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Shen JY, Shi CY, Pan ZM, Ju LL, Dong MD, Chen GF, Zhang YC, Yuan JK, Wu CJ, Xie YW, Wu J. Reentrance of interface superconductivity in a high-T c cuprate heterostructure. Nat Commun 2023; 14:7290. [PMID: 37949854 PMCID: PMC10638369 DOI: 10.1038/s41467-023-42903-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 10/25/2023] [Indexed: 11/12/2023] Open
Abstract
Increasing the carrier density in a Mott insulator by chemical doping gives rise to a generic superconducting dome in high temperature superconductors. An intriguing question is whether a second superconducting dome may exist at higher dopings. Here we heavily overdope La2-xSrxCuO4 (0.45 ≤ x ≤ 1.0) and discover an unprecedented reentrance of interface superconductivity in La2-xSrxCuO4 /La2CuO4 heterostructures. As x increases, the superconductivity is weakened and completely fades away at x = 0.8; but it revives at higher doping and fully recovers at x = 1.0. This is shown to be correlated with the suppression of the interfacial charge transfer around x = 0.8 and the weak-to-strong localization crossover in the La2-xSrxCuO4 layer. We further construct a theoretical model to account for the sophisticated relation between charge localization and interfacial charge transfer. Our work advances both the search for and control of new superconducting heterostructures.
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Affiliation(s)
- J Y Shen
- School of Physics, Zhejiang University, Hangzhou, 310027, China
- Research Center for Industries of the Future, Westlake University, Hangzhou, 310024, China
- Department of Physics, School of Science, Westlake University, Hangzhou, 310024, China
- Key Laboratory for Quantum Materials of Zhejiang Province, School of Science, Westlake University, Hangzhou, 310024, China
| | - C Y Shi
- School of Physics, Zhejiang University, Hangzhou, 310027, China
| | - Z M Pan
- Department of Physics, School of Science, Westlake University, Hangzhou, 310024, China
| | - L L Ju
- School of Physics, Zhejiang University, Hangzhou, 310027, China
| | - M D Dong
- School of Physics, Zhejiang University, Hangzhou, 310027, China
- Research Center for Industries of the Future, Westlake University, Hangzhou, 310024, China
- Department of Physics, School of Science, Westlake University, Hangzhou, 310024, China
- Key Laboratory for Quantum Materials of Zhejiang Province, School of Science, Westlake University, Hangzhou, 310024, China
| | - G F Chen
- School of Physics, Zhejiang University, Hangzhou, 310027, China
- Research Center for Industries of the Future, Westlake University, Hangzhou, 310024, China
- Department of Physics, School of Science, Westlake University, Hangzhou, 310024, China
- Key Laboratory for Quantum Materials of Zhejiang Province, School of Science, Westlake University, Hangzhou, 310024, China
| | - Y C Zhang
- School of Physics, Zhejiang University, Hangzhou, 310027, China
- Research Center for Industries of the Future, Westlake University, Hangzhou, 310024, China
- Department of Physics, School of Science, Westlake University, Hangzhou, 310024, China
- Key Laboratory for Quantum Materials of Zhejiang Province, School of Science, Westlake University, Hangzhou, 310024, China
| | - J K Yuan
- Department of Physics, School of Science, Westlake University, Hangzhou, 310024, China
| | - C J Wu
- Department of Physics, School of Science, Westlake University, Hangzhou, 310024, China
- Key Laboratory for Quantum Materials of Zhejiang Province, School of Science, Westlake University, Hangzhou, 310024, China
- New Cornerstone Science Laboratory, Department of Physics, School of Science, Westlake University, 310024, Hangzhou, China
- Institute for Theoretical Sciences, Westlake University, Hangzhou, 310024, Zhejiang, China
- Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, Zhejiang, China
| | - Y W Xie
- School of Physics, Zhejiang University, Hangzhou, 310027, China
| | - J Wu
- Research Center for Industries of the Future, Westlake University, Hangzhou, 310024, China.
- Department of Physics, School of Science, Westlake University, Hangzhou, 310024, China.
- Key Laboratory for Quantum Materials of Zhejiang Province, School of Science, Westlake University, Hangzhou, 310024, China.
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2
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Shen JY, Prasad K, Goh LL, Angkodjojo S, Khoo CY, Umapathi T. Dysferlinopathy, with mild cardiac involvement, from a novel mutation of DYSF gene. QJM 2023; 116:453-454. [PMID: 36610451 DOI: 10.1093/qjmed/hcad003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 12/30/2022] [Indexed: 01/09/2023] Open
Affiliation(s)
- J Y Shen
- From the Department of Neurology, National Neuroscience Institute, 11 Jalan Tan Tock Seng, 308433, Singapore
| | - K Prasad
- From the Department of Neurology, National Neuroscience Institute, 11 Jalan Tan Tock Seng, 308433, Singapore
| | - L L Goh
- Molecular Diagnostic Laboratory, Personalized Medicine Service, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, 308433, Singapore
| | - S Angkodjojo
- Department of General Medicine (Rheumatology), Sengkang General Hospital, 110 Sengkang E Way, 544886, Singapore
| | - C Y Khoo
- Department of Cardiology, National Heart Centre, 5 Hospital Dr, 169609, Singapore
| | - T Umapathi
- From the Department of Neurology, National Neuroscience Institute, 11 Jalan Tan Tock Seng, 308433, Singapore
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Ng KP, Shen JY, Chiew HJ, Ng ASL, Kandiah N, Rosa-Neto P, Gauthier S. White Matter Hyperintensity as a Vascular Contribution to the AT(N) Framework. J Prev Alzheimers Dis 2023; 10:387-400. [PMID: 37357280 DOI: 10.14283/jpad.2023.53] [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] [Indexed: 06/27/2023]
Abstract
The AT(N) framework enables the classification of an individual within the biological Alzheimer's disease (AD) continuum by pairing the cognitive stage with the biomarker status of amyloid-beta (Aβ, A), tau (T) and neurodegeneration (N). AD is a multifactorial disease that may involve different pathogenic mechanisms such as cerebrovascular disease (CVD). Therefore, biomarkers of these mechanisms can be added to the AT(N) framework to enhance the biomarker characterization of individuals within the AD continuum. In AD, white matter hyperintensities (WMH) which are postulated to develop as a result of chronic ischemia from small vessel CVD are shown to play a role in the aetiology. However, the interplay of WMH with Aβ and tau pathophysiology in AD remains unclear. In this review, we summarized the studies that evaluated the associations between WMH and AD pathophysiology (Aβ and tau). We found that the evidence supporting the association of WMH with Aβ was mixed, and this may be explained by the relative contributions of WMH due to its differential load and anatomical distribution. More studies are also needed to determine the association of WMH with tau pathology. Future longitudinal studies with harmonized methodologies to quantify WMH and account for the anatomical differences of WMH are required to validate the relationship between WMH and AT(N) biomarkers. This will allow a clearer understanding of the utility of WMH as a vascular biomarker in the AT(N) framework. Novel CVD biomarkers will also have the potential to further elucidate the contributions of CVD to the AD pathophysiology.
