1.Clinical efficacy of acupuncture on mild cognitive impairment and its effect on gut microbiota.
Peng JIANG ; Fen HU ; Mian LIN ; Jianfang ZHU
Chinese Acupuncture & Moxibustion 2025;45(7):903-910
OBJECTIVE:
To observe the clinical efficacy of acupuncture on mild cognitive impairment (MCI) and its effect on gut microbiota.
METHODS:
A total of 62 MCI patients were randomly divided into an experimental group (31 cases, 2 cases dropped out) and a control group (31 cases). Both groups received exercise and cognitive training. In addition, the experimental group underwent acupuncture treatment at acupoints including Baihui (GV20), Sishencong (EX-HN1), and bilateral Fengchi (GB20), Xuanzhong (GB39), Zusanli (ST36), Yanglao (SI6), Xinshu (BL15), and etc., once every other day, three times per week, for a total of 12 weeks. Before and after treatment, the Montreal cognitive assessment (MoCA) and mini-mental state examination (MMSE) scores were evaluated in the two groups, changes in gut microbiota were detected using 16S rDNA sequencing technology. The clinical efficacy was assessed after treatment.
RESULTS:
Compared before treatment, MoCA and MMSE scores were increased in both groups after treatment (P<0.001), with higher scores in the experimental group than those in the control group (P<0.001, P<0.05). After treatment, the relative abundance of Faecalibacterium, Clostridia, and Ruminococcaceae was increased in the experimental group compared with that before treatment (P<0.05). Moreover, the relative abundance of Faecalibacterium in the experimental group was higher than that in the control group (P<0.05). The total effective rate was 82.8% (24/29) in the experimental group, which was higher than 61.3% (19/31) in the control group (P<0.05).
CONCLUSION
Acupuncture could improve cognitive dysfunction in patients with MCI, and its mechanism may be related to increasing the relative abundance of butyrate-producing bacteria such as Faecalibacterium, Clostridia, and Ruminococcaceae, maintaining the intestinal barrier, and inhibiting related inflammatory responses.
Humans
;
Acupuncture Therapy
;
Gastrointestinal Microbiome
;
Cognitive Dysfunction/psychology*
;
Male
;
Female
;
Aged
;
Middle Aged
;
Acupuncture Points
;
Treatment Outcome
;
Aged, 80 and over
;
Cognition
2.Effect of interferon induced transmembrane protein 1 ( IFITM1 ) upregulation to cytokine release syndrome in CAR-T-treated B-cell acute lymphoblastic leukemia.
Mengyi DU ; Yinqiang ZHANG ; Chenggong LI ; Fen ZHOU ; Wenjing LUO ; Lu TANG ; Jianghua WU ; Huiwen JIANG ; Qiuzhe WEI ; Cong LU ; Haiming KOU ; Yu HU ; Heng MEI
Chinese Medical Journal 2025;138(10):1242-1244
3.Analysis of Hormone Levels in Patients with Hematological Diseases Before and After Hematopoietic Stem Cell Tansplantation.
Fen LI ; Yu-Jin LI ; Jie ZHAO ; Zhi-Xiang LU ; Xiao-Li GAO ; Hai-Tao HE ; Xue-Zhong GU ; Feng-Yu CHEN ; Hui-Yuan LI ; Qi SA ; Lin ZHANG ; Peng HU
Journal of Experimental Hematology 2025;33(5):1443-1452
OBJECTIVE:
By analyzing the hormone secretion of the adenohypophysis, thyroid glands, gonads, and adrenal cortex in patients with hematological diseases before and after hematopoietic stem cell transplantation (HSCT), this study aims to preliminarily explore the effect of HSCT on patients' hormone secretion and glandular damage.
METHODS:
The baseline data of 209 hematological disease patients who underwent HSCT in our hospital from January 2019 to December 2023, as well as the data on the levels of hormones secreted by the adenohypophysis, thyroid glands, gonads and adrenal cortex before and after HSCT were collected, and the changes in hormone levels before and after transplantation were analyzed.
