BACKGROUND:Recent studies have shown that Du Meridian electroacupuncture has a unique effect on alleviating spinal cord injury,but the underlying mechanisms require further clarification.OBJECTIVE:To investigate the regulatory effects and the associated action mechanisms of Du Meridian electroacupuncture on ferroptosis after cervical spinal cord injury in rats.METHODS:One hundred SD rats were randomly divided into sham,model,Du Meridian electroacupuncture,RSL3,and Du Meridian electroacupuncture+RSL3 groups.The sham group underwent only laminectomy.The other four groups were subjected to cervical spinal cord injury by the Allen method.The Du Meridian electroacupuncture group received electroacupuncture after cervical spinal cord injury.The RSL3 group received intraperitoneal injections of glutathione peroxidase 4 inhibitor RSL3 after cervical spinal cord injury.The Du Meridian electroacupuncture+RSL3 group received both electroacupuncture and RSL3 intervention after cervical spinal cord injury.Samples were collected on postoperative days 7 and 28 to assess motor function,histological morphology,neuronal survival,glial scar formation,oxidative stress levels,Fe2+content,glutathione peroxidase 4,and long-chain acyl-CoA synthetase 4 expression.RESULTS AND CONCLUSION:(1)Finally,90 rats completed the follow-up experiment,with 18 rats in each group.(2)FLS and BBB scores were significantly higher in the Du Meridian electroacupuncture group compared with the model and Du Meridian electroacupuncture+RSL3 groups(P＜0.05).(3)Compared with the model group,Du Meridian electroacupuncture improved cervical spinal cord tissue morphology and mitochondrial ultrastructure,while these effects were inhibited by RSL3.(4)Du Meridian electroacupuncture increased the expression of microtubule-associated protein 2,glutathione peroxidase 4,glutathione,and superoxide dismutase(P＜0.05)and reduced the expression of glial fibrillary acidic protein,long-chain acyl-CoA synthetase 4,reactive oxygen species,malondialdehyde,and Fe2+compared with the model group(P＜0.05).However,RSL3 reversed the inhibitory effects of Du Meridian electroacupuncture on ferroptosis,lipid peroxidation and oxidative stress.(5)The results suggest that Du Meridian electroacupuncture inhibits ferroptosis by regulating the glutathione peroxidase 4/long-chain acyl-CoA synthetase 4 axis,thereby reducing secondary neuronal damage and glial scar formation after cervical spinal cord injury and improving neurological function.

Objective To investigate the prognostic value of perfusion MRI in elderly patients with posterior circulation cerebral ischemia after interventional therapy.Methods A prospective study was conducted on 200 patients with posterior circulation cerebral ischemia who received interven-tional therapy in our hospital from June 2021 to March 2024.According to the prognosis,they were divided into a good prognosis group(142 patients)and a poor prognosis group(58 patients).The detection rate of abnormal sequences and related parameters were compared between the two groups.ROC curve analysis was adopted to evaluate the diagnostic efficiency of cerebral blood vo-lume(CBV),time to peak(TTP),mean transmit time(MTT)and cerebral blood flow(CBF)alone and combined together.Results The poor prognosis group had significantly higher abnor-mal detection rates than the good prognosis group(all P＜0.05).Obvious differences were observed between the two groups in terms of lesion location,stenosis rate,and CBF values in bilateral occipital lobes and cerebelli(all P＜0.01).The good prognosis group exhibited higher CBV and CBF values and lower TTP and MTT values than the poor prognosis group(P＜0.01).The above four values combined together showed better diagnostic efficiency than any single va-lues and obtained biggest AUC value,and the cut-off value of CBV,TTP,MTT,and CBF was 751.23 ml,21.03 s,590.55 s,and 257.88 ml/(100 g·min),respectively.Conclusion The com-bined diagnosis of perfusion MRI indicators can significantly improve the prognostic efficiency after interventional therapy in elderly patients with posterior circulation cerebral ischemia.

