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Ning C, Li N, Wang L, Guo Y, Ji C, Li Z, Shang Y, Zhang X, Sun Y, Huang X, Leng Q, Cai X, Meng Q, Qiao J. STnc1280, a trans-coding sRNA is involved in virulence modulation via targeting gldA mRNA in Salmonella Typhimurium. J Med Microbiol 2024; 73. [PMID: 38353511 DOI: 10.1099/jmm.0.001804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024] Open
Abstract
Introduction. Salmonella Typhimurium (STM) is a food-borne Gram-negative bacterium, which can infect humans and a wide range of livestock and poultry, causing a variety of diseases such as septicaemia, enteritis and abortion.Hypothesis/Gap Statement. We will decipher the impacts of sRNA STnc1280 on STM virulence and provide a theoretical basis to reveal the regulatory role and molecular mechanism of STnc1280.Aim. The main objective of this study was to clarify whether sRNA STnc1280 exerts regulatory roles on STM pathogenicity.Methodology. The STnc1280 gene was amplified and its molecular characteristics were analysed in this study. Then, STnc1280 gene deletion strain (STM-ΔSTnc1280) and the complementary strain (ΔSTnc1280/STnc1280) were constructed by λ-Red homologous recombination method, respectively, to analyse of adhesion and invasive ability and pathogenicity of different strains. Subsequently, the potential target gene regulated by STnc1280 was predicted using target RNA2 software, followed by the verification of the interaction between STnc1280 and target mRNA using the dual plasmid reporter system (DPRS). Furthermore, the mRNA and protein level of target gene was determined using qRT-PCR and Western blot, respectively.Results. The results revealed that the cell adhesion and invasive ability and pathogenicity of STM-ΔSTnc1280 were significantly reduced compared to STM-SL1344 strain, indicating that the deficiency of STnc1280 gene significantly influenced STM pathogenicity. The DPRS results showed that STnc1280 can interact with the mRNA of target gene gldA, thus suppressing the expression of lacZ gene. Furthermore, the level of gldA mRNA was not influenced in STM-ΔSTnc1280, but the expression of GldA protein decreased significantly.Conclusion. Combining the bioinformatic analysis, these findings suggested that STnc1280 may bind to the SD sequence of gldA mRNA, hindering the binding of ribosomes to gldA mRNA, thereby inhibiting the expression of GldA protein to modulate the virulence of STM.
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Affiliation(s)
- Chengcheng Ning
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
- College of Animal Science and Technology, Xinjiang Agricultural Vocational and Technical College, Changji, Xinjiang, 831100, PR China
| | - Na Li
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
| | - Lixia Wang
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
| | - Yun Guo
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
| | - Chunhui Ji
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
| | - Zhiyuan Li
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
| | - Yunxia Shang
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
| | - Xingxing Zhang
- Institute of Animal Science and Veterinary Research, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, Xinjiang, 832000, PR China
| | - Yaoqiang Sun
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
| | - Xiaoxing Huang
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
| | - Qingwen Leng
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
| | - Xuepeng Cai
- State Key Lab of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, 730046, PR China
| | - Qingling Meng
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
| | - Jun Qiao
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, PR China
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Xu Z, Yang B, Shan W, Liao J, Shao W, Wu P, Zhou S, Ning C, Luo X, Zhu Q, Zhang H, Ma F, Guan J, Chen X. Comparison of the effect of levonorgestrel-intrauterine system with or without oral megestrol acetate on fertility-preserving treatment in patients with atypical endometrial hyperplasia: A prospective, open-label, randomized controlled phase II study. Gynecol Oncol 2023; 174:133-141. [PMID: 37182434 DOI: 10.1016/j.ygyno.2023.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 04/30/2023] [Accepted: 05/01/2023] [Indexed: 05/16/2023]
Abstract
OBJECTIVE To compare the effects of levonorgestrel-intrauterine system (LNG-IUS) with or without oral megestrol acetate (MA) versus MA alone on fertility-preserving treatment in patients with atypical endometrial hyperplasia (AEH). METHODS This was a single-center phase II study with an open-label, randomized, controlled trial conducted between July 2017 and June 2020 at the Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China. A total of 180 patients (18-45 years) with primary AEH were randomly assigned (1:1:1) to the MA (N = 60), LNG-IUS (N = 60), or MA + LNG-IUS (N = 60) groups, in which the patients received MA (160 mg orally daily), LNG-IUS, or MA + LNG-IUS (MA 160 mg orally daily plus LNG-IUS), respectively. The primary endpoint was complete response (CR) rate at 16 weeks of treatment. The secondary endpoints were CR rate at 32 weeks of treatment, adverse events, and recurrence and pregnancy rates. All analyses were conducted in a modified intention to treat (ITT) population who underwent randomization and in whom treatment was initiated. RESULTS The Kaplan-Meier estimate of 16-week CR rates (with 95% confidence interval) were 19.2% (9.0-29.4%) in the MA group, 35.0% (22.8-47.2%) in the LNG-IUS group, and 29.4% (17.2-41.6%) in the MA + LNG-IUS groups. Side effects such as weight gain, increased nocturnal urine, night sweat, insomnia and edema face seemed to occur less frequently in LNG-IUS group compared with MA group. No difference was found among groups regarding second endpoints. CONCLUSIONS LNG-IUS or LNG-IUS plus MA did not show significant therapeutic benefit compared with MA alone. Further studies including sufficient sample-size are needed to validate these findings due to the underpowered design of this trial. FUNDING This study was supported by the National Key Research and Development Program of China (Grant No 2019YFC1005200 and 2019YFC1005204), Shanghai Medical Centre of Key Programs for Female Reproductive Diseases (Grant No. 2017ZZ010616), Shanghai sailing program (Grant No. 19YF1404200), and Shen Kang clinical project (SHDC22021219). Trial registrationClinicalTrials.govNCT03241888. https://www. CLINICALTRIALS gov/ct2/show/NCT03241888?term=NCT03241888&draw=2&rank=1.
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Affiliation(s)
- Zhiying Xu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Bingyi Yang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Weiwei Shan
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Jiongbo Liao
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Wenyu Shao
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Pengfei Wu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Shuang Zhou
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Chengcheng Ning
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Xuezhen Luo
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Qin Zhu
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Hongwei Zhang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Fenghua Ma
- Department of Radiology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Jun Guan
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China.
| | - Xiaojun Chen
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China.
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Ma X, Ren X, Ma F, Cai S, Ning C, Liu J, Chen X, Zhang G, Qiang J. Volumetric apparent diffusion coefficient (ADC) histogram metrics as imaging biomarkers for pretreatment predicting response to fertility-sparing treatment in patients with endometrial cancer. Gynecol Oncol 2022; 165:594-602. [PMID: 35469683 DOI: 10.1016/j.ygyno.2022.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To investigate the feasibility of volumetric apparent diffusion coefficient (ADC) histogram analysis for prediction of fertility-sparing treatment (FST) response in patients with endometrial cancer (EC). METHODS Pretreatment data of 54 EC patients with FST were retrospectively analyzed. Treatment response at each follow-up was pathologically evaluated. The associations of ADC histogram metrics (volume, minADC, maxADC, meanADC; 10th, 25th, 50th, 75th and 90th ADC percentiles; skewness; kurtosis) and baseline clinical characteristics with complete response (CR) at the second and third follow-ups, two-consecutive CR, and recurrence at the final follow-up were evaluated by uni- and multivariable logistic regression analysis. Receiver operating characteristic (ROC) curve analysis was used for diagnostic performance evaluation. RESULTS Compared with non-CR patients, CR patients had significantly higher minADC and 10th and 25th ADC percentiles at the second follow-up (P = 0.008, 0.039, and 0.034, respectively) and higher minADC, older age, lower HE4 level, and higher overweight rate at the third follow-up (P = 0.001, 0.040, 0.021, and 0.004, respectively). Patients with two-consecutive CR had a significantly higher minADC than those without (P = 0.018). There was no association between ADC metrics or clinical characteristics and recurrence (all P > 0.05). MinADC yielded the largest AUC in predicting CR (0.688 and 0.735 at the second and third follow-up, respectively) and the presence of two-consecutive CR (0.753). When combined with patient age and HE4 level, the prediction of CR could be further improved at the third follow-up, with an AUC of 0.786. CONCLUSION Pretreatment minADC could be a potential imaging biomarker for predicting FST response. Clinical characteristics may have incremental value to minADC in predicting CR.
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Affiliation(s)
- Xiaoliang Ma
- Department of Radiology, Jinshan Hospital, Fudan University, Longhang Road, Shanghai, People's Republic of China
| | - Xiaojun Ren
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shenyang Road, Shanghai, People's Republic of China
| | - Fenghua Ma
- Department of Radiology, Obstetrics and Gynecology Hospital, Fudan University, Shenyang Road, Shanghai, People's Republic of China
| | - Shulei Cai
- Department of Radiology, Obstetrics and Gynecology Hospital, Fudan University, Shenyang Road, Shanghai, People's Republic of China
| | - Chengcheng Ning
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shenyang Road, Shanghai, People's Republic of China
| | - Jia Liu
- Department of Radiology, Obstetrics and Gynecology Hospital, Fudan University, Shenyang Road, Shanghai, People's Republic of China
| | - Xiaojun Chen
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shenyang Road, Shanghai, People's Republic of China
| | - Guofu Zhang
- Department of Radiology, Obstetrics and Gynecology Hospital, Fudan University, Shenyang Road, Shanghai, People's Republic of China.
| | - Jinwei Qiang
- Department of Radiology, Jinshan Hospital, Fudan University, Longhang Road, Shanghai, People's Republic of China.
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Zhang K, Liu Y, Zhang G, Wang X, Li Z, Shang Y, Ning C, Ji C, Cai X, Xia X, Qiao J, Meng Q. Molecular Characteristics and Potent Immunomodulatory Activity of Fasciola hepatica Cystatin. Korean J Parasitol 2022; 60:117-126. [PMID: 35500893 PMCID: PMC9058280 DOI: 10.3347/kjp.2022.60.2.117] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 03/10/2022] [Indexed: 11/23/2022]
Abstract
Cystatin, a cysteine protease inhibitor found in many parasites, plays important roles in immune evasion. This study analyzed the molecular characteristics of a cystatin from Fasciola hepatica (FhCystatin) and expressed recombinant FhCystatin (rFhcystatin) to investigate the immune modulatory effects on lipopolysaccharide-induced proliferation, migration, cytokine secretion, nitric oxide (NO) production, and apoptosis in mouse macrophages. The FhCystatin gene encoded 116 amino acids and contained a conserved cystatin-like domain. rFhCystatin significantly inhibited the activity of cathepsin B. rFhCystatin bound to the surface of mouse RAW264.7 cells, significantly inhibited cell proliferation and promoted apoptosis. Moreover, rFhCystatin inhibited the expression of cellular nitric oxide, interleukin-6, and tumor necrosis factor-α, and promoted the expression of transforming growth factor-β and interleukin-10. These results showed that FhCystatin played an important role in regulating the activity of mouse macrophages. Our findings provide new insights into mechanisms underlying the immune evasion and contribute to the exploration of potential targets for the development of new drug to control F. hepatica infection.
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Affiliation(s)
- Kai Zhang
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang, 832003,
China
| | - Yucheng Liu
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang, 832003,
China
| | - Guowu Zhang
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang, 832003,
China
| | - Xifeng Wang
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang, 832003,
China
| | - Zhiyuan Li
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang, 832003,
China
| | - Yunxia Shang
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang, 832003,
China
| | - Chengcheng Ning
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang, 832003,
China
| | - Chunhui Ji
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang, 832003,
China
| | - Xuepeng Cai
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, 730046,
China
| | - Xianzhu Xia
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang, 832003,
China
| | - Jun Qiao
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang, 832003,
China
| | - Qingling Meng
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang, 832003,
China
- Corresponding author ()
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Wang X, Zhao C, Zhang G, Zhang K, Li Z, Shang Y, Ning C, Ji C, Xia X, Cai X, Qiao J, Meng Q. Molecular characterization of a novel GSTO2 of Fasciola hepatica and its roles in modulating murine macrophages. Parasite 2022; 29:16. [PMID: 35315767 PMCID: PMC8939299 DOI: 10.1051/parasite/2022016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/28/2022] [Indexed: 11/25/2022] Open
Abstract
Fascioliasis is an important zoonotic helminthic disease caused by Fasciola hepatica and poses a serious threat to global public health. To evade the immune response of its host (humans or animals), F. hepatica secretes various antioxidant enzymes such as glutathione transferase (GST) to facilitate its invasion, migration and parasitism in vivo. To investigate the biological functions of a novel omega-class GST (GSTO), the molecular features of GSTO2 of F. hepatica were analyzed by online software, and the biochemical properties in vitro of recombinant GSTO2 (rGSTO2) were dissected. Then, the regulatory roles of rGSTO2 protein in murine macrophages in vitro were further explored. The results revealed that the GSTO2 gene encodes 254 amino acids, which harbor the characteristic N-terminal domain (βαβαββα) and C-terminal domain (α-helical) of the cytoplasmic GST superfamily. GSTO2 was mainly expressed in F. hepatica vitelline follicles, intestinal tract, excretory pores and vitelline cells, with thioltransferase and dehydroascorbate reductase activities. Moreover, rGSTO2 protein could be taken up by murine macrophages and significantly inhibit the viability of macrophages. In addition, rGSTO2 protein could significantly promote apoptosis and modulate the expression of cytokines in macrophages. These findings suggested that F. hepatica GSTO2 plays an important role in modulating the physiological functions of macrophages, whereby this protein might be involved in immunomodulatory and anti-inflammatory roles during infection. This study provided new insights into the immune-evasion mechanism of F. hepatica and may contribute to the development of a potential anti-inflammatory agent.
