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Ma QM, Tang WB, Li XJ, Chang F, Yin X, Chen ZH, Wu GH, Xia CD, Li XL, Wang DY, Chu ZG, Zhang Y, Wang L, Wu CL, Tong YL, Cui P, Guo GH, Zhu ZH, Huang SY, Chang L, Liu R, Liu YJ, Wang YS, Liu XB, Shen T, Zhu F. [Multicenter retrospect analysis of early clinical features and analysis of risk factors on prognosis of elderly patients with severe burns]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2024; 40:249-257. [PMID: 38548395 DOI: 10.3760/cma.j.cn501225-20230808-00042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Objective: To investigate the early clinical characteristics of elderly patients with severe burns and the risk factors on prognosis. Methods: This study was a retrospective case series study. Clinical data of 124 elderly patients with severe burns who met the inclusion criteria and were admitted to the 12 hospitals from January 2015 to December 2020 were collected, including 4 patients from the Fourth People's Hospital of Dalian, 5 patients from Fujian Medical University Union Hospital, 22 patients from Guangzhou Red Cross Hospital of Jinan University, 5 patients from Heilongjiang Provincial Hospital, 27 patients from the First Affiliated Hospital of Naval Medical University, 9 patients from the First Affiliated Hospital of Nanchang University, 10 patients from Affiliated Hospital of Nantong University, 9 patients from Tongren Hospital of Wuhan University & Wuhan Third Hospital, 12 patients from the 924th Hospital of PLA, 6 patients from Zhangjiagang First People's Hospital, 4 patients from Taizhou Hospital of Zhejiang Province, and 11 patients from Zhengzhou First People's Hospital. The patients' overall clinical characteristics, such as gender, age, body mass index, total burn area, full-thickness burn area, inhalation injury, causative factors, whether combined with underlying medical diseases, and admission time after injury were recorded. According to the survival outcome within 28 days after injury, the patients were divided into survival group (89 cases) and death group (35 cases). The following data of patients were compared between the two groups, including the basic data and injuries (the same as the overall clinical characteristics ahead); the coagulation indexes within the first 24 hours of injury such as prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time, D-dimer, fibrinogen degradation product (FDP), international normalized ratio (INR), and fibrinogen; the blood routine indexes within the first 24 hours of injury such as white blood cell count, platelet count, neutrophil-to-lymphocyte ratio, monocyte count, red blood cell count, hemoglobin, and hematocrit; the organ function indexes within the first 24 hours of injury such as direct bilirubin, total bilirubin, urea, serum creatinine, aspartate aminotransferase, alanine aminotransferase, total protein, albumin, globulin, blood glucose, triglyceride, total cholesterol, alkaline phosphatase, creatine kinase, electrolyte indexes (potassium, sodium, chlorine, calcium, magnesium, and phosphorus in blood), uric acid, myoglobin, and brain natriuretic peptide; the infection and blood gas indexes within the first 24 hours of injury such as procalcitonin, C-reactive protein, pH value, oxygenation index, base excess, and lactate; treatment such as whether conducted with mechanical ventilation, whether conducted with continuous renal replacement therapy, whether conducted with anticoagulation therapy, whether applied with vasoactive drugs, and fluid resuscitation. The analysis was conducted to screen the independent risk factors for the mortality within 28 days after injury in elderly patients with severe burns. Results: Among 124 patients, there were 82 males and 42 females, aged 60-97 years, with body mass index of 23.44 (21.09, 25.95) kg/m2, total burn area of 54.00% (42.00%, 75.00%) total body surface area (TBSA), and full-thickness burn area of 25.00% (10.00%, 40.00%) TBSA. The patients were mainly combined with moderate to severe inhalation injury and caused by flame burns. There were 43 cases with underlying medical diseases. The majority of patients were admitted to the hospital within 8 hours after injury. There were statistically significant differences between patients in the 2 groups in terms of age, total burn area, full-thickness burn area, and inhalation injury, and PT, APTT, D-dimer, FDP, INR, white blood cell count, platelet count, urea, serum creatinine, blood glucose, blood sodium, uric acid, myoglobin, and urine volume within the first 24 hours of injury (with Z values of 2.37, 5.49, 5.26, 5.97, 2.18, 1.95, 2.68, 2.68, 2.51, 2.82, 2.14, 3.40, 5.31, 3.41, 2.35, 3.81, 2.16, and -3.82, respectively, P<0.05); there were statistically significant differences between two groups of patients in whether conducted with mechanical ventilation and whether applied with vasoactive drugs (with χ2 values of 9.44 and 28.50, respectively, P<0.05). Age, total burn area, full-thickness burn area, serum creatinine within the first 24 hours of injury, and APTT within the first 24 hours of injury were the independent risk factors for the mortality within 28 days after injury in elderly patients with severe burns (with odds ratios of 1.17, 1.10, 1.10, 1.09, and 1.27, 95% confidence intervals of 1.03-1.40, 1.04-1.21, 1.05-1.19, 1.05-1.17, and 1.07-1.69, respectively, P<0.05). Conclusions: The elderly patients with severe burns had the injuries mainly from flame burns, often accompanied by moderate to severe inhalation injury and enhanced inflammatory response, elevated blood glucose levels, activated fibrinolysis, and impaired organ function in the early stage, which are associated with their prognosis. Age, total burn area, full-thickness burn area, and serum creatinine and APTT within the first 24 hours of injury are the independent risk factors for death within 28 days after injury in this population.
