5351
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Wang CB, Ge AP, Song WY, Li L, Li YQ, Xu JH. The jaundice-suppressing effect of blood-cooling, circulation-invigorating, viscera-dredging and cholagogic Chinese herbs in the treatment of hepatitis. J TRADIT CHIN MED 1987; 7:248-50. [PMID: 3449705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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5352
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Li L, Lipert RJ, Park H, Chupka WA, Colson SD. Dynamics and spectroscopic manifestations of two‐photon bound–bound absorption through a repulsive intermediate state. J Chem Phys 1987. [DOI: 10.1063/1.453416] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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5353
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Chen ML, Xia M, Wang DG, Du ZL, Li L, Lan TH. [Study of specific HCG binding to Pseudomonas maltophilia]. HUA XI YI KE DA XUE XUE BAO = JOURNAL OF WEST CHINA UNIVERSITY OF MEDICAL SCIENCES = HUAXI YIKE DAXUE XUEBAO 1987; 18:324-6. [PMID: 3449421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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5354
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Chu RY, LU JH, LI MC, Chen RJ, Li L, Fu TS, Cui JX, Zhu BQ, Lu ZZ. Pulsed Nd:YAG laser irradiation injury threshold of Chinese retinas. Chin Med J (Engl) 1987; 100:855-8. [PMID: 3130223] [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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5355
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Li L. [Stage I and II carcinoma of the uterine cervix: histologic variables associated with lymph node metastasis and survival]. ZHONGHUA FU CHAN KE ZA ZHI 1987; 22:347-9, 375. [PMID: 3447836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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5356
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Li L, Lubman DM. Ultraviolet-visible absorption spectra of biological molecules in the gas phase using pulsed laser-induced volatilization enhancement in a diode array spectrophotometer. Anal Chem 1987; 59:2538-41. [PMID: 3688442 DOI: 10.1021/ac00147a022] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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5357
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Liu LY, Hong WJ, Hou YJ, Yao ZH, Wu AR, Li L. [Treatment of 63 advanced ovarian carcinomas]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 1987; 9:375-8. [PMID: 3452529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
62 patients with advanced epithelial ovarian adenocarcinoma (37 stage III, 4 stage IV and 22 recurrent lesions) were treated in our hospital from 1977 to 1981, 38 patients underwent surgery. 25 with inoperable tumor initially received preoperative chemotherapy (VCF protocol: vincristine + cyclophosphamide + fluorouracil chiefly) followed by surgery. The response rate of chemotherapy was 48%. Apart from 1 progressive tumor during chemotherapy, 24/25 were explored. There were 10/24 with residual tumor less than 2 cm in diameter, giving a resection rate of 41.7% as compared with the resection rate of 42.1% (16/38) in the operation group. It is shown that the preoperative chemotherapy improves the resection rate. 44 patients received postoperative chemotherapy and 12, radiotherapy combined with chemotherapy or radiotherapy only. The overall 2.3 and 5 year survival rates of these 63 patients were 39.7%, 31.7% and 23.8%. The 2 and 3 year survivals were 41.9% and 32.3% in 31 patients with postoperative chemotherapy using VCF protocol. The results indicate that VCF protocol is effective for advanced epithelial ovarian cancer, especially patients with residual tumor less than 2 cm in size. Chemotherapy with more than 3 courses has better effect.
