With the rapid development of competitive sports, the incidence of anterior cruciate ligament (ACL) injury is on the rise. Such injuries may shorten athletes′ career and lead to other long-term adverse consequences. Although athletes generally recover well after ACL reconstruction, many still struggle to return to their pre-injury performance levels. Advances in the understanding of ACL anatomy and injury mechanisms, along with the evolution of surgical techniques and rehabilitation methods, have provided more individualized and tailored options for athletes following ACL injuries. However, there is currently no consensus in China regarding surgical and rehabilitation strategies for competitive athletes aiming to return to sports after ACL injuries. To this end, the Sports Medicine Committee of the Chinese Research Hospital Association and the Editorial Board of the Chinese Journal of Trauma jointly formulated the Expert consensus on surgical treatment and rehabilitation for competitive sports athletes returning to sports after anterior cruciate ligament injury ( version 2025), and presented 14 recommendations covering surgical indications, preoperative rehabilitation, surgical timing, surgical strategies and postoperative rehabilitation strategies, aiming to improve the surgical treatment and rehabilitation system for ACL injuries in competitive athletes and facilitate their return to high-level sports performance after injury.

With the rapid development of competitive sports, the incidence of anterior cruciate ligament (ACL) injury is on the rise. Such injuries may shorten athletes′ career and lead to other long-term adverse consequences. Although athletes generally recover well after ACL reconstruction, many still struggle to return to their pre-injury performance levels. Advances in the understanding of ACL anatomy and injury mechanisms, along with the evolution of surgical techniques and rehabilitation methods, have provided more individualized and tailored options for athletes following ACL injuries. However, there is currently no consensus in China regarding surgical and rehabilitation strategies for competitive athletes aiming to return to sports after ACL injuries. To this end, the Sports Medicine Committee of the Chinese Research Hospital Association and the Editorial Board of the Chinese Journal of Trauma jointly formulated the Expert consensus on surgical treatment and rehabilitation for competitive sports athletes returning to sports after anterior cruciate ligament injury ( version 2025), and presented 14 recommendations covering surgical indications, preoperative rehabilitation, surgical timing, surgical strategies and postoperative rehabilitation strategies, aiming to improve the surgical treatment and rehabilitation system for ACL injuries in competitive athletes and facilitate their return to high-level sports performance after injury.

Objective:To evaluate the value of preoperative vascular ultrasound parameters in predicting the postoperative lower extremity deep venous thrombosis (DVT) in patients with gynecological malignant tumors.Methods:Ninety-nine patients with gynecological malignant tumors, aged>18 yr, with body mass index<30 kg/m 2, of American Society of Anesthesiologists Physical Status classification Ⅱ or Ⅲ, scheduled for elective surgery under general anesthesia, were selected. Vascular ultrasound examination was performed before surgery. The flow velocity and diameter of common femoral vein (CFV), deep femoral vein (DFV), popliteal vein (POV), and intermuscular vein (IMV) were recorded. Ultrasound examination of lower limb veins (including anterior tibial vein, posterior tibial vein, IMV, CFV, DFV, POV) were conducted at 1-8 days after surgery to determine whether a DVT occurred. The receiver operating charcateristic curve was used to evaluate the accuracy of each indicator in predicting the lower extremity DVT, and the cut-off value was determined based on the maximum principle of Jorden index. Results:The incidence of lower extremity DVT was 13.1%. The area under the curve (95% confidence interval) of the preoperative CFV flow velocity and diameter, DFV flow velocity and diameter, POV flow velocity and diameter, IMV flow velocity and diameter in predicting the lower extremity DVT were 0.769 (0.616-0.923) and 0.800 (0.644-0.950), 0.797 (0.641-0.954) and 0.771 (0.596-0.945), 0.806 (0.645-0.968) and 0.754 (0.606-0.903), 0.764 (0.615-0.914) and 0.818 (0.645-0.990), respectively ( P<0.05), and the predicted cut-off values were 27.13 cm/s and 11.93 mm, 19.31 cm/s and 10.15 mm, 16.04 cm/s and 8.79 mm, 14.39 cm/s and 8.68 mm, respectively, and the sensitivity and specificity were 90.0%, 71.4% and 90.0%, 74.3%; 90.0%, 74.3% and 90.0%, 68.6%; 90.0%, 82.9% and 90.0%, 72.9%; 90.0%, 70.0% and 80.0%, 87.1%, respectively. Conclusions:Preoperative vascular vascular ultrasound parameters can accurately predict the occurrence of postoperative lower extremity DVT in patients with gynecological malignant tumors.

