Objective To investigate the diagnostic value of procalcitonin (PCT) ,C‐reactive protein(CRP) and white blood cell (WBC) count in children with respiratory tract infection .Methods A total of 358 children inpatients with respiratory tract infec‐tion in the pediatric department of our hospital from 2014 January to June 2015 were selected and divided into the bacterial infection group and non‐bacterial infection group according to the throat swabs and sputum culture results .The venous blood was collected before and after treatment for detecting PCT ,CRP and WBC count ;meanwhile 30 healthy children were selected as the control group .Results The PCT ,CRP and WBC levels in the bacterial infection group were significantly increased compared with the non‐bacterial infection group and control group(P<0 .01) ,while which in the non‐bacterial infection group were relatively close to those in the control group(P>0 .05);but the PCT ,CRP and WBC count levels after 1‐week treatment in the bacterial infection group were significantly decreased compared with before treatment (P<0 .01) ,while which in the non‐bacterial infection group had little change between before and after treatment (P>0 .05) .Conclusion The combined detection of PCT ,CRP and WBC count has an important application value in the differential diagnosis and medication guidance of the children′s respiratory tract infection .

[Abstra ct] Objective To investigate the long-term efficacy and adverse effects of intensity-modulated radiotherapy (IMRT) for nasopharyngeal carcinoma (NPC).Methods A total of 869 patients with biopsy-proven NPC without distant metastasis who underwent the whole course of IMRT from 2009 to 2010 were enrolled.Of all the patients, 84.8%received cisplatin-based chemotherapy.The prescribed dose to the primary lesion in the nasopharynx was 66-70Gy in 30-32 fractions, and the dose to the positive lymph nodes in the neck was 66 Gy in 30-32 fractions.The Kaplan-Meier method was used to calculate survival rates, the log-rank test was used for difference analysis and univariate prognostic analysis , and the Cox proportional hazards model was used for multivariate prognostic analysis .Rseu lts The 5-year overall survival( OS ) , local recurrence-free survival, regional recurrence-free survival, distant metastasis-free survival, and disease-free survival ( DFS ) were 84.0%, 89.7%, 94.5%, 85.6%, and 76.3%, respectively.In the patients with locally advanced NPC,concurrent chemotherapy tended to reduce distant metastasis (83.6%vs.75.7%, P=0.050) and improve OS (82.6%vs.77.0 %, P=0.082).Induction chemotherapy tended to improve OS ( 80.7% vs.71.4%, P=0.057 ) , and the induction chemotherapy containing docetaxel or gemcitabine tended to improve OS (83.3%vs.72.2%, P=0.058).The patients who received a boost after the initial radiotherapy had a significantly lower DFS rate than those who did not (52.2%vs.71.1%, P=0.004).The concurrent chemotherapy increased the incidence rates of long-term xerostomia and trismus, while a high dose of cisplatin increased the incidence rates of xerostomia and hearing impairment.Conclusions IMRT for NPC provides satisfactory long-term efficacy.Concurrent chemotherapy combined with IMRT tends to reduce the incidence of distant metastasis, and other values need further investigation.The boost therapy after radiotherapy may be associated with poor prognosis.Chemotherapy increases the incidence of long-term toxicities.

Objective To explore the research of Jianpi-Huatan decoction resisting the nude mouse MFC hepatic metastasis and its mechanism. Methods MFC cells inoculation in nude mice spleen, establishing nude mice hepatic metastasis model, which are divided into model group, 5-fu injection group, Jianpi-Huatan decoction high, medium and low dose group according to radom number table. Mice in high, medium and low dose Jianpi-Huatan decoction groups were adiminstrated with 80,40 and 20 g/kg Jianpi-Huatan decoction,in 5-fu groups were adiminstrated by intraperitoneal injection with 60mg/kg 5-fu injection and in model groups with Physiological saline once a day for 4 consecutive weeks. After the end, calculate the nude mice weight, spleen tumor weight and evaluation of hepatic metastases. And immune histochemical method and RT-PCR method is applied to detect tumor tissue of the expression of P53, Bcl-2 protein and mRNA. Results Compared with model group, Jianpi-Huatan decoction high and medium dose group can obviously increase body weight[(21.40 ± 1.43)g, (21.70 ± 1.02)g vs.(20.37 ± 1.17)g] and reduce the in situ tumor weight [(0.26 ±0.13)g,(0.16 ±0.05)g vs.(0.63 ±0.17)g]and the number of liver metastases;the mRNA levels of P53 and Bcl-2 (8.32 ±0.38,5.42 ±0.45,3.09 ±0.26 vs.9.67 ±1.31)and(4.65 ±0.61,3.22 ±0.21,2.49 ±0.19 vs.5.32 ±0.42) were decreased in low,medium and high dose Jianpi-Huatan decoction groups;P53(76.11 ±5.23,45.20 ±3.77, 23.11 ± 3.14 vs.81.63 ± 5.01)and Bcl-2(58.67 ± 5.27,32.00 ± 3.13,19.00 ± 2.54 vs.63.00 ± 4.10)levels were down-regulated in each dose of Jianpi-Huatan decoction group.Conclusions Jianpi-Huatan decoction can restrain nude mouse transplantation tumor growth and hepatic metastasis, which related to the cut of the expression of P53, Bcl-2 gene and protein.