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Zhou Y, Jiao YJ, Wei Y, Yuan PB, Wang XJ, Zhao YY. [Perinatal outcomes of dichorionic triamniotic triplet pregnancy]. Zhonghua Fu Chan Ke Za Zhi 2020; 55:764-769. [PMID: 33228347 DOI: 10.3760/cma.j.cn112141-20200422-00346] [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 analyze the perinatal outcomes in different methods of multifetal pregnancy reduction in dichorionic triamniotic (DCTA) triplet pregnancy. Methods: A retrospective analysis was performed on 57 cases of DCTA triplets in Peking University Third Hospital from January 1, 2010 to January 1, 2020, including 27 cases in expectant pregnancy group and 30 cases in selective fetal reduction (FR) group. The selective FR group was further divided into 3 subgroups according to different FR methods:retaining monochorionic dichorionic (MCDA) group, retaining dichorionic dichorionic (DCDA) group, and retaining singleton group. The perinatal outcomes of expectant pregnancy group and 3 subgroups of selective FR group were compared. Results: The gestational weeks in selective FR group was (34.5±5.7) weeks, and full-term delivery rate was 53% (16/30), respectively higher than those of the expectant pregnancy group (29.9±6.0) weeks and 7% (2/27). The miscarriage rate of the selective FR group was 10% (3/30), lower than that of the expectant pregnancy group (33%, 9/27). The differences between the two groups were statistically significant (all P<0.05). The ratios of pregnancy complications and newborn admission to neonatal ICU (NICU) in the selective FR group were lower than those of the expectant pregnancy group (all P<0.05). In the selective FR group, the gestational weeks in retaining MCDA group (6 cases), retaining DCDA group (13 cases), and retaining singleton group (11 cases) were (32.2±4.3), (33.0±6.3), and (37.4±4.7) weeks; the miscarriage rates were 1/6, 1/13, and 1/11; the premature delivery rates were 4/6, 7/13, and 0/11; the full-term delivery rates were 1/6, 5/13, and 10/11; pregnancies with at least 1 survivor rates were 5/6, 12/13, and 10/11; NICU occupancy rates were 6/8, 9/18 and 0/10, respectively. The retaining singleton group had the highest rate of full-term delivery and the lowest rate of NICU occupancy. Compared with other groups, the differences were statistically significant (all P<0.05). The full-term delivery rate was significantly higher in the retaining DCDA group than that of the expectant pregnancy group (P<0.05). Conclusions: The risk of DCTA triplet pregnancy is high. Reduction of the MCDA pair to singleton has the highest rate of full-term delivery and the lowest rate of NICU occupancy. For pregnant women who wish to retain twin pregnancy, the risk should be fully informed, and consider reduction of one fetus of the MCDA and retaining DCDA twins to continue pregnancy.
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Affiliation(s)
- Y Zhou
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Y J Jiao
- Department of Obstetrics, Tongzhou District Maternal and Child Health Hospital, Beijing 101100, China
| | - Y Wei
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - P B Yuan
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - X J Wang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Y Y Zhao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
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Lin H, Ji YH, Chen XL, Zhu SW, Sun J, Huang CY, Jiao YJ. [Sero-prevalence of Babesia infection among voluntary blood donors in Jiangsu Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2019; 31:516-518. [PMID: 31713382 DOI: 10.16250/j.32.1374.2017209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate the sero-positivity of Babesia infection in voluntary blood donors in Jiangsu region, so as to provide the evidence for transfusion safety. METHODS A total of 950 blood samples were collected from voluntary blood donors in Jiangsu Provincial Blood Center from February to May, 2017, and detected by double antigen sandwich ELISA targeting peptides derived from B. microti-secreted antigen 1 (BmSA1). The positive samples were confirmed by microscopy and nested-PCR to determine parasitemia. The prevalence of anti-BmSA1 was analyzed between/among different genders, ages and occupations of the blood donors. RESULTS Of the 950 blood screened samples, 5 were positive for anti-BmSA1, and the sero-prevalence of Babesia infection was 0.53%. The 5 samples were all negative by microscopy and nested-PCR. There were no gender- (χ2 = 0.01, P =0.92) or age-specific differences (χ2 = 0.11, P = 0.95) in the sero-prevalence of Babesia infection; however, there was an occupation-specific difference detected in the sero-prevalence of Babesia infection (χ2 = 11.93, P < 0.05). CONCLUSIONS Babesia infection is detected in voluntary blood donors in Jiangsu region, which should be paid much attention.
