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Jin LL, He MY, Zhou H, Xie WP, Kong H. [Effects of macrophage glycolytic reprogramming on tuberculosis granuloma formation]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:834-838. [PMID: 37536997 DOI: 10.3760/cma.j.cn112147-20221119-00912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
The formation of granulomatous lesions is a typical pathological feature of tuberculosis, and infection with Mycobacterium tuberculosis is the main cause. Although the mechanism underlying granuloma formation remains unclear, increasing evidence suggests that immune metabolism plays an important role. In this review, we summarized the latest advances in macrophage glycolytic reprogramming in tuberculosis granuloma formation to discover new methods for early diagnosis and provided new ideas for tuberculosis therapeutics based on the regulation of immune metabolism.
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Affiliation(s)
- L L Jin
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - M Y He
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H Zhou
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - W P Xie
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H Kong
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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2
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He MY, Zeng FF, Wu Y, Miao Q. [A case of Wiedemann-Steiner syndrome characterized by amenorrhoea, hypertrichosis, short stature, intellectual disability]. Zhonghua Nei Ke Za Zhi 2023; 62:438-441. [PMID: 37032141 DOI: 10.3760/cma.j.cn112138-20220709-00503] [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: 04/11/2023]
Affiliation(s)
- M Y He
- Department of Endocrinology and Metabolism, Huashan Hospital, Fudan University, Shanghai 200040, China Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - F F Zeng
- Department of Endocrinology and Metabolism, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Y Wu
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Q Miao
- Department of Endocrinology and Metabolism, Huashan Hospital, Fudan University, Shanghai 200040, China
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3
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He MY, Zhang P, Shi N, Li T, Wang J, He L, Liang Z, Song L, Wang G, Yang X. Nrf2 Is Involved in Hyperglycemia-Induced Abnormal Lung Development Through Both Antioxidation-Dependent and Antioxidation-Independent Activation. Am J Respir Cell Mol Biol 2023. [PMID: 36780671 DOI: 10.1165/rcmb.2022-0345oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
Accumulating evidence has shown that hyperglycemia during pregnancy negatively affects lung development. However, the pathological mechanism of lung dysplasia caused by hyperglycemia remains unclear. In this study, we demonstrated the phenotypes of the impaired lung epithelial cell differentiation of mouse lungs in both pregestational diabetes mellitus (PGDM) and gestational diabetes mellitus (GDM), and increased levels of oxidative stress and activation of the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathways occurred. Nrf2 deficiency during pregnancy led to the aforementioned similar and aggravated phenotypes of the poor saccular process as in diabetes, implying the Nrf2 signaling pathway played a very important role in both physiological and pathological conditions. Based on RNA-Seq and luciferase reporter gene analysis, we revealed that Nrf2 could regulate Wnt signaling by targeting Ctnnd2. In summary, we revealed the pathological mechanism of how diabetes affected late lung development during embryogenesis, especially elucidating the bilateral roles of Nrf2-mediated oxidative stress responses and Wnt signaling. This finding also indicated that Nrf2 could potentially be used in preventing or treating pulmonary anomalies induced by hyperglycemia during pregnancy.
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Affiliation(s)
- Mei-Yao He
- Jinan University, 47885, Division of Histology and Embryology, International Joint Laboratory for Embryonic Development & Prenatal Medicine, Medical College, Guangzhou, Guangdong, China.,The First People's Hospital of FoShan, Department of Pathology, foshan, guangdongshen, China
| | - Ping Zhang
- Jinan University, 47885, Guangzhou, Guangdong, China
| | - Nannan Shi
- Jinan University, 47885, Guangzhou, Guangdong, China
| | - Tingting Li
- Jinan University, 47885, Guangzhou, Guangdong, China
| | - Jingyun Wang
- Jinan University, 47885, Guangzhou, Guangdong, China
| | - Longkai He
- Jinan University, 47885, Guangzhou, Guangdong, China
| | - Zefeng Liang
- Jinan University, 47885, Guangzhou, Guangdong, China
| | - Linliang Song
- Jinan University, 47885, Guangzhou, Guangdong, China
| | - Guang Wang
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, School of Basic Medical Sciences, Jinan University, Guangzhou, China
| | - Xuesong Yang
- Department of Pediatrics and Neonatology, Institute of Fetal-Preterm Labor Medicine, The First Affiliated Hospital, Jinan University, Guangzhou, China;
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4
