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Zhou Z, Hua Q, Wen C, Qian W, Su J, Yang M, Lei M. Effect of Patellar Morphology on the Risk of Osteochondral Fracture after Patellar Dislocation: A Cross-sectional Study. Orthop Surg 2024; 16:1089-1100. [PMID: 38561949 PMCID: PMC11062850 DOI: 10.1111/os.14036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 02/07/2024] [Accepted: 02/25/2024] [Indexed: 04/04/2024] Open
Abstract
OBJECTIVE The risk of osteochondral fracture (OCF) after patellar dislocation has been shown to be related to patellofemoral anatomy, but its relationship to patellar morphology remains unknown. The aim of this study was to investigate the associations between patellar morphology and the risk of OCF after patellar dislocation. METHODS A total of 140 patients with patellar dislocation between January 2018 and June 2023 were enrolled in this study and divided into two groups. Sixty-five patellar dislocation patients with OCF were included in the OCF group, while 75 patellar dislocation patients without OCF were included in the non-OCF group. Computed tomography was used to compare measurements of patellar morphology including Wiberg classification, patellar width and thickness, Wiberg angle, Wiberg index, facet ratio, lateral patellar facet angle, and patellar tilt angle. A logistic regression model was performed to evaluate the correlations between patellar morphology and the risk of OCF after patellar dislocation. Receiver operating characteristic curves were used to calculate the area under the curve (AUC) and determine the diagnostic values of patellar morphology for OCF after patellar dislocation. Subgroup analyses for gender and age were conducted to compare the differences in patellar morphology of PD patients. RESULTS Wiberg angle was significantly lower in the OCF group (p = 0.017), while Wiberg index (p = 0.002) and facet ratio (p = 0.023) were significantly higher in the OCF group. According to the results of logistic regression analysis, Wiberg angle (odds ratio [OR] = 0.96, p = 0.022) and Wiberg index (OR = 1.105, p = 0.032) were the final relevant factors for the occurrence of OCF after patellar dislocation. The AUC was 0.622 (95% confidence interval [CI]: 0.529-0.714) for Wiberg angle, 0.65 (95% CI: 0.558-0.742) for Wiberg index, and 0.702 (95% CI: 0.615-0.788) for the combination of Wiberg angle plus Wiberg index. CONCLUSION Wiberg angle and Wiberg index were independent risk factors for the occurrence of osteochondral fracture after patellar dislocation. Moreover, Wiberg angle, Wiberg index, and the combination of Wiberg angle plus Wiberg index had good predictive diagnostic value for the occurrence of OCF after patellar dislocation.
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Affiliation(s)
- Zirui Zhou
- College of Sports Medicine and HealthChengdu Sport UniversityChengduChina
| | - Qiang Hua
- Department of Sports Injury, Affiliated Sports Hospital of Chengdu Sport UniversityChengdu Sport UniversityChengduChina
| | - Chenghong Wen
- Department of Sports Injury, Affiliated Sports Hospital of Chengdu Sport UniversityChengdu Sport UniversityChengduChina
| | - Wenduo Qian
- Department of Sports Injury, Affiliated Sports Hospital of Chengdu Sport UniversityChengdu Sport UniversityChengduChina
| | - Jide Su
- Department of Sports Injury, Affiliated Sports Hospital of Chengdu Sport UniversityChengdu Sport UniversityChengduChina
| | - Min Yang
- Department of Sports Injury, Affiliated Sports Hospital of Chengdu Sport UniversityChengdu Sport UniversityChengduChina
| | - Mingming Lei
- Department of Sports Injury, Affiliated Sports Hospital of Chengdu Sport UniversityChengdu Sport UniversityChengduChina
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Chen R, Qin Y, Du J, Liu J, Dai S, Lei M, Zhu H. Circadian clock gene BMAL1 regulates STAR expression in goose ovarian preovulatory granulosa cells. Poult Sci 2023; 102:103159. [PMID: 37871489 PMCID: PMC10598734 DOI: 10.1016/j.psj.2023.103159] [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: 07/10/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/25/2023] Open
Abstract
The ovarian circadian clock plays a regulatory role in the avian ovulation-oviposition cycle. However, little is known regarding the ovarian circadian clock of geese. In this study, we investigated rhythmic changes in clock genes over a 48-h period and identified potential clock-controlled genes involved in progesterone synthesis in goose ovarian preovulatory granulosa cells. The results showed that BMAL1, CRY1, and CRY2, as well as 4 genes (LHR, STAR, CYP11A1, and HSD3B) involved in progesterone synthesis exhibited rhythmic expression patterns in goose ovarian preovulatory granulosa cells over a 48-h period. Knockdown of BMAL1 decreased the progesterone concentration and downregulated STAR mRNA and protein levels in goose ovarian preovulatory granulosa cells. Overexpression of BMAL1 increased the progesterone concentration and upregulated the STAR mRNA level in goose ovarian preovulatory granulosa cells. Moreover, we demonstrated that the BMAL1/CLOCK complex activated the transcription of goose STAR gene by binding to an E-box motif. These results suggest that the circadian clock is involved in the regulation of progesterone synthesis in goose ovarian preovulatory granulosa cells by orchestrating the transcription of steroidogenesis-related genes.
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Affiliation(s)
- Rong Chen
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Nanjing, China; Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Yifei Qin
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Nanjing, China; Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Jie Du
- Animal Husbandry and Veterinary College, Jiangsu Vocational College of Agriculture and Forestry, Jurong, Jiangsu, China
| | - Jie Liu
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Nanjing, China; Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Shudi Dai
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Nanjing, China; Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Mingming Lei
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Nanjing, China; Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Huanxi Zhu
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Nanjing, China; Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China.
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Liu J, Dai S, Dai Z, Feng Y, Lei M, Chen R, Zhu H. Transcriptome Profiling of Goose Ovarian Follicle Granulosa Cells Reveals Key Regulatory Networks for Follicle Selection. Animals (Basel) 2023; 13:2132. [PMID: 37443931 DOI: 10.3390/ani13132132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/20/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
The selection of follicles determines the reproductive performance of birds, but the process of follicle selection in geese is still elusive. This study focuses on Yangzhou geese during the egg-laying period and divides the follicular development process into three stages: small follicle development, follicle selection, and follicle maturation. Transcriptome sequencing was performed on granulosa cells from large white follicles, small yellow follicles, and F5 and F4 follicles. In addition, we selected the transcripts that remained unchanged during the development and maturation of small follicles but significantly changed during the follicular selection stage as the transcript collection that plays an important role in the follicular selection process. Then, we performed functional analysis on these transcripts and constructed a ceRNA network. The results showed that during the follicular selection stage, the number of differentially expressed mRNAs, miRNAs, and lncRNAs was the highest. In addition, miR-222-3p, miR-2954-3p, miR-126-5p, miR-2478, and miR-425-5p are potential key core regulatory molecules in the selection stage of goose follicles. These results can provide a reference for a better understanding of the basic mechanisms of the goose follicle selection process and potential targets for the precise regulation of goose egg production performance.
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Affiliation(s)
- Jie Liu
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Shudi Dai
- School of Life Science, Jiangsu University, Zhenjiang 212000, China
| | - Zichun Dai
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Yuyan Feng
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingming Lei
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Rong Chen
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Huanxi Zhu
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
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De Felice F, Humbert-Vidan L, Lei M, King A, Guerrero Urbano T. Dynamic nomogram for long-term survival in patients with locally advanced oropharyngeal cancer after (chemo)radiotherapy. Eur Arch Otorhinolaryngol 2023; 280:1955-1961. [PMID: 36427081 DOI: 10.1007/s00405-022-07757-1] [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: 08/27/2022] [Accepted: 11/19/2022] [Indexed: 11/27/2022]
Abstract
PURPOSE This study aimed to establish a nomogram for predicting overall survival (OS) in oropharyngeal cancer patients treated with curative (chemo)radiotherapy. MATERIALS AND METHODS The dynamic nomogram was constructed on 273 patients with oropharyngeal squamous cell carcinoma treated in a Tertiary Head and Neck Cancer Unit. The clinical features that were previously reported to be associated with OS were analyzed. The performance of the nomogram was assessed using concordance index (C-index) and calibration curves. RESULTS The nomogram incorporated three explanatory variables derived from a decision tree approach including HPV status, N classification according to 8th edition TNM and early response to (chemo)radiotherapy. The nomogram was capable to predict OS with a validation C-index of 0.768. The proposed stratification in risk groups allowed significant distinction between Kaplan-Meier curves for OS outcome (p < 0.0001). CONCLUSIONS The nomogram provided an accurate evaluation of OS for oropharyngeal cancer patients treated with curative (chemo)radiotherapy.
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Affiliation(s)
- Francesca De Felice
- Department of Clinical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, UK. .,Department of Radiotherapy, Policlinico Umberto I, "Sapienza" University of Rome, Viale Regina Elena 326, 00161, Rome, Italy.
