Objective To investigate the killer cell immunoglobulin-like receptor (KIR) genes, KIR2DS4 and its variant KIR1D for an association with syphilis in the comparison between syphilis patients and unrelated healthy subjects. Methods One hundred and ninety syphilis patients and 192 unrelated healthy subjects were performed to determine the KIR genotypes by PCR-SSP method. The gene frequencies of KIR2DS4 and KIR1D were analyzed for an association with syphilis in the patients and healthy people who belonged to KIR gene haplotype A. Results Of 192 healthy individuals, 187 were identified with a KIR2DS4 gene. And 91 individuals were classified as homozygous haplotype A with the percent of 48.7% (91/187) in 187 KIR2DS4 positive individuals. Of 190 syphilis patients, 181 were identified with a KIR2DS4 gene. And 89 individuals were classified as homozygous haplotype A with the percent of 49.2% (89/181) in 181 KIR2DS4 positive individuals. The frequency of KIR1D/KIR1D in syphilis patients classified as haplotype A was 16.9%, and was significantly higher than that in the control group (6.6%, P=0.032). However, there was no significant difference for the frequencies of KIR2DS4/KIR2DS4 and KIR2DS4/KIR1D between the two groups (P>0.05). Conclusion KIR1D/KIR1D might be associated with syphilis in the comparison between syphilis patients and unrelated healthy controls who were classified as homozygous haplotype A.

Objective To observe the normal configuration and size of the third ventricle in the second and third trimester fetuses in a normal population by ultrasonography. Methods The third ventricular width and configuration were obtained by antenatal ultrasonography in 765 fetuses with gestational age between 27 weeks and term.The relationship Between the width and the gestational age was analyzed.Results The third ventricle width 0～3 mm and showed the increased tendency; the correlation coefficient ( r ) between the width of the third ventricle and the gestationl week was 0.473 ( P＜0.01).The third ventricle was seen as a single echogenic line in 8(4.8%) of 165 fetuses, 145(61.5%) of all fetuses had parallel echogenic lines outlining a fluid-filled lumen, the V-shaped configuration of the third ventricle was seen in 12(7.3%) of the fetuses.Conclusions The third ventricle width shows the increased tendency in the second and third trimester.The parallel echogenic line becomes the prominent ultrasonography appearance in the second and third trimester fetuses.It's usefull to observe the normal ultrasonic apperance of the third ventricle in diagnosing the fetal central nervous abnormities.

Objective To analyze the distribution of HLA-C alleles in Shandong Han population of China.Methods One hundred and fifty unrelated potential donors,self-claimed as Han population from Shandong province,were selected from China Marrow Donor Program.Genotypes of HLA-C with the donors were identified by PCR-SBT.The frequencies of allele were calculated with direct counting method and the differences with other populations were analyzed with SPSS16.0 x2 software.Results A total of 25 alleles of HLA-C were observed and the most common alleles were C * 06:02 and C * 07:02 with the frequency of more than 10.00％.Moreover,there were 16 kinds of alleles with the frequency of more than 1.00％ accounting for 95.33％ of the total alleles.The distribution of HLA-C alleles in Shandong Han population was similar to that in northern Han population,but had some differences with that in southern Han population.In addition,the distribution of HLA-C alleles in Shandong Han population significantly differed from that of German/African American.Conclusion This study on the distribution of HLA-C alleles in Shandong Han population provides valuable references for further studies on the genetics of HLA,cross-match for organ transplantation and other genetic-associated diseases in this population.

Objective To obtain Chinese hamster ovary (CHO) cell lines that stably express a targeting complement inhibitor CR2-CD59.Methods The recombinant plasmid PEE14.1-CR2-CD59 was constru-cted by cloning the DNA fragment CR2-CD59 into plasmid PEE14.1,and the obtained plasmid was transfected into CHO cells by FuGENE 6.The clones with stable high expression of target fragment were selected by methionine sulfoximine (MSX),the expression of CR2-CD59 was analyzed by ELISA,SDS-PAGE and Western blotting analysis.Results Several stable expression clones were obtained,and CR2-CD59 was highly expressed in the secret form in CHO cells.SDS-PAGE analysis showed that the molecular weight of the recombined protein CR2-CD59 was consistent with the predicted one.ELISA and Western blotting results revealed that the CR2-CD59 could react with both anti-human CR2 and anti-human CD59 polyclonal antibodies.Compared with serum-containing medium,the protein was highly expressed in serum-free medium (P

Objective To investigate the mechanism of pulmonary inflammation induced by influenza virus , and provide reference for the development of effective drugs for viral pneumonia .Methods An influenza PR8 infection mouse model was established .The levels of inflammatory cytokines and complement molecules were determined using RT -PCR and ELISA.The pathological changes were examined using biopsy .The complement inhibitor cobra venom factor ( CVF) was injected intraperitoneally at a dose of 50 μg/( kg· 24 h) , and then body mass .The survival rate and inflammatory factors were examined .Results Compared with the control group , the expressions of complement regulatory molecule Crry and CD59 were significantly decreased (P<0.01), while those of complement C9 and complement receptor C3aR and C5aR were significantly increased in the lungs of influenza model mice (P<0.01).Pro-inflammatory cytokines TNF-α, IL-6 and IFN-γwere highly expressed , but anti-inflammatory cytokine IL-2 was lowly expressed in serum .Treatment with CVF caused a sight body mass loss, a survival rate increase and a lung index decrease (P <0.05).Moreover, an IL-2 expression increase and a decrease of IL-6, TNF -αand INF-γexpression were observed in CVF treatment mice ( P< 0.05).Conclusion Inhibition of complement activation can increase the survival rate of mice with influenza pneumonia and decrease pulmonary indexes .thus delaying the pathogenesis of PR 8.

