Anti-osteoporosis mechanism of Panax quiquefolium L. based on zebrafish model and metabonomics / 药学学报

In this study, we investigated the anti-osteoporotic activity and mechanism of action of extract of Panax quiquefolium L. based on zebrafish model combined with metabolomics technology. A zebrafish model of prednisolone-induced osteoporosis was used to compare the anti-osteoporotic activity of Panax quiquefolium L., and the expression of osteoblast-associated genes and osteoclast-associated genes in zebrafish was detected by quantitative real-time PCR (qRT-PCR), using bone fluorescence area and fluorescence density as evaluation indexes. Metabolomics based on ultra-high performance liquid chromatography-mass spectrometry (UPLC-MS) was used to explore the change patterns of biomarkers and the metabolic pathways affected. The results showed that the 50% ethanol extracts of Panax quiquefolium L. from Jilin, Canada, Wenden and the United States can significantly improve the bone fluorescence area of zebrafish compared with model group. Furthermore, four sources 50% ethanol extracts of Panax quiquefolium L. except United States also can significantly improve the bone fluorescence density of zebrafish. In addition, PCR showed that extract of Panax quiquefolium L. can significantly up-regulated the expression of vitamin D receptor b (vdrb), collagen type I α2 (col1a2) and cysteine-rich acidic secreted protein (sparc) genes, and down-regulated the expression of matrix metalloproteinase 9 (mmp9), anti-tartrase acid phosphatase (trap) and cathepsin K (ctsk) genes. Metabolomic analysis identified 24 key differential metabolites. Furthermore, pathway analysis showed that Panax quiquefolium L. could regulate the levels of 10 key biomarkers by participating in purine metabolism, tricarboxylic acid cycle and pentose phosphate metabolism and improve the osteoporosis status of zebrafish. This study preliminically revealed the anti-osteoporosis mechanism of 50% ethanol extract from Panax quiquefolium L. through multi-component, multi-target and multi-pathway and also provides theoretical basis for clinical development and utilization of anti-osteoporosis products of Panax quiquefolium L. This experiment was approved by the Experimental Animal Welfare Ethics Committee of the Institute of Biology, Shandong Academy of Sciences (approval number: SWS20181002).

Metabolic stability and metabolic enzyme phaenotypes of lanceolatin B in liver microsomes of different species by UPLC-MS/MS / 中国中药杂志

To investigate the metabolic stability and parameters in vitro of lanceolatin B in liver microsomes of rats, human, Beagle dogs, and monkeys, and to identify the phaenotypes of CYP enzymes of lanceolatin B by using the liver microsome incubation system in vitro. After incubated with different species of liver microsomes, lanceolatin B was quantified by UPLC-MS/MS method to evaluate its metabolic stability and metabolic kinetic parameters in vitro. Lanceolatin B was incubated with specific inhibitors of CYP450 isoforms (CYP2E1, 2C19, 1A2, 2D6, 2C9, 3A4, and 2A1) to determine the phaenotypes of metabolic enzymes. The results showed that lanceolatin B was metabolized in the liver microsomes of rats and monkeys but not in the human and Beagle dogs. Their in vitro half-life T1/2 and intrinsic clearance rate CLint in rat and monkey liver microsomes were 11.57,8.07 min, and 0.12,0.17 mL•min⁻¹•mg⁻¹ without significant difference. The results of metabolic phenotyping indicated that CYP1A2 was mainly involved in the metabolism of lanceolatin B. There existed a difference in the metabolism of lanceolatin B in different types of liver microsomes. Several of CYP450 isoforms metabolized lanceolatin B together in liver microsomes of rats, in which CYP1A2 was the major enzyme mainly responsible for the metabolism of lanceolatin B.

