In recent years, the incidence rate of breast cancer has increased year by year, and gradually tends to be younger. Neoadjuvant chemotherapy (NACT) has become the standard treatment for locally advanced breast cancer (LABC). Therefore, it is of great clinical significance to evaluate the efficacy of neoadjuvant chemotherapy in early and effective manner. Multimodal ultrasound plays an important role in evaluating the response of neoadjuvant chemotherapy. This article will review the recent research progress of three-dimensional multimodal ultrasound in the evaluation of neoadjuvant chemotherapy for breast cancer .

Objective: To survey the knowledge, attitude and behavior about HIV/AIDS among men who have sex with men (MSM) in the main districts of Chongqing and to analyze the current status and demand on HIV/AIDS control in the districts. Methods: Questionnaire survey was conducted among MSM, and qualitative interviews of MSM and some key informants, including the centers for disease control and prevention (CDC) staff, volunteers and the owners of bars or public bathrooms were done. Results: About 80% of MSM were younger than 30 years old and were unmarried. More than half of MSM had college degree or above. Most of them were students, office staff and entertainment staff, and about 25% of them were bisexual. Television and newspapers were the main pathways to obtain knowledge on HIV/AIDS; friends, free publicity materials, internet and consulting services were also ways to obtain related knowledge. It was found that in the recent six months, 6.5%(50/772) of MSM sold and 3.9%(30/772) bought sexual services, and about 17.1% (132/772) MSM had sex with women in the recent six months. The rates of condom use among MSM when having sex with men and women at every intercourse were 41.9%(271/647) and 29.5%(39/132), respectively. And 82.0%(633/772) of them had intervention service. MSM suggested that their privacy should be fully protected during the intervention, more attractive publicity materials should be provided, and more knowledge was needed on other sex transmitted diseases; the intervention ways should be diversified; and they needed the consultation of professional. The volunteers required more training and independent offices. The owners of entertainment argued that more efforts should be made to encourage the entertainment workers to promote intervention. Conclusion: MSM in the main district of Chongqing have many high risk factors of HIV/AIDS. Though various interventions have been given and some achievement has been made, more efforts are needed to protect the privacy of MSM population and to improve the intervention. And efforts should also be made to promote the initiation of the volunteers, entertainment owners and staff.

Objective To evaluate the clinical features of central nervous system involvement in brucellosis,and to provide references for clinical treatment and diagnosis.Methods A retrospective review was carried out in 14 hospitalized patients who were diagnosed as neurobrucellosis from October 2008 to September 2011 at the First Hospital of Jilin University.Patients' clinical manifestation,pathogen characteristics,cerebrospinal fluid analysis and imaging data were recorded.Results Among the 14 cases of patients with neurobrucellosis,10 cases had the clinical manifestations of headache and vomiting,11 cases meningeal irritation,2 cases dysphoria and seizures,3 cases apathia,3 cases coma,3 cases positive pathological sign,and 2 cases lower extremities weakness.From the perspective of clinical diagnosis of 14 patients with neurobrucellosis,4 cases were meningitis,of which,meningitis with both lower extremities paralysis were 2 cases; encephalitis in 2 cases; meningoencephalitis in 6 cases; abducent paralysis,decreased vision,myelitis and ataxic gait in 1 case,respectively.All patients were in acute phase and had irregular fever.After combination therapy with antibiotics for 2 to 9 days,body temperature of all patients returned to normal,and they were discharged from the hospital after 1 to 2 weeks.All cases were followed up for 12 months,finding no sequelae.Conclusions Due to the diversity of central nervous system involvement in brucellosis,in case of a patient with long-term fever and neurological symptoms,medical and epidemiological history should be inquired and diagnosis would be made easy based on combination of cerebrospinal fluid with laboratory tests.Early treatment of acute neurological brucellosis has showed a good prognosis.

