1.Factors affecting the bone augmentation outcome of 3D-printed individualized titanium mesh and countermeasures
YU Dedong ; ZHANG Jiayuan ; WU Yiqun
Journal of Prevention and Treatment for Stomatological Diseases 2025;33(2):89-99
In the field of oral medicine, 3D-printed individualized titanium mesh technology is gradually becoming an important means for the treatment of severe alveolar bone defect augmentation. This article provides a comprehensive analysis of the advantages of this technology, the evaluation of osteogenic effects, and the progress of research in clinical applications. In response to the current issue of variability in bone augmentation outcomes, this paper delves into multiple factors affecting bone augmentation effects, including individualized titanium mesh design (involving the thickness, pore size, pore shape, porosity, contour shape, selection of titanium alloy materials, and 3D printing technology), intraoperative procedures (the accuracy of placement during 3D-printed individualized titanium mesh surgery), and postoperative care (including the prevention of complications, formation of pseudoperiosteum, and stability of the titanium mesh). By integrating the clinical experience and research findings of our team, we propose a series of targeted optimization strategies, including designing, manufacturing, and clinically applying self-positioning individualized titanium meshs (positioning wings + individualized titanium meshs) to improve the positioning accuracy of the titanium mesh; propose individualized treatment processes and titanium mesh design schemes based on specific conditions of alveolar bone defects and soft tissue status; and emphasize the importance of long-term stable fixation of the titanium mesh to reduce the risk of postoperative mesh loosening and displacement. In addition, we appropriately summarize the evaluation methods for the bone augmentation effects of 3D-printed individualized titanium meshes, covering the following key indicators: (1) vertical bone augmentation and horizontal bone augmentation; (2) changes in bone contour morphology; (3) bone volume increase; (4) clinical indicators (surgical success rate, titanium mesh exposure, infection rate, and postoperative recovery); (5) aesthetic effect evaluation; (6) long-term stability; (7) radiological assessment; (8) patient satisfaction; and (9) precision of surgical operation, aiming to assist doctors in comprehensively assessing and in-depth analyzing the surgical outcomes to achieve the best therapeutic effects. The purpose of this article is to provide a reference for the optimization and clinical application of 3D-printed individualized titanium mesh technology and to lay a theoretical foundation for achieving the best osteogenic effects.
2.Erratum: Author correction to "Generation of αGal-enhanced bifunctional tumor vaccine" Acta Pharm Sin B 12 (2022) 3177-3186.
Jian HE ; Yu HUO ; Zhikun ZHANG ; Yiqun LUO ; Xiuli LIU ; Qiaoying CHEN ; Pan WU ; Wei SHI ; Tao WU ; Chao TANG ; Huixue WANG ; Lan LI ; Xiyu LIU ; Yong HUANG ; Yongxiang ZHAO ; Lu GAN ; Bing WANG ; Liping ZHONG
Acta Pharmaceutica Sinica B 2025;15(2):1207-1207
[This corrects the article DOI: 10.1016/j.apsb.2022.03.002.].
3.Genome-wide investigation of transcription factor footprints and dynamics using cFOOT-seq.
Heng WANG ; Ang WU ; Meng-Chen YANG ; Di ZHOU ; Xiyang CHEN ; Zhifei SHI ; Yiqun ZHANG ; Yu-Xin LIU ; Kai CHEN ; Xiaosong WANG ; Xiao-Fang CHENG ; Baodan HE ; Yutao FU ; Lan KANG ; Yujun HOU ; Kun CHEN ; Shan BIAN ; Juan TANG ; Jianhuang XUE ; Chenfei WANG ; Xiaoyu LIU ; Jiejun SHI ; Shaorong GAO ; Jia-Min ZHANG
Protein & Cell 2025;16(11):932-952
Gene regulation relies on the precise binding of transcription factors (TFs) at regulatory elements, but simultaneously detecting hundreds of TFs on chromatin is challenging. We developed cFOOT-seq, a cytosine deaminase-based TF footprinting assay, for high-resolution, quantitative genome-wide assessment of TF binding in both open and closed chromatin regions, even with small cell numbers. By utilizing the dsDNA deaminase SsdAtox, cFOOT-seq converts accessible cytosines to uracil while preserving genomic integrity, making it compatible with techniques like ATAC-seq for sensitive and cost-effective detection of TF occupancy at the single-molecule and single-cell level. Our approach enables the delineation of TF footprints, quantification of occupancy, and examination of chromatin influences on TF binding. Notably, cFOOT-seq, combined with FootTrack analysis, enables de novo prediction of TF binding sites and tracking of TF occupancy dynamics. We demonstrate its application in capturing cell type-specific TFs, analyzing TF dynamics during reprogramming, and revealing TF dependencies on chromatin remodelers. Overall, cFOOT-seq represents a robust approach for investigating the genome-wide dynamics of TF occupancy and elucidating the cis-regulatory architecture underlying gene regulation.
