1
|
Fan B, Goodman W, Cho RY, Sheth SA, Bouchard RR, Aazhang B. Computational modeling and minimization of unintended neuronal excitation in a LIFU stimulation. Sci Rep 2023; 13:13403. [PMID: 37591991 PMCID: PMC10435497 DOI: 10.1038/s41598-023-40522-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 08/11/2023] [Indexed: 08/19/2023] Open
Abstract
The neuromodulation effect of low-intensity focused ultrasound (LIFU) is highly target-specific. Unintended off-target neuronal excitation can be elicited when the beam focusing accuracy and resolution are limited, whereas the resulted side effect has not been evaluated quantitatively. There is also a lack of methods addressing the minimization of such side effects. Therefore, this work introduces a computational model of unintended neuronal excitation during LIFU neuromodulation, which evaluates the off-target activation area (OTAA) by integrating an ultrasound field model with the neuronal spiking model. In addition, a phased array beam focusing scheme called constrained optimal resolution beamforming (CORB) is proposed to minimize the off-target neuronal excitation area while ensuring effective stimulation in the target brain region. A lower bound of the OTAA is analytically approximated in a simplified homogeneous medium, which could guide the selection of transducer parameters such as aperture size and operating frequency. Simulations in a human head model using three transducer setups show that CORB markedly reduces the OTAA compared with two benchmark beam focusing methods. The high neuromodulation resolution demonstrates the capability of LIFU to effectively limit the side effects during neuromodulation, allowing future clinical applications such as treatment of neuropsychiatric disorders.
Collapse
Affiliation(s)
- Boqiang Fan
- Department of Electrical and Computer Engineering, Rice University, Houston, TX, 77005, USA.
| | - Wayne Goodman
- Department of Electrical and Computer Engineering, Rice University, Houston, TX, 77005, USA
- Department of Psychiatry and Behavioral Science, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Raymond Y Cho
- Department of Psychiatry and Behavioral Science, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Sameer A Sheth
- Department of Electrical and Computer Engineering, Rice University, Houston, TX, 77005, USA
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Richard R Bouchard
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Behnaam Aazhang
- Department of Electrical and Computer Engineering, Rice University, Houston, TX, 77005, USA
| |
Collapse
|
2
|
Nakamura Y, Yoshida S, Arita Y, Takeshita R, Kimura K, Aida Y, Asai S, Maezawa Y, Yoshitomi K, Chen W, Soma T, Kobayashi M, Fujiwara M, Fan B, Ishikawa Y, Fukuda S, Waseda Y, Tanaka H, Yokoyama M, Jinzaki M, Fujii Y. Can we avoid second transurethral resection according to VI-RADS score in patients with high-risk non-muscle-invasive bladder cancer? Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00645-0] [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: 02/12/2023]
|
3
|
Fukuda S, Kobayashi M, Chen W, Fan B, Liu F, Afari J, Dhanji S, Ghassemzadeh S, Shah A, Schmeusser B, Greenwald R, Medline A, Kamal F, Ali A, Nakayama A, Meagher M, Patil D, Tanaka H, Saito K, Derweesh I, Master V, Fujii Y. Impact of preoperative C-reactive protein level on oncological outcomes after nephrectomy in patients with high-risk renal cell carcinoma: An analysis from the International Marker Consortium for Renal Cancer (INMARC) cohort. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00507-9] [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: 02/12/2023]
|
4
|
Ishikawa Y, Uehara S, Ishihara K, Hirose K, Soma T, Fujiwara M, Kobayashi M, Fan B, Nakamura Y, Uchida Y, Fukuda S, Tanaka H, Yoshida S, Yokoyama M, Matsuoka Y, Fujii Y. Variability in diagnostic performance of non-muscle invasive bladder cancer for each region using fluorescence cystoscopy with orally administered 5-aminolevulinic acid. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00317-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
5
|
Ishikawa Y, Sho U, Ishihara K, Hirose K, Soma T, Fujiwara M, Kobayashi M, Fan B, Nakamura Y, Uchida Y, Fukuda S, Tanaka H, Yoshida S, Yokoyama M, Matsuoka Y, Fujii Y. Orally administered 5-aminolevulinic acid can cause intraoperative hypotension in patients with bladder cancer undergoing transurethral resection. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00332-3] [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: 11/28/2022]
|
6
|
Fan B, Xu X, Wang X. Mutational landscape of paired primary and synchronous metastatic lymph node in chemotherapy naive gallbladder cancer. Mol Biol Rep 2022; 49:1295-1301. [PMID: 34988893 DOI: 10.1007/s11033-021-06957-y] [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: 08/15/2021] [Accepted: 11/11/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Comprehensive genomic analysis of paired primary tumors and their metastatic lesions may provide new insights into the biology of metastatic processes and therefore guide the development of novel strategies for intervention. To date, our knowledge of the genetic divergence and phylogenetic relationships in gallbladder cancer (GBC) is limited. METHODS We performed whole exome sequencing for 5 patients with primary tumor, metastatic lymph node (LNM) and corresponding normal tissue. Mutations, mutation signatures and copy number variations were analyzed with state-of-art bioinformatics methods. Phylogenetic tree was also generated to infer metastatic pattern. RESULTS Five driver mutations were detected in these patients. Among which, TP53 was the only shared mutation between primary tumor and LNM. Although tumor mutational burden was comparable between primary tumor and LNM, higher mutation burden was observed in LNM of one patient. Copy number variations (CNVs) burden was higher in LNM than their primary tumor. Phylogenetic analysis indicated both linear and parallel progression of metastasis exist in these patients. TP53 mutation and CNVs were homogenously between primary tumor and LNM. CONCLUSIONS High consistence of genetic landscape were shown between primary tumor and LNM in GBC. However, heterogenicity still exist between primary tumor and LNM in particular patients in term of driver mutation, TMB and CNV burden. Phylogenetic analysis indicated both Linear and parallel progression of metastasis were exist among these patients.
Collapse
Affiliation(s)
- Boqiang Fan
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Road, Nanjing, Jiangsu Province, China
| | - Xianfeng Xu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xuehao Wang
- Key Laboratory of Liver Transplantation, NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Chinese Academy of Medical Sciences, Nanjing, Jiangsu Province, China.
| |
Collapse
|
7
|
Ding M, Cui H, Li B, Zou B, Xu Y, Fan B, Li W, Ma L, Yu J, Wang L. Integrating Preoperative CT and Clinical Factors for Lymph Node Metastasis Prediction in Esophageal Cancer by Feature-Wise Attentional Graph Neural Network (FAGNN). Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
8
|
Yang L, Li B, Xu Y, Zou B, Fan B, Qin W, Fan X, Zhang D, Wang L. The Role of Adjuvant Chemotherapy in Patients With Stage IB Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1288] [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: 11/28/2022]
|
9
|
Fan X, Li B, Wang S, Fan B, Wang C, Yang L, Qin W, Zhang D, Wang L. Prophylactic Cranial Irradiation-Related Lymphopenia Affects Progression-Free Survival in Patients With Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
10
|
Wang R, Wu S, Qian D, Zhang Y, Fan B, Hu M. A Lung Cancer Auxiliary Diagnostic Method: Deep Learning Based Mediastinal Lymphatic Partitions Segmentation for Cancer Staging. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
11
|
Shen K, Xue S, Xie Y, Wang H, Li J, Sun Y, Wang K, Xu G, Guo T, Fan B, Zhu L, Ren A. Comparison of thermal ablation and routine surgery for the treatment of papillary thyroid microcarcinoma: a systematic review and Meta-analysis. Int J Hyperthermia 2021; 37:913-924. [PMID: 32722973 DOI: 10.1080/02656736.2020.1777331] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Thermal ablation (TA), as an alternative to surgery, has shown some benefits in the treatment of papillary thyroid microcarcinoma (PTMC) patients, especially for those who are at high risk for surgery or refuse surgery. We performed a systematic review and meta-analysis to evaluate the efficiency, safety, and economy of TA, compared with those of routine surgery (RS), for the treatment of PTMC. METHODS PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure (CNKI), Wanfang, and VIP databases were retrieved from inception to 10 January 2020 to identify relevant original studies on comparison of TA and RS for treatment of PTMC. The recurrence rate, recurrence-free survival (RFS), complication rate, operation time, postoperative length of stay, and cost during the perioperative period were extracted as main indices. The pooled standardized mean difference (SMD) or odds ratio (OR) with 95% confidence intervals (CI) were calculated and analyzed. Chi-square test and I 2 statistic were applied to determine the heterogeneity among studies. The sensitivity analysis was applied to explore the origin of heterogeneity, and the publication bias was evaluated by Egger's test. RESULTS Seven retrospective studies with a total of 867 patients met the eligibility criteria and were included in the final meta-analysis. Our study demonstrated that TA showed significant reduction in complication with a pooled OR 0.24 (95% CI 0.13 to 0.43), postoperative length of stay with a pooled SMD -3.14 (95% CI -4.77 to -1.51) and cost during the perioperative period with a pooled SMD of -1.69 (95% CI -3.18 to -0.20). It also demonstrated that both TA and RS had similar pooled proportion of recurrence of OR 0.93 (95% CI 0.38 to 2.30) and recurrence-free survive (RFS). The sensitivity analysis showed that each included study had no significant effect on the results and the results were stable and reliable. The Egger's test demonstrated publication bias was acceptable. CONCLUSIONS TA may not be oncologically inferior to RS, and it is a relatively safe and economical alternative for the treatment of PTMC.
