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Xu L, Li H, Liu B, Han X, Sun H. Systemic Inflammatory Regulators Associated with Osteoporosis: A Bidirectional Mendelian Randomization Study. Calcif Tissue Int 2024; 114:490-501. [PMID: 38528199 DOI: 10.1007/s00223-024-01200-9] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 02/20/2024] [Indexed: 03/27/2024]
Abstract
To elucidate the precise upstream and downstream regulatory mechanisms of inflammatory factors in osteoporosis (OP) progression and to establish a causal relationship between inflammatory factors and OP. We conducted bidirectional Mendelian randomization (MR) analyses using data for 41 cytokines obtained from three independent cohorts comprising 8293 Finnish individuals. Estimated bone mineral density (eBMD) data were derived from 426,824 UK Biobank White British individuals (55% female) and fracture data from 416,795 UK Biobank participants of European ancestry. The inverse variance-weighted method was the primary MR analysis approach. We employed other methods as complementary approaches for mutual corroboration. To test for pleiotropy and heterogeneity, we used the MR-Egger regression, MR-pleiotropy residual sum and outlier global test, and the Cochrane Q test. Macrophage inflammatory protein (MIP)-1α and interleukin (IL)-12p70 expression associated negatively and causally with eBMD (β = -0.017 [MIP-1α], β = -0.011 [IL-12p70]). Conversely, tumor necrosis factor-related apoptosis-inducing ligand was associated with a decreased risk of fractures (Odds Ratio: 0.980). Additionally, OP influenced the expression of multiple inflammatory factors, including growth-regulated oncogene-α, interferon-gamma, IL-6, beta nerve growth factor, and IL-2. Finally, we discovered complex bidirectional causal relationships between IL-8, IL-10, and OP. Specific inflammatory factors may contribute to OP development or may be causally affected by OP. We identified a bidirectional causal relationship between certain inflammatory factors and OP. These findings provide new perspectives for early prediction and targeted treatment of OP. Larger cohort studies are necessary in the future to further validate these findings.
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Affiliation(s)
- Lei Xu
- Department of Orthopedics, The First Hospital of Shanxi Medical University, Taiyuan, 030000, China
- The First Clinical Medical College, Shanxi Medical University, Taiyuan, 030000, China
| | - Hui Li
- Department of Orthopedics, The First Hospital of Shanxi Medical University, Taiyuan, 030000, China
- The First Clinical Medical College, Shanxi Medical University, Taiyuan, 030000, China
| | - Bin Liu
- Department of Orthopedics, The First Hospital of Shanxi Medical University, Taiyuan, 030000, China
- The First Clinical Medical College, Shanxi Medical University, Taiyuan, 030000, China
| | - Xiaoqiang Han
- Department of Orthopedics, The First Hospital of Shanxi Medical University, Taiyuan, 030000, China
| | - Haibiao Sun
- Department of Orthopedics, The First Hospital of Shanxi Medical University, Taiyuan, 030000, China.
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Cui W, Chen H, Lei L, Wang W, Lim KL, Zhang C, Lu L. Seipin Deficiency Leads to Energy Dyshomeostasis via Inducing Hypothalamic Neuroinflammation and Aberrant Expression of Neuropeptides. Neuromolecular Med 2024; 26:18. [PMID: 38691185 DOI: 10.1007/s12017-024-08788-z] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/10/2024] [Indexed: 05/03/2024]
Abstract
Seipin is a key regulator of lipid metabolism, the deficiency of which leads to severe lipodystrophy. Hypothalamus is the pivotal center of brain that modulates appetite and energy homeostasis, where Seipin is abundantly expressed. Whether and how Seipin deficiency leads to systemic metabolic disorders via hypothalamus-involved energy metabolism dysregulation remains to be elucidated. In the present study, we demonstrated that Seipin-deficiency induced hypothalamic inflammation, reduction of anorexigenic pro-opiomelanocortin (POMC), and elevation of orexigenic agonist-related peptide (AgRP). Importantly, administration of rosiglitazone, a thiazolidinedione antidiabetic agent, rescued POMC and AgRP expression, suppressed hypothalamic inflammation, and restored energy homeostasis in Seipin knockout mice. Our findings offer crucial insights into the mechanism of Seipin deficiency-associated energy imbalance and indicates that rosiglitazone could serve as potential intervening agent towards metabolic disorders linked to Seipin.
