrich the intervention connotation of family support and provide a new direction for the realization of full-life circle care.This paper aims to introduce the concept,core elements,common treatment techniques,application and effects,current challenges and relevant suggestions of Satir communication model in the nursing field from the perspective of family support,in order to provide references for the localization development and clinical integration of Satir communication model in the field of nursing in China.
5.Predictive efficacy of low grip strength and grip asymmetry on postoperative outcomes in elderly patients with colorectal cancer
Lingyu DING ; Jieman HU ; Yueming SUN ; Cui YAO
Journal of Clinical Medicine in Practice 2024;28(12):77-81
Objective To observe the efficacy of low grip strength and grip asymmetry in predicting multiple postoperative outcomes in elderly patients with colorectal cancer. Methods A total of 257 elderly colorectal cancer patients were selected as study objects. Data on general information, grip strength indicators and adverse postoperative outcomes were collected from all patients. Associations of low grip strength, grip asymmetry with adverse postoperative outcomes were explored by Logistic regression. Receiver operating characteristic curves were plotted to further analyze the efficacy of low grip strength and grip asymmetry alone and their combination in predicting adverse outcomes of patients. Results Grip strength, grip strength ratio, and the combination of grip strength and grip strength ratio could effectively predict the occurrence of complications. The areas under the curve (AUCs) and 95% confidence interval (95%CI) were 0.649 (0.587 to 0.707), 0.627 (0.565 to 0.686), and 0.672 (0.611 to 0.729) respectively. Grip strength ratio and the combination of grip strength and grip strength ratio could effectively predict prolonged hospital stays, with AUC(95%CI) of 0.671 (0.610 to 0.728) and 0.577 (0.514 to 0.638), respectively. Grip strength and the combination of grip strength and grip strength ratio could effectively predict the occurrence of frailty, with AUC (95%CI) of 0.585 (0.522 to 0.646) and 0.586 (0.523 to 0.647), respectively. Conclusion This study innovatively reveals the predictive efficacy of multiple grip strength indicators for postoperative outcomes in colorectal cancer patients. Low grip strength and grip asymmetry are effective in predicting the occurrence of complications in patients, grip asymmetry is effective in predicting the occurrence of prolonged hospitalization, and low grip strength is effective in predicting the occurrence of frailty in elderly patients with colorectal cancer.
6.Effect of low frequency or high frequency repetitive transcranial magnetic stimulation on stroke patients with nonfluent aphasia
Xueyan HU ; Xiaofeng JIANG ; Lei SHAN ; Lingyu YANG ; Yudong CHEN ; Lin MA ; Lixu LIU ; Tong ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2023;29(3):249-255
ObjectiveTo explore the effect of low frequency or high frequency repetitive transcranial magnetic stimulation (rTMS) on right Broca's homologue in stroke patients with nonfluent aphasia. MethodsFrom January, 2019 to August, 2022, 80 inpatients in Beijing Bo'ai Hospital were randomly divided into control group (n = 20), sham stimulation group (n = 20), low-frequency (1 Hz) rTMS (LF-rTMS) group (n = 20) and high-frequency (10 Hz) rTMS (HF-rTMS) group (n = 20). All the patients received routine language therapy. LF-rTMS group and HF-rTMS group received ten days of rTMS (1 Hz or 10 Hz), and the sham group received ten days of sham rTMS. The Western Aphasia Battery (WAB) was used to evaluate the language function before, after treatment, and two months after treatment. ResultsBefore treatment, there was no significant difference in the scores of WAB among four groups (P > 0.05). All the scores improved in the four groups immediately after treatment and two months after treatment (P < 0.05). Compared with immediately after treatment, all the scores of WAB improved in LF-rTMS group (P < 0.05), and the scores of recall, name and aphasia quotient (AQ) improved in HF-rTMS group (P < 0.05) two months after treatment. Immediately after treatment, the scores of content and fluency, auditory comprehension and AQ were higher in LF-rTMS group than in HF-rTMS group (P < 0.05). Two months after treatment, the scores of content and fluency were higher in LF-rTMS group than in HF-rTMS group (P < 0.05). ConclusionBoth 1 Hz and 10 Hz rTMS could improve the language function of stroke patients with nonfluent aphasia, especially 1 Hz.
7.Finite element analysis of maxillary edentulous at different implant sites combined with the pterygomaxillary implants
Acta Universitatis Medicinalis Anhui 2023;58(4):702-706
Objective :
To explore the effects of different implant sites combined with pterygomaxillary implantation on the biomechanics of implant and bone tissue,and to provide a basis for clinical selection of implant design in accordance with biomechanical principles.
Methods:
The cone-beam CT scan data of an edentulous maxillary with inadequate posterior bone were selected to complete the establishment of the three-dimensional entity model of the maxilla.The prosthesis and implant-abutment integrated three-dimensional entity models were established using the prosthesis and implant data ,and five groups of three-dimensional finite element models of different implant sites were designed.A unilateral vertical load of 200 N and an oblique load of 100 N were applied to the bilateral posterior dental area,respectively.ANSYS finite element analysis software was used to calculate the stress distribution on the surface of the implant and surrounding bone tissue.SPSS 26. 0 software package was used to statistically analyze the data.
Results :
① All the five models showed that the maximum stress was concentrated in the neck of the implants and cortical bone. ② The maximum stress value of the implant under oblique loading was greater than that under vertical loading (P<0. 05) ,but there was no significant difference in the maximum stress value around bone tissue in the 5 groups of models. ③ There was no significant difference in the maximum stress of the implant and bone between the different implant sites combined with pterygomaxillary implants.
