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BACKGROUND: As a dominant breed pig in southwest China, the southern Yunnan small-ear pig has been widely used as an experimental animal in the basic research of other disciplines, but there are still no reports on its application in anterior cruciate ligament reconstruction. OBJECTIVE: To establish a large animal model of the southern Yunnan small-ear pig with anterior cruciate ligament with autologous Achilles tendon was established. METHODS: Twenty adult female Yunnan small-ear pigs were equally randomized into two groups. In the autologous Achilles tendon group, the right knee anterior cruciate ligament was reconstructed with autologous Achilles tendon as a graft, while in the sham-operated group, a similar operation was performed on the right knee without any treatment of the anterior cruciate ligament. General conditions of each pig were observed and recorded before and 12 months after surgery. Ligaments and grafts were taken for gross observation and MAS scoring. Hematoxylin-eosin staining was performed to observe morphological characteristics of ligaments. The staining and arrangement of type I and type III collagen were evaluated by immunohistochemistry. Transmission electron microscopy was used to observe the type, size, diameter, ratio, and distribution of collagen fibers in ligaments. RESULTS AND CONCLUSION: All animals had normal diet and activity, good wound healing, no obvious inflammatory reaction, no local purulent infection, and no significant changes in mental and urinary conditions compared with those before surgery. The reconstructed cruciate ligament of the knee was intact, with no stiffness and normal range of motion. Both the anterior drawer and Lachman tests were negative. Gross observation of the graft: 12 months after surgery, the grafts was in good position, with good integrity, obvious tension, ligament color close to the original anterior cruciate ligament, and complete surface synovial coverage. Most of the intraarticular ligaments in the autologous Achilles tendon group were defined as MAS I type and a few were defined as MAS II type. In the sham-operated group, the intraarticular ligament was defined as MAS I type. Hematoxylin-eosin staining indicated that, 12 months after surgery, collagen fibers in the autologous Achilles tendon group began to appear bundled, isotropic, and uniformly arranged, with more obvious isotropic corrugations, and the nuclei were mainly linear or spindle-shaped, which were similar to those in normal anterior cruciate ligament tissue of the sham-operated group. Immunohistochemistry results indicated that, 12 months after surgery, there was a higher expression of type I collagen and significantly less expression of type III collagen in the reconstructed anterior cruciate ligament in the autologous Achilles tendon group. The degree of type I and type III staining was similar in the two groups. Under the transmission electron microscope, the diameter, arrangement and density of collagen fibers in the reconstructed anterior cruciate ligament of the autologous Achilles tendon group were similar to those of the original anterior cruciate ligament at 12 months after surgery, indicating that the ligament remodeling process had been basically completed in the autologous Achilles tendon group at 12 months after surgery. Through a comprehensive evaluation of animal general conditions, ligament general view, MAS score, hematoxylin-eosin staining, immunohistochemistry, and transmission electron microscopy observation, we successfully established a large animal model of anterior cruciate ligament reconstruction using autogenous Achilles tendon in southern Yunnan small-ear pigs, with good morphological, histological and ultrastructural results. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND: It has been hypothesized that PANoptosis may be involved in the pathologic process of osteoporosis, but there have been no studies addressing the mechanisms of PANoptosis genes in osteoporosis. OBJECTIVE: To analyze the biological mechanism of PANoptosis regulators in the occurrence and development of osteoporosis. METHODS: The GSE56815 dataset was obtained from the Gene Expression Omnibus database and PANoptosis genes were extracted for differential analysis. The key genes of PANoptosis were screened by random forest tree model to construct a disease risk prediction model. Consensus clustering algorithm, single sample genome enrichment analysis and immune infiltration analysis were used to explore the differences between different PANoptosis molecular subtypes. Herbal drugs that regulate the key genes of PANoptosis were predicted through Coremine medical database, a medical ontology information retrieval platform. RESULTS AND CONCLUSION: Based on the four PANoptosis key genes (CASP1, CASP10, MEFV, and TNF), the diagnostic markers of osteoporosis were determined, and the risk prediction model was constructed and verified. Osteoporosis was divided into two different PANoptosis subtypes (clusters A, B and gene clusters A, B), and the PANoptosis scores of cluster B and gene cluster B were higher than those of cluster A and gene cluster A, respectively. Traditional Chinese drugs such as ginseng which can regulate the key genes of PANoptosis were predicted by the Coremine medical database. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND: Internal tension-reduction technique is to reconstruct the anterior cruciate ligament through high-strength suture system combined with tendon. It can effectively reduce graft relaxation and frets by sharing the internal load of the knee joint, and has achieved good biomechanical results and clinical efficacy. However, whether it can reduce cartilage degeneration after anterior cruciate ligament reconstruction through stress sharing reduction has not been studied. OBJECTIVE: To investigate the effect of internal tension-reduction technique on articular cartilage degeneration in southern Yunnan small-ear pigs undergoing anterior cruciate ligament reconstruction. METHODS: Ten adult female Yunnan small-ear pigs were selected, and the ipsilateral knee Achilles tendon was taken from the left knee joint for anterior cruciate ligament reconstruction (normal group, n=10), and the ipsilateral knee Achilles tendon from the right knee joint combined with internal tension)reduction and augmentation system for anterior cruciate ligament reconstruction (tension-reduction group, n=10). One year after surgery, the experimental pigs were sacrificed, and the left and right knee cartilage was taken for hematoxylin-eosin staining, Safranin O-fast green staining, Osteoarthritis Research Society International scoring, and immunohistochemistry staining of type II collagen, interleukin-1β, and tumor necrosis factor-alpha in the cartilage. RESULTS AND CONCLUSION: Hematoxylin-eosin staining showed that in the tension-reduction group, there were mild pathologic changes of osteoarthritis, with a low number of empty bone lacunae and no obvious pathological changes such as fibrosis or cell layer breakage; in the normal group, more severe cartilage damage, with an increased number of empty bone lacunae, loss of chondrocytes near the bone and even the formation of fissures. Safranin O-fast green staining indicated that the tension-reduction group had normal cartilage tissue thickness, flat cartilage surface, a neat cell arrangement in a polar pattern, and no swelling or apoptosis, while in the normal group, the thickness of cartilage tissue was obviously thinner, the cell arrangement was disordered with no polarity, the number of cells was reduced, obvious cartilage fractures and cartilage vacuoles formed, and the absence of cells near the central bone was obvious. The Osteoarthritis Research Society International score was significantly lower in the tension-reduction group than in the normal group (P < 0.05). Immunohistochemical findings showed that the protein expression of type II collagen in cartilage tissue of the tension-reducing group was higher than that of the normal group (P < 0.05), and the protein expression of interleukin 1β and tumor necrosis factor ɑ in cartilage tissue was lower than that of normal group (P < 0.05). To conclude, internal tension-reduction technique can delay the degeneration of articular cartilage in Yunnan small-eared pigs following anterior cruciate ligament reconstruction. [ABSTRACT FROM AUTHOR]

