1.Enzyme-directed Immobilization Strategies for Biosensor Applications
Xing-Bao WANG ; Yao-Hong MA ; Yun-Long XUE ; Xiao-Zhen HUANG ; Yue SHAO ; Yi YU ; Bing-Lian WANG ; Qing-Ai LIU ; Li-He ZHANG ; Wei-Li GONG
Progress in Biochemistry and Biophysics 2025;52(2):374-394
Immobilized enzyme-based enzyme electrode biosensors, characterized by high sensitivity and efficiency, strong specificity, and compact size, demonstrate broad application prospects in life science research, disease diagnosis and monitoring, etc. Immobilization of enzyme is a critical step in determining the performance (stability, sensitivity, and reproducibility) of the biosensors. Random immobilization (physical adsorption, covalent cross-linking, etc.) can easily bring about problems, such as decreased enzyme activity and relatively unstable immobilization. Whereas, directional immobilization utilizing amino acid residue mutation, affinity peptide fusion, or nucleotide-specific binding to restrict the orientation of the enzymes provides new possibilities to solve the problems caused by random immobilization. In this paper, the principles, advantages and disadvantages and the application progress of enzyme electrode biosensors of different directional immobilization strategies for enzyme molecular sensing elements by specific amino acids (lysine, histidine, cysteine, unnatural amino acid) with functional groups introduced based on site-specific mutation, affinity peptides (gold binding peptides, carbon binding peptides, carbohydrate binding domains) fused through genetic engineering, and specific binding between nucleotides and target enzymes (proteins) were reviewed, and the application fields, advantages and limitations of various immobilized enzyme interface characterization techniques were discussed, hoping to provide theoretical and technical guidance for the creation of high-performance enzyme sensing elements and the manufacture of enzyme electrode sensors.
2.Research progress of nano drug delivery system based on metal-polyphenol network for the diagnosis and treatment of inflammatory diseases
Meng-jie ZHAO ; Xia-li ZHU ; Yi-jing LI ; Zi-ang WANG ; Yun-long ZHAO ; Gao-jian WEI ; Yu CHEN ; Sheng-nan HUANG
Acta Pharmaceutica Sinica 2025;60(2):323-336
Inflammatory diseases (IDs) are a general term of diseases characterized by chronic inflammation as the primary pathogenetic mechanism, which seriously affect the quality of patient′s life and cause significant social and medical burden. Current drugs for IDs include nonsteroidal anti-inflammatory drugs, corticosteroids, immunomodulators, biologics, and antioxidants, but these drugs may cause gastrointestinal side effects, induce or worsen infections, and cause non-response or intolerance. Given the outstanding performance of metal polyphenol network (MPN) in the fields of drug delivery, biomedical imaging, and catalytic therapy, its application in the diagnosis and treatment of IDs has attracted much attention and significant progress has been made. In this paper, we first provide an overview of the types of IDs and their generating mechanisms, then sort out and summarize the different forms of MPN in recent years, and finally discuss in detail the characteristics of MPN and their latest research progress in the diagnosis and treatment of IDs. This research may provide useful references for scientific research and clinical practice in the related fields.
