1.Research progress on GRIN1 gene mutation-related epilepsy: From mechanisms to clinical applications
Yanling TANG ; Xiaorong LIU ; Jia LI
Journal of Apoplexy and Nervous Diseases 2025;42(8):697-703
Epilepsy is a chronic neurological disease characterized by abnormal synchronous discharges of brain neurons. The mutation of GRIN1, a key gene encoding the essential GluN1 subunit of N-methyl-D-aspartate (NMDA) receptors, is closely associated with the pathogenesis and progression of epilepsy. This review summarizes research advances in GRIN1 mutation-related epilepsy, with a focus on its molecular mechanisms, clinical phenotypes, factors influencing phenotypic heterogeneity, and treatment strategies. In terms of molecular mechanisms, GRIN1 mutations affect NMDA receptor function through gain-of-function and loss-of-function mechanisms. Clinical phenotypes show significant heterogeneity, including seizure types, age of onset, and comorbid neurodevelopmental disorders. This heterogeneity may be related to the domain where the mutation is located, the mutation type, and the degree of impact on receptor function. Regarding treatment, gain-of-function mutations can be managed with NMDA receptor antagonists, while loss-of-function mutations may be treated with positive allosteric modulators. The ketogenic diet has also demonstrated potential therapeutic effects. This review aims to provide references for basic research and clinical translation in GRIN1 mutation-related epilepsy, and to promote the development of precision diagnosis and treatment.
2.Effects of Bushen Huoxue Formula (补肾活血方) on TLR/NF-κB Pathway and Intestinal Flora in Ileum Tissue of Parkinson's Disease Model Mice
Xiaorong QI ; Feiran HAO ; Xianglin TANG ; Fagen LI ; Yujia WANG ; Liang WANG ; Yingfan SHEN ; Minghui YANG ; Min LI
Journal of Traditional Chinese Medicine 2024;65(10):1038-1045
ObjectiveTo explore the possible mechanism of Bushen Huoxue Formula (补肾活血方, BHF) in the treatment of Parkinson's disease (PD) from the the perspective of intestinal flora. MethodsSeventy-two male C57/BL6J mice were randomly divided into blank group, model group, Madopar group and low-, medium- and high-dose BHF groups, with 12 mice in each group. The mice in the blank group were intraperitoneally injected with 10 ml/kg of normal saline, and those in the other groups were intraperitoneally injected with 30 mg/kg of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) at a concentration of 3 mg/ml to induce PD mice model, both once a day for 7 consecutive days. After successful modeling, the low-, medium-, and high-dose BHF groups were given 7.5, 15, and 30 g/(kg·d) of BHF by gavage, respectively, while the Madopar group was given 112.5 mg/(kg ·d) of Domedopar tablets by gavage, and the blank group and the model group were given 15 ml/(kg·d) of distilled water, all once a day for 14 consecutive days. The rod climbing test, rotating rod test, grip strength test and weight-bearing swimming test were used to evaluate the behavioral indicators of mice. Western blotting was used to measure the protein expression levels of Toll-like receptor (TLR)/nuclear factor kappa B (NF-κB) pathway inflammatory factors in the mouse ileum, including Toll-like receptor 2 (TLR2), Toll-like receptor 4 (TLR4), NF-κB, tumor necrosis factor α (TNF-α), interleukin 6 (IL-6), and interleukin 17 (IL- 17). 