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Chen QX, Lu YY, Yang Y, Chang LG, Li Y, Yang Y, He Z, Liu JW, Ni Y, Yu SH. Stress-induced ordering evolution of 1D segmented heteronanostructures and their chemical post-transformations. Nat Commun 2024; 15:3208. [PMID: 38615045 DOI: 10.1038/s41467-024-47446-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 03/29/2024] [Indexed: 04/15/2024] Open
Abstract
Investigations of one-dimensional segmented heteronanostructures (1D-SHs) have recently attracted much attention due to their potentials for applications resulting from their structure and synergistic effects between compositions and interfaces. Unfortunately, developing a simple, versatile and controlled synthetic method to fabricate 1D-SHs is still a challenge. Here we demonstrate a stress-induced axial ordering mechanism to describe the synthesis of 1D-SHs by a general under-stoichiometric reaction strategy. Using the continuum phase-field simulations, we elaborate a three-stage evolution process of the regular segment alternations. This strategy, accompanied by easy chemical post-transformations, enables to synthesize 25 1D-SHs, including 17 nanowire-nanowire and 8 nanowire-nanotube nanostructures with 13 elements (Ag, Te, Cu, Pt, Pb, Cd, Sb, Se, Bi, Rh, Ir, Ru, Zn) involved. This ordering evolution-driven synthesis will help to investigate the ordering reconstruction and potential applications of 1D-SHs.
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Affiliation(s)
- Qing-Xia Chen
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Yu-Yang Lu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230026, China
| | - Yang Yang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230026, China
| | - Li-Ge Chang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230026, China
| | - Yi Li
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Yuan Yang
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Zhen He
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Jian-Wei Liu
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China.
| | - Yong Ni
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230026, China.
| | - Shu-Hong Yu
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China.
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Chen HE, Lu YY, Su RY, Wang HH, Chen CY, Hu JM, Kang JC, Lin KH, Pu TW. Cellular angiofibroma arising from the rectocutaneous fistula in an adult: A case report. World J Clin Cases 2024; 12:1778-1784. [PMID: 38660078 PMCID: PMC11036466 DOI: 10.12998/wjcc.v12.i10.1778] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/03/2024] [Accepted: 03/05/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND Rectocutaneous fistulae are common. The infection originates within the anal glands and subsequently extends into adjacent regions, ultimately resulting in fistula development. Cellular angiofibroma (CAF), also known as an angiomyofibroblastoma-like tumor, is a rare benign soft tissue neoplasm predominantly observed in the scrotum, perineum, and inguinal area in males and in the vulva in females. We describe the first documented case CAF that developed within a rectocutaneous fistula and manifested as a perineal mass. CASE SUMMARY In the outpatient setting, a 52-year-old male patient presented with a 2-year history of a growing perineal mass, accompanied by throbbing pain and minor scrotal abrasion. Physical examination revealed a soft, well-defined, non-tender mass at the left buttock that extended towards the perineum, without a visible opening. The initial assessment identified a soft tissue tumor, and the laboratory data were within normal ranges. Abdominal and pelvic computed tomography (CT) revealed swelling of the abscess cavity that was linked to a rectal cutaneous fistula, with a track-like lesion measuring 6 cm × 0.7 cm in the left perineal region and attached to the left rectum. Rectoscope examination found no significant inner orifices. A left medial gluteal incision revealed a thick-walled mass, which was excised along with the extending tract, and curettage was performed. Histopathological examination confirmed CAF diagnosis. The patient achieved total resolution during follow-up assessments and did not require additional hospitalization. CONCLUSION CT imaging supports perineal lesion diagnosis and management. Perineal angiofibromas, even with a cutaneous fistula, can be excised transperineally.
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Affiliation(s)
- Hao-En Chen
- Department of Surgery, Taichung Armed Forces General Hospital, Taichung 411, Taiwan
- Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
| | - Yu-Yang Lu
- Department of Pediatrics, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
| | - Ruei-Yu Su
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei 105, Taiwan
- Department of Pathology and Laboratory Medicine, Taoyuan Armed Forces General Hospital, Taoyuan 32551, Taiwan
| | - Hong-Hau Wang
- Department of Radiology, Tri-Service General Hospital Songshan Branch, National Defense Medical Center, Taipei 105, Taiwan
| | - Chao-Yang Chen
- Division of Colon and Rectal Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
| | - Je-Ming Hu
- Division of Colon and Rectal Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
| | - Jung-Cheng Kang
- Division of Colon and Rectal Surgery, Department of Surgery, Taiwan Adventist Hospital, Taipei 105, Taiwan
| | - Kuan-Hsun Lin
- Division of Thoracic Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
| | - Ta-Wei Pu
- Division of Colon and Rectal Surgery, Department of Surgery, Tri-Service General Hospital Songshan Branch, National Defense Medical Center, Taipei 105, Taiwan
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Lu YY, Lin CM, Chiang SL. Adrenal insufficiency following cerebellar intracranial hemorrhage: a case report. Front Neurol 2024; 15:1332604. [PMID: 38533414 PMCID: PMC10963601 DOI: 10.3389/fneur.2024.1332604] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 02/27/2024] [Indexed: 03/28/2024] Open
Abstract
This report presents a case of a previously healthy 58 years-old man who had suffered from persistent weakness and dizziness after a cerebellar intracranial hemorrhage (ICH). Endocrine function tests revealed low levels of plasma cortisol (3.05 μg/dL; normal range: 5-25 μg/dL) and adrenocorticotropic hormone (ACTH) (6.0 pg/mL; normal range: 10-60 pg/mL). The subsequent ACTH stimulation test suggested partial or recent hypopituitarism, resulting in adrenal gland atrophy and a subnormal cortisol response. Ultimately, the dizziness was found to be caused by undiagnosed adrenal insufficiency, which was detected when a hypotensive fainting incident occurred during rehabilitation. The symptoms improved significantly with oral prednisone supplementation. Notably, the duration of impaired hypothalamic-pituitary-adrenal axis may last as long as a year. This case highlights that adrenal insufficiency can easily be overlooked since its symptoms are similar to those commonly seen with cerebellar stroke alone. Physicians must be aware of the symptoms of adrenal insufficiency in patients with brain insults and conduct the appropriate endocrine tests to clarify the underlying comorbidity.
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Affiliation(s)
- Yu-Yang Lu
- Department of Pediatrics, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chien-Ming Lin
- Department of Pediatrics, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Shang-Lin Chiang
- Department of Physical Medicine and Rehabilitation, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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Dai H, Lu YY, Zhao J. [Challenges and strategies in the treatment of neovascular age-related macular degeneration]. Zhonghua Yan Ke Za Zhi 2024; 60:215-219. [PMID: 38462368 DOI: 10.3760/cma.j.cn112142-20230807-00026] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Neovascular age-related macular degeneration (nAMD) is a leading cause of blindness in the elderly, and anti-vascular endothelial growth factor (VEGF) therapy is currently the primary treatment approach. However, the real-world effectiveness of nAMD treatment is not always satisfactory and faces various challenges. Frequent administration and follow-up burdens can lead to decreased patient compliance during long-term treatment, resulting in suboptimal outcomes. Some lesions exhibit poor or no response to anti-VEGF treatment, leading to difficulties in maintaining or even declining visual acuity. Factors such as lesion fibrosis and tissue atrophy can contribute to visual deterioration. Therefore, standardizing and individualizing treatment plans, along with enhancing comprehensive monitoring and management throughout the disease course, are crucial improvement measures. The evidence-based guidelines for diagnosis and treatment of age-related macular degeneration in China, released in 2023, provide guidance for standardized clinical diagnosis and treatment. Meanwhile, research and development of new drugs and administration methods are anticipated for the future.
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Affiliation(s)
- H Dai
- Department of Ophthalmology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Y Lu
- Department of Ophthalmology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Zhao
- Department of Ophthalmology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
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Lu YY, Chen HE, Chen WL. Negative Association of Serum β-Cryptoxanthin With Benzene and Its Derivatives. J Am Nutr Assoc 2024:1-7. [PMID: 38227813 DOI: 10.1080/27697061.2023.2300429] [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: 10/24/2023] [Accepted: 12/24/2023] [Indexed: 01/18/2024]
Abstract
OBJECTIVE Benzene is widely recognized as a potential carcinogen. Furthermore, the deficiency of specific nutrients may render individuals more vulnerable to cancer. For instance, β-cryptoxanthin, which possesses anti-inflammatory, antioxidant, and anticancer properties, has been identified as one such nutrient. Elevated benzene levels and reduced β-cryptoxanthin levels are reportedly correlated with an augmented susceptibility to cancer. To date, whether these 2 substances are linked with one another in the above correlation is yet to be determined. METHOD This study included 1358 participants with data on the serum concentration of β-cryptoxanthin as well as benzene and its derivatives. The data were sourced from the 2003-2004 National Health and Nutrition Examination Survey, a cross-sectional survey of the noninstitutionalized US population. Headspace solid-phase microextraction with gas chromatography and mass spectrometry was used to measure serum benzene and its derivatives, while high-performance liquid chromatography using multiwavelength photodiode-array absorbance detection was employed to quantify serum β-cryptoxanthin. RESULTS In this study, male and female participants showed average β-cryptoxanthin levels of 9.10 ± 6.35 and 9.92 ± 8.95 ug/dL, respectively (p = 0.049). Styrene exhibited the strongest correlation with the change in β-cryptoxanthin concentration (β = -3.30, p for trend <0.001) upon comparing highest-quartile participants with those in the lowest quartile, followed by benzene (β = -2.95, p for trend <0.001), toluene (β = -2.90, p for trend <0.001), and ethylbenzene (β = -1.43, p for trend = 0.09). Subgroup analysis by sex displayed a statistically significant negative correlation of β-cryptoxanthin with benzene, styrene, and toluene in both the unadjusted and multivariate-adjusted models. CONCLUSIONS The sera of noninstitutionalized US individuals exhibit a negative association of β-cryptoxanthin levels with benzene and its derivatives. Styrene demonstrates the strongest link with a substantial decline in serum β-cryptoxanthin levels, followed by benzene, toluene, and ethylbenzene.
