1.Development of an Analytical Software for Forensic Proteomic SAP Typing
Feng HU ; Meng-Jiao WANG ; Jia-Lei WU ; Dong-Sheng DING ; Zhi-Yuan YANG ; An-Quan JI ; Lei FENG ; Jian YE
Progress in Biochemistry and Biophysics 2025;52(9):2406-2416
ObjectiveThe proteome of biological evidence contains rich genetic information, namely single amino acid polymorphisms (SAPs) in protein sequences. However, due to the lack of efficient and convenient analysis tools, the application of SAP in public security still faces many challenges. This paper aims to meet the application requirements of SAP analysis for forensic biological evidence’s proteome data. MethodsThe software is divided into three modules. First, based on a built-in database of common non-synonymous single nucleotide polymorphisms (nsSNPs) and SAPs in East Asian populations, the software integrates and annotates newly identified exonic nsSNPs as SAPs, thereby constructing a customized SAP protein sequence database. It then utilizes a pre-installed search engine—either pFind or MaxQuant—to perform analysis and output SAP typing results, identifying both reference and variant types, along with their corresponding imputed nsSNPs. Finally, SAPTyper compares the proteome-based typing results with the individual’s exome-derived nsSNP profile and outputs the comparison report. ResultsSAPTyper accepts proteomic DDA mass spectrometry raw data (DDA acquisition mode) and exome sequencing results of nsSNPs as input and outputs the report of SAPs result. The pFind and Maxquant search engines were used to test the proteome data of 2 hair shafts of2 individuals, and both obtained SAP results. It was found that the results of the Maxquant search engine were slightly less than those of pFind. This result shows that SAPTyper can achieve SAP fingding function. Moreover, the pFind search engine was used to test the proteome data of 3 hair shafts from 1 European person and 1 African person in the literature. Among the sites fully matched by the literature method, sites detected by SAPTyper are also included; for semi-matching sites, that is, nsSNPs are heterozygous, both literature method and SAPTyper method had the risk of missing detection for one type of the allele. Comparing the analysis results of SAPTyper with the SAP test results reported in the literature, it was found that some imputed nsSNP sites identified by the literature method but not detected by SAPTyper had a MAF of less than 0.1% in East Asian populations, and therefore they were not included in the common nsSNP database of East Asian populations constructed by this software. Since the database construction of this software is based on the genetic variation information of East Asian populations, it is currently unable to effectively identify representative unique common variation sites in European or African populations, but it can still identify SAP sites shared by these populations and East Asian populations. ConclusionAn automated SAP analysis algorithm was developed for East Asian populations, and the software named SAPTyper was developed. This software provides a convenient and efficient analysis tool for the research and application of forensic proteomic SAP and has important application prospects in individual identification and phenotypic inference based on SAP.
2.Challenges Faced by "Young" Ethics Committees under the Mode of Collaborative Review
Xiaoyan DONG ; Shuo YIN ; Xubin ZHANG ; Quan XIAO
Chinese Medical Ethics 2024;35(5):508-512
In the process of exploring standardized and efficient ethical review models for multi-center drug clinical trials, the ethical review alliance emerged as the times require. Compared with mature ethics committees, higher requirements have been put forward for the "young" ethics committees. By analyzing problems existing in review work of "young" ethics committees in the ethics review alliance, this paper discussed the measures to improve the review quality of "young" ethics committees and promote the standardized and efficient operation of the alliance, and put forward countermeasures and suggestions for improving the homogenization of ethics review and accelerating the clinical research process of innovative drugs.
