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Arntzen T, Mikkelsen A, Emblem R, Lai X, Haugen G. Prenatal Diagnosis of Esophageal Atresia - Performance and Consequences. J Pediatr Surg 2023; 58:2075-2080. [PMID: 37407414 DOI: 10.1016/j.jpedsurg.2023.05.015] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/25/2023] [Accepted: 05/14/2023] [Indexed: 07/07/2023]
Abstract
BACKGROUND Prenatal diagnosis of congenital malformations is considered favorable. Esophageal atresia (EA) is prenatally detected in 10-40% of patients. The aims of our study were to assess factors influencing the prenatal detection rate and to study the outcome in EA patients with and without prenatal diagnosis. METHOD We included 136 patients in two time periods, group 1 (1996-2002, n = 68) and group 2 (2014-2020, n = 68). We registered clinical variables; prenatal signs, perinatal and postnatal outcome from the electronic patient record. RESULTS Twenty-five patients (18%) had a prenatal diagnosis of EA, significantly more during 2014-2020 (28%), than during 1996-2002 (9%). Patients with EA type A or B and with associated anomalies had increased likelihood of prenatal diagnosis, odds ratio (OR) 9.00 (1.99-40.69) and 3.53 (1.24-10.06), respectively. Among the 25 patients with prenatal diagnosis all had polyhydramnios and 16 had small/absent stomach. Prenatally diagnosed patients arrived significantly earlier at the surgical unit (median 2 h (2 h-1 days) vs 21 h (2 h-1275 days)), had more delayed primary anastomosis (OR 8.80 (2.68-28.92)) and anastomotic stricture (OR 3.11 (1.20-8.04)), longer length of stay (median 62 days (11-212 days) vs 20 days (2-270 days)) and longer time on ventilator (median 5 days (1-25 days) vs 1.5 days (0.5-33 days)) compared to patients without prenatal diagnosis. In multivariate analysis prenatal diagnosis predicts length of stay. CONCLUSION Prenatally diagnosed EA patients have more; type A and B malformations, associated anomalies and neonatal morbidity. Consequences of the assumed benefits of prenatal diagnosis; opportunity of early arrival to surgical care and prenatal counselling, must be further studied.
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Affiliation(s)
- T Arntzen
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Section for Pediatric Surgery, Oslo University Hospital, Oslo, Norway.
| | - A Mikkelsen
- Section for Pediatric Surgery, Oslo University Hospital, Oslo, Norway
| | - R Emblem
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Section for Pediatric Surgery, Oslo University Hospital, Oslo, Norway
| | - X Lai
- Oslo Centre for Biostatistics and Epidemiology, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - G Haugen
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Fetal Medicine, Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway
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Bai S, Song D, Chen M, Lai X, Xu J, Dong F. The association between mammographic density and breast cancer molecular subtypes: a systematic review and meta-analysis. Clin Radiol 2023; 78:622-632. [PMID: 37230842 DOI: 10.1016/j.crad.2023.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/12/2023] [Accepted: 04/21/2023] [Indexed: 05/27/2023]
Abstract
AIM To conduct a systematic review and meta-analysis to evaluate the whether high mammographic density (MD) is differentially associated with all subtypes of breast cancer. MATERIALS AND METHODS The PubMed, Cochrane Library, and Embase databases were searched systematically in October 2022 to include all studies that investigated the association between MD and breast cancer subtype. Aggregate data of 17,193 breast cancer cases from 23 studies were selected, including five cohort/case-control and 18 case-only studies. The relative risk (RR) of MD were combined using random/fixed effects models for case-control studies, and for case-only studies, relative risk ratios (RRRs) were a combination of luminal A, luminal B, and HER2-positive versus triple-negative tumours. RESULTS Women in the highest density category in case-control/cohort studies had a 2.24-fold (95% confidence interval [CI] 1.53, 3.28), 1.81-fold (95% CI 1.15, 2.85), 1.44-fold (95% CI 1.14, 1.81), and 1.59-fold (95% CI 0.89, 2.85) higher risk of triple-negative, HER-2 (human epidermal growth factor receptor 2) positive, luminal A, and luminal B breast cancer compared to women in the lowest density category. RRRs for breast tumours being luminal A, luminal B, and HER-2 positive versus triple-negative in case-only studies were 1.62 (95% CI 1.14, 2.31), 1.81 (95% CI 1.22, 2.71) and 2.58 (95% CI 1.63, 4.08), respectively, for BIRADS 4 versus BIRADS 1. CONCLUSION The evidence indicates MD is a potent risk factor for the majority of breast cancer subtypes to different degrees. Increased MD is more strongly linked to HER-2-positive cancers compared to other breast cancer subtypes. The application of MD as a subtype-specific risk marker may facilitate the creation of personalised risk prediction models and screening procedures.
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Affiliation(s)
- S Bai
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - D Song
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - M Chen
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - X Lai
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - J Xu
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
| | - F Dong
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
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Yu L, Li S, Tan X, Wang C, Lai X, Liu Y, Zhang Y. Optimization of Processing of Tiebangchui with Highland Barley Wine Based on the Box-Behnken Design Combined with the Entropy Method. J Vis Exp 2023. [PMID: 37318262 DOI: 10.3791/65154] [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: 06/16/2023] Open
Abstract
The processing of toxic ethnomedicines is of great significance for their safe clinical application. Thus, the limitations of traditional processing should be addressed, and the processing method of ethnomedicines should be standardized using modern research methods. In this study, the processing technology of a commonly used Tibetan medicine Tiebangchui (TBC), the dried root of Aconitum pendulum Busch, processed with highland barley wine was optimized. Diester-diterpenoid alkaloid (DDA) (aconitine, 3-deoxyaconitine, 3-acetylaconitine) and monoester-diterpenoid alkaloid (MDA) (benzoylaconine) content were used as evaluation indicators, and the weight coefficient of each evaluation index was determined by the entropy method. The single factor test and Box-Behnken design were used in investigating the influence of the ratio between highland barley wine and TBC, slice thickness of TBC, and processing time. Comprehensive scoring was performed according to the objective weight of each index determined by the entropy method. The optimal processing conditions of TBC with highland barley wine were as follows: the amount of highland barley wine is five times that of TBC, a soaking time of 24 h, and a TBC thickness of 1.5 cm. The results showed that the relative standard deviation between the verification test and predicted value was less than 2.55% and the optimized processing technology of TBC processed with highland barley wine is simple, feasible, and stable, and so can provide a reference for industrial production.
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Affiliation(s)
- Liqiong Yu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine
| | - Shiling Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine
| | - Xiaoyan Tan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine
| | - Chengping Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine
| | - Xianrong Lai
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine; State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine;
| | - Yue Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine;
| | - Yi Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine;
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Li S, Yu L, Li C, Wang N, Lai X, Liu Y, Zhang Y. Optimization of Processing Technology for Tiebangchui with Zanba Based on CRITIC Combined with Box-Behnken Response Surface Method. J Vis Exp 2023. [PMID: 37246864 DOI: 10.3791/65139] [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: 05/30/2023] Open
Abstract
The dried root of Aconitum pendulum Busch., called Tiebangchui (TBC) in Chinese, is one of the most famous Tibetan medicines. It is a widely used herb in northwest China. However, many cases of poisoning have occurred because of TBC's intense toxicity and because its therapeutic and toxic doses are similar. Therefore, finding a safe and effective method to reduce its toxicity is an urgent task. A search through the Tibetan medicine classics shows that the processing method of TBC stir-fried with Zanba was recorded in the "Processing specification of Tibetan medicine of Qinghai Province (2010)". However, the specific processing parameters are not yet clear. Thus, this study aims to optimize and standardize the processing technology of Zanba-stir-fried TBC. First, a single-factor experiment was conducted on four factors: the slice thickness of TBC, amount of Zanba, processing temperature, and time. With monoester and diester alkaloid contents in Zanba-stir-fried TBC as indexes, CRITIC combined with the Box-Behnken response surface method was used to optimize the processing technology of Zanba-stir-fried TBC. The optimized processing conditions of Zanba-stir-fried TBC were a TBC slice thickness of 2 cm, three times more Zanba than TBC, a processing temperature of 125 °C, and 60 min of stir-frying. This study determined the optimized and standard processing conditions for the usage of Zanba-stir-fried TBC, thus providing an experimental basis for the safe clinical use and industrial production of Zanba-stir-fried TBC.
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Affiliation(s)
- Shiling Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine
| | - Liqiong Yu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine
| | - Congying Li
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine
| | - Naiyu Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine
| | - Xianrong Lai
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine;
| | - Yue Liu
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine;
| | - Yi Zhang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine;
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Brendefur Corwin LM, Campbell P, Jakobsen K, Müller F, Lai X, Unemo M, Leegaard TM, Vildershøj Bjørnholt J, Olsen AO. Improvement in Neisseria gonorrhoeae culture rates by bedside inoculation and incubation at a clinic for sexually transmitted infections. Ann Clin Microbiol Antimicrob 2023; 22:27. [PMID: 37072830 PMCID: PMC10114361 DOI: 10.1186/s12941-023-00576-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 03/28/2023] [Indexed: 04/20/2023] Open
Abstract
BACKGROUND Culture of Neisseria gonorrhoeae is essential for surveillance of complete antimicrobial susceptibility profiles. In 2014, the culture success rate of N. gonorrhoeae from samples taken at the clinic for sexually transmitted infections (STI clinic), Oslo University Hospital, Norway, was only 20%. The present study aimed to improve gonococcal culture rates using bedside inoculation of patient samples on gonococcal agar plates and incubation at the STI clinic. METHODS This prospective quality improvement study was conducted by the STI clinic and the Department of Microbiology at Oslo University Hospital from May 2016 - October 2017. When culture of N. gonorrhoeae was clinically indicated, we introduced a parallel 'bedside culture' at the STI clinic and compared results with the standard culture at the microbiology department. Samples were taken from urethra, anorectum, pharynx and cervix. Culture rates were compared across symptomatic and asymptomatic anatomical sites. RESULTS From 596 gonococcal-positive PCR samples, bedside culture had a significantly higher success rate of 57% compared to 41% with standard culture (p < 0.05). Overall, culture rate from symptomatic sites was 91% v. 45% from asymptomatic sites. The culture rates from different anatomical sites were as follows: urethra 93%, anorectum 64%, pharynx 28% and cervix 70%. Bedside culture significantly (p < 0.05) improved the culture rates for symptomatic urethral and asymptomatic pharyngeal samples. CONCLUSIONS Where feasible, bedside inoculation on gonococcal agar plates and incubation of samples from patients with gonorrhoea is recommended. This will improve the culture diagnostics and provide additional gonococcal isolates for antimicrobial resistance surveillance.
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Affiliation(s)
- L M Brendefur Corwin
- Department of Microbiology, Oslo University Hospital, Oslo, Norway.
