Objective:To investigate the effect of atosiban on hemodynamic parameters of uterine arteries and clinical effect evaluation in patients with previous implantation failure undergoing frozen-thawed embryo transfer.Methods:A retrospective cohort study was conducted to analyze 298 cycles of FET in the Department of Reproductive Medicine of the Second Affiliated Hospital of Zhengzhou University from January 2021 to June 2023. Patients were categorized into atosiban group ( n=149) and control group ( n=149) according to whether administered atosiban or not. The related indicators and clinical outcomes were compared between the two groups. Hemodynamic parameters of the uterine arteries, including bilateral uterine artery peak systolic velocity/diastolic velocity (S/D), pulsatility index (PI), resistance index (RI), and serum levels of prostaglandin F2α (PGF2α) and oxytocin were compared before and after atosiban treatment. Univariate and multivariate logistic regression analysis were applied to assess the effect of atosiban on pregnancy outcomes. The effect of atosiban on live birth rate was analyzed by age stratification. Results:The implantation rate [51.92% (135/260)], the clinical pregnancy rate [67.11% (100/149)] and the live birth rate [59.06% (88/149)] in atosiban group were significantly higher than those in control group [41.13% (102/248), P=0.015; 51.01% (76/149), P=0.005; 40.27% (60/149), P=0.001]; and the early miscarriage rate [9.00% (9/100)] was lower than that of control group [19.74% (15/76), P=0.040]. Multivariate logistic regression analysis showed that atosiban was an independent influencing factor of live birth rate ( OR=2.236, 95% CI: 1.371-3.646, P=0.001). The post-treatment right uterine artery blood flow S/D [4.61 (4.00, 5.36)], PI [1.81 (1.58, 2.05)], RI [0.79 (0.75, 0.82)], and left uterine artery blood flow S/D [4.62 (3.83, 5.61)], PI (1.84±0.38), RI [0.79 (0.74, 0.82)] were all lower than those before treatment [right S/D 4.93 (4.06, 6.04), P<0.001; PI 1.93 (1.60, 2.17), P=0.001; RI 0.80 (0.76, 0.83), P<0.001; left S/D 5.05 (4.20, 6.32), P<0.001; PI 1.95±0.43, P<0.001; RI 0.81 (0.76, 0.84), P<0.001]. Besides, the levels of PGF2α [97.01 (85.15, 109.93) ng/L] and oxytocin [41.18 (37.16, 46.78) ng/L] after treatment in atosiban group were significantly lower than those before treatment [119.71 (108.85, 129.99) ng/L, P<0.001; 51.87 (46.44, 55.54) ng/L, P<0.001). Moreover, the endometrial peristalsis waves in atosiban group were significantly less after treatment [1.00 (0.00, 2.00) times/min] than before treatment [2.00 (1.00, 3.00) times/min], and the difference was statistically significant ( P<0.001). Conclusion:Atosiban can improve uterine artery blood flow and reduce endometrial peristalsis waves in women with previous implantation failure, which increases endometrial blood perfusion. Additionally, it can also reduce the levels of PGF2α and oxytocin, and optimize the pregnancy outcome of the frozen-thawed embryo transfer.

Objective:To establish a quality and safety evaluation index system for the daytime chemotherapy in the Day Medical Management Quality Control Center of Fujian Province, providing references for objectively evaluating the quality of day chemotherapy.Methods:From December 2023 to August 2024, this study screened the initial indexes of the quality and safety evaluation index system for daytime chemotherapy through literature search and expert discussions. An index system and its weights were determined by using two rounds of Delphi method and precedence chart method. The quality of daytime chemotherapy services in 8 hospitals was evaluated by using a thousand point scale checklist based on this index system.Results:The expert motivation of both rounds of Delphi method was 100%, and the expert authority coefficient was 0.92. The quality and safety evaluation index system for daytime chemotherapy included 3 first-level indicators, 13 second-level indicators, and 54 third-level indicators; Among them, the weights of the first-level indicator included structure quality, process quality, and result quality were 0.334, 0.556, and 0.110, respectively. The quality and safety scores of daytime chemotherapy in 8 hospitals ranged from 812 to 980 points, with an average of 933 points.Conclusions:The quality and safety evaluation index system for daytime chemotherapy could objectively and comprehensively evaluate the quality and safety of hospital daytime chemotherapy.

