Hedging is an important component of vague language. This paper retrieves high frequency expressions of hedgingby using medical English corpus. Pragmatic functions of hedging are analyzed, which can be summarized as politeness principle, authors' self-protection, avoidance of the absolute, pursuit of objectiveness as well as conversational implication. To medical researchers, it is necessary to cultivate the awareness of hedging and learn how to adopt it in their research papers.

ObjectiveTo investigate the risk factors,prevention measures and treatment methods of the pulmonary fibrosis patients with nosocomial pulmonary fungal infection. Methods50 pulmonary fibrosis patients with nosocomial pulmonary fungal infection were chosen as the observation group. In the same time,50 pulmonary fibrosis patients without nosocomial pulmonary fungal infection were chosen as the control group. The following factors were compared: hospital stay, corticosteroid use, antibiotic use, invasive procedures, a merger of the underlying disease.ResultsThere were 46％ (23/50) patients had long-term use of antibiotics in the observation group, much more than the control group(26％ ,13/50) ,the difference was statistically significant( P ＜0.05) ;More than half of patients in both groups using glucocorticoids, the ratio in the observation group was 84％ (42/50), which was significantly higher than the control group( P ＜ 0.05) ; In the observation group, the rates of patients with long time hospitalization ( ≥30 days), received invasive procedures, and associated with underlying diseases were much higher than the control group( all P ＜ 0.05). ConclusionMultiple risk factors could lead to the occurrence of pulmonary fibrosis patients with nosocomial pulmonary fungal infection,and the positive and effective preventions and standard treatment should be taken.

Objective:To explore the clinical application of permanent needle of deep venipuncture in early management of extensive burn.Methods:88 patients with extensively burn are analyzed.Results:The success rate of venipuncture was 96%.The effect was satisfactory,while the complication was less.Conclusion:The permanent needle of deep venipuncture shows an important role in early management of extensive burn.

Primary central nervous system lymphoma (PCNSL) is a rare type of extranodal lymphoma, and its incidence rate is increasing nowadays. Chemotherapy is the main means for treatment of PCNSL and the efficacy of high-dose methotrexate (HD-MTX) has been confirmed among those chemotherapeutics. Treatments of HD-MTX combined with other drugs have been studied extensively. Progress of HD-MTX and other drugs for PCNSL are reviewed in this article.

Ear Diseases ; diagnosis ; therapy ; Humans ; Magnetic Resonance Imaging

Cancer stem cells are defined as the unique subpopulation in the tumors that possess the abili-ty to initiate tumor growth and sustain self-renewal as well as metastatic potential.Accumulating evidences in recent years strongly indicate the existence of cancer stem cells in solid tumors of a wide variety of organs.In recent years,many cancer stem cells have been found,including leukemia,breast cancer,brain ttunor,liv-er cancer,colon carcinoma,etc.In this review,we will discuss the conception and origin of the gastric cancer stem cells,and their role in the development of multi-drug resistance.

Objective To observe the efficacy and safety of compound glycyrrhizin and famciclovir in the treatment of herpes zoster. Methods 98 patients with herpes zoster were randomly divided into 2 groups. The treatment group were administrated with compound glycyrrhizin for a week. The control group were administrated with famciclovir for a week. The time of blister stop, crust formation, pain disappearance and cure was observed after 10 days. The rate of postherpetic neuralgia was observed too. Results The difference was significant between treatment group and control group in the time of blister stop [(2.38±0.76)d,(2.97±0.89)d], crust formation [(5.15±1.42)d, (6.91±1.97)d], pain disappearance [(4.06±1.34)d, (6.05±1.83)d] and cure [(7.32±2.21)d, (9.86±2.77)d] (all P<0.05). The difference of the rate of postherpetic neuralgia was insignificant between two groups (2%,4.2%) (P0.05). Conclusion Combined therapy of compound glycyrrhizin and famciclovir was safe and effective for the treatment of herpes zoster.

