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Kong QY, Zhao CF, Wang MM, Zhao HZ. [Coefficient of variation of heart rate and blood pressure in rapid identification of children with suspected orthostatic intolerance]. Zhonghua Er Ke Za Zhi 2022; 60:25-29. [PMID: 34986619 DOI: 10.3760/cma.j.cn112140-20211008-00851] [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 clinical value of coefficient of variation of heart rate and blood pressure in rapid identification of children with suspected orthostatic intolerance(OI). Methods: This was a retrospective study. The medical records of 379 children with OI were collected, who were admitted to the Department of Pediatrics of Qilu Hospital of Shandong University from January 2015 to January 2020. Another 20 out-patient children without syncope or syncope aura were selected as control. According to the results of standing test and head-up tilt test (HUTT), all the patients with OI were divided into the following 4 groups: vasovagal syncope (VVS) group, postural tachycardia syndrome (POTS) group, POTS combined with VVS (POTS+VVS) group and HUTT negative group. Then, coefficient of variation of systolic pressure (SBPCV), coefficient of variation of diastolic pressure (DBPCV) and coefficient of variation of heart rate (HRCV) in standing test and HUTT were calculated. Kruskal-Wallis test was used for comparison among the five groups, and Dunnett's T3 method for comparison between two groups. Paired t test was used to compare the coefficient of variation between supine and erect position and tilt position in each group. The predictive values of HRCV,SBPCV and DBPCV for negative HUTT were evaluated by receiver operating characteristic (ROC) curve. Results: Among the 379 children, there were 79 in HUTT negative group, 208 in VVS group, 52 in POTS group, and 40 in POTS+VVS group. The SBPCV of supine-erect position of the control group, HUTT negative group, VVS group, POTS group, POTS+VVS group were (3.8±1.0)%, (5.3±2.2)%, (6.6±3.4)%, (5.9±3.6)%, (6.9±2.8)%, respectively. Similarly, the SBPCV of supine, erect and head-up tilt position were (4.5±0.8)%, (6.0±1.9)%, (7.1±2.6)%, (6.0±2.1)%, (7.3±2.5)%; the DBPCV of supine-erect position were (7.3±1.2)%, (9.1±3.7)%, (9.1±4.9)%, (9.1±4.8)%, (11.6±4.6)%; the DBPCV of supine, erect and tilt position were (7.4±1.1)%, (9.4±2.9)%, (10.1±3.8)%, (9.2±3.3)%, (11.0±4.7)%; the HRCV of supine-erect position were (7.6±2.6)%, (12.9±3.7)%, (16.2±4.3)%, (21.2±5.9)%, (24.9±5.3)%; and the HRCV of supine, erect and tilt position were (8.1±1.6)%, (10.1±2.7)%, (14.1±4.3)%, (15.6±3.7)%, (18.9±4.0)%, respectively. All the indexes showed significant differences among the five groups (χ2=21.91, 25.47, 19.82, 14.65, 104.52, 92.51, all P<0.05). ROC curve analysis showed that when the SBPCV and HRCV of supine-erect position reached 4.4% and 10.5%, the area under the curve of ROC were 0.713 and 0.877, the sensitivity of predicting negative HUTT were 58.2% and 78.5%, and the specificity were 80.0% and 95.0%, respectively. Conclusions: Coefficient of variation of heart rate and blood pressure may serve as potential diagnostic indexes in evaluating autonomic function of OI patients. SBPCV ≥ 4.4% or HRCV ≥ 10.5% of supine-erect position could be an indication of HUTT.