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Affiliation(s)
- Q M Ma
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China Department of Critical Care Medicine, Shanghai East Hospital Affiliated to Tongji University, Shanghai 200120, China
| | - W B Tang
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou 510220, China
| | - X J Li
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou 510220, China
| | - F Chang
- Department of Burns and Plastic Surgery, Zhangjiagang First People's Hospital, Zhangjiagang 215600, China
| | - X Yin
- Department of Burns and Plastic Surgery, Zhangjiagang First People's Hospital, Zhangjiagang 215600, China
| | - Z H Chen
- Department of Burns, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - G H Wu
- Department of Burns, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - C D Xia
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - X L Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - D Y Wang
- Department of Burns, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
| | - Z G Chu
- Department of Burns, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
| | - Y Zhang
- Department of Burns and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - L Wang
- Department of Burns and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - C L Wu
- Department of Burns, Taizhou Hospital of Zhejiang Province, Linhai 317000, China
| | - Y L Tong
- Department of Burns and Plastic Surgery, the 924th Hospital of PLA, Guilin 541002, China
| | - P Cui
- Department of Burns and Plastic Surgery, the 924th Hospital of PLA, Guilin 541002, China
| | - G H Guo
- Medical Center of Burn Plastic and Wound Repair, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Z H Zhu
- Medical Center of Burn Plastic and Wound Repair, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - S Y Huang
- Medical Center of Burn Plastic and Wound Repair, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - L Chang
- Department of Burns and Plastic Surgery, the Fourth People's Hospital of Dalian, Dalian 116031, China
| | - R Liu
- Department of Burns, Heilongjiang Provincial Hospital, Harbin 150036, China
| | - Y J Liu
- Department of Burns, Heilongjiang Provincial Hospital, Harbin 150036, China
| | - Y S Wang
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - X B Liu
- Department of Critical Care Medicine, Shanghai East Hospital Affiliated to Tongji University, Shanghai 200120, China
| | - T Shen
- Department of Critical Care Medicine, Shanghai East Hospital Affiliated to Tongji University, Shanghai 200120, China
| | - F Zhu
- Department of Critical Care Medicine, Shanghai East Hospital Affiliated to Tongji University, Shanghai 200120, China
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Chen H, Xiong Z, Zhang A, Ge C, Chang F. Improving the Production of Antitumor Calicheamicin by the Micromonospora echinospora Mutant Coupled with in situ Resin Adsorption in Fermentation Process. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822100040] [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: 03/01/2023]
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Cho M, Wang L, Chang F. Synergistic effect of berberine and tea tree oil against neisseria gonorrhea, in vitro T84 cell mucosa model. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.524] [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: 11/15/2022]
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Moore JL, Davies AR, Santaolalla A, van Hemelrijck M, Maisey N, Lagergren J, Gossage JA, Kelly M, Baker CR, Jacques A, Griffin N, Goh V, Ngan S, Lumsden A, Owczarczyk K, Qureshi A, Deere H, Green M, Chang F, Mahadeva U, Gill-Barman B, George S, Meenan J, Hill M, Waters J, Cominos M, Hynes O, Tham G, Bott RK, Dunn JM, Zeki SS. ASO Visual Abstract: Clinical Relevance of the Tumor Location-Modified Laurén Classification System of Gastric Cancer in a Western Population. Ann Surg Oncol 2022. [DOI: 10.1245/s10434-021-11308-z] [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: 11/18/2022]
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Chang X, Li S, Xue XD, Chang F. Propranolol regulates ERK1/2 signaling pathway and promotes chronic wound healing in diabetic rats. Eur Rev Med Pharmacol Sci 2020; 23:4498-4506. [PMID: 31173327 DOI: 10.26355/eurrev_201905_17962] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aimed to investigate if propranolol could regulate ERK1/2 signaling pathway and promote chronic wound healing in diabetic rats. MATERIALS AND METHODS Twenty-two rats were used to establish a diabetic chronic wound animal model. They were randomly separated into two groups: the propranolol group and the control group. The propranolol group was treated with propranolol ointment and the control group was treated with propranolol matrix cream to cover the wound surface. The expression of the p-ERK1/2 protein was detected by the Western Blot. RT-qPCR was used to detect the expression of VEGF. The concentrations of IL-6 and TNF-α were detected by ELISA. RESULTS The body weight of rats was significantly reduced after type 2 diabetes mellitus modeling. The healing rate of rats in the control group was significantly lower than that in the propranolol group (p<0.05). There was a significant increase in the expression of the p-ERK1/2 protein in the wound tissue of the propranolol group compared with that in the control group, except for the 11th day (p<0.05). The relative expression of Vascular Endothelial Growth Factor (VEGF) in the propranolol group was significantly higher than that in the control group on the 2nd day (p<0.05), while the relative expression of VEGF in the propranolol group was significantly increased on the 11th day after modeling (p<0.05). On the 20th day, the expressions of IL-6 and TNF-α in the propranolol group were significantly higher than those in the control group, and there were significant differences (p<0.05). It was found that the IL-6 and TNF-α expressions in the propranolol group reached the peak on the 11th day and then gradually decreased (p<0.05). CONCLUSIONS The results indicated that propranolol can accelerate the healing of diabetic wounds by regulating the expression of VEGF by phosphorylation of ERK1/2 protein, thus promoting chronic wound healing in diabetes.
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Affiliation(s)
- X Chang
- Department of Endocrinology, Wuwei People's Hospital, Wuwei, P.R. China.
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Zhang T, Gao G, Chang F. miR-152 promotes spinal cord injury recovery via c-jun amino terminal kinase pathway. Eur Rev Med Pharmacol Sci 2020; 23:44-51. [PMID: 30657545 DOI: 10.26355/eurrev_201901_16746] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this research is to explore the possible role of miR-152 in spinal cord injury and its underlying mechanism. MATERIALS AND METHODS After a mouse model of spinal cord injury (SCI) was developed, Real Time-quantitative Polymerase Chain Reaction (RT-qPCR) was used to detect the expression of miR-152 and c-jun in the mouse. In addition, the expression levels of interleukin-1b (IL-1b), interleukin-18 (IL-18) and tumor necrosis factor-α (TNF-α) were detected by enzyme-linked immunosorbent assay (ELISA). Subsequently, miR-152 was overexpressed and the levels of inflammation and c-jun after spinal cord injury were detected by Western blot. Furthermore, the grip strength of double forelimb, left forelimb or right forelimb of the mice was detected using a grip force test after miR-152 was overexpressed in the injured area of each group. RESULTS By constructing a mouse model of spinal cord injury, we found that the expression of miR-152 in the injured area decreased with time; meanwhile, the inflammatory relative genes including IL-1b, IL18, TNF-α, and c-jun were significantly increased. However, miR-152 overexpression significantly reduced the levels of inflammation genes as well as the expression of c-jun. Besides, the strength of the forelimbs in the spinal cord injury mice was restored. CONCLUSIONS MiR-152 could inhibit inflammatory responses and promote the recovery of the spinal cord injury through the c-jun N-terminal kinase pathway and it can be a target molecular for treating spinal cord injury.
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Affiliation(s)
- T Zhang
- Department of Orthopaedic Surgery, Affiliated Shanxi Provincial People's Hospital, Shanxi Medical University, Taiyuan, China.
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Yu JB, Zhang HJ, Yan LW, Chang F, Jia ZW, Yang XR. [microRNA-16-5p targeted tetraspanin 15 gene to inhibit the proliferation, migration and invasion of osteosarcoma cell through phospoinositide 3-kinase/protein kinase B signaling pathway]. Zhonghua Yi Xue Za Zhi 2020; 100:1668-1675. [PMID: 32486604 DOI: 10.3760/cma.j.cn112137-20191101-02376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the effects of miR-16-5p on proliferation, migration and invasion of osteosarcoma cells and its mechanism. Methods: Quantitative polymerase chain reaction (qPCR) and Western blotting were used to detect the mRNA and protein expression of miR-16-5p and TSPAN15 in human normal osteoblasts hFOB 1.19 and osteosarcoma cells MG63, Saos2 and HOS. The miR-16-5p or si-TSPAN15 was transfected into MG63 cells to observe its role in cell proliferation, migration and invasion. Cell proliferation was measured with MTT assay, cell migration and invasion were examined by Transwell, and the protein expression of CyclinD1, matrix metalloproteinase 2 (MMP-2), MMP-9, tetraspanin 15 (TSPAN15), phospha-tidylinositol3-kinase(p-PI3K) and phospha-protein kinase B(p-AKT) were determined by using Western blotting. The starbase website prediction combined with dual luciferase gene reporter assay was performed to analyze the targeting relationship between miR-16-5p and TSPAN15. miR-16-5p and pcDNA-TSPAN1 were co-transfected to assess the effect of high expression of TSPAN15 on overexpression of miR-16-5p-induced proliferation, migration and invasion of MG63 cells. Data comparison between the two groups was performed by using t test. Results: Compared with hFOB 1.19 cells (1.00±0.12), the expression of miR-16-5p was significantly decreased in MG63, Saos2 and HOS cells (0.32±0.05, 0.40±0.04, 0.45±0.06, respectively)(F=156.204, P<0.05), and TSPAN15 mRNA and protein levels were greatly increased (F=71.718, 110.350, both P<0.05). Overexpression of miR-16-5p obviously reduced the expression of CyclinD1, MMP-2, MMP-9 protein, cell viability, cell migration and invasion (F=150.136,117.228, 154.971, 89.479, 98.373, 130.880, all P<0.05) in MG63 cells. Knockdown of TSPAN15 greatly reduced CyclinD1, MMP-2, MMP-9 protein levels, cell survival rate, cell migration, and invasion number (F=93.206, 107.030, 109.326, 115.625, 146.113, 139.300, all P<0.05). Overexpression of miR-16-5p markedly decreased the expression of p-PI3K and p-AKT protein in MG63 cells (F=156.755, 181.419, both P<0.05). miR-16-5p targeted to regulate the expression of TSPAN15. High expression of TSPAN15 partially reversed the inhibitory effect of miR-16-5p on TSPAN15, CyclinD1, MMP-2, MMP-9, p-PI3K, p-AKT protein expression, cell viability, cell migration number and invasion number in MG63 cells. Conclusion: miR-16-5p inhibits the proliferation, migration and invasion of osteosarcoma cells by targeting the TSPAN15 gene and regulating the PI3K/AKT signaling pathway.