Copyright of China Tropical Medicine is the property of China Tropical Medicine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND: Synovium plays an important role in the development of osteoarthritis, and cuproptosis is a new type of programmed cell death recently discovered, up to now, there is no research on the mechanism of cuproptosis gene in osteoarthritis from synovial angle. OBJECTIVE: The synovial membrane was used as the entry point to explore the potential mechanism of the development of osteoarthritis from the perspective of cuproptosis. METHODS: The coincident osteoarthritis related chips were retrieved through Gene Expression Omnibus (GEO) database and standardized. Cuproptosis related genes were extracted and quantified based on the gene expression matrix after treatment. Random Forest model, Support Vector Machines model, Machine learning and Nomogram Model were used to construct disease prediction model to predict the risk of osteoarthritis. Then, consensus clustering algorithm, principal component analysis, single sample gene set enrichment analysis and immune infiltration were used to analyze the correlation of cuproptosis molecular subtypes with immune microenvironment and inflammatory factors. RESULTS AND CONCLUSION: (1) A risk prediction model based on cuproptosis characteristic gene was established for the first time. The disease prediction model constructed by three cuproptosis characteristic genes (DBT, LIPT1, FDX1) could predict the risk of osteoarthritis. (2) It is found for the first time that patients with osteoarthritis can be classified into two distinct subtypes of cuproptosis molecule (cluster A and cluster B). Cluster B is highly correlated with the imbalance of Th1/Th2 cell ratio, and has higher expression levels of interleukin-2, interleukin-4, and interleukin-5. [ABSTRACT FROM AUTHOR]

Copyright of Practical Pharmacy & Clinical Remedies is the property of Editorial Department of Practical Pharmacy & Clinical Remedies and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND: Osteoarthritis is a common degenerative joint disease. Its pathogenesis is complex and has not been elucidated. However, studies have shown that the occurrence and development of osteoarthritis is related to the programmed death of chondrocytes. OBJECTIVE: To summarize the research progress in new programmed cell death in osteoarthritis chondrocytes. METHODS: “Osteoarthritis, Pyroptosis, Necroptosis, Ferroptosis, ROS, L-ROS, iron-overload” were used as English and Chinese search terms. Relevant articles on programmed cell death were searched in CNKI, WanFang, VIP, and PubMed. The search time was from July 2012 to July 2022. All included articles were summarized, concluded, and analyzed. RESULTS AND CONCLUSION: The relationship between pyroptosis and osteoarthritis has attracted much attention in recent years, and current research still focuses on NLRP3 inflammasome and lipopolysaccharides. The development of osteoarthritis has also been shown to be closely associated with receptor-interacting protein kinase 1 in studies concerning necroptosis, and receptor-interacting protein kinase 1 could be a potential target for the treatment of osteoarthritis. Ferroptosis is a recently discovered mode of cell death, which has been found to mediate chondrocyte death through iron overload and lipid peroxidation, but ferroptosis involves the expression and regulation of multiple genes via complex signaling pathways and mechanisms that are not yet fully elucidated. Pyroptosis, necroptosis, and ferroptosis have important roles in the occurrence and development of osteoarthritis, but their related pathways, genes, and miRNAs still need further study. [ABSTRACT FROM AUTHOR]

BACKGROUND: As one of the most prevalent types of RNA modification, N6-methyladenosine (m6A) methylation has emerged as a bright spot for regulating various diseases by interfering with RNA splicing, translation, nuclear export and decay. However, studies of methyltransferase-like 3 (METTL3)-mediated epigenetic modification of m6A methylation on bone metabolism have not been summarized. OBJECTIVE: To summarize the potential molecular mechanism of m6 A core methyltransferase METTL3 in bone metabolism and its latest progress and future prospects in regulating osteogenic differentiation, osteoclastic differentiation, cartilage apoptosis, extracellular matrix degeneration, and bone metabolismrelated diseases, thereby offering new insights into the study of the pathological mechanism of bone metabolism-related diseases and then providing a theoretical reference for the early diagnosis, clinical treatment, and prognosis of the diseases. METHODS: The CNKI database was searched with the Chinese keywords of “N6-methyladenine, methyltransferase-like 3, osteoblasts, osteoclasts, chondrocytes, mesenchymal stem cells, bone metabolism, osteoporosis, osteoarthritis, orthopedic