OBJECTIVE: To review the research progress and challenges of poly (L-lactic acid) (PLLA) membrane in preventing tendon adhesion. METHODS: The relevant literature at home and abroad in recent years was extensively searched, covering the mechanism of tendon adhesion formation, the adaptation challenge and balancing strategy of PLLA, the physicochemical modification of PLLA anti-adhesion membrane and its application in tendon anti-adhesion. In this paper, the research progress and modification strategies of PLLA membranes were systematically reviewed from the three dimensions of tissue adaptation, mechanical adaptation, and degradation adaptation. RESULTS: The three-dimensional adaptation of PLLA membrane is optimized by combining materials (such as hydroxyapatite, polycaprolactone), structural design (multilayer/gradient membrane), and drug loading (anti-inflammatory drug). The balance between anti-adhesion and pro-healing is achieved, the mechanical adaptation significantly improve, and degradation is achieved (targeting the degradation cycle to 2-4 weeks to cover the tendon repair period). CONCLUSION In the future, it is necessary to identify the optimal balance point of three-dimensional fitness, unify the evaluation criteria and solve the degradation side effects through the co-design of physicochemical modification and drug loading system to break through the bottleneck of clinical translation.
Tissue Adhesions/prevention & control* ; Polyesters/chemistry* ; Humans ; Biocompatible Materials/chemistry* ; Tendons/surgery* ; Membranes, Artificial ; Tendon Injuries/surgery* ; Wound Healing ; Animals ; Durapatite/chemistry*

OBJECTIVE To study the difference of Huangqin decoction combined with Paeoniae Radix Alba(BS) and Paeoniae Radix Rubra(CS)'s effect on ulcerative colitis(UC) based on network pharmacological analysis and animal experiment. METHODS The active constituents of BS and CS were retrieved from TCMSP database and literature, and the potential target was predicted by Swiss Target Prediction. Ulcerative Colitis was used as key words to search disease targets in DisGenet, OMIM, and Genecard databases. The intersection target was obtained by Venny 2.1.0. Cytoscape 3.7.2 software was used to construct network of drug-consumption targets. The STRING platform was used for protein-protein interaction(PPI) network analysis, and Metascape database was applied for GO/WIKI analysis. A dextran sulfate sodium(DSS) induced UC mouse model was established to compare the anti-UC effects of Huangqing decoction combined with BS(HQT-BS) and CS(HQT-CS), respectively. RESULTS There were 7 active components of HQT-BS and 11 active components of HQT-CS in the treatment of ulcerative colitis, respectively, 5 of which were the same. There were 146 and 157 targets respectively, 106 of which were the same. The core targets of HQT-BS were SRC, HSP90AA1, and PIK3R1, while the core targets of HQT-CS were SRC, HSP90AA1, and STAT3. WIKI enrichment analysis showed that several signaling pathways were shared by both BS and CS, such as EGFR tyrosine kinase inhibitor resistance, Notch signaling pathway. EGF/EGFR signaling pathway was the specific pathway related to BS, while Nuclear receptors meta-pathway and Kit receptor signaling pathway were the specific pathways related to CS, respectively. Animal experiments showed that both HQT-BS and HQT-CS could significantly improve colon shortening and tissue pathological alternation induced by DSS. However, HQT-CS was more effective in reducing the expression of interleukin-6 and neurogenic locus notch homolog protein1. CONCLUSION Both HQT-BS and HQT-CS have anti-UC effect, and HQT-CS is the better one.

Referring to ZHANG Xichun's experience in treating dysentery from cold-fire accumulation， the treatment of ulcerative colitis （UC） in this paper can be divided into three stages including cold-fire accumulation stage， excessive heat and putrid intestine stage， and healthy qi deficiency and pathogen lingering stage. For people with slippery and excess pulse in the cold-fire accumulation stage， Xiaochengqi Decoction （小承气汤） added with Baishao （Radix Paeoniae Alba） and Gancao （Radix et Rhizoma Glycyrrhizae） can be used for purgation， while those with deficient pulse， Huazhi Decoction （化滞汤） or Xieli Decoction （燮理汤） can be used. In the excessive heat and putrid intestine stage， Tongbian Baitouweng Decoction （通变白头翁汤） and Jiedu Shenghua Elixir （解毒生化丹） are suggested. In the healthy qi deficiency and pathogen lingering stage， it is advised to use Jiedu Shenghua Elixir added with Shanyao （Rhizoma Dioscoreae）， and Sanbao Porridge （三宝粥）. Additionally， the medication rules， dosage and administration characteristics of Huanglian （Rhizoma Coptidis）-Rougui （Cortex Cinnamomi）， Yadanzi （Fructus Bruceae）， Diyu （Radix Sanguisorbae）， Shanyao and Liuhuang （Sulphur） by ZHANG Xichun have been summarized with the help of modern pharmacological research， so as to provide new ideas for the treatment of UC by TCM.