Collapse
Affiliation(s)
- Kangjie Shen
- The First Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Shengbai Xue
- The First Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Yi Xie
- The First Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Hongye Wang
- The First Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Jing Li
- School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yifan Sun
- The First Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Kexuan Wang
- School of Nursing, Nanjing Medical University, Nanjing, China
| | - Guochao Xu
- School of the First Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Tao Guo
- The First Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Boqiang Fan
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lingjun Zhu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Anjing Ren
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
12
|
Luo D, Shi Y, Zhu M, Wang H, Yan D, Yu J, Ji J, Liu X, Fan B, Xu Y, Zhang M, He W, Xu J, Yang T. Subclinical lipohypertrophy--Easily ignored complications of insulin therapy. J Diabetes Complications 2021; 35:107806. [PMID: 33280982 DOI: 10.1016/j.jdiacomp.2020.107806] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 12/28/2022]
Abstract
AIMS Subclinical lipohypertrophy is a lesion meeting ultrasonic criteria for lipohypertrophy that was not detected by inspection and palpation. Little information is published on subclinical lipohypertrophy among insulin injection people with diabetes. We aimed to investigate the subclinical lipohypertrophy prevalence, risk factors, and the association between subclinical lipohypertrophy and glycemic control. METHODS This observational study included 316 people with diabetes who had continuously received insulin therapy for at least one year. We performed ultrasound scanning and clinical examination for evidence of subclinical lipohypertrophy. Demographic characteristics, clinical information, and glycated hemoglobin were measured. RESULTS The overall prevalence of subclinical lipohypertrophy was 19.9%. By stepwise logistic regression, higher BMI (OR = 1.44, 95%CI: 1.15-1.81, P = 0.002), incorrect rotation of sites (OR = 3.11, 95%CI: 1.02-9.47, P = 0.046), insulin needle reusage for more than four times (OR = 10.00, 95%CI: 3.23-31.02, P = 0.000) and type 1 diabetes (OR = 6.33, 95%CI: 1.32-30.47, P = 0.021) remained associated with subclinical lipohypertrophy. Subclinical lipohypertrophy demonstrated a significant independent correlation with the nonoptimal glycemic control (OR = 9.97, 95% CI: 3.46-28.75, P = 0.000) when accounting for demographic and diabetes-related parameters. CONCLUSIONS Subclinical lipohypertrophy is common among insulin-injecting patients with diabetes and is related to glycemic control deterioration. Ultrasonography may be an ideal adjunct in the evaluation of easily ignored lipohypertrophy lesions, especially where poor glycemic control, incorrect injection behaviors, overweight or obesity are documented.
Collapse
Affiliation(s)
- Dan Luo
- School of Nursing, Nanjing Medical University, 101 Longmian Dadao, Jiangning District, Nanjing, China
| | - Yun Shi
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China
| | - Min Zhu
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China
| | - Hong Wang
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China
| | - Dan Yan
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China
| | - Jian Yu
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China
| | - JiaJia Ji
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China
| | - Xiaoyun Liu
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China
| | - Boqiang Fan
- Department of Radiology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China
| | - Yang Xu
- Department of Dermatology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China
| | - Mei Zhang
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China
| | - Wei He
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China.
| | - Jingjing Xu
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China.
| | - Tao Yang
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou District, Nanjing, China
| |
Collapse
|
13
|
Ma H, Ouyang C, Huang Y, Xing C, Cheng C, Liu W, Yuan D, Zeng M, Yu X, Ren H, Yuan Y, Zhang L, Xu F, Cui Y, Ren W, Huang H, Qian H, Fan B, Wang N. Comparison of microwave ablation treatments in patients with renal secondary and primary hyperparathyroidism. Ren Fail 2020; 42:66-76. [PMID: 31928297 PMCID: PMC7006805 DOI: 10.1080/0886022x.2019.1707097] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Purpose Microwave ablation (MWA) is feasible for severe renal secondary hyperparathyroidism (SHPT) and primary hyperparathyroidism (PHPT) patients ineligible for parathyroidectomy (PTX). Here we compared the clinical manifestations and characteristics of parathyroid glands in these two groups, and summarized the techniques, safety and efficacy of MWA. Methods Baseline clinical characteristics, ablation-related techniques, adverse events/complications, and efficacy were recorded. Results In SHPT group, malnutrition, cardiovascular/pulmonary complications, and abnormal bone metabolism were severe. SHPT patients had more hyperplastic parathyroid glands. The volume of each gland was smaller, and the time of ablation for a single parathyroid was shorter in the SHPT group, although there were no significant differences compared with patients in the PHPT group. Three patients in both groups had recurrent laryngeal nerve injuries and all recovered, except for one SHPT patient. By the end of follow-up, serum iPTH levels had decreased from 2400.26 ± 844.26 pg/mL to 429.39 ± 407.93 pg/mL (p < .01) in SHPT and from 297.73 ± 295.32 pg/mL to 72.22 ± 36.51 pg/mL in PHPT group (p < .01). Hypocalcemia was more common (p < .001) and serum iPTH levels were prone to rebound in SHPT patients after MWA. Conclusion MWA can be reserved for those who had high surgical risks because of less invasiveness. Injuries of recurrent laryngeal nerves should be noticed. The health status, perioperative, and intraoperative procedures were more complicated and all parathyroids found by ultrasound should be ablated completely in SHPT patients.
Collapse
Affiliation(s)
- Haoyang Ma
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Chun Ouyang
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Yaoyu Huang
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Changying Xing
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Chen Cheng
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Wei Liu
- Department of Nuclear Medicine, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Donglan Yuan
- Department of Nuclear Medicine, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Ming Zeng
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Xiangbao Yu
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Haibin Ren
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Yanggang Yuan
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Lina Zhang
- Department of Nephrology, Henan Key Laboratory for Kidney Disease and Immunology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan, China
| | - Fangyan Xu
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Ying Cui
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Wenkai Ren
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Hui Huang
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hanyang Qian
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Boqiang Fan
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Ningning Wang
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| |
Collapse
|
14
|
Li B, Li W, Fan B, Zou B, Jiang C, Sun X, Yu J, Wang L. Efficacy of Radiotherapy In Oligometastatic Esophageal Squamous Cell Cancer Patients: New Evidence From A Retrospective Study. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Li B, Jiang C, Pang L, Fan B, Zou B, Ding M, Sun X, Yu J, Wang L. Toxicity Profile of Combining Immune Checkpoint Inhibitors and Thoracic Radiotherapy in Non-Small Cell Lung Cancer: A Systematic Analysis of Literature. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1260] [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: 11/16/2022]
|
16
|
Fan B, Chen LP, Yuan YH, Xiao HN, Lv XS, Xia ZY. MiR-15a-3p suppresses the growth and metastasis of ovarian cancer cell by targeting Twist1. Eur Rev Med Pharmacol Sci 2020; 23:1934-1946. [PMID: 30915736 DOI: 10.26355/eurrev_201903_17232] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the roles of miR-15a-3p in ovarian cancer cell growth and metastasis. PATIENTS AND METHODS A key role of miR-15a-3p was identified via gene profiling and bioinformatics analysis. The impact of miR-15a-3p on ovarian cancer cell growth, migration and invasion was measured by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT), wound-healing and transwell invasion assays. Bioinformatics and luciferase reporter assays were applied to identify that twist family BHLH transcription factor 1 (Twist1) was the target gene of miR-15a-3p. The miR-15a-3p level and the expression of Twist1 were detected using quantitative Real-time polymerase chain reaction (qRT-PCR) assay. The expressions of N-cadherin and E-cadherin were measured by immunofluorescence staining. Small interfering RNA targeting Twist1 and pCDNA3.1 containing Twist1 were applied to decrease and increase the expression of Twist1, respectively. RESULTS miR-15a-3p was markedly down-regulated in ovarian cancer. Exogenous up-regulation of miR-15a-3p inhibited the growth, colony formation, migration and invasion of ovarian cancer cell in vitro. Furthermore, a xenograft model indicated that miR-15a-3p inhibited tumour growth and the metastatic potential of ovarian cancer cell in vivo. We found that Twist1 was the direct target of miR-15a-3p in ovarian cancer and that its expression was negatively correlated with the level of miR-15a-3p in ovarian cancer tissues. Up-regulation of miR-15a-3p rescued the inhibitory impact of miR-15a-3p on ovarian cancer cell growth, migration and invasion. Finally, down-regulation of Twist1 mimicked the suppressive effects of miR-15a-3p on ovarian cancer cell. CONCLUSIONS We demonstrated that miR-15a-3p is down-regulated in ovarian cancer. Up-regulation of miR-15a-3p restrains the growth and metastasis of ovarian cancer cell by regulating Twist1.
Collapse
Affiliation(s)
- B Fan
- Obstetrics and Gynecology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China.
| | | | | | | | | | | |
Collapse
|
17
|
Fan B, Li L, Xiao DJ, Xu T. Study of miR-26a inhibiting epithelial-mesenchymal transition and invasion of Tu686 cell line through SMAD1. Eur Rev Med Pharmacol Sci 2020; 23:217-224. [PMID: 30657563 DOI: 10.26355/eurrev_201901_16767] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aims to investigate the effect of miR-26a on the epithelial-mesenchymal transition (EMT) and invasion of Tu686 cell line through SMAD1. MATERIALS AND METHODS Tu686 Squamous cell carcinoma of head and neck (SCCHN) cell strains were divided into the miR-26a group, miR-NC group, co-transfection group and blank control group. Among them, the miR-26a group only transfected miR-26a mimics, the miR-NC group only transfected miR-26a negative control, the co-transfection group transfected miR-26a mimics and pcDNA3.1-SMAD1 plasmid. The qRT-PCR method was used for the detection of the expressions of miR-26a and SMAD1 in each group of cells, transwell assay for the detection of the invasion ability of each group of cells and Western blot for detecting the expression level of SMAD1 and the expressions of EMT-related proteins E-cadherin and N-cadherin. RESULTS The relative expression of miR-26a in the miR-26a group was significantly higher than that in the miR-NC group and blank control group, and the relative expression in the co-transfection group was significantly higher than that in the miR-NC and blank control groups. The relative expression of SMAD1 in the miR-26a group was significantly lower than that in the miR-NC and blank control groups, and the relative expression in the co-transfection group was lower than that in the miR-NC and blank control groups, and higher than that in the miR-26a group (all p<0.05). There was no significant difference between the miR-NC group and the blank control group (p>0.05). CONCLUSIONS miR-26a may reduce the expression level of SMAD1, affect the expression of EMT-related proteins, inhibit the EMT function of Tu686 cells of squamous cell carcinoma of head and neck, and inhibit the invasion of them.
