Observating 13 neonates who accepted mechanical ventilating reatment for respiratory failure, the important methods about the nurse of the neonatal respiratory tract were summarized. The clinical nursing care, the nutritionsurpporting,and the reducing complication of the mechanical ventilation in neonates were emphasized.

Deifnitive treatment for locoregionally advanced squamous cell carcinoma of the head and neck region (HNSCC) is challenging, and usually require multidisciplinary efforts involving surgery, radiotherapy, and chemotherapy. Although surgery followed by radiation or chemoradiation therapy remains the standard treatment for resectable disease, combined chemoradiation therapy provides an effective option with organ spearing potential. In addition, combined chemoradiation therapy is the only treatment option for non-metastatic advanced HNSCC. Recently published results from TAX323 and TAX324, two important randomized clinical trials on the efficacy of induction chemotherapy using docetaxel based regimen, showed that induction chemotherapy using TPF can signiifcantly improve patients’ survival as compared to the conventional PF regimen. However, whether TP or TPF induction chemotherapy should be combined with concurrent chemoradiation and considered as part of the standard treatment regimen remains controversial, and requires support from the results of well-designed randomized clinical trial.

Objective:To investigate the effects of rapamycin on allograft rejecti on and immune response in mice. Methods:The heterotopic ear-hea rt grafting or sk in grafting were done in mice. The delayed type hypersensitivity (DTH) response i nduced by dinitro-fluorobenzene (DNFB), the production of hemolysin of mouse sensitized by sheep red blo od cell (SRBC) and the neutral red phagocytosis of the peritoneal macrophage wer e also tested in mice. Results:RAPA significantly blocked allograft reject ion of heart and skin, markedly inhibited DTH response and decreased the production of hemolysin,but had no significant effect on the neutral red phagocytosis of the p eritoneal macrophage. Conclusion:RAPA potently blocked allograft rej ections in mi ce and suppressed cellular and humoral immune response, but had no significant e ffect on phagocytoses of macrophage.

OBJECTIVE:To establish a method for the determination of related substances in Levo-cetirizine hydrochloride chewable tablet. METHODS:RP-HPLC was performed on the column of Venusil XBP-CN with mobile phase of acetonitrile-0.05 mol/L Sodium dihydrogen phosphate solution(pH value adjusted to 3.0 by phosphoric acid)(60∶40,V/V)at a flow rate of 1.0 ml/min, the detection wavelength was 230 nm,column temperature was 25 ℃,and volume injection was 20 μl. RESULTS:Levo-cetirizine hydrochloride chewable tablet showed good separation with related substances;the linear range of levo-cetirizine hydrochloride was 1.2-2.8 μg/ml(r=0.999 9);the quantification limit and detection limit was 1.4 ng/ml and 0.3 ng/ml,respectively;RSDs of preci-sion,stability and reproducibility tests were lower than 1%;recovery was 96.3%-105.0%(RSD=1.7%,n=9);the contents of re-lated substances were no more than 0.17%. CONCLUSIONS:The method is simple,sensitive,reproducible,accurate and reli-able,and can be used for the determination of related substances in Levo-cetirizine hydrochloride chewable tablet.

Radiotherapy is an important therapeutic method in the management of head and neck cancer.However,since the head and neck region has many important functions of the human body,radiotherapy may cause serious sequelae.Proton and heavy ion radiotherapies have better radiophysical and biological properties compared with conventional proton beam and are beneficial to tumor control and protection of normal tissue.The advantages of proton and heavy ion radiotherapies have been demonstrated in soft tissue tumors (especially skull base chordoma and chondrosarcoma),malignant melanoma,and adenoid cystic carcinoma resistant to conventional protons in the head and neck region,and the safety of proton and heavy ion radiotherapies have been confirmed in reirradiation for recurrent tumors.

This paper reviews the current research of the influencing factors and nursing interventions in traumatic brain injury of patients with increased intracranial pressure.Summarizes the various nursing interventions methods such as position,hypothermia,sputum suction, basic nursing to preventing or reducing increased intracranial pressure of patients. We expect to provide the references in reducing patient′s increased intracranial pressure meanwhile maintaining adequate cerebral perfusion, preventing complications and improving the prognosis.

Carcinogenesis is a multistep process that a couple of genes involve in the initiation of this disease.As a pivotal hallmark of cancer, the genomic instability ensues in which genetic alterations when this process was initialized and developed. With the increasing number of studies on genomic instability, the scientists pay more attentions on its biological function at post-genomic era. Genomic instability in various carcinomas is associated with broken telomere, gene modification, and contributes to the dysfunction of DNA damage and repair pathways.This review focus on the factors involved in genomic instability, as well the current detection methods of genomic instability and their clinical application.

In presnt experiment, animal models for hyperthyroidism and hypothyroidism were made, and using radioimmunoassay, the immunoeactive leucine-enkephalin (Ir-LEK) levels of such discrete brain areas as hypothalamus, striatum, cerebral cortex(frontal lobe) and whole pituitary were determined in different groups. The results obtained indicated that both hyperthyroidism and hypothyroidism induced significant changes of concentration in CNS Ir-LEK. It was found in hypothyroid group that concentration of Ir-LEK in hypothalamus, cerebral cortex and pituitary increased significantly against the control (P

Objective To investigate the clinical significance of the changes of hemodynamics and electrolyte during orthotopc liver transplantation.Methods We studied 9 patients undergoing elective orthotopic liver transplantation without venovenous bypass,drew out arterial blood for monitoring arterial blood gas tensions,Na~+,K~+,Ca~(2+) and observed changes in hemodynamics and electrolyte.Results In most patients,arterial pressure significantly decreased at the prophase of the anhepatic phase,and tended to normal range in other phases.The concentration of calcium maintained a low-level during the whole surgery.During the prophases of the anhepatic phase and neo-hepatic phase,there was a light hyperkalemia,and the concentration of natrium slightly increased since 30 minutes after the anhepatic phase and neohepatic phase,but insensibly exceeded normal range.With resuming of the stability of hemodynamics,these changes had followed.Conclusion We shoud give our attention to correct the occurrence of the hypocalcemia during the forepart of the anhepatic phase and neo hepatic phase,and care for the hyperkalemia 5 minutes after the block of liver blood purveyance and revascularization of liver.The lock of body capability shoud be recruit duly according to the lose of blood and hemacytometer changes.In order to prevent serious academia and maintain the stability of hemodynamics and electrolyte,vasoconstrictor shoud be used carefully during the anhepatic phase.

Objective To investigate the method and the effects of the surgical treatment of massive subretinal hemorrhage and vitreous hemorrhage associated with age related macular degeneration. Methods A retrospective study of 14 consecutive patients underwent a complete pars plana vitrectomy. Retinotomy was carried out for removing subretinal hemorrhage by using balanced salt solution. Complete air fluid exchange and gas or silicone oil tamponade were performed in all patients. The follow up period was within 3～7 months. Results Atrophy of eyeball in 2 eyes (14.3%) postoperatively. Improvement of corrected final visual acuity and anatomical retinal reattachment were achieved in 12 (85.7%) of the 14 eyes postoperatively. Seven days after operation, muddy sand hemorrhage in anterior chamber occurred in 4 (28.6%) of the eyes and paracenteses of anterior chamber were performed for these eyes. Conclusion Surgical intervention should be applied in the eyes with the massive subretinal hemorrhage associated with age related macular degeneration in order to avoid the affected eyes becoming atrophic due to the subsequent complication of vitreous hemorrhage, anterior chamber muddy sand hemorrhage,ghost cell glaucoma or retinal detachment.