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Marcus SL, Smith SW, Sarkar NH. Quantitative of murine mammary tumor virus-related RNA in mammary tissues of low- and high-mammary-tumor-incidence mouse strains. J Virol 1981; 40:87-95. [PMID: 6270387 PMCID: PMC256598 DOI: 10.1128/jvi.40.1.87-95.1981] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Lactating mammary glands and hormonally induced mammary tumors of BALB/c mice from three geographically separated breeding colonies were examined by molecular hybridization, using murine mammary tumor virus (MuMTV) cDNA representing the entire viral genome to determine the amount of MuMTV-related RNA expressed in these tissues. The RNA extracted from these tissues by the classical sodium dodecyl sulfate-pronase, phenol-chloroform procedure (method 1) contained barely detectable levels of MuMTV-related sequences. In contrast, both normal lactating mammary glands and hormonally induced mammary tumors of these mice were found to contain approximately one to two copies of the MuMTV genome per cell by using a new procedure in which the RNA was extracted with guanidine derivatives (method 2). No significant differences in the MuMTV-related RNA content of the BALB/c mammary tissues were observed regardless of their colony of origin. Our results suggest that expression of MuMTV RNA does not change in BALB/c mammary glands during transformation to a malignant state and that MuMTV expression does not play a role in tumorigenesis in these mice. In view of the increased recovery of MuMTV-related RNA from BALB/c mice with method 2, we compared the level of MuMTV RNA expression in lactating mammary glands and mammary tumors of other mouse strains, including C57BL/6 and RIII, using both extraction methods. Yields of MuMTV-related RNA from mammary tissues increased by as much as 35- to 40-fold, using method 2 as compared with method 1. Therefore method 2, involving guanidine derivatives, appears to be method of choice for MuMTV-related RNA extraction from the mammary tissues of certain strains of mice, particularly those expressing relatively low levels of MuMTV RNA.
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152
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Marcus SL, Smith SW, Bacchi CJ. Polyamines stimulate natural RNA-directed DNA synthesis by Rauscher murine leukemia virus DNA polymerase. Biochem Biophys Res Commun 1981; 99:1361-8. [PMID: 6894857 DOI: 10.1016/0006-291x(81)90769-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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153
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Marcus SL, Smith SW, Bacchi CJ. Polyamines stimulate DNA-directed DNA synthesis catalyzed by mammalian type C retroviral DNA polymerases. J Biol Chem 1981; 256:3460-4. [PMID: 6259167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
In the presence of optimal concentrations of Mg2+, rates of activated (gapped) DNA-directed DNA synthesis by purified mammalian type C retroviral DNA polymerases are stimulated greater than 10-fold by the polyamines spermine and spermidine. Such stimulation was not observed using either similar concentrations of the polyamines cadaverine or putrescine or exogenously provided salt or ammonium ions. Avian type C as well as mammalian type B and type D retroviral DNA polymerases, in contrast to the mammalian type C enzyme, were found to be relatively insensitive to spermine and spermidine stimulation. Kinetic analysis of the polyamine stimulation of activated DNA-directed DNA synthesis carried out using spermine and purified Rauscher leukemia virus DNA polymerase revealed at least two distinct mechanisms of activation of DNA synthesis. 1) At DNA concentrations below 2.5 micrograms/ml, spermine appears to interact with the enzyme-DNA complex in order to stimulate synthesis. 2) At DNA concentrations above 2.5 micrograms/ml, increased spermine stimulation is observed which appears to be due to its direct interaction with the activated DNA template resulting in either selective limitation of the formation of "dead-end" enzyme-DNA complexes or its ability to convert such nonproductive enzyme binding sites into productive sites for the initiation of synthetic activity. The addition of spermine to reaction mixtures was found to increase both the apparent Km and Vmax of the activated (gapped) DNA-directed reaction with regard to template concentration.
