1.Antioxidant and Anti-tumor Effect and Mechanisms of Andrographis paniculata Polysaccharide on Human Cervical Cancer HeLa Cells
Lijin HUANG ; Zilin LI ; Ziyan YANG ; Han WANG ; Guiyuan CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(18):80-88
ObjectiveTo explore the antioxidant and anti-human cervical cancer HeLa cell effect and mechanisms of Andrographis paniculata polysaccharide (APP). MethodCell function assays were conducted to assess the effects of APP (400, 450, 500 mg·L-1) on the proliferation, migration, and invasion of HeLa cells using the cell counting kit-8 (CCK-8) assay, scratch assay, and Transwell assay. Molecular mechanism experiments were conducted to detect the effects of APP on HeLa cell apoptosis and cell cycle-related mRNA and protein expression using flow cytometry, real-time fluorescence-based quantitative polymerase chain reaction (Real-time PCR), and Western blot analysis. The antioxidant activity of APP was tested using DPPH+, OH-, and reducing power assays. ResultCompared with the blank group, APP (400, 450, 500 mg·L-1) significantly inhibited the migration, proliferation, and invasion abilities of HeLa cells in a time- and dose-dependent manner (P<0.05, P<0.01). Flow cytometry with propidium iodide (PI) single staining was used to detect cell cycle. The results showed that compared with the blank group, the proportion of HeLa cells in the G2/M phase increased after 48 hours of treatment with APP (400, 450, 500 mg·L-1), indicating that APP can arrest HeLa cells in the G2/M phase. Flow cytometry with fluorescein isothiocyanate (Annexin V-FITC)/PI apoptosis kit was used to detect cell apoptosis. Compared with the blank group, the proportion of early and late apoptotic HeLa cells increased in a dose-dependent manner after 48 hours of APP (400, 450, 500 mg·L-1) treatment (P<0.05, P<0.01), indicating that APP promotes HeLa cell apoptosis. The results of Real-time PCR and Western blot assay showed that compared with the blank group, after 48 hours of APP (400, 450, 500 mg·L-1) treatment resulted in decreased mRNA and protein expression of cell cycle-dependent kinase-1 (CDK-1), Cyclin B1, and B-cell lymphoma-2 (Bcl-2), and increased mRNA and protein expression of cysteine aspartate protease (Caspase)-3, Caspase-8, Caspase-9, and Bcl-2-associated X protein (Bax) (P<0.05, P<0.01). These findings were consistent with the flow cytometry results and showed a dose-dependent effect. In vitro antioxidant tests demonstrated that different concentrations of APP (50-1 000 mg·L-1) were able to scavenge DPPH+ and OH- radicals, indicating certain antioxidant activity. ConclusionAPP possesses antioxidant activity and can inhibit the viability of HeLa cells while promoting their apoptosis.
2.Exploration of the mechanism for medical communication and humanistic quality cultivation from the perspective of narrative medicine
Miao GUO ; Dong LI ; Yingjie GUO ; Kun GUAN ; Sheng TIAN ; Lijin YANG ; Zhe WANG
Modern Hospital 2024;24(10):1504-1507
Narrative medicine,as an interdisciplinary field at the intersection of humanistic education and medical edu-cation,is an effective means of implementing medical humanities.It not only fosters deeper empathy and communication between doctors and patients but also plays an important role in clinical practice and the cultivation of humanistic qualities.This study starts from the core connotation of integrating narrative medicine into the doctor-patient relationship,focusing on the value logic of narrative medicine empowering humanistic care.Utilizing a typical case from a hospital in Tianjin that practices humanistic care based on narrative medicine,the study examines the organizational structure,practical activities,humanistic care initiatives,health education,supportive measures,and outcomes of the narrative medicine healthcare management team.The conclusion drawn is that exploring mechanisms for medical communication and the cultivation of humanistic qualities can facilitate the mutual transformation of narrative and empathy skills,the organic combination of narrative medicine with evidence-based medicine,and the complementary relationship between clinical medicine and humanistic education.This approach aims to alleviate the increas-ingly prominent conflicts between doctors and patients,bridge the gap between humanity and technology,and promote the imple-mentation of medical humanities in clinical settings.