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5358
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Lei YD, Chen ML, Li L, Wang DG, Chen ZP, Qiu MJ, Lan TH. [Biologic activity evaluation of 125I-labeled human chorionic gonadotropin]. HUA XI YI KE DA XUE XUE BAO = JOURNAL OF WEST CHINA UNIVERSITY OF MEDICAL SCIENCES = HUAXI YIKE DAXUE XUEBAO 1987; 18:199-202. [PMID: 3679166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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5359
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Li L. [An attempt at preserving facial nerve function in total removal of the large-type acoustic neuroma by microsurgery]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1987; 25:430-2, 447. [PMID: 3677951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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5360
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Tao PZ, Li L, Jiang XJ, Zhang GY. [Purification of deoxythymidine kinase induced by HSV-I and its specification in an in vitro assay system]. ZHONGGUO YI XUE KE XUE YUAN XUE BAO. ACTA ACADEMIAE MEDICINAE SINICAE 1987; 9:207-11. [PMID: 2820602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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5361
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Li L. [Pathogenesis of psoriasis]. ZHONG XI YI JIE HE ZA ZHI = CHINESE JOURNAL OF MODERN DEVELOPMENTS IN TRADITIONAL MEDICINE 1987; 7:374-6. [PMID: 3690762] [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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5362
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Li L. [Anti-inflammatory effect of a tong guan decoction on chemical salpingitis in the rabbit]. ZHONG XI YI JIE HE ZA ZHI = CHINESE JOURNAL OF MODERN DEVELOPMENTS IN TRADITIONAL MEDICINE 1987; 7:293-4, 262. [PMID: 3690750] [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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5363
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Zhang HM, Li YP, Song LH, Yu XL, Liu NH, Kong XE, Li L, Zhai YL. Efficacy of a polyvalent protein-polysaccharide dysentery oral vaccine. Chin Med J (Engl) 1987; 100:425-8. [PMID: 3115716] [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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5364
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Liu BW, Zhang LH, Liu WZ, Zhang RJ, Lei YD, Li L. [Radioimmunoassay of human serum apolipoprotein CIII]. HUA XI YI KE DA XUE XUE BAO = JOURNAL OF WEST CHINA UNIVERSITY OF MEDICAL SCIENCES = HUAXI YIKE DAXUE XUEBAO 1987; 18:1-5. [PMID: 3623515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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5365
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Matsuoka A, Iwaasa H, Takiguchi K, Arakawa N, Li L, Takagi T, Shikama K. Stability properties of oxymyoglobin from chicken gizzard smooth muscle. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. B, COMPARATIVE BIOCHEMISTRY 1987; 88:783-9. [PMID: 3427916 DOI: 10.1016/0305-0491(87)90244-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
1. Oxymyoglobin (MbO2) was isolated directly from the smooth muscle of chicken gizzard and was examined for its spectral and stability properties. 2. When compared with sperm whale MbO2 as a reference, chicken gizzard MbO2 was found to be much more susceptible to autoxidation. Its pH-dependence was therefore analyzed in terms of an "acid-catalyzed three-state model". 3. The complete amino acid sequence of the myoglobin was also determined. Its hydropathy profile revealed that the region corresponding to the distal side of the heme iron appears to be less hydrophobic.
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5366
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Li L, Jiang ZM, Fei LM. [Pyrogen-induced fever in surgical patients]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1987; 25:34-7, 62. [PMID: 3109857] [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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5367
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Abstract
The frequencies of chromosomal aberrations and sister-chromatid exchanges (SCEs) in the peripheral blood lymphocytes of 360 persons, 180 workers in a petrochemical corporation and 180 appropriate controls, were studied. A significant increase in chromosomal aberrations and SCEs, compared to the control group, was observed in two sewage-treatment workshop workers; however, there were no significant differences between petrochemical workers from four workshops and a control group.
