1
|
Li MR, Chen EX, Li ZH, Song HL, Zhang Y, Li FF, Xie YL, Tang J, Ding YB, Fu LJ. HMGB1 regulates autophagy of placental trophoblast through ERK signaling pathway. Biol Reprod 2024:ioae064. [PMID: 38647664 DOI: 10.1093/biolre/ioae064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024] Open
Abstract
OBJECTIVE The purpose of this study is to investigate the role of high mobility group protein B1 (HMGB1) in placental development and fetal growth. METHODS We employed the Cre-loxP recombination system to establish a placenta-specific HMGB1 knockout mouse model. Breeding HMGB1flox/flox mice with Elf5-Cre mice facilitated the knockout, leveraging Elf5 expression in extra-embryonic ectoderm, ectoplacental cone, and trophoblast giant cells at 12.5 days of embryonic development. The primary goal of this model was to elucidate the molecular mechanism of HMGB1 in placental development, assessing parameters such as placental weight, fetal weight, and bone development. Additionally, we utilized lentiviral interference and overexpression of HMGB1 in human trophoblast cells to further investigate HMGB1's functional role. RESULTS Our findings indicate that HMGB1flox/floxElf5cre/+ mouse display fetal growth restriction (FGR), characterized by decreased placental and fetal weight and impaired bone development. And the absence of HMGB1 inhibits autophagosome formation, impairs lysosomal degradation, and disrupts autophagic flux. Depletion of HMGB1 in human trophoblast cells also suppresses cell viability, proliferation, migration, and invasion by inhibiting the ERK signaling pathway. Overexpression of HMGB1 observed the opposite phenotypes. CONCLUSIONS HMGB1 participates in the regulation of autophagy through the ERK signaling pathway and affects placental development.
Collapse
Affiliation(s)
- Ming-Rui Li
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing 400013, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - En-Xiang Chen
- School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400042, China
| | - Zhuo-Hang Li
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - Hong-Lan Song
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing 400013, China
| | - Yi Zhang
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - Fang-Fang Li
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - You-Long Xie
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - Jing Tang
- School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400042, China
| | - Yu-Bin Ding
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing 400013, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - Li-Juan Fu
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, China
- Department of Basic Medical Sciences, Changsha Medical University, Hunan 410219, China
| |
Collapse
|
2
|
Li XF, Zhang YJ, Yao YL, Chen MX, Wang LL, Wang MD, Hu XY, Tang XJ, Zhong ZH, Fu LJ, Luo X, Lv XY, Geng LH, Wan Q, Ding YB. The association of post-embryo transfer SARS-CoV-2 infection with early pregnancy outcomes in in vitro fertilization: a prospective cohort study. Am J Obstet Gynecol 2024; 230:436.e1-436.e12. [PMID: 38135094 DOI: 10.1016/j.ajog.2023.12.022] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 12/11/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND The influence of SARS-CoV-2 infection after embryo transfer on early pregnancy outcomes in in vitro fertilization or intracytoplasmic sperm injection-embryo transfer treatment remains inadequately understood. This knowledge gap endures despite an abundance of studies investigating the repercussions of preceding SARS-CoV-2 infection on early pregnancy outcomes in spontaneous pregnancies. OBJECTIVE This study aimed to investigate the association between SARS-CoV-2 infection within 10 weeks after embryo transfer and early pregnancy outcomes in patients undergoing in vitro fertilization/intracytoplasmic sperm injection treatment. STUDY DESIGN This prospective cohort study was conducted at a single public in vitro fertilization center in China. Female patients aged 20 to 39 years, with a body mass index ranging from 18 to 30 kg/m2, undergoing in vitro fertilization/intracytoplasmic sperm injection treatment, were enrolled between September 2022 and December 2022, with follow-up extended until March 2023. The study tracked SARS-CoV-2 infection time (≤14 days, ≤28 days, and ≤10 weeks after embryo transfer), symptoms, vaccination status, the interval between vaccination and embryo transfer, and early pregnancy outcomes, encompassing biochemical pregnancy rate, implantation rate, clinical pregnancy rate, and early miscarriage rate. The study used single-factor analysis and multivariate logistic regression to examine the association between SARS-CoV-2 infection status, along with other relevant factors, and the early pregnancy outcomes. RESULTS A total of 857 female patients undergoing in vitro fertilization/intracytoplasmic sperm injection treatment were analyzed. In the first stage, SARS-CoV-2 infection within 14 days after embryo transfer did not have a significant negative association with the biochemical pregnancy rate (adjusted odds ratio, 0.74; 95% confidence interval, 0.51-1.09). In the second stage, SARS-CoV-2 infection within 28 days after embryo transfer had no significant association with the implantation rate (36.6% in infected vs 44.0% in uninfected group; P=.181). No statistically significant association was found with the clinical pregnancy rate after adjusting for confounding factors (adjusted odds ratio, 0.69; 95% confidence interval, 0.56-1.09). In the third stage, SARS-CoV-2 infection within 10 weeks after embryo transfer had no significant association with the early miscarriage rate (adjusted odds ratio, 0.77; 95% confidence interval, 0.35-1.71). CONCLUSION Our study suggests that SARS-CoV-2 infection within 10 weeks after embryo transfer may not be negatively associated with the biochemical pregnancy rate, implantation rate, clinical pregnancy rate, and early miscarriage rate in patients undergoing in vitro fertilization/intracytoplasmic sperm injection treatment. It is important to note that these findings are specific to the target population of in vitro fertilization/intracytoplasmic sperm injection patients aged 20 to 39 years, without previous SARS-CoV-2 infection, and with a body mass index of 18 to 30 kg/m2. This information offers valuable insights, addressing current concerns and providing a clearer understanding of the actual risk associated with SARS-CoV-2 infection after embryo transfer.
Collapse
Affiliation(s)
- Xue-Fei Li
- Reproductive Center, Sichuan Jinxin Xinan Women and Children's Hospital, Chengdu, China
| | - Yong-Jia Zhang
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing, China; Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Ying-Ling Yao
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing, China; Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Ming-Xing Chen
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing, China; Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Li-Li Wang
- Reproductive Center, Sichuan Jinxin Xinan Women and Children's Hospital, Chengdu, China
| | - Meng-Di Wang
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing, China; Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Xin-Yue Hu
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Xiao-Jun Tang
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Zhao-Hui Zhong
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Li-Juan Fu
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China; Department of Pharmacology, Academician Workstation, Changsha Medical University, Changsha, China
| | - Xin Luo
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xing-Yu Lv
- Reproductive Center, Sichuan Jinxin Xinan Women and Children's Hospital, Chengdu, China
| | - Li-Hong Geng
- Reproductive Center, Sichuan Jinxin Xinan Women and Children's Hospital, Chengdu, China
| | - Qi Wan
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, China; Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Yu-Bin Ding
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing, China; Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China.
| |
Collapse
|
3
|
Wang XJ, Chen MX, Ruan LL, Tan L, Geng LH, Yang HJ, Fu LJ, Zhong ZH, Lv XY, Ding YB, Wan Q. Study on the optimal time limit of frozen embryo transfer and the effect of a long-term frozen embryo on pregnancy outcome. Medicine (Baltimore) 2024; 103:e37542. [PMID: 38552082 PMCID: PMC10977551 DOI: 10.1097/md.0000000000037542] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 02/19/2024] [Indexed: 04/02/2024] Open
Abstract
In this retrospective study conducted at Sichuan Jinxin Xinan Women and Children's Hospital spanning January 2015 to December 2021, our objective was to investigate the impact of embryo cryopreservation duration on outcomes in frozen embryo transfer. Participants, totaling 47,006 cycles, were classified into 3 groups based on cryopreservation duration: ≤1 year (Group 1), 1 to 6 years (Group 2), and ≥6 years (Group 3). Employing various statistical analyses, including 1-way ANOVA, Kruskal-Wallis test, chi-square test, and a generalized estimating equation model, we rigorously adjusted for confounding factors. Primary outcomes encompassed clinical pregnancy rate and Live Birth Rate (LBR), while secondary outcomes included biochemical pregnancy rate, multiple pregnancy rate, ectopic pregnancy rate, early and late miscarriage rates, preterm birth rate, neonatal birth weight, weeks at birth, and newborn sex. Patient distribution across cryopreservation duration groups was as follows: Group 1 (40,461 cycles), Group 2 (6337 cycles), and Group 3 (208 cycles). Postcontrolling for confounding factors, Group 1 exhibited a decreased likelihood of achieving biochemical pregnancy rate, clinical pregnancy rate, and LBR (OR < 1, aOR < 1, P < .05). Furthermore, an elevated incidence of ectopic pregnancy was observed (OR > 1, aOR > 1), notably significant after 6 years of freezing time [aOR = 4.141, 95% confidence intervals (1.013-16.921), P = .05]. Cryopreservation exceeding 1 year was associated with an increased risk of early miscarriage and preterm birth (OR > 1, aOR > 1). No statistically significant differences were observed in birth weight or sex between groups. However, male infant birth rates were consistently higher than those of female infants across all groups. In conclusion, favorable pregnancy outcomes align with embryo cryopreservation durations within 1 year, while freezing for more than 1 year may diminish clinical pregnancy and LBRs, concurrently elevating the risk of ectopic pregnancy and preterm birth.
Collapse
Affiliation(s)
- Xue-Jiao Wang
- Sichuan Jinxin Xinan Women and Children’s Hospital, Chengdu, China
| | - Ming-Xing Chen
- Department of Obstetrics and Gynecology, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Ling-Ling Ruan
- Department of Obstetrics and Gynecology, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Li Tan
- Sichuan Jinxin Xinan Women and Children’s Hospital, Chengdu, China
| | - Li-Hong Geng
- Sichuan Jinxin Xinan Women and Children’s Hospital, Chengdu, China
| | - Hui-Jun Yang
- Assisted Reproductive Center, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, China
| | - Li-Juan Fu
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
- Department of Pharmacology, Academician Workstation, Changsha Medical University, Changsha, China
| | - Zhao-Hui Zhong
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Xing-Yu Lv
- Sichuan Jinxin Xinan Women and Children’s Hospital, Chengdu, China
| | - Yu-Bin Ding
- Department of Obstetrics and Gynecology, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Qi Wan
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| |
Collapse
|
4
|
Pennarossa G, Wu ZH, Li FF, Ruan LL, Feng Q, Zhang S, Li ZH, Otoo A, Tang J, Fu LJ, Liu TH, Ding YB. Correction to: miR‑181d‑5p, which is upregulated in fetal growth restriction placentas, inhibits trophoblast fusion via CREBRF. J Assist Reprod Genet 2024; 41:235. [PMID: 37946095 PMCID: PMC10789694 DOI: 10.1007/s10815-023-02983-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023] Open
Affiliation(s)
- Georgia Pennarossa
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, No.120 Longshan Road, Yubei District, Chongqing, 401147, China
| | - Zhi-Hong Wu
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Fang-Fang Li
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Ling-Ling Ruan
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Qian Feng
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing Medical University, Chongqing, China
| | - Shuang Zhang
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Zhuo-Hang Li
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Antonia Otoo
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Jing Tang
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Li-Juan Fu
- Department of Pharmacology, the School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China.
- Academician Workstation, Changsha Medical University, Changsha, China.
| | - Tai-Hang Liu
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China.
| | - Yu-Bin Ding
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, No.120 Longshan Road, Yubei District, Chongqing, 401147, China.
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China.
| |
Collapse
|
5
|
Wu ZH, Li FF, Ruan LL, Feng Q, Zhang S, Li ZH, Otoo A, Tang J, Fu LJ, Liu TH, Ding YB. miR-181d-5p, which is upregulated in fetal growth restriction placentas, inhibits trophoblast fusion via CREBRF. J Assist Reprod Genet 2023; 40:2725-2737. [PMID: 37610607 PMCID: PMC10643557 DOI: 10.1007/s10815-023-02917-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 08/15/2023] [Indexed: 08/24/2023] Open
Abstract
PURPOSE Fetal growth restriction (FGR) is a common complication characterized by impaired placental function and unfavorable pregnancy outcomes. This study aims to elucidate the expression pattern of miR-181d-5p in FGR placentas and explore its effects on trophoblast fusion. METHODS The expression pattern of miR-181d-5p in human FGR placentas were evaluated using qRT-PCR. Western blot, qRT-PCR, and Immunofluorescence analysis were performed in a Forskolin (FSK)-induced BeWo cell fusion model following the transfection of miR-181d-5p mimic or inhibitor. Potential target genes for miR-181d-5p were identified by screening miRNA databases. The interaction between miR-181d-5p and Luman/CREB3 Recruitment Factor (CREBRF) was determined through a luciferase assay. Moreover, the effect of CREBRF on BeWo cell fusion was examined under hypoxic conditions. RESULTS Aberrant up-regulation of miR-181d-5p and altered expression of trophoblast fusion makers, including glial cell missing 1 (GCM1), Syncytin1 (Syn1), and E-cadherin (ECAD), were found in human FGR placentas. A down-regulation of miR-181d-5p expression was observed in the FSK-induced BeWo cell fusion model. Transfection of the miR-181d-5p mimic resulted in the inhibition of BeWo cell fusion, characterized by a down-regulation of GCM1 and Syn1, accompanied by an up-regulation of ECAD. Conversely, the miR-181d-5p inhibitor promoted BeWo cell fusion. Furthermore, miR-181d-5p exhibited negative regulation of CREBRF, which was significantly down-regulated in the hypoxia-induced BeWo cell model. The overexpression of CREBRF was effectively ameliorated the impaired BeWo cell fusion induced by hypoxia. CONCLUSIONS Our study demonstrated that miR-181d-5p, which is elevated in FGR placenta, inhibited the BeWo cell fusion through negatively regulating the expression of CREBRF.
