1.Intranasal delivery of nerve growth factor attenuates neuroinflammation following traumatic brain injury in rats
Ruibing GUO ; Yongjun JIANG ; Ruidong YE ; Xinying FAN ; Minmin MA ; Yun LI ; Gelin XU ; Xinfeng LIU
Journal of Medical Postgraduates 2014;(10):1020-1022
Objective Neuroinflammation following traumatic brain injury (TBI) may give rise to neurodisorder.This study aimed to investigate the effect of intranasal delivery of nerve growth factor ( NGF) on neuroinflammation following TBI and its action mechanism in rats. Methods Thirty-six male adult Sprague-Dawley rats were equally divided into a sham , a TBI, and a TBI+NGF group.The rats in the TBI +NGF group were treated with NGF intranasally at 12 and 24 hours after TBI.The levels of IL-1βand TNF-αin the injured cerebral cortex were detected by ELISA , the DNA-binding activity of NF-κB evaluated by EMSA , and the expres-sion of amyloid-β( Aβ42 ) determined by Western blot . Results NGF attenuated the inflammation following TBI .Compared with the TBI group, the level of IL-1βwas obviously decreased in the TBI +NGF group at 12 hours (70.65 ±3.10 vs 37.51 ±1.92) and 24 hours (68.85 ±8.10 vs 36.23 ±2.99, P<0.05), and so was that of TNF-α(47.12 ±7.38 vs 27.63 ±5.77 and 56.15 ±11.20 vs 29.94 ±8.62, P<0.05).The DNA-binding activity of NF-κB was reduced to 111.62 ±0.49 and 131.52 ±0.88, and the expression of Aβ42 to 0.23 ±0.008 and 0.52 ±0.004 at 12 and 24 hours respectively after treatment with NGF , both with statistically significant differences from the TBI group (P<0.05). Conclusion Intranasal administration of NGF attenuates TBI-induced neuroinflamma-tion in rats, which may be associated with its regulatory effect on the Aβ42/NF-κB signaling pathway .
2.A New Calculation Model for Calcium Requirements After Parathyroidectomy in Patients With Secondary Hyperparathyroidism
Ming CHENG ; Qian ZHANG ; Mengjing WANG ; Bihong HUANG ; Ye TAO ; Chunyan FAN ; Hongying WANG ; Minmin ZHANG
Clinical and Experimental Otorhinolaryngology 2023;16(3):282-289
Objectives:
. We aimed to develop a new calculation model for calcium requirements in dialysis patients following parathyroidectomy.
Methods:
. A total of 98 patients with secondary hyperparathyroidism receiving parathyroidectomy from January 2014 to January 2022 were enrolled in this study. Among these patients, 78 were randomly selected for construction of the calcium requirement calculation model, and the remaining 20 patients were selected for model validation. The calcium requirement model estimated the total calcium supplementation for 1 week after surgery using variables with significant relationships in the derivation group by stepwise multiple linear regression analysis. Bias, precision, and accuracy were measured in the validation group to determine the performance of the model.
Results:
. The model was as follows: calcium requirement for 1 week after surgery=33.798–8.929×immediate postoperative calcium+0.190×C-reactive protein–0.125×age+0.002×preoperative intact parathyroid hormone+0.003×preoperative alkaline phosphatase (R2=0.8). The model was successfully validated.
Conclusion
. We generated a novel model to guide calcium supplementation. This model can assist in stabilizing the serum calcium levels of patients during the early postoperative period. Furthermore, it contributes to the individualized and precise treatment of hypocalcemia in patients following parathyroidectomy.
