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Ding X, Liang X, Chen MT, Hu L. Study on CFRP-Strengthened Welded Steel Plates with Inclined Welds Considering Welding Residual Stress. Materials (Basel) 2024; 17:1804. [PMID: 38673160 PMCID: PMC11051021 DOI: 10.3390/ma17081804] [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: 03/11/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024]
Abstract
Welded steel plates are widely used in various structural applications, and the presence of inclined welds is often encountered in practical scenarios. Carbon fiber reinforced polymer (CFRP) has been proven to be effective for strengthening steel structures. However, the behavior of CFRP-strengthened welded steel plates with inclined welds, particularly considering the influence of welding residual stress, is limited. This paper aims to investigate the tensile behavior of CFRP-strengthened welded Q355 steel plates with inclined welds considering welding residual stress (WRS). First, WRS data were obtained by the X-ray diffraction (XRD) method at different locations. The maximum tensile and compressive residual stresses are 0.39 and 0.14 times the yield strength of the steel, respectively. Then, finite element models were established to investigate the effects of weld angles, weld width, and height on the WRS distribution of welded steel plates. Finally, the tensile performance of CFRP-strengthened welded plates with WRS was studied by numerical simulation. The results showed that the weld angles have little effect on the distribution pattern of residual stress but significantly affect the peak tensile WRS. When the weld angle changes from 0° to 60°, the peak tensile WRS decreases significantly from 0.32 to 0.06 times the yield strength of steel; furthermore, the influence of weld width and height on WRS is relatively limited. Under tension loading, the maximum stress occurs near the weld. The ends of the weld enter the yielding state later than the middle part of the weld due to the distribution of the WRS. As the weld angle increases and the length of the weld increases, the stress in the weld zone decreases, while the stress in the base material zone correspondingly increases. In addition, CFRP strengthening can reduce the magnitude of stress. This study provides preliminary references for understanding the tensile behavior of CFRP-strengthened welded steel plates with inclined welds.
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Affiliation(s)
- Xinyu Ding
- State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (X.D.); (X.L.); (M.-T.C.)
- Laboratory for Digital Maintenance of Buildings and Infrastructure, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xu Liang
- State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (X.D.); (X.L.); (M.-T.C.)
- Laboratory for Digital Maintenance of Buildings and Infrastructure, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Man-Tai Chen
- State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (X.D.); (X.L.); (M.-T.C.)
- Laboratory for Digital Maintenance of Buildings and Infrastructure, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lili Hu
- State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (X.D.); (X.L.); (M.-T.C.)
- Laboratory for Digital Maintenance of Buildings and Infrastructure, Shanghai Jiao Tong University, Shanghai 200240, China
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Zhang W, Li M, Ye X, Jiang M, Wu X, Tang Z, Hu L, Zhang H, Li Y, Pan J. Disturbance of mitochondrial dynamics in myocardium of broilers with pulmonary hypertension syndrome. Br Poult Sci 2024; 65:154-164. [PMID: 38380624 DOI: 10.1080/00071668.2024.2308277] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 12/05/2023] [Indexed: 02/22/2024]
Abstract
1. The following study investigated the relationship between pulmonary hypertension syndrome (PHS) and mitochondrial dynamics in broiler cardiomyocytes.2. An animal model for PHS was established by injecting broiler chickens with CM-32 cellulose particles. Broiler myocardial cells were cultured under hypoxic conditions to establish an in vitro model. The ascites heart index, histomorphology, mitochondrial ultrastructure, and mitochondrial dynamic-related gene and protein expression were evaluated.3. The myocardial fibres from PHS broilers had wider spaces and were wavy and twisted and the number of mitochondria increased. Compared with the control group, the gene and protein expression levels were decreased for Opa1, Mfn1, and Mfn2 in the myocardium of PHS broilers. The gene and protein expression was significantly increased for Drp1 and Mff.4. This study showed that PHS in broilers may cause myocardial mitochondrial dysfunction, specifically by diminishing mitochondrial fusion and enhancing fission, causing disturbances in the mitochondrial dynamics of the heart.
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Affiliation(s)
- W Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - M Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - X Ye
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - M Jiang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - X Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - Z Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - L Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - H Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - Y Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - J Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
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Bilyaz S, Bhati A, Hamalian M, Maynor K, Soori T, Gattozzi A, Penney C, Weeks D, Xu Y, Hu L, Zhu J, Nelson J, Hebner R, Bahadur V. Modeling the impact of high thermal conductivity paper on the performance and life of power transformers. Heliyon 2024; 10:e27783. [PMID: 38524528 PMCID: PMC10958363 DOI: 10.1016/j.heliyon.2024.e27783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 03/01/2024] [Accepted: 03/06/2024] [Indexed: 03/26/2024] Open
Abstract
Degradation of insulation paper is a key contributor to the failure of power transformers. Insulation degradation accelerates at elevated temperatures, which highlights the potential for better thermal management to prolong life. While several studies have analyzed the benefits of high thermal conductivity oil for reducing temperatures inside a transformer, this study is an initial assessment of the benefits of high thermal conductivity paper on transformer life. Blending particulates with cellulosic fibers offers a pathway for high thermal conductivity paper (with good dielectric properties), which can reduce internal temperatures. Presently, life extensions that can be achieved by the use of such thermally conducting papers were estimated, with the thermal conductivity of the paper being the key parameter under study. The analytical-numerical thermal model used in this study was validated against experimental measurements in a distribution transformer, adding confidence to the utility of the model. This model was then used to provide estimates of hot-spot temperature reduction resulting from the use of papers with higher thermal conductivity than baseline. Transformer life was predicted conventionally by tracking the degree of polymerization of paper over time, based on an Arrhenius model. Results indicate that increasing the thermal conductivity of paper from 0.2 W/mK (baseline) to 1 W/mK reduces the hot spot temperature by 10 °C. While degradation significantly depends on the moisture and oxygen content, the model shows that such a temperature reduction can increase life for all conditions, by as much as a factor of three.
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Affiliation(s)
- S. Bilyaz
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - A. Bhati
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - M. Hamalian
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - K. Maynor
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - T. Soori
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - A. Gattozzi
- Center for Electromechanics, The University of Texas at Austin, Austin, TX, 78712, USA
| | - C. Penney
- Center for Electromechanics, The University of Texas at Austin, Austin, TX, 78712, USA
| | - D. Weeks
- Center for Electromechanics, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Y. Xu
- Center for Electromechanics, The University of Texas at Austin, Austin, TX, 78712, USA
| | - L. Hu
- Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - J.Y. Zhu
- USDA Forest Products Lab, Madison, WI, 53726, USA
| | - J.K. Nelson
- Department of Electrical, Computer and Systems Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - R. Hebner
- Center for Electromechanics, The University of Texas at Austin, Austin, TX, 78712, USA
| | - V. Bahadur
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
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Zhang BC, Laursen MF, Hu L, Hazrati H, Narita R, Jensen LS, Hansen AS, Huang J, Zhang Y, Ding X, Muyesier M, Nilsson E, Banasik A, Zeiler C, Mogensen TH, Etzerodt A, Agger R, Johannsen M, Kofod-Olsen E, Paludan SR, Jakobsen MR. Cholesterol-binding motifs in STING that control endoplasmic reticulum retention mediate anti-tumoral activity of cholesterol-lowering compounds. Nat Commun 2024; 15:2760. [PMID: 38553448 PMCID: PMC10980718 DOI: 10.1038/s41467-024-47046-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 03/18/2024] [Indexed: 04/02/2024] Open
Abstract
The cGAS-STING pathway plays a crucial role in anti-tumoral responses by activating inflammation and reprogramming the tumour microenvironment. Upon activation, STING traffics from the endoplasmic reticulum (ER) to Golgi, allowing signalling complex assembly and induction of interferon and inflammatory cytokines. Here we report that cGAMP stimulation leads to a transient decline in ER cholesterol levels, mediated by Sterol O-Acyltransferase 1-dependent cholesterol esterification. This facilitates ER membrane curvature and STING trafficking to Golgi. Notably, we identify two cholesterol-binding motifs in STING and confirm their contribution to ER-retention of STING. Consequently, depletion of intracellular cholesterol levels enhances STING pathway activation upon cGAMP stimulation. In a preclinical tumour model, intratumorally administered cholesterol depletion therapy potentiated STING-dependent anti-tumoral responses, which, in combination with anti-PD-1 antibodies, promoted tumour remission. Collectively, we demonstrate that ER cholesterol sets a threshold for STING signalling through cholesterol-binding motifs in STING and we propose that this could be exploited for cancer immunotherapy.
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Affiliation(s)
- Bao-Cun Zhang
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark.
| | - Marlene F Laursen
- Department of Health Science and Technology, Aalborg University, DK-9220, Aalborg, Denmark
| | - Lili Hu
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Hossein Hazrati
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
- Department of Forensic Medicine, Aarhus University, DK-8200, Aarhus N, Denmark
| | - Ryo Narita
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Lea S Jensen
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Aida S Hansen
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Jinrong Huang
- Department of Biology, University of Copenhagen, DK-2100, Copenhagen Ø, Denmark
| | - Yan Zhang
- Department of Engineering, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Xiangning Ding
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | | | - Emil Nilsson
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Agnieszka Banasik
- Department of Health Science and Technology, Aalborg University, DK-9220, Aalborg, Denmark
| | - Christina Zeiler
- Department of Health Science and Technology, Aalborg University, DK-9220, Aalborg, Denmark
| | - Trine H Mogensen
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
- Department of Infectious Diseases, Aarhus University Hospital, DK-8200, Aarhus N, Denmark
| | - Anders Etzerodt
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Ralf Agger
- Department of Health Science and Technology, Aalborg University, DK-9220, Aalborg, Denmark
| | - Mogens Johannsen
- Department of Forensic Medicine, Aarhus University, DK-8200, Aarhus N, Denmark
| | - Emil Kofod-Olsen
- Department of Health Science and Technology, Aalborg University, DK-9220, Aalborg, Denmark
| | - Søren R Paludan
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark.
| | - Martin R Jakobsen
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark.
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Zeng Y, Gou X, Yin P, Sui X, Chen X, Hu L. The influence of respiratory movement on preoperative CT-guided localization of lung nodules. Clin Radiol 2024:S0009-9260(24)00150-8. [PMID: 38589276 DOI: 10.1016/j.crad.2024.03.011] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/31/2024] [Accepted: 03/17/2024] [Indexed: 04/10/2024]
Abstract
AIM To evaluate the motion amplitude of lung nodules in different locations during preoperative computed tomography (CT)-guided localization, and the influence of respiratory movement on CT-guided percutaneous lung puncture. MATERIALS AND METHODS A consecutive cohort of 398 patients (123 men and 275 women with a mean age of 53.9 ± 10.7 years) who underwent preoperative CT-guided lung nodule localization from May 2021 to Apr 2022 were included in this retrospective study. The respiratory movement-related nodule amplitude in the cranial-caudal direction during the CT scan, characteristics of patients, lesions, and procedures were statistically analyzed. Univariate and multivariate logistic regression analyses were used to evaluate the influence of these factors on CT-guided localization. RESULTS The nodule motion distribution showed a statistically significant correlation within the upper/middle (lingular) and lower lobes (p<0.001). Motion amplitude was an independent risk factor for CT scan times (p=0.011) and procedure duration (p=0.016), but not for the technical failure rates or the incidence of complications. Puncture depth was an independent risk factor for the CT scan times, procedure duration, technical failure rates, and complications (p<0.01). Female, prone, and supine (as opposed to lateral) positions were significant protective factors for pneumothorax, while the supine position was an independent risk factor for parenchymal hemorrhage (p=0.025). CONCLUSION Respiratory-induced motion amplitude of nodules was greater in the lower lobes, resulting in more CT scan times/radiation dose and longer localization duration, but showed no statistically significant influence on the technical success rates or the incidence of complications during preoperative CT-guided localization.
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Affiliation(s)
- Y Zeng
- Department of Radiology, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, PR China
| | - X Gou
- Department of Radiology, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, PR China
| | - P Yin
- Department of Radiology, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, PR China
| | - X Sui
- Department of Thoracic Surgery, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, PR China
| | - X Chen
- Department of Thoracic Surgery, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, PR China
| | - L Hu
- Department of Thoracic Surgery, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, PR China.
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Hu H, Hu L, Deng Z, Jiang Q. A prognostic nomogram for recurrence survival in post-surgical patients with varicose veins of the lower extremities. Sci Rep 2024; 14:5486. [PMID: 38448552 PMCID: PMC10918178 DOI: 10.1038/s41598-024-55812-0] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 02/28/2024] [Indexed: 03/08/2024] Open
Abstract
Varicose veins of the lower extremities (VVLEs) are prevalent globally. This study aims to identify prognostic factors and develop a prediction model for recurrence survival (RS) in VVLEs patients after surgery. A retrospective analysis of VVLEs patients from the Third Hospital of Nanchang was conducted between April 2017 and March 2022. A LASSO (Least Absolute Shrinkage and Selection Operator) regression model pinpointed significant recurrence predictors, culminating in a prognostic nomogram. The model's performance was evaluated by C-index, receiver operating characteristic (ROC) curves, calibration plots, and decision curve analysis (DCA). The LASSO regression identified seven predictors for the nomogram predicting 1-, 2-, and 5-year RS. These predictors were age, body mass index (BMI), hypertension, diabetes, the Clinical Etiological Anatomical Pathophysiological (CEAP) grade, iliac vein compression syndrome (IVCS), and postoperative compression stocking duration (PCSD). The nomogram's C-index was 0.716, with AUCs (Area Under the Curve scores) of 0.705, 0.725, and 0.758 for 1-, 2-, and 5-year RS, respectively. Calibration and decision curve analyses validated the model's predictive accuracy and clinical utility. Kaplan-Meier analysis distinguished between low and high-risk groups with significant prognostic differences (P < 0.05). This study has successfully developed and validated a nomogram for predicting RS in patients with VVLEs after surgery, enhancing personalized care and informing clinical decision-making.
