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Shen Z, Tan Z, Ge L, Wang Y, Xing X, Sang W, Cai G. The global burden of lymphoma: estimates from the Global Burden of Disease 2019 study. Public Health 2024; 226:199-206. [PMID: 38086101 DOI: 10.1016/j.puhe.2023.11.023] [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: 07/25/2023] [Revised: 10/18/2023] [Accepted: 11/09/2023] [Indexed: 01/15/2024]
Abstract
OBJECTIVES The aim of this study was to describe the global trends in the burden of lymphoma from 1990 to 2019. STUDY DESIGN The data used in this study were from the Global Burden of Disease 2019 study. METHODS This study described the age-standardised rates of incidence, prevalence, mortality, years of life lost (YLLs), years lived with disability (YLDs), and disability-adjusted life years (DALYs) of lymphoma (non-Hodgkin and Hodgkin's lymphoma, NHL and HL, respectively) annually from 1990 to 2019, stratified by sociodemographic index (SDI) and 21 world regions. The estimated annual percentage changes in these indexes were calculated. RESULTS In 2019, the age-standardised rates of HL per 100,000 population were lower than those of NHL in terms of incidence (1.1 vs 6.7 per 100,000 person-years, respectively) and prevalence (0.3 vs 5.7 per 100,000 person-years, respectively) but not mortality (21.6 vs 3.2 per 100,000 person-years, respectively). From 1999 to 2019, the global incidence of HL decreased and the incidence of NHL increased, and the prevalence of both HL and NHL increased, but the mortality rates decreased. When stratified by SDI, the incidence of HL decreased in all but middle-SDI regions, the mortality rate of HL decreased in all regions, and both the incidence and mortality rate of NHL increased in all but high-SDI regions. The prevalence of HL and NHL increased in all SDI regions, especially in middle-SDI regions. YLLs and DALYs of HL in all SDI regions and those of NHL in high-SDI regions decreased. YLDs slightly increased in middle- to high-SDI regions. CONCLUSIONS Lymphoma remains a major public health issue, and better prevention, precise identification, and promising treatments are vitally important.
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Affiliation(s)
- Z Shen
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, 230032, China
| | - Z Tan
- Research Center of Health Policy and Health Management, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
| | - L Ge
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, 230032, China
| | - Y Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, 230032, China
| | - X Xing
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, 230032, China
| | - W Sang
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou Jiangsu, 221006, China.
| | - G Cai
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, 230032, China; Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, 7000, Australia.
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Kaazan P, Seow W, Tan Z, Logan H, Philpott H, Huynh D, Warren N, McIvor C, Holtmann G, Clark SR, Tse E. Deliberate foreign body ingestion in patients with underlying mental illness: A retrospective multicentre study. Australas Psychiatry 2023; 31:619-624. [PMID: 37473424 PMCID: PMC10566206 DOI: 10.1177/10398562231189431] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
OBJECTIVE Deliberate foreign body ingestion (DFBI) is characterised by recurrent presentations among patients with mental health conditions, intellectual disabilities and in prisoners. We aimed to profile the characteristics and evaluate the care of such patients in this study. METHODS Adult patients with an endoscopic record of attempted foreign body retrieval between January 2013 and September 2020 were identified at three Australian hospitals. Those with a documented mental health diagnosis were included and their standard medical records reviewed. Presentation history, demographics, comorbidities and endoscopic findings were recorded and described. RESULTS A total of 166 admissions were accounted for by 35 patients, 2/3 of which had borderline personality disorder (BPD). Repetitive presentations occurred in more than half of the cohort. There was an increased trend of hospital admissions throughout the years. At least half of the cohort had a documented mental health review during their admission. An average of 3.3 (2.9) foreign bodies were ingested per single episode. Endoscopic intervention was performed in 76.5% of incidents. The combined Length of stay for all patients was 680 days. CONCLUSION Deliberate foreign body ingestion in mental health patients is a common, recurring and challenging problem that is increasing in frequency and requires collaborative research to further guide holistic management.
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Affiliation(s)
- P Kaazan
- Department of Gastroenterology and Hepatology, The Princess Alexandra Hospital, Brisbane, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, Australia; and
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia
| | - W Seow
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia; and
- Department of Gastroenterology and Hepatology, The Royal Adelaide Hospital, Adelaide, Australia
| | - Z Tan
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia
| | - H Logan
- Department of Gastroenterology and Hepatology, The Princess Alexandra Hospital, Brisbane, Australia; and
- Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - H Philpott
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia
| | - D Huynh
- Department of Gastroenterology and Hepatology, The Queen Elizabeth Hospital, Woodville South, Australia
| | - N Warren
- Faculty of Medicine, The University of Queensland, Brisbane, Australia; and
- Addiction and mental health services, Brisbane, Metro South health
| | - C McIvor
- Department of Gastroenterology and Hepatology, Logan Hospital, Logan, Australia
| | - G Holtmann
- Department of Gastroenterology and Hepatology, The Princess Alexandra Hospital, Brisbane, Australia; and
- Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - S R Clark
- Faculty of Health and Medical Sciences, University of Adelaide, Brisbane, Australia; and
- Discipline of Psychiatry, Central Adelaide Local Health Network
| | - E Tse
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia; and
- Department of Gastroenterology and Hepatology, The Royal Adelaide Hospital, Adelaide, Australia
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Luo Y, Gong K, Xie T, Liu R, Wang L, Liu H, Tan Z, Yao Y, Xie L. A novel variant of CDH2 in dilated cardiomyopathy. QJM 2023; 116:566-568. [PMID: 36961336 DOI: 10.1093/qjmed/hcad047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 03/25/2023] Open
Affiliation(s)
- Y Luo
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - K Gong
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - T Xie
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - R Liu
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - L Wang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - H Liu
- Department of Cardiovascular Surgery, The Clinical Center for Gene Diagnosis and Therapy of The State Key Laboratory of Medical Genetics, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - Z Tan
- Department of Cardiovascular Surgery, The Clinical Center for Gene Diagnosis and Therapy of The State Key Laboratory of Medical Genetics, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - Y Yao
- Department of Blood Transfusion, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - L Xie
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
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Hou Y, Zhao W, Ding X, Zhang X, Li Z, Tan Z, Zhou J, Wang H, Jia S. Co-production of 7-chloro-tryptophan and indole pyruvic acid based on an efficient FAD/FADH 2 regeneration system. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12619-9. [PMID: 37354265 DOI: 10.1007/s00253-023-12619-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 05/22/2023] [Accepted: 05/25/2023] [Indexed: 06/26/2023]
Abstract
Efficient FAD/FADH2 regeneration is vital for enzymatic biocatalysis and metabolic pathway optimization. Here, we constructed an efficient and simple FAD/FADH2 regeneration system through a combination of L-amino acid deaminase (L-AAD) and halogenase (CombiAADHa), which was applied for catalyzing the conversion of an L-amino acid to halide and an α-keto acid. For cell-free biotransformation, the optimal activity ratio of L-AAD and halogenase was set between 1:50 and 1:60. Within 6 h, 170 mg/L of 7-chloro-tryptophan (7-Cl-Trp) and 193 mg/L of indole pyruvic acid (IPA) were synthesized in the selected mono-amino acid system. For whole-cell biotransformation, 7-Cl-Trp and IPA synthesis was enhanced by 15% (from 96 to 110 mg/L) and 12% (from 115 to 129 mg/L), respectively, through expression fine-tuning and the strengthening of FAD/FADH2 supply. Finally, ultrasound treatment was applied to improve membrane permeability and adjust the activity ratio, resulting in 1.6-and 1.4-fold higher 7-Cl-Trp and IPA yields. The products were then purified. This system could also be applied to the synthesis of other halides and α-keto acids. KEY POINTS: • In this study, a whole cell FAD/FADH2 regeneration system co-expressing l-AAD and halogenase was constructed • This study found that the activity and ratio of enzyme and the concentration of cofactors had a significant effect on the catalytic process for the efficient co-production of 7-chlorotryptophan and indole pyruvate.
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Affiliation(s)
- Ying Hou
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Food Science and Engineering, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Wanying Zhao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Food Science and Engineering, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Xincheng Ding
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Food Science and Engineering, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Xuan Zhang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Food Science and Engineering, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Zhibin Li
- College of Agronomy and Resources Environment, Tianjin Agricultural University, Tianjin, 300384, People's Republic of China
| | - Zhilei Tan
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Food Science and Engineering, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Jingwen Zhou
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, 214122, People's Republic of China
| | - Hongxing Wang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Food Science and Engineering, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.
| | - Shiru Jia
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Food Science and Engineering, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.
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Li D, Yi Z, Wu Q, Huang Y, Yao H, Tan Z, Yang Y, Zhang W. De novo DCHS1 splicing mutation in a patient with mitral valve prolapse. QJM 2023; 116:121-122. [PMID: 36053189 DOI: 10.1093/qjmed/hcac214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/26/2022] [Indexed: 11/12/2022] Open
Affiliation(s)
- D Li
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Z Yi
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Q Wu
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Y Huang
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - H Yao
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Z Tan
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Y Yang
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
| | - W Zhang
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
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Zhu Z, Yu P, Wu Y, Wu Y, Tan Z, Ling J, Ma J, Zhang J, Zhu W, Liu X. Sex Specific Global Burden of Osteoporosis in 204 Countries and Territories, from 1990 to 2030: An Age-Period-Cohort Modeling Study. J Nutr Health Aging 2023; 27:767-774. [PMID: 37754217 DOI: 10.1007/s12603-023-1971-4] [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: 06/11/2023] [Accepted: 07/26/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Osteoporosis is a highly prevalent disease with distinct sex pattern. We aimed to estimate the sex specific incidence, prevalence, and disability-adjusted life (DALYs) years of osteoporosis between 1990 and 2019, with additional predictions from 2020 to 2034. METHODS We collected osteoporosis disease burden data from the Global Burden of Disease study covering the years 1990 through 2019 in 204 countries and territories. The data included information on the number of incident cases of osteoporosis, DALYs, age-standardized incidence rates (ASIR), age-standardized prevalence rates (ASPR) and age-standardized DALYs rates. Additionally, we performed an age-period-cohort analysis to forecast the burden of osteoporosis. RESULTS The global number of incidence cases of osteoporosis, in 2019, reached 41.5 million cases. From 1990 to 2019, the low-middle socio-demographic index (SDI) region had the highest estimated annual percentage change in the world. Compared to males, female's ASIR and ASPR were all about 1.5 times higher than males for the same years in the same SDI regions. The projected global total number of incidence cases for osteoporosis between 2030 and 2034 is estimated to reach 263.2 million (154.4 million for females and 108.8 for males). Additionally, the burden in terms of DALYs is predicted to be 128.7 million (with 78.4 million for females and 50.3 million for males). CONCLUSION The global burden of osteoporosis is still increasing, mainly observed in high SDI countries. Females bear a burden 1.5 times higher than males in terms of incidence and DALYs. Steps should be taken to reduce the osteoporosis burden, especially in high SDI countries.
