s: Cyclocarya paliurus (Batal.) Iljinsk. polysaccharide (CPPC) has various biological activities including hypolipemic effect, hypoglycemic effect, anti-oxidant effect, anti-tumor effect and immunomodulatiry;especially that hypolipemic effect and hypoglycemic effect have become the research hotspots in recent years. This article reviewed extraction, purification, content determination and biological activity of CPPC in the latest decade, with a purpose to provide references for the deep research and industrial development CPPC.

Objective To discuss the developing law of pathogeny and mechanism of chronic hepatitis type B.Methods Patients of chronic hepatitis type B,early hepatocirrhosis and ascites caused by hepatocirrhosis was chosen as objects and clinical information was collected face to face.Patterns of Chinese medicine were confirmed and counted seperately according to efficiency,deficiency and efficiency-deficiency sydrome,harmed Zang-Fu organs and syndrome factors.Finally,the developing law of pathogeny and mechanism was analyzed.Results As the state of chronic hepatitis type Bevolving,simple efficiency and deficiency sydrome decrease with efficiency-deficiency sydrome increasing.Zang-Fu organs damaged by chronic hepatitis type B including mostly liver,gallblader,spleen,stomach,kidney,Trijiao and so on,among which spleen and liver are mainly damaged.As the state of chronic hepatitis type B evolving,the frequencies of damage to gallblader,spleen,stomach,kidney,Trijiao and so on increase.Most simple chronic hepatitis type B cases are due to Shi,Shi-Re,efficiency and stasis of Qi,while most of early hepatocirrhosis stem from Shi-Re,extravasated blood,efficiency and stasis of Qi,with that of ascites caused by hepatocirrhosis originating from Shi-Re,extravasated blood,Shui,efficiency of Qi and Yin. Conclusion There is developing law in the character,location and syndrome factors of chronic hepatitis type B.

Objective To determine the contents of elements Fe, Mn, Ni, Cu, Zn, Ca, Mg and Cr in Gentiana macrophlla and Gentiana officinalis. Methods The contents of elements were determined by flame atomic absorption spectrometry. Results The recovery rates obtained by standard addition method were between 88.1%～114.5%, and the RSDs were lower than 3.18%. Gentiana macrophlla is rich in the trace elements such as Fe, Ni, Cu, Ca, Mg, and Gentiana officinalis is rich in the trace elements such as Mn, Zn, Cr. Conclusion There are some difference between wild and planted Gentiana officinalis in element content, that may be related to their growing environment.

Objective To investigate whether CD4~+ CD25~+ regulatory T cells (Treg) from C57BL/6J mice express alpha7 nicotinic acetylcholine receptor (α7nAChR). Methods CD4~+ CD25~+ regulatory T cells were isolated from mouse splenocytes with a CD4~+ CD25~+ regulatory T Cell isolation kit (Mihenyi Bio-tee). The purity of isolated Tregs was analyzed by flow eytometry. Expressions of α7nAChR in mouse CD4~+ CD25~+ Tregs were examined by immunofluorescence staining, Western blotting, and reverse transeription-PCR, respectively. Results It was revealed by flow cytometry that Tregs could bind alpha-bungarotoxin (α-BGT)-F/TC, a specific α7 nAChR antagonist. Moreover, a positive binding to α-Bgt was also observed on the cell surface of Treg, as viewed by fluorescent confoeal microscopy. In addition, a clear band of a7nAChR with a molecular mass of approximately 55 kD was found from Tregs by Western blotting analysis, and α7nAChR mRNA was expressed with the expected size of 199 bp from Tregs by reverse transcription-PCR. Conclusion Natural CD4~+ CD25~+ Tregs from mice express α7nAChR.

Objective To evaluate the changes in esophageal pressure and 24h pH on the pathogenesis of esophagitis by means of a multivariate logistic regression analysis of obtained values. Methods Monovariate comparison of parameters from 24h ambulatory esophageal pH measurements and esophageal manometry between two groups of gastro-esophageal reflux disease (GERD) patients, including 45 with esophagitis, 40 without esophagitis, and 42 healthy controls. Multivariate logistic regression analysis of parameters obtained was carried out. Results All parameters of DeMeester-Johson score were significantly higher in esophagitis than those of without esophagitis. The composite scores were 113.29?26.73 and 42.66?11.25, respectively (P

ObjectiveTo probe into the dependability of trochlear line (TL) as the reference axis for femoral component rotation in total knee arthroplasty.MethodsEighty-nine healthy adults had computed tomography (CT) scan for knees to position the surgical transepicondylar axis (STEA),posterior condylar line (PCL) and TL on the transverse sections.In the meantime,the angles including angle between TL and STEA (TSA),angle between TL and PCL (TPA) and angle between PCL and STEA (PCA) were measured and compare the dependability of TSA and PCA.ResultsThe TSA,TPA and PCA were (6.77 ± 3.12) °,(4.22 ± 2.64) ° and (2.95 ± 1.77) °,respectively.Three types of angles showed no statistical differences between males and females or between right knees and left knees (P ＞0.05).Rank sum test displayed significant differences in the overall distributions of three kinds of angles ( HC =66.837,P ＜0.01 ).The coefficient of variation of TSA was insignificant,but the standard variation was significant (3.12°).ConclusionTL can be considered only as the subsidiary femoral rotation osteotomy axis in total knee arthroplasty.

