Chelating Agents ; therapeutic use ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Hepatolenticular Degeneration ; drug therapy ; Humans ; Integrative Medicine ; methods ; Phytotherapy ; Succimer ; therapeutic use ; Treatment Outcome

Gray Platelet Syndrome ; Humans

Objective The aim of this study was to investigate the radiation dose caused by 18 F-fluorodeoxyglucose (FDG) in PET/CT examination and to optimize the concerned radiation protection. Methods Thirty patients from our conventional PET/CT examination were simple randomly selected, and they all underwent whole body PET/CT imaging. The radioactive dose of injected 18F-FDG was recorded. The internal radiation dose was calculated and the external radiation dose from patients was measured with the 451P-DE-SI ion chamber survey meter. The staff's dose was recorded with thermoluminescent detector (TLD). All dosimetry data were processed and analyzed statistically with Excel 2003. Results The injected radioactive dose of 18F-FDG was (432.9±51.8) MBq, and effective dose equivalent received per patient was (8.23±0.99) roSy. The correlation coefficient (r) of the dose equivalent rate and distance was-0.994 by power function curve fitting, and that of dose equivalent rate and time was - 0.988 by exponential curve fitting. The staff's dose was lower than the annual dose limit. Conclusions The patient's internal radiation dose caused by 18F-FDG in PET/CT examination is low, nonetheless, the clinician should always consider optimizing and minimizing the necessary radiation received by the patients. The patients having been injected with 18F-FDG should stay in one place to decrease their radiation to the public. From the medical point of view in optimizing radiation exposure, there may still be a potential to lower the injected 18F-FDG activity.

Objective To explore the value of transrectal elastography and contrast-enhanced ultrasound in evaluation of the efficacy of neoadjuvant therapy for rectal cancer.Methods Forty patients with final diagnosis of advanced(T≥3) rectal cancer were respectively examined with transrectal ultrasound (TRUS),endorectal elastography and contrast-enhanced ultrasound(CEUS) before and after neoadjuvant therapy(NET).The tumor size,strain ratio and quantitative parameters of contrast-enhanced ultrasound including arrival time(AT),time-to-peak (TTP),peak intensity(PI) and area under the curve(AUC) were recorded and compared before and after NET.In addition,the TRUS stages and postoperative pathological diagnosis were compared after NET.Results ①There were significant decreases in tumor size and strain ratio after the therapy compared with pre-therapy in all these patients(t =-6.13,P ＜0.001;t =-24.92,P ＜ 0.001).②PI and AUC were lower after NET than those of pre-therapy and the differences were significant(t =-9.66,P =0.001;t =-13.58,P ＜0.001).However,the changes of AT and TTP were no statistical significances (t =-1.17,P =0.307;t =-1.26,P =0.275).③The accuracys of preoperative TRUS for T stage and N stage of tumor evaluated according to pathology were respectively 75.0 ％ (30/40,Kappa =0.593,P =0.000) and 72.5 ％ (29/40,Kappa =0.396,P =0.009).Conclusions Transrectal elastography and contrast-enhanced ultrasound can reflect the pathological changes and perfusion characteristics of lesions in a certain extent and have high value in clinical therapy.

This study was aimed to establish a method for assay of 4-terpineol, α-terpineol, bornyl acetate and methyl-n-nonylketone in Houttuynia cordata with gas chromatography-mass spectrometry (GS/MS) for the first time in order to provide experimental evidences for its quality control. Undecylen was analyzed quantitatively. GC/MS method was used in the content determination of 4 kinds of components in Houttuynia cordata. GC conditions were that the temperature was firstly increased to 70oC for 5 min, and then 5oC·min-1 to 140oC for 5 min. Then, the temperature was increased by 10oC·min-1 to 250oC for 10 min. The temperature of the injection port was 230oC. The carrier gas was high purity helium. The flow rate was 1.0 mL·min-1. The split ratio was 10:1. The sample quantity was 1 μl. MS conditions were that the detector was MS, EI was 70ev, the temperature of four poles was 150oC, the temperature of ion source was 230oC. The results showed that there was good linearity of four components, which were 4-terpineol, α-terpineol, bornyl acetate and methyl-n-nonylketone obtained within the ranges of 6.492~129.84μg·min-1, 1.097~21.944 μg·min-1, 12.128~242.56 μg·min-1, and 84.76~169.52 μg·min-1, respectively. The average recoveries of the four components were 81.2%, 80.6%, 88.3%, and 84.6%, respectively. The RSDs were 1.5%, 2.3%, 1.1%, and 0.7%, respectively. It was concluded that the method was simple, sensitive, and easy to operate. The simultaneous measurement of multiple indexes on the component for quality evaluation of Houttuynia cordata can effectively reflect the quality of Houttuynia cordata. It can also be used in the quality assessment of fresh Houttuynia c ordate .