3.Experts consensus on standard items of the cohort construction and quality control of temporomandibular joint diseases (2024)
Min HU ; Chi YANG ; Huawei LIU ; Haixia LU ; Chen YAO ; Qiufei XIE ; Yongjin CHEN ; Kaiyuan FU ; Bing FANG ; Songsong ZHU ; Qing ZHOU ; Zhiye CHEN ; Yaomin ZHU ; Qingbin ZHANG ; Ying YAN ; Xing LONG ; Zhiyong LI ; Yehua GAN ; Shibin YU ; Yuxing BAI ; Yi ZHANG ; Yanyi WANG ; Jie LEI ; Yong CHENG ; Changkui LIU ; Ye CAO ; Dongmei HE ; Ning WEN ; Shanyong ZHANG ; Minjie CHEN ; Guoliang JIAO ; Xinhua LIU ; Hua JIANG ; Yang HE ; Pei SHEN ; Haitao HUANG ; Yongfeng LI ; Jisi ZHENG ; Jing GUO ; Lisheng ZHAO ; Laiqing XU
Chinese Journal of Stomatology 2024;59(10):977-987
Temporomandibular joint (TMJ) diseases are common clinical conditions. The number of patients with TMJ diseases is large, and the etiology, epidemiology, disease spectrum, and treatment of the disease remain controversial and unknown. To understand and master the current situation of the occurrence, development and prevention of TMJ diseases, as well as to identify the patterns in etiology, incidence, drug sensitivity, and prognosis is crucial for alleviating patients′suffering.This will facilitate in-depth medical research, effective disease prevention measures, and the formulation of corresponding health policies. Cohort construction and research has an irreplaceable role in precise disease prevention and significant improvement in diagnosis and treatment levels. Large-scale cohort studies are needed to explore the relationship between potential risk factors and outcomes of TMJ diseases, and to observe disease prognoses through long-term follw-ups. The consensus aims to establish a standard conceptual frame work for a cohort study on patients with TMJ disease while providing ideas for cohort data standards to this condition. TMJ disease cohort data consists of both common data standards applicable to all specific disease cohorts as well as disease-specific data standards. Common data were available for each specific disease cohort. By integrating different cohort research resources, standard problems or study variables can be unified. Long-term follow-up can be performed using consistent definitions and criteria across different projects for better core data collection. It is hoped that this consensus will be facilitate the development cohort studies of TMJ diseases.
4.Based on supramolecular chemistry to explore the scientific connotation of predecocting gypsum in Maxingshigan decoction preliminarily
Yao-zhi ZHANG ; Shu-chang YAO ; Lu-ping YANG ; Yi-hang ZHAO ; An-qi XU ; Xue-mei HUANG ; Peng-long WANG
Acta Pharmaceutica Sinica 2024;59(6):1828-1840
It has gradually become a consensus in the industry that the traditional Chinese medicine gypsum should be decocted first, but the understanding of decocting method is not completely unified in the works of doctors since ancient times, and there are occasional disputes about whether it is necessary to decocting first. In this study, the phase determination, physical and chemical characterization, qualitative and quantitative analysis of inorganic and organic components of the decoctions of herbal pairs and the whole prescription Maxingshigan decoction with gypsum as the center, and the pre-decoctions and co-decoctions of them were carried out to explore the scientific connotation of the pre-decoctions of gypsum. Results show that decoction phases were different between the co-decoctions and pre-decoctions of licorice-gypsum (Gancao-Shigao, GC-SG), ephedra-gypsum (Mahuang-Shigao, MH-SG) and almond-gypsum (Xingren-Shigao, XR-SG). The results of the micromorphology, particle size and zeta potential of herbal pairs and prescription (Quanfang, QF) showed that the supramolecular particles in pre-decoctions were smaller, more uniform and more stable than the co-decoctions. The results of organic components analysis showed that different cooking methods did not change the organic composition and content. ICP-OES results showed that the content of inorganic components in pre-decoctions was higher than in co-decoctions for the same boiling time of gypsum. The IR results showed that the pre-decoctions had stronger chemical functional group effect than the co-decoctions. To sum up, compared with the co-decoction, the pre-decoction of gypsum has different phase state and chemical composition interaction, and the difference of inorganic composition is an important material basis affecting the change of phase state compared with the co-decoction. It indicates that the material basis of traditional Chinese medicine decoction is indeed different whether gypsum is decocted first or not, which can provide a basis for the clinical application of decocted gypsum.
