Animals ; Dibutyl Phthalate ; toxicity ; Female ; Hippocampus ; cytology ; growth & development ; Male ; Mitochondrial Proton-Translocating ATPases ; metabolism ; Neurons ; drug effects ; metabolism ; Pregnancy ; Rats ; Rats, Wistar

Human factors engineering is a promising interdisciplinary subject in applied sciences.This study presented the development and research purposes of human factors engineering.Based on case studies,the authors probed into the importance of the engineering in the design,management and procurement of medical equipments,for the purpose of optimizing medical equipment design,manufacturing and procurement.

This paper analyzed current problems and challenges facing hospitals in alarm management both abroad and at home. Based on a survey conducted on alarm management in hospitals, plus an analysis on different kinds of data interfaces and data exchange protocols of the medical equipment used in ICUs, a solution of alarm management is put forwarded which is based on alarm information integration and processing. It aims at improving medical equipment alarm management and reducing relevant adverse events.
Automatic Data Processing ; Clinical Alarms ; Intensive Care Units

The aim of this paper is to apply Raman spectroscopy technique to develop rapid quantitative models for five kinds of Traditional Chinese Medicine containing CaCO3. In the experiment, Raman spectras of 67 batch of sample including Otolithum Sciaenae, Galaxeae Os, Ophicalcitum, Calcite, Stalactite and their mixture which had different content of CaCO3 were collected, and the quantitative models were established by using an improved siPLS to optimize the characteristic spectral bands and using the CaCO3 contents which were measured by EDTA titration method as references. Compared with the results by EDTA titration, the established quantitative model for CaCO, content showed a prediction result that the average relative deviation of the prediction results is 2. 71% and the average recovery rate was 100.46%, when the content is between 0.465 4-0.999 7, and when the characteristic spectral bands of 1 290-1 280, 730-714, 700-690, 660-650, 465-460, 455-445, 405-385 cm(-1) had been optimized. The result also showed that the model using Raman spectroscopy and based on an improved siPLS can get a rapid determination for contents of 5 kinds of Traditional Chinese Medicine containing CaCO3.
Calcium Carbonate ; chemistry ; Drugs, Chinese Herbal ; chemistry ; Least-Squares Analysis ; Models, Statistical ; Plants, Medicinal ; chemistry ; Spectrum Analysis, Raman ; methods

The aim of this paper is to clarify the mineral origin of traditional Chinese medicine (TCM) Yangqishi and Yinqishi and guide identification of the both, by X-ray diffraction (XRD) Fourier patterns. Morphological identification and conventional physical and chemical analysis wee used to identify 22 batches of Yangqishi and Yinqishi. It used XRD Fourier patterns which has been collected from sample powders to analyze phase composition. It has been found experimentally that the mineral origin of Yinqishi is Talc schist and the mineral origin of Yangqishi is tremolite and actinolite. The results also showed that the method using XRD can get not only an accurate but also rapid identification of Yangqishi and Yinqishi. There are many differences in medicinal properties, efficacy, indications and composition of Yangqishi and Yinqishi, so be careful not to mix them up.
Asbestos, Amphibole ; chemistry ; Drugs, Chinese Herbal ; chemistry ; X-Ray Diffraction

OBJECTIVETo observe the effect of Guizhi plus Gegen Decoction (GGD) on ultrastructural changes of intervertebral disc annulus fibrosus cells.

METHODSRats' intervertebral disc annulus fibrosus cells were isolated and cultured using adherence wall screening method. After annulus fibrosus cells were intervened by GGD, the microstructure and ultrastructural features of untreated annulus fibrosus cells and annulus fibrosus cells treated by GGD containing serum at different concentrations were observed under optical microscope and electron microscope.

RESULTSUnder optical microscope, most annulus fibrosus cells showed irregular polygons and few in star shape with rich superficial ecphyma. The nuclei were oval, large and complete. Under electron microscope, most cells in the blank group were oval after intervened by GGD containing serum at different concentrations. The nucleus was large, deviated, and irregular, the heterochromatin scattered diffusely, partial mitochondria vacuolized, and rough endoplasmic reticulum dilated. In the low dose GGD group, increased mitochondria and condensed density could be seen. The rough endoplasmic reticulum were expanded, lipid drops or glycogen could be occasionally seen. In the middle dose GGD group, increased endoplasmic reticulum expansion and condensed density could be seen. More medium density protein sediment could be seen. Increased mitochondria with condensed density could be seen, showing irregular cystic form with various sizes nucleus. In the high dose GGD group, increased rough endoplasmic reticulum with obvious expansion could be seen. More high density protein sediment could be seen. The nuclei were deviated. More mitochondria could be seen with secretory granules in them.