3.Design, synthesis, and antifungal mechanism of carbaline fluorescent probes
Xiao-qing WANG ; Ji YANG ; Qiao SHI ; Dong-jian XU ; Na LIU ; Chun-quan SHENG
Acta Pharmaceutica Sinica 2024;59(3):643-650
Three carboline fluorescent probes F1-F3 were designed and synthesized, based on lead compound JYJ-19, an antifungal compound discovered previously by our group. The antifungal activity
4.Preparation and Recognition Features of Molecularly Imprinted Polymer Membrane for Lamotrigine in Plasma
Dong-Yu LU ; Yu-Xin YOU ; Yan-Lin ZHAO ; Han JIANG ; Ying ZHANG ; Yan DU ; Dao-Quan TANG
Chinese Journal of Analytical Chemistry 2024;52(1):80-92
The molecularly imprinted polymers membranes(MIPMs)were prepared for selective adsorption of lamotrigine(LTG)in plasma by surface molecular imprinting technology with polyvinylidenefluoride(PVDF)membranes as supporter,lamotrigine as template molecule,methyl methacrylate as functional monomer,ethylene glycol dimethacrylate as cross-linking agent,azodiisobutyronitrile as initiator and acetonitrile-dimethylformamide(1∶1.5,V/V)as pore-forming agent.The prepared MIPMs were characterized by scanning electron microscope,Fourier transform infrared spectroscopy,Brunaner-emmet-teller measurements,X-ray photoelectron spectroscopy,and thermogravimetric analysis.The adsorption properties of the materials were investigated by kinetic adsorption,isothermal adsorption,selective adsorption,adsorption-desorption and reusability experiments.The results showed that the imprinted layer of LTG was successfully coated on the surface of PVDF,and the materials had uniform particle size.The adsorption capacity and imprinting factor of the MIPMs towards LTG were 3.77 mg/g and 8.97,respectively.The nanomaterials showed fast mass transfer rate(30 min)and good reusability(the adsorption efficiency was 86.66%after 6 cycles),and could be used for the adsorption of LTG in plasma with low matrix interference,recoveries of 86.54%-90.48%and RSD of 1.51%-3.15%(n=5).The proposed LTG MIPMs were demonstrated to be simple and environment friendly,and had high selectivity in rapid separation and extraction of LTG in plasma.
5.Clinical Characteristics of Adverse Events and Influencing Factors of Osteoking
Pengxuan DONG ; Rui QUAN ; Jun ZHOU ; Na LIN ; Baohong MI ; Weiheng CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(18):132-138
ObjectiveTo observe the clinical characteristics and influencing factors of adverse events of Osteoking and provide a basis for its rational use in clinical practice. MethodA prospective and multicenter Cohort study with large samples was conducted to observe the effects of Osteoking in the treatment of 922 patients with knee osteoarthritis from 20 hospitals from May 1, 2020 to December 31, 2021. Patients who were treated with Osteoking were set as the exposed cohort, and those who were not treated with Osteoking were set as the non-exposed cohort. The gender, age, body mass index (BMI), occupation, allergy history, past medical history, hospital information, medication, and the occurrence of adverse events of the patients were recorded, and the incidence of adverse events was analyzed, as well as its characteristics and factors. ResultA total of 922 patients with knee osteoarthritis were involved, including 274 males (29.72%) and 648 females (70.28%), from which 617 cases were in the exposed cohort, and 305 cases were in the non-exposed cohort. A total of 25 adverse events occurred in both cases, accounting for 2.71% of the total number of cases, with 17 cases in the exposed cohort (2.76%) and eight cases in the non-exposed cohort (2.62%). There was no difference in the incidence rate between the two groups (P=0.907). The age group with the highest incidence of adverse events was between 50 and 59 years old in the exposed cohort (4.61%). The incidence rate in women was 3.49%, slightly higher than 1.07% in men, but there was no difference (P=0.156). According to the systematic classification of adverse events, five cases were respiratory, thoracic, and mediastinal diseases, with an incidence rate of 0.81%. There were two cases of infection and infection diseases, two cases of skin and subcutaneous tissue diseases, two cases of heart-related diseases, two cases of symptoms and signs (not otherwise classified), and two cases of eye organ diseases, and the incidence rate was 0.32%. There was one case of systemic disease, one case of neuropathy, one case of heart organ disease, and one case of vascular hypotension disease, and the incidence rate was 0.16%. During the trial, a total of seven adverse reactions occurred. Among them, there were two cases of dry pharynx, two cases of dizziness, one case of drowsiness, one case of hypotension, and one case of eye discharge, with an incidence rate of 1.13%. Through binary Logistic regression analysis, it was found that among the factors that may affect the occurrence of adverse events in the exposed group, traditional Chinese medicine hospitals were the protective factors for the occurrence of adverse events (OR=0.200, P=0.002), while gender, age, BMI, occupation, allergy history, past medical history, and hospital level cannot be considered to have an impact on the occurrence of adverse events. ConclusionOsteoking can be used to treat knee osteoarthritis of patients of all ages and genders by doctors from hospitals of different levels with higher safety, with occasional and mild adverse events, and seeing a doctor in a traditional Chinese medicine hospital can reduce the occurrence of adverse reactions.
