Objective: To investigate the association between plant-based dietary patterns and gestational weight gain (GWG) among pregnant women with gestational diabetes mellitus (GDM), so as to provide the evidence for guiding the reasonable diet during pregnancy. Methods: GDM pregnant women who participated in the WeBirth project in Hangzhou Obstetrics and Gynecology Hospital were selected. Maternal age and pre-pregnancy body mass index (BMI) were collected. The Chinese version of Pregnancy Physical Activity questionnaire was used to assess the daily activity equivalent. The food frequency questionnaire was used to collect the frequency and amount of food intake in the last month before enrollment. The overall plant-based diet index (PDI), healthy plant-based diet index (HPDI), and unhealthy plant-based diet index (UPDI) were constructed based on food intake and grouped by quartiles. Multiple linear regression models were used to analyze the association between plant-based dietary patterns and GWG. Results: A total of 1 943 pregnant women with GDM, with a median age of 30.91 (interquartile range, 4.92) years. The median BMI of pre-pregnancy was 21.51 (interquartile range, 4.06) kg/m2. The medians of PDI, HPDI and UPDI were 32.42 (interquartile range, 4.60), 32.48 (interquartile range, 4.41) and 32.40 (interquartile range, 5.36), respectively. The median of GWG was 11.30 (interquartile range, 4.52) kg. Multiple linear regression analysis showed that PDI (Q3 group, β=0.674, 95%CI: 0.064-1.285; Q4 group, β=0.702, 95%CI: 0.098-1.306), UPDI (Q3 group, β=1.332, 95%CI: 0.771-1.894; Q4 group, β=1.115, 95%CI: 0.550-1.681) were positively associated with GWG after adjusting for age, pre-pregnancy BMI, daily activity equivalent and daily energy intake. No significant association was found between HPDI and GWG (all P>0.05). Conclusion UPDI was associated with a higher risk of GWG in pregnant women with GDM.

Cadmium is one of the heavy metals with severe reproductive toxicity,whose half-life lasts 20 to 40 years.Cadmium could induce dysfunction of testis and epididymis for its significant accumulation in human testis,and the amount,motility parameters and morphology of sperm change abnormally.The adverse change could also extend to male offspring and cause the impairment of their reproductive system.There has been no clear mecha-nism of how cadmium induces dysfunction of male reproductive system,and treatment for the adverse influence on male reproductive system by cadmium has not yet been found.Therefore,this problem has been discussed in repro-ductive and environmental field for a long time.A number of previous investigations showed that cadmium could damage male fertility by followed pathways,including interfering with hormone secretion,inducing oxidative stress,activating inflammation and apoptosis,and causing energy metabolism disorder,etc.In order to enlighten new ideas for therapeutic targets of male reproductive function damage induced by cadmium,we systematically reviewed and summarized the findings of previous publications in this paper.

OBJECTIVE To evaluate the economics of trastuzumab deruxtecan versus the physician-selected chemotherapy （TPC） regimen in the second-line treatment of advanced breast cancer with epidermal growth factor receptor 2 （HER-2） low expression from the perspective of the Chinese healthcare system. METHODS Based on the data of DESTINY-Breast04 clinical trial， the dynamic Markov model was constructed. The time frame of the model simulation was 10 years， and the cycle was 3 weeks. Taking cost， quality-adjusted life year （QALY） and incremental cost-effectiveness ratio （ICER） as the model output indicators， the discount rate of 5% was applied， and 3 times China’s per capita gross domestic product （GDP） in 2023 was taken as the willingness-to-pay （WTP） threshold value. Cost-utility analysis was used to evaluate the economics of the two treatment regiments in the hormone receptor-positive cohort and all patient cohorts， and uncertainty analysis was used to verify the robustness of the basic analysis result. RESULTS The results of the basic analysis showed that compared with the TPC regimen， the ICER value of trastuzumab deruxtecan regimen edu.cn were 1 045 655.76 and 906 404.99 yuan/QALY in the hormone receptor-positive cohort and all patients， respectively， both exceeding the WTP threshold （268 074 yuan/QALY）. The results of single factor sensitivity analysis showed that progression-free survival utility value， the price of trastuzumab deruxtecan and progression disease utility had a significant influence on the model results. The results of probability sensitivity analysis showed that when the WTP threshold was 3 times China’s per capita GDP in 2023， the probability of economic viability of trastuzumab deruxtecan was 0. The results of scenario analysis showed that when the patient assistance program for trastuzumab deruxtecan was considered， the probability of trastuzumab deruxtecan regimen being economical was 0. However， when the price of trastuzumab deruxtecan was reduced by 70%， the probability of its being cost-effective was significantly increased to 82.80%. CONCLUSIONS At a WTP threshold of 3 times China’s per capita GDP in 2023， the trastuzumab deruxtecan regimen is not cost-effective compared to TPC regimen for the second-line treatment of advanced breast cancer with HER-2 low expression. Reducing the price of trastuzumab deruxtecan by region can improve its cost-effectiveness.

