With specific physical characters,proton for postoperative breast cancer can improve dose homogeneity,lower dose to crucial organs such as the heart,lung and the opposite breast,and reduce the complications of normal tissues and incidence of the second primary tumor proton accelerated radiation for partial breast cancer can reduce therapy time,but its long time effect needs great patients and long time follow-up to beproved.

Objective To investigate the changes of ataxia-telangiectasia mutated(ATM)-Akt in the myocardium around the infarcted zones and its intervention by phenylephrine in rats.Methods Myocardial infarction(MI) and sham operation were established in Sprague Dawley male rats by Litwin's method.Three days after operation,surviving rats were divided into MI group(n=8),sham operation group(n=8),MI phenylephrine intervention group [n=8,phenylephrine 0.65 mg/(kg?d),i.p.,for 8 weeks),and sham operation phenylephrine intervention group(n=8,phenylephrine administered as above).Cardiac left ventricular posterior wall end-diastolic thickness(LVPWd),left ventricular end-diastolic diameter(LVDd),fractional shortening(FS) and ejection fraction(EF) were examined by Doppler ultrasonography.Twelve weeks after treatment,the expression of p-ATM substrate protein and p-Akt protein in the myocardium around the infarcted zones were detected by Western blot analysis and immunohistochemical assay respectively.Results In 12 weeks after treatment,LVDd(0.79?0.06) and(0.54?0.06) cm,FS(17.31?2.60)% and(38.58?2.56)%,and EF(67.75?3.54)% and(70.25?4.33)%(P0.05),and was(0.99?0.07) and(0.65?0.04) in MI phenylephrine intervention group and sham operation phenylephrine intervention group respectively(P0.05);and were(98.80?3.17) and(75.88?2.77) in MI phenylephrine intervention group and sham operation phenylephrine interventin group respectively(P

Hypoxia-inducible factor-1 (HIF-1) is a key transciptional regulator of cellular and systemic oxygen homeostasis,composed of the two subunits,HIF-1α and HIF-1β.HIF-1α is an inducible subunit regulated by hypoxia,which is posttranslationally modified by various ways,including ubiquitination,phosphorylation,hydroxylation,acetylation and glycation,accordingly affecting its protein's stability,nuclear translocation and regulation of its target genes.Small ubiquitin-related modifier (SUMO) is an micromolecule protein participating in posttranslational modifications of proteins dynamicly in eukaryotic organism,which is similar in structure to ubiquitin.SUMOylation and deSUMOylation are involved in multiple regulations of biologic processes,such as signal transduction,transcriptional regulation,cell cycle processes and biological rhythm.SUMOylation is related to HIF-1α stability and transcription activity in hypoxia,providing a newthread to study self-regulation mechanism of HIF-1α for us.

Objective To investigate the effect of nicardipine on the time-response relationships of vecuronium and atracuriumMethods Forty ASA grade Ⅰ-Ⅱ patients undergoing elective surgical operations were randomly allocated to four groups A single dose of vecuronium was intravenously administered at twice ED 95(01mg?kg -1) in groupⅠand combined with nicardipine 20?g?kg -1 in group Ⅱ Atracurium was given at the dose of twice ED 95 (05mg?kg -1) in groupⅢ and combined with nicardipine in group Ⅳ Anaesthesia was maintained with 50% nitrous oxide in oxygen and fentanyl in all groups Neuromuscular function was monitored with Biometer accelographResults The onset time of vecuronium was shortened from 26 min (groupⅠ) to 20 min (groupⅡ) (P

Radiotherapy is one of the main treatment options for patients with advanced limited non small cell lung cancer.From the viewpoint of radiobiology,the change of fractionation schedule in radiotherapy might improve the therapeutic effect.There are many different methods of fractionated irradiation: from conventional radiation including hyperfractionated radiotherapy,accelerated radiotherapy and hypofractionated radiotherapy,etc.In this paper,we summarized the definition of the different types of fractionated irradiation, and its clinical application.

Objective To investigate the prevention and treatment of the complications due to CT-guided percutaneous transthoracic biopsy. Methods CT-guided percutaneous transthoracic needle biopsy was performed in 168 patients aged from 14 to 79 years old. The complications and the contributing factors were analyzed. The methods for the prevention and treatment of the complicaitons were suggested. Results CT-guided percutaneous transthoracic needle biopsy was succeeded in 168 cases. The major complications associated with CT-guided needle biopsy included pneumothorax (8.33%) and pulmonary hemorrhage (20.24%). Pneumothorax was associated with the lesion size, lesion location, and times of puncture. Pulmonary hemorrhage was associated with the lesion size as well as the pre-operative evaluation of the vascular structures with contrast CT. Chest tube placement was performed in 1 out of 14 cases of pneumothorax. Other cases were not particularly treated. Conclusion The prevention of complications is important for CT-guided needle biopsy. The key factors to prevention the complications include accurate location of the lesions and correct evaluation of the vascular structures before the operation and skillful intraoperative puncture.

