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Zhong ML, Cai YQ, Tang YF, Dai YL, Jiang YH, Ni Y, Zou CC. Gut microbiota, a potential cause of higher insulin sensitivity in children with Prader-Willi syndrome. J Endocrinol Invest 2024; 47:1029-1036. [PMID: 37728722 DOI: 10.1007/s40618-023-02194-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 09/04/2023] [Indexed: 09/21/2023]
Abstract
PURPOSE Obesity is the main driving factor for comorbidities in Prader-Willi syndrome (PWS) patients due to overeating behaviors. The gut microbiota has been implicated in the etiology of obesity and associated comorbidities. The purpose of the present study was to characterize the fecal microbiota in Chinese patients with PWS and compare it to that of patients with obesity as well as healthy controls. METHODS We conducted a cross-sectional study with 35 PWS patients (PWS), 35 patients with obesity (OB), and 35 healthy controls (HC). Metagenomic sequencing was performed in stool samples. RESULTS The composition of the fecal microbiota in PWS patients differed from that of participants in the OB and HC groups. It was characterized by increased Akkermansia Eubacterium, Eubacterium rectale, and Roseburia intestinalis and decreased Parabacteroides and Phascolarctobacterium. Additionally, the homeostatic model assessment of insulin resistance (HOMA-IR) was lower in PWS patients than in patients with obesity. Spearman rank correlation analysis showed that Achromobacter, Acidiphilium, Xylophilus, and Frisingicoccus were significantly negatively correlated with HOMA-IR. CONCLUSION The composition of the gut microbiota in Chinese PWS patients differed from that in patients with obesity, which might contribute to higher insulin sensitivity in PWS patients.
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Affiliation(s)
- M-L Zhong
- Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, 3333 Binsheng Road, Hangzhou, 310052, Zhejiang Province, China
| | - Y-Q Cai
- Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, 3333 Binsheng Road, Hangzhou, 310052, Zhejiang Province, China
| | - Y-F Tang
- Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, 3333 Binsheng Road, Hangzhou, 310052, Zhejiang Province, China
- Department of Pediatrics, The Second Hospital of Jiaxing, Jiaxing, China
| | - Y-L Dai
- Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, 3333 Binsheng Road, Hangzhou, 310052, Zhejiang Province, China
| | - Y-H Jiang
- Department of Genetics, Yale University School of Medicine, New Haven, USA
| | - Y Ni
- National Clinical Research Center for Child Health, 3333 Binsheng Road, Hangzhou, 310052, Zhejiang Province, China.
| | - C-C Zou
- Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, 3333 Binsheng Road, Hangzhou, 310052, Zhejiang Province, China.
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Dai YL, Zou CC. [The diagnosis and treatment of Prader-Willi syndrome]. Zhonghua Er Ke Za Zhi 2023; 61:190-192. [PMID: 36720608 DOI: 10.3760/cma.j.cn112140-20221126-01005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Y L Dai
- Department of Endocrinology, Children's Hospital, Zhejiang University School of Medicine,Hangzhou 310052, China
| | - C C Zou
- Department of Endocrinology, Children's Hospital, Zhejiang University School of Medicine,Hangzhou 310052, China
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Zhang YP, Li YW, Dai YL, Zhou J, Tu ZM, Jiang B, Wang B. Clinicopathologic and prognostic significance of long non-coding RNA myocardial infarction-associated transcript in multiple cancers. Eur Rev Med Pharmacol Sci 2022; 26:6129-6144. [PMID: 36111915 DOI: 10.26355/eurrev_202209_29631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE The aim of the meta-analysis was to explore the clinicopathological and prognostic significance of long non-coding RNA (lncRNA) myocardial infarction-associated transcript (MIAT) in various cancers. MATERIALS AND METHODS We searched multiple databases, including PubMed, China National Knowledge 53 Infrastructure (CNKI), Springer, Web of Science, and Cochrane, for articles on the prognostic value of lncRNA MIAT in various cancers before 25 March 2021. The odds ratio (OR) and 95% confidence interval (CI) were adopted to evaluate the clinicopathological features and outcomes of cancers. The Cancer Genome Atlas dataset was used to identify the differential expression and prognostic significance of lncRNA MIAT. RESULTS We enrolled 14 publications, including 1,573 cancer patients. Higher lncRNA MIAT expression was significantly related to worse overall survival (OR=3.13, 95% CI: 2.47-3.96, p<0.05), regardless of cancer types, sample size, and follow-up time of the included studies. Additionally, higher lncRNA MIAT expression was associated with larger tumour sizes (OR=1.67, 95% CI: 1.24-2.26, p<0.05), advanced clinical stage (OR=4.79, 95% CI: 3.38-6.79, p<0.05), lymph nodes metastasis (OR=7.33, 95% CI: 4.61-11.67, p<0.05), and distant metastasis (OR=2.62, 95% CI: 1.88-3.66, p<0.05), but not associated with age and gender. We found no publication bias, and sensitivity analysis indicated that the results were reliable. CONCLUSIONS Higher lncRNA MIAT expression may predict larger tumour sizes, advanced clinical stage, metastasis of cancers, and lower overall survival rate. LncRNA MIAT may serve as a useful clinicopathological and prognostic biomarker for cancers.