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Affiliation(s)
- Hai Hu
- Department of General Surgery, The Third Hospital of Nanchang, No. 2, Xiangshan South Road, Xihu District, Nanchang, Jiangxi, China
| | - Lili Hu
- Department of pediatrics, The Third Hospital of Nanchang, Nanchang, China
| | - Ziqing Deng
- Department of General Surgery, The Third Hospital of Nanchang, No. 2, Xiangshan South Road, Xihu District, Nanchang, Jiangxi, China
| | - Qihua Jiang
- Department of General Surgery, The Third Hospital of Nanchang, No. 2, Xiangshan South Road, Xihu District, Nanchang, Jiangxi, China.
- Department of Breast Surgery, The Third Hospital of Nanchang, Nanchang, China.
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Chi W, Hu L, Li Z, Lin B, Zhuo K, Liao J. Transcriptome Analysis of Meloidogyne javanica and the Role of a C-Type Lectin in Parasitism. Plants (Basel) 2024; 13:730. [PMID: 38475576 DOI: 10.3390/plants13050730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/28/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024]
Abstract
Meloidogyne javanica is one of the most widespread and economically important sedentary endoparasites. In this study, a comparative transcriptome analysis of M. javanica between pre-parasitic second-stage juveniles (Pre-J2) and parasitic juveniles (Par-J3/J4) was conducted. A total of 48,698 unigenes were obtained, of which 18,826 genes showed significant differences in expression (p < 0.05). In the differentially expressed genes (DEGs) from transcriptome data at Par-J3/J4 and Pre-J2, a large number of unigenes were annotated to the C-type lectin (CTL, Mg01965), the cathepsin L-like protease (Mi-cpl-1), the venom allergen-like protein (Mi-mps-1), Map-1 and the cellulase (endo-β-1,4-glucanase). Among seven types of lectins found in the DEGs, there were 10 CTLs. The regulatory roles of Mj-CTL-1, Mj-CTL-2 and Mj-CTL-3 in plant immune responses involved in the parasitism of M. javanica were investigated. The results revealed that Mj-CTL-2 could suppress programmed cell death (PCD) triggered by Gpa2/RBP-1 and inhibit the flg22-stimulated ROS burst. In situ hybridization and developmental expression analyses showed that Mj-CTL-2 was specifically expressed in the subventral gland of M. javanica, and its expression was up-regulated at Pre-J2 of the nematode. In addition, in planta silencing of Mj-CTL-2 substantially increased the plant resistance to M. javanica. Moreover, yeast co-transformation and bimolecular fluorescence complementation assay showed that Mj-CTL-2 specifically interacted with the Solanum lycopersicum catalase, SlCAT2. It was demonstrated that M. javanica could suppress the innate immunity of plants through the peroxide system, thereby promoting parasitism.
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Affiliation(s)
- Wenwei Chi
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - Lili Hu
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, China
| | - Zhiwen Li
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - Borong Lin
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - Kan Zhuo
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - Jinling Liao
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
- Guangdong Eco-Engineering Polytechnic, Guangzhou 510520, China
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Rong F, Shi R, Hu L, Wang D, Lv X, Zhao Y. Impact of risk perception and disease cognition on the willingness to participate in screening for lung cancer in a high-risk population. Eur J Cancer Prev 2024; 33:141-151. [PMID: 37751366 DOI: 10.1097/cej.0000000000000843] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
OBJECTIVE Risk perception and disease cognition may influence the efficiency of lung cancer screening by affecting the participation rate. There is still some uncertainty regarding the association between risk perception and disease cognition and how they affect participation in lung cancer screening. Therefore, we explored the influence of risk perception and disease cognition on the willingness to participate in screening among people at high risk of lung cancer. METHODS Subjects with high-risk factors for lung cancer were recruited in Lu'an City, Anhui Province, China. Questionnaires were used to determine their demographic characteristics, risk perception, disease cognition, and willingness to engage in screening. RESULTS Of the 1955 subjects with high risk factors for lung cancer, 1136 (58.12%) were willing to participate in lung cancer screening. Univariable and multivariable analyses showed that disease cognition ( adj OR = 2.012, 95% CI: 1.528-2.649, P = 0.000), cognitive risk ( adj OR = 7.661, 95% CI: 6.049-9.704, P = 0.000), and affective risk ( adj OR = 5.964, 95% CI: 4.552-7.815, P = 0.000) were significant factors in promoting screening participation. For those with moderate risk perception, improving disease cognition was a key approach to increase screening participation. CONCLUSION This study elucidated the relationship between various factors and lung cancer screening participation and proposed a feasible route for the screening implementation, providing a theoretical basis to further improve the participation rate and efficiency of lung cancer screening.
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Affiliation(s)
- Feng Rong
- Cancer center, Lu'an Hospital of Anhui Medical University, Lu'an, Anhui, China
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Luan S, Chen S, Zhu X, Wu D, Yu F, Hu J, Yu C, Hu L. In-situ background-free Raman probe using double-cladding anti-resonant hollow-core fibers. Biomed Opt Express 2024; 15:1709-1718. [PMID: 38495691 PMCID: PMC10942705 DOI: 10.1364/boe.517625] [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] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/03/2024] [Accepted: 02/03/2024] [Indexed: 03/19/2024]
Abstract
This study presents the development of an in-situ background-free Raman fiber probe, employing two customized double-cladding anti-resonant hollow-core fibers (AR-HCFs). The Raman background noise measured in the AR-HCF probe is lower than that of a conventional multi-mode silica fiber by two orders of magnitude. A plug-in device for fiber coupling optics was designed that was compatible with a commercially available confocal Raman microscope, enabling in-situ Raman detection. The numerical aperture (NA) of both AR-HCF claddings exceeds 0.2 substantially enhancing the collection efficiency of Raman signals at the distal end of the fiber probe. The performance of our Raman fiber probe is demonstrated by characterizing samples of acrylonitrile-butadiene-styrene (ABS) plastics, alumina ceramics, and ethylene glycol solution.
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Affiliation(s)
- Shufan Luan
- Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Si Chen
- Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Xinyue Zhu
- Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Dakun Wu
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Fei Yu
- Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Junjiang Hu
- Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Chunlei Yu
- Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Lili Hu
- Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
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10
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Sun Y, Wang X, Yang Q, Wang Y, Wang F, Hu L, Yu C, Liao M, Chen S. Er-doped silicate fiber amplifiers in the L-band with flat gain. Opt Lett 2024; 49:989-992. [PMID: 38359243 DOI: 10.1364/ol.511974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/17/2024] [Indexed: 02/17/2024]
Abstract
We demonstrated an efficient way to enhance and flatten the emission cross sections of Er3+ ions at the L-band in the silicate fiber amplifier by increasing Mg2+ (up to 22.5 mol%) with high field strength. High values of Er3+ concentration, lifetime, and L-band emission cross section were achieved in our silicate fibers. Particularly, the flatness at the L-band was achieved to be 0.8 dB, and a high gain coefficient at 1625 nm (4.7 dB/m) was demonstrated by pumping meter-scale Er-silicate fibers. The as-prepared Er-silicate fibers are attractive for the L-band fiber amplifier.
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Wei Z, Wang Y, Hu L, Wang Y, Li C, Sun L. Incidence, prevalence, and mortality of schizophrenia from 2016 to 2020 in Shandong, China. Psychiatry Res 2024; 331:115612. [PMID: 38039652 DOI: 10.1016/j.psychres.2023.115612] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 12/03/2023]
Abstract
The epidemiology of schizophrenia has been reported in many countries. However, due to the limitations of those studies, the findings cannot be generalized to other parts of the world, especially in China. In this study, the incidence, prevalence, and mortality of schizophrenia in Shandong, China were calculated using data from the National Severe Mental Disorder Registration System collected between 2016 and 2020 and census data from 2010 to 2020. The overall incidence decreased from 9.61 per 100,000 in 2016 to 4.40 per 100,000 in 2020, the aggregate prevalence was approximately 3.20 per 1000, and the overall mortality ranged from 6.17 per 100,000 to 7.71 per 100,000. The evidence from this study indicated that the incidence, prevalence, and mortality of schizophrenia were higher in rural areas than in urban areas. Females had higher incidence, prevalence, and mortality than males. This study provided epidemiological information on schizophrenia and opened avenues for future research.
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Affiliation(s)
- Zhen Wei
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; National Health Commission of China (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan 250012, China; Institute of Health and Elderly Care, Shandong University, Jinan 250012, China
| | - Yanhu Wang
- Department of Social Mental Health, Shandong Mental Health Center, Jinan 250014, China
| | - Lili Hu
- Department of Social Mental Health, Shandong Mental Health Center, Jinan 250014, China
| | - Yifan Wang
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; National Health Commission of China (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan 250012, China; Institute of Health and Elderly Care, Shandong University, Jinan 250012, China
| | - Caifeng Li
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; National Health Commission of China (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan 250012, China; Institute of Health and Elderly Care, Shandong University, Jinan 250012, China
| | - Long Sun
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; National Health Commission of China (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan 250012, China; Institute of Health and Elderly Care, Shandong University, Jinan 250012, China.
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Li F, Mei F, Yin S, Du Y, Hu L, Hong W, Li J. Improving the efficacy and safety of concurrent chemoradiotherapy by neoadjuvant chemotherapy: a randomized controlled study of locally advanced cervical cancer with a large tumor. J Gynecol Oncol 2024; 35:e10. [PMID: 37857565 PMCID: PMC10792203 DOI: 10.3802/jgo.2024.35.e10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/05/2023] [Accepted: 09/04/2023] [Indexed: 10/21/2023] Open
Abstract
OBJECTIVE To compare the efficacy and safety of neoadjuvant chemotherapy combined with concurrent chemoradiotherapy (NACT+CCRT) vs. concurrent chemoradiotherapy (CCRT) in locally advanced cervical cancer (LACC) patients with large tumor masses. METHODS LACC patients with localized tumor diameter >4 cm, were randomly allocated in an unblinded 1:1 ratio to NACT+CCRT or CCRT groups. Patients in the NACT+CCRT group were given paclitaxel combined with cisplatin (TP) NACT every 3 weeks for 2 cycles, followed by CCRT, with the chemotherapy regimen the same as for NACT. CCRT group were given CCRT with the same as for NACT. RESULTS From March 1, 2019, to June 30, 2021, 146 patients were included in the final analysis. Sixty-eight (93.2%) patients in the NACT+CCRT group and 66 (90.4%) patients in the CCRT group completed the expected treatment course. The complete response (CR) rate in the NACT+CCRT group was significantly higher than in the CCRT group (87.7% vs. 67.6%, χ²=54.540, p=0.000). In the NACT+CCRT group, the 1- and 2-year overall survival (OS) rates were significantly higher than those in the CCRT group (96% vs. 89% and 89% vs. 79%, χ²=5.737, p=0.017). Additionally, the rate of recurrences and distant metastases was significantly lower in the NACT+CCRT group than in the CCRT group (4.11% vs. 7.35%, χ²=4.059, p=0.021). Most treatment-related adverse events in both groups were grade 3. CONCLUSION Compared to CCRT, NACT+CCRT might improve the treatment completion rate, increase CR rate and 1- and 2-year OS rates, and reduce distant metastases rate for LACC patients with large tumor masses.
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Affiliation(s)
- Fenghu Li
- Department of Oncology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
- Department of Gynecological Oncology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China
| | - Fan Mei
- Department of Gynecological Oncology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China
| | - Shuishui Yin
- Department of Gynecological Oncology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China
| | - Yanjun Du
- Department of Oncology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
- Department of Gynecological Oncology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China
| | - Lili Hu
- Department of Oncology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
- Department of Gynecological Oncology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China
| | - Wei Hong
- Department of Oncology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
- Department of Gynecological Oncology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China
| | - Jiehui Li
- Department of Oncology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
- Department of Gynecological Oncology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China.
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Sun J, Du J, Liu X, An J, Li Y, Yu Y, Li M, Zheng L, Wu C, Hu L. Preparation of chitosan-coated hollow tin dioxide nanoparticles and their application in improving the oral bioavailability of febuxostat. Int J Pharm X 2023; 6:100199. [PMID: 37521247 PMCID: PMC10384222 DOI: 10.1016/j.ijpx.2023.100199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/07/2023] [Accepted: 07/08/2023] [Indexed: 08/01/2023] Open
Abstract
The aim of this study was to design a chitosan-coated hollow tin dioxide nanosphere (CS-HSn) for loading febuxostat (FEB) using an adsorption method to obtain a sustained-release system (CS-HSn-FEB) to improve the oral bioavailability of FEB. The morphological characteristics of hollow tin dioxide nanospheres (HSn) and CS-HSn were analyzed by transmission electron microscopy (TEM) and dynamic light scattering (DLS). The hemolysis test and CCK-8 test were used to assess the biosafety of HSn and CS-HSn. Powder X-ray diffraction (PXRD) and differential scanning thermal analysis (DSC) were performed on CS-HSn-FEB to analyze the drug presence status. The dissolution behavior and changes in plasma drug concentration of CS-HSn-FEB were evaluated in vitro and in vivo. Sections of intestinal tissues from SD rats were obtained to observe whether chitosan could increase the distribution of nanoparticles in the intestinal tissues. The results showed that FEB was present in CS-HSn in an amorphous state. Moreover, CS-HSn, with good biosafety, significantly improved the water solubility and oral absorption of FEB, indicating that CS-HSn has great potential to improve the intestinal absorption and oral bioavailability of insoluble drugs.
