A simple and rapid reversed-phase HPLC-UV method was developed for the determination of triterpenic acids in the crude extract of Prunellae Spica. Five triterpenic acids were extracted and isolated from P. Spica as marker compounds for use in the quality control of herbal medicines. Various solvent extraction techniques were evaluated, and the greatest efficiency was observed with sonication in...

Spica Prunellae has long been used as a significant component in numerous traditional Chinese medicine (TCM) formulas to clinically treat cancers. Previously, Spica Prunellae was shown to promote cancer cell apoptosis and inhibit angiogenesis in vivo and in vitro. To further elucidate the precise mechanism of its tumoricidal activity, the effect of the ethanol extract of Spica Prunellae (EESP) ...

BACKGROUND Constitutive activation of STAT3 is one of the major oncogenic pathways involved in the development of various types of malignancies including colorectal cancer (CRC); and thus becomes a promising therapeutic target. Spica Prunellae has long been used as an important component in many traditional Chinese medicine formulas to clinically treat CRC. Previously, we found that Spica Prune...

Variations in the arterial pattern of the upper limb are very common as observed in many cadaveric and angiographic studies. Knowledge of variations in the origin and course of the radial artery is important because they are used for many diagnostic procedures as well as vascular and reconstructive surgeries like coronary angiography, percutaneous coronary intervention and coronary artery bypas...

Carswell Partners, London, Ontario Correspondence: Mr Norman H Tiffin, 22551 Jury Road, Kamoka, Ontario N0L 1R0. Telephone 226-376-1414, e-mail [email protected] Tobacco smoking has no health benefits. None. It can be argued that nicotine, one of the thousands of compounds in tobacco smoke, can have positive effects on some cognitive functions and may even confer some neuroprotection (1), but gett...

Y pull into the hospital parking lot just before dawn — one of the first cars in, one of the last out. As a first-year resident, you make up in hours what you lack in experience. You speedwalk to the hospital’s back entrance through the January fog. You wonder if you left the iron on in your apartment. No matter how often you iron and bleach your white coat, it never looks or feels clean. You n...

Background: The ageing of baby boomers may create significant financial strain upon aged and community care in the future. Topic and Objectives: In this literature review, we examine why concern has been expressed about Australia’s ability to cope with the “baby boomer bubble”. We discuss differences between baby boomers and their parents and within the baby boomer cohort, and suggest that thes...

No AccessSurvey PapersWind Sensing and Estimation Using Small Fixed-Wing Unmanned Aerial Vehicles: A SurveyPengzhi Tian, Haiyang Chao, Matthew Rhudy, Jason Gross Huixuan WuPengzhi TianUniversity of Kansas, Lawrence, Kansas 66045*Ph.D. Student, Aerospace Engineering Department; .Search for more papers by this author, ChaoUniversity 66045†Associate Professor, RhudyPennsylvania State University, R...

Previous studies of employee investment in retirement plans suggest that people typically "naively diversify" their investment funds, tending to allocate 1/n of the total to each of n available instruments (Benartzi & Thaler, 2001). In this paper we provide experimental evidence that this bias extends to allocation among simple chance prospects and demonstrate three new violations of rational c...

Prior research has suggested that many older Americans have not saved enough to maintain consumption levels in old age. One way older persons might respond to inadequate savings would be to extend their worklives by delaying retirement. This paper examines evidence on this matter using the Health and Retirement Study, a nationally representative panel survey of people age 51-61 in 1992 followed...