16S rRNA high-throughput sequencing was used to analyze changes in mouse intestinal flora. ResultsCompared to those in the blank group, the mice in the model group had longer bottoming time when climbing the pole, reduced grip strength, shortened rotary pole duration and swimming duration, and increased protein expression levels of TLR2, TLR4, NF-κB, TNF-α, and IL-6 in the ileal tissue (P<0.01). Compared to the model group, the Madopar group and the low-, medium- and high-dose BHF groups had shortened bottoming time of the climbing pole and increased grip strength; the Madopar group and the high-dose BHF group had prolonged rotary pole duration, and reduced protein expressions of TLR2, TLR4, NF-κB, TNF-α, IL-6, and IL-17 levels; and only the high-dose BHF group had prolonged swimming duration (P<0.05 or P<0.01). Compared to those in the low-dose BHF group, the bottoming time of the climbing pole were shorter in the moderate- and high-dose groups (P<0.05 or P<0.01), and the grip strength increased while the protein expression levels of TLR2, TLR4 and IL-17 decreased in the high-dose group (P<0.05 or P<0.01). The intestinal flora results showed significant differences between the blank group and the model group in the Dominance index, Pielou_e index, Shannon index, and Simpson index (P<0.05 or P<0.01). Compared to those of the model group, the Shannon index, Chao1 index, and Observed_otus index of the Madopar group, as well as the Chao1 index, Observed_otus index, Dominance index, Pielou_e index, Shannon index, and Simpson index of the high-dose BHF group all showed significantly statistical differences (P<0.05 or P<0.01). At the phylum level, the relative abundance categories of bacterial phyla with statistically significant differences in each group included Proteobacteria, Bacteroidetes, and Firmicutes (P<0.05 or P<0.01). At the genus level, the relative abundance categories of bacterial genera with statistically significant diffe-rences among each group included Muribaculaceae, Akkermansia, and Helicobacter pylori (P<0.05 or P<0.01). ConclusionThe possible mechanism of BHF in treating PD may be to reconstruct the disordered intestinal flora structure and improve the inflammatory response.
3.Quercetin ameliorates diabetic kidney injury in rats by inhibiting the HMGB1/RAGE/NF-κB signaling pathway
Yifan JIANG ; Xiaorong LI ; Jiayi GENG ; Yongfeng CHEN ; Bi TANG ; Pinfang KANG
Journal of Southern Medical University 2024;44(9):1769-1775
Objective To explore the effect of quercetin on renal inflammation and cell apoptosis in diabetic rats and its possible mechanisms.Methods Twenty-four adult male SD rats were randomized equally into normal control group,high-glucose and high-fat feeding group,streptozotocin(STZ)-induced diabetic model group,and quercetin treatment(daily dose 100 mg/kg)group.Pathological changes of the renal tissues of the rats were observed with HE staining,serum inflammatory factor levels were determined with ELISA,and renal expression of NF-κB was observed by immunohistochemistry.Fast blood glucose(FBG),serum levels of triglyceride(TG),BUN,and Scr,and 24-h urine protein content of the rats were measured,and renal expressions of HMGB1,RAGE,NF-κB,Bax,Bcl-2,and caspase-3 were detected with Western blotting.Results The diabetic rats showed significantly increased levels of FBG,TG,BUN,and Scr,renal hypertrophy index,24-h urinary protein content,serum IL-1β,IL-6 and TNF-α levels and renal expressions HMGB1,RAGE,NF-κB,Bax,and caspase-3 with decreased renal expression of Bcl-2.All these changes were significantly alleviated by quercetin treatment of the rats.Conclusion Quercetin can ameliorate kidney injury in diabetic rats possibly by inhibiting the HMGB1/RAGE/NF-κB inflammatory signaling pathway to reduce renal inflammation and renal cell apoptosis.