Practicing and learning platform was preliminary established by teachers to explore the feasibility and availability of ‘ interest-oriented research team’ in promoting professional competence among public health students.Public health students interested in interest-oriented research were recruited.Through this platform,students can learn professional knowledge and conduct practice earlier and complete their study facing the society,community and public.After four years' practice and exploration,students indeed improved the abilities of researching and practicing,therefore,the training model of ‘interest-oriented research team’ needs promoting.

Objectives To study health-related quality of life(HRQOL) of children with subclinical epileptiform electroencephalographic discharges.Methods Subjects were 30 children with subclinical epileptiform electroencephalographic discharges,50 children with clinical seizures,28 children without clinical seizures and 30 controls.Guardians completed a valid epilepsy-specific HRQOL questionnaire for children,the quality of life in children epilepsy questionnaire(QOLCE).Results Children with subclinical epileptiform electroencephalographic discharges have 8 subscales scores lower than control group,2 subscales scores higher than group with clinical seizures.Conclusions Quality of life of children with subclinical epileptiform electroencephalographic discharges is better than that of children with clinical seizures.However cognitive,behavior,daily life and social activity are impaired by subclinical epileptiform electroencephalographic discharges and lowered the HRQOL of children.

[ ABSTRACT] AIM:To observe the effects of long-term cigarette smoke exposure on pulmonary vascular remode-ling and the protein expression of transforming growth factor-β1 ( TGF-β1 ) in the rats, and to explore the mechanism. METHODS:SD rats (n=36) were randomly divided into control group, 2-week smoke exposure (S-2W) group and 12-week smoke exposure (S-12W) groups.HE staining andα-smooth muscle actin staining were performed to observe the pul-monary vascular remodeling.The protein expression of proliferating cell nuclear antigen ( PCNA) and TGF-β1 in the pulmo-nary arteries was determined by the method of immunohistochemistry.The mRNA expression of TGF-β1 in the pulmonary arteries was evaluated by RT-qPCR.RESULTS:Compared with control group, ratio of pulmonary vessel wall thickness to vessel diameter ( WT%) and percentage of muscularized vessels were significantly increased in S-2W group and S-12W group ( P<0.01) .Significant increases in the protein expression of PCNA and TGF-β1 in smoke exposure groups were ob-served compared with control group.There was significant difference between 2 model groups (P<0.01).Compared with control group, the mRNA expression of TGF-β1 in pulmonary artery walls obviously increased in smoke exposure groups. There was significantly difference between S-2W and S-12W groups (P<0.05).The mRNA expression of TGF-β1 was positively correlated with pulmonary vascular muscularization, WT% and the protein expression of PCNA.CONCLU-SION:Long-term cigarette smoke exposure results in pulmonary artery remodeling in rats.The possible mechanism is that cigarette smoking exposure induces the over-expression of TGF-β1 at mRNA level in pulmonary vessels and promotes the proliferation of pulmonary vascular smooth muscle cells in rats.

Objective To systematically evaluate the clinical efficacy of bariatric surgery for elderly (age ≥ 60 years) or nonelderly (age ＜60 years) obese patients.Methods Literatures were researched using PubMed,Embase,Cochrane Library from January 2006 to June 2016 with the key words including bariatric surgery,metabolic surgery,gastric bypass,gastric band,sleeve gastrectomy,biliopancreatic diversion,elderly,aged,over 60 years.The cohort study about clinical efficacy of bariatric surgery for elderly or nonelderly obese patients were received and enrolled,and surgical procedures were unrestricted.Patients with age ≥ 60 years and with age ＜60 years were respectively allocated into the elderly group and nonelderly group.Two reviewers independently screened literatures,extracted data and assessed the risk of bias.Count data were described as odds ratio (OR) and 95％ confidence interval (CI).The heterogeneity of the studies was analyzed using the I2 test.Results Eleven retrospective studies were enrolled in the Meta analysis,and the total sample size was 9 913 patients,including 792 in the elderly group and 9121 in the nonelderly group.The results of Meta analysis showed that there were no statistically significant differences in the early mortality,incidence of postoperative early complication,remission rates of postoperative diabetes,postoperative hypertension,dyslipidemia and obstructive sleep apnea syndrome between elderly group and nonelderly group (OR =3.31,1.94,1.00,0.61,0.99,1.40,95 ％ CI:0.86-12.77,1.01-3.74,0.66-1.50,0.34-1.10,0.42-2.29,0.72-2.72,P＞0.05).Conclusion The safety and clinical efficacy of bariatric surgery in the elderly obese patients are equivalent to that of nonelderly patients.