5.Research progress on carrier-free and carrier-supported supramolecular nanosystems of traditional Chinese medicine anti-tumor star molecules
Zi-ye ZANG ; Yao-zhi ZHANG ; Yi-hang ZHAO ; Xin-ru TAN ; Ji-chang WEI ; An-qi XU ; Hong-fei DUAN ; Hong-yan ZHANG ; Peng-long WANG ; Xue-mei HUANG ; Hai-min LEI
Acta Pharmaceutica Sinica 2024;59(4):908-917
Anti-tumor traditional Chinese medicine has a long history of clinic application, in which the star molecules have always been the hotspot of modern drug research, but they are limited by the solubility, stability, targeting, bioactivity or toxicity of the monomer components of traditional Chinese medicine anti-tumor star molecules and other pharmacokinetic problems, which hinders the traditional Chinese medicine anti-tumor star molecules for further clinical translation and application. Currently, the nanosystems prepared by supramolecular technologies such as molecular self-assembly and nanomaterial encapsulation have broader application prospects in improving the anti-tumor effect of active components of traditional Chinese medicine, which has attracted extensive attention from scholars at home and abroad. In this paper, we systematically review the research progress in preparation of supramolecular nano-systems from anti-tumor star molecule of traditional Chinese medicine, and summarize the two major categories and ten small classes of carrier-free and carrier-based supramolecular nanosystems and their research cases, and the future development direction is put forward. The purpose of this paper is to provide reference for the research and clinical transformation of using supramolecular technology to improve the clinical application of anti-tumor star molecule of traditional Chinese medicine.
6.Study on the clinical effect of meridian massage in the treatment of lumbar disc herniation
Sheng-Hua HE ; Huang-Sheng TAN ; Yong HUANG ; Hua-Long FENG ; Zhi-Ming LAN ; Yuan-Fei FU ; Yong JIANG ; Ju-Yi LAI
China Journal of Orthopaedics and Traumatology 2024;37(10):991-996
Objective To observe the clinical efficacy of meridian massage in the treatment of lumbar disc herniation(LDH).Methods Between July 2020 and April 2023,82 patients with lumbar disc herniation were selected,including 58 males and 24 females,aged from 23 to 55 years old with an average of(43.76±6.64)years old.According to the different treatment methods,they were divided into observation group and control group with 41 cases in each group.The control group was treated with routine treatment,and the observation group was treated with meridian massage on the basis of routine treatment.In the control group,there were 30 males and 11 females;aged from 22 to 52 years old with an average of(42.27±9.34)years old;the Body mass index(BMI)ranged from 19 to 28 kg·m-2 with an average of(23.82±1.08)kg·m-2;the course of disease ranged from 0.5 to 3.0 years(2.40±0.48)years.There were 28 cases in L4,5 segment and 13 cases in L5S1 segment.In the observation group,there were 28 males and 13 females;the age ranged from 19 to 54 years old(42.19±9.26)years old;the BMI ranged from 18 to 29 kg·m-2 with an average of(23.73±1.15)kg·m-2;the course of disease ranged from 0.6 to 2.8 with an average of(2.56±0.45)years;there were 26 cases in L4,5 segment and 15 cases in L5S1 segment.Visual analogue scale(VAS),Oswestry disability index(ODI),M-JOA score and TCM syndrome score were measured before and after 3 courses of treatment,and the clinical efficacy was evaluated by the standard of curative effect evaluation.Results After treatment,VAS[(3.24±1.45)vs(4.46±0.64)],ODI[(11.45±1.98)%vs(17.21±2.74)%]and TCM symptom score[(2.03±0.27)vs(3.99±0.54)]of the observation group were lower than those of the control group.The score of M-JOA[(23.43±2.61)vs(19.37±1.62)]increased(P<0.05).The scores of VAS,ODI andTCM symptoms in the observation group were lower than those in the control group,while the scores of M-JOA were higher than those in the control group(P<0.05).Conclusion Meridian massage is effective in the treatment of LDH,which can effectivelyrelieve low back pain,improve clinical symptoms and increaselumbar function,which is worthy of clinical promotion.
