OBJECTIVE:To investigate the effects and mechanism of total flavonoids from Armeniaca mume on depression in chronic stress depression model rats. METHODS:60 rats were randomly divided into normal saline group,model group,fluox-etine group(positive control,20 mg/kg)and total flavonoids from A. mume low-dose,medium-dose,high-dose groups(80,160, 240 mg/kg), 10 in each group. Except for normal saline group, the other groups adopted chronic unpredictable mild stress (CUMS)+solitary feeding condition to induce depression model. These groups were intragastrically administered,once a day,for 28 d. Changes of body mass and food intake,degree of preference for sugar were observed;forced swimming test and tail suspen-sion test were used to determine the time that rats did not move;open field test was used to determine the changes of residence time in central square,horizontal crossing lattice,standing times,modification times;tumor necrosis factor α(TNF-α),cortisol, interleukin 6 (IL-6),serotonin (5-HT) levels in serum after 24 h of last administration were determined. RESULTS:Compared with normal saline group,growth of body mass,food intake and sugar preference percentage in model group were decreased;the time that rats did not move was prolonged in forced swimming test and tail suspension test;residence time in central square was prolonged,while horizontal crossing lattice,standing times and modification times were decreased in open field test;serum levels of TNF-α,cortisol were increased,while IL-6,5-HT were decreased,with statistical significances (P<0.05 or P<0.01). Com-pared with model group,except that there were no obvious improvement in sugar preference percentage,the time that rats did not move in forced swimming test,modification times in open field test in total flavonoids from A. mume low-dose group and IL-6, 5-HT levels in serum in total flavonoids from A. mume low-dose,medium-dose groups,the above-mentioned indexes were obvious-ly improved in other groups (P<0.05 or P<0.01). CONCLUSIONS:Total flavonoids from A. mume can obviously improve the CUMS-induced depression in rats,and the mechanism may be related to inhibiting inflammation response,adjusting the hypothala-mus-pituitary-adrenal axis functions.

Objective To investigate the clinical features,critical laboratory parameters,and fetal monitoring methods in intrahepatic cholestasis of pregnancy(ICP).Methods A retrospective analysis of 21 cases of ICP suffered with fetal death in Women's hospital.School of Medicine.Zhejiang University from January 1999 to December 2010 were discussed.Results(1)The average age of ICP patients suffered with fetal death were(30.2±4.6)years old.Among them,4 cases were older than 35 years,six cases were multipara.oneo of them suffered stillbirth 2 year before.Twenty cases were singleton pregnancies and 1 cage was twin pregnancy.(2)All 21 cases of fetal death occurred in the third trimester,12 cases occurred before 37 weeks,9 cases after 37 weeks.Nine cases were diagnosed by ultrasound in outpatient clinics,fetal heart beat disappeared in 9 patients after admission because of ICP, two disappeared after labor, one during anesthesia before emergent surgery. Perinatal mortality rate of ICP was 0. 148% (21/14 184), and fetal death occurred from 29 to 41 weeks with an average gestational age of ( 33.8 ± 4. 2 ) weeks, ( 3 ) Puritus occurred in all 21 cases while 11 of them had pruritus all over the body. Ten pregnant women felt the fetal movement decreased or disappeared before diagnosis of fetal death. The glycocholic acid levels increased in all of the 21 cases. Among them, glycocholic acid levels in 11 cases were (21.49 -64. 48) μmol/L, while in 10 cases were ≥64. 48 μmol/L Serum bile acid levels elevated in 16 cases which had been analyzed ( the other 5 cases had not been checked ), and the highest level reached 270 μmol/L Serum alanine aminotransferase and aspartate aminotransferase were increased in 14 cases. Seven cases had their total bilirubin ＞21 μmoL/L, and 12 cases had their direct bilirubin levels significantly elevated. Among the 21 cases of ICP, 15 cases were in severe status, while the other 6 cases were mild. (4) Nine patients had no antepartum surveillance since fetal death were diagnosed before admission. The results of antepartum surveillance were as follows: 2 cases had nonreassuring nonstress test (NST), one had mild "V" type deceleration. Absence of diastolic flow in umbilical artery were found in 3 cases, and low fetal biophysical score was got in one case. ( 5 ) All 21 patients had vaginal delivery. Six of them delivered after natural contraction, and the remaining 14 cases delivered after oral intake of mifepristone and amniotic injection of ethacridine, or oxytocin induced labor within 48 hours, only one case delivered after additional dinoprostone suppositories. The appearance of fetus, placentas and membranes were normal, the lengths of umbilical cord were average. Four cases were found with cords binding the necks or the bodies. Eighteen cases had grade Ⅲ amniotic fluid with meconium-stained, and 2 cases complicated by oligohydramnios. Ten cases had their fetuses and placentas examined by pathologist. Among them, one case had multiple malformations, no more obvious pathological abnormalities were found in other fetuses. Pathologic examination showed that fibrin deposited around chorion and deciduas basalis, large vessels accompanied by calcification, degeneration,hemorrhagic infarction, and increased focal syncytial nodules could be seen in all of the ten placentas. Conclusions Fetal death in pregnant women with ICP of ten occurs after the contractions, Severe ICP may be a key factor that involved in the occurrence of fetal death. Up to now, there is no valid indicators in fetal monitoring, which can predict fetal death. Extensive assessment of the severity and careful antepartum surveillance should be achieved before timely termination of pregnancy.