RESULTS:
After allogeneic HSCT, the levels of thyroid-stimulating hormone (TSH), triiodothyronine (T3), free triiodothyronine (FT3) and estradiol (E2) decreased, while the levels of luteinizing hormone (LH) and follicle- stimulating hormone (FSH) increased. The T3 level of patients with decreased TSH after transplantation was lower than that of those with increased TSH after transplantation. In female patients, the levels of prolactin (PRL), progesterone (Prog), and testosterone (Testo) decreased after HSCT. Testo and PRL decreased when there was a donor-recipient sex mismatch, and the levels of adrenocorticotropic hormone (ACTH) and cortisol (COR) decreased when the HLA matching was haploidentical. The levels of T3, FT3, and PRL decreased after autologous HSCT. In allogeneic HSCT patients, the levels of TSH, T4, T3, FT3, and ACTH in the group with graft-versus-host disease (GVHD) were significantly lower than those in the group without GVHD. Logistic regression analysis showed the changes in hormone levels after transplantation were not correlated with factors such as the patient's sex, age, or whether the blood types of the donor and the recipient are the same.
CONCLUSION
HSCT can affect the endocrine function of patients with hematological diseases, mainly affecting target glandular organs such as the thyroid, gonads, and adrenal glands, while the secretory function of the adenohypophysis is less affected.
Humans
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Hematopoietic Stem Cell Transplantation
;
Female
;
Male
;
Hematologic Diseases/blood*
;
Follicle Stimulating Hormone/blood*
;
Triiodothyronine/blood*
;
Luteinizing Hormone/blood*
;
Thyroid Gland/metabolism*
;
Estradiol/blood*
;
Thyrotropin/blood*
;
Gonads/metabolism*
;
Adult
;
Middle Aged
;
Adrenocorticotropic Hormone/blood*
;
Hormones/metabolism*
;
Adrenal Cortex/metabolism*
;
Prolactin
4.Astragaloside IV Alleviates Podocyte Injury in Diabetic Nephropathy through Regulating IRE-1α/NF-κ B/NLRP3 Pathway.
Da-Lin SUN ; Zi-Yi GUO ; Wen-Yuan LIU ; Lin ZHANG ; Zi-Yuan ZHANG ; Ya-Ling HU ; Su-Fen LI ; Ming-Yu ZHANG ; Guang ZHANG ; Jin-Jing WANG ; Jing-Ai FANG
Chinese journal of integrative medicine 2025;31(5):422-433
OBJECTIVE:
To investigate the effects of astragaloside IV (AS-IV) on podocyte injury of diabetic nephropathy (DN) and reveal its potential mechanism.
METHODS:
In in vitro experiment, podocytes were divided into 4 groups, normal, high glucose (HG), inositol-requiring enzyme 1 (IRE-1) α activator (HG+thapsigargin 1 µmol/L), and IRE-1α inhibitor (HG+STF-083010, 20 µmol/L) groups. Additionally, podocytes were divided into 4 groups, including normal, HG, AS-IV (HG+AS-IV 20 µmol/L), and IRE-1α inhibitor (HG+STF-083010, 20 µmol/L) groups, respectively. After 24 h treatment, the morphology of podocytes and endoplasmic reticulum (ER) was observed by electron microscopy. The expressions of glucose-regulated protein 78 (GRP78) and IRE-1α were detected by cellular immunofluorescence. In in vivo experiment, DN rat model was established via a consecutive 3-day intraperitoneal streptozotocin (STZ) injections. A total of 40 rats were assigned into the normal, DN, AS-IV [AS-IV 40 mg/(kg·d)], and IRE-1α inhibitor [STF-083010, 10 mg/(kg·d)] groups (n=10), respectively. The general condition, 24-h urine volume, random blood glucose, urinary protein excretion rate (UAER), urea nitrogen (BUN), and serum creatinine (SCr) levels of rats were measured after 8 weeks of intervention. Pathological changes in the renal tissue were observed by hematoxylin and eosin (HE) staining. Quantitative reverse transcription-polymerase chain reaction (RT-PCR) and Western blot were used to detect the expressions of GRP78, IRE-1α, nuclear factor kappa Bp65 (NF-κBp65), interleukin (IL)-1β, NLR family pyrin domain containing 3 (NLRP3), caspase-1, gasdermin D-N (GSDMD-N), and nephrin at the mRNA and protein levels in vivo and in vitro, respectively.
