Objective:To investigate the effect of mild moxibustion on transient receptor potential vanilloid type 1(TRPV1)channel expression in primary dysmenorrhea(PD)rats and explore its mechanism in alleviating central pain sensitization.Methods:Thirty-two female non-pregnant Wistar rats were randomized into a blank group,a model group,a mild moxibustion group,and a capsazepine group,with 8 rats in each group.Except for the blank group,the other three groups used estradiol benzoate,ice-water bath,and oxytocin to establish the rat PD model of cold-dampness stagnation pattern.The interventions began on day 1 of modeling,once a day,and lasted 10 d.The mild moxibustion group received mild moxibustion at Shenque(CV8)and Guanyuan(CV4),20 min/time;in the capsazepine group,capsazepine was injected at a dose of 2 mg/(kg·bw).The abdominal pain threshold was measured 10-30 min after oxytocin injection on day 11;enzyme-linked immunosorbent assay was used to detect serum prostaglandin F2α(PGF2α)level;the expression of TRPV1,cluster of differentiation 11B(CD11B),and proto-oncogene c-Fos in the spinal dorsal horn and hypothalamus was detected by immunofluorescence and Western blotting.Results:Compared to the blank group,the model group showed a decreased pain threshold(P<0.05)and an increased serum PGF2α level with elevated TRPV1,CD11B,and c-Fos protein expression in the spinal dorsal horn and hypothalamus(P<0.05).Compared to the model group,both the mild moxibustion group and capsazepine group showed significantly increased pain thresholds(P<0.05),along with decreased serum PGF2α levels and reduced protein expression levels of TRPV1,CD11B,and c-Fos in the spinal dorsal horn and hypothalamus(P<0.05).Rat pain threshold in the capsazepine group was higher than that in the mild moxibustion group(P<0.05).Serum PGF2α level,the expression levels of CD11B and c-Fos proteins in the spinal dorsal horn,as well as TRPV1,CD11B,and c-Fos proteins in the hypothalamus of the capsazepine group were lower than those in the mild moxibustion group(P<0.05).Conclusion:Mild moxibustion at Shenque(CV8)and Guanyuan(CV4)may alleviate the central pain sensitization in PD rats by down-regulating TRPV1 channel expression in the spinal dorsal horn and hypothalamus,thus playing an analgesic effect.

Objective To investigate the effects of indirect moxibustion on the expressions of DNA methyltransferases(DNMT)and methylation of the brain-derived neurotrophic factor(BDNF)promoter region in uterine tissues of rats with primary dysmenorrhea(PD);To explore the mechanism of epigenetic regulation of indirect moxibustion on PD model rats.Methods A total of 32 female SD rats were randomly divided into blank group,model group,indirect moxibustion group and Western medicine group,with 8 rats in each group.The PD model with cold dampness stagnation syndrome was established using ice-water baths combined with estradiol benzoate and oxytocin.Starting from the first day of modeling,the indirect moxibustion group received salt-partitioned moxibustion at"Shenque"and ginger-partitioned moxibustion at"Guanyuan"for 20 min,while the Western medicine group was gavaged ibuprofen solution.Both interventions were given once a day for 10 days.On day 11,writhing responses were observed and scored after oxytocin injection,Western blot and RT-qPCR were used to detect protein and mRNA expression of BDNF,DNMT3A and DNMT3B in uterine tissue,immunohistochemical staining was used to detect the positive expressions of DNMT3A and DNMT3B in uterine tissue.The DNA methylation of BDNF promoter region in uterine tissue was detected by sulfite sequencing.Results Compared with the blank group,the writhing latency was shortened and the writhing score increased in the model group(P<0.01);the protein and mRNA expressions of BDNF,DNMT3A and DNMT3B in uterine tissue increased(P<0.01),the positive expressions of DNMT3A and DNMT3B increased(P<0.01),and the DNA methylation rate in BDNF promoter region decreased(P<0.01).Compared with the model group,the writhing latency was lengthened and the writhing score decreased in the indirect moxibustion group and Western medicine group(P<0.05,P<0.01);the protein and mRNA expressions of BDNF,DNMT3A and DNMT3B in uterine tissue decreased(P<0.05,P<0.01),the positive expressions of DNMT3A and DNMT3B decreased(P<0.01),and the DNA methylation rate in BDNF promoter region increased(P<0.01).Conclusion Indirect moxibustion at"Shenque"and"Guanyuan"may inhibit the transcription of BDNF by increasing the DNA methylation level of BDNF promoter region,and reduce the expression of BDNF,so as to relieve the pain of PD rats.