3.Clinical value of fiber nasopharyngoscope applied in adenoid hypertrophy combined with allergic rhinitis in children
Jiafei CHEN ; Liping ZHANG ; Hailin YANG ; Min ZHU ; Lijin CHEN ; Guowang ZHANG
China Journal of Endoscopy 2024;30(10):69-76
Objective To investigate the clinical value of fiber nasopharyngoscope applied in adenoid hypertrophy(AH)combined with allergic rhinitis(AR)in children.Methods Clinical data of 174 pediatric patients from January 2021 to March 2024 was collected and analyzed.Among them,129 cases were diagnosed with AH via fiber nasopharyngoscope examination(79 cases with AR were assigned to the AH with AR group,the remaining 50 cases of simple AH without AR were assigned to the AH group),and 45 cases of simple AR without AH through fiber nasopharyngoscope examination were assigned to the AR group.And 25 healthy children who came to our pediatric health department for health examinations during the same period were selected as the healthy control(HC)group.On the day of admission,all subjects underwent lateral X-ray examination of the nasopharynx,and the ratio of the maximum thickness of adenoids to the anterior posterior diameter of the nasopharynx cavity(A/N ratio)was calculated.Meanwhile their of peripheral blood eosinophil(EOS)percentage,serum interleukin-17(IL-17),and tumor necrosis factor-α(TNF-α)levels were tested.The A/N ratio,peripheral blood EOS percentage,serum IL-17 and TNF-α levels were compared among the AH with AR group,AH group,AR group,and HC group.The A/N ratio,peripheral blood EOS percentage,serum IL-17 and TNF-α levels of children with different degrees of adenoid obstruction under fiber nasopharyngoscope were compared in AH and AR group.Spearman correlation coefficient was used to analyze the correlation between the degree of adenoid obstruction under fiber nasopharyngoscope and the levels of peripheral blood EOS percentage,serum IL-17 and TNF-α in children from AH and AR group.Result A/N ratio:the value in AH with AR group was higher than that in AH group(P<0.05),the value in AH group was higher than that in AR group(P<0.05),and the value in AR group was higher than that in HC group(P<0.05).Peripheral blood EOS percentage,serum IL-17 and TNF-α levels:AH with AR group had higher levels than those in AR group(P<0.05),AR group had higher levels than those in AH group(P<0.05),and AH group had higher levels than those in HC group(P<0.05).The A/N ratio,peripheral blood EOS percentage,serum IL-17 and TNF-α levels in children with adenoid obstruction degree Ⅲ~Ⅳ under fiber nasopharyngoscope in the AH group were significantly higher than those in children with degree Ⅰ~Ⅱ(P<0.05).Spearman correlation analysis showed that the degree of adenoid obstruction under fiber nasopharyngoscope in children with AH accompanied by AR significantly positively correlated with peripheral blood EOS percentage,serum IL-17 and TNF-α levels(r values were 0.527,0.451,and 0.402 respectively,P<0.05).Conclusion Fiber nasopharyngoscope can be used for the diagnosis of AH with AR in children,and can be positive in determining severity of the patient's condition when combined with peripheral blood EOS percentage,serum IL-17 and TNF-α levels.
