1.Changes of splenic T-lymphocyte subsets in rats with acute pancreatitis
Chinese Journal of Current Advances in General Surgery 2004;0(06):-
Objective: To examine T-lymphocyte subsets of peripheral blood and splenic cells in rat with acute pancreatitis(AP),to investigate the changes of immune functional status in the development of acute pancreatitis.Methods: AP model was developed in adult male rats by retrograde injection of 4% sodium taurocholate in the pancreatic duct.T-lymphocyte subsets( CD3,CD4,CD8) of peripheral blood and splenic cells was measured by Flow Cytometer.Results: There was no singificant change in the stage of MAP.In the stage of SAP,the levels of CD3 and CD4 and CD4/CD8 of peripheral blood were decreased,the decrease of T-lymphocyte subsets in splenic cells was more obvious than those in peripheral blood.Conclusion:Spleen shows a negative immunologic function in the stage of SAP and promote the development of AP.
2.THE EXPRESSION IN SITU OF TELOMERASE RNA AND THE PROGNOSIS OF BLADDER TRANSITIONAL CELL CARCINOMA
Yu HAN ; Baofa HONG ; Yon YANG
Medical Journal of Chinese People's Liberation Army 2001;0(11):-
To study the expression of human telomerase RNA(hTR) in different grades of bladder transitional cell carcinoma and its relation to its prognosis. With in situ hybridization, the expression of hTR was observed in 67 cases of bladder transitional cell carcinoma specimens, to be compared with specimens of 10 normal bladder tissue and 10 benign lesions. The RNA probe used in hybridization was telomerase reverse transcript (TERT), and the marker was digoxin. There was a significent correlation between the expression of hTR and grading and prognosis. hTR is considered as an important and independent prognostic factor in this carcinoma.
3.Comparative Assessment of Immunohistochemical and Zieh1-Neelsen Stains for Demonstration of Mycobacterium Tuberculosis.
Mee Yon CHO ; Soon Hee JUNG ; Woo Ick YANG
Korean Journal of Pathology 1993;27(3):243-248
To obtain a useful method for the identification of mycobacteria in tissue section, we evaluated 118 cases of tuberculosis: 48 pulm onary, 14 lymph nodal and 56 synovial tuberculosis. Seventy nine of these cases underwent the culture study. Sections stained with anti-Mycobacterium bovis were compared with the results of the Zieh1-Neelsen stain and culture. The immunohistochemical stain for Mycobacterium bovis in al examined cases was not any more sensitive than the Zieh1-Neelsen stain(p>0.05). Neverthless, the immunohistochemical stain was a useful method for the localization of mycobacteria because of the striking contrast between its background and the wider dimension of a positive area. Immunoreactive areas demonstrated a few intact mycobacteria showing a positive reaction in the Zieh1-Neelsen stain. In conclusion, double staining method using the immunohischemical stain for Mycobacterium bovis and the Zieh1-Neelsen stain is an efficient technique in oder to confirm the diagnosis of tuberculosis.
4.The role of anti-annexin A2 antibodies in antiphospholipid syndrome
Wen AO ; Hui ZHENG ; Xiaowei CHEN ; Yon SHEN ; Chengde YANG
Chinese Journal of Rheumatology 2009;13(6):364-367
Objective This study has explored the role of antibody against annexin A2 in patients with antiphospholipid syndrome (APS) and systemic lupus erythematosus (SLE). Methods Using purified recombinant annexin A2, IgG anti-annexin A2 antibody was measured by ELISA in 101 APS patients, 41 SLE patients with thrombosis, 124 SLE patients without thrombosis and 120 healthy controls. Results The positive rate of IgG anti-annexin A2 antibody in APS patients and SLE patients with thrombosis was 21.8%, 26.8%, respectively, they were all significantly higher than in SLE patients without thrombosis (6.5%). IgG anti-annexin A2 antibody was associated with thrombosis and/or pregnancy morbidity (P<0.01). Conclusion Anti-annexin A2 antibody is associated with thrombosis and/or pregnancy mnrbidity. It suggests that anti-annexin A2 antibody may be helpful in identifying in some potential AIRS.