6.Study on Intravertebral Labor Analgesic Care with the Intervention of Anesthesia Nurse
Sisi CHENG ; Chunmei YANG ; Yaqun QUAN ; Yawen LEI ; Peixian DONG ; Dandan YANG
Journal of Kunming Medical University 2024;45(3):198-202
Objective To investigate the effect of intravertebral labor analgesia nursing intervened by anesthesia nurse on labor analgesia and delivery outcome.Methods Two hundreds cases of parturients who received intravertebral labor analgesia in The First Affiliated Hospital of Kunming Medical University from July to December 2022 were selected as research objects and randomly divided into observation group and control group by drawing lots,with 100 cases in each group.The control group was given routine nursing by midwives,and the observation group was given anesthesia nursing by an anesthesia nurse.The degree of labor pain,the outcome of labor,the incidence of anesthesia-related complications,and the satisfaction of labor analgesia nursing were compared between the two groups.Results The degree of labor pain in the observation group was significantly lower than that in the control group(P<0.05).The duration of labor in the observation group was longer than that in the control group(P<0.05).The incidence of anesthesia-related complications in the observation group was significantly lower than that in the control group(P<0.05).The satisfaction of parturient analgesic care in the observation group was higher than that in the control group(P<0.05).Conclusion Labor analgesia care intervened by anesthesia nurses can effectively reduce labor pain,shorten the labor process,reduce the incidence of anesthesia-related complications,improve the satisfaction of labor analgesia nursing,and provide a safe,comfortable,and effective labor process for women,which is worthy of clinical promotion.
7.Exploring the mechanism of lamotrigine in treatment of major depressive disorder based on network pharmacology,molecular docking,and Mendelian randomization
Jin-Sheng JIANG ; Hong-Ying CHEN ; Wei-Quan WANG ; Hai-Hong HU ; Yao CHEN ; Dong-Sheng OUYANG
The Chinese Journal of Clinical Pharmacology 2024;40(7):1068-1071
Objective To explore the mechanism of action of lamotrigine in the treatment of major depressive disorder(MDD).Methods Information on the drug targets of lamotrigine and the therapeutic targets of MDD were collected for intersection target gene analysis and protein-protein interaction screening.Various biological pathways related to lamotrigine in treatment of MDD were determined through gene ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analysis.The screened core targets were preliminarily validated using molecular docking technology.Further validation of Mendelian randomization was conducted using genome-wide association analysis data from gamma-aminobutyric acid recep tor-associated protein-like 1(GABARAPL1)and MDD in the OpenGWAS database.Results The biological pathways related to lamotrigine in treatment of MDD were identified,which included gamma-aminobutyric acid(GABA)ergic synapses,nicotine addiction,glutamatergic synapses,endogenous cannabinoid signaling.Molecular docking showed that the docking energy of lamotrigine with GABRA1,GABRB2,GABRA6,GABRD,GABRG2,GABRG1,GABRA5,GABRA4,GABRB3,and GABRA2 receptors was-5.8 kCal·mol-1.Among them,the GABRB3 receptor showed the strongest docking energy with lamotrigine,which was-9.5 kCal·mol-1.In the genome-wide association analysis data of GABARAPL1,303 single nucleotide polymorphisms were associated with GABARAPL1(P<5 × 106).15 single nucleotide polymorphisms were screened and retained for Mendelian randomization analysis,and the results showed that GABA receptors may be an important therapeutic target for MDD.Conclusion The treatment of MDD with lamotrigine may be achieved by acting on GABA receptors,which provided a research basis for the clinical application of lamotrigine in treating MDD.
8.Drug metabolism and excretion of14Cbirociclib in Chinese male healthy subjects
Quan-Kun ZHUANG ; Hui-Rong FAN ; Shi-Qi DONG ; Bin-Ke FAN ; Ming-Ming LIU ; Ling-Mei XU ; Li WANG ; Xue-Mei LIU ; Fang HOU
The Chinese Journal of Clinical Pharmacology 2024;40(14):2118-2123
Objective To evaluate the characteristics of the mass balance and pharmacokinetics of[14 C]birociclib in Chinese male healthy volunteers after a single oral administration.Methods This study used a 14 C labeled method to investigate the mass balance and biological transformation of birociclib in human.Subjects were given a single oral dose of 360 mg/50 pCi of[14 C]birociclib suspension after meals.The blood,urine,and fecal samples were collected at specified time points/intervals after administration.The radiation levels of 14 C labeled birociclib-related compounds in the blood,plasma,urine,and feces were analyzed using liquid scintillation counting.In addition,a combination of high-performance liquid chromatography and on-line/off-line isotope detectors was used to obtain radioactive isotope metabolite spectra of plasma,urine,and fecal samples,and high-resolution mass spectrometry was used to identify the main metabolites.Results A total of 6 healthy male subjects were enrolled in this study.The median peak time of radioactive components in plasma was 5.00 h and the average terminal elimination half-life was 43.70 h after administration.The radioactive components were basically excreted and cleared from the body within 288.00 hours after administration,and average cumulative recovery rate of radioactive drugs was(94.10±8.19)%.The radioactive drugs were mainly excreted through feces,accounting for(84.60±7.10)%of the dose of radioactive drugs administered.Urine was the secondary excretory pathway,accounting for 9.41%of the dose of radioactive drugs administered.Metabolic analysis indicated that the prototype drug was the main radioactive components in plasma samples.The main metabolites in plasma were RM4(XZP-5286),RM6(XZP-3584),and RM7(XZP-5736).The drugs were mainly cleared from the body in the form of prototype drugs and metabolites.In addition to prototype drugs,a total of 9 metabolites were identified and analyzed in plasma,urine,and fecal samples,all of which were phase 1 metabolites.The main metabolic and clearance pathways of drugs in the body were deethylation,diisopropylat ion,oxidation,etc.Conclusion After a single oral administration of[14C]birociclib suspension to healthy subjects,it was mainly cleared from the body in the form of prototype drugs and metabolites,with feces as the main excretory pathway and urine as the secondary excretory pathway.Drugs mainly undergo metabolic reactions in the body,such as deethylation,diisopropylation,and oxidation.The subjects were well tolerance after administration.
