1.The effect of early enteral nutrition on hospital acquired pneumonia in patients with hypertensive cerebral hemorrhage
Yu YANG ; Qiyou SHEN ; Qirui HUANG
Chinese Journal of Postgraduates of Medicine 2011;34(1):25-27
Objective To investigate the clinical value of early enteral nutrition (EN) on hospital acquired pneumonia (HAP) in postoperative patients with severe hypertensive cerebral hemorrhage.Methods One hundred and forty postoperative patients with severe hypertensive cerebral hemorrhage were divided into treatment group (70 cases) and controll group (70 cases) by random digits table. The treatment group was given EN from the second day after operation, while the control group was given total parenteral nutrition (TPN). The incidence and duration of HAP,the incidence of superinfection,the percent and duration of mechanical ventilation and the mortality rate of HAP was observed. Results The incidence of HAP, superinfection and using mechanical ventilation in treatment group [30.0% (21/70), 12.9% (9/70),35.7%(25/70)] were significantly lower than those in control group [47.1%(33/70) ,27.1%(19/70) ,47.1%( 33/70 )] (P < 0.05 ). The duration of HAP and using mechanical ventilation in treatment group[(6.4 ± 2.3 ),(6.4 ± 0.5 ) d] were significantly lower than those in control group [( 15.6 ± 2.1 ), ( 11.4 ± 0.3 ) d] (P < 0.01or < 0.05 ). The mortality rate of HAP in treatment group was significantly lower than that in control group [8.6% (6/70) vs. 18.6% (13/70),P <0.05]. Conclusion Early EN not only effectively decreases the incidence of HAP and superinfection,but also decreases the incidence of mechanical ventilation, shortens the duration of mechanical ventilation and decreases the mortality rate of HAP.
2.The effect of growth hormone added early enteral nutrition on nutritional status and complications in postoperative patients with hypertensive intra-cerebral hemorrhage
Qiyou SHEN ; Qirui HUANG ; Yu YANG ; Yunan HUANG
Parenteral & Enteral Nutrition 1997;0(04):-
Objective: To explore the effects of growth hormone (GH) added early enteral nutrition(EEN) on nutrition status and complications in postoperative hypertensive intra-cerebral hemorrhage(HICH) patients.Methods: 122 patients with postoperative HICH were randomized into the treat group and control group. The treatment group (61 cases) received enteral nutrition support on the 2nd day after operation, and growth hormone was combined for one week. The control group (61 cases) received total parenteral nutrition(TPN) support. The clinical effect and complications were observed between the two groups. Results: The patientss serum pre-albumin , transferrin ,albumin , and nitrogen balance in the treatment group were significantly better than those in the control group (P
3.Characterization of natural peptides in Pheretima by integrating proteogenomics and label-free peptidomics
Xiaoxiao LUO ; Qirui BI ; Dongdong HUANG ; Yun LI ; Changliang YAO ; Jianqing ZHANG ; Wenlong WEI ; Jiayuan LI ; Zhenwei LI ; Jingxian ZHANG ; Shen JI ; Yurong WANG ; De-An GUO
Journal of Pharmaceutical Analysis 2023;13(9):1070-1079
Pheretima,also called"earthworms",is a well-known animal-derived traditional Chinese medicine that is extensively used in over 50 Chinese patent medicines(CPMs)in Chinese Pharmacopoeia(2020 edi-tion).However,its zoological origin is unclear,both in the herbal market and CPMs.In this study,a strategy for integrating in-house annotated protein databases constructed from close evolutionary relationship-sourced RNA sequencing data from public archival resources and various sequencing al-gorithms(restricted search,open search,and de novo)was developed to characterize the phenotype of natural peptides of three major commercial species of Pheretima,including Pheretima aspergillum(PA),Pheretima vulgaris(PV),and Metaphire magna(MM).We identified 10,477 natural peptides in the PA,7,451 in PV,and 5,896 in MM samples.Five specific signature peptides were screened and then validated using synthetic peptides;these demonstrated robust specificity for the authentication of PA,PV,and MM.Finally,all marker peptides were successfully applied to identify the zoological origins of Brain Heart capsules and Xiaohuoluo pills,revealing the inconsistent Pheretima species used in these CPMs.In conclusion,our integrated strategy could be used for the in-depth characterization of natural peptides of other animal-derived traditional Chinese medicines,especially non-model species with poorly annotated protein databases.
