1.Status of Clinical Practice Guideline Information Platforms
Xueqin ZHANG ; Yun ZHAO ; Jie LIU ; Long GE ; Ying XING ; Simeng REN ; Yifei WANG ; Wenzheng ZHANG ; Di ZHANG ; Shihua WANG ; Yao SUN ; Min WU ; Lin FENG ; Tiancai WEN
Medical Journal of Peking Union Medical College Hospital 2025;16(2):462-471
Clinical practice guidelines represent the best recommendations for patient care. They are developed through systematically reviewing currently available clinical evidence and weighing the relative benefits and risks of various interventions. However, clinical practice guidelines have to go through a long translation cycle from development and revision to clinical promotion and application, facing problems such as scattered distribution, high duplication rate, and low actual utilization. At present, the clinical practice guideline information platform can directly or indirectly solve the problems related to the lengthy revision cycles, decentralized dissemination and limited application of clinical practice guidelines. Therefore, this paper systematically examines different types of clinical practice guideline information platforms and investigates their corresponding challenges and emerging trends in platform design, data integration, and practical implementation, with the aim of clarifying the current status of this field and providing valuable reference for future research on clinical practice guideline information platforms.
2.Terms Related to The Study of Biomacromolecular Condensates
Ke RUAN ; Xiao-Feng FANG ; Dan LI ; Pi-Long LI ; Yi LIN ; Zheng WANG ; Yun-Yu SHI ; Ming-Jie ZHANG ; Hong ZHANG ; Cong LIU
Progress in Biochemistry and Biophysics 2025;52(4):1027-1035
Biomolecular condensates are formed through phase separation of biomacromolecules such as proteins and RNAs. These condensates exhibit liquid-like properties that can futher transition into more stable material states. They form complex internal structures via multivalent weak interactions, enabling precise spatiotemporal regulations. However, the use of inconsistent and non-standardized terminology has become increasingly problematic, hindering academic exchange and the dissemination of scientific knowledge. Therefore, it is necessary to discuss the terminology related to biomolecular condensates in order to clarify concepts, promote interdisciplinary cooperation, enhance research efficiency, and support the healthy development of this field.
3.C-X3-C motif chemokine ligand 1/C-X3-C motif chemokine receptor 1 pathway in the recovery of memory function in hemorrhagic shock/resuscitation rats
Xiao-Jun WU ; Ri-Xing WANG ; Fang-Chong LIN ; You-Kai LÜ ; Qi-Tao FENG ; Tian-Qi YUN
Acta Anatomica Sinica 2024;55(2):158-166
Objective To investigate the effect of microglia activation regulated by C-X3-C motif chemokine ligand 1(CX3CL1)-C-X3-C motif chemokine receptor 1(CX3CR1)pathway on memory function in hemorrhagic shock/resuscitation rats.Methods The experiment was divided into two parts.In the first part,the rats were randomly divided into sham group,model-0.5 hour group,model-1.5 hour group,model-3 hour group,10 rats in each group.There were differences in the time of hemorrhagic shock among each group.In the second part,rats were randomly divided into control group and CX3CL1 group,10 rats in each group.The rats in CX3CL1 group were treated with CX3CL1 protein factor(intraventricular injection),and the rats in control group were treated with saline.All rats were trained in Morris water maze experiments before model construction,and tests of Morris water maze experiments were carried out after 4 days of model construction.After completion,the whole brains were taken for HE staining and immunohistochemical staining.Cerebrospinal fluid was taken for detection of inflammatory cytokines,and hippocampus tissues were taken for Real-time PCR detection and Western blotting detection.Results Compared with the sham group,the escape latency of rats in model group increased,the number of platform crossings and the resident time in the