| | - L Humbert-Vidan
- Department of Medical Physics, Guy's and St Thomas' NHS Foundation Trust, London, UK.,School of Cancer and Pharmaceutical Sciences, Comprehensive Cancer Centre, King's College London, London, UK
| | - M Lei
- Department of Clinical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - A King
- Department of Biomedical Engineering, King's College London, London, UK
| | - T Guerrero Urbano
- Department of Clinical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, UK
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Adjogatse D, Petkar I, Reis Ferreira M, Kong A, Lei M, Thomas C, Barrington SF, Dudau C, Touska P, Guerrero Urbano T, Connor SEJ. The Impact of Interactive MRI-Based Radiologist Review on Radiotherapy Target Volume Delineation in Head and Neck Cancer. AJNR Am J Neuroradiol 2023; 44:192-198. [PMID: 36702503 PMCID: PMC9891322 DOI: 10.3174/ajnr.a7773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 12/31/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND AND PURPOSE Peer review of head and neck cancer radiation therapy target volumes by radiologists was introduced in our center to optimize target volume delineation. Our aim was to assess the impact of MR imaging-based radiologist peer review of head and neck radiation therapy gross tumor and nodal volumes, through qualitative and quantitative analysis. MATERIALS AND METHODS Cases undergoing radical radiation therapy with a coregistered MR imaging, between April 2019 and March 2020, were reviewed. The frequency and nature of volume changes were documented, with major changes classified as per the guidance of The Royal College of Radiologists. Volumetric alignment was assessed using the Dice similarity coefficient, Jaccard index, and Hausdorff distance. RESULTS Fifty cases were reviewed between April 2019 and March 2020. The median age was 59 years (range, 29-83 years), and 72% were men. Seventy-six percent of gross tumor volumes and 41.5% of gross nodal volumes were altered, with 54.8% of gross tumor volume and 66.6% of gross nodal volume alterations classified as "major." Undercontouring of soft-tissue involvement and unidentified lymph nodes were predominant reasons for change. Radiologist review significantly altered the size of both the gross tumor volume (P = .034) and clinical target tumor volume (P = .003), but not gross nodal volume or clinical target nodal volume. The median conformity and surface distance metrics were the following: gross tumor volume Dice similarity coefficient = 0.93 (range, 0.82-0.96), Jaccard index = 0.87 (range, 0.7-0.94), Hausdorff distance = 7.45 mm (range, 5.6-11.7 mm); and gross nodular tumor volume Dice similarity coefficient = 0.95 (0.91-0.97), Jaccard index = 0.91 (0.83-0.95), and Hausdorff distance = 20.7 mm (range, 12.6-41.6). Conformity improved on gross tumor volume-to-clinical target tumor volume expansion (Dice similarity coefficient = 0.93 versus 0.95, P = .003). CONCLUSIONS MR imaging-based radiologist review resulted in major changes to most radiotherapy target volumes and significant changes in volume size of both gross tumor volume and clinical target tumor volume, suggesting that this is a fundamental step in the radiotherapy workflow of patients with head and neck cancer.
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Affiliation(s)
- D Adjogatse
- From the Departments of Oncology (D.A., I.P., M.R.F., A.K., M.L., T.G.U.)
- School of Biomedical Engineering and Imaging Sciences (D.A., C.T., S.E.J.C.)
| | - I Petkar
- From the Departments of Oncology (D.A., I.P., M.R.F., A.K., M.L., T.G.U.)
| | - M Reis Ferreira
- From the Departments of Oncology (D.A., I.P., M.R.F., A.K., M.L., T.G.U.)
| | - A Kong
- From the Departments of Oncology (D.A., I.P., M.R.F., A.K., M.L., T.G.U.)
| | - M Lei
- From the Departments of Oncology (D.A., I.P., M.R.F., A.K., M.L., T.G.U.)
| | - C Thomas
- Medical Physics (C.T.)
- School of Biomedical Engineering and Imaging Sciences (D.A., C.T., S.E.J.C.)
| | - S F Barrington
- King's College London and Guy's and St Thomas' PET Centre (S.F.B.), School of Biomedical Engineering and Imaging Sciences, King's College London, King's Health Partners, London, UK
| | - C Dudau
- Radiology (C.D., P.T., S.E.J.C.), Guy's and St Thomas' National Health Service Foundation Trust, London, UK
- Department of Neurororadiology (C.D., S.E.J.C.), King's College Hospital, London, UK
| | - P Touska
- Radiology (C.D., P.T., S.E.J.C.), Guy's and St Thomas' National Health Service Foundation Trust, London, UK
| | - T Guerrero Urbano
- From the Departments of Oncology (D.A., I.P., M.R.F., A.K., M.L., T.G.U.)
- Faculty of Dentistry, Oral and Craniofacial Sciences (T.G.U.), King's College London, London, UK
| | - S E J Connor
- Radiology (C.D., P.T., S.E.J.C.), Guy's and St Thomas' National Health Service Foundation Trust, London, UK
- School of Biomedical Engineering and Imaging Sciences (D.A., C.T., S.E.J.C.)
- Department of Neurororadiology (C.D., S.E.J.C.), King's College Hospital, London, UK
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Feng L, Zheng Y, Liu Y, Zhao Y, Lei M, Li Z, Fu S. Hair Zinc and Chromium Levels Were Associated with a Reduced Likelihood of Age Related Cognitive Decline in Centenarians and Oldest-Old Adults. J Nutr Health Aging 2023; 27:1012-1017. [PMID: 37997723 DOI: 10.1007/s12603-023-2008-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 09/27/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND Cognitive function has inevitable decline with advancing age in nature, and age-related cognitive decline (ARCD) is of increasing concern to aging population. Scarce study has involved the associations between hair trace elements and ARCD in older adults, especially in centenarians and oldest-old adults. This study was to investigate the associations between hair trace elements and ARCD in centenarians and oldest-old adults. METHODS Based on the household registration information of centenarians and oldest-old adults provided by the Civil Affairs Department of Hainan Province, China, the investigators conducted a one-to-one household survey among centenarians (≥100 years old) and oldest-old adults (80-99 years old). All 50 centenarians had a median age of 103 years and females accounted for 68.0%. All 73 oldest-old adults aged 80-99 years had a median age of 90 years and females accounted for 82.2%. Basic information were obtained with questionnaire interview, physical examination, biological test and hair collection by pre-trained local doctors and nurses. An inductively coupled plasma mass spectrometer was used to measure hair trace elements. All data in this study comes from China. Age, sex, body mass index, systolic blood pressure, diastolic blood pressure, smoking, drinking, hemoglobin, albumin, fasting blood pressure, zinc, chromium, copper, selenium, iron, manganese, strontium, lead, magnesium, potassium, and barium were simultaneously included in multivariate Logistic regression analysis. One adjusted model was done with all hair trace elements together. RESULTS Zinc and chromium levels were significantly lower in participants with ARCD than those without ARCD (P < 0.05 for all). Multivariate Logistic regression analysis indicated that zinc [odds ratio (OR): 0.988, 95%confidence interval (95%CI): 0.977-0.999] and chromium (OR: 0.051, 95%CI: 0.004-0.705) were associated with a reduced likelihood of ARCD (P < 0.05 for all). CONCLUSIONS Hair zinc and chromium levels were associated with a reduced likelihood of ARCD in centenarians and oldest-old adults. Further studies are necessary to verify if zinc and chromium supplementation has the potential to improve cognitive function and prevent ARCD development.
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Affiliation(s)
- L Feng
- Shihui Fu, Department of Cardiology, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, China. E-mail: ; Zhirui Li, Department of Orthopedics, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, China. E-mail: ; Mingxing Lei, Chinese People's Liberation Army Medical School, Beijing, China. E-mail: ; Yali Zhao, Central Laboratory, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, China. E-mail:
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Pascal L, Guerrero Urbano T, Petkar I, Reis Ferreira M, Kong A, Van Hemelrijck M, Lei M. Assessment of Optimal Time Points for Collection of Patient Reported Outcome Measures for Patients Undergoing Radical Radiotherapy for Head and Neck Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Dunton J, Lord R, Lee K, Doughty C, Bogotto A, O'Neill N, Kong A, Reis Ferreira M, Guerrero Urbano T, Petkar I, Lei M. Adherence to Swallow Exercises during (Chemo)Radiotherapy for Head and Neck Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1700] [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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Adjogatse D, Petkar I, Ferreira MR, Kong A, Lei M, Thomas C, Dudau C, Touska P, Barrington S, Urbano TG, Connor S. The Impact of Real-Time MRI Radiology-Based Peer Review on Head and Neck Radiotherapy Target Volume Delineation. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Liu J, Zhao X, Dai Z, Yang P, Chen R, Guo B, Lei M, Shi Z. A Possible Mechanism for Double-Yolked Eggs in the Early Stage of Egg-Laying in Zhedong White Goose-Function of IGF1 and LHR Signaling. Animals (Basel) 2022; 12:2964. [PMID: 36359088 PMCID: PMC9654830 DOI: 10.3390/ani12212964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/14/2022] [Accepted: 10/26/2022] [Indexed: 05/06/2024] Open
Abstract
The cause of double-yolk (DY) egg production in birds is unclear, but it is related to body weight and adiposity. We explored the causes of the high proportion (up to 26%) of DY eggs in the first clutch of Zhedong white geese. We recorded the egg production of Zhedong white geese during the first egg-laying cycle and counted the proportion of DY eggs. We found that 30% of geese had 3 sets of double or triple follicles of the same diameter in the abdomen, which was close to the DY egg rate. In addition, the mRNA expression levels of the steroidogenic acute regulatory protein (StAR) and luteinizing hormone receptor (LHR) genes in granulosa cells were similar within the same set of follicles. Furthermore, the IGF1 concentration in geese that had at least 3 sets of follicles of the same diameter was significantly higher than that in birds with 0-1 set of follicles of the same diameter. Thus, we proposed that, in the first egg-laying stage of geese, high plasma concentrations of IGF1 stimulate the development of pre-hierarchal follicles and cause more than one follicle to be selected at the same time, mature at the same rate under the same gonadotrophin milieu, and ovulate at the same time to produce DY eggs.
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Affiliation(s)
- Jie Liu
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Xingfei Zhao
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Zichun Dai
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Pengxia Yang
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Rong Chen
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Binbin Guo
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Mingming Lei
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Zhendan Shi
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
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Liu J, Dai S, Shao X, Wei C, Dai Z, Yang P, Lei M, Chen R, Zhu H. Spexin mRNA profile and its response to different photoperiods in Chinese Yangzhou geese (Anas cygnoides). Front Vet Sci 2022; 9:961431. [PMID: 36118333 PMCID: PMC9479540 DOI: 10.3389/fvets.2022.961431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 07/29/2022] [Indexed: 11/14/2022] Open
Abstract
Spexin (SPX, NPQ), a novel neuropeptide composed of 14 amino acid residues, is evolutionarily conserved among different species. Spexin has been suggested to have pleiotropic functions in mammals. However, reports on spexin in birds are limited. To clarify the role of spexin in goose reproduction, the spexin gene was cloned and analyzed. Analysis of tissue distribution by RT-PCR showed that the expression of spexin and its two receptors was widespread. During the long photoperiod, the expression levels of spexin in the pituitary and hypothalamus and of GALR2/3 in the pituitary decreased, and the GnRH, LHβ, and FSHβ expression levels increased significantly. This suggests that a long photoperiod regulates reproductive activities by activating the gonadotrope-axis, which is modulated by decreased spexin levels.