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Affiliation(s)
- Junpeng Sun
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Jiaqun Du
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Xiaobang Liu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Jinyu An
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Yingqiao Li
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Yanan Yu
- Medical College of Jinzhou Medical University, Jinzhou Medical University, 121010, China
| | - Minghui Li
- Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Li Zheng
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Chao Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Lili Hu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
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Ma Y, Wang YH, Huang S, Zou ZG, Hu L, Guo LC. [Activation of HIF-1α/ACLY signaling axis promotes progression of clear cell renal cell carcinoma with VHL inactivation mutation]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1230-1236. [PMID: 38058039 DOI: 10.3760/cma.j.cn112151-20230915-00175] [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: 12/08/2023]
Abstract
Objective: To explore the potential pathogenesis of clear cell renal cell carcinoma (ccRCC) based on the HIF-1α/ACLY signaling pathway, as well as to provide new ideas for the treatment of ccRCC. Methods: Seventy-eight ccRCC cases diagnosed at the First Affiliated Hospital of Soochow University, Suzhou, China were collected. The VHL mutation was examined using exon sequencing. The expression of HIF-1α/ACLY in VHL-mutated ccRCC was evaluated using immunohistochemical staining and further validated in VHL-mutated ccRCC cell lines (786-O, A498, UM-RC-2, SNU-333, and Caki-2) using Western blot. The mRNA and protein levels of ACLY were detected using real-time quantitative PCR and Western blot after overexpression or interference with HIF-1α in ccRCC cell lines. HeLa cells were treated with CoCl2 and hypoxia (1%O2) to activate HIF-1α and then subject to the detection of the ACLY mRNA and protein levels. The potential molecular mechanism of HIF-1α-induced ACLY activation was explored through JASPAR database combined with chromatin immunoprecipitation assay (ChIP) and luciferase reporter gene assay. The effect of HIF-1α/ACLY regulation axis on lipid accumulation was detected using BODIPY staining and other cell biological techniques. The expression of ACLY was compared between patients with ccRCC and those with benign lesions, and the feasibility of ACLY as a prognostic indicator for ccRCC was explored through survival analysis. Results: Exon sequencing revealed that 55 (70.5%) of the 78 ccRCC patients harbored a VHL inactivation mutation, and HIF-1α expression was associated with ACLY protein levels. The protein levels of ACLY and HIF-1α in ccRCC cell lines carrying VHL mutation were also correlated to various degrees. Overexpression of HIF-1α in A498 cells increased the mRNA and protein levels of ACLY, and knockdown of HIF-1α in Caki-2 cells inhibited the mRNA and protein levels of ACLY (P<0.001 for all). CoCl2 and hypoxia treatment significantly increased the mRNA and protein levels of ACLY by activating HIF-1α (P<0.001 for all). The quantification of transcriptional activity of luciferase reporter gene and ChIP-qPCR results suggested that HIF-1α could directly bind to ACLY promoter region to transcriptionally activate ACLY expression and increase ACLY protein level (P<0.001 for all). The results of BODIPY staining suggested that the content of free fatty acids in cell lines was associated with the levels of HIF-1α and ACLY. The depletion of HIF-1α could effectively reduce the accumulation of lipid in cells, while the overexpression of ACLY could reverse this process. At the same time, cell function experiments showed that the proliferation rate of ccRCC cells with HIF-1α knockdown was significantly decreased, and overexpression of ACLY could restore proliferation of these tumor cells (P<0.001). Survival analysis further showed that compared with the ccRCC patients with low ACLY expression, the ccRCC patients with high ACLY expression had a poorer prognosis and a shorter median survival (P<0.001). Conclusions: VHL mutation-mediated HIF-1α overexpression in ccRCC promotes lipid synthesis and tumor progression by activating ACLY. Targeting the HIF-1α/ACLY signaling axis may provide a theoretical basis for the clinical diagnosis and treatment of ccRCC.
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Affiliation(s)
- Y Ma
- Department of Pathology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Y H Wang
- Department of Pathology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - S Huang
- Department of Pathology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Z G Zou
- Department of Pathology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - L Hu
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou 215006, China
| | - L C Guo
- Department of Pathology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
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Hu L, Fu M, Wushouer H, Ling K, Shi L, Guan X. Association between β-lactam allergy documentation and outpatient antibiotic prescribing in primary healthcare facilities in China. J Hosp Infect 2023; 142:140-141. [PMID: 37660890 DOI: 10.1016/j.jhin.2023.08.018] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 08/15/2023] [Accepted: 08/21/2023] [Indexed: 09/05/2023]
Affiliation(s)
- L Hu
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - M Fu
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China; International Research Center for Medicinal Administration, Peking University, Beijing, China
| | - H Wushouer
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China; International Research Center for Medicinal Administration, Peking University, Beijing, China
| | - K Ling
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - L Shi
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China; International Research Center for Medicinal Administration, Peking University, Beijing, China
| | - X Guan
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China; International Research Center for Medicinal Administration, Peking University, Beijing, China.
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Cai L, Xia X, Gu Y, Hu L, Li C, Ma X, Yin J. Opposite effects of low-carbohydrate high-fat diet on metabolism in humans and mice. Lipids Health Dis 2023; 22:191. [PMID: 37950240 PMCID: PMC10636972 DOI: 10.1186/s12944-023-01956-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Low-carbohydrate diet (LCD) is effective for weight loss and glycaemic control in humans. Here, the study aimed to explore the effects of LCD/high-fat diet (HFD) in both humans and mice. METHODS Twenty-two overweight or obese participants received LCD for 3 weeks. Based on carbohydrate intake > 10% or ≤ 10% of calories, the participants were divided into moderate LCD (MLCD) and very LCD (VLCD) groups. The participants completed a 10-question food preference survey. Meanwhile, C57BL/6J mice were assigned to five groups: chow diet (CD, 10% fat), HFD with 60%, 70%, and 75% fat from cocoa butter (HFD-C), and HFD with 60% fat from lard (HFD-L) and fed for 24 weeks. Eight mice were acclimatised for the food-choice test. RESULTS LCD decreased the total energy intake in humans. The VLCD group showed greater weight loss and better glycaemic control than the MLCD group. A food preference survey showed that 65% of participants tended to choose high-carbohydrate foods. In mice, HFD resulted in energy overconsumption, obesity, and metabolic disorders. When CD and HFD-L were administered simultaneously, mice rarely consumed CD. In the HFD-C groups, the energy intake and body weight increased with increasing dietary fat content. Compared with the HFD-C group, the HFD-L group consumed more energy and had poorer metabolism. CONCLUSIONS Lower carbohydrate intake contributed to lower energy intake and improved metabolism in humans. In mice, diets with a higher proportion of fat become more attractive and obesogenic by fixing the fat sources. Since the mice preferred lard to cocoa butter, lard induced excess energy intake and poorer metabolism. Different food preferences may be the underlying mechanism behind the opposite effects of the LCD/HFD in humans and mice. TRIAL REGISTRATION The clinical trial was registered with the Chinese Clinical Trial Registry ( www.chictr.org.cn ). The registration number is ChiCTR1800016786. All participants provided written informed consent prior to enrolment.
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Affiliation(s)
- Lingli Cai
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute, Shanghai, 200233, China
| | - Xinyi Xia
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute, Shanghai, 200233, China
| | - Yunjie Gu
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute, Shanghai, 200233, China
| | - Lili Hu
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute, Shanghai, 200233, China
| | - Cheng Li
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute, Shanghai, 200233, China
| | - Xiaojing Ma
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute, Shanghai, 200233, China.
| | - Jun Yin
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute, Shanghai, 200233, China.
- Department of Endocrinology and Metabolism, Shanghai Eighth People's Hospital, Shanghai, 200235, China.
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Li CY, Chen S, Qian WL, Yang L, Zheng Q, Chen AJ, Chen J, Huang K, Fang S, Wang P, Hu L, Liu XR, Zhao XQ, Tan N, Cai T. [Clinical observation on the efficacy and safety of dupilumab in the treatment of moderate to severe atopic dermatitis]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1590-1595. [PMID: 37859375 DOI: 10.3760/cma.j.cn112150-20221103-01063] [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: 10/21/2023]
Abstract
To investigate the clinical efficacy and safety of dupilumab in the treatment of moderate to severe atopic dermatitis (AD) in China. A small sample self-controlled study before and after treatment was conducted to retrospective analysis patients with moderate to severe AD treated with dupilumab in the department of dermatology of the First Affiliated Hospital of Chongqing Medical University from July 2020 to March 2022. Dupilumab 600 mg was injected subcutaneously at week 0, and then 300 mg was injected subcutaneously every 2 weeks. The condition was evaluated by SCORAD(severity scoring of atopic dermatitis), NRS(numerical rating scale), DLQI(dermatology life quality index) and POEM(patient-oriented eczema measure). The improvement of SCORAD, NRS, DLQI and POEM was analyzed by paired t test and non-parametric paired Wilcoxon. The results showed that a total of 67 patients with moderate to severe AD received dupilumab treatment, of which 41 patients (the course of treatment was more than 6 weeks) had reduced the severity of skin lesions, improved quality of life and reduced pruritus. A total of 23 patients completed 16 weeks of treatment. At 4, 8, 12 and 16 weeks, SCORAD, NRS, DLQI and POEM decreased compared with the baseline, and the differences were statistically significant. SCORAD (50.13±15.19) at baseline, SCORAD (36.08±11.96)(t=6.049,P<0.001) at week 4,SCORAD (28.04±11.10)(t=10.471,P<0.001) at week 8, SCORAD (22.93±9.72)(t=12.428,P<0.001) at week 12, SCORAD (16.84±7.82)(t=14.609,P<0.001) at week 16, NRS 7(6,8) at baseline, NRS 4(3,5)(Z=-3.861,P<0.001) at week 4, NRS 2(1,4)(Z=-4.088,P<0.001) at week 8, NRS 1(0,2)(Z=-4.206,P<0.001) at week 12, NRS 2(0,2)(Z=-4.222,P<0.001) at week 16, DLQI (13.83±5.71) at baseline, DLQI (8.00±4.02)(t=6.325,P<0.001) at week 4, DLQI (5.61±3.50)(t=8.060,P<0.001) at week 8, DLQI (3.96±1.99)(t=8.717,P<0.001) at week 12, DLQI (2.70±1.89)(t=10.355,P<0.001) at week 16, POEM (18.04±6.41) at baseline, POEM (9.70±4.70)(t=7.031,P<0.001) at week 4, POEM (7.74±3.48)(t=8.806,P<0.001) at week 8, POEM (6.35±3.33)(t=10.474,P<0.001) at week 12, POEM (4.26±2.51)(t=11.996,P<0.001) at week 16. In the 16th week, 100%(23 patients), 91.3%(21 patients), 34.8%(8 patients) and 8.7%(2 patients) of 23 patients reached SCORAD30, SCORAD50, SCORAD70, and SCORAD90 statuses, respectively. There were 82.6%(19 patients), 95.7%(22 patients) and 95.7%(22 patients) of 23 patients with NRS, DLQI and POEM improved by≥4 points compared with baseline. Twelve patients with AD who continued to receive dupilumab after 16 weeks showed further improvement in skin lesions. The adverse events were conjunctivitis and injection site reaction. In conclusion, dupilumab is an effective and safe treatment for moderate and severe AD. However, the longer-term efficacy and safety require further studies involving larger sample sizes and a longer follow-up time.
