1.Chiral Separation of Naphthylglycidic Ether Using Capillary Zone Electrophoresis
Rong XIAO ; Dan ZHANG ; Peigang DU ; Yueying LUO ; Xin ZHAO ; Yan LIU ; Qian ZHANG
Chinese Journal of Analytical Chemistry 2009;37(11):1695-1699
A capillary electrophoretic method was developed for the separation of enantiomers of naphthylgly-cidic ether(NGE). Several cyclodextrins(CDs) were applied as the chiral selectors and it was found that the ionic modified highly sulfated cyclodextrin(HS-β-CD) could give satisfactory enantioselectivity. In addition,the effects of the pH value of the buffer system,the concentration of the HS-β-CD,capillary temperature and the running voltage on the chiral separation were investigated systematically. The result showed that under the optimized conditions of pH 2. 5,20 mmol/L H_3PO_4-triethanolamine buffer containing 2% highly sulfated cyclodextrin ( HS-β-CD) at capillary temperature 20℃ in the reversed polarity voltage of - 18 kV,the enantiomers of naphthylglycidic ether were baseline separated. This method is simple,precise and can be applied to the chiral separation of naphthylglycidic ether enantiomers and determination of enantiomers excess(ee,% ).
2.Construction of evaluation index system of core competence of specialized gynecological nurses
Yan HU ; Fulan WANG ; Yueying LUO ; Li WANG
Chinese Journal of Practical Nursing 2023;39(22):1689-1695
Objective:To construct the evaluation index system of core competence of specialized gynecological nurses, and to provide reference for the curriculum setting and effect evaluation of standardized training for specialized gynecological nurses.Methods:The draft evaluation index system was prepared through literature research and group discussion. From May to June 2021, two rounds of Delphi letter consultation was used among 18 experts, to complete the selection and modification of evaluation index, and to determine the index weight.Results:The effective response rate of the two rounds of Delphi expert consultation was 100%, the expert authority coefficient was 0.938, and the Kendall harmony coefficient of the two rounds of expert letter consultation was 0.117 and 0.304, respectively (both P<0.01). Finally, the evaluation index system of core competence of specialized gynecological nurses was formed, including 4 first-level indexes, 11 second-level indexes and 48 third-level indexes. Conclusions:The evaluation index system of core competence of specialized gynecological nurses established in this study is scientific and reliable, which can provide reference for the curriculum setting and effect evaluation of standardized training for specialized gynecological nurses.
3.Study of resting-state functional MRI on immediate effect regulated by acupuncture on acupoints in patients with migraine without aura
Ya'nan ZHANG ; Ni LIU ; Mengmeng REN ; Yueying HONG ; Jianrui ZHANG ; Lei ZHANG ; Xuanzhi LUO ; Huilin LIU ; Jianwei HUO ; Fang HAN
Journal of Practical Radiology 2024;40(1):11-14
Objective To explore the mechanism of immediate effect regulated by acupuncture on acupoints in patients with migraine without aura(MwoA)during the interictal period.Methods A total of 28 MwoA patients were enrolled and resting-state functional magnetic resonance imaging(rs-fMRI)were performed at baseline and after acupuncture for 30 minutes.Paired t test was used to compare the differences of regional homogeneity(ReHo)and voxel-mirrored homotopic connectivity(VMHC)between two groups.Additionally,the correlation between the changes of rs-fMRI indexes and clinical scores was analyzed.Results In MwoA patients after acupuncture for 30 minutes,the mean regional homogeneity(mReHo)was decreased in the right lingual gyrus and right cere-bellum and was increased in the right middle frontal gyrus,while the z transformation voxel-mirrored homotopic connectivity(zVMHC)was significantly decreased in the bilateral cuneus compared with baseline.There was no significant correlation between imaging data and clinical scales.Conclusion Patients with MwoA after acupuncture for 30 minutes show abnormal ReHo and VMHC in multiple brain regions,which suggest that the mechanism of immediate effect may act through regulating pain-related brain regions.