Antenatal corticosteroid administration to women at risk of preterm delivery within 34 gestational weeks can effectively reduce the incidence of respiratory distress syndrome, intraventricular hemorrhage, and necrotizing enterocolitis in preterm infants. Due to concerns that antenatal corticosteroids may impair the development of the newborn's nervous system, there is a controversy regarding the use of antenatal corticosteroids in pregnant women ≥34 gestational weeks and those with complications. This article reviews the short- and long-term effects of antenatal corticosteroid administration on the nervous system of neonates born to women at different gestational ages and with comorbidities. More and higher-quality evidence is required for routine application of antenatal corticosteroids in pregnant women ≥34 gestational weeks.

Objective To study the influence of dihydromyricetin on the oxidation and non-enzymatic glycosylation in impaired glucose tolerance rats.Methods Animal model of impaired glucose tolerance rat was built by intragastrical(i.g.) injection of D-galactose generally.After 8 weeks intragastrical(i.g.) injection of dihydromyricetin(experimental group) and metformin (positive control),the levels of fasting blood glucose and tow-hour postprandial blood glucose,the insulin level and its resistance index,the levels of glycosylated hemoglobin (GHb) and advanced glycation end-products(AGEs) were detected,and the activities of superoxide dismutase(SOD) and glutathione peroxidase (GSH-Px),the content of malondiadehyde(MDA) were determined respectively.Results Compared with model group,dihydromyricetin decreased the level of two-hour postprandial blood glucose (P0.05).Conclusion Dihydromyricetin can significantly improve the state of impaired glucose tolerance rats; the mechanism may be related to its effect of improving the antioxidant activity of GSH-Px,inhibiting non-enzymatic glycation,lowering body oxidative stress and insulin resistance and promoting the use of blood glucose in peripheral organizations.

Objective To analyze the relationship between autism children and their familial factors,perinatal period high risk factors,blood lead level.Methods Familial factors,perinatal period high risk factors were investigated by autism risk factors questionnaire on 35 autism children diagnosed by diagnostic and statistical manual of mental disorder(DSM-Ⅳ,4th ed) and 35 age and sex-matched healthy children;blood lead level were detected by graphite furnace atomic absorption spectrometry.Results Maternal drug-taken history in pregnancy,neonatal asphyxia,neonatal jaundice and other factors were significantly related to children autism(Pa

OBJECTIVE:To compare the efficacy and safety of only paroxetine vs. paroxetine combined with alprazolam in the treatment of diabetes complicated with anxiety and depression. METHODS:Totally 86 patients with diabetes complicated with anxi-ety and depression were randomly divided into observation group and control group. The patients in observation group were given paroxetine 20 mg,qd,and alprazolam 0.4 mg,tid;patients in control group were given paroxetine alone. The treatment course lasted for 8 weeks in 2 groups. The clinical data was compared,including fasting plasma glucose(FPG),2 h postprandial glucose (2 h PG),glycated hemoglobin (HbA1c),cortisol,adrenocorticotropic hormone (ACTH) levels and scores of Hamilton anxiety scale (HAMA) and Hamilton depression scale (HAMD). The adverse reactions were observed. RESULTS:After treatment,FP-BG,2 h PG,HbA1c,cortisol,ACTH levels and scores of HAMA and HAMD in observation group were significantly lower than control group,with significant difference(P<0.05). There were significant differences in the incidence of adverse reactions be-tween 2 groups(P>0.05). CONCLUSIONS:Compared with paroxetine alone,paroxetine combined with alprazolam can improve more in blood glucose,endocrine levels and adverse mood symptoms in the treatment of diabetes complicated with anxiety and de-pression,with similar safety.