Conclusion
In the fixed restoration of maxillary edentulous implants,pterygomaxillary implants implanted symmetrically on both sides and changing the position point of the anterior implant do not affected the stress distribution of the whole design.In clinical practice,suitable sites can be selected according to the residual bone mass of patients,and combined with pterygomaxillary implantation for implant design.
8.Correlation of ARK5 expression in peripheral blood circulating tumor cells with curative efficacy and prognosis for gemcitabine chemotherapy in pancreatic cancer patients
Zhaofeng GAO ; Wei GUO ; Xiaodan YANG ; Xiaorong LIU ; Lingyu HU ; Xiaoguang WANG
Chinese Journal of Pancreatology 2023;23(5):330-334
Objective:To detect the expression of ARK5 in peripheral blood circulating tumor cells (CTCs) from pancreatic cancer patients and explore its correlation with the efficacy and prognosis for gemcitabine chemotherapy.Methods:A total of 175 peripheral blood samples of pancreatic cancer patients who were treated in the Department of Hepatobiliary Surgery, Second Affiliated Hospital of Jiaxing University from January 2016 to June 2021 were collected. CTCs were enriched by nano-microfluidic chip technology. The expression of ARK5 in CTCs was detected by immunofluorescence. According to the expression of ARK5, the patients were divided into two groups: positive group and negative group. The differences on clinicopathological features, the efficacy of chemotherapy, median survival and progression-free survival time between the two groups were compared.Results:CTCs were enriched in 98 of 175 patients (55.6%), including 70 ARK5 positive and 28 ARK5 negative patients. There were no significant differences on clinical features between the two groups, and the two groups were comparable. In the 70 ARK5 positive patients, 64 patients (91.4%) were resistant to gemcitabine, while only 12 of the 28 ARK5 negative patients (42.8%) were resistant to gemcitabine. The incidence of gemcitabine resistance in ARK5 positive patients was significantly higher than that in ARK5 negative patients, and the difference was statistically significant ( P<0.001). The median survival time was 11.5 months in ARK5 positive group and 14 months in ARK5 negative expression group, and the progression-free survival time was 6 months in ARK5 positive expression group and 8 months in negative expression group. The survival time of ARK5 positive group was significantly shorter than that of ARK5 negative group, and the difference was statistically significant ( P<0.05). Conclusions:The pancreatic cancer patients with ARK5 positive CTCs have significantly higher incidence of gemcitabine resistance and shorter survival time than those with ARK5 negative CTCs. Detection of ARK5 expression in CTCs may be a new method to judge chemotherapy efficacy and prognosis for pancreatic cancer patients.
9.Epidemiology and functional outcome of venous thromboembolism after stroke in rehabilitation wards
Xiaoli WU ; Xueyan HU ; Yuge ZHANG ; Changqing YE ; Yudong CHEN ; Hanzhi LI ; Lingyu YANG ; Fei GAO ; Yuqi YANG ; Lei SHAN ; Lixu LIU
Chinese Journal of Rehabilitation Theory and Practice 2022;28(1):44-49
Objective To explore the risk of venous thromboembolism (VTE), especially lower-extremity deep vein thrombosis (DVT) and pulmonary embolism (PE), for stroke patients in rehabilitating, and the functional outcome. Methods A total of 3 557 stroke patients in the neurological rehabilitation center of Beijing Bo'ai Hospital for stroke rehabilitation from January, 2015 to October, 2020 were reviewed through the electronic medical record system. Demographic characteristics, stroke characteristics (type and location), laboratory data (D-dimer polymer and arterial partial pressure of oxygen), motor function (Brunnstrom stage, Fugl-Meyer Assessment of motor and balance, modified Ashworth Scale score of triceps crus, and Holden Walking Ability Classification), activities of daily living (Barthel Index), and anticoagulant/antiplatelet treatment data were collected and analyzed. Results The incidence of DVT and PE was 28.5% and 1.29%, respectively. Most were found 30 days later after onset. The incidence of PE was higher after ischemic stroke (χ2 = 12.49, P < 0.001) rather than hemorrhagic stroke. The patients with hemispheric stroke, severe lower-extremity paralysis, and poor activities of daily living were more prone to complications associated with VTE. After rehabilitation, the function of stroke patients with PE could be improved (|t| > 4.302, P < 0.001). Conclusion The risk of DVT and PE in patients during stroke convalescence may not be negligible, and those with older age, previous history of thrombosis, severe stroke, and severe limb paralysis may be stratified in high-risk. Following anticoagulation treatment, early individualized comprehensive rehabilitation can be done for patients with PE to improve their function and activities of daily living.
10.Update on epidemiology, treatment and genetics of purulent meningitis in children
International Journal of Pediatrics 2022;49(8):519-523
Purulent meningitis(PM)is the main reasons of infectious diseases in the central nervous system of children.It is one of the leading causes of neurological sequelae in children.Pathogens are related to region, socioeconomic status, environment, age, etc.The epidemiology has been changing owing to the increasing vaccination coverage rate.Streptococcus pneumoniae, Staphylococcus epidermidis, Escherichia coli and group B Streptococcus are the main pathogens of PM in children.Antibiotics are the main treatment.Corticosteroids are controversial in the treatment of PM.Vaccination is the main method to prevent PM and its complications.With the development of genetics, the genetic variation of immune system has been proved to be related to the susceptibility of PM.This article reviews recent advances in epidemiological changes, treatment, and genetic associations of PM in children.It is helpful for the diagnosis and treatment of PM.


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