Collapse
Affiliation(s)
- B Fan
- Department of Otorhinolaryngology, Wuxi No. 2 People's Hospital, Wuxi, P.R. China.
| | | | | | | |
Collapse
|
18
|
Jheengut Y, Fan B. Intraoperative identification of persistent left superior vena cava with intracavitary electrocardiogram during venous port insertion: A report of eight cases. J Vasc Access 2020; 22:834-839. [PMID: 32546056 DOI: 10.1177/1129729820931308] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Persistent left superior vena cava is a rare congenital anomaly, occurring in 0.3% to 0.5% of general population and up to 10% in patients with congenital heart disease. This anomaly is usually discovered incidentally during central venous catheterization from left side. Since 2015, we have identified eight cases of persistent left superior vena cava out of a total of 2637 patients who had left sided venous port insertion in our department. The persistent left superior vena cavae were identified with the aid of intracavitary electrocardiogram. The characteristic finding was an initial negative P-wave (in lead II), followed by a biphasic P-wave pattern during catheter insertion. All the ports worked properly, with a total catheter dwelling time of 2586 days (range: 96-756 days, mean: 323.25 days), and no catheter-related complication was observed. However, because of the paucity of clinical evidence, we should still be prudent in the long-term use of venous ports in persistent left superior vena cava.
Collapse
Affiliation(s)
- Yogesh Jheengut
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Boqiang Fan
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
19
|
Song Z, Lu Y, Liu X, Wei C, Oladipo A, Fan B. Evaluation of Pantoea eucalypti FBS135 for pine (Pinus massoniana) growth promotion and its genome analysis. J Appl Microbiol 2020; 129:958-970. [PMID: 32329126 DOI: 10.1111/jam.14673] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 04/16/2020] [Accepted: 04/18/2020] [Indexed: 12/15/2022]
Abstract
AIMS Pinus massoniana is one of the most widely distributed forest plants in China. In this study, we isolated a bacterial endophyte (designated FBS135) from apical buds and needles of P. massoniana. Investigations were performed to understand the effects of the strain on pine growth, its genomic features and the functions of the plasmids it carries. METHODS AND RESULTS Based on its morphological features and 16S rRNA sequence, strain FBS135 was primarily identified as Pantoea eucalypti. We found that FBS135 not only promoted the growth of P. massoniana seedlings, but also significantly increased the survival rate of pine seedlings. The whole genome of FBS135 was sequenced, which revealed that the bacterium carries one chromosome and four plasmids. Its chromosome is 4 023 751 bp in size and contains dozens of genes involved in plant symbiosis. Curing one of the four plasmids, pPant1, resulted in a decrease in the size of the FBS135 colonies and the loss of the ability to synthesize yellow pigment, indicating that this plasmid may be very important for FBS135. CONCLUSIONS Pantoea eucalypti FBS135 has a genomic basis to be implicated in plant-associated lifestyle and was established to have the capability to promote pine growth. SIGNIFICANCE AND IMPACT OF THE STUDY To the best of our knowledge, this is the first report that such a bacterial species, P. eucalypti, was isolated from pine trees and evidenced to have pine beneficial activities. Our results elucidate the ecological effects of endophytes on forest plants as well as endophyte-plant interaction mechanisms.
Collapse
Affiliation(s)
- Z Song
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Y Lu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - X Liu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - C Wei
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - A Oladipo
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - B Fan
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| |
Collapse
|
20
|
Ezzati G, Fenton O, Healy MG, Christianson L, Feyereisen GW, Thornton S, Chen Q, Fan B, Ding J, Daly K. Impact of P inputs on source-sink P dynamics of sediment along an agricultural ditch network. J Environ Manage 2020; 257:109988. [PMID: 31868644 DOI: 10.1016/j.jenvman.2019.109988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/02/2019] [Accepted: 12/11/2019] [Indexed: 06/10/2023]
Abstract
Phosphorus (P) loss from intensive dairy farms is a pressure on water quality in agricultural catchments. At farm scale, P sources can enter in-field drains and open ditches, resulting in transfer along ditch networks and delivery into nearby streams. Open ditches could be a potential location for P mitigation if the right location was identified, depending on P sources entering the ditch and the source-sink dynamics at the sediment-water interface. The objective of this study was to identify the right location along a ditch to mitigate P losses on an intensive dairy farm. High spatial resolution grab samples for water quality, along with sediment and bankside samples, were collected along an open ditch network to characterise the P dynamics within the ditch. Phosphorus inputs to the ditch adversely affected water quality, and a step change in P concentrations (increase in mean dissolved reactive phosphorus (DRP) from 0.054 to 0.228 mg L-1) midway along the section of the ditch sampled, signalled the influence of a point source entering the ditch. Phosphorus inputs altered sediment P sorption properties as P accumulated along the length of the ditch. Accumulation of bankside and sediment labile extractable P, Mehlich 3 P (M3P) (from 13 to 97 mg kg-1) resulted in a decrease in P binding energies (k) to < 1 L mg-1 at downstream points and raised the equilibrium P concentrations (EPC0) from 0.07 to 4.61 mg L-1 along the ditch. The increase in EPC0 was in line with increasing dissolved and total P in water, demonstrating the role of sediment downstream in this ditch as a secondary source of P to water. Implementation of intervention measures are needed to both mitigate P loss and remediate sediment to restore the sink properties. In-ditch measures need to account for a physicochemical lag time before improvements in water quality will be observed.
Collapse
Affiliation(s)
- G Ezzati
- Teagasc, Environmental Research Centre, Johnstown Castle, Co. Wexford, Ireland; Civil Engineering, College of Science and Engineering, Ryan Institute, National University of Ireland, Galway, Galway, Ireland
| | - O Fenton
- Teagasc, Environmental Research Centre, Johnstown Castle, Co. Wexford, Ireland
| | - M G Healy
- Civil Engineering, College of Science and Engineering, Ryan Institute, National University of Ireland, Galway, Galway, Ireland
| | - L Christianson
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - G W Feyereisen
- USDA-Agricultural Research Service (ARS), St. Paul, MN, USA
| | - S Thornton
- Groundwater Protection and Restoration Group, Kroto Research Institute, University of Sheffield, Sheffield, United Kingdom
| | - Q Chen
- Beijing Key Larboratory of Farmyard Soil Pollution Prevention-control and Remediation; College of Resourse and Environmental Sciences, China Agricultural Univerisy, Beijing, 100193, PR China
| | - B Fan
- Beijing Key Larboratory of Farmyard Soil Pollution Prevention-control and Remediation; College of Resourse and Environmental Sciences, China Agricultural Univerisy, Beijing, 100193, PR China
| | - J Ding
- Beijing Key Larboratory of Farmyard Soil Pollution Prevention-control and Remediation; College of Resourse and Environmental Sciences, China Agricultural Univerisy, Beijing, 100193, PR China
| | - K Daly
- Teagasc, Environmental Research Centre, Johnstown Castle, Co. Wexford, Ireland.
| |
Collapse
|
21
|
Abstract
Textured surfaces, comprised of grooves filled with air, e.g., air-filled surfaces (AFS), or with liquid, e.g., liquid-filled surfaces (LFS), significantly influence fluid flows and the related electrokinetic streaming potential (Vs). Here, electroosmotic mobility related tensorial effects on the Vs were experimentally investigated. A significant modulation of the Vs, as high as 100%, due to transverse pressure gradients, was demonstrated. The study yields insights into understanding geometrical effects in electrolyte flows with implications to the establishment of local electric fields, energy generation, and biological separations.
