Objective To establish an HPLC method to determine the concentration of inositol nicotinate（IN） in rat skin, and study the pharmacokinetic characteristics of IN after transdermal administration of heparin sodium inositol nicotinate cream in rats. Methods HPLC method was used to establish a simple and rapid analytical method for the determination of IN concentration in the skin of rats at different time points after administration. The established method was used to study the pharmacokinetics of IN after transdermal administration of heparin sodium inositol nicotinate cream in rats, and the pharmacokinetic parameters were fitted with DAS software. Results The linearity of the analytical method was good in the concentration range of 0.25-20 μg/ml, the quantitative limit was 0.25 μg/ml, and the average recovery rate was 96.18%. The pharmacokinetic parameters of IN after transdermal administration of heparin sodium inositol nicotinate cream in rats were as follows: t_1/2 was （4.555±2.054） h, T_max was （6±0）h, C_max was （16.929±2.153）mg/L, AUC_0−t was （150.665±16.568） mg·h /L ,AUC_0−∞ was （161.074±23.917） mg·h /L, MRT_（0−t） was （9.044±0.618）h, MRT_{（0−∞）} was （10.444±1.91） h, CLz/F was （0.19±0.03） L/（h·kg）, and Vz/F was （1.19±0.437） L/（h·kg）. Conclusion IN could quickly penetrate the skin and accumulate in the skin for a long time, which was beneficial to the pharmacological action of drugs on the lesion site for a long time. The method is simple, rapid, specific and reproducible, which could be successfully applied to the pharmacokinetic study of IN after transdermal administration in rats.

Object To study the efficacy and potential mechanism of Tongbianling capsule in constipation. Methods The effects of Tongbianling capsule on intestinal motility in normal mice and carbon powder propulsion rate in small intestine of constipation model mice after were observed administration. The potential targets and key pathways of Tongbianling capsule in treating constipation were identified through network pharmacology. To verify the mechanism, the expression of p-PI3K/PI3K, p-AKT/AKT and CASP3 proteins in mouse colon tissue was detected by the western blot. Results The time for mice to excrete the first black stool was shortened and the number of fecal particles was increased in Tongbianling capsule administration group, and the carbon powder propulsion rate of mice in each Tongbianling capsule administration group was increased. The results of network pharmacology showed that treatment of constipation by Tongbianling capsule may be related to signaling pathways such as PI3K-Akt signaling pathway and 5-HT. The protein expression of p-PI3K/PI3K, p-AKT/AKT, and CASP3 in mouse colon tissue could be significantly downregulated in administration group. Conclusion Tongbianling capsule could effectively promote intestinal peristalsis in mice, increase the frequency of defecation, and effectively treat constipation. The mechanism of its action may be related to the direct or indirect regulation of intestinal motility by the PI3K-Akt signaling pathway.

