1.Study on in vitro anti-inflammatory effects and mechanisms of oblongifolins A extracted from Garcinia oblon-gifolia
Xueshan LI ; Guiming QIN ; Huiying SHI ; Xiaoqin ZOU ; Jie FENG ; Xiaobin ZHONG
China Pharmacy 2024;35(10):1209-1214
OBJECTIVE To investigate the in vitro anti-inflammatory effects and mechanisms of oblongifolins A (OA) extracted from Garcinia oblongifolia. METHODS RAW264.7 cells were used as the research subject and divided into control group (0.5% DMSO), lipopolysaccharide (LPS) group (1 μg/mL), DEX group (10 µmol/L DEX+1 μg/mL LPS), and low-, medium-, and high-concentration groups of OA (7.5, 15, 30 µmol/L OA+1 μg/mL LPS). Except for the control group, the remaining groups were first stimulated with LPS for 1 hour and then mixed with drugs for 24 hours. The morphological changes of cells were observed in each group. The contents of nitric oxide (NO), reactive oxygen species (ROS), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), IL-1β, IL-4 and IL-10 were detected in cells of each group; mRNA expression levels of TNF-α, IL-6 and IL-1β were measured. The expression of key proteins in the nuclear factor κB (NF-κB) and nuclear factor-erythroid 2-related factor 2 (Nrf2) signaling pathways in each group, as well as the nuclear translocation of NF-κB p65 and Nrf2 proteins in control group, LPS group and OA high-concentration group, were detected. RESULTS Compared to the LPS group, the number of spindle-shaped and irregular cells gradually decreased in OA groups, the contents of NO, ROS (except for OA low-concentration group), TNF-α, IL-6 and IL-1β, the mRNA expressions of TNF-α, IL-6 (except for OA low-concentration group) and IL-1β as well as the protein expressions of phosphorylated NF-κB p65 (p-NF-κB p65), p-IκBα, and Kelch-like ECH-associated protein 1 (Keap1) were decreased significantly (P<0.05). The contents of IL-4 and IL-10, protein expressions of IκBα, Nrf2 (except for OA low- and medium-concentration groups), HO-1 (except for OA low-concentration group) and NQO1 were all increased significantly (P<0.05). OA of high concentration could inhibit NF-κB p65 protein nuclear translocation and promote Nrf2 protein nuclear translocation. CONCLUSIONS OA can suppress LPS-induced inflammation in RAW264.7 macrophages. The underlying molecular mechanism likely entails the inhibition of the NF-κB signaling pathway, the activation of the Nrf2 signaling pathway and the reduction of ROS and inflammatory factor release.
2.Research Advances in Traditional Chinese Medicine and Natural Products for Cancer Treatment by Targeting Ferroptosis
Quanhui JIAO ; Lingyun ZHONG ; Ziwen CHENG ; Xiaobin LYU ; Changhua ZHANG
Herald of Medicine 2024;43(3):408-413
Ferroptosis is a unique iron-dependent cell death pattern,a novel death phenotype distinct from apoptosis,va-rious forms of necrosis,and autophagy.Numerous active ingredients extracted from traditional Chinese medicine have been found to exert anti-cancer effects by inducing ferroptosis in various cancers.An increasing number of studies have found that the regulation of ferroptosis can influence the sensitivity of tumor cells to drugs and even reverse drug resistance.When combined with chemo-therapy drugs such as cisplatin,5-FU and gemcitabine,some natural products enhance cancer cells'sensitivity to chemothera-peutic drugs by inducing ferroptosis.This paper mainly summarizes traditional Chinese medicine and its natural products that can exert anti-cancer effects by inducing ferroptosis,providing new insights for cancer treatment and drug resistance reversal.Addition-ally,it contributes to exploring the potential advantages of traditional Chinese medicine,thereby expanding its scope of applica-tion.
