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Yang J, Zhang Y, Zhang Z, Ren M, Wang Y, Duan Y, Gao Y, Liu Z, Zhang P, Fan R, Zhou X. The development of an egg-soaking method for delivering dsRNAs into spider mites. Pestic Biochem Physiol 2024; 201:105905. [PMID: 38685227 DOI: 10.1016/j.pestbp.2024.105905] [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] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 05/02/2024]
Abstract
Recently, the first sprayable RNAi biopesticide, Ledprona, against the Colorado potato beetle, Leptinotarsa decemlineata, has been registered at the United States Environmental Protection Agency. Spider mites (Acari: Tetranychidae), a group of destructive agricultural and horticultural pests, are notorious for rapid development of insecticide/acaricide resistance. The management options, on the other hand, are extremely limited. RNAi-based biopesticides offer a promising control alternative to address this emerging issue. In this study, we i) developed an egg-soaking dsRNA delivery method; ii) evaluated the factors influencing RNAi efficiency, and finally iii) investigated the potential mode of entry of this newly developed egg-soaking RNAi method. In comparison to other dsRNA delivery methods, egg-soaking method was the most efficient, convenient/practical, and cost-effective method for delivering dsRNAs into spider mites. RNAi efficiency of this RNAi method was affected by target genes, dsRNA concentration, developmental stages, and mite species. In general, the hawthorn spider mite, Amphitetranychus viennensis, is more sensitive to RNAi than the two-spotted spider mite, Tetranychus urticae, and both of them have dose-dependent RNAi effect. For different life stages, egg and larvae are the most sensitive life stages to dsRNAs. For different target genes, there is no apparent association between the suppression level and the resultant phenotype. Finally, we demonstrated that this egg-soaking RNAi method acts as both stomach and contact toxicity. Our combined results demonstrate the effectiveness of a topically applied dsRNA delivery method, and the potential of a spray induced gene silencing (SIGS) method as a control alternative for spider mites.
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Affiliation(s)
- Jing Yang
- College of Plant Protection, Shanxi Agricultural University, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Taiyuan, Shanxi, China.
| | - Yuying Zhang
- College of Plant Protection, Shanxi Agricultural University, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Taiyuan, Shanxi, China
| | - Zhonghuan Zhang
- College of Plant Protection, Shanxi Agricultural University, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Taiyuan, Shanxi, China
| | - Meifeng Ren
- College of Plant Protection, Shanxi Agricultural University, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Taiyuan, Shanxi, China
| | - Yifei Wang
- College of Plant Protection, Shanxi Agricultural University, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Taiyuan, Shanxi, China
| | - Yuanpeng Duan
- College of Plant Protection, Shanxi Agricultural University, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Taiyuan, Shanxi, China
| | - Yue Gao
- College of Plant Protection, Shanxi Agricultural University, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Taiyuan, Shanxi, China
| | - Zhongfang Liu
- College of Plant Protection, Shanxi Agricultural University, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Taiyuan, Shanxi, China
| | - Pengjiu Zhang
- College of Plant Protection, Shanxi Agricultural University, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Taiyuan, Shanxi, China
| | - Renjun Fan
- College of Plant Protection, Shanxi Agricultural University, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Taiyuan, Shanxi, China
| | - Xuguo Zhou
- Department of Entomology, School of Integrative Biology, College of Liberal Arts & Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA..
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Wang Q, Xu F, Deng M, Ren M, Wang T, Wu D. [Antioxidant activity of Euryale ferox seed shell extract and its therapeutic effects on oral ulcer in rats]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:787-794. [PMID: 38708514 DOI: 10.12122/j.issn.1673-4254.2024.04.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
OBJECTIVE To investigate the therapeutic effect of Euryale ferox seed shell extract on oral ulcer in rats and its underlying mechanism. METHODS The contents of polyphenols and flavonoids in Euryale ferox seed shells were determined by Folin-phenol assay and aluminum nitrate colorimetry, respectively. DPPH·, ABTS+·, ·OH and·O2- scavenging experiments were performed to evaluate the antioxidant activities of Euryale ferox seed shell extract in vitro. In a rat model of oral ulcer induced by burning with glacial acetic acid, the therapeutic effect of Euryale ferox seed shell extract was assessed by detecting changes in serum levels of oxidative factors by enzyme-linked immunosorbent assay (ELISA) and observing pathological changes of the ulcerous mucosa using HE staining; the therapeutic mechanism of the extract was explored by detecting the expression levels of Keap1, Nrf2, Nes-Nrf2 and HO-1 proteins in ulcerous mucosa using Western blotting. RESULTS The ethyl acetate extract of Euryale ferox seed shells contained 306.74±1.04 mg/g polyphenols and 23.43±0.61 mg/g flavonoids and had IC50 values for scavenging DPPH· and ABTS+· free radicals of 3.42 ± 0.97 μg/mL and 3.32 ± 0.90 μg/mL, respectively. In the rat models, the ethyl acetate extract significantly ameliorated oral mucosal ulcer, increased serum CAT level, and decreased serum MDA level. The protein expression levels of Nes-Nrf2 and HO-1 were increased and Keap1 protein expression was lowered significantly in the ulcerous mucosa of the rats after treatment with the extract (P<0.05 or 0.01). CONCLUSION The therapeutic effect of Euryale ferox seed shell extract on oral ulcers in rats is mediated probably by activation of the Keap1/Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Q Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - F Xu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
- Anhui Provincial Key Laboratory of Chinese Medicine Research & Development, Hefei 230012, China
- Anhui Provincial Key Laboratory of New Manufacturing Technology for Traditional Chinese Medicine Decoction Pieces, Hefei 230012, China
| | - M Deng
- School of Integrated Traditional and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - M Ren
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - T Wang
- School of Integrated Traditional and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - D Wu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
- Anhui Provincial Key Laboratory of Chinese Medicine Research & Development, Hefei 230012, China
- Anhui Provincial Key Laboratory of New Manufacturing Technology for Traditional Chinese Medicine Decoction Pieces, Hefei 230012, China
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Ren M, Chan WX, Green L, Buist ML, Yap CH. Biventricular finite element modeling of the fetal heart in health and during critical aortic stenosis. Biomech Model Mechanobiol 2024:10.1007/s10237-024-01842-6. [PMID: 38589684 DOI: 10.1007/s10237-024-01842-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 03/15/2024] [Indexed: 04/10/2024]
Abstract
Finite Element simulations are a robust way of investigating cardiac biomechanics. To date, it has only been performed with the left ventricle (LV) alone for fetal hearts, even though results are likely different with biventricular (BiV) simulations. In this research, we conduct BiV simulations of the fetal heart based on 4D echocardiography images to show that it can capture the biomechanics of the normal healthy fetal heart, as well as those of fetal aortic stenosis better than the LV alone simulations. We found that performing LV alone simulations resulted in overestimation of LV stresses and pressures, compared to BiV simulations. Interestingly, inserting a compliance between the LV and right ventricle (RV) in the lumped parameter model of the LV only simulation effectively resolved these overestimations, demonstrating that the septum could be considered to play a LV-RV pressure communication role. However, stresses and strains spatial patterns remained altered from BiV simulations after the addition of the compliance. The BiV simulations corroborated previous studies in showing disease effects on the LV, where fetal aortic stenosis (AS) drastically elevated LV pressures and reduced strains and stroke volumes, which were moderated down with the addition of mitral regurgitation (MR). However, BiV simulations enabled an evaluation of the RV as well, where we observed that effects of the AS and MR on pressures and stroke volumes were generally much smaller and less consistent. The BiV simulations also enabled investigations of septal dynamics, which showed a rightward shift with AS, and partial restoration with MR. Interestingly, AS tended to enhance RV stroke volume, but MR moderated that down.
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Affiliation(s)
- Meifeng Ren
- Department of Biomedical Engineering, National University of Singapore, 4, Engineering Drive 3, E4-04-08, Singapore, 117583, Singapore
| | - Wei Xuan Chan
- Department of Bioengineering, Imperial College London, L2 Bessemer Building, South Kensington Campus, London, SW7 2AZ, UK
| | - Laura Green
- Department of Bioengineering, Imperial College London, L2 Bessemer Building, South Kensington Campus, London, SW7 2AZ, UK
| | - Martin L Buist
- Department of Biomedical Engineering, National University of Singapore, 4, Engineering Drive 3, E4-04-08, Singapore, 117583, Singapore.
| | - Choon Hwai Yap
- Department of Bioengineering, Imperial College London, L2 Bessemer Building, South Kensington Campus, London, SW7 2AZ, UK.
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Tang R, Xie Z, Ruan X, Zhang Z, Ren M, Wu J, Shu K, Shi H, Xie M, Lv S, Yang X, Chen R, Yu Q. Changes in menopausal symptoms comparing oral estradiol versus transdermal estradiol. Climacteric 2024; 27:171-177. [PMID: 37942806 DOI: 10.1080/13697137.2023.2273530] [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: 07/10/2023] [Accepted: 10/04/2023] [Indexed: 11/10/2023]
Abstract
OBJECTIVE This study aimed to compare the efficacy and safety of oral and transdermal estradiol in alleviating menopausal symptoms. METHOD A total of 257 recently menopausal women were randomized into two groups. The t-E2 group received transdermal estradiol (2.5 g per day) (n = 128) and the o-E2V group received oral estradiol valerate (2 mg per day) (n = 129) for 24 weeks; both groups received micronized progesterone (200 mg per day). The primary outcome measure is the change in the modified Kupperman Menopausal Index (KMI) after 24 weeks of treatment. Menopausal symptoms were recorded at screening and at 4, 12 and 24 weeks using both the KMI and the Menopause Rating Scale (MRS). RESULTS Significant amelioration was observed by KMI and MRS scores for both groups after treatment (p < 0.001). The mean KMI scores showed no difference between the two groups. The mean MRS scores were similar between the two groups at baseline and after 4 weeks of treatment. The results showed statistical differences after 12 weeks and 24 weeks of treatment (p = 0.005 and p = 0.011). Both the after-treatment scores minus the baseline scores of KMI and MRS and the incidence of adverse effects showed no difference between the two groups. CONCLUSIONS This study shows that both transdermal and oral estradiol are effective in relieving menopausal symptoms, with little difference in treatment efficacy and safety. CLINICAL TRIAL NUMBER ChiCTR2300073146.
