Objective　To analysis the relationship between the multipathogens infection and unhealthy pregnancy.Methods　All patients was selectively divided into three groups:group A including 106 patients with unhealthy pregnancy,group B:55 gravidas with normal induced abortion,group C:55 normal parturient with term labor.The ten kinds of pathogens from abortion tissues and placentas were tested by PCR method respectively.Anti-pathogen IgM antibodies were detected by ELISA in the blood specimens.Results　The distribution status of the pathogens were as followed:Human parvovirus B19(B19V 23.6%)＞Cytomegalovirus(CMV,16.0%)＞Toxoplasma (TOX，15.1%)＞Rubella virus(RV，10.4%)＞Ureaplasma urealyticum(9.4%)＞Coxsackie(7.5%)＞Herpes simplex virus(HSV,6.6%)＞Adenovirus,Eprstan Barr virus(3.8%)＞Chlamydia trachomatic(CT 2.8%) in the group A.The positive rates of the pathogens infection in both group C and group B were lower.The positive rates of B19V,CMV,RV,HSV,TOX were significant difference(χ2 test,P＝0.000～P＝0.031) among the three groups,hovever others were not(χ2 test,P＝0.121～P＝0.724).Conclusions　The pathogen infection is an important factor to occur the unhealthy pregnancy,the major pathogens of unhealthy pregnancy are B19V，CMV，TOX，RV，HSV.These pathogens infection should be detected timely in gestational period.

Chlamydia trachomatic(CT 2 8%) in the group A.The positive rates of the pathogens infection in both group C and group B were lower.The positive rates of B 19 V,CMV,RV,HSV,TOX were significant difference(? 2 test,P=0 000～P=0 031) among the three groups,hovever others were not(? 2 test,P=0 121～P=0 724).Conclusions The pathogen infection is an important factor to occur the unhealthy pregnancy,the major pathogens of unhealthy pregnancy are B 19 V,CMV,TOX,RV,HSV.These pathogens infection should be detected timely in gestational period.

Antibody-drug conjugate (ADC) has become an effective method for treating various diseases, especially cancer, due to its clear target and good selectivity in clinical practice. However, the monoclonal antibodies in traditional ADC have poor tissue permeability, high modification costs, pose risks such as immunogenicity and immunotoxicity. The nanobody (Nb) which is extracted from the blood of camel animals, is the smallest antibody fragment known to have complete antigen binding ability. It has advantages such as strong tissue permeability, strong specificity, low immunogenicity, and high stability, and can replace traditional monoclonal antibodies to participate in the construction of nanobody-drug conjugate (NDC). This article reviews and discusses the advantages of Nb structure, the construction and application of NDC in the hope of providing ideas for the research and development of NDC.

OBJECTIVETo discuss the TCM pattern classification and measurable diagnosis criterion of the protracted symptoms of heroin-addiction abstinence (PSHAA).

METHODSThrough literature review and clinical study, the concept of TCM patterns and diagnostic standard were established, and a TCM pattern scale for quantitatively analysis of PSHAA was formulated. The scale were used on the clinical investigation on the abuser for 5 times on day 15, 30, 60, 90 and 120 after abstinence. Then the TCM patterns of PSHAA was classified using methods of DME and quantitative diagnosis, to create a corresponding scale of diagnostic indexes referring maximum likelihood method.

RESULTS(1) The TCM patterns of PSHAA commonly seen were Toxin-stasis accumulation (TSA) with Qi-blood insufficiency, TSA with Qi-yin deficiency, TSA with Yin-deficiency and Fire-excess and TSA with Yin-Yang deficiency. (2) The retrospective and prospective verification of the scale of diagnostic indexes showed it has high sensitivity and speciality, with low rates of misdiagnosis and of missed diagnosis.

CONCLUSIONIt is feasible to develop measurable diagnosis on the TCM patterns of PASAA using DME method and measurable diagnostic methods. The scale of diagnostic indexes formulated with the maximum likelihood method of quantified diagnosis has a certain clinical practicability.

