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Fan W, Wang Q, Rong K, Shi Y, Peng W, Li H, Guo Z, Xu BB, Hou H, Algadi H, Ge S. MXene Enhanced 3D Needled Waste Denim Felt for High-Performance Flexible Supercapacitors. Nanomicro Lett 2023; 16:36. [PMID: 38019340 PMCID: PMC10686952 DOI: 10.1007/s40820-023-01226-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 09/20/2023] [Indexed: 11/30/2023]
Abstract
MXene, a transition metal carbide/nitride, has been prominent as an ideal electrochemical active material for supercapacitors. However, the low MXene load limits its practical applications. As environmental concerns and sustainable development become more widely recognized, it is necessary to explore a greener and cleaner technology to recycle textile by-products such as cotton. The present study proposes an effective 3D fabrication method that uses MXene to fabricate waste denim felt into ultralight and flexible supercapacitors through needling and carbonization. The 3D structure provided more sites for loading MXene onto Z-directional fiber bundles, resulting in more efficient ion exchange between the electrolyte and electrodes. Furthermore, the carbonization process removed the specific adverse groups in MXenes, further improving the specific capacitance, energy density, power density and electrical conductivity of supercapacitors. The electrodes achieve a maximum specific capacitance of 1748.5 mF cm-2 and demonstrate remarkable cycling stability maintaining more than 94% after 15,000 galvanostatic charge/discharge cycles. Besides, the obtained supercapacitors present a maximum specific capacitance of 577.5 mF cm-2, energy density of 80.2 μWh cm-2 and power density of 3 mW cm-2, respectively. The resulting supercapacitors can be used to develop smart wearable power devices such as smartwatches, laying the foundation for a novel strategy of utilizing waste cotton in a high-quality manner.
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Affiliation(s)
- Wei Fan
- Key Laboratory of Functional Textile Material and Product of the Ministry of Education, School of Textile Science and Engineering, Institute of Flexible electronics and Intelligent Textile, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China.
| | - Qi Wang
- Key Laboratory of Functional Textile Material and Product of the Ministry of Education, School of Textile Science and Engineering, Institute of Flexible electronics and Intelligent Textile, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China
| | - Kai Rong
- Key Laboratory of Functional Textile Material and Product of the Ministry of Education, School of Textile Science and Engineering, Institute of Flexible electronics and Intelligent Textile, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China
| | - Yang Shi
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Wanxi Peng
- Henan Province International Collaboration Lab of Forest Resources Utilization, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China.
| | - Handong Li
- Integrated Composites Lab, Department of Mechanical and Construction Engineering, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - Zhanhu Guo
- Integrated Composites Lab, Department of Mechanical and Construction Engineering, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - Ben Bin Xu
- Integrated Composites Lab, Department of Mechanical and Construction Engineering, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - Hua Hou
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China
| | - Hassan Algadi
- Department of Electrical Engineering, Faculty of Engineering, Najran University, 11001, Najran, Saudi Arabia
| | - Shengbo Ge
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
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Wei B, Fu C, Liu P, Bai L, Rong K. Anatomy of the Plantar Intermetatarsal Tunnel: A Cadaveric Study. J Foot Ankle Surg 2023; 62:323-326. [PMID: 36137897 DOI: 10.1053/j.jfas.2022.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/11/2022] [Accepted: 08/20/2022] [Indexed: 02/03/2023]
Abstract
The contents of the plantar intermetatarsal tunnel (PIMT) and the relationship between the common plantar interdigital nerve (CPIN) and the PIMT were recorded. The width of the PIMT was measured at the metatarsal neck (MTN), metatarsophalangeal (MTP) joint and the base of the proximal phalanx (BPP). The length of the deep transverse metatarsal ligament (DTML), the PIMT and the intracapsular ligament (ICL) were also measured. The PIMT was revealed to be a narrow osseofibrous tunnel divided into 3 segments by the DTML: the distal section, the area under the DTML (middle) and the proximal section. The length of the middle section was 12.77 mm in the second intermetatarsal (IM) space and 10.18 mm in the third IM space. The lengths of the distal sections were 15.52 and 14.95 mm in the second and third IM spaces, respectively. There was some soft tissue between the CPIN and PIMT, and the CPIN was observed not to glide freely within the tunnel. The widths of the PIMT at the MTN, MTP joint and BPP were respectively 2.87, 2.56, and 3.42 mm in the second IM space and 3.10, 2.68 and 3.61 mm in the third IM space. The ICL lies between the capsules of the MTP joint, and the length of the ICL was 2.76 and 3.03 mm in the second and third IM spaces, respectively. The PIMT was found to be a complex spatial structure, and the ICL might prevent the CPIN from being squeezed into the IM space.
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Affiliation(s)
- Baofu Wei
- Department of Hand and Foot Surgery, Linyi People's Hospital, Linyi, China
| | - Chuansheng Fu
- Department of Hand and Foot Surgery, Linyi People's Hospital, Linyi, China
| | - Peiting Liu
- Department of Hand and Foot Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, China
| | - Longbin Bai
- Department of Hand and Foot Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, China
| | - Kai Rong
- Department of Hand and Foot Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, China.
