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van Rhee AM, Siddiqi SM, Melman N, Shi D, Padgett WL, Daly JW, Jacobson KA. Tetrahydrobenzothiophenone derivatives as a novel class of adenosine receptor antagonists. J Med Chem 1996; 39:398-406. [PMID: 8558508 DOI: 10.1021/jm9504823] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A novel class of non-nitrogen-containing heterocycles, the tetrahydrobenzothiophenones, was found to bind to adenosine receptors as antagonists in the micromolar range. Affinity was determined in radioligand-binding assays at rat brain A1 and A2a receptors. A structure-activity analysis indicated that a 3-thioether group is favored and affinity at A2a, but not at A1, receptors is highly dependent on this thioether substituent. A carboxylic acid-derived substituent is required at the 1-position of the thiophene ring, with esters being more potent in binding at A1 receptors than the corresponding carboxyl hydrazide or carboxylic acid derivatives. The methyl (15) and ethyl (16) esters are about equipotent at A1 but not at A2a receptors. A 4-keto group on the saturated ring is favored for receptor affinity. Dimethyl substitution at the 6-position of the saturated ring is allowed. One of the most potent derivatives was the nonselective compound ethyl 3-(benzylthio)-4-oxo-4,5,6,7-tetrahydrobenzo[c] thiophene-1-carboxylate (BTH4, 7; Figure 1), which antagonized adenosine agonist-induced inhibition of adenylyl cyclase in rat adipocyte membranes with a KB value of 1.62 +/- 0.73 microM and adenosine agonist-induced stimulation of adenylyl cyclase in pheochromocytoma cell membranes with a KB value of 9.19 +/- 0.98 microM. Displacement of radioligand binding by BTH4 (7) at cloned human A3 receptors was negligible but one slightly A3 selective compound (11, 3.9-fold over A1 and >7.5-fold over A2a) was found. A 1-methylpropyl thioether (17) was 29-fold selective for A1 and A2a receptors. BTH4 (7) alone, at 10 mg/kg, stimulated locomotor activity in mice but paradoxically acted, under certain circumstances, synergistically with an A1 selective agonist to depress locomotor activity. A pharmacophore model relating structural features of xanthine and non-xanthine adenosine antagonists to BTH4 (7) suggests a high degree of similarity in electrostatic surfaces, assuming that the thiophene ring superimposes the region of the uracil ring of xanthines.
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Hirata H, Hibasami H, Hineno T, Shi D, Morita A, Inada H, Fujisawa K, Nakashima K, Ogihara Y. Role of ornithine decarboxylase in proliferation of Schwann cells during Wallerian degeneration and its enhancement by nerve expansion. Muscle Nerve 1995; 18:1341-3. [PMID: 7565936 DOI: 10.1002/mus.880181121] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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203
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Chen S, Huang S, Shi D. Orthographic double-beam holographic interferometry for limited-view optical tomography. APPLIED OPTICS 1995; 34:6282-6286. [PMID: 21060472 DOI: 10.1364/ao.34.006282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A simultaneous algebraic reconstruction technique (SART) that was first applied to limited-view optical tomography reconstruction of a three-dimensional asymmetric refractive-index field or a temperature distribution is presented and numerically simulated. Within two orthographic-view directions and limited view ranges, the reconstruction speed and accuracy of the SART are adequate. A new orthographic double-beam holographic-interferometric system from which multidirectional interferometric data can be obtained is first built. An asymmetric heat air-flow field is experimentally investigated by the use of orthographic double-beam holographic interferometry with double exposures. The temperatures reconstructed with the SART are consistent with those measured with a thermocouple.
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204
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Von Lubitz DK, Kim J, Beenhakker M, Carter MF, Lin RC, Meshulam Y, Daly JW, Shi D, Zhou LM, Jacobson KA. Chronic NMDA receptor stimulation: therapeutic implications of its effect on adenosine A1 receptors. Eur J Pharmacol 1995; 283:185-92. [PMID: 7498308 PMCID: PMC3427754 DOI: 10.1016/0014-2999(95)00338-l] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
It is known that stimulation of adenosine A1 receptors has a modulatory effect on the excitability of postsynaptic NMDA receptors. Conversely, acute stimulation of NMDA receptors results in release of adenosine via calcium-independent mechanisms. These findings indicate a close functional relationship between these receptors. It is, therefore, possible that chronic, low level stimulation of the NMDA receptor may have a negative impact on these modulatory processes. To investigate this possibility, we have subjected C57BL mice either to an acute injection of a N6-cyclopentyladenosine (CPA, 0.01 mg/kg) or deoxycoformycin (1 mg/kg) followed by a convulsant dose of N-methyl-D-aspartate (NMDA) (60 mg/kg) or to chronic, low level (20 mg/kg i.p. daily) exposure to NMDA for 8 weeks. One day after the last injection of NMDA, animals were injected either with a convulsant dose of NMDA alone, or with either CPA at 0.001 or 0.01 mg/kg, or with 1 mg/kg deoxycoformycin followed 15 min later by 60 mg/kg NMDA. Neither CPA nor deoxycoformycin were protective when NMDA was given acutely at 60 mg/kg. Chronic treatment with NMDA alone or chronic administration of NMDA followed by 0.001 mg/kg CPA had no significant effect on mortality following a convulsant dose of NMDA. However, when the chronic regimen of NMDA was followed by either 0.01 mg/kg CPA or 1 mg/kg deoxycoformycin, mortality was reduced to 10% (CPA), or eliminated completely (deoxycoformycin). Moreover, combination of chronic NMDA treatment with either CPA (both doses) or deoxycoformycin produced a significant improvement in other measures, i.e., seizure onset, intensity of neurological impairment, and extension of time to death.(ABSTRACT TRUNCATED AT 250 WORDS)
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205
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Tang J, Shi D, Gu Y. [Flexor tendon repair: timing of surgery and sheath management]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1995; 33:532-5. [PMID: 8731870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Effect of timing of repair and management of sheath on functions of injuried tendons was evaluated in a clinical relevant model using 60 white leghorn chickens. The flexor digitorum profundus (FDP) tendons of the long toes were cut and were repaired at 1, 4, 8, 14 and 20 days after injury. The sheath on the left foot was closed and that on the right excised. The tendon excursion, toe motion, morphology of the sheath and tendon healing were studied 6 weeks after tendon repair. Tendon functions were the best in primary repair, and they got worse as the delay became longer. Repair in the late stage produced significantly worse tendon functions. Sheath closure with remarkable tension worsened tendon healing. We conclude that the optimal timing for tendon repair is at the primary stage. Delayed tendon repair can be performed within 3 weeks to one month after injury, but the repair is preferably done in initial several days of delay. Direct sheath closure is not advocated in tendon repair in the delayed period.
