Adolescent ; Female ; Humans ; Premenstrual Syndrome ; etiology ; physiopathology ; therapy

Xanthii Fructus is a traditional medicine for the treatment of nasal diseases in clinic, mainly come from the burs of Xanthium sibiricum with a worldwide distribution. By sorting and studying literature of Chinese medicine and comparing different figures recorded with the morphological description of several species from Xanthium (Asteraceae) in the Flora of China, combining the biological investigation in resource survey, the article pointed out that the burs or the whole herbs of X. mongolicum, as well as X. sibiricum, has been used by the traditional Chinese medicine in ancient time. It provides a reference for further studies in the future.
China ; Herbal Medicine ; history ; History, Ancient ; Medicine in Literature ; Medicine, Chinese Traditional ; history ; Xanthium ; anatomy & histology ; classification

Objective To explore the histocompatibility and plasticitity of hydroxyapatite/high-density polyethylene composite (HMPE). Design Experimental study. Participants Forty-five rabbits. Methods Rabbits were randomly devided into HA/PE, HA and PE surgical groups, every group included 15 rabbits. Osteoeetomy of orbital rim and implantation (HA/PE, HA and PE materials were used) were performed on 3 groups of the rabbits. At 1st week, 4th week, 8th week, 12th week and 24th week of postoperation, we took out the samples from the rabbits separately in each group and did histopathologic and electron microscope examinations. Main Outcome Measures Physical signs of the implant combination with the bone. The bone cell appeared in the implants. Results After 12 weeks, the calcium salts deposit like bone plate with some osteoblast inside the HA/PE implants was observed. After 8 weeks, the calci- um salts deposit inside the HA plants was observed. In the PE implants, nothing could be seen but some fibrous connective tissue. Conclusion HMPE is an ideal repair material especially for orbital bone.

AIM: In order to evaluate and effectively control the quality of the Tibetan crude drug Herpetospermum pedunculosum,RP-HPLC fingerprint researches were conducted. METHODS: The gradient elution was applied in chromatographic separation,and 10 batches of samples from different producing areas were tested. RESULTS: Fingerprint chromatograms had a high similarity from different producing areas and batches showing 36 characteristic peaks in common. CONCLUSION: RP-HPLC is a repeatable method of controlling the fingerprint chromatograms,thus is practicable in the quality evaluation of Herpetospermum pedunculosum.Chemical components of samples from different producing areas and batches are similar,and the component ratios are stable.

Objective To observe the changes of hospitalization rates of patients with goiter in Lianyungang City in a coastal area with mild iodine deficiency in 2002-2010.Methods Medical reports of patients with goiter from county hospitals were studied at county level with a retrospective method.In accordance with the National Iodized Salt Monitoring Program,nine townships(towns) were taken from each county (district) [total of five counties(districts)]; four villages were selected from each township (town); salt samples were taken from eight households in each village,and salt iodine was determined using direct titration of sodium thiosulfate.Results The hospitalization rate of patient with goiter increased from 1.87/10 million in 2002 to 7.05/10 million in 2009,and then fluctuated to 6.06/10 million in 2010(x2 =281.91,P＜ 0.01).Among them,female's hospitalization rates were significantly higher than that of male 's(The variation range of x2 values were 35.23-116.04,all P ＜ 0.01),and the hospitalization rates of people over the age of 40 years were significantly higher than that of people less than 40 years of age(The variation range of x2 values were 33.04-263.04,all P ＜ 0.01),and the hospitalization rates of people in urban areas were significantly higher than that of people in rural areas (The variation range of x2 values were 18.35-140.00,all P ＜ 0.01).Average salt iodine was 27.61-30.13 mg/kg in 2002-2010.The coverage rate of iodized salt and the consumption rate of qualified iodized salt both increased year by year (x2 =183.75,211.99,P ＜ 0.01).There was a positive correlation between hospitalization rate of patient with goiter and coverage rate of iodized salt(spearman correlation coefficient was 0.83,P ＜ 0.05).There was a positive correlation between hospitalization rate of patient with goiter and the consumption rate of qualified iodized salt too (spearman correlation coefficient was 0.93,P ＜ 0.05).Conclusions In Lianyungang City,the hospitalization rate of patient with goiter,the coverage rate of iodized salt and the consumption rate of qualified iodized salt all show upward trend in 2002-2010.The relationship among them is worth further study.

Animals ; Astrocytes ; immunology ; metabolism ; Male ; Microglia ; immunology ; metabolism ; Neurons ; metabolism ; Oxidopamine ; metabolism ; Parkinson Disease ; immunology ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo explore the tumor growth inhibition of gamma secretase inhibitor MRK003 on human multiple myeloma xenograft mice by inhibition of AKT and Notch1 expression.

