1.Clinical efficacy and safety of dot-matrix microneedles radiofrequency sequential narrow-spectrum intense pulsed light in treatment of facial photoaging
Yating XU ; Mingzhi FENG ; Shanshan LI ; Minzhi WU ; Jingjing LI
Chinese Journal of Medical Aesthetics and Cosmetology 2024;30(6):532-535
Objective:To evaluate the clinical effectiveness and safety of fractional microneedle radiofrequency (RF), subsequently followed by narrowband intense pulsed light (IPL), in the treatment of facial photoaging.Methods:A retrospective analysis was performed on 50 female patients who underwent facial photodamage treatment at the Fifth People's Hospital of Suzhou from January to December 2021, with an average age of (40±8) years. Each patient received fractional microneedle RF therapy, subsequently followed by two sessions of narrowband IPL therapy at 500-600 nm, with a 4-week interval between treatments. Before and 4 weeks after the final treatment, skin parameters including wrinkles, redness, and sunspots were quantitatively assessed using the Visia skin image analyzer. Patients self-reported their satisfaction levels, and any adverse reactions were recorded.Results:All patients completed the prescribed treatment regimen. Post-treatment evaluations revealed marked improvements in facial skin, characterized by reduced wrinkles, enhanced skin smoothness, tighter contours, and lighter pigmentation spots. Specifically, the pre-treatment scores for wrinkles, sunspots, and redness were (25.6±10.2), (312.6±75.9), and (162.0±68.6) scores, respectively, which significantly decreased to (18.3±7.4), (261.2±82.7), and (129.7±60.1) scores four weeks post-treatment (all P<0.001). The patients' satisfaction levels were (6.6±1.2) scores. During treatment, all patients experienced mild erythema and edema, which resolved within 3-4 days. No serious adverse reactions, such as blistering, hyperpigmentation, or scarring, were observed. Conclusions:Fractional microneedle RF therapy, followed by narrowband IPL therapy, emerges as an effective and safe treatment option for facial photodamage, with minimal adverse reactions.
2.Construction of a variety of fusion gene probes for soft tissue sarcoma based on TaqMan technique and their clinical diagnostic applications
Shunping CHEN ; Yuan WU ; Shaojun HONG ; Qiang LI ; Jianming WENG ; Zongkai ZOU ; Mingzhi CAI
Chinese Journal of Clinical and Experimental Pathology 2024;40(10):1045-1051
Purpose To design PCR combined probes u-sing TaqMan technology to detect the expression of major driver genes in a variety of soft tissue sarcomas at one time,and to dis-cuss whether the combined probes can better assist clinicopatho-logical diagnosis based on histological features and FISH results.Methods Our research group designed 32 pairs of fusion gene probes related to soft tissue sarcoma based on TaqMan tech-nique,involving 10 types of sarcoma.The histopathological specimens of 70 patients with common fusion gene soft tissue sarcoma in our hospital were examined by fusion gene combina-tion,and the histopathological specimens of 30 patients with oth-er soft tissue sarcoma without fusion gene were set as controls.Individual common sarcoma types were analyzed with FISH probe detection.At the same time,the detection performance of the combined probe was evaluated by various methods.Results The soft tissue sarcoma-related fusion gene probe designed by our research group was used to detect the confirmed soft tissue sarcomas,and the results showed that the highest sensitivity was 100%.Among the three types of tumors,protuberant dermatofi-brosarcoma,synovial sarcoma and mucinous liposarcoma were verified by FISH,and the coincidence rate of the two methods was high,with no statistical significance(P>0.05).The re-sults of interlot and intralot reproducibility of protuberous derma-tofibrosarcoma,mucinous liposarcoma and synovial sarcoma were consistent.Three different concentration limits were used to de-tect the positive plasmid of all the fused gene RNA,and 25 cop-ies/μL was the lowest concentration limit.Conclusion Com-bined with the pathological diagnosis results,TaqMan technology can be used to design PCR combined probes for soft tissue sarco-ma,which have high sensitivity and high specificity and good methodological performance,and meet the needs of primary medical institutions for one-time and rapid auxiliary pathological diagnosis of common soft tissue sarcoma.It provides a rapid and reliable method for the detection of multiple fusion genes in clin-ical soft tissue sarcoma.