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Affiliation(s)
- Y-P Zhang
- Department of Spine Surgery, Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China.
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Lin CP, Dai YL, Huang JH, Tsai JN. First Report of Tomato Powdery Mildew Caused by Leveillula taurica in Taiwan. Plant Dis 2022; 106:757. [PMID: 34142846 DOI: 10.1094/pdis-02-21-0366-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- C P Lin
- Plant Pathology Division, Taiwan Agricultural Research Institute, Council of Agriculture, Wufeng, Taichung 41362, Taiwan
| | - Y L Dai
- Plant Pathology Division, Taiwan Agricultural Research Institute, Council of Agriculture, Wufeng, Taichung 41362, Taiwan
| | - J H Huang
- Plant Pathology Division, Taiwan Agricultural Research Institute, Council of Agriculture, Wufeng, Taichung 41362, Taiwan
| | - J N Tsai
- Plant Pathology Division, Taiwan Agricultural Research Institute, Council of Agriculture, Wufeng, Taichung 41362, Taiwan
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Gao F, Zhang N, Wen JM, Li SJ, Zhang SG, Zhang BY, Dai YL, He RN, Huang YS, Yu QQ. Establishment and potential mechanism of recurrent cystitis-induced overactive bladder-like model in female rats. J BIOL REG HOMEOS AG 2021; 34:1465-1470. [PMID: 32883064 DOI: 10.23812/20-09-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- F Gao
- Department of Urology, Hangzhou Hospital of Traditional Chinese Medicine, China
| | - N Zhang
- Department of Urology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - J M Wen
- Department of Urology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - S J Li
- Department of Urology, Zhejiang Provincial People's Hospital, Zhejiang, China
| | - S G Zhang
- Department of Urology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - B Y Zhang
- Department of Pathology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - Y L Dai
- Department of Clinical Laboratory, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Zhejiang, China
| | - R N He
- Department of Urology, Hangzhou Hospital of Traditional Chinese Medicine, China
| | - Y S Huang
- Department of Urology, Hangzhou Hospital of Traditional Chinese Medicine, China
| | - Q Q Yu
- Department of Urology, Hangzhou Hospital of Traditional Chinese Medicine, China
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Dai YL, Zhou J, Lin J, Hu JT, Zhao X. [Recurrent Takotsubo syndrome associated with pheochromocytoma: a case report]. Zhonghua Nei Ke Za Zhi 2020; 59:464-467. [PMID: 32486588 DOI: 10.3760/cma.j.cn112138-20190919-00639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y L Dai
- Department of Cardiology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - J Zhou
- Department of Cardiology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - J Lin
- Department of Cardiology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - J T Hu
- Department of Cardiology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - X Zhao
- Department of Cardiology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
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Yan P, Zhang L, Li FY, Yang Y, Wang YN, Huang AM, Dai YL, Yao H. [Evaluation of ergonomic load of clinical nursing procedures]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:581-584. [PMID: 29081125 DOI: 10.3760/cma.j.issn.1001-9391.2017.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the ergonomic load of clinical nursing procedures and to provide evidence for the prevention and management of work-related musculoskeletal disorders (WMSDs) in nurses. Methods: Based on the nursing unit characteristics and the common departments involving patient-turning procedures, 552 nurses were selected from 6 clinical departments from July to September, 2016. The ergonomic load of four types of patient-turning procedures, i.e., turning the patient's body, changing the bed linen of in-bed patients, moving patients, and chest physiotherapy, was evaluated by the on-site inspectors and self-evaluated by the operators using the Quick Exposure Check. The exposure value, exposure level, and exposure rate of WMSDs were assessed based on the procedure-related physical loads on the back, shoulders/arms, wrists/hands and neck, as well as the loads from work rhythm and work pressure. Results: All surveyed subjects were females who were aged mostly between 26-30 years (49.46%) , with a mean age of 29.66±5.28 years. These nurses were mainly from the Department of Infection (28.99%) and Spine Surgery (21.56%) . There were significant differences in the back, shoulders/arms, neck, work rhythm, and work pressure scores between different nursing procedures (F=16.613, 5.884, 3.431, 3.222, and 5.085, respectively; P<0.05) . Patient-turning nursing procedures resulted in high to intermediate physical load in nurses. Procedures with high to low level of WMSDs exposure were patient turning (72.69%) , bed linen changing (67.15%) , patient transfer (65.82%) , and chest physiotherapy (58.34%) . In particular, patient turning was considered as very high-risk procedure, whereas others were considered as high-risk procedures. Conclusion: Patient-turning nursing procedures result in high ergonomic load in the operators. Therefore, more focus should be placed on the ergonomics of the caretakers and nurses.
