801
|
Gao L, Mu K. [Relation between emphysema and diaphragmatic fatigue]. Zhonghua Yi Xue Za Zhi 1992; 72:147-50, 190. [PMID: 1319806] [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: 12/26/2022]
Abstract
Emphysematous rats induced by elastase were divided into 5 groups: N (control), P1 (elastase for 3 mo.), P2 (elastase for 4.5 mo.; NS intraperitoneally for 1 mo. after 3.5 mo. elastase); A and C, aminophylline and ginseng preparation were respectively given in the same fashion as P2. The results were: 1. tension and endurance of diaphragm muscle decreased under low frequency stimulation in P2, while those no change in P1. DNA, RNA and ATPase increased, cross-sectional areas and glycogen decreased in P1, while ATPase and RNA reduced with increase of cross-sectional areas in P2; 2. in A, no change in tension, with enhanced endurance; 3. in C, tension increased with no change in endurance; 4. glycogen and cross-sectional areas increased in both A and C; 5. RNA and ATPase increased in C and no change in A.
Collapse
Affiliation(s)
- L Gao
- First Hospital, Beijing Medical University
| | | |
Collapse
|
802
|
Xue YY, Gao L, Ren YT, Chan WC, Hor PH, Chu CW. Transient moment relaxation in high-temperature superconductors. Phys Rev B Condens Matter 1991; 44:12029-12032. [PMID: 9999344 DOI: 10.1103/physrevb.44.12029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
803
|
Abstract
STUDY OBJECTIVE The aim was to examine if there is an effect of fathers' age and of birth order on the occurrence of congenital heart disease. DESIGN This was a hospital based case-referent study including use of birth defects surveillance data. SUBJECTS Subjects were 497 cases of congenital heart disease aged between 3 months and 5 years, born in Beijing and Hebei Province, China; 6222 children without congenital heart disease serve as reference baseline. MEASUREMENTS AND MAIN RESULTS With stratified analysis and logistic regression analyses, congenital heart disease was found to be associated with fathers' age less than 25 years (odds ratio 2.63), independent of mothers' age and of birth order. There was also evidence to show a higher birth order effect on the occurrence of congenital heart disease independent of parental ages. CONCLUSION Higher birth order and fathers aged less than 25 years were both independently associated with some categories of congenital heart disease and with congenital heart disease overall.
Collapse
Affiliation(s)
- S Y Zhan
- Department of Epidemiology, Beijing Medical University, China
| | | | | | | |
Collapse
|
804
|
Abstract
Insulin-like growth factors (IGFs) together with their binding proteins (BPs) are potential regulators of folliculogenesis in mammalian ovary. To identify the various species of IGFBPs present in the ovary, we have undertaken a comprehensive purification scheme using gel filtration, ligand-affinity chromatography, and several steps of reverse phase HPLC to isolate all of the BPs in pig ovarian follicular fluid. Our effort yielded five distinct IGFBPs, and upon analysis, they were found to correspond to the previously identified human and rat IGFBP-2, -3, -4, -5, and -6. IGFBP-1 was not found in the pig ovarian follicular fluid under our experimental procedure. Of the six known classes of IGFBPs, the complete primary structures of the first five have been determined, but not IGFBP-6. Using amino acid sequence information from a tryptic fragment of pig IGFBP-6 to prepare a probe, cDNA clones encoding rat and human IGFBP-6 have been isolated and characterized. The deduced amino acid sequence revealed that rat IGFBP-6 contains 201 amino acids with a calculated mol wt of 21,461, while the human homolog contains 216 amino acids with a calculated mol wt of 22,847. In addition, a distinctive feature of human and rat IGFBP-6 is that they lack, respectively, two and four of the 18 homologous cysteines that are present in all other five IGFBPs. The missing cysteines in IGFBP-6 resulted in the absence of the invariant Gly-Cys-Gly-Cys-Cys sequence in the amino-terminal region of the molecule. Human IGFBP-6 possesses a single Asn-linked glycosylation site near the carboxyl-terminal, whereas no potential Asn-linked glycosylation sites are present in the rat sequence. A single 1.3-kilobase IGFBP-6 mRNA was detected by Northern analysis in all rat tissues examined, including testis, intestine, adrenal, kidney, stomach, spleen, heart, lung, brain, and liver, indicating that this BP is a ubiquitous protein. The chromosome location of the IGFBP-6 gene in human has been determined using polymerase chain reaction on somatic cell hybrid DNAs of human and hamster, and the results showed that it is located on chromosome 12.