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Affiliation(s)
- J B Yu
- Orthopedics Departmentof Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - H J Zhang
- Department of Nursing Surgery of Shanxi Health Vocational College, Taiyuan 030607, China
| | - L W Yan
- Orthopedics Department of Xinzhou People's Hospital, Xinzhou 034000, China
| | - F Chang
- Orthopedics Departmentof Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - Z W Jia
- Orthopedics Departmentof Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - X R Yang
- Department of Physiology, Shanxi Medical University, Taiyuan 030604, China
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Chang F, Li HZ, Zhang SY, Chen C, Liu C, Fan HY, Xing Y, Zahng QT, Cai WX. Working Memory of Patients with Mild Cognitive Impairment due to Brain Trauma Based on fNIRS. Fa Yi Xue Za Zhi 2020; 36:52-60. [PMID: 32250079 DOI: 10.12116/j.issn.1004-5619.2020.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Indexed: 11/30/2022]
Abstract
ABSTRACT Objective To discuss the activation characteristics of the prefrontal cortex of people with mild cognitive impairment (MCI) due to brain trauma during working memory tasks. Methods The psychological experiment design software E-prime was used and N-back paradigm was adopted as working memory task. Functional near-infrared spectroscopy (fNIRS) was used to detect changes in cortical oxygenated hemoglobin concentrations of 22 channels within the prefrontal lobe of 24 people with MCI due to brain trauma (study group) and 27 healthy volunteers (control group) with matching gender and age. Behavioral data, such as the number of keystroke errors and reaction time, were recorded simultaneously. Independent samples t test and non-parametric test were used to compare the mean value of oxygenated hemoglobin concentration change, the number of key errors and the mean value of reaction time of the two groups in each task. Results (1) The differences in the number of errors and reaction time between the two groups in 1-back and 2-back tasks had statistical significance (P<0.05).The main effects of task load and group were both significant (task F=14.11, P=0.001 1; group F=10.39, P=0.001 5). (2) During the 1-back task, the differences in oxygenated hemoglobin concentration changes of the 22 channels between the two groups had no statistical significance (P>0.05). During the 2-back task, the differences in oxygenated hemoglobin concentration changes of the two groups in channel 2, 3, 7, 9, 10, 11, 14, 15, 18, 19, 21 and 22 had statistical significance (P<0.05). (3) In the 1-back task, the left frontal pole and dorsolateral prefrontal area in both groups were activated. In the 2-back task, the activation areas of the control group were the left frontal pole area and the left dorsolateral prefrontal area, while that of the study group almost covered most of the left and right frontal pole areas, which were scattered and the right area was activated, too. Conclusion Patients with MCI due to brain trauma have obvious working memory impairment, and during the 2-back working memory task, the activation of the prefrontal lobe decreased, but the activation range was wider.
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Affiliation(s)
- F Chang
- School of Psychiatry, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - H Z Li
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - S Y Zhang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - C Chen
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - C Liu
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - H Y Fan
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Y Xing
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Q T Zahng
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - W X Cai
- School of Psychiatry, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
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Wang XJ, Zhang ZH, Zhang J, Yu JP, An XJ, Zhou XS, Zhang HX, Liu F, Guo XS, Song JF, Chang F, Su YX, Li RS. [Malfunction of autophagy in tibial growth plate chondrocytes causes increased apoptosis rate in chronic renal insufficiency rats]. Zhonghua Yi Xue Za Zhi 2020; 100:141-145. [PMID: 31937055 DOI: 10.3760/cma.j.issn.0376-2491.2020.02.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the effect of autophagy of tibial growth plate chondrocyte on apoptosis in chronic renal insufficiency (CRI) rats. Methods: Male 4-week-old SD rats were randomly divided into two groups: (1) Sham group: only the left ureter was exposed (n=10); (2) CRI group: the left ureter was ligated to cause CRI (n=10). The urine from all the rats was collected 6 weeks after the operation and the total protein content was measured. Then all the rats were sacrificed and the concentrations of creatinine and urea nitrogen in intracardiac blood were detected. The proximal tibia were fixed and decalcified to prepare histological sections, and the number of chondrocytes of column cells in the proliferative area of tibia growth plate was observed by saffron O staining. The expression rate of protein Light Chain-3, an autophagy marker of chondrocytes, was detected by immunofluorescence. The apoptosis rate of chondrocytes was detected by the method of TUNEL assay. The level of glycogenin-1, a glycogen formation marker of chondrocyte was detected by immunohistochemistry in chondrocytes. Results: The 24 h urine total protein was higher in CRI group [(163.5±11.3) mg vs (38.6±9.8) mg, t=25.620, P<0.001]. The levels of blood creatinine [(67.3±16.2) μmol/L vs (28.4±11.5) μmol/L, t=5.974, P<0.001] and urea nitrogen [(16.4±6.4) mmol/L vs (4.8±2.0) mmol/L, t=5.198, P<0.001] were higher in CRI group. The number of chondrocytes of column cells in the proliferating area of tibia growth plate was lower in CRI group (4.2±2.1 vs 9.1±3.8, t=3.109, P=0.006). The expression rate of LC-3 protein in chondrocytes of CRI group was lower [(27.2±12.6)% vs (51.4±18.2)%, t=3.457, P=0.003]. The level of glycogenin-1 of chondrocytes in CRI group increased significantly (6.1±2.5 vs 3.5±1.8, t=2.669, P=0.016). The apoptosis rate of chondrocytes in CRI group also increased [(17.2±4.8)% vs (5.1±3.4)%, t=6.505, P<0.001]. Conclusion: Malfunction of autophagy in tibial growth plate chondrocytes causes increased apoptosis rate in CRI rats, which might be caused by the failure of glycogen degradation in chondrocytes.
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Affiliation(s)
- X J Wang
- Department of Orthopaedic Surgery, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - Z H Zhang
- Shanxi Health Vocational College, Taiyuan 030012, China
| | - J Zhang
- Department of Orthopaedic Surgery, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - J P Yu
- Department of Orthopaedic Surgery, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - X J An
- Department of Orthopaedic Surgery, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - X S Zhou
- Department of Nephrology, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - H X Zhang
- Department of Nephrology, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - F Liu
- Medical Information and Data Center, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - X S Guo
- Department of Orthopaedic Surgery, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - J F Song
- Department of Orthopaedic Surgery, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - F Chang
- Department of Orthopaedic Surgery, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - Y X Su
- Department of Orthopaedic Surgery, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - R S Li
- Department of Nephrology, Shanxi Provincial People's Hospital, Taiyuan 030012, China
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Shen T, Chang F, Zhu F. [Advances in the research of severe burn-related corticosteroid insufficiency]. Zhonghua Shao Shang Za Zhi 2019; 35:884-887. [PMID: 31877613 DOI: 10.3760/cma.j.issn.1009-2587.2019.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Despite considerable advances in diagnosis and treatment of the critical illness-related corticosteroid insufficiency (CIRCI), it is still not clear that whether it is common in severe burn patients or not, and how clinical diagnosis, treatment, and research progress. Severe burn is a systemic disease involving the damage of multiple organs of the whole body. The course of the disease is relatively long, and there often exists persistent inflammation, immunosuppression, and catabolism. On the basis of CIRCI study, the epidemiological evidence, possible mechanism, suspicious clinical manifestations, diagnosis and treatment of severe burn-related corticosteroid insufficiency (SBRCI) were briefly reviewed in this article in order to help clinical diagnosis and treatment of SBRCI.
