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Wang G, Yang Y, Yi D, Yuan L, Yin PH, Ke X, Jun-Jie W, Tao MF. Eudragit S100 prepared pH-responsive liposomes-loaded betulinic acid against colorectal cancer in vitro and in vivo. J Liposome Res 2021; 32:250-264. [PMID: 34895013 DOI: 10.1080/08982104.2021.1999974] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This study aimed to develop polymer Eudragit S100 for preparing pH-responsive liposomes-loaded betulinic acid (pH-BA-LP) to improve the therapeutic index of chemotherapy for colorectal cancer. BA-loaded liposomes were coated with Eudragit S100 by a thin film dispersion and easily scalable pH-driven method. The prepared liposomes were evaluated for size, surface morphology, entrapment efficiency, stability, in vitro drug release, and antitumor activity. In particular, pH-BA-LP showed advantages such as lower size (<100 nm), encapsulation efficiency of 90%, high stability, and stably cumulative release. By detecting the antitumor effects of pH-BA-LP in vivo, it showed that the tumor proliferation and cell migration were significantly inhibited in colorectal cancer. The pH-BA-LP also inhibited tumor growth via the regulation of Akt/TLR-mediated signalling and significantly down-regulated the expression of NFAT1 and NFAT4 proteins. It was found that pH-BA-LP can increase NK cells and CD3+ cells in tumor tissues, and the proportion of CD8+ cells in CD3+ cells was also increased, which proved that pH-BA-LP can play an antitumor effect by enhancing the autoimmunity level in tumor-bearing mice. The positive infiltration rates of CD8 and CD68 were increased and CD163 was relatively decreased by using pH-BA-LP, which proved that pH-BA-LP can regulate the immune infiltration levels in tumor-bearing mice. Therefore, the present work provides an effective method to prepare pH-responsive polymer-coated liposomes for colonic delivery with biologically active compounds.
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Affiliation(s)
- Gang Wang
- Department of Pharmaceutics, Shanghai Eighth People's Hospital, Jiangsu University, Shanghai, China
| | - Yu Yang
- Jiangsu University School of Pharmacy, Zhenjiang City, China
| | - Du Yi
- Department of Pharmaceutics, Shanghai Eighth People's Hospital, Jiangsu University, Shanghai, China
| | - Lu Yuan
- Department of Pharmaceutics, Shanghai Eighth People's Hospital, Jiangsu University, Shanghai, China
| | - Pei-Hao Yin
- Interventional Cancer Institute of Chinese Integrative Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xu Ke
- Interventional Cancer Institute of Chinese Integrative Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wang Jun-Jie
- Department of Pharmaceutics, Shanghai Eighth People's Hospital, Jiangsu University, Shanghai, China
| | - Min-Fang Tao
- Department of Pharmaceutics, Shanghai Eighth People's Hospital, Jiangsu University, Shanghai, China
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Wang G, Yu Y, Li ZM, Zhu ZM, Wang ZJ, Tao MF. Triterpenoids of Rhus chinensis Supressed Colorectal Cancer Progress by Enhancing Antitumor Immunity and CD8 + T Cells Tumor Infiltration. Nutr Cancer 2021; 74:2550-2564. [PMID: 34866510 DOI: 10.1080/01635581.2021.2009523] [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: 10/19/2022]
Abstract
The absence of CD8+ T cells in the tumor center has become a major obstacle in the immunotherapy of colorectal cancer. Therefore, new therapeutic strategies are urgently needed to promote the accumulation of CD8+ T cells in the tumor center. Previous studies have shown that triterpenoid of Rhus chinensis (TER) is involved in the proliferation and apoptosis of colorectal cancer cells, and can regulate their immune activity, but its mechanism needs to be further elucidated. In this study, the antitumor effect and adaptive immune response of TER on tumor-bearing mice were evaluated and compared with 5-fluorouracil. The results showed that TER could significantly inhibit tumor growth and prolong the survival time of tumor-bearing mice. The In Vivo studies have shown that TER can not only enhance antitumor immunity and promote the accumulation of CD8 + T cells to tumor sites, but also inhibit tumor progression by regulating the expression of PD-1 and PD-L1 and significantly reducing the mortality of mice. Our study demonstrated for the first time that TER has oncolytic effect, and recruited adaptive immune cells to enhance the efficacy of anti-PD-1/PD-L1 in colorectal cancer, which provides a potential therapeutic target for combined immunotherapy of colorectal cancer.