CONCLUSIONSAfter intervened by GGD containing serum at different concentrations, the ultrastructure of annulus fibrosus cells were manifested as follows: (1) The endoplasmic reticulum increased more in the middle and high dose GGD groups than in the blank group and the low dose GGD group. Greater density protein sediment occurred, especially in the high dose GGD group. (2) GGD played an important role in preventing ultrastructural changes induced by the degeneration of annulus fibrosus cells.

Animals ; Cells, Cultured ; Drugs, Chinese Herbal ; pharmacology ; Intervertebral Disc ; cytology ; drug effects ; ultrastructure ; Rats ; Serum

To ascertain current situation of wild Marsdenia tenacissima resources in Honghe, Yunnan province, the distribution, habitat characteristic and resources reserves of M. tenacissima were surveyed based on interviews and investigation. The results showed that M. tenacissima was found in 7 counties such as Jinping, Mengzi etc, and distributed mainly on the mountainsides from 800 m to 1 200 m. And distribution was affected by many factors, such as light, heat, topography, soil, and vegetation. M. tenacissima grew well in distribution areas. M. tenacissima had averagely a weight of 2.8 kg per plant. Resources reserve of M. tenacissima in Honghe was estimated to 1 300 tons by now but it reduced rapidly in resent years, the wild resources reserve may not meet demand of market. Resources protection and wildlife tending would be conducted to deal with increasing medication requirements.
China ; Ecosystem ; Marsdenia ; classification ; growth & development ; Plants, Medicinal ; classification ; growth & development ; Soil ; chemistry

Objective To explore the best time point for the ipsilateral hepatocellular apoptosis and the contralateraI hepatic hypertrophy after selective portal vein embolization(SPVE)in rabbit.Methods In a randomized study design,forty rabbits were divided into 5 groups with 8 rabbits per-group,including one as the control and the other 4 were treated with SPVE during open surgery.The rabbits were killed postoperatively,in 3,7,14,21 days respectively after the embolization.The hepatic lobes volume,the ipsilateral hepatocellular necrosis rates and apoptosis index,and liver functions were determined as well. Results In the treatment groups,the average amount of the right liver volumes decreased from 46.4 cm~3 preoperatively to 46.0,44.4,42.0,39.7 cm~3 in groups of 3,7,14,21 days postoperatively;meanwhile,the left liver volumes increased from 54.0 cm~3 preoperatively to 54.5,56.3,61.7,63.9 cm~3 respectively during 3, 7,14,21 days after the procedures.The rates of future remaining live volumes(FRLV)increased from 53.8% preoperatively to 54.2%,55.9%,59.0%,61.0% at 3,7,14,21 days postoperatively.The apoptosis indexes of hepatocells from group A to E were 8.1%,12.2%,19.4%,20.1%,14.2% respectively.Conclusions SPVE leads to atrophy of the ipsilateral hepatic lobe and hypertrophy of contralateral lobe,indicating that hepatocytes undergone apoptosis,rather than necrosis.The time point is 7 to 14 days.

Objective To investigate the prevalence and distribution of pre-diabetes and diabetes mellitus in Han population aged over 60 years in Urumqi. Methods The physical examination and 75 g oral glucose tolerance test (OGTT) were performed in 2210 people, including 1231 elderly people aged over 60 years (old age group) and 951 people aged 40-59 years (middle age group). The diagnosis of diabetes mellitus was established according to WHO criteria in 1999. Results In Han ethnic people, the prevalence rates of diabetes mellitus and pre-diabetes were 32.2% and 29.0% respectively in old age group, and were significantly higher than in middle age group ( 12.3% and 20.9%,x2= 192.62, P＜0.05). The prevalence rates of impaired glucose tolerance (IGT) were higher in old age group than in middle age people (21.6% vs. 13.9%, x2 = 20.97, P＜0.05), but there was no significant difference in the prevalence rate of impaired fasting glucose (IFG) between the two groups. The prevalence rate of metabolism syndrome (MS) was higher in old age group than in middle age group (52.2% vs. 33.7%, x2 =73.77, P＜0.05). The multivariable analysis showed that hypertriglyceridemia, hypertension, family history of diabetes mellitus were risk factors for development of diabetes mellitus in elderly Han population (x2 =44.34, P＜0.05). Conclusions The prevalence rates of diabetes and pre-diabetes are considerably high in the current state. It should be strengthened to prevent and treat diabetes mellitus and pre-diabetes in Urumqi Han population,especially in residents aged over 60 years.

Objective To determine the diagnostic value of anti-mutated citrullinated vimentin(anti- MCV)antibodies for rheumatoid arthritis(RA).Methods The anti-MCV were determined in 136 patients with RA,80 non-RA patients and 19 normal peoples.The diagnostic value of anti-MCV was assessed and compared with anti-CCP,AKA and RF.Results The sensitivity and specificity of anti-MCV in the 136 RA patients was 95.6% and 80.8% respectively,there was significanl difference between the test group and the control group(P