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Li LX, Liu Y, Huang JH, Yang Y, Pan YG, Zhang XL, Pan LZ, Jin LJ. Genetic spectrum and clinical features in a cohort of Chinese patients with isolated dystonia. Clin Genet 2023; 103:459-465. [PMID: 36648081 DOI: 10.1111/cge.14298] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 01/03/2023] [Accepted: 01/10/2023] [Indexed: 01/18/2023]
Abstract
Dystonia is a genetically and phenotypically heterogeneous disorder that occurs in isolation (isolated dystonia) or in combination with other movement disorders. To determine the genetic spectrum in isolated dystonia, we enrolled 88 patients with isolated dystonia for whole-exome sequencing (WES). Seventeen mutations, including nine novel ones, were identified in 19 of the 88 patients, providing a 21.59% positive molecular diagnostic rate. Eleven distinct genes were involved, of which TOR1A and THAP1 accounted for 47.37% (9/19) of the positive cases. A novel missense variant, p.S225R in TOR1A, was found in a patient with adolescence-onset generalized dystonia. Cellular experiments revealed that p.S255R results in the abnormal aggregation of Torsin-1A encoding by TOR1A. In addition, we reviewed the clinical and genetic features of the isolated dystonia patients carrying TOR1A, THAP1, ANO3, and GNAL mutations in the Chinese population. Our results expand the genetic spectrum and clinical profiles of patients with isolated dystonia and demonstrate WES as an effective strategy for the molecular diagnosis of isolated dystonia.
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Affiliation(s)
- Li-Xi Li
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ying Liu
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jie-Hong Huang
- Department of Neurology and Neurological Rehabilitation, Shanghai Yangzhi Rehabilitation Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yi Yang
- Department of Neurology and Neurological Rehabilitation, Shanghai Yangzhi Rehabilitation Hospital, School of Medicine, Tongji University, Shanghai, China
| | - You-Gui Pan
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiao-Long Zhang
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Li-Zhen Pan
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ling-Jing Jin
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
- Department of Neurology and Neurological Rehabilitation, Shanghai Yangzhi Rehabilitation Hospital, School of Medicine, Tongji University, Shanghai, China
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2
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Zhou L, Pan LZ, Fan YJ. DNMT3b affects colorectal cancer development by regulating FLI1 through DNA hypermethylation. Kaohsiung J Med Sci 2023; 39:364-376. [PMID: 36655868 DOI: 10.1002/kjm2.12647] [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: 07/11/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 01/20/2023] Open
Abstract
Friend leukemia integration 1 (FLI1) is an ETS transcription factor family member. Here, we identified cg11017065 as the most hyper-methylated cytosine and guanine (CpG) in colorectal cancer (CRC), which belongs to the FLI1 gene. Moreover, integrated bioinformatics prediction and analysis of our cohort showed that FLI1 expression was downregulated and DNA methylation was elevated in CRC. Bioinformatics prediction also indicated that patients overexpressing FLI1 had higher survival rates than those with low FLI1 expression. CRC cells with ectopic expression of FLI1 had reduced invasion, migration, cloning ability and increased apoptosis. Furthermore, DNA-methyltransferase 3b (DNMT3b) was found to be significantly overexpressed in CRC, and low DNMT3b expression predicted a prolonged survival. DNMT3b bound to the FLI1 promoter. Inhibition of DNMT3b increased FLI1 expression and inhibited the malignant phenotype of CRC cells. Inhibition of FLI1 reversed the phenotypic modulation by DNMT3b depletion in vitro and in vivo. In conclusion, our data indicate that DNMT3b potentiates CRC cell proliferation, migration, and invasion through downregulating FLI1.
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Affiliation(s)
- Lei Zhou
- Department of Gastroenterology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou, Jiangsu, People's Republic of China
| | - Li-Zhen Pan
- Department of Gastroenterology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou, Jiangsu, People's Republic of China
| | - Yue-Juan Fan
- Department of Gastroenterology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou, Jiangsu, People's Republic of China
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3
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Liu WC, Su JH, Feng Y, Xiang XR, Pan LZ, Liu Y, Ma L, Nie ZY, Zhang XP, Jin LJ. Dynamic muscle paralytic effects of a novel botulinum toxin A free of neurotoxin-associated proteins. Pharmacol Res Perspect 2022; 10:e00955. [PMID: 35484714 PMCID: PMC9051373 DOI: 10.1002/prp2.955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/09/2022] [Accepted: 04/09/2022] [Indexed: 11/17/2022] Open
Abstract
Structurally, botulinum toxin type A (BTX‐A) is composed of neurotoxin and nontoxic complexing proteins (CPs), and the neurotoxin has the function of blocking acetylcholine release from the neuromuscular junction and therefore paralyzing muscles. Nowadays, a novel botulinum toxin A free of CPs (chinbotulinumtoxin A, A/Chin) is produced, and the present study comprehensively evaluated the dynamic paralytic effect of A/Chin on the gastrocnemius muscle of rats. Different doses (0.01, 0.1, 0.5, 1, 2, and 4 U) of A/Chin and other BTX‐As with and without CPs were administered to the gastrocnemius muscles of rats and muscle strength was measured and compared at different postinjection timepoints (from day 0 to 84). With the dose increased, time‐to‐peak paralytic effect of other BTX‐As varied from day 3 to day 14, while A/Chin groups showed rapid and steady time to peak on day 3. At the lowest dose of 0.01 U, A/Chin showed significantly better peak paralytic effect than the others on day 3. When the dose increased to 0.5 U and more, A/Chin group also showed significant paralytic effect when the paralytic effect of other BTX‐As was worn off. Moreover, the paralytic effect of A/Chin was confirmed as muscle atrophy while hematoxylin–eosin staining was performed. In conclusion, compared with other BTX‐As, A/Chin showed rapid and steady time‐to‐peak paralytic effect and long‐term paralytic efficacy at the same dose level. And it might lay a solid foundation for further wide application of A/Chin in both clinical and cosmetic areas.