3.The application of HC visual laryngoscope used for emergency tracheal intubation on obese patients in Emergency Department
Hui FENG ; Longfei PAN ; Yuan FAN ; Jiangli SUN ; Lihua YAN ; Minmin LI ; Jing YAN
Chinese Journal of Emergency Medicine 2019;28(1):75-78
Objective To investigate the effect and application value of HC visual laryngoscope used for the emergency tracheal intubation on obese patients in the Emergency Department. Methods Totally 80 obese patients enrolled from January 2014 to December 2016 from Emergency Department, Second affiliated hospital of Xi'an Jiaotong University who needed the emergency tracheal intubation were randomly (random number) divided into two groups. Patients in group T were operated with traditional laryngoscope, and patients in group HC with HC visual laryngoscope. Then the success rate of glottis exposure, the trial times, operative time, success rate and complication rate of tracheal intubation were compared between the two groups. Results The success rate of glottis exposure in group HC was significantly higher than that in group T (95% vs 77.5%, P<0.05). The one-time success rate of tracheal intubation and the total success rate of tracheal intubation in group HC were significantly higher than those in group T (72.5% vs 37.5%, and 95% vs 62.5%, respectively, P<0.05). However, the trial times of successful intubation cases and the operative time of successful intubation cases were significantly less than those in group T (1.26±0.40) vs (1.64±0.82), and (30.74±6.17) s vs (44.2±7.68) s, respectively, P<0.05. The complication rate of tracheal intubation in group HC was significantly less than that in group T (12.5% vs 35%, P<0.05). Conclusions HC visual laryngoscope used for the obese patients in Emergency Department can not only increase the success rate of glottis exposure, decrease trial times and shorten operative time of intubation, but also improve the success rate and decrease the complication rate of emergency tracheal intubation, thus having a certain application value.
4.Risk factors for hypocalcemia after parathyroidectomy in maintenance hemodialysis patients with secondary hyperparathyroidism
Ming CHENG ; Bihong HUANG ; Ye TAO ; Chunyan FAN ; Weichen ZHANG ; Hongying WANG ; Jing CHEN ; Minmin ZHANG
Chinese Journal of Nephrology 2022;38(5):397-405
Objective:To explore the risk factors of hypocalcemia and the correlation between calcium supplementation and clinical parameters after parathyroidectomy (PTX) in maintenance hemodialysis patients with secondary hyperparathyroidism (SHPT), and to analyze the effect of calcium supplementation after PTX on the long-term prognosis of patients.Methods:This study was a single-center retrospective study. The patients who underwent PTX in maintenance hemodialysis patients with SHPT in the Huashan Hospital affiliated to Fudan University from October 2014 to March 2021 were retrospectively enrolled. Total PTX with auto transplantation or total PTX alone were the surgical procedures. According to the postoperative requirement of calcium in the first week, the patients were divided into two groups: high calcium supplement (>16.05 g/week) group and low calcium supplement group (≤16.05 g/week). According to the average serum calcium level in the first week after operation, the patients were divided into hypocalcemia group (≤2.1 mmol/L) and non-hypocalcemia group (>2.1 mmol/L) and the differences of clinical parameters between the two groups were compared. The correlation between clinical parameters and the postoperative calcium requirement was examined through Pearson or Spearman correlation analysis. The influencing factors for hypocalcemia after PTX were examined through logistic regression analysis. The survival curve was made by Kaplan-Meier method, and the difference of cumulative survival rate between the two groups was compared by log-rank test.Results:A total of 98 maintenance hemodialysis patients with SHPT were enrolled. The levels of serum calcium, phosphorus, and intact parathyroid hormone (iPTH) after the operation decreased significantly than those of preoperation (all P<0.05). Multiple linear regression analysis showed age ( β=-0.160, P=0.030), iPTH ( β=0.004, P=0.025) and C-reactive protein ( β=0.186, P=0.011) were correlated with postoperative calcium requirement. Preoperative alkaline phosphatase ( OR=1.002, 95% CI 1.000-1.004, P=0.018) and hemoglobin ( OR=0.977, 95% CI 0.954-1.000, P=0.048) independently predicted the occurrence risk of postoperative hypocalcemia through multivariate logistic regression analysis. The recurrence rate of high calcium supplement group was higher than that of low calcium supplement group (10.26% vs 0, P=0.023) and there was no significant difference in all-cause mortality between the two groups (17.95% vs 5.08%, P=0.086). The recurrence rate between the hypocalcemia group and non-hypocalcemia group was no significantly different (8.3% vs 1.8%, P=0.451) and there was no significant difference in all cause mortality between the two groups (12.5% vs 12.7%, P=1.000). Kaplan-Meier survival curve showed that the cumulative survival rate between the two groups was no significantly different (log-rank test χ2=0.147, P=0.702). Conclusions:PTX is a safe and effective therapeutic method to reduce the level of iPTH and improve the metabolism of calcium and phosphorus in SHPT patients. Age, iPTH and C-reactive protein are correlated with the postoperative requirement of calcium in the first week. Preoperative alkaline phosphatase and hemoglobin are independent risk factors for postoperative hypocalcemia. Correcting preoperative electrolyte disorder, improving infection and anemia can reduce the incidence of hypocalcemia after PTX.