3.Application of nasal endoscopic Draf Ⅱ-Ⅲ frontal sinus surgery in recurrent frontal sinus infection and sinus formation after craniocerebral trauma
Cao LYU ; Xiaobin HUANG ; Jie CHEN ; Zhong LAN ; Yi TU ; Xiaohong YANG ; Zhong BAI
Chinese Archives of Otolaryngology-Head and Neck Surgery 2024;31(4):248-250
OBJECTIVE To investigate the application of endoscopic Draf Ⅱ-Ⅲ frontal sinus surgery in the treatment of recurrent frontal sinus infection and fistula formation after craniocerebral trauma.METHODS There were 8 cases of recurrent frontal sinus infection after craniocerebral trauma,the main manifestations were headache,recurrent frontal infection,discharge of pus,fistula formation.The average onset time was 43.25 months.The patients underwent DRAF Ⅱ-Ⅲ frontal sinus surgery under nasal endoscopy,including Draf Ⅱa 2,Draf Ⅱb 5,and Draf Ⅲ1,respectively.During the operation,the frontal sinus ostium was expanded.It was found that bone wax blocked the frontal sinus ostium in the frontal sinus.The bone wax was removed,and the frontal sinus drainage was smooth.No facial incision was made in all patients.RESULTS There were 8 patients with frontal infection who were cured after surgery.No cerebrospinal fluid rhinorrhea or intracranial infection occurred during or after operation.After discharge,the outpatient follow-up review was conducted in 1,3,6,and 12 months.It was found that the frontal sinus remained unobstructed.The frontal sinus did not become infected again,and the fistula gradually healed.CONCLUSION Draf Ⅱ-Ⅲ frontal sinus surgery under nasal endoscopy is an effective way to treat recurrent frontal sinus infection and fistula formation after craniocerebral trauma.
4.Renal eosinophilic vacuolated tumor: a clinicopathological analysis of seven cases
Yan WANG ; Jie ZHUANG ; Yujun LI ; Xiaobin JI ; Yunxia LI ; Yuejuan ZHANG ; Wenjuan YU ; Daochen ZHONG ; Wei ZHANG ; Yanxia JIANG
Chinese Journal of Pathology 2024;53(9):910-915
Objective:To investigate the clinicopathological features and differential diagnosis of eosinophilic vacuolated tumor (EVT).Methods:Seven cases of EVT with characteristic morphology and unequivocal diagnosis from the Affiliated Hospital of Qingdao University (6 cases), Qingdao, China and the 971 Hospital of PLA Navy (1 case), Qingdao, China between January 2010 and December 2021 were subject to morphological and immunohistochemical analyses. Additionally, whole exome sequencing (WES) was performed in two cases. Twenty-two cases of renal oncocytoma (RO) and 17 cases of eosinophilic chromophobe renal cell carcinoma (eChRCC) diagnosed at the same time were used as controls.Results:Four males and three females with a mean age of 42 years (range: 29-61 years) were included in the study. The tumors were nodular and well-circumscribed, with sizes ranging from 1.5 to 4.5 cm. On cross-section, they appeared gray-red or gray-white, solid, and soft. Tumor cells were arranged in nests, solid sheets, and acinar or small vesicular structures. These cells exhibited eosinophilic cytoplasm with large, prominent clear vacuoles and round nuclei with prominent nucleoli. Perinuclear halos were focally present in four cases, while small tumor cells with sparse cytoplasm and hyperchromatic nuclei were seen in one case. No necrosis or mitosis was noted. Edematous stroma was detected in three cases. All tumors were positive for CD117 and Cathepsin K, but negative for vimentin and CK7. CK20 was positive in scattered individual cells, and Ki-67 positivity ranged from 1% to 4%. Point mutations in MTOR were identified in both patients who were subject to the molecular analysis. Statistical differences in the expression of Cathepsin K, CD10, S-100A1, and Cyclin D1 between EVT and RO ( P<0.05) were significant, so were the differences in the expression of Cathepsin K, CD10, CK7 and claudin 7 between EVT and eChRCC ( P<0.001). Seven patients were followed up for 4 to 96 months (mean, 50 months), with no recurrences or metastases. Conclusions:EVT is a rare renal tumor that shares morphological and immunophenotypic features with RO and eChRCC, and it is closely linked to the TSC/MTOR pathway. The presence of large prominent transparent vacuoles in eosinophilic cytoplasm along with conspicuous nucleoli is its key morphological characteristics. The use of combined immunohistochemical stains greatly aids in its diagnosis. Typically, the tumor exhibits indolent biological behaviors with a favorable prognosis.
