801
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Ziegler G, Kumar SVK, Rubahn H, Kuhn A, Sun B, Bergmann K. Angularly resolved rotational energy transfer in highly vibrationally excited states: Na2(v=31)–Ne. J Chem Phys 1991. [DOI: 10.1063/1.460611] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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802
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Sun B, Kobayashi T, Cursted T, Grossmann G, Robertson B. Application of a new ventilator-multi-plethysmograph system for testing efficacy of surfactant replacement in newborn rabbits. Eur Respir J 1991; 4:364-70. [PMID: 1864353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We applied a new ventilator-multi-plethysmograph system to evaluate the effect of surfactant replacement in newborn rabbits under well controlled, nearly physiological conditions characterized by normal ECG and adequate PCO2 in right ventricular heart blood obtained at the end of the experiment. Up to 10 animals were ventilated in parallel with a pressure-constant common respirator system. Using a working pressure of 4.9 kPa (50 cmH2O), we could adjust the pressure delivered to each animal within the range of 0.49-4.4 kPa (5-45 cmH2O), by changing the length of an open high-resistance tube constituting the outflow limb of the connection between the common ventilator tube and the tracheal cannula. Immature newborn animals obtained after 27.5 days gestation and ventilated for 30 min with a tidal volume of 8-10 ml.kg-1 had a mean +/- SD lung-thorax compliance of 4.2 +/- 1.1 ml.kPa-1.kg-1 (0.41 +/- 0.11 ml.cmH2O-1.kg-1) and PCO2 of 8.5 +/- 1.9 kPa. In littermates treated at birth with a large dose of natural surfactant (Curosurf, 200 mg.kg-1, compliance increased to 6.0 +/- 1.0 ml.kPa-1.kg-1 (0.68 +/- 0.10 ml.cmH2O-1.kg-1) (p less than 0.01) and PCO2 decreased to 6.9 +/- 1.2 kPa (p less than 0.01). Near-term animals, obtained at 30 days gestation and ventilated under similar conditions had a compliance of 7.2 +/- 0.9 ml.kPa-1.kg-1 (0.71 +/- 0.09 ml.cmH2O-1.kg-1) and PCO2 of 6.4 (1.2) kPa. Administration of surfactant (same dose as above) to these mature animals at birth had no adverse effects.
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803
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Sun B, Kobayashi T, Cursted T, Grossmann G, Robertson B. Application of a new ventilator-multi-plethysmograph system for testing efficacy of surfactant replacement in newborn rabbits. Eur Respir J 1991. [DOI: 10.1183/09031936.93.04030364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We applied a new ventilator-multi-plethysmograph system to evaluate the effect of surfactant replacement in newborn rabbits under well controlled, nearly physiological conditions characterized by normal ECG and adequate PCO2 in right ventricular heart blood obtained at the end of the experiment. Up to 10 animals were ventilated in parallel with a pressure-constant common respirator system. Using a working pressure of 4.9 kPa (50 cmH2O), we could adjust the pressure delivered to each animal within the range of 0.49-4.4 kPa (5-45 cmH2O), by changing the length of an open high-resistance tube constituting the outflow limb of the connection between the common ventilator tube and the tracheal cannula. Immature newborn animals obtained after 27.5 days gestation and ventilated for 30 min with a tidal volume of 8-10 ml.kg-1 had a mean +/- SD lung-thorax compliance of 4.2 +/- 1.1 ml.kPa-1.kg-1 (0.41 +/- 0.11 ml.cmH2O-1.kg-1) and PCO2 of 8.5 +/- 1.9 kPa. In littermates treated at birth with a large dose of natural surfactant (Curosurf, 200 mg.kg-1, compliance increased to 6.0 +/- 1.0 ml.kPa-1.kg-1 (0.68 +/- 0.10 ml.cmH2O-1.kg-1) (p less than 0.01) and PCO2 decreased to 6.9 +/- 1.2 kPa (p less than 0.01). Near-term animals, obtained at 30 days gestation and ventilated under similar conditions had a compliance of 7.2 +/- 0.9 ml.kPa-1.kg-1 (0.71 +/- 0.09 ml.cmH2O-1.kg-1) and PCO2 of 6.4 (1.2) kPa. Administration of surfactant (same dose as above) to these mature animals at birth had no adverse effects.