Collapse
Affiliation(s)
- B Fan
- Program in Materials Science, Department of Mechanical Engineering , University of California, San Diego , La Jolla , California 92093 , United States
| | - P R Bandaru
- Program in Materials Science, Department of Mechanical Engineering , University of California, San Diego , La Jolla , California 92093 , United States
| |
Collapse
|
22
|
Xie H, Zhang Y, He Y, You K, Fan B, Yu D, Li M. Automatic and Fast Recognition of On-Road High-Emitting Vehicles Using an Optical Remote Sensing System. Sensors (Basel) 2019; 19:s19163540. [PMID: 31412672 PMCID: PMC6720203 DOI: 10.3390/s19163540] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/10/2019] [Accepted: 08/11/2019] [Indexed: 11/16/2022]
Abstract
Optical remote sensing systems (RSSs) for monitoring vehicle emissions can be installed on any road and provide non-contact on-road measurements, that allow law enforcement departments to monitor emissions of a large number of on-road vehicles. Although many studies in different research fields have been performed using RSSs, there has been little research on the automatic recognition of on-road high-emitting vehicles. In general, high-emitting vehicles and low-emitting vehicles are classified by fixed emission concentration cut-points, that lack a strict scientific basis, and the actual cut-points are sensitive to environmental factors, such as wind speed and direction, outdoor temperature, relative humidity, atmospheric pressure, and so on. Besides this issue, single instantaneous monitoring results from RSSs are easily affected by systematic and random errors, leading to unreliable results. This paper proposes a method to solve the above problems. The automatic and fast-recognition method for on-road high-emitting vehicles (AFR-OHV) is the first application of machine learning, combined with big data analysis for remote sensing monitoring of on-road high-emitting vehicles. The method constructs adaptively updates a clustering database using real-time collections of emission datasets from an RSS. Then, new vehicles, that pass through the RSS, are recognized rapidly by the nearest neighbor classifier, which is guided by a real-time updated clustering database. Experimental results, based on real data, including the Davies-Bouldin Index (DBI) and Dunn Validity Index (DVI), show that AFR-OHV provides faster convergence speed and better performance. Furthermore, it is not easily disturbed by outliers. Our classifier obtains high scores for Precision (PRE), Recall (REC), the Receiver Operator Characteristic (ROC), and the Area Under the Curve (AUC). The rates of different classifications of excessive emissions and self-adaptive cut-points are calculated automatically in order to provide references for law enforcement departments to establish evaluation criterion for on-road high-emitting vehicles, detected by the RSS.
Collapse
Affiliation(s)
- Hao Xie
- Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Yujun Zhang
- Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
| | - Ying He
- Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
| | - Kun You
- Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
| | - Boqiang Fan
- Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Dongqi Yu
- Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Mengqi Li
- Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| |
Collapse
|
23
|
Qu G, Fan B, Fu X, Yu Y. The Impact of Frequency Scale on the Response Sensitivity and Reliability of Cortical Neurons to 1/f β Input Signals. Front Cell Neurosci 2019; 13:311. [PMID: 31354432 PMCID: PMC6637762 DOI: 10.3389/fncel.2019.00311] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 06/25/2019] [Indexed: 12/16/2022] Open
Abstract
What type of principle features intrinsic inside of the fluctuated input signals could drive neurons with the maximal excitations is one of the crucial neural coding issues. In this article, we examined both experimentally and theoretically the cortical neuronal responsivity (including firing rate and spike timing reliability) to input signals with different intrinsic correlational statistics (e.g., white-type noise, showed 1/f0 power spectrum, pink noise 1/f, and brown noises 1/f2) and different frequency ranges. Our results revealed that the response sensitivity and reliability of cortical neurons is much higher in response to 1/f noise stimuli with long-term correlations than 1/f0 with short-term correlations for a broad frequency range, and also higher than 1/f2 for all frequency ranges. In addition, we found that neuronal sensitivity diverges to opposite directions for 1/f noise comparing with 1/f0 white noise as a function of cutoff frequency of input signal. As the cutoff frequency is progressively increased from 50 to 1,000 Hz, the neuronal responsiveness increased gradually for 1/f noise, while decreased exponentially for white noise. Computational simulations of a general cortical model revealed that, neuronal sensitivity and reliability to input signal statistics was majorly dominated by fast sodium inactivation, potassium activation, and membrane time constants.
Collapse
Affiliation(s)
- Guojie Qu
- State Key Laboratory of Medical Neurobiology, School of Life Science, Human Phenome Institute, Institute of Brain Science, Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
| | - Boqiang Fan
- State Key Laboratory of Medical Neurobiology, School of Life Science, Human Phenome Institute, Institute of Brain Science, Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
| | - Xin Fu
- State Key Laboratory of Medical Neurobiology, School of Life Science, Human Phenome Institute, Institute of Brain Science, Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
| | - Yuguo Yu
- State Key Laboratory of Medical Neurobiology, School of Life Science, Human Phenome Institute, Institute of Brain Science, Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
| |
Collapse
|
24
|
Zhao Y, Fan W, Xu T, Tay FR, Gutmann JL, Fan B. Evaluation of several instrumentation techniques and irrigation methods on the percentage of untouched canal wall and accumulated dentine debris in C‐shaped canals. Int Endod J 2019; 52:1354-1365. [DOI: 10.1111/iej.13119] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 03/18/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Y. Zhao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - W. Fan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - T. Xu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - F. R. Tay
- Department of Endodontics The Dental College of Georgia Augusta University Augusta GA USA
| | - J. L. Gutmann
- Department of Restorative Science/Endodontics Texas A&M University Baylor College of Dentistry Dallas TX USA
| | - B. Fan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| |
Collapse
|
25
|
Chen HF, Jiang QJ, Qiu YQ, Chen XC, Fan B, Wang Y, Wang DN. Hollow-Core-Photonic-Crystal-Fiber-Based Miniaturized Sensor for the Detection of Aggregation-Induced-Emission Molecules. Anal Chem 2018; 91:780-784. [PMID: 30475594 DOI: 10.1021/acs.analchem.8b03219] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A miniature sensor for detection of aggregation-induced-emission (AIE) molecules is proposed in this work. The sensing head is fabricated by use of hollow-core photonic crystal fiber with a core diameter of about 4.8 μm. The cladding holes are sealed with a fusion splicing technique, and the central hole remains open to allow the filtration of solution with AIE molecules. When the solution is excited by an ultraviolet lamp, the fluorescence is received by a fiber-optic spectrometer. The fluorescence intensity is associated with the concentration of AIE molecules and the infiltrated-core length. In the whole process of the experiments, the output-peak wavelength is stable, which indicates that the existing forms of AIE particles are stable, and the fluorescence reabsorption can be neglected. The experimental results obtained are in accordance with traditional microplate-spectrophotometer methods. The most exciting result is that the amount of sample measured can be as low as 0.36 nL, which allows the detection of AIE molecules at only 0.02 pmol. In addition, the miniature sensor was successfully applied to the detection of an AIE-based bioprobe for evaluating the activity of the dipeptidyl-peptidase 4 (DPP-4) inhibitor sitagliptin with an IC50 of 59.80 ± 3.06 nM. The advantages of small device size and nanoliter-scale sample volumes suggest that the proposed sensor is promising for many biosensing applications.
Collapse
Affiliation(s)
- H F Chen
- College of Optical and Electronic Technology , China Jiliang University , Hangzhou , Zhejiang 310018 , China.,State Key Laboratory of Advanced Optical Communication Systems and Networks , Shanghai Jiaotong University , Shanghai 200000 , China
| | - Q J Jiang
- College of Optical and Electronic Technology , China Jiliang University , Hangzhou , Zhejiang 310018 , China.,State Key Laboratory of Advanced Optical Communication Systems and Networks , Shanghai Jiaotong University , Shanghai 200000 , China
| | - Y Q Qiu
- College of Optical and Electronic Technology , China Jiliang University , Hangzhou , Zhejiang 310018 , China
| | - X C Chen
- College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , Zhejiang 310058 , China
| | - B Fan
- College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , Zhejiang 310058 , China
| | - Y Wang
- College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , Zhejiang 310058 , China
| | - D N Wang
- College of Optical and Electronic Technology , China Jiliang University , Hangzhou , Zhejiang 310018 , China
| |
Collapse
|
26
|
Fan B, Bhattacharya A, Bandaru PR. Enhanced voltage generation through electrolyte flow on liquid-filled surfaces. Nat Commun 2018; 9:4050. [PMID: 30283012 PMCID: PMC6170469 DOI: 10.1038/s41467-018-06297-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 08/28/2018] [Indexed: 11/10/2022] Open
Abstract
The generation of electrical voltage through the flow of an electrolyte over a charged surface may be used for energy transduction. Here, we show that enhanced electrical potential differences (i.e., streaming potential) may be obtained through the flow of salt water on liquid-filled surfaces that are infiltrated with a lower dielectric constant liquid, such as oil, to harness electrolyte slip and associated surface charge. A record-high figure of merit, in terms of the voltage generated per unit applied pressure, of 0.043 mV Pa−1 is obtained through the use of the liquid-filled surfaces. In comparison with air-filled surfaces, the figure of merit associated with the liquid-filled surface increases by a factor of 1.4. These results lay the basis for innovative surface charge engineering methodology for the study of electrokinetic phenomena at the microscale, with possible application in new electrical power sources. Superhydrophobic surfaces are expected to increase streaming potential, but are hindered by the presence of air. Here the authors enhance streaming potential by flowing high-dielectric salt water over liquid-filled surfaces infiltrated with low-dielectric liquid, harnessing electric slip and surface charge.
Collapse
Affiliation(s)
- B Fan
- Department of Mechanical Engineering, University of California, San Diego, La Jolla, 92093-0411, CA, USA
| | - A Bhattacharya
- Department of Mechanical Engineering, University of California, San Diego, La Jolla, 92093-0411, CA, USA
| | - P R Bandaru
- Department of Mechanical Engineering, University of California, San Diego, La Jolla, 92093-0411, CA, USA. .,Program in Materials Science, University of California, San Diego, La Jolla, 92093-0411, CA, USA.
| |
Collapse
|
27
|
Canbazoglu FM, Fan B, Vemuri K, Bandaru PR. Enhanced Solar Thermal Evaporation of Ethanol-Water Mixtures, through the Use of Porous Media. Langmuir 2018; 34:10523-10528. [PMID: 30130406 DOI: 10.1021/acs.langmuir.8b01731] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A significant enhancement of solar irradiation induced evaporation of water, and ethanol-water mixtures, through the use of carbon foam based porous media, is demonstrated. A relationship between the consequent rate of mass loss, with respect to the equilibrium vapor pressure, dynamic viscosity, surface tension, and density, was developed to explain experimental observations. The evaporative heat loss was parametrized through two convective heat transfer coefficients-one related to the surface and another related to the vapor external to the surface. The work promotes a better understanding of thermal processes in binary liquid mixtures with applications ranging from phase separation to distillation and desalination.
