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A major impedance to neuronal regeneration after peripheral nerve injury(PNI)is the activation of various programmed cell death mechanisms in the dorsal root ganglion.Ferroptosis is a form of pro-grammed cell death distinguished by imbalance in iron and thiol metabolism,leading to lethal lipid peroxidation.However,the molecular mechanisms of ferroptosis in the context of PNI and nerve regeneration remain unclear.Ferroportin(Fpn),the only known mammalian nonheme iron export protein,plays a pivotal part in inhibiting ferroptosis by maintaining intracellular iron homeostasis.Here,we explored in vitro and in vivo the involvement of Fpn in neuronal ferroptosis.We first delineated that reactive oxygen species at the injury site induces neuronal ferroptosis by increasing intracellular iron via accelerated UBA52-driven ubiquitination and degradation of Fpn,and stimulation of lipid peroxidation.Early administration of the potent arterial vasodilator,hydralazine(HYD),decreases the ubiquitination of Fpn after PNI by binding to UBA52,leading to suppression of neuronal cell death and significant ac-celeration of axon regeneration and motor function recovery.HYD targeting of ferroptosis is a promising strategy for clinical management of PNI.
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[Abstract] The circular RNA (circRNA) is a class of endogenous expressed non-coding RNA that are formed by covalently closed cyclization through reverse splicing. In recent years, a variety of highly conserved and cell-type specific circRNA have been identified in eukaryotes. Alzheimer’ s disease (AD) is a common neurodegenerative disease and the most common cause of dementia in the elderly. Recent studies had shown that circRNA was involved in the pathogenesis and development of AD, such as amyloid β-protein (Aβ) metabolic, neuroinflammation, oxidative stress, autophagy and synaptic plasticity. The role and application value of circRNA in AD pathology are reviewed to provide a theoretical basis for the application of circRNA in the treatment and diagnosis of AD.
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Objective To compare the efficacy, safety, and survivability of TCbHP versus AC-THP in the neoadjuvant therapy of HER2-positive breast cancer in real-world. Methods Clinical data of patients with HER2 positive breast cancer, who have received TCbHP or AC-THP as neoadjuvant therapy and completed surgery in 11 third-class hospitals in various cities of Hebei Province, were retrospectively collected.The total pathological complete remission (tpCR) rate, the incidence of grade 3 or higher adverse reactions and the completion rate of the given approaches were compared. Results A total of 110 cases were collected, including 78 cases in the TCbHP group and 32 cases in the AC-THP group.The tpCR rate of the TCbHP group was higher than that of the AC-THP group, but the difference was not statistically significant (64.10% vs. 56.25%, P=0.441).No significant difference was found in the breast pathologic complete response (bpCR) and axillary pathologic complete response (apCR) rates between the TCbHP group and the AC-THP group (70.51% vs. 56.25%, P=0.150;78.21% vs. 84.38%, P=0.462).Exploratory analysis revealed that the tpCR rate of the TCbHP group was significantly higher than that of the AC-THP group in patients with HR-positive breast cancer (51.11% vs. 22.22%, P=0.036).As for the patients with HR-negative breast cancer, the tpCR rate of the AC-THP group tended to be higher than that of the TCbHP group (100% vs. 81.82%, P=0.088).The incidence of grade 3 or higher adverse reactions in the TCbHP group was slightly higher than that in the AC-THP group (12.82% vs. 9.38%, P=0.753).No deaths occurred in the whole group.Moreover, no significant difference was observed in the completion rate of the given approaches between the TCbHP group and the AC-THP group (92.31% vs. 90.63%, P=0.718). Conclusion In real-world clinical practice, the neoadjuvant therapy of TCbHP and AC-THP are effective, safe, and well tolerated among patients with HER2-positive breast cancer.The tpCR rate between the two approaches was not significantly different.The AC-THP regimen could also be considered as one of the optimal regimens for HER2-positive breast cancer in neoadjuvant therapy.
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ObjectiveTo observe the synergistic action of lower He-sea and Front-mu points in treating functional dyspepsia by adopting electroacupuncture at the lower He-sea and Frong-mu points of stomach.MethodSixty patients with functional dyspepsia were randomized into a lower He-sea group, a Front-mu group, and a combining group of lower He-sea and Front-mu points, to receive treatment once daily, 5 sessions a week, totally for 4 weeks. Nepean Dyspepsia Index (NDI) was tested before and after intervention, and the general therapeutic efficacy was evaluated.ResultThe total effective rate was 100.0% in the combining group, versus 90.0% in the Front-mu group and 90.0% in the lower He-sea group, and the differences were statistically significant (P0.05), while there were significant differences in comparing NDSI and NDLQI after treatment (P<0.05). ConclusionIt can improve the functional dyspepsia symptoms by using the lower He-sea point and Front-mu point together or using them separately, while the combining use can produce a more significant efficacy.
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Objective To know the self-perceived burden (SPB) of young and middle-aged patients with first-attack of ischemic stroke and to analyze the influential factors of SPB as well as its relevance to the quality of life.Methods The patients' general information questionnaire,SPB Self-evaluation Scale,QOL-BREF were adopted to investigate young and middle-aged patients with first-attack of ischemic stroke.Results 100 patients were included,66 were male,34 were female.The Minimum age was 19.4 years old.The maximum age was 59 years old.The mean age was (50.80 ± 7.98) years old.The average SPB score was (24.21 ± 7.39) points,which was in the medium level.31 cases (31%) didn't have obvious SPB; 65 cases (65%) suffered mild-to-moderate SPB; 4 cases (4%) claimed they had severe SPB.There was negative correlation between the SPB and their quality of life.The multi-factor analysis showed that gender,the patients' understanding of disease,and caregivers' health situation were the influential factors of SPB.Conclusions Since self-perceived burden is common in young and middle-aged patients with ischemic stroke,clinical nurses should assess patients' self-perceived burden so as to provide targeted nursing intervention and health education,thereby to ease the burden on patients' self feeling,eventually to improve the level of their mental and physical health.
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OBJECTIVE:To intensify the governmental monitoring on drug bidding in medical institutions.METHODS:Governmental monitoring network for drug bidding in medical institutions was established by using program of Dreamwcavcr?Mx together with Flash,Photoshop and Fireworks.RESULTS&CONCLUSION:This network can effectively perform the monitoring during the whole process of purchasing and selling of medicine,thus promoting the increase of the ratio of drug purchasing by bidding and facilitating the construction of occupational moral standard.