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Affiliation(s)
- Jie Liu
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing, China
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Shudi Dai
- School of Life Science, Jiangsu University, Zhenjiang, China
| | - Xibing Shao
- Anhui Tianzhi-jiao Goose Industry Co., Ltd., Chuzhou, China
| | - Chuankun Wei
- Anhui Tianzhi-jiao Goose Industry Co., Ltd., Chuzhou, China
| | - Zichun Dai
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing, China
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Pengxia Yang
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing, China
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Mingming Lei
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing, China
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Rong Chen
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing, China
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Huanxi Zhu
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing, China
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
- *Correspondence: Huanxi Zhu
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Cotton A, Lavender V, Lei M. CN5 Barriers to digital health in patients with head and neck cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Dean L, Oakley C, Guerrero Urbano T, Lei M. CN78 Initiating a personalised follow-up (PFU) programme for patients with head and neck cancer (HNC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Yu D, Chen W, Zhang J, Wei L, Qin J, Lei M, Tang H, Wang Y, Xue S, Dong J, Chen Y, Xie L, Di H. Effects of weight loss on bone turnover, inflammatory cytokines, and adipokines in Chinese overweight and obese adults. J Endocrinol Invest 2022; 45:1757-1767. [PMID: 35635643 PMCID: PMC9360139 DOI: 10.1007/s40618-022-01815-5] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/28/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE Plenty of studies have examined the long term effect of weight loss on bone mineral density. This study aimed to explore the effects of 10% weight loss on early changes in bone metabolism as well as the possible influencing factors. METHODS Overweight and obese outpatients (BMI > 24.0 kg/m2) were recruited from the nutrition clinic and followed a calorie-restricted, high-protein, low-carbohydrate diet program. Dietary intake, body composition, serum procollagen type I N-propeptide (PINP), β-Crosslaps, PTH, 25(OH) VitD, a series of inflammatory cytokines and adipokines were measured for the participants before starting to lose weight and after 10% weight loss (NCT04207879). RESULTS A total of 75 participants were enrolled and 37 participants achieved a weight loss of at least 10%. It was found that PINP decreased (p = 0.000) and the β-Crosslaps increased (p = 0.035) in female participants. Decreases in PTH (p = 0.001), serum IL-2 (p = 0.013), leptin (p = 0.001) and increases in 25(OH) VitD (p = 0.001), serum ghrelin (p = 0.033) were found in 37 participants after 10% of their weight had been lost. Change in PINP was detected to be significantly associated with change in lean body mass (r = 0.418, p = 0.012) and change in serum ghrelin(r = - 0.374, p = 0.023). CONCLUSIONS Bone formation was suppressed and bone absorption was increased in female subjects after a 10% weight loss. Bone turnover was found to be associated with lean body mass and affected by the circulating ghrelin level.
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Affiliation(s)
- D Yu
- Department of Nutrition, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - W Chen
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - J Zhang
- Clinical Biochemistry Lab, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - L Wei
- Department of Nuclear Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - J Qin
- The Biobank, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - M Lei
- Department of Nutrition, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - H Tang
- Department of Nutrition, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Y Wang
- Department of Nutrition, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - S Xue
- Department of Nutrition, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - J Dong
- Joint Department, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Y Chen
- The Graduate School, Hebei Medical University, Shijiazhuang, China
| | - L Xie
- School of Chemical Engineering, Shijiazhuang University, Shijiazhuang, China.
| | - H Di
- Department of Nutrition, The Third Hospital of Hebei Medical University, Shijiazhuang, China.
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Yan L, Hu M, Gu L, Lei M, Chen Z, Zhu H, Chen R. Effect of Heat Stress on Egg Production, Steroid Hormone Synthesis, and Related Gene Expression in Chicken Preovulatory Follicular Granulosa Cells. Animals (Basel) 2022; 12:ani12111467. [PMID: 35681931 PMCID: PMC9179568 DOI: 10.3390/ani12111467] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/01/2022] [Accepted: 06/04/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary The debilitating effects of heat stress on poultry production have been well documented. Heat stress already results in severe economic loss worldwide. Regarding the decline in the reproductive performance of heat-stressed hens, the exact mechanisms involved are still unknown. The present study was conducted to elucidate the molecular mechanisms underlying heat-stress-induced abnormal egg production in laying hens. Our results confirmed that laying hens reared under heat stress had impaired laying performance. Follicular granulosa cells cultured in vitro are sensitive to the effects of heat stress, showing an increase in apoptosis and cellular ultrastructural changes. These effects appeared in the form of heat-stress-elevated progesterone, with the increased expression of steroidogenic acute regulatory protein, cytochrome P450 family 11 subfamily A member 1, and 3b-hydroxysteroid dehydrogenase, along with inhibited estradiol synthesis through the decreased expression of follicle-stimulating hormone receptor and the cytochrome P450 family 19 subfamily A member 1. Collectively, laying hens exposed to high temperatures showed damage to granulosa cells that brought about a decline in egg production. This study provides a molecular mechanism for the abnormal laying performance of hens subjected to heat stress, which may help when developing novel strategies to reverse the adverse impact. Abstract This study was conducted to elucidate the molecular mechanisms underlying heat stress (HS)-induced abnormal egg-laying in laying hens. Hy-Line brown laying hens were exposed to HS at 32 °C or maintained at 22 °C (control) for 14 days. In addition, granulosa cells (GCs) from preovulatory follicles were subjected to normal (37 °C) or high (41 °C or 43 °C) temperatures in vitro. Proliferation, apoptosis, and steroidogenesis were investigated, and the expression of estrogen and progesterone synthesis-related genes was detected. The results confirmed that laying hens reared under HS had impaired laying performance. HS inhibited proliferation, increased apoptosis, and altered the GC ultrastructure. HS also elevated progesterone secretion by increasing the expression of steroidogenic acute regulatory protein (StAR), cytochrome P450 family 11 subfamily A member 1 (CYP11A1), and 3b-hydroxysteroid dehydrogenase (3β-HSD). In addition, HS inhibited estrogen synthesis in GCs by decreasing the expression of the follicle-stimulating hormone receptor (FSHR) and cytochrome P450 family 19 subfamily A member 1 (CYP19A1). The upregulation of heat shock 70 kDa protein (HSP70) under HS was also observed. Collectively, laying hens exposed to high temperatures experienced damage to follicular GCs and steroidogenesis dysfunction, which reduced their laying performance. This study provides a molecular mechanism for the abnormal laying performance of hens subjected to HS.
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Affiliation(s)
- Leyan Yan
- Key Laboratory for Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (L.Y.); (M.H.); (M.L.); (Z.C.)
| | - Mengdie Hu
- Key Laboratory for Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (L.Y.); (M.H.); (M.L.); (Z.C.)
| | - Lihong Gu
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou 571100, China;
| | - Mingming Lei
- Key Laboratory for Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (L.Y.); (M.H.); (M.L.); (Z.C.)
| | - Zhe Chen
- Key Laboratory for Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (L.Y.); (M.H.); (M.L.); (Z.C.)
| | - Huanxi Zhu
- Key Laboratory for Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (L.Y.); (M.H.); (M.L.); (Z.C.)
- Correspondence: (H.Z.); (R.C.)
| | - Rong Chen
- Key Laboratory for Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (L.Y.); (M.H.); (M.L.); (Z.C.)
- Correspondence: (H.Z.); (R.C.)
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André T, Lonardi S, Wong K, Lenz HJ, Gelsomino F, Aglietta M, Morse M, Van Cutsem E, McDermott R, Hill A, Sawyer M, Hendlisz A, Neyns B, Abdullaev S, Memaj A, Lei M, Dixon M, Kopetz S, Overman M. Nivolumab + low-dose ipilimumab in previously treated patients with microsatellite instability-high/mismatch repair-deficient metastatic colorectal cancer: 4-year follow-up from CheckMate 142. Ann Oncol 2022; 33:1052-1060. [DOI: 10.1016/j.annonc.2022.06.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/16/2022] [Accepted: 06/17/2022] [Indexed: 11/30/2022] Open
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André T, Van Cutsem E, Elez E, Bennouna J, de la Fouchardière C, Yoshino T, Jensen L, Mendez G, Li J, Goekkurt E, Abdullaev S, Chen T, Lei M, Lonardi S. P-12 A phase 3 study of nivolumab (NIVO), NIVO + ipilimumab (IPI), or chemotherapy for microsatellite instability-high (MSI-H)/mismatch repair-deficient (dMMR) metastatic colorectal cancer (mCRC): CheckMate 8HW. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Chau I, Ajani J, Doki Y, Xu J, Wyrwicz L, Motoyama S, Ogata T, Kawakami H, Hsu C, Adenis A, El Hajbi F, Di Bartolomeo M, Braghiroli M, Holtved E, Blum Murphy M, Abdullaev S, Soleymani S, Lei M, Kato K, Kitagawa Y. O-3 Nivolumab (NIVO) plus chemotherapy (chemo) or ipilimumab (IPI) vs chemo as first-line treatment for advanced esophageal squamous cell carcinoma (ESCC): Expanded efficacy and safety analyses from CheckMate 648. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Lei M, Qu X, Dai Z, Chen R, Zhu H, Shi Z. Effects of Caponization on Growth Performance and Carcass Composition of Yangzhou Ganders. Animals (Basel) 2022; 12:ani12111364. [PMID: 35681829 PMCID: PMC9179501 DOI: 10.3390/ani12111364] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/18/2022] [Accepted: 05/23/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Goose meat is recognized as one of the healthiest foods. Goose capons are specially bred and consumed in several parts of China for their high-quality meat. However, the effects of caponization on goose growth and carcass traits have remained uninvestigated, and its molecular mechanisms remain unclear. In this research, caponization lowered testosterone and increased the total cholesterol and triglyceride concentrations in serum. Caponization increased live weights by promoting food intake and abdominal fat deposition, and improved meat quality by increasing intermuscular fat. Changes in the expression of these genes indicate that caponization increases the live weight mainly by increasing fat deposition rather than muscle growth. These results expand our understanding of the mechanisms of caponization on growth performance and fat deposition in ganders. Abstract In this study, we determined the effects of caponization on the growth performance and carcass traits of Yangzhou ganders. Fifty sham operated geese (the control group) and 80 caponized geese (the caponized group) were selected at 150 days of age and reared until 240 days of age. At 210 days of age, 30 geese from the caponized group were selected and fed with testosterone propionate (testosterone group). The results showed that caponization lowered testosterone and increased the total cholesterol and triglyceride concentrations in serum, live weights, average 15 day gains, and feed intake. Abdominal fat and intramuscular fat were significantly higher in the caponized geese than in the control at 240 days. Gene expression analysis showed that caponization promoted abdominal fat deposition and intermuscular fat content by upregulating the expression of adipogenic genes in the liver, adipose tissue, and muscle tissue. The high expression of SOCS3 in the hypothalamus, liver, and muscle of caponized geese suggests that caponization may lead to negative feedback regulation and leptin resistance. Changes in the expression of these genes, along with the downregulation of PAX3 in the breast muscle and MYOG in the leg muscles, indicate that caponization increases the live weight mainly by increasing fat deposition rather than muscle growth. These results expand our understanding of the mechanisms of caponization on growth performance and fat deposition in ganders.