METHODSNOD/SCID mice were injected with human multiple myeloma cell lines RPMI8226 to establish a xenograft mouse model. Mice were randomized into two groups：the experimental group were injected with MRK003 at a dose of 5 mg× kg⁻¹×d⁻¹ for 14 days; the inhibitor was replaced by an equal saline in the control group. Mice were sacrificed by cervical dislocation on the next day after the last injection and tumor tissue was removed to detect the expression of Notch1 and AKT by immunohistochemistry.

RESULTSAfter subcutaneous injection with RPMI8226, mice had tumor formation in 5-7 days and the largest tumor block in 10-12 days. Before RPMI8226 injection, the mean sizes of tumor block in the experimental and the control groups were 509.2 mm³, 511.2 mm³(P>0.05). 9 days after injection, the mean sizes of tumor tissue in the experimental and the control groups were 636.6 mm³, 691.2 mm³(P<0.01). On the next day after the last injection, the tumor sizes of the experimental and the control groups were 683.5 mm³ and 1798.7 mm³(P<0.01). The size of tumor block in the experimental group was significantly smaller than that of the control group(P<0.01). Immunohistochemistry staining showed that the positive expression rates of Notch1(11.1%, P<0.01) and AKT(13.3%, P<0.01) in experimental group were significantly decreased compared with the control group(Notch1: 95.6%; AKT: 93.3%). Western blot results showed that Notch1 and AKT protein in experimental group were significantly lower than those in the control group.

CONCLUSIONMRK003 could inhibit the tumor growth of human multiple myeloma xenograft mice by downregulated expression of Notch1 signaling pathway.

Amyloid Precursor Protein Secretases ; antagonists & inhibitors ; Animals ; Cell Line, Tumor ; Cyclic S-Oxides ; pharmacology ; Humans ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Multiple Myeloma ; drug therapy ; metabolism ; Proto-Oncogene Proteins c-akt ; metabolism ; Receptor, Notch1 ; metabolism ; Signal Transduction ; drug effects ; Thiadiazoles ; pharmacology ; Xenograft Model Antitumor Assays

Water soluble extract (WSE) is an important index for the quality evaluation of Astragali Radix (AR). In this study, the WSE of the wild AR from Shanxi province (SX) and the cultivated AR from Gansu Province (GS) were compared. The WSEs of two types of AR were determined according to the appendix of Chinese pharmacopoeia. Then the WSEs were subjected to NMR analysis, and the obtained data were analyzed using HCA, PCA, OPLS-DA, microarray analysis, and Spearman rank analysis. In addition, the Pearson correlation of differential metabolites were also calculated. The results showed that the WSE content of GS-AR (37.80%) was higher than that of SX-AR (32.13%). The main constituent of WSE was sucrose, and other 18 compounds, including amino acids, organic acids, were also detected. Multivariate analysis revealed that SX-AR contained more choline, succinic acid, citric acid, glutamate, taurine and aspartate, while GS samples contained more sucrose, arginine and fumaric acid. In addition, the Pearson correlations between different metabolites of the two types of AR also showed apparent differences. The results suggested that the WSE of two types of AR differs not only in the content, but also in the chemical compositions. Thus, the cultivation way is important to the quality of AR. This study supplied a new method for the comparison of extract of herbal drugs.
Arginine ; analysis ; Aspartic Acid ; analysis ; Choline ; analysis ; Citric Acid ; analysis ; Drugs, Chinese Herbal ; analysis ; chemistry ; Fumarates ; analysis ; Glutamic Acid ; analysis ; Magnetic Resonance Spectroscopy ; Multivariate Analysis ; Phylogeography ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Succinic Acid ; analysis ; Sucrose ; analysis ; Taurine ; analysis

Conidial suspension was obtained from the Penicillium sp. DS9713a which could decompose PHB. Through screening a lot of mutants with the methods of transparent zones and flask culture, five strains were selected from starting strain treated with UV and their activity were higher than the original .The best mutant strain named DS9713a-CS01, it's enzyme activity was as 197.42% high as that of the original ,furthermore, the characters of crude enzyme were studied.

Objective To investigate quantitatively the thermal sensation characteristics of the patients with facial palsy and the value of quantitative thermal test (QTT) in prognostication.Methods The QTT threshold of the fore ear and cheek of 30 patients with peripheral facial palsy was tested,their facial nerve conduction velocity was measured,and House-Brackmann facial nerve grading system was used to estimate facial nerve function at 2～3 weeks,a month,two months and half a year post onset.Results It was found that 12 out of 30 patients had abnor- mal QTT threshold value;the majority of them suffered from herpes virus and diabetes.In those with abnormal QTT, 8 were with diabetes mellitus (account for 66.7%),3 with partial shingles (account for 25%),and 1 with positive serum virus infection (account for 8.3%).Those with normal QTT were significantly different from those with abnor- mal QTT,with regard to the House-Brackmann rating scores after 2 and 6 months post onset (P