Mutations in the BEST1 gene are associated with a range of retinal diseases collectively referred to as "Best diseases", including Best vitelline macular dystrophy. More than 300 mutations at different sites of the BEST1 gene have been found, which may cause a series of functional disorders such as the mistransport of the calcium-activated anion channel protein-1 protein encoded by it, protein oligomerization defects, and abnormal anion channel activity, leading to different clinical phenotypes. Although it has been established that the BEST1 gene mutation is associated with at least one different type of Best disease, the relationship between the specific gene mutation site and the specific clinical phenotype has not been fully defined. For the time being. Drugs and gene therapy for the Best diseases are still in the basic research stage, which provides a broad development space for future treatment exploration. In the future, when selecting gene therapy in clinical applications, it is necessary to combine the clinical phenotype and molecular diagnosis of patients, and clearly define their mutation types and pathogenic mechanisms in order to achieve better personalized treatment effects.

BACKGROUND:Arthroscopic single-row fixation with knotless suture bridge fixation techniques have been commonly used in the treatment of rotator cuff injuries,but the clinical efficacy in rotator cuff injuries combined with osteoporosis is unclear.OBJECTIVE:To investigate the clinical efficacy of arthroscopic single-row fixation versus knotless suture bridge fixation in the treatment of rotator cuff injuries combined with osteoporosis.METHODS:One hundred and twenty-two patients with rotator cuff injuries combined with osteoporosis who underwent arthroscopic treatment admitted to Affiliated Hospital of Xuzhou Medical University between January 2018 and August 2022 were retrospectively analyzed.They were divided into two groups according to the treatment plan.There were 63 patients with single-row fixation(single-row group)and 59 patients with knotless suture-bridge fixation(suture-bridge group).The visual analog scale scores for pain,University of California Los Angeles Shoulder Score,American Shoulder and Elbow Surgeons Score,Constant-Murley score,and shoulder range of motion were compared between the two groups at the preoperative and 1 year postoperative periods.Rotator cuff re-tears were evaluated at 1 year postoperatively using the Sugaya staging criteria.The occurrence of complications was recorded in both groups.RESULTS AND CONCLUSION:(1)All patients received more than 1-year follow-up.No complications such as incision infection and nerve injury occurred in both groups after surgery.(2)Postoperative visual analog scale scores,University of California Los Angeles Shoulder Score,American Shoulder and Elbow Surgeons Score,Constant-Murley scores,and shoulder range of motion were significantly improved 1 year postoperatively in both groups compared with the preoperative period(P＜0.05).Visual analog scale scores,University of California Los Angeles Shoulder Score,American Shoulder and Elbow Surgeons Score,Constant-Murley scores,and shoulder range of motion were better in the suture-bridge group than in the single-row group 1 year postoperatively(P＜0.05).(3)At 1 year postoperatively,the re-tear rate in the single-row group[22％(14/63)]was significantly higher than that in the suture-bridge group[7％(4/59)],and the difference between the two groups was statistically significant(x2=5.777,P=0.016).(4)It is indicated that arthroscopic single-row fixation and knotless suture bridge fixation for rotator cuff injuries combined with osteoporosis both yielded satisfactory clinical outcomes,but knotless suture bridge fixation was more clinically effective,with a lower rate of postoperative retear.

