1.Research progress on NLRP3 inflammasome-mediated regulation of tissue remodeling during orthodontic tooth movement
WANG Jiajia ; ZHANG Jiangtao ; ZENG Fulei
Journal of Prevention and Treatment for Stomatological Diseases 2025;33(2):169-176
NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome mediates inflammation, induces pyroptosis, and regulates periodontal tissue remodeling through the maturation and secretion of its downstream cysteine protease 1 (Caspase-1)-dependent pro-inflammatory cytokines, interleukin (IL)-1β and IL-18. Orthodontic force mediates the aseptic inflammation of periodontal tissues and triggers adaptive alteration of periodontal tissues, thereby promoting the movement and stability of orthodontic teeth. NLRP3 inflammasome plays an important role in orthodontic tooth movement and causes periodontal tissue inflammation and orthodontic inflammatory root resorption in orthodontic patients. Literature review suggests that NLRP3 inflammasome is involved in the activation and differentiation of periodontal ligament fibroblasts, periodontal ligament stem cells, macrophages, osteoblasts, and osteoclasts in orthodontic tooth mobile tissue remodeling. Additionally, it targets the upstream nuclear factor kappa-B signaling pathway; downstream effectors, such as Caspase-1, IL-1β, and IL-18; and the NLRP3 inflammasome components for regulating tooth movement as well as treating and preventing orthodontics-associated periodontitis and orthodontic-induced inflammatory root resorption. Future studies can be focused on the specific mechanism of NLRP3 inflammasome tissue modification during orthodontic tooth movement. This article reviews the effects and regulatory mechanisms of the NLRP3 inflammasome signaling pathway on the corresponding tissue remodeling during orthodontic tooth movement.
2.Research progress on antimicrobial peptides against methicillin-resistant Staphylococcus aureus
Yuxuan WANG ; Weichang GUO ; Cheng CHEN ; Yao LUO ; Yaxiong XIAO ; Jiangtao LI
China Pharmacy 2025;36(5):636-640
Staphylococcus aureus is a Gram-positive bacterium with strong pathogenicity. With the widespread use of antibiotics, its multi-drug resistance has gradually increased. Among them, methicillin-resistant S. aureus (MRSA) is one of the main pathogens of hospital and community infections. Antimicrobial peptides are short-chain peptides with good antibacterial effects and low drug resistance, which have been widely studied in recent years. This study summarizes the mechanism of action of antimicrobial peptides and related study on antimicrobial peptides against MRSA from different sources. It is found that the mechanisms of action of antimicrobial peptides include targeting bacterial cell membranes, bacterial cells, and bacterial cell walls, etc. Besides isolating antimicrobial peptides with anti-MRSA activity from animals, plants, and microorganisms, antimicrobial peptides can also be obtained through synthetic methods. Among them, GHa-derived peptides from animal sources, Ib-AMP4 from plant sources, Ph-SA from microbial sources, the synthetic peptide LLKLLLKLL-NH2, and so on, due to their effective antibacterial activity, rapid bactericidal speed, and low toxicity, are promising candidates for anti-MRSA drugs.
