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Yin YC, Yang JT, Luo JD, Lu GX, Huang Z, Wang JP, Li P, Li F, Wu YC, Tian T, Meng YF, Mo HS, Song YH, Yang JN, Feng LZ, Ma T, Wen W, Gong K, Wang LJ, Ju HX, Xiao Y, Li Z, Tao X, Yao HB. A LaCl 3-based lithium superionic conductor compatible with lithium metal. Nature 2023; 616:77-83. [PMID: 37020008 DOI: 10.1038/s41586-023-05899-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 02/28/2023] [Indexed: 04/07/2023]
Abstract
Inorganic superionic conductors possess high ionic conductivity and excellent thermal stability but their poor interfacial compatibility with lithium metal electrodes precludes application in all-solid-state lithium metal batteries1,2. Here we report a LaCl3-based lithium superionic conductor possessing excellent interfacial compatibility with lithium metal electrodes. In contrast to a Li3MCl6 (M = Y, In, Sc and Ho) electrolyte lattice3-6, the UCl3-type LaCl3 lattice has large, one-dimensional channels for rapid Li+ conduction, interconnected by La vacancies via Ta doping and resulting in a three-dimensional Li+ migration network. The optimized Li0.388Ta0.238La0.475Cl3 electrolyte exhibits Li+ conductivity of 3.02 mS cm-1 at 30 °C and a low activation energy of 0.197 eV. It also generates a gradient interfacial passivation layer to stabilize the Li metal electrode for long-term cycling of a Li-Li symmetric cell (1 mAh cm-2) for more than 5,000 h. When directly coupled with an uncoated LiNi0.5Co0.2Mn0.3O2 cathode and bare Li metal anode, the Li0.388Ta0.238La0.475Cl3 electrolyte enables a solid battery to run for more than 100 cycles with a cutoff voltage of 4.35 V and areal capacity of more than 1 mAh cm-2. We also demonstrate rapid Li+ conduction in lanthanide metal chlorides (LnCl3; Ln = La, Ce, Nd, Sm and Gd), suggesting that the LnCl3 solid electrolyte system could provide further developments in conductivity and utility.
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Affiliation(s)
- Yi-Chen Yin
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, China
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, China
| | - Jing-Tian Yang
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, China
| | - Jin-Da Luo
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, China
| | - Gong-Xun Lu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| | - Zhongyuan Huang
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, China
| | - Jian-Ping Wang
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, China
| | - Pai Li
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China
| | - Feng Li
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China
| | - Ye-Chao Wu
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, China
- Institute of Engineering Research, Hefei Gotion High-Tech Co. Ltd, Hefei, China
| | - Te Tian
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China
| | - Yu-Feng Meng
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China
| | - Hong-Sheng Mo
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, China
| | - Yong-Hui Song
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, China
| | - Jun-Nan Yang
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, China
| | - Li-Zhe Feng
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, China
| | - Tao Ma
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China
| | - Wen Wen
- Shanghai Synchroton Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
| | - Ke Gong
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China
| | - Lin-Jun Wang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China
| | - Huan-Xin Ju
- PHI China Analytical Laboratory, CoreTech Integrated Ltd, Nanjing, China
| | - Yinguo Xiao
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, China
| | - Zhenyu Li
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, China.
| | - Xinyong Tao
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, China.
| | - Hong-Bin Yao
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China.
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, China.
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Hu T, Meng L, Tan C, Luo C, He WB, Tu C, Zhang H, Du J, Nie H, Lu GX, Lin G, Tan YQ. P-524 Bi-allelic CFAP61 variants cause male infertility in humans and mice with severe oligoasthenoteratozoospermia. Hum Reprod 2022. [DOI: 10.1093/humrep/deac104.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
Are mutations in cilia and flagella-associated protein 61 (CFAP61) associated with human male infertility?
Summary answer
Bi-allelic variants ([NM_015585.4: c.1654C>T (p.R552C) and c.2911G>A (p.D971N), c.144-2A>G and c.1666G>A (p.G556R)] in CFAP61 were identified as contributory genetics factor in severe oligoasthenoteratozoospermia (OAT).
What is known already
Cfap61 knockout mice were infertile due to multiple morphological abnormalities of the sperm flagella (MMAF). However, so far there is no direct evidence that mutations of CFAP61 cause OAT and male infertility.
Study design, size, duration
Variant screening was performed by whole-exome sequencing (WES) from 325 infertile patients with OAT and 392 fertile individuals. A knockout mouse model was generate to confirm the candidate disease-causing gene, intracytoplasmic sperm injection (ICSI) was used to evaluate the efficiency of clinical treatment.
