OBJECTIVETo evaluate the effect of Gengnianchun Recipe (GNC) on learning memory function and its regulatory effect on hippocampal cholinergic system in ovariectomized rats.

METHODSFemale rats 10-12 months old were randomized into 5 groups, the sham-operation group, the model group treated with normal saline, the positive control group treated with Nilestriol, and the two GNC groups treated with high and low dose GNC respectively. A little fat around ovary was cut in the sham-operation group. The treatment lasted for 12 weeks after ovariectomy. Changes of learning memory function were tested by Morris water maze; serum level of estradiol (E2) was measured by chemical fluorescent method; hippocampal acetylcholinesterase (AChE) mRNA was determined with Real-time PCR; and the activities of acetylcholine (ACh), AChE and choline acetyltransferase (ChAT) in hippocampus were detected by immunohistochemistry respectively.

RESULTSTwelve weeks after ovariectomy, serum E2 and learning memory function markedly decreased in the ovariectomized rats (P < 0.01, P < 0.05). Nilestriol and high dose GNC showed an effect in improving the symptoms of learning memory functional deprivation and elevating the activities of hippocampal ACh, AChE and ChAT (all P < 0.05).

CONCLUSIONGNC can improve learning memory function of ovariectomized rats, and its mechanism might be realized by regulating the cholinergic system in hippocampus.

Acetylcholine ; metabolism ; Acetylcholinesterase ; genetics ; metabolism ; Animals ; Cholinergic Fibers ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; Female ; Hippocampus ; drug effects ; metabolism ; Immunohistochemistry ; Maze Learning ; drug effects ; Memory ; drug effects ; Ovariectomy ; RNA, Messenger ; genetics ; metabolism ; Rats ; Rats, Sprague-Dawley ; Reverse Transcriptase Polymerase Chain Reaction

Objectives To summarize the characteristics,differential diagnosis and management of incomplete 17 alpha-hydroxylase/17,20-1yase deficiency(17 OHD)of Chinese patients.Methods Six cases of incomplete 17 OHD from Peking Union Medical College Hospital were studied retrospectively through analyzing their clinical data,and the molecular pathogenic mechanism was discussed after literature review.Results Four cases of 46,XX incomplete 17 OHD were reported.The clinical characteristics included female phenotype,various degrees of breast development and absent or sparse axillary/pubic hair, oligomenorrhea or secondary amenorrhea,recurrent luteinized ovarian cysts,hypogonadism with persistent hyperprogesteronemia or high serum 17 alpha-hydroxyprogesterone level,with or without hypokalemic hypertension.There were also 2 cases of 46,XY incomplete 17 OHD,in which ambiguous genitalia were present besides hypokalemic hypertension.Conclusions Incomplete 17 OHD is a very rare form of congenital enzymatic deficiencies of steroid synthesis,which should be included in the differential diagnosis when there are menstrual disorders,sexual infantilism,recurrent ovarian cysts or ambiguous genitalia.Under such circumstances,hyperprogesteronemia offers a valuable clue for further investigation.