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Affiliation(s)
- Xifeng Wang
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Chunguang Zhao
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Guowu Zhang
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Kai Zhang
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Zhiyuan Li
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Yunxia Shang
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Chengcheng Ning
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Chunhui Ji
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Xianzhu Xia
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Xuepeng Cai
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
| | - Jun Qiao
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Qingling Meng
- College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 832003, China
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Ma Z, Li NA, Ning C, Liu Y, Guo Y, Ji C, Zhu X, Meng Q, Xia X, Zhang X, Cai X, Cai K, Jun Q. A Novel LysR Family Factor STM0859 is Associated with The Responses of Salmonella Typhimurium to Environmental Stress and Biofilm Formation. Pol J Microbiol 2022; 70:479-487. [PMID: 35003279 PMCID: PMC8702606 DOI: 10.33073/pjm-2021-045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 11/04/2021] [Indexed: 12/01/2022] Open
Abstract
Salmonella enterica subsp. enterica serovar Typhimurium (ST) is an intracellularly parasitic bacterium. This zoonotic pathogen causes food poisoning and thus imposes a severe threat to food safety. Here, to understand the regulatory roles of the novel transcription factor STM0859 on the response of ST to environmental stress and biofilm formation, the STM0859 gene-deficient strain and the complementation strain ΔSTM0859/STM0859 were generated, respectively. Then, its capacity of responding to environmental stresses and biofilm (BF) formation ability under different stresses, including acid, alkali, high salt, cholate, and oxidative stresses was tested. We further analyzed the interaction between the STM0859 protein and the promoter of the acid stress response-related gene rcsB by performing an electrophoresis mobility shift assay (EMSA). The results showed that acid resistance and BF formation capacities of ST-ΔSTM0859 strain were significantly weaker, as compared with those of Salmonella Typhimurium SL1344 (ST-SL1344) wild strain (p < 0.01). Quantitative qRT-PCR analysis showed that the expression levels of acid stress and BF formation-related genes, rcsB and rpoS, of ST-ΔSTM0859 strain were significantly reduced at the transcription levels, while the transcription levels of these genes were fully restored in complementation strain ST-ΔSTM0859/STM0859. The results of EMSA showed that STM0859 was capable of binding the promoter DNA fragments of the rcsB gene, suggesting that STM0859 can promote the transcription of the rcsB gene through interaction with its promoter, thereby exerting an indirectly regulatory role on the adaptive responses to acid stress and BF formation of ST. This study provided new insights into the regulatory mechanisms of the LysR family factors on the tolerances of ST under adverse environmental stresses.
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Affiliation(s)
- Zhongmei Ma
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - N A Li
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Chengcheng Ning
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Yucheng Liu
- Institute of Animal Science and Veterinary Research, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, China
| | - Yun Guo
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Chunhui Ji
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Xiaozhen Zhu
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Qingling Meng
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Xianzhu Xia
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Xingxing Zhang
- Institute of Animal Science and Veterinary Research, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, China
| | - Xuepeng Cai
- State Key Lab of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Kuojun Cai
- Center for Animal Disease Prevention and Control, Urumqi, China
| | - Qiao Jun
- College of Animal Science and Technology, Shihezi University, Shihezi, China
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Ge YC, Zhan RC, Wang L, Ning C, Du Y, Li J, Tian Y, Wang WY. [Characteristics of genotype of monogenic nephrolithiasis in Chinese pediatric patients with nephrolithiasis]. Zhonghua Yi Xue Za Zhi 2021; 101:3115-3120. [PMID: 34674420 DOI: 10.3760/cma.j.cn112137-20210210-00404] [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 genotype characteristics of children with monogenic nephrolithiasis. Methods: The clinical data and genetic test results of 56 children with monogenic nephrolithiasis diagnosed and treated in Beijing Friendship Hospital, Capital Medical University from January 2016 to December 2020 were analyzed retrospectively. All pediatric patients were diagnosed by whole exome sequencing, and the genotype characteristics of the children were analyzed. Results: Among 56 children with monogenic nephrolithiasis, there were 39 males and 17 females, with an average age of 4 years (range, 5 months to 14 years). A total of 11 genes were found to have mutations, including 7 autosomal recessive genes, 1 X-linked recessive gene, and 3 genes with both recessive and dominant, of which HOGA1 gene mutation was the most common (16 cases, 28.6%), followed by AGXT gene (15 cases, 26.8%), SLC3A1 gene (6 cases, 10.7%), SLC7A9 gene (5 cases, 8.9%) and GRHPR gene (5 cases, 8.9%). The mutation types included nonsense mutations, frameshift mutations and splicing mutations, with 14 novel mutations. Genes such as AGXT, GRHPR and HOGA1 have hotspot mutations or hotspot mutation regions, which are c. 815-816 insGA and c. 33dupC mutation, c.864-865delTG mutation and c. 834-834+1 mutation region; SLC3A1 and SLC7A9 genes had 9 novel mutations, but no hotspot mutation or hotspot regions were found. Conclusion: Monogenic nephrolithiasis is rare and mostly autosomal recessive in Chinese children, with mutations in the causative genes HOGA1, AGXT, SLC3A1,SLC7A9 and GRHPR. AGXT, GRHPR and HOGA1 genes have hotspot mutations or hotspot mutation regions, and mutations may have ethnic differences.
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Affiliation(s)
- Y C Ge
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - R C Zhan
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - L Wang
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - C Ning
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Y Du
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - J Li
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Y Tian
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - W Y Wang
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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Li J, Li N, Ning C, Guo Y, Ji C, Zhu X, Zhang X, Meng Q, Shang Y, Xiao C, Xia X, Cai X, Qiao J. sRNA STnc150 is involved in virulence regulation of Salmonella Typhimurium by targeting fimA mRNA. FEMS Microbiol Lett 2021; 368:6372905. [PMID: 34543394 DOI: 10.1093/femsle/fnab124] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 04/14/2021] [Accepted: 09/15/2021] [Indexed: 12/30/2022] Open
Abstract
Small RNAs (sRNAs) are essential virulent regulators in Salmonella typhimurium (STM). To explore the role of sRNA STnc150 in regulating STM virulence, we constructed a STnc150 deletion strain (ΔSTnc150) and its complementary strain (ΔSTnc150/C). Then, we compared their characteristics to their original parent strain experimentally, identified the target genes of STnc150 and determined the expression levels of target genes. The results showed that the ΔSTnc150 strain exhibited delayed biofilm formation, enhanced adhesion to macrophages, significantly reduced LD50, increased liver and spleen viral loads and more vital pathological damaging ability than its parent and complementary strains. Further, bioinformatics combined with the bacterial dual plasmid reporter system confirmed that the bases 72-88 of STnc150 locating at the secondary stem-loop structure of the STnc150 are complementary with the bases 1-19 in the 5'-terminal of fimA mRNA of the type 1 fimbriae subunit. Western blot analysis showed that fimA protein level was increased in STnc150 strain compared with its parent and complementary strains. Together, this study suggested that STnc150 can down-regulate STM fimA expression at the translation level, which provided insights into the regulatory mechanisms of sRNAs in virulence of STM.
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Affiliation(s)
- Jing Li
- College of Animal Science and Technology, Shihezi University, North Street No. 4, Shihezi, Xinjiang 832003, China
| | - Na Li
- College of Animal Science and Technology, Shihezi University, North Street No. 4, Shihezi, Xinjiang 832003, China
| | - Chengcheng Ning
- College of Animal Science and Technology, Shihezi University, North Street No. 4, Shihezi, Xinjiang 832003, China
| | - Yun Guo
- College of Animal Science and Technology, Shihezi University, North Street No. 4, Shihezi, Xinjiang 832003, China
| | - Chunhui Ji
- College of Animal Science and Technology, Shihezi University, North Street No. 4, Shihezi, Xinjiang 832003, China
| | - Xiaozhen Zhu
- College of Animal Science and Technology, Shihezi University, North Street No. 4, Shihezi, Xinjiang 832003, China
| | - Xingxing Zhang
- Institute of Animal Science and Veterinary Research, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, Xinjiang 832000, China
| | - Qingling Meng
- College of Animal Science and Technology, Shihezi University, North Street No. 4, Shihezi, Xinjiang 832003, China
| | - Yunxia Shang
- College of Animal Science and Technology, Shihezi University, North Street No. 4, Shihezi, Xinjiang 832003, China
| | - Chencheng Xiao
- College of Animal Science and Technology, Shihezi University, North Street No. 4, Shihezi, Xinjiang 832003, China
| | - Xianzhu Xia
- College of Animal Science and Technology, Shihezi University, North Street No. 4, Shihezi, Xinjiang 832003, China
| | - Xuepeng Cai
- State Key Lab of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
| | - Jun Qiao
- College of Animal Science and Technology, Shihezi University, North Street No. 4, Shihezi, Xinjiang 832003, China
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9
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Meng Q, Ning C, Wang L, Ren Y, Li J, Xiao C, Li Y, Li Z, He Z, Cai X, Qiao J. Molecular detection and genetic diversity of bovine papillomavirus in dairy cows in Xinjiang, China. J Vet Sci 2021; 22:e50. [PMID: 34170091 PMCID: PMC8318792 DOI: 10.4142/jvs.2021.22.e50] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 03/29/2021] [Accepted: 04/07/2021] [Indexed: 01/25/2023] Open
Abstract
Background Bovine papillomatosis is a type of proliferative tumor disease of skin and mucosae caused by bovine papillomavirus (BPV). As a transboundary and emerging disease in cattle, it poses a potential threat to the dairy industry. Objectives The aim of this study is to detect and clarify the genetic diversity of BPV circulating in dairy cows in Xinjiang, China. Methods 122 papilloma skin lesions from 8 intensive dairy farms located in different regions of Xinjiang, China were detected by polymerase chain reaction. The genetic evolution relationships of various types of BPVs were analyzed by examining this phylogenetic tree. Results Ten genotypes of BPV (BPV1, BPV2, BPV3, BPV6, BPV7, BPV8, BPV10, BPV11, BPV13, and BPV14) were detected and identified in dairy cows. These were the first reported detections of BPV13 and BPV14 in Xinjiang, Mixed infections were detected, and there were geographical differences in the distribution of the BPV genotypes. Notably, the BPV infection rate among young cattle (< 1-year-old) developed from the same supply of frozen sperm was higher than that of the other young cows naturally raised under the same environmental conditions. Conclusions Genotyping based on the L1 gene of BPV showed that BPVs circulating in Xinjiang China displayed substantial genetic diversity. This study provided valuable data at the molecular epidemiology level, which is conducive to developing deep insights into the genetic diversity and pathogenic characteristics of BPVs in dairy cows.
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Affiliation(s)
- Qingling Meng
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Chengcheng Ning
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Lixia Wang
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Yan Ren
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi 830052, China
| | - Jie Li
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Chencheng Xiao
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Yanfang Li
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Zhiyuan Li
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Zhihao He
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Xuepeng Cai
- State Key Lab of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
| | - Jun Qiao
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China.
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10
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Ning C, Zhang L, Zhao C, Chen X, Liu X, Gu C. Clinical and reproductive outcomes of uterine smooth muscle tumor of uncertain malignant potential: a single-center retrospective study. J Int Med Res 2021; 49:3000605211008065. [PMID: 33884911 PMCID: PMC8074534 DOI: 10.1177/03000605211008065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE To evaluate the clinical outcomes, histopathological features, and obstetric and oncological outcomes of uterine smooth muscle tumor of uncertain malignant potential (STUMP). METHODS We conducted a single-center, database review of patients with STUMP between January 2001 and December 2015. We investigated the clinical, operative, histopathologic, recurrence, and fertility outcomes of the included cases. RESULTS Nineteen patients with STUMP were studied. Three were reclassified as sarcoma after slide review, and 16 patients were finally included in the study. The mean age was 45 years. Ki-67 expression was ≥10% in 25.0% of cases and 30% in the only recurrent case. Recurrence occurred 52 months after a diagnosis of STUMP in a 56-year-old female patient who underwent hysterectomy. Two of six patients who underwent myomectomy had fertility requirements, and both successfully delivered babies without recurrence. Recurrence was not related to mitosis, degree of atypia, or necrosis. There was also no relationship between type of surgery or surgical approach and recurrence. CONCLUSIONS Patients with STUMP warrant a pathological review process in centers with experience. Fertility-preservation is worth attempting, but young patients must be followed-up closely. Ki-67 might be a valuable marker predicting recurrence.