OBJECTIVE: To investigate the accuracy of color Doppler ultrasound (CDU) and CT angiography (CTA) in the preoperative evaluation of perforator vessels in free posterior interosseous artery perforator (PIAP) flaps. METHODS: Between January 2020 and December 2023, 19 patients with hand skin and soft tissue defects caused by trauma were admitted. There were 11 males and 8 females, with a median age of 45 years (range, 26-54 years). The interval between injury and admission was 5-11 days (mean, 7.2 days). The skin and soft tissue defects were located on the dorsum of the hand in 8 cases and on the fingers in 11 cases. The size of defect ranged from 4.0 cm×2.5 cm to 7.5 cm×3.5 cm. After locating the perforator vessels through CDU and CTA before operation, the free PIAP flaps were designed to repair hand defects, with the size of 4.5 cm×3.0 cm-7.5 cm×4.0 cm. The defects of donor sites were directly sutured. The number and diameter of perforator vessels in the posterior interosseous artery detected by CDU and CTA were compared. The differences in localization of perforator vessels using CDU and CTA and their clinical effects were also compared to calculate the accuracy and recognition rate. During follow-up, the survival of the skin flap was observed, and the Vancouver scar scale (VSS) score was used to evaluate the healing of the donor site, while the visual analogue scale (VAS) score was used to evaluate the patient's satisfaction with the appearance of the skin flap. RESULTS: The number and the diameter of PIAP vessels was 5.8±1.2 and (0.62±0.08) mm assessed by CDU and 5.2±1.0 and (0.60±0.07) mm by CTA, showing no significant difference between the two methods ( P>0.05). The number, course, and distribution of perforator vessels of the PIAP vessels observed during operation were basically consistent with those detected by preoperative CDU and CTA. Compared with intraoperative observation results, the recognition rates of dominant perforating vessels by CDU and CTA were 95.0% (18/19) and 89.5% (17/19), respectively, and the accuracy rates were 100% (19/19) and 84.2% (16/19), with no significant difference between the two methods ( P>0.05). All flaps survived after operation, and all wounds and incisions at donor sites healed by first intention. All patients were followed up 6-13 months (mean, 8.2 months). At last follow-up, the skin flaps had elasticity and soft texture，with the patient satisfaction VAS score of 9.2±0.8. The donor sites had no obvious scar hyperplasia with the VSS score of 11.7±0.9. CONCLUSION CDU and CTA accurately identify the dominant perforator vessels and provide reliable information for vessel localization, facilitating precise flap harvesting and minimizing donor site injury. However, CDU offers superior visualization of distal end of perforator vessels in the forearm compared to CTA.
Humans ; Female ; Male ; Adult ; Perforator Flap/blood supply* ; Middle Aged ; Ultrasonography, Doppler, Color/methods* ; Computed Tomography Angiography/methods* ; Soft Tissue Injuries/diagnostic imaging* ; Hand Injuries/diagnostic imaging* ; Plastic Surgery Procedures/methods* ; Hand/surgery* ; Preoperative Care ; Arteries/diagnostic imaging*

Mutations in the BEST1 gene are associated with a range of retinal diseases collectively referred to as "Best diseases", including Best vitelline macular dystrophy. More than 300 mutations at different sites of the BEST1 gene have been found, which may cause a series of functional disorders such as the mistransport of the calcium-activated anion channel protein-1 protein encoded by it, protein oligomerization defects, and abnormal anion channel activity, leading to different clinical phenotypes. Although it has been established that the BEST1 gene mutation is associated with at least one different type of Best disease, the relationship between the specific gene mutation site and the specific clinical phenotype has not been fully defined. For the time being. Drugs and gene therapy for the Best diseases are still in the basic research stage, which provides a broad development space for future treatment exploration. In the future, when selecting gene therapy in clinical applications, it is necessary to combine the clinical phenotype and molecular diagnosis of patients, and clearly define their mutation types and pathogenic mechanisms in order to achieve better personalized treatment effects.

Objective:To investigate the association between metabolic dysfunction-associated steatotic liver disease(MASLD)and the risk of adverse pregnancy outcomes,and to analyze the impact of the type and severity of cardiometabolic risk factor(CMRF)abnormalities on this association.Methods:A retrospective cohort study was conducted among primiparous women with singleton pregnancies who had registered at Beijing Friendship Hospital from March 10,2020,to December 31,2022.A total of 2 623 women were included.Basic characteristics and delivery outcomes were documented,liver ultrasound and relevant prenatal examinations were performed,and adverse pregnancy outcomes were diagnosed.Modi-fied Poisson regression models were used to analyze the association between MASLD and adverse pregnan-cy outcomes.The relationship between the type or severity of CMRF abnormalities in MASLD and the risk of adverse pregnancy outcomes was also explored.Results:After adjusting for confounding factors including age,gestational weight gain,and education level,MASLD was associated with an increased risk of cesarean section(RR=1.531,95％CI:1.304-1.799,P＜0.001),gestational diabetes melli-tus(GDM;RR=2.409,95％CI:1.948-2.979,P＜0.001),pregnancy-associated hypertension(PAH;RR=3.062,95％CI:2.069-4.533,P＜0.001),preterm birth(RR=2.145,95％CI:1.342-3.429,P=0.001),and large for gestational age(LGA;2.224,95％CI:1.599-3.095,P＜0.001).However,no significant associations were found for small for gestational age or postpartum hemorrhage.After adjusting for other CMRF abnormalities,the risk of adverse pregnancy outcomes varied among MASLD pregnant women with different CMRF abnormalities:the body mass index abnormal group had higher risks of cesarean section,GDM,PAH,preterm birth,and LGA;the glucose abnormal group had an increased risk of GDM;the blood pressure abnormal group had a higher risk of PAH;the high density lipoprotein cholesterol abnormal group had higher risks of cesarean section,GDM,and PAH;and the tri-glyceride abnormal group was associated with higher risks of GDM and preterm birth.Additional,as the severity of CMRF abnormalities increased,the risks of cesarean section(RR=1.199,95％CI:1.112-1.292,P＜0.001),GDM(RR=1.478,95％CI:1.345-1.624,P＜0.001),PAH(RR=1.626,95％CI:1.367-1.934,P＜0.001),preterm birth(RR=1.384,95％CI:1.120-1.710,P=0.003),and LGA(RR=1.422,95％CI:1.224-1.650,P＜0.001)continued to rise.Conclusion:MASLD during pregnancy is associated with an increased risk of multiple adverse pregnancy outcomes,and the type and severity of CMRF abnormalities significantly influence this association.These results suggest that attention should be paid to the specific CMRF abnormalities when diagnosed MASLD,as this may help to facilitate targeted interventions and reduce the risk of adverse pregnancy outcomes.