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - P Campbell
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Microbiology and Infection Control, Akershus University Hospital, Lørenskog, Norway
- National Advisory Unit for Sexually Transmitted Infections, Oslo University Hospital, Oslo, Norway
| | - K Jakobsen
- Department of Microbiology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - F Müller
- Department of Microbiology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - X Lai
- Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - M Unemo
- WHO Collaborating Centre for Gonorrhoea and other STIs, National Reference Laboratory for STIs, Department of Laboratory Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
- Institute for Global Health, University College London (UCL), London, UK
| | - T M Leegaard
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Microbiology and Infection Control, Akershus University Hospital, Lørenskog, Norway
| | - J Vildershøj Bjørnholt
- Department of Microbiology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - A O Olsen
- Section for Respiratory, Blood-borne and Sexually Transmitted Infections, Department of Infection Control and Vaccines, Norwegian Institute of Public Health, Oslo, Norway
- Department of Community Medicine and Global Health, Institute of Health and Society, University of Oslo, Oslo, Norway
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Feng M, Du X, Yin Y, Yan L, Wang H, Yin Q, Li L, Fan M, Lai X, Huang Y, Ren J, Lang J. Early Prediction Model of Radiation-Induced Xerostomia Based on Radiomics during Radiotherapy for Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.420] [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: 10/31/2022]
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Yu L, Li S, Pu L, Yang C, Shi Q, Zhao Q, Meniga S, Liu Y, Zhang Y, Lai X. Traditional Tibetan medicine: therapeutic potential in rheumatoid arthritis. Front Pharmacol 2022; 13:938915. [PMID: 36267280 PMCID: PMC9576941 DOI: 10.3389/fphar.2022.938915] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 08/15/2022] [Indexed: 11/13/2022] Open
Abstract
Rheumatoid arthritis (RA) is a severe inflammatory autoimmune disease characterized by the failed spontaneous resolution of inflammation. The induction of immune regulation and resolution of inflammatory pathways are effective in alleviating inflammation in RA. As the oldest medical system in the world, traditional Tibetan medicine (TTM) has a long history of preventing and treating RA. This review provides a comprehensive overview of medicinal plants with anti-RA activity in the TTM system, using classic books of Tibetan medicine, modern research literature, and drug standards. A total of 27 species have been found to be effective in treating RA, including Tinospora sinensis (Lour.) Merr., Terminalia chehula Retz., P. hookeri (C. B. Clarke) Hock.), and Aconitum pendulum Busch. Alkaloids, flavonoids, polyphenols, and terpenoids have turned out to be the major bioactive components for RA treatment. The inhibition of pro-inflammatory cytokine expression by mediating the NF-κB, MAPK, and JAK/STAT pathways is the core mechanism in RA treatment. In conclusion, this review provides key information and research perspectives for further research on the anti-RA effects of TTM.
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Affiliation(s)
- Liqiong Yu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shiling Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lili Pu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chunhong Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qian Shi
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qi Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shengbu Meniga
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yue Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Yue Liu, ; Yi Zhang, ; Xianrong Lai,
| | - Yi Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Yue Liu, ; Yi Zhang, ; Xianrong Lai,
| | - Xianrong Lai
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Yue Liu, ; Yi Zhang, ; Xianrong Lai,
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Lai X, Yang X, Rao S, Zhu Z, Cong X, Ye J, Zhang W, Liao Y, Cheng S, Xu F. Advances in physiological mechanisms of selenium to improve heavy metal stress tolerance in plants. Plant Biol (Stuttg) 2022; 24:913-919. [PMID: 35583793 DOI: 10.1111/plb.13435] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Selenium (Se) is a metalloid mineral nutrient for human and animal health. Plants are the main foodstuff source of the Se intake of humans. For plants, the addition of an appropriate amount of Se could promotes growth and development, and improves the tolerance to environmental stress, especially stress from some of heavy metals (HM) stress, such as cadmium (Cd) and mercury (Hg). This paper mainly reviews and summarizes the physiological mechanism of Se in enhancing HM stress tolerance in plants. The antagonistic effect of Se on HM is a comprehensive effect that includes many physiological mechanisms. Se can promote the removal of excessive reactive oxygen species and reduce the oxidative damage of plant cells under HM elements stress. Se participates in the regulation of the transportation and distribution of HM ions in plants, and alleviates the damage caused by of HM stress. Moreover, Se combine with HM elements to form Se-HM complexes and promote the production of phytochelatins (PCs), thereby reducing the accumulation of HM ions in plants. Overall, Se plays an important role in plant response to HM stress, but current studies mainly focus on physiological mechanism, and further in-depth study on the molecular mechanism is essential to confirm the participation of Se in plant response to environmental stress. This review helps to comprehensively understand the physiological mechanism of Se in plant tolerance against to HM stress of plants, and provides important theoretical support for the practical application of Se in environmental remediation and agricultural development.
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Affiliation(s)
- X Lai
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - X Yang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - S Rao
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
- School of Modern Industry for Selenium Science and Engineering, National R&D Center for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, China
| | - Z Zhu
- School of Modern Industry for Selenium Science and Engineering, National R&D Center for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, China
| | - X Cong
- School of Modern Industry for Selenium Science and Engineering, National R&D Center for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, China
- Enshi Se-Run Health Tech Development Co., Ltd, Enshi, China
| | - J Ye
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - W Zhang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - Y Liao
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - S Cheng
- School of Modern Industry for Selenium Science and Engineering, National R&D Center for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, China
| | - F Xu
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
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Tang X, Feng H, Gao J, Bi R, Pan L, Shi Y, Han Y, Lai X. Effect of berbamine hydrochloride on the absorption of berberine hydrochloride in an in situ single-pass intestinal perfusion system in rats. TROP J PHARM RES 2022. [DOI: 10.4314/tjpr.v21i4.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Purpose: To investigate the intestinal absorption characteristics of berberine hydrochloride (BBH) under different perfusion conditions in rats.Methods: Based on the in situ single-pass intestinal perfusion model of rats, HPLC was used to determine the content of berberine hydrochloride in solution after perfusion under different conditions. The absorption rate constant (Ka), effective permeability coefficient (Papp) and cumulative absorption per unit area (Q) under different perfusion conditions were analyzed by one-way ANOVA.Results: The Papp and Ka of BBH in perfusion solution at pH 7.4 were greater than those in perfusion solution at pH 6 and 8. There was no significant difference (p > 0.05) in Papp and Ka of duodenum, jejunum and ileum at high, medium and low concentrations of berberine hydrochloride perfusion solution. The Q increased linearly with increase of mass concentration of perfusion solution. The Ka and Papp of BBH in duodenum, jejunum, and ileum of BBH and berbamine hydrochloride (BAH) combined at different ratios were higher than those of BBH control group at the same BBH concentration, but absorption of BBH in the ratio B40:A50 and B30:A20 groups was highest. In the ratio of B40:A50 ratio, B30:A20 ratio group or the same concentration's BBH group, Ka and Papp of BBH decreased in the order of jejunum > duodenum > ileum.Conclusion: Berberine hydrochloride is absorbed in neutral environment of pH 7.4. The intestinal absorption mechanism of BBH is passive diffusion, and jejunum is the best intestinal segment for absorption. BAH promotes the absorption of BBH.
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Xia K, Wang F, Lai X, Luo P, Chen H, Ma Y, Huang W, Ou W, Li Y, Feng X, Lei Z, Tu X, Ke Q, Mao F, Deng C, Xiang A. Gene Editing/Gene Therapies: AAV-MEDIATED GENE THERAPY PRODUCES FERTILE OFFSPRING IN THE LHCGR-DEFICIENT MOUSE MODEL OF LEYDIG CELL FAILURE. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00156-6] [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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Wang L, Li R, Lai X, Zhang X, Chen H, Zhao W. [Mapping Regulatory Elements within 5' and 3' UTRs of SIGLEC15 with a Use of Reporter System]. Mol Biol (Mosk) 2022; 56:465-467. [PMID: 35621101 DOI: 10.31857/s0026898422030181] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/31/2021] [Indexed: 06/15/2023]
Abstract
Siglec-15 is an immune suppressor with broad upregulation on various cancer types and has emerged as a potential target for cancer immunotherapy. However, it remains unclear how SIGLEC15 expression is controlled in normal or cancer cells. In this work, we utilized reporter assays to evaluate the impact of the 5' UTR and the 3' UTR of SIGLEC15 mRNA on gene expression. We found that the 3' UTR dramatically reduced reporter protein production, whereas the 5' UTR showed modest inhibitory effect. Quantification of steady-state mRNA revealed the good coupling of protein amount and mRNA abundance that was associated with the 3' UTR. In contrast, the 5' UTR had little effect on mRNA abundance compared with the empty control. By measuring mRNA half-life, we showed that the 3' UTR markedly promoted mRNA degradation. Testing shortened 3' UTR fragments demonstrated five out of the six having notable inhibitory effect, with the one spanning 993-1317 had the most robust activity. More interestingly, the 993-1317 region contains a predicted 43-nt stem-loop structure that showed apparent inhibitory activity in four cell lines tested. These results suggested that the 3' UTR inhibited reporter gene expression by accelerating mRNA decay possibly via multiple cis-regulatory elements, but the 5' UTR repressed gene expression by inhibiting translation. Thus, our findings provided a clue to the molecular mechanism underlying the regulation of SIGLEC15 expression.
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Affiliation(s)
- L Wang
- Molecular Cancer Research Center, School of Medicine, Shenzhen Campus of Sun Yat-sen University,Shenzhen, Guangdong, 518107 P.R. China
| | - R Li
- Molecular Cancer Research Center, School of Medicine, Shenzhen Campus of Sun Yat-sen University,Shenzhen, Guangdong, 518107 P.R. China
| | - X Lai
- Molecular Cancer Research Center, School of Medicine, Shenzhen Campus of Sun Yat-sen University,Shenzhen, Guangdong, 518107 P.R. China
| | - X Zhang
- Molecular Cancer Research Center, School of Medicine, Shenzhen Campus of Sun Yat-sen University,Shenzhen, Guangdong, 518107 P.R. China
| | - H Chen
- Molecular Cancer Research Center, School of Medicine, Shenzhen Campus of Sun Yat-sen University,Shenzhen, Guangdong, 518107 P.R. China
| | - W Zhao
- Molecular Cancer Research Center, School of Medicine, Shenzhen Campus of Sun Yat-sen University,Shenzhen, Guangdong, 518107 P.R. China
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Ai X, Yu P, Peng L, Luo L, Liu J, Li S, Lai X, Luan F, Meng X. Berberine: A Review of its Pharmacokinetics Properties and Therapeutic Potentials in Diverse Vascular Diseases. Front Pharmacol 2022; 12:762654. [PMID: 35370628 PMCID: PMC8964367 DOI: 10.3389/fphar.2021.762654] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 10/20/2021] [Indexed: 12/11/2022] Open
Abstract
Traditional Chinese medicine plays a significant role in the treatment of various diseases and has attracted increasing attention for clinical applications. Vascular diseases affecting vasculature in the heart, cerebrovascular disease, atherosclerosis, and diabetic complications have compromised quality of life for affected individuals and increase the burden on health care services. Berberine, a naturally occurring isoquinoline alkaloid form Rhizoma coptidis, is widely used in China as a folk medicine for its antibacterial and anti-inflammatory properties. Promisingly, an increasing number of studies have identified several cellular and molecular targets for berberine, indicating its potential as an alternative therapeutic strategy for vascular diseases, as well as providing novel evidence that supports the therapeutic potential of berberine to combat vascular diseases. The purpose of this review is to comprehensively and systematically describe the evidence for berberine as a therapeutic agent in vascular diseases, including its pharmacological effects, molecular mechanisms, and pharmacokinetics. According to data published so far, berberine shows remarkable anti-inflammatory, antioxidant, antiapoptotic, and antiautophagic activity via the regulation of multiple signaling pathways, including AMP-activated protein kinase (AMPK), nuclear factor κB (NF-κB), mitogen-activated protein kinase silent information regulator 1 (SIRT-1), hypoxia-inducible factor 1α (HIF-1α), vascular endothelial growth factor phosphoinositide 3-kinase (PI3K), protein kinase B (Akt), janus kinase 2 (JAK-2), Ca2+ channels, and endoplasmic reticulum stress. Moreover, we discuss the existing limitations of berberine in the treatment of vascular diseases, and give corresponding measures. In addition, we propose some research perspectives and challenges, and provide a solid evidence base from which further studies can excavate novel effective drugs from Chinese medicine monomers.
