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Showing 1 to 12 of 576 entries
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Cu/Pd Synergistic Dual Catalysis: Asymmetric α-Allylation of an α-CF.

Angewandte Chemie (International ed. in English)

Saito A, Kumagai N, Shibasaki M.
PMID: 28418185
Angew Chem Int Ed Engl. 2017 May 08;56(20):5551-5555. doi: 10.1002/anie.201702113. Epub 2017 Apr 18.

Despite the burgeoning demand for fluorine-containing chemical entities, the construction of CF

Delayed disengagement of attention from snakes in children with autism.

Frontiers in psychology

Isomura T, Ogawa S, Shibasaki M, Masataka N.
PMID: 25784895
Front Psychol. 2015 Mar 03;6:241. doi: 10.3389/fpsyg.2015.00241. eCollection 2015.

In the visual search task, it is well known that detection of a tilted straight line as the target among vertical lines that act as distractors is easier than vice versa, and that detection of a snake image as...

Endogenous insulin secretion even at a very low level contributes to the stability of blood glucose control in fulminant type 1 diabetes.

Journal of diabetes investigation

Shibasaki S, Imagawa A, Terasaki J, Hanafusa T.
PMID: 24843445
J Diabetes Investig. 2010 Dec 03;1(6):283-5. doi: 10.1111/j.2040-1124.2010.00059.x.

Fulminant type 1 diabetes is characterized by almost complete β-cell destruction, resulting in scarce insulin secretion. In the present study, we aimed to clarify clinical features related to serum C-peptide levels measured by a high sensitivity method, chemiluminescent enzyme...

Adjusted Anion Gap Is Associated with Glomerular Filtration Rate Decline in Chronic Kidney Disease.

Nephron extra

Togawa A, Uyama S, Takanohashi S, Shimasaki M, Miyaji T, Endo H, Fujigaki Y.
PMID: 24348507
Nephron Extra. 2013 Nov 14;3(1):113-117. doi: 10.1159/000356461. eCollection 2013.

BACKGROUND: Metabolic acidosis is known to accelerate the progression of chronic kidney disease (CKD). However, whether undetermined anions as indicated by the adjusted anion gap (aAG) are associated with estimated glomerular filtration rate (eGFR) decline in patients with CKD...

Direct Catalytic Asymmetric Mannich-Type Reaction of α- and β-Fluorinated Amides.

Journal of the American Chemical Society

Brewitz L, Arteaga FA, Yin L, Alagiri K, Kumagai N, Shibasaki M.
PMID: 26652911
J Am Chem Soc. 2015 Dec 23;137(50):15929-39. doi: 10.1021/jacs.5b11064. Epub 2015 Dec 10.

The last two decades have witnessed the emergence of direct enolization protocols providing atom-economical and operationally simple methods to use enolates for stereoselective C-C bond-forming reactions, eliminating the inherent drawback of the preformation of enolates using stoichiometric amounts of...

Influence of restoration adjustments on prefrontal blood flow: A simplified NIRS preliminary study.

International journal of stomatology & occlusion medicine

Sasaguri K, Otsuka T, Tsunashima H, Shimazaki T, Kubo KY, Onozuka M.
PMID: 26435757
Int J Stomatol Occlusion Med. 2015;8(1):22-28. doi: 10.1007/s12548-015-0122-x. Epub 2015 Mar 27.

OBJECTIVE: The aim of this study was to examine, after setting several restorations, the influence of adjusted occlusal interference during gum chewing on blood flow in the prefrontal area as determined using near-infrared spectroscopy.MATERIAL AND METHODS: The physiological rate...

Blocking c-Met signaling enhances bone morphogenetic protein-2-induced osteoblast differentiation.

FEBS open bio

Shibasaki S, Kitano S, Karasaki M, Tsunemi S, Sano H, Iwasaki T.
PMID: 25941631
FEBS Open Bio. 2015 Apr 20;5:341-7. doi: 10.1016/j.fob.2015.04.008. eCollection 2015.

We previously demonstrated that blocking hepatocyte growth factor (HGF) receptor/c-Met signaling inhibited arthritis and articular bone destruction in mouse models of rheumatoid arthritis (RA). In the present study, we investigated the role of c-Met signaling in osteoblast differentiation using...

Oral Immunization Against Candidiasis Using Lactobacillus casei Displaying Enolase 1 from Candida albicans.

Scientia pharmaceutica

Shibasaki S, Karasaki M, Tafuku S, Aoki W, Sewaki T, Ueda M.
PMID: 25853077
Sci Pharm. 2014 Jul 23;82(3):697-708. doi: 10.3797/scipharm.1404-07. Print 2014.

Candidiasis is a common fungal infection that is prevalent in immunocompromised individuals. In this study, an oral vaccine against Candida albicans was developed by using the molecular display approach. Enolase 1 protein (Eno1p) of C. albicans was expressed on...

Theoretical study of exciton dissociation through hot states at donor-acceptor interface in organic photocell.

Physical chemistry chemical physics : PCCP

Shimazaki T, Nakajima T.
PMID: 25898910
Phys Chem Chem Phys. 2015 May 21;17(19):12538-44. doi: 10.1039/c5cp00740b.

We theoretically study the dissociation of geminate electron-hole pairs (i.e., excitons) through vibrational hot states at the donor-acceptor interface of organic photocells. To conduct this, we modify the formalism of Rubel et al. [Phys. Rev. Lett., 2008, 100, 196602],...

Enantioselective Total Synthesis of Epothilone A Using Multifunctional Asymmetric Catalyses.

Angewandte Chemie (International ed. in English)

Sawada D, Shibasaki M.
PMID: 10649378
Angew Chem Int Ed Engl. 2000 Jan;39(1):209-213. doi: 10.1002/(sici)1521-3773(20000103)39:1<209::aid-anie209>3.0.co;2-f.

A catalytic version has now been developed for the enantioselective total synthesis of epothilone A (1). The key is the use of multifunctional asymmetric catalyses for a direct aldol reaction and cyanosilylation. This successful approach demonstrated the usefulness of...

Catalytic asymmetric epoxidation of enones using La-BINOL-triphenylarsine oxide complex: structural determination of the asymmetric catalyst.

Journal of the American Chemical Society

Nemoto T, Ohshima T, Yamaguchi K, Shibasaki M.
PMID: 11456958
J Am Chem Soc. 2001 Mar 28;123(12):2725-32. doi: 10.1021/ja004201e.

The catalytic asymmetric epoxidation of enones using the La-BINOL-Ph(3)As=O complex generated from La(O-i-Pr)(3), BINOL, and Ph(3)As=O in a ratio of 1:1:1 is described herein. Using 1-5 mol % of the asymmetric catalyst, a variety of enones, including a dienone...

Enantioselective 1,4-addition of unmodified ketone catalyzed by a bimetallic Zn-Zn-linked-BINOL complex.

Organic letters

Kumagai N, Matsunaga S, Shibasaki M.
PMID: 11784190
Org Lett. 2001 Dec 27;3(26):4251-4. doi: 10.1021/ol016981h.

1,4-Addition (Michael addition) of 2-hydroxy-2'-methoxyacetophenone (2) to various alpha,beta-unsaturated ketones was efficiently promoted by a bimetallic Zn-Zn-linked-BINOL complex 3 with good yield (up to 90%) and excellent enantiomeric excess (up to 99% ee). The resulting 2-hydroxy-1,5-diketones were successfully converted...

Showing 1 to 12 of 576 entries