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Affiliation(s)
- Gang Wang
- Department of Pharmaceutics, Shanghai Eighth People's Hospital, Jiangsu University, Shanghai, China
| | - Yang Yu
- Department of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Zi-Meng Li
- Department of Pharmaceutics, Shanghai Eighth People's Hospital, Jiangsu University, Shanghai, China
| | - Zhi-Min Zhu
- Department of Pharmaceutics, Shanghai Eighth People's Hospital, Jiangsu University, Shanghai, China
| | - Zhi-Jie Wang
- Department of Pharmaceutics, Shanghai Eighth People's Hospital, Jiangsu University, Shanghai, China
| | - Min-Fang Tao
- Department of Pharmaceutics, Shanghai Eighth People's Hospital, Jiangsu University, Shanghai, China
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Tao MF, Sun DM, Shao HF, Li CB, Teng YC. Poor sleep in middle-aged women is not associated with menopause per se. ACTA ACUST UNITED AC 2016; 49:e4718. [PMID: 26577848 PMCID: PMC4678654 DOI: 10.1590/1414-431x20154718] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 08/06/2015] [Indexed: 11/22/2022]
Abstract
Whether sleep problems of menopausal women are associated with vasomotor symptoms and/or changes in estrogen levels associated with menopause or age-related changes in sleep architecture is unclear. This study aimed to determine if poor sleep in middle-aged women is correlated with menopause. This study recruited women seeking care for the first time at the menopause outpatient department of our hospital. Inclusion criteria were an age ≥40 years, not taking any medications for menopausal symptoms, and no sleeping problems or depression. Patients were assessed with the Pittsburgh Sleep Quality Index (PSQI), modified Kupperman Index (KI), and Menopause Rating Scale (MRS). A PSQI score of <7 indicated no sleep disorder and ≥7 indicated a sleep disorder. Blood specimens were analyzed for follicle-stimulating hormone and estradiol levels. A total of 244 women were included in the study; 103 (42.2%) were identified as having a sleep disorder and 141 as not having one. In addition, 156 (64%) women were postmenopausal and 88 (36%) were not menopausal. Follicle-stimulating hormone and estradiol levels were similar between the groups. Patients with a sleep disorder had a significantly higher total modified KI score and total MRS score (both, P<0.001) compared with those without a sleep disorder. Correlations of the PSQI total score with the KI and MRS were similar in menopausal and non-menopausal women. These results do not support that menopause per se specifically contributes to sleep problems.