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Affiliation(s)
- Q Y Kong
- Department of Pediatric Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - C F Zhao
- Department of Pediatric Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - M M Wang
- Department of Pediatric Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - H Z Zhao
- Department of Pediatric Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
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Li XM, Li YY, Zhao CF, Liu LN, He QY, Jiang JQ, Chen Y, Yang MH, Tang YX, Li YX, Jin F. [The expression of clock gene CLOCK and its clinical significance in nasopharyngeal carcinoma]. Zhonghua Zhong Liu Za Zhi 2021; 43:1255-1263. [PMID: 34915633 DOI: 10.3760/cma.j.cn112152-20210729-00558] [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 explore the relationship between expression levels of CLOCK mRNA and protein and the clinical characteristics of patients with nasopharyngeal carcinoma. Methods: The frozen tissue specimens from 33 patients with nasopharyngeal carcinoma in the Affiliated Tumor Hospital of Guizhou Medical University from 2018 to 2019 were collected. Seventeen cases of tissue specimens from patients with nasopharyngeal chronic inflammation in the Affiliated Hospital of Guizhou Medical University in 2019 were collected. From 2008 to 2014, 68 cases of formalin-fixed paraffin-embedding (FFPE) nasopharyngeal carcinoma tissue and 37 cases of FFPE nasopharyngeal chronic inflammation tissue were collected from the Affiliated Tumor Hospital of Guizhou Medical University. Real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) and western blot (WB) were used to detect the mRNA and protein expression levels of CLOCK. The nasopharyngeal carcinoma cells including CNE1, CNE2, 5-8F and the normal nasopharyngeal epithelial cell NP69 were cultured. qRT-PCR was used to detect the expression level of CLOCK mRNA in each cell line at the time points of ZT2, ZT6, ZT10, ZT14, ZT18 and ZT22. The cosine method was used to fit the rhythm of CLOCK gene in nasopharyngeal carcinoma. The protein expression of CLOCK protein was detected by using immunohistochemical method in 68 cases of nasopharyngeal carcinoma and 37 cases of nasopharyngeal chronic inflammation tissue. Survival was analyzed by Kaplan-Meier method and Log rank test, and the influencing factors was analyzed by Cox regression model. Results: The expression levels of CLOCK mRNA in CNE1, CNE2 and 5-8F cells (0.63±0.07, 0.91±0.02 and 0.33±0.04, respectively) were lower than that in NP69 cell (1.00±0.00, P<0.05). The expression levels of CLOCK protein in CNE1, CNE2 and 5-8F cells (0.79±0.06, 0.57±0.05 and 0.74±0.10, respectively) were lower than that of NP69 cells (1.00±0.00, P<0.05). The expressions of CLOCK mRNA in nasopharyngeal carcinoma cells including CEN1, CNE2, 5-8F and normal nasopharyngeal epithelial cell NP69 were different at different time points, with temporal fluctuations. The fluctuation periods of CLOCK mRNA in CNE1, CNE2, 5-8F, and NP69 cells were 16, 14, 22 and 24 hours, respectively. The peak and trough times were ZT10: 40 and ZT18: 40, ZT10 and ZT3, ZT14: 30 and ZT3: 30, ZT12: 39 and ZT0: 39, respectively. CLOCK mRNA and protein expression levels in nasopharyngeal carcinoma tissues (0.37±0.20 and 0.20±0.26, respectively) were lower than those in nasopharyngeal chronic inflammation tissues (1.00±0.00 and 0.51±0.41, respectively, P<0.05). The 1, 3, and 5-year survival rates of patients in the CLOCK protein high expression group (CLOCK protein expression level ≥ 0.178) were 96.2%, 92.1%, and 80.1%, respectively, which were higher than those in the low expression group (CLOCK protein expression level <0.178, 92.9% , 78.6% and 57.1%, respectively, P=0.009). The 1, 3, and 5-year progression-free survival (PFS) rates of patients in the CLOCK protein high expression group were 96.2%, 87.8%, and 87.7%, respectively, which were higher than those in the low expression group (92.7%, 82.2%, and 70.8%, respectively, P=0.105). Compared with the low-expression group (100.0%, 96.9%, and 90.0%, respectively), the 1, 3, and 5-year recurrence-free survival rates of patients in the CLOCK protein high expression group (100.0%, 95.7%, and 95.7%, respectively) were not statistically significant (P=0.514). Compared with the low-expression group (92.7%, 82.2%, and 79.3%), the 1, 3, and 5-year survival rates without metastasis in the CLOCK protein high expression group (96.2%, 92.0%, and 92.0%, respectively) were not statistically significant (P=0.136). CLOCK protein expression and T stage were independent prognostic factors of overall survival (P<0.05). Conclusions: The expression of CLCOK is downregulated in the nasopharyngeal carcinoma cell and nasopharyngeal carcinoma tissues. Clock gene CLOCK is rhythmically expressed in the nasopharyngeal carcinoma cells and normal nasopharyngeal epithelial cells. Compared with normal nasopharyngeal epithelial cells, the fluctuation period of CLOCK in nasopharyngeal carcinoma cells is shortened. The overall survival of patients in the CLOCK protein high expression group is better than that of low expression group. The expression of CLOCK protein is an independent influencing factor for overall survival. CLOCK gene may be a potential tumor suppressor gene in the nasopharyngeal carcinoma.