5.Fourth investigation and analysis of the quality control situation in the critical care medicine of traditional Chinese medicine hospitals in Sichuan province
Jun CHEN ; Xingyue CHEN ; Kunlan LONG ; Rui YUAN ; Song ZHANG ; Xiaobin LI ; Xingmei ZHONG ; Kaichen ZHANG ; Peng DING ; Peiyang GAO
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2024;31(4):459-464
Objective To enhance the quality of medical services in the intensive care unit(ICU)of provincial traditional Chinese medicine(TCM)hospitals.Methods In November 2023,Sichuan Provincial Critical Care Medicine Quality Control Center of TCM launched the"quality control supervision project scoring standard for critical care medicine of TCM"to conduct quality control evaluation and business guidance for all TCM hospitals with independent ICU.The survey covered structural indicators,control indicators,participation of TCM,development of new technologies,and diagnosis and treatment programs for dominant diseases.Results In terms of structural indicators:a total of 110 TCM hospitals in the province have independent ICU,an increase of 1.12 times compared with 2019.The control indicators showed that the ICU patients admission rate was higher than that of the national ICU admission rate in 2017,and the admission rate of patients with acute physiology and chronic health evaluation Ⅱ(APACHEⅡ)score≥15 points increased.However,the mortality of ICU exceeded the national average.The implementation of core indicators had been significantly improved,but the incidence of outcome indicators such as ICU ventilator-associated pneumonia(VAP),ICU intravascular catheter-related bloodstream infection(CRBSI),and ICU catheter-related urinary tract infection(CAUTI)had increased since 2019,mainly in secondary hospitals.The average number of new technologies was about(5.5±3.4),the participation rate of TCM decreased,and the dominant diseases increased compared with 2019,mainly sepsis,respiratory failure and hemorrhagic stroke.Conclusions The number of ICU units in TCM hospitals at all levels in Sichuan province has grown rapidly,and key performance indicators have also improved compared to previous periods.However,greater efforts are still needed in preventing the occurrence rates of VAP,CRBSI,and CAUTI.There is a shortage of medical resources allocation,and the imbalance in regional medical resources and professional training remains an urgent issue to be addressed.Additionally,the participation rate of TCM and the dominant diseases need further enhancement.
6.Analysis of 5 ischemic stroke patients caused by pulmonary arteriovenous fistula
Lulu ZHENG ; Xianwen WANG ; Xu ZHONG ; Tingting WU ; Xiaobin CHEN
Chinese Journal of Neurology 2023;56(6):661-665
Objective:To investigate the correlation between pulmonary arteriovenous fistula (PAVF) and ischemic stroke, and to improve the diagnosis and treatment of embolic strokes of undetermined source.Methods:Five patients with ischemic stroke caused by PAVF admitted to Xiangya Hospital of Central South University from January 2017 to December 2020 were collected. The diagnosis, treatment and prognosis of stroke caused by PAVF were summarized based on literature review.Results:Among the 5 patients, 1 is male and 4 are females, with age of (34.4±9.3) years. Weakness of unilateral limb, slurred speech, vision changes, drooping eyelids, etc., were the first manifestations of stroke. The location of cerebral infarction was indefinite. In this study, 5 patients were all isolated PAVF, including 3 cases of left lower lung, 1 case of left upper lung and 1 case of right lower lung. All 5 patients underwent interventional therapy, were followed-up for 6 months and 12 months after surgery, and none of them had a new stroke attack, and only 1 case had recanalization of PAVF.Conclusions:PAVF is a rare vascular lesion, stroke caused by which is even rarer, with a lack of specificity in clinical manifestations. For young patients with unexplained embolic stroke, if the stroke has a sudden onset, the anterior and posterior circulation can be involved, and multiple vascular distribution regions are often involved, and it is difficult to find a clear emboli basis, with manifestations such as hypoxemia, PAVF should be considered. Percutaneous catheter intervention for PAVF is safe and effective, and is the preferred method for the treatment of PAVF.