Objective The objective of this study was to provide methodological references for the inheritance of the experience of well-known Chinese medicine doctors in the treatment of kidney disease.Methods The study collected medical case data for IgA nephropathy,diagnosed and treated by Professor Yang Nizhi's outpatient department at Guangdong Provincial Hospital of Traditional Chinese Medicine from 2010 to 2020.The data was standardized and divided into three groups:urine and blood,urine turbidity,and renal failure groups.The study utilized the FangNet platform to apply the PageRank algorithm and calculate the THScore of different subgroups of core herbs for IgA nephropathy.The distribution pattern of syndrome differentiation and corresponding herb use regulations were visualized through Python(SciPy package,Clusterheatmap package),and the study explored and verified the drug prescription through exploratory and confirmatory factor analysis based on Pearson correlation coefficient.The weighted least squares estimation mean and variance adjusted(WLSMV)and the oblique rotated GEOMIN method were used with the Mplus software.Results The study included a total of 548 treatments for 145 patients with IgA nephropathy,with heamturia group(54 cases),urine turbidity group(51 cases),and renal failure group(40 cases).Results showed 9 basic syndromes such as Qi deficiency syndrome(91.79%),blood stasis syndrome(77.01%),damp-heat syndrome(66.06%),and Yin deficiency syndrome(38.69%).There are 24 core drugs in total,23 in the urine and blood group,21 in the urine turbidity group,and 16 in the renal failure group.These drugs mainly include qi-tonifying and yang-invigorating drugs,nourishing yin and blood drugs,promoting blood circulation and removing blood stasis drugs,and clearing heat and cooling blood drugs.The regulations for the differentiation and medication of IgA nephropathy(Z-Score>0.5 and P<0.05)were as follows:Huangqi,Shan Zhu Yu,and Tusizi were commonly used in Qi deficiency syndrome;Danshen,Ze Lan,and Shan Zhu Yu were commonly used in blood stasis syndrome;Pu Gong Ying,Shi Wei,Tao Ren,and Tu Fu Ling were commonly used in damp-heat syndrome;and Mo Han Lian,Tai Zi Shen,and Nv Zhen Zi were commonly used in Yin deficiency syndrome.Through exploratory and confirmatory factor analysis,the core drug combination factors for the treatment of IgA nephropathy by Professor Yang Nizhi were obtained as follows:F1(Tusizi,Shan Zhu Yu,Huangqi);F2(White Mao Gen,Xiao Ji,Qian Cao);F3(Nv Zhen Zi,Mo Han Lian,Tai Zi Shen);and F4(Ze Lan,Tao Ren).Conclusion This study analyzed the diagnosis and treatment experience of Professor Yang Nizhi in the treatment of IgA nephropathy by grouping,defining the core syndrome of"Qi deficiency and blood stasis,damp-heat and Yin deficiency",and the core treatment methods of"tonifying Qi,promoting blood circulation,clearing heat,and nourishing Yin"using the PageRank algorithm and Mplus factor analysis.The study provided methodological references for the inheritance of the experience of famous Chinese medicine doctors and promoted the development and utilization of traditional Chinese medicine.

The human gastrointestinal tract is the largest reservoir of bacteria in the body,inhabiting a very complex and active microbial community.Under normal circumstances,the interaction between the intestinal flora and the host maintains a dynamic balance.Spleen deficiency syndrome is a common classic syndrome type in TCM clinical practice.A large number of studies have shown that spleen deficiency syndrome is closely related to intestinal microorganisms,and the balance of intestinal flora is the basis for the normal functioning of the spleen's main transportation and transformation functions.Intestinal flora imbalance can lead to a series of manifestations of spleen deficiency.In addition,intestinal flora is an important medium for the metabolism of polysaccharide components and the effectiveness of traditional Chinese medicine for invigorating the spleen,and traditional Chinese medicine for invigorating the spleen can also play a therapeutic role by regulating the structure and quantity of intestinal flora.This article summarizes the relationship between intestinal flora and spleen deficiency syndrome in physiology,pathology,and the efficacy of traditional Chinese medicine for invigorating the spleen.Based on intestinal flora,the study of spleen deficiency syndrome aims to provide some thoughts and suggestions for revealing the connotation of spleen deficiency syndrome in traditional Chinese medicine.