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Affiliation(s)
- Mingming Lei
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (M.L.); (X.Q.); (Z.D.); (R.C.)
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Xiaolu Qu
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (M.L.); (X.Q.); (Z.D.); (R.C.)
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Zichun Dai
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (M.L.); (X.Q.); (Z.D.); (R.C.)
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Rong Chen
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (M.L.); (X.Q.); (Z.D.); (R.C.)
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Huanxi Zhu
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (M.L.); (X.Q.); (Z.D.); (R.C.)
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
- Correspondence: (H.Z.); (Z.S.); Tel.: +86-025-8439-0346 (H.Z.); +86-025-8439-0956 (Z.S.)
| | - Zhendan Shi
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (M.L.); (X.Q.); (Z.D.); (R.C.)
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
- Correspondence: (H.Z.); (Z.S.); Tel.: +86-025-8439-0346 (H.Z.); +86-025-8439-0956 (Z.S.)
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Moehler M, Ajani J, Kuzdzal J, Zander T, Van Cutsem E, Piessen G, Mendez G, Feliciano J, Motoyama S, Lièvre A, Uronis H, Elimova E, Grootscholten C, Geboes K, Zhang J, Soleymani S, Lei M, Kondo K, Cleary J, Kelly R. 1381P Adjuvant nivolumab in resected esophageal or gastroesophageal junction cancer (EC/GEJC) following neoadjuvant chemoradiotherapy (CRT): 14-month follow-up of CheckMate 577. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Dolly S, Russell B, Moss C, Tsotra E, Gousis C, Roca J, Sita-Lumsden A, Khan M, Josephs D, Zaki K, Smith D, Michalarea V, Kristeleit R, Enting D, Flanders L, Lei M, Sawyer E, Spicer J, Ross P, Montes A, Van Hemelrijick M. 1608P The impact of COVID-19 on the delivery of systemic anti-cancer treatment at Guy’s Cancer Centre. Ann Oncol 2021. [PMCID: PMC8454366 DOI: 10.1016/j.annonc.2021.08.1601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Janjigian Y, Ajani J, Moehler M, Garrido M, Gallardo C, Shen L, Yamaguchi K, Wyrwicz L, Skoczylas T, Bragagnoli A, Liu T, Tehfe M, Elimova E, Li M, Poulart V, Lei M, Kondo K, Shitara K. LBA7 Nivolumab (NIVO) plus chemotherapy (Chemo) or ipilimumab (IPI) vs chemo as first-line (1L) treatment for advanced gastric cancer/gastroesophageal junction cancer/esophageal adenocarcinoma (GC/GEJC/EAC): CheckMate 649 study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.2131] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Forster M, Mendes R, Guerrero Urbano T, Evans M, Lei M, Spanswick V, Miles E, Simões R, Wheeler G, Forsyth S, White L. 866P ORCA-2: A phase I study of olaparib in addition to cisplatin-based concurrent chemoradiotherapy for patients with high risk locally advanced (LA) squamous cell carcinoma of the head and neck (HNSCC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Guo B, Yan L, Lei M, Dai Z, Shi Z. Wider Angle Egg Turning during Incubation Enhances Yolk Utilization and Promotes Goose Embryo Development. Animals (Basel) 2021; 11:2485. [PMID: 34573451 PMCID: PMC8466811 DOI: 10.3390/ani11092485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/21/2021] [Accepted: 08/21/2021] [Indexed: 12/21/2022] Open
Abstract
We aimed to investigate how wide-angle turning of eggs during incubation affected yolk utilization and the associated molecular mechanism, along with improved goose embryonic development. In total, 1152 eggs (mean weight: 143.33 ± 5.43 g) were divided equally and incubated in two commercial incubators with tray turning angles adjusted differently, to either 50° or 70°. Following incubation under the standard temperature and humidity level, turning eggs by 70° increased embryonic days 22 (E22), embryo mass, gosling weight at hatching, and egg hatchability, but reduced E22 yolk mass compared with those after turning eggs by 50°. Lipidomic analyses of the yolk revealed that egg turning at 70° reduced the concentrations of 17 of 1132 detected total lipids, including diglycerides, triglycerides, and phospholipids. Furthermore, the 70° egg turning upregulated the expression of genes related to lipolysis and fat digestion enzymes, such as lipase, cathepsin B, and prosaposin, as well as apolipoprotein B, apolipoprotein A4, very low-density lipoprotein receptor, low-density lipoprotein receptor-related protein 2, and thrombospondin receptor, which are genes involved in lipid transportation. Thus, a 70° egg turning angle during incubation enhances yolk utilization through the upregulation of lipolysis and fat digestion-related gene expression, thereby promoting embryonic development and improving egg hatchability and gosling quality.
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Affiliation(s)
| | | | | | | | - Zhendan Shi
- Laboratory of Animal Improvement and Reproduction, Key Laboratory of Protected Agriculture Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (B.G.); (L.Y.); (M.L.); (Z.D.)
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Connor S, Sit C, Anjari M, Lei M, Guerrero-Urbano T, Szyszko T, Cook G, Bassett P, Goh V. The ability of post-chemoradiotherapy DWI ADC mean and 18F-FDG SUV max to predict treatment outcomes in head and neck cancer: impact of human papilloma virus oropharyngeal cancer status. J Cancer Res Clin Oncol 2021; 147:2323-2336. [PMID: 34159420 PMCID: PMC8236463 DOI: 10.1007/s00432-021-03662-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 05/10/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To evaluate the ability of post-chemo-radiotherapy (CRT) diffusion-weighted-MRI apparent diffusion coefficient (ADCmean) and 18F-FDG PET maximum standardized uptake value (SUVmax) to predict disease-free survival (DFS) in head and neck squamous cell carcinoma (HNSCC), and to determine whether this ability is influenced by human papillomavirus oropharyngeal cancer (HPV-OPC) status. METHODS This prospective cohort observational study included 65 participants (53 male, mean ± SD age 59.9 ± 7.9 years, 46 HPV-OPC) with stage III or IV HNSCC. Primary tumour and nodal ADCmean (pre-treatment, 6- and 12-weeks post-CRT) and SUVmax (12-weeks post-CRT) were measured. Variables were compared with 2-year DFS (independent t-test/Mann-Whitney test) and overall DFS (Cox regression), before and after accounting for HPV-OPC status. Variables were also compared between HPV-OPC and other HNSCC subgroups after stratifying for DFS. RESULTS Absolute post-CRT ADCmean values predicted 2-year DFS and overall DFS for all participants (p = 0.03/0.03, 6-week node; p = 0.02/0.03 12-week primary tumour) but not in the HPV-OPC subgroup. In participants with DFS, percentage interval changes in primary tumour ADCmean at 6- and 12-weeks were higher in HPV-OPC than other HNSCC (p = 0.01, 6 weeks; p = 0.005, 12 weeks). The 12-week post-CRT SUVmax did not predict DFS. CONCLUSION Absolute post-CRT ADCmean values predicted DFS in HNSCC but not in the HPV-OPC subgroup. Amongst participants with DFS, post-CRT percentage interval changes in primary tumour ADCmean were significantly higher in HPV-OPC than in other HNSCC. Knowledge of HPV-OPC status is crucial to the clinical utilisation of post-CRT DWI-MRI for the prediction of outcomes.
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Affiliation(s)
- S Connor
- School of Biomedical Engineering and Imaging Sciences, St Thomas' Hospital, King's College, London, SE1 7EH, UK.
- Department of Neuroradiology, Ruskin Wing, Kings College Hospital, Denmark Hill, London, SE5 9RS, UK.
- Department of Radiology, Guy's Hospital, 2nd Floor, Tower Wing, Great Maze Pond, London, SE1 9RT, UK.
