Objective To know the requirement of medication safety of patients during hospital stay, to direct the clinical nursing work, and to provide the scientific basis for clinical service. Methods The requirements of medication safety of 103 inpatients were surveyed through the convenience sampling method and using a self-designed questionnaire. The surveyed contents included 12 aspects such as the name of medicine, pharmacological effect and storage method, and so on. Results The inpatients hoped to know the knowledge of safety medication, especially paying attention to the special medication method (86.9%), the pharmacological effect (84.6%), the adverse effect of medicine (82.3%) and the factors influencing the effect of medicine (83.8%). There were statistical meanings in the 12 aspects among the patients with different education levels (P<0.05). There were statistical meanings in the period of medicine validity and pharmacological effect among patients with different gender. There were statistical meanings in the period of medicine validity among patients with different ages and patients without past medical history. Whether the patients took the medicine or not had statistical meaning in the period of medicine treatment. Conclusions To know the requirement of medication safety of inpatients can help the nurses adopt the corresponding measures and provide the pertinent nursing service to patients, thereby improving the quality of nursing service.

OBJECTIVETo study the relationship between tissue quantitative distribution and pharmacokinetics of 3H-achyranthes bidentata ecdysterone and the channel-tropism of herbal drugs in mice.

METHOD3H-achyranthes bidentata ecdysterone was used as a tracer agent and injected into mice by the caudal vein. In 36 hours, the contents of the tracer agent of samples involving 9 different tracing phases and organ or tissue were determined in order to observe the dynamic quantitative distribution and excretion and pharmacokinetics of 3H-achyranthes bidentata ecdysterone and to understand the channel-tropism of herbal drugs achyranthes bidentata.

RESULT3H-achyranthes bidentata ecdysterone of same organs in different tracing phases and the contents of 3H-achyranthes bidentata ecdysterone in same tracing phases of different organs were significantly different (P<0.01). 3H-achyranthes bidentata ecdysterone was mainly distributed, in the liver, kidney, adrenal gland, small intestine and lung. The concentration-time profiles of achyranthes bidentata ecdysterone in rats injected into mice by the caudal vein were shown to fit a two-compartment open model with half-lives of (778.65 +/- 12.36) min, the elimination of achyranthes bidentata ecdysterone from plasma was found to be in accord with linear kinetics.

CONCLUSIONThe above mentioned selective distribution of 3H-achyranthes bidentata ecdysterone basically coincides with the meridian affinity and zang fu selection of the traditional Chinese medicine drug Achyranthes bidentata. This study will provide a scientific basis for the channel-tropism of A. bidentata.

Achyranthes ; chemistry ; Animals ; Drugs, Chinese Herbal ; metabolism ; pharmacokinetics ; Ecdysterone ; metabolism ; pharmacokinetics ; Isotope Labeling ; Male ; Meridians ; Mice ; Organ Specificity ; Tissue Distribution ; Tritium ; chemistry

OBJECTIVETo study the change in ultrastructure of C6 glioma cells after photodynamic therapy (PDT), to compare morphological differences in necrosis and apoptosis before and after PDT treatment, and to evaluate the effect of photodynamic therapy on the blood brain tumor barrier (BTB) of C6 glioma.

METHODSThe model was produced by transplanting C6 glioma cells cultured in vitro using Peterson method into the caudate nuclei of Wister rats. The experiment group received PDT for two weeks after the operation. The sub-cellular structure, blood-brain-barrier (BBB) and BTB in both groups were observed under electron microscope.

RESULTSApoptosis in different phases and necrosis could be observed in some C6 glioma cells. Swelling occurred on the ultrastructure of cellular organs such as mitochondria and endoplasmic reticulum in most of the cells. Damage to the BTB, reduction of the number of cellular organs in endothelial cells of the capillary blood vessels, stretch of the tight junction, and enlargement of the gaps between endothelial cells were also seen in the experiment group. Meanwhile, limited impact on the normal sub-cellular structures and BBB was observed.

