Hepatic fibrosis is a complex dynamic process caused by multiple chronic pathogenic factors， characterized by excessive accumulation of liver extracellular matrix and abnormal liver structure and function. If anti-fibrotic treatment is not performed in time， it can progress to liver cirrhosis and even liver cancer. Hepatic fibrosis has a complex pathogenesis， and previous studies mainly focused on the activation of hepatic stellate cells. Recent studies have shown that myeloid cells have the potential of multi-directional differentiation and can also participate in the development and progression of hepatic fibrosis. This article systematically reviews the role and regulatory mechanism of myeloid cells in hepatic fibrosis， in order to provide a reference for clinical diagnosis and targeted therapy.

ObjectiveTo develop a nomogram-based risk prediction model for chronic obstructive pulmonary disease (COPD) incidence among the community-dwelling population aged 40 years old and above, so as to provide targeted references for the screening and prevention of COPD. MethodsBased on a natural population cohort in suburban Shanghai, a total of 3 381 randomly selected participants aged ≥40 years underwent pulmonary function tests between July and October 2021. Cox stepwise regression analysis was used to develop overall and gender-specific risk prediction models, along with the construction of corresponding risk nomograms. Model predictive performance was evaluated using the C-indice, area under the curve (AUC) values, and Brier score. Stability was assessed through 10-fold cross-validation and sensitivity analysis. ResultsA total of 3 019 participants were included, with a median follow-up duration of 4.6 years. The COPD incidence density was 17.22 per 1 000 person-years, significantly higher in males (32.04/1 000 person-years) than that in females (7.38/1 000 person-years) (P<0.001). The overall risk prediction model included the variables such as gender, age, education level, BMI, smoking, passive smoking, and respiratory comorbidities. The male-specific model incorporated the variables such as age, BMI, respiratory comorbidities, and smoking, while the female-specific model included age, marital status, respiratory comorbidities, and pulmonary tuberculosis history. The C-indices for the overall, male-specific, and female-specific models were 0.829, 0.749, and 0.807, respectively. The 5-year AUC values were 0.785, 0.658, and 0.811, with Brier scores of 0.103, 0.176, and 0.059, respectively. Both 10-fold cross-validated C-indices and sensitivity analysis (excluding participants with a follow-up duration of <6 months) yielded C-indices were above 0.740. ConclusionThis study developed concise and practical overall and gender-specific COPD risk prediction models and corresponding nomograms. The models demonstrated robust performance in predicting COPD incidence, providing a valuable reference for identifying high-risk populations and formulating targeted screening and personalized management strategies.

Objective:To explore the clinical characteristics, treatment methods, and prognosis of refractory pharyngeal ulcers. Methods:A retrospective analysis was conducted on the clinical manifestations, laryngoscopic features, laboratory tests, histopathological examinations, and treatments of 78 patients diagnosed with refractory pharyngeal ulcers. Results:There was no significant difference in the proportion of males-to-females in benign lesions, while males were significantly more prevalent in cases of malignant lesions. Seven distinct pathological types of pharyngeal ulcers were identified, with the most common being simple inflammatory ulcers（18 cases）, followed by tuberculosis（16 cases）, fungi（15 cases）, lymphoma（14 cases）, squamous cell carcinoma（10 cases）, Behcet's disease（3 cases）, and myelosarcoma（2 cases）. Conclusion:The clinical manifestations and lesions associated with refractory pharyngeal ulcers are diverse. A clear diagnosis should be established based on a systematic and comprehensive medical history, specialized examinations, and additional tests to avoid misdiagnosis and mistreatment. Laryngoscopy and histopathological examinations are essential for identifying the type of lesion and guiding appropriate treatment.
Humans ; Male ; Female ; Retrospective Studies ; Middle Aged ; Adult ; Aged ; Pharyngeal Diseases/pathology* ; Young Adult ; Ulcer/pathology* ; Adolescent ; Aged, 80 and over

Although enteric glial cell (EGC) abnormal activation is reported to be involved in the pathogenesis of Parkinson's disease (PD), and inhibition of EGC gliosis alleviated gut and dopaminergic neuronal dysfunction was verified in our previous study, the potential role of gut microbiota on EGC function in PD still need to be addressed. In the present study, fecal microbiota transplantation revealed that EGC function was regulated by gut microbiota. By employing 16S rRNA and metabolomic analysis, we identified that 3-indolepropionic acid (IPA) was the most affected differential microbial metabolite that regulated EGC gliosis. The protective effects of IPA on PD were validated in rotenone-stimulated EGCs and rotenone (30 mg/kg i.g. for 4 weeks)-induced PD mice, as indicated by decreased inflammation, improved intestinal and brain barrier as well as dopaminergic neuronal function. Mechanistic study showed that IPA targeted pregnane X receptor (PXR) in EGCs, and inhibition of IL-13Rα1 involved cytokine-cytokine receptor interaction pathway, leading to inactivation of downstream JAK1-STAT6 pathway. Our data not only provided evidence that EGC gliosis was critical in spreading intestinal damage to brain, but also highlighted the potential role of microbial metabolite IPA in alleviating PD pathological damages through gut-brain axis.