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Affiliation(s)
- Wu-Chao Liu
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai, China
| | - Jun-Hui Su
- Department of Neurology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China.,Neurotoxin Research Center, School of Medicine, Tongji University, Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Ministry of Education of the People's Republic of China, Shanghai, China
| | - Ya Feng
- Department of Neurology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xue-Rui Xiang
- Department of Neurology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China.,Neurotoxin Research Center, School of Medicine, Tongji University, Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Ministry of Education of the People's Republic of China, Shanghai, China
| | - Li-Zhen Pan
- Department of Neurology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ying Liu
- Department of Neurology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Lin Ma
- Department of Neurology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Zhi-Yu Nie
- Department of Neurology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xue-Ping Zhang
- Department of Toxin Preparation, Lanzhou Institute of Biological Products Co., Ltd., Center for Gansu Provincial Vaccine Engineering Research, Lanzhou, Gansu Province, China
| | - Ling-Jing Jin
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai, China.,Neurotoxin Research Center, School of Medicine, Tongji University, Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Ministry of Education of the People's Republic of China, Shanghai, China
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4
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Li LX, Huang JH, Pan LZ, Zhang XL, Pan YG, Jin LJ. Whole-Exome Sequencing Identified Rare Variants in PCDHGB1 in Patients with Adult-Onset Dystonia. Mov Disord 2022; 37:1099-1101. [PMID: 35229923 DOI: 10.1002/mds.28965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 01/28/2022] [Accepted: 02/07/2022] [Indexed: 11/05/2022] Open
Affiliation(s)
- Li-Xi Li
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jie-Hong Huang
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Li-Zhen Pan
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiao-Long Zhang
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - You-Gui Pan
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ling-Jing Jin
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China.,Department of Neurology and Neurological Rehabilitation, Shanghai Yangzhi Rehabilitation Hospital, School of Medicine, Tongji University, Shanghai, China.,Shanghai Clinical Research Center for Aging and Medicine, Shanghai, China
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Li LX, Jiang LT, Pan YG, Zhang XL, Pan LZ, Nie ZY, Chen YH, Jin LJ. Clinical and Molecular Features of POLG-Related Sensory Ataxic Neuropathy with Dysarthria and Ophthalmoparesis. J Mol Neurosci 2021; 71:2462-2467. [PMID: 33791913 DOI: 10.1007/s12031-021-01831-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 03/15/2021] [Indexed: 10/21/2022]
Abstract
Sensory ataxic neuropathy, dysarthria, and ophthalmoparesis (SANDO) is a rare mitochondrial disorder associated with mutations in the POLG gene, which encodes the DNA polymerase gamma catalytic subunit. A few POLG-related SANDO cases have been reported, but the genotype-phenotype correlation remains unclear. Here, we report a patient with SANDO carrying two novel missense variants (c.2543G>C, p.G848A and c.452 T>C, p.L151P) in POLG. We also reviewed previously reported cases to systematically evaluate the clinical and genetic features of POLG-related SANDO. A total of 35 distinct variants in the coding region of POLG were identified in 63 patients with SANDO. The most frequent variant was the p.A467T variant, followed by the p.W748S variant. The clinical spectrum of SANDO is heterogeneous. No clear correlation has been observed between the mutation types and clinical phenotypes. Our findings expand the mutational spectrum of POLG and contribute to clinical management and genetic counseling for POLG-related SANDO.
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Affiliation(s)
- Li-Xi Li
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Neurological Department of Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Li-Ting Jiang
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Neurological Department of Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - You-Gui Pan
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Neurological Department of Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiao-Long Zhang
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Neurological Department of Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Li-Zhen Pan
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Neurological Department of Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhi-Yu Nie
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Neurological Department of Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yu-Hui Chen
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Neurological Department of Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ling-Jing Jin
- Neurotoxin Research Center of Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Neurological Department of Tongji Hospital, Tongji University School of Medicine, Shanghai, China.