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Affiliation(s)
- C Y Li
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - S Chen
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - W L Qian
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - L Yang
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - Q Zheng
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - A J Chen
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - J Chen
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - K Huang
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - S Fang
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - P Wang
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - L Hu
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - X R Liu
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - X Q Zhao
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - N Tan
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - T Cai
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
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Hu L, Fenghu L, Li J, Du Y, Mei F, Tian X, Qin Y, Lu B, Shan L. Efficacy and Safety of Local Radiotherapy Combined with Chemotherapy ± Bevacizumab in the Treatment of Patients with Advanced and Recurrent Metastatic Cervical Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e512-e513. [PMID: 37785603 DOI: 10.1016/j.ijrobp.2023.06.1771] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To observe the efficacy and safety of local radiotherapy combined with chemotherapy ± bevacizumab in the treatment of patients with advanced or recurrent metastatic cervical cancer. MATERIALS/METHODS A total of 53 patients with advanced and recurrent metastatic cervical cancer who had received local radiotherapy combined with chemotherapy ± bevacizumab in Affiliated Cancer Hospital of Guizhou Medical University from July 2018 to October 2021 were collected. The recurrence types included 21 patients of pelvic recurrence, 7 patients of distant metastasis, 14 patients of complex pelvic recurrence and distant metastasis, and 11 patients of advanced stage (initial diagnosis stage IVB). The primary endpoints were objective response rate (ORR) and disease control rate (DCR). The secondary endpoints were progression-free survival (PFS), overall survival (OS) and incidence of adverse reactions. RESULTS (1) Complete response (CR) was achieved in 4 patients (7.5%), partial response (PR) in 34 patients (64.2%), stable disease (SD) in 12 patients (22.6%), and disease progression (PD) in 3 patients (5.7%), ORR was 71.7%, DCR was 94.3%. (2) The follow-up time was 5.3 to 45.7 months, the median OS was 29.3 months, the median PFS was 15.7 months, the one-year and two-year OS were 83.0% and 59.2%, and the 1-year and two-year PFS were 62.2% and 34.4%. (3) Recurrence type, tumor size at the time of recurrence, and efficacy after radiotherapy were significant factors for PFS and OS rates in multivariate analysis. (4) The main adverse reactions were myelosuppression, gastrointestinal reaction and urinary reaction. Grade IV leukopenia occurred at 13.2%, grade IV neutropenia at 11.3%, grade IV thrombocytopenia at 15.1%, and grade IV anemia at 5.7%, all of which were tolerable. The gastrointestinal and urinary reactions were mainly grade I-II, and the incidence of vesical or rectovaginal fistulas was about 7.5% (2 patients had rectovaginal fistulas and 2 patients had vesto-vaginal fistulas). CONCLUSION Local radiotherapy combined with chemotherapy ± bevacizumab can improve the efficacy and survival of patients with advanced and recurrent metastatic cervical cancer. Adverse reactions are tolerable and may provide survival benefits in these patients.
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Affiliation(s)
- L Hu
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - L Fenghu
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - J Li
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Y Du
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - F Mei
- Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - X Tian
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Y Qin
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - B Lu
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - L Shan
- Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou, China
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Li G, Li Q, Shen Z, Lin X, Li X, Wang J, Zhao B, Feng Y, Feng L, Guo W, Hu L, Wang J, Zhang C, Fan Z, Wang S, Wu X. Fibulin-1 Regulates Initiation of Successional Dental Lamina. J Dent Res 2023; 102:1220-1230. [PMID: 37448354 DOI: 10.1177/00220345231182052] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2023] Open
Abstract
In humans, teeth are replaced only once, and the successional dental lamina (SDL) of the permanent tooth is maintained in a quiescent state until adolescence. Recently, we showed that biomechanical stress generated by the rapid growth of the deciduous tooth inhibits SDL development via integrin β1-RUNX2 signaling at embryonic day 60 (E60) in miniature pigs. However, the mechanism by which RUNX2 regulates SDL initiation within the SDL stem cell niche remains unclear. In the current study, we transcriptionally profiled single cells from SDL and surrounding mesenchyme at E60 and identified the landscape of cellular heterogeneity. We then identified a specific fibroblast subtype in the dental follicle mesenchyme between the deciduous tooth and the SDL of the permanent tooth (DFDP), which constitutes the inner part of the niche (deciduous tooth side). Compared with traditional dental follicle cells, the specific expression profile of DFDP was identified and found to be related to biomechanical stress. Subsequently, we found that RUNX2 could bind to the enhancer regions of Fbln1 (gene of fibulin-1), one of the marker genes for DFDP. Through gain- and loss-of-function experiments, we proved that the biomechanical stress-mediated RUNX2-fibulin-1 axis inhibits the initiation of SDL by maintaining SDL niche homeostasis.
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Affiliation(s)
- G Li
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
- Department of Dental Implantology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Q Li
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Z Shen
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - X Lin
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - X Li
- Academician Workstation for Oral-Maxillofacial Regenerative Medicine, Central South University, Changsha, China
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - J Wang
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - B Zhao
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Y Feng
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - L Feng
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - W Guo
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - L Hu
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - J Wang
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - C Zhang
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Z Fan
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - S Wang
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Molecular Laboratory of Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
- Academician Workstation for Oral-Maxillofacial Regenerative Medicine, Central South University, Changsha, China
- Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medical Sciences, Beijing, China
| | - X Wu
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Academician Workstation for Oral-Maxillofacial Regenerative Medicine, Central South University, Changsha, China
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital, Central South University, Changsha, China
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Zhao L, Yang Y, Liu P, Yu F, Hu L, Kang M, Lin H, Ding X. Introducing an Experimental Approach to Predict Spot Scanning Time Parameters for a Superconducting Cyclotron Proton Therapy Machine. Int J Radiat Oncol Biol Phys 2023; 117:e748. [PMID: 37786166 DOI: 10.1016/j.ijrobp.2023.06.2290] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Proton pencil beam scanning (PBS) delivery sequence varies a lot among institutions due to the differences in vendors, machine types, and beamline configurations, which impacts PBS interplay effects and treatment delivery time estimation. This study aims to develop an independent experimental approach to predict the spot scanning time parameters for a clinical superconducting cyclotron proton therapy machine. MATERIALS/METHODS This independent experimental approach employed an open-air parallel-plate detector with a temporal resolution of 0.05ms. A series of spot, energy, and dose rate patterns were designed and delivered, including (1) Spot switching time (SSWT) under different spot spacing for IEC-X, IEC-Y directions and diagonal direction (traveling in both X and Y direction) for three energy layers (110, 170 and 230 MeV); The Wilcoxon test is used to validate the prediction of SSWT along the diagonal direction. (2) Energy layer switching time (ELST) with different descending energy gaps for a fixed initial energy and different initial energies for a fixed descending energy gap. (3) Dose rate (MU/min) are measured for different minimum-MU-per-energy-layer (MMPEL), which are compared with the previous publication. RESULTS A SSWT jump at 10mm (can be customized) spot spacing is observed because of triggering the machine's "raster mode" threshold. Discontinuous two variable piecewise linear functions were used to fit the SSWT in X/Y for spot spacing and energy. SSWT in X/Y is increasing as spot spacing and energy increase. SSWT in the diagonal direction is determined by the time either in the x-direction or y-direction, whichever takes longer (see Table 1 for one example of validations). ELST is linear depending on descending energy gap. The dose rate dependence on MMPEL is confirmed with previous publications of a similar type of machine. CONCLUSION The study provided the first independent quantitative experimental modeling of the beam delivery time parameters without any information from vendors. Such machine-specific delivery sequence models could pave the foundation of precise interplay effect evaluation for clinical decision-making.
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Affiliation(s)
- L Zhao
- Department of Radiation Oncology, Corewell Health William Beaumont University Hospital, Royal Oak, MI
| | - Y Yang
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY
| | - P Liu
- Department of Radiation Oncology, Corewell Health William Beaumont University Hospital, Royal Oak, MI
| | - F Yu
- New York Proton Center, New York, NY
| | - L Hu
- New York Proton Center, New York, NY
| | - M Kang
- New York Proton Center, New York, NY
| | - H Lin
- New York Proton Center, New York, NY
| | - X Ding
- Department of Radiation Oncology, Corewell Health William Beaumont University Hospital, Royal Oak, MI
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Du Y, Fenghu L, JieHui L, Hu L, Mei F, Tian X, Qin Y. Effect of Concurrent Chemoradiotherapy on Regulatory T Cells,CD8/Treg Ratio,PD1 and CTLA-4 in Patients with Cervical Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e510. [PMID: 37785598 DOI: 10.1016/j.ijrobp.2023.06.1766] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To investigate the significance of chemoradiotherapy on regulatory T (Treg) cells, CD8 / Treg ratio, squamous cell carcinoma antigen (SCC), PD1, and CTLA-4 in the peripheral blood of cervical cancer (CC)patients. MATERIALS/METHODS A retrospective study was performed 56 cervical cancer patients treated with concurrent chemoradiotherapy from September 06, 2019 to April 19, 2021 were selected, in patients who underwent surgery. Flow cytometry was used to determine the levels of regulatory T cells, CD8 / Treg ratio, squamous cell carcinoma antigen, PD1, and CTLA-4 in the peripheral blood of patients before and after concurrent therapy, Differences in relative level values before and after treatment were calculated using statistical protocols such as the paired samples t-test. RESULTS The proportion of CD4+CD25+CD127low Treg in CD4+T cells was (15.96±4.29) % in cervical cancer patients and (9.76±4.21) % in healthy controls, and the difference between the two groups was statistically significant (P < 0.05). In different age groups, Treg, CD8 levels, CD4/CD8 ratio and CD8/Treg ratio before and after radiotherapy and chemotherapy had no significant relationship with age and pathological types (P > 0.05), but CD8/Treg ratio was higher in patients with adenocarcinoma than in patients with squamous cell carcinoma after radiotherapy and chemotherapy, and the difference was statistically significant (Z = -2.076 P = 0.038). For postoperative patients, CD8 levels were lower before and after chemoradiotherapy than after chemoradiotherapy (T = -2.320 P = 0.020). In terms of PD1, regardless of age, pathological type, the level of PD1 after radiotherapy and chemotherapy was higher than that before chemotherapy, and the difference was statistically significant. The level of adenocarcinoma (53.50±10.16) % was significantly higher than that of squamous carcinoma (43.72±11.89) % (T = -2.609 P = 0.011). The PD1 level of patients with cervical cancer radical resection (41.64±13.29) % was lower than that of patients without cervical cancer radical resection (46.84±10.61) %, the difference was statistically significant (T = 2.187 P = 0.031). The PD1 level of patients without pelvic lymph node metastasis (48.84±10.04) was significantly higher than that of patients with pelvic lymph node metastasis (42.96±10.85), and the difference was statistically significant (T = -2.019 P = 0.049), There were no significant differences in vascular positivity, invasion depth, stump positivity, pelvic lymph node positivity and Treg level, CD8 level, CTLA4 level, SCC, CD4/CD8 ratio, CD8/Treg ratio (ALL P > 0.05). CONCLUSION The level of Treg cells in patients with cervical cancer is significantly higher than that in healthy people, and it does not decrease immediately after radiotherapy and chemotherapy. Peripheral blood Treg, PD1, CD8 and CD8/Treg can reflect the immune function of the body, which may provide a certain reference for immunotherapy.
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Affiliation(s)
- Y Du
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - L Fenghu
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - L JieHui
- Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - L Hu
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - F Mei
- Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - X Tian
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Y Qin
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
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Dai L, Huang J, Hu L, Wu J, Wang J, Meng Q, Sun F, Duan Q, Yu J. Efficacy of Nimotuzumab plus Concurrent Chemo-Radiotherapy for Unresectable Esophageal Cancer: A Real-World Study. Int J Radiat Oncol Biol Phys 2023; 117:e354. [PMID: 37785223 DOI: 10.1016/j.ijrobp.2023.06.2432] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The esophageal cancer ranked 7th in the morbidity of malignant cancer and the 6th contributed to carcinoma deaths. Most patients are diagnosed of advanced stage at first visiting. The 5-year survival rate of unresectable esophageal cancer is about 20% after the standard treatment of concurrent chemo-radiotherapy. Nimotuzumab, a humanized anti-EGFR antibody, has shown good efficacy and low toxicity in epithelial tumors. This two-center, real-world study evaluated the efficacy and safety of nimotuzumab combined with concurrent chemoradiotherapy in unresectable esophageal squamous cell carcinoma (ESCC). MATERIALS/METHODS Totally 503 eligible unresectable ESCC patients from Jan 2014 to Dec 2020 were included. 1:2 nearest neighbor propensity score matching (PSM) was performed to match the Nimo group (nimotuzumab plus concurrent chemo-radiotherapy) and CRT group (concurrent chemo-radiotherapy), and the covariates included age, gender, tumor location, lesion length, TNM stage, clinical stage, and radiotherapy dose. The primary endpoint was overall survival (OS). The secondary endpoints were progression-free survival (PFS), objective response rate (ORR), and disease control rate (DCR). RESULTS A total of 61 patients were in Nimo group which received nimotuzumab (200 mg/w, 4-6 weeks) combined with concurrent chemo-radiotherapy (chemotherapy: S-1/FP/TP/DP for 2-4 cycles; radiotherapy: 2DRT,3D-CRT or IMRT, 50-70 Gy in 25-35 fractions) and 107 patients in CRT group only received concurrent chemo-radiotherapy. The baseline characteristics were well balanced between the two groups. The efficacy of Nimo group was better than that of CRT group. The ORR was 85.2% vs. 71.0%, (P=0.037), the DCR was 98.4% vs. 91.6%, (P>0.05). The median PFS was 28.07 months vs. 19.54 months, and the 1-, 3- and 5-year PFS rates were 78.2% vs. 72.9%, 37.5% vs. 28.3%, and 29.1% vs. 21.3%, respectively (HR: 0.6860, 95% CI: 0.4902-0.9600, P=0.034). The median OS was 34.93 months vs. 24.30 months and the 1-, 3- and 5-year OS rates were 88.5% vs. 81.3%, 46.8% vs. 35.2% and 37.4% vs. 28.0%, respectively (HR: 0.6701, 95% CI: 0.4792-0.9372, P=0.024). The adverse events including radiation esophagitis, radiation pneumonitis, bone marrow suppression, nausea, vomiting, and rash were no significantly different between the two groups (P>0.05). CONCLUSION Nimotuzumab combined with concurrent chemo-radiotherapy improved the ORR, and prolonged PFS and OS in unresectable ESCC patients with a good tolerance.