Participants/materials, setting, methods
A total 325 OAT-affected patients and 392 men with normal fertility were recruited from China. WES was performed, followed by Sanger sequencing validation. In silico bioinformatics predictions and in vitro functional analyses were performed to evaluate the impacts of candidate disease-causing variants. Hematoxylin and eosin (H&E) staining, electron microscopy, and immunofluorescence assays were performed to evaluate the sperm morphology. Two OAT-affected men with CFAP61 variants were treated by ICSI, and pregnancy outcomes were followed.
Main results and the role of chance
We identified bi-allelic CFAP61 variants [NM_015585.4: c.1654C>T (p.R552C) and c.2911G>A (p.D971N), c.144-2A>G and c.1666G>A (p.G556R)] in two (0.62%) of the 325 OAT-affected men. In silico bioinformatics analysis predicted that all four variants were deleterious, and in vitro functional analysis confirmed the deleterious effects of the mutants. Notably, H&E staining and electron microscopy analyses of the spermatozoa revealed multiple morphological abnormalities of sperm flagella, the absence of central pair microtubules, and mitochondrial sheath malformation in sperm flagella from man with CFAP61 variants. Further immunofluorescence assays revealed markedly reduced CFAP61 staining in the sperm flagella. In addition, Cfap61-deficient mice showed the OAT phenotype, suggesting that loss of function of CFAP61 was the cause of OAT. Two individuals accepted ICSI therapy using their own ejaculated sperm, and one of them succeeded in fathering a healthy baby.
Limitations, reasons for caution
Limitations include the lack of in vivo data from the one of patients, and the exact molecular mechanism should be further investigated.
Wider implications of the findings
Our findings indicate that CFAP61 is essential for spermatogenesis and that bi-allelic CFAP61 variants lead to OAT and male infertility in humans and mice. In addition, our results show that ICSI treatment can be recommended for CFAP61-related OAT.
Trial registration number
not applicable
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Affiliation(s)
- T Hu
- Central South University, Institute of Reproduction and Stem Cell Engineering- School of Basic Medical Science , Changsha, China
| | - L Meng
- Central South University, Institute of Reproduction and Stem Cell Engineering- School of Basic Medical Science , Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Clinical Research Center for Reproduction and Genetics in Hunan Province , Changsha, China
| | - C Tan
- Central South University, Institute of Reproduction and Stem Cell Engineering- School of Basic Medical Science , Changsha, China
| | - C Luo
- Central South University, Institute of Reproduction and Stem Cell Engineering- School of Basic Medical Science , Changsha, China
| | - W B He
- Central South University, Institute of Reproduction and Stem Cell Engineering- School of Basic Medical Science , Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Clinical Research Center for Reproduction and Genetics in Hunan Province , Changsha, China
| | - C Tu
- Central South University, Institute of Reproduction and Stem Cell Engineering- School of Basic Medical Science , Changsha, China
| | - H Zhang
- Central South University, Institute of Reproduction and Stem Cell Engineering- School of Basic Medical Science , Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Clinical Research Center for Reproduction and Genetics in Hunan Province , Changsha, China
| | - J Du
- Central South University, Institute of Reproduction and Stem Cell Engineering- School of Basic Medical Science , Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Clinical Research Center for Reproduction and Genetics in Hunan Province , Changsha, China
| | - H Nie
- Reproductive and Genetic Hospital of CITIC-Xiangya, Clinical Research Center for Reproduction and Genetics in Hunan Province , Changsha, China
| | - G X Lu
- Reproductive and Genetic Hospital of CITIC-Xiangya, Clinical Research Center for Reproduction and Genetics in Hunan Province , Changsha, China
| | - G Lin
- Central South University, Institute of Reproduction and Stem Cell Engineering- School of Basic Medical Science , Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Clinical Research Center for Reproduction and Genetics in Hunan Province , Changsha, China
| | - Y Q Tan
- Central South University, Institute of Reproduction and Stem Cell Engineering- School of Basic Medical Science , Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Clinical Research Center for Reproduction and Genetics in Hunan Province , Changsha, China
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Tan YH, Lu GX, Zheng JH, Zhou F, Chen M, Ma T, Lu LL, Song YH, Guan Y, Wang J, Liang Z, Xu WS, Zhang Y, Tao X, Yao HB. Lithium Fluoride in Electrolyte for Stable and Safe Lithium-Metal Batteries. Adv Mater 2021; 33:e2102134. [PMID: 34480366 DOI: 10.1002/adma.202102134] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 07/22/2021] [Indexed: 06/13/2023]
Abstract
Electrolyte engineering via fluorinated additives is promising to improve cycling stability and safety of high-energy Li-metal batteries. Here, an electrolyte is reported in a porous lithium fluoride (LiF) strategy to enable efficient carbonate electrolyte engineering for stable and safe Li-metal batteries. Unlike traditionally engineered electrolytes, the prepared electrolyte in the porous LiF nanobox exhibits nonflammability and high electrochemical performance owing to strong interactions between the electrolyte solvent molecules and numerous exposed active LiF (111) crystal planes. Via cryogenic transmission electron microscopy and X-ray photoelectron spectroscopy depth analysis, it is revealed that the electrolyte in active porous LiF nanobox involves the formation of a high-fluorine-content (>30%) solid electrolyte interphase layer, which enables very stable Li-metal anode cycling over one thousand cycles under high current density (4 mA cm-2 ). More importantly, employing the porous LiF nanobox engineered electrolyte, a Li || LiNi0.8 Co0.1 Mn0.1 O2 pouch cell is achieved with a specific energy of 380 Wh kg-1 for stable cycling over 80 cycles, representing the excellent performance of the Li-metal pouch cell using practical carbonate electrolyte. This study provides a new electrolyte engineering strategy for stable and safe Li-metal batteries.