[This corrects the article DOI: 10.1016/j.apsb.2025.02.029.].

Objective : To construct a human keratinocyte-forming cell line(HaCaT) with stable knockout of the G protein-coupled receptor 107(GPR107) gene, and to preliminarily investigate the effect of GPR107 deletion on the biological behaviour of HaCaT cells. Methods : Using CRISPR/Cas9 gene editing technology, HaCaT cells with knockout ofGPR107gene were constructed and monoclonal cells with GPR107 deletion were obtained by limited dilution method. Genomic DNA was amplified using Western blot and PCR and sequenced to validate the single-cell clones with knockdown of GPR107. The cell cycle changes were detected by flow cytometry; cell proliferation was detected by CCK-8; apoptosis was detected by flow cytometry; changes in cell differentiation markers were detected by Western blot; cell migration ability was analyzed by cell scratch assay and other methods. Results : LentiCas9-Blast and plenti-guide-RNA-GPR107 plasmids were successfully transfected into HaCaT cells, 21 monoclonal cell lines were obtained by limited dilution, and Western blot showed that the GPR107 expression was significantly reduced in 8 of them; PCR sequencing of the cellular genome was used, which resulted in the obtainment of C4 and 2D8GPR107-/-HaCaT monoclonal cell lines. CCK-8 assay and flow cytometry assay showed thatGPR107gene deletion resulted in G0G1phase block, significantly weakened proliferation ability and increased apoptosis level of HaCaT cells. Western blot found that the differentiation of HaCaT cells accelerated after knockdown ofGPR107. Additionally the results of the cell scratch assay indicated that the migration ability of HaCaT cells was enhanced after knockdown ofGPR107. The results showed that the migration ability of HaCaT cells was enhanced after knockdown ofGPR107. Conclusion HaCaT cell line withGPR107gene deletion is successfully constructed, GPR107 deletion blocks the G0G1phase of HaCaT cells, which inhibiting the proliferation of HaCaT cells and promoted apoptosis, and it was found that the differentiation and migration of HaCaT cells were enhanced after knocking downGPR107.

AIM: To assess the accuracy of predicting intraocular lens(IOL)power after myopic refractive surgery using the Pentacam system's true net power(TNP)in the 3 mm zone combined with the SRK/T formula [i.e. TNP 3 mm(SRK/T)].METHODS: Retrospective study. This study enrolled 35 cases(50 eyes)of patients undergoing cataract surgery after laser assisted in situ keratomileusis(LASIK)or photorefractive keratectomy(PRK)from July 2019 to December 2021. Preoperatively, IOL power of 50 eyes, 34 eyes and 41 eyes was calculated by TNP 3 mm(SRK/T), Barrett True-K and Olsen 2 formulas, respectively, with at least 2 formulas used to calculate IOL power for each patient. The actual diopter was recorded 3 mo postoperatively. Prediction errors(PE)of IOL power were compared among the three calculation methods, and the proportion of eyes with PE within ±0.5 D and ±1.0 D was analyzed.RESULTS: The PE at 3 mo postoperatively for TNP 3 mm(SRK/T), Barrett True-K, and Olsen 2 was -0.02±0.63, -0.54±0.80, and 0.25±0.80 D, respectively(P<0.001). The proportions of PE within ±0.5 D were 66%(33/50), 44%(15/34)and 37%(15/41), respectively(P<0.05); the proportions of PE within ±1.0 D were 88%(44/50), 71%(24/34)and 80%(33/41), respectively(P>0.05).CONCLUSION: The Pentacam TNP 3 mm(SRK/T)method is simple to operate and provides accurate calculation of IOL power after corneal refractive surgery.