4.Chinese expert consensus on the diagnosis and treatment of traumatic cerebrospinal fluid leakage in adults (version 2023)
Fan FAN ; Junfeng FENG ; Xin CHEN ; Kaiwei HAN ; Xianjian HUANG ; Chuntao LI ; Ziyuan LIU ; Chunlong ZHONG ; Ligang CHEN ; Wenjin CHEN ; Bin DONG ; Jixin DUAN ; Wenhua FANG ; Guang FENG ; Guoyi GAO ; Liang GAO ; Chunhua HANG ; Lijin HE ; Lijun HOU ; Qibing HUANG ; Jiyao JIANG ; Rongcai JIANG ; Shengyong LAN ; Lihong LI ; Jinfang LIU ; Zhixiong LIU ; Zhengxiang LUO ; Rongjun QIAN ; Binghui QIU ; Hongtao QU ; Guangzhi SHI ; Kai SHU ; Haiying SUN ; Xiaoou SUN ; Ning WANG ; Qinghua WANG ; Yuhai WANG ; Junji WEI ; Xiangpin WEI ; Lixin XU ; Chaohua YANG ; Hua YANG ; Likun YANG ; Xiaofeng YANG ; Renhe YU ; Yongming ZHANG ; Weiping ZHAO
Chinese Journal of Trauma 2023;39(9):769-779
Traumatic cerebrospinal fluid leakage commonly presents in traumatic brain injury patients, and it may lead to complications such as meningitis, ventriculitis, brain abscess, subdural hematoma or tension pneumocephalus. When misdiagnosed or inappropriately treated, traumatic cerebrospinal fluid leakage may result in severe complications and may be life-threatening. Some traumatic cerebrospinal fluid leakage has concealed manifestations and is prone to misdiagnosis. Due to different sites and mechanisms of trauma and degree of cerebrospinal fluid leak, treatments for traumatic cerebrospinal fluid leakage varies greatly. Hence, the Craniocerebral Trauma Professional Group of Neurosurgery Branch of Chinese Medical Association and the Neurological Injury Professional Group of Trauma Branch of Chinese Medical Association organized relevant experts to formulate the " Chinese expert consensus on the diagnosis and treatment of traumatic cerebrospinal fluid leakage in adults ( version 2023)" based on existing clinical evidence and experience. The consensus consisted of 16 recommendations, covering the leakage diagnosis, localization, treatments, and intracranial infection prevention, so as to standardize the diagnosis and treatment of traumatic cerebrospinal fluid leakage and improve the overall prognosis of the patients.
5.The functions and mechanisms of kynurenine pathway in cognitive dysfunction
Lijin JING ; Jing YANG ; Qizhen ZHOU ; Qi WANG
Journal of Chinese Physician 2022;24(1):157-160,f3
Tryptophan (TRP) is an essential amino-acid and the precursor of many signaling molecules. Under the catalysis of indoleamine 2, 3-dioxygenase, kynurenine pathway can form its metabolites uroquinolinic acid and quinolinic acid, which is the main channel of TRP metabolism.Through different mechanisms in N-methyl-D-aspartate receptor, they participate in nervous modulation, affect cognitive processes and play an important role in many central nervous system diseases development. Kynurenine pathway is different under physiological and pathological conditions. In addition, there are many rate-limiting enzymes in the kynurenine pathway, which can interfere kynurenine pathway. This article reviews the relationship between tryptophan/kynurenine pathway and cognitive dysfunction.
6.Study on pharmacological components and mechanism of Qingre huoxue decoction in improving myocardial ischemia-reperfusion injury
Rui LI ; Shuliang JI ; Jiechun ZHANG ; Zhizhong SUN ; Xiaodan YANG ; Yude LIU ; Zaoyuan KUANG ; Lijin QING ; Wei WU
China Pharmacy 2022;33(23):2845-2851
OBJECTIVE To investigate the pharmacological components and mechanism of Qingre huoxue decoction in improving myocardial ischemia-reperfusion injury(MIRI). METHODS Forty-two rats were randomly divided into sham operation group (normal saline), model group (normal saline), Qingre huoxue decoction low-dose, medium-dose and high-dose groups (4.94, 9.88, 19.79 g/kg),Qingre huoxue decoction drug-containing serum group (19.79 g/kg) and blank serum group (normal saline), with 6 rats in each group. Each group was given corresponding drug/normal saline intragastrically, once a day, for consecutive 2 weeks. Twelve hours after last administration, except for serum groups, MIRI model was induced in other groups (only threading without ligation in sham operation group). After modeling, cardiac histopathology was observed and apoptosis level was detected. UPLC-MS was used to analyze the samples in Qingre huoxue decoction drug-containing serum group and blank serum group. The main pharmacological components were screened with the help of relevant databases. Multivariate statistical methods were used to analyze the differential metabolites and related metabolic pathways. Validation test was performed based on oxidative stress indicators. RESULTS Qingre huoxue decoction could improve the pathological injury of cardiac tissue and decrease apoptosis rate of cardiac cells in MIRI model rats (P<0.05). Qingre huoxue decoction drug-containing serum contained 20 main pharmacological components such as baicalin, succinic acid, baicalein, cryptotanshinone, isoferulic acid, protocatechuic aldehyde. Qingre huoxue decoction could significantly up-regulate the levels of 15 metabolites including L-arginine, L-arginine, citric acid, glutathione, β-D- glucose and L-carnitine, and down-regulated the levels of 14 metabolites including arachidonic acid, 3-phosphate-d-glycerol phosphate, linoleic acid, docosahexaenoic acid, phosphatidylcholine and lysophosphatidylcholine (P<0.05). These metabolites were mainly involved in energy metabolism, inflammatory injury, oxidative stress and autophagy. Results of validation tests showed that Qingre huoxue decoction could significantly reduce the levels of malondialdehyde, and increased the levels of superoxide dismutase (except for low-dose group) and glutathione peroxidase significantly (P<0.05). CONCLUSIONS Qingre huoxue decoction can improve the injury of cardiac tissue in MIRI model rats. Its pharmacological components include baicalin, cryptotanshinone, isoferulic acid, protocatechualdehyde, etc. Furthermore, it may play a protective role in MIRI by improving myocardial energy metabolism, down-regulating oxidative stress, inhibiting inflammation infiltration.