Collapse
Affiliation(s)
- S Shimasaki
- Department of Molecular Endocrinology, Whittier Institute for Diabetes and Endocrinology, La Jolla, California 92037
| | | | | | | |
Collapse
|
805
|
Gao L. [Study on the adequate dosage of vitamin A in the prevention and treatment of postburn visceral injury]. Zhonghua Yi Xue Za Zhi 1991; 71:199-201, 14. [PMID: 1650630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In this study, we observed the influence of various doses of vitamin A on the serum and liver vitamin A levels and the effect of prevention and treatment on the injured thymus, spleen, liver and mucosa of the small intestine after 20% BSA III degree burn in the rat. The results showed that not only the serum and liver vitamin A contents were lower in the rats (burned group I) receiving vitamin A 6 micrograms/100 gb. w./d. as compared to the uninjured control, but also the thymus was significantly atrophic, especially with decrease of T-cell. The spleen was swollen, and the corpuscles and karyokinesis of the cell decreased. The nucleoli margination and double-nucleus in hepatocytes were also decreased significantly. The small intestine villi were atrophic and the mucosa became thinner. In the postburn rats receiving vitamin A 25 micrograms/100 gb. w./d. (burned group II), the above-mentioned changes were not different as compared with the uninjured controls. In those receiving vitamin A 50 or 100 micrograms/100 gb. w./d. (burned group II and IV), the effect of prevention and treatment of postburn lesions was not superior to those of group II. So it can be seen that the adequate dosage of supplementation of vitamin A in the postburn rats was about 25 micrograms/100 gb. w./d., i.e. 4 times the normal requirement of the rat.
Collapse
|
806
|
|
807
|
Abstract
Disruption of the development program of myosin gene expression has been reported in chicken muscular dystrophy. In the present report, the relationship between muscular dystrophy and the ability of muscle to respond to an increased work load with a transition in the myosin phenotype has been investigated. Hypertrophy of slow tonic anterior latissimus dorsi (ALD) and fast twitch patagialis (PAT) muscles was induced by overloading for 35 days and myosin expression was analyzed by electrophoresis and immunocytochemistry. Normal and dystrophic chicken ALD muscles have nearly identical proportions of SM-1 and SM-2 isomyosins and both exhibit an age-related repression of the SM-1 isomyosin which is enhanced and accelerated by overloading. Immunocytochemistry with anti-myosin heavy chain (MHC) antibodies demonstrates the appearance of nascent myofibers in overloaded ALD muscles from both normal and dystrophic chickens. A minor fast twitch fiber population is also identified which doubles in number with overloading in normal ALD muscles. There are only half as many fast twitch fibers in control dystrophic ALD muscles and this number does not increase with overloading. In contrast to ALD muscles, the isomyosin profile of normal and dystrophic PAT muscles is quite different. There is significantly more FM-3 and significantly less FM-1 isomyosin in the dystrophic PAT muscle. However, both normal and dystrophic PAT muscles exhibit an overload-induced accumulation of the FM-3 isomyosin. Immunocytochemistry reveals that, unlike the normal PAT muscle, the dystrophic PAT muscle contains a population of myofibers which express slow MHCs. As in the ALD muscle, overload-induced hypertrophy is associated with a repression of the SM-1 MHC in these fibers. Nascent myofiber formation does not occur in either normal or dystrophic overloaded PAT muscles.