Collapse
Affiliation(s)
- Zhi-Hong Wu
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, No.120 Longshan Road, Yubei District, Chongqing, 401147, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Fang-Fang Li
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Ling-Ling Ruan
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Qian Feng
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing Medical University, Chongqing, China
| | - Shuang Zhang
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Zhuo-Hang Li
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Antonia Otoo
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Jing Tang
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China
| | - Li-Juan Fu
- Department of Pharmacology, the School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China.
- Academician Workstation, Changsha Medical University, Changsha, China.
| | - Tai-Hang Liu
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China.
| | - Yu-Bin Ding
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, No.120 Longshan Road, Yubei District, Chongqing, 401147, China.
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, Chongqing Medical University, Chongqing, China.
| |
Collapse
|
6
|
Ruan LL, Chen MX, Adu-Gyamfi EA, Geng LH, Fu LJ, Wan Q, Ding YB. Maternal Hepatitis B Virus Infection and Pregnancy Outcomes of Freeze-Thaw Embryo Transfer. JAMA Netw Open 2023; 6:e2323495. [PMID: 37450305 PMCID: PMC10349339 DOI: 10.1001/jamanetworkopen.2023.23495] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/31/2023] [Indexed: 07/18/2023] Open
Abstract
This cohort study assesses the association of maternal hepatitis B virus (HBV) serostatus with pregnancy outcomes in women undergoing freeze-thaw embryo transfer (FET).
Collapse
Affiliation(s)
- Ling-Ling Ruan
- Department of Obstetrics and Gynecology, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Ming-Xing Chen
- Department of Obstetrics and Gynecology, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | | | - Li-Hong Geng
- The Reproductive Center, Chengdu Xinan Gynecology Hospital, Chengdu, China
| | - Li-Juan Fu
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
- Academician Workstation, Department of Pharmacology, Changsha Medical University, Changsha, China
| | - Qi Wan
- The Reproductive Center, Chengdu Xinan Gynecology Hospital, Chengdu, China
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University (Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education), Chengdu, China
| | - Yu-Bin Ding
- Department of Obstetrics and Gynecology, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| |
Collapse
|
7
|
Fan XC, Lu ZY, Ren H, Xu FX, Fu LJ, Bu CX, Liu QY, Xing N, Bu HL. [Correlation between balloon volume and Meckel's cave size and its influence of percutaneous microballoon compression for trigeminal neuralgia]. Zhonghua Yi Xue Za Zhi 2023; 103:494-499. [PMID: 36800772 DOI: 10.3760/cma.j.cn112137-20220808-01709] [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: 02/22/2023]
Abstract
Objective: To investigate the correlation between balloon volume and Meckel's cave size during percutaneous puncture microballoon compression (PMC) for trigeminal neuralgia and the influence of the compression coefficient (the ratio of balloon volume/Meckel's cave size) on the prognosis. Methods: Seventy-two patients (28 males and 44 females) aged (62±11) years who underwent PMC under general anesthesia for trigeminal neuralgia in the First Affiliated Hospital of Zhengzhou University from February 2018 to October 2020 were retrospectively collected. All patients underwent preoperative cranial magnetic resonance imaging (MRI) to measure Meckel's cave size, intraoperative balloon volume was recorded, and the compression coefficient was calculated. Follow-up visits were performed preoperatively (T0) and 1 d (T1), 1 month (T2), 3 months (T3), and 6 months (T4) postoperatively, either in the outpatient clinic or by telephone, and the Barrow Neurological Institute pain scale (BNI-P) score, the Barrow Neurological Institute facial numbness (BNI-N) score and the occurrence of complications were recorded and compared at each time point. Patients were divided into 3 groups according to different prognoses: patients in group A (n=48) were with no recurrence of pain and mild facial numbness, patients in group B (n=19) were with no recurrence of pain but severe facial numbness, while those in group C (n=5) had recurrence of pain. The differences in balloon volume, Meckel's cave size, and compression coefficient were compared among the three groups, and the correlation between balloon volume and Meckel's cave size in each group was analyzed by Pearson correlation. Results: The effective rate of PMC for trigeminal neuralgia was 93.1% (67/72). At time points from T0 to T4, patients had BNI-P scores [M (Q1, Q3)] of 4.5 (4.0, 5.0), 1.0 (1.0, 1.0), 1.0 (1.0, 1.0), 1.0 (1.0, 1.0) and 1.0 (1.0, 1.0), and BNI-N scores [M (Q1, Q3)] of 1.0 (1.0, 1.0), 4.0 (3.0, 4.0), 3.0 (3.0, 4.0), 3.0 (2.0, 4.0) and 2.0 (2.0, 3.0), respectively. Compared with those at T0, patients had lower BNI-P scores and higher BNI-N scores from T1 to T4 (all P<0.05). In all patients, group A, group B, and group C, the balloon volume was (0.65±0.15), (0.67±0.15), (0.59±0.15) and (0.67±0.17) cm3, respectively, with no statistically significant difference (P>0.05), while the Meckel's cave size was (0.42±0.12), (0.44±0.11), (0.32±0.07), and (0.57±0.11) cm3, with a statistically significant difference (P<0.001). The balloon volumes and Meckel's cave sizes were all linearly and positively correlated (r=0.852, 0.924, 0.937 and 0.969, all P<0.05). The compression coefficient in group A, B and C was (1.54±0.14), (1.84±0.18) and (1.18±0.10), respectively, with a statistically significant difference (P<0.001). There were no serious intraoperative complications such as death, diplopia, arteriovenous fistula, cerebrospinal fluid leak, and subarachnoid hemorrhage. Conclusions: Intraoperative balloon volume during PMC for trigeminal neuralgia is linearly and positively correlated with the volume of the patient's Meckel's cave. The compression coefficient varies among patients with different prognoses and the compression coefficient may be a factor affecting the patient's prognosis.
Collapse
Affiliation(s)
- X C Fan
- Department of Pain, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China International Joint Laboratory of Pain Cognition and Emotion Research in Henan Province, Zhengzhou 450000, China
| | - Z Y Lu
- Department of Pain, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China International Joint Laboratory of Pain Cognition and Emotion Research in Henan Province, Zhengzhou 450000, China
| | - H Ren
- Department of Pain, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China International Joint Laboratory of Pain Cognition and Emotion Research in Henan Province, Zhengzhou 450000, China
| | - F X Xu
- Department of Pain, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China International Joint Laboratory of Pain Cognition and Emotion Research in Henan Province, Zhengzhou 450000, China
| | - L J Fu
- Department of Pain, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China International Joint Laboratory of Pain Cognition and Emotion Research in Henan Province, Zhengzhou 450000, China
| | - C X Bu
- Department of Magnetic Resonance, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Q Y Liu
- Department of Pain, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China International Joint Laboratory of Pain Cognition and Emotion Research in Henan Province, Zhengzhou 450000, China
| | - N Xing
- International Joint Laboratory of Pain Cognition and Emotion Research in Henan Province, Zhengzhou 450000, China Department of Anesthesia and Perioperative Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - H L Bu
- Department of Pain, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China International Joint Laboratory of Pain Cognition and Emotion Research in Henan Province, Zhengzhou 450000, China
| |
Collapse
|
8
|
Zhan TL, Chen YW, Wu JJ, Li F, Zhang H, Fu LJ. [A case of severe pulmonary hypertension in children treated by transcatheter Potts shunt]. Zhonghua Er Ke Za Zhi 2023; 61:169-171. [PMID: 36720601 DOI: 10.3760/cma.j.cn112140-20220717-00654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- T L Zhan
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Y W Chen
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - J J Wu
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - F Li
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - H Zhang
- Department of Cardiovascular and Thoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - L J Fu
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| |
Collapse
|
9
|
Su YN, Wang MJ, Yang JP, Wu XL, Xia M, Bao MH, Ding YB, Feng Q, Fu LJ. Corrigendum: Effects of Yulin Tong Bu formula on modulating gut microbiota and fecal metabolite interactions in mice with polycystic ovary syndrome. Front Endocrinol (Lausanne) 2023; 14:1184616. [PMID: 37124762 PMCID: PMC10144286 DOI: 10.3389/fendo.2023.1184616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 04/04/2023] [Indexed: 05/02/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fendo.2023.1122709.].
Collapse
Affiliation(s)
- Ya-Nan Su
- Department of Herbal Medicine, Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, School of traditional Chinese Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Mei-Jiao Wang
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
- Department of Physiology, School of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Jun-Pu Yang
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Xiang-Lu Wu
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Min Xia
- Department of Gynecology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Mei-Hua Bao
- Department of Pharmacology, Academician Workstation, Changsha Medical University, Changsha, China
| | - Yu-Bin Ding
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Qian Feng
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
- Department of Gynecology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
- Department of Obstetrics and Gynecology, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China
- *Correspondence: Li-Juan Fu, ; Qian Feng,
| | - Li-Juan Fu
- Department of Herbal Medicine, Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, School of traditional Chinese Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
- Department of Pharmacology, Academician Workstation, Changsha Medical University, Changsha, China
- *Correspondence: Li-Juan Fu, ; Qian Feng,
| |
Collapse
|
10
|
Su YN, Wang MJ, Yang JP, Wu XL, Xia M, Bao MH, Ding YB, Feng Q, Fu LJ. Effects of Yulin Tong Bu formula on modulating gut microbiota and fecal metabolite interactions in mice with polycystic ovary syndrome. Front Endocrinol (Lausanne) 2023; 14:1122709. [PMID: 36814581 PMCID: PMC9939769 DOI: 10.3389/fendo.2023.1122709] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 01/24/2023] [Indexed: 02/09/2023] Open
Abstract
BACKGROUND Polycystic ovarian syndrome (PCOS) is a common endocrine disorder characterized by hyperandrogenism, ovarian dysfunction and polycystic ovarian morphology. Gut microbiota dysbiosis and metabolite are associated with PCOS clinical parameters. Yulin Tong Bu formula (YLTB), a traditional Chinese medicine formula, has been recently indicated to be capable of ameliorating polycystic ovary symptoms and correcting abnormal glucose metabolism. However, the therapeutic mechanism of YLTB on PCOS has not been fully elucidated. METHODS A pseudo sterile mouse model was established during this four-day acclimatization phase by giving the animals an antibiotic cocktail to remove the gut microbiota. Here, the therapeutic effects of YLTB on PCOS were investigated using dehydroepiandrosterone plus high-fat diet-induced PCOS mice model. Female prepuberal mice were randomly divided into three groups; namely, the control group, PCOS group and YLTB (38.68 g·kg-1·day-1) group. To test whether this effect is associated with the gut microbiota, we performed 16S rRNA sequencing studies to analyze the fecal microbiota of mice. The relationships among metabolites, gut microbiota, and PCOS phenotypes were further explored by using Spearman correlation analysis. Then, the effect of metabolite ferulic acid was then validated in PCOS mice. RESULTS Our results showed that YLTB treatment ameliorated PCOS features (ovarian dysfunction, delayed glucose clearance, decreased insulin sensitivity, deregulation of glucolipid metabolism and hormones, etc.) and significantly attenuated PCOS gut microbiota dysbiosis. Spearman correlation analysis showed that metabolites such as ferulic acid and folic acid are negatively correlated with PCOS clinical parameters. The effect of ferulic acid was similar to that of YLTB. In addition, the bacterial species such as Bacteroides dorei and Bacteroides fragilis were found to be positively related to PCOS clinical parameters, using the association study analysis. CONCLUSION These results suggest that YLTB treatment systematically regulates the interaction between the gut microbiota and the associated metabolites to ameliorate PCOS, providing a solid theoretical basis for further validation of YLTB effect on human PCOS trials.