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Affiliation(s)
- Xiaopeng Ai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Peiling Yu
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Lixia Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Liuling Luo
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jia Liu
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shengqian Li
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Xianrong Lai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fei Luan
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xianli Meng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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13
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Gao J, Shi Y, Han Y, Tang X, Bi R, Pan L, Lai X. One-Way Intestinal Perfusion of PVP/VA-Poloxamer 188-Curcuma longa L. Extract Solid Dispersion in Rats In Vivo and Its Effect on HSC-T6 Cell Proliferation. AAPS PharmSciTech 2022; 23:83. [PMID: 35288813 DOI: 10.1208/s12249-022-02228-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/30/2022] [Indexed: 11/30/2022] Open
Abstract
Turmeric was the dried rhizome of Curcuma longa L., and its extract had important pharmacological effects such as anti-tumor, cholagogic, and antioxidant. However, curcuma extract had poor water solubility and low bioavailability, which had become the main limiting factor for its clinical application. The purpose of this study was to prepare PVP/VA-Poloxamer-188-curcuma extract solid dispersion (PAP-CSD) to improve the solubility and bioavailability of the curcuma extract. The intestinal absorption mechanism of solid dispersion of this extract was studied by one-way intestinal perfusion in rats. PAP-CSD,PVP/VA-curcuma extract solid dispersion (PA-CSD) and Poloxamer-188-curcuma extract solid dispersion (P-CSD) was able to improve the intestinal absorption of the curcuma extract (P < 0.05), and PAP-CSD (combined use of two carriers) was better than that of PA-CSD and P-CSD. CCK8 method was used to investigate the effects of the curcuma extract and PAP-CSD on the proliferation of hepatic stellate cells (HSC)-T6 cells. The inhibitory effect of PAP-CSD on the proliferation of HSC-T6 cells, related to the p38 MAPK pathway, was better than that of the curcuma extract.
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14
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Wang L, Li R, Lai X, Zhang X, Chen H, Zhao W. Mapping Regulatory Elements within 5' and 3' UTRs of SIGLEC15 with a Use of Reporter System. Mol Biol 2022. [DOI: 10.1134/s0026893322030141] [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: 11/23/2022]
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15
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Pu L, Yang C, Yu L, Li S, Liu Y, Liu X, Lai X. Tibetan Medicines for the Treatment of Diabetic Nephropathy. Evid Based Complement Alternat Med 2021; 2021:7845848. [PMID: 34659438 PMCID: PMC8514928 DOI: 10.1155/2021/7845848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 11/26/2022]
Abstract
As an important part of the traditional Chinese medicine system, Tibetan medicine has its unique treatment methods for diabetes mellitus and its complications. Diabetic nephropathy (DN) is one of the most serious diabetic microvascular diseases. Tibetan medicine believes that the occurrence of DN is closely related to renal function changes, and it can be effectively prevented and treated by improving renal lesions. In this paper, we consult ancient books of Tibetan medicine and summarize the medicines that treat kidney disease in the Tibetan medicine system. The Chinese name, English name, and Latin name of these drugs were searched as keywords in the online database. Thirty-four drugs were found for the treatment of DN. The most commonly used were Amomum kravanh, Terminalia chebula, and Tribulus terrestris, and we introduced the traditional uses and modern pharmacological activities of these drugs. The results indicate that Tibetan medicines for kidney disease could be used as potential candidate drugs for DN; they would expand the range of medications for DN and provide a new idea for the treatment of DN.
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Affiliation(s)
- Lili Pu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Chunhong Yang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Liqiong Yu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Shiling Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yaqin Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xinan Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xianrong Lai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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16
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Xie N, Hou Y, Wang S, Ai X, Bai J, Lai X, Zhang Y, Meng X, Wang X. Second near-infrared (NIR-II) imaging: a novel diagnostic technique for brain diseases. Rev Neurosci 2021; 33:467-490. [PMID: 34551223 DOI: 10.1515/revneuro-2021-0088] [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: 06/29/2021] [Accepted: 09/02/2021] [Indexed: 12/20/2022]
Abstract
Imaging in the second near-infrared II (NIR-II) window, a kind of biomedical imaging technology with characteristics of high sensitivity, high resolution, and real-time imaging, is commonly used in the diagnosis of brain diseases. Compared with the conventional visible light (400-750 nm) and NIR-I (750-900 nm) imaging, the NIR-II has a longer wavelength of 1000-1700 nm. Notably, the superiorities of NIR-II can minimize the light scattering and autofluorescence of biological tissue with the depth of brain tissue penetration up to 7.4 mm. Herein, we summarized the main principles of NIR-II in animal models of traumatic brain injury, cerebrovascular visualization, brain tumor, inflammation, and stroke. Simultaneously, we encapsulated the in vivo process of NIR-II probes and their in vivo and in vitro toxic effects. We further dissected its limitations and following optimization measures.
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Affiliation(s)
- Na Xie
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu611137, China
| | - Ya Hou
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu611137, China
| | - Shaohui Wang
- Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu611137, China
| | - Xiaopeng Ai
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu611137, China
| | - Jinrong Bai
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu611137, China
| | - Xianrong Lai
- Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu611137, China
| | - Yi Zhang
- Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu611137, China
| | - Xianli Meng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu611137, China
| | - Xiaobo Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu611137, China
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17
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Feng M, Yan L, Du X, Wang H, Ren J, Wang M, Yin Q, Lai X, Li L, Lan M, Lu S, Huang Y, Li F, Xu X, Wang W, Lang J. 873P Early efficacy prediction of nasopharyngeal carcinoma based on 3D-ADC acquired during radiotherapy: A phase II prospective study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1283] [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] Open
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18
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Li R, Ai X, Hou Y, Lai X, Meng X, Wang X. Amelioration of diabetic retinopathy in db/db mice by treatment with different proportional three active ingredients from Tibetan medicine Berberis dictyophylla F. J Ethnopharmacol 2021; 276:114190. [PMID: 33964362 DOI: 10.1016/j.jep.2021.114190] [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] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/09/2021] [Accepted: 05/02/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Berberis dictyophylla F., a famous Tibetan medicine, has been used to prevent and treat diabetic retinopathy (DR) for thousands of years in clinic. However, its underlying mechanisms remain unclear. AIM OF THE STUDY The present study was designed to probe the synergistic protection and involved mechanisms of berberine, magnoflorine and berbamine from Berberis dictyophylla F. on the spontaneous retinal damage of db/db mice. MATERIALS AND METHODS The 14-week spontaneous model of DR in db/db mice were randomly divided into eight groups: model group, calcium dobesilate (CaDob, 0.23 g/kg) group and groups 1-6 (different proportional three active ingredients from Berberis dictyophylla F.). All mice were intragastrically administrated for a continuous 12 weeks. Body weight and fasting blood glucose (FBG) were recorded and measured. Hematoxylin-eosin and periodic acid-Schiff (PAS) stainings were employed to evaluate the pathological changes and abnormal angiogenesis of the retina. ELISA was performed to assess the levels of IL-6, HIF-1α and VEGF in the serum. Immunofluorescent staining was applied to detect the protein levels of CD31, VEGF, p-p38, p-JNK, p-ERK and NF-κB in retina. In addition, mRNA expression levels of VEGF, Bax and Bcl-2 in the retina were monitored by qRT-PCR analysis. RESULTS Treatment with different proportional three active ingredients exerted no significant effect on the weight, but decreased the FBG, increased the number of retinal ganglionic cells and restored internal limiting membrane. The results of PAS staining demonstrated that the drug treatment decreased the ratio of endothelial cells to pericytes while thinned the basal membrane of retinal vessels. Moreover, these different proportional active ingredients can markedly downregulate the protein levels of retinal CD31 and VEGF, and serum HIF-1α and VEGF. The gene expression of retinal VEGF was also suppressed. The levels of retinal p-p38, p-JNK and p-ERK proteins were decreased by drug treatment. Finally, drug treatment reversed the proinflammatory factors of retinal NF-κB and serum IL-6, and proapoptotic Bax gene expression, while increased antiapoptotic Bcl-2 gene expression. CONCLUSIONS These results indicated that DR in db/db mice can be ameliorated by treatment with different proportional three active ingredients from Berberis dictyophylla F. The potential vascular protection mechanisms may be involved in inhibiting the phosphorylation of the MAPK signaling pathway, thus decreasing inflammatory and apoptotic events.
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Affiliation(s)
- Rui Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiaopeng Ai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Ya Hou
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xianrong Lai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Xianli Meng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Xiaobo Wang
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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19
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Feng M, Yin Q, Qi Y, Li L, Lan M, Lai X, Fan M, Zhang J, Li F, Wang W, Lang J. PO-0978 Low-dose radiotherapy as a chemosensitizer of neoadjuvant chemotherapy for LA-NPC: a phase II trial. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07429-6] [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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20
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Yang SH, Wu H, Yi ZJ, Lai X. The PKM2 activator TEPP-46 attenuates MCD feeding-induced nonalcoholic steatohepatitis by inhibiting the activation of Kupffer cells. Eur Rev Med Pharmacol Sci 2021; 25:4017-4026. [PMID: 34156680 DOI: 10.26355/eurrev_202106_26043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The present study aimed to investigate the effect and molecular mechanism of the PKM2 small molecule agonist TEPP-46 on the development of methionine choline-deficient (MCD) diet-induced nonalcoholic steatohepatitis (NASH) in mice. MATERIALS AND METHODS In this study, C57BL/6 mice were fed an MCD diet for 15 days to establish a NASH model. The protein expression levels of pyruvate kinase M2 (PKM2), PKM1, hypoxia-inducible factor-1α (HIF-1α) and NLRP3 in liver Kupffer cells (KCs) were measured by Western blotting. Immunofluorescence analysis was used to analyze the nuclear translocation of PKM2 in KCs, and the levels of IL-1β and TNF-α in mouse serum and the cell polarization indexes were determined. The MCD diet-fed mice were injected with 30 mg/kg of TEPP-46 intraperitoneally every 5 days. After 15 days, the liver tissue and peripheral blood were collected for analysis. RESULTS We found the NASH model was successfully established after the mice were fed an MCD diet for 15 days. MCD feeding promoted the expression of the PKM2 monomer/dimer and inhibited the expression of the PKM2 tetramer in KCs. Immunofluorescence analysis further confirmed that MCD feeding inhibited the nuclear translocation of PKM2. Besides, MCD feeding promoted the expression of HIF-1α and NLRP3 in KCs, promoted M1 KCs polarization and inhibited M2 KCs polarization. Intraperitoneal injection 30 mg/kg of TEPP-46 significantly inhibited the development of MCD diet-induced NASH, alleviated the pathological changes in the liver, improved liver function, promoted the expression of the PKM2 tetramer in KCs, and inhibited the expression of HIF-1α and NLRP3. CONCLUSIONS This study demonstrated that TEPP-46, a small molecule agonist of PKM2, may inhibit the nuclear translocation of PKM2 and the activation of KCs by promoting the expression of PKM2 tetramers in KCs, thus inhibiting the development of MCD diet-induced NASH in mice.
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Affiliation(s)
- S-H Yang
- Department of Hepatobiliary Surgery, Fuling Central Hospital, Chongqing, China.