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Affiliation(s)
- Wenli Cui
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Key Laboratory of Cellular Physiology of Chinese Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Hong Chen
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Key Laboratory of Cellular Physiology of Chinese Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Lingfeng Lei
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Key Laboratory of Cellular Physiology of Chinese Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Wenru Wang
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Key Laboratory of Cellular Physiology of Chinese Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Kah-Leong Lim
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, Novena, 308232, Singapore
| | - Chengwu Zhang
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
- Key Laboratory of Cellular Physiology of Chinese Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
| | - Li Lu
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
- Key Laboratory of Cellular Physiology of Chinese Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
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Zhang H, Ma J, Feng Y, Ma H, Liu D, Pang X, Chang X, Zhao R, Wang J, Guo J, Zhang W. Efgartigimod in the treatment of Guillain-Barré syndrome. J Neurol 2024:10.1007/s00415-024-12321-4. [PMID: 38532142 DOI: 10.1007/s00415-024-12321-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/08/2024] [Accepted: 03/10/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Guillain-Barré Syndrome (GBS) is caused by immunoglobulin G (IgG) autoantibodies. Efgartigimod, a human IgG antibody Fc fragment that acts as a natural ligand for the FcRn, can increase IgG degradation, which thus may be a promising therapeutic drug for GBS. CASE PRESENTATION The two patients presented with postinfectious and acute flaccid paralysis. On admission, they were bedridden. Nerve conduction studies indicated peripheral neuropathy. GBS was suspected and they are treated with two doses of efgartigimod (10 mg/kg) within 5 days. Their muscle strength improved gradually and 4 weeks after the initial dose, they could walk independently. Following the first dose, Patient 1 complaint of muscle soreness, which subsided the next morning. Patient 2 was intubated due to respiratory failure the day after the initial dose, and did not report other adverse effects. DISCUSSION In GBS patients, two doses of efgartigimod (10 mg/kg) were effective in rapidly improving muscle strength, with a satisfactory safety profile. The findings suggest a potential role for efgartigimod in modifying the disease process in GBS patients. CONCLUSION Efgartigimod seems effective and safe in the treatment of GBS. This study indicates the potential role of efgartigimod as a novel treatment option for GBS. Well-designed clinical trials should be conducted.
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Affiliation(s)
- Huiqiu Zhang
- Department of Neurology, First Hospital, Shanxi Medical University, No.85, Jiefang South Street, Taiyuan, China
- First Clinical Medical College, Shanxi Medical University, Taiyuan, China
| | - Jing Ma
- Department of Neurology, First Hospital, Shanxi Medical University, No.85, Jiefang South Street, Taiyuan, China
- First Clinical Medical College, Shanxi Medical University, Taiyuan, China
| | - Yingna Feng
- Department of Neurology, First Hospital, Shanxi Medical University, No.85, Jiefang South Street, Taiyuan, China
| | - Hui Ma
- Department of Neurology, First Hospital, Shanxi Medical University, No.85, Jiefang South Street, Taiyuan, China
| | - Dan Liu
- Department of Neurology, First Hospital, Shanxi Medical University, No.85, Jiefang South Street, Taiyuan, China
| | - Xiaomin Pang
- Department of Neurology, First Hospital, Shanxi Medical University, No.85, Jiefang South Street, Taiyuan, China
| | - Xueli Chang
- Department of Neurology, First Hospital, Shanxi Medical University, No.85, Jiefang South Street, Taiyuan, China
| | - Rongjuan Zhao
- Department of Neurology, First Hospital, Shanxi Medical University, No.85, Jiefang South Street, Taiyuan, China
| | - Juan Wang
- Department of Neurology, First Hospital, Shanxi Medical University, No.85, Jiefang South Street, Taiyuan, China
| | - Junhong Guo
- Department of Neurology, First Hospital, Shanxi Medical University, No.85, Jiefang South Street, Taiyuan, China.
| | - Wei Zhang
- Department of Neurology, First Hospital, Shanxi Medical University, No.85, Jiefang South Street, Taiyuan, China.
