1.Anti-inflammatory drugs in the treatment of diabetic nephropathy:a Meta-analysis
Yang ZHAO ; Qingqing WEI ; Xiangyu ZHAN ; Dongrui ZHANG ; Jia LIU ; Song XUE ; Yang ZHANG ; Jiahao DENG ; Hongyu SUI
China Pharmacist 2024;27(4):684-696
Objective To systematically review the efficacy of anti-inflammatory drugs in the treatment of diabetic nephropathy(DN).Methods Databases including PubMed,The Cochrane Library,EMbase,Web of Science,Scopus,Ovid,ProQuest,CBM,CNKI,WanFang Data,VIP and Duxiu data were electronically searched to collect randomized controlled trials(RCTs)of anti-inflammatory drugs for DN from inception to April 5,2022.Two reviewers independently screened the literature,extracted data,and assessed the risk of bias of the included studies.RevMan 5.4 software were then used to perform Meta-analysis.Results A total of 29 literature and 26 RCTs involving 4 095 patients were included.The results of Meta-analysis showed that compared with conventional treatment,conventional treatment combined with anti-inflammatory drugs could effectively reduce urinary albumin to creatinine ratio[SMD=-0.17,95%CI(-0.31,-0.03),P=0.02],urinary albumin excretion rate[SMD=-0.37,95%CI(-0.56,-0.18),P=0.000 1],urinary protein excretion rate[SMD=-0.97,95%CI(-1.29,-0.64),P=0.000 01],and glycosylated hemoglobin[SMD=-0.17,95%CI(-0.27,-0.08),P=0.000 4],while there was no significant difference in reducing serum creatinine[SMD=-0.04,95%CI(-0.19,0.1),P=0.57],urea nitrogen[MD=-0.23,95%CI(-0.50,0.04),P=0.09]and fasting blood glucose[SMD=-0.15,95%CI(-0.32,0.02),P=0.08].There was no statistically significant difference in changing glomerular filtration rate(GFR)[SMD=-0.04,95%CI(-0.15,0.07),P=0.47]with multiple drugs,except for a few drugs.Conclusion Conventional treatment combined with anti-inflammatory drugs can better improve the level of proteinuria in patients with DN,but the improvement of renal function is not obvious.Due to the limitations of the number of included studies and the duration of treatment,the above conclusion needs to be verified by more high-quality studies.
2.Investigating age-related characteristics of gait parameters in community-dwelling older adults during normal walking
Ji SHEN ; Yuting KANG ; Hongyu LI ; Jing PANG ; Jie ZHANG ; Chi ZHANG ; Xue MENG ; Guoqing FAN ; Hong SHI
Chinese Journal of Geriatrics 2024;43(11):1468-1474
Objective:To investigate age-related characteristics of gait parameters in the elderly.Methods:From February 2023 to August 2023, a convenient sampling method was used to investigate the elderly over 60 years old in communities in Beijing.General characteristics and anthropometric data were collected.Gait parameters of the subjects during normal speed walking were measured using a wearable gait analyzer.Comparisons were made of the basic characteristics, physical status and gait parameters in different age groups.Linear regression analysis was used to evaluate the changes of physical status and gait parameters with age, with the 60-69-year-old group as the baseline standard.Results:A total of 670 elderly people were included, including 324(48.4%)aged 60-69 years, 285(42.5%)aged 70-79 years, and 61(9.1%)aged ≥80 years.Linear regression analysis showed that after adjusting for confounding factors, with increasing age, skeletal muscle mass index(SMI)( β=-0.018, 95% CI: -0.029--0.007), calf circumference( β=-0.096, 95% CI: -0.142--0.051), upper limb flexibility( β=-0.200, 95%, 95% CI: -0.355--0.046), lower limb flexibility( β=-0.244, 95% CI: -0.377--0.111), grip strength( β=-0.397, 95% CI: -0.491--0.303), the Short Physical Performance Battery(SPPB)( β=-0.080, 95% CI: -0.100--0.060)decreased( P<0.05), and the gait parameter such as speed( β=-0.010, 95% CI: -0.014--0.007), cadence( β=-0.398, 95% CI: -0.634--0.162), step length/height( β=-0.002, 95% CI: -0.003--0.002), stride length( β=-0.009, 95% CI: -0.011--0.007), swing power( β=-0.009, 95% CI: -0.012--0.006), ground impact( β=-0.020, 95% CI: -0.026--0.014), foot fall( β=-0.050, 95% CI: -0.064--0.036), pre-swing angle( β=-0.545, 95% CI: -0.714--0.377)all decreased( P<0.05), while stride time( β=0.005, 95% CI: 0.001-0.009), single limb support time( β=1.566, 95% CI: 0.499-2.633), terminal double limb support time( β=0.609, 95% CI: 0.084-1.134), swing duration( β=1.288, 95% CI: 0.024-2.552), single step time( β=2.417, 95% CI: 0.462-4.372)and support phase time( β=1.935, 95% CI: 0.421-3.449)all increased( P<0.05). Conclusions:The walking ability tends to decline with age in older people in the community who walk at a normal walking speed.