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Wang J, Wang Y, He MY, Li YX, Cheng X, Yang X, Li RM, Wang G. Maternal and infant outcomes during the COVID-19 pandemic: a retrospective study in Guangzhou, China. Reprod Biol Endocrinol 2021; 19:126. [PMID: 34404413 PMCID: PMC8369138 DOI: 10.1186/s12958-021-00807-z] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 07/26/2021] [Indexed: 12/24/2022] Open
Abstract
In late December 2019, the COVID-19 pandemic caused a great threat to people's lives worldwide. As a special category of the population, pregnant women are vulnerable during emergencies. This study was designed to explore whether or not the COVID-19 pandemic has influenced maternal and infant outcomes. We collected maternal characteristics, laboratory results, condition in the third trimester, maternal outcome, fetal or neonatal outcomes, and characteristics of amniotic fluid, umbilical cord and placenta from pregnant women and fetals or newborns in the first affiliated hospital of Jinan university from 24 January to 31 March 2020 (peak period), chose the same types of data at the hospital during the same period in 2019 and 1 January-23 January 2020 (prior to the outbreak of COVID-19 in 2020) as a control. Our study focused on uncomplicated singleton pregnancies among women not infected by COVID-19. The results demonstrated that there was not an increase in adverse outcomes of pregnant women and newborns during the COVID-19 pandemic; This might be associated with the updated design of major epidemic prevention and control systems in Guangzhou, and the extension of pregnant women's rest time during the third trimester of pregnancy. Nevertheless, the survey showed an increased incidence rate of 25-hydroxyvitamin D and zinc deficiency in newborns during the epidemic, implying that pregnant women should participate in appropriate physical exercise, increase their exposure to outdoor sunlight and improve nutrition intake to ensure healthy newborns during the quarantine period. Our study has provided some guidance for maternal management during the COVID-19 pandemic.
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Affiliation(s)
- Jingyun Wang
- The First Affiliate Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, 510632, China
| | - Yun Wang
- The First Affiliate Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Mei-Yao He
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, 510632, China
| | - Yi-Xiao Li
- The First Affiliate Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Xin Cheng
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, 510632, China
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, 510632, China
| | - Xuesong Yang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, 510632, China.
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, 510632, China.
- Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Medical College, Jinan University, Guangzhou, 510632, China.
| | - Rui-Man Li
- The First Affiliate Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.
| | - Guang Wang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, 510632, China.
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, 510632, China.
- Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Medical College, Jinan University, Guangzhou, 510632, China.
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De Oliveira Duarte S, Rancoule C, He MY, Baury M, Sotton S, Vallard A, Espenel S, Guy JB, Guillaume É, Vial N, Magné N, Rehailia-Blanchard A. Use of 4D-CT for radiotherapy planning and reality in France: Data from a national survey. Cancer Radiother 2019; 23:395-400. [PMID: 31331842 DOI: 10.1016/j.canrad.2019.02.006] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/15/2019] [Accepted: 02/21/2019] [Indexed: 12/25/2022]
Abstract
PURPOSE Lung and some digestive tumours move during a respiratory cycle. Four-dimensional scanography (4D-CT) is commonly used in treatment planning to account for respiratory motion. Although many French radiotherapy centres are now equipped, there are no guidelines on this subject to date. We wanted to draw up a description of the use of the 4D-CT for the treatment planning in France. METHODS AND MATERIAL We conducted a survey in all French radiotherapy centres between March and April 2017. RESULTS One hundred and seventy-two were contacted. The participation rate was 88.37%. The use of the 4D-CT seems to be common and concerned planning for 15.28% of kidney and adrenal cancers, 19.72% of pancreatic cancers, 27.78% of oesophageal cancers and 73.24% of lung cancers in case of normofractionated treatments. The use of the 4D-CT was also widespread in the case of stereotactic body radiation therapy: with 61.11% in the case of pulmonary irradiation and 34.72% in the case of hepatic irradiation. Many centres declared they carried out several 4D-CT for treatment planning (29, 55% in case of stereotactic body radiation therapy for lung tumours and 20% for liver tumours). Private centres tend to repeat 4D-CT more. CONCLUSION Although the use of the 4D-CT appears to be developing, it remains very heterogeneous. To date, the repetition of the 4D-CT has been very poorly studied and could be the subject of clinical studies, allowing to define in which indications and for which populations there is a real benefit.