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Affiliation(s)
- P Yan
- The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
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Liu Q, Gao LL, Dai YL, Li YX, Wang Y, Bai CF, Mu GX, Chai XM, Han WJ, Zhou LJ, Zhang YJ, Tang L, Liu J, Yu JQ. Nitrous oxide/oxygen mixture for analgesia in adult cancer patients with breakthrough pain: A randomized, double-blind controlled trial. Eur J Pain 2017; 22:492-500. [PMID: 29226545 DOI: 10.1002/ejp.1144] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND The aim of this study was to assess the efficacy of a fixed nitrous oxide/oxygen mixture for the management of breakthrough cancer pain. METHODS/DESIGN A double-blind, placebo-controlled, randomized clinical trial was undertaken in the Medical ward of Tumor Hospital of General Hospital of Ningxia Medical University. 240 cancer patients with breakthrough pain were recruited and randomly received a standard pain treatment (morphine sulphate immediate release) plus a pre-prepared nitrous oxide/oxygen mixture, or the standard pain treatment plus oxygen. The primary endpoint measure was the numerical rating scale (NRS) score measured at baseline, 5 and 15 min after the beginning of treatment, and at 5 min post treatment. RESULT In all, analysis of pain score (NRS) at 5 min after the beginning of treatment shown a significant decrease in nitrous oxide/oxygen mixture treated patients with 2.8 ± 1.3 versus 5.5 ± 1.2 in controls (p < 0.01). At 15 min during the intervention, the mean pain score for nitrous oxide/oxygen was 2.0 ± 1.1 compared with 5.6 ± 1.3 for oxygen (p < 0.01). CONCLUSION This study shows that self-administered nitrous oxide/oxygen mixture was effective in reducing moderate to severe breakthrough pain among patients with cancer. SIGNIFICANCE The management of breakthrough cancer pain is always a challenge due to its temporal characteristics of rapid onset, moderate to severe in intensity, short duration (median 30-60 min). Our study find that self-administered nitrous oxide/oxygen mixture was effective in reducing moderate to severe breakthrough cancer pain.
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Affiliation(s)
- Q Liu
- School of Nursing, Ningxia Medical University, Yinchuan, China.,School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - L-L Gao
- School of Nursing, Ningxia Medical University, Yinchuan, China
| | - Y-L Dai
- School of Nursing, Ningxia Medical University, Yinchuan, China
| | - Y-X Li
- School of Nursing, Ningxia Medical University, Yinchuan, China
| | - Y Wang
- School of Nursing, Ningxia Medical University, Yinchuan, China
| | - C-F Bai
- School of Nursing, Ningxia Medical University, Yinchuan, China
| | - G-X Mu
- School of Nursing, Ningxia Medical University, Yinchuan, China
| | - X-M Chai
- School of Nursing, Ningxia Medical University, Yinchuan, China
| | - W-J Han
- Department of Nursing, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - L-J Zhou
- Institute of Translational Medicine, Second Military Medical University, Shanghai, China
| | - Y-J Zhang
- Department of Medical Oncology, General Hospital of Ningxia Medical University, Yinchuan, China
| | - L Tang
- Department of Anesthesiology, General Hospital of Jinan Military Command, Jinan, China
| | - J Liu
- School of Nursing, Ningxia Medical University, Yinchuan, China.,School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - J-Q Yu
- Department of Pharmacology, Pharmaceutical Institute of Ningxia Medical University, Yinchuan, China
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Xiang Y, Li YF, Bao F, Dai YL, Wang Z, Zhang ZH. [Pituicytoma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2017; 46:648-649. [PMID: 28910880 DOI: 10.3760/cma.j.issn.0529-5807.2017.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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Dai YL, Gulibiya L, Renaguli A. [A case of fibrocalculous pancreatic diabetes]. Zhonghua Nei Ke Za Zhi 2016; 55:550-551. [PMID: 27373294 DOI: 10.3760/cma.j.issn.0578-1426.2016.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Li YJ, Dai YL, Cheng YS, Zhang WB, Tu CQ. Positron emission tomography (18)F-fluorodeoxyglucose uptake and prognosis in patients with bone and soft tissue sarcoma: A meta-analysis. Eur J Surg Oncol 2016; 42:1103-14. [PMID: 27189833 DOI: 10.1016/j.ejso.2016.04.056] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 04/04/2016] [Accepted: 04/08/2016] [Indexed: 02/05/2023]