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Affiliation(s)
- Chengcheng Ning
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Lihong Zhang
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Chenyan Zhao
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Xiaojun Chen
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Xiaoxia Liu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Chao Gu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
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11
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Xu X, Lin H, Chen X, Zhu B, Shen W, Ning C, Qiao X, Xu X, Shi R, Liu X, Wong FY, He N, Ding Y. Differences in hypertension and prehypertension among people living with and without HIV in China: role of HIV infection and antiretroviral therapy. HIV Med 2021; 22:409-417. [PMID: 33421323 DOI: 10.1111/hiv.13040] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/26/2020] [Indexed: 11/27/2022]
Abstract
OBJECTIVES Hypertension is a growing health concern in people living with HIV (PLWH). However, association between HIV infection and hypertension is equivocal. METHODS In all, 1472 PLWH and 2944 HIV-negative individuals frequency-matched by age and sex were derived from the baseline survey of Comparative HIV and Aging Research in Taizhou (CHART), China. Prehypertension was defined as systolic blood pressure (BP) of 120-139 mmHg and/or diastolic blood pressure of 80-89 mmHg. RESULTS Despite the fact that prevalence of hypertension was overall lower among PLWH than among HIV-negative people (21.1% vs. 29.1%, P < 0.001), it was similar at ages 18-29 (7.6% vs. 8.5%) and 30-44 years (17.1% vs. 18.5%) but significantly lower in PLWH at ages 45-59 (26.1% vs. 40.7%) and 60-75 years (37.1% vs. 57.3%). Prehypertension prevalence was consistently higher in PLWH across all age groups. In the model adjusting for traditional risk factors, HIV infection was associated with hypertension (adjusted odds ratio [aOR] = 1.27, 95% confidence interval: 1.04-1.55) and prehypertension (aOR = 1.77, 95% CI: 1.51-2.08), and attenuated after additional adjustment for abdominal obesity. Age-stratified analysis showed that these associations of HIV with hypertension were observed at ages 18-29 and 30-44 years and associations with prehypertension were observed at ages 18-29, 30-44 and 45-59 years only. Years since HIV diagnosis and stavudine use were the HIV-specific factors independently associated with hypertension or/and prehypertension. CONCLUSIONS HIV infection is independently associated with prehypertension and hypertension especially at younger ages, and this risk may increase as treatment becomes prolonged. Our findings reinforce the urgent necessity for active BP screening and control strategies be adopted for PLWH in China.
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Affiliation(s)
- X Xu
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - H Lin
- Taizhou City Center for Disease Control and Prevention, Taizhou City, Zhejiang Province, China
| | - X Chen
- Taizhou City Center for Disease Control and Prevention, Taizhou City, Zhejiang Province, China
| | - B Zhu
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - W Shen
- Taizhou City Center for Disease Control and Prevention, Taizhou City, Zhejiang Province, China
| | - C Ning
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - X Qiao
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - X Xu
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - R Shi
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - X Liu
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - F Y Wong
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China.,Center for Population Sciences and Health Equity (C-PSHE), Florida State University, Tallahassee, FL, USA.,Department of Psychology, University of Hawai`i at Mānoa, Honolulu, HI, USA
| | - N He
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China.,Key Laboratory of Health Technology Assessment of Ministry of Health, Fudan University, Shanghai, China
| | - Y Ding
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
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12
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Sun YL, Dong JF, Ning C, Ding PP, Huang LQ, Sun JG, Wang CZ. An odorant receptor mediates the attractiveness of cis-jasmone to Campoletis chlorideae, the endoparasitoid of Helicoverpa armigera. Insect Mol Biol 2019; 28:23-34. [PMID: 30058747 DOI: 10.1111/imb.12523] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Parasitic wasps rely on olfaction to locate their hosts in complex chemical environments. Odorant receptors (ORs) function together with well-conserved odorant coreceptors (ORcos) to determine the sensitivity and specificity of olfactory reception. Campoletis chlorideae (Hymenoptera: Ichneunmonidae) is a solitary larval endoparasitoid of the cotton bollworm, Helicoverpa armigera, and some other noctuid species. To understand the molecular basis of C. chlorideae's olfactory reception, we sequenced the transcriptome of adult male and female heads (including antennae) and identified 211 OR transcripts, with 95 being putatively full length. The tissue expression profiles, as assessed by reverse-transcription PCR, showed that seven ORs were expressed only or more highly in female antennae. Their functions were analysed using the Xenopu slaevis oocyte expression system and two-electrode voltage-clamp recordings. CchlOR62 was tuned to cis-jasmone, which was attractive to female C. chlorideae adults and H. armigera larvae in the subsequent behavioural assays. Further bioassays using caged plants showed that the parasitism rate of H. armigera larvae by C. chlorideae on cis-jasmone-treated tobacco plants was higher than on the control plants. Thus, cis-jasmone appears to be an important infochemical involved in the interactions of plants, H. armigera and C. chlorideae, and CchlOR62 mediates the attractiveness of cis-jasmone to C. chlorideae.
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Affiliation(s)
- Y-L Sun
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - J-F Dong
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Forestry College, Henan University of Science and Technology, Luoyang, Henan Province, China
| | - C Ning
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - P-P Ding
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - L-Q Huang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - J-G Sun
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Biology and Food Engineering College, Anyang Institute of Technology, Anyang, Henan Province, China
| | - C-Z Wang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
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13
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Lv Q, Xie L, Cheng Y, Shi Y, Shan W, Ning C, Xie B, Yang B, Luo X, He Q, Zhu Q, Zhang Y, Zhang Z, Wang C, Chen X, Xu C. A20-mediated deubiquitination of ERα in the microenvironment of CD163+ macrophages sensitizes endometrial cancer cells to estrogen. Cancer Lett 2019; 442:137-147. [DOI: 10.1016/j.canlet.2018.10.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/25/2018] [Accepted: 10/19/2018] [Indexed: 02/04/2023]
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14
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Yang B, Xu Y, Zhu Q, Xie L, Shan W, Ning C, Xie B, Shi Y, Luo X, Zhang H, Chen X. Treatment efficiency of comprehensive hysteroscopic evaluation and lesion resection combined with progestin therapy in young women with endometrial atypical hyperplasia and endometrial cancer. Gynecol Oncol 2019; 153:55-62. [PMID: 30674421 DOI: 10.1016/j.ygyno.2019.01.014] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 01/02/2019] [Accepted: 01/13/2019] [Indexed: 01/05/2023]
Abstract
OBJECTIVE This study aimed to evaluate the efficacy of comprehensive hysteroscopic evaluation and lesion resection combined with progestin therapy in young patients with endometrial atypical hyperplasia (EAH) and early stage endometrial cancer (EEC) who wished to preserve their fertility. METHODS Patients with EAH (n = 120) or well-differentiated EEC (n = 40, FIGO stage IA, without myometrial invasion) were retrospectively included. All patients received constant oral progestin combined with hysteroscopic evaluation every 3 months until achieving complete response (CR). The location, number and size of each suspected lesion or cluster were detailly recorded during the hysteroscopy. RESULTS The median age was 32.0 year-old (range, 22-47 year-old). Totally 148 patients (97.4%) achieved CR while 3 EAH and 1 EEC patients presented with disease progression, and 8 patients were still in treatment. The mean treatment duration for achieving CR was 6.7 ± 0.3 months (range, 1-18 months). After adjusting for patient age, body mass index (BMI), history of pregnancy and type of conservative therapies, lesion size ≤2 cm (OR, 0.701; 95% CI, 0.496-0.991; P = 0.045) was significantly correlated with shorter treatment time to achieve CR. Among 60 patients attempted to conceive after achieving CR, 45.0% (15/60) had been pregnant, 25.0% (15/60) delivered live birth, 13.3% (8/60) are still in pregnancy, while 6.7% experienced spontaneous abortion. CONCLUSION Comprehensive hysteroscopic evaluation and lesion resection plus progestin therapy seem to be an effective and safe fertility sparing therapy for patients with EAH or EEC. Endometrial lesion size ≤2 cm correlated with a shorter treatment period to achieve CR.
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Affiliation(s)
- Bingyi Yang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Yuhui Xu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Qin Zhu
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Liying Xie
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Weiwei Shan
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Chengcheng Ning
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Bingying Xie
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Yue Shi
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Xuezhen Luo
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Hongwei Zhang
- Department of Cervical Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China.
| | - Xiaojun Chen
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China.
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15
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Kang H, Ning C, Zhou L, Zhang S, Yan Q, Liu JF. Short communication: Single-step genomic evaluation of milk production traits using multiple-trait random regression model in Chinese Holsteins. J Dairy Sci 2018; 101:11143-11149. [DOI: 10.3168/jds.2018-15090] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 08/14/2018] [Indexed: 12/31/2022]
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16
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Shan W, Shi Y, Zhu Q, Yang B, Xie L, Li B, Ning C, Lv Q, Cheng Y, Xie B, Bai M, Xu Y, Chen X, Luo X. Five cases of uterine perivascular epithelioid cell tumors (PEComas) and review of literature. Arch Gynecol Obstet 2018; 299:185-190. [PMID: 30317387 DOI: 10.1007/s00404-018-4920-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 11/30/2017] [Accepted: 09/27/2018] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Perivascular epithelioid cell tumor (PEComa) is a rare condition and the recognition of this condition is limited. Here we report five cases of uterine PEComa to add to the limited understanding of this rare condition. METHODS Five cases from Obstetrics and Gynecology Hospital of Fudan University were diagnosed as uterine PEComas. We collected the patients' clinical and pathological data as well as their outcomes. RESULTS All the five cases were diagnosed post-operationally. Fertility-sparing surgery was done for the first case and had a mass resection only. She delivered a healthy boy through the cesarean section in November 2016 and neither recurrence nor metastasis was found for 71 months. Hysterectomy was done for the other four cases. Adjuvant chemotherapy was also given for case 2 and case 4. Case 2 had combined endometrial cancer, which could be associated with tuberous sclerosis complex (TSC). She was followed up for 22 months and neither recurrence nor metastasis was detected. Neither recurrence nor metastasis was found in case 3 for 33 months. However, the patient in case 4 died of multiple dissemination and multiple organs failures, 10 months after the second surgery. The patient in case 5 had the hysterectomy and left adnexal resection and in this case we had no data about her long-term outcomes. CONCLUSION It is still challenging to detect and diagnose uterine PEComa clinically and no consensus or guidelines have been established regarding the treatment of this condition. More case studies are needed to enlighten the underlying mechanism and help optimize the therapies for this condition.
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Affiliation(s)
- Weiwei Shan
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Yue Shi
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Qin Zhu
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China.,Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200011, People's Republic of China
| | - Bingyi Yang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Liying Xie
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Bing Li
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Chengcheng Ning
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Qiaoying Lv
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Yali Cheng
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Bingying Xie
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Mingzhu Bai
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Yuhui Xu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Xiaojun Chen
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China. .,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China.
| | - Xuezhen Luo
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Road, Huangpu District, Shanghai, 200011, People's Republic of China. .,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China.
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17
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Zheng X, Ning C, Zhao P, Feng W, Jin Y, Zhou L, Yu Y, Liu J. Integrated analysis of long noncoding RNA and mRNA expression profiles reveals the potential role of long noncoding RNA in different bovine lactation stages. J Dairy Sci 2018; 101:11061-11073. [PMID: 30268606 DOI: 10.3168/jds.2018-14900] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [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: 04/09/2018] [Accepted: 08/20/2018] [Indexed: 12/12/2022]
Abstract
Long noncoding RNA (lncRNA) play a critical role in mammary development and breast cancer biology. Despite their important role in the mammary gland, little is known of the roles of lncRNA in bovine lactation, particularly regarding the molecular processes underlying it. To characterize the role of lncRNA in bovine lactation, 4 samples of Holstein cow mammary gland tissue at peak and late lactation stages were examined after biopsy. We then profiled the transcriptome of the mammary gland using RNA sequencing technology. Further, functional lncRNA-mRNA coexpression pairs were constructed to infer the function of lncRNA using a generalized linear model, followed by gene ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. More than 1,000 putative lncRNA were identified, 117 of which were differentially expressed between peak and late lactation stages. Bovine lncRNA were shorter, with fewer exon numbers, and expressed at significantly lower levels than protein-coding genes. Seventy-two differentially expressed (DE) lncRNA were coexpressed with 340 different protein-coding genes. The KEGG pathway analysis showed that target mRNA for DE lncRNA were mainly related to lipid and glucose metabolism, including the peroxisome proliferator-activated receptors and 5' adenosine monophosphate-activated protein kinase signaling pathways. Further bioinformatics and integrative analyses revealed that 12 DE lncRNA potentially played important roles in bovine lactation. Our findings provide a valuable resource for future bovine transcriptome studies, facilitate the understanding of bovine lactation biology, and offer functional information for cattle lactation.
