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iPSC: 2D CELL CULTURE OPTIMIZATION FOR LARGE-SCALE PRODUCTION OF INDUCED PLURIPOTENT STEM CELLS. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00392-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Insights in the Mode of Action of a T Cell Bispecific Antibody in Tumour Bearing Mice. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz450.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract PD2-16: Risk of breast cancer after a false-positive screening mammogram in relation to mammographic abnormality: A population-based study in British Columbia. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-pd2-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Breast cancer screening by mammography has been shown to reduce breast cancer mortality, however false positive recall rates have consistently been identified as a harm of organized screening. The extent to which these recalled women are at increased risk of future breast cancer remains unclear.
Methods
The British Columbia Cancer Agency Screening Mammography Program (SMP), the first organized breast screening program in Canada offers screening mammography for women aged 40-74 since 1988. All women who had two or more screening mammograms between1988-2013 within the SMP were included in the study. They were followed until a breast cancer diagnosis, last screen date +5 years, or end of follow-up on Dec 31, 2013, whichever came first. The relative risk (RR) of breast cancer for women with a false-positive test compared with women with negative tests was estimated with Poisson regression, adjusted for age, and five calendar periods.
Results
A total of 772,289 women with 4.82 million screening mammograms and a median follow up of 11.8 years were included. There were 238,860 women with false positive findings and 26,950 cancers of which 16,084 screen detected and 10,866 non screen detected. Women without any false positive mammogram had a cancer incidence rate of 245/100 000 person-years at risk, whereas women with a false-positive test had an absolute rate of 447/100 000 person-years at risk. The adjusted RR [Value (95% CI)] of breast cancer after the first false-positive test was 1.73(1.68-1.77) for all, 1.65(1.61-1.70) for invasive, and 2.13(2.01-2.27) for in situ cancers respectively. The RR remained increased beyond 8 years after the false-positive test. Of the 5157 screen detected cancers after the first false positive test, 3358 (65%) were on the ipsilateral breast while 1799 (35%) were on the contralateral breast. Women with only one, two, three or four+ false positive test(s) had RR of 1.88(1.83-1.93), 1.42(1.35-1.49), 1.17(1.05-1.30), and 1.08(0.87-1.34) respectively for all cancers. Women with breast density >50% at the time of false positive test had a twofold risk of breast cancer with a RR of 2.07(1.99-2.14), while those with breast density <50% had a RR of 1.58(1.54-1.63). When stratified for mammographic features found on the first false positive mammogram, architectural distortion plus mass had the highest RR 4.68(3.16-6.93) for invasive cancers while calcifications alone and calcifications plus asymmetry had highest RR 5.57(4.88-6.36) and 4.07(2.49-6.66) for in situ cancers.
Conclusion
False positive mammogram correlates with an increased risk of developing breast cancer. 65% of the screen detected breast cancers post false positive mammogram occur in the ipsilateral breast. Mammographic abnormality features of the false positive mammogram are found to be predictors for the type of future breast cancer. Mammographic features at the time of recall predicts risk of subsequent cancer and may warrant increased surveillance.
Citation Format: Rajapakshe R, Miao H, Sam J, Farnquist B, Hartman M. Risk of breast cancer after a false-positive screening mammogram in relation to mammographic abnormality: A population-based study in British Columbia [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr PD2-16.
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82 Eliciting the Minimal Clinically Important Difference in the Pain Response from Parents of Newborn Infants and Nurses. Paediatr Child Health 2004. [DOI: 10.1093/pch/9.suppl_a.44aa] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
Retrograde coronary sinus reperfusion with warm blood during proximal anastomoses permits completion of myocardial revascularization under a single cross-clamp application. Reperfusion with both antegrade (via arterial and vein grafts) and retrograde (via coronary sinus catheter) warm blood has raised concerns about maldistribution of perfusate or overpressurization of capillary beds. This prospective, randomized design compares postcardioplegic myocardial recovery among patients receiving retrograde reperfusion only and patients receiving simultaneous antegrade/retrograde reperfusion. Twenty-four patients were selected among all presenting as outpatients for elective coronary artery bypass (CAB). Each patient underwent CAB with cardioplegic arrest and single cross-clamp technique. During proximal anastomoses the heart was reperfused with warm blood from the cardiopulmonary bypass (CPB) circuit. Twelve received retrograde reperfusion only, and 12 received simultaneous antegrade/retrograde reperfusion via an internal mammary artery (IMA) graft, all vein grafts, and the coronary sinus catheter. Vein graft perfusion was interrupted in each vein as the proximal anastomosis was performed. Myocardial recovery time (interval from initiating reperfusion until electrical and mechanical activity), cardioversion incidence, requirement for inotropic support, and Swan-Ganz hemodynamic parameters measured immediately 6 and 24 hours postoperatively were compared between groups. There were no differences between groups in age, ventricular function, number of grafts, or CPB time. Also, there were no differences in cardioversion, inotropic need, or postoperative hemodynamic performance. Myocardial recovery time was reduced in patients receiving simultaneous antegrade/retrograde reperfusion (13.9+/-7.0 vs 2.6+/-2.1 minutes). Simultaneous reperfusion of warm blood antegrade and retrograde is not deleterious to the myocardium. More rapid recovery of myocardial function may represent a shorter period of warm ischemia but does not appear to translate to improved postoperative myocardial performance.