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Affiliation(s)
- X M Li
- Department of Oncology, Affiliated Tumor Hospital of Guizhou Medical University, Guiyang 550004, China
| | - Y Y Li
- Department of Oncology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - C F Zhao
- Department of Oncology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - L N Liu
- Department of Oncology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - Q Y He
- Department of Oncology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - J Q Jiang
- Department of Oncology, Affiliated Tumor Hospital of Guizhou Medical University, Guiyang 550004, China
| | - Y Chen
- Department of Oncology, Affiliated Tumor Hospital of Guizhou Medical University, Guiyang 550004, China
| | - M H Yang
- Guizhou Medical University School of Clinical Medicine, Guiyang 550004, China
| | - Y X Tang
- Guizhou Medical University School of Clinical Medicine, Guiyang 550004, China
| | - Y X Li
- Guizhou Medical University School of Clinical Medicine, Guiyang 550004, China
| | - F Jin
- Department of Oncology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
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Zhao CF, Hu HX, Chen L, Wang LL, Wei B, Xu H. [Analysis of seven cases of multiple myeloma with initial manifestation of bleeding]. Zhonghua Nei Ke Za Zhi 2021; 60:831-833. [PMID: 34445821 DOI: 10.3760/cma.j.cn112138-20200828-00780] [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
A retrospective analysis of 7 patients of multiple myeloma (MM) with initial manifestation of bleeding and coagulation abnormalities were performed. Clinical manifestations, laboratory and imaging examinations were collected. The activity of coagulation factors was measured before the treatment. Single factor X deficiency was seen in one patient. Two cases had factor Ⅶ deficiency, while four other patients had multiple factor deficiency. The time from onset of symptoms to diagnosis ranged from 2 to 10 months. After anti-MM treatment started and plasma or coagulation factors were transfused, the prolonged coagulation time returned to normal from 28-84 days. Most of these patients presented large, deep and multiple sites of hematoma, which caused concerns of bone marrow puncture and may direct to other differential diagnoses. This is helpful to improve physicians' understanding of the special clinical characteristics in MM patients.
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Affiliation(s)
- C F Zhao
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
| | - H X Hu
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
| | - L Chen
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
| | - L L Wang
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
| | - B Wei
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
| | - H Xu
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
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Ding F, Guo XG, Song WY, Fan R, Zhao CF, Mao KY, Zhang ZW, Peng PY, Lin H, Dong WG, Qian TJ, Yang ZH, Zou YJ. Infestation and distribution of chigger mites on Brown rat (Rattus norvegicus) in Yunnan Province, Southwest China. Trop Biomed 2021; 38:111-121. [PMID: 33797533 DOI: 10.47665/tb.38.1.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chigger mites is a group of arthropods and some of them are vectors of scrub typhus. As a common synanthropic rodent species, the Brown rat (Rattus norvegicus) often harbors lots of ectoparasites including chigger mites. According to some "data mining" strategies, the present study took the advantage of the abundant original data from a long-term field ecological investigation between 2001 and 2015 to make a detailed analysis of chigger mites on R. norvegicus in Yunnan Province, Southwest of China. From 18 of 33 investigated counties, only 1414 chigger mites were collected from 1113 Brown rats with relatively low infestations. The 1414 individual chigger mites were identified as comprising 61 species, 11 genera and 2 subfamilies of the family Trombiculidae with a high species diversity (S=61, H'=3.13). Of 61 mite species, there were four main species, Walchia ewingi, Ascoschoengastia indica, W. koi and A. rattinorvegici, which accounted for 44.41% of the total mites. All the chigger mites were of aggregated distribution among different individuals of R. norvegicus. The Brown rats in the outdoor habitats harbored much more individuals and species of chigger mites with a higher mean abundance (MA=1.46) and mean intensity (MI=12.53) than in the indoor habitats (P<0.05). The overall infestation of the rats was significantly higher in the mountainous landscapes than in the flatland landscapes (P<0.001). The species similarity (Css) of the mites on the male and female rats reached 64.44% with sex biased infestations. The male rats harbored more species and individuals of the mites than the female rats. The adult rats harbored more species and individuals of the mites than the juvenile rats. The species abundance distribution of the mites was successfully fitted by Preston's lognormal model with ŝ(R)=15e-[0.31(R-1)]2 (α=0.31, R2=0.95). On the basis of fitting the theoretical curve by Preston's model, the total mite species on R. norvegicus was estimated to be 86 species, and 25 rare mite species were missed in the sampling field investigation. The curve tendency of the species-plot relationship indicates that R. norvegicus have a great potential to harbor many species of chigger mites, and more species of the mites would be collected if more rats are sampled.