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Song Y, Liang Y, Ma W, Crabbe MJC, Ren Z. Complete Mitochondrial Genome and Phylogenetic Position of Nurudea zhengii Ren (Insecta, Hemiptera, Aphididae). Biochem Genet 2024:10.1007/s10528-024-10717-5. [PMID: 38456973 DOI: 10.1007/s10528-024-10717-5] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/24/2024] [Indexed: 03/09/2024]
Abstract
Nurudea zhengii Ren was identified by aphid morphological characteristics as well as the gall shape and host plant species, and placed in the tribe Fordini (Hemiptera, Aphididae, Eriosomatinae). Here, its whole genome was firstly sequenced by a genome-skimming method and its mitochondrial genome (mitogenome) was assembled to examine its genetic variation and phylogenetic position. The complete mitogenome of Nurudea zhengii is 15,392 bp in length, and consists of 13 protein-coding genes, 22 tRNAs, two rRNAs and one D-loop region. The gene order follows the mitogenomes of the other Rhus gall aphids, and similarly has an AT bias with the content of 83.9%. The majority strand is A-skewed and C-skewed, and shows opposite skewness for G-skewed in the minority strands. The ratios of nonsynonymous to synonymous substitution rates of protein-coding genes are lower than one except for ATP8, which indicated that ATP8 was undergoing positive selection. Phylogenetic analysis among the Rhus gall aphids based on 13 protein-coding genes and two rRNA genes showed that N. zhengii was sister to N. shiraii, and then clustered with N. yanoniella as a group with high support value. The two species, N. shiraii and N. yanoniella, share the same host plant Rhus chinensis, while the host of N. zhengii is R. hypoleuca. However, the phylogenetic relationship indicated that the taxa sharing the same host plant were not absolutely clustered as the closest taxa at least at species level.
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Affiliation(s)
- Yuzhen Song
- School of Life Science, Shanxi University, Taiyuan, Shanxi, China
| | - Yukang Liang
- School of Life Science, Shanxi University, Taiyuan, Shanxi, China
| | - Wenli Ma
- School of Life Science, Shanxi University, Taiyuan, Shanxi, China
| | - M James C Crabbe
- School of Life Science, Shanxi University, Taiyuan, Shanxi, China
- Wolfson College, Oxford University, Oxford, OX2 6UD, UK
| | - Zhumei Ren
- School of Life Science, Shanxi University, Taiyuan, Shanxi, China.
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Cheng D, Liu D, Li X, Mi Z, Zhang Z, Tao W, Dang J, Zhu D, Fu J, Fan H. A deep learning model for accurately predicting cancer-specific survival in patients with primary bone sarcoma of the extremity: a population-based study. Clin Transl Oncol 2024; 26:709-719. [PMID: 37552409 DOI: 10.1007/s12094-023-03291-6] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/21/2023] [Indexed: 08/09/2023]
Abstract
PURPOSE Primary bone and joint sarcomas of the long bone are relatively rare neoplasms with poor prognosis. An efficient clinical tool that can accurately predict patient prognosis is not available. The current study aimed to use deep learning algorithms to develop a prediction model for the prognosis of patients with long bone sarcoma. METHODS Data of patients with long bone sarcoma in the extremities was collected from the Surveillance, Epidemiology, and End Results Program database from 2004 to 2014. Univariate and multivariate analyses were performed to select possible prediction features. DeepSurv, a deep learning model, was constructed for predicting cancer-specific survival rates. In addition, the classical cox proportional hazards model was established for comparison. The predictive accuracy of our models was assessed using the C-index, Integrated Brier Score, receiver operating characteristic curve, and calibration curve. RESULTS Age, tumor extension, histological grade, tumor size, surgery, and distant metastasis were associated with cancer-specific survival in patients with long bone sarcoma. According to loss function values, our models converged successfully and effectively learned the survival data of the training cohort. Based on the C-index, area under the curve, calibration curve, and Integrated Brier Score, the deep learning model was more accurate and flexible in predicting survival rates than the cox proportional hazards model. CONCLUSION A deep learning model for predicting the survival probability of patients with long bone sarcoma was constructed and validated. It is more accurate and flexible in predicting prognosis than the classical CoxPH model.