Micro-computed tomography(Micro-CT)is a non-invasive technology that is widely used in animal experiments to assist in the detection of bone,lung,oral,metabolic,middle and inner ear diseases,as well as tumors,and in other animal disease models.The technique can provide diverse scientific and reliable imaging data for animal experiments and has accordingly become an indispensable experimental method in animal experiments.In this review,we introduce the imaging principles of Micro-CT,review its application in the study of animal disease models,summarize the limitations of Micro-CT technology,and consider its future prospects.

Objective:To explore and validate the targets of Salvia miltiorrhiza in myopia using network pharmacology and molecular docking technology. Methods:The TCMSP database was used to extract the targets of Salvia miltiorrhiza.GeneCards, DisGeNET, Malacard and OMIM databases were used to extract the myopia-related targets.The target intersection was taken, and the intersecting targets were selected to extract the corresponding active ingredients of traditional Chinese medicine (TCM) and construct the pharmacological regulatory network of TCM using Cytoscape.The protein interaction network map for the key target genes was constructed using the String database, and the relevant proteins were selected to download the three-dimensional structures of the active ingredients from the PubChem database, and molecular docking was performed using AutoDockvina software.Twelve 3-week-old guinea pigs were induced with lens-induced myopia (LIM) in the right eye and randomly divided into normal saline group and sodium danshensu group, with 6 animals in each group.During the maintenance of LIM, periocular injection of 1 ml normal saline or sodium danshensu was performed daily.The contralateral eye was used as a negative control.On days 0, 14, and 28 of the experiment, the axial length of both eyes was measured by A-scan ultrasonography, and the refractive status was assessed with a streak retinoscope.To avoid individual differences, relative spherical equivalent (treated eye-contralateral eye) and relative axial length (treated eye-contralateral eye) were compared.On day 28, the relative expression levels of hypoxia-inducible factor-1α (HIF-1α) and transforming growth factor-β1 (TGF-β1) proteins were determined by Western blot.The feeding and use of laboratory animals followed the 3R principle, and the research program was approved by the Ethics Committee of Experimental Animal Center of Zhengzhou University (No.ZZU-LAC 202320405[02]). Results:Sixteen intersecting key targets were screened for myopia and TCM components derived from Salvia divinorum.A TCM network pharmacology map and protein interaction map were constructed with Salvia divinorum as a drug candidate, and the corresponding proteins of target genes, such as MMP2, TGFB1, and MMP9 were screened to perform molecular docking with the active ingredients, such as lignocellulosic acid, danshensu, tanshinone ⅡA, and so on.After 14 days of induction, the relative spherical equivalent and relative axial length were (-4.67±1.03)D and (0.67±0.26)mm in sodium danshensu group, and (-6.30±1.22)D and (1.08±0.34)mm normal saline group, indicating slower myopia progression and axial elongation in sodium danshensu group, and the differences were statistically significant ( t=2.412, P=0.039; t=2.750, P=0.049). The relative expression levels of HIF-1α protein were 0.20±0.01, 1.29±0.05 and 0.63±0.02, and the relative expression levels of TGF-β1 protein were 0.93±0.05, 0.25±0.01 and 0.74±0.05 in the negative control, normal saline and sodium danshensu groups, respectively.The expression of HIF-1α protein was higher in sodium danshensu group than in negative control group but lower than in the normal saline group, and the expression of TGF-β1 protein was lower in sodium danshensu group than in negative control group but higher than in the normal saline group, showing statistically significant differences (all at P<0.05). Conclusions:Natural compounds extracted from Salvia divinorum extracts may serve as potential drug candidates to combat scleral hypoxia and improve scleral extracellular matrix remodeling.

