Periodontitis has emerged as one of the most critical oral diseases, and research on this condition holds great importance for the advancement of stomatology. As the most authoritative national scientific research funding institution in China, the National Natural Science Foundation of China (NSFC) has played a pivotal role in driving the progress of periodontal science by supporting research on periodontitis. This article provides a comprehensive review of the research and development progress related to periodontitis in China from 2014 to 2023, highlighting the significant contributions of the NSFC to this field. We have summarized the detailed funding information from the NSFC, including the number of applicant codes, funded programs and the distribution of funded scholars. These data illustrate the efforts of the NSFC in cultivating young scientists and building research groups to address key challenges in national scientific research. This study offers an overview of the current hot topics, recent breakthroughs and future research prospects related to periodontitis in China.
China ; Periodontitis ; Humans ; Foundations ; Research Support as Topic ; Natural Science Disciplines ; Dental Research/economics*

OBJECTIVE: Citri Reticulatae Pericarpium (Chenpi, CRP) is one of the most used traditional Chinese medicines with great medicinal, dietary and collection values, among which the Citrus reticulata cv. 'Chachi' (Citrus reticulata cv. Chachiensis) from Guangdong Xinhui is the geoherb of CRP. Xinhui CRP in the market was often counterfeited with other varieties or origins, molecular identification method can effectively distinguish different CRP varieties, but it's still a difficult problem to identify the same CRP variety from different origin. It is necessary to discover a new molecular marker to ensure the safe and effective application of Xinhui CRP. METHODS: We selected one of the most studied transcription factor families in Citrus genus, MYB, to design the specific candidate primers on the conserved region. The primers with good band repeatability and high polymorphism were screened for PCR amplification of the test materials, and the genetic similarity coefficient among different families, genera, species, and origins were calculated. The cluster analysis was performed by unweighted pair group method using arithmetic average (UPGMA). RESULTS: A total of ten MYB primers were screened out to identify Xinhui CRP from plants from different family (Panax ginseng and Morus alba), genus (Clausena lansium and Zanthoxylum schinifolium), and species (Citrus reticulata, C. sinensis and C. maxima). Furthermore, two from the ten primers, M1 and M10, were found to distinguish Xinhui CRP from other origins. There were 169, 113, 133 and 134 polymorphic bands in the identification of different families, genera, species, and origins respectively, and the accordingly polymorphism ration were 79.88%, 76.87%, 79.20% and 82.84%. Moreover, M1 was discovered to be the best primer to identify Xinhui CRP from other seven origins, the cluster analysis results based on the genetic similarity coefficients were consistent with the geographical distribution. CONCLUSION This study established a novel molecular identification method according to MYB transcription factor, which can analyze the potential parental relationship of CRP germplasm, as well as identify the quality and origins of Xinhui CPR.