CONCLUSIONPDT could induce apoptosis and necrosis of C6 glioma cells due to the damage to the ultrastructure of mitochondria and endoplasmic reticulum. The weakened function of C6 glioma BTB initiated by PDT makes it possible to perform a combined therapy of PDT and chemotherapy for glioma.

Animals ; Blood-Brain Barrier ; Brain Neoplasms ; drug therapy ; ultrastructure ; Cell Line, Tumor ; Glioma ; drug therapy ; ultrastructure ; Photochemotherapy ; Rats

Objective - To investigate the effect of lung flora dysbiosis on the process of pulmonary fibrosis and lung epithelial （ ） Methods - mesenchymal transition EMT in mice with silicosis. Male C57BL/6 mice of specific pathogen free grade were ， ， ， （ ） randomly divided into the blank control group silicosis model group solvent control group vancomycin VM + ampicillin （ ） ， （ ） （ ） ， AMP group metronidazole MNZ + neomycin NEO group and mixed treatment group 12 mice in each group. Except for ， ， the blank control group which was given 20.0 µL of 0.9% NaCl solution the other five groups of mice were dosed with 20.0 µL of silica dust suspension at a mass concentration of 250.0 g/L using a single tracheal drip to establish the silicosis mouse model. ： The intranasal drip method was used to treat silicosis mice in each group as following mice in the solvent control group were - ； ； given double distilled water mice in the VM+AMP group were given VM at a mass concentration of 0.5 g/L and AMP at 1.0 g/L ； mice in the MNZ+NEO group were given MNZ at a mass concentration of 1.0 g/L and NEO at 1.0 g/L mice in the mixed ， treatment group were given the same doses of the four antibiotics mentioned above all in a drip volume of 50.0 µL. Silicosis ， ， mice were treated seven days and half an hour before silica dusting and 7 14 and 21 days after silica dusting. Mouse lungtissue was collected aseptically 28 days after silica dusting. Hematoxylin eosin and Masson trichrome staining methods were - used to observe the pathological changes. Western blotting was used to detect the relative protein expression of α smooth muscle （ - ）， - （ - ） （ ） actin α SMA E cadherin E CAD and vimentin VIM . Immunohistochemistry was used to detect the relative expression of - - E CAD and VIM. Real time fluorescence quantitative polymerase chain reaction was used to detect the expression levels of （Col1a2） Results collagen type Ⅰ alpha 2 mRNA in lung tissues. The histopathological results showed that the alveoli of the ， blank control group were thin and structurally intact with few surrounding infiltrating inflammatory cells and no abnormal ， distribution of collagen fibers. The alveoli of the silicosis model group were structurally disorganized with a large number of ， ， infiltrating inflammatory cells thickened alveolar walls and cellular fibrous nodules with abundant blue collagen deposit. In the ， ， VM+AMP group MNZ+NEO group and the mixed treatment group the inflammation and fibrosis were reduced with diferent degrees in the lung tissues compared to the silicosis model group and the solvent control group. The relative expression levels of - ， Col1a2 α SMA VIM protein and mRNA in lung tissues of mice in the silicosis model group were higher than those in the blank （ P ）， -CAD control group all <0.05 and the relative expression levels of E protein were lower than those in the blank control （P ） - ， Col1a2 group <0.05 . The relative expression levels of α SMA VIM protein and mRNA in lung tissues of mice in the MNZ+ （ P ）， -CAD NEO group and the mixed treatment group were lower all <0.05 and the relative expression levels of E protein were （P ）， Conclusion higher <0.05 when compared with the silicosis model group and the solvent control group. Pulmonary fibrosis ， - was reduced in silicosis mice with interventions in lung flora where anaerobic and gram negative bacteria affected pulmonary fibrosis and dysbiosis of the lung flora affected pulmonary EMT.

