1
|
Huang YD, Wang T, Sun Y. [Progress of traumatic stress disorder in emergency rescue workers]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:631-634. [PMID: 34488280 DOI: 10.3760/cma.j.cn121094-20200601-00309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Emergency rescue workers are the high risk group of traumatic stress disorder. A large number of intervention studies on traumatic stress disorder have been carried out at home and abroad, but there are few applied researches on the emergency rescue population. As an occupational hazard faced by the emergency rescue population, traumatic stress disorder has not attracted enough attention. In this paper, the psychological intervention, drug intervention, psychological training and social support were reviewed.
Collapse
Affiliation(s)
- Y D Huang
- Beijing Institute of Cabor protection science, Beijing 100054, China
| | - T Wang
- Beijing Institute of Cabor protection science, Beijing 100054, China
| | - Y Sun
- Beijing Institute of Cabor protection science, Beijing 100054, China
| |
Collapse
|
2
|
Yuan S, Chen T, Li DZ, Huang YD, Tang H, Ji P. [Assessment of the clinical effect regarding three-dimensional printing individualized titanium mesh for bone augmentation in the esthetic area]. Zhonghua Kou Qiang Yi Xue Za Zhi 2020; 55:878-884. [PMID: 33171562 DOI: 10.3760/cma.j.cn112144-20200702-00393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the clinical effect of three-dimensional (3D) printing individualized titanium mesh for ridge augmentation in the esthetic zone. Methods: Forty-three patients were treated with personalized titanium mesh bone augmentation from Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University from January, 2018 to June, 2020. According to the preoperative cone-beam CT (CBCT) data, the 43 patients [male: 21, female: 22, aged (30.1±5.8) years] were divided into three groups according to the Seibert classification as horizontal, vertical and horizontal-vertical classes (sample size: 14, 15, 14). Then, comprehensively the bone mass and esthetic requirements were taken into account to design and accordingly fabricate the 3D printing individualized titanium mesh. During the surgical process, autologous bone and xenogeneic bone substitutes were mixed at a 1∶1 ratio, combined with injectable platelet-rich fibrin (i-PRF) and individualized titanium mesh for ridge augmentation. All patients were recalled at 1, 3, and 6 months post-operation to observe the mesh exposure; the clinical effect of ridge augmentation was evaluated 6 months post-operation. After the implant placement and final restoration, the pink esthetic score (PES)/white esthetic score (WES) were evaluated. Results: Only one patient experienced early mesh exposure, and no obvious infection was observed. The bone gain regarding three types of bone defects was significantly higher immediately post-operation compared to pre-operation (horizontal, vertical and horizontal-vertical bone defect measured as (3.27±0.13), (17.41±0.46), (3.76±0.24), (14.37±0.89) mm pre-operation, respectively; and (5.25±0.15), (26.10±0.55), (6.35±0.29), (22.52±0.90) mm immediately post-operation, P<0.01). There was no obvious bone resorption 6 months post-operation [outcomes for horizontal, vertical and horizontal-vertical bone defect measured as (5.14±0.14), (25.67±0.52), (6.13±0.26), (22.35±0.89) mm, P>0.05]. The PES/WES scores of all patients were interpreted as "excellent". Conclusions: The 3D printing individualized titanium mesh is effective in repairing bone defects in the esthetic zone, and produces credible esthetic outcomes after implantation and final restoration.
Collapse
Affiliation(s)
- S Yuan
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
| | - T Chen
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
| | - D Z Li
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
| | - Y D Huang
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
| | - H Tang
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
| | - P Ji
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
| |
Collapse
|
3
|
Hsueh CM, Lin HM, Tseng TY, Huang YD, Lee HS, Dong CY. Dynamic observation and quantification of type I/II collagen in chondrogenesis of mesenchymal stem cells by second-order susceptibility microscopy. J Biophotonics 2019; 12:e201800097. [PMID: 29920965 DOI: 10.1002/jbio.201800097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 06/14/2018] [Indexed: 06/08/2023]
Abstract
Second-order susceptibility (SOS) microscopy is used to image and characterize chondrogenesis in cultured human mesenchymal stem cells. SOS analysis shows that the SOS tensor ratios can be used to characterize type I and II collagens in living tissues and that both collagen types are produced at the onset of chondrogenesis. Time-lapse analysis shows a modulation of extracellular matrix results in a higher rate in increase of type II collagen, as compared to type I collagen. With time, type II collagen content stabilizes at the composition of 70% of total collagen content. SOS microscopy can be used to continuously and noninvasively monitor the production of collagens I and II. With additional development, this technique can be developed into an effective quality control tool for monitoring extracellular matrix production in engineered tissues.