7.Association Between Lipid Profiles and Left Ventricular Hypertrophy: New Evidence from a Retrospective Study
Huang XUEWEI ; Deng KEQIONG ; Qin JUANJUAN ; Lei FANG ; Zhang XINGYUAN ; Wang WENXIN ; Lin LIJIN ; Zheng YUMING ; Yao DONGAI ; Lu HUIMING ; Liu FENG ; Chen LIDONG ; Zhang GUILAN ; Liu YUEPING ; Yang QIONGYU ; Cai JINGJING ; She ZHIGANG ; Li HONGLIANG
Chinese Medical Sciences Journal 2022;37(2):103-117
Objective To explore the association between lipid profiles and left ventricular hypertrophy in a Chinese general population. Methods We conducted a retrospective observational study to investigate the relationship between lipid markers [including triglycerides, total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein (HDL) cholesterol, non-HDL-cholesterol, apolipoprotein A-I, apolipoprotein B, lipoprotein[a], and composite lipid profiles] and left ventricular hypertrophy. A total of 309,400 participants of two populations (one from Beijing and another from nationwide) who underwent physical examinations at different health management centers between 2009 and 2018 in China were included in the cross-sectional study. 7,475 participants who had multiple physical examinations and initially did not have left ventricular hypertrophy constituted a longitudinal cohort to analyze the association between lipid markers and the new-onset of left ventricular hypertrophy. Left ventricular hypertrophy was measured by echocardiography and defined as an end-diastolic thickness of the interventricular septum or left ventricle posterior wall > 11 mm. The Logistic regression model was used in the cross-sectional study. Cox model and Cox model with restricted cubic splines were used in the longitudinal cohort. Results In the cross-sectional study, for participants in the highest tertile of each lipid marker compared to the respective lowest, triglycerides [odds ratio (OR): 1.250, 95%CI: 1.060 to 1.474], HDL-cholesterol (OR: 0.780, 95%CI: 0.662 to 0.918), and lipoprotein(a) (OR: 1.311, 95%CI: 1.115 to 1.541) had an association with left ventricular hypertrophy. In the longitudinal cohort, for participants in the highest tertile of each lipid marker at the baseline compared to the respective lowest, triglycerides [hazard ratio (HR): 3.277, 95%CI: 1.720 to 6.244], HDL-cholesterol (HR: 0.516, 95%CI: 0.283 to 0.940), non-HDL-cholesterol (HR: 2.309, 95%CI: 1.296 to 4.112), apolipoprotein B (HR: 2.244, 95%CI: 1.251 to 4.032) showed an association with new-onset left ventricular hypertrophy. In the Cox model with forward stepwise selection, triglycerides were the only lipid markers entered into the final model. Conclusion Lipids levels, especially triglycerides, are associated with left ventricular hypertrophy. Controlling triglycerides level potentiate to be a strategy in harnessing cardiac remodeling but deserve to be further investigated.
