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Yu Y, He RR, Yang L, Feng YZ, Xue J, Liu Q, Zhou YF, Lei MQ, Zhang YC, Lian JP, Chen YQ. A transthyretin-like protein acts downstream of miR397 and LACCASE to regulate grain yield in rice. Plant Cell 2024:koae147. [PMID: 38735686 DOI: 10.1093/plcell/koae147] [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] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/03/2024] [Accepted: 04/12/2024] [Indexed: 05/14/2024]
Abstract
Increasing grain yield is a major goal of breeders due to the rising global demand for food. We previously reported that the miR397-LACCASE (OsLAC) module regulates brassinosteroid (BR) signaling and grain yield in rice (Oryza sativa). However, the precise roles of laccase enzymes in the BR pathway remain unclear. Here, we report that OsLAC controls grain yield by preventing the turnover of TRANSTHYRETIN-LIKE (OsTTL), a negative regulator of BR signaling. Overexpressing OsTTL decreased BR sensitivity in rice, while loss-of-function of OsTTL led to enhanced BR signaling and increased grain yield. OsLAC directly binds to OsTTL and regulates its phosphorylation-mediated turnover. The phosphorylation site Ser226 of OsTTL is essential for its ubiquitination and degradation. Overexpressing the dephosphorylation-mimic form of OsTTL (OsTTLS226A) resulted in more severe defects than did overexpressing OsTTL. These findings provide insight into the role of an ancient laccase in BR signaling and suggest that the OsLAC-OsTTL module could serve as a target for improving grain yield.
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Affiliation(s)
- Yang Yu
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, P. R. China
- Guangdong Key Laboratory of Crop Germplasm Resources Preservation and Utilization, Key Laboratory of South China Modern Biological Seed Industry, Ministry of Agriculture and Rural Affairs, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, P. R. China
| | - Rui-Rui He
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Lu Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Yan-Zhao Feng
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, P. R. China
- Guangdong Key Laboratory of Crop Germplasm Resources Preservation and Utilization, Key Laboratory of South China Modern Biological Seed Industry, Ministry of Agriculture and Rural Affairs, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, P. R. China
| | - Jiao Xue
- Guangdong Key Laboratory of Crop Germplasm Resources Preservation and Utilization, Key Laboratory of South China Modern Biological Seed Industry, Ministry of Agriculture and Rural Affairs, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, P. R. China
| | - Qing Liu
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, P. R. China
| | - Yan-Fei Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Meng-Qi Lei
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Yu-Chan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Jian-Ping Lian
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Yue-Qin Chen
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, P. R. China
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Lian JP, Yuan C, Feng YZ, Liu Q, Wang CY, Zhou YF, Huang QJ, Zhu QF, Zhang YC, Chen YQ, Yu Y. MicroRNA397 promotes rice flowering by regulating the photorespiration pathway. Plant Physiol 2024; 194:2101-2116. [PMID: 37995372 DOI: 10.1093/plphys/kiad626] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/19/2023] [Accepted: 10/29/2023] [Indexed: 11/25/2023]
Abstract
The precise timing of flowering plays a pivotal role in ensuring successful plant reproduction and seed production. This process is intricately governed by complex genetic networks that integrate internal and external signals. This study delved into the regulatory function of microRNA397 (miR397) and its target gene LACCASE-15 (OsLAC15) in modulating flowering traits in rice (Oryza sativa). Overexpression of miR397 led to earlier heading dates, decreased number of leaves on the main stem, and accelerated differentiation of the spikelet meristem. Conversely, overexpression of OsLAC15 resulted in delayed flowering and prolonged vegetative growth. Through biochemical and physiological assays, we uncovered that miR397-OsLAC15 had a profound impact on carbohydrate accumulation and photosynthetic assimilation, consequently enhancing the photosynthetic intensity in miR397-overexpressing rice plants. Notably, we identified that OsLAC15 is at least partially localized within the peroxisome organelle, where it regulates the photorespiration pathway. Moreover, we observed that a high CO2 concentration could rescue the late flowering phenotype in OsLAC15-overexpressing plants. These findings shed valuable insights into the regulatory mechanisms of miR397-OsLAC15 in rice flowering and provided potential strategies for developing crop varieties with early flowering and high-yield traits through genetic breeding.
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Affiliation(s)
- Jian-Ping Lian
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Chao Yuan
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Yan-Zhao Feng
- Guangdong Key Laboratory of Crop Germplasm Resources Preservation and Utilization, Key Laboratory of South China Modern Biological Seed Industry, Ministry of Agriculture and Rural Affairs, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, PR China
| | - Qing Liu
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, PR China
| | - Cong-Ying Wang
- Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, PR China
| | - Yan-Fei Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Qiao-Juan Huang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Qing-Feng Zhu
- Guangdong Key Laboratory of Crop Germplasm Resources Preservation and Utilization, Key Laboratory of South China Modern Biological Seed Industry, Ministry of Agriculture and Rural Affairs, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, PR China
| | - Yu-Chan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Yue-Qin Chen
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Yang Yu
- Guangdong Key Laboratory of Crop Germplasm Resources Preservation and Utilization, Key Laboratory of South China Modern Biological Seed Industry, Ministry of Agriculture and Rural Affairs, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, PR China
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Xu CC, Yin PZ, Zhang C, Zhao XT, Fang XG, Zhou YF. [Predictive value of whole brain perfusion on admission for shunt-dependent hydrocephalus fllowing aneurysmal subarachnoid hemorrhage]. Zhonghua Yi Xue Za Zhi 2024; 104:674-681. [PMID: 38418166 DOI: 10.3760/cma.j.cn112137-20230725-00085] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
Objective: To explore the value of predicting shunt-dependent hydrocephalus (SDHC) in patients with aneurysmal subarachnoid hemorrhage (aSAH) based on whole brain CT perfusion(CTP) and clinical data within 24 hours at admission. Methods: The clinical and imaging data of aSAH patients who received interventional embolization in our hospital were retrospectively collected from March 2018 to August 2022. All patients underwent one-stop whole brain CT examination within 24 hours after symptom onset, and the qualitative and quantitative CTP parameters were obtained after post-processing. Follow-up was conducted once every 2 months by consulting electronic medical records or by telephone for 6 months. According to whether SDHC occurred or not, the patients were divided into SDHC group and non-SDHC group. The differences between the two groups were compared. Logistic regression model was used to analyze and determine the predictive factors of SDHC, and the SDHC predictive model was established. The effectiveness of the predictive model was evaluated by drawing the receiver operating characteristic (ROC) curve of the subjects. Results: A total of 414 patients were included, including 132 males and 282 females, aged (59±11) years. 17.6%(73/414) patients had SDHC. There were significant differences in the occurrence of acute hydrocephalus, the World Neurosurgical League Scale (WFNS), the Hunt-Hess scale, the modified Fisher score (mFS), and the qualitative and quantitative parameters of CTP between the two groups (both P<0.001). Multivariate logistic regression analysis showed that acute hydrocephalus (OR=8.621, 95%CI: 4.237-17.542),old age (OR=1.107, 95%CI: 1.068-1.148), high mFS and high Hunt-Hess classification (OR=3.740, 95%CI: 1.352-10.342) were the risk factors of SDHC in aSAH patients, and high mean cerebral blood flow (mCBF) (OR=0.931, 95%CI: 0.885-0.980) was a protective factor of SDHC.The area under ROC curve (AUC) of the prediction model constructed by these five variables was 0.923(95%CI: 0.89-0.95), with 84.5% sensitivity and 87.7% specificity. Conclusion: The mCBF and acute hydrocephalus, age, mFS and Hunt-Hess classification within 24 hours at admission can be used to predict SDHC for aSAH patients.
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Affiliation(s)
- C C Xu
- Department of Radiology, the First Affiliated Hospital of Wannan Medical College, Wuhu 241001, China
| | - P Z Yin
- Department of Radiology, the First Affiliated Hospital of Wannan Medical College, Wuhu 241001, China
| | - C Zhang
- Department of Radiology, the First Affiliated Hospital of Wannan Medical College, Wuhu 241001, China
| | - X T Zhao
- Department of Neurosurgery, the First Affiliated Hospital of Wannan Medical College, Wuhu 241001, China
| | - X G Fang
- Department of Neurosurgery, the First Affiliated Hospital of Wannan Medical College, Wuhu 241001, China
| | - Y F Zhou
- Department of Radiology, the First Affiliated Hospital of Wannan Medical College, Wuhu 241001, China
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Peng C, Zhou YF. [Attention should be paid to the early diagnosis and treatment of juvenile adenomyosis]. Zhonghua Fu Chan Ke Za Zhi 2023; 58:485-488. [PMID: 37474320 DOI: 10.3760/cma.j.cn112141-20230206-00047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
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Lu Y, Zhou YF, Mao YT, Zhan HF, Chen H, Zhang FF, Wu JN, Li X. [The clinical characteristics of functional hypothalamic amenorrhea with hyperandrogenism]. Zhonghua Yi Xue Za Zhi 2023; 103:1049-1054. [PMID: 37032155 DOI: 10.3760/cma.j.cn112137-20220928-02042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Objective: To explore the clinical and biochemical discriminants of hyperandrogenism in functional hypothalamic amenorrhea (FHA). Methods: From January to September 2022, a total of 56 patients with FHA group in the Obstetrics and Gynecology Hospital of Fudan University outpatient clinic were included in this retrospective cross-sectional analysis. According to the clinical or biochemical features of hyperandrogenism, FHA patients can be divided into two subgroups, namely hyperandrogenic FHA and non-hyperandrogenic FHA. Explore the differences and its significances between hyperandrogenic FHA and non-hyperandrogenic FHA by comparing anthropometry, reproductive hormones, AMH, ultrasonic manifestation, the scores of eating attitude test, depression questionnaire and anxiety scale respectively and analyzing their correlations. Results: The age of 56 FHA patients was 15-32(23.36±4.90) years, and body mass index(BMI) was (18.91±2.49) kg/m2. The age of hyperandrogenic FHA and non-hyperandrogenic FHA was (21.76±4.40) and (24.05±5.00) (P=0.109) years old respectively, and BMI was (19.14±3.15 )and (18.81±2.18) kg/m2 (P=0.702). Compared to the non-hyperandrogenic FHA, the AMH (6.46 and 3.63 ng/ml, P=0.025) and PRL (278.78 and 149.46 mU/ml, P=0.002) levels were higher in hyperandrogenic FHA group. There was no significant difference between the hyperandrogenic and non-hyperandrogenic FHA group in body composition.GAD-7 (r=0.455, P=0.005) and PHQ-9 (r=0.664, P<0.001) were correlated with EAT-26 scores in non-hyperandrogenic FHA group, but no significant correlation was shown between PHQ-9 (r=0.091, P=0.766)、GAD-7 (r=0.304, P=0.313) and EAT-26 in hyperandrogenic FHA group. Conclusions: Some patients with FHA had clinical manifestations of hyperandrogenism and mildly elevated AMH and PRL, with underlying PCOS endocrine characteristics.
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Affiliation(s)
- Y Lu
- Department of Gynecologic Endocrinology and Reproductive Medicine, the Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Y F Zhou
- Department of Gynecologic Endocrinology and Reproductive Medicine, the Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Y T Mao
- Department of Women's Health, Affiliated Maternity and Child Health Care Hospital of Nantong University, Nantong 226001, China
| | - H F Zhan
- Department of Gynecology, Shanghai Jing'an Central Hospital of Fudan University, Shanghai 200040, China
| | - H Chen
- Department of Gynecologic Endocrinology and Reproductive Medicine, the Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - F F Zhang
- Department of Gynecologic Endocrinology and Reproductive Medicine, the Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - J N Wu
- Department of Gynecologic Endocrinology and Reproductive Medicine, the Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - X Li
- Department of Gynecologic Endocrinology and Reproductive Medicine, the Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
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Zhu L, Lang JH, Ren C, Zhang YL, Chen DJ, Chen L, Chen YL, Cui MH, Di W, Duan H, Hao M, Huang XH, Li PL, Mao YD, Qi HB, Shi HR, Song L, Wang YF, Xu KH, Xu XX, Xue X, Yang HX, Yao SZ, Zhang GN, Zhang HW, Zhang SL, Zhou HM, Zhou YF, Zhu WG. [The Chinese guideline for prevention of pelvic and abdominal adhesions after obstetric and gynecologic surgery (2023 edition)]. Zhonghua Fu Chan Ke Za Zhi 2023; 58:161-169. [PMID: 36935192 DOI: 10.3760/cma.j.cn112141-20220822-00523] [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: 03/21/2023]
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Zhang YC, Lei MQ, Zhou YF, Yang YW, Lian JP, Yu Y, Feng YZ, Zhou KR, He RR, He H, Zhang Z, Yang JH, Chen YQ. Author Correction: Reproductive phasiRNAs regulate reprogramming of gene expression and meiotic progression in rice. Nat Commun 2023; 14:1584. [PMID: 36949065 PMCID: PMC10033653 DOI: 10.1038/s41467-023-37355-6] [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: 03/24/2023] Open
Affiliation(s)
- Yu-Chan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China.
| | - Meng-Qi Lei
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yan-Fei Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yu-Wei Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jian-Ping Lian
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yang Yu
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yan-Zhao Feng
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Ke-Ren Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Rui-Rui He
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Huang He
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Zhi Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jian-Hua Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yue-Qin Chen
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China.