Collapse
Affiliation(s)
- Ya-Nan Su
- Department of Herbal Medicine, Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, School of traditional Chinese Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Mei-Jiao Wang
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
- Department of Physiology, School of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Jun-Pu Yang
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Xiang-Lu Wu
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Min Xia
- Department of Gynecology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Mei-Hua Bao
- Department of Pharmacology, Academician Workstation, Changsha Medical University, Changsha, China
| | - Yu-Bin Ding
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Qian Feng
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
- Department of Gynecology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
- Department of Obstetrics and Gynecology, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China
- *Correspondence: Li-Juan Fu, ; Qian Feng,
| | - Li-Juan Fu
- Department of Herbal Medicine, Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, School of traditional Chinese Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China
- Department of Pharmacology, Academician Workstation, Changsha Medical University, Changsha, China
- *Correspondence: Li-Juan Fu, ; Qian Feng,
| |
Collapse
|
11
|
Xu XY, Liu TL, Guo Y, Zhang X, Wu YB, Huang MR, Fu LJ, Li F, Gao W. [Medium and long-term follow-up of the Pul-Stent in treating postoperative branch pulmonary artery stenosis in children with congenital heart disease]. Zhonghua Er Ke Za Zhi 2022; 60:20-24. [PMID: 34986618 DOI: 10.3760/cma.j.cn112140-20210923-00816] [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 evaluate the effectiveness and safety of Pul-Stent as the treatment of postoperative branch pulmonary artery stenosis in children with congenital heart disease. Methods: This was a retrospective study. Thirty-three patients who underwent Pul-Stent implantation in Shanghai Children's Medical Center due to postoperative residual pulmonary artery stenosis from August 2014 to June 2015 were included. The immediate curative effect, follow-up and complications of Pul-Stent implantation were assessed. Comparisons between groups were performed with unpaired Student t test. Results: Pul-Stent implantation of 33 patients (19 males and 14 females) were performed successfully. Thirty-one patients underwent percutaneous stenting, and 2 patients underwent hybrid stenting. A total of 35 Pul-Stents were implanted (19 of model small, 15 of model medium and one of model large), 23 stents were planted in the proximal left pulmonary artery and 12 stents were in the proximal right pulmonary artery. The initial diameter of dilation balloon ranged from 6 to 16 mm, and the long sheath of percutaneous implantation ranged from 8 to 10 F in 29 patients (29/31, 94%). After stenting, the diameter of the narrowest segment of pulmonary artery increased from (4.0±1.7) mm to (9.1±2.1) mm in all patients (t=-21.60, P<0.001). The pressure gradient at the stenosis in 26 patients after biventricular correction decreased from (30.5±12.3) mmHg (1 mmHg=0.133 kPa) to (9.9±9.6) mmHg (t=12.92, P<0.001), and the right ventricular to aortic pressure ratio decreased from 0.57±0.14 to 0.44±0.12 (t=7.44, P<0.001). The pressure of the superior vena cava after stenting in 5 patients after cavopulmonary anastomosis decreased from (17.0±1.9) mmHg to (14.0±0.7) mmHg (t=2.86, P=0.046). Two patients died during reoperation for repairing other cardiac malformations. The remaining 31 patients were clinically stable during the follow-up period of (5.3±1.6) years, and one stent fracture was found on chest X-ray. Cardiac catheterization reexaminations in 16 patients showed that restenosis was found in one stent, while stent position and patency were satisfactory in the remaining stents. Nine children underwent post-dilation without stent fracture, displacement or aneurysm formation. Cardiac tomography showed no stent stenosis, fracture observed, or significant change in diameter of the stent in 8 patients. The inner diameter and pulmonary blood perfusion could not be accurately evaluated due to artifacts by cardiac magnetic resonance imaging in 4 patients. Conclusions: Pul-Stent has good compliance and adequate radial strength, and can dilate further over time to accommodate for somatic growth. It performs safely and effectively in treating post-operative branch pulmonary artery stenosis in children.
Collapse
Affiliation(s)
- X Y Xu
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - T L Liu
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Y Guo
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - X Zhang
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Y B Wu
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - M R Huang
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - L J Fu
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - F Li
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - W Gao
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| |
Collapse
|
12
|
Song HL, Liu TH, Wang YH, Li FF, Ruan LL, Adu-Gyamfi EA, Hu SC, Chen XM, Ding YB, Fu LJ. Appropriate expression of P57kip2 drives trophoblast fusion via cell cycle arrest. Reproduction 2021; 161:633-644. [PMID: 33812346 DOI: 10.1530/rep-20-0638] [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] [Received: 12/01/2020] [Accepted: 03/30/2021] [Indexed: 11/08/2022]
Abstract
The syncytiotrophoblast, derived from cytotrophoblast fusion, is responsible for maternal-fetal exchanges, secretion of pregnancy-related hormones, and fetal defense against pathogens. Inadequate cytotrophoblast fusion can lead to pregnancy disorders, such as preeclampsia and fetal growth restriction. However, little is known about the mechanism of cytotrophoblast fusion in both physiological and pathological pregnancy conditions. In this study, P57kip2 (P57), a cell cycle-dependent kinase inhibitor that negatively regulates the cell cycle, was found to be up-regulated during the process of syncytialization in both primary trophoblast cells and BeWo cells. Co-immunofluorescence with proliferation markers Ki67 and Cyclin-CDK factors further showed that P57 specifically localizes in the post-mitotic cytotrophoblast subtype of the early pregnancy villi. Overexpression of P57 promoted trophoblast syncytialization by arresting the cell cycle at the G1/G0 phase and inhibiting proliferation. Blocking of the cell cycle through a serum starvation culture resulted in an enhancement of cytotrophoblast fusion and the up-regulation of P57. In both spontaneous cytotrophoblast fusion and forskolin-induced BeWo cell fusion models, an initial up-regulation of P57 was observed followed by a subsequent down-regulation. These findings indicate that proper expression of P57 at cytotrophoblast differentiation nodes plays an important role in trophoblast syncytialization.
Collapse
Affiliation(s)
- Hong-Lan Song
- Department of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Tai-Hang Liu
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, China.,Department of Bioinformatics, School of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Yong-Heng Wang
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, China
| | - Fang-Fang Li
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, China
| | - Ling-Ling Ruan
- Department of Herbal Medicine, School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China
| | - Enoch Appiah Adu-Gyamfi
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, China
| | - Si-Chen Hu
- Department of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Xue-Mei Chen
- Department of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China.,The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, China
| | - Yu-Bin Ding
- Department of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China.,The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, China
| | - Li-Juan Fu
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, China.,Department of Herbal Medicine, School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China.,Department of Herbal Medicine, School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China
| |
Collapse
|
13
|
Yang Y, Zhu XF, Huang J, Chen C, Zheng Y, He W, Zhao LH, Gao Q, Huang XX, Fu LJ, Zhang Y, Chang YQ, Zhang HJ, Lu ZJ. Nomogram for prediction of fatal outcome in patients with severe COVID-19: a multicenter study. Mil Med Res 2021; 8:21. [PMID: 33731184 PMCID: PMC7967101 DOI: 10.1186/s40779-021-00315-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 03/08/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND To develop an effective model of predicting fatal outcomes in the severe coronavirus disease 2019 (COVID-19) patients. METHODS Between February 20, 2020 and April 4, 2020, consecutive confirmed 2541 COVID-19 patients from three designated hospitals were enrolled in this study. All patients received chest computed tomography (CT) and serological examinations at admission. Laboratory tests included routine blood tests, liver function, renal function, coagulation profile, C-reactive protein (CRP), procalcitonin (PCT), interleukin-6 (IL-6), and arterial blood gas. The SaO2 was measured using pulse oxygen saturation in room air at resting status. Independent high-risk factors associated with death were analyzed using Cox proportional hazard model. A prognostic nomogram was constructed to predict the survival of severe COVID-19 patients. RESULTS There were 124 severe patients in the training cohort, and there were 71 and 76 severe patients in the two independent validation cohorts, respectively. Multivariate Cox analysis indicated that age ≥ 70 years (HR = 1.184, 95% CI 1.061-1.321), panting (breathing rate ≥ 30/min) (HR = 3.300, 95% CI 2.509-6.286), lymphocyte count < 1.0 × 109/L (HR = 2.283, 95% CI 1.779-3.267), and interleukin-6 (IL-6) > 10 pg/ml (HR = 3.029, 95% CI 1.567-7.116) were independent high-risk factors associated with fatal outcome. We developed the nomogram for identifying survival of severe COVID-19 patients in the training cohort (AUC = 0.900, 95% CI 0.841-0.960, sensitivity 95.5%, specificity 77.5%); in validation cohort 1 (AUC = 0.811, 95% CI 0.763-0.961, sensitivity 77.3%, specificity 73.5%); in validation cohort 2 (AUC = 0.862, 95% CI 0.698-0.924, sensitivity 92.9%, specificity 64.5%). The calibration curve for probability of death indicated a good consistence between prediction by the nomogram and the actual observation. The prognosis of severe COVID-19 patients with high levels of IL-6 receiving tocilizumab were better than that of those patients without tocilizumab both in the training and validation cohorts, but without difference (P = 0.105 for training cohort, P = 0.133 for validation cohort 1, and P = 0.210 for validation cohort 2). CONCLUSIONS This nomogram could help clinicians to identify severe patients who have high risk of death, and to develop more appropriate treatment strategies to reduce the mortality of severe patients. Tocilizumab may improve the prognosis of severe COVID-19 patients with high levels of IL-6.
Collapse
Affiliation(s)
- Yun Yang
- The Third Affiliated Hospital of Second Military Medical University, 225 Changhai Road, Shanghai, 200438, China.,The Guanggu Branch of the Women and Children's Hospital of Hubei Province, Wuhan, 430070, China
| | - Xiao-Fei Zhu
- The Guanggu Branch of the Women and Children's Hospital of Hubei Province, Wuhan, 430070, China.,The First Affiliated Hospital of Second Military Medical University, Shanghai, 200438, China
| | - Jian Huang
- The Third Affiliated Hospital of Second Military Medical University, 225 Changhai Road, Shanghai, 200438, China
| | - Cui Chen
- The Third Affiliated Hospital of Second Military Medical University, 225 Changhai Road, Shanghai, 200438, China.,The Guanggu Branch of the Women and Children's Hospital of Hubei Province, Wuhan, 430070, China
| | - Yang Zheng
- 904 Hospital of PLA Joint Logistic Support Force, Wuxi, 215000, Jiangsu, China.,Tongji Taikang Hospital, Wuhan, 430050, China
| | - Wei He
- 924 Hospital of PLA Joint Logistic Support Force, Guilin, 541002, Guangxi, China.,Huoshen Mountain Hospital, Wuhan, 430113, China
| | - Ling-Hao Zhao
- The Third Affiliated Hospital of Second Military Medical University, 225 Changhai Road, Shanghai, 200438, China.,Huoshen Mountain Hospital, Wuhan, 430113, China
| | - Qian Gao
- The Third Affiliated Hospital of Second Military Medical University, 225 Changhai Road, Shanghai, 200438, China.,The Guanggu Branch of the Women and Children's Hospital of Hubei Province, Wuhan, 430070, China
| | - Xuan-Xuan Huang
- The Third Affiliated Hospital of Second Military Medical University, 225 Changhai Road, Shanghai, 200438, China.,The Guanggu Branch of the Women and Children's Hospital of Hubei Province, Wuhan, 430070, China
| | - Li-Juan Fu
- The Third Affiliated Hospital of Second Military Medical University, 225 Changhai Road, Shanghai, 200438, China.,The Guanggu Branch of the Women and Children's Hospital of Hubei Province, Wuhan, 430070, China
| | - Yu Zhang
- The Third Affiliated Hospital of Second Military Medical University, 225 Changhai Road, Shanghai, 200438, China.,The Guanggu Branch of the Women and Children's Hospital of Hubei Province, Wuhan, 430070, China
| | - Yan-Qin Chang
- The Third Affiliated Hospital of Second Military Medical University, 225 Changhai Road, Shanghai, 200438, China. .,Huoshen Mountain Hospital, Wuhan, 430113, China.
| | - Huo-Jun Zhang
- The First Affiliated Hospital of Second Military Medical University, Shanghai, 200438, China.
| | - Zhi-Jie Lu
- The Third Affiliated Hospital of Second Military Medical University, 225 Changhai Road, Shanghai, 200438, China. .,The Guanggu Branch of the Women and Children's Hospital of Hubei Province, Wuhan, 430070, China.
| |
Collapse
|
14
|
Yang Y, Deng H, Li T, Xia M, Liu C, Bu XQ, Li H, Fu LJ, Zhong ZH. The mental health of Chinese women with polycystic ovary syndrome is related to sleep disorders, not disease status. J Affect Disord 2021; 282:51-57. [PMID: 33388474 DOI: 10.1016/j.jad.2020.12.084] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/27/2020] [Accepted: 12/22/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Mental health disorders are highly prevalent in polycystic ovary syndrome (PCOS) cases. The etiology for anxiety/depression in women with PCOS still remains unclear, due to conflicting results. AIM To examine whether an association exists between the mental health of Chinese women with PCOS and various indicators such as their disease characteristics, biochemistry results and sleep status. METHODS During July 2018 and January 2020, our study included a total of 433 women diagnosed with PCOS at Chongqing Hospital of Traditional Chinese Medicine. Sleep-related variables were evaluated by the Pittsburgh Sleep Quality Index (PSQI), anxiety and depression values were quantified by the Hospital Anxiety and Depression Scale (HADS), and biochemistry results were collected from the medical records of the patients. RESULTS 26.6% patients resulted as positive anxiety and 23.6% as positive depression. We found significant associations between anxiety/depression status and sleep conditions of PCOS patients. More specifically, anxiety significantly associated with sleep quality OR (95%CI) = 1.611 (1.147-2.261), sleep disturbance 2.326 (1.468-3.685) and daytime dysfunction 1.457 (1.122-1.891). Similarly, depression significantly associated with sleep quality 1.467 (1.043-2.063), sleep disturbance 1.624 (1.030-2.561) and daytime dysfunction 1.406 (1.077-1.836). There was no association detected between mental health and disease characteristics, as well as reproductive and metabolic indicators in PCOS. LIMITATION Cross-sectional nature of the data prevents causal associations, selection bias of a hospital-based population. CONCLUSIONS Sleep-related disorders might be involved in the etiology and development of the anxiety/depression observed in PCOS cases. We propose that management of sleep disorders should be an integral part of the disease management of women with PCOS.
