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Wang Y, Ma L, Tian W. [Determination of pericarpium papaveris(yingsuqiao) in bottom material of chafing dish by high performance liquid chromatography(HPLC)]. Se Pu 1999; 17:401-2. [PMID: 12552865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
Morphine, codeine and papaverine in bottom material of chafing dish were determined by HPLC. The conditions were as follows: C18 column, mobile phase V(CH3OH):V(25 mmol/L KH2PO4) = 90:10, the flow rate 1 mL/min and the wavelength 254 nm. These three compounds were entirely separated. The blank and positive comtrasts were being done simultaneously. The detection limit was 0.1 mg/L. The experiment showed that this method is sensiuve, accurate and reliable.
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Affiliation(s)
- Y Wang
- College of Forensic Medicine, Xi'an Medical University, Xi'an, 710061
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252
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Tian W, Li S, Pan J, Gao Z, Zheng X. [Surgical reduction and rigid internal fixation of midface fractures]. Hua Xi Kou Qiang Yi Xue Za Zhi 1999; 17:136-9. [PMID: 12539707] [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: 02/28/2023]
Abstract
OBJECTIVE To determine the cause, clinical characteristics and treatment of midface fractures. METHODS A retrospective review of 98 patient records was conducted. Data regarding age, cause of fracture, anatomic site, treatment modalities and clinical results were reviewed. RESULTS Of the 98 patients, 78.6% were male, with the peak incidence occurring in the age group from 21 to 40 years old. Of the fractures, 32.6% were due to traffic accidents, 24.5% to assaults, and 17.3% to accidental falls. Most patients (87.8%) were treated by open reduction surgery and rigid internal fixation. Only 12.2% of patients were treated by closed reduction fixation. Almost all of the patients regained normal face appearance and functional occlusion. CONCLUSION Surgical reduction and rigid internal fixation of midface fractures is a satisfactory method of treatment.
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Affiliation(s)
- W Tian
- College of Stomatology, West China University of Medical Sciences
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253
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Yu S, Tian W, Yun C, Cao B, Wang J, He Y, Fan Z, Zhang C, Yang X. [The effect of age on the regional blood flow of neck of femur in normal Chinese]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 1999; 16:67-70. [PMID: 12553280] [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: 02/28/2023]
Abstract
This study aimed to assess the effect of age on the regional blood flow of neck of femur in normal Chinese. 133Xe washout method was adopted. The result showed that the femur regional blood flow of normal Chinese decreased slowly with the increase of their age. The relation between age and femur blood flow might be expressed as F = -0.042Y + 9.01(F refers to blood flow, Y refers to age). The average femur regional blood flow of normal Chinese was 7.37 +/- 0.62 ml.(100 g.min)-1 for 21-40 years old. The authors suggest this result can be considered to stand for regional femur blood flow of young healthy adults.
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Affiliation(s)
- S Yu
- Navel Medical Research Institute, Shanghai 200433
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254
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Tian W, Wang D, Qiao J, Chen W. [Effects of two growth factors combination on the proliferation and differentiation of human osteoblast-like cells]. Hua Xi Kou Qiang Yi Xue Za Zhi 1999; 17:78-81. [PMID: 12539332] [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: 02/28/2023]
Abstract
OBJECTIVE To examine the effects of platelet-derived growth factor (PDGF), basic fibroblast growth factor (bFGF), insulin-like growth factor (IGF-II) and type beta transforming growth factor(TGF-beta) which were believed to have biological effects on bone cells on human osteoblast-like cells. METHODS 3H-TdR, 3H-Proline and alkaline phosphatase of the osteoblast-like cells were tested to study the combinating effects of different growth factors on the proliferation and differentiation of osteoblast-like cells. RESULTS The combination of different growth factors had promotive effect and synergic interact on proliferation and differentiation of osteoblast-like cells. CONCLUSION The phenomena indicate that the combination of two growth factors will enhance the biological effects of bone formation.
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Affiliation(s)
- W Tian
- College of Stomatology, West China University Medical Sciences
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255
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Ba X, Wang H, Tian W, Liu L, Li S. [Analysis of 413 cases of mandibular fractures]. Hua Xi Kou Qiang Yi Xue Za Zhi 1999; 17:46-8. [PMID: 12539321] [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: 02/28/2023]
Abstract
OBJECTIVE To investigate the characteristics of mandibular fracture. METHODS 413 patients with mandibular fracture were chosen from patients who received treatment at the department of oral and maxillofacial surgery, College of Stomatology, West China University of Medical Sciences from 1986 to 1995, and a retrospective study was carried out. Chi-square test, t-test and linear regression were used to analyzed age, sex, causes, anatomic site, complicated injury, and treatment of jaw fracture. RESULTS Fracture of Mandible occurred mainly in male, and during 20 to 29 years old. Mental fracture was common in mandibular fracture, and fracture of central craniofacial bone and craniocerebral injury were often complicated with jaw fracture. CONCLUSION Mandibular fractures are caused mainly by traffic ever since 1990, and rigid intrafixation is a satisfactory treatment which has been accepted by surgeons.