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5368
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Dai FB, Qiao CZ, Li L. [Determination of indigo and indirubin in qingdai by HPLC]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1986; 21:868-71. [PMID: 3591324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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5369
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5370
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Pichler G, Bahns J, Sando K, Stwalley W, Konowalow D, Li L, Field R, Müller W. Electronic assignments of the violet bands of sodium. Chem Phys Lett 1986. [DOI: 10.1016/0009-2614(86)80372-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5371
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Zhang CG, Li L, Jiang XH. [Total transthoracic extirpation of intraspinal neurinomas expanding into the postmediastinum]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1986; 24:496-7, 511. [PMID: 3816474] [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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5372
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Li L. [The study of transmission of HBV in utero]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 1986; 20:132-3. [PMID: 3769669] [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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5373
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Gould PR, Li L, Henderson DW, Barter RA, Papadimitriou JM. Cilia and ciliogenesis in endometrial adenocarcinomas. An ultrastructural analysis. Arch Pathol Lab Med 1986; 110:326-30. [PMID: 3754121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cilia in neoplastic cells were observed by electron microscopy in specimens from five of six consecutive patients with endometrial adenocarcinoma. Most cilia showed a range of defects, from misalignment and displacement of individual doublets to the absence of up to three peripheral doublets, the pattern varying from 9+2 to 6+2; the central pair of microtubules also was frequently missing. Single peripheral microtubules and displacement of the dynein arms were also observed. The high proportion of cilial defects in neoplastic cells (72%) compared with those in normal endometrium (26%), together with a broader spectrum of cilial abnormalities, suggests that the neoplastic state increases the number and range of cilial lesions.
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5374
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Li L. [Using psychological knowledge in the training of nurses]. ZHONGHUA HU LI ZA ZHI = CHINESE JOURNAL OF NURSING 1986; 21:66-7. [PMID: 3639777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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5375
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Li HJ, Liu DX, Li L, Liu ZG, Lo SL, Zhao J, Han XP, Yu WZ. A note about the incidence and origin of Hb D-Punjab in Xinjiang, People's Republic of China. Hemoglobin 1986; 10:667-71. [PMID: 3557998 DOI: 10.3109/03630268609036571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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5376
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Li HJ, Liu DX, Li L, Liu ZG, Qing F, Lo SL, Kang QS, Chen J, Chang YQ, Xie DS. Hemoglobinopathies in Xinjiang. Hemoglobin 1986; 10:435-49. [PMID: 3744874 DOI: 10.3109/03630268608996875] [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: 01/07/2023]
Abstract
The present report summarizes the results of a search for hemoglobinopathies in 142,171 persons in Xinjiang, the results of structural analyses of abnormal hemoglobins in 134 families, and the incidence and distribution of abnormal hemoglobins and the thalassemias in eight ethnic groups or nationalities.
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5377
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Zhang CG, Jiang XH, Li L. Cerebellar schistosomiasis (report of 11 cases). ACTA ACADEMIAE MEDICINAE WUHAN = WU-HAN I HSUEH YUAN HSUEH PAO 1985; 5:247-51. [PMID: 3939609 DOI: 10.1007/bf02860945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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5378
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Liang SW, Chen ZY, Ni JX, Luo CX, Liu MM, Zhang LR, Li L, Chen YB, Xie Y, Xue ZN. [An animal (goat) model for open heart surgery]. SICHUAN YI XUE YUAN XUE BAO = ACTA ACADEMIAE MEDICINAE SICHUAN 1985; 16:267-9. [PMID: 3837383] [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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5379
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Wang CX, Ye DN, Bao L, Yan RH, Dai BM, Lei YD, Li L. [125I-labelled monoclonal antibody in the detection of leptospiral antigens in tissues of guinea pig]. SICHUAN YI XUE YUAN XUE BAO = ACTA ACADEMIAE MEDICINAE SICHUAN 1985; 16:185-7. [PMID: 3837369] [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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5380
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Li L, Porter RN, Johnson PM. Li, Porter, and Johnson respond. PHYSICAL REVIEW LETTERS 1985; 54:367. [PMID: 10031495 DOI: 10.1103/physrevlett.54.367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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5381
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5382
