Effect of China-made isocrystal pirenzepine ( IPRZ ) on experimental ulcer produced by reserpine in rats was studied & the antiulcer effect of China-made IPRZ was compared with that of China-made PRZ. Our results showed that China-made IPRZ given by either sc ( 25-100 mg/kg ) or ig ( 25-100 mg/kg ) exerted a marked antiulcer effect on reserpine-induced gastric ulcer in rats.The antiulcer effect was increased with the increase of dose of China-made IPRZ. When China-made IPRZ was given by sc, its antiulcer effect was as potent as China-made PRZ, but when it was given by ig, its antiulcer effect was lower than China-made PRZ .This result suggest that the bioavailabili-ty of China-made IPRZ given by ig was lower than China-made PRZ.

Objective To observe the self-efficacy and body image changes of the patients with oral and maxillofacial deformity in pre-and post-operative.Methods 183 patients with oral and maxillofacial deformity and 200 relatives as control group were measured by applying General Self-Efficacy Scale (GSES) of Chinese version and Self-rating Scale of Body Image(SSBI).Postoperative satisfaction degree was scored by applying attitude measurement method of interval scale.Perioperative GSES,SSBI score,and postoperative satisfaction degree were statistically analyzed.Results GSES score (26.79 ± 5.26) was lower than that in control group in preoperative (29.69 ± 5.37),and the difference was statistically significant (P ＜ 0.05).While SSBI score (24.35 ± 8.59) was higher than that in control group(11.04 ± 6.67),and the difference was also statistically significant (P ＜ 0.05).GSES score in postoperative(29.52 ± 3.80) was significantly higher than that in preoperative (P ＜ 0.05).SSBI score in postoperative(18.88 ± 8.19) was significantly higher than that in preoperative (P ＜ 0.05).Postoperative satisfaction was comparatively lower for the patients whose GSES score was higher than 32 and 36 for SSBI in preoperative.Conclusion Oporation can enhance the self-efficacy of patients with oral and maxillofacial deformity and reduce the incidence of patients with body dysmorphic disorder tendency.

Objective To investigate Chlamydia trachomatis infection and gene variants in child- bearing women in Beijing. Methods Endocervical samples were collected from 177 patients in a family planning clinic and a gynecologic clinic. C.trachomatis infection was screened with a fast diagnostic kit .Major outer membrane protein(MOMP) gene was amplified by a nested PCR . A 1.1kb amplified product was obtained and studied by restriction fragment length polymorphism analysis(RFLP). Variant domains of MOMP gene VS1,VS2,VS3,VS4 were sequenced with 373A automated sequencing system. Results C. trachomatis was found in 9 of 177 samples. Four samples were identified as F genotype, 3 E genotype and 2 D genotype. Variant domains of MOMP gene, VS1, VS2, VS3, VS4 were sequenced and the results were consistent with those of RFLP, however, mutations were found in MOMP gene in 4 samples. Conclusion C.trachomatis urogenital infection has been identified in a portion of child- bearing women in Beijing. C.trachomatis can be well genotyped with RFLP or gene sequencing of MOMP gene.

Phage display is a new technology developed in recent years. Random peptides displayed on the filamentous phage surface offer a rich source of molecular diversity in searching for ligands that bind an antibody, receptor and other proteins. The phage display system has been effective in the discovery of various ligands. Potential applications of the peptide library include investigation of the protein protein interactions and discovery of mimetic drug candidates.

OBJECTIVETo develop a rapid assay for simultaneous detection of HIV p24 antigen (Ag) and anti-HIV antibody (Ab).

METHODSHIV-1 gp41 antigen and HIV-2 gp36 antigen were expressed by recombinant baculovirus insect system and purified by immunochromatography. p24 monoclonal antibody (mAb) was obtained from p24 hybridoma cell line. Purified antigen and mAb were dot blotted to nitrocellular membrane; 20 nm colloidal gold-anti-human IgG ab and p24 ab complex were used for this test. Previously detected 39 sera specimens were tested in this study to compare with the result of HIV test with commercial HIV test kit.