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Affiliation(s)
- X Ba
- Department of Oral and Maxillofacial Surgery, College of Stomatology, West China University of Medical Sciences
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256
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Lan Q, He X, Costa D, Tian W. [Glutathione S-transferase GSTM1 and GSTT1 genotypes and susceptibility to lung cancer]. Wei Sheng Yan Jiu 1999; 28:9-11. [PMID: 12712736] [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: 03/02/2023]
Abstract
A 1:1 matched population-based case-control study was conducted in Xuanwei City, Yunnan Province, where the lung cancer mortality is among China's highest. In this study there were 86 newly diagnosed lung cancer cases and 86 matched control subjects with the same sex, fuel type used, and age(+/- 2 years). Buccal cells were collected from each subject to determine the genotypes of GSTM1 and GSTT1. It was found that the rate of GSTM1 null genotype was higher in the case group than in the control group, and its odds ratio was 2.39(95% CI: 1.25-4.56). The odds ratio became 2.62(95% CI: 1.33-5.15) when other possible confounding factors such as smoking, COPD, and the lifetime exposure to unvented fuel combustion (tons) were adjusted. No association was found between GSTT1 null genotype and lung cancer. The rate of GSTM1 null genotype in Xuanwei City was found to be similar to those of other Chinese populations.
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Affiliation(s)
- Q Lan
- Institute of Environmental Health and Engineering, Chinese Academy of Preventive Medicine, Beijing 100050, China
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257
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Ni B, Tian W, Nie H, Wang P, He G. Study on air pollution in Beijing's major industrial areas using multielements in biomonitors and NAA techniques. Biol Trace Elem Res 1999; 71-72:267-72. [PMID: 10676500 DOI: 10.1007/bf02784212] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 10/22/2022]
Abstract
Three kinds of plant leaves, Chinese white aspen, arborvitae, and pine needles, have been sampled from the Yanshan Oil refinery complex, the Capital Iron and Steel Factory, and Badachu, a control area in Beijing, as biomonitors for air-pollution studies. Each sample was divided into two parts, washed, and unwashed. Thirty-one trace elements (As, Au, Br, Ca, Cd, K, La, Lu, Mo, Na, Sb, Sm, U, W, Yb, Ba, Ce, Co, Cr, Cs, Eu, Fe, Hf, Hg, Rb, Sc, Se, Sr, Ta, Tb, Th, and Zn) have been determined by using the relative and the K0 methods of instrumental neutron activation analysis (NAA) techniques. The results indicated the following: (1) The concentration of trace elements in unwashed samples are much higher than these in washed samples; (2) the area around Capital Iron and Steel Factory is heavily polluted, and the Yanshan Oil refinery complex area is moderately polluted; (3) Chinese white aspen is a good biomonitor in particular seasons and pine needles are better than arborvitae for yearly monitoring; (4) elements As, Cd, Hg, Co, Rb, Sb, W, and Zn are highly absorbed by Chinese white aspen. Pine needles are sensitive for the absorption the elements Br, Cr, Cd, Fe, Sc, Cs and rare earth elements, but arborvitae is very sensitive for the absorption of Sr.
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Affiliation(s)
- B Ni
- China Institute of Atomic Energy, Beijing, China
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258
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Seradge H, Tian W, Roberts C. Clinical significance of an extensor tendon anomaly to the little finger--a new finding. J Okla State Med Assoc 1999; 92:7-9. [PMID: 9926666] [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: 02/10/2023]
Abstract
A new anatomical variation of extensor digiti minimi (EDM) was discovered during our anatomical studies. The EDM usually gives one tendon to the little finger to extend the metacarpophalangeal joint (MPJ) independently from the other fingers. The EDM in our cadaver had three tendon slips. It supplied the MPJ of the little finger with two tendon slips. Along with the extensor digitorum communis (EDC), the EDM also had an additional slip to the ring finger MPJ extensor hood apparatus. The little finger also received a separate tendon from EDC.
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Affiliation(s)
- H Seradge
- Hand Institute of Oklahoma, Oklahoma City 73109, USA
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259
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Abstract
There is a notable discrepancy between the FAS (fatty acid synthase) activity of four types of fowl (egg chicken, meat chicken, egg duck, and meat duck) with distinctively different body fat levels. There is a 14.8 fold difference per unit body weight between the maximum and minimum FAS activities. The three major factors affecting this discrepancy are liver weight per unit body weight, which is 2.3 times greater in meat ducks than in egg chickens, the amount of FAS protein per gram of liver, which is 1.85 times greater in meat ducks than in egg chickens, and the FAS specific activity in meat ducks, which is 3.5 times greater in meat ducks than in egg chickens. Within the same species of egg chickens, the abdomen fat per kg of body weight at 470 days after egg production is 66 times greater than 90 days before egg production and the liver FAS activity is increased 9.6 fold. The 9.6 fold FAS activity increase resulted from an increase in the specific activity, since the liver weight per kilogram of body weight remained constant at approx. 20 grams and the FAS weight per gram of liver also remained constant at approx. 4.5 mg. This shows that the control of the basic FAS activity level which is closely related to the level of body fat does not mainly arise from genetic control. For the same kind of fowl, the control of the basic FAS activity level occurs after gene expression. It is suggested that control may be imposed in the folding phase when new peptides give rise to functional proteins.