diseases, treatment.” The PubMed database was searched with the English keywords of “m6A, METTL3, Osteoblast, osteoclasts, chondrocyte, mesenchymal stem cells, bone metabolism, osteoporosis, osteoarthritis, orthopedic disease, therapy.” Literature on METTL3/m6A-mediated RNA methylation in orthopedic diseases was retrieved from database establishment to March 2022. As per the inclusion and exclusion criteria, 35 articles were finally selected for review. RESULTS AND CONCLUSION: The role of METTL3 in osteogenesis is controversial and remains to be further studied in depth. METTL3/m6A-mediated RNA methylation can regulate osteogenic and adipogenic differentiation of bone marrow mesenchymal stem cells through a variety of mechanisms, but the specific mechanism is not clear. METT3 regulation of osteoclast differentiation function is essential for maintaining bone homeostasis as well as maintaining bone integrity. METTL3 plays an important role in the development of bone metabolism-related diseases; therefore, METTL3 overexpression may become a new alternative therapy for the treatment of human bone metabolism-related diseases such as osteoporosis. [ABSTRACT FROM AUTHOR]

Copyright of Guangdong Architecture Civil Engineering is the property of Guangdong Architecture Civil Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this paper, Cu2O/CuO graphite carbon nitride adsorbent is prepared by one-step thermal polymerization with cuprous oxide and dicyandiamide as precursors. The introduction of copper oxide expands the π conjugation system of g-C3N4 effectively, which is conducive to the adsorption of dyes with benzene ring structure through π-π interaction； Cu2O/CuO-g-C3N4 adsorbent has mesoporous structures with various pore sizes, which increases its specific surface area and provides sufficient active sites for dye adsorption. The adsorption influencing factors of methyl orange, such as the preparation conditions of adsorbent, dosage, dye concentration, adsorption time, stirring speed, pH, etc., are studied. The maximal absorption ratio is 96. 11% under the optimal conditions. The kinetic analysis shows that the adsorption process is a quasi first-order kinetic model. According to the adsorption isothermal experiment, the adsorption isotherm belongs to Langmuir adsorption isotherm. In the whole adsorption experiment, the maximum equilibrium adsorption amount is 241. 25 mg/g. [ABSTRACT FROM AUTHOR]

BACKGROUND: Arthroscopic anterior cruciate ligament reconstruction is an important treatment for anterior cruciate ligament injury and fracture. Postoperative tendon to bone healing is closely related to the early postoperative rehabilitation and functional recovery of patients. In particular, the time and firmness of tendon to bone healing have become important indicators to evaluate the efficacy of anterior cruciate ligament reconstruction. OBJECTIVE: To summarize the research progress in promoting tendon to bone healing after anterior cruciate ligament reconstruction in recent years, hoping to inspire surgeons and related researchers and better serve basic research and clinical work. METHODS: Using “anterior cruciate ligament, tendon to bone Healing, knee joint, anterior cruciate ligament reconstruction” as English and Chinese search terms, related articles regarding tendon to bone healing were searched by computer in CNKI, WanFang Database, PubMed, and FMRS. The time period of literature retrieval was from January 2011 to December 2021, and systematic generalization, summary and analysis were conducted. The shortcomings and future prospects of the research are also discussed. RESULTS AND CONCLUSION: With the development of medical technology and research level, tendon to bone healing after anterior cruciate ligament reconstruction can be promoted from various aspects such as surgical method improvement, tissue engineering technology and postoperative rehabilitation optimization. However, there are also some limitations, such as a lot of research achievements to promote tendon to bone healing only stay on the animal experiment, especially the experiments of small animals (rat and rabbit). These animals are small in size and extremely different from humans in terms of biological mechanics and body mass; therefore, further research is required to explore whether these study results have the same effect in humans and whether there are long-term adverse reactions or not. There are still few studies on whether the combination of various methods to promote tendon to bone healing can produce a synergistic effect or an inhibitory effect, which may provide new ideas for further research on tendon to bone healing. [ABSTRACT FROM AUTHOR]