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Rong K, Lang Y, Zhou Y, Ni L, Wang L, Wang L, Zhang Y, Wen F, Wang Z, Chen P. Risk Genetic Variants ( IL-10) for Osteoporosis in Han Population from Northwest China. J Inflamm Res 2023; 16:1091-1102. [PMID: 36941985 PMCID: PMC10024466 DOI: 10.2147/jir.s396914] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 02/04/2023] [Indexed: 03/14/2023] Open
Abstract
Background Osteoporosis (OP) is a common metabolic bone disease characterized by loss of bone mass. IL-10 is considered to be a powerful immune and inflammatory suppressor. This study aimed to assess association between genetic loci in IL-10 and susceptibility to OP. Methods Association analysis between IL-10 genetic loci and OP risk through SNPStats online software. FPRP analysis (false-positive report probability) verified whether the positive results were noteworthy findings. Linkage disequilibrium (LD) and haplotype analysis were completed by Haploview 4.2 and SNPStats. Multi-factor dimensionality reduction (MDR) was used to assess interaction of SNP-SNP in susceptibility to OP. Results Allele "G" of IL-10-rs1554286 (OR = 1.21, p = 0.013), allele "C" of IL-10-rs1518111 (OR = 1.22, p = 0.011), allele "C" of IL-10-rs3024490 (OR = 1.20, p = 0.018), and allele "G" of IL-10-rs1800871 (OR = 1.21, p = 0.015) were risk factors for OP. In females, smoking, drinking, or aging ≤60 years old participants, the above genetic loci are also significantly associated with the increased risk of OP. FPRP analysis showed that all positive results are noteworthy findings. There are significant differences in serum levels of uric acid, mean hemoglobin concentration, or mean hemoglobin among different genotypes of IL-10 gene loci. MDR showed that four loci model composed rs1554286, rs1518111, rs3021094, and rs1800871 is the best model for predicting OP risk. Conclusion IL-10-rs1554286, -rs1518111, -rs3021094, and -rs1800871 are risk factors for susceptibility to OP.
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Affiliation(s)
- Kai Rong
- Department of Traumatology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Wulumuqi, Xinjiang, People’s Republic of China
| | - Yi Lang
- Department of Traumatology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Wulumuqi, Xinjiang, People’s Republic of China
| | - Yubo Zhou
- Department of Traumatology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Wulumuqi, Xinjiang, People’s Republic of China
| | - Liangtao Ni
- Department of Traumatology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Wulumuqi, Xinjiang, People’s Republic of China
| | - Lei Wang
- Department of Traumatology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Wulumuqi, Xinjiang, People’s Republic of China
| | - Long Wang
- Department of Traumatology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Wulumuqi, Xinjiang, People’s Republic of China
| | - Yaowu Zhang
- Department of Traumatology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Wulumuqi, Xinjiang, People’s Republic of China
| | - Fengli Wen
- Department of Traumatology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Wulumuqi, Xinjiang, People’s Republic of China
| | - Zhan Wang
- Department of Traumatology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Wulumuqi, Xinjiang, People’s Republic of China
| | - Pingbo Chen
- Department of Traumatology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Wulumuqi, Xinjiang, People’s Republic of China
- Correspondence: Pingbo Chen, Department of Traumatology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, No. 116, Huanghe Street, Wulumuqi, Xinjiang, People’s Republic of China, Tel/Fax +86-13899907800, Email
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Rong K, Chen P, Lang Y, Zhang Y, Wang Z, Wen F, Lu L. Morinda officinalis polysaccharide attenuates osteoporosis in rats underwent bilateral ovariectomy by suppressing the PGC-1α/PPARγ pathway. J Orthop Surg (Hong Kong) 2022; 30:10225536221130824. [PMID: 36369661 DOI: 10.1177/10225536221130824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Osteoporosis (OP) is a widespread disease that causes risks of spine and hip fractures. Morinda officinalis polysaccharide (MOP) shows therapeutic potential in OP. This article intended to understand the mechanism by which MOP impacts bone mineral density (BMD) and serum trace elements in OP rats. METHODS OP rat models were established by bilateral ovariectomy (OVX). Rats were intragastrically administered with MOP or ZLN005 [the activator of peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α)] since the first day after operation for 8 weeks. Microstructural changes in OP rats were analyzed using micro-computed tomography system. Contents of serum Zn, Cu, Fe, and Mg in rats were measured. Levels of serum superoxide dismutase (SOD), glutathione peroxidase (GSH-PX), GSH, and malondialdehyde (MDA) in rats were determined by Enzyme-linked immunosorbent assay. Protein levels of PGC-1α and peroxisome proliferator-activated receptor γ (PPARγ) in cartilage tissues of rats were determined via Western blotting. RESULTS MOP enhanced BMD, bone volume per trabecular volume (BV/TV), Tb.N, and Tb.Th and reduced Tb.Sp in the distal femur of OVX rats, elevated levels of serum Cu, Fe, and Mg and contents of SOD, GSH, and GSH-PX and decreased MDA content. Moreover, MOP suppressed the PGC-1α/PPARγ pathway. Activation of PGC-1α partially abolished the action of MOP on ameliorating OP in OVX rats and strengthening anti-oxidation ability. CONCLUSION MOP mitigated OP in OVX rats by inhibiting the PGC-1α/PPARγ pathway.