RESULTS:
Cytoplasmic vacuolation and ER swelling were observed in the HG and IRE-1α activator groups. Podocyte morphology and ER expansion were improved in AS-IV and IRE-1α inhibitor groups compared with HG group. Cellular immunofluorescence showed that compared with the normal group, the fluorescence intensity of GRP78 and IRE-1α in the HG and IRE-1α activator groups were significantly increased whereas decreased in AS-IV and IRE-1α inhibitor groups (P<0.05). Compared with the normal group, the mRNA and protein expressions of GRP78, IRE-1α, NF-κ Bp65, IL-1β, NLRP3, caspase-1 and GSDMD-N in the HG group was increased (P<0.05). Compared with HG group, the expression of above indices was decreased in the AS-IV and IRE-1α inhibitor groups, and the expression in the IRE-1α activator group was increased (P<0.05). The expression of nephrin was decreased in the HG group, and increased in AS-IV and IRE-1α inhibitor groups (P<0.05). The in vivo experiment results revealed that compared to the normal group, the levels of blood glucose, triglyceride, total cholesterol, BUN, blood creatinine and urinary protein in the DN group were higher (P<0.05). Compared with DN group, the above indices in AS-IV and IRE-1α inhibitor groups were decreased (P<0.05). HE staining revealed glomerular hypertrophy, mesangial widening and mesangial cell proliferation in the renal tissue of the DN group. Compared with the DN group, the above pathological changes in renal tissue of AS-IV and IRE-1α inhibitor groups were alleviated. Quantitative RT-PCR and Western blot results of GRP78, IRE-1α, NF-κ Bp65, IL-1β, NLRP3, caspase-1 and GSDMD-N were consistent with immunofluorescence analysis.
CONCLUSION
AS-IV could reduce ERS and inflammation, improve podocyte pyroptosis, thus exerting a podocyte-protective effect in DN, through regulating IRE-1α/NF-κ B/NLRP3 signaling pathway.
Podocytes/metabolism*
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Animals
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Diabetic Nephropathies/metabolism*
;
Saponins/therapeutic use*
;
Triterpenes/therapeutic use*
;
Signal Transduction/drug effects*
;
NF-kappa B/metabolism*
;
Protein Serine-Threonine Kinases/metabolism*
;
Male
;
Rats, Sprague-Dawley
;
NLR Family, Pyrin Domain-Containing 3 Protein/metabolism*
;
Endoribonucleases/metabolism*
;
Endoplasmic Reticulum Chaperone BiP
;
Rats
;
Diabetes Mellitus, Experimental/complications*
;
Endoplasmic Reticulum/metabolism*
;
Multienzyme Complexes
5.Colon Dialysis with Yishen Decoction Improves Autophagy Disorder in Intestinal Mucosal Epithelial Cells of Chronic Renal Failure by Regulating SIRT1 Pathway.
Yan-Jun FAN ; Jing-Ai FANG ; Su-Fen LI ; Ting LIU ; Wen-Yuan LIU ; Ya-Ling HU ; Rui-Hua WANG ; Hui LI ; Da-Lin SUN ; Guang ZHANG ; Zi-Yuan ZHANG
Chinese journal of integrative medicine 2025;31(10):899-907
OBJECTIVE:
To explore the mechanism of colon dialysis with Yishen Decoction (YS) in improving the autophagy disorder of intestinal epithelial cells in chronic renal failure (CRF) in vivo and in vitro.
METHODS:
Thirty male SD rats were randomly divided into normal, CRF, and colonic dialysis with YS groups by a random number table method (n=10). The CRF model was established by orally gavage of adenine 200 mg/(kg•d) for 4 weeks. CRF rats in the YS group were treated with colonic dialysis using YS 20 g/(kg•d) for 14 consecutive days. The serum creatinine (SCr) and urea nitrogen (BUN) levels were detected by enzyme-linked immunosorbent assay. Pathological changes of kidney and colon tissues were observed by hematoxylin and eosin staining. Autophagosome changes in colonic epithelial cells was observed with electron microscopy. In vitro experiments, human colon cancer epithelial cells (T84) were cultured and divided into normal, urea model (74U), YS colon dialysis, autophagy activator rapamycin (Ra), autophagy inhibitor 3-methyladenine (3-MA), and SIRT1 activator resveratrol (Re) groups. RT-PCR and Western blot were used to detect the mRNA and protein expressions of zonula occludens-1 (ZO-1), Claudin-1, silent information regulator sirtuin 1 (SIRT1), LC3, and Beclin-1 both in vitro and in vivo.
RESULTS:
Colonic dialysis with YS decreased SCr and BUN levels in CRF rats (P<0.05), and alleviated the pathological changes of renal and colon tissues. Expressions of SIRT1, ZO-1, Claudin-1, Beclin-1, and LC3II/I were increased in the YS group compared with the CRF group in vivo (P<0.05). In in vitro study, compared with normal group, the expressions of SIRT1, ZO-1, and Claudin-1 were decreased, and expressions of Beclin-1, and LC3II/I were increased in the 74U group (P<0.05). Compared with the 74U group, expressions of SIRT1, ZO-1, and Claudin-1 were increased, whereas Beclin-1, and LC3II/I were decreased in the YS group (P<0.05). The treatment of 3-MA and rapamycin regulated autophagy and the expression of SIRT1. SIRT1 activator intervention up-regulated autophagy as well as the expressions of ZO-1 and Claudin-1 compared with the 74U group (P<0.05).