3.Immunomodulatory mechanism of umbilical cord mesenchymal stem cells modified by miR-125b-5p in systemic lupus erythematosus
Zhihui WU ; Mingzhi HU ; Qiaoying ZHAO ; Fengfeng LV ; Jingying ZHANG ; Wei ZHANG ; Yongfu WANG ; Xiaolin SUN ; Hui WANG
Journal of Peking University(Health Sciences) 2024;56(5):860-867
Objective:To investigate the mechanism of immunomodulatory effects of umbilical cord mesenchymal stem cells(UC-MSCs)modified by miR-125b-5p on systemic lupus erythematosus(SLE).Methods:The expression level of miR-125b-5p was detected by real-time fluorescence quantitative PCR in UC-MSCs and peripheral blood mononuclear cells(PBMCs)from SLE patients and health checkers.Annexin V-FITC/PI apoptosis detection kit was used to detect the effect of miR-125b-5p on apoptosis of UC-MSCs.MRL/lpr mice in each group were injected with UC-MSCs via tail vein,and T-lymphocyte subsets in the spleen of the MRL/lpr mice were detected by flow cytometry after 5 weeks.The expression levels of interleukin(IL)-4 and IL-17A in serum of MRL/lpr mice were detected by ELISA.Hematoxylin-eosin staining was used to observe the pathological manifestations of the lungs and kidneys of the MRL/lpr mice.Results:miR-125b-5p was significantly down-regulated in PBMCs of SLE patients compared with healthy controls(P<0.01).Compared with the UC-MSCs group,the expression of miR-125b-5p in UC-MSCs modified by miR-125b-5p group was increased(P<0.01).The survival rate of UC-MSCs was significantly increased by miR-125b-5p(P<0.01).Compared with the untreated group of MRL/lpr mice,the expression level of IL-4 in serum was increased(P<0.05);the expression level of IL-17A was decreased(P<0.05);the proportion of Th17 cells in the spleen of MRL/lpr mice was decreased(P<0.05);the inflammatory cells infiltration and micro-thrombosis of lungs and kidneys of MRL/lpr mice were significantly reduced in the UC-MSCs modified by miR-125b-5p treatment group.Conclusion:UC-MSCs modified by miR-125b-5p have immunomodulatory effects on systemic lupus erythematosus.
4.Neurophilic herpesvirus: a powerful tool for neuroscience research.
Mingzhi LI ; Li PAN ; Hongxia WU ; Huaji QIU ; Yimin WANG ; Yuan SUN
Chinese Journal of Biotechnology 2023;39(1):7-18
Viruses are powerful tools for the study of modern neurosciences. Most of the research on the connection and function of neurons were done by using recombinant viruses, among which neurotropic herpesvirus is one of the most important tools. With the continuous development of genetic engineering and molecular biology techniques, several recombinant neurophilic herpesviruses have been engineered into different viral tools for neuroscience research. This review describes and discusses several common and widely used neurophilic herpesviruses as nerve conduction tracers, viral vectors for neurological diseases, and lytic viruses for neuro-oncology applications, which provides a reference for further exploring the function of neurophilic herpesviruses.
Herpesviridae/genetics*
;
Neurosciences
;
Genetic Vectors/genetics*
;
Genetic Engineering
;
Neurons
5.Immunomodulatory effect of miR⁃125b⁃5p modified umbilical cord mesenchymal stem cells mediated JAK2/STAT3 signaling pathway on systemic lupus erythematosus
Zhihui Wu ; Lili Ding ; Mingzhi Hu ; Yongfu Wang ; Hui Wang ; Wei Zhang ; Xiaolin Sun
Acta Universitatis Medicinalis Anhui 2023;58(1):28-36
Objective :
To investigate the imunomodulatory effects of umbilical cord mesenchymal stem cells(UC⁃MSCs) modified by miR⁃125b⁃5p through JAK2/STAT3 pathway on systemic lupus erythematosus(SLE) .
Methods:
UC⁃MSCs were isolated and cultured under aseptic conditions ; Peripheral blood mononuclear cells (
PBMCs)were separated from SLE patients by density gradient centrifugation. The relative expressions of IL⁃17A , Foxp3 ,IFN⁃γ , IL⁃4 genes in PBMCs cultured with UC⁃MSCs for 48 h were detected by RT⁃qPCR; The relative expressions of JAK2 , p ⁃JAK2 , STAT3 , p ⁃STAT3 and IL⁃18 proteins in kidney tissues of MRL/lpr mice were detected by west⁃ern blot.