Objective The purpose of this study was to provide efficient evidence to the treatment and nursing for patients with colorectal cancer after colostomy surgery by conducting a quality of life survey on the patients. Methods The WHOQOL-BREF scale was distributed to 103 patients after colostomy surgery in the Tumor Hospital of Yunnan Province. Results The average score of these patients was 23.45±9.92,with the highest score of 29, the lowest score of 13. In terms of quality of life in the physiological field and psychological field, there was a significant difference between the high self-efficacy ability and low self-efficacy ability ( <0.05) .In terms of quality of life in the social field and environment field, there was no significant difference between the high self-efficacy ability and low self-efficacy ability (>0.05). Conclusion The patients’familiarity with stomas was closely related to the quality of life, which indicated that the quality of life could be improved by improving the patient's familiarity with stoma care.It is necessary to know the condition of colostomy care in different postoperative stages and provide efficient support and help for the patients.

OBJECTIVETo observe the influence of Gandou Tablet I (GD I) on neurologic electrophysiology in patients of hepatolenticular degeneration (HLD).

METHODSVigilance-controlled electroencephalogram (VEEG), electromyogram (EMG) and brain-stem auditory evoked potential (BAEP) in 32 cases of HLD were examined before GD I treatment, and reexamined after 4 weeks of treatment in those with abnormal neurologic electrophysiology.

RESULTSAt the same time of clinical symptom improvement after treatment, the abnormal VEEG, EMG and BAEP also improved with the effective rate of 71.43%, 70% and 66.67% respectively, their constitutional ratio were different insignificantly, P > 0.05. The peak latency (PL) of III, V waves and interpeak latency (IPL) of I-III, III-V and I-V waves in patients before treatment were all greatly prolonged, compared with those in the healthy control group (P < 0.05 or 0.01), the IPL of III-V and I-V waves were markedly improved after treatment.

CONCLUSIONNeurologic electrophysiologic examination was valuable for complementary diagnosis and therapeutic effect evaluation of HLD. GD I could improve the abnormal neurologic electrophysiologic parameters.

Adolescent ; Adult ; Child ; Drugs, Chinese Herbal ; therapeutic use ; Electroencephalography ; drug effects ; Electromyography ; drug effects ; Electrophysiology ; Evoked Potentials, Auditory, Brain Stem ; drug effects ; Hepatolenticular Degeneration ; drug therapy ; physiopathology ; Humans ; Male ; Phytotherapy ; Tablets

OBJECTIVETo observe the effect of salidroside on tic behavior and in vivo dopamine DA) and serotonin (5-HT) levels in Tourette syndrome (TS) model rats.

METHODSForty rats were randomly divided into the blank control group, the TS model group, the haloperidol-treated group (0.5 mg/kg x d(-1)), and the salidroside-treated group (50 mg/kg x d(-1)), 10 in each group. TS rat model was induced by imino-dipropio-nitrile (IDPN). Peritoneal injection of haloperidol and salidroside was started from the 4th day of modeling in the haloperidol-treated group and the salidroside-treated group respectively. Normal saline was peritoneally injected to rats in the blank control group and the TS model group respectively. Stereotyped behavior was scored, and changes of DA and 5-HT levels in blood and striatum were measured before modeling, after modeling, and after intervention.