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Affiliation(s)
- X Zheng
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - C Ning
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - P Zhao
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - W Feng
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Y Jin
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - L Zhou
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Y Yu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - J Liu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
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Lv Q, Yang B, Ning C, Xie B, Nie G, Chen X, Chen Q. Hypoxia is involved in the reduction of HtrA3 in patients with endometrial hyperplasia and cancer. Biochem Biophys Res Commun 2018; 503:2918-2923. [PMID: 30139517 DOI: 10.1016/j.bbrc.2018.08.070] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 08/05/2018] [Accepted: 08/07/2018] [Indexed: 01/08/2023]
Abstract
Endometrial cancer (EC) has recently become a major gynecological cancer and endometrial hyperplasia increases the risk for developing EC. Previous studies have reported that human high temperature requirement factor A3 (HtrA3), a member of ATP independent serine proteases family, is involved in endometrial carcinogenesis. However, the underlying mechanism of HtrA3 function is unclear in endometrial hyperplasia and cancer. In this study, we investigated that HtrA3 expression was reduced in endometrial hyperplasia as well as EC. The circulating levels of HtrA3 were also significantly reduced in both atypical hyperplasia and EC. Whether hypoxia is involved in the reduction of HtrA3 in EC was further investigated. Immunohistochemistry (IHC) scores of Glut1 and HtrA3 in type 1 and type 2 EC tissues showed the inverse correlation. And hypoxic condition reduced the expression of HtrA3. Furthermore, silencing HtrA3 promoted EC cell migration. Our study demonstrated the reduced levels of HtrA3 in endometrial hyperplasia including atypical hyperplasia which is a premalignant condition; and as the degree of hypoxia increases in EC, HtrA3 eventually loses its expression. Hypoxia is responsible for the reduction of HtrA3 which in turn promotes EC progression. These findings suggested that HtrA3 is an important adaptor in hypoxic regions that drives endometrial cancer development.
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Affiliation(s)
- Qiaoying Lv
- Obstetrics and Gynecology Hospital of Fudan University, China
| | - Bingyi Yang
- Obstetrics and Gynecology Hospital of Fudan University, China
| | - Chengcheng Ning
- Obstetrics and Gynecology Hospital of Fudan University, China
| | - Bingying Xie
- Obstetrics and Gynecology Hospital of Fudan University, China
| | - Guiying Nie
- Centre for Reproductive Health, Hudson Institute of Medical Research, Clayton, VIC, Australia; Department of Molecular and Translational Sciences, Monash University, Clayton, VIC, Australia; Department of Biochemistry and Molecular Biology, Monash University, Australia
| | - Xiaojun Chen
- Obstetrics and Gynecology Hospital of Fudan University, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Fudan University, Shanghai, PR China.
| | - Qi Chen
- Obstetrics and Gynecology Hospital of Fudan University, China; Department of Obstetrics & Gynaecology, The University of Auckland, New Zealand.
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Xie B, Qian C, Yang B, Ning C, Yao X, Du Y, Shi Y, Luo X, Chen X. Risk Factors for Unsuccessful Office-Based Endometrial Biopsy: A Comparative Study of Office-Based Endometrial Biopsy (Pipelle) and Diagnostic Dilation and Curettage. J Minim Invasive Gynecol 2018; 25:724-729. [DOI: 10.1016/j.jmig.2017.11.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 11/17/2017] [Accepted: 11/27/2017] [Indexed: 11/29/2022]
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20
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Jiang J, Meng S, Huang S, Ruan Y, Lu X, Li JZ, Wu N, Huang J, Xie Z, Liang B, Deng J, Zhou B, Chen X, Ning C, Liao Y, Wei W, Lai J, Ye L, Wu F, Liang H. Effects of Talaromyces marneffei infection on mortality of HIV/AIDS patients in southern China: a retrospective cohort study. Clin Microbiol Infect 2018; 25:233-241. [PMID: 29698815 DOI: 10.1016/j.cmi.2018.04.018] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 04/17/2018] [Accepted: 04/18/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVE Talaromyces marneffei is an opportunistic infection with high morbidity among human immunodeficiency virus (HIV)/AIDS patients in Southeast Asia and southern China. Its effects on mortality in HIV/AIDS patients has not been clearly elucidated. METHODS We conducted a retrospective cohort study of hospitalized HIV-infected individuals at the Fourth People's Hospital of Nanning, Guangxi, China during 2012-2015. Kaplan-Meier analyses were used to calculate the cumulative mortality. Cox proportional hazard models and 1:1 propensity score matching (PSM) were used to evaluate the effects of T. marneffei infection on mortality of HIV/AIDS patients. RESULTS In total, 6791 HIV/AIDS patients were included, 1093 of them (16.1%) with documented T. marneffei co-infection. The mortality of T. marneffei-infected patients (25.0 per 100 person-months, 95% CI 21.5-26.7) was the highest among all AIDS-associated complications and was significantly higher than that of T. marneffei-uninfected HIV/AIDS patients (13.8 per 100 person-months, 95% CI 12.5-15.1; adjusted hazard ratio (AHR) 1.80, 95% CI 1.48-2.16). The results using PSM were similar (AHR 4.52 95% CI 2.43-8.42). The mortality of T. marneffei-infected patients was also significantly higher than that of patients without any complications. When stratified by demographic characteristics, T. marneffei infection has higher mortality risk in all stratifications. Co-infection with T. marneffei carries a higher mortality risk in patients at any CD4+ T-cell count. CONCLUSIONS Talaromyces marneffei infection is commonly found in hospitalized HIV/AIDS patients in southern China and was associated with a higher mortality rate than most HIV-associated complications. These results highlight the need for improved diagnosis, treatment and prevention of infection by this neglected fungal pathogen in southern China.
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Affiliation(s)
- J Jiang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - S Meng
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - S Huang
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - Y Ruan
- State Key Laboratory of Infectious Disease Prevention and Control (SKLID), Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Chinese Centre for Disease Control and Prevention (China CDC), Beijing, China
| | - X Lu
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - J Z Li
- Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA
| | - N Wu
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - J Huang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Z Xie
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - B Liang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - J Deng
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - B Zhou
- Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - X Chen
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - C Ning
- Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - Y Liao
- Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - W Wei
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - J Lai
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - L Ye
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China.
| | - F Wu
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China.
| | - H Liang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China.
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21
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Li J, Zhu Q, Yang B, Ning C, Liu X, Luo X, Chen X. Risk factors for ovarian involvement in young and premenopausal endometrioid endometrial cancer patients. Eur J Obstet Gynecol Reprod Biol 2018; 222:151-154. [PMID: 29408747 DOI: 10.1016/j.ejogrb.2018.01.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 01/21/2018] [Accepted: 01/25/2018] [Indexed: 11/18/2022]
Abstract
OBJECTIVE This study aimed to investigate the incidence of ovarian malignant involvement in young and premenopausal endometrioid endometrial cancer and study the possible risk factors. METHODS Premenopausal patients 45 years of age or younger with endometrioid endometrial cancer treated at the OB/GYN Hospital of Fudan University between 2009 and 2013 were identified. The incidence of ovarian malignant involvement in young and premenopausal endometrioid endometrial cancer patients were calculated and the possible risk factors were investigated. RESULTS A total of 144 younger (age ≤ 45, premenopausal) patients with endometrioid endometrial cancer were identified and coexisting malignant ovarian neoplasms were detected in 6 patients. Univariate analysis revealed that deeper myometrial invasion, positive lymphonode metastasis, positive LVSI, and high histologic grade (G2-G3) were associated with ovarian involvement in younger endometrial cancer patients. However, multivariate analysis revealed that only deep myometrial invasion was an independent risk factors for ovarian involvement (OR = 12.81, P = 0.046). CONCLUSION In conclusions, the incidence of coexisting ovarian malignant neoplasms in young and premenopausal patients with endometrioid endometrial cancer is low, and these findings may facilitate preoperative counseling of patients and decision making at the time of surgery.
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Affiliation(s)
- Jun Li
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Qin Zhu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Bingyi Yang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Chengcheng Ning
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Xiaoxia Liu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China.
| | - Xuezhen Luo
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China.
| | - Xiaojun Chen
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China.
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22
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Cheng Y, Lv Q, Xie B, Yang B, Shan W, Ning C, Li B, Xie L, Gu C, Luo X, Chen X, Zhu Q. Estrogen and high-fat diet induced alterations in C57BL/6 mice endometrial transcriptome profile. Endocr Connect 2018; 7:36-46. [PMID: 29133384 PMCID: PMC5744625 DOI: 10.1530/ec-17-0315] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 11/10/2017] [Indexed: 12/31/2022]
Abstract
Unopposed estrogen stimulation and insulin resistance are known to play important roles in endometrial cancer (EC), but the interaction between these two factors and how they contribute to endometrial lesions are not completely elucidated. To investigate the endometrial transcriptome profile and the associated molecular pathway alterations, we established an ovariectomized C57BL/6 mouse model treated with subcutaneous implantation of 17-β estradiol (E2) pellet and/or high-fat diet (HFD) for 12 weeks to mimic sustained estrogen stimulation and insulin resistance. Histomorphologically, we found that both E2 and E2 + HFD groups showed markedly enlarged uterus and increased number of endometrial glands. The endometrium samples were collected for microarray assay. GO and KEGG analysis showed that genes regulated by E2 and/or HFD are mainly responsible for immune response, inflammatory response and metabolic pathways. Further IPA analysis demonstrated that the acute phase response signaling, NF-κB signaling, leukocyte extravasation signaling, PPAR signaling and LXR/RXR activation pathways are mainly involved in the pathways above. In addition, the genes modulated reciprocally by E2 and/or HFD were also analyzed, and their crosstalk mainly focuses on enhancing one another's activity. The combination analysis of microarray data and TCGA database provided potential diagnostic or therapeutic targets for EC. Further validation was performed in mice endometrium and human EC cell lines. In conclusion, this study unraveled the endometrial transcriptome profile alterations affected by E2 and/or HFD that may disturb endometrial homeostasis and contribute to the development of endometrial hyperplasia.
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Affiliation(s)
- Yali Cheng
- Department of GynecologyObstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Qiaoying Lv
- Department of GynecologyObstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Bingying Xie
- Department of GynecologyObstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Bingyi Yang
- Department of GynecologyObstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Weiwei Shan
- Department of GynecologyObstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Chengcheng Ning
- Department of GynecologyObstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Bing Li
- Department of GynecologyObstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Liying Xie
- Department of GynecologyObstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Chao Gu
- Department of GynecologyObstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Xuezhen Luo
- Department of GynecologyObstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Xiaojun Chen
- Department of GynecologyObstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Qin Zhu
- Department of PathologyObstetrics and Gynecology, Hospital of Fudan University, Shanghai, China
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Yang B, Shan B, Xue X, Wang H, Shan W, Ning C, Zhou Q, Chen X, Luo X. Predicting Lymph Node Metastasis in Endometrial Cancer Using Serum CA125 Combined with Immunohistochemical Markers PR and Ki67, and a Comparison with Other Prediction Models. PLoS One 2016; 11:e0155145. [PMID: 27163153 PMCID: PMC4862644 DOI: 10.1371/journal.pone.0155145] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [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: 05/24/2015] [Accepted: 04/25/2016] [Indexed: 01/02/2023] Open
Abstract
We aimed to evaluate the value of immunohistochemical markers and serum CA125 in predicting the risk of lymph node metastasis (LNM) in women with endometrial cancer and to identify a low-risk group of LNM. The medical records of 370 patients with endometrial endometrioid adenocarcinoma who underwent surgical staging in the Obstetrics & Gynecology Hospital of Fudan University were collected and retrospectively reviewed. Immunohistochemical markers were screened. A model using serum cancer antigen 125 (CA125) level, the immunohistochemical markers progesterone receptor (PR) and Ki67 was created for prediction of LNM. A predicted probability of 4% among these patients was defined as low risk. The developed model was externally validated in 200 patients from Shanghai Cancer Center. The efficiency of the model was compared with three other reported prediction models. Patients with serum CA125 < 30.0 IU/mL, either or both of positive PR staining > 50% and Ki67 < 40% in cancer lesion were defined as low risk for LNM. The model showed good discrimination with an area under the receiver operating characteristic curve of 0.82. The model classified 61.9% (229/370) of patients as being at low risk for LNM. Among these 229 patients, 6 patients (2.6%) had LNM and the negative predictive value was 97.4% (223/229). The sensitivity and specificity of the model were 84.6% and 67.4% respectively. In the validation cohort, the model classified 59.5% (119/200) of patients as low-risk, 3 out of these 119 patients (2.5%) has LNM. Our model showed a predictive power similar to those of two previously reported prediction models. The prediction model using serum CA125 and the immunohistochemical markers PR and Ki67 is useful to predict patients with a low risk of LNM and has the potential to provide valuable guidance to clinicians in the treatment of patients with endometrioid endometrial cancer.