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Affiliation(s)
- R Tang
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Z Xie
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Ruan
- Beijing Obstetrics and Gynaecology Hospital, Capital Medical University, Beijing, China
| | - Z Zhang
- Hangzhou Obstetrics and Gynecology Hospital, Hangzhou, China
| | - M Ren
- Zhongda Hospital affiliated to Southeast University, Nanjing, China
| | - J Wu
- Jiangsu Province Hospital, Jiangsu, China
| | - K Shu
- Jiangxi Maternal and Child Health Hospital, Jiangxi, China
| | - H Shi
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - M Xie
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - S Lv
- The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
| | - X Yang
- Peking University People's Hospital, Beijing, China
| | - R Chen
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Q Yu
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Hu J, Ren M, Cai X, Lyu JJ, Shen XX, Kong YY. [Clinicopathological and prognostic features of subungual melanoma in situ]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1006-1011. [PMID: 37805391 DOI: 10.3760/cma.j.cn112151-20230226-00152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To investigate the clinicopathological characteristics, immunohistochemical profiles, molecular features, and prognosis of subungual melanoma in situ (SMIS). Methods: Thirty cases of SMIS were collected in Fudan University Shanghai Cancer Center, Shanghai, China from 2018 to 2022. The clinicopathological characteristics and follow-up data were retrospectively analyzed. Histopathologic evaluation and immunohistochemical studies were carried out. By using Vysis melanoma fluorescence in situ hybridization (FISH) probe kit, combined with 9p21(CDKN2A) and 8q24(MYC) assays were performed. Results: There were 8 males and 22 females. The patients' ages ranged from 22 to 65 years (median 48 years). All patients presented with longitudinal melanonychia involving a single digit. Thumb was the most commonly affected digit (16/30, 53.3%). 56.7% (17/30) of the cases presented with Hutchinson's sign. Microscopically, melanocytes proliferated along the dermo-epithelial junction. Hyperchromatism and nuclear pleomorphism were two of the most common histological features. The melanocyte count ranged from 30 to 185. Most cases showed small to medium nuclear enlargement (29/30, 96.7%). Pagetoid spread was seen in all cases. Intra-epithelial mitoses were identified in 56.7% (17/30) of the cases. Involvement of nailfold was found in 19 cases, 4 of which were accompanied by cutaneous adnexal extension. The positive rates of SOX10, PNL2, Melan A, HMB45, S-100, and PRAME were 100.0%, 100.0%, 96.0%, 95.0%, 76.9%, and 83.3%, respectively. FISH analysis was positive in 6/9 of the cases. Follow-up data were available in 28 patients, and all of them were alive without disease. Conclusions: SMIS mainly shows small to medium-sized cells. High melanocyte count, hyperchromatism, nuclear pleomorphism, Pagetoid spreading, intra-epithelial mitosis, nailfold involvement, and cutaneous adnexal extension are important diagnostic hallmarks. Immunohistochemistry including SOX10 and PRAME, combined with FISH analysis, is valuable for the diagnosis of SMIS.
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Affiliation(s)
- J Hu
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - J J Lyu
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X X Shen
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
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Ren M, Lu J, Li D, Yang J, Zhang Y, Dong J, Niu Y, Zhou X, Zhang X. Identification and Functional Characterization of Two Chitin Synthases in the Black Cutworm, Agrotis ipsilon (Hufnagel) (Lepidoptera: Noctuidae). J Econ Entomol 2023; 116:574-583. [PMID: 36757382 DOI: 10.1093/jee/toac193] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Indexed: 05/30/2023]
Abstract
The black cutworm, Agrotis ipsilon (Hufnagel), a seasonal migrant and a prolific generalist, can feed on nearly all vegetables and grain crops, causing considerable economic impacts on a global scale. Given its cryptic nature, A. ipsilon management has been extremely challenging. Chitin synthase (CHS), a key enzyme involved in chitin biosynthetic pathway and crucially important for the growth and development of insects, is the molecular target of chitin synthesis inhibitors, a group of broad-spectrum insecticides that is compatible with Integrated Pest Management practices. In this study, we investigated the potential of targeting chitin synthases to control A. ipsilon. As a result, two chitin synthases, AiCHS1 and AiCHS2, were identified and cloned from A. ipsilon. The temporal-spatial distribution study showed that AiCHS1 was predominantly expressed at the pupal stage and most abundant among tissues of head capsule and integument, while AiCHS2 was mainly expressed at the sixth instar larval stage and tissues of foregut and midgut. RNAi-based functional study confirmed gene silencing caused significant reduction in the expression levels of the corresponding mRNA, as well as resulted in abnormal pupation and mortality, respectively. Furthermore, under the treatment of lufenuron, a chitin synthesis inhibitor, A. ipsilon responded with an elevated expression in AiCHS1 and AiCHS2, while larvae showed difficulty in shedding old cuticle, and a cumulative mortality of 69.24% at 48 h. In summary, chitin synthases are crucial for chitin biosynthesis in A. ipsilon and can be targeted for the control (e.g., RNAi-based biopesticides) of this devastating insect pest.
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Affiliation(s)
- Meifeng Ren
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
| | - Junjiao Lu
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
| | - Daqi Li
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
| | - Jing Yang
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
| | - Yuying Zhang
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Jinming Dong
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
| | - Yanbing Niu
- College of Life Sciences, Shanxi Agricultural University, Taigu, China
| | - Xuguo Zhou
- Department of Entomology, University of Kentucky, Lexington, KY, USA
| | - Xianhong Zhang
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
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Ren M, Chan WX, Green L, Armstrong A, Tulzer A, Tulzer G, Buist ML, Yap CH. Contribution of Ventricular Motion and Sampling Location to Discrepancies in Two-Dimensional Versus Three-Dimensional Fetal Ventricular Strain Measures. J Am Soc Echocardiogr 2023; 36:543-552. [PMID: 36623710 DOI: 10.1016/j.echo.2022.12.024] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 12/17/2022] [Accepted: 12/18/2022] [Indexed: 01/09/2023]
Abstract
BACKGROUND Echocardiographic quantification of fetal cardiac strain is important to evaluate function and the need for intervention, with both two-dimensional (2D) and three-dimensional (3D) strain measurements currently feasible. However, discrepancies between 2D and 3D measurements have been reported, the etiologies of which are unclear. This study sought to determine the etiologies of the differences between 2D and 3D strain measurements. METHODS A validated cardiac motion-tracking algorithm was used on 3D cine ultrasound images acquired in 26 healthy fetuses. Both 2D and 3D myocardial strain quantifications were performed on each image set for controlled comparisons. Finite element modeling of 2 left ventricle (LV) models with minor geometrical differences were performed with various helix angle configurations for validating image processing results. RESULTS Three-dimensional longitudinal strain (LS) was significantly lower than 2D LS for the LV free wall and septum but not for the right ventricular (RV) free wall, while 3D circumferential strain (CS) was significantly higher than 2D CS for the LV, RV, and septum. The LS discrepancy was due to 2D long-axis imaging not capturing the out-of-plane motions associated with LV twist, while the CS discrepancy was due to the systolic motion of the heart toward the apex that caused out-of-plane motions in 2D short-axis imaging. A timing mismatch between the occurrences of peak longitudinal and circumferential dimensions caused a deviation in zero-strain referencing between 2D and 3D strain measurements, contributing to further discrepancies between the 2. CONCLUSIONS Mechanisms for discrepancies between 2D and 3D strain measurements in fetal echocardiography were identified, and inaccuracies associated with 2D strains were highlighted. Understanding of this mechanism is useful and important for future standardization of fetal cardiac strain measurements, which we propose to be important in view of large discrepancies in measured values in the literature.
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Affiliation(s)
- Meifeng Ren
- Deparment of Biomedical Engineering, National University of Singapore, Singapore
| | - Wei Xuan Chan
- Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Laura Green
- Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Aimee Armstrong
- The Heart Center, Nationwide Children's Hospital, Columbus, Ohio
| | - Andreas Tulzer
- Department of Pediatric Cardiology, Kepler University Hospital, Linz, Austria
| | - Gerald Tulzer
- Department of Pediatric Cardiology, Kepler University Hospital, Linz, Austria
| | - Martin L Buist
- Deparment of Biomedical Engineering, National University of Singapore, Singapore
| | - Choon Hwai Yap
- Department of Bioengineering, Imperial College London, London, United Kingdom.
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Green L, Chan WX, Ren M, Mattar CNZ, Lee LC, Yap CH. The dependency of fetal left ventricular biomechanics function on myocardium helix angle configuration. Biomech Model Mechanobiol 2022; 22:629-643. [PMID: 36550241 PMCID: PMC10097781 DOI: 10.1007/s10237-022-01669-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/06/2022] [Indexed: 12/24/2022]
Abstract
The helix angle configuration of the myocardium is understood to contribute to the heart function, as finite element (FE) modeling of postnatal hearts showed that altered configurations affected cardiac function and biomechanics. However, similar investigations have not been done on the fetal heart. To address this, we performed image-based FE simulations of fetal left ventricles (LV) over a range of helix angle configurations, assuming a linear variation of helix angles from epicardium to endocardium. Results showed that helix angles have substantial influence on peak myofiber stress, cardiac stroke work, myocardial deformational burden, and spatial variability of myocardial strain. A good match between LV myocardial strains from FE simulations to those measured from 4D fetal echo images could only be obtained if the transmural variation of helix angle was generally between 110 and 130°, suggesting that this was the physiological range. Experimentally discovered helix angle configurations from the literature were found to produce high peak myofiber stress, high cardiac stroke work, and a low myocardial deformational burden, but did not coincide with configurations that would optimize these characteristics. This may suggest that the fetal development of myocyte orientations depends concurrently on several factors rather than a single factor. We further found that the shape, rather than the size of the LV, determined the manner at which helix angles influenced these characteristics, as this influence changed significantly when the LV shape was varied, but not when a heart was scaled from fetal to adult size while retaining the same shape. This may suggest that biomechanical optimality would be affected during diseases that altered the geometric shape of the LV.
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Affiliation(s)
- Laura Green
- Department of Bioengineering, Imperial College London, London, UK
| | - Wei Xuan Chan
- Department of Bioengineering, Imperial College London, London, UK
- BHF Centre of Research Excellence, Imperial College London, London, UK
| | - Meifeng Ren
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Citra Nurfarah Zaini Mattar
- Department of Obstetrics and Gynecology, National University Health Systems, Singapore, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lik Chuan Lee
- Department of Mechanical Engineering, Michigan State University, East Lansing, USA
| | - Choon Hwai Yap
- Department of Bioengineering, Imperial College London, London, UK.