RESULTSCompared with the blank control group, the score of the tic behavior was elevated (P < 0.01) , levels of DA and 5-HT in plasma and striatum were reduced in the model group (P < 0.01, P < 0.05). Compared with the same group after modeling, the tic behavior score decreased and plasma DA levels increased in the two treated groups after intervention (P < 0.01). 5-HT content increased in the salidroside-treated group (P < 0.01). Compared with the model group after intervention, the tic behavior score was significantly reduced (P < 0.01), and DA levels in plasma and striatum were elevated (P < 0.01, P < 0.05) in the salidroside-treated group and the haloperidol-treated group. Compared with the haloperidol-treated group, the tic behavior score increased (P < 0.01), DA levels in plasma and striatum were lowered (P < 0.01, P < 0.05), the 5-HT level increased in plasma and striatum (P < 0.01, P < 0.05) in the salidroside-treated group.

CONCLUSIONSIn the salidroside-treated group, the tic behavior was significantly reduced, and DA levels in plasma and striatum were elevated. Its mechanism might be related to regulating activities of dopamine neurons in striatum.

Animals ; Corpus Striatum ; Dopamine ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Glucosides ; pharmacology ; therapeutic use ; Haloperidol ; Phenols ; pharmacology ; therapeutic use ; Rats ; Serotonin ; Stereotyped Behavior ; Tics ; drug therapy ; Tourette Syndrome ; drug therapy

Background and purpose:Bispecific antibody is a special pattern of genetic engineering antibody.It possesses 2 antigen binding sites, one directed at the effecter cells and the other at the target cells which are always the tumor cells.This enables the effecter cells to recruit to the targets efficiently and exert cytotoxic effect.The experiment was aimed to construct the expression vector of anti-CD3?anti-CD19 bispecific antibody, purification and analyzing the activity of the diabody.Methods:Applyed PCR and overlap PCR to construct the expression vector of anti-CD3?anti-CD19 bispecific antibodies, transformed it into E.coli 16C9 for expression.Purified the diabody by His-tag affinity chromatography and confirmed by 12% SDS-PAGE and Western blot.Antigen binding activity of the diabody was analyzed by FACS.Results:The DNA sequence of the expression vector containing anti-CD3?anti-CD19 fragment was comfirmed.The yield of purified diabody was up to 5 mg/L.The molecular weight of diabody was correctly indicated by SDS-PAGE and Western blot.The diabody could specifically bind to CD19+ Raji cells and CD3+ Jurkat cells while competitively inhibit binding of HIT3a and HIT19a to the cells.Conclusion:Successfully constructed the expression vector of anti-CD3?anti-CD19 bispecific antibodies, the diabody acquired by the method could be produced with high level expression and also had high specific affinity with CD19+ Raji cells and CD3+ Jurkat cells.

Objective To evaluate intraoperative tracing of sentinel lymph nodes ( SLNs) by fluorescence imaging combined with carbon nanoparticles .Methods 112 breast cancer patients eligible for sentinel lymph node biopsy were randomly assigned to the combination group (56 cases)receiving indocyanine green (ICG)and carbon nanoparticles as the lymphatic mapping tracers and ICG alone group (56 cases).Intraoperative frozen sec-tion was performed , followed by conventional histopathology .Results In the combination group , subcutaneous lymphatic vessels were successfully visualized in 53 patients and the detection rate was 94.6%(53/56).The flu-orescence SLNs were successfully detected in 54 patients and the detection rate was 96.4%(54/56)in ICG alone group.In the combination group , SLNs were successfully identified in 54 patients by fluorescence and 52 patients by black dyed, and the SLNs detection rate was 100%(56/56).While in the ICG alone group, the SLNs were found in 52 patients and the detection rate was 92.9%(52/56)(χ2 =2.3, P>0.050).The average number of detected SLNs was 3.7 ±1.5 ( 205/56 ) in combination group vs 2.5 ±1.4 ( 130/52 ) in ICG alone group ( t =-3.5, P=0.001).17 metastatic SLNs were found in 10 patients in the combination group vs 12 metastatic SLNs in 9 patients in ICG alone group .Conclusion Combination of ICG and carbon nanoparticles for mapping sentinel lymph nodes in breast cancer patients can increase the number of SLNs detected and the detection rate , reducing the rate of misdiagnosis and false negative rate .