Objective To investigate the feasibility and safety of transradial approach(TRA)for carotid artery stenting(CAS)using single-layer braided carotid stents with a microporous dense mesh design.Methods A retrospective consecutive series of patients with carotid artery stenosis who underwent CAS via TRA using single-layer braided microporous dense mesh stents admitted to the Department of Neurology,Linyi People's Hospital,Shandong Second Medical University were included from December 2022 to April 2023.General and clinical data,lesion characteristics,procedural metrics,periprocedural conditions,and follow-up outcomes were collected from the patients.General and clinical data including sex,age,medical history(hypertension,diabetes,coronary artery disease),and preoperative modified Rankin scale(mRS)score.Lesion characteristics included stenosis location,normal lumen diameters distal and proximal to the stenosis,stenosis rate,lesion length,and aortic arch type.Procedural metrics included successfully guided catheter placement,stent deployment,retrieval of the embolic protection device and residual stenosis rate.Periprocedural conditions included periprocedural complications(within 72 hours included puncture site bleeding,symptomatic radial artery occlusion,new cerebral infarctions on diffusion-weighted imaging,and cardio-cerebrovascular events[angina,acute myocardial infarction,cerebral infarction,cerebral hemorrhage])and length of hospital stay.The mRS scores at 1 and 6 months after surgery were recorded via telephone follow-ups.At 12 months after surgery,outpatient carotid color Doppler ultrasound was performed to evaluate in-stent restenosis.Results(1)Ten patients(9 male,1 female)aged 57-72 years,with a median age of 70(62,71)years were included.Among them,9 had hypertension,2 had diabetes,and 1 had coronary artery disease.Four patients had symptomatic carotid stenosis:2 presented with hemiparesis,1 with mild dysarthria,and 1 with transient ischemic attack.Preoperative mRS scores among symptomatic patients were 0(1 patient),1(2 patients),and 2(1 patient).The remaining 6 patients had asymptomatic stenosis,all with preoperative mRS scores of 0.(2)Two patients had left internal carotid artery(ICA)stenosis,and 8 had right ICA stenosis.The mean stenosis degree was(79.9±7.1)％,and the mean lesion length was(16.8±5.7)mm.The mean normal distal and proximal lumen diameter of the stenosed blood vessel were(5.1±0.5)mm and(8.1±0.8)mm,respectively.One patient had a type Ⅰ aortic arch,8 patients had type Ⅱ,and 1 patient had type Ⅲ.Among the 8 patients with right ICA stenosis,4 underwent direct catheterization of the right common carotid artery using a glidewire,while the other 4 required exchange technique for guide catheter placement.Both left-sided lesions were treated using exchange technique.Guide catheter placement and stent deployment were successful in all cases.No difficulties were encountered in embolic protection device retrieval.The mean residual stenosis rate was(21.6±6.7)％.(3)The mean postoperative hospital stay was(1.8±0.9)days.No puncture site bleeding or symptomatic radial artery occlusion occurred.One patient experienced a cerebrovascular event due to a pontine perforator artery infarction,presenting with diplopia and impaired left eye adduction,likely caused by postoperative hypotension and hypoperfusion.This patient had an immediate postoperative mRS score of 2 at discharge,which improved to 0 at 6 months.The other 9 patients showed no change in mRS scores compared to preoperative assessments,and no new cerebral infarctions were detected within 72 hours after surgery.At 12-month follow-up,carotid color Doppler ultrasound revealed no in-stent restenosis in any patient.Conclusions CAS performed via TRA using single-layer braided microporous dense mesh stents appears to be feasible and safe.However,this study is a single-center,retrospective analysis with a small sample size.Larger prospective randomized controlled trials are needed to validate these findings.

The 97th Annual Meeting of the Japanese Gastric Cancer Association was held from March 12 to March 14,2025,in Nagoya,Japan.The conference was chaired by Professor Kazuhiro Uyama from Fujita Medical University and attracted nearly 2 000 scholars from around the world,including Japan,China,the republic of Korea,the United States,and Europe.With the theme of"Digital Innovation in Gastric Tumors,"the conference focused on the application of artificial intelligence,robotic surgery,and other innovations in the treatment of gastric cancer.It explored how high-precision and highly reproducible robotic surgical techniques are transforming traditional approaches to gastric cancer surgery,along with topics such as digital innovation,future medical policies,and strategies that herald a new era in healthcare.The meeting featured one main venue and 60 sub-venues with different themes,ultimately accepting 1 003 submissions.A total of 158 oral presentations covering 80 topics and 203 poster presentations were delivered.Among them,approximately 145 lectures were related to robotic surgery for gastric cancer,and when including poster presentations,nearly 255 topics were associated with gastric cancer robotic surgery.Additionally,the 7th edition of the Japanese Gastric Cancer Treatment Guidelines was released during the meeting.Our team had the honor of participating in this prestigious event.Drawing from our experience at both this conference and the 17th Annual Meeting of the Japanese Society for Robotic Surgery held in Utsunomiya,Japan,from March 7 to March 8,2025,we provide a detailed report on the latest advancements in robotic surgery for gastric cancer,hoping to offer valuable insights and references for fellow surgeons both in China and abroad.

The integration of TCM and Western medicine in imaging aims to enrich the sources of diagnostic information by utilizing medical imaging technologies,focusing on key elements such as TCM imaging,Western medical imaging,diseases and TCM syndrome types,thereby facilitating the complementary strengths of both systems.With the advancement of digital imaging and artificial intelligence technologies,various research models and methodologies have emerged.This article discussed the development and application of integrated imaging of traditional Chinese and Western medicine,and proposed three primary research paradigms in this field:Analyzing TCM images(e.g.,tongue and face)through manual or image processing techniques to assist in the diagnosis of Western medical diagnosis;Mapping Western medical imaging signs(e.g.,computed tomography,magnetic resonance imaging and ultrasound imaging)to TCM syndrome patterns for objective evidence in TCM diagnosis and treatment;Applying imaging omics to extract and integrate features from both TCM and Western medical images for comprehensive diagnosis.This study reviewed the three paradigms,explained relevant concepts and technologies,and proposed a specific research workflow of integrated imaging omics of traditional Chinese and Western medicine,aiming to provide a reference for innovative development in this field.