Results :
Compared with the PBMCs culture group , the expression of IFN⁃γ and IL⁃17A and the propor⁃tion of Th17/Treg cells were significantly down⁃regulated in UC⁃MSCs + miR⁃125b⁃5p group , UC⁃MSCs + miR⁃NC group and UC⁃MSCs group(P < 0. 01) , the expression of the proportion of Th1/Th2 cells (P < 0. 05) was down⁃regulated in UC⁃MSCs + miR⁃125b⁃5p group and UC⁃MSCs + miR⁃NC group ; Compared with the untreated group of MRL/lpr mice , the relative expressions of JAK2 , p ⁃JAK2 , STAT3 , p ⁃STAT3 and IL⁃18 proteins in kidney tissues of MRL/lpr mice were significantly down⁃regulated in UC⁃MSCs + miR⁃125b⁃5p group (P < 0. 01) , and the rela⁃tive expressions of IL⁃18 proteins was significantly
down⁃regulated in UC⁃MSCs + miR⁃NC group and UC⁃MSCs group (P < 0. 01) .
Conclusion
miR⁃125b⁃5p plays a synergistic role in UC⁃MSCs ,which regulates the differenti⁃ation of Th2 cells in PBMCs of SLE patients and the relative expressions of p ⁃JAK2/JAK2 , p ⁃STAT3/STAT3 , and IL⁃18 proteins in kidney tissues of MRL/lpr mice. UC⁃MSCs modified by miR⁃125b⁃5p may play
immunomodulato⁃ry effect on SLE by JAK2/STAT3 signaling pathway.
6.Baseline Total Metabolic Tumor Volume and Total Lesion Glycolysis Measured on 18F-FDG PET-CT Predict Outcomes in T-Cell Lymphoblastic Lymphoma
Xiaoyan FENG ; Xin WEN ; Ling LI ; Zhenchang SUN ; Xin LI ; Lei ZHANG ; Jingjing WU ; Xiaorui FU ; Xinhua WANG ; Hui YU ; Xinran MA ; Xudong ZHANG ; Xinli XIE ; Xingmin HAN ; Mingzhi ZHANG
Cancer Research and Treatment 2021;53(3):837-846
Purpose:
There is no optimal prognostic model for T-cell lymphoblastic lymphoma (T-LBL). Here, we discussed the predictive value of total metabolic tumor volume (TMTV) and total lesion glycolysis (TLG) measured on 18F-fluorodeoxyglucose positron emission tomography–computed tomography (PET-CT) in T-LBL.
Materials and Methods:
Thirty-seven treatment naïve T-LBL patients with PET-CT scans were enrolled. TMTV was obtained using the 41% maximum standardized uptake value (SUVmax) threshold method, and TLG was measured as metabolic tumor volume multiplied by the mean SUV. Progression-free survival (PFS) and overall survival (OS) were analyzed by Kaplan-Meier curves and compared by the log-rank test.
Results:
The optimal cutoff values for SUVmax, TMTV, and TLG were 12.7, 302 cm3, and 890, respectively. A high SUVmax, TMTV, and TLG indicated a shorten PFS and OS. On multivariable analysis, TMTV ≥ 302 cm3, and central nervous system (CNS) involvement predicted inferior PFS, while high SUVmax, TLG and CNS involvement were associated with worse OS. Subsequently, we generated a risk model comprising high SUVmax, TMTV or TLG and CNS involvement, which stratified the population into three risk groups, which had significantly different median PFS of not reached, 14 months, and 7 months for low-risk group, mediate-risk group, and high-risk group, respectively (p < 0.001). Median OS were not reached, 27 months, and 13 months, respectively (p < 0.001).
Conclusion
Baseline SUVmax, TMTV, and TLG measured on PET-CT are strong predictors of worse outcome in T-LBL. A risk model integrating these three parameters with CNS involvement identifies patients at high risk of disease progression.