Objective:To discuss the effect of long non-coding RNA(lncRNA)DUXAP8 in exosomes(Exo)derived from the lung cancer A549 cells on the growth and immune escape of the lung cancer cells,and to clarify the mechanism.Methods:The human lung cancer cell line A549 was cultured,and its exosomes were extracted and identified.The A549 cells were treated with PKH67-labeled Exo to observe the uptake of Exo by A549 cells.Real-time fluorescence quantitative PCR(RT-qPCR)method was used to detect the expression level of lncRNA DUXAP8 in A549 cells before and after Exo treatment.The A549 cells were divided into control group(no treatment),Exo group(A549 cells treated with Exo),Exo+sh-NC group(A549 cells treated with Exo and then transfected with sh-NC),and Exo+sh-DUXAP8 group(A549 cells treated with Exo and then transfected with sh-DUXAP8).RT-qPCR method was used to detect the expression level of lncRNA DUXAP8 in A549 cells in various groups;colony formation assay was used to detect the colony formation abilities of the A549 cells in various groups;5-ethynyl-2'-deoxyuridine(EdU)staining method was used to detect the proliferation abilities of the A549 cells in various groups.After co-culturing A549 cells in various groups with human peripheral blood lymphocytes,flow cytometry was used to detect the percentages of activated CD8+T lymphocytes in the human peripheral blood lymphocytes in various groups;3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MTT)method was used to detect the killing rates of human peripheral blood lymphocytes on the A549 cells in various groups.Results:The diameter of Exo vesicles was 50-150 nm,and the exosome-specific marker proteins cluster of differentiation 63(CD63),cluster of differentiation 9(CD9),tumor susceptibility gene 101(TSG101),and heat shock protein 70(HSP70)were positively expressed,indicating successful exosome extraction.A549 cells efficiently took up PKH67-labeled Exo.The RT-PCR results showed that compared with A549 cells cultured alone,the expression level of lncRNA DUXAP8 in the A549 cells was increased after treatment with Exo derived from A549 cells(P<0.05).compared with control group,the expression level of lncRNA DUXAP8 in the A549 cells in Exo group was increased(P<0.05);compared with Exo group,the expression level of lncRNA DUXAP8 in the A549 cells in Exo+sh-DUXAP8 group was decreased(P<0.05),while there were no significant difference in the expression level of IncRNA DUXAP8 in the cells in Exo+sh-NC group(P>0.05).The colony formation assay results showed that compared with control group,the number of colony formation of the A549 cells in Exo group was increased(P<0.05);compared with Exo group,the number of colony formation of the A549 cells in Exo+sh-DUXAP8 group was decreased(P<0.05),while there was no significant difference in the number of colony formation of the A549 cells in Exo+sh-NC group(P>0.05).The EdU staining results showed that compared with control group,the EdU-positive rate of the A549 cells in Exo group was increased(P<0.05);compared with Exo group,the EdU-positive rate in A549 cells in Exo+sh-DUXAP8 group was decreased(P<0.05),while there was no significant difference in the EDU-positive rate in the cells in Exo+sh-NC group(P>0.05).The flow cytometry results showed that compared with control group,the percentage of activated CD8+T lymphocytes in the human peripheral blood lymphocytes in Exo group was decreased(P<0.05);compared with Exo group,the percentage of activated CD8+T lymphocytes in the human peripheral blood lymphocytes in Exo+sh-DUXAP8 group was increased(P<0.05),while there was no significant difference in the percentage of activated CD8+T lymphaytes in Exo+sh-NC group(P>0.05).The MTT assay results showed that compared with control group,the killing rate of human peripheral blood lymphocytes on the A549 cells in Exo group was decreased(P<0.05);compared with Exo group,the killing rate of human peripheral blood lymphocytes on A549 cells in Exo+sh-DUXAP8 group was increased(P<0.05),while no significant difference was observed in Exo+sh-NC group(P>0.05).Conclusion:The lncRNA DUXAP8 in exosomes derived from the lung cancer A549 cells promotes the proliferation of lung cancer cells and tumor immune escape.

Multi-rehabilitation treatment and early nutritional support are closely related to the recovery of critical ill patients.At present,a number of nutritional and rehabilitation interventions have been applied to critically ill patients to aid in their treatment and improve their nutritional status and motor dysfunction..In recent years,certain progress has been made in related research.This paper aims to summarize the latest literature on the application of multidisciplinary rehabilitation therapy in patients with CI under early nutritional support,provide comprehensive,systematic and practically valuable reference for clinical medical staff when formulating comprehensive treatment plans for CI patients under early nutritional support,and improve the treatment effect and quality of life of CI patients.

A method was developed for determination of dilauryl thiodipropionate(DLTDP)in fried foods by coupling solid-phase extraction(SPE)pretreatment with reverse-phase liquid chromatography-tandem mass spectrometry(RPLC-MS/MS)detection.Samples were extracted with n-hexane as the solvent,purified using a neutral alumina SPE cartridge,and finally analyzed by RPLC-MS/MS.Quantitative analysis was performed using matrix-matched calibration curves combined with an external standard method under optimal experimental conditions.The results showed that DLTDP exhibited good linearity in the range of 2.0-50.0 μg/L,with a correlation coefficient(R2)≥0.999.The limit of detection(LOD)and the limit of quantification(LOQ)of the method were 0.15 mg/kg and 0.5 mg/kg,respectively.The mean recoveries at three fortification levels(0.5,1.0,and 200 mg/kg)in different samples ranged from 84.8%to 96.8%,with the relative standard deviations(RSDs)all less than 8.0%.The developed method was highly sensitive,accurate and reliable,and easy to operate,making it well suited for the routine quantitative analysis of DLTDP in fried foods.