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Affiliation(s)
- L Dai
- Department of Radiotherapy, Changzhou Second People's Hospital, Nanjing Medical University, Changzhou, China
| | - J Huang
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - L Hu
- Department of Radiotherapy, Changzhou Second People's Hospital, Nanjing Medical University, Changzhou, China
| | - J Wu
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - J Wang
- Department of Radiotherapy, Changzhou Second People's Hospital, Nanjing Medical University, Changzhou, China
| | - Q Meng
- Department of Radiotherapy, Changzhou Second People's Hospital, Nanjing Medical University, Changzhou, China
| | - F Sun
- Department of Radiotherapy, Changzhou Second People's Hospital, Nanjing Medical University, Changzhou, China
| | - Q Duan
- Department of Radiotherapy, Changzhou Second People's Hospital, Nanjing Medical University, Changzhou, China
| | - J Yu
- Department of Radiation Oncology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Li J, Mu J, Li F, Ran L, Du Y, Mei F, Hu L, Tian X, Hong W, Mao W, Qin Y, Li M, Lu B. Silva Classification System for HPV-Related EAC of Stage I ∼ IIIc1p Cervical Adenocarcinoma and Its Effect on Prognosis and Survival. Int J Radiat Oncol Biol Phys 2023; 117:e526. [PMID: 37785635 DOI: 10.1016/j.ijrobp.2023.06.1801] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The proportion of adenocarcinoma in cervical cancer gradually increased and presented a younger trend. The previous pathological classification of cervical adenocarcinoma is difficult to provide reference for clinical treatment. In recent years, Silva classification, a new pathologic system for cervical adenocarcinoma, has been confirmed to be suitable for HPV-associated adenocarcinoma (HPVA), and has shown certain clinical application value in subsequent studies. Therefore, this study will retrospectively analyze the distribution of Silva typing system in patients with HPVA under standard treatment mode and its relationship with prognosis and survival. MATERIALS/METHODS From January 2010 to September 2021, 124 cervical adenocarcinoma patients with HPVA were retrospectively included, who underwent radical resection of cervical cancer. The HE staining sections of the patients were divided into SilvaA, SilvaB, and SilvaC types according to the Silva typing system. Kaplan-Meier calculation was used for single-factor analysis, and COX stepwise regression model was used for multi-factor analysis. RESULTS Of the 124 patients with HPVA who could be graded according to the Silva system, 16 (12.9%, 16/124) were SilvaA, 27 (21.7%, 27/124) SilvaB, and 81 (65.4%, 81/124) SilvaC. In Silva classification, FIGO staging of Silva A and B was stage I. And FIGO staging of Silva C was more significantly later than the staging of Silva A and B. All lymph node metastases and paruterine infiltrates were found only in Silva C. In addition, the patients with Silva C large mass accounted for a higher proportion (41.7%). SilvaA type cervical adenocarcinoma patients were in a survival state by the end of follow-up. Among Silva B, 3 patients died due to tumor, and the 5-year OS rate were 91.3%. Among SilvaC, 15 patients died due to tumor, and the 5-year OS rate were 76.5%. FIGO stage and lymph node invasion were the influencing factors for survival and prognosis of Silva classification (P <0.05). FIGO stage, tumor size, lymph node invasion, and paralegal invasion were the influencing factors for survival and prognosis of SilvaC patients (P <0.05). CONCLUSION Silva model classification system combined with clinicopathological features has certain clinical value for the prognostic guidance of HPVA patients. Among Silva classification, SilvaC had the worst prognosis. Late FIGO stage, lymph node metastasis, and paralegal infiltration are the influencing factors for survival and prognosis of SilvaC type.
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Affiliation(s)
- J Li
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - J Mu
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - F Li
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - L Ran
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Y Du
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - F Mei
- Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - L Hu
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - X Tian
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - W Hong
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - W Mao
- Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Y Qin
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - M Li
- Department of Gynecologic Oncology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
| | - B Lu
- Department of Oncology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Department of Oncology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
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Yang Q, Wang Y, Yu C, Wang F, Guo M, Zhang L, Shao C, Wang M, Shen H, Qi Y, Hu L. High ytterbium concentration Yb/Al/P/Ce co-doped silica fiber for 1-µm ultra-short cavity fiber laser application. Opt Express 2023; 31:33741-33752. [PMID: 37859147 DOI: 10.1364/oe.500051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 09/02/2023] [Indexed: 10/21/2023]
Abstract
We demonstrate a high ytterbium concentration Yb/Al/P/Ce co-doped silica fiber by conventional modified chemical vapor deposition (MCVD) technology and solution doping process. The fiber has a Yb concentration of about 2.5 wt%, and the corresponding core absorption coefficient is measured to be ∼1400 dB/m at 976 nm. The gain coefficient was measured to be approximately 1.0 dB/cm. It is found that the Yb/Al/P/Ce co-doped silica shows a lower photodarkening-induced equilibrium loss of 52 dB/m at 633 nm than the Yb/Al/P co-doped silica fiber of 117 dB/m. Using the heavily Yb3+-doped silica fiber, a compact and robust ultrashort cavity single-frequency fiber laser was achieved with a maximum output power of 75 mW and a linewidth of 14 kHz. Furthermore, a compact passively mode-locked fiber laser (MLFL) with a repetition rate of 1.23 GHz was also proposed using our developed Yb-doped fiber. The laser properties of the proposed lasers were systematically investigated, demonstrating the superior performance of this fiber in terms of photodarkening resistance and ultrashort-cavity laser application. Furthermore, utilizing an all-fiber structure based on silica-based fiber offers the significant advantage of high stability and reliability.
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Thongchom C, Hu L, Sanit-In PK, Kontoni DPN, Praphaphankul N, Tiprak K, Kongwat S. Experimental Investigation on Post-Fire Mechanical Properties of Glass Fiber-Reinforced Polymer Rebars. Polymers (Basel) 2023; 15:2925. [PMID: 37447570 DOI: 10.3390/polym15132925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/25/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
Glass fiber-reinforced polymer (GFRP) rebars are commonly used as an alternative to conventional steel reinforcement in a variety of structural applications due to their superior low cost, strength-to-weight ratio, and durability. However, their mechanical properties after exposure to elevated temperatures, particularly in fire-prone environments, remain a significant concern. To address this concern, the present study focuses on investigating the residual tensile behavior, specifically the tensile strength and elastic modulus, of GFRP rebars exposed to high temperatures that are realistically encountered during fire incidents. The temperature range considered in this analysis spans from 100 °C to 400 °C, with a heating rate of 20 °C/min. The fire duration of 1 h is used. This comprehensive analysis is essential for enhancing our understanding of the performance and applicability of GFRP rebars in fire-prone environments. Based on their actual application in the construction industry, five specimens of three different rebar sizes (16, 20, and 25 mm) were examined for the effect of rebar size on tensile behavior after fire exposure. In addition, the effects were investigated of air- and water-cooling methods on residual tensile behavior. The nominal tensile strength, elastic modulus, and ultimate strain of GFRP rebars at ambient temperature are 930 MPa, 50.2 GPa and 1.85%, respectively. The test results indicated that as the temperature increased to 400 °C, the ultimate tensile strength of the GFRP bars decreased by up to 55%, while the ultimate strain increased by up to 44%, regardless of the cooling method. In addition, when rebars of sizes 16-25 mm were subjected to a 400 °C fire treatment, the smaller the rebar, the greater the percentage of ultimate tensile and strain reduction. These findings hold great significance for the utilization of GFRP bars within the construction industry. This study offers valuable insights into the design of fire-resilient structures, emphasizing the importance of considering rebar size and cooling methods due to their impact on the post-fire tensile strength and strain of GFRP rebars.
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Affiliation(s)
- Chanachai Thongchom
- Department of Civil Engineering, Faculty of Engineering, Thammasat School of Engineering, Thammasat University, Pathumthani 12120, Thailand
| | - Lili Hu
- State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | | | - Denise-Penelope N Kontoni
- Department of Civil Engineering, School of Engineering, University of the Peloponnese, GR-26334 Patras, Greece
- School of Science and Technology, Hellenic Open University, GR-26335 Patras, Greece
| | - Nitipong Praphaphankul
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, 2-12-1-M1-23 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Koravith Tiprak
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, 2-12-1-M1-23 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Suphanut Kongwat
- Department of Mechanical Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand
- Future Automotive Structure Research Group (FASt), Mobility and Vehicle Technology Research Center, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand
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Hu L, Zhang L, Xiong CZ, Zhang Y, Liu YH, Cai SL. [Effects of cadmium chloride on testicular autophagy and blood-testis barrier integrity in prepubertal male rats]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:401-407. [PMID: 37400398 DOI: 10.3760/cma.j.cn121094-20211020-00508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Objective: To study the effects of cadmium chloride (CdCl(2)) exposure on testicular autophagy levels and blood-testis barrier integrity in prepubertal male SD rats and testicular sertoli (TM4) cells. Methods: In July 2021, 9 4-week-old male SD rats were randomly divided into 3 groups: control group (normal saline), low dose group (1 mg/kg·bw CdCl(2)) and high dose group (2 mg/kg·bw CdCl(2)), and were exposed with CdCl(2) by intrabitoneal injection. 24 h later, HE staining was used to observe the morphological changes of testis of rats, biological tracer was used to observe the integrity of blood-testis barrier, and the expression levels of microtubule-associated protein light chain 3 (LC3) -Ⅰ and LC3-Ⅱ in testicular tissue were detected. TM4 cells were treated with 0, 2.5, 5.0 and 10.0 μmol/L CdCl(2) for 24 h to detect the toxic effect of cadmium. The cells were divided into blank group (no exposure), exposure group (10.0 μmol/L CdCl(2)), experimental group[10.0 μmol/L CdCl(2)+60.0 μmol/L 3-methyladenine (3-MA) ] and inhibitor group (60.0 μmol/L 3-MA). After 24 h of treatment, Western blot analysis was used to detect the expression levels of LC3-Ⅱ, ubiquitin binding protein p62, tight junction protein ZO-1 and adhesion junction protein N-cadherin. Results: The morphology and structure of testicular tissue in the high dose group were obvious changed, including uneven distribution of seminiferous tubules, irregular shape, thinning of seminiferous epithelium, loose structure, disordered arrangement of cells, abnormal deep staining of nuclei and vacuoles of Sertoli cells. The results of biological tracer method showed that the integrity of blood-testis barrier was damaged in the low and high dose group. Western blot results showed that compared with control group, the expression levels of LC3-Ⅱ in testicular tissue of rats in low and high dose groups were increased, the differences were statistically significant (P<0.05). Compared with the 0 μmol/L, after exposure to 5.0, 10.0 μmol/L CdCl(2), the expression levels of ZO-1 and N-cadherin in TM4 cells were significantly decreased, and the expression level of p62 and LC3-Ⅱ/LC3-Ⅰ were significantly increased, the differences were statistically significant (P<0.05). Compared with the exposure group, the relative expression level of p62 and LC3-Ⅱ/LC3-Ⅰ in TM4 cells of the experimental group were significantly decreased, while the relative expression levels of ZO-1 and N-cadherin were significantly increased, the differences were statistically significant (P<0.05) . Conclusion: The mechanism of the toxic effect of cadmium on the reproductive system of male SD rats may be related to the effect of the autophagy level of testicular tissue and the destruction of the blood-testis barrier integrity.
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Affiliation(s)
- L Hu
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, China
| | - L Zhang
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, China
| | - C Z Xiong
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Y Zhang
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Y H Liu
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, China
| | - S L Cai
- Department of Dermatology, Hospital of Wuhan University of Science and Technology, Wuhan 430065, China
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Wu D, Yu F, Wu C, Zhao M, Zheng J, Hu L, Knight J. Low-loss multi-mode anti-resonant hollow-core fibers. Opt Express 2023; 31:21870-21880. [PMID: 37381274 DOI: 10.1364/oe.492787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/01/2023] [Indexed: 06/30/2023]
Abstract
In this work, multi-mode anti-resonant hollow-core fiber (AR-HCF) with 18 fan-shaped resonators is fabricated and characterized. The ratio of core diameter over transmitted wavelengths in the lowest transmission band is up to 85. The measured attenuation at 1 µm wavelength is below 0.1 dB/m and the bend loss below 0.2 dB/m at a bend radius smaller than 8 cm. Modal content of the multi-mode AR-HCF is characterized using the S2 imaging technique and seven LP-like modes in total are identified using a 23.6 meter fiber length. Multi-mode AR-HCFs for longer wavelengths are fabricated by scaling up the same design, extending the transmission window beyond 4 µm wavelength. Low-loss multi-mode AR-HCF could find applications in the delivery of high-power laser light with a medium beam quality, where higher coupling efficiency and laser damage threshold are expected.
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Yang Q, Wang Y, Yu C, Wang F, Wang M, Zhang L, Hu L. Sub-kHz linewidth 1.6-µm single-frequency fiber laser based on a heavily erbium-doped silica fiber. Opt Lett 2023; 48:2563-2566. [PMID: 37186709 DOI: 10.1364/ol.487959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We present a single-frequency erbium-doped fiber laser operated at 1608.8 nm using a homemade, heavily erbium-doped silica fiber as gain medium. The laser configuration is based on a ring cavity, which is combined with a fiber saturable absorber to achieve single-frequency operation. The measured laser linewidth is less than 447 Hz and the optical signal-to-noise ratio exceeds 70 dB. The laser exhibits an excellent stability, without any instance of mode-hopping during 1-hour observing. The fluctuations in both wavelength and power were measured to be 0.002 nm and less than 0.09 dB in a 45-minutes period. The laser produces over 14 mW of output power with a slope efficiency of 5.3%, which, to the best of our knowledge, is currently the highest power directly obtained from a single-frequency cavity based on an erbium-doped silica fiber above 1.6 µm.