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Affiliation(s)
- M F Tao
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated to the Sixth People's Hospital, Shanghai, China
| | - D M Sun
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated to the Sixth People's Hospital, Shanghai, China
| | - H F Shao
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated to the Sixth People's Hospital, Shanghai, China
| | - C B Li
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated to the Sixth People's Hospital, Shanghai, China
| | - Y C Teng
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated to the Sixth People's Hospital, Shanghai, China
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Ge QL, Liu SH, Ai ZH, Tao MF, Ma L, Wen SY, Dai M, Liu F, Liu HS, Jiang RZ, Xue ZW, Jiang YH, Sun XH, Hu YM, Zhao YX, Chen X, Tao Y, Zhu XL, Ding WJ, Yang BQ, Liu DD, Zhang XR, Teng YC. RelB/NF-κB links cell cycle transition and apoptosis to endometrioid adenocarcinoma tumorigenesis. Cell Death Dis 2016; 7:e2402. [PMID: 27711077 PMCID: PMC5133976 DOI: 10.1038/cddis.2016.309] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 08/18/2016] [Accepted: 08/30/2016] [Indexed: 12/13/2022]
Abstract
Dysfunction of nuclear factor-κB (NF-κB) signaling has been causally associated with numerous human malignancies. Although the NF-κB family of genes has been implicated in endometrial carcinogenesis, information regarding the involvement of central regulators of NF-κB signaling in human endometrial cancer (EC) is limited. Here, we investigated the specific roles of canonical and noncanonical NF-κB signaling in endometrial tumorigenesis. We found that NF-κB RelB protein, but not RelA, displayed high expression in EC samples and cell lines, with predominant elevation in endometrioid adenocarcinoma (EEC). Moreover, tumor cell-intrinsic RelB was responsible for the abundant levels of c-Myc, cyclin D1, Bcl-2 and Bcl-xL, which are key regulators of cell cycle transition, apoptosis and proliferation in EEC. In contrast, p27 expression was enhanced by RelB depletion. Thus, increased RelB in human EC is associated with enhanced EEC cell growth, leading to endometrial cell tumorigenicity. Our results reveal that regulatory RelB in noncanonical NF-κB signaling may serve as a therapeutic target to block EC initiation.
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Affiliation(s)
- Qiu-Lin Ge
- Department of Obstetrics and Gynecology, The Sixth People's Hospital affiliated with Shanghai Jiao Tong University, Shanghai, China
| | - San-Hong Liu
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhi-Hong Ai
- Department of Obstetrics and Gynecology, The Sixth People's Hospital affiliated with Shanghai Jiao Tong University, Shanghai, China
| | - Min-Fang Tao
- Department of Obstetrics and Gynecology, The Sixth People's Hospital affiliated with Shanghai Jiao Tong University, Shanghai, China
| | - Li Ma
- Department of Obstetrics and Gynecology, The Sixth People's Hospital affiliated with Shanghai Jiao Tong University, Shanghai, China
| | - Shan-Yun Wen
- Department of Obstetrics and Gynecology, Shanghai Songjiang District Central Hospital, Shanghai, China
| | - Miao Dai
- Department of Obstetrics and Gynecology, The Sixth People's Hospital affiliated with Shanghai Jiao Tong University, Shanghai, China
| | - Fei Liu
- Department of Obstetrics and Gynecology, The Sixth People's Hospital affiliated with Shanghai Jiao Tong University, Shanghai, China
| | - Han-Shao Liu
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rong-Zhen Jiang
- Department of Obstetrics and Gynecology, The Sixth People's Hospital affiliated with Shanghai Jiao Tong University, Shanghai, China
| | - Zhuo-Wei Xue
- Department of Obstetrics and Gynecology, The Sixth People's Hospital affiliated with Shanghai Jiao Tong University, Shanghai, China
| | - Yu-Hang Jiang
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Hua Sun
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi-Ming Hu
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yong-Xu Zhao
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xi Chen
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Tao
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Lu Zhu
- Department of Obstetrics and Gynecology, The Sixth People's Hospital affiliated with Shanghai Jiao Tong University, Shanghai, China
| | - Wen-Jing Ding
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Bing-Qing Yang
- Department of Obstetrics and Gynecology, The Sixth People's Hospital affiliated with Shanghai Jiao Tong University, Shanghai, China
