1
|
Breast Cancer Estrogen and Progesterone Receptors: Associations with Patients' Clinical and Epidemiologic Characteristics. TUMORI JOURNAL 2018; 77:472-8. [DOI: 10.1177/030089169107700605] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A total of 1095 patients with operable breast cancer and en-rolled in a randomized clinical trial were analysed for estrogen (ER) and progesterone (PgR) receptor content of their primary tumor, and the relationships between steroid receptor status and several epidemiologic characteristics were studied. The proportion of ER+ and median ER levels increased with age: compared to women younger than 40, those aged 66 or more were approximately three times more likely to have an ER+ tumor (OR = 3.0, 95% C.I. = 1.6–5.7). This difference tended to be more marked after comparison between patients with ER > 100 fmol/mg protein and ER- within the same age groups: OR = 7.04, 95 % C.I. = 2.89–17.12. No association emerged between age and PgR. ER status and concentrations were independent of menopausal status after adjustment for age, whereas the proportion of PgR+ and PgR levels were significantly lower in postmenopausal patients of the same age. The distribution of ER and PgR profiles was similar in relation to family history of breast cancer, reproductive events and other selected epidemiologic characteristics of the patients.
Collapse
|
2
|
Electrochemical and Spectroscopic Study of Mononuclear Ruthenium Water Oxidation Catalysts: A Combined Experimental and Theoretical Investigation. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02345] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
3
|
Structural rearrangements and reaction intermediates in a di-Mn water oxidation catalyst. Phys Chem Chem Phys 2012; 14:15502-8. [DOI: 10.1039/c2cp42466e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
4
|
Acetyl group orientation modulates the electronic ground-state asymmetry of the special pair in purple bacterial reaction centers. Phys Chem Chem Phys 2011; 13:10270-9. [DOI: 10.1039/c1cp20213h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
5
|
The anticancer drug bleomycin investigated by density functional theory. MOLECULAR SIMULATION 2006. [DOI: 10.1080/08927020601101083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
6
|
|
7
|
Experimental and modeling study of the oxidation of 1-pentene at high temperature. INT J CHEM KINET 2005. [DOI: 10.1002/kin.20096] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
8
|
|
9
|
Abstract
Density functional theory has been used to investigate the nature of the oxidizing agent in the Fenton reaction. Starting from the primary intermediate [FeII(H2O)5H2O2]2+, we show that the oxygen-oxygen bond breaking mechanism has a small activation energy and could therefore demonstrate the catalytic effect of the metal complex. The O-O bond cleavage of the coordinated H2O2, however, does not lead to a free hydroxyl radical. Instead, the leaving hydroxyl radical abstracts a hydrogen from an adjacent coordinated water leading to the formation of a second Fe-OH bond and of a water molecule. Along this reaction path the primary intermediate transforms into the [FeIV(H2O)4(OH)2]2+ complex and in a second step into a more stable high valent ferryl-oxo complex [FeIV(H2O)5O]2+. We show that the energy profile along the reaction path is strongly affected by the presence of an extra water molecule located near the iron complex. The alternative intermediate [FeII(H2O)4(OOH-)(H3O+)]2+ suggested in the literature has been also investigated, but it is found to be unstable against the primary intermediate. Our results support a picture in which an FeIV-oxo complex is the most likely candidate as the active intermediate in the Fenton reaction, as indeed first proposed by Bray and Gorin already in 1932.
Collapse
|
10
|
Spontaneous formation and stability of small GaP fullerenes. PHYSICAL REVIEW LETTERS 2000; 85:4554-4557. [PMID: 11082594 DOI: 10.1103/physrevlett.85.4554] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2000] [Revised: 06/28/2000] [Indexed: 05/23/2023]
Abstract
We report the spontaneous formation of a GaP fullerene cage in ab initio molecular dynamics simulations starting from a bulk fragment. A systematic study of the geometric and electronic properties of neutral and ionized GaP clusters suggests the stability of heterofullerenes formed by a compound with zinc blende bulk structure. We find that GaP fullerenes up to 28 atoms have high symmetry, closed electronic shells, large highest occupied molecular orbital-lowest unoccupied molecular orbital energy gaps, and do not dissociate when ionized. We compare our results for GaP with those obtained by other groups for the corresponding BN clusters.
