To deal with effectively acute chemical injury events, the service ability of protective medicine against chemical weapons has being widened from dealing with traditional chemical warfare to public chemical accident or chemical terrorist attack. Focusing on the important researching and developing of medicine for chemical defense use only, the novel drug/device combination products should be vigorously promoted including the new mechanism, good curative effect and high safety of detoxification drugs such as hydroxycobalamin used in the treatment of known or suspected cyanide poisoning in both adults and the pediatric population, and the convenient and quick drug delivering technologies such as auto-injectors with a retreat hidden needle and a smart remindful injection, which could improve greatly the emergency medical rescue ability of chemical accidents.

Auto-injector, a spring-driven drug-device based combination production that automatically injects the drug into the skin via a pre-filled syringe or cartridge, allows minimally trained individuals to self-inject potentially life-saving medication when emergency medical care may be absent or remote, and thus has been becoming a supporting approach of emergency medicine for the first-aid. The auto-injector was developed originally by the United State of America, and experienced the three outstanding states including syrettes, single chamber auto-injectors and dual chamber auto-injectors from the battlefield to the civilianization. The current auto-injector devices have five different types named as ACE (AtroPen), ComboPen, Binaject, Soluject and Truject, respectively. The applied drugs to the systems for military use have atropine, pralidoxime chloride, obidoxime, diazepam and morphine sulfate. The other drugs for emergency medical use such as epinephrine, lidocaine hydrochloride and sumatriptan have been also applied to. All of the auto-injector based combination production have been twined with a simulator in order to conduct a training schedule before use. Importantly, the needle hidden or the device-status notification technique after injection has been becoming a trend in the technology advances of the auto-injectors.

Oral modified-release multiple-unit dosage forms such as coated pellets have always been more effective therapeutic alternative to conventional single-unit dosage forms. Coated pellets ranging in size, typically, between 0.5-1.0 mm, are produced primarily for the purpose of oral controlled-release dosage forms having gastro-resistant or sustained-release properties or the capability of site-specific drug delivery. With regards to the final dosage form, the multi-particulates are usually formulated into single-unit dosage forms such as filling them into hard gelatin capsules or compressing them into tablets. As drug-delivery systems become more sophisticated, the role of pellets in the design and development of dosage forms is increasing. The safety and efficacy of the formulation is higher than that of other dosage forms. This review provides an update on this research area and discusses the phenomena and mechanisms of the multi-particulate system concluding multiple-unit pellet system and pellet-containing tablets.

Glycyrrhiza uralensis Fisch. ex DC is widely used in traditional Chinese medicine (TCM). Among its various active components, glycyrrhizic acid is believed to be the marker component. Squalene synthase (SQS) and beta-amyrin synthase (beta-AS) are key enzymes in the biosynthetic pathway of glycyrrhizic acid in G uralensis. To reveal the effects of co-expression of SQS1 and beta-AS genes on this pathway, 7 yeast expression vectors harboring different SQS1 variants and beta-AS were constructed and expressed in Saccharomyces cerevisiae as fusion proteins. TLC and GC-MS results showed that co-expression of SQS1 and beta-AS enhanced the accumulation of beta-amyrin. The effects of SQS12 were more obvious than the other two SQS1 variants. This study is significant for further investigations concerned with exploring the biosynthesis of glycyrrhizic acid in vitro and strengthening the efficacy of G. uralensis by means of increasing the content of glycyrrhizic acid.
Farnesyl-Diphosphate Farnesyltransferase ; genetics ; metabolism ; Glycyrrhiza uralensis ; genetics ; Intramolecular Transferases ; metabolism ; Oleanolic Acid ; analogs & derivatives ; metabolism ; Plant Proteins ; genetics ; Recombinant Proteins ; metabolism ; Saccharomyces cerevisiae ; metabolism

Aged ; Antigens, CD34 ; analysis ; Female ; Humans ; Immunohistochemistry ; Male ; Middle Aged ; Proto-Oncogene Proteins c-bcl-2 ; analysis ; Solitary Fibrous Tumors ; metabolism ; pathology

So far there exists no corresponding quality test procedures and grading standards for the seed of Prunus humilis, which is one of the important source of base of semen pruni. Therefor we set up test procedures that are adapt to characteristics of the P. humilis seed through the study of the test of sampling, seed purity, thousand-grain weight, seed moisture, seed viability and germination percentage. 50 cases of seed specimens of P. humilis tested. The related data were analyzed by cluster analysis. Through this research, the seed quality test procedure was developed, and the seed quality grading standard was formulated. The seed quality of each grade should meet the following requirements: for first grade seeds, germination percentage ≥ 68%, thousand-grain weight 383 g, purity ≥ 93%, seed moisture ≤ 5%; for second grade seeds, germination percentage ≥ 26%, thousand-grain weight ≥ 266 g, purity ≥ 73%, seed moisture ≤9%; for third grade seeds, germination percentage ≥ 10%, purity ≥ 50%, thousand-grain weight ≥ 08 g, seed moisture ≤ 13%.
Cluster Analysis ; Germination ; Prunus ; growth & development ; Seeds ; physiology

OBJECTIVETo study the effects of Si-Wu-Tang on serum protein of blood deficient mice b y proteomicstechnique and study the enriching and regulating blood mechanism of Si-Wu-Tang on mocular level.