Objective To investigate the mechanism by which suppressor of cytokine signaling 3(SOCS3)regulates microglial inflammation through nuclear factor-kappaB(NF-κB),providing novel mechanistic insights into microglial involvement in Parkinson's disease(PD)pathogenesis.Methods ① Ten male C57BL/6 mice(12 weeks old,weighing 20～25 g)were subjected to intraperitoneal injection of 15 mg/kg MPTP to establish a PD model.Rotarod test was used to assess motor function.Western blotting was employed to detect the protein expression of tyrosine hydroxylase(TH)and ionized calcium-binding adapter molecule 1(IBA-1)in the substantia nigra.RT-qPCR was utilized to measure the mRNA level of SOCS3 in the substantia nigra.Immunohistochemistry was performed to assess NF-κB p65 subunit expression.The expression of SOCS3,NF-κB and p-NF-κB was measured with Western blotting.② Microglial cell line BV2 was stimulated with 1 000 ng/mL lipopolysaccharide(LPS)for 6 h to establish an inflammatory model.Subsequently,SOCS3 was knocked down.NF-κB inhibitor BAY 11-7082 was used to treat the cells.RT-qPCR and Western blotting were used to measure the expression of SOCS3 at mRNA and protein levels.Western blotting was also applied to detect the expression of NF-κB and p-NF-κB,and ELISA was conducted to measure TNF-α and IL-1β levels in the culture supernatant.Immunofluorescence assay was carried out to localize NF-κB(nuclear vs cytoplasmic).③ A co-culture system of BV2 microglia and N2a neuroblastoma cells was established to investigate the regulatory effects of microglia on neuronal cells.MTT assay and TUNEL staining were used respectively to determine cell viability and apoptosis of N2a cells.Results ① Compared to the control mice,the PD mouse model exhibited reduced rotarod fall latency,down-regulation in TH and SOCS3(P<0.01),up-regulation in IBA-1 and increased p-NF-κB/NF-κB ratio(P<0.01).② In BV2 cells,LPS stimulation increased TNF-α,IL-1β,and p-NF-κB/NF-κB ratio(P<0.01),while down-regulated SOCS3 expression(P<0.01).SOCS3 knockdown in LPS-stimulated BV2 cells further increased the p-NF-κB/NF-κB ratio(P<0.01),increased nuclear localization of NF-κB,and elevated TNF-α and IL-1β levels(P<0.01).BAY 11-7082 treatment in these SOCS3-knockdown,LPS-stimulated cells resulted in reduced p-NF-κB/NF-κB ratio,TNF-α,and IL-1β(P<0.01),and decreased NF-κB nuclear distribution.③ LPS-stimulated BV2 cells reduced cell viability and increased cell apoptosis in N2a cells(P<0.01).SOCS3 knockdown in BV2 cells exacerbated the reduction in N2a cell viability(P<0.01)and the increase in cell apoptosis in N2a cells(P<0.01).BAY 11-7082 treatment of these SOCS3-knockdown BV2 microglia attenuated the reduction in N2a cell viability and decreased apoptosis in N2a cells(P<0.01).Conclusion SOCS3 inhibits microglia inflammatory response through down-regulation of NF-kB activity,and in turn attenuates neuronal cell death and ameliorates PD nerve injury.