4.Emergency treatment and nursing for diquat and paraquat poisoning
Mingrong HUANG ; Yahui TANG ; Lina WU ; Xiaorong CHEN ; Bing WU ; Zhongqiu LU ; Yingying HU
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2024;31(4):478-481
Objective To analyze the emergency treatment protocols and nursing measures for patients with diquat and paraquat poisoning,aiming to provide references for updating future clinical practice.Methods A retrospective study was conducted involving 53 patients with diquat and paraquat poisoning admitted to the department of emergency of the First Affiliated Hospital of Wenzhou Medical University from January 1,2019,to December 31,2023.The patients were divided into survival and death groups based on their prognosis.Clinical data were collected to compare organ dysfunction,the proportion of hemoperfusion(HP),average number of HP sessions,the proportion of blood purification,average duration of blood purification,and the proportion of HP combined with continuous renal replacement therapy(CRRT)between two groups of patients with different prognoses.Results Among the 53 patients,27(50.94%)were male and 26(49.06%)were female;with an age range of 14 to 86 years and a mean age of(38.13±19.68)years.Fifty-two cases were due to intentional ingestion,and 1 was accidental.The detected blood concentrations of diquat ranged from 57.38 to 119762.00 μg/L,while those of paraquat ranged from 60.12 to 71 244.89 μg/L.Forty patients developed multiple organ dysfunction syndrome(MODS),with 38 ultimately progressing to multiple organ failure,primarily affecting the gastrointestinal tract,kidneys,and liver.After aggressive treatment and nursing,the blood concentrations of 13 patients(24.53%)dropped below 50 μg/L,and they were discharged after 4 to 34 days of hospitalization.Thirty-two patients'families opted for withdrawal of treatment and discharge,with subsequent confirmation of death after follow-up,hospital stay:1-4 days.Eight patients died in-hospital,hospital stay:1-3 days,resulting in a total mortality rate of 40 cases(75.47%).Compared to the survival group,the death group had significantly higher rate of neurological,renal,respiratory,and liver injuries[neurological:90.00%(36/40)vs.15.38%(2/13),renal:95.00%(38/40)vs.69.23%(9/13),respiratory:97.50%(39/40)vs.30.77%(4/13),liver injury:85.00%(34/40)vs.46.15%(6/13),all P<0.05].Furthermore,the death group had significantly lower average number of HP sessions and average duration of blood purification compared to the survival group[average number of HP sessions:4.35±2.42 vs.6.62±1.17,average duration of blood purification time(days):1.53±1.09 vs.5.23±3.90,both P<0.05].Conclusions Poisoning with a mixture of diquat and paraquat is life-threatening and associated with a high mortality.In addition to systematic treatment,individualized and dynamic nursing support should be provided,including close monitoring of the manifestations and laboratory indicators of affected organ systems.Therefore,optimization treatment protocols during the peak mortality period may help reduce mortality in patients with diquat and paraquat poisoning.
5.Quercetin ameliorates diabetic kidney injury in rats by inhibiting the HMGB1/RAGE/NF-κB signaling pathway
Yifan JIANG ; Xiaorong LI ; Jiayi GENG ; Yongfeng CHEN ; Bi TANG ; Pinfang KANG
Journal of Southern Medical University 2024;44(9):1769-1775
Objective To explore the effect of quercetin on renal inflammation and cell apoptosis in diabetic rats and its possible mechanisms.Methods Twenty-four adult male SD rats were randomized equally into normal control group,high-glucose and high-fat feeding group,streptozotocin(STZ)-induced diabetic model group,and quercetin treatment(daily dose 100 mg/kg)group.Pathological changes of the renal tissues of the rats were observed with HE staining,serum inflammatory factor levels were determined with ELISA,and renal expression of NF-κB was observed by immunohistochemistry.Fast blood glucose(FBG),serum levels of triglyceride(TG),BUN,and Scr,and 24-h urine protein content of the rats were measured,and renal expressions of HMGB1,RAGE,NF-κB,Bax,Bcl-2,and caspase-3 were detected with Western blotting.Results The diabetic rats showed significantly increased levels of FBG,TG,BUN,and Scr,renal hypertrophy index,24-h urinary protein content,serum IL-1β,IL-6 and TNF-α levels and renal expressions HMGB1,RAGE,NF-κB,Bax,and caspase-3 with decreased renal expression of Bcl-2.All these changes were significantly alleviated by quercetin treatment of the rats.Conclusion Quercetin can ameliorate kidney injury in diabetic rats possibly by inhibiting the HMGB1/RAGE/NF-κB inflammatory signaling pathway to reduce renal inflammation and renal cell apoptosis.
6.A consensus on the management of allergy in kindergartens and primary schools
Chinese Journal of School Health 2023;44(2):167-172
Abstract
Allergic diseases can occur in all systems of the body, covering the whole life cycle, from children to adults and to old age, can be lifelong onset and even fatal in severe cases. Children account for the largest proportion of the victims of allergic disease, Children s allergies start from scratch, ranging from mild to severe, from less to more, from single to multiple systems and systemic performance, so the prevention and treatment of allergic diseases in children is of great importance, which can not only prevent high risk allergic conditions from developing into allergic diseases, but also further block the process of allergy. At present, there is no consensus on the management system of allergic children in kindergartens and primary schools. The "Consensus on Allergy Management and Prevention in Kindergartens and Primary Schools", which includes the organizational structure, system construction and management of allergic children, provides evidence informed recommendations for the long term comprehensive management of allergic children in kindergartens and primary schools, and provides a basis for the establishment of the prevention system for allergic children.