3.Randomized Controlled Trail of Ganlu Qingwen Prescription for Treatment of Community-acquired Pneumonia
Xiangpeng LI ; Fengsen LI ; Ling WANG ; Zheng LI ; Dan XU ; Jiangtao LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):225-236
ObjectiveTo explore the regulatory effect of Ganluqingwen prescription on inflammation and immunity by observing the clinical efficacy of Ganluqingwen prescription in the treatment of community-acquired pneumonia (CAP), so as to provide a clinical basis for the treatment of CAP by traditional Chinese medicine (TCM). MethodsA randomized controlled trial was conducted by selecting patients who were diagnosed with CAP and identified as wind-heat attacking lungs in Xinjiang Uygur Autonomous Region Hospital of TCM from January 2024 to May 2024 and assigning the patients to a control group (treated by western medicine treatment) or an experimental group (treated by Ganluqingwen prescription combined with western medicine). The data of the enrolled patients before treatment, for three-day treatment, for seven-day treatment, and for 14-day treatment were collected, including basic information, medical history, pneumonia severity index (PSI) classification, and distribution and difference of laboratory and imaging information indexes. The peripheral blood specimens were collected from the patients. and the changes of inflammatory factors in peripheral blood were detected by using enzyme-linked immunosorbent assay (ELISA) reagent kits and flow-type multifactor microarrays to evaluate the clinical safety and efficacy of Ganluqingwen prescription in CAP. ResultsCompared with those in the groups before treatment, the total scores of TCM syndromes significantly decreased in both groups (P<0.05). Compared with those in the control group after treatment, the total scores of TCM syndromes decreased more significantly in the experimental group (P<0.05). Compared with the control group after treatment, the experimental group displayed a significantly reduced number of days of fever in patients (P<0.05). Compared with those in the groups before treatment, the leukocyte, neutrophil counts, C-reactive protein (CRP), procalcitonin (PCT), interleukin (IL)-6, alanine aminotransferase (ALT), aspartate aminotransferase (AST), creatinine (Cr), creatine kinase (CK), and creatine kinase isoenzymes (CK-MB) in both groups decreased (P<0.05) after treatment. Compared with that in the control group after treatment, the decrease of leukocyte, neutrophil counts, CRP, PCT, IL-6, ALT, AST, Cr, CK, and CK-MB was more pronounced in the experimental group (P<0.05). Compared with those in the group before treatment, the partial pressure of carbon dioxide increased in the experimental group for 3 d of treatment (P<0.05), and the standard alkali residual, actual alkali residual, standard bicarbonate concentration, and actual bicarbonate concentration increased in the experimental group for 7 d of treatment (P<0.05). Compared with that in the group before treatment, D-dimer decreased in the control group for 7 d of treatment (P<0.05). D-dimer and activated partial thromboplastin time (APTT) decreased in the experimental group for 3 d of treatment (P<0.05), and D-dimer, fibrinogen (FIB), and APTI significantly decreased in the group for 7 d of treatment (P<0.05). Compared with the group for 3 d of treatment, the experimental group for 7 d of treatment showed decreased FIB (P<0.05). Compared with those in the groups before treatment, the levels of inflammatory factors IL-4, IL-10, and IL-13 were elevated in the peripheral blood of the two groups after treatment, and the levels of B lymphocyte chemoattractant (BLC), interferon gamma-induced protein 10 (IP-10), tumor necrosis factor-alpha (TNF-α), interferon-gamma (IFN-γ), monocyte chemoattractant protein-1 (MCP-1), CRP, IL-2, IL-6, IL-8, IL-17, IL-22, and IL-23p19 were significantly reduced (P<0.01). Compared with the control group after treatment, the experimental group exhibited more significant improvement in indexes above (P<0.01). ConclusionThe group treated by Ganluqingwen prescription combined with western medicine shows more significant effects on reducing total scores of TCM syndromes, lowering the ability of leukocyte and neutrophil counts, decreasing BLC, IP-10, TNF-α, IFN-γ, MCP-1, CRP, IL-2, IL-6, IL-8, IL-17, IL-22, and IL-23p19 in the peripheral blood of the patients, and elevating levels of IL-4, IL-10, and IL-13 than the group treated by western drugs alone.