5.Quantitative Determination of Emod in and Chrysophanic Acid in Compound Rhubarb Spray by RP -HPLC
Xinchun WANG ; Shixiang HOU ; Changming YANG ; Zhilin HU ; Yon YUAN
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(01):-
Objective To establish a method for the determi nation of emodin and chrysophanic acid in Compound Rhubarb Spray by HPLC.Methods The ODS column was applied.methanol∶water(87∶13)served as mobile phase.The detectio n wavelength was at 254nm and the flow r ate was 0.65ml /min.Results The average recovery of emodin was 99.48%with relative standard deviation being 1.75%(n=9)and the average recovery of chrysoph anic acid was 101.46%with rela-tive standard deviation being 2.85%(n=9).Conclusion The method was simple,rapid and reli able.It is suitable for the quality control of Compound Rhubarb Spray.
6.Study on micro-emulsions of volatile oil in rhubarb of compound liquid spray by triangular phase diagram
Xinchun WANG ; Shixiang HOU ; Changming YANG ; Yon YUAN
Chinese Traditional Patent Medicine 1992;0(03):-
AIM: To optimize the best prescription of micro-emulsions of volatile oil in rhubarb of compound liquid spray by triangular phase diagram METHODS : Poloxamer-108 was used as emulsifiers,absolute alcohol as assistant emulsifiers,volatile oil from Lonicera dasystyla and Curcuma longa as the oil phase,the proportion between the emulsifier and append-emulsifier was established RESULTS : Optimized ratio of Poloxamer-108 and alcohol was 1∶10,the volatile oil in prescription formed micro-emulsions,distributing stably in the spray CONCLUSION : The study of micro-emulsions of volatile oil in compound liquid preparation of traditional Chinese medicine by triangular phase diagram offered a short-cut for resolving its stability. The experiment also suggested that the micro-emulsions could increase solubility of insoluble volatile oil from TCM.
8.An Analysis of Stress Pattern in the Coracoclavicular Ligaments with Scapular Movements: A Cadaveric Study Using Finite Element Model.
Yoon Sang KIM ; In Sung KIM ; Yon Sik YOO ; Seong Wook JANG ; Cheol Jung YANG
Clinics in Shoulder and Elbow 2015;18(3):152-158
BACKGROUND: Acromioclavicular (AC) stability is maintained through a complex combination of soft-tissue restraints that include coracoclavicular (CC), AC ligament and overlying muscles. Among these structures, the role of the CC ligament has continued to be studied because of its importance on shoulder kinematics, especially after AC injury. This study was designed to determine the geometric change of conoid and trapezoid ligaments and resulting stresses on these ligaments according to various scapular motions. METHODS: The scapuloclavicular (SC) complex was isolated from a fresh-frozen cadaver by removing all soft tissues except the AC and CC ligaments. The anatomically aligned SC complex was then scanned with a high-resolution computed tomography scanner into 0.6-mm slices. The Finite element model of the SC complex was obtained and used for calculating the stress on different parts of the CC ligaments with simulated movements of the scapula. RESULTS: Average stress on the conoid ligament during anterior tilt, internal rotation, and scapular protraction was higher, whereas the stress on the trapezoid ligament was more prominent during posterior tilt, external rotation, and retraction. CONCLUSIONS: We conclude that CC ligament plays an integral role in regulating horizontal SC motion as well as complex motions indicated by increased stress over the ligament with an incremental scapular position change. The conoid ligament is the key structure restraining scapular protraction that might occur in high-grade AC dislocation. Hence in CC ligament reconstructions involving only single bundle, every attempt must be made to reconstruct conoid part of CC ligament as anatomically as possible.
Biomechanical Phenomena
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Cadaver*
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Dislocations
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Ligaments*
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Muscles
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Scapula
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Shoulder
9.Small Cell Osteosarcoma Similar to Ewing's Sarcoma in Histologic Findings and MIC2 Expression: A case report.