Transcription Factors/genetics*
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Humans
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Chromatin/genetics*
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Animals
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Binding Sites
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Mice
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DNA Footprinting/methods*
4.Research progress in energy metabolism design of cell factories.
Yiqun YANG ; Qingqing LIU ; Shuo TIAN ; Tao YU
Chinese Journal of Biotechnology 2025;41(3):1098-1111
Energy metabolism regulation plays a pivotal role in metabolic engineering. It mainly achieves the balance of material and energy metabolism or maximizes the utilization of materials and energy by regulating the supply intensity and mode of ATP and reducing electron carriers in cells. On the one hand, the production efficiency can be increased by changing the distribution of material metabolic flow. On the other hand, the thermodynamic parameters of enzyme-catalyzed reactions can be altered to affect the reaction balance, and thus the production costs are reduced. Therefore, energy metabolism regulation is expected to become a favorable tool for the modification of microbial cell factories, thereby increasing the production of target metabolites and reducing production costs. This article introduces the commonly used energy metabolism regulation methods and their effects on cell factories, aiming to provide a reference for the efficient construction of microbial cell factories.
Energy Metabolism/physiology*
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Metabolic Engineering/methods*
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Adenosine Triphosphate/metabolism*
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Industrial Microbiology/methods*
5.PENG Peichu's Experience in Staged Differentiation and Treatment of Prostate Cancer
Xinyu XU ; Yu PENG ; Wenjing ZHU ; Jing ZHAI ; Dongya SHENG ; Mingyang WANG ; Yiqun SHAO ; Boyang LI ; Qi ZHONG
Journal of Traditional Chinese Medicine 2024;65(7):678-683
This paper summarized Professor PENG Peichu's experience in the differentiation and treatment of prostate cancer in three phases and four stages. It is considered that prostatic cancer is categorized into root deficiency and branch excess, with depletion of healthy qi as the root, and the accumulation of cancer toxin as the minifestation. Clinical diagnosis and treatment of prostatic cancer can be divided into three phases and four stages according to the exuberance and decline of pathogenic and healthy qi and the changes of deficiency and excess of yin and yang. In the initial accumulation phase of cancer toxin (yang excess stage), the key pathogenesis is the accumulation of dampness, heat and static blood, and internal generation of cancer toxin, and the treatment should be resolving toxins, fighting cancer and dispelling yang excess. In the phase of healthy qi deficiency and toxin accumulation (yin deficiency stage), with the lung and kidney yin deficiency, dampness, heat and static toxin accumulation as the key pathogenesis, the treatment should be centered on mutual generation between metal and water to nourish kidney yin, supplemented with the method of clearing heat and draining dampness, activating blood and resolving toxins, for which self-made Nanbei Formula(南北方)is usually used. In the phase of yang deficiency and cold stagnation (yang deficiency stage and yin excess stage), with the spleen and kidney yang deficiency, cold dampness stagnation, static heat and toxin accumulation as the key pathogenesis, the treatment should be warming and tonifying spleen and kidney to dissipate cold accumulation; for deficiency of both yin and yang, and excess pathogen obstruction, modified Yanghe Decoction(阳和汤) is recommended, while for yang deficiency, cold congealing and blood stasis, self-made Wenshen Sanjie Formula(温肾散结方) can be used, and for cold dampness binding with cancer toxin, and cold complex with heat, self-made Quanan Formula (泉安方) is advised.