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804
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Skubitz KM, Stroncek DF, Sun B. Neutrophil-specific antigen NB1 is anchored via a glycosyl-phosphatidylinositol linkage. J Leukoc Biol 1991; 49:163-71. [PMID: 1825110 DOI: 10.1002/jlb.49.2.163] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Neutrophil-specific alloantibodies and the antigens they recognize are important in clinical medicine but little is known about the structure of these antigens. Alloimmunization to the antigen NB1 is a clinically important cause of neonatal neutropenia and leukocyte-mediated transfusion reactions. A novel mechanism of protein attachment to cell membranes involving the covalent linkage of the protein through an oligosaccharide to phosphatidylinositol has recently been defined. Many proteins which are anchored to the cell membrane by this mechanism can be released by treatment with phosphatidylinositol-specific phospholipase C (PI-PLC). The 58-64-kDa human neutrophil surface protein which contains the NB1 antigen was labeled with 125I by using lactoperoxidase and examined for PI-PLC sensitivity. The 58-64-kDa protein was specifically released from the cell by treatment with PI-PLC, and the mobility of the protein under non-denaturing conditions using non-ionic detergent was increased by treatment with PI-PLC. Surface expression of the NB1 antigen was slightly up-regulated by treatment with the chemotactic peptide f-met-leu-phe. Removal of N-linked carbohydrates with endoglycosidase-F decreased the apparent molecular weight of the protein to approximately 45-kDa. The data suggest that most of the 58-64-kDa protein bearing the neutrophil-specific antigen NB1 is anchored to the membrane through a glycosyl-phosphatidylinositol linkage.
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805
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806
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Shen GX, Su N, Zhu HF, Wang XL, Zhang Y, Sun B, Hong SY, Liu GY. Immunomodulation of musk-moxa-string therapy in patients with scrofula. JOURNAL OF TONGJI MEDICAL UNIVERSITY = TONG JI YI KE DA XUE XUE BAO 1990; 10:164-8. [PMID: 1979355 DOI: 10.1007/bf02986456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The effects of musk-moxa-string therapy on the immune system in man were investigated in 39 patients with scrofula. Before treatment, the numbers of peripheral blood (PB) CD3+ and DC4+ cells and the ratio CD4+/CD8+ were found to be lower in patients with scrofula than in normal subjects, while those of B cells and DR+ cells were higher. Response of peripheral blood mononuclear cells (PBMC) to phytohemagglutinin (PHA) diminished in patients with scrofula. At month 2-6 of musk-moxa-string therapy the number of PB CD8+ cells showed slight diminution along with significant increases in CD3+ and CD4+ cells and CD4+/CD8+ ratio in total lymphocytes (P less than 0.001). In vitro a marked increased blastogenic response to mitogen stimulation with PHA was observed in PBMC of patients with scrofula after treatment (P less than 0.001). In contrast, B lymphocytes, monocytes, DR+ cells and blastogenic response to concanavalin A and pokeweed mitogen were not influenced by musk-moxa-string therapy.
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807
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Su N, Shen GX, Sun B, Wang XL, Zhu HF, Zhang Y, Yang DF. Studies on monoclonal anti-isotypic and anti-idiotypic antibodies against leukemia and myeloma: II. Preparation and characteristics of monoclonal anti-isotypic antibodies to IgM from B chronic lymphocytic leukemia. JOURNAL OF TONGJI MEDICAL UNIVERSITY = TONG JI YI KE DA XUE XUE BAO 1990; 10:176-80. [PMID: 2255006 DOI: 10.1007/bf02986458] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Five hybridomas producing McAbs against human serum IgM-isotype were obtained by fusing the myeloma NS-1 cell and the BALB/C murine spleen cell which had been immunized by serum IgM of patient with B chronic lymphocytic leukemia (B-CLL). These McAbs only reacted with human IgM, not with other immunoglobulins in ELISA and immune double diffusion test. An approximate positive rate of peripheral blood lymphocyte (PBL) was got when these McAbs and the McAbs against B cell were tested by indirect immunofluorescent assay. The positive rate was similar to that obtained by direct immunofluorescent test. Immunoblotting showed that the molecular weight of the antigen to these McAbs was 70-90 Kd, indicating that the antigen was IgM. The practical value of the McAbs against human IgM was also discussed.