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Abstract
Hypothermia is a common unplanned occurrence in many patients undergoing repair of thoracic and thoracoabdominal aneurysms. Many undesirable side effects of hypothermia have been documented, including decreased cardiac output, conduction abnormalities, and blood coagulopathies. We have developed a simple system that incorporates a Sci-Med Biotherm heat exchanger into our left heart bypass circuit. This provides us with the ability to actively rewarm the patient safely and efficiently. This study looks at 16 consecutive patients undergoing repair of thoracic or thoracoabdominal aneurysms. In the 9 patients in whom the heat exchanger was used, there were no adverse effects related to the heat exchanger. All patients had significantly higher temperatures at the conclusion of the procedure than the 7 patients in whom the heat exchanger was not used.
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Phase I and pharmacokinetic evaluation of thiotepa in the cerebrospinal fluid and plasma of pediatric patients: evidence for dose-dependent plasma clearance of thiotepa. Cancer Res 1989; 49:736-41. [PMID: 2491958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A Phase I trial of thiotepa (TT) administered as an i.v. bolus was performed in 19 children with refractory malignancies. The starting dose was 25 mg/m2 with escalations to 50, 65, and 75 mg/m2. Seven additional patients were treated with 8-h infusions at 50 or 65 mg/m2. The maximum tolerated bolus dose was 65 mg/m2. Reversible myelosuppression was the dose-limiting toxicity. The plasma and cerebrospinal fluid (CSF) pharmacokinetic parameters of TT and its major active metabolite tepa (TP) were also evaluated. When the bolus or infusion methods of TT administration were compared, there was little difference observed in any pharmacokinetic parameter for either TT or TP. The plasma disappearance of TT was rapid and biphasic with half-lives of 0.14 to 0.32 and 1.34 to 2.0 h. Dose-dependent pharmacokinetics was demonstrated by steadily declining plasma clearance with increasing TT dose. Clearance values declined from 28.6 liters/m2/h at the 25-mg/m2 dose to 11.9 liters/m2/h at the 75-mg/m2 dose. The half-life of TP was longer than that of TT and ranged between 4.3 and 5.6 h. There was evidence of the saturation of TP production. TT and TP both exhibited excellent penetration into the CSF, producing lumbar and ventricular concentrations which were nearly identical to simultaneous plasma concentrations. In one patient with a Rickham reservoir, the CSF:plasma area under the (concentration x time) curve ratios for TT and TP were 1.01 and 0.95, respectively. The above data indicate that TT can be safely administered to pediatric patients at doses higher than conventionally used. The favorable CSF penetration of TT and TP suggests that Phase II studies of TT be considered in patients with central nervous system tumors.
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Abstract
The development of order during the aging of aluminum hydroxide gel prepared by the reaction of aluminum chloride and ammonium hydroxide to a final pH of 7.0 can be monitored by differential thermal analysis. The loss fo acid reactivity upon aging is accompanied by an increase in the temperature and intensity of the dehydroxylation endotherm and an accompanying decrease in the intensity of the water of hydration endotherm. With continued aging, the thermogram develops the characteristics of a crystalline aluminum hydroxide.
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Abstract
The synthesis, structure elucidation, and pharmacological evaluation of some 3-arylquinolizidines as semirigid phenethylamines are described. Many of the derivatives posses antidepressant activity. Some anticonvulsant effects are noted.
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3-Aryl-3-hydroxyquinolizidines with potential hypotensive, antidepressant, and analgetic activity. J Med Chem 1974; 17:726-9. [PMID: 4836403 DOI: 10.1021/jm00253a013] [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: 01/12/2023]
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Reaction of 3-(chloroalkyl)-2-benzoxazolinones with amines: formation of 3-(aminoalkyl)-2-benzoxazolinones and 5-substituted-2,3,4,5-tetrahydro-1,5-benzoxazepines. J Pharm Sci 1971; 60:1370-5. [PMID: 5567587 DOI: 10.1002/jps.2600600918] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Synthesis of 2-ethyl-3-methyl-5-morpholinomethyl-4-keto-4,5,6,7-tetrahydrothionaphthene. J Pharm Sci 1969; 58:1035-6. [PMID: 5344521 DOI: 10.1002/jps.2600580835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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2-(3-biphenylyl)ethylamines: Potential cardiovascular agents. J Pharm Sci 1969; 58:952-5. [PMID: 5388039 DOI: 10.1002/jps.2600580809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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New compounds: Preparation of some esters of trihalogenated alcohols. J Pharm Sci 1969; 58:500-1. [PMID: 5787459 DOI: 10.1002/jps.2600580430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Reaction of 2-chlorobenzoxazole with anthranilic acids and 2-amino-1-naphthalenesulfonic acid. J Pharm Sci 1968; 57:1445-6. [PMID: 5677361 DOI: 10.1002/jps.2600570841] [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: 01/16/2023]
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Preparation of 2,2-Diethyl-3-(3,4,5-trimethoxybenzoyloxy)propyl carbamate. J Pharm Sci 1968; 57:707. [PMID: 5652170 DOI: 10.1002/jps.2600570440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Chemical and biological properties of some derivatives of cis- and trans-1-hydroxyquinolizidine. J Med Chem 1968; 11:353-7. [PMID: 5663628 DOI: 10.1021/jm00308a037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Potential anticancer and antiviral agents. Substituted 3-[1′(2′,3′,4′-tri-O-benzoyl-β-d-ribopyranosyl)]-2-benzoxazolinones. J Heterocycl Chem 1968. [DOI: 10.1002/jhet.5570050123] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Preparation of some N-benzylpiperidines. J Pharm Sci 1967; 56:729-31. [PMID: 6034807 DOI: 10.1002/jps.2600560614] [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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Amino derivatives of thiophene isosteres of indanone and tetralone. J Pharm Sci 1965; 54:752-6. [PMID: 5845890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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