Objective To analysis the varying degrees of the M protein staining after immunofixation electrophoresis(IFE)and study its applications in clinical diagnosis.Methods 196 cases of clinical serum samples were tested by using IFE,we analyzed the positive electrophoretic bands of M protein and performed statistical analysis by using SPSS17.0.The M proteins were analyzed ret-rospectively.Results 103 patients were diagnosed with monoclonal gammopathy in 196 patients with positive M protein bands,in-cluding 96 cases of multiple myeloma(MM)and 7 cases of other monoclonal gammopathy;93 patients were non-monoclonal gam-mopathy.By analyzing the M band staining in different clinical groups,we found that M bands were mainly with dense and thick staining in monoclonal immunoglobulin group,the dense staining rate of MM was 90.6%,and the difference between MM and the other monoclonal gammopathy was not significant(P >0.05).In contrast,M bands were in light and narrow staining in non-mono-clonal immunoglobulin group,the rate of which was 25.8%,the difference between non-monoclonal immunoglobulin group and monoclonal immunoglobulin group was statistically significant(P <0.01).The proportion of allelic band in MM,other monoclonal gammopathy,non-monoclonal gammopathy were 39.6%,28.6% and 2.2% respectively,the differences were statistically significant (P <0.01).Conclusion The M band,accompanied by allelic band in IFE staining,is helpful in the diagnosis of monoclonal gam-mopathy,especially MM.The appearance of M protein provides early warning of monoclonal gammopathy.

OBJECTIVE:To observe the influence of capecitabine combined with radiotherapy on postoperative survival rate, relapse rate and survival quality of elderly patients with rectal cancer at Ⅱ-Ⅲ stage. METHODS:110 patients with rectal cancer atⅡ-Ⅲ stage were selected and randomly divided into control group and observation group with 55 cases in each group. Both group received radical resection of rectal carcinoma. Control group was given three dimensional conformal radiation therapy(3DCRT)af-ter operation;observation group was additionally given capecitabine 1 500 mg/m2,d1-14,qd,on the basis of control group. A treatment course lasted for 21 d,and both groups received 2 courses of treatment and followed up for 3 years. The survival rate and metastasis and recurrence rate of 2 groups were compared as well as KPS score before and after treatment. Toxic reaction of 2 groups was also observed. RESULTS:The follow-up total survival rate and disease-free survival rate of observation group were 89.09%and 76.36%,which were significantly higher than 74.55%and 54.55%of control group;the distant metastasis rate and lo-cal recurrence rate were 12.73% and 5.45%,which were significantly lower than 30.91% and 21.82%,with statistical significance (P<0.05). KPS score of 2 groups were increased significantly,between 2 groups before and after treatment ,with statistical signifi-cance(P<0.05);Comparison between groups(P>0.05). There was no statistical significance in the incidence of nausea and vom-iting,diarrhea and urinary tract reaction between 2 groups (P>0.05);but the incidence of bone marrow arrest in observation group was significantly higher than control group(P<0.05). CONCLUSIONS:Capecitabine combined with 3DCRT can effectively improve postoperative distant survival rate of patients with rectal cancer at Ⅱ-Ⅲ stage,and reduce the metastasis and recurrence risk;do not lower life quality and induce serious adverse reactions.

Objective To discuss and validate which method is more effectiveness for central placenta previa through analysing the clinical outcomes of the management of hemorrhage between uterine packing and stitching hemo-stasis during cesarean section.Methods 48 pregnant women with central placenta previa was conducted in this ret-rospective study,which were all cesarean section delivery.These patients were divided into two groups.24 patients with uterine packing with gauze in the control of massive hemorrhage during cesarean section were indetified,other-wise,the other 24 patients were conducted with sewing and ligation uterine.And then,the effectiveness and outcomes were compared.Results These all patients were alive and keep the uterus.The average estimated blood loss of the stiching group was (554 ±327)mL,obviously less than the uterine packing group,which was (828 ±584)mL,and the difference was statisatically significant (t =6.689,P<0.01 ).The rate of blood transfusion during operation was 8.33% (2/24)in the group of stiching,and was 50.0%(12/24)in the uterine packing group(P<0.05).Similar-ly,the operation time of the stiching hemostasis group,which was (48.9 ±10.0)min,was evidently shorter than (68.3 ±13.3)min of the other group(t=8.126,P<0.01).The two groups had no significant difference in therate of primary healing of incision,postoperative fever and admission time(P>0.05).Conclusion The uterine stiching is an effective,rapid and simple technique in the control of hemorrhage of central placenta previa.