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Affiliation(s)
- Yi-Hong Tan
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Gong-Xun Lu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Jian-Hui Zheng
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Fei Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026, China
- Monta Vista Energy Technologies Corporation, Hefei, 230601, China
| | - Mei Chen
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Tao Ma
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Lei-Lei Lu
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Yong-Hui Song
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Yong Guan
- National Synchrotron Radiation Laboratory University of Science and Technology of China, Hefei, 230026, China
| | - Junxiong Wang
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zheng Liang
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wen-Shan Xu
- Monta Vista Energy Technologies Corporation, Hefei, 230601, China
| | - Yuegang Zhang
- Department of Physics, Tsinghua University, Beijing, 100084, China
| | - Xinyong Tao
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Hong-Bin Yao
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026, China
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Xu QM, Fang F, Wu SH, Shi ZQ, Liu Z, Zhoa YJ, Zheng HW, Lu GX, Kong HR, Wang GJ, Ai L, Chen MX, Chen JX. Dendritic cell TLR4 induces Th1-type immune response against Cryptosporidium parvum infection. Trop Biomed 2021; 38:172-179. [PMID: 33797542 DOI: 10.47665/tb.38.1.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The objective of this study was to investigate the mechanism of Toll-like receptor (TLR4)- mediated dendritic cell (DC) immune against Cryptosporidium parvum infection. C. parvum sporozoites were labeled with 5,6-carboxyfluorescein diacetate succinimidyl ester. Murine bone marrow-derived DCs were isolated, and divided into TLR4 antibody blocking (TAB; infected with 2 × 105 labeled sporozoites and 0.5 μg TLR4 blocking antibody), TLR4 antibody unblocking (TAU; infected with 2 × 105 labeled sporozoites), and blank control (BC; with 1.5 mL Roswell Park Memorial Institute 1640 medium) groups. The adhesion of Cryptosporidium sporozoites to DCs and CD11c+ levels were examined by fluorescence microscopy and flow cytometry. Male KM mice were orally injected with C. parvum. The proliferation of T lymphocytes in spleen, expression of cytokines in peripheral blood, and TLR4 distribution features in different organs were further determined by immunohistochemistry. A significantly higher expression of CD11c+ and higher C. parvum sporozoite adhesion were found in the TAU group compared with other groups. The expression of CD4+CD8- /CD8+CD4- in the spleen were obviously differences between the TAB and TAU groups. The expression of TLR4, interleukin IL-4, IL-12, IL-18 and IFN-γ improved in the TAU group compared with TAB group. Higher expression of TLR4 was detected in the lymph nodes of mice in the TAU group, with pathological changes in the small intestine. Hence, TLR4 could mediate DCs to recognize C. parvum, inducing Th1 immune reaction to control C. parvum infection.