third quadrant decreased.The neuronal state was impaired in HE staining in model group.In addition,compared with the sham group,the expression of ionized calcium binding adaptor molecule-1(Iba1)in the brain of the rats in model group increased,the contents of tumor necrosis factor-α(TNF-α)and interleukin(IL)-6 in the cerebrospinal fluid increased,and the M1-type microglia markers CD16,TNF-α,IL-1β and inducible nitric oxide synthase(iNOS)mRNA content increased.At the same time,compared with the sham group,the expressions of CX3CL1 and CX3CR1 in the brain of model group decreased,and the expressions of phosphorylated nuclear factor-κB(p-NF-κB)and nucleotide binding oligomerization domain(NOD)-like receptor protein 3(NLRP3)increased.However,compared with the control group,rats in CX3CL1 group had reduced escape latency,increased platform crossing times and quadrantⅢresident time,and recovered neuronal states.In addition,the expression of Iba1 in the brain of CX3CL1 group decreased,the contents of TNF-α and IL-6 in the cerebrospinal fluid decreased,the mRNA contents of M1-type microglia markers like CD16,TNF-α,IL-1β and iNOS decreased,and the mRNA contents of markers of M2-type microglia glial like CD206,transforming growth factor-β(TGF-β),arginase-1(Arg1),Chitinase 3-like protein 1(Ym 1)increased.Conclusion CX3CL1 can help inhibit the excessive activation of microglia,induce the polarization of microglia to M2 type,inhibit the polarization of M1 type,reduce the release of inflammatory cytokines,and alleviate the memory function damage induced by hemorrhagic shock/resuscitation.
4.Inflammatory pseudotumor-like follicular dendritic cell sarcoma of the spleen:2 cases report and literature review
Huan DU ; Li-Shuang LIN ; Zun-Guo DU ; Jie FAN ; Yun BAO ; Feng TANG ; Yuan-Yuan CHENG
Fudan University Journal of Medical Sciences 2024;51(1):128-132
Inflammatory pseudotumor-like follicular dendritic cell sarcoma(IPT-like FDCS)is a very rare malignant tumor that is considered to be associated with Epstein-Barr virus.Two patients in this report were generally healthy,and the spleen tumor was found during physical examination.After completing the examination,laparoscopic total splenectomy was performed,and the pathological result showed IPT-like FDCS.Postoperative chemoradiotherapy was not performed in either case.The disease has no characteristic clinical manifestations,and imaging overlaps with sarcoma.Microscopic manifestation showed CD21,CD23 and EBER positive spindle tumor cells in the inflammatory background with matted arrangement.Due to the interwoven distribution of tumor cells and lymphocytes,diagnosis is difficult.In this article,we report this two cases with literature review and summarize their clinical and pathological features to improve diagnostic cognition.
7.Effect of Simo decoction on the regulation of NLRP3/Caspase-1/GSDMD signal pathway on duodenal microinflammation in rats with functional dyspepsia
Qin LIU ; Xiao-Yuan LIN ; Ling-Feng YANG ; Qian LUO ; Yun-Zong HAN ; Si-Qing CHEN ; Hai-Yue ZHANG ; Shu ZHOU ; Sai-Nan ZHOU
The Chinese Journal of Clinical Pharmacology 2024;40(1):67-71
Objective To investigate the effects of Simo decoction on duodenal microinflammation and NOD-like receptor thermal protein domain associated protein 3(NLRP3)/cysteinyl aspartate-specific proteinase-1(Caspase-1)/gasdermin D(GSDMD)signaling pathway in rats with functional dyspepsia(FD).Methods The FD model was established by multifactorial method.SD rats were randomly divided into normal group,model group(FD model),positive control group(gavage administration of 0.305 mg·kg-1 mosapride injection)and experimental-H,-M,-L groups(gavage administration of 5.62,2.81,1.40 g·kg-1 Simo decoction).Small intestinal advancement rate and gastric emptying rate was determined;the levels of interleukin(IL)-1 β and IL-18 in serum were determined by enzyme linked immunosorbent assay(ELISA);the protein expression of NLRP3 and GSDMD in duodenal tissue was detected by Western blotting.Results The gastric emptying rates of