Objective:To investigate the incidence of postoperative complications in Chinese patients with gastric or colorectal cancer, and to evaluate the risk factors for postoperative complications.Methods:This was a national, multicenter, prospective, registry-based, cohort study of data obtained from the database of the Prevalence of Abdominal Complications After Gastro- enterological Surgery (PACAGE) study sponsored by the China Gastrointestinal Cancer Surgical Union. The PACAGE database prospectively collected general demographic characteristics, protocols for perioperative treatment, and variables associated with postoperative complications in patients treated for gastric or colorectal cancer in 20 medical centers from December 2018 to December 2020. The patients were grouped according to the presence or absence of postoperative complications. Postoperative complications were categorized and graded in accordance with the expert consensus on postoperative complications in gastrointestinal oncology surgery and Clavien-Dindo grading criteria. The incidence of postoperative complications of different grades are presented as bar charts. Independent risk factors for occurrence of postoperative complications were identified by multifactorial unconditional logistic regression.Results:The study cohort comprised 3926 patients with gastric or colorectal cancer, 657 (16.7%) of whom had a total of 876 postoperative complications. Serious complications (Grade III and above) occurred in 4.0% of patients (156/3926). The rate of Grade V complications was 0.2% (7/3926). The cohort included 2271 patients with gastric cancer with a postoperative complication rate of 18.1% (412/2271) and serious complication rate of 4.7% (106/2271); and 1655 with colorectal cancer, with a postoperative complication rate of 14.8% (245/1655) and serious complication rate of 3.0% (50/1655). The incidences of anastomotic leakage in patients with gastric and colorectal cancer were 3.3% (74/2271) and 3.4% (56/1655), respectively. Abdominal infection was the most frequently occurring complication, accounting for 28.7% (164/572) and 39.5% (120/304) of postoperative complications in patients with gastric and colorectal cancer, respectively. The most frequently occurring grade of postoperative complication was Grade II, accounting for 65.4% (374/572) and 56.6% (172/304) of complications in patients with gastric and colorectal cancers, respectively. Multifactorial analysis identified (1) the following independent risk factors for postoperative complications in patients in the gastric cancer group: preoperative comorbidities (OR=2.54, 95%CI: 1.51-4.28, P<0.001), neoadjuvant therapy (OR=1.42, 95%CI:1.06-1.89, P=0.020), high American Society of Anesthesiologists (ASA) scores (ASA score 2 points:OR=1.60, 95% CI: 1.23-2.07, P<0.001, ASA score ≥3 points:OR=0.43, 95% CI: 0.25-0.73, P=0.002), operative time >180 minutes (OR=1.81, 95% CI: 1.42-2.31, P<0.001), intraoperative bleeding >50 mL (OR=1.29,95%CI: 1.01-1.63, P=0.038), and distal gastrectomy compared with total gastrectomy (OR=0.65,95%CI: 0.51-0.83, P<0.001); and (2) the following independent risk factors for postoperative complications in patients in the colorectal cancer group: female (OR=0.60, 95%CI: 0.44-0.80, P<0.001), preoperative comorbidities (OR=2.73, 95%CI: 1.25-5.99, P=0.030), neoadjuvant therapy (OR=1.83, 95%CI:1.23-2.72, P=0.008), laparoscopic surgery (OR=0.47, 95%CI: 0.30-0.72, P=0.022), and abdominoperineal resection compared with low anterior resection (OR=2.74, 95%CI: 1.71-4.41, P<0.001). Conclusion:Postoperative complications associated with various types of infection were the most frequent complications in patients with gastric or colorectal cancer. Although the risk factors for postoperative complications differed between patients with gastric cancer and those with colorectal cancer, the presence of preoperative comorbidities, administration of neoadjuvant therapy, and extent of surgical resection, were the commonest factors associated with postoperative complications in patients of both categories.

