1.Effects of sacubitril/valsartan on renal function in patients with primary hypertension
Yajun XIE ; Bei ZHAO ; Xueyao FENG ; Shixing LI ; Xiaoye LI ; Ning SHI
China Pharmacy 2024;35(14):1770-1775
OBJECTIVE To investigate the effects of sacubitril/valsartan on renal function in patients with primary hypertension. METHODS A retrospective study was conducted among patients with primary hypertension who were admitted to PLA Strategic Support Force Characteristic Medical Center from January 2018 to June 2023. Based on their medication, they were divided into two groups: sacubitril/valsartan group and valsartan group. Propensity score matching was used to match baseline data between the two groups. Patients were treated with antihypertensive drugs based on improving their lifestyle. Sacubitril/valsartan group additionally received oral administration of 200 mg Sacubitril/valsartan tablets once daily, while valsartan group additionally received oral administration of 80 mg Valsartan capsules once daily. The increase amplitude of serum creatinine from baseline, the proportion of patients with elevated serum creatinine >30%-50% or >50%, and the proportion of patients with hyperkalemia (serum potassium ≥5.5 mmol/L) were compared between two groups at 2 months and 6 months after treatment. The trends of changes in serum creatinine, serum potassium and estimated glomerular filtration rate (eGFR) were compared between the two groups before treatment (at baseline), 2 months and 6 months after treatment. RESULTS After propensity score matching, there were 62 patients in sacubitril/valsartan group and 61 patients in valsartan group; there were no significant differences in baseline characteristics between the two groups before treatment (P>0.05), indicating comparability. After 6 months of treatment, the increase of serum creatinine in the sacubitril/valsartan group was significantly lower than that in the valsartan group (P=0.003); the proportion of patients with elevated serum creatinine >30%-50% in the sacubitril/valsartan group was significantly lower than that in the valsartan group (P=0.045). None of the patients experienced hyperkalemia events after 2 months and 6 months of treatment. Repeated measures analysis of variance showed significantly statistical differences in serum creatinine and eGFR between the two groups within 6 months of treatment (P<0.001). Patients taking valsartan experienced a continuous increase in serum creatinine levels and a decrease in eGFR, while patients taking sacubitril/valsartan showed a first increase and then a decrease in serum creatinine levels, and a first decrease and then an increase in eGFR with a prolonged duration of medication. CONCLUSIONS Sacubitril/valsartan can delay or even reverse the decline in renal function levels, and limit the deterioration of renal function in patients with primary hypertension, without increasing the risk of hyperkalemia.
2.Retest improvement for minipool nucleic acid testing positive samples
Yun HOU ; Qiuxia FENG ; Bei LI ; Longmu ZHANG ; Zhongsi YANG ; Shuxian JIAO
Chinese Journal of Blood Transfusion 2024;37(2):190-195
【Objective】 To analyze the correlation between the distribution interval of minipool nucleic acid testing(NAT) positive CT value and the resolution rate, so as to improve the retest model and reduce residual risk of blood transfusion. 【Methods】 The resolution testing results by Cobas S201 system of our blood center from January 2017 to December 2021 were retrospective analyzed, and the retest model was developed based on the distribution interval of CT values. For minipool NAT HBV positive samples from March 2022 to March 2023, synchronous detection was conducted by Cobas S201 and Panther detection system, and the detection results were statistically analyzed. 【Results】 From 2017 to 2021, 474 were minipool NAT positive, among which 324 were HBV positive, accounting for 68.35%. From 2017 to 2020, the proportion of HBV positive per year was significantly higher than that of HCV and HIV(P<0.05). In resolution testing, 167 were HBV repeatable positive and 157 were HBV non-repeatable positive, accounting for 51.54% and 48.46% of HBV minipool NAT positive. HBV repeatable positive samples were with three intervals: CT value≤36, 36
3.Cerebral Glucose Metabolic Features of Parkinson's Disease Based on 18F-FDG PET:A Longitudinal Study
Bei FENG ; Rong WANG ; Ling LI ; Ying LIU ; Huiwei WANG ; Yiyuan DONG ; Qian ZHAO
Chinese Journal of Medical Imaging 2024;32(3):226-232,249
Purpose To establish glucose metabolism patterns of Parkinson's disease(PD)at different periods,and to study the changing pattern of target region of interest(ROI)with the period of time,and then explore the relationship between ROIs and cognitive or motor in different periods.Materials and Methods A total of 42 patients with early-stage PD collected from June 2010 to September 2022 in online data from the markers of Parkinson's progression study which included clinical data,and FDG PET imaging was performed at baseline,12,24,36 and 48 months.The data of 8 healthy volunteers were also obtained from the database,and the time range was the same as that of the above-mentioned PD patients.The longitudinal changes of cerebral glucose metabolism in PD patients and the relationship between PD-associated ROI and movement disorder society-sponsored revision of the unified Parkinson's disease rating scale(MDS-UPDRS)score were evaluated.Results PD was relatively reduced activity located in frontal and parietal association areas and relatively increased activity in the cerebellum,the putamen and the cingulate gyrus.In our study of target ROIs over time,FDG uptake in the caudate nucleus,putamen,pallidum,and cerebellum of patients with PD was initially higher than in the normal group,and subsequently decreased.In contrast,the ROI of PD in the anterior cingulate gyrus,posterior cingulate gyrus,the substantia nigra pars compacta and substantia nigra pars reticulata was initially lower than that in healthy controls and subsequently increased.The putamen,pallidum and caudate nucleus metabolic activity showed a positive correlation in 36 month and MDS-UPDRS scores(r=0.659 5,0.678 7,0.716 7,all P<0.05).The caudate nucleus,putamen and pallidum metabolic activity showed a negative correlation in 24 month and baseline(r=-0.541 8,-0.878 9,-0.887 6,all P<0.05).Conclusion We provide 5-year longitudinal data on changes in 18F-FDG imaging outcomes in early PD.In addition,the glucose metabolic activity of caudate nucleus,putamen and globus pallidus are correlated with MDS-UPDRS scores.