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154
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Smith SW. Chasing bugs in Brazil. BRITISH MEDICAL JOURNAL 1981; 282:205-6. [PMID: 6779951 PMCID: PMC1503952 DOI: 10.1136/bmj.282.6259.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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155
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Humphries KN, Hames TK, Smith SW, Cannon VA, Chant AD. Quantitative assessment of the common femoral to popliteal arterial segment using continuous wave doppler ultrasound. ULTRASOUND IN MEDICINE & BIOLOGY 1980; 6:99-105. [PMID: 7404847 DOI: 10.1016/0301-5629(80)90037-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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156
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Marcus SL, Smith SW, Racevskis J, Sarkar NH. Purification of murine oncornaviral phosphoproteins using alkyl agarose derivatives.. J Biol Chem 1979; 254:4809-13. [PMID: 220261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Methods for the purification of both murine mammary tumor (type B) and murine leukemia (type C) oncornaviral phosphoproteins are described, in which chromatography on alkyl-agarose derivatives is used as the primary fractionation step. Gel filtration or ion exchange chromatography on phosphocellulose was the only subsequent step required for the purification of the type B and type C viral proteins, respectively. The two-step protocols also resulted in the co-purification of a low molecular weight core protein from each virus. Recoveries of the viral proteins purified by this method, based on per cent contribution of individual polypeptides to total virion proteins, were 70% or greater. Radioimmunocompetition analysis of the purified murine mammary tumor virus major core protein as well as analysis of the RNA binding properties of purified low molecular weight type C virus proteins suggests that neither antigenic reactivity nor specific RNA binding characteristics are altered by the purification protocols. The availability of these procedures should aid studies on the possible function and immunochemical properties of the native murine oncornaviral phosphoproteins and may also be extended to the purification of other oncornaviral proteins.
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157
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Sen GC, Smith SW, Marcus SL, Sarkar NH. Identification of the messenger RNAs coding for the gag and env gene products of the murine mammary tumor virus. Proc Natl Acad Sci U S A 1979; 76:1736-40. [PMID: 221904 PMCID: PMC383465 DOI: 10.1073/pnas.76.4.1736] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Full-length (35S) genomic RNA from murine mammary tumor virus (MuMTV) was translated in vitro, using a reticulocyte lysate system, into proteins of 105,000, 75,000, 65,000, 35,000, and 27,000 daltons. These proteins were all immunoprecipitable with a monospecific antiserum to the major viral core protein, p27, but not with antiserum to the major viral envelope glycoprotein, gp47. Translation in vitro of RNA of about 24S size extracted from MuMTV yielded proteins similar in size and immunoreactivity to the products of the 35S RNA translation. Polyadenylylated RNA isolated from an MuMTV-producing cell line was fractionated according to size by velocity sedimentation and subsequently hybridized to MuMTV complementary DNA probes. These studies identified at least three size classes (35S, 24S, and 14-18S) of intracellular MuMTV-specific RNA. The 35S intracellular RNA was translated into MuMTV-specific proteins identical in size and immunoreactivity to the products of the virion-derived 35S RNA. On the other hand, translation of the intracellular 24S RNA fraction resulted in the synthesis of proteins, of which two (of about 70,000 daltons) could be immunoprecipitated with anti-gp47 serum, but not with anti-p27 serum. From these data we conclude that MuMTV core and envelope proteins are synthesized from two different mRNAs with approximate sizes of 35S and 24S, respectively. Our results also imply that the intracellular 24S mRNA is synthesized by a process more complex than simple cleavage of the 35S RNA.
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158
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Young CW, Mladek J, Smith SW, Bittar ES. Studies on acid lipase, and E 600-resistant acid esterase activities in human tissue homogenates. J Histochem Cytochem 1978; 26:829-34. [PMID: 31397 DOI: 10.1177/26.10.31397] [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: 12/12/2022] Open
Abstract
Detailed comparison of acid lipase and acid esterase activities of human spleen, liver and kidney homogenates has been carried out by means of the following substrates: 14C-tripalmitin, alpha-naphthyl acetate, alpha-naphthyl butyrate, alpha-naphthyl laurate, p-nitro-phenyl acetate, butyrate and laurate. In addition, homogenates of the three tissues were subjected to isoelectric focusing in polyacrylamide gels and histochemical staining with the above mentioned naphthyl substrates in the presence and absence of the organophosphate esterase inhibitor diethyl-p-nitrophenyl phosphate (E 600). These studies provide extensive support for the proposal that E 600-resistant acid naphthyl butyryl and lauryl esterase activities in human tissues derive largely from the enzyme acid lipase. The studies suggest that the most specific chromogenic substrate for this enzyme at a biochemical and histochemical level is alpha-napthyl laurate in the presence of E600 (3 X 10(-6) M).