Objective To study the recent effect of ovary dislocation during the operation of cervical squa- mous carcinoma with stageⅠon ovary function.Methods 12 cases with cervical squamous carcinoma of stageⅠwere treated with surgery.During the operation bilateral ovaries with blood vessels were dislocated the abdominal cavity over the umbilical line through postperitoneum and fixed on the postperitoneum.12 cases were hysterec- tomized simply as the control.The change of ovary function was observed in one year after the operation.Results The levels of FSH and E_2 were decreased in the dislocating group(P

BACKGROUND:Long non-coding RNAs (lncRNAs) have became the hot topic in current studies and play an important role in the tumorigenesis. However, lncRNAs involved in the osteoblast differentiation remain poorly reported.
OBJECTIVE:To investigate the role of human LncRNAs in osteogenic differentiation of C3H10T1/2 cells induced by bone morphogenetic protein-2 and explore action mechanism.
METHODS:The induction of bone morphogenetic protein-2 was validated by alkaline phosphatase staining and the expression of corresponding genes was detected. The lncRNA expression profile was analyzed using the Arraystar lncRNA array in C3H10T1/2 MSCs undergoing early osteoblast differentiation. The expression with or without bone morphogenetic protein-2 induction was compared with high-flux sequencing, and the down-regulated genes were screened. The effect of lncRNA overexpression on osteogenic differentiation of C3H10T1/2 cells induced by bone morphogenetic protein-2 was observed.
RESULTS AND CONCLUSION:The bone morphogenetic protein-2 induced C3H10T1/2 cells led to increased alkaline phosphatase activity. After 72 hours of bone morphogenetic protein-2 induction, alkaline phosphatase, Id1,osteocalcin, Runx2, sp7 expression were increased (P<0.05). There were 24 down-regulated lncRNAs identified between bone morphogenetic protein-2 treated and untreated groups, the decrease of expression was 1.5 folds, and among them, only AK035085 contained intron. Compared with control group with no AK03508 expression, over-expression lncRNA AK035085 decreased the expression of alkaline phosphatase, Id1, osteocalcin, Runx2, sp7 (P<0.05). Experimental findings indicate that bone morphogenetic protein-2 induces osteogenic differentiation of C3H10T1/2 cells and AK035085 inhibits the osteogenic differentiation.

Objective To investigate the clinical value of serum homocysteine (Hcy),Cystatin C (CysC) detection in coronary heart disease prevention,diagnosis and treatment.Methods A total of 200 cases of coronary heart disease patients including 50 cases of acute myocardiac infarction (AMI) (AMI group),85 cases of unstable angina pectoris (UAP)(UAP group.) and 65 cases of stable angina pectoris (SAP) (SAP group) were selected,and 120 cases of healthy controls were selected as control group.The serum levels of Hcy and CysC were detected and compared.Results The serum levels of Hcy and CysC in AMI group,UAP group and SAP group were significandy higher than those in control group[Hcy:(22.35 ± 8.18),(16.54±7.56),(14.52±6.38) μmol/Lvs.(9.35±3.23) μmol/L; CysC:(1.32±0.27),(1.88± 0.66),(1.19 ± 0.46) mg/L vs.(0.80 ± 0.33) mg/L],and there were significant differences between two groups (P＜ 0.01).The serum level of Hcy in AMI group was higher than that in UAP group and SAP group [(22.35 ± 8.18) μ mol/L vs.(16.54 ± 7.56),(14.52 ± 6.38) μ mol/L],and there was significant difference (P ＜ 0.01).Conclusions The relationship between Hcy,CysC level and coronary heart disease is close,and Hcy levels increase with increasing degree of coronary heart disease.Detection of Hcy and CysC has some clinical value on prevention,diagnosis,treatment of coronary heart disease.

As an interdisciplinary of stomatology and space medicine, space oral medicine focuses mainly on oral diseases happened under space environment. With the manned space technology stepping into the new era, space oral medicine has been put under the spotlight. This article will review the historical events on this subject, summarize the newly progress especially on craniomaxillofacial bone, tooth-derived stem cell and oral microbiology researches and still put forward future prospect.
Aerospace Medicine ; Biomedical Research ; Humans ; Mouth Diseases ; Oral Medicine ; Stem Cells ; Weightlessness