Collapse
|
11
|
Density Functional Theory Study of the Structure and 13C Chemical Shifts of Retinylidene Iminium Salts. J Phys Chem B 2000. [DOI: 10.1021/jp001739y] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
12
|
CdS Microclusters in Sodalite Frameworks of Different Composition: A Density Functional Study. J Phys Chem B 1998. [DOI: 10.1021/jp972088h] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
|
14
|
|
15
|
Ab initio molecular-dynamics study of electronic and optical properties of silicon quantum wires: Orientational effects. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:1446-1451. [PMID: 9983605 DOI: 10.1103/physrevb.53.1446] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
16
|
Ab initio molecular-dynamics study of the stability and optical properties of ultrasmall III-V hydrogenated clusters. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:5851-5857. [PMID: 9981775 DOI: 10.1103/physrevb.52.5851] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
17
|
[Preliminary findings on clinical and immunological effects of subcutaneously administered interleukin-2 + alpha-interferon combination in the treatment of advanced renal carcinoma]. RECENTI PROGRESSI IN MEDICINA 1995; 86:304-5. [PMID: 7569288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
18
|
Nature of the conduction states in the metallic molecular crystal Li(NH3)4. PHYSICAL REVIEW LETTERS 1994; 73:3133-3136. [PMID: 10057296 DOI: 10.1103/physrevlett.73.3133] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
19
|
Random-phase-approximation analysis of orbital- and magnetic-fluctuation-mediated superconductivity in a two-band Hubbard model. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:1255-1268. [PMID: 10010435 DOI: 10.1103/physrevb.49.1255] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
20
|
[Case histories of extranodal non-Hodgkin's lymphomas with primary gastrointestinal appearance]. MINERVA CHIR 1993; 48:325-30. [PMID: 8327178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Authors refer results obtained in 24 cases of primary NHL of gastrointestinal tract. These cases were observed in the period 1981-1990. All cases can be included as primary extranodal lymphomas satisfying criteria of the literature. Sixty-six per cent (16/24) had a gastric localization half cases were centrocytic-centroblastic lymphomas followed by immunoblastic, centroblastic, follicular centrocytic-centroblastic and lymphocytic-well-differentiated. In intestinal localisation (34% of cases), the most represented was lymphocytic poor-differentiated, followed by mixed centrocytic lymphoma. Therapeutic strategy was: surgery in all patients followed by chemotherapy (CHOP 14/24) or by radiotherapy plus chemotherapy (8/24). Surgery alone was adopted in 2 out 24 patients. Patients who received radiotherapy plus chemotherapy had a sandwich treatment (CVP = 4/8, CHOP = 4/8) consisting of splint course of 3 cycles followed by radiotherapy and completed with other 3 drugs cycles. Sixteen out 24 patients were valuable (4 patients were lost during the follow-up due to problems other than the disease; 4 patients are still under treatment). In the 16 valuable patients we had a complete remission (CR) with a median free-disease survival of 82 months (range: 12-116 months) by means of the primary treatment. Four out 16 patients relapsed. In these patients the free-disease survival was range 8-108 months. All patients reached a second CR by means of chemotherapy (CCNU + VIP16) or radiotherapy. No cases of second tumor insorgence was observed.