CONCLUSION
Colonic dialysis with YS could improve autophagy disorder and repair CRF intestinal mucosal barrier injury by regulating SIRT1 expression in intestinal epithelial cells.
Animals
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Sirtuin 1/metabolism*
;
Drugs, Chinese Herbal/therapeutic use*
;
Autophagy/drug effects*
;
Male
;
Intestinal Mucosa/drug effects*
;
Rats, Sprague-Dawley
;
Epithelial Cells/metabolism*
;
Colon/drug effects*
;
Humans
;
Kidney Failure, Chronic/drug therapy*
;
Signal Transduction/drug effects*
;
Renal Dialysis
;
Rats
;
Kidney/drug effects*
6.Ginsenoside Rb1 inhibits cardiomyocyte apoptosis and rescues ischemic myocardium by targeting Caspase-3.
Chenhui ZHONG ; Liyuan KE ; Fen HU ; Zuan LIN ; Shuming YE ; Ziyao ZHENG ; Shengnan HAN ; Zan LIN ; Yuying ZHAN ; Yan HU ; Peiying SHI ; Lei WEN ; Hong YAO
Journal of Pharmaceutical Analysis 2025;15(3):101142-101142
Image 1.
7.Management strategy and maternal and fetal prognosis of patients diagnosed with cervical cancer and continuing pregnancy before 34 weeks of gestation
Hui-Fen YIN ; Jing ZHU ; Hao ZHU ; Hai-Yan LIU ; Wei-Rong GU ; Rong HU
Fudan University Journal of Medical Sciences 2024;51(5):749-756
Objective To summarize the treatment of cervical cancer patients diagnosed before 34 weeks of gestation who chose to continue pregnancy,and to provide clinical experience for improving maternal and fetal outcomes.Methods Clinical data of pregnant women with cervical cancer admitted to the Obstetrics and Gynecology Hospital,Fudan University from Jan 2013 to Feb 2024 were collected and analyzed.Treatment of patients diagnosed before 34 weeks of gestation and chose to continue pregnancy was summarized.Outcomes of patients and newborn were followed up.Results A total of 15 patients were enrolled with a median age of 34 years old.Nine cases(9/15)represented clinical symptom of abnormal vaginal bleeding,14 cases(14/15)of patients were diagnosed in the middle or late stages of pregnancy,12 cases(12/15)diagnosed with tumor size of more than 2 cm,13 patients(13/15)infected HPV type 16 or 18.The main pathological type was squamous cell carcinoma(9/15).Regarding therapy,one patient with stage Ⅰa1 was under observation and underwent a caesarean section and total hysterectomy at 35 weeks of gestation due to premature rupture of membrane and a scarred uterus.For the other patients with 14 stage Ⅰb,lymph node metastasis was excluded by pelvic lymphadenectomy or MRI,and then neoadjuvant chemotherapy was administered.Termination of pregnancy and standardized treatment for cervical cancer were provided after 34 weeks of gestation.One patient's pathology was upgraded to stage Ⅱa1 after surgery.Up to follow-up,13 out of 15 patients had survived without tumors.The average gestational age of newborns was(35.0±1.5)weeks,and the average birth weight was(2 345.33±431.44)g.Blood tests conducted one day after delivery of the newborns revealed that:8 newborns(8/15)had hypoleukocyte and one newborn(1/15)had anemia.After short-term hospitalization and supportive treatment,all newborns'progress was favorable.Conclusion For pregnant patients with stage Ⅰb cervical cancer diagnosed before 34 weeks of gestation,postponing termination to after 34 weeks of gestation through neoadjuvant chemotherapy and then giving standardized treatment for cervical cancer was safe with favorable maternal and fetal prognosis.