BACKGROUND: Insulin resistance and impaired insulin secretion are the key complications of polycystic ovary syndrome (PCOS). The incidences of insulin resistance syndrome (IRS), impaired glucose tolerance (IGT) and diabetes mellitus have been clearly shown to be race-related, thus the association between polycystic ovary syndrome and insulin resistance was race-related.OBJECTIVE: To analyze the correlation of insulin resistance with body mass index (BMI), blood lipids and plasma glucose in Tibetan patients with PCOS.DESIGN: A prospective study based on Tibetan population.SETTING: Department of Cardiology, General Hospital of Chinese PLA; Second Department of Internal Medicine,General Hospital of Tibetan Military Area Command of Chinese PLA.PARTICIPANTS: Thirty-six Tibetan PCOS patients, aged 25-42 years with a mean age of (32±5) years were selected from the Second Department of Internal Medicine and Department of Gynecology, General Hospital of Tibetan Military Area Command of Chinese PLA. Another 36 female inpatients were selected as the controls (control group), aged 24-35 years with a mean age of (30±5) years.METHODS: The disease histories were collected and general conditions were recorded. Oral glucose tolerance test (OGTT, 75 g) was conducted for all the subjects. All the subjects werefasted for 12 hours to collect venous blood samples to detect the levels of hormone, fasting insulin, total cholesterol, triglyceride, high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C). Ovary was detected with echocardiography. The insulin resistance index was calculated by the homeostasis model assessment (HOMA-IR) was calculated by the formula:fasting insulin (mlU/L)×FPG (mmol/L)/22.5. The blood pressure, BMI and levels of blood lipids, plasma glucose and insulin were compared between the PCOS group and control group.MAIN OUTCOME MEASURES: Blood pressure, BMI and levels of blood lipids, plasma glucose and insulin were observed in both groups.RESULTS: All the 36 PCOS patients and 36 controls were involved in the analysis of final results. ① The BMI, systolic blood pressure and diastolic blood pressure in the PCOS group were higher than those in the control group (t =3.426 5,2.448 4, 2.212 5, P ＜ 0.05-0.01). ② The levels of total cholesterol, triglyceride and LDL-C in the PCOS group were higher than those in the control group (t=2.104 9, t =2.304 7, 2.400 0, P＜ 0.05-0.01), whereas the level of HDL-C was lower that in the control group (t =4.800 0, P＜ 0.01). ③ The levels of fasting insulin and 2-hour plasma glucose and HOM in the PCOS group were higher than those in the control group (t =7.809 5, 12.365 0, 2.789 9, P＜ 0.01).CONCLUSION: Tibetan PCOS patients present a clustering of atherosclerotic risk factors, including obesity, adverse lipid profile, hypertension, hyperglycemia, etc.

OBJECTIVE:To study antioxidant activities of ethanol extract of Paeonia lactiflora (CREt) and different polar parts in vitro. METHODS:CREt was prepared with 95% ethanol. CREt (extracted by 50% ethanal) was extracted with aether petrolei,acetic ether and n-butyl alcohol to obtain aether petrolei part (CRP part),acetic ether part (CRE part),n-butyl alcohol part(CRB part)and water part(CRW part). The ability of CREt and different polar parts eliminating DPPH·,O2-· and ·OH were investigated (mass concentrations of CREt and different polar parts were respectively 0.75-12,0.5-6,1.25-15 mg/ml in above 3 tests) and compared with ascorbic acid (VC,0.2 mg/ml) group. RESULTS:The maximum elimination rate of CREt to DPPH·, ·OH and O2-· were(97.55±0.25)%,(81.45±0.20)% and(75.28±0.41)%,IC50 were 1.629,1.789 and 5.268 mg/ml;those of CRE part to those radicals were (82.54 ± 0.36)%,(77.74 ± 0.42)% and (72.16 ± 0.73)%,IC50 were 2.481,1.918 and 6.005 mg/ml;that of CRB part to ·OH reached to(62.53±0.83)%,IC50 was 7.232 mg/ml,but to DPPH·、O2-· were less than 45%;those of CRP part and CRW part to those radicals were all lower than 40%. Each part could eliminate 3 radicals in dose-dependent manner,but were all poorer than VC group,with statistical significance (P<0.01). CONCLUSIONS:The CREt and CRE part show strongest antioxidant activities in vitro,and other parts have weak antioxidant effect.

In this work, a new method of heart sound signal preprocessing is presented. First, the heart sound signals are decomposed by using multilayer wavelet transform. And then double parameters as thresholds are used in processing each layer after decomposition for denoising. Next, reconstruction of heart sound signals could be done after processing last layer. Four methods, i.e. wavelet transform, Hilbert-Huang transform (HHT), mathematical morphology, and normalized average Shannon energy, were used to extract the envelop of the heart sound signals respectively after reconstruction of heart sounds. All methods were improved in this study. We finally in our study chose 30 cases of raw heart sound signals, which were selected randomly from a database comed from The Clinical Medicine Institute of Montreal, and processed them by using the improved methods. The results were satisfactory. It showed that the extracted envelope with the original signal has a high degree of matching, whether it is a low frequency portion or high frequency portion. Most of all information of heart sound has been maintained in the envelope.
Algorithms ; Heart Sounds ; Humans ; Signal Processing, Computer-Assisted ; Wavelet Analysis

Objective To assess the value of clinical applications of whole-body diffusion-weighted imaging (WB-DWI) in diagnosing patients with malignant tumors compared with positron emission tomography (PET). Methods A total of 22 patients with highly suspected malignant tumors underwent WB-DWI after PET. The differences between the two imaging methods were compared in displaying lesions, and the correlation between ADC and SUV value was analyzed. Results More lesions were showed with WB-DWI than PET. There was no significant difference between the two methods in detecting the lesions of lung, mediastinal septum or abdomen (P>0.05), but more lesions in skeleton were showed with WB-DWI (P<0.05). No significant correlation between ADC and SUV value was found. Conclusion Compared with PET, WB-DWI can detect more tumor lesions. The sensitivity of WB-DWI in detecting metastatic tumors of bone is higher than that of PET.