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Affiliation(s)
- Z Zhu
- Jing Zhang, Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, 1st Minde Road, Nanchang, Jiangxi, 330006, China, E-mail: ; Xiao Liu, Department of Cardiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, 510080, Guangdong, China, E-mail:
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Huang J, Song Y, Kou X, Tan Z, Zhang S, Sun M, Zhou J, Fan M, Zhang M, Song Y, Li S, Yuan Y, Zhuang W, Zhang J, Zhang L, Jiang H, Gu K, Ye H, Wang Q, Zhu J. 69O First-line serplulimab versus placebo in combination with chemotherapy in PD-L1-positive oesophageal squamous cell carcinoma (ASTRUM-007): A randomised, double-blind, multicentre phase III study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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Friedman D, Zimmerman S, Tan Z, Freeman J, Curtis J. Watchman device migration and embolization: a report from the NCDR LAAO registry. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.631] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Incomplete anchoring of the Watchman left atrial appendage closure (LAAO) device can result in substantial device migration or device embolization requiring percutaneous or surgical retrieval.
Purpose
To report rates and characteristics of in-hospital and post-discharge Watchman device migration and embolization events in the United States.
Methods
We performed a retrospective analysis of Watchman procedures (January 2016 through March 2021) reported to the National Cardiovascular Data Registry LAAO Registry. We excluded patients with prior LAAO interventions, no device released, and missing device information. In-hospital events were assessed among all patients and post-discharge events were assessed among patients with 45-day follow-up.
Results
Of 120,278 Watchman procedures, device migration or embolization occurred in 0.07% of patients (n=84) during the index hospitalization and surgery was performed in 39 patients. The in-hospital mortality rate was 14% among patients with device migration or embolization and 20.5% among patients who underwent surgery. In-hospital migration or embolization was more common: at hospitals with a lower median annual procedure volume (24 vs. 41 procedures, p<0.0001), with first-generation Watchman versus next-generation Watchman FLX devices (0.08% vs. 0.04%, p=0.0048), with larger LAA ostia (median 23 mm vs. 21 mm, p=0.004), and with a smaller difference between device and LAA ostial size (median difference 4 mm vs. 5 mm, p=0.04). There were no differences by age, sex, hospital type, hospital size, or teaching versus non-teaching status. Of 98,147 patients with 45-day follow-up, device migration or embolization after discharge occurred in 0.06% (n=54) patients and cardiac surgery was performed in 7.4% (n=4) of cases. The 45-day mortality rate was 3.7% (n=2) among patients with post-discharge device migration or embolization. Post-discharge migration or embolization was more common among men (79.7% of events but 58.9% of all procedures, p=0.0019), taller patients (177.9 cm vs. 172 cm, p=0.0005), and those with greater body mass (99.9 kg vs. 85.5 kg, p=0.0055); in contrast to in-hospital events, there were no differences in hospital volume, device characteristics, or LAA characteristics.
Conclusions
Watchman device migration or embolization is rare but associated with high mortality (Figure 1) and frequently requires surgical retrieval. A substantial proportion of all device migration or embolization cases occur after discharge and different patient and procedure characteristics are associated with in-hospital versus post-discharge cases. Given the morbidity and mortality associated with device migration or embolization, risk mitigation strategies and on-site cardiac surgical back-up are of paramount importance.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): National Institutes of Health
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Affiliation(s)
- D Friedman
- Duke University , Durham , United States of America
| | - S Zimmerman
- Yale University , New Haven , United States of America
| | - Z Tan
- Yale University , New Haven , United States of America
| | - J Freeman
- Yale University , New Haven , United States of America
| | - J Curtis
- Yale University , New Haven , United States of America
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Tan Z, Wang C. P-329 Endometrioma impairs oocyte development by extensive premature activation of primordial follicles in an experimental endometrioma mouse model. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.313] [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: 11/13/2022] Open
Abstract
Abstract
Study question
What are the pathological mechanisms of endometrioma-associated poor ovarian function?
Summary answer
Endometrioma prematurely activated primordial follicles and subsequently impaired ovarian functions through disrupting folliculogenesis and deteriorating oocyte quality.
What is known already
Endometrioma is the most common subtype of endometriosis, of which the endometriotic lesions implant in the ovary. Women with endometrioma are usually coupled with disrupted folliculogenesis, hampered ovulation, impaired oocyte quality and undesired infertility, presenting with reduced ovarian reserve, low oocyte retrieval rates and poor fertility outcomes. However the underlying mechanisms of the disrupted folliculogenesis, hampered ovulation and impaired oocyte quality in endometrioma-associated infertility are still unclear.
Study design, size, duration
An experimental mouse model of endometrioma (OMA) was established to study the effects of endometriosis in ovary on the development and functions of follicles. Four to eight mice were included in experimental and sham control groups each. Ovaries were collected 4 weeks after transplantation of endometrial fragments. Follicle counts and specific developmental markers were used to evaluate the development and functions of follicles. Oocyte quality was studied by meiotic competence, cortical distributions and ATP synthesis.
Participants/materials, setting, methods
Minced endometrial tissues from donor mice were inserted into ovarian bursa in recipient mice. Ovarian follicles in different stages were examined and counted manually with Periodic acid-Schiff staining. Protein expressions of FOXO3, AMH and FSHR were detected by immunohistochemistry to characterise the developing primordial, primary/secondary and antral follicles, respectively. Oocytes were collected from oviduct after superovulation and stained with a-tubulin, LCA-FITC to assess maturity.
Main results and the role of chance
Successful establishment of endometriotic lesions in ovarian tissues was confirmed morphologically and histologically with a success rate of 83.33% in recipient mice. In the OMA ovaries, absolute counts of the follicles in each developmental stage showed significant reduction when compared with sham controls. Percentage of primordial follicles was significantly reduced, but percentage of advanced-staged follicles was significantly increased. Expression of FOXO3 in primordial follicles, AMH in developing follicles (primary, secondary) and FSHR in antral follicles were all significantly decreased in OMA group. Oocytes isolated from OMA ovaries had lower number and size than controls. Large proportion of the oocytes had significantly higher abnormal spindle rates, indicating mitotic disruption. Moreover, a large proportion of the oocytes also had impaired cortical granule migration, indicating affected organelle organization.
Limitations, reasons for caution
Studies based on this animal model may not reflect the exact situation in human. Moreover, success rate of the OMA model cannot reach 100%. Other factors contributing to the endometrioma-associated infertility still undetermined in the OMA models.
Wider implications of the findings
The results demonstrated that endometrioma remarkably deteriorated follicular development, and subsequently impaired oocyte quality by premature activation primordial follicles. The underlying deteriorating effects and mechanism might help to develop novel therapeutic targets to improve fertility outcomes in women with endometrioma.
Trial registration number
N/A
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Affiliation(s)
- Z Tan
- the Chinese University of Hong Kong, Obstetrics and gynaecology , hong kong, Hong Kong
| | - C.C Wang
- the Chinese University of Hong Kong, Obstetrics and gynaecology , hong kong, Hong Kong
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Deng Y, Wang W, Zheng Q, Feng Y, Zou Y, Dong H, Tan Z, Zeng X, Zhao Y, Peng D, Yang X, Sun A. Menopausal hormone therapy: what are the problems in the perception of Chinese physicians? Climacteric 2022; 25:413-420. [PMID: 35438051 DOI: 10.1080/13697137.2022.2058391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE This study aimed to investigate Chinese physicians' perception and attitudes toward menopausal hormone therapy (MHT). METHODS This nationwide online survey was conducted in China. Physicians registered in the WeChat groups of the Gynecological Endocrinology Committee of China's Maternal and Child Health Care Association received a message invitation to complete this anonymous online survey from April 2020 to July 2020. Physicians' knowledge of and attitudes toward MHT were surveyed. RESULTS In total, 4672 questionnaires were submitted; only completed questionnaires could be submitted. The message was sent to 6021 doctors, so the response rate was 77.6%. Overall, 77.9-92.9% of physicians knew the common indications and contraindications to MHT. Additionally, 90.6%, 85.4%, 80.7% and 37.5% of physicians thought that MHT would increase the risk of venous thrombosis, breast cancer, endometrial cancer and weight gain, respectively. In total, 58.1% of the physicians mistakenly believed that a sex hormone test was one of the necessary examinations to reassess MHT prescription during follow-up visits. We found that 68.5% of physicians would consider using MHT themselves or recommend MHT to their partners in the future, and 11.4% were currently using MHT. CONCLUSIONS Most Chinese physicians have basic knowledge of MHT. Their misunderstandings about MHT mainly centered on the risks of endometrial cancer, weight gain and the necessary examinations during follow-up visits. These misunderstandings need to be clarified in future professional training programs.