8.Clinical Efficacy of Bushen Yij ing Decoction for the Treatment of Xerophthalmia of Kidney Yang Deficiency Type and the Analysis of Th1/Th17 Cytokines
Wen-Jing HU ; Ting-Ting HU ; Zhang-Qing HE ; Wen-Fen CHEN ; De-Li ZENG ; Jun ZENG
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(5):1213-1219
Objective To investigate the clinical efficacy of Bushen Yijing Decoction for the treatment of xerophthalmia of kidney yang deficiency type and to observe its effect on serum Th1/Th17 cytokines.Methods From January 2021 to January 2023,a total of 96 patients with xerophthalmia of kidney yang deficiency type were selected as the study objects.According to the treatment methods,the patients were divided into observation group and control group,with 48 cases in each group.The control group was treated with Sodium Hyaluronate Eye Drops externally,and the observation group was given oral use of Bushen Yijing Decoction together with Sodium Hyaluronate Eye Drops externally.The course of treatment for the two groups covered 21 days.The changes of tear film break-up time(BUT),corneal fluorescein staining(FL)score,SchirmerⅠtest(SIT)value,serum Th1/Th17 cytokines,Ocular Surface Disease Index(OSDI)questionnaire scores,and 25-Item National Eye Institute Visual Function Questionnaire(NEI-VFQ-25)score in the two groups were observed before and after treatment.Moreover,the clinical efficacy and incidence of adverse reactions were compared between the two groups.Results(1)After 21 days of treatment,the total effective rate of the observation group was 95.83%(46/48),and that of the control group was 70.83%(34/48).The intergroup comparison(tested by chi-square test)showed that the clinical efficacy of the observation group was significantly superior to that of the control group(P<0.01).(2)After treatment,the ocular surface function indicators of BUT and SIT values in the two groups were higher and the FL values were lower than those before treatment(P<0.05).The increase of BUT and SIT values and the decrease of FL values in the observation group were significantly superior to those in the control group(P<0.01).(3)After treatment,the levels of serum cytokines of interleukin 17(IL-17),tumor necrosis factor alpha(TNF-α)and interferon gamma(IFN-γ)in the two groups were lower than those before treatment(P<0.05),and the decrease of serum IL-17,TNF-α and IFN-γ levels in the observation group was significantly superior to that in the control group(P<0.01).(4)After treatment,the questionnaire scores of OSDI in the two groups were lower and the NEI-VFQ-25 scores were higher than those before treatment(P<0.05).The decrease of OSDI scores and the increase of NEI-VFQ-25 scores in the observation group were significantly superior to those in the control group(P<0.01).(5)The incidence of adverse reactions in the observation group was 4.17%(2/48),and that in the control group was 8.33%(4/48).There was no significant difference between the two groups(P>0.05).Conclusion Bushen Yijing Decoction can enhance the clinical efficacy of xerophthalmia of kidney yang deficiency type,and the decoction is effective on alleviating the eye discomforts,improving the ocular surface function of patients,regulating the levels of Th1/Th17 cytokines,and relieving the inflammatory response without inducing severe adverse reactions while with high safety.
9.The prognostic significance and biological effects of CYP27A1 in hepatocellular carcinoma
Xin-Tong ZHANG ; Hao WU ; Yan-Fen HU ; Wen-Tao ZHANG ; Jing-Jia CHANG ; Jian-Jun ZHU ; Li LI ; Ming LIU
Medical Journal of Chinese People's Liberation Army 2024;49(4):387-395
Objective To analyze the prognostic significance and biological effects of cytochrome P450 family 27 subfamily A member 1(CYP27A1)in hepatocellular carcinoma(HCC),and to preliminarily explore its molecular mechanism of regulating the malignant growth of HCC.Methods The Cance Genome Atlas(TCGA)database was used to analyze the expression level of CYP27A1 and its prognostic effect on HCC patients.The samples were divided into CYP27A1 high-expression group(n=170)and low-expression group(n=170)based on the median expression of CYP27A1 in HCC,gene set enrichment analysis(GSEA)was performed to investigate gene sets associated with CYP27A1 expression.The subcellular localization of CYP27A1 was detected by immunofluorescence staining and search database.The over-expression plasmid of CYP27A1 was constructed and then transfected into the HCC cells MHCC-97H and HCCLM3 cell lines,including two groups,namely control group(transfecting empty vector)and CYP27A1 over-expression group(transfecting CYP27A1 over-expressed vector).CCK-8,flow cytometer,and reactive oxygen species(ROS)fluorescence probe were applied to detect the effects of CYP27A1 over-expression on cell viability,apoptosis and ROS levels in HCC cells.Combining bioinformatics to analyze the correlation between CYP27A1 and the expression of ROS generation-related genes and HCC proliferation-related genes.Results Compared with the normal liver tissue,the expression level of CYP27A1 mRNA in HCC tissue was significantly reduced(P<0.01).The expression of CYP27A1 was significantly correlated with sex,T stage,tumor grade and tumor stage of HCC patients(P<0.05).Compared to the CYP27A1 high-expression group,patients in CYP27A1 low-expression group had lower survival rate(P<0.01).GSEA enrichment analysis revealed that the levels of HCC stem cell-related gene clusters and HCC proliferation gene clusters were remarkably increased in CYP27A1 low-expression group.The immunofluorescence showed that CYP27A1 was mainly located in nucleus in MHCC-97H and HCCLM3,whereas CYP27A1 was mainly located in mitochondria in HepG2.CYP27A1 over-expression attenuated cell viability(P<0.01),and reduced the ROS levels(P<0.05),whereas it had no effects on the apoptosis in HCC cells(P>0.05).The expression of CYP27A1 and the expression of inhibiting ROS generation-related genes were positively correlated(P<0.05),while the expression of inhibiting ROS generation-related genes and the expression of HCC proliferation-related genes were negatively correlated(P<0.05).Conclusions The expression of CYP27A1 was decreased in HCC,and down-regulated CYP27A1 promoted cell growth by enhancing ROS generation,although the precise mechanism requires future educidation.