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Li L, Lu SF, Jiang XH. Clinical analysis of 80 cases of post-traumatic chronic subdural hematoma. ACTA ACADEMIAE MEDICINAE WUHAN = WU-HAN I HSUEH YUAN HSUEH PAO 1984; 4:252-6. [PMID: 6527849 DOI: 10.1007/bf02857175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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5383
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Li FS, Wei FQ, Bai QF, Guan JY, Duan YJ, Zou LM, Zhao YH, Li L, Jin Q. [Metabolic changes in phospholipids in animals fed with low selenium]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1984; 5:269-73. [PMID: 6240905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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5384
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Li FS, Wei FQ, Bai QF, Guan JY, Duan YJ, Zou LM, Zhao YH, Li L, Jin Q. [Metabolic changes of phospholipids in animals fed with low selenium]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1984; 5:269-73. [PMID: 6242222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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5385
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Sun BC, Li RD, Zhang XL, Zou LH, Li L, Yan S. Picture test cards for vision of the Chinese preschool children. Chin Med J (Engl) 1984; 97:791-4. [PMID: 6443269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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5386
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Chen GB, Zhao YD, Xiao HR, Li L, Sun DJ, Gao YH, Li QB, Chen HH. A study of acupuncture anesthesia in surgery on the anterior cranial fossa. J TRADIT CHIN MED 1984; 4:189-96. [PMID: 6570149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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5387
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Lecomte C, Coppens P, Blessing RH, Li L. X-ray diffraction studies of the charge-density in porphyrins: mesotetraphenylporphinatobis(tetrahydrofuran)ironII. Acta Crystallogr A 1984. [DOI: 10.1107/s0108767384094824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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5388
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Coppens P, Lecomte C, Tanaka K, Li L. Electron-density mapping in hemoglobin model systems: comparison charge densities in several iron porphyrins and phthalocyanines. Acta Crystallogr A 1984. [DOI: 10.1107/s010876738409512x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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5389
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Li L. [Meningioma of the posterior cranial fossa]. ZHONGHUA SHEN JING JING SHEN KE ZA ZHI = CHINESE JOURNAL OF NEUROLOGY AND PSYCHIATRY 1984; 17:196-200. [PMID: 6536446] [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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5390
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Ling SG, Bao ZQ, Li L, Wang GY. [Radioimmunoassay for choline acetyltransferase]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1984; 5:73-5. [PMID: 6235715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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5391
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Li HJ, Liu DX, Liu ZG, Li P, Li L, Chen J, Hou SZ. A new fast-moving hemoglobin variant, Hb J-Tashikuergan alpha 19(AB1) Ala----Glu. Hemoglobin 1984; 8:391-5. [PMID: 6548207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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5392
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Li L. [Pathologic features of carcinoma of the gastric cardia]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 1984; 6:37-40. [PMID: 6745048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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5393
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Saunders RH, Hickler RB, Hall SA, Hitzhusen JC, Ingraham MR, Li L. A geriatric special-care unit: experience in a university hospital. J Am Geriatr Soc 1983; 31:685-93. [PMID: 6630828 DOI: 10.1111/j.1532-5415.1983.tb04155.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Responding to a perceived need for specialized care for the acutely ill elderly, a 14-bed geriatric special-care unit was established in the University of Massachusetts Hospital in January 1980. Patients were selected for admission after assessment of their potential to benefit from restorative care. Most patients were admitted from the emergency room or outpatient clinics or were scheduled admissions; a few were in-hospital transfers. This report deals with a retrospective analysis of the first 514 admissions (431 patients) to the unit. Admissions by major service were: Medicine, 64 per cent; Surgery, 14 per cent; Neurology, 10 per cent; Orthopedics, 7 per cent; and other, 5 per cent. Approximately 64 per cent of patients were between the ages of 70 and 84. The overall average length of stay per admission was 11.5 days. Mortality rate of patients undergoing surgery (n = 125) was 4 per cent. The percentage of admissions that were discharged home was 78.7 per cent. Only 7.3 per cent of admissions were discharged to a nursing home, when those that were admitted to the unit from a nursing home are excluded. The authors conclude that a special nursing unit for acutely ill elderly patients may serve several purposes in a university hospital: overall patient care may be improved; length of hospital stay may be shortened; and medical students, housestaff, and attending physicians may gain an opportunity to learn the fundamentals of geriatric medicine as demonstrated by the staff of the unit.