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Affiliation(s)
- H Lin
- Jiangsu Provincial Blood Center, Nanjing 210042, China
| | - Y H Ji
- Jiangsu Provincial Center for Diseases Control and Prevention, China
| | - X L Chen
- Jiangsu Provincial Blood Center, Nanjing 210042, China
| | - S W Zhu
- Jiangsu Provincial Blood Center, Nanjing 210042, China
| | - J Sun
- Jiangsu Provincial Blood Center, Nanjing 210042, China
| | - C Y Huang
- Jiangsu Provincial Blood Center, Nanjing 210042, China
| | - Y J Jiao
- Jiangsu Provincial Center for Diseases Control and Prevention, China
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Wen CHP, Xu HC, Yao Q, Peng R, Niu XH, Chen QY, Liu ZT, Shen DW, Song Q, Lou X, Fang YF, Liu XS, Song YH, Jiao YJ, Duan TF, Wen HH, Dudin P, Kotliar G, Yin ZP, Feng DL. Unveiling the Superconducting Mechanism of Ba_{0.51}K_{0.49}BiO_{3}. Phys Rev Lett 2018; 121:117002. [PMID: 30265111 DOI: 10.1103/physrevlett.121.117002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 07/08/2018] [Indexed: 05/12/2023]
Abstract
The mechanism of high superconducting transition temperatures (T_{c}) in bismuthates remains under debate despite more than 30 years of extensive research. Our angle-resolved photoemission spectroscopy studies on Ba_{0.51}K_{0.49}BiO_{3} reveal an unexpectedly 34% larger bandwidth than in conventional density functional theory calculations. This can be reproduced by calculations that fully account for long-range Coulomb interactions-the first direct demonstration of bandwidth expansion due to the Fock exchange term, a long-accepted and yet uncorroborated fundamental effect in many body physics.Furthermore, we observe an isotropic superconducting gap with 2Δ_{0}/k_{B}T_{c}=3.51±0.05, and strong electron-phonon interactions with a coupling constant λ∼1.3±0.2. These findings solve a long-standing mystery-Ba_{0.51}K_{0.49}BiO_{3} is an extraordinary Bardeen-Cooper-Schrieffer superconductor, where long-range Coulomb interactions expand the bandwidth, enhance electron-phonon coupling, and generate the high T_{c}. Such effects will also be critical for finding new superconductors.
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Affiliation(s)
- C H P Wen
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - H C Xu
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - Q Yao
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - R Peng
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - X H Niu
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - Q Y Chen
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - Z T Liu
- CAS Center for Excellence in Superconducting Electronics (CENSE), Shanghai 200050, China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, Shanghai 200050, China
| | - D W Shen
- CAS Center for Excellence in Superconducting Electronics (CENSE), Shanghai 200050, China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, Shanghai 200050, China
| | - Q Song
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - X Lou
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - Y F Fang
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - X S Liu
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - Y H Song
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
| | - Y J Jiao
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
| | - T F Duan
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
| | - H H Wen
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
| | - P Dudin
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - G Kotliar
- Department of Physics, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Z P Yin
- Department of Physics and Center for Advanced Quantum Studies, Beijing Normal University, Beijing 100875, China
| | - D L Feng
- State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, People's Republic of China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
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Zhang XQ, Jiao YJ, Yang ML. [Mast cell in the gingival cancer: histochemical and electron microscopical study]. Shanghai Kou Qiang Yi Xue 2000; 9:222-4. [PMID: 15014764] [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: 04/29/2023]
Abstract
OBJECTIVE To observe the relation between mast cells and gingival cancer. METHODS The gingival cancer tissue of 24 cases and normal gingival tissue of 7 cases were studied with histochemical and electron microscopical methods. RESULTS The results showed that the number of mast cells around the periphery of gingival cancer tissue increased significantly. The histochemical properties of these mast cells differed from the normal gingival tissue. The former did not contain heparin which was present normally. Under electron microscope, according to the characteristic ultrastructure, the mast cells around the gingival cancer were TC mast cells. Some of them showed the appearance of degranulation, and contacted intimately with cancer cells, lymphocytes and macrophages. CONCLUSION These results suggested that together with lymphocytes, macrophages, the mast cell contributed to the defense reaction to the cancer tissue.
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Affiliation(s)
- X Q Zhang
- Department of Stomatology, Shanxi Medical University, Shanxi 030001, China
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