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Affiliation(s)
- Q M Xu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China
| | - F Fang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China
| | - S H Wu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China
| | - Z Q Shi
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China
| | - Z Liu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China
| | - Y J Zhoa
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China
| | - H W Zheng
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China
| | - G X Lu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China
| | - H R Kong
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China
| | - G J Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China
| | - L Ai
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China.,National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Center for Tropical Diseases Research, WHO Collaborating Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health and Family Planning Commission, Shanghai 200025, PR China
| | - M X Chen
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230036, PR China.,National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Center for Tropical Diseases Research, WHO Collaborating Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health and Family Planning Commission, Shanghai 200025, PR China.,Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, PR China
| | - J X Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Center for Tropical Diseases Research, WHO Collaborating Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health and Family Planning Commission, Shanghai 200025, PR China.,National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention-Shenzhen Center for Disease Control and Prevention Joint Laboratory for Imported Tropical Disease Control, Shanghai, 200025, PR China
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Li WN, Zhu L, Jia MM, Yin SL, Lu GX, Liu G. Missense mutation in DNAJB13 gene correlated with male fertility in asthenozoospermia. Andrology 2019; 8:299-306. [PMID: 31342671 DOI: 10.1111/andr.12685] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 06/28/2019] [Accepted: 06/28/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND The most common type of male infertility is asthenospermia. We cloned DnaJ heat shock protein family member B13 (Dnajb13/DNAJB13), a type II HSP40 family member that is highly expressed in the testis. DNAJB13 plays a crucial role in sperm flagellar function. OBJECTIVES The aim of this study was to investigate whether a correlation exists between DNAJB13 and low sperm motility in infertile men. MATERIALS AND METHODS In the present study, we performed a mutation screening of the DNAJB13 gene in 92 idiopathic asthenozoospermia patients and 200 men with normal fertility. Additionally, we used immunoelectron microscopy, co-immunoprecipitation, mass spectrometric detection, indirect immunofluorescence assay, transmission electron microscopy studies, isobaric tags for relative and absolute quantitation, and multiple reaction monitoring studies to analyze changes in DNAJB13 protein. RESULTS A novel c.106T>C mutation of DNAJB13 was present in nearly 10% (9/92) of idiopathic asthenozoospermia patients and was absent in 200 fertile men. A computer-assisted sperm analyzer and transmission electron microscopy analysis using samples from 9 patients with DNAJB13 mutations demonstrated that most spermatozoa were immotile due to sperm tail defects. Multiple reaction monitoring results indicated that DNAJB13 protein levels were reduced after gene mutation. We achieved a pregnancy rate of 100% in 8 patients with DNAJB13 mutations using ICSI. DISCUSSION AND CONCLUSION The DNAJB13 heterozygous variant may affect fertility. ICSI can help these patients with low fertility to father children.
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Affiliation(s)
- W N Li
- Hunan Guangxiu Hi-tech Life Technology Co., Ltd., Changsha, China.,Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - L Zhu
- The Xiangtan Central Hospital, Yuhu District, Xiangtan, China
| | - M M Jia
- Shanxi Provincial Maternal and Child Health Care Hospital, Yanta District, Xi'an, China
| | - S L Yin
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - G X Lu
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China.,The Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha, China
| | - G Liu
- The Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha, China
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Xiong B, Tan K, Tan YQ, Gong F, Zhang SP, Lu CF, Luo KL, Lu GX, Lin G. Using SNP array to identify aneuploidy and segmental imbalance in translocation carriers. Genom Data 2014; 2:92-5. [PMID: 26484079 PMCID: PMC4535754 DOI: 10.1016/j.gdata.2014.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 05/14/2014] [Accepted: 05/15/2014] [Indexed: 11/06/2022]
Abstract
Translocation is one of the more common structural rearrangements of chromosomes, with a prevalence of 0.2%. The two most common types of chromosomal translocations, Robertsonian and reciprocal, usually result in no obvious phenotypic abnormalities when balanced. However, these are still associated with reproductive risks, such as infertility, spontaneous abortion and the delivery of babies with mental retardation or developmental delay. In recent years, array-based whole-genome amplification (WGA) technologies, including microarray comparative genomic hybridization (array CGH; aCGH) and single-nucleotide polymorphism (SNP) micro-arrays, have enabled the screening of every chromosome for whole-chromosome aneuploidy and segmental imbalance. These techniques have been shown to have clinical application for translocation carriers. Promising studies have indicated that array-based PGD of translocation carriers can lead to transfer pregnancy rates of 45–70% [2]. In addition to genetic testing techniques, the embryo biopsy stage (polar body, cleavage embryo or blastocyst) and the mode of embryo transfer (fresh or frozen embryos) can affect the outcome of PGD. It is now generally recommended that blastomere biopsy should be replaced by blastocyst biopsy to avoid a high mosaic rate and biopsy-related damage to cleavage-stage embryos, which might affect embryo development. However, more clinical data are required to confirm that the technique of SNP array-based PGD (SNP-PGD) combined with trophectoderm (TE) biopsy and frozen embryo transfer (FET) is superior to traditional FISH-PGD combined with Day 3 (D3) blastomere biopsy and fresh embryo transfer.