BACKGROUND:Arthroscopic single-row fixation with knotless suture bridge fixation techniques have been commonly used in the treatment of rotator cuff injuries,but the clinical efficacy in rotator cuff injuries combined with osteoporosis is unclear.OBJECTIVE:To investigate the clinical efficacy of arthroscopic single-row fixation versus knotless suture bridge fixation in the treatment of rotator cuff injuries combined with osteoporosis.METHODS:One hundred and twenty-two patients with rotator cuff injuries combined with osteoporosis who underwent arthroscopic treatment admitted to Affiliated Hospital of Xuzhou Medical University between January 2018 and August 2022 were retrospectively analyzed.They were divided into two groups according to the treatment plan.There were 63 patients with single-row fixation(single-row group)and 59 patients with knotless suture-bridge fixation(suture-bridge group).The visual analog scale scores for pain,University of California Los Angeles Shoulder Score,American Shoulder and Elbow Surgeons Score,Constant-Murley score,and shoulder range of motion were compared between the two groups at the preoperative and 1 year postoperative periods.Rotator cuff re-tears were evaluated at 1 year postoperatively using the Sugaya staging criteria.The occurrence of complications was recorded in both groups.RESULTS AND CONCLUSION:(1)All patients received more than 1-year follow-up.No complications such as incision infection and nerve injury occurred in both groups after surgery.(2)Postoperative visual analog scale scores,University of California Los Angeles Shoulder Score,American Shoulder and Elbow Surgeons Score,Constant-Murley scores,and shoulder range of motion were significantly improved 1 year postoperatively in both groups compared with the preoperative period(P＜0.05).Visual analog scale scores,University of California Los Angeles Shoulder Score,American Shoulder and Elbow Surgeons Score,Constant-Murley scores,and shoulder range of motion were better in the suture-bridge group than in the single-row group 1 year postoperatively(P＜0.05).(3)At 1 year postoperatively,the re-tear rate in the single-row group[22％(14/63)]was significantly higher than that in the suture-bridge group[7％(4/59)],and the difference between the two groups was statistically significant(x2=5.777,P=0.016).(4)It is indicated that arthroscopic single-row fixation and knotless suture bridge fixation for rotator cuff injuries combined with osteoporosis both yielded satisfactory clinical outcomes,but knotless suture bridge fixation was more clinically effective,with a lower rate of postoperative retear.