5.Efficacy and Mechanism of Shenbai Jiedu Prescription Against Proliferation of HCT116 Cells
Dong JIANG ; Haibo CHENG ; Weixing SHEN ; Changliang XU ; Jiani TAN ; Yueyang LAI ; Dongdong SUN ; Liu LI ; Minmin FAN ; Chengtao YU ; Jun XIAO
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(13):34-41
ObjectiveTo investigate the mechanism by which Shenbai Jiedu prescription (SBJDF) inhibits the proliferation of colorectal cancer (CRC) HCT116 cells. MethodAfter 48 h treatment of HCT116 cells with SBJDF (0, 0.25, 0.5, 1, 2, 4 g·L-1), the viability of HCT116 cells were determined by methyl thiazolyl tetrazolium (MTT) colorimetry. Following the classification of cells into blank control group and SBJDF (1, 2, 4 g·L-1) groups, the effect of SBJDF on HCT116 cell morphology was observed under an inverted microscope. The effects of SBJDF on the proliferation of HCT116 cells and mitochondrial membrane potential (Δψm) were detected by colony formation assay and JC-1 probe, respectively. The flow cytometry was then performed for determining cell cycle distribution and apoptosis. The effects of SBJDF on cell cycle-, apoptosis-, and nuclear factor kappa-B (NF-κB) signaling pathway-related proteins were determined by Western blot. ResultSBJDF effectively inhibited the vitality of HCT116 cells and changed their morphology in a concentration-dependent manner. Compared with the blank control group, SBJDF at 1, 2, 4 g·L-1 significantly reduced cell colony formation (P<0.05, P<0.01),and SBJDF at 2 and 4 g·L-1 arrested the HCT116 cell cycle at G0/G1 phase (P<0.05, P<0.01). Compared with the blank control group, SBJDF at 1, 2, 4 g·L-1 remarkably down-regulated the protein expression of CyclinD1 (P<0.05, P<0.01). SBJDF at 2 and 4 g·L-1 lowered the CyclinA2 and cyclin-dependent kinase 4 (CDK4) (P<0.05, P<0.01). SBJDF at 4 g·L-1 reduced the cyclin-dependent kinase 1 (CDK1) (P<0.01). Compared with the blank control group, SBJDF at 2 and 4 g·L-1 induced HCT116 cell apoptosis, down-regulated the protein expression of anti-apoptosis-related proteins Bcl-2 and Bcl-xl as well as the NF-κB signaling pathway-related proteins IκB kinase α (IKKα),inhibitor α of NF-κB (IκBα),and phospho-NF-κB p65 (p-p65) (P<0.05, P<0.01), and diminished the mitochondrial membrane potential of HCT116 cells. ConclusionSBJDF inhibits the proliferation of HCT116 cells, which may be related to its inhibition of the activation of NF-κB signaling pathway and the induction of cell cycle arrest and apoptosis.
6.Shenbai Jiedu Prescription Inhibits Proliferation of Colorectal Cancer Cells by Regulating PTEN/PI3K/Akt Signaling Pathway
Jianrong LIU ; Min HUANG ; Minmin FAN ; Haibo CHENG ; Weixing SHEN ; Jun XIAO ; Changliang XU ; Jiani TAN ; Yueyang LAI ; Chengtao YU ; Dongdong SUN ; Liu LI
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(14):36-43
ObjectiveTo study the mechanism of Shenbai Jiedu prescription inhibiting the proliferation of HCT116 colorectal cancer (CRC) cells by regulating the phosphatase and tensin homolog deleted on chromosome ten (PTEN)/phosphatidylinositol 3-kinase (PI3K)/ protein kinase B (Akt) signaling pathway. MethodShenbai Jiedu prescription was extracted by water extraction and alcohol precipitation to prepare freeze-dried powder. HCT116 cells were cultured in vitro, and treated with different concentrations of Shenbai Jiedu prescription (2, 4, 8, 16 g·L-1). The inhibitory effect of Shenbai Jiedu prescription on the proliferation of HCT116 cells was tested by methyl thiazolyl tetrazolium (MTT). Real-time quantitative PCR was used to detect the mRNA expression levels of PTEN, PI3K, Akt, glycogen synthase kinase-3β (GSK-3β), c-Myc, survivin and Cyclin D1. Western blot was employed to measure the protein expression levels of PTEN, phosphorylated PTEN (p-PTEN), PI3K, Akt, phosphorylated Akt (p-Akt), GSK-3β, phosphorylated GSK-3β (p-GSK-3β), c-Myc, survivin and Cyclin D1, β-catenin nuclear import was explored by immunofluorescence assay. ResultCompared with the control group, Shenbai Jiedu prescription inhibited the proliferation of HCT116 cells in a dose-dependent manner (P<0.01). Compared with the control group, the mRNA expression levels of PTEN and GSK-3β were up-regulated whereas those of PI3K, Akt, c-Myc, survivin and CyclinD1 were down-regulated after treatment with Shenbai Jiedu prescription (P<0.01). The protein expression levels of PTEN, p-PTEN and GSK-3β were up-regulated whereas those of PI3K, Akt, p-Akt, GSK-3β, p-GSK-3β, c-Myc, survivin and CyclinD1 were down-regulated (P<0.05, P<0.01). Immunofluorescence assay showed that Shenbai Jiedu prescription suppressed β-catenin nuclear import in HCT116 cells. ConclusionShenbai Jiedu prescription inhibited the proliferation of HCT116 cells via the mechanism of regulating the PTEN/PI3K/Akt signaling pathway.