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Affiliation(s)
- B Xiong
- National Engineering and Research Center of Human Stem Cell, Changsha 410078, China
| | - K Tan
- National Engineering and Research Center of Human Stem Cell, Changsha 410078, China ; Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha 410078, China ; Key laboratory of Stem Cells and Reproductive Engineering, Ministry of Health, Changsha 410078, China
| | - Y Q Tan
- Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha 410078, China ; Key laboratory of Stem Cells and Reproductive Engineering, Ministry of Health, Changsha 410078, China ; Reproductive and Genetic Hospital of Citic-Xiangya, Changsha 410078, China
| | - F Gong
- Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha 410078, China ; Key laboratory of Stem Cells and Reproductive Engineering, Ministry of Health, Changsha 410078, China ; Reproductive and Genetic Hospital of Citic-Xiangya, Changsha 410078, China
| | - S P Zhang
- Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha 410078, China ; Key laboratory of Stem Cells and Reproductive Engineering, Ministry of Health, Changsha 410078, China ; Reproductive and Genetic Hospital of Citic-Xiangya, Changsha 410078, China
| | - C F Lu
- Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha 410078, China ; Key laboratory of Stem Cells and Reproductive Engineering, Ministry of Health, Changsha 410078, China ; Reproductive and Genetic Hospital of Citic-Xiangya, Changsha 410078, China
| | - K L Luo
- Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha 410078, China ; Key laboratory of Stem Cells and Reproductive Engineering, Ministry of Health, Changsha 410078, China ; Reproductive and Genetic Hospital of Citic-Xiangya, Changsha 410078, China
| | - G X Lu
- National Engineering and Research Center of Human Stem Cell, Changsha 410078, China ; Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha 410078, China ; Key laboratory of Stem Cells and Reproductive Engineering, Ministry of Health, Changsha 410078, China ; Reproductive and Genetic Hospital of Citic-Xiangya, Changsha 410078, China
| | - G Lin
- National Engineering and Research Center of Human Stem Cell, Changsha 410078, China ; Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha 410078, China ; Key laboratory of Stem Cells and Reproductive Engineering, Ministry of Health, Changsha 410078, China ; Reproductive and Genetic Hospital of Citic-Xiangya, Changsha 410078, China
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Li XH, Ouyang Y, Lu GX. Value of transvaginal sonography in diagnosing heterotopic pregnancy after in-vitro fertilization with embryo transfer. Ultrasound Obstet Gynecol 2013; 41:563-569. [PMID: 23610036 DOI: 10.1002/uog.12341] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/12/2012] [Indexed: 06/02/2023]
Abstract
OBJECTIVES To assess the value of transvaginal sonography (TVS) in the diagnosis of heterotopic pregnancy (HP) in the first trimester after in-vitro fertilization with embryo transfer (IVF-ET). METHODS This was a retrospective review of women undergoing IVF-ET between January 2005 and December 2011. Women were diagnosed with an HP using TVS if a visible intrauterine gestational sac was observed with any of the following: (i) an inhomogeneous adnexal mass; (ii) an empty extrauterine gestational sac seen as a hyperechoic ring; or (iii) a yolk sac and/or fetal pole with or without cardiac activity in an extrauterine sac. RESULTS Overall, 16 483 consecutive women who underwent IVF had TVS during the study. Of these, 174 cases were diagnosed on TVS as having an HP, and 10 cases were missed. Fifty-two cases were treated expectantly and were excluded from the analysis. Three types of ultrasonographic presentation of ectopic pregnancy (EP) were seen in HP patients, with a gestational sac found in 70 cases, a ring sign in 21 and an adnexal mass in 31. The sensitivity and specificity of TVS for the detection of HP were 92.4 and 100%, respectively, with positive and negative predictive values of 100 and 99.9%. The HP cases comprised 103 tubal EPs and 29 non-tubal EPs. In 93 patients (70.5%), their intrauterine pregnancy resulted in a live birth, 37 patients (28.0%) suffered an early miscarriage and two patients (1.5%) had a late miscarriage. CONCLUSION Early TVS performed by an experienced sonographer has a high sensitivity for making the correct diagnosis of HP after IVF-ET.
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Affiliation(s)
- X H Li
- Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha, Hunan, China
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Peng CY, Long XY, Lu GX. Association of AR rs6152G/A gene polymorphism with susceptibility to polycystic ovary syndrome in Chinese women. Reprod Fertil Dev 2010; 22:881-5. [PMID: 20450840 DOI: 10.1071/rd09190] [Citation(s) in RCA: 9] [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] [Received: 08/13/2009] [Accepted: 12/10/2009] [Indexed: 11/23/2022] Open
Abstract
Hyperandrogenism is a central feature of polycystic ovary syndrome (PCOS). Androgens act via the androgen receptor (AR). The rs6152G/A AR gene polymorphism has been reported to be associated with male pattern baldness (MPB), which is a common characteristic of males in PCOS families. Therefore, we investigated the relationship between the rs6152G/A polymorphism and PCOS in Han Chinese women. The rs6152G/A AR gene polymorphism was screened by restriction fragment length polymorphism (RFLP) in 224 PCOS women and 223 control subjects from the Reproductive and Genetic Hospital of CITIC-XIANGYA in China. There was a significantly higher prevalence of genotypes containing the A allele in PCOS patients compared with controls (P < 0.05). Patients carrying the rs6152A allele had a 1.608-fold greater risk of developing polycystic ovary syndrome compared with rs6152GG homozygotes (OR = 1.608, CI = 1.008-2.597, P < 0.05). In conclusion, the individuals carrying the rs6152A allele had significantly higher susceptibility to polycystic ovary syndrome than those that were GG homozygotes.