Objective:To investigate the association between metabolic dysfunction-associated steatotic liver disease(MASLD)and the risk of adverse pregnancy outcomes,and to analyze the impact of the type and severity of cardiometabolic risk factor(CMRF)abnormalities on this association.Methods:A retrospective cohort study was conducted among primiparous women with singleton pregnancies who had registered at Beijing Friendship Hospital from March 10,2020,to December 31,2022.A total of 2 623 women were included.Basic characteristics and delivery outcomes were documented,liver ultrasound and relevant prenatal examinations were performed,and adverse pregnancy outcomes were diagnosed.Modi-fied Poisson regression models were used to analyze the association between MASLD and adverse pregnan-cy outcomes.The relationship between the type or severity of CMRF abnormalities in MASLD and the risk of adverse pregnancy outcomes was also explored.Results:After adjusting for confounding factors including age,gestational weight gain,and education level,MASLD was associated with an increased risk of cesarean section(RR=1.531,95％CI:1.304-1.799,P＜0.001),gestational diabetes melli-tus(GDM;RR=2.409,95％CI:1.948-2.979,P＜0.001),pregnancy-associated hypertension(PAH;RR=3.062,95％CI:2.069-4.533,P＜0.001),preterm birth(RR=2.145,95％CI:1.342-3.429,P=0.001),and large for gestational age(LGA;2.224,95％CI:1.599-3.095,P＜0.001).However,no significant associations were found for small for gestational age or postpartum hemorrhage.After adjusting for other CMRF abnormalities,the risk of adverse pregnancy outcomes varied among MASLD pregnant women with different CMRF abnormalities:the body mass index abnormal group had higher risks of cesarean section,GDM,PAH,preterm birth,and LGA;the glucose abnormal group had an increased risk of GDM;the blood pressure abnormal group had a higher risk of PAH;the high density lipoprotein cholesterol abnormal group had higher risks of cesarean section,GDM,and PAH;and the tri-glyceride abnormal group was associated with higher risks of GDM and preterm birth.Additional,as the severity of CMRF abnormalities increased,the risks of cesarean section(RR=1.199,95％CI:1.112-1.292,P＜0.001),GDM(RR=1.478,95％CI:1.345-1.624,P＜0.001),PAH(RR=1.626,95％CI:1.367-1.934,P＜0.001),preterm birth(RR=1.384,95％CI:1.120-1.710,P=0.003),and LGA(RR=1.422,95％CI:1.224-1.650,P＜0.001)continued to rise.Conclusion:MASLD during pregnancy is associated with an increased risk of multiple adverse pregnancy outcomes,and the type and severity of CMRF abnormalities significantly influence this association.These results suggest that attention should be paid to the specific CMRF abnormalities when diagnosed MASLD,as this may help to facilitate targeted interventions and reduce the risk of adverse pregnancy outcomes.

Objective:To explore the molecular mechanism of circDDX17 regulating the proliferation and apoptosis of non-small cell lung cancer cells by targeting the miR-223-3p/RIP3 molecular axis.Methods:The expression levels of circDDX17, miR-223-3p, and RIP3 in human normal lung epithelial cell lines BEAS-2B and non-small cell lung cancer cells H1299, A549, and H446 were detected by reverse transcription-quantitative real-time polymerase chain reaction (RT-qPCR). The plasmids of pcDNA, pcDNA-circDDX17, anti-miR-con, anti-miR-223-3p, pcDNA-circDDX17 and miR-con, pcDNA-circDDX17 and miR-223-3p mimics were transfected into H1299 cells. 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H tetrazolium bromide (MTT) assay was used to detect the cell proliferation. Flow cytometry was used to detect the cell cycle and cell apoptosis. Plate cloning experiment was used to detect cell proliferation ability. The dual luciferase report experiment was applied to verify the targeting relationship between miR-223-3p with circDDX17 and RIP3. Western blot was used to detect the protein expression of cyclinD1, CDK2, cleaved caspase-3 and Bax.Results:The expression levels of circDDX17 and RIP3 mRNA in H1299, A549, and H446 cells were significantly reduced ( P<0.05), the expression level of miR-223-3p mRNA was significantly increased ( P<0.05) compared with BEAS-2B. The cell viability [(69.46±4.68)%], the number of cell clones (83.49±7.86), the proportion of cells in S phase [(22.52±1.41) %], the protein expression levels of cyclinD1 and CDK2 in PCDNa-CircDDX17 group were lower than those in pcDNA group [(97.54±7.72)%, 205.03±13.37, (28.69±1.49)%, respectively, P<0.05], while the percentage of G 0/G 1 phase cells [(64.45±3.56)%], apoptosis rate [(18.36±1.63)%], the protein expression levels of cleaved caspase-3 and Bax in pcDNA-circDDX17 group were higher than those of pcDNA group [(51.33±2.76) % and (5.21±0.54) %, respectively, P<0.05]. The viability [(72.64±5.44)%], the number of cell clones (78.16±8.23), the proportion of S-stage cells [(21.34±1.59) %], the protein expression levels of CyclinD1 and CDK2 in anti-miR-223-3p group were lower than those in anti-miR-con group [(103.47±6.25)%, 169.32±14.53, (28.43±1.26)%, respectively, P<0.05]. Percentage of G 0/G 1 phase cells [(62.86±3.28)%], apoptosis rate [(14.64±1.67)%], the protein expression levels of cleaved caspase-3 and Bax in the anti-miR-223-3p group were higher than those of anti-miR-con group [(51.33±2.71)% and (4.83±0.39)%, respectively, P<0.05]. MiR-223-3p has complementary sites with circDDX17 or RIP3. The viability [(135.45±9.28)%], the number of cell clones (174.64±10.68), the proportion of S-phase cells [(26.39±2.25)%], the protein expression levels of cyclinD1 and CDK2 in pcDNA-circDDX17+miR-223-3p group were higher than those in pcDNA-circDDX17+miR-con group [(101.56±6.68)%, 107.65±7.62, (21.64±1.72)%, P<0.05]. Percentage of G 0/G 1 phase cells [(56.64±2.76)%], apoptosis rate [(8.34±0.76)%], the protein expression levels of cleaved caspase-3 and Bax in pcDNA-circDDX17+miR-223-3p group were lower than those of pcDNA-circDDX17+miR-con group [(64.03±3.48)% and (15.21±1.18)%, respectively, P<0.05]. Conclusion:circDDX17 could inhibit the proliferation and induce apoptosis of non-small cell lung cancer cells via targeting the miR-223-3p / RIP3 molecular axis.

Objective:To explore the molecular mechanism of circDDX17 regulating the proliferation and apoptosis of non-small cell lung cancer cells by targeting the miR-223-3p/RIP3 molecular axis.Methods:The expression levels of circDDX17, miR-223-3p, and RIP3 in human normal lung epithelial cell lines BEAS-2B and non-small cell lung cancer cells H1299, A549, and H446 were detected by reverse transcription-quantitative real-time polymerase chain reaction (RT-qPCR). The plasmids of pcDNA, pcDNA-circDDX17, anti-miR-con, anti-miR-223-3p, pcDNA-circDDX17 and miR-con, pcDNA-circDDX17 and miR-223-3p mimics were transfected into H1299 cells. 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H tetrazolium bromide (MTT) assay was used to detect the cell proliferation. Flow cytometry was used to detect the cell cycle and cell apoptosis. Plate cloning experiment was used to detect cell proliferation ability. The dual luciferase report experiment was applied to verify the targeting relationship between miR-223-3p with circDDX17 and RIP3. Western blot was used to detect the protein expression of cyclinD1, CDK2, cleaved caspase-3 and Bax.Results:The expression levels of circDDX17 and RIP3 mRNA in H1299, A549, and H446 cells were significantly reduced ( P<0.05), the expression level of miR-223-3p mRNA was significantly increased ( P<0.05) compared with BEAS-2B. The cell viability [(69.46±4.68)%], the number of cell clones (83.49±7.86), the proportion of cells in S phase [(22.52±1.41) %], the protein expression levels of cyclinD1 and CDK2 in PCDNa-CircDDX17 group were lower than those in pcDNA group [(97.54±7.72)%, 205.03±13.37, (28.69±1.49)%, respectively, P<0.05], while the percentage of G 0/G 1 phase cells [(64.45±3.56)%], apoptosis rate [(18.36±1.63)%], the protein expression levels of cleaved caspase-3 and Bax in pcDNA-circDDX17 group were higher than those of pcDNA group [(51.33±2.76) % and (5.21±0.54) %, respectively, P<0.05]. The viability [(72.64±5.44)%], the number of cell clones (78.16±8.23), the proportion of S-stage cells [(21.34±1.59) %], the protein expression levels of CyclinD1 and CDK2 in anti-miR-223-3p group were lower than those in anti-miR-con group [(103.47±6.25)%, 169.32±14.53, (28.43±1.26)%, respectively, P<0.05]. Percentage of G 0/G 1 phase cells [(62.86±3.28)%], apoptosis rate [(14.64±1.67)%], the protein expression levels of cleaved caspase-3 and Bax in the anti-miR-223-3p group were higher than those of anti-miR-con group [(51.33±2.71)% and (4.83±0.39)%, respectively, P<0.05]. MiR-223-3p has complementary sites with circDDX17 or RIP3. The viability [(135.45±9.28)%], the number of cell clones (174.64±10.68), the proportion of S-phase cells [(26.39±2.25)%], the protein expression levels of cyclinD1 and CDK2 in pcDNA-circDDX17+miR-223-3p group were higher than those in pcDNA-circDDX17+miR-con group [(101.56±6.68)%, 107.65±7.62, (21.64±1.72)%, P<0.05]. Percentage of G 0/G 1 phase cells [(56.64±2.76)%], apoptosis rate [(8.34±0.76)%], the protein expression levels of cleaved caspase-3 and Bax in pcDNA-circDDX17+miR-223-3p group were lower than those of pcDNA-circDDX17+miR-con group [(64.03±3.48)% and (15.21±1.18)%, respectively, P<0.05]. Conclusion:circDDX17 could inhibit the proliferation and induce apoptosis of non-small cell lung cancer cells via targeting the miR-223-3p / RIP3 molecular axis.