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Affiliation(s)
- S De Oliveira Duarte
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France; CS 60032, École universitaire de physique et d'ingénierie, université Clermont-Auvergne, 49, boulevard François-Mitterrand, 63001 Clermont-Ferrand, France
| | - C Rancoule
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France
| | - M Y He
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France; Oncology department, Affiliated Hospital of Guizhou Medical University, China
| | - M Baury
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France
| | - S Sotton
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France
| | - A Vallard
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France
| | - S Espenel
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France
| | - J-B Guy
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France
| | - É Guillaume
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France
| | - N Vial
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France
| | - N Magné
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France
| | - A Rehailia-Blanchard
- Département de radiothérapie, Institut de cancérologie de la Loire Lucien-Neuwirth, 108, bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France.
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Rehailia-Blanchard A, He MY, Rancoule C, Guillaume É, Guy JB, Vial N, Nivet A, Orliac H, Chargari C, Magné N. [Medical prevention and treatment of radiation-induced urological and nephrological complications]. Cancer Radiother 2019; 23:151-160. [PMID: 30898418 DOI: 10.1016/j.canrad.2018.05.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 05/09/2018] [Accepted: 05/30/2018] [Indexed: 02/02/2023]
Abstract
Abdominal and pelvic irradiations play a major place in the management of patients with cancer and present a risk of acute and late side effects. Radiation-induced lesions can affect kidney or urological structures. These side effects can have an impact in the quality of life of patients. The aim of this article is to describe the physiopathology, the symptomatology, and the principles of management of radiation-induced nephropathy, uretheritis, cystitis, and urethritis.
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Affiliation(s)
- A Rehailia-Blanchard
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 108 bis, rue Albert-Raimond, 42270 Saint-Priest en Jarez, France.
| | - M Y He
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 108 bis, rue Albert-Raimond, 42270 Saint-Priest en Jarez, France; Oncology departement, affiliated hospital of Guizhou medical university, 550004 China
| | - C Rancoule
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 108 bis, rue Albert-Raimond, 42270 Saint-Priest en Jarez, France
| | - É Guillaume
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 108 bis, rue Albert-Raimond, 42270 Saint-Priest en Jarez, France
| | - J-B Guy
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 108 bis, rue Albert-Raimond, 42270 Saint-Priest en Jarez, France
| | - N Vial
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 108 bis, rue Albert-Raimond, 42270 Saint-Priest en Jarez, France
| | - A Nivet
- Département de radiothérapie, CHU de Limoges, 2, avenue Martin-Luther-King, 87000 Limoges, France
| | - H Orliac
- Département de radiothérapie, CHU de Limoges, 2, avenue Martin-Luther-King, 87000 Limoges, France
| | - C Chargari
- Département de radiothérapie, Gustave-Roussy Cancer Campus, 114, rue Édouard-Vaillant, 94805 Villejuif, France; Inserm, U1030, 114, rue Édouard-Vaillant, 94805 Villejuif , France; Université Paris Sud, université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France; Institut de recherche biomédicale des armées, D19, 91220 Brétigny-sur-Orge, France
| | - N Magné
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 108 bis, rue Albert-Raimond, 42270 Saint-Priest en Jarez, France
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7
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Vallard A, Rancoule C, Espenel S, Garcia MA, Langrand-Escure J, He MY, Ben Mrad M, El Meddeb Hamrouni A, Ouni S, Trone JC, Rehailia-Blanchard A, Guillaume E, Vial N, Riocreux C, Guy JB, Magné N. Harnessing drug/radiation interaction through daily routine practice: Leverage medical and methodological point of view (MORSE 02-17 study). Radiother Oncol 2018; 129:471-478. [PMID: 29937210 DOI: 10.1016/j.radonc.2018.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 06/02/2018] [Accepted: 06/04/2018] [Indexed: 12/30/2022]
Abstract
BACKGROUND Safety profile of the interaction between anticancer drugs and radiation is a recurrent question. However, there are little data regarding the non-anticancer treatment (NACT)/radiation combinations. The aim of the present study was to investigate concomitant NACTs in patients undergoing radiotherapy in a French comprehensive cancer center. METHODS A prospective cross-sectional study was conducted. All cancer patients undergoing a palliative or curative radiotherapy were consecutively screened for six weeks in 2016. Data on NACTs were collected. RESULTS Out of 214 included patients, a NACT was concomitantly prescribed to 155 patients (72%), with a median number of 5 NACTs per patient (range: 1-12). The most prescribed drugs were anti-hypertensive drugs (101 patients, 47.2%), psychotropic drugs (n = 74, 34.6%), analgesics (n = 78, 36.4%), hypolipidemic drugs (n = 57, 26.6%), proton pump inhibitors (n = 46, 21.5%) and antiplatelet drugs (n = 38, 17.8%). Although 833 different molecules were reported, only 20 possible modifiers of cancer biological pathways (prescribed to 74 patients (34.5%)) were identified. Eight out of the 833 molecules (0.9%), belonging to six drug families, have been investigated in 28 ongoing or published clinical trials in combo with radiotherapy. They were prescribed to 63 patients (29.4%). CONCLUSION Drug-radiation interaction remains a subject of major interest, not only for conventional anticancer drugs, but also for NACTs. New trial designs are thus required.