Abstract
PURPOSE To investigate the prognostic significance of (18)F-FDG PET imaging in patients with bone and soft tissue sarcoma, a meta-analysis was conducted. METHODS Comprehensive literature searches were performed in PubMed, Embase, Web of Science and Cochrane Library. Pooled hazard ratio (HR) values were calculated to assess the correlations of pre-chemotherapy SUV (SUV1), post-chemotherapy SUV (SUV2), SUV Ratio, total lesion glycolysis (TLG) and metabolic tumor volume (MTV) with event-free survival (EFS) and overall survival (OS). RESULTS Twenty-three studies with 1261 patients were identified. The combined HRs for EFS were 1.84 (95% CI: 1.54-2.20) for SUV1, 2.92 (95% CI: 2.15-3.97) for SUV2, 1.90 (95% CI: 1.43-2.52) for SUV Ratio, 3.01 (95% CI: 1.36-6.67) for TLG and 2.32 (95% CI: 1.44-3.75) for MTV. The pooled HRs for OS were 1.85 (95% CI: 1.49-2.30) for SUV1, 2.00 (95% CI: 1.39-2.88) for SUV2, 2.20 (95% CI: 1.18-4.10) for SUV Ratio, 6.19 (95% CI: 2.17-17.66) for TLG and 2.67 (95% CI: 1.52-4.68) for MTV. Besides, high SUV1 was found to be significantly associated with higher rate of metastasis (RR 5.55, 95% CI: 2.75-11.18) and local recurrence (RR 1.87 95% CI: 1.28-2.72). CONCLUSION (18)F-FDG PET parameters of SUV1, SUV2, SUV Ratio, TLG and MTV may have effective prognostic significance for patients with bone and soft tissue sarcoma. (18)F-FDG PET imaging may be a promising tool to help predict survival outcomes of these patients.
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Affiliation(s)
- Y-J Li
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, PR China; Department of Cancer Center, West China Hospital, Sichuan University, Chengdu, PR China.
| | - Y-L Dai
- College of Computer Science, Sichuan Normal University, Chengdu, PR China
| | - Y-S Cheng
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, PR China
| | - W-B Zhang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, PR China
| | - C-Q Tu
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, PR China.
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Wang K, Dai YL, Cheung TCY, Dai DLK. Neuroscintigraphy of Non-Alzheimer’s Disease Dementias. Hong Kong J Radiol 2015. [DOI: 10.12809/hkjr1414268] [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: 11/05/2022] Open
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Dai YL, Wang K, Cheung TCY, Dai DLK. Neuroradiology of Non-Alzheimer’s Disease Dementias. Hong Kong J Radiol 2015. [DOI: 10.12809/hkjr1414267] [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: 11/05/2022] Open
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Dai DLK, Wong GHY, Dai YL, Wang K. Clinical Diagnosis of Dementia: Core Clinical Features and Diagnostic Criteria. Hong Kong J Radiol 2015. [DOI: 10.12809/hkjr1414277] [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: 11/05/2022] Open
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Guo M, Pan YM, Dai YL, Gao ZM. First Report of Brown Blight Disease Caused by Colletotrichum gloeosporioides on Camellia sinensis in Anhui Province, China. Plant Dis 2014; 98:284. [PMID: 30708777 DOI: 10.1094/pdis-08-13-0896-pdn] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Yellow Mountain fuzz tip, a cultivar of Camellia sinensis (L.) Kuntze, is commonly grown in the Yellow Mountain region in Anhui Province of China. During 2011 to 2012, leaf and twig blight on tea plants occurred from July to September in growing regions. Symptoms of blight on leaves of infected plants were detected in 30 to 60% of the fields visited and up to 500 ha were affected each year. Symptoms began as small, water-soaked lesions on young leaves and twigs and later became larger, dark brown, necrotic lesions, 1 to 3 mm in diameter on leaves and 2 to 5 mm long on twigs. To determine the causal agent, symptomatic leaf tissue was collected from plants in Gantang and Tangkou townships in September 2012. Small pieces of diseased tea leaves and twigs were surface-disinfested in 2% NaClO for 3 min, rinsed twice in distilled water, plated on potato dextrose agar, and incubated at 28°C for 5 days. Eleven isolates were recovered and all cultures produced white-to-gray fluffy aerial hyphae and were dark on the reverse of the plate. The hyphae were hyaline, branching, and septate. Setae were 2- to 3-septate, dark brown, acicular, and 78.0 to 115.0 μm. Conidiogenous cells were