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Wang Y, Sun Y, Wang X, Chen Y, Shao C, Wang S, Zhang L, Chen D, Yu C, Hu L. Efficient three-level continuous-wave and GHz passively mode-locked laser by a Nd 3+-doped silicate glass single mode fiber. Opt Express 2023; 31:13307-13316. [PMID: 37157470 DOI: 10.1364/oe.479435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Nd3+-doped three-level (4F3/2-4I9/2) fiber lasers with wavelengths in the range of 850-950 nm are of considerable interest in applications such as bio-medical imaging and blue and ultraviolet laser generation. Although the design of a suitable fiber geometry has enhanced the laser performance by suppressing the competitive four-level (4F3/2-4I11/2) transition at ∼1 µm, efficient operation of Nd3+-doped three-level fiber lasers still remains a challenge. In this study, taking a developed Nd3+-doped silicate glass single-mode fiber as gain medium, we demonstrate efficient three-level continuous-wave lasers and passively mode-locked lasers with a gigahertz (GHz) fundamental repetition rate. The fiber is designed using the rod-in-tube method and has a core diameter of 4 µm with a numerical aperture of 0.14. In a short 4.5-cm-long Nd3+-doped silicate fiber, all-fiber CW lasing in the range of 890 to 915 nm with a signal-to-noise ratio (SNR) greater than 49 dB is achieved. Especially, the laser slope efficiency reaches 31.7% at 910 nm. Furthermore, a centimeter-scale ultrashort passively mode-locked laser cavity is constructed and ultrashort pulse at 920 nm with a highest GHz fundamental repetition is successfully demonstrated. Our results confirm that Nd3+-doped silicate fiber could be an alternative gain medium for efficient three-level laser operation.
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Hu L, Ye L, Guo M, Liu Y. The Impact of Leader Humor on Employee Creativity during the COVID-19 Period: The Roles of Perceived Workload and Occupational Coping Self-Efficacy. Behav Sci (Basel) 2023; 13:bs13040303. [PMID: 37102817 PMCID: PMC10136144 DOI: 10.3390/bs13040303] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/15/2023] [Accepted: 03/08/2023] [Indexed: 04/05/2023] Open
Abstract
Based on the relief theory and similarity attraction theory, this study investigates the influence of leader humor on employee creativity through the mediate impact of employees’ perceived workload, occupational coping self-efficacy, and employee similarity perception with a leader as a potential moderator. The data were collected through an online survey that included matched questionnaire data from 351 employees and their direct leaders in China. This study used SPSS 26 software and Mplus 7.0 software to analyze the data and found that (1) leader humor has a significant positive impact on employees’ creativity; (2) employees’ perceived workload and occupational coping self-efficacy mediated the positive relationship between leader humor and employee creativity; (3) similarity perception negatively moderated the influence of leader humor on perceived workload, and it also positively moderated the influence of leader humor on occupational coping self-efficacy. In addition to corroborating and expanding on previous findings regarding the relationship between leader humor and employee creativity during the COVID-19 period, the aforementioned conclusions also derive management implications for fostering employee creativity and reducing employee workload from the perspective of leader humor.
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Affiliation(s)
- Lili Hu
- School of Economics and Management, Beijing Jiaotong University, Beijing 100044, China
| | - Long Ye
- School of Economics and Management, Beijing Jiaotong University, Beijing 100044, China
| | - Ming Guo
- School of Economics and Management, Beijing Jiaotong University, Beijing 100044, China
| | - Yunshuo Liu
- School of Economics and Management, Beijing Jiaotong University, Beijing 100044, China
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31
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Lin X, Li Q, Hu L, Jiang C, Wang S, Wu X. Apical Papilla Regulates Dental Follicle Fate via the OGN-Hh Pathway. J Dent Res 2023; 102:431-439. [PMID: 36515316 DOI: 10.1177/00220345221138517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Root apical complex, including Hertwig's epithelial root sheath, apical papilla, and dental follicle (DF), is the germinal center of root development, wherein the DF constantly develops into periodontal tissue. However, whether DF development is regulated by the adjacent apical papilla remains largely unknown. In this study, we employed a transwell coculture system and found that stem cells from the apical papilla (SCAPs) inhibit the differentiation and maintain the stemness of dental follicle stem cells (DFSCs). Meanwhile, partial SCAP differentiation markers were upregulated after DFSC coculture. High-throughput RNA sequencing revealed that the Hedgehog (Hh) pathway was significantly downregulated in DFSCs cocultured with SCAPs. Upregulation or downregulation of the Hh pathway can respectively activate or inhibit the multidirectional differentiation of DFSCs. Osteoglycin (OGN) (previously known as mimecan) is highly expressed in the dental papilla, similarly to Hh pathway factors. By secreting OGN, SCAP regulated the stemness and multidirectional differentiation of DFSCs via the OGN-Hh pathway. Finally, Ogn-/- mice were established using the CRISPR/Cas9 system. We found that the root length growth rate was accelerated during root development from PN0 to PN30 in Ogn-/- mice. Moreover, the hard tissues (including dentin and cementum) of the root in Ogn-/- mice were thicker than those in wild-type mice. These phenotypes were likely due to Hh pathway activation and the increased cell proliferation and differentiation in both the apical papilla and DF. The current work elucidates the molecular regulation of early periodontal tissue development, providing a theoretical basis for future research on tooth root biology and periodontal tissue regeneration.
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Affiliation(s)
- X Lin
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital, Central South University, Changsha, China
- Academician Workstation for Oral-Maxillofacial Regenerative Medicine, Central South University, Changsha, China
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Q Li
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - L Hu
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - C Jiang
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital, Central South University, Changsha, China
- Academician Workstation for Oral-Maxillofacial Regenerative Medicine, Central South University, Changsha, China
| | - S Wang
- Academician Workstation for Oral-Maxillofacial Regenerative Medicine, Central South University, Changsha, China
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
- Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medical Sciences, Beijing, China
| | - X Wu
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital, Central South University, Changsha, China
- Academician Workstation for Oral-Maxillofacial Regenerative Medicine, Central South University, Changsha, China
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China
- Research Center of Oral and Maxillofacial Development and Regeneration, Xiangya Hospital, Central South University, Changsha, China
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Gu T, Zhang X, Gong Y, Zhang T, Hu L, Yu Y, Deng C, Xiao Y, Zheng M, Zhou Y. An investigation into structural properties and stability of debranched starch-lycopene inclusion complexes with different branching degrees. Int J Biol Macromol 2023; 233:123641. [PMID: 36773868 DOI: 10.1016/j.ijbiomac.2023.123641] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 01/17/2023] [Accepted: 02/07/2023] [Indexed: 02/11/2023]
Abstract
Debranched starch (DBS) has great probability as carrier for bioactive ingredients, but effects of branching degree (DB) on the complex formation of starch remain unclear. This study investigated the potential of DBS with different DB to load lycopene and characterized the structural properties of inclusion complexes. Glutinous rice starch was debranched to get DBS with different molecular weights, where DBS with a branching degree of 11.42 % had the greatest encapsulation efficiency (64.81 %). SEM, particle size, and zeta-potential results showed that the complexes form stable spherical crystals through electrostatic interactions. The structures of complexes were resolved by FTIR, XRD, TGA, and 13C CP/MAS NMR analytical techniques, indicating that lycopene can be loaded on DBS by the self-assembly through hydrophobic and hydrogen bonding interactions. Degradation experiments revealed that retention of complexes was significantly higher than the unencapsulated one. Our study reveals the structural features of the complex between DBS and lycopene, providing theoretical guidance for developing and producing novel nutraceuticals.
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Affiliation(s)
- Tingting Gu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Xiumei Zhang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Yongqiang Gong
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Tiantian Zhang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Lili Hu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Yiyang Yu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Changyue Deng
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Yaqing Xiao
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Mingming Zheng
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Yibin Zhou
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China.
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Hu L, Pan Y, Wang B, Han Z, Gao J. Application of CT functional imaging in the assessment of chemotherapy efficacy in lung cancer. Biotechnol Genet Eng Rev 2023:1-16. [PMID: 36999686 DOI: 10.1080/02648725.2023.2193063] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
Abstract
In this research, we aim to investigate the feasibility of a one-stop CT energy spectrum perfusion imaging technique for chemotherapy efficacy assessment of lung cancer patients by obtaining both functional imaging parameters of energy spectrum and perfusion in one scan. From November 2018 to February 2020, a group of 23 patients with pathologically confirmed lung cancer were chosen to undergo CT energy spectrum scans both before and after treatment. The post-treatment CT perfusion data was acquired one week after the second conventional chemotherapy session. Out of the 23 patients, 15 were in the chemotherapy effective group and the remaining 8 were in the ineffective group. The reason for this group was according to recist criteria. Arterial phase iodine concentration (icap) and intravenous phase iodine concentration (icpp) of the lesions were measured, and standardized iodine base values (nic) were calculated. The maximum diameter of the tumor before and after treatment was compared to the perfusion parameters and energy spectrum parameters before and after chemotherapy in the effective group and the invalid group was compared by two tests that p<0.05. The differences between the maximum diameter of the tumor before and after chemotherapy. 2 of the 15 patients in the effective group had liquefied necrotic areas in their lesions. One-stop ct energy-spectrum perfusion imaging can show the disease progression from a functional perspective and assess the efficacy early according to the changes in perfusion parameters and energy-spectrum parameters after lung cancer treatment.
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Affiliation(s)
- Lili Hu
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yuanwei Pan
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Bo Wang
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhenzhen Han
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jianbo Gao
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Huang Y, Zhao H, Li Z, Hu L, Wu Y, Sun F, Meng S, Zhao J. Laser-Induced Hole Coherence and Spatial Self-Phase Modulation in the Anisotropic 3D Weyl Semimetal TaAs. Adv Mater 2023; 35:e2208362. [PMID: 36578126 DOI: 10.1002/adma.202208362] [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: 09/12/2022] [Revised: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Laser-induced electron coherence is a fascinating topic in manipulating quantum materials. Recently, it has been shown that laser-induced electron coherence in 2D materials can produce a third-order nonlinear optical response spatial self-phase modulation (SSPM), which has been used to develop a novel all-optical switching scheme. However, such investigations have mainly focused on electron coherence, whereas laser-induced hole coherence is rarely explored. Here, the observation of the optical Kerr effect in 3D Weyl semimetal TaAs flakes is reported. The nonlinear susceptibility (χ(3) ) is obtained, which exhibits a surprisingly high value (with χ o n e - l a y e r ( 3 ) \[{\bm{\chi }}_{{\bf one}{\bm{ - }}{\bf layer}}^{{\bf (3)}}\] = 9.9 × 10-9 e.s.u. or 1.4 × 10-16 m2 V-2 at 532 nm). This cannot be explained by the conventional electron mobility, but can be well understood by the unique high anisotropic hole mobility of TaAs. The wind-chime model and χ(3) carrier mobility correlation adequately explain the results, suggesting the crucial role of laser-induced nonlocal ac hole coherence. These observations extend the understanding of SSPM from 2D to 3D quantum materials with anisotropic carrier mobility and from electron coherence to hole coherence.
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Affiliation(s)
- Yixuan Huang
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hui Zhao
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhilin Li
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lili Hu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yanling Wu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Fei Sun
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Sheng Meng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
| | - Jimin Zhao
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
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Luo Y, Chen J, Cui Y, Fang F, Zhang Z, Hu L, Chen X, Li Z, Li L, Chen L. Transcriptome-wide high-throughput m 6 A sequencing of differential m 6 A methylation patterns in the decidual tissues from RSA patients. FASEB J 2023; 37:e22802. [PMID: 36786696 DOI: 10.1096/fj.202201232rrrr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 01/04/2023] [Accepted: 01/23/2023] [Indexed: 02/15/2023]
Abstract
Recurrent spontaneous abortion (RSA) is characterized by two or more consecutive pregnancy losses in the first trimester of pregnancy, experienced by 5% of women during their reproductive age. As a complex pathological process, the etiology of RSA remains poorly understood. Recent studies have established that gene expression changes dramatically in human endometrial stromal cells (ESCs) during decidualization. N6-methyladenosine (m6 A) modification is the most prevalent epigenetic modification of mRNA in eukaryotic cells and it is closely related to the occurrence and development of many pathophysiological phenomena. In this study, we first confirmed that high levels of m6 A mRNA methylation in decidual tissues are associated with RSA. Then, we used m6 A-modified RNA immunoprecipitation sequence (m6 A-seq) and RNA sequence (RNA-seq) to identify the differentially expressed m6 A methylation in decidual tissues from RSA patients and identified the key genes involved in abnormal decidualization by bioinformatics analysis. Using m6 A-seq, we identified a total of 2169 genes with differentially expressed m6 A methylation, of which 735 m6 A hypermethylated genes and 1434 m6 A hypomethylated genes were identified. Further joint analysis of m6 A-seq and RNA-seq revealed that 133 genes were m6 A modified with mRNA expression. GO and KEGG analyses indicated that these unique genes were mainly enriched in environmental information processing pathways, including the cytokine-cytokine receptor interaction and PI3K-Akt signaling pathway. In summary, this study uncovered the transcriptome-wide m6 A modification pattern in decidual tissue of RSA, which provides a theoretical basis for further research into m6 A modification and new therapeutic strategies for RSA.