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Chen Q, Qiu Y, Chen L, Lin J, Yan LJ, Bao XD, Lin LS, Pan LZ, Shi B, Zheng XY, Chen F, He BC, Wang J, Liu FQ. Association between serum arsenic and oral cancer risk: A case-control study in southeast China. Community Dent Oral Epidemiol 2021; 50:83-90. [PMID: 33748987 DOI: 10.1111/cdoe.12633] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 01/14/2023]
Abstract
OBJECTIVES Evidence on serum arsenic and oral cancer risk was limited. We aimed to evaluate the association between serum arsenic and the risk of oral cancer in a southeast China population. METHODS Serum arsenic was determined for 325 oral cancer patients and 648 controls using inductively coupled plasma-mass spectrometry (ICP-MS). Logistic regression and restricted cubic spline were analysed the association between serum arsenic level and oral cancer risk, and crude and adjusted odds ratios (aOR) with 95% confidence interval (95% CI) were calculated. Factors adjusted for included age, gender, BMI, smoking, drinking, education, residence, marital status and dietary factors. Stratification analysis was further performed according to drinking, smoking and dietary characteristics. RESULTS Serum arsenic level was lower in the case group (P50 = 19.2μg/L, IQR = 11.6 ~ 26.4μg/L) than in the control group (P50 = 30.2 μg/L, IQR = 25.0 ~ 36.4 μg/L). An inverse but nonlinear association was observed between arsenic level and oral cancer risk by restricted cubic spline. These with moderate serum arsenic levels had a lower risk of oral cancer than those with low levels (OR = 0.11; 95%CI: 0.07-0.18), after adjusting for demographic and dietary intake factors. We also kept serum arsenic as a continuous variable in a regression model, where a similar inverse association between arsenic and oral cancer was observed, with OR = 0.86 (95%CI: 0.84-0.88). Stratification analysis revealed no significant multiplicative interactions between serum arsenic and smoking, drinking or dietary intake. CONCLUSION Serum arsenic is inversely related to oral cancer risk. Relative to those with low levels of arsenic, people with moderate serum arsenic levels had a lower risk of oral cancer. If confirmed, serum arsenic level may be a useful predictive marker for oral cancer risk.
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Affiliation(s)
- Qing Chen
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Yu Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Lin Chen
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Jing Lin
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Ling-Jun Yan
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Xiao-Dan Bao
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Li-Song Lin
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Li-Zhen Pan
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Bin Shi
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xiao-Yan Zheng
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Fa Chen
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Bao-Chang He
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Jing Wang
- Laboratory Center, School of Public Health, Fujian Medical University, Fuzhou, China
| | - Feng-Qiong Liu
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
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Pan LZ, Wang Y, Chen X. A randomized controlled study on an integrated approach to prevent and treat re-adhesion after transcervical resection of moderate-to-severe intrauterine adhesions. Clinics (Sao Paulo) 2021; 76:e1987. [PMID: 33978070 PMCID: PMC8075111 DOI: 10.6061/clinics/2021/e1987] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 11/05/2020] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES This study aims to compare the clinical efficacy of an integrated approach to prevent and treat the recurrence of moderate-to-severe intrauterine adhesions (IUA) after hysteroscopic transcervical resection of adhesion (TCRA). METHODS The study included a total of 70 patients with moderate-to-severe IUAs who underwent TCRA. Patients were randomly divided into two groups: treatment group (n=35) and control group n=35). In the treatment group, patients underwent balloon uterine stent placement and artificial cycle as well as received intrauterine perfusion of Danshen injection and oral Chinese medicine. In the control group, patients underwent balloon uterine stent placement and artificial cycle as well as received hyaluronic acid sodium and intrauterine device (IUD). Follow-up was performed after treatment of uterine cavity, menstruation and pregnancy. RESULTS After 3 months of treatment, we observed a significantly lower rate of intrauterine re-adhesion (45.71% versus 77.14%, p=0.044) and significantly higher clinical efficiency (82.86% versus 77.14%, p=0.025) in the treatment group than those in the control group. After 6 months of treatment, we observed a significantly higher clinical efficiency in the treatment group than that in the control group (88.57% versus 68.57%, p=0.039). During the follow-up period, the pregnancy rate was 45.71% and 37.14% in the treatment group and control group, respectively, although the difference was not statistically significant (p=0.628). CONCLUSIONS After surgical management of IUA, the integrated treatment combining a uterus stent placement and artificial cycle with Danshen injection and oral Chinese medicine can improve the condition of menstruation, and prevent and treat recurrence of IUA.
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Affiliation(s)
- Li-Zhen Pan
- Department of Obstetrics and Gynecology, Nanping People's Hospital to Fujian University of Traditional Chinese Medicine, Nanping 353000, Fujian, China
- *Corresponding author. E-mail:
| | - Ying Wang
- Department of Obstetrics and Gynecology, Nanping People's Hospital to Fujian University of Traditional Chinese Medicine, Nanping 353000, Fujian, China
| | - Xian Chen
- Department of Obstetrics and Gynecology, Nanping People's Hospital to Fujian University of Traditional Chinese Medicine, Nanping 353000, Fujian, China
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Chen Q, Wang J, Wang J, Lin J, Chen L, Lin LS, Pan LZ, Shi B, Qiu Y, Zheng XY, Chen F, He BC, Liu FQ. Erythrocyte ω-3 polyunsaturated fatty acids are inversely associated with the risk of oral cancer: a case-control study. Nutr Diabetes 2020; 10:35. [PMID: 32989214 PMCID: PMC7522234 DOI: 10.1038/s41387-020-00140-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/23/2020] [Accepted: 09/16/2020] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Evidence about ω-3 polyunsaturated fatty acids (ω-3 PUFAs) and oral cancer risk were limited. We aimed to evaluate the association of erythrocyte ω-3 PUFAs with the risk of oral cancer in a population from China. METHODS Erythrocyte ω-3 PUFAs of 236 oral cancer patients and 300 controls were determined by gas chromatography. Restricted cubic spline and logistic regression were used to analyze the association between erythrocyte ω-3 PUFAs and oral cancer risk. The crude and adjusted OR with 95% CI was calculated. Stratification analysis was performed to explore the potential interaction between ω-3 PUFAs and other traditional risk factors such as smoking and drinking. RESULTS Eicosapentaenoic acids (EPA), docosahexaenoic acids (DHA) and ω-3 index were negatively but non-linearly related to risk of oral cancer as observed by restricted cubic spline. The adjusted OR of EPA, DHA, and ω-3 index were 0.52 (95% CI: 0.35-0.76), 0.19 (95% CI: 0.08-0.44), 0.20 (95% CI: 0.09-0.44), respectively. Stratification analysis showed that the adverse correlation between EPA and oral cancer was only significant in the non-smoking group, while the adverse correlation of ɑ-linolenic acid (ALA), EPA, and DHA were only significant in the non-drinking group. General multiplicative interactions were observed between ω-3 PUFAs and smoking or drinking. CONCLUSIONS Adverse but non-linear associations were observed between erythrocyte EPA, DHA, ω-3 index, and oral cancer risk. Additionally, there were multiplicative interactions between ω-3 PUFAs and other behavior factors such as smoking and drinking. The protective effect of ω-3 PUFAs maybe more significant in the non-smoking or non-drinking population.