Collapse
Affiliation(s)
- Chiu-Mei Hsueh
- Department of Physics, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Hung-Ming Lin
- Department of Physics, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Te-Yu Tseng
- Department of Physics, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Yao-De Huang
- Department of Physics, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Hsuan-Shu Lee
- Institute of Biotechnology, College of Bio-Resources and Agriculture, National Taiwan University, Taipei, Taiwan, Republic of China
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan, Republic of China
| | - Chen-Yuan Dong
- Department of Physics, National Taiwan University, Taipei, Taiwan, Republic of China
- Center for Optoelectronic Biomedicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Center of Quantum Science and Engineering, National Taiwan University, Taipei, Taiwan, Republic of China
| |
Collapse
|
4
|
Lin CJ, Lee SL, Wang WH, Hovhannisyan VA, Huang YD, Lee HS, Dong CY. Multiphoton dynamic imaging of the effect of chronic hepatic diseases on hepatobiliary metabolism in vivo. J Biophotonics 2018; 11:e201700338. [PMID: 29388745 DOI: 10.1002/jbio.201700338] [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] [Received: 11/14/2017] [Accepted: 01/29/2018] [Indexed: 05/18/2023]
Abstract
In this study, intravital multiphoton microscopy was used to quantitatively investigate hepatobiliary metabolism in chronic pathologies of the liver. Specifically, through the use of the probe molecule 6-carboxyfluorescein diacetate, the effects of liver fibrosis, fatty liver, and hepatocellular carcinoma on the metabolic capabilities of mouse liver were investigated. After the acquisition of time-lapse images, a first order kinetic model was used to calculate rate constant resolved images of various pathologies. It was found that the ability of the liver to metabolically process the probe molecules varies among different pathologies, with liver fibrosis and fatty liver disease negatively impacted the uptake, processing, and excretion of molecules. The approach demonstrated in this work allows the study of the response of hepatic functions to different pathologies in real time and is useful for studying processes such as pharmacokinetics through direct optical imaging.
Collapse
Affiliation(s)
- Chih-Ju Lin
- Department of Physics, National Taiwan University, Taipei, Taiwan
| | - Sheng-Lin Lee
- Department of Physics, National Taiwan University, Taipei, Taiwan
| | - Wei-Hsiang Wang
- Department of Physics, National Taiwan University, Taipei, Taiwan
| | | | - Yao-De Huang
- Department of Physics, National Taiwan University, Taipei, Taiwan
| | - Hsuan-Shu Lee
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chen-Yuan Dong
- Department of Physics, National Taiwan University, Taipei, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei, Taiwan
| |
Collapse
|
5
|
Huang YD, Tan JJ, Han XY, Zeng FF, Li YF, Wang L, Li XP. [Study on the correlation between adenoid hypertrophy and laryngopharyngeal reflux in children]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:899-904. [PMID: 29921070 DOI: 10.13201/j.issn.1001-1781.2018.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Indexed: 11/12/2022]
Abstract
Objective:To discuss the correlation between adenoid hypertrophy and laryngopharyngeal reflux in children, and to determine the accuracy of reflux symptom index(RSI) and reflux finding score(RFS) in predicting adenoid hypertrophy and laryngopharyngeal reflux(LPR). Method:Assessment of RSI and RFS was performed in 71 children with adenoid hypertrophy who underwent surgery.The adenoid biopsy specimens were examined by pepsin immunohistochemical staining. According to the positive results of pepsin staining to evaluate the sensitivity and specificity of RSI and RFS to predict LPR. Result:Among the 71 children with adenoid hypertrophy, RSI was greater than 13 points in 4 cases (5.63%), RFS was greater than 7 points in 26 cases (36.62%), and 1(1.41%) was positive in both scores. Pepsin expression was detected in 52 cases of adenoid hypertrophy tissues, with a total positive rate of 73.24% (52/71),most were strong positive(15/71,21.13%)and positive(23/71,32.39%). The higher the adenoid hypertrophy grade, the higher the expression level of pepsin (r=0.476, P<0.01).Define the positive rate of pepsin as the gold standard for the diagnosis of LPR, the sensitivity and specificity of RSI and RFS were 5.77%,34.62% and 94.74%,57.89% respectively. Pepsin staining intensity was positively correlated with troublesome or annoying cough(r=0.356, P=0.002)and was negatively correlated with ventricular obliteration(r=-0.212,P=0.038). Conclusion:There is a correlation between adenoid hypertrophy and LPR in children,LPR plays an important role in the development of adenoid and the role and mechanism of pepsin in adenoid hypertrophy needs further studyAs the low sensitivity of RSI and RFS, it is not suitable for the screening of adenoid hypertrophy in children with LPR. Children with adenoid hypertrophy cough for a long time and the laryngoscopy shows the ventricular obliteration, the presence of LPR should be warned.