BACKGROUND:Recent studies have shown that Du Meridian electroacupuncture has a unique effect on alleviating spinal cord injury,but the underlying mechanisms require further clarification.OBJECTIVE:To investigate the regulatory effects and the associated action mechanisms of Du Meridian electroacupuncture on ferroptosis after cervical spinal cord injury in rats.METHODS:One hundred SD rats were randomly divided into sham,model,Du Meridian electroacupuncture,RSL3,and Du Meridian electroacupuncture+RSL3 groups.The sham group underwent only laminectomy.The other four groups were subjected to cervical spinal cord injury by the Allen method.The Du Meridian electroacupuncture group received electroacupuncture after cervical spinal cord injury.The RSL3 group received intraperitoneal injections of glutathione peroxidase 4 inhibitor RSL3 after cervical spinal cord injury.The Du Meridian electroacupuncture+RSL3 group received both electroacupuncture and RSL3 intervention after cervical spinal cord injury.Samples were collected on postoperative days 7 and 28 to assess motor function,histological morphology,neuronal survival,glial scar formation,oxidative stress levels,Fe2+content,glutathione peroxidase 4,and long-chain acyl-CoA synthetase 4 expression.RESULTS AND CONCLUSION:(1)Finally,90 rats completed the follow-up experiment,with 18 rats in each group.(2)FLS and BBB scores were significantly higher in the Du Meridian electroacupuncture group compared with the model and Du Meridian electroacupuncture+RSL3 groups(P＜0.05).(3)Compared with the model group,Du Meridian electroacupuncture improved cervical spinal cord tissue morphology and mitochondrial ultrastructure,while these effects were inhibited by RSL3.(4)Du Meridian electroacupuncture increased the expression of microtubule-associated protein 2,glutathione peroxidase 4,glutathione,and superoxide dismutase(P＜0.05)and reduced the expression of glial fibrillary acidic protein,long-chain acyl-CoA synthetase 4,reactive oxygen species,malondialdehyde,and Fe2+compared with the model group(P＜0.05).However,RSL3 reversed the inhibitory effects of Du Meridian electroacupuncture on ferroptosis,lipid peroxidation and oxidative stress.(5)The results suggest that Du Meridian electroacupuncture inhibits ferroptosis by regulating the glutathione peroxidase 4/long-chain acyl-CoA synthetase 4 axis,thereby reducing secondary neuronal damage and glial scar formation after cervical spinal cord injury and improving neurological function.

Objective To investigate the prognostic value of perfusion MRI in elderly patients with posterior circulation cerebral ischemia after interventional therapy.Methods A prospective study was conducted on 200 patients with posterior circulation cerebral ischemia who received interven-tional therapy in our hospital from June 2021 to March 2024.According to the prognosis,they were divided into a good prognosis group(142 patients)and a poor prognosis group(58 patients).The detection rate of abnormal sequences and related parameters were compared between the two groups.ROC curve analysis was adopted to evaluate the diagnostic efficiency of cerebral blood vo-lume(CBV),time to peak(TTP),mean transmit time(MTT)and cerebral blood flow(CBF)alone and combined together.Results The poor prognosis group had significantly higher abnor-mal detection rates than the good prognosis group(all P＜0.05).Obvious differences were observed between the two groups in terms of lesion location,stenosis rate,and CBF values in bilateral occipital lobes and cerebelli(all P＜0.01).The good prognosis group exhibited higher CBV and CBF values and lower TTP and MTT values than the poor prognosis group(P＜0.01).The above four values combined together showed better diagnostic efficiency than any single va-lues and obtained biggest AUC value,and the cut-off value of CBV,TTP,MTT,and CBF was 751.23 ml,21.03 s,590.55 s,and 257.88 ml/(100 g·min),respectively.Conclusion The com-bined diagnosis of perfusion MRI indicators can significantly improve the prognostic efficiency after interventional therapy in elderly patients with posterior circulation cerebral ischemia.

Rapid turnover of the intestinal epithelium is a critical strategy to balance the uptake of nutrients and defend against environmental insults, whereas inappropriate death promotes the spread of inflammation. PPARα is highly expressed in the small intestine and regulates the absorption of dietary lipids. However, as a key mediator of inflammation, the impact of intestinal PPARα signaling on cell death pathways is unknown. Here, we show that Pparα deficiency of intestinal epithelium up-regulates necroptosis signals, disrupts the gut vascular barrier, and promotes LPS translocation into the liver. Intestinal Pparα deficiency drives age-related hepatic steatosis and aggravates hepatic fibrosis induced by a high-fat plus high-sucrose diet (HFHS). PPARα levels correlate with TRIM38 and MLKL in the human ileum. Inhibition of PPARα up-regulates necroptosis signals in the intestinal organoids triggered by TNF-α and LPS stimuli via TRIM38/TRIF and CREB3L3/MLKL pathways. Butyric acid ameliorates hepatic steatosis induced by intestinal Pparα deficiency through the inhibition of necroptosis. Our data suggest that intestinal PPARα is essential for the maintenance of microenvironmental homeostasis and the spread of inflammation via the gut-liver axis.