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Affiliation(s)
- A Vallard
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France; Cellular and Molecular Radiobiology Laboratory, CNRS UMR 5822, IPNL, 69622 Villeurbanne, France
| | - C Rancoule
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France; Cellular and Molecular Radiobiology Laboratory, CNRS UMR 5822, IPNL, 69622 Villeurbanne, France
| | - S Espenel
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France; Cellular and Molecular Radiobiology Laboratory, CNRS UMR 5822, IPNL, 69622 Villeurbanne, France
| | - M-A Garcia
- General Health Department, Hygée Institute, Avenue Albert Raimond, BP 60008, 42271 Saint-Priest en Jarez, France
| | - J Langrand-Escure
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France
| | - M Y He
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France
| | - M Ben Mrad
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France
| | - A El Meddeb Hamrouni
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France
| | - S Ouni
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France
| | - J-C Trone
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France
| | - A Rehailia-Blanchard
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France
| | - E Guillaume
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France
| | - N Vial
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France
| | - C Riocreux
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France
| | - J-B Guy
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France; Cellular and Molecular Radiobiology Laboratory, CNRS UMR 5822, IPNL, 69622 Villeurbanne, France
| | - N Magné
- Radiotherapy Department, Lucien Neuwirth Cancer Institute, 42270 St Priest en Jarez, France; Cellular and Molecular Radiobiology Laboratory, CNRS UMR 5822, IPNL, 69622 Villeurbanne, France.
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Abstract
Diabetes mellitus in pregnancy has been known to affect the embryonic development of various systems, including cardiovascular and nervous systems. However, whether this disease could have a negative impact on embryonic respiratory system remains controversial. In this study, we demonstrated that pregestational diabetes mellitus (PGDM)-induced defects in lung development in mice are mainly characterized by the changes in the morphological structure of the lung. Immunostaining and Western blotting showed that proliferation increased and apoptosis decreased in PGDM. Hyperglycaemia caused pulmonary tissue fibrationas manifested by an increase in Masson staining and decorin expression in PGDM lungs, and the immunofluorescent pro-SPC+ type II pulmonary epithelial cell number was decreased. The alteration of pulmonary epithelial cell differentiation might be due to hyperglycaemia-activated Wnt signalling and suppressed GATA6 expression in PGDM mouse lung tissues and MLE-12 cells. The treatment of MLE-12 cells with high glucose in the presence/absence of XAV939 or su5402 further proved that hyperglycaemia suppressed the expression of GATA6 and pro-SPC by activating Wnt signalling and induced the expression of decorin, α-SMA and TGF-β by activating Fgf signalling. Therefore, in this study, we revealed that hyperglycemia induced dysfunctional pulmonary cell apoptosis and proliferation, as well as pulmonary myofibroblast hyperplasia, which contributed to the formation of aberrant structure of alveolar walls. Furthermore, the hyperglycaemia also inhibited the differentiation of pulmonary epithelial cells through the canonical Wnt and Fgf signalling, and the alteration of Fgf and Wnt signalling activated TGF-β, which would promote the AECII EMT process.
