Hydrogen Peroxide ; analysis ; Sensitivity and Specificity ; Spectrophotometry ; methods ; Titanium ; Workplace

Air ; analysis ; Chromatography ; methods ; Ions ; analysis ; Metals, Alkali ; analysis ; Workplace

Equipment Failure ; Female ; Heart Ventricles ; pathology ; surgery ; Humans ; Middle Aged ; Pacemaker, Artificial

Objective To compare the dosimetric difference between volumetric are modulation with RapidArc and fixed field dynamic IMRT for breast cancer radiotherapy after breast-conserving surgery.Methods Twenty patients with early left-sided breast cancer received radiotherapy after breast-conserving surgery.After target definition,treatment planning was performed by RapidAre and two fixed fields dynamic IMRT respectively on the same CT scan.The target dose distribution,homogeneity of the breast,and the irradiation dose and volume for the lungs,heart,and eontralateral breast were read in the dosevolume histogram (DVH) and compared between RapidAre and IMRT.The treatment delivery time and monitor units were also compared.Results In comparison with the IMRT planning,the homogeneity of clinical target volume (CTV) ,the volume proportion of 95% prescribed dose (V95%) was significantly higher by 0.65% in RapidAre (t =5.16,P = 0.001) ,and the V105% and V110% were lower by 10.96% and 1.48 % respectively,however,without statistical significance (t =-2.05 ,P =0.055 and t =-1.33 ,P =0.197).The conformal index of planning target volume (PTV) by the Rap~dAre planning was (0.88±0.02),significantly higher than that by the IMRT planning [(0.74±0.03),t = 18.54,P < 0.001].The homogeneity index (HI) of PTV by the RapidArc planning was 1.11±0.01,significantly lower than that by the IMRT planning (1.12±0.02,t =-2.44,P =0.02).There were no significant differences in the maximum dose (Dmax) and V20 for the ipsilateral lung between the RapidArc and IMRT planning,but the values of V10,V5 ,Dmin and Dmean by RapidArc planning were all significantly higher than those by the IMRT planning (all P < 0.01).The values of max dose and V30 for the heart were similar by both techniques,but the values of V10 and V5 by the RapidArc planning were significantly higher (by 18% and 50% ,respectively).The V5 of the contralateral breast and lung by the RapidArc planning were increased by 9.33% and 3.04% respectively compared to the IMRT planning.The mean MU of the RapidArc was 608 MU,significantly higher than that by the IMRT planning (437 MU,t = 10.86,P < 0.001).The treatment time by the RapidArc planning was 111.3 s,significantly longer than that by IMRT planning (103.6 s,t = 3.57,P = 0.002).Conclusions The RapidArc planning improves the dose distribution of CTV and homogeneity of PTV for breast cancer radiotherapy after breast-conserving surgery.However,it significantly enlarges the volume of normal tissues irradiated in low dose areas,prolongs the treatment delivery time,and increases the MU value in comparison with IMRT.

Objective To investigate the association between Bsml polymorphism in vitamin D receptor (VDR) gene and diabetic nephropathy in Chinese Han population. Methods PCR-restriction fragment length polymorphism (PCR-RFLP) was used to test the genotype and allele frequency of Bsml in 304 patients with type 2 diabetes mellitus (DM group) and 100 healthy individuals (NC group).The DM group was further divided into non-diabetic nephropathy group (DN0 group,122 cases),minimal albuminuria group (DN1 group,87 cases),and mass albuminuria group (DN2 group,95 cases).Eighty-three DM patients without nephropathy for over 5 years were L-NDN subgroup,and 64 DM patients with nephropathy occurring within the first year were EDN subgroup. Results Genotype and allele frequency of BsmI polymorphism were significantly different between DM and NC group (x2=7.088,P=0.008;x2=5.865,P=0.015).BB+Bb genotype and B allele frequency were significantly higher in DN2 group than those in NC group (x2=14.287,P=0.000;x2=12.621,P=0.000) and DN0 group (x2=8.063,P=0.005;x2=8.173,P=0.004).BB+Bb genotype and B allele frequency were significantly higher in EDN group than those in L-NDN group (x2=7.228,P=0.007; x2=5.853,P=0.016).DN patients with allele B (BB and Bb genotypes)presented higher urinary albumin excretion rates compared with patients without allele B (bb genotype,P＜0.01).The genotype of BsmI was correlated with DN,and allele B was risk factor of DN occurrence and early onset (OR=2.004; OR=2.394). Conclusion VDR gene BsmI polymorphism is associated with DN,and the patients carrying allele B are more involved in mass albuminuria and eady onset of nephropathy.

Objective To study the effect of lipopolysaccharide(LPS)on the endo-pulmonary natrium channel(ENaC)expression in the lung of rats with acute lung injured.Method Sixteen rats were randomly divided into normal control group and LPS-group.Rats of normal control group and LPS-group were killed at 6 hours after intravenous injection of normal saline(8 ml/kg)or LPS(8 mg/kg).The extent of lung injury was assessed by arterial blood gas analysis and histological examination.At the same time,?-ENaC protein and???- ENaC mRNA expression in the lung tissue were analyzed by immunohistochemistry and RT-PCR.Results PaO_2 in LPS-group was noticeably lower than in normal control group(P

OBJECTIVETo explore rest, cold compress and elevate (RICE) with rest, compress and elevate (RCE) without cold for the treatment of acute ankle sprain, in order to clear mid-term clinical effects.