Yoon Mee KIM ; Suk Woo YANG ; Mee Yon CHO ; Soon Won HONG ; Byung Ho CHOI
Korean Journal of Pathology 1999;33(3):204-209
Small cell osteosarcoma is a rare form of osteosarcoma and the histological differential diagnosis from other small round cell tumors (SRCTs) is difficult. The immunohistochemical stain for MIC2 has been considered an useful diagnostic marker for Ewing's sarcoma and primitive neuroectodermal tumors but recently, other SRCTs such as malignant lymphoma and embryonal rhabdomyosarcoma also showed positive reaction. Therefore, the usefulness of MIC2 must still be proven. We experienced a case of small cell osteosarcoma of the mandible in a 25-year-old man. Histologically, the tumor consisted of small round cells that resembled those of Ewing's sarcoma. Immunohistochemically, the tumor cells expressed diffuse strong positive reaction for MIC2 gene products. However, the scanty foci of lacy osteoid material between the tumor cells seemed to be diagnostic of osteosarcoma. The histologic and immunohistochemical findings of this case suggest close relationship between small cell osteosarcoma and Ewing's sarcoma.
Adult
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Diagnosis, Differential
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Humans
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Lymphoma
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Mandible
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Neuroectodermal Tumors, Primitive
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Osteosarcoma*
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Rhabdomyosarcoma, Embryonal
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Sarcoma, Ewing*
10.Clinical Effects of Eutropin(Recombinant Human Growth Hormone) in Patients with Turner Syndrome.
Duk Hee KIM ; Byung Chul LEE ; Sae Yon YANG ; Yoo Yong CHUNG
Journal of Korean Society of Pediatric Endocrinology 1998;3(2):172-183
Background:Eutropin is a recombinant human growth hormone preparation and has been used in patients with growth hormone deficiency. Short stature is a characteristic feature of Turner syndrome, which is caused by sexual chromosomal anomalies. Growth hormone therapy would increase growth velocity and increase the ultimate final height in patients with Turner syndrome. The purpose of this study was to evaluate the clinical effects and safety in patients with Turner syndrome with Eutropin treatment. Subjects and METHODS:60 patients with Turner syndrome,who were diagnosed by chromosome study,were treated with Eutropin 1IU/kg/week for 12 months and followed up every 3 month. The height and weight were evaluate at 0, 3, 6, 9, 12 months. A complete blood count, ESR, urinary analysis and chemistry studies were done every 3 month. IGF- I , T4, TSH & anti-GH antibody were measured at 6 months and 12 months. Chest X-ray was checked at 0, 6 ,12 months. RESULTS:60 patients were enrolled but 10 patients were lost or treated irregularly and excluded in the study of growth effect. but included all cases in safety analysis. At the onset of Eutropin therapy,their mean age was 10.8+/-2.9 years old(range 4.2- 14.9yr)and the height was 121.1+/-13.7cm(-3.1+/-0.9 SDS) and yearly growth velociy was 3.4+/-1.5cm. Their weight was 30.5+/-10.6kg and bone age 9.1+/-3.0 yrs. After Eutropin treatment, mean height was increased to 123.2+/-13.5cm at 3 months, 125.2+/-13.1cm at 6 months, 127.5+/-12.4cm at 9 months, 128.3+/-12.8cm at 12 months. Height velocity were increased to 8.3+/-3.1cm at 3 months, 8.1+/-2.6cm at 6 months, 7.6+/-1.9cm at 9 months and 7.1+/-1.9cm at 12 months(P<0.001). Height SDS at 0, 3, 6, 9, 12 months were -3.1+/-0.9, -2.9+/-1.0, -2.7+/-0.9, -2.7+/-0.9 respectively(P>0.001).Their bone age were 9.1+/-3.0yr, 9.6+/-2.9yr, 10.2+/-2.7yr before and 6 & 12 months after treatment respectively. HA/BA were 0.84+/-0.15, 0.87+/-0.13, 0.88+/-0.12 at before and 6 & 12 months after treatment respectively(P<0.05). Growth velocity of 4-8 yrs group was most prominent compared to other groups. Serum IGF- I concentration was increased from 167.4+/-85.8ng/ml to 368.4+/-158.1ng/ml at 6 months and 423.2+/-181.0ng/ml at 12 month(P<0.001) after treatment. No significant changes were observed in thyroid function, CBC, ESR, Blood chemistry and urinalysis. Anti-hGH antibody were positive in 2 patients, but these didnot attenualte the growth velocity. CONCLUSION: Treatment with Eutropin increased significantly height velocity in patients with Turner syndrome. No specific adverse events were observed during Eutropin therapy.
Blood Cell Count
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Chemistry
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Growth Hormone
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Human Growth Hormone
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Humans*
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Thorax
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Thyroid Gland
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Turner Syndrome*
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Urinalysis