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Affiliation(s)
- Mei-Yao He
- a Department of Pediatrics and Neonatology , Institute of Fetal-Preterm Labor Medicine ; The First Affiliated Hospital , Jinan University , Guangzhou 510630 , China
| | - Guang Wang
- b Division of Histology & Embryology , Key Laboratory for Regenerative Medicine of the Ministry of Education , Medical College , Jinan University , Guangzhou 510632 , China
| | - Sha-Sha Han
- a Department of Pediatrics and Neonatology , Institute of Fetal-Preterm Labor Medicine ; The First Affiliated Hospital , Jinan University , Guangzhou 510630 , China
| | - Ke Li
- b Division of Histology & Embryology , Key Laboratory for Regenerative Medicine of the Ministry of Education , Medical College , Jinan University , Guangzhou 510632 , China
| | - Ya Jin
- a Department of Pediatrics and Neonatology , Institute of Fetal-Preterm Labor Medicine ; The First Affiliated Hospital , Jinan University , Guangzhou 510630 , China
| | - Meng Liu
- b Division of Histology & Embryology , Key Laboratory for Regenerative Medicine of the Ministry of Education , Medical College , Jinan University , Guangzhou 510632 , China
| | - Zhen-Peng Si
- a Department of Pediatrics and Neonatology , Institute of Fetal-Preterm Labor Medicine ; The First Affiliated Hospital , Jinan University , Guangzhou 510630 , China
| | - Ju Wang
- c Institute of Biomedicine , National Engineering Research Center of Genetic Medicine , Jinan University , Guangzhou 510632 , China
| | - Guo-Sheng Liu
- a Department of Pediatrics and Neonatology , Institute of Fetal-Preterm Labor Medicine ; The First Affiliated Hospital , Jinan University , Guangzhou 510630 , China
| | - Xuesong Yang
- b Division of Histology & Embryology , Key Laboratory for Regenerative Medicine of the Ministry of Education , Medical College , Jinan University , Guangzhou 510632 , China
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9
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He MY, Wang G, Han SS, Jin Y, Li H, Wu X, Ma ZL, Cheng X, Tang X, Yang X, Liu GS. Nrf2 signalling and autophagy are involved in diabetes mellitus-induced defects in the development of mouse placenta. Open Biol 2017; 6:rsob.160064. [PMID: 27383629 PMCID: PMC4967824 DOI: 10.1098/rsob.160064] [Citation(s) in RCA: 26] [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: 03/16/2016] [Accepted: 06/10/2016] [Indexed: 12/18/2022] Open
Abstract
It is widely accepted that diabetes mellitus impairs placental development, but the mechanism by which the disease operates to impair development remains controversial. In this study, we demonstrated that pregestational diabetes mellitus (PGDM)-induced defects in placental development in mice are mainly characterized by the changes of morphological structure of placenta. The alteration of differentiation-related gene expressions in trophoblast cells rather than cell proliferation/apoptosis is responsible for the phenotypes found in mouse placenta. Meanwhile, excess reactive oxygen species (ROS) production and activated nuclear factor erythroid2-related factor 2 (Nrf2) signalling were observed in the placenta of mice suffering from PGDM. Using BeWo cells, we also demonstrated that excess ROS was produced and Nrf2 signalling molecules were activated in settings characterized by a high concentration of glucose. More interestingly, differentiation-related gene expressions in trophoblast cells were altered when endogenous Nrf2 expression is manipulated by transfecting Nrf2-wt or Nrf2-shRNA. In addition, PGDM interferes with autophagy in both mouse placenta and BeWo cells, implying that autophagy is also involved, directly or indirectly, in PGDM-induced placental phenotypes. Therefore, we revealed that dysfunctional oxidative stress-activated Nrf2 signalling and autophagy are probably responsible for PGDM-induced defects in the placental development of mice. The mechanism was through the interference with differentiation-related gene expression in trophoblast cells.
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Affiliation(s)
- Mei-Yao He
- Department of Pediatrics and Neonatology, Institute of Fetal-Preterm Labor Medicine, The First Affiliated Hospital, Jinan University, Guangzhou 510632, People's Republic of China
| | - Guang Wang
- Division of Histology and Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, People's Republic of China Postdoctoral Research Station of Chinese and Western Integrative Medicine, Institute of Integrated Traditional Chinese and Western, Medical College, Jinan University, Guangzhou 510630, People's Republic of China
| | - Sha-Sha Han
- Department of Pediatrics and Neonatology, Institute of Fetal-Preterm Labor Medicine, The First Affiliated Hospital, Jinan University, Guangzhou 510632, People's Republic of China
| | - Ya Jin
- Department of Pediatrics and Neonatology, Institute of Fetal-Preterm Labor Medicine, The First Affiliated Hospital, Jinan University, Guangzhou 510632, People's Republic of China
| | - He Li
- Division of Histology and Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, People's Republic of China
| | - Xia Wu
- Department of Pediatrics and Neonatology, Institute of Fetal-Preterm Labor Medicine, The First Affiliated Hospital, Jinan University, Guangzhou 510632, People's Republic of China
| | - Zheng-Lai Ma
- Division of Histology and Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, People's Republic of China