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Affiliation(s)
- F Ding
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - X G Guo
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - W Y Song
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - R Fan
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - C F Zhao
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - K Y Mao
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - Z W Zhang
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - P Y Peng
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - H Lin
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - W G Dong
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - T J Qian
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - Z H Yang
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
| | - Y J Zou
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan, 671000, China
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Yan Z, Shen Z, Li Z, Chao Q, Kong L, Gao ZF, Li QW, Zheng HY, Zhao CF, Lu CM, Wang YW, Wang BC. Genome-wide transcriptome and proteome profiles indicate an active role of alternative splicing during de-etiolation of maize seedlings. Planta 2020; 252:60. [PMID: 32964359 DOI: 10.1007/s00425-020-03464-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 09/12/2020] [Indexed: 06/11/2023]
Abstract
AS events affect genes encoding protein domain composition and make the single gene produce more proteins with a certain number of genes to satisfy the establishment of photosynthesis during de-etiolation. The drastic switch from skotomorphogenic to photomorphogenic development is an excellent system to elucidate rapid developmental responses to environmental stimuli in plants. To decipher the effects of different light wavelengths on de-etiolation, we illuminated etiolated maize seedlings with blue, red, blue-red mixed and white light, respectively. We found that blue light alone has the strongest effect on photomorphogenesis and that this effect can be attributed to the higher number and expression levels of photosynthesis and chlorosynthesis proteins. Deep sequencing-based transcriptome analysis revealed gene expression changes under different light treatments and a genome-wide alteration in alternative splicing (AS) profiles. We discovered 41,188 novel transcript isoforms for annotated genes, which increases the percentage of multi-exon genes with AS to 63% in maize. We provide peptide support for all defined types of AS, especially retained introns. Further in silico prediction revealed that 58.2% of retained introns have changes in domains compared with their most similar annotated protein isoform. This suggests that AS acts as a protein function switch allowing rapid light response through the addition or removal of functional domains. The richness of novel transcripts and protein isoforms also demonstrates the potential and importance of integrating proteomics into genome annotation in maize.
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Affiliation(s)
- Zhen Yan
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Zhuo Shen
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, 510640, China
| | - Zhe Li
- Precision Scientific (Beijing) Co., Ltd., Beijing, 100085, China
| | - Qing Chao
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
- The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100039, China
| | - Lei Kong
- State Key Laboratory of Protein and Plant Gene Research, Center for Bioinformatics, College of Life Sciences, Peking University, Beijing, 100871, China
| | - Zhi-Fang Gao
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
| | - Qing-Wei Li
- Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Hai-Yan Zheng
- Center for Advanced Biotechnology and Medicine, Biological Mass Spectrometry Facility, Rutgers University, Piscataway, NJ, 08855, USA
| | - Cai-Feng Zhao
- Center for Advanced Biotechnology and Medicine, Biological Mass Spectrometry Facility, Rutgers University, Piscataway, NJ, 08855, USA
| | - Cong-Ming Lu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Ying-Wei Wang
- Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
| | - Bai-Chen Wang
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China.
- University of Chinese Academy of Sciences, 100049, Beijing, China.
- The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100039, China.
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Wang YF, Chao Q, Li Z, Lu TC, Zheng HY, Zhao CF, Shen Z, Li XH, Wang BC. Corrigendum to "Large-scale Identification and Time-course Quantification of Ubiquitylation Events During Maize Seedling De-etiolation" [Genomics Proteomics Bioinformatics 17 (6) (2019) 603-622]. Genomics Proteomics Bioinformatics 2020; 18:488. [PMID: 32753309 DOI: 10.1016/j.gpb.2020.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yue-Feng Wang
- Photosynthesis Research Center, CAS Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qing Chao
- Photosynthesis Research Center, CAS Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Zhe Li
- Precision Scientific (Beijing) Co., Beijing 100085, China
| | - Tian-Cong Lu
- Advanced Biotechnology and Application Research Center, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Hai-Yan Zheng
- Center for Advanced Biotechnology and Medicine, Biological Mass Spectrometry Facility, Rutgers University, Piscataway, NJ 08855, USA
| | - Cai-Feng Zhao
- Center for Advanced Biotechnology and Medicine, Biological Mass Spectrometry Facility, Rutgers University, Piscataway, NJ 08855, USA
| | - Zhuo Shen
- Photosynthesis Research Center, CAS Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Xiao-Hui Li
- Crop Germplasm Resources Institute, Jilin Academy of Agricultural Sciences, Gongzhuling 136100, China.