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Affiliation(s)
- Y Deng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| | - W Wang
- Department of Reproductive Medicine, The Second Hospital of Hebei Medical University, Hebei, China
| | - Q Zheng
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Shandong, China
| | - Y Feng
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanchang University, JiangXi, China
| | - Y Zou
- Department of Obstetrics and Gynecology, Hunan Provincial Maternal and Child Health Care Hospital, Hunan, China
| | - H Dong
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Jinzhou, Liaoning, China
| | - Z Tan
- Department of Obstetrics and Gynecology, Xinhui Maternity and Children's Hospital, Guangxi, China
| | - X Zeng
- Department of Gynecology, Guangzhou Women and Children's Medical Centre, Guangdong, China
| | - Y Zhao
- Department of Obstetrics and Gynecology, Xinhui Maternity and Children's Hospital, Guangxi, China
| | - D Peng
- Department of Obstetrics and Gynecology, Zhongda Hospital Southeast Univeisity, Jiangsu, China
| | - X Yang
- Department of Obstetrics and Gynecology, Liuzhou Maternity and Child Healthcare Hospital, GuangXi, China
| | - A Sun
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
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Liu J, Fan Z, Guo W, Gao T, Li S, Xu J, Bai C, Xue R, Zhang L, Xie L, Tan Z. 143P Novel anti-PD-L1 antibody TQB2450 (T) in combination with anlotinib (A) in patients with advanced soft tissue sarcoma (STS), the results from the expanded sample size and updated data. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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12
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Liu Y, Liu J, Tan Z, Jiang X, Wang L, Lu Y, Fu X, Song Q, Zhao L, Yuan S, Bi N, Xu Y, Zhu Z, Zhu G, Li J, Xie C, Ma X, Xiao G, Ge H, Liu H, Zhao J, Liang J, Shen Q, Xu Q, Liu R, Zhou S, Kong W, Zhong W, Jin X, Wang Y, Jiang Y, Fu Z, Xie Y, Cai J, Li Z, Machtay M, Curran W, Kong F. P29.05 Gross Tumor Volume Contouring Variations in Radiation Therapy of Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Liu J, Jiang X, Tan Z, Li Z, Wang Y, Xie Y, Cai J, Zhu G, Li J, Xie C, Ma X, Xiao G, Liu H, Ge H, Zhao J, Liang J, Shen Q, Xu Q, Liu R, Zhou S, Zhong W, Kong W, Jiang Y, Xu Y, Fu Z, Liu Y, Zhu Z, Bi N, Yuan S, Zhao L, Song Q, Lu Y, Fu X, Wang L, Machtay M, Curran W, Kong F. P29.03 Thoracic Organs at Risk (OARs) Contouring Variations and Consensus in Radiation Therapy for Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Tan Z. P–316 A rat model of endometrioma to study endometriosis-related infertility. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.315] [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: 11/14/2022] Open
Abstract
Abstract
Study question
Underlying mechanisms and specific treatment for endometriosis-related infertility are still unclear and lacking. Is there any animal model suitable for the study?
Summary answer
Endometium ligation to ovary fat pad in rats is a more appropriate and successful but less detrimental model of endometrioma for infertility pathology and outcomes.
What is known already
Nonhuman primates (NHP) have been the most representative animal model for endometriosis since they menstruate in a cyclic pattern and develop endometriosis spontaneously as in human. However, the incidence of spontaneous endometriosis in NHP is low and due to ethical concerns and high cost, the application of NHP for endometriosis study is restricted. Rodents (i.e. rats, mice, rabbits) have been used to analyze the pathophysiology of endometriosis. Because rodents do not develop endometriosis spontaneously, it has to be induced surgically. Ovarian endometriosis is the most common type, but previous experimental models were mostly either subcutaneous, peritoneal wall or mesenteric endometriosis.
Study design, size, duration
An animal study to compare different methods of endometrium transplantation to the ovary as potential animal model of endometrioma to study the endometriosis-related infertility. Compared with NHP and other rodents, rats were chosen due to easy access, low cost, good ovary size, short estrus and reproductive cycle and similar endocrine pattern to human beings. For each transplantation method, at least 5 animals were included and followed up in different time points for comparisons.
Participants/materials, setting, methods
To establish ovarian endometriosis or endometrioma model, uterine tissues were collected from donor rats and then transplanted to recipient rats by either adhesion to ovary, ligation to ovary fat pad, or injection underneath tunica albuginea. Vasculature and histology of engrafts, follicle count and morphology of ovary, receptivity markers of endometrium, immune response and inflammatory cytokines of peritoneal cavity and hormonal changes were assessed after 4 days of transplantation. Implantation rates after conception will be examined.
Main results and the role of chance
Compared with other transplantation methods, only ligation of endometrium fragments to ovary fat pad resulted in endometrioma-like lesion in the ovaries. Compare with sham control ovaries, formation of new vessels from surrounding ovarian vessels to the endometriotic engraft assessed by Cellvizio LAB in vivo imaging was identified, indicating active angiogenesis. Morphology and histology of endometriotic cyst were confirmed in the lesion by H&E staining, suggesting functional endometrium. Stroma markers CD140b, CD106 lkand epithelium markers keratin 17/19 and EpCam were found in the ovary cortex, implying integration of endometrium tissue to the ovarian tissues. Decreased AMH expression and antral follicle count in the ovaries suggested defective follicle development. Reduced receptivity markers HOXA10, LIF and ανβ3 integrin expression in uterine endometrium and implantation rate after nature mating or embryo transfer indicated potential impaired endometrial receptivity. Peripheral and peritoneal levels of COX2 and IL–8 were elevated, suggesting inflammatory response. However, estrogen and progesterone levels were not significant different from baseline and other transplantation methods.
Limitations, reasons for caution
This was an animal model, it might not totally reflect the exact pathological changes of endometrioma in human. Current method was a single and short-term transplantation model, monthly endometrial cells engraftment and slow growing lesions without sufficient estrogen supply might limit the establishment of endometrium-like lesions. Further testings are needed.
Wider implications of the findings: Establishment of animal models for endometrioma is vital important to investigate the pathophysiology, underlying mechanism and potential therapy targets for endometriosis-related infertility. Currently such model is still lacking. An appropriate, adequate and effective but less detrimental model of endometrioma can accelerate the scientific research and clinical application in near future.
Trial registration number
N/A
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Affiliation(s)
- Z Tan
- the Chinese University of Hong Kong, Obstetrics & Gynaecology, hong kong, Hong Kong
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15
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Wang Z, Guo F, Dong T, Tan Z, Abdelraof M, Wang Z, Cui J, Jia S. Metabolomic Analysis of Biosynthesis Mechanism of ε-Polylysine Produced by Streptomyces diastatochromogenes. Front Bioeng Biotechnol 2021; 9:698022. [PMID: 34395404 PMCID: PMC8363252 DOI: 10.3389/fbioe.2021.698022] [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: 04/21/2021] [Accepted: 06/25/2021] [Indexed: 12/21/2022] Open
Abstract
ε-Polylysine (ε-PL), a natural preservative with broad-spectrum antimicrobial activity, has been widely used as a green food additive, and it is now mainly produced by Streptomyces in industry. In the previous study, strain 6#-7 of high-yield ε-PL was obtained from the original strain TUST by mutagenesis. However, the biosynthesis mechanism of ε-PL in 6#-7 is still unclear. In this study, the metabolomic analyses of the biosynthesis mechanism of ε-PL in both strains are investigated. Results show that the difference in metabolisms between TUST and 6#-7 is significant. Based on the results of both metabolomic and enzymatic activities, a metabolic regulation mechanism of the high-yield strain is revealed. The transport and absorption capacity for glucose of 6#-7 is improved. The enzymatic activity benefits ε-PL synthesis, such as pyruvate kinase and aspartokinase, is strengthened. On the contrary, the activity of homoserine dehydrogenase in the branched-chain pathways is decreased. Meanwhile, the increase of trehalose, glutamic acid, etc. makes 6#-7 more resistant to ε-PL. Thus, the ability of the mutagenized strain 6#-7 to synthesize ε-PL is enhanced, and it can produce more ε-PLs compared with the original strain. For the first time, the metabolomic analysis of the biosynthesis mechanism of ε-PL in the high-yield strain 6#-7 is investigated, and a possible mechanism is then revealed. These findings provide a theoretical basis for further improving the production of ε-PL.
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Affiliation(s)
- Ziyuan Wang
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
- Tianjin Beiyang Baichuan Biotechnology Co., Ltd., Tianjin, China
| | - Fengzhu Guo
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Tianyu Dong
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Zhilei Tan
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Mohamed Abdelraof
- Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki, Giza, Egypt
| | - Zichen Wang
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Jiandong Cui
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Shiru Jia
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
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16
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Hu H, Quan J, Tan Z, Fu JH, Liang YJ, Li JX. Synthesis and Properties of Dimercury(I) Crystal Network Constructed with Functionalized Pyrazine Sulfonate and Nitrate Linkers. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221050224] [Citation(s) in RCA: 8] [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] [Indexed: 12/12/2022]
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17
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Li W, Lv J, Dong T, Li X, Li X, Tan Z, Jia S. Effects of Amino Acids and Overexpression of dapA Gene on the Production of ε-Poly-L-lysine by Streptomyces diastatochromogenes Strains. Curr Microbiol 2021; 78:2640-2647. [PMID: 33991200 DOI: 10.1007/s00284-021-02510-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 04/25/2021] [Indexed: 12/15/2022]
Abstract
In this study, the strain Streptomyces diastatochromogenes 6#-7, which efficiently synthesizes ε-Poly-L-lysine, was studied and the effects of 18 amino acids and overexpression of dapA gene on the fermentation efficiency of ε-PL by S. diastatochromogenes were investigated. It was shown that L-proline, L-lysine, L-isoleucine, and L-threonine could promote the production of ε-PL. Moreover, the overexpression of the dihydrodipicolinate synthase gene (dapA) helped improve the fermentation performance of S. diastatochromogenes. The maximum ε-PL yield of the overexpressing strain (S. diastatochromogenes 12#-2) increased by 17.5% compared with the original strain in 500 mL shake flask. When the fermentation was conducted in a 5-L fermenter, the fermentation duration was extended by 48 h, and ε-PL yield reached 30.54 g/L, which was a 19.8% increase compared to the original strain. The results of this study offered a promising approach to augment the production of ε-PL from Streptomyces, thus paving the way to reduce the cost of product ε-PL and enhance the fermentation efficiency of ε-PL production.
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Affiliation(s)
- Wenchao Li
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, PR China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, PR China
| | - Junge Lv
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, PR China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, PR China
| | - Tianyu Dong
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, PR China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, PR China
| | - Xinying Li
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, PR China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, PR China
| | - Xiaona Li
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, PR China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, PR China
| | - Zhilei Tan
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, PR China.
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, PR China.