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808
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Zhang ZZ, Zhong SZ, Sun B, Ho GT. Blood supply of the flexor digital tendon in the hand and its clinical significance. Surg Radiol Anat 1990; 12:113-7. [PMID: 2396176 DOI: 10.1007/bf01623335] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An anatomical study on the blood sources and vascularity of the flexor digital tendon was conducted in the upper extremities of fresh cadavers by means of arterial injection and meticulous dissection of the transparent tendon under the microscope. According to whether or not synovial membrane surrounded the tendon, the flexor digital tendon can be divided into 2 regions: non-synovial and synovial. The major intrinsic blood supply of the digital tendon was in the form of longitudinal vascular bundles, while the transverse anastomotic branches were short and sparse. The non-synovial region of the tendon was covered by paratenon and the vascular distribution of this region was uniform. In the synovial sheath, the blood vessels distributed only on the dorsal side, while the volar side was devoid of vessels. The profundus and superficialis tendons had an avascular zone at the proximal interphalangeal and metacarpophalangeal joints respectively. It was considered that the difference of the vascular architecture might be related to the mechanical force to which the tendon was subjected. The nutrition of tendon was discussed and the selection of tendon graft at operation was suggested.
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809
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Sun B, Gong Y. [An identification method for mineral drugs]. ZHONGGUO ZHONG YAO ZA ZHI = ZHONGGUO ZHONGYAO ZAZHI = CHINA JOURNAL OF CHINESE MATERIA MEDICA 1990; 15:266-9, 317. [PMID: 2275776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This paper is a report on a method for chemical identification of 58 mineral drugs. Combined with the Chinese traditional identification, the method can differentiate the sham and genuine drugs in a few minutes.
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810
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Sun B. [Decompensation of physiologic hypocalcemia in infants inducing vitamin D deficiency rickets]. ZHONGHUA YI XUE ZA ZHI 1990; 70:265-7, 20. [PMID: 2168795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
43 infants taking the same dosage of vitamin D and calcium were investigated. The results showed that vitamin D deficiency rickets (VDR) were still present in some infants when vitamin D was sufficient, because of deficiency of 1,25-dihydroxyvitamin D (1,25-(OH)2D3). Serum calcium, phosphorus, alkaline phosphatase, triiodothyronine (T3), thyroxine (T4), calcitonin (CT), immunoreactive parathyroid hormone (iPTH), and 25-hydroxyvitamin D (25 OHD3) concentrations were compared among infants with normal, VDR of the early and recovering stages. The decompensation of physiological hypocalcemia in infants is probably the real cause of VDR and the decompensation is correlated closely with the development of parathyroid gland. This new concept is raised both at home and abroad. More practical methods for the treatment and prevention of VDR are suggested.
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811
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Sun B. [A study on distribution characteristics of viral hepatitis and preventive strategy in Hangzhou]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 1990; 11:12-5. [PMID: 2108804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
By using the method of predictive survey, 1248 cases of acute viral hepatitis, which have been definitely diagnosed, in urban district, water-net areas, semi-mountainous and mountainous areas in Hangzhou were studied for the epidemiology and serum pathogenic typing in 1987. As a result, with the mixed infection of hepatitis A and hepatitis B at the rate of 1.20%, hepatitis A 69.71%, hepatitis B 7.13% non A non B hepatitis amounted to 21.96%. In urban and rural area, the percentage of hepatitis A ranked first while that non A non B hepatitis did second. The main risky factors in epidemicity of hepatitis A were: 1) the use of commode; 2) contact with the patients with hepatitis; 3) drinking unboiled water. Hepatitis A and hepatitis B transmitted mainly in the way of extra-intestines. Seeing dentist was the main risky factor. The relevant strategy was presented on the bases of the above-mentioned data.