Objective To demonstrate that neferine(Nef)alleviates Parkinson's disease(PD)by inhibiting microglial pyroptosis mediated through the reactive oxygen species(ROS)/NOD-like receptor protein 3(NLRP3)/Caspase-1 pathway.Methods BV2 microglial cells were divided into:control group,lipopolysaccharides(LPS)-adenosine triphosphate(ATP)group,and LPS-ATP+Nef group.Pyroptosis was induced by 1 μg/mL LPS+5 mmol/L ATP,with 2 mmol/L Nef pretreatment.Eighteen 10-12-week-old male C57BL/6 mice(22～25 g)were randomly assigned to:control(n=6),1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine(MPTP)(n=6),and MPTP+Nef(n=6)groups.Detection methods included:flow cytometry for pyroptosis,Cell Counting Kit-8(CCK-8)for viability,2',7'-dichlorodihydrofluorescein diacetate(DCFH-DA)for ROS,commercial kits for malondialdehyde(MDA),superoxide dismutase(SOD),glutathione(GSH),ELISA/Western blot for interleukin-1β(IL-1β)/IL-18,immunofluorescence/immunohistochemistry for NLRP3/Caspase-1,tyrosine hydroxylase(TH)immunohistochemistry,hematoxylin-eosin staining for neuropathology,and modified neurological severity score(mNSS).Results Versus control,LPS-ATP group showed decreased viability(P=0.002),increased pyroptosis(P<0.001),elevated ROS(P<0.001)/MDA(P<0.001)/IL-1β(P<0.001)/IL-18(P<0.001),upregulated NLRP3(P<0.001)/Caspase-1(P<0.001),and reduced GSH(P<0.001)/SOD(P<0.001).Nef treatment reversed these effects(all P<0.05).According to the results of murine studies,compared with the control group,the MPTP group had increased mNSS(P<0.001)/tissue ROS(P<0.001),downregulated TH(P<0.001),upregulated NLRP3(P<0.001)/Caspase-1(P<0.001).Nef treatment significantly attenuated the MPTP-induced deleterious effects(P<0.05).Histopathological analysis revealed that control group exhibited uniformly distributed hippocampal neurons with distinct nuclear morphology;MPTP group showed neuronal swelling,interstitial edema,and nuclear atrophy;MPTP+Nef group demonstrated ameliorated neuronal damage.Conclusion Nef inhibits microglial pyroptosis via ROS/NLRP3/Caspase-1 axis,ameliorating PD neuroinflammation and pathology.

Objective:To investigate the effect of atosiban on hemodynamic parameters of uterine arteries and clinical effect evaluation in patients with previous implantation failure undergoing frozen-thawed embryo transfer.Methods:A retrospective cohort study was conducted to analyze 298 cycles of FET in the Department of Reproductive Medicine of the Second Affiliated Hospital of Zhengzhou University from January 2021 to June 2023. Patients were categorized into atosiban group ( n=149) and control group ( n=149) according to whether administered atosiban or not. The related indicators and clinical outcomes were compared between the two groups. Hemodynamic parameters of the uterine arteries, including bilateral uterine artery peak systolic velocity/diastolic velocity (S/D), pulsatility index (PI), resistance index (RI), and serum levels of prostaglandin F2α (PGF2α) and oxytocin were compared before and after atosiban treatment. Univariate and multivariate logistic regression analysis were applied to assess the effect of atosiban on pregnancy outcomes. The effect of atosiban on live birth rate was analyzed by age stratification. Results:The implantation rate [51.92% (135/260)], the clinical pregnancy rate [67.11% (100/149)] and the live birth rate [59.06% (88/149)] in atosiban group were significantly higher than those in control group [41.13% (102/248), P=0.015; 51.01% (76/149), P=0.005; 40.27% (60/149), P=0.001]; and the early miscarriage rate [9.00% (9/100)] was lower than that of control group [19.74% (15/76), P=0.040]. Multivariate logistic regression analysis showed that atosiban was an independent influencing factor of live birth rate ( OR=2.236, 95% CI: 1.371-3.646, P=0.001). The post-treatment right uterine artery blood flow S/D [4.61 (4.00, 5.36)], PI [1.81 (1.58, 2.05)], RI [0.79 (0.75, 0.82)], and left uterine artery blood flow S/D [4.62 (3.83, 5.61)], PI (1.84±0.38), RI [0.79 (0.74, 0.82)] were all lower than those before treatment [right S/D 4.93 (4.06, 6.04), P<0.001; PI 1.93 (1.60, 2.17), P=0.001; RI 0.80 (0.76, 0.83), P<0.001; left S/D 5.05 (4.20, 6.32), P<0.001; PI 1.95±0.43, P<0.001; RI 0.81 (0.76, 0.84), P<0.001]. Besides, the levels of PGF2α [97.01 (85.15, 109.93) ng/L] and oxytocin [41.18 (37.16, 46.78) ng/L] after treatment in atosiban group were significantly lower than those before treatment [119.71 (108.85, 129.99) ng/L, P<0.001; 51.87 (46.44, 55.54) ng/L, P<0.001). Moreover, the endometrial peristalsis waves in atosiban group were significantly less after treatment [1.00 (0.00, 2.00) times/min] than before treatment [2.00 (1.00, 3.00) times/min], and the difference was statistically significant ( P<0.001). Conclusion:Atosiban can improve uterine artery blood flow and reduce endometrial peristalsis waves in women with previous implantation failure, which increases endometrial blood perfusion. Additionally, it can also reduce the levels of PGF2α and oxytocin, and optimize the pregnancy outcome of the frozen-thawed embryo transfer.

