1.Long-term influence of splenectomy on immunity in advanced schistosomiasis patients
Yiming WU ; Chenxiao CAI ; Meiping TU ; Wenling WU ; Rengye DING ; Wenjun ZHU
Chinese Journal of Schistosomiasis Control 2009;21(6):550-552
A total of 55 cases of advanced schistosomiasis patients combined with Ⅲ-grade hepatic fibrosis and ascites were randomized into a splenectomy group and non-splenectomy group. The peripheral vein blood phlebotomized from these patients were detected for leucocytes, hematids, thrombocytes, acidophils, glutamic-pyruvic transaminase,alkaline phosphatase,albumin, total bilirubin,three-type precollagen, fore-type collagen, hyaluronic acid, IgG, IgA, C_3, C_4 and the sub-group of lymphocytes such as CD3、CD4、 CD8 、CD56 + 16. There were no significant difference on hepatic function and the level of hepatic fibrosis between the groups above metioned. It could be found that leucocytes, thrombocytes, IgG, IgA, CD56 + 16 increased while CD3, CD4, and albumin decreased in the splenectomy group. In conclusion, leucocytes and thrombocytes increase after splenectomy, cytoimmunity declines and humoral immunity enhances.
2.Assessment of optical coherence tomography and optical coherence microscope for oral cancer diagnosis: a clinical study
Wei YUAN ; Chenxiao ZHU ; Haiqing JU ; Lizheng QIN ; Xin HUANG
Chinese Journal of Stomatology 2024;59(11):1132-1139
Objective:To explore and evaluate the feasibility and accuracy of using optical coherence tomography and optical coherence microscope (OCT/OCM) for diagnosis of oral cancer.Methods:In this study, OCT/OCM was utilized to image the oral mucosa specimens. A total of 289 ex vivo oral mucosa specimens were collected from 68 patients with oral cancer who were hospitalized at Department of Oral and Maxillofacial Head and Neck Tumors, Capital Medical University School of Stomatology, between January 2021 and February 2023, resulting in a dataset of 1 445 OCT/OCM images. By observing the characteristic patterns in the OCT/OCM images, including normal oral mucosa, epithelial abnormal proliferation (mild, moderate, severe), and oral cancer, these patterns were matched with corresponding pathological images. A diagnostic study was conducted, employing pathological diagnosis as the gold standard and utilizing a double-blind experimental design involving three diagnostic evaluators who participated in the analysis and diagnosis of OCT/OCM images. Results:The OCT/OCM images demonstrated good correlation with the corresponding pathological images, and diagnostic criteria were established based on the comparative results. In the diagnostic study involving three investigators, the accuracy was 82%, sensitivity was 84% (95% CI: 80%-88%), and specificity was 81% (95% CI: 77%-85%). There was a high level of agreement among the observers (kappa=0.614), indicating substantial concordance in the diagnostic results among the three investigators. Conclusions:This study demonstrates the potential of OCT/OCM for diagnosis of oral cancer. The technology accurately distinguishes between normal oral mucosa, epithelial abnormal proliferation and oral cancer.
3.The Effects of Wenfei Huaxian Decoction (温肺化纤汤) on Pulmonary Fibrosis and Endoplasmic Reticulum Stress in Systemic Sclerosis-Associated Interstitial Lung Disease Model Mice
Mingliang QIU ; Jiali XIONG ; Chenxiao XIAO ; Xinzhu ZHOU ; Lisha MO ; Shiwen KE ; Guoshuang ZHU ; Liangji LIU
Journal of Traditional Chinese Medicine 2024;65(13):1383-1391
ObjectiveTo investigate the possible mechanism of Wenfei Huaxian Decoction (温肺化纤汤) in treatment of pulmonary fibrosis in systemic sclerosis-associated interstitial lung disease (SSc-ILD). MethodsSixty C3H/He female rats were randomly divided into a control group, a model group, a pirfenidone group, and low-, medium-, and high-dose Wenfei Huaxian Decoction groups. The SSc-ILD model mice was established by subcutaneous injection of bleomycin solution 0.04 mg/d into the back of mice for 28 days in all groups but the control group. After successful modelling, the pirfenidone group was given pirfenidone capsule 300 mg/(kg·d) by gavage, the low-, medium- and high-dose Wenfei Huaxian Decoction groups were given Wenfei Huaxian Decoction 7.81, 15.62, and 31.24 g/(kg·d) by gavage, respectively, and the control group as well as the model group were given normal saline 0.1 ml/10 g by gavage, for a total of 21 days. At the end of the intervention, HE staining and Masson staining were used to observe the pathological changes in the skin and lung tissues; the hydroxyproline content of the skin and lung tissues was detected; the protein expression levels of endoplasmic reticulum stress-related proteins glucose-regulated protein 78 (BIP) and C/EBP homologous protein (CHOP) as well as those of nuclear factor kappa B (NF-κB) pathway p65 were measured by western blot; ELISA was performed to determine the expression levels of interferon gamma (IFN-γ), interleukin 6 (IL-6) and tumour necrosis factor alpha (TNF-α) in serum of rats. ResultsThe results of HE and Masson staining indicated that compared with the control group, the dermis significantly thickened, the number of collagen fibers significantly enlarged, and the number of inflammatory cells significantly increased in the model group; the lung tissue showed a marked inflammatory cellular response with massive collagen fibre proliferation with inflammatory cell infiltration. Compared with the model group, the skin tissue and lung tissue collagen fibre proliferation significantly reduced and inflammatory cell infiltration reduced in the pirfenidone group and all dose groups of Wenfei Huaxian Decoction, and the effects of pirfenidone group and Wenfei Huaxian Decoction medium- and high-dose groups were basically comparable. Compared with the model group, the content of hydroxyproline in skin and lung tissue, the serum level of IFN-γ, IL-6 and TNF-α, and the expression levels of BIP and CHOP protein in lung tissue increased in model group (P<0.05). Compared with model group, the content of hydroxyproline in skin tissue of pirfenidone group, low-and medium-dose Wenfei Huaxian Decoction groups decreased, and the content of hydroxyproline in lung tissue of medium-dose Wenfei Huaxian Decoction group decreased. The serum level of IFN-γ, IL-6, TNF-α and the expression levels of BIP, CHOP and p65 protein in lung tissue of rats in pirfenidone group and high-dose Wenfei Huaxian Decoction group decreased (P<0.05). The content of hydroxyproline in lung tissue of medium-dose Wenfei Huaxian Decoction group was significantly lower than that of low-dose and high-dose Wenfei Huaxian Decoction group, and the serum level of IFN-γ, IL-6, TNF-α in low- and medium-dose Wenfei Huaxian Decoction group were higher than those in high-dose Wenfei Huaxian Decoction group. The expression level of BIP protein in high-dose group was significantly lower than that in low- and medium-dose Wenfei Huaxian Decoction groups (P<0.05). ConclusionWenfei Huaxian Decoction can improve the skin and lung fibrosis of SSc-ILD rats, which may act through anti-inflammation, inhibition of NF-κB pathway, and then inhibition of endoplasmic reticulum stress, which ultimately blocked the fibrotic process.