Objective:To analyze the factors associated with the occurrence of peritoneal dialysis-associated peritonitis (PDAP) in patients with diabetic nephropathy and to establish a risk model.Methods:The clinical data of 90 patients with diabetic nephropathy who underwent peritoneal dialysis using Einkorn dextrin dialysate at Yiwu Central Hospital from January 2021 to December 2023 were analyzed retrospectively. Patients were classified into the PDAP group and the non-PDAP group based on the occurrence of PDAP as recorded in the medical records system. The clinical data and laboratory indicators of the two patient groups were collected and compared. Collinearity analysis was performed on the significantly different variables, and those without collinearity issues were included in a logistic regression model to identify factors associated with infection. The statistically significant variables from the regression analysis were used as predictors to construct a nomogram risk prediction model for the occurrence of infections in patients, and the model was subsequently validated.Results:Among the 90 patients, 21 (23.33%) developed PDAP and were included in the PDAP group, while the remaining 69 patients (76.67%) did not develop PDAP and were included in the non-PDAP group. The differences in baseline systemic inflammatory response index (SIRI), serum albumin (ALB), blood potassium levels, hemoglobin (Hb) levels, and dialysis duration between the two groups were statistically significant [(1.53 ± 0.45) vs. (1.31 ± 0.32), (28.67 ± 3.64) g/L vs. (34.61 ± 4.13) g/L, (3.13 ± 0.47) mmol/L vs. (3.97 ± 0.51) mmol/L, (90.83 ± 10.15) g/L vs. (107.27 ± 10.66) g/L, 43.00 (38.50, 48.00) months vs. 34.00 (32.00, 38.00) months, t/ Z = 3.17, 5.92, 6.72, 6.25, 7.03, all P < 0.05]. None of the indicators exhibited collinearity issues (variance inflation factor ≤ 10, tolerance ≥ 0.1), allowing for their inclusion in the logistic regression model. According to the logistic regression analysis, baseline SIRI ( OR = 5.816, 95% CI: 1.404-24.097) and dialysis duration ( OR = 1.412, 95% CI: 1.214-1.643) were identified as independent risk factors for the occurrence of PDAP in patients with diabetic nephropathy. In contrast, ALB ( OR = 0.653, 95% CI: 0.533-0.801), blood potassium levels ( OR = 0.025, 95% CI: 0.005-0.132), and Hb levels ( OR = 0.867, 95% CI: 0.811-0.926) were protective factors against the occurrence of PDAP. A prediction model incorporating these five predictors was established using logistic regression, and corresponding nomograms were plotted along with a decision curve and calibration curve. The net benefit rate of the prediction model within the threshold range was high, indicating that the accuracy of the model was good. Conclusions:Baseline SIRI, ALB, blood potassium levels, Hb levels, and dialysis duration in patients with diabetic nephropathy are all related risk factors for the occurrence of PDAP after peritoneal dialysis treatment. The nomogram model constructed based on these indicators can aid in the clinical screening of high-risk populations and provide a theoretical basis for the implementation of preventive and therapeutic measures.