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Affiliation(s)
- C Y Peng
- Institute of Human Reproduction and Stem Cell Engineering, Central South University, 110 Xiangya Road, Changsha, Hunan, China
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9
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Yuan D, Xie P, Lu GX, Lin G. ASCR-013 Differentiation of human embryonic stem cells to neural progenitor cells and neurons on human feeder cells. Reprod Biomed Online 2008. [DOI: 10.1016/s1472-6483(10)61548-9] [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: 10/19/2022]
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10
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Zhang QJ, Lu GX. EMB-002 Borealin is specifically expressed in ES cells and involved in mouse embryo development. Reprod Biomed Online 2008. [DOI: 10.1016/s1472-6483(10)61553-2] [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: 10/19/2022]
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11
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Yang S, Lin G, Deng LY, Jiang XL, Du LL, Zhou D, Yuan D, Sun Y, Lu GX. ASCR-015 NTERA-2 cells as a model for studying cancer stem cells. Reprod Biomed Online 2008. [DOI: 10.1016/s1472-6483(10)61550-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Chen TJ, Du J, Lu GX. ASCR-011 Expression of Dppa2 during the differentiation of human embryonic stem cells. Reprod Biomed Online 2008. [DOI: 10.1016/s1472-6483(10)61546-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Li X, Liu W, Lu GX. AC-010 Value of β-HCG on day 14 post-IVF-embryo transfer in predicting pregnancy outcome. Reprod Biomed Online 2008. [DOI: 10.1016/s1472-6483(10)61514-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Li WN, Liu G, Lu GX. RG-010 Relationship between AR and TSARG6 gene, and apoptosis in human spermatogenic cells. Reprod Biomed Online 2008. [DOI: 10.1016/s1472-6483(10)61585-4] [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: 10/19/2022]
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15
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Peng CY, Long XY, Lu GX. EL-001 Rs6152G/a polymorphism of androgen receptor gene and polycystic ovary syndrome. Reprod Biomed Online 2008. [DOI: 10.1016/s1472-6483(10)61567-2] [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: 10/19/2022]
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16
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Liu YB, Nie DS, Huang YL, Qiu QM, Lu GX. RG-008 RNAi-mediated knock-down of gene MN6amt1 reduces cell proliferation and decreases protein translation. Reprod Biomed Online 2008. [DOI: 10.1016/s1472-6483(10)61583-0] [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: 10/19/2022]
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17
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Peng L, Wang J, Lu GX. ASCR-007 Chronological change of gene expression during the transdifferentiation from human amniotic epithelial cells to pancreatic endocrine cells in vitro. Reprod Biomed Online 2008. [DOI: 10.1016/s1472-6483(10)61542-8] [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: 10/19/2022]
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18
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Dai C, Miao CX, Lu GX. ASCR-012 Characterization of the transcription factors for the CDCA8 promoter. Reprod Biomed Online 2008. [DOI: 10.1016/s1472-6483(10)61547-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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19
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Chen TJ, Du J, Li LY, Li W, Lu GX. RG-004 Detection of mutations in the dystrophin gene via DHPLC screening. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60537-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Liang YH, Li W, Ye Y, Li L, Lu GX. RG-008 Mutation screening of TGF-β1 gene in a Chinese patient with Camurati–Engelmann disease. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60541-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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21
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Yang S, Lin G, Luo SW, OuYang Q, Zhou J, Lu GX. ASCR-001 Characteristics of new karyotypically abnormal human embryonic stem cells. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60498-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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22
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Tang Y, Xiao HM, Gong MD, Lin G, Lu GX. AC-021 Elevated progesterone at early follicular phase results in a lower ongoing pregnancy rate after IVF using gonadotrophin-releasing hormone agonist down-regulation short protocol. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60469-0] [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: 11/17/2022]
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23