Collapse
Affiliation(s)
- F M Canbazoglu
- Department of Mechanical Engineering , University of California, San Diego , La Jolla , California , United States
| | - B Fan
- Department of Mechanical Engineering , University of California, San Diego , La Jolla , California , United States
| | - K Vemuri
- Department of Mechanical Engineering , University of California, San Diego , La Jolla , California , United States
| | - P R Bandaru
- Department of Mechanical Engineering , University of California, San Diego , La Jolla , California , United States
| |
Collapse
|
28
|
Liu K, Zhou Y, Xie W, Gu Z, Jin Y, Ye X, Chen X, Fan B, Wang H, Cui Y. Handgrip exercise reduces peripherally-inserted central catheter-related venous thrombosis in patients with solid cancers: A randomized controlled trial. Int J Nurs Stud 2018; 86:99-106. [PMID: 29982097 DOI: 10.1016/j.ijnurstu.2018.06.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 10/06/2017] [Revised: 06/02/2018] [Accepted: 06/06/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Peripherally-inserted central catheter-related venous thrombosis has serious complications including the loss of vascular access, recurrent venous thrombosis, and post-thrombotic syndrome. Current guidelines recommend non-pharmacological strategies to prevent peripherally-inserted central catheter-related venous thrombosis. There is little evidence for the effectiveness of handgrip exercise on the prevention of peripherally-inserted central catheter-related venous thrombosis. OBJECTIVES To examine the effectiveness of handgrip exercise using an elastic ball to prevent peripherally-inserted central catheter-related venous thrombosis in patients with solid cancers. DESIGN A randomized controlled trial. SETTINGS One teaching hospital in Nanjing, China. PARTICIPANTS In total, 120 subjects with solid cancers were eligible; each had a new peripherally-inserted central catheter. They were recruited and randomly assigned into two exercise groups and one control group. METHODS Subjects from exercise groups 1 and 2 performed a 3-week, 25-repetition handgrip exercise, 3 and 6 times daily, respectively. The control group subjects performed a gentle limb exercise with no frequency and intensity requirements. Ultrasound was used to detect venous thrombosis development and examine axillary vein blood flow over the three points. RESULTS There were 32 cases of peripherally-inserted central catheter-related venous thrombosis detected. Two venous thrombosis cases in the control group were symptomatic, but all venous thrombosis cases in the exercise groups were asymptomatic. All venous thromboses were partial. There were significant differences in the incidence of venous thrombosis among the three groups (χ2 = 12.813, p = 0.002; χ2 = 9.340, p = 0.009; χ2 = 11.480, p = 0.003; and χ2 = 10.534, p = 0.005, respectively) at days 2, 3 and 21. The incidence of venous thrombosis in the two exercise groups was lower than that in the control group over the 3 time points (all, p < 0.05). The between-group effects and interaction effect in vein maximum velocity and time-mean flow velocity showed significant differences (F = 4.180, p = 0.025; F = 4.010, p = 0.045; and F = 2.928, p = 0.025) at days 2, 3, and 21, respectively. The axillary vein blood flow parameters in the control group were lower than those in the two exercise groups at day 21 (all, p < 0.05). However, no significant differences occurred in the incidence of venous thrombosis and axillary vein blood flow parameters between the two exercise groups. CONCLUSION Handgrip exercise using an elastic ball daily for three weeks could decrease the incidence of peripherally-inserted central catheter-related venous thrombosis. The method is simple, with no negative consequence reported. Further studies are required to confirm this conclusion and to explore the optimal frequency of handgrip exercise.
Collapse
Affiliation(s)
- Kouying Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; School of Nursing, Nanjing Medical University, Nanjing, China.
| | - Ye Zhou
- School of Nursing, Nanjing Medical University, Nanjing, China; Chinese Nursing Association, Beijing, China.
| | - Weiping Xie
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Zejuan Gu
- Department of Nursing, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Yu Jin
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Xinhua Ye
- Department of Ultrasonography, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Xuesong Chen
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Boqiang Fan
- Department of Oncology Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Hong Wang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Yan Cui
- School of Nursing, Nanjing Medical University, Nanjing, China.
| |
Collapse
|
29
|
Wang N, Ma H, Cheng C, Xing C, Fan B. FP388COMPARISONS OF MICROWAVE ABLATION TREATMENT IN PATIENTS WITH SECONDARY AND PRIMARY HYPERPARATHYROIDISM. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.fp388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ningning Wang
- Nephrology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Haoyang Ma
- Nephrology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chen Cheng
- Nephrology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Changying Xing
- Nephrology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Boqiang Fan
- Oncology Department, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
30
|
Kazemi L, Fan B, Sommer M, George K, Stranix-Chibanda L, Shepherd J. Tracking of Spine BMD (Bone Mineral Density) in Infants Exposed to TDF (Tenofovir Disproxil Fumarate) Medication in Utero and/or during Breast Feeding. J Clin Densitom 2018. [DOI: 10.1016/j.jocd.2017.10.033] [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: 11/16/2022]
|
31
|
Katzman WB, Vittinghoff E, Lin F, Schafer A, Long RK, Wong S, Gladin A, Fan B, Allaire B, Kado DM, Lane NE. Targeted spine strengthening exercise and posture training program to reduce hyperkyphosis in older adults: results from the study of hyperkyphosis, exercise, and function (SHEAF) randomized controlled trial. Osteoporos Int 2017; 28:2831-2841. [PMID: 28689306 PMCID: PMC5873977 DOI: 10.1007/s00198-017-4109-x] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 05/31/2017] [Indexed: 01/01/2023]
Abstract
A 6-month randomized controlled trial of spine-strengthening exercise and posture training reduced both radiographic and clinical measures of kyphosis. Participants receiving the intervention improved self-image and satisfaction with their appearance. Results suggest that spine-strengthening exercise and postural training may be an effective treatment option for older adults with hyperkyphosis. INTRODUCTION The purpose of the present study is to determine in a randomized controlled trial whether spine-strengthening exercises improve Cobb angle of kyphosis in community-dwelling older adults. METHODS We recruited adults ≥60 years with kyphosis ≥40° and enrolled 99 participants (71 women, 28 men), mean age 70.6 ± 0.6 years, range 60-88, with baseline Cobb angle 57.4 ± 12.5°. The intervention included group spine-strengthening exercise and postural training, delivered by a physical therapist, 1-h, three times weekly for 6 months. Controls received four group health education meetings. The primary outcome was change in the gold standard Cobb angle of kyphosis measured from standing lateral spine radiographs. Secondary outcomes included change in kyphometer-measured kyphosis, physical function (modified Physical Performance Test, gait speed, Timed Up and Go, Timed Loaded Standing, 6-Min Walk), and health-related quality of life (HRQoL) (PROMIS global health and physical function indexes, SRS-30 self-image domain). ANCOVA was used to assess treatment effects on change from baseline to 6 months in all outcomes. RESULTS There was a -3.0° (95% CI -5.2, -0.8) between-group difference in change in Cobb angle, p = 0.009, favoring the intervention and approximating the magnitude of change from an incident vertebral fracture. Kyphometer-measured kyphosis (p = 0.03) and SRS-30 self-esteem (p < 0.001) showed favorable between-group differences in change, with no group differences in physical function or additional HRQoL outcomes, p > 0.05. CONCLUSIONS Spine-strengthening exercise and posture training over 6 months reduced kyphosis compared to control. Our randomized controlled trial results suggest that a targeted kyphosis-specific exercise program may be an effective treatment option for older adults with hyperkyphosis. TRIAL REGISTRATION NUMBER AND NAME OF TRIAL REGISTER ClinicalTrials.gov; identifier NCT01751685.
Collapse
Affiliation(s)
- W B Katzman
- University of California, 1500 Owens Street, San Francisco, CA, 94158, USA.