Objective: To establish an optimized method for isolation and purification of microglia from aged rat brain tissue, and the phenotype of microglia was detected by flow cytometry. Methods: With young rats(3 months old) as control, the brain tissues of aged rats were immediately processed into single cell suspensions by mechanical dissociation and enzymatic digestion using type IV collagenase. Microglia were isolated on Percoll gradients(30%-37%-70%). The cells were stained with fluorescence-labeled antibodies and the phenotype of microglia was detected by flow cytometry. Results: This study developed a method that enzymatic digestion and mechanical dissociation combined with density gradient centrifugation. More single cells could be obtained by using this method. And the survival rate of cells was more than 90%. The flow cytometric analysis showed that the expression of M1 microglia marker CD86 and MHC Ⅱ increased(P<0.01), and the expression of M2 microglia marker CD200R increased(P<0.01) in aged rats compared with that in young rats. Conclusion The use of type IV collagenase and mechanical digestion combined with density gradient centrifugation is good for isolating and purifying microglia from adult and aged rat brain tissue.

Objective: To analyze the effects of 12week highintensity fitness exercise on body composition,lipid metabolism and gut microbiota in obese adolescents, so as to provide references for improving the health levels of obese adolescents. Methods: From January to June 2023, 20 obese adolescents from Huaifeng Vocational and Technical School in Huaian City were recruited for the study. Participants were assigned to an exercise group (n=10) and a control group (n=10) for a 12week exercise intervention by random number table method, and both groups had the same diet during the intervention period. The exercise group engaged in three exercises every week, mainly consisting of moderate to highintensity aerobic exercise combined with highintensity intervals. In the first week, there was a 30 minutes of aerobic exercise, followed by 10 minutes of highintensity interval training in the total intervention time each week, and the rest of the time was aerobic exercise with a total intervention time of 60 minutes to maintain; the control group did not receive specific interventions. Body composition was measured using bioelectrical impedance analysis, and lipid levels were determined using an automatic biochemical analyzer. The expression levels of serum inflammatory factors were measured at baseline and after 12 weeks of intervention, and gut microbiota was analyzed using 16S rRNA gene sequencing. Statistical analysis was performed using t test and Chisquare test. Results: After 12 weeks of intervention, the levels of triglycerides (TG), and lowdensity lipoprotein cholesterol (LDL-C) in obese adolescents in the exercise group decreased from (1.7±0.6, 3.5±0.8) mmol/L to (0.9±0.3, 2.6±0.4) mmol/L, while highdensity lipoprotein cholesterol (HDL-C) increased from (1.1±0.2) mmol/L to (1.4±0.2) mmol/L; and serum interleukin-1 receptor antagonist(IL-1Rn) decreased from (8.4±1.6) to (4.5±0.4) ng/mL in the exercise group (t=7.34,2.49,-3.05,2.56, P<0.05). The α-diversity results showed that the Chao index (268.00±22.67) and Ace index (243.98±38.64) in the exercise group were higher than those in the control group (184.52±19.28, 171.43±23.33), and the differences were statistically significant (t=2.48, 2.53, P<0.05). The Shannon index (5.36±1.41) in the exercise group was higher than that in the control group (4.73±1.12), and the Simpson index (0.78±0.10) was lower than that in the control group (0.89±0.10), but the differences were not statistically significant (t=1.83, -2.10, P>0.05). The β-diversity results showed that the intergroup differences in gut microbiota structure between the exercise group and the control group were greater than the intragroup differences, and the differences in gut microbiota structure between the exercise group and the control group were statistically significant (R2=0.083，P<0.05). After intervention, there were significant differences in the relative abundances at the levels of phylum, class, genus, and species in gut microbiota among obese adolescents between the exercise group and the control group (P<0.05). Conclusion The 12week highintensity fitness exercise can alleviate obesity symptoms in obese adolescents through the gut microbiota-lipid metabolism pathway and improve mild chronic inflammatory status.

