This study aimed to investigate the effects of sweet potato leaf extract on production per-formance,systematic and mammary gland oxidative stress status and rumen microbiota of dairy goats fed high concentrate diets.Twenty Guanzhong dairy goats with same parity,similar lactation period(120±15)d and healthy body condition were selected and randomly divided into four groups:low-concentrate(LC),low-concentrate supplemented with 1％sweet potato leaf extract(LCS),high-concentrate(HC)and high-concentrate supplemented with 1％sweet potato leaf ex-tract(HCS).The experimental period was 35 days.The results showed that in the third week,milk yield in the HCS group was significantly higher than that in the LC and LCS groups(P＜0.05).The content of lipopolysaccharide in the rumen fluid of the HC group was significantly higher than that of the other three groups(P＜0.05),the content of malondialdehyde in the serum of the HC group was significantly higher than that of the LCS group(P＜0.05),the content of reactive oxygen species,protein carbonyl,8-hydroxydeoxyguanosine in the milk of the HC group was sig-nificantly higher than that of the LC and LCS groups(P＜0.05),GSH-Px in HCS group was sig-nificantly higher than that in the other three groups(P＜0.05).After the addition of sweet potato leaf extract,there was an increasing trend in the content of Anabaena phylum at the phylum level.In the joint analysis of genera,rumen fluid LPS showed highly significant negative correlation with Succiniclasticum(P＜0.01)and negative correlation with Prevotella(P＜0.05).Valeric acid was negatively correlated with Prevotella(P＜0.05).The pH value was negatively correlated with Treponema(P＜0.05).Butyric acid was positively correlated with Anaeroplasma(P＜0.05).In conclusion,the addition of sweet potato leaf extract to the diet can increase milk production and al-leviate the state of mammary gland oxidative stress,as well as improving rumen microbial diversi-ty of dairy goats.

This study aimed to investigate the effects of sweet potato leaf extract on production per-formance,systematic and mammary gland oxidative stress status and rumen microbiota of dairy goats fed high concentrate diets.Twenty Guanzhong dairy goats with same parity,similar lactation period(120±15)d and healthy body condition were selected and randomly divided into four groups:low-concentrate(LC),low-concentrate supplemented with 1％sweet potato leaf extract(LCS),high-concentrate(HC)and high-concentrate supplemented with 1％sweet potato leaf ex-tract(HCS).The experimental period was 35 days.The results showed that in the third week,milk yield in the HCS group was significantly higher than that in the LC and LCS groups(P＜0.05).The content of lipopolysaccharide in the rumen fluid of the HC group was significantly higher than that of the other three groups(P＜0.05),the content of malondialdehyde in the serum of the HC group was significantly higher than that of the LCS group(P＜0.05),the content of reactive oxygen species,protein carbonyl,8-hydroxydeoxyguanosine in the milk of the HC group was sig-nificantly higher than that of the LC and LCS groups(P＜0.05),GSH-Px in HCS group was sig-nificantly higher than that in the other three groups(P＜0.05).After the addition of sweet potato leaf extract,there was an increasing trend in the content of Anabaena phylum at the phylum level.In the joint analysis of genera,rumen fluid LPS showed highly significant negative correlation with Succiniclasticum(P＜0.01)and negative correlation with Prevotella(P＜0.05).Valeric acid was negatively correlated with Prevotella(P＜0.05).The pH value was negatively correlated with Treponema(P＜0.05).Butyric acid was positively correlated with Anaeroplasma(P＜0.05).In conclusion,the addition of sweet potato leaf extract to the diet can increase milk production and al-leviate the state of mammary gland oxidative stress,as well as improving rumen microbial diversi-ty of dairy goats.