6.Neural substrates for regulating self-grooming behavior in rodents
LI GUANQING ; LU CHANYI ; YIN MIAOMIAO ; WANG PENG ; ZHANG PENGBO ; WU JIALIANG ; WANG WENQIANG ; WANG DING ; WANG MENGYUE ; LIU JIAHAN ; LIN XINGHAN ; ZHANG JIAN-XU ; WANG ZHENSHAN ; YU YIQUN ; ZHANG YUN-FENG
Journal of Zhejiang University. Science. B 2024;25(10):841-856
Grooming,as an evolutionarily conserved repetitive behavior,is common in various animals,including humans,and serves essential functions including,but not limited to,hygiene maintenance,thermoregulation,de-arousal,stress reduction,and social behaviors.In rodents,grooming involves a patterned and sequenced structure,known as the syntactic chain with four phases that comprise repeated stereotyped movements happening in a cephalocaudal progression style,beginning from the nose to the face,to the head,and finally ending with body licking.The context-dependent occurrence of grooming behavior indicates its adaptive significance.This review briefly summarizes the neural substrates responsible for rodent grooming behavior and explores its relevance in rodent models of neuropsychiatric disorders and neurodegenerative diseases with aberrant grooming phenotypes.We further emphasize the utility of rodent grooming as a reliable measure of repetitive behavior in neuropsychiatric models,holding promise for translational psychiatry.Herein,we mainly focus on rodent self-grooming.Allogrooming(grooming being applied on one animal by its conspecifics via licking or carefully nibbling)and heterogrooming(a form of grooming behavior directing towards another animal,which occurs in other contexts,such as maternal,sexual,aggressive,or social behaviors)are not covered due to space constraints.
7.Congenital tooth agenesis-related EDAR variants and pedigree analysis of HED patients with two variants
Rong LAN ; Qinggang DAI ; Kang YU ; Xiaoling BIAN ; Lijuan YE ; Yiqun WU ; Feng WANG
Journal of Shanghai Jiaotong University(Medical Science) 2024;44(6):694-701
Objective·To explore EDAR(ectodysplasin A receptor)gene variants that lead to congenital tooth agenesis,and preliminarily analyze the reasons why variants in EDAR can cause both syndromic and non-syndromic tooth agenesis.Methods·Patients with congenital tooth agenesis admitted to the Department of 2nd Dental Center,Shanghai Ninth People's Hospital,Shanghai Jiao Tong University School of Medicine and their family members were included,and genomic DNA from their peripheral blood was extracted for whole exome sequencing(WES).After preliminary screening,PolyPhen-2,Mutation Taster,and Provean were used to predict the harmfulness of potential variants.The screened variants in patients and their families were verified by Sanger sequencing.Conservation analysis of variants was performed,and Swiss-Model was used to analyze the changes in the three-dimensional structure of EDAR.The teeth and syndromic phenotype of the patients and their family members were investigated.Results·Among the included congenital tooth agenesis patients,five patients with EDAR mutations were found,one with EDAR frameshift mutation c.368_369insC(p.L123fs)and the other four with EDAR missense mutations.Two of these four patients were diagnosed as non-syndromic tooth agenesis(NSTA),resulted from c.77C>A(p.A26E)homozygous mutation and c.380C>T(p.P127L)heterozygous mutation,respectively.The other two patients with two variants were diagnosed as hypohidrotic ectodermal dysplasia(HED).One compound heterozygous missense mutation patient carried EDAR c.77C>T(p.A26V)from her father andEDAR c.1281G>C(p.L427F)from her mother;the other patient with both EDAR and EDA mutations carried EDAR c.1138A>C(p.S380R)heterozygous mutation and EDA c.1013C>T(p.T338M)hemizygous mutation.Both variants were from his mother and were reported to be related with NSTA.Two of these missense mutations,EDAR c.1281G>C(p.L427F)and EDAR c.77C>A(p.A26E),had not been reported before.The missense mutations affected the protein's spatial conformation by altering the polarity,charge,or volume of the amino acid residues.The frameshift mutation caused a non-triplet base addition,which probably led to protein truncation or degradation.Conclusion·Two new EDAR missense mutations are discovered.An NSTA patients with EDAR homozygous mutations and an HED patient with both EDA and EDAR mutations are reported.It expands the understanding of pathogenic mechanisms of EDAR mutations causing HED and NSTA.