Intestinal injury is a common adverse reaction of clinical chemotherapy drugs, which limits the further application of chemotherapy drugs and causes serious physical and mental burden to patients. At present, the mechanism of chemotherapy-induced intestinal injury is complex, and traditional Chinese medicine has an excellent preventive effect. This article reviews the related mechanisms of intestinal flora imbalance, oxidative stress, inflammatory response, cell apoptosis, and immune damage caused by chemotherapy, and summarizes the role of traditional Chinese medicine in prevention and treatment of oxidative stress, inflammatory response, cell apoptosis, and immune damage.

Objective:To identify the causative gene and observe the phenotypic characteristics of a family with isolated microphthalmia-anophthalmia-coloboma (MAC).Methods:A retrospective clinical study. One patient (proband) and 3 family members of a family with MAC visited the Henan Eye Hospital from May 2019 to May 2022 were included in the study. The patient's medical history and family history were inquired in detail, and the best corrected visual acuity (BCVA), slit lamp microscope, fundus photography, optical coherence tomography (OCT), ophthalmological B mode ultrasound and axial length (AL) measurement were performed. The peripheral venous blood of the proband, his parents and brother was collected for Trio whole-exome sequencing and pathogenic gene screening. Fluorescence quantitative Polymerase chain reaction was used to verify the suspicious variations. The clinical features of the patient's ocular and systemic also were observed.Results:The proband, male, was 3 years old at the first visit. The horizontal pendular nystagmus was detected in both eyes. Vertical elliptical microcornea and keyhole-shaped iris colobomas were detected in both eyes. The objective refraction at first visit (3 years old) was -4.00 DS/-0.50 DC×105° (OD) and -3.50 DS/-1.25 DC×80° (OS). Refraction and BCVA at 6 years old: -6.50 DS/-2.00 DC×110°→0.05 (OD) and -6.00 DS/-1.50 DC×80°→0.2 (OS). The AL at 4 years and 10 months old was 24.62 mm (OD) and 23.92 mm (OS), respectively. The AL at 5 years and 7 months old was 25.24 mm (OD) and 24.36 mm (OS), respectively. Ultrasonography shows tissue defects in both eyes. Fundus photography showed the inferior choroidal coloboma involving optic disc. OCT showed the optic disc in both eyes was abnormal with colobomas around, and the retinal neurosensory layer in colobomas area was disordered and thin; the retinoschisis was visible in the left eye. The proband's parents and siblings have normal phenotypes. Whole exome sequencing reveals a denovo heterozygous deletion of YAP1 gene: YAP1, chr11: 10280247-102100671, NM_ 001130145, loss 1 (EXON: 6-9). The results of bioinformatics analysis were pathogenic variants. Parents and siblings were of the wild type. Conclusions:Loss of heterozygosity in exons 6-9 of YAP1 gene is the pathogenic variation in this family. It can cause abnormal development of anterior segment, chorioretinal colobomas, deepening of axial myopia, even severe macular colobomas and retinoschisis.

Objective: To analyze physical fitness of students aged 6-22 years old from seven ethnic groups in Yunnan Province, and to provide reference for physical fitness intervention measures. Methods: The nationality, gender, grade, body shape, vital capacity, exercise quality of students were derived from the 2019 Yunnan Student Physical Health Survey Database. Comprehensive physical fitness score was calculated according to the National Student Physical Fitness Standards(revised in 2014). t test, ANOVA, and χ 2 test were used to analyze physical fitness score and level among students with different ethnic groups, gender, and school stages. Results: The average comprehensive score of physical fitness among students from 7 ethnic groups in Yunnan Province was (70.02±9.69）, with the pass rate being 88.91%. The proportion of excellent was 0.93%, good was 17.90%, pass 70.09 %, and failed was 11.09%. Physical fitness score was highest in BMI (94.99 points), followed by 50 meter running (74.13 points), sitting forward bend (72.63 points), endurance running (70.43 points), standing long jump (67.77 points), sit ups ( 65.71 points) , 1 minute skipping rope (65.25 points), vital capacity (62.97 points), pull up (29.04 points). Physical fitness score and pass rate and evaluation level varied significantly by ethnicity and school stage( F =293.53，452.85， χ 2/ χ 2 trend =466.65， 412.57 ； 1 553.22 ，1 045.36， P <0.01). Conclusion The excellent rate of physical fitness among students in Yunnan Province is relatively low. Physical fitness promotion requires specific guidance and training based on ethnicity and school stage.

