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Nichols S, Waters WE. Effect on doctors' work load of a campaign to encourage early reporting of breast symptoms. J Epidemiol Community Health 1982; 36:228-30. [PMID: 7142890 PMCID: PMC1052218 DOI: 10.1136/jech.36.3.228] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A public health education campaign to encourage early reporting of breast symptoms was held in Southampton during February 1981. General practitioners kept a record of women Consulting them about breast symptoms. The results were confounded by a recording behaviour effect but provided no evidence of a pronounced increase in their work load. There was no overall increase in hospital outpatient work load.
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102
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Waters WE, Nichols S. Breast cancer: women's knowledge and attitudes and the difficulties of influencing them. COMMUNITY MEDICINE 1982; 4:173-80. [PMID: 7140233 DOI: 10.1007/bf02548807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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103
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Barranco SC, May JT, Boerwinkle W, Nichols S, Hokanson KM, Schumann J, Göhde W, Bryant J, Guseman LF. Enhanced cell killing through the use of cell kinetics-directed treatment schedules for two-drug combinations in vitro. Cancer Res 1982; 42:2894-8. [PMID: 6177399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Kinetics-directed drug treatment schedules were tested in Chinese hamster ovary cells. Ten hr after treatment with 1,2:5,6-dianhydrogalactitol (DAG) (at a dose lethal to less than 5% of the cells), a 150% enrichment of cells into the S phase of the cell cycle was observed. This blockade in S phase was reversible and was followed at 18 hr after an exposure to DAG by a 200% increase in the fraction of cells in the G2-M phases of the cell cycle. Bleomycin, known to be most effective against G2 + M cells, had the greatest effect on cell killing when administered at that time. Rapid analysis by flow microfluorometry techniques was used to determine the DAG-induced kinetics changes, thus allowing treatment with the second drugs at the most opportune time. The DAG-induced kinetics changes were also demonstrated in a line of human adenocarcinoma of the stomach in vitro and in Ehrlich ascites tumor cells in vivo. In all cases, the enrichment of cells into S phase was reversible at the doses used and was followed by a reversible blockade in G2-M.
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104
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Wallace D, Goldfinger D, Lowe C, Nichols S, Weiner J, Brachman M, Klinenberg JR. A double-blind, controlled study of lymphoplasmapheresis versus sham apheresis in rheumatoid arthritis. N Engl J Med 1982; 306:1406-10. [PMID: 7043264 DOI: 10.1056/nejm198206103062307] [Citation(s) in RCA: 81] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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105
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Hoyumpa AM, Strickland R, Sheehan JJ, Yarborough G, Nichols S. Dual system of intestinal thiamine transport in humans. THE JOURNAL OF LABORATORY AND CLINICAL MEDICINE 1982; 99:701-8. [PMID: 6279749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The transport of thiamine across the intestine has been characterized in rats but has not been adequately studied in humans. To determine the kinetics of thiamine intestinal transport directly in humans, mucosal tissues were obtained during routine endoscopy from normal-appearing sites at the second portion of the duodenum. With 3H-dextran as the marker of adherent volume, the uptake of 14C-thiamine hydrochloride by the excised mucosa was measured in vitro. By this method thiamine uptake was linear with tissue weight and with incubation time up to 5 min. Results showed that at low thiamine concentrations (0.2 to 2.0 microM), uptake was saturable whereas at high concentrations (5 to 50 microM), uptake was linear with thiamine concentrations. Pyrithiamine, anoxia, N-ethylmaleimide, and replacement of sodium chloride by mannitol reduced the uptake of 0.5 microM thiamine by 42%, 37%, 32% and 35%, respectively (p less than 0.05) but had no effect on the uptake of 20 microM thiamine. These data suggest that, as in the rat, the intestinal transport of thiamine in humans proceeds by a coexistent dual system. At physiologic concentrations, thiamine is transported primarily by an energy-requiring, sodium-dependent active process, whereas at higher pharmacologic concentrations thiamine uptake is predominantly a passive process.