Objective:To observe the incidence of early blood eosinophils (Eos) elevation in patients with peritoneal dialysis (PD), analyze its related factors, and its relationship with early-onset peritonitis in PD patients.Methods:This study was a retrospective observational cohort study. Patients who underwent PD catheterization in Peking University People's Hospital from January 2012 to December 2022 were included. After surgery, PD treatment was started immediately and followed up regularly ≥12 months. The general information and laboratory indexes collected 1 week before catheterization, and at 1, 3, 6 and 12 months after catheterization were recorded. The occurrence of elevated blood Eos (≥0.5×10 9/L) during the early stage of PD, the related factors of Eos elevation (≥0.5×10 9/L) and the relationship with early-onset peritonitis (within 12 months after PD initiation) were analyzed. Results:(1) A total of 235 patients were enrolled, with an age of (57.9.±13.9) years, including 136 males (57.9%). The primary diseases were predominantly chronic glomerulonephritis (111/235, 42.7%) and diabetic nephropathy (83/235, 35.3%). During the 12-month follow-up period, 73 patients had elevated blood Eos (31.1%), of which 37 cases (50.7%) occurred within 1 month after PD catheterization, 21 cases (28.7%) occurred 2-3 months after PD catheterization, 12 cases (16.4%) occurred 4-6 months after PD catheterization, and 3 cases (4.1%) occurred 7-12 months after PD catheterization. In 73 patients with elevated Eos, 69 cases (94.5%) were mildly elevated, 4 cases (5.5%) were moderately elevated. As for the duration of elevated blood Eos, 28 cases (38.4%) lasted less than 1 month, 27 cases (37.0%) lasted 1-3 months, and 18 cases (24.7%) lasted more than 3 months. (2) In patients with elevated blood Eos, the proportion of male patients (71.4% vs. 52.1%, χ 2=7.515, P=0.006), the proportion of diabetes mellitus (55.7% vs. 41.2%, χ 2=4.168, P=0.046), and the proportion of combined vascular disease (32.9% vs. 18.2%, χ 2=6.060, P=0.017) were significantly higher than those patients in normal blood Eos group. (3) Multivariate Logistic regression analysis showed that male was an independent related factor for elevated blood Eos (≥0.5×10 9/L) in the early stages of PD ( OR=2.044, 95% CI 1.101- 3.794, P=0.023). (4) Diabetes mellitus ( OR=3.363, 95% CI 1.087-10.405, P=0.035), lower baseline hemoglobin level ( OR=0.941, 95% CI 0.903-0.980, P=0.004) and elevated blood Eos (with serum Eos<0.5×10 9/L as reference, OR=2.917, 95% CI 1.022-8.326, P=0.045) were the independent related factors of early-onset peritonitis. Conclusion:Blood Eos elevations are common in early stage of PD patients , mainly occuring within 6 months after PD catheterization, and most of them are slightly increased and last less than 3 months. Male sex is an independent related factor for the elevation of blood Eos in the early stage of PD. Elevated blood Eos is an independent related factor for early-onset peritonitis.

Objective:To summarize the key points of perioperative anesthesia management of infants undergoing endoscopic endonasal resection of craniopharyngioma.Methods:The medical records of infants, aged 1-3 yr, undergoing endoscopic endonasal resection of craniopharyngioma at Beijing Tiantan Hospital affiliated to Capital Medical University from January 1, 2023 to December 31, 2023, were retrospectively analyzed. The demographic and perioperative information was collected.Results:Six pediatric patients were included, with 5 males and 1 female, with height of (103±6) cm and weight of (16±3) kg. Five cases had abnormal anterior pituitary hormones before surgery. All the children with abnormal hormone levels were given hormone supplementation during surgery, except for those with elevated free thyroxine. None of the 6 children showed significant electrolyte abnormalities or diabetes insipidus. Five children received blood transfusion treatment, with an allogeneic red blood cell volume of (114±79) ml. Among them, 4 children received allogeneic plasma transfusion, with a volume of (75±69) ml. All the 6 pediatric patients were conscious with tracheal tubes removed after surgery. Three pediatric patients had hyponatremia, and 2 pediatric patients still had hypothyroidism. All the pediatric patients did not experience postoperative diabetes insipidus, cerebrospinal fluid rhinorrhea or epileptic seizures.Conclusions:Adequate preoperative assessments should be conducted, and detection of anterior pituitary hormone levels should be improved, with hormone replacement therapy administered when necessary in the perioperative anesthesia management for endoscopic endonasal resection of craniopharyngioma in infants. Vital signs should be closely monitored, and prompt treatment should be administered when diabetes insipidus and electrolyte disorders are found during surgery. Attention should be given to airway management to avoid airway spasms after surgery.

