Geochemistry of the Archean low- to high-grade transition zone, Southern India

1982 ◽  
Vol 81 (3) ◽  
pp. 157-167 ◽  
Author(s):  
Kent C. Condie ◽  
Philip Allen ◽  
B. L. Narayana
Keyword(s):  
Transition Zone ◽  
Southern India ◽  
High Grade ◽  
Grade Transition

scholarly journals Dichotomy in Growth and Invasion From Low to High Grade Glioma Cellular Variants 

2021 ◽  
Author(s):  
Krishnendu Ghosh ◽  
Samarandranath Ghosh ◽  
Uttara Chatterjee ◽  
Pritha Bhattacharjee ◽  
Anirban Ghosh
Keyword(s):  
Tumor Tissue ◽  
High Grade Glioma ◽  
High Grade ◽  
General Increase ◽  
Grade Transition ◽  
Median Survival Period ◽  
Neoplastic Lesion ◽  
Tightly Coupled ◽  
Glial Dysfunction ◽  
Environmental Milieu

Abstract Glial dysfunction outraging CNS plasticity and integrity results into one of the most dangerous cancer, namely glioma, featuring little median survival period and high recurrence. The hallmark properties of proliferation, invasion and angiogenesis with the infiltrated macrophages in glioma are expected to be tightly coupled or cross-linked, but not definitely related so far. Present study is aimed to find a relationship between this featured quadrangle from lower to higher grades of post-operative glioma tissues and their invading subsets. Elevated Ki67 associated proliferation in lower grades was supported with VEGF dependent angiogenic maintenance which found decrease unlikely in higher grades. In contrast, MMP-2 and 9 associated invasions augmented high in higher grades with dominant presence of CD204+ M2 polarized macrophages and a general increase in global DNMT1 associated methylation. Marked differences found in ECM invading cellular subsets of higher grades showing high proliferative capacity indicating rationally for recurrence, contrasting the nature of gross tumor tissue of same grade. Thus in lower grades the neoplastic lesion is more inclined for its growth while in higher grade more disposed towards tissue wreckage in support with cellular environmental milieu whereas the cellular variants and subsets of invaded cells showed different trends. Therefore, some operational dichotomy or coupling among cellular variants in glioma is active in determining its low to high grade transition and aggressive progression.

Origin of granites in an Archean high-grade terrane, southern India

1986 ◽  
Vol 92 (1) ◽  
pp. 93-103 ◽  
Author(s):  
K. C. Condie ◽  
G. P. Bowling ◽  
P. Allen
Keyword(s):  
Southern India ◽  
High Grade

scholarly journals Constraints on the timing and conditions of high-grade metamorphism, charnockite formation and fluid-rock interaction in the Trivandrum Block, southern India

2016 ◽  
Vol 34 (6) ◽  
pp. 527-549 ◽  
Author(s):  
E. Blereau ◽  
C. Clark ◽  
R. J. M. Taylor ◽  
T. E. Johnson ◽  
I. C. W. Fitzsimons ◽  
...  
Keyword(s):  
Southern India ◽  
High Grade ◽  
Rock Interaction ◽  
Grade Metamorphism ◽  
High Grade Metamorphism

Pressure-temperature-time evolution of ultrahigh-temperature granulites from the Trivandrum Block, southern India: Implications for long-lived high-grade metamorphism

2019 ◽  
Vol 54 (5) ◽  
pp. 3041-3059 ◽  
Author(s):  
Hikaru Kadowaki ◽  
Toshiaki Tsunogae ◽  
Xiao-Fang He ◽  
M. Santosh ◽  
Yusuke Takamura ◽  
...  
Keyword(s):  
Time Evolution ◽  
Southern India ◽  
High Grade ◽  
Grade Metamorphism ◽  
High Grade Metamorphism ◽  
Ultrahigh Temperature ◽  
Temperature Time
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