ABSTRACT
<p><b>OBJECTIVE</b>Stomach physiological effects of channel tropism of stomach, cold & cool Chinese herbal medicine on rats with stomach-heat syndrome were studied.</p><p><b>METHOD</b>Using water decoction of warm &heat medicine, Rhizoma Zingiberis to feed rats for 15 days continuously, causing the stomach-heat sydrome model, then decoction of Rhizoma Coptidis, Herba Taraxaci, Fractus Aurantii Immaturus was used to feed rats for 10 days, respectively. Biochemical indexes of blood reflecting the physiological function of stomach, including thromboxaneB2 (TXB2), 6-keto-PGF(1alpha), Gastrin (Gas), Motilin (MTL), and Somatostation (SS) were measured by radioimmunoassay.</p><p><b>RESULT</b>Symptom of stomach-heat syndrome prevailed in body of rats after filled with decoction of Rhizoma Zingiberis, values of TXB2/6-keto-PGF(1alpha), MTL, and Gas in blood raised up evidently, compared with the control (P < 0.05), but values of 6-keto-PGF(1alpha). decreased conspicuously (P < 0.05). After treated with decoction of Rhizoma Coptidis, Herba Taraxaci or Fractus Aurantii Immaturus for 10 days, respectively. Symptoms of stomach heat syndrome were eliminated or alleviated, values of 6-keto-PGF(1alpha), and SS in blood elevated at different degrees, and those of TXB2, TXB2/6-keto-PGF(1alpha), MTL, and Gas felled down at different degrees. Difference of efficacy existed at different groups, group of Rhizoma Coptidis was the strongest, group of Herba Taraxaci was the second, group of Fractus Aurantii Immaturus was the third. Efficacy of medicine in groups with high dosage was stronger than those with low dosage.</p><p><b>CONCLUSION</b>Channel tropism of stomach, cold and cool Chinese herbal medicine could improve the physiological functions of stomach effectively, and the efficacy concerns with the degree of their cold and cool characteristics.</p>
Subject(s)
Animals , Male , Rats , 6-Ketoprostaglandin F1 alpha , Blood , Citrus , Chemistry , Coptis , Chemistry , Drugs, Chinese Herbal , Pharmacology , Therapeutic Uses , Gastrins , Blood , Zingiber officinale , Medicine, Chinese Traditional , Motilin , Blood , Phytotherapy , Plants, Medicinal , Chemistry , Random Allocation , Rats, Sprague-Dawley , Somatostatin , Blood , Stomach Diseases , Blood , Drug Therapy , Syndrome , Taraxacum , Chemistry , Thromboxane B2 , BloodABSTRACT
<p><b>OBJECTIVE</b>To establish and evaluate a new method for measurement of dental plaque by using cellular neural network-based image segmentation.</p><p><b>METHODS</b>A total of 195 subjects were selected from community population. After dental plaque staining, oral digital picture of anterior teeth area was taken by an Olympus digital camera (C-7070 Wide Zoom). At the same time, the Turesky dental plaque indices of anterior teeth were evaluated. The image analysis was conducted by cellular neural network-based image segmentation.</p><p><b>RESULTS</b>The image cutting errors between two operators were very small. The Kappa value is 0.935. Pearson's correlation coefficient is 0.988 (P < 0.001). There was high correlative consistency between traditional dental plaque index and plaque percentage obtained by using image analysis. Pearson's correlation coefficient was 0.853 (P < 0.001).</p><p><b>CONCLUSIONS</b>Cellular neural network-based image segmentation is a new method feasible for evaluating dental plaque.</p>
Subject(s)
Female , Humans , Male , Dental Plaque , Diagnosis , Dental Plaque Index , Image Processing, Computer-Assisted , Neural Networks, Computer , Photography, DentalABSTRACT
<p><b>OBJECTIVE</b>To investigate actions of protein and anthraquinone glucosides from Semen Cassia on learning and memory capacity and related substances of senile mice induced by D-galactose.</p><p><b>METHOD</b>The subacute senile mouse models induced by injection of D-galactose subcutaneously were used.</p><p><b>RESULT</b>Protein and anthraquinone glucosides from Semen Cassia could improve the learning and memory capacity of senile mice. Protein and anthraquinone glucosides from Semen Cassia not only inhibited the increase of malondialdehyde (MDA) in cerebrum of senile mice, but also enhanced the level of superoxide dismutase (SOD) in cerebrum and lessened the lipofuscin (LF) in liver tissue of senile mice. Protein from Semen Cassia could reduce the content of monoamine oxidase (MAO) in cerebrum of senile mice.</p><p><b>CONCLUSION</b>Protein and anthraquinone glucosides from Semen Cassia could improve the learning and memory capacity of senile mice and delay aging.</p>