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Affiliation(s)
- K P Ng
- A/Prof. Ng Kok Pin, Senior Consultant, National Neuroscience Institute, 11 Jalan Tan Tock Seng, Singapore 308433, Tel: +65 63577153,
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Fan JY, Shen JY, Hu M, Zhao Y, Lin JS, Cao GW. [Spatiotemporal changes of COVID-19 outbreak in Shanghai]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1699-1704. [PMID: 36444450 DOI: 10.3760/cma.j.cn112338-20220608-00511] [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: 06/16/2023]
Abstract
Objective: To clarify the epidemiological characteristics and spatiotemporal clustering dynamics of COVID-19 in Shanghai in 2022. Methods: The COVID-19 data presented on the official websites of Municipal Health Commissions of Shanghai during March 1, 2022 and May 31, 2022 were collected for a spatial autocorrelation analysis by GeoDa software. A logistic growth model was used to fit the epidemic situation and make a comparison with the actual infection situation. Results: Pudong district had the highest number of symptomatic and asymptomatic infectants, accounting for 29.30% and 35.58% of the total infectants. Differences in cumulative attack rates and infection rates among 16 districts (P<0.001) were significant. The rates were significantly higher in Huangpu district than in other districts. The attack rate of COVID-19 from March 1, 2022 to May 31, 2022 had a global spatial positive correlation (P<0.05). Spatial distribution of COVID-19 attack rate was different at different periods. The global autocorrelation coefficient from March 16 to March 29, April 6 to April 12 and May 18 to May 24 had no statistical significance (P>0.05). Our local autocorrelation analysis showed that 22 high-high clustering areas were detected in eight periods.The high-risk hot-spot areas have experienced a "less-more-less" change process. The growth model fitting results were consistent with the actual infection situation. Conclusion: There was a clear spatiotemporal correlation in the distribution of COVID-19 in Shanghai. The comprehensive prevention and control measures of COVID-19 epidemic in Shanghai have effectively prohibited the growth of the epidemic, not only curbing the spatially spread of high-risk epidemic areas, but also reducing the risk of transmission to other cities.
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Affiliation(s)
- J Y Fan
- Department of Epidemiology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - J Y Shen
- Tongji University School of Medicine, Shanghai 200331,China
| | - M Hu
- Department of Epidemiology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - Y Zhao
- Department of Epidemiology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - J S Lin
- School of Medicine,Jinan University, Guangzhou 510632, China
| | - G W Cao
- Department of Epidemiology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China
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5
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Affiliation(s)
- J Y Shen
- From the Department of Neurology, National Neuroscience Institute, Singapore, Singapore
| | - G J Ng
- From the Department of Neurology, National Neuroscience Institute, Singapore, Singapore
| | - T Yeo
- From the Department of Neurology, National Neuroscience Institute, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
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Zhong SG, Mao Y, Shen JY, Ma J. [Research progress in magnetic resonance imaging of primary nocturnal enuresis]. Zhonghua Er Ke Za Zhi 2022; 60:840-843. [PMID: 35922202 DOI: 10.3760/cma.j.cn112140-20220221-00134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- S G Zhong
- Department of Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Y Mao
- Department of Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - J Y Shen
- Department of Nephrology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - J Ma
- Department of Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
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Hao ZY, Wang JQ, Luo YL, Liu X, Li SB, Zhao ML, Jin XY, Shen JY, Ke N, Song YZ, Qiao LR. Deep small RNA-Seq reveals microRNAs expression profiles in lactating mammary gland of 2 sheep breeds with different milk performance. Domest Anim Endocrinol 2021; 74:106561. [PMID: 33035848 DOI: 10.1016/j.domaniend.2020.106561] [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: 03/05/2020] [Revised: 09/04/2020] [Accepted: 09/07/2020] [Indexed: 01/22/2023]
Abstract
Micro ribonucleic acid (miRNA) is a type of noncoding RNA, and it has been revealed to play important roles in the activity of the mammary gland (MG) in some species. However, the function of miRNAs in MG of sheep is poorly understood. In the study, Gansu Alpine Merino (GAM; n = 9) and Small-tailed Han sheep (STH; n = 9) with different milk production traits were investigated. Microstructures and the expression profile of miRNAs of MG tissues at peak lactation were studied. Mature alveolar lumens of MG in appearance were larger in STH than GAM. The expression levels of CSN2 and the content of rough endoplasmic reticulum were also higher in STH ewes than GAM ewes. A total of 124 mature miRNAs were expressed, and 18 of these were differentially expressed between the 2 breeds. The KEGG analysis results showed that the targeted genes of differentially expressed miRNAs were mainly involved in some metabolic pathways and signaling pathways related to MG development, milk protein, and fat synthesis. The findings in the study can improve our understanding of the roles of miRNAs in the development and lactation of MG in sheep.
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Affiliation(s)
- Z Y Hao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - J Q Wang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
| | - Y L Luo
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - X Liu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - S B Li
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - M L Zhao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - X Y Jin
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - J Y Shen
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - N Ke
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Y Z Song
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - L R Qiao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
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Shen JY, Ding H, Zhou J. Successful resolution of skin ulceration by itraconazole in an immunocompetent elderly patient. Niger J Clin Pract 2020; 23:270-272. [PMID: 32031105 DOI: 10.4103/njcp.njcp_245_19] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
A 63-year-old patient was presented with faciocervical erythema and ulcers of 3 months duration. Pathological examination showed infiltration of inflammatory cells. Pathogenic microorganism cultivation was negative. However, empirical therapy with itraconazole proved effective.
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Affiliation(s)
- J Y Shen
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Shangcheng Qu, Hangzhou, China
| | - H Ding
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Shangcheng Qu, Hangzhou, China
| | - J Zhou
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Shangcheng Qu, Hangzhou, China
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9
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Shen JY. [What do we know on gestational pulmonary hypertension]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:926-928. [PMID: 30572398 DOI: 10.3760/cma.j.issn.0253-3758.2018.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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Yang ZB, Niu JD, Ma Y, Li JN, Shen JY, Yao M. [Clinical application of computed tomography angiography and three-dimensional reconstruction in repairing high-voltage electrical burn wounds in necks, shoulders, axillas, and upper arms with tissue flaps]. Zhonghua Shao Shang Za Zhi 2018; 34:874-880. [PMID: 30585051 DOI: 10.3760/cma.j.issn.1009-2587.2018.12.011] [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
Objective: To explore the application value of computed tomography angiography (CTA) and three-dimensional reconstruction in repairing high-voltage electrical burn wounds in necks, shoulders, axillas, and upper arms with tissue flaps. Methods: From December 2014 to December 2018, 12 patients with high-voltage electrical burns in necks, shoulders, axillas, and upper arms were hospitalized. The size of wounds ranged from 13 cm×10 cm to 32 cm×15 cm after complete debridement. Before tissue flap repair, the subclavian artery-axillary artery-brachial artery and their branches were examined by CTA. The main target vessels and their branches were conducted by three-dimensional reconstruction, and the development of the axis vessels for the tissue flaps planning to dissect and their branches were observed. For wounds in upper arms, amputation stump bone exposed wounds, and wounds in axillas and the anterior, the latissimus dorsi myocutaneous flap is the first choice for repair, if the thoracodorsal artery and internal and external branches are well developed according to CTA examination. Latissimus dorsi myocutaneous flaps were used in 6 patients with the area of myocutaneous flap ranging from 16 cm×12 cm to 32 cm×17 cm. All the donor sites were covered by split-thickness skin graft of thighs. For large wounds in occiputs, necks, and scapulas, the contralateral lower trapezius myocutaneous flap is the first choice for repair, if the superficial descending branch and deep branch of the contralateral transverse cervical artery are well developed according to CTA examination. For small wounds in necks and scapulas, the ipsilateral lower trapezius myocutaneous flap can be used for repair, if the superficial descending branch of the ipsilateral transverse cervical artery is well developed according to CTA examination. Lower trapezius myocutaneous flaps were used in 4 patients with the area of myocutaneous flap ranging from 18 cm×12 cm to 25 cm×17 cm. The donor site of one patient was sutured directly and the donor site of the other 3 patients was covered by split-thickness skin graft of thighs. For wounds in the posteromedial side of upper arms and the anterior side of axillas, the lateral thoracic skin flaps can be used for repair, if the latissimus dorsi myocutaneous flap can not be utilized for reasons of back burn or no muscle is needed for dead space, when the blood supply of side chest skin is reliable according to CTA examination. Lateral thoracic skin flaps were used in 2 patients with the area of skin flap ranging from 16 cm×12 cm to 17 cm×14 cm. The donor site of one patient was sutured directly and the donor site of the other one patient was covered by split-thickness skin graft of thigh. Results: During the operation of tissue flap repair in 12 patients, the orientation and starting position of the axis vessels were consistent with those observed by CTA examination before operation. All the tissue flaps survived after operation. During follow-up of 1 to 24 months, the patients were satisfied with no serious scar contracture affecting the function nor secondary infection or chronic ulcer. Conclusions: CTA and its three-dimensional reconstruction technique can clearly reconstruct the subclavian artery-axillary artery-brachial artery and their branches before repair of high-voltage burn wounds in necks, shoulders, axillas, and upper arms. It can be used to observe whether the vessels are embolized or not and the starting position and orientation of blood vessels, which can provide an important reference for the selection of tissue flap transplantion.