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Affiliation(s)
- M Li
- Institute of Biophysics, Academia Sinica, Beijing, P.R., China
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260
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Abstract
Thirty rats were divided randomly into five groups and fed with different feeds. They were killed after 2 mo. Right thighs of these rats were taken as samples. Bone mineral densities of these samples were measured by the double-energy x-ray bone mineral densitometer, and trace elements contents of the samples were analyzed by neutron activation analysis. Results of the experiments showed that some elements were well correlated with others, and there were obvious variances between some elements of the normal group and those of other four groups.
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Affiliation(s)
- H Nie
- China Institute of Atomic Energy, Beijing, China
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261
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Abstract
The metabolism of Krebs cycle intermediates is of fundamental importance for eukaryotic cells. In the kidney, these intermediates are transported actively into epithelial cells. Because citrate is a potent inhibitor for calcium stone formation, excessive uptake results in nephrolithiasis due to hypocitraturia. We report the cloning and characterization of a rat kidney dicarboxylate transporter (SDCT1). In situ hybridization revealed that SDCT1 mRNA is localized in S3 segments of kidney proximal tubules and in enterocytes lining the intestinal villi. Signals were also detected in lung bronchioli, the epididymis, and liver. When expressed in Xenopus oocytes, SDCT1 mediated electrogenic, sodium-dependent transport of most Krebs cycle intermediates (Km = 20-60 microM), including citrate, succinate, alpha-ketoglutarate, and oxaloacetate. Of note, the acidic amino acids L- and D-glutamate and aspartate were also transported, although with lower affinity (Km = 2-18 mM). Transport of citrate was pH-sensitive. At pH 7.5, the Km for citrate was high (0.64 mM), whereas at pH 5.5, the Km was low (57 microM). This is consistent with the concept that the -2 form of citrate is the transported species. In addition, maximal currents at pH 5.5 were 70% higher than those at pH 7.5, and our data show that the -3 form acts as a competitive inhibitor. Simultaneous measurements of substrate-evoked currents and tracer uptakes under voltage-clamp condition, as well as a thermodynamic approach, gave a Na+ to citrate or a Na+ to succinate stoichiometry of 3 to 1. SDCT1-mediated currents were inhibited by phloretin. This plant glycoside also inhibited the SDCT1-specific sodium leak in the absence of substrate, indicating that at least one Na+ binds to the transporter before the substrate. The data presented provide new insights into the biophysical characteristics and physiological implications of a cloned dicarboxylate transporter.
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Affiliation(s)
- X Z Chen
- Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
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262
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Abstract
A new and practical synthetic approach to 3-substituted delta 3,5(6)-Steroids, as potential 5 alpha-reductase inhibitor, is described. The key step involves Pd-catalyzed coupling reaction of steroid 3-enol 5H-3-oxo-octafluoropentanosulfonates. 3-Phenylacetylenyl substituted delta 3,5(6)-steroid 3g and 3-phosphate substituted delta 3,5(6)-steroid 3f in our synthesized compounds exhibited high 5 alpha-reductase inhibitory activity in vitro assay.
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Affiliation(s)
- W Tian
- Shanghai Institute of Organic Chemistry, Chinese Academy of Science, China
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263
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Sun F, Song G, Tian W, Zhao H, Pan Y. [The manifestations of 496 cases with thyroid-related immune orbitopathy and normal thyroid function]. Zhonghua Yan Ke Za Zhi 1998; 34:283-6. [PMID: 11877209] [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: 02/24/2023]
Abstract
OBJECTIVE To observe the clinical manifestations of thyroid-related immune orbitopathy (TRIO) with normal thyroid function. METHODS 496 cases with TRIO were collected from 1973 to 1994 and their clinical manifestations were analyzed. RESULTS The clinical manifestations showed that males are more than females. The disease occurred in middle aged persons with unilateral exophthalmos as the primary early manifestation. Most of the cases had the signs of eyelids and extraocular muscle involvement. CONCLUSIONS The thyroid-related immune orbitopathy with normal thyroid function can be named thyroid-related immune orbitopathy-II. The clinical characteristics of this disease are unilateral, of signs of eyelids, exophthalmos and enlargement of eye muscles. The pseudo-tumors of the orbit are mainly considered for differential diagnosis.