7.Integrative nursing experience of a case with chronic refractory wound formation caused by drug extravasation
Yuanyuan ZHANG ; Xiuhong LONG ; Chan LU ; Xian LI ; Yi WANG ; Lanying HUANG ; Huiqiong TU ; Huijuan QIN
Chinese Journal of Nursing 2024;59(7):808-811
To sum up integrative nursing experience of a case with chronic refractory wound formation caused by drug extravasation.The essentials of integrative nursing are:structured nursing intervention of"assessment-management-treatment"based on the Triangle of Wound Assessment;determination of the timing for integrative nursing according to the theory of TCM sores and ulcers;implementation of copper board scraping method to promote circulation of qi and blood;use of Huo-long Comprehensive Moxibustion Therapy to promote muscle regeneration.With the help of the cooperation of the multidisciplinary specialist nursing team,the wound was completely healed after 59 days of integrated traditional Chinese and Western medicine nursing interventions.
8.Study on bioequivalence evaluation of Pemirolast potassium tablets in Chinese healthy volunteers on an empty stomach/after meals
Yi-Ming MA ; Wang HU ; Feng ZHANG ; Wen ZHANG ; Sheng-Long ZHAO ; Yang CAO ; Jing XIE ; Huan ZHOU ; Shun-Wang HUANG
Chinese Pharmacological Bulletin 2024;40(6):1075-1081
Aim To compare the pharmacokinetics of pemirolast potassium tablets in healthy subjects in Chi-na under single fasting and postprandial conditions,and to evaluate the bioequivalence of the test prepara-tion(T)and the reference preparation(R).Methods A randomized,open-ended,single-dose,two-cycle,double-cross bioequivalence trial design was adopted,and 26 and 30 subjects were enrolled in the fasting group and the postprandial group,respectively,and 10 mg of the test preparation and the reference preparation were taken in the fasting or postprandial state each cy-cle,and venous blood was collected at the designed time points before and after the administration cycle.The concentration of pemirolast potassium in plasma was determined by LC-MS/MS method,and the phar-macokinetic parameters were calculated with PhoenixTM WinNonlin ?(8.3)software,and the bioequivalence analysis of the two preparations was performed.Re-sults The t1/2 of the test preparation and the reference preparation was(4.44±0.91)h and(4.49±0.93)h,respectively;the median tmax was(1.96±1.29)h and(2.18±1.25)h,respectively;the Cmax was(867.12±205.56)μg·L-1 and(863.35±172.03)μg·L-1,respectively;the AUC0-t was(5 513.23±1463.67)h·μg·L-1 and(5 661.32±1 628.65)h·μg·L-1,respectively;AUC0_∞ was(5 699.81±1477.68)h·μg·L-1 and(5 849.44±1 644.75)h·μg·L-1,respectively.The statistical results of the 90%confidence intervals of the main pharmacokinetic parameters Cmax,AUC0-t,and AUC0-∞ was 92.49%~107.53%,94.71%~100.67%and 95.28%~100.27%,respectively,all of which were within the range of 80.00%~125.00%,and the safety of the tested preparation and the reference preparation was good when taken orally on an empty stomach.The t1/2 of single oral administration after prandial administra-tion of the tested preparation and the reference prepara-tion was(4.46±0.78)and(4.51±0.84)h,respec-tively;the median tmax was(3.08±1.36)h and(3.28±1.28)h,respectively;the Cmax was(683.83±111.87)μg·L-1 and(689.77±110.24)μg·L-1,respectively;the AUC0-t was(5 695.99±1566.05)h·μg·L-1 and(5 773.60±1 551.04)h·μg·L-1,respectively;the AUC0-∞ was(5 914.06±1 551.86)h·μg·L-1 and(5 967.30±1552.89)h·μg·L-1,respectively.The 90%confi-dence interval of Cmax,AUC0-t,and AUC0-∞ was 93.56%~104.69%,96.43%~100.83%,and 97.29%~101.14%,respectively,which was in the range of 80.00%~125.00%,and the safety of the tested preparation and the reference preparation was good after meals.Conclusion In the state of fasting and postprandial single oral administration,the two kinds of pemirolast potassium tablets have good bio-equivalence.