OBJECTIVETo investigate the influence of histological prostatitis (HP) on the clinical features of benign prostatic hyperplasia (BPH) and prostate cancer (PCa) and its clinical significance.

METHODSWe retrospectively studied the data of 273 cases of BPH and 240 cases of PCa, including age, prostate volume, total prostatic special antigen (tPSA), prostatic special antigen density (PSAD), maximum urinary flow rate (MFR) and acute urinary retention (AUR).

RESULTSTotally, 186 cases of BPH (68.13%) and 45 cases of PCa (18.75%) were complicated by HP, with statistically significant difference between the two groups (P < 0.05). Compared with the patients with BPH only, those complicated by HP showed significantly elevated tPSA, PSAD and total prostate volume (all P < 0.05), decreased MFR (P < 0.05) and increased risk of AUR (P < 0.05). There was no significant difference in the patients' age between the two groups (P > 0.05). The levels of tPSA and PSAD were remarkably higher in the PCa patients complicated by HP than in those with PCa only (all P < 0.05), but no significant differences were found in the other indexes between the two groups (P > 0.05).

CONCLUSIONHP may play a certain role in the progenesis and progression of HP and PCa, but HP is associated more closely with BPH.

Aged ; Disease Progression ; Humans ; Male ; Organ Size ; Prostate ; pathology ; Prostate-Specific Antigen ; blood ; Prostatic Hyperplasia ; etiology ; Prostatic Neoplasms ; complications ; Prostatitis ; complications ; Retrospective Studies ; Urinary Retention ; etiology

In order to improve the accuracy of blood pressure measurement in wearable devices, this paper presents a method for detecting blood pressure based on multiple parameters of pulse wave. Based on regression analysis between blood pressure and the characteristic parameters of pulse wave, such as the pulse wave transit time (PWTT), cardiac output, coefficient of pulse wave, the average slope of the ascending branch, heart rate, etc. we established a model to calculate blood pressure. For overcoming the application deficiencies caused by measuring ECG in wearable device, such as replacing electrodes and ECG lead sets which are not convenient, we calculated the PWTT with heart sound as reference (PWTT(PCG)). We experimentally verified the detection of blood pressure based on PWTT(PCG) and based on multiple parameters of pulse wave. The experiment results showed that it was feasible to calculate the PWTT from PWTT(PCG). The mean measurement error of the systolic and diastolic blood pressure calculated by the model based on multiple parameters of pulse wave is 1.62 mm Hg and 1.12 mm Hg, increased by 57% and 53% compared to those of the model based on simple parameter. This method has more measurement accuracy.
Blood Pressure ; Blood Pressure Monitoring, Ambulatory ; Cardiac Output ; Electrocardiography ; Heart Rate ; Heart Sounds ; Humans ; Pulse Wave Analysis ; Regression Analysis

Objective To study the anatomic morphology of posterior column of ilium(PCI)and valne of lumbo-iliac fixation(LIF)in pelvic ring reconstruction following communited Denis Ⅲ sacral fractures.Methods A total of 17 hemi-sectional pelvis and dry ilia were selected to observe the length,width and height(safety and standard)of PCI,when a detailed description was done on the methods determining entry point and operation techniqus for iliac screws anchoring.Nine patients with eommunited sacral fractures involving Denis Ⅲ areas combined with neurologic deficits were decompressed for recovery of neurological function and reconstruction of pelvic ring by using LIF.Postoperative follow-up was done on role of LIF and result of neural rehabilitation.Results PCI was mean 110.57 mm in length,24.24 mm in width,14.54 mm in standard height and 31.46 mm in safe height.Nine patients could turn over in bed immediately following operation and walk one month later.A follow-up for 13-37 months in eight patients showed stable reconstructed pelvic ring,sound function of movement and bone graft fusion,which met the target of keeping stability of fractured extremity and pelvis.Conclusions pCI can provide anatomic support for LIF.When decompression and fixation is needed for sacral fractures combined with anterior pelvic ring disruptions,LIP can provide stable fixation and play an important role in reconstruction,nursing and rehabilitation of pelvic ring.