Objective:To establish a quality and safety evaluation index system for the daytime chemotherapy in the Day Medical Management Quality Control Center of Fujian Province, providing references for objectively evaluating the quality of day chemotherapy.Methods:From December 2023 to August 2024, this study screened the initial indexes of the quality and safety evaluation index system for daytime chemotherapy through literature search and expert discussions. An index system and its weights were determined by using two rounds of Delphi method and precedence chart method. The quality of daytime chemotherapy services in 8 hospitals was evaluated by using a thousand point scale checklist based on this index system.Results:The expert motivation of both rounds of Delphi method was 100%, and the expert authority coefficient was 0.92. The quality and safety evaluation index system for daytime chemotherapy included 3 first-level indicators, 13 second-level indicators, and 54 third-level indicators; Among them, the weights of the first-level indicator included structure quality, process quality, and result quality were 0.334, 0.556, and 0.110, respectively. The quality and safety scores of daytime chemotherapy in 8 hospitals ranged from 812 to 980 points, with an average of 933 points.Conclusions:The quality and safety evaluation index system for daytime chemotherapy could objectively and comprehensively evaluate the quality and safety of hospital daytime chemotherapy.

Objective To analyze the distribution of carbapenem-resistant strains and the transmission mode of resistance genes in the bacteria strains from urinary system of the individuals outside hospitals,and further explore the impacts of the antibiotics with different antibacterial mechanisms on the conjugation transfer of resistant plasmids.Methods The imipenem-resistant strains from 991 non-re-petitive urine samples of healthy individuals were screened for determining the carbapenem-resistance genotypes.Using the multilocus sequence typing(MLST)method,the main carbapenem-resistant strains were classified to determine the phylogenetic relationship be-tween different sequence types(STs)and reveal the transmission mode of resistance genes in the individuals outside hospitals.The conjugation experiment was used to analyze the effects of different sub-inhibitory concentrations of ampicillin,ciprofloxacin,and genta-micin on the conjugation efficiency of resistant plasmids in the bacteria of donor and/or recipient at different times.Results A total of 18 non-repetitive carbapenem-resistant strains(1.82％,18/991)were detected in healthy individuals outside hospitals,among which Escherichia coli(E.coli)(44.44％,8/18)was the main strain with main genotype being blaKPC-2(7/8).MLST showed that the 7 strains of E.coli with blaKPC-2 genotype belonged to ST-10,ST-101,ST-131,ST-405,ST-410,ST-1193,and ST-2562,respectively.Homologous clustering analysis showed that the type of the 7 E.coli strains exhibited high diversity.The range of joint efficiency was(1.59±0.20)× 10-4 to(4.01±1.31)× 10-4.The highest conjugation efficiency was observed in the donor bacteria treated with 1/8 of MIC of antibiotics for 9 hours,and the conjugation efficiency most significantly increased compared to the group without antibiotic treat-ment.Three antibiotics with different mechanisms of action could all improve conjugation efficiency,among which ampicillin exhibited the most significant improvement.Conclusion In this study,the genotype of carbapenem-resistant Escherichia coli(CREC)was mainly blaKPC-2 with a main mode of horizontal transmission.Antibiotics with sub-inhibitory concentrations could promote the conjugation transfer of the resistant plasmid.There may be significant differences in the effects of antibiotics with different mechanisms of action and different antibiotic stress conditions on the conjugation efficiency.