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Affiliation(s)
- Qing Chen
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Jing Wang
- Laboratory Center, School of Public Health, Fujian Medical University, Fuzhou, China
| | - Jing Wang
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Jing Lin
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Lin Chen
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Li-Song Lin
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Li-Zhen Pan
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Bin Shi
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yu Qiu
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xiao-Yan Zheng
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Fa Chen
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Bao-Chang He
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Feng-Qiong Liu
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China. .,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.
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Su JH, Yang MN, Teng F, Zhang XL, Pan YG, Hu Y, Xiao LB, Pan LZ, Li LX, Jin LJ. Synkinesis in primary and postparalytic hemifacial spasm: Clinical features and therapeutic outcomes of botulinum toxin A treatment. Toxicon 2020; 184:122-126. [PMID: 32553733 DOI: 10.1016/j.toxicon.2020.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 06/04/2020] [Accepted: 06/07/2020] [Indexed: 11/18/2022]
Abstract
Facial synkinesis can be present in both primary and postparalytic hemifacial spasm (HFS). The present retrospective study aimed to summarize the clinical features of synkinesis and explore an appropriate botulinum toxin A (BoNT-A) injection strategy to manage the synkinesis accompanying HFS. Video recordings of 234 patients with primary and postparalytic HFSs were analyzed. Improvements in the severity of spasm and synkinesis owing to BoNT-A treatment were monitored and compared among 36 primary and 12 postparalytic HFS patients with synkinesis and completed follow-up records. BoNT-A was injected into the voluntary facial region (VFR), the synkinetic facial region (SFR), or both VFR and SFR, and the efficacy of these strategies was evaluated and analyzed. Oral-ocular synkinesis in the primary group (32.8%) and ocular-oral synkinesis in the postparalytic group (81.0%) showed the highest incidence. Patients in both the primary and postparalytic groups exhibited a tremendous alleviation of spasm (97.2% vs. 91.7%, P > 0.05) following BoNT-A treatment. In both groups, coinjection and SFR injection were commonly used and effective in treatment of ocular and oral synkinesis, while VFR was frequently used but ineffective for frontal synkinesis. In addition, the improper muscle selection surrounding the mouth corner resulted in pattern change and treatment failure of oral synkinesis. Synkinesis mostly affected the ocular and oral regions. BoNT-A, via treatment of SFR, is effective against synkinesis accompanying HFS.
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Affiliation(s)
- Jun-Hui Su
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, 389 Xincun Road, Shanghai, 200065, China; Neurotoxin Research Center, Tongji University School of Medicine, Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Ministry of Education of the People's Republic of China, 389 Xincun Road, Shanghai, 200065, China
| | - Ming-Na Yang
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, 389 Xincun Road, Shanghai, 200065, China; Department of Neurology, Shanghai Xuhui Dahua Hospital, 901 Laohumin Road, Shanghai, 200232, China
| | - Fei Teng
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, 389 Xincun Road, Shanghai, 200065, China
| | - Xiao-Long Zhang
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, 389 Xincun Road, Shanghai, 200065, China
| | - You-Gui Pan
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, 389 Xincun Road, Shanghai, 200065, China
| | - Yue Hu
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, 389 Xincun Road, Shanghai, 200065, China
| | - Li-Bin Xiao
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, 389 Xincun Road, Shanghai, 200065, China
| | - Li-Zhen Pan
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, 389 Xincun Road, Shanghai, 200065, China; Neurotoxin Research Center, Tongji University School of Medicine, Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Ministry of Education of the People's Republic of China, 389 Xincun Road, Shanghai, 200065, China
| | - Li-Xi Li
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, 389 Xincun Road, Shanghai, 200065, China; Neurotoxin Research Center, Tongji University School of Medicine, Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Ministry of Education of the People's Republic of China, 389 Xincun Road, Shanghai, 200065, China
| | - Ling-Jing Jin
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, 389 Xincun Road, Shanghai, 200065, China; Neurotoxin Research Center, Tongji University School of Medicine, Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Ministry of Education of the People's Republic of China, 389 Xincun Road, Shanghai, 200065, China.