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Affiliation(s)
- Kai Rong
- Department of Hand and Foot Surgery, 117971The First Hospital of Jilin University, Changchun, China
| | - Pingbo Chen
- Department of Traumatology, 91593Hospital of Traditional Chinese Medicine Affiliated to Xinjiang Medical University, Wulumuqi, China
| | - Yi Lang
- Department of Traumatology, 91593Hospital of Traditional Chinese Medicine Affiliated to Xinjiang Medical University, Wulumuqi, China
| | - Yaowu Zhang
- Department of Traumatology, 91593Hospital of Traditional Chinese Medicine Affiliated to Xinjiang Medical University, Wulumuqi, China
| | - Zhan Wang
- Department of Traumatology, 91593Hospital of Traditional Chinese Medicine Affiliated to Xinjiang Medical University, Wulumuqi, China
| | - Fengli Wen
- Department of Traumatology, 91593Hospital of Traditional Chinese Medicine Affiliated to Xinjiang Medical University, Wulumuqi, China
| | - Laijin Lu
- Department of Hand and Foot Surgery, 117971The First Hospital of Jilin University, Changchun, China
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Rozi R, Zhou Y, Rong K, Chen P. miR-124-3p sabotages lncRNA MALAT1 stability to repress chondrocyte pyroptosis and relieve cartilage injury in osteoarthritis. J Orthop Surg Res 2022; 17:453. [PMID: 36243708 PMCID: PMC9571420 DOI: 10.1186/s13018-022-03334-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 09/21/2022] [Indexed: 11/21/2022] Open
Abstract
Background Osteoarthritis (OA) is a prevalent inflammatory joint disorder. microRNAs (miRNAs) are increasingly involved in OA. Aim Our study is proposed to clarify the role of miR-124-3p in chondrocyte pyroptosis and cartilage injury in OA.
Methods OA mouse model was established via the treatment of destabilization of the medial meniscus (DMM), and the in vitro cell model was also established as mouse chondrocytes were induced by lipopolysaccharide (LPS). Mouse cartilage injury was assessed using safranin-O-fast green staining, hematoxylin–eosin staining, and OARSI grading method. Expressions of miR-124-3p, MALAT1, KLF5, and CXCL11 were determined. Cartilage injury (MMP-13, osteocalcin), inflammation (IL-6, IL-2, TNF-, IL-1β, and IL-18)- and pyroptosis-related factors (Cleaved Caspase-1 and GSDMD-N) levels were detected. Mechanically, MALAT1 subcellular localization was confirmed. The binding relationships of miR-124-3p and MALAT1 and MALAT1 and KLF5 were verified. MALAT1 half-life period was detected. Then, miR-124-3p was overexpressed using agomiR-124-3p to perform the rescue experiments with oe-MALAT1 or oe-CXCL11. Results miR-124-3p was downregulated in DMM mice and LPS-induced chondrocytes where cartilage injury, and increased levels of inflammation- and pyroptosis-related factors were found. miR-124-3p overexpression relieved cartilage injury and repressed chondrocyte pyroptosis. miR-124-3p bounds to MALAT1 to downregulate its stability and expression, and MALAT1 bounds to KLF5 to enhance CXCL11 transcription. Overexpression of MALAT1 or CXCL11 annulled the repressive function of miR-124-3p in chondrocyte pyroptosis. Conclusion miR-124-3p reduced MALAT1 stability and inhibited the binding of MALAT1 and KLF5 to downregulate CXCL11, thereby suppressing chondrocyte pyroptosis and cartilage injury in OA.
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Affiliation(s)
- Rigbat Rozi
- Department of Fourth Orthopedics, Traditional Chinese Medicine Hospital, Affiliated to Xinjiang Medical University, No. 116, Huanghe Road, Ürümqi, 830000, Xinjiang, People's Republic of China
| | - Yubo Zhou
- Department of Fourth Orthopedics, Traditional Chinese Medicine Hospital, Affiliated to Xinjiang Medical University, No. 116, Huanghe Road, Ürümqi, 830000, Xinjiang, People's Republic of China
| | - Kai Rong
- Department of Fourth Orthopedics, Traditional Chinese Medicine Hospital, Affiliated to Xinjiang Medical University, No. 116, Huanghe Road, Ürümqi, 830000, Xinjiang, People's Republic of China
| | - Pingbo Chen
- Department of Fourth Orthopedics, Traditional Chinese Medicine Hospital, Affiliated to Xinjiang Medical University, No. 116, Huanghe Road, Ürümqi, 830000, Xinjiang, People's Republic of China.
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Wang Z, Rong K, Tanaka S, Deguchi Y, Cui M, Yan J. Quantitative Analysis of Manganese in Underwater Steel Samples Using Long-Short Double-Pulse Laser-Induced Breakdown Spectroscopy. Appl Spectrosc 2021; 75:1364-1373. [PMID: 34431712 DOI: 10.1177/00037028211038634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The long-short double-pulse laser-induced breakdown spectroscopy (LS-DP-LIBS) method was applied to qualitative and quantitative analyses of underwater steel samples to improve the detection ability of underwater measurement. The stable plasma intensity and discrete emission lines were detected using LS-DP-LIBS when comparing the measured results of single-pulse LIBS (SP-LIBS) and LS-DP-LIBS. The long pulse produces a cavitation bubble without plasma, and the short pulse induces the plasma of steel samples within the bubble. The detection features of LS-DP-LIBS for underwater steel samples were discussed in different intra-pulse delay time, long-pulse width, and delay time conditions when analyzing the measured spectra, the signal intensity of Fe(I) at 400.524 nm and 402.187 nm, Mn(I) at 404.136 nm, and intensity ratio of Mn(I) 404.136 nm/Fe(I) 402.187 nm. The results indicated that the plasma stability and spectral signal intensity were improved significantly with a long-pulse width of 80 µs in the intra-pulse delay time of 70 µs, which were appropriate for bubble formation and plasma generation. According to the discussion of the delay time effect, the state of generated plasma was almost stable from 650 ns to 850 ns. Manganese (Mn) contents in steel samples were analyzed quantitatively when measuring five steel samples with different Mn contents using LS-DP-LIBS in optimal experimental conditions. A strong linear dependence was observed with R2=0.9842, which demonstrated the feasibility and appropriateness of quantitative analysis for underwater measurement using LS-DP-LIBS.