| | - C Sit
- Department of Radiology, Guy's Hospital, 2nd Floor, Tower Wing, Great Maze Pond, London, SE1 9RT, UK
| | - M Anjari
- Department of Radiology, Guy's Hospital, 2nd Floor, Tower Wing, Great Maze Pond, London, SE1 9RT, UK
| | - M Lei
- Department of Oncology, Guy's Hospital, 2nd Floor, Tower Wing, Great Maze Pond, London, SE1 9RT, UK
| | - T Guerrero-Urbano
- Department of Oncology, Guy's Hospital, 2nd Floor, Tower Wing, Great Maze Pond, London, SE1 9RT, UK
| | - T Szyszko
- King's College London & Guy's and St. Thomas' PET Centre, London, SE1 7EH, UK
| | - G Cook
- School of Biomedical Engineering and Imaging Sciences, St Thomas' Hospital, King's College, London, SE1 7EH, UK
- King's College London & Guy's and St. Thomas' PET Centre, London, SE1 7EH, UK
| | - P Bassett
- Department of Oncology, Guy's Hospital, 2nd Floor, Tower Wing, Great Maze Pond, London, SE1 9RT, UK
| | - V Goh
- School of Biomedical Engineering and Imaging Sciences, St Thomas' Hospital, King's College, London, SE1 7EH, UK
- Department of Radiology, Guy's Hospital, 2nd Floor, Tower Wing, Great Maze Pond, London, SE1 9RT, UK
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Pascal L, Van Hemelrijck M, Guerrero Urbano T, Lei M. PO-1003 Implementation of the routine collection of PROMs for patients with Head and Neck cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07454-5] [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: 10/20/2022]
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De Felice F, Humbert-Vidan L, Lei M, King A, Guerrero Urbano T. PO-0971 Locally advanced oropharyngeal cancer: a dynamic nomogram. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07422-3] [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: 10/20/2022]
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Humbert-Vidan L, Patel V, Begum R, McGovern M, Eaton D, Kong A, Petkar I, Reis Ferreira M, Lei M, King A, Guerrero Urbano T. PH-0387 Mandible osteoradionecrosis: a dosimetric study. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07318-7] [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: 10/20/2022]
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Lei M, Wang Q, Liu B, Che Y. Two new sesquiterpenes from Sonchus oleraceus and inhibitory mechanism on murine haemangioendothelioma (EOMA) cell lines. Nat Prod Res 2021; 36:2814-2820. [PMID: 34039229 DOI: 10.1080/14786419.2021.1931186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Sonchus oleraceus is a kind of medicinal and edible plant which is widely distributed. In this study, two new sesquiterpenes 1 and 2 along with three known compounds 3-5 were isolated from Sonchus oleraceus by the methods of column chromatography. The structures of the two novel compounds were constructed on the basis of HR-MS and NMR spectra. Cytotoxicities of 1 and 2 were assayed on EOMA cell lines and 1 exhibited no inhibitory effect while 2 elicited moderate inhibitory effect on EOMA cells with IC50 value of 26.5 μM. Western Blot assay indicated that 2 could suppress EOMA cell proliferation by inducing apoptosis through Bax/caspase-3 pathway.
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Affiliation(s)
- Mingming Lei
- Department of Cardiovascular, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, P. R. China
| | - Qi Wang
- Department of Cardiovascular, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, P. R. China
| | - Bing Liu
- College of Pharmacy, Harbin University of Commerce, Harbin, P.R. China
| | - Yuqin Che
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, P. R. China
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Beck A, Due A, Birk C, Majgaard M, Lei M, Langsted S, Jensen T. An innovative rehabilitating meals-on-wheels service for frail old people - a controlled feasibility study. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Michaelidou A, Adjogatse D, Suh Y, Pike L, Thomas C, Woodley O, Rackely T, Palaniappan N, Jayaprakasam V, Sanchez-Nieto B, Evans M, Barrington S, Lei M, Guerrero Urbano T. 18F-FDG-PET in guided dose-painting with intensity modulated radiotherapy in oropharyngeal tumours: A phase I study (FiGaRO). Radiother Oncol 2020; 155:261-268. [PMID: 33161013 DOI: 10.1016/j.radonc.2020.10.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/25/2020] [Accepted: 10/28/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND PURPOSE The FiGaRO trial assessed the feasibility and safety of using an FDG-PET-based dose-painting technique to deliver a radiotherapy (RT) boostto the FDG-avid primary tumour in patients with locally advanced high and intermediate risk oropharyngeal cancer. MATERIALS AND METHOD Patients underwent a planning 18FDG-PET-CT scan, immobilised in the treatment position, after one cycle of induction chemotherapy. The volume of persistent FDG-avidity in the primary tumour was escalated to 71.5 Gy in30 fractions delivered using a simultaneous integrated boost Intensity Modulated RT (SIB-IMRT) technique. RT was delivered with concomitant Cisplatin following 2 cycles of induction chemotherapy. The primary outcome was the incidence of grade ≥ 3 late mucosal toxicity 12 months post-treatment, with an excess rate of >10% regarded as unacceptable. RESULTS Twenty-nine patients were included and twenty-four were treated between 2014 and 2018, in two UK centres. Median follow-up was 36 months (range 4-56 months). Pre-defined planning target volume objectives and organ at risk dose constraints were met in all cases. There were no incidents of acute grade 4 toxicity. There were 4 cases of grade ≥ 3 mucosal toxicity at 12 months post-treatment (19.1%). There were no cases of persistent mucosal ulceration at 12 months. Overall survival at 3-years was 87.5%, 92.9% for intermediate and 70.0% for high risk patients. CONCLUSION Late toxicity rates, although higher than anticipated, are comparable to contemporary published data for standard dose chemo-IMRT. Results suggest improved 3y survival rates for high risk patients. This approach merits further investigation. ClinicalTrials.gov Identifier: NCT02953197.
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Affiliation(s)
- A Michaelidou
- Department of Clinical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, UK; King's College London and Guy's and St Thomas' PET Centre, School of Biomedical Engineering and Imaging Sciences, King's College London, King's Health Partners, London, UK; Kent Oncology Centre, Maidstone and Tunbridge Wells NHS Trust, Kent, UK
| | - D Adjogatse
- Department of Clinical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, UK; King's College London and Guy's and St Thomas' PET Centre, School of Biomedical Engineering and Imaging Sciences, King's College London, King's Health Partners, London, UK
| | - Y Suh
- Department of Clinical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, UK; King's College London and Guy's and St Thomas' PET Centre, School of Biomedical Engineering and Imaging Sciences, King's College London, King's Health Partners, London, UK; Department of Clinical Oncology, Royal Marsden NHS Foundation Trust, London, UK
| | - L Pike
- King's College London and Guy's and St Thomas' PET Centre, School of Biomedical Engineering and Imaging Sciences, King's College London, King's Health Partners, London, UK
| | - C Thomas
- Department of Medical Physics, Guy's and St Thomas' NHS Foundation Trust, London, UK; King's College London and Guy's and St Thomas' PET Centre, School of Biomedical Engineering and Imaging Sciences, King's College London, King's Health Partners, London, UK
| | - O Woodley
- Medical Physics Department, Velindre University NHS Trust, Cardiff, UK
| | - T Rackely
- Department of Oncology, Velindre University NHS Trust, Cardiff, UK
| | - N Palaniappan
- Department of Oncology, Velindre University NHS Trust, Cardiff, UK
| | - V Jayaprakasam
- Wales Research and Diagnostic PET Imaging Centre, Cardiff, UK
| | - B Sanchez-Nieto
- Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - M Evans
- Department of Oncology, Velindre University NHS Trust, Cardiff, UK
| | - S Barrington
- King's College London and Guy's and St Thomas' PET Centre, School of Biomedical Engineering and Imaging Sciences, King's College London, King's Health Partners, London, UK
| | - M Lei
- Department of Clinical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - T Guerrero Urbano
- Department of Clinical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, UK.
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Sambasivan K, Michaelidou A, Ross G, Oakley R, Lyons A, Cascarini L, Fry A, Jeannon J, Ferreira MR, Lei M, Urbano TG. PO-0800: Outcomes of patients with locally advanced oral cavity SCC treated radically at Guys' Cancer Centre. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00817-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Dong K, Xu G, Lei M, Zhao S, Yao M. 995P CTNNB1 mutations in Chinese HCC patients and immune microenvironment related analysis. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Moehler M, Shitara K, Garrido M, Salman P, Shen L, Wyrwicz L, Yamaguchi K, Skoczylas T, Campos Bragagnoli A, Liu T, Schenker M, Yanez P, Tehfe M, Poulart V, Cullen D, Lei M, Kondo K, Li M, Ajani J, Janjigian Y. LBA6_PR Nivolumab (nivo) plus chemotherapy (chemo) versus chemo as first-line (1L) treatment for advanced gastric cancer/gastroesophageal junction cancer (GC/GEJC)/esophageal adenocarcinoma (EAC): First results of the CheckMate 649 study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2296] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Kelly R, Ajani J, Kuzdzal J, Zander T, Van Cutsem E, Piessen G, Mendez G, Feliciano J, Motoyama S, Lièvre A, Uronis H, Elimova E, Grootscholten C, Geboes K, Zhang J, Zhu L, Lei M, Kondo K, Cleary J, Moehler M. LBA9_PR Adjuvant nivolumab in resected esophageal or gastroesophageal junction cancer (EC/GEJC) following neoadjuvant chemoradiation therapy (CRT): First results of the CheckMate 577 study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2299] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Lei M, Chen R, Qin Q, Zhu H, Shi Z. Transcriptome analysis to unravel the gene expression profile of ovarian follicular development in Magang goose. J Reprod Dev 2020; 66:331-340. [PMID: 32281545 PMCID: PMC7470900 DOI: 10.1262/jrd.2019-110] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Magang geese exhibit a unique characteristic of follicular development, with eight largest orderly arranged pre-ovulatory follicles in the abdominal cavity. However, little is
known about the mechanisms underlying this follicular development. This study aimed to compare gene expression profiles of granulosa cells (GCs) at different stages of follicular
development and provide comprehensive insights into follicle selection and the mechanisms underlying the well-defined follicle hierarchy in Magang geese. GCs of large white
follicles (LWFs), small yellow follicles (SYFs), F8, F4, and F1 were used for RNA-seq analysis; 374, 1117, 791, and 593 genes were differentially expressed in stages LWFs to SYFs,
SYFs to F8, F8 to F4, and F4 to F1, respectively, suggesting that these genes contribute to follicle selection and development. Reliability of sequencing data was verified through
qPCR analysis of 24 genes. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathways revealed a complex mechanism that remodels the extracellular matrix and turnover of
extracellular matrix components in follicular development and ovulation and involves multiple pathway, such as focal adhesion, adherens junction, and extracellular matrix–receptor
interaction. Some unique characteristics were observed during the different follicular development stages. For instance, some differentially expressed genes were enriched in
progesterone-mediated oocyte maturation and steroid biosynthesis from stage SYFs to F8, whereas others were enriched in actin cytoskeleton regulation and vascular smooth muscle
contraction from stage F4 to F1. These findings enhance our current understanding of GC function and ovarian follicles during the key stages of follicular development.