7.Gut Microbiota Dysbiosis Correlates With Long COVID-19 at One-Year After Discharge
Dongmei ZHANG ; Yaya ZHOU ; Yanling MA ; Ping CHEN ; Jian TANG ; Bohan YANG ; Hui LI ; Mengyuan LIANG ; YuE XUE ; Yao LIU ; Jianchu ZHANG ; Xiaorong WANG
Journal of Korean Medical Science 2023;38(15):e120-
Background:
Long coronavirus disease 2019 (COVID-19) in recovered patients (RPs) is gradually recognized by more people. However, how long it will last and the underlining mechanism remains unclear.
Methods:
We conducted a prospective follow-up study to evaluate the long-term symptoms and clinical indices of RPs at one-year after discharge from Union Hospital, Wuhan, China between December 2020 to May 2021. We also performed the 16S rRNA sequencing of stool samples from RPs and healthy controls (HCs) and analyzed the correlation between the gut microbiota and long COVID-19.
Results:
In total, 187 RPs were enrolled, among them, 84 (44.9%) RPs reported long COVID-19 symptoms at one-year after discharge. The most common long-term symptoms were cardiopulmonary symptoms, including chest tightness after activity (39/187, 20.9%), palpitations on exercise (27/187, 14.4%), sputum (21/187, 11.2%), cough (15/187, 8.0%) and chest pain (13/187, 7.0%), followed by systemic symptoms including fatigue (34/187, 18.2%) and myalgia (20/187, 10.7%), and digestive symptoms including constipation (14/187, 7.5%), anorexia (13/187, 7.0%), and diarrhea (8/187, 4.3%). Sixty-six (35.9%) RPs presented either anxiety or depression (42/187 [22.8%] and 53/187 [28.8%] respectively), and the proportion of anxiety or depression in the long symptomatic group was significantly higher than that in the asymptomatic group (41/187 [50.6%] vs. 25/187 [24.3%]). Compared with the asymptomatic group, scores of all nine 36-Item Short Form General Health Survey domains were lower in the symptomatic group (all P < 0.05). One hundred thirty RPs and 32 HCs (non-severe acute respiratory syndrome coronavirus 2 infected subjects) performed fecal sample sequencing.Compared with HCs, symptomatic RPs had obvious gut microbiota dysbiosis including significantly reduced bacterial diversities and lower relative abundance of short-chain fatty acids (SCFAs)-producing salutary symbionts such as Eubacterium_hallii_group, Subdoligranulum, Ruminococcus, Dorea, Coprococcus, and Eubacterium_ventriosum_group. Meanwhile, the relative abundance of Eubacterium_hallii_group, Subdoligranulum, and Ruminococcus showed decreasing tendencies between HCs, the asymptomatic group, and the symptomatic group.
Conclusion
This study demonstrated the presence of long COVID-19 which correlates with gut microbiota dysbiosis in RPs at one-year after discharge, indicating gut microbiota may play an important role in long COVID-19.