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812
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Sun B, Su N, Zhu HF, Zhang Y, Wang XL, Shen GX. Studies on monoclonal anti-idiotypic antibodies to human B cell leukemia. JOURNAL OF TONGJI MEDICAL UNIVERSITY = TONG JI YI KE DA XUE XUE BAO 1989; 9:244-50. [PMID: 2630654 DOI: 10.1007/bf02909092] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Murine immunocytoma cell line, NS-1, was fused with spleen cells of Balb/C mice which had been stimulated by tolerogenic disaggregated human gamma globulin and immunized by purified serum IgM from the patient with chronic B cell leukemia (B-CLL). 10 hybridoma cell lines secreting monoclonal anti-idiotype (anti-Id) antibodies to human CLL were obtained. The McAbs were subclasses belonging to IgM and of IgG mouse. Specificity and biologic characters of the monoclonal anti-Id antibodies from culture fluid or ascites were assayed by ELISA, indirect mixed ELISA sandwich, ELISA inhibition, immunofluorescence (IF) and IF inhibition. The study also proved that monoclonal anti-Id antibodies could react with homologous IgM, but not with Ig from normal donors or a panel of patients with myeloma. The results of IF and IF inhibition assay showed that monoclonal anti-Id antibodies were bound to lymphocytes of patient with B-CLL. Their reactivity was inhibited by homologous IgM, but not by lymphocytes of patients with ALL or lymphoma. Monoclonal anti-Id antibodies were heterogenous reactive patterns with cell lines in vitro.
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813
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Wang XL, Shen GX, Sun B, Su N, Zhang Y, Zhu HF, Huang LQ, Tang JZ, Zhang JL. Studies on biological characteristics and modulating factors of long-term cultured bone marrow cells of a myeloma patient in vitro. JOURNAL OF TONGJI MEDICAL UNIVERSITY = TONG JI YI KE DA XUE XUE BAO 1989; 9:134-8. [PMID: 2600980 DOI: 10.1007/bf02908962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In the present study we cultured in vitro bone marrow cells from a patient with multiple myeloma (IgD) and researched into the modulation of supernatant media of various leukemic lines on the growth of culture cells. Cells in the cultures were studied for their morphological, biochemical, immunological and ultrastructural features. Drug sensitivity assay was also performed. The results showed that supernatant media of 6 cell lines promoted cell growth, but most remarkable stimulating activity was displayed by supernatant media from U937 and CEM. Cell cloning effect attained to more than 90%. Cultured cells possessing biological characteristics of malignant cells were probably malignant cells from B cell lineage. This study indicated that long-term cultures of marrow cells might provide a tool useful for clinical and laboratory purpose and a method for studies on pathogenesis, regulation of hematopoiesis, cell differentiation and guide-way drugs.
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814
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Wang XL, Shen GX, Sun B, Su N. Studies on lymphocyte subpopulations and NK cell activities in epileptic patients. JOURNAL OF TONGJI MEDICAL UNIVERSITY = TONG JI YI KE DA XUE XUE BAO 1989; 9:25-8. [PMID: 2569541 DOI: 10.1007/bf02933740] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The subpopulations of T lymphocytes, B lymphocytes and macrophages of the peripheral blood in 58 cases of epilepsia were studied with McAb by IFA method. The activity of natural killer (NK) cells of peripheric blood monocyte was investigated by 51Cr-releasing method. 22 healthy donors of about the same age served as controls. The results showed that the percentage of T3 and T4 lymphocytes in epileptic patients was decreased, and the ratio of T4/T8 was markedly reduced as compared to control group. The percentage of T8 lymphocytes was increased. There were no significant changes in B lymphocytes and macrophages. The NK cell activity also showed decrease. The results suggested abnormality in cellular immunity in epilepsia, which may be involved in the pathogenetic mechanism of the disease.
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815
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Sun B. A Study of Regular Education for Low Vision Children in a Chinese School for the Blind. JOURNAL OF VISUAL IMPAIRMENT & BLINDNESS 1989. [DOI: 10.1177/0145482x8908300123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The subjects of this study were 135 pupils of the Shanghai Blind Children's School. Congenital cataract led in the causes of blindness, optic atrophy came second, and microcornea and microphthalmus were third. Among the pupils 74 (54.8%) were totally blind, 56 (41.5%) were low-vision and 5 (371%) had vision of 0.3–0.4. A total of 83 pupils were considered to have usable residual vision for regular education with visual aids. Of the 83, 30 in 3 classes were followed up for two to four semesters, and teaching results were found to be good. None of the students’ conditions deteriorated during that period.