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106
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Christmas P, Nichols S. 'Don't take a chance': a public campaign to encourage the early reporting of breast symptoms. HEALTH EDUCATION JOURNAL 1982; 41:61-68. [PMID: 10256646 DOI: 10.1177/001789698204100207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
As part of a study to evaluate health education about breast cancer, a campaign to encourage the early reporting of breast symptoms was organised jointly by Community Medicine, University of Southampton and Southampton Health Education Service. A thorough account of all aspects of the preparation and implementation of the campaign is presented. It is hoped that other organisations, considering a similar campaign, could utilise the materials specially produced to convey our message and benefit from our experiences.
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107
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Nichols S. Mastectomy: personal experience-breast cancer. NURSING MIRROR 1981; 153:46-8. [PMID: 6915528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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108
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Nichols S, Waters WE, Fraser JD, Wheeller MJ, Ingham SK. Delay in the presentation of breast symptoms for consultant investigation. COMMUNITY MEDICINE 1981; 3:217-25. [PMID: 7273693 DOI: 10.1007/bf02549119] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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109
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Barranco SC, Shilkun K, Nichols S, Boerwinkle WR, Adams EG, Bhuyan BK. Changes in DNA distributions and ploidy of CHO cells as a function of time in culture. IN VITRO 1981; 17:730-4. [PMID: 7327601 DOI: 10.1007/bf02628410] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Chinese hamster ovary (CHO) cells maintained in continuous culture for 3 to 5 months may undergo subtle changes in drug sensitivity response, growth kinetics, plating efficiencies, et cetera. Our studies done independently in two different laboratories, using flow cytometry, indicate that the DNA histogram patterns change at about 11 wk, from populations with an approximate diploid DNA content to populations also composed of triploid and tetraploid cells. Chromosome counts also change from distributions of 21 to 22 to populations of cells having 21 to 22, 34 to 35 and 44 to 46 chromosomes. These alterations occur earlier (at 8 to 9 wk) in cell populations previously treated with anticancer drugs.
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110
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Hoyumpa AM, Patwardhan R, Antonson D, Nichols S, Gray JP. Effect of thiamin deficiency and acute ethanol ingestion on jejunal glucose transport in rats. Am J Clin Nutr 1981; 34:14-9. [PMID: 7192487 DOI: 10.1093/ajcn/34.1.14] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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111
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Stein EA, Glueck CJ, Wesselman A, Owens ER, Nichols S, Vink P. Repetitive intermittent flow plasma exchange in patients with severe hypercholesterolemia. Atherosclerosis 1981; 38:149-64. [PMID: 7470196 DOI: 10.1016/0021-9150(81)90112-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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112
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Nichols S. BAD news...for hospital costs. TIMES 1980; 21:16-8. [PMID: 10248863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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113
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Nichols S, Waters WE, Wheeler MJ. Management of female breast disease by Southampton general practitioners. BRITISH MEDICAL JOURNAL 1980; 281:1450-3. [PMID: 7437833 PMCID: PMC1714813 DOI: 10.1136/bmj.281.6253.1450] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
One hundred and two Southampton general practitioners were interviewed about female breast disease. There was agreement about clinical management and the need to both teach and promote breast self-examination. The general practitioners, however, were divided as to whether any breast screening facilities were needed in Southampton. Records kept by the general practitioners of women seen with breast symptoms showed that one-quarter of all new episodes were referred to hospital at the first visit. That the general practitioners considered early diagnosis to be important was made evident from a number of the results. This attitude is encouraging in view of the evidence showing that long-term survival may be greater when delays are shorter.
