RP-HPLC simultaneous determination of five isoquinoline alkaloid in Erhuang Xiaoyan tablets / 重庆医学

Objective To establish a method for determining five isoquinoline alkaloids (including berberine,jatrorrhizine,jatrorrhizind,coptisine and palmatine) in Erhuang Xiaoyan tablets simultaneously.Methods Determination by reversed phase high performance liquid chromatography (RP-HPLC).Column:YMC-Pack ODS-AM (4.6 mm× 250.0 mm,5 μm);mobile phase:elution with 0.1％ (v/v) formic acid aqueous solution-acetonitrile mobile phase gradient;flow rate:0.4 mL/min;injection volume:10 μL;detection wavelength:345 nm;column temperature:27 ℃.Results Five of isoquinoline alkaloids in Erhuang Xiaoyan tablets were separated perfectly.The good linear relationships were obtained in the following ranges,1.526 4-5.342 4μg (r=0.999 9) for berberine,0.403 2-1.411 2 μg (r=0.999 6) for palmatine,0.309 7-1.083 9 μg (r=0.999 8) for coptisine,0.111 2-0.389 2 μg (r=0.999 8) for jatrorrhizine and 0.162 2-0.567 7 μg (r=0.999 6) for epiberberine.The recoveries were 98.69％,98.66％,98.67％,98.67％ and 98.67％,respectively.Conclusion The method possesses high feasibility,strong specificity,high accuracy and good reproducibility,which can be used for the quality control of Erhuang Xiaoyan tablets.

Comparison of effects of electroacupuncture at "Dachangshu" (BL 25) or "Tianshu" (ST 25) on visceral sensitivity, c-kit and TRPV1 of irritable bowel syndrome rats / 中国针灸

<p><b>OBJECTIVE</b>To compare the effects of electroacupuncture (EA) at "Dachangshu" (BL 25) or "Tianshu" (ST 25) for visceral sensitivity, gene expression product c-kit of colonic Cajal interstitial cells (ICC) and capsaicin receptor 1 (TRPV1) of irritable bowel syndrome (IBS) rats, so as to investigate the effect and mechanism differences of EA at the back point and the front point of large intestine for IBS rats.</p><p><b>METHODS</b>Forty-two Wistar neonatal rats were randomly divided into a blank group (9 rats) and a model group (33 rats). IBS model was established with mother and child separation, acetic acid enema in young rats and colorectal dilatation method. Twenty-seven IBS rats in life were randomly divided into a model control group, a Dachangshu group and a Tianshu group, 9 rats in each group. EA (disperse-dense wave, 2 Hz/100 Hz, 0.1-0.3 mA) for 20 min was used at "Dachangshu" (BL 25) and "Tianshu" (ST 25) respectively in the Dachangshu and Tianshu groups, once every other day, totally 5 times. The rats in the model control group were fixed with soft cloth sleeve for 20 min, without acupuncture. No intervention was used in the blank group. The stool property Bristol grading score was recorded before and after intervention in each group. The visceral sensitivity was evaluated by abdominal withdrawal reflex. The latency until the first systolic wave occurred and the number of systolic wave within 90 s were observed. Immunohistochemical was used to detect the positive expressions of c-kit and TRPV1, the ICC colon specific marker.</p><p><b>RESULTS</b>Compared with the blank group, the Bristol score increased，latency period shortened, systolic wave number increased, c-kit and TRPV1 positive expressions increased in the model control group (all <0.01). Compared with the model control group, the Bristol score decreased, latency period increased, systolic wave number decreased, c-kit and TRPV1 positive expressions decreased after intervention in the Dachangshu and Tianshu groups (<0.05, <0.01). Compared with the Dachangshu group, the TRPV1 positive expression decreased after intervention in the Tianshu group (<0.05).</p><p><b>CONCLUSION</b>EA at "Dachangshu" (BL 25) or "Tianshu"(ST 25) can improve the diarrhea in IBS model rats, reduce the visceral sensitivity, and its mechanism may be related to regulating the expressions of colon c-kit and TRPV1. EA at "Tianshu" (ST 25) is more apparent for TRPV1 than at "Dachangshu" (BL 25).</p>

Relativity and integrality of the acupoint effect specificity / 中国针灸

The researches on the acupoint effect specificity were summarized to explore whether the integrality of the acupoint effect specificity existed and analyze the connection between the relativity and integrality of the acupoint effect specificity. The literature on the clinical and experimental researches relevant with the acupoint effect specificity was retrieved through CNKI from January 2007 to October 2017. A total of 39 papers met the retrieving criteria. Separately, in terms of the holism of TCM theory, the holism of meridian theory and modern research, the integrality of acupoint effect specificity was analyzed. The relativity and the integrality are indicated in the acupoint effect specificity. The integrality of acupoint effect specificity is closely related to the holism of TCM theory as well as the meridians. Just because of its integrality, the acupoint effect specificity is relative, rather than absolute.

