The chiral resolution of the optical isomers of aryloxypropionic acid herbicide intermediate α-chloro-N-phenyl propanamide was studied by reversed phase high performance liquid chromatography on chiral column. The experimental results showed that the optical isomers of α-chloro-N-phenyl propanamide could be resolved much better on the tribenzoylcellulose (CTB) chiral column with ethanol as mobile phase. The separation factor and separation degree were 1.52 and 0.60 respectively

By reviewing literature, summarization and generalization are respectively pertormed according to different electroacupunture (EA) parameters. Based on the understanding of clinical and experimental usage of EA parameters, effects of different parameters are summarized, and a preliminary evaluation is done to point out the advantages and disadvantages. It is found out that different EA parameters would produce different effects on the body, and researches are more in the field of experimental area and less in the clinical area. What's more, the majority of scholars focuses their attention on single-factor study, leading to fewer researches on the effects of parameters combination.
Animals ; Biomedical Research ; Electroacupuncture ; instrumentation ; methods ; trends ; Humans

Taken Huantiao (GB 30) as breakthrough point, acupuncture manipulations of generating various needling sensations by different physicians are sorted. Types of acupoint needling sensations and conducting directions after acupuncture and all kinds of factors that affect needling sensations are analyzed from new perspectives. It is considered that attention should be paid to acupoint location, postures of patients, manipulation methods, types of needling sensations, transmission lines and duration time of needling sensations, etc.
Acupuncture Points ; Acupuncture Therapy ; instrumentation ; methods ; Humans ; Needles ; Sensation

Objective To explore the association between moxibustion sensation and therapeutic efficacy during moxibustion treatment. Methods By applying Taiyi moxa stick to Shiqizhui (EX-B 8) to treat primary dysmenorrhea, the association between the change of Visual Analogue Scale (VAS) score and the topical moxibustion sensation and transmission types during the 30 min moxibustion treatment was observed. Besides, the occurrence time of transmission, and the transmission distance, width, depth, and direction were recorded. Results Superficial moxibustion sensation occurred in forty patients, of whom, the VAS score changed by (38.50±14.38) mm; heat-penetrating moxibustion sensation occurred in 18 patients, and the VAS score changed by (38.89±12.43) mm; heat-expanding sensation occurred in 6 patients, and the VAS score changed by (45.00±14.10) mm; distant transmission happened in 13 patients, and the VAS score changed by (41.54±13.90) mm. Patients with 4 types of moxibustion sensation had the highest VAS scores both before and after treatment, followed by 3 types, 2 types, and 1 type moxibustion sensation. In comparing the changes of VAS score between 10 min and 20 min treatment and between 20 min and 30 min treatment, the patients with 4 types of moxibustion sensation had the most significant change. Conclusions Different moxibustion sensations occur at different frequencies, and the occurrence of moxibustion sensation is related to the severity of disease condition. The number of moxibustion sensation type can affect the remission process of disease, but can merely influence the treatment result. The single moxibustion sensation (superficial heat only) works faster, usually taking 0~10 min; while the other forms of moxibustion sensation (heat penetrating, heat-expanding, and distant transmission) works slower, usually taking over 20 min.

In order to optimize acupuncture treatment protocol for functional defecation disorders, literature during past 20 years is reviewed, and factors which influences acupuncture therapeutic effect are analyzed from aspects of acupoint, acupuncture technique, etc. As for the selection of acupoint, more attention should be paid on the use of Baliao, especially Zhongliao (BL 33) and Xialiao (BL 34); when Baliao is deeply needled, it is essential to acquire scientific technique. The relationship between acupuncture parameter (including electroacupuncture waveform and frequency), acupuncture techniques (including reinforcing and reducing technique, quantity of stimulation, etc. ) and acupuncture efficacy is complicated, and the scientific values of present research conclusion are in need, of further improvement. The diagnosis and treatment awareness on types of functional defecation should be strengthened, and the mental health of the constipation patients should be concerned. The combination of acupuncture and biofeedback training can have a synergistic effect, which is benefit to achieve a better long-term effect. Based on this, acupuncture treatment protocol for functional defecation disorders can be optimized to further improve the efficacy.
Acupuncture Points ; Acupuncture Therapy ; methods ; Constipation ; physiopathology ; therapy ; Defecation ; Female ; Humans ; Male