Academic discussion of adverse reaction of clinical trials of new traditional Chinese medicines and relevant influencing factors / 中国中药杂志

Data of clinical trial projects involved by clinical trial institutions certified by the State Food and Drug Administration from 2002 to November 2012 were collected to summarize adverse reactions in project summary/statistical reports, analyze the rate of adverse reactions of clinical trials of new traditional Chinese medicines and relevant influencing factors, and increase the awareness of the safety of new traditional Chinese medicines. A total of 73 050 cases in 209 projects of 14 specialties were collected, including 49 689 cases in the new traditional Chinese medicine group and 271 adverse reaction cases, with an incidence rate of adverse reactions at 0.55%. The adverse reaction rate in 3 months < middle long course ≤ 6 months was the highest (1.04%), whereas that in short course ≤ half a month was the lowest (0.48%). The adverse reaction was closely related with the route of administration, 1.28% for topical > 0.63% for injection > 0.50% for oral. In the administration of only the test drug, the adverse reaction rate of patches was the highest (2.68%), whereas that of aerosols and suppositories was lowest (0). In the combined administration of the test drug and the simulation agent, the adverse reaction rate of external test patch + capsule was the highest (3.38%), whereas that of capsule + oral liquid, pills + granules, tablets + oral liquid, tablets + pills, tablet + capsule was the lowest (0). In the administration of only the test drug, the adverse reaction rate was 0.47%; In the combined administration with simulation agent (drug volume increase), the adverse reaction rate was 0.74%. Different doses caused adverse reaction different rates; The adverse reaction rate of drugs with whole-course dose between 1 100-1 200 g was the highest (3.36%), that for whole-course doses of 500-600, 900-1 000, 1 400-1 500, 1 600-1 700, 1 800-1 900 g was the lowest (0). In conclusion, the adverse reaction rate of new traditional Chinese medicines was still up to 0.55%, with the adverse reaction rate between 0.47% and 0.72% over the 11 years, without significant difference in each year. The adverse reaction rate was closely related to course of treatment, approach of administration, dosage form and medication dosage, with no significant correlation with medication dosage during the course of treatment. The adverse reaction rate increased with the rise in trial duration and drug volume. In the administration of only the test drug, the adverse reaction rates of external formulations and injections were higher than that of oral dosage forms. It is suggested to give more attention to the adverse reactions of drugs with long course of treatment and large volumes, injections and external patches in clinical trials of new traditional Chinese medicines.

Primary study of skin wound healing in rats for Loropetalum chinens / 中国中药杂志

<p><b>OBJECTIVE</b>Cutaneous wound is a common health problem of humans. Loropetalum chinens, a medicinal plant, is widely used to treat wounds among the people. The research aims to observe whether L. chinens can promote the rats' wounds healing process, isolate the extracts primarily and commit the wound healing selection, which provide work basis for wound healing research of L. chinens.</p><p><b>METHOD</b>First we analyzed the possible components with HC-MS/MS, then committed our wound healing experiments for L. chinens in the rat incision wound model and excision wound model, which are commonly used worldwide. After that, we carried on the preliminary isolation of the L. chinens and we screened the heal-promoting effects of the isolations in incision wound model.</p><p><b>RESULT</b>L. chinens significantly accelerates the wound healing of rat's skin, shortens the healing period, enhances the healing intensity and promotes the cell proliferation and blood vessels formation around the wounds. The isolations, which are petroleum ether layer, ethyl acetate layer and n-butyl alcohol layer, exert heal-promoting effects. It indicates that the possible morphon that promotes wound healing may exist in these three components, with small polar.</p><p><b>CONCLUSIONS</b>L. chinens possesses strong wound healing promoting effects, and the active constituent, with small polar, exists in petroleum ether layer, ethyl acetate layer and n-butyl alcohol layer, and we should focus on these three layers when carrying on further studies.</p>

Survey of patients with chronic hepatitis B to identify factors that influence quality of life / 中华肝脏病杂志