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Affiliation(s)
- T Shen
- Burn Institute of PLA, Department of Burn Surgery, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - F Chang
- Department of Burns and Plastic Surgery, Zhangjiagang First People's Hospital (Zhangjiagang Hospital Affiliated to Soochow University), Zhangjiagang 215600, China
| | - F Zhu
- Burn Institute of PLA, Department of Burn Surgery, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
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Knight WRC, Yip C, Wulaningsih W, Jacques A, Griffin N, Zylstra J, Van Hemelrijck M, Maisey N, Gaya A, Baker CR, Kelly M, Gossage JA, Lagergren J, Landau D, Goh V, Davies AR, Ngan S, Qureshi A, Deere H, Green M, Chang F, Mahadeva U, Gill‐Barman B, George S, Dunn J, Zeki S, Meenan J, Hynes O, Tham G, Iezzi C. Prediction of a positive circumferential resection margin at surgery following neoadjuvant chemotherapy for adenocarcinoma of the oesophagus. BJS Open 2019; 3:767-776. [PMID: 31832583 PMCID: PMC6887675 DOI: 10.1002/bjs5.50211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 06/24/2019] [Indexed: 02/06/2023] Open
Abstract
Background A positive circumferential resection margin (CRM) has been associated with higher rates of locoregional recurrence and worse survival in oesophageal cancer. The aim of this study was to establish if clinicopathological and radiological variables might predict CRM positivity in patients who received neoadjuvant chemotherapy before surgery for oesophageal adenocarcinoma. Methods Multivariable analysis of clinicopathological and CT imaging characteristics considered potentially predictive of CRM was performed at initial staging and following neoadjuvant chemotherapy. Prediction models were constructed. The area under the curve (AUC) with 95% confidence intervals (c.i.) from 1000 bootstrapping was assessed. Results A total of 223 patients were included in the study. Poor differentiation (odds ratio (OR) 2·84, 95 per cent c.i. 1·39 to 6·01) and advanced clinical tumour status (T3-4) (OR 2·93, 1·03 to 9·48) were independently associated with an increased CRM risk at diagnosis. CT-assessed lack of response (stable or progressive disease) following chemotherapy independently corresponded with an increased risk of CRM positivity (OR 3·38, 1·43 to 8·50). Additional CT evidence of local invasion and higher CT tumour volume (14 cm3) improved the performance of a prediction model, including all the above parameters, with an AUC (c-index) of 0·76 (0·67 to 0·83). Variables associated with significantly higher rates of locoregional recurrence were pN status (P = 0·020), lymphovascular invasion (P = 0·007) and poor response to chemotherapy (Mandard score 4-5) (P = 0·006). CRM positivity was associated with a higher locoregional recurrence rate, but this was not statistically significant (P = 0·092). Conclusion The presence of advanced cT status, poor tumour differentiation, and CT-assessed lack of response to chemotherapy, higher tumour volume and local invasion can be used to identify patients at risk of a positive CRM following neoadjuvant chemotherapy.
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Affiliation(s)
- W. R. C. Knight
- Department of Surgery, Guy's and St Thomas' Oesophago‐Gastric Centre, King's College London
- School of Cancer and Pharmaceutical Sciences, King's College London
| | - C. Yip
- School of Biomedical Engineering and Imaging Sciences, King's College London
| | - W. Wulaningsih
- Cancer Epidemiology and Population Health Associated Research Group, King's College London
| | - A. Jacques
- Department of Radiology, Guy's and St Thomas' Hospital, London, UK
| | - N. Griffin
- Department of Radiology, Guy's and St Thomas' Hospital, London, UK
| | - J. Zylstra
- Department of Surgery, Guy's and St Thomas' Oesophago‐Gastric Centre, King's College London
| | - M. Van Hemelrijck
- Cancer Epidemiology and Population Health Associated Research Group, King's College London
| | - N. Maisey
- Department of Oncology, Guy's and St Thomas' Hospital, London, UK
| | - A. Gaya
- Department of Oncology, Guy's and St Thomas' Hospital, London, UK
| | - C. R. Baker
- Department of Surgery, Guy's and St Thomas' Oesophago‐Gastric Centre, King's College London
| | - M. Kelly
- Department of Surgery, Guy's and St Thomas' Oesophago‐Gastric Centre, King's College London
| | - J. A. Gossage
- Department of Surgery, Guy's and St Thomas' Oesophago‐Gastric Centre, King's College London
- School of Cancer and Pharmaceutical Sciences, King's College London
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - J. Lagergren
- Department of Surgery, Guy's and St Thomas' Oesophago‐Gastric Centre, King's College London
- School of Cancer and Pharmaceutical Sciences, King's College London
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - D. Landau
- Department of Oncology, Guy's and St Thomas' Hospital, London, UK
| | - V. Goh
- School of Biomedical Engineering and Imaging Sciences, King's College London
- Cancer Epidemiology and Population Health Associated Research Group, King's College London
| | - A. R. Davies
- Department of Surgery, Guy's and St Thomas' Oesophago‐Gastric Centre, King's College London
- School of Cancer and Pharmaceutical Sciences, King's College London
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
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Chang F, Xiong W, Wang D, Liu XZ, Zhang W, Zhang M, Jing P. Facilitation of ultrasonic microvesicles on homing and molecular mechanism of bone marrow mesenchymal stem cells in cerebral infarction patients. Eur Rev Med Pharmacol Sci 2017; 21:3916-3923. [PMID: 28975970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE Cerebral infarction, or ischemia brain stroke, is a common cerebrovascular disease. Bone marrow mesenchymal stem cells (BMSCs) are widely used to treating ischemia disease such as cardiac infarction. Ultrasonic microvesicles may help the targeting of exogenous factors via localized energy blast. Therefore, this study aims to investigate the effect of ultrasonic microvesicles on the homing of BMSCs on artery thrombosis and the associated molecular mechanisms. MATERIALS AND METHODS Rat BMSCs were isolated and cultured. Rats were divided into sham, model, BMSCs, and microvesicles groups. Cerebral infarction model was prepared by ligation of cervical artery and middle cerebral artery. 3×106/kg BMSCs were transplanted via tail veins. Microvesicles were used for assisting BMSCs infusion. Sex-determining region Y (SRY) gene expression was measured by Real-time PCR, while 2,3,5-triphenyltetrazolium chloride (TTC) staining was employed for describing the area of cerebral infarction. The activity of caspase 3 was assayed by test kit. Vascular endothelial growth factor (VEGF), nuclear factor kappa B (NF-κB) mRNA/protein levels, were quantified by Real-time PCR, and Western blotting, respectively. RESULTS Microvesicle group had significantly elevated SRY expression (p<0.05 compared to BMSCs group). Transplantation of BMSCs remarkably decreased cerebral infarction area, caspase 3 activity or NF-κB expression, and increased VEGF expression (p<0.05 compared to model group). Microvesicle induced BMSCs had more potent effects (p<0.01). CONCLUSIONS Ultrasound microvesicle facilitated homing of BMSCs in cerebral infarction, and improved infarction disease via up-regulating VEGF expression, inhibiting NF-κB expression, and modulating apoptosis.