Collapse
Affiliation(s)
- Yin Yang
- Department of Epidemiology, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China
| | - Hui Deng
- Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China; The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Tian Li
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Min Xia
- Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Chang Liu
- Joint International Research Laboratory of Reproduction and Development, Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Xiao-Qing Bu
- Department of Epidemiology, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China
| | - Hang Li
- Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Li-Juan Fu
- Department of Herbal Medicine, School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China..
| | - Zhao-Hui Zhong
- Department of Epidemiology, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China.
| |
Collapse
|
15
|
Liu DY, Li RY, Fu LJ, Adu-Gyamfi EA, Yang Y, Xu Y, Zhao LT, Zhang TF, Bao HQ, Xu XO, Gao XH, Yang XN, Ding YB. SNP rs12794714 of CYP2R1 is associated with serum vitamin D levels and recurrent spontaneous abortion (RSA): a case-control study. Arch Gynecol Obstet 2021; 304:179-190. [PMID: 33625596 DOI: 10.1007/s00404-021-06004-y] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/11/2021] [Indexed: 01/20/2023]
Abstract
PURPOSE Vitamin D (VD) deficiency seems to be associated with the risk of recurrent spontaneous abortion (RSA). Vitamin D receptor (VDR) and cytochrome P450 family 2 subfamily R member 1 (CYP2R1) are two genes which are vital for VD metabolism and actions. However, whether single-nucleotide polymorphisms (SNPs) in these genes are correlated with the risk of RSA are poorly understood. Therefore, we aimed to characterize the relationships among VDR SNPs, CYP2R1 SNPs and RSA. METHODS This case-control study enrolled 75 RSA patients and 83 controls. Serum VD and some cytokines were detected with LC-MS/MS and flow cytometry, respectively. Genotyping for three SNPs of CYP2R1 (rs10741657, rs10766197 and rs12794714) and five SNPs of VDR (rs7975232, rs1544410, rs2189480, rs2228570 and rs2239179) was done with polymerase chain reaction (PCR) and high-throughput sequencing. All the data were analyzed with appropriate methods and in different models. RESULTS The results revealed a significant correlation between the AG genotype of CYP2R1 rs12794714 and VD levels (OR 0.686; 95% CI 0.49-0.96; p = 0.028). Besides, the AG and GG genotypes of CYP2R1 rs12794714 were markedly related to the risk of RSA (OR 52.394, 59.497; 95% CI 2.683-1023.265, 3.110-1138.367; p = 0.009, 0.007, respectively). CONCLUSION Our results indicate that CYP2R1 rs12794714 might be a risk factor for RSA. Hence, early screening of pregnant women for CYP2R1 rs12794714 is necessary to warrant proactive counseling and treatment against RSA.
Collapse
Affiliation(s)
- Ding-Yuan Liu
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Department of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Ren-Yan Li
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, People's Republic of China
| | - Li-Juan Fu
- Department of Pharmacology, School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Enoch Appiah Adu-Gyamfi
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Department of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Yin Yang
- Department of Epidemiology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Ying Xu
- Department of Epidemiology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Le-Tian Zhao
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, People's Republic of China
| | - Tian-Feng Zhang
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, People's Republic of China
| | - Hua-Qiong Bao
- Affiliated Hospital of Chongqing Academy of Population and Family Planning, Chongqing, 400020, People's Republic of China
| | - Xiao-Ou Xu
- Affiliated Hospital of Chongqing Academy of Population and Family Planning, Chongqing, 400020, People's Republic of China
| | - Xiao-Han Gao
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, People's Republic of China
| | - Xue-Niu Yang
- Affiliated Hospital of Chongqing Academy of Population and Family Planning, Chongqing, 400020, People's Republic of China.
| | - Yu-Bin Ding
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Department of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
| |
Collapse
|
16
|
Yang Y, Fu LJ, Chen CM, Hu MW. Venetoclax in combination with chidamide and dexamethasone in relapsed/refractory primary plasma cell leukemia without t(11;14): A case report. World J Clin Cases 2021; 9:1175-1183. [PMID: 33644182 PMCID: PMC7896656 DOI: 10.12998/wjcc.v9.i5.1175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/04/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Conventional therapies for primary plasma cell leukemia (pPCL) are usually ineffective, with a short remission time with the use of multiple myeloma medications, showing aggressiveness of pPCL. B-cell lymphoma-2 inhibitor venetoclax is usually used for relapsed/refractory multiple myeloma (RRMM) with t(11;14). There are very few studies published on the use of venetoclax in pPCL without t(11;14). Similarly, histone deacetylase inhibitors are considered effective for the treatment of RRMM, but there are no reports on their use in pPCL.
CASE SUMMARY A 57-year-old woman with severe anemia, thrombocytopenia, multiple bone destruction, impaired renal function, and 42.7% of peripheral plasma cells is reported. After multiple chemotherapy regimens and chimeric antigen receptor T-cell treatment, the disease progressed again. The patient had very good partial response and was maintained for a long time on venetoclax in combination with chidamide and dexamethasone therapy.
CONCLUSION The success of venetoclax-chidamide-dexamethasone combination therapy in achieving a very good partial response suggested that it can be used for refractory/relapsed pPCL patients who have been exhausted with the use of various drug combinations and had poor survival outcomes.
Collapse
Affiliation(s)
- Yang Yang
- Department of Hematology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310014, Zhejiang Province, China
| | - Li-Juan Fu
- Department of Hematology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310014, Zhejiang Province, China
| | - Chun-Mei Chen
- Department of Hematology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310014, Zhejiang Province, China
| | - Mei-Wei Hu
- Department of Hematology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310014, Zhejiang Province, China
| |
Collapse
|
17
|
Fu LJ. [Molecular diagnosis in pediatric cardiomyopathy]. Zhonghua Er Ke Za Zhi 2021; 59:158-160. [PMID: 33548969 DOI: 10.3760/cma.j.cn112140-20201202-01070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- L J Fu
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| |
Collapse
|
18
|
Zhang X, Li BY, Fu LJ, Adu-Gyamfi EA, Xu BR, Liu TH, Chen XM, Lan X, Wang YX, Xu HB, Ding YB. Corrigendum to "Stomatin-like protein 2 (SLP2) regulates the proliferation and invasion of trophoblast cells by modulating mitochondrial functions" [Placenta 100 (2020) 13-23]. Placenta 2020; 104:306-307. [PMID: 33308932 DOI: 10.1016/j.placenta.2020.12.001] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xue Zhang
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China; The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China
| | - Bing-Yi Li
- Department of Obstetrics and Gyaanecology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, PR China; Wuhan Medical & Healthcare for Woman and Children, Wuhan, 430015, PR China
| | - Li-Juan Fu
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China; School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Enoch Appiah Adu-Gyamfi
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China
| | - Bai-Ruo Xu
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China
| | - Tai-Hang Liu
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China; The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China
| | - Xue-Mei Chen
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China; The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China
| | - Xi Lan
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China
| | - Ying-Xiong Wang
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China; The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China
| | - Hong-Bing Xu
- Department of Obstetrics and Gyaanecology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, PR China
| | - Yu-Bin Ding
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China; The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China.
| |
Collapse
|
19
|
Zhang X, Li BY, Fu LJ, Adu-Gyamfi EA, Xu BR, Liu TH, Chen XM, Lan X, Wang YX, Xu HB, Ding YB. Stomatin-like protein 2 (SLP2) regulates the proliferation and invasion of trophoblast cells by modulating mitochondrial functions. Placenta 2020; 100:13-23. [PMID: 32814233 DOI: 10.1016/j.placenta.2020.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 06/01/2020] [Accepted: 07/08/2020] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Stomatin-like protein 2 (SLP2) is highly expressed in human first trimester trophoblast cells, but its functions in placental morpho-physiology remain unknown. This study aimed to determine the role of SLP2 in the proliferation and invasion of human first trimester trophoblast cells. METHODS Immunofluorescence was used to determine the expression and localization of SLP2 in normal and miscarriage human first trimester placenta. Western blot was used to determine the expression of SLP2, PCNA, Cyclin D3, N-cadherin, Vimentin, PGC1α and PPARα in HTR-8/SVneo cells. SLP2 was knocked down in the HTR-8/SVneo cells by using si-Slp2. Wound healing and migration assays were used to determine the effect of SLP2 knockdown on the migration and invasion in the HTR-8/SVneo cells. Mitochondrial membrane potential, reactive oxygen species (ROS), ATP production and biogenesis were measured to assess the effects of SLP2 knockdown on mitochondrial functions. RESULT SLP2 was strongly expressed in the cytotrophoblasts (CTB), syncytiotrophoblast (STB) and extravillous trophoblasts (EVT) of normal pregnancy placenta as compared to miscarriage placenta. SLP2 was highly expressed in the invasive EVT cell lines, HTR-8/SVneo and HPT-8 compared to the CTB cell line JAR. Knockdown of SLP2 significantly inhibited the migration and invasion of HTR-8/SVneo cells and placental villous explants, and repressed mitochondrial biogenesis and functions in HTR-8/SVneo cells. DISCUSSION Silencing of SLP2 inhibited the proliferation, migration and invasion of HTR-8/SVneo cells via the impairment of mitochondrial functions. This indicates that the downregulation of SLP2 in miscarriage placenta could be part of the pathogenesis and pathophysiology of the disease.
Collapse
Affiliation(s)
- Xue Zhang
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China; The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China
| | - Bing-Yi Li
- Department of Obstetrics and Gyaanecology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, PR China; Wuhan Medical & Healthcare for Woman and Children, Wuhan, 430015, PR China
| | - Li-Juan Fu
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China; School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Enoch Appiah Adu-Gyamfi
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China
| | - Bai-Ruo Xu
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China
| | - Tai-Hang Liu
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China; The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China
| | - Xue-Mei Chen
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China; The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China
| | - Xi Lan
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China
| | - Ying-Xiong Wang
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China; The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China
| | - Hong-Bing Xu
- Department of Obstetrics and Gyaanecology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, PR China.
| | - Yu-Bin Ding
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China; The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, PR China.
| |
Collapse
|
20
|
Duan FM, Fu LJ, Wang YH, Adu-Gyamfi EA, Ruan LL, Xu ZW, Xiao SQ, Chen XM, Wang YX, Liu TH, Ding YB. THBS1 regulates trophoblast fusion through a CD36-dependent inhibition of cAMP, and its upregulation participates in preeclampsia. Genes Dis 2020; 8:353-363. [PMID: 33997182 PMCID: PMC8093648 DOI: 10.1016/j.gendis.2020.05.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 12/28/2019] [Revised: 05/11/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023] Open
Abstract
Preeclampsia is a pregnancy complication which threatens the survival of mothers and fetuses. It originates from abnormal placentation, especially insufficient fusion of the cytotrophoblast cells to form the syncytiotrophoblast. In this study, we found that THBS1, a matricellular protein that mediates cell-to-cell and cell-to-matrix interactions, is downregulated during the fusion of primary cytotrophoblast and BeWo cells, but upregulated in the placenta of pregnancies complicated by preeclampsia. Also, THBS1 was observed to interact with CD36, a membrane signal receptor and activator of the cAMP signaling pathway, to regulate the fusion of cytotrophoblast cells. Overexpression of THBS1 inhibited the cAMP signaling pathway and reduced the BeWo cells fusion ratio, while the effects of THBS1 were abolished by a CD36-blocking antibody. Our results suggest that THBS1 signals through a CD36-mediated cAMP pathway to regulate syncytialization of the cytotrophoblast cells, and that its upregulation impairs placental formation to cause preeclampsia. Thus, THBS1 can serve as a therapeutic target regarding the mitigation of abnormal syncytialization and preeclampsia.
