OBJECTIVE: To determine the content of patchouli alcohol in Huodan pills (traditional Chinese medicine) by near-infrared (NIR) spectroscopy. METHODS: The content of patchouli alcohol in 147 batches of Huodan pills samples were determined by GC. NIR spectra of all samples were collected, then standard normal variate, first derivative and Norris derivative filter methods were used as spectral preprocessing tools, and at last, the calibration model of patchouli alcohol content was established by partial least squares regression. RESULTS: The correlation coefficients, the root-mean-square error of calibration, and the root-mean-square error of cross-validation of the calibration model for patchouli alcohol were 0.95509, 0.0315, and 0.04510, respectively; the root-mean-square error of prediction and the average recovery rate of validation samples were 0.0343 and 100.76%, respectively. CONCLUSION: The method is stable, accurate, and can be used to determine the content of patchouli alcohol in Huodan pills rapidly.

Animals ; Cerebral Cortex ; metabolism ; Disease Models, Animal ; Male ; Mice ; Mice, Inbred Strains ; Morphine Dependence ; metabolism ; Neurotrophin 3 ; metabolism ; Prosencephalon ; metabolism

Humans ; Occupational Health ; Workplace ; statistics & numerical data

It is crucial to improve the health care quality during the progress of constructing the new health care system in both urban and rural area.On the condition of increasing government commonweal investment for the basic health care,the standardized training program for the district medical practitioners will become the pivotal step to improve district health care in urban and rural area,standardize medical service,reduce the medical cost and optimize the accessibility to medical care for the mass.Taking the consideration on the personal resource of district medical service in the urban and rural area in China,certain strategic proposals related to the standardized training program for the fundamental medical practitioners are discussed.

Adaptation, Physiological ; Animals ; Brain Stem ; Cloning, Molecular ; DNA, Complementary ; Gene Expression ; Gene Library ; Motion Sickness ; genetics ; Rats

Animals ; Disease Models, Animal ; Male ; Motion Sickness ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo study the phylogeny relationship and molecular identification of 10 species from Huperzia (Huperziaceae) based on matK gene sequences data.

METHODTotal DNA of nine species from Huperzia was extracted; matK gene sequence was amplified by PCR. PCR product was directly sequenced after purification.

RESULTThe chloroplast matK gene nucleotide sequences from 9 species of Huperzia species were sequenced. The matK gene nucleotide sequences length was 1 589 bp. Analysis with Huperzia lucidula matK gene nucleotide sequences (download from GenBank) and taking Lycopodiella cernua as outgroup, Maximum Parsimony, Neighbor-Joining analyses and genetic distances were conducted using MEGA 3.1 software. 35 variable sites and 35 parsimony informative sites have been found. Pairwise genetic distances among 10 species of Huperzia was 1.59% - 0.25%.

CONCLUSIONThe results were consistent with the taxonomy in morphological of Huperzia. But H. longipetiolata and H. serrata were resolved into in different clade. There are 19 different sites of matK gene sequences between H. longipetiolata and H. serrata, the genetic distances is 0.121%. It is suggested H. longipetiolata should be as an independent species.

DNA, Chloroplast ; genetics ; DNA, Plant ; chemistry ; genetics ; Endoribonucleases ; genetics ; Huperzia ; classification ; enzymology ; genetics ; Molecular Sequence Data ; Nucleotidyltransferases ; genetics ; Phylogeny ; Plant Proteins ; genetics ; Plants, Medicinal ; classification ; enzymology ; genetics ; Polymerase Chain Reaction ; Sequence Analysis, DNA ; Species Specificity

Chemical and Drug Induced Liver Injury ; Humans ; Liver Diseases ; diagnosis ; therapy

MTT Colorimetric method is usually applied for measuring the living animal cell number. By changing the reaction temperature and the reaction time as well as the colorimetric wavelength, the improved MTT colorimetric method was established to count the living bacterial cell number. This new method was used to measure the living cell concentration in the process for culturing bacteria PBW1. The results measured by the improved MIT colorimetric method and dilute plate method are similar. Compared with other methods including the dilute plate method, the improved MTT colorimetric method has many advantages such as accuracy, quickness.

Objective To investigate the clinical outcomes in the treatment of complex acetabular fractures through a single supra-ilioinguinal approach after the application of preoperative 3D printing and rapid prototyping simulating the operative procedure.Methods From January 2013 to January 2016,24 cases of complex pelvic and acetabular fractures in our hospital were retrospectively analyzed.Among them 18 cases were male and 6 were female.The average age was 39.2+±13.8 years (range,24-68 years).According to Letoumel-Judet's classification,there were 6 cases of transverse,4 cases of T shaped,4 cases of combined anterior column and posterior hemi-transverse (ACPHT) and 10 cases of 2-column fractures.The time from injured to operation averaged 9 days (range,4-18 days).Before operation,pelvic AP view,three-dimensional CT as well as CTA of iliac blood vessels was taken routinely in all cases.The CT and CTA scan data were then imported into Mimics software for 3D reconstruction.Surgical simulation and optimal placement of internal fixations were performed on computer.After that,the individual simulated model of the pelvis was printed by the use of 3D printing and rapid prototyping technique.The order of reduction,selection and optimal position of the implants were determined.The plates were bent before operation and the length and direction of the screws were recorded.A uniform supra-ilioinguinal approach was used in all cases.Results The length of incision averaged 9 cm (range,8-13 cm).The operative time average 130 min (range,90-220 min).The blood loss averaged 600 ml (range,300-1 500 ml).Once a satisfactory reduction was obtained,single placement of the plates was achieved.In accordance with the preoperative plan,the plates were perfectly fitted to the bone surface.The 24 patients were followed for an average time of 18.3 months (range,15-30 months).The fractures healed in all cases.The average healing time was 4.2 months (range,3-6 months).According to Matta criteria,there were 16 cases of excellent,6 cases of good,2 cases of poor and the excellent rate was 91.7％ (22/24).The average modified Merle d'Aubigne score was 16.5 (range,13-18).The functional outcome was excellent in 13 cases,good in 6 cases and poor in 5 cases.The excellent rate of hip functions was 79.2％ (19/24).There were 2 cases of femoral lateral cutaneous nerve injury (recovered one month later) and another 1 case of fat liquefaction of the incision happened three days postoperatively (the wound healed completely after several dressing changes).No inguinal hernia or abdominal wall hemias was found.No other postoperative complications was found.Conclusion The application of 3D printing and rapid prototyping technique allows preoperatively simulating reduction in vitro,determining the optimal position of the implants,bending the plates and measuring the length of the screws in advance,which could largely reduce the operative time,intraoperative blood loss and occurrence of postoperative complications.Adopting supra-ilioinguinal approach for the treatment of complex acetabular fractures with a small incision and less trauma,a full exposure could be obtained,so the reduction and fixation of the anterior,posterior and middle column (also named pubo-ischiatic column) could be completed in a direct visualization,resulting in a satisfactory clinical outcomes.