Collapse
Affiliation(s)
- J M Kennedy
- Department of Physiology and Biophysics, University of Illinois, Chicago 60680
| | | | | |
Collapse
|
808
|
Meng RL, Kinalidis C, Sun YY, Gao L, Tao YK, Hor PH, Chu CW. Manufacture of bulk superconducting YBa2Cu3O7-δ by a continuous process. Nature 1990. [DOI: 10.1038/345326a0] [Citation(s) in RCA: 105] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
809
|
Abstract
Interleukin-2 has been reported to enhance the immune response in diseases characterised by defective cell mediated immunity. The effect of exogenous recombinant interleukin-2 was studied on the proliferative and cytotoxic responses of peripheral blood mononuclear cells from 39 patients with sarcoidosis and 14 healthy control subjects. The proliferative response to purified protein derivative was smaller in patients than in control subjects (p less than 0.001) whereas the response to 80 U interleukin-2 alone and to purified protein derivative and interleukin-2 did not differ significantly between the two groups. In addition, in eight patients but no control subjects tritiated thymidine incorporation induced by the combination of purified protein derivative and interleukin-2 was more than twice the sum of that induced by purified protein derivative and interleukin separately. Cytotoxic activity occurring spontaneously and induced by purified protein derivative and interleukin-2 in blood mononuclear cells was significantly less for patients with sarcoidosis than for control subjects (p less than 0.05 spontaneous, less than 0.001 purified protein derivative induced, less than 0.02 interleukin induced). Synergism between antigen and interleukin did not occur with respect to the cytotoxic response in either patients or controls. Defective interleukin-2 production may contribute to, but does not entirely explain, the functional abnormalities of peripheral blood lymphocytes from patients with sarcoidosis.
Collapse
Affiliation(s)
- D J Lyons
- Division of Immunological Medicine, Clinical Research Centre, Harrow, London
| | | | | | | |
Collapse
|
810
|
|
811
|
Gao L. [Proper use of ventilators]. Zhonghua Jie He He Hu Xi Za Zhi 1988; 11:85-8, 127. [PMID: 3197178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
812
|
Gao L, Huang ZJ, Meng RL, Hor PH, Bechtold J, Sun YY, Chu CW, Sheng ZZ, Hermann AM. Bulk superconductivity in Tl2CaBa2Cu2O8+δ up to 120 K. Nature 1988. [DOI: 10.1038/332623a0] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
813
|
Hazen RM, Prewitt CT, Angel RJ, Ross NL, Finger LW, Hadidiacos CG, Veblen DR, Heaney PJ, Hor PH, Meng RL, Sun YY, Wang YQ, Xue YY, Huang ZJ, Gao L, Bechtold J, Chu CW. Superconductivity in the high-Tc Bi-Ca-Sr-Cu-O system: Phase identification. Phys Rev Lett 1988; 60:1174-1177. [PMID: 10037960 DOI: 10.1103/physrevlett.60.1174] [Citation(s) in RCA: 101] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
814
|
Chu CW, Bechtold J, Gao L, Hor PH, Huang ZJ, Meng RL, Sun YY, Wang YQ, Xue YY. Superconductivity up to 114 K in the Bi-Al-Ca-Sr-Cu-O compound system without rare-earth elements. Phys Rev Lett 1988; 60:941-943. [PMID: 10037896 DOI: 10.1103/physrevlett.60.941] [Citation(s) in RCA: 83] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
815
|
Xiao JD, Zhu TB, Du JY, Gao L. Preparation of an artificial bone containing collagen-hydroxylapatite (CHA) and its osteoinduction experiment. J Tongji Med Univ 1987; 7:214-8, 232. [PMID: 3448250 DOI: 10.1007/bf02888446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
816
|
Gao L. [Effect of tongxia capsule on GI function of postoperative patients with appendicitis and therapeutic effect on acute abdomen]. Zhong Xi Yi Jie He Za Zhi 1987; 7:539-40, 517. [PMID: 3436025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
817
|
Hor PH, Meng RL, Wang YQ, Gao L, Huang ZJ, Bechtold J, Forster K, Chu CW. Superconductivity above 90 K in the square-planar compound system ABa2Cu3O6+x with A=Y, La, Nd, Sm, Eu, Gd, Ho, Er and Lu. Phys Rev Lett 1987; 58:1891-1894. [PMID: 10034565 DOI: 10.1103/physrevlett.58.1891] [Citation(s) in RCA: 185] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