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Affiliation(s)
- Zhenzhen Wang
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China
- Graduate School of Advanced Technology and Science, Tokushima University, Tokushima, Japan
| | - Kai Rong
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Seiya Tanaka
- Graduate School of Advanced Technology and Science, Tokushima University, Tokushima, Japan
| | - Yoshihiro Deguchi
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China
- Graduate School of Advanced Technology and Science, Tokushima University, Tokushima, Japan
| | - Minchao Cui
- Graduate School of Advanced Technology and Science, Tokushima University, Tokushima, Japan
- Key Laboratory of High-Performance Manufacturing for Aero Engine (MIIT), Northwestern Polytechnical University, Xi'an, China
| | - Junjie Yan
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China
- Graduate School of Advanced Technology and Science, Tokushima University, Tokushima, Japan
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Rong K, Liang Z, Xiang W, Wang Z, Wen F, Lu L. IL1R2 polymorphisms and their interaction are associated with osteoporosis susceptibility in the Chinese Han population. Int J Immunogenet 2021; 48:510-525. [PMID: 34664761 DOI: 10.1111/iji.12547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/05/2021] [Accepted: 06/02/2021] [Indexed: 11/29/2022]
Abstract
AIMS Interleukin 1 (IL-1) inhibitory receptor type 2 (IL1R2) serves as a negative regulator of IL-1 signalling and is involved in the pathogenesis of osteoporosis. This study aimed to determine the correlation between IL1R2 polymorphism and osteoporosis susceptibility in the Chinese Han population. METHODS We recruited 594 osteoporosis patients and 599 healthy controls. Six single nucleotide polymorphisms (SNPs) in IL1R2 were selected for genotyping using the Agena MassARRAY platform. The odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using logistic regression analysis with adjustment for age and sex. Linkage disequilibrium analysis was plotted using Haploview v4.2. Multifactor dimension reduction (MDR) was performed to estimate the SNP-SNP interactions of IL1R2 variants. RESULTS Rs11674595 (OR = 1.86, p = 0.020), rs2072472 (OR = 1.26, p = 0.019) and rs4851527 (OR = 0.78, p = 0.007) were related to the risk of osteoporosis. Moreover, the contribution of IL1R2 polymorphisms to osteoporosis risk was associated with age, sex and body mass index. We found the relationships of Trs11674595 Ars4851527 (OR = 0.80, p = 0.015), Crs11674595 Grs4851527 (OR = 1.22, p = 0.043) and Ars3218977 Grs2072472 (OR = 1.25, p = 0.022) haplotypes to osteoporosis occurrence, and a potential accumulated effect of IL1R2 SNPs (testing accuracy = 0.5783 and cross validation consistency = 10/10) on osteoporosis susceptibility. CONCLUSION IL1R2 polymorphisms (rs11674595, rs4851527, rs2072472 and rs3218977) may contribute to osteoporosis risk in the Chinese Han population. Our findings may increase our understanding of the effects of IL1R2 polymorphisms on the predisposition to osteoporosis.
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Affiliation(s)
- Kai Rong
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Zhiquan Liang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Wenyuan Xiang
- Department of Traumatology, Traditional Chinese Medical Hospital of Xinjiang Uygur Autonomous Region, Wulumuqi, China
| | - Zhan Wang
- Department of Traumatology, Traditional Chinese Medical Hospital of Xinjiang Uygur Autonomous Region, Wulumuqi, China
| | - Fengli Wen
- Department of Traumatology, Traditional Chinese Medical Hospital of Xinjiang Uygur Autonomous Region, Wulumuqi, China
| | - Laijin Lu
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
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Abstract
BACKGROUND Patients with talocalcaneal coalitions (TCC) often undergo computed tomography (CT). However, ultrasonography diagnosis of TCC has been seldom done according to the literature. PURPOSE To investigate the accuracy of ultrasonography in diagnosing TCC compared to CT. MATERIAL AND METHODS Ninety-seven consecutive patients with a clinical suspicion of TCC were included. Ultrasonography was used to assess the classification and complication of TCC. The main sonographic criteria for a positive diagnosis in cases of osseous coalition were the joint space between the medial surface of talar head and the underlying sustentaculum tali of calcaneus disappearing and being replaced by a continuous hyperechoic bony structure. In cases of fibrous coalition, ultrasonography revealed a reduced space of the joint associated with an irregular, angular appearance of its outline and hypoechoic fibrous tissue inside. These data were compared with CT findings. κ statistic was applied to determine the level of agreement. The sensitivity, specificity, positive and negative predictive values, accuracy, and Youden index of ultrasonography as a diagnostic method were assessed. RESULTS Ultrasonography findings were positive in 20 of 97 patients with a clinical suspicion of TCC. The diagnosis was confirmed by CT in 21 patients. There were one false-positive result and two false-negative results by ultrasonography. The κ value was 0.907. The sensitivity, specificity, positive and negative predictive values, accuracy, and Youden index of ultrasonography were 90.5%, 98.7%, 95.0%, 97.4%, 96.9%, and 0.892, respectively. CONCLUSION Ultrasonography could be a reliable, accurate, and non-radioactive diagnostic imaging method in diagnosis of patients with suspected TCC.
