摘要：Objective:To investigate the changes in radial pulse induced by thermal stresses(TSs).Methods:Sixty subjects were *** an open-label,2x2 crossover randomization design,both feet of each subject were immersed in 15%:water for cold stress(CS)and in 40 X:water for heat stress(HS)for 5 min *** pulse,respiration and electrocardiogram(ECG)signals were recorded before,during and immediately after the ***:The an alysis of heart rate variability revealed that CS in creased the low-freque ncy(LF)and high-frequency(HF)components(P<0.05)and that HS reduced the LF and HF components(P<0.01).Both TSs reduced the normalized LF,increased the normalized HF,and reduced the LF/HF *** differences in the ECG signals were more dominant during the TS sessions,but those in the radial pulse signals became more domi nant immediately after the TS sessi *** decreased the pulse depth(P<0.01)and in creased the radial augme ntation in dex(P<0.1),and HS in creased the pulse pressure(P<0.1)and sube ndocardial viability ratio(P<0.01).There were no significant differences in pulse rate during the three time sequences of each *** respiration rate was increased(P<0.1),and the pulse rate per respiration(P/R ratio)was significantly decreased(P<0.05)with *** HF region(10-30 Hz)of the pulse spectral density was suppressed during both ***:CS induced vasoconstriction and sympathetic reactions,and HS induced vasodilation and parasympathetic reacti *** on defi nitions used in pulse diag no sis,we made the novel discoveries that the pulse became slower(decreased P/R ratio),more floating and tenser under CS and that the HF region of the spectral power decreased significantly under both TSs.

摘要：This study presents a simple and robust three-dimensional human hepatic tissue model to emulate steatotic and fibrotic conditions and provide an in vitro model for drug testing and mechanistic *** a photolithographic biofabrication method with a photomask featuring hexagonal units,liver cells,including a human hepatic cell line(HepG2-C3A)and a human hepatic stellate cell line(LX-2)were embedded in gelatin methacryloyl *** steatosis was induced by supraphysiological concentration of free fatty acids;hepatic fibrosis was induced by transforming growth factor-β*** of steatosis was confirmed by Oil Red O and BODIPY staining and was inhibited with toyocamycin and obeticholic *** of fibrosis was confirmed by immunostaining for collagen type I and alpha smooth muscle actin and inhibited by rapamycin and curcumin *** model was further preliminarily validated using primary human hepatocytes in a similar *** constructs provide a viable,biologically relevant,and higher throughput model of hepatic steatosis and fibrosis and may facilitate the study of the mechanisms of disease and testing of liver-directed drugs.

摘要：Colon-targeted oral delivery is crucial for the treatment of colon-related diseases, as this delivery strategy enables precise drug administration to the diseased site, enhances drug bioavailability, and improves patient com- pliance. In particular, nanoparticle-based oral formulations shield drugs from the harsh gastrointestinal environment, and selectively increase drug colon cells, thus elevating concentration inside diseased therapeutic efficacy while reducing systemic toxicity. In this review, we elaborate recent progress in this area, with emphasis on the patho- physiological characteristics of colon site and design strategies to take advantage of these characteristics for colon targeting.

摘要：This article revisits the links between psychopathology and functional gastrointestinal disorders such as irritable bowel syndrome （IBS）, discusses the rational use of antidepressants as well as non-pharmacological approaches to the management of IBS, and suggests guidelines for the treatment of IBS based on an interdisciplinary perspective from the present state of knowledge. Relevant published literature on psychiatric disorders, especially somatization disorder, in the context of [BS, and literature providing direction for management is reviewed, and new directions are provided from findings in the literature. IBS is a heterogeneous syndrome with various potential mechanisms responsible for its clinical presentations. IBS is typically complicated with psychiatric issues, unexplained symptoms, and functional syndromes in other organ systems. Most IBS patients have multiple complaints without demonstrated cause, and that these symptoms can involve systems other than the intestine, e.g. bones and joints （fibromyalgia, temporomandibular joint syndrome）, heart （non-cardiac chest pain）, vascular （post-menopausal syndrome）, and brain （anxiety, depression）. Host IBS patients do not have psychiatric illness per se, but a range of psychoform （psychological complaints in the absence of psychiatric disorder） symptoms that accompany their somatoform （physical symptoms in the absence of medical disorder） complaints. It is not correct to label IBS patients as psychiatric patients （except those more difficult patients with true somatization disorder）. One mode of treatment is unlikely to be universally effective or to resolve most symptoms. The techniques of psychotherapy or cognitive-behavioral therapy can allow IBS patients to cope more readily with their illness. Specific episodes of depressive or anxiety disorders can be managed as appropriate for those conditions. Medications designed to improve anxiety or depression are not uniformly useful for psychiatric complaints in IB