| | - Xin Cheng
- Division of Histology and Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, People's Republic of China
| | - Xiuwen Tang
- Department of Biochemistry and Genetics, School of Medicine, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xuesong Yang
- Division of Histology and Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, People's Republic of China
| | - Guo-Sheng Liu
- Department of Pediatrics and Neonatology, Institute of Fetal-Preterm Labor Medicine, The First Affiliated Hospital, Jinan University, Guangzhou 510632, People's Republic of China
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10
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Jin Y, Wang G, Han SS, He MY, Cheng X, Ma ZL, Wu X, Yang X, Liu GS. Effects of oxidative stress on hyperglycaemia-induced brain malformations in a diabetes mouse model. Exp Cell Res 2016; 347:201-211. [PMID: 27497668 DOI: 10.1016/j.yexcr.2016.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 02/28/2016] [Revised: 06/25/2016] [Accepted: 08/03/2016] [Indexed: 01/23/2023]
Abstract
Pregestational diabetes mellitus (PGDM) enhances the risk of fetal neurodevelopmental defects. However, the mechanism of hyperglycaemia-induced neurodevelopmental defects is not fully understood. In this study, several typical neurodevelopmental defects were identified in the streptozotocin-induced diabetes mouse model. The neuron-specific class III beta-tubulin/forkhead box P1-labelled neuronal differentiation was suppressed and glial fibrillary acidic protein-labelled glial cell lineage differentiation was slightly promoted in pregestational diabetes mellitus (PGDM) mice. Various concentrations of glucose did not change the U87 cell viability, but glial cell line-derived neurotrophic factor expression was altered with varying glucose concentrations. Mouse maternal hyperglycaemia significantly increased Tunel(+) apoptosis but did not dramatically affect PCNA(+) cell proliferation in the process. To determine the cause of increased apoptosis, we determined the SOD activity, the expression of Nrf2 as well as its downstream anti-oxidative factors NQO1 and HO1, and found that all of them significantly increased in PGDM fetal brains compared with controls. However, Nrf2 expression in U87 cells was not significantly changed by different glucose concentrations. In mouse telencephalon, we observed the co-localization of Tuj-1 and Nrf2 expression in neurons, and down-regulating of Nrf2 in SH-SY5Y cells altered the viability of SH-SY5Y cells exposed to high glucose concentrations. Taken together, the data suggest that Nrf2-modulated antioxidant stress plays a crucial role in maternal hyperglycaemia-induced neurodevelopmental defects.
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Affiliation(s)
- Ya Jin
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Guang Wang
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, China
| | - Sha-Sha Han
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Mei-Yao He
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Xin Cheng
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, China
| | - Zheng-Lai Ma
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, China
| | - Xia Wu
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Xuesong Yang
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, China.
| | - Guo-Sheng Liu
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China.
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11
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Guo XJ, Xiao B, Zhang XL, Luo SY, He MY. Experimental study on air-stream gasification of biomass micron fuel (BMF) in a cyclone gasifier. Bioresour Technol 2009; 100:1003-1006. [PMID: 18713664 DOI: 10.1016/j.biortech.2008.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2008] [Revised: 07/02/2008] [Accepted: 07/08/2008] [Indexed: 05/26/2023]
Abstract
Based on biomass micron fuel (BMF) with particle size of less than 250 microm, a cyclone gasifier concept has been considered in our laboratory for biomass gasification. The concept combines and integrates partial oxidation, fast pyrolysis, gasification, and tar cracking, as well as a shift reaction, with the purpose of producing a high quality of gas. In this paper, experiments of BMF air-stream gasification were carried out by the gasifier, with energy for BMF gasification produced by partial combustion of BMF within the gasifier using a hypostoichiometric amount of air. The effects of ER (0.22-0.37) and S/B (0.15-0.59) and biomass particle size on the performances of BMF gasification and the gasification temperature were studied. Under the experimental conditions, the temperature, gas yields, LHV of the gas fuel, carbon conversion efficiency, stream decomposition and gasification efficiency varied in the range of 586-845 degrees C, 1.42-2.21 N m(3)/kg biomass, 3806-4921 kJ/m(3), 54.44%-85.45%, 37.98%-70.72%, and 36.35%-56.55%, respectively. The experimental results showed that the gasification performance was best with ER being 3.7 and S/B being 0.31 and smaller particle, as well as H(2)-content. And the BMF gasification by air and low temperature stream in the cyclone gasifier with the energy self-sufficiency is reliable.
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Affiliation(s)
- X J Guo
- School of Environment and Materials Engineering, Yantai University, Road. Qingquan 32, Yantai 264005, China.