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Affiliation(s)
- Bingyi Yang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Boer Shan
- Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Xiaohong Xue
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Huaying Wang
- Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Weiwei Shan
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Chengcheng Ning
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Qiongjie Zhou
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Xiaojun Chen
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
- * E-mail: (XC); (XL)
| | - Xuezhen Luo
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
- * E-mail: (XC); (XL)
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24
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Jan Mohamed HJ, Loy SL, Taib MNM, Karim NA, Tan SY, Appukutty M, Razak NA, Thielecke F, Hopkins S, Ong MK, Ning C, Tee ES. Erratum to: 'Characteristics associated with the consumption of malted drinks among Malaysian primary school children: findings from the MyBreakfast study'. BMC Public Health 2016; 16:162. [PMID: 26883422 PMCID: PMC4755016 DOI: 10.1186/s12889-016-2745-2] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 01/19/2016] [Indexed: 11/24/2022] Open
Affiliation(s)
- Hamid Jan Jan Mohamed
- Nutrition Programme, School of Health Sciences, Universiti Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia.
| | - S L Loy
- KK Research Centre, KK Women's and Children's Hospital, Bukit Timah Road, Singapore, 229899, Singapore
| | - Mohd Nasir Mohd Taib
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor Darul Ehsan, Malaysia
| | - Norimah A Karim
- School of Healthcare Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abd Aziz, 50300, Kuala Lumpur, Malaysia
| | - S Y Tan
- Department of Nutrition and Dietetics, School of Health Sciences, International Medical University, No.126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - M Appukutty
- Sports Science Programme, Faculty of Sports Science and Recreation, Universiti Teknologi MARA, 40450, Shah Alam, Selangor Darul Ehsan, Malaysia
| | - Nurliyana Abdul Razak
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor Darul Ehsan, Malaysia
| | - F Thielecke
- Cereal Partners Worldwide, Chemin du Viaduc 1. Prilly, Lausanne, 1008, Switzerland.,Nestlé Research Center, Vers chez les Blanc, 1000, Lausanne, Switzerland
| | - S Hopkins
- Cereal Partners Worldwide, Chemin du Viaduc 1. Prilly, Lausanne, 1008, Switzerland
| | - M K Ong
- Nestlé R&D Center, 2655633, 29 Quality Road, 618802, Singapore, Singapore
| | - C Ning
- Nestlé R&D Center, 2655633, 29 Quality Road, 618802, Singapore, Singapore
| | - E S Tee
- Nutrition Society of Malaysia, c/o Division of Human Nutrition, Institute for Medical Research, Kuala Lumpur, Malaysia
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Ning C, Xie B, Zhang L, Li C, Shan W, Yang B, Luo X, Gu C, He Q, Jin H, Chen X, Zhang Z, Feng Y. Infiltrating Macrophages Induce ERα Expression through an IL17A-mediated Epigenetic Mechanism to Sensitize Endometrial Cancer Cells to Estrogen. Cancer Res 2016; 76:1354-66. [PMID: 26744532 DOI: 10.1158/0008-5472.can-15-1260] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 12/31/2015] [Indexed: 11/16/2022]
Abstract
Persistent unopposed estrogen stimulation is a central oncogenic mechanism driving the formation of type I endometrial cancer. Recent epidemiologic and clinical studies of endometrial cancer have also revealed a role for insulin resistance, clinically manifested by chronic inflammation. However, the role of inflammation in estrogen-driven endometrial cancer is not well characterized. In this study, we investigated the association between infiltrating macrophages and estrogen sensitivity in endometrial cancer. Evaluating tissue samples and serum from patients with precancerous lesions or endometrial cancer, we found that tissue macrophage infiltration, but not serum estradiol levels, correlated positively with endometrial cancer development. Furthermore, IL4/IL13-induced CD68(+)CD163(+) macrophages enhanced the proliferative effects of estradiol in endometrial cancer cells by upregulating estrogen receptor alpha (ERα), but not ERβ. Mechanistic investigations revealed that CD68(+)CD163(+) macrophages secreted cytokines, such as IL17A, that upregulated ERα expression through TET1-mediated epigenetic modulation of the ERα gene. Overall, our findings show how cytokines produced by infiltrating macrophages in the endometrial microenvironment can induce epigenetic upregulation of ERα expression, which in turn sensitizes endometrial cells to estrogen stimulation. The concept that inflammation-induced estrogen sensitivity in the endometrium acts as a driver of type I endometrial cancer has implications for infiltrating macrophages as a prognostic biomarker of progression in this disease setting.
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Affiliation(s)
- Chengcheng Ning
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P.R. China
| | - Bingying Xie
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P.R. China. Department of Obstetrics and Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Lin Zhang
- Ovarian Cancer Research Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Chunsheng Li
- Ovarian Cancer Research Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Weiwei Shan
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P.R. China
| | - Bingyi Yang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P.R. China
| | - Xuezhen Luo
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P.R. China
| | - Chao Gu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P.R. China
| | - Qizhi He
- Department of pathology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, P.R. China
| | - Hongyan Jin
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P.R. China
| | - Xiaojun Chen
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P.R. China.
| | - Zhenbo Zhang
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China.
| | - Youji Feng
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China
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Jan Mohamed HJB, Loy SL, Mohd Taib MN, Karim NA, Tan SY, Appukutty M, Abdul Razak N, Thielecke F, Hopkins S, Ong MK, Ning C, Tee ES. Characteristics associated with the consumption of malted drinks among Malaysian primary school children: findings from the MyBreakfast study. BMC Public Health 2015; 15:1322. [PMID: 26718818 PMCID: PMC4697324 DOI: 10.1186/s12889-015-2666-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 12/21/2015] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The consumption of beverages contributes to diet quality and overall nutrition. Studies on malted drinks, one of the widely consumed beverage choices among children in Asia, however, have received limited attention. This study aimed to examine the prevalence of malted drink consumption and explored associations of sociodemographic characteristics, nutrient intakes, weight status and physical activity levels with malted drink consumption among primary school children in Malaysia. METHODS Data for this analysis were from the MyBreakfast Study, a national cross-sectional study conducted from April to October 2013 throughout all regions in Malaysia. A total of 2065 primary school children aged 6 to 12 years were included in the present analysis. Data on two days 24-h dietary recall or record, anthropometry, physical activity and screen time were recorded. Associations between malted drink consumption and related factors were examined using binary logistic regression, adjusting for region, area, gender, ethnicity and household income. RESULTS Among children aged 6 to 12 years, 73.5% reported consuming malted drinks for at least once per week. Consumption of malted drinks was significantly associated with region (χ(2) = 45.64, p < 0.001), gender (χ(2) = 4.41, p = 0.036) and ethnicity (χ(2) = 13.74, p = 0.008). Malted drink consumers had similar total energy intake but higher micronutrient intakes compared to non-consumers. High physical activity level (OR = 1.77, 95% CI = 1.06, 2.99) and lower screen time during weekends (OR = 0.93, 95% CI = 0.86, 0.99) were independently associated with malted drink consumption among 6 to 9 year-old children, but not among 10 to 12 year-old children. No association was observed between malted drink consumption and weight status. CONCLUSIONS Malted drink consumption is prevalent among Malaysian primary school children, particularly higher among boys, indigenous children and those who lived in the East Coast region of Malaysia. Consuming malted drinks is associated with higher micronutrient intakes and higher levels of physical activity, but not with body weight status.
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Affiliation(s)
- Hamid Jan B Jan Mohamed
- Nutrition Programme, School of Health Sciences, Universiti Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia.
| | - S L Loy
- KK Research Centre, KK Women's and Children's Hospital, Bukit Timah Road, Singapore, 229899, Singapore.
| | - Mohd Nasir Mohd Taib
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia.
| | - Norimah A Karim
- School of Healthcare Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abd Aziz, 50300, Kuala Lumpur, Malaysia.
| | - S Y Tan
- Department of Nutrition and Dietetics, School of Health Sciences, International Medical University, No.126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia.
| | - M Appukutty
- Sports Science Programme, Faculty of Sports Science and Recreation, Universiti Teknologi MARA, 40450, Shah Alam, Selangor Darul Ehsan, Malaysia.
| | - Nurliyana Abdul Razak
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia.
| | - F Thielecke
- Cereal Partners Worldwide, Chemin du Viaduc 1. Prilly, Lausanne, 1008, Switzerland.
- Nestlé Research Center, Vers chez les Blanc, 1000 Lausanne, Lausanne, Switzerland.
| | - S Hopkins
- Cereal Partners Worldwide, Chemin du Viaduc 1. Prilly, Lausanne, 1008, Switzerland.
| | - M K Ong
- Nestlé R&D Center, 2655633, 29 Quality Road, 618802, Singapore, Singapore.
| | - C Ning
- Nestlé R&D Center, 2655633, 29 Quality Road, 618802, Singapore, Singapore.
| | - E S Tee
- Nutrition Society of Malaysia, c/o Division of Human Nutrition, Institute for Medical Research, Kuala Lumpur, Malaysia.
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Ak N, Koo HC, Jm HJ, Mt MN, Tan SY, Appukutty M, Ar N, Thielecke F, Hopkins S, Ong MK, Ning C, Tee ES. Correction: Whole Grain Intakes in the Diets Of Malaysian Children and Adolescents - Findings from the MyBreakfast Study. PLoS One 2015; 10:e0142763. [PMID: 26544201 PMCID: PMC4636181 DOI: 10.1371/journal.pone.0142763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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AK N, Koo HC, JM HJ, MT MN, Tan SY, Appukutty M, AR N, Thielecke F, Hopkins S, Ong MK, Ning C, Tee ES. Whole Grain Intakes in the Diets Of Malaysian Children and Adolescents--Findings from the MyBreakfast Study. PLoS One 2015; 10:e0138247. [PMID: 26473369 PMCID: PMC4608561 DOI: 10.1371/journal.pone.0138247] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 08/26/2015] [Indexed: 11/26/2022] Open
Abstract
Background Diets rich in whole grain are associated with several health benefits. Little is known however, about whole grain consumption patterns in Malaysia. The aim of this study was to assess whole grain intakes and dietary source in Malaysian children and adolescents. Methods This analysis is from the MyBreakfast study, a national cross sectional study investigating eating habits among primary and secondary school children throughout Malaysia, conducted in 2013. Children (n = 5,165) and adolescents (n = 2,947) who completed two days of dietary assessment using a food record or recall respectively were included. The whole grain content of foods was estimated mainly through the use of quantitative ingredient declarations on food labels. All wholegrain foods were considered irrespective of the amount of whole grain they contained. Results Overall, only 25% of children and 19% of adolescents were wholegrain consumers. Mean daily intakes in the total sample were 2.3g/d (SD 5.8g/d) in children and 1.7g/d (SD 4.7g/d) in adolescents and in the consumer’s only sample, mean intakes reached 9.1g/d (SD 8.6) and 9.2g/d (SD 7.1g/d) respectively. Wheat was the main grain source of whole grain while ready to eat breakfast cereals and hot cereals were the main food contributors. Less than 3% of the children and adolescents reached the US quantitative whole grain recommendation of 48g/day. Conclusion Whole grain is consumed by only a minority of Malaysian children and adolescents and even among consumers, intakes are well below recommendations. Efforts are needed to firstly understand the barriers to whole grain consumption among Malaysian children in order to design effective health promotion initiatives to promote an increase in whole grain consumption.