Objective:To identify the causative genes of the posterior microphthalmia-retinal pigment degeneration family.Methods:A retrospective clinical study. One child (proband) and 3 family members of a family with posterior microphthalmia-retinitis pigmentosa diagnosed by clinical and genetic examination at Henan Provincial People's Hospital in July 2019 were included in the study. Medical history and family history, and draw pedigree of the patients was collected. Visual acuity, visual field, fundus color photography, optical coherence tomography and electroretinogram (ERG) were examined. The peripheral venous blood of the proband, his parents and sister, and extract the whole genome DNA was collected. Whole-exome sequencing was used to detect genetic variations, the suspected pathogenic variations were verified by Sanger sequencing, and the pathogenicity was determined by bioinformatics analysis.Results:The parents discovered the proband was poor vision at the age of 10 months. At the age of 3, the best corrected visual acuity of the right eye and the left eye were 0.3 and 0.4, respectively. No abnormality was found in anterior segment. Extremely high hyperopia in both eyes. The axial length was 14.47 mm and 15.78 mm, respectively. The optic disc of both eyes was relatively small and flushed, retinal folds can be observed in macular area, and no obvious pigment deposition was found. ERG examination showed that the rod system response and the maximal combined response of both eyes decreased slightly to moderately, and the single-flash cone response and the 30 Hz flicker response decreased moderately to severely. Genetic analysis revealed two novel mutations in the membrane frizzled-related protein ( MFRP) gene in the proband: c.363delC/p.Thr121Thrfs*16, c.1627C>T/p.Gln543Stop,37 in exon 4 and 13, the former was a frameshift mutation, encoding 16 amino acids and then terminated, and the latter was an nonsense mutation, truncated 37 amino acids, both which were predicted to be pathogenic and segregate with disease. The mother and sister carried c.363delC, and the father carried c.1627C>T. Conclusion:MFRP gene c.363delC/p.Thr121Thrfs*16, c.1627C >T/p.Gln543Stop, 37 compound heterozygous mutation may be the pathogenic gene of this family.

Objective: To explore the genotype-phenotype correlation among 3 pedigrees affected with congenital aniridia. Methods: Clinical data and genomic DNA were collected and genetic variations were screened by whole-exome sequencing, with an emphasis on PAX6-related genes.Suspected variations were verified by Sanger sequencing and quantitative polymerase chain reaction (PCR). Written informed consent was obtained from the parents of each propositus prior to entering study cohort.This study protocol was approved by Ethic Committee of Henan Eye Hospital (No.HNEECKY-2017(6)). Results: Genetic analysis identified that a nonsense c. 949 C>T variation and an c. 141+ 1 G>T splicing variation of the PAX6 gene in two of the probands, while the remainder has carried a duplication in 11 p13 (chr11: 31531331-31827959) encompassing the PAX6 and ELP4 genes.Phenotype analysis showed that the probands carrying the nonsense and splicing variations had classical features including complete aniridia, macular hypoplasia, microcornea and nystagmus; the proband carrying the 11p13 duplication had microphthalmos, microcornea, macular dysplasia, iris dysgenesis, and nystagmus. Conclusions The 11p13 duplication involving the PAX6 gene may have caused over-expression of PAX6 gene, resulting in severe eye abnormalities including microphthalmos and microcornea, macular dysplasia and nystagmus.The relatively mild iris dysgenesis has distinguishing it from classical aniridia due to PAX6 haploinsufficiency.