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, China.
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Huang W, Leng JH, Pei TJ, Li R, Ruan XY, Xu B, Liang XY, Wang GY, Zhou YF, Xu CJ, Zhang XM, Yao SZ, Lu MS, Ma XX, Liu CD, Xue Q, Tang L, Dai Y, Liu Y, Deng S, Guan J, Zhang W, Li L, Ren CC, He YD, Yang XY, Ouyang YW, Zhu HL, Xiao L, Chen G, Lang JH. [Fertility protection and preservation for patients with endometriosis: a Chinese consensus (2022)]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:733-739. [PMID: 36299175 DOI: 10.3760/cma.j.cn112141-20220427-00329] [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: 06/16/2023]
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9
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Zhou YF, Qian Y, Ma BK, Yang TT, Duan HY, Qi H. [Advances of tight junction damage in the corneal epithelial barrier in the pathogenesis of corneal diseases]. Zhonghua Yan Ke Za Zhi 2022; 58:848-853. [PMID: 36220662 DOI: 10.3760/cma.j.cn112142-20211019-00491] [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: 06/16/2023]
Abstract
The cornea is a transparent tissue with significant refractive and barrier functions. Corneal epithelium constitutes the first line of defense against foreign pathogens. Corneal epithelial cells interact to form a functionally selective permeability barrier. Dysfunction of this barrier leads to corneal impairment followed by a series of ocular surface diseases and even blindness. Tight junctions (TJ), located at the top of the intercellular space of corneal epithelial superficial cells, play a critical role in establishing and maintaining the barrier function. Previous studies have shown that destruction of the TJ acts as a crucial step of the occurrence and progression of multiple ocular surface diseases. Understanding the fundamental features and functions of the TJ, noticing the risk factors of TJ disruption, and clarifying the key role of TJ in the pathogenesis of various ocular surface diseases will help to better understand and treat ocular surface diseases.
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Affiliation(s)
- Y F Zhou
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
| | - Y Qian
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
| | - B K Ma
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
| | - T T Yang
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
| | - H Y Duan
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
| | - H Qi
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
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Peng C, Tian R, Li L, Zhu YK, Li SY, Ye SD, He L, Niu JP, Zhang Q, Zhou YF. [A randomized double-blinded placebo-controlled clinical trial of minodronate tablet in postmenopausal Chinese women with osteoporosis]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:346-351. [PMID: 35658325 DOI: 10.3760/cma.j.cn112141-20220220-00108] [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: 06/15/2023]
Abstract
Objective: To verify the efficacy and safety of daily oral minodronate in postmenopausal women with established osteoporosis. Methods: In this randomized, double-blinded, placebo-controlled trial, 262 postmenopausal women were enrolled. Patients were randomized to receive daily oral minodronate 1 mg with supplements of 500 mg calcium and 200 U vitamin D3 (n=130) or placebo (n=132) with daily supplements of 500 mg calcium and 200 U vitamin D3, for 48 weeks. The primary endpoint was the average bone mineral density (BMD) change in the lumbar vertebrae 48 weeks post-treatment. Secondary outcome measures was the incidence of vertebral fractures. Safety assessments included the rate of adverse events. Results: At the end of 48 weeks treatment, the average BMD change rate from baseline were: full analysis set results: (3.52±4.82)% in the minodronate group and (2.00±5.74)% in the placebo group; per-protocol set results: (3.99±5.05)% in the minodronate group and (2.07±6.20)% in the placebo group; the differences were all significant (all P<0.05). Vertebral fracture occured in 3 patients (2.3%, 3/132) in the placebo group, and 1 case (0.8%, 1/130) in the minodronate group (P>0.05). The incidence of adverse events was 71.5% (93/130) in the minodronate group and 78.0% (103/132) in the placebo group (P>0.05). Conclusion: Minodronate is effective and safe in the treatment of postmenopausal osteoporosis without severe side effects.
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Affiliation(s)
- C Peng
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - R Tian
- Department of Orthopedics, Tianjin People's Hospital, Tianjin 300121, China
| | - L Li
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Y K Zhu
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - S Y Li
- Department of Endocrinology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - S D Ye
- Department of Endocrinology, Anhui Provincial Hospital, Hefei 230001, China
| | - L He
- Department of Orthopedics, Beijing Jishuitan Hospital, Beijing 100035, China
| | - J P Niu
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Q Zhang
- Department of Endocrinology, First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Y F Zhou
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
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Zhang YC, Zhou YF, Cheng Y, Huang JH, Lian JP, Yang L, He RR, Lei MQ, Liu YW, Yuan C, Zhao WL, Xiao S, Chen YQ. Genome-wide analysis and functional annotation of chromatin-enriched noncoding RNAs in rice during somatic cell regeneration. Genome Biol 2022; 23:28. [PMID: 35045887 PMCID: PMC8772118 DOI: 10.1186/s13059-022-02608-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 01/12/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Plants have the remarkable ability to generate callus, a pluripotent cell mass that acquires competence for subsequent tissue regeneration. Global chromatin remodeling is required for this cell fate transition, but how the process is regulated is not fully understood. Chromatin-enriched noncoding RNAs (cheRNAs) are thought to play important roles in maintaining chromatin state. However, whether cheRNAs participate in somatic cell regeneration in plants has not yet been clarified. RESULTS To uncover the characteristics and functions of cheRNAs during somatic cell reprogramming in plants, we systematically investigate cheRNAs during callus induction, proliferation and regeneration in rice. We identify 2284 cheRNAs, most of which are novel long non-coding RNAs or small nucleolar RNAs. These cheRNAs, which are highly conserved across plant species, shuttle between chromatin and the nucleoplasm during somatic cell regeneration. They positively regulate the expression of neighboring genes via specific RNA motifs, which may interact with DNA motifs around cheRNA loci. Large-scale mutant analysis shows that cheRNAs are associated with plant size and seed morphology. Further detailed functional investigation of two che-lncRNAs demonstrates that their loss of function impairs cell dedifferentiation and plant regeneration, highlighting the functions of cheRNAs in regulating the expression of neighboring genes via specific motifs. These findings support cis- regulatory roles of cheRNAs in influencing a variety of rice traits. CONCLUSIONS cheRNAs are a distinct subclass of regulatory non-coding RNAs that are required for somatic cell regeneration and regulate rice traits. Targeting cheRNAs has great potential for crop trait improvement and breeding in future.
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Affiliation(s)
- Yu-Chan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
- MOE Key Laboratory of Gene Function and Regulation, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China.
| | - Yan-Fei Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Yu Cheng
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Jia-Hui Huang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Jian-Ping Lian
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Lu Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Rui-Rui He
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Meng-Qi Lei
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Yu-Wei Liu
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Chao Yuan
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Wen-Long Zhao
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Shi Xiao
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Yue-Qin Chen
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
- MOE Key Laboratory of Gene Function and Regulation, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China.
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12
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Peng C, Zhang DY, Zhou YF, Huang Y, Lu Y, Xue Q. [Clinical analysis of ureteral endometriosis complicated with hydronephrosis:92 cases series]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:836-841. [PMID: 34954961 DOI: 10.3760/cma.j.cn112141-20210803-00418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the diagnosis, treatment and prognosis of ureteral endometriosis with hydronephrosis. Methods: A retrospective study was performed of 92 cases diagnosed as ureteral endometriosis with surgery confirmed in Peking University First Hospital from January 2000 to January 2021. Results: The incidence of ureteral endometriosis was 0.9% (92/10 222), with an average age of (40.0±6.0) years. Among 92 cases, urological symptoms and pelvic pain including dysmenorrheal, periodic abdominal pain were the main forms of clinical characteristics, while 11 patients (12%, 11/92) were asymptomatic. All patients with ureteral endometriosis had hydronephrosis and hydroureter before surgery, hydronephrosis were left sided in 48 (52%, 48/92) patients, right sided in 39 (42%, 39/92) patients, both sided in 5 (5%,5/92) patients. The distal and middle sections of ureteral obstructions existed in 73 (79%, 73/92) patients and 19 (21%, 19/92) patients, respectively. Out of the 92 ureteral lesions 71 (77%, 71/92) patients were extrinsic lesions, 21 (23%, 21/92) patients presented intrinsic lesions. Of the 38 cases who took preoperative radionuclide renal dynamic imaging examination, there were 6 (16%, 6/38) cases of mildly damaged, 7 (18%, 7/38) cases of moderately dameged, 14 (37%, 14/38) cases of severely damaged, and 11 (29%, 11/38) cases of normal renal function. Laparotomy was decided in 25 (27%, 25/92) patients, and laparoscopic surgery in 67 (73%, 67/92) patients. In cases of ureteral surgery, ureterolysis, partial ureteral resection and ureterocystoneostomy, partial ureteral resection and end-to-end ureteral anastomosis and nephroureterectomy were undertaken in 52 (57%, 52/92), 20 (22%, 20/92), 12 (13%, 12/92) and 8 (9%, 8/92) patients separately. The median follow up was 108 months (range: 6 to 240 months). During the follow-up period, 68 (87%, 68/78) patients took urinary ultrasound after surgery, and 60 (88%, 60/68) cases of hydronephrosis disappeared, and 8 (12%, 8/68) cases were better than before. Conclusion: Most of the patients with ureteral endometriosis are impaired with renal function, and early surgical treatment could effectively relieve urinary obstruction and promote the recovery of renal function.
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Affiliation(s)
- C Peng
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - D Y Zhang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Y F Zhou
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Y Huang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Y Lu
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Q Xue
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
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13
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Xu Y, Dong XR, Zhang P, Wang XH, Zhou YF, Cheng GQ. [Clinical analysis of 15 patients with epileptic spasms and focal seizures as a single ictal event in neonatal period]. Zhonghua Er Ke Za Zhi 2021; 59:1055-1058. [PMID: 34856665 DOI: 10.3760/cma.j.cn112140-20210324-00252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the phenomenon of epileptic spasms (ES) and focal seizures (FS) in a single ictal event (FS-ES phenomenon) and to study the etiology, manifestations, and prognosis of this phenomenon. Methods: The data of the 15 neonates who had ES and FS in a single ictal event, according to video-electroencephalography (VEEG) recording in Department of Neonatology of Children's Hospital of Fudan University during the period of January 2018 to December 2019, was analyzed retrospectively. Results: Of the 15 neonates, 7 were male and 8 were female. Gestational age was 39 (32-42) weeks. Birth weight was 3 100 (1 825-3 850) g. The initial onset age of convulsions was 2 (1-10) days. The age of the first discovery of FS-ES phenomenon was 25 (14-32) days. The age of seizure-free was 7(1-27) months. All of the initial seizure types were FS. The FS-ES phenomenon of 15 patients started with FS. The FS-ES phenomenon manifested in 2 forms: FS followed by ES (12 cases), ES appeared during an FS without interrupting FS (2 cases). In 1 neonate the spasm occurred in both forms. The etiology included genetic factors (9 cases), intracranial infection (1 case), abnormal brain tissue structure (2 cases), and etiology was unknown in 3 cases. All the neonates had a poor prognosis except one. Conclusions: The FS-ES phenomenon in the neonatal period starts with FS. There are various etiologies. Etiologies of most patients are genetic factors. Most of the patients have a poor prognosis.
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Affiliation(s)
- Y Xu
- Department of Neurology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - X R Dong
- Molecular Genetic Diagnosis Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - P Zhang
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - X H Wang
- Department of Neurology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y F Zhou
- Department of Neurology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - G Q Cheng
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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14
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Zhou YF, Zhang YC, Sun YM, Yu Y, Lei MQ, Yang YW, Lian JP, Feng YZ, Zhang Z, Yang L, He RR, Huang JH, Cheng Y, Liu YW, Chen YQ. The parent-of-origin lncRNA MISSEN regulates rice endosperm development. Nat Commun 2021; 12:6525. [PMID: 34764271 PMCID: PMC8585977 DOI: 10.1038/s41467-021-26795-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 10/22/2021] [Indexed: 11/09/2022] Open
Abstract
The cereal endosperm is a major factor determining seed size and shape. However, the molecular mechanisms of endosperm development are not fully understood. Long noncoding RNAs (lncRNAs) function in various biological processes. Here we show a lncRNA, MISSEN, that plays an essential role in early endosperm development in rice (Oryza sativa). MISSEN is a parent-of-origin lncRNA expressed in endosperm, and negatively regulates endosperm development, leading to a prominent dent and bulge in the seed. Mechanistically, MISSEN functions through hijacking a helicase family protein (HeFP) to regulate tubulin function during endosperm nucleus division and endosperm cellularization, resulting in abnormal cytoskeletal polymerization. Finally, we revealed that the expression of MISSEN is inhibited by histone H3 lysine 27 trimethylation (H3K27me3) modification after pollination. Therefore, MISSEN is the first lncRNA identified as a regulator in endosperm development, highlighting the potential applications in rice breeding.