hyaline, short, branchless, cylindrical, and 11.3 to 21.5 × 4.2 to 5.3 μm. Conidia were hyaline, aseptate, guttulate, cylindrical, and 12.5 to 17.3 × 3.9 to 5.8 μm. Appresoria were ovate to obovate, dark brown, and 8.4 to 15.2 × 7.8 to 12.9 μm. DNA was amplified using the rDNA-ITS primer pair ITS4/ITS5 (3), glyceraldehyde-3-phosphate dehydrogenase gene (GAPDH) primer pair GDF/GDR (2) and beta-tubulin 2 gene (Tub2) primer pair Btub2Fd/Btub4Rd (4). Sequences (GenBank Accession Nos. KC913203, KC913204, and KC913205) of the 11 isolates were identical and revealed 100% similarity to the ITS sequence of strain P042 of Colletotrichum gloeosporioides (EF423527), 100% identity to the GAPDH of isolate C07009 of C. gloeosporioides (GU935860), and 99% similarity to Tub2 of isolate 85 of C. gloeosporioides (AJ409292), respectively. Based on the above data, the 11 isolates were identified as C. gloeosporioides (Penz.) Penz. & Sacc. To confirm pathogenicity, Koch's postulate was performed and 4 ml of conidial suspension (1 × 105 conidia/ml) of each of the 11 isolates was sprayed on five leaves and five twigs per plant on four 12-month-old Yellow Mountain fuzz tip plants. Control plants were sprayed with distilled water. The inoculated plants were maintained at 28°C in a greenhouse with constant relative humidity of 90% and a 12-h photoperiod of fluorescent light. Brown necrotic lesions appeared on leaves and twigs after 7 days, while the control plants remained healthy. The experiments were conducted three times and the fungus was recovered and identified as C. gloeosporioides by both morphology and molecular characteristics. Tea plant blight caused by C. gloeosporioides was identified in Brazil (1), but to our knowledge, this is the first report of C. gloeosporioides causing tea leaf and twig blight on Yellow Mountain fuzz tip plants in Anhui Province of China. References: (1) M. A. S. Mendes et al. Page 555 in: Embrapa-SPI/Embrapa-Cenargen, Brasilia, 1998. (2) M. D. Templeton et al. Gene 122:225, 1992. (3) T. J. White et al. Page 315 in: PCR Protocols: A Guide to Methods and Applications. Academic Press, San Diego, 1990. (4) J. H. C. Woudenberg et al. Persoonia 22:56, 2009.
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Affiliation(s)
- M Guo
- Department of Plant Pathology, College of Plant Protection, Anhui Agricultural University, 130 West of Changjiang Road, Hefei, 230036, China
| | - Y M Pan
- Department of Plant Pathology, College of Plant Protection, Anhui Agricultural University, 130 West of Changjiang Road, Hefei, 230036, China
| | - Y L Dai
- Department of Plant Pathology, College of Plant Protection, Anhui Agricultural University, 130 West of Changjiang Road, Hefei, 230036, China
| | - Z M Gao
- Department of Plant Pathology, College of Plant Protection, Anhui Agricultural University, 130 West of Changjiang Road, Hefei, 230036, China
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Guo M, Pan YM, Dai YL, Gao ZM. First Report of Leaf Spot Caused by Colletotrichum spaethianum on Peucedanum praeruptorum in China. Plant Dis 2013; 97:1380. [PMID: 30722170 DOI: 10.1094/pdis-03-13-0246-pdn] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Peucedanum praeruptorum Dunn, a traditional Chinese medicinal herb, is an important crop in Ningguo, China. Since 2010, leaf spot symptoms were observed yearly starting in June. Blighted leaf areas on individual plants ranged from 10 to 25% in many fields, and up to 200 ha were affected each year. Symptoms consisted of small, brown, necrotic spots uniformly distributed on the 1- to 2-week-old leaves. Small tissue pieces from the edges of lesions were disinfected in 2% NaClO for 3 min, rinsed twice in distilled water, plated on potato dextrose agar (PDA), and incubated at 25°C in darkness for 4 days. Single spore isolations were obtained for six strains. When inoculated on SNA media, the six strains produced typical septate mycelium, with the young hyphae hyaline and aged ones white greyish. Setae of the strains on SNA were brown, tip acute, 2- to 3-septate, and 32.5 to 85.6 μm long. Conidiogenous cells were hyaline, cylindrical, 2- to 3-septate, 6.2 to 16.5 μm in length, and 2.8 to 4.3 μm in width. The mature conidia were slightly curved, with round apex and truncate base, 1 to 5 oil globules, and were 13.3 to 23.8 μm in length and 3.0 to 3.9 μm in width, respectively. Appressoria were solitary or in loose groups, dark brown, irregular shapes, and