1.Terpene extract from the stem of Celastrus orbiculatus inhibits actin cytoskeleton remodelling in gastric cancer cells by regulating the protein interaction between PTBP1 and ACTN4
Chu ZEWEN ; Zhu MIAO ; Luo YUANYUAN ; Hu YAQI ; Feng XINYI ; Shen JIACHENG ; Wang HAIBO ; Sunagawa MASATAKA ; Liu YANQING
Journal of Pharmaceutical Analysis 2024;14(8):1158-1175
Adjuvant chemoradiotherapy,molecular targeted therapy,and immunotherapy are frequently employed to extend the survival of patients with advanced gastric cancer(GC).However,most of these treatments have toxic side effects,drug resistance,and limited improvements in survival and quality of life.Therefore,it is crucial to discover and develop new medications targeting GC that are highly effective and have minimal toxicity.In previous studies,the total terpene extract from the stem of Celastrus orbiculatus demonstrated anti-GC activity;however,the specific mechanism was unclear.Our research utilising co-immunoprecipitation-mass spectrometry(Co-IP-MS),polypyrimidine tract binding protein 1(ptbp1)clustered regularly interspaced short palindromic repeat-associated protein 9(Cas9)-knockout(KO)mouse model,tissue microarray,and functional experiments suggests that alpha actinin-4(ACTN4)could be a significant biomarker of GC.PTBP1 influences actin cytoskeleton restructuring in GC cells by interacting with ACTN4.Celastrus orbiculatus stem extract(COE)may directly target ACTN4 and affect the interaction between PTBP1 and ACTN4,thereby exerting anti-GC effects.
2.Effect of age factor on preoperative sedative potency of midazolam oral solution in pediatric patients with inguinal hernia undergoing high ligation of hernial sac
Zewen YANG ; Baojiang QIAO ; Wei HU ; Jianshe WANG ; Li ZHANG
Chinese Journal of Anesthesiology 2024;44(12):1460-1463
Objective:To evaluate the effect of age factor on preoperative sedative potency of midazolam oral solution in pediatric patients with inguinal hernia undergoing high ligation of the hernial sac.Methods:This was a prospective study. American Society of Anesthesiologists Physical Status classification I or Ⅱ pediatric patients of either sex with inguinal hernia, aged 1-6 yr, with preoperative Parental Separation Anxiety Scale score ≥3, undergoing elective laparoscopic high ligation of the hernia sac with general anesthesia, were divided into group A (1 yr ≤ age < 4 yr) and group B (4 yr ≤ age ≤ 6 yr) based on age. The trial was performed using a sequential method, with an initial midazolam oral solution set at 0.50 mg/kg. If the response was positive, the dose was increased by 0.05 mg/kg in the next patient, or conversely if negative, the dose was decreased by 0.05 mg/kg in the next patient. The child who preceded the one that exhibited a positive response served as the first case, and this process was repeated until 7 turning points were reached. A positive response was defined as a PSAS score of ≥3 measured at 30 min after oral administration of midazolam oral solution. The probit method was used to calculate the median-effective dose (ED 50) and 95% confidence interval ( CI) of midazolam oral solution for preoperative sedation in pediatric patients with inguinal hernia undergoing high ligation of the hernial sac in both groups. Results:A total of 49 children were ultimately included in this study, with 24 in group A and 25 in group B. The ED 50 of midazolam oral solution for preoperative sedation was 0.628 mg/kg (95% CI 0.614-0.643 mg/kg) in group A and 0.385 mg/kg (95% CI 0.361-0.412 mg/kg) in group B. The ED 50 was significantly higher in group A than in group B ( P≤0.05). Conclusions:The potency of midazolam oral solution for preoperative sedation in pediatric patients aged 4-6 yr is superior to that in pediatric patients aged 1-<4 yr with inguinal hernia undergoing high ligation of the hernial sac.