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Affiliation(s)
- Yong Luo
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, China.,Central Laboratory, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, China
| | - Jin Chen
- Department of Traditional Chinese Medicine, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, China
| | - Ying Cui
- Department of Traditional Chinese Medicine, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, China
| | - Fang Fang
- Department of Traditional Chinese Medicine, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, China
| | - Ziyu Zhang
- Department of Pathology, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, China
| | - Lili Hu
- Ambulatory Surgery Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, China
| | - Xiaoyong Chen
- Department of Traditional Chinese Medicine, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, China
| | - Zengming Li
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, China.,Central Laboratory, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, China
| | - Liping Li
- Prenatal Diagnosis Center, Key Laboratory of Women's Reproductive Health of Jiangxi Province, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, China
| | - Lina Chen
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
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Bi D, Unthan DM, Hu L, Bussmann J, Remaut K, Barz M, Zhang H. Polysarcosine-based lipid formulations for intracranial delivery of mRNA. J Control Release 2023; 356:1-13. [PMID: 36803765 DOI: 10.1016/j.jconrel.2023.02.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 01/05/2023] [Accepted: 02/14/2023] [Indexed: 02/23/2023]
Abstract
Messenger RNA (mRNA) is revolutionizing the future of therapeutics in a variety of diseases, including neurological disorders. Lipid formulations have shown to be an effective platform technology for mRNA delivery and are the basis for the approved mRNA vaccines. In many of these lipid formulations, polyethylene glycol (PEG)-functionalized lipid provides steric stabilization and thus plays a key role in improving the stability both ex vivo and in vivo. However, immune responses towards PEGylated lipids may compromise the use of those lipids in some applications (e.g., induction of antigen specific tolerance), or within sensitive tissues (e.g., central nervous system (CNS)). With respect to this issue, polysarcosine (pSar)-based lipopolymers were investigated as an alternative to PEG-lipid in mRNA lipoplexes for controlled intracerebral protein expression in this study. Four polysarcosine-lipids with defined sarcosine average molecular weight (Mn = 2 k, 5 k) and anchor diacyl chain length (m = 14, 18) were synthesized, and incorporated into cationic liposomes. We found that the content, pSar chain length and carbon tail lengths of pSar-lipids govern the transfection efficiency and biodistribution. Increasing carbon diacyl chain length of pSar-lipid led up to 4- and 6-fold lower protein expression in vitro. When the length of either pSar chain or lipid carbon tail increased, the transfection efficiency decreased while the circulation time was prolonged. mRNA lipoplexes containing 2.5% C14-pSar2k resulted in the highest mRNA translation in the brain of zebrafish embryos through intraventricular injection, while C18-pSar2k-liposomes showed a comparable circulation with DSPE-PEG2k-liposomes after systemic administration. To conclude, pSar-lipid enable efficient mRNA delivery, and can substitute PEG-lipids in lipid formulations for controlled protein expression within the CNS.
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Affiliation(s)
- Dongdong Bi
- Leiden Academic Centre for Drug Research (LACDR), Leiden University, Einsteinweg 55, 2333, CC, Leiden, the Netherlands
| | - Dennis Mark Unthan
- Leiden Academic Centre for Drug Research (LACDR), Leiden University, Einsteinweg 55, 2333, CC, Leiden, the Netherlands
| | - Lili Hu
- Leiden Academic Centre for Drug Research (LACDR), Leiden University, Einsteinweg 55, 2333, CC, Leiden, the Netherlands
| | - Jeroen Bussmann
- Leiden Academic Centre for Drug Research (LACDR), Leiden University, Einsteinweg 55, 2333, CC, Leiden, the Netherlands
| | - Katrien Remaut
- Laboratory for General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium
| | - Matthias Barz
- Leiden Academic Centre for Drug Research (LACDR), Leiden University, Einsteinweg 55, 2333, CC, Leiden, the Netherlands; Department of Dermatology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.
| | - Heyang Zhang
- Leiden Academic Centre for Drug Research (LACDR), Leiden University, Einsteinweg 55, 2333, CC, Leiden, the Netherlands.
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Luo C, Qin SX, Wang QY, Li YF, Qu XL, Yue C, Hu L, Sheng ZF, Wang XB, Wan XM. Cost-effectiveness analysis of five drugs for treating postmenopausal women in the United States with osteoporosis and a very high fracture risk. J Endocrinol Invest 2023; 46:367-379. [PMID: 36044169 PMCID: PMC9428883 DOI: 10.1007/s40618-022-01910-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/20/2022] [Indexed: 01/25/2023]
Abstract
PURPOSE Five strategies were recommended by the American Association of Clinical Endocrinologists/American College of Endocrinology (AACE/ACE) guidelines for the treatment of postmenopausal osteoporosis (PMO) patients with a very high fracture risk. We aimed to assess their cost-effectiveness in the United States (US). METHODS A microsimulation Markov model was created to compare the cost-effectiveness of five treatment strategies, including zoledronate, denosumab, abaloparatide, teriparatide, and romosozumab in PMO patients with a recent fracture from the healthcare perspective of the US. The data used in the model were obtained from published studies or online resources. Base-case analysis, one-way deterministic sensitivity analysis (DSA) and probability sensitivity analysis (PSA) were conducted for 65-, 70-, 75-, and 80-year-old patients. RESULTS In base case, at 65 years, zoledronate was the cheapest strategy. The incremental cost-effectiveness ratios (ICER, which represent incremental costs per QALY gained) of denosumab, teriparatide, abaloparatide, and romosozumab against zoledronate were $13,020/QALY (quality-adjusted years), $477,331 /QALY, $176,287/QALY, and $98,953/QALY, respectively. Under a willing-to-pay (WTP, which means the highest price a consumer will pay for one unit of a good of service) threshold of $150,000/QALY, denosumab and romosozumab were cost-effective against zoledronate. The PSA results showed that denosumab was the most cost-effective option with WTP thresholds of $50,000/QALY, $100,000/QALY and $150,000/QALY. The results were similar in other age groups. The DSA results indicated that the most common parameters that have important influence on the outcome were drug persistence, incidence of adverse events, the efficacy of drugs on hip fractures and the cost of the drug. CONCLUSION AND RELEVANCE Among PMO patients with a very high fracture risk in the US, zoledronate is the cheapest strategy and denosumab is the most cost-effective choice among these five strategies.
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Affiliation(s)
- C Luo
- Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Department of Metabolism and Endocrinology, Health Management Center, National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, People's Republic of China
| | - S-X Qin
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, People's Republic of China
| | - Q-Y Wang
- Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Department of Metabolism and Endocrinology, Health Management Center, National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, People's Republic of China
| | - Y-F Li
- Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Department of Metabolism and Endocrinology, Health Management Center, National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, People's Republic of China
| | - X-L Qu
- Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Department of Metabolism and Endocrinology, Health Management Center, National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, People's Republic of China
| | - C Yue
- Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Department of Metabolism and Endocrinology, Health Management Center, National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, People's Republic of China
| | - L Hu
- Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Department of Metabolism and Endocrinology, Health Management Center, National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, People's Republic of China
| | - Z-F Sheng
- Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Department of Metabolism and Endocrinology, Health Management Center, National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, People's Republic of China.
| | - X-B Wang
- Divisions of Endocrinology, Metabolism, and Nutrition, Departments of Medicine and Surgery, Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - X-M Wan
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, People's Republic of China.
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He D, Liao M, Hu L, Yu C, Qi Y, Shen H, Chen L, Yang Q, Liu M, Wang M, Zhou Q, Gao W, Wang T. Brillouin gain spectrum characterization in an acoustic anti-guided delivery fiber for high power narrow linewidth laser. Opt Express 2023; 31:1888-1900. [PMID: 36785214 DOI: 10.1364/oe.470550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 11/24/2022] [Indexed: 06/18/2023]
Abstract
The Brillouin gain spectrum (BGS) provides key information for stimulated Brillouin scattering (SBS), such as the Brillouin frequency shift (BFS), Brillouin spontaneous linewidth, and Brillouin gain coefficient. In this study, we theoretically investigate the field distributions and BGS characterization of Ge-doped, Al-doped, and Al/Ge co-doped fibers. Additionally, we analyzed and compared the relationship between the BGS and acoustic refractive index. In particular, we demonstrate the crucial role played by acoustic modes in anti-waveguide structures. The simulation results show that the Brillouin gain coefficient decreases with a decreasing acoustic index in the fiber core region. Furthermore, we experimentally measure the SBS threshold and BGS of the Al/Ge co-doped fiber to examine the validity of the numerical model. The simulated and experimental results are consistent.
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Sun Y, Yang Q, Wang Y, Wang F, Jiang X, Wang X, Hu L, Yu C, Liao M, Chen S. Extending laser wavelengths to 1630 nm in centimeter-scale Er-phosphate fiber. Opt Lett 2023; 48:456-459. [PMID: 36638482 DOI: 10.1364/ol.480921] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
The spectral bandwidth of Er-doped fibers limits their lasing wavelength at longer wave band. Here, to the best of our knowledge, we report a broad emission band (1420‒1680 nm) of Er3+ and demonstrate for the first time an Er-phosphate fiber, which supports laser oscillation at the extended wavelengths of 1627 nm and 1630 nm, with the output powers and slope efficiencies of 44 mW/12.5% and 16.5 mW/5.6%, respectively, pumped at 1480 nm. To the best of our knowledge, these are the highest output powers and slope efficiencies at 1627 nm and 1630 nm from an Er3+-doped all-fiber configuration.
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Wang H, Hu L, Chang X, Hu Y, Zhang Y, Zhou P, Cui X. Determination of bacterial toxin toxoflavin and fervenulin in food and identification of their degradation products. Food Chem 2023; 399:134010. [DOI: 10.1016/j.foodchem.2022.134010] [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] [Received: 03/08/2021] [Revised: 07/26/2022] [Accepted: 08/22/2022] [Indexed: 11/29/2022]
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Zhong M, Chalbatani GM, Deng M, Li Q, Gharagouzloo E, Hamblin MR, Suarez ER, Hu L, Wang D. Functional characterization and development of novel human kinase insert domain receptor chimeric antigen receptor T-cells for immunotherapy of non-small cell lung cancer. Eur J Pharm Sci 2023; 180:106331. [PMID: 36384203 DOI: 10.1016/j.ejps.2022.106331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 11/10/2022] [Accepted: 11/12/2022] [Indexed: 11/15/2022]
Abstract
CAR-T cell therapy, in which T cells are transfected or transduced with a chimeric antigen receptor (CAR), is a transformative type of cancer immunotherapy. Despite outstanding success in hematological malignancies, their efficacy against solid tumors has been limited. Here, we aimed to explore whether T cells modified by a CAR targeting the vascular endothelial growth factor 2 receptor/ kinase insert domain receptor (KDR) could destroy tumors and their vasculature. A second-generation KDR-CAR was constructed and transfected into T cells using lentivirus. The 3D structure of the CAR construct and target antigen was predicted. Moreover, in silico analysis, including molecular docking and molecular dynamics (MD) simulation, were used to evaluate the minimum energy of interaction and stability of the complex. The anti-cancer effect of KDR-specific CAR-T cells was tested with KDR-expressing and KDR overexpressing A549 cell line. The in-silico study suggested that this CAR construct could be effective for lung cancer therapy. We evaluated this using both in vitro and in vivo experiments. The KDR-CAR-T cells targeted and killed KDR-A549 with high efficiency by expressing IFN-γ and releasing granzyme B. The in vivo study showed that KDR-CAR-T cells dramatically inhibited the growth of lung cancer KDR-A549 xenografts in BALB/c-nu mice at day 10. The characterization of T cells modified by KDR-CAR by computational biology and wet-lab experiments suggested its applicability as a new treatment strategy for lung cancer and, potentially, for other vascularized solid tumors.
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Affiliation(s)
- Ming Zhong
- Department of Biopharmaceuticals, School of Life Science and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, China; School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | | | - Meifang Deng
- Department of Biopharmaceuticals, School of Life Science and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, China; School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Qiuyi Li
- Department of Biopharmaceuticals, School of Life Science and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, China
| | - Elahe Gharagouzloo
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Science, Tehran, Iran
| | - Michael R Hamblin
- Laser Research Centre, University of Johannesburg, Doornfontein 2028, South Africa
| | - Eloah Rabello Suarez
- Center for Natural and Human Sciences, Federal University of ABC, Santo Andre, SP 09210-580, Brazil
| | - Lili Hu
- Department of Biopharmaceuticals, School of Life Science and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, China; Guangdong Province Key Laboratory for Biotechnology Drug Candidates, Guangdong Pharmaceutical University, Guangzhou, China.
| | - Dingding Wang
- Department of Biopharmaceuticals, School of Life Science and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, China; Guangdong Province Key Laboratory for Biotechnology Drug Candidates, Guangdong Pharmaceutical University, Guangzhou, China.
