Human T-cell leukemia virus type 1 (HTLV-1) is a retrovirus demonstrated to be associated with human disease. Infection by the HTLV-1 can cause T-cell leukemia (ATL) in adults. HTLV-1 bZIP factor (HBZ) is a viral protein encoded by the minus strand of the HTLV-1 provirus. Among the regulatory and accessory genes of HTLV-1, HBZ is the only gene that remains intact and which is expressed consistently in all patients with ATL. Moreover, HBZ has a critical role in the leukemogenesis of ATL. Here, we review the function of HBZ in the oncogenesis of HTLV-1 and its molecular mechanism of action.
Animals ; Basic-Leucine Zipper Transcription Factors ; genetics ; metabolism ; Carcinogenesis ; HTLV-I Infections ; pathology ; virology ; Human T-lymphotropic virus 1 ; genetics ; metabolism ; Humans ; Leukemia, T-Cell ; pathology ; virology ; Retroviridae Proteins ; genetics ; metabolism

Objective To evaluate the efficacy of eszopiclone for patients with acute insomnia and the impact of premedication with eszopiclone on sleep structure of patients with acute insomnia.Methods In an open-label,self-control trial was conducted at Changzheng Hospital Sleep Centers,and patients (n =32) with acute insomnia (12 men,20 women; mean age,36.2 years) were administered eszopiclone 3 mg for three consecutive nights.Sleep was monitored via polysomnography.The insomnia severity index (ISI),and mini-mental state examination (MMSE) were used to assess the degree of insomnia and impact of drugs on cognitive function during the day.Results Eszopiclone can shorten sleep latency ( before treatment:(52.92 ± 11.71 ) min,after treatment:(28.2 ± 10.11 ) min; t =-4.376,P ＜0.01 ),prolong total sleep time(before treatment:(365.22 ±30.13) min,after treatment:(429.18 ±26.93 ) min; t =4.102,P ＜ 0.01 ),decrease wake up times( before treatment:( 5.00 ± 1.92 ) times,after treatment:( 2.73 ± 0.91 )times; t =- 4.592,P ＜ 0.01 ),improve sleep efficiency ( before treatment:72.69％ ± 6.32％,after treatment:82.67％ ± 4.16％ ; t =3.371,P ＜ 0.01 ),reduce awake time ( before treatment:( 88.51 ±17.48) min,after treatment:(65.93 ±21.l0)min; t =-4.592,P ＜0.01 ),decrease light sleep ( NREM1 period) the percentage of time ( before treatment:12.54％ ± 2.10％,after treatment:7.30％ ± 2.90％ ;t=-3.155,P ＜ 0.01 ),and increase the percentage of slow wave sleep (before treatment:8.03％ ±5.37％,after treatment:9.31％ ±5.29％; t =4.228,P ＜0.01).No effect was observed on the percentage of NERM2 period (t =0.731,P ＞0.05) and REM period (t =-0.813,P ＞0.05).Eszopiclone can improve the quality of subjective assessment of sleep ( ISI score decreased,t =- 2.551,P ＜ 0.05) and has no significant effect on cognitive function on first the morning after patients taking the medication.Conclusion Eszopiclone can positively regulate the sleep structure in patients with acute insomnia and improve subjective assessment of sleep quality.It is safe and has no significant effect on cognitive function.

Objective To study the imaging performance and mechanism of acute patellofemoral joint impingent syndrome.Meth-ods The MR images and clinical data of acute patellofemoral joint impingent syndrome were analysed retrospectively in 10 patients, which were confirmed by clinic .MRI and DR examination were performed in all patients,in which 6 patients had complete knee ar-throscopy material.The imaging performance and mechanism of acute patellofemoral joint impingent syndrome were summarized re-spectively.Results All cases had clear history of buckling ectropion trauma;Patellar dislocation or subluxation were detected in 9 cases on DR examination,10 cases on MRI;Patellar medial fracture or osteochondral fracture caused by acute slipped patella was de-tected in 1 case on DR examination,2 cases (3 places)on MRI;Medial patellar retinaculum injury were detected in 10 cases on MRI,which were corresponding to that on surgery.Articular injury and subchondral marrow edema in particular parts of joint (an-terolateral of lateral femoral and medial patellar)were detected in 9 cases on MRI.MRI features of articular cartilage injury were confirmed by arthroscopy.MRI showed ACL or PCL injury in 3 cases,meniscus tear in 4 cases,which were quite consistent with the arthroscopy findings.Conclusion MRI can effective display joint cartilage damage,subchondral marrow edema in particular parts of the joint,which is useful to clinical prediction and treatment at early stage.