8.Evaluation of the efficacy and safety of Xiao′er Huangjin Zhike Granules in the treatment of acute bronchitis-caused cough (syndrome of phlegm-heat obstructing the lung) in children
Jun LIU ; Mengqing WANG ; Xiuhong JIN ; Yongxue CHI ; Chunying MA ; Xiaohui LIU ; Yiqun TENG ; Meiyun XIN ; Fei SUN ; Ming LIU ; Ling LU ; Xinping PENG ; Yongxia GUO ; Rong YU ; Quanjing CHEN ; Bin WANG ; Tong SHEN ; Lan LI ; Pingping LIU ; Xiong LI ; Ming LI ; Guilan WANG ; Baoping XU
Chinese Journal of Applied Clinical Pediatrics 2024;39(10):774-779
Objective:To evaluate the efficacy and safety of Xiao′er Huangjin Zhike Granules in the treatment of cough caused by acute bronchitis in children, which is defined in TCM terms as a syndrome of phlegm-heat obstructing the lung.Methods:This was a block-randomized, double-blind, placebo-controlled, multicenter clinical trial.From January 2022 to September 2023, 359 children aged 3 to 7 years old diagnosed as acute bronchitis (lung-obstructing phlegm-heat syndrome) were enrolled from 21 participating hospitals and randomly assigned to the experimental group and placebo group in a 3︰1 ratio, and respectively treated with Xiao′er Huangjin Zhike Granules and its matching placebo.Cough resolution/general resolution rate after 7 days of treatment was used as the primary efficacy outcome for both groups.Results:(1)On the seventh day of treatment, the rate of cough disappearance/basically disappearance in the experimental group and placebo group were 73.95% and 57.61% retrospectively, which had statistically significance ( P=0.001).(2)After 7 days of treatment, the median duration of cough disappearance/basic disappearance were 5 days and 6 days in the two groups , with a statistically significant difference ( P=0.006).The area under the curve of cough symptom severity time was 7.20 ± 3.79 in the experimental group and 8.20±4.42 in the placebo group.The difference between the two groups was statistically significant ( P=0.039).(3) After 7 days of treatment, the difference between TCM syndrome score and baseline was -16.0 (-20.0, -15.0) points in the experimental group and -15.0 (-18.0, -12.0) points in the placebo group, with significant difference between the two groups ( P=0.004).In the experimental group, the clinical control rate, the markedly effective rate, the effective rate and the ineffective rate were 49.04%, 28.35%, 16.48% and 6.13% severally; and in the placebo group, the clinical control rate, the markedly effective rate, the effective rate and the ineffective rate were 38.04%, 26.09%, 29.35%, and 6.52% separately, which had statistically significant ( P=0.014).(4) There was no significant difference in the incidence of adverse events or adverse reactions during the trial between both groups.Moreover, while adverse reactions in the form of vomiting and diarrhea were occasionally reported, no serious drug-related adverse event or adverse reaction was reported.(5)The tested drug provided good treatment compliance, showing no statistically significant difference from the placebo in terms of compliance rate. Conclusions:Based on the above findings, it can be concluded that Xiao′er Huangjin Zhike Granules provides good safety, efficacy, and treatment compliance in the treatment of cough caused by acute bronchitis, and lung-obstructing phlegm-heat syndrome, in children.
9.Comparison of Jinzhen oral liquid and ambroxol hydrochloride and clenbuterol hydrochloride oral solution in the treatment of acute bronchitis in children: A multicenter, non-inferiority, prospective, randomized controlled trial.
