The complement component 4 binding protein alpha(C4BPA)gene is the alpha chain of complement binding protein 4.As a plasma protein involved in the complement and coagulation systems,it can influence immune responses and lipid metabolism.In order to study the polymor-phism of C4BPA gene and its correlation with milk quality traits in Chinese Holstein cows,genom-ic DNA was extracted from blood samples of 92 Chinese Holstein cows,and the target fragment of C4BPA gene was amplified by PCR,and the association analysis was performed by using direct se-quencing to obtain the SNP loci and milk quality traits.The results showed that among the four SNPs found at the third intron of the C4BPA gene,I3-11 G＞A was highly significantly correlated with milk protein and urea nitrogen(P＜0.05),I3-291 T＞G was significantly correlated with lac-tose(P＜0.05),I3-374 C＞T was highly significantly correlated with lactose and urea nitrogen(P＜0.05),and I3-375 T＞G was highly significantly correlated with lactose(P＜0.05),milk pro-tein and urea nitrogen.The chi-square test values for each point indicated that the population was in genetic equilibrium.Individuals of haplotype combination H1 H1 had the highest lactose content,and haplotype combination H1H2 can be used as the best haplotype combination in the molecular selection work of dairy cows.

Objective To explore the clinical value of inflammatory prognostic index combined with dual-source CT perfusion imaging in predicting early response of hepatocellular carcinoma(HCC)after transcatheter hepatic artery chemoembolization(TACE).Methods A total of 25 patients with HCC,who met the inclusion criteria and received initial TACE at the First Affiliated Hospital of Dali University of China from November 2022 to November 2023,were prospectively collected.CT perfusion scan was performed before TACE as well as in 30-40 days after TACE,and blood routine and blood biochemical data were collected.The modified Response Evaluation Criteria in Solid Tumors(mRECIST)was used to evaluate postoperative enhanced CT manifestations.Patients obtaining complete remission(CR)or partial remission(PR)were classified as effective group(n=14),and patients obtaining stable disease(SD)or progression disease(PD)were classified as ineffective group(n=11).The differences in CT perfusion imaging parameters and inflammatory parameters between the two groups were analyzed,and the predictive values of preoperative CT perfusion imaging parameters and inflammatory parameters for postoperative early response of HCC were evaluated.The cutoff value was taken at the maximum Youden index.Univariate analysis and multivariate analysis were used to analyze the effect of CT perfusion imaging parameters,inflammatory parameters and clinical features on the prognosis.The nomogram prediction model was constructed by using R software.Results The post-TACE arterial liver perfusion(ALP),hepatic perfusion index(HPI),blood flow(BF)and blood volume(BV)were significantly lower than their pre-TACE values(all P＜0.05).Afer TACE portal vein perfusion(PVP)was obviously higher than that before operation(P＜0.05).No statistically significant differences in the mean transit time(MTT),flow extraction product(FED),C-reactive protein(CRP),albumin(ALB),neutrophil/lymphocyte ratio(NLR)and inflammatory prognosis index(IPI)existed between the pre-TACE values and post-TACE values(all P＞0.05).The pre-TACE ALP,BF and FED in the effective group were significantly higher than those in the ineffective group,while the pre-TACE CRP and IPI in the effective group were remarkably lower than those in the ineffective group(P＜0.05).There were no statistically significant differences in pre-TACE PVP,HPI,MTT,BV,ALB and NLR between the effective group and the ineffective group before(all P＞0.05).In the effective group,the pre-TACE ALP,HPI,BF,BV and FED were obviously higher than their post-TACE values(all P＜0.05)preoperative PVP was significantly lower than postoperation(P＜0.05),while no statistically significant differences in MTT,CRP,ALB,NLR and IPI existed between the pre-TACE values and the post-TACE values(all P＞0.05).In the ineffective group,the pre-TACE HPI was prominently higher than the post-TACE value(P＜0.05),while no statistically significant differences in ALP,PVP,BF,BV,MTT,FED,ALB,CRP,NLR and IPI existed between the pre-TACE values and the post-TACE values(all P＞0.05).The pre-TACE ALP,BF,BV,FED,CRP and IPI had high predictive values in judging early response of HCC after TACE(all P＜0.05),the AUC values were 0.831,0.779,0.740,0.753,0.779 and 0.805 respectively,and the optimal cutoffs were 33.280 mL/100 mL min,61.860 mL/100 mL min,5.885 mL/100 mL,29.725 mL/100 mL min,30.465 mg/L,1.885 respectively.ALP combined with CRP had the highest predictive value for post-TACE early response of HCC,with an AUC of 0.968(95％CI:0.906-1.000,P＜0.05),ALP combined with IPI could significantly improve the predictive value,with an AUC of 0.961(95％CI:0.894-1.000,P＜0.05),with the sensitivity and specificity being 0.929 and 0.909 respectively.Multivariate analysis showed that pre-TACE ALP and CRP were the independent influencing factors for post-TACE early response of HCC(P＜0.05).The nomogram prediction model constructed based on the pre-TACE ALP and CRP could effectively predict the post-TACE early response of HCC,and the AUC value was 0.968(95％CI:0.908-1.000).Conclusion ALP and CRP can be used to predict the post-TACE early response of HCC,and the combination use of ALP and CRP can significantly improve the predictive value.