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159
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Marcus SL, Smith SW, Modak MJ. Reverse transcriptase-associated RNase H activity. II. Inhibition by natural and synthetic RNA. J Virol 1978; 27:576-81. [PMID: 81313 PMCID: PMC525844 DOI: 10.1128/jvi.27.3.576-581.1978] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The RNase H activity associated with purified avian myeloblastosis virus and Rauscher murine leukemia virus DNA polymerases is inhibited by homopolymeric RNA molecules, although the efficiency of inhibition by each homopolymer appears enzyme specific. Formation of duplex RNA molecules abolished the inhibitory activity. In contrast to these results, DNA polymerase-independent RNase H activities, such as the RNase H-II from Rauscher murine leukemia virus and calf thymus RNase H, were unaffected by the addition of exogenous RNA molecules to reaction mixtures. These results support the concept (M. J. Modak and S. L. Marcus, J. Virol. 22:253--256, 1977) that the catalytic site of DNA polymerase-associated RNase H activity may be that which is also involved in template binding. Naturally occurring RNA molecules of oncornaviral, procaryotic, or eucaryotic origin also proved to be efficient inhibitors of avian myeloblastosis virus DNA polymerase-associated RNase H activity. In contrast to this result, naturally occurring RNA molecules, at concentrations which inhibited the avian myeloblastosis virus enzyme, did not inhibit Rauscher murine leukemia virus DNA polymerase-catalyzed RNase H activity. This finding represents a new biochemical distinction between the two reverse transcriptases, and may be indicative of differences in the relative affinities of these enzymes for natural RNA molecules.
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160
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Smith SW, Gala RR. Rat plasma prolactin levels in response to electrical stimulation of the ventromedial nucleus of the hypothalamus: dependence upon stimulation parameters. Brain Res 1978; 147:390-5. [PMID: 647406 DOI: 10.1016/0006-8993(78)90850-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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161
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Marcus SL, Smith SW, Racevskis J, Sarkar NH. The relative hydrophobicity of oncornaviral structural proteins. Virology 1978; 86:398-412. [PMID: 208256 DOI: 10.1016/0042-6822(78)90080-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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162
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Abstract
Initial clinical results are reported from a new real time, 2-dimensional ultrasound scanner modified for adult cephalic applications. An optimized transducer design and the use of the dynamically focused phased array imaging system have resulted in ultrasound tomograms of the brain which are significant improvements over previous attempts. Horizontal and coronal images of the ventricles, the corpus callosum and other midline structures are routinely displayed in a 45 degrees sector format. In addition, pulsating cerebral arteries are displayed in real time. Quantitative information can be obtained concerning cerebral vascular patency by using the selectable M-mode feature of this system. The results indicate that real time ultrasound tomography has potential for clinical application.
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163
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Marcus SL, Smith SW. Hydrophobic interaction of retroviral DNA polymerases with alkyl-agarose matrices. Biochem Biophys Res Commun 1978; 80:220-8. [PMID: 203279 DOI: 10.1016/0006-291x(78)91126-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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164
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Gala RR, Van De Walle C, Hoffman WH, Lawson DM, Pieper DR, Smith SW, Subramanian MG. Lack of a circannual cycle of daytime serum prolactin in man and monkey. ACTA ENDOCRINOLOGICA 1977; 86:257-62. [PMID: 410210 DOI: 10.1530/acta.0.0860257] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Serum samples were obtained from 7 subjects (6 men and 1 woman) in the morning (09.00 h) and in the afternoon (15.00 h) of each week for a period of 13 months and assayed for prolactin by RIA. In addition, 4 female monkeys were sampled once weekly in the afternoon for approximately two years. The data were analyzed for cyclicity by power spectrum analysis. In both species a serum prolactin circannual cycle was not obvious. In most subjects statistically significant (P less than 0.05) cycles were observed; however, there was considerable variability among individuals in the duration of the cycle, which ranged between 4 and 50 weeks. A similar result was also observed for the monkey data; here the cycles ranged between 7 and 51 weeks. The physiologic significance of these cycles is unknown at present. It is suggested that although there appears to be no diurnal serum prolactin circannual cycle, this does not rule out the possibility that there may be a nocturnal circannual cycle.