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Affiliation(s)
- F Sun
- Department of Ophthalmology, Second Hospital of Tianjin Medical University, Tianjin 300211
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264
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Matusevicius D, Kivisakk P, Navikas V, Tian W, Soderstrom M, Fredrikson S, Link H. Influence of IFN-beta1b (Betaferon) on cytokine mRNA profiles in blood mononuclear cells and plasma levels of soluble VCAM-1 in multiple sclerosis. Eur J Neurol 1998; 5:265-275. [PMID: 10210841 DOI: 10.1046/j.1468-1331.1998.530265.x] [Citation(s) in RCA: 17] [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] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Inflammatory cell infiltration within the central nervous system (CNS) and upregulation of both pro- and anti-inflammatory cytokines are characteristic for multiple sclerosis (MS). Treatment with interferon-beta 1b (IFN-beta1b) reduces the number and severity of MS relapses. To examine whether treatment with IFN-beta1b affects levels of cytokine mRNA expressing blood mononuclear cells (MNC) we employed in-situ hybridization with synthetic oligonucleotide probes to detect and enumerate IFN-gamma, TNF-alpha, IL-10, TGF-beta and perforin mRNA expressing cells in MS patients before treatment with IFN-beta1b and during treatment for 3-6 weeks and for 3-6 months. Numbers of blood MNC spontaneously expressing TNF-alpha and IL-10 mRNA were lower after 3-6 months of treatment, while numbers of IFN-gamma, TGF-beta and perforin mRNA expressing MNC were not affected by treatment. IFN-beta1b had no influence on levels of MBP-reactive IFN-gamma, TNF-alpha, TGF-beta, IL-10 or perforin mRNA expressing blood MNC determined after 3-6 weeks or 3-6 months of treatment. Parallel measurements of plasma concentrations of soluble vascular cell adhesion molecule-1 (sVCAM-1) revealed elevated levels after 3-6 weeks of treatment and these levels remained higher after 3-6 months of treatment. The results suggest that IFN-beta1b treatment upregulates plasma levels of sVCAM-1, but has little effects on numbers of blood MNC expressing mRNA of the pro- and anti-inflammatory cytokines under study.Copyright Lippincott-Raven Publishers
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Affiliation(s)
- D Matusevicius
- Division of Neurology, Karolinska Institute, Huddinge University Hospital, Stockholm, Sweden
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265
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Tian W, Song S, Liang F, Chen L, Jiang Y, Fu W. [Reoperative treatment of recurrent retroperitoneal tumor]. Zhonghua Wai Ke Za Zhi 1998; 36:221-3. [PMID: 11825372] [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: 02/23/2023]
Abstract
OBJECTIVE To improve the resection rate and survival rate for recurrent retroperitoneal tumor (RRT). METHOD We analysed 34 patients with RRT who were treated in our hospital from 1987 to 1995. One patient had benign tumor, the others malignant. Because 7 patients were operated on over one time, we performed 53 operations including complete resection in 42 patients, palliative resection 8 and biopsy 3. RESULT The 1-and 2-year survival rates for complete resection cases were 71.2% and 65.3%. The patients who received palliative resection and biopsy died within one year. CONCLUSION The diagnosis, preoperative preparation and intraoperative management of RRT are important to operative safety and survival rate. We emphasize the importance of reoperation and complete resection for RRT.
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Affiliation(s)
- W Tian
- Department of General Surgery, General Hospital of People's Liberation Army, Beijing 100853
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266
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Tian W, Zhang Z, Moldenhauer S, Guo Y, Yu Q, Wang L, Chen M. Detection of Borrelia burgdorferi from ticks (Acari) in Hebei Province, China. J Med Entomol 1998; 35:95-98. [PMID: 9538567 DOI: 10.1093/jmedent/35.2.95] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
From May 1992 to August 1993, 1,196 ticks were collected by flagging vegetation and from domestic animals in Chengde, Zhangjiakou, Shijiazhuang, and Handan districts of Hebei Province. Of those ticks collected, 954 were Haemaphysalis japonicum Warburton and H. longicornis Neumann, 205 were Ixodes persulcatus Schulze, and 37 were Dermacentor silvarum Olenev. Four strains of Borrelia burgdorferi were isolated from 135 I. persulcatus collected in Weichang and Zhuolu counties. Three of 574 Haemaphysalis spp. (collected in Laishui, Pingshan, and Xinglong counties) were positive for B. burgdorferi by direct immunofluorescent assay. One of 24 H. japonicum and 1 of 1 I. persulcatus (collected in Zhuolu) were positive for B. burgdorferi by polymerase chain reaction. This is the 1st report of a B. burgdorferi isolation from H. japonicum.
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Affiliation(s)
- W Tian
- Department of Bacteriology, Centers for Public Health and Disease Control of Hebei Province, Baoding, China
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267
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Tian W, Wang D. [The effects of TGF-beta on the proliferation and differentiation of human osteoblast-like cells]. Hua Xi Kou Qiang Yi Xue Za Zhi 1998; 16:65-8, 72. [PMID: 12078191] [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: 02/25/2023]
Abstract
Osteoblast-like cells were isolated from embryonic human calvarium with modified enzyme digestion method. TGF-beta which is believed having biological effects on bone cells was added into the culture medium with separate concentrations. The incorporation of 3H-TdR, 3H-Proline of osteoblast-like cells and alkaline phosphatase(ALP) content of the cells were tested to study the effects of the TGF-beta on the proliferation of osteoblasts. The results showed that TGF-beta increased ALP activity and the synthesis of collagen, and the cell proliferation was inhibited. It affected the proliferation and differentiation of osteoblast-like cells with the best 1 ng/ml among four concentration of 0.01-10 ng/ml. These findings suggested that function of TGF-beta might be modified by other local growth factors.