Collapse
Affiliation(s)
- Fu-Mei Duan
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China
| | - Li-Juan Fu
- Department of Herbal Medicine, School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Yong-Heng Wang
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, 400016, PR China
| | - Enoch Appiah Adu-Gyamfi
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, 400016, PR China
| | - Ling-Ling Ruan
- Department of Herbal Medicine, School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Zeng-Wei Xu
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China
| | - Shi-Quan Xiao
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, 400016, PR China.,Department of Reproductive Medicine, The Third Affiliated Hospital, Chongqing Medical University, Chongqing, 401120, PR China
| | - Xue-Mei Chen
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China.,The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, 400016, PR China
| | - Ying-Xiong Wang
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China.,The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, 400016, PR China
| | - Tai-Hang Liu
- Department of Bioinformatics, The School of Basic Medicine, Chongqing Medical University, Chongqing, 400016, PR China.,The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, 400016, PR China
| | - Yu-Bin Ding
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, PR China.,The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Chongqing, 400016, PR China
| |
Collapse
|
21
|
Mei X, Li F, Fu LJ, Zhang HB, Zhang YQ, Gao W, Huang MR, Liu TL, Guo Y, Shen J. [Clinical characteristics of anomalous origin of the left coronary artery from the pulmonary artery in 91 children]. Zhonghua Er Ke Za Zhi 2019; 57:614-619. [PMID: 31352747 DOI: 10.3760/cma.j.issn.0578-1310.2019.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical manifestations, diagnosis, treatment and prognosis of anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) . Methods: A retrospective study identified 91 patients diagnosed with ALCAPA at Shanghai Children's Medical Center from March 2010 to August 2017. According to the left ventricular ejection fraction (LVEF) at the time of consultation, patients were divided into the cardiac insufficiency group (n=54) and the normal cardiac function group (n=37). Clinical features (age of onset, clinical performance, etc) and auxiliary examinations (electrocardiogram, echocardiography, etc) between the two groups were compared using a t-test and a Chi-square test. Prognostic factors were analyzed by an ordered logistic regression and a Pearson correlation coefficient. Results: (1) The age of diagnosis of patients in the cardiac insufficiency group who were usually misdiagnosed as cardiomyopathy was (10.0±2.6) months (20/54) , whereas the age of diagnosis of patients in the normal cardiac function group who were usually misdiagnosed as valvular diseases was (40.0±7.8) months (4/37). According to the pathophysiological mechanism, forty of the 54 (74%) patients in the cardiac insufficiency group were infantile type, and 78% patients (29/37) in the normal cardiac function group were adult type. (2) Preoperative electrocardiogram showed the deep Q wave in lead I occurred more frequently in the cardiac insufficiency group than in the normal cardiac function group (28/54 vs. 11/37, χ(2)=4.388, P=0.036). (3) Twenty patients died in the cardiac insufficiency group including 12 patients who died from postoperative cardiac pump failure and 8 children who did not undergo surgery due to poor prognosis and died from other reasons. There was no death in the normal cardiac function group. (4) Preoperative LVEF was the unique risk factor affecting prognosis (F=16.872, P=0.005). The preoperative LVEF was significantly lower than the postoperative LVEF ((37±11)% vs. (45±14)%, t=3.614, P=0.001) in the cardiac insufficiency group. During the follow-up period, 6 patients in the cardiac insufficiency group still presented with postoperative cardiac dysfunction, and the patients in the normal cardiac function group still had normal cardiac function. Conclusions: Preoperative LVEF was the unique risk factor affecting prognosis of ALCAPA. Patients with infantile type ALCAPA and preoperative cardiac insufficiency should receive long-term follow-up treatment.
Collapse
Affiliation(s)
- X Mei
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - F Li
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - L J Fu
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - H B Zhang
- Department of Thoracic and Cardiovascular Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Y Q Zhang
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - W Gao
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - M R Huang
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - T L Liu
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Y Guo
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - J Shen
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| |
Collapse
|
22
|
Ji W, Zhang ZF, Shen J, Fu LJ, Shi L, Chen YW, Li F. [Clinical analysis of transcatheter closure of ventricular septal defect with right coronary cusp bulge]. Zhonghua Er Ke Za Zhi 2019; 57:103-107. [PMID: 30695883 DOI: 10.3760/cma.j.issn.0578-1310.2019.02.008] [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 access the feasibility, effectiveness and safety of transcatheter closure of ventricular septal defect (VSD) with right coronary cusp bulge. Methods: The study population consisted of 40 children (22 boys and 18 girls) undergoing transcatheter intervention for VSD with right coronary cusp bulge in Shanghai Children's Medical Center from August 2013 to June 2017. All patients were examined using transthoracic echocardiography and cardiovascular angiography before occlusion and received transcatheter closure of VSD by placing an occlude. During the operation, angiography and transthoracic echocardiography were used to detect residual shunts, new-onset or aggravation of aortic regurgitation, and surface electrocardiogram was used to assess the impact of occlusion on the conduction system. The children were followed up to evaluate the degree of aortic regurgitation and the presence of heart block by transthoracic echocardiography and electrocardiogram in outpatient department. Comparative analysis between two groups was used by t test. Results: The average age of the patients was (5.1±3.2) years, weight(20.6±10.7) kg. The diameter of defect shunt was (3.3±0.9) cm. The VSD of all 40 patients were successfully occluded immediately, and three patients (8%) with filament residual shunt were observed during the operation. No major surgical complication such as death, pericardial tamponade, embolism of important organs, infective endocarditis occurred during the perioperative period. During the follow-up period, the positions of all the occluders were good, the residual shunt in three patients disappeared, and no new-onset or aggravated aortic regurgitation occurred. Electrocardiogram did not reveal any atrioventricular block, and one patient suffered from an incomplete right bundle branch block. There were significant differences between pre- and post-occlusion regarding the left ventricular end diastolic diameter ((3.8±0.5) vs. (3.7±0.5) cm, t=2.092, P=0.043), the left ventricular end systolic diameter ( (2.4±0.3) vs. (2.2±0.4) cm, t=2.068, P=0.045), and the QRS interval ((75.4±10.4) vs. (79.8±11.4) ms, t=-2.277, P=0.028). No significant differences were found between pre- and post-operation regarding the left ventricular ejection fraction (67.8%±4.7% vs. 68.1%±4.6%, t=-0.447, P=0.657) and the PR interval ((125.6±14.7) vs. (122.6±14.2) ms, t=1.540, P=0.132). Conclusions: Interventional closure of VSD with right coronary cusp bulge has small impact on aortic valve activity in children. With appropriate indications and methods, transcatheter interventional occlusion should be considered because it is effective for children diagnosed with VSD combined with right coronary cusp bulge.
Collapse
Affiliation(s)
- W Ji
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai JiaoTong University School of Medicine, Shanghai 200127, China
| | | | | | | | | | | | | |
Collapse
|
23
|
Lan X, Fu LJ, Hu ZY, Feng Q, Liu XQ, Zhang X, Chen XM, He JL, Wang YX, Ding YB. Methylated oligonucleotide (MON)-induced promoter hypermethylation is associated with repression of CDH1 expression and contributes to the migration and invasion of human trophoblast cell lines. Reprod Fertil Dev 2018; 29:1509-1520. [PMID: 27439778 DOI: 10.1071/rd16031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 06/20/2016] [Indexed: 01/08/2023] Open
Abstract
DNA cytosine-5 methylation plays a vital role in regulating the expression of E-cadherin, which is encoded by the CDH1 gene. In this study, we characterised the DNA methylation and expression pattern of CDH1 in an extravillous trophoblast cell line (HTR-8/SVneo) and two trophoblast cell lines -- JEG-3 and JAR. Promoter hypermethylation with reduced E-cadherin expression in HTR-8/SVneo cells and promoter hypomethylation with increased E-cadherin expression in JEG-3 and JAR cells were observed. Demethylation treatment significantly restored E-cadherin expression, contributing to decreases in the motility and invasiveness of HTR-8/SVneo cells. Sense-methylated oligonucleotides (MONs) labelled with Cy5 and complementary to a region of the human CDH1 promoter were designed, with the cytosines in 5'-cytosine-phosphate-guanine-3' (CpG) dinucleotides being replaced by methylated cytosines. Following MON transfection into JEG-3 cells, the level of CDH1 promoter DNA methylation as well as cell motility and invasiveness were increased and gene expression was significantly repressed. Our results indicate that MON-mediated DNA methylation of the CDH1 promoter and subsequent alterations in gene expression may contribute to trophoblast motility and invasion, suggesting a potential method for controlling the biological function of trophoblasts in vitro through epigenetic modification.
Collapse
Affiliation(s)
- Xi Lan
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Li-Juan Fu
- School of Traditional Chinese Medicine, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Zhuo-Ying Hu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, No.1 Youyi Rd, Chongqing, 400016, P.R. China
| | - Qian Feng
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Xue-Qing Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Xue Zhang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Xue-Mei Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Jun-Lin He
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Ying-Xiong Wang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Yu-Bin Ding
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| |
Collapse
|
24
|
Ni CY, Wang ZH, Huang ZP, Zhou H, Fu LJ, Cai H, Huang XX, Yang Y, Li HF, Zhou WP. Early enforced mobilization after liver resection: A prospective randomized controlled trial. Int J Surg 2018; 54:254-258. [PMID: 29753000 DOI: 10.1016/j.ijsu.2018.04.060] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/15/2018] [Accepted: 04/13/2018] [Indexed: 02/07/2023]
Abstract
OBJECTIVE This randomized controlled study investigated the feasibility of early ambulation after liver resection and the effect of the amount of activity on postoperative recovery. METHODS A total of 120 patients who underwent liver resection were randomly divided into two groups for the comparative analysis of the following factors: amount of activity, pain control, sleeping state, perioperative gastrointestinal function recovery, incidence of complications and postoperative hospital stay. RESULTS Compared with the control group, patients undergoing liver resection performing early postoperative ambulation had faster gastrointestinal function recovery (First exhaust time 2.2 ± 1.4 vs. 3.3 ± 2.3 p < 0.01; First flatus time 2.3 ± 1.7 vs. 3.1 ± 2.5 p = 0.04) and shorter postoperative hospital stays (6.6 ± 2.3 vs. 7.7 ± 2.1 p = 0.01), with statistically significant differences. There was no significant difference in the incidence of postoperative complications between the two groups (p > 0.05). CONCLUSION Early ambulation after liver resection is safe and feasible. It can reduce the patient's pain and economic burden, increase the patient's comfort, reduce the nursing workload, achieve rapid recovery, and improve patient satisfaction.
Collapse
Affiliation(s)
- Chun-Yan Ni
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215153, Jiangsu Province, China; Suzhou Science & Technology Town Hospital, Suzhou 215153, Jiangsu Province, China; Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Zhi-Hong Wang
- Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Zhi-Ping Huang
- Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Hui Zhou
- Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Li-Juan Fu
- Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Hui Cai
- Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Xuan-Xuan Huang
- Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Yuan Yang
- Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China.
| | - Hui-Fen Li
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215153, Jiangsu Province, China; Suzhou Science & Technology Town Hospital, Suzhou 215153, Jiangsu Province, China.
| | - Wei-Ping Zhou
- Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China.
| |
Collapse
|
25
|
Lan X, Fu LJ, Zhang J, Liu XQ, Zhang HJ, Zhang X, Ma MF, Chen XM, He JL, Li LB, Wang YX, Ding YB. Bisphenol A exposure promotes HTR-8/SVneo cell migration and impairs mouse placentation involving upregulation of integrin-β1 and MMP-9 and stimulation of MAPK and PI3K signaling pathways. Oncotarget 2017; 8:51507-51521. [PMID: 28881663 PMCID: PMC5584264 DOI: 10.18632/oncotarget.17882] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [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: 09/28/2016] [Accepted: 04/19/2017] [Indexed: 12/21/2022] Open
Abstract
In this study, we investigated the effect of Bisphenol A (BPA), an endocrine-disrupting chemical, on the migration of human trophoblasts and mouse placentation by using the primary extravillous trophoblast (EVT) and its cell line HTR-8/SVneo, villous explant cultures, and pregnant mice. BPA increased EVT motility and the outgrowth of villous explants in a dose-dependent manner. BPA also increased the protein levels of integrin-β1 and matrix metalloproteinase (MMP)-9 in human EVTs. Low-dose BPA (≤50 mg) increased the protein levels of MMP-9 and MMP-2 as well as integrin-β1 and integrin-α5 in mouse placenta and decreased the proportion of the labyrinth and spongiotrophoblast layers. Inhibitors of mitogen-activated protein kinase (MAPK) U0126 and phosphatidylinositol-3-kinases (PI3K) LY294002 reversed the protein levels of integrin-β1 and MMP-9 as well as the migratory ability induced by BPA. In conclusion, these results indicated that BPA can enhance trophoblast migration and impair placentation in mice by a mechanism involving upregulation of integrin(s) and MMP(s) as well as the stimulation of MAPK and PI3K/Akt (protein kinase B) signaling pathways.