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, PR China.
| | - Shiru Jia
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, PR China.
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, PR China.
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, PR China.
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18
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Zhao H, Tan Z, He L, Zhu S, Yan R, Kou H, Peng J. [Amiodarone promotes heat-induced apoptosis, inflammation and oxidative stress in mouse HL1 atrial myocytes]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:406-411. [PMID: 33849832 DOI: 10.12122/j.issn.1673-4254.2021.03.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the injury types of atrial myocytes induced by heat exposure and the effect of amiodarone on heat-induced injuries in atrial myocytes. OBJECTIVE The optimal temperature for heat exposure and optimal concentration of amiodarone were determined by measuring the cell viability exposed to different temperatures and different concentrations of amiodarone. Heat exposure of HL1 atrial myocytes was conducted using a water bath, and the effect of amiodarone on cell viability was assessed with MTS method; cell apoptosis was detected using flow cytometry, and the levels of IL-1β, IL-6, TNF-α, SOD and MDA were detected with enzyme-linked immunosorbent assay (ELISA). OBJECTIVE Compared with the blank control cells, the cells exposed to a temperature of 52 ℃ showed a significantly decreased survival rate and a lowered SOD activity (P < 0.001) with increased IL-1β and MDA levels (P < 0.01) and markedly increased apoptosis rate and IL-6 level (P < 0.001). Compared with the heat exposure group, amiodarone resulted in significantly decreased survival rate of the atrial myocytes (P < 0.01), obviously decreased SOD activity (P < 0.05), and increased cell apoptosis rate (P < 0.05) and IL-1β, IL-6, MDA and TNF-α levels (P < 0.01 or 0.001). OBJECTIVE Heat exposure induces apoptosis, inflammation and oxidative stress in mouse HL1 atrial myocytes, and amiodarone can enhance the effects of heat exposure to aggravate the cell injuries.
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Affiliation(s)
- H Zhao
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Tan
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L He
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S Zhu
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - R Yan
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - H Kou
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Peng
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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19
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Tan Z, Wang Y, Zhu Z, Liu C. P36.02 CHEK1: Unfavourable Prognostic Hub Gene and Potential Therapeutic Target for Lung Adenocarcinoma. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Tan Z, Lu P, Adewole D, Diarra M, Gong J, Yang C. Iron requirement in the infection of Salmonella and its relevance to poultry health. J APPL POULTRY RES 2021. [DOI: 10.1016/j.japr.2020.09.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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21
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Ji S, Li J, Chang L, Zhao C, Jia R, Tan Z, Liu R, Zhang Y, Li Y, Yin G, Guan Y, Xia X, Yi X, Xu J. Peripheral blood T-cell receptor repertoire as a predictor of clinical outcomes in gastrointestinal cancer patients treated with PD-1 inhibitor. Clin Transl Oncol 2021; 23:1646-1656. [PMID: 33583004 DOI: 10.1007/s12094-021-02562-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/28/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND Identifying valid biomarkers for patient selection impressively promotes the success of anti-PD-1 therapy. However, the unmet need for biomarkers in gastrointestinal (GI) cancers remains significant. We aimed to explore the predictive value of the circulating T-cell receptor (TCR) repertoire for clinical outcomes in GI cancers who received anti-PD-1 therapy. METHODS 137 pre- and 79 post-treated peripheral blood samples were included. The TCR repertoire was evaluated by sequencing of complementarity-determining region 3 (CDR3) in the TRB gene. The Shannon index was used to measure the diversity of the TCR repertoire, and Morisita's overlap index was used to determine TCR repertoire similarities between pre- and post-treated samples. RESULTS Among all enrolled patients, 76 received anti-PD-1 monotherapy and 61 received anti-PD-1 combination therapy. In the anti-PD-1 monotherapy cohort, patients with higher baseline TCR diversity exhibited a significantly higher disease control rate (77.8% vs. 47.2%; hazard ratio [HR] 3.92; 95% confidence interval [CI] 1.14-13.48; P = 0.030) and a longer progression-free survival (PFS) (median: 6.47 months vs. 2.77 months; HR 2.10; 95% CI 1.16-3.79; P = 0.014) and overall survival (OS) (median: NA vs. 8.97 months; HR 3.53; 95% CI 1.49-8.38; P = 0.004) than those with lower diversity. Moreover, patients with a higher TCR repertoire similarity still showed a superior PFS (4.43 months vs. 1.84 months; HR 13.98; 95% CI 4.37-44.68; P < 0.001) and OS (13.40 months vs. 6.12 months; HR 2.93; 95% CI 1.22-7.03; P = 0.016) even in the cohort with lower baseline diversity. However, neither biomarker showed predictive value in the anti-PD-1 combination therapy cohort. Interestingly, the combination of TCR diversity and PD-L1 expression can facilitate patient stratification in a pooled cohort. CONCLUSION The circulating TCR repertoire can serve as a predictor of clinical outcomes in anti-PD-1 therapy in GI cancers.
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Affiliation(s)
- S Ji
- Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China.,Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - J Li
- Geneplus-Beijing Institute, Beijing, China
| | - L Chang
- Geneplus-Beijing Institute, Beijing, China
| | - C Zhao
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - R Jia
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - Z Tan
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - R Liu
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - Y Zhang
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - Y Li
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - G Yin
- Geneplus-Beijing Institute, Beijing, China
| | - Y Guan
- Geneplus-Beijing Institute, Beijing, China
| | - X Xia
- Geneplus-Beijing Institute, Beijing, China
| | - X Yi
- Geneplus-Beijing Institute, Beijing, China
| | - J Xu
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China.
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22
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Yang S, Wang X, Liao W, Li L, Tan Z, Zhu L, Hu P, Cui X, Xing W. High-resolution MRI of the vessel wall helps to distinguish moyamoya disease from atherosclerotic moyamoya syndrome. Clin Radiol 2021; 76:392.e11-392.e19. [PMID: 33583567 DOI: 10.1016/j.crad.2020.12.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 12/24/2020] [Indexed: 11/25/2022]
Abstract
AIM To evaluate the value of high-resolution magnetic resonance imaging of the vessel wall (VWI) for differentiating moyamoya disease (MMD) from atherosclerotic moyamoya syndrome (AS-MMS). MATERIALS AND METHODS Twenty-one patients with MMD or AS-MMS were assessed retrospectively by two independent raters regarding and magnetic resonance angiography (MRA) stage grading score; collateral development in the lateral fissure and basal ganglia on MRA; and pattern of the thickening of the arterial wall; presence, degree, and pattern of enhancement; presence and distribution of deep tiny flow voids (DTFVs) and collateral development in the lateral fissure and basal ganglia on VWI. After univariate analysis between the two groups, logistic regression models based on imaging findings of MRA or VWI were implemented respectively, and receiver operating characteristic (ROC) curves were generated to compare the discriminatory power of the two imaging methods for diagnosis of MMD. Interrater agreement was analysed using an unweighted Cohen's κ or interclass correlation coefficient (ICC). RESULTS MMD manifested as more concentric thickening, more homogeneous enhancement, higher presence of DTFV, smaller outer-wall boundary area of stenosis or occlusion, and smaller remodelling index on VWI. After Bonferroni-Holm correction for multiple comparisons, for AS-MMS, collaterals in both the lateral fissure and basal ganglia were not usually present on either MRA or VWI. The diagnostic performance of the multivariate logistic regression model based on VWI with an accuracy of 87.1% for classification was higher than MRA. Interrater agreement was moderate or substantial for all the imaging findings. CONCLUSIONS VWI might be a useful and feasible method for differentiating MMD from AS-MMS and a prospective tool for guiding first-line treatment.
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Affiliation(s)
- S Yang
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - X Wang
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - W Liao
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - L Li
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Z Tan
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - L Zhu
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - P Hu
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - X Cui
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - W Xing
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China.
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Zhang X, Wu J, Zhou C, Tan Z, Jiao J. Spatial and temporal organization of jejunal microbiota in goats during animal development process. J Appl Microbiol 2020; 131:68-79. [PMID: 33300169 DOI: 10.1111/jam.14961] [Citation(s) in RCA: 3] [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: 09/26/2020] [Revised: 11/25/2020] [Accepted: 11/30/2020] [Indexed: 12/31/2022]
Abstract
AIMS This research aimed to investigate the temporal bacterial colonization relating to non-rumination, transition and rumination phases, together with the spatial organization of microbial community in the jejunal mucosa and digesta of goats. METHODS AND RESULTS This study explored the colonization programme of the jejunal microbiota by employing 16S rRNA amplicon sequencing. The colonization pattern of jejunal bacterial community exhibited an age- and gut region-dependent progression during animal development process. Approximately 268 bacterial signatures contributed to the discrimination between gut regions, with Lactobacillus, Ruminococcus, Eubacterium and Clostridium_sensu_stricto were enriched in the jejunal digesta, and Bacteroides and unclassified bacteria were enriched in the jejunal mucosa. Intriguingly, a shift from Lactobacillus to Butyrivibrio, Eubacterium and Ruminococcus after d 20 was observed for jejunal digesta. In mucosa, Bifidobacterium, Corynebacterium, Faecalibacterium and Roseburia increased with age (P < 0·05) while Arcobacter, Bacteroides and Porphyromonas peaked at d 10. CONCLUSIONS The jejunal bacterial community was settled after solid starter provision, which may mark the potential boundary of a timeframe for intervention in goats. The spatial heterogeneity highlighted the complicacy of ecological niches during manipulation of gut microbiota. SIGNIFICANCE AND IMPACT OF THE STUDY The present study extended the understanding of microbial programming and niche specific in the jejunum among different life stages and the basal cognition of persistent enhancement of nutrient utilization and decline of enteric diseases in ruminants.
