1.Relationship between serum level of thyroid hormones and plasma level of N-terminal Pro-brain natriuretic peptide in elderly patients with type 2 diabetes
Yuan RUAN ; Tianfeng WU ; Fang YUAN
Chinese Journal of Geriatrics 2015;34(2):150-154
Objective To investigate the relationship between thyroid function indexes and plasma level of N-terminal pro-brain natriuretic peptide (NT-proBNP) among patients who had high risks for cardiovascular diseases without thyroid diseases and heart failure.Methods Totally 166 elderly type 2 diabetic patients aged 80 years and over with normal range of thyroid stimulating hormone (TSH) were divided into group of euthyroid sick syndrome (ESS,n=62) and group of normal thyroid hormones (NESS,n=104).The patients in normal thyroid hormones group were divided into three subgroups according to the levels of total triiodothyronine (TT3),(low-level group,n=26; middle-level group,n=50; high-level group,n=28).Levels of thyroid hormones,NT-proBNP,cholesterol,low-density lipoprotein cholesterol,fibrinogen,HbA1C,glomerular filtration rate (eGRF),left ventricular ejection fraction (LVEF) and the incidences of concomitant diseases were measured and detected.lgNT-proBNP was used to calculated after NT-proBNP was changed by Log transformation.Results Compared with NESS group,ESS group showed that age was increased,systolic pressure and LVEF were decreased [(86.3 ± 5.8) years vs.(85.6 ± 5.2) years,(126.6±15.5) mmHg vs.(135.6±17.8) mmHg,(63.9±7.6)% vs.(67.4±7.5)%,all P<0.01].Compared with NESS group,ESS group showed that the levels of serum total T3 and free T3 were decreased [(0.89±0.17) nmol/L vs.(1.45±0.31) nmol/L,(3.31±0.55) pmol/L vs.(3.96± 0.59) pmol/L,both P<0.01].The lgNT-proBNP level was higher and serum total thyroxine (TT4) level was lower in ESS group than in NESS group [(2.40±0.40) ng/L vs.(2.26±0.44) ng/L,(101.80±36.11) nmol/L vs.(111.07±23.29) nmol/L,both P<0.05].Pearson analysis revealed that serum levels of TT3,TT4 and FT3 were negatively correlated with lgNT-proBNP (r=-0.217,-0.180,-0.174,respectively,all P<0.05) after adjustment for age,systolic pressure and LVEF.Stepwise regressive analysis showed TT3 was the risk factors for lgNT-proBNP (β=-0.267,P< 0.01).Compared with the low-level group,the lgNT-proBNP were significantly reduced in the middle-,and high-level groups [(2.19±0.42) ng/L,(2.19±0.46) ng/L vs.(2.44±0.39) ng/L,both P<0.05].Conclusions TT3 has a close correlation with NT-proBNP in elderly type 2 diabetic patients with normal TSH.It has a significant meaning to test TT3 level for monitoring heart function in clinical medicine.
2.POTENTIATING EFFECTS OF ROYAL JELLY ON IMMUNO LOGICAL FUNCTION IN MICE
Zhibin LIN ; Yibin ZHANG ; Yuan RUAN
Chinese Pharmacological Bulletin 1987;0(01):-
Royal jelly (2.5g/kg/d igX8d) increased the clearance rate of iv charcoal particles in normal mice, and completely antagonized the decrease of clearance rate caused by cortisone acetate. It also potentiated the delayed type hypersensitivity ( DTH ) reaction of footpad induced by SRBC in normal mice, and entirely antagonized the inhibition of DTH reaction caused by eye lophosphamide. Royal jelly (2.5 g/kg/d ig X 7 d ) had no marked influence on hemolysin formation in normal mice and immunosuppressed mice caused by eye lophosphamide.
3.Clinical study of plasma exchange in the treatment of refractory idiopathic thrombocytopenic purpur with 2∶2∶1 exchange liquid.
Linhai RUAN ; Zhongqiao YUAN ; Yi XIE
Clinical Medicine of China 2001;0(06):-
Objective To study the effect of the plasma exchange in the treatment of RITP with 2∶2∶1 exchange liquid.Methods 32 cases of RITP were treated with plasma exchange using CS 3000 blood cell separator.Results Plasma exchange could reduce the levels of harmful substances like PA Ig,PA C 3,CIC and raise the levels of platelet by 3 times.Conclusion Plasma exchange is effective in the treatment of RITP with 2∶2∶1 exchange liquid,with reliable outcome.