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Li D, Zhang J, Yang Y, Liu J, Lu J, Ren M, Abbas M, Zhu KY, Zhang J. Identification and RNAi-based functional analysis of chitinase family genes in Agrotis ipsilon. Pest Manag Sci 2022; 78:4278-4287. [PMID: 35716091 DOI: 10.1002/ps.7047] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/29/2022] [Accepted: 06/18/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Chitin is a major component in the extracellular matrix of insects, and its metabolism largely affects insect development and molting. As essential degradative enzymes, chitinases are encoded by multiple genes that differ in size, expression pattern and function in insects. However, our limited knowledge on the functions of different chitinases in Agrotis ipsilon has prevented our application of new technologies to target these genes as new pest management strategies. RESULTS We revealed 11 full-length complementary DNA sequences of chitinase genes (AiChts) from A. ipsilon transcriptome. Although the domain architecture of these chitinases varied greatly, they all contained at least one chitinase catalytic domain. Developmental stage- and tissue-dependent expression profiles showed that most AiChts had the highest expression in the pupal stage. Furthermore, AiCht2, AiCht6, AiCht7 and AiCht10 were mainly expressed in the integument, whereas AiCht8 and AiCht-h had the highest expression in the midgut. The RNA interference (RNAi) experiment revealed that knockdown of AiCht10 or the imaginal disc growth factor gene (AiIDGF) induced high larval mortality. Larvae failed to shed the old cuticle during molting after the injection of double-stranded RNA targeting AiCht10 (dsAiCht10), whereas the larval bodies shrunk and blackened after the injection of dsRNA targeting AiIDGF (dsAiIDGF). CONCLUSION Our results revealed for the first time the important functions of AiCht10 and AiIDGF in A. ipsilon. These genes are essential for larval development, and can potentially serve as new targets for RNAi-based pest management. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Daqi Li
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
| | - Jianqin Zhang
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China
| | - Yang Yang
- Institute of Applied Biology, Shanxi University, Taiyuan, China
- Section of Animal Genetics, Interfaculty Institute of Cell Biology, University of Tübingen, Tübingen, Germany
| | - Jiao Liu
- Shanxi Center for Testing of Functional Agro-Products, Shanxi Agricultural University, Taiyuan, China
| | - Junjiao Lu
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
| | - Meifeng Ren
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
| | - Mureed Abbas
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China
| | - Kun Yan Zhu
- Department of Entomology, Kansas State University, Manhattan, KS, USA
| | - Jianzhen Zhang
- Institute of Applied Biology, Shanxi University, Taiyuan, China
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Bai J, Liu T, Ren M, Wang X. Neobavaisoflavone improves medial collateral ligament-induced osteoarthritis through repressing the nuclear factor -κB/hypoxia-inducible factor-2α axis. J Physiol Pharmacol 2022; 73. [PMID: 36942811 DOI: 10.26402/jpp.2022.5.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 08/30/2022] [Indexed: 03/23/2023]
Abstract
Osteoarthritis (OA) is a chronic inflammatory joint disease. There have been some studies on the treatment of OA with traditional Chinese medicine (TCM). Neobavaisoflavone (NBIF) is an isoflavone isolated from TCM Psoralea corylifolia L (also called 'Buguzhi') and shows anti-inflammatory effects. This study aims to explore the potential role of NBIF in treating OA. The rat chondrocytes were dealt with interleukin-1beta (IL-1β) for inducing an in-vitro OA model and a rat OA model was established by medial collateral ligament resection. Followed by NBIF treatment, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and flow cytometry were performed to evaluate chondrocyte proliferation and apoptosis. The expression of inflammatory factors and oxidative stress factors in chondrocyte medium and rat serum was tested by enzyme-linked immunosorbent assay (ELISA). Hematoxylin-eosin (HE) staining and Safranin O-Fast Green staining were carried out to examine the histopathological changes in knee joints. Caspase-3, nuclear factor-kappaB (NF-κB), and hypoxia-inducible factor-2alpha (HIF-2α) expressions were monitored by quantitative reverse transcription-polymerase chain reaction (qRT-PCR), Western blot, and/or immunohistochemistry. As indicated by the results, NBIF mitigated cartilage matrix degradation and chondrocyte apoptosis in the OA rat model. NBIF hampered IL-1β-mediated cell viability inhibition, apoptosis, inflammatory reactions, and oxidative stress of chondrocytes. Moreover, NBIF suppressed NF-κB phosphorylation and HIF-2α expression. HIF-2α overexpression induced inflammation, oxidative stress, and apoptosis in chondrocytes, while NBIF reversed HIF-2α overexpression-caused chondrocyte damage. Overall, NBIF had antiapoptotic, anti-inflammatory, and antioxidative stress effects in OA models by impeding NF-κB/HIF-2α axis, suggesting that NBIF has potential therapeutic effects in OA.
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Affiliation(s)
- J Bai
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - T Liu
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - M Ren
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - X Wang
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China.
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Ren M, Ong C, Buist ML, Yap CH. Biventricular biaxial mechanical testing and constitutive modelling of fetal porcine myocardium passive stiffness. J Mech Behav Biomed Mater 2022; 134:105383. [DOI: 10.1016/j.jmbbm.2022.105383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 07/02/2022] [Accepted: 07/15/2022] [Indexed: 11/15/2022]
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Zhang Y, Zhang Z, Ren M, Liu X, Zhou X, Yang J. Selection of Reference Genes for RT-qPCR Analysis in the Hawthorn Spider Mite, Amphitetranychus viennensis (Acarina: Tetranychidae), Under Acaricide Treatments. J Econ Entomol 2022; 115:662-670. [PMID: 35297479 DOI: 10.1093/jee/toac019] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Indexed: 05/26/2023]
Abstract
Hawthorn spider mite, Amphitetranychus viennensis Zacher, one of the most damaging arthropod pests for Rosaceaous fruit trees and ornamentals, has developed resistance to most of the commercially available acaricides. To understand the molecular basis of acaricide resistance, a standardized protocol for real-time quantitative reverse transcription PCR (RT-qPCR) following the MIQE (minimum information for publication of quantitative real time PCR experiments) guidelines is needed. In this study, we screened for the internal references in A. viennensis to study in acaricide resistance. In total, 10 candidate reference genes, including EF1A, 28S rRNA, 18S rRNA, α-tubulin, Actin3, RPS9, GAPDH, V-ATPase B, RPL13, and V-ATPase A, were assessed under the treatments of four commonly used acaricides with distinct mode-of-actions (MOAs). Based on the Insecticide Resistance Action Committee MOA classification, avermectin, bifenazate, spirodiclofen, and fenpropathrin belong to group 6, 20D, 23, and 3A, respectively. The expression profiles of these candidate genes were evaluated using geNorm, Normfinder, BestKeeper, and ∆Ct methods, respectively. Eventually, different sets of reference genes were recommended for each acaricide according to RefFinder, a comprehensive platform integrating all four above-mentioned algorithms. Specifically, the top three recommendations were 1) 28S, V-ATPase A, and Actin 3 for avermectin, 2) GAPDH, RPS9, and 28S for bifenazate, 3) Actin 3, V-ATPase B, and α-tubulin for spirodiclofen, and 4) Actin 3, α-tubulin, and V-ATPase A for fenpropathrin. Although unique sets of genes are proposed for each acaricide, α-tubulin, EF1A, and GAPDH are the most consistently stably expressed reference genes when A. viennensis was challenged chemically. Our findings lay the foundation for the study of acaricide resistance in the phytophagous mites in general, and in the hawthorn spider mite, A. viennensis, in particular.
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Affiliation(s)
- Yuying Zhang
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Zhonghuan Zhang
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
| | - Meifeng Ren
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
| | - Xiangying Liu
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Xuguo Zhou
- Department of Entomology, University of Kentucky, Lexington, KY,USA
| | - Jing Yang
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
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Ren M, Chen LX, Shu M, Li X, Li YY, Zhong XL, Zhu Y, Guo Q, Liao Q, Wen Y, Luo SH, Wan CM. [Relationship between nutritional factors and clinical outcome in children with tuberculous meningitis]. Zhonghua Er Ke Za Zhi 2022; 60:221-226. [PMID: 35240742 DOI: 10.3760/cma.j.cn112140-20210926-00827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the relationship between nutritional risk status and clinical outcome in children with tuberculous meningitis (TBM). Methods: The clinical data (basic information, clinical symptoms and laboratory test results) of 112 patients with TBM, who were admitted to Department of Pediatric Infectious Diseases of West China Second Hospital of Sichuan University,from January 2013 to December 2020 were retrospectively analyzed. The patients were divided into the nutritional risk group and the non-nutritional risk group according to the assessment of the nutritional risk by the STRONGkids Scale. The variables of basic information, clinical symptoms and laboratory test measurements etc. were compared between the two groups by using Student t test, Rank sum test or Chi-square test. Multivariate Logistic regression analysis were used to analyze nutritional risk factors. Results: Among 112 patient with TBM, 55 were males and 57 females. There were 62 cases in the nutritional risk group and 50 cases in the non-nutritional risk group. The proportion of cases with nutritional risk was 55.4% (62/112). Patients in the nutritional risk who lived in rural areas, had symptoms of brain nerve damage, convulsions, emaciation and anorexia, with a diagnosis time of ≥21 days, and the level of cerebrospinal fluid (CSF) protein were all higher than those in the non-nutritional risk group ((50 cases (80.6%) vs. 32 cases (64.0%), 20 cases (32.3%) vs.8 cases (16.0%), 33 cases (53.2%) vs. 15 cases (30.0%), 30 cases (48.4%) vs. 2 cases (4.0%), 59 cases (95.2%) vs. 1 case (2.0%),41 cases (66.1%) vs.18 cases (36.0%), 1 406 (1 079, 2 068) vs. 929 (683, 1 208) mg/L, χ2=3.91, 3.90, 6.10, 26.72, 98.58, 10.08, Z=4.35, all P<0.05). The levels of serum albumin,hemoglobin,lymphocyte count, white blood cell count, and CSF glucose were significantly lower in patients with nutritional risk ((36±5) vs. (41±4) g/L, (110±17) vs. (122±14) g/L, 1.4 (1.0, 2.0)vs. 2.3 (1.6, 3.8)×109/L, 7.8 (6.3, 10.0)×109 vs. 10.0 (8.3, 12.8)×109/L, 1.0 (0.8, 1.6) vs. 2.1 (1.3, 2.5) mmol/L, t=-6.15, -4.22, Z=-4.86, -3.92, -4.16, all P<0.05).Increased levels of serum albumin (OR=0.812, 95%CI:0.705-0.935, P=0.004) and lymphocyte count (OR=0.609, 95%CI:0.383-0.970, P=0.037) may reduce the nutritional risk of children with TBM; while convulsions (OR=3.853, 95%CI:1.116-13.308, P=0.033) and increased level of CSF protein (OR=1.001,95%CI:1.000-1.002, P=0.015) may increase the nutritional risk of children with TBM. Similarly, the rate of complications and drug-induced liver injury was higher in the nutritional risk group (47 cases (75.8%) vs. 15 cases(30.0%), 31 cases (50.0%) vs.8 cases (16.0%), χ2=23.50, 14.10, all P<0.05). Moreover, the length of hospital stay was also longer in the nutritional risk group ((27±13) vs. (18±7) d, t=4.38, P<0.05). Conclusions: Children with TBM have a high incidence of nutritional risk. Convulsive, the level of serum albumin, the level of lymphocyte count and CSF protein may affect the nutritional risk of children with TBM. The nutritional risk group has a high incidence of complications and heavy economic burden.It is necessary to carry out nutritional screening and nutritional support for children with TBM as early as possible.
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Affiliation(s)
- M Ren
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - L X Chen
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - M Shu
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - X Li
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Y Y Li
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - X L Zhong
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Y Zhu
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Q Guo
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Q Liao
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Y Wen
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - S H Luo
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - C M Wan
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
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Narayan A, Reyes FA, Ren M, Haoyong Y. Real-Time Hierarchical Classification of Time Series Data for Locomotion Mode Detection. IEEE J Biomed Health Inform 2021; 26:1749-1760. [PMID: 34410932 DOI: 10.1109/jbhi.2021.3106110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Accurate real-time estimation of motion intent is critical for rendering useful assistance using wearable robotic prosthetic and exoskeleton devices during user-initiated motions. We aim to evaluate hierarchical classification as a strategy for real-time locomotion mode recognition for the control of wearable robotic prosthetics and exoskeletons during user-intiated motions. METHODS We collect motion data from 8 subjects using a set of 7 inertial sensors for 16 lower limb locomotion modes of different specificities. A CNN based hierarchical classifier is trained to classify the modes into a specified label hierarchy. We measure the accuracy, stability, behaviour during mode transitions and suitability for real-time inference of the classifier. RESULTS The method achieves stable classification of locomotion modes using 1280 ms of time history data. It achieves average classification accuracy of 94.34% and an average AU(PRC) of 0.773 - comparable to similar classifiers. The method produces more informative classifications at transitions between modes. Less specific classes are classified earlier than more specific classes in the hierarchy. The inference step of the classifier can be executed in less than 2 ms on embedded hardware, indicating suitability for real-time operation. CONCLUSION Hierarchical classification can achieve accurate detection of locomotion modes and can break up mode transitions into multiple transitions between modes of different specificity. SIGNIFICANCE Multi-specific hierarchical classification of locomotion modes could lead to smoother, more fine grained control adaptation of wearable robots during locomotion mode transitions.