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Affiliation(s)
- X Zhang
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China.,University of the Chinese Academy of Sciences, Beijing, China
| | - J Wu
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China.,University of the Chinese Academy of Sciences, Beijing, China
| | - C Zhou
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
| | - Z Tan
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
| | - J Jiao
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
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Xu JJ, Zhang LZ, Zhang QH, Guo HW, Tan Z, Wang JF, Jiang LH, Zheng CM, Ge MH, Lan XB. [Clinical application of the gasless unilateral axillary approach in endoscopic thyroid surgery]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:913-920. [PMID: 33036505 DOI: 10.3760/cma.j.cn115330-20200225-00126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the efficacy, safety and advantages of gasless unilateral axillary approach (GUAA) in endoscopic thyroid surgery. Methods: A total of 334 patients who underwent the GUAA endoscopic thyroid surgery (GUAA group) or conventional open thyroid surgery (OS group) in the Department of Head and Neck Surgery of Zhejiang Cancer Hospital from January 2017 to June 2018 were retrospectively analyzed. There were 45 males and 289 females, aged from 12 to 72 years old, of whom 139 patients were assigned to GUAA group and 195 patients to OS group. Pathological results included papillary thyroid carcinoma (282 cases), nodular goiter (41 cases) and thyroid adenoma (11 cases). Surgical exploration development curve of GUAA group was drawn and was divided into two parts: the technical exploration stage and the technical stable stage. Surgical efficiency, incidences of complications, and incision satisfaction were compared between GUAA group in technical stable stage and OS group. SPSS 25.0 software was adopted for statistical analysis. Results: The mean age in GUAA group was younger than that in OS group, with a significant difference [(35.3±9.5) years vs. (48.1±10.6) years, t=11.31, P<0.01]. The cases in the endoscope group were divided into technical exploration stage for 51 cases and technical stable stage for 88 cases according to the exploration and development curve. In unilateral radical thyroidectomy and unilateral thyroid lobectomy, the mean operation time [(90.6±18.6) min and (93.5±22.0) min] and postoperative drainage volumes [(121.5±87.6) ml and (155.5±69.1) ml] of GUAA group in the stable stage were more than those of OS group [(61.6±15.6) min and (46.5±8.4) min] and [(93.2±42.3) ml and (78.9±48.7) ml]. The difference was statistically significant (t=12.28, 7.23, 3.35 and 3.05 respectively, all P<0.05), but there were no significant differences in surgical bleeding volumes between two groups [(12.7±6.8) ml vs. (13.5±7.7) ml, t=0.74, P>0.05 and (16.3±14.1) ml vs. (11.9±5.1) ml, t=1.05, P>0.05]. Compared with OS group, GUAA group had the lower incidence of anterior cervical discomfort during swallowing (2.3% vs. 29.2%, P<0.01) and the higher incision satisfaction score (1.1±0.5 vs. 2.8±0.7, t=21.12, P<0.01), however, GUAA group had the higher incidence of supraclavicular (or infraclavicular) numbness after surgery (5.7% vs. 0, P<0.01). And there was no significant difference in the incidences of temporary recurrent laryngeal nerve injury, bleeding, hematoma, infection, lymphatic leakage or chylous leakage after surgery between two groups (P>0.05). Conclusion: GUAA endoscopic thyroid surgery is a safe method with high cosmetic satisfaction.
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Affiliation(s)
- J J Xu
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - L Z Zhang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Q H Zhang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - H W Guo
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - Z Tan
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - J F Wang
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - L H Jiang
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - C M Zheng
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - M H Ge
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - X B Lan
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China
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Diermayr V, Sarma S, Lee K, Ng P, Tong C, Soon V, Gan B, Qu Z, Tan Z, Han X, Phua L, Poh H, Gan A, Camat D, Weng R, Cheong E, Inoue M, Lezhava A, Tan I, Lim T. 99P Development of a qRT-PCR-based diagnostic test to identify colorectal cancer patients with recurrent R-Spondin gene fusions. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Ma D, Shen HT, Zhao JJ, Chang Q, Tian LB, Ma Y, Li L, Tan Z. Grape-seed polyphenols inhibit AAA in mice via regulation of macrophage polarization. ACTA ACUST UNITED AC 2020; 121:680-685. [PMID: 32990018 DOI: 10.4149/bll_2020_106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
AIM Abdominal aortic aneurysm (AAA) is characterized by macrophage polarization, and at present, no drug therapy is available. Although grape-seed polyphenols (GSP) showed an anti-AAA effect, the role of GSP in the phenotype shift in macrophages remains unknown. METHOD The main phenolic compounds in GSP were determined by LC-MS. Male C57BL/6 mice were divided into four equal groups, namely sham group, CaPO4 group, CaPO4+GSP low-dose group, and CaPO4+GSP high-dose group. GSP was administered intragastrically after CaPO4 application. Molecular expressions were histologically evaluated and analyzed by various staining assays and FACS. RESULTS GSP administration inhibited CaPO4-induced AAA formation, which correlated with a decrease in macrophage infiltration and retainment of vascular smooth muscle layer as compared to those in the CaPO4 group. FACS assay showed that the GSP administration dose-dependently decreased the CD54 expression (low-dose group: 11.4 ± 2.1 % and high-dose group: 4.8 ± 1.4 % vs 23.2 ± 3.6 %; p < 0.05 and p < 0.01, respectively) and increased the CD206 expression of F4/80-positive cells in GSP-administered groups as compared with that in CaPO4-injured aortas in the CaPO4 group (low-dose group: 22.4 ± 3.3 % and high-dose group: 26.7 ± 4.2 % vs 8.1 ± 1.3 %; p < 0.05 and p < 0.01, respectively). CONCLUSIONS GSP could be a pharmacologically potent agent in the treatment of AAA (Tab. 1, Fig. 3,Ref. 20). Text in PDF www.elis.sk Keywords: grape-seed polyphenols, abdominal aortic aneurysm, macrophage, inflammatory, polarization.
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Wang X, Zhang Y, Zhao M, Mao XC, Tan Z, Shang JB, Wang XL, Wang KJ. [Predictive analysis of distant metastasis after primary treatment of papillary thyroid cancer in patients under 18 years old]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:664-670. [PMID: 32668875 DOI: 10.3760/cma.j.cn115330-20200115-00025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the distant metastasis after primary treatment of papillary thyroid cancer (PTC) in children and adolescents. Methods: A retrospective analysis of 180 cases (54 boys and 126 girls, with an age range of 6-18 years) with PTC treated at the Chinese Medical Academy Cancer Hospital and Zhejiang Cancer Hospital from January 1, 2001 to December 31, 2014 was performed. Patients' clinical and pathological data were collected. The follow-up results were statistically analyzed. The distant metastasis rate during the follow-up period was analyzed by the Kaplan-Meier method. Log-Rank test was used for univariate analysis and Cox regression model was established in multivariate analysis. Results: Twenty-four cases (13.3%) had distant metastases during following-up with a median of 92 months. The Log-Rank test showed that the younger age ≤15 years old (χ(2)=11.803, P=0.001), the larger tumor diameter >20 mm (χ(2)=5.776, P=0.016), multifocal (χ(2)=11.205, P=0.001), bilateral tumor distribution (χ(2)=19.804, P=0.001), invaded capsule (χ(2)=10.808, P=0.001), and bilateral lymph nodes metastasis (χ(2)=6.278, P=0.012) were risk factors for distant metastasis after initial treatment. The Cox regression analysis showed that age ≤15 years (hazard ratio [95% confidence interval]: 4.08[1.504-11.111], P=0.006) and bilateral tumor distribution (hazard ratio [95% confidence interval]: 4.77[1.903-11.966], P=0.001) were independent risk factors for distant metastasis after initial treatment. The risk factors for local recurrence and distant metastasis were similar, but the local recurrence could not be a significant predictor for distant metastasis. It was indicated that distant metastasis rate was lower in patients with total thyroidectomy in multifocal lesions groups (χ(2)=5.891, P=0.015). Conclusions: Age, tumor size, invaded capsule, bilateral lymph nodes metastasis, multifocal and bilateral lesions are factors for predicting distant metastasis after primary treatment of PTC in children and adolescents. Total thyroidectomy is recommended for patients with multifocal and bilateral lesions.
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Affiliation(s)
- X Wang
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
| | - Y Zhang
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - M Zhao
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
| | - X C Mao
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
| | - Z Tan
- Department of Head Neck and Thyroid Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, China
| | - J B Shang
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
| | - X L Wang
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - K J Wang
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
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Tan Z, Koh H, Murugan P, Talchai S, Khemarangsan V. Improved self-renewal and differentiation potentials of mesenchymal Stem Cells by HPL-based xeno free Cell Rev™ mSC ExHQ 2.0. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Hou Y, Wang F, Tan Z, Cui J, Jia S. Antifungal mechanisms of ε-poly-L-Lysine with different molecular weights on Saccharomyces cerevisiae. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-019-0466-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Tan Z, Chan S, Bin Abdul Rahman A, Chandramohan S, Damodharan K, Gogna A, Irani F, Leong S, Lo R, Karaddi Venkatanarasimha N, Patel A, Tan B, Too C, Zhuang K, Bin Sulaiman M, Tan C, Tze Tec C, Win H. 3:18 PM Abstract No. 15 Cutting balloon followed by drug-eluting balloon angioplasty for recurrent venous lesions in dialysis access; interim analysis of a single-arm prospective observational study. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Yang K, Zhang Z, Li Y, Chen S, Chen W, Ding H, Tan Z, Ma Z, Qiao Z. Expression and distribution of HIF-1α, HIF-2α, VEGF, VEGFR-2 and HIMF in the kidneys of Tibetan sheep, plain sheep and goat. Folia Morphol (Warsz) 2020; 79:748-755. [PMID: 32020576 DOI: 10.5603/fm.a2020.0011] [Citation(s) in RCA: 3] [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: 12/19/2019] [Revised: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND The objective of this study was to detect the expression and distribution characteristics of five proteins (the hypoxia-inducible factor 1alpha [HIF-1a], HIF-2a, vascular endothelial growth factor [VEGF], VEGF-2 receptor [VEGFR-2] and hypoxia-induced mitogenic factor [HIMF]) in kidney of Tibetan sheep, plain sheep and goat. The results will provide the basic information for the comparative study of sheep breeds living at different altitudes. MATERIALS AND METHODS The kidney tissues were collected from healthy adult Tibetan sheep, plain sheep and goats and made into paraffin sections. Histological characteristics were assessed by haematoxylin and eosin staining. Expressions of HIF-1a, HIF-2a, VEGF, VEGFR-2 and HIMF proteins were measured by immunohistochemical staining. RESULTS Immunohistochemistry results showed that the positive expression signals of HIF-1a, HIF-2a, VEGF and VEGFR-2 were detected in epithelial cells of renal tubules and collecting tubules, renal corpuscles in the kidneys of the three sheep breeds. Positive expression signals of HIMF were detected in epithelial cells of proximal tubules and distal tubules in Tibetan sheep and epithelial cells of distal tubules in goat. Immunostaining intensity of HIF-1a, HIF-2a, VEGF and VEGFR-2 proteins in Tibetan sheep was significantly higher than that in both plain sheep and goat (p < 0.05). Immunostaining intensity of HIMF in Tibetan sheep was higher than goat (p < 0.05). Positive expression signals of HIMF were not detected in plain sheep. CONCLUSIONS The expression and distribution characteristics of HIF-1a, HIF-2a, VEGF, VEGFR-2 and HIMF in the studied kidney tissues suggested that these proteins may be related to the physiological regulation of Tibetan sheep kidney in hypoxia environment, and therefore might be important regulating proteins for Tibetan sheep to adapt to high altitude hypoxia environment.