| | - Dan-Dan Liu
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Ren Zhang
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yin-Cheng Teng
- Department of Obstetrics and Gynecology, The Sixth People's Hospital affiliated with Shanghai Jiao Tong University, Shanghai, China
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Li HP, Wang FH, Tao MF, Huang YJ, Jia WP. Association between glycemic control and birthweight with glycated albumin in Chinese women with gestational diabetes mellitus. J Diabetes Investig 2015; 7:48-55. [PMID: 26816601 PMCID: PMC4718110 DOI: 10.1111/jdi.12383] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Revised: 04/25/2015] [Accepted: 05/17/2015] [Indexed: 11/30/2022] Open
Abstract
Aims/Introduction To assess glycated albumin (GA) as a potential glycemic index in managing gestational diabetes mellitus (GDM). Materials and Methods Eligible pregnant women were divided into the GDM group with abnormal result on a 75‐g oral glucose tolerance test (OGTT) and the control (normal) group. GA measurements, Pearson's correlation analysis, multiple logistic regression and receiver operating characteristic curve analysis were obtained at the follow‐up examination of participants in the two groups. Results A total of 2,118 women were assigned to the GDM group (n = 639) and control group (n = 1,479). The mean level of serum GA in GDM group was significantly greater than that in the control group at both 24–28 and 36–38 weeks of gestation (P < 0.05). The area under the receiver operating characteristic curve for GA defining good glycemic control in GDM was 0.874 (95% confidence interval 0.811–0.938). The cut‐off point for the GA levels derived from the receiver operating characteristic curve was 11.60%, which had sensitivity and specificity for detecting a poor glycemic status of 75.93% and 86.36%, respectively. The risk of birthweight ≥3,500 g and macrosomia increased significantly with GA levels ≥13.00% at 24–28 weeks and ≥12.00% at 36–38 weeks of gestation. Conclusions GA might be an appropriate and conveniently measured index that can detect poor glycemic control and predict birthweights in GDM women.
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Affiliation(s)
- Hua-Ping Li
- Department of Gynecology & Obstetrics Shanghai Clinical Center for Diabetes Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai China
| | - Feng-Huan Wang
- Department of Gynecology & Obstetrics Shenzhou City Hospital Shenzhou Hebei China
| | - Min-Fang Tao
- Department of Gynecology & Obstetrics Shanghai Clinical Center for Diabetes Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai China
| | - Ya-Juan Huang
- Department of Gynecology & Obstetrics Shanghai Clinical Center for Diabetes Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai China
| | - Wei-Ping Jia
- Department of Endocrinology and Metabolism Shanghai Clinical Center for Diabetes Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai China
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Jin F, Tao M, Teng Y, Shao H, Li C, Mills E. Knowledge and attitude towards menopause and hormone replacement therapy in Chinese women. Gynecol Obstet Invest 2014; 79:40-5. [PMID: 25277502 DOI: 10.1159/000365172] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To explore the knowledge and prevalence of menopausal symptoms as well as the use and attitude toward hormone replacement therapy (HRT) in Chinese women. METHODS A cross-sectional study was conducted between May 2011 and April 2012 in Shanghai, China. The structured questionnaire addressing sociodemographic characteristics, knowledge and prevalence of menopausal symptoms, and knowledge and attitude towards HRT and its use were investigated. RESULTS 3,619 women aged 40-65 years were included in the analysis. The majority of the women had knowledge of menopause. Symptoms were prevalent in 16.1% of premenopausal women and in 49.3% of peri-, post- and surgical-menopausal women. Back and joint pain, sleeplessness, fatigue and sweating/hot flushes were frequently reported. HRT awareness among women was 3.5% and was related to menopausal, working and marital status; 75 (2.1%) women had used or were using HRT, of which 57.3% used HRT with a doctor's prescription and 29.3% experienced side effects from the use of HRT. CONCLUSION Most Chinese women had knowledge of menopause and thought menopausal symptoms should not be treated. The awareness of HRT was poor and influenced by menopausal, working and marital status. Chinese health care providers have to assume responsibility for educating women about menopause and HRT use.