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Affiliation(s)
- W Tian
- Department of Oral and Maxillofacial Surgery, West China University of Medical Sciences
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268
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Tian W, Wang D. [The effects of IGF-II on the proliferation and differentiation of human osteoblast-like cells]. Hua Xi Kou Qiang Yi Xue Za Zhi 1998; 16:69-72. [PMID: 12078192] [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: 02/25/2023]
Abstract
Biological regulatory mechanism which supports bone cell development within the context of proliferation/differentiation relationship serves as a viable basis for addressing skeletal disorders and provides experiment and theoretic basis for selection and utilization of growth factors to reconstruct bone defect. Osteoblast-like cells isolated from human calvarium were used in this study. IGF-II were investigated by adding in the culture medium with different concentration. The results showed that IGF-II stimulated DNA, collagen synthesis and ALP activity of human osteoblast-like cells. Its effects were strong for proliferation and differentiation of osteoblast cells, when 10 ng/ml of four different concentrations (0.1, 1, 10 and 100 ng/ml) were used. IGF-II was proved to be important factor in bone regeneration.
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Affiliation(s)
- W Tian
- Department of Oral and Maxillofacial Surgery, West China University of Medical Sciences
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269
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Kivisäkk P, Tian W, Matusevicius D, Link H, Söderström M. Optic neuritis and cytokines: no relation to MRI abnormalities and oligoclonal bands. Neurology 1998; 50:217-23. [PMID: 9443483 DOI: 10.1212/wnl.50.1.217] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Acute unilateral monosymptomatic optic neuritis (ON) is a common first manifestation of MS if associated with multiple MS-like lesions on brain MRI and oligoclonal IgG bands (OB) in the CSF, whereas ON patients lacking these laboratory abnormalities are considered to have a good prognosis regarding future MS development. Several cytokines involved in immune regulation are upregulated in blood and even more noticeable in CSF in MS. To study a possible relation between cytokine profiles and presence versus absence of MS-like brain MRI lesions and CSF OB, we used in situ hybridization to examine mRNA expression of the proinflammatory interleukin-12 (IL-12), interferon-gamma, and tumor necrosis factor-alpha and the immune response downregulating IL-10, transforming growth factor-beta, and IL-4 in blood and CSF mononuclear cells (MNC) from 59 patients with untreated ON. There were no differences in numbers of MNC in blood or CSF expressing any of the cytokines under study, upon subgrouping the ON patients regarding presence (n = 31) versus absence (n = 28) of MRI lesions, presence (n = 45) versus absence (n = 14) of OB, or duration after onset of ON (<1 month, n = 30, versus >1 month, n = 29). Similarly, no differences were observed for numbers of myelin basic protein-reactive blood MNC expressing any of these cytokines after subgrouping according to these variables. Our findings suggest that the cytokine profile, as examined in this study, is less useful to determine the risk of future development of clinically definite MS in ON patients or as indicator for therapeutic interventions in ON. An upregulation of both pro- and anti-inflammatory cytokines in ON patients seems to be more related to the CNS disease per se, whether limited to the optic nerve or not, than to the inflammatory process characteristic for MS.
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Affiliation(s)
- P Kivisäkk
- Division of Neurology, Karolinska Institute, Huddinge University Hospital, Stockholm, Sweden
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270
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He Y, Song G, Tian W. [Diagnosis and treatment of blowout fracture of the orbit]. Zhonghua Yan Ke Za Zhi 1997; 33:447-9. [PMID: 10680549] [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: 02/15/2023]
Abstract
OBJECTIVE To analyze the diagnosis and treatment of blowout fracture of the orbit. METHODS 78 cases with blowout fracture of the orbit seen in 20 years were retrospectively analyzed. In different years, different methods of examinations were used. There were 16 cases who had undertaken X-ray examinations, 31 cases, ultrasonographic examinations and 72 cases, CT. RESULTS The positive rate of the CT examinations with blowout fracture of the orbit was 100%, CT having the tendency to eventually replace the X-ray. Ultrasonography shows only changes of intraorbital tissue, providing an auxiliary method for diagnosis. CONCLUSION With the progress of modern photographic methods, blowout fracture of the orbit is known more deeply and the advance helps in the improvement of the treatment of the disease.
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Affiliation(s)
- Y He
- Department of Ophthalmology, Tianjin Medical University
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271
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Jiao Y, Wang D, Tian W. [The culture of TMJ condylar cartilage cells and study on their biological behaviors in vitro]. Hua Xi Kou Qiang Yi Xue Za Zhi 1997; 15:187-9. [PMID: 11479991] [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: 02/20/2023]
Abstract
To investigate the behavoir of TMJ condylar cartilage cells in vitro, the mandibular condylar cartilage cells were harvested from a 5-month-old human fetus by dissection and sequential digestion with 0.25% trypsin and 0.2% collagenase (type II). The isolated cells were cultured in DMEM medium and identified by histochemical and immunohistochemical methods. Cell proliferation, morphology and ultrastructure were observed by phase-contrast microscope, cytologic staining and electronic microscope. In primarily cultured cells, polygonal chondroblast-like cells dominated and they were confirmed by the positive result of immunohistochemical examination for type II collagen and Toludin blue staining. In conclusion, the TMJ cells in this culture system kept their phenotype in vivo.