3.Professor XU Xian's Experience in Treating Flat Warts Based on the Theory of "Bai Qi (白气) Micro-discharge"
Hongyu ZHANG ; Wanting LUO ; Yiping LI ; Qian KONG ; Xue ZENG
Journal of Traditional Chinese Medicine 2024;65(22):2294-2298
This paper summarized the experience in treating flat warts by Professor XU Xian based on the theory of Bai Qi (白气) micro-discharge. Flat warts is considered as a minor skin disease. Wind-damp attacking the exterior and contention between the muscles are the prerequisites for its occurrence, and failure to diffuse due to wei (卫) constraint, and qi discharge to striae and interstices are the core pathogenesis. For treatment, the core principle is to treat minor diseases with minor adjustment, and therefore, the method of dispelling wind and overcoming dampness is used to produce slight sweating and relieve the symptoms, and by taking advantage of the situation, the constraint is unblocked with diffusion and dispersion. Simultaneously, it is paid attention to not over-damaging blood vessels during treatment to avoid causing other symptoms. Self-made Modified Maxing Yigan Decoction (麻杏薏甘汤) is recommended as the basic formula for flat warts, together with self-made Xi You Formula (洗疣方) in external administration to restore defense qi, eliminate pathogenic qi and remove the warts.
4.Effect of exercise intensity on body components and CPET indexes of MS patients:A comparison of two prescribed programs
Ruojiang LIU ; Jinmei QIN ; Weizhen XUE ; Zhi LI ; Feng WANG ; Xiang ZHANG ; Hongyu LIU ; Zhiqiang PEI
The Journal of Practical Medicine 2024;40(19):2678-2684
Objective To compare the effects of two exercise intensities on metabolic syndrome(MS).Methods Forty-nine MS patients hospitalized in Taiyuan Central Hospital from December,2022 to January 2024 were selected and randomly divided into two groups:a standard group(n=24)and individual group(n=25).All patients underwent cardiopulmonary exercise test(CPET)before and after treatment,collecting major indexes including body parameter,body component,and metabolic indicator for prescribing exercise programs.The standard group was trained with exercise intensity prescribed on heart rate reserve,while the individual group received the exercise with intensity prescribed on ventilatory threshold.Both groups received equal energy consumption exercise intervention with the same exercise frequency for 12 weeks.Results The two groups demonstrated significant improvements in waist circumference(WC),body mass index(BMI),body fat related indexes,and systolic blood pressure after intervention(P<0.05).The individual group showed significant improvements inWC,BMI and body fat related indexes as compared to the standard group(P<0.05).Both groups showed significant improvements in peak oxygen uptake,(PeakVO2),peak load power(Peak WR),peak metabolic equivalent(PeakMets),and peak respiratory exchange ratio(Peak RER)after intervention(P<0.05).The individual group presented significant improvements in peak heart rate(HRpeak),peak oxygen pulse(Peak VO2/HR),and maximum voluntary ventilation(MVV)(P<0.05)after intervention.Before intervention,the standard group demonstrated significantly higher levels in PeakVO2 and Peak MET compared to the individual group(P<0.05),but after intervention the two groups showed no significant differences in the two indexes.After the intervention,the individual group demonstrated insignificant improvements in all indexes compared to the standard group(P>0.05).Conclusions Both exercise prescriptions based on CPET can effectively improve the health-related indicators of MS patients on condition of moderate exercise intensity.However,the program prescribed based on individualized ventilatory threshold shows superiority to the program prescribed based on maximum physiological value in improving these indicators.