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21
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Gao J, Pan L, Bi R, Shi Y, Han Y, Tang X, Lai X. Tibetan Medicines and Tibetan Prescriptions for the Treatment of Diabetes Mellitus. Evid Based Complement Alternat Med 2021; 2021:5532159. [PMID: 34055007 PMCID: PMC8149248 DOI: 10.1155/2021/5532159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/04/2021] [Accepted: 03/13/2021] [Indexed: 01/08/2023]
Abstract
Diabetes mellitus (DM) is one of the most serious diseases threatening human health and because of that, it is imperative to look for drugs to tackle it. The Tibetan medicine, a traditional medical system used in China, is currently being the focus of research towards the discovery of new effective drugs against several diseases. Based on the literature survey of Tibetan medicine monographs and drug standards, the Tibetan medicine, and Tibetan prescription used in the traditional Tibetan medical system, here, we summarise the methods indicated for DM treatment. In the Tibetan medical system, 56 types of Tibetan medicine and 25 Tibetan prescriptions were found for the treatment of DM. The most commonly used are Curcuma, Berberidis Cortex, and Carthami Flos. Their names, families, medicinal parts, phytochemical components, and pharmacological activities were described in detail in our research. These Tibetan medicines and prescriptions are valuable gifts from the Tibetan medicine to the world and may be the source of potential drugs for the treatment of DM. With the help of modern phytochemistry, pharmacology, metabonomics, and/or clinical trial methods, further research is needed to prove its medicinal value, identify bioactive components, elucidate potential mechanisms of action, and assess potential side effects or toxicity. This study provides the first available data compilation for the ethnic medical knowledge of Tibetan medicine for the treatment of DM, providing new ideas and sources for drugs against DM.
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Affiliation(s)
- Jie Gao
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Lin Pan
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ruohong Bi
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yi Shi
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yunfeng Han
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xi Tang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xianrong Lai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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22
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Ai X, Yu P, Hou Y, Song X, Luo J, Li N, Lai X, Wang X, Meng X. A review of traditional Chinese medicine on treatment of diabetic retinopathy and involved mechanisms. Biomed Pharmacother 2020; 132:110852. [DOI: 10.1016/j.biopha.2020.110852] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/01/2020] [Accepted: 10/04/2020] [Indexed: 02/06/2023] Open
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23
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Li Q, Zhao C, Zhang Y, Du H, Xu T, Xu X, Zhang J, Kuang T, Lai X, Fan G, Zhang Y. 1H NMR-Based Metabolomics Coupled With Molecular Docking Reveal the Anti-Diabetic Effects and Potential Active Components of Berberis vernae on Type 2 Diabetic Rats. Front Pharmacol 2020; 11:932. [PMID: 32636751 PMCID: PMC7317004 DOI: 10.3389/fphar.2020.00932] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 06/08/2020] [Indexed: 12/12/2022] Open
Abstract
The dried stem bark of Berberis vernae C.K.Schneid., known as “Xiao-bo-pi” in Chinese, is a representative anti-diabetic herb in traditional Tibetan medical system. However, its anti-diabetic mechanisms and active components remain unclear. In this study, 1H NMR-based metabolomics, biochemistry assay, molecular docking, and network analysis were integrated to evaluate the anti-diabetic effects of B. vernae extract on type 2 diabetic rats, and to explore its active components and underlying mechanisms. Diabetes was induced by high-fat diet and streptozotocin. After 30 days of treatment, B. vernae extract significantly decreased the serum levels of fasting blood glucose, insulin, insulin resistance index, glycated serum protein, TNF-α, IL-1β, and IL-6, whereas significantly increased the serum levels of insulin sensitivity index in type 2 diabetic rats. A total of 28 endogenous metabolites were identified by 1H NMR-based metabolomics, of which 9 metabolites that were changed by diabetes were significantly reversed by B. vernae extract. The constructed compound-protein-metabolite-disease (CPMD) interaction network revealed the correlation between chemical constituents, target proteins, differential metabolites, and type 2 diabetes. Ferulic acid 4-O-β-D-glucopyranoside, bufotenidine, jatrorrhizine, and berberine showed good hit rates for both the 30 disease-related proteins and 14 differential metabolites-related proteins, indicating that these four compounds might be the active ingredients of B. vernae against type 2 diabetes. Moreover, pathway analysis revealed that the anti-diabetic mechanisms of B. vernae might be related to its regulation of several metabolic pathways (e.g., butanoate metabolism) and disease-related signal pathways (e.g., adipocytokine signaling pathway). In summary, B. vernae exerts a significant anti-diabetic effect and has potential as a drug candidate for the treatment of type 2 diabetes.
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Affiliation(s)
- Qi Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chengcheng Zhao
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yunsen Zhang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Huan Du
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Tong Xu
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xinmei Xu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jing Zhang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Tingting Kuang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xianrong Lai
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Gang Fan
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yi Zhang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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24
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Lai X, Qi A, Liu Y, Mendoza LEDR, Liu Z, Lin Z, Khan MFR. Evaluating Inoculation Methods to Infect Sugar Beet with Fusarium oxysporum f. betae and F. secorum. Plant Dis 2020; 104:1312-1317. [PMID: 32181721 DOI: 10.1094/pdis-09-19-1895-re] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Minnesota and North Dakota combined contain 55% of the sugar beet production area in the United States, contributing to 49% of the nation's sugar beet production in 2018. Fusarium diseases caused by Fusarium oxysporum f. betae and F. secorum on sugar beet can cause significant reduction in both root yield and sucrose concentration and purity. The objective of this research was to identify an alternative artificial inoculation method to induce Fusarium diseases on sugar beet leaves and roots caused by both Fusarium spp. in greenhouse conditions to better aid in research efforts. We tested four inoculation methods, including barley to seed, barley to root, drenching, and cutting. and compared them with the conventional root-dipping inoculation method. The inoculation method of placing Fusarium-colonized barley seed close to sugar beet seed (barley to seed) caused levels of symptom severities on both leaves and roots similar to the root-dipping method. Because the traditional root-dipping method involves a laborious transplant process, use of infected barley seed as inoculum may serve as an alternative method in the evaluation of host resistance and pathogen virulence among Fusarium diseases by Fusarium spp. on sugar beet at the seed or seedling stage.
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Affiliation(s)
- X Lai
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58108-6050, U.S.A
| | - A Qi
- School of Life and Medical Sciences, University of Hertfordshire, Hatfield, AL10 9AB, U.K
| | - Y Liu
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58108-6050, U.S.A
| | - L E Del Río Mendoza
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58108-6050, U.S.A
| | - Z Liu
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58108-6050, U.S.A
| | - Z Lin
- Department of Agricultural and Biosystems Engineering, North Dakota State University, Fargo, ND 58108-6050, U.S.A
| | - M F R Khan
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58108-6050, U.S.A
- University of Minnesota, St. Paul, MN, U.S.A
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25
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Bi R, Gao J, Pan L, Lai X. Progress in the Treatment of Diabetes Mellitus Based on Intestinal Flora Homeostasis and the Advancement of Holistic Analysis Methods. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20918418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Diabetes mellitus (DM) is a complex metabolic disorder characterized by abnormal glucose metabolism, which is accompanied by alterations in energy metabolism, intestinal bacterial metabolism, amino acid metabolism, lipid metabolism, nucleotide metabolism, and others. However, intestinal flora metabolism plays a fundamental role in host metabolism; they are complementary to each other and help maintain homeostasis, thus ensuring the normal operation of the host metabolic system. This suggests that a holistic analysis method would be of great use in the study of the overall metabolism in patients with DM. With this in mind, this review summarizes the mechanism of intestinal flora metabolism regarding the occurrence of DM and assesses the effects of drug treatments on the intestinal flora of patients with diabetes. Based on these results, we combined intestinal flora metabolism with host metabolism to evaluate the necessity and the advantages of holistic metabonomics analyses in the treatment of DM and its complications.
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Affiliation(s)
- Ruohong Bi
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, China
| | - Jie Gao
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, China
| | - Lin Pan
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, China
| | - Xianrong Lai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, China
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, China
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Lai X, Yuan Y, Chen Z, Peng J, Sun H, Zhong H. Adsorption–Desorption Properties of Granular EP/HMO Composite and Its Application in Lithium Recovery from Brine. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00668] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xianrong Lai
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, P. R. China
| | - Yijia Yuan
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, P. R. China
| | - Zhouqin Chen
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, P. R. China
| | - Jiahui Peng
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, P. R. China
| | - Hao Sun
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, P. R. China
| | - Hui Zhong
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, P. R. China
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Ai X, Hou Y, Wang X, Wang X, Liang Y, Zhu Z, Wang P, Zeng Y, Li X, Lai X, Meng X, Li Q. Amelioration of dry eye syndrome in db/db mice with diabetes mellitus by treatment with Tibetan Medicine Formula Jikan Mingmu Drops. J Ethnopharmacol 2019; 241:111992. [PMID: 31150794 DOI: 10.1016/j.jep.2019.111992] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 01/26/2019] [Revised: 05/22/2019] [Accepted: 05/27/2019] [Indexed: 05/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Jikan Mingmu Drops (JMD), a traditional Tibetan medicine containing six herbs, has been used to treat dry eye syndrome (DES) in individuals with diabetes mellitus. AIM OF STUDY However, the activity of JMD ameliorates DES with diabetes mellitus has not been previously examined. The aim of the study is to investigate the molecular mechanism of JMD on db/db mice. MATERIALS AND METHODS The main chemical constituents of JMD were analyzed by high-performance liquid chromatography and gas chromatography-mass spectrometry. DES was then induced in db/db mice by applying 0.2% benzalkonium chloride to the ocular surface for 7 days. Eye drops containing JMD (0.25, 0.5, or 1 g/mL) or vehicle subsequently were administered three times daily for another 7 days, and the therapeutic effects were evaluated by phenol red thread tear and sodium fluorescein tests. Conjunctival specimens were subjected to hematoxylin and eosin staining and periodic acid-Schiff staining to examine pathological changes and number of goblet cells. ELISA was performed to assess the levels of various inflammatory cytokines. RESULTS JMD contains hydroxysafflor yellow A, magnoflorine, jatrorrhizine hydrochloride, palmatine hydrochloride, berberine hydrochloride, gallic acid, ellagic acid, tauroursodeoxycholic acid, camphor, isoborneol, borneol, trans-cinnamic acid, and muscone. JMD treatment significantly increased the tear volume, decreased the corneal fluorescein staining score, restored the morphology and structure of conjunctival epithelial cells, and markedly downregulated the levels of interleukin (IL)-6, IL-17α, IL-1β, tumor necrosis factor-α, and vascular endothelial growth factor in the conjunctiva. Further data showed that these protective effects were accompanied by inhibition of inflammation in a dose-dependent manner. CONCLUSIONS Amelioration of DES in db/db mice with diabetes mellitus by treatment with Tibetan medicine formula JMD maybe related to its anti-inflammatory effects.
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Affiliation(s)
- Xiaopeng Ai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Ya Hou
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiaobo Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiaoyan Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yusheng Liang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Zhengwen Zhu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Ping Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yong Zeng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xianjia Li
- Tibetan Medical College, Qinghai University, Xining, 810001, China
| | - Xianrong Lai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Xianli Meng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Qi'en Li
- Tibetan Medical College, Qinghai University, Xining, 810001, China.
