OBJECTIVETo explore the effects of iptkalim on myocardial enzymes and free radicals metabolism with hypoxic pulmonary hypertension (HPH), in order to provide evidence for the mechanism of iptkalim on clinical treat.

METHODS110 young men stayed at high altitude above 5 000 m were divided into iptkalim group (n = 74) and placebo group (n = 36), aminotransferase (ALT), aspartate aminotransferase (AST), gamma-glutamyltransferase (gamma-GT), creatine kinase (CK), lactate dehydrogenase (LDH), superoxide dismutase (SOD), malonaldehyde (MDA), nitric oxide(NO) and nitric oxide synthase(NOS) were detected before and after took medicines for 6 mouths.

RESULTSAfter took medication for 6 mouths, ALT, AST, gamma-GT, CK and LDH were reduced, SOD, NO, and NOS were increased, MDA were reduced, there were very significant difference (P < 0.05).

CONCLUSIONOxygen free radicals have taken part in the process of HPH, iptkalim have the effect of anti-peroxidation of lipid and protect myocardial cells stress injured by hypoxia which related with mitochondrial membrane and cell membrane's K(ATP) channel activation.

Adolescent ; Adult ; Altitude ; Creatine Kinase ; blood ; Free Radicals ; metabolism ; Humans ; Hypertension, Pulmonary ; blood ; etiology ; metabolism ; Hypoxia ; complications ; L-Lactate Dehydrogenase ; blood ; Male ; Myocardium ; enzymology ; Potassium Channels ; agonists ; Propylamines ; pharmacology ; Young Adult

Objective To evaluate the clinical anesthetic efficacy of a combination of propofol and remifentanil for ultrasound-guided transvaginal oocyte retrieval.Pharmacodynamic (PD) model was established and its characteristics were analyzed based on the simulated concentrations of propofol and remifentanil in respective pharmacokinetic models, so as to guide further study.Methods Forty-two female patients undergoing transvaginal oocyte retrieval were divided into groups PR15 (n=24) and PR10 (n=18), who were received intravenous bolus of remifentanil 1.5 μg/kg + propofol 1.5 mg/kg and remifentanil 1.0 μg/kg+propofol 1.0 mg/kg, respectively.The anesthesia quality evaluation was based on the following indicators: onset time (loss of eyelash reflex), recovery time of orientation, the incidence of hypoxemia (SpO2 < 92%) and adverse reactions.Nonlinear mixed-effects model was used to evaluate the time courses of the simulated propofol and remifentanil concentrations-effect and to establish the PD model with NONMEM software.Results The time of recovering orientation in the patients of group PR10 was significantly faster compared with the patients in group PR15;the time of loss of eyelash reflex , incidence of hypoxemia (12.5% vs 16.7%) and cough (16.7% vs 11.1%) had no significant differences between the both groups.With the final PD model, the estimated parameters as following: EC50 of propofol and remifentanil for effective sedation and analgesia were 1.71 μg/ml and 2.57 ng/ml, respectively.EC95 of propofol and remifentanil for effective sedation and analgesia were 4.30 g/ml and 4.57 ng/ml, respectively.The effect site concentration of propofol 1 mg/kg was lower than EC50, but the effect site concentration of 1.5 mg/kg was higher than EC50.The peak effect site of 1.0 μg/kg and 1.5 μg/kg remifentanil was higher than EC50, and 1.5 μg/kg concentration was close to EC95.Conclusion Based on patients' recovery time, propofol 1.0 mg/kg combined with fentanyl 1.0 μg/kg is appropriate in patients undergoing transvaginal oocyte retrieval.

1000 IU/L,TBil 40～250 mg/L,and mild liver dysfunction at beginning of the disease,but acute severe hepatic lesion occurred due to the use of antibiotics,immunodepressant or NSAIDs.Three patients developed liver function failure and died,7 patients' liver function recovered to nor- mal by increasing dosage of glucocorticoid.Conclusion AOSD with mild liver dysfunction is frequently en- countered.During the treatment,acute severe hepatic lesion may occur due to certain drugs.Therefore,any drug used in AOSD with mild liver dysfunction should be cautious.Once acute severe hepatic lesion happens, increases the dosage of glucocorticoid promptly can improve prognosis.