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Affiliation(s)
- Norimah AK
- School of Healthcare Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
- Nutrition Society of Malaysia, c/o Division of Human Nutrition, Institute for Medical Research, Kuala Lumpur, Malaysia
- * E-mail:
| | - H. C. Koo
- School of Healthcare Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
- Department of Health Professional and Food Service, Faculty of Health and Life Sciences, Management & Science University, Shah Alam, Malaysia
- Nutrition Society of Malaysia, c/o Division of Human Nutrition, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Hamid Jan JM
- Nutrition Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
- Nutrition Society of Malaysia, c/o Division of Human Nutrition, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Mohd Nasir MT
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Serdang, Universiti Putra Malaysia, Kembangan, Malaysia
- Nutrition Society of Malaysia, c/o Division of Human Nutrition, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - S. Y. Tan
- Department of Nutrition and Dietetics, School of Health Sciences, International Medical University, Kuala Lumpur, Malaysia
- Nutrition Society of Malaysia, c/o Division of Human Nutrition, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Mahendran Appukutty
- Sports Science Programme, Faculty of Sports Science and Recreation, Universiti Teknologi MARA, Shah Alam, Malaysia
- Nutrition Society of Malaysia, c/o Division of Human Nutrition, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Nurliyana AR
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Serdang, Universiti Putra Malaysia, Kembangan, Malaysia
- Nutrition Society of Malaysia, c/o Division of Human Nutrition, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Frank Thielecke
- Cereal Partners Worldwide, Lausanne, Switzerland
- Nestlé Research Center, Vers chez les Blanc, Lausanne, Switzerland
| | | | - M. K. Ong
- Nestle R&D Center, Singapore, Singapore
| | - C. Ning
- Nestle R&D Center, Singapore, Singapore
| | - E. S. Tee
- Nutrition Society of Malaysia, c/o Division of Human Nutrition, Institute for Medical Research, Kuala Lumpur, Malaysia
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Chen J, Bai M, Ning C, Xie B, Zhang J, Liao H, Xiong J, Tao X, Yan D, Xi X, Chen X, Yu Y, Bast RC, Zhang Z, Feng Y, Zheng W. Gankyrin facilitates follicle-stimulating hormone-driven ovarian cancer cell proliferation through the PI3K/AKT/HIF-1α/cyclin D1 pathway. Oncogene 2015; 35:2506-17. [PMID: 26364616 DOI: 10.1038/onc.2015.316] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 06/04/2015] [Accepted: 07/21/2015] [Indexed: 12/20/2022]
Abstract
Gankyrin is a regulatory subunit of the 26kD proteasome complex. As a novel oncoprotein, gankyrin is expressed aberrantly in cancers from several different sites and has been shown to contribute to oncogenesis in endometrial and cervical carcinomas. Neither gankyrin's contribution to the development of epithelial ovarian cancer nor its interaction with follicle-stimulating hormone (FSH)-driven proliferation in ovarian cancer has been studied. Here we have found that gankyrin is overexpressed in ovarian cancers compared with benign ovarian cystadenomas and that gankyrin regulates FSH upregulation of cyclin D1. Importantly, gankyrin regulates PI3K/AKT signaling by downregulating PTEN. Prolonged AKT activation by FSH stimulation of the FSH receptor (FSHR) promotes gankyrin expression, which, in turn, enhances AKT activation by inhibiting PTEN. Overexpression of gankyrin decreases hypoxia inducible factor-1α (HIF-1α) protein levels, but has little effect on HIF-1α mRNA levels, which could be attributed to gankyrin mediating HIF-1α protein stability via the ubiquitin-proteasome pathway. Reduction in HIF-1α protein stability led to attenuation of the binding with cyclin D1 promoter, resulted in abolishment of the negative regulation of cyclin D1 by HIF-1α, which promotes proliferation of ovarian cancer cells. Our results document that gankyrin regulates HIF-1α protein stability and cyclin D1 expression, ultimately mediating FSH-driven ovarian cancer cell proliferation.
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Affiliation(s)
- J Chen
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - M Bai
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - C Ning
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - B Xie
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - J Zhang
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - H Liao
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - J Xiong
- Department of Neuropathology, Huashan Hospital of Fudan University, Shanghai, China
| | - X Tao
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - D Yan
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - X Xi
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - X Chen
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Y Yu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,Department of Experimental Therapeutics, MD Anderson Cancer Center, The University of Texas, Houston, TX, USA
| | - R C Bast
- Department of Experimental Therapeutics, MD Anderson Cancer Center, The University of Texas, Houston, TX, USA
| | - Z Zhang
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Y Feng
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - W Zheng
- Department of Pathology, University of Arizona College of Medicine, Tucson, AZ, USA.,Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
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De Silva M, Ning C, Ghanbar S, Zhanel G, Logsetty S, Liu S, Kumar A. Evidence that a novel quaternary compound and its organic N-chloramine derivative do not select for resistant mutants of Pseudomonas aeruginosa. J Hosp Infect 2015; 91:53-8. [PMID: 26122622 DOI: 10.1016/j.jhin.2015.05.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 12/16/2014] [Accepted: 05/12/2015] [Indexed: 01/17/2023]
Abstract
BACKGROUND Pseudomonas aeruginosa is well known for causing hospital-acquired infections that are often difficult to treat because of its high intrinsic and acquired resistance to antibiotics. Resistance-nodulation-division (RND) efflux pumps are the major contributors to the intrinsic multidrug resistance (MDR) in this organism. Various biocides used in hospital settings have been shown to select for RND-pump-overexpressing mutants of P. aeruginosa that show cross-resistance to clinically relevant antibiotics. Therefore, finding biocides that do not select for multidrug-resistant mutants is important in controlling the spread of bacteria such as P. aeruginosa. AIM To evaluate the potential of a novel quaternary ammonium compound and its N-chloramine derivative in selecting for MDR mutants of P. aeruginosa. METHODS P. aeruginosa PA01 was cultured in the presence of increasing concentrations of the quaternary ammonium compound and its N-chloramine derivative respectively, and one mutant each selected. Susceptibility of the mutants to both compounds as well as antibiotics was tested. Susceptibility of P. aeruginosa strains with deletions in RND pumps was also tested for both compounds to determine whether they are a substrate of these pumps. Expression of mexB, mexD, and mexY genes in the mutants was analysed using quantitative reverse transcriptase-polymerase chain reaction to determine whether the compounds can select for pump-overexpressing mutants. FINDINGS We show that whereas both compounds can be pumped by the MexCD-OprJ pump, they neither select for mutants that overexpress RND pumps nor for mutants that display cross-resistance to antibiotics. CONCLUSION These compounds are promising candidates to be used as disinfectants in hospital settings.
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Affiliation(s)
- M De Silva
- Department of Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - C Ning
- Department of Textile Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - S Ghanbar
- Department of Chemistry, University of Manitoba, Winnipeg, MB, Canada
| | - G Zhanel
- Department of Medical Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - S Logsetty
- Department of Surgery, University of Manitoba, Winnipeg, MB, Canada
| | - S Liu
- Department of Textile Sciences, University of Manitoba, Winnipeg, MB, Canada; Department of Chemistry, University of Manitoba, Winnipeg, MB, Canada; Department of Medical Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - A Kumar
- Department of Microbiology, University of Manitoba, Winnipeg, MB, Canada; Department of Medical Microbiology, University of Manitoba, Winnipeg, MB, Canada.
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Wang H, Wang J, Sun S, Wang Y, Guo J, Ning C, Yang K, Liu JF. Identification of reference microRNAs for quantitative expression analysis in porcine peripheral blood mononuclear cells treated with polyinosinic-polycytidylic acid. Int J Immunogenet 2015; 42:217-25. [PMID: 25817599 DOI: 10.1111/iji.12198] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 03/02/2015] [Accepted: 03/08/2015] [Indexed: 11/29/2022]
Abstract
Peripheral blood mononuclear cells (PBMCs) are clinically important cells. Detection of microRNAs (miRNAs) expression in PBMCs can be useful for miRNA biomarker discovery for various diseases. Quantitative real-time PCR (qRT-PCR) has become an important method used for measuring miRNAs expression. However, the reliability of qRT-PCR data critically depends on proper selection of reference genes. Here, we performed qRT-PCR to quantify the expression levels of nine miRNAs (Ssc-miR-16, Hsa-miR-25, Ssc-miR-34a, Hsa-miR-93, Bta-miR-92b, Ssc-miR-103, Ssc-miR-106a, Ssc-miR-128 and Ssc-miR-107) and one small nuclear RNA (U6) in PBMCs treated with polyinosinic-polycytidylic acid [poly (I:C)] that widely used for simulating viral infection. We used the four statistical algorithms (GeNorm 3.5, NormFinder, BestKeeper and comparative ∆ Ct method) to evaluate gene expression stability and observed that Ssc-miR-34a was the best single reference gene and the pair of Ssc-miR-107 and Ssc-miR-103 was the best combination of reference miRNAs for porcine PBMCs treated with poly (I:C). Our study shows the first evidence of careful selection of reference miRNAs in porcine PBMCs and maybe helpful for discovering miRNA biomarkers for double-stranded RNA-induced disease.
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Affiliation(s)
- H Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - J Wang
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - S Sun
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Y Wang
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - J Guo
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - C Ning
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - K Yang
- College of Animal Science and Technology, Shanxi Agricultural University, Taigu, China
| | - J-F Liu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Shan W, Wang C, Zhang Z, Luo X, Ning C, Yu Y, Feng Y, Gu C, Chen X. ATM may be a protective factor in endometrial carcinogenesis with the progesterone pathway. Tumour Biol 2015; 36:1529-37. [DOI: 10.1007/s13277-014-2712-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 10/05/2014] [Indexed: 12/14/2022] Open
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Shan W, Wang C, Zhang Z, Gu C, Ning C, Luo X, Zhou Q, Chen X. Conservative therapy with metformin plus megestrol acetate for endometrial atypical hyperplasia. J Gynecol Oncol 2014; 25:214-20. [PMID: 25045434 PMCID: PMC4102740 DOI: 10.3802/jgo.2014.25.3.214] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 02/21/2014] [Accepted: 04/07/2014] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVE To compare the efficacy of metformin plus megestrol acetate (MA) with that of MA alone for treating endometrial atypical hyperplasia (EAH). METHODS This pilot study included 16 EAH patients who met at least one metabolic syndrome (MS) criterion and received either adjunctive metformin plus MA (MET group) or MA monotherapy (MA group). Each patient in the MA group received 160 mg of MA daily, whereas patients in the MET group received the same dose of MA plus 0.5 g of metformin thrice daily. Treatment response was assessed by histological examination of dilation and curettage specimens obtained after 12 weeks of therapy. RESULTS Each group had eight patients, and half of the patients in each group were diagnosed with MS. The complete response (CR) rate was 75% (6/8) in the MET group and 25% (2/8) in the MA group (p=0.105). Complications of MS did not affect the response rates in either group. In the MET group, 75% (3/4) of the patients had CR in the presence or absence of MS. In the MA group, 50% (2/4) of the patients with MS had CR, whereas no patient without MS had CR. No irreversible toxicities were observed. CONCLUSION Metformin plus MA may be a potential alternative therapy for treating EAH, and the MS status of patients may have no effect on the efficacy of metformin plus MA therapy.
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Affiliation(s)
- Weiwei Shan
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China. ; Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Chao Wang
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Zhenbo Zhang
- Department of Gynecology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Chao Gu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China. ; Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Chengcheng Ning
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China. ; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Xuezhen Luo
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China. ; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Qiongjie Zhou
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China. ; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Xiaojun Chen
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China. ; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
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Tippelt S, Mikasch R, Warmuth-Metz M, Pietsch T, Hilger RA, Kwiecien R, Faldum A, Rutkowski S, Bode U, Siegler N, Fleischhack G, Dufour C, Delisle MB, Geoffray A, Laplanche A, Frappaz D, Icher C, Bertozzi AI, Leblond P, Doz F, Andre N, Schneider P, De Carli E, Berger C, Lejars O, Chastagner P, Soler C, Entz-Werle N, Valteau-Couanet D, Burzynski S, Janicki T, Burzynski G, Marszalek A, Deiss A, Korshunov A, Capper D, Witt H, van Tilburg C, von Deimling A, Kulozik AE, Pfister SM, Witt O, Milde T, Dhall G, Haley K, Finlay J, Rushing T, Sposto R, Seeger R, Lulla RR, Goldman S, Beattie C, DasGupta TK, Pollack I, Fisher PG, Wu S, Boyett JM, Fouladi M, Meijer L, Veal G, Walker D, Grundy R, Meijer L, Veal G, Grundy R, Konczalik W, Ivanov D, Garnett M, Parker T, Kearns P, Walker D, Grundy R, Garnett M, Rahman R, Smith S, Meijer L, Walker D, Kimpo M, Yan B, Ning C, Villegas M, Alcasabas AP, Juh YE, Chong QT, Lin TP, Dewire M, Fouladi M, Drissi R, Chow L, Goldman S, Pai A, Leach J, Lane A, Backus L, Grimme L, Tabares J, Kumar S, Sobo M, Hummel TR, Alharbi M, Abdullah S, Alharbi Q, Alshahrani M, Mosleh O, Balbaid A, Alkofide A, Alkhayat N, AlFar K, Banyhamdan A, Ahmed O, El-Badawy S, Bouffet E, Jiang MW, Zhou RH, Zhou Q, Yuan XJ, Ma J, Turner D, Wright K, Broniscer A, Robinson G, Qaddoumi I, Armstrong G, Gajjar A, Stewart C, Misra SN, Misra AK, Michalski A, Stiller C. CLINICAL TRIALS. Neuro Oncol 2014; 16:i10-i13. [PMCID: PMC4046282 DOI: 10.1093/neuonc/nou066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2023] Open
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Shan W, Ning C, Luo X, Zhou Q, Gu C, Zhang Z, Chen X. Hyperinsulinemia is associated with endometrial hyperplasia and disordered proliferative endometrium: A prospective cross-sectional study. Gynecol Oncol 2014; 132:606-10. [DOI: 10.1016/j.ygyno.2014.01.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Revised: 12/29/2013] [Accepted: 01/05/2014] [Indexed: 01/13/2023]
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Salek MAA, Karlsson B, Yeo TT, Hanssens P, Ning C. Lethal intratumoral haemorrhages of brain metastases during radiosurgery: case reports and literature review. Acta Neurochir (Wien) 2013; 155:115-8. [PMID: 23053282 DOI: 10.1007/s00701-012-1507-x] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 09/14/2012] [Indexed: 11/29/2022]
Abstract
Gamma Knife surgery (GKS) is an effective and important treatment modality in the management of brain metastases. The short-term complication rate is low and the tumour control rate high. Complications caused by acute radiation-induced oedema are rare and usually benign. In this article, two cases of lethal haemorrhagic event immediately following GKS are described from two centres, which had prompted us to review the literature.