4.Randomized Controlled Trail of Ganlu Qingwen Prescription for Treatment of Community-acquired Pneumonia
Xiangpeng LI ; Fengsen LI ; Ling WANG ; Zheng LI ; Dan XU ; Jiangtao LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):225-236
ObjectiveTo explore the regulatory effect of Ganluqingwen prescription on inflammation and immunity by observing the clinical efficacy of Ganluqingwen prescription in the treatment of community-acquired pneumonia (CAP), so as to provide a clinical basis for the treatment of CAP by traditional Chinese medicine (TCM). MethodsA randomized controlled trial was conducted by selecting patients who were diagnosed with CAP and identified as wind-heat attacking lungs in Xinjiang Uygur Autonomous Region Hospital of TCM from January 2024 to May 2024 and assigning the patients to a control group (treated by western medicine treatment) or an experimental group (treated by Ganluqingwen prescription combined with western medicine). The data of the enrolled patients before treatment, for three-day treatment, for seven-day treatment, and for 14-day treatment were collected, including basic information, medical history, pneumonia severity index (PSI) classification, and distribution and difference of laboratory and imaging information indexes. The peripheral blood specimens were collected from the patients. and the changes of inflammatory factors in peripheral blood were detected by using enzyme-linked immunosorbent assay (ELISA) reagent kits and flow-type multifactor microarrays to evaluate the clinical safety and efficacy of Ganluqingwen prescription in CAP. ResultsCompared with those in the groups before treatment, the total scores of TCM syndromes significantly decreased in both groups (P<0.05). Compared with those in the control group after treatment, the total scores of TCM syndromes decreased more significantly in the experimental group (P<0.05). Compared with the control group after treatment, the experimental group displayed a significantly reduced number of days of fever in patients (P<0.05). Compared with those in the groups before treatment, the leukocyte, neutrophil counts, C-reactive protein (CRP), procalcitonin (PCT), interleukin (IL)-6, alanine aminotransferase (ALT), aspartate aminotransferase (AST), creatinine (Cr), creatine kinase (CK), and creatine kinase isoenzymes (CK-MB) in both groups decreased (P<0.05) after treatment. Compared with that in the control group after treatment, the decrease of leukocyte, neutrophil counts, CRP, PCT, IL-6, ALT, AST, Cr, CK, and CK-MB was more pronounced in the experimental group (P<0.05). Compared with those in the group before treatment, the partial pressure of carbon dioxide increased in the experimental group for 3 d of treatment (P<0.05), and the standard alkali residual, actual alkali residual, standard bicarbonate concentration, and actual bicarbonate concentration increased in the experimental group for 7 d of treatment (P<0.05). Compared with that in the group before treatment, D-dimer decreased in the control group for 7 d of treatment (P<0.05). D-dimer and activated partial thromboplastin time (APTT) decreased in the experimental group for 3 d of treatment (P<0.05), and D-dimer, fibrinogen (FIB), and APTI significantly decreased in the group for 7 d of treatment (P<0.05). Compared with the group for 3 d of treatment, the experimental group for 7 d of treatment showed decreased FIB (P<0.05). Compared with those in the groups before treatment, the levels of inflammatory factors IL-4, IL-10, and IL-13 were elevated in the peripheral blood of the two groups after treatment, and the levels of B lymphocyte chemoattractant (BLC), interferon gamma-induced protein 10 (IP-10), tumor necrosis factor-alpha (TNF-α), interferon-gamma (IFN-γ), monocyte chemoattractant protein-1 (MCP-1), CRP, IL-2, IL-6, IL-8, IL-17, IL-22, and IL-23p19 were significantly reduced (P<0.01). Compared with the control group after treatment, the experimental group exhibited more significant improvement in indexes above (P<0.01). ConclusionThe group treated by Ganluqingwen prescription combined with western medicine shows more significant effects on reducing total scores of TCM syndromes, lowering the ability of leukocyte and neutrophil counts, decreasing BLC, IP-10, TNF-α, IFN-γ, MCP-1, CRP, IL-2, IL-6, IL-8, IL-17, IL-22, and IL-23p19 in the peripheral blood of the patients, and elevating levels of IL-4, IL-10, and IL-13 than the group treated by western drugs alone.
5.Relationship between metabolic score for insulin resistance and overactive bladder in the US population based on NHANES data from 2005 to 2018
Guoliang XU ; Feiyang GAO ; Xihao WANG ; Jiangtao ZHU ; Wei LIN ; Pengyue LIU ; Yongjun YAN
Journal of Modern Urology 2025;30(5):416-423
Objective: To assess the association between the metabolic score for insulin resistance index (METS-IR) and overactive bladder (OAB) in the US population,so as to explore the potential of METS-IR as a predictive tool for OAB risk and to provide insights for early screening and intervention strategies. Methods: Based on the data from the National Health and Nutrition Examination Survey (NHANES) 2005-2018,a cross-sectional design was employed,and multivariate logistic regression models were used to analyze the association between METS-IR and OAB. METS-IR was analyzed both as a continuous variable and categorized into quartiles. To further validate the association between METS-IR and OAB across diverse populations,subgroup analyses were conducted in participants stratified by clinical characteristics. Smooth curve fitting was employed to test the linearity of the METS-IR-OAB relationship. Results: Elevated METS-IR was associated with an increased risk of OAB (P<0.001),and this positive correlation remained stable when METS-IR was categorized into quartiles (P<0.001). Subgroup analyses revealed that the association between METS-IR and OAB was more pronounced in females,participants younger than 55 years,and non-diabetic individuals (P<0.05). Furthermore,smooth curve fitting confirmed a linear positive correlation between METS-IR and OAB,with this linear relationship observed in both diabetic and non-diabetic groups. Conclusion: This study,based on the NHANES 2005-2018 database,found a linear positive correlation between METS-IR and OAB.
