OBJECTIVE To study and improve the washing methods for the metal piping medical instruments. METHODS Some contaminated metal uteroventral scraping and drawing instruments were randomly divided into group A(by the ultrasonic vibration with proteinase washing method)and group B(by the traditional manual washing method). The effects of two washing methods were studied. RESULTS The qualified rate of experimental samples in the group A was higher than that in the group B(P

Objective: To observe the short-term effects of electroacupuncture at different acupoints on patients with hemiplegia after cerebral infarction. Methods: Patients with cerebral infarction were randomly allocated into a group of electroacupuncture nerve trunk and a group nerve trunk or routine acupoints, respectively, once a day, for 14 d. Results: Electroacupuncture at nerve trunk had better effects than at routine acupoints. The short-term improvement of electroencephalogram had significant differences (P＜0.05). Conclusion: Electroacupuncture at the nerve trunk could improve the neurologic impairment and brain function, and it has a better result than routine electroacupuncture.

AIM: To obtain the high expression of recombinant human stem cell factor - thrombopoitin (SCF-TPO) fusion gene and predict its structure property. METHODS: Tour primers were designed according to known sequence of TPO and SCF to amplify the functional amino acid domain of TPO and SCF by RT- PCR, respectively from fetus hepatocytes. The expression plasmid pET32a/SCF- TPO was constructed by VOE gene fusion technique and expressed in BL21(DE3)plysS. The fusion protein property, such as second structure, flexibility, and hydrophilicity were predicted by DS Gene and Protscale software. RESULTS: The expression vector, pET32a/SCF - TPO was constructed and the high expression of the SCF/TPO fusion protein was obtained, with the expression amount of up to 40% of the total cellular protein. DS Genel .5 and Protscale predict no new antigenicity in fusion protein, and the second structure and ioelectric point have no changes except four amino acids change in first structure. There are high flexibility and low hydrophilieity in the linker peptide. CONCLUSION: High expression of SCF- TPO fusion protein has been obtained and protein prediction shows that the fusion protein design is reasonable, which lay foundation for further study of biological fundation of SCF - TPO fusion protein.

BACKGROUND:The greatest risk of osteoporosis in total knee arthroplastyisperioperative and long-term periprosthetic fractures. However, limited by the traditional concept of osteoarthritis patientswhousualy not associated with osteoporosis, domestic clinical trials have not given enough attention to the osteoporosis before total knee arthroplasty.
OBJECTIVE:To analyze the osteoporosis and its relative factors in osteoarthritis patients before total knee arthroplasty.
METHODS:Data of 81 cases (81 knees) of knee osteoarthritiswhounderwenttotal knee arthroplasty in the Department of Joint Surgery of Tianjin People’s Hospital from January 2012 to November 2014 were retrospectively analyzed. They received lumbar spine and hip bone mineral density examination before surgery. The correlation of bone mineral density with age, body mass index, knee motion range,and knee deformity was analyzed before surgery. The independent risk factors for osteoporosis before replacement were analyzed.
RESULTS AND CONCLUSION:(1) Of 81 patients, there were normal bone mineral density in 25 cases (31%), osteopenia in 35 cases (43%),andosteoporosis in 21 cases (26%). Al 10 males had no osteoporosis and 21 in 71 female cases suffered osteoporosis (30%). Theincidence of osteoporosis in females was significantly higher than in male patients (P=0.046). (2) There was a linear correlation of bone mineral density with age and body mass index (correlation coefficientr=-0.230, 0.225). (3) The age of≥65 years and body mass index≥25 kg/m2were independent risk factors of osteoporosis before replacement (P< 0.05). (4) Patients with knee osteoarthritis had higher incidence of osteopenia and osteoporosis before total knee arthroplasty. The degree of osteoporosis was negatively correlated with age, but positively correlated with body mass index. The age of≥65 years and body mass index < 25 kg/m2were independent risk factors for preoperative osteoporosis. Thus, bone mineral density examination is essential for those patients before total knee arthroplasty.

Antibodies, Monoclonal, Murine-Derived ; therapeutic use ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Humans ; Lymphoma, Follicular ; drug therapy ; Rituximab

OBJECTIVEA prospective, multicenter and non-interventional prospective study was conducted to evaluate the clinical features of rituximab combined with chemotherapy (R-Chemo) as first-line treatment on newly diagnosed Chinese patients with diffuse large B-cell lymphoma (DLBCL).

METHODSThis was a single arm, prospective, observational multicenter and phase IV clinical trial for 279 patients, who were newly diagnosed as CD20-positive DLBCL from 24 medical centers in China 2011 and 2012, no special exclusion criteria were used. All patients received rituximab based R-Chemo regimes, such as R-CHOP (rituximab plus cyclophosphamide, doxorubicin, vincristine and prednisolone) and other regimes as the first-line treatment. The treatment strategies were determined by physicians and patients without detailed description for treatment course, dose, interval time and examination. Clinical response and safety of all patients were investigated in 120 days after completion of last dose of rituximab.

RESULTSOf 279 patients, 258 with stage I-IV who received at least 1 cycle of rituximab treatment and completed at least one time of tumor assessment were enrolled into intention-to-treat analysis, including 148 male and 110 female. The median age of all patients was 57.2(12.8-88.4) years. ECOG performance statuses of 0 or 1 were observed in 91.1% of patients, international prognostic index levels in the low-risk and low-middle-risk groups in 76.4% of patients, the tumor diameters smaller than 7.5 cm in 69.0% of patients. All patients received 6 median cycles of R-Chemo treatment every 24.4 days. R-CHOP treatment was shown to improve the clinical response with overall response rates of 94.2%. Common adverse events included anemia, marrow failure, leukopenia, thrombocytopenia, digestive diseases, infection and liver toxicity. All adverse events are manageable.

CONCLUSIONNon-interventional clinical trial of R-Chemo remains the standard first-line treatment for newly diagnosed patients with DLBCL in real clinical practice, which is consistent with international treatment recommendations for DLBCL patients. R-Chemo can provide the clinical evidence and benefit as the first-line standard treatment for Chinese patients with DLBCL.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Antibodies, Monoclonal, Murine-Derived ; therapeutic use ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Child ; Female ; Humans ; Lymphoma, Large B-Cell, Diffuse ; drug therapy ; Male ; Middle Aged ; Prospective Studies ; Rituximab ; Treatment Outcome