normal,model,positive control and experimental-H,-M,-Lgroupswere(58.34±5.72)%,(29.16±8.37)%,(48.77±6.10)%,(48.35±6.04)%,(48.20±3.49)%and(39.24±4.20)%;the small intestinal propulsion rates were(82.01±7.55)%,(41.95±9.53)%,(64.61±10.18)%,(75.04±9.76)%,(60.58±7.13)%and(45.89±7.40)%;serum IL-1 β expression were(12.86±0.88),(43.73±4.60),(18.84±0.86),(24.61±1.57),(19.14±0.77)and(29.04±0.72)pg·mL-1;IL-18 expressions were(95.00±3.74),(170.60±8.78),(108.50±3.05),(118.90±3.45),(99.90±8.70)and(141.00±3.71)pg·mL-1;the relative expression levels of NLRP3 proteins were 0.32±0.02,0.84±0.05,0.42±0.03,0.48±0.02,0.61±0.04 and 0.62±0.05;the relative expression levels of GSDMD proteins were 0.34±0.05,0.93±0.06,0.35±0.03,0.52±0.02,0.53±0.06 and 0.55±0.05,respectively.Compared with the normal group,the above indexes in the model group have statistical significance;compared with the model group,the above indexes in the experimental-H group and the positive control group also have statistical significance(P<0.01 or P<0.05).Conclusion Simo decoction can effectively improve the general condition and duodenal microinflammation in FD rats,and the mechanism may be related to the inhibition of duodenal NLRP3/Caspase-1/GSDMD signaling pathway.
8.Clinical Observation on Acupuncture Combined with Shenqi Huoxue Decoction in the Treatment of Adenomyosis of Qi Deficiency and Blood Stasis Type
Tian-Si WU ; Chun-Min ZHANG ; Xiao-Hua LIN ; Yu-Xuan QIN ; Wen-Hui BIAN ; Feng YUN
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(6):1537-1542
Objective To observe the clinical effect of acupuncture combined with Shenqi Huoxue Decoction in the treatment of adenomyosis of qi deficiency and blood stasis type.Methods Seventy patients with adenomyosis of qi deficiency and blood stasis type were randomly divided into observation group and control group,35 cases in each group.The control group was treated with Levonorgestrel-releasing intrauterine system,and the observation group was treated with acupuncture combined with Shenqi Huoxue Decoction on the basis of the treatment of the control group.One menstrual cycle was a course of treatment,and the treatment lasted for three courses.After 3 months of treatment,the clinical efficacy of the two groups was evaluated,and the changes of Endometriosis Health Profile-5(EHP-5)score,serum superoxide dismutase(SOD)and catalase(CAT)were observed in the two groups before and after treatment.The changes of serum carbohydrate antigen CA125,carbohydrate antigen 199(CA199)and human epididymis protein 4(HE4)levels were compared before and after treatment between the two groups.Results(1)The total effective rate was 97.14%(34/35)in the observation group and 77.14%(27/35)in the control group.The clinical efficacy of the observation group was superior to that of the control group,and the difference was statistically significant(P<0.05).(2)After treatment,the levels of serum CA125,CA199 and HE4 in the two groups were significantly improved(P<0.05),and the improvement of serum CA1 25,CA199 and HE4 levels in the observation group was significantly superior to that in the control group,the difference was statistically significant(P<0.05).(3)After treatment,the levels of serum SOD and CAT in the two groups were significantly improved(P<0.05),and the improvement of serum SOD and CAT levels in the observation group was significantly superior to that in the control group,the difference was statistically significant(P<0.05).(4)After treatment,the EHP-5 score of quality of life in the two groups was significantly improved(P<0.05),and the EHP-5 score of quality of life in the observation group was significantly superior to that in the control group,the difference was statistically significant(P<0.05).Conclusion Acupuncture combined with Shenqi Huoxue Decoction in the treatment of adenomyosis of qi deficiency and blood stasis type can significantly improve the clinical symptoms of patients,regulate the levels of SOD and CAT,so as to improve the quality of life of patients,and the curative effect is significant.