Objective:To investigate the incidence of postoperative complications in Chinese patients with gastric or colorectal cancer, and to evaluate the risk factors for postoperative complications.Methods:This was a national, multicenter, prospective, registry-based, cohort study of data obtained from the database of the Prevalence of Abdominal Complications After Gastro- enterological Surgery (PACAGE) study sponsored by the China Gastrointestinal Cancer Surgical Union. The PACAGE database prospectively collected general demographic characteristics, protocols for perioperative treatment, and variables associated with postoperative complications in patients treated for gastric or colorectal cancer in 20 medical centers from December 2018 to December 2020. The patients were grouped according to the presence or absence of postoperative complications. Postoperative complications were categorized and graded in accordance with the expert consensus on postoperative complications in gastrointestinal oncology surgery and Clavien-Dindo grading criteria. The incidence of postoperative complications of different grades are presented as bar charts. Independent risk factors for occurrence of postoperative complications were identified by multifactorial unconditional logistic regression.Results:The study cohort comprised 3926 patients with gastric or colorectal cancer, 657 (16.7%) of whom had a total of 876 postoperative complications. Serious complications (Grade III and above) occurred in 4.0% of patients (156/3926). The rate of Grade V complications was 0.2% (7/3926). The cohort included 2271 patients with gastric cancer with a postoperative complication rate of 18.1% (412/2271) and serious complication rate of 4.7% (106/2271); and 1655 with colorectal cancer, with a postoperative complication rate of 14.8% (245/1655) and serious complication rate of 3.0% (50/1655). The incidences of anastomotic leakage in patients with gastric and colorectal cancer were 3.3% (74/2271) and 3.4% (56/1655), respectively. Abdominal infection was the most frequently occurring complication, accounting for 28.7% (164/572) and 39.5% (120/304) of postoperative complications in patients with gastric and colorectal cancer, respectively. The most frequently occurring grade of postoperative complication was Grade II, accounting for 65.4% (374/572) and 56.6% (172/304) of complications in patients with gastric and colorectal cancers, respectively. Multifactorial analysis identified (1) the following independent risk factors for postoperative complications in patients in the gastric cancer group: preoperative comorbidities (OR=2.54, 95%CI: 1.51-4.28, P<0.001), neoadjuvant therapy (OR=1.42, 95%CI:1.06-1.89, P=0.020), high American Society of Anesthesiologists (ASA) scores (ASA score 2 points:OR=1.60, 95% CI: 1.23-2.07, P<0.001, ASA score ≥3 points:OR=0.43, 95% CI: 0.25-0.73, P=0.002), operative time >180 minutes (OR=1.81, 95% CI: 1.42-2.31, P<0.001), intraoperative bleeding >50 mL (OR=1.29,95%CI: 1.01-1.63, P=0.038), and distal gastrectomy compared with total gastrectomy (OR=0.65,95%CI: 0.51-0.83, P<0.001); and (2) the following independent risk factors for postoperative complications in patients in the colorectal cancer group: female (OR=0.60, 95%CI: 0.44-0.80, P<0.001), preoperative comorbidities (OR=2.73, 95%CI: 1.25-5.99, P=0.030), neoadjuvant therapy (OR=1.83, 95%CI:1.23-2.72, P=0.008), laparoscopic surgery (OR=0.47, 95%CI: 0.30-0.72, P=0.022), and abdominoperineal resection compared with low anterior resection (OR=2.74, 95%CI: 1.71-4.41, P<0.001). Conclusion:Postoperative complications associated with various types of infection were the most frequent complications in patients with gastric or colorectal cancer. Although the risk factors for postoperative complications differed between patients with gastric cancer and those with colorectal cancer, the presence of preoperative comorbidities, administration of neoadjuvant therapy, and extent of surgical resection, were the commonest factors associated with postoperative complications in patients of both categories.

Objective:To investigate the diagnostic features of pulmonary sclerosing pneumocytoma (PSP) in needle biopsy specimens so as to improve the preoperative diagnostic accuracy and to prevent misdiagnoses.Methods:A total of 79 needle biopsy cases confirmed as PSP in surgical resection specimens were collected in the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China from January 2015 to January 2023. A retrospective analysis was conducted to investigate the clinical, pathological, and immunohistochemical characteristics of PSP.Results:Among the 79 cases, there were 8 males and 71 females, with an age range of 14 to 67 years (median 47 years). Among the 79 needle biopsy cases of PSP, 5 cases were initially misdiagnosed as adenocarcinoma and 1 as carcinoid preoperatively, while the remaining 73 cases were correctly diagnosed. 84.8% (67/79) of the PSP presented with well-defined, homogeneous, solitary solid tumors on chest imaging. Morphologically, 26.6% (21/79) of the PSP mainly showed a single histological component, 67.1% (53/79) contained two histological components, and 6.3% (5/79) contained three histological components. There were no cases containing all four histological components simultaneously. The tumor was composed of cuboidal cells on the surface and round cells in the stroma and lacked significant cytological atypia and mitotic figures. Some cases exhibited variations in histology and cellular morphology, such as glandular spaces (58.2%, 46/79), sclerotic papillae (46.8%, 37/79), hypercellularity (16.5%, 13/79), and cytological atypia (24.1%, 19/79). Immunophenotyping indicated that both tumor cell types expressed TTF1, EMA and β-catenin, while surface cells expressed pan-cytokeratin and Napsin A, and stromal cells expressed vimentin. In some cases, ER and PR were also expressed.Conclusions:When diagnosing PSP in needle biopsy specimens, the key to avoiding misdiagnosis is recognizing the presence of dual-cell populations within the tumor. The useful clues include presence of cellular papillae, mild cellular atypia, morphological diversity, interstitial foam-like cell aggregates, and prominent background hemorrhage and sclerosis. The characteristic immunophenotype and middle-aged female predilection are also helpful for the diagnosis of PSP.