6.Survey on the status of medical radiation exposure and occupational radiation exposure levels in clinical nuclear medicine in Shanghai, China, 2023
Bin WANG ; Shunqi LU ; Jiangtao BAI ; Hong XIAO ; Linfeng GAO
Chinese Journal of Radiological Health 2025;34(4):477-483
Objective To investigate the basic situation of nuclear medicine diagnostic and treatment institutions in Shanghai, understand the development level and distribution characteristics of nuclear medicine in Shanghai, and assess the current status of nuclear medicine development in Shanghai. Methods Using questionnaires, on-site verification, and retrieval of information system records, a survey was carried out on nuclear medicine department staff, equipment, and personal radiation exposure levels of workers in Shanghai. Results As of December 2023, there were 48 nuclear medicine diagnostic and treatment institutions in Shanghai, including 32 (66.7%) tertiary hospitals. Of these, 24 (50%) hospitals performed 131I therapy, and 9 (18.8%) hospitals conducted 131I treatment for thyroid cancer. There were 681 nuclear medicine radiation workers, with an average annual effective dose from external radiation of 0.54 mSv. There were 137 pieces of nuclear medicine equipment, including 56 SPECT/CT, 42 PET/CT, 8 PET/MRI, 25 thyroid function meters, and 6 cyclotrons. In 2023, the total radioactivity of radionuclides used in Shanghai was 1.2 × 108 MBq, with 3.4 × 107 MBq of 18F, 7.4 × 107 MBq of 99mTc, and 1.2 × 107 MBq of 131I. The total annual number of nuclear medicine diagnostic and treatment procedures performed was 247 826 and the application frequency was 10.0 procedures per thousand population. Conclusion Clinical nuclear medicine in Shanghai has developed rapidly, achieving the Level I healthcare standard as defined in the UNSCEAR 2008 report. Enhancing occupational protection for radiation workers is a critical issue that requires particular attention in the next phase of development.
7.Therapeutic effects of modified plantar skin grafting for the deep burn wounds of the back and butts
Shurun HUANG ; Hui LIN ; Chun ZENG ; Jiangtao LIU ; Weiqi YE ; Yiyong WANG ; Huiqiang SU
Chinese Journal of Trauma 2024;40(3):243-249
Objective:To compare the therapeutic effects of modified plantar skin grafting and thigh skin grafting on the deep burn wounds of the back and buttocks.Methods:A retrospective cohort study was conducted to analyze the clinical data of 30 patients with deep burn wounds on their back and buttocks who were admitted to the 910th Hospital of Joint Logistic Support Force of PLA from January 2021 to April 2023, including 26 males and 4 females, aged 21-72 years [(49.9±14.0)years]. The total burn size was 50%-97% of the total body surface area (TBSA), with the third-degree burn on the back and buttocks 6%-16% TBSA. The burn wounds on the back and buttocks were repaired using plantar skin grafts alone, thigh skin grafts alone or plantar skin grafts combined with the grafts from other body parts. The patients were grouped according to the skin graft donor sites and the times of harvesting skin grafts: there were 20 patients undergone plantar skin grafting including 10 patient with plantar skin graft harvested once (group of plantar skin graft harvested once) and 10 patients with plantar skin graft harvested twice or three times (group of plantar skin graft harvested more than once), and 10 patients undergone thigh skin grafting harvested once (group of thigh skin graft harvested once). The areas of plantar skin grafts harvested at the last time and the wound areas on the back and butts that could be repaired each time were calculated. After the last harvest, the thickness of the stratum corneum, 7-day survival rate of the skin grafts, proportion of 3-month residual wound area in the skin graft area, healing time of the donor sites, and 6-month Vancouver Scar Scale (VSS) scores of the donor sites in the group of plantar skin graft harvested once were compared with those in the group of thigh skin graft harvested once and the group of plantar skin graft harvested more than once. The appearance and texture of the skin graft, patients′ walking patterns and complications were observed at 6 months after the last skin harvest.Results:All the patients were followed up for 6-18 months [(7.8±1.6)months]. In the 20 patients with plantar skin grafts harvested, the areas of skin grafts harvested at the last time were 2.5%-4.5% TBSA [(3.4±0.6)% TBSA] and the wound areas that