Objective:To discuss the effect of mangiferin(MGF)on the healing of hip fracture in the rats by regulating the Wnt/β-catenin signaling pathway,and to clarify the mechanism.Methods:The hip fracture model in the SD rats was established.After successful modeling,the rats were divided into model group,MGF group,and MGF+XAV-939(Wnt/β-catenin signaling pathway inhibitor)group,and sham operation group was set up,and there were 15 rats in each group.From the first day after surgery,the rats in each group received MGF or XAV-939 interventions every two days,totally for 14 times.Lane-Sandhu X-ray scoring method was used to detect the fracture healing in the second and fourth weeks after surgery;micro CT was used to detect the microstructural parameters of the bone,such as bone volume(BV),number of bone trabeculae(Tb.N),bone volume fraction(BV/TV),and bone trabecular thickness(Tb.Th);HE staining was used to observe the morphology of callus tissue of the rats in various groups;enzyme-linked immunosorbent assay(ELISA)was used to detect the levels of osteogenic markers bone alkaline phosphatase(BALP)and type Ⅰ procollagen N-terminal propeptide(PINP)and bone resorption markers tartrate resistant acid phosphatase-5b(TRACP-5b)and Carboxy-terminal terminalpeptide of type Ⅰcollagen(CTX)in serum of the rats in various groups;Western blotting method was used to detect the expression levels of β-catenin,Runt-associated transcription factor 2(Runx2),and bone morphogenetic protein-2(BMP-2)in callus tissue of the rats in various groups.Results:Compared with sham operation group,the rats in model group showed distinct fracture lines,an abundance of fibrous tissue at the fracture site,and no bony callus at the 2nd and 4th weeks after fracture,the Lane-Sandhu X-ray scores and microstructural parameters BV,Tb.N,BV/TV,and Tb.Th of the rats in model group were decreased(P＜0.05),the serum level of BALP was decreased(P＜0.05),while the levels of PINP,TRACP-5b,and CTX were increased(P＜0.05),and the expression levels of β-catenin,Runx2,and BMP-2 proteins in callus tissue were decreased(P＜0.05).Compared with model group,the rats in MGF group showed significantly increased new bone callus at 2nd weeks after fracture,almost no visible fracture line at the 4th weeks,faster fracture healing,and replacement of fibrous tissue by bone tissue at the fracture site,the Lane-Sandhu X-ray scores and microstructural parameters BV,Tb.N,BV/TV,and Tb.Th of the rats in MGF group were increased(P＜0.05),the serum level of BALP was increased(P＜0.05),the levels of PINP,TRACP-5b,and CTX were decreased(P＜0.05),and the expression levels of β-catenin,Runx2,and BMP-2 proteins in callus tissue were increased(P＜0.05).Compared with MGF group,the rats in MGF+XAV-939 group showed only a small amount of new bone callus at the fracture site at 2nd and 4th weeks after fracture,with no formation of the marrow cavity,and the Lane-Sandhu X-ray scores and microstructural parameters BV,Tb.N,BV/TV,and Tb.Th of the rats in MGF+XAV-939 group were decreased(P＜0.05),the serum level of BALP was decreased(P＜0.05),the levels of PINP,TRACP-5b,and CTX were increased(P＜0.05),and the expression levels ofβ-catenin,Runx2,and BMP-2 proteins in callus tissue were decreased(P＜0.05).Conclusion:MGF can promote the healing of hip fracture in the rats,and its mechanism may be related to activation of Wnt/β-catenin signaling pathway.