9.Mechanism of endoplasmic reticulum and mitochondria interference in functional dyspepsia and intervention status of Chinese medicine for Shu Gan Jian Pi
Jun GUO ; Zheng-Quan WU ; Zheng-Yan WANG ; Hui-Jun ZHANG ; Sheng-Cai LI ; Xu-Dong TIAN
The Chinese Journal of Clinical Pharmacology 2024;40(15):2292-2295
Gastrointestinal dyskinesia is a central factor contributing to the development of functional dyspepsia(FD),which is characterized by the rupture of the gastrointestinal nerve-Cajal interstitial cell-smooth muscle network.Gan Yu Pi Xu are similar to endoplasmic reticulum stress(ERs)-mitochondrial autophagy homeostasis imbalance.Mitochondrial autophagy disorders are the biological basis of Pi Xu,and Gan Yu is the macroscopic manifestation of ERs,and regulation of ERs-mitochondrial autophagy pathway is an important way to prevent and control FD.In this paper,we start from the theory of"liver-spleen correlation",combine the changes of endoplasmic reticulum and mitochondria in the process of gastrointestinal dyskinesia,reveal the correlation between the pathogenesis of Gan Yu Pi Xu and the autophagy of ERs and mitochondria,and elucidate the mechanism of gastrointestinal dyskinesia by the method of Shu Gan Jian Pi,so as to provide a new point of view for the treatment of gastrointestinal dyskinesia in FD.
10.Effects of ligustrazine on cognitive function in mice with post-traumatic stress disorder
Ling GUO ; Yong-Quan CHEN ; Can LIU ; Wei-Dong YAO ; Yue YAO ; Ping-Ping CHENG ; Zhao-Fang LIU
The Chinese Journal of Clinical Pharmacology 2024;40(19):2880-2884
Objective To investigate the effect and mechanism of tetramethylpyrazine(TMP)on cognitive function in mice with post-traumatic stress disorder(PTSD).Methods The mice were randomly divided into normal group,model group and experimental group.Except for the normal group,the PTSD mouse model was established by single prolonged stress(SPS).The experimental group was intraperitoneally injected with 10 mg·kg-1 TMP,and the normal group and the model group were intraperitoneally injected with an equal amount of 0.9%NaCl.The Morris water maze,open field and elevated plus maze tests were used to evaluate the cognitive behavior of the mice.The apoptosis of neurons was detected by Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling(TUNEL).The expression of ionized calcium binding adapter molecule-1(Iba-1)protein was detected by immunofluorescence(ICC).The content of oxidative stress inflammatory factors was detected by enzyme-linked immunosorbent assay(ELISA).Results The escape latency of the normal group,model group,and TMP group were(56.50±9.89),(87.16±10.48)and(68.63±10.19)s,respectively;the corner residence time of the open field were(190.37±40.64),(260.39±40.54)and(218.63±38.27)s,respectively;the apoptosis rates were(18.28±2.35)%,(39.36±3.65)%and(30.74±3.58)%,respectively;the fluorescence intensities of Iba-1 were(8.01±2.23)%,(50.87±7.31)%and(7.49±1.41)%;malondialdehyde contents were(5.46±0.95),(12.98±2.06)and(8.31±1.28)nmol·mg-1,respectively;tumor necrosis factor-α contents were(53.59±9.91),(115.46±11.53)and(74.38±10.77)pg·mL-1,respectively.The above indexes in the normal group and the experimental group were statistically significant compared with the model group(P<0.05,P<0.01).Conclusion TMP can improve the cognitive function of PTSD mice,and the mechanism may be related to the regulation of inflammation and oxidative stress.

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