Objective To investigate the high risk factors of chlamydia (CT) infection in female.Methods Enzyme linked immunosorbent assay was used to detect 120 cases of gynecological clinic,including 60 cases asymptomatic patients before abortion and 60 cases patients with symptoms of mild genital itching,vaginal secretions slight increased.CT antigen in uterine cervix were detected,and the relationship between its symptoms,age,birth time,contraception,cervical condition,the number of sexual partners,mycoplasma and CT infection were analyzed.Results Among 120 cases,there were 28 cases of CT positive,positive rate was 23.3％ (28/120).CT infection rate of symptomatic and asymptomatic patients was 16.7％,30.0％ respectively,the difference was not significant(P＞0.05).The CT infection rate of patients' age younger than 30 years was 27.8％,higher than older than 30 years (10.0％),the difference was significant(x2=3.975,P＞0.05).The CT infection rate of patients had multiple sexual partners in nearly lyear was 62.5％,higher than that had one sexual partner(9.0％),the difference was significant(x2=37.42,P＞0.05).The CT infection rate of patients didn't use contraceptive tools was 29.1％,higher than that used contraceptive tools(12.2％),the difference was significant(x2=4.319,P＜0.05).Conclusion The symptoms of CT infection are no specificity,should be targeted at screening for patients have high-risk factors,such as age less than 30 years old,have multiple sexual partners nearly 1 year and don' t use contraceptive tools.

? amyloid protein(A?) including A?40 and A?42 are the important bioactive substances in vivo.Their toxic and beneficial attributes in the body depend on its concentration.The brain A? level is maintained by two balances under the physiological condition.The first balance is the generation involved in ?-secretase and ?-secretase and the degradation involved in neprilysin(NEP) and insulin-degrading enzyme(IDE) of A?. The second one is the balance between the receptor for advanced end glycation products(RAGE)-mediated influx and low-density lipoprotein receptor related protein 1(LRP1)-mediated efflux of A? across the blood-brain barrier(BBB).Breakdowning any one of the two balances would result in the aggregation and precipitation of A? in the brain,which is a crucial event in the pathogenesis of Alzheimer's disease(AD).This paper reviews the regulation of brain A? level under the physiological condition and the reducing strategies on the level of brain A? under the pathological condition for developing new drugs in the treatment of AD.

Humans ; Hyperthyroidism ; Infant, Newborn

OBJECTIVETo establish social stress induced depression-like model in mice of C57BL/6 strain, and to assess its reliability using differenf behavioral methods.

METHODSTotally 20 male mice of C57BL/6 strain were divided into the normal group and the stress model group by random digit table,10 in each group. Another 10 CD1 mice were subjected to social stress. Mice in the normal control group received no stress, while those in the model group received social stress for 10 successive days. Behavioral assessment was performed using social interaction test (SIT), the elevated plus-maze (EPM) test, tail suspension test (TST), respectively. Serum cortisol level was detected by ELISA to assess the reliability of the model.

RESULTSIn the social interaction test when the social target (CDI mice) was inexistent, mice in the normal control group spent longer time in the social interaction zone and less time in the corner zone (P < 0.05); mice in the model group spent less time in the social interaction zone and more time in the corner zone (P < 0.05). Compared with the normal group when CDI mice existed, mice in the model group spent less time in the social interaction zone and more time in the corner zone (P < 0.05). Compared with the normal control group, the total times for entry into open arms, close arms, and the maze were obviously reduced (P < 0.05), and the proportion of entering open arms was significantly reduced (P < 0.05) in the model group. In TST, the motionless time within the last 4 mm was prolonged in the model group (P < 0.05). The serum cortisol level in the model group was obviously elevated (P < 0.01).

CONCLUSIONSocial stress induced depression-like animal model in mice of C57BL/6 straineasquite reliable and possibly suitable to be used in integrative medicine research of combination of disease and syndrome model.

Animals ; Behavior, Animal ; Depression ; physiopathology ; Disease Models, Animal ; Hydrocortisone ; blood ; Male ; Mice ; Mice, Inbred C57BL ; Social Behavior ; Stress, Psychological

OBJECTIVETo explore the clinical effects of minor bone anchors and palmaris longus tendon graft in treating chronic mallet fingers deformity.

METHODSFrom January 2008 to June 2013, 26 patients with chronic mallet fingers deformity were treated with minor bone anchors and palmaris longus tendon graft. There were 18 males and 8 females, aged from 18 to 52 years old with an average of (32.0±1.3) years. Among them, 8 cases caused by machine injury, 6 cases by fall injury, 6 cases by sprain from fight, 4 cases by tendon spontaneous rupture, 2 cases by knife trauma. There was no tendon attachment of extensor tendon check in 16 cases, and with 0.3 to 0.5 cm tendon attachment in 10 cases. All patients had the flexion deformity and the disability of dorsiflexion activity. During operation, the distal interphalangeal joint was fixed in 10° to 20° dorsiflexion by a Kirshner wire, the minor bone anchor was used to reconstruct the extensor tendon insertion, the palmaris longus tendon slice was transplanted the decayed area of extensor tendon insertion. Four weeks postoperatively, the Kirshner wire was removed and the plaster external fixation was used, and the patient began function exercises. Postoperative complications were observed and fingers functions were assessed according to Dargan standard.

RESULTSThe patients were followed up from 6 to 14 months with an average of (5.0±0.3) months. Wound superficial infection occurred in 2 cases, the skin pressure ulcer in 2 cases, joint activities disability in 1 case; these symptoms got improvement after symptomatic treatment. Traumatic arthritis occurred in 2 cases, 1 case was improved after treatment, and 1 case had chronic pain for a long time. No internal fixation loosening or breakage and tendon rupture were found. According to Dargan standard to evaluate the finger function, 17 cases got excellent results, 8 good, and 1 poor.

