scholarly journals Recent advances upper gastrointestinal lymphomas: molecular updates and diagnostic implications

2020 ◽  
Vol 78 (1) ◽  
pp. 187-214
Author(s):  
Periklis G Foukas ◽  
Bettina Bisig ◽  
Laurence Leval
Keyword(s):  
Recent Advances ◽  
Gastrointestinal Lymphomas ◽  
Upper Gastrointestinal

Recent advances and future challenges in the treatment of upper gastrointestinal malignancies

2012 ◽  
Vol 5 (2) ◽  
pp. 157-160
Author(s):  
Dieter Koeberle ◽  
Anna Dorothea Wagner
Keyword(s):  
Gastrointestinal Malignancies ◽  
Recent Advances ◽  
Future Challenges ◽  
Upper Gastrointestinal

scholarly journals NON-VARICEAL UPPER GASTROINTESTINAL BLEEDING RECENT GUIDELINES, RISK STRATIFICATION AND PARADIGMS

2017 ◽  
Vol 64 (1) ◽  
pp. 77-81
Author(s):  
Ahed El-Khatib ◽  
◽  
Catalin Alius ◽  
Dragos Serban ◽  
◽  
...  
Keyword(s):  
Risk Stratification ◽  
Gastrointestinal Bleeding ◽  
Upper Gastrointestinal Bleeding ◽  
Scoring Systems ◽  
Point Of View ◽  
Pharmacological Agents ◽  
Mortality And Morbidity ◽  
Endoscopic Techniques ◽  
Recent Advances ◽  
Upper Gastrointestinal

Despite recent advances in the treatment of upper gastrointestinal bleeding (UGI) lesions, mortality and morbidity have remained high. The introduction of scoring systems and novel endoscopic techniques have improved patients outcomes. Although guidelines for managing UGIB have been developed they have not been implemented ubiquitously. The authors offer a point of view in relation to the management of the non variceal UGIB with emphasis on the risk stratification, paradigms that have suffered changes or have been revalidated over the years, newly introduced pharmacological agents and timing of endoscopy.

Recent Advances in High Dispersion Spectroscopy of Globular Cluster Stars

1988 ◽  
Vol 132 ◽  
pp. 525-530
Author(s):  
Raffaele G. Gratton
Keyword(s):  
Globular Cluster ◽  
Globular Clusters ◽  
High Dispersion ◽  
Photographic Material ◽  
Recent Advances ◽  
Metal Abundances ◽  
Ccd Detectors ◽  
Major Progress

The use CCD detectors has allowed a major progress in abundance derivations for globular cluster stars in the last years. Abundances deduced from high dispersion spectra now correlates well with other abundance indicators. I discuss some problems concerning the derivation of accurate metal abundances for globular clusters using high dispersion spectra from both the old photographic and the most recent CCD data. The discrepant low abundances found by Cohen (1980), from photographic material for M71 giants, are found to be due to the use of too high microturbulences.

The rod-to-coccoid body transformation in cultures of Helicobacter pylori

1990 ◽  
Vol 48 (3) ◽  
pp. 626-627
Author(s):  
A. R. Crooker ◽  
W. G. Kraft ◽  
T. L. Beard ◽  
M. C. Myers
Keyword(s):  
Helicobacter Pylori ◽  
Growth Cycle ◽  
Negative Bacterium ◽  
Body Formation ◽  
Coccoid Form ◽  
Spiral Form ◽  
Prolonged Culture ◽  
H Pylori ◽  
Upper Gastrointestinal

Helicobacter pylori is a microaerophilic, gram-negative bacterium found in the upper gastrointestinal tract of humans. There is strong evidence that H. pylori is important in the etiology of gastritis; the bacterium may also be a major predisposing cause of peptic ulceration. On the gastric mucosa, the organism exists as a spiral form with one to seven sheathed flagella at one (usually) or both poles. Short spirals were seen in the first successful culture of the organism in 1983. In 1984, Marshall and Warren reported a coccoid form in older cultures. Since that time, other workers have observed rod and coccal forms in vitro; coccoid forms predominate in cultures 3-7 days old. We sought to examine the growth cycle of H. pylori in prolonged culture and the mode of coccoid body formation.

Chelation-assisted transition metal-catalysed C–H chalcogenylations

2020 ◽  
Vol 7 (8) ◽  
pp. 1022-1060 ◽  
Author(s):  
Wenbo Ma ◽  
Nikolaos Kaplaneris ◽  
Xinyue Fang ◽  
Linghui Gu ◽  
Ruhuai Mei ◽  
...  
Keyword(s):  
Transition Metal ◽  
Recent Advances ◽  
Site Selectivity ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

This review summarizes recent advances in C–S and C–Se formations via transition metal-catalyzed C–H functionalization utilizing directing groups to control the site-selectivity.

Nucleosome dynamics

2006 ◽  
Vol 73 ◽  
pp. 109-119 ◽  
Author(s):  
Chris Stockdale ◽  
Michael Bruno ◽  
Helder Ferreira ◽  
Elisa Garcia-Wilson ◽  
Nicola Wiechens ◽  
...  
Keyword(s):  
High Resolution ◽  
Chromatin Structure ◽  
Current Knowledge ◽  
Dynamic Properties ◽  
Structure And Dynamics ◽  
Nucleosome Dynamics ◽  
Sharp Focus ◽  
Recent Advances ◽  
Insight Into ◽  
Chromatin Structure And Dynamics

In the 30 years since the discovery of the nucleosome, our picture of it has come into sharp focus. The recent high-resolution structures have provided a wealth of insight into the function of the nucleosome, but they are inherently static. Our current knowledge of how nucleosomes can be reconfigured dynamically is at a much earlier stage. Here, recent advances in the understanding of chromatin structure and dynamics are highlighted. The ways in which different modes of nucleosome reconfiguration are likely to influence each other are discussed, and some of the factors likely to regulate the dynamic properties of nucleosomes are considered.

Endoscopic ultrasonography in the diagnosis and management of suspected upper gastrointestinal submucosal tumours

2002 ◽  
Vol 89 (2) ◽  
pp. 231-235
Author(s):  
E. F Shen ◽  
I. D. R Arnott ◽  
J Plevris ◽  
I. D Penman
Keyword(s):  
Endoscopic Ultrasonography ◽  
Diagnosis And Management ◽  
Upper Gastrointestinal
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