Parental monitoring predict externalizing problem in adolescents: the mediating role of peer delinquency and the moderating role of psychoticism / 中华行为医学与脑科学杂志

Objective To explore the influence of parental monitoring,peer delinquency and psychoticism on externalizing problem in adolescents.Methods 2 504 adolescents aged 10-16 from 7 provinces in China participated in the surveys with externalizing problem,parental monitoring,peer delinquency and psychoticism were measured.The mediating effect of peer delinquency and the moderating effect of psychoticism were tested by stepped multiple linear regression and Bootstrap procedures.Results ①The scores of maternal monitoring,paternal monitoring,psychoticism,peer delinquency and externalizing problem were (4.02±1.00),(3.49±1.19),(3.10±2.77),(1.25±0.27) and (5.10±4.63) respectively;②Parental monitoring negatively predicted externalizing problem in adolescents(βmother =-1.240,βfather =--0.981,P＜0.05).③Peer delinquency played a partial mediating role in the relation between parental monitoring and externalizing problem,the percentages of mediating effect to total effect respectively were 25.0％ and 26.2％.④The mediation effect of peer delinquency was moderated by psychoticism (a1b3mother =-0.016,a1b3father =-0.014,P＜0.05).Conclusion Psychoticism moderated the mediation effect of peer delinquency in the relation between parental monitoring and externalizing problem in adolescents.

Effect of Acupuncture at Guanyuan (CV4) on Writhing Response and Vasomotor Substances in Rats with Dysmenorrhea Due to Coagulated Cold Syndrome / 上海针灸杂志

Objective To observe the analgesic effect of acupuncture at Guanyuan (CV4) and its effect on vasomotor substances in rats with dysmenorrhea due to coagulated cold syndrome. Method The coagulated-cold dysmenorrhea rat model was developed by Estrodiol benzoate and Oxytocin injectin plus physical freezing. The writhing response (writhing latency, writhing frequency, and writhing score) was observed, and the contents of TXB2 and 6-keto-PGF1a were detected by using enzyme-linked immunosorbent assay (ELISA). Result Compared with the saline water group, the writhing latency was significantly shortened, the writhing frequency was significantly increased, and the writhing score was more significantly increased in the model group (P0.05) in the model group. Compared with the model group, the content of plasma 6-keto-PGF1a showed an increasing tendency (P>0.05) and the content of plasma TXB2 showed a decreasing tendency (P>0.05) in the acupuncture group. Conclusion The vasomotor substances are obviously disordered in the blood of cold-coagulated dysmenorrhea rat models. Acupuncture at Guanyuan can improve the writhing response and release pain, and meanwhile positively regulate the vasomotor substances such as TXB2 and 6-keto-PGF1a. The vasomotor substances are plausibly one of the major substances in the action of acupuncture in preventing and treating dysmenorrhea.

Phase contrast magnetic resonance imaging of cerebrospinal fluid flow through the aqueduct of sylvius in chronic tension-type headache / 中南大学学报(医学版)

OBJECTIVE@#To study the cerebrospinal fluid (CSF) flow through the aqueduct of sylvius in chronic tension-type headache patients with phase contrast magnetic resonance imaging.@*METHODS@#Phase contrast magnetic resonance imaging (MRI) of the CSF flow through the aqueduct was obtained from 17 patients with chronic tension-type headache and 26 control subjects. A software for CSF flow was applied for MRI data analysis both qualitatively and quantitatively.@*RESULTS@#The CSF through the aqueduct flew in the caudal and cranial directions with the rhythm of the heartbeat in both groups. There were 2 types of flow curves: the smooth "U" and the wave, which were 25 vs 1 in the controls and 11 vs 6 in the patients (P<0.05), respectively. The mean caudocranial flow rate through the aqueduct was (0.235±0.157) mL/s vs (0.133±0.106) mL/s (P<0.05) and the velocity was (6.023±2.654) cm/s vs (3.479±2.364) cm/s (P<0.05), and the mean craniocaudal flow rate was (-0.358±0.201) mL/s vs (-0.190±0.141) mL/s (P<0.05) and the velocity was (-8.263±3.020) cm/s vs (-4.788±2.862) cm/s (P<0.05), respectively.@*CONCLUSION@#The CSF flow curve, rate and velocity through the aqueduct in the patients with chronic tension-type headache is anomalous in comparison with the controls.

