OBJECTIVE: To evaluate the stability of epirubicin hydrochloride solutions for clinical use prepared from three different formulations (one concentrated solution and two powders for injection). METHODS: Epirubicin hydrochloride in three formulations was dissolved or diluted in 0.9% sodium chloride to prepare the test solutions with concentration of 0.4mg · mL-1. These solutions were stored at different temperatures and under different shading circumstances, and samples were collected periodically during the storage to evaluate the stability, including visual inspection, pH value and content of epirubicin. RESULTS: All epirubicin solutions were stable when stored at 2-8°C under dark condition for 40 d with average content of greater than 93.76%. When stored atroom temperature with or without light exposure for 40 d, only the solution diluted from the concentrated water solution for injection was stable, as the average content remained above 92.57%. While the solutions prepared from the other two powders for injection were not stable, as the average content fell below 90% at room temperature after 2-7 d. CONCLUSION: Epirubicin solutions prepared from three different formulations are stable when stored either at 2-8°C under dark condition for 40 d or at room temperature for 24 h. The solution prepared from the concentrated water solution for injection is more stable than the solutions prepared from the two powders for injections when stored at room temperature for a long period (40 d).

Objective To investigate the prevalence,radiological features and the association between HRCT changes and different diseases or clinical features in interstitial lung disease(ILD)caused by diffuse connective tissue diseases(CTD).Methods Retrospective analysis was performed based on the medical records of 412 in-patients with the diagnosis of diffuse connective tissue diseases from June 2003 to June 2005 in our hospital.268 cases were SLE,83 cases were SS,40 cases were DM/PM,21 cases were SSe.All patients had chest X-ray and the suspected cases had HRCT exam.The distribution of ILD among different diffuse CTD.the appearance between X-ray and HRCT appearances were compared.The correlation among HRCT appearance,different diseases and clinical features was studied.Results①In the 412 cases of CTD,ILD de- tected by HRCT was 9.7%(40 case in total),3,9% by X-ray.Among the 40 cases,DM/PM had the highest rate of ILD(25%),23.8% in SS,9.6% in SS and 6.3% in SLE.②The consensus rate between HRCT and X-ray was 40%.The rate of mis-diagnosis of ILD was 60% by X-ray.③The changes of interstitial involvement de- tected by HRCT were:ground glass change(41.0%),consolidation(32.8%),reticular change(16.4%)and hon- eycomb change(9.8%).The concomitant presence of two of the above changes were very common.④More level respiratory symptoms such as cough,panting,chest distress and chest pain and high level of complement were observed in patients with ground glass and consolidation changes,while high CRP level was seen in patients with consolidation and honeycomb changes(P

OBJECTIVE: To study correlation between physical properties and compressibility and compactablility of Microcrystalline cellulose. METHODS: After determining the physical properties such as particle size distribution, moisture capacity, angle of repose, bulk density, tapped density, the powder was tableted by the Korsch XP1 at the same filling height, and data derived from heckle model, plasticity constant, cumulative elastic recovery, tensile strength and it's changes with time were evaluated. RESULTS: The physical properties of microcrystalline cellulose had great effect on its compactablility as well as cumulative elastic recovery out of die, but not on compressibility. And pressure applied correlated closely with changes of tensile strength in storage, which was intensified by the influence of water in powder on the particle size. CONCLUSION: Microcrystalline cellulose shows excellent compressibility, however, particle size reduction is able to decrease the compactability. Since the water in powder can increase particle size by changing internal structure of particles and plays a prerequisite role in lubrication and adherence, the variation of water content may weaken the compatability of microcrystalline cellulose and worsen the mechanical strength stability of tablets in storage.