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Affiliation(s)
- Z B Yang
- Department of Burns and Plastic Surgery, General Hospital of Ningxia Medical University, Yinchuan 750004, China
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Yang ZB, Shen JY, Mi KD, Ma Q, Wu YS, Yao M. [Study on the application of dexmedetomidine combined with remifentanil in dressing change of conscious patients with non-intubation in burn intensive care unit]. Zhonghua Shao Shang Za Zhi 2018; 34:707-713. [PMID: 30369139 DOI: 10.3760/cma.j.issn.1009-2587.2018.10.011] [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
Objective: To observe the analgesic and sedative effect and safety of application of dexmedetomidine combined with remifentanil in dressing change of conscious patients with non-intubation in burn intensive care unit. Methods: Forty patients conforming to the study criteria hospitalized in our burn intensive care unit from April 2015 to April 2017 were selected. Prospective, randomized, and double-blind method was used for the design. Patients were divided into dexmedetomidine group and dexmedetomidine+ remifentanil group according to the random number table, with 20 cases in each group. Patients in the two groups were respectively given corresponding drugs during dressing change. The frequency and time of dressing change, Verbal Rating Scale (VRS) score of patients during dressing change (at drug administration for 25 minutes) and after dressing change (25 min after dressing change), Ramsay Sedation Score (RSS) during dressing change, satisfaction level for anesthesia of the patients and physicians after dressing change, dosage of remifentanil, and various adverse effects during and after dressing change were recorded. The heart rate, mean arterial blood pressure (MAP), respiratory rate, and pulse oxygen saturation (SpO2) before drug administration and at 10, 15, and 25 minutes after drug administration were also recorded. Data were processed with analysis of variance for repeated measurement, t test, chi-square test, and Fisher's exact probability test. Results: (1) Totally 38 patients completed the trial. There were no statistically significant differences between patients in two groups in gender, American Association of Anesthesiologist Grading, age, weight, and total burn area (χ2=0.230, 0.146, t=0.224, 0.351, 0.367, P>0.05). (2) The frequency of dressing change of patients in two groups were both 48 times. The time of dressing change and VRS scores during dressing change of patients in two groups were similar (t=0.821, 1.522, P>0.05). The VRS score of patients in dexmedetomidine+ remifentanil group after dressing change was (3.1±0.4) points, obviously lower than (3.8±0.8) points in remifentanil group (t=2.213, P<0.05). The RSS, satisfaction level scores for anesthesia of the patients and physicians after dressing change in dexmedetomidine+ remifentanil group were (3.13±0.32), (3.44±0.41), and (3.13±0.25) points, respectively, obviously better than (1.82±0.24), (2.71±0.23), (2.53±0.41) points in remifentanil group (t=2.226, 2.684, 7.702, P<0.01). The dosage of remifentanil of patients in dexmedetomidine+ remifentanil group was (282±19) μg, obviously less than (340±31) μg in remifentanil group (t=9.896, P<0.01). There were no statistically significant differences between patients in two groups in rates of respiratory inhibition and hypotension (χ2=0.211, 0.154, P>0.05). Compared with those in remifentanil group, the rates of nausea, vomiting, and other gastrointestinal symptoms of patients in dexmedetomidine+ remifentanil group were obviously reduced (P<0.05), but the rate of bradycardia was obviously increased (χ2=6.008, P<0.05). (3) There were no statistically significant differences between patients in two groups in heart rate, MAP, respiratory frequency, and SpO2 before drug administration (t=0.444, 0.892, 1.059, 1.039, P>0.05). The heart rates of patients in dexmedetomidine+ remifentanil group at 10, 15, and 25 minutes after drug administration were (83±11), (78±10), and (82±14) times per minute, respectively, significantly lower than (95±10), (87±12), and (89±12) times per minute in remifentanil group (t=5.592, 3.992, 2.630, P<0.05 or P<0.01). The MAP of patients in dexmedetomidine+ remifentanil group at 15 and 25 minutes after drug administration were (69.4±3.1) and (73.8±2.2) mmHg (1 mmHg=0.133 kPa), respectively, significantly lower than (75.4±3.0) and (78.1±3.5) mmHg in remifentanil group (t=9.181, 7.206, P<0.01). There were no statistically significant differences between patients in two groups in respiratory frequency at each time point after drug administration (t=1.489, 1.862, 1.963, P>0.05). The SpO2 of patients in dexmedetomidine+ remifentanil group at 15 minutes after drug administration was 0.972±0.018, obviously lower than 0.979±0.015 in remifentanil group (t=2.070, P<0.05). Conclusions: Application of remifentanil with small dosage has effective analgesia for conscious burn patients with non-intubation during dressing changes, however, adverse effects such as nausea and vomiting are likely to occur. Remifentanil combined with dexmedetomidine not only guarantee the analgesic effect, but also reduce the dosage of analgesics, improve the sedative effect and satisfaction of the patients for anesthesia, and reduce various adverse effects. However, it will increase the incidence of bradycardia and has some inhibition effect on circulation at the same time.