7.Clinical features of hepatic myelopathy: An analysis of 562 cases
Mingzhi YANG ; Dan WU ; Liang TANG ; Liangzhi WEN ; Dongfeng CHEN ; Hongli CUI
Journal of Clinical Hepatology 2021;37(1):115-119
ObjectiveTo investigate the clinical features of patients with hepatic myelopathy (HM) in China. MethodsThe articles on HM, published in China from January 2009 to December 2018, were collected to analyze the clinical features, laboratory examination results, diagnosis, treatment, and prognosis of HM patients. ResultsA total of 94 articles were included, with 562 patients in total, among whom there were 489 male patients and 73 female patients. Their age ranged from 17-81 years, with a mean age of 46.3±17.5 years. Hepatitis B cirrhosis was the most common etiology (64.4%), followed by alcoholic cirrhosis (10.3%) and hepatitis C cirrhosis (9.2%). The clinical manifestations of HM mainly included decline of muscle strength (89.50%), tendon hyperreflexia (76.87%), ataxia, and movement disorder (76.51%). Laboratory examination showed an increase in blood ammonia by 92.31% and a reduction in albumin by 88.96%. Imaging diagnosis mainly depended on electromyography (64.92%) and spinal cord MRI (22.82%), and abdominal color Doppler ultrasound, CT, or MRI alone has limited clinical value. After comprehensive medical treatment, no patient (0%) was cured, 106 patients (18.86%) were improved, 211 patients (37.54%) had no response, 31 patients (5.52%) worsened, 129 patients (22.95%) died, and 53 patients (9.43%) were not explained. A total of 39 patients underwent liver transplantation, with an improvement rate of 5641%. ConclusionHM is a rare complication of end-stage liver disease and is mainly observed in middle-aged men. It has the main manifestation of chronic and progressive spastic paraplegia of both lower limbs. Currently, there is no effective treatment method, and liver transplantation is feasible for some patients, with poor treatment response and poor prognosis.
8.Baseline Total Metabolic Tumor Volume and Total Lesion Glycolysis Measured on 18F-FDG PET-CT Predict Outcomes in T-Cell Lymphoblastic Lymphoma
Xiaoyan FENG ; Xin WEN ; Ling LI ; Zhenchang SUN ; Xin LI ; Lei ZHANG ; Jingjing WU ; Xiaorui FU ; Xinhua WANG ; Hui YU ; Xinran MA ; Xudong ZHANG ; Xinli XIE ; Xingmin HAN ; Mingzhi ZHANG
Cancer Research and Treatment 2021;53(3):837-846
Purpose:
There is no optimal prognostic model for T-cell lymphoblastic lymphoma (T-LBL). Here, we discussed the predictive value of total metabolic tumor volume (TMTV) and total lesion glycolysis (TLG) measured on 18F-fluorodeoxyglucose positron emission tomography–computed tomography (PET-CT) in T-LBL.
Materials and Methods:
Thirty-seven treatment naïve T-LBL patients with PET-CT scans were enrolled. TMTV was obtained using the 41% maximum standardized uptake value (SUVmax) threshold method, and TLG was measured as metabolic tumor volume multiplied by the mean SUV. Progression-free survival (PFS) and overall survival (OS) were analyzed by Kaplan-Meier curves and compared by the log-rank test.
Results:
The optimal cutoff values for SUVmax, TMTV, and TLG were 12.7, 302 cm3, and 890, respectively. A high SUVmax, TMTV, and TLG indicated a shorten PFS and OS. On multivariable analysis, TMTV ≥ 302 cm3, and central nervous system (CNS) involvement predicted inferior PFS, while high SUVmax, TLG and CNS involvement were associated with worse OS. Subsequently, we generated a risk model comprising high SUVmax, TMTV or TLG and CNS involvement, which stratified the population into three risk groups, which had significantly different median PFS of not reached, 14 months, and 7 months for low-risk group, mediate-risk group, and high-risk group, respectively (p < 0.001). Median OS were not reached, 27 months, and 13 months, respectively (p < 0.001).
Conclusion
Baseline SUVmax, TMTV, and TLG measured on PET-CT are strong predictors of worse outcome in T-LBL. A risk model integrating these three parameters with CNS involvement identifies patients at high risk of disease progression.
9. Outcomes of 33 patients with anaplastic large cell lymphoma treated after hematopoietic stem cell transplantation
Ning LU ; Xiaofan LI ; Yujun DONG ; Yini WANG ; Xiaorui FU ; Yamei WU ; Yuhang LI ; Maihong WANG ; Nainong LI ; Hanyun REN ; Zhao WANG ; Mingzhi ZHANG ; Xiaoxiong WU ; Liangding HU ; Yao LIU ; Wenrong HUANG
Chinese Journal of Hematology 2020;41(2):117-122
Objective:
To explore the efficacy and prognostic factors of hematopoietic stem cell transplantation (HSCT) for the treatment of patients with anaplastic large cell lymphoma (ALCL) .