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Affiliation(s)
- K Yang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - Z Zhang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China.
| | - Y Li
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - S Chen
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - W Chen
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - H Ding
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - Z Tan
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - Z Ma
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, P.R. China
| | - Z Qiao
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, P.R. China
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Abstract
Summary
Propensity scores are widely used with inverse probability weighting to estimate treatment effects in observational studies. We study calibrated estimation as an alternative to maximum likelihood estimation for fitting logistic propensity score models. We show that, with possible model misspecification, minimizing the expected calibration loss underlying the calibrated estimators involves reducing both the expected likelihood loss and a measure of relative errors between the limiting and true propensity scores, which governs the mean squared errors of inverse probability weighted estimators. Furthermore, we derive a regularized calibrated estimator by minimizing the calibration loss with a lasso penalty. We develop a Fisher scoring descent algorithm for computing the proposed estimator and provide a high-dimensional analysis of the resulting inverse probability weighted estimators, leveraging the control of relative errors of propensity scores for calibrated estimation. We present a simulation study and an empirical application to demonstrate the advantages of the proposed methods over maximum likelihood and its regularization. The methods are implemented in the R package RCAL.
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Affiliation(s)
- Z Tan
- Department of Statistics, Rutgers University, 110 Frelinghuysen Road, Piscataway, New Jersey 08854, U.S.A
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Elghandour MMY, Khusro A, Adegbeye MJ, Tan Z, Abu Hafsa SH, Greiner R, Ugbogu EA, Anele UY, Salem AZM. Dynamic role of single-celled fungi in ruminal microbial ecology and activities. J Appl Microbiol 2019; 128:950-965. [PMID: 31463982 DOI: 10.1111/jam.14427] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 05/05/2019] [Revised: 08/05/2019] [Accepted: 08/16/2019] [Indexed: 12/24/2022]
Abstract
In ruminants, high fermentation capacity is necessary to develop more efficient ruminant production systems. Greater level of production depends on the ability of the microbial ecosystem to convert organic matter into precursors of milk and meat. This has led to increased interest by animal nutritionists, biochemists and microbiologists in evaluating different strategies to manipulate the rumen biota to improve animal performance, production efficiency and animal health. One of such strategies is the use of natural feed additives such as single-celled fungi yeast. The main objectives of using yeasts as natural additives in ruminant diets include; (i) to prevent rumen microflora disorders, (ii) to improve and sustain higher production of milk and meat, (iii) to reduce rumen acidosis and bloat which adversely affect animal health and performance, (iv) to decrease the risk of ruminant-associated human pathogens and (v) to reduce the excretion of nitrogenous-based compounds, carbon dioxide and methane. Yeast, a natural feed additive, has the potential to enhance feed degradation by increasing the concentration of volatile fatty acids during fermentation processes. In addition, microbial growth in the rumen is enhanced in the presence of yeast leading to the delivery of a greater amount of microbial protein to the duodenum and high nitrogen retention. Single-celled fungi yeast has demonstrated its ability to increase fibre digestibility and lower faecal output of organic matter due to improved digestion of organic matter, which subsequently improves animal productivity. Yeast also has the ability to alter the fermentation process in the rumen in a way that reduces methane formation. Furthermore, yeast inclusion in ruminant diets has been reported to decrease toxins absorption such as mycotoxins and promote epithelial cell integrity. This review article provides information on the impact of single-celled fungi yeast as a feed supplement on ruminal microbiota and its function to improve the health and productive longevity of ruminants.
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Affiliation(s)
- M M Y Elghandour
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Estado de México, México
| | - A Khusro
- Research Department of Plant Biology and Biotechnology, Loyola College, Nungambakkam, Chennai, Tamil Nadu, India
| | - M J Adegbeye
- Department of Animal Science, College of Agriculture and Natural Sciences, Joseph Ayo Babalola University, Ikeji-Arakeji, Ilesha, Nigeria
| | - Z Tan
- Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Hunan, P.R. China
| | - S H Abu Hafsa
- Department of Livestock Research, Arid Lands Cultivation Research Institute, City of Scientific Research and Technological Applications, New Borg El-Arab, Alexandria, Egypt
| | - R Greiner
- Department of Food Technology and Bioprocess Engineering, Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Karlsruhe, Germany
| | - E A Ugbogu
- Department of Biochemistry, Abia State University, Uturu, Abia State, Nigeria
| | - U Y Anele
- North Carolina Agricultural and Technical State University, Greensboro, NC, USA
| | - A Z M Salem
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Estado de México, México
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Hou Y, Gao B, Cui J, Tan Z, Qiao C, Jia S. Combination of multi-enzyme expression fine-tuning and co-substrates addition improves phenyllactic acid production with an Escherichia coli whole-cell biocatalyst. Bioresour Technol 2019; 287:121423. [PMID: 31103936 DOI: 10.1016/j.biortech.2019.121423] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/02/2019] [Accepted: 05/03/2019] [Indexed: 06/09/2023]
Abstract
The aim of this study was to develop an environmentally safe and efficient method for phenyllactic acid (PLA) production using whole-cell cascade catalysis with l-amino acid deaminase (l-AAD), lactate dehydrogenase (LDH), and formate dehydrogenase (FDH). The PPA titer was low due to relatively low expression of LDH, intermediate accumulation, and lack of cofactors. To address this issue, ribosome binding site regulation, gene duplication, and induction optimization were performed to increased the PLA titer to 43.8 g/L. Then co-substrates (glucose, yeast extract, and glycerol) were used to increase NADH concentration and cell stability, resulting that the PLA titer was increased to 54.0 g/L, which is the highest reported production by biocatalyst. Finally, glucose was replaced with wheat straw hydrolysate as co-substrate to decrease the cost. Notably, the strategies reported herein may be generally applicable to other whole-cell cascade biocatalysts.
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Affiliation(s)
- Ying Hou
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, 300457 Tianjin, China.
| | - Bo Gao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, 300457 Tianjin, China
| | - Jiandong Cui
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, 300457 Tianjin, China
| | - Zhilei Tan
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, 300457 Tianjin, China
| | - Changsheng Qiao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Peiyang Biotrans Co., Ltd, Tianjin 300457, China
| | - Shiru Jia
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, 300457 Tianjin, China.
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Wang ZS, Tan Z, Wu ZH, Zhan SX, Guo WD, Liu SG, Zhang L. Identification of downstream target genes regulated by CX43 in hepatocellular carcinoma. Neoplasma 2019; 66:870-878. [PMID: 31307202 DOI: 10.4149/neo_2018_181225n995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 03/20/2019] [Indexed: 11/08/2022]
Abstract
The aim of study was to identify the downstream target genes of CX43 by Human Transcriptome Array. Therefore, a gene microarray was generated which consists of CX43-overexpressed hepatocellular carcinoma (HCC) cells transfected with the constructed plasmid and negative controls to identify candidate genes. Integrated bioinformatic analysis was used to clarify biological functions of the identified genes, including Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway, protein-protein interaction network, and survival analysis. The candidate genes were further validated by qRT-PCR in liver cancer tissues and CX43-silenced HCC cells. We have found the mRNA and protein levels of CX43 significantly upregulated in HCC cells transfected with CX43 constructed plasmid. We identified 928 differentially expressed genes including 394 upregulated and 534 downregulated genes, enriched in the cancer related functions and pathways by GO and KEGG pathway analysis. The protein-protein interaction network revealed 9 hub genes in this study. Statistical analysis indicated that upregulation of RALA and SRC was associated with poor prognosis in liver cancer. The differential expression of 2 candidate genes were further validated in HCC cells and tissues. In conclusion, protein-coding genes RALA and SRC could be target genes of CX43 and therapeutic targets for hepatocellular carcinoma.
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Affiliation(s)
- Z S Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Z Tan
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Z H Wu
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - S X Zhan
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - W D Guo
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - S G Liu
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - L Zhang
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
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Talchai S, Tan Z, Kemarangsan V. Effective generation of autologous corneal keratocytes from mesenchymal stem cells by cell revTM mSC diffKera for clinical use. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.03.460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tan Z, Murugan P, Koh H, Talchai S, Kemarangsan V, Sirivisoot S. Extended expansion of high quality corneal stromal keratocytes on xeno free cell revTM kera ExHQ for therapeutic applications. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.03.461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Tan Z, Shi Y, Xing B, Hou Y, Cui J, Jia S. The antimicrobial effects and mechanism of ε-poly-lysine against Staphylococcus aureus. BIORESOUR BIOPROCESS 2019. [DOI: 10.1186/s40643-019-0246-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Ren S, Li C, Tan Z, Hou Y, Jia S, Cui J. Carbonic Anhydrase@ZIF-8 Hydrogel Composite Membrane with Improved Recycling and Stability for Efficient CO 2 Capture. J Agric Food Chem 2019; 67:3372-3379. [PMID: 30807136 DOI: 10.1021/acs.jafc.8b06182] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [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: 05/26/2023]
Abstract
In this study, carbonic anhydrase (CA, EC 4.2.1.1) molecules were embedded into metal-organic frameworks (MOFs) via co-precipitation (CA@ZIF-8), and then these CA@ZIF-8 nanocomposites were encapsulated in the poly(vinyl alcohol) (PVA)-chitosan (CS) hydrogel networks to prepare CA@ZIF-8-PVA-CS composite hydrogels (PVA/CS/CA@ZIF-8) with high activity, stability, and reusability. The immobilization efficiency of CA was greater than 70%, suggesting the high immobilization efficiency. The prepared PVA/CS/CA@ZIF-8 composite membranes displayed excellent higher stability against a high temperature, denaturants, and acid than free CA and CA@ZIF-8. Furthermore, these membranes exhibited an excellent performance for CO2 capture. The amount of calcium carbonate obtained by PVA/CS/CA@ZIF-8 hydrogel membranes was 20- and 1.63-fold than free CA and CA@ZIF-8 composites, respectively. Furthermore, the hydrogel membranes exhibited superior reusability and mechanical strength. The hydrogel membrane maitained 50% of its original activity after 11 cycles. However, CA@ZIF-8 completely lost activity. These results indicated that the PVA/CS/CA@ZIF-8 membranes can be efficiently applied to capture CO2 sequestration.
