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Cerrito Luca Felice,Battisti Valentina,Malagò Roberto,Mansueto Giancarlo,Rossi Andrea 아시아심장혈관영상의학회 2019 Cardiovascular Imaging Asia Vol.3 No.3
An anomalous origin of the coronary artery is rarely seen in clinical practice, and left coronary artery arising from the right coronary artery is an extremely rare anomalous coronary anomaly. Echocardiographic assessment of coronary arteries is an important component of routine cardiovascular evaluation, but detection of an anomalous coronary origin remains a challenge to operators. We report a case of a 42-year-old women presenting to the hospital with atypical chest pain for whom echocardiographic evaluation revealed a coronary artery anomaly.
Silvia Franchini,Umberto M. Battisti,Claudia Sorbi,Annalisa Tait,Andrea Cornia,정낙신,이상국,송자영,Roberta Loddo,Silvia Madeddu,Giuseppina Sanna,Livio Brasili 대한약학회 2017 Archives of Pharmacal Research Vol.40 No.5
Nucleoside analogues play an important role inantiviral, antibacterial and antineoplastic chemotherapy. Herein we report the synthesis, structural characterizationand biological activity of some 40-C-methyl- and -phenyldioxolane-based nucleosides. In particular, a and banomers of all natural nucleosides were obtained andcharacterized by NMR, HR-MS and X-ray crystallography. The compounds were tested for antimicrobial activityagainst some representative human pathogenic fungi, bacteriaand viruses. Antitumor activity was evaluated in alarge variety of human cancer cell-lines. Although most ofthe compounds showed non-significant activity, 23aweakly inhibited HIV-1 multiplication. Moreover, 22a and32a demonstrated a residual antineoplastic activity, interestinglylinked to the unnatural a configuration. Theseresults may provide structural insights for the design ofactive antiviral and antitumor agents.
Tropical forcing of the recent rapid Arctic warming in northeastern Canada and Greenland
Ding, Qinghua,Wallace, John M.,Battisti, David S.,Steig, Eric J.,Gallant, Ailie J. E.,Kim, Hyung-Jin,Geng, Lei Nature Publishing Group, a division of Macmillan P 2014 Nature Vol.509 No.7499
Rapid Arctic warming and sea-ice reduction in the Arctic Ocean are widely attributed to anthropogenic climate change. The Arctic warming exceeds the global average warming because of feedbacks that include sea-ice reduction and other dynamical and radiative feedbacks. We find that the most prominent annual mean surface and tropospheric warming in the Arctic since 1979 has occurred in northeastern Canada and Greenland. In this region, much of the year-to-year temperature variability is associated with the leading mode of large-scale circulation variability in the North Atlantic, namely, the North Atlantic Oscillation. Here we show that the recent warming in this region is strongly associated with a negative trend in the North Atlantic Oscillation, which is a response to anomalous Rossby wave-train activity originating in the tropical Pacific. Atmospheric model experiments forced by prescribed tropical sea surface temperatures simulate the observed circulation changes and associated tropospheric and surface warming over northeastern Canada and Greenland. Experiments from the Coupled Model Intercomparison Project Phase 5 (ref. 16) models with prescribed anthropogenic forcing show no similar circulation changes related to the North Atlantic Oscillation or associated tropospheric warming. This suggests that a substantial portion of recent warming in the northeastern Canada and Greenland sector of the Arctic arises from unforced natural variability.