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Affiliation(s)
- M A A Salek
- Division of Neurosurgery, Department of Surgery, National University Hospital, 5 Lower Kent Ridge Road, Singapore, 110974, Singapore.
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Liu C, Wang W, Parchim NF, Irani RA, Ning C, Sun K, Kellems RE, Xia Y. OS057. Pathophysiological role of elevated tissue transglutaminase in autoantibody-induced features of preeclampsia in pregnant mice. Pregnancy Hypertens 2012; 2:208. [PMID: 26105271 DOI: 10.1016/j.preghy.2012.04.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Preeclampsia (PE) is highly associated with the presence of autoantibodies that activate the major angiotensin receptor, AT1R. These autoantibodies (termed AT1-AA) cause most features of PE when introduced into pregnant mice and are believed to contribute to disease pathogenesis. Tissue transglutaminase (tTG) is a prominent member of a family of enzymes that crosslink proteins by catalyzing the formation of an isopeptide bond between the amide group of glutamine and the free amino group of lysine and is believed to play a role in AT1R activation. OBJECTIVES To test the hypothesis that tTG plays a role in autoantibody-mediated AT1R activation and thereby contributes to the pathophyhsiology of PE. METHODS Western blotting was used to quantify tTG in placentas of normotensive pregnant women and those with PE. Immunohistochemistry was used to determine cellular localization of tTG, AT1R and glutamyl-lysine isopeptides in placenta tissue. Co-immunoprecipitation experiments were used to explore the possible association of tTG and AT1R. Finally, in an effort to determine the role of tTG in AT1-AA-induced features of PE in vivo, we treated autoantibody-injected pregnant mice with cystamine, a potent tTG inhibitor. RESULTS Western blot analysis showed elevated tTG in placentas of women with PE. Immunohistochemical analysis revealed that increased levels of tTG, glutamyl-lysineisopeptides, AT1R co-localized in the microvillous membrane of PE placentas. Immunoprecipitation of tTG from human trophoblast cell (HTR) lysates resulted in the co-immunoprecipitation of AT1R, thereby providing evidence for an interaction between tTG and AT1R in HTR cells. Finally, we found that cystamine treatment significantly attenuated key features associated with PE including hypertension and proteinuria in the PE-IgG-injected pregnant mice. CONCLUSION Taken together, we identified a previously unrecognized role of elevated tTG in PE likely by activating or stabilizing AT1Rs. These studies provide novel mechanisms of autoantibody-induced AT1R activation by elevated placental tTG, highlight the role of tTG in the pathogenesis of PE and suggest novel therapeutic strategies for the disease.
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Affiliation(s)
- C Liu
- Biochemistry and Molecular Biology, University of Texas Houston Medical School, Houston, United States
| | - W Wang
- Biochemistry and Molecular Biology, University of Texas Houston Medical School, Houston, United States
| | - N F Parchim
- Biochemistry and Molecular Biology, University of Texas Houston Medical School, Houston, United States
| | - R A Irani
- Biochemistry and Molecular Biology, University of Texas Houston Medical School, Houston, United States
| | - C Ning
- Biochemistry and Molecular Biology, University of Texas Houston Medical School, Houston, United States
| | - K Sun
- Biochemistry and Molecular Biology, University of Texas Houston Medical School, Houston, United States
| | - R E Kellems
- Biochemistry and Molecular Biology, University of Texas Houston Medical School, Houston, United States
| | - Y Xia
- Biochemistry and Molecular Biology, University of Texas Houston Medical School, Houston, United States
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Affiliation(s)
- C Ning
- ADOLPHUS BUSCH III LABORATORY OF MOLECULAR BIOLOGY, WASHINGTON UNIVERSITY, ST. LOUIS, MISSOURI
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Katara AN, Domino JP, Cheah WK, So JB, Ning C, Lomanto D. Comparing T2 and T2–T3 ablation in thoracoscopic sympathectomy for palmar hyperhidrosis: a randomized control trial. Surg Endosc 2007; 21:1768-71. [PMID: 17404794 DOI: 10.1007/s00464-007-9241-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2006] [Revised: 10/13/2006] [Accepted: 11/02/2006] [Indexed: 10/23/2022]
Abstract
BACKGROUND Thoracoscopic sympathectomy is a useful therapeutic option for palmar hyperhidrosis. Surgeons differ in the level of the sympathetic chain ablated. This study aimed to compare the blockade of the T2 with levels T2 and T3 to verify the effectiveness of different ablation levels in relieving hyperhidrosis symptoms. METHODS For patients undergoing bilateral thoracoscopic sympathectomy for palmar hyperhidrosis, T2-T3 ablation is performed bilaterally. In our series, 25 consecutive patients were blindly randomized to undergo unilateral T2 and T3 ablation followed by contralateral ablation of level T2 only. The patients were followed up and analyzed for comparison of symptoms bilaterally, compensatory hyperhidrosis, and levels of satisfaction postoperatively. RESULTS The study group consisted of 25 patients with a male:female ratio of 3:2 and a mean age of 32 years (range, 19-50 years). The mean operative time was 35 min. The patients were followed up for a mean period of 23 months (range, 2-65 months). All 25 patients confirmed that their palmar sweating resolved postoperatively, with both palms equally dry. Of the 25 patients, 20 (80%) complained of compensatory hyperhidrosis, which also was bilaterally symmetric. The areas involved were trunk (80%), lower limbs (32%), and armpits (12%). Overall, 80% of the patients were very satisfied with the procedure. The remaining 20% experienced mild to moderate compensatory hyperhidrosis, which did not seem to affect their lifestyle. CONCLUSION The findings show that T2 ablation in thoracoscopic sympathectomy for palmar hyperhidrosis is as effective as T2-T3 ablation in terms of symptomatic relief, recurrence, compensatory hyperhidrosis, and patient satisfaction.
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Affiliation(s)
- A N Katara
- Minimally Invasive Surgical Centre, Department of General Surgery, National University Hospital, 5 Lower Kent Ridge Road, Singapore, Singapore, 119074.
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Fang J, Ning C, Shu D, Wei H, Lin H, Wang M. Growth-promoting effect of recombinant human growth hormone and stanozolol in girls with Turner syndrome. J Tongji Med Univ 2003; 19:63-5. [PMID: 12840880 DOI: 10.1007/bf02895600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Ten girls with Turner syndrome were treated with a combination therapy of recombinant human growth hormone (R-hGH) and low dose stanozolol for a period of 8 to 36 months. The results showed that when compared with the growth rate before the treatment, the growth rates after treatment with R-hGH and stanozolol showed a sustained increase, reaching 9.0 +/- 1.9 cm/year during the first year of treatment; the height age increase by 2.5 +/- 0.8 years while the bone age increase were 1.0 +/- 0.7 years; and the predicted final adult height at the end of the first year of the treatment increased to 149.4 +/- 6.1 cm compared to their original mean of 142.8 +/- 4.2 cm. We are led to conclude that therapy with R-hGH in combination with stanozolol can increase the growth velocity and significantly increase the predicted adult height of children with Turner syndrome.
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Affiliation(s)
- J Fang
- Department of Pediatrics, Tongji Hospital, Tongji Medical University, Wuhan 430030
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Ning C, Reynolds R, Chen J, Yager C, Berry GT, Leslie N, Segal S. Galactose metabolism in mice with galactose-1-phosphate uridyltransferase deficiency: sucklings and 7-week-old animals fed a high-galactose diet. Mol Genet Metab 2001; 72:306-15. [PMID: 11286504 DOI: 10.1006/mgme.2001.3152] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Mice deficient in galactose-1-phosphate uridyltransferase (GALT) demonstrate abnormal galactose metabolism but no obvious clinical phenotype. To further dissect the pathways of galactose metabolism in these animals, galactose oxidation and metabolite levels were studied in 16-day-old sucklings and the effect of a 4 week prior exposure to a 40% glucose or 40% galactose diet was determined in 7-week-old mice. Suckling GALT-deficient (G/G) mice slowly oxidized [1-14C]galactose to 14CO2, 4.0% of the dose when fed and 7.9% when fasted compared to normal animals 38.3 and 36.4% in 4 h, respectively. Plasma of G/G sucklings contained 11.1 mM galactose and erythrocyte galactose 1-phosphate levels were 28.2 and 31.9 mg/dl packed cells. Galactose, galactitol, galactonate, and galactose 1-phosphate were found in G/G suckling mouse tissues. The tissue galactose concentrations were 10% or less of that in plasma, suggesting that there was limited cellular entry of galactose. In 7-week-old fasted mice with 4 weeks prior exposure to glucose or galactose-containing diet, 4-h oxidation was 12.9 and 15.0% of the administered radiolabeled galactose, respectively. Normal animals oxidized 33.9 and 37.9% of the dose when fed the same diets, respectively. The ability of G/G mice to oxidize galactose in the absence of GALT activity suggests the presence of alternate metabolic pathways for galactose disposition. G/G mice fed the galactose-free 40% glucose diet had erythrocyte galactose 1-phosphate levels ranging from 6.4 to 17.7 mg/dl packed cells and detectable galactose and galactose metabolites in tissues, suggesting that these animals endogenously produced galactose. The plasma of 40% galactose-fed G/G mice contained 9.1 mM galactose with red blood cell galactose 1-phosphate averaging 43.6 mg/dl. Tissues of these animals also contained high levels of galactose and galactose 1-phosphate. Liver contained over 4 micromol/g galactonate but little galactitol. Despite the elevated galactose and galactose 1-phosphate, the animals tolerated the high-galactose diet and were indistinguishable from normal animals, exhibiting no manifestations of galactose toxicity seen in human GALT-deficient galactosemia. The data suggest that high galactose 1-phosphate levels do not cause galactose toxicity and that high galactitol in combination with galactose 1-phosphate may be a prerequisite. Absence of GALT appears necessary but insufficient to produce human galactosemic phenotype.
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Affiliation(s)
- C Ning
- Department of Pediatrics, University of Pennsylvania, Philadelphia, Pennsylvania 19104-4318, USA
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Berry GT, Hunter JV, Wang Z, Dreha S, Mazur A, Brooks DG, Ning C, Zimmerman RA, Segal S. In vivo evidence of brain galactitol accumulation in an infant with galactosemia and encephalopathy. J Pediatr 2001; 138:260-2. [PMID: 11174626 DOI: 10.1067/mpd.2001.110423] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In a newborn infant with galactose-1-phosphate uridyltransferase deficiency and encephalopathy, brain magnetic resonance imaging revealed cytotoxic edema in white matter. Using in vivo proton magnetic resonance spectroscopy, we detected approximately 8 mmol galactitol per kilogram of brain tissue, an amount potentially relevant to the pathogenesis of brain edema.