4.Renal cell tumor and renal cyst(Report 64 cases)
Jie FAN ; Shujie XIA ; Yuan RUAN
China Oncology 2001;0(03):-
Purpose:To clarify the association between renal cysts and renal cell carcinoma (RCC), we analyzed the clinical characteristics of patients with renal cell carcinoma and renal cyst. Methods:From May 1996 to January 2004, a total of 198 patients were hospitalized for renal cell carcinoma in our department, and 64 patients had both renal cysts and renal cell carcinoma (RCC). The clinical characteristics of the 64 patients were evaluated, and compared to 106 renal cell carcinoma (RCC)patients without renal cysts from the 198 patients in the same period. Results:Renal cysts were identified by preoperative ultrasonography, computerized tomography and magnetic resonance imaging in 37%(22/59)、24%(15/61) and 35%(6/17) respectively. Histopathological examination revealed renal cyst in 15 patients (23%). The sizes of renal cyst were 0.5 to 12 cm. The pathological examinations showed clear cell carcinoma in 61, chromophilic cell carcinoma in 2 and a combined type of clear cell carcinoma and chromophilic cell carcinoma in 1. Compared to RCC patients with those without renal cyst,younger and male RCC patients were easier to also have with renal cyst(P
5.Effects of SKP2 on the bystander effect induced by irradiated esophageal cancer cells
Zhubo ZHANG ; Yuan LI ; Hezheng ZHAI ; Shuzhou RUAN ; Xiaochun WANG
Chinese Journal of Radiological Medicine and Protection 2014;34(10):739-742
Objective To investigate the effect of SKP2 expression on radiation induced bystander effect (RIBE) of esophageal cancer cells.Methods The esophageal cancer cell lines with different SKP2 levels were applied for the study and the SKP2 expression was identified by Western blot.Micronuclei (MN) assay and DNA foci assay were used to evaluate the effect of SKP2 on RIBE.The cells were transfected with SKP2 gene or SKP2 siRNA to further verify the effect of SKP2 on RIBE.Results MN assay showed that the bystander effect induced by the cells with a high level of SKP2 was lower than that induced by the cells with a lower level of SKP2 (t =8.06,P < 0.01).These results were further confirmed by the gene transfection experiments.When the expression of SKP2 was increased,RIBE was decreased (t=11.12,10.16,P < 0.01).Contrarily,when the expression of SKP2 was reduced,RIBE was increased (t =8.39,8.83,P < 0.01).γ-H2AX foci formation assay disclosed that when SKP2 expression in the irradiated cells increased,the repair ability of DNA damage in the bystander cells was higher than the control (t =6.85,7.10,P < 0.01).With the expression of SKP2 decreased,the repair ability of DNA damage was lower than the control (t =7.66,8.47,P < 0.01).Conclusions Over-expression of SKP2 inhibits RIBE of esophageal cancer cells,at least partly through regulating DNA damage repair ability.
6.Effect of vanillin via olfactory pathway on repetitive stereotyped behavior in autistic rats
Yuan RUAN ; Xiaoping GAO ; Guangwu LI ; Tingting SANG
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(9):787-790
Objective To investigate the effect of vanillin via olfactory pathway on repetitive stereotyped behavior in autistic rats and its possible mechanism.Methods The model of autism was established by the single intraperitoneal injection of 600 mg/kg sodium valproate on day 12.5 of pregnant rats.Twenty-four autism animals were adopted according to the eye opening time,body mass and behavioral test.They were randomly divided into control group and vanillin group with 12 in each group,while the saline group rats as normal control group and the blank group rats as normal blank group.The repetitive stereotyped behavioral were examined in four groups of rats and the concentration of 5-HT in the amygdala was determined by immunohistochemical stainning.Results Compared with the control group,the repetitive stereotyped behaviors of vanillin group decreased (stereotype time (113.31 ± 18.45) s vs (250.52± 13.25) s,P<0.01) and the expression of 5-HT in amygdala increased (5-HT positive neuron number(3.42± 1.32) vs (1.32± 1.04),P<0.05).Conclusions Vanillin via olfactory pathway can improve repetitive stereotyped behaviors of autism rats,which is associated with increased the expression of 5-HT in amygdala.
7.Research progress in multi-modality imaging system based on fluorescence molecular tomography
Yuan ZHOU ; Fei LIU ; Qiuqi RUAN ; Jing BAI
International Journal of Biomedical Engineering 2014;37(1):43-48
Multi-modality imaging system based on fluorescence molecular tomography (FMT) has been widely used in animal studies.It combines FMT with other imaging modalities,which realizes the imaging of anatomical structure,physiological function and biological activities on molecular or cellular levels of small animal in vivo at the same time.This review gives an introduction to the history and current research status of singlemodality FMT system,introduces the developments of multi-modality system based on FMT,especially the system setup,working principle,performance and application of FMT/CT,FMT/MRI and FMT/radionuclide imaging.The prospects of multi-modality imaging system based on FMT are discussed.