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Affiliation(s)
- Feng Jin
- Department of Gynecology, Affiliated Sixth People's Hospital, Shanghai Jiaotong University, Shanghai, China
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Tao MF, Rong R, Shao HF, Xia J. The cost-effectiveness analysis of laparoscopic treatment of ectopic pregnancy: a single-center review of a five-year experience. CLIN EXP OBSTET GYN 2014; 41:24-27. [PMID: 24707677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
PURPOSE The aim of this study was to investigate the cost-effectiveness of laparoscopic treatment for ectopic pregnancy by comparing the medical expenses and time of hospitalization of laparoscopic and open surgery for ectopic pregnancy in partial area of Shanghai, China. MATERIALS AND METHODS Clinical data of 762 cases with ectopic pregnancy undergoing surgical treatment (307 cases for laparoscopic surgery and 455 cases for open surgery) were analyzed retrospectively. The clinical information including the medical expenses and time of hospitalization was compared. The patients were divided into three groups according to the treatments of different lesions (lesions resection, conservative laparotomy, and exploration group) and were analyzed. RESULTS The total hospitalization expenses and the top three single costs including surgery, exams, and medicine expenses were higher in laparoscopic group than in open surgery group. There was no significant difference between the two groups on the total time of hospitalization. The hospital days of preoperation were higher but the postoperative hospital days were lower in laparoscopic group than in open surgery group. Compared with the open surgery treatment, the hospitalization expenses of laparoscopic treatment for ectopic pregnancy increased. There was no significant difference on the total hospitalization days. CONCLUSION The preoperative waiting period of inpatients increased and the post-operative hospital days reduced in laparoscopic group.
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Abstract
BACKGROUND The severity of menopausal symptoms can vary according to ethnicity and geography. Two common menopausal symptom scales, the modified Kupperman Index (KI) and the Menopausal Rating Scale (MRS), are accepted internationally. In this study, we evaluated the correlation between these scales and their relevance to women in the People's Republic of China. METHODS We enrolled treatment-naïve women who visited the menopause outpatient department at a major teaching hospital in Shanghai, People's Republic of China. The women were required to complete two questionnaires, ie, the modified KI and the MRS. We assessed the correlation between the tools using a correlation analysis. RESULTS We enrolled 277 women of average age 51.5 ± 4.8 years. There was a strong positive correlation between total scores on the modified KI and the MRS (0.74, 95% confidence interval 0.69-0.79) and subscores for the somatic and psychological domains (0.74 and 0.77, respectively), with a moderate correlation for urogenital symptoms. According to the modified KI, 15 (5.4%) women were categorized as asymptomatic, and when using the MRS, 33 (11.9%) were categorized as asymptomatic. Women categorized as having none/minimal symptoms by the MRS were diagnosed as having mild to severe symptoms using the modified KI. The highest agreement (74%) was found when symptoms were moderate. CONCLUSION The modified KI and the MRS do correlate in Chinese women, but the modified KI is more likely to identify menopausal symptoms than the MRS in screening if there is doubt about the diagnosis of menopause.
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Affiliation(s)
| | | | | | - YinCheng Teng
- Correspondence: YinCheng Teng, Department of Gynecology, the Sixth Affiliated People’s Hospital of Shanghai Jiao Tong University, 600 Yi Shan Road Shanghai, People’s Republic of China 200233, Tel +11 8621 2405 8544, Fax +11 8621 6470 1361, Email
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Zhu JP, Teng YC, Zhou J, Lu W, Tao MF, Jia WP. Increased mean glucose levels in patients with polycystic ovary syndrome and hyperandrogenemia as determined by continuous glucose monitoring. Acta Obstet Gynecol Scand 2012; 92:165-71. [PMID: 23072215 DOI: 10.1111/aogs.12031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Women with polycystic ovary syndrome are at risk of developing type 2 diabetes mellitus. This study aimed to evaluate the influence of hyperandrogenemia on glucose metabolism in polycystic ovarian syndrome patients. DESIGN Cohort study. SETTING Reproductive Endocrinology Clinic of the Shanghai Sixth People's Hospital. SAMPLE Fifty-three patients were recruited from June 2008 to December 2009, including 28 women with hyperandrogenism and 25 without hyperandrogenemia. METHODS Anthropometric parameters, including weight, height, body mass index and waist-to-hip ratio, as well as sex hormones, were measured. An oral glucose tolerance test, including fasting and two hour glucose and insulin levels, was recorded. Insulin resistance was evaluated by homeostatic model assessment of insulin resistance, and patients underwent continuous glucose monitoring. MAIN OUTCOME MEASURES Mean blood glucose level, mean amplitude of glycemic excursion, frequency of glycemic excursion and the percentage of time of hypoglycemia and hyperglycemia during a 48 h period. RESULTS No differences in age, body mass index, waist-to-hip ratio, fasting and two hour glucose and insulin concentrations were observed between the groups. The hyperandrogenism group had higher levels of luteinizing hormone and dehydroepiandrosterone sulfate (p < 0.05). However, continuous glucose monitoring showed that the minimal blood glucose and mean blood glucose were significantly higher in hyperandrogenemia group (p = 0.004). The percentage of time for hypoglycemia (≤70 mg/dL) was higher in the hyperandrogenemia group (p = 0.002). CONCLUSIONS Polycystic ovarian syndrome patients with hyperandrogenemia had an increased mean glucose value, which may place them at increased risk for developing type 2 diabetes.
