Preliminary study on the relationship between histogram analysis of DCEGMRI quantitative parameters and clinical stage of nasopharyngeal carcinoma / 实用放射学杂志

Objective To investigate the relationship between histogram analysis of DCE-MRI quantitative parameters and clinical stage of nasopharyngeal carcinoma (NPC).Methods 70 patients with NPC confirmed by pathology underwent MRI examination and staging.NPC tumors were measured by full-volume ROI setting method,and the obtained DCE-MRI quantitative parameters were analyzed by histogram.Spearman correlation coefficients were obtained to evaluate the potential correlation between the DCE-MRI histogram quantitative parameters and NPC clinical stages.Results The histogram-based Ktrans (mean,10 th,75 th,90 th),Kep (mean,10 th,kurtosis),and Ve (mean,90 th,skewness)had correlation with T stage (P＜0.05,respectively).The histogram-based Ktrans (mean)and Ve (mean,90 th) showed correlation with N stage (P＜0.05,respectively).The histogram-based Kep (kurtosis)and Ve (mean)had correlation with M stage (P＜0.05,respectively).The histogram-based Kep had no correlation with N stage,and Ktrans had no correlation with M stage. The histogram-based Ktrans (mean,10 th,75 th,90 th),Kep (10 th,75 th,kurtosis)and Ve (mean,75 th,90 th)had correlation with overall stage (P＜0.05,respectively).Conclusion The histogram analysis of DCE-MRI quantitative parameters showed that the multiple parameters associated with NPC overall stages.DCE-MRI quantitative parameters non-invasively reflect the aggressiveness and progression of NPC.The histogram analysis of DCE-MRI quantitative parameters may play a role in clinical stage of NPC.

The status of thyroid volume of children aged 8-10 years and influencing factors in Hefei City / 中华地方病学杂志

Objective To investigate the status and the influencing factors of thyroid volume of children aged 8-10 years in Hefei City.Methods In 2016,according to the requirements of "National Iodine Deficiency Disorders Surveillance Plan (the 2016 Edition)",the method of multistage stratified sampling was used in 9 counties (cities,districts) of Hefei.Five primary schools were randomly selected from each county (city,district),with one in each direction (the east,west,south,north and center),then 40 children aged 8-10 years (male ∶ female =1 ∶ 1,with similar age distribution) were randomly chosen in each primary school.The thyroid volume,height and weight were measured.In addition,a questionnaire with the items including personality,learning pressure,dietary habits,related disease history and contact history was designed and used to collect the data of the subjects.Results Totally 1 800 children aged 8-10 years were selected from 45 primary schools in 9 counties (cities,districts).The mean thyroid volume was (3.009 ± 1.197) ml.Totally 71 people were found with thyroid enlargement and the goiter rate was 3.9％,which was in the range described in the elimination iodine deficiency disorders (IDD) standard (＜ 5％).Univariate analysis showed that for children in different age groups,seafood consumption frequency,radiological examination,height,and body mass,the thyroid volumes were significantly different (P＜ 0.05);Multivariate linear regression showed that body weight and height were main factors affecting the thyroid volume of children aged 8-10 years in Hefei City,the standard partial regression coefficient are 0.288 and 0.140,respectively.Conclusions The thyroid volume of the 8-10 years old children is generally in the normal range in Hefei.Goiter rate is lower than the standard for elimination of iodine deficiency The findings have showed that not only age,but also height,body mass and other factors should be considered while evaluating the influencing factors of the thyroid volume of school-aged children.

Relationship between ABCG2 expression and chemotherapeutic efficacy and drug resistance of anthracyclines after breast cancer surgery / 中国生化药物杂志

Objective To investigate the relationship between adenosine triphosphate-binding cassette superfamily G member 2 (ABCG2) mRNA and protein expressions and chemotherapeutic efficacy and drug resistance in breast cancer patients. Methods 24 patients with breast cancer were selected as study subjects, all patients were treated with anthracycline chemotherapy after chemotherapy, according to WHO criteria, the patients were divided into effective group, stable group and advanced group according to chemotherapy effect. The levels of ABCG2 mRNA and protein in the breast tissue were detected by qPCR and ELISA before and after chemotherapy. Results After chemotherapy, the total effective rate was 41.67%, 58.33% of patients still developed drug resistance. The expressions of ABCG2 mRNA and protein in patients after chemotherapy were significantly higher than those before chemotherapy (P<0.05). The expressions of ABCG2 mRNA and protein were significantly lower in the effective group than in the stable group and advanced group (P<0.05). The expressions of ABCG2 mRNA and protein in the stable group was significantly lower than that in the advanced group (P<0.05). Conclusion The expression level of ABCG2 was correlated with the chemotherapeutic efficacy and drug resistance of breast cancer patients. The higher the ABCG2 expression level, the stronger the ability of promoting the excretion of drugs, the more significant the drug resistance of tumor cells and the worsen the chemotherapy effect.