Objective To evaluate the effectiveness of an activity of nutrition science experience on nutrition and food safety cog-nition among primary and secondary school students .Methods With stratified cluster sampling ,students of grade 5 and 6 in one primary school and students of grade 1 and 2 in one middle school in Chongqing were selected ,and randomly divided into interven-tion group(n= 501) and control group(n= 522) .Only conducted the activity in the intervention group .Baseline data of all the students were investigated before the intervention .Effect evaluation was performed instantly in the intervention group and control group ,and a follow-up survey carried out in the intervention group after 9 months(n= 472) .Results The nutrition knowledge scores of instant intervention group were 9 .03 ± 2 .75 and 14 .70 ± 3 .28 before and after intervention respectively (U=29 .78 ,P<0 .01);the knowledge scores of the nine months later intervention group were 12 .35 ± 2 .89 ,which were lower than instant interven-tion group(U=12 .40 ,P<0 .01) ,but higher than before intervention(U=18 .04 ,P<0 .01) .The food safety scores of instant inter-vention group ,which were higher than control group ,nine months later intervention group and before intervention(P<0 .01) .Con-clusion It is feasible and effective to conduct a nutrition science experience among primary and secondary school students .

Objective To evaluate application feasibility of Array CGH in genetic diagnosis of clinical complex chromosomal abnormalities.Methods Two patients of genetic counseling and two patients of prenatal diagnosis were selected from Xiamen Maternity & Child Health Care Hospital during the period of December 2010 to December 2011.Under aseptic conditions 2-4 ml peripheral blood was collected in EDTA and 2-3 ml Cord Blood was collected through cordocentesis after genetic counseling and preoperative examination.G-banded chromosome analysis and genome DNA extraction were carried out on the four cases.The whole genome of four cases were scanned and analyzed by Array CGH.The results of Array CGH were confirmed by FISH.Results Array CGH detected different kinds of duplications and deletions in several chromosomes.Most of these duplications and deletions were not detected by karyotype analysis.The results of Array CGH showed duplication of 4p16.3-4p15.31,deletion of 4p16.3 in the first case,duplication of Xp11.22-Xq11.1 in the second case,duplication of 4p16.3-4p15.32,deletion of 2q37.3 in the third case and duplication of 2q21.2-2q32.1,deletion of 2q14.3-2q21.1 in the fourth case.These duplications and deletions were confirmed by FISH.Conclusions Compared with conventional cytogenetic analysis,Array CGH can not only accurately detect micro deletion and micro duplication with high resolution and sensitivity but also identify breakpoints precisely.Array CGH can provide the basis for clinical genetic diagnosis.

Objective To study the clinical effect of continuous central venous pressure monitoring and select a better method for central venous pressure momtoring. Methods Continuous central venous pressure wag monitored by connecting pressure sensor to central venous catheter in 56 patients with open heart operation.At the same time routine monitoring method was used in the same central venous vein of the saine patient The CVP values from the two methods were compared for 100 times and analyzed the difference.Results The VCP values of the two groups had no statistical difference(P＞0.05).Conclusions Continuous monitoring by pressure sensor had advantages such as continuous data,dynamic,direct-viewing,Veracious and decreased chance of infection.It could reduce the workload of nurses and possessed more clinical value compared with routine monitoring method.