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12
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Mercer C, He MY, Wang R, Evans AG. Mechanisms governing the inelastic deformation of cortical bone and application to trabecular bone. Acta Biomater 2006; 2:59-68. [PMID: 16701859 DOI: 10.1016/j.actbio.2005.08.004] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2005] [Revised: 07/28/2005] [Accepted: 08/10/2005] [Indexed: 10/25/2022]
Abstract
To understand the inelastic response of bone, a three-part investigation has been conducted. In the first, unload/reload tests have been used to characterize the hysteresis and provide insight into the mechanisms causing the strain. The second part devises a model for the stress/strain response, based on understanding developed from the measurements. The model rationalizes the inelastic deformation in tension, as well as the permanent strain and hysteresis. In the third part, a constitutive law representative of the deformation is selected and used to illustrate the coupled buckling and bending of ligaments that arise when trabecular bone is loaded in compression.
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Affiliation(s)
- C Mercer
- Materials Department, University of California Santa Barbara, Santa Barbara, 93106, USA.
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13
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Dong YZ, Liu ZL, Shan XH, Qiu T, He MY, Liu B. Allopolyploidy in wheat induces rapid and heritable alterations in DNA methylation patterns of cellular genes and mobile elements. Genetika 2005; 41:1089-95. [PMID: 16161630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Whereas accumulating recent evidences indicate that allopolyploid formation in plants is accompanied by rapid and non-Mendelian genomic changes, some other works showed genomic stasis in both nascent and natural allopolyploids. To further study the issue, we performed global DNA fingerprinting of a newly synthesized allohexaploid wheat and its natural counterpart, the common wheat, by AFLP analysis. It was found that ca. 20% bands showed deviation from parental additivity in both synthetic and the natural common wheat. Sequence analysis indicates that a majority of the changed bands represent known-function genes and transposable elements. DNA gel blot analysis showed that the main type of changes in the amphiploid is epigenetic in nature, i.e., alteration in DNA methylation patterns. Two types of alterations in methylation, random and non-random, were detected, and both types were stably inherited. Possible causes and implications of the epigenetic changes in allopolyploid genome evolution and speciation are discussed.
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Affiliation(s)
- Y Z Dong
- Laboratory of Molecular Epigenetics, Northeast Normal University, Changchun 130024, China
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14
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He MY, Nie LP, Lin XP, Yuan XH, Xie NH. [The clinical use of "2x4" orthodontic technique for mixed dentition's anterior crossbite]. Shanghai Kou Qiang Yi Xue 2001; 10:287. [PMID: 14994024] [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: 04/29/2023]
Affiliation(s)
- M Y He
- Department of Orthodontics, People's Hospital of Cuiping District, Yibin 644000 Sichuan province, China
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15
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Li JL, Shu GM, He MY. [Studies on medicinal plant resources of heizhu ravine in Ebian County and their sustainable utilization]. Zhongguo Zhong Yao Za Zhi 2000; 25:14-6. [PMID: 12205965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
OBJECTIVE To find out the medicinal plant resources of Heizhu Ravine in Ebian County and put forward some principles and measures for their sustainable utilization. METHOD On-the-spot investigation and sample measuring, calculating, visiting and assessing. RESULTS The general situation about these resources was expounded. New curative effects of 3 species, distribution and region output of 7 superiority resource species, 1 plant pesticide species, 3 species suitable for extensive propagation and 7 rare species on the verge of extinction were also reported. CONCLUSION This area has more than 1500 species of medicinal plants, of which about 300 are original traditional Chinese medicinal herb in most use and 1200 are used in folk medicine or as important medicinal raw mAterials.
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Affiliation(s)
- J L Li
- Sichuan Institute of Chinese Materia Medica, Sichuan Chengdu 610041, China
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16
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Zhang X, De Los Angeles JE, He MY, Dalton JT, Shams G, Lei L, Patil PN, Feller DR, Miller DD, Hsu FL. Medetomidine analogs as alpha 2-adrenergic ligands. 3. Synthesis and biological evaluation of a new series of medetomidine analogs and their potential binding interactions with alpha 2-adrenoceptors involving a "methyl pocket". J Med Chem 1997; 40:3014-24. [PMID: 9301663 DOI: 10.1021/jm960642q] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [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] [Indexed: 02/05/2023]
Abstract
The synthesis and the biological evaluation of a new series of medetomidine analogs are reported. The substitution pattern at the phenyl ring of the tetralin analogs had a distinct influence on the alpha 2-adrenoceptor binding affinity. 4-Methylindan analog 6 was the most potent alpha 2-adrenoceptor binding ligand among these 4-substituted imidazoles, and its alpha 2-adrenoceptor selectivity was greater than the 5-methyl tetralin analog 4c. Ligand-pharmacophore and receptor modeling were combined to rationalize alpha 2-adrenoceptor binding data of the imidazole analogs in terms of ligand-receptor interactions. The structure-activity relationships that were apparent from this and previous studies were qualitatively rationalized by the binding site models of the alpha 2-adrenoceptor. The benzylic methyl group of medetomidine or the naphthyl analog 2a was superimposable with the alpha-methyl group of (-)-alpha-methylnorepinephrine and fit into the proposed "methyl pocket" of the alpha 2-adrenoceptor defined by the residues Leu110, Leu169, Phe391, and Thr395.