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Affiliation(s)
- Yu-Yang Lu
- Department of Pediatrics, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Hao-En Chen
- Department of Surgery, Taichung Armed Forces General Hospital, Taichung, Taiwan
| | - Wei-Liang Chen
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan
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Wang AH, Duan DH, Li XH, Leng PB, Lu YY, Zhang DD. [Investigation of serum surface active protein D and clara cell protein levels in workers exposed to silica dust in ferrous metal foundry]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:667-672. [PMID: 37805426 DOI: 10.3760/cma.j.cn121094-20220606-00305] [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] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To investigate the levels of serum surface active protein D (SP-D) and clara cell protein (CCl6) in workers exposed to black silica dust, and analyze its influencing factors. Methods: From July to September 2021, 174 workers in 37 positions exposed to silica dust in 5 ferrous metal foundry were investigated by cross-sectional research method. The exposure concentration of silica dust workers was obtained through occupational health field investigation and detection, and the general situation of the study subjects was obtained through questionnaire survey and peripheral blood was collected. Double antigen sandwich enzyme-linked immunosorbent assay (ELISA) was used to detect the concentrations of SP-D and CC16 in serum of workers. The mean values were compared by one-way ANOVA, and the influencing factors of SP-D and CC16 concentrations in serum were analyzed by ordered multiple logistic regression. Results: The time-weighted average concentration (C-TWA) of 174 workers exposed to silica dust (respirable dust) ranged from 0.09 mg/m(3)~3.58 mg/m(3), and the C-TWA overstandard rate of dust exposed workers was 32.18% (56/174) , with differences among workers in different positions (χ(2)=28.85, P<0.001) . The highest concentration of silica dust was (0.82±0.11) mg/m(3). Using C-TWA<50% OEL occupational exposure limit (OEL) as reference, serum SP-D concentration in workers with ≥50% OEL was increased (OR=4.95, 95%CI: 1.86~13.17, P=0.001) , while CC16 concentration was decreased (OR=0.15, 95%CI: 0.05~0.40, P<0.001) ; Serum CC16 concentration decreased in workers exposed to silica dust C-TWA≥OEL (OR=0.46, 95%CI: 0.28~0.98, P=0.043) . Compared with those with low occupational health literacy, the serum SP-D concentration of workers with high occupational health literacy decreased (OR=0.48, 95%CI: 0.25~0.92, P=0.027) and CC16 concentration increased (OR=2.09, 95%CI: 1.10-3.97, P=0.024) . Conclusion: When no abnormality was found in the physical examination of workers, the serum SP-D and CC16 concentration levels changed, and the change was related to the concentration of workers exposed to silica dust.
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Affiliation(s)
- A H Wang
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - D H Duan
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - X H Li
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - P B Leng
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - Y Y Lu
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - D D Zhang
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
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Liu YQ, Lu YY, Li WX, Wu ZJ, Zhang F, Wang YR, Li RS, Zhou XS. [Establishment of a prognostic model for non-nephrotic membranous nephropathy based on unbalanced data]. Zhonghua Yi Xue Za Zhi 2023; 103:1386-1392. [PMID: 37150691 DOI: 10.3760/cma.j.cn112137-20221115-02399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Objective: To explore the construction of a machine learning model based on unbalanced data to predict the progression of non-nephrotic membranous nephropathy. Methods: The clinical and pathological data of patients diagnosed with non-nephrotic membranous nephropathy by renal biopsy in Shanxi People's Hospital from January 2018 to December 2021 were retrospectively analyzed.The prediction models were constructed based on logistic regression, support vector machine (SVM) and light gradient boosting machine (lightGBM), respectively. The mixed sampling technology was used to process the unbalanced data, and the area under the receiver operating characteristic curve (AUC) was used to evaluate the predictive performance of the models. Finally, Shapley additive explanation (SHAP) was used to interpret the results of the optimal prediction model. Results: A total of 148 patients were included in the study, including 84 males and 64 females, with a mean age of (47.2±12.5) years. The follow-up time [M(Q1, Q3)] was 14(7, 20) months. Twenty-three patients (15.5%) achieved the renal end-point event in the study. The SVM model had the highest AUC (0.868, 95%CI: 0.813-0.925), followed by logistic regression (AUC=0.865, 95%CI: 0.755-0.899) and lightGBM (AUC=0.791, 95%CI: 0.690-0.882). The feature recursive elimination cross validation (RFECV) method based on random forest (RF) and the SHAP plot based on the SVM model showed that immunohistochemistry IgG, total protein (TP), anti-phospholipase A2 receptor (anti-PLA2R), blood chloride and D-Dimer were risk factors affecting the progress of non-nephrotic membranous nephropathy. Moreover, patients with high immunohistochemistry IgG, anti-PLA2R and D-Dimer had an increased risk of achieving the renal end-point event. Conclusion: The SVM model established in this study can effectively predict the progress of non-nephrotic membranous nephropathy, and provide a new method for the early identification of high-risk patients and precision therapy.
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Affiliation(s)
- Y Q Liu
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - Y Y Lu
- the Fifth Clinical Medical College of Shanxi Medical University, Taiyuan 030001, China
| | - W X Li
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - Z J Wu
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - F Zhang
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - Y R Wang
- the Fifth Clinical Medical College of Shanxi Medical University, Taiyuan 030001, China
| | - R S Li
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - X S Zhou
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
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Liu M, Deng W, Lu YY, He YZ, Huang LY, Du H. Surgical treatment of tethered cord syndrome showed promising outcome in young children with short duration. Eur Rev Med Pharmacol Sci 2023; 27:1831-1836. [PMID: 36930477 DOI: 10.26355/eurrev_202303_31545] [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: 03/18/2023]
Abstract
OBJECTIVE Aside from the severity, surgical interventions for the treatment of neurological dysfunctions remain controversial. This study aimed to find factors predicting the benefits of tethered cord syndrome (TCS) surgery. PATIENTS AND METHODS 80 children with TCS were included and followed up for pre- and post-operative factors along with neurophysiological analysis. Outcomes were assessed by univariate and multivariate analysis. RESULTS Surgical treatment not only improved preoperative signs and symptoms in 79% of TCS patients but it showed to be an efficient procedure for the occurrence of future neurological defects. Univariate analysis also revealed that surgical intervention in TCS children (age <1 year) can modulate filar lipoma location and cutaneous abnormalities three months after surgery. Neurophysiological assessment revealed only 5.0% of surgical complications in TCS patients. Two patients had cerebrospinal fluid leakage, and two cases of CNS infection were detected. CONCLUSIONS Surgical intervention is highly recommended for the prevention of neurological deficits in children with TCS. Electrophysiological monitoring revealed rare complications following the surgery.
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Affiliation(s)
- M Liu
- Department of Nerve Electrophysiology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Chen JY, Huang WQ, Li HY, Lu YY, Yao YH, Zhu YP, Liang Y. [A meta-analysis on prevalence of primary angle-closure glaucoma in the middle-aged and elderly chinese population]. Zhonghua Yan Ke Za Zhi 2022; 58:896-906. [PMID: 36348526 DOI: 10.3760/cma.j.cn112142-20220601-00275] [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: 06/16/2023]
Abstract
Objective: To evaluate the prevalence and relevant factors of primary angle-closure glaucoma (PACG) in the middle-aged and elderly (40 years old and above) Chinese population. Methods: Epidemiological literature (of English and/or Chinese language) on prevalence of PACG in China between 2000 and 2022 were retrieved from PubMed, Embase, Web of Science, CNKI, and Wanfang database. Two researchers conducted the process of document retrieval, inclusion, quality assessment and data extraction independently based on inclusion and exclusion criteria. Disagreement was resolved by consensus with a third researcher. The heterogeneity among studies was assessed by using the I2 statistics, and a corresponding model was used for the meta-analysis. Subgroup analysis (gender, age, survey date, place of residence, diagnostic criteria, and temperature zone), as well as sensitivity analysis and publication bias analysis, were conducted. Results: Twenty-three studies were included in this research. Among them, eight were of high-quality and fifteen were of middle-quality. In the past 20 years, the PACG prevalence in middle-aged and elderly (40 years and older) Chinese population was 1.35% (95%CI:1.08% to 1.61%). Chinese women (1.40%) were more likely to have PACG than men (0.96%, P<0.01). The PACG prevalence had a positive correlation with age (P<0.01). The prevalence was similar between urban (1.3%) and rural (1.2%, P=0.61) areas. The PACG prevalence from studies in which the diagnostic criteria of PACG requested the symptom of vision or optic nerve damage (1.1%) was lower than that those without such requirement (1.7%, P<0.01). In mid-temperate zone, the prevalence was higher (1.7%, P=0.02). Conclusions: The PACG prevalence in middle-aged and elderly (40 years old and above) Chinese population was 1.35% in the last 20 years. The prevalence of PACG varies across age, regions, and other variations. This risk is higher in the elderly, women, and people in cold regions among Chinese population.
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Affiliation(s)
- J Y Chen
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical University, Fujian Institute of Ophthalmology, Fuzhou 350004, China
| | - W Q Huang
- Eye Hospital of Liuzhou, Liuzhou Red Cross Hospital, Liuzhou 545001, China
| | - H Y Li
- Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha 410000, China
| | - Y Y Lu
- Department of Ophthalmology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Y H Yao
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical University, Fujian Institute of Ophthalmology, Fuzhou 350004, China
| | - Y P Zhu
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical University, Fujian Institute of Ophthalmology, Fuzhou 350004, China
| | - Yuanbo Liang
- Eye Hospital of Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
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Lu YY, Zhang YH, Yu LX, Zeng XM, Yang CZ, Ma YL, Zhou LJ, Hu HY, Xie XH, Yu ZK. [Clinical report of hoding cricoarytenoid joint reduction with visual laryngoscope under intravenous anesthesia]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1095-1101. [PMID: 36177564 DOI: 10.3760/cma.j.cn115330-20220221-00076] [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: 06/16/2023]
Abstract
Objective: To investigate the reduction effect of hoding cricoarytenoid joint reduction with visual laryngoscope under intravenous anesthesia. Methods: The therapeutic effects of 40 patients with arytenoid dislocation(AD)treated by closed reduction in the single center from January 2020 to September 2021 were retrospectively analyzed, including 21 males and 19 females, median age 48 years. The etiology, symptoms, preoperative evaluation methods, reduction mode, reduction times, and the recovery of arytenoid cartilage movement and sound after reduction were evaluated and analyzed. Results: All patients had obvious hoarseness and breath sound before treatment. Under stroboscopic laryngoscope or electronic nasopharyngoscope, different degrees of vocal cord movement disorder and poor glottic closure can be seen. There were 28 cases of left dislocation, 9 cases of right dislocation and 3 cases of bilateral dislocation. The etiology of dislocation of cricoarytenoid joint: 25 cases (62.5%) of tracheal intubation under general anesthesia were the most common causes, was as follows by laryngeal trauma, gastroscopy, cough, vomiting and so on. Among them, 28 cases of reduction were initially diagnosed in our department, and 12 cases were diagnosed later after failure of reduction treatment. Of the 40 patients, 6 underwent reduction 24 hours after dislocation; 18 cases from 3 days to 1 month; 7 cases from 1 to 3 months; 6 cases were reset in 3~6 months; Over 6 months in 3 cases. After one reduction, 10 cases (10/40, 25%) recovered normal pronunciation, 14 cases (14/40, 35%) recovered normal pronunciation after two reduction, 10 cases (10/40, 25%) recovered normal pronunciation after three times, 2 cases (2/40, 5%) recovered normal pronunciation after four times, and 1 case (2.5%) recovered normal pronunciation after five times. Thin slice CT scan of larynx and cricoarytenoid joint reconstruction showed the types of AD: subluxation in 37 cases (92.5%) and total dislocation in 3 cases; 28 cases of left dislocation, 9 cases of right dislocation and 3 cases of bilateral dislocation; 29 cases (72.5%) had posterior dislocation and 11 cases (27.5%) had anterior dislocation. All patients were treated by intravenous anesthesia with arytenoid cartilage clamped by cricoarytenoid joint reduction forceps under visual laryngoscope. The curative effect was evaluated by stroboscopic laryngoscope and/or voice analysis at 1-2 weeks after operation. The vocal cord movement returned to normal and the pronunciation was good in 37 cases (92.5%). Conclusions: Hoding cricoarytenoid joint reduction with the vision laryngoscope under intravenous anesthesia is easy to operate and the reduction effect is more stable. It is a effective method for AD.