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Affiliation(s)
- Y Jiao
- College of Stomatology, West China University of Medical Sciences, Chengdu, Sichuan, China
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272
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Xu Y, Xu Z, Li W, Tian W, Peng Q, Weng S, Song Z, Ren J, Soloway RD, Shen Y, Wu J, Xu G. [Molfig, a software for displaying the structure and vibration of molecule]. Guang Pu Xue Yu Guang Pu Fen Xi 1997; 17:48-53. [PMID: 15810388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A Molfig software has been developed for displaying the structure and vibrational mode of molecule in our lab. Various functions and a friendly interface are equipped in the software. The testing results showed that the software may enhance our understanding of the relationship between the vibrational behavior and the structure of molecules.
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Affiliation(s)
- Y Xu
- Department of Chemistry, Peking University, National Key Laboratory of Rare Earth Materials Chemistry and Application, 100871 Beijing
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273
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Tian W, Yu S, Yun C, Zhu X, Wang J, Cao B. [Alteration in regional blood flow in minipigs' femur under inadequate decompression studied by isotopes washout method]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 1997; 14:26-9, 37. [PMID: 9817660] [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: 02/09/2023]
Abstract
We studied the alteration in regional blood flow in minipigs' femur under inadequate decompression after hyperbaric air exposure. The animals were placed in the hyperbaric chamber and exposed to the pressure of 0.5 MPa for 1.5 h, which was reduced to atmosphere at an ascent rate of 0.03-0.04 MPa/min. Regional blood flow in the femur was measured by the isotopes washout method of inhaling 133Xe. The radioactivity was monitored by a multifunctional blood flowmeter interfaced to a minicomputer. Before exposure, the values of average blood flow (F) of femur on the left and right were 15.4 +/- 1.8 and 16.9 +/- 2.0 ml/100 g.min respectively. The values of blood flow (f1) of hematopoietic marrow were 19.1 +/- 2.0 and 21.3 +/- 2.0 ml/100 g.min (n = 7). After inadequate decompression, F values were reduced to 10.3 +/- 1.8 and 11.1 +/- 1.6 ml/100 g.min and f1 values reduced to 13.9 +/- 1.4 and 13.8 +/- 1.0 ml/100 g.min (n = 7), which were obviously lower than those before exposure (P < 0.05). This experiment showed that significant reduction in blood flow in the femur region occurred under inadequate decompression after the exposure of minipigs hyperbaric environment, suggesting that ischemia is a causative factor of osteonecrosis.
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Affiliation(s)
- W Tian
- Institute of Biomedical Engineering, Xi'an Jiaotong University
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274
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Zhou XS, Shen GR, Wu JG, Li WH, Xu YZ, Weng SF, Soloway RD, Fu XB, Tian W, Xu Z, Shen T, Xu GX, Wentrup-Byrne E. A spectroscopic study of pigment gallstones in China. ACTA ACUST UNITED AC 1997. [DOI: 10.1002/(sici)1520-6343(1997)3:5<371::aid-bspy4>3.0.co;2-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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275
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Abstract
Twenty patients with a C3/4 spinal cord injury have been treated in our hospital since 1974. There were 15 new patients. The average follow up period was 68 months, ranging from 7 to 162 months. The 15 new cases were classified as Frankel A in nine cases, B in one, and C in five. Frankel A or B were usually accompanied by either an unstable spinal fracture or by spinal canal stenosis at the C3/4 level. Twelve patients received surgery. At the most recent follow up, eight of the 15 patients (53.3%) had improved according to Frankel's classification. Five, all Frankel A on remission, have died between 2 and 156 months after injury. Seven patients required tracheotomy on account of severe respiratory disturbance.
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Affiliation(s)
- A Sannohe
- Department of Orthopaedic Surgery, Hirosaki University School of Medicine, Japan
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276
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Song G, Tian W, Xiao L. [Orbital exenteration associated with cavity reconstruction]. Zhonghua Yan Ke Za Zhi 1996; 32:185-9. [PMID: 9590858] [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: 02/07/2023]
Abstract
OBJECTIVE A surgery was designed for the cosmetic improvement after orbital exenteration. METHODS Exenteration associated with simultaneous or secondary orbital reconstruction was performed on 22 patients, including transplantation of temporalis muscle in 11 cases, temporoparietal fascia with vascular pedicle in 10 cases and latissimus dorsi myocutaneous free flap in one case. RESULTS Except 7 patients who needed palpebral resection and orthopedic operation the second time, all of them were fitted well with ocular prostheses postoperatively and obtained satisfactory cosmetic results. CONCLUSION Among the three methods of orbital reconstruction, the temporoparietal fascia transplantation is the best.