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Affiliation(s)
- Tiezheng Wang
- Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Hengtao Qi
- Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Kai Rong
- Department of Hand-Foot Surgery, Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
| | - Shuqian Zhang
- Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Shougang Bao
- Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Tianqing Cheng
- Department of Hand-Foot Surgery, Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
| | - Jianbo Teng
- Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, Shandong, PR China
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Li Y, Kang L, Rong K, Zhang Y, Suo Y, Yuan M, Bao Q, Shao S, Tse G, Li R, Liu T, Li G. Renal protective effects and mechanisms of the angiotensin receptor-neprilysin inhibitor LCZ696 in mice with cardiorenal syndrome. Life Sci 2021; 280:119692. [PMID: 34102189 DOI: 10.1016/j.lfs.2021.119692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 05/16/2021] [Accepted: 05/28/2021] [Indexed: 02/06/2023]
Abstract
AIMS This study investigated the renal protective effects and mechanisms of angiotensin receptor-neprilysin inhibitor LCZ696 in mice with cardiorenal syndrome. MATERIALS AND METHODS Mice were divided into abdominal aortic ligation alone, or treatment with LCZ696 or valsartan, whilst those undergoing sham surgery served as controls. Rat proximal renal tubular epithelial cells from the NRK-52E line were treated with control solution, LCZ696 or valsartan, in the presence or absence of Ang II for 24 h. KEY FINDINGS Compared to controls, abdominal aortic ligation significantly increased plasma NT-proBNP and urine neutrophil gelatinase-associated lipocalin (NGAL), which were associated with reduced renal length and velocity time integral on ultrasonography. Histology revealed wrinkling of the glomerular capillary wall and sclerosis of the glomerulus, dilatation of the Bowman's capsule, accompanied by diffuse renal tubular atrophy and fibrosis, accompanied by lower kidney index and higher percentage area of fibrosis. Increases in NGAL and decreased ANP protein and mRNA expression levels were observed. These abnormalities were significantly prevented by LCZ696 and to a lesser extent by valsartan. Cellular experiments demonstrated a central role of Ang II/transforming growth factor-β1/Smad2/3/connective tissue growth factor-dependent signaling leading to type IV collagen deposition. This upregulation was reversed by LCZ696 in a greater extent than valsartan treatment alone, accompanied by a significant improvement in NGAL. SIGNIFICANCE LCZ696 can reduce kidney injury to a level beyond valsartan therapy alone in mice with cardiorenal syndrome, which can be speculated by effects on epithelial-mesenchymal transition and fibrosis through downregulating the TGF-β1/Smad2/3/CTGF/Collagen IV pathway.
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Affiliation(s)
- Ying Li
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China; Department of Nephrology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Li Kang
- Department of Nephrology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Kai Rong
- Department of Nephrology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Yue Zhang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Ya Suo
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Meng Yuan
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Qiankun Bao
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Shuai Shao
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Gary Tse
- Department of Medicine and Therapeutics, Chinese University of Hong Kong, Hong Kong, China; Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Rong Li
- Department of Nephrology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Guangping Li
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China.
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Huang L, Zheng X, Gao G, Zhang H, Rong K, Chen J, Liu Y, Zhu X, Wu W, Wang Y, Wang J, Dong S. Interfacial Electron Engineering of Palladium and Molybdenum Carbide for Highly Efficient Oxygen Reduction. J Am Chem Soc 2021; 143:6933-6941. [PMID: 33915042 DOI: 10.1021/jacs.1c00656] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Interfacial electron engineering between noble metal and transition metal carbide is identified as a powerful strategy to improve the intrinsic activity of electrocatalytic oxygen reduction reaction (ORR). However, this short-range effect and the huge structural differences make it a significant challenge to obtain the desired electrocatalyst with atomically thin noble metal layers. Here, we demonstrated the combinatorial strategies to fabricate the heterostructure electrocatalyst of Mo2C-coupled Pd atomic layers (AL-Pd/Mo2C) by precise control of metal-organic framework confinement and covalent interaction. Both atomic characterizations and density functional theory calculations uncovered that the strong electron effect imposed on Pd atomic layers has intensively regulated the electronic structures and d-band center and then optimized the reaction kinetics. Remarkably, AL-Pd/Mo2C showed the highest ORR electrochemical activity and stability, which delivered a mass activity of 2.055 A mgPd-1 at 0.9 V, which is 22.1, 36.1, and 80.3 times higher than Pt/C, Pd/C, and Pd nanoparticles, respectively. The present work has developed a novel approach for atomically noble metal catalysts and provides new insights into interfacial electron regulation.