5.Application effect of a dual release system of androgen and its antagonist in the repair of full-thickness burn wounds in mice
Rizhong HUANG ; Yiwei WANG ; Heyan HUANG ; Ruihan JIANG ; Nannan XUE ; Shaoping YIN ; Hongyu ZHAO
Chinese Journal of Burns 2024;40(2):180-189
Objective:To explore the optimal ratio of dihydrotestosterone and hydroxyflutamide (hereinafter referred to as DH), construct a dual release system of androgen and its antagonist, and analyze the application effect of this system in the repair of full-thickness burn wounds in mice.Methods:This study was an experimental study. The HaCaT cells were divided into blank group (without drug culture), low baseline group, medium baseline group, and high baseline group according to the random number table (the same grouping method below), and the last three groups of cells were cultured by adding three different ratios of DH. Under a medium ratio, the mass of dihydrotestosterone in the three baseline groups from low to high was 1.4, 2.8, and 4.0 μg, respectively, and the mass of hydroxyflutamide was 1.2, 1.6, and 2.0 μg, respectively. On this basis, under a small ratio, the mass of dihydrotestosterone was reduced by half and the mass of hydroxyflutamide was increased by half; under a large ratio, the mass of dihydrotestosterone was increased by half and the mass of hydroxyflutamide was reduced by half. After culture of 2 days, the cell proliferation level was detected by cell counting kit 8 ( n=4). Sixteen 6-8-week-old male BALB/c mice were used to establish a full-thickness burn wound on the back and divided into blank group, small ratio group, medium ratio group, and large ratio group, with 4 mice in each group. On post injury day (PID) 7, normal saline containing different ratios of DH was locally dropped to the wounds of mice in the last three groups of mice (the total mass of DH in the three ratio groups from small to large was 127.5, 165.0, and 202.5 μg, respectively, and the mass ratios of dihydrotestosterone to hydroxyflutamide (hereinafter referred to as drug mass ratio) were 8∶9, 8∶3, and 8∶1, respectively), afterwards, the administration was repeated every 48 hours until PID 27; normal saline was dropped to the wound of mice in blank group at the aforementioned time points. The wound healing status on PID 0 (immediately), 7, 14, 21, and 28 was observed, and the wound healing rates on PID 7, 14, 21, and 28 were calculated ( n=4). On PID 28, the wound tissue was taken, which was stained with hematoxylin and eosin for observing re-epithelialization and with Masson for observing collagen fibers, and the proportion of collagen fibers was analyzed ( n=3). Twenty 6-8-week-old male BALB/c mice were used to establish a full-thickness burn wound on the back and divided into ordinary scaffold group, small proportion scaffold group, medium proportion scaffold group, and large proportion scaffold group (with 5 mice in each group). On PID 7, the wound was continuously dressed with a polycaprolactone scaffold without drug and a polycaprolactone scaffold containing DH with a drug mass ratio of 1∶3, 1∶1, or 3∶1 (i.e. the dual release system of androgen and its antagonist, with total mass of DH being about 1.7 mg) prepared by using electrospinning technology until the end of the experiment. Histopathological analyses of tissue ( n=3) at the same time points as those in the previous animal experiment were performed. On PID 7 and 14, the wound exudates were collected and the relative abundance of bacterial communities was analyzed using 16S ribosomal RNA high-throughput sequencing ( n=3). Results:After culture of 2 days, under a small ratio, the proliferation levels of HaCaT cells in low baseline group and high baseline group were significantly higher than the level in blank group ( P<0.05). As the time after injury prolonged, the wounds of all four groups of mice continued to shrink. On PID 14, the wound healing rate of mice in large ratio group was 72.5% (61.7%, 75.1%), which was close to 53.3% (49.5%, 64.4%) in blank group ( P>0.05); the wound healing rates of mice