7.Effect of Shenbai Jiedu Prescription on Fecal Metabolomics and Intestinal Flora Distribution in Patients with Colorectal Adenoma
Ye ZHANG ; Mingxin NI ; Meng SHEN ; Yuquan TAO ; Liu LI ; Minmin FAN ; Haibo CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(19):55-63
ObjectiveTo observe the effects of Shenbai Jiedu prescription on fecal metabolomics and intestinal flora diversity distribution in patients with colorectal adenoma and explore its potential targets. MethodA total of 21 patients diagnosed with colorectal adenoma were enrolled in this study. Following a four-week administration of Shenbai Jiedu prescription, their clinical symptoms were observed, and fecal samples of patients before and after treatment were collected. Untargeted metabolomics and metagenomic analysis based on liquid chromatography-mass spectrometry (LC-MS) were employed to investigate the possible metabolic pathway of Shenbai Jiedu prescription and its influence on the distribution of intestinal flora in patients. ResultThe total scores of traditional Chinese medicine (TCM) syndromes of patients after drug administration decreased significantly (P<0.01). The results of untargeted metabolomics showed that the distribution of metabolites exhibited aggregation before and after drug administration, and a total of 106 differential metabolites were screened out (P<0.05). The Kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis revealed that arginine-proline metabolism, ferroptosis, glycine, and serine and threonine metabolism were significantly enriched metabolic pathways (P<0.05). Notably, L-4-hydroxyglutamate semialdehyde, glutathione, isopentenyl pyrophosphate, creatinine, 4-acetamido-2-aminobutanoic acid, and guanidoacetic acid were found to be involved in these aforementioned metabolic pathways. Furthermore, the association between these metabolites and different intestinal flora was analyzed, and the results showed that Shenbai Jiedu prescription could interfere with metabolic pathways such as amino acid and ferroptosis in patients with colorectal adenoma by regulating intestinal flora such as Lachnoclostridium, Eggerthella, and Dialister (P<0.05). ConclusionShenbai Jiedu prescription may improve the clinical symptoms of patients by increasing the abundance of intestinal beneficial bacteria, reducing the abundance of harmful bacteria, and regulating metabolic pathways such as amino acid and ferroptosis in patients with colorectal adenoma. This study may provide some research ideas and directions for Shenbai Jiedu prescription to interfere with colorectal adenoma recurrence and carcinogenesis.
