Objective: To study the protective effects of polypeptide-Fe on acute hepatic injury induced by CCl4 in mice. Method:Mice model of acute hepatic injury was set up by CCl4 ig (50mg/kg?d ). and fed with polypeptide-Fe 67.5 mg/kg?d, 675 mg/kg?d and 2 025 mg/kg?d for 30 d respectively. The effects on serum ALT, AST, and ALP and liver TG, TC, GSH, MDA, and SOD avtivities were observed. Results: Polypeptide-Fe decreased the activities of ALT, AST, and ALP in serum and the levels of TG, TC, and MDA in liver, and increased the level of GSH in liver. Middle dosage group of polypeptide-Fe was the most effective one. Conclusion:Polypeptide-Fe showed significant antioxidant ability in protecting acute hepatic injury induced by CCl4 in mice.

Objective: To study the change of chemokine receptor CXCR2 in monocytes in postmenopausal women with coronary artery disease (CAD) after estrogen replacement therapy. Methods: Randomized placebo controlled trial was conducted in 22 post menopausal women with CAD and 20 normal menopausal women by giving 0.625 mg premarin daily or vitamin C treatment for 3 months. Serum estradiol (E 2) and chemokine receptor CXCR2 in peripheral blood monocytes were measured at 0 and 3 months of treatment. Results:(1) E 2 and CXCR2 levels in the CAD group was lower than that in the normal group ( P

OBJECTIVE:To establish a method for simultaneous determination of ethinylestradiol and norelgestromin in hor-monal patches. METHODS:RP-HPLC method was performed on column of WondaCract ODS-2 with mobile phase of metha-nol-0.5% phosphoric acid(68∶32,V/V)at a flow rate of 1.0 ml/min,the detection wavelength was 220 nm,the detection tempera-ture was 25 ℃,and sample volume was 20 μl. RESULTS:The linear relationship was 0.872-130.8 μg/ml for ethinylestradiol(r=0.999 6) and 0.880-132.0 μg/ml for norelgestromin (r=0.999 7);RSDs of precision,reproducibility and stability tests were no more than 1.03%,average recoveries were resectively 101.50%(RSD=0.99%,n=9) and 101.68%(RSD=0.95%,n=9). CON-CLUSIONS:The established method is simple and accurate,and can be used for the content determination of ethinylestradiol and norelgestromin in hormonal patches.

OBJECTIVETo observe the effect of C-reactive protein (CRP) on the expressions of Notch pathway components in human peripheral blood endothelial progenitor cells (EPC) in vitro.

METHODSMononuclear cells isolated by density gradient centrifugation of human peripheral blood mixed with 6% hydroxyethyl starch (Hes) were plated on fibronectin-coated 6-well culture dishes. After 7 days, the adherent cells were cultured in the presence of 10 and 20 mg/L CRP for 48 h, and the proliferation, migration, and adhesion abilities of the cells were observed. The mRNA expressions of Notch-1 and its ligand Jagged-1 in the EPCs were measured by RT-PCR, and their protein expressions by Western blotting.

RESULTSCRP at 10 and 20 mg/L caused a significant reduction in the number of viable EPCs (61∓3 and 54∓3, respectively) as compared with PBS (71∓4, P<0.05). CRP also resulted in a significant suppression of the proliferation, migration and adhesion capacities of the EPCs. The mRNA and protein expressions of Jagged-1 and Notch-1 in the EPCs significantly increased following CRP exposure in comparison with PBS treatment.

CONCLUSIONCRP can suppress the proliferation, migration and adhesion capacities of the EPCs probably by affecting the expressions of the Notch-1 pathway components.