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Rong F, Shi R, Hu L, Chen R, Wang D, Lv X, Zhao Y, Huang W, Yang Y, Zhou H, Hong K. Low-dose computed tomography for lung cancer screening in Anhui, China: A randomized controlled trial. Front Oncol 2022; 12:1059999. [PMID: 36591449 PMCID: PMC9795014 DOI: 10.3389/fonc.2022.1059999] [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: 10/02/2022] [Accepted: 11/30/2022] [Indexed: 12/15/2022] Open
Abstract
Background Lung cancer is the leading cause of cancer-related death worldwide, with risk factors such as age and smoking. Low-dose computed tomography screening can reduce lung cancer mortality. However, its effectiveness in Asian populations remains unclear. Most Asian women with lung cancer are non-smokers who have not been screened. We conducted a randomized controlled trial to evaluate the performance of low-dose computed tomography screening in a Chinese population, including high-risk smokers and non-smokers exposed to passive smoking. The baseline data are reported in this study. Methods Between May and December 2019, eligible participants were randomized in a ratio of 1:1:1 to a screening (two arms) or control cohort. Non-calcified nodules/masses with a diameter >4 mm on low-dose computed tomography were considered positive findings. Results In total, 600 patients (mean age, 59.1 ± 6.9 years) underwent low-dose computed tomography. Women accounted for 31.5% (189/600) of patients; 89.9% (170/189) were non-smokers/passive smokers. At baseline, the incidence of lung cancer was 1.8% (11/600). The incidence of lung cancer was significantly lower in smokers than in female non-smokers/passive smokers (1.0% [4/415] vs. 4.1% [7/170], respectively; P=0.017). Stage 0-I lung cancer accounted for 90.9% (10/11) of cases. Conclusions We demonstrate the importance of including active smokers and female non-smokers/passive smokers in lung cancer screening programs. Further studies are needed to explore the risk factors, and long-term cost-benefit of screening Asian non-smoking women. Clinical trial registration http://chictr.org.cn/showproj.aspx?proj=39003, identifier ChiCTR1900023197.
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Cheng J, Sun YL, Wang ZQ, Zhang JT, Hu L, Lu QK. [Present situation of myopia among primary and junior high school students in Yinzhou District, Ningbo City, Zhejiang Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1815-1820. [PMID: 36536571 DOI: 10.3760/cma.j.cn112150-20220110-00031] [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: 06/17/2023]
Abstract
Objective: To determine the situation of myopia among primary and junior high school students from 2019 to 2021 in Yinzhou District, Ningbo City, Zhejiang Province. Methods: Cross-sectional study. Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, carried out a cross-sectional study by reviewing the results of five times visual acuity screens among primary and junior high school students from 2019 to 2021 in Yinzhou District, Ningbo City, Zhejiang Province. The myopia rate, High myopia rate and spherical equivalent refraction were calculated according to the uncorrected distance visual acuity and non-cycloplegic subjective refraction. Chi-square test and analysis of variance were used to analysis the difference of myopia among term, sex and eye. Results: The visual acuity screen had been completed five times from 2019 to 2021 in Yinzhou District, with a total of 458 654 people, of which 454 812 people met the inclusion criteria. The myopia rate of each screen is 56.6%(50 443/89 122),52.5%(48 463/92 311),63.7%(57 968/91 002),53.2%(48 351/90 886),64.4%(58 920/91 491). The rate of Myopia increased gradually with promoting to high grade, and it was obviously in low grade,up to 17.6%. Conclusion: The myopia rate of primary and junior high school students was raising volatility from 2019 to 2021 in Yinzhou District, Ningbo City, Zhejiang Province.
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Affiliation(s)
- J Cheng
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, Ningbo 315100,China
| | - Y L Sun
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, Ningbo 315100,China
| | - Z Q Wang
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, Ningbo 315100,China
| | - J T Zhang
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, Ningbo 315100,China
| | - L Hu
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, Ningbo 315100,China
| | - Q K Lu
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, Ningbo 315100,China
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Li H, Shen J, Zhang Y, Hu L, Luo W. 6-Shogaol protects against isoproterenol-induced cardiac injury in rats through attenutating oxidative stress, inflammation, apoptosis and activating nuclear respiratory factor-2/heme oxygenase-1 signaling pathway. J Physiol Pharmacol 2022; 73. [PMID: 37087565 DOI: 10.26402/jpp.2022.6.06] [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] [Received: 08/23/2022] [Accepted: 12/31/2022] [Indexed: 04/24/2023]
Abstract
The current study investigated the preventive effect of 6-Shogaol on isoproterenol hydrochloride (ISO)-induced myocardial cardiac injury. 6-Shogaol (50 mg/kg b.w.) was administered for 14 days at pretreatment and ISO-induction (85 mg/kg b.w.) for the last two days (13th and 14th days) by subcutaneous injection. Cardiac markers in serum like creatine kinase (CK), creatine kinase-MB (CK-MB), lactate dehydrogenase (LDH), cardiac troponins T (cTn T) and I (cTn I) increased in ISO-induced rats. Moreover, lipid peroxidative markers like thiobarbituric acid reactive substances (TBARS) and lipid hydroperoxides (LOOH) were raised, and the activities/level of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and reduced glutathione (GSH) were diminished in ISO-treated heart tissue. In addition, inflammatory and nuclear respiratory factor (Nrf)-2 signalling molecules were upregulated in ISO-induced ischemic rats. 6-Shogaol pretreatment decreased the activities of cardiac and lipid peroxidative markers and enhanced the antioxidant status in ISO-induced cardiac injury rats. Further, 6-Shogaol pretreatment inhibited serum inflammatory markers: tumour necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), nuclear factor-kappaB (NF-κB), Nrf-2 molecule and heme oxygenase (HO)-1 in ISO-induced cardial damage rats. We noticed the effect of 6-Shogaol inhibited pro-apoptotic genes like B-cell lymphoma 2 (Bcl-2)-associated X protein (Bax), Fas, caspase-3, -8, -9, cytochrome C, and inflammatory genes and increased Bcl-2 expression in ISO-treated rats. The cardioprotective activity of 6-Shogaol in rats with ISO-induced myocardial damage may be due to its ability to reduce oxidative stress, inflammation, and apoptosis, perhaps via the Nrf-2/HO-1 signalling pathway.
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Affiliation(s)
- H Li
- Department of Cardiology, Huizhou Municipal Central Hospital, Huizhou 516000, China.
| | - J Shen
- Department of Cardiology, Huizhou Municipal Central Hospital, Huizhou 516000, China
| | - Y Zhang
- Department of Cardiology, Huizhou Municipal Central Hospital, Huizhou 516000, China
| | - L Hu
- Department of Cardiology, Huizhou Third People's Hospital, Huizhou, 516000, China
| | - W Luo
- Department of Cardiology, Huizhou Third People's Hospital, Huizhou, 516000, China
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Huang DY, Ma L, Lyu LL, Hu L, Zhang L, Liu YH. [Cadmium induces apoptosis of mouse spermatocytes (GC-2 spd) by promoting mitochondrial fission]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:807-812. [PMID: 36510713 DOI: 10.3760/cma.j.cn121094-20210607-00280] [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: 12/15/2022]
Abstract
Objective: To study the underlying mechanism of cadmium-induced apoptosis of mouse spermatocytes (GC-2 spd) . Methods: In March 2021, GC-2 spd cells were exposed to different concentrations of CdCl(2) for 24 hours, namely 5 μmol/L CdCl(2) (low-dose) group and 10 μmol/L CdCl(2) (high-dose) group, and unexposed GC-2 spd cells were used as control group. Mitochondrial morphology was observed in the cells stained with Mito-Track Red CMXRos fluorescent probes by confocal microscopy and the mitochrondrial membrane potential was measured by flow cytometry with JC-1 fluorescent probes. Mitochrondrial proteins, cytosolic proteins and total cellular proteins of GC-2 spd cells were extracted using cell mitochondria isolation kit and RIPA buffer, respectively. The expression of mitochondrial homeostasis regulatory proteins (FIS1 and OPA1), and apoptosis-related proteins (Cytochrome c and cleaved Caspase-3) were examined by Western blot. Results: Compared with the cells in the control group, the relative ratio of JC-1 red/green fluorescence signal in the cells of the low-dose and high-dose CdCl(2) groups decreased significantly (0.740±0.071, 0.570±0.028), with a statistically significant difference (P=0.017, 0.004) ; The morphology of mitochondria changed from long tube to point, and the proportion of cells containing point mitochondria increased significantly (45.1%±3.7% and 25.7%±4.9%), the difference was statistically significant (P=0.005, 0.001) ; The relative expression level of mitochondrial FIS1 in cells of low and high dose CdCl(2) groups was significantly higher (1.271±0.120, 1.693±0.155), the difference was statistically significant (P=0.046, 0.000) ; The relative expression level of OPA1 decreased significantly (0.838±0.050, 0.682±0.040), and the difference was statistically significant (P=0.049, 0.001). Compared with the control group, the relative expression level of cytochrome c protein in the cytoplasm of cells in the low dose group of CdCl(2) was not significantly increased (1.249±0.151), and the difference was not statistically significant (P=0.075). However, the relative expression level in the cytoplasm of cells in the high dose group of CdCl(2) was significantly increased (2.355±0.110), and the difference was statistically significant (P=0.000) ; The relative expression level of Cytochrome c in mitochondria of low and high dose CdCl(2) groups decreased significantly (0.681±0.043, 0.619±0.114), with a statistically significant difference (P=0.004, 0.001) ; Moreover, the level of cleaved Caspase-3 protein in cells gradually increased (5.486±0.544, 11.493±1.739), the difference was statistically significant (P=0.004, 0.000) . Conclusion: Cadmium induced cleaved Caspase-3 mediated apoptosis of GC-2 spd cells via promoting mitochrondrial fission and the release of Cytochrome c from the mitochrondria to the cytosol.
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Affiliation(s)
- D Y Huang
- Department of Environmental Health and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
| | - L Ma
- Department of Environmental Health and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
| | - L L Lyu
- Department of Environmental Health and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
| | - L Hu
- Department of Environmental Health and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
| | - L Zhang
- Department of Environmental Health and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Y H Liu
- Department of Environmental Health and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
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Gu Y, Wang N, Shang H, Yu F, Hu L. Investigations on Grating-Enhanced Waveguides for Wide-Angle Light Couplings. Nanomaterials (Basel) 2022; 12:3991. [PMID: 36432276 PMCID: PMC9698350 DOI: 10.3390/nano12223991] [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] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/03/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
As a universal physical scheme, effective light couplings to waveguides favor numerous applications. However, the low coupling efficiency at wide angles prohibits this fundamental functionality and thus lowers the performance levels of photonic systems. As previously found, the transmission gratings patterned on waveguide facets could significantly improve the large-angle-inputted efficiency to the order of 10-1. Here, we continue this study with a focus on a common scenario, i.e., a grating-modified waveguide excited by the Gaussian beam. A simplified 2D theoretical model is firstly introduced, proving that the efficiency lineshape could be well flattened by elaborately arranged diffractive gratings. For demonstration, subsequent explorations for proper grating geometries were conducted, and four structural configurations were selected for later full-wave numerical simulations. The last comparison studies showcase that the analytical method approximates the finite element method-based modelings. Both methods highlight grating-empowered coupling efficiencies, being 2.5 bigger than the counterparts of the previously reported seven-ring structure. All in all, our research provides instructions to simulate grating effects on the waveguide's light-gathering abilities. Together with algorithm-designed coupling structures, it would be of great interest to further benefit real applications, such as bioanalytical instrumentation and quantum photon probes.
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Affiliation(s)
- Yitong Gu
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, No.1, Sub-Lane Xiangshan, Xihu District, Hangzhou 310024, China
- Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Ning Wang
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, No.1, Sub-Lane Xiangshan, Xihu District, Hangzhou 310024, China
- Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province, No.1, Sub-Lane Xiangshan, Xihu District, Hangzhou 310024, China
- Taiji Laboratory for Gravitational Wave Universe, No.1, Sub-Lane Xiangshan, Xihu District, Hangzhou 310024, China
| | - Haorui Shang
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, No.1, Sub-Lane Xiangshan, Xihu District, Hangzhou 310024, China
- Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Fei Yu
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, No.1, Sub-Lane Xiangshan, Xihu District, Hangzhou 310024, China
- Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Lili Hu
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, No.1, Sub-Lane Xiangshan, Xihu District, Hangzhou 310024, China
- Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
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Li F, Mei F, JieHui L, Du Y, Hu L, Tian X, Hong W, Liu M, Lu B. Study on the Effect of Different Bladder Filling Volume on Target Area and Organs at Risk during Three-Dimensional Brachytherapy for Postoperative Early Cervical Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1247] [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: 10/31/2022]
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JieHui L, Qin Y, Li F, Hong W, Xu C, Mei F, Du Y, Hu L, Tian X, Mao W, Mu J, Yin S, Li M, Lu B. Application of 3D Printed Multi-Channel Vaginal Cylinder for Vaginal Brachytherapy in the Cervical Cancer Invading the Middle and Lower Thirds of Vagina. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1240] [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: 10/31/2022]
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Yang K, Ci S, Zhang J, Lu C, Zhang Q, Wu Q, Hu L, Gao J, Li D, Shan D, Li Y, Li L, Zhao L, Agnihotri S, Qian X, Shi Y, Zhang N, You Y, Wang X, Rich J. Targeting Nuclear Pore Complex to Radiosensitize Glioblastoma Stem Cells. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2137] [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: 10/31/2022]
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JieHui L, Yin S, Li F, Zhou Y, Mao W, Mei F, Hu L, Du Y, Tian X, Hong W, Mu J, Qin Y, Li M, Lu B. Comparison of Hematotoxicity of Pegylated Recombinant Human Granulocyte Colony-Stimulating Factor (PEG-rhG-CSF) Combined with Dual-Agent Concurrent Chemoradiotherapy and Cisplatin Concurrent Chemoradiotherapy for Locally Advanced Cervical Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1239] [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: 10/31/2022]
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