Background The tissue-engineered cornea is becoming the hot spot in the ophthalmologic field,while the research of corneal substitute is in the ascendant,because it is more similar to the corneal morpha and easy to survive in vivo.Objective This study was to investigate the biocompatibility of recombinant human type-Ⅲ collagen/poly9 ( 3-( methacryloylamino ) propyl dimethyl ( 3-sulfopropyl ) ammonium hydroxide ) ( PMPDSAH ) interpenetrating polymer network (IPN) (RHC-Ⅲ/PMPDSAH IPN) hydrogel as a tissue-engineered cornea in rabbit eye and its feasibility as the corneal substitute.Methods One hundred and eight rabbits were randomly divided into experimental group( 90 rabbits) and normal control group ( 3 rabbits),and 15 rabbits ( 30 eyes ) used as the donor corneas.RHC-Ⅲ/PMPDSAH IPN,NGF PMPDSAH IPN and corneal grafts were lamellarly transplanted into the right eyes in RHC-Ⅲ/PMPDSAH IPN group,NGF PMPDSAH IPN group and allograft group respectively.The corneal transparency and neovascularization were examined and scored under the slim lamp and compared among three groups using Kraskal-Wallis H test.The corneal epithelization time was observed and compared among these three groups using one way analysis of variance and LSD-t test.The histological examination of corneas was performed at the 3rd day,1st and 2nd week,1 st,3rd and 6th month after the surgery.The immunohistochemistry was used to detect the expression of K3 in cornea at the 6th month.Results The grafts were well attached in RHC-Ⅲ/PMPDSAH IPN group,NGF PMPDSAH IPN group and allograft group,and no rejection reaction was found throughout 6-month following up.Compared with normal control group,no significant differences were found in the scores of corneal opacification and neovescularization in these three groups (x2 =4.34,P =0.23 ;x2 =2.60,P =0.46 ) at the 6th month.NGF PMPDSAH IPN group achieved reepithelialization in (4.97±0.63) days and was obviously shorted than that in RHC-Ⅲ/PMPDSAH IPN group and allograft group ( t =11.97,P =0.00; t =5.80,P =0.00).The re-epithelialization time in RHC-Ⅲ/PMPDSAH IPN was (6.86±0.71) days,and that of allograft group was (5.87±0.43 ) days,showing a significant difference ( t =6.32,P =0.00).Hematoxylin-eosin staining results demonstrated that implanted materials integrated into the host corneal tissue well and support corneal epithelialization.Part of the material degraded at the 2nd week and degraded completely 1 month later.Regular alignment and distribution of collagen fibers were seen in the regenerated cornea and were similar to those of the normal stroma in 6 months.Immunohistochemistry showed the positive expression of keratin-3 in corneal epithelial cells.Conclusions RHC-Ⅲ/PMPDSAH IPN has a good biocompatibility without toxicity to corneal tissue.Furthermore,NGF can promote the corneal wound-healing and re-epithelialization.The material can be used as safe and reliable corneal substitute after improving the mechanical strength.

Objective To explore the effect of postasphyxial-serum in neonate on the expressions of Bcl-2-antagonist of cell death(BAD)and Bcl-2-associated X protein(BAX)in renal tubular cells(HK-2).Methods HK-2 cells were used as target cells.The experiment were divided into control group,asphyxia group and pyrrolodine dithiocarbamate(PDTC)blocking group.Control group:DMEM culture fluid was not contained asphyxia blood serum in every group;asphxia group:DMEM culture fluid contained 20 mL/L asphyxia blood serum in every group;PDTC blocking group:DMEM culture fluid contained 20 mL/L asphyxia blood serum and 40 ?mol/L PDTC in every group.The expressions of both BAD and BAX on cytoplast were detected by immunohistochemical method.Results Calculated Points according to HSCORE,compared with controls group[(1.97?0.26)and(1.77?0.11)],after stimulated with postasphyxial-serum,the expressions of both BAD and BAX of HK-2 cells of asphyxia group[(2.73?0.20)and(2.44?0.13)] and PDTC blocking group[(2.38?0.13)and(2.17?0.08)] significantly increased[F(BAD)=28.61,F(BAX)=15.51 Pa

The gene types of breast cancer can be classified into three types according to its molecules: Luminal type A, Luminal type B, HER-2-positive type, triple negative type. Authors combined pathological characteristics of breast cancer, biological characteristics, and comprehensive treatment, used syndrome typing based medication, and explored treatment meticulous ideas and methods of "treating the same disease with different methods" as well as "different treatment methods in accordance with patients individually".
Biomarkers, Tumor ; genetics ; Breast Neoplasms ; classification ; genetics ; therapy ; Female ; Humans ; Receptor, ErbB-2 ; genetics

ObjectiveTo explore the detection significance of insulin-like growth factor-I(IGF-I),IGF-binding protein-3(IGFBP-3) in children with acute lymphoblastic leukemia(ALL).MethodsSerum samples were obtained from 30 ALL children without any medication;serum control samples were obtained from 30 cases of healthy children.There were no significant differences of body weight,age and sex between 2 groups.All children had no case history of liver,kidney,malnutrition and endocrine system disease.IGF-Ⅰ was determined by radioimmunoassay kit.IGFBP-3 was determined by immunoradiometric kit.The data were analyzed with SPSS 11.0 software.ResultsThe level of IGF-Ⅰ in ALL group [(18.95?4.02)?106 g/L] was significantly lower than that in control group [(34.12?7.86)?106 g/L](t =9.412P