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Ren M, Ruan X, Gu L, Pexman-Fieth C, Kahler E, Yu Q. Ultra-low-dose estradiol and dydrogesterone: a phase III study for vasomotor symptoms in China. Climacteric 2021; 25:286-292. [PMID: 34402360 DOI: 10.1080/13697137.2021.1956894] [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: 10/20/2022]
Abstract
OBJECTIVE This study aimed to evaluate the efficacy and safety of ultra-low-dose estradiol plus dydrogesterone for vasomotor symptoms in postmenopausal women in China (trial registration CTR20160689). METHODS A total of 332 patients were randomized to continuous combined estradiol 0.5 mg + dydrogesterone 2.5 mg or placebo for 12 weeks. The primary efficacy endpoint was change in the number of hot flushes per day from baseline to end of treatment. Secondary efficacy endpoints included change in the number of moderate-to-severe hot flushes per day, menopausal symptoms from baseline and quality of life. RESULTS Between baseline and end of treatment, change in the mean number of hot flushes per day was -5.9 (95% confidence interval [CI] - 6.6, -5.2) with estradiol + dydrogesterone and -4.5 (95% CI -5.1, -3.8) with placebo, with a mean difference of -1.4 hot flushes per day (95% CI -2.2, -0.7; p < 0.001). Significant differences in favor of estradiol + dydrogesterone were also observed in several secondary efficacy endpoints. The study treatment was well tolerated. CONCLUSION Continuous combined estradiol 0.5 mg + dydrogesterone 2.5 mg reduced hot flushes in postmenopausal women in China. This ultra-low-dose regimen provides an additional option for women experiencing the vasomotor symptoms of menopause. These data are consistent with previous results in other populations.
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Affiliation(s)
- M Ren
- Department of Obstetrics and Gynecology, Zhongda Hospital Southeast University, Nanjing, People's Republic of China
| | - X Ruan
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, People's Republic of China
| | - L Gu
- Department of Gynecology, Nanjing Maternity and Child Health Care Hospital, Nanjing, People's Republic of China
| | - C Pexman-Fieth
- Global Clinical Development, Established Pharmaceuticals Division, Abbott GmbH, Wiesbaden, Germany
| | - E Kahler
- Global Biometrics, Established Pharmaceuticals Division, Abbott Laboratories GmbH, Hannover, Germany
| | - Q Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, People's Republic of China
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Huynh J, Cho M, Kim E, Ren M, Amaya-Chanaga C, Vogel A. P-78 Post hoc analysis in patients with unresectable hepatocellular carcinoma who progressed to Child-Pugh B liver function in the phase 3 REFLECT study of lenvatinib vs sorafenib. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Ren M, Sidiropoulou E, Tasakis RN, Donato E, Gonzalez‐Menendez I, Busse CE, Luck TJ, Dolnik A, Bullinger L, Trumpp A, Quintanilla‐Martinez L, Kreuz M, Chapuy B, Hübschmann D, Siebert R, Papavasiliou FN, Sander S. CYTIDINE DEAMINASES SHAPE THE GENOME OF GERMINAL CENTER B CELL DERIVED LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.18_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M. Ren
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Division of Adaptive Immunity and Lymphoma Heidelberg Germany
| | - E. Sidiropoulou
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Division of Adaptive Immunity and Lymphoma Heidelberg Germany
| | - R. N. Tasakis
- German Cancer Research Center (DKFZ) Division of Immune Diversity Heidelberg Germany
| | - E. Donato
- German Cancer Research Center (DKFZ) and DKFZ‐ZMBH Alliance Division of Stem Cells and Cancer Heidelberg Germany
| | - I. Gonzalez‐Menendez
- Eberhard Karls University of Tübingen and Comprehensive Cancer Center Tübingen University Hospital Institute of Pathology and Neuropathology Department of Pathology Tübingen Germany
| | - C. E Busse
- German Cancer Research Center (DKFZ) Division of B cell Immunology Heidelberg Germany
| | - T. J Luck
- Campus Virchow Klinikum Berlin Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Hematology, Oncology, and Tumorimmunology Berlin Germany
| | - A. Dolnik
- Campus Virchow Klinikum Berlin Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Hematology, Oncology, and Tumorimmunology Berlin Germany
| | - L. Bullinger
- Campus Virchow Klinikum Berlin Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Hematology, Oncology, and Tumorimmunology Berlin Germany
| | - A. Trumpp
- German Cancer Research Center (DKFZ) and DKFZ‐ZMBH Alliance Division of Stem Cells and Cancer Heidelberg Germany
| | - L. Quintanilla‐Martinez
- Eberhard Karls University of Tübingen and Comprehensive Cancer Center Tübingen University Hospital Institute of Pathology and Neuropathology Department of Pathology Tübingen Germany
| | - M. Kreuz
- Universität Leipzig Institute for Medical Informatics Statistics and Epidemiology (IMISE) Leipzig Germany
| | - B. Chapuy
- University Medical Center Göttingen Department of Hematology and Medical Oncology Göttingen Germany
| | - D. Hübschmann
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH) Heidelberg Germany
| | - R. Siebert
- Ulm University and Ulm University Medical Center Department of Human Genetics Ulm Germany
| | - F N. Papavasiliou
- German Cancer Research Center (DKFZ) Division of Immune Diversity Heidelberg Germany
| | - S. Sander
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Division of Adaptive Immunity and Lymphoma Heidelberg Germany
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Hu J, Ren M, Cai X, Shen XX, Dai B, Kong YY. [Clinicopathological features and prognosis of nodal nevi]. Zhonghua Bing Li Xue Za Zhi 2021; 50:494-499. [PMID: 33915657 DOI: 10.3760/cma.j.cn112151-20200817-00648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinicopathological characteristics, differential diagnosis and prognosis of nodal nevi (NN). Methods: Eighteen cases of NN diagnosed at Fudan University Shanghai Cancer Center, Shanghai, China from 2009 to 2019 were collected. The clinicopathological characteristics and follow-up data were retrospectively analyzed. Histopathologic evaluation and immunohistochemical studies were carried out. The Vysis Melanoma FISH Probe Kit, combined with 9p21(CDKN2A) and 8q24(MYC) assays were performed in 2 cases. Results: There were 2 males and 16 females in the case series. The age of the patients ranged from 36 to 70 years (average 48.2 years). Fifteen cases located in axillary lymph nodes, 1 in inguinal lymph node, 1 in cervical lymph node, and 1 in external iliac lymph node. NN was found in only one lymph node in each case. Histologically, the nevus cell aggregates were found in capsule of lymph nodes in all cases. Nevus cells grew along the capsule into trabeculae in 8 cases, with 3 of them scattered in parenchyma. In one of these 8 cases, nevus cell aggregates massively occupied the parenchyma of the lymph node. The largest lesions in the 18 NN cases measured from 0.2 to 6.5 mm. All of the NN cases were classified as conventional nevi. The majority of the cases were composed of uniform nevus-like cells and identical to cutaneous pigmented nevi without atypia, necrosis, or mitosis. In the NN case that massively occupied parenchyma, some areas had abundant nevus cells and displayed atypical cytologic features, including increased nucleo-cytoplasmic ratio, small nucleoli, and occasional mitotic figures. Immunohistochemistry was performed in 13 cases. All of them were positive for S-100, SOX10, Melan A, and p16. HMB45 showed weak staining in rare cells of only one case out of 13 cases. Ki-67 labeling index <1% was found in all 13 cases. Additionally, the results of FISH assay were both negative. All patients were followed up for 13 to 129 months (median 31.5 months). Except that one patient died of the salivary gland carcinoma, the other patients all survived without tumor during the follow-up period. Conclusions: NN is a benign melanocytic lesion in lymph node. It is important to distinguish NN from metastatic melanoma when nevus cells occur in parenchyma and subcapsular sinus of lymph nodes, or show some atypical cytologic features. The morphology of bland nevus cells in capsule and trabeculae is a valuable clue. Besides, immunohistochemical profiling and FISH assay are helpful in the differential diagnosis.
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Affiliation(s)
- J Hu
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X X Shen
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - B Dai
- Department of Urology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
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Zhang ZC, Hu J, Kong YY, Ren M, Cai X. [Application of immunohistochemical staining of bcl-2, Ber-EP4, CD10, CK20, and Ki-67 in differential diagnosis between trichoblastoma and basal cell carcinoma]. Zhonghua Bing Li Xue Za Zhi 2021; 50:376-381. [PMID: 33831998 DOI: 10.3760/cma.j.cn112151-20200722-00587] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the utility of immunohistochemistry (IHC) in differential diagnosis between trichoblastoma (TB) and basal cell carcinoma (BCC). Methods: Fifty-eight cases of TB and 40 cases of BCC were collected at Fudan University Shanghai Cancer Center from January 2009 to December 2019 and retrospectively analyzed by IHC for bcl-2, Ber-EP4, CD10, CK20 and Ki-67. Fisher exact test was performed for statistical analysis. Results: Twenty-five (43.1%) TBs and 5 (12.5%) BCCs showed bcl-2 staining in the outermost layer of the epithelial nests, the difference was statistically significant (P<0.01). The proportion of cases with bcl-2 staining>75% of epithelial cells in BCC group was much higher than that in TB group (40% vs. 12.1%; P<0.01). BCC group showed larger proportions with Ber-EP4 staining>75%, 51%-75% of epithelial cells than TB group (12.5% vs. 1.7%, 37.5% vs. 8.6%;P<0.05). Fifty-five (94.8%) TBs demonstrated CD10 expression in the follicular stroma, while only 16 (40.0%) BCCs showed focal or scattered CD10 expression in reactive fibrous stroma (P<0.01). CK20 expression was present in 37 (63.8%) TBs with scattered pattern, but BCCs exhibited no CK20 staining except for only one case (2.5%) showing focal staining (P<0.01). Compared with TB group, the BCC group included more cases with Ki-67 labeling index ≥15% on average and ≥25% in hotspot areas (P<0.05). Conclusion: IHC is helpful in differential diagnosis between TB and BCC. Scattered CK20 staining pattern and stromal CD10 expression support the diagnosis of TB. Bcl-2 staining limited to the outermost layer of the proliferation is more likely to be found in TB. In contrast, Ber-EP4 positivity and higher Ki-67 labeling index tend to be present in BCC.