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206
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Shi D. The first report of echinococcus multilocularis in domestic dogs in Zhang County of Gansu Province. Chin Med J (Engl) 1995; 108:615-7. [PMID: 7587495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
In Zhang County of Gansu Province, 13 human cases of alveolar hydatid disease were reported up to 1990. However, the causative organism has not yet been described in animal hosts. In July 1990, postmortem examinations were made on 59 dogs (Canis familiaris) from the Caotan region of Zhang County. Of them, 6 were found to be infected with the adult worms of Echinococcus multilocularis. The morphological characteristics of the adult were compared in detail with those reported from different parts of China. Our adult specimens were closely resembling those of E. multilocularis reported from Ningxia. The role of domestic dogs in the epidemiology of alveolar echinococcosis in Zhang County was discussed.
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207
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Tang R, Dai K, Chen Y, Shi D. Modified distal osteotomy of shortening the first metatarsal and for treatment of hallux valgus. Chin Med J (Engl) 1995; 108:512-5. [PMID: 7555269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
We evaluated the results of distal osteotomy of shortening the first metatarsal head with internal fixation of shape memory metal compression staple for hallux valgus in 26 feet of 17 women with a mean age of 41.0 years (30-65 years). The time for return to light work averaged 18.2 days, and to full work and normal walking 40.3 days after the operation. 16 patients (25 feet) had complete pain relief. Only in one foot, the pain was transferred under the 2nd metatarsal head. The appearance of the feet was markedly improved and the width of the forefeet was decreased by a mean of 0.92 cm after the operation. All of the patients were satisfied with the appearance of their feet. Radiographic analysis of feet showed that all osteotomies united, and the average angle of hallux valgus was improved from 30.1 degrees to 16.0 degrees, with the mean intermetatarsal angle of 11.2 degrees-6.5 degrees. No external fixation of plaster splintage was used and the distal fragment during healing of the osteotomy was stable. The time of bone healing was shortened and patients were allowed to bear weight at early stage.
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208
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Shi D, Chen S, Wang R, Xiao X. Automatic image-processing system and fast-reconstruction technique for holographic-interferometry computer tomography. APPLIED OPTICS 1995; 34:3064-3068. [PMID: 21052461 DOI: 10.1364/ao.34.003064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A fast automatic processing system for holographic interferograms for use in optical tomography is discussed. A hot air flow field above a combustor with a rectangular opening is investigated by a fast reconstruction technique (the simultaneous algebraic reconstruction technique), and the temperature distribution of a section in the air flow field is reconstructed. The reconstructed temperatures are consistent with the temperatures measured by a thermocouple.
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209
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Wang Y, Shi D, Shen Z. [A study of proliferative activity of soft tissue sarcomas]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 1995; 17:183-6. [PMID: 7656821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Proliferative activity of soft tissue sarcomas (STS) in 31 cases was examined by histologic grading, mitotic count, DNA analysis by flow cytometry, and immunohistochemical procedures with monoclonal antibody Ki-67. Aneuploid was found in 12 of 16 cases (75.0%) with Grade 3, and in 4 of 15 cases (26.7%) with Grade 1,2 (P = 0.0121). Tumors with more than 100 Ki-67 positive cells per 10 high power fields (HPF) had a higher rate of aneuploid (81.3%) than those with less than 100 Ki-67 per 10 HPF (26.7%) (P = 0.0038). There was significant correlation between Grade and DNA index (DI) (r = 0.4901, P = 0.0051), Grade and Ki-67 (r = 0.4636, P = 0.0086), Ki-67 and DI (r = 0.6368, P = 0.0001). The results indicate that DI and reactivity of tumor cells to Ki-67 may reflect proliferative activity and be helpful for clinicians to judge the biological behaviour of tumors more accurately and objectively. Hence, supplementary to the grading of STS, DI and Ki-67 score could be useful as prognostic parameters for clinical invetigation of multimodality therapy for individual patients.