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10
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Chen Q, Lin LS, Chen L, Lin J, Ding Y, Bao XD, Wu JF, Lin LK, Yan LJ, Wang R, Shi B, Qiu Y, Zheng XY, Pan LZ, Chen F, Wang J, Cai L, He BC, Liu FQ. [Relationship between selenium and the risk for oral cancer: a case-control study]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 40:810-814. [PMID: 31357804 DOI: 10.3760/cma.j.issn.0254-6450.2019.07.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the relationship between selenium and the risk for oral cancer. Methods: We performed a case-control study in 325 cases of newly diagnosed primary oral cancer from the First Affiliated Hospital of Fujian Medical University and 650 controls from the same hospital and community. Unconditional logistic regression and stratification analyses were used to explore the association between selenium and oral cancer. Adjusted OR and corresponding 95%CI were calculated. The analyses on multiple interactions between selenium and smoking or drinking status, and fruit or fish intake frequencies were conducted. Results: The level of serum selenium was 112.42 (80.98-145.06) μg/L in the case group, which was lower than 164.85 (144.44-188.53) μg/L in control group, the difference was statistical significant (P<0.01). There was a negative correlation between serum selenium level and the risk for oral cancer regardless of smoking and drinking status, and fruits and fish intake frequencies (P<0.05). There were multiple interactions between serum selenium level and smoking or drinking status, and fruit and fish intakes. Conclusions: The high level of serum selenium is a protective factor for the incidence of oral cancer, and serum selenium has multiple interactions with smoking or drinking status, and fruit and fish intakes. Therefore, reducing tobacco use and alcohol consumption and increasing the intakes of fruit and fish can reduce the risk for oral cancer to some extent.
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Affiliation(s)
- Q Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - L S Lin
- Department of Stomatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - L Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - J Lin
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Y Ding
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - X D Bao
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - J F Wu
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - L K Lin
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - L J Yan
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - R Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - B Shi
- Department of Stomatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Y Qiu
- Department of Stomatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - X Y Zheng
- Department of Stomatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - L Z Pan
- Department of Stomatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - F Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - J Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - L Cai
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - B C He
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - F Q Liu
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
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11
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Bao XD, Lin LS, Chen F, Liu FQ, Wang J, Shi B, Yan LJ, Wu JF, Lin LK, Wang R, Pan LZ, Zheng XY, Qiu Y, Cao RK, Hu ZJ, Cai L, He BC. [Association of single nucleotide polymorphisms of TBX5 gene and environmental exposure index with susceptibility to oral cancer]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:480-485. [PMID: 31091605 DOI: 10.3760/cma.j.issn.0253-9624.2019.05.009] [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 explore the association of TBX5 polymorphisms and environmental exposure index with susceptibility to oral cancer. Methods: A case-control study was conducted to collect 300 oral cancer patients hospitalized in the Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Fujian Medical University from September 2010 to December 2016. A total of 445 non-tumor patients were selected as the control group. Questionnaires were used to collect the information of all subjects and 5 ml peripheral blood was collected to detect single nucleotide polymorphisms (SNPs) of the rs10492336 locus of TBX5 gene. According to the environmental exposure index score, subjects were divided into two groups, low risk group (0-2.31) and high risk group (2.32-11.76). To analyze the association of TBX5 gene rs10492336 SNPs, environmental exposure index and oral cancer and its interactions. Results: The age of all subjects in the case group and control group were (56.19±13.10) years and (54.56±12.48) years old. Compared with CC genotype, the OR (95%CI) values of the co-dominant genetic model AC genotype and the dominant genetic model AC+AA genotype were 0.69 (0.49-0.98) and 0.70 (0.51-0.97), respectively. Compared with the low risk group, the OR (95%CI) risk of oral cancer in the high risk group was 3.72 (2.55-5.43). The results of gene-environment interaction analysis showed that compared with the group with CC genotype and high risk of environmental exposure index, the OR (95%CI) value of oral cancer in the group with AC+AA genotype and low risk of environmental exposure index was 0.18(0.10-0.31). Furthermore there was a multiplicative interaction between rs10492336 SNPs and environmental exposure index (β=-0.405, P<0.001). Conclusion: This study suggests that the TBX5 gene rs10492336 SNPs and environmental exposure index were associated with oral cancer. And there was a multiplication interaction between rs10492336 SNPs and environmental exposure index.
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Affiliation(s)
- X D Bao
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
| | - L S Lin
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350004, China
| | - F Chen
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
| | - F Q Liu
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
| | - J Wang
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
| | - B Shi
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350004, China
| | - L J Yan
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
| | - J F Wu
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
| | - L K Lin
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
| | - R Wang
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
| | - L Z Pan
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350004, China
| | - X Y Zheng
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350004, China
| | - Y Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350004, China
| | - R K Cao
- Tongji University School of Stomatology, Shanghai 200072, China
| | - Z J Hu
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
| | - L Cai
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
| | - B C He
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
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12
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Pan LZ, Bai RX, Song MM, Li YG, Zhou L, Zhong ZQ, Xu J, Yuan HS, Cui Z. [The effects of gastric bypass procedures on blood glucose, gastric inhibitory polypeptide and glucagon-like peptide-1 of normal glucose tolerance dogs]. Zhonghua Wai Ke Za Zhi 2013; 51:831-833. [PMID: 24330966] [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: 06/03/2023]
Abstract
OBJECTIVE To observe postoperative glucose tolerance, gastric inhibitory polypeptide (GIP) , and glucogan-like peptide-1 (GLP-1) in normal glucose level dogs after undergoing gastric bypass procedures, and to explore the mechanism of gastric bypass procedures to treat type 2 diabetes. METHODS The 6 dogs with normal glucose tolerance had undergone gastric bypass procedures, and measure preoperative and postoperative oral and intravenous glucose tolerance (at time points 1, 2, and 4 weeks) through changes in blood glucose, insulin, gastric inhibitory polypeptide (GIP), glucagon-like peptide-1 (GLP-1), and measure preoperative and postoperative week 4 pancreatic tissue morphology. RESULTS Second weeks after operation, the fasting blood sugar was (3.58 ± 0.33) mmol/L, and significantly lower than preoperative (t = 3.571, P < 0.05). The GLP-1 level before oral glucose tolerance test (OGTT) and 30 minutes after OGTT were (0.90 ± 0.21) and (0.91 ± 0.19) pmol/L respectively, and significantly higher than preoperative (t value were -3.660 and -2.971, P < 0.05). GLP-1 levels began to decrease in the second week after surgery. After 4 weeks, the index recovered to the preoperative level. Four weeks after surgery when compared with preoperative, islet morphology, islet number (6.8 ± 0.8 and 7.1 ± 0.8 respectively) and islet cells (16.7 ± 2.5 and 16.3 ± 3.1 respectively) did not change significantly (P > 0.05). CONCLUSION Gastric bypass procedures could be briefly affect normal glucose tolerance in dogs' blood glucose, insulin and diabetes-related gastrointestinal hormones.