RESULTS20 mg/L purified gp41 Ag and gp36 Ag were obtained from recombinant baculovirus-insect cell system; 1.5 mg/L p24 mAb was obtained from p24 mAb hybridoma cell line. Compared the test result of 39 sera with commercial HIV test kits, consistency rate was 100%.

CONCLUSIONSThe rapid assay for simultaneous detection of HIV p24 antigen and anti-HIV antibody provides a simple, sensitive and reliable test for HIV diagnosis.

AIDS Serodiagnosis ; Gene Products, env ; biosynthesis ; isolation & purification ; HIV Antibodies ; blood ; HIV Antigens ; biosynthesis ; isolation & purification ; HIV Core Protein p24 ; blood ; HIV Envelope Protein gp41 ; biosynthesis ; isolation & purification ; HIV Infections ; diagnosis ; HIV-1 ; immunology ; HIV-2 ; immunology ; Humans ; Reagent Kits, Diagnostic ; standards ; env Gene Products, Human Immunodeficiency Virus

The pharmacokinetics of thyrotropirrreleasing hormone (TRH) made in China was studied in rabbits. TRH concentrations in plasma, urine and various tissues were measured by RIA. After intravenous injection of TRH, the plasma concentration-time curve was shown to fit a two compartment open model with the following pharmacokinetic parameters: 0.8 mg/kg, T1/2?=0.551 min, T1/2? = 9.374 mm, VI = 3.018 ml/kg, Vb = 22.659 ml/kg and AUC = 0.479g. L-1. m-1; 2.0mg/kg, T1/2? = 0.629 mm, T1/2?= 9.734 min, VI = 5.135 ml/kg, Vt = 28.848 ml/kg, and AUC = 0.962g. L-1. m-1; 5.0mg/kg, T1/2? =0.720 min, T1/2?= 10.738 min, VI = 6.120 ml/kg, Vb = 31.928 ml/kg and AUC=2.540 g. L-1. m-1. TRH was distributed widely in tissues and concentrated mainly in the kidney and pituitary. TRH was eliminated partly by the kidney and 21.9% was excreted within 2h after intravenous injection.

BACKGROUND:A large number of studies have confirmed that anterior approach and posterior approach for multilevel cervical spondylotic myelopathy were effective, but there is stil no conclusion in which one is better.
OBJECTIVE:To systematical y assess the clinical effectiveness and safety of anterior approach versus posterior approach for multilevel cervical spondylotic myelopathy.
METHODS:The databases such as The Cochrane Library (Issue 3, 2013), PubMed (from 1966 to March 2013), OVID (from 1950 to March 2013), EMbase (from 1966 to March 2013), Chinese Biomedical Literature Database (from 1978 to March 2013), WanFang Database (from 1998 to March 2013), China National Knowledge Infrastructure (from 1999 to March 2013) were electronical y searched and five relevant journals were searched by hand to col ect the randomized control ed trials or non-randomized control ed trials about the clinical effectiveness and safety of anterior approach versus posterior approach for multilevel cervical spondylotic myelopathy. Two reviewers independently screened the literature according to the inclusive and exclusive criteria, extracted the data, and assessed the methodological quality of included studies. Then the meta-analysis was performed by using RevMan5.2 software.
RESULTS AND CONCLUSION:A total of 11 control ed trials involving 814 patients were included. Meta-analysis results showed that, compared with posterior approach, postoperative Japanese Orthopaedic Association scores were better (P<0.000 01), improvement rate of neurological function was higher (P=0.000 3), the incidence of C5 root palsy was lower (P=0.007), but operation time was longer (P<0.000 01), amount of intraoperative bleedin g was larger (P=0.000 7), incidence of adjacent segments degeneration was higher (P=0.01), incidence of postoperative complications was higher (P<0.000 01) and the rate of secondary surgical procedures was higher (P=0.003) after anterior approach. Additional y, there were no differences between the two groups in the cervical range of motion (P=0.56). For quantity limitation and low methodological quality of included studies, this conclusion stil needs to be further proved by performing more high-quality and large-scale randomized control ed trials.