Hepatocellular carcinoma(HCC)is one of the most common tumor types and remains a major clinical challenge.Increasing evidence has revealed that mitophagy inhibitors can enhance the effect of chemotherapy on HCC.However,few mitophagy inhibitors have been approved for clinical use in humans.Pyrimethamine(Pyr)is used to treat infections caused by protozoan parasites.Recent studies have reported that Pyr may be beneficial in the treatment of various tumors.However,its mechanism of action is still not clearly defined.Here,we found that blocking mitophagy sensitized cells to Pyr-induced apoptosis.Mechanistically,Pyr potently induced the accumulation of autophagosomes by inhibiting autophagosome-lysosome fusion in human HCC cells.In vitro and in vivo studies revealed that Pyr blocked autophagosome-lysosome fusion by upregulating BNIP3 to inhibit synaptosomal-associated protein 29(SNAP29)-vesicle-associated membrane protein 8(VAMP8)interaction.Moreover,Pyr acted synergistically with sorafenib(Sora)to induce apoptosis and inhibit HCC proliferation in vitro and in vivo.Pyr enhances the sensitivity of HCC cells to Sora,a common chemotherapeutic,by inhibiting mitophagy.Thus,these results provide new insights into the mechanism of action of Pyr and imply that Pyr could potentially be further developed as a novel mitophagy inhibitor.Notably,Pyr and Sora combination therapy could be a promising treatment for malignant HCC.

Objective:The aim of noise quality management for ICU patients was to explore the clinical feasibility of noise quality management.Methods:A randomized controlled trial method and convenient sampling method were used to select 240 patients treated in the ICU of Shanghai Fengxian District Central Hospital from April 2021 to March 2023 as the study objects. According to the time of admission, 120 patients admitted from April 2021 to March 2022 were divided into the control group. A total of 120 patients admitted to hospital from April 2022 to March 2023 were included in the intervention group. The control group was given routine care, and noise quality management was implemented in the intervention group on the basis of routine care. The noise decibel value, sleep quality, incidence of delirium and patient satisfaction of the two groups were compared.Results:In the intervention group, there were 69 males and 51 females, aged (56.08 ± 5.74) years old. The control group included 68 males and 52 females, aged (56.11 ± 5.72) years old. The decibels of day and night in ICU of the intervention group were (42.62 ± 1.33) and (38.72 ± 1.28) dB, which were lower than those of the control group (67.49 ± 2.36) and (59.65 ± 2.37) dB, with statistically significant differences ( t=100.57, 85.12, both P<0.05). Total score of sleep quality of patients in the intervention group (78.40 ± 5.86) was higher than that of the control group (60.49 ± 6.25), with statistically significant differences ( t=24.32, P<0.05). The incidence of delirium in the intervention group 12.50%(15/120), was lower than that in the control group 26.67%(32/120) with a statistically significant difference ( χ2=7.65, P<0.05). Satisfaction of patients in the intervention group 97.50%(117/120) was higher than that in the control group 90.00%(108/120), with a statistically significant difference ( χ2=5.76, P<0.05). Conclusions:The application of noise quality management for ICU patients is conducive to improving the overall environment of the ward, improving the sleep quality of patients, reducing the occurrence of patients′ delirium and improving patient satisfaction.

Objective To investigate the distribution of TCM syndromes and syndrome elements of irritable bowel syndrome(IBS);To provide reference for clinical TCM syndrome differentiation and treatment.Methods The patients with IBS who filled in the questionnaire were collected from 18 tertiary Chinese medicine hospitals in China from November 2019 to December 2022,including Xiyuan Hospital,China Academy of Chinese Medical Sciences,Guangdong Provincial Hospital of Traditional Chinese Medicine,the First Affiliated Hospital of Henan University of Traditional Chinese Medicine.The contents of questionnaire included the patients'general condition,medical history(onset time,condition changes),Rome Ⅳ symptom diagnostic scale,somatic symptom cluster scale,quality of life scale,hospital anxiety and depression scale,TCM syndromes,etc.The methods of factor analysis and systematic clustering analysis were used,the factors of disease and syndrome were extracted,and the classification of TCM syndrome types was summarized.Results Totally 157 patients were included,87 were male and 70 were female.The age was from 18 to 74 years old.The longest course of disease was 30 years and the shortest was 3 months,with an average of(48.31±5.61)months.Anxiety score:was 3.66±0.30,depression score was 3.39±0.28.The most common TCM symptom was emotional distress(83.4%),followed by diarrhea(80.9%)and abdominal pain(72.6%).The results of factor analysis showed that rotation finally converged after 16 iterations,and 8 common factors and 33 variables were obtained,with a cumulative contribution rate of 60.016%.The sites of IBS were mainly distributed in liver,spleen,large intestine and stomach.The main syndrome factors were qi stagnation,phlegm,dampness,heat and yang deficiency.The results of clustering analysis of 8 common factors showed that the main TCM syndrome types were liver depression and qi stagnation syndrome,damp-heat internal accumulation syndrome,liver depression and spleen deficiency syndrome,and liver-stomach digression syndrome.The main TCM syndrome of diarrhea-predominant IBS was liver stagnation and spleen deficiency syndrome,and the main TCM syndrome of mixed type and constipation type was damp-heat accumulation syndrome.There were statistically significant differences in the distribution of TCM syndrome types in patients with different types(P<0.05).Conclusion The location of IBS is mainly in liver,spleen and large intestine,especially in liver.The TCM syndrome types are mainly liver depression and qi stagnation syndrome,damp-heat internal accumulation syndrome,liver depression and spleen deficiency syndrome.