Magnetic resonance imaging for active ankylosing spondylitis / 中南大学学报(医学版)

OBJECTIVE@#To diagnoze active ankylosing spondylitis (AAS) by magnetic resonance imaging (MRI).@*METHODS@#MRI of the sacroiliac joint (SIJ) was performed on 48 patients who were clinically diagnosed as probable AS without radiologic evidence of sacroiliitis. Among them 21 were diagnozed as active sacroiliitis with MRI, whose examination was terminated; 27 whose MRI of SIJ did not diagnoze as active sacroiliitis were performed MRI in the thoracic spine. The diagnostic criteria of MRI for AAS of SIJ and/or the thoracic spine were fomulated by consulting documents. The definite diagnosis of AAS was finally made after follow-up for half a year. The sensitivity and specificity of the MRI of SIJ and/or MRI of thoracic spine were assessed.@*RESULTS@#In the 48 patients without radiologic evidence of sacroiliitis, 38 were finally diagnosed as AAS, with established consensus criteria as reference standard. The sensitivity and specificity of the MRI of SIJ were 52.6% and 90.0%, and for the MRI of SIJ and/or the MRI of the thoracic spine 76.3% and 90.0%, respectively.@*CONCLUSION@#Clinically probable AS without MRI evidence of sacroiliitis, MRI of the thoracic spine can increase the sensitivity of AAS diagnosis.

Impact of renal denervation on expression of renalase and tyrosine hydroxylase in adult rats with spontaneous hypertension / 中南大学学报(医学版)

OBJECTIVE@#To investigate the impact of renal denervation on the blood pressure, plasma renalase content and expression of renalase and tyrosine hydroxylase (TH) in the idney of spontaneous hypertensive (SH) rats and to explore the role of renal denervation in lowering the blood pressure.@*METHODS@#SH rats were randomly assigned into a baseline group, a surgery (renal denervation) group, a sham group and a control group (n=48). WKY rats matched in age (n=12) served as a baseline control group. All rats were housed until 12 weeks old. Then, the rats in the baseline group and the WKY group were sacrificed whose blood and kidney were collected for examination. In the renal denervation group, the sham group and the control group, the blood pressure was monitored continuously. One week and 6 weeks after the renal denervation, 6 rats in each group were sacrificed whose blood and kidney were collected. ELISA was employed to measure the plasma renalase and Western blot assay done to detect the expression of TH and renalase in the kidney.@*RESULTS@#Compared with WKY rats, blood pressure significantly increased and TH protein expression markedly elevated (P0.05). No pronounced differences in the above variables were found between the sham group and the control group at any time point (P>0.05).@*CONCLUSION@#Renal denervation can lower the blood pressure, which may attribute to the suppression of sympathetic nerves, increase in plasma renalase content and renalase expression in the kidney.

Epidemiological status and risk factors for hypertensive disorder complicating pregnancy in a district in Changsha / 中南大学学报(医学版)

OBJECTIVE@#To comprehend the epidemiological status and risk factors in hypertensive disorder complicating pregnancy (HDCP) in a district in Changsha, and to provide epidemiological evidence for early intervention of HDCP.@*METHODS@#A total of 2 148 pregnant women in a district in Changsha from 2008 to 2009 were retrospectively analyzed and the related factors were evaluated by multivariate unconditional logistic analysis.@*RESULTS@#The incidence of HDCP was 5.21% from 2008 to 2009. Multivariate unconditional logistic regression analysis showed that age (>35 years old)(OR=6.440,95%CI:2.987-13.884), body mass index (BMI) before pregnancy (OR=2.180,95%CI:1.619-2.936), and history of diabetes or kidney disease (OR=14.221,95%CI: 3.990-50.684) were risk factors for HDCP.@*CONCLUSION@#Age, BMI before pregnancy, and history of diabetes or kidney disease are risk factors for HDCP, while gravidity, parity, number of abortion and multiple gestation pregnancy have no obvious correlation with HDCP.

Measurement of intracranial hematoma volume by personal computer / 中南大学学报(医学版)

OBJECTIVE@#To explore the method for intracranial hematoma volume measurement by the personal computer.@*METHODS@#Forty cases of various intracranial hematomas were measured by the computer tomography with quantitative software and personal computer with Photoshop CS3 software, respectively. the data from the 2 methods were analyzed and compared.@*RESULTS@#There was no difference between the data from the computer tomography and the personal computer (P>0.05).@*CONCLUSION@#The personal computer with Photoshop CS3 software can measure the volume of various intracranial hematomas precisely, rapidly and simply. It should be recommended in the clinical medicolegal identification.