Objective To review the data of carpal tunnel release surgery in the treatment of carpal tunnel syndrome (CTS) with carpal arthroscopy, and to explore the clinical effect of this operation. Methods 47 patients with carpal tunnel syndrome admitted in our department between December 2020 and December 2021 as the object in this study. All patients were treated with carpal tunnel syndrome by single-channel carpal tunnel release surgery under carpal arthroscopy, and all patients were followed up at least for 6 months. The recovery of symptoms and function before and after surgery was compared using the Modified Boston Carpal Tunnel Syndrome Score Scale (SSS score and FSS score）. Results After follow-up investigation, the symptoms of hand anesthesia and function in 47 patients were significantly improved compared with those before surgery, and the incidence of postoperative wrist pain was small. SSS score was ( 47.53±2.2) before and ( 82.13±9.42) after surgery, and the difference was statistically significant (P < 0.05). FSS score was (10.00±1.12) before and (30.76±2.64) after surgery, and the difference was statistically significant (P < 0.05). Conclusion Carpal arthroscopy single channel carpal tunnel release in the treatment of carpal tunnel syndrome can achieve reliable clinical efficacy, can significantly relieve patients with hand anesthesia and other symptoms, can reduce complication of postoperative pain and improve hand function, is worth popularizing in clinical use. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A new type of short centerline probe is designed to measure the core flow Mach number in the 0.6 m×0.6 m continuous transonic wind tunnel. In order to study the influence of different transonic test sections on the measured results of the short centerline probe, the influence of the short centerline probe at different Mach numbers is studied by numerical simulation. The short centerline probe is used to measure the Mach number of the core flow in the hole wall test section and the slot wall test section, respectively, and the test results are compared with those of the long centerline probe. The results show that the trend of Mach number curve measured by the short centerline probe in the two test sections is consistent with that of the reference value curve and the difference is small when Ma≤0.95. The difference between the measured value and the reference value of the hole wall test section is obviously smaller than that of the slot wall test section, and the anti head wave interference ability of the hole wall test section is stronger than that of the slot wall test section when Ma≥1.0. [ABSTRACT FROM AUTHOR]

Copyright of Water Conservancy & Electric Power Technology & Application is the property of Omniscient Pte. Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Practical Pharmacy & Clinical Remedies is the property of Editorial Department of Practical Pharmacy & Clinical Remedies and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agricultural Science & Technology (1008-0864) is the property of Journal of Agricultural Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agricultural Science & Technology (1008-0864) is the property of Journal of Agricultural Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To investigate the efficacy of Shuotong Jing combined with holmium laser in the treatment of renal pelvis. Methods Sixty- six patients with pyelonesis treated with Shuotong Jing combined with holmium laser and 76 patients with ureteral calculi treated with ureteroscope and holmium laser were selected from the urinary ward of the Second Affiliated Hospital of KunmingMedical University from January to September 2018. In the Shuotong group，there were 34 males and 30 females， aged 23- 64 years old， with an average of （41.09±7.11） years old，with a diameter of 0.8- 2.0 cm，an average of 1.2 cm. And there were 40 males in the ureteroscopy group， 36 female，aged 25 to 68 years，mean （43.38 ± 7.81） years old， stone diameter of 0.7 ~ 2.0cm， an average of 1.1cm. All patients underwent general anesthesia， and then placed under the guidance of super- sliding black guide wire，then enter the Shuotong Jing and