10.A retrospective study of micro-implant anchorage in the upper posterior region to improve gummy smiles
Ying ZHOU ; Yafen XU ; Fen LUO ; Zhiyong HU ; Ruiting YANG ; Jie ZHANG
Journal of Prevention and Treatment for Stomatological Diseases 2024;32(6):428-435
Objective To analyze the ability of micro-implant nails placed in different locations in the posterior re-gion to improve the hard and soft tissues of the labiodental region in patients with gummy smiles to provide a reference for clinicians.Methods This study was reviewed and approved by the Ethics Committee,and informed consent was ob-tained from the patients.Thirty young female patients with anterior tooth protrusions and gummy smiles were included in the retrospective study;18 patients had micro-implant nails implanted between the premolars(group A),and 12 pa-tients had implant nails placed between the roots of the premolar and the molar and an intraoperatively placed rocking-chair archwire(group B).The preoperative and postoperative distances from the incisal end of the upper mesial incisors to the lower point of the upper lip(U1-Stms),the vertical distance from the incisal end of the upper mesial incisors to the palatal plane(U1-PP),the vertical distance from the point of the alveolar ridge to the palatal plane(Spr-PP),the dis-tance from the incisal end of the upper mesial incisors to the point of the alveolar margin(U1-Spr),and the vertical dis-tance from the point of the proximal middle buccal cusp of the maxillary first molar to the palatal plane of the maxillary first molar(U6-PP)were measured in the cephalometric lateral radiographs of the two groups;additionally,the amount of hard and soft tissues of the upper anterior region exposedduring smiling and the maximum amount of gingiva exposed during smiling were assessed from the smile photograph.Results After correction,the lip-dentition relationship im-proved significantly in both groups,with an average reduction of 2.6 mm in U1-Stms,2.4 mm in U1-PP,1.4 mm in Spr-PP,and 0.9 mm in U1-Spr in Group A.In group B,the U1-Stms was reduced by an average of 2.3 mm,the U1-PPs by an average of 1.6 mm,the Spr-PPs by 1.4 mm,and the U1-Spr by 0.2 mm.The difference between pre-and postoperative U6-PP in both groups was not significant(P>0.05).Group A had greater ?U1-PP and ?U1-Spr changes than group B(P<0.05).There was no difference between the two groups in terms of ?U1-Stms or ?Spr-PP(P>0.05).The amount of soft and hard tissue exposed and maximum amount of gingiva exposed in the upper anterior region of the smile were reduced in 30 patients postoperatively,with group A having anaverage reduction of 70.19%of the preoperative amount of soft and hard tissue exposed in the upper anterior region and an average reduction of 24.12%of the preoperative max-imum amount of gingiva exposed,and group B having an average reduction of 76.12%of the preoperative amount of hard and soft tissue exposed in the upper anterior region and an average reduction of 31.88%of the preoperative maxi-mum gingiva exposed after the operation.The difference in the ratio between the two groups was not statistically sig-nificant(P>0.05).Conclusion For patients with proptosis and gummy smiles,placing micro-implant nails between the roots of maxillary premolars can effectively lead to retraction and intrusion of anterior teeth to improve the lip-denti-tion relationship and improve gummy smile,and placing micro-implant nails between the roots of the maxillary second premolar and the first molar together with the use of rocking chair arches can also achieve a good therapeutic effect.

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