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Affiliation(s)
- Yan-Fei Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Yu-Chan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Yu-Meng Sun
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Yang Yu
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Meng-Qi Lei
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Yu-Wei Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Jian-Ping Lian
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Yan-Zhao Feng
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Zhi Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Lu Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Rui-Rui He
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Jia-Hui Huang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Yu Cheng
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Yu-Wei Liu
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Yue-Qin Chen
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, 510275, Guangzhou, China. .,MOE Key Laboratory of Gene Function and Regulation, Sun Yat-sen University, 510275, Guangzhou, China.
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15
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Yang CX, Zhao XH, Li YY, Zhou YF, Zhang LA, Yuan D, Xia W, Wang JM, Song JD, Lyu W, Luo YF, Jiang LF, Jiang L, Huang XC, Hu XY, Dong XJ, Cheng TY, Zhou YZ, Zhang Y, Che Y. [Incidence of unintended pregnancy within 2 years after delivery and its influencing factors in China]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:616-621. [PMID: 34547862 DOI: 10.3760/cma.j.cn112141-20210611-00316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the present situation of unintended pregnancy within two years postpartum and its influencing factors in China. Methods: Participants who delivered a live birth at 60 hospitals in 15 provinces in the eastern, central and western regions of China during July 2015 to June 2016 were interviewed by using structured questionnaire. Information on occurrence of unintended pregnancy within 2 years after delivery, postpartum contraceptive use, sexual resumption, breastfeeding, and women's socio-demographic characteristics, and so on, were collected. Life-table analysis, cluster log-rank tests and a 2-level Cox regression model were used for data analysis. Results: A total of 18 045 postpartum women were investigated. The cumulative 1- and 2-year unintended pregnancy rates after delivery were 5.3% (95%CI: 4.5%-6.1%) and 13.1% (95%CI: 11.3%-14.8%), respectively. Cox regression model analysis showed that the risk of unintended pregnancy within 2 years postpartum were increased in younger women, ethnic minorities, women with abortion history, and those who had a vaginal delivery with short lactation time and late postpartum contraceptive initiation (all P<0.01). The risk of postpartum unintended pregnancy was not associated with geographic regions and hospitals where women gave a birth (all P>0.05). Conclusions: In China, the risk of unintended pregnancy within 2 years after delivery is relatively high. Service institutions and service providers should improve the quality of postpartum family planning services, promote the use of high effect contraceptive methods, and educate women to use a method at the time of their sexual resumption or even before.
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Affiliation(s)
- C X Yang
- Department of Obstetrics, Tianjin Baodi Hospital, Tianjin 301800, China
| | - X H Zhao
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y Y Li
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y F Zhou
- Center for Maternal Health Care, Changsha Hosptial for Maternal and Child Health Care, Changsha 410007, China
| | - L A Zhang
- Department of Family Planning, Women Health Center of Shanxi, Taiyuan 030013, China
| | - D Yuan
- Department of Obstetrics and Gynecology, Tianjin Hedong District Obstetrics and Gynecology Hospital, Tianjin 300042, China
| | - W Xia
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J M Wang
- Department of Family Planning, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - J D Song
- Department of Obstetrics and Gynecology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, China
| | - W Lyu
- Department of Gynecology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
| | - Y F Luo
- Department of Reproductive Gynecology, Jilin Province Maternal and Child Health Hospital, Changchun 130051, China
| | - L F Jiang
- Research Center of Social Medicine, Henan Institute of Reproduction Health Science and Technology, Zhengzhou 450002, China
| | - L Jiang
- Research Center of Social Medicine, Henan Institute of Reproduction Health Science and Technology, Zhengzhou 450002, China
| | - X C Huang
- Department of Gynecology, Fujian Maternity and Children Health Hospital, Fuzhou 350001, China
| | - X Y Hu
- Department of Maternity Care, Shanghai Center for Women and Children's Health, Shanghai 200062, China
| | - X J Dong
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - T Y Cheng
- Department of Maternal Health Care, Maternal and Child Health Care Hospital of Urumqi, Urumqi 830000, China
| | - Y Z Zhou
- Department of Health Toxicology, School of Public Health, Zunyi Medical University, Zunyi 563006, China
| | - Y Zhang
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y Che
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
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16
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Lian JP, Yang YW, He RR, Yang L, Zhou YF, Lei MQ, Zhang Z, Huang JH, Cheng Y, Liu YW, Zhang YC, Chen YQ. Ubiquitin-dependent Argonauteprotein MEL1 degradation is essential for rice sporogenesis and phasiRNA target regulation. Plant Cell 2021; 33:2685-2700. [PMID: 34003932 PMCID: PMC8408455 DOI: 10.1093/plcell/koab138] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 05/06/2021] [Indexed: 05/25/2023]
Abstract
MEIOSIS ARRESTED AT LEPTOTENE1 (MEL1), a rice (Oryza sativa) Argonaute (AGO) protein, has been reported to function specifically at premeiotic and meiotic stages of germ cell development and is associated with a novel class of germ cell-specific small noncoding RNAs called phased small RNAs (phasiRNAs). MEL1 accumulation is temporally and spatially regulated and is eliminated after meiosis. However, the metabolism and turnover (i.e. the homeostasis) of MEL1 during germ cell development remains unknown. Here, we show that MEL1 is ubiquitinated and subsequently degraded via the proteasome pathway in vivo during late sporogenesis. Abnormal accumulation of MEL1 after meiosis leads to a semi-sterile phenotype. We identified a monocot-specific E3 ligase, XBOS36, a CULLIN RING-box protein, that is responsible for the degradation of MEL1. Ubiquitination at four K residues at the N terminus of MEL1 by XBOS36 induces its degradation. Importantly, inhibition of MEL1 degradation either by XBOS36 knockdown or by MEL1 overexpression prevents the formation of pollen at the microspore stage. Further mechanistic analysis showed that disrupting MEL1 homeostasis in germ cells leads to off-target cleavage of phasiRNA target genes. Our findings thus provide insight into the communication between a monocot-specific E3 ligase and an AGO protein during plant reproductive development.
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Affiliation(s)
| | | | - Rui-Rui He
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Lu Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Yan-Fei Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Meng-Qi Lei
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Zhi Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Jia-Hui Huang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Yu Cheng
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, PR China
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17
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Dong RQ, Deng DD, Chen T, Zhou YF, Yang JH, Xia L. [Ventricular tachycardia risk stratification of a cardiomyopathy patient using computational cardiac modeling and stimulation technology: a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:825-827. [PMID: 34404196 DOI: 10.3760/cma.j.cn112148-20201115-00911] [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: 06/13/2023]
Affiliation(s)
- R Q Dong
- Department of Cardiology, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215100, China
| | - D D Deng
- School of Biomedical Engineering, Dalian University of Technology, Dalian 116024, China
| | - T Chen
- Department of Cardiology, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215100, China
| | - Y F Zhou
- Department of Cardiology, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215100, China
| | - J H Yang
- Department of Cardiology, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215100, China
| | - L Xia
- Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
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18
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Zhou YF, Pu LF, Lin QC, Yuan KM, Li J. [Analysis of factors related to one-year mortality in elderly patients following hip fracture surgery]. Zhonghua Yi Xue Za Zhi 2021; 101:1269-1274. [PMID: 34865397 DOI: 10.3760/cma.j.cn112137-20200908-02601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the related factors that affect the one-year mortality in elderly patients following hip fracture surgery. Methods: The clinical data of the elderly patients who needed a surgery for hip fracture in the Second Affiliated Hospital of Wenzhou Medical University from January 2017 to April 2018 were retrospectively analyzed. According to the inclusion criteria of the study, 489 cases were included. Then the information of patients including age, sex, Charlson comorbidity index, type of fracture, Braden score at admission, American Society of Anesthesiologists (ASA) score, length of hospital stay, type of anesthesia, whole blood cells analysis were collected. Univariate and multivariate Cox regression analyses were conducted to investigate the factors related to one-year mortality of patients. Results: After excluding 39 patients, 450 patients were finally included. Patients in this cohort study had a mortality rate of 3.33% (15/450) at 1 month, 7.78% (35/450) at half a year, and 10.89% (49/450) at 1 year after surgery. Univariate analysis showed that age, sex, ASA score, type of fracture, Charlson comorbidity index, Braden score at admission, type of analgesia, preoperative hemoglobin concentration, preoperative albumin concentration, postoperative delirium of high activity correlated with one-year mortality after surgery. Further, multivariate Cox regression analysis revealed that age>80 years old (HR=2.32, 95%CI: 1.11-4.85, P=0.025), Charlson comorbidity index ≥ 3 (HR=3.24, 95%CI:1.75-6.03, P<0.001), Braden score at admission ≤16 (HR=1.93, 95%CI:1.03-3.57, P=0.040) and postoperative delirium of high activity (HR=2.49, 95%CI:1.16-5.35, P=0.019) were risk factors for one-year mortality. Conclusions: The current study indicates that one-year mortality rate of elderly patients following hip fracture surgery is 10.89%. Meanwhile, age>80 years, Charlson comorbidity index ≥ 3, Braden score at admission ≤ 16, postoperative delirium of high activity are risk factors for one-year mortality.
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Affiliation(s)
- Y F Zhou
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - L F Pu
- The People's Hospital of Shaoxing, Shaoxing 312000, China
| | - Q C Lin
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - K M Yuan
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - J Li
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
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19
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Wu M, Shen CE, Lin QF, Zhong JY, Zhou YF, Liu BC, Xu JH, Zhang ZQ, Li P. Sterols and triterpenoids from Ganoderma lucidum and their reversal activities of tumor multidrug resistance. Nat Prod Res 2021; 36:1396-1399. [PMID: 33691545 DOI: 10.1080/14786419.2021.1878514] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 10/21/2022]
Abstract
Two sterols and seven triterpenoids were isolated and identified from Ganoderma lucidum by silica gel column chromatography, preparative high-performance liquid chromatography and spectra analysis. Then, the multidrug resistance reversal activities of these compounds were assessed using MTT assay. Among these compounds, ganoderol B (3), ganoderone A (4), ganodermanondiol (6) and ganoderiol F (8) were shown to reverse the resistance of human oral epidermoid carcinoma cell line KBv200 to doxorubicin, and the reversal folds were 6.59, 4.70, 4.01 and 7.09, respectively. Ganoderiol F could increase the intracellular accumulation of doxorubicin in KBv200 cells through inhibiting P-glycoprotein transport function. Further mechanistic investigation found that ganoderiol F did not alter P-glycoprotein expression. In conclusion, ganoderiol F has potent effect in reversing P-glycoprotein mediated tumor multidrug resistance. Potential reversal agents against multidrug resistance in tumor may be found in triterpenoids from Ganoderma lucidum.
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Affiliation(s)
- Min Wu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China
| | - Cui-E Shen
- Department of Pharmacy, Shanghai Skin Disease Hospital, Shanghai, China
| | - Qiao-Fa Lin
- School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Jin-Yi Zhong
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China
| | - Yan-Fei Zhou
- Fujian Xianzhilou Biological Science and Technology Co. Ltd, Fuzhou, China
| | - Ben-Chen Liu
- Fujian Xianzhilou Biological Science and Technology Co. Ltd, Fuzhou, China
| | - Jian-Hua Xu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China
| | - Zhi-Qiang Zhang
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China
| | - Peng Li
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China
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20
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Zhang YC, Lei MQ, Zhou YF, Yang YW, Lian JP, Yu Y, Feng YZ, Zhou KR, He RR, He H, Zhang Z, Yang JH, Chen YQ. Reproductive phasiRNAs regulate reprogramming of gene expression and meiotic progression in rice. Nat Commun 2020; 11:6031. [PMID: 33247135 PMCID: PMC7695705 DOI: 10.1038/s41467-020-19922-3] [Citation(s) in RCA: 44] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 11/03/2020] [Indexed: 12/11/2022] Open
Abstract
Plant spermatogenesis is a complex process that directly affects crop breeding. A rapid change in gene abundance occurs at early meiosis prophase, when gene regulation is selective. However, how these genes are regulated remains unknown. Here, we show that rice reproductive phasiRNAs are essential for the elimination of a specific set of RNAs during meiotic prophase I. These phasiRNAs cleave target mRNAs in a regulatory manner such that one phasiRNA can target more than one gene, and/or a single gene can be targeted by more than one phasiRNA to efficiently silence target genes. Our investigation of phasiRNA-knockdown and PHAS-edited transgenic plants demonstrates that phasiRNAs and their nucleotide variations are required for meiosis progression and fertility. This study highlights the importance of reproductive phasiRNAs for the reprogramming of gene expression during meiotic progression and establishes a basis for future studies on the roles of phasiRNAs with a goal of crop improvement.