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Affiliation(s)
- Z C Zhang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - J Hu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
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Ong CW, Ren M, Wiputra H, Mojumder J, Chan WX, Tulzer A, Tulzer G, Buist ML, Mattar CNZ, Lee LC, Yap CH. Biomechanics of Human Fetal Hearts with Critical Aortic Stenosis. Ann Biomed Eng 2020; 49:1364-1379. [PMID: 33175989 PMCID: PMC8058006 DOI: 10.1007/s10439-020-02683-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/26/2020] [Indexed: 12/11/2022]
Abstract
Critical aortic stenosis (AS) of the fetal heart causes a drastic change in the cardiac biomechanical environment. Consequently, a substantial proportion of such cases will lead to a single-ventricular birth outcome. However, the biomechanics of the disease is not well understood. To address this, we performed Finite Element (FE) modelling of the healthy fetal left ventricle (LV) based on patient-specific 4D ultrasound imaging, and simulated various disease features observed in clinical fetal AS to understand their biomechanical impact. These features included aortic stenosis, mitral regurgitation (MR) and LV hypertrophy, reduced contractility, and increased myocardial stiffness. AS was found to elevate LV pressures and myocardial stresses, and depending on severity, can drastically decrease stroke volume and myocardial strains. These effects are moderated by MR. AS alone did not lead to MR velocities above 3 m/s unless LV hypertrophy was included, suggesting that hypertrophy may be involved in clinical cases with high MR velocities. LV hypertrophy substantially elevated LV pressure, valve flow velocities and stroke volume, while reducing LV contractility resulted in diminished LV pressure, stroke volume and wall strains. Typical extent of hypertrophy during fetal AS in the clinic, however, led to excessive LV pressure and valve velocity in the FE model, suggesting that reduced contractility is typically associated with hypertrophy. Increased LV passive stiffness, which might represent fibroelastosis, was found to have minimal impact on LV pressures, stroke volume, and wall strain. This suggested that fibroelastosis could be a by-product of the disease progression and does not significantly impede cardiac function. Our study demonstrates that FE modelling is a valuable tool for elucidating the biomechanics of congenital heart disease and can calculate parameters which are difficult to measure, such as intraventricular pressure and myocardial stresses.
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Affiliation(s)
- Chi Wei Ong
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Meifeng Ren
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Hadi Wiputra
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Joy Mojumder
- Department of Mechanical Engineering, Michigan State University, East Lansing, United States
| | - Wei Xuan Chan
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Andreas Tulzer
- Department of Pediatric Cardiology, Children's Heart Center Linz, Kepler University Hospital, Linz, Austria
| | - Gerald Tulzer
- Department of Pediatric Cardiology, Children's Heart Center Linz, Kepler University Hospital, Linz, Austria
| | - Martin Lindsay Buist
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Citra Nurfarah Zaini Mattar
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore, Singapore
| | - Lik Chuan Lee
- Department of Mechanical Engineering, Michigan State University, East Lansing, United States
| | - Choon Hwai Yap
- Department of Bioengineering, Imperial College London, London, UK.
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Yin WZ, Yang QW, Niu K, Ren M, He D, Song WZ. Validation of reference genes for the normalization of RT-qPCR expression studies on human laryngeal cancer and hypopharyngeal cancer. Eur Rev Med Pharmacol Sci 2020; 23:4199-4209. [PMID: 31173291 DOI: 10.26355/eurrev_201905_17924] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Selecting stably expressed reference genes is crucial for evaluating real-time quantitative polymerase chain reaction (RT-qPCR) data via the relative quantification method. In the present-day study, our aim was to select optimal reference genes (RGs) for the investigation of target gene (TG) expression profiling in cancerous human laryngeal and hypopharyngeal tissues. PATIENTS AND METHODS 12 cancerous laryngeal tissues and 10 cancerous hypopharyngeal tissues were investigated. The expression characteristics of 11 reference genes (18S rRNA, GAPDH, B2M, ACTB, TBP, ALAS1, RPL29, HMBS, HPRT1, GUSB, and PUM1), which were commonly used in RT-qPCR for the analysis of gene expression, were investigated using the geNorm, NormFinder, and BestKeeper algorithm programs. RESULTS HMBS, ALAS1, and B2M were suggested as optimal RGs for studying human laryngeal and hypopharyngeal cancerous tissues together, laryngeal cancerous tissue by itself, and hypopharyngeal cancerous tissue by itself, respectively. If 2 or more reference genes are needed to achieve better standardization, 3 reference genes can optimally be used in combination to improve the accuracy of relative quantitation normalization. The recommended combinations for studying human laryngeal and hypopharyngeal cancerous tissues together, laryngeal cancerous tissue by itself, and hypopharyngeal cancerous tissue by itself were HMBS + HPRT1 + GUSB, ALAS1 + GUSB + HMBS, and B2M + HPRT1 + TBP, respectively. CONCLUSIONS The recommended reference genes could be used to improve the accuracy of gene expression studies on the molecular mechanisms of cancerous human laryngeal and hypopharyngeal tissues. The selected combination of reference genes can effectively improve the accuracy of the relative quantitative diagnosis of gene expression levels, such as messenger RNA, circular RNA, and long-noncoding RNA.
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Affiliation(s)
- W-Z Yin
- Department of Otorhinolaryngology, Head and Neck Surgery, First Clinical Hospital, Jilin University, Changchun, China.
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Lee CH, Adachi Y, Ikezawa H, Li S, Funahashi Y, Minoshima Y, Kubiak P, Perini R, Ren M, Smith A, Motzer R. 719P Correlative serum biomarker analyses: Lenvatinib (LEN) plus pembrolizumab (PEMBRO) in a phase Ib/II trial in advanced renal cell carcinoma (RCC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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23
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Yan X, Lu J, Ren M, He Y, Wang Y, Wang Z, He K. Insecticidal Activity of 11 Bt toxins and 3 Transgenic Maize Events Expressing Vip3Aa19 to Black Cutworm, Agrotis ipsilon (Hufnagel). Insects 2020; 11:insects11040208. [PMID: 32230856 PMCID: PMC7240488 DOI: 10.3390/insects11040208] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/26/2020] [Accepted: 03/26/2020] [Indexed: 11/23/2022]
Abstract
Black cutworm (BCW), Agrotis ipsilon (Hufnagel), is an occasional pest of maize that can cause considerable economic loss and injury to corn seedlings. This research mainly assessed the susceptibility of BCW neonates to 11 Bt toxins (Cry1Ab, Cry1Ac, Cry1Ah, Cry1F, Cry1Ie, Cry1B, Cry2Aa, Vip3_ch1, Vip3_ch4, Vip3Ca2, Vip3Aa19) by exposing neonates to an artificial diet containing Bt toxins and evaluated the efficacy of three transgenic maize events (C008, C009, C010) expressing Vip3Aa19 toxin against BCW. The toxin-diet bioassay data indicated that Vip3Aa19 protein (LC50 = 0.43 μg/g) was the most active against BCW. Chimeric protein Vip3_ch1 (LC50 = 5.53 μg/g), Cry1F (LC50 = 83.62 μg/g) and Cry1Ac (LC50 = 184.77 μg/g) were less toxic. BCW was very tolerant to the other Bt toxins tested, with LC50 values more than 200 μg/g. Greenhouse studies were conducted with artificial infestations at the whorl stage by placing second-instar BCW larvae into whorl leaf and the fourth-instar larvae at the base of maize seedings. These results suggest that these transgenic maize events expressing Vip3Aa19 can provide effective control for BCW.
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Affiliation(s)
- Xiaorui Yan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.Y.); (Z.W.)
| | - Junjiao Lu
- Institute of Plant Protection, Shanxi Academy of Agricultural Sciences, Taiyuan 030031, Shanxi, China; (J.L.); (M.R.)
| | - Meifeng Ren
- Institute of Plant Protection, Shanxi Academy of Agricultural Sciences, Taiyuan 030031, Shanxi, China; (J.L.); (M.R.)
| | - Yin He
- Department of Physical Medicine and Rehabilitation, University of Alabama, Birmingham, AL 35401, USA;
| | - Yueqin Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.Y.); (Z.W.)
- Correspondence: (Y.W.); (K.H.); Tel./Fax: +86-10-6281-5932
| | - Zhenying Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.Y.); (Z.W.)
| | - Kanglai He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.Y.); (Z.W.)
- Correspondence: (Y.W.); (K.H.); Tel./Fax: +86-10-6281-5932
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Chen J, Liu S, Tang Y, Zhang X, Cao M, Xiao Z, Ren M, Chen T. Diagnostic performance of CT for differentiating peritoneal tuberculosis from peritoneal carcinomatosis: a systematic review and meta-analysis. Clin Radiol 2020; 75:396.e7-396.e14. [PMID: 32081347 DOI: 10.1016/j.crad.2019.12.014] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/12/2019] [Indexed: 01/01/2023]
Abstract
AIM To undertake a systematic review and meta-analysis of the diagnostic performance of CT for differentiating peritoneal tuberculosis (PTB) from peritoneal carcinomatosis (PC). MATERIAL AND METHODS PubMed, Embase, the Web of Science, and the Cochrane Library were searched for papers published before 23 July 2019. The methodological quality of the studies was analysed. Overlapping descriptors used in different studies to denote the same image finding were subsumed under a single CT feature. Sensitivity, specificity, and positive and negative likelihood ratios were pooled. A summary receiver operating characteristic curve (sROC) was constructed and the area under the curve (AUC) of the included studies was calculated when possible. RESULTS Six studies were included and 17 CT features were analysed. The pooled sensitivity and specificity of smooth peritoneal thickening were 59% (95% CI: 52-66%) and 84% (95% CI: 79-88%), respectively. The AUC of smooth peritoneal thickening was 0.83. Omentum line/rim, lymph node necrosis or calcification, and mesenteric macro nodules had a pooled specificity ranging from 95% to 100% and a pooled sensitivity ranging from 12% to 67%. The other 12 signs had a pooled sensitivity ranging from 21% to 79% and a pooled specificity ranging from 19% to 81%. Omentum involvement (cake-like pattern) showed a threshold-effect, so only the AUC (=0.70) was calculated. CONCLUSIONS Smooth peritoneal thickening shows fairly good diagnostic accuracy, while omentum rim/line, lymph nodes necrosis or calcification, mesenteric macro nodules have good specificity but limited sensitivity. The informative features summarised in this study may aid clinical practice and future studies.