could be repaired each time were 3%-8% TBSA [(5.5±1.5)% TBSA]. After the last harvest, the thickness of the stratum corneum in the group of plantar skin graft harvested once was (190.4±8.9)μm, which was significantly thicker than that in the group of thigh skin graft harvested once [(50.0±6.6)μm] and that in the group of plantar skin graft harvested more than once [(166.8±21.9)μm] ( P<0.01); the 7-day survival rate of the skin grafts, proportion of 3-month residual wound area in the skin graft area, healing time of the donor sites, and 6-month VSS scores of the donor sites were (93.6±2.3)%, 2.0 (0.1, 3.5)%, (9.9±1.8)days and (1.7±0.7)points in the group of plantar skin graft harvested once, (78.0±6.6)%, 5.3 (4.0, 5.8)%, (14.0±1.4)days and (4.9±2.3)points in the group of thigh skin graft harvested once, and (93.4±2.6) %, 2.0 (0.1, 3.8)%, (10.0±1.2)days and (1.8±0.8)points in the group of plantar skin graft harvested more than once. The group of plantar skin graft harvested once showed a significant increase in the 7-day survival rate and a significant decrease in the proportion of 3-month residual wound area in the skin graft area, healing time of the donor sites, and 6-month VSS scores of the donor sites in comparison with the group of thigh skin graft harvested once ( P<0.05 or 0.01), while there were no significant differences in above mentioned indices between the group of plantar skin graft harvested once and the group of plantar skin graft harvested more than once ( P>0.05). At 6 months after the last skin harvest, the skin graft areas on the back and buttocks were flat, hard and firm and all the patients in the three groups could walk normally, with no complications such as severe itching, pain or folliculitis in the skin graft area. Conclusions:In the treatment of burn wounds on the back and buttocks, compared with thigh skin grafting, modified plantar skin grafting has advantages of thicker stratum corneum, better wear resistance and pressure resistance in the skin graft areas, a higher survival rate of skin grafts, rapid healing, mild scar, and undisturbed walking pattern after surgery and no common complications. Moreover, skin grafts can be harvested repeatedly from the donor sites, with no impact on the therapeutic effects.
8.Effect of transcutaneous auricular vagus nerve stimulation on tourniquet-induced hypertension in patients undergoing anterior cruciate ligament reconstruction
Qi ZHOU ; Mingyang GAO ; Lili YU ; Yanan LI ; Xuguang CHEN ; Peixia YU ; Yahui ZHANG ; Jiangtao DONG ; Qiujun WANG
Chinese Journal of Anesthesiology 2024;44(3):272-276
Objective:To evaluate the effect of transcutaneous auricular vagus nerve stimulation (taVNS) on tourniquet-induced hypertension (TIH) in the patients undergoing anterior cruciate ligament reconstruction.Methods:Seventy-four patients of either sex, aged 18-60 yr, of American Society of Anesthesiologists Physical Status classification I or II, with body mass index of 18-30 kg/m 2, undergoing elective anterior cruciate ligament reconstruction under general anesthesia combined with preoperative femoral nerve block, were divided into 2 groups ( n=37 each) using a random number table method: sham stimulation group (group SS) and group taVNS. Group SS received stimulation on the ear lobe and the tail of the helix of the left ear. Group taVNS received stimulation on the cymba concha and the earlobe of the left ear. Both groups received stimulation from 1 h before induction of anesthesia until the end of the procedure (frequency of 30 Hz, pulse width of 300 μs, and amplitude of the strongest current that could be tolerated by the patient in the absence of pain). The tourniquet inflation pressure was 280 mmHg, with an inflation time of 60-90 min. Systolic blood pressure, diastolic blood pressure and heart rate were recorded before tourniquet inflation to assess the development of intraoperative TIH. The consumption of intraoperative propofol, remifentanil, nitroglycerin, esmolol, norepinephrine and atropine was recorded, and the occurrence of postoperative nausea and vomiting, skin itching and headache and dizziness was also recorded. Results:Compared with group SS, the incidence of TIH and the number of patients used nitroglycerin were significantly reduced ( P<0.05), and no significant changes were found in the other parameters in group taVNS ( P>0.05). Conclusions:taVNS can decrease the occurrence of TIH in the patients undergoing anterior cruciate ligament reconstruction.