Qinhua FAN ; Chongming WU ; Yawei DU ; Boyang WANG ; Yanming XIE ; Zeling ZHANG ; Wenquan SU ; Zizhuo WANG ; Changchang XU ; Xueke LI ; Ying DING ; Xinjiang AN ; Jing CHEN ; Yunying XIAO ; Rong YU ; Nan LI ; Juan WANG ; Yiqun TENG ; Hongfen LV ; Nian YANG ; Yuling WEN ; Xiaoli HUANG ; Wei PAN ; Yufeng LIU ; Xueqin XI ; Qianye ZHAO ; Changshan LIU ; Jian XU ; Haitao ZHANG ; Lie ZHUO ; Qiangquan RONG ; Yu XIA ; Qin SHEN ; Shao LI ; Junhong WANG ; Shengxian WU
Acta Pharmaceutica Sinica B 2024;14(12):5186-5200
The comparison between traditional Chinese medicine Jinzhen oral liquid (JZOL) and Western medicine in treating children with acute bronchitis (AB) showed encouraging outcomes. This trial evaluated the efficacy and safety of the JZOL for improving cough and expectoration in children with AB. 480 children were randomly assigned to take JZOL or ambroxol hydrochloride and clenbuterol hydrochloride oral solution for 7 days. The primary outcome was time-to-cough resolution. The median time-to-cough resolution in both groups was 5.0 days and the antitussive onset median time was only 1 day. This randomized controlled trial showed that JZOL was not inferior to cough suppressant and phlegm resolving western medicine in treating cough and sputum and could comprehensively treat respiratory and systemic discomfort symptoms. Combined with clinical trials, the mechanism of JZOL against AB was uncovered by network target analysis, it was found that the pathways in TRP channels like IL-1β/IL1R/TRPV1/TRPA1, NGF/TrkA/TRPV1/TRPA1, and PGE2/EP/PKA/TRPV1/TRPA1 might play important roles. Animal experiments further confirmed that inflammation and the immune regulatory effect of JZOL in the treatment of AB were of vital importance and TRP channels were the key mechanism of action.
10.Introduction to revision of Technical Specification for Occupational Health Surveillance
Chen YU ; Dehong LI ; Daoyuan SUN ; Zubing WANG ; Chaoqiang JIANG ; Xunmiao ZHANG ; Yongjian YAN ; Weiming YUAN ; Yiqun XUAN ; Xin QIAO ; Yujing XIA ; Qiuhong ZHU ; Qiang HOU ; Hong WANG ; Yiwen JIANG ; Xuetao ZHANG ; Fang QI ; Xiangpei LÜ ; Huanqiang WANG
China Occupational Medicine 2023;50(2):209-216
To revise GBZ 188 Technical Specification for Occupational Health Surveillance based on national laws, regulations, standards, specifications and legal documents of occupational disease, and combination with the actual situation in China. The main modifications are as follows: the occupational health surveillance for workers exposed to toluene (xylene may implement by reference), bromopropane, methyl iodide, ethylene oxide, chloroacetic acid, indium and its compounds, coal tar, coal tarasphalt, asphalt, β-naphthylamine, dust of metal and its compounds(tin, iron, antimony, barium and its compounds), hard metal dust, erionite dust, low temperature, laser, tick-borne encephalitis virus, Borrelia burgdorferi, and human immunodeficiency virus, for scraper or grind operators, and underground workers using squatting or kneeling position, crawling position, side-lying position, or shoulder position for a long period of time are included. The emergency health screening for workers exposed to arsenic, fluorine and its inorganic compounds, and acrylamide are included. The occupational medical examination (OME) for workers exposed to amino and nitro compounds of benzene, phosgene, monomethylamine, organic fluorine and dimethyl sulfate has been adjusted and made mandatory, with corresponding assessments required upon leaving the job. The special occupational health surveillance for workers exposed to mycobacterium tuberculosis and hepatitis virus is removed. The OME conclusion of reexamination is removed, and standardize recheck/additional inspection requirements. The optional items in OME performed before, during and after leaving post are removed, but the optional items in emergency medical examination are retained. Additional OME items are added. The Guideline for OME Summary Reports is added as informative appendix, and so on. The revised GBZ 188 Technical Specification for Occupational Health Surveillance is more scientific and practical.


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