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Affiliation(s)
- Y Y Lu
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - Y H Zhang
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - L X Yu
- Department of Anesthesiology, Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - X M Zeng
- Department of Imaging, Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - C Z Yang
- Department of Anesthesiology, Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - Y L Ma
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - L J Zhou
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - H Y Hu
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - X H Xie
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - Z K Yu
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
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11
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Lu YY, Han Y. [Progress in immune mechanism and treatment of autism spectrum disorder]. Zhonghua Er Ke Za Zhi 2022; 60:482-486. [PMID: 35488649 DOI: 10.3760/cma.j.cn112140-20211231-01098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Y Y Lu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y Han
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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Lu LL, Lu YY, Zhu ZX, Shao JX, Yao HB, Wang S, Zhang TW, Ni Y, Wang XX, Yu SH. Extremely fast-charging lithium ion battery enabled by dual-gradient structure design. Sci Adv 2022; 8:eabm6624. [PMID: 35486719 PMCID: PMC9054020 DOI: 10.1126/sciadv.abm6624] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Extremely fast-charging lithium-ion batteries are highly desirable to shorten the recharging time for electric vehicles, but it is hampered by the poor rate capability of graphite anodes. Here, we present a previously unreported particle size and electrode porosity dual-gradient structure design in the graphite anode for achieving extremely fast-charging lithium ion battery under strict electrode conditions. We develop a polymer binder-free slurry route to construct this previously unreported type particle size-porosity dual-gradient structure in the practical graphite anode showing the extremely fast-charging capability with 60% of recharge in 10 min. On the basis of dual-gradient graphite anode, we demonstrate extremely fast-charging lithium ion battery realizing 60% recharge in 6 min and high volumetric energy density of 701 Wh liter-1 at the high charging rate of 6 C.
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Affiliation(s)
- Lei-Lei Lu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department of Chemistry, Department of Applied Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yu-Yang Lu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zheng-Xin Zhu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department of Chemistry, Department of Applied Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jia-Xin Shao
- Department of Chemistry, Department of Applied Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Hong-Bin Yao
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department of Chemistry, Department of Applied Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui 230026, China
- Corresponding author. (H.-B.Y.); (Y.N.); (S.-H.Y.)
| | - Shaogang Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Tian-Wen Zhang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department of Chemistry, Department of Applied Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yong Ni
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230026, China
- Corresponding author. (H.-B.Y.); (Y.N.); (S.-H.Y.)
| | - Xiu-Xia Wang
- USTC Center for Micro- and Nanoscale Research and Fabrication
| | - Shu-Hong Yu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department of Chemistry, Department of Applied Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui 230026, China
- Institute of Innovative Materials, Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
- Corresponding author. (H.-B.Y.); (Y.N.); (S.-H.Y.)
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Lu YY, Xin JJ, Ding WC, Liang X, Jiang J, Shi DY, Wang YF. [Expression and diagnostic value of macrophage inflammatory protein-3α in patients with hepatitis B-related acute-on-chronic liver failure]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:1156-1163. [PMID: 35045630 DOI: 10.3760/cma.j.cn501113-20210809-00386] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To screen serum protein markers and evaluate their diagnostic application value in hepatitis B-related acute-on-chronic liver failure (HBV-ACLF). Methods: Serum samples of patients with HBV-ACLF, chronic hepatitis B (CHB) and normal healthy volunteers (n = 5/group) were determined by cytokine antibody chip in line with the Chinese Diagnostic Standards Study for HBV-ACLF (COSSH-ACLF) cohort. The differentially expressed proteins significance were identified by microarray analysis and prediction. The preliminary serological markers of HBV-ACLF were screened for diagnosis. The potential markers were determined by enzyme-linked immunosorbent assay (ELISA), area under the receiver operating characteristic curve (AUROC) analysis and liver tissue immunohistochemistry for the diagnosis of HBV-ACLF. Student t-test or Mann-Whitney U test were used to compare the continuous measurement data between the two groups, and analysis of variance and Kruskal-Wallis test were used to compare the continuous measurement data between multiple groups. Results: Cytokine antibody chip preliminary screening results showed that the expression levels of these six cytokines, namely, macrophage inflammatory protein 3α (MIP-3α), hepatocyte growth factor, E-selectin, osteopontin, growth differentiation factor 15 and carcinoembryonic antigen-related cellular adhesion molecule 1 were significantly increased in the HBV-ACLF group. Among them, the expression level of MIP-3α was significantly higher in the HBV-ACLF group (99.6 times higher than CHB group and 146.9 times higher than healthy volunteers' group, respectively, P < 0.0001) as validated by serum ELISA in 132 HBV-ACLF cases, 91 CHB cases and 72 healthy volunteers. AUROC analysis showed that the high expression of MIP-3α could be used as a marker to distinguish patients with HBV-ACLF from CHB. The AUROC was 0.995 (95% CI: 0.990 ~ 1.000), with sensitivity and specificity of 95.5% and. 98.9%, respectively. Immunohistochemistry showed that MIP-3α was positively expressed in HBV-ACLF-derived liver tissues, and negatively expressed in CHB-derived liver and normal liver tissues. Conclusion: Serum MIP-3α level is closely related to the pathological characteristics of HBV-ACLF. Therefore, it may be used as a potential serological marker for the diagnosis of HBV-ACLF.
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Affiliation(s)
- Y Y Lu
- Cancer Institute of Integrative Medicine, Key Laboratory of Cancer Prevention and Therapy Combining Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
| | - J J Xin
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310013, China
| | - W C Ding
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310013, China
| | - X Liang
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou 318000, China
| | - J Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310013, China
| | - D Y Shi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310013, China
| | - Y F Wang
- Cancer Institute of Integrative Medicine, Key Laboratory of Cancer Prevention and Therapy Combining Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
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Abstract
Selenium (Se) is an essential micronutrient with antioxidative properties, but previous studies have shown that extremely high circulating Se concentrations are associated with a higher prevalence of cardiovascular diseases (CVDs). To date, it remains unknown whether this association has connections with arterial calcification. A total of 982 participants with both serum Se concentration and abdominal aortic calcification (AAC) score data were enrolled from the 2013-2014 National Health and Nutrition Examination Survey (NHANES), a cross-sectional study of a noninstitutionalized population in the USA. Serum Se levels were determined by inductively coupled plasma-dynamic reaction cell-mass spectrometry. AAC was obtained from dual-energy X-ray absorptiometry and quantified by the Kauppila score system. Severe AAC was defined as Kauppila score ≥ 5. Among all participants, the mean serum Se level was 132.89 μg/L. The average AAC score was 1.51, and 11.7% had severe AAC. Compared with those in the lowest quartile of Se (< 121.1 μg/L), the highest quartile subgroup (> 143.1 μg/L) was associated with a higher mean AAC score (β-coefficient 0.88; 95% CI 0.28, 1.47; p = 0.004) and greater odds of having severe AAC (odds ratio 2.19; 95% CI 1.10, 4.36; p = 0.026) after adjusting for demographic, biochemical, and clinical characteristics. The concentrations of other circulating trace elements showed no statistically significant association with the AAC score. High serum Se levels were independently associated with an increased mean AAC score and aggravated AAC severity among noninstitutionalized US adults. Serum Se might adversely affect the cardiovascular system when the serum Se concentration exceeds 143 μg/L.
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Affiliation(s)
- Yu-Yang Lu
- Department of Internal Medicine, Tri-Service General Hospital, and School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Wei-Liang Chen
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, and School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China.
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, and School of Medicine, National Defense Medical Center, Number 325, Section 2, Chang-gong Rd, Nei-Hu District, 114, Taipei, Taiwan, Republic of China.
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Xue S, Zeng YL, Bi XL, Lu YY, Zhang DY, Zhang LL, Han X, Yang J, Fu XY, Liu DY. [PD-1/PD-L1 expression and its interaction with interferon-γ in Toxoplasma gondii-infected mice at middle and late pregnancy]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:177-187. [PMID: 34008365 DOI: 10.16250/j.32.1374.2020317] [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] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To explore the dynamic expression of programmed cell death-1 (PD-1) and its ligand PD-L1 at the maternal-fetal interface of mice post-infection with Toxoplasma gondii at early pregnancy and examine its interaction with interferon-γ (IFN-γ). METHODS A total of 20 mice at day 0 of pregnancy were randomly assigned into 4 groups, including the 12-day pregnancy control group (12 dpn group), 12-day pregnancy and infection group (12 dpi group), 18-day pregnancy control group (18 dpn group) and 18-day pregnancy and infection group (18 dpi group), respectively. On the 6th day of the pregnancy, mice in the 12 dpi and 18 dpi groups were injected intraperitoneally with 150 tachyzoites of the T. gondii PRU strain, while mice in the 12 dpn and 18 dpn groups were injected with the same volume of PBS. All mice in the four groups were sacrificed on 12th and 18th day of the pregnancy, and the number of placenta and fetus was counted and the weight of placenta and fetus was measured. Then, the placental and uterine tissues of the pregnant mice in each group were sampled for pathological examinations. The mRNA expression of PD-1, PD-L1, T. gondii surface antigen SAG-1 and IFN-γ genes was quantified using a quantitative real-time PCR (qPCR) assay, and the correlation between PD-1 and IFN-γ expression was examined. In addition, the 12 dpn group, 12 dpi group, 18 dpn group, 18 dpi group, PBS negative control of the 12 pdi group and PBS negative control of the 18 dpi group were assigned, and the PD-1 expression was determined in the uterine and placenta tissues of the pregnant mice. RESULTS Adverse pregnant outcomes were seen in mice in the 12 dpi and 18 dpi groups, including placental dysplasia and fetal maldevelopment, and the placental weights and fetal body weights were significantly lower in mice in the 12 dpi and 18 dpi groups than those in the 12 dpn and 18 dpn groups (t = 5.52, 11.44, 12.63 and 11.67, all P < 0.01). The histopathological examinations showed that the decidua and junctional regions of the placental tissues were loosely connected in the 12 dpi and 18 dpi groups, and a large number of inflammatory cells infiltration and congestion were seen in the placental and uterine tissues. qPCR assay detected significant differences in PD-1, PD-L1, IFN-γ and SAG-1 expression in the placental and uterine tissues among the 12 dpn, 12 dpi, 18 dpn and 18 dpi groups (F = 22.48, 51.23, 9.61, 47.49, 16.08, 21.52, 28.66 and 238.90, all P < 0.05), and the PD-1, PD - L1, IFN - γ and SAG - 1 expression was all significantly higher in the placental and uterine tissues of mice in the 12 dpi group than in the 12 dpn group (all P values < 0.05). The PD-1 and PD-L1 expression was significantly lower in the placental tissues of mice in the 18 dpi group than in the 18 dpn group (all P values < 0.05), and the IFN-γ and SAG-1 expression was significantly higher in the placental and uterine tissues of mice in the 18 dpi group than in the 18 dpn group (all P values < 0.05), while the PD-1 and PD-L1 expression was significantly lower in the placental and uterine tissues of mice in the 18 dpi group than in the 12 dpi group (all P values < 0.05). Immunohistochemical staining showed PD-1 expression in the inflammatory cells of the placental tissues of mice in the 12 dpi group, and no apparent PD-1 expression in the 18 dpi group, while strongly positive PD-1 expression was found in the uterine epithelium of mice in the 12 dpi group, and mildly strong expression was in the 18 dpi group. In addition, the IFN-γ mRNA expression was positively correlated with the PD-1 mRNA expression in placental (rs = 0.99, P < 0.01) and uterine tissues of mice in the 12 dpi group (rs = 0.97, P < 0.01) and in placental (rs = 0.82, P < 0.01) and uterine tissues of mice in the 18 dpi group (rs = 0.81, P < 0.01). CONCLUSIONS Following T. gondii infection at early pregnancy, the PD-1 and PD-L1 expression shows a remarkable rise at middle pregnancy and a reduction at late pregnancy in placental and uterine tissues of mice, which appears the same tendency with IFN-γ expression during the same time period, and PD-1 expression positively correlates with IFN-γ expression. The dynamic expression of PD-1 and PD-L1 on the maternal-fetal interface of mice may be mutually mediated by IFN-γ induced by T. gondii infection.