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Affiliation(s)
- Z B Yang
- Department of Burns and Plastic Surgery, General Hospital of Ningxia Medical University, Yinchuan 750004, China
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12
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Shen JY, Ma Q, Yang ZB, Gong JJ, Wu YS. [Effects of arnebia root oil on wound healing of rats with full-thickness skin defect and the related mechanism]. Zhonghua Shao Shang Za Zhi 2017; 33:562-567. [PMID: 28926878 DOI: 10.3760/cma.j.issn.1009-2587.2017.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the effects of arnebia root oil on wound healing of rats with full-thickness skin defect, and to explore the related mechanism. Methods: Eighty SD rats were divided into arnebia root oil group and control group according to the random number table, with 40 rats in each group, then full-thickness skin wounds with area of 3 cm×3 cm were inflicted on the back of each rat. Wounds of rats in arnebia root oil group and control group were treated with sterile medical gauze and bandage package infiltrated with arnebia root oil gauze or Vaseline gauze, respectively, with dressing change of once every two days. On post injury day (PID) 3, 7, 14, and 21, 10 rats in each group were sacrificed respectively for general observation and calculation of wound healing rate. The tissue samples of unhealed wound were collected for observation of histomorphological change with HE staining, observation of expressions of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) with immunohistochemical staining, and determination of mRNA expressions of VEGF and bFGF with real time fluorescent quantitive reverse transcription polymerase chain reaction. Data were processed with analysis of variance of factorial design, t test, and Bonferroni correction. Results: (1) On PID 3, there were a few secretions in wounds of rats in the two groups. On PID 7, there were fewer secretions and more granulation tissue in wounds of rats in arnebia root oil group, while there were more secretions and less granulation tissue in wounds of rats in control group. On PID 14, most of the wounds of rats in arnebia root oil group were healed and there was much red granulation tissue in unhealed wounds, while part of wounds of rats in control group was healed and there were a few secretions and less granulation tissue in unhealed wounds. On PID 21, wounds of rats in arnebia root oil group were basically healed, while there were still some unhealed wounds of rats in control group. (2) On PID 3 and 7, the wound healing rates of rats in arnebia root oil group were (39±5)% and (46±4)% respectively, which were close to (34±3)% and (44±4)% of rats in control group (with t values respectively 0.807 and 0.481, P values above 0.05). On PID 14 and 21, the wound healing rates of rats in arnebia root oil group were (76±4)% and (90±3)% respectively, which were significantly higher than (60±6)% and (73±5)% of rats in control group (with t values respectively 2.308 and 3.072, P<0.05 or P<0.01). (3) On PID 3, 7, and 14, granulation tissue, fibroblasts, and nascent capillaries in unhealed wound tissue of rats in the two groups both gradually increased, and more ranulation tissue, fibroblasts, and nascent capillaries were seen in unhealed wound tissue of rats in arnebia root oil group. On PID 21, granulation tissue, fibroblasts, and nascent capillaries in unhealed wound tissue of rats in the two groups both gradually decreased. (4) On PID 3, 7, and 14, the numbers of VEGF positive cells and bFGF positive cells in unhealed wound tissue of rats in the two groups both gradually increased; there were more VEGF positive cells and bFGF positive cells in unhealed wound tissue of rats in arnebia root oil group than those in control group. On PID 21, positive expressions of VEGF and bFGF both decreased in unhealed wound tissue of rats in the two groups. (5) On PID 3, 7, and 14, mRNA expressions of VEGF in unhealed wound tissue of rats in arnebia root oil group were higher than those of control group (with t values from 2.967 to 4.173, P values below 0.01). On PID 21, mRNA expression of VEGF in unhealed wound tissue of rats in arnebia root oil group was lower than that of control group (t=-4.786, P<0.001). From PID 3 to 21, mRNA expressions of bFGF in unhealed wound tissue of rats in arnebia root oil group were higher than those of control group (with t values from 2.326 to 4.702, P<0.05 or P<0.01). Conclusions: Arnebia root oil can promote wound healing of rats with full-thickness skin defect, which may relate to increasing expressions of VEGF and bFGF.
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Affiliation(s)
- J Y Shen
- Department of Burns and Plastic Surgery, General Hospital of Ningxia Medical University, Yinchuan 750004, China
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Song YP, Liu ZM, Fan YJ, Fan XF, Zhang Y, Li XS, Zheng H, Zhang N, Shen JY, Shen CF, Yang JL, Ren GG, Ren FD. [Effect of liraglutide on expression of insulin-like growth factor 2-mRNA binding protein 3 in liver in rats with non-alcoholic fatty liver disease]. Zhonghua Gan Zang Bing Za Zhi 2016; 24:614-616. [PMID: 27788710 DOI: 10.3760/cma.j.issn.1007-3418.2016.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- Y P Song
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
| | - Z M Liu
- Changzheng Hospital, The Second Military Medical University, Shanghai 200003, China
| | - Y J Fan
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
| | - X F Fan
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
| | - Y Zhang
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
| | - X S Li
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
| | - H Zheng
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
| | - N Zhang
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
| | - J Y Shen
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
| | - C F Shen
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
| | - J L Yang
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
| | - G G Ren
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
| | - F D Ren
- Central Hospital of Minhang District, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China
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Xie SD, Xu CY, Shen JG, Jiang ZN, Shen JY, Wang LB. HER 2/neu protein expression in gastric cancer is associated with poor survival. Mol Med Rep 2015; 12:4794. [PMID: 26096440 DOI: 10.3892/mmr.2015.3955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Accepted: 08/19/2009] [Indexed: 11/05/2022] Open
Abstract
Mol Med Rep 2: [Related article:] 943–946, 2009; DOI: 10.3892/mmr_00000196
After the publication of the article, the authors noted that there was an error regarding the author list on the Pubmed website. J.Y. Shen was erroneously omitted from the data submitted for publication on the Pubmed website. We apologize for the oversight and possible misunderstanding.
The correct author list is the list that was published in PDF format on the Spandidos Publications website and in print, which is as follows: S.D. Xie1*, C.Y. Xu1,3*, J.G. Shen1, Z.N. Jiang2,3, J.Y. Shen1 and L.B. Wang1.
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Affiliation(s)
- S D Xie
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, P.R. China
| | - C Y Xu
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, P.R. China
| | - J G Shen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, P.R. China
| | - Z N Jiang
- Department of Pathology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, P.R. China
| | - J Y Shen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, P.R. China
| | - L B Wang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, P.R. China
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Xie SD, Xu CY, Shen JG, Jiang ZN, Shen JY, Wang LB. HER 2/neu protein expression in gastric cancer is associated with poor survival. Mol Med Rep 2012; 2:943-6. [PMID: 21475925 DOI: 10.3892/mmr_00000196] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The presence of HER 2/neu has been reported in gastric cancer, but its impact on patient survival remains unclear. The purpose of this study was to investigate the expression of HER 2/neu in gastric cancer. A total of 218 paired resected gastric cancer and corresponding normal specimens were collected. HER 2/neu protein expression was assessed by immunohistochemical staining. The correlation between HER 2/neu expression and patient clinicopathological parameters was evaluated and the prognostic significance of HER 2/neu expression was assessed by univariate and multivariate analyses. Forty-one out of 218 (18.8%) gastric cancer specimens showed HER 2/neu-positive expression. No relationship was found between membranous HER 2/neu expression and clinicopathological parameters. However, HER 2/neu expression was correlated with poorer overall survival (p<0.001). In multivariate analysis, HER 2/neu expression was a significant independent prognostic predictor of gastric cancer (p<0.001), and was associated with poor survival in gastric cancer patients. These data indicate that HER 2/neu may play a major role in the therapeutic management of gastric cancer.