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Xiang Y, Zhang QJ, Lu GX. RG-006 Identification of one novel mouse Rcet3 gene related to Cres subgroup of the family 2 cystatins. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60539-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Zhang QJ, Xiang Y, Lu GX. ASCR-007 ESPRG3: a novel chromosomal passenger taking part in ES self-renewal and spermatogenesis. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60504-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Hu LS, Cheng LM, Wang J, Lu GX. ASCR-006 Effects of human yolk sac-derived endothelial cells on expansion of haematopoietic stem/progenitor cells from cord blood. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60503-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Wang J, Hu LS, Sun X, Lu GX. ASCR-015 Suspending-culture supports transdifferentiation from human amniotic epithelial cells to insulin-secreting cells. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60512-9] [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: 11/15/2022]
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27
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Xiao HM, Gong F, Mao ZH, Zhang H, Xiao XM, Li XH, Lu GX. AC-002 Analysis of 94 ectopic pregnancies after IVF. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60450-1] [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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28
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Gong W, Xiao H, Gong F, Zhang H, Lu GX. AC-032 Comparison of two hydrosalpinx treatment methods on IVF and embryo transfer: transvaginal aspiration and bilateral proximal tubal occlusion. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60480-x] [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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29
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Nie DS, Lu GX, Xiang Y. ASCR-002 Cloning and preliminary functional study of a novel stem cell-specific gene encoding a protein methyltransferase. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60499-9] [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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Ou-Yang Q, Lin G, Tan YQ, Zhang SP, Liu T, Chen D, Xie PY, Lu GX. ASCR-010 Human embryonic stem cell lines derived from monopronuclear and tripronuclear blastocysts. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60507-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Li W, Gao X, Li L, Xiao H, Lu GX. RG-010 Prenatal diagnosis of hidrotic ectodermal dysplasia in a Chinese family. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60543-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Zong Y, Gong F, Lu CF, Liu W, Lu GX. AC-022 Evaluation of the pregnancy outcome in three frozen–thawed embryo transfer cycles. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60470-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Li LJ, Lu GX. How medical ethical principles are applied in treatment with artificial insemination by donors (AID) in Hunan, China: effective practice at the Reproductive and Genetic Hospital of CITIC-Xiangya. J Med Ethics 2005; 31:333-7. [PMID: 15923480 PMCID: PMC1734161 DOI: 10.1136/jme.2004.007831] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
This paper investigates the efficiency of application of medical ethics principles in the practice of artificial insemination by donors (AID) in China, in a culture characterised by traditional ethical values and disapproval of AID. The paper presents the ethical approach to AID treatment as established by the Reproduction and Genetics Hospital of CITIC-Xiangya (CITIC Hunan-Yale Approach) in the central southern area of China against the social ethical background of China and describes its general features. The CITIC-Xiangya Approach facilitates the implementation of ethical relations between clinicians and patients participating in AID treatment procedures in Hunan-Yale.
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Affiliation(s)
- L J Li
- Institute of Human Reproduction and Stem Cell Engineering of Central South University, 84 Xiangya road, Changsha, China.
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34
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Xiang Y, Nie DS, Lu GX. Cloning of a novel gene,Cymg1, related to family 2 cystatins and expressed at specific stages of mouse testis development. J Genet 2004; 83:257-63. [PMID: 15689628 DOI: 10.1007/bf02717895] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have cloned a novel gene, Cymg1 (GenBank accession number AY600990), from a mouse testis cDNA library. Cymg1 is located in 2G3 of mouse chromosome 2. The cDNA includes an open reading frame that encodes 141 amino acid residues. The encoded polypeptide has a cysteine protease inhibitor domain found in the family 2 cystatins but lacks critical consensus sites important for cysteine protease inhibition. These characteristics are seen in the proteins of the CRES subfamily of the family 2 cystatins which are expressed specifically in the reproductive tract. CYMG1 protein shows 44% identity with mouse CRES and 30% identity with mouse cystatin C. Northern blot analysis showed that the Cymg1 gene was specifically expressed in adult mouse testis. RT-PCR also showed that Cymg1 was expressed in testis and spermatogonial cells. Cymg1 expression level varied in the different developmental stages of mouse testis, and were coincidental with spermatogenesis and sex maturation. These results indicate that Cymg1 may play important roles in mouse spermatogenesis and sex maturation.