Adult ; Diagnosis, Differential ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Heroin Dependence ; diagnosis ; drug therapy ; Humans ; Male ; Medicine, Chinese Traditional ; Phytotherapy ; Reference Standards

To develop and validate a novel 6-dye STR(short tandem repeat) 25-plex DNA typing system for forensic DNA profiling and databases. In this study, a novel STR 25-plex DNA typing system that includes 24 autosomal STRs (D1S1656, D2S1338, D2S441, D3S1358, D5S818, D6S1043, D7S820, D8S1179, D10S1248, D12S391, D13S317, D16S539, D18S51, D19S433, D21S11, D22S1045, CSF1PO, FGA, Penta D, Penta E, TH01, TPOX, vWA, D11S4463) and Amelogenin was developed. Validation studies demonstrated the sensitivity, accuracy, and reproducibility of our novel STR 25-plex DNA typing system. The sensitivity of the STR 25-plex DNA typing system was demonstrated by the ability to obtain complete profiles from as little as 0.125ng of human DNA. Specificity testing was demonstrated by the lack of cross-reactivity to a variety of commonly encountered animal species and microbial pool. For stability testing, full profiles were obtained with humic acid concentration ≤60ng/μL and hematin ≤600μM. For forensic evaluation, the selected 24 autosomal STRs followed the Hardy–Weinberg equilibrium. Since 24 autosomal STRs were independent from one another, PM (Probability matching) was 3.5434×10-28, TDP (Total Probability of Discrimination Power) was 0.999999999999999999999999969863, and CEP (Cumulative probability of exclusion) was 0.99999999375. The new STR 25-plex typing system is sensitive, reproducible, and stable, therefore it is highly applicable for use in national DNA database and can help to facilitate international data sharing.

Objective To investigate the possible role of plasma leptin and total cholesterol in the pathophysiology of attempted suicide in depressive episode patients. Methods The subjects were 25 depressive episode patients who had recently attempted suicide and 30 depressive episode patients without suicide attempt. The Hamilton Depression Rating Scale-24 items ( HAMD24 ), Beck Helpless Rating Scale (BHS) and Self-rating Idea of Suicide Scale (SIOSS) were used to evaluate the severity of symptoms. In addition, 32 individuals who took part in health examination were selected as health control group. Body height and weight were measured to get body mass index (BMI) of all objects, and plasma leptin and total cholesterol were measured by venous blood before taking pill. Results (1)HAMD score , BHS score and SIOSS score in patients with attempted suicide were higher than patients without suicide (P ＜ 0.01 ). (2) The total cholesterol and plasma leptin in patients with attempted suicide ( (3.3 ±0.9)mmol/L, (6.1 ±3.7)μg/L)were lower than that in patients without suicide( (3.6± 1.2)mmol/L, (9.4 ± 4.4)μg/L; P ＜ 0.05 ～ 0. 0l ), while total cholesterol and leptin in patients without suicide attempt ( (3.6 ± 1.2 ) mmol/L, ( 9.4 ± 4.4 ) μg/L) were lower than that in normal controls ( ( 4.8 ± 0.9 )mmol/L, ( 13.4 ± 6.7 ) μg/L; P ＜ 0.05 ～ 0.01 ). (3) Plasma leptin and total cholesterol of all patients were positively correlated with BMI(P＜0.01 ). Moreover, plasma leptin and total cholesterol in patients with attempted suicide and patients without attempted suicide were inversely positively correlated with HAMD score , BHS score and SIOSS score. Plasma leptin was significantly positively correlated with total cholesterol in patients with attempted suicide and patients without suicide, but there was no significant difference in normal controls(P＞ 0. 05). Conclusion The results suggest that decreased plasma leptin is related to the pathophysiology of attempted suicide in depressive episode patients.