The purpose of this study is to establish and apply a correction method for titanium alloy implant in spinal IMRT plan, a corrected CT-density table was revised from normal CT-density table to include the density of titanium alloy implant. Dose distribution after and before correction were calculated and compared to evaluate the dose deviation. Plans were also copied to a spinal cancer simulation phantom. A titanium alloy fixation system for spine was implanted in this phantom. Plans were recalculated and compared with the measurement result. The result of this study shows that the max dose of spinal cord showed significant difference after correction, and the deviation between calculation results and measurement results was reduced after correction. The method for expanding the range CT-density table, which means that the density of titanium alloy was included, can reduce the error in calculation.
Radiotherapy, Intensity-Modulated/methods* ; Titanium ; Radiotherapy Dosage ; Alloys ; Radiometry/methods* ; Radiotherapy Planning, Computer-Assisted/methods*

Objectives To evaluate the 3D printed navigation template used to assist axis pedicle lag-screw placement in the treatment of atypical Hangman's fracture(AHF).Methods From May 2015 to January 2017,12 patients with AHF were treated at Department of Orthopedics,The Fourth Peopled Hospital of Zigong.In their operation,the axis pedicle lag-screw placement was assisted by a 3D printed navigation template.They were 8 men and 4 women,aged from 27 to 53 years(average,45.6 years).There were 7 cases of type Ⅰ,4 cases type Ⅱ and one case of type HA according to the Levine-Edwards classification.There were 2 cases of grade D and 12 cases of grade E according to the assessment of America Spinal Injury Association(ASIA).Their preoperative and postoperative neck pain was evaluated by visual analogue scale(VAS);their preoperative and postoperative ranges of cervical motion were recorded and compared.To evaluate the postoperative safety of screws,the insertion point,position within the pedicle,axial angle and sagittal angle of the screws and maximum fracture displacement were compared between actual operation and simulative operation.Results A total of 12 guide plates were designed and printed;a total of 24 lag-screws were placed.All patients underwent surgery uneventfully.They were followed up for 12 to 20 months,with an average of 14.7 months.Two patients with ASIA grade D recovered to ASIA grade E at the last follow-up.All patients showed a significant improvement in neck pain.Their VAS score at 5 days after surgery(5.86±2.02) was significantly lower than their preoperative score(8.29±1.88)(P<0.05) and their VAS score at the last follow-up(1.73±0.87) was also significantly lower than that at 5 days after surgery(P<0.05).Their range of cervical motion at 6 months after surgery was significantly larger than that at 3 months after surgery(P<0.05);their range of cervical motion returned to normal roughly at the last follow-up,showing no significant difference from that at 6 months(P>0.05).Their postoperative X-ray and CT images showed that the dislocation was all corrected.The last follow-up showed no obvious vertebral instability,screw breakage or loosening.Postoperative CT showed that the 24 screws had been located completely in the pedicle(grade 0),indicating that the screw placement was 100% accurate.The postoperative deviation at insertion point(0.70±0.78 mm),deviation within the pedicle(1.3±0.82 mm),axial angle(8.26°±0.88°) and sagittal angle(22.62°±0.86°) of the screws showed no significant differences from the preoperative simulative data(P>0.05).There was a significant difference in the maximum fracture displacement between the preoperative data(3.94±0.38 mm) and the postoperative data(2.21±0.39 mm)(P<0.05).Conclusion The 3D printed navigation template can be used to better assist axis pedicle lag-screw placement in the treatment of AHF,because it ensures safe screw placement,leading to good reduction and fixation and precise match with the preoperative plan.