were 6.8 to 9.2 μm in length and 4.3 to 7.1 μm in width. PCR amplification was carried out by utilizing the universal rDNA-ITS primer pair ITS4/ITS5 (1) and the actin gene primer pair ACT-512F and ACT-783R (2). The PCR products of ITS (GenBank Accession No. KC913201) and actin gene (KC913202) from six isolates were identical, respectively, and shared 100% identity to the ITS sequence of strain CBS 167.49 of Colletotrichum spaethianum (GU227807.1) and 99% similarity to the actin gene of strain CBS 167.49 of C. spaethianum (GU227905.1), which was isolated from Hosta sieboldiana in Germany (3). Based on the above, the isolates were identified as C. spaethianum. To confirm pathogenicity, conidial suspensions (105 conidia ml-1) of each of the six isolates were sprayed on four leaves per plant on five 6-month-old P. praeruptorum plants. Control plants were sprayed with water. Plants were maintained at 28°C in a greenhouse with constant humidity (RH 90%) and a 12-h photoperiod of fluorescent light. Symptoms similar to the original ones started to appear after 10 days, while the control plants remained healthy. The tests were repeated three times and the fungus was recovered and identified as C. spaethianum by both morphology and molecular characterization. To our knowledge, this is the first report of C. spaethianum causing leaf spot on P. praeruptorum in China. Since the C. spaethianum infections pose a serious threat to P. praeruptorum production, this disease needs to be considered for developing effective control strategies. References: (1) I. Carbone and L. M. Kohn. Mycologia 91:553, 1999. (2) U. Damm et al. Fung. Divers. 39:45, 2009. (3) T. J. White et al. Page 315 in: PCR Protocols: A Guide to Methods and Applications. Academic Press, San Diego, 1990.
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Affiliation(s)
- M Guo
- Department of Plant Pathology, College of Plant Protection, Anhui Agricultural University, 130 West of Changjiang Road, Hefei, 230036, P. R. China
| | - Y M Pan
- Department of Plant Pathology, College of Plant Protection, Anhui Agricultural University, 130 West of Changjiang Road, Hefei, 230036, P. R. China
| | - Y L Dai
- Department of Plant Pathology, College of Plant Protection, Anhui Agricultural University, 130 West of Changjiang Road, Hefei, 230036, P. R. China
| | - Z M Gao
- Department of Plant Pathology, College of Plant Protection, Anhui Agricultural University, 130 West of Changjiang Road, Hefei, 230036, P. R. China
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Li P, Cao S, Dai YL, Li XL, Xu DF, Guo M, Pan YM, Gao ZM. Genetic diversity of Phytophthora capsici (Pythiaceae) isolates in Anhui Province of China based on ISSR-PCR markers. Genet Mol Res 2012; 11:4285-96. [PMID: 23315808 DOI: 10.4238/2012.december.17.4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Phytophthora capsici is a plant pathogenic oomycete that damages numerous crops worldwide. Consequently, interest in research on the genetic structure of this species has grown in recent decades. However, there is little information about P. capsici in eastern China. We investigated the genetic diversity of P. capsici isolates from three large regions of Anhui Province in eastern China based on ISSR-PCR technology. Thirteen random primers were screened and used to amplify DNA from 51 samples. We obtained 158 reproducible ISSR fragments, of which 90% were polymorphic, revealing a high degree of polymorphism among the isolates. Genetic similarity coefficients among all the isolates ranged from 0.56 to 0.94, with a mean of 0.84 based on the ISSR data, indicating a high level of genetic variation in these P. capsici isolates. Cluster analysis using UPGMA indicated that the Anhui isolates were divided into seven groups according to the DNA fingerprints, although there was no correlation between the ISSR group and geographic origin. Isolates from the same location showed no clustering based on the year of sampling. AMOVA partitioned variability among (13.6%) and within populations (86.4%). The gene flow among populations ranged from 2.804 to 4.937, with a mean of 3.545, indicating highly frequent gene exchange. Genetic distances and genetic differentiation were negatively correlated with geographic distances. These results lead us to suggest that this pathogen has considerable evolutionary potential, which will enable it to adapt to and overcome management strategies over time.