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Affiliation(s)
- Liang Huang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.,University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiliang Zheng
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Ge Gao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - He Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.,University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Kai Rong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.,University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jinxing Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.,University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yongqin Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Xinyang Zhu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.,University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Weiwei Wu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.,University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ying Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Jin Wang
- Department of Chemistry and Physics, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.,University of Science and Technology of China, Hefei, Anhui 230026, China
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11
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Wang Q, Wang Y, Wang J, Zhang L, Zhao MH, Zhao MH, Zhang L, Wang X, Yuan J, Zhou Q, Yuan Q, Chen M, Zhou X, Fu S, Li S, Zha Y, Huang R, Liu Z, Zhang J, Wang L, Pu L, Liu J, Li S, Xiong Z, Liang W, Zhao J, Mu J, Lian X, Liao Y, Gan H, Liao L, Wang R, Lv Z, Liao Y, Pan L, Yang X, Lin Z, Tong Z, Zhu Y, He Q, Wu F, Li R, Rong K, Wang C, Zhang Y, Wang Y, Tang W, Wu H, Zhao B, Li R, Wang L, Li D, Du F, Wu Y, Zhang W, Lin S, Xu P, Lin H, Hu Z, Pei F, Zhang H, Gao Y, Sun L, Li X, Wang W, Lv F, Wang D, Wang X, Xu D, Tang L, Ma Y, Wang T, Fu P, Wang T, Xing C, Zhang C, Xu X, He H, Liao X, Xie S, Hu G, Huang L. Correction to: White-coat hypertension and incident end‑stage renal disease in patients with non‑dialysis chronic kidney disease: results from the C‑STRIDE Study. Lab Invest 2020; 18:282. [PMID: 32660649 PMCID: PMC7359592 DOI: 10.1186/s12967-020-02447-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Rong K, Wei J, Huang L, Fang Y, Dong S. Synthesis of low dimensional hierarchical transition metal oxides via a direct deep eutectic solvent calcining method for enhanced oxygen evolution catalysis. Nanoscale 2020; 12:20719-20725. [PMID: 33029600 DOI: 10.1039/d0nr04378h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Transition metal oxides (TMOs) are regarded as important materials due to their wide applications in catalysis, sensors, energy storage and conversion devices owing to their advantages of facile synthesis, low cost, and high activity. Here we develop a direct deep eutectic solvent (DES) calcining method to prepare low-dimensional and highly active TMOs for the electrochemical oxygen evolution reaction (OER). Glucose monohydrate and urea can form a glucose-urea DES, which was calcined under a N2 atmosphere to produce 2D N,O-doped graphene. When metal precursors were introduced into the glucose-urea DES and calcined together, the TMOs were templated by graphene flakes and exhibited low-dimensional morphologies. With this method, 2D nanonet-shaped La0.5Sr0.5Co0.8Fe0.2O3 (LSCF), Co3O4, NiCo2O4, and RuO2 and 1D nanowire-shaped Ba0.5Sr0.5Co0.8Fe0.2O3 (BSCF) were readily synthesized, and their thickness and porosity can be conveniently tuned by adjusting the concentrations of metal salts. Our nanostructured TMOs were further applied for the OER, and they showed quite competitive activities over their counterparts obtained from other methods. The 2D porous LSCF20-DES exhibited the largest specific surface area (28.9 m2 g-1) and the highest OER electrocatalytic activities (0.304 V overpotential at a current density of 10 mA cm-2). These results demonstrate that the DES calcining method is a comprehensive approach to synthesize hierarchical TMOs as highly active OER catalysts.
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Affiliation(s)
- Kai Rong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China. and University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Jiale Wei
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China. and University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Liang Huang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China. and University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Youxing Fang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China.
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China. and University of Science and Technology of China, Hefei, Anhui 230026, P. R. China and University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Rong K, Zheng H, Yang R, Liu X, Li L, Chen N, Zhao G, Gong C, Deng Y. Melatonin and its metabolite N(1)-acetyl-N(1)-formyl-5-methoxykynuramine improve learning and memory impairment related to Alzheimer's disease in rats. J Biochem Mol Toxicol 2019; 34:e22430. [PMID: 31833155 DOI: 10.1002/jbt.22430] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 10/05/2019] [Accepted: 12/02/2019] [Indexed: 12/13/2022]
Abstract
The aim of this study was to investigate the effect of melatonin (MT) and its metabolite N(1)-acetyl-N(2)-formyl-5-methoxykynuramine (AFMK) on Alzheimer-like learning and memory impairment in rats intracerebroventricularly injected with streptozotocin (STZ). The results showed that the escape latency of the STZ group was longer than that of the control (CON), MT, and AFMK groups. Increased levels of hyperphosphorylated tau, neurofilament proteins, and malondialdehyde and decreased superoxide dismutase levels were observed in the brains of the rats from the STZ group compared with the brains of the rats from the CON, MT, AFMK high and low group. These results suggest that exogenous MT and AFMK can improve memory impairment and downregulate AD-like hyperphosphorylation induced by STZ, most likely through their antioxidation function. Meanwhile, we found that an equal dose of AFMK had a stronger effect than that of MT. Our results indicate that MT and its metabolite AFMK represent novel treatment strategies for Alzheimer's disease.
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Affiliation(s)
- Kai Rong
- Nephrology Department, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Hong Zheng
- Nursing School, Tianjin Medical University, Tianjin, China
| | - Ruibo Yang
- Nursing School, Tianjin Medical University, Tianjin, China
| | - Xiaoli Liu
- Pathology Department, Xingtai People's Hospital, Xingtai, Hebei, China
| | - Liya Li
- Nursing School, Tianjin Medical University, Tianjin, China
| | - Ning Chen
- Pathophysiology Department, Basic Medical College, Tianjin Medical University, Tianjin, China
| | - Gang Zhao
- Department of Pathology, Tianjin Cancer Hospital, Tianjin Medical University, Tianjin, China
| | - Chengxin Gong
- Department of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, Staten Island, New York
| | - Yanqiu Deng
- Pathophysiology Department, Basic Medical College, Tianjin Medical University, Tianjin, China
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Qiao J, Yang L, Rong K, Lei J, Zhang Y, Chang Y, Sun Y, Wu J. Clinical analysis of insomnia symptoms in patients with sudden sensorineural hearing loss. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Wu W, Wang Q, Chen J, Huang L, Zhang H, Rong K, Dong S. Biomimetic design for enhancing the peroxidase mimicking activity of hemin. Nanoscale 2019; 11:12603-12609. [PMID: 31232410 DOI: 10.1039/c9nr03506k] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Although various nanomaterials have been found to exhibit intrinsic enzyme-like activity, to date, there is no general strategy for designing nanozymes, and their catalytic mechanism has not been studied in depth. To realize the desired enzymatic properties, imitating the structure of natural enzymes is a commendable way to develop effective nanozymes. Inspired by the structure of natural horseradish peroxidase (HRP), we loaded hemin onto amino-modified single-walled carbon nanotubes (SWNT-NH2) to prepare an effective peroxidase-like nanozyme (SWNT-NH2@hemin). The peroxidase-like activity of hemin was enhanced by SWNT through π-π interactions, and the positively charged -NH2 groups played a similar role to arginine in HRP and stabilized the intermediate during catalysis and facilitated the cleavage of the O-O bond. This is instructive for the development of a variety of highly efficient nanozymes by simulating the adjacent environment of the active center in natural enzymes. In addition, dual sensor platforms consisting of a colorimetric method and electrochemical method were developed based on SWNT-NH2@hemin.