The complement component 4 binding protein alpha(C4BPA)gene is the alpha chain of complement binding protein 4.As a plasma protein involved in the complement and coagulation systems,it can influence immune responses and lipid metabolism.In order to study the polymor-phism of C4BPA gene and its correlation with milk quality traits in Chinese Holstein cows,genom-ic DNA was extracted from blood samples of 92 Chinese Holstein cows,and the target fragment of C4BPA gene was amplified by PCR,and the association analysis was performed by using direct se-quencing to obtain the SNP loci and milk quality traits.The results showed that among the four SNPs found at the third intron of the C4BPA gene,I3-11 G＞A was highly significantly correlated with milk protein and urea nitrogen(P＜0.05),I3-291 T＞G was significantly correlated with lac-tose(P＜0.05),I3-374 C＞T was highly significantly correlated with lactose and urea nitrogen(P＜0.05),and I3-375 T＞G was highly significantly correlated with lactose(P＜0.05),milk pro-tein and urea nitrogen.The chi-square test values for each point indicated that the population was in genetic equilibrium.Individuals of haplotype combination H1 H1 had the highest lactose content,and haplotype combination H1H2 can be used as the best haplotype combination in the molecular selection work of dairy cows.

Objective To explore the value of radiomics in differential diagnosis of small cell lung cancer(SCLC)and non-small cell lung cancer(NSCLC).Methods Literature on the differential diagnosis of SCLC and NSCLC using radiomics was searched in Chinese and English databases.After literature screening and data extraction,Meta-DiSc1.4 and State16.0 SE software were used for analysis.Results A total of 910 patients were included in 8 studies.Meta-analysis results showed that the radiomics differential diag-nosis of SCLC and NSCLC had high co-sensitivity(Sen)and specificity(Spe),0.87[95%confidence interval(CI)0.83-0.91]and 0.88(95%CI 0.85-0.90),respectively.Meta-regression analysis showed that heterogeneity was not caused by feature extraction software type,joint machine learning,image pattern,brain metastasis,and sample size.Publication bias results didn't show any sig-nificant publication bias.Conclusion The radiomics method can differentiate and diagnose SCLC from NSCLC more accurately.When Matlab software is used to extract MRI image features combined with machine learning,and the sample size is large enough,the radiomics can differentiate and diagnose SCLC from NSCLC more accurately.

Humans ; COVID-19/genetics* ; SARS-CoV-2/genetics* ; Clustered Regularly Interspaced Short Palindromic Repeats/genetics* ; CRISPR-Cas Systems/genetics* ; RNA, Viral/genetics*

OBJECTIVE：To preliminarily study the antitumor mechanism of Periplaneta americana extract C Ⅱ-3 on MFC tumor-bearing mice. METHODS ：Balb/c mice were randomly divided into model group （normal saline 20 mL/kg）and C Ⅱ-3 group （200 mg/kg），with 6 mice in each group. MFC cell suspension （0.2 mL）was injected under the right armpit of mice. On the next day，mice were given relevant medicine intragastrically ，once a day ，for consecutive 10 d. 24 h after the last administration ，Based on the measurement of tumor size ， 1H-NMR technology combined with unsupervised PCA ，supervised PLS-DA and OPLS-DA were used to compare metabolic spectrum of liver tissue from tumor-bearing mice of 2 groups，to analyze differential metabolites and to explore the potential antitumor mechanis m of C Ⅱ -3. RESULTS ：Compared with model group ，the tumor body was significantly reduced in tumor-bearing mice of C Ⅱ-3 group. There were differences in 1H-NMR spectra between the 2 No.81960712）； groups. According to unsupervised PCA ，supervised PLS-DA and OPLS-DA ，totally six potential differential metabolites ，as glycogen （increased），pyruvate （decreased），arginine （de- creased），hydroxyproline （increased），inosine （increased） and niacinamide （increased），were identified in the liver tissue，which were mainly attributed to the metabolism of arginine ，energy and nucleic acid. CONCLUSIONS：The anti tumor effect of C Ⅱ-3 may be related to the regulation of arginine metabolism ，energy metabolism and nucleic acid metabolism.