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Affiliation(s)
- S Xue
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - Y L Zeng
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - X L Bi
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - Y Y Lu
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - D Y Zhang
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - L L Zhang
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - X Han
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - J Yang
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - X Y Fu
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - D Y Liu
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
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Lu YY, Pei P, Zhang LL, Xue S, Han X, Bi XL, Zhao HY, Liu DY, Fu XY. [Study on the mechanisms of the intestinal tight-junction destruction caused by Blastocystis hominis infection in rats]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:28-34. [PMID: 33660471 DOI: 10.16250/j.32.1374.2020295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To explore the mechanism of the intestinal barrier damage caused by Blastocystis hominis infections in rats. METHODS Thirty SD rats were randomly divided into the control group, and the 1-, 3-, 6- and 9-week-infection groups, of 6 rats in each group. Rats in each infection group were orally infected with B. hominis trophozoites at a density of 2 × 108 parasites per rat, and the control group was given an equal volume of phosphate buffered saline solution. The 7-hour urine samples were collected 1, 3, 6 and 9 weeks post-infection for the measurement of the intestinal permeability. Then, rats were sacrificed using the cervical dislocation method, and the cecum specimens were collected for the detection of the intestinal epithelial cell permeability. The expression of tight junction-related Occludin and Claudin - 1 genes and apoptosis-related Bcl - 2 and Bax genes was quantified in cecum epithelial cells using the real-time fluorescent quantitative PCR (qPCR) assay, and cell apoptosis was detected in the rat cecum using the TdT-mediated dUTP nick-end labeling (TUNEL) assay. RESULTS The median urinary lactolose to mannitol ratios were 0.29, 0.72, 0.44, 0.46 and 0.38 in the control group, and the 1-, 3-, 6- and 9-week-infection groups, respectively, and the difference was statistically significant (H = 12.09, P < 0.05). B. hominis invasion and epithelial injury were observed in intestinal epithelial cells of rats infected with B. hominis, and transmission electron microscopy displayed the destruction of tight junctions between intestinal epithelial cells. The relative expression of Occludin, Claudin-1, Bcl-2 and Bax genes was 1.04, 0.62, 0.71, 0.68 and 0.96; 1.03, 0.61, 0.63, 0.76 and 0.86; 1.08, 0.70, 0.75, 0.74 and 1.03; and 1.00, 1.57, 1.33, 1.35 and 1.10 in the control group and the 1-, 3-, 6- and 9-week-infection groups, respectively, and all differences were statistically significant (F = 2.86, 2.85, 3.37 and 4.45, all P values < 0.05). The median number of positive staining cells were 1.00, 13.00, 9.00, 3.50 and 1.00 in rat cecum specimens in the control group, and the 1-, 3-, 6- and 9-week-infection groups, respectively, and the difference was statistically significant (H = 22.95, P < 0.01). CONCLUSIONS B. hominis infection may cause an increase in the rat intestinal permeability through triggering the apoptosis of intestinal epithelial cells to destroy the tight junction between intestinal epithelial cells, thereby destroying the intestinal barrier function.
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Affiliation(s)
- Y Y Lu
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China.,Co-first authors
| | - P Pei
- Zhuhai People's Hospital, Guangdong Province, China.,Co-first authors
| | - L L Zhang
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - S Xue
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - X Han
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - X L Bi
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - H Y Zhao
- The People's Hospital of Guangxi Zhuang Autonomous Region, China
| | - D Y Liu
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - X Y Fu
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
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Sun J, Zhang DY, Wang J, Lu YY. [Research progress of neural precursor cells-expressed developmentally down-regulated protein-8 in liver diseases]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:188-192. [PMID: 33685092 DOI: 10.3760/cma.j.cn501113-20190918-00341] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Neural precursor cells-expressed developmentally down-regulated protein-8 (NEDD8) is one of the important members of the ubiquitin family, which plays an important role in maintaining cell stability, cell cycle regulation, signal transduction, transcription, and translation, DNA repair, and tumorigenesis through covalently bound substrates (also known as neddylation modification). In recent years, studies have found that the dysfunction of NEDD8 and its related enzymes is common in liver diseases, and is widely involved in the biological processes of hepatitis, liver fibrosis, proliferation, invasion, apoptosis and autophagy of liver cancer cells. This article focuses on the research progress of NEDD8 in liver diseases.
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Affiliation(s)
- J Sun
- Comprehensive Liver Cancer Center, 5th Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - D Y Zhang
- Comprehensive Liver Cancer Center, 5th Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - J Wang
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China
| | - Y Y Lu
- Comprehensive Liver Cancer Center, 5th Medical Center of Chinese PLA General Hospital, Beijing 100039, China
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Yang ZL, Chen JN, Lu YY, Lu M, Wan QL, Wu GS, Luo HR. Inositol polyphosphate multikinase IPMK-1 regulates development through IP3/calcium signaling in Caenorhabditis elegans. Cell Calcium 2020; 93:102327. [PMID: 33316585 DOI: 10.1016/j.ceca.2020.102327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/31/2020] [Revised: 11/25/2020] [Accepted: 11/27/2020] [Indexed: 01/17/2023]
Abstract
Inositol polyphosphate multikinase (IPMK) is a conserved protein that initiates the production of inositol phosphate intracellular messengers and is critical for regulating a variety of cellular processes. Here, we report that the C. elegans IPMK-1, which is homologous to the mammalian inositol polyphosphate multikinase, plays a crucial role in regulating rhythmic behavior and development. The deletion mutant ipmk-1(tm2687) displays a long defecation cycle period and retarded postembryonic growth. The expression of functional ipmk-1::GFP was detected in the pharyngeal muscles, amphid sheath cells, the intestine, excretory (canal) cells, proximal gonad, and spermatheca. The expression of IPMK-1 in the intestine was sufficient for the wild-type phenotype. The IP3-kinase activity of IPMK-1 is required for defecation rhythms and postembryonic development. The defective phenotypes of ipmk-1(tm2687) could be rescued by a loss-of-function mutation in type I inositol 5-phosphatase homolog (IPP-5) and improved by a supplemental Ca2+ in the medium. Our work demonstrates that IPMK-1 and the signaling molecule inositol triphosphate (IP3) pathway modulate rhythmic behaviors and development by dynamically regulating the concentration of intracellular Ca2+ in C. elegans. Advances in understanding the molecular regulation of Ca2+ homeostasis and regulation of organism development may lead to therapeutic strategies that modulate Ca2+ signaling to enhance function and counteract disease processes. Unraveling the physiological role of IPMK and the underlying functional mechanism in C. elegans would contribute to understanding the role of IPMK in other species, especially in mammals, and benefit further research on the involvement of IPMK in disease.