Objective:To analyze the factors associated with the occurrence of peritoneal dialysis-associated peritonitis (PDAP) in patients with diabetic nephropathy and to establish a risk model.Methods:The clinical data of 90 patients with diabetic nephropathy who underwent peritoneal dialysis using Einkorn dextrin dialysate at Yiwu Central Hospital from January 2021 to December 2023 were analyzed retrospectively. Patients were classified into the PDAP group and the non-PDAP group based on the occurrence of PDAP as recorded in the medical records system. The clinical data and laboratory indicators of the two patient groups were collected and compared. Collinearity analysis was performed on the significantly different variables, and those without collinearity issues were included in a logistic regression model to identify factors associated with infection. The statistically significant variables from the regression analysis were used as predictors to construct a nomogram risk prediction model for the occurrence of infections in patients, and the model was subsequently validated.Results:Among the 90 patients, 21 (23.33%) developed PDAP and were included in the PDAP group, while the remaining 69 patients (76.67%) did not develop PDAP and were included in the non-PDAP group. The differences in baseline systemic inflammatory response index (SIRI), serum albumin (ALB), blood potassium levels, hemoglobin (Hb) levels, and dialysis duration between the two groups were statistically significant [(1.53 ± 0.45) vs. (1.31 ± 0.32), (28.67 ± 3.64) g/L vs. (34.61 ± 4.13) g/L, (3.13 ± 0.47) mmol/L vs. (3.97 ± 0.51) mmol/L, (90.83 ± 10.15) g/L vs. (107.27 ± 10.66) g/L, 43.00 (38.50, 48.00) months vs. 34.00 (32.00, 38.00) months, t/ Z = 3.17, 5.92, 6.72, 6.25, 7.03, all P < 0.05]. None of the indicators exhibited collinearity issues (variance inflation factor ≤ 10, tolerance ≥ 0.1), allowing for their inclusion in the logistic regression model. According to the logistic regression analysis, baseline SIRI ( OR = 5.816, 95% CI: 1.404-24.097) and dialysis duration ( OR = 1.412, 95% CI: 1.214-1.643) were identified as independent risk factors for the occurrence of PDAP in patients with diabetic nephropathy. In contrast, ALB ( OR = 0.653, 95% CI: 0.533-0.801), blood potassium levels ( OR = 0.025, 95% CI: 0.005-0.132), and Hb levels ( OR = 0.867, 95% CI: 0.811-0.926) were protective factors against the occurrence of PDAP. A prediction model incorporating these five predictors was established using logistic regression, and corresponding nomograms were plotted along with a decision curve and calibration curve. The net benefit rate of the prediction model within the threshold range was high, indicating that the accuracy of the model was good. Conclusions:Baseline SIRI, ALB, blood potassium levels, Hb levels, and dialysis duration in patients with diabetic nephropathy are all related risk factors for the occurrence of PDAP after peritoneal dialysis treatment. The nomogram model constructed based on these indicators can aid in the clinical screening of high-risk populations and provide a theoretical basis for the implementation of preventive and therapeutic measures.

Objective:To investigate the effect of mild moxibustion on transient receptor potential vanilloid type 1(TRPV1)channel expression in primary dysmenorrhea(PD)rats and explore its mechanism in alleviating central pain sensitization.Methods:Thirty-two female non-pregnant Wistar rats were randomized into a blank group,a model group,a mild moxibustion group,and a capsazepine group,with 8 rats in each group.Except for the blank group,the other three groups used estradiol benzoate,ice-water bath,and oxytocin to establish the rat PD model of cold-dampness stagnation pattern.The interventions began on day 1 of modeling,once a day,and lasted 10 d.The mild moxibustion group received mild moxibustion at Shenque(CV8)and Guanyuan(CV4),20 min/time;in the capsazepine group,capsazepine was injected at a dose of 2 mg/(kg·bw).The abdominal pain threshold was measured 10-30 min after oxytocin injection on day 11;enzyme-linked immunosorbent assay was used to detect serum prostaglandin F2α(PGF2α)level;the expression of TRPV1,cluster of differentiation 11B(CD11B),and proto-oncogene c-Fos in the spinal dorsal horn and hypothalamus was detected by immunofluorescence and Western blotting.Results:Compared to the blank group,the model group showed a decreased pain threshold(P<0.05)and an increased serum PGF2α level with elevated TRPV1,CD11B,and c-Fos protein expression in the spinal dorsal horn and hypothalamus(P<0.05).Compared to the model group,both the mild moxibustion group and capsazepine group showed significantly increased pain thresholds(P<0.05),along with decreased serum PGF2α levels and reduced protein expression levels of TRPV1,CD11B,and c-Fos in the spinal dorsal horn and hypothalamus(P<0.05).Rat pain threshold in the capsazepine group was higher than that in the mild moxibustion group(P<0.05).Serum PGF2α level,the expression levels of CD11B and c-Fos proteins in the spinal dorsal horn,as well as TRPV1,CD11B,and c-Fos proteins in the hypothalamus of the capsazepine group were lower than those in the mild moxibustion group(P<0.05).Conclusion:Mild moxibustion at Shenque(CV8)and Guanyuan(CV4)may alleviate the central pain sensitization in PD rats by down-regulating TRPV1 channel expression in the spinal dorsal horn and hypothalamus,thus playing an analgesic effect.