7.Comparison of carotid endarterectomy vs. carotid stent implantation in the treatment of carotid stenosis
Zhong CHEN ; Yaoguo YANG ; Xiaobin TANG ; Lei KOU ; Sheng WANG ; Zhangmin WU ; Hui LIU ; Nan HE ; Zheng ZHANG ; Zike LIANG ; Hanfang ZHANG
Chinese Journal of General Surgery 2022;37(3):169-174
Objective:To compare carotid endarterectomy (CEA) and carotid artery stenting (CAS) in perioperative, medium and long term prognosis of patients with carotid artery stenosis.Methods:A retrospective analysis was performed on 1 329 cases of carotid artery stenosis treated at Department of Vascular Surgery, Beijing Anzhen Hospital from Jan 2011 to Aug 2020, as all cases being divided into CAS group and CEA group.Results:There were significant differences in age ( t=0.098, P=0.023) and drinking habits ( χ2=8.055, P=0.005) between the two groups. There were more unstable plaques in CEA group ( χ2=4.392, P=0.038), and more bilateral lesions in CAS group ( χ2=9.673, P=0.038). In perioperative period, there were more mannitol use in CEA group ( χ2=78.614, P<0.001), more incision/puncture site complications ( χ2=5.158, P=0.035), lung infection ( χ2=6.355, P=0.013), cerebral hyperperfusion syndrome (CHS) ( χ2=5.158, P=0.035) and extracranial nerve injury ( χ2=23.760, P<0.001) in CEA group than in CAS group, and more acute renal failure in CAS group ( χ2=10.393, P=0.001). There was no significant difference in survival rate and ischemic stroke, myocardial infarction, cerebral hemorrhage and renal insufficiency between the two groups (all P>0.05). The mean survival time of CAS group was 53.195 months (95% CI: 52.040-54.350), and 54.492 months (95% CI: 53.790-55.195) in CEA group ( P=0.051). Conclusions:Patients in CEA group had more unstable plaque and a lower perioperative stroke rate. CEA group had higher risk of CHS,while CAS was with lower postoperative lung infection rate and less wound local complications. There was no significant difference in long-term survival between the two groups.
8.Patch angioplasty versus primary closure after carotid endarterectomy
Liao YANG ; Sheng WANG ; Xiaobin TANG ; Lei KOU ; Hui LIU ; Zhangmin WU ; Zhong CHEN
Chinese Journal of General Surgery 2021;36(5):337-340
Objective:To compare the perioperative complications of carotid endarterectomy with patch angioplasty or primary closure.Methods:The clinical data of 492 carotid endarterectomy patients at the Vascular Surgery Department of Anzhen Hospital from Mar 2003 to Dec 2016 was analyzed retrospectively.Results:There were 364 cases (74%) in the patch angioplasty group and 128 cases (26%) in the primary closure group. The incidence of perioperative ischemic stroke was significantly lower in the patch angioplasty group than that in the primary closure group (0.8% vs. 3.9%, P=0.031), and there was no difference in the incidence of the remaining perioperative complications. By subgroup analysis, the incidence of perioperative ischemic stroke was significantly lower in the patch angioplasty group than in the primary closure group when the diameter of the internal carotid artery was <5 mm (0.7% vs. 6.0%, P=0.001), whereas there was no difference between the two groups when the diameter of the internal carotid artery was ≥5 mm. Conclusions:Carotid endarterectomy with patch angioplasty can reduce the incidence of perioperative cerebral infarction, especially in cases with an internal carotid artery diameter <5 mm.