Objective To investigate the protective effect of herba artemisiae scopariae extract on multidrug resistance protein 3(MDR3)gene mutation-induced neonatal parenteral nutrition-associated cholestasis(PNAC)and its possible mechanism.Methods ①Human primary hepatocytes were treated with cell culture in vitro,CRISPR/Cas9 lentivirus infection and MDR3 mutant gene lead-in.The levels of hepatic and biliary biochemical indexes[alanine transaminase(ALT),aspartate transaminase(AST),total bilirubin(TBil),direct bilirubin(DBil),indirect bilirubin(IBil),total bile acid(TBA)]in the supernatant of hepatocytes before and after 16,32,48 hours were compared to determine the time required for fatty acid induction of PNAC hepatocyte model with MDR3 gene mutation.② Human primary hepatocytes were divided into blank control group,MDR3 gene wild type group,MDR3 gene mutation group,and herba artemisiae scopariae extract intervention group according to random number table method.The blank control group was treated with culture medium only,the MDR3 gene wild type group was infected with lentivirus and mixed with wild type MDR3 gene and culture medium,the MDR3 gene mutation group was infected with lentivirus and cultured in culture medium with the mutant genes lead-in of LV-MDR3KI(c.485T>A,c.2793insA,c.1031G>A,c.3347G>A)mutation,while the MDR3 mutant gene was lead-in by lentivirus infection and cultured in culture medium,and then pretreated with 100 g/L herba artemisiae scopariae extract in the herba artemisiae scopariae extract intervention group,then the four groups of hepatocytes were induced with 1%fat emulsion,and the treatment time was the time needed to construct the PNAC hepatocytes model with MDR3 gene mutation.The levels of ALT,AST,TBil,DBil,IBil and TBA in the supernatant of hepatocytes were measured by enzyme-linked immunosorbent assay(ELISA).The mRNA expression abundance of adenosine triphosphate binding cassette proteins(ABCB4,ABCB11,ABCC2,ABCC3,ABCC4)encoding MDR3,bile salt export pump(BSEP),multidrug resistance associated protein(MRP)2-4,and tumor necrosis factor-α(TNF-α)genes were detected by real-time fluorescence quantitative polymerase chain reaction(RT-qPCR).Results Compared to the blank control group and MDR3 gene wild type group,there was no significant difference in the levels of ALT,AST,TBil,DBil,IBil,TBA in the supernatant of MDR3 gene mutant group before and 16 hours after induction with 1%fat emulsion,however after treated with 1%fat emulsion for 32 hours and 48 hours,the levels of ALT,AST,TBil,DBil,IBil,TBA in the supernatant of MDR3 mutant hepatocytes were significantly increased(P<0.05),consequently the time required for fatty acid induction of PNAC hepatocyte model was 32 hours.At 32 hours after treatment with fat emulsion,the levels of ALT,AST,TBil,DBil,TBA in the supernatant of hepatocytes in the herba artemisiae scopariae extract intervention group were significantly decreased[ALT(ng/L):148.3±2.3 vs.164.9±7.0,AST(ng/L):2767.4±78.8 vs.3239.4±107.1,TBil(μmol/L):7.6±0.2 vs.13.6±0.3,DBil(μmol/L):1.8±0.1 vs.5.7±0.2,TBA(μmol/L):3.4±0.2 vs.6.7±0.1,all P<0.05].The ABCB4,ABCC2,ABCC3,ABCC4 mRNA expression of MDR3,MRP2,MRP3,MRP4 in the blank control group,MDR3 wild type group,MDR3 gene mutation group and the herba artemisiae scopariae extract intervention group had no significant difference.The expression of TNF gene mRNA was highly expressed in MDR3 gene mutation group(2-??Ct:1.258±0.200 vs.1.001±0.052),and was low expressed in the herba artemisiae scopariae extract intervention group(2-??Ct:0.387±0.247 vs.1.258±0.200),and there was a significant difference between the two groups(both P<0.05).Compared to the MDR3 gene mutation group,the ABCB11 gene encoding BSEP mRNA expression in the herba artemisiae scopariae extract intervention group was significantly increased(2-??Ct:2.955±0.479 vs.1.333±0.529,P<0.05).Conclusion The herba artemisiae scopariae extract has a protective effect on PNAC induced by MDR3 gene mutation,which may be related to antagonizing inflammatory reaction,decreasing the expression of TNF mRNA and improving the expression of ABCB11 gene encoding BSEP.