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Affiliation(s)
- Debin Cheng
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Dong Liu
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Xian Li
- Department of Orthopaedics, Shenzhen University General Hospital, Shenzhen, 518052, China
| | - Zhenzhou Mi
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Zhao Zhang
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Weidong Tao
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Jingyi Dang
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Dongze Zhu
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Jun Fu
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China
| | - Hongbin Fan
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China.
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Yang J, Yang N, Zhao H, Qiao Y, Li Y, Wang C, Lim KL, Zhang C, Yang W, Lu L. Adipose transplantation improves olfactory function and neurogenesis via PKCα-involved lipid metabolism in Seipin Knockout mice. Stem Cell Res Ther 2023; 14:239. [PMID: 37674230 PMCID: PMC10483743 DOI: 10.1186/s13287-023-03463-9] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 08/22/2023] [Indexed: 09/08/2023] Open
Abstract
BACKGROUND Lipodystrophy-associated metabolic disorders caused by Seipin deficiency lead to not only severe lipodystrophy but also neurological disorders. However, the underlying mechanism of Seipin deficiency-induced neuropathy is not well elucidated, and the possible restorative strategy needs to be explored. METHODS In the present study, we used Seipin knockout (KO) mice, combined with transcriptome analysis, mass spectrometry imaging, neurobehavior test, and cellular and molecular assay to investigate the systemic lipid metabolic abnormalities in lipodystrophic mice model and their effects on adult neurogenesis in the subventricular zone (SVZ) and olfactory function. After subcutaneous adipose tissue (AT) transplantation, metabolic and neurological function was measured in Seipin KO mice to clarify whether restoring lipid metabolic homeostasis would improve neurobehavior. RESULTS It was found that Seipin KO mice presented the ectopic accumulation of lipids in the lateral ventricle, accompanied by decreased neurogenesis in adult SVZ, diminished new neuron formation in the olfactory bulb, and impaired olfactory-related memory. Transcriptome analysis showed that the differentially expressed genes (DEGs) in SVZ of adult Seipin KO mice were significantly enriched in lipid metabolism. Mass spectrometry imaging showed that the levels of glycerophospholipid and diglyceride (DG) were significantly increased. Furthermore, we found that AT transplantation rescued the abnormality of peripheral metabolism in Seipin KO mice and ameliorated the ectopic lipid accumulation, concomitant with restoration of the SVZ neurogenesis and olfactory function. Mechanistically, PKCα expression was up-regulated in SVZ tissues of Seipin KO mice, which may be a potential mediator between lipid dysregulation and neurological disorder. DG analogue (Dic8) can up-regulate PKCα and inhibit the proliferation and differentiation of neural stem cells (NSCs) in vitro, while PKCα inhibitor can block this effect. CONCLUSION This study demonstrates that Seipin deficiency can lead to systemic lipid disorder with concomitant SVZ neurogenesis and impaired olfactory memory. However, AT restores lipid homeostasis and neurogenesis. PKCα is a key mediator mediating Seipin KO-induced abnormal lipid metabolism and impaired neurogenesis in the SVZ, and inhibition of PKCα can restore the impaired neurogenesis. This work reveals the underlying mechanism of Seipin deficiency-induced neurological dysfunction and provides new ideas for the treatment of neurological dysfunction caused by metabolic disorders.
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Affiliation(s)
- Jing Yang
- Department of Anatomy, Shanxi Medical University, Taiyuan, 030001, People's Republic of China
| | - Na Yang
- Department of Anatomy, Shanxi Medical University, Taiyuan, 030001, People's Republic of China
| | - Huifang Zhao
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, People's Republic of China
| | - Yan Qiao
- Analytical Instrumentation Center and State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, People's Republic of China
| | - Yanqiu Li
- Analytical Instrumentation Center and State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, People's Republic of China
| | - Chunfang Wang
- Laboratory Animal Research Center of Shanxi Medical University, Shanxi Key Laboratory of Animal and Animal Model of Human Diseases, Shanxi Medical University, Taiyuan, People's Republic of China
| | - Kah-Leong Lim
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Chengwu Zhang
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, People's Republic of China.
| | - Wulin Yang
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China.
