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Abstract
During mammalian preimplantation development, stimulation of zygotic genome activation (ZGA) and transposable elements (TEs) shapes totipotency profiling. A rare mouse embryonic stem cells (mESCs) subpopulation is capable of transiently entering a state resembling 2-cell stage embryos, with subtypes of TEs expressed and ZGA genes transiently activated. In this study, we found that deletion of H2A.X in mESCs led to a significant upregulation of ZGA genes and misregulated TEs. ChIP-seq analysis indicated a direct association of H2A.X at the Dux locus for silencing the Dux gene and its downstream ZGA genes in mESCs. We also demonstrated that histone variant H2A.X is highly enriched in human cleavage embryos when ZGA genes and TEs are active. Therefore, we propose that H2A.X plays an important role in regulating ZGA genes and TEs to establish totipotency.
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Affiliation(s)
- Kai-Yi Sun
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, China
| | - Shi-Meng Guo
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, China
| | - Gui-Ping Cheng
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, China
| | - Ying Yin
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, China
| | - Ximiao He
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, China
| | - Li-Quan Zhou
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, China
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Tian Y, Sun KY, Meng TQ, Ye Z, Guo SM, Li ZM, Xiong CL, Yin Y, Li HG, Zhou LQ. Gut Microbiota May Not Be Fully Restored in Recovered COVID-19 Patients After 3-Month Recovery. Front Nutr 2021; 8:638825. [PMID: 34055851 PMCID: PMC8155354 DOI: 10.3389/fnut.2021.638825] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 03/29/2021] [Indexed: 12/30/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19) has infected over 124 million people worldwide. In addition to the development of therapeutics and vaccines, the evaluation of the sequelae in recovered patients is also important. Recent studies have indicated that COVID-19 has the ability to infect intestinal tissues and to trigger alterations of the gut microbiota. However, whether these changes in gut microbiota persist into the recovery stage remains largely unknown. Here, we recruited seven healthy Chinese men and seven recovered COVID-19 male patients with an average of 3-months after discharge and analyzed their fecal samples by 16S rRNA sequencing analysis to identify the differences in gut microbiota. Our results suggested that the gut microbiota differed in male recovered patients compared with healthy controls, in which a significant difference in Chao index, Simpson index, and β-diversity was observed. And the relative abundance of several bacterial species differed clearly between two groups, characterized by enrichment of opportunistic pathogens and insufficiency of some anti-inflammatory bacteria in producing short chain fatty acids. The above findings provide preliminary clues supporting that the imbalanced gut microbiota may not be fully restored in recovered patients, highlighting the importance of continuous monitoring of gut health in people who have recovered from COVID-19.
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Affiliation(s)
- Yu Tian
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai-Yi Sun
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tian-Qing Meng
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhen Ye
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shi-Meng Guo
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhi-Ming Li
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cheng-Liang Xiong
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Yin
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong-Gang Li
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li-Quan Zhou
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Wang L, Dai HL, Tang X, Yang YJ, Sun KY, Yu L. Predictive value of ABCD3 score combined with vascular stenosis in the progression of TIA to cerebral infarction. J BIOL REG HOMEOS AG 2021; 35:289-293. [PMID: 33565298 DOI: 10.23812/20-659-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- L Wang
- Department of Neurology, The No.2 Hospital of Baoding, Baoding, Hebei Province, China
| | - H L Dai
- Department of Neurology, The No.2 Hospital of Baoding, Baoding, Hebei Province, China
| | - X Tang
- Department of Ultrasonography, Baoding No.1 Hospital, Baoding, Hebei Province, China
| | - Y J Yang
- Department of Neurology, The No.2 Hospital of Baoding, Baoding, Hebei Province, China
| | - K Y Sun
- Department of Neurology, The No.2 Hospital of Baoding, Baoding, Hebei Province, China
| | - L Yu
- Department of Neurology, The No.2 Hospital of Baoding, Baoding, Hebei Province, China
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Sun KY, Gui XE, Deng D, Xiong Y, Deng LP, Gao SC, Zhang YX. [Clinicpathological features and survival of patients with AIDS related non-Hodgkin's lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2018; 38:97-101. [PMID: 28279031 PMCID: PMC7354166 DOI: 10.3760/cma.j.issn.0253-2727.2017.02.003] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