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165
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Abstract
The effect of restraint on plasma prolactin and corticosterone concentrations was investigated in chronically catheterized, ovariectomized (OVX) or ovariectomized, oestrogen-treated (OVX-PEP) rats. Restraint was induced by tying the hind legs together. In OVX rats, prolactin levels were unchanged following restraint, either during the morning (10.00 h) or afternoon (14.00 h). Prolactin levels increased in OVX-PEP animals when restraint was initiated in the morning; when restraint was initiated in the afternoon the prolactin response depended upon the level of prolactin before restraint. If levels were low (pre-surge) the response to restraint was similar to that observed in the morning; if prolactin levels were high (surge) the response to restraint was reversed and the prolactin level declined. The morning prolactin response to restraint was significantly inhibited and the afternoon surge was retarded in adrenalectomized OVX-PEP (OVX-PEP-ADX) rats; however, in OVX-PEP animals maintained on 0-9% NaCl drinking solution, the morning prolactin response to restraint was also blunted, although the afternoon surge was normal. In OVX-PEP-ADX animals injected with either vehicle alone, or 2 or 4 mg corticosterone for 4 days, and sampled on the morning of day 5, the prolactin response to restraint was absent. Furthermore, when OVX-PEP animals were injected daily with either vehicle or 4 mg corticosterone/day, they showed no increase in prolactin in response to restraint when values were compared with those of uninjected animals. Corticosterone levels after restraint were higher than initial values in all of the above experimental conditions.
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166
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Smith SW, Odell RH, Marsh DJ, Yates FE. Patterns of plasma free fatty acid concentrations in fasted, resting dogs. THE AMERICAN JOURNAL OF PHYSIOLOGY 1977; 232:E25-34. [PMID: 835700 DOI: 10.1152/ajpendo.1977.232.1.e25] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Free fatty acid (FFA) concentrations were determined in arterial plasma samples obtained during short or prolonged fasts from resting, conscious adult male mongrel dogs. Arterial blood was continuously collected during experiments ranging from 2.25 to 15 h, from dogs fasted 1 or 5 days. Each continuous collection stream was divided at 45 equal intervals into separate sequential samples. In 18 experiments, no consistent pattern was found in plasma FFA concentrations: the concentrations were never constant, and fluctuations were only rarely periodic. Large, spontaneous, seemingly random level changes with amplitudes of 200-600 mueq/liter were observed in 14 experiments, that took from 1 to 8 h to complete. There was no apparent relation between these fluctuations and time of day or rectal temperature, and glucose concentrations remained unchanged during the FFA fluctuations. The inconstancy of plasma FFA levels and the irregularity of their fluctuations suggests that FFA production rates may be unregulated or only loosely regulated within a wide regulation band during the first few days of starvation. No current model of FFA metabolism preducts the observed patterns of FFA levels.
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167
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Young CW, Yagoda A, Bittar ES, Smith SW, Grabstald H, Whitmore W. Therapeutic trial of aniline mustard in patients with advanced cancer. Comparison of therapeutic response with cytochemical assessment of tumor cell beta-glucuronidase activity. Cancer 1976; 38:1887-95. [PMID: 991104 DOI: 10.1002/1097-0142(197611)38:5<1887::aid-cncr2820380504>3.0.co;2-#] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Seventy-eight patients with advanced cancer received an adequate therapeutic trial with aniline mustard (NSC 18429). Significant anticancer activity with clinical benefit was demonstrated in five patients with cancer of the prostate and one patient with renal cancer. beta-glucuronidase levels in aspirate and imprint preparations of tumor cells were assessed by a timed cytochemical technique. A partial correlation appeared to exist between very intense glucuronidase staining and tumor regression in prostate and kidney lesions; however, these high levels were observed only rarely. Sequential observations in two patients demonstrated loss of enzymatic activity concomitant with development of clinical relapse.