Methods:
The clinical records of 33 ALCL patients after HSCT were collected and analyzed retrospectively to evaluate the rates of overall survival (OS) and recurrence after autologous (auto-HSCT) and allogeneic HSCT (allo-HSCT) and the factors influencing prognosis.
Results:
The median-age of this cohort of 33 ALCL cases at diagnosis was 31 (12-57) years old with a male/female ratio of 23/10, 24 cases (72.7%) were ALK+ and 9 ones (27.3%) ALK-. Of them, 25 patients (19 ALK+ and 6 ALK-) underwent auto-HSCT and 8 cases (5 ALK+ and 3ALK-) allo-HSCT with a median follow-up of 18.7 (4.0-150.0) months. Disease states before HSCT were as follows: only 6 patients achieved CR status and received auto-HSCT, 16 patients achieved PR (14 cases by auto-HSCT and 2 ones allo-HSCT) , the rest 11 cases were refractory/relapse (5 cases by auto-HSCT and 6 ones allo-HSCT) . There were 7 cases died of disease progression (5 after auto-HSCT and 2 allo-HSCT) and 5 cases treatment-related mortality (TRM) (2 after auto-HSCT and 3 allo-HSCT) , TRM of two groups were 8.0% and 37.5%, respectively. Both the median progression-free survival (PFS) and OS were 15 months after auto-HSCT, the median PFS and OS after allo-HSCT were 3.7 (1.0-90.0) and 4.6 (1.0-90.0) months, respectively. There was no statistically significant difference in terms of survival curves between the two groups (OS and PFS,
10.Association of dominant eye and non-dominant eye with severity of chronic primary angle-closure glaucoma
Chukai HUANG ; Qiang WANG ; Mingzhi ZHANG ; Lifang LIU ; Zhenggen WU ; Di MA
Chinese Journal of Experimental Ophthalmology 2020;38(5):410-414
Objective:To investigate the association of ocular dominance with the severity of chronic primary angle-closure glaucoma (PACG).Methods:Ocular dominance was assessed via the " hole in card" method.The anatomical symmetry (including anterior chamber depth, lens thickness and axial length) in both eyes was analyzed via A scan ultrasound.The severely glaucomatous eye was determined by the mean defect of visual field.The association of ocular dominance with the severity of chronic PACG was then analyzed.This study followed the Declaration of Helsinki, and the study protocol was approved by the Ethics Committee of Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong.Written informed consent was obtained from all subjects prior to their entering the study cohort.Results:Visual acuity (LogMAR) was 0.39±0.24 in the dominant eye group, and 0.43±0.29 in the non-dominant eye group.Anterior chamber depth was (2.53±0.26)mm in the dominant eye group, and (2.54±0.29)mm in the non-dominant eye group.Lens thickness was (4.96±0.31)mm in the dominant eye group, and (4.92±0.33)mm in the non-dominant eye group.Axial length was (22.58±0.61)mm in the dominant eye group, and (22.73±1.11)mm in the non-dominant eye group.No significant difference was found in visual acuity, anterior chamber depth, lens thickness or axial length between the dominant and non-dominant eye groups ( t=-1.643, -0.797, 1.867, -1.345; all at P>0.05). The vertical cup-disc ratio of the dominant eye group was lower than that of the non-dominant eye group (0.55 [0.40, 0.80] vs. 0.80 [0.63, 0.90]). The mean defect in the visual field of the dominant eye group was lower than that in the non-dominant eye group (-6.54 [-16.70, -3.85]dB vs.-18.77 [-28.19, -8.55]dB), and the intraocular pressure in the dominant eye group was lower than that in the non-dominant eye group (21.00 [17.00, 27.75]mmHg vs. 24.50 [19.00, 36.25]mmHg) (1 mmHg=0.133 kPa). Significant differences were found in mean defect, vertical cup-disc ratio and intraocular pressure between the two groups ( Z=-3.781, -3.528, -2.126; all at P<0.05). The ratio of the severely glaucomatous eye being the non-dominant eye was 84.09%, which was much higher than that of the severely glaucomatous eye being the dominant eye (15.91%). The non-dominant eye was related to the severity of chronic PACG ( χ2=40.909, P<0.001, Pearson contingency coefficient r=0.563). Conclusions:The non-dominant eye is associated with the severity of chronic PACG.


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