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Affiliation(s)
- Yu-Chan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China.
| | - Meng-Qi Lei
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yan-Fei Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yu-Wei Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jian-Ping Lian
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yang Yu
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yan-Zhao Feng
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Ke-Ren Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Rui-Rui He
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Huang He
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Zhi Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jian-Hua Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yue-Qin Chen
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, P. R. China.
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, China.
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21
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Wang QS, Zhou YF, Wang CH, Xia Y, Li J, Yuan KM. [Influence of fasting duration on blood volume status of pediatric patients evaluated by ultrasonic technique]. Zhonghua Yi Xue Za Zhi 2020; 100:3425-3430. [PMID: 33238673 DOI: 10.3760/cma.j.cn112137-20200521-01608] [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 evaluate the influence of preoperative fasting duration on blood volume status of pediatric patients during induction based on ultrasonic technique. Methods: One hundred and ten pediatric patients, scheduled for elective operation in the Second Affiliated Hospital & Yuying Children's Hospital, were recruited during January and October in 2018. After sedation by inhalation of sevoflurane, the maximum (expiratory) and minimum (inspiratory) diameter of inferior vena cava (IVC(max), IVC(min)) and aorta velocity-time integral (VTI) in apical five-chamber cardiac view were measured with an ultrasound machine. Respiratory variabilities of these parameters were further calculated. Furthermore, passive leg raising (PLR) test was performed and above measurements/calculations were repeated. The correlation between the duration of fasting and IVC respiratory variations index (IVC(RVI)) or aortic VTI variability (ΔVTI) was then analyzed. Results: Before PLR, IVC(max), IVC(min) and IVC(RVI) were (0.78±0.19), (0.43±0.15) cm and 0.45±0.12, respectively. After PLR, IVC(max) and IVC(min) increased to (0.94±0.20), (0.55±0.18) cm, while IVC(RVI) decreased to 0.42±0.13, the differences were statistically significant (t=15.66, 10.85, 3.14, all P<0.05). However, IVC(max), IVC(min) and IVC(RVI) were not significantly correlated with the duration of fasting analyzed by linear regression (before PLR: r=0.052, 0.163, 0.171; after PLR, r=0.062, 0.169, 0.165, all P>0.05). Before PLR, expiratory aortic VTI (VTI(max)), inspiratory aortic VTI (VTI(min)) and ΔVTI were 21±5, 17±4 and 17±8, respectively. After PLR, the VTI(max) and VTI(min) significantly increased to 23±5 and 19±4 (t=13.60, 10.43, all P<0.05), but ΔVTI was not changed significantly, which was 17±8(t=0.34, P>0.05). Linear regression analysis showed that VTI(max), VTI(min) and ΔVTI were not significantly correlated with the duration of fasting (before PLR: r=0.111, 0.100, 0.047; after PLR: r=0.003, 0.033, 0.073, all P>0.05). Further multiple linear regression analysis indicated that, age and body weight were independent factors influencing IVC(RVI) and ΔVTI before and after PLR (IVC(RVI): β=-0.441, 0.515, -0.451, 0.507; ΔVTI: β=-0.442, 0.545, -2.422, 2.850; all P<0.05). However, the duration of fasting was not correlated with IVC(RVI) and ΔVTI after adjusting the age and weight (IVC(RVI): β=0.177, 0.160; ΔVTI: β=0.037, 0.054; all P>0.05). Conclusion: Age and weight, but not preoperative fasting duration, are correlated with respiratory variabilities of inferior vena cava diameter and aortic VTI in pediatric patients.
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Affiliation(s)
- Q S Wang
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Y F Zhou
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - C H Wang
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Y Xia
- Department of Anesthesiology, Zhoushan Women and Children Hospital, Zhoushan 330902, China
| | - J Li
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - K M Yuan
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
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22
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Zheng YM, Peng C, Lu Y, Deng T, Li RR, Zhou YF. [Incidence of deeply infiltrating endometriosis among 240 cases of pelvic endometriosis and analysis of its clinical and pathological characteristics]. Zhonghua Fu Chan Ke Za Zhi 2020; 55:384-389. [PMID: 32842244 DOI: 10.3760/cma.j.cn112141-20191202-00654] [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 evaluate the incidence of deeply infiltrating endometriosis (DIE) among patients of pelvic endometriosis confirmed by pathology and to make analysis of its clinical and pathological characteristics. Methods: From January 1, 2018 to December 31, 2018, clinical data of 240 cases of pelvic endometriosis diagnosed by laparoscopy and pathology hospitalized in Peking University First Hospital were analyzed retrospectively for the characteristics of symptoms, pelvic examination and anatomic distribution of endometriosis foci. Results: (1) Among 240 cases of pelvic endometriosis, 94 were diagnosed with DIE with an incidence of 39.2% (94/240); of them the diagnosis were made preoperatively in 44 cases (46.8%, 44/94). (2) Compared with those without DIE, patients with DIE had higher rates of secondary dysmenorrhea [53.2% (50/94) versus 38.4% (56/146), P=0.033], anal pain [43.6% (41/94) versus 28.1% (41/146), P=0.013], dyspareunea [39.4% (37/94) versus 18.5% (27/146), P=0.001] and frequent bowel movement [33.0% (31/94) versus 15.8%(23/146), P=0.002]. (3) Patients with DIE had higher rates of bad movement of uterus [21.3% (20/94) versus 6.8% (10/146), P=0.001], painful nodularity on uterosacral ligaments [26.6% (25/94) versus 6.2% (9/146), P<0.01], painful nodularity of posterior fornix [19.1% (18/94) versus 4.8% (7/146), P<0.01], blue nodule in vaginal wall [6.4% (6/94) versus 0 (0/146), P=0.003] by pelvic examination compared with those without DIE. (4) Ninety-four patients with DIE had a total of 162 nodules, of those 88 (54.3%, 88/162) located in uterosacral ligaments, 14 (8.6%, 14/162) in the rectum, 7 (4.3%, 7/162) in vaginal wall, 6 (3.7%, 6/162) in ureter, 4 in bladder (2.5%, 4/162), 2 (1.2%, 2/162) in Douglas pouch. Forty-three DIE patients (45.7%, 43/94) had more than one nodules. Patients with DIE had concomitant ovarian endometriosis in 69 cases (73.4%, 69/94), with a total of 103 endometrial cysts. (5) Patients with DIE had a higher rate of obliterated Douglas pouch [76.6% (72/94) versus 19.2% (28/146), P<0.01]. Conclusions: More than one third of patients with pelvic endometriosis have concomitant DIE with a lower rate of preoperative diagnosis. Pelvic pains, bad movement of uterus and painful nodulirity around cervix suggest the presence of DIE.
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Affiliation(s)
- Y M Zheng
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, ChinaZheng Yumei is working on the Department of Obstetrics and Gynecology, Qian Xi Nan People's Hospital, Xingyi 562400, China
| | - C Peng
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, ChinaZheng Yumei is working on the Department of Obstetrics and Gynecology, Qian Xi Nan People's Hospital, Xingyi 562400, China
| | - Y Lu
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, ChinaZheng Yumei is working on the Department of Obstetrics and Gynecology, Qian Xi Nan People's Hospital, Xingyi 562400, China
| | - T Deng
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, ChinaZheng Yumei is working on the Department of Obstetrics and Gynecology, Qian Xi Nan People's Hospital, Xingyi 562400, China
| | - R R Li
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, ChinaZheng Yumei is working on the Department of Obstetrics and Gynecology, Qian Xi Nan People's Hospital, Xingyi 562400, China
| | - Y F Zhou
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, ChinaZheng Yumei is working on the Department of Obstetrics and Gynecology, Qian Xi Nan People's Hospital, Xingyi 562400, China
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23
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Zhou YF, Luo JY, Quan QH, Li YM, Jiang H, Fu K. [Analysis of incidence and risk factors of neonatal ventilator associated pneumonia in a hospital in Hunan Province, 2016-2018]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:822-827. [PMID: 32842309 DOI: 10.3760/cma.j.cn112150-20200326-00438] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To investigate the incidence and risk factors of ventilator-associated pneumonia (VAP) in neonatal intensive care unit (NICU), and to provide evidence for the prevention and control of VAP. Methods: A total of 1 872 neonates, who were admitted into NICU of Hunan Provincial Maternal and Child Health Hospital and subjected to mechanical ventilation from October 2016 to June 2018, were enrolled in the study. The neonates who met the diagnostic criteria of VAP were selected as the case group, and those who were treated with ventilator for 48 hours at the same time were regarded as the control group. Multivariate logistic regression model was used to analyze the related factors of VAP. Results: Of the 1 872 neonates who underwent the mechanical ventilation, the VAP occurred in 160 cases with the incidence rate of 8.5% (160 cases). The 227 specimens were collected. Gram-positive bacteria (n=116, 51.1%) were the main pathogens. The main pathogens were Staphylococcus epidermidis, Enterococcus faecalis, Acinetobacter baumannii. By Chi-square test, birth weight, birth age, Apgar score, duration of ventilator, and whether newborn mothers with pregnancy hypertension were influencing factors. The result of logistic regression analysis showed that compared with no pregnancy included hypertension, the first aid measure at birth was initial resuscitation, and the MV time ≤ 5 days, the risk factors of ventilator-associated pneumonia in neonates included: their mothers with hypertensive disorders complicating pregnancy, using of tracheal intubation and ventilator time more than 5 days. Conclusion: The incidence of VAP in neonates receiving continuous MV therapy in neonatal intensive care unit is higher. Gram-positive bacteria are the main pathogens. VAP in neonates is related to whether newborn mothers with pregnancy hypertension, MV duration and tracheal intubation.
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Affiliation(s)
- Y F Zhou
- Xiangya School of Public Health, Central South University, Changsha 410078, China
| | - J Y Luo
- Xiangya School of Public Health, Central South University, Changsha 410078, China
| | - Q H Quan
- Department of Pediatrics, Hunan Provincial Maternal and Child Health Hospital, Changsha 410078, China
| | - Y M Li
- Xiangya School of Public Health, Central South University, Changsha 410078, China
| | - H Jiang
- Department of Pediatrics, Hunan Provincial Maternal and Child Health Hospital, Changsha 410078, China
| | - K Fu
- Department of Pediatrics, Hunan Provincial Maternal and Child Health Hospital, Changsha 410078, China
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Qiu W, Luo WJ, Zhou YF. [Rerecognition of myelin oligodendrocyte glycoprotein antibody associated disorders]. Zhonghua Yi Xue Za Zhi 2020; 100:321-323. [PMID: 32074772 DOI: 10.3760/cma.j.issn.0376-2491.2020.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- W Qiu
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - W J Luo
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Y F Zhou
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
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25
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Feng YZ, Yu Y, Zhou YF, Yang YW, Lei MQ, Lian JP, He H, Zhang YC, Huang W, Chen YQ. A Natural Variant of miR397 Mediates a Feedback Loop in Circadian Rhythm. Plant Physiol 2020; 182:204-214. [PMID: 31694901 PMCID: PMC6945863 DOI: 10.1104/pp.19.00710] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 10/19/2019] [Indexed: 05/16/2023]
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs of ∼21 nt in length, which have regulatory roles in many biological processes. In animals, proper functioning of the circadian clock, which is closely linked to the fitness of almost all living organisms, is regulated by miRNAs. However, to date, there have been no reports of the roles of miRNA in regulation of the plant circadian rhythm. Here, we report a natural variant of miR397 that lengthens the circadian period and controls flowering time in Arabidopsis (Arabidopsis thaliana). Highly conserved among angiosperms, the miRNA miR397 has two members in Arabidopsis: miR397a and miR397b. However, only miR397b significantly delayed flowering. Our results suggest that miR397b controls flowering by targeting CASEIN KINASE II SUBUNIT BETA3 (CKB3), in turn modulating the circadian period of CIRCADIAN CLOCK ASSOCIATED1 (CCA1). We further demonstrated that CCA1 directly bound to the promoter of MIR397B and suppressed its expression, forming a miR397b-CKB3-CCA1 circadian regulation feedback circuit. Evolutionary analysis revealed that miR397b is a newly evolved genetic variant in Arabidopsis, and the miR397b targeting mode may have a role in enhancing plant fitness. Our results provide evidence for miRNA-mediated circadian regulation in plants and suggest the existence of a feedback loop to manipulate plant flowering through the regulation of circadian rhythm.