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Affiliation(s)
- F Chang
- Department of Neurology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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Yi P, Tsai C, Chang F. 0076 TWO NOVEL ADENOSINE ANALOGUES AS HYPNOTICS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.075] [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: 11/12/2022] Open
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14
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Yamashita A, Murakami T, Kadowaki S, Yoshida K, Ito E, Matsuda N, Chang F, Hattori N, Miyai I, Ugawa Y. Spike-timing dependent plasticity at spinal motoneurons. Brain Stimul 2017. [DOI: 10.1016/j.brs.2017.01.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Shiah YJ, Chang F, Chiang SK, Tam WCC. Religion and Subjective Well-Being: Western and Eastern Religious Groups Achieved Subjective Well-Being in Different Ways. J Relig Health 2016; 55:1263-1269. [PMID: 24944164 DOI: 10.1007/s10943-014-9905-4] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Culture can moderate which variables most influence subjective well-being (SWB). Because religion can be conceptualized as culture, religious differences can be considered cultural differences. However, there have been few studies comparing how different religious groups evaluate SWB at any given time. This study is among the first to investigate this issue. The present study compared Buddhists, Taoists, Christians, and atheists. In addition to demographic items, 451 Chinese adults completed Chinese version of the Socially Oriented Cultural Conception of SWB Scale. Religious belief was distributed as follows: 10 % Christian, 20 % Buddhist, 25 % Taoist, and 43 % atheists. As predicted, the socially oriented cultural conception of SWB was found to be highest among Buddhists, followed in order by Taoists, atheists, and Christians. It was concluded that the various religious groups achieved SWB in different ways.
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Affiliation(s)
- Yung-Jong Shiah
- Graduate Institute of Counseling Psychology and Rehabilitation Counseling, National Kaohsiung Normal University, No. 116, Heping 1st Road, Kaohsiung, 802, Taiwan.
| | - Frances Chang
- Applied Foreign Languages, Chienkuo Technology University, Changhua City, Taiwan
| | - Shih-Kuang Chiang
- Clinical and Counseling Psychology Department, National Dong Hwa University, Shoufeng, Taiwan
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Chang F, Wang P, Tsai P, Lee S, Yeh C, Fan K, Chang J. SU-F-T-597: Modeling and Evaluation of RapidPlan for Simultaneous Integrated Boost NPC Cases. Med Phys 2016. [DOI: 10.1118/1.4956782] [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: 11/07/2022] Open
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Chen J, Shen Y, Tsai P, Lee S, Wang P, Chang F, Liu Y, Chang J. 632 Dosimetric comparison of volumetric modulated arc therapy and proton pencil beam scanning technique under deep inspiration breath hold. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30368-9] [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: 10/22/2022]
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Abstract
We examined the association among anxiety, religiosity, meaning of life and mental health in a nonclinical sample from a Chinese society. Four hundred fifty-one Taiwanese adults (150 males and 300 females) ranging in age from 17 to 73 years (M = 28.9, SD = 11.53) completed measures of Beck Anxiety Inventory, Medical Outcomes Study Health Survey, Perceived Stress Scale, Social Support Scale, and Personal Religiosity Scale (measuring religiosity and meaning of life). Meaning of life has a significant negative correlation with anxiety and a significant positive correlation with mental health and religiosity; however, religiosity does not correlate significantly anxiety and mental health after controlling for demographic measures, social support and physical health. Anxiety explains unique variance in mental health above meaning of life. Meaning of life was found to partially mediate the relationship between anxiety and mental health. These findings suggest that benefits of meaning of life for mental health can be at least partially accounted for by the effects of underlying anxiety.
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Affiliation(s)
- Yung-Jong Shiah
- Graduate Institute of Counseling Psychology and Rehabilitation Counseling, National Kaohsiung Normal University, No. 116, Heping 1st Road, Kaohsiung, 802, Taiwan,
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Mukherjee R, Burns A, Rodden D, Chang F, Chaum M, Garcia N, Bollipalli N, Niemz A. Diagnosis and Management of Hepatitis C Virus Infection. ACTA ACUST UNITED AC 2015; 20:519-38. [PMID: 25609256 DOI: 10.1177/2211068214563794] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Indexed: 01/03/2023]
Abstract
The hepatitis C virus (HCV) infects more than 200 million people globally, with increasing incidence, especially in developing countries. HCV infection frequently progresses to chronic liver disease, creating a heavy economic burden on resource-poor countries and lowering patient quality of life. Effective HCV diagnosis, treatment selection, and treatment monitoring are important in stopping disease progression. Serological assays, which detect anti-HCV antibodies in the patient after seroconversion, are used for initial HCV diagnosis. Qualitative and quantitative molecular assays are used to confirm initial diagnosis, determine viral load, and genotype the dominant strain. Viral load and genotype information are used to guide appropriate treatment. Various other biomarker assays are performed to assess liver function and enable disease staging. Most of these diagnostic methods are mature and routinely used in high-resource countries with well-developed laboratory infrastructure. Few technologies, however, are available that address the needs of low-resource areas with high HCV prevalence, such as Africa and Southeast Asia.
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Affiliation(s)
- Ronita Mukherjee
- Keck Graduate Institute of Applied Life Sciences, Claremont, CA, USA
| | - Andrew Burns
- Keck Graduate Institute of Applied Life Sciences, Claremont, CA, USA
| | - Diane Rodden
- Keck Graduate Institute of Applied Life Sciences, Claremont, CA, USA
| | - Frances Chang
- Keck Graduate Institute of Applied Life Sciences, Claremont, CA, USA
| | - Manita Chaum
- Keck Graduate Institute of Applied Life Sciences, Claremont, CA, USA
| | - Nancy Garcia
- Keck Graduate Institute of Applied Life Sciences, Claremont, CA, USA
| | | | - Angelika Niemz
- Keck Graduate Institute of Applied Life Sciences, Claremont, CA, USA
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Chiu C, Yang C, Shih J, Huang M, Su W, Lai R, Wang C, Hsiao S, Lin Y, Ho C, Wu M, Hsia T, Lai C, Lee K, Lin C, Chang F, Chuang C, Yeh D, Perng R. Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor Treatment Response in Advanced Non-Small Cell Lung Cancer with G719X/L861Q/S768I Mutations. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu349.7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Lai I, Shiau C, Hu Y, Wong T, Ho D, Chang K, Chang F, Liang M, Lee Y, Chen H, Yen S, Chen Y. Treatment Results and Prognostic Factors for Intracranial Non-germinomatous Germ Cell Tumors: Single Institute Experience. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Zhou L, Lu Y, Vitale C, Mar P, Chang F, Dhopeshwarkar N, Rocha R. Representation of information about family relatives as structured data in electronic health records. Appl Clin Inform 2014; 5:349-67. [PMID: 25024754 PMCID: PMC4081741 DOI: 10.4338/aci-2013-10-ra-0080] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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: 10/12/2013] [Accepted: 02/11/2014] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The ability to manage and leverage family history information in the electronic health record (EHR) is crucial to delivering high-quality clinical care. OBJECTIVES We aimed to evaluate existing standards in representing relative information, examine this information documented in EHRs, and develop a natural language processing (NLP) application to extract relative information from free-text clinical documents. METHODS We reviewed a random sample of 100 admission notes and 100 discharge summaries of 198 patients, and also reviewed the structured entries for these patients in an EHR system's family history module. We investigated the two standards used by Stage 2 of Meaningful Use (SNOMED CT and HL7 Family History Standard) and identified coverage gaps of each standard in coding relative information. Finally, we evaluated the performance of the MTERMS NLP system in identifying relative information from free-text documents. RESULTS The structure and content of SNOMED CT and HL7 for representing relative information are different in several ways. Both terminologies have high coverage to represent local relative concepts built in an ambulatory EHR system, but gaps in key concept coverage were detected; coverage rates for relative information in free-text clinical documents were 95.2% and 98.6%, respectively. Compared to structured entries, richer family history information was only available in free-text documents. Using a comprehensive lexicon that included concepts and terms of relative information from different sources, we expanded the MTERMS NLP system to extract and encode relative information in clinical documents and achieved a corresponding precision of 100% and recall of 97.4%. CONCLUSIONS Comprehensive assessment and user guidance are critical to adopting standards into EHR systems in a meaningful way. A significant portion of patients' family history information is only documented in free-text clinical documents and NLP can be used to extract this information.
