Phytochemicals, Trace Element Contents, and Antioxidant Activities of Bark of Taleh (Acacia seyal) and Desert Rose (Adenium obesum)

Author(s):  
Mohamed H. A. Suleiman ◽  
Eid I. Brima
2018 ◽  
Vol 1 (1) ◽  
pp. 1-13

Background: Thyroid cancer is an internationally important health problem. The aim of this exploratory study was to evaluate whether significant changes in the thyroid tissue levels of Ag, Co, Cr, Fe, Hg, Rb, Sb, Sc, Se, and Zn exist in the malignantly transformed thyroid. Methods: Thyroid tissue levels of ten trace elements were prospectively evaluated in 41 patients with thyroid malignant tumors and 105 healthy inhabitants. Measurements were performed using non-destructive instrumental neutron activation analysis with high resolution spectrometry of long-lived radionuclides. Tissue samples were divided into two portions. One was used for morphological study while the other was intended for trace element analysis. Results: It was found that contents of Ag, Co, Cr, Hg, and Rb were significantly higher (approximately 12.8, 1.4, 1.6, 19.6, and 1.7 times, respectively) in cancerous tissues than in normal tissues. Conclusions: There are considerable changes in trace element contents in the malignantly transformed tissue of thyroid.


Urolithiasis ◽  
1989 ◽  
pp. 229-231
Author(s):  
J. Hofbauer ◽  
I. Steffan ◽  
H. Schwetz ◽  
G. Vujicic ◽  
O. Zechner

2016 ◽  
Vol 39 (5) ◽  
pp. 1159-1177 ◽  
Author(s):  
R. Jiménez-Ballesta ◽  
F. J. García-Navarro ◽  
S. Bravo ◽  
J. A. Amorós ◽  
C. Pérez-de-los-Reyes ◽  
...  

2011 ◽  
Vol 184 (7) ◽  
pp. 4517-4538 ◽  
Author(s):  
Uwe Buczko ◽  
Rolf O. Kuchenbuch ◽  
Walter Übelhör ◽  
Ludwig Nätscher

1997 ◽  
Vol 61 (405) ◽  
pp. 257-269 ◽  
Author(s):  
Suzanne Y. O'Reilly ◽  
D. Chen ◽  
W. L. Griffin ◽  
C. G. Ryan

AbstractThe proton microprobe has been used to determine contents of Ca, Ti, Ni, Mn and Zn in the olivine of 54 spinel lherzolite xenoliths from Australian and Chinese basalts. These data are compared with proton-probe data for Ni, Mn and Zn in the olivine of 180 garnet peridotite xenoliths from African and Siberian kimberlites. Fe, Mn, Ni and Zn contents are well-correlated; because the spinel lherzolite olivines have higher mean Fe contents than garnet peridotite olivines (average Fo89.6vs. Fo90–92) they also have lower Ni and higher Mn contents. Zn and Fe are well-correlated in garnet peridotite olivine, but in spinel peridotites this relationship is perturbed by partitioning of Zn into spinel. None of these elements shows significant correlation with temperature. Consistent differences in trace-element contents of olivines in the two suites is interpreted as reflecting the greater degree of depletion of Archean garnet peridotites as compared to Phanerozoic spinel lherzolites. Ca and Ti contents of spinel-peridotite olivine are well correlated with one another, and with temperature as determined by several types of geothermometer. However, Ca contents are poorly correlated with pressure as determined by the Ca-in-olivine barometer of Köhler and Brey (1990). This reflects the strong T-dependence of this barometer: the uncertainty in pressure (calculated by this method) which is produced by the ±50°C uncertainty expected of any geothermometer is ca ± 8 kbar, corresponding to the entire width of the spinel-lherzolite field at 900–1200°C.


2013 ◽  
pp. 1-18
Author(s):  
Paolo Censi ◽  
E. Tamburo ◽  
L. A. Randazzo ◽  
Pierpaolo Zuddas ◽  
Angela Cuttitta ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document