9.The role and mechanism of miR-34a/SIRT1 in intensive care unit acquired weakness
Zheng-Xiao LIN ; Zhao-Xia XU ; Juan CHEN ; Jian HU ; Guo-Yun ZHU ; Zhong-Li ZHU ; Jian FENG ; Fu-Xiang LI
Medical Journal of Chinese People's Liberation Army 2024;49(7):796-803
Objective To investigate the role and underlying mechanisms of miR-34a/SIRT1 in intensive care unit acquired weakness(ICU-AW).Methods(1)C2C12 mouse skeletal muscle cells were induced to differentiate into myotubes,and were divided into two groups:model group[ICU-AW group,treated with lipopolysaccharides(LPS)for 12 hours]and normal control group(treated with the same amount of sterile water for 12 hours).Western blotting was used to detect the protein expression level of Muscle ring finger 1(MuRF-1),atrophy gene 1(Atrogin-1)and Sirtuin-1(SIRT1).RT-qPCR was used to assess the mRNA expression level of microRNA-34a(miR-34a),MuRF-1,Atrogin-1 and SIRT1,and light microscope was used to observe the growth and differentiation of C2C12 skeletal muscle cells in each group.(2)ICU-AW cells were further subdivided into control group(treated with siRNA transfection agent intervention),Scra siRNA group(treated with transfection agent and non-specific siRNA),miR-34a siRNA group(treated with transfection agent and specific siRNA intervention),vehicle group(treated with agonist solvent dimethyl sulfoxide)and SRT1720 group(treated with SIRT1 agonist SRT1720).Western blotting was used to detect the protein expression level of SIRT1,Atrogin-1 and MuRF-1 in each group.RT-qPCR was used to detect the miR-34a and the mRNA expression level of SIRT1,Atrogin-1 and MuRF-1 in each group.(3)In addition,another group of ICU-AW cells were divided into control group(treated with siRNA transfection),miR-34a siRNA group(treated with transfection agent and specific siRNA intervention),miR-34a siRNA+vehicle group(treated with transfection agent,specific siRNA and Dimethyl sulfoxide intervention)and miR-34a siRNA+EX-527 group(treated with transfection agent,specific siRNA and SIRT1 inhibitor EX-527).Western blotting was used to detect the protein expression level of Atrogin-1 and MuRF-1.RT-qPCR was used to assess the mRNA expression level of Atrogin-1 and MuRF-1.Results Myotube differentiation was observed on the 4th day.Compared with control group,myotube atrophy was obvious in ICU-AW group.RT-qPCR and Western blotting results revealed that,compared with normal control group,in ICU-AW group,the mRNA and protein expression levels of Atrogin-1 and MuRF-1 significantly increased(P<0.05),and the expression level of miR-34a significantly increased(P<0.05),while the mRNA and protein expression levels of SIRT1 significantly decreased(P<0.05).RT-qPCR results showed that,compared with control group(treated with siRNA transfection agent intervention)and Scra siRNA group,the expression of miR-34a and mRNA expression of Atrogin-1 and MuRF-1 in miR-34a siRNA group significantly decreased(P<0.05),while the mRNA expression of SIRT1 significantly increased(P<0.05),meanwhile the protein expression of Atrogin-1 and MuRF-1 decreased significantly(P<0.01),and the protein expression of SIRT1 significantly increased(P<0.05).RT-qPCR results also showed that,compared with vehicle group,the mRNA expression of Atrogin-1 and MuRF-1 in SRT1720 group decreased significantly(P<0.05),while SIRT1 increased significantly(P<0.05).Western blotting results demonstrated that,compared with control group and Scra siRNA group,the protein expression of Atrogin-1 and MuRF-1 in miR-34a siRNA group decreased significantly(P<0.05),while SIRT1 increased significantly(P<0.05).RT-qPCR and Western blotting results indicated that,compared with miR-34a siRNA+vehicle group,the mRNA and protein expression of Atrogin-1 and MuRF-1 in miR-34a siRNA+EX-527 group increased significantly(P<0.05).Conclusion Overactivation of miR-34a in ICU-AW contributes to skeletal muscle atrophy by inhibiting the expression of SIRT1,which may play an important role in the pathogenesis of ICU-AW.
10.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.

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