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Affiliation(s)
- S D Xie
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, P.R. China
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Zhang XP, Jiang J, Cheng QH, Ye Q, Li WJ, Zhu H, Shen JY. Protective effects of Ligustrazine, Kakonein and Panax Notoginsenoside on the small intestine and immune organs of rats with severe acute pancreatitis. Hepatobiliary Pancreat Dis Int 2011; 10:632-7. [PMID: 22146628 DOI: 10.1016/s1499-3872(11)60107-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Severe acute pancreatitis (SAP) is characterized by fatal pathogenic conditions and a high mortality. It is important to study SAP complicated with multiple organ injury. In this study we compared the protective effects of three traditional Chinese medicines (Ligustrazine, Kakonein and Panax Notoginsenoside) on the small intestine and immune organs (thymus, spleen and lymph nodes) of rats with SAP and explored their mechanism of action. METHODS One hundred forty-four rats with SAP were randomly divided into model control, Ligustrazine-treated, Kakonein-treated, and Panax Notoginsenoside-treated groups (n=36 per group). Another 36 normal rats comprised the sham-operated group. According to the different time points after operation, the experimental rats in each group were subdivided into 3-, 6- and 12-hour subgroups (n=12). At various time points after operation, the mortality rate of rats and pathological changes in the small intestine and immune organs were recorded and the serum amylase levels were measured. RESULTS Compared to the model control groups, the mortality rates in all treated groups declined and the pathological changes in the small intestine and immune tissues were relieved to different degrees. The serum amylase levels in the three treated groups were significantly lower than those in the model control group at 12 hours. The pathological severity scores for the small intestinal mucosa, thymus and spleen (at 3 and 12 hours) in the Ligustrazine-treated group, for the thymus (at 3 and 12 hours) and spleen (at 3 and 6 hours) in the Kakonein-treated group, and for the thymus (at 3 hours) and spleen (at 3 hours) in the Panax Notoginsenoside-treated group were significantly lower than those in the model control group. The pathological severity scores of the small intestinal mucosa (at 6 and 12 hours) and thymus (at 6 hours) in the Ligustrazine-treated group were significantly lower than those in the Kakonein- and Panax Notoginsenoside-treated groups. CONCLUSIONS All the three traditional Chinese drugs significantly alleviated the pathological changes in the small intestine and immune organs of SAP rats. Ligustrazine was the most effective one among them.
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Affiliation(s)
- Xi-Ping Zhang
- Department of General Surgery, Hangzhou First People's Hospital, Hangzhou 310006, China.
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17
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Leng JH, Yao HP, Shen JY, Wang KY, Wang ZW, Zhuo GC. [Serum IL-18 levels in mice with collagen-induced arthritis treated by recombinant adenovirus containing mIL-18BP and mIL-4 fusion gene]. Zhejiang Da Xue Xue Bao Yi Xue Ban 2011; 40:195-199. [PMID: 21488217 DOI: 10.3785/j.issn.1008-9292.2011.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To investigate serum IL-18 levels in mice with collagen-induced arthritis treated by recombinant adenoviral vector containing mIL-18BP and mIL-4 fusion gene (AdmIL-18BP/mIL-4). METHODS Arthritis was induced by injection of collagen in male DBA-1/BOM mice. Mice with collagen-induced arthritis (CIA) were intra-articularly injected with 10(7)pfu/6μL of AdmIL-18BP/mIL-4; and in mice of control groups AdLacZ or PBS were used. The animals were sacrificed at week 1, 2 and 4 after treatment. Serum IL-18 levels were determined by ELISA at the different time points. RESULT The mean serum levels of IL-18 at weeks 1, 2, and 4 after injection of AdmIL-18BP/mIL-4 were (36.5±5.4)ng/L, (32.5 ± 3.2) ng/L and (28.7 ±2.9)ng/L, respectively, which were significantly lower than those at the same time point of AdLacZ group [(66.2 ±5.1)ng/L, (69.2 ±4.2)ng/L and (77.7 ±3.9)ng/L] and PBS group [(67.3 ±7.1)ng/L, (71.9 ±1.8)ng/L and (78.7±4.1)ng/L] (P<0.01 at all time points). In the therapy group, there were no significant differences in the mean serum concentrations of IL-18 at all time points. CONCLUSION The serum IL-18 levels in CIA mice are down-regulated by treatment of recombinant adenovirus containing mIL-18BP and mIL-4 fuse gene, which might be a promising therapeutic strategy for rheumatoid arthritis.
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Affiliation(s)
- Jian-Hang Leng
- Clinical Laboratory, the First Hangzhou People's Hospital, Hangzhou 310006, China.
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Xu CY, Guo JL, Jiang ZN, Xie SD, Shen JG, Shen JY, Wang LB. Prognostic role of estrogen receptor alpha and estrogen receptor beta in gastric cancer. Ann Surg Oncol 2010; 17:2503-9. [PMID: 20339947 DOI: 10.1245/s10434-010-1031-2] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2009] [Indexed: 12/12/2022]
Abstract
BACKGROUND The presence of estrogen receptor alpha (ERalpha) and estrogen receptor beta (ERbeta) have been reported in cell and tissue level in gastric cancer, but its impact on patients' survival remains unclear. This study was designed to investigate the expression level of ERalpha and ERbeta and to assess clinical significance of ERalpha and ERbeta expression in gastric cancer. METHODS The expression level of ERalpha and ERbeta were assessed by reverse-transcriptase polymerase chain reaction (RT-PCR) in 35 surgically resected gastric cancer and corresponding normal tissues and by immunohistochemical staining in 211 surgically resected gastric cancer and match normal tissues. RESULTS The expression level between ERalpha mRNA expression in gastric cancer tissues and match normal tissues had no statistically significant difference. The ERbeta mRNA level in normal tissues was significantly higher than that observed in gastric cancer tissues (P = 0.001). Neither ERalpha nor ERbeta mRNA expression levels had significant correlation with clinicopathologic parameters. Forty-eight of 211 (22.7%) gastric cancer tissues showed positive expression of ERalpha and ERbeta detected in gastric cancer. ERalpha-positive expression correlated with poorer overall survival (P = 0.014), as did the absence of ERbeta expression in patients with gastric cancer (P = 0.001). In multivariate analysis, the positive expression of ERalpha and the absence of ERbeta were significant independent prognostic factors for overall survival (hazard ratio 2.159, P = 0.013, and hazard ratio 2.016, P = 0.025 respectively). CONCLUSIONS Our results indicated that ERalpha and ERbeta were expressed in both gastric cancer and corresponding normal tissues. ERalpha expression and the absence of ERbeta expression are associated with poor survival.
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Affiliation(s)
- C Y Xu
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Xu CY, Shen JG, Shen JY, Chen WJ, Wang LB. Ulcer size as a novel indicator marker is correlated with prognosis of ulcerative gastric cancer. Dig Surg 2009; 26:312-6. [PMID: 19657193 DOI: 10.1159/000231881] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2008] [Accepted: 05/25/2009] [Indexed: 12/22/2022]
Abstract
AIMS The objective of this study was to assess the significance of ulcer size for the survival of gastric cancer patients. METHODS A total of 260 patients with ulcerative gastric cancer who had undergone curative resection were reviewed. The diameter of the malignant ulcer was measured. Patients were divided into group U1 (< or =3 cm) and group U2 (>3 cm) according to the diameter of the ulcer. The prognostic significance of ulcer size was assessed by uni- and multivariate analyses. RESULTS Patient survival was correlated with age, gender, tumor location, tumor size, ulcer size, serosal invasion, node involvement and synchronism distant metastasis. The 5-year overall survival rate in U1 patients was 84.3% as compared with 67.5% in U2 patients (p < 0.001), and the 5-year recurrence-free survival rates were 82.9% for group U1 and 62.5% for group U2 (p = 0.001). Multivariate analysis revealed that ulcer size is an independently significant predictive factor for survival rates (overall: hazard ratio 1.222, p = 0.003; recurrence-free: hazard ratio 1.205, p = 0.006). CONCLUSION Ulcer size might be a potential indicator for advanced disease and the use of minimal local treatments must be considered carefully in larger ulcer size patients.