<p><b>OBJECTIVE</b>To survey patients with chronic hepatitis B (CHB) to determine their perceptions of CHB-related quality of life (QOF) and to determine the factors influencing this measure.</p><p><b>METHODS</b>A total of 268 patients with CHB (disease group) and 205 healthy individuals (control group) completed the World Health Organization (WHO)QOL-BREF life assessment survey and a self-designed questionnaire of health and QOL. The groups' responses were comparatively analyzed by the cluster sampling method and the independent samples t-test. The strength of influence of each factor on the patients' perceptions of QOL was determined by multiple stepwise regression and one-way ANOVA.</p><p><b>RESULTS</b>The disease group had significantly lower scores than the control group for overall QOL (62.88 ± 8.22 vs. 67.31 ± 5.82), the physiological area (PHYS: 64.71 ± 15.05 vs. 73.21 ± 11.26), the psychological area (PSYCH: 64.35 ± 14.71 vs. 68.94 ± 10.13), the social relations area (SOCIL: 67.20 ± 12.98 vs. 69.83 ± 8.65), the environmental area (ENVIR: 59.58 ± 13.23 vs. 63.97 ± 10.24), the QOL self-assessment (60.75 ± 21.54 vs. 66.90 ± 17.57) and the health self-assessment (58.13 ± 19.15 vs. 76.26+/-14.27) (all, P less than 0.05). Multiple stepwise regression analysis identified the following parameters as risk factors of PHYS: depression (P less than 0.001), perception of being seriously ill (P less than 0.001), self-payment for treatment (P = 0.003), CHB significant impact on income (P = 0.002), poor appetite (P = 0.002), langur (P less than 0.001), and fear of infecting others (P = 0.022). Confidence of treatment was a protective factor of PHYS (P = 0.001). The risk factors of PSYCH were depression (P less than 0.001) and recurrence (P less than 0.001), and the protective factors were confidence of treatment (P = 0.003) and male sex (P = 0.014). The risk factors of SOCIL were depression (P less than 0.001, dissatisfaction with the attitude of the people around (P = 0.001), recurrence (P = 0.008), and advanced age (P = 0.009), and the protective factors were social support (P less than 0.001) and confidence of treatment (P = 0.015); however, the scores were significantly different for different occupations (P = 0.008). The risk factors of ENVIR were depression (P less than 0.001), dissatisfaction with the attitude of the people around (P less than 0.001), living in rural area (P = 0.007), and recurrence (P = 0.016).</p><p><b>CONCLUSION</b>Patients should be monitored for depressive symptoms during the course of clinical medical care for CHB so that psychological care may be initiated in a timely manner. It is important to strengthen communication between healthcare professionals and patients in order to improve the patient's perception of social support and quality of life.</p>

Distribution of Chinese medicine syndrome patterns and its laws in patients with polycystic ovarian syndrome / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To study the distribution laws of the Chinese medicine syndrome patterns and its correlated symptoms in patients with polycystic ovarian syndrome (PCOS), and the possible correlation between Chinese medicine syndrome patterns and PCOS associated parameters, thus to provide a guidance for selecting proper indices in curative effectiveness assessment.</p><p><b>METHODS</b>Using clinical epidemiological methods and mathematical statistics, the Chinese medicine syndrome patterns were studied in 228 PCOS patients. The distribution features of Chinese medicine syndrome patterns were summarized.</p><p><b>RESULTS</b>Shen-deficiency blood-stasis syndrome was the most frequently seen in PCOS patients, followed by Pi-deficiency phlegm-dampness syndrome, Pi-Shen yang-deficiency syndrome, and Shen-yin deficiency syndrome. Positive correlation existed between serum levels of follicle stimulating hormone (FSH) and Pi-Shen yang-deficiency syndrome. Positive correlation existed between fasting blood sugar (FBS), waist to hip ratio (WHR), body mass index (BMI), fasting insulin (FIN), and Hirsutism score and Pi-deficiency phlegm-dampness syndrome. Positive correlation existed between serum levels of prolactin (PRL), estradiol (E2 ) and qi stagnancy and blood stasis syndrome. Positive correlation existed between serum progesterone (PRG) level, FSH, FIN, BMI, acne score and Gan stagnancy and blood heat syndrome. Positive correlation existed between luteinizing hormone (LH) and Shen-deficiency blood-stasis syndrome. Besides, LH/FSH >3 was possibly more frequently seen in Pi-deficiency phlegm-dampness syndrome and Pi-Shen yang-deficiency syndrome. Family heritability could be seen in each syndrome patterns. Among them, female heritability was more often seen in Shen-deficiency blood-stasis syndrome, while male heritability was more often seen in Shen-yin deficiency syndrome.</p><p><b>CONCLUSIONS</b>Shen-deficiency blood-stasis syndrome, Pi-deficiency phlegm-dampness syndrome, Pi-Shen yang-deficiency syndrome, and Shen-yin deficiency syndrome were most frequently seen in PCOS patients. The sex hormones (including 6 items), FBS, FIN, WHR and BMI, etc. were correlated with each Chinese medicine syndrome pattern to various extents, which could be taken as reference in Chinese medicine syndrome differentiation.</p>