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Affiliation(s)
- Li-Zhen Pan
- Department of General Surgery, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing 100050, China
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13
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Davies J, Jiang L, Pan LZ, LaBarre MJ, Anderson D, Reff M. Expression of GnTIII in a recombinant anti-CD20 CHO production cell line: Expression of antibodies with altered glycoforms leads to an increase in ADCC through higher affinity for FC gamma RIII. Biotechnol Bioeng 2001; 74:288-94. [PMID: 11410853] [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] [Indexed: 02/20/2023]
Abstract
The gene encoding the rat glycosylation enzyme beta1-4-N-acetylglucosaminyltransferase III (GnTIII) was cloned and coexpressed in a recombinant production Chinese hamster ovary (CHO) cell line expressing a chimeric mouse/human anti-CD20 IgG1 antibody. The new cell lines expressed high levels of antibody and have growth kinetics similar to that of the parent. Relative QPCR showed the cell lines to express varying levels of mRNA. High-performance liquid chromatography (HPLC) analysis showed the enzyme to have added bisecting N-acetylglucosamine (GlcNAc) residues in most (48% to 71%) of the N-linked oligosaccharides isolated from antibody preparations purified from the cell lines. In an ADCC assay the new antibody preparations promoted killing of CD20-positive target cells at approximately 10- to 20-fold lower concentrations than the parent. This activity was blocked using an anti-Fc gamma RIII antibody, supporting the role of Fc gamma RIII binding in this increase. In addition, cell binding assays showed the modified antibody bound better to Fc gamma RIII-expressing cells. The increase in ADCC activity is therefore likely due to an increased affinity of the modified antibody for the Fc gamma RIII receptor.
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Affiliation(s)
- J Davies
- IDEC Pharmaceuticals Corporation, 3010 Science Park Road, P.O. Box 919080, San Diego, California 92191-9080 USA
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14
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Davies J, Jiang L, Pan LZ, LaBarre MJ, Anderson D, Reff M. Expression of GnTIII in a recombinant anti-CD20 CHO production cell line: Expression of antibodies with altered glycoforms leads to an increase in ADCC through higher affinity for FC?RIII. Biotechnol Bioeng 2001. [DOI: 10.1002/bit.1119] [Citation(s) in RCA: 254] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Chamat S, Walsh EE, Anderson D, Osta M, Awaraji C, Pan LZ, Ochi J, Shuey S, Brams P. Human monoclonal antibodies isolated from spontaneous Epstein-Barr virus-transformed tumors of Hu-SPL-SCID mice and specific for fusion protein display broad neutralizing activity toward respiratory syncytial virus. J Infect Dis 1999; 180:268-77. [PMID: 10395839 DOI: 10.1086/314876] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Two human monoclonal antibodies, RF-1 and RF-2, specifically recognize the fusion protein of the human respiratory syncytial virus (RSV). These were isolated from spontaneous tumors in SCID mice reconstituted with human splenocytes and boosted with fusion protein. The tumors consisted of Epstein-Barr virus-transformed human B cells in animals with antigen-specific antibody titers>105. The binding affinity of RF-1 and RF-2 to the fusion protein is 1010 and 109 M-1, respectively. The antibodies bind specifically to a conformational epitope of the fusion protein on RSV-infected HEp-2 cells. Both antibodies display virus-neutralizing properties in vitro at concentrations varying between 8 and 1000 ng/mL. Virus neutralization applies to a broad variety of wild and laboratory-adapted virus strains belonging to both virus types A and B. These antibodies are potential candidates for passive immunotherapy of severe RSV infections.
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MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/isolation & purification
- Antibodies, Monoclonal/metabolism
- Antibodies, Viral/immunology
- Antibodies, Viral/isolation & purification
- Antibodies, Viral/metabolism
- Antibody Specificity
- B-Lymphocytes/virology
- Cell Transformation, Viral
- Enzyme-Linked Immunosorbent Assay
- HN Protein
- Herpesviridae Infections/immunology
- Herpesviridae Infections/virology
- Herpesvirus 4, Human/immunology
- Humans
- Immunoblotting
- Mice
- Mice, SCID
- Neoplasms, Experimental/immunology
- Neutralization Tests
- Respiratory Syncytial Viruses/immunology
- Spleen/cytology
- Tumor Virus Infections/immunology
- Tumor Virus Infections/virology
- Viral Envelope Proteins
- Viral Fusion Proteins/immunology
- Viral Proteins/immunology
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Affiliation(s)
- S Chamat
- American University of Beirut, Faculty of Medicine, Beirut, Lebanon.