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Affiliation(s)
- J Chen
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China.
| | - S Liu
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - Y Tang
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - X Zhang
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - M Cao
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - Z Xiao
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - M Ren
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - T Chen
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
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Tahara M, Kiyota N, Hoff A, Badiu C, Owonikoko T, Dutcus C, Suzuki T, Ren M, Misir S, Wirth L. Impact of lung metastasis on overall survival (OS) in the phase III SELECT study with lenvatinib (LEN) in patients (pts) with radioiodine refractory differentiated thyroid cancer (RR-DTC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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26
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Reich K, Blauvelt A, Armstrong A, Langley R, de Vera A, Kolbinger F, Spindeldreher S, Ren M, Bruin G. Secukinumab, a fully human anti‐interleukin‐17A monoclonal antibody, exhibits low immunogenicity in psoriasis patients treated up to 5 years. J Eur Acad Dermatol Venereol 2019; 33:1733-1741. [DOI: 10.1111/jdv.15637] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/01/2019] [Indexed: 01/11/2023]
Affiliation(s)
- K. Reich
- Translational Research in Inflammatory Skin Diseases Institute for Health Services Research in Dermatology and Nursing University Medical Center Hamburg‐Eppendorf Hamburg Germany
- Skinflammation® Center Hamburg Germany
- Dermatologikum Berlin BerlinGermany
| | - A. Blauvelt
- Oregon Medical Research Center Portland OR USA
| | - A. Armstrong
- Keck School of Medicine University of Southern California Los Angeles CA USA
| | - R.G. Langley
- Division of Clinical Dermatology and Cutaneous Science Dalhousie University Halifax Nova Scotia Canada
| | | | - F. Kolbinger
- Novartis Institutes for Biomedical Research Basel Switzerland
| | | | - M. Ren
- China Novartis Institutes for Biomedical Research Shanghai China
| | - G. Bruin
- Novartis Institutes for Biomedical Research Basel Switzerland
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Feng Z, Chen Q, Ren M, Tian Z, Gong Y. CD40L inhibits cell growth of THP-1 cells by suppressing the PI3K/Akt pathway [Corrigendum]. Onco Targets Ther 2019; 12:4223. [PMID: 31213840 PMCID: PMC6549415 DOI: 10.2147/ott.s213952] [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] [Received: 04/30/2019] [Accepted: 04/30/2019] [Indexed: 11/23/2022] Open
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Ren M, Wu F, Wang D, Li LY, Chang JJ, Lin Q. Molecular Typing of Cryptosporidium Species Identified in Fecal Samples of Yaks ( Bos grunniens) of Qinghai Province, China. J Parasitol 2019; 105:195-198. [PMID: 30835169] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
The frequency of Cryptosporidium infection in yaks from Qinghai province, People's Republic of China, was determined from examination of 1,027 fecal samples collected from 979 adult yaks and 48 yak calves during 4 seasons from 7 geographic areas within the province. PCR amplification of extracted DNA was used to characterize the different species of Cryptosporidium oocysts isolated by fecal examination. Twenty-six (2.53%) positive samples were identified and successfully sequenced: 17 Cryptosporidium ryanae (65.38%), 8 Cryptosporidium bovis (30.77%), and 1 Cryptosporidium baileyi (3.85%). The results of the study indicate that autumn is the primary season for transmission of Cryptosporidium to susceptible yak calves given the favorable temperatures and higher altitude of Qinghai province. To our knowledge, C. baileyi, a species predominately associated with birds (avian hosts), is described for the first time in yaks.
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Affiliation(s)
- M Ren
- 1 State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - F Wu
- 3 College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
| | - D Wang
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - L Y Li
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - J J Chang
- 4 College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
| | - Q Lin
- 1 State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
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Ren J, Ren M, Kong YY, Cai X, Kong JC. [Clinicopathological features and prognosis of ALK-positive Spitz tumors]. Zhonghua Bing Li Xue Za Zhi 2019; 48:215-219. [PMID: 30831648 DOI: 10.3760/cma.j.issn.0529-5807.2019.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinicopathologic features and prognosis of ALK-positive Spitz tumors. Methods: Thirteen patients with ALK-positive Spitz tumors diagnosed at Shanghai Cancer Center, Fudan University from October 2016 to December 2017 were collected. All cases were routinely evaluated histopathological features in HE staining and detected ALK protein expression by immunohistochemistry. The ALK fusions of 7 cases were confirmed by fluorescence in situ hybridization (FISH).Follow-up data was collected. Results: The age of patients including 2 males and 11 females ranged from 4 to 47 years (mean 25 years). 12 patients were diagnosed with atypical Spitz tumors and 1 patient was diagnosed with Spitz nevus. Clinically, most lesions presented as papules or nodules, while a few lesions presented as plaques. Histologically, most tumors were exophytic (9/13). More than half of the tumors were amelanotic and the junctional component was mainly composed of melanocytic nests. Kamino bodies were not found. The bases of the tumors were mainly wedge-shaped (5/13) and flat (7/13). Eight tumors displayed mixed cell types, while 5 tumors were composed of only spindle cells. All the tumors showed a plexiform and/or intersecting fascicular growth pattern, and perineural extension was observed in 3 tumors. ALK immunohistochemistry showed diffuse and intense cytoplasmic staining in 13 cases, and 7 of them were detected by FISH to confirm the presence of ALK fusions. All patients were followed up for 7 to 21 months (median=12), with no recurrence or lymph node dissemination. Conclusions: Spitz tumors with ALK fusions have their special histopathologic features.ALK fusions mainly occur in Spitz nevi and atypical Spitz tumors. The follow-up data of the existing literatures and our research indicates that the prognosis of ALK-positive Spitz tumors may be good.
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Affiliation(s)
- J Ren
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - J C Kong
- Clinical Pathological Diagnosis Center of Fudan University, Shanghai 200032, China
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Ren M, Wu F, Wang D, Li LY, Chang JJ, Lin Q. Molecular Typing of Cryptosporidium Species Identified in Fecal Samples of Yaks (Bos Grunniens) of Qinghai Province, China. J Parasitol 2019. [DOI: 10.1645/18-62] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- M. Ren
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
| | - F. Wu
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
| | - D. Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - L. Y. Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - J. J. Chang
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
| | - Q. Lin
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
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Ren M, Kong YY, Shen XX, Cai X, Kong JC. [Lentigo maligna and lentigo maligna melanoma: a clinicopathologic analysis of twenty-four cases]. Zhonghua Bing Li Xue Za Zhi 2018; 47:769-774. [PMID: 30317732 DOI: 10.3760/cma.j.issn.0529-5807.2018.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the clinicopathologic features, differential diagnosis and prognosis of lentigo maligna (LM) and lentigo maligna melanoma (LMM). Methods: Histopathologic evaluation and immunohistochemical study by HRP multimer method were carried out in 24 cases of LM and LMM from 2012 to 2017 at Fudan University Shanghai Cancer Center. The clinical information and follow-up data were analyzed. Results: Of total 24 cases, there were 7 cases of LM and 17 cases of LMM; 10 males and 14 females. The age of patients ranged from 32 to 88 years (mean 67 years). The male-to-female ratio was 1.0∶1.4. Tumors were all located on head and face. Clinically, all patients presented with mottled light brown or sepia macule located on head and face for a long time, and some of them followed by nodules or ulceration within the lesion. The diameter of lesions ranged from 0.5 to 3.0 cm. Microscopically, LM and in-situ component of LMM were all characterized by a predominantly junctional proliferation of atypical melanocytes with marked pleomorphism, frequently extending down the walls of hair follicles and sweat ducts. Multinucleate cells were frequently present. The invasive components of LMM mainly consisted of atypical melanocytic spindle cells (13 cases, 76.5%), and the mean Breslow thickness was 1.2 mm (0.1-2.7 mm). The lesions of LM/LMM were generally associated with severe actinic damage, scattered infiltration of lymphocytes and melanophages. Statistically, the number of cases whose diameter of lesion ≥0.6 cm, mitotic rates ≥4/mm(2) and nests of melanocytes within epidermis in group of LMM were significantly more than those in group of LM. Immunohistochemically, atypical melanocytes in LM and LMM were generally positive for S-100, HMB45, PNL2, Melan A and SOX-10. Follow-up was available in all cases, ranging from 1 to 64 months. Only one out of 23 patients with wide surgical excision had local recurrence, and the remaining 22 patients were all alive with no evidence of disease. One LM patient who was merely treated with biopsy was alive with disease progression after 20 months follow-up. Conclusions: LM/LMM is a special subtype of melanoma predominantly located on the sun-exposed skin of elderly people. Recognition of its specific histologic features can help distinguish with sun-damaged diseases and other subtypes of melanoma. The prognosis of LM/LMM patients treated with surgical excision is considered relatively favorable. However, long term follow-up should be recommended in patients with LM/LMM because of high recurrence rates indicated by previous studies.
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Affiliation(s)
- M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Finn R, Kudo M, Cheng AL, Wyrwicz L, Ngan R, Blanc J, Baron A, Vogel A, Ikeda M, Piscaglia F, Han KH, Qin S, Minoshima Y, Kanekiyo M, Ren M, Dairiki R, Tamai T, Dutcus C, Funahashi Y, Evans T. Final analysis of serum biomarkers in patients (pts) from the phase III study of lenvatinib (LEN) vs sorafenib (SOR) in unresectable hepatocellular carcinoma (uHCC) [REFLECT]. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy269.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mclean K, Holmes E, Penewit K, Waalkes A, Ren M, Harwood R, Lee S, Gasper J, Manoil C, Salipante S. P036 Whole genome variant analysis and transposon sequencing provides insight into aztreonam resistance in cystic fibrosis Pseudomonas aeruginosa airway infection. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30333-3] [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: 10/14/2022]
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Abstract
Objective: To investigate the difference between routine hematoxylin-eosin (HE) staining and immunohistochemistry in diagnosing metastatic melanoma in sentinel lymph node (SLN) metastases, and to evaluate the association of SLN tumor burden with the status of non-sentinel lymph nodes (NSLN). Methods: 126 melanoma patients were treated with SLN biopsy and further examined with immunohistochemistry at Fudan University Shanghai Cancer Center between 2010 and 2016, and the status of SLN was respectively estimated by HE stain and immunohistochemistry (S-100 protein, HMB45, Melan A and SOX10). In 39 patients who were treated with complete lymph node dissection, characteristics of SLN tumor burden (maximum diameter of the tumor deposit, tumor penetrative depth and the microanatomic location of the metastasis) and the associations of SLN tumor burden with the involvement of NSLN were all evaluated. Results: Of the total 126 cases, 33 (26.2%) were positive by HE staining and 49 (38.3%) were positive by immunohistochemistry. S-100 protein was positive in 48 out of 49 cases (98.0%). HMB45 was positive in 46 out of 49 cases (93.9%). Melan A was positive in 47 out of 49 cases (96.0%). SOX10 was positive in 8 out of 8 cases. The outcome indicated that the application of immunohistochemistry identified positive SLN missed by HE stain in about 12.1% of cases. Of the 39 patients who were treated with complete lymph node dissection, six showed metastases in NSLN. The frequency of metastases in NSLN was 15.4% (6/39) when SLN was positive. Additionally, the frequency of metastases in NSLN in cases with SLN metastatic deposits ≤2 mm was significantly lower than that in cases with SLN metastatic deposits >2 mm; eight cases with SLN metastatic deposits <0.2 mm had no additional positive NSLN. Conclusions: The findings suggest that immunohistochemistry could effectively improve the detection of positive SLN in melanoma. Cases with SLN metastatic deposits ≤2 mm are less likely to have further metastases in NSLN. There is a need for prospective large-population based studies to identify a subgroup of SLN positive patients who can safely be spared complete lymph node dissection.