Objective　To compare the Immunoreactivity of various HEV Antigen with Anti-HEV IgM. Methods Solid-phase enzyme immunoassay( EIA ) was developed for detecting anti-HEV IgM by using synthetic peptides E30, E42, E33, and recombinant antigen from HEV ORF-2. Results Of 60 anti-HEV positive sera by using E30, E42, E33 and recombinant antigen as coating antigen, Anti-HEV IgM positive rates were 76.7%, 26.6%, 18.3% and 66.7% respectively. In Acute-phase and convalescence-phase sera of the patients with Hepatitis E, Anti-HEV IgM positive rate was 90% and 3.3% respectively. Conclusions The HEV E30-based EIA will be very useful in the early diagnosis of Hepatitis E.

Objective To determine the effects and dosage of N?acetylcysteine( NAC) in the im?provement of the visibility in esophagogastroduodenoscopy( EGD) . Methods A prospective randomized con?trolled study was performed on 193 patients scheduled for EGD from November 2014 to July 2015 were ran?domized into five groups using digital table. In group A, 100 mg dimethicone and 2 g NaHCO3 were given. In group B,100 mg dimethicone, 2 g NaHCO3 and 20 000 U pronase were given. Group C received 100 mg dimethicone, 2 g NaHCO3 and 200 mg NAC. Group D received 100 mg dimethicone, 2 g NaHCO3 and 400 mg NAC and group E 100 mg dimethicone, 2 g NaHCO3 and 600 mg NAC.The agents were dissolved in 100 ml water for each patient.Endoscopy was completed by one endoscopist and the score of image visibility assessment was completed by 2 other endoscopists. The 3 endoscopists were unaware of grouping. The total scores, the time of washing, the time of examination and complications were compared and analysed. The total image scores of group A, B, C,D and E were 30?83±3?78, 35?69±2?88, 33?16±3?90, 34?95±3?46 and 36?76±2?91, respectively. Group A was the lowest(P<0?05),followed by group C(P<0?05). There were no differences among group B,D, and E(P>0?05).Images that were scored 3 were the most in group E.The washing times of each group were 38?00±19?10, 17?03±11?44, 15?92±10?81, 15?78 ±10?24 and 15?55±9?69, and the examination times of each group were 13?49±2?49, 9?41±1?86, 9?08± 1?80, 8?73±1?91 and 8?78±1?79 minutes.Group A was the longest in these two indices(P<0?05). There were no significant differences among group B, C, D and E ( P<0?05) . There were no significant differences in adverse effects among groups after EGD( P>0?05) . Conclusion The preoperative NAC can improve the visibility in EGD. The best dose is 600 mg, whose effects and safety were similar to those of 20 000 U, but yield to less washing time and the examination time in EGD.

0.05).(3)The average CTDIvol values were 60?5 mGy,88?10 mGy for 2C_2 and NC_2(C_2)groups,respectively.The corresponding ED values were(12.3?1.0)and(18.0?2.0)mSv,respectively.The CTDIvol and ED values for 2C_2 group were about 32% lower than those of NC_2 group and were statistically significant with P

Objective To investigate the blood pressure status of preschool children in urban areas of Qingdao, and to determine the relationship between obesity and blood pressure in preschool children. Methods A stratified cluster sampling method was used to select a total of 13 kindergartens in urban districts of Qingdao. Height, weight, waist circumference, hip circumference and blood pressure of children in three classes were measured. Body mass index (BMI), waist to hip ratio and waist to height ratio were calculated and the relationship between obesity and blood pressure was analyzed. Results The mean values of systolic and diastolic blood pressure in preschool children in urban areas of Qingdao were (95.52±7.66) and (62.78±6.52) mmHg, respectively.The detection rate of hypertension in preschool children was 13.50%. The SBP and DBP were positively correlated with BMI, waist circumference, hip circumference and waist to height ratio. There was a linear regression relationship between body mass index and age and blood pressure. The risk of hypertension in overweight and obese children was 5.191 and 2.824 times of normal body weight, respectively. Conclusions The prevalence of hypertension in preschool children in Qingdao urban areas is high.Overweight and obesity are risk factors for elevated blood pressure.Therefore, while preventing preschool children from obesity, preschool children's blood pressure monitoring and blood pressure monitoring and early intervention of hypertension of preschool children should be implemented.