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Affiliation(s)
- P Li
- School of Plant Protection, Anhui Agricultural University, Hefei, China
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Huang SL, Yu RT, Gong J, Feng Y, Dai YL, Hu F, Hu YH, Tao YD, Leng Y. Arctigenin, a natural compound, activates AMP-activated protein kinase via inhibition of mitochondria complex I and ameliorates metabolic disorders in ob/ob mice. Diabetologia 2012; 55:1469-81. [PMID: 22095235 DOI: 10.1007/s00125-011-2366-3] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Accepted: 10/06/2011] [Indexed: 12/24/2022]
Abstract
AIMS/HYPOTHESIS Arctigenin is a natural compound that had never been previously demonstrated to have a glucose-lowering effect. Here it was found to activate AMP-activated protein kinase (AMPK), and the mechanism by which this occurred, as well as the effects on glucose and lipid metabolism were investigated. METHODS 2-Deoxyglucose uptake and AMPK phosphorylation were examined in L6 myotubes and isolated skeletal muscle. Gluconeogenesis and lipid synthesis were evaluated in rat primary hepatocytes. The acute and chronic effects of arctigenin on metabolic abnormalities were observed in C57BL/6J and ob/ob mice. Changes in mitochondrial membrane potential were measured using the J-aggregate-forming dye, JC-1. Analysis of respiration of L6 myotubes or isolated mitochondria was conducted in a channel oxygen system. RESULTS Arctigenin increased AMPK phosphorylation and stimulated glucose uptake in L6 myotubes and isolated skeletal muscles. In primary hepatocytes, it decreased gluconeogenesis and lipid synthesis. The enhancement of glucose uptake and suppression of hepatic gluconeogenesis and lipid synthesis by arctigenin were prevented by blockade of AMPK activation. The respiration of L6 myotubes or isolated mitochondria was inhibited by arctigenin with a specific effect on respiratory complex I. A single oral dose of arctigenin reduced gluconeogenesis in C57BL/6J mice. Chronic oral administration of arctigenin lowered blood glucose and improved lipid metabolism in ob/ob mice. CONCLUSIONS/INTERPRETATION This study demonstrates a new role for arctigenin as a potent indirect activator of AMPK via inhibition of respiratory complex I, with beneficial effects on metabolic disorders in ob/ob mice. This highlights the potential value of arctigenin as a possible treatment of type 2 diabetes.
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Affiliation(s)
- S-L Huang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zu Chong Zhi Road 555, Shanghai 201203, People's Republic of China
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Zhu Z, Atkinson TP, Hovanky KT, Boppana SB, Dai YL, Densen P, Go RC, Jablecki JS, Volanakis JE. High prevalence of complement component C6 deficiency among African-Americans in the south-eastern USA. Clin Exp Immunol 2000; 119:305-10. [PMID: 10632667 PMCID: PMC1905506 DOI: 10.1046/j.1365-2249.2000.01113.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Complement component C6 is a part of the membrane attack complex that forms a pore-like structure in cell membranes following complement activation. Deficiency of terminal complement components including C6 predisposes individuals to infection with Neisseriae. Using polymerase chain reaction/single-strand conformation polymorphism analysis followed by DNA sequencing, we screened genomic DNA from 200 randomly chosen blacks and an equal number from whites for three loss-of-function C6 mutations. Ten blacks and two whites were found to be heterozygous for one of the mutations. Two of the mutations, 1195delC and 1936delG, were found exclusively in black individuals. A third previously undescribed mutation, 878delA, was found at equal frequency among the two groups. The difference between the two groups was significant (P = 0.027), indicating that C6 deficiency due to these three mutations is more common among blacks than whites in the local area, principally Jefferson County, Alabama. In addition, three previously undescribed point mutations, two of which result in amino acid substitutions, were identified within exon 6. A review of the county health department records over the past 6 years revealed a higher incidence of meningococcal meningitis in blacks due to serogroups Y and W-135 which paralleled the difference in the estimated prevalence of C6 deficiency. Among black residents of the county (n = 235 598) there were 15 cases of meningitis due to these two serogroups, compared with two cases in the white population (n = 422 604) (P = 0.002). We conclude that C6 deficiency is more common among blacks than whites in the south-eastern United States, with a frequency approaching 1 in 1600 black individuals.