8.Analysis of mental status assessment of patiens with dento-maxillofacial deformities
Weijun YUAN ; Lili JIANG ; Bixia WANG ; Dedong YU ; Hong RUAN
Chinese Journal of Practical Nursing 2014;30(8):64-66
Objective To study the mental status of dento-maxillofacial deformities patients for orthognathic-orthodontic treatment,assess the testing results,and provide reference for doctors and nurses to evaluate mental features of patients.Methods 79 patients from a three-level and first-class hospital in Shanghai were collected from February 2011 to January 2012,who were to undergo orthognathic-orthodontic treatment.All the subjects filled in MMPI questionnaire before the operation.Results Scores of F and Pa subscales in male were significantly lower than the national norm.Scores of K and Mf subscales in female were significantly higher than the national norm.Scores of L,F,Hs,D,Pd,Pa,Pt,Sc,Si subscales were significantly lower than the national norm.Scores of F,Pa,Sc,Ma subscales in male were significantly higher than female.Scores of Mf subscales in female were significantly higher than male.Conclusions The whole personality of dento-maxillofacial deformities patients are normal.However,individualized personality deviation and psychological problems exist,including personality characteristics among different genders.
9.EFFECT OF TRANSPLANTATION OF THE NEURAL STEM CELLS MODIFIED WITH GENE OF NGF OR GDNF ON THE CHOLINERGIC NEURONS OF RASAL FOREBRAIN OF AD MODEL RAT
Yiwen RUAN ; Qunfang YUAN ; Chuanen WANG ; Zhibin YAO
Acta Anatomica Sinica 1954;0(02):-
Objective To investigate the effect of a single or combined transplantation of the neural stem cells(NSCs) modified with gene of NGF or GDNF on the cholinergic neurons of basal forebrain of AD model rat. Methods The NSCs modified with gene of NGF or GDNF were implanted in single or combined into the lateral cerebral ventricle of the rats after fibria\|fornix transection.The rats were killed three weeks after transplantation and the brain sections concluding basal forebrain were cut coronally on a freezing microtome and were processed by immunohistochemistry staining with antibodies against ChAT.The numbers of ChAT positive neurons of medial septum(MS) and vertical diagonal band(VDB) were analyzied statistically with one way of Student\|Newman Kaels. Results In MS,the percentages of ChAT positive neurons at the lesion side to the intact side in NGF group was 81% which was significantly higher than that in the lesion group(34%),NSC group(36%) and GDNF group(50%), P 0\^05). Conclusion\ The injury cholinergic neurons can be protected in different extent after a single or combined transplantation of the neural stem cells modified with gene of NGF or GDNF.Among these three groups,greater protection was found in NGF group and NGF+GDNF group,and lesser protection in GDNF group.\;[
10.Analysis on the risk factors of second fracture in fracture related to osteoporosis
Wendong RUAN ; Pei WANG ; Yuan XUE ; Xinlong MA ; Xianhu ZHOU
Chinese Journal of Orthopaedics 2011;31(7):789-793
Objective To explore the clinical characteristics and risk factors of re-fracture in patients suffering from osteoporosis-related fractures as well as effective interventions.Methods From January 2006 to January 2008,a total of 273 patients with osteoporosis-related fracture were entered in the study,including out-patients and in-patients who were over 50 years old.The patients were divided into fracture group(n=225)and re-fracture group(n=48).The re-fracture rate was followed up for 2 years,during which 11 patients developed re-fracture.General data including age and sex,fracture types,femoral neck bone mineral density(BMD)T-scores tested by dual-energy X-rays absorptiometry(DEXA),Charlson index,timeinterval between two fractures as well as mobility skill assessment were collected and analyzed.Results The average age at the first fracture was 67.7±8.5 years vs.72.7±9.5 years for the re-fracture cases.Female accounted for 70.2% of the fracture group and 77.1% of the re-fracture group.The most common re-fracture type was vertebral fracture for the first time and femoral neck fracture for the second time during the followup.Risk factors for a second fracture in osteoporotic fractures patients include age(>75 years,HR=1.23; >85years,HR=1.68),female sex(HR=1.36),prior vertebral fractures(HR=1.62),prior hip fractures(HR=1.27),BMD T-score<-3.5(HR=1.38)and weakened motor skills(HR=1.27).The refracture rate in osteoporosis-related fractures was 4.9% followed up for 2 years.The second fracture happened 3.7 years after the first one on average.Conclusion The risks of second fracture among patients with initial brittle fracture are substantial.Mobility skill assessment is an important risk factor for osteoporosis fractures recurrence.There is adequate time between fracture and re-fracture for effective interventions to prevent or reduce the risks of refracture,especially for the old women with a vertebral or hip fracture.Medication,motor function rehabilitation and fall-down prevention training would be helpful.