Objective To examine the relationships between the level of serum visfatin and obesity,nonalcoholic fatty liver disease (NAFLD)in children and adolescents. Methods Serum visfatin levels of 106 obese children/adolescents (including 49 non-NAFLD children and adolescents and 57 NAFLD children/adolescents in which consisting of 42 mild ones,15 moderate-to-severe ones)with another 69 lean children/adolescents as their controls,were examined by indirect sandwich ELISA.Results When comparing the serum visfatin levels,there was no significant difference noticed between the obese group ( 1.71 ± 0.37) ng/ml and the lean group ( 1.75 ± 0.37) ng/ml (P=0.455).With the severity of NAFLD,the serum visfatin level showed an elevation in obese children and adolescents [ obese without NAFLD ( 1.59 ± 0.36) ng/ml,obese with mild NAFLD ( 1.74 ± 0.36) ng/ml,obese with moderate-to-severe NAFLD (1.97 ± 0.36) ng/ml,P＜0.05].In the obese group,serum visfatin levels seemed to be related to age (^β=-0.326,P=0.000),alanine aminotransferase (ALT) (^β =0.286,P=0.004) and the degree of NAFLD (^β =0.246,P＝0.014).Conclusion The level of serum visfatin was related to non-alcoholic fatty liver in obese children and adolescent.

Energy Metabolism ; Humans ; Oxygen Consumption ; Walking ; physiology ; Weight-Bearing ; physiology

OBJECTIVETo observe the preventive effect different compatibilities of Ramulus Cinnamomi (RC) and peony in Guizhi Decoction (GD) on diabetic cardiac autonomic neuropathy (DCAN).

METHODSTotally 60 male rats were randomly divided into 5 groups, i.e., the blank control DM group, the model group, the methycobal group, the 1:1 (RC/peony) Guishao group, the 2:1 Guishao group, and the 1:2 Guishao group, 10 in each group. Rats were pretreated with corresponding drugs for 1 week, and then induced diabetes by intraperitoneal injection of STZ. Drugs were administrated by gastrogavage for 4 more weeks after STZ-injection. Enzyme-linked immunosorbent assay (ELISA) was employed to detect levels of tyrosine hydroxylase (TH), choline acetyltransferase (CHAT), nerve growth factor. (NGF), and ciliary neurotrophic factor (CNTF) in myocardial homogenates.

RESULTSAfter 4-week modeling, body weight (BW) was obviously lower, but blood glucose (BG) was higher in STZ rats than in rats of the blank control DM group. There was no statistical difference in BW or BG among the 5 groups (P >0.05). Compared with the blank control group, TH, TH/CHAT, and NGF in left ventricle and ventricular septum increased, CHAT and CNTF increased in the model group (P < 0.05, P < 0.01). Compared with the model group, TH and TH/CHAT in left ventricle decreased (P < 0.05, P < 0.01), CNTF in left ventricle increased (P < 0.05), CHAT in left ventricle and ventricular septum increased (P < 0.05, P < 0.01) in the methycobal group. TH and TH/CHAT in left ventricle and ventricular septum decreased, CNTF in left ventricle and ventricular septum increased (P < 0.05, P < 0.01), CHAT in left ventricle and ventricular septum increased (P < 0.01), NGF in ventricular septum decreased (P < 0.01) in the 1:1 Guishao group. TH/CHAT in left ventricle decreased (P < 0.01), CHAT and CNTF in left ventricle and ventricular septum increased (P < 0.05, P < 0.01) in the 1:2 Guishao group. Compared with the methycobal group, CHAT in left ventricle decreased, TH and TH/CHAT in left ventricle increased in the 2:1 Guishao group (P < 0.05, P < 0.01). TH and TH/CHAT in ventricular septum decreased (P < 0.05), CHAT and CNTF in left ventricle and ventricular septum increased (P < 0.05, P < 0.01) in the 1:1 Guishao group. Compared with the 1:2 Guishao group and the 2:1 Guishao group, CHAT in left ventricle increased, TH/CHAT in left ventricle decreased, TH and TH/CHAT in ventricular septum decreased, CHAT in ventricular septum increased, CNTF in left ventricle and ventricular septum also increased in the 1:1 Guishao group (all P < 0.01).