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Zhang C, Zhou Y, Lai X, Zhou G, Wang H, Feng X, Chen Y, Wu Y, Wang T, Ma L. Human Umbilical Cord Mesenchymal Stem Cells Alleviate Myocardial Endothelial-Mesenchymal Transition in a Rat Dilated Cardiomyopathy Model. Transplant Proc 2019; 51:936-941. [PMID: 30979486 DOI: 10.1016/j.transproceed.2019.01.080] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 09/20/2018] [Accepted: 01/17/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND Human umbilical cord-derived mesenchymal stem cells (HuMSCs) have been shown to suppress cardiac fibrosis; however, the underlying mechanisms are not fully understood. Recent studies have shown that endothelial-mesenchymal transition (EndMT) plays a crucial part in myocardial fibrosis. In the present study, we investigated the suppressive role of HuMSCs in cardiac fibrosis and related mechanisms in a rat dilated cardiomyopathy (DCM) model. METHODS Male Lewis rats were randomly divided into 3 groups. Rats without any treatment served as a negative control group, while the DCM rats, which were generated by immunization with porcine myosin, were divided into 2 groups: a HuMSC group, in which HuMSCs (1 × 106 cells/rat) were injected intravenously, and a vehicle group, in which rats were injected with volume-matched solution containing no HuMSCs. Histologic and immunofluorescent measurements were used to evaluate the effects of HuMSCs on cardiac fibrosis and EndMT. RESULTS We observed a significant increase in myocardial fibrosis, and elevated EndMT in rats of the vehicle group were observed compared with those in the negative control group along with the increased activity of transforming growth factor (TGF)-β1/extracellular signal-regulated kinase (ERK) 1/2 signaling. Treatment with HuMSCs repressed the increase in myocardial fibrosis and EndMT observed in DCM rats, which correlated with decreased activity of TGF-β1/ERK1/2 signaling. CONCLUSION The HuMSCs attenuated cardiac fibrosis at least partly through the inhibition of TGF-β/ERK-induced EndMT.
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Affiliation(s)
- C Zhang
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Y Zhou
- Department of Neurology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - X Lai
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - G Zhou
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China; Department of Paediatrics, Children's Hospital of Shenzhen, Guangdong, China
| | - H Wang
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - X Feng
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Y Chen
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Y Wu
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - T Wang
- Department of Pediatrics, Beijing Children's Hospital, Capital Medical Hospital, Beijing, China.
| | - L Ma
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China; Department of Paediatrics, Children's Hospital of Shenzhen, Guangdong, China; Department of Pediatrics, Maternal and Child Health Care Hospital of Pingshan District, Shenzhen, Guangdong, China.
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Lai X, Tong D, Ai X, Wu J, Luo Y, Zuo F, Wei Z, Li Y, Huang W, Wang W, Jiang Q, Meng X, Zeng Y, Wang P. Amelioration of diabetic nephropathy in db/db mice treated with tibetan medicine formula Siwei Jianghuang Decoction Powder extract. Sci Rep 2018; 8:16707. [PMID: 30420600 PMCID: PMC6232159 DOI: 10.1038/s41598-018-35148-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 10/30/2018] [Indexed: 12/27/2022] Open
Abstract
Siwei Jianghuang Decoction Powder (SWJH) documented originally in the Four Medical Tantras-Blue Glaze exhibited beneficial effects on diabetic nephropathy (DN) via combined synergistically action of multiple formula components including Curcumae longae Rhizoma, Berberidis dictyophyllae Cortex, Phyllanthi Fructus and Tribuli Fructus. This study investigated the effects of SWJH on DN in db/db mice and possible underlying mechanisms. The ten weeks old db/db mice treated with SWJH by intra-gastric administration once a day for 8 weeks. After 8 weeks, body weight, water and food intake of mice were recorded. The level of fasting blood glucose (FBG) was measured. Serum creatinine (Scr), blood urea nitrogen (BUN), urine microalbumin (UMAlb), serum uric acid (UA) and urinary albumin excretion (UAE) were detected. An enzyme-linked immunosorbent assay was performed to test serum vascular endothelial growth factor (VEGF) and transforming growth factor-β1 (TGF-β1). Real-time PCR and Western blot analysis were used to test mRNA and protein expression of hypoxia inducible factor-1α (HIF-1α), VEGF and TGF-β1 in kidney tissue. SWJH treatment significantly reduced the levels of FBG, Scr, BUN, UMAlb, UA and UAE and retarded renal fibrosis. SWJH treatment further significantly reduced serum TGF-β1 level and downregulated the expression of HIF-1α, VEGF and TGF-β1 at both mRNA and protein levels. Principal component analysis and partial least squares regression and hierarchical cluster analysis demonstrated that SWJH treatment significantly ameliorated renal damage in DN mice. These consequences suggested that SWJH formulations were effective in the treatment of DN through regulating the HIF-1α, VEGF and TGF-β1 overexpression.
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Affiliation(s)
- Xianrong Lai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Dong Tong
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiaopeng Ai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jiasi Wu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yu Luo
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Fang Zuo
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Zhicheng Wei
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yanqiao Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Wanyi Huang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Wenqian Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Qing Jiang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xianli Meng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yong Zeng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Ping Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
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Lang J, Li L, Huang J, Feng M, Qi Y, Lai X. Targeting Inhibition of EGFR Nuclear Nuclear Transport Sensitizes Cervical Cancer Cells to Ionizing Radiation. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.608] [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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Zhou TC, Li X, Chen LJ, Fan JH, Lai X, Tang Y, Zhang L, Wei J. Differential expression profile of hepatic circular RNAs in chronic hepatitis B. J Viral Hepat 2018; 25:1341-1351. [PMID: 29888838 DOI: 10.1111/jvh.12944] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 05/14/2018] [Indexed: 12/16/2022]
Abstract
CircRNAs exert gene regulatory effects by sequestering target microRNAs (miRNAs) and play a vital role in the onset and development of disease. Until recently, little has been known about the expression, regulation and biological function of circRNAs in both health and chronic hepatitis B (CHB).To identify hepatic circRNAs associated with CHB, we performed RNA sequencing using liver biopsies from untreated CHB patients and controls. We then established a bioinformatics pipeline for identification of CHB-associated circRNAs and in silico analysis of the circRNA-miRNA-mRNA pathways. We used quantitative reverse transcription polymerase chain reaction (qRT-PCR) to confirm these results. The profiles of hepatic circRNA expression were significantly different in CHB compared with controls, with a total of 99 dysregulated circRNAs identified to be correlated with CHB. Computational analysis of the circRNA-miRNA-mRNA pathways revealed a large number of miRNAs (665), which were putatively targeted by the differentially expressed hepatic circRNAs. Interestingly, four of the predicted CHB-related circRNA-miRNA-mRNA pathways were found to be involved in the pathogenesis of HBV infection and progression of HBV-associated liver disease. Among these pathways, regression analysis of gene expression revealed a strong positive correlation between hsa_circ_0000650 and TGFβ2 and a negative correlation between hsa_circ_0000650 and miR-6873-3p, which hinted that hsa_circ_0000650 interacted with TGFβ2 mediated by miR-6873-3p. This study firstly demonstrates that patients with CHB present different profiles of hepatic circRNAs and circRNA/miRNA interactions. Thus, circRNAs have promise as novel mechanisms underlying the pathogenesis and progression of CHB.
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Affiliation(s)
- T-C Zhou
- Central lab, Liver disease research center, the Second People's Hospital of Yunnan Province, Kunming, China
| | - X Li
- Central lab, Liver disease research center, the Second People's Hospital of Yunnan Province, Kunming, China
| | - L-J Chen
- Central lab, Liver disease research center, the Second People's Hospital of Yunnan Province, Kunming, China
| | - J-H Fan
- Central lab, Liver disease research center, the Second People's Hospital of Yunnan Province, Kunming, China.,The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - X Lai
- Central lab, Liver disease research center, the Second People's Hospital of Yunnan Province, Kunming, China
| | - Y Tang
- The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - L Zhang
- Central lab, Liver disease research center, the Second People's Hospital of Yunnan Province, Kunming, China
| | - J Wei
- Central lab, Liver disease research center, the Second People's Hospital of Yunnan Province, Kunming, China
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Zhou TC, Lai X, Feng MH, Tang Y, Zhang L, Wei J. Systematic review and meta-analysis: Development of hepatocellular carcinoma in chronic hepatitis B patients with hepatitis e antigen seroconversion. J Viral Hepat 2018; 25:1172-1179. [PMID: 29741285 DOI: 10.1111/jvh.12928] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 04/10/2018] [Indexed: 12/27/2022]
Abstract
Hepatitis B e antigen (HBeAg) seroconversion is considered to have significantly favourable clinical outcomes for patients with chronic hepatitis B (CHB). However, inconsistent study results suggest that hepatocellular carcinoma (HCC) still occurs in patients with HBeAg seroconversion. We performed a systematic review and meta-analysis to determine the incidence of HCC in patients with CHB after HBeAg seroconversion. Web of Science, PubMed and Embase databases were searched through January 2017. The incidence of HCC in CHB patients after HBeAg seroconversion was pooled using a random-effects model or fix-effects model. Sixteen studies were finally included, involving 4910 patients with HBeAg seroconversion. The overall pooled proportion suggested that 3.33% (95% confidence interval (CI): 2.28%-4.58%) of patients with CHB develop HCC despite HBeAg seroconversion. In patients with HBeAg seroconversion without cirrhosis, the pooled proportion of HCC development was 0.94% (95% CI: 0.15%-2.4%). Moreover, patients with cirrhosis, active hepatitis, or aged greater than 40 years at the time of HBeAg seroconversion were at significantly higher risk for HCC development. HBeAg seroconversion was significantly associated with a reduced risk of HCC compared with persistently positive HBeAg (RR = 0.58, 95% CI: 0.35-0.97, P = .04). Despite the reduced risk with HBeAg seroconversion, HCC can still occur in a proportion of patients with CHB after HBeAg seroconversion. Long-term monitoring is needed for patients with established cirrhosis, active hepatitis or those older than 40 years at the time of HBeAg seroconversion.
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Affiliation(s)
- T-C Zhou
- Central Lab, Liver Disease Research Center, the Second People's Hospital of Yunnan Province (The Fourth Affiliated Hospital of Kunming Medical University), Kunming, China
| | - X Lai
- Central Lab, Liver Disease Research Center, the Second People's Hospital of Yunnan Province (The Fourth Affiliated Hospital of Kunming Medical University), Kunming, China
| | - M-H Feng
- Central Lab, Liver Disease Research Center, the Second People's Hospital of Yunnan Province (The Fourth Affiliated Hospital of Kunming Medical University), Kunming, China
| | - Y Tang
- The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - L Zhang
- Central Lab, Liver Disease Research Center, the Second People's Hospital of Yunnan Province (The Fourth Affiliated Hospital of Kunming Medical University), Kunming, China
| | - J Wei
- Central Lab, Liver Disease Research Center, the Second People's Hospital of Yunnan Province (The Fourth Affiliated Hospital of Kunming Medical University), Kunming, China
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Abstract
Myocardial perfusion imaging (MPI) using rest/stress single photon emission computed tomography (SPECT) allows non-invasive assessment of reversible cardiac perfusion defects. Conventionally, reversible defects are identified using a difference image, called reversible map, obtained by subtracting the stress image from the rest image after registration and normalization of the two images. The identification of reversible defects using the conventional subtraction method is however limited by noise. We propose to jointly reconstruct rest and stress projection data to directly obtain the reversible map in a single reconstruction framework to improve the detectability of reversible defects. To evaluate the performance of the proposed method, we performed phantom studies to mimic reversible defects with different levels of severity and doses. As compared to the conventional subtraction method, the joint method yielded reversible maps with much lower noise and improved defect detectability. At a normal clinical dose level, the joint method improved the signal to noise ratio (SNR) of defect contrast in reversible maps from 13.2 to 66.4, 9.7 to 35.0, 6.1 to 13.2, and 3.1 to 6.5, for defect to normal myocardium concentration ratios of 0%, 25%, 50%, and 75%, respectively. The SNRs obtained using the joint method were improved from 6.1 to 13.2, 3.9 to 9.4, 3.0 to 8.0, and 2.1 to 7.1, for 100%, 75%, 50%, and 25% of the normal clinical dose as compared to the conventional subtraction method. To access clinical feasibility, we applied the joint method to a rest/stress SPECT MPI patient study. The joint method yielded a reversible map with much lower noise, translating into a much higher defect detectability as compared to the conventional subtraction method. Our results indicate that the joint method has the potential to improve radiologists' performance for assessing defects in rest/stress SPECT MPI. In addition, the joint method can be used to reduce dose or imaging time.