Objective To investigate the application significance of 3.0T MR three dimensional double-echo steady state(3D-DESS) and three dimensional-true fast imaging with steady-state procession(3D-True FISP) sequences in diagnosis of wrist cartilage of rheumatoid arthritis (RA).Methods 26 patients who were clinically diagnosed with RA underwent wrist MR scans with 3D-DESS and 3D-True FISP sequences, while both sequences' scanning were achieved on 20 of them.340 articular-surface morphological conditions' were observed,which were divided into level 0, level 1 and level 2 damages according to morphological performance,and recorded on 3D-DESS and 3D-True FISP sequence respectively.The diagnostic differences in the number of lesions were compared for two sequences.Results The numbers were 79 and 50 for level 1 damage and 23 and 33 for level 2 damage on 3D-DESS and 3D-True FISP sequence respectively (P<0.05).The artifacts were showed in 14 patients on 3D-True FISP,and only two patients on 3D-DESS.Conclusion 3D-DESS sequence does better than 3D-True FISP in displaying RA wrist cartilage,which is able to provide certain help for treatment and prognosis evaluation of RA.

Objective To investigate the clinical efficacy and safety of testosterone supplement and Mreceptor blockers in the treatment of patients with lower urinary tract symptoms(LUTS)in late -onset hypogonadism(LOH). Methods 28 cases diagnosed as LOH with mild to moderate LUTS were collected.They were given testosterone supplementation (oral testosterone undecanoate capsules,80mg,2 times/d)and M receptor blocker (oral succinate solifenacin tablet,5mg,1 time /d)treatment for 1 -3 months.After treatment for 1 month and 3 months respectively, reviewd PSA,serum total testosterone (TT),international prostate of urinary storage symptoms score (urinary storage IPSS),quality of life (QOL)score,international index of erectile function (IIEF -5)score,maximum urinary flow rate (Qmax),residual urine (Ru)and rectal examination (DRE).The improvement of LUTS before and after treatment was evaluated.Results 1 month after treatment,1 patient was difficult to tolerate the solifenacin side effects and took testosterone supplementation alone.The rest 27 patients were able to take medicine for 3 months.After 1 month and 3 months treatment,the IPSS score had significant differences compared with before treatment[(10.3 ±2.1)points vs (14.2 ±3.3)points and (9.42 ±1.8)points vs (14.2 ±3.3)points,t =13.67,14.72,all P <0.05 ].After 3 months treatment,the QOL and IIEF -5 scores were (2.1 ±0.7)points vs (4.3 ±0.6)points and (16.8 ± 3.6)points vs (11.9 ±2.5)points,Qmax was (12.5 ±5.6)mL/s vs (9.8 ±4.8)mL/s(t =6.42,5.64,14.92,all P <0.05 ),the difference was statistically significant compared with before treatment.There were no significant changes in PSA and RU before and after treatment.All patients had no severe complications such as acute urinary retention.Conclusion Combination of testosterone and testosterone in the treatment of LUTS patients in LOH is safe and effective,and can significantly improve the LUTS and quality of life.

Objective To establish an animal model of rapid eye movement (REM) sleep deprivation (SD) and an animal model for perifornical nucleus microdialysis and investigate the change of cognition, hypocretinergic system and GABAergic system in rats' hypothalamus after various degrees of REM sleep deprivation and sleep revival and two GABAergic drugs intervention. Methods The modified multiple platform method (MMPM)was used to establish sleep deprivation model and the cognitive function was assessed by Morris' water maze. Immunofluorescence technique was used to analyze the number of Hypocretin (Hcrt) immunoreactive neurons, total Fos immunoreactive neurons, Hcrt and Fos colabeled neurons, and the integrated optical density ( IA ) of GABAA Rαl immunoreactive area in rats' hypothalamus.High performance liquid chromatograph (HPLC) was used to quantitatively analyze the level of GABA and Gluin in the rats' hypothalamus. Two GABAergic drugs, a selective GABAA R antagonist, SR-95531, and a selective blocker of type 1 GABA transporter (uptake blocker), NO-711, were used for perifornical nucleus microdialysis. Results There was no statistically significant difference in tests between CC and TC ( Define CC and TC). There was a significant decrease (P ＜ 0. 05 ) of cognitive function measured by Morris maze test in SD 3 d, SD 5 d and RS 6 h of SD groups compared with CC and TC groups. Number of Fos immunoreactive, F+ &H+ immunoreactive neuronsand IA of GABAA Rαl immunoreactive area were all significantly increased ( P ＜ 0. 05 ). Content of GABA measured by HPLC was also increased ( P ＜ 0. 05 ). However, all these changes were partly reversed by sleep revival SR-95531 and NO-711 had different effect on these changes. Conclusions Sleep deprivation, no matter mild or severe, has adverse effects on cognitive function. Activities of both GABAergic and Hcrtergic system are increased during REMSD. These two neurons system could be regulated by each other and the relationship between them is positive correlation. GABAergic system also had self-regulation during REMSD, but microdialysision of either SR-95531 or NO-711 acquired adverse effects on cognitive function of rats. So GABAergic system is not an optimal therapeutic target. Because GABAergic and Hcrtergic system has inhibitory effect on each other,suppressing activity of Hcrtergic system might be a promising therapeutic target.