9.Advances in treatment decision-making for extrahepatic recurrence of intrahepatic cholangiocarcinoma
Journal of Clinical Hepatology 2024;40(12):2361-2365
There has been a constant increase in the incidence rate of intrahepatic cholangiocarcinoma in China, and as a highly fatal malignancy, it often has an extremely poor prognosis. Surgical resection is the only possible way to cure this disease, but postoperative recurrence rate reaches as high as 50% — 70%. While recurrence is commonly observed in the liver, 15% — 30% of patients may experience extrahepatic recurrence. There are relatively few studies in the treatment strategies for extrahepatic recurrence, and there are still no clear guidelines for recommendation. Chemotherapy is currently the main treatment method for this disease. Studies have shown that some patients man achieve a prolonged survival time through surgical resection of extrahepatic recurrence sites, and in particular, such surgery is more feasible in patients with single focal lesion during recurrence. Nevertheless, surgery is only suitable to a small number of patients, and most patients still need to rely on systemic therapy and local treatment. Through a comprehensive analysis of related articles, this article summarizes the key influencing factors for extrahepatic recurrence, discusses the indications for surgery, and emphasizes the importance of individualized treatment strategies, in order to provide a reference for future treatment modalities.
10.Inhibiting NBR1 expression using the AAV6-CRISPR-Cas9 system affects tumor immune regulation in lung cancer mice
Bokang Wang ; Mingyang Zhu ; Xiusen Zhang ; Jiangtao Sun
Acta Universitatis Medicinalis Anhui 2024;59(12):2103-2111
Objective:
To establish aNBR1-knockout lung cancer mouse model through CRISPR-Cas9 technology by using adeno-associated virus(AAV) as a vector to specifically inhibitNBR1expression and to investigate the impact ofNBR1knockout on tumor growth and immune cell infiltration and regulation.
Methods:
sgRNAs targeting mouseNBR1(Gene ID: 17966) was designed using the online tool CRISPOR(http://crispor.tefor.net/crispor.py). AAV6 was utilized as the vector for sgRNA delivery, and the efficiency of gene knockout was confirmed using PCR and DNA sequencing methods. To determine the best AAV infection approach in mice, 6 C57BL/6J mice were randomly divided into intranasal and endotracheal groups. After 28 days, lung tissue sections were assessed for enhanced green fluorescent protein expression to identify the more efficient infection method for subsequent experiments. Lung tumor growth, as well as immune cell infiltration and activation status in tumor tissues, were detected using methods including HE staining, immunohistochemistry, immunofluorescence, and flow cytometry.
Results:
DNA sequencing and immunofluorescence results indicated successful construction of the AAV6-U6-sgNBR1-CAG-Cre-GFP vector with stable knockout efficiency. Fluorescence microscopy showed higher efficiency of lung infection in mice through intratracheal administration(P<0.05). HE staining revealed reduced tumor area in mouse lungs after targetedNBR1knockout compared to the control group(P<0.01). Immunofluorescence and flow cytometry results demonstrated enhanced functional activity of CD8+T lymphocytes in lung cancer tissues of mice with targetedNBR1knockout, characterized by increased effector T lymphocytes and decreased exhausted T lymphocytes(P<0.01).
Conclusion
Using CRISPR/Cas9 technology, we construct a lung cancer mouse model with targetedNBR1knockout. We verify that targeted inhibition of NBR1 expression significantly enhances the functional activity of CD8+T lymphocytes in lung tissues, resulting in suppressed tumor growth, reduced tumor burden, and extended survival in lung cancer mice. This study lays an experimental foundation for investigations into the mechanisms and functions ofNBR1and other genes in lung adenocarcinoma cells.


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