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Affiliation(s)
- Weiwei Wu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China. and University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Qingqing Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China.
| | - Jinxing Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China. and University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Liang Huang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China. and University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - He Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China. and University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Kai Rong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China. and University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China. and University of Science and Technology of China, Hefei, Anhui 230026, PR China
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Liang Z, Rong K, Gu W, Yu X, Fang R, Deng Y, Lu L. Surgical site infection following elective orthopaedic surgeries in geriatric patients: Incidence and associated risk factors. Int Wound J 2019; 16:773-780. [PMID: 30790453 PMCID: PMC7948685 DOI: 10.1111/iwj.13096] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 01/21/2019] [Accepted: 01/26/2019] [Indexed: 11/27/2022] Open
Abstract
The purposes of this study were to investigate the incidence of surgical site infection (SSI) following geriatric elective orthopaedic surgeries and identify the associated risk factors This was a retrospective two-institution study. Between January 2014 and September 2017, patients aged 60 years or older undergoing elective orthopaedic surgeries were included for data collection and analysis. SSI was identified through the review of patients' medical records for the index surgery and through the readmission diagnosis of SSI. Patients' demographics, characteristics of disease, surgery-related variables, and laboratory examination indexes were inquired and documented. Univariate and multivariate logistic analyses were performed to determine independent risk factors for SSI. There were 4818 patients undergoing elective orthopaedic surgeries, and within postoperative 1 year, 74 patients were identified to develop SSIs; therefore, the overall incidence of SSI was 3.64%, with 0.4% for deep and 1.1% for superficial infection. Staphylococcus aureus (25/47, 53.2%) and coagulase-negative staphylococci (11/47, 23.4%) were the most common causative pathogens; half of S. aureus SSIs were caused by Methicillin-resistant Staphylococcus aureus (MRSA) (12/25, 48.0%). Five risk factors were identified to be independently associated with SSI, including diabetes mellitus (odds ratio [OR], 3.7; 95% confidence interval [95% CI], 1.7-5.6), morbid obesity (OR, 2.6; 95% CI, 1.3-3.9), tobacco smoking (OR, 4.2; 95% CI, 2.1-6.4), surgical duration>75th percentile (OR, 1.9; 95% CI, 1.0-2.9), and ALB < 35.0 g/L (OR, 2.3; 95% CI, 1.3-3.4). We recommend the optimisation of modifiable risk factors such as morbid obesity, tobacco smoking, and lower serum albumin level prior to surgeries to reduce the risk of SSI.
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Affiliation(s)
- Zhiquan Liang
- Department of Hand and Foot SurgeryThe First Hospital of Jilin UniversityChangchunJilin ProvinceChina
| | - Kai Rong
- Department of Hand and Foot SurgeryThe First Hospital of Jilin UniversityChangchunJilin ProvinceChina
| | - Wenfei Gu
- Department of Spine Surgery, Traditional Chinese HospitalXinjiang Medical UniversityUrumqiXinjiangP.R. China
| | - Xin Yu
- Department of Hand and Foot SurgeryThe First Hospital of Jilin UniversityChangchunJilin ProvinceChina
| | - Rui Fang
- Department of Joint Surgery, Traditonal Chinese HospitalXinjiang Medical UniversityXinjiangP.R. China
| | - Yingjie Deng
- Department of Joint Surgery, Traditonal Chinese HospitalXinjiang Medical UniversityXinjiangP.R. China
| | - Laijin Lu
- Department of Hand and Foot SurgeryThe First Hospital of Jilin UniversityChangchunJilin ProvinceChina
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Rong K, Huang L, Zhang H, Zhai J, Fang Y, Dong S. Electrochemical fabrication of nanoporous gold electrodes in a deep eutectic solvent for electrochemical detections. Chem Commun (Camb) 2018; 54:8853-8856. [DOI: 10.1039/c8cc04454f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An electrochemical method was developed to fabricate nanoporous gold electrodes by alloying and dealloying Au–Zn alloy in ZnCl2–urea deep eutectic solvent.