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Affiliation(s)
- Yan-Zhao Feng
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Yang Yu
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Yan-Fei Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Yu-Wei Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Meng-Qi Lei
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Jian-Ping Lian
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Huang He
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Yu-Chan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Wei Huang
- College of Life Sciences, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Yue-Qin Chen
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
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Zhang YJ, Yao PL, Zhou YF, Qiu T, Wang J, Wang XH, Zhou SZ, Wu BB, Wang Y. [WAC gene pathogenic variation cause DeSanto-Shinawi syndrome with electrical status epilepticus during sleep]. Zhonghua Er Ke Za Zhi 2019; 57:802-804. [PMID: 31594069 DOI: 10.3760/cma.j.issn.0578-1310.2019.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y J Zhang
- Department of Neurology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - P L Yao
- Department of Neurology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Y F Zhou
- Department of Neurology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - T Qiu
- Department of Neurology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - J Wang
- Department of Neurology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - X H Wang
- Department of Neurology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - S Z Zhou
- Department of Neurology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - B B Wu
- Molecular Genetic Diagnosis Center, Shanghai Key Lab of Birth Defects, Pediatrics Research Institute, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Y Wang
- Department of Neurology, Children's Hospital of Fudan University, Shanghai 201102, China
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Lang JH, Leng JH, Deng S, Chen R, Chen XJ, Feng LM, Gu XY, Jin L, Li J, Wu SC, Yang X, Zhou YF. [Chinese expert panel consensus recommendations on the clinical application of levonorgestrel-releasing intrauterine system]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:815-825. [PMID: 31874471 DOI: 10.3760/cma.j.issn.0529-567x.2019.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
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28
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Song H, Huang Y, Peng Q, Xue C, Zhou YF. [Effects of parthenolide on estradiol-synthesizing enzyme, ER isoforms and VEGF in human endometriotic stromal cells]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:464-469. [PMID: 31365959 DOI: 10.3760/cma.j.issn.0529-567x.2019.07.006] [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 evaluate the effects of parthenolide on estradiol-synthesizing enzyme, steroidogenic acute regulatory protein (StAR), and ER isoforms,VEGF in human endometriotic stromal cells. Methods: Primary endometriotic stromal cells were treated with different concentrations (1, 5, 10 and 20 μmol/L) of parthenolide. The mRNA of StAR, ER isoforms (ERα and ERβ), PR, vascular endothelial growth factor (VEGF), interleukin-6 (IL-6), tumour necrosis factor-α (TNFα), tumour necrosis factor receptor (TNFR) 1, TNFR2 were measured by real-time PCR. The levels of estradiol and progesterone in the cell supernatant were measured by ELISA. Results: Different concentrations of parthenolide could up-regulate the mRNA of StAR in primary endometriotic stromal cells (F=5.722, P<0.05); the mRNA of StAR in the group of 20 μmol/L was significantly higher than that of the control group [2.6±0.3 versus 1.0, P<0.01]. Different concentrations of parthenolide could down-regulate the mRNA of ERα (F=6.921, P<0.01); the mRNA of ERα in the group of 20 μmol/L and 10 μmol/L were significantly lower than those of the control group [0.2±0.3 versus 0.3±0.3 versus 1.0, all P<0.05]. Different concentrations of parthenolide could down-regulate the ratios of ERα/ERβ mRNA levels (F=4.209, P<0.05). Different concentrations of parthenolide could up-regulate the mRNA of VEGF and TNFR1 (F=10.964, P<0.01; F=7.286, P<0.01). There were no statiscal significances with different concentrations of parthenolide on the mRNA of ERβ, PR, IL-6, TNFα and TNFR2, and the levels of estradiol and progesterone in the cell supernatant (all P>0.05). Conclusions: Parthenolide may regulate the expression of estradiol-synthesizing enzyme, ER isoforms and angiogenesis in endometriotic stromal cells. Parthenolide may promote the development of endometriosis.
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Affiliation(s)
- H Song
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
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Zhou YF, Wang ZL, Zheng HZ, Zhang HW, Yang XK. [Application of modified Dix-Hallpike maneuver in the diagnosis of posterior semicircular canal benign paroxysmal positional vertigo]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:512-514. [PMID: 31163524 DOI: 10.13201/j.issn.1001-1781.2019.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the application of modified Dix-Hallpike maneuver in the diagnosis of posterior semicircular canal benign paroxysmal positional vertigo. Method:The modified Dix-Hallpike maneuver, supine roll maneuver and classical Dix-Hallpike maneuver were performed respectively. The sensitivity and specificity of modified and classical Dix-Hallpike maneuver in the diagnosis of posterior semicircular canal BPPV was compared. Result:Fifty-five posterior semicircular canal BPPV patients showed both modified and classical Dix-Hallpike maneuver positive result, including 12 cases of rotational nystagmus induced by ipsilateral supine roll maneuver. Conclusion:Modified Dix-Hallpike maneuver and classical Dix-Hallpike maneuver have the same effect on the diagnosis of posterior semicircular canal BPPV, but the former is easy to the operation, nystagmus observation and result judgment, and is conducive to the promotion of use..
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Affiliation(s)
- Y F Zhou
- Department of Otolaryngology, Wenzhou Third Clinical Institute of Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou, 325000, China
| | - Z L Wang
- Department of Otolaryngology, Wenzhou Third Clinical Institute of Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou, 325000, China
| | - H Z Zheng
- Department of Otolaryngology, Wenzhou Third Clinical Institute of Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou, 325000, China
| | - H W Zhang
- Department of Otolaryngology, Wenzhou Third Clinical Institute of Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou, 325000, China
| | - X K Yang
- Department of Neurology, Wenzhou Third Clinical Institute of Wenzhou Medical University, Wenzhou People's Hospital
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Huang Y, Zeng C, Wu PL, Zhou Y, Peng C, Xue Q, Zhou YF. [Vascular endothelial growth factor is up-regulated by leukemia inhibitory factor and interleukin-6 in human endometriotic stromal cells]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:324-329. [PMID: 31154714 DOI: 10.3760/cma.j.issn.0529-567x.2019.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the expression of leukemia inhibitory factor (LIF), interleukin-6 (IL-6) and vascular endothelial growth factor (VEGF) in tissue and fluid samples from patients with endometriosis, and investigate whether LIF and IL-6 regulate VEGF in human endometriotic stromal cells (ESC). Methods: The levels of VEGF, LIF, IL-6 in serum, peritoneal fluid of patients with and without endometriosis were measured by ELISA. The mRNA of these three factors in the ectopic and eutopic endometrial tissue and stromal cells were measured by real-time PCR. ESC derived from ovarian endometriomas were cultured using the method of primary cell culture with LIF and IL-6, and the level of VEGF mRNA and protein were measured by the method of real-time PCR and ELISA respectively. Results: VEGF and IL-6 concentration were 1.2 and 1.3 times higher in the serum of patients with endometriosis than in the control group [(94±19) versus (78±17) ng/L; (45±14) versus (35±9) ng/L; all P<0.05]. VEGF and IL-6 concentration were 1.2 and 1.4 times higher in the peritoneal fluid of patients with endometriosis than in the control group [(110±25) versus (91±21) ng/L; (69±20) versus (49±15) ng/L; all P<0.05]. VEGF and IL-6 concentrations in peritoneal fluid of patients with endometriosis were 1.2 and 1.5 times higher than in serum (all P<0.01). VEGF, LIF and IL-6 mRNA expression were 2.2, 8.6, 44.7 times higher in ESC compared with the matching eutopic endometrial stromal cells (all P<0.01). LIF and IL-6 mRNA were 2.0 and 64.8 times higher in ectopic endometrial tissue than the matching eutopic endometrial tissue (all P<0.05).ESC cultured with LIF, IL-6 and LIF+IL-6 induce VEGF protein secretion [(106±18), (124±30), (140±27) ng/L] by 1.3, 1.5 and 1.7 times (all P<0.05). Conclusion: Overexpression of LIF and IL-6 may synergistically contribute to upregulation of VEGF in ESC and promote development of endometriosis.
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Affiliation(s)
- Y Huang
- Department of Obstetric and Gynecology, Peking University First Hospital, Beijing 100034, China
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Zhang F, Zhang YC, Liao JY, Yu Y, Zhou YF, Feng YZ, Yang YW, Lei MQ, Bai M, Wu H, Chen YQ. The subunit of RNA N6-methyladenosine methyltransferase OsFIP regulates early degeneration of microspores in rice. PLoS Genet 2019; 15:e1008120. [PMID: 31116744 PMCID: PMC6548400 DOI: 10.1371/journal.pgen.1008120] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [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: 09/07/2018] [Revised: 06/04/2019] [Accepted: 04/02/2019] [Indexed: 11/21/2022] Open
Abstract
N6-Methyladenosine (m6A) RNA methylation plays important roles during development in different species. However, knowledge of m6A RNA methylation in monocots remains limited. In this study, we reported that OsFIP and OsMTA2 are the components of m6A RNA methyltransferase complex in rice and uncovered a previously unknown function of m6A RNA methylation in regulation of plant sporogenesis. Importantly, OsFIP is essential for rice male gametogenesis. Knocking out of OsFIP results in early degeneration of microspores at the vacuolated pollen stage and simultaneously causes abnormal meiosis in prophase I. We further analyzed the profile of rice m6A modification during sporogenesis in both WT and OsFIP loss-of-function plants, and identified a rice panicle specific m6A modification motif “UGWAMH”. Interestingly, we found that OsFIP directly mediates the m6A methylation of a set of threonine protease and NTPase mRNAs and is essential for their expression and/or splicing, which in turn regulates the progress of sporogenesis. Our findings revealed for the first time that OsFIP plays an indispensable role in plant early sporogenesis. This study also provides evidence for the different functions of the m6A RNA methyltransferase complex between rice and Arabidopsis. N6-Methyladenosine (m6A) is the most abundant internal modification of eukaryotic mRNA, and m6A mRNA methylation affects almost every stage of mRNA metabolism. However, the components of the m6A methyltransferase complex and their functions in monocots are completely unknown. In this study, we identified the components of the m6A RNA methyltransferase complex in rice, and uncovered a hitherto unknown function of m6A RNA methylation in regulating early microspore apoptosis. We also systematically analyzed the characteristics of m6A modification during sporogenesis for the first time, and revealed the sporogenesis stage-specific distribution of m6A peaks along genes and the specific modification motif in rice, which are different from that of other species and other developmental stages. The target genes of m6A methyltransferase complex member OsFIP were also identified in this study. Given the important roles of posttranscriptional mRNA regulation in gene expression and sporogenesis in plants, the findings of this study should stimulate more studies exploring the role of plant m6A methyltransferase and other components.
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Affiliation(s)
- Fan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Yu-Chan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, P. R. China
- * E-mail: (YCZ); (YQC)
| | - Jian-You Liao
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yang Yu
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Yan-Fei Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Yan-Zhao Feng
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Yu-Wei Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Meng-Qi Lei
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Mei Bai
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, P. R. China
| | - Hong Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, P. R. China
| | - Yue-Qin Chen
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, P. R. China
- * E-mail: (YCZ); (YQC)
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Peng C, Su YY, Lu Y, Zhou YF. [Measurement of uterine volume in patients with endometriosis and its clinical significance]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:245-248. [PMID: 31006190 DOI: 10.3760/cma.j.issn.0529-567x.2019.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To measure the uterine volume by ultrasonic imaging in nullipara patients with endometriosis and analyze its clinical significance. Methods: From July 1st, 2016 to August 1st, 2017, 107 cases of nullipara patients with endometriosis hospitalized in Peking University First Hospital were selected as endometriosis group. Among 107 cases, 59 cases were in proliferative phase of menstrual cycle, 48 cases were in secretory phase; and 10 cases had an abortion history.Totally 101 cases of patients without endometriosis operated for other benign disease during the same period were chosen as the control group. All patients underwent laparoscopic surgery, and the diagnosis was confirmed by pathology. The uterine size was measured by transvaginal or transrectal color Doppler ultrasound, and the uterine volume was calculated according to the known formula. Results: The uterine volume of the endometriosis group [(69±26) cm(3)] was larger than that of the control group [(54±18) cm(3), P<0.01]. In the endometriosis group, the uterine volume of patients with pregnant history [(78±34) cm(3)] was larger than that of patients without pregnant history [(68±25) cm(3)]. The endometrial thickness in endometriosis group was higher than that of the control group [(9.1±3.5) versus (7.8±2.9) mm, P<0.05], and positively correlated with the uterine volume (r=0.39, P<0.05). The hemoglobin in endometriosis group was lower than that in the control group [(124±12) versus (131±10) g/L, P<0.01], and was negatively correlated with the uterine volume in the two groups (r(endometriosis)=-0.12, r(control)=-0.21; both P<0.05).The uterine volume of dysmenorrhea patients in the endometriosis group [(73±28) cm(3)] was greater than that of patients without dysmenorrhea [(62±19) cm(3), P<0.01]; both uterine volumes of patients with and without dysmenorrhea in endometriosis group were larger than those of patients with or without dysmenorrhea in the control group (P<0.05). The degree of dysmenorrhea in endometriosis group was positively correlated with the uterine volume (r=0.20, P=0.042). The uterine volume of stage Ⅳendometriosis patients [(79±30) cm(3)] was greater than that of stage Ⅲ patients in endometriosis group [(58±14) cm(3), P<0.01]. Conclusion: Patients with endometriosis are of increased uterine volume, which may be related to dysmenorrhea, menorrhagia and infertility.