A system coupling ethanol fermentation with microalgae culture was developed, in which CO2 produced during ethanol fermentation was used as carbon source for the growth of Tetraselmis subcordiformis, a microalgae accumulating starch intracellularly. The biomass concentration about 2.0 g DCW/L was achieved within the photobioreactor for the batch culture of 7 days, and intracellular starch accumulation was about 45%. Furthermore, ultrasonic pretreatment and enzymatic hydrolysis were applied to the microalgae biomass, and 71.1% of the intracellular starch was converted into glucose that was fermented sequentially to ethanol by Saccharomyces cerevisiae with an ethanol yield of 87.6% of the theoretical value, indicating that the microalgae biomass could be an alternative feedstock for ethanol production to save grain consumption, and in the meantime mitigate the CO2 emission.
Batch Cell Culture Techniques ; Carbon Dioxide ; metabolism ; pharmacology ; Cells, Cultured ; Ethanol ; metabolism ; Fermentation ; Microalgae ; drug effects ; growth & development ; metabolism ; Photobioreactors ; Saccharomyces cerevisiae ; metabolism ; Starch ; metabolism

Objective To optimize the design of the field psychological emergency rescue chest.Methods The deficiencies of the chest were summarized during the drilling and actual application of the psychological rescue unit,and some optimization countermeasures were put forward accordingly.Results The chest was optimized from the aspects of selection of chest body, internal and external layout as well as equipped devices.Conclusion The optimized chest can better meet the needs of the disaster emergency rescue.

To study the effects of surfactants on wettability of excipients, the contact angles of six types of surfactants on the surface of two common excipients and mixture of three surfactants with excipients were measured using hypsometry method. The results demonstrated that contact angle of water on the surface of excipients was associated with hydrophilcity of excipients. Contact angle was lowered with increase in hydrophilic groups of excipient molecules. The sequence of contact angle from small to large was starch < sodium benzoate < polyvinylpyrrolidone < sodium carboxymethylcellulose < sodium alginate < chitosan < hydroxypropyl methyl cellulose Chemistry, Pharmaceutical ; Excipients ; chemistry ; Hydrophobic and Hydrophilic Interactions ; Surface-Active Agents ; chemistry ; Tablets ; Water ; Wettability

Objective To study the sensitivity and specificity of a double monoclonal antibody sandwich enzyme-linked immunosorbent assay (DMcAbS-ELISA)for the detection of F1 antigen of Yersinia pestis (Y.pestis).Methods Viscera (viz.liver and spleen)specimens of infected mice with virulent Y.pestis and negative control mice were detected by bacteriological test,DMcAbS-ELISA and reverse indirect hemagglutination assay (RIHA) for the F1 antigen.Results The 225 control specimens were all negative tested by plague bacteriology testing,DMcAbS-ELISA and RIHA.A total of 308 plague-infected mouse organ specimens were tested,and the positive detection rate was 92.21％ (284/308),90.91％(280/308) and 89.61％ (276/308),respectively,with germiculture,DMcAbS-ELISA and RIHA,and the difference was not statistically significant(x2=5.65,P＞0.05).The coincidence rate of DMcAbS-ELISA and bacterial culture was 97.00％[(274+243)/533],Kappa =0.940;RIHA in line with the rate was 99.25％[(276+253)/533],Kappa =0.985.Authenticity comparison of F1 antigen detection in viscera specimens:sensitivity,specificity,positive predictive value,negative predictive value,adjusted agreement and Youden's index was 96.48％(274/284),97.59％(243/249),97.86％ (274/280),96.05 ％(243/253),96.99％[1/4×(274/280+274/284+243/253+243/249)]and 0.9407,respectively,for DMcAbS-ELISA and 96.13％(273/284),98.80％(246/249),98.91％(273/276),95.72％(246/257),97.39％[1/4×(273/276+273/284+246/257±246/249)]and 0.9492,respectively,for RIHA.The detection sensitivity of DMcAbS-ELISA and RIHA was 2.7×104 cfu/ml and 2.2×105 cfu/ml,for Y.pestis,respectively,and was 10 μg/L for F1 antigen.Conclusions DMcAbS-ELISA assay is a sensitive,specific,simple and fast method for detection of the F1 antigen,and it has a potential application value in rapid diagnosis of plague.