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Affiliation(s)
- Zhong-Lin Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Science, Kunming, Yunnan 650201, China; Graduate University of the Chinese Academy of Science, Beijing, 100049, China
| | - Jian-Ning Chen
- Key Laboratory for Aging and Regenerative Medicine, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Yu-Yang Lu
- Key Laboratory for Aging and Regenerative Medicine, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Min Lu
- Key Laboratory for Aging and Regenerative Medicine, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Qin-Li Wan
- The Center for Precision Medicine of First Affiliated Hospital, Biomedical Translational Research Institute, Jinan University, Guangzhou, Guangdong 510632, China
| | - Gui-Sheng Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Science, Kunming, Yunnan 650201, China; Key Laboratory for Aging and Regenerative Medicine, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
| | - Huai-Rong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Science, Kunming, Yunnan 650201, China; Graduate University of the Chinese Academy of Science, Beijing, 100049, China; Key Laboratory for Aging and Regenerative Medicine, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
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Chen Y, Liu L, Xing YY, Li Q, Zhao GH, Lu YY, Yang JJ. Down-regulation of miR-365 suppresses cerebral ischemia injury by targeting IGF1R. J BIOL REG HOMEOS AG 2020; 34:1857-1862. [PMID: 33103413 DOI: 10.23812/20-321-l] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Y Chen
- Department of Geriatrics, Shandong Provincial Third Hospital, Jinan, China
| | - L Liu
- Department of Neurology, Shandong Provincial Third Hospital, Jinan, China
| | - Y Y Xing
- Department of Neurology, Shandong Provincial Third Hospital, Jinan, China
| | - Q Li
- Department of Neurology, Shandong Provincial Third Hospital, Jinan, China
| | - G H Zhao
- Department of Neurology, Shandong Provincial Third Hospital, Jinan, China
| | - Y Y Lu
- Department of Neurology, Shandong Provincial Third Hospital, Jinan, China
| | - J J Yang
- Department of General practice, Shandong Provincial Third Hospital, Jinan, China
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20
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Lu YY, Li J, Wang HX, Che CW, Shi DM. [Treatment of giant rhinolith by acid solution: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:695-697. [PMID: 32668881 DOI: 10.3760/cma.j.cn115330-20191126-00726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y Y Lu
- Department of Otorhinolaryngology Head and Neck Surgery, Chaoyang Hospital, Affiliated to the Capital Medical University, Beijing 100043, China
| | - J Li
- Department of Otorhinolaryngology Head and Neck Surgery, Chaoyang Hospital, Affiliated to the Capital Medical University, Beijing 100043, China
| | - H X Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Chaoyang Hospital, Affiliated to the Capital Medical University, Beijing 100043, China
| | - C W Che
- Department of Otorhinolaryngology Head and Neck Surgery, Chaoyang Hospital, Affiliated to the Capital Medical University, Beijing 100043, China
| | - D M Shi
- Department of Otorhinolaryngology Head and Neck Surgery, Chaoyang Hospital, Affiliated to the Capital Medical University, Beijing 100043, China
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21
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Yan H, Aizhan R, Lu YY, Li X, Wang X, Yi YL, Shan YY, Liu BF, Zhou Y, Lü X. A novel bacteriocin BM1029: physicochemical characterization, antibacterial modes and application. J Appl Microbiol 2020; 130:755-768. [PMID: 32749036 DOI: 10.1111/jam.14809] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 06/15/2020] [Accepted: 07/22/2020] [Indexed: 12/28/2022]
Abstract
AIM Bacteriocins with antimicrobial activity are considered as potential natural bio-preservatives to control the growth of food spoilage bacteria. The aim of this work was to characterize a novel bacteriocin BM1029 discovered from Lactobacillus crustorum MN047 and evaluate its antibacterial mechanism. METHODS AND RESULTS Bacteriocin BM1029 was purified by cation-exchange chromatography and reversed-phase chromatography. Antibacterial activity assay showed that BM1029 is antagonistic against both Gram-positive and Gram-negative bacteria. Furthermore, it was found that BM1029 showed low haemolysis with high stability to the pretreatment with different temperatures, pH and surfactants. Moreover electron microscopy and flow cytometry suggested that BM1029 inhibit indicator strains by damaging the cell envelope integrity. Cell cycle assay suggested that BM1029 arrested cell cycle in R-phase. CONCLUSION The novel bacteriocin BM1029 showed high bactericidal activity against Escherichia coli and Staphylococcus aureus through a cell envelope-associated mechanism. SIGNIFICANCE AND IMPACT OF THE STUDY Application of BM1029 inhibited the growth of indicator strains on beef meat storage at 4°C suggesting that this bacteriocin is promising to be used as a novel preservative in food processing and preservation.
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Affiliation(s)
- H Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - R Aizhan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Y Y Lu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - X Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - X Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Y L Yi
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Y Y Shan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - B F Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Y Zhou
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - X Lü
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
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22
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He Z, Chang LG, Lin Y, Shi FL, Li ZD, Wang JL, Li Y, Wang R, Chen QX, Lu YY, Zhang QH, Gu L, Ni Y, Liu JW, Wu JB, Yu SH. Real-Time Visualization of Solid-Phase Ion Migration Kinetics on Nanowire Monolayer. J Am Chem Soc 2020; 142:7968-7975. [PMID: 32266814 DOI: 10.1021/jacs.0c02137] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ion migration has been recognized as a critical step in determining the performance of numerous devices in chemistry, biology, and material science. However, direct visualization and quantitative investigation of solid-phase ion migration among anisotropic nanostructures have been a challenging task. Here, we report an in-situ ChemTEM method to quantitatively investigate the solid-phase ion migration process among coassembled nanowires (NWs). This complicated process was tracked within a NW and between NWs with an obvious nanogap, which was revealed by both phase field simulation and ab initio modeling theoretical evaluation. A migration "bridge" between neighboring NWs was observed. Furthermore, these new observations could be applied to migration of other metal ions on semiconductor NWs. These findings provide critical insights into the solid-phase ion migration kinetics occurring in nanoscale systems with generality and offer an efficient tool to explore other ion migration processes, which will facilitate fabrication of customized and new heteronanostructures in the future.
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Affiliation(s)
- Zhen He
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Li Ge Chang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China
| | - Yue Lin
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Feng-Lei Shi
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ze-Dong Li
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Jin-Long Wang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Yi Li
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Rui Wang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Qing-Xia Chen
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Yu-Yang Lu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China
| | - Qing-Hua Zhang
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Lin Gu
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Yong Ni
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China
| | - Jian-Wei Liu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Jian-Bo Wu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Shu-Hong Yu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, University of Science and Technology of China, Hefei 230026, China
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23
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Xue S, Zhang YP, Lu YY, Li F, Liu FF, Li TT, Liu YY, Wang JB. [Salvage therapy of haploidentical hematopoietic stem cell transplantation for one hepatosplenic αβ T-cell lymphoma: a case report]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:786. [PMID: 31648487 PMCID: PMC7342436 DOI: 10.3760/cma.j.issn.0253-2727.2019.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- S Xue
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
| | - Y P Zhang
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
| | - Y Y Lu
- Department of Pathology, Aerospace Central Hospital, Beijing 100049, China
| | - F Li
- Department of Pathology, Aerospace Central Hospital, Beijing 100049, China
| | - F F Liu
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
| | - T T Li
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
| | - Y Y Liu
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
| | - J B Wang
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
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24
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Zhou F, Li Z, Lu YY, Shen B, Guan Y, Wang XX, Yin YC, Zhu BS, Lu LL, Ni Y, Cui Y, Yao HB, Yu SH. Diatomite derived hierarchical hybrid anode for high performance all-solid-state lithium metal batteries. Nat Commun 2019; 10:2482. [PMID: 31171790 PMCID: PMC6554300 DOI: 10.1038/s41467-019-10473-w] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 05/10/2019] [Indexed: 11/17/2022] Open
Abstract
Lithium metal based anode with hierarchical structure to enable high rate capability, volume change accommodation, and dendritic suppression is highly desirable for all-solid-state lithium metal battery. However, the fabrication of hierarchical lithium metal based anode is challenging due to the volatility of lithium. Here, we report that natural diatomite can act as an excellent template for constructing hierarchical silicon-lithium based hybrid anode for high performance all-solid-state lithium metal battery. This hybrid anode exhibits stable lithium stripping/plating performance over 1000 h with average overpotential lower than 100 mV without any short circuit. Moreover, all-solid-state full cell using this lithium metal composite anode to couple with lithium iron phosphate cathode shows excellent cycling stability (0.04% capacity decay rate for 500 cycles at 0.5C) and high rate capability (65 mAh g−1 at 5C). The present natural diatomite derived hybrid anode could further promote the fabrication of high performance all-solid-state lithium batteries from sustainable natural resources. Lithium metal is the anode of choice for the next-generation high energy density batteries. To address the key technological challenges, the authors report a hybrid Li anode design with hierarchical pores structure derived from natural diatomite and improved electrochemical performance in all-solid-state lithium batteries.
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Affiliation(s)
- Fei Zhou
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Zheng Li
- Department of Polymer Science and Engineering, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Yu-Yang Lu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Bao Shen
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Yong Guan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Xiu-Xia Wang
- Center for Micro- and Nanoscale Research and Fabrication, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Yi-Chen Yin
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Bai-Sheng Zhu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Lei-Lei Lu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Yong Ni
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Yi Cui
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Hong-Bin Yao
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, 230026, Hefei, Anhui, China.
| | - Shu-Hong Yu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, 230026, Hefei, Anhui, China. .,National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, Anhui, China.
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Abstract
Liver cancer is one of the most common malignant tumors in China, ranking fifth in malignant tumors and the third in tumor-related deaths. As a membrane-related protein, the asymmetric distribution of cell fate determinant Numb plays a key role in cell differentiation. Research reports that Numb may be closely associated to the occurrence and development of tumors. Recently, scholars have gradually valued its important role in liver cancer. This article briefly reviews the structure of Numb molecule, relationship between Numb and tumorigenesis, the molecular mechanism of Numb-regulated tumors, and the role of Numb in the development of liver cancer.
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Affiliation(s)
- X R Yang
- Comprehensive Liver Cancer Center, 302 Military Hospital of Chinese Army, Beijing 100039, China
| | - J Sun
- Comprehensive Liver Cancer Center, 302 Military Hospital of Chinese Army, Beijing 100039, China
| | - J Wang
- Beijing Institute of Basic Medical Sciences, Beijing 100850, China
| | - Y Y Lu
- Comprehensive Liver Cancer Center, 302 Military Hospital of Chinese Army, Beijing 100039, China
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26
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Yin YC, Yu ZL, Ma ZY, Zhang TW, Lu YY, Ma T, Zhou F, Yao HB, Yu SH. Bio-inspired low-tortuosity carbon host for high-performance lithium-metal anode. Natl Sci Rev 2018; 6:247-256. [PMID: 34691863 PMCID: PMC8291544 DOI: 10.1093/nsr/nwy148] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/15/2018] [Accepted: 11/18/2018] [Indexed: 11/14/2022] Open
Abstract
Lithium metal is one of the most promising anode materials for high-energy-density Li batteries. However, low stability caused by dendrite growth and volume change during cycling hinders its practical application. Herein, we report an ingenious design of bio-inspired low-tortuosity carbon with tunable vertical micro-channels to be used as a host to incorporate nanosized Sn/Ni alloy nucleation sites, which can guide Li metal's plating/stripping and meanwhile accommodate the volume change. The pore sizes of the vertical channels of the carbon host can be regulated to investigate the structure–performance correlation. After compositing Li, the bio-inspired carbon host with the smallest pore size (∼14 μm) of vertical channels exhibits the lowest overpotential (∼18 mV at 1 mA cm−2), most stable tripping/plating voltage profiles, and best cycling stability (up to 500 cycles) in symmetrical cells. Notably, the carbon/Li composite anode is more rewarding than Li foil when coupled with LiFePO4 in full cells, exhibiting a much lower polarization effect, better rate capability and higher capacity retention (90.6% after 120 cycles). This novel bio-inspired design of a low-tortuosity carbon host with nanoalloy coatings may open a new avenue for fabricating advanced Li-metal batteries with high performance.