4.Role of Intestinal Tight Junction in Ulcerative Colitis and Traditional Chinese Medicine Treatment: A Review
Jinxin WANG ; Sheng XIE ; Maoguang HUANG ; Feng LUO ; Yueying CHEN ; Liqun LI
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(15):249-255
Ulcerative colitis (UC), a disease that affects the colon or rectum, is characterized by long-term recurrent inflammation and eventually leads to ulcers in the inner wall of the intestine. The disease has a high incidence and is difficult to be cured, which causes severe physical and mental discomfort and economic burden to the patients. Therefore, it is urgent to develop new therapies with high cure rate and low side effect. The pathological mechanism of UC is complex and involves multiple factors. The intestinal mucosal barrier damage is the main pathological basis of UC, which is a hot topic and a new research direction. Intestinal tight junction (TJ), as the structural basis of the intestinal mucosal mechanical barrier, can actively regulate mucosal function and play a key role in the pathogenesis of UC. Traditional Chinese medicine (TCM) can regulate TJ protein via multiple pathways and multiple targets, repair the intestinal mucosal barrier, and thus block the progression of UC. Studies have demonstrated that Chinese herbal medicines and their components, Chinese medicine compound prescriptions, and Chinese medicine preparations can treat UC by regulating TJ protein to maintain the function and reduce the permeability of intestinal epithelium, providing a new therapeutic strategy for UC. Although TCM has unique advantages that western medicine cannot replace by mediating TJ protein expression in UC, a comprehensive review of this field remains to be carried out. Focusing on the status of UC and TCM syndrome differentiation and treatment, we retrieved relevant articles with ''ulcerative colitis'', ''tight junction'', and ''Chinese medicine'' as the keywords, and summarized the relationship of TJ and its key target proteins with UC to clarify the critical role of TJ in UC pathophysiology. Furthermore, we summarized the Chinese medicines regulating TJ in the treatment of UC in recent years, aiming to provide a theoretical basis for the development of drugs for this disease.
5.Traditional Chinese Medicine Intervention in Ulcerative Colitis via NLRP3-Mediated Pyroptosis Pathway: A Review
Jinxin WANG ; Liqun LI ; Xiaoyan HUANG ; Maoguang HUANG ; Feng LUO ; Yueying CHEN ; Sheng XIE
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(9):274-282
Ulcerative colitis (UC) mainly occurs in the colon and rectum, with complex pathological mechanism. The occurrence of ulcerative colitis is associated with the uncontrollable inflammatory response of the intestine. The Western medicine therapy of UC mainly uses glucocorticoids and immunosuppressants to reduce intestinal inflammation. While blocking the progress of UC to a certain extent, it causes severe adverse reactions. More and more studies have confirmed that traditional Chinese medicine (TCM) has obvious advantages in the prevention and treatment of UC and can significantly reduce the recurrence of the disease. Pyroptosis, a novel form of cell death, can destroy cell structure, release intracellular pro-inflammatory substances, and mediate intestinal immune response in UC. TCM can promote pyroptosis (removing excess) or inhibit pyroptosis (replenishing deficiency), which is consistent with the regulation of Yin and Yang. TCM plays a role in the treatment of UC mainly by inhibiting pyroptosis (replenishing deficiency) and reducing intestinal immune response. In recent years, a large number of studies have been carried out to decipher the mechanism of TCM in the treatment of UC via NOD-like receptor protein domain 3 (NLRP3)-mediated pyroptosis pathway. The results have demonstrated that NLRP3 pathway is the key target of TCM in the treatment of UC. However, a comprehensive summary remains to be carried out on the inhibition of NLRP3-mediated pyroptosis pathway by TCM in the treatment of UC. Therefore, we retrieved the articles in this field in recent years with the keywords "pyroptosis", "NLRP3", "ulcerative colitis", and "Chinese medicine". The Chinese medicines regulating NLRP3 pathway mainly have the functions of clearing heat and drying dampness, harmonizing Qi and blood, moving Qi and dredging fu-organs, and invigorating spleen and removing dampness. The findings can help researchers to fully understand the mechanism of TCM in the treatment of UC via the NLRP3 pathway and provide a theoretical basis for the treatment of UC and further drug development.
6.Effect of Intestinal Tight Junction in Diarrhea-predominant Irritable Bowel Syndrome and Traditional Chinese Medicine Intervention: A Review
Jinxin WANG ; Sheng XIE ; Maoguang HUANG ; Feng LUO ; Yueying CHEN ; Yuling LI ; Liqun LI
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(2):253-259
Diarrhea-predominant irritable bowel syndrome (IBS-D) is a chronic intestinal disease characterized by abdominal pain and increased water content in stool. The pathological mechanism of this disease is complex and attributed to many factors, where the impairment of intestinal mucosal barrier is pivotal in the pathogenesis of IBS-D. The intercellular tight junction (TJ)in intestinal mucosa is mainly composed of Occludin,Claudins, and zonula occludens (ZOs),which is an important component of mechanical barrier and can significantly affect mucosal function. Since modern medicine holds that the pathogenesis of this disease is not fully revealed,symptomatic treatment is the first choice in clinical practice even though the outcomes are not satisfactory. According to traditional Chinese medicine (TCM),the epithelial barrier function in intestinal mucosa corresponds to the TCM theory of "the spleen acts as the guard". Many studies have reported that the active components of Chinese medicine and compound prescriptions can restore the intestinal epithelial barrier function of IBS-D rats by regulating TJ protein,reduce its permeability, and inhibit intestinal water and electrolyte exudation,thereby improving symptoms. This study reviewed the relationship of IBS-D with TJ and its key target proteins to clarify the key role of TJ in the pathophysiology of IBS-D and summarized the TCM treatment of IBS-D through the target regulation of TJ, with the purpose to provide a theoretical basis for the treatment of IBS-D and further drug development.