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Affiliation(s)
- Kai Rong
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Liang Huang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Hui Zhang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Junfeng Zhai
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Youxing Fang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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18
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Abstract
BACKGROUND Intramuscular lengthening of the gastrocnemius and/or soleus (Baumann procedure) is widely used in patients who have cerebral palsy, with several advantages over other lengthening techniques. Tightness of the gastrocnemius or gastrocnemius-soleus complex has been confirmed to be related to flatfoot deformity. The purpose of this study was to evaluate the mid-term results of the Baumann procedure as a part of the treatment of flatfoot with equinus deformity. METHODS We reviewed 35 pediatric and adult patients (43 feet) with flatfoot who underwent the Baumann procedure for the concomitant equinus deformity. The mean duration of follow-up was 39.4 months. Preoperative and follow-up evaluations included the maximal angle of dorsiflexion of the ankle with the knee fully extended and with the knee flexed to 90 degrees, the American Orthopaedic Foot & Ankle Society ankle-hindfoot (AOFAS-AH) scores, and postoperative complications. RESULTS Preoperatively, the mean angle of passive ankle dorsiflexion with the knee extended was -4.7 ± 2.7 degrees and that with the knee flexed was 2.3 ± 2.5 degrees. At the final follow-up, both values improved significantly by a mean of 13.6 degrees (P < .001) and 9.7 degrees (P < .001), respectively. The average AOFAS-AH scores improved from 56.8 points preoperatively to 72.1 at the final follow-up. Recurrence of equinus was observed in 3 patients (4 feet). There were no cases of overcorrection, neurovascular injury, or healing problems. CONCLUSIONS Our results indicate that the Baumann procedure can effectively and sequentially correct the tightness of the gastrocnemius or the gastrocnemius-soleus complex in patients with flatfoot deformity, without obvious postoperative complications. LEVEL OF EVIDENCE Level IV, retrospective case series.
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Affiliation(s)
- Kai Rong
- Shanghai Institute of Traumatology and Orthopaedics, Shanghai, China Department of Orthopaedics, Rui Jin Hospital Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wen-tao Ge
- Shanghai Institute of Traumatology and Orthopaedics, Shanghai, China Department of Orthopaedics, Rui Jin Hospital Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xing-chen Li
- Shanghai Institute of Traumatology and Orthopaedics, Shanghai, China Department of Orthopaedics, Rui Jin Hospital Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiang-yang Xu
- Shanghai Institute of Traumatology and Orthopaedics, Shanghai, China Department of Orthopaedics, Rui Jin Hospital Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Rong K, Li XC, Ge WT, Xu Y, Xu XY. Comparison of the efficacy of three isolated gastrocnemius recession procedures in a cadaveric model of gastrocnemius tightness. International Orthopaedics (SICOT) 2015; 40:417-23. [DOI: 10.1007/s00264-015-2860-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 05/10/2015] [Indexed: 10/23/2022]
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21
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Wang G, Xu Q, Ma Z, Rong K. [Production and identification of anti-paraoxon monoclonal antibodies]. Wei Sheng Yan Jiu 1999; 28:321-3. [PMID: 12016978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Paraoxon (E600) was conjugated to bovine serum albumin(BSA) or tachypleus tridentatus hemocyanin (TTH) by diazotization. Two hybridoma cell lines secreting monoclonal antibodies(McAb) against paraoxon have been established by fusing mouse myeloma cells and splenocytes from Balb/c mice immunized with E600-BSA. The chromosomes of the hybridoma cell 2B10 were analyzed. The immunoglobulin of the McAb was classified. The affinity and specificity of this antibody were determined. The hybridoma cells have fairly reserved the antibody-producing capacity after continuously growing or stored in liquid nitrogen for 10 weeks.
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Affiliation(s)
- G Wang
- Institute of Occupational Medicine, Beijing 100050, China
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22
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Rong K, Meng X. [Injury to urinary system in the operation of gynecology]. Zhonghua Fu Chan Ke Za Zhi 1999; 34:658-9. [PMID: 11479946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
OBJECTIVE To reduce the incidence of urinary system injury from gynecology operations. METHODS 26 cases with urinary system injuries during gynecological operations were analyzed from 1982 to 1996. RESULTS The incidence of urinary injury in this hospital was 0.34%, and injuries occurred most frequently in the bladder. Among the 17 cases of bladder injuries, 12 occurred during tubal ligation, 3 during cesarean section, and 2 in myomectomy. There were 9 cases of ureter injuries, 6 cases occurred in radical hysterectomy for cervical cancer, 1 in cesarean section with hysterectomy, and 2 in hysterectomy with broad ligament leiomyoma. CONCLUSIONS This study demonstrated that it was important to be familiar with the regional anatomy, to operate strictly and separate those organs carefully in preventing the urinary system injury.
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Affiliation(s)
- K Rong
- Affiliated Hospital of Binzhou Medical College, Shandong Province, Binzhou 256603
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Yang XS, Li QL, Rong K. [A comparison between diltiazem SR and diltiazem HCL in the treatment of angina pectoris]. Zhonghua Nei Ke Za Zhi 1993; 32:31-2. [PMID: 8404314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This study included 168 patients with angina pectoris, who were divided into two groups, the diltiazem SR (No. 88) group and diltiazem HCL (No. 80) group. The two groups were comparable in age and duration of coronary heart disease. The results were as follows: (1) The total clinical effect of diltiazem SR (94.3%) was slightly greater than that of diltiazem HCL (82.5%), the effect in ECG improvement was 53.3% and 53.4% respectively. (2) The rate of adverse effect was 12.5% in diltiazem SR group and 14.4% in diltiazem HCL group. It is concluded that the two different types of diltiazem have similar effect in the treatment of angina pectoris. However, it is more convenient to take diltiazem SR than diltiazem HCL as the former needs only twice a day.
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Affiliation(s)
- X S Yang
- Department of Cardiology, Great Wall Hospital, Beijing
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Rong K, Shenberger A. [Metric x-ray investigation of the process of healing human cysts. Planimetric examination of the healing process in the bone following removal of a jaw cyst]. Stomatologiia (Mosk) 1971; 50:82-3. [PMID: 5283003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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