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Affiliation(s)
- Yi-Chen Yin
- Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei 230026, China
| | - Zhi-Long Yu
- Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei 230026, China
| | - Zhi-Yuan Ma
- Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei 230026, China
| | - Tian-Wen Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Yu-Yang Lu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026, China
| | - Tao Ma
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Fei Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Hong-Bin Yao
- Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei 230026, China
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Shu-Hong Yu
- Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei 230026, China
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
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27
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Dong JK, Du GF, Wang J, Zhao XK, Wu J, Lu YY, Cheng ML. [Study on mechanism for dasatinib inhibiting PDGFR/Bcr-Abl signaling pathway in hepatic stellate cells mediated hepatic fibrosis]. Zhonghua Gan Zang Bing Za Zhi 2018; 26:855-857. [PMID: 30616322 DOI: 10.3760/cma.j.issn.1007-3418.2018.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J K Dong
- Guizhou Medical University & Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - G F Du
- 302 Military Hospital of China, Beijing 100069, China
| | - J Wang
- Academy of Military Medical Sciences, Beijing 100850, China
| | - X K Zhao
- Guizhou Medical University & Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - J Wu
- Guizhou Medical University & Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - Y Y Lu
- 302 Military Hospital of China, Beijing 100069, China; Guizhou Medical University, Guiyang 550004, China
| | - M L Cheng
- Guizhou Medical University & Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
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28
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Yu SK, Xu YW, Zhang Y, Blacher J, Lu YY, Xiong J, Chi C, Teliewubai J. P4779Comparison of ankle-brachial index and upstroke time per cardiac cycle in association with target organ damage in elderly Chinese: the Northern Shanghai Study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S K Yu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - Y W Xu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - Y Zhang
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - J Blacher
- Hospital Hotel-Dieu, Diagnosis and Therapeutic Center, Paris, France
| | - Y Y Lu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - J Xiong
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - C Chi
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - J Teliewubai
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
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29
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Chi C, Fan XM, Zhou YW, Lu YY, Teliewubai J, Xiong J, Yu SK, Ji HW, Zhang Y, Xu YW. P1512Comparison of arterial stiffness parameters in hypertensive and type-2 diabetic patients: the Northern Shanghai Study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- C Chi
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - X M Fan
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - Y W Zhou
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - Y Y Lu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - J Teliewubai
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - J Xiong
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - S K Yu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - H W Ji
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - Y Zhang
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - Y W Xu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
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30
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Yu ZL, Yang N, Zhou LC, Ma ZY, Zhu YB, Lu YY, Qin B, Xing WY, Ma T, Li SC, Gao HL, Wu HA, Yu SH. Bioinspired polymeric woods. Sci Adv 2018; 4:eaat7223. [PMID: 30105307 PMCID: PMC6086613 DOI: 10.1126/sciadv.aat7223] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/29/2018] [Indexed: 05/19/2023]
Abstract
Woods provide bioinspiration for engineering materials due to their superior mechanical performance. We demonstrate a novel strategy for large-scale fabrication of a family of bioinspired polymeric woods with similar polyphenol matrix materials, wood-like cellular microstructures, and outstanding comprehensive performance by a self-assembly and thermocuring process of traditional resins. In contrast to natural woods, polymeric woods demonstrate comparable mechanical properties (a compressive yield strength of up to 45 MPa), preferable corrosion resistance to acid with no decrease in mechanical properties, and much better thermal insulation (as low as ~21 mW m-1 K-1) and fire retardancy. These bioinspired polymeric woods even stand out from other engineering materials such as cellular ceramic materials and aerogel-like materials in terms of specific strength and thermal insulation properties. The present strategy provides a new possibility for mass production of a series of high-performance biomimetic engineering materials with hierarchical cellular microstructures and remarkable multifunctionality.
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Affiliation(s)
- Zhi-Long Yu
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, Hefei Science Center of CAS, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Ning Yang
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, Hefei Science Center of CAS, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Li-Chuan Zhou
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei 230027, China
| | - Zhi-Yuan Ma
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, Hefei Science Center of CAS, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Yin-Bo Zhu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei 230027, China
| | - Yu-Yang Lu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei 230027, China
| | - Bing Qin
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, Hefei Science Center of CAS, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Wei-Yi Xing
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Tao Ma
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, Hefei Science Center of CAS, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Si-Cheng Li
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, Hefei Science Center of CAS, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Huai-Ling Gao
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, Hefei Science Center of CAS, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Heng-An Wu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei 230027, China
| | - Shu-Hong Yu
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, Hefei Science Center of CAS, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
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Lu LL, Lu YY, Xiao ZJ, Zhang TW, Zhou F, Ma T, Ni Y, Yao HB, Yu SH, Cui Y. Wood-Inspired High-Performance Ultrathick Bulk Battery Electrodes. Adv Mater 2018; 30:e1706745. [PMID: 29603415 DOI: 10.1002/adma.201706745] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 01/19/2018] [Indexed: 06/08/2023]
Abstract
Ultrathick electrode design is a promising strategy to enhance the specific energy of Li-ion batteries (LIBs) without changing the underlying materials chemistry. However, the low Li-ion conductivity caused by ultralong Li-ion transport pathway in traditional random microstructured electrode heavily deteriorates the rate performance of ultrathick electrodes. Herein, inspired by the vertical microchannels in natural wood as the highway for water transport, the microstructures of wood are successfully duplicated into ultrathick bulk LiCoO2 (LCO) cathode via a sol-gel process to achieve the high areal capacity and excellent rate capability. The X-ray-based microtomography demonstrates that the uniform microchannels are built up throughout the whole wood-templated LCO cathode bringing in 1.5 times lower of tortuosity and ≈2 times higher of Li-ion conductivity compared to that of random structured LCO cathode. The fabricated wood-inspired LCO cathode delivers high areal capacity up to 22.7 mAh cm-2 (five times of the existing electrode) and achieves the dynamic stress test at such high areal capacity for the first time. The reported wood-inspired design will open a new avenue to adopt natural hierarchical structures to improve the performance of LIBs.
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Affiliation(s)
- Lei-Lei Lu
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yu-Yang Lu
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zi-Jian Xiao
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Tian-Wen Zhang
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Fei Zhou
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Tao Ma
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yong Ni
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Hong-Bin Yao
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Shu-Hong Yu
- Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yi Cui
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
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Lu YY, Huang H, Mao WL, Liu RH, Hu MJ, Shao LX, Hu MP, Li J. [A concentration-response observation of hydromorphone combined with ropivacaine in labor analgesia]. Zhonghua Yi Xue Za Zhi 2017; 97:3297-3300. [PMID: 29141373 DOI: 10.3760/cma.j.issn.0376-2491.2017.42.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the median effective dose (ED(50)) of hydromorphone and the appropriate concentration of ropivacaine combined with hydromorphone in epidural labor analgesia. Methods: One hundred and forty nulliparous women undergoing labor selected for delivery with epidural analgesia were enrolled in our hospital from January to June 2016. The first of top 50 women received 0.12% ropivacaine plus 20 μg/ml hydromorphone complex solution, then sequential women were used the modified sequential method to determine the ED(50) and ED(95) of hydromorphone. The other 90 women were randomly divided and receieved 0.08% ropivacaine and 15 μg/ml hydromorphone(H1 group), 0.10% ropivacaine and 15 μg/ml hydromorphone (H2 group), 0.12% ropivacaine and 15 μg/ml hydromorphone (group H3) respectively for epidural labor analgesia. In the course of labor, block levels of epidural analgesia, the Bromage scores, analgesia scores and fetal heart rate-uterine concraction were monitored. In addition, onset time of anesthesia, labor time, mode of delivery, cases of increased oxytocin using, neonatal Apgar score, incidence of nausea and vomiting, itching and fetal heart reduction were recorded. Results: The ED(50) and ED(95) values of hydromorphone were 10.49 (95% CI: 8.89-11.79) and 15.15 (95% CI: 13.25-22.25) μg/ml respectively. The onset time in group H1 was significantly longer than those in group H2 and H3((14.23±3.82) , ( 11.32±2.16), (10.83±2.56)min, respectively), the difference was statistically significant (t=5.854, 6.212, all P<0.05). Analgesic VAS score at 30, 60 and 90 min time points in H1 group was significantly higher than that in H2 group and H3 group (all P<0.05). VAS score at withdrawal in H1 group was significantly higher than that in group H3 ( (3.25±0.75) vs (0.27±0.12) ), the difference was statistically significant ( t=9.314, P<0.05). VAS scores at the fourth, fifth, sixth contractions after analgesia in H1 group were significantly higher than those in H2 and H3 groups (all P<0.05). The incidence of motor nerve block in group H3 was higher than that in group H1 and group H2 (26.67%, 6.66%, 3.33%, respectively), the difference was statistically significant (χ(2)=6.413, 4.320, all P<0.05). Conclusions: 0.10% ropivacaine combined with 15 μg/ml hydromorphone has a good analgesic effect, slight motor block, high safety and worthy clinical application for labor analgesia.
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Affiliation(s)
- Y Y Lu
- Department of Anesthesiology, Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
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Cheng YB, Lu YY, Chang FR, Wang SW, Chen CY, Wu YC. Anti-Angiogenic diketopiperazines from the Endophytic Fungus Diaporthe arecae Associated with Mangrove Kandelia obovate. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- YB Cheng
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - YY Lu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - FR Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - SW Wang
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - CY Chen
- Department of Physical Therapy, Tzu-Hui Institute of Technology, Pingtung, Taiwan
| | - YC Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung, Taiwan
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Wang CY, Lu YY, Qin WH. [Determination of 1-hydroxy-2-butanone in urine by gas chromatography]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:775-777. [PMID: 28043255 DOI: 10.3760/cma.j.issn.1001-9391.2016.10.015] [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: 06/06/2023]
Abstract
Objective: To establish a method for the determination of 1-hydroxy-2-butanone in urine by gas chromatography. Methods: Urine samples were acidified with hydrochloric acid, and then stored in the refrigerator . After thawing under natural conditions, urine volume of 2.0 ml was extracted by C18 solid phase, using methanol volume of 2.0 ml elution, detected by gas chromatography with FID detector and quantified by external standard method. Results: The measurement range of method is 0.986 ~32.88 μg/ml, correlation coefficient (r) =0.999 7, detection limit is 0.13 μg/ml; The recovery is 88.1% ~92.2% ; The precision is 1.4% ~3.2%. Conclusion: This method has a high sensitivity and simple processing. All technical indicators can meet the requirements of the determination method.
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Affiliation(s)
- C Y Wang
- Henan Provincial Institute of Occupational Health, Zhengzhou 450052, China
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35
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Lu YY, Fang F. [The effect of human cytomegalovirus microRNA on virus latent infection]. Zhonghua Er Ke Za Zhi 2016; 54:632-634. [PMID: 27510881 DOI: 10.3760/cma.j.issn.0578-1310.2016.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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36
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Abstract
Deregulation of microRNAs (miRNAs) is implicated in the initiation and progression of gastric cancer (GC). Previous studies have demonstrated that miR-204 was downregulated in GC tissues. However, its expression profile in serum samples and its potential for clinical value remain unknown. Real-time PCR was performed to evaluate the expression level of serum miR-204 in patients with GC. The association between serum miR-204 expression level and the clinical outcome of GC was then investigated. Our results showed that the expression of miR-204 in serum samples from GC patients was significantly lower than that in the healthy controls (P < 0.01). Serum miR-204 expression level of GC patients was significantly upregulated after receiving surgical resection (P < 0.01). In addition, serum miR-204 was associated with lymph node metastasis (P = 0.016), tumor differentiation (P = 0.001), and TNM stage (P = 0.005). GC patients with low serum miR-204 expression had shorter overall survival than those with high serum miR-204 expression (P = 0.004). Multivariate analysis revealed that serum miR-204 expression level was an independent risk factor for this malignant disease (HR = 3.629, 95%CI = 2.828-8.146, P = 0.015). In conclusion, our findings indicate that serum miR-204 may be employed as a novel biomarker for monitoring the treatment response and predicting the prognosis of GC.