8.Analysis of red blood cells supply before and after the outbreak of COVID-19 from 2018 to 2021 in 18 domestic blood centers
Dongyan ZHAO ; Hongwei MA ; Dingjie TANG ; Xiaorong FENG ; Hao TIAN ; Mengzhuo LUO ; Nan WU ; Yan LIN ; Xia DU ; Qi FU ; Junlei HUANG ; Changchun LU ; Xiaoli CAO ; Yi YANG ; Lin WANG ; Ying LI ; Hai QI ; Dongtai WANG ; Yan QIU
Chinese Journal of Blood Transfusion 2023;36(10):892-898
【Objective】 To compare the supply data of red blood cells(RBCs) from 18 blood centers in China before and after the outbreak of COVID-19 during 2018 to 2021. 【Methods】 Eight indicators related to RBCs supply from 18 blood centers in China during 2018-2021 were collected retrospectively, including the storage of total amount of qualified RBCs (referred to as the total amount of storage), the distribution of total amount of RBCs (referred to as the total amount of distribution), the distribution amount of RBCs per 1 000 population (referred to as the amount of distribution per 1 000 population), the distribution amount of RBCs from 400 mL original blood per 1 000 population [referred to as the amount of distribution per 1 000 population (400 mL)], the average daily distribution amount of RBCs (referred to as the average daily distribution amount), the average daily storage amount of RBCs (referred to as the average daily storage amount), the average storage days of RBCs when distribute (referred to as the RBC storage days), and the expired amount of RBCs (referred to as the expired amount). Based on the outbreak time of COVID-19, the data of 2018 and 2019 were the pre-pandemic group, and the data of 2020 and 2021 were the post-pandemic group. 【Results】 Data on RBCs supply in 18 blood centers from 2018 to 2021(comparison of the pre-pandemic group and the post-pandemic group): the amount of distribution per 1 000 population (median 14.68 U>13.92 U) decreased, the amount of distribution per 1 000 population (400 mL) (median 10.16 U>9.21 U) decreased, and the difference was statistically significant (P<0.05); data comparison between 2019 and 2020:the total amount of distribution (median 117 770.38 U>99 084.08 U) decreased, the amount of distribution per 1 000 population (median 15.04 U>12.19 U) decreased, the amount of distribution per 1000 population (400 mL) (median 10.11 U>8.94 U), the average daily distribution amount(322.66 U>270.73 U) decreased and RBC storage days (median 10.50 d<11.45 d) increased, the difference has statistical significance (P<0.05); data comparison between 2020 and 2021:the total amount of storage (median 101 920.25 U<120 328.63 U), the total amount of distribution (median 99 084.08 U<118 428.62 U), the amount of distribution per 1 000 population (median 12.19 U<15.00 U), the amount of distribution per 1 000 population (400 mL) (median 8.94 U<9.46 U), the average daily distribution amount (270.73 U>324.46 U), the average daily inventory (median 3 222.00 U<4 328.00 U) increased, the expired amount (median 1.50 U>0.00 U) decreased, the difference has statistical significance (P<0.05). The results of ANOVA showed that there were significant differences on the data related to RBCs supply (except expired amount) in different blood centers (P<0.05). The ratio of average daily stock to average daily distribution in the post-outbreak group (median 12.36 d) was higher than that in the pre-outbreak group (median 10.92 d), the difference has statistical significance (P<0.05), with significant difference among different blood centers (P <0.05). 【Conclusion】 The COVID-19 pandemic has a significant impact on RBCs supply in different blood centers. In the second year of the pandemic, the supply capability had recovered to some extent, and there were differences in RBCs supply in different blood centers.
9.Analysis of early predictors of severe and critical SARS-CoV-2 infection
Bin HUANG ; Fengkun LU ; Xiaorong LI ; Zhanhong TANG ; Juntao HU
The Journal of Practical Medicine 2023;39(21):2736-2742
Objective To explore the early predictors of the development of the novel coronavirus infection(COVID-19)into severe and critical forms.Methods COVID-19 patients hospitalized in the Department of Intensive Care Medicine,Infection ward,Respiratory and Critical Care Medicine of the First Affiliated Hospital of Guangxi Medical University from December 2022 to March 2023 were selected as the study objects,and were divided into mild/medium group,severe group,and critical group according to the severity of illness during hospitalization.General clinical data and early laboratory results of the three groups were collected and compared.Results A total of 242 patients with novel coronavirus infection were included,including 117 mild/medium patients,55 severe patients,and 70 critically severe patients.There were 165 males and 77 females with a median age of 70(59,80)years.The age,sex,diabetes,heart disease,stroke,combined pneumonia,combined bloodstream infection,APACHE Ⅱ score,respiratory rate on admission,systolic blood pressure,and early white blood cell count(WBC),lymphocyte count(LYM),urea,creatinine,albumin,C-reactive protein,D-dimer,interleukin-6(IL-6),and calcium reduction of patients in the three groups had significant(all P<0.05).Ordered logistic regression shows,previous heart disease,stroke,combined bloodstream infection,WBC,high IL-6 level,and low LYM level were independent risk factors for severe and critical COVID-19 infection[odds ratio(OR)and 95%confidence interval(95%CI)were 3.253(1.694~6.246),5.251(2.378~11.592),respectively.6.920(2.499~19.189),1.111(1.041~1.186),1.003(1.001~1.006),0.571(0.353~0.926)].ROC curve analysis showed that WBC,LYM,IL-6 and their combined detection had certain predictive value for the severity of COVID-19(all P<0.05),and the combined detection of WBC,LYM and IL-6 had better predictive value than a single indicator(P<0.05).Conclusion Previous heart disease,cerebrovascular disease,early combination of bloodstream infection,high levels of IL-6,white blood cell count,and low lymphocyte levels at admission were independent risk factors that helped to predict the severity of COVID-19 infection early.The combined detection of WBC,LYM and IL-6 has certain predictive value for the development of severe and critical COVID-19.