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210
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Shi D, Hsiung HH, Pace RC, Stokes DL. Preparation and analysis of large, flat crystals of Ca(2+)-ATPase for electron crystallography. Biophys J 1995; 68:1152-62. [PMID: 7756535 PMCID: PMC1281838 DOI: 10.1016/s0006-3495(95)80291-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Obtaining large, flat, well ordered crystals represents the key to structure determination by electron crystallography. Multilamellar crystals of Ca(2+)-ATPase are a good candidate for this methodology, and we have optimized methods of crystallization and of preparation for cryoelectron microscopy. In particular, high concentrations of glycerol were found to prevent nucleation and to reduce stacking; thus, by seeding solutions containing 40% glycerol, we obtained thin crystals that were 5-30 microns in diameter and 2-10 unit cells thick. We found that removing vesicles and minimizing concentrations of divalent cations were critical to preparing flat crystals in the frozen-hydrated state. Finally, we developed two methods for determining the number of lamellae composing individual crystals, information that is required for structure determination of this crystal form. The first method, using low magnification images of freeze-dried crystals, is more practical in our case. Nevertheless, the alternative method, involving analysis of Laue zones from electron diffraction patterns of slightly tilted crystals, may be of general use in structure determination from thin, three-dimensional crystals.
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211
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Tang JB, Shi D, Zhou H. Vein conduits for repair of nerves with a prolonged gap or in unfavourable conditions: an analysis of three failed cases. Microsurgery 1995; 16:133-7. [PMID: 7637619 DOI: 10.1002/micr.1920160303] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Clinical failure of vein conduits for repair of four nerves in three cases is reported. Two digital nerves with gaps of 5.0 cm and 5.8 cm, respectively, and two median nerves with gaps of 4.0 cm and 5.0 cm were repaired with vein conduits. The digital nerves were repaired secondarily with insertion of nerve tissue slices. The median nerve lacerations were associated with compound soft tissue injuries and were repaired primarily by interfascicular vein conduits. There was no detectable recovery of sensibility in autonomous areas of these nerves and no sign of recovery of the innervated muscles during follow-up. Re-exploration revealed that the vein conduits used for repair of the median nerves were constricted by surrounding scar tissue and axon regeneration was precluded. The critical length for nerve regeneration in human beings and wound conditions unfavorable to nerve regeneration are discussed. This report suggests that vein conduits are not indicated in nerve gaps over 5.0 cm or in primary repair of nerves with compound injuries.
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212
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Tang JB, Shi D, Gu YQ, Chen JC, Zhou B. Double and multiple looped suture tendon repair. JOURNAL OF HAND SURGERY (EDINBURGH, SCOTLAND) 1994; 19:699-703. [PMID: 7706867 DOI: 10.1016/0266-7681(94)90238-0] [Citation(s) in RCA: 103] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report our experience of using double or multiple looped sutures for primary tenorrhaphy combined with early active mobilization. In 46 patients involving 51 fingers with flexor tendon lacerations, double threads of the looped nylon suture were placed to repair injured FDP or FDS tendons, or three threads of looped nylon suture were made to repair the FDP tendons. Using White's (1956) criteria, the results were good or excellent in 76.5% of fingers. The double and multiple looped sutures are of sufficient strength to sustain early motion, and cause little disturbance in the circulation. Satisfactory function following primary tendon repair can be expected with these new techniques.
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213
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Shi D, Nikodijević O, Jacobson KA, Daly JW. Effects of chronic caffeine on adenosine, dopamine and acetylcholine systems in mice. ARCHIVES INTERNATIONALES DE PHARMACODYNAMIE ET DE THERAPIE 1994; 328:261-87. [PMID: 7625882 PMCID: PMC3432916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Chronic ingestion of caffeine by male NIH Swiss strain mice leads in about 3 days to a significant increase in A1-adenosine, nicotinic and muscarinic receptors, and a significant decrease of beta 1-adrenoceptors in cerebral cortical membranes. Plasma levels of caffeine in the chronically treated mice range from 0.70 to 5.7 micrograms/ml. The changes in receptors reverse after withdrawal of caffeine within 7 days. An increase in nitrendipine binding sites, associated with L-type calcium channels, also occurs within 4 days and has reversed in 7 days after withdrawal. There is no change in the levels of striatal nicotinic receptors of D2-dopamine receptors, nor of [3H]cocaine binding to dopamine uptake sites. Levels of opioid receptors are either increased (delta) or unaltered (mu, kappa). sigma-Receptors are unaltered. Stimulations of striatal adenylate cyclase by forskolin, dopamine and NECA are not significantly affected after chronic caffeine ingestion. The adenosine agonist, NECA, reverses the amphetamine-elicited increases in locomotor activity and partly reverses the cocaine-elicited increases. The NECA dose-response curve is multiphasic (depression, stimulation and then depression) versus amphetamine in control mice, but only depressant versus amphetamine in chronic caffeine mice, while being multiphasic versus cocaine in both control and chronic caffeine mice. NECA reverses the stimulation of locomotor activity elicited by the muscarinic antagonist, scopolamine, and is more effective in the chronic caffeine mice. The behavioral depressant effects of the muscarinic agonist, oxotremorine, are not markedly altered after chronic caffeine ingestion.