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Affiliation(s)
- Mingming Lei
- Jiangsu Key Laboratory for Food Quality and Safety, State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Rong Chen
- Jiangsu Key Laboratory for Food Quality and Safety, State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Qingming Qin
- College of Husbandry and Veterinary, Xinyang Agriculture and Forestry University, Xinyang 464000, China
| | - Huanxi Zhu
- Jiangsu Key Laboratory for Food Quality and Safety, State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Zhendan Shi
- Jiangsu Key Laboratory for Food Quality and Safety, State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
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Zhou X, Lei M, Zhou D, Li G, Duan Z, Zhou S, Jin Y. Clinical factors affecting left ventricular end-diastolic pressure in patients with acute ST-segment elevation myocardial infarction. Ann Palliat Med 2020; 9:1834-1840. [PMID: 32279513 DOI: 10.21037/apm.2020.03.22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 02/27/2020] [Indexed: 11/06/2022]
Abstract
BACKGROUND An association between left ventricular end-diastolic pressure (LVEDP) and outcomes of ischemic heart diseases has been reported. The present study aimed to investigate the LVEDP patterns and the effecting factors in patients with acute ST-segment elevation myocardial infarction (STEMI). METHODS A total of 515 STEMI patients receiving immediate percutaneous coronary intervention (PCI) were divided into two groups according to their LVEDP before left ventricular angiography: LVEDP of 15 mmHg or less (group A, n=145) and LVEDP above 15 mmHg (group B, n=370). Blood samples were collected before and within 24 hours after PCI, and an ultrasonic cardiogram was conducted to measure left ventricular ejection fraction (EF%) and to evaluate ventricular structure changes. The narrowness of each artery was measured with coronary angiography. RESULTS In comparison with group A, patients in group B had a more infarction-related artery (IRA) descending branch and regional wall motion abnormality, a larger left atrial end-diastolic diameter (LAEDd) and a left ventricular end-diastolic diameter (LVEDd), a smaller EF%, a higher level of myocardial necrosis markers, and a higher heart failure rate. Furthermore, LVEDP level was found to be positively correlated with Gensini score, LAEDd, LVEDd, N-terminal pro b-type natriuretic peptide, troponin T, uric acid, creatine kinase (CK), CK myocardial band, low-density lipoprotein cholesterol and fasting blood glucose, and negatively correlated with glomerular filtration rate and EF%. CONCLUSIONS LVEDP elevation has a higher incidence of heart failure and a higher risk of death, which is associated with the criminal blood vessels.
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Affiliation(s)
- Xia Zhou
- Department of Cardiology, the 4th Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Mingming Lei
- Department of Cardiology, the 4th Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Donghui Zhou
- Department of Cardiology, the 4th Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Guoqing Li
- Department of Cardiology, the 4th Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Zhiying Duan
- Department of Cardiology, the 4th Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Shaobo Zhou
- Department of Cardiology, the 4th Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Yuanzhe Jin
- Department of Cardiology, the 4th Affiliated Hospital of China Medical University, Shenyang 110032, China.
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He S, Wen Q, O’Shea C, Mu-u-min R, Tan X, Ou X, Camelliti P, Pavlovic P, Lei M. A new method of transverse cardiac slicing and optical mapping of murine heart. J Mol Cell Cardiol 2020. [DOI: 10.1016/j.yjmcc.2019.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Potts KA, Stieglitz JT, Lei M, Van Deventer JA. Reporter system architecture affects measurements of noncanonical amino acid incorporation efficiency and fidelity. Mol Syst Des Eng 2020; 5:573-588. [PMID: 33791108 PMCID: PMC8009230 DOI: 10.1039/c9me00107g] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The ability to genetically encode noncanonical amino acids (ncAAs) within proteins supports a growing number of applications ranging from fundamental biological studies to enhancing the properties of biological therapeutics. Currently, our quantitative understanding of ncAA incorporation systems is confounded by the diverse set of characterization and analysis approaches used to quantify ncAA incorporation events. While several effective reporter systems support such measurements, it is not clear how quantitative results from different reporters relate to one another, or which details influence measurements most strongly. Here, we evaluate the quantitative performance of single-fluorescent protein reporters, dual-fluorescent protein reporters, and cell surface-displayed protein reporters of ncAA insertion in response to the TAG (amber) codon in yeast. While different reporters support varying levels of apparent readthrough efficiencies, flow cytometry-based evaluations with dual reporters yielded measurements exhibiting consistent quantitative trends and precision across all evaluated conditions. Further investigations of dual-fluorescent protein reporter architecture revealed that quantitative outputs are influenced by stop codon location and N- and C-terminal fluorescent protein identity. Both dual-fluorescent protein reporters and a "drop-in" version of yeast display support quantification of ncAA incorporation in several single-gene knockout strains, revealing strains that enhance ncAA incorporation efficiency without compromising fidelity. Our studies reveal critical details regarding reporter system performance in yeast and how to effectively deploy such reporters. These findings have substantial implications for how to engineer ncAA incorporation systems-and protein translation apparatuses-to better accommodate alternative genetic codes for expanding the chemical diversity of biosynthesized proteins.
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Affiliation(s)
- K A Potts
- Chemical and Biological Engineering Department, Tufts University, Medford, Massachusetts 02155, United States
| | - J T Stieglitz
- Chemical and Biological Engineering Department, Tufts University, Medford, Massachusetts 02155, United States
| | - M Lei
- Chemical and Biological Engineering Department, Tufts University, Medford, Massachusetts 02155, United States
| | - J A Van Deventer
- Chemical and Biological Engineering Department, Tufts University, Medford, Massachusetts 02155, United States
- Biomedical Engineering Department, Tufts University, Medford, Massachusetts 02155, United States
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Reed N, Glen H, Gerrard G, Good J, Lei M, Lyon AR, Strachan M, Wadsley J, Newbold K. Expert Consensus on the Management of Adverse Events During Treatment with Lenvatinib for Thyroid Cancer. Clin Oncol (R Coll Radiol) 2019; 32:e145-e153. [PMID: 31843241 DOI: 10.1016/j.clon.2019.11.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 07/09/2018] [Revised: 11/04/2019] [Accepted: 11/07/2019] [Indexed: 12/23/2022]
Abstract
AIMS Lenvatinib is an oral multi-kinase inhibitor approved for the treatment of adults with progressive, locally advanced or metastatic, differentiated thyroid carcinoma refractory to radioactive iodine. MATERIALS AND METHODS A literature review was undertaken to inform the development of consensus-based guidance for the routine management of adverse events associated with lenvatinib. PubMed was searched on 24 October 2017; the search terms were 'lenvatinib' and 'thyroid cancer'. RESULTS Hypertension, diarrhoea, weight loss, skin toxicities and cardiovascular adverse events were considered. For grade 1/2 diarrhoea, initial treatment should be loperamide with a 1-week treatment interruption if diarrhoea persists and dose reduction if diarrhoea recurs on reinitiation of lenvatinib. Blood pressure should be monitored daily in patients with pre-existing hypertension, otherwise from 1 week after the initiation of lenvatinib and weekly for the first 2 months. For patients with systolic blood pressure ≥135 mmHg to <160 mmHg or diastolic blood pressure ≥85 mmHg to <100 mmHg, lenvatinib should be continued but antihypertensive therapy initiated/intensified. For patients who remain hypertensive, a treatment break can be considered with lenvatinib reinitiated at a reduced dose once the patient's blood pressure has stabilised for at least 48 h. Weight loss of 10% of baseline body weight or the onset of anorexia should be managed with a 1-week treatment break; patients should maintain a healthy, active lifestyle. For patients with grade 2 proteinuria, lenvatinib may be continued, but an angiotensin II receptor blocker or angiotensin converting enzyme inhibitor should be commenced. For grade >3 proteinuria, lenvatinib should be interrupted until proteinuria returns to 1+. For chronic proteinuria, lenvatinib should be stopped. Skin toxicities should be managed with moisturisers or emollients and soap substitutes. CONCLUSIONS Prophylaxis, regular monitoring and symptomatic management with appropriate short treatment breaks and, for persistent adverse events, dose reductions, are recommended to enable patients to remain on the optimal dose regimen.
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Affiliation(s)
- N Reed
- Beatson West of Scotland Cancer Centre, Glasgow, UK.
| | - H Glen
- Beatson West of Scotland Cancer Centre, Glasgow, UK
| | | | - J Good
- QE Hospital, Birmingham, UK
| | - M Lei
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - A R Lyon
- Royal Brompton & Harefield NHS Foundation Trust and Imperial College London, London, UK
| | | | | | - K Newbold
- Royal Marsden NHS Foundation Trust, London, UK
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Zheng W, Liu C, Lei M, Han Y, Zhou X, Li C, Sun S, Ma X. Evaluation of common variants in the CNR2 gene and its interaction with abdominal obesity for osteoporosis susceptibility in Chinese post-menopausal females. Bone Joint Res 2019; 8:544-549. [PMID: 31832174 PMCID: PMC6888734 DOI: 10.1302/2046-3758.811.bjr-2018-0284.r1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objectives The objective of this study was to investigate the association of four single-nucleotide polymorphisms (SNPs) of the cannabinoid receptor 2 (CNR2) gene, gene-obesity interaction, and haplotype combination with osteoporosis (OP) susceptibility. Methods Chinese patients with OP were recruited between March 2011 and December 2015 from our hospital. In this study, a total of 1267 post-menopausal female patients (631 OP patients and 636 control patients) were selected. The mean age of all subjects was 69.2 years (sd 15.8). A generalized multifactor dimensionality reduction (GMDR) model and logistic regression model were used to examine the interaction between SNP and obesity on OP. For OP patient-control haplotype analyses, the SHEsis online haplotype analysis software (http://analysis.bio-x.cn/) was employed. Results The logistic regression model revealed that the C allele of rs2501431 and the G allele of rs3003336 were associated with increased OP risk, compared with those with wild genotype. However, no significant correlations were found when analyzing the association of rs4237 and rs2229579 with OP risk. The GMDR analysis suggested that the interaction model composed of two factors, rs3003336 and abdominal obesity (AO), was the best model with statistical significance (p-value from sign test (Psign) = 0.012), indicating a potential gene-environment interaction between rs3003336 and AO. Overall, the two-locus models had a cross-validation consistency of 10/10 and had a testing accuracy of 0.641. Abdominally obese subjects with the AG or GG genotype have the highest OP risk, compared with subjects with the AA genotype and normal waist circumference (WC) (odds ratio (OR) 2.23, 95% confidence interval (CI) 1.54 to 3.51). Haplotype analysis also indicated that the haplotype containing the rs3003336-G and rs2501431-C alleles was associated with a statistically increased OP risk. Conclusion Our results suggested that the C allele of rs2501431 and the G allele of rs3003336 of the CNR2 gene, interaction between rs3003336 and AO, and the haplotype containing the rs3003336-G and rs2501431-C alleles were all associated with increased OP risk. Cite this article: Bone Joint Res 2019;8:544–549.