Collapse
Affiliation(s)
- Xi Lan
- Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Li-Juan Fu
- Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, P.R. China.,Department of Immunology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, 15260, USA
| | - Jun Zhang
- Center of Molecular Diagnostic Medicine, Life Science Institute, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Xue-Qing Liu
- Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Hui-Jie Zhang
- Ministry of Education Key Laboratory of Diagnostic Medicine, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Xue Zhang
- Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Ming-Fu Ma
- The Key Laboratory of Birth Defects and Reproductive Health of the National Health and Family Planning Commission, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401147, P.R. China
| | - Xue-Mei Chen
- Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Jun-Lin He
- Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Lian-Bing Li
- The Key Laboratory of Birth Defects and Reproductive Health of the National Health and Family Planning Commission, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401147, P.R. China
| | - Ying-Xiong Wang
- Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Yu-Bin Ding
- Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, P.R. China
| |
Collapse
|
26
|
Zhang X, Fu LJ, Liu XQ, Hu ZY, Jiang Y, Gao RF, Feng Q, Lan X, Geng YQ, Chen XM, He JL, Wang YX, Ding YB. nm23 regulates decidualization through the PI3K-Akt-mTOR signaling pathways in mice and humans. Hum Reprod 2016; 31:2339-51. [PMID: 27604954 DOI: 10.1093/humrep/dew191] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [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: 02/29/2016] [Accepted: 07/08/2016] [Indexed: 12/22/2022] Open
Abstract
STUDY QUESTION Does nm23 have functional significance in decidualization in mice and humans? SUMMARY ANSWER nm23 affects decidualization via the phosphoinositide 3 kinase/mammalian target of rapamycin (PI3K-Akt-mTOR) signaling pathways in mouse endometrial stromal cells (ESCs; mESCs) and human ESCs. WHAT IS KNOWN ALREADY The function of nm23 in suppressing metastasis has been demonstrated in a variety of cancer types. nm23 also participates in the control of DNA replication and cell proliferation and differentiation. STUDY DESIGN, SIZE AND DURATION We first analyzed the expression profile of nm23 in mice during early pregnancy (n = 6/group), pseudopregnancy (n = 6/group) and artificial decidualization (n = 6/group) and in humans during the menstrual cycle phases and the first trimester. We then used primary cultured mESCs and a human ESC line, T-HESC, to explore the hormonal regulation of nm23 and the roles of nm23 in in vitro decidualization, and as a possible mediator of downstream PI3K-Akt-mTOR signaling pathways. PARTICIPANTS/MATERIALS, SETTINGS AND METHODS We evaluated the dynamic expression of nm23 in mice and humans using immunohistochemistry, western blot and real-time quantitative RT-PCR (RT-qPCR). Regulation of nm23 by steroid hormones was investigated in isolated primary mESCs and T-HESCs by western blot. The effect of nm23 knockdown (using siRNA) on ESC proliferation was analyzed by 5-ethynyl-2'-deoxyuridine staining (EdU) and proliferating cell nuclear antigen protein (PCNA) expression. The influence of nm23 expression on the differentiation of ESCs was determined by RT-qPCR using the mouse differentiation markers decidual/trophoblast PRL-related protein (dtprp, also named prl8a2) and prolactin family 3 subfamily c member 1 (prl3c1) and the human differentiation markers insulin-like growth factor binding protein 1 (IGFBP1) and prolactin (PRL). The effects of nm23 siRNA (si-nm23) and the PI3K inhibitor LY294002 on the downstream effects of nm23 on the PI3K-Akt-mTOR signaling pathway were estimated by western blot. MAIN RESULTS AND THE ROLE OF CHANCE NM23-M1 was specifically expressed in the decidual zone during early pregnancy and in artificially induced deciduoma, and NM23-H1 was strongly expressed in human first trimester decidua. The expression of nm23 was upregulated by oestradiol and progesterone (P < 0.05 versus control) in vitro in mESCs and T-HESC, and this was inhibited by their respective receptor antagonists, ICI 182,780 and RU486. Mouse and human nm23 knockdown decreased ESC proliferation and differentiation (P < 0.05 versus control). The PI3K-Akt-mTOR signaling pathways were downstream mediators of nm23 in mESCs and T-HESCs decidualization. LIMITATIONS AND REASONS FOR CAUTION Whether the nm23 regulates decidualization via the activation of AMPK, RAS, PKA, STAT3 or other signaling molecules remains to be determined. The role of nm23 in decidualization was tested in vitro only. WIDER IMPLICATIONS OF THE FINDINGS Results demonstrate that nm23 plays a vital role in decidualization in mice and humans and that nm23 gene expression is hormonally regulated. The downregulation of nm23 in decidua during the first trimester may be associated with infertility in women. STUDY FUNDING/COMPETING INTERESTS This study was supported by the National Natural Science Foundation of China (grant nos. 81370731, 31571551 and 31571190), the Science and Technology Project of Chongqing Education Committee (KJ130309), open funding by the Chongqing Institute for Family Planning (1201) and the Excellent Young Scholars of Chongqing Medical University (CQYQ201302). The authors have no conflicts of interest to declare.
Collapse
Affiliation(s)
- Xue Zhang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, P. R. China
| | - Li-Juan Fu
- School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, P. R. China
| | - Xue-Qing Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, P. R. China
| | - Zhuo-Ying Hu
- Department of Obstetrics and Gynecology, the First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, P. R. China
| | - Yu Jiang
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh 15261, PA, USA
| | - Ru-Fei Gao
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, P. R. China
| | - Qian Feng
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, P. R. China
| | - Xi Lan
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, P. R. China
| | - Yan-Qing Geng
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, P. R. China
| | - Xue-Mei Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, P. R. China
| | - Jun-Lin He
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, P. R. China
| | - Ying-Xiong Wang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, P. R. China
| | - Yu-Bin Ding
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, P. R. China
| |
Collapse
|
27
|
Wen CJ, Wu LX, Fu LJ, Yu J, Zhang YW, Zhang X, Zhou HH. Genomic screening for targets regulated by berberine in breast cancer cells. Asian Pac J Cancer Prev 2014; 14:6089-94. [PMID: 24289631 DOI: 10.7314/apjcp.2013.14.10.6089] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Berberine, a common isoquinoline alkaloid, has been shown to possess anti-cancer activities. However, the underlying molecular mechanisms are still not completely understood. In the current study, we investigated the effects of berberine on cell growth, colony formation, cell cycle distribution, and whether it improved the anticancer efficiency of cisplatin and doxorubicin in human breast cancer estrogen receptor positive (ER+) MCF-7 cells and estrogen receptor negative (ER-) MDA-MB-231 cells. Notably, berberine treatment significantly inhibited cell growth and colony formation in the two cell lines, berberine in combination with cisplatin exerting synergistic growth inhibitory effects. Accompanied by decreased growth, berberine induced G1 phase arrest in MCF-7 but not MDA-MB-231 cells. To provide a more detailed understanding of the mechanisms of action of berberine, we performed genome-wide expression profiling of berberine-treated cells using cDNA microarrays. This revealed that there were 3,397 and 2,706 genes regulated by berberine in MCF-7 and MDA-MB-231 cells, respectively. Fene oncology (GO) analysis identified that many of the target genes were involved in regulation of the cell cycle, cell migration, apoptosis, and drug responses. To confirm the microarray data, qPCR analysis was conducted for 10 selected genes based on previously reported associations with breast cancer and GO analysis. In conclusion, berberine exhibits inhibitory effects on breast cancer cells proliferation, which is likely mediated by alteration of gene expression profiles.
Collapse
Affiliation(s)
- Chun-Jie Wen
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China E-mail :
| | | | | | | | | | | | | |
Collapse
|
28
|
Abstract
Novel, high-sensitivity and high-resolution spectroscopic methods can provide site-specific nuclear information by exploiting nuclear magneto-optic properties. We present a first-principles electronic structure formulation of the recently proposed nuclear-spin-induced Cotton-Mouton effect in a strong external magnetic field (NSCM-B). In NSCM-B, ellipticity is induced in a linearly polarized light beam, which can be attributed to both the dependence of the symmetric dynamic polarizability on the external magnetic field and the nuclear magnetic moment, as well as the temperature-dependent partial alignment of the molecules due to the magnetic fields. Quantum-chemical calculations of NSCM-B were conducted for a series of molecular liquids. The overall order of magnitude of the induced ellipticities is predicted to be 10(-11) -10(-6) rad T(-1) M(-1) cm(-1) for fully spin-polarized nuclei. In particular, liquid-state heavy-atom systems should be promising for experiments in the Voigt setup.
Collapse
Affiliation(s)
- Li-Juan Fu
- NMR Research Group, Department of Physics, University of Oulu, P.O. Box 3000, FIN-90014 Oulu (Finland), Fax: (+358) (0)8-553 1287..
| | | |
Collapse
|
29
|
Wen CJ, Wu LX, Fu LJ, Shen DY, Zhang X, Zhang YW, Yu J, Zhou HH. Preferential Induction of CYP1A1 over CYP1B1 in Human Breast Cancer MCF-7 Cells after Exposure to Berberine. Asian Pac J Cancer Prev 2014; 15:495-9. [DOI: 10.7314/apjcp.2014.15.1.495] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
30
|
Fu LJ, Ding YB, Wu LX, Wen CJ, Qu Q, Zhang X, Zhou HH. The Effects of Lycopene on the Methylation of the GSTP1 Promoter and Global Methylation in Prostatic Cancer Cell Lines PC3 and LNCaP. Int J Endocrinol 2014; 2014:620165. [PMID: 25389438 PMCID: PMC4217342 DOI: 10.1155/2014/620165] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 08/29/2014] [Accepted: 09/01/2014] [Indexed: 11/18/2022] Open
Abstract
DNA (cytosine-5-) methylation silencing of GSTP1 function occurs in prostate adenocarcinoma (PCa). Previous studies have shown that there is an inverse relationship between dietary lycopene intake and the risk of PCa. However, it is unknown whether lycopene reactivates the tumor suppressor gene glutathioneS-transferase-π (GSTP1) by demethylation of the hypermethylated CpGs that act to silence the GSTP1 promoter. Here, we demonstrated that lycopene treatment significantly decreased the methylation levels of the GSTP1 promoter and increased the mRNA and protein levels of GSTP1 in an androgen-independent PC-3 cell line. In contrast, lycopene treatment did not demethylate the GSTP1 promoter or increase GSTP1 expression in the androgen-dependent LNCaP cell line. DNA methyltransferase (DNMT) 3A protein levels were downregulated in PC-3 cells following lycopene treatment; however, DNMT1 and DNMT3B levels were unchanged. Furthermore, the long interspersed element (LINE-1) and short interspersed element ALU were not demethylated when treated by lycopene. In LNCaP cells, lycopene treatment did not affect any detected DNMT protein expression, and the methylation levels of LINE-1 and ALU were decreased. These results indicated that the protective effect of lycopene on the prostate is different between androgen-dependent and androgen-independent derived PCa cells. Further, in vivo studies should be conducted to confirm these promising results and to evaluate the potential role of lycopene in the protection of the prostate.
Collapse
Affiliation(s)
- Li-Juan Fu
- Institute of Life Sciences, Chongqing Medical University, No. 1 Yixueyuan Road, Chongqing 400016, China
- Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Yu-Bin Ding
- Institute of Life Sciences, Chongqing Medical University, No. 1 Yixueyuan Road, Chongqing 400016, China
| | - Lan-Xiang Wu
- Institute of Life Sciences, Chongqing Medical University, No. 1 Yixueyuan Road, Chongqing 400016, China
| | - Chun-Jie Wen
- Institute of Life Sciences, Chongqing Medical University, No. 1 Yixueyuan Road, Chongqing 400016, China
| | - Qiang Qu
- Pharmacogenetics Research Institute, Central South University, Changsha, Hunan 410078, China
| | - Xue Zhang
- Institute of Life Sciences, Chongqing Medical University, No. 1 Yixueyuan Road, Chongqing 400016, China
| | - Hong-Hao Zhou
- Institute of Life Sciences, Chongqing Medical University, No. 1 Yixueyuan Road, Chongqing 400016, China
- *Hong-Hao Zhou:
| |
Collapse
|
31
|
Qu Q, Qu J, Zhan M, Wu LX, Zhang YW, Lou XY, Fu LJ, Zhou HH. Different involvement of promoter methylation in the expression of organic cation/carnitine transporter 2 (OCTN2) in cancer cell lines. PLoS One 2013; 8:e76474. [PMID: 24146874 PMCID: PMC3797819 DOI: 10.1371/journal.pone.0076474] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 08/29/2013] [Indexed: 01/12/2023] Open
Abstract
Organic cation/carnitine transporter 2 (OCTN2) is responsible for the cellular uptake of the antineoplastic agent, oxaliplatin. Epigenetic modification is a possible mechanism of altered drug-transporter expression in cancers, leading to altered efficacy of chemotherapeutic drugs. However, the mechanisms governing OCTN2 regulation are not completely understood. In this study, the low levels of OCTN2 in HepG2 and LS174T cells were elevated by the demethylating reagent, decitabine (DCA). To further reveal the epigenetic mechanism of down-regulation of OCTN2, we found that Region-1 within the OCTN2 promoter (spanning −354 to +85) was a determinant of OCTN2 expression in a luciferase reporter assay. Moreover, methylation-specific PCR (MSP) and bisulfite genomic sequencing showed that the degree of individual methylated CpG sites within this region was inversely correlated with the levels of OCTN2 in different cancer cells. Application of DCA to HepG2 and LS174T cells reversed the hypermethylation status of the OCTN2 promoter and increased OCTN2 expression, enhancing cellular uptake of oxaliplatin. Thus, we identified that promoter methylation is responsible for epigenetic down-regulation of OCTN2 in HepG2 and LS174T cells. Given the essential role of OCTN2 in cancer cell uptake of chemotherapeutics, and thus treatment efficacy, pretreatment with a demethylating reagent is a possible strategy for optimizing pharmacotherapies against cancers.