Objective To investigate the effects of indirect moxibustion on the expressions of DNA methyltransferases(DNMT)and methylation of the brain-derived neurotrophic factor(BDNF)promoter region in uterine tissues of rats with primary dysmenorrhea(PD);To explore the mechanism of epigenetic regulation of indirect moxibustion on PD model rats.Methods A total of 32 female SD rats were randomly divided into blank group,model group,indirect moxibustion group and Western medicine group,with 8 rats in each group.The PD model with cold dampness stagnation syndrome was established using ice-water baths combined with estradiol benzoate and oxytocin.Starting from the first day of modeling,the indirect moxibustion group received salt-partitioned moxibustion at"Shenque"and ginger-partitioned moxibustion at"Guanyuan"for 20 min,while the Western medicine group was gavaged ibuprofen solution.Both interventions were given once a day for 10 days.On day 11,writhing responses were observed and scored after oxytocin injection,Western blot and RT-qPCR were used to detect protein and mRNA expression of BDNF,DNMT3A and DNMT3B in uterine tissue,immunohistochemical staining was used to detect the positive expressions of DNMT3A and DNMT3B in uterine tissue.The DNA methylation of BDNF promoter region in uterine tissue was detected by sulfite sequencing.Results Compared with the blank group,the writhing latency was shortened and the writhing score increased in the model group(P<0.01);the protein and mRNA expressions of BDNF,DNMT3A and DNMT3B in uterine tissue increased(P<0.01),the positive expressions of DNMT3A and DNMT3B increased(P<0.01),and the DNA methylation rate in BDNF promoter region decreased(P<0.01).Compared with the model group,the writhing latency was lengthened and the writhing score decreased in the indirect moxibustion group and Western medicine group(P<0.05,P<0.01);the protein and mRNA expressions of BDNF,DNMT3A and DNMT3B in uterine tissue decreased(P<0.05,P<0.01),the positive expressions of DNMT3A and DNMT3B decreased(P<0.01),and the DNA methylation rate in BDNF promoter region increased(P<0.01).Conclusion Indirect moxibustion at"Shenque"and"Guanyuan"may inhibit the transcription of BDNF by increasing the DNA methylation level of BDNF promoter region,and reduce the expression of BDNF,so as to relieve the pain of PD rats.

Objective To explore the mechanism of the treatment of primary dysmenorrhea(PD)by mild moxibustion on"Shenque"and"Guanyuan"acupoints based on the regulation of cAMP-PKA signaling pathway on TRPV1.Methods Totally 32 female non-pregnant Wistar rats were randomly divided into blank group,model group,mild moxibustion group and capsazepine group,with 8 rats in each group.Except for the blank group,the other groups all used estradiol benzoate intraperitoneal injection combined with ice water bath to establish a PD cold-dampness stagnation syndrome rat model.Intervention began on the first day of modeling,the mild moxibustion group selects"Shenque"and"Guanyuan"for mild moxibustion,20 min per time,the capsazepine group was injected capsazepine 2 mg/kg,once a day for 10 consecutive days.ELISA was used to detect uterine PGF2α and cAMP content,immunofluorescence staining was used to detect TRPV1 expression in uterine tissue,Western blot was used to detect PKA,p-PKA and TRPV1 protein expression.Results Compared with the blank group,the latency period of body twisting in the model group rats decreased,and the body twisting score increased(P<0.01);the contents of PGF2α and cAMP in uterine tissue increased(P<0.01),and the expressions of TRPV1 and p-PKA proteins increased(P<0.01).Compared with the model group,the mild moxibustion group and capsazepine group showed an increase in the latency period of body twisting and a decrease in the body twisting score(P<0.01);the content of PGF2α and cAMP in uterine tissue decreased(P<0.01),and the expressions of TRPV1 and p-PKA proteins decreased(P<0.05,P<0.01).Compared with the mild moxibustion group,the capsazepine group showed an increase in the latency period of body twisting and a decrease in the body twisting score(P<0.01);the contents of PGF2α and cAMP in uterine tissue decreased(P<0.05,P<0.01),and the expressions of TRPV1 protein decreased(P<0.05).Conclusion Mild moxibustion at"Shenque"and"Guanyuan"acupoints has obvious analgesic effect on PD rats,and its mechanism may be related to the regulation of uterine cAMP-PKA signaling pathway mediated TRPV1 protein expression.