4.The Role of E3 Ligases in Macrophage-mediated Inflammation
Jia-Bei JIN ; Yi-Dong GE ; Xiao-Feng JIN
Progress in Biochemistry and Biophysics 2024;51(9):2037-2060
Macrophages, existed in almost all organs of the body, are responsible for detecting tissue injury, pathogens, playing a key role in host defense against a variety of invading pathogens triggering inflammatory responses. Emerging evidence suggests that macrophage-mediated immune responses are efficiently regulated by the ubiquitination modification, which is responsible for normal immune responses. However, numerous studies indicates that the aberrant activation or inhibition of macrophage-mediated immune responses occurs in inflammation, mainly caused by dysregulated ubiquitination modification due to E3 ubiquitin ligases mutations or abnormal expression. Notably, E3 ubiquitin ligases, responsible for recognizing the substrates, are key enzymes in the ubiquitin-proteasome system (UPS) composed of ubiquitin (Ub), ubiquitin-activating E1 enzymes, ubiquitin-conjugating E2 enzymes, E3 ubiquitin ligases, 26S proteasome, and deubiquitinating enzymes. Intriguingly, several E3 ubiquitin ligases are involved in the regulation of some common signal pathways in macrophage-mediated inflammation, including Toll-like receptors (TLRs), nucleotide-binding oligomerization domain (NOD)-like receptors (NLRs), RIG-I-like receptors (RLRs), C-type lectin receptors (CLRs) and the receptor for advanced glycation end products (RAGE). Herein, we summarized the physiological and pathological roles of E3 ligases in macrophage-mediated inflammation, as well as the inhibitors and agonists targeting E3 ligases in macrophage-mediated inflammation, providing the new ideas for targeted therapies in macrophage-mediated inflammation caused aberrant function of E3 ligases.
5.Analysis of the effectiveness of cross-reactive carbohydrate antigen determinant antibody adsorbents in identifying allergen-specific IgE antibodies
Wenling ZHAO ; Bei CAI ; Chuqi SHI ; Zhenzhen SU ; Weihua FENG
Chinese Journal of Preventive Medicine 2024;58(9):1379-1383
This study aimed to investigate the influence of anti-cross-reactive carbohydrate determinant IgE antibodies (anti-CCD IgE) on the detection of allergen-specific IgE (sIgE) antibodies, as well as the application value of anti-CCD IgE adsorbents in detecting allergen sIgE. In this cross-sectional study, a total of 2 636 test samples from patients who received treatment in West China Hospital of Sichuan University and tested allergen sIgE using the western blot method from October 2020 to May 2021 were analyzed. In these samples, 709 samples tested postive of allergen sIgE. 46 stochastic venous serum samples that tested positive in both sIgE and anti-CCD IgE and 1 serum sample that tested positive in sIgE but negative in anti-CCD IgE were collected. These samples were processed by anti-CCD IgE adsorbents, followed by allergen sIgE detection. The difference between the two detection results before and after adsorption was analyzed. The allergen test results showed that the positive rate of anti-CCD IgE in samples was 2.6% (69/2 636) during the period of sample collection. After treatment with anti-CCD IgE adsorbents, the top three allergen-sIgE of the positive rate changed from tree combination 2 (willow/poplar/elm), common ragweed and peanut to dust mite combination, cockroach and crab. The positive anti-CCD IgE results of 46 samples all turned negative and the total positive sIgE antibody dropped by 62.8%; the positive rate of sIgE antibodies with the class result ≥2 significantly decreased after treatment with anti-CCD IgE adsorbents, especially the positive rate of common ragweed dropped by 96.2%. The results of positive samples showed that multiple sIgE antibodies declined by different ranges, involving up to 11 antibodies with a maximum decline of 4 classes. Strongly positive sIgE antibodies (the class result ≥4) also had a high conversion rate of negative (25.0%-100%). The positive sIgE antibodies in about 60% of the samples decreased by more than 2, and the sIgE antibodies in 17.4% of the samples turned completely negative. There was no change in the allergen sIgE detection results of the sample with negative anti-CCD IgE after treatment. In conclusion, sIgE antibodies including targeting common ragweed, humulus, tree combination 2 (willow/poplar/elm), etc. are susceptible to false positives caused by anti-CCD IgE. Treatment of samples with anti-CCD IgE adsorbents can significantly reduce the risk of false positives caused by anti-CCD IgE. It is necessary to pretreat samples that were anti-CCD IgE positive with anti-CCD IgE adsorbents, which can make laboratory results more accurate and provide a reference for diagnosis and prevention of allergic diseases.