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Affiliation(s)
- M Ren
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Duan ZJ, Yao K, Qu YM, Ren M, Zhang YL, Qi XL. [Rare primary proximal epithelioid sarcoma in skull base: clinical analysis of four cases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:263-269. [PMID: 29747250 DOI: 10.3760/cma.j.issn.1673-0860.2018.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To report the clinical and pathological features of primary proximal epithelioid sarcoma (PES) in skull base. Methods: The clinical and pathological features of four cases of PES in skull base from Sanbo Brain Institute of Capital Medical University and Kunming Sanbo Brain Institute were analysed retrospectively. Results: Three cases was female, and one male, the age ranged from 46 to 52 years.All cases occurred in skull base, and sellar region was the main site of involvement.Under the microscope, the tumor cells characterized by epithelioid cell changes, with or without rhabdoid tumor cells.Mitotic figure was active.Immunohistochemical staining showed that AE1/AE3, EMA and CD34 were variously expression in tumor cells.INI-1 protein was lost in all cases.Three cases were detected by FISH, and INI1 (22q11.2) gene locus was absent in them.Three patients died less than 3 months after surgery, and case 4 was under treatment after five months of surgery. Conclusions: Primary PES in skull base mostly occurs in sellar region and its clinical prognosis is poor.It features with epithelioid/rhabdoid tumor cells with lack granuloma structure as distal ES.It has epithelial and mesenchymal differentiation characteristics.CD34 is always positive.INI1 gene deletion and protein loss expression are characteristic molecular alteration of PES.
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Affiliation(s)
- Z J Duan
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - K Yao
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - Y M Qu
- Department of Neurosurgery, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - M Ren
- Department of Neurosurgery, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - Y L Zhang
- Department of Neurosurgery, Sanbo Brain Institute, Kunming 650100, China
| | - X L Qi
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
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Yu W, Hu B, Shi X, Cao Z, Ren M, He Z, Lin J, Deng H, Hu R. Nicotine inhibits osteogenic differentiation of human periodontal ligament cells under cyclic tensile stress through canonical Wnt pathway and α7 nicotinic acetylcholine receptor. J Periodontal Res 2018; 53:555-564. [PMID: 29603740 DOI: 10.1111/jre.12545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND OBJECTIVES Nicotine, the main psychoactive component of tobacco, affects cell metabolism, proliferation, adhesion and, importantly, the osteogenic differentiation of fibroblasts. Approximately 15% of all orthodontic patients are adults among who one-fifth are smokers. Hence, it is necessary to have insight into the effects of nicotine on the osteogenic differentiation of hPDLCs during orthodontic tooth movement. This study aimed to investigate the effects and mechanisms of nicotine on the osteogenic differentiation of human periodontal ligament cells (hPDLCs) under the application of cyclic tensile stress. MATERIAL AND METHODS hPDLCs were obtained from donor third molars. The hPDLCs were treated with nicotine and/or cyclic tensile stress that was applied with a cell stress plus unit. The effect of nicotine on cell viability was analyzed using the MTT assay. The osteogenic differentiation of hPDLCs was detected by alkaline phosphatase staining, Alizarin Red S staining, quantitative real-time polymerase chain reaction and western blotting. RESULTS In combination with cyclic tensile stress, nicotine prevented the tensile stress-induced increase in alkaline phosphatase activity, formation of mineralization nodules and the upregulation of mRNA and protein expression of Runt-related transcription factor 2, transcription factor Sp7 and collagen type I; however, canonical Wnt pathway was activated. Furthermore, the addition of Dickkopf-related protein 1 and α-bungarotoxin counteracted the negative effect of nicotine and rescued the osteogenic differentiation of hPDLCs, respectively. CONCLUSION These results indicate that nicotine prevents the increased osteogenic potential of hPDLCs induced by cyclic tensile stress by binding to an α7 nicotinic acetylcholine receptor and activating the canonical Wnt pathway.
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Affiliation(s)
- W Yu
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - B Hu
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - X Shi
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Z Cao
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - M Ren
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Z He
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - J Lin
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - H Deng
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - R Hu
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
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37
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Ren M, Cong XF, Zhao SS, Zhang Y, Yang L. [DICER1 mutaiton identified in sisters with Ovarian Sertoli-Leydig cell tumor]. Zhonghua Zhong Liu Za Zhi 2018; 40:159-160. [PMID: 29502380 DOI: 10.3760/cma.j.issn.0253-3766.2018.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M Ren
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - X F Cong
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - S S Zhao
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - Y Zhang
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - L Yang
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
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Hong D, Varga A, Parikh A, Shapiro G, Reyderman L, Ren M, Dayal S, Binder T, Ooi C, Ataman Ö, Marabelle A. Phase 1 study of E7046, a PGE2 receptor EP-4 inhibitor that targets immunosuppressive myeloid cells in the tumor microenvironment (TME). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx712.001] [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: 11/14/2022] Open
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Zheng J, Wang H, Ren M. Influence of exercise intervention on gestational diabetes mellitus: a systematic review and meta-analysis. J Endocrinol Invest 2017; 40:1027-1033. [PMID: 28401529 DOI: 10.1007/s40618-017-0673-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 04/03/2017] [Indexed: 01/12/2023]
Abstract
AIMS Exercise intervention might be a promising approach to prevent gestational diabetes mellitus. However, the results remained controversial. We conducted a systematic review and meta-analysis to explore the effect of exercise intervention on gestational diabetes mellitus. METHODS PubMed, EMbase, Web of science, EBSCO, and Cochrane library databases were systematically searched. Randomized controlled trials (RCTs) assessing the effect of exercise intervention on gestational diabetes mellitus were included. Two investigators independently searched articles, extracted data, and assessed the quality of included studies. The primary outcome was the incidence of gestational diabetes mellitus, preterm birth, and gestational age at birth. Meta-analysis was performed using random-effect model. RESULTS Five RCTs involving 1872 patients were included in the meta-analysis. Overall, compared with control intervention, exercise intervention was found to significantly reduce the risk of gestational diabetes mellitus (std. mean difference 0.62; 95% CI 0.43-0.89; P = 0.01), but demonstrated no influence on preterm birth (OR 0.93; 95% CI 0.44-1.99; P = 0.86), gestational age at birth (std. mean difference -0.03; 95% CI -0.12 to 0.07; P = 0.60), glucose 2-h post-OGTT (std. mean difference -1.02; 95% CI -2.75 to 0.71; P = 0.25), birth weight (std. mean difference -0.10; 95% CI -0.25 to 0.04; P = 0.16), Apgar score less than 7 (OR 0.78; 95% CI 0.21-2.91; P = 0.71), and preeclampsia (OR 1.05; 95% CI 0.53-2.07; P = 0.88). CONCLUSIONS Compared to control intervention, exercise intervention was found to significantly reduce the incidence of gestational diabetes mellitus, but had no significant influence on preterm birth, gestational age at birth, glucose 2-h post-OGTT, birth weight, Apgar score less than 7, and preeclampsia.
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Affiliation(s)
- J Zheng
- Department of Endocrinology, Chongqing People's Hospital, Chongqing, China
| | - H Wang
- Department of Endocrinology, Chongqing People's Hospital, Chongqing, China
| | - M Ren
- Digestive Department, Chongqing People's Hospital, Chongqing, China.
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Finn R, Kudo M, Cheng AL, Wyrwicz L, Ngan R, Blanc JF, Baron A, Vogel A, Ikeda M, Piscaglia F, Han KH, Qin S, Minoshima Y, Funahashi Y, Ren M, Dairiki R, Sachdev P, Tamai T, Dutcus C, Evans T. Analysis of serum biomarkers (BM) in patients (pts) from a phase 3 study of lenvatinib (LEN) vs sorafenib (SOR) as first-line treatment for unresectable hepatocellular carcinoma (uHCC). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx440.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Hong D, Varga A, Parikh A, Shapiro G, Reyderman L, Ren M, Dayal S, Binder T, Ooi C, Ataman O, Marabelle A. Phase 1 Study of E7046, a PGE2 Receptor EP-4 inhibitor that targets immunosuppressive myeloid cells in the tumor microenvironment. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx367.007] [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: 11/13/2022] Open
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42
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Lyu JJ, Kong YY, Cai X, Shen XX, Lu YW, Ren M. [Utility and evaluation of immunohistochemical detection of BRAF V600E mutation in melanoma]. Zhonghua Bing Li Xue Za Zhi 2017; 46:548-552. [PMID: 28810295 DOI: 10.3760/cma.j.issn.0529-5807.2017.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the sensitivity, specificity and clinical value of anti-BRAF V600E antibody (clone VE1) in detection of the BRAF V600E mutant in formalin-fixed and paraffin-embedded (FFPE) melanoma specimens by immunohistochemical (IHC) methods. Methods: A total of 50 melanoma samples collected between 2008 and 2016 from 40 patients were analyzed for BRAF mutation (exon 15) by DNA sequencing using FFPE. These tissues were immunostained with VE1 antibody, and the results were analyzed and compared with those by DNA sequencing. Results: By DNA sequencing, 36 cases showed BRAF mutation while others were BRAF wild type. Among the 36 cases with BRAF mutation, 32 harbored BRAF V600E, two harbored BRAF V600K, one had BRAF K601E and one had BRAF D594N, respectively. IHC staining showed 30 specimens were VE1 positive, while 19 were negative. The determination of IHC result for one case was obscured by heavy pigments. Of the BRAF-mutated specimens, four specimens with BRAF mutation other than V600E were all negative for VE1. The sensitivity and specificity of the VE1 immunostaining was 96.8% and 100.0% respectively.Concordance of BRAF V600E detection between immunostaining and DNA sequencing was 98.0%(48/49). Conclusions: High sensitivity and specificity for VE1 immunostaining in detecting BRAF V600E in melanomas are demonstrated. It is a rapid and cost-effective method for detecting BRAF V600E mutations in melanoma patients. Hence, VE1 immunostaining can be used as an important screening method for BRAF mutation in laboratories.
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Affiliation(s)
- J J Lyu
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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43
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Zhao LL, Song YQ, Zhang Y, Shi Y, Ren M, Liu S, Mao YM. [Effects of overexpression of human tissue inhibitor of metalloproteinase-1 on the inflammatory response in rats with myocardial infarction and related mechanisms]. Zhonghua Xin Xue Guan Bing Za Zhi 2017. [PMID: 28648029 DOI: 10.3760/cma.j.issn.0253-3758.2017.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the effects of recombinant adenovirus with human tissue inhibitor of metalloproteinase-1(Ad-hTIMP-1) on the inflammatory response in rats with myocardial infarction (MI) and explore the related mechanisms. Methods: The male Wistar rats were randomly divided into sham-operated group, saline group, Ad-Track group and Ad-hTIMP-1 group according to the random number table (n=8 each group). MI was induced by ligation of the left anterior descending coronary artery and MI rats were injected with saline, Ad-Track and Ad-hTIMP-1, respectively. Sham-operated rats received similar surgical procedure without ligation of the left anterior descending coronary artery. After 4 weeks, the cardiac function was measured by echocardiography, then rats were sacrificed and hearts were removed for morphological and biological analysis. The morphology of myocardial tissue in each group was detected by HE staining and Masson staining. The mRNA expressions of tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-10 and C-reactive protein(CRP) were detected by real-time PCR. Immune histochemical staining was performed to observe the protein expression levels of IL-6 and CRP. Results: (1) Left ventricular end systolic dimension derived from echocardiography was increased in saline group ((5.10±0.72) mm) and Ad-Track group ((4.88±0.64) mm) compared to sham-operated group ((4.25±0.46) mm), which was reduced in Ad-hTIMP-1 group ((4.13±0.35) mm, all P<0.05). The left ventricular ejection fraction was (72.46±5.74)%, (64.27±8.52)%, (64.65±3.90)%, and (71.55±6.95)%, the fractional shortening was (36.90±4.97)%, (29.03±3.40)%, (30.95±2.51)%, and (36.31±5.68)% in sham-operated group, saline group, Ad-Track group and Ad-hTIMP-1 group, respectively. The left ventricular ejection fraction and fractional shortening in saline group and Ad-Track group were lower than those in sham-operated group and Ad-hTIMP-1 group (all P<0.05). (2) Necrosis of myocardial cells was not found and a small amount of immune cell infiltration and interstitial fibrosis were observed on HE and Masson stained myocardial sections of Ad-hTIMP-1 group. (3) Real-time PCR showed that mRNA expressions of TNF-α, IL-6, IL-10 and CRP were lower in Ad-hTIMP-1 group than in saline group. mRNA expressions of TNF-α, IL-10 and CRP were lower in Ad-hTIMP-1 group than in Ad-Track group (all P<0.05). (4) Immune histochemical staining showed that protein expressions of IL-6 and CRP were higher in saline group and Ad-Track group than those in Ad-hTIMP-1 group (all P<0.05). Conclusion: Recombinant adenovirus Ad-hTIMP-1 can improve cardiac function in rats with myocardial infarction via inhibiting the inflammatory response and downregulating the expression of TNF-α, IL-6 and CRP.