Objective:To investigate the clinical efficacy of icodextrin dialysate in peritoneal dialysis for patients with diabetic nephropathy.Methods:A case-control study was conducted to retrospectively analyze 92 patients with diabetic nephropathy who underwent peritoneal dialysis at Yiwu Central Hospital from January 2021 to December 2023. The patients were divided into two groups based on the type of dialysis solution used: the control group ( n = 45) received glucose-based dialysate, while the observation group ( n = 47) received icodextrin dialysate. Both groups underwent dialysis for 2 months. Glycemic control indicators, lipid profiles, adverse reactions, and volume overload parameters (diastolic pressure, systolic pressure, and ultrafiltration volume) were assessed in both groups. Results:After treatment, fasting blood glucose, glycated hemoglobin, 2-hour postprandial blood glucose, triglycerides, and low-density lipoprotein cholesterol levels in the observation group were (7.56 ± 0.97) mmol/L, (7.64 ± 1.55)%, (8.49 ± 1.42) mmol/L, (2.02 ± 0.39) mmol/L, and (3.10 ± 0.47) mmol/L, respectively, all of which were significantly lower than those in the control group [(8.27 ± 1.25) mmol/L, (8.77 ± 1.89)%, (9.39 ± 1.64) mmol/L, (2.30 ± 0.44) mmol/L, (3.46 ± 0.55) mmol/L, t = 3.05, 3.14, 2.82, 3.23, 3.38, all P < 0.05]. The incidence of adverse reactions in the observation group was significantly lower than that in the control group [12.77% (6/47) vs. 31.11% (14/45), χ2 = 4.55, P < 0.05]. After treatment, the diastolic pressure and systolic pressure in the observation group were (83.75 ± 8.55) mmHg (1 mmHg = 0.133 kPa) and (142.35 ± 15.78) mmHg, respectively, both of which were significantly lower than those in the control group [(88.79 ± 8.90) mmHg, (156.20 ± 16.19) mmHg, t = 2.77, 4.16, both P < 0.05]. However, the ultrafiltration volume in the observation group was signifiantly higher than that in the control group [(638.77 ± 64.21) mL vs. (590.41 ± 60.34) mL, t = 3.72, P < 0.05]. Conclusion:Peritoneal dialysis using icodextrin dialysate in patients with diabetic nephropathy can improve glucose and lipid metabolism, reduce the incidence of adverse reactions, and effectively manage patients' volume overload.

Quarantine insects are economically important pests that frequently invade new habitats.A rapid and accurate monitoring method to trace the geographical sources of invaders is required for their prevention,detection,and eradication.Current methods based on genetics are typically time-consuming.Here,we developed a novel tracing method based on insect gut microbiota.The source location of the insect gut microbiota can be used to rapidly determine the geographical origin of the insect.We analyzed 179 gut microbiota samples from 591 individuals of 22 quarantine insect species collected from 36 regions in China.The gut microbiota of these insects primarily included Actinobacteria,Bacteroidetes,Cyanobacteria,Firmicutes,Proteobacteria,and Tenericutes.The diversity of the insect gut microbiota was closely associated with geographical and environmental factors.Different insect species could be distinguished based on the composition of gut microbiota at the phylum level.Populations of individual insect species from different regions could be distin-guished based on the composition of gut microbiota at the phylum,class,and order levels.A method for determining the geographical origins of invasive insect species has been established;however,its practical application requires further investigations before implementation.

Objective:To reports the nursing care of a patient with superior mesenteric artery syndrome after posterior spinal correction for adolescent idiopathic scoliosis.Methods:While in hospital, conservative treatment requires fasting and water deprivation, gastrointestinal decompression. Combined with perioperative nursing measures of spinal orthopedics, the nursing focus of patients during hospitalization includes: enteral and parenteral nutrition, designed the condition record sheet, and dynamically monitor the patient′s condition; personalized guidance about function exercise was gibien.In addition,continuous care after discharge were provided through health education before discharge and post-discharge follow-up.Results:After the implementation of the nursing measures, the patient recovered well after surgery, the symptoms of superior mesenteric artery syndrome were effectively controlled, and the patient resumed eating through the mouth. Two months after discharge, the patient gained 4kg of body weight.Conclusion:The treatment and nursing of superior mesenteric artery syndrome is a long-term process, nurses should place emphasis on observation and nutrition support, and also the patient psychological care.