- Cancer Hospital, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, People's Republic of China.
| | - Li Lu
- Department of Anatomy, Shanxi Medical University, Taiyuan, 030001, People's Republic of China.
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, People's Republic of China.
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Zhang F, Shi H, Xue H, Li H, Li C, Han Q. Up-regulated lncRNA SNHG9 mediates the pathogenesis of dilated cardiomyopathy via miR-326/EPHB3 axis. J Thromb Thrombolysis 2023; 55:634-648. [PMID: 37004604 DOI: 10.1007/s11239-023-02798-7] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/15/2023] [Indexed: 04/04/2023]
Abstract
Dilated cardiomyopathy (DCM) is a common cause of heart failure and also a major indication for heart transplantation. It has been reported that long non-coding RNAs (lncRNAs) are involved in the development of various cardiac diseases. However, the roles of lncRNAs in DCM are not fully understood. In this study, we uncovered that serum SNHG9 (small nucleolar RNA host gene 9, a lncRNA) serves as a biomarker for dilated cardiomyopathy. GEO datasets (GSE124405) were re-analyzed to identify the aberrant lncRNAs in the plasma sample of patients with heart failure. The receiver operating characteristic (ROC) curve was used to assess the expression alterations of the aberrant lncRNAs including SNHG9, XIST, PLCK2-AS1, KIF9-AS1, ARHGAP31-AS1, LINC00482, etc. Using the area under curve (AUC) of ROC, we found that serum SNHG9 exhibits considerable performance in distinguishing DCM from normal control and DCM stage-III from stage-I/II (New York Heart Association Class). Furthermore, we determined the serum SNHG9 expression level of the doxorubicin (Dox)-induced DCM mice model, and found that the upregulated SNHG9 is negatively associated with heart function. Besides, the deletion of SNHG9 by AAV-9 alleviated heart injury in the Dox-induced mice model. Taken together, the current results suggest that SNHG9 is a novel regulatory factor in dilated cardiomyopathy development.
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Affiliation(s)
- Fan Zhang
- Department of Cardiology, the First Hospital of Shanxi Medical University, 85 South Jiefang Road, Taiyuan, Shanxi Province, 030001, People's Republic of China
- Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Hongtao Shi
- Department of Cardiology, the First Hospital of Shanxi Medical University, 85 South Jiefang Road, Taiyuan, Shanxi Province, 030001, People's Republic of China
| | - Honghong Xue
- Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Hao Li
- Department of Cardiology, the First Hospital of Shanxi Medical University, 85 South Jiefang Road, Taiyuan, Shanxi Province, 030001, People's Republic of China
| | - Chao Li
- Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Qinghua Han
- Department of Cardiology, the First Hospital of Shanxi Medical University, 85 South Jiefang Road, Taiyuan, Shanxi Province, 030001, People's Republic of China.
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Yang X, Wang B, Guo Y, Yang F, Cheng F. Co-hydrothermal carbonization of sewage sludge and coal slime for clean solid fuel production: a comprehensive assessment of hydrochar fuel characteristics and combustion behavior. Biomass Convers Biorefin 2022:1-13. [PMID: 36573093 PMCID: PMC9773674 DOI: 10.1007/s13399-022-03601-y] [Citation(s) in RCA: 2] [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] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
The fuel characteristics and combustion behavior of the hydrochar obtained from the co-hydrothermal carbonization (co-HTC) of sewage sludge (SS) and coal slime (CS) were investigated. The results showed that a synergistic effect existed during the co-HTC process of SS and CS, which could make the mass yield, high heating value, carbon retention rate, energy recovery efficiency, fuel ratio, and energy balance of the hydrochar increase by 1.87-6.52%, 4.04-17.54%, 7.52-16.80%, 4.20-19.59%, 7.58-25.45%, and 35.26-40.08%, respectively. Furthermore, thermogravimetric and derivative thermogravimetry analysis indicated that the weight loss of co-hydrochar was significantly increased with increasing of CS ratio, and it was 38.39%, 48.14%, and 58.08% when the CS ratio was 25%, 50%, and 75% respectively. Adding CS during HTC could significantly improve the combustion performance of the hydrochar. Moreover, SS and CS were efficiently converted into solid fuels with better combustion performance and reactivity. Graphical Abstract