Collapse
Affiliation(s)
- Y D Huang
- Department of Otorhinolaryngology,Nanfang Hospital,Southern Medical University,Guangzhou, 510515,China
| | - J J Tan
- Department of Otorhinolaryngology,Nanfang Hospital,Southern Medical University,Guangzhou, 510515,China
| | - X Y Han
- Department of Otorhinolaryngology,Nanfang Hospital,Southern Medical University,Guangzhou, 510515,China
| | - F F Zeng
- Department of Otorhinolaryngology,Nanfang Hospital,Southern Medical University,Guangzhou, 510515,China
| | - Y F Li
- Department of Otorhinolaryngology,Nanfang Hospital,Southern Medical University,Guangzhou, 510515,China
| | - L Wang
- Department of Otorhinolaryngology,Nanfang Hospital,Southern Medical University,Guangzhou, 510515,China
| | - X P Li
- Department of Otorhinolaryngology,Nanfang Hospital,Southern Medical University,Guangzhou, 510515,China
| |
Collapse
|
6
|
Huang YD, Tong X, Chen Q, Xia SW, Zhuo Y, Kang ZH, Xue XY. Mechanism of pingyangmycin-induced apoptosis of cultured human umbilical vein endothelial cells. Genet Mol Res 2017; 16:gmr-16-02-gmr.16029298. [PMID: 28510249 DOI: 10.4238/gmr16029298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In this study, we investigated the effects of pingyangmycin (PYM) on the growth inhibition and apoptosis of human umbilical vein endothelial cells (HUVEC). In this study, we aimed to explore the optimal concentration of PYM to induce the apoptosis of HUVEC and to determine its mechanism of action. After treatment of HUVEC with different concentrations of PYM for 24 h, cell counting kit-8 (CCK-8) was used to detect growth inhibiting effects. Annexin V-FITC/propidium iodide stain was used to detect apoptosis, and western blot was used to detect the expression of glucose-related protein 78 (GPR78) and C/EBP homologous protein (CHOP) endoplasmic reticulum stress proteins. With increasing PYM concentration, the growth inhibition of HUVEC increased (P < 0.05), the apoptotic numbers of HUVEC increased (P < 0.05), with higher PYM concentrations inducing necrosis, and the protein expression of GRP78 and CHOP increased (P < 0.05). PYM could obviously inhibit the proliferation and promote the apoptosis of HUVEC. Necrotic cells were more prevalent than apoptotic cells at high PYM concentrations. This study helped to determine the proper concentration of PYM to induce more apoptosis than necrosis, which is critical to minimize inflammation, enhance the healing of the skin, and maintain safety for the patient. PYM might induce HUVEC apoptosis through the endoplasmic reticulum stress pathway.