ureteroscope to find the renal calculus，and crush the stone. We observed the operation time， hospital stay， intraoperative bleeding， stone clearance rate （January）， postoperative complications， success rate of sheathing and other related conditions. Results The operation time of the Shuotong group was 60.84±10.27min， the average intraoperative blood loss was 27.98ml， the stone clearance rate was （16.87%） （62/64）， and the postoperative complications were 4.68% （3/64） . The ureter was soft. The average operation time of the microscope group was 75.05±8.61min， the average intraoperative blood loss was 54.71ml， the stone clearance rate （January） was 78.94% （62/64）， and the postoperative complications were 21.05% （3/64. There were significant differences in operation time， intraoperative bleeding， stone clearance rate， and postoperative complications between the two groups （P < 0.05）， but there was no significant difference in hospitalization time and catheterization success rate（P > 0.05） . Conclusion Shuotong Jing lithotripsy has the advantages of feasibility， relative safety， high stone removal rate and lowinfection rate in the treatment of renal pelvis. [ABSTRACT FROM AUTHOR]

目的 比较硕通镜钬激光碎石术 (STL)、输尿管软镜钬激光碎石术(FURSL)治疗体外冲击波碎石术 (ESWL) 失败的输尿管上段结石的效果。方法 ESWL 治疗失败的输尿管上段结石患者40例,将所有患者随机分为 STL 组和 FURSL 组各 20 例, STL 组采用硕通镜钬激光碎石术治疗, FURSL 组采用 FURSL 治疗,比较两组手术时间、住院时间、术后1月结石清除率、置鞘成功率和术后并发症发生率。结果 STL组手术时间(22.38 ± 5.26) min、住院时间(2.12 ± 0.34) d、术后 1 月SFR 100%(20/20)、置鞘成功率85. 0%(17/20)、发热5. 0%(1/20)、血尿5. 0%(1/20)、输尿管损伤15. 0%(3/20), FURSL 组分别为(31. 67±6. 18) min、(3.15 ± 0.89) d、95%(19/20)、80.0%(16/20)、20.0%(4/20)、30.0%(6/20)、20.0%(4/20), 两组手术时间、住院时间、血尿发生率比较,P <0.05。结论 STL 与 FURSL 在治疗 ESWL 失败的输尿管上段结石上均为安全有效的手术方式。FURSL 因术中引流不佳,易造成肾盂压力增大及视野不清,提高感染、黏膜损伤等并发症的风险; STL 术中具有负压吸引作用,有效降低了肾盂压力,保持视野清晰,降低了并发症发生和提高了术后恢复。 [ABSTRACT FROM AUTHOR]

Cleaning peach branch residue need a great number of labor power and is also costly. The study aimed to investigate the effects of peach branch residue mulching on soil physical and chemical properties and peach quality. The field experiment was carried out from 2013 to 2015 in a peach orchard with dwarf peach trees in Ping Gu district, Beijing(116°59'E,40°11'N). Three treatments were designed including no cover (CK), rychophragmus violaceus cover (T1), and peach branch residue cover (T3). Rychophragmus violaceus was planted in April each year and cut in October for residue cover. The peach branch was crushed into pieces smaller than 5 cm, mixed with soil evenly, turned into soil 10 cm depth. During the experiment, the irrigation amount each year was 1350 L/hm2. Measured indicators included soil particle composition, soil density, moisture, organic matter, emission rate of carbon dioxide, and quality of peach fruits. The results showed that: 1) During the whole growth period of fruit trees, the residual branches cover could greatly affect soil properties. The T2 and T1 could significantly increase soil >0.25 mm aggregates compared with CK, and the T2 had larger effect on T1; 2) Overall, the soil compactness had the trend of CK>T1>T2. The compactness of CK was 30.2% higher than the T1 and 43.9% higher than T1 (P<0.05). The compactness of T1 was 10.54% higher than T2 (P<0.05); 3) The soil water characteristic curve for soils collected in June and October revealed that the soil water holding capacity of the T2 treatment was 10.16% higher than CK when the water suction was 30 kPa, and that of T2 and T1 treatment was 10.02% and 8.51% higher than that of CK when the water suction was 100 kPa; 4) Water infiltration rate decreased and stabilized with infiltration time. The stable infiltration rate of CK, T1 and T2 was 4.22, 8.41, and 10.01 cm/h; 5) Compared with CK, the soil organic matter content in T1 and T2 was increased by 119.8% and 183.2% (P<0.05), respectively; 6) Compared with CK, the T2 could increase the Vc content of peach by 43.5%, decrease titratable acid by 21.7%, increase soluble sugar by 20%, and increase the average single fruit weight by 7.9%(P<0.05). They were not significantly different between T1 and T2. In conclusion, the soil physical and chemical properties could be improved and the fruit quality was improved by peach branch residue cover. The peach branch residue cover had the similar effects with the rychophragmus violaceus cover. The study provides valuable information for peach orchard residue management. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)