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Affiliation(s)
- L L Zhao
- Tianjin Institute of Cardiovascular Disease, Tianjin Chest Hospital, Tianjin 300222, China
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Kumar S, Ren M, Morris T, Kaval A, Madi S, Matin A, Turpin S. 45IMPROVING MULTIDISCIPLINARY TEAM MEETINGS IN GERIATRIC EMERGENCY MEDICINE USING QI METHOD. Age Ageing 2017. [DOI: 10.1093/ageing/afx055.45] [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: 11/13/2022] Open
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45
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Wang PP, Ren M, Chen SQ, Yin SW, Zhao C, Zhang HY, Li XR, Cao QQ, Zhou GQ. Characterization and development of 56 EST-SSR markers derived from the transcriptome of Odontobutis potamophila. Genet Mol Res 2017; 16:gmr-16-02-gmr.16029129. [PMID: 28510247 DOI: 10.4238/gmr16029129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Expressed sequence tags (ETSs) are the sources of microsatellite development. In this study, we isolated and characterized microsatellite markers for Odontobutis potamophila by using Illumina RNA-sequencing. We sequenced a large number of ESTs and screened 200 potential microsatellites. Consequently, a total of 56 novel polymorphic microsatellite repeat markers were identified in thirty-two individuals from a wild population area (Jiande, Zhejiang Province, China). The number of alleles per locus varied from two to eight, the observed heterozygosity (HO) ranged from 0.03571 to 0.9375, and the expected heterozygosity (HE) ranged from 0.14326 to 0.81549. The average number of alleles, HO, and HE were 5.0, 0.4467, and 0.5518, respectively. By the calculation, the range of polymorphism information content (PIC) was 0.1177-0.8492. Most of the loci showed moderate or high polymorphism. These newly developed EST-simple sequence repeat (EST-SSR) markers would serve as an efficient tool for analyzing population connectivity and provide sufficient information for genetic diversity research, parentage, and molecular breeding of O. potamophila and other fishes with similar genetic relationship.
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Affiliation(s)
- P P Wang
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China.,, , China
| | - M Ren
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China
| | | | - S W Yin
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China .,Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, Jiangsu, China
| | - C Zhao
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China
| | - H Y Zhang
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China
| | - X R Li
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China
| | - Q Q Cao
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China
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Park J, Salmi ML, Wan Salim WWA, Rademacher A, Wickizer B, Schooley A, Benton J, Cantero A, Argote PF, Ren M, Zhang M, Porterfield DM, Ricco AJ, Roux SJ, Rickus JL. An autonomous lab on a chip for space flight calibration of gravity-induced transcellular calcium polarization in single-cell fern spores. Lab Chip 2017; 17:1095-1103. [PMID: 28205656 DOI: 10.1039/c6lc01370h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This report describes the development of lab-on-a-chip device designed to measure changes in cellular ion gradients that are induced by changes in gravitational (g) forces. The bioCD presented here detects differential calcium ion concentrations outside of individual cells. The device includes sufficient replicates for statistical analysis of the gradients around multiple single cells and around control wells that are empty or include dead cells. In the data presented, the degree of the cellular response correlates with the magnitude of the g-force applied via rotation of the bioCD. The experiments recorded the longest continuous observation of a cellular response to hypergravity made to date, and they demonstrate the potential utility of this device for assaying the threshold of cells' g-force responses in spaceflight conditions.
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Affiliation(s)
- J Park
- Agricultural & Biological Engineering, Physiological Sensing Facility at the Bindley Bioscience Center & Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA.
| | - M L Salmi
- Molecular Biosciences, The University of Texas at Austin, 1 University Station A6700, Austin, TX 78712, USA
| | - W W A Wan Salim
- Agricultural & Biological Engineering, Physiological Sensing Facility at the Bindley Bioscience Center & Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA.
| | - A Rademacher
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - B Wickizer
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - A Schooley
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - J Benton
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - A Cantero
- Molecular Biosciences, The University of Texas at Austin, 1 University Station A6700, Austin, TX 78712, USA
| | - P F Argote
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - M Ren
- Dept of Statistics, Purdue University, West Lafayette, IN 47907, USA
| | - M Zhang
- Dept of Statistics, Purdue University, West Lafayette, IN 47907, USA
| | - D M Porterfield
- Agricultural & Biological Engineering, Physiological Sensing Facility at the Bindley Bioscience Center & Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA. and Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA
| | - A J Ricco
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - S J Roux
- Molecular Biosciences, The University of Texas at Austin, 1 University Station A6700, Austin, TX 78712, USA
| | - J L Rickus
- Agricultural & Biological Engineering, Physiological Sensing Facility at the Bindley Bioscience Center & Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA. and Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
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Adcock CT, Tschauner O, Hausrath EM, Udry A, Luo SN, Cai Y, Ren M, Lanzirotti A, Newville M, Kunz M, Lin C. Shock-transformation of whitlockite to merrillite and the implications for meteoritic phosphate. Nat Commun 2017; 8:14667. [PMID: 28262701 PMCID: PMC5343502 DOI: 10.1038/ncomms14667] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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: 02/11/2016] [Accepted: 01/23/2017] [Indexed: 11/17/2022] Open
Abstract
Meteorites represent the only samples available for study on Earth of a number of planetary bodies. The minerals within meteorites therefore hold the key to addressing numerous questions about our solar system. Of particular interest is the Ca-phosphate mineral merrillite, the anhydrous end-member of the merrillite–whitlockite solid solution series. For example, the anhydrous nature of merrillite in Martian meteorites has been interpreted as evidence of water-limited late-stage Martian melts. However, recent research on apatite in the same meteorites suggests higher water content in melts. One complication of using meteorites rather than direct samples is the shock compression all meteorites have experienced, which can alter meteorite mineralogy. Here we show whitlockite transformation into merrillite by shock-compression levels relevant to meteorites, including Martian meteorites. The results open the possibility that at least part of meteoritic merrillite may have originally been H+-bearing whitlockite with implications for interpreting meteorites and the need for future sample return. Quantifying the amount of water in meteorites remains challenging, with minerals the key to understanding water contents. Here, Adcock et al. perform shock experiments on H+-bearing whitlockite demonstrating that it may transform into anhydrous merrillite, which is commonly found in Martian meteorites.
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Affiliation(s)
- C T Adcock
- Department of Geoscience, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA
| | - O Tschauner
- Department of Geoscience, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA.,High Pressure Science and Engineering Center, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA.,LSPM-CNRS, Institut Galilée, Université Paris 13, Nord, 99, av. J. B. Clément, 93430 Villetaneuse, France.,Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - E M Hausrath
- Department of Geoscience, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA
| | - A Udry
- Department of Geoscience, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA
| | - S N Luo
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, China.,The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, China
| | - Y Cai
- The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, China.,CAS Key Laboratory of Materials Behavior and Design, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - M Ren
- Department of Geoscience, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA
| | - A Lanzirotti
- GeoScienceEnviro Center for Advanced Radiation Sources, University of Chicago, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Newville
- GeoScienceEnviro Center for Advanced Radiation Sources, University of Chicago, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Kunz
- Lawrence Berkeley National Laboratory, Advanced Light Source, University of California, Berkeley, Berkeley, California 94720, USA
| | - C Lin
- High Pressure Collaborative Access Team (HPCAT), Geophysical Laboratory, Carnegie Institution of Washington, Argonne, Illinois 60439, USA
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Xiang YJ, Ren M, Jiang H, Yang TT, He Y, Ao DH, Wang YY, Zhang Q, He XJ, Gao XG, Liu GZ. Ex vivo expansion of antigen-specific CD4+CD25+ regulatory T cells from autologous naïve CD4+ T cells of multiple sclerosis patients as a potential therapeutic approach. Eur Rev Med Pharmacol Sci 2016; 20:5261-5270. [PMID: 28051239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE CD4+CD25+ regulatory T cells (Tregs) have been found to have a decreased effector function in patients with multiple sclerosis (MS). In this study, we co-cultured naïve CD4+ T cells of MS patients with myelin basic protein (MBP)85-99 peptide as specific antigen and allogenic B cells as antigen-presenting cells, in an attempt to generate adequate antigen-specific CD4+CD25+ Tregs with normal or improved immune function. PATIENTS AND METHODS Naïve CD4+ T cells were isolated from peripheral blood mononuclear cells (PBMCs) from patients with MS (n=5) and healthy controls (HC, n=5). Furthermore, these purified naive CD4+ T cells were co-cultured with the CD40-activated B cells and MBP85-99 peptide to induce MBP-reactive CD4+CD25highCD127low Tregs. After harvesting these Tregs via a flow sorter, real-time PCR and mixed lymphocyte reaction (MLR) assay were performed to characterize cellular immune function. Supernatant interleukin (IL)-10 and transforming growth factor (TGF)-β1 protein levels were detected by an enzyme-linked immunosorbent assay (ELISA). RESULTS With this method, the frequency of CD4+CD25highCD127low Tregs in CD4+ T cells was 3.5%-6%. In both MS and HC groups, there were relatively lower proliferation indices (PI) of MLR assay but higher supernatant IL-10 and TGF-β1 levels in the presence of MBP than those in the presence of other control antigens, where no significant differences were found. CONCLUSIONS Via the ex vivo culture, adequate MBP-reactive CD4+CD25+ Tregsderived from autologous naïve CD4+ T cells of MS patients, were obtained and returned to normal without immune defects, and even upregulated their immunosuppressive function mostly through the elevated release of IL-10 and TGF-β1.
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Affiliation(s)
- Y-J Xiang
- Department of Neurology, Peking University People's Hospital, Beijing, China.
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Velcheti V, Hida T, Reckamp K, Yang J, Nokihara H, Sachdev P, Feit K, Kubota T, Nakada T, Dutcus C, Ren M, Tamura T. Phase 2 study of lenvatinib (LN) in patients (Pts) with RET fusion-positive adenocarcinoma of the lung. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw383.05] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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