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Affiliation(s)
- X Chen
- Qingdao University Medical College, Qingdao, Shandong, China.,Department of Gastroenterology, Yantai Municipal Laiyang Central Hospital, Yantai, Shandong, China
| | - X S Liu
- Qingdao University Medical College, Qingdao, Shandong, China.,Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - H Y Liu
- Department of Infection Diseases, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Y Y Lu
- Qingdao University Medical College, Qingdao, Shandong, China.,Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Y Li
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, Shandong, China
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37
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Jiang YQ, Zhu YX, Chen XL, Xu X, Li F, Fu HJ, Shen CY, Lu YY, Zhuang QJ, Xu G, Cai YY, Zhang Y, Liu SS, Zhu MY, Li SH. Impact of adherence to GOLD guidelines on 6-minute walk distance, MRC dyspnea scale score, lung function decline, quality of life, and quality-adjusted life years in a Shanghai suburb. Genet Mol Res 2015; 14:8861-70. [PMID: 26345817 DOI: 10.4238/2015.august.3.9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We performed a 1-year cluster-randomized field trial to assess the effect of standardized management of chronic obstructive pulmonary disease (COPD) on lung function and quality of life (QOL) measures in patients in China. We used the Global Initiative for Chronic Obstructive Lung Disease (GOLD) treatment guidelines and assessed indexes including pulmonary function, QOL, quality-adjusted life years (QALY), Medical Research Council (MRC) dyspnea scale, 6-min walk distance (6-MWD), number of emergency visits, and frequency of hospitalization. Of a total of 711 patients with chronic cough and asthma, 132 were diagnosed as having COPD and 102 participated in this study [intervention group (N = 47); control group (N = 55)]. We found that adherence to GOLD guidelines had a perceivable impact on 6-MWD, MRC dyspnea scale score, and QOL. The average QALY increased by 1.42/person/year in the intervention group, but declined by 0.95/person/year in the control group. We conclude that standardized management improves disease severity, QOL, and QALY in COPD patients when treatment protocols adhere to GOLD guidelines.
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Affiliation(s)
- Y Q Jiang
- Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Y X Zhu
- Songjiang Branch of Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - X L Chen
- Songjiang Branch of Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - X Xu
- Songjiang Branch of Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - F Li
- Songjiang Branch of Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - H J Fu
- Xiaokunshan Town Primary Care of Songjiang District, Shanghai, China
| | - C Y Shen
- Xiaokunshan Town Primary Care of Songjiang District, Shanghai, China
| | - Y Y Lu
- Xiaokunshan Town Primary Care of Songjiang District, Shanghai, China
| | - Q J Zhuang
- Xinbang Town Primary Care of Songjiang District, Shanghai, China
| | - G Xu
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Y Y Cai
- Institute of Respiratory Disease, Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Y Zhang
- Shanghai Songjiang District Public Health Bureau, Shanghai, China
| | - S S Liu
- Shanghai Songjiang District Center for Diseases Control and Prevention, Shanghai, China
| | - M Y Zhu
- Shanghai Songjiang District Center for Diseases Control and Prevention, Shanghai, China
| | - S H Li
- Songjiang Branch of Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
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Xue CS, Lu YY, Xiao SQ, Duan YX. First Report of Phomopsis longicolla Causing Leaf Spot on Soybean in China. Plant Dis 2015; 99:290. [PMID: 30699596 DOI: 10.1094/pdis-09-14-0945-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
During July 2012, leaf spots affecting 60% of the leaves were observed on soybean cultivar He Feng 60 in fields near Shenyang City, Liaoning Province, leading to 5 to 10% yield loss. The leaf spots were associated with the leaf margins and were irregularly shaped, with brown to black margins and surrounded by a thin, yellow halo. Often, several spots merged to form large necrotic areas, which contained numerous pycnidia on the underside of the leaf. Small pieces (5 mm2) were excised from the margin of diseased and healthy tissue, surface-sterilized in 70% ethanol solution for 30 s and 0.1% mercuric chloride solution for 1 min, washed in three changes of sterile distilled water, and transferred to plates containing potato dextrose agar (PDA). Cultures were maintained in an incubator at 25°C with a 12 h dark/light photoperiod for 5 to 7 days. On PDA, colonies were white with yellow areas, floccose, dense, and moderately fast growing, attaining a diameter of 3.9 mm after 5 days and 9.0 mm after 14 days. Finally, large black stromata appeared after 28 days at 25°C. The conidiomata pycnidia were black, stomatic, globose, length 83.6 to 232 μm, width 37.9 to 146.3 μm and produced α-conidia that were unicellular, hyaline, sometimes two-guttulate, length 4.75 to 8.25 μm, width 1.50 to 3.00 μm. β-Conidia were not observed. To confirm the morphological identification, the ribosomal internal transcribed spacers (ITS1-5.8S-ITS2) from isolates were sequenced (GenBank Accession No. KC460334). The PCR products were cloned into a pMD-19T Cloning Vector (Sangon Biotech, Shanghai, China). The clones were purified with TIANprep Mini Plasmid Kit (Tiangen Biotech, Beijing, China) to get the full-length ITS sequence. BLAST analysis of the isolates showed 100% nucleotide sequence identity with Phomopsis longicolla (AY745021). Four additional primer pairs-large subunit (NL1/NL4), beta-tublin gene (Bt2a/Bt2b), translation elongation factor 1α gene(EF1-728F/EF1-986R), and act gene(ACT-512F/ACT-783R) (1,2)-were amplified and sequenced as described above. The large subunit gene, β-tubulin gene, and translation elongation factor 1α gene from isolates were sequenced (Sangon Biotech). BLAST analysis indicated that the isolates had 100% nucleotide sequence identity with P. longicolla (AB107259, HQ333514, and AF398896). Because the act gene sequence of P. longicolla was not in the NCBI database, this sequence had 94% nucleotide sequence identity with P. cuppatea (JN230389). To fulfill Koch's postulates, five leaves on five healthy soybean plants were inoculated with a conidial suspension (106/ml). Plants inoculated with sterile water served as the noninoculated controls. Plants were incubated in the greenhouse at 25°C. All the inoculated leaves developed pinhead spots on the leaves, gradually increasing to large brown spots. Spots were irregularly shaped, brown and necrotic in the center, and surrounded by a yellow halo. Black pycnidia appeared after 10 days, whereas the noninoculated control plants remained asymptomatic. P. longicolla was consistently recovered from all inoculated plants, except the control. Morphological description of isolates was similar to that of Hobbs (3). However, as described by Hobbs and others, P. longicolla conidiomata pycnidia have prominent necks more than 200 μm long, opening by apical ostioles; locules are uniostiolate or multiostiolate, globose, up to 500 μm wide. The pycnidia size of isolates by frozen section method was smaller than that of Hobbs. Based on morphological and sequence comparisons, the pathogen of leaf spot disease is caused by P. longicolla. This is the first reported leaf spot caused by P. longicolla on soybean in China. References: (1) T. Boekhou et al. Stud. Mycol. 38:75, 1995. (2) P. W. Crous et al. Stud. Mycol. 75:37, 2013. (3) T. W. Hobbs et al. Mycologia 77:535, 1985.
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Affiliation(s)
- C S Xue
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
| | - Y Y Lu
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
| | - S Q Xiao
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
| | - Y X Duan
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
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Goh CH, Lu YY, Lau BL, Oy J, Lee HK, Liew D, Wong A. Brain and spinal tumour. Med J Malaysia 2014; 69:261-267. [PMID: 25934956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This study reviewed the epidemiology of brain and spinal tumours in Sarawak from January 2009 till December 2012. The crude incidence of brain tumour in Sarawak was 4.6 per 100,000 population/year with cumulative rate 0.5%. Meningioma was the most common brain tumour (32.3%) and followed by astrocytoma (19.4%). Only brain metastases showed a rising trend and cases were doubled in 4 years. This accounted for 15.4% and lung carcinoma was the commonest primary. Others tumour load were consistent. Primitive neuroectodermal tumour (PNET) and astrocytoma were common in paediatrics (60%). We encountered more primary spinal tumour rather than spinal metastases. Intradural schwannoma was the commonest and frequently located at thoracic level. The current healthcare system in Sarawak enables a more consolidate data collection to reflect accurate brain tumours incidence. This advantage allows subsequent future survival outcome research and benchmarking for healthcare resource planning.
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Affiliation(s)
- C H Goh
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia.
| | - Y Y Lu
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
| | - B L Lau
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
| | - J Oy
- Sarawak General Hospital, Department of Pathology, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
| | - H K Lee
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
| | - D Liew
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
| | - A Wong
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
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Li HY, Ru GX, Zhang J, Lu YY. Genetic diversity in wild populations of Paulownia fortune. Genetika 2014; 50:1330-1337. [PMID: 25739286 DOI: 10.7868/s0016675814100075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The genetic diversities of 16 Paulownia fortunei populations involving 143 individuals collected from 6 provinces in China were analyzed using amplified fragment length polymorphism (AFLP). A total of 9 primer pairs with 1169 polymorphic loci were screened out, and each pair possessed 132 bands on average. The percentage of polymorphic bands (98.57%), the effective number of alleles (1.2138-1.2726), Nei's genetic diversity (0.1566-0.1887), and Shannon's information index (0.2692-0.3117) indicated a plentiful genetic diversity and different among Paulownia fortunei populations. The genetic differentiation coefficient between populations was 0.2386, while the gene flow was 1.0954, and the low gene exchange promoted genetic differentiation. Analysis of variance indicated that genetic variation mainly occurred within populations (81.62% of total variation) rather than among populations (18.38%). The 16 populations were divided by unweighted pair-group method with arithmetic means (UPGMA) into 4 groups with obvious regionalism, in which the populations with close geographical locations (latitude) were clustered together.