| | - E Vittinghoff
- University of California, 550 16th. Street, San Francisco, CA, 94158, USA
| | - F Lin
- University of California, 550 16th. Street, San Francisco, CA, 94158, USA
| | - A Schafer
- University of California, 4150 Clement St, San Francisco, CA, 94121, USA
- San Francisco Veterans Affairs Health Care System, 4150 Clement St, San Francisco, CA, 94121, USA
| | - R K Long
- University of California, 550 16th. Street, San Francisco, CA, 94143, USA
| | - S Wong
- University of California, 1500 Owens Street, San Francisco, CA, 94158, USA
| | - A Gladin
- Kaiser Permanente Northern CA, San Francisco Medical Center, 1635 Divisadero Street, Suite 300, San Francisco, CA, 94115, USA
| | - B Fan
- University of California, 400 Parnassus Avenue, San Francisco, CA, 94117, USA
| | - B Allaire
- Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA, 02215, USA
| | - D M Kado
- University of California, 9500 Gilman Dr, La Jolla, CA, 92093, USA
| | - N E Lane
- University of California, 4625 Second Avenue, Suite 2000, Sacramento, CA, 95616, USA
| |
Collapse
|
32
|
Parrot D, Oppong-Danquah E, Fan B, Tasdemir D. Molecular Networking for Identification of Enhanced Chemical Inventories of Baltic Marine Fungi. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- D Parrot
- GEOMAR Centre for Marine Biotechnology, Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, Kiel, Germany
| | - E Oppong-Danquah
- GEOMAR Centre for Marine Biotechnology, Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, Kiel, Germany
| | - B Fan
- GEOMAR Centre for Marine Biotechnology, Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, Kiel, Germany
| | - D Tasdemir
- GEOMAR Centre for Marine Biotechnology, Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, Kiel, Germany
| |
Collapse
|
33
|
Li X, Yang S, Dong K, Tang Z, Li K, Fan B, Wang Z, Liu B. Identification of positive selection signatures in pigs by comparing linkage disequilibrium variances. Anim Genet 2017; 48:600-605. [DOI: 10.1111/age.12574] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2017] [Indexed: 11/26/2022]
Affiliation(s)
- X. Li
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education; Key Laboratory of Pig Genetics and Breeding of Ministry of Agriculture; Huazhong Agricultural University; Wuhan Hubei 430070 China
- The Cooperative Innovation Center for Sustainable Pig Production; Wuhan Hubei 430070 China
- Department of Agricultural, Food and Nutritional Science; University of Alberta; Edmonton AB T6G 2P5 Canada
| | - S. Yang
- College of Animal Science and Technology; Zhejiang A&F University; Lin'an Zhejiang 311300 China
| | - K. Dong
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of Ministry of Agriculture of China; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - Z. Tang
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of Ministry of Agriculture of China; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - K. Li
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of Ministry of Agriculture of China; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - B. Fan
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education; Key Laboratory of Pig Genetics and Breeding of Ministry of Agriculture; Huazhong Agricultural University; Wuhan Hubei 430070 China
| | - Z. Wang
- Department of Agricultural, Food and Nutritional Science; University of Alberta; Edmonton AB T6G 2P5 Canada
| | - B. Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education; Key Laboratory of Pig Genetics and Breeding of Ministry of Agriculture; Huazhong Agricultural University; Wuhan Hubei 430070 China
- The Cooperative Innovation Center for Sustainable Pig Production; Wuhan Hubei 430070 China
| |
Collapse
|
34
|
Cosman F, Krege JH, Looker AC, Schousboe JT, Fan B, Sarafrazi Isfahani N, Shepherd JA, Krohn KD, Steiger P, Wilson KE, Genant HK. Spine fracture prevalence in a nationally representative sample of US women and men aged ≥40 years: results from the National Health and Nutrition Examination Survey (NHANES) 2013-2014. Osteoporos Int 2017; 28:1857-1866. [PMID: 28175980 PMCID: PMC7422504 DOI: 10.1007/s00198-017-3948-9] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 01/26/2017] [Indexed: 12/13/2022]
Abstract
UNLABELLED Spine fracture prevalence is similar in men and women, increasing from <5 % in those <60 to 11 % in those 70-79 and 18 % in those ≥80 years. Prevalence was higher with age, lower bone mineral density (BMD), and in those meeting criteria for spine imaging. Most subjects with spine fractures were unaware of them. INTRODUCTION Spine fractures have substantial medical significance but are seldom recognized. This study collected contemporary nationally representative spine fracture prevalence data. METHODS Cross-sectional analysis of 3330 US adults aged ≥40 years participating in NHANES 2013-2014 with evaluable Vertebral Fracture Assessment (VFA). VFA was graded by semiquantitative measurement. BMD and an osteoporosis questionnaire were collected. RESULTS Overall spine fracture prevalence was 5.4 % and similar in men and women. Prevalence increased with age from <5 % in those <60 to 11 % in those 70-79 and 18 % in those ≥80 years. Fractures were more common in non-Hispanic whites and in people with lower body mass index and BMD. Among subjects with spine fracture, 26 % met BMD criteria for osteoporosis. Prevalence was higher in subjects who met National Osteoporosis Foundation (NOF) criteria for spine imaging (14 vs 4.7 %, P < 0.001). Only 8 % of people with a spine fracture diagnosed by VFA had a self-reported fracture, and among those who self-reported a spine fracture, only 21 % were diagnosed with fracture by VFA. CONCLUSION Spine fracture prevalence is similar in women and men and increases with age and lower BMD, although most subjects with spine fracture do not meet BMD criteria for osteoporosis. Since most (>90 %) individuals were unaware of their spine fractures, lateral spine imaging is needed to identify these women and men. Spine fracture prevalence was threefold higher in individuals meeting NOF criteria for spine imaging (∼1 in 7 undergoing VFA). Identifying spine fractures as part of comprehensive risk assessment may improve clinical decision making.
Collapse
Affiliation(s)
- F Cosman
- Regional Bone Center, Helen Hayes Hospital, Route 9W, West Haverstraw, NY, 10993, USA.
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA.
| | - J H Krege
- Eli Lilly and Company, Indianapolis, IN, USA
| | - A C Looker
- National Center for Health Statistics, Centers for Disease Control and Prevention, Hyattsville, MD, USA
| | - J T Schousboe
- HealthPartners Institute and Park Nicollet Clinic, HealthPartners, Minneapolis, MN, USA
| | - B Fan
- Department of Radiology, University of California, San Francisco, CA, USA
| | - N Sarafrazi Isfahani
- National Center for Health Statistics, Centers for Disease Control and Prevention, Hyattsville, MD, USA
| | - J A Shepherd
- Department of Radiology, University of California, San Francisco, CA, USA
| | - K D Krohn
- Eli Lilly and Company, Indianapolis, IN, USA
| | - P Steiger
- Parexel International, Waltham, MA, USA
| | | | - H K Genant
- Department of Radiology, University of California, San Francisco, CA, USA
| |
Collapse
|
35
|
Looker AC, Sarafrazi Isfahani N, Fan B, Shepherd JA. Trends in osteoporosis and low bone mass in older US adults, 2005-2006 through 2013-2014. Osteoporos Int 2017; 28:1979-1988. [PMID: 28315954 PMCID: PMC7891684 DOI: 10.1007/s00198-017-3996-1] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 02/28/2017] [Indexed: 11/25/2022]
Abstract
This study examined trends in osteoporosis and low bone mass in older US adults between 2005 and 2014 using bone mineral density (BMD) data from the National Health and Nutrition Examination Survey (NHANES). Osteoporosis and low bone mass appear to have increased at the femur neck but not at the lumbar spine during this period. INTRODUCTION Recent preliminary data from Medicare suggest that the decline in hip fracture incidence among older US adults may have plateaued in 2013-2014, but comparable data on BMD trends for this time period are currently lacking. This study examined trends in the prevalence of osteoporosis and low bone mass since 2005 using BMD data from NHANES. The present study also updated prevalence estimates to 2013-2014 and included estimates for non-Hispanic Asians. METHODS Femur neck and lumbar spine BMD by DXA were available for 7954 adults aged 50 years and older from four NHANES survey cycles between 2005-2006 and 2013-2014. RESULTS Significant trends (quadratic or linear) were observed for the femur neck (mean T-score and osteoporosis in both sexes; low bone mass in women) but not for the lumbar spine. The trend in femur neck status was somewhat U-shaped, with prevalences being most consistently significantly higher (by 1.1-6.6 percentage points) in 2013-2014 than 2007-2008. Adjusting for changes in body mass index, smoking, milk intake, and physician's diagnosis of osteoporosis between surveys did not change femur neck trends. In 2013-2014, the percent of older adults with osteoporosis was 6% at the femur neck, 8% at the lumbar spine, and 11% at either site. CONCLUSIONS There was some evidence of a decline in femur neck BMD between 2005-2006 and 2013-2014, but not in lumbar spine BMD. Changes in the risk factors that could be examined did not explain the femur neck BMD trends.
Collapse
Affiliation(s)
- A C Looker
- Division of Health and Nutrition Examination Surveys, National Center for Health Statistics, Centers for Disease Control and Prevention, 3311 Toledo Road, Room 3416, Hyattsville, MD, 20782, USA.
| | - N Sarafrazi Isfahani
- Division of Health and Nutrition Examination Surveys, National Center for Health Statistics, Centers for Disease Control and Prevention, 3311 Toledo Road, Room 3416, Hyattsville, MD, 20782, USA
| | - B Fan
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - J A Shepherd
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| |
Collapse
|
36
|
Abstract
BACKGROUND Sepsis-induced cardiomyopathy is a well-known cause of mortality. Recent evidence has highlighted the important role of myricetin in anti-inflammation and anti-oxidative stress. However, little is known about its effect on endotoxin-induced cardiomyopathy. We examined the effect of myricetin on lipopolysaccharide (LPS)-induced cardiomyocyte injury and the underlying mechanisms in vitro. METHODS mRNA expression of interleukin (IL)-1beta, IL-6, and tumor necrosis factor (TNF)-alpha was examined via reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Protein expression levels of NF-κB/p65, IκB, IL-1beta, IL-6, and TNF-alpha were assesses via Western blotting. Immunofluorescence (IF) was used to determine the nuclear translocation of p65. Commercial kits were employed to detect the level of oxidative markers and to quantify NF-κB/p65 both in the cytoplasm and the nucleus. Finally, terminal deoxy-nucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) was performed to evaluate the apoptosis of H9c2 cardiomyocytes. RESULTS The results showed that myricetin blunted the overexpression of IL-1beta, IL-6, and TNF-alpha markedly by inhibiting the NF-κB/P65 signaling pathway. Furthermore, myricetin treatment led to the downregulation of reactive oxygen species (ROS) accompanied by increased expression of superoxide dismutase and glutathione peroxidase. TUNEL-positive nuclei were rarely detected following myricetin treatment. CONCLUSION Our findings suggest that myricetin is a valuable protective agent against endotoxin-induced early inflammatory responses in H9c2 cardiomyocytes, which involves regulation of ROS and the IκB/NF-κb signaling pathway.