818
|
Wu MK, Ashburn JR, Torng CJ, Hor PH, Meng RL, Gao L, Huang ZJ, Wang YQ, Chu CW. Superconductivity at 93 K in a new mixed-phase Yb-Ba-Cu-O compound system at ambient pressure. Phys Rev Lett 1987; 58:908-910. [PMID: 10035069 DOI: 10.1103/physrevlett.58.908] [Citation(s) in RCA: 1259] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
819
|
Hor PH, Gao L, Meng RL, Huang ZJ, Wang YQ, Forster K, Vassilious J, Chu CW, Wu MK, Ashburn JR, Torng CJ. High-pressure study of the new Yb-Ba-Cu-O superconducting compound system. Phys Rev Lett 1987; 58:911-912. [PMID: 10035070 DOI: 10.1103/physrevlett.58.911] [Citation(s) in RCA: 86] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
820
|
Chu CW, Hor PH, Meng RL, Gao L, Huang ZJ, Wang AY. Evidence for superconductivity above 40 K in the La-Ba-Cu-O compound system. Phys Rev Lett 1987; 58:405-407. [PMID: 10034925 DOI: 10.1103/physrevlett.58.405] [Citation(s) in RCA: 365] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
821
|
Malkovský M, Loveland B, North M, Asherson GL, Gao L, Ward P, Fiers W. Recombinant interleukin-2 directly augments the cytotoxicity of human monocytes. Nature 1987; 325:262-5. [PMID: 3100957 DOI: 10.1038/325262a0] [Citation(s) in RCA: 228] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Interleukin-2 (IL-2), originally described as a growth factor required for sustained proliferation of T cells in vitro is a glycoprotein hormone of known structure which appears to be important for the generation of immune responses in vivo. As well as T lymphocytes, B lymphocytes and large granular lymphocytes with natural killer activity (NK cells) can also respond to IL-2. The action of IL-2 seemed to be limited specifically to lymphocytes, however, and the term 'T-lymphocytotrophic hormone' was used. Here we provide evidence that human monocytes display a substantially increased cytotoxic activity as a direct and rapid response to human recombinant IL-2 but not to human recombinant glycosylated interferon-gamma (IFN-gamma) or lipopolysaccharide. Our results reveal a previously unknown function of IL-2 and suggest its possible involvement in monocyte-T cell interactions.
Collapse
|
822
|
Abstract
Systematic mapping of respiration-related units (RRUs) in the region of the nucleus tractus solitarius (NTS) was performed on rabbits anesthetized with urethane. Of 523 RRUs 295 (56%) were inspiratory (I), 130 (25%) expiratory (E) and 98 (19%) phase-spanning (PS). Such a large number of E and PS RRUs in NTS have not been reported in the cat. Six out of 16 I RRUs 6 of 13 E RRUs, and 1 of 3 PS RRUs had projections to contralateral cervical spinal cord. The 'no I inflation' test was conducted on 76 I and 38 E RRUs, of which 29 I RRUs were identified as I alpha and 31 as I beta. Thirteen E RRUs were inhibited and 6 facilitated by preceding lung inflation. Almost all types of respiratory neurons so far reported from different nuclei of cat's brainstem have been located in the NTS region of the rabbit.
Collapse
|
823
|
Malkovský M, Jíra M, Gao L, Loveland B, Malkovska V, Dalgleish AG, Webster AD. Reduced expression of interleukin-2 receptors in hypogammaglobulinaemia: a possible cause of higher cancer incidence. Lancet 1986; 1:1442-3. [PMID: 2872543 DOI: 10.1016/s0140-6736(86)91586-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
824
|
Gao L. [Clinical significance of the pharmacokinetic determination of theophylline]. Zhonghua Yi Xue Za Zhi 1986; 66:137-40, 188. [PMID: 3094865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
825
|
|
826
|
Gao L. [Studies on the toxicity of rancid biscuits]. Zhonghua Yu Fang Yi Xue Za Zhi 1982; 16:293-7. [PMID: 7151591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
827
|
Gao L. [A survey of research on Yin Xu and Yang Xu]. Zhong Xi Yi Jie He Za Zhi 1981; 1:118-21. [PMID: 6219777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
828
|
Gao L, Jiang YC. [The relationship between different types of diet and blood cholesterol (author's transl)]. Zhonghua Yu Fang Yi Xue Za Zhi 1981; 15:38-40. [PMID: 7307802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|