Collapse
Affiliation(s)
- Qiang Qu
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jian Qu
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Min Zhan
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Lan-Xiang Wu
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Yi-Wen Zhang
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xiao-Ya Lou
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Li-Juan Fu
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Hong-Hao Zhou
- Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- * E-mail:
| |
Collapse
|
32
|
Zhang TT, Tang SS, Fu LJ. The effectiveness of different concentrations of chlorhexidine for prevention of ventilator-associated pneumonia: a meta-analysis. J Clin Nurs 2013; 23:1461-75. [PMID: 23952970 DOI: 10.1111/jocn.12312] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/25/2013] [Indexed: 11/28/2022]
Abstract
AIMS AND OBJECTIVES To evaluate the effectiveness of chlorhexidine for the prevention of ventilator-associated pneumonia and explore the preferred concentration of chlorhexidine. BACKGROUND The implementation of effective oral care measures could reduce the incidence of ventilator-associated pneumonia, but among several randomised controlled trials, whether using chlorhexidine is effective and which concentration is more appropriate remain controversial. DESIGN A meta-analysis was conducted. METHODS We searched the Cochrane Library, PubMed, Embase, Cumulative Index to Nursing and Allied Health Literature, China Biology Medicine disc and Chinese National Knowledge Infrastructure to collect randomised controlled trials of mechanically ventilated adult patients receiving oral care with chlorhexidine to prevent ventilator-associated pneumonia. The quality of randomised controlled trials was critically appraised, data were extracted by two reviewers independently, and disagreement was resolved by consensus. Meta-analyses were conducted for the eligible randomised controlled trials by revman 5.1. Relative risks and 95% CIs were calculated with the Mantel-Haenszel model, and heterogeneity was assessed with the I(2) test. RESULTS Eighteen randomised controlled trials were included and a meta-analysis was used. All studies indicated chlorhexidine could significantly prevent and reduce the incidence of ventilator-associated pneumonia [RR = 0·59, 95% CI (0·50-0·69), p < 0·00001]. Nine studies showed 0·12% chlorhexidine had a significant effect [RR = 0·53, 95% CI (0·43-0·67), p < 0·00001]. Three studies proved the effect of the 2% chlorhexidine on the prevention of ventilator-associated pneumonia [RR = 0·55, 95% CI (0·37-0·81), p = 0·002]. CONCLUSION Chlorhexidine can prevent and reduce the incidence of ventilator-associated pneumonia. Chlorhexidine of 0·12% has the best effect on the prevention of ventilator-associated pneumonia according to the meta-analysis, cost analysis, adverse reactions and drug resistance analysis. RELEVANCE TO CLINICAL PRACTICE Ventilator-associated pneumonia remains a leading cause of morbidity and mortality in intensive care unit, and implementing effective oral care can reduce the incidence of ventilator-associated pneumonia. Chlorhexidine of 0·12% is recommended in our study.
Collapse
Affiliation(s)
- Ting-Ting Zhang
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Jiaotong University School of Medicine, Shanghai, China
| | | | | |
Collapse
|
33
|
Ma YX, Song ZW, Teng X, Fu LJ, Hao ML, Chen SJ, Xu WZ, Gu HX. Successful establishment and evaluation of a new animal model for studying the hepatitis B virus YVDD mutant. Arch Virol 2012. [PMID: 23183771 DOI: 10.1007/s00705-012-1550-1] [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: 10/27/2022]
Abstract
The treatment of infection with lamivudine-resistant mutants of hepatitis B virus (HBV) with mutations in the YMDD motif has become a crucial issue in the clinic. In this work, the plasmids pcDNA3.1 (+)-HBV/C-YVDD and pcDNA3.1 (+)-HBV/C-YMDD were constructed and injected into BALB/c mice using a hydrodynamics-based procedure to investigate viral replication and expression of HBV lamivudine-resistant YVDD mutants in vivo. Compared with the YMDD group, HBsAg levels were higher in sera of mice in the YVDD group, but HBeAg levels were lower on day 1 after injection. Levels of HBcAg in hepatocytes were higher in the YVDD group on day 1, whereas the HBsAg levels were lower. The levels of HBV mRNA in the liver were higher in mice in the YVDD group on day 1 after injection. The results showed that injection with these plasmids resulted in efficient initiation of replication of HBV in mice and also suggested that the combined mutations in YVDD mutants could affect the replication process.
Collapse
Affiliation(s)
- Yan-Xiu Ma
- Department of Microbiology, The Heilongjiang Key Laboratory of Immunity and Infection, Pathogenic Biology, Harbin Medical University, 157 Baojian Road, Nangang, Harbin, Heilongjing, 150081, China
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Li JX, Fu LJ, Yang XG, Wang K. Integrin-mediated signaling contributes to gadolinium-containing-particle-promoted cell survival and G₁ to S phase cell cycle transition by enhancing focal adhesion formation. J Biol Inorg Chem 2011; 17:375-85. [PMID: 22086330 DOI: 10.1007/s00775-011-0859-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Accepted: 11/03/2011] [Indexed: 01/14/2023]
Abstract
We previously reported that Gd-containing particles formed under physiological conditions act as active entities to enhance cell survival and promote S phase entry via activation of both mitogen-activated protein kinase/extracellular-signal-regulated protein kinase (ERK) and phosphatidylinositol 3-kinase/Akt signaling pathways. However, how they transduce the extracellular signal inside the cell remains unclear. The present study demonstrates that Gd-containing particles can alleviate serum-deprivation-induced cell death and promote G₁ to S phase cell cycle progression by enhancing cell adhesion to the extracellular matrix. As an indicator of adhesion, the vinculin distribution was detected by confocal laser scanning microscopy. The control cells exhibited fewer and less typical focal adhesions. After treatment with Gd-containing particles, a large number of vinculin-containing focal adhesions were maintained. In the presence of integrin antagonists, the percentage of S phase entry induced by Gd-containing particles was decreased and the enhancement of cell viability was also attenuated, along with a decrease in both cyclin D expression and ERK phosphorylation. In summary, the present results suggest that the integrin-mediated signaling pathway plays an important role in cell survival and G₁ to S phase transition promoted by Gd-containing particles by enhancing focal adhesion formation. The results presented here provide novel evidence to advance knowledge leading to further understanding of the mechanisms of both cell proliferation and cell survival promoted by Gd and may be helpful for developing effective measures to prevent or treat nephrogenic systemic fibrosis.
Collapse
Affiliation(s)
- Jin-Xia Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China
| | | | | | | |
Collapse
|
35
|
Affiliation(s)
- Li-Juan Fu
- a State Key Laboratory of Theoretical and Computational Chemistry , Institute of Theoretical Chemistry, Jilin University , Changchun 130023, People's Republic of China
| | - Chang-Bin Shao
- a State Key Laboratory of Theoretical and Computational Chemistry , Institute of Theoretical Chemistry, Jilin University , Changchun 130023, People's Republic of China
| | - Lin Jin
- a State Key Laboratory of Theoretical and Computational Chemistry , Institute of Theoretical Chemistry, Jilin University , Changchun 130023, People's Republic of China
| | - Yi-Hong Ding
- a State Key Laboratory of Theoretical and Computational Chemistry , Institute of Theoretical Chemistry, Jilin University , Changchun 130023, People's Republic of China
| |
Collapse
|
36
|
Fu LJ, Jin L, Shao CB, Ding YH. Understanding the borane analogy in Al(n)H(n+4) (n = 5-19): unprecedented stability of a non-Wade-Mingos cluster Al(8)H(12) fused by two T(d)-like Al(4)H(6). Inorg Chem 2010; 49:5276-84. [PMID: 20438107 DOI: 10.1021/ic100429b] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Contrasting the boranes B(n)H(n+4) with rich chemistry, the alanes Al(n)H(n+4) remain largely unknown in laboratory, except for the simplest Al(2)H(6). Though recent experimental and theoretical studies have proved Al(n)H(n+2) to be the borane analogues, whether or not the borane analogy can exist for the more complicated Al(n)H(n+4) is still unclear. In this paper, we find that at the B3PW91/TZVP level, Al(n)H(n+4) each has a nido-single cluster ground structure as B(n)H(n+4) for n < 12. For n >or= 12, the fusion cluster becomes energetically more competitive than the single cluster also as B(n)H(n+4). Thus, concerning the ground structures, the alanes Al(n)H(n+4) (n = 5-19) could be considered as the borane analogues. Remarkably, Al(8)H(12) has a novel closo(4)-closo(4) cluster fused by two T(d)-like subunits Al(4)H(6), lying only 0.49 kcal/mol above the single cluster. The Born-Oppenheimer molecular dynamic simulation shows that the closo(4)-closo(4) fusion cluster intrinsically has high kinetic stability, which can be ascribed to the rigidity of the T(d)-Al(4)H(6) subunit. Since T(d)-Al(4)H(6) has been experimentally characterized in a gas phase very recently, we strongly recommend that the unprecedented non-Wade-Mingos alane Al(8)H(12) can be effectively formed via the direct dimerization between two T(d)-Al(4)H(6), with the reaction energy (-39.65 kcal/mol) very similar to that of the known dialane (2AlH(3) --> Al(2)H(6), -35.27 kcal/mol).
Collapse
Affiliation(s)
- Li-Juan Fu
- State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China
| | | | | | | |
Collapse
|
37
|
Fang Y, Teng X, Xu WZ, Li D, Zhao HW, Fu LJ, Zhang FM, Gu HX. Molecular characterization and functional analysis of occult hepatitis B virus infection in Chinese patients infected with genotype C. J Med Virol 2009; 81:826-35. [PMID: 19319940 DOI: 10.1002/jmv.21463] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Occult HBV infection is defined as the persistence of HBV DNA in individuals negative for HBV surface antigen (HBsAg), and many different mechanisms have been reported in different countries. However, in China, one of the endemic areas for HBV infection, no reports have been published on occult HBV infection. The present study investigated the virological features and the mechanism of occult HBV infection in China. Full-length HBV DNA from eight patients with occult HBV infection (S1-S8) and three HBsAg-positive cases (SWT1-SWT3) was cloned and sequenced. Additionally, four entire linear HBV genomes from occult cases were transfected transiently into HepG2 cells. The sequencing results showed two major mutations in patients with occult HBV infection as follows: deletions in the pre-S1 (S3, S4, and S7) and X (S1, S2, and S5) regions. Such deletions covered the S promoter and the basal core promoter (BCP), and function analysis of these variants also showed a decrease in DNA replication and antigen expression. Two patients with occult infection (S6 and S8) had no mutations capable of interfering with viral replication and gene expression in the major viral population. Thus, the deletions in the S promoter and the BCP regions that disable the regulatory elements may be the reason for the absence of HBsAg, and multiple mechanisms may be responsible for occult HBV infection.
Collapse
Affiliation(s)
- Yong Fang
- Department of Microbiology, Harbin Medical University, Harbin, China
| | | | | | | | | | | | | | | |
Collapse
|
38
|
Fang Y, Shang QL, Liu JY, Li D, Xu WZ, Teng X, Zhao HW, Fu LJ, Zhang FM, Gu HX. Prevalence of occult hepatitis B virus infection among hepatopathy patients and healthy people in China. J Infect 2009; 58:383-8. [DOI: 10.1016/j.jinf.2009.02.013] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2008] [Revised: 02/11/2009] [Accepted: 02/16/2009] [Indexed: 12/13/2022]
|
39
|
Zhang Y, Fu LJ, Li JX, Yang XG, Yang XD, Wang K. Gadolinium promoted proliferation and enhanced survival in human cervical carcinoma cells. Biometals 2009; 22:511-9. [DOI: 10.1007/s10534-009-9208-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2008] [Accepted: 01/14/2009] [Indexed: 11/28/2022]
|
40
|
Fu LJ, Li JX, Yang XG, Wang K. Gadolinium-promoted cell cycle progression with enhanced S-phase entry via activation of both ERK and PI3K signaling pathways in NIH 3T3 cells. J Biol Inorg Chem 2008; 14:219-27. [DOI: 10.1007/s00775-008-0442-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2008] [Accepted: 10/08/2008] [Indexed: 01/13/2023]
|
41
|
Sun JY, Jing MY, Weng XY, Fu LJ, Xu ZR, Zi NT, Wang JF. Effects of dietary zinc levels on the activities of enzymes, weights of organs, and the concentrations of zinc and copper in growing rats. Biol Trace Elem Res 2005; 107:153-65. [PMID: 16217140 DOI: 10.1385/bter:107:2:153] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2004] [Accepted: 12/17/2004] [Indexed: 11/11/2022]
Abstract
Zinc (Zn) is an essential nutrient that is required in humans and animals for many physiological functions, including immune and antioxidant function, growth, and reproduction. The present study was performed to investigate the effects of three Zn levels, including Zn adequate (35.94 mg/kg, as a control), Zn deficiency (3.15 mg/kg), and Zn overload (347.50 mg/kg) in growing male rats for 6 wk. This allowed for evaluation of the effects that these Zn levels might have on body weight, organ weight, enzymes activities, and tissues concentrations of Zn and Cu. The results showed that Zn deficiency has negative effects on growth, organ weight, and biological parameters such as alkaline phosphatase (ALP) and Cu-Zn superoxide dismutase (Cu-Zn SOD) activities, whereas Zn overload played an effective role in promoting growth, improving the developments of organs and enhancing immune system. Hepatic metallothionein (MT) concentration showed an identical increase tendency in rats fed both Zn-deficient and Zn-overload diets. The actual mechanism of reduction of Cu concentration of jejunum in rats fed a Zn-overload diet might involve the modulation or inhibition of a Cu transporter protein by Zn and not by the induction of MT.