Collapse
Affiliation(s)
- Y D Huang
- Department of Otorhinolaryngology Head & Neck Surgery of the First Clinical College of Wenzhou Medical university, ,, China .,
| | - X Tong
- Department of Otorhinolaryngology Head and Neck Surgery, , , China
| | - Q Chen
- Department of Otorhinolaryngology Head & Neck Surgery of the First Clinical College of Wenzhou Medical university, ,, China
| | - S W Xia
- Department of Otorhinolaryngology Head & Neck Surgery of the First Clinical College of Wenzhou Medical university, ,, China
| | - Y Zhuo
- Department of Otorhinolaryngology Head & Neck Surgery of the First Clinical College of Wenzhou Medical university, ,, China
| | - Z H Kang
- Department of Otorhinolaryngology Head & Neck Surgery of the First Clinical College of Wenzhou Medical university, ,, China
| | - X Y Xue
- Department of Microbiology and Immunology of Wenzhou Medical College, , , China
| |
Collapse
|
7
|
Chen YJ, Lin YF, Huang JH, Gong XH, Luo ZD, Huang YD. Efficient diode-pumped acousto-optic Q-switched Er:Yb:GdAl(3)(BO(3))(4) pulse laser at 1522 nm. Opt Lett 2015; 40:4927-4930. [PMID: 26512485 DOI: 10.1364/ol.40.004927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
End-pumped by a continuous-wave 976 nm diode laser, efficient 1522 nm laser operation was demonstrated in an Er:Yb:GdAl(3)(BO(3))(4) crystal when a sapphire crystal was used as a heat diffuser. A continuous-wave 1522 nm laser with a maximum output power of 750 mW and slope efficiency of 36% was realized at an absorbed pump power of 4.1 W. The pulse performances of an acousto-optic Q-switched laser with various repetition frequencies were investigated in detail. In a repetition frequency range of 1-10 kHz, 1522 nm pulse lasers with a slope efficiency of about 10%, peak output power at the kilowatt level, and width of about 50 ns were first obtained in an Er:Yb:GdAl(3)(BO(3))(4) crystal pumped by a continuous-wave diode laser. The results indicate that the crystal is a promising gain medium for an actively Q-switched 1.5 μm laser.
Collapse
|
8
|
Jiang B, Zhu CC, Huang YD. Research of the Dispersity of the Functional Sericite/Methylphenyl- Silicone Resin. PLoS One 2015; 10:e0127735. [PMID: 26061002 PMCID: PMC4465346 DOI: 10.1371/journal.pone.0127735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 04/17/2015] [Indexed: 11/18/2022] Open
Abstract
In order to improve the homogeneity and dispersity of the sericite in methylphenyl-silicone resin, the agglomerate state of the sericites was controlled effectively. The dispersive model of the sericite in methylphenyl-silicone resin was designed also. First, the modified sericite was prepared using hexadecyl trimethyl ammonium bromide as the intercalating agent. Then, functional sericite was incorporated into methylphenyl-silicone by terminal hydroxyl. The structure and dispersive performance of the hybrid polymers was charactered by analytical instruments. Scanning electron microscopy and Transmission electron microscope, Laser scanning confocal microscope and X-ray diffraction analysis showed that functional sericite was dispersed homogeneously in methylphenyl-silicone resin matrix. X-ray photoelectron spectroscopy analysis showed that the absorption peaks of the Si-OH band of methylphenyl-silicone resin were decreased and the Si-O-Si band was increased. This change evidently showed a significant role to enhance the reaction degree of the functional sericite in methylphenyl-silicone resin.
Collapse
Affiliation(s)
- B Jiang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090; Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China
| | - C C Zhu
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China
| | - Y D Huang
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China
| |
Collapse
|
9
|
Wu WL, Huang YD, Hsu KE, Wang YH, Huang HH, Hsiung WC, Chen SM, Chang HS, Chu CP, Chung YJ, Huang YT. A health risk assessment of reclaimed municipal wastewater for industrial and miscellaneous use. Water Sci Technol 2014; 70:750-756. [PMID: 25116508 DOI: 10.2166/wst.2014.291] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The study evaluated the safety of reclaimed water using health risk assessment and biotoxicity tests. The reclaimed water was produced from reverse osmosis and used in industrial and miscellaneous purposes. The health risk assessment was conducted based on the concentrations of detectable pollutants in reclaimed water in a hypothetical scenario. The estimated carcinogenic and non-carcinogenic risks are lower than the generally accepted level. Biotoxicity evaluation included three genotoxicity tests, a chronic toxicity test using medaka fishes, and a subchronic toxicity test using mice. The reclaimed water is not genetically toxic, and does not cause significant chronic effects on these model organisms. These results confirm the safety of using reclaimed water from municipal wastewater treatment plants.
Collapse
Affiliation(s)
- W L Wu
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - Y D Huang
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - K E Hsu
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - Y H Wang
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - H H Huang
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - W C Hsiung
- Department of Aquatic Sciences, National Chiayi University, 300, Syuefu Rd., Chiayi, 600, Taiwan (R.O.C.)
| | - S M Chen
- Department of Aquatic Sciences, National Chiayi University, 300, Syuefu Rd., Chiayi, 600, Taiwan (R.O.C.)
| | - H S Chang
- Program for Translation Medicine, College of Medical Science and Technology, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 110, Taiwan (R.O.C.)
| | - C P Chu
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - Y J Chung
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - Y T Huang
- Water Resource Planning Institute, Water Resource Agency, 1340, Jhong-Jheng Rd., Wu-Fong, Taichung, 413, Taiwan (R.O.C.)