in small and medium ratio groups were 74.2% (71.0%, 84.2%) and 70.4% (65.1%, 74.4%), respectively, which were significantly higher than the rate in blank group (with both Z values being -2.31, P<0.05). On PID 21, the wound healing rate of mice in small ratio group was significantly higher than that in blank group ( Z=-2.31, P<0.05). On PID 28, the wounds of mice in the three ratio groups were completely re-epithelialized and the epidermis was thicker than that in blank group; compared with that in blank group, the collagen fiber content in the wound tissue of mice in the three ratio groups was higher and arranged more orderly, and the proportions of collagen fibers in the wound tissue of mice in small and large ratio groups were significantly increased ( P<0.05). On PID 28, the wounds of mice in ordinary scaffold group were partially epithelialized, while the wounds of mice in the three proportion scaffold groups were almost completely epithelialized. Among them, the wounds of mice in small proportion scaffold group had the thickest epidermis. The proportion of collagen fibers in the wound tissue of mice in small proportion scaffold group was significantly increased compared with that in ordinary scaffold group ( P<0.05). On PID 7, the bacterial communities with high relative abundance in the wound exudation of mice in the four groups included bacteria of Corynebacterium, Staphylococcus, and Rhodococcus. On PID 14, the bacterial communities with high relative abundance in the wound exudation of mice in the four groups included bacteria of Stenotrophomonas, Rhodococcus, and Staphylococcus, and the number of bacterial species in the wound exudation of mice in the three proportion scaffold groups was more than that in ordinary scaffold group. Conclusions:When the drug mass ratio is relatively small, DH has the effect of promoting the proliferation of HaCaT cells. The ratio of 8∶9 is the optimal mass ratio of dihydrotestosterone to hydroxyflutamide, and DH with this mass ratio can promote re-epithelialization and collagen deposition of full-thickness burn wounds in mice, and promote wound healing. The constructed dual release system of androgen and its antagonist with DH in a 1∶3 drug mass ratio contributes to the re-epithelialization and collagen deposition of the full-thickness burn wounds in mice, and can improve the diversity of wound microbiota.
6.Comparative study of transcriptomics in two murine liver fibrosis models induced by hepatotoxic chemicals
Ruanyu YAN ; Hongyu WU ; Kai HUANG ; Xin SUN ; Jingbo XUE ; Yanyan TAO ; Chenghai LIU ; Yuan PENG
Chinese Journal of Comparative Medicine 2024;34(5):32-45
Objective To assess transcriptomic differences between carbon tetrachloride(CCl4)-induced and diethyl 1,4-dihydro-2,4,6-trimethyl-3,5-pyridinedicarboxylate(DDC)diet-induced mouse models of liver fibrosis to provide a framework for future research using mouse liver fibrosis models.Methods Mouse models of liver fibrosis were induced by a 10% CCl4(2 mL/kg)injection or a 0.1%DDC diet.After 4 weeks of induction,serum levels of ALT,AST,and TBil were measured.HE and Sirius red staining were used to observe hepatic inflammation and collagen deposition.Jamall's method was used to evaluate hydroxyproline(Hyp)content in liver tissues.Hepatic tumor necrosis factor-α(TNF-α),interleukin(IL)-6,and IL-1β were measured by ELISA.Total RNA was extracted from murine liver tissues for RNA-sequencing(RNA-seq).Differentially expressed genes of the two models were analyzed by R software and then GO and KEGG enrichment was performed.Then,genes with significant differences were verified.Results Compared with normal mice,serum levels of ALT,AST,and TBil and hepatic expression of TNF-α,IL-6,and IL-1β were significantly increased in mice that received CCl4 and DDC,while the Alb serum level was decreased.Pathological staining showed that the structures of liver tissues were destroyed and a large number of hepatocytes around the central vein were hyalinized and necrotic in CCl4-treated mice.In DDC diet-treated mice,a large amount of porphyrins