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Affiliation(s)
- C Y Xu
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University College of Medicine, Hangzhou 310016, China
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Kang CA, Kim MR, Shen JY, Cho IK, Park BJ, Kim IS, Shim JH. Supercritical fluid extraction for liquid chromatographic determination of pyrazosulfuron-ethyl in soils. Bull Environ Contam Toxicol 2006; 76:745-51. [PMID: 16786443 DOI: 10.1007/s00128-006-0983-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2005] [Accepted: 03/08/2006] [Indexed: 05/10/2023]
Affiliation(s)
- C A Kang
- Division of Applied Bioscience and Biotechnology, Institute of Agricultural Science and Technology, College of Agriculture and Life Science, Chonnam National University, Gwangju, South Korea
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Nielsen ME, Høi L, Schmidt AS, Qian D, Shimada T, Shen JY, Larsen JL. Is Aeromonas hydrophila the dominant motile Aeromonas species that causes disease outbreaks in aquaculture production in the Zhejiang Province of China? Dis Aquat Organ 2001; 46:23-29. [PMID: 11592699 DOI: 10.3354/dao046023] [Citation(s) in RCA: 132] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The significance of Aeromonas hydrophila in association with disease outbreaks in aquaculture production in the Zhejiang province of China was investigated. Bacteriological examination of moribund fish and crabs resulted in 95 bacterial isolates: 88 bacterial isolates from fish and 7 isolates from crabs. PCR and traditional biochemical methods were used for identification of A. hydrophila. Out of 69 motile aeromonads, 35 isolates were identified as A. hydrophila by biochemical tests. However, 6 of those were not identified as A. hydrophila by a species specific PCR method. Serotyping revealed 2 dominant serotypes (O9 and O97) among A. hydrophila isolates. The data presented show that approximately 42% of the motile aeromonads isolated from disease outbreaks among various fish species were A. hydrophila. It is noteworthy that A. hydrophila accounted for more than 50% of the isolated aeromonands isolated from crucian carp Carassius carassius and Wuchang bream Megalobrama amblycephala with haemorrhagic septicaemia. Although this species was the most frequently isolated organism from internal organs of diseased fish and crabs in the present study, other motile Aeromonas spp. were also found. The PCR assay was useful in preventing misidentification of A. hydrophila, which may occur when only phenotypic tests are employed.
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Affiliation(s)
- M E Nielsen
- Department of Veterinary Microbiology, The Royal Veterinary and Agricultural University, Frederiksberg, Denmark.
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Abstract
A prospective echocardiographic and clinical study was performed on 84 Chinese patients with systemic lupus erythematosus (SLE) and 99 controls to investigate the prevalence and the mechanism of pulmonary hypertension (PH) in SLE. Comparison between Doppler estimation and catheterization measurement was made in 12 cases to validate the predictive method. Compared to normal subjects, lupus patients had significantly increased systolic pulmonary artery pressure (SPAP) (29.59 +/- 12.52 vs 19.64 +/- 5.82, P < 0.001), mean pulmonary artery pressure (MPAP) (15.11 +/- 7.36 vs 10.21 +/- 4.72, P < 0.001) and total pulmonary resistance (TPR) (315.85 +/- 190.65 vs 220.37 +/- 55.92, P < 0.001). Nine of the 84 patients presented PH, defined as SPAP < 30 mmHg and MPAP > 20 mmHg. Pulmonary hypertensive patients had higher serum endothelin (ET) than non-pulmonary hypertensive patients, were more commonly in active stages, and presented Raynaud's phenomenon and rheumatoid factors. ET level was correlated with echocardiographic pulmonary pressure. Pulmonary hypertension commonly occurs in Chinese patients with SLE (11%), and it correlates with the lupus activity and the elevation of serum endothelin.
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Affiliation(s)
- J Y Shen
- Department of Cardiology, Ren Ji Hospital, Shanghai Second Medical University, People's Republic of China
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Liao CL, Lin YL, Shen SC, Shen JY, Su HL, Huang YL, Ma SH, Sun YC, Chen KP, Chen LK. Antiapoptotic but not antiviral function of human bcl-2 assists establishment of Japanese encephalitis virus persistence in cultured cells. J Virol 1998; 72:9844-54. [PMID: 9811720 PMCID: PMC110496 DOI: 10.1128/jvi.72.12.9844-9854.1998] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/1998] [Accepted: 09/09/1998] [Indexed: 11/20/2022] Open
Abstract
Upon infection of Japanese encephalitis virus (JEV), baby hamster kidney (BHK-21) and Chinese hamster ovary (CHO) cells were killed by a mechanism involved in apoptosis. While readily established in a variety of cell lines, JEV persistence has never been successfully instituted in BHK-21 and CHO cells. Since stable expression of human bcl-2 in BHK-21 cells has been shown to delay JEV-induced apoptosis, in this study we investigated whether JEV persistence could be established in such cells. When constitutively expressing bcl-2, but not its closest homolog, bcl-XL, following a primary lytic infection, approximately 5 to 10% of BHK-21 and CHO cells became persistently JEV infected during a long-term culture. From the persistent bulks, several independent clones were selected and expanded to form stable cell lines that continuously produced infectious virus without marked cytopathic effects (CPE). Among these stable cell lines, the truncated nonstructural protein 1 (NS1) was also detected and was indistinguishable from the NS1 truncations previously observed in JEV-persistent murine neuroblastoma N18 cells. However, the stable expression of NS1 alone, regardless of whether it was truncated or full length, failed to render the engineered cells persistently infected by JEV, implying that aberrant NS1 proteins were likely a consequence of, rather than a cause for, the viral persistence. Enforced bcl-2 expression, which did not affect virus replication and spread during the early phase of cytolytic infection, appeared to attain JEV persistence by restriction of virus-induced CPE. Our results suggest that it is the antiapoptotic, rather than the antiviral, effect of cellular bcl-2 which plays a role in the establishment of JEV persistence.
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Affiliation(s)
- C L Liao
- Department of Microbiology and Immunology, Taiwan, Republic of China.
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Calleja EM, Shen JY, Lesser M, Grady RW, New MI, Giardina PJ. Survival and morbidity in transfusion-dependent thalassemic patients on subcutaneous desferrioxamine chelation. Nearly two decades of experience. Ann N Y Acad Sci 1998; 850:469-70. [PMID: 9668587 DOI: 10.1111/j.1749-6632.1998.tb10524.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- E M Calleja
- Division of Pediatric Hematology, New York Hospital/Cornell University Medical College, New York 10021, USA
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25
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Shen JY, Ding TY, Zhang YX, Mu GG. Real-time pattern recognition system based on a bipolar winner-take-all model with a threshold. Opt Lett 1994; 19:2158-2160. [PMID: 19855772 DOI: 10.1364/ol.19.002158] [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] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A threshold is added to recognize an input pattern that has too few similarities to be one of the memory patterns. A real-time pattern recognition system based on the improved model is given. The unipolar optical pattern recognition system has all the characteristics of a fully bipolar winner-take-all model and has illumination invariance. A liquid-crystal spatial light modulator is used as a real-time input device, and a mask and a lens array perform the threshold and weighted sums of the input pattern. Some experimental results are also shown.