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Affiliation(s)
- Sizhu Ren
- Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control , Tianjin University of Science and Technology , 29 13th Avenue , Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457 , People's Republic of China
| | - Conghai Li
- Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control , Tianjin University of Science and Technology , 29 13th Avenue , Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457 , People's Republic of China
| | - Zhilei Tan
- Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control , Tianjin University of Science and Technology , 29 13th Avenue , Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457 , People's Republic of China
| | - Ying Hou
- Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control , Tianjin University of Science and Technology , 29 13th Avenue , Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457 , People's Republic of China
| | - Shiru Jia
- Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control , Tianjin University of Science and Technology , 29 13th Avenue , Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457 , People's Republic of China
| | - Jiandong Cui
- Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control , Tianjin University of Science and Technology , 29 13th Avenue , Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457 , People's Republic of China
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Chu H, Fang X, Tan Z, Zhen X, Wu RL, Li XP, Wang GS, Wang YP, Li XM. [Correlation between the changes of innate lymphoid cells in peripheral blood of systemic lupus erythematosus and its clinical significance]. Zhonghua Yi Xue Za Zhi 2019; 99:169-173. [PMID: 30669757 DOI: 10.3760/cma.j.issn.0376-2491.2019.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the function and role of innate lymphoid cells in the pathogenesis of systemic lupus erythematosus (SLE) at different disease activity levels. Methods: From Nov 2017 to May 2018, 40 patients with SLE and 15 age-matched healthy non-immune-related diseases controls were enrolled from Anhui provincial hospital. According to the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI)-2K, the patients were divided into active group (n=20) and remission group (n=20). The frequency of ILCs, B cells, CD4+T and CD8+T cells from peripheral blood mononuclear cells (PBMCs) was detected by flow cytometry. The subsets of ILCs in each group were compared with the subsets of B cells and T cell respectively. The levels of IL-4, IL-33 and IFN-γ in each group were tested by ELISA. Result: Compared with the control group, ILC1 percentage was significantly increased in SLE active group [(22.33%±2.52%) vs (14.56%±1.28%), P=0.018 1]; ILC2 percentage was decreased significantly in both remission group [(19.67%±1.83%) vs (42.48%±3.46%), P<0.000 1] and active group [(8.67%±0.83%) vs (19.67%±1.83%), P<0.000 1]; ILC3 percentage was decreased significantly in active group [(5.72%±1.08%) vs (14.35%±2.40%), P=0.001 3]. SLEDAI score was negatively correlated with the percentage of ILC2 (P=0.023 9) in all patients. The percentage of ILCs in the remission group (P=0.046 2) and activity group (P=0.003 7) were both increased significantly. Moreover, the percentage of ILC2 in active group was negatively correlated with CD4+T cells (P=0.030 8), and the serum IgG was negatively correlated with ILC2% in all patients (P=0.013 8). Compared with control group or remission group, the levels of IFN-γ (F=10.91, P=0.000 1) and IL-4 (F=6.046, P=0.004 7) in active group were remarkable higher. However, IL-33 was significantly reduced in active group (F=6.645, P=0.002 7). The percentage of ILC2 (r=0.154 3, P=0.028 8) and ILC3 (r=0.313 6, P=0.001 1) in all patients with SLE were positively correlated with the level of IL-4. Conclusion: The percentage of ILCs is related to disease activity, and ILCs play a "double-edged" role in the pathogenesis of SLE. Its function and mechanism are worth further exploration.
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Affiliation(s)
- H Chu
- Department of Rheumatology and Immunology, Anhui Provincial Hospital affiliated with Anhui Medical University, Hefei 230001, China
| | - X Fang
- Department of Rheumatology and Immunology, Anhui Provincial Hospital affiliated with Anhui Medical University, Hefei 230001, China
| | - Z Tan
- Department of Rheumatology and Immunology, Anhui Provincial Hospital affiliated with Anhui Medical University, Hefei 230001, China
| | - X Zhen
- Department of Rheumatology and Immunology, Anhui Provincial Hospital affiliated with Anhui Medical University, Hefei 230001, China
| | - R L Wu
- Department of Rheumatology and Immunology, Anhui Provincial Hospital affiliated with Anhui Medical University, Hefei 230001, China
| | - X P Li
- Department of Rheumatology and Immunology, Anhui Provincial Hospital affiliated with Anhui Medical University, Hefei 230001, China
| | - G S Wang
- Department of Rheumatology and Immunology, Anhui Provincial Hospital affiliated with Anhui Medical University, Hefei 230001, China
| | - Y P Wang
- Centre for Transplantation and Renal Research, Westmead Insitute for Medical Research, the University of Sydney, Westmead 2145 NSW, Australia
| | - X M Li
- Department of Rheumatology and Immunology, Anhui Provincial Hospital affiliated with Anhui Medical University, Hefei 230001, China
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Bian H, Cao M, Wen H, Tan Z, Jia S, Cui J. Biodegradation of polyvinyl alcohol using cross-linked enzyme aggregates of degrading enzymes from Bacillus niacini. Int J Biol Macromol 2019; 124:10-16. [DOI: 10.1016/j.ijbiomac.2018.11.204] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 11/03/2018] [Accepted: 11/20/2018] [Indexed: 01/15/2023]
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Tan Z, Long X, Tian F, Huang L, Xie F, Li S. Alterations in Brain Metabolites in Patients with Epilepsy with Impaired Consciousness: A Case-Control Study of Interictal Multivoxel 1H-MRS Findings. AJNR Am J Neuroradiol 2019; 40:245-252. [PMID: 30679211 DOI: 10.3174/ajnr.a5944] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 12/01/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Previous studies have shown perfusion abnormalities in the thalamus and upper brain stem in patients with epilepsy with impaired consciousness. We hypothesized that these areas associated with consciousness will also show metabolic abnormalities. However, metabolic abnormalities in those areas correlated with consciousness has not been characterized with multiple-voxel 1H-MRS. In this study, we investigated the metabolic alterations in these brain regions and assessed the correlation between seizure features and metabolic alterations. MATERIALS AND METHODS Fifty-seven patients with epilepsy and 24 control subjects underwent routine MR imaging and 3D multiple-voxel 1H-MRS. Patients were divided into 3 subgroups: focal impaired awareness seizures (n = 18), primary generalized tonic-clonic seizures (n = 19), and secondary generalized tonic-clonic seizures (n = 20). The measured metabolite alterations in NAA/Cr, NAA/(Cr + Cho), and Cho/Cr ratios in brain regions associated with the consciousness network were compared between the patient and control groups. ROIs were placed in the bilateral inferior frontal gyrus, supramarginal gyrus, cingulate gyrus, precuneus, thalamus, and upper brain stem. Correlations between clinical parameters (epilepsy duration and seizure frequency) and metabolite alterations were analyzed. RESULTS Significantly lower NAA/Cr and NAA/(Cho + Cr) ratios (P < .05 and < .01, respectively) were observed in the bilateral thalamus and upper brain stem in all experimental groups, and significantly high Cho/Cr ratios (P < .05) were observed in the right thalamus in the focal impaired awareness seizures group. There were no significant differences in metabolite ratios among the 3 patient groups (P > .05). The secondary generalized tonic-clonic seizures group showed a negative correlation between the duration of epilepsy and the NAA/(Cr + Cho) ratio in the bilateral thalamus (P < .05). CONCLUSIONS Metabolic alterations were observed in the brain stem and thalamus in patients with epilepsy with impaired consciousness.
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Affiliation(s)
- Z Tan
- From the Departments of Neurology (Z.T., X.L., F.T., L.H., S.L.)
| | - X Long
- From the Departments of Neurology (Z.T., X.L., F.T., L.H., S.L.)
| | - F Tian
- From the Departments of Neurology (Z.T., X.L., F.T., L.H., S.L.)
| | - L Huang
- From the Departments of Neurology (Z.T., X.L., F.T., L.H., S.L.)
| | - F Xie
- Radiology (F.X.), Xiangya Hospital, Central South University, Changsha, China
| | - S Li
- From the Departments of Neurology (Z.T., X.L., F.T., L.H., S.L.)
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Feng Y, Zhong L, Bilal M, Tan Z, Hou Y, Jia S, Cui J. Enzymes@ZIF-8 Nanocomposites with Protection Nanocoating: Stability and Acid-Resistant Evaluation. Polymers (Basel) 2018; 11:E27. [PMID: 30960011 PMCID: PMC6401926 DOI: 10.3390/polym11010027] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 12/14/2018] [Accepted: 12/20/2018] [Indexed: 01/18/2023] Open
Abstract
Zeolitic imidazole framework-8 (ZIF-8) with tunable pore sizes and high surface areas have recently emerged as a promising support for immobilizing enzymes. However, the instability in the aqueous acidic environment and difficulty of recovery has limited their practical applications in some cases. In this study, catalase/ZIF-8 composites with a protective nanocoating were prepared by the controlled self-assembly of silanes or coordination complexes (tannic acid (TA) and Fe3+). The properties of the catalase (CAT)/ZIF-8 composites with a protective nanocoating were also determined. The recovered activity of CAT/ZIF-8 and CAT/ZIF-8 with protective nanocoating was 70% and 65%, respectively. Compared with the conventional CAT/ZIF-8 composites, CAT/ZIF-8 with protective nanocoating exhibited excellent acid resistance. For example, after treatment for 60 min in phosphate buffer solution (pH 3.0), CAT/ZIF-8 composites only maintained 20% of their initial activity (about 12 U/mg). However, CAT/ZIF-8 with a protective nanocoating could still retain about 50% of its initial activity (about 10 U/mg). Meanwhile, the thermostability and storage stability of the CAT/ZIF-8 composites was enhanced significantly due to the presence of nanocoating compared with conventional CAT/ZIF-8. More importantly, the CAT/ZIF-8 with a protective nanocoating retained 40% of its initial activity after 7 cycles, whereas CAT/ZIF-8 only retained 8% of the initial activity. The approach in this study could be an efficient strategy to prepare enzyme/ZIF-8 composites with both high acid resistance and excellent recyclability.