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Affiliation(s)
- C Peng
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Y Y Su
- Department of Obstetrics and Gynecology, Shunyi Women's and Children's Hospital, Beijing 101300, China
| | - Y Lu
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Y F Zhou
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
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Wang SY, Xue Q, Zhou YF, Yin L. [Effects of metformin on the expression of estrogen synthetase and ER mRNA in uterine leiomyoma tissues]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:249-254. [PMID: 31006191 DOI: 10.3760/cma.j.issn.0529-567x.2019.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To elucidate whether metformin could regulate the mRNA expression level of estrogen synthetase and ER in human uterine leiomyoma tissues. Methods: (1) Seventeen pairs of uterine leiomyoma tissues and adjacent myometrium (>2 cm) were collected from patients underwent hysterectomy in Peking University First Hospital between December 2016 and January 2017. Real-time PCR was used to measure the mRNA expression level of estrogen synthetase [including cytochrome P450 cholesterol side chain cleavage enzyme (P450scc), cytochrome P450 17α-hydroxylase (P450c17), 3-beta-hydroxysteroid dehydrogenase type 2 (3β-HSD-2), 17-beta-hydroxysteroid dehydrogenase type 1 (17β-HSD-1) and aromatase cytochrome P450 (P450arom)] and ER (including ERα and ERβ) in the uterine leiomyoma tissues and adjacent myometrium. (2) Uterine leiomyoma cells derived from uterine leiomyoma tissues were identified by immunocytochemistry method and cultured to the third generation. The treatment groups were cultured with different concentrations of metformin (10, 50 and 100 μmol/L) for 48 hours, and the control group was cultured with deionized water for 48 hours. The mRNA expression level of estrogen synthetase and estrogen receptor subtypes were measured by real-time PCR. Results: (1) P450scc, P450c17, 3β-HSD-2, 17β-HSD-1, P450arom mRNA median expression levels were 112, 4, 13, 42 and 194 in the uterine leiomyoma tissues, and were respectively 114, 5, 11, 32 and 6 in the myometrium. Compared to those of the myometrium, 3β-HSD-2 and P450arom mRNA expression levels in the uterine leiomyoma tissue were significantly higher (P<0.05), while there were no significant change of mRNA expression levels among P450scc, P450c17 and 17β-HSD-1 (P>0.05). ERα and ERβ mRNA median expression levels were 208 and 116 in the uterine leiomyoma tissues, and were 24 and 95 in the myometrium. Compared to that of the myometrium, ERα mRNA level in the uterine leiomyoma tissue was significantly higher (P=0.001), while there were no significant change of ERβ mRNA level (P=0.193). (2) After cultured with different concentrations of metformin (10, 50 and 100 μmol/L), the P450arom mRNA levels in the uterine leiomyoma tissues were 9±4, 8±5 and 8±3 respectively in the treatment groups and was 16±5 in the control group. Compared to that of the control group, P450arom mRNA expression levels in the treatment groups were significantly declined (P<0.05). There were no significant different change of mRNA expression levels among 3β-HSD-2, ERα and ERβ between the treatment groups and the control group (P>0.05). Conclusions: Metformin could down-regulate the mRNA expression level of aromatase in the uterine leiomyoma cells. These results indicate that metformin may inhibit the local estrogen synthesis and therefore suppress the development of uterine leiomyoma.
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Affiliation(s)
- S Y Wang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
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Zhou YF, Zhong GY, Zhu JX, Wei RR, Wen L, Jiang W, Cao L, Ren G. [Protective effects and action mechanism of extract from Tibetan medicine Yajima(Chrysosplenium nudicaule) on mice with intrahepatic cholestasis induced by ANIT]. Zhongguo Zhong Yao Za Zhi 2019; 44:1058-1063. [PMID: 30989870 DOI: 10.19540/j.cnki.cjcmm.20181101.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Chrysosplenium nudicaule,Tibetan name " Yajima",is recorded as an effective medicine for the treatment of liver and gallbladder diseases by Tibetan Pharmacopoeia published in the past dynasties,but its traditional efficacy has not yet been investigated by means of modern pharmacological research methods. In this paper,the protective effect of extract of C. nudicaule(ECN) on liver injury in mice was observed by using the mice model of intrahepatic cholestasis(IC) induced by α-naphthyl isothiocyanate(ANIT) and the possible mechanism by which ECN work as the therapeutic agent was discussed. The results showed that the serum levels of AST,ALT,ALP,DBIL,TBIL and TBA of the model mice were notably reduced in dose-dependent manner(P<0. 01,P<0. 05). The activity of SOD and GSH-Px in the liver homogenate of mice was increased,while the content of MDA was decreased(P<0. 01,P<0. 05).Pathological examination of liver in mice showed that ECN could improve the pathological changes of liver tissue in mice. The mRNA expression level of genes related to bile acid metabolism were detected by RT-PCR and the results suggested that ECN could significantly increase the expression of genes such as BSEP,FXR and MRP2(P<0. 01,P<0. 05),meanwhile significantly reduce the expression of CYP7 A1(P<0. 01,P<0. 05). These results confirmed the protective effect of ECN on intrahepatic cholestasis-induced liver injury in mice,and indicated that the mechanism may be related to activating FXR and its target genes,reducing bile acid synthesis and increasing bile acid excretion. This study provides a modern pharmacological basis for the clinical application of Yajima in Tibetan medicine.
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Affiliation(s)
- Yan-Fei Zhou
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine,Jiangxi University of Traditional Chinese Medicine Nanchang 330004,China
| | - Guo-Yue Zhong
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine,Jiangxi University of Traditional Chinese Medicine Nanchang 330004,China
| | - Ji-Xiao Zhu
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine,Jiangxi University of Traditional Chinese Medicine Nanchang 330004,China
| | - Rong-Rui Wei
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine,Jiangxi University of Traditional Chinese Medicine Nanchang 330004,China
| | - Le Wen
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine,Jiangxi University of Traditional Chinese Medicine Nanchang 330004,China
| | - Wei Jiang
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine,Jiangxi University of Traditional Chinese Medicine Nanchang 330004,China
| | - Lan Cao
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine,Jiangxi University of Traditional Chinese Medicine Nanchang 330004,China
| | - Gang Ren
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine,Jiangxi University of Traditional Chinese Medicine Nanchang 330004,China
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Liao B, Zhou FK, Zhong SX, Zhou YF, Qin YS, Zhou MX, Qin C. [Construction and analysis of gene co-expression networks in intracranial aneurysm]. Zhonghua Yi Xue Za Zhi 2019; 99:525-531. [PMID: 30786351 DOI: 10.3760/cma.j.issn.0376-2491.2019.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the expression microarray data in the public databases of intracranial aneurysms (IA) using bioinformatics, and to provide important information for the study of disease mechanisms. Methods: Gene co-expression network was constructed by weighted gene co-expression network analysis (WGCNA) based on the dataset (GSE75436) and pivot genes were identified. Using the online tool DAVID (Database for Annotation, Visualization, and Integrated Discovery) to perform GO function enrichment and KEGG path analysis on modules highly related to IA. Results: Three IA-related modules were screened out, and 14 pivot genes (COL3A1, SPARC, CDH11, COL5A1, HOPX, CLEC11A, GALNT10, ADAMTS2, CEMIP, KIAA1755, COL11A1, ZIC2, CDKN2A, and LINC00460) in the brown module were identified; the analysis of GO showed that the brown module was mainly enriched in extracellular matrix organization, extracellular matrix organization, cell adhesion and other biological processes; the analysis of KEGG indicated that the brown module involved in ECM-receptor interaction, Focal adhesion, protein digestion and absorption, PI3K-Akt signaling pathway. Conclusion: Based on WGCNA, we identified modular and pivotal genes that are critical to the development of IA, and they may become potential biomarkers and/or therapeutic targets.
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Affiliation(s)
- B Liao
- Department of Neurology, First Affiliated Hospital, Guangxi Medical University, Nanning 530021, China
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Zhang F, Zhang YC, Zhang JP, Yu Y, Zhou YF, Feng YZ, Yang YW, Lei MQ, He H, Lian JP, Chen YQ. Rice UCL8, a plantacyanin gene targeted by miR408, regulates fertility by controlling pollen tube germination and growth. Rice (N Y) 2018; 11:60. [PMID: 30456598 PMCID: PMC6242803 DOI: 10.1186/s12284-018-0253-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 11/07/2018] [Indexed: 05/21/2023]
Abstract
BACKGROUND Pollen tube formation and growth are crucial steps that lead to seed production. Despite the importance of pollen tube growth, the molecular mechanisms implicated in its spatial and temporal control are not fully known. In this study, we found an uclacyanin gene, OsUCL8, that regulates pollen intine deposition and pollen tube growth. FINDINGS The overexpression of OsUCL8 led to a striking irregularity in pollen tube growth and pollination and thus affected the seed setting rate in rice; many pollen tubes appeared to lose the ability to grow directly into the style. Conversely, plants with OsUCL8 knocked out and plants overexpressing miR408, a negative regulator of OsUCL8, had vigorous pollens with a higher germination rate. We further demonstrated that OsUCL8 mainly affects pollen intine formation. The addition of Vitamin B1 (VB1) significantly contributed to the germination of OXUCL8 pollen grains, suggesting that OsUCL8 could be associated with VB1 production. Using a yeast two-hybrid system, we revealed that OsUCL8 interacts with the protein OsPKIWI, a homolog of the Arabidopsis FNRL protein. We thus hypothesized that OsUCL8 might regulate the production of VB components by interacting with OsPKIWI. This study revealed a novel molecular mechanism of pollen tube growth regulation. CONCLUSIONS The rice plantacyanin family member OsUCL8 plays an important role in pollen tube formation and growth and, in turn, regulates fertility and the seed setting rate.
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Affiliation(s)
- Fan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Yu-Chan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Jin-Ping Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Yang Yu
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Yan-Fei Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Yan-Zhao Feng
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Yu-Wei Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Meng-Qi Lei
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Huang He
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Jian-Pin Lian
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Yue-Qin Chen
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
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Zhou YF, Zhou Z, Batistel F, Martinez-Cortés I, Pate RT, Luchini DL, Loor JJ. Methionine and choline supply alter transmethylation, transsulfuration, and cytidine 5'-diphosphocholine pathways to different extents in isolated primary liver cells from dairy cows. J Dairy Sci 2018; 101:11384-11395. [PMID: 30316602 DOI: 10.3168/jds.2017-14236] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 09/07/2018] [Indexed: 11/19/2022]
Abstract
Insufficient supply of Met and choline (Chol) around parturition could compromise hepatic metabolism and milk protein synthesis in dairy cows. Mechanistic responses associated with supply of Met or Chol in primary liver cells enriched with hepatocytes (PHEP) from cows have not been thoroughly ascertained. Objectives were to isolate and culture PHEP to examine abundance of genes and proteins related to transmethylation, transsulfuration, and cytidine 5'-diphosphocholine (CDP-choline) pathways in response to Met or Chol. The PHEP were isolated from liver biopsies of Holstein cows (160 d in lactation). More than 90% of isolated cells stained positively for the hepatocyte marker cytokeratin 18. Cytochrome P450 (CYP1A1) mRNA abundance was only detectable in the PHEP and liver tissue compared with mammary tissue. Furthermore, in response to exogenous Met (80 μM vs. control) PHEP secreted greater amounts of albumin and urea. Subsequently, PHEP were cultured with Met (40 μM) or Chol (80 mg/dL) for 24 h. Compared with control or Chol, mRNA and protein abundance of methionine adenosyltransferase 1A (MAT1A) and phosphatidylethanolamine methyltransferase (PEMT) were greater in PHEP treated with Met. The mRNA abundance of S-adenosylhomocysteine hydrolase (SAHH), betaine-homocysteine methyltransferase (BHMT), and sarcosine dehydrogenase (SARDH) was greater in Met-treated PHEP compared with control or Chol. Compared with control, greater expression of 5-methyltetrahydrofolate-homocysteine methyltransferase (MTR), betaine aldehyde dehydrogenase (BADH), and choline dehydrogenase (CHDH) was observed in cells supplemented with Met and Chol. However, Chol led to the greatest mRNA abundance of CHDH. Abundance of choline kinase α (CHKA), choline kinase β (CHKB), phosphate cytidylyltransferase 1 α (PCYT1A), and choline/ethanolamine phosphotransferase 1 (CEPT1) in the CDP-choline pathway was greater in PHEP treated with Chol compared with control or Met. In the transsulfuration pathway, mRNA and protein abundance of cystathionine β-synthase (CBS) was greater in PHEP treated with Met compared with control or Chol. Similarly, abundance of cysteine sulfinic acid decarboxylase (CSAD), glutamate-cysteine ligase, catalytic subunit (GCLC), and glutathione reductase (GSR) was greater in response to Met compared with control or Chol. Overall, these findings suggest that transmethylation and transsulfuration in dairy cow primary liver cells are more responsive to Met supply, whereas the CDP-choline pathway is more responsive to Chol supply. The relevance of these data in vivo merit further study.