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Affiliation(s)
- L. Zhou
- Clinical Informatics, Partners eCare, Partners HealthCare System, Boston, MA
- Division of General Internal Medicine and Primary Care, Brigham and Women’s Hospital, Boston, MA
- Harvard Medical School, Boston, MA
| | - Y. Lu
- Clinical Informatics, Partners eCare, Partners HealthCare System, Boston, MA
| | - C.J. Vitale
- Clinical Informatics, Partners eCare, Partners HealthCare System, Boston, MA
| | - P.L. Mar
- Clinical Informatics, Partners eCare, Partners HealthCare System, Boston, MA
- Division of General Internal Medicine and Primary Care, Brigham and Women’s Hospital, Boston, MA
- Harvard Medical School, Boston, MA
| | - F. Chang
- Clinical Informatics, Partners eCare, Partners HealthCare System, Boston, MA
| | - N. Dhopeshwarkar
- Clinical Informatics, Partners eCare, Partners HealthCare System, Boston, MA
| | - R.A. Rocha
- Clinical Informatics, Partners eCare, Partners HealthCare System, Boston, MA
- Division of General Internal Medicine and Primary Care, Brigham and Women’s Hospital, Boston, MA
- Harvard Medical School, Boston, MA
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Saldanha L, Dwyer J, Bailen R, Andrews K, Bailey R, Betz J, Burt V, Chang F, Costello R, Emenaker N, Gahche J, Harnly J, Hardy C, Pehrsson P. When a dietary supplement product name says “energy”, what’s in the bottle? (634.1). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.634.1] [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: 11/11/2022]
Affiliation(s)
| | - J Dwyer
- ODS/NIHBETHESDAMDUnited States
| | | | | | | | - J Betz
- ODS/NIHBETHESDAMDUnited States
| | - V Burt
- NHANES/CDCHyattsvilleMDUnited States
| | - F Chang
- NLM/NIHBETHESDAMDUnited States
| | | | | | - J Gahche
- NHANES/CDCHyattsvilleMDUnited States
| | - J Harnly
- ARS/USDABeltsvilleMDUnited States
| | - C Hardy
- CFSAN/FDACollege ParkMDUnited States
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Potthoff P, Gargani L, Agoston G, Moreo A, Pingitore A, Lombardi M, Varga A, Sicari R, Picano E, Hu K, Liu D, Niemann M, Herrmann S, Cikes M, Gaudron P, Knop S, Ertl G, Bijnens B, Weidemann F, Orii M, Hirata K, Yamano T, Tanimoto T, Ino Y, Yamaguchi T, Kubo T, Imanishi T, Akasaka T, Addetia K, Patel A, Spencer K, Mor-Avi V, Lang R, Yu WC, Liao J, Chang F, Niu D. Oral Abstract session * The importance of cardiac imaging in systemic diseases: 12/12/2013, 08:30-10:00 * Location: Bursa. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet218] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yi P, Chang F. Amygdala opioid receptors mediate the electroacupuncture-induced deterioration of sleep disruptions in epilepsy rats. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.756] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chang F, Seguin J, Gupta N, Munoz C, Stringer D. Health and wealth awareness and assessment in rural Ontario. Eur Geriatr Med 2013. [DOI: 10.1016/j.eurger.2013.07.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wang P, Hsu W, Chung N, Chang F, Fogliata A, Cozzi L. Results From a Phase II Non-randomized Trial on 145 Patients With Hepatocellular Carcinoma Treated With Volumetric Modulated Arc Therapy. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.879] [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: 10/27/2022]
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Beall S, Moon K, Widra E, DeCherney A, Chang F, Richter K. Matched samples comparison of in vitro fertilization (IVF) clinical outcomes associated with leuprolide acetate (LA) versus human chorionic gonadotropin (hCG) trigger for oocyte maturation. Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.07.192] [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]
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Beall S, Moon K, Widra E, Segars J, Chang F, Richter K. Human chorionic gonadotropin (hCG) re-trigger following a poor response to leuprolide acetate (LA) trigger is not associated with poor in vitro fertilization (IVF) treatment outcomes. Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.07.187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Chang F, Lei T, Wong ACM. Improved Likelihood Inference on Testing the Difference of Non Centrality Parameters of Two Independent Non central tDistributions with Identical Degrees of Freedom. COMMUN STAT-SIMUL C 2012. [DOI: 10.1080/03610918.2011.585005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Abstract
This study was designed to compare tactile sensitivity of children and adults on printed target stimuli covering a wide range of elevations and requiring different resolutions. A recognition-relief task using 9 digits at 6 levels of elevation from a surface (0.5, 0.4, 0.3, 0.2, 0.1, and 0.05 mm) was presented to 24 young adults and 24 children. As predicted, relief elevations as low as 0.05 mm were recognized above chance. As predicted, children performed significantly more poorly than the adults on recognition at all elevations, although the difference increased as elevation increased. Adults performed significantly better than children on high-resolution digit 8, but there was no reliable age difference on low-resolution digit 1. Recognition difference between the high- and low-resolution digits decreased nonlinearly as elevation increased, irrespective of age. Overall, the findings support previous research indicating greater tactile sensitivity in adults than in children, but the superiority was moderated by the elevation and resolution requirements of the stimuli.
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Affiliation(s)
| | - Frances Chang
- Department of Applied Foreign Languages, Chienkuo Technology University
| | - Wai-Cheong Carl Tam
- Department of Psychology, Research Center for Psychological Science, Chung Yuan Christian University
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Botha AJ, Odendaal W, Patel V, Watcyn-Jones T, Mahadeva U, Chang F, Deere H. Total adventitial resection of the cardia: 'optimal local resection' for tumours of the oesophagogastric junction. Ann R Coll Surg Engl 2011; 93:608-14. [PMID: 22041237 PMCID: PMC3566686 DOI: 10.1308/003588411x13165261994111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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] [Accepted: 07/18/2011] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Little is published about the local resection of oesophageal cancers. We adopted the principles of rectal cancer surgery, ie standard surgical dissection techniques as well as standard pathological processing and reporting, and assessed the feasibility of applying them to oesophagogastric junction (OGJ) cancer. METHODS Over a two-year period consecutive patients with invasive cancers of the OGJ were studied. Following staging and neoadjuvant chemotherapy (NAC), a standard dissection defined as a total adventitial resection of the cardia (TARC) was performed. Standard histopathological processing involved external inking, photographing, transverse slicing and mounting of cut samples on megablocks. Hospital morbidity and mortality as well as survival at five years' follow-up were assessed. RESULTS Forty consecutive patients had a TARC for OGJ carcinoma. Of these, 32 were offered NAC. Introducing TARC did not result in increased morbidity or mortality. Twenty-seven patients (68%) had an R0 resection that was directly related to the tumour stage and significantly related to a response to chemotherapy. Sixteen patients (42%) were alive five years after their TARC operation. CONCLUSIONS Although the adventitia of the OGJ is not as well developed as that of the rectum, TARC can be performed safely as a standardised resection for OGJ cancers. Whereas the R0 rate for early stage tumours is very high, it remains disappointingly low for T3N1 tumours despite NAC. Improved long-term survival for these advanced tumours will only be achieved with better neoadjuvant and adjuvant therapies.