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816
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Dai SY, Lin DX, He TQ, Li HY, Meng XY, Sun B, Zhong SZ. Synovial plica syndrome of the knee and related anatomy. Chin Med J (Engl) 1988; 101:529-32. [PMID: 3147852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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817
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Sun B, Cao QL, Ou XR. [Adverse neurologic effects of metoclopramide. Report of 60 cases]. ZHONGHUA NEI KE ZA ZHI 1988; 27:358-60, 390. [PMID: 3197508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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818
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Zhong SZ, Wang GY, He YS, Sun B. The relationship between structural features of peripheral nerves and suture methods for nerve repair. Microsurgery 1988; 9:181-7. [PMID: 3054413 DOI: 10.1002/micr.1920090304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Based on techniques for identifying and distinguishing motor, sensory, and mixed fasciculi in peripheral nerves, the authors propose guidelines for selecting suture methods for nerve repair. When many mixed fasciculi are known to exist at the nerve lesion, epineurial repair is preferable; fascicular (perineurial) repair is more suitable when pure motor and sensory fasciculi are clearly recognized. Generally, epineurial repair is indicated for more proximal injuries, with fascicular repair most appropriate for more distal sites. A greater ratio of epineurial connective tissue to intrafascicular nervous tissue implies an inclination toward fascicular repair.
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819
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Sun B, Liu F, Li GH. [Immunomodulation of cimetidine in mice]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1988; 9:89-93. [PMID: 3055817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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820
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Tseng JK, Sun B, Tseng L. The effect of progestin on rabbit endometrial aromatase activity. JOURNAL OF STEROID BIOCHEMISTRY 1988; 29:9-13. [PMID: 3347054 DOI: 10.1016/0022-4731(88)90369-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The ability of rabbit endometrium to synthesize estrogen was investigated. Aromatase activity was measured by incubating the viable tissue fragments with [3H] testosterone at 37 degrees C and quantitated the [3H]estrogens at the end of 6 h incubation. The activity was not detectable in endometrium and myometrium of non-pregnant rabbits. In pregnant rabbit, the activity increased from 2 to 12 fmol/h/g of tissue in endometrium obtained from both gravid and nongravid uterine horns 4-8 days after mating. Aromatase activity in endometrium at implanted sites on the 8th day after mating reached up to 550 fmol/h/g of tissue. Hormonal regulation of the aromatase activity was studied directly in cultured rabbit endometrial stromal cells. Both progesterone and medroxyprogesterone acetate stimulated the activity with 2- to 25-fold increase over the control values (0.2-1 fmol/h/mg protein). The stimulation of aromatase activity by progestin was found to be both time- and dose-dependent. Estrogen, Bu2cAMP, forskolin, HCG or relaxin had no effect on the activity. Aromatase activity in glandular epithelial cells was neither detectable nor affected by progestin. These results indicate that aromatase activity in rabbit endometrium is concentrated in stromal cells and progestin stimulates the activity. However, estrogen, forskolin and relaxin which enhanced the stimulation of the activity by progestin in human endometrium had no effect on aromatase in rabbit endometrium. The increase of aromatase activity observed after the onset of conception may be physiologically important to increase the local estrogen content for decidualization of the endometrium.
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821
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Sun B, Zhu CN. [Ultrastructural study of neonatal lungs with respiratory distress syndrome]. ZHONGHUA BING LI XUE ZA ZHI = CHINESE JOURNAL OF PATHOLOGY 1987; 16:304-5, 56. [PMID: 2968172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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822
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Suter D, Jarvie TP, Sun B, Pines A. Observation of spin diffusion in zero-field magnetic resonance. PHYSICAL REVIEW LETTERS 1987; 59:106-108. [PMID: 10035114 DOI: 10.1103/physrevlett.59.106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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823
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Xu D, Wang G, Liu M, Sun B, Zhong S. Anatomical analysis of the cause of skin necrosis of the great toe after transplantation of the great toe nail flap. BRITISH JOURNAL OF PLASTIC SURGERY 1987; 40:283-7. [PMID: 3594058 DOI: 10.1016/0007-1226(87)90124-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Necrosis of skin on the medial side of the great toe has been a significant complication of the great toe nail flap. To investigate the reason for this, a study of the blood supply of the medial side of the great toe was carried out on 55 feet with the injection of red latex into the arteries and on 13 vascular cast specimens. It was found that, after the blood vessels from the plantar and dorsal sides of the great toe are severed during the operation, the skin of the medial side of the great toe is mainly supplied by the medial vascular network at the head of the first metatarsal bone. It is clear that the blood supply from this network may sometimes be insufficient to nourish the skin. It is suggested that the operative incision should be changed so as to increase the blood supply to the medial vascular network which may decrease the incidence of skin necrosis.