Objective To compare the application effects of bronchial blocker(BB)and double-lumen endotracheal tube(DLT)in pediatric thoracoscopic lobectomy.Methods A total of 80 pediatric patients who underwent thoracoscopic lobectomy at Xuzhou Children's Hospital from February 2020 to February 2023 were randomly divided into the DLT group(n=40)and the BB group(n=40)by envelope drawing.The DLT group received treatment with double-lumen endotracheal tubes,while the BB group was treated with bronchial blockers.Perioperative indicators,mean arterial pressure(MAP),heart rate(HR)at different times,airway pressure,pre-and post-operative recovery quality scores(QoR-15),intraoperative lung collapse(LCS)scores,modified Aldrete recovery scores,and adverse reactions were compared between the two groups.Results The comparison of single-lung ventilation time,intubation positioning time,and anesthesia time between the two groups showed no statistically significant differences(P＞0.05);however,the operation time of the BB group was(68.37±6.28)minutes and the hospital stay was(4.56±0.35)days,while those of the DLT group were(76.87±8.34)minutes and(5.97±0.70)days,respectively.There was a statistically significant difference between the two groups(P＜0.05).There were no significant differences in the mean arterial pressure(MAP)and heart rate(HR)before induction(T0)between the two groups(P＞0.05).The MAP of the BB group immediately after intubation(T1),2 minutes after intubation(T2),immediately after extubation(T3),and 2 minutes after extubation(T4)was(91.53±8.28)mmHg,(89.58±8.72)mmHg,(89.33±8.97)mmHg,and(95.40±9.86)mmHg,respectively.The HRS were(72.74±6.35)times/minute,(72.83±6.82)times/minute,(71.19±6.57)times/minute,and(73.63±7.46)times/minute respectively.The MAP in the DLT group was(83.88±7.29)mmHg,(83.40±7.66)mmHg,(85.17±7.91)mmHg,and(89.42±9.15)mmHg,respectively.HR was(66.68±6.17)times/minute,(64.27±6.19)times/minute,(65.97±6.28)times/minute,and(68.80±6.27)times/minute,respectively.There was a statistically significant difference between the two groups(P＜0.05).The airway pressures of the BB group at 5 minutes of bilateral lung ventilation(T5),5 minutes of unilateral lung ventilation(T6),and 5 minutes of recovery of bilateral lung ventilation(T7)were(14.36±2.46)cmH2O,(17.34±2.75)cmH2O,and(15.30±2.32)emH2O,respectively.The values in the DLT group were(17.77±2.85)cmH2O,(21.35±3.17)cmH2O,and(18.49±2.99)cmH2O,respectively.There was a statistically significant difference between the two groups(P＜0.05).There was no statistically significant difference in QOR-15 score and modified Aldrete recovery score one day before the operation between the two groups(P＞0.05).One day after surgery,the QOR-15 score of the BB group was(119.33±12.20)points,and the intraoperative LCS score was(7.70±0.61)points,while those of the DLT group were(107.60±10.10)and(6.31±0.57)points,respectively.There was a statistically significant difference between the two groups(P＜0.05).The incidence of adverse reactions was 10.0％in the BB group and 27.5％in the DLT group.There was a statistically significant difference between the two groups(P＜0.05).Conclusion The application of bronchial blockers in pediatric thoracoscopic lobectomy shows better results compared to double-lumen endotracheal tubes.

Objective Network pharmacology and molecular docking techniques were used to predict the potential mechanisms by which the active components of Piper nigrum(PN)regulate depressive-like behaviors in chronic restraint stress(CRS)mice.Methods The major chemical components and targets of PN were screened using the Traditional Chinese Medicine Systems Pharmacology database.Targets related to ferroptosis and depression were obtained from the Online Mendelian Inheritance in Man,GeneCards,and FerrDB databases.The intersecting targets were then subjected to Gene Ontology and Kyoto Encyclopedia of Genes and Gnomes(KEGG)pathway enrichment analyses,and molecular docking was performed to validate the binding capacities between the core targets and their corresponding active components.Finally,we established a CRS mouse model.Mice were treated with PN 75,150,and 300 mg/kg for 4 weeks,followed by behavioral assessments and reverse transcription-quantitative polymerase chain reaction(RT-qPCR)to verify the expression of core genes.Results Nine active components were screened from PN,corresponding to 27 targets,and 8377 targets related to depression and 547 targets associated with ferroptosis were screened from the databases.The intersection of these three sets resulted in 25 target genes.KEGG enrichment analysis revealed that these core targets were predominantly enriched in signaling pathways,including cholinergic synapses,serotonergic synapses,and neuroactive ligand-receptor interactions.Molecular docking result showed that the main active components of PN had strong binding affinities for the targets CHRM2,SLC6A4,PTGS2,and SLC6A2.Behavioral assessments demonstrated that PN significantly increased the sucrose preference index(P＜0.01,P＜0.001),reduced immobility time in the tail suspension and forced swimming tests(P＜0.01,P＜0.001),and enhanced exploratory behavior in the open field test(P＜0.05.P＜0.01,P＜0.001).PN significantly reduced the serum levels of inflammation markers(P＜0.05.P＜0.01,P＜0.001),as shown by enzyme-linked immunosorbent assay,and neurotransmitter analysis revealed that PN significantly increased the levels of serotonin and acetylcholine in the mouse hippocampus(P＜0.05).RT-qPCR showed that PN demonstrated the mRNA expression of SLC6A4(P＜0.05.P＜0.01,P＜0.001).Conclusions PN may improve depressive-like behavior in mice by modulating serotonin and acetylcholine levels,inhibiting inflammatory responses,participating in immune regulation,and exerting neuroprotective effects.

