Anorexia nervosa (AN) is a serious mental disorder with a high mortality rate. At present, the etiology and pathogenesis of AN is still unclear. A number of studies have shown that there is a relationship between AN and gut microbiota. This study reviews the latest findings in the study of gut microbiota in patients with AN. Existing studies have found that compared with healthy people, patients with AN have changed in the abundance and diversity of gut microbiota, but different research results are not consistent on the species of the changed microbiota. After treatment, the gut microbiota showed an increasing trend in the abundance and diversity of beneficial bacteria, but did not return to the normal state. At present, the potential mechanisms of gut microbiota in AN are mainly focused on neurological, immune, endocrine and other aspects. Future research directions on the relationship between gut microbiota and AN are also proposed.

Objective:To explore drug detoxification motivation in methamphetamine-dependent female youth and its relationship with time perspective,perceived social support and emotion regulation strategies.Methods:To-tally 200 methamphetamine-dependent female youths under compulsory isolation were assessed with the Drug De-toxification Motivation Scale,Zimbardo Time Perspective Inventory-Chinese(ZTPI-C),Emotion Regulation Scale(ERS),and Perceived Social Support Scale(PSSS).Results:Multiple linear regression analysis showed that drug detoxification motivation scores were positively correlated with the scores of ERS reevaluation and expression inhi-bition,PSSS family support scores and level of education(β=0.24,0.16,0.20,0.16).Conclusion:Time perspec-tive,perceived social support and emotion regulation strategies are closely related to drug detoxification motivation in methamphetamine-dependent female youth.

Objective To explore the influence of Da Vinci robot-assisted different approaches of laparoscopic partial nephrectomy(LPN)on the renal function and intestinal function recovery in the treatment of central renal tumors.Methods Totally 100 patients with central renal tumors who received Da Vinci robot-assisted LPN in the Central Hospital of Enshi Tujia and Miao Autonomous Prefecture were selected from November 2022 to March 2024.According to the consent of the patients,they were divided into transperitoneal group and retroperitoneal group by envelope drawing method,with 50 cases in each group.The transperitoneal group adopted transperitoneal approach,while the retroperitoneal group received retroperitoneal approach.The surgical status and postoperative recovery status,renal function[serum creatinine(Scr),glomerular filtration rate(GFR)and blood urea nitrogen(BUN)],intestinal function recovery status[restore exhaust time,plasma diamine oxidase(DAO),D-lactic acid and urinary lactulose/mannose(L/M)]and complications were compared between groups.Results The surgical time,intraoperative blood loss,renal warm ischemia time,restore exhaust time,urinary catheter indwelling time and hospitalization time with(126.76±23.89)h,(115.86±6.93)ml,(25.41±6.57)min,(2.29±0.56)d,(4.89±0.93)d and(11.08±1.92)d in transperitoneal group were longer or more than the retroperitoneal group[(111.58±21.86)h,(86.27±6.71)ml,(17.08±5.16)min,(1.73±0.43)d,(3.16±0.62)d and(9.29±2.07)d,all P＜0.05].1 month after surgery,the SCr level in transperitoneal group with(83.04±10.13)μmol/L was lower than(88.55±9.16)μmol/L in retroperitoneal group while the GFR value with(58.27±6.19)ml/min was higher than(54.36±6.05)ml/min in retroperitoneal group(P＜0.05).The levels of DAO,D-lactic acid and the value of urine L/M with(3.39±0.57)mg/L,(2.09±0.31)mg/L and(0.08±0.02)in transperitoneal group at 24 hours after surgery,which were higher than the retroperitoneal group[(3.07±0.46)mg/L,(1.72±0.25)mg/L and(0.05±0.02),P＜0.05].The total incidence rates of postoperative complications in transperitoneal group and retroperitoneal group were 12.00％and 8.00％(P＞0.05).Conclusion The two approaches of LPN assisted by Da Vinci robot have their own advantages in the treatment of central renal tumors.Transperitoneal approach is more conducive to improving renal function,but retroperitoneal approach is more conducive to shortening the postoperative recovery time and promoting the intestinal function recovery and has lower incidence rates of complications.

Acute lung injury (ALI) has been a kind of acute and severe disease that is mainly characterized by systemic uncontrolled inflammatory response to the production of huge amounts of reactive oxygen species (ROS) in the lung tissue. Given the critical role of ROS in ALI, a Fe₃O₄ loaded bovine serum albumin (BSA) nanocluster (BF) was developed to act as a nanomedicine for the treatment of ALI. Combining with NIR irradiation, it exhibited excellent ROS scavenging capacity. Significantly, it also displayed the excellent antioxidant and anti-inflammatory functions for lipopolysaccharides (LPS) induced macrophages (RAW264.7), and Sprague Dawley rats via lowering intracellular ROS levels, reducing inflammatory factors expression levels, inducing macrophage M2 polarization, inhibiting NF-κB signaling pathway, increasing CD4⁺/CD8⁺ T cell ratios, as well as upregulating HSP70 and CD31 expression levels to reprogram redox homeostasis, reduce systemic inflammation, activate immunoregulation, and accelerate lung tissue repair, finally achieving the synergistic enhancement of ALI immunotherapy. It finally provides an effective therapeutic strategy of BF + NIR for the management of inflammation related diseases.