目的 分析艾滋病相关非霍奇金淋巴瘤(ARL)患者的临床特征及生存状态。 方法 回顾性分析53例ARL患者的临床资料,按1∶2随机配对对照研究方法,以106例普通非霍奇金淋巴瘤(NHL)患者为对照,比较两组患者的生存率。 结果 53例ARL患者的平均年龄为43(11~67)岁,诊断NHL时CD4+T细胞中位数为(146±20)个/µl。53例患者中B细胞来源者47例(88.7%),T细胞来源者6例(11.3%)。Ann Arbor分期Ⅲ~Ⅳ期者占52.8%(28/53);IPI评分中高危组和高危组患者比例分别为45.3%(24/53)和18.9%(10/53)。ARL诊断后放弃治疗者占37.7%(20/53),抗HIV治疗联合放化疗者占62.3%(33/53)。抗NHL治疗采用CHOP(环磷酰胺、长春新碱、表阿霉素、泼尼松)方案。ARL组患者的总生存(OS)时间显著短于对照组[(6.0±1.3)对(48.0±10.0)个月,P<0.05]。接受抗NHL治疗的患者中,ARL组(33例)和对照组(100例)患者的OS时间差异无统计学意义[(48.0±10.9)对(77.0±11.1)个月,P=0.816];ARL组患者1年OS率低于对照组(60.6%对83.0%,P<0.05),但两组患者的2年(53.5%对60.5%)、3年(48.1%对45.9%)和5年(39.1%对27.5%)OS率差异均无统计学意义(P值均>0.05)。 结论 ARL多见于青壮年,1年内病死率高,抗HIV治疗联合CHOP方案抗NHL治疗能显著改善ARL患者预后。
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Affiliation(s)
| | | | | | | | | | | | - Y X Zhang
- Department of Infectious Disease, Zhongnan Hospital of Wuhan University. Wuhan 430071, China
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Abstract
BACKGROUND Itraconazole has been used to treat fungal infections, in particular invasive fungal infections in infants or neonates in many countries. DATA SOURCES Literature search was conducted through Ovid EMBASE, PubMed, ISI Web of Science, CNKI and Google scholarship using the following key words: "pediatric" or "infant" or "neonate" and "fungal infection" in combination with "itraconazole". Based on the literature and our clinical experience, we outline the administration of itraconazole in infants in order to develop evidence-based pharmacotherapy. RESULTS Of 45 articles on the use of itraconazole in infancy, 13 are related to superficial fungal infections including tinea capitis, sporotrichosis, mucosal fungal infections and opportunistic infections. The other 32 articles are related to systemic fungal infections including candidiasis, aspergillosis, histoplasmosis, zygomycosis, trichosporonosis and opportunistic infections as caused by Myceliophthora thermophila. CONCLUSION Itraconazole is safe and effective at a dose of 5 mg/kg per day in a short duration of therapy for superficial fungal infections and 10 mg/kg per day for systemic fungal infections in infants. With a good compliance, it is cost-effective in treating infantile fungal infections. The profiles of adverse events induced by itraconazole in infants are similar to those in adults and children.
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Affiliation(s)
- Shuang Chen
- Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Kai-Yi Sun
- Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiao-Wei Feng
- Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xin Ran
- Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jebina Lama
- Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yu-Ping Ran
- Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Li YS, Kardorff R, Richter J, Sun KY, Zhou H, McManus DP, Hatz C. Ultrasound organometry: the importance of body height adjusted normal ranges in assessing liver and spleen parameters among Chinese subjects with Schistosoma japonicum infection. Acta Trop 2004; 92:133-8. [PMID: 15350865 DOI: 10.1016/j.actatropica.2004.06.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2003] [Revised: 05/25/2004] [Accepted: 06/15/2004] [Indexed: 11/28/2022]
Abstract
Hepatosplenic measurements among 550 Chinese subjects, aged 3-59 years from Yueyang city--a nonendemic area for schistosomiasis in Hunan province, China--were performed to define normal ranges of ultrasound organometry for assessing hepatosplenic morbidity in Schistosoma japonicum infection. Measurements included the size of the liver (left lobe and right lobe), the main portal vein stem, the peripheral periportal vein branches, and spleen length and thickness. The results document the significant relationship between body height and organometric parameters. The reference values stratified by body height improve the accuracy of assessment. Thus, height-based normal ranges established in this study can be applied in hospital routine and in field studies of patients infected with S. japonicum in Hunan province and in other endemic areas of China.
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Affiliation(s)
- Y S Li
- Tropical Health Program, Australian Centre for International and Tropical Health and Nutrition, The Queensland Institute of Medical Research, The University of Queensland, 3000 Herston Road, Herston, Brisbane, Qld 4029, Australia.
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Sun KY. [Care of epidemic hemorrhagic fever complicated by bradycardia]. Zhonghua Hu Li Za Zhi 1994; 29:82-83. [PMID: 7788760] [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: 05/22/2023]
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Sun KY, Chü WC. Corneal sporotrichosis. A case report. Chin Med J 1966; 85:44-6. [PMID: 5907035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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