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MESH Headings
- Acetylcholine/metabolism
- Adenosine/analogs & derivatives
- Adenosine/pharmacology
- Adenosine-5'-(N-ethylcarboxamide)
- Adenylyl Cyclases/metabolism
- Animals
- Binding, Competitive
- Caffeine/administration & dosage
- Caffeine/blood
- Caffeine/pharmacology
- Calcium Channels/drug effects
- Corpus Striatum/drug effects
- Corpus Striatum/enzymology
- Dose-Response Relationship, Drug
- Drug Interactions
- In Vitro Techniques
- Male
- Mice
- Motor Activity/drug effects
- Nicotine/toxicity
- Nitrendipine/metabolism
- Radioligand Assay
- Receptors, Adrenergic, beta-1/drug effects
- Receptors, Adrenergic, beta-1/metabolism
- Receptors, Cholinergic/drug effects
- Receptors, Cholinergic/metabolism
- Receptors, Dopamine D2/drug effects
- Receptors, Dopamine D2/metabolism
- Receptors, Muscarinic/drug effects
- Receptors, Muscarinic/metabolism
- Receptors, Nicotinic/drug effects
- Receptors, Nicotinic/metabolism
- Receptors, Opioid/drug effects
- Receptors, Opioid/metabolism
- Receptors, Purinergic P1/drug effects
- Receptors, Purinergic P1/metabolism
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214
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Ter-Akopian GM, Hamilton JH, Oganessian YT, Kormicki J, Popeko GS, Daniel AV, Ramayya AV, Lu Q, Butler-Moore K, Ma W, Deng JK, Shi D, Kliman J, Polhorshy V, Morhac M, Greiner W, Sandelescu A, Cole JD, Aryaeinejad R, Johnson NR, Lee IY, McGowan FK. Neutron multiplicities and yields of correlated Zr-Ce and Mo-Ba fragment pairs in spontaneous fission of 252Cf. PHYSICAL REVIEW LETTERS 1994; 73:1477-1480. [PMID: 10056803 DOI: 10.1103/physrevlett.73.1477] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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215
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Daly JW, Shi D, Wong V, Nikodijevic O. Chronic effects of ethanol on central adenosine function of mice. Brain Res 1994; 650:153-6. [PMID: 7953667 DOI: 10.1016/0006-8993(94)90219-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Chronic ingestion of 5% ethanol had no significant effect on open field locomotor of NIH Swiss strain male mice, nor were the depressant effects of a non-selective adenosine receptor agonist, NECA, or the stimulant effects of a non-selective antagonist, caffeine significantly altered. The density of cerebral cortical A1-adenosine receptors and of nitrendipine binding sites on calcium channels were significantly increased after chronic ethanol, while the density of striatal A2a-adenosine receptors were unchanged. The locomotor stimulant effects of ethanol (2.5 g/kg) were slightly decreased after chronic ethanol, but were markedly reduced in mice after chronic caffeine ingestion. The results suggest some involvement of adenosine systems in the effects of ethanol.
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216
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Cristalli G, Vittori S, Thompson RD, Padgett WL, Shi D, Daly JW, Olsson RA. Inhibition of platelet aggregation by adenosine receptor agonists. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 1994; 349:644-50. [PMID: 7969516 DOI: 10.1007/pl00004904] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
2-(Ar)alkoxyadenosines, which are agonists selective for the A2AAR in PC 12 cell and rat striatum membranes, are also agonists at the A2AR coupled to adenylate cyclase (AC) that mediates the inhibition of platelet aggregation. A panel of twelve well-characterized adenosine analogues stimulated human platelet AC and inhibited ADP-induced platelet aggregation at sub- to low-micromolar concentrations with a potency ranking CGS 21680 > adenosine > R-PIA. There were significant correlations between the EC50 of anti-aggregatory activity and either the EC50 of stimulation of platelet and PC 12 cell AC (r2 = 0.66 and 0.67, respectively) or the Ki of inhibition of [3H]NECA binding to the rat striatum membranes (r2 = 0.75). Likewise, platelet AC stimulation correlated well with stimulation of PC 12 cell AC and with [3H]NECA binding (r2 = 0.94 and 0.91, respectively). Ten 2-(ar)alkoxyadenosines stimulated platelet AC at EC50s ranging between 0.16 and 2.3 microM and inhibited platelet aggregation at EC50s ranging between 2 and 30 microM. There were no correlations between the EC50s of anti-aggregatory activity and either the EC50s of the stimulation of platelet or PC 12 AC (r2 = 0.08 and 0.06, respectively) or with the Ki of the inhibition of [3H]NECA binding to the A2aAR in rat striatum (r2 = 0.02). The EC50s of the stimulation of platelet AC correlated with those of the stimulation of PC 12 AC (r2 = 0.48), and also with the Ki of [3H]NECA binding (r2 = 0.71). Each of the 23 adenosines completely inhibited platelet aggregation and thus, functionally, all behaved as full agonists.(ABSTRACT TRUNCATED AT 250 WORDS)
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217
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Liu F, Shi D, Lu SZ. [Classification of hand and its significance]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1994; 32:73-6. [PMID: 7924670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Measurements of normal values in hand appearance and thumb movements were done in 102 male adult volunteers with no history of previous injury to their hands. The data showed some characteristics between the appearance and function of hand, for example, no case showed the distance of adduction of thumb was 0, but the normal function of hand was still acquired. Positive correlation appeared between the indexes of appearances of hand. Correlation analysis have been done for three pairs of indexes, that is, hand length and width, length of thumb and the distance of first web, adduction of thumb and thumb-opposition. The correlation charts and their formulae have been presented. Furthermore, hands of male chinese could be classified into five types according to the correlation chart or the formula. The significance of such classification i discussed as well.