| | - Bai-Chen Wang
- Photosynthesis Research Center, CAS Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
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Zhang Q, Jin Y, Zhao CF, Wang WJ, Liu GY. Receptor for advanced glycation end-products (RAGE) is overexpressed in human osteosarcoma and promotes the proliferation of osteosarcoma U-2OS cells in vitro. Genet Mol Res 2016; 15:gmr7817. [PMID: 27323159 DOI: 10.4238/gmr.15027817] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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
Osteosarcoma (OS) is an aggressive cancer of the long bones, and usually affects children and young adults. The receptor for advanced glycation end-products (RAGE) has recently been recognized as an oncogenic receptor that binds to different ligands, and promotes the progression of various cancers. However, little is known about the association between RAGE and the pathogenesis of OS. In this study, we first examined the expression of RAGE in OS tissues using immunohistochemical staining, western blotting, and reverse transcription quantitative polymerase chain reaction. We then determined the influence of the overexpressed RAGE on the proliferation of U-2OS cells in vitro. The results showed that RAGE was overexpressed in OS tissues compared with peritumor tissues, at both the mRNA and protein levels, and there was a significant association between overexpressed RAGE and clinicopathological characteristics, such as clinical stage and distant metastasis. Moreover, the overexpression of RAGE in U-2OS cells significantly promoted their proliferation in vitro. In conclusion, this study indicated that RAGE is overexpressed in OS tissue and promotes the proliferation of U-2OS cells. These data imply that RAGE promotes the growth of OS, and is a potential diagnostic biomarker and therapeutic target for the disorder.
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Affiliation(s)
- Q Zhang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Y Jin
- Department of Ophthalmology, Second Hospital of Jilin University, Changchun, China
| | - C F Zhao
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - W J Wang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - G Y Liu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
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Yang XF, Zhang YF, Zhao CF, Liu MM, Si JP, Fang YF, Xing WW, Wang FL. Relationship between TBX20 gene polymorphism and congenital heart disease. Genet Mol Res 2016; 15:gmr7374. [PMID: 27323105 DOI: 10.4238/gmr.15027374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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
Congenital heart disease in children is a type of birth defect. Previous studies have suggested that the transcription factor, TBX20, is involved in the occurrence and development of congenital heart disease in children; however, the specific regulatory mechanisms are yet to be evaluated. Hence, this study aimed to evaluate the relationship between the TBX20 polymorphism and the occurrence and development of congenital heart disease. The TBX20 gene sequence was obtained from the NCBI database and the polymorphic locus candidate was predicted. Thereafter, the specific gene primers were designed for the restriction fragment length polymorphism-polymerase chain reaction (RFLP-PCR) of DNA extracted from the blood of 80 patients with congenital heart disease and 80 controls. The results of the PCR were subjected to correlation analysis to identify the differences between the amplicons and to determine the relationship between the TBX20 gene polymorphism and congenital heart disease. One of the single nucleotide polymorphic locus was found to be rs3999950: c.774T>C (Ala265Ala). The TC genotype frequency in the patients was higher than that in the controls, similar to that for the C locus. The odds ratio of the TC genotypes was above 1, indicating that the presence of the TC genotype increases the incidence of congenital heart diseases. Thus, rs3999950 may be associated with congenital heart disease, and TBX20 may predispose children to the defect.
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Affiliation(s)
- X F Yang
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, Shandong, China.,Department of Pediatrics, Yidu Central Hospital of Weifang City, Qingzhou, Shandong, China
| | - Y F Zhang
- Department of Pediatrics, Yidu Central Hospital of Weifang City, Qingzhou, Shandong, China
| | - C F Zhao
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - M M Liu
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - J P Si
- Department of Pediatrics, People's Hospital of GuangRao, Dongying, Shandong, China
| | - Y F Fang
- Department of Pediatrics, Yidu Central Hospital of Weifang City, Qingzhou, Shandong, China
| | - W W Xing
- Department of Pediatrics, Yidu Central Hospital of Weifang City, Qingzhou, Shandong, China
| | - F L Wang
- Department of Pediatrics, Yidu Central Hospital of Weifang City, Qingzhou, Shandong, China
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Zhao CF, Chen T, Zhao QY, Zhou LH, Zhao L, Zhang YD, Zhu Z, Yao S, Wang CL. Analysis of QTLs for panicle exsertion and its relationship with yield and yield-related traits in rice (Oryza sativa L.). Genet Mol Res 2016; 15:gmr7423. [PMID: 27173278 DOI: 10.4238/gmr.15027423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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
Panicle exsertion (PE) is an important morphological trait that is closely associated with spikelet fertility and grain yield. To understand the genetic basis of PE and its relationships with yield and yield-related traits, a recombinant inbred population consisting of 240 lines derived from a cross between an Indica cultivar 'Kasalath' and a Japonica germplasm 'TD70', was studied over two years. PE was significantly correlated with plant height, heading date (HD), panicle length (PL), and panicle characteristics such as primary branch number, spikelet number per panicle, and spikelet density, but showed poor correlation with yield components. Based on linkage mapping of 141 SSR markers, a total of 38 quantitative trait loci (QTLs) were located for 12 investigated traits, with the contribution varying from 6.51 to 8.61%. Among these, four QTL clusters were identified on chromosomes 1, 2, 3, and 6, suggesting the existence of pleiotropic alleles. In some intervals, two loci for PE were collocated with several traits, which is consistent with the correlations observed with phenotypic variations. The PE QTLs with 'Kasalath' alleles and without pleiotropic effects would be valuable for the improvement of PE in 'TD70' and in other rice varieties.