CONCLUSIONSSTZ model rats had autonomic neural injury, manifested as lowered vagal nerve activity and hyperactive sympathetic nerves. GD could effectively suppress hyperactive cardiac sympathetic nerves and protect the vagus. Besides, GD (1:1) showed the optimal effect in regulating the balance of cardiac autonomic nerves and could be used in early prevention of DCAN.

Animals ; Blood Glucose ; Choline O-Acetyltransferase ; Diabetic Neuropathies ; drug therapy ; Drugs, Chinese Herbal ; therapeutic use ; Heart ; Heart Ventricles ; Male ; Myocardium ; Nerve Growth Factor ; Paeonia ; Rats ; Tyrosine 3-Monooxygenase

OBJECTIVE To investigate the effect of umbilical medicine moxibustion on the duration and degree of lower ab-dominal pain and extra time in bed of patients with primary dysmenorrhea.METHODS 75 patients with primary dysmenor-rhea were randomly divided into umbilical medicine moxibustion group,umbilical starch moxibustion group and sanyinjiao acu-puncture group with 25 cases in each group.Lower abdominal pain and the extra time in bed which caused by pain were evalua-ted by Cox Menstrual Symptom Scale before treatment,and in the 1st,2nd and 3rd menstrual cycle after treatment as well as in the follow-up menstrual cycles.RESULTS After treatment,in the second and the third menstrual cycles,the duration of the pain and degree of lower abdominal pain were decreased more significantly in umbilical medicine moxibustion group than those of the other two groups(P <0.05~0.01);extra time in bed decreased significantly in umbilical medicine moxibustion group than that of the sanyinjiao acupuncture group(P <0.01).At follow-up period,the duration and degree of lower abdomi-nal pain and extra time in bed decreased more in umbilical medicine moxibustion group those of the other two groups(P <0.05~0.01).CONCLUSION The duration and degree of lower abdominal pain and extra time in bed were remarkably decreased in umbilical medicine moxibustion group compared with the other two groups,especially at the second,third menstrual cycle after treatment and follow-up period.The therapeutic effect of umbilical medicine moxibustion lasts longer.

OBJECTIVETo explore the role of Notch signaling in human breast cancers, the expression of Notch1 and its ligand JAG1 in human breast cancers and their relationships with clinical stages of breast cancers were analyzed.

METHODSRT-PCR was used to detect the expression of Notch1 and JAG1 in 62 breast cancer specimens and 22 normal breast tissues at the margin of tumor sections, and the statistical difference of expression rates and standardized coefficient between the two groups were analyzed. To compare the expression intensity of Notch1 and JAG1 at different development stages of the illness and at different stages with or without axillary node metastasis.

RESULTSThe expression rate and standardized coefficient of Notch1 in human breast cancers were significantly higher than those of normal breast tissues at the margin of tumor sections. The expression rate of JAG1 in human breast cancers was 15%, while JAG1 was not detected in normal breast tissues at the margin of tumor sections. The standardized coefficient of Notch1 in cases with axillary node metastasis was significantly higher than that in cases without axillary node metastasis. The standardized coefficient of Notch1 at stage I was significantly lower than that at stage II, and stage II was significantly higher than stage III. There was no statistically significant difference between stage I and stage III.

CONCLUSIONNotch1 and JAG1 are highly expressed in human breast cancers, indicating that the aberrant expression and activation of Notch1 may be related with tumorigenesis of human breast cancer. Notch1 may play different roles at different developmentl stages of human breast cancer.