| |
Collapse
|
10
|
Wang KY, Peng CZ, Huang JL, Huang YD, Jin MC, Geng Y. The pathology of selenium deficiency in Cyprinus carpio L. J Fish Dis 2013; 36:609-615. [PMID: 23320605 DOI: 10.1111/jfd.12030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2009] [Revised: 11/06/2009] [Accepted: 11/19/2009] [Indexed: 06/01/2023]
Abstract
Selenium is essential for the normal life processes, and all animals, including fish, need this inorganic element. In order to research the pathology of selenium deficiency in common carp, Cyprinus carpio L., 360 juvenile carp were allocated to three treatments. Each treatment containing 120 fish was randomly divided into four groups, fed with purified diets containing selenium at 0, 0.15, 0.30 and 0.45 mg kg(-1). The results indicated that the morbidity and mortality rates of the test groups were negatively correlated with the level of selenium in the diets. The morbidity and mortality rates were, respectively, 46.7%, 33.3%, 13.3%, 0 and 26.7% 16.7%, 6.7%, 0. The affected fish exhibited pathological changes, such as 'thin back disease' and lordosis. Histologically, there was no abnormality observed in muscles, liver and pancreas. Ultrastructurally, there was swelling of the mitochondria of the cardiac muscle cells, the liver cells and renal tubular epithelial cells, with disintegration and lysis of the cristae of the mitochondria which vesiculated. Serum glutamic oxaloacetic transaminase and glutamic pyruvic transaminase levels were increased and the activity of the serum glutathione peroxidase and the serum superoxide dismutase was decreased; in contrast, the serum malonaldehyde concentration was increased.
Collapse
Affiliation(s)
- K Y Wang
- Research Center of Fish Disease, College of Animal Science and Veterinary Medicine of Sichuan Agricultural University, Yaan, Sichuan, China.
| | | | | | | | | | | |
Collapse
|
11
|
Jiang B, Mostofizadeh A, Bai YP, Huang YD. Rapid analysis of the quality of the recording coating on ink jet printing in preparation. J Phys Chem B 2011; 115:14526-30. [PMID: 22017621 DOI: 10.1021/jp2086686] [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] [Indexed: 11/29/2022]
Abstract
Preparation of the recording coating on the ink jet printing (RC-IJP) is proposed. The microstructure of RC-IJP was analyzed by scanning electron microscopy and atomic force microscope. The surface infiltration process of RC-IJP was studied. Fourier transform near-infrared (FT-NIR) spectra showed the combination and overtone vibrations information of the hydrogen-containing groups in RC-IJP structure. NIR spectra combined with partial least-squares methods were proposed for the noncontact analysis of the surface infiltration time and weight per unit area in RC-IJP. Forty-five samples were selected for the calibration sets of the surface infiltration time and weight per unit area, respectively. Spectral pretreatment method was used to develop robust calibration models. After the spectral pretreatment was optimized, the determination coefficient (R(2)) of the surface infiltration time and weight per unit area were 0.90 and 0.97, respectively. The analytical results showed that NIR spectra had significant potential for the analysis of the surface infiltration time and weight per unit area of RC-IJP.
Collapse
Affiliation(s)
- B Jiang
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, People's Republic of China
| | | | | | | |
Collapse
|
12
|
Dang XL, Wang YS, Huang YD, Yu XQ, Zhang WQ. Purification and characterization of an antimicrobial peptide, insect defensin, from immunized house fly (Diptera: Muscidae). J Med Entomol 2010; 47:1141-1145. [PMID: 21175065 DOI: 10.1603/me10016] [Citation(s) in RCA: 17] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The house fly, Musca domestica L. (Diptera: Muscidae), is involved in phoretic movement of pathogenic agents, but it has a very efficient defense mechanism against infection. It is believed that antimicrobial peptides play a significant role in the defense system of the house fly. Here, we isolated a peptide from the immunized house fly pupae, measured its molecular mass (3987.6 Da) by matrix-assisted laser desorption ionization/time of flight-mass spectrometry, and determined its amino acid sequence by using the Procise Protein Sequencing System (Applied Biosystems, Foster City, CA). The peptide was confirmed as a member of the insect defensin family. It displayed high activity against gram-positive bacteria but lower activity against gram-negative bacteria and fungi. Reverse transcription-polymerase chain reaction showed that the house fly defensin gene was constitutively expressed in naive pupae and strongly up-regulated after immunization. House fly defensin is an amphiphilic peptide with a structure similar to that of the CSalphabeta scaffold of insect defensin A from the flesh fly, Phormia terraenovae Robineau-Desvoidy. To our knowledge, this is the first isolated and characterized house fly antimicrobial peptide, and our work may provide useful information for developing pharmacologically active antimicrobial agents.