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Affiliation(s)
- Jie-Ping Zhu
- Department of Obstetrics and Gynecology, the Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
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Tao M, Teng Y, Shao H, Wu P, Mills EJ. Knowledge, perceptions and information about hormone therapy (HT) among menopausal women: a systematic review and meta-synthesis. PLoS One 2011; 6:e24661. [PMID: 21949743 PMCID: PMC3174976 DOI: 10.1371/journal.pone.0024661] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [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: 03/28/2011] [Accepted: 08/16/2011] [Indexed: 11/19/2022] Open
Abstract
Background The use of hormone therapy (HT) by menopausal women has declined since the Women's Health Initiative randomized trial (WHI) in 2002 demonstrated important harms associated with long-term use. However, how this information has influenced women's knowledge and attitudes is uncertain. We aimed to evaluate the attitudes and perceptions towards HT use, as well as specific concerns and information sources on HT since the WHI trial. Method/Results We did a systematic review to assess the attitudes and knowledge towards HT in women, and estimate the magnitude of the issue by pooling across the studies. Using meta-synthesis methods, we reviewed qualitative studies and surveys and performed content analysis on the study reports. We pooled quantitative studies using a random-effects meta-analysis. We analyzed 11 qualitative studies (n = 566) and 27 quantitative studies (n = 39251). Positive views on HT included climacteric symptom control, prevention of osteoporosis and a perceived improvement in quality of life. Negative factors reported included concerns about potential harmful effects, particularly cancer risks. Sources of information included health providers, media, and social contact. By applying a meta-synthesis approach we demonstrate that these findings are broadly applicable across large groups of patients. Conclusions Although there are clear hazards associated with long-term HT use, many women view HT favorably for climacteric symptom relief. Media, as a source of information, is often valued as equivalent to health providers.
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Affiliation(s)
- MinFang Tao
- Department of Gynecology, Shanghai Jiaotong University, Affiliated Sixth People's Hospital, Shanghai, China.