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Affiliation(s)
- W Zheng
- Department of Orthopaedics, Affiliated Hospital of Hebei University, Baoding, China
| | - C Liu
- Department of Pharmacology, Department of Medicine, Hebei University, Baoding, China
| | - M Lei
- Department of Orthopaedics, Affiliated Hospital of Hebei University, Baoding, China
| | - Y Han
- Department of Orthopaedics, Affiliated Hospital of Hebei University, Baoding, China
| | - X Zhou
- Department of Orthopaedics, Affiliated Hospital of Hebei University, Baoding, China
| | - C Li
- Department of Orthopaedics, Affiliated Hospital of Hebei University, Baoding, China
| | - S Sun
- Department of Orthopaedics, Affiliated Hospital of Hebei University, Baoding, China
| | - X Ma
- Department of Orthopaedics, Affiliated Hospital of Hebei University, Baoding, China
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He S, Wen Q, O’Shea C, Mu-u-min R, Kou K, Grassam-Rowe A, Liu Y, Fan Z, Tan X, Ou X, Camelliti P, Pavlovic D, Lei M. A Protocol for Transverse Cardiac Slicing and Optical Mapping in Murine Heart. Front Physiol 2019; 10:755. [PMID: 31293436 PMCID: PMC6603341 DOI: 10.3389/fphys.2019.00755] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 05/31/2019] [Indexed: 01/27/2023] Open
Abstract
Thin living tissue slices have recently emerged as a new tissue model for cardiac electrophysiological research. Slices can be produced from human cardiac tissue, in addition to small and large mammalian hearts, representing a powerful in vitro model system for preclinical and translational heart research. In the present protocol, we describe a detailed mouse heart transverse slicing and optical imaging methodology. The use of this technology for high-throughput optical imaging allows study of electrophysiology of murine hearts in an organotypic pseudo two-dimensional model. The slices are cut at right angles to the long axis of the heart, permitting robust interrogation of transmembrane potential (Vm) and calcium transients (CaT) throughout the entire heart with exceptional regional precision. This approach enables the use of a series of slices prepared from the ventricles to measure Vm and CaT with high temporal and spatial resolution, allowing (i) comparison of successive slices which form a stack representing the original geometry of the heart; (ii) profiling of transmural and regional gradients in Vm and CaT in the ventricle; (iii) characterization of transmural and regional profiles of action potential and CaT alternans under stress (e.g., high frequency pacing or β-adrenergic stimulation) or pathological conditions (e.g., hypertrophy). Thus, the protocol described here provides a powerful platform for innovative research on electrical and calcium handling heterogeneity within the heart. It can be also combined with optogenetic technology to carry out optical stimulation; aiding studies of cellular Vm and CaT in a cell type specific manner.
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Affiliation(s)
- S. He
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Q. Wen
- Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - C. O’Shea
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
| | - R. Mu-u-min
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
| | - K. Kou
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - A. Grassam-Rowe
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
| | - Y. Liu
- Department of Cardiovascular Medicine, Southwest Medical University, Luzhou, China
| | - Z. Fan
- Department of Cardiovascular Medicine, Southwest Medical University, Luzhou, China
| | - X. Tan
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - X. Ou
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - P. Camelliti
- School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - D. Pavlovic
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
| | - M. Lei
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
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Liu WJ, Liu ML, Lin S, Liu JC, Lei M, Wu H, Dai CQ, Wei ZY. Synthesis of high quality silver nanowires and their applications in ultrafast photonics. Opt Express 2019; 27:16440-16448. [PMID: 31252869 DOI: 10.1364/oe.27.016440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 05/16/2019] [Indexed: 06/09/2023]
Abstract
Silver nanowires are widely used in catalysts, surface enhanced Raman scattering, microelectronic equipment, thin film solar cells, microelectrodes and biosensors for their excellent conductivity, heat transfer, low surface resistance, high transparency and good biocompatibility. However, the optical nonlinearity of silver nanowires has not been further explored yet. In this paper, three silver nanowire samples with different concentrations are produced via a typical hydrothermal method. Their applications to fiber lasers are implemented to prove the optical nonlinearity of silver nanowires for the first time. Based on three kinds of silver nanowires, the mode-locked operation of fiber lasers is successfully realized. Moreover, the fiber laser based on the silver nanowire with a concentration of 2 mg/L demonstrates the shortest pulse duration of 149.3 fs. The experiment not only proves the optical nonlinearity of silver nanowires, but also has some enlightenment on the selection of the optimum concentration of silver nanowires in the consideration of ultrashort pulse output.
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Lei M, Hua Q. [Ressarch of prior-localization femoral tunnel in medial patellofemoral ligament reconstruction]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2019; 33:546-550. [PMID: 31090346 DOI: 10.7507/1002-1892.201811098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To introduce the method of prior-localization femoral tunnel by using a special positioning tool under the C-arm radiographic machine before surgery, and to study the effect on the knee function recovery after medial patellofemoral ligament (MPFL) reconstruction. Methods Between January 2014 and January 2016, 32 patients with recurrent unilateral knee patellar dislocation were treated by arthroscopic patellofemoral lateral retinaculum release and MPFL reconstruction. The femoral tunnel position during MPFL reconstruction was prior-localizated under C-arm radiographic machine before operation. There were 8 males and 24 females, aged from 15 to 37 years, with an average of 23.8 years. The time from injury to admission ranged from 1 to 24 months, with an average of 9.7 months. Isometric point distance was measured on CT three-dimensional reconstruction image after operation to evaluate whether the position of femoral tunnel was isometric, and knee joint function was evaluated by Lysholm score. Spearman correlation analysis was performed between isometric point distance and Lysholm score. Results All the 32 patients were followed up 12-18 months (mean, 14.2 months). No symptoms of patellar subluxation or dislocation was found during follow-up. Patellar extrapolation test and patellar extrapolation fear test were negative. The isometric point distance was 1.5-5.9 mm (mean, 3.44 mm) at 3 days after operation. All femoral tunnels were located in equidistant tunnels. At last follow-up, the Lysholm score of the patients was 92.8±2.1, which was significantly improved when compared with preoperative score (54.4±2.8) ( t=61.911, P=0.000). Isometric point distance was negatively correlated with Lysholm score ( r=-0.454, P=0.009). Conclusion C-arm radiographic machine can locate the femoral tunnel position of MPFL easily and accurately before operation. The short-term and medium-term effectiveness are satisfactory, and the ionizing radiation injury caused by multiple fluoroscopy during operation is avoided.
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Affiliation(s)
- Mingming Lei
- Department of Orthopaedic Sports Medicine and Arthroscope, the Sports Hospital Affiliated to Chengdu Sport University, Chengdu Sichuan, 610041, P.R.China
| | - Qiang Hua
- Department of Orthopaedic Sports Medicine and Arthroscope, the Sports Hospital Affiliated to Chengdu Sport University, Chengdu Sichuan, 610041,
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Liu WJ, Liu ML, Liu B, Quhe RG, Lei M, Fang SB, Teng H, Wei ZY. Nonlinear optical properties of MoS 2-WS 2 heterostructure in fiber lasers. Opt Express 2019; 27:6689-6699. [PMID: 30876248 DOI: 10.1364/oe.27.006689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
As a saturable absorption material, the heterostructure with the van der Waals structure has been paid much attention in material science. In general, the heterogeneous combination is able to neutralize, or even exceed, the individual material's advantages in some aspects. In this paper, which describes the magnetron sputtering deposition method, the tapered fiber is coated by the MoS2-WS2 heterostructure, and the MoS2-WS2 heterostructure saturable absorber (SA) is fabricated. The modulation depth of the prepared MoS2-WS2 heterostructure SA is measured to be 19.12%. Besides, the theoretical calculations for the band gap and carrier mobility of the MoS2-WS2 heterostructure are provided. By employing the prepared SA, a stable and passively erbium-doped fiber laser is implemented. The generated pulse duration of 154 fs is certified to be the shortest among all fiber lasers based on transition mental dichalcogenides. Results in this paper provide the new direction for the fabrication of ultrafast photon modulation devices.
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Pencharz D, Dunn J, Connor S, Siddiqui A, Sriskandan N, Thavaraj S, Jeannon JP, Oakley R, Lei M, Guerrero-Urbano T, Cook GJ, Szyszko TA. Palatine tonsil SUVmax on FDG PET-CT as a discriminator between benign and malignant tonsils in patients with and without head and neck squamous cell carcinoma of unknown primary. Clin Radiol 2019; 74:165.e17-165.e23. [PMID: 30454841 DOI: 10.1016/j.crad.2018.10.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 10/16/2018] [Indexed: 11/22/2022]
Abstract
AIM To analyse the maximum standardised uptake value (SUVmax) ratio between tonsils in patients with and without tonsillar carcinoma to determine useful diagnostic thresholds. MATERIALS AND METHODS Positron-emission tomography (PET)/computed tomography (CT) examinations of patients with suspected head and neck squamous cell carcinoma (SCC) and controls from April 2013 to September 2016 were reviewed retrospectively. Tonsillar SUVmax ratios (ipsilateral/contralateral for malignant tonsils, maximum/minimum for patients without [controls]) were calculated and used to construct a receiver operating characteristic (ROC) curve. RESULTS Twenty-five patients had tonsillar carcinoma (mean SUVmax ratio of 2, range 0.89-5.4) and 86 patients acted as controls (mean SUVmax ratio of 1.1, range 1-1.5). Using the ROC, the most accurate SUVmax ratio for identifying malignancy was >1.2 (77% sensitivity, 86% specificity). A potentially more clinically useful SUVmax ratio is ≥1.6 with 62% sensitivity and 100% specificity. CONCLUSION An SUVmax ratio between tonsils of ≥1.6 is highly suspicious for SCC and could be used to direct site of biopsy. Some malignant tonsils had normal FDG uptake; therefore, PET/CT should not be used to exclude tonsillar cancer. Minor asymmetrical uptake is frequently seen in non-malignant tonsils and does not necessarily require further investigation. Due to the single centre nature of this study and the recognised variation in SUV measurements between PET scans, other centres may need to develop their own cut-offs.