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Affiliation(s)
- Y F Zhou
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agriculture University, Wuhan 430070, Hubei, China; Mammalian NutriPhysioGenomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - Z Zhou
- Department of Animal and Veterinary Sciences, Clemson University, Clemson 29634
| | - F Batistel
- Mammalian NutriPhysioGenomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - I Martinez-Cortés
- Department of Immunology, National Autonomous University of Mexico (UNAM), Mexico City, Mexico 04510
| | - R T Pate
- Mammalian NutriPhysioGenomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | | | - J J Loor
- Mammalian NutriPhysioGenomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801.
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Huang XM, Chen YY, Zhong BL, Wang GM, Wang AW, Zhou YF, Li YM, Tan X. [Primary pulmonary myxoid sarcoma with EWSR1-CREB1 fusion: report of a case]. Zhonghua Bing Li Xue Za Zhi 2018; 47:798-799. [PMID: 30317742 DOI: 10.3760/cma.j.issn.0529-5807.2018.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Wang C, Li JL, Wei HK, Zhou YF, Tan JJ, Sun HQ, Jiang SW, Peng J. Linear growth model analysis of factors affecting boar semen characteristics in Southern China. J Anim Sci 2018; 95:5339-5346. [PMID: 29293763 DOI: 10.2527/jas2017.1863] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study investigated the factors affecting the semen traits of boars in Southern China. A total of 172,408 ejaculates of boars from 9 AI centers were collected from January 2013 to May 2016. A linear growth model was used to analyze the effects of leve1 1 (boar breed, age, season, and boar age at herd entry) and level 2 (housing type) factors on semen quality. The intraclass correlation coefficients of semen volume, total sperm number, functional sperm number, sperm concentration, motility, and abnormal sperm were 0.62, 0.62, 0.61, 0.60, 0.54, and 0.70, respectively. Boars reared in ordinary houses had lower total and functional sperm numbers than those reared in air filtration houses ( < 0.05). The functional sperm number of Duroc boars was lower than that of Landrace and Yorkshire boars ( < 0.05). The total and functional sperm numbers were lowest from May to September and peaked at the age of 34.1 and 37.7 mo, respectively. Furthermore, boars aged 8 and 9 mo at herd entry had greater functional sperm numbers than those aged 5, 6, 7, and 12 mo at herd entry ( < 0.05), whereas no significant difference was observed between boars aged 8 mo and boars aged 9 mo at herd entry ( > 0.05). In conclusion, the linear growth model is suitable for longitudinal data analysis. To improve boar breeding, sunstroke prevention in the early spring should be given greater attention. Importantly, 8 mo appears to be the most suitable age for boar introduction, especially for Duroc boars.
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Zhang JP, Yu Y, Feng YZ, Zhou YF, Zhang F, Yang YW, Lei MQ, Zhang YC, Chen YQ. MiR408 Regulates Grain Yield and Photosynthesis via a Phytocyanin Protein. Plant Physiol 2017; 175:1175-1185. [PMID: 28904074 PMCID: PMC5664482 DOI: 10.1104/pp.17.01169] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 09/11/2017] [Indexed: 05/18/2023]
Abstract
Increasing grain yield is the most important object of crop breeding. Here, we report that the elevated expression of a conserved microRNA, OsmiR408, could positively regulate grain yield in rice (Oryza sativa) by increasing panicle branches and grain number. We further showed that OsmiR408 regulates grain yield by down-regulating its downstream target, OsUCL8, which is an uclacyanin (UCL) gene of the phytocyanin family. The knock down or knock out of OsUCL8 also increases grain yield, while the overexpression of OsUCL8 results in an opposite phenotype. Spatial and temporal expression analyses showed that OsUCL8 was highly expressed in pistils, young panicles, developing seeds, and inflorescence meristem and was nearly complementary to that of OsmiR408. Interestingly, the OsUCL8 protein was localized to the cytoplasm, distinct from a majority of phytocyanins, which localize to the plasma membrane. Further studies revealed that the cleavage of OsUCL8 by miR408 affects copper homeostasis in the plant cell, which, in turn, affects the abundance of plastocyanin proteins and photosynthesis in rice. To our knowledge, this is the first report of the effects of miR408-OsUCL8 in regulating rice photosynthesis and grain yield. Our study further broadens the perspective of microRNAs and UCLs and provides important information for breeding high-yielding crops through genetic engineering.
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Affiliation(s)
- Jin-Ping Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
| | - Yang Yu
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
| | - Yan-Zhao Feng
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
| | - Yan-Fei Zhou
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
| | - Fan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
| | - Yu-Wei Yang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
| | - Meng-Qi Lei
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
| | - Yu-Chan Zhang
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
| | - Yue-Qin Chen
- Guangdong Provincial Key Laboratory of Plant Resources, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
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Liang RP, Jia JJ, Li JH, He N, Zhou YF, Jiang L, Bai T, Xie HY, Zhou L, Sun YL. Mitofusin-2 mediated mitochondrial Ca 2+ uptake 1/2 induced liver injury in rat remote ischemic perconditioning liver transplantation and alpha mouse liver-12 hypoxia cell line models. World J Gastroenterol 2017; 23:6995-7008. [PMID: 29097872 PMCID: PMC5658317 DOI: 10.3748/wjg.v23.i38.6995] [Citation(s) in RCA: 5] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 08/19/2017] [Accepted: 09/05/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the protective mechanism of mitofusin-2 (Mfn2) in rat remote ischemic perconditioning (RIC) models and revalidate it in alpha mouse liver-12 (AML-12) hypoxia cell lines.
METHODS Sprague-Dawley rats were divided into three groups (n = 6 each): sham, orthotopic liver transplantation and RIC. After operation, blood samples were collected to test alanine aminotransferase and aspartate aminotransferase. The liver lobes were harvested for histopathological examination, western blotting (WB) and quantitative real-time (qRT)-PCR. AML-12 cell lines were then subjected to normal culture, anoxic incubator tank culture (hypoxia) and anoxic incubator tank culture with Mfn2 knockdown (hypoxia + Si), and data of qRT-PCR, WB, mitochondrial membrane potential (ΔΨm), apoptosis, endoplasmic reticulum Ca2+ concentrations and mitochondrial Ca2+ concentrations were collected.
RESULTS Both sham and normal culture groups showed no injury during the experiment. The RIC group showed amelioration of liver function compared with the orthotopic liver transplantation group (P < 0.05). qRT-PCR and WB confirmed that Mfn2-mitochondrial Ca2+ uptake 1/2 (MICUs) axis was changed (P < 0.005). In AML-12 cell lines, compared with the hypoxia group, the hypoxia + Si group attenuated the collapse of ΔΨm and apoptosis (P < 0.005). The endoplasmic reticulum Ca2+ decrease and mitochondrial Ca2+ overloading observed in the hypoxia group were also attenuated in the hypoxia + Si group (P < 0.005). Finally, qRT-PCR and WB confirmed the Mfn2-MICUs axis change in all the groups (P < 0.005).
CONCLUSION Mfn2 participates in liver injury in rat RIC models and AML-12 hypoxia cell lines by regulating the MICUs pathway.
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Affiliation(s)
- Ruo-Peng Liang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
- Institute of Hepatobiliary and Pancreatic Diseases, Zhengzhou University, Zhengzhou 450052, Henan Province, China
| | - Jun-Jun Jia
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, Hangzhou 310003, Zhejiang Province, China
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310003, Zhejiang Province, China
| | - Jian-Hui Li
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, Hangzhou 310003, Zhejiang Province, China
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310003, Zhejiang Province, China
| | - Ning He
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, Hangzhou 310003, Zhejiang Province, China
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310003, Zhejiang Province, China
| | - Yan-Fei Zhou
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, Hangzhou 310003, Zhejiang Province, China
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310003, Zhejiang Province, China
| | - Li Jiang
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, Hangzhou 310003, Zhejiang Province, China
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310003, Zhejiang Province, China
| | - Tao Bai
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
- Institute of Hepatobiliary and Pancreatic Diseases, Zhengzhou University, Zhengzhou 450052, Henan Province, China
| | - Hai-Yang Xie
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, Hangzhou 310003, Zhejiang Province, China
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310003, Zhejiang Province, China
| | - Lin Zhou
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, Hangzhou 310003, Zhejiang Province, China
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310003, Zhejiang Province, China
| | - Yu-Ling Sun
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
- Institute of Hepatobiliary and Pancreatic Diseases, Zhengzhou University, Zhengzhou 450052, Henan Province, China
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Wang C, Li JL, Wei HK, Zhou YF, Tan JJ, Sun HQ, Jiang SW, Peng J. Effects of feeding regimen on weight gain, semen characteristics, libido, and lameness in 170- to 250-kilogram Duroc boars. J Anim Sci 2017; 94:4666-4676. [PMID: 27898961 DOI: 10.2527/jas.2016-0803] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A 2-period field trial was conducted to determine the effects of feeding regimen on weight gain, semen characteristics, libido, and lameness in 170- to 200-kg (period 1) and 200- to 250-kg (period 2) boars. Sixty-one Duroc boars were allotted to 1 of 3 dietary treatments and 15 g/d fish oil was also provided for each experimental boar, to maintain the n-6:n-3 intake ratio at approximately 6.1:1. The energy intakes of the 3 treatment groups were controlled by basing the feed intake on a corn-soybean meal-based diet (3.11 Mcal/kg of ME) to create: 1) low energy intake group (L, = 20, 7.3 Mcal/d of ME), 2) medium energy intake group (M, = 20, 7.7 Mcal/d of ME), and 3) high energy intake group (H, = 21, 8.3 Mcal/d of ME) in period 1. Feed intake was then increased to 7.6, 8.2, and 8.6 Mcal/d of ME for the 3 groups, respectively, in period 2. During the 28-wk experimental period, boar weight gain, testis volume, semen characteristics, libido, toe measurements, claw lesions, and lameness were examined, and the number of boars culled in each group was recorded to calculate the culling rate. Although there were no differences in testis volume, sperm concentration, and motility, the percentage of abnormal sperm, the percentage of claw lesions, and claw lesion scores differed among treatments ( > 0.05), and ADG was significantly increased with the increase of energy intake between the 2 periods ( < 0.05). The M and H boars had significantly greater total sperm number and functional sperm number than the L boars ( < 0.05), while no significant difference was observed between the M and H groups ( > 0.05). Nonetheless, the H boars took more time to mount the collection dummy and produce an ejaculate and, in particular, showed a greater percentage of lameness than the L and M boars ( < 0.05). Therefore, the medium energy intake regimen (energy intakes of 7.7 and 8.2 Mcal/d of ME with ADG of 454.5 and 375.3 g/d in 2 periods, respectively) improved the total sperm number and functional sperm number, and meanwhile decreased the occurrence of lameness in 170- to 250-kg Duroc boars.
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Zhou YF, Liu YQ, Wei HK, Peng J. Estimation of the optimum digestible lysine level for Cherry Valley ducks. Poult Sci 2017; 96:838-843. [PMID: 27738116 DOI: 10.3382/ps/pew306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 01/08/2016] [Accepted: 08/03/2016] [Indexed: 11/20/2022] Open
Abstract
The aim of the current study was to determine the digestible lysine (DLys) requirement of Cherry Valley ducks from 1 to 14 d and from 15 to 35 d of age. One-day-old male Cherry Valley ducks (n = 320) were divided randomly and evenly into five treatments with 8 replicates of 8 birds. Ducks were fed adequate levels of digestible amino acid but with graded levels of DLys: 0.80, 0.88, 0.96, 1.04, and 1.12% from 1 to 14 d; 0.60, 0.68, 0.76, 0.84, and 0.92% from 15 to 35 d. At 35 d of age, 8 ducks per treatment were slaughtered for evaluating the yields of abdominal fat, subcutaneous fat, breast meat, and leg meat. Additionally, a 7-d metabolizable experiment was conducted with ducks of the same hatch beginning on d 35 (8 ducks per treatment). The results showed that the DLys level in diet had a quadratic relationship both with the average daily gain (ADG) and feed:gain ratio (F/G). According to the quadratic model, an optimum digestible lysine level was 0.948% from 0 to 14 d and 0.758% from 15 to 35 d based on ADG. The digestible lysine level for obtaining minimum F/G were 0.986% (0 ∼ 14 d) and 0.792% (15 ∼ 35 d), respectively. Breast meat yield (P = 0.110) and subcutaneous fat percentage (P = 0.021) showed a quadratic or linear response to the increasing dietary DLys level. To achieve maximum breast meat yield, the digestible lysine level of 0.961% and 0.761% were needed for the starter period (1 ∼ 14 d) and the growth period (14 ∼ 35 d), respectively. N excretion showed a quadratic response to the increasing dietary DLys level (P = 0.103). The results of the current study suggested that the optimum digestible lysine level was very different with the response criterion. The dietary digestible lysine levels were 0.948, 0.961% in the starter period (1 ∼ 14 d) and 0.758, 0.761% in the growth period (15 ∼ 35 d) for ADG, F/G, respectively.