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218
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Jacobson KA, Nikodijević O, Shi D, Gallo-Rodriguez C, Olah ME, Stiles GL, Daly JW. A role for central A3-adenosine receptors. Mediation of behavioral depressant effects. FEBS Lett 1993; 336:57-60. [PMID: 8262217 PMCID: PMC4287251 DOI: 10.1016/0014-5793(93)81608-3] [Citation(s) in RCA: 124] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The behavioral effects of a selective A3 adenosine receptor agonist 3-IB-MECA (N6-(3-iodobenzyl)-5'-N-methylcarboxamidoadenosine) in mice and the localization of radioligand binding sites in mouse brain were examined. Low levels of A3 adenosine receptors were detected in various regions of the mouse brain (hippocampus, cortex, cerebellum, striatum), using a radioiodinated, high-affinity A3-agonist radioligand [125I]AB-MECA (N6-(3-iodo-4-aminobenzyl)-5'-N-methylcarboxamidoadenosine). Scatchard analysis in the cerebellum showed that the Kd value for binding to A3 receptors was 1.39 +/- 0.04 nM with a Bmax of 14.8 +/- 2.1 fmol/mg protein. 3-IB-MECA at 0.1 mg/kg i.p. was a locomotor depressant with > 50% reduction in activity. Although selective A1 or A2a antagonists reversed locomotor depression elicited by selective A1 or A2a agonists, respectively, the behavioral depressant effects of 3-IB-MECA were unaffected. 3-IB-MECA also caused scratching in mice, which was prevented by coadministration of the histamine antagonist cyproheptadine. The demonstration of a marked behavioral effect of A3 receptor activation suggests that the A3 receptor represents a potential new therapeutic target.
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219
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Wang Z, Shi D. Expression for the time dependence of current density with avalanche dynamics in type-II superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:16176-16179. [PMID: 10008197 DOI: 10.1103/physrevb.48.16176] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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220
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Yu D, Shi D, Scanlon M, Hung MC. Reexpression of neu-encoded oncoprotein counteracts the tumor-suppressing but not the metastasis-suppressing function of E1A. Cancer Res 1993; 53:5784-90. [PMID: 7902209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
By transfecting the adenovirus 5 E1A gene into neu-transformed NIH3T3 cells, we previously showed that E1A can dramatically repress neu-encoded p185 expression and, concomitantly, suppress the features of transformation and metastasis of neu+E1A transfectants. From these results we concluded that suppression of transformation and metastasis by E1A in neu-transformed cells may be through repression of neu gene expression. However, E1A has recently been shown to also repress the transformation features of other human cancer cells that do not overexpress neu. This observation raised a possibility that repression of neu gene expression in our neu+E1A cells might not be the only mechanism for transformation and metastasis suppression. To study whether other molecular mechanisms might be involved in suppression of transformation and metastasis by E1A in our neu+E1A cells, we reexpressed p185 oncoprotein in the neu+E1A cells by transfecting them with a plasmid containing activated rat neu complementary DNA and we examined whether E1A can suppress transformation and metastasis when the neu-encoded p185 protein is reexpressed. All the features of transformed cells including cell morphology, DNA synthesis rate, colony formation in soft agar, and tumorigenicity in nu/nu mice were restored in the cell lines that reexpressed neu. In addition, the levels of neu reexpression corresponded to the degree of malignant transformation. However, the in vivo metastatic tumor formation by these p185 reexpressing cells was still significantly inhibited by E1A. When metastasis-associated properties were examined in the cell lines that reexpressed p185, we found that cell motility was recovered by reexpression of p185 to the degree corresponding to the p185 reexpression level, but secretion of membrane-degrading gelatinases and invasion through the basement membrane preparation Matrigel by these cells were still inhibited by E1A. The data demonstrated that reexpression of p185 in neu+E1A cells can counteract the tumor-suppressing function of E1A but not completely recover the neu-induced metastatic phenotype. We conclude from these results that (a) repression of neu oncogene expression was indeed the molecular mechanism by which E1A suppressed tumor formation in neu-transformed 3T3 cells, and (b) suppression of metastasis by E1A in neu-transformed 3T3 cells was via multiple molecular mechanisms in addition to repressing neu. Our model system clearly demonstrated that tumorigenicity and metastasis are related but separable phenomena.