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16
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Sabino E, Pan LZ, Cheng-Mayer C, Mayer A. Comparison of in vivo plasma and peripheral blood mononuclear cell HIV-1 quasi-species to short-term tissue culture isolates: an analysis of tat and C2-V3 env regions. AIDS 1994; 8:901-9. [PMID: 7946099] [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] [Indexed: 01/28/2023]
Abstract
OBJECTIVE To determine whether the HIV-1 genomes that grow out in vitro from peripheral blood mononuclear cells (PBMC) better represent the in vivo quasi-species present in plasma or PBMC. RESULTS For one patient (9606), PBMC culture represented more accurately the plasma rather than the in vivo PBMC quasi-species distribution, because a large number of tat-defective proviruses present in PBMC in vivo were not detected in plasma nor in the PBMC cultures. For a second patient (9605), PBMC culture was representative of both in vivo PBMC and plasma tat sequences, but selection of C2-V3 env sequences was observed in PBMC cultures compared with sequences present in both plasma and PBMC in vivo. This selection consisted of the absence in vitro of genomes with certain amino-acid substitutions at or near conserved glycosylation sites of the C2 region at positions 276 and 289. Site 276 has been reported to be important for viral infectivity, and these substitutions may therefore have affected infectivity. In the third patient (10095), selection of both tat and C2-V3 sequences was observed in culture as compared to plasma and PBMC in vivo. In contrast to the first two patients, this third patient contained V3 sequences in vivo that were predicted to impart syncytium induction and enhanced replication capacity. It was these sequences that grew out preferentially in vitro. CONCLUSION This study suggests that short-term PBMC culture is representative of HIV-1 genomes present in PBMC and plasma in vivo to the degree that they are infectious.
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Affiliation(s)
- E Sabino
- Irwin Memorial Blood Centers, San Francisco, CA 94118
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18
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Abstract
Free virus (virus not present within cells) was detected in the plasma of all human immunodeficiency virus (HIV)-infected individuals studied. Plasma samples from asymptomatic individuals and individuals with HIV disease were tested. The levels of virus varied, but high virus titers correlated directly with HIV-related symptoms and low CD4+ lymphocyte counts. Effective detection of infectious virus depended on the use of an enzyme-linked immunosorbent assay for p24 core antigen and culture conditions in which plasma was added to mitogen-stimulated lymphocytes within 3 h of venipuncture. When there were delays in the time to culturing of plasma, neutralizing antibodies and perhaps other factors present in the plasma were found to reduce the efficiency of virus recovery. Plasma stored at -70 degrees C for several months maintained a stable level of free virus. These results suggest that measurement of HIV present in plasma under optimal conditions could be an efficient way of monitoring the clinical state of an individual and the effects of antiviral therapy.
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Affiliation(s)
- L Z Pan
- Cancer Research Institute, School of Medicine, University of California, San Francisco 94143-0128
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19
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Pan LZ, Sheppard HW, Winkelstein W, Levy JA. Lack of detection of human immunodeficiency virus in persistently seronegative homosexual men with high or medium risks for infection. J Infect Dis 1991; 164:962-4. [PMID: 1940475 DOI: 10.1093/infdis/164.5.962] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Some studies have suggested that seronegative homosexual men who have practiced high-risk sexual behavior can carry the human immunodeficiency virus (HIV) in a silent state, detectable only by polymerase chain reaction (PCR) or selective viral culture. To assess this concept, blood specimens were studied from 59 homosexual men with recognized risk behaviors: unprotected anal receptive intercourse at least once and many lifetime sex partners. After extensive virologic studies and PCR analysis, only one virus-positive, antibody-negative individual was identified. These findings indicate that HIV virus-positive, seronegative individuals are rare.
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Affiliation(s)
- L Z Pan
- Department of Medicine, School of Medicine, University of California, San Francisco 94143
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20
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Walker CM, Thomson-Honnebier GA, Hsueh FC, Erickson AL, Pan LZ, Levy JA. CD8+ T cells from HIV-1-infected individuals inhibit acute infection by human and primate immunodeficiency viruses. Cell Immunol 1991; 137:420-8. [PMID: 1680028 DOI: 10.1016/0008-8749(91)90090-x] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
T lymphocytes expressing the CD8 surface antigen block HIV replication in CD4+ peripheral blood cells from HIV-infected individuals. We report here that CD4+ cells from HIV seronegative donors, when infected in vitro with HIV, also do not replicate virus when cocultured with CD8+ T cells from HIV-infected individuals. CD8+ cells from HIV-uninfected donors did not show this effect on virus replication. HLA-restriction of the antiviral response was not observed, and virus-containing cells were not eliminated from culture. The antiviral activity was broadly cross-reactive, as CD8+ cells from individuals infected only with HIV-1 suppressed the replication of diverse strains of HIV-1 and HIV-2, as well as the simian immunodeficiency virus. This ability of CD8+ cells to control HIV replication could play an important role in the maintenance of an asymptomatic state in HIV-infected individuals.