9.A Meta integration of qualitative studies on self management experience of peritoneal dialysis patients
Yali ZHONG ; Xinling SONG ; Wei CHEN ; Xiaomei SHEN ; Xiaobin LUO
Chinese Journal of Modern Nursing 2021;27(6):772-778
Objective:To systematically evaluate the experience of self-management in peritoneal dialysis patients.Methods:Databases including PubMed, Embase, Web of Science, the Cochrane Library, PsycInfo, Scopus and CNKI, Wanfang, VIP, CBM and Google Scholar were searched and relevant qualitative research on self-management experience of peritoneal dialysis patients was retrieved with a time limitation from the establishment of the databases to April 6, 2020. The quality of articles was evaluated by the quality evaluation standard of qualitative research of JBI evidence-based health care center (2008) , and the results were Meta integrated.Results:A total of 8 studies were included, and 26 complete research results were extracted. We summed up 10 new categories, and obtained 3 integrated results. Integration result 1: cognitive and behavioral management. Patients try to maintain the independence and confidence of peritoneal dialysis management through facing renal failure and adapting to dialysis treatment. Integration result 2: crisis identification and management of complications. Through continuous learning of knowledge and skills related to dialysis treatment, as well as identification and treatment of worsening symptoms, patients can improve their ability of crisis identification and management. Integration result 3: role and social relationship management. Patients constantly adjust their roles and emotions to adapt to changes in daily life and maintain social functions and strive to strengthen communication with medical care, family and society to obtain social relationship support, and increase patients' confidence in self-management.Conclusions:The self-management of peritoneal dialysis patients involves many aspects. The medical staff should give understanding, guidance, and support to the patients' self-management and self-care process in combination with family and society, to help them with better self-management and improve their quality of life.
10.Study on Protective Effects of the Ethanol Extract of Garcinia oblongifolia on LPS-induced RAW 264.7 Cell Inflammatory Injury
Lei HUANG ; Meiqiong LIU ; Xiaoman ZHANG ; Shaofeng SU ; Xiaoqin ZOU ; Xiaobin ZHONG ; Jie FENG
China Pharmacy 2020;31(14):1719-1725
OBJECTIVE:To investigate the anti-inflammatory activity of 70% ethanol extracts from Garcinia oblongifolia (GOEE)on LPS-induced RAW 264.7 cells and its potential molecular mechanism. METHODS :GOEE was obtained after the fresh G. oblongifolia epicarp refluxed with 70% ethanol. The contents of total phenol and total flavonoids were determined by Folin-Ciocalteau assay and UV spectrophotometer. MTT assay was used to detect the cytotoxicity of different doses of GOEE. The inflammatory model was induced in RAW 264.7 cells by lipopolysa- ccharide (LPS). Using dexamethasone and N-acetyl-L-cysteine as positive control ,Griess assay and 2′,7′-dichloro- fluorescein assay were used to detect the contents of NO in cell culture medium and ROS in cells. The levels of TNF-α,IL-6,and IL- 1β in cell culture medium were measured by ELISA. The protein expression of p 65,p-p65,IκBα,p-IκBα,HO-1 in cells and NRF 2 in nucleus were determined by using Western blotting assay. RESULTS:The contents of total phenol and flavonoids in GOEE were (20.191±1.264)and(12.571±0.020)mg/g,respectively. At the concentration below 500 μ g/mL, GOEE had no significantly effect on survival rate of RAW 264.7 cells(P> 294043)0.05). Compared with control group ,the contents of NO and ROS,the levels of TNF-α,IL-6 and IL- 1β,ratio of p-p 65 top65,ratio of p-IκBα to IκBα,protein expression of NRF 2 were increased significantly in LPS model group (P<0.05 or P<0.01). Compared with LPS model group ,the contents of NO(except for GOEE 50 μg/mL group)and ROS ,the levels of TNF-α,IL-6 and IL- 1β,ratio of p-p 65 to p 65 and ratio of p-IκBα to IκBα were decreased significantly in GOEE groups and positive control groups ,while protein expression of HO- 1 and NRF 2 were increased significantly (P<0.05 or P<0.01). CONCLUSIONS:GOEE attenuates LPS-induced macrophages inflammation injury by inhibiting the inflammatory response and the phosphorylation of NF-κB pathway,promoting NRF 2 protein transportation to the nucleus.

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