METHODThe blood deficient mice was induced by using a single dose of 3.5 Gy radiation from a 60Cogamma source, and high resolution two-dimensional polyacryamide gel electrophoresis (2-DE), computer-assisted image analysis, and mass spectrometry were used to detect regulated protein by Si-Wu-Tang.

RESULT12 lower and 4 higher protein in sera could be recovered by Si-Wu-Tang, 4 protein might be DNA-dependent protein kinase catalytic subunit, Dystrophin, KIF13A, dystonin. They play a part in DNA double-stranded break repair, recombination and modulation of transcription, transportation of mannose-6-phosphate receptor, etc.

CONCLUSIONSi-Wu-Tang can regulate serum protein in blood deficient mice, resulting in improving hematopoiesis and lessening irradiated injury.

Animals ; Autoantigens ; blood ; Carrier Proteins ; Cytoskeletal Proteins ; Drug Combinations ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Dystonin ; Dystrophin ; blood ; Female ; Kinesin ; blood ; Mice ; Mice, Inbred C57BL ; Nerve Tissue Proteins ; Non-Fibrillar Collagens ; blood ; Plants, Medicinal ; chemistry ; Radiation Injuries, Experimental ; blood ; Radiation-Protective Agents ; pharmacology ; Whole-Body Irradiation

A method for the determination of Fe, Co, Mn and Ni in synthetic diamonds by inductively coupled plasma atomic emission spectrometry ( ICP-AES) was proposed. The synthetic diamond sample was decomposed completely, while the sample was burned in air at 1000 ℃ for 10 h, and then a mixed acid of H2 SO4 , aqua regia and HClO4 was used for the dissolving the residue of the sample. In this method, the limits of detection of Fe, Co, Mn and Ni were 0. 0147, 0. 0018, 0. 0006 and 0. 0027 mg/L, respectively. Under the optimum condition, Fe, Co, Mn and Ni in synthetic diamond sample were determined. The values of RSDs (n=7) were less than 0. 5%. The recoveries of added standard were 94. 0%-105. 0%.

A method for the simultaneous determination of oxygen and nitrogen in synthetic diamonds by inert gas high temperature extraction-impulse heating method was proposed. The sample weight, the selection of analysis power and the calibration curves of oxygen and nitrogen were discussed. Oxygen and nitrogen in analytical samples are determined. Values of RSDs (n=7) for oxygen and nitrogen were less than 4. 5% and 4. 0% respectively. The analytical results of oxygen and nitrogen obtained by the proposed method were in good agreement with those by inert gas fusion-impulse heating method.

OBJECTIVETo sum up the clinical experience in the management of benign prostatic hyperplasia (BPH) with the prostate weighing over 80 ml by transurethral resection of the prostate (TURP) combined with 2 μm continuous-wave laser vaporesection (LVR).

METHODSWe retrospectively analyzed the clinical effects of TURP combined with 2 μm LVR in the treatment of 46 cases of BPH with the prostate volume > 80 ml.

RESULTSAll the operations were successfully accomplished. The operation time and intraoperative blood loss were (112.0 ± 20.0) min (range 86-176 min) and (77.9 ± 25.9) ml (range 50-200 ml), respectively. The catheters were withdrawn at 7 days after surgery. Transient urinary incontinence occurred in 6 cases and secondary hemorrhage was found in 2 postoperatively. Six-month follow-up revealed no urethral stricture or other complications. Compared with the baseline, the international prostate symptom score (IPSS) was significantly decreased at 6 months after operation (26.3 ± 1.8 vs 11.6 ± 1.7, P <0.05), and so were the quality of life (QOL) score (5.3 ± 0.7 vs 1.3 ± 1.1, P <0.05) and post-void residual urine (PVR) ([115.5 ± 55.6] ml vs [19.9 ± 11.6] ml, P <0.05). However, the maximum urinary flow rate (Qmax) was remarkably increased from (4.1 ± 2.6) ml/s to (16.2 ± 1.7) ml/s (P <0.05).

CONCLUSIONTURP combined with 2 μm LVR is safe and effective for the treatment of BPH with the prostate volume >80 ml.

Aged ; Blood Loss, Surgical ; Humans ; Laser Therapy ; methods ; Male ; Middle Aged ; Organ Size ; Prostate ; pathology ; Prostatic Hyperplasia ; pathology ; surgery ; Quality of Life ; Retrospective Studies ; Transurethral Resection of Prostate ; methods ; Treatment Outcome ; Urethral Stricture ; Urinary Incontinence ; etiology ; Urinary Retention