8.Neonatal patent ductus arteriosus accompanied by acute heart failure and pulmonary edema: a case report and literature review
Yanzhang YANG ; Li WANG ; Yanfang YANG ; Fengqin CHEN ; Lijin XU
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2019;26(4):478-480
Objective To investigate the feasibility and safety of using vasodilators in the treatment of neonates with patent ductus arteriosus (PDA) accompanied by acute heart failure and pulmonary edema. Methods The clinical data of a case of neonatal PDA accompanied by severe cardiac insufficiency and pulmonary edema in Department of Intensive Care Unit (ICU) of Hebei General Hospital, and the neonate's hemodynamic characteristics and the efficacy and adverse reactions of phentolamine, a vasodilator, in the treatment of PDA were retrospectively analyzed. Results In this neonate, on the 8th day after birth and the improvement of pulmonary hyaline membrane disease, the respiratory distress occurred again, which was related to the severe cardiac dysfunction caused by the opening of PDA. Phentolamine was given on the basis of routine treatment to reduce systemic circulatory resistance. Two hours later, the respiratory distress was relieved significantly, that was presumably related to the decline of the left to right shunt volume through the PDA. There were no adverse reactions such as blood pressure reduction and coronary insufficiency. Conclusion Neonatal PDA is easily to be complicated with severe cardiac insufficiency, and vasodilators can reduce systemic circulatory resistance, reduce left to right shunt volume through the ductus arteriosus, and reverse the acute cardiac insufficiency and pulmonary edema, the therapeutic effect of vasodilators is remarkable, safe and reliable in neonatal PDA.
9.Effect of diabetic management modes on diabetic nephropathy: a prospective study.
Jin LI ; Bin HUANG ; Shengyan WANG ; Xudong JI ; Jianxin YIN ; Naihong YANG ; Junxia ZHAI ; Wenhuan KANG ; Xuhong MA
Chinese Critical Care Medicine 2019;31(12):1497-1500
OBJECTIVE:
To explore the effect of "diabetes specialists-community general practitioners-community nurse co-management mode" and "diabetes specialist management mode" on diabetic nephropathy (DN) in primary medical institutions.
METHODS:
Patients with type 2 diabetes admitted to Quanzijie Health Clinic of Jimusar County of Xinjiang Uygur Autonomous Region from October 2017 to March 2018 were enrolled. The Patients were divided into co-management group or specialist management group according to their administrative villages. The treatment plans of the two groups were formulated with reference to the current guidelines. The subjects of the co-management group were jointly managed by a fixed team composed of diabetes specialists from Jimusar Traditional Chinese Medicine Hospital, community general practitioners and community nurses from Quanzijie Health Clinic, and required to attend diabetes education courses every month. The diabetes specialist of Jimusar Traditional Chinese Medicine Hospital was responsible for the formulation and management of the treatment plan of the research object. Follow-up was fulfilled once every 4 weeks for 24 weeks in two groups. Before and after intervention, blood glucose, blood pressure, urinary albumin/creatinine ratio (UACR), estimated glomerular filtration rate (eGFR) as well as the utilization rate of angiotensin converting enzyme inhibitors/angiotensin II receptor blocker (ACEI/ARB) were collected.
RESULTS:
A total of 115 patients accomplished this study with 54 patients in co-management group and 61 patients in specialist management group. After 24 weeks of intervention, fasting glucose level, postprandial glucose level 2 hours after breakfast, glycosylated hemoglobin (HbA1c), Log UACR in co-management group and specialists management group were significantly decreased compared with baseline [fasting glucose level (mmol/L): 8.06±1.92 vs. 9.16±2.83, 8.21±2.10 vs. 9.06±1.89; postprandial glucose level 2 hours after breakfast (mmol/L): 12.26±3.78 vs. 14.11±5.28, 12.47±3.63 vs. 14.00±3.88; HbA1c: 0.074±0.014 vs. 0.082±0.023, 0.076±0.014 vs. 0.081±0.016; Log UACR (mg/g): 1.63±1.56 vs. 2.25±1.44, 1.84±1.65 vs. 2.43±1.56, all P < 0.05], but there was no statistical significance between the two groups [fasting glucose level (mmol/L): -1.10±0.47 vs. -0.85±0.36, postprandial glucose level 2 hours after breakfast (mmol/L): -1.85±0.88 vs. -1.53±0.68, HbA1c: -0.008±0.004 vs. -0.006±0.003, Log UACR (mg/g): -0.61±0.29 vs. -0.59±0.29, all P < 0.05]. There were no significant changes in blood pressure, serum creatinine and eGFR in the two groups before and after intervention. There were 18 and 24 patients with hypertension in co-management group and specialist management group, respectively. The utilization rates of ACEI/ARB in both groups after intervention were significantly higher than those before intervention [88.9% (16/18) vs. 22.2% (4/18), 95.8% (23/24) vs. 29.2% (7/24), both P < 0.01]. At the end of the study, the utilization rate of ACEI/ARB was similar between the two groups [88.9% (16/18) vs. 95.8% (23/24), P > 0.05].