Child, Preschool ; Humans ; Male ; Neurilemmoma ; Spinal Canal ; Spinal Neoplasms

Cryptococcosis ; complications ; Eosinophilia ; etiology ; Humans ; Lung Diseases, Fungal ; complications

Aged, 80 and over ; Echinocandins ; adverse effects ; therapeutic use ; Humans ; Lipopeptides ; Liver ; drug effects ; Liver Function Tests ; Mycoses ; drug therapy ; Retrospective Studies

OBJECTIVETo explore the perioperative cardiovascular dysfunction and its relevance to age in patients with silent coronary heart disease (or silent myocardial ischemia), and explore the clinical treatment and recovery of perioperative arrhythmias.

METHODSOne hundred and eighty cases were selected from selective surgery patients with silent myocardial ischemia (SMI). Among the cases, 130 patients older than 51 years old were divided into 51 - 60 year-old group, 61- 70 year-old group and 71 - 80 year-old group. Control group was set up by other 50 patients younger than 51 years old. Electrocardiogram data of 24 h before the operation, 24 h after the operation and 48 h after the operation were continuously monitored by dynamic electrocardiogram (DCG). The electrocardiogram data of ST shifting, arrhythmia incidences of different type and at different time were analyzed by professional doctors. At the same time, the treatment and recovery of perioperative arrhythmia were recorded.

RESULTSAs the age increase, the magnitude and duration of ST shifting appeared upward trend compared to the control group (P < 0.05, P < 0.01). The incidence of ST elevation in 71 - 80 year-old group was higher than the control group (P < 0.05). The ST depression duration in 61 - 70 and 71 - 80 year-old group and ST elevation magnitude in 71 - 80 year-old group were higher than 51 - 60 year-old group (P < 0.05). Compared to the control group, the incidence of accelerated idioventricular rhythm (AIR) in 61 - 70 year-old group and the incidence of sinus bradycardia (SB), ventricular premature beat (VPB), ventricular tachycardia (VT) in 71 - 80 year-old group were higher (P < 0.05, P < 0.01). Compared to the 51 - 60 year-old group, the incidence of atrial fibrillation (AF) in 61 - 70 year-old group and the incidence of VP, VT, AF in 71 - 80 year-old group were higher (P < 0.05, P < 0.01). The arrhythmia incidences in 24 h after operation were higher than 48 h after operation and 24 h before operation (P < 0.01). As the age increase, the recovery incidence by removing inducement was decreased, but the recovery incidences by drug and electric-shock treatment were increased (P < 0.05).

CONCLUSIONOld SMI patients have high levels of perioperative myocardial ischemia and arrhythmia, and 24 h after operation is the period of high incidence.

Aged ; Aged, 80 and over ; Cardiovascular System ; physiopathology ; Coronary Disease ; physiopathology ; Female ; Humans ; Male ; Middle Aged ; Perioperative Period

Hypoxia occurs in chronic and acute vascular diseases and tumor formation. The ability of tumor cells to maintain a balance between an adaptation to hypoxia and cell death is regulated by a family of transcription factors called hypoxia-inducible factor 1 (HIF-1). Tumor hypoxia mediated by HIF-1 would facilitate the likelihood of resistance to chemotherapy and radiotherapy, proliferation, metastasis and the invasive potential; all of which culminate in a decrease in patient survival. And HIF-1 alpha subunit decides the activity of HIF-1, which is regulated by oxygen. So understanding the role of HIF in signal pathway, drug resistance mechanism and its feature is crucial for developing novel anticancer therapies. In recent years, more attentions have focused on HIF-1 alpha inhibitors. It is expected that development of more potent and selective HIF inhibitors will provide an effective treatment of cancer and other HIF-related diseases. So we will focus on the biological characteristics and mechanism of HIF-1 to review currently studied HIF-1 inhibitors.
Cell Death ; Humans ; Hypoxia-Inducible Factor 1 ; antagonists & inhibitors ; metabolism ; Hypoxia-Inducible Factor 1, alpha Subunit ; antagonists & inhibitors ; metabolism ; Neoplasms ; drug therapy ; Oxygen ; metabolism ; Signal Transduction