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Affiliation(s)
- X Lai
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Boston, MA 02114, United States of America. Department of Radiology, Harvard Medical School, Boston, MA 02115, United States of America
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Guo Y, Zhang J, Lai X, Chen M, Guo Y. Tim-3 exacerbates kidney ischaemia/reperfusion injury through the TLR-4/NF-κB signalling pathway and an NLR-C4 inflammasome activation. Clin Exp Immunol 2018; 193:113-129. [PMID: 29570768 DOI: 10.1111/cei.13126] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2018] [Indexed: 12/21/2022] Open
Abstract
T cell immunoglobulin domain and mucin domain-containing molecule-3 (Tim-3), a member of the immunoglobulin superfamily, has been shown to play a crucial role in host adaptive immunity and tolerance. However, its role in kidney ischaemia-reperfusion injury (IRI) remains unknown. In this study, we investigated the role and mechanism of Tim-3 signalling after kidney IRI. In an established murine model of kidney IRI, we found that Tim-3 expression is enhanced on monocytes/macrophages. Anti-Tim-3 antibody RMT3-23 ameliorates biochemical and histological kidney injury, reduces apoptosis and decreases macrophage infiltration and cytokine production in ischaemic kidneys. Cell culture experiments also demonstrated that the role of Tim-3 in IRI-induced macrophage activation leads to the secretion of proinflammatory cytokines and chemokines. In addition, Toll-like receptor (TLR)-4 and Nod-like receptor (NLR) family CARD domain-containing protein 4 (NLR-C4) expression were enhanced after kidney IRI and decreased significantly by RMT3-23. Tim-3 not only promotes TLR-mediated nuclear factor kappa B (NF-κB) activation and cytokine and chemokine release, but also participates in NLR-C4 inflammasome activation. Taken together, our data confirm that Tim-3 signalling enhances injury after kidney IRI and demonstrated that Tim-3 is involved in regulating TLR-4/NF-κB signalling and NLR-C4 inflammasome activation, which provide evidence that Tim-3 signalling is critical for kidney IRI and may provide a new means to ameliorate kidney tissue immune responses in the clinics.
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Affiliation(s)
- Y Guo
- Department of Nephrology, Shandong Provincial Third Hospital, Ji'nan, China
| | - J Zhang
- Department of Interventional Radiology and Vascular Anomalies, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - X Lai
- Transplantation Department, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - M Chen
- Department of Interventional Radiology and Vascular Anomalies, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Y Guo
- Department of Nephrology, Shandong Provincial Third Hospital, Ji'nan, China
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Schulz C, Lai X, Bertrams W, Jung AL, Sittka-Stark A, Herkt C, Janga H, Zscheppang K, Stielow C, Schulte L, Hippenstiel S, Vera J, Schmeck B. Makrophagen induzieren eine epitheliale Hyporesponsivität gegen Legionella pneumophila – eine systembiologische Studie. Pneumologie 2018. [DOI: 10.1055/s-0037-1619301] [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: 10/28/2022]
Affiliation(s)
- C Schulz
- Institut für Lungenforschung, Universities of Gießen and Marburg Lung Center, Philipps-Universität Marburg, Deutsches Zentrum für Lungenforschung (DZL)
| | - X Lai
- Laboratory of Systems Tumor Immunology, Dermatologie, Universität Erlangen-Nürnberg
| | - W Bertrams
- Institut für Lungenforschung, Universities of Gießen and Marburg Lung Center, Philipps-Universität Marburg, Deutsches Zentrum für Lungenforschung (DZL)
| | - AL Jung
- Institut für Lungenforschung, Universities of Gießen and Marburg Lung Center, Philipps-Universität Marburg, Deutsches Zentrum für Lungenforschung (DZL)
| | - A Sittka-Stark
- Institut für Lungenforschung, Universities of Gießen and Marburg Lung Center, Philipps-Universität Marburg, Deutsches Zentrum für Lungenforschung (DZL)
| | - C Herkt
- Institut für Lungenforschung, Universities of Gießen and Marburg Lung Center, Philipps-Universität Marburg, Deutsches Zentrum für Lungenforschung (DZL)
| | - H Janga
- Institut für Lungenforschung, Universities of Gießen and Marburg Lung Center, Philipps-Universität Marburg, Deutsches Zentrum für Lungenforschung (DZL)
| | - K Zscheppang
- Medizinische Klinik mit Schwerpunkt Infektiologie und Pneumologie, Charité Universitätsmedizin Berlin
| | - C Stielow
- Institut für Lungenforschung, Universities of Gießen and Marburg Lung Center, Philipps-Universität Marburg, Deutsches Zentrum für Lungenforschung (DZL)
| | - L Schulte
- Institut für Lungenforschung, Universities of Gießen and Marburg Lung Center, Philipps-Universität Marburg, Deutsches Zentrum für Lungenforschung (DZL)
| | - S Hippenstiel
- Medizinische Klinik mit Schwerpunkt Infektiologie und Pneumologie, Charité Universitätsmedizin Berlin
| | - J Vera
- Laboratory of Systems Tumor Immunology, Dermatologie, Universität Erlangen-Nürnberg
| | - B Schmeck
- Institut für Lungenforschung, Universities of Gießen and Marburg Lung Center, Philipps-Universität Marburg, Deutsches Zentrum für Lungenforschung (DZL); Klinik für Innere Medizin mit Schwerpunkt Pneumologie, Philipps-Universität Marburg, Deutsches Zentrum für Lungenforschung (DZL)
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Liu Y, Xiang L, Zhang Y, Lai X, Xiong C, Li J, Su Y, Sun W, Chen S. DNA barcoding based identification of Hippophae species and authentication of commercial products by high resolution melting analysis. Food Chem 2018; 242:62-67. [DOI: 10.1016/j.foodchem.2017.09.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 09/02/2017] [Accepted: 09/08/2017] [Indexed: 10/18/2022]
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Luoh SW, Wagoner W, Lai X, Hu Z, Chin K, Ramsey B. Abstract P2-08-03: An essential role of GRB7 in promoting the growth of therapy resistant HER-2 positive human breast cancer cells in culture and animal models. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p2-08-03] [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: 11/16/2022]
Abstract
Abstract
Background- GRB7 gene encodes a multi-domain signal transduction molecule and is part of the core of the HER-2 amplicon. GRB7 is commonly co-amplified and over-expressed with HER-2 in human breast cancer. Earlier studies found a functional role of GRB7 in breast cancer. The role of GRB7 in HER-2 positive human breast cancer resistant to HER-2 targeted therapy remains unexplored however.
Materials and Methods- HCC-1954, 21MT1 and JimT1 are human HER-2 positive breast cancer cell lines that are resistant to trastuzumab and lapatinib treatment. Transient knock down of GRB7 protein expression was achieved with siRNA transfection and stable knock down with lentiviral vector mediated shRNA over-expression. Cell lines transfected with non-targeting siRNA or shRNA serve as negative controls. Knock down of GRB7 protein expression is verified by Western blotting. The growth of human breast cancer cell lines after GRB7 knock down in vitro is measured with the CellTiter Glo assay as well as the Incucyte live cell imaging. Activation status of specific signaling pathways was examined with phospho-specific antibody by immune-blotting and immune-precipitation. To assess the growth promoting function of GRB7 in human breast cancer cell lines in vivo, polyclonal HCC-1954, 21MT1 and JimT1 cells, with GRB7 knock down or their corresponding negative control, were orthotopically injected into the mammary fat pads of female immune-deficient NSG mice. The growth rates of these tumors, measured serially with caliper, and final tumor weights were compared between GRB7 knock down and the negative control. The proliferation rate and apoptosis of these tumors were studied with ki-67 staining and Tunel assay.The effects of GRB7 knock down on signaling were investigated with a proteome profiler receptor tyrosine kinase kit (R&D). The role of signaling molecules differentially activated in the growth of breast cancer cells by GRB7 knock down was examined utilizing siRNA mediated knock down, and antibody and small molecule inhibitors.
Results- GRB7 knock down decreased the growth of HCC-1954, 21MT1 and JimT1 cells in vitro and the growth of tumor xenograft these cells formed in animal models. When assayed by ki67 staining and Tunel assay, the mechanism of reduced tumor xenograft growth appeared to be distinct. Reduced proliferation and increased apoptosis were seen in 21MT1 cells, while reduced proliferation was seen in HCC-1954 cells and increased apoptosis in JimT1 cells. Protein profiling found that tyrosine phosphorylation of candidate signaling molecules was reduced with GRB7 knock down in JimT1 cells. Immuno-blotting and immuno-precipitation experiments were performed to evaluate these effects in other cell lines. The effect of targeting these molecules in breast cancer cell growth by siRNA and inhibitors is being examined.
Discussion- GRB7 has essential growth promoting function in therapy resistant HER-2 positive human breast cancer cells. GRB7 knock down has pleiotropic effects on signaling in various cellular contexts. The potential of targeting GRB7 signaling in treating therapy resistant HER-2 positive breast cancer merits further study.
Citation Format: Luoh S-W, Wagoner W, Lai X, Hu Z, Chin K, Ramsey B. An essential role of GRB7 in promoting the growth of therapy resistant HER-2 positive human breast cancer cells in culture and animal models [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P2-08-03.
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Affiliation(s)
- S-W Luoh
- Oregon Health Sciences University, Portland, OR; VA Portland Health Care System, Portland, OR
| | - W Wagoner
- Oregon Health Sciences University, Portland, OR; VA Portland Health Care System, Portland, OR
| | - X Lai
- Oregon Health Sciences University, Portland, OR; VA Portland Health Care System, Portland, OR
| | - Z Hu
- Oregon Health Sciences University, Portland, OR; VA Portland Health Care System, Portland, OR
| | - K Chin
- Oregon Health Sciences University, Portland, OR; VA Portland Health Care System, Portland, OR
| | - B Ramsey
- Oregon Health Sciences University, Portland, OR; VA Portland Health Care System, Portland, OR
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Li W, Huang L, Zeng J, Lin W, Li K, Sun J, Huang W, Chen J, Wang G, Ke Q, Duan J, Lai X, Chen R, Liu M, Liu Y, Wang T, Yang X, Chen Y, Xia H, Xiang AP. Characterization and transplantation of enteric neural crest cells from human induced pluripotent stem cells. Mol Psychiatry 2018; 23:499-508. [PMID: 27777423 PMCID: PMC5822467 DOI: 10.1038/mp.2016.191] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 08/07/2015] [Accepted: 09/14/2016] [Indexed: 12/30/2022]
Abstract
The enteric nervous system (ENS) is recognized as a second brain because of its complexity and its largely autonomic control of bowel function. Recent progress in studying the interactions between the ENS and the central nervous system (CNS) has implicated alterations of the gut/brain axis as a possible mechanism in the pathophysiology of autism spectrum disorders (ASDs), Parkinson's disease (PD) and other human CNS disorders, whereas the underlying mechanisms are largely unknown because of the lack of good model systems. Human induced pluripotent stem cells (hiPSCs) have the ability to proliferate indefinitely and differentiate into cells of all three germ layers, thus making iPSCs an ideal source of cells for disease modelling and cell therapy. Here, hiPSCs were induced to differentiate into neural crest stem cells (NCSCs) efficiently. When co-cultured with smooth muscle layers of ganglionic gut tissue, the NCSCs differentiated into different subtypes of mature enteric-like neurons expressing nitric oxide synthase (nNOS), vasoactive intestinal polypeptide (VIP), choline acetyltransferase (ChAT) or calretinin with typical electrophysiological characteristics of functional neurons. Furthermore, when they were transplanted into aneural or aganglionic chick, mouse or human gut tissues in ovo, in vitro or in vivo, hiPSC-derived NCSCs showed extensive migration and neural differentiation capacity, generating neurons and glial cells that expressed phenotypic markers characteristic of the enteric nervous system. Our results indicate that enteric NCSCs derived from hiPSCs supply a powerful tool for studying the pathogenesis of gastrointestinal disorders and brain/gut dysfunction and represent a potentially ideal cell source for enteric neural transplantation treatments.