METHODSEighty-nine patients with acute ankle sprains were collected from January 2013 to March 2014,including 30 males and 59 females aged from 18 to 60 years old with an average of 36 years old; the time from injury to hospital ranged from 3 to 24 h with an average of 9 h. All patients were divided into two groups according to visiting sequence. There were 45 patients in RICE group, and 45 patients in RCE groups. The main therapeutic effect index was evaluated by Karlsson scoring, and secondary therapeutic effect index was pain and satisfactory VAS scores. Safety index evaluated by adverse event.

RESULTSOn the 2nd weeks after injury, Karlsson score in RICE group was 44.66 ± 11.58, and 46.67 ± 8.52 in RCE group, while there was no statistical significance between two groups in Karlsson scores (P > 0.05). Karlsson score of two groups after treatment were higher than before treatment. There was no significantly meaning in pain and satisfactory VAS scores between two groups (P > 0.05). No adverse reaction were occurred between two groups.

CONCLUSIONCold compress did not receive much more final gains, and no evidence showed cold compress could affect recovery of joint function.

Acute Disease ; Adolescent ; Adult ; Ankle Injuries ; physiopathology ; therapy ; Case-Control Studies ; Cold Temperature ; Female ; Humans ; Male ; Middle Aged ; Sprains and Strains ; physiopathology ; therapy

OBJECTIVETo investigate the cost-effectiveness of fish oil in patients undergoing major surgery and those with systemic inflammatory response syndrome(SIRS).

METHODSA retrospective study was conducted in patients undergoing major surgery and those with SIRS on admission in the Zhongshan Hospital from January 2008 to December 2011. Fish oil group was enrolled and matched to control group by 1:2 for gender, age, diagnosis, and surgical procedure. There were 220 pairs of patients who were not admitted to ICU, 102 pairs of patients admitted to ICU, and 66 pairs of patients with SIRS. The clinical outcomes and costs were measured and cost-effectiveness analyses were conducted.

RESULTSThe clinical outcomes and costs showed no significant difference between the fish oil group and the control group in those patients who were not admitted to ICU(P>0.05). Fish oil fat emulsion supplementation significantly reduced the length of total hospital stay, postoperative hospital stay, ICU stay, re-operation rate, infection rates, perioperative mortality in patients admitted to ICU and those with SIRS(P<0.05). The cost-effectiveness ratio of non-reoperation rate, non-infection rate, and survival rate were lower in those patients receiving fish oil fat emulsion as compared with those without fish oil administration. Fish oil fat emulsion supplementation could reduce cost-effectiveness ratios of non-reoperation rate, non-infection rate and survival rate by 105 RMB, 160 RMB, and 89 RMB respectively in major surgical patients who admitted to ICU, and by 670 RMB, 280 RMB, and 220 RMB respectively in SIRS patients.

CONCLUSIONSAddition of fish oil fat emulsion to clinical nutrition may have positive effects on critically ill patients. It seems that the effects of fish oil fat are strongly related to the severity of patient's underlying disease. Fish oil fat emulsion supplementation shows acceptable cost-effectiveness ratio and pharmacoeconomic value.

Aged ; Cost-Benefit Analysis ; Fat Emulsions, Intravenous ; economics ; therapeutic use ; Female ; Fish Oils ; economics ; therapeutic use ; Humans ; Male ; Middle Aged ; Parenteral Nutrition ; economics ; methods ; Postoperative Care ; Retrospective Studies ; Surgical Procedures, Operative ; Systemic Inflammatory Response Syndrome ; therapy

OBJECTIVETo discuss the results and significance of the detection of the CFTR gene mutation in azoospermia patients with congenital unilateral absence of the vas deferens (CUAVD).

METHODSWe collected peripheral blood samples from 6 azoospermia patients with CUAVD for detection of the CFTR gene mutations and single nucleotide polymorphisms. We analyzed the genome sequences of the CFTR gene in comparison with the website of the UCSC Genome Browser on Human Dec. 2013 Assembly.

RESULTSMissense mutation of c. 592G > C in exon 6 was found in 1 of the 6 azoospermia patients with CUAVD and splicing mutation of c. 1210-12T[5] was observed in the noncoding region before exon 10 in 2 of the patients, both with the V470 haplotype in exon 11.

CONCLUSIONMutations of the CFTR gene can be detected in azoospermia patients with CUAVD and the detection of the CFTR gene mutation is necessary for these patients.

Azoospermia ; genetics ; Cystic Fibrosis Transmembrane Conductance Regulator ; genetics ; Exons ; Humans ; Male ; Male Urogenital Diseases ; genetics ; Mutation, Missense ; genetics ; Vas Deferens ; abnormalities

The aim of this study was to detect the localization and level of tyrosine phosphorylated proteins during in vitro capacitation of guinea pig sperm. Sperm from mature guinea pigs were incubated in modified TALP under 5% CO_2 in air at 37 ℃. The capacitation effect was assessed by chlortetracycline (CTC) staining. Western blotting and indirect immunofluorescence were used to analyze the level and localization of tyrosine phosphorylation. The results showed that guinea pig sperm underwent a time-dependent increase in protein tyrosine phosphorylation during the in vitro capacitation and the percentage of protein tyrosine phosphorylated sperm increased from 36% to 92% from the beginning of incubation to 7h incubation. Also, there was a shift in the site of phosphotyrosine-specific fluorescence from the head of sperm to both the head and the flagellum of sperm. Moreover, there were three proteins phosphorylated in this experiment. After 0 to 0.5h incubation, the protein of 40kDa was detected by anti-phosphotyrosine monoclonal antibody, and the intensity of this protein increased in the following incubation. Then, after 1h incubation, another protein of 80kDa was found and the level of this protein reached the highest point at 3h. Also, in 3h incubation, a protein of 45kDa was detected and the intensity of this protein increased in the following incubation.