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Affiliation(s)
- A J Botha
- Guy's and St Thomas' NHS Foundation Trust, London, UK.
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Hartman L, Shafer MA, Pollack L, Wibbelsman C, Chang F, Tebb K. P2-S1.05 Parental acceptability of contraceptive methods offered to their teen during a confidential healthcare visit. Br J Vener Dis 2011. [DOI: 10.1136/sextrans-2011-050108.283] [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: 11/04/2022]
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Abstract
This paper reports an initial study investigating the relations of paranormal beliefs with religiosity in a Chinese sample, as well as the development of a Chinese version of the Revised Paranormal Belief Scale and a test of its psychometric properties with 310 college students (5.5% Christians, 21.3% Buddhists, 61% believers in traditional Chinese religions, and 12% atheists). The reliability and validity of the Chinese version were satisfactory. In general, traditional Chinese religious believers had higher scores on paranormal belief than did Christians and atheists, and the mean total score of the Chinese participants was higher than previously reported in a Western sample. It was concluded that the greater involvement of practitioners of traditional Chinese religions in activities emphasizing paranormal experiences might contribute to their greater paranormal belief, especially as compared to the minority Christian group. The results are consistent with the idea that Christianity may offer the least support for paranormal belief.
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Affiliation(s)
- Yung-Jong Shiah
- Department of Psychology, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Nishino T, Chang F, Ishii T, Yanai T, Mishima H, Ochiai N. Joint distraction and movement for repair of articular cartilage in a rabbit model with subsequent weight-bearing. ACTA ACUST UNITED AC 2010; 92:1033-40. [DOI: 10.1302/0301-620x.92b7.23200] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We have previously shown that joint distraction and movement with a hinged external fixation device for 12 weeks was useful for repairing a large articular cartilage defect in a rabbit model. We have now investigated the results after six months and one year. The device was applied to 16 rabbits who underwent resection of the articular cartilage and subchondral bone from the entire tibial plateau. In group A (nine rabbits) the device was applied for six months. In group B (seven rabbits) it was in place for six months, after which it was removed and the animals were allowed to move freely for an additional six months. The cartilage remained sound in all rabbits. The areas of type II collagen-positive staining and repaired soft tissue were larger in group B than in group A. These findings provide evidence of long-term persistence of repaired cartilage with this technique and that weight-bearing has a positive effect on the quality of the cartilage.
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Affiliation(s)
- T. Nishino
- Department of Orthopaedic Surgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - F. Chang
- Department of Orthopaedic Surgery China-Japan Union Hospital of Jilin University, 126 Xian Tai Street, Changchun, Jilin 130033, China
| | - T. Ishii
- Department of Orthopaedic Surgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - T. Yanai
- Department of Orthopaedic Surgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - H. Mishima
- Department of Orthopaedic Surgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - N. Ochiai
- Department of Orthopaedic Surgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
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Abstract
We propose and simulate a photovoltaic solar cell comprised of Si and Ge pn junctions in tandem. With an anti-reflection film at the front surface, we have shown that optimal solar cells favor a thin Si layer and a thick Ge layer with a thin tunnel hetero-diode placed in between. We predict efficiency ranging from 19% to 28% for AM1.5G solar irradiance concentrated from 1 approximately 1000 Suns for a cell with a total thickness approximately 100 microm.
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Affiliation(s)
- G Sun
- Department of Physics, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125, USA.
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Tysome JR, Chandra A, Chang F, Puwanarajah P, Elliott M, Caroll P, Powrie J, Hubbard JG, Clarke SEM, Jeannon JP, Simo R. Improving prediction of malignancy of cytologically indeterminate thyroid nodules. Br J Surg 2009; 96:1400-5. [DOI: 10.1002/bjs.6734] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Abstract
Background
Fine-needle aspiration (FNA) is essential in the investigation of thyroid nodules. The British Thyroid Association guidelines recommend clarification of whether follicular nodules are probable follicular neoplasms that require surgical excision. This study assessed the value of the subclassification of cytologically indeterminate thyroid nodules into either follicular neoplasms or other pathology.
Methods
The cytology reports of all thyroid FNAs performed between November 2005 and December 2007 at a single institution reported as Thy 3 (follicular lesions) were reviewed. They were reclassified as Thy 3A (probable follicular neoplasm) or Thy 3B (probable non-neoplastic lesion), and subsequently correlated with final clinical outcome to determine the predictive value of this subclassification.
Results
Forty-nine specimens were categorized as Thy 3A and 55 as Thy 3B. Of excised lesions, 14 (29 per cent) of 48 Thy 3A and 4 (10 per cent) of 42 Thy 3B nodules were malignant. If Thy 3A were to predict malignancy and Thy 3B benign disease, the sensitivity of the classification was 88 per cent, with a specificity of 55 per cent and negative predictive value of 91 per cent.
Conclusion
Subclassification of Thy 3 nodules into Thy 3A and Thy 3B improves the assessment of risk for thyroid malignancy.
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Affiliation(s)
- J R Tysome
- Department of Otolaryngology—Head and Neck Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - A Chandra
- Department of Histopathology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - F Chang
- Department of Histopathology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - P Puwanarajah
- Department of Otolaryngology—Head and Neck Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - M Elliott
- Department of Otolaryngology—Head and Neck Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - P Caroll
- Department of Endocrinology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - J Powrie
- Department of Endocrinology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - J G Hubbard
- Department of Endocrine Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - S E M Clarke
- Department of Nuclear Medicine, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - J P Jeannon
- Department of Otolaryngology—Head and Neck Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - R Simo
- Department of Otolaryngology—Head and Neck Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
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Zhang Z, Cherryholmes G, Chang F, Rose DM, Schraufstatter I, Shively JE. Evidence that cathelicidin peptide LL-37 may act as a functional ligand for CXCR2 on human neutrophils. Eur J Immunol 2009; 39:3181-94. [PMID: 19750480 PMCID: PMC3076219 DOI: 10.1002/eji.200939496] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
LL-37, derived from human cathelicidin, stimulates immune responses in neutrophils. Although FPR2 and P2X7 were proposed as LL-37 receptors, we have shown that among 21 neutrophil receptors only CXCR2 was down-regulated by LL-37. LL-37 functions similarly to CXCR2-specific chemokines CXCL1 and CXCL7 in terms of receptor down-regulation and intracellular calcium mobilization on freshly isolated neutrophils. Neutrophils pretreated with CXCL8, a chemokine that binds both CXCR1/2, completely blocked the calcium mobilization in response to LL-37, while LL-37 also partially inhibited (125)I-CXCL8 binding to neutrophils. SB225002, a selective CXCR2 antagonist, blocked LL-37-induced calcium mobilization and migration of neutrophils. LL-37 stimulates calcium mobilization in CXCR2-transfected HEK293 cells, CXCR2(+) THP-1 cells and monocytes, but not in CXCR1-transfected HEK293 cells. WKYMVm peptide (ligand for FPR2) does not block LL-37-stimulated calcium flux in either THP-1 (FPR2(-)) or monocytes (FPR2(high)), further confirming the specificity of LL-37 for CXCR2 and not FPR2. Among all ligands tested (ATP, BzATP, WKYMVm, CXCL1, and LL-37), only LL-37 stimulated migration of monocytes (CXCR2(+) and FPR2(+)) and migration was inhibited by the CXCR2 inhibitor SB225002. Moreover, CXCR2 but not CXCR1 was internalized in LL-37-treated neutrophils. Thus, our data provide evidence that LL-37 may act as a functional ligand for CXCR2 on human neutrophils.