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Affiliation(s)
- W Li
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China,Department of Biochemistry, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, China,Guangdong Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China
| | - L Huang
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - J Zeng
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Department of Pediatric Surgery, Guangzhou Women and Children's Medical Centre, Guangzhou, China
| | - W Lin
- Department of Blood Transfusion, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - K Li
- Department of Ultrasound, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - J Sun
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - W Huang
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - J Chen
- Department of Histology and Embryology, School of Medicine, Jinan University, Guangzhou, China
| | - G Wang
- Department of Histology and Embryology, School of Medicine, Jinan University, Guangzhou, China
| | - Q Ke
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China,Department of Cell Biology, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, China
| | - J Duan
- Center for Neurobiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - X Lai
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - R Chen
- Center for Reproductive Medicine, Key Laboratory for Reproductive Medicine of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - M Liu
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - Y Liu
- Shenzhen Beike Cell Engineering Research Institute, Shenzhen, China
| | - T Wang
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China,Department of Biochemistry, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, China
| | - X Yang
- Department of Histology and Embryology, School of Medicine, Jinan University, Guangzhou, China
| | - Y Chen
- Center for Neurobiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - H Xia
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Department of Pediatric Surgery, Guangzhou Women and Children's Medical Centre, Guangzhou, China,Guangzhou Women and Children's Medical Centre, No. 9, Jinsui Road, Guangzhou, Guangdong 510623, China
| | - A P Xiang
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China,Department of Biochemistry, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, China,Guangdong Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China,Center for Stem Cell Biology and Tissue Engineering, Sun Yat-sen University, No. 74, Zhongshan 2nd Road, Guangzhou, Guangdong 510080, China. E-mail: or
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Zhang X, Han Y, Song L, Huo L, Lai X, Zhang Y, Zhang J, Hua Z. A protective role for FADD dominant negative (FADD-DN) mutant in trinitrochlorobenzene (TNCB)-induced murine contact hypersensitivity reactions. Clin Exp Dermatol 2017; 43:380-388. [PMID: 29277981 DOI: 10.1111/ced.13303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2017] [Indexed: 12/30/2022]
Abstract
BACKGROUND Fas-associated protein with death domain (FADD) is a classic adaptor protein in apoptosis. Increasing evidence has shown that FADD is also implicated in T-cell development, activation and proliferation. The role of FADD in inflammatory disorders remains largely unexplored. AIM To assess the role of FADD in inflammatory disorders. METHODS We established an experimental model of contact hypersensitivity (CHS) by using 2,4,6-trinitrochlorobenzene (TNCB) on transgenic mice expressing a dominant negative mutant of FADD (FADD-DN), RESULTS: CHS responses were clearly attenuated in FADD-DN mice compared with control mice. In the retroauricular lymph nodes, the ratio of CD8+ T cells was also decreased. CONCLUSION FADD-DN appears to play a protective role in TNCB-induced CHS reactions.
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Affiliation(s)
- X Zhang
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.,Changzhou High-Tech Research Institute of Nanjing Universityand Jiangsu TargetPharma Laboratories Inc., Changzhou, China
| | - Y Han
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - L Song
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - L Huo
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - X Lai
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Y Zhang
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - J Zhang
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Z Hua
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.,Changzhou High-Tech Research Institute of Nanjing Universityand Jiangsu TargetPharma Laboratories Inc., Changzhou, China.,Shenzhen Research Institute of Nanjing University, Shenzhen, China
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40
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Zhu J, Guo M, Yang T, Lai X, Lei YY, He ML, Chen J, Li TY. [Association between behavioral problems and gastrointestinal disorders among children with autism spectrum disorder]. Zhonghua Er Ke Za Zhi 2017; 55:905-910. [PMID: 29262469 DOI: 10.3760/cma.j.issn.0578-1310.2017.12.007] [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 investigate the relationship between gastrointestinal disorders (GID) and core symptoms or behavioral problems among the children with autism spectrum disorder (ASD) . Method: Totally 328 children with ASD and 202 normal controls were enrolled in this cross-sectional study from August 2013 to October 2016. The information about the gastrointestinal disorders, behavioral and emotional problems was collected by using questionnaires. Childhood Autism Rating Scale (CARS), Autism Behavior Checklist (ABC) were used to assess the core symptoms of the children with ASD. Neurodevelopmental status was evaluated with Gesell Developmental Scale (GDS). These variables were analyzed by using student's t-test and chi-square test. Result: The prevalence of GID was significantly higher in the children with ASD than in the normally developing children (49.4% (162/328) vs.25.7% (52/202), χ(2)=29.039, P=0.000), especially the symptoms of constipation (33.2% (109/328) vs. 13.9% (28/202)), diarrhea (9.5%(31/328) vs. 1.5% (3/202)), nausea and vomiting (9.5% (31/328) vs. 3.5% (7/202)), and foul defecation (16.5% (54/328) vs. 5.0% (10/202)) (all P<0.05). Among the ASD children, the prevalence of GID was similar between male and female (46.7% (133/285) vs. 46.5%(20/43), χ(2)=0.006, P=0.938), as well as among all age groups (χ(2)=1.907, P=0.862). There was no significant difference in scores of GDS in the ASD children with or without GID (all P>0.05). Compared with ASD children without GID (n=166), the ASD children with GID (n=162) got higher scores in the "Body and Object Use" of ABC scale ( (16.4±9.3) vs. (12.3±6.7) scores, t=2.258, P=0.028), and had more emotional problems (63.6% (103/162) vs. 49.4% (82/166), χ(2)=6.707, P=0.010). Moreover, the score of behavior problems questionnaire was higher in the ASD children with GID ( (35.3±16.8) vs. (16.1±13.6) scores, t=5.748, P=0.000). Conclusion: Children with ASD have higher risk of GID than the normal developing children. While the stereotyped behaviors, problem behaviors and emotional problems are severer in the ASD children with GID. Hence, it is important to provide comprehensive treatment and management for these groups of children.
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Affiliation(s)
- J Zhu
- Children's Nutrition Research Center, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
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41
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Ma D, Yang D, Lai X, Xu F. The therapy of apatinib in the third line of colorectal cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx659.009] [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: 11/13/2022] Open
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42
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Ismaya WT, Efthyani A, Retnoningrum DS, Lai X, Dijkstra BW, Tjandrawinata RR, Rachmawati H. Study of response of Swiss Webster mice to light subunit of mushroom tyrosinase. Biotech Histochem 2017; 92:411-416. [PMID: 28800260 DOI: 10.1080/10520295.2017.1339912] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
The light subunit of mushroom, Agaricus bisporus, tyrosinase (LSMT), has been identified as an extrinsic component of the enzyme. Its function is unknown, but it can cross an epithelial cell layer, which suggests that it can be absorbed by the intestine. A similar capability has been demonstrated for the HA-33 component of the progenitor toxin from Clostridium botulinum, which is the closest structural homolog of LSMT. Unlike HA-33, LSMT appears to be non-immunogenic as shown by preliminary tests in Swiss Webster mice. We investigated the immunogenicity and histopathology of LSMT in mice to determine its safety in vivo. LSMT did not evoke generation of antibodies after prolonged periods of intraperitoneal administration. Histopathological observations confirmed the absence of responses in organs after twelve weekly administrations of LSMT. We found that LSMT is not toxic and is less immunogenic than the C. botulinum HA-33 protein, which supports further research and development for pharmaceutical application.
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Affiliation(s)
- W T Ismaya
- a Dexa Laboratories of Biomolecular Sciences , JABABEKA II Industrial Estate , Cikarang
| | - A Efthyani
- b Research group of Pharmaceutics, School of Pharmacy , Bandung Institute of Technology , Bandung
| | - D S Retnoningrum
- c Research group of Biotechnology, School of Pharmacy , Bandung Institute of Technology , Bandung , Indonesia
| | - X Lai
- d European Synchrotron Radiation Facility , Grenoble , France
| | - B W Dijkstra
- e Laboratory of Biophysical Chemistry , University of Groningen , Groningen , The Netherlands
| | - R R Tjandrawinata
- a Dexa Laboratories of Biomolecular Sciences , JABABEKA II Industrial Estate , Cikarang
| | - H Rachmawati
- b Research group of Pharmaceutics, School of Pharmacy , Bandung Institute of Technology , Bandung.,f Research Center for Nanosciences and Nanotechnology , Bandung Institute of Technology , Bandung , Indonesia
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43
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Chen R, Wang J, Yuan Y, Deng Y, Lai X, Du F, Dong J, Huang X, Cui X, Tang Z. Weigh Biomaterials by Quantifying Species-specific DNA with Real-time PCR. Sci Rep 2017; 7:4774. [PMID: 28684790 PMCID: PMC5500521 DOI: 10.1038/s41598-017-05083-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 05/23/2017] [Indexed: 11/09/2022] Open
Abstract
What's on the label is not what's in the bottle, from food products to herbal medicinal products (HMPs), economically-motivated biomaterials adulteration is a long-term problem affecting the food and drug industry. Accurate identification of the biomaterial ingredients in processed commodities is highly desirable. In this field, DNA-based techniques have proved to be powerful tools to overcome qualitative challenges. However, is it possible to quantify the weight of biological materials with PCR? Therefore, a basic scientific question needs to be answered: what's the relationship between DNA content and the mass of biological materials? Is DNA content directly proportional to the mass of biological materials as most of the researchers previously thought? In this study, we firstly found that there exists a linear relation between DNA contents and the weight of biomaterials indeed when the analytical practices are fully controlled. In this case, the mass of targeted biomaterials in the highly processed commercial products can also be calculated by quantifying the species-specific DNA through classic real-time PCR with a good reproducibility.
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Affiliation(s)
- Rong Chen
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, P. R. China
- Ethnomedicine College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jiayu Wang
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, P. R. China
| | - Yi Yuan
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, P. R. China
| | - Yun Deng
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, P. R. China
| | - Xianrong Lai
- Ethnomedicine College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, P. R. China
| | - Feng Du
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, P. R. China
| | - Juan Dong
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, P. R. China
| | - Xin Huang
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, P. R. China
| | - Xin Cui
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, P. R. China
| | - Zhuo Tang
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, P. R. China.