CONCLUSIONS
Both "diabetes specialists-community general practitioners-community nurse co-management mode" and "diabetes specialist management mode" can effectively decrease glucose levels and UACR levels of patients with type 2 diabetes as well as the standard use of antihypertensive agents, which has positive effects on the prevention and treatment on DN.
Blood Glucose
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Creatinine
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Diabetes Mellitus, Type 2
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Diabetic Nephropathies
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Humans
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Prospective Studies
10.Effectiveness of the specific removal of exogenous endotoxin by an affinity adsorption material
Yongping XIANG ; Hui CUI ; Lijin LIU ; Jinhong ZHANG ; Dan LIU ; Jie YU ; Lidong ZHOU ; Jianming YANG ; Aibing LIU
Chinese Journal of Comparative Medicine 2018;28(3):48-51,71
Objective To investigate the effectiveness of the affinity adsorption material developed by our team for the specific removal of exogenous endotoxin in the blood circulation. Methods Fifteen beagle dogs were intravenously injected with endotoxin to establish a dog model of endotoxemia, and then they were randomly divided into the treatment group(n=10)and the control group(n=5). The treatment group received an extracorporeal perfusion to remove the endotoxin using the self-made disposable hemoperfusion device,while the control group using routine perfusion device. The levels of endotoxin, tumor necrosis factor α(TNF-α), interleukin 1β(IL-1β), interleukin 6(IL-6)and interleukin 8 (IL-8)in the blood of the dogs were measured at the beginning and 120 min after hemoperfusion for 120 minutes. The vital signs of the dogs were monitored during the hemoperfusion. Results After successful establishment of the endotoxemia model,the level of endotoxin at the beginning of hemoperfusion in the treatment group and control group was 118.63 ± 27.98 EU/mL and 117.16 ± 22.95 EU/mL,respectively. After hemoperfusion for 120 min,it was 0.039 ± 0.01 EU/mL and 131.98 ± 7.01 EU/mL, showing a significant difference(P﹤0.05). The clearance rate of hemoperfusion in the treatment group was 94.07%. At the beginning of hemoperfusion, the levels of TNF-α, IL-1β, IL-6 and IL-8 in the treatment group were 1.53 ± 0.27 ng/mL,12.82 ± 1.66 ng/mL,54.77 ± 3.98 ng/mL and 0.25 ± 0.32 ng/mL, and the levels in the control group were 1.53 ± 0.06 ng/mL,13.05 ± 0.18 ng/mL,54.58 ± 0.19 ng/mL and 0.28 ± 0.06 ng/mL, respectively. After hemoperfusion for 120 min, the levels of TNF-α, IL-1β, IL-6 and IL-8 in the treatment group were 0.13 ± 0.06 ng/mL, 0.70 ± 0.36 ng/mL, 1.62 ± 0.80 ng/mL and 0.01 ± 0.00 ng/mL, respectively, and as for the control group,the levels were 2.26 ± 0.15 ng/mL,15.12 ± 0.18 ng/mL,62.54 ± 0.93 ng/mL and 0.73 ± 0.93 ng/mL. There were significant differences between the beginning and after perfusion for 120 min in those two groups(P< 0.05). Conclusions This affinity adsorption material can effectively remove endotoxin and the inflammatory mediators in the blood of experimental dogs,with a clearance rate of 94.07%.

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