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Affiliation(s)
- C M Walker
- Cancer Research Institute, University of California School of Medicine, San Francisco 94143
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Morrow WJ, Homsy J, Eichberg JW, Krowka J, Pan LZ, Gaston I, Legg H, Lerche N, Thomas J, Levy JA. Long-term observation of baboons, rhesus monkeys, and chimpanzees inoculated with HIV and given periodic immunosuppressive treatment. AIDS Res Hum Retroviruses 1989; 5:233-45. [PMID: 2713168 DOI: 10.1089/aid.1989.5.233] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Baboons, rhesus monkeys, and chimpanzees were injected with the human immunodeficiency virus (HIV) and monitored for up to 4 years. Various immunosuppressive regimens were used during this time in attempts to induce development of the acquired immune deficiency syndrome (AIDS). No infectious virus was recovered or anti-HIV antibodies detected in the baboons and rhesus monkeys. Virus has been recovered from lymphocyte cultures of all five of the chimpanzees at intermittent periods following inoculation. The chimpanzees developed anti-HIV antibodies from 1 to 5 months after virus inoculation and had circulating antibodies that neutralized HIV. All the infected animals were capable of in vitro lymphocyte blastogenic responses to recombinant envelope and core HIV antigens. Despite immunosuppressive therapies and evidence of some immunologic abnormalities, none of the five chimpanzees has yet developed AIDS or a related disorder.
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Affiliation(s)
- W J Morrow
- Cancer Research Institute, University of California, School of Medicine, San Francisco 94143
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Abstract
Immunofluorescence and immunoblot assays were conducted on 488 sera from patients with AIDS and clinically healthy individuals at risk for infection by the human immunodeficiency virus. Of these, 360 contained antiviral antibodies, and nearly all reacted with the envelope precursor glycoprotein gp160. Sera from 103 individuals for whom a complete clinical history was available were evaluated in detail. Most sera recognized both the gp160 and the p55 gag precursor protein. Because these two antigens are found primarily in infected cells, the results suggest that this association makes them more immunogenic. A high prevalence of antibodies to the polymerase gene products (p65 and p31) and to a viral protein p48, which is not yet fully defined, was also noted. Many sera, particularly those from patients with Kaposi's sarcoma or Pneumocystis carinii pneumonia, lacked antibodies to both p25 and gp41. These antibody patterns could help predict the prognosis for virus-infected individuals.
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Greenspan D, Greenspan JS, Hearst NG, Pan LZ, Conant MA, Abrams DI, Hollander H, Levy JA. Relation of oral hairy leukoplakia to infection with the human immunodeficiency virus and the risk of developing AIDS. J Infect Dis 1987; 155:475-81. [PMID: 3492574 DOI: 10.1093/infdis/155.3.475] [Citation(s) in RCA: 212] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
We investigated the relation of oral hairy leukoplakia (HL) to human immunodeficiency virus (HIV) infection and to the presence or development of AIDS. All 155 patients with HL seen in our clinic were immunosuppressed homosexual men. Of 101 serum samples obtained from patients in this group who did not have AIDS, 100 showed antibodies to HIV. HIV was recovered from peripheral blood mononuclear cells of 22 of 28 patients tested. Most serum samples examined by immunoblot assay reacted with the viral envelope and gag gene precursors gp160 and p55. Of the 155 patients, 12 had AIDS at the time of diagnosis, and the syndrome developed in an additional 43 patients in one to 31 months. Survival analysis showed that the probability of AIDS developing in patients with HL was 48% by 16 months and 83% by 31 months. We conclude that oral HL is highly predictive of the development of AIDS.
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Levy JA, Pan LZ, Beth-Giraldo E, Kaminsky LS, Henle G, Henle W, Giraldo G. Absence of antibodies to the human immunodeficiency virus in sera from Africa prior to 1975. Proc Natl Acad Sci U S A 1986; 83:7935-7. [PMID: 3464008 PMCID: PMC386838 DOI: 10.1073/pnas.83.20.7935] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Three different assays for detection of antibodies to the human immunodeficiency virus (HIV) were conducted on 677 sera obtained from 1964 to 1975 from male and female children and adults in Uganda and other countries in Africa. Several sera were collected from individuals with Kaposi sarcoma. No evidence of antibodies to the virus was noted up to 1975. These results strongly suggest that the emergence of HIV in Africa occurred relatively recently. Further studies are required to determine the geographic origin of the acquired immunodeficiency syndrome virus.
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Abstract
Three strains of mice bearing the autosomal recessive lpr gene (MRL, C57BL/6, and C3H) that had spontaneously developed a lupus-like disease were studied sequentially for functional natural killer (NK) and natural cytotoxic (NC) cell activity. Natural killing was impaired in spleen and bone marrow cells from all the lpr strains, as well as from the congenic strain MRL--+/+, which develops a late onset lupus-like disease. The NK cell activity was found to be depleted as early as 2 months of age in all lpr strains, and decreased further with age. NK activity was augmentable by Poly I:C and interleukin 2 (IL-2), suggesting that the residual cells can respond to NK modulators. In contrast with NK cell activity, NC activity was not decreased in lpr mice but could be augmented by IL-3-rich supernatants. The spontaneous decrease in NK cell activity was associated with an increased autologous plaque-forming cell (APFC) response to bromelin-treated mouse red blood cells, which is produced primarily by B cells possessing the Ly-1 phenotype (Lyt-1+ B). When NK cell activity was increased by exogenous administration of Poly I:C, the APFC response diminished. Treatment of spleen cells with anti-asialo GM1 prior to Poly I:C treatment resulted in a decreased NK response but increased both APFC and Lyt-1+ B cells. The possible regulation of autoreactivity by NK cells is discussed.
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