Objective To investigate the ICU nurses' mastering degree about the related knowledge of "severe infection and guidelines for the treatment of septic shock", and to evaluate the effect of centralized training in sepcial knowledge. Methods A centralized training was given to the ICU nurses of our hospital based on the contents of guidelines. The nursing staff's mastering degrees about the related knowledge of resuscitation therapy of septic shock were surveyed using a questionnaire before and after the training. Results The rate of awareness about the contents of guidelines in ICU nurses of this group after the training increased by 28.5% compared to that after the training. The total scores before and after the training and the scores of four aspects were compared. The total scores were (14.50±3.53) and (16.08±4.29) before and after the traning, respectively. The difference had a statistical meaning (P < 0. 05). Conclusions The ICU nurses' mastering degrees about the related knowledge of severe infection and treatment of septic shock are not adequate. The training of related knowledge can improve the nursing staff's mastering degrees of knowledge.

Aim To investigate the role and specific mechanisms of muscle factor Irisin in regulating the intracellular protective protein Sirtl and mitochondrial uncoupling protein 2 (UCP2) during myocardial hypoxia. Methods H9c2 cells were treated with CoC12 for 24 hours to construct an in vitro hypoxia model of myocardial cells. Six groups were divided in this experiment; control group (control), Irisin group (10 nmol • L

OBJECTIVETo evaluate the prognostic significance of preoperative serum albumin in patients with gastric cancer undergoing radical resection.

METHODSA total of 146 patients with gastric cancer underwent radical resection from January 2001 to December 2003. Clinicopathological data were analyzed retrospectively. Patients were divided into two groups, including patients with a normal preoperative serum albumin level(>35 g/L, n=115) and patients with hypoalbuminemia (≤35 g/L, n=31).

RESULTSPatients with a low albumin level were associated with a higher postoperative recurrence rate(90.3% vs. 43.5%, P<0.01). The overall 5-year survival rate in patients with a normal serum albumin level was significantly higher than that in patients with a low serum level(57.4% vs. 9.7%, P<0.01). On multivariate analysis, preoperative serum albumin level was an independent factor associated with survival(P<0.01). When stratified by nodal metastasis, normal serum albumin level was still associated with higher survival rate(P<0.05). Prognostic significance was found in patients with lower stomach cancer(P<0.01), but not in patients with cancer in the upper and middle stomach(P>0.05).

CONCLUSIONHypoalbuminemia is associated with worse survival in patients with cancer in the lower stomach and adjuvant therapy should be considered.

Adult ; Aged ; Chi-Square Distribution ; Female ; Follow-Up Studies ; Humans ; Kaplan-Meier Estimate ; Male ; Middle Aged ; Prognosis ; Proportional Hazards Models ; Retrospective Studies ; Serum Albumin ; metabolism ; Stomach Neoplasms ; blood ; surgery

BACKGROUNDDifferent diagnostic and grading systems of conjunctivochalasis have resulted in apparent disparity between the prevalence rates of recent population-based studies. This study aimed to investigate the disparity between 4-level system cited from Meller and Tseng in 1998 (abbreviated here as Meller's system) and 5-level system modified from Meller's system cited from Zhang and associates (abbreviated here as Zhang's system) regarding the diagnosis and the patients' preferences for the treatment of conjunctivochalasis in the general population.

METHODSA total of 546 senile residents living in the Guiyangyuan community of Shanghai, China, participated in the study. The diagnostic criteria for conjunctivochalasis were based on two diagnostic grading systems: Meller's system and Zhang's system, which was modified from Meller's system. The participants' preference regarding medical treatment for conjunctivochalasis was determined according to the response to a question. One year later, a follow-up interview determines whether the patient had undergone surgery for conjunctivochalasis.

RESULTSWith Meller's system, 398 participants were confirmed as having conjunctivochalasis, and the prevalence rate was 72.89%. According to Zhang's system, only 213 participants were diagnosed as having conjunctivochalasis, and the prevalence rate was 39.01%. A total of 109 eyes underwent medical treatment or surgery for conjunctivochalasis in the following year, including eight eyes that were diagnosed as grade II and 101 eyes that were diagnosed as grade III according to Meller's system and five eyes that were diagnosed as grade I, 55 eyes that were diagnosed as grade II, 31 eyes that were diagnosed as grade III, and 18 eyes that were diagnosed as grade IV according to Zhang' system.