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Affiliation(s)
- G Song
- Department of Ophthalmology, Tianjin Medical University
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277
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Samanta MP, Tian W, Datta S, Henderson JI, Kubiak CP. Electronic conduction through organic molecules. Phys Rev B Condens Matter 1996; 53:R7626-R7629. [PMID: 9982283 DOI: 10.1103/physrevb.53.r7626] [Citation(s) in RCA: 283] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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278
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Li G, Hu X, Jin D, Tian W, Phillips MR. A rating instrument for the evaluation of in-patient rehabilitation programmes in China. Results of reliability and validity testing. Br J Psychiatry Suppl 1994:58-65. [PMID: 7946233] [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: 05/22/2023]
Abstract
To objectively evaluate in-patient rehabilitation programmes in China, we developed a new rating scale: the Inpatient Psychiatric Rehabilitation Outcome Scale (IPROS). The scale has five subscales: performance in occupational therapy, daily activities, socialisation, personal hygiene, and level of interest in external events. Evaluators (physicians or nurses) observe patients for one week before coding items on a five-point scale. Comparison of four independent evaluators' results for 32 schizophrenic patients assessed on two separate occasions indicated that the inter-rater and test-retest reliability for the overall IPROS score and for the five subscale scores was excellent (all ICC values > or = 0.973). Validity was evaluated by comparing IPROS results with those of five other independently assessed clinical measures for 101 chronic schizophrenic patients before and after a six-month rehabilitation programme; concurrent validity and longitudinal validity were satisfactory (correlation coefficients 0.37-0.81, all P values < 0.01).
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Affiliation(s)
- G Li
- Community Services Department, Shashi City Veterans Psychiatric Hospital, Hubei, PRC
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279
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Tian W, Pearson V, Wang R, Phillips MR. A brief history of the development of rehabilitative services in China. Br J Psychiatry Suppl 1994:19-27. [PMID: 7946227] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- W Tian
- Shashi City Veterans Psychiatric Hospital, PRC
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280
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Rancé IM, Tian W, Mathews H, de Kochko A, Beachy RN, Fauquet C. Partial desiccation of mature embryo-derived calli, a simple treatment that dramatically enhances the regeneration ability of indica rice. Plant Cell Rep 1994; 13:647-651. [PMID: 24196246 DOI: 10.1007/bf00232938] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/1994] [Revised: 04/04/1994] [Indexed: 06/02/2023]
Abstract
Regeneration of indica rice varieties remains a limiting factor for researchers undertaking rice Iransformation experiments. As reported for japonica rice and other crops, partial desiccation of indica rice calli dramatically promotes organogenesis and leads to high regeneration ability. We are now able to obtain 66.5%, 61.1% and 73.7% of calli that regenerate plants for the indica varieties TN1, IR72 and IR64 whereas in non desiccated controls only 30.0%, 15.5% and 18.7% of calli regenerated, respectively. Plants obtained were phenotypically normal and 50% were highly fertile. Partial desiccation is a reliable and simple method for improving indica rice regeneration. It also shortens the time of in vitro culture.
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Affiliation(s)
- I M Rancé
- ILTAB/ORSTOM Division of Plant Biology-MRC7, 10666 North Torrey Pines Road, 92037, La Jolla, CA, USA
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281
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282
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Gao S, Tian W, Wang S. Simple high-performance liquid chromatographic method for the determination of captopril in biological fluids. J Chromatogr 1992; 582:258-62. [PMID: 1491052] [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: 12/27/2022]
Abstract
A rapid, simple and sensitive column-switching high-performance liquid chromatographic procedure for the determination of captopril in plasma and urine had been developed. p-Bromophenacyl bromide was used as a derivatizing reagent to react with captopril to form a product that showed ultraviolet-absorbing properties. For plasma samples the protein was removed with 6% perchloric acid before injection. The urine samples were directly injected into the chromatograph. The column-switching system was equipped with a pre-column (5 cm x 0.5 cm I.D.) packed with muBondapak C18 (37-50 microns) and an analytical column (15 cm x 0.5 cm I.D.) packed with YWG-C18, 10 microns. Impurities were washed from the pre-column with 0.2% acetic acid and the retained substances were eluted into the analytical column with acetonitrile-water-acetic acid (35:65:0.4, v/v). Captopril was detected at 260 nm. The calibration curve was linear in the range 20-1000 ng/ml for plasma and 10-200 micrograms/ml for urine. The recoveries averaged 103.2 and 99.5% for plasma and urine, respectively. The coefficients of variation were all less than 10%.
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Affiliation(s)
- S Gao
- Department of Clinical Pharmacology, Changhai Hospital, Shanghai, China
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283
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Xi T, Ma J, Tian W, Lei X, Long S, Xi B. Prevention of tissue calcification on bioprosthetic heart valve by using epoxy compounds: a study of calcification tests in vitro and in vivo. J Biomed Mater Res 1992; 26:1241-51. [PMID: 1429769 DOI: 10.1002/jbm.820260913] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Calcification is the principal cause of the clinical failures of the bioprosthetic heart valves fabricated from glutaraldehyde pretreated porcine aortic valves or bovine pericardium. In this paper, we compared the calcification on various types of bovine pericardiums pretreated with two hydrophilic epoxy compounds adding GA post-treatment (EP 1 and EP 2), glutaraldehyde (GA)- and nontreated pericardium (Fresh), respectively, by in vitro and in vivo tests. Significant decrease of calcification was found by pretreatment with both epoxy compounds rather than with glutaraldehyde: 0.250 +/- 0.001 (Fresh), 0.276 +/- 0.058 (EP 1), 0.302 +/- 0.071 (EP 2), and 0.478 +/- 0.172 (GA) micrograms (Ca)/mg (dried tissue), respectively, after 20 days dipping in a simulating serum solution in vitro; 115.13 +/- 60.11 (Fresh), 129.84 +/- 51.08 (EP 1), 167.39 +/- 20.81 (EP 2), and 205.19 +/- 16.86 (GA) micrograms/mg, respectively, after 3 months subcutaneous implantation in rabbits. The in vitro method for evaluating calcification designed by us gave the similar order among four samples with that obtained by in vivo test. Because the bovine pericardium pretreated with the epoxy compounds adding GA post-treatment possesses the greater tenacity than that pretreated only with epoxy compounds or GA, meanwhile the calcification is also significantly decreased with this pretreatment, it may be expected that the bovine pericardium with this pretreatment will have the greater anticalcification and durability in dynamic stress.