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Affiliation(s)
- C F Zhao
- Institute of Food Crops, Jiangsu High Quality Rice Research and Development Center, Nanjing Branch of China National Center for Rice Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - T Chen
- Institute of Food Crops, Jiangsu High Quality Rice Research and Development Center, Nanjing Branch of China National Center for Rice Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Q Y Zhao
- Institute of Food Crops, Jiangsu High Quality Rice Research and Development Center, Nanjing Branch of China National Center for Rice Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - L H Zhou
- Institute of Food Crops, Jiangsu High Quality Rice Research and Development Center, Nanjing Branch of China National Center for Rice Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - L Zhao
- Institute of Food Crops, Jiangsu High Quality Rice Research and Development Center, Nanjing Branch of China National Center for Rice Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Y D Zhang
- Institute of Food Crops, Jiangsu High Quality Rice Research and Development Center, Nanjing Branch of China National Center for Rice Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Z Zhu
- Institute of Food Crops, Jiangsu High Quality Rice Research and Development Center, Nanjing Branch of China National Center for Rice Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - S Yao
- Institute of Food Crops, Jiangsu High Quality Rice Research and Development Center, Nanjing Branch of China National Center for Rice Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - C L Wang
- Institute of Food Crops, Jiangsu High Quality Rice Research and Development Center, Nanjing Branch of China National Center for Rice Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing, China
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10
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Abstract
In this study, we investigated the differential expression profiles of cyclooxygenase-2 (COX-2) mRNA and proteins in osteoarthritis (OA) and rheumatoid arthritis (RA) patients to elucidate the role of COX-2 expression in the pathogenesis and development of these diseases and to provide novel drug targets for treating arthritis. A total of 60 patients who received arthroscopic surgeries for treating OA (N = 30) or RA (N = 30) were examined. Fifteen normal synovial tissue samples were included as the control group. Fibroblastic synovial cells in all samples were cultured in vitro and COX-2 mRNA, protein expression levels, and COX-2 levels were detected in synovial fluids by real-time polymerase chain reaction, western blotting, and enzyme-linked immunosorbent assay methods, respectively. The mRNA level of COX-2 was significantly elevated in synovial cells from OA and RA patients compared to that in control samples (P < 0.05). COX-2 mRNA level was significantly higher in synovial cells from OA patients than in those from RA patients (P < 0.05). Consistent results were obtained for COX-2 protein expression levels from patients' synovial samples. In synovial fluids, OA (P < 0.05), but not RA (P > 0.05), patients showed significantly higher COX-2 levels compared to the control group. Elevated synovial COX-2 expression facilitates the pathogenesis of OA and RA, and thus this index reflects the condition of these 2 diseases.
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Affiliation(s)
- H W Fan
- Department of Orthopedic,China-Japan Union Hospital of Jilin University, Changchun Jilin, China
| | - G Y Liu
- Department of Orthopedic,China-Japan Union Hospital of Jilin University, Changchun Jilin, China
| | - C F Zhao
- Department of Orthopedic,China-Japan Union Hospital of Jilin University, Changchun Jilin, China
| | - X F Li
- Department of Orthopedic,China-Japan Union Hospital of Jilin University, Changchun Jilin, China
| | - X Y Yang
- The Second Hospital of Jilin University, Orthopaedics Hospital, Changchun Jilin, China
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11
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Li W, Kong QY, Zhao CF, Zhao F, Li FH, Xia W, Wang R, Hu YM, Hua M. Adrenomedullin and adrenotensin regulate collagen synthesis and proliferation in pulmonary arterial smooth muscle cells. Braz J Med Biol Res 2013; 46:1047-1055. [PMID: 24345914 PMCID: PMC3935277 DOI: 10.1590/1414-431x20132882] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 07/29/2013] [Indexed: 11/22/2022] Open
Abstract
To understand the pathophysiological mechanisms of pulmonary arterial smooth muscle cell (PASMC) proliferation and extracellular-matrix accumulation in the development of pulmonary hypertension and remodeling, this study determined the effects of different doses of adrenomedullin (ADM) and adrenotensin (ADT) on PASMC proliferation and collagen synthesis. The objective was to investigate whether extracellular signal-regulated kinase (ERK1/2) signaling was involved in ADM- and ADT-stimulated proliferation of PASMCs in 4-week-old male Wistar rats (body weight: 100-150 g, n=10). The proliferation of PASMCs was examined by 5-bromo-2-deoxyuridine incorporation. A cell growth curve was generated by the Cell Counting Kit-8 method. Expression of collagen I, collagen III, and phosphorylated ERK1/2 (p-ERK1/2) was evaluated by immunofluorescence. The effects of different concentrations of ADM and ADT on collagen I, collagen III, and p-ERK1/2 protein expression were determined by immunoblotting. We also investigated the effect of PD98059 inhibition on the expression of p-ERK1/2 protein by immunoblotting. ADM dose-dependently decreased cell proliferation, whereas ADT dose-dependently increased it; and ADM and ADT inhibited each other with respect to their effects on the proliferation of PASMCs. Consistent with these results, the expression of collagen I, collagen III, and p-ERK1/2 in rat PASMCs decreased after exposure to ADM but was upregulated after exposure to ADT. PD98059 significantly inhibited the downregulation by ADM and the upregulation by ADT of p-ERK1/2 expression. We conclude that ADM inhibited, and ADT stimulated, ERK1/2 signaling in rat PASMCs to regulate cell proliferation and collagen expression.