CONCLUSIONDiagnoses of conjunctivochalasis using Zhang's system are more consistent with patient requests and the medical treatment strategies used than diagnoses made using Meller's system.

Aged ; Aged, 80 and over ; Conjunctival Diseases ; diagnosis ; epidemiology ; pathology ; Female ; Humans ; Male ; Middle Aged

This study was aimed to explore whether the conditioned culture medium of human umbilical cord-derived mesenchymal stem cells (hUC-MSC) has supportive effects on hematopoiesis in vitro. hUC-MSC were cultured in 75 cm(2) culture flasks at a concentration of 2×10(6) cells per flask. After 48 h, the conditioned culture medium was harvested. CD34(+) cells were isolated with the human cord blood CD34 positive selection kit. The CD34(+) cells were plated in three different culture systems: the culture supernatant from hUC-MSC added into incomplete methylcellulose without recombinant human cytokines as conditioned culture medium; the complete methylcellulose medium with recombinant human cytokines as positive control medium; incomplete methylcellulose adding DMEM/F12 with 10% FBS instead of conditioned culture medium as the negative control medium. After 14 days of culture, colonies containing ≥ 50 cells were scored and types of colonies were classified under inverted microscope. The immunophenotypes of cells which were collected from the colonies were detected by flow cytometry. The results showed that conditioned culture medium of hUC-MSC supported the differentiation of CD34(+) cells into CFU-G (47.67 ± 0.58), CFU-GM (48.67 ± 4.73) and CFU-M (3.00 ± 2.00) in vitro, while the CFU-E, BFU-E or CFU-GEMM were absent. Comparatively, in the positive control medium all kinds of CFU were observed. Interestingly, the percentage of CD45(+)cells of CFU in conditioned culture medium (97.43 ± 2.15)% was more than CD45(+)cells in positive control medium (39.69 ± 0.96)% (P < 0.05). It is concluded that the conditioned culture medium of hUC-MSC has been confirmed to have ability to support hematopoiesis separately in vitro. Besides, it enhances the differentiation of CD34(+) cells into myeloid cells except cells of erythroid lineage.
Antigens, CD34 ; Cell Differentiation ; Cells, Cultured ; Culture Media, Conditioned ; Fetal Blood ; cytology ; Hematopoiesis ; Humans ; Mesenchymal Stromal Cells ; cytology ; Umbilical Cord ; cytology

AIMTo record funny currents (If) of ventricular myocytes and to analysize hyperpolarization-activated cation channel(HCN) expression in the rats of different ages.

METHODSFresh ventricular myocytes were isolated from 3 days rats and adult rats.HCN expressions were measured by real-time quantitative polymerase chain reaction(real-time PCR). It was recorded through whole-cell patch clamp.

RESULTSHCN1, HCN2, HCN3, HCN4 mRNA represented 0.23% +/- 0.01%, 83.58% +/- 0.04%, 0.79% +/- 0.01%, 15.44% +/- 0.01% of total HCN mRNA in the neonatal rats, respectively. If was recorded and the threshold for activation was -75 mV. In the adult rat, HCN1, HCN2, HCN3, HCN4 mRNA represented 0.72% +/- 0.02%, 91.58% +/- 0.08%, 0.27% +/- 0.02%, 7.12% +/- 0.02% of total HCN mRNA. The ratio of HCN2 to HCN4 was approximately (13.06 +/- 0.21):1. The threshold for activation of If was approximately -115 mV in the adult rats.

CONCLUSIONWith the development of rats, the value of If is smaller. The threshold for activation of If is more negative. The ratio of HCN2 to HCN4 is bigger.

Age Factors ; Animals ; Animals, Newborn ; Cells, Cultured ; Cyclic Nucleotide-Gated Cation Channels ; metabolism ; physiology ; Heart Ventricles ; cytology ; Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels ; Ion Channels ; metabolism ; Myocytes, Cardiac ; cytology ; physiology ; Patch-Clamp Techniques ; Potassium Channels ; metabolism ; physiology ; RNA, Messenger ; metabolism ; Rats ; Rats, Sprague-Dawley