In recent years， the incidence of colorectal cancer has been rising in China， and with the promotion of early screening and early diagnosis， most colorectal cancers are able to achieve long-term survival through timely diagnosis and treatment. Nevertheless， 30%-70% of patients with early to mid-stage colorectal cancer after radical surgery still have psychological problems such as anxiety， depression， and fear of recurrence and metastasis， and they hope to seek help from traditional Chinese medicine（TCM） treatment. In order to further standardize the integrated traditional Chinese and western medicine psychological rehabilitation interventions of stage Ⅰ-Ⅲ colorectal cancer after radical surgery， and to improve the diagnosis and treatment level， under the support of the pilot project of clinical collaboration between Chinese and western medicine for major and difficult diseases of National Administration of TCM， experts in oncology， integrated Chinese and western medicine， psychology， surgery， nursing， evidence-based medicine and other disciplines from 10 units nationwide participated in the work， led by Xiyuan Hospital，China Academy of Chinese Medical Sciences and Beijing Cancer Hospital. Based on the methodology and process of guideline development of the World Health Organization Handbook for Guideline Development and the Regulations for Group Standards of China Association of Chinese Medicine， the Guidelines for Psychological Rehabilitation Intervention Combined Integrated Traditional Chinese and Western Medicine After Radical Surgery for Early and Middle Stage Colorectal Cancer have been developed according to the current best evidence， extensive consultation with clinical experts and following the situation of current clinical practice. The guideline provides the psychological characteristics， the needs and willingness to accept psychological rehabilitation， the interventions for psychological rehabilitation， evaluation of efficacy， follow-up review， educational guidance and others of patients with stage Ⅰ-Ⅲ colorectal cancer after radical surgery. It can provide guidance for TCM（integrated Chinese and western medicine） clinicians and psychologists engaged in the psychological rehabilitation of integrated Chinese and western medicine oncology， especially for doctors in primary medical institutions.

Objective:To evaluate the prognostic effects of two comprehensive geriatric assessment (CGA) methods in elderly patients with acute myeloid leukemia (AML).Methods:Ninety-seven patients with newly diagnosed AML at Beijing Hospital from August 2008 to December 2019 were included (≥60 years old). All patients were evaluated by two methods of CGA. One was IACA index proposed by Beijing Hospital, including instrumental activities of daily living (IADL), age, Charlson comorbidity index (CCI), albumin; the other was proposed by Italian FIL study group (FIL-CGA), including activities of daily living (ADL), IADL, age, and modified cumulative illness rating score for geriatrics (MCIRS-G).Results:Among 97 patients, 54 patients received standard chemotherapy, 16 with decitabine, 2 with targeted therapy and 25 with the best supportive therapy. The overall response rate (ORR) in 72 treated patients were 67.7%, 33.3% and 0 respectively in fit, unfit and frail groups according to IACA index ( P=0.001). Based on FIL-CGA, the ORRs of fit, unfit and frail groups were 52.5%, 41.7% and 35.0% respectively ( P=0.418). The 1-year OS rates of fit, unfit and frail groups regarding IACA method were 78.7%, 27.7% and 0 respectively ( P<0.01). The 1-year OS rates of fit, unfit and frail groups regarding FIL-CGA method were 67.8%, 28.2% and 13.9% respectively ( P<0.01), while no significant difference was seen between unfit group and frail group ( P=0.111). The early death rates of fit, unfit and frail groups by IACA were 0, 6.0% and 28.6% respectively ( P=0.006), while those by FIL-CGA were 2.3%, 5.9%, 13.9% respectively ( P=0.123). Conclusion:Compared with FIL-CGA method, IACA predicts more effectively the treatment response, survival and early mortality in elderly patients with AML.