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824
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Sun B. [Advantage of the measurement of multiple parameters for pleural effusion for the differential diagnosis of tuberculosis and carcinomatous pleurisy]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 1987; 10:13-6, 61-2. [PMID: 3040353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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825
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Li SY, Li SK, Zhuang HX, Sun B, Meng SH, Cheng JP, Yuan L, Liu MZ, Zhong SZ. [Indications for using the scrotal septal flap in hypospadias repair and studies on its regional anatomy]. ZHONGGUO YI XUE KE XUE YUAN XUE BAO. ACTA ACADEMIAE MEDICINAE SINICAE 1986; 8:250-4. [PMID: 2953471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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826
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Tseng L, Tseng JK, Mann WJ, Chumas JC, Stone ML, Mazella J, Sun B, Amalfitano TG, Wallach RC. Endocrine aspects of human uterine sarcoma: a preliminary study. Am J Obstet Gynecol 1986; 155:95-101. [PMID: 2942037 DOI: 10.1016/0002-9378(86)90086-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The biologic effect of estrogen and progesterone in human uterine sarcoma is poorly understood in comparison to that of endometrial adenocarcinoma. In an attempt to elucidate the endocrine status of these tumors, we have investigated the ability of these tumors to synthesize estrogen by measuring the aromatase activity and studied the effect of aromatase inhibitors on the activity. In addition, the effect of estrogen and progesterone on aromatase activity and the growth pattern of these tumors were studied in cell culture and athymic mice systems. Aromatase activities in eight uterine sarcomas ranged from 0.7 to 37 fmol/hr X mg protein, which were within the range or higher than the activity found in normal proliferative endometrium (0.5 to 3 fmol/hr X mg of protein, means = 1.6, n = 10). These results indicate that uterine sarcomas are capable of producing estrogen. However, the enzyme activity showed no correlation with the morphology of tumors or the age of patients. Results from the kinetic studies of aromatase activity in one of the uterine sarcomas indicated that 19-nortestosterone, testolactone, and aminoglutethimide (the most effective one) inhibited aromatase activity. In addition, induction of aromatase activity in two uterine sarcomas was investigated in cell cultures. Progesterone caused an eightfold increase in activity in a sarcoma that was estrogen and progesterone receptor positive but had no effect in a tumor that was estrogen and progesterone receptor negative. The growth rate of two estrogen/progesterone receptor-negative uterine sarcomas was studied in cell culture and in athymic mice. Progestin, but not estrogen, reduced the growth rate in both systems; 30 nmol/L of estrogen had no effect on the growth rate. In summary, we have found that human uterine sarcoma is able to synthesize estrogen. Progesterone is able to induce the aromatase activity in estrogen/progesterone receptor-positive tumors, and progesterone also suppresses the tumor growth rate in estrogen/progesterone receptor-negative tumors. These results suggest that a select group of uterine sarcomas is sensitive to steroid hormone and that progesterone may be potentially beneficial for therapeutic treatment of select uterine sarcomas.