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Affiliation(s)
- Xiaoyang Yang
- Engineering Research Center of CO2 Emission Reduction and Resource Utilization - Ministry of Education of the People’s Republic of China, Institute of Resources and Environment Engineering, Shanxi University, Wucheng Road 92, Taiyuan, 030006 China
| | - Baofeng Wang
- Engineering Research Center of CO2 Emission Reduction and Resource Utilization - Ministry of Education of the People’s Republic of China, Institute of Resources and Environment Engineering, Shanxi University, Wucheng Road 92, Taiyuan, 030006 China
| | - Yanxia Guo
- Engineering Research Center of CO2 Emission Reduction and Resource Utilization - Ministry of Education of the People’s Republic of China, Institute of Resources and Environment Engineering, Shanxi University, Wucheng Road 92, Taiyuan, 030006 China
| | - Fengling Yang
- Engineering Research Center of CO2 Emission Reduction and Resource Utilization - Ministry of Education of the People’s Republic of China, Institute of Resources and Environment Engineering, Shanxi University, Wucheng Road 92, Taiyuan, 030006 China
| | - Fangqin Cheng
- Engineering Research Center of CO2 Emission Reduction and Resource Utilization - Ministry of Education of the People’s Republic of China, Institute of Resources and Environment Engineering, Shanxi University, Wucheng Road 92, Taiyuan, 030006 China
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Liu Y, Liang H, zhou X, Song W, Shao H, He Y, Yang Y, Guo L, Li P, Wei X, Duan W. Micro-Computed Tomography Analysis of Femoral Head Necrosis After Long-Term Internal Fixation for Femoral Neck Fracture. Orthop Surg 2022; 14:1186-1192. [PMID: 35587534 PMCID: PMC9163795 DOI: 10.1111/os.13318] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 04/21/2022] [Accepted: 04/21/2022] [Indexed: 10/29/2022] Open
Abstract
OBJECTIVE To analyze necrotic femoral head after long-term internal fixation for femoral neck fractures using micro-computed tomography (CT) for bone histomorphometry. METHODS The experimental group included six patients (two men and four women; mean age 62.00 ± 9.36 years) who underwent hip arthroplasty at 47.67 ± 14.22 months after internal fixation. Surgery was performed because of femoral head necrosis after femoral neck fracture between October 2018 and October 2020. The control group included three patients (two men and one woman; mean age 69.33 ± 4.62 years) who underwent hip arthroplasty for femoral neck fracture. In the experimental group, micro-CT quantitative analysis of the whole femur, sclerotic region around screws, screw paths, sclerotic region and screw paths, and relatively normal region was performed. The bone volume fraction (BV/TV), number of bone trabeculae (Tb.N), connection density (Conn.D), thickness of bone trabeculae (Tb.Th), separation of bone trabeculae (Tb.SP), structural model index (SMI), and bone mineral density (BMD) of each part were quantitatively analyzed. RESULTS The BV/TV (0.3180 ± 0.0617), Conn.D (6.9261 ± 2.4715/mm3 ), Tb.Th (0.3262 ± 0.0136 μm), and BMD (298.9241 ± 54.2029 g/cm3 ) of the sclerotic region around the screws were significantly higher in the experimental group than the BV/TV (0.1248 ± 0.0390), Conn.D (2.5708 ± 0.5187/mm3 ), Tb.Th (0.1713 ± 0.0333 μm), and BMD (66.5181 ± 43.0380 g/cm3 ) in the control group (P < 0.05). The BV/TV (0.2222 ± 0.0684), Tb.Th (0.2775 ± 0.0326 μm), and BMD (195.0153 ± 71.8509 g/cm3 ) in the collapsed region were significantly higher in the experimental group than in the control group (P < 0.05). In the experimental group, the volume ratio of the sclerotic region around screws and screw paths to the entire femoral head was 0.4964 ± 0.0950. CONCLUSION After internal fixation for femoral neck fracture, a large number of sclerotic plate-like trabeculae were observed around the long-term retained implant. The screw paths and surrounding sclerotic comprise approximately 50% of the femoral head volume.