8.Biological Foundation of Colorectal Adenoma Carcinogenesis in Damp-heat Accumulation Syndrome Based on Transcriptome Sequencing and Mechanism of Shenbai Jiedu Prescription
Yuquan TAO ; Haibo CHENG ; Minmin FAN ; Chengtao YU ; Liu LI ; Ye ZHANG ; Mingxin NI ; Meng SHEN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(19):48-54
ObjectiveTo explore the biological foundation of colorectal adenoma in damp-heat accumulation syndrome and the possible anti-tumor mechanism of Shenbai Jiedu prescription. MethodEight patients with colorectal adenoma in damp-heat accumulation syndrome, 11 patients with non-damp-heat accumulation syndrome, and 10 patients with colorectal cancer recruited by Jiangsu Provincial Hospital of Traditional Chinese Medicine from February 2019 to December 2020 meeting the inclusion criteria were clinically obtained, and the tissue of the three groups of patients was subjected to transcriptome sequencing to screen for the differentially expressed genes between the syndrome and the diseases. The intersection of the differentially expressed genes between the syndrome and the disease was taken for further screening of the differentially expressed genes sequentially increasing or sequentially decreasing in patients with non-damp-heat accumulation syndrome, damp-heat accumulation syndrome, and colorectal cancer, and functional enrichment analysis and signaling pathway enrichment analysis were carried out. Real-time polymerase chain reaction (Real-time PCR) was used to detect the effect of Shenbai Jiedu prescription on the expression of the above key differential genes. ResultBy comparing the damp-heat accumulation syndrome and non-damp-heat accumulation syndrome, a total of 384 differentially expressed genes were screened, of which 203 were up-regulated genes, and 181 were down-regulated genes. By comparing the colorectal adenoma of colorectal cancer and damp-heat accumulation syndrome, a total of 2 965 differentially expressed genes were screened, of which 2 460 were up-regulated genes, and 505 were down-regulated genes. The intersection of differentially expressed genes of the two groups was taken, and a total of 58 differentially expressed genes with the same changes were screened. The gene ontology functions were mainly enriched in UDP-galactose: β-N-acetylglucosamine beta-1,3-galactosyltransferase activity, N-acetyllactosaminide beta-1,3-N-acetylglucosaminyltransferase activity, and poly-N-acetyllactosamine biosynthetic process. Kyoto Encyclopedia of Genes and Genomes (KEGG) signaling pathways were mainly enriched in glycosphingolipid biosynthesis-globo and isoglobo series, glycosphingolipid biosynthesis-lacto and neolacto series, and IL-17 signaling pathway. Shenbai Jiedu prescription significantly inhibited the expression of key genes involved in the enrichment, such as FOSB and B3GALT5, in a dose-dependent manner (P<0.05). ConclusionGlycolipid metabolism may be the biological foundation of colorectal adenoma in damp-heat accumulation syndrome, and Shenbai Jiedu prescription may inhibit colorectal adenoma carcinogenesis by down-regulating the expression of FOSB and B3GALT5.
9.Research Progress of Traditional Chinese Medicine Compounds in Prevention and Treatment of Colorectal Adenoma: A Review
Meng SHEN ; Ye ZHANG ; Kai CHEN ; Yuquan TAO ; Minmin FAN ; Mingxin NI ; Liu LI ; Haibo CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(19):64-72
Colorectal adenoma is a benign tumor originating from the mucosal glandular epithelium of the colorectum and belongs to the category of intraepithelial neoplasia. Its etiology and pathogenesis are not completely clear, and some patients have genetic factors. In recent years, with the improvement in living standards, the incidence of colorectal adenoma has gradually increased due to high-fat diets, intestinal flora disorder, and emotional disturbance. As one of the precancerous lesions of colorectal cancer, colorectal adenoma is increasingly threatening human health. Surgical resection is the most direct and effective method for the treatment of colorectal adenoma, but some patients with colorectal adenoma have the possibility of recurrence after resection. At present, there is still a lack of effective prevention and treatment measures for the recurrence of colorectal adenoma. Traditional Chinese medicine (TCM) plays a unique advantage in improving the clinical symptoms of patients with colorectal adenoma and preventing postoperative recurrence and carcinogenesis. Therefore, this review summarized the clinical research and mechanism of TCM compounds in the prevention and treatment of colorectal adenoma in recent years. The clinical study on the prevention and treatment of colorectal adenoma by TCM compounds can be divided into internal treatment, external treatment, and internal and external combined treatment. The internal treatment mainly focuses on strengthening the spleen, and the external treatment includes retention enema, acupoint application, and other methods. The internal and external combined treatment is mainly based on the internal administration of TCM compounds combined with acupuncture, retention enema, and acupoint stimulation. The study on the mechanism of TCM compounds in preventing and treating colorectal adenoma was mainly explored from the aspects of regulating intestinal flora, regulating cell proliferation immune function, and achieving anti-inflammation. This review summarized the research progress of TCM compounds in the prevention and treatment of colorectal adenoma in recent years and provided a reference for future treatment with TCM.