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
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Zhou T, Yang Y, Zhang L, Liu Y, Lai X, Li Y, Li X, Xiong Y, Yang L, Irwin D. NOVEL GENETIC FINDINGS IN A CHINESE FAMILY WITH EARLY-ONSET FEMALE-RELATED TYPE 2 DIABETES. Acta Endocrinol (Buchar) 2017; 13:364-369. [PMID: 31149201 PMCID: PMC6516578 DOI: 10.4183/aeb.2017.364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
No inheritance of early-onset female-related type 2 diabetes was reported within Chinese families. In this study, we aim to describe the inheritance pattern of type 2 diabetes in a 3-generation family and identify the gene responsible for type 2 diabetes. Genome-wide multipoint parametric linkage analysis revealed a maximum multipoint logarithm of odds (lod) score of 2.1 for a locus being associated with type 2 diabetes in this family on chromosome 20p11.2-12 between 23.5~30.8cM. Type 2 diabetes may be transmitted as an autosomal dominant trait with a high female-related penetrance in this family. Here we describe the first genetic locus for type 2 diabetes at chromosome 20p11.2-12. This region contains 8 known or predicted genes (PLCB1, PLCB4, LAMP5, PAK7, ANKEF1, SNAP25, SLX4IP, and JAG1). Gene SNAP25 which linked to energy or glucose homeostasis associated phenotypes may play a role in the development of type 2 diabetes in this family.
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Affiliation(s)
- T.C. Zhou
- Central Laboratory, Department of Endocrinology, Second People’s Hospital of Yunnan Province, China
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, China
| | - Y. Yang
- Central Laboratory, Department of Endocrinology, Second People’s Hospital of Yunnan Province, China
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, China
| | - L. Zhang
- Central Laboratory, Department of Endocrinology, Second People’s Hospital of Yunnan Province, China
| | - Y.Y. Liu
- Central Laboratory, Department of Endocrinology, Second People’s Hospital of Yunnan Province, China
| | - X. Lai
- Central Laboratory, Department of Endocrinology, Second People’s Hospital of Yunnan Province, China
| | - Y. Li
- Central Laboratory, Department of Endocrinology, Second People’s Hospital of Yunnan Province, China
| | - X. Li
- Central Laboratory, Department of Endocrinology, Second People’s Hospital of Yunnan Province, China
| | - Y.X. Xiong
- Central Laboratory, Department of Endocrinology, Second People’s Hospital of Yunnan Province, China
| | - L. Yang
- The second affiliated hosptial of Kunming Medicial Unversity, Nuclear medicine, Kunming, Yunnan Province, China
| | - D.M. Irwin
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, China
- University of Toronto, Department of Laboratory Medicine and Pathobiology, Toronto, Canada
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Liu Y, Fan G, Zhang J, Zhang Y, Li J, Xiong C, Zhang Q, Li X, Lai X. Metabolic discrimination of sea buckthorn from different Hippophaë species by 1H NMR based metabolomics. Sci Rep 2017; 7:1585. [PMID: 28484246 PMCID: PMC5431470 DOI: 10.1038/s41598-017-01722-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 04/04/2017] [Indexed: 12/16/2022] Open
Abstract
Sea buckthorn (Hippophaë; Elaeagnaceae) berries are widely consumed in traditional folk medicines, nutraceuticals, and as a source of food. The growing demand of sea buckthorn berries and morphological similarity of Hippophaë species leads to confusions, which might cause misidentification of plants used in natural products. Detailed information and comparison of the complete set of metabolites of different Hippophaë species are critical for their objective identification and quality control. Herein, the variation among seven species and seven subspecies of Hippophaë was studied using proton nuclear magnetic resonance (1H NMR) metabolomics combined with multivariate data analysis, and the important metabolites were quantified by quantitative 1H NMR (qNMR) method. The results showed that different Hippophaë species can be clearly discriminated and the important interspecific discriminators, including organic acids, L-quebrachitol, and carbohydrates were identified. Statistical differences were found among most of the Hippophaë species and subspecies at the content levels of the aforementioned interspecific discriminators via qNMR and one-way analysis of variance (ANOVA) test. These findings demonstrated that 1H NMR-based metabolomics is an applicable and effective approach for simultaneous metabolic profiling, species differentiation and quality assessment.
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Affiliation(s)
- Yue Liu
- College of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.,Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610051, China
| | - Gang Fan
- College of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jing Zhang
- College of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yi Zhang
- College of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jingjian Li
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Chao Xiong
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Qi Zhang
- National Institute for Food and Drug Control, Beijing, 100050, China
| | - Xiaodong Li
- National Institute for Food and Drug Control, Beijing, 100050, China.
| | - Xianrong Lai
- College of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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Lang J, Lai X, Gao Y, Feng M, Luo Y, Zhang J, Fan Z, Xu P. Preliminary Results of Metastatic Non-Small Cell Lung Carcinoma Treated With a Novel Hypointensity Modulated Radiation Therapy Modality. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1749] [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: 12/01/2022]
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Schulz C, Lai X, Jung AL, Sittka-Stark A, Herkt C, Bertrams W, Vera J, Schmeck B. Macrophages render alveolar epithelial cells hypo-responsive to Legionella pneumophila. Pneumologie 2016. [DOI: 10.1055/s-0036-1584613] [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]
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48
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Hu Q, Li G, Yao H, He S, Li H, Liu S, Wu Y, Lai X. Edible bird's nest enhances antioxidant capacity and increases lifespan in Drosophila Melanogaster. Cell Mol Biol (Noisy-le-grand) 2016; 62:116-122. [PMID: 27188745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 04/20/2016] [Indexed: 06/05/2023]
Abstract
In this study, we aims to investigate the effects of edible bird's nest (EBN) on anti-aging efficacy. In order to investigate lifespan and mortality rate of flies, we treated flies with various doses of EBN. Besides, fecundity, water content and food are determined and heat-stress test is conducted after flies treating with different medium. Effects of EBN on total antioxidant activity (T-AOC), super-oxide dismutase activity (SOD), catalase activity (CAT), and malondialdehyde (MDA) were examined in drosophila melanogaster. Results indicated that flies in EBN treated group illustrated significantly lower mortality rates and longer median and maximum lifespan compared to control group (P<0.05). The fecundity in EBN-treated group was increased compared to control group. SOD levels and CAT activity were significantly increased, and MDA levels decreased in EBN-treated group compared to control group (P<0.01). In conclusion, EBN can extend lifespan, decrease mortality rate and increase survival rate in heat-stress test, and which can also promote SOD and CAT activity and reduce MDA levels. EBN is able to delay drosophila melanogaster aging, attributing to the increasing antioxidant enzyme activities and decreasing content of lipid peroxidation products in drosophila melanogaster.
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Affiliation(s)
- Q Hu
- Guangzhou University of Chinese Medicine School of Chinese Herbal Medicine Guangzhou China
| | - G Li
- Guangzhou University of Chinese Medicine School of Chinese Herbal Medicine Guangzhou China
| | - H Yao
- Guangzhou University of Chinese Medicine School of Chinese Herbal Medicine Guangzhou China
| | - S He
- Guangzhou University of Chinese Medicine School of Chinese Herbal Medicine Guangzhou China
| | - H Li
- Guangzhou University of Chinese Medicine School of Chinese Herbal Medicine Guangzhou China
| | - S Liu
- Guangzhou University of Chinese Medicine School of Chinese Herbal Medicine Guangzhou China
| | - Y Wu
- Guangzhou University of Chinese Medicine School of Chinese Herbal Medicine Guangzhou China
| | - X Lai
- Guangzhou University of Chinese Medicine Dongguan Mathematical Engineering Academy of Chinese Medicine Dongguan China
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Turner TD, Corzo DMC, Toroz D, Curtis A, Dos Santos MM, Hammond RB, Lai X, Roberts KJ. The influence of solution environment on the nucleation kinetics and crystallisability of para-aminobenzoic acid. Phys Chem Chem Phys 2016; 18:27507-27520. [DOI: 10.1039/c6cp04320h] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The influence of solvent on the solution thermodynamics, nucleation-kinetics and crystal growth of alpha para-aminobenzoic acid (PABA) crystallising from supersaturated solutions, is examined through analysis of the metastable zone width.
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Affiliation(s)
- T. D. Turner
- Institute for Process Research and Development
- School of Chemical and Process Engineering
- University of Leeds
- Woodhouse Lane
- Leeds
| | - D. M. C. Corzo
- Institute for Process Research and Development
- School of Chemical and Process Engineering
- University of Leeds
- Woodhouse Lane
- Leeds
| | - D. Toroz
- Institute for Process Research and Development
- School of Chemical and Process Engineering
- University of Leeds
- Woodhouse Lane
- Leeds
| | - A. Curtis
- Institute for Process Research and Development
- School of Chemical and Process Engineering
- University of Leeds
- Woodhouse Lane
- Leeds
| | - M. M. Dos Santos
- Institute for Process Research and Development
- School of Chemical and Process Engineering
- University of Leeds
- Woodhouse Lane
- Leeds
| | - R. B. Hammond
- Institute for Process Research and Development
- School of Chemical and Process Engineering
- University of Leeds
- Woodhouse Lane
- Leeds
| | - X. Lai
- Institute for Process Research and Development
- School of Chemical and Process Engineering
- University of Leeds
- Woodhouse Lane
- Leeds
| | - K. J. Roberts
- Institute for Process Research and Development
- School of Chemical and Process Engineering
- University of Leeds
- Woodhouse Lane
- Leeds
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50
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Toroz D, Rosbottom I, Turner TD, Corzo DMC, Hammond RB, Lai X, Roberts KJ. Towards an understanding of the nucleation of alpha-para amino benzoic acid from ethanolic solutions: a multi-scale approach. Faraday Discuss 2015; 179:79-114. [PMID: 25920721 DOI: 10.1039/c4fd00275j] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The molecular assembly and subsequent nucleation of para-amino benzoic acid (PABA) from ethanolic solutions is probed using a multi-scale and multi-technique approach. This is applied by examining and interrelating information regarding the molecular, solution-state, cluster, solid-state and surface structures to understand why the alpha form of PABA is crystallised in preference to its low temperature beta form. Calculations suggest that conformational changes within the solute molecule play little or no role in directing the nucleation of either the alpha or beta crystal forms. Combined ab initio and molecular dynamics calculations of the stability of small clusters in solution suggests that the hydrogen-bonded carboxylic acid dimers, present in the alpha structure, are the most stable in solution and play a major role in the self-assembly and polymorphic expression of the alpha form in ethanol in preference to the beta form. These calculations are in good agreement with X-ray small-angle scattering analysis which reveals the presence of PABA clusters in ethanol which are consistent with the size and shape of a carboxylic acid dimer. SAXS studies also reveal the presence of larger cluster structures in a size range 10-40 nm which appear to grow, perhaps reflecting a change in the balance between monomers and dimers within the solution during the nucleation process. The results of crystallisation-kinetics experiments indicate an instantaneous nucleation mechanism where the number of instantaneously nucleated crystallites is calculated to be 1360-660 nuclei per ml and the subsequent growth is found to be only rate limited by diffusion of the growth unit to the crystallite surface. A linear dependence of growth rate with respect to supersaturation is observed for the (0 1 -1) capping face, which is associated with strong π-π stacking interactions. This is consistent with a solid-on-solid mechanism associated with surface roughened growth and concomitant poor lattice-perfection. Conversely, the side (1 0 -1) surface has a growth mechanism consistent with a 2D nucleation birth and spread mechanism. Hence, these mechanisms result in very fast growth along the b-axis and the needle-like morphology that is observed for alpha-PABA.
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Affiliation(s)
- D Toroz
- Institute of Particle Science and Engineering and Institute of Process, Research and Development, School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
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