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Affiliation(s)
- W Li
- Shandong University, Biomedical Engineering Institute, School of Control Science and Engineering, JinanShandong, China
| | - Q Y Kong
- Shandong University, Qilu Hospital, Department of Pediatrics, JinanShandong, China
| | - C F Zhao
- Shandong University, Qilu Hospital, Department of Pediatrics, JinanShandong, China
| | - F Zhao
- Weill Medical College of Cornell University, Department of Medicine, New YorkNY, USA
| | - F H Li
- Shandong University, Qilu Hospital, Department of Pediatrics, JinanShandong, China
| | - W Xia
- Shandong University, Qilu Hospital, Department of Pediatrics, JinanShandong, China
| | - R Wang
- Shandong University, Qilu Hospital, Key Laboratory of Cardiovascular Remodeling and Function Research, JinanShandong, China
| | - Y M Hu
- Shandong University, Biomedical Engineering Institute, School of Control Science and Engineering, JinanShandong, China
| | - M Hua
- Shandong Institute of Scientific and Technical Information, JinanShandong, China
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12
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Zhao CF, Liu Y, Ni YL, Yang JW, Hui HD, Sun ZB, Liu SJ. SCIRR39 promotes neurite extension via RhoA in NGF-induced PC12 cells. Dev Neurosci 2013; 35:373-83. [PMID: 24021527 DOI: 10.1159/000350715] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 03/17/2013] [Indexed: 11/19/2022] Open
Abstract
SCIRR39 is an identified upregulated gene in rat primary neuron injury and/or regeneration process with roles largely unexplored. Using real-time quantitative PCR, Western blotting and immunofluorescence, SCIRR39 expression was detected in normal PC12 cells and upregulated in differentiated cells. The results of cell proliferation by Cell Counting Kit and cell cycle by flow cytometry indicated that SCIRR39 inhibited cell proliferation and induced the decrease in S phase. Importantly, immunofluorescent and RhoA pull-down assays showed that SCIRR39 strongly affected the neurite extension of NGF-treated PC12 cells through a RhoA-dependent mechanism, but the truncated mutants of SCIRR39 containing a truncation from 141AA to 211AA or from 397AA to 424AA failed to mock the SCIRR39 effect on neurite extension. Moreover, change of SCIRR39 expression in NGF-treated PC12 cells regulated the expression and phosphorylation of Fyn, a regulator of RhoA activity, but not the expression of ROCK II protein. Finally, immunofluorescence and RhoA pull-down assays revealed that obvious inhibition of neurite extension by SCIRR39 shRNA was reversed by RhoA inhibitor C3-transferase. Our results indicated that SCIRR39 increased the neurite extension in NGF-treated PC12 cells via RhoA, suggesting that SCIRR39 contributes to the regeneration of neuron injury by specifically altering the differentiation program.