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Yang YZ, Guo Q, Zhou TS, Zhang J, Li L, Jin PY, Wu WZ, Shen JY, Yang JH, Peng BZ. Electrophysiological and pathological observations on experimental coxsackie B-3 viral myocarditis in mice. Chin Med J (Engl) 1993; 106:100-4. [PMID: 8389271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Electrophysiological action of right ventricular myocardium examined by standard intracellular microelectrode technique and real-time microcomputer data processor system and histological and ultrastructural changes of myocardium in BALB/c mice infected with coxsackie B-3 virus from 3 days to 9 months were observed. It was found that electrophysiologic parameters of action potential changed very quickly at the early stage (3 days to 1 month) of the disease. Those abnormalities became most apparent by the 5-30th day, and 7 patterns of abnormal action potential occurred frequently within the same period. These changes were basically parallel to the myocardial lesions. At the late stage (3-9 months) the electrophysiological parameters were nearly normal, while the myocardial lesions decreased gradually. However, the abnormal patterns of action potential were still detected, even though they were improved gradually. The results suggest that myocardial damages caused by viral infection may lead to changes of cardiac electric action, which may be one of the factors in arrhythmias in the episode of viral myocarditis.
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Affiliation(s)
- Y Z Yang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Shanghai Medical University
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27
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Abstract
The effects of dexamethasone on cultured rat beating heart cells experimentally infected with coxsackievirus B2 were investigated at an early stage (1-3 days) post challenge. Changes in the release of the cardiac enzyme, aspartate amino-transferase (AST), beating %, cytopathic effect (CPE), virus titre, ultrastructure and alterations of the electrical activity were evaluated. The protective effects of dexamethasone on infected cells were abolished except the release of AST at 5 days post infection. These results suggest that steroids may benefit patients with severe myocarditis if conventional therapy for protection of the myocardium and modulation of immunologic function are concomitantly given.
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Affiliation(s)
- Y Z Yang
- Department of Cardiology, Zhong Shan Hospital, Shanghai Medical University, P.R.C
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28
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Yang YZ, Guo Q, Jin PY, Yan GC, Pan BS, Pu SY, Chen HZ, Shen JY, Pang BZ, Gong ZX. [Effect of dexamethasone on Coxsackie B-2 virus-infected rat beating heart cells in culture]. Zhongguo Yao Li Xue Bao 1989; 10:346-9. [PMID: 2560313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The effects of dexamethasone (Dex) on cultured rat beating heart cells infected with 100 TCID-50 Coxsackie virus B-2 (CB2V) were observed. The beating % began to decrease in the infected group 2 or 3 d post-challenge. Meanwhile, the cytopathic effect (CPE) appeared rapidly from 1+ to 3+. In the infected and Dex-treated group 1 h after inoculation, the beating % and CPE in the whole flask were significantly higher and less, respectively, than that in the group infected (P less than 0.05) at the same intervals. At 5 d after challenge, the beating % in the whole flask was significantly higher than that in the infected group. The cardiac enzyme-aspartate aminotransferase (AST) in the infected group was higher than that in the infected and Dex-treated group (P less than 0.01) through 3-5 d post-challenge. Moreover, the AST levels in these 2 groups were also higher than that in the uninfected group, Dex control group at the same intervals (P less than 0.01). Ultrastructural findings were parallel to the results of CPE through 1-5 d post-challenge in these 4 groups. It is suggested that the protective effect of Dex on cultured beating heart cells infected with CB2V occurred in the early stages after infection. It is surmised that steroids can probably save the lives of patients with severe myocarditis if the conventional therapy for protecting the myocardium and improving immunity were administered together.
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29
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Yang YZ, Yang XY, Guo Q, Jin PY, Chen HZ, Shen JY, Pen BZ, Gong ZX, Chen WZ. [Cytotoxic effects of changrolin, lidocaine and amiodarone on ultrastructure of cultured rat beating cardiac myocytes]. Zhongguo Yao Li Xue Bao 1989; 10:46-8. [PMID: 2816401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Ultrastructural and morphological alterations of cultured rat beating cardiac myocytes treated with changrolin (CRL), lidocaine (Lid), and amiodarone (Ami) were studied. After the cultures were treated with CRL 100 micrograms/ml for 24 h, the beating of the myocytes stopped, the configuration and fine structure were destroyed, while the nuclei showed pyknotic deformation and reduced in size. The membrane and structures of mitochondria were disrupted and myofibrils fragmented and disrupted. In addition, a lot of vacuoles with characteristic dense particles were found in the cytoplasm. Similar alterations were seen when Lid 1000 micrograms/ml and Ami 50 micrograms/ml were added to the cultures. Normal beating networks of myocytes were examined under inverted microscopy after the cultured cells were treated with CRL 25 micrograms/ml, Lid 250 micrograms/ml or Ami 6.25 micrograms/ml. The ultrastructure of some regions of the myocytes showed very slight damage. The results indicated that the dosage of CRL and Lid generally used in anti-arrhythmic therapy basically exerted no harm to myocytes. However, caution should be taken when Ami was given intravenously, since its effective serum concentration was close to the dosage which could cause slight damage to the ultrastructure of cultured cells.
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30
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Liu YG, Yang YD, Huang GQ, Shen JY, Han PR, Li JH. The effect of CuIUD on estradiol receptor in the endometrium of rat--an autoradiographic study. J Tongji Med Univ 1988; 8:155-9. [PMID: 3230592 DOI: 10.1007/bf02887839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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31
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Shen JY, Barnes PF, Rea TH, Meyer PR. Immunohistology of tuberculous adenitis in symptomatic HIV infection. Clin Exp Immunol 1988; 72:186-9. [PMID: 3261659 PMCID: PMC1541541] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Monoclonal antibodies and immunoperoxidase staining were used to characterize the cellular subpopulations in lymph nodes from 10 patients with tuberculous lymphadenitis, seven of whom had symptomatic human immunodeficiency virus (HIV) infection. CD4+ cells were significantly fewer in nodes of patients with HIV infection than in those of immunocompetent patients. CD8+ cells were distributed throughout the granuloma in patients with HIV infection, but confined to the periphery in normal hosts. Blastoid Ta1+ cells, putatively antigen-reactive T lymphocytes, were seen in immunocompetent patients but not in those with HIV infection, suggesting that these cells fail to mature appropriately in the latter group. The immunopathological features noted above provide preliminary evidence that the cell-mediated immune response to tuberculosis is abnormal in patients with HIV infection, and may in part explain both the severe and the unusual manifestations of tuberculosis in these individuals.
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Affiliation(s)
- J Y Shen
- Department of Medicine, University of Southern California, School of Medicine, Los Angeles 90033
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32
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Miller RA, Shen JY, Rea TH, Harnisch JP. Treatment of chronic erythema nodosum leprosum with cyclosporine A produces clinical and immunohistologic remission. Int J Lepr Other Mycobact Dis 1987; 55:441-9. [PMID: 3309088] [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: 01/05/2023]
Abstract
We have treated three leprosy patients suffering from chronic, steroid-dependent erythema nodosum leprosum (ENL) with cyclosporine A (CsA). Excellent results were obtained in two patients. Extra-cutaneous manifestations of the reactional state were completely suppressed, and the development of new skin lesions was sharply curtailed. Immunohistologic abnormalities characteristic of active ENL were corrected. Lymphocyte subpopulations and anti-mycobacterial antibody levels in peripheral blood were unaffected. The third patient showed only a partial response to CsA, but satisfactory blood levels were never obtained in this individual because of dose-related gastrointestinal toxicity. The effectiveness of CsA in the treatment of ENL is consistent with the hypothesis that aberrant activation of a subset of T-helper cells is involved in the pathogenesis of this reaction. CsA may have a role in the treatment of chronic ENL that has failed to respond to conventional therapeutic modalities.