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221
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Müller CE, Shi D, Manning M, Daly JW. Synthesis of paraxanthine analogs (1,7-disubstituted xanthines) and other xanthines unsubstituted at the 3-position: structure-activity relationships at adenosine receptors. J Med Chem 1993; 36:3341-9. [PMID: 8230124 DOI: 10.1021/jm00074a015] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Synthetic procedures for the preparation of various 3-unsubstituted xanthines, including paraxanthine analogs (1,7-disubstituted xanthines) and 1,8-disubstituted xanthines, were developed. Silylation of 1-substituted xanthines followed by alkylation at the 7-position provides a facile route to paraxanthine analogs. Regioselective alkylation of tris(trimethylsilyl)-6-aminouracil provides 3-substituted 6-aminouracils, which are converted to 1,8-disubstituted xanthines by standard procedures. The ring closure of 3-substituted 5-cyclopentanecarboxamido- and 5-(benzoylamino)-6-aminouracils requires drastic reaction conditions. Affinity for brain A1 and A2 adenosine receptors was determined in binding assays for these and other xanthines with substituents in 1-, 3-, 7-, 8-, and 9-positions. Substitution at the 1-position was necessary for high affinity at adenosine receptors. 1,3-Disubstituted xanthines generally had higher affinity than 1,7-disubstituted xanthines. 1,8-Disubstituted xanthines had high affinity for adenosine receptors; some were highly selective for A1 receptors.
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222
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Wang Z, Shi D. Thermally activated flux avalanches in single crystals of high-Tc superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:9782-9787. [PMID: 10007228 DOI: 10.1103/physrevb.48.9782] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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223
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Jacobson KA, Shi D, Gallo-Rodriguez C, Manning M, Müller C, Daly JW, Neumeyer JL, Kiriasis L, Pfleiderer W. Effect of trifluoromethyl and other substituents on activity of xanthines at adenosine receptors. J Med Chem 1993; 36:2639-44. [PMID: 8410976 DOI: 10.1021/jm00070a007] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
An aryl p-(trifluoromethyl) substituent increases the affinity of 1,3-disubstituted 8-phenylxanthines at A2a-adenosine receptors, while having little effect on affinity at A1-adenosine receptors. In contrast, an aryl p-(trifluoromethyl) substituent has little effect on affinity of 3,7-disubstituted and 1,3,7-trisubstituted 8-phenylxanthines. An aryl p-sulfo substituent reduces affinity of all 8-phenylxanthines at A1- and A2a-adenosine receptors. An 8-(trifluoromethyl) substituent markedly reduces affinity of 1,3-dialkylxanthines at both A1- and A2a-adenosine receptors. In contrast, 8-(trifluoromethyl)caffeine retains affinity for A2a-adenosine receptors, but does lose affinity for A1-adenosine receptors. 8-Bromo-, 8-acryl-, and 8-pent-1-enylcaffeines are also selective for A2-adenosine receptors, while 8-cyclobutylcaffeine is nonselective. 8-[trans-2-(tert-butyloxycarbonyl)vinylcaffeine is 20-fold selective for Aza vs A1 receptors.
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224
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Sengupta S, Shi D, Sergeenkov S, McGinn PJ. Nonlinear U(j) law from magnetic relaxation in Bi2Sr2CaCu2Ox single crystals: Flux motion through double-kink formation of the pancake vortices. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:6736-6739. [PMID: 10009246 DOI: 10.1103/physrevb.48.6736] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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225
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Jiang N, Zhang Z, Sun BW, Shi D. A high-resolution electron microscopic study of the interface between diamond film and its substrate. Acta Crystallogr A 1993. [DOI: 10.1107/s0108767378091035] [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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226
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Wang Z, Shi D. Effect of flux avalanches on activation energy in type-II superconductors: Evidence for self-organized criticality. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:4208-4211. [PMID: 10008887 DOI: 10.1103/physrevb.48.4208] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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227
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Wang YY, Zhang H, Dravid VP, Shi D, Hinks DG, Zheng Y, Jorgensen JD. Evolution of the low-energy excitations and dielectric function of Ba1-xKxBiO3 (0 <= x <= 0.50). PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:14503-14509. [PMID: 10005803 DOI: 10.1103/physrevb.47.14503] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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228
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Shi D, Nikodijević O, Jacobson KA, Daly JW. Chronic caffeine alters the density of adenosine, adrenergic, cholinergic, GABA, and serotonin receptors and calcium channels in mouse brain. Cell Mol Neurobiol 1993; 13:247-61. [PMID: 8242688 PMCID: PMC3437321 DOI: 10.1007/bf00733753] [Citation(s) in RCA: 121] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
1. Chronic ingestion of caffeine by male NIH strain mice alters the density of a variety of central receptors. 2. The density of cortical A1 adenosine receptors is increased by 20%, while the density of striatal A2A adenosine receptors is unaltered. 3. The densities of cortical beta 1 and cerebellar beta 2 adrenergic receptors are reduced by ca. 25%, while the densities of cortical alpha 1 and alpha 2 adrenergic receptors are not significantly altered. Densities of striatal D1 and D2 dopaminergic receptors are unaltered. The densities of cortical 5 HT1 and 5 HT2 serotonergic receptors are increased by 26-30%. Densities of cortical muscarinic and nicotinic receptors are increased by 40-50%. The density of cortical benzodiazepine-binding sites associated with GABAA receptors is increased by 65%, and the affinity appears slightly decreased. The density of cortical MK-801 sites associated with NMDA-glutaminergic receptors appear unaltered. 4. The density of cortical nitrendipine-binding sites associated with calcium channels is increased by 18%. 5. The results indicate that chronic ingestion of caffeine equivalent to about 100 mg/kg/day in mice causes a wide range of biochemical alterations in the central nervous system.