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5394
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Li L. [Microsurgical removal of acoustic neurinoma]. ZHONGHUA SHEN JING JING SHEN KE ZA ZHI = CHINESE JOURNAL OF NEUROLOGY AND PSYCHIATRY 1983; 16:257-9. [PMID: 6675944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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5395
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Li L, Dong D. Nephrology in China. Historical sketch and present status. Singapore Med J 1983; 24:186-8. [PMID: 6648546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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5396
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Bei SZ, Li YA, Li L, Pan ZY, Wang Q, Yan QY. Electron microscopy of DNA molecules from blastoderm nuclei and yolk granules beneath blastoderm of fertilized and unincubated chicken eggs. SCIENTIA SINICA. SERIES B, CHEMICAL, BIOLOGICAL, AGRICULTURAL, MEDICAL & EARTH SCIENCES 1983; 26:818-22. [PMID: 6684789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The DNA molecules isolated from the blastoderm nuclei and yolk granules beneath the blastoderm of fertilized and unincubated chicken eggs were observed under electron microscope, using the DNA sample of calf thymus as control. The results showed that both nuclear and yolk DNAs are linear, and their molecules are very similar to those of thymus DNA in shape. Since chromatin was first prepared from blastoderm nuclei and yolk granules respectively and then DNA was isolated from both of chromatin samples, it could be concluded that yolk granules possess both DNA chromatin as nuclei do.
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5397
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Bei SZ, Li YA, Li L, Pan ZY, Yan QY, Wang Q. Chromatin and DNA of yolk granules beneath "blastoderm region" of unfertilized chicken egg. SCIENTIA SINICA. SERIES B, CHEMICAL, BIOLOGICAL, AGRICULTURAL, MEDICAL & EARTH SCIENCES 1983; 26:823-7. [PMID: 6684790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Electron microscopic study shows that the chromatin structure of yolk granules beneath the "blastoderm region" of the unfertilized chicken egg is identical to that of yolk granules beneath the blastoderm of the fertilized and unincubated chicken egg, and both chromatin structures are very similar to those of blastoderm nuclei. Furthermore the molecular shapes of DNA of both yolk granules are also very similar to those of the blastoderm nuclei, being all linear. Based on these observations, we have come to the conclusion that chromatin and DNA widely exist in the yolk when yolk granules have reached their development-specified competence. The results indicate further that the yolk granules are capable of synthesizing DNA, and provide the condition for the interaction of DNA with histones to form chromatin through self-organization.
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5398
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Bei SZ, Li YA, Li L, Pan ZY, Li GX, Lan BX, Bao YH, Yan QY, Wang Q. Electron microscopic studies on the chromatin of blastoderm nuclei and yolk granules beneath blastoderm of fertilized and unincubated chicken eggs. SCIENTIA SINICA. SERIES B, CHEMICAL, BIOLOGICAL, AGRICULTURAL, MEDICAL & EARTH SCIENCES 1983; 26:708-15. [PMID: 6685342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Chromatin prepared both from the yolk granules beneath the blastoderm and from the nuclei of the blastoderm cells of fertilized and unincubated chicken eggs was examined under electron microscope and its structure was compared. The results indicate that the above two kinds of chromatin fibers seem to have no apparent difference in structural relation and diameter. The electron microscopic appearances of the basic structures of both kinds of chromatin are all "beads-on-a-string"-shaped filaments. After the digestion of chromatin from both raw materials with DNase I, the connecting strings of chromatin fibers were cut off, only the scattered beads could be observed under electron microscope. The diameter of the scattered beads is equal to that of the beads on the chromatin fibers, and most of them are 150 A in diameter.
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5399
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Li L, Pan GL. [Histogenesis of carcinoma of the gastric cardia]. ZHONGGUO YI XUE KE XUE YUAN XUE BAO. ACTA ACADEMIAE MEDICINAE SINICAE 1983; 5:169-72. [PMID: 6226413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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5400
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