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Affiliation(s)
- R A Miller
- Department of Medicine, Pacific Medical Center, Seattle, Washington 98144
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33
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Shen JY, Hofman FM, Gunter JR, Modlin RL, Rea TH. In situ identification of activated Ta1+ T lymphocytes in human leprosy skin lesions. Int J Lepr Other Mycobact Dis 1987; 55:494-8. [PMID: 2443587] [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: 01/01/2023]
Abstract
Using a monoclonal antibody, anti-Ta1, that identifies antigen-activated T lymphocytes in vitro, we sought to identify activated T lymphocytes in leprosy skin lesions. Greater numbers of Ta1 positive T lymphocytes were observed in tuberculoid leprosy, lepromin skin tests, and reversal reactions as compared with lepromatous leprosy or erythema nodosum leprosum (ENL) (p less than 0.001). With a double-staining technique, we found that the majority of these activated T lymphocytes were of the helper/inducer phenotype. No differences of Ta1 positive lymphocytes were observed in the peripheral blood. The defective cell-mediated immune response in lepromatous and ENL patients correlates with, and may be related to the failure of T-helper/inducer activation or proliferation in the presence of Mycobacterium leprae.
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Affiliation(s)
- J Y Shen
- Section of Dermatology, University of Southern California School of Medicine, Los Angeles 90033
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34
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Yang YZ, Guo Q, Jin PY, Pu SY, Chen HZ, Cheng JR, Jin YX, Gong ZX, Shen JY. Effect of Astragalus membranaceus injecta on Coxsackie B-2 virus infected rat beating heart cell culture. Chin Med J (Engl) 1987; 100:595-602. [PMID: 2827966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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35
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Yang YD, Zhang LS, Chen WJ, Peng L, Shen JY, Wu XR, Wu ZB. [Morphological studies of norethisterone oxime effect on ovary in rabbits and rats]. J Tongji Med Univ 1987; 7:95-102. [PMID: 3656491 DOI: 10.1007/bf02888169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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36
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Fullmer MA, Shen JY, Modlin RL, Rea TH. Immunohistological evidence of lymphokine production and lymphocyte activation antigens in tuberculin reactions. Clin Exp Immunol 1987; 67:383-90. [PMID: 3038437 PMCID: PMC1542600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Evidence of lymphokine elaboration and lymphocyte activation was sought in tuberculin skin test reactions at 24 and 48, or 48 and 96 h in patients with active, culture-proven, pulmonary tuberculosis. Through the use of frozen sections, immunoperoxidase techniques and monoclonal antibodies, anti-interleukin 2 positive cells were found to constitute 0.4% to 0.6% of the dermal infiltrate, and keratinocyte Ia expression at 96 h was consistent with a marker for interferon-gamma production. Cells bearing the interleukin 2 receptor more than doubled in prevalence from 24 to 48 or 96 h but cells staining with Ta1, an antibody identifying activated lymphocytes, were 10% of the cells of the infiltrate at all three times. One-half of the cells of the infiltrate were OKM1-positive, presumably macrophages, perhaps reflecting the presence of active tuberculosis.
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37
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Rea TH, Shen JY, Modlin RL. Epidermal keratinocyte Ia expression, Langerhans cell hyperplasia and lymphocytic infiltration in skin lesions of leprosy. Clin Exp Immunol 1986; 65:253-9. [PMID: 2431817 PMCID: PMC1542316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Epidermal changes, Ia expression on keratinocytes, Langerhans cell hyperplasia and lymphocyte infiltration were sought in skin lesions of leprosy: 15 borderline tuberculoid (BT), six borderline lepromatous (BL), 17 lepromatous (LL), 13 erythema nodosum leprosum (ENL), six Lucio reactions and nine reversal reactions. All three changes were well developed in BT and reversal reactions. ENL showed well developed keratinocyte Ia and Langerhans cell hyperplasia, but little lymphocytic infiltration. LL and Lucio tissues had some Langerhans cell hyperplasia but little or no keratinocyte Ia or lymphocytic infiltration. BL tissues were so diverse as to suggest two distinct subgroups. These findings are consistent with the hypothesis that keratinocyte Ia expression is an immunohistological sign of a cell-mediated immune (CMI) response. However, the Ia keratinocyte expression found in BL and ENL tissues appears contrary to the undifferentiated macrophages and numerous bacilli found in the lesions. Thus, if a sign of CMI, keratinocyte Ia expression is not a measure of the effectiveness of the response.
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38
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Shen JY, Kelly DE, Hyman S, McComb JG. Intraorbital cerebrospinal fluid outflow and the posterior uveal compartment of the hamster eye. Cell Tissue Res 1985; 240:77-87. [PMID: 3995547 DOI: 10.1007/bf00217560] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An ultrastructural and tracer study was undertaken to determine normal outflow pathways of cerebrospinal fluid (CSF) at the terminal subarachnoid space (SAS) of the optic nerve. In the morphological studies, the optic nerve dura and arachnoid were found to be continuous with the sclera of the eye beyond the optic nerve SAS. The pia mater is continuous with the inner sclera and the lamina fusca of the eye. Montages and serial sections demonstrated that the distal SAS is divided into numerous tortuous channels to form an "arachnoidal trabecular meshwork". Spaces of this meshwork continue into "microcanals" which bypass the outer arachnoid barrier layers of the optic nerve meninges to reach the sclera and posterior intraorbital connective tissue. Ferritin infused into the cisterna magna entered the optic nerve SAS within 1 min and reached arachnoidal trabecular meshwork channels and the microcanals within 8 min. It then passed into intraorbital connective tissue spaces at the posterior pole of the eye. Ferritin appeared to be blocked by the lamina fusca and a newly discovered "posterior compact zone" which together prevented its entrance into the choroidal interstitium. These observations suggest that a "subarachnoidal-scleral-orbital outflow pathway" provides a route for CSF drainage from the optic nerve SAS to intraorbital connective tissue. The previously described "posterior uveal compartment" in the hamster eye (Kelly et al. 1983) appears to be relatively isolated from this subarachnoidal-scleral-orbital CSF outflow.
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39
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Shen JY. [Mini-catheters for guiding intravenous infusion in patients with acute myocardial infarction]. Zhonghua Hu Li Za Zhi 1985; 20:23-4. [PMID: 3846495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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40
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Shen JY. [Perfusional effects of extracorporeal circulation under deep hypothermia on the canine cerebral and conjunctival microcirculation]. Zhonghua Yi Xue Za Zhi 1985; 65:20-5. [PMID: 3919904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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41
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Zhong RX, Shi RR, Huang LX, Cai JL, Liu H, Shen JY, Quan HP, Yan LQ, Wu XL, Tao JY. Prevention and treatment of youth myopia by binocular near fogging. Chin Med J (Engl) 1983; 96:457-62. [PMID: 6414781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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