The short term therapeutic effects of radioactive 125I seeds implantation for treatment of non-small-cell lung cancer / 中华内科杂志

Objective To explore influential factors of local therapeutic effect in CT guided brachytherapy of 125I seeds for non-small-cell lung carcinoma (NSCLC).Methods Totally 141 primary NSCLC patients diagnosed by bronchoscope or puncture biopsy were treated with CT guided 125I seeds implantation treatment from 2003 January to 2005 January.Among them,26 patients were treated with seeds implantation only and remaining 115 combined with chemical therapy.Preplans were performed by using treatment planning system before the implantation.We took the implantation with the prescription dose of 80-110 Gy,1 seed per 1 cm3,under the guide of computed tomography.Six months after implantation treatment,CT graphs were taken to evaluate the therapeutic effect.Results All the patients were survival until 6 months after implantation,and 37 were complete remission,93 were partial remissions.The effective rate was 92.2％.Among all the observed factors,pathologic type (F =5.162,P =0.023),dose of cover 100％ tumor(D100) (F =100.713,P =0.000) and treatment methods (F =16.205,P =0.000) were the independent influent factors (P ＜ 0.05).Among these,D100 was the most important factor (P =0.000).Single factor analysis indicated that pathologic type (x2 =7.313,P =0.007),D100 (x2 =71.6,P =0.000)and treatment methods (x2 =20.5,P =0.000) were significant influent factors.Of all 141 cases,24 had complications during or after implantation treatment,while no severe complications were reported.There was no significant correlation between complication and local therapeutic effect (P ＞ 0.05).Conclusion CT guided implantation of 125I seeds for lung cancer has good clinical effects and few complications.D100 is the most important factor to influence the local therapeutic effect.Implantation treatment combined with chemotherapy is an ideal measure for NSCLC treatment.

The relationship between the stress-related psychosocial factors and the psychosomatic adjustment after surgery(II)：The effect of Qi-Gong relaxation training / 中华行为医学与脑科学杂志

Objective To study the effect of Qi-Gong relaxation training on the operation-related psychological stress and the post-operative psychosomatic adjustment in upper-abdominal surgery patients. Methods Forty-two patients undergoing upper-abdominal surgery in intervention group were instructed to do Qi-Gong relaxation training, and forty patients matched were controls without Qi-Gong relaxation training. On the day before surgery, a self-developed patients' pre-operative appraisal questionnaire, a self-developed patients' pre-operative behavior rating questionnaire for completion by medical workers, and State Anxiety Inventory (SAI) of State -Trait Anxiety Inventory (STAI) were used in two groups. In an hour before operation，the shift of the mean value of pulse and systolic pressure of every case compared with the base line measured at his (or her) admission was also recorded. After surgery, patients were assessed with a self-developed patients' post-operative appraisal questionnaire, a self-developed patients' post-operative behavior rating questionnaire for completion by medical workers and SAI of STAI. Besides, the indexes of physical rehabilitation, including intestinal aerofluxus, total dosage of analgesia and so on, were recorded. Data were analysed in t-test with SPSS. Results Compared with controls, the patients in intervention group had more positive anticipation about the following operation, lower pre- and post-operative anxiety, and lighter post-operative pain experience. There was no difference in the indexes of physical rehabilitation between two groups. Conclusions Qi-Gong relaxation training could lead patients to better psychological adjustment both before and after operation. This finding suggests that Qi-Gong relaxation training could be used as an effective psycho-behavior intervention in abdominal surgery patients.

Studies on the actions of Xiefei Dingchuan injection(泻肺定喘注射液) on Ca2＋Mg2＋ATPase and Na＋K＋ATPase of red blood cell membrane in rats with pulmonary hypertension induced by monocrotaline / 中国中西医结合急救杂志

To investigate the mechanism of Xiefei Dingchuan injection (XFDCI,泻肺定喘注射液) in treating pulmonary hypertension by means of measuring the activity of Ca2＋Mg2＋ ATPase and Na＋K＋ATPase of red blood cell(RBC) membrane.Methods:The pulmonary hypertension models induced by monocrotaline in 18 rats were established then treated with XFDCI.Using cardiac catheter and chromatometry respectively the pulmonary artery pressure (PAP) and the activities of Ca2＋Mg2＋ATPase and Na＋K＋ATPase of RBC membrane were measured.Results:The activities of Ca2＋Mg2＋ATPase and Na＋K＋ATPase of RBC membrane in XFDCI group were obviously higher than those in pulmonary hypertension group.Conclusions:XFDCI is able to reduce the pulmonary hypertension and its mechanisms may be related to increasing the activities of Ca2＋Mg2＋ATPase and Na＋K＋ATPase of RBC membrane.