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827
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Zhang YY, Sun B. [Application of the measurement of the specific bronchial reactivity]. ZHONGHUA JIE HE HE HU XI XI JI BING ZA ZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 1986; 9:107-9, 127. [PMID: 3743284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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828
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Tseng L, Mazella J, Sun B. Modulation of aromatase activity in human endometrial stromal cells by steroids, tamoxifen and RU 486. Endocrinology 1986; 118:1312-8. [PMID: 2936597 DOI: 10.1210/endo-118-4-1312] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The regulation of aromatase activity (AA) in human endometrial stromal cells by various steroids was studied in primary cell culture. Various progestins, but not androgens or glucocorticoids, stimulated AA. Medroxyprogesterone acetate (MPA) was the most potent progestin. Estrogen (E) alone did not change the activity but it potentiated the stimulation of AA by progestin. Biphasic regulation of AA by progestin was noted in both time- and dose-dependent manners. Endometrial AA was stimulated by MPA and reached the maximum rate between 2-5 days of incubation with subsequent decline of AA in prolonged culture. When stromal cells were treated with MPA (0.03 to 30 microM) for 3 days, AA was increased over the control at all the concentrations tested. The maximum was found at doses between 0.1-1 microM. The activities reduced steadily from the maximum stimulation to less than 50% when the concentration of MPA increased from 1-30 microM. In addition, initial treatment of stroma cells with MPA (1-3 days) resulted in further increase of activity after progestin withdrawal. The enhancement of the induction of AA by E did not alter the biphasic pattern regulated by progestin alone, i.e. E enhanced both the stimulation and the decay of AA. The time study of the effect of E showed that enhancement of AA required at least 10 h of incubation of E with MPA conditioned cells. The effect of E is dose dependent between 0.04-40 nM and shows the greatest effect in the presence of MPA between 0.01-1 microM. The optimal concentrations of E and progestin that stimulate AA in culture are similar to the plasma concentrations after pregnancy, suggesting that the physiological function of the endometrial aromatase is at the time of decidualization. The effects of antiprogestin, Ru 486, and antiestrogen, tamoxifen (TAM), on AA were studied. Ru 486 or TAM alone did not alter AA. Ru 486 inhibited the MPA stimulated AA in a dose-dependent manner suggesting that the effect of progestin may be mediated through a receptor mechanism. Enhancement, but no inhibitory effect, was observed when cells were treated with TAM + MPA and TAM + MPA + E. The effectiveness of Ru 486 to inhibit the induction of AA in endometrial cells may be of primary importance for contraception.
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829
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Zhang HQ, Liu F, Sun B, Li GH. [Anti-allergic action of glycyrrhizin]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1986; 7:175-7. [PMID: 2946161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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830
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Sun B. [Effects of nifedipine on bronchial hyperreactivity in asthmatics]. ZHONGHUA JIE HE HE HU XI XI JI BING ZA ZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 1986; 9:35-7, 63. [PMID: 3743278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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831
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Han Z, Zhong ZS, Sun B. [Anatomical study of the normal fasciculus of the radial, ulnar and median nerves and their clinical significance]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1986; 24:23-5, 62. [PMID: 3720443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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832
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Sun B, Dalat D. [Endodontic treatment of dens evaginatus (a case report)]. ANKARA UNIVERSITESI DIS HEKIMLIGI FAKULTESI DERGISI = THE JOURNAL OF THE DENTAL FACULTY OF ANKARA UNIVERSITY 1985; 12:707-11. [PMID: 3870197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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833
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Zhang YY, Sun B. [Measurement of bronchial reactivity in asthmatics. I. Use of indices of PC20, TC and R for measuring bronchial reactivity]. ZHONGHUA JIE HE HE HU XI XI JI BING ZA ZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 1985; 8:131-3, 189. [PMID: 3899549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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834
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Zhang YY, Sun B. [Measurement of bronchial reactivity in asthmatics. II. Effects of atropine and metaproterenol on bronchial reactivity in asthmatics]. ZHONGHUA JIE HE HE HU XI XI JI BING ZA ZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 1985; 8:133-5, 189. [PMID: 3899550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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835
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Li LL, Sun B. [Measurement of bronchial reactivity in asthmatics. III. Relation between bronchial reactivity to methacholine and plasma cyclic nucleotide monophosphate in asthmatic subjects]. ZHONGHUA JIE HE HE HU XI XI JI BING ZA ZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 1985; 8:135-7, 189. [PMID: 2994969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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836
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Zaimoğlu L, Sun B. [The effect of acid etching on enamel as seen under scanning electron microscopy]. ANKARA UNIVERSITESI DIS HEKIMLIGI FAKULTESI DERGISI = THE JOURNAL OF THE DENTAL FACULTY OF ANKARA UNIVERSITY 1985; 12:345-58. [PMID: 3915690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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837
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Sun B. [Observation on airway responsiveness following methacholine inhalation]. ZHONGHUA JIE HE HE HU XI XI JI BING ZA ZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 1984; 7:89-91. [PMID: 6489056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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