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168
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Osgood CE, Luria Z, Smith SW. The Three Faces of Evelyn: a case report. II. A blind analysis of another case of multiple personality using the semantic differential technique. JOURNAL OF ABNORMAL PSYCHOLOGY 1976; 85:256-70. [PMID: 932312 DOI: 10.1037/h0078101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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169
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Marcus SL, Smith SW, Jarowski CI, Modak MJ. Terminal deoxyribonucleotidyl transferase activity in acute undifferentiated leukemia. Biochem Biophys Res Commun 1976; 70:37-44. [PMID: 1275943 DOI: 10.1016/0006-291x(76)91105-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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170
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Smith SW, Odell RH. Detection by a permutation test of periodicities in biological time series: dependence of sensitivity on measurement precision. Ann Biomed Eng 1976; 4:68-77. [PMID: 937775 DOI: 10.1007/bf02363559] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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171
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Smith SW. Letter: In support of family medicine. ARCHIVES OF INTERNAL MEDICINE 1976; 136:120. [PMID: 1247333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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172
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173
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Smith SW, Wright H. Effect of dietary Mo on Cu metabolism. Evidence for the involvement of Mo in abnormal binding of Cu to plasma proteins. Clin Chim Acta 1975; 62:55-63. [PMID: 1149282 DOI: 10.1016/0009-8981(75)90279-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The effects of feeding Mo at concentrations of 17 mug/g to sheep and 100 mug/g to guinea pigs in the presence of adequate dietary Cu, on the distribution of Cu within plasma have been studied. The creation of a fraction of plasma Cu which is insoluble in trichloroacetic acid has been confirmed and it has been shown that this fraction also contains Mo. Complete removal of Cu and Mo from this protein cannot be achieved under acid conditions without at least partial hydrolysis of the protein. The estimated atomic ratio of Cu:Mo in the fraction was 1.7. It is suggested that the formation of such a stable Cu-Mo-protein compound may explain the observed low tissue uptake of Cu in the presence of high plasma total and "direct-reacting" Cu concentrations.
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174
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Odell RH, Smith SW, Yates FE. A permutation test for periodicities in short, noisy time series. Ann Biomed Eng 1975; 3:160-80. [PMID: 1211680 DOI: 10.1007/bf02363068] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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175
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Smith SW, Spurling NW. Device for exposing the respiratory tract of the rat to medicinal aerosols. LABORATORY PRACTICE 1974; 23:717-21. [PMID: 4444265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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176
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Lester RL, Smith SW, Wells GB, Rees DC, Angus WW. The isolation and partial characterization of two novel sphingolipids from Neurospora crassa: di(inositolphosphoryl)ceramide and ((gal)3glu)ceramide. J Biol Chem 1974; 249:3388-94. [PMID: 4364652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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177
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Smith SW, Lester RL. Inositol phosphorylceramide, a novel substance and the chief member of a major group of yeast sphingolipids containing a single inositol phosphate. J Biol Chem 1974; 249:3395-405. [PMID: 4364653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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178
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Ookhtens M, Marsh DJ, Smith SW, Bergman RN, Yates FE. Fluctuations of plasma glucose and insulin in conscious dogs receiving glucose infusions. THE AMERICAN JOURNAL OF PHYSIOLOGY 1974; 226:910-9. [PMID: 4823053 DOI: 10.1152/ajplegacy.1974.226.4.910] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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179
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Willson JT, Jones NA, Katsh S, Smith SW. Penetration of the testicular-tubular barrier by horseradish peroxidase induced by adjuvant. Anat Rec (Hoboken) 1973; 176:83-100. [PMID: 4703521 DOI: 10.1002/ar.1091760106] [Citation(s) in RCA: 39] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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180
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Smith SW, Brown DG. Radiofrequency and microwave radiation levels resulting from mammade sources in the Washington, D.C. area. RADIATION DATA AND REPORTS 1972; 13:335-45. [PMID: 5042136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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181
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Smith SW. Sic transit Gloria Swanson (Hippocrates has a lot to answer for). THE MANCHESTER MEDICAL GAZETTE 1972; 51:47-8. [PMID: 5026050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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182
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Smith SW, Lawton IE. Involvement of the amygdala in the ovarian compensatory hypertrophy response. Neuroendocrinology 1972; 9:228-34. [PMID: 5016381 DOI: 10.1159/000122053] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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183