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Affiliation(s)
- G T Berry
- Department of Pediatrics, University of Pennsylvania School of Medicine, Philadelphia 19104, USA
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Ning C, Segal S. Plasma galactose and galactitol concentration in patients with galactose-1-phosphate uridyltransferase deficiency galactosemia: determination by gas chromatography/mass spectrometry. Metabolism 2000; 49:1460-6. [PMID: 11092512 DOI: 10.1053/meta.2000.9512] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The plasma concentration of galactose and galactitol was measured in 27 patients with galactose-1-phosphate uridyltransferase (GALT) deficiency galactosemia on a lactose-restricted diet, 17 infants on lactose-free formula, and 21 infants and children on a normal diet, by a newly devised isotope dilution gas chromatograph/mass spectrometry (GC/MS) method. The method was linear in the range of 0.1 to 10 micromol/L for galactose and 1 to 20 micromol/L for galactitol with good reproducibility and a coefficient of variation less than 3%. The mean plasma galactose in 15 patients who were homozygous for the most common Q188R mutation of the GALT gene was 2.72 +/- 0.70 micromol/L (mean +/- SE) with a range of 0.58 to 3.98 in specimens obtained at regular clinic visits. In 12 patients with other GALT mutations, it was 2.45 +/- 0.75 micromol/L. The mean value in nongalactosemic subjects on lactose-free formula was 0.52 +/- 0.08 micromol/L, with a range of 0.12 to 1.25. The range in 21 normal subjects without diet restriction was 0.11 to 6.33 micromol/L, with a mean of 1.48 +/- 0.32. The plasma galactitol level was 11.63 +/- 0.46 and 10.85 +/- 1.38 micromol/L in the 2 galactosemic groups. There was no relationship between plasma galactose and galactitol levels, with variable ratios of the two substances in the galactosemic patients. Galactitol was not detectable in the plasma of normal subjects. The red blood cell galactose-1-phosphate level was also measured in the galactosemic patients, and no relationship between plasma galactose and red blood cell galactose-1-phosphate was found. The galactose-1-phosphate concentration was 28 to 54 times higher than the ambient galactose. The low galactose concentration in the plasma of galactosemics on galactose-restricted diets in relation to the higher plasma galactitol and red blood cell galactose-1-phosphate is a metabolic enigma. The ability to measure plasma galactose accurately presents a new way of characterizing the galactosemic patient and the levels monitored over time may provide insight into the development of long-term complications associated with the disorder.
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Affiliation(s)
- C Ning
- Department of Pediatrics, University of Pennsylvania School of Medicine, and The Children's Hospital of Phildelphia, 19104, USA
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Abstract
The ability of mice deficient in galactose-1-phosphate uridyltransferase (GALT) to metabolize galactose was determined in animals weaned to a mouse chow diet for a 4-wk period. When given [14C]galactose intraperitoneally, these animals slowly oxidized the sugar, excreting only 5.5% of the dose as 14CO2 in 4 h, whereas normal animals excreted 39.9%. These results mimic those seen in human galactosemic patients given isotopic galactose. When given 10 micromol of [1-13C]galactose, normal animals excrete small amounts of labeled galactose and galactonate but no galactitol in urine whereas GALT-deficient mice excrete significant amounts of all of these as labeled compounds in urine. When challenged with galactose, only about 20% of the dose is excreted in urine, and even on the chow diet, significant amounts of galactose, galactonate, and galactitol are excreted in urine. These compounds are also found to be present in liver, kidney, and brain, except that galactonate is not found in brain. Galactose-1-phosphate accumulates in red blood cells to levels found in humans exposed to large amounts of galactose, and galactose-1-phosphate is found in increased amounts in liver, kidney, and brain of GALT-deficient animals. There was no difference in the hepatic concentration of uridine diphosphate galactose and uridine diphosphate glucose between normal and GALT-deficient mice. The explanation for the presence of galactose and its conversion products in tissues and urine of affected mice appears to be related to the presence of approximately 1.75% of galactose-containing carbohydrates in the chow, which becomes bioavailable to mice. Despite the presence of galactose and its metabolites in tissues and urine and impaired ability to oxidize the sugar, the GALT-deficient animals are indistinguishable from normal animals and do not exhibit the phenotype of humans with GALT-deficiency galactosemia.
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Affiliation(s)
- C Ning
- Division of Biochemical Development and Molecular Diseases, The Children's Hospital of Philadelphia,Pennsylvania 19104, USA
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Abstract
Determination of endogenous galactose formation in galactosemic subjects provides important information in understanding the etiology of the long-term complications. To accomplish this task a sensitive method for measurement of isotopic enrichment of plasma galactose was developed. The aldononitrile pentaacetate derivative of galactose was utilized for gas chromatography/mass spectrometry analysis. Using a phenyl-methylsilicone capillary column, adequate separation of galactose from glucose was obtained by temperature programming of the chromatography. The specific fragmentation pattern of m/z 212, 225, 314 from d-[(12)C]galactose and m/z 213, 226, 315 from l-[(13)C]galactose was used for the galactose enrichment measurement by atom percent excess (APE). There was good correlation between expected enrichment and determined APEs at galactose concentrations of 1, 2, and 5 micromol/L with a coefficient of variation ranging from 0.22 to 7.17%. The method provides an accurate estimation of plasma [(13)C]galactose enrichment from which the galactose production rate can be calculated. The steady-state plasma l-[(13)C]galactose isotopic enrichment of three individuals with galactosemia, two males ages 33 and 13, and one female age 9, during constant infusion of l-[(13)C]galactose was 55, 41, and 55%, allowing the estimation of the apparent galactose appearance rate of 0.62, 1.09, and 0.82 mg/kg/h, respectively. The reanalysis of three previous studies by the present method found that APE values determined by the method then employed, butylboronate acetate derivatization, were systemically lower than those determined with aldononitrile pentaacetate derivatization, making for an overestimation of the apparent galactose appearance rate. The small plasma sample volumes needed make it feasible to perform these studies in infants and young children with galactosemia.
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Affiliation(s)
- C Ning
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
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Ai Y, Zheng Z, O'Brien-Jenkins A, Bernard DJ, Wynshaw-Boris T, Ning C, Reynolds R, Segal S, Huang K, Stambolian D. A mouse model of galactose-induced cataracts. Hum Mol Genet 2000; 9:1821-7. [PMID: 10915771 DOI: 10.1093/hmg/9.12.1821] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Galactokinase (GK; EC 2.7.1.6) is the first enzyme in the metabolism of galactose. In humans, GK deficiency results in congenital cataracts due to an accumulation of galactitol within the lens. In an attempt to make a galactosemic animal model, we cloned the mouse GK gene (Glk1) and disrupted it by gene targeting. As expected, galactose was very poorly metabolized in GK-deficient mice. In addition, both galactose and galactitol accumulated in tissues of GK-deficient mice. Surprisingly, the GK-deficient animals did not form cataracts even when fed a high galactose diet. However, the introduction of a human aldose reductase transgene into a GK-deficient background resulted in cataract formation within the first postnatal day. This mouse represents the first mouse model for congenital galactosemic cataract.
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Affiliation(s)
- Y Ai
- Department of Ophthalmology and Genetics, University of Pennsylvania, Room 313 Stellar Chance, 422 Curie Boulevard, Philadelphia, PA 19104, USA
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Liu G, Li Z, Ning C, Wang C, Han J. An observation on the mimic ecology of the oncomelania hupensis in three-Gorge-reservoir areas. J Tongji Med Univ 2000; 18:65-8. [PMID: 10806825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
According to the modulation of three-gorge-reservoir water level, the two observation spots were established at Gaoyang Town and Jianshe Village in Xingshan County of Hubei Province in order to observe the survival and reproduction of the oncomelania under different ecological conditions. Our one-year observation revealed that most settled oncomelania died between June and August in the year and only a few of them survived the winter. The oncomelania hupensis's survival rate in group I, II, III settled in Gaoyang Town was 10%, 1%, 0%, respectively, and the oncomelania Sichuan's 12.5%, 22.5%, 13.5%. The rates obtained from spots in Jianshe Village is 0%, 2%, 0% and 9.5%, 19%, 3%, respectively. The survival rate of oncomelania Sichuan was higher than that of the oncomelania hupensis in the two spots. After draining the feeding pools, the soil samples were harvested and used for egg-hatching. The numbers of eggs that hatched in group I, II in Gaoyang were 1 and 2, respectively. The young oncomelania were found in each spot pool after the drainage, suggesting that the local condition is favorable to the oncomelania and the mating season of each group oncomelania is from April to August with the most active mating time being from May to June.
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Affiliation(s)
- G Liu
- Department of Parasitology, School of Basic Medical Sciences, Tongji Medical University, Wuhan
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Fenn PT, Ning C, Segal S, Blair IA. Determination of [(13)C]galactose enrichment in human plasma by gas chromatography/positive chemical ionization tandem mass spectrometry. J Mass Spectrom 2000; 35:218-223. [PMID: 10679984 DOI: 10.1002/(sici)1096-9888(200002)35:2<218::aid-jms932>3.0.co;2-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Galactosemia is a potentially fatal disease resulting from a deficiency of galactose-1-phosphate uridyl transferase. In order to perform mechanistic studies designed to elucidate further the etiology of the disease, we required a method to monitor (13)C enrichment in plasma galactose following a single oral dose or intravenous infusion of [1-(13)C]galactose. Determinations of plasma [(13)C]galactose enrichment requires methodology with extremely high specificity because of potential interference from other low molecular mass plasma constituents and from glucose, an isomer which is present in much higher concentrations. We have developed a method based on gas chromatography/positive chemical ionization tandem mass spectrometry (GC/PCI-MS/MS) for the precise and accurate determination of plasma [(13)C]galactose enrichment. The method employed a pentaacetylaldononitrile derivative of galactose in order to improve its GC and MS characteristics. Peak areas resulting from the transitions m/z 328 --> 106 and m/z 329 --> 107 were used to quantify the relative abundance of labeled and unlabeled galactose. Validation of the method was performed by determination of the precision and accuracy over a wide range of galactose concentrations and (13)C enrichments. The GC/PCI-MS/MS method was able to determine accurately enrichments at galactose concentrations down to 0.8 microM in the presence of 4 mM glucose, making it both highly selective and the most sensitive method currently available.
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Affiliation(s)
- P T Fenn
- Center for Cancer Pharmacology, Department of Pharmacology, University of Pennsylvania, 421 Curie Boulevard, Philadelphia, Pennsylvania, 19104-6160, USA
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Palmieri M, Mazur A, Berry GT, Ning C, Wehrli S, Yager C, Reynolds R, Singh R, Muralidharan K, Langley S, Elsas L, Segal S. Urine and plasma galactitol in patients with galactose-1-phosphate uridyltransferase deficiency galactosemia. Metabolism 1999; 48:1294-302. [PMID: 10535394 DOI: 10.1016/s0026-0495(99)90271-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Urinary excretion of galactitol was determined in 95 normals (N/N), 67 galactosemic (G/G), and 39 compound heterozygotes for the Duarte and galactosemia genotype (D/G). Galactitol excretion is age-dependent in both normal individuals and patients with classic galactosemia on lactose-restricted diets. In galactosemic patients who are homozygous for the Q188R mutation, urinary galactitol levels were fivefold to 10-fold higher than those of normal subjects of comparable age. All but a few patients with classic galactosemia with the Q188R mutation and another mutant G allele had urinary excretion comparable to the Q188R homozygous patients. African-American galactosemic patients with the S135L mutation of the galactose-1-phosphate uridyltransferase (GALT) gene also excreted abnormal quantities of galactitol. Most subjects with a Duarte allele and a G allele excrete normal amounts of the sugar alcohol. There is a correlation between galactitol excretion and red blood cell (RBC) galactose-1-phosphate (gal-1-P). Plasma galactitol was also elevated in galactosemic patients (3.4 to 23.2 micromol/L; undetectable in normal individuals). In contrast to the decrease in urinary galactitol with age, plasma levels remain in a narrow concentration range with no significant difference with age. Urine and plasma galactitol distinguish galactosemic patients from normals. In addition, urinary galactitol excretion may be an important parameter for the assessment of steady-state galactose metabolism in galactosemia.
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Affiliation(s)
- M Palmieri
- Department of Pediatrics, University of Pennsylvania School of Medicine, Children's Hospital of Philadelphia, 19104, USA
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Abstract
OBJECTIVE AND IMPORTANCE Concomitant atlantoaxial and atlanto-occipital subluxation resulting from any cause is extremely rare. We have found only five previously reported cases and describe another, suggesting a treatment plan. CLINICAL PRESENTATION A 13-year-old female patient presented with a 3-month history of neck pain and decreased neck movements. All symptoms started after a localized neck infection had been treated successfully with antibiotics. There was no history of trauma. A diagnosis of postinfective atlanto-occipital and atlantoaxial rotatory subluxation was made based on a plain roentgenogram and was confirmed based on a computed tomographic scan. INTERVENTION The atlantoaxial and atlanto-occipital subluxation was reduced during surgery. A posterior C1-C2 fixation was performed, and the atlanto-occipital joint was stabilized by means of a halo body jacket for 3 months. One year after removal of the jacket, all subluxation remained reduced and the patient retained significant neck movement. CONCLUSION Disruption of the occipito-atlanto-axial complex can result from relatively minor head and neck infections and should be suspected in children with persisting neck pain and decreased neck movements. It may not be necessary to perform an occipitoaxial fusion to treat these patients, and a more limited fusion may be successful.
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Affiliation(s)
- S Hettiaratchy
- Department of Neurosurgery, Royal London Hospital, England
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