Objective To correctly identify the blood group of ABO and study its molecular biological characteristics.Methods Blood samples from blood donors with discrepancies in forward and reverse typing using the microplate method were subjected to both saline tube agglutination test for serological identification and polymerase chain reaction-sequence specific primers(PCR-SSP)for genotyping.Additionally,direct sequencing of exons 1 to 7 of the ABO gene was performed on some donor samples to analyze their blood phenotype,genotype and gene sequence.Results For 256 samples showing discrepancy between forward and reverse typing in microwell method,119 were identified as normal ABO blood types,90 were weakened ABO antibodies and 47 were ABO subtypes by serology tube test.According to the PCR-SSP genotyping test,233 of 256(91.02%)were consistent with serological phenotype and genotype,17 of 256(6.64%)were inconsistent,and 6 samples can′t read genotype based on the kit result typing table.A total of 17 genotypes were identified in 250 samples as AO1 in 56,AO2 in 58,AA in 50,BO1 in 31,BO2 in 17,BB in 8,O1O1 in 2,O1O2 in 7,AB in 13,AO4 in 1,A205O2 in 1,A205A in 1,A201A in 1,O1O4 in 1,O2O2 in 1,A201B in 1 and A205B in 1.Sequencing of exons 1 to 7 of the ABO gene was carried out in 78 samples,and 29 ABO alleles were detected,seven of which were common alleles(?A101,?A102,?A104,?B101,?O01,?O02,?O04),22 of which were rare alleles(?A201,?A205,?Ax01,?Ax03,?Ax13,?Ax19,?Ax22,?Ael10,?B305,?Bel03,?Bel06/?Bx02,?Bw07,?Bw12,?Bw17,?Bw37,?O05,?O26,?O61,?B(A)04,?B(A)07,?cisAB01 and ?cisAB01var).In addition,six rare allele mutation sites were identified(c.101A＞G;c.103_106delG;c.146_147insGC;c.259G＞T;c.322C＞T;c.932T＞C).Conclusion The identification of ambiguous ABO blood group requires the combination of serological testing and molecular biological examination to correctly identify the blood type and ensure the safety of clinical blood transfusion.

A 41-year-old male was presented with rapidly progression memory impairment for 2 months and episodic limb shaking for 2 weeks as the main manifestations.Physical examination showed verbal disadvantage with decreased memory,attention,comprehension,and orientation.Serum vitamin B12 levels decreased,serum anti gastric parietal cell antibodies and anti-intrinsic factor antibodies were positive.Blood analysis showed macrocytic anemia,neuropsychological scale showed functional impairment in multiple cognitive domains,electrophysiological examination showed peripheral nerve damage,cerebrospinal fluid and imaging examination showed no abnormalities.The patient was diagnosed as having vitamin B12 deficiency dementia,vitamin B12 deficiency related involuntary movement and pernicious anemia.Supplementing with B vitamins and folic acid significantly improved cognitive impairment and eliminated symptoms of limb shaking.The purpose of this case report is to enhance the understanding of clinical doctors about dementia and involunting movement caused by vitamin B12 deficiency,in order to diagnose and treat it early.