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Affiliation(s)
- Y F Zhou
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Y Q Liu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - H K Wei
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - J Peng
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
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Zhang JJ, Duan JR, Zhou YF, Peng JY, Fang DA. Genetic diversity of mitochondrial control region (D-Loop) polymorphisms in Coilia ectenes taihuensis inhabiting Taihu Lake, China. Genet Mol Res 2017; 16:gmr-16-01-gmr.16019457. [PMID: 28362986 DOI: 10.4238/gmr16019457] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Coilia ectenes is a commercially important fishery species in China. C. ectenes taihuensis is an endemic and dominant species found in Taihu Lake of China. When compared with C. ectenes, C. ectenes taihuensis lacks anadromous behavior, and can independently grow and reproduce in Taihu Lake. In this study, the mitochondrial DNA control region (D-loop) sequences were employed to investigate the genetic diversity and population structure of C. ectenes taihuensis. Sixty-eight individuals collected from 4 localities in Taihu Lake were examined. Results indicated that in the 887-bp D-loop region, seventy-seven (8.68%) sites were variant, contributing to 53 distinct haplotypes. Although the population haplotype diversity (Hd = 0.971 to 1.000) was generally high, the nucleotide diversity (π = 0.616 to 0.731%) was relatively low among the 4 populations. Additionally, the genetic distances ranged from 0.62 to 0.74% within the populations and from 0.67 to 0.74% between the populations. The neighbor-joining tree indicated that a distinct distribution of phylogenetic structure existed among haplotypes. Analysis of molecular variance and FST statistics suggested that a divergence existed among populations in 4 localities, indicating that gene communication might have occurred among those populations. Furthermore, neutral tests and analysis of mismatch distribution reflected that C. ectenes taihuensis might have undergone a population expansion during the evolution process. Our study showed the population genetic diversity and structure of C. ectenes taihuensis. Results from this study might be helpful in the development and protection of fishery resource within the localities in Taihu Lake in future.
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Affiliation(s)
- J J Zhang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - J R Duan
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China
| | - Y F Zhou
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China
| | - J Y Peng
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - D A Fang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China .,Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China
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He X, Wang SP, Zhou YF, Huang CM, Ning SB, LvQ SJ. A novel method to detect circulating antigens of Schistosoma japonicum using a gold nanorod optical sensor. Trop Biomed 2017; 34:180-190. [PMID: 33592997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Diagnostic method of Schistosoma japonicum (S.japonicum) is the key of schistosomiasis prevention and control. In China, schistosomiasis reached the stage of transmission control, and almost of the epidemic areas tend to have low infection rate and intensity, but it is difficult for the existing detection methods to achieve accurate monitoring. In this study, a novel method to detect the circulating antigens of S.japonicum using gold nanorods optical sensor was developed. Gold nanorods were prepared by seed-mediated growth followed by deposition onto Indium-Tin-Oxide (ITO) glass to fabricate a solid phase biosensor. In order to assembly between the ITO glass and gold nanorod, hydroxylation and sulfhydrylation were carried out to modify the ITO glass. Surface of gold nanorods was conjugated with an SIEA26-28kDaSjscFv antibody against S.japonicum circulating antigens, and the sensor optical changed upon antigen-antibody recognition. The sensor was used to detect S.japonicum infection in rabbits by testing the serum once a week for 8 weeks. Results revealed different displacement of localized surface plasmon resonance (LSPR) of the gold nanorod optical sensor each week while the control group showed no such change in LSPR. Simultaneously, Indirect Hemagglutination Assay(IHA) and Fast Enzyme-Linked Immuno Sorbent Assay (F-ELISA) method were used to test these samples. Ten human serum samples from S.japonicum infected patients were analyzed using the gold nanorods optical sensor, which revealed that health human serum did not show any spectrum displacement. We developed a specificity gold nanorod optical sensor by combining the SIEA26-28kDaSjscFv, which was used to detect circulating antigens of S.japonicum. This method is expected to overcome the issues pertaining to the testing of circulating antigens of S.japonicum.
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Affiliation(s)
- X He
- Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha, 410078, PR China
| | - S P Wang
- Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha, 410078, PR China
| | - Y F Zhou
- Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha, 410078, PR China
| | - C M Huang
- Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha, 410078, PR China
| | - S B Ning
- Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha, 410078, PR China
| | - S J LvQ
- Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha, 410078, PR China
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Liu Q, Duan RJ, Zhou YF, Wei HK, Peng J, Li JL. Supplementing oregano essential oil to boar diet with strengthened fish oil: Effects on semen antioxidant status and semen quality parameters. Andrologia 2017; 49. [PMID: 28224651 DOI: 10.1111/and.12764] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 10/10/2016] [Indexed: 11/29/2022] Open
Abstract
Previous research has shown benefits of dietary fish oil supplementation on semen quality of boars. However, little is known about how antioxidant protects lipid peroxidation on spermatozoa from n-3 polyunsaturated fatty acid (PUFA) addition. This study evaluated the effect of oregano essential oil (OEO) supplementation on semen antioxidant status and semen quality in boars fed a diet enriched with fish oil. Thirty-four mature boars of proven fertility, received daily 2.5 kg basal diet top-dressed with 45 g soybean oil and 15 g fish oil to meet the n-3 PUFA requirement of spermatozoa, randomly allocated to one of four groups supplemented with 100 mg α-tocopheryl acetate kg-1 (control), or 250 or 500 or 750 mg OEO kg-1 for 16 weeks. Semen was collected at weeks 0, 8, 12 and 16 for measurements of sperm production, motion characteristics, sperm α-tocopherol content, antioxidant enzyme activities, reactive oxygen species (ROS), DNA damage (8-hydroxydeoxyguanosine, 8-OHdG), lipoperoxidation (malondialdehyde, MDA) and seminal total antioxidant capacity (TAC). Sperm production and motion characteristics were similar (p > .05) among groups throughout the experimental week 16, but increased (p < .01) with experimental week. Although higher α-tocopherol content and superoxide dismutase (SOD) activities were in OEO group spermatozoa, feeding diet with 500 mg/kg OEO resulted in elevation in seminal TAC, decrease in sperm ROS, MDA and 8-OHdG than control group (p < .05). Overall, these results support the view that oregano essential oil has a positive effect on antioxidant capacity in boar when used fish oil.
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Affiliation(s)
- Q Liu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - R J Duan
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Y F Zhou
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - H K Wei
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - J Peng
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - J L Li
- Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Lab of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, China.,YangXiang Joint Stock Company, Guigang, China
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He N, Jia JJ, Li JH, Zhou YF, Lin BY, Peng YF, Chen JJ, Chen TC, Tong RL, Jiang L, Xie HY, Zhou L, Zheng SS. Remote ischemic perconditioning prevents liver transplantation-induced ischemia/reperfusion injury in rats: Role of ROS/RNS and eNOS. World J Gastroenterol 2017; 23:830-841. [PMID: 28223727 PMCID: PMC5296199 DOI: 10.3748/wjg.v23.i5.830] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 12/08/2016] [Accepted: 12/21/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the underlying mechanisms of the protective role of remote ischemic perconditioning (RIPerC) in rat liver transplantation.
METHODS Sprague-Dawley rats were subjected to sham, orthotopic liver transplantation (OLT), ischemic postconditioning (IPostC) or RIPerC. After 3 h reperfusion, blood samples were taken for measurement of alanine aminotransferase, aspartate aminotransferase, creatinine (Cr) and creatinine kinase-myocardial band (CK-MB). The liver lobes were harvested for the following measurements: reactive oxygen species (ROS), H2O2, mitochondrial membrane potential (ΔΨm) and total nitric oxide (NO). These measurements were determined using an ROS/H2O2, JC1 and Total NOx Assay Kit, respectively. Endothelial NO synthase (eNOS) was analyzed by reverse transcription-polymerase chain reaction (RT-PCR) and western blotting, and peroxynitrite was semi-quantified by western blotting of 3-nitrotyrosine.
RESULTS Compared with the OLT group, the grafts subjected to RIPerC showed significantly improved liver and remote organ functions (P < 0.05). ROS (P < 0.001) including H2O2 (P < 0.05) were largely elevated in the OLT group as compared with the sham group, and RIPerC (P < 0.05) reversed this trend. The collapse of ΔΨm induced by OLT ischemia/reperfusion (I/R) injury was significantly attenuated in the RIPerC group (P < 0.001). A marked increase of NO content and phosphoserine eNOS, both in protein and mRNA levels, was observed in liver graft of the RIPerC group as compared with the OLT group (P < 0.05). I/R-induced 3-nitrotyrosine content was significantly reduced in the RIPerC group as compared with the OLT group (P < 0.05). There were no significant differences between the RIPerC and IPostC groups for all the results except Cr. The Cr level was lower in the RIPerC group than in the IPostC group (P < 0.01).
CONCLUSION Liver graft protection by RIPerC is similar to or better than that of IPostC, and involves inhibition of oxidative stress and up-regulation of the PI3K/Akt/eNOS/NO pathway.
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Yu Y, Li QF, Zhang JP, Zhang F, Zhou YF, Feng YZ, Chen YQ, Zhang YC. Laccase-13 Regulates Seed Setting Rate by Affecting Hydrogen Peroxide Dynamics and Mitochondrial Integrity in Rice. Front Plant Sci 2017; 8:1324. [PMID: 28798768 PMCID: PMC5526905 DOI: 10.3389/fpls.2017.01324] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 07/14/2017] [Indexed: 05/03/2023]
Abstract
Seed setting rate is one of the most important components of rice grain yield. To date, only several genes regulating setting rate have been identified in plant. In this study, we showed that laccase-13 (OsLAC13), a member of laccase family genes which are known for their roles in modulating phenylpropanoid pathway and secondary lignification in cell wall, exerts a regulatory function in rice seed setting rate. OsLAC13 expressed in anthers and promotes hydrogen peroxide production both in vitro and in the filaments and anther connectives. Knock-out of OsLAC13 showed significantly increased seed setting rate, while overexpression of this gene exhibited induced mitochondrial damage and suppressed sugar transportation in anthers, which in turn affected seed setting rate. OsLAC13 also induced H2O2 production and mitochondrial damage in the root tip cells which caused the lethal phenotype. We also showed that high abundant of OsmiR397, the suppressor of OsLAC13 mRNA, increased the seed setting rate of rice plants, and restrains H2O2 accumulation in roots during oxidative stress. Our results suggested a novel regulatory role of OsLAC13 gene in regulating seed setting rate by affecting H2O2 dynamics and mitochondrial integrity in rice.
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Zhou YF. [Attention should be paid to skills of minimally invasive surgeries of the uterus to prevent uterine rupture during pregnancy]. Zhonghua Fu Chan Ke Za Zhi 2016; 51:832-834. [PMID: 27916066 DOI: 10.3760/cma.j.issn.0529-567x.2016.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Zhou YF, Liu L, Gu ZY, Zhao BY, Liao RF. [Autologous ipsilateral lamellar corneal-flap transposition for treatment of peripheral corneal perforation]. Zhonghua Yan Ke Za Zhi 2016; 52:663-8. [PMID: 27647246 DOI: 10.3760/cma.j.issn.0412-4081.2016.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To study the clinical outcome of autologous ipsilateral lamellar corneal-flap transposition for treatment of peripheral corneal perforation. METHODS Medical records of 13 patients who underwent autologous ipsilateral lamellar corneal-flap transposition for peripheral corneal perforation from January 2008 to February 2015 were retrospectively reviewed. The diameter of the corneal ulcers was all ≤ 3.0 mm, and the diameter of perforations was all ≤ 2.0 mm. All patients were followed up for 3-12 months with an average of 8 months. The healing of ulcer, clarity of the grafts, pre-and postoperative visual acuity, and astigmatism were documented and analyzed. RESULTS At 1 day after surgery, all patients had normal anterior chamber depth without aqueous leak. No double chamber or iris synechia was found. The corneal grafts showed mild to moderate edema. On postoperative days 7-14, the corneal edema receded, the grafts became transparent gradually, and the ulcer margin was blurred. Three months after surgery, all the grafts remained transparent. There was no recurrence of ulcer during the follow-up period. The best corrected visual acuity before and after surgery was 0.44 ± 0.19 and 0.47 ± 0.20, respectively, which indicated no statistically significant difference(t=0.706, P=0.461). The corneal astigmatism before and after surgery was 0.44±0.19 and 0.47±0.20, respectively, which showed statistically significant difference(t=2.391, P<0.05). CONCLUSIONS Autologous ipsilateral lamellar corneal-flap transposition is a safe and effective surgical procedure for treating peripheral corneal perforation. It can be considered as an alternative method for penetrating or lamellar keratoplaty when the availability of corneal tissue is limited, or for cases with a high risk of developing immunologic allograft rejection, although the surgical indications are limited. (Chin J Ophthalmol, 2016, 52: 663-668).
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Affiliation(s)
- Y F Zhou
- Department of Ophthalmology, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
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