Collapse
Affiliation(s)
- S Chen
- School of Pharmacy, Hubei University of Science and Technology, 437100, Hubei Xianning, China
| | - B Fan
- School of Pharmacy, Hubei University of Science and Technology, 437100, Hubei Xianning, China.
| |
Collapse
|
37
|
Fan B, Yin YS, Sun G, Zhu LY, Liu W, Pi XE, Fei DB, Peng LH, Wang X, Yang YS. [Effects of different carbohydrates on the simulation of human intestinal bacterial flora with in vitro culture]. Zhonghua Nei Ke Za Zhi 2017; 55:381-5. [PMID: 27143189 DOI: 10.3760/cma.j.issn.0578-1426.2016.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the optimal growth condition of human fecal bacterial flora in vitro by comparing the effect of different carbohydrates as cultural media. METHODS Three fecal samples (1, 2, 3) were collected and inoculated into a single-stage chemostat system, in which starch medium (VI) and starch polysaccharide medium(XP) were used. Samples were collected for bacterial genomic DNA extraction and polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) analysis. Bacterial composition and short chain fatty acid (SCFA) were then analyzed. RESULTS The single stage chemostat system reached steady after operating 8 days, when evaluated by the PCR-DGGE. Bacterial 16s rRNA high-throughput sequencing showed that the intestinal bacteria of these three volunteers was mainly composed of four bacterial phyla, namely, Bacteroidetes, Firmicutes, Proteobacteria and Actinobacteria. When the influence of bacterial abundance was considered, the similarity of bacterial composition between the original fecal samples to the harvested flora after culture was 0.847, 0.825, 0.968 in VI medium and 0.927, 0.926, 0.836 in XP medium, respectively. The similarity was decreased to 0.553, 0.580, 0.623 with VI medium and 0.617, 0.520, 0.574 with XP medium, when the number of bacterial species was considered. The variation of host individual also influenced the simulation. VI medium favored fecal sample 3, while XP medium more benefited sample 1 and 2. Bacteroides and Lachnospiraceae_incertae_sedis grew in both VI and XP medium. However, some species were only detected in VI medium and some were specifically found in the XP medium. The SCFA concentration in fermenters was 15-35 mmol/L, mainly propionate and butyrate. CONCLUSIONS The chemostat system works for stimulating human gut bacterial flora in vitro. The bacterial composition is affected by different carbohydrate in the culture medium yet with close simulation higher than 80%.
Collapse
Affiliation(s)
| | - Y S Yin
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | | | | | | | | | | | | | | | - Y S Yang
- Department of Gastroenterology and Hepatology, Chinese PLA General Hospital, Beijing 100853, China
| |
Collapse
|
38
|
Che L, Fan B, Pilo MG, Xu Z, Liu Y, Cigliano A, Cossu A, Palmieri G, Pascale RM, Porcu A, Vidili G, Serra M, Dombrowski F, Ribback S, Calvisi DF, Chen X. Jagged 1 is a major Notch ligand along cholangiocarcinoma development in mice and humans. Oncogenesis 2016; 5:e274. [PMID: 27918553 PMCID: PMC5177771 DOI: 10.1038/oncsis.2016.73] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/26/2016] [Accepted: 10/10/2016] [Indexed: 02/07/2023] Open
Abstract
Intrahepatic cholangiocarcinoma (ICC) is a rare yet deadly malignancy with limited treatment options. Activation of the Notch signalling cascade has been implicated in cholangiocarcinogenesis. However, while several studies focused on the Notch receptors required for ICC development, little is known about the upstream inducers responsible for their activation. Here, we show that the Jagged 1 (Jag1) ligand is almost ubiquitously upregulated in human ICC samples when compared with corresponding non-tumorous counterparts. Furthermore, we found that while overexpression of Jag1 alone does not lead to liver tumour development, overexpression of Jag1 synergizes with activated AKT signalling to promote liver carcinogenesis in AKT/Jag1 mice. Histologically, tumours consisted exclusively of ICC, with hepatocellular tumours not occurring in AKT/Jag1 mice. Furthermore, tumours from AKT/Jag1 mice exhibited extensive desmoplastic reaction, an important feature of human ICC. At the molecular level, we found that both AKT/mTOR and Notch cascades are activated in AKT/Jag1 ICC tissues, and that the Notch signalling is necessary for ICC development in AKT/Jag1 mice. In human ICC cell lines, silencing of Jag1 via specific small interfering RNA reduces proliferation and increases apoptosis. Finally, combined inhibition of AKT and Notch pathways is highly detrimental for the in vitro growth of ICC cell lines. In summary, our study demonstrates that Jag1 is an important upstream inducer of the Notch signalling in human and mouse ICC. Targeting Jag1 might represent a novel therapeutic strategy for the treatment of this deadly disease.
Collapse
Affiliation(s)
- L Che
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China.,Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, CA, USA
| | - B Fan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China.,Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, CA, USA
| | - M G Pilo
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - Z Xu
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, CA, USA.,Department of Gastroenterology, Guizhou Provincial People's Hospital, The Affiliated People's Hospital of Guizhou Medical University, Guiyang, China
| | - Y Liu
- Department of Gastroenterology, 307 Hospital of PLA, Beijing, China
| | - A Cigliano
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - A Cossu
- Unit of Pathology, Azienda Ospedaliero Universitaria Sassari, Sassari, Italy
| | - G Palmieri
- Institute of Biomolecular Chemistry, National Research Council, Sassari, Italy
| | - R M Pascale
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - A Porcu
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - G Vidili
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - M Serra
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - F Dombrowski
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - S Ribback
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - D F Calvisi
- Institute of Pathology, University of Greifswald, Greifswald, Germany.,Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - X Chen
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, CA, USA
| |
Collapse
|
39
|
Hu M, Fan B, Ma J, Xue S, Zhao S, Fu Z, Yu J. FLT Positron Emission Tomography/Computed Tomography for Survival Prediction in Patients With High-Grade Glioma Treated With Postoperative Chemoradiation Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.853] [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: 11/16/2022]
|
40
|
Leghari RA, Fan B, Wang H, Bai J, Zhang L, Abro SH, Jiang P. Full-length genome sequencing analysis of avian infectious bronchitis virus isolate associated with nephropathogenic infection. Poult Sci 2016; 95:2921-2929. [PMID: 27566728 PMCID: PMC7127410 DOI: 10.3382/ps/pew259] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 04/10/2016] [Accepted: 06/26/2016] [Indexed: 11/20/2022] Open
Abstract
Infectious bronchitis virus (IBV) produces infectious bronchitis (IB) disease in poultry worldwide. In spite of proper vaccinations against the IBV, new IBV strains are continually emerging worldwide. In this study, a new highly virulent nephropathogenic IBV strain named CK/CH/XDC-2/2013 was identified from a vaccinated flock with clinical signs of IB in the Jiangsu province of China. The full-length genome sequence of the isolate was 27,714 nucleotides long, and the genome was organized similarly to classical IBV strains. Minimum divergence, phylogenetic analysis, and distance matrix of the genome showed that the CK/CH/XDC-2/2013 isolate had the highest similarity to the IBV BJ strain. The spike glycoprotein (S) gene had the greatest similarity to the nephropathogenic BJ strain and showed an 8 amino acid insertion (YSNGNSDV) at 73 to 80 sites and 3 amino acid deletion at sites 126 to 128 compared to the IBV vaccine strains. A recombination analysis of the S gene showed that the new isolate evolved from the IBV BJ strain and the KM91 vaccine strain. An animal challenge experiment showed a mortality of 60 to 80% in early-age chickens by different inoculation routes. Pathological examinations of the kidneys revealed inflammation, distention with uric acid deposits, and tubular degeneration. It indicated that the CK/CH/XDC-2/2013 isolate has robust kidney tissue tropism, and new nephropathogenic IBV strains are continuously evolving in China.
Collapse
Affiliation(s)
- R A Leghari
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.,Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University Tandojam, 70050, Pakistan
| | - B Fan
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - H Wang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - J Bai
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - L Zhang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - S H Abro
- Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University Tandojam, 70050, Pakistan
| | - P Jiang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| |
Collapse
|
41
|
Looker AC, Sarafrazi Isfahani N, Fan B, Shepherd JA. Trabecular bone scores and lumbar spine bone mineral density of US adults: comparison of relationships with demographic and body size variables. Osteoporos Int 2016; 27:2467-75. [PMID: 26952009 PMCID: PMC7593898 DOI: 10.1007/s00198-016-3550-6] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 02/22/2016] [Indexed: 12/12/2022]
Abstract
UNLABELLED This study examines demographic patterns and body size relationships in trabecular bone score and lumbar spine BMD of US adults from NHANES 2005-2008. INTRODUCTION Limited data exist on demographic and body size relationships for trabecular bone score (TBS), a new variable derived from bone texture analysis of lumbar spine dual-energy X-ray absorptiometry (DXA) scans. This study compares demographic patterns and correlations with body size (body mass index (BMI), weight, waist circumference, total body fat, trunk fat, trunk lean) between TBS and lumbar spine bone mineral density (LSBMD) for adults age ≥20 years from the National Health and Nutrition Examination Survey (NHANES) 2005-2008 with BMI in the optimal range for TBS (15-37 kg/m(2)). METHODS LSBMD, TBS, body fat, and lean were obtained by DXA. Weight, height, and waist circumference were measured. BMI was calculated from height and weight. RESULTS Sex differences in TBS varied by age and race/ethnicity (p sex X age interaction and p sex X race/ethnicity interaction < 0.001). In most of the nine demographic subgroups examined, TBS did not differ by sex (four subgroups) or was significantly higher in women (three subgroups). TBS differences by race/ethnicity were inconsistent in men; in women, non-Hispanic whites (NHWs) had higher TBS than non-Hispanic blacks (NHBs) or Mexican Americans (MAs) in all age groups. In contrast, LSBMD was either significantly higher in men (five subgroups) or did not differ by sex (four subgroups). Race/ethnic differences in LSBMD were consistent across age and sex (NHB > NHW > MA). All body size variables were negatively related to TBS but positively related to LSBMD. CONCLUSIONS Demographic patterns and body size relationships differed between TBS and LSBMD.