Neuropathic pain, often featuring allodynia, imposes significant physical and psychological burdens on patients, with limited treatments due to unclear central mechanisms. Addressing this challenge remains a crucial unsolved issue in pain medicine. Our previous study, using protein kinase C gamma (PKCγ)-tdTomato mice, highlights the spinal feedforward inhibitory circuit involving PKCγ neurons in gating neuropathic allodynia. However, the regulatory mechanisms governing this circuit necessitate further elucidation. We used diverse transgenic mice and advanced techniques to uncover the regulatory role of the descending serotonin (5-HT) facilitation system on spinal PKCγ neurons. Our findings revealed that 5-HT neurons from the rostral ventromedial medulla hyperpolarize spinal inhibitory interneurons via 5-HT_2C receptors, disinhibiting the feedforward inhibitory circuit involving PKCγ neurons and exacerbating allodynia. Inhibiting spinal 5-HT_2C receptors restored the feedforward inhibitory circuit, effectively preventing neuropathic allodynia. These insights offer promising therapeutic targets for neuropathic allodynia management, emphasizing the potential of spinal 5-HT_2C receptors as a novel avenue for intervention.
Animals ; Neuralgia/physiopathology* ; Protein Kinase C/metabolism* ; Receptor, Serotonin, 5-HT2C/metabolism* ; Hyperalgesia/physiopathology* ; Mice, Transgenic ; Mice ; Spinal Cord/metabolism* ; Serotonin/metabolism* ; Male ; Neurons/metabolism* ; Mice, Inbred C57BL

Hemorrhagic shock is a common clinical emergency that can aggravate cell injury after resuscitation. Astrocytes are crucial for the survival of neurons because they regulate the surrounding ionic microenvironment of neurons. Although hemorrhagic shock and resuscitation (HSR) injury can impair cognition, it remains unclear how this insult directly affects astrocytes. In this study, we established an HSR model by bleeding and re-transfusion in mice. The social interaction test and new object recognition test were applied to evaluate post-operative cognitive changes, and the results suggest that mice experience cognitive impairment following exposure to HSR. In the HSR group, the power spectral density of β and γ oscillations decreased, and the coupling of the θ oscillation phase and γ oscillation amplitude was abnormal, which indicated abnormal neuronal oscillation and cognitive impairment after HSR exposure. In brief, cognitive impairment in mice is strongly correlated with Ca²⁺ signal strength in lateral septum astrocytes following HSR.
Animals ; Astrocytes/metabolism* ; Shock, Hemorrhagic/metabolism* ; Resuscitation/adverse effects* ; Male ; Mice ; Calcium Signaling/physiology* ; Mice, Inbred C57BL ; Septal Nuclei/metabolism* ; Cognitive Dysfunction/etiology* ; Disease Models, Animal ; Cognition Disorders/etiology*

Pyroptosis is an identified programmed cell death that has been highly linked to endoplasmic reticulum (ER) dynamics. However, the crucial proteins for modulating dynamic ER membrane curvature change that trigger pyroptosis are currently not well understood. In this study, a biotin-labeled chemical probe of potent pyroptosis inducer α-mangostin (α-MG) was synthesized. Through protein microarray analysis, reticulon-4 (RTN4/Nogo), a crucial regulator of ER membrane curvature, was identified as a target of α-MG. We observed that chemically induced proteasome degradation of RTN4 by α-MG through recruiting E3 ligase UBR5 significantly enhances the pyroptosis phenotype in cancer cells. Interestingly, the downregulation of RTN4 expression significantly facilitated a dynamic remodeling of ER membrane curvature through a transition from tubules to sheets, consequently leading to rapid fusion of the ER with the cell plasma membrane. In particular, the ER-to-plasma membrane fusion process is supported by the observed translocation of several crucial ER markers to the "bubble" structures of pyroptotic cells. Furthermore, α-MG-induced RTN4 knockdown leads to pyruvate kinase M2 (PKM2)-dependent conventional caspase-3/gasdermin E (GSDME) cleavages for pyroptosis progression. In vivo, we observed that chemical or genetic RTN4 knockdown significantly inhibited cancer cells growth, which further exhibited an antitumor immune response with anti-programmed death-1 (anti-PD-1). In translational research, RTN4 high expression was closely correlated with the tumor metastasis and death of patients. Taken together, RTN4 plays a fundamental role in inducing pyroptosis through the modulation of ER membrane curvature remodeling, thus representing a prospective druggable target for anticancer immunotherapy.
Pyroptosis/immunology* ; Humans ; Endoplasmic Reticulum/immunology* ; Animals ; Nogo Proteins/antagonists & inhibitors* ; Mice ; Cell Line, Tumor ; Xanthones/pharmacology* ; Neoplasms/pathology* ; Mice, Nude

Pelvic organ prolapse (POP), whose etiology is influenced by genetic and clinical risk factors, considerably impacts women's quality of life. However, the genetic underpinnings in non-European populations and comprehensive risk models integrating genetic and clinical factors remain underexplored. This study constructed the first polygenic risk score (PRS) for POP in the Chinese population by utilizing 20 disease-associated variants from the largest existing genome-wide association study. We analyzed a discovery cohort of 576 cases and 623 controls and a validation cohort of 264 cases and 200 controls. Results showed that the case group exhibited a significantly higher PRS than the control group. Moreover, the odds ratio of the top 10% risk group was 2.6 times higher than that of the bottom 10%. A high PRS was significantly correlated with POP occurrence in women older than 50 years old and in those with one or no childbirths. As far as we know, the integrated prediction model, which combined PRS and clinical risk factors, demonstrated better predictive accuracy than other existing PRS models. This combined risk assessment model serves as a robust tool for POP risk prediction and stratification, thereby offering insights into individualized preventive measures and treatment strategies in future clinical practice.
Humans ; Female ; Pelvic Organ Prolapse/epidemiology* ; Middle Aged ; Risk Assessment/methods* ; China/epidemiology* ; Multifactorial Inheritance ; Aged ; Risk Factors ; Genome-Wide Association Study ; Genetic Predisposition to Disease ; Case-Control Studies ; Adult ; Polymorphism, Single Nucleotide ; Genetic Risk Score ; East Asian People

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