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Affiliation(s)
- X Zhang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee, Memphis 38163, USA
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17
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McMeeking RM, He MY, Chia R. Structural analysis of the Björk-Shiley Delrin heart valve occluder. J Heart Valve Dis 1996; 5 Suppl 2:S229-37. [PMID: 8905523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND AIMS OF THE STUDY Impact wear grooves were evident in some Delrin occluder discs of explanted Björk-Shiley Delrin (BSD) heart valves. This study focuses on the finite element analysis (FEA) method to understand the maximum principal stresses experienced during the peak in vivo loading of valves in the closed position. MATERIALS AND METHODS The maximum pressure difference across the valve was measured to be 130 mmHg in a pulse duplicator simulating normal sinus rhythm obtained clinically by cardiac catheterization. The corresponding measured strain was 1.81 x 10(-3). The FEA model incorporated four points of contact between the disc and the orifice ring to estimate the maximum principal stresses in the disc of the BSD heart valve. A linear pressure distribution averaging 130 mmHg was applied so that the finite element results gave a strain of 1.81 x 10(-3) at the gauge location as experimentally observed. RESULTS The largest stress in the Delrin disc of the BSD valve occurred when the occluder made four-point contact with the orifice ring struts. The resulting localized compressive stress on the inflow side could be as high as 42 ksi, assuming the Hertzian contact theory. The magnitude of tensile stresses were less, but were highest on the outlet surface opposite the point of contact. The highest tensile stress for an ungrooved disc was found to be 8.35 ksi, which was below the ultimate tensile strength and yield stress in flexure for Delrin. Therefore, it is unlikely that yielding or tensile failure will occur at this level of stress. Maximum tensile stresses were found to be 1.442 and 1.448 ksi for discs with single and multiple grooves respectively. CONCLUSION The model predicts that as a wear groove is created, the area of contact between the disc and the inlet strut of the BSD valve will increase, thereby reducing average compressive contact stress and hence, the wear rate.
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Affiliation(s)
- R M McMeeking
- Department of Mechanical and Environmental Engineering, University of California, Santa Barbara 93106, USA
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18
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Kaderbhai MA, He MY, Beechey RB, Kaderbhai N. Co-expression of a precursor and the mature protein of wheat ribulose-1,5-bisphosphate carboxylase small subunit from a single gene in Escherichia coli. DNA Cell Biol 1990; 9:11-25. [PMID: 2180428 DOI: 10.1089/dna.1990.9.11] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The cDNA encoding a precursor of wheat ribulose-1,5-bisphosphate carboxylase/oxygenase was inserted in-phase with prokaryotic expression elements in four different vectors. Five expression vectors encoding the small subunit precursors were cloned in Escherichia coli. None of these constructs expressed detectable amounts of the precursor protein, but all directed synthesis of the mature small subunit. The expression of the small subunit was a consequence of an independent, intragenic Shine-Dalgarno sequence optimally located upstream from an ATG specifying the first codon of the mature small subunit portion in the precursor transcript. Similar internal translation signals have been identified in the nuclear-encoded cDNAs of the small-subunit precursors of numerous higher plant genes. The 5' end of the wheat small-subunit precursor was linked with a consensus E. coli DNA sequence such that the modified gene encoded a partial hybrid precursor carrying four additional residues at its amino terminus. The resultant construct, pEI-W3, directed abundant synthesis of both the partially hybrid small-subunit precursor and the mature small subunit, constituting as much as 10% of the total bacterial protein. The bacterially synthesized small subunit precursor was purified to homogeneity. The authenticity of the recombinant protein was verified by its size, immunological properties, amino-terminal sequence, and amino acid composition.
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Affiliation(s)
- M A Kaderbhai
- Department of Biochemistry, University College of Wales, Aberystwyth, Dyfed, UK
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19
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Zhang MZ, He MY. [Synthesis of diacylhydrazides of 2-indole and their physiological activity]. Yao Xue Xue Bao 1984; 19:737-41. [PMID: 6443333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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