Advances in Natriuretic Peptide Study(review) / 中国康复理论与实践

@#The natriuretic peptide(NP) system is an endocrine system that maintains fluid and pressure homeostasis by modulating cardiac and renal function.NP levels are elevated in patients with heart failure(HF) and other cardiac diseases.They are early warning system to help to identify patients at high risk for cardiac events.Measurement of NPs may be used to aid diagnosis and prognosis.NPs also can exert important anti-proliferative,anti-fibrotic effects to prevent the remodification in the heart with myocardial infarction and advanced HF.Brain natriuretic peptide is an important biomarker in patients with HF and other cardiovascular diseases,such as pulmonary hypertension and atherosclerotic vascular disease.In addition,synthetic NPs such as nesiritide could be used to treat the patients with acutely congestive HF. These Recombinant drugs are also being investigated for myocardial and renal protection in the setting of cardiac surgery and for prevention of cardiac remodeling.

Expression of testosterone in the rapid growing rat condylar cartilage and the expression changes after the function mandibular advancement / 华西口腔医学杂志

<p><b>OBJECTIVE</b>To investigate the expressions of Testosterone in the condylar cartilage of rapid growing rats.</p><p><b>METHODS</b>The mimic functional appliances were used in experiment groups and rats were killed after 3 days, 1 week, 2 weeks, 3 weeks and 4 weeks. Immunohistochemical technique was used to detect the expression of T.</p><p><b>RESULTS</b>T was expressed throughout the condylar cartilage. The Highest expressions were in mature layers of both experiment and control groups. Along with the maturation, the expressions of T in the condylar cartilage were changed respectively, and the immunostain levels in the mature layer of experiment groups 2 and 3 weeks were higher than those of control groups (P < 0.05).</p><p><b>CONCLUSION</b>1. T is a member of cartilage growth and development control system. 2. The orthopedic mechanism of functional appliance may be conducted by T.</p>

Treatment of prolapsed hemorrhoids with circular stapler / 中华外科杂志

<p><b>OBJECTIVE</b>To evaluate the efficacy and safety of circumferential mucosectomy procedure for treatment of prolapsed hemorrhoids (PPH).</p><p><b>METHODS</b>From June 2001 to June 2003, 74 patients (27 men and 47 women) with an average age of 57 years (ranging from 31 to 80 years), with prolapsed hemorrhoids III - IV degree underwent PPH using a circular stapler.</p><p><b>RESULTS</b>69 (93.2%) patients were fully satisfied with results. Two patients underwent simultaneous rectal polypectomy along with PPH hence required analgesic treatment for 5 days. Three patients experienced bleeding during or after operation, 1 case bleeding was due to ulcerative hemorrhoid, while the bleeding the remaining 2 cases was (bleeding about 300 ml) caused by insufficient anastomosis, thus extending operating time to 1 hour. The average operation time (70 patients) was 13 minutes (range 10 - 15 minutes). The mean hospitalization was 3.5 days (2 - 4 days), with exception of 2 patients lasting 1 week.</p><p><b>CONCLUSION</b>PPH is a safe, effective and rapid method for treatment of prolapsed hemorrhoids, The procedure causes minimal pain with decreased complications.</p>

Clinical Research on Lingzhu Infusion and Shenqi Capsule Sequential Therapy for Polycystic Ovarian Syndrome / 中医杂志

Objective To explore the therapeutic effect of Lingzhu Infusion and Shenqi Capsule sequential therapy in combination with clomiphene citrate(CC)for polycystic ovarian syndrome(PCOS).Methods The 90 PCOS cases in accordance with the enrol- ment standard were randomized into three groups.The treatment groupⅠwas treated with Lingzhu Infusion and Shenqi Capsule se- quential therapy,the treatment groupⅡwas treated with Lingzhu Infusion and Shenqi Capsule sequential therapy and CC,and the control group was treated with CC only.The therapeutic effect was evaluated after two courses of treatment.Results After treat- ment,the changes of TCM syndromes and serum sex hormone indices,ovulation rate and conception rate of the treatment groupⅡwere all superior to those of the treatment groupⅠand the control group.Conclusion The effect of treatment groupⅠis similar to that of control group.The effect of treatment groupⅡis better than that of treatment groupⅠand control group,getting a higher ovulation rate and pregnancy rate.