Collapse
|
21
|
Optical properties of porous silicon: A first-principles study. PHYSICAL REVIEW LETTERS 1992; 69:1272-1275. [PMID: 10047171 DOI: 10.1103/physrevlett.69.1272] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
22
|
|
23
|
Theory of ab initio molecular-dynamics calculations. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 44:6334-6347. [PMID: 9905763 DOI: 10.1103/physreva.44.6334] [Citation(s) in RCA: 107] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
24
|
Structure of hydrogenated amorphous silicon from ab initio molecular dynamics. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:5908-5911. [PMID: 9998441 DOI: 10.1103/physrevb.44.5908] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
25
|
[Neoplasms with unknown primary location]. RECENTI PROGRESSI IN MEDICINA 1990; 81:486-92. [PMID: 2247695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Neoplasms with unknown primary location (U.P.L.N.) represent an important chapter of oncological pathology which has not yet been completely defined regarding diagnostics, therapy and prognosis. U.P.L.N. recur in clinical practice in 0.5%-10% of cases and show equal sharing in both sexes: still mortality is high. This is in agreement with the biological behavior of U.P.L.N. which is that of a neoplastic illness, systemic from the onset and therefore immediately aggressive. Treatments commonly used only slightly alter the course of the disease. If the general state of the patients allows it, treatment must include every available therapeutical remedy (CHR, RDT, CHM) conveniently evaluated in every single case and preferably under the guidance of the apparent histotype and of the onset seat. The histotype of an U.P.L.N. sensibly affects the prognosis of the patient: there is an improvement in well differentiated and lodged forms and conversely, there is a sharp impairment with fast evolution in the less differentiated and variably metastasized forms. In our case-report, the U.P.L.N. rate has been 5.37% on 1786 cancer diagnoses from February 1980 until January 1988. In 65% of these cases, the histotype sustaining the pathology was represented by adenocarcinoma, in 21% by epidermoid carcinoma and in the remaining 14% by undifferentiated carcinoma. The clinical onset most frequently observed has involved the lymph nodes, followed by involvement of the serosa, bones, lungs and liver. Complex therapeutic treatments have not provided clear results, but the use of anthracyclines and cyclophosphamide seems promising. Finally, we suggest the use of immunomodulators (such as interferons, thymus hormone, lymphokines) in association with the classic chemotherapeutics.
Collapse
|
26
|
[Clinical contribution to the knowledge of retroperitoneal tumors of the pelvic excavation]. MINERVA CHIR 1990; 45:705-10. [PMID: 2388715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Two cases of primitive retroperitoneal tumors of the pelvic excavation have been reported: a neurinosarcoma and a liposarcoma. Particular, this work emphasizes the rarity of the neurinosarcoma in that seat, the atypical clinical presentation, the complex diagnostic researches performed and the problems of the differential diagnosis. In the diagnosis of these neoplasms, the Authors emphasize, the main role performed by the "classic" radiology and its most recently acquired means as (ECO, TAC, EMR). These can give precise informations about the seat and the size of the neoplasms and especially, about it's relationship with the adjacent tissues. By using these new means, other examinations some what dangerous, can be avoided. The Authors conclude that from the therapeutical point of view, surgery is still the main weapon against these neoplasms, even if sometimes it is demolishing and does not sensibly improve the prognosis. Surgery can be associated with radiotherapy and/or chemotherapy.
Collapse
|
27
|
Thermal expansion of c-Si via ab initio molecular dynamics. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 41:1680-1683. [PMID: 9993888 DOI: 10.1103/physrevb.41.1680] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
28
|
|
29
|
[Pretreatment evaluation of CA 72.4 in patients with carcinoma of the stomach (0-IV stage) versus CEA, TPA, CA 19-9, FER]. GIORNALE ITALIANO DI ONCOLOGIA 1989; 9:67-72. [PMID: 2767730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Before surgical treatments, sera of 54 pts suffering from gastric cancer, histologically typed and clinically staged (from stage 0 to 4), were assayed to evaluate CEA, TPA, CA 19-9 and Ferritin versus a new tumoral marker called TAG-72, in order to determine the biological behaviour and the relation to the clinical stage of this last one. Starting from their results, Authors say that the new marker TAG 72 has an increasing sensibility according to the clinical stage (4 th more than 1 st), and that the association of the TAG-72 plus CEA and/or TPA is rather significant in order to evaluate the evolution of the gastric cancer than other markers.
Collapse
|
30
|
[Echographic aspect of 2 rare soft-tissue neoplasms: chordoid sarcoma and neurotekeoma]. LA RADIOLOGIA MEDICA 1988; 76:502-4. [PMID: 2974598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
31
|
Multicritical behavior of a square-lattice-gas model with anisotropic repulsive interactions: A transfer-matrix scaling study. PHYSICAL REVIEW. B, CONDENSED MATTER 1987; 35:2021-2028. [PMID: 9941633 DOI: 10.1103/physrevb.35.2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
|
32
|
Proceedings: Human brainstem potentials: maturational changes in auditory transmission. ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY 1975; 39:434-5. [PMID: 51762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|