9.Oleanolic acid regulates Treg/Th17 cell imbalance in allergic rhinitis by inhibiting autophagy
Li WANG ; Yongyang HUANG ; Yi ZHANG ; Bin QI ; Long WAN ; Yanping DU ; Caisheng CHEN
Chinese Journal of Immunology 2024;40(7):1399-1404
Objective:To explore effect of oleanolic acid on allergic rhinitis(AR)and its potential mechanism.Methods:Peripheral blood mononuclear cells(PBMCs)were isolated by density gradient centrifugation.Real-time quantitative PCR was used to detect expressions of Foxp3,IL-17A,Beclin1,and RORγt mRNA in nasal mucosa;flow cytometry was employed to assess proportion of Treg and Th17 cells in PBMCs;Western blot was utilized to determine expressions of RORγt,LC3-Ⅰ,LC3-Ⅱ,Beclin1,and P62 proteins in nasal mucosal.Mice were randomly divided into Control,ovalbumin(OVA),L-oleanolic acid,H-oleanolic acid,DSGC,3-MA and H-oleanolic acid+Rapa groups.Histological changes were observed by HE staining and Periodate Schiff(PAS)staining.Serological changes,expressions of IL-17A,IL-10,eosinophilic cationic protein(ECP)and anti-OVA-specific antibodies were detected by ELISA.Results:AR patients had Th17/Treg imbalance and activated autophagy.Oleanolic acid restored Th17/Treg balance and inhibited autophagy in vitro.In vivo experiments demonstrated that oleanolic acid inhibited OVA-induced allergic nasal symptoms and activation of autophagy pathway,which was same as regulation of 3-MA,while Rapa could weaken effects of high dose of oleanolic acid.Moreover,oleanolic acid reduced infiltration of different inflammatory cells of nasal lavage fluid,prevented damages to epithelial cells,and improved nasal mucosal thickness and mucus secretion.Oleanolic acid regulated balance of mouse Th17/Treg-associated cytokines expressions.Conclusion:Oleanolic acid can be used to treat AR,whose effect is realized through inhibiting autophagy to regulate Th17/Treg balance.
10.Clinical and genetic analysis of a patient with Neuronal intranuclear inclusion body disease characterized by cortical enhancement in the posterior brain region
Jibao WU ; Fengzhen HUANG ; Limei CAO ; Yi ZHANG ; Xiaojun LIU ; Jiangtao LONG ; Jiping YI ; Xiaoxi YAO
Chinese Journal of Medical Genetics 2024;41(8):953-956
Objective:To explore the clinical, imaging, and genetic characteristics of an adult patient with sporadic Neuronal intranuclear inclusion disease (NIID).Methods:A patient who had visited the First People′s Hospital of Chenzhou on August 6, 2023 was selected as the study subject. Results of clinical examination, neuroimaging, and genetic testing were retrospectively analyzed along with a literature review. The number of GGC trinucleotide repeats in the 5′-untranslated region of the NOTCH2NLC gene was determined by GC-PCR. Results:The patient had presented with episodic encephalopathy, with enhanced magnetic resonance imaging showing enhancement features of the posterior cerebral cortex during the period of acute episode. Genetic testing revealed an increased number of GGC repeats ( n = 97) in the 5′- untranslated region of the NOTCH2NLC gene, which confirmed the diagnosis of NIID. Conclusion:Clinical attention should be paid to the enhanced MRI findings of patients with adult-onset NIID, for whom posterior cortical enhancement may be characteristic manifestation during the acute phase of encephalopathy-like episode.

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