Collapse
Affiliation(s)
- X L Dang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | | | | | | | | |
Collapse
|
13
|
Shuai JW, Huang YD, Rüdiger S. Puff-wave transition in an inhomogeneous model for calcium signals. Phys Rev E Stat Nonlin Soft Matter Phys 2010; 81:041904. [PMID: 20481750 DOI: 10.1103/physreve.81.041904] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Received: 09/21/2009] [Revised: 02/17/2010] [Indexed: 05/29/2023]
Abstract
In many cell types, calcium ion channels on the endoplasmic reticulum membrane occur in a clustered distribution. The channels generate either localized puffs, each comprising channels of only one cluster, or global calcium waves. In this work we model the calcium system as a two-dimensional lattice of active elements distributed regularly in an otherwise passive space. We address an important feature of the puff-wave transition, which is the difference in lifetime of puffs at a few hundred milliseconds and long-lived global waves with periods of several seconds. We show that such a lifetime difference between puffs and waves can be understood with strongly reduced ordinary differential equations modified by a time-scale factor that takes into account the coupling strength of active and passive regions determined by the Ca2+ diffusion coefficient. Furthermore, we show that the point model can also describe very well the dependence of Ca2+ oscillation characteristics on the cluster-cluster distance in the case of large diffusivity.
Collapse
Affiliation(s)
- J W Shuai
- Department of Physics and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen, Fujian 361005, China.
| | | | | |
Collapse
|
14
|
Song C, Huang YD, Wei Z, Hou Y, Xie WJ, Huang RP, Song YM, Lv HG, Song CF. Polyglycolic Acid-islet grafts improve blood glucose and insulin concentrations in rats with induced diabetes. Transplant Proc 2009; 41:1789-93. [PMID: 19545729 DOI: 10.1016/j.transproceed.2009.01.079] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2008] [Revised: 10/25/2008] [Accepted: 01/08/2009] [Indexed: 12/01/2022]
Abstract
Pancreatic islet transplantation is a promising therapeutic treatment for type 1 diabetes mellitus. In the present study, we cocultured islets with or without a polyglycolic acid (PGA) fibrous scaffold for 5 days and transplanted the PGA-islet grafts into the leg muscles of Wistar rats with streptozotocin-induced diabetes; controls were injected with saline. The results showed that the blood glucose concentrations of the group given islets embedded with the PGA scaffold were lower than those without the scaffold or controls. On the other hand, the insulin content of the PGA-islet group was higher at all 5 time points compared with the insulin contents of the other 2 groups. After transplantation, many islets in the PGA-islet grafts showed normal morphology (as seen under the scanning electron microscope) and were surrounded by red blood cells. A fibrous extracellular matrix was visible around the PGA-islet grafts. These results demonstrated that PGA-islet grafts improved blood glucose and insulin concentrations in rats with induced diabetes.
Collapse
Affiliation(s)
- C Song
- Department of Applied Chemistry, Harbin Institute of Technology, Harbin, China
| | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Jiang B, Huang YD. Noncontact analysis of the fiber weight per unit area in prepreg by near-infrared spectroscopy. Anal Chim Acta 2008; 616:103-8. [PMID: 18471490 DOI: 10.1016/j.aca.2008.04.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2008] [Revised: 04/03/2008] [Accepted: 04/04/2008] [Indexed: 10/22/2022]
Abstract
The fiber weight per unit area in prepreg is an important factor to ensure the quality of the composite products. Near-infrared spectroscopy (NIRS) technology together with a noncontact reflectance sources has been applied for quality analysis of the fiber weight per unit area. The range of the unit area fiber weight was 13.39-14.14mgcm(-2). The regression method was employed by partial least squares (PLS) and principal components regression (PCR). The calibration model was developed by 55 samples to determine the fiber weight per unit area in prepreg. The determination coefficient (R(2)), root mean square error of calibration (RMSEC) and root mean square error of prediction (RMSEP) were 0.82, 0.092, 0.099, respectively. The predicted values of the fiber weight per unit area in prepreg measured by NIRS technology were comparable to the values obtained by the reference method. For this technology, the noncontact reflectance sources focused directly on the sample with neither previous treatment nor manipulation. The results of the paired t-test revealed that there was no significant difference between the NIR method and the reference method. Besides, the prepreg could be analyzed one time within 20s without sample destruction.