Collapse
Affiliation(s)
- J Y Sun
- Institute of Feed Science, Zhejiang University, No. 164 Qiutao North Road, Hangzhou 310029, China
| | | | | | | | | | | | | |
Collapse
|
42
|
Zhou QF, Wang HX, Wang YW, Fu LJ, Shan D, Liu H. [Effect of high glucose and high insulin on NE-induced cardiac hypertrophy of the cultured myocardial cells]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2005; 21:305-309. [PMID: 21162204] [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: 05/30/2023]
Abstract
AIM To study the effect of diabetes-like environment on the cardiac hypertrophy, cultured cardiomyocytes were used to study the effect of high insulin and high glucose on norepinephrine (NE)-induced cardiac hypertrophy. METHODS Using cultured myocardial cells as a model, the cellular hypertrophy was observed. The contracting frequency was counted by the inverted microscope, the protein content was assayed with Lowry's method, the cardiomyocytes' volumes were measured by computer photograph analysis system, the protein synthesis was assayed with [3H] leucine intake method. RESULTS The total cellular protein content, cellular volumes, cellular protein synthesis showed an increase in high insulin group and high glucose group compared with control group. High insulin and high glucose and NE group showed a further increase compared with high glucose and NE group. CONCLUSION The high insulin itself induces hypertrophy of the cultured myocardial cells slightly. Meanwhile, imitating diabetes-like environment with high insulin and high glucose and NE can further accelerate hypertrophy of the cultured myocardial cells.
Collapse
Affiliation(s)
- Qing-Feng Zhou
- Department of Pharmacology, Jinzhou Medical College, Jinzhou 121001, China
| | | | | | | | | | | |
Collapse
|
43
|
Fu LJ, Duan XL, Qian ZM. [Iron metabolism and iron-regulatory hormone, hepcidin]. Sheng Li Ke Xue Jin Zhan 2005; 36:233-6. [PMID: 16270824] [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: 05/05/2023]
|
44
|
Fu LJ, Lü SL, Cheng XF, Wang XY. Alterations of HCV in peripheral blood mononuclear cells from IFN-treated patients with chronic HCV RNA infection. Shijie Huaren Xiaohua Zazhi 2004; 12:610-613. [DOI: 10.11569/wcjd.v12.i3.610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To study HCV RNA and HCV protein expression in peripheral blood mononuclear cells (PBMC) and to evaluate the therapeutic efficacy of alpha 2b interferon on the treatment of HCV RNA in PBMC of patients with chronic hepatitis C.
METHODS: Fluorescence quantitative RT-PCR was used to detect the quantitation of HCV RNA in PBMC and plasma, and immunohistochemistry assay was applied to identify HCV NS3 protein expression in PBMC from 20 patients with chronic hepatitis C; Eight patients with chronic hepatitis C received IFN therapy (5 MU/d, three times/week for 16 wks). HCV RNA load in plasma and PBMC was tested with a quantitative assay before and after treatment for 16 wks and compared with that of the control. The data were analyzed by Wilcoxon 2-sample test and Fisher's exact test.
RESULTS: HCV RNA in plasma was found in 15 of 20 (75%) chronic hepatitis C patients and in PBMC was found in 9 of 20 (45%) by fluorescence quantitative RT-PCR. HCV NS3 protein expression was found in 7 of 20 (35%) chronic hepatitis C patients by immunohistochemical assay. HCV RNA loads in PBMC was uncorrelated with those in plasma.In 8 patients, there were significant differences of the decreasing of HCV-RNA loads in plasma and PBMC between before and after interferon treatment for 16 wks (aP = 0.0 017, bP = 0.0 059).The loads of HCV in plasma and PBMC in patients were significantly lower than that of controls after interferon treatment for 16 wks (cP = 0.0 042, dP = 0.0 155).
CONCLUSION: HCV can infect, replicate and express in PBMC. HCV RNA loads in PBMC is uncorrelated with those in plasma. HCV RNA in PBMC can be cleaned out by alpha 2b interferon treatment.
Collapse
|
45
|
Ohira R, Zhang YH, Guo W, Dipple K, Shih SL, Doerr J, Huang BL, Fu LJ, Abu-Khalil A, Geschwind D, McCabe ERB. Human ARX gene: genomic characterization and expression. Mol Genet Metab 2002; 77:179-88. [PMID: 12359145 DOI: 10.1016/s1096-7192(02)00126-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Arx is a homeobox-containing gene with a high degree of sequence similarity between mouse and zebrafish. Arx is expressed in the forebrain and floor plate of the developing central nervous systems of these vertebrates and in the presumptive cortex of fetal mice. Our goal was to identify genes in Xp22.1-p21.3 involved in human neuronal development. Our in silico search for candidate genes noted that annotation of a human Xp22 PAC (RPCI1-258N20) sequence (GenBank Accession No. AC002504) identified putative exons consistent with an Arx homologue in Xp22. Northern blot analysis showed that a 3.3kb human ARX transcript was expressed at high levels in fetal brain. A 5.9kb transcript was expressed in adult heart, skeletal muscle, and liver with very faint expression in other adult tissues, including brain. In situ hybridization of ARX in human fetal brain sections at various developmental stages showed the highest expression in neuronal precursors in the germinal matrix of the ganglionic eminence and in the ventricular zone of the telencephalon. Expression was also observed in the hippocampus, cingulate, subventricular zone, cortical plate, caudate nucleus, and putamen. The expression pattern suggests that ARX is involved in the differentiation and maintenance of specific neuronal cell types in the human central nervous system. We also mapped the murine Arx gene to the mouse genome using a mouse/hamster radiation hybrid panel and showed that Arx and ARX are orthologues. Therefore, investigations in model vertebrates may provide insight into the role of ARX in development. The recent identification of ARX mutations in patients with various forms of mental retardation make such studies in model organisms even more compelling.
Collapse
Affiliation(s)
- R Ohira
- Department of Human Genetics, David Geffen School of Medicine at UCLA, 10833 Le Conte Avenue, Los Angeles, CA 90095-1752, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Stahl RG, Fu LJ. [Ecological risk assessment and its application]. Wei Sheng Yan Jiu 1999; 28:249-54. [PMID: 11938991] [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: 02/24/2023]
Abstract
Ecological risk assessment, closely linked to environmental toxicology, is becoming one of the most widely expanding disciplines in environmental science. A number of frameworks for ecological risk assessment have been developed by the USEPA, Environment Canada and European Commission in recent years. This review described the common elements, the process and steps of ecological risk assessment. In addition to drawing upon the recent published literature, we have developed some examples of applications based on our collective experiences in conducting ecological risk assessments.
Collapse
Affiliation(s)
- R G Stahl
- Dupont Company, Barley Mill Plaza, Wilmington, Delaware 19805, USA
| | | |
Collapse
|
47
|
Sarrif AM, Bentley KS, Fu LJ, O'Neil RM, Reynolds VL, Stahl RG. Evaluation of benomyl and carbendazim in the in vivo aneuploidy/micronucleus assay in BDF1 mouse bone marrow. Mutat Res 1994; 310:143-9. [PMID: 7523878 DOI: 10.1016/0027-5107(94)90018-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.2] [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: 01/25/2023]
Abstract
Benomyl and its active metabolite carbendazim were investigated in BDF1 mouse bone marrow to establish whether micronuclei induced by these fungicides are caused by clastogenic or aneugenic events. Micronuclei were evaluated for kinetochores using immunofluorescent antikinetochore antibodies. Kinetochore positive (K+) micronuclei are likely to arise from chromosome loss since they presumably contain intact kinetochores and are indicative of aneuploidy. Conversely, kinetochore negative (K-) micronuclei are mostly likely to contain acentric chromosome fragments arising primarily from clastogenic damage. Benomyl and carbendazim were administered as single oral doses of 0.3, 8.6 or 17.2 mmol/kg (for benomyl, equivalent to 100, 2500 or 5000 mg/kg; for carbendazim, equivalent to 66, 1646 or 3293 mg/kg). Both compounds were positive in the micronucleus test at doses of 8.6 and 17.2 mmol/kg, and an average of 82% (benomyl) and 87% (carbendazim) of the total micronucleated polychromatic erythrocytes were K+. No effects were seen with either fungicide at 0.3 mmol/kg. These results are analogous to findings with known aneugens such as vincristine but are in contrast to results with classical clastogens such as cyclophosphamide. Thus, benomyl and carbendazim induce micronuclei in mouse bone marrow cells primarily through an aneugenic mechanism.
Collapse
Affiliation(s)
- A M Sarrif
- E.I. du Pont de Nemours & Co., Haskell Laboratory for Toxicology and Industrial Medicine, Newark, DE 19714
| | | | | | | | | | | |
Collapse
|
48
|
Fu LJ. [Nursing care of tricuspid atresia children after improvised Foutan surgery]. Zhonghua Hu Li Za Zhi 1992; 27:250-1. [PMID: 1394725] [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: 12/26/2022]
|
49
|
Newman LM, Johnson EM, Giacobbe RL, Fu LJ. The in vitro activation of cyclophosphamide in the Hydra Developmental Toxicology Assay. Fundam Appl Toxicol 1990; 15:488-99. [PMID: 2258013 DOI: 10.1016/0272-0590(90)90035-i] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The proteratogen cyclophosphamide (CP) was tested in the Hydra Assay in the presence and absence of an in vitro metabolic activation package (MAP) consisting of rat hepatic microsomes (0.06 nmol P450/ml), 500 microM NADPH, and 25 microM MgCl. This metabolic system was developed through a series of interrelated biochemical and biological assays to provide maximum cytochrome P450 mixed-function monooxygenase (MFO) metabolic capacity while controlling the inherent toxicity of the hepatic preparation and the attendant cofactors. Bioactivation of CP was confirmed under standard hydra assay conditions of pH 7.0 and 20 degrees C and compared with activation at 37 degrees C. Estimation of total metabolic capacity and verification of activation were made through the appearance of alkylating metabolites both in the absence and in the presence of hydra. Chemical exposure was maintained throughout the 92 +/- 2 hr assay with periodic renewal of media (and additives) at 4, 20, 28, 42, and 66 hr of incubation. Inclusion of bioactivation increased the toxicity of CP by two orders of magnitude. The minimal affective concentration in the adult and developmental portions of the assay was decreased from 4000 to 20 micrograms CP/ml and from 1000 to 4 micrograms CP/ml, respectively. By limiting the inherent toxicity of the MFO package, it was possible to avoid pulse-type exposures and ensure that all ontogenic stages were exposed to active metabolites. The addition of metabolic activation capacity to an in vitro assay, while not essential, markedly enhances its utility and breadth of application in developmental toxicity safety evaluations.
Collapse
Affiliation(s)
- L M Newman
- Department of Anatomy, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 19107
| | | | | | | |
Collapse
|
50
|
Yan SY, Tu M, Yang HY, Mao ZG, Zhao ZY, Fu LJ, Li GS, Huang GP, Li SH, Jin GQ. Developmental incompatibility between cell nucleus and cytoplasm as revealed by nuclear transplantation experiments in teleost of different families and orders. Int J Dev Biol 1990; 34:255-66. [PMID: 2386727] [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: 12/31/2022]
Abstract
Teleosts from different families and orders were used as materials for nuclear transplantation experiments. (1) The nuclei of goldfish (Carassius auratus, family Cyprinidae, order Cypriniformes) were transplanted into the enucleated egg cytoplasm of loach (Paramisgurnus dabryanus, family Cobitidae, order Cypriniformes) and vice-versa. (2) The nuclei of Tilapia (oreochromis nilotica, order Perciformes) were transplanted into the enucleated egg cytoplasm of goldfish (Carassius auratus, order Cypriniformes). The chromosome number of the nucleus donor fish is different from that of the cytoplasmic recipient fish in each of the two combinations. In the first case, only a few early nucleo-cytoplasmic hybrid (NCH) larval fish were obtained in each combination. In second case, even though a high percentage of NCH blastulas were also obtained, the majority of them died at the same developmental stage, except a few which survived until early gastrula stage. The examination of the metaphase chromosome figures of the NCH blastulas or embryos obtained in all three combinations indicated that they were of nucleus-donor type. The developmental rates of all the NCH eggs were similar to those of cytoplasmic-recipient type. Scanning electronmicroscopy examination showed that the morphology of NCH blastula cells, which were obtained from the combination of Tilapia nucleus and goldfish cytoplasm, manifested obviously abnormal features and the cells were arrested at different stages of cell disintegration. Two-dimension polyacrylamide gel electrophoretograms of the homogenates of Tilapia, goldfish and their NCH blastula cells showed that the protein synthetic pattern of NCH blastula was similar to that of Tilapia nucleus type. The results of experiments which failed to obtain NCH adult fish in all three combinations can be explained as a result of developmental incompatibility between the donor nucleus and the enucleated recipient egg cytoplasm, which were from distantly related fish species. And the chromosome numbers of all the component fish of the three combinations which were examined in the experiment and shown to be quite different from each other in the tested fish, should not be overlooked as one of the essential factors causing the developmental incompatibility in NCH fish in this experiment.
Collapse
Affiliation(s)
- S Y Yan
- Institute of Developmental Biology, Academia Sinica, Beijing, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|