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MESH Headings
- Animals
- Brain Chemistry/drug effects
- Caffeine/administration & dosage
- Caffeine/pharmacology
- Calcium Channels/drug effects
- Cerebellum/chemistry
- Cerebellum/drug effects
- Cerebral Cortex/chemistry
- Cerebral Cortex/drug effects
- Corpus Striatum/chemistry
- Corpus Striatum/drug effects
- Male
- Mice
- Receptors, Adrenergic/classification
- Receptors, Adrenergic/drug effects
- Receptors, Cholinergic/classification
- Receptors, Cholinergic/drug effects
- Receptors, Dopamine/analysis
- Receptors, GABA/classification
- Receptors, GABA/drug effects
- Receptors, Glutamate/analysis
- Receptors, Neurotransmitter/drug effects
- Receptors, Purinergic P1/classification
- Receptors, Purinergic P1/drug effects
- Receptors, Serotonin/classification
- Receptors, Serotonin/drug effects
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229
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Shi D, Xing X, Wolbarsht ML. Influence of vibration on microdiameter measurements using a laser-charge-coupled device system. APPLIED OPTICS 1993; 32:2304-2311. [PMID: 20820387 DOI: 10.1364/ao.32.002304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The influence of vibration on dynamic measurements of microdiameters using a laser diffraction-CCD detection system is studied. The theoretical analysis indicates that the influence of vibration on the diffraction pattern of a measured object introduces significant errors into its diameter measurement, and the improvement can be approached by using a TEM(00) Gaussian incident beam instead of the usual uniform beam. The experimental results of these cases are also presented and in good accordance with the theoretical analysis.
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230
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Hou L, Shi D, Tu SM, Zhang HZ, Hung MC, Ling D. Oral cancer progression and c-erbB-2/neu proto-oncogene expression. Cancer Lett 1992; 65:215-20. [PMID: 1355405 DOI: 10.1016/0304-3835(92)90234-m] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Monoclonal antibody PAb3 to c-erbB-2/neu protein was utilized in the immunoperoxidase staining of 86 human specimens from oral mucosa. These tissue specimens represented a spectrum from 7 normal to 9 simple hyperplasia, 15 mild dysplasia, 14 moderate dysplasia, 20 severe dysplasia and 21 squamous cell carcinoma. Our study indicated that as the cells acquire a more malignant phenotype, there was a progressive increase in neu expression. It also suggested that neu may be involved in the development of oral cancers and that its evaluation in the early stages may assist in the diagnosis and management of oral cancers.
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231
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Salem-Sugui S, Shi D. Flux-creep activation energy in high-Tc superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 46:6618-6621. [PMID: 10002358 DOI: 10.1103/physrevb.46.6618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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232
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Tang JB, Shi D. Subdivision of flexor tendon "no man's land" and different treatment methods in each sub-zone. A preliminary report. Chin Med J (Engl) 1992; 105:60-8. [PMID: 1576873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
"No man's land" of the flexor tendon system is divided into 4 subdivisions based on our anatomical study. Clinically, a total of 72 flexor tendon injuries in "no man's land" were repaired during the primary and delayed primary stages. Different treatments of flexor tendons, sheath, vincula and postoperative exercises were used according to the degree of injury and anatomical and functional characteristics of each subdivision. The multiple intratendinous suture method, autogenous sheath graft and vincular repair were designed and attempted preliminarily in clinical practice. In 80.4% of the cases, excellent or good results were achieved. Comparison of treatment results in each sub-zone reveals that the IIc sub-zone is the most difficult area for satisfactory functional recovery in "no man's land". The significance of the subdivision of Bunnell's "no man's land" is discussed, and the preoperative assessment method of noting the extent of injury and selection of the treatment method for each sub-zone are presented in this paper. We believe that primary or delayed primary repair can restore good function to the repaired tendons. The effective way of enhancing treatment results of the tendon injury is to apply comprehensive treatment according to the extent of injury to the intrinsic healing capacity of the flexor digitorum profundus tendon.
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233
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Shi D, He G, Cao S, Pan W, Zhang HZ, Yu D, Hung MC. Overexpression of the c-erbB-2/neu–encoded p185 protein in primary lung cancer. Mol Carcinog 1992; 5:213-8. [PMID: 1350198 DOI: 10.1002/mc.2940050308] [Citation(s) in RCA: 95] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The c-erbB-2/neu gene encodes a transmembrane protein of 185 kDa (p185) with tyrosine kinase activity and extensive sequence homology to epidermal growth factor receptor. Amplification and overexpression of the c-erbB-2/neu gene has been shown in certain human tumors and is postulated to be important in human carcinogenesis. High levels of expression of the c-erbB-2/neu gene have been reported in non-small-cell lung cancer (NSCLC) cell lines and primary tumors from the United States. Since geographical and cultural factors may contribute to the development of certain types of cancer, we examined p185 examined p185 expression in 120 tumors from Chinese patients with lung cancers of different cell types and used immunohistochemical staining to determine the extent and general significance of p185 expression in human primary lung cancer. Our results demonstrate that 58.8% of the NSCLCs expressed p185 and that expression of p185 was observed only in NSCLC and not in small-cell lung cancers. Thirty-three of 41 adenocarcinomas and 24 of 55 squamous cell carcinomas among the NSCLCs examined were found to express p185 at levels different from those of normal lung. For the squamous cell carcinomas, p185 expression was correlated with lymph node metastasis (P less than 0.01), but for the adenocarcinomas, it was not (P greater than 0.05). In addition, expression of p185 in NSCLC was significantly more frequent in patients in advanced clinical stages. Our findings indicate that p185 expression is a frequent event and a general phenomenon in NSCLC and is correlated with poor clinical prognostic indicators, suggesting that expression of p185 may be of potential prognostic importance in NSCLC.