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Lawton IE, Smith SW. LH secretory patterns in intact and gonadectomized male and female rats. THE AMERICAN JOURNAL OF PHYSIOLOGY 1970; 219:1019-22. [PMID: 5466607 DOI: 10.1152/ajplegacy.1970.219.4.1019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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184
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Smith SW, Axelrod LR. Studies on the metabolism of steroid hormones and their precursors by the human placenta at various stages of gestation. 3. In vitro metabolism of 3 beta, 17 alpha-dihydroxy-pregn-5-ene-20-one. Steroids 1970; 15:421-32. [PMID: 4906385 DOI: 10.1016/s0039-128x(70)80059-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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185
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Anderson DL, Archambeau CB, Brune JN, Richter CF, Smith SW, Al JH, Bai LF, Ryall A, Boucher G, Emilian C, Harrisoi CG, Swansoi M. Earthquakes and Nuclear Detonations. Science 1970; 167:1011-4. [PMID: 17749620 DOI: 10.1126/science.167.3920.1011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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186
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Migeon BR, Smith SW, Leddy CL. The nature of thymidine kinase in the human-mouse hybrid cell. Biochem Genet 1969; 3:583-90. [PMID: 5369310 DOI: 10.1007/bf00485479] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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187
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Smith SW, Axelrod LR. Studies on the metabolism of steroid hormones and their precursors by the human placenta at various stages of gestation. II. In vitro metabolism of 3 beta-hydroxyandrost-5-en-17-one. J Clin Endocrinol Metab 1969; 29:1182-90. [PMID: 4241281 DOI: 10.1210/jcem-29-9-1182] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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188
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Smith SW, Axelrod LR. Studies on the metabolism of steroid hormones and their precursors by the human placenta at various stages of gestation. I. In vitro metabolism of 1,3,5(10)-estratriene-3,17-beta-diol. J Clin Endocrinol Metab 1969; 29:85-91. [PMID: 5762325 DOI: 10.1210/jcem-29-1-85] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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189
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Smith SW, Axelrod LR. The conversion of dehydroepiandrosterone to 5-alpha reduced metabolites by human placental preparations in vitro. Steroids 1968; 12:671-81. [PMID: 4235771 DOI: 10.1016/s0039-128x(68)80021-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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190
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Smith SW, Newman MS. The gem-dialkyl effect. II. A comparison of the kinetic and equilibrium approaches to the selective ketalization of 5 alpha-androstane-3,17-dione with various glycols. J Am Chem Soc 1968; 90:1249-53. [PMID: 5636535 DOI: 10.1021/ja01007a025] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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191
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Walker RI, Herion JC, Smith SW. Granulocytes and red cell lysis. Blood 1967; 30:485-94. [PMID: 6054664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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192
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193
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Baumgardt E, Smith SW. [Comparison of the sensitivity of the cones and rods of the human eye]. COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L'ACADEMIE DES SCIENCES. SERIE D: SCIENCES NATURELLES 1967; 264:3041-4. [PMID: 4965084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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194
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Smith SW. Roentgen findings in homocystinuria. THE AMERICAN JOURNAL OF ROENTGENOLOGY, RADIUM THERAPY, AND NUCLEAR MEDICINE 1967; 100:147-54. [PMID: 6023889 DOI: 10.2214/ajr.100.1.147] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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195
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Smith SW. Sliding hiatus hernia. Postgrad Med 1967; 41:A-79-84. [PMID: 6042380 DOI: 10.1080/00325481.1967.11696188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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196
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Baumgardt E, Smith SW. Facilitation effect of background light on target detection: a test of theories of absolute threshold. Vision Res 1966; 5:299-312. [PMID: 5905871 DOI: 10.1016/0042-6989(65)90006-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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197
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Baumgardt E, Smith SW. Reply to Nachmias concerning interpretation of a study to test theories of absolute threshold. Vision Res 1966; 6:117-8. [PMID: 5938537 DOI: 10.1016/0042-6989(66)90023-x] [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: 01/17/2023]
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198
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199
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200
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Smith SW. Late News. West J Med 1948. [DOI: 10.1136/bmj.1.4558.955-b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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