Collapse
Affiliation(s)
- B Jiang
- Polymer Materials and Engineering Division, Department of Applied Chemistry, Harbin Institute of Technology, P.O. Box: 410, Harbin 150001, People's Republic of China.
| | | |
Collapse
|
16
|
Li GD, Wo Y, Zhong MF, Zhang FX, Bao L, Lu YJ, Huang YD, Xiao HS, Zhang X. Expression of fibroblast growth factors in rat dorsal root ganglion neurons and regulation after peripheral nerve injury. Neuroreport 2002; 13:1903-7. [PMID: 12395088 DOI: 10.1097/00001756-200210280-00014] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [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: 10/26/2022]
Abstract
Using cDNA array, we observed the expression of eight members of the fibroblast growth factor (FGF) family, FGF 2, 5, 7, 9, 10, 13 and 14, in rat lumbar 4 and 5 dorsal root ganglia (DRGs). Over a period of 28 days after sciatic nerve transection, the array signals for FGF 2 and 7 were significantly increased in the DRGs, while FGF 13 decreased. Using the reverse transcription polymerase chain reaction (RT-PCR), we confirmed the axotomy-induced changes in the expression of FGF 7 and 13. hybridization showed that FGF 13 was expressed in 60% of DRG neurons under normal circumstance. Seven days after axotomy the number of FGF 13-positive neurons was decreased to 18%, but partially recovered to 40% after 28 days. FGF 13 immunoreactivity was also decreased. These data indicate that FGFs are important for DRG neurons under normal circumstance and after nerve injury.
Collapse
Affiliation(s)
- Guo-Dong Li
- Laboratory of Sensory System, Institute of Neuroscience, Shanghai Institute of Biological Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai, 200031, China
| | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Cao Y, Xiao QX, Huang YD, Ge CB, Huang ZR, Liu LS. [Mutagenic analysis on the polyhedrin gene (polh) of Bombyx mori nuclear polyhedrosis virus (BmNPV)]. Yi Chuan Xue Bao 2001; 27:972-81. [PMID: 11209691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
In our early studies, the abnormal shape of the polyhedra of Bombyx mori nuclear polyhedrosis virus (BmNPV) induced by chemical mutagens of MMC. 9-AA and EMS occurred, and the genome of the mutated BmNPV obtained from the successive test had some change in the restriction endonuclease partners of EcoRI, BglII and BamHI. The present studies showed that the arrangement of the crystal lattice of the polyhedrin was disorderly, and the SDS-PAGE electropherogram of the polyhedrin depicted distinct change in comparison with control group. The results of sequencing analysis showed that many point mutations with characteristics of the base substitution had occurred at some sites of the BmNPV polh gene in three mutated groups, and these results funther revealed molecular mutagenesis of the mutagens effective to BmNPV. It was not confirmable that the point mutations of polh gene in the mutated BmNPV have relationship to abnormal shape of the polyhedra.
Collapse
Affiliation(s)
- Y Cao
- Department of Sericulture and Fashion Design, South China Agricultural University, Guanzhou 510642, China
| | | | | | | | | | | |
Collapse
|
18
|
Yi B, Luo JQ, Tang Y, Huang YD. [Discriminant function based on serum analyte for diagnosis of primary hepatic cancer]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:373-5. [PMID: 12206007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
OBJECTIVE The aim of this study was to diagnose primary hepatic cancer(PHC). METHODS Seven serum indexes of 92 serum samples consisting of 48 controls and 44 PHC were detected. Four discriminant functions based on seven serum indexes were obtained with computer SPSS statistic package. RESULTS The rate of coincidence, sensitivity, and specificity of the general discriminant functions were 86.96%, 77.27%, and 95.83% respectively; and that of the stepwise discriminant functions were 84.78%, 79.55%, and 89.59% respectively. CONCLUSION Usually PHC can be diagnosed by analyzing patients serum indexes with the discriminant functions.