3.Effect of age factor on preoperative sedative potency of midazolam oral solution in pediatric patients with inguinal hernia undergoing high ligation of hernial sac
Zewen YANG ; Baojiang QIAO ; Wei HU ; Jianshe WANG ; Li ZHANG
Chinese Journal of Anesthesiology 2024;44(12):1460-1463
Objective:To evaluate the effect of age factor on preoperative sedative potency of midazolam oral solution in pediatric patients with inguinal hernia undergoing high ligation of the hernial sac.Methods:This was a prospective study. American Society of Anesthesiologists Physical Status classification I or Ⅱ pediatric patients of either sex with inguinal hernia, aged 1-6 yr, with preoperative Parental Separation Anxiety Scale score ≥3, undergoing elective laparoscopic high ligation of the hernia sac with general anesthesia, were divided into group A (1 yr ≤ age < 4 yr) and group B (4 yr ≤ age ≤ 6 yr) based on age. The trial was performed using a sequential method, with an initial midazolam oral solution set at 0.50 mg/kg. If the response was positive, the dose was increased by 0.05 mg/kg in the next patient, or conversely if negative, the dose was decreased by 0.05 mg/kg in the next patient. The child who preceded the one that exhibited a positive response served as the first case, and this process was repeated until 7 turning points were reached. A positive response was defined as a PSAS score of ≥3 measured at 30 min after oral administration of midazolam oral solution. The probit method was used to calculate the median-effective dose (ED 50) and 95% confidence interval ( CI) of midazolam oral solution for preoperative sedation in pediatric patients with inguinal hernia undergoing high ligation of the hernial sac in both groups. Results:A total of 49 children were ultimately included in this study, with 24 in group A and 25 in group B. The ED 50 of midazolam oral solution for preoperative sedation was 0.628 mg/kg (95% CI 0.614-0.643 mg/kg) in group A and 0.385 mg/kg (95% CI 0.361-0.412 mg/kg) in group B. The ED 50 was significantly higher in group A than in group B ( P≤0.05). Conclusions:The potency of midazolam oral solution for preoperative sedation in pediatric patients aged 4-6 yr is superior to that in pediatric patients aged 1-<4 yr with inguinal hernia undergoing high ligation of the hernial sac.
4.Prenatal nicotine exposure induced high sensitivity of hypothalamic-pituitary-adrenal axis in offspring rats under high fat diet
Xia HE ; Dan XU ; Juan LU ; Wanting DONG ; Zewen HU ; Hui WANG
Chinese Journal of Pharmacology and Toxicology 2017;31(1):80-86
OBJECTIVE To observe prenatal nicotine exposure (PNE) induced high sensitivity of hypo?thalamic-pituitary-adrenal (HPA) axis in offspring rats which were fed with a high-fat diet, and to explore the mechanism. METHODS Nicotine (2 mg·kg-1 per day) was injected subcutaneously to preg?nant Wistar rats from gestational day (GD) 9 to GD20,and then the young rats were naturally delivered. After weaning, half of the offspring was fed with a high-fat diet until postnatal weeks (PW) 20. The others were exposed to unpredictable chronic stress (UCS) from PW17 to PW20. The pathological changes in the hippocampus were analyzed by HE staining. The blood concentration of adrenocorticotropic hormone (ACTH) and corticosterone (CORT) was detected by RIA kits and ELISA kits, respectively. Meanwhile, real-time PCR was used to detect the mRNA expression of ACTH releasing hormone (CRH), arginine vasopressin (AVP), vesicular glutamate transporter 2 (VGluT2), glutamic acid decarboxylase 65 (GAD65), mineralocorticoid receptor (MR),glucocorticoid receptor (GR) and glutamic acid decarboxylase 67 (GAD67). RESULTS In the normal control group,UCS treatment increased the level of serum ACTH and CORT 1.96 and 3.24 times in female rats,but 1.63 and 3.54 times in male rats. In the PNE group, UCS treatment increased the level of serum ACTH and CORT 3.96 and 5.98 times in female rats, but 3.04 and 5.22 times male rats. PNE increased the mRNA expression of AVP in the female and male rats 2.04 and 1.13 times in UCS treatment control group, and the mRNA expression of hypothalamus CRH and the ratio of VGLuT2/ GAD65 were increased 2.49 and 1.14 times in female rats, respectively. Furthermore, the nicotine group exhibited histological changes to different degrees in the hippocampus and dentate gyrus area of the hippocampus. In the female and male nicotine groups, the mRNA ratio of hippocampal MR/GR decreased by 88.0% and 86.0% in comparison with the normal control group without UCS, and the mRNA expression of GAD67 was enhanced 1.38 and 1.97 times in female and male rats without UCS. In the female UCS treatment nicotine groups, the mRNA expression of GAD67 was increased 2.17 times compared with the UCS treatment control group. CONCLUSION PNE can induce a high sensibility of HPA axis in offspring rats fed with a high-fat diet. The imbalance of hippo?campus MR/GR and the enhanced expression of GAD67 mRNA may be involved.

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