摘要：Three-dimensional(3D)tumor models prepared from patient-derived cells have been reported to imitate some of the biological development processes of in situ tumors in *** 3D tumor models share several important characteristics with their in vivo tumor ***,their applications in tumor modeling,drug screening,and precision-targeted treatment are ***,the establishment of tumormodels is subject to several challenges,including advancements in scale size,repeatability,structural precision in time and space,vascularization,and the tumor ***,bioprinting technologies enabling the editorial arrangement of cells,factors,and materials have improved the simulation of tumormodels in *** the 3D bioprinted tumor models,the organoidmodel has been widely appreciated for its advantages of maintaining high heterogeneity and capacity for simulating the developmental process of tumor *** this review,we outline approaches and potential prospects for tumor model bioprinting and discuss the existing bioprinting technologies and bioinks in tumor model *** multidisciplinary combination of tumor pathology,molecular biology,material science,and additive manufacturing will help overcome the barriers to tumor model construction by allowing consideration of the structural and functional characteristics of in vitro models and promoting the development of heterogeneous tumor precision therapies.

摘要：Dear Editor,In morphogenesis,the sequential execution of tissue arrangement depends on a vast array of signaling proteins and cellular *** mechanisms of such response have been identified:apoptosis,proliferation,fusion,adhesion,sorting,transition,folding,migration and *** combinations of these responses lead to the formation of various anatomical structures[1,2].

摘要：Liver injury is a common cause of drug approval withdrawal during drug development,pre-clinical research,and clinical *** not properly treated,patients with severe liver injury can suffer from acute liver failure or even ***,utilization of the convenient in vitro hepatotoxicity assessment model for early detection of drug-induced hepatotoxicity is vital for drug development and safe personalized ***(e.g.,hydrogels,nanofibers,decellularized liver matrix)and bioengineering technologies(e.g.,microarrays,micropatterns,3D printing,and microfluidics)have been applied for in vitro hepatotoxicity assessment *** review summarizes the structure and functions of the liver as well as the components of in vitro hepatotoxicity assessment *** addition,it highlights the latest advances in developing hepatotoxicity models with the ultimate goal of further clinical translation.

摘要：Regeneration and reconstruction of bone tissue is always a challenge for clinicians due to the uncertainty of bone repair materials in terms of long-term and efficient effects on ***,we propose a novel strategy combining benidipine,an antihypertensive drug and nanoparticles to synergistically promote the healing of bone *** and porous benidipine-loaded magnesium silicate nanoparticles were prepared and validated for their *** nanoparticles were efficiently taken up by preosteoblasts and uniformly distributed around the *** internalization into cells,the nanosystem is degraded by lysosomes,and the effect of promoting osteogenic differentiation is reflected by the continuous release of benidipine,silicon and magnesium *** results clearly evaluated that the nanoflower-like magnesium silicate delivering benidipine tends to be more appropriate for the bone regeneration in preosteoblasts,indicating that it might be a potential approach in guiding bone repair in clinical applications.

摘要：Colorectal cancer(CRC)remains one of the major causes of death worldwide,despite steady improvement in early detection and overall survival over the past *** treatment paradigms,with chemotherapy and biologics,appear to have reached their maximum ***,especially with checkpoint inhibitors,has shown considerable clinical benefit in various cancers,including mismatch-repair-deficient *** has led to the planning and initiation of several clinical trials evaluating novel immunotherapy agents—as single agents,combinations and in conjunction with chemotherapy—in patients with *** article reviews biological and preclinical data for checkpoint inhibitors and discusses various immunotherapy trials in CRC,as well as current efforts in CRC immunotherapy.

摘要：In this issue of the Chinese Journal of Cancer,European,American,and Chinese experts review the current management and future perspectives of epithelial ovarian cancer(EOC),the leading cause of gynecological cancer *** major advances have been made in understanding the cellular and molecular biology of this highly heterogeneous malignancy,the survival rate of women with EOC has changed little since the introduction of platinum-based treatment as a front-line *** papers describe the progress in deciphering the molecular complexity of this disease and the newly available molecular-driven therapies,which have been applied by shifting trial designs toward restricting eligibility to specific subgroups of patients rather than testing agents in unselected *** new trial designs provide potential opportunities for improved efficacy in targeted *** the molecular complexity of this disease,patient survival may be increased by searching for new molecular prognostic/predictive signatures as well as by translating the recent insight of microRNA involvement in EOC progression into new,targeted *** attention has been given to the issue of fertility sparing for women affected by curable diseases.