4.Optical coherence tomography angiography manifestations of different degrees of nonproliferative diabetic retinopathy
Menghuan DAI ; Dongli LI ; Yixin CUI ; Lu SHEN ; Qirui LI ; Lingna RAO ; Shurong GUO ; Ling YUAN
International Eye Science 2024;24(2):307-311
AIM: To investigate the differences in varying stages of non-proliferative diabetic retinopathy(NPDR)using optical coherence tomography angiography(OCTA).METHODS: Cross-sectional study. A total of 77 cases(77 eyes)of diabetic patients were included, and they were divided into non-diabetic retinopathy(NDR; 23 eyes)and non-proliferative diabetic retinopathy(NPDR; 54 eyes)groups, further subdivided into mild NPDR(20 eyes), moderate NPDR(20 eyes), and severe NPDR(14 eyes). Foveal avascular zone(FAZ)area, superficial and deep capillary plexus densities(SSP and DSP), and visual acuity(LogMAR)were compared between NDR and NPDR groups. Furthermore, the visual acuity, FAZ area and levels of SSP and DSP were compared in different degrees of NPDR. Correlation analysis were conducted to elucidate relationships between FAZ area, visual acuity, SSP, DSP, and severity of the disease.RESULTS: Compared with the NDR group, the visual acuity(LogMAR)and macular FAZ area increased, while SSP and DSP were decreased in the NPDR group(P<0.05); there were significant differences in visual acuity, FAZ area and SSP and DSP levels in different degrees of NPDR(P<0.05). Visual acuity(LogMAR)and FAZ area displayed a positive correlation with the severity of disease, while SSP and DSP showed a negative correlation.CONCLUSION: With the progression of NPDR, the visual acuity(LogMAR)and FAZ area increased, and the SSP and DSP decreased.
5.Targeting a novel inducible GPX4 alternative isoform to alleviate ferroptosis and treat metabolic-associated fatty liver disease.
Jie TONG ; Dongjie LI ; Hongbo MENG ; Diyang SUN ; Xiuting LAN ; Min NI ; Jiawei MA ; Feiyan ZENG ; Sijia SUN ; Jiangtao FU ; Guoqiang LI ; Qingxin JI ; Guoyan ZHANG ; Qirui SHEN ; Yuanyuan WANG ; Jiahui ZHU ; Yi ZHAO ; Xujie WANG ; Yi LIU ; Shenxi OUYANG ; Chunquan SHENG ; Fuming SHEN ; Pei WANG
Acta Pharmaceutica Sinica B 2022;12(9):3650-3666
Metabolic-associated fatty liver disease (MAFLD), which is previously known as non-alcoholic fatty liver disease (NAFLD), represents a major health concern worldwide with limited therapy. Here, we provide evidence that ferroptosis, a novel form of regulated cell death characterized by iron-driven lipid peroxidation, was comprehensively activated in liver tissues from MAFLD patients. The canonical-GPX4 (cGPX4), which is the most important negative controller of ferroptosis, is downregulated at protein but not mRNA level. Interestingly, a non-canonical GPX4 transcript-variant is induced (inducible-GPX4, iGPX4) in MAFLD condition. The high fat-fructose/sucrose diet (HFFD) and methionine/choline-deficient diet (MCD)-induced MAFLD pathologies, including hepatocellular ballooning, steatohepatitis and fibrosis, were attenuated and aggravated, respectively, in cGPX4-and iGPX4-knockin mice. cGPX4 and iGPX4 isoforms also displayed opposing effects on oxidative stress and ferroptosis in hepatocytes. Knockdown of iGPX4 by siRNA alleviated lipid stress, ferroptosis and cell injury. Mechanistically, the triggered iGPX4 interacts with cGPX4 to facilitate the transformation of cGPX4 from enzymatic-active monomer to enzymatic-inactive oligomers upon lipid stress, and thus promotes ferroptosis. Co-immunoprecipitation and nano LC-MS/MS analyses confirmed the interaction between iGPX4 and cGPX4. Our results reveal a detrimental role of non-canonical GPX4 isoform in ferroptosis, and indicate selectively targeting iGPX4 may be a promising therapeutic strategy for MAFLD.