Objective: To evaluate the effects of extended nursing mode on the asthmatic children with allergic rhinitis (AR). Methods: Totally116 children aged 6-14 years old with asthma and AR were enrolled to this study from November 2015 to October 2016 in our hospital. They were divided into the regular nursing group and the extended nursing group according to the voluntary principle. The patients in regular nursing group were received routine nursing care in or out of hospital, while the patients in extended nursing group received extended care besides routine nursing. The children were required to record diary about asthma and AR And participate in asthma action projects. Before and after intervention we observed the quantitative score of symptoms and signs, the times of acute attack, the times of oblivion medication, the average days of stay in hospital, the days of fail to School or kindergarten, the lung function and the fractional exhaled nitric oxide (FeNO) in children with asthma and AR within 1 year. These above marks were assessed five times respectively at starting (baseline) , 3 months, 6 months, 9 months and 12 months (1 year) The differences between two groups were compared with appropriate statistical methods. Results: 1 year later, out of 58 cases in extended nursing group, 40 patients (68.97%)were in good control and 18 cases (31.03%) in partial control. Out of 58 cases in regular nursing group, 22 cases (37.93%) were in good control and 36 patients (62.07%) in partial control. There were significant differences between two groups in the effect of disease (χ²=11.23, all P<0.01), the experimental group was significantly better than the control group. The symptoms and signs of allergic rhinitis average scores in regular nursing group were 1.88 ± 0.72, extended nursing group were 0.79 ± 0.71, the difference was statistically significant (t=8.080, P<0.01) with the extended nursing group much better that the regular nursing group. The symptoms and signs of asthma average scores in regular nursing group were1.83 ± 0.75, extended nursing group were 0.88 ± 0.67, the difference was also statistically significant (t=7.133, P<0.01) with the extended nursing group much better that the regular nursing group. In extended nursing groups within 1 year the numbers of acute attack (0.60±0.59), the times of oblivion medication (11.05±7.40), the average days of stay in hospital (8.83±2.79) days,the average days of failing to school or kindergarten (8.69±5.46) days, while in regular nursing group within 1 year the numbers of acute attack(2.94±1.52), the times of oblivion medication (35.28±8.84), the average days of stay in hospital(20.95±5.46 days), the average days of fail to school or kindergarten(24.72±5.92) days, the differences were also statistically significant (t=10.50-15.87, P<0.01). The lung function in extended nursing group (PEF: 82.02±6.04, FEVI: 88.19±5.10, FEV25: 80.67±4.88, FEV50: 80.07±3.73, FEV75: 81.52±3.85) and in regular nursing group (PEF: 79.02±6.12,, FEV1: 80.52±4.72, FEV25: 75.05±7.79, FEV50: 77.59±4.60, FEV75: 78.41±4.19) . The differences were also statistically significant (t=2.90-6.15, P<0.01).The FeNO(13.66±2.87) ppb in extended nursing group and (14.95±3.12) ppb in regular nursing group. There were statistical significant differences between the two groups (t=2.30, P<0.05) with extended nursing group much better than regular nursing group. Conclusion The effect of extended care group is better than that of regular nursing group, and extended care is much more benefit to control asthma and allergic rhinitis in children.

AIM: To observe the effect of piceatannol on the kidney of diabetic nephropathy rats in early stage, and to explore the possible mechanisms.METHODS: The rats were randomly divided into 5 groups: control group, model group, low dose of piceatannol treatment group, medium dose of piceatannol treatment group and high dose of piceatannol treatment group.The rat model of diabetic nephropathy was induced accordingly, and the rats received 20 mg/kg, 40 mg/kg or 60 mg/kg of piceatannol by gavage once a day for 4 weeks.Blood glucose was detected by glucometer.The urea nitrogen and creatinine levels in the serum were measured by urease-glutamate dehydrogenase enzymatic and inosine acid oxidase methods, respectively, and 24 h urinary microalbumin was analyzed by immune transmission turbidimetry test.Moreover, the pathological changes of the kidney tissues were observed under microscope with HE staining.The protein expression of TGF-β1 and Smad 7 and the phosphorylation levels of Smad2 and Smad3 were determined by Western blot.RESULTS: Compared with model group, piceatannol treatment significantly decreased the levels of blood glucose, blood urea nitrogen and urinary microalbumin, but had no effects on serum creatinine.Furthermore, HE staining showed that the increased mesangial cells, matrix hyperplasia and degenerated epithelial cells in model group were markedly inhibited after piceatannol treatment.Additionally, piceatannol treatment also reduced the protein expression of TGF-β1 and Smad 7, and the phosphorylation levels of Smad2 and Smad3.CONCLUSION: Piceatannol attenuates pathological progression in the kidney of diabetic nephropathy rats in early stage, which may be through inhibiting TGF-β/Smad signaling pathway.

Objective To investigate the clinical effect of Edaravone on transient ischemic attack and serum superoxide dismutase and malondialdehyde levels in the elderly.Methods Ninety eight cases with transient ischemic attack treated in our hospital were chosen as the objects, which were randomly divided into observation group and control group (n=49 for each).Patients in observation group were treated with Edaravone combined with conventional therapy, and patients in control group were treated with conventional therapy.The clinical effect and levels of SOD and MDA were analyzed and compared between the two groups.Results The effective rate and total efficiency were higher in observation group than in control group (79.6％ vs.55.1％, 95.9％ vs.83.7％, x2 =6.914 and 4.354, P=0.008 and 0.032).The SOD level was higher and the MDA level was lower in observation group than in control group (both P＜0.001) after treatment.Conclusions Edaravone could improve the symptoms of transient ischemic attack in the elderly, and increase the activity of SOD and reduce MDA level, which is helpful to reduce lipid peroxides, alleviate free radical toxicity, and improve the anti-oxidation ability.