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Affiliation(s)
- Zhifang Zhang
- Department of Immunology, Beckman Research Institute of City of Hope, 1450 E Duarte Road, Duarte, CA 91010, USA
| | - Gregory Cherryholmes
- Department of Immunology, Beckman Research Institute of City of Hope, 1450 E Duarte Road, Duarte, CA 91010, USA
| | - Frances Chang
- Department of Immunology, Beckman Research Institute of City of Hope, 1450 E Duarte Road, Duarte, CA 91010, USA
| | - David M. Rose
- Department of Medicine, University of California at San Diego, La Jolla, CA 92161 USA
| | | | - John E. Shively
- Department of Immunology, Beckman Research Institute of City of Hope, 1450 E Duarte Road, Duarte, CA 91010, USA
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Huang P, Chen Y, Wong T, Chang K, Hsu T, Chang F, Liang M, Lee Y, Chen H, Yen S. Concurrent Radiotherapy and Temozolomide for Pediatric Brain Stem Gliomas. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
Coeliac disease (CD) is an immune-mediated disease of the small intestine caused by intolerance to gluten. Removal of gluten from the diet results in a return to normal health for the majority of patients. A significant proportion of patients do not respond to a gluten-free diet and are considered to be suffering from refractory coeliac disease (RCD). Two types of RCD are now recognized: type 1 RCD is characterized by a polyclonal population of intraepithelial lymphocytes (IELs) with a normal immunophenotype, and type 2 RCD shows monoclonal IELs with an aberrant immunoprofile. Patients with RCD have a high risk of complications such as ulcerative jejunitis (UJ) and enteropathy-type T-cell lymphoma (ETTL). RCD2 may represent an early stage in the development of overt lymphoma. The diagnosis of RCD, therefore, has important implications, but remains a challenging area. In this paper we review the latest developments in RCD, including the diagnostic approach and a discussion of the key clinical, histological, immunohistochemical and molecular features of RCD and its complications.
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Affiliation(s)
- C Ho-Yen
- Department of Histopathology, Guy's and St Thomas' NHS Foundation Trust, London, UK.
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Chang F, Wong ACM. A Likelihood-Based Approximation to the Cumulative Distribution Function of the Noncentral tDistribution. COMMUN STAT-SIMUL C 2009. [DOI: 10.1080/03610910902785753] [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: 10/21/2022]
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Chang F, Dávila S, Ovalles V, Mejías E, Rodríguez O, Rodríguez R. [Cervical adenopathy presentation of adenocarcinoma of prostate]. Actas Urol Esp 2008; 31:1193-5. [PMID: 18314662 DOI: 10.1016/s0210-4806(07)73786-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The metastases of prostate cancer shows the regional lymphatic dissemination, being the cervical lymphatic metastases to infrequent and little reported in Literature. In the present work we contributed a new observation of this organization. We displayed a clinical case with lateral mass cervical left, abdominal pain and diarrheic. When making biopsy of cervical adenopathy reported adenocarcinoma prostate metastases. Colonoscopy with biopsy was made whose results were carcinoma little differentiated infiltrated necrotic center to rectum. The complementary studies demonstrated bilateral aortic adenopathys without injuries in thorax. Within the diagnosis differential of the cervical adenopathys in neck in adult men it must consider the prostate carcinoma, because in an early diagnosis and adapting treatment it can prolong the survive.
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Chang F, Dávila S, Ovalles V, Mejías E, Rodríguez O, Rodríguez R. Adenopatía cervical como presentación de adenocarcinoma de próstata. Actas Urol Esp 2007. [DOI: 10.4321/s0210-48062007001000017] [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: 11/11/2022]
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Chang F, Vu C, Chandra A, Meenan J, Herbert A. Endoscopic ultrasound-guided fine needle aspiration cytology of pancreatic neuroendocrine tumours: cytomorphological and immunocytochemical evaluation. Cytopathology 2006; 17:10-7. [PMID: 16417560 DOI: 10.1111/j.1365-2303.2006.00311.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVES Endoscopic ultrasound (EUS)-guided fine needle aspiration (FNA) is increasingly used in preoperative localization and diagnosis of pancreatic neoplasms including neuroendocrine tumours (NETs). The objective of the present study was to identify the cytological features of pancreatic NETs obtained by EUS-FNA. METHODS The study group consisted of nine cases of pancreatic tumours correctly diagnosed or strongly suggestive of NETs based on EUS-FNA. Cytological smears were retrospectively reviewed. The clinical data and immunocytochemical stains applied to the cell block preparations were also reviewed and examined. RESULTS All cases except one showed characteristic cytomorphological features sufficient for their recognition and separation from pancreatic adenocarcinoma and other lesions. The most helpful cytological features that facilitated the cytological diagnosis of NET were a richly cellular aspirate with a monotonous, poorly cohesive population of small cells with a speckled or dusty chromatin pattern and plasmacytoid morphology. The neuroendocrine differentiation of these tumours was further confirmed by immunocytochemistry. CONCLUSION EUS-FNA is a valuable method in the recognition of pancreatic NETs. By adherence to the characteristic cytomorphological criteria of pancreatic NET together with collection of suitable material for ancillary immunocytochemical stains, cytopathologists could reach a correct diagnosis in most instances.
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Affiliation(s)
- F Chang
- Department of Histopathology, St Thomas' Hospital, Guy's & St Thomas' NHS Foundation Trust, London, UK.
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Tebb K, Reznik Y, Williams J, Pai-Dhungat M, Chang F, Shafer M. 394 IS DRUG/ALCOHOL USE ASSOCIATED WITH HIGHER RATES OF SEXUAL ACTIVITY IN TEENS? J Investig Med 2006. [DOI: 10.2310/6650.2005.x0004.393] [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: 11/18/2022]
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Abstract
We produced large full-thickness articular cartilage defects in 33 rabbits in order to evaluate the effect of joint distraction and autologous culture-expanded bone-marrow-derived mesenchymal cell transplantation (ACBMT) at 12 weeks. After fixing the knee on a hinged external fixator, we resected the entire surface of the tibial plateau. We studied three groups: 1) with and without joint distraction; 2) with joint distraction and collagen gel, and 3) with joint distraction and ACBMT and collagen gel. The histological scores were significantly higher in the groups with ACBMT collagen gel (p < 0.05). The area of regenerated soft tissue was smaller in the group allowed to bear weight (p < 0.05). These findings suggest that the repair of large defects of cartilage can be enhanced by joint distraction, collagen gel and ACBMT.
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Affiliation(s)
- T Yanai
- Department of Orthopaedic Surgery, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
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Affiliation(s)
- F Chang
- Imperial Cancer Research Fund, P.O. Box 123, Lincoln's Inn Fields, London WC2 3PX, UK
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