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Affiliation(s)
- Y Xiang
- Human Reproductive and Stem Cell Engineering Institute, Central South University, Changsha 410078, People's Republic of China
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35
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Liu SF, Li LY, Fu JJ, Liu G, Xing XW, Lu GX. [Rapid identification of human testis spermatocyte apoptosis-related gene, TSARG2, by nested PCR and draft human genome searching]. Sheng Wu Hua Xue Yu Sheng Wu Wu Li Xue Bao (Shanghai) 2002; 34:378-82. [PMID: 12019456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Cloning apoptosis-related novel genes is a key to further understanding of apoptosis mechanism and the biology process of germ cells, and is of momentous significance on clarifying physiological and pathological process of spermatogenesis. To rapidly attain human novel gene full-length cDNA sequence, the gene-specific primers and the vector-specific primers were designed for nested PCR, and draft human genome searching was performed to rapidly identify the TSARG2 (GenBank accession number AY040204) 5' end from a human testis cDNA library, by using a cDNA fragment (GenBank accession number BE644542) as an electronic probe, which was significantly changed in cryptorchidism and represented a novel gene. Furthermore, a mouse homologue of this gene was identified (GenBank accession number AF395083) by lab on-line. TSARG2 with a 1 233 bp length was composed of 6 exons and spanned about 115 kb of genomic DNA, The putative protein encoded by this gene was 305 amino acid with a theoretical molecular weight of 34 751 dalton and did not share significant homology with any known protein in databases. TSARG2 was expressed in many tissues and mapped to chromosome 4q33-34.1 by database analyses. Therefore, we propose that nested-PCR and draft human genome searching are rapid, sensitive, accurate and efficient method for isolating gene 5' end, even full-length gene from cDNA library.
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Affiliation(s)
- S F Liu
- Human Reproductive Engineering Institue, Central South University Xiangya Medical School, Changsha 410078, China
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Liu W, Lu GX. [Localization and position effect of human APPSWE gene on transgenic mice by means of in situ fluorescence hybridization]. Yi Chuan Xue Bao 2001; 28:827-31. [PMID: 11582741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
In situ fluorescence hybridization (FISH) was used to study the integration and localization of human APPSWE gene on chromosomes of transgenic mice. It was found that in 2 founder mice, 34 and 36 metaphases of 80 metaphases observed had shown obvious specific hybridizing signals, the detection rates were 42.5% and 45%, respectively; meanwhile, in 1 F1 and 1 F2 mice, 33 and 30 metaphases out of 100 metaphases observed had specific hybridizing signals, the detection rates were 33% and 30%, respectively. The transgenes were localized on chromosome 8, 1, 17 and 2. The results indicated that transgene APPSWE were integrated stably into the chromosomes of transgenic mice and could be transmitted to offsprings through germ cells. The transgenes were randomly integrated into multiple sites of mice chromosomes. Meanwhile, the phenotypes of transgenic mice were also studied and different integrated sites had obvious effects on the pheonotypes.
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Affiliation(s)
- W Liu
- Human Reproductive Engineering Lab of Xiangya Medical College, Central South University, Changsha 410078, China
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37
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Gong F, Li XR, Lu GX. [A case of embryo reduction of a five gestation pregnancy]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:266, 273. [PMID: 12536702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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38
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Luo K, Fan LQ, Lu GX. [Establishment of two-dimensional gel electrophoretic protein map of human spermatozoa]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:181-4. [PMID: 12536666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To establish the method of 2-dimensional electrophoresis(2-DE) for proteins of human spermatozoa and to construct a protein map of human spermatozoa. METHODS The sperm pellet was prepared with simple Percoll layer protocol. We studied the effects of various sample preparation methods, loading quantities and isoelectric-focusing protocols on the quality of silver-stained 2-DE map, and constructed a primary protein map of human spermatozoa. RESULT Up to 703 protein spots were acquired with sample preparation Method I while only 194-210 spots with Method II. With immobilized pH gradients and sodium dodecyl sulfate-polyacrylamide gel electrophoresis(IPG-DALT) we could acquire over 700 spots while only 280-300 with isoelectric focusing and sodium dodecyl sulfate-polyacrylamide gel electrophoresis(ISO-DALT). CONCLUSION It is satisfactory to lyse sperm with sample preparation Method I and to separate sperm proteins by IPG-DALT for establishing 2-D map of human sperm.
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Affiliation(s)
- K Luo
- Human Reproductive Engineering Laboratory, Hunan Medical College, Central South University, Changsha 410078, China
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39
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Zhu WB, Lu GX. [Establishment of the data base of large human sperm bank and its application]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:525-8. [PMID: 12516393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
On the basis of Access 97, we set up the first computer management system for human sperm bank in China, which dealt with various information and data of sperm bank and of treatment for AID(artificial insemination donor) patients. The system and its application, characteristics and significance were discussed in this article.
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Affiliation(s)
- W B Zhu
- Reproductive Engineering Laboratory, Hunan Medical University, Changsha 410078
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Lu CF, Lu GX. [Preliminary study on establishing the technique of human embryo reconstruction]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:inside back cover. [PMID: 12212268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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41
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Xu LL, Zhang ZS, Sun DX, Lu GX, Lu HL. Successful pregnancy and birth after transfer of donated embryo fertilized in vitro. Chin Med J (Engl) 1988; 101:876-8. [PMID: 3150734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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