C-Reactive Protein ; pharmacology ; Calcium-Binding Proteins ; genetics ; metabolism ; Cell Adhesion ; Cell Movement ; Cell Proliferation ; Cells, Cultured ; Endothelial Cells ; cytology ; metabolism ; Humans ; Intercellular Signaling Peptides and Proteins ; genetics ; metabolism ; Jagged-1 Protein ; Leukocytes, Mononuclear ; cytology ; metabolism ; Membrane Proteins ; genetics ; metabolism ; RNA, Messenger ; genetics ; metabolism ; Receptor, Notch1 ; genetics ; metabolism ; Serrate-Jagged Proteins ; Signal Transduction ; drug effects ; Stem Cells ; cytology ; metabolism

OBJECTIVETo establish a culture system for Psammosilene tunicoides hairy roots, and provide technological aid for the large-scale production of P. tunicoides material.

METHODThe young leaves and stem segments of sterile plantlets were infected with ACCC10060 strain, and subsequently a culture system suitable for hairy roots growth was further established.

RESULTWhen explants were co-cultured with ACCC10060 (A600 0.8) on B5 media containing 20 mg x L(-1) Acetosyringo (AS) for 48 h, the hairy roots could be successfully induced, and it could achieve a higher induction rate using young leaves as explants than that of stem segments. The transfected hairy roots possessed the ability of kanamycin resistance and growth on hormone-free media, and synthesis of opines. All above results demonstrated that the present hairy roots originated in the infection of P. tunicoides tissues by ACCC10060 strains. After 35 d culture in liquid hormone-free MS (1/2 strength), the biomass of hairy roots increased 14.11 times (fresh weight) and 8. 39 times (dry weight), respectively, and the content of total saponins in hairy roots reached to 0.857% (DW), by contrast, it's only 0.388% and 0.217% in callus and seedlings respectively.

CONCLUSIONEstablishment of hairy roots culture of P. tunicoides provided a foundation for industrial production of active components from P. tunicoides culture.

Biomass ; Caryophyllaceae ; growth & development ; microbiology ; Culture Techniques ; Plant Roots ; growth & development ; microbiology ; Rhizobium ; physiology ; Saponins ; analysis

OBJECTIVE: To study the correlation between DNA methylation patterns and gene expression in Down syndrome (DS). METHODS: Induced pluripotent stem cells (iPSCs) derived from normal controls and DS patients were subjected to whole genome bisulfite sequencing and differentially methylated region (DMR) screening. Statistical analysis for chromosomal and gene element distribution were carried out for DMR. Gene ontology (GO) and enrichment-based cluster analysis were used to explore the molecular function of differentially expressed genes. RESULTS: A total of 1569 DMR were identified in iPSCs derived from DS patients, for which the proportion of hypermethylation in promoter regions was significantly greater than that of the genebody. No DMR enrichment was noted on chromosome 21. Hypermethylation of the promoter and genebody was predicted to be inhibitory for gene expression. Functional clustering revealed the pathways related to neurodevelopmental, stem cell pluripotency and organ size regulation to be significantly correlated with differentially methylated genes. CONCLUSION Extensive and stochastic anomalies of genome-wide DNA methylation has been discovered in iPSCs derived from DS patients, for which the pattern and molecular regulation of methylation were significantly different from those of normal controls. Above findings suggested that DNA methylation pattern may play a vital role in both the pathogenesis of neurodevelopmental disorders and other phenotypic abnormalities during early embryonic development.
DNA Methylation ; Down Syndrome/genetics* ; Female ; Humans ; Induced Pluripotent Stem Cells ; Pregnancy ; Promoter Regions, Genetic ; Whole Genome Sequencing

OBJECTIVETo explore the clinical efficacy of early application of sequential gastrointestinal lavage in patients with acute paraquat poisoning by analyzing the clinical data of 97 patients.