Objective To evaluate the consistence in the detection of antibodies against HIV-1 between a new rapid test using oral mucosal transudate (OMT) samples and ELISA using serum samples. Methods Two-hundred patients who were positive for anti-HIV-1 antibodies by serum ELISA and confirmed by Western blot to be infected with HIV, and 600 healthy human controls negative for anti-HIV-1 antibodies by serum ELISA, were eligible for this study. OMT samples were collected from these subjects and subjected to a rapid test for anti-HIV-1 antibodies. The factors influencing the performance of the rapid test were analyzed. Results Of the 200 OMT specimens from HIV-infected patients, 198 showed positive reaction, 2 showed negative reaction. Among the 198 positive reactions, 192 (96%) were "clear" and easy to make decisions, 4 (2%) were "faint", 2(1%) were "very faint" and required professionals to make decisions. The rapid test was negative in all the 600 OMT specimens from the control group. Conclusions The consistence in the detection of anti-HIV-1 antibodies between the OMT rapid test and serum ELISA was 99% in HIV-positive specimens, 100% in HIV-negative specimens, and 99.75% in all the specimens.

Objective To investigate the value of serological screening combined with fetal aneuploidy prenatal noninvasive DNA test ( NIPT) in prenatal diagnosis ,and provide guidance for reducing the birth of children with genetic defects in the future .Methods A retrospective analysis was conducted in 15282 pregnant women with prenatal counseling who performed serological screening and NIPT test .The high risk and critical TANG recommended NIPT test and severe abnormal karyotype children recommend termination of pregnancy .Results Down syndrome screening results showed that 804 cases of 15,282 cases of serological screening samples were detected in high risk , the high risk rate was 5.26％.A total of 804 patients with high risk of Don screen were further tested with noninvasive DNA,which was positive in 10 cases.Among them,8 cases were confirmed by amniocentesis ,including 5 cases of trisomy 21,1 case of trisomy 18 and 2 cases of sex chromosome abnormality (45,XO in one case and 47,XYY in one case),the consistency was 100.00％.Conclusion Noninvasive gene detection of fetal aneuploidy has the advantages of noninvasive ,safe and accurate .It has a wide range of clinical value in the diagnosis of fetal chromosomal abnormalities .

Objective Network Meta-analysis was conducted to evaluate the differences in the efficacy of different traditional Chinese medicine injections(TCMI)in patients with cancer-related fatigue.Methods The database was systematically searched and included in Cochrane Library,PubMed,Web of Science,CNKI,Wan Fang,China Biomedical Literature Database and Database of Chinese sci-tech periodicals until September,2022.These relevant randomized controlled trial literatures were evaluated the methodological quality by using of Cochrane risk of bias assessment tool.Results 18 articles involving 1404 patients and 6 traditional Chinese medicine injections(TCMI)were included.The results showed that Kangai injection[MD=-2.30,95％CI(-3.09,-1.52)]and Aidi injection[MD=-1.31,95％CI(-1.99,-0.62)]combined with chemotherapy were better than chemotherapy alone in improving CRF in cancer patients during chemotherapy,among which Kangai injection is more effective[MD=-1.05,95％CI(-1.89,-0.21)];Shenmai injection[MD=-1.24,95％CI(-1.91,-0.57)],Kangai injection[MD=-1.02,95％CI(-1.65,-0.39)],and Shenqifuzheng injection[MD=-0.54,95％CI(-0.90,-0.19)]were superior to palliative care alone in improving CRF in palliative care of cancer patients,among which Shenmai injection[MD=-1.26,95％CI(-2.15,-0.37)]is more effective.Conclusions The results demonstrated that TCMI can improve the degree of cancer-related fatigue in tumor patients at different stages.When combined with chemotherapy,Kangai injection was superior to other TCMI,while when combined with palliative treatment,Shenmai injection was superior to other TCMI.