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Affiliation(s)
- Yang Liu
- Department of OrthopaedicsSecond Hospital of Shanxi Medical UniversityTaiyuanChina
- Shanxi Key Laboratory of Bone and Soft Tissue Injury RepairTaiyuanChina
| | - Haoran Liang
- Department of OrthopaedicsSecond Hospital of Shanxi Medical UniversityTaiyuanChina
- Shanxi Key Laboratory of Bone and Soft Tissue Injury RepairTaiyuanChina
| | - Xin zhou
- Department of OrthopaedicsSecond Hospital of Shanxi Medical UniversityTaiyuanChina
- Shanxi Key Laboratory of Bone and Soft Tissue Injury RepairTaiyuanChina
| | - Wenjie Song
- Department of OrthopaedicsSecond Hospital of Shanxi Medical UniversityTaiyuanChina
- Shanxi Key Laboratory of Bone and Soft Tissue Injury RepairTaiyuanChina
| | - Huifeng Shao
- School of Mechanical Engineering, Hangzhou Dianzi UniversityHangzhouChina
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical Engineering, Zhejiang UniversityHangzhouChina
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical Engineering, Zhejiang UniversityHangzhouChina
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical Engineering, Zhejiang UniversityHangzhouChina
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical Engineering, Zhejiang UniversityHangzhouChina
| | - Yanfei Yang
- Department of OrthopaedicsSecond Hospital of Shanxi Medical UniversityTaiyuanChina
- Shanxi Key Laboratory of Bone and Soft Tissue Injury RepairTaiyuanChina
| | - Li Guo
- Department of OrthopaedicsSecond Hospital of Shanxi Medical UniversityTaiyuanChina
- Shanxi Key Laboratory of Bone and Soft Tissue Injury RepairTaiyuanChina
| | - Pengcui Li
- Department of OrthopaedicsSecond Hospital of Shanxi Medical UniversityTaiyuanChina
- Shanxi Key Laboratory of Bone and Soft Tissue Injury RepairTaiyuanChina
| | - Xiaochun Wei
- Department of OrthopaedicsSecond Hospital of Shanxi Medical UniversityTaiyuanChina
- Shanxi Key Laboratory of Bone and Soft Tissue Injury RepairTaiyuanChina
| | - Wangping Duan
- Department of OrthopaedicsSecond Hospital of Shanxi Medical UniversityTaiyuanChina
- Shanxi Key Laboratory of Bone and Soft Tissue Injury RepairTaiyuanChina
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10
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Abstract
Transposable elements (TEs), also known as jumping genes, are widely spread in the genomes of insects and play a considerable role in genomic evolution. Mariner/DD34D family belongs to class II transposable elements which is widely spread in the genomes of insects and have considerable role in genomic evolution. Mariner like elements (MLEs) were searched in the genomes of seven species of Rhus gall aphids belonging to six genera. In total, 121 MLEs were detected in the genomes of the seven investigated species of Rhus gall aphids, which showed a wide distribution in both close and distant related species. The sequences of MLEs ranged from 1 to 1.4 kb in length and the structural analysis of the MLEs showed that only five copies were potentially active with intact open reading frame (ORF) and terminal inverted repeats (TIRs). Phylogenetic analysis showed that all the 121 MLE sequences belonged to four subfamilies, i.e., Mauritiana, Drosophila, Vertumana and Irritans, among which Drosophila and Vertumana subfamilies were reported in aphids for the first time. Our present report revealed the diversity and distribution of MLEs in Rhus gall aphid genomes and expanded our understandings on the characterization of transposable elements in aphid genomes, which might be useful as genetic markers and tools and would play an important role in genomic evolution and adaptation of aphids.
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Affiliation(s)
- Aftab Ahmad
- School of Life Science, Shanxi University, 92 Wucheng Rd, Taiyuan, 030006, Shanxi, China
| | - Gabriel Luz Wallau
- Departamento de Entomologia e Núcleo de Bioinf Ormática, Instituto Aggeu Magalhães (IAM) - Fundação Oswaldo Cruz (FIOCRUZ), Recife, 50740-465, Brazil
| | - Zhumei Ren
- School of Life Science, Shanxi University, 92 Wucheng Rd, Taiyuan, 030006, Shanxi, China.
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