METHODSA total of 97 eligible patients with acute paraquat poisoning were divided into conventional treatment group (n = 48) and sequential treatment group (n = 49). The conventional treatment group received routine gastric lavage with water. Then 30 g of montmorillonite powder, 30 g of activated charcoal, and mannitol were given to remove intestinal toxins once a day for five days. The sequential treatment group received 60 g of montmorillonite powder for oral administration, followed by small-volume low-pressure manual gastric lavage with 2.5%bicarbonate liquid. Then 30 g of activated charcoal, 30 g of montmorillonite powder, and polyethylene glycol electrolyte lavage solution were given one after another for gastrointestinal lavage once a day for five days. Both groups received large doses of corticosteroids, blood perfusion, and anti-oxidation treatment. The levels of serum potassium, serum amylase (AMY) alanine aminotransferase (ALT), total bilirubin (TBIL), blood urea nitrogen (BUN), creatinine (Cr), lactate (Lac), and PaO₂of patients were determined at 1, 3, 5, 7, and 10 days. Laxative time, mortality, and survival time of dead cases were evaluated in the two groups.

RESULTSThe incidence rates of hypokalemia (<3.5 mmol/L) and AMY (>110 U/L) were significantly lower in the sequential treatment group than in the conventional treatment group (P < 0.05). There were no significant differences in the incidence of ALT (>80 U/L), TBIL (>34.2 µmol/L), BUN (>7.2 mmol/L), and Cr (>177 µmol/L) between the two groups (P>0.05). However, the highest levels of ALT, TBIL, BUN, Cr, and Lac were significantly lower in the sequential treatment group than in the conventional treatment group (P < 0.05). Moreover, the sequential treatment group had significantly lower incidence of PaO₂(<60 mmHg), shorter average laxative time, lower mortality, and longer survival time of dead cases than the conventional treatment group (P < 0.05).

CONCLUSIONThe early application of sequential gastrointestinal lavage can shorten laxative time, alleviate organ damage in the liver, kidney, lung, and pancreas, reduce mortality, and prolong the survival time of dead cases in patients with acute paraquat poisoning.

Acute Disease ; Bentonite ; administration & dosage ; Bilirubin ; Blood Urea Nitrogen ; Charcoal ; Combined Modality Therapy ; Creatinine ; Gastric Lavage ; methods ; Humans ; Liver ; Paraquat ; poisoning ; Poisoning ; therapy ; Treatment Outcome

Objective To investigate the physics technique and quality assurance (QA) during radiotherapy in the institutions from the East Guangdong province,aiming to provide reference for the construction of radiotherapy discipline and rational allocation of resources in the primary hospitals from the eastern Guangdong province.Methods From March 15 to May 20,2016,the general conditions,radiotherapy equipment,available technique and quality assurance (QA) in the medical institutions from eastern Guangdong were investigated and analyzed by online combined with on-spot surgery.Results There were 8 institutions which provided radiotherapy with 966 ward beds,a daily capacity of 632 patients and 222 radiotherapy practitioners.Radiotherapy equipment included 12 linear accelerators,5 after-loading devices,1γ-knife,8 CT simulators and 9 radiotherapy planning systems.Five institutions performed IMRT/VMAT,IGRT and ART.Dose verification was performed before precision radiotherapy delivery in all institutions except for 1 center.QA procedures were missing for the linear accelerators,CT simulators and after-loading devices.Short-term advanced studies and hand-by-hand teaching were the main approaches for staff professional training.Conclusions The resource allocation for radiotherapy in the medical centers from the eastern Guangdong province is scarce.The technique and QC levels greatly differ among different institutions.Standard QA protocols are urgently to be established and implemented.Extensive attentions should be paid to the the professional training for technicians.