Collapse
Affiliation(s)
- A C Looker
- Division of Health and Nutrition Examination Surveys, National Center for Health Statistics, Centers for Disease Control and Prevention, 3311 Toledo Road, Hyattsville, MD, 20782, USA.
| | - N Sarafrazi Isfahani
- Division of Health and Nutrition Examination Surveys, National Center for Health Statistics, Centers for Disease Control and Prevention, 3311 Toledo Road, Hyattsville, MD, 20782, USA
| | - B Fan
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - J A Shepherd
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| |
Collapse
|
42
|
|
43
|
Hu C, Chan A, Gao L, Ahn MJ, Cohen E, Ang MK, Cheng Y, Hu Q, Kim SB, Li P, Sun Y, Fan B, Cheng G, Ehrnrooth E, Wang CH. 339TiP Phase III study of afatinib vs placebo as adjuvant therapy after chemo-radiotherapy (CRT) in primary unresected patients with locoregionally advanced (LA) head and neck squamous cell carcinoma (HNSCC) in Asia: LUX-Head & Neck 4 (LUX-H&N4). Ann Oncol 2015. [DOI: 10.1093/annonc/mdv527.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
44
|
Zhou S, Fan B, Migliore M, Yu Y. Learning experience facilitates sparse coding of new odors in a large-scale olfactory bulb model. BMC Neurosci 2015. [PMCID: PMC4698994 DOI: 10.1186/1471-2202-16-s1-p297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
45
|
Zhang W, Fan B, Zheng P, Yu Y. Axon initial segment potassium channel density in cortical neurons. BMC Neurosci 2015. [PMCID: PMC4699005 DOI: 10.1186/1471-2202-16-s1-p295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
46
|
Abstract
The objective of this study was to investigate the expression changes of transforming growth factor β1 (TGF-β1) and Serpine 1 in rats with traumatic deep vein thrombosis (DVT). In total, 60 male Sprague Dawley rats were divided into model (N = 50) and control groups (Group A, N = 10). From the model group, 10 rats were randomly selected after modeling as the pre-thrombosis group (Group B, N = 10), and the remaining 40 rats in the model group were divided into the thrombosis (Group C) and no thrombosis groups (Group D) depending on whether DVT was apparent at 25 h after modeling. All rats were dissected and the total RNAs of the femoral veins were extracted. TGF-β1 and Serpine 1 expression was detected by microarray and polymerase chain reaction (PCR) analyses, and the related signal pathways were analyzed using bioinformatic analysis. Of the 40 rats, DVT was evident in 23, yielding an incidence rate of 57.50%. TGF-β1 and Serpine 1 expression increased significantly at 2.5 h after modeling, while DVT began to form at 25 h after modeling. Both PCR and microarray analysis showed that TGF-β1 and Serpine 1 expression levels were significantly higher in the thrombosis group than in the other groups (P < 0.05). Bioinformatic analysis indicated that TGF-β1 was an upstream regulatory gene of Serpine 1 and could induce Serpine 1 overexpression. Together, these results suggested that TGF-β1 and Serpine 1 overexpression might play an important role in DVT formation and have predictive values.
Collapse
Affiliation(s)
- J W Mo
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - D F Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - G L Ji
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - X Z Liu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - B Fan
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China
| |
Collapse
|
47
|
Chen LX, Hu DJ, Lam SC, Ge L, Wu D, Zhao J, Long ZR, Yang WJ, Fan B, Li SP. Comparison of antioxidant activities of different parts from snow chrysanthemum (Coreopsis tinctoria Nutt.) and identification of their natural antioxidants using high performance liquid chromatography coupled with diode array detection and mass spectrometry and 2,2'-azinobis(3-ethylbenzthiazoline-sulfonic acid)diammonium salt-based assay. J Chromatogr A 2015; 1428:134-42. [PMID: 26521095 DOI: 10.1016/j.chroma.2015.10.037] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [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: 05/18/2015] [Revised: 10/10/2015] [Accepted: 10/14/2015] [Indexed: 11/19/2022]
Abstract
Snow chrysanthemum (Coreopsis tinctoria Nutt.), a world-widely well-known flower tea material, has attracted more and more attention because of its beneficial health effects such as antioxidant activity and special flavor. In this study, a high performance liquid chromatography coupled with diode array detection and mass spectrometry (HPLC-DAD-MS) and 2,2'-azinobis(3-ethylbenzthiazoline-sulfonic acid)diammonium salt (ABTS) based assay was employed for comparison and identification of antioxidants in different samples of snow chrysanthemum. The results showed that snow chrysanthemum flowers possessed the highest while stems presented the lowest antioxidant capacities. Fourteen detected peaks with antioxidant activity were temporarily identified as 3,4',5,6,7-pentahydroxyflavanone-O-hexoside, chlorogenic acid, 2R-3',4',8-trihydroxyflavanone-7-O-glucoside, flavanomarein, flavanocorepsin, flavanokanin, quercetagitin-7-O-glucoside, 3',5,5',7-tetrahydroxyflavanone-O-hexoside, marein, maritimein, 1,3-dicaffeoylquinic acid, coreopsin, okanin and acetyl-marein by comparing their UV spectra, retention times and MS data with standards or literature data. Antioxidants existed in snow chrysanthemum are quite different from those reported in Chrysanthemum morifolium, a well-known traditional beverage in China, which indicated that snow chrysanthemum may be a promising herbal tea material with obvious antioxidant activity.
Collapse
Affiliation(s)
- L X Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao
| | - D J Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao
| | - S C Lam
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao
| | - L Ge
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao
| | - D Wu
- China Science and Technology Exchange Center, Beijing 100045, China
| | - J Zhao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao.
| | - Z R Long
- Xinjiang Uygur Autonomous Region Product Quality Supervision and Inspection Institute, Urumqi 830011, China
| | - W J Yang
- Xinjiang Uygur Autonomous Region Product Quality Supervision and Inspection Institute, Urumqi 830011, China
| | - B Fan
- Urumqi Jiangqi Agriculture Development Co. Ltd., Urumqi 830011, China
| | - S P Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao.
| |
Collapse
|
48
|
Abstract
Optogenetics is an exciting new technology that allows targetable fast control and readout of specific neural populations in complex brain circuits. With the rapid development of light-sensitive microbial opsins, substantial gains in understanding the causal relationships between neural activity and behavior in both healthy and diseased brains have been achieved during the last decade. However, the intricate and complex interactions between different neural populations in mammalian brains require novel, implantable, neural interfaces that are capable of manipulating and probing targeted neurons at multiple sites and with high spatiotemporal resolution. Advanced microtechnology has offered the highest potential to meet these demands of optogenetic applications. In this paper, we review a variety of miniaturized optogenetic neural implants developed in recent years, based on different light sources, including lasers, laser diodes, and light-emitting diodes. We then summarize the specifications of these microimplants and their related microfabrication approaches and discuss the major challenges of current techniques and the vision for the future of the field.
Collapse
Affiliation(s)
- B Fan
- Electrical and Computer Engineering Department, Michigan State University, East Lansing, MI 48824, USA.
| | | |
Collapse
|
49
|
Wen Y, Lin X, Fan B, Ranjith-Kumar CT, Kao CC. The juxtamembrane sequence of the Hepatitis C virus polymerase can affect RNA synthesis and inhibition by allosteric polymerase inhibitors. Virus Genes 2015; 51:1-11. [PMID: 25895103 DOI: 10.1007/s11262-015-1199-4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 04/09/2015] [Indexed: 12/21/2022]
Abstract
The Hepatitis C virus (HCV) RNA-dependent RNA polymerase (RdRp), nonstructural protein 5B (NS5B), is anchored in the membrane through a C-terminal helix. A sequence of ca. 12 residues that connects the catalytically competent portion of the RdRp and the C-terminal helix, the juxtamembrane sequence (JMS), has a poorly defined role in RdRp function in a large part since it is translated from a cis-acting RNA element (CRE) that is essential for HCV replication. Using a HCV replicon that transposed a second copy of CRE to the 3' UTR of the HCV replicon, we demonstrate that amino acid substitutions in the JMS were detrimental for HCV replicon replication. Substitutions in the JMS also resulted in a defect in de novo-initiated RNAs synthesis in vitro and in a cell-based reporter assay. A nonnucleoside inhibitor of the NS5B that binds to the catalytic pocket was less potent in inhibiting NS5B in the presence of JMS mutations. The JMS mutants exhibit reduced stability in thermodenaturation assays, suggesting that the JMS helps confer a more stable conformation to NS5B that could impact RNA synthesis.
Collapse
Affiliation(s)
- Y Wen
- Department of Molecular and Cellular Biochemistry, Indiana University, Bloomington, IN, 47405, USA
| | | | | | | | | |
Collapse
|
50
|
Mo J, Zhang DF, Ji G, Liu XZ, Fan B. Detection of targets and their mechanisms for early diagnosis of traumatic deep vein thrombosis. Genet Mol Res 2015; 14:2413-21. [DOI: 10.4238/2015.march.27.26] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|