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Affiliation(s)
- Z Zhu
- Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35294-3300, USA
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Yan CD, Gu L, Tian SP, Chen QS, Dai YL, Li DS. [Effects of gastric mucosal blood flow (GMBF) on the role of adaptive cytoprotection of rat gastric mucosa]. Sheng Li Xue Bao 1996; 48:469-76. [PMID: 9387779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
By the use of hydrogen gas clearance technique, we have investigated the role of GMBF in the adaptive cytoprotection induced by intragastric perfusion with low concentration prior to high concentration of HCl plus ethanol. The results were as follows: (1) intragastric perfusion with low concentration prior to high concentration of HCl plus ethanol led to an adaptive cytoprotection, i.e., the gross and the deep damage were decreased by 47.09% and 44.57% respectively, as compared with those caused by high concentration of HCl plus ethanol alone; correspondingly, GMBF also showed an adaptive hyperemic response, i.e., GMBF was increased by 28.02% as compared with that due to high concentration alone; (2) close arterial infusion of vasopressin blocked the adaptive hyperemic response and abolished the adaptive cytoprotection; (3) intravenous indomethacin reduced the basal GMBF, and abolished both the adaptive hyperemic response and cytoprotection; furthermore, the gross and deep damage were aggravated compared with that caused by high concentration alone. The results showed that the adaptive hyperemic response of gastric mucosa was involved in the adaptive cytoprotection and suggested that the adaptive cytoprotection of endogenous prostaglandin might be partially related to the increase of GMBF.
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Affiliation(s)
- C D Yan
- Department of Physiology, Nanjing Medical University
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21
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Xiao Q, Chen QS, Yan ZH, Yang R, Dai YL. [Effects of beta-endorphin on blood pressure and heart rate in rats]. Sheng Li Xue Bao 1994; 46:72-7. [PMID: 8085171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The present work was undertake to investigate the mechanism of changes of blood pressure and heart rate induced by beta-endorphin (beta-End) after microinjection into the Nucleus Amygdaloideus Centralis (AC) of anaesthetized rats. The results were as follows: (1) beta-End (100, 250 pg/microliters) injected into AC decreased both blood pressure and heart rate. (2) Both these effects could be antagonized by naloxone and beta-End anti-serum. (3) The effects of beta-End could also be reversed by phentolamine and propranolol. The results showed that the cardiovascular effects on beta-End were mediated by opioid receptors and through the intervention of adrenergic neurons.
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Affiliation(s)
- Q Xiao
- Department of Physiology, Naijong Medical College
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22
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Dai YL. [Treponemal pallidum specific 19S-IgM haemagglutination test and its clinical significance]. Zhonghua Yi Xue Za Zhi 1992; 72:616-8, 640. [PMID: 1338509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
74 samples of 53 cases were detected with 19 S-IgM-TPHA. The sensitivity was 97.37% and the specificity was more than 99%. 19S-IgM-TPHA was not interfered by rheumatoid factor. It was used to define congenital syphilis, to determine the necessity of treatment and reinfection, to diagnose syphilis without lesion and detailed case history as well as neurosyphilis. The results of 19S-IgM-TPHA were not consistent with those of routine screen and definite tests (Kappa < 0.4), so it can not be replaced by other methods.
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Affiliation(s)
- Y L Dai
- Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing
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23
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Xiao QA, Li DS, Dai YL, Ge ZH. [Effects of substance P on the contractile response of longitudinal muscle of rat ileum to 5-HT]. Sheng Li Xue Bao 1989; 41:313-7. [PMID: 2476852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The purpose of this study was to observe the effects of substance P (SP) on the contractile response of longitudinal muscle with myenteric plexus (LM-MP) of rat ileum induced by 5-HT in vitro and to analyse its mechanism. The results were as follows: (1) Subthreshold dose of SP (5 nmol/L) potentiated the 5-HT-induced contractile response; (2) Both [D-Pro2 D-Trp7,9]-SP and atropine inhibited or blocked this potentiated effect suggesting that the effect was mediated by SP receptors; (3) This effect was not blocked by bromolysergic acid diethylamide (BOL). The results suggest that SP of subthreshold dose might modulate the effect of 5-HT, and a cholinergic mechanism might be involved in the modulation.
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Ling WH, Dai YL, Li DS, Ge ZH. [Effect of lateral hypothalamus injection of TRH on gastric acid secretion in rats]. Sheng Li Xue Bao 1987; 39:358-64. [PMID: 3120319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Li DS, Dai YL, Chen QS, Xiao Q, Zhu QD. Protective effects of pentagastrin against stress-induced gastric lesions in rats. Chin Med J (Engl) 1986; 99:457-60. [PMID: 3100184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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26
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Dai YL, Wang HH, Xu WY, Jin WQ. [Detection of the anti-deoxyribonucleoprotein antibody with the latex test]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1985; 7:388-92. [PMID: 2938763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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27
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Dai YL. [Indirect immunofluorescence detection of anti-dsDNA antibody with mouse liver imprint treated by acetone and hydrochloric acid]. Zhonghua Yi Xue Za Zhi 1984; 64:203-5. [PMID: 6205733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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