CONCLUSIONIt is an effective way to treat the chronic mallet finger deformity using minor bone anchors and palmaris longus tendon graft, and the method has advantages of reliable fixation, easy operation, satisfactory effect and less complication.

Adolescent ; Adult ; Female ; Finger Injuries ; surgery ; Fracture Fixation, Internal ; Hand Deformities, Acquired ; surgery ; Humans ; Male ; Middle Aged ; Suture Anchors ; Tendon Transfer

Objective To investigate the mechanism of the radiosensitivity effect of Cox-2 gene in esophageal cancer.Methods Cox-2 specific siRNA was constructed and transfected to EC9706 cells to downregulate intracellular Cox-2 expression.The expressions of MMP-2,Bcl-2 mRNA,AKT and phosphorylated AKT proteins were assayed after radiation.Colony formation,cell proliferation,apoptosis and cell invasion in vitro were examined as well.One-way ANOVA method was used to analyze the data.Results Affter 2 and 4 Gy irradiation,a significant increase in the mRNA expression of Bcl-2 was observed in the Cox-2 up-regulation group (F =3.36,4.32,P ＜ 0.05).In the group of Cox-2 downregulation,the expression of MMP-2 mRNA was significantly reduced(F =3.86,8.09,P ＜ 0.05).Affter irradiation,a significant decreaseof Bcl-2 mRNA (F =3.73,5.64,P ＜ 0.05) as well as an increase of Bax(F =7.03,7.42,P ＜ 0.05) was detected,and the levels of total and phosphorylated AKT proteins had the highest level in the Cox-2 upregulation group and had the lowest level in the Cox-2 downregulation group.In the Cox-2 downregulation group,the apoptosis induction obviously increased with dose (F =317.40,P ＜ 0.05),and the proportion of cells in Go-G1 phase gradually increased but the proportion of cells in S and G2-M phases decreased,concomitant with the obvious suppression of cell proliferation,in addition,cell invasion was decreased.Conclusions Downregulation of intracellular Cox-2 mRNA expression,concomitant with subsequent downregulation of MMP-2 and Bcl-2 and upregulation of Bax,resulted in reduction of the invasion and metastatic capabilities of tumor cells,and induction of Go-G1 phase arrest and apoptosis.Downregulation of AKT and phosphorylated AKT (pAKT) protein expression might also interfere with the capability of the PI3K/Akt signal transduction pathway to resist radiotherapy.

Objective To explore the prognosis of children under different modes of delivery in the oli?gohydramnios patients,in order to reduce unnecessary cesarean section rate. Methods One hundred and forty?eight cases of oligohydramnios from September 2013 to October 2015 in the First Affiliated Hospital of Tsinghua University were reviewed,including 74 cases of vaginal delivery,54 cases of vaginal delivery group,20 cases for fetal heart abnormalities in the induction of labor or labor in the process or abortion failure emergency caesarean birth operation( pilot transfer of emergency cesarean section delivery group);direct line selective cesarean section in 74 cases. The delivery surround unripe ending of three kinds of delivery mode was compared,and gestational weeks,estate, cervical score, maximal amniotic fluid dark area vertical depth ( AFV), amniotic fluid index ( AFI) ,fetal size,water treatment and abortion case of the vaginal delivery and emergency caesarean birth were statistically compared. Results Both fetal heart abnormality and amniotic fluid of third degree incidence of trial production of emergency cesarean section group was 80. 00%( 16/20) ,of vaginal delivery group was respectively 11. 11%( 6/54) ,29. 63 ( 16/54) ,and of selective cesarean section delivery group was 0 and 9. 50%( 7/74) re?spectively,the difference between the 3 groups was statistically significant( P<0. 05) . The gestational age of vagi?nal trial production successfully delivery group and transfer of emergency cesarean section production group was respectively (39. 33+0. 13),(40. 20+0. 2) weeks, the parity was 0 were 45 cases,20 cases respectively,the parity was 1 were 9 cases,0 case respectively;AFV was ( 2. 14+0. 06) cm,( 1. 86+0. 08) cm respectively;the water treatment rates were 66. 67%( 36/74) and 30%( 6/20) respectively;the difference between the two groups was statistically significant(P<0. 05). Induction:in vaginal delivery group,there were 24 cases of spontaneous labor without induction,12 cases treated with misoprostol for cervical mature after vaginal delivery,12 cases of contraction oxytocin induction of labor with vaginal delivery,6 cases of misoprostol for cervical ripening after va?ginal delivery;in emergency cesarean section group,there were 2 cases of natural labor,8 cases of oxytocin,miso?prostol after oxytocin in 10 cases. There was significant difference between the two groups ( P<0. 001 ) . Conclusion Low risk pregnancy, fetal reserve ability of oligohydramnios in vaginal delivery is feasible. Water treatment,gestational age < 40 weeks, the parity more than 1 times,AFV>2 cm,the high rate of abortion sensi?tive pregnant women with high rate of vaginal delivery.