[5-Hydroxy-3-phenyl-1-(pyridin-2-yl)pyrazol-5-olato]diphenylboron

In the title compound, C26H20BN3O, the B atom has tetra­hedral geometry and is linked to two phenyl rings, the O atom of the hy­droxy­pyrazole ring and the N atom of the pyridinyl ring. A six-membered BOCNCN ring forms by coordination of the B atom and the pyridinyl N atom. The BOCNCN ring has an envelope conformation [dihedral angle = 36.7 (1)° between the planar ring atoms and the flap] with the B atom out of the plane. In the 1-(2-pyridin­yl)-3-phenyl-5-hy­droxy­pyrazole group, the pyridinyl ring, the phenyl ring and the pyrazole ring are almost coplanar: the pyrazole ring makes a dihedral angle of 9.56 (8)° with the pyridinyl ring and 17.68 (7)° with the phenyl ring. The crystal structure is stabilized by π–π stacking inter­actions involving the pyridinyl and pyrazole rings of centrosymmetrically related mol­ecules, with ring centroid separations of 3.54 (5) Å

Comparison of self-reported and accelerometer-assessed measurements of physical activity according to socio-demographic characteristics in Korean adults

OBJECTIVES Previous studies have shown relatively low correlations between self-reported and accelerometer-assessed physical activity (PA). However, this association differs by socio-demographic factors, and this relationship has not been fully investigated in the general population. Thus, we investigated the correlation between self-reported and accelerometer-assessed PA and whether it differed by demographic and socioeconomic factors among the Korean general population. METHODS This cross-sectional study included 623 participants (203 men and 420 women) aged 30 to 64 years, who completed a PA questionnaire and wore a wrist-worn accelerometer on the non-dominant wrist for 7 days. We examined the agreement for metabolic equivalent task minutes per week (MET-min/wk) between the 2 measures and calculated Spearman correlation coefficients according to demographic and socioeconomic factors. RESULTS The kappa coefficient between tertiles of self-reported and accelerometer-assessed total MET-min/wk was 0.16 in the total population, suggesting overall poor agreement. The correlation coefficient between the 2 measurements was 0.26 (p<0.001) in the total population, and the correlation tended to decrease with increasing age (p for trend <0.001) and depression scores (p for trend <0.001). CONCLUSIONS We found a low correlation between self-reported and accelerometer-assessed PA among healthy Korean adults, and the correlation decreased with age and depression score. When studying PA using accelerometers and/or questionnaires, age and depression need to be considered, as should differences between self-reported and accelerometer-assessed PA

Human bloodstream infection caused by Staphylococcus pettenkoferi

Staphylococcus pettenkoferi is a recently isolated human pathogen with only a few reported cases of infection. We report a case of bloodstream infection caused by S. pettenkoferi in a patient with pulmonary tuberculosis.Rintala H, 2008, BMC MICROBIOL, V8, DOI 10.1186/1471-2180-8-56Tang YW, 2008, DIAGN MICR INFEC DIS, V60, P351, DOI 10.1016/j.diagmicrobio.2007.11.005Trulzsch K, 2007, INT J SYST EVOL MICR, V57, P1543, DOI 10.1099/ijs.0.64381-0Loiez C, 2007, J CLIN MICROBIOL, V45, P1069, DOI 10.1128/JCM.02328-06Lau SKP, 2006, J CLIN PATHOL, V59, P219, DOI 10.1136/jcp.2004.025247Mellmann A, 2006, EMERG INFECT DIS, V12, P333Fontana C, 2005, J CLIN MICROBIOL, V43, P615, DOI 10.1128/JCM.43.2.615-619.2005Woo PCY, 2003, J CLIN MICROBIOL, V41, P1996, DOI 10.1128/JCM.41.5.1996-2001.2003Trulzsch K, 2002, DIAGN MICR INFEC DIS, V43, P175Drancourt M, 2002, J CLIN MICROBIOL, V40, P1333, DOI 10.1128/JCM.40.4.1333-1338.2002Kim SD, 2000, INFECT CONT HOSP EP, V21, P213Pfaller MA, 1999, DIAGN MICR INFEC DIS, V33, P283Huebner J, 1999, ANNU REV MED, V50, P223