Objective: To determine the clinical efficacy and mechanism of Piwei Peiyuan Pill (PPP) combined with moxibustion for treating patients with chronic atrophic gastritis (CAG) with spleen and stomach weakness syndrome. Methods: Ninety-six CAG patients with spleen and stomach weakness syndrome who met the inclusion and exclusion criteria were enrolled at the Department of Spleen and Stomach Diseases of the Second Affiliated Hospital of Anhui University of Chinese Medicine from June 2022 to December 2023. The patients were randomly divided into a control, a Chinese medicine, and a combined group using a random number table method, with 32 cases in each group (two cases per group were excluded). The control group was treated with rabeprazole combined with folic acid tablets (both thrice daily), the Chinese medicine group was treated with PPP (8 g, thrice daily), and the combined group was treated with moxa stick moxibustion (once daily) on the basis of the Chinese medicine group for 12 consecutive weeks. Gastric mucosa atrophy in the three groups was observed before and after treatment. The gastric mucosal pathological score was evaluated. The Patient Reported Outcome (PRO) scale was used to evaluate the patients′ physical and mental health status and quality of life.An enzyme-linked immunosorbent assay was used to detect serum tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-4, IL-10, IL-37, and transforming growth factor (TGF)-β levels in each group. Real-time fluorescence PCR was used to detect the relative expression levels of signal transducer and activator of transcription 3 (STAT3) and mammalian target of rapamycin (mTOR) mRNA in each group. Western blotting was used to detect the relative expression levels of proteins related to the STAT3/mTOR signaling pathway, and the adverse drug reactions and events were recorded and compared. Results: There was no statistical difference in age, gender, disease duration, family history of gastrointestinal tumors, alcohol consumption history, and body mass index among the three groups of patients.The total therapeutic efficacy rates of the control, Chinese medicine, and combined groups in treating gastric mucosal atrophy were 66.67% (20/30), 86.67% (26/30), and 90.00% (27/30), respectively (P<0.05). Compared to before treatment, the pathological and PRO scale scores of gastric mucosa in each group decreased after treatment, and TNF-α, IL-1β, IL-37, and TGF-β levels decreased. The relative STAT3 and mTOR mRNA expression levels, as well as the relative STAT3, p-STAT3, mTOR, and p-mTOR protein expression levels decreased (P<0.05), whereas the IL-4 and IL-10 levels increased (P<0.05). After treatment, compared to the control group, the pathological score of gastric mucosa, PRO scale score, TNF-α, IL-1β, IL-37, TGF-β content, relative STAT3 and mTOR mRNA expression levels, and relative STAT3, p-STAT3, mTOR, and p-mTOR protein expression levels in the Chinese medicine and combined groups after treatment were reduced (P<0.05), whereas the IL-4 and IL-10 levels increased (P<0.05). After treatment, compared to the Chinese medicine group, the combined group showed a decrease in relative STAT3, mTOR mRNA expression levels, and STAT3, p-STAT3, mTOR, and p-mTOR protein expression levels (P<0.05). Conclusion The combination of PPP and moxibustion may regulate the inflammatory mechanism of the body by inhibiting the abnormal activation of the STAT3/mTOR signaling pathway, upregulating related anti-inflammatory factor levels, downregulating pro-inflammatory factor expression, and increasing related repair factor expression, thereby promoting the recovery of atrophic gastric mucosa, reducing discomfort symptoms, and improving the physical and mental state of CAG patients with spleen and stomach weakness syndrome.