Objective To investigate the metabolism of lipid,calcium and phosphorus in women with endometriosis.Methods Clinical data of 223 patients with endometriosis and 200 patients without endometriosis were retrospectively analyzed.Electrochemiluminoimmunoassay was used to detect the levels of serum luteinizing hormone(LH),follicle-stimulating hormone(FSH),testosterone(T),estradiol(E2)and progesterone(P),and photoelectric colorimetry was used to determine the concentrations of serum triglyceride ( TG), total cholesterol ( TC ), low density lipoprotein ( LDL), high density lipoprotein (HDL), calcium and phosphorus in the patients with and without endometriosis. Results The levels of serum P were 2. 0 nmol/L and 1.8 nmol/L in endometriosis patients with age≤35 years old (case group A)and ＞35 years old (case group B), and 1.6 nmol/L and 1.2 nmol/L in patients without endometriosis at age≤35 years old (control group A) and ＞ 35 years old (control group B), respectively. A significant difference was found between case group A and control group A, and between case group B and control group B. The levels of serum LH was significantly higher in case group B (7. 2 U/L) than that in control group B (6. 1 U/L), however, there was no significant difference between case group A (7. 0 U/L) and control group A (6. 5 U/L). Also no significant difference in serum FSH, T and E2 levels was found between case group A (respectively, 6.2 U/L,1.1 nmol/L and 269 pmol/L) and control group A (respectively, 6.3 U/L, 1.1nmol/L and 264 pmol/L), also between case group B (respectively, 6.6 U/L, 1.0 nmol/L and 345pmol/L) and control group B (6. 6 IU/L, 0. 9 nmol/L and 279 pmol/L). The concentrations of serum TG in case group A and B (0. 71 mmol/L and 0. 72 mmol/L) were significantly lower than in control group A and B (0. 92 mmol/L and 1.08 mmol/L), respectively. The concentrations of serum LDL in case group A and B [ (2. 2 ± 0. 5) mmol/L and (2.4 ± 0. 6) mmol/L]were also significantly lower than in control group A and B[ (2. 4 ± 0. 7) mmol/L and (2. 62 ±0. 63) mmol/L], respectively. However, the concentrations of serum HDL in case group A and B [ (1.62 ± 0. 31) mmol/L and(1.53 ± 0. 32) mmol/L] were significantly higher than in control group A and B [ ( 1.48 ± 0. 21 ) mmol/L and ( 1.37 ± 0.22) mmol/L], respectively.In addition, the concentrations of serum TC were not significantly different between case group A and control group A [ (4. 2 ± 0. 7) mmol/L and (4. 29 ± 0. 71 ) mmol/L], and between case group B and control group B [ (4. 4±0. 8) mmol/L and (4. 5±0. 7) mmol/L]. The levels of serum phosphorus in case group A and B [ (1.01 ± 0. 22) mmol/L and (0. 89 ± 0. 18 ) mmol/L] were significantly lower than in control group A and B [ ( 1.23 ± 0. 24) mmol/L and ( 1.10 ±0. 13 ) mmol/L ] , respectively. But the levels of serum calcium had no significant difference between case group A and control group A [ (2. 39 ± 0. 23 ) mmol/and (2.41 ± 0. 12) mmol/L], and between case group B and control group B [(2.40 ± 0.28) mmol/L and (2. 42 ±0. 20) mmol/L]. Conclusion The abnormal metabolism of lipid and phosphorus, and the higher levels of serum P may playing a role in the pathogenesis of endometriosis.

As the increasing of digital imagilag modalities,a close-at-hand challenge to deal with is the storage and transmission requirement of enormous data of medical images.Compression is one of the indispensable techniques to solve this problem.A comprehensive review and discussions are made in this paper over the medial image compression techniques applied in medical image domain,including the latest achievements in this field.Different compression algorithm including ROI-based coding,lossless compression,DWT,neural net are introduced and some quality evaluation methods are introduced.Foreground of the field is given from our point of view.

AIM　To improve the treatmemt efficacy and reduce the side effect of carboplatin (CBP), the antitumor drug was incorporated into niosomes (NS). METHODS　Lung targeted niosomes of CBP (CBP-NS) were prepared by the method of hand shaking. The ultraviolet absorption spectrophotometric method was used for the determination of CBP. The method of dynamic dialysis was used for in vitro release of CBP from CBP-NS. The S-180 lung neoplasms models were established by iv cancer cells in mice. The number of pulmonary nodules was examined for evaluating the therapeutic efficacy. RESULTS　The data showed that the mean diameter of CBP-NS was 3.72 μm, with a span of 0.66. The entrapment ratio of CBP in CBP-NS was 29.2% and the CBP-NS were stable for three months stored at 3℃-5℃, 15℃-25℃ or 37℃ (relative humidity 75%). The release profile in vitro could be described by a biexpotential equation. The calculated values of the three targeting parameters indicated that CBP-NS showed good targeting efficiency. The results of therapeutic trials showed that the antitumor effects were significantly increased by injection of CBP-NS compared with CBP in the treatment of mice with lung carcinoma. CONCLUSION　The results indicated that CBP-NS have good targeting efficiency in vivo, and the biodegradable CBP-NS may decrease the side effects of carboplatin and improve its therapeutic efficacy.