Objective:To analyze the clinical characteristics of monkeypox patients.Methods:The clinical data and laboratory findings of 4 patients with monkeypox patients diagnosed at Yiwu Central Hospital in July 2023 were analyzed. Herpes fluid and skin tissue samples were collected, the viruses were isolation and cultured in African green monkey kidney cells (Vero) and identified with whole gene sequencing.Results:All four patients were male, aged 24-35 years. All patients had male-to-male behavior within 21 days before onset of the disease. Among them, one patient has AIDS and one patient has syphilis. Four patients presented with perineal skin lesions with itching, and 3 patients were found to have enlarged lymph nodes upon admission. Laboratory testing: lymphocyte abnormality (4.57×10 9/L) in 1 case; increased procalcitonin (0.25 ng/mL) in 1 case; elevated IL-10 levels ( 7.11 ng/L and 9.42 ng/L) in 2 cases; increased IL-6 (66 ng/L) and IL-4 (3.24 ng/L) in 1 case, respectively. One case had abnormal myocardial zymogram with a elevated lactate dehydrogenase level of 313 U/L. The monkeypox virus was isolated from lesion tissue and herpes fluid, and the whole gene sequencing identified it as the B. 1.3 subtype of the IIb evolutionary branch, exhibiting typical pathological effects on Vero cells. Conclusion:The clinical manifestations of the 4 monkeypox patients confirmed in Zhejiang province are mild, patients had a definitive history of male-to-male sexual behavior and the virus strains belong to the B. 1.3 lineage of the IIb evolutionary branch.

COVID-19/virology* ; China/epidemiology* ; Disease Outbreaks ; Genetic Linkage ; Humans ; Phylogeny ; Polymorphism, Single Nucleotide ; SARS-CoV-2/isolation & purification*

BACKGROUND: Integrin α5β1 has been shown to be related to acetabular cartilage degeneration due to developmental dysplasia of the hip.OBJECTIVE: To investigate the expression of integrin α5β1 in differently degenerated cartilage tissues of the knee after knee osteoarthritis.METHODS: Seventy-five degenerated articular cartilage specimens at the weight-bearing surface of femoral lateral and medial condyles were removed from patients with knee osteoarthritis who underwent total knee replacement, and were then allotted to four groups based on Mankin's grading system: normal (n=6), mild degeneration (n=24), moderate degeneration (n=26) and severe degeneration (n=19) groups. The expression of integrin α5β1 in each group was detected using real-time PCR, immunohistochemistry and western blot assay.RESULTS AND CONCLUSION: The detected results were consistent in the three kinds of assays, and the expression level of integrin α5β1 was ranked as follows: severe degeneration group > moderate degeneration group > mild degeneration group > normal group (P < 0.05). To conclude, differential expression levels of integrin α5β1 are found in different degenerative degrees of articular cartilage in knee osteoarthritis. Furthermore, the expression level of integrin α5β1 is increased with the degenerative severity.

The characterization of the human T-cell receptor (TCR) repertoire has made remarkable progress, with most of the work focusing on the TCRβ chains. Here, we analyzed the diversity and complexity of both the TCRα and TCRβ repertoires of three healthy donors. We found that the diversity of the TCRα repertoire is higher than that of the TCRβ repertoire, whereas the usages of the V and J genes tended to be preferential with similar TRAV and TRAJ patterns in all three donors. The V-J pairings, like the V and J gene usages, were slightly preferential. We also found that the TRDV1 gene rearranges with the majority of TRAJ genes, suggesting that TRDV1 is a shared TRAV/DV gene (TRAV42/DV1). Moreover, we uncovered the presence of tandem TRBD (TRB D gene) usage in ~2% of the productive human TCRβ CDR3 sequences.
Complementarity Determining Regions ; genetics ; DNA Primers ; chemistry ; genetics ; Female ; Gene Rearrangement, beta-Chain T-Cell Antigen Receptor ; genetics ; Gene Rearrangement, delta-Chain T-Cell Antigen Receptor ; genetics ; Genes, T-Cell Receptor beta ; genetics ; Genetic Variation ; High-Throughput Nucleotide Sequencing ; Humans ; Immunoglobulin Joining Region ; genetics ; Immunoglobulin Variable Region ; genetics ; Male ; Receptors, Antigen, T-Cell, alpha-beta ; genetics