Collapse
Affiliation(s)
- B Yi
- Clinical Laboratory, Xiangya Hospital, Hunan Medical University, Changsha 410008
| | | | | | | |
Collapse
|
19
|
Abstract
An insulin A chain analogue, [A13-14 GABA, A21 Ala]A chain, for which the dipeptide Leu-Try at A13-A14 was substituted by a non-coded amino acid, gamma-amino butyric acid (GABA) and A21 Asn by Ala, was prepared by stepwise Fmoc solid-phase manual synthesis and then combined with the natural B chain of porcine insulin to yield an insulin analogue, [A13-14 GABA, A21Ala] porcine insulin (GABA substituted insulin). This insulin analogue still retains 50% in vivo biological activity and 59% in receptor binding capacity. It can also be crystallized. These results indicate that its overall conformation is similar to the native form and that the side chains of A13Leu and A14Tyr are not essential for insulin activity. In addition, the replacement of a normal C-N peptide bond by an unnatural C-C bond may have general meaning in structure and function studies of other proteins.
Collapse
Affiliation(s)
- Y D Huang
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry, Chinese Academy of Sciences.
| | | | | | | |
Collapse
|
20
|
She MP, Liang P, Huang YD, Cai CB, Ran BF, Wang ZL, Xia RY. HDL and apolipoprotein A1 (apo A1). Their effects on retardation of lipid deposition in aortic intima. Chin Med J (Engl) 1992; 105:369-73. [PMID: 1499365] [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: 12/27/2022] Open
Abstract
The aim of this study is to clarify whether apo A1 displays a similar role as that of HDL in preventing the development of experimental atherosclerosis. Results were obtained from 4 groups of experiments. (1) Result from 4 successive experiments of tree shrews indicated that high serum HDL level is the main factor in preventing the development of experimental atherosclerosis; (2) Results from 4 successive experiments in rabbits showed that both HDL and apo A1 were able to decrease the extent of lipid deposition and atheromatous lesion developed in the aortic intima; (3) Apo A1 also inhibited the number of monocytes/macrophages infiltrated in aortic intima at the initial stage of fatty streak formation; (4) Similar as HDL, apo A1 phospholipid liposomes promoted markedly the clearance ability of smooth muscle cells on intracellular cholesterol. Conclusively, apo A1 is effective in preventing the development of experimental atherosclerosis. Further study, however, is required to detect an ideal combination of apo A1 with other component, e.g., phospholipid.
Collapse
Affiliation(s)
- M P She
- Department of Pathology, Chinese Academy of Medical Sciences, Beijing
| | | | | | | | | | | | | |
Collapse
|
21
|
Yang ZL, Wang YZ, Wu CL, Huang YD, Wang QC, Cheng XF, Chen HT. [Toxicity experiment on Sargassum, radix Knoxiae, radix Ransul and flos Genkwa against radix Glycyrrhizae in the antagonism of 18 Chinese drugs]. Zhongguo Zhong Yao Za Zhi 1989; 14:48-50, 64. [PMID: 2506898] [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
In order to further look into the cause of the antagonisms in the 18 Chinese medicinal herbs, stimulation and toxicity experiments, with five Chinese medicinal herbs (Sargassum Radix Knoxiae, Radix Kansul and Flos Genkwa against Radix Glycyrrhiza) as a group, were done in healthy rats and rabbits.
Collapse
|
22
|
Ng FM, Zhu SQ, Cui DF, Fan L, Huang YD, Zhang YS. Structure and activity of the B-chain of insulin. Biochem Int 1989; 18:373-81. [PMID: 2669756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Despentapeptide (B26-30)-insulinamide (B25) prepared by a semisynthetic procedure was found to have about 65% of the hypoglycaemic activity of natural insulin. In contrast, the binding of the modified insulin analogue to insulin specific receptors was markedly increased. The discrepancy between the loss of biological potency and the apparent increase in binding affinity for membrane receptors reveals that not all of the biological activity of insulin is regulated by the receptor-binding system. The tetrapeptidamide of the B-chain of insulin (Arg-Gly-Phe-Phe-NH2) was clearly shown to have both insulin-like and insulin-potentiating actions in vivo although it had no effect on insulin receptor function in vitro. Evidence suggests that the small peptide fragment of insulin may be internalized and acts at the post-binding site(s) of the glucose metabolic pathway in target tissues. The present data support the general concept that insulin may exert its complex molecular actions through internalized hormonal fragment as well as the transmembrane mediators generated from receptor binding.
Collapse
Affiliation(s)
- F M Ng
- Department of Biochemistry, Monash University, Melbourne, Australia
| | | | | | | | | | | |
Collapse
|