Objective To study the effects of sleep inertia (SI) of different time course sleeps on sleep stages and cognitions in healthy men after 30 h sleep deprivation,and also to investigate the mechanism of cognitive functions impairment in sleep inertia stages and the influential factors of sleep inertia.Methods Ten healthy men (age,(20.8 ±2.1) years) participated in the program.The program was divided into 2 stages.First,participants attended a series of tests after 20 min nap(20 min nap group)after 30 h sleep deprivation.The testing series included 3 parts:the continuous performance task,the Stroop Tests,and the Addition Tests.The series of tests were done 3 times immediately after the volunteers were awoken and each lasted about 15 minutes with an interval of 10 minutes between each test.The polysomnogram (PSG) was recorded during the nap.The following 7 days was set as washing-out period to ensure a complete recovery.Participants repeated the similar processes with 2 h nap(2 h nap group) instead of 20 min nap.The cognitive performance of each group was compared with each other along with the best cognitive performance in awakening to estimate whether or not the cognitive abilities regained the normal condition.Results ( 1 ) Sleep latency became shortened in both groups after 30 h sleep deprivation.There were no slow wave sleep (SWS) and rapid eye movement sleep (REM) sleep stages in the 20 min naps,while the percentage of SWS was increased and percentage of REM declined in 2 h naps.(2)In the early of SI (5 min after awaking),cognitive tasks showed that the abilities of continuous attention,selected attention and addition ability were all impaired (continuous performance task:(371.8 ± 21.3 ) times/3 min vs (334.4 ± 22.4) times/3 min,( 373.2 ± 19.0) times/3 min vs ( 323.7 ± 23.8) times/3 min,t =10.443,7.774,both P＜0.01; Stroop tests:(20.3 ±1.5) points vs(17.3 ± 1.0) points,(21.5 ±0.8)points vs( 16.1 ± 1.4 ) points,t =8.478,4.934,both P ＜ 0.05 ; Addition Tests:( 222.2 ± 13.2 ) s vs ( 266.6 ±23.7 ) s,( 226.3 ± 10.9) s vs ( 267.6 ± 23.4 ) s,t =5.748,6.685,both P ＜ 0.01 ).The cognitive functions impairments of 2 h nap group were more severe at the initiation of sleep inertia,but regained the normal condition more quickly.Different cognitive tasks recovered at different speeds.The dispersion of SI needed 30 min.Conclusions ( 1 ) There are difference in the sleep construction and awaked sleep stage between 20 min nap and 2 h nap groups.(2) SI exerts negative influences on cognitive performances of continuous attention,selected attention and addition after sleep deprivation.Many factors may influence the dispersion of SI,including sleep debt,compensation of sleep debt and others.(3) Fragments of sleep are unfavorable to the recovery of body.

Objective To assess the results of emergency endovascular stent-grafting for patients with acute Stanford type B aortic dissection(type B AAD)within 24 hours of onset.Methods Between June 2007 and October 2008,30 patients with acute type B aortic dissection underwent emergency endOVascular stent-grafting within 24 hours of presentation.Under general anesthesia,stent-graft was deploved at the proper position of first tear entry through femoral artery under X-ray monitering.Follow-up by CT was performed 1 w,1 m ,3 m,6 m,1 y postoperatively to observe the efficacy and complications such as endoleak,migration and fracture of stent-graft. Result The technical success rate was 100%;13.4%(4 cases) endoleak rate was identified immediately after deployment.Follow up was made between 1 month to 19 months,averaging at(12±8)months,3.3%type-1 endoleak Was observed after 6 months;One patient died within 30 days possibly of dissection rupture;One patient died of acute liver failure during the follow-up. Conclusion Endovascular repair with stent-graft within 24 hours of presentation was effectivefor the treatment of acute type B aortic dissection.