Lateral epicondylitis is a common clinical disease with characteristics of lateral elbow pain, insidious onset and easy recurrence, which can cause forearm pain and decreased wrist strength, seriously affecting patients′ daily life and work. Although there are various treatment methods for lateral epicondylitis with different effects, standard treatments are still lacking nowadays. Platelet-rich plasma (PRP) has good effects on bone and tendon repair, and is now widely used in the treatment of lateral epicondylitis. However, there is a lack of a unified understanding of the technology and specifications of PRP in the treatment of lateral epicondylitis. Therefore, the Sports Medicine Branch of the Chinese Medical Association and Physical Medicine and Rehabilitation Branch of the Chinese Medical Association organized experts in the fields of sports medicine and rehabilitation medicine in China to formulate the "clinical expert consensus on platelet-rich plasma treatment for lateral epicondylitis (2022 version)", and proposed suggestions based on evidence-based medicine mainly from the concept, epidemiology and pathophysiology of lateral epicondylitis, symptoms, signs and imaging manifestations of lateral epicondylitis, PRP concept and application component requirements, quality control of PRP preparation technology, indications and contraindications of PRP in the treatment of lateral epicondylitis, PRP injection in the treatment of lateral epicondylitis, application of PRP in the operation of lateral epicondylitis, related problems after PRP treatment of lateral epicondylitis, evaluation of the results after PRP treatment of lateral epicondylitis, and health and economic evaluation of PRP treatment of lateral epicondylitis, so as to provide guidance for clinical diagnosis and treatment.

OBJECTIVE：To understand the current management situation and problems of residual drugs in medical institutions in China ，evaluate the practice effect of corresponding control mode of our hospital and to explore the countermeasures to reduce the production of residual drugs and standardize its management. METHODS ：By random sampling ，30 third-level hospitals and 20 second-level hospitals in different regions were selected respectively during May 1st to 31st in 2019. For the pharmaceutical personnel，doctors，nurses and other non-pharmaceutical personnel ，a self-designed questionnaire on the status quo of residual drugs in medical institutions was issued. Excel 2010 software was used to count basic data of valid questionnaire ，and the causes ， management status ，disposal status and possible hazards of residual drugs in medical institutions were analyzed. A management mode of residual drugs was established and implemented （involving reducing the generation of sources ，implementing process management，and strictly implementing disposal ）. The effects of the model were evaluated ，then the countermeasures and suggestions were put forward . RESULTS & CONCLUSIONS：A total of 400 questionnaires were sent out ，and 311 valid questionnaires were collected with effective recovery rate of 77.75％. The causes of drug residual were complicated ，which included the“combination”of the same drugs ，the pre-order dispensing ，adverse drug reactions ，poor compliance of patients ，wrong order imput，sudden transfer ，discharge or death of patients ，wrong dispensing or nurse check error ，etc. The management status of residual drugs was chaotic ，the disposal methods lacked of standardization ，which may lead to harm such as deterioration ，illegal Δ 基金项目：重庆市技术预见与制度创新项目（No.cstc2018jsyj- recycling and pollution . The established whole-link residual zdcxX0093） drug management model in our hospital ，mainly included ＊主管药师 ，硕士。研究方向 ：药事管理 、抗肿瘤药理 。电话： measures of introducing Clinical Departments Residual Drug 023-68774769。E-mail：513293274@qq.com Safety Management Regulations to clarify the responsibilities # 通信作者：主任药师，博士生导师，博士。研究方向：药事管理、 of management group ， clinical department ， pharmacy 临床药学。电话：023-68755580。E-mail：zrcq73@163.com department； using rational medication control software to 中国药房 2020年第31卷第8期 China Pharmacy 2020Vol. 31 No. 8 ·897· reduce prescription error ；increasing the frequ ency of drug inventory ；introducing Drug Withdrawal and Refund Management to clear out drug withdrwal process ；independently researching and developing “Residual Drug Recovery Management System ”to standardize and simplify the recovery process ；bringing the residual drugs into special fund project management for medical assistance. According to the operation management practice from Jan. to Oct. 2018，a total of more than 1 million yuan worth of residual drugs were recovered. The residual drugs that did not meet the recovery conditions should be destroyed according to the specified process ，and the case number of non-standard notification of ward management would significantly reduced. The whole-link mode management established by our hospital can effectively reduce the production of residual drugs and standardize their management and disposal. It is suggested that the state or province should issue special regulations on the management of residual drugs in medical institutions ，and each medical institution should formulate specific management measures suitable for its own unit. Meanwhile ，the management of residual drugs in medical institutions should be further standardized systematically by actively exploring the ways to reduce residual drugs ，formulating the corresponding financial account processing standards ， supporting incentive mechanism and other measures.