Objective: To compare the therapeutic effects of two different moxibustion methods both with tai-yi moxa stick in treating primary dysmenorrhea. ＜br> Methods: Forty-three patients were randomized into two groups by the random number table according to their treatment orders. The causalgic group was intervened by causalgic stimulation with tai-yi moxa stick while the tepid group was treated by mild thermal stimulation with tai-yi moxa stick. Shiqizhui (EX-B 8) was selected for both groups. Visual analogue scale (VAS) was used for observation before and during the treatment by every 10 min to compare the clinical efficacies between the two groups. ＜br> Results: Before treatment, there was no statistically significant difference in pain intensity between the two groups (P>0.05). After treatment, both groups achieved significant improvements in pain intensity (P＜0.05), but the inter-group difference in pain intensity was still statistically insignificant (P>0.05), but the difference was enlarged comparing with that before treatment. The pain relief during the first 10 min of treatment was slower in the causalgic group than that in the tepid group. However, during the later 20 min, the pain relief in the calsalgia group gradually outpaced that in the tepid group. ＜br> Conclusion: The two moxibustion methods with tai-yi moxa stick both have a good instant analgesic effect in treating primary dysmenorrhea. For patients with primary dysmenorrhea, if 30 min is regarded as the treatment time, mild stimulation was suggested to be used for the first 10 min, and causalgic stimulation for the later 20 min to achieve a better curative effect.

Objective To analyze injury characteristics and treatment of hospitalized patients wounded in Wenehuan earthquake so as to provide references for medical rescue in disasters. Methods The study involved data of seismic patients from Trauma Database System Version 3.0 that collected clini-cal data of seismic patients admitted into West China Hospital of Sichuan University, Chengdu, and First and Second Hospitals of Deyang City. Trauma Database System Version 3.0 was developed by Research Institute for Traffic Medicine of PLA, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing. A comparative analysis was done on patient distribution, injury severity and medical treatment. Results There were 826 qualified patients including 410 males and 416 females ( at age range of 1-102 years, mean 45.8 years). Of all, the patients at age of 31-60 years accounted for 50. 2%. The patients were mainly peasants (43.8%, 208/477), workers (15.7%, 75/477) and students (14.1%, 67/477). Blunt injury (53.2%), crush/bury injury (22.5%) and slip/fall injury were three main causes for injury. The patients for 92.1% were admitted into two hospitals of the City of Deyang within four days after earthquake, while 81.7% of patients were admitted into West China Hospital in Chengdu at days 3-9 after earthquake. Patients with bone injuries accounted for 75.3%. The patients had abbreviated injury score (AIS) for mainly 1-3 points, with incidence rate of se-vere multiple trauma ( ISS > 16 points) of 8.2%. Internal fixation was done in 120 patients ( 34. 1% ), debridement and suturing in 103 (29.3%), external fixation in 55 ( 15.6% ), extremity amputation in 22 (6.3%) and intracerebral surgery in 2 (0.6%). Conclusions The injuries are mainly induced by collapse of buildings during earthquake. Bone injuries are predominant injury type, with AIS of mainly 1-3 points and few severe multiple trauma. The results show that the patients receive late special treat-ment and slow evacuation, indieating necessity of strengthening capacity of early medical treatment and ef-fective evacuation during destructive natural disasters.

Objective: To analyze the relationship between daily behavior and self-perceived academic performance among students in Jiangxi, and to provide a scientific basis for developing health behavior among adolescents and children. Methods: By using stratified cluster sampling, 12 primary and secondary schools from six counties of Jiangxi Province were selected, and a total of 2 284 students were investigated with questions including breakfast consumption, number of days participating in sports activities (≥45 min) and the average screen time during the past 7 days. Regression analysis was carried out by using ordered multi-classification logistic. Results: Of the 2 284 students surveyed, 1 374(60.16%) perceived their academic performance as very good or good, 613 (26.84%) and 297(13.00%) perceived as moderate or poor. Primary school, having breakfast every day, not playing on mobile or computer during weekday was positively associated with higher self-perceived academic performance (OR=0.50, 0.57 and 0.64, respectively, P<0.05), no sports activities ≥45 min during the past 7 d was associated with poor(OR=1.57, P<0.01). Among the 2 284 students, 67.43% students ate breakfast every day in the past 7 d, 75.39% students did not play mobile phones or computers at school, 40.89% students did not participate in sports activities (≥45 min). Conclusion Breakfast skipping and insufficient physical exercise shows adverse effects, and no/limited screen time during weekdays shows positive effects on academic performance. Intervention of visky behaviors should to carried out from different perspectives to promote the develpment of the health habits among students.