7.Chinese Medicine in Treatment of Ulcerative Colitis by Regulating Intestinal Flora: A Review
Maoguang HUANG ; Sheng XIE ; Jinxin WANG ; Feng LUO ; Yunyan ZHANG ; Yueying CHEN ; Xiaoyan HUANG ; Liqun LI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(2):267-275
Ulcerative colitis (UC) is a chronic, non-specific inflammatory bowel disease. The pathogenesis of this disease is complex and is attributed to multiple factors. Intestinal mucosal barrier damage is the basic pathological change of UC, and intestinal flora disorder is one of the important characteristics of UC. Intestinal flora plays a key role in the pathological process of UC by regulating intestinal mucosal immunity and inflammatory response to repair the damaged intestinal mucosal barrier. At present, western medicine has the advantages of rapid action onset and significant short-term efficacy, but the curative effect of long-term use is not good, accompanied by many adverse reactions, causing great physical and mental pain to patients. Therefore, it is urgent to explore new treatment methods with definite long-term efficacy and mild adverse reactions. A large number of studies have shown that Chinese medicine can regulate intestinal flora through multiple targets in an all-around way, restore the homeostasis of the flora, and repair the damaged intestinal mucosal barrier, thereby inhibiting the progression of UC. Numerous studies have shown that the active components, monomers, and compounds of Chinese medicine can effectively antagonize UC by regulating the intestinal flora to improve the intestinal mucosal immunity, reduce the inflammatory response of the intestinal mucosa, and restore the normal physiological function of the intestinal mucosal barrier, providing a new strategy for UC prevention and treatment. Although there are some studies of the regulation of intestinal flora by Chinese medicine to prevent and treat UC, those studies have the shortcomings of systematic and comprehensive inadequacy. Therefore, based on the research status of UC, intestinal flora, and Chinese medicine treatment, this study reviewed the relationship between intestinal flora and UC and clarified the key role of intestinal flora in the occurrence and development of UC. At the same time, this paper comprehensively summarized the Chinese medicine that targeted the regulation of intestinal flora for the treatment of UC in the past five years to provide new strategies and ideas for UC treatment.
8.Chinese Medicine Polysaccharides Induce Apoptosis of Gastric Cancer Cells: A Review
Jinxin WANG ; Liqun LI ; Maoguang HUANG ; Feng LUO ; Yueying CHEN ; Junling ZHANG ; Yiyi HE ; Shengnan CAI ; Sheng XIE
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(24):202-209
Gastric cancer (GC) is a digestive tract tumor that occurs in the epithelial tissues of the gastric mucosa, seriously affecting the life and health of patients, and its mortality rate ranks the third among malignancies. Although medical technology has made great progress in recent years, the progression of GC still cannot be effectively controlled by surgery, chemotherapy, and targeted therapy. The pathogenesis of GC is extremely complex and is closely related to the tumor microenvironment, chronic inflammation, and immune escape, among which the reduction of tumor cell apoptosis is one of the important mechanisms for the occurrence and development of GC. Apoptosis refers to the process of spontaneous termination of cell life caused by genes under specific physiological or pathological conditions, which is of great significance for maintaining the stability of the internal environment. Researchers have found that in the GC state, mitochondrial endogenous apoptosis, endoplasmic reticulum stress, external death receptors, and other apoptosis pathways are regulated by multiple signaling pathways and genes, which together lead to the decline of GC cell apoptosis rate and thus promote the progression of GC. Chinese medicine is advantageous and characterized by multiple components, multiple targets, synergistic effect, and few adverse reactions. A large number of studies have shown that polysaccharide components, as effective components of Chinese medicine, have biological activities such as cancer inhibition, blood sugar control, anti-inflammation, antioxidant damage, and anti-virus, and can effectively inhibit the deterioration of GC by inducing cell apoptosis, gradually becoming a hot spot in GC drug research and development. However, systematic reviews on the apoptosis of GC induced by Chinese medicine polysaccharides are rarely reported. Therefore, this paper analyzed and summarized the studies of Chinese medicine polysaccharides in promoting apoptosis and interfering with GC, in order to provide a theoretical basis for the basic research, new drug development, and clinical application of Chinese medicine polysaccharides in the intervention of GC.