Adult ; Aged ; Breast ; metabolism ; pathology ; Breast Neoplasms ; genetics ; pathology ; Calcium-Binding Proteins ; genetics ; Cell Line, Tumor ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Intercellular Signaling Peptides and Proteins ; genetics ; Jagged-1 Protein ; Lymphatic Metastasis ; Membrane Proteins ; genetics ; Middle Aged ; Neoplasm Staging ; Receptor, Notch1 ; genetics ; Reverse Transcriptase Polymerase Chain Reaction ; Serrate-Jagged Proteins ; Signal Transduction ; genetics

Objective To investigate the iodine nutrition status of the target population living in the areas with low coverage rate of iodized salt and to provide a basis to prevent and control iodine deficiency. Methods The investigation was carried out in the areas with coverage rate of iodized salt lower than 80%, including 7 counties (city, district). Three townships(sub-district office) were sampled in each county and two elementary schools in each township(sub-district office). Urinary iodine level was measured for 40 children aged from 8 to 10 years old in each elementary school. Drinking water iodine was collected and determined in their living villages. Twenty salt samples were tested for iodine in salt from 20 house which had fertile women, and urine iodine of 10 fertile women were tested in each village. Results Sixty-two water samples were determined and the water iodine was ranged from 5.8 to 272.7 μg/L, of which 3 water samples were equal and more than 150 μg/L. Eight hundred and seventy-two salt samples were collected. The coverage rate of iodized salt was 70.74%(585/827) and the coverage rates were below than 80% in 5 counties (city, district). A total of 1660 children' urine samples were collected, the content of urine iodine ranged from 10.0 to 1088.0 μg/L and the urine iodine median was 173.7 μg/L. Four hundred and thirty-seven urine samples were collected from the fertile women and the urine iodine median was 179.1 μg/L. The iodine level of children and women was the highest in Dongguang County(251.8,273.8 μg/L) while that of Hejian County (130.8,118.7 μg/L) was the lowest. Conclusions Although the iodine nutrition of children and fertile women is appropriate in areas with low coverage rate of iodized salt, we presume from the results that the possibility of iodine deficiency in pregnant and lactating women exists in Hejian and Anping.

OBJECTIVETo investigate the importance of TLICS classification to surgical options of thoracolumbar fractures by analyzing the cause of intravertebral vacuum sign, vertebral collapse and vertebral pseudarthrosis.

METHODSFrom January 2006 to December 2010, the clinical data about 15 patients with postoperative complications by thoracolumbar fracture after posterior internal fixation were retrospectively analyzed. There were 9 males and 6 females, ranging in age from 18 to 75 years, with an average of 54.6 years. Of them, fracture site in T12 was 7 cases, L1 was 5 cases, L2 was 3 cases; compression fractures was in 12 cases and burst fracture was in 3 cases; according to classification of TLICS, 12 cases were of type I ,3 cases of type III. And the causes of complications after posterior fixation were analyzed according clinical manifestation and imaging finding combined with review literatures.

RESULTSAfter 10 to 20 months following-up (with average of 15 months), loss of vertebral height found in 9 cases (4 cases existed vertebral collapse, as well as 3 cases occurred screw loosening) and Intravertebral Vacuum Sign appeared in 6 cases.

CONCLUSIONIn order to avoid the vertebral vacuum and fixation failure, the clinical data of patients should be roundly and carefully evaluated, surgical indications should be strictly controlled and the surgical approach should be selected according to correct classification. Particularly, the reconstruction of the stability of former spinal column shoud be paid more attention.

Adolescent ; Adult ; Aged ; Female ; Fracture Fixation, Internal ; adverse effects ; Humans ; Lumbar Vertebrae ; diagnostic imaging ; injuries ; surgery ; Male ; Middle Aged ; Postoperative Complications ; diagnostic imaging ; etiology ; Retrospective Studies ; Spinal Fractures ; diagnostic imaging ; surgery ; Thoracic Injuries ; diagnostic imaging ; surgery ; Tomography, X-Ray Computed ; Young Adult