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234
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Shi D, Salem-Sugui S. Magnetic relaxation in YBa2Cu3Ox. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:7647-7653. [PMID: 9998680 DOI: 10.1103/physrevb.44.7647] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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235
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Shi D, Xu M. Nonlinear logarithmic time decay of magnetization in a single crystal of Bi2Sr2CaCu2Ox. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:4548-4552. [PMID: 10000109 DOI: 10.1103/physrevb.44.4548] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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236
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Shi D, Ling XS, Xu M, Fang MM, Luo S, Budnick JI, Dabrowski B, Hinks DG, Richards DR, Zheng Y. Erratum: Irreversibility in Ba0.625K0.375BiO3. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:933. [PMID: 9999218 DOI: 10.1103/physrevb.44.933.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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237
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Xu M, Shi D, Umezawa A, Vandervoort KG, Crabtree GW. Full-penetration temperature and magnetic relaxation in a single crystal of Bi2Sr2CaCu2Ox. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:13049-13052. [PMID: 9997125 DOI: 10.1103/physrevb.43.13049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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238
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Shi D, Ling XS, Xu M, Fang MM, Luo S, Budnick JI, Dabrowski B, Hinks DG, Richards DR, Zheng Y. Irreversibility in Ba0.625K0.375BiO3. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:3684-3687. [PMID: 9997693 DOI: 10.1103/physrevb.43.3684] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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239
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Shi D, Kourous HE, Xu M, Kim DH. Thermally activated dissipation in a long-term-annealed single crystal of Bi2Sr2CaCu2Ox. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:514-518. [PMID: 9996238 DOI: 10.1103/physrevb.43.514] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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240
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Xu M, Shi D, Fox RF. Generalized critical-state model for hard superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:10773-10776. [PMID: 9995346 DOI: 10.1103/physrevb.42.10773] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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241
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Shi D, Xu M, Umezawa A, Fox RF. Temperature and field dependence of magnetic relaxation in a Bi2Sr2CaCu2Ox single crystal. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:2062-2065. [PMID: 9995648 DOI: 10.1103/physrevb.42.2062] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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242
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Tan Z, Filipkowski ME, Budnick JI, Heller EK, Brewe DL, Chamberland BL, Bouldin CE, Woicik JC, Shi D. Strontium-induced oxygen defect structure and hole doping in La2-xSrxCuO4. PHYSICAL REVIEW LETTERS 1990; 64:2715-2718. [PMID: 10041791 DOI: 10.1103/physrevlett.64.2715] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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243
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Shi D, Xu M, Fang MM, Chen JG, Cornelius AL, Lanan SG. Effect of microstructural changes on thermally activated flux-creep behavior in the Bi-Sr-Ca-Cu-O system. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 41:8833-8837. [PMID: 9993221 DOI: 10.1103/physrevb.41.8833] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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244
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Shi D, Boley MS, Welp U, Chen JG, Liao Y. Flux pinning by precipitates in the Bi-Sr-Ca-Cu-O system. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 40:5255-5258. [PMID: 9992544 DOI: 10.1103/physrevb.40.5255] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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245
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Shi D, Tang M, Boley MS, Hash M, Vandervoort K, Claus H, Lwin YN. Crystallization of metal-oxide glasses in Bi-Sr-Ca-Cu-O systems. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 40:2247-2253. [PMID: 9992105 DOI: 10.1103/physrevb.40.2247] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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246
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Shi D, Tang M, Vandervoort K, Claus H. Formation of the 110-K superconducting phase via the amorphous state in the Bi-Sr-Ca-Cu-O system. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 39:9091-9098. [PMID: 9947636 DOI: 10.1103/physrevb.39.9091] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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247
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Shi D. Phase transformations in YBa2Cu3O7- delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 39:4299-4305. [PMID: 9948770 DOI: 10.1103/physrevb.39.4299] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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248
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Liu F, Shi D, Tang JB. Changes in osseous tissue after vascular bundle implantation. Experimental study on dogs. Chin Med J (Engl) 1988; 101:468-72. [PMID: 3147840] [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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249
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Shi D. [Operative treatment of traumatic arteriovenous fistula]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1988; 26:294-6, 319. [PMID: 3229223] [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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250
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Shi D, Zhao DY. [Anterior fusion by anterio-lateral approach in the treatment of atlanto-axial instability]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1988; 26:141-2, 189. [PMID: 3197548] [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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