Objective To investigate the changes and clinical significance of thyroid function in patients with depression by detecting serum thyroid hormone levels.Methods Totally 127cases of depression in the Department of Psychiatric of our hospital from January 2016to January 2018were collected as research objects.According to the characteristics of depression, patients with unipolar depression were selected as unipolar group (n=45), while patients with bipolar depression were selected as bipolar group (n=82).Meanwhile, 53cases of healthy volunteers underwent physical examination in the same period in our hospital were collected as control group.The serum samples of three groups were collected and the serum levels of thyroid hormones (T3, T4, FT3, FT4, TSH) were detected by chemiluminescence immunoassay.The changes of thyroid function between the three groups were compared and analyzed.Results The proportion of patients with T3and T4decreased in unipolar group were significantly higher than those in bipolar group, and the proportion of patients with T3increased in unipolar group was significantly lower than that in bipolar group, and the proportion of patients with FT4decreased in unipolar group was significantly higher than that in bipolar group;and the proportion of patients with TSH increased and TSH decreased in unipolar group were significantly higher than those in bipolar group, the differences were statistically significant (P＜0.05).The level of FT3in unipolar group was significantly lower than that in bipolar group (P＜0.05), while the level of FT4in unipolar group was significantly lower than that in control group and bipolar group, and the differences were statistically significant (P＜0.05).Conclusion The level of thyroid hormone in patients with different types of depression was different, so the treatment should be distinguished.Psychological treatment should be focused on the unipolar depression patients with hypothyroidism, while attention should be paid to drug treatment for bipolar depression patients with high levels of free thyroid hormone.

OBJECTIVETo confirm 17 rare HLA alleles detected during routine HLA typing and deduce their haplotypes.

METHODSBi-allelic sequence-based typing and Luminex DNA PCR-SSOP assay were applied for the initial or repeat HLA typing, respectively. The rare HLA alleles were confirmed with mono-allelic sequence-based typing. Predicted haplotypes of the rare alleles were inferred based on the frequencies of HLA alleles and haplotypes in Han population.

RESULTSThe authenticity of the total 17 rare HLA alleles was proven, and 18 predicted haplotypes associated with the rare alleles were recognized. A*11:12 and DRB1*13:19 were detected twice among unrelated individuals.

CONCLUSIONStudy of rare HLA alleles and predicted haplotype can provide useful information for donor searching and transplantation, and enrich polymorphisms of HLA in this population.

Alleles ; Asian Continental Ancestry Group ; ethnology ; genetics ; Gene Frequency ; HLA-A Antigens ; genetics ; HLA-B Antigens ; genetics ; HLA-DRB1 Chains ; genetics ; Haplotypes ; Humans

BackgroundThe schizophrenia is majorly treated with drug and through physical therapy. However， both treatments would lead to adverse reactions， which could affect therapy adherence and treatment efficacy. Previous studies have shown that aerobic exercise can help alleviate cognitive function in patients with Alzheimer's disease and depressive disorder. At present， little research has been done on such alleviation in schizophrenia patients. ObjectiveTo explore the effect of aerobic exercise on cognitive function in male patients with chronic schizophrenia， so as to provide references for relevant treatments. MethodsA total of 76 male patients with chronic schizophrenia hospitalized in the Fourth People's Hospital of Wuhu between December 2022 and April 2023 were selected as the study subjects and， in accordance with random number table， divided into study group （n=36） and control group （n=40）. Both groups received conventional drug treatment. On this basis， the study group received a 60-minute aerobic exercise 5 times a week for 8 weeks as intervention. Before and after intervention， assessment of cognitive function was performed by using MATRICS Consensus Cognitive Battery （MCCB） and Stroop Color Word Test （SCWT）. ResultAfter intervention， compared with the control group， the study group spent less time on finishing the Trail Making Test and scored higher in both the spatial span test and maze test （Z=-2.070， -2.306， -2.375， P<0.05）. Repeated measure ANOVA results showed that the time main effect of Hopkins Verbal Learning Test score was statistically significant in the two groups after intervention （F=39.067， P<0.05）. So was the interaction effect between the time and group of the Brief Visuospatial Memory Test and Verbal Fluency Test scores （F=10.092， 9.252， P<0.05）. After intervention， the scores of the Brief Visuospatial Memory Test and Verbal Fluency Test in the study group were higher than those in the control group （t=6.689， 4.249， P<0.05）. As for the study group itself， the scores were higher than those before intervention （t=23.746， 23.842， P<0.05）. After intervention， the numbers of correct reading in color test and word test in the study group were more than those in the control group （Z=-2.358， -2.771， P<0.05）. The interaction effect between the time and group of the reaction time in color test， word test and color word interference test were statistically significant in both groups （F=23.383， 19.888， 19.662， P<0.05）. After intervention， the reaction time in color test and color word interference test of the study group was shorter than those of the control group （t=4.895， 6.163， P<0.05）. As for the study group itself， the reaction time were shorter than before intervention （t=54.318， 42.425， 42.141， P<0.01）. ConclusionAerobic exercise may help alleviate the cognitive problems in male patients with chronic schizophrenia in terms of information processing speed， working memory， reasoning/problem solving ability， word learning and memorizing， visual learning and memorizing， and executive function. ［Funded by Wuhu Science and Technology Plan Project （number， 2021jc2-3）］