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Affiliation(s)
- Yuxiao Feng
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No 29, 13th, Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, China.
| | - Le Zhong
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No 29, 13th, Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, China.
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Zhilei Tan
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No 29, 13th, Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, China.
| | - Ying Hou
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No 29, 13th, Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, China.
| | - Shiru Jia
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No 29, 13th, Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, China.
| | - Jiandong Cui
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No 29, 13th, Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, China.
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Tan Z, Zhang W, Li G, Huang X, Wang K, Xu X, Wang LS, Sun B. A Successful Case of Liver Transplantation in an Adult With Congenital Hepatic Arteriovenous Fistulae Associated Cardiac Dilatation and Heart Failure. Transplant Proc 2018; 50:4004-4007. [PMID: 30577304 DOI: 10.1016/j.transproceed.2018.08.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 08/10/2018] [Accepted: 08/29/2018] [Indexed: 11/25/2022]
Abstract
Congenital hepatic arteriovenous fistulae (CHAVF) are direct communications between the hepatic artery and portal vein or hepatic vein. Clinical symptoms of CHAVF depend mainly on the location, duration, and blood flow volume of the fistulae, which are manifested by portal hypertension, hepatic fibrosis, cardiac enlargement, and eventually heart failure. Here we report a female patient aged 54 who was first admitted to our hospital due to recurrent chest tightness and palpitations in March 2014. Metoprolol tartrate and diltiazem hydrochloride were prescribed to control the symptom since nothing unusual was found in coronary angiography and abdominal ultrasound. Until April 2015, the patient's syndrome relapsed and abdominal computed tomography angiography and digital subtraction angiography revealed diffuse arteriovenous fistulae between the branches of hepatic artery and vein. Subsequently, 3 attempts at hepatic arterial embolization were performed; however, her abdominal pain aggravated and her heart discomfort could not be relieved eventually. Therefore, orthotopic liver transplantation as the salvage treatment was performed using a hepatic graft from a 19-year-old cardiac-death donor performed on January 1, 2017. Upon operation, the enlarged right hepatic artery whose diameter was approximately 1.5 cm in this recipient. And we also demonstrated a novel manner that the graft's celiac artery patch was anastomosed to the recipient's proper hepatic artery and gastroduodenal artery patch, which could reduce the blood flow successfully. The patient recovered uneventfully and was discharged home on the postoperatively 15th day. Since her liver transplantation, she has not complained of cardiac discomfort and abdominal pain, and her heart size has returned to normal on echocardiography. The hepatic artery peak velocity reduced to normal and the heart shadow also recovered. Nevertheless, for complex and diffuse intrahepatic vascular fistulae after failed hepatic artery embolization, liver transplantation should be strongly considered as the definitive treatment of choice.
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Affiliation(s)
- Z Tan
- Department of Hepatobiliary Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China; Liver Transplantation Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - W Zhang
- Department of Hepatobiliary Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China; Liver Transplantation Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - G Li
- Department of Hepatobiliary Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China; Liver Transplantation Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - X Huang
- Department of Hepatobiliary Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - K Wang
- Liver Transplantation Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - X Xu
- Department of Hepatobiliary Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - L S Wang
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China.
| | - B Sun
- Department of Hepatobiliary Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China; Liver Transplantation Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China.
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Qiao LS, Xu XM, Yang H, Fang BM, Tan Z, Jin J. [Clinical characteristics and outcomes of patients with lung cancer, gastrointestinal cancer and urologic cancer with venous thromboembolism]. Zhonghua Yi Xue Za Zhi 2018; 98:1403-1407. [PMID: 29804402 DOI: 10.3760/cma.j.issn.0376-2491.2018.18.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the clinical characteristics and outcomes of patients with lung cancer, gastrointestinal (GI) cancer and urologic cancer with venous thromboembolism (VTE). Methods: From January 2003 to January 2013, 192 lung cancer, GI cancer and urologic cancer patients with VTE were retrospectively evaluated for the clinical characteristics and outcomes. Results: Among 192 patients, 82 cases of lung cancer, 78 cases of GI cancer, 32 cases of urologic cancer were involved. The Eastern Cooperative oncology Group Performance Status score of GI cancer group was significantly higher than those of the lung cancer and urologic cancer groups[(2.4±1.1) vs (2.0±1.4), (1.8±1.0), both P<0.05]. The proportion of smoking patients in lung cancer group was significantly higher than that in GI cancer and urologic cancer groups (79.3% vs 30.8%, 53.1%, both P<0.05), while the proportion of operation was significantly lower than that in the latter two groups (35.4% vs 53.8%, 68.8%, both P<0.05). Pathological types of cancer were mostly adenocarcinoma, and the proportion of adenocarcinoma in lung cancer and GI cancer groups was significantly higher than that in urologic cancer group (76.9%, 73.8% vs 37.9%, both P<0.001). The proportion of moderately and/or poorly differentiated histodifferentiation in the first two groups was significantly higher than that of urologic cancer group (90.0%, 95.7% vs 40.0%, both P<0.001). The proportion of patients with TNM stage Ⅲ-Ⅳ in lung cancer group was significantly higher than that of the urological cancer group (87.0% vs 64.3%, P<0.05). The incidence of VTE in lung cancer group was significantly higher than those of GI cancer and urologic cancer groups within 6 months after tumor diagnosis, chemotherapy and operation (79.3% vs 60.3%, 46.9%; 76.5% vs 48.6%, 36.4%; 92.3% vs 57.9%, 59.1%; all P<0.05). The case fatality rate within one year in lung cancer and GI cancer groups was significantly higher than that in urologic cancer group (51.2%, 52.6% vs 18.8%, both P<0.01). The median survival time of the lung cancer and GI cancer groups was significantly shorter than that of the urological cancer group (P=0.001, 0.010, respectively). Conclusions: Adenocarcinoma, advanced cancer, and poor histodifferentiation are risk factors of VTE in cancer patients. Most events of VTE occur within 6 months after a diagnosis of cancer. The prognosis of lung cancer and GI cancer complicated with VTE is worse than that of urologic cancer with VTE.
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Affiliation(s)
- L S Qiao
- Division of Respiratory and Critical Care Medicine, Beijing Hospital, National Center of Gerontology, National Center of Respiratory Disease, Beijing 100730, China
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Ma L, Yang Y, Zhao X, Wang F, Gao S, Tan Z, Baumgard L, Bu D. PSXI-20 Heat stress induces proteomic changes in the liver and mammary tissue of dairy cows independent of feed intake: an iTRAQ study. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- L Ma
- Institute of Animal Science, Chinese Academy of Agricultural Sciences,Beijing, China (People’s Republic)
| | - Y Yang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences;Institute of Animal Science and Veterinary Medicine, Anhui Academy of Agricultural Sciences,Hefei, China
| | - X Zhao
- Institute of Animal Science, Chinese Academy of Agricultural Sciences;Institute of Animal Science and Veterinary Medicine, Anhui Academy of Agricultural Sciences,Hefei, China
| | - F Wang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences,Beijing, China (People’s Republic)
| | - S Gao
- Institute of Animal Science, Chinese Academy of Agricultural Sciences,Beijing, China (People’s Republic)
| | - Z Tan
- Institute of Subtropical Agriculture, The Chinese Academy of Sciences],Changsha, China (People’s Republic)
| | - L Baumgard
- Department of Animal Science, Iowa State University,Ames, IA, United States
| | - D Bu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences,Beijing, China (People’s Republic)
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Tan Z, Yu H, Chekabab S, Yin X, Diarra M, Gong J, Yang C. 341 Effects of different iron sources and chelators on growth in wild type and iron-uptake defective mutants of non-typhoidal Salmonella enterica serovars. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Z Tan
- Department of Animal Science, University of Manitoba,Winnipeg, Manitoba, Canada R3T 2N2/Guelph Research and Development Centre, Agriculture Agri-Food Canada,Guelph, Ontario, Canada N1G 5C9, Winnipeg, MB, Canada
| | - H Yu
- Guelph Research and Development Centre, Agriculture Agri-Food Canada,Guelph, ON, Canada
| | - S Chekabab
- Guelph Research and Development Centre, Agriculture Agri-Food Canada,Guelph, ON, Canada
| | - X Yin
- Guelph Research and Development Centre, Agriculture Agri-Food Canada,Guelph, ON, Canada
| | - M Diarra
- Guelph Research and Development Centre, Agriculture Agri-Food Canada,Guelph, ON, Canada
| | - J Gong
- Guelph Research and Development Centre, Agriculture Agri-Food Canada,Guelph, ON, Canada
| | - C Yang
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
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Ng D, Tan R, Sultana R, Ang M, Lim W, Chong D, Cwl C, Koo SL, Seet S, Tan Z, Tan I. Prevalence of vitamin D deficiency in Chinese patients with early stage colorectal cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy431.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tan Z, Shen B, Ren Y, Zheng X. The Temporal Effect of Low-Dose Irradiation on the Expression of SIRPa in Tumor-Associated Macrophages. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tan Z, Bo T, Guo F, Cui J, Jia S. Effects of ε-Poly-l-lysine on the cell wall of Saccharomyces cerevisiae and its involved antimicrobial mechanism. Int J Biol Macromol 2018; 118:2230-2236. [DOI: 10.1016/j.ijbiomac.2018.07.094] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 07/12/2018] [Accepted: 07/14/2018] [Indexed: 01/08/2023]
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