had been deposited in the liver and a large number of inflammatory cells had infiltrated into the portal area and bile duct.Different degrees of collagen deposition were observed in the liver tissues of the two model mice.Different genes(DEGs)of CCl4-and DDC diet-treated mice were screened using a filter(|logFC|>2-fold and P<0.05).As a result,1820 and 2373 DEGs in CCl4-and DDC diet-treated mice were analyzed,including 1302 and 1978 upregulated genes,and 518 and 395 downregulated genes,respectively.GO annotation showed that the two models had important functions in molecular function,biological process,and cell component.KEGG analysis showed that 22 and 29 signaling pathways were activated in CCl4-and DDC diet-induced models,respectively.Among them,16 signaling pathways,such as extracellular matrix receptor interaction,cell cycle,protein digestion and absorption,focal adhesion,and PI3K-Akt,were significantly enriched in the two models(P<0.05).Cluster analysis showed that Mup11,Mup15,Mup17,and Mup1 were significantly down-regulated in both models,which were identified by RT-qPCR(P<0.05).Conclusions This study conducted a comparative analysis of the RNA-Seq transcriptomic features of liver fibrosis models induced by exposure to CCl4 and a DDC diet.It examined the gene expression patterns and the pathways influenced by gene expression.The findings serve as a valuable resource for selecting appropriate animal models for future research on the pathogenesis and treatment of liver fibrosis.
7.Experience of Zhu Renkang in Treating Chronic Eczema Based on Ziyin Chushi Decoction
Yiping LI ; Dong SHEN ; Wanting LUO ; Hongyu ZHANG ; Xue ZENG
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(6):171-174
This article summarized Professor Zhu Renkang's experience in treating chronic eczema with Ziyin Chushi Decoction.Professor Zhu Renkang believes that eczema's onset is inseparable from pathogenic dampness.Pathogenic dampness runs through all stages of the disease.Stage of attack is dominated by excessive pathogen.Pathogenic wind attacks the exterior,while the muscular interstices is not dense,which makes nutritive yin leak out and stagnate as pathogenic dampness,then wind and dampness combined with each other.Chronic stage is dominated by yin deficiency.Long-term illness damages healthy qi,and pathogenic dampness conceals in the body,which makes deficiency of nutritive yin inside and dryness outside.Professor Zhu Renkang focuses on the characteristics of chronic eczema characterized by deficiency of yin and retention of dampness pathogens.He establishes Ziyin Chushi Decoction,and emphasizes that nutritive yin and pathogenic dampness have the same origin but different paths and can exist simultaneously.The combined utilization of nourishing yin and eliminating dampness can restore yin without helping dampness,remove dampness without harming yin,which have achieved satisfactory efficacy.
8.Mechanisms and implications in gene polymorphism mediated diverse reponses to sedatives, analgesics and muscle relaxants
Yan SUN ; Hongyu ZHU ; Elham ESMAEILI ; Xue TANG ; Zhilin WU
Korean Journal of Anesthesiology 2023;76(2):89-98
Responses to sedatives, analgesics and muscle relaxants vary among patients under general anesthesia, which could be ascribed to the disparities of clinical characteristics and genetic factors of individuals. Accumulating researches have indicated that gene polymorphisms of the receptors, transporters and metabolizing enzymes associated with anesthetics play a considerable role in their efficacy. However, a systematically summarized study on the mechanisms of gene polymorphisms on pharmacodynamics and pharmacokinetics of anesthetics is still lacking. In this paper, the recent researches on pharmacogenomics of sedatives, analgesics and muscle relaxants are comprehensively reviewed, and the contributions and mechanisms of polymorphisms to the differences of individual efficacy of these drugs are discussed, so as to provide guidance for the formulation of a rational anesthesia regimen for patients with various genotypes.