ObjectiveTo explore the anti-tumor effect and mechanism of Shenqi Yiliu prescription in the intervention of pyroptosis. MethodTen male BALB/c mice were randomly selected and assigned to the blank group. The remaining 40 mice underwent the induction of the liver cancer xenograft model. After 5 days of modeling， 40 surviving mice were randomly divided into model group， cisplatin group ［2.5×10^-3 g·kg^-1·（3 d）^-1］， Shenqi Yiliu prescription group （27 g·kg^-1·d^-1）， and a combination group （Shenqi Yiliu prescription group + cisplatin）. The mice in the blank group and the model group were treated with an equal volume of normal saline for 10 days. The general conditions of mice in each group were observed. After the intervention， the tumor weight of the mice was weighed and the tumor inhibition rate was calculated. Hematoxylin-eosin （HE） staining was used to observe the pathological changes in tumor tissues. The levels of mouse liver function indicators， including alanine aminotransferase （ALT） and aspartate aminotransferase （AST） were detected. The TdT-mediated dUTP-biotin nick end labeling （TUNEL） assay was used to detect DNA damage in mouse tumor tissue cells. Immunohistochemistry （IHC）， immunofluorescence （IF）， and Western blot were used to detect the protein expression levels of NOD-like receptor protein 3 （NLRP3）， cysteinyl aspartate-specific protease-1 （Caspase-1）， and gasdermin D （GSDMD） in tumor tissues. The levels of interleukin-1β （IL-1β） and interleukin-18 （IL-18） in tumor tissues were detected by enzyme-linked immunosorbent assay （ELISA）. ResultCompared with the mice in the blank group， those in the model group were in a poor mental state， sleepy， and lazy， and their fur color was dull， with increased levels of serum ALT and AST in liver function tests （P<0.01）. Compared with the model group， the groups with drug intervention showed improved mental state， inhibited tumor growth to varying degrees， and decreased tumor weight， and the tumor inhibition rate in the combination group was the highest （P<0.01）. HE staining showed that the pathological and morphological lesions of the tumor tissues in the model group were significant， while those in all groups with drug intervention were improved to a certain extent. The karyolysis and nuclear rupture in the Shenqi Yiliu prescription group and the combination group were more significant. In the liver function test， the serum ALT and AST levels of mice in the Shenqi Yiliu prescription group and the combination group decreased （P<0.01）， and the inflammatory factors IL-1β and IL-18 in each group with drug intervention decreased （P<0.05， P<0.01）. Among them， the declining trend of IL-1β and IL-18 in the Shenqi Yiliu prescription group was the most significant （P<0.01）. TUNEL staining showed that the positive TUNEL staining in each group with drug intervention decreased after intervention （P<0.05， P<0.01）， especially the cisplatin group and Shenqi Yiliu prescription group （P<0.01）. Western blot， IHC， and IF found that the protein expression levels of NLRP3， Caspase-1， and GSDMD in each group with drug intervention decreased （P<0.05， P<0.01）. Compared with the mice in the cisplatin group， those in the Shenqi Yiliu prescription group and the combination group had better mental state and regular tumor morphology， and the tumor weight of the mice in the combination group decreased （P<0.05）. The levels of ALT and AST in the Shenqi Yiliu prescription group decreased （P<0.05）， and the levels of IL-1β and IL-18 in the Shenqi Yiliu prescription group and the combination group decreased （P<0.05， P<0.01）， especially in the combination group （P<0.01）. The results of IHC showed that the expression of GSDMD protein in the tumor tissues of mice in the combination group was reduced （P<0.01）. IF detection showed that the expression of NLRP3 in the tumor tissues of the Shenqi Yiliu prescription group was reduced （P<0.01）. The results of Western blot showed that the expression level of NLRP3 protein in the Shenqi Yiliu prescription group and the combination group decreased （P<0.01）， and the expression level of Caspase-1 protein in the combination group decreased （P<0.01）. The decrease in GSDMD protein expression was not significant， and the difference was not statistically significant. ConclusionShenqi Yiliu prescription combined with cisplatin has an obvious anti-tumor effect， which may be achieved by down-regulating the NLRP3/Caspase-1/GSDMD inflammatory pyroptosis pathway to inhibit cell pyroptosis， and relieve the inflammatory response in mice with liver cancer.