Objective To analyze the differences in social psychological characteristics of patients with different subtypes of functional dyspepsia (FD).Methods From August 2011 to July 2015,210 FD patients met Rome Ⅲ criteria were enrolled and divided into pure postprandial distress syndrome (PDS)group (69 cases),pure epigastric pain syndrome (EPS) group (74 cases) and PDS overlap EPS (PDS+ EPS) group (67 cases).Hamilton depression scale (HAMD),Hamilton anxiety scale (HAMA),life event scale (LES) and Eysenck's personality questionnaire (EPQ) were used for evaluation.Chi-square test and least-significant difference were performed for statistical analysis.Results Incidence rates of depression and anxiety of PDS+EPS group were both 100.0％ (67/67),which were higher than those of pure PDS group (84.1％,58/69 and 91.3％,63/69),and the differences were statistically significant (x2 =11.62 and 16.34,both P＜0.01);which were also higher than those of pure EPS group (78.4％,58/74 and 90.5％,67/74),and the differences were statistically significant (x2 =6.10 and 6.67,both P＜0.05).Somatic anxiety score and mental anxiety score of PDS+ EPS group were 16.34±3.70 and 14.18±2.99,respectively;which were higher than those of pure PDS group (11.26±3.42 and 10.70±2.94) and pure EPS group (12.30 ± 4.29 and 10.36 ± 2.63),and the differences were statistically significant (t=8.33,5.97,6.85 and 8.06;all P＜0.01).The top two life events in three groups were sleeping habits alteration (67.6％,142/210) and severe disease or trauma (26.7％,56/210).The incidence rate of sleeping habits alteration in pure PDS group was 53.6 ％ (37/69),which was lower than that in pure EPSgroup (77.0％,57/74) and PDS+EPS group (71.6％,48/67),and the differences were statistically significant (x2 =8.68 and 4.71,both P＜0.05).Most of P scale scores of pure PDS group,pure EPS group and PDS+EPS group were normal,most of E and L scale scores were low;most of N scale scores of pure PDS group were low,and these of pure EPS group and PDS+EPS group were normal.Conclusions The incidence of depression and anxiety of PDS+EPS group is the highest.Somatic anxiety is more obvious than mental anxiety in PDS+EPS group and pure EPS group,most with sleep events.Slow emotional response is common in pure PDS group.

Objective To explore the effect of enhanced CT and enhanced MRI image fusion technique in making treatment decisions for primary liver cancer (PLC). Methods Clinical data of 55 patients with PLC who were treated in the Third Affiliated Hospital of Sun Yat-sen University between January 2013 and January 2015 were analyzed retrospectively. There were 42 males and 13 females, aged from 18-84 and with a median age of 52 years old. The informed consents of all patients were obtained and the local ethical committee approval was received. All the patients underwent enhanced CT and gadolinium ethoxybenzyl-diethylenetriaminepentaacetic acid (Gd-EOB-DTPA) enhanced MRI. CT and MRI images were fused by using flexible registration method based on finite element. Treatment decisions for these patients were discussed and made by HCC multidisciplinary consultation group. Discussion was conducted twice for each patient. The first discussion was based on enhanced CT images and the second was based on fused images. Changes of treatment decisions were observed and analyzed. Results Treatment decisions based on enhanced CT images included radical treatment in 8 cases, palliative surgical treatment in 35 cases and systemic medicine treatment in 12 cases. Treatment decisions based on fused images included radical treatment in 4 cases, palliative surgical treatment in 36 cases and systemic medicine treatment in 15 cases. Compared with those based on enhanced CT images, the conversion rate of radical treatment, palliative surgical treatment and systemic medicine treatment based on fused images was respectively 50%(4/8), 3%(1/35) and 25%(3/12). Conclusions Enhanced CT and Gd-EOB-DTPA enhanced MRI image fusion can change the treatment decisions for some patients with HCC, and it is of certain significance in optimizing the treatment protocols.