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Affiliation(s)
- C F Zhao
- State Key Laboratory of Proteomics, Department of Neurobiology, Institute of Basic Medical Sciences, The Academy of Military Medical Sciences, Beijing, PR China
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Zhao CF, Liu Y, Que HP, Yang SG, Liu T, Liu ZQ, Hui HD, Liu S. Rnh1 promotes differentiation and myelination via RhoA in oligodendrocytes. Cell Tissue Res 2013; 353:381-9. [PMID: 23624614 DOI: 10.1007/s00441-013-1625-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Accepted: 04/04/2013] [Indexed: 01/20/2023]
Abstract
Increases in Rattus norvegicus ribonuclease/angiogenin inhibitor 1 (Rnh1) are observed in rat primary neuron injury and/or the regeneration process and in differentiated oligodendrocytes. However, the roles of Rnh1 in the central nervous system are still largely unexplored. RhoA is an important signaling protein that has been implicated in oligodendrocyte differentiation and myelination. We demonstrate enhanced differentiation and myelination of oligodendrocytes mediated by Rnh1 in vitro. We further show that Rnh1 is expressed in oligodendrocyte precursors and oligodendrocytes. Importantly, Rnh1 strongly affects oligodendrocyte differentiation through RhoA-ROCK signaling. Moreover, changes in Rnh1 expression in oligodendrocytes regulates the expression and phosphorylation of Fyn, a regulator of RhoA activity. Finally, Rnh1 promotes myelination in vitro. These results show that Rnh1-mediated RhoA inactivation enhances the differentiation and myelination in oligodendrocytes. Overall, Rnh1 might contribute to oligodendrocyte differentiation and myelination processes in vitro.
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Affiliation(s)
- C F Zhao
- State Key Laboratory of Proteomics and Department of Neurobiology, Institute of Basic Medical Sciences, The Academy of Military Medical Sciences, Beijing, 100850, People's Republic of China
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14
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Abstract
The tendon-pulley geometry and gliding resistance with and without the A3 pulley were compared in 6 fresh human cadaver fingers. We measured the x-ray images of the distal A2 pulley-tendon angle and proximal A4 pulley-tendon angle with varying degrees of proximal interphalangeal joint flexion between 0 degrees and 120 degrees before and after A3 pulley resection. The gliding resistance of the flexor digitorum profundus tendon under the A2 pulley was also measured at varying tendon-pulley angles. With the A3 pulley removed, the tendon-pulley angle significantly increased compared with the A3 intact state. The gliding resistance between tendon and pulley quadratically increased as the tendon-pulley angle increase from 0 degrees to 60 degrees. These results indicate that the A3 pulley might serve to reduce tendon-pulley gliding resistance by reducing the tendon-pulley angle during finger flexion.
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Affiliation(s)
- C F Zhao
- Biomechanics Laboratory, Division of Orthopedic Research, Mayo Clinic and Mayo Foundation, Rochester, MN 55905, USA
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15
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Abstract
OBJECTIVE We demonstrate the use of infrared excitation in conjunction with an efficient two-photon absorbing dye and a photosensitizer in photodynamic therapy. SUMMARY BACKGROUND DATA An efficient two-photon absorbing dye is excited by short infrared (800 nm) laser pulses, which transfer its energy to the photosensitizer and the photosensitizer, in turn, generates the singlet oxygen. METHODS A new approach to photodynamic cancer therapy based on the strong two-photon absorption of certain newly developed organic molecules. Near infrared pulsed laser light efficiently excites these molecules which, in turn, transfer the energy to the photosensitizer used in photodynamic therapy. RESULTS A newly synthesized two-photon absorbing dye 4-[N-(2-hydroxyethyl)-N-(methyl) amino phenyl]-4'-(6-hydroxyhexyl sulfonyl)stilbene (APSS), which exhibits a strong two-photon absorption at 800 nm, and upconverted fluorescence at 520 nm, in solution in the presence of a photosensitizer was found to generate singlet oxygen under infrared excitation (800 nm). The generation of singlet oxygen in a reaction system containing two-photon absorbing dye and photosensitizer under infrared excitation has been chemically detected by using ADPA (9,10-anthracenedipropionic acid) as singlet oxygen detector. CONCLUSIONS The efficient two-photon absorption of certain chromophores can be used to extend photodynamic therapy to the near infrared spectral region. Whereas the photosensitizer itself may not exhibit two-photon absorption, it could be used in conjunction with one of these new chromophores. The chromophores can act as "photon harvesters" whereby they absorb two photons of near infrared light and transfer the energy to the photosensitizer, which can generate singlet oxygen in the presence of atmospheric oxygen.
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Affiliation(s)
- J D Bhawalkar
- Department of Chemistry State University of New York at Buffalo, NY 14260-3000, USA
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He GS, Bhawalkar JD, Zhao CF, Park CK, Prasad PN. Two-photon-pumped cavity lasing in a dye-solution-filled hollow-fiber system. Opt Lett 1995; 20:2393. [PMID: 19865230 DOI: 10.1364/ol.20.002393] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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