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Abstract
Aims: Real‐time reverse transcription‐polymerase chain reaction (RT‐PCR) assay based on a TaqMan‐minor groove binder (MGB) probe was developed for the rapid detection of avian influenza virus subtype H5. Methods and Results: Conserved regions in the haemagglutinin genes of avian influenza viruses subtype H5 served as targets for the primers and TaqMan‐MGB probe design. Concentrations of primers and probe were optimized to improve the sensitivity and specificity of the reactions. A plasmid containing the haemagglutinin gene was constructed and in vitro transcribed for a quantitative assay of copy numbers of the target gene. The results revealed that the optimal concentration of primers and probe was 640 and 480 nmol l−1, respectively. The threshold of 100 copies of target molecules could be detected. The linear range for detection was determined as 102 to 108 molecules in reaction. Conclusions: It took less than 3 h to complete the detection from viral RNA extraction, with good sensitivity and repeatability. Significance and Impact of the Study: Real‐time RT‐PCR assay with MGB probe was an effective means for quick and quantitative laboratory detection and monitoring of H5 avian influenza viruses.
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Affiliation(s)
- Y Y Lu
- Institute of Virology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
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Mao IF, Lu YY, Sung FC, Wang SG, Chen ML. Study on 4-Nonylphenol Environmental Exposure in Taiwanese. Epidemiology 2006. [DOI: 10.1097/00001648-200611001-00886] [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] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sun M, Paciga JE, Feldman RI, Yuan Z, Coppola D, Lu YY, Shelley SA, Nicosia SV, Cheng JQ. Phosphatidylinositol-3-OH Kinase (PI3K)/AKT2, activated in breast cancer, regulates and is induced by estrogen receptor alpha (ERalpha) via interaction between ERalpha and PI3K. Cancer Res 2001; 61:5985-91. [PMID: 11507039] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
We have shown previously that the AKT2 pathway is essential for cell survival and important in malignant transformation. In this study, we demonstrate elevated kinase levels of AKT2 and phosphatidylinositol-3-OH kinase (PI3K) in 32 of 80 primary breast carcinomas. The majority of the cases with the activation are estrogen receptor alpha (ERalpha) positive, which prompted us to examine whether AKT2 regulates ERalpha activity. We found that constitutively activated AKT2 or AKT2 activated by epidermal growth factor or insulin-like growth factor-1 promotes the transcriptional activity of ERalpha. This effect occurred in the absence or presence of estrogen. Activated AKT2 phosphorylates ERalpha in vitro and in vivo, but it does not phosphorylate a mutant ERalpha in which ser-167 was replaced by Ala. The PI3K inhibitor, wortmannin, abolishes both the phosphorylation and transcriptional activity of ERalpha induced by AKT2. However, AKT2-induced ERalpha activity was not inhibited by tamoxifen but was completely abolished by ICI 164,384, implicating that AKT2-activated ERalpha contributes to tamoxifen resistance. Moreover, we found that ERalpha binds to the p85alpha regulatory subunit of PI3K in the absence or presence of estradiol in epithelial cells and subsequently activates PI3K/AKT2, suggesting ERalpha regulation of PI3K/AKT2 through a nontranscriptional and ligand-independent mechanism. These data indicate that regulation between the ERalpha and PI3K/AKT2 pathway (ERalpha-PI3K/AKT2-ERalpha) may play an important role in pathogenesis of human breast cancer and could contribute to ligand-independent breast cancer cell growth.
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Affiliation(s)
- M Sun
- Department of Pathology and Programs of Molecular Oncology and Drug Discovery, University of South Florida College of Medicine and H. Lee Moffitt Cancer Center, Tampa, Florida 33612, USA
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Chung UL, Kao CH, Wu SF, Gau ML, Kuo SC, Tseng HY, Lin MH, Lu YY. [The development of a competency-based clinical performance examination model in maternity nursing for BSN graduates]. Hu Li Yan Jiu 2001; 9:213-222. [PMID: 17953066] [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: 05/25/2023]
Abstract
The purpose of the study was to establish a competency-based clinical performance examination model in maternity nursing for baccalaureate students. Action research was the main research methodology used in the study. A committee, consisting of nursing faculty, students and experienced obstetric nurses, was established to develop the model. Based on intensive literature reviews and standards of nursing practice in Taiwan, the first draft of the model, including the content and process, was created by the committee. The draft then was revised twice after expert review and pilot testing. The revised version of the model was formally implemented into the curriculum to examine the competencies of forty-one BSN students at the end of the perinatal nursing course. Responses from students, clinical examiners, clinical staff and clients were all gathered and integrated to refine the model. The model has content, expert and discriminative validity. The reliability of the model was proven by the high consistency in administration and scoring of the model among clinical examiners.
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Balsara BR, Pei J, De Rienzo A, Simon D, Tosolini A, Lu YY, Shen FM, Fan X, Lin WY, Buetow KH, London WT, Testa JR. Human hepatocellular carcinoma is characterized by a highly consistent pattern of genomic imbalances, including frequent loss of 16q23.1-24.1. Genes Chromosomes Cancer 2001; 30:245-53. [PMID: 11170281 DOI: 10.1002/1098-2264(2000)9999:9999<::aid-gcc1083>3.0.co;2-m] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Comparative genomic hybridization (CGH) analysis was used to identify chromosomal imbalances in 52 human primary hepatocellular carcinomas (HCCs). The most prominent changes were gains of part or all of chromosome arms 8q (83% of cases) and 1q (73%) and loss of 16q (63%). Other commonly overrepresented sites were 5p, 7q, and Xq. Recurrent sites of DNA sequence amplification included 8q23--24 (five cases) and 11q13--14 (four cases). Other frequently underrepresented sites were 4q, 8p, 16p, and 17p. Taken collectively, these findings and data from other CGH studies of HCCs define a subset of chromosome segments that are consistently over- or underrepresented and highlight sites of putative oncogenes and tumor suppressor genes, respectively, involved in hepatocellular oncogenesis. Loss of heterozygosity analysis with a panel of polymorphic microsatellite markers distributed along 16q defined a minimal region of chromosomal loss at 16q23.1--24.1, suggesting that this region harbors a tumor suppressor gene whose loss/inactivation may contribute to the pathogenesis of many HCCs.
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Affiliation(s)
- B R Balsara
- Human Genetics Program, Division of Population Sciences, Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111, USA
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Lu YY, Shen P, Ding W. [Study on the relationship between microvascular density and prognosis in laryngeal cancer]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2000; 14:538-9. [PMID: 12563950] [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: 02/28/2023]
Abstract
OBJECTIVE To study the relationship between the microvascular density(MVD) and the prognosis in laryngeal cancer. METHOD Microvessel quantitation in 31 cases of laryngeal cancer was done with factor VIII-related antibody and SABC method. RESULT The quantitation of microvessels in laryngeal cancer were negative of histologic grade and type, but were significantly different (P < 0.05) between metastasis (10.23 +/- 0.78) and without metastasis(6.38 +/- 0.33) two years after operation. CONCLUSION The angiogenesis of laryngeal cancer is correlated with the lymph node metastasis and prognosis.
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Affiliation(s)
- Y Y Lu
- Department of Otorhinolaryngology, First Affiliated Hospital, College of Medical Sciences, Zhejiang University, Hangzhou 310003
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Ji YJ, Xiao B, Wang ZH, Cui MZ, Lu YY. The suppression effect of light rare earth elements on proliferation of two cancer cell lines. Biomed Environ Sci 2000; 13:287-292. [PMID: 11351862] [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: 05/23/2023]
Abstract
To study the suppression effect of light rare earth elements (RE) on proliferation of two cancer cell lines. Two cancer cell lines PAMC82 and K562 were used to examine their colony-forming ability in soft agar, microtubule structure, calmodulin levels and regulation of some gene expressions by Northern blot analysis with and without treatment by RE. The results showed that on soft agar culture the colony-forming ability of human gastric cancer cell line PAMC82 treated by RE chloride decreased and the PAMC82 cell microtubule abnormal structure became normal. The calmodulin (CaM) levels decreased in human leukemia cells (K562) treated with cerium chloride and neodymium chloride. The Northern blot analysis revealed marked up-regulation of p53, p16(MTS1), p21 (WAF1) gene expressions in PAMC82 cells treated with lanthanum chloride and cerium chloride, as compared to control PAMC82 cells. The light rare earth elements studied have certain suppression effects on proliferation of cancer cells. This effect might be related to the decrease of calmodulin and up-regulation of some gene expressions in cancer cells.
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Affiliation(s)
- Y J Ji
- Beijing Institute of Labor Hygiene and Occupational Diseases, Beijing 100020, China
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Zeng JX, Liu WW, Shi MJ, Yang XR, Mi LX, Lu YY, Zheng QA, Wang HY. [Effects of total flavones of metasequosia on left ventricular hypertrophy due to pressure overload in rats]. Zhongguo Zhong Yao Za Zhi 2000; 25:622-4. [PMID: 12516455] [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: 02/28/2023]
Abstract
OBJECTIVE To determine the preventive and regressive effects of total flavones of metasequosia (TFM) on left ventricular hypertrophy in rats. METHOD Left ventricular hypertrophy was inducedin by partial ligation of abdominal aorta. The rats were given ig TFM(4, 40, 400 mg.kg-1.d-1) for six weeks. RESULT TFM markedly reduced the HW/BW, LVW/BW, myofibril diameter and Ca2+ content in left ventricles but the systolic blood pressure (SBP) in rats wasn't obviously influenced. CONCLUSION TFM can prevent and reverse the left ventricular hypertrophy due to pressure overload in rats. The mechanism may be related to its calcium antagonistic properties.
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Affiliation(s)
- J X Zeng
- Dept of Pharmacology, Hubei Medical University, Wuhan 430071, Hubei, China
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Abstract
A fully automated system was developed for the depth of anesthesia estimation and control with the intravenous anesthetic, Propofol. The system determines the anesthesia depth by assessing the characteristics of the mid-latency auditory evoked potentials (MLAEP). The discrete time wavelet transformation was used for compacting the MLAEP which localizes the time and the frequency of the waveform. Feature reduction utilizing step discriminant analysis selected those wavelet coefficients which best distinguish the waveforms of those responders from the nonresponders. A total of four features chosen by such analysis coupled with the Propofol effect-site concentration were used to train a four-layer artificial neural network for classifying between the responders and the nonresponders. The Propofol is delivered by a mechanical syringe infusion pump controlled by Stanpump which also estimates the Propofol effect-site and plasma concentrations using a three-compartment pharmacokinetic model with the Tackley parameter set. In the animal experiments on dogs, the system achieved a 89.2% accuracy rate for classifying anesthesia depth. This result was further improved when running in real-time with a confidence level estimator which evaluates the reliability of each neural network output. The anesthesia level is adjusted by scheduled incrementation and a fuzzy-logic based controller which assesses the mean arterial pressure and/or the heart rate for decrementation as necessary. Various safety mechanisms are implemented to safeguard the patient from erratic controller actions caused by external disturbances. This system completed with a friendly interface has shown satisfactory performance in estimating and controlling the depth of anesthesia.
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Affiliation(s)
- J W Huang
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
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Li Z, Lu YY. [Correlation between alteration of the APC gene and human cancer]. Sheng Li Ke Xue Jin Zhan 1996; 27:365-7. [PMID: 9772395] [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: 02/09/2023]
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