9.Role of Autophagy in Ulcerative Colitis and Chinese Medicine Intervention: A Review
Maoguang HUANG ; Sheng XIE ; Jinxin WANG ; Feng LUO ; Yunyan ZHANG ; Yueying CHEN ; Shengnan CAI ; Xiaoyan HUANG ; Liqun LI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(4):281-289
Ulcerative colitis (UC) is a chronic inflammatory bowel disease with complex etiology. The pathogenesis of this disease, due to a combination of factors, is complex and has not yet been elucidated. Among them, intestinal mucosal barrier damage is the basic pathological change of UC. As a non-destructive response of cells, autophagy regulates intestinal mucosal immunity, inflammation, oxidative stress, and bacterial homeostasis through degradation and reabsorption to actively repair damaged intestinal mucosal barrier, exerting a key role in the occurrence and development of UC. The disease is mainly treated clinically with aminosalicylic acid preparations, glucocorticoids, and immunosuppressants. Western medicine treatment of the disease has a fast onset of effect, and the short-term efficacy is definite, but the long-term application is easy to be accompanied by more adverse reactions. Moreover, some drugs are expensive, bringing great physical and mental pain and economic burden to patients. Therefore, it is urgent to explore new therapies with stable efficacy and mild adverse effects. In recent years, a large number of studies have shown that Chinese medicine can regulate autophagy of the intestinal mucosa with multiple targets and effects and repair the intestinal mucosal barrier function, thereby inhibiting the development of UC. Many experiments have shown that the active ingredient or monomers and compound formulas of Chinese medicine can improve the immunity of the intestinal mucosa, inflammation, oxidative stress, and flora by regulating the level of autophagy to maintain the normal function of the intestinal mucosal barrier to effectively intervene in UC, providing a new measure for the prevention and treatment of UC. However, there is a lack of systematic review of Chinese medicine in regulating the level of autophagy in the intestinal mucosa for the prevention and treatment of UC. Therefore, based on the current research on UC, autophagy process, and Chinese medicine treatment, this article reviewed the relationship of autophagy and its key target proteins with UC to clarify the key role of autophagy in UC production and systematically summarized Chinese medicines targeting the regulation of autophagy to treat UC in recent years to provide new ideas for the treatment and drug development of UC.
10.Traditional Chinese Medicine Intervention in Ulcerative Colitis Based on JAK/STAT Pathway: A Review
Jinxin WANG ; Sheng XIE ; Liqun LI ; Xiaoyan HUANG ; Maoguang HUANG ; Feng LUO ; Yueying CHEN ; Jinjing TAN
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(24):274-282
Ulcerative colitis(UC)is a disease characterized by chronic persistent inflammation of the colorectal mucosa. Its complex pathological mechanism is related to immune inflammation and enhanced apoptotic activity. The Janus kinase(JAK)/signal transducer and activator of transcription(STAT)is an important regulatory pathway in the body's physiological function, which can regulate the release of intestinal pro-inflammatory factors and induce apoptosis, resulting in colon tissue damage. In the condition of UC, the biological activities and expression levels of JAK and STAT increased, and the tissue inflammatory response and apoptosis rate increased, which led to the destruction of intestinal mucosal tissues. At present, in the treatment of UC, glucocorticoids and immunosuppressants are mainly employed to reduce intestinal inflammation. Although they can block the progress of UC to some extent, the adverse reactions are severe. A large number of studies have shown that traditional Chinese medicine(TCM) has significant advantages in the prevention and treatment of UC and can significantly reduce the recurrence rate of this disease. In recent years, plenty of studies have been carried out to explore the role of TCM in the treatment of UC by regulating the JAK/STAT pathway. The results have shown that the JAK/STAT pathway is the key target pathway of TCM in the treatment of UC. Based on the etiology and pathogenesis of deficiency and excess, TCM regulates the JAK/STAT pathway by clearing heat, drying dampness, cooling and activating blood, invigorating the spleen, warming the kidney, and performing both tonification and elimination to maintain the balance between pro-inflammatory factors and anti-inflammatory factors, weaken colonic inflammatory response, inhibit apoptosis, and play a role in the treatment of UC. The present study analyzed the mechanism and effect of TCM in intervening in UC by targeting the JAK/STAT signaling pathway and summarized the molecular mechanisms of different cytokines such as interleukin-6(IL-6), IL-10, IL-23, microRNA(miRNA)-146a, and suppressors of cytokine signaling 2/3(SOCS2/3) on many family subtypes of the JAK/STAT signaling pathway to facilitate the comprehensive understanding of researchers on the mechanism of TCM on the JAK/STAT pathway in UC, which is expected to provide a theoretical basis for the treatment of UC and further drug development.