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Tao MF, Zhu JP, Zhou J, Lu W, Qin W, Teng YC, Jia WP. [Insulin release and daily glucose change in polycystic ovary syndrome women with normal glucose tolerance]. Zhonghua Yi Xue Za Zhi 2009; 89:659-663. [PMID: 19595057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To evaluate the characteristics of daily glucose change, insulin sensitivity, and insulin release in polycystic ovary syndrome (PCOS) women with normal glucose tolerance. METHODS Oral glucose tolerance test (OGTT) with 75 g glucose was conducted on 20 PCOS women with normal glucose tolerance and 20 age-matched healthy women with normal menstruation. Before the glucose uptake and 30, 60, and 120 min after samples of venous blood were collected to detect the blood glucose and insulin. Continuous glucose monitoring system (CGMS) was used to monitor the glucose concentration of subcutaneous interstitial fluid so as to reflect the blood glucose level. Mean blood glucose level (MBG) and its standard deviation (SDBG), mean amplitude of glycemic excursion (MAGE), peak level of postprandial plasma glucose as well as its peaking time during a 48-hour period CGMS were calculated. Stumvoll first-phase and second-phase (1st PH and 2nd PH) insulin release during OGTT were evaluated by Stumvoll formula, whereas baseline insulin release by HOMA-B. Insulin sensitivity index (ISI) was evaluated by Cederholm formula. RESULTS (1) The 1-hour and 3-hour plasma glucose levels during OGTT of the PCOS group were higher than those of the control group (P < 0.01 and P < 0.05 respectively). The fasting insulin level and insulin levels 30, 60, 120, and 180 min after the glucose uptake during OGTT of the PCOS group were all significantly higher than those of the control group (all P < 0.01). (2) The daily MBG, SDBG, and MAGE of the PCOS group were (5.43 +/- 0.44), (0.66 +/- 0.24), and (1.46 +/- 0.47) mmol/L respectively, all similar to those of the control group [(5.3 +/- 0.5), (0.67 +/- 0.27), and (1.7 +/- 0.7) mmol/L respectively, all P > 0.05]. The peaking time of post-breakfast plasma glucose level of the PCOS group was (40 +/- 18) min, significantly longer than that of the control group [(30 +/- 10) min, P < 0.05]. (3) The ISI of the PCOS group was 64 (59 - 81), significantly lower than that of the control group [95 (78 - 102), P < 0.01]. The Stumvoll 1st PH and 2nd PH insulin release levels of the PCOS group were 1779 (1411 - 2194) mU/L and 440 (361 - 545) mU/L respectively, both significantly higher than those of the control group [1217 (1056 - 1477) and 320 (283 - 375) mU/L respectively, P < 0.01 and P < 0.05]. CONCLUSION With normal glucose tolerance, the PCOS women show (1) a backwardly-shifted peak of glucose -stimulated insulin secretion, (2) an abnormal mode of daily glucose change characterized by a delayed peak of post-breakfast plasma glucose level, and (3) significant decrease of peripheral insulin sensitivity with compensated increase of insulin secretion.
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Affiliation(s)
- Min-Fang Tao
- Department of Obstetrics and Gynecology, Shanghai Sixth People's Hospital, Affiliated to Shanghai Jiaotong University, Shanghai 200233, China
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Tao MF, Hu ZH, Zhou XF, Zhou Q, Deng ZX, Kieser T, Hopwood DA. [Over-expression of a polyketide synthase (PKS) module of a giant polyene antibiotic gene cluster in E. coli by double induction]. Yi Chuan Xue Bao 1999; 26:721-30. [PMID: 10876676] [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: 04/14/2023]
Abstract
A 2,671 bp DNA carrying a type I PKS module with KS and AT domains from Streptomyces sp. FR-008 was cloned in-frame into the BamHI site immediately downstream of the PT7 promoter of the E. coli expression vector pET-15b, no considerable expression under IPTG induction was detected. The same PKS gene cloned downstream of the tandem PRPL promoters of pBV220 also yielded no over-expression under 42 degrees C induction. This gene was, however, over-expressed when it was cloned downstream of the tandem PRPT7 or PRPLPT7 promoters. In the case of the tandem PRPLPT7 promoters, the over-expression was dependent on the 42 degrees C plus IPTG double induction. While in the case of the tandem PRPT7 promoters, over-expression could be achieved when the gene was induced by IPTG or 42 degrees C individually or by IPTG and 42 degrees C double induction. Based on these experiences an expression vector pHZ330 containing the tandem PRPT7 promoters was constructed. In addition, the PKS protein expressed in E. coli was injected into rabbits to generate PKS-specific antibodies. Western blotting experiment indicated that these antibodies were PKS-specific which could be used either for the study of the PKS gene cluster or for the detection of the heterologous expression of Streptomyces sp. FR-008 PKS genes.
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Affiliation(s)
- M F Tao
- College of Life Sciences and Technology, Huazhong Agricultural University, Wuhan
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