Effect of preoperative transcatheter arterial chemoembolization on apoptosis of hepatocellular carcinoma cells / 中华医学杂志(英文版)

<p><b>OBJECTIVE</b>To evaluate the effect of preoperative transcatheter arterial chemoembolization(TACE) on apoptosis of hepatocellular carcinoma (HCC) cells.</p><p><b>METHODS</b>A total of 136 patients with HCC underwent liver resection. One to five courses of TACE prior to liver resection were performed in 79 patients (TACE group), in which one to four courses of chemotherapy alone were performed in 11 patients (group A), one to five courses of chemotherapy combined with iodized oil were performed in 33 patients (group B), one to three courses of chemotherapy combined with iodized oil and gelatin sponge were performed in 23 patients group C) and one to three courses of chemotherapy combined with iodized oil, ethanol and gelatin sponge were performed in 12 patients (group D). The other 57 patients only received liver resection (non-TACE group). The extent of apoptosis was analyzed by transferase-mediated dUTP nick end labeling (TUNEL) staining. The expressions of Bcl-2 and Bax protein were detected by immunohistochemical method.</p><p><b>RESULTS</b>The apoptotic index(AI) and level of Bax protein in HCC cells were significantly higher in groups A, B, C and D than those in the non-TACE group (P < 0.05). The level of Bcl-2 protein and ratio of Bcl-2 to Bax protein of HCC cells were significantly lower in Groups A, B, C and D than those in the non-TACE group (P < 0.05).</p><p><b>CONCLUSION</b>Preoperative TACE regimens may enhance apoptosis of HCC cells by up-regulating the expression of Bax protein and down-regulating the expression of Bcl-2 protein and ratio of Bcl-2 to Bax protein expression.</p>

Evaluation of uterine and fibroid blood supplies before and after uterine artery embolization with dynamic enhanced CT scan / 介入放射学杂志

Objective To research the blood supply changes of uterine and fibroid before and after UAE for uterine fibroids.Methods Sixteen patients with symptomatic uterine myoma were treated by Seldinger's bilateral uterine arteries embolization.The same level dynamic enhanced CT scans were undertaken 7 days before and after the procedure with another one 3 months later.The CT values of uterine and fibroid were measured and analyzed. Results 16 cases finished the same level dynamic CT enhancement scans successfully. The dynamic enhanced curves and the CT values showed no significant difference in uterine but had significant difference in fibroids. The fibroids were in a state of ischemia after the procedure.Conclusions Selective uterine arterial embolization is a new safety and effective method for treatment of uterine myoma.

Image Diagnosis of Bone Destruction with Soft-tissue Tumor in Sacrum (An Analysis of 26 Cases) / 实用放射学杂志

Objective To analyze the image diagnosis and differential diagnosis of bone destruction with soft-tissue tumor in sacrum.Methods 26 cases patient proved by surgically and pathologically were retrospectively reviewed, including chordoma (n=8) , giant cell tumor (n=5), tuberculosis(n=5),metastatic cancer(n=3), sarcoma(n=2), and malignant neurofibroma, osteomyelitis, eosinophilic granuloma in one each.Results All cases image manifested as different kinds of bone destruction and soft-tissue tumor in sacrum , pelvis organ were moved.Conclusion A reliable diagnosis can be made by the shape a bone destruction , location characterization of soft-tissue tumor and the age.

Diffusion-weighted Imaging of MRI in Acute Cerebral Stroke / 中国医师杂志

Objective To analyze the diffusion properties of acute cerebral stroke to understand the effects of infarct and hematoma on diffusion-weighted MR images of patients with acute cerebral stroke. Methods 25 acute cerebral infarcts, 22 intracranial hematomas and 5 hemorrhagic infarctions were studied with CT, conventional and diffusion MR imaging. The DWI and ADC parameters of acute cerebral stroke were analyzed. Results The DWI images of 25 acute cerebral infarcts, 1 hyperacute hematoma, 2 acute hematomas and 3 subacute hematomas were hyperintensity, and that of 8 early subacute hematomas were hypointensity. The DWI images of early stage of 4 chronic hematomas were hyperintensity at center and hypointensity at periphery, and that of late stage were hypointensity. The DWI images of acute hemorrhagic infarctions had both the hyperintensity and hypointensity. Meanwhile, the ADC images of majority of the lesions were hypointensity. Conclusion DWI could reflect the diffusion properties of different types of cerebral strokes and play an important role in evaluating the strokes.

Resting State Functional Magnetic Resonance Imaging in Patients with Schizophrenia and Control Subjects / 中国临床心理学杂志

Objective: To explore whether abnormal brain activity exists in schizophrenics during resting state by fMRI technique and regional homogeneity(ReHo)approach. Methods: fMRI images were obtained in resting state from 18 patients with schizophrenia diagnosed with the DSM-Ⅳ criteria and 18 control subjects. The newly published ReHo approach was applied for fMRI data analysis. Results: Patients with schizophrenia showed decreased ReHo of BOLD signal in resting brain compared with control subjects(P