Artificial intelligence(AI)has emerged as a cutting-edge technology leading the future and is a key engine for China's development.In the innovation and research of medical devices,AI has provided critical support in the areas of intelligent diagnostic assistance,intelligent therapeutic assis-tance,intelligent monitoring,life support,et al.Ma-chine learning-enabled device software functions(ML-DSFs)have become an essential component of many medical devices.Recently,the United States Food and Drug Administration(FDA)released a draft guidance titled"Marketing Submission Rec-ommendations for a Predetermined Change Con-trol Plan for Artificial Intelligence/Machine Learn-ing(AI/ML)-Enabled Device Software Functions(Draft)."that aimed to provide a forward-looking approach to foster the development of ML medical devices.By supporting iterative updates through modifications,this approach ensures the continu-ous safety and effectiveness of the devices.This guidance represents the latest in regulatory direc-tion and is especially beneficial for enhancing the quality and efficiency of clinical trials for AI prod-ucts.Therefore,we plan to provide a detailed intro-duction and interpretation of the guidance,with the aim of learning from international advanced regulatory concepts and experiences to promote the development of ML-DSFs with more profound international influence.

The 97th Annual Meeting of the Japanese Gastric Cancer Association was held from March 12 to March 14,2025,in Nagoya,Japan.The conference was chaired by Professor Kazuhiro Uyama from Fujita Medical University and attracted nearly 2 000 scholars from around the world,including Japan,China,the republic of Korea,the United States,and Europe.With the theme of"Digital Innovation in Gastric Tumors,"the conference focused on the application of artificial intelligence,robotic surgery,and other innovations in the treatment of gastric cancer.It explored how high-precision and highly reproducible robotic surgical techniques are transforming traditional approaches to gastric cancer surgery,along with topics such as digital innovation,future medical policies,and strategies that herald a new era in healthcare.The meeting featured one main venue and 60 sub-venues with different themes,ultimately accepting 1 003 submissions.A total of 158 oral presentations covering 80 topics and 203 poster presentations were delivered.Among them,approximately 145 lectures were related to robotic surgery for gastric cancer,and when including poster presentations,nearly 255 topics were associated with gastric cancer robotic surgery.Additionally,the 7th edition of the Japanese Gastric Cancer Treatment Guidelines was released during the meeting.Our team had the honor of participating in this prestigious event.Drawing from our experience at both this conference and the 17th Annual Meeting of the Japanese Society for Robotic Surgery held in Utsunomiya,Japan,from March 7 to March 8,2025,we provide a detailed report on the latest advancements in robotic surgery for gastric cancer,hoping to offer valuable insights and references for fellow surgeons both in China and abroad.

Artificial intelligence(AI)has emerged as a cutting-edge technology leading the future and is a key engine for China's development.In the innovation and research of medical devices,AI has provided critical support in the areas of intelligent diagnostic assistance,intelligent therapeutic assis-tance,intelligent monitoring,life support,et al.Ma-chine learning-enabled device software functions(ML-DSFs)have become an essential component of many medical devices.Recently,the United States Food and Drug Administration(FDA)released a draft guidance titled"Marketing Submission Rec-ommendations for a Predetermined Change Con-trol Plan for Artificial Intelligence/Machine Learn-ing(AI/ML)-Enabled Device Software Functions(Draft)."that aimed to provide a forward-looking approach to foster the development of ML medical devices.By supporting iterative updates through modifications,this approach ensures the continu-ous safety and effectiveness of the devices.This guidance represents the latest in regulatory direc-tion and is especially beneficial for enhancing the quality and efficiency of clinical trials for AI prod-ucts.Therefore,we plan to provide a detailed intro-duction and interpretation of the guidance,with the aim of learning from international advanced regulatory concepts and experiences to promote the development of ML-DSFs with more profound international influence.