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Affiliation(s)
- D Pencharz
- Department of Nuclear Medicine, Brighton and Sussex University Hospitals NHS Trust, Brighton, UK.
| | - J Dunn
- King's College London and St Guy's and St Thomas' PET Centre, London, UK
| | - S Connor
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - A Siddiqui
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - N Sriskandan
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - S Thavaraj
- Head and Neck Pathology, King's College, London, UK
| | - J-P Jeannon
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - R Oakley
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - M Lei
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | | | - G J Cook
- King's College London and St Guy's and St Thomas' PET Centre, London, UK
| | - T A Szyszko
- King's College London and St Guy's and St Thomas' PET Centre, London, UK
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Huang HT, Lu YL, Wang CF, Lei M, Wang R, Wei YS. [Research progress on the association between microRNA-17-92 cluster and cardiovascular and cerebrovascular diseases]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:73-77. [PMID: 30669817 DOI: 10.3760/cma.j.issn.0253-3758.2019.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H T Huang
- Department of Clinical Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
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Guo M, Wu T, Bai H, Xi R, Wang CB, Pan YZ, Cai YG, Feng QS, Lei M. [Clinical features and prognosis of infection related to allogeneic hematopoietic stem cell transplantation in patients with blood diseases]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:69-72. [PMID: 30704232 PMCID: PMC7351692 DOI: 10.3760/cma.j.issn.0253-2727.2019.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Indexed: 11/20/2022]
Affiliation(s)
- M Guo
- Department of Hematology, Lanzhou General Hospital, Lanzhou Command, Lanzhou 730050, China
| | - T Wu
- Department of Hematology, Lanzhou General Hospital, Lanzhou Command, Lanzhou 730050, China
| | - H Bai
- Department of Hematology, Lanzhou General Hospital, Lanzhou Command, Lanzhou 730050, China
| | - R Xi
- Department of Hematology, Lanzhou General Hospital, Lanzhou Command, Lanzhou 730050, China
| | - C B Wang
- Department of Hematology, Lanzhou General Hospital, Lanzhou Command, Lanzhou 730050, China
| | - Y Z Pan
- Department of Hematology, Lanzhou General Hospital, Lanzhou Command, Lanzhou 730050, China
| | - Y G Cai
- Department of Hematology, Lanzhou General Hospital, Lanzhou Command, Lanzhou 730050, China
| | - Q S Feng
- Department of Microbiology Laboratory, Lanzhou General Hospital, Lanzhou Command, Lanzhou 730050, China
| | - M Lei
- Institute of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China
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Wang R, Zeng Y, Qin H, Lu Y, Huang H, Lei M, Tan T, Huang Y, Luo H, Lan Y, Wei Y. Association of interleukin 22 gene polymorphisms and serum IL-22 level with risk of systemic lupus erythematosus in a Chinese population. Clin Exp Immunol 2018; 193:143-151. [PMID: 29603203 PMCID: PMC6046499 DOI: 10.1111/cei.13133] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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] [Accepted: 03/21/2018] [Indexed: 01/12/2023] Open
Abstract
The aim of this study was to investigate the association between the single-nucleotide polymorphisms (SNPs) of the interleukin 22 (IL-22) gene and systemic lupus erythematosus (SLE) in a Chinese population. Three IL-22 SNPs (rs2227485, rs2227513 and rs2227491) were genotyped using SNaPshot SNP genotyping assays and identified by sequencing in 314 SLE patients and 411 healthy controls. The IL-22 level of serum was assessed by enzyme-linked immunosorbent assay (ELISA) kits. Data were analysed by spss version 17.0 software. We found that rs2227513 was associated with an increased risk of SLE [AG versus AA: adjusted odds ratio (aOR) = 2·24, 95% confidence interval (CI) = 1·22-4·12, P = 0·010; G versus· A: adjusted OR = 2·18, 95% CI = 1·20-3·97, P = 0·011]. Further analysis in patients with SLE showed that the AG genotype and G allele were associated with an increased risk of renal disorder in SLE (G versus A: aOR = 3·09, 95% CI = 1·30-7·33, P = 0·011; AG versus· AA: aOR = 3·25, 95% CI = 1·35-7·85, P = 0·009). In addition, the concentration of IL-22 was significantly lower in the rs2227513 AG genotype compared with AA genotype (P = 0·028). These results suggest that rs2227513 polymorphism might contribute to SLE susceptibility, probably by decreasing the expression of IL-22.
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Affiliation(s)
- R. Wang
- Clinical Medical School, Youjiang Medical University for NationalitiesBaiseGuangxiChina
- Department of Laboratory Medicinethe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - Y.‐L. Zeng
- Department of Laboratory Medicinethe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - H.‐M. Qin
- Clinical Medical School, Youjiang Medical University for NationalitiesBaiseGuangxiChina
- Department of Laboratory Medicinethe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - Y.‐L. Lu
- Clinical Medical School, Youjiang Medical University for NationalitiesBaiseGuangxiChina
- Department of Laboratory Medicinethe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - H.‐T. Huang
- Clinical Medical School, Youjiang Medical University for NationalitiesBaiseGuangxiChina
- Department of Laboratory Medicinethe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - M. Lei
- Clinical Medical School, Youjiang Medical University for NationalitiesBaiseGuangxiChina
- Department of Laboratory Medicinethe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - T. Tan
- Clinical Medical School, Youjiang Medical University for NationalitiesBaiseGuangxiChina
- Department of Laboratory Medicinethe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - Y.‐Y. Huang
- Clinical Medical School, Youjiang Medical University for NationalitiesBaiseGuangxiChina
- Department of Laboratory Medicinethe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - H.‐C. Luo
- Department of Laboratory Medicinethe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - Y. Lan
- Department of Dermatologythe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - Y.‐S. Wei
- Department of Laboratory Medicinethe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
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Wen Q, Gandhi K, Capel RA, Hao G, O'Shea C, Neagu G, Pearcey S, Pavlovic D, Terrar DA, Wu J, Faggian G, Camelliti P, Lei M. Transverse cardiac slicing and optical imaging for analysis of transmural gradients in membrane potential and Ca 2+ transients in murine heart. J Physiol 2018; 596:3951-3965. [PMID: 29928770 PMCID: PMC6117587 DOI: 10.1113/jp276239] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [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: 04/11/2018] [Accepted: 06/12/2018] [Indexed: 11/18/2022] Open
Abstract
Key points A robust cardiac slicing approach was developed for optical mapping of transmural gradients in transmembrane potential (Vm) and intracellular Ca2+ transient (CaT) of murine heart. Significant transmural gradients in Vm and CaT were observed in the left ventricle. Frequency‐dependent action potentials and CaT alternans were observed in all ventricular regions with rapid pacing, with significantly greater incidence in the endocardium than epicardium. The observations demonstrate the feasibility of our new approach to cardiac slicing for systematic analysis of intrinsic transmural and regional gradients in Vm and CaT.
Abstract Transmural and regional gradients in membrane potential and Ca2+ transient in the murine heart are largely unexplored. Here, we developed and validated a robust approach which combines transverse ultra‐thin cardiac slices and high resolution optical mapping to enable systematic analysis of transmural and regional gradients in transmembrane potential (Vm) and intracellular Ca2+ transient (CaT) across the entire murine ventricles. The voltage dye RH237 or Ca2+ dye Rhod‐2 AM were loaded through the coronary circulation using a Langendorff perfusion system. Short‐axis slices (300 μm thick) were prepared from the entire ventricles (from the apex to the base) by using a high‐precision vibratome. Action potentials (APs) and CaTs were recorded with optical mapping during steady‐state baseline and rapid pacing. Significant transmural gradients in Vm and CaT were observed in the left ventricle, with longer AP duration (APD50 and APD75) and CaT duration (CaTD50 and CaTD75) in the endocardium compared with that in the epicardium. No significant regional gradients were observed along the apico‐basal axis of the left ventricle. Interventricular gradients were detected with significantly shorter APD50, APD75 and CaTD50 in the right ventricle compared with left ventricle and ventricular septum. During rapid pacing, AP and CaT alternans were observed in most ventricular regions, with significantly greater incidence in the endocardium in comparison with epicardium. In conclusion, these observations demonstrate the feasibility of our new approach to cardiac slicing for systematic analysis of intrinsic transmural and regional gradients in Vm and CaT in murine ventricular tissue. A robust cardiac slicing approach was developed for optical mapping of transmural gradients in transmembrane potential (Vm) and intracellular Ca2+ transient (CaT) of murine heart. Significant transmural gradients in Vm and CaT were observed in the left ventricle. Frequency‐dependent action potentials and CaT alternans were observed in all ventricular regions with rapid pacing, with significantly greater incidence in the endocardium than epicardium. The observations demonstrate the feasibility of our new approach to cardiac slicing for systematic analysis of intrinsic transmural and regional gradients in Vm and CaT.
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Affiliation(s)
- Q Wen
- Institution of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - K Gandhi
- Medical School, University of Verona, Verona, Italy
| | - Rebecca A Capel
- Department of Pharmacology, University of Oxford, Oxford, UK
| | - G Hao
- Key Laboratory of Medical Electrophysiology of Ministry of Education, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease/Institute of Cardiovascular Research, Southwest Medical University, Luzhou, 6400, China
| | - C O'Shea
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - G Neagu
- Department of Pharmacology, University of Oxford, Oxford, UK
| | - S Pearcey
- Department of Pharmacology, University of Oxford, Oxford, UK
| | - D Pavlovic
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Derek A Terrar
- Department of Pharmacology, University of Oxford, Oxford, UK
| | - J Wu
- Institution of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - G Faggian
- Medical School, University of Verona, Verona, Italy
| | | | - M Lei
- Department of Pharmacology, University of Oxford, Oxford, UK.,Key Laboratory of Medical Electrophysiology of Ministry of Education, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease/Institute of Cardiovascular Research, Southwest Medical University, Luzhou, 6400, China
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