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114
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Hoyumpa AM, Desmond PV, Roberts RK, Nichols S, Johnson RF, Schenker S. Effect of ethanol on benzodiazepine disposition in dogs. THE JOURNAL OF LABORATORY AND CLINICAL MEDICINE 1980; 95:310-22. [PMID: 7354238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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115
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Podleski TR, Nichols S, Ravdin P, Salpeter MM. Cloned myogenic cells during differentiation: membrane biochemistry and fine structural observations. Dev Biol 1979; 68:239-58. [PMID: 220120 DOI: 10.1016/0012-1606(79)90256-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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116
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Nichols S. Why the union was rejected at Morristown-Hamblen Hospital. TIMES 1978; 20:3-6. [PMID: 10239992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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117
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Nichols S. Tennessee hospitals acting to shape public opinion. TIMES 1978; 19:2-5. [PMID: 10308013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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118
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Hoyumpa AM, Nichols S, Henderson GI, Schenker S. Intestinal thiamin transport: effect of chronic ethanol administration in rats. Am J Clin Nutr 1978; 31:938-45. [PMID: 149496 DOI: 10.1093/ajcn/31.6.938] [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: 12/13/2022] Open
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119
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Nichols S. To market, to market, to sell a hospital. TIMES 1978; 19:3-6. [PMID: 10306036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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120
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Kleerekoper M, Coffey R, Creco T, Nichols S, Cooke N, Murphy W, Avioli LV. Hypercalcemic hyperparathyroidism in hypophosphatemic rickets. J Clin Endocrinol Metab 1977; 45:86-94. [PMID: 874068 DOI: 10.1210/jcem-45-1-86] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A 25-year-old white woman with sporadic hypophosphatemic rickets presented with a 7 year history of chronic mild hypercalcemia, osteitis fibrosa cystic and hypercalcemic nephropathy. Serum immunoreactive parathyroid hormone was elevated by greater than 100-fold and a 3.5 g parathyroid tumor was found at operation. Survey of the literature reveals that of 9 previous cases in which hypercalcemic hyperparathyroidism occurred in association with hypophosphatemic rickets, only two had classical x-linked familial hypophosphatemic rickets. It appears more than likely that this unusual combination of skeletal diseases represents the chance occurrence of primary hyperparathyroidism in patients with underlying x-linked familial hypophosphatemic rickets rather than a complication of phosphate therapy.
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121
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Abstract
Disseminated Nocardia caviae infection occurs only rarely. To date, two cases have been recorded in the literature. We describe a third case of systemic N. caviae infection in a compromised host and compare it with the first two cases. Postmortem, microbiologic and antibiotic sensitivity data are included.
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122
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Hoyumpa AM, Nichols S, Schenker S, Wilson FA. Thiamine transport in thiamine-deficient rats. Role of the unstirred water layer. BIOCHIMICA ET BIOPHYSICA ACTA 1976; 436:438-47. [PMID: 1276223 DOI: 10.1016/0005-2736(76)90206-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
As part of a systematic study of alcoholism and thiamine absorption, the effect of diet-induced thiamine deficiency and the role of the unstirred water layer on the thiamine transport were investigated. Using 3H-labeled dextran as a marker of adherent mucosal volume, jejunal uptake of 14C-labeled thiamine hydrochloride was measured, in vitro, in thiamine-deficient rats and pair-fed controls. Uptake of low thiamine concentrations (0.2 and 0.5 muM) was greater in the thiamine-deficient rats than in the controls. In contrast, uptake rates for high thiamine concentrations (20 and 50 muM) were similar in both groups. While Jmax was unaltered, Km was decreased in thiamine deficiency, suggesting a decrease in unstirred water layer thickness. Accordingly, the thickness of the water layer was measured in both groups of animals and correlated with Jmax and Km under unstirred and stirred conditions. Without stirring, there was no difference in Jmax between the two groups. In contrast, both Km and the water layer were reduced in the thiamine-deficient rats. With stirring, Jmax was not affected, but both Km and the water layer thickness were reduced to similar values in both groups. Reversal of thiamine deficiency resulted in the return of thiamine uptake and the unstirred water layer thickness to control values. These data support the concept of a dual system of thiamine transport and emphasize the role of the unstirred water layer as an important determinant of transport kinetics not only under physiologic situations but also in diet-induced rat thiamine deficiency, a model for a clinical patholigical state. The decrease in the unstirred water layer thickness in thiamine deficiency may be also viewed as a possible adaptive mechanism to facilitate absorption of meager supplies of thiamine.
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