Trauma and chronic wear often make diverse injuries of rotator cuff.With the continuous development of medical technology,the treatment of rotator cuff tears is also being improved,including the modified suture techniques based on traditional single-row and double-row suture,the application of micro-fractures and tissue engineering strategies to facilitate the healing of rotator cuff,the adoption of superior capsular reconstruction and tendon transfer technique in the treatment of massive tears.Clinically,different types of rotator cuff tears have various repair techniques and therapies for healing promotion while each of them owns advantages and disadvantages.This article aims to review the current treatment of rotator cuff tears.

OBJECTIVETo study the patterns of dynamic accumulation of total flavonoids and total saponins in the roots of Ophiopogon japonicus collected from different harvest times, and compare the contents of total flavonoids and total saponins in roots of O. japonicus which were processed with different methods.

METHODThe total flavonoids and total saponins contents in O. japonicus were determined by ultraviolet spectrophotometry.

RESULT AND CONCLUSIONFrom December to January, the total contents of flavonoids and saponins in the roots of O. japonicus gradually decreased, and gradually increased from February to March, and kept stable in April. The contents of total flavonoids and total saponins in the O. japonicus were influenced by different processing methods.

Desiccation ; Flavonoids ; analysis ; metabolism ; Ophiopogon ; chemistry ; metabolism ; Plant Roots ; chemistry ; metabolism ; Saponins ; analysis ; metabolism ; Seasons ; Temperature ; Time Factors

Objective:To investigate the psychological stress and related factors of community medical staff in Shanghai during infectious public health emergencies.Methods:Random cluster sampling, questionnaires combining general demographic information, self-rating anxiety scale(SAS), self-rating depression scale(SDS)and yale-brown obsessive compulsive scale(YB)were administrated to investigate the psychological stress of medical staff from 20 community healthcare centers in 10 Shanghai districts.Results:A total of 696 valid questionnaires were collected. 17.36% of the staff had SAS scores exceeding the boundary value. Nurses, staff with per capita monthly family income<5 000 yuan, or with below-average family relations presented higher SAS scores. 28.19% of the staff had SDS scores exceeding the boundary value. Staff with 5-10 years seniority, nurses, with per capita monthly family income<5 000 yuan, and with poor family relations presented higher SDS scores. 6.68% of the staff had YB score≥16. Nurses presented a higher YB score.Conclusions:Some community healthcare center staff experienced psychological stress during public health emergencies.Factors associated with psychological stress, such as 5-10 years′ seniority, nurses, per capita monthly family income<5 000 yuan, below-average or poor family relations, deserve more attention in order to prevent from or alleviate harmful psychological stress.