Objective To investigate the clinical application and effect of autogenous costal car-tilage in rhinoplasty repair surgery .Methods From July 2015 to June 2018 ,112 cosmetic patients were treated with costal cartilage nasal tip prosthesis in the Department of Cosmetic Surgery ,Shang-hai Yixing Medical and Beauty Hospital .By using the straight part of the ribs ,the nasal columella was made with mortise groove and then septal expanded graft prepared by using two pieces of expanded grafts .The cap-like ,shield-like cartilage and perichondrium were combined for completing nasal tip prosthesis .Results A total of 112 patients were treated after rhinoplasty repair surgery .After 6-24 months of follow-up ,100 (accounting for 89 .3％ ) cosmetic seekers were satisfied with the shape of the nasal tip ,5 (accounting for 4 .5％ ) of those patients were not being satisfied due to unexpected na-sal tip point ,3 (accounting for 2 .7％ ) surgical infection cases after rhinoplasty and underwent pros-thesis removal ,2 (accounting for 1 .8％ ) had slight deviation of nasal tip and 2 had partial necrosis of nasal septum mucosa .No pneumothorax or chest wall deformities were found .Conclusions Rib carti-lage is an excellent material for nasal tip formation in rhinoplasty .The use of autogenous costal carti-lage to repair aesthetic defects in the lower nose can achieve a more effective ,safe and lasting effect .

Objective To observe and discuss the application and clinical effect of different forms of ear cartilage in nasal tip plasty.Methods Auricular cartilage was used to prune it as "halberd" shape at first,and then the extended transplantation and the cartilage fornix reconstruction were carried out by using single or combined septum cartilage.Meanwhile,nasal tip plasty was performed by using "cap shape" or "shield shape" cartilage grafting.Results 136 patients were followed up for 6 to 24 months after operation.119 cases were satisfied,accounting for 87.5％,of which 11 cases (ear cartilage weakness) were not improved obviously,accounting for 8％.However,there were only 6 cases with the unsatisfactory feedback as the nasal tip that was decreased by 1～2 mm one year after the operation,accounting for 4.41％.Conclusions The auricular cartilage is pruned as "halberd" shape singly or combined with septal cartilage as an extended graft,reconstructing the cartilage fornix in the meantime,which is the way better than the traditional way of making nasal tip plasty to obtain the ideal nasal tip protrusion.

Objective:To evaluate the protective immunity by vaccination of BALB/c mice with rLV-HA-GCN4,a recombinant lentivirus expressing the trimeric HA of swine H1N1 influenza virus. Methods:The female mice were randomly divided into rLV-HA-GCN4,rLV-HA,LV and PBS groups. Mice were primed with plasmid and boosted with lentivirus by the administration of intramuscular thigh injections at an interval of two weeks. At day 28 post-prime immunization,mice were inoculated intranasally with 100TCID50 of swine H1N1 influenza virus in a 50 μl volume. The immune levels were assessed by the T lymphocyte transformation test, flow cytometry,indirect ELISA and the indexes of spleen and lung. Results:The spleen lymphocyte transformation rate was 0. 3±0. 11 in the rLV-HA-GCN4 group at day 14 post-boost immunization, showing a statistical significance ( P<0. 01 ) compared to the PBS group. Meanwhile,rLV-HA-GCN4 could cause T lymphocyte response mainly based on the Th1-type CD4+ T cells. The IgG antibody titer reached to 1:8 000 at day 14 post-boost immunization and approximately 1:7 000 at day 14 post challenge. After challenge,the spleen and lung indexes of rLV-HA-GCN4 group were significantly lower than those of PBS group (P<0. 05). The body weight of rLV-HA-GCN4 group demonstrated a slight decrease before 3 days post challenge and then a gradual increase compared to the LV and PBS groups (P<0. 05). Conclusion:rLV-HA-GCN4 can effectively induce cellular and humoral immune response in BALB/c mice against swine H1N1 influenza virus.

objective To evaluate the clinical effect of touqing capsule associated with Fengchi on the vertebral artery type of cervical spondylosis(CSA)in the attack stage.Methods A total of 100 patients with CSA, according to the doctor order, were randomly divided into a control group and a treatment group respectively, with 50 patients in each. The control group was treated with acupuncture therapy, the treatment group was additionally treated with Touqingcapsule on the basis of the control group, and both groups were treated for 20 days. The hemodynamics was detected by transcranial doppler, the change of TCM syndrome integral was observed before and after the treatment, and the clinical efficacy was evaluated.Results After treatment, the treatment group dizziness (1.10 ± 0.33 vs. 2.01 ± 0.26,t=14.909), neck shoulder ache (0.87 ± 0.16 vs. 1.92 ± 0.69,t=10.266), numbness (0.95 ± 0.14)vs. 1.87 ± 0.16,t=29.844), the total integral (2.16 ± 0.75 vs.3.89 ± 1.14,t=8.756) integral were significantly lower than the control group(P<0.01).Treatment group RVA (40.03 ± 5.89 cm/svs. 34.26 ± 6.26 cm/s,t=4.628), the LVA (42.14 ± 5.42 cm/svs.33.89 ± 6.08 cm/s,t=6.985) rise and PI (0.79 ± 0.14 vs.1.04 ± 0.19,t=7.312) reduction were significantly better than those of the control group (P<0.01). The total effective rate in the treatment group was significantly better than the control group (91.7%(44/48)vs. 74.5%(35/47),χ2=3.863, P=3.863).Conclusion Touqing Capsule associated with Fengchi is effective for CSA. Its functional mechanism is correlated with improvement of haemodynamics of vertebral-basilar artery of the CSA patients.