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Affiliation(s)
- T Xi
- Center of Medical Devices, National Institute for the Control of Pharmaceutical and Biological Products, Beijing, China
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284
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Abstract
The haemocompatibility of a polymer having the phospholipid polar group, poly(2-methacryloyloxyethyl phosphorylcholine (MPC)-co-n-butyl methacrylate(BMA)), was evaluated by a monoclonal antibody SZ-21 (directing specifically against the membrane glycoprotein complex IIIa of human platelet) radioimmunoassay method. The study showed that poly(MPC-co-BMA) possessed better haemocompatibility than segmented polyurethane (SPEU). Radioactivity of platelets adhered (counts per min/cm) on a polyethylene (PE) tube coated with poly(MPC-co-BMA) was 19.51 +/- 5.58, with albumin; 20.05 +/- 7.29, with SPEU having sulphonated group; 76.10 +/- 18.9, with SPEU; 287.0 +/- 95.0, PE treated by plasma irradiation; 2091 +/- 261, and original PE was 1772 +/- 116. The results were further certified by scanning electron microscopic observations.
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Affiliation(s)
- T Xi
- Center of Medical Devices, National Institute for the Control of Pharmaceutical and Biological Products, Beijing, China
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285
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Abstract
Twenty-six pluriparous Suffolk ewes were used to monitor the effects of four hormone treatments on the rate of uterine involution, which was assessed by means of radio-opaque markers and radiography. The close correlation between measurements of the genital tract in live sheep and after slaughter indicated that this method of monitoring uterine involution was acceptably accurate. Uterine involution was complete by about 29 days after lambing. None of the hormone treatments with progesterone, oestradiol-17 beta, prostaglandin F2 alpha or an oxytocin analogue, administered shortly after lambing, had any effects on the rate of uterine involution. There was no correlation between the duration of increased plasma concentrations of 13.14 dihydro-15-keto-prostaglandin F2 (PGFM) and the rate of uterine involution.
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Affiliation(s)
- W Tian
- Department of Surgery and Obstetrics, Royal Veterinary College, North Mymms, Hatfield, Hertfordshire
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286
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Abstract
Uterine and cervical involution after calving was measured sequentially in 25 parous commercial Friesian cows by using electronic calipers and real-time ultrasound imaging, transrectally. Ovarian activity was monitored by using real-time ultrasound imaging and by the assay of milk progesterone concentrations. Peripheral plasma prostaglandin F2 alpha metabolite concentrations were assayed during this period. Five groups of five cows were treated intramuscularly, approximately 48 hours after calving, with either 100 mg progesterone in oil, 25 mg dinoprost tromethamine, 5 mg oestradiol benzoate, 1.2 mg of the long-acting oxytocin analogue carbetocin or 5 ml sterile water. There were no statistically significant differences between the intervals from calving to the completion of involution or between the intervals from calving to the first ovulation for the cows in the different groups. The mean PGFM concentrations in the peripheral circulation were significantly higher in the carbetocin-treated group, presumably owing to the stimulation of endogenous prostaglandin F2 alpha secretion. This study provides no evidence that a single treatment with any of the four hormones significantly affected the reproductive function of the cows after calving.
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Affiliation(s)
- W Tian
- Department of Surgery and Obstetrics, Royal Veterinary College, North Mymms, Hatfield
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287
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Affiliation(s)
- W Tian
- Department of Surgery and Obstetrics, Royal Veterinary College, Hatfield, Hertfordshire
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288
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Song G, Tian W, Xiao L, Lian Z, Zhang Z, Li J. [Computed tomography and magnetic resonance imaging of choroidal melanoma]. Yan Ke Xue Bao 1990; 6:76-9. [PMID: 2289579] [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: 12/31/2022]
Abstract
Ten choroidal melanomas studied were with computed tomography (CT, nine cases) and magnetic resonance imaging (MRI, one case). Both techniques detected all the intraocular tumors with localization and determination of the extent of the lesions. Three of them were found to have extraocular extension. Because both T1 and T2 were relatively shortened in melanoma, on T-weighted MR image, the tumor was seen as an area of moderately high signal and on T weighted image, melanoma appeared as an area of low signal. MRI can provide a histological diagnosis of this tumor.
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Affiliation(s)
- G Song
- Department of Ophthalmology, Second Affiliated Hospital of Tianjin Medical College, China
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