Objective To observe the effects of electroacupuncture(EA)on glutamate(Glu),metabotropic glutamate receptor 2/3(mGluR2/3)and apoptosis related proteins expression in hippocampus in rats with acute myocardial ischemia(AMI);To explore the mechanism of EA against AMI.Methods Totally 50 SD rats were randomly divided into sham-operation group,model group,EA group and inhibitor group,with 10 rats in each group.Except for the sham-operation group,the rats were treated with ligation at the left anterior descending coronary artery to establish AMI model.The rats in the EA group was treated with EA at"Shenmen"and"Tongli",30 minutes each time,once a day for 3 consecutive days.The rats in the inhibitor group were treated with injection of LY341459 via the lateral ventricle 30 min after modeling.HE staining was used to observe myocardial tissue morphology,and ELISA was used to detect Caspase-3 activity in myocardial tissue and Glu content in hippocampal tissue,immunofluorescence staining was used to detect mGluR2/3 expression in hippocampal tissue,TUNEL staining was used to detect apoptosis in hippocampal tissue cells,Western blot was used to detect the expressions of PI3K,Akt,and Caspase-3 protein in hippocampal tissue.Results Compared with the sham-operation group,the myocardial cells of the model group rats showed sparse and swelling with severe infiltration of inflammatory cells;the activity of Caspase-3 in myocardial tissue significantly increased,and the Glu content,positive expression of mGluR2/3,number of apoptotic cells in hippocampal tissue significantly increased(P<0.01),and the expressions of PI3K and Akt proteins in hippocampal tissue were significantly decreased,while the expression of Caspase-3 protein significantly increased(P<0.01).Compared with the model group,myocardial cell edema and inflammatory cell infiltration were reduced in the EA group and inhibitor group,the activity of Caspase-3 in myocardial tissue was significantly decreased,the Glu content,positive expression of mGluR2/3,and number of apoptotic cells in hippocampal tissue were significantly reduced(P<0.01),the expressions of PI3K and Akt proteins in hippocampal tissue significantly increased,while the expression of Caspase-3 protein significantly decreased(P<0.01).Conclusion EA can improve myocardial injury in AMI rats,and its mechanism may be related to activation of PI3K/Akt signaling pathway,inhibition of hippocampal mGluR2/3 overexpression,reduction of Glu accumulation,inhibition of apoptosis of hippocampal neurons and reduction of neurotoxicity.

Objective To construct a culture system of endometrial organoids for infertility induced by non-immune or immune factors,and to compare the immune cytokines between them.Methods The samples were collected from infertility patients undergoing hysteroscopy in Department of Reproductive Medicine Center of The First Affiliated Hospital of Naval Medical University(Second Military Medical University).Endometrial tissues were obtained from patients with infertility caused by non-immune factors(n=3)and patients with repeated implantation failure(RIF)(n=5).The tissues were embedded in matrix glue for 3D culture after washing,digestion,re-suspension and plate attachment.The growth of endometrial organoids of the 2 groups was observed under inverted microscope;the expression of estrogen receptor,keratin and E-cadherin,which were specific endometrial markers,was detected by immunofluorescence staining;and the cytokines of the 2 groups were determined by enzyme-linked immunosorbent assay(ELISA)and the differences of cytokines between the 2 groups were observed.Results During the process of in vitro culture of endometrial organoids,the volume of organoids and the number of cells gradually increased.After 7-10 d of culture,the volume of organoids reached a stable state,and the shape gradually became a perfect circle.At the same time,the number of organoids from the infertility patients caused by non-immune factors was more than that from the infertility patients caused by RIF.Immunofluorescence staining showed the expression of endometrial related marker proteins estrogen receptor,keratin and E-cadherin,indicating the successful construction of endometrial organoids.ELISA results showed that the levels of interferon(IFN)-γ,interleukin(IL)-10,tumor necrosis factor(TNF)-α,IL-4 and TNF-α/IL-4 ratio between the 2 groups were significantly different(P＜0.05 or P＜0.01).There were no significant differences in the levels of TGF-β1 or IL-17,the ratios of IL-17/TGF-β1,IFN-γ/IL-10 or TNF-α/IL-10(all P＞0.05).Conclusion Endometrial organoids with proliferative ability from patients with non-immune infertility and RIF have been successfully cultured in vitro,which provides a new model for the basic research of immune infertility.