The integration of TCM and Western medicine in imaging aims to enrich the sources of diagnostic information by utilizing medical imaging technologies,focusing on key elements such as TCM imaging,Western medical imaging,diseases and TCM syndrome types,thereby facilitating the complementary strengths of both systems.With the advancement of digital imaging and artificial intelligence technologies,various research models and methodologies have emerged.This article discussed the development and application of integrated imaging of traditional Chinese and Western medicine,and proposed three primary research paradigms in this field:Analyzing TCM images(e.g.,tongue and face)through manual or image processing techniques to assist in the diagnosis of Western medical diagnosis;Mapping Western medical imaging signs(e.g.,computed tomography,magnetic resonance imaging and ultrasound imaging)to TCM syndrome patterns for objective evidence in TCM diagnosis and treatment;Applying imaging omics to extract and integrate features from both TCM and Western medical images for comprehensive diagnosis.This study reviewed the three paradigms,explained relevant concepts and technologies,and proposed a specific research workflow of integrated imaging omics of traditional Chinese and Western medicine,aiming to provide a reference for innovative development in this field.

Objective To investigate the feasibility and safety of transradial approach(TRA)for carotid artery stenting(CAS)using single-layer braided carotid stents with a microporous dense mesh design.Methods A retrospective consecutive series of patients with carotid artery stenosis who underwent CAS via TRA using single-layer braided microporous dense mesh stents admitted to the Department of Neurology,Linyi People's Hospital,Shandong Second Medical University were included from December 2022 to April 2023.General and clinical data,lesion characteristics,procedural metrics,periprocedural conditions,and follow-up outcomes were collected from the patients.General and clinical data including sex,age,medical history(hypertension,diabetes,coronary artery disease),and preoperative modified Rankin scale(mRS)score.Lesion characteristics included stenosis location,normal lumen diameters distal and proximal to the stenosis,stenosis rate,lesion length,and aortic arch type.Procedural metrics included successfully guided catheter placement,stent deployment,retrieval of the embolic protection device and residual stenosis rate.Periprocedural conditions included periprocedural complications(within 72 hours included puncture site bleeding,symptomatic radial artery occlusion,new cerebral infarctions on diffusion-weighted imaging,and cardio-cerebrovascular events[angina,acute myocardial infarction,cerebral infarction,cerebral hemorrhage])and length of hospital stay.The mRS scores at 1 and 6 months after surgery were recorded via telephone follow-ups.At 12 months after surgery,outpatient carotid color Doppler ultrasound was performed to evaluate in-stent restenosis.Results(1)Ten patients(9 male,1 female)aged 57-72 years,with a median age of 70(62,71)years were included.Among them,9 had hypertension,2 had diabetes,and 1 had coronary artery disease.Four patients had symptomatic carotid stenosis:2 presented with hemiparesis,1 with mild dysarthria,and 1 with transient ischemic attack.Preoperative mRS scores among symptomatic patients were 0(1 patient),1(2 patients),and 2(1 patient).The remaining 6 patients had asymptomatic stenosis,all with preoperative mRS scores of 0.(2)Two patients had left internal carotid artery(ICA)stenosis,and 8 had right ICA stenosis.The mean stenosis degree was(79.9±7.1)％,and the mean lesion length was(16.8±5.7)mm.The mean normal distal and proximal lumen diameter of the stenosed blood vessel were(5.1±0.5)mm and(8.1±0.8)mm,respectively.One patient had a type Ⅰ aortic arch,8 patients had type Ⅱ,and 1 patient had type Ⅲ.Among the 8 patients with right ICA stenosis,4 underwent direct catheterization of the right common carotid artery using a glidewire,while the other 4 required exchange technique for guide catheter placement.Both left-sided lesions were treated using exchange technique.Guide catheter placement and stent deployment were successful in all cases.No difficulties were encountered in embolic protection device retrieval.The mean residual stenosis rate was(21.6±6.7)％.(3)The mean postoperative hospital stay was(1.8±0.9)days.No puncture site bleeding or symptomatic radial artery occlusion occurred.One patient experienced a cerebrovascular event due to a pontine perforator artery infarction,presenting with diplopia and impaired left eye adduction,likely caused by postoperative hypotension and hypoperfusion.This patient had an immediate postoperative mRS score of 2 at discharge,which improved to 0 at 6 months.The other 9 patients showed no change in mRS scores compared to preoperative assessments,and no new cerebral infarctions were detected within 72 hours after surgery.At 12-month follow-up,carotid color Doppler ultrasound revealed no in-stent restenosis in any patient.Conclusions CAS performed via TRA using single-layer braided microporous dense mesh stents appears to be feasible and safe.However,this study is a single-center,retrospective analysis with a small sample size.Larger prospective randomized controlled trials are needed to validate these findings.