9.Changes in the zygoma, circumzygomatic sutures, and zygomatic arch in children after trans-sutural distraction osteogenesis
Mengying JIN ; Hongsen BI ; Hongyu XUE ; Zhenmin ZHAO
Chinese Journal of Plastic Surgery 2023;39(7):737-749
Objective:To investigate the changes of the zygoma, circumzygomatic sutures, and zygomatic arch in children after trans-sutural distraction osteogenesis (TSDO).Methods:A retrospective analysis was performed on skull CT data of cleft lip and palate patients who underwent TSDO to correct midfacial hypoplasia between 2005 and 2019 in Peking University Third Hospital. The Mimics 20.0 software was used for three-dimensional(3D) model reconstruction to observe the morphological changes of the zygoma, circumzygomatic sutures, and zygomatic arch at the end of the traction period after TSDO. Measurements were taken and analyzed for the distances from mp point to 3D reference planes, zygoma height, zygoma width 1, zygoma width 2, zygoma thickness, zygoma volume, zygomaticomaxillary suture width, zygomaticotemporal suture width, zygomaticofrontal suture width, zygomatic arch length, and distances from zygomatic arch landmarks (tp point, zy point, and ju point) to the 3D reference planes. All data were divided into cleft and non-cleft sides. GraphPad Prism 9.4.1 software was used to analyze the changes before and after TSDO. Measurement data of normal distribution was expressed by ± s and the comparison between groups before and after traction was analyzed by paired t-test. Measurement data of non-normal distribution was expressed by M(IQR) and the comparison between groups before and after traction was analyzed by paired Wilcoxon test. If P<0.05, the difference was statistically significant. Results:A total of 27 patients were included in the study, including 23 males and 4 females, with a mean age of (11.19±2.35) years (5-15 years). Of these patients, 10 had bilateral cleft lip and palate, and 17 had unilateral cleft lip and palate (9 on the left side and 8 on the right side). The average traction period was (40.26±11.43) days. The midfacial depression of the patients was corrected after TSDO, and the zygoma grew forward, downward, and horizontally. The circumzygomatic sutures shifted forward. The zygomatic arch showed forward and downward growth. The measurements of zygoma showed that the mp point moved forward by (7.82±3.95) mm on the cleft side and 4.26(5.72) mm on the non-cleft side with statistical differences ( P<0.05). The mp point moved slightly downward, and outward after TSDO compared to before surgery, and these differences were statistically significant ( P<0.05). After TSDO, the zygoma height, width, and volume were all increased compared to preoperative levels, and these differences were statistically significant ( P<0.05). The width of the lower part of the zygomatic bone showed the most significant change, increasing by 4.33(5.17) mm on the cleft side and (3.42±2.67) mm on the non-cleft side and these differences were statistically significant ( P<0.05). There was no statistically significant difference in the thickness of the zygoma after TSDO compared to before surgery ( P>0.05). The widths of circumzygomatic sutures were all increased after TSDO compared to before surgery, and these differences were statistically significant ( P<0.05). The width of zygomaticofrontal suture showed the greatest increase and the width of zygomaticomaxillary suture showed the smallest increase. The length of the zygomatic arch increased after TSDO compared to before surgery, with an increase of (4.78±2.71) mm on the cleft side and (2.03±1.48) mm on the non-cleft side, and these differences were statistically significant ( P<0.05). There was no statistically significant difference in the position of the tp point after TSDO compared to before surgery ( P>0.05), while the position of the zy point and the ju point moved significantly forward and downward, and these differences were statistically significant ( P<0.05). In the horizontal direction, there was no statistically significant difference in the position of the zy point and ju point after TSDO compared to before surgery ( P>0.05). Conclusion:After TSDO, the zygoma shows three-dimensional growth with significant increases in height, width, and volume. The position of zygoma moves forward, downward, and outward. The circumzygomatic sutures widen due to the distraction force, and the zygomatic arch grows forward and downward, with an increase in length.