10.Clinical characteristics of patients with paraquat mixed with diquat poisoning
Xiaorong CHEN ; Xiaoying DU ; Huanle YE ; Hu TANG ; Yahui TANG ; Longwang CHEN ; Jie LIAN ; Bin WU ; Guangju ZHAO ; Zhongqiu LU
Chinese Journal of Emergency Medicine 2023;32(2):203-209
Objective:To explore the clinical characteristics of patients with paraquat mixed with diquat poisoning.Methods:The clinical data of 145 patients with paraquat mixed with diquat poisoning admitted to the Department of Emergency of the First Affiliated Hospital of Wenzhou Medical University from January 20, 2016 to March 31, 2022 were retrospectively analyzed. According to the detection results of plasma toxicants in patients with poisoning, the patients were divided into the paraquat diquat mixed group (mixed group), paraquat group (PQ group) and diquat group (DQ group). The clinical indexes, organ dysfunction, different poisoning doses and prognosis of the three groups were compared. Patients in the mixed group were divided into the survival group and death group according to their 90-day survival, and the differences of each index between the two groups were compared. Kaplan-Meier survival analysis was conducted for each index. After Log-rank test, multivariate Cox regression was used to analyze the risk factors of death in the mixed group.Results:A total of 31 patients were included in the mixed group, 92 patients in the PQ group, and 22 patients in the DQ group. There were significant differences in age, toxic dose, number of organ dysfunction, PSS score and APACHE II score among the three groups ( P<0.05). The main injured organs of the mixed group were gastrointestinal tract, kidney, liver, lung and nervous system. The proportion of organ damage in the mixed group was higher than that in the PQ group and DQ group. The white blood cell count, neutrophil count, HB, creatinine, AST, lactic acid, PT and APTT were statistically significant among the three groups ( P<0.05). In the mixed group, patients taking oral administration of < 20 mL all survived; 8 patients taking oral administration of 20 -50 mL died; 11 patients took oral administration of 51-100 mL and 8 (72.7%) died; and 10 patients took oral administration of more than 100 mL and 9 patients (90%) died. In the mixed group, patients with the concentration of diquat > 5000 ng/mL died. Among 31 patients with mixed poisoning, 30 patients (96.78%) had significantly higher concentrations of diquat than paraquat. There were no significant differences in sex, age, time from poisoning to hospitalization, ingestion amount, lymphocyte count, Hb, BNU, CK, total bilirubin, PH, and PT between the survival group and the death group ( P>0.05). Multivariate Cox regression analysis showed that the ingestion amount, plasma PQ concentration at admission, plasma DQ concentration at admission, and lactic acid were independent risk factors for death ( P<0.05). Conclusions:Paraquat mixed with diquat can cause multiple organ function damage. The main damaged organs are gastrointestinal tract, kidney, liver, lung and nervous system. Compared with PQ or DQ poisoning, mixed poisoning has a higher incidence of organ damage, a more serious condition, and a higher mortality rate. Ingestion amount, plasma PQ concentration at admission, plasma DQ concentration at admission and lactic acid were independent factors influencing the prognosis of mixed poisoning.


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