Objective To investigate the clinical significance of the expression of antioxidant 1 copper chaperone protein(ATOX1)in hepatocellular carcinoma(HCC)and its relationship with tumor proliferation,migration and invasion.Methods The expression of ATOX1 mRNA in HCC cancer tissue and normal liver tissue was analyzed using the Human Genome Atlas database.Immunohistochemical experiment was used to detect the expression of ATOX1 in 15 cases of HCC cancer tissue and adjacent tissue.Human HCC cell lines Hep3B and HepG2 were divided into the control group(NC),the ATOX1 knockdown group 1(si-ATOX1#1)and the ATOX1 knockdown group 2(si-ATOX1#2).The effects of ATOX1 knockdown on the malignant biological behavior of HCC cells were observed through CCK-8 cell proliferation experiment,scratch experiment and Transwell invasion experiments.A nude mouse xenograft tumor model was constructed to analyze the effect of ATOX1 knockdown on the quality and volume of transplanted tumors.Western blot assay was used to detect the relationship between ATOX1 and JAK2/STAT3 pathway protein expression.Results Bioinformatics analysis showed that expression of ATOX1 mRNA in HCC cancer tissue was higher than that in adjacent normal tissue(P＜0.05).The immunohistochemical staining results showed that the positive rate of ATOX1 protein was higher in HCC cancer tissue than that in adjacent tissue(93.33%vs.13.33%,P＜0.01).In vitro experimental results showed that siRNA knockdown of ATOX1 protein expression in Hep3B and HepG2 cells significantly reduced the proliferation,migration and invasion abilities of cancer cells(P＜0.05).In vivo experiments in mice showed that the volume and weight of subcutaneous xenograft tumors were significantly smaller in the sh-ATOX1 group than those in the sh-con group(P＜0.05).The expression levels of JAK2/STAT3 pathway-related proteins p-JAK2,p-STAT3,CyclinD1 and MMP2 were significantly lower in the subcutaneous transplanted tumor tissue of the sh-ATOX1 group than that of the sh-con group(P＜0.05).Conclusion ATOX1 can promote the proliferation,migration and invasion of HCC through JAK2/STAT3 pathway,which can potentially become a potential tumor marker and therapeutic target.

The stimulator of interferon genes(STING),an integral adaptor protein in the DNA-sensing pathway,plays a pivotal role in the innate immune response against infections.Additionally,it presents a valuable therapeutic target for infectious diseases and cancer.We observed that fangchinoline(Fan),a bis-benzylisoquinoline alkaloid(BBA),effectively impedes the replication of vesicular stomatitis virus(VSV),encephalomyocarditis virus(EMCV),influenza A virus(H1 N1),and herpes simplex virus-1(HSV-1)in vitro.Fan treatment significantly reduced the viral load,attenuated tissue inflammation,and improved survival in a viral sepsis mouse model.Mechanistically,Fan activates the antiviral response in a STING-dependent manner,leading to increased expression of interferon(1FN)and interferon-stimulated genes(ISGs)for potent antiviral effects in vivo and in vitro.Notably,Fan interacts with STING,preventing its degradation and thereby extending the activation of IFN-based antiviral responses.Collectively,our findings highlight the potential of Fan,which elicits antiviral immunity by suppressing STING degra-dation,as a promising candidate for antiviral therapy.

Objective:To investigate the effects and potential mechanisms of galectin-3(Gal3)on mast cells activation and skin injury in a psoriatic murine model.Methods:Imiquimod was applied to the bare skin on back of SPF(Gal3+/+)mice and their matched(Gal3-/-)siblings respectively once daily for 5 d to establish a psoriatic mice model.The development and dynamics of skin le-sions were monitored and recorded,scored.with the psoriasis area and severity index(PASI).The expressions of il-1 and il-17 in the damaged skin were detected by real-time PCR to compare the severity of inflammation between Gal3+/+ mice and their Gal3-/-siblings.HE staining was used to observe the histopathological changes of skin.The difference in morphology and distribution of mast cells were examined by toluidine blue staining.Immunohistochemistry and image analysis techniques were improved to assay the expression and distribution of activated mast cells markers such as tryptase and 5-hydroxytryptamine(5-HT).Results:The typical psoriatic signs in-cluding erythema,scaling and infiltration were formed in mice after continuous administration of imiquimod in Gal3-/-mice,whereas Gal3+/+ mice just developed small scaling and mild infiltration.PASI score of Gal3-/-mice was significantly higher than that of Gal3+/+mice.In accordance,il-1 and il-17 were increased in the skin lesions of Gal3+/+ mice and Gal3-/-mice,but these inflammatory factors were more upregulated remarkably in the latter.Histopathology observation revealed that the epidermis of Gal3+/+ mice was slightly thickened,whereas thickened epidermis of Gal3-/-mice was more seriously and the rete ridges extended downward,with massive in-flammatory cells aggregation.Toluidine blue staining indicated that the mast cells were sparsely distributed and most of their structures were intact in Gal3+/+ mice,instead the mast cells of Gal3-/-mice were mostly in degranulation state with increased and distributed widely in skin.Immunohistochemistry staining revealed that tryptase and 5-HT,compared with those of Gal3+/+ mice,were increased obviously in the lesioned skin of Gal3-/-mice,most of them were concentrated in the epidermal in particular.Conclusion:The defi-ciency of Gal3 may result in over-activation and degranulation of mast cells at the skin in psoriatic mice model,which aggravates the occurrence of dermatitis inflammatory injury and disease progression in psoriasis,and Gal3 plays suppressive effects on mast cells acti-vation and degranulation at the skin lesions in this model.