10.Changes in the zygoma, circumzygomatic sutures, and zygomatic arch in children after trans-sutural distraction osteogenesis
Mengying JIN ; Hongsen BI ; Hongyu XUE ; Zhenmin ZHAO
Chinese Journal of Plastic Surgery 2023;39(7):737-749
Objective:To investigate the changes of the zygoma, circumzygomatic sutures, and zygomatic arch in children after trans-sutural distraction osteogenesis (TSDO).Methods:A retrospective analysis was performed on skull CT data of cleft lip and palate patients who underwent TSDO to correct midfacial hypoplasia between 2005 and 2019 in Peking University Third Hospital. The Mimics 20.0 software was used for three-dimensional(3D) model reconstruction to observe the morphological changes of the zygoma, circumzygomatic sutures, and zygomatic arch at the end of the traction period after TSDO. Measurements were taken and analyzed for the distances from mp point to 3D reference planes, zygoma height, zygoma width 1, zygoma width 2, zygoma thickness, zygoma volume, zygomaticomaxillary suture width, zygomaticotemporal suture width, zygomaticofrontal suture width, zygomatic arch length, and distances from zygomatic arch landmarks (tp point, zy point, and ju point) to the 3D reference planes. All data were divided into cleft and non-cleft sides. GraphPad Prism 9.4.1 software was used to analyze the changes before and after TSDO. Measurement data of normal distribution was expressed by ± s and the comparison between groups before and after traction was analyzed by paired t-test. Measurement data of non-normal distribution was expressed by M(IQR) and the comparison between groups before and after traction was analyzed by paired Wilcoxon test. If P<0.05, the difference was statistically significant. Results:A total of 27 patients were included in the study, including 23 males and 4 females, with a mean age of (11.19±2.35) years (5-15 years). Of these patients, 10 had bilateral cleft lip and palate, and 17 had unilateral cleft lip and palate (9 on the left side and 8 on the right side). The average traction period was (40.26±11.43) days. The midfacial depression of the patients was corrected after TSDO, and the zygoma grew forward, downward, and horizontally. The circumzygomatic sutures shifted forward. The zygomatic arch showed forward and downward growth. The measurements of zygoma showed that the mp point moved forward by (7.82±3.95) mm on the cleft side and 4.26(5.72) mm on the non-cleft side with statistical differences ( P<0.05). The mp point moved slightly downward, and outward after TSDO compared to before surgery, and these differences were statistically significant ( P<0.05). After TSDO, the zygoma height, width, and volume were all increased compared to preoperative levels, and these differences were statistically significant ( P<0.05). The width of the lower part of the zygomatic bone showed the most significant change, increasing by 4.33(5.17) mm on the cleft side and (3.42±2.67) mm on the non-cleft side and these differences were statistically significant ( P<0.05). There was no statistically significant difference in the thickness of the zygoma after TSDO compared to before surgery ( P>0.05). The widths of circumzygomatic sutures were all increased after TSDO compared to before surgery, and these differences were statistically significant ( P<0.05). The width of zygomaticofrontal suture showed the greatest increase and the width of zygomaticomaxillary suture showed the smallest increase. The length of the zygomatic arch increased after TSDO compared to before surgery, with an increase of (4.78±2.71) mm on the cleft side and (2.03±1.48) mm on the non-cleft side, and these differences were statistically significant ( P<0.05). There was no statistically significant difference in the position of the tp point after TSDO compared to before surgery ( P>0.05), while the position of the zy point and the ju point moved significantly forward and downward, and these differences were statistically significant ( P<0.05). In the horizontal direction, there was no statistically significant difference in the position of the zy point and ju point after TSDO compared to before surgery ( P>0.05). Conclusion:After TSDO, the zygoma shows three-dimensional growth with significant increases in height, width, and volume. The position of zygoma moves forward, downward, and outward. The circumzygomatic sutures widen due to the distraction force, and the zygomatic arch grows forward and downward, with an increase in length.

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