6.Analysis of the effectiveness of cross-reactive carbohydrate antigen determinant antibody adsorbents in identifying allergen-specific IgE antibodies
Wenling ZHAO ; Bei CAI ; Chuqi SHI ; Zhenzhen SU ; Weihua FENG
Chinese Journal of Preventive Medicine 2024;58(9):1379-1383
This study aimed to investigate the influence of anti-cross-reactive carbohydrate determinant IgE antibodies (anti-CCD IgE) on the detection of allergen-specific IgE (sIgE) antibodies, as well as the application value of anti-CCD IgE adsorbents in detecting allergen sIgE. In this cross-sectional study, a total of 2 636 test samples from patients who received treatment in West China Hospital of Sichuan University and tested allergen sIgE using the western blot method from October 2020 to May 2021 were analyzed. In these samples, 709 samples tested postive of allergen sIgE. 46 stochastic venous serum samples that tested positive in both sIgE and anti-CCD IgE and 1 serum sample that tested positive in sIgE but negative in anti-CCD IgE were collected. These samples were processed by anti-CCD IgE adsorbents, followed by allergen sIgE detection. The difference between the two detection results before and after adsorption was analyzed. The allergen test results showed that the positive rate of anti-CCD IgE in samples was 2.6% (69/2 636) during the period of sample collection. After treatment with anti-CCD IgE adsorbents, the top three allergen-sIgE of the positive rate changed from tree combination 2 (willow/poplar/elm), common ragweed and peanut to dust mite combination, cockroach and crab. The positive anti-CCD IgE results of 46 samples all turned negative and the total positive sIgE antibody dropped by 62.8%; the positive rate of sIgE antibodies with the class result ≥2 significantly decreased after treatment with anti-CCD IgE adsorbents, especially the positive rate of common ragweed dropped by 96.2%. The results of positive samples showed that multiple sIgE antibodies declined by different ranges, involving up to 11 antibodies with a maximum decline of 4 classes. Strongly positive sIgE antibodies (the class result ≥4) also had a high conversion rate of negative (25.0%-100%). The positive sIgE antibodies in about 60% of the samples decreased by more than 2, and the sIgE antibodies in 17.4% of the samples turned completely negative. There was no change in the allergen sIgE detection results of the sample with negative anti-CCD IgE after treatment. In conclusion, sIgE antibodies including targeting common ragweed, humulus, tree combination 2 (willow/poplar/elm), etc. are susceptible to false positives caused by anti-CCD IgE. Treatment of samples with anti-CCD IgE adsorbents can significantly reduce the risk of false positives caused by anti-CCD IgE. It is necessary to pretreat samples that were anti-CCD IgE positive with anti-CCD IgE adsorbents, which can make laboratory results more accurate and provide a reference for diagnosis and prevention of allergic diseases.
7.Down-regulation of ATM/hnRNPK signaling reduces adriamycin resistance of myeloid leukemia
Jinfang ZHANG ; Mingyan ZHONG ; Quan YANG ; Bei FENG ; Xingdong LI
Basic & Clinical Medicine 2024;44(12):1638-1643
Objective To explore the role of ATM/hnRNPK signaling in the adriamycin resistance of acute myeloid leukemia.Methods Expression of ATM was examined in the adriamycin resistant and sensitive leukemia cell strains with Western blot.ATM expression was down-regulated by RNAi and ATM inhibitor in the adriamycin resist-ant cell strains.Expression level of hnRNPK and LC3Ⅰ/Ⅱ was detected by Western blot and adriamycin sensitivity was measured by CCK8 assay before and after modulation of ATM expression.Results ATM was overex-pressed in adriamycin resistant leukemia cell strains.The decreased expression of ATM restored the sensitivity to adriamycin.Expression level of LC3Ⅱ and hnRNPK was consistent with the modulation of ATM expression.Conclusions The ATM/hnRNPK signaling pathway may play a role in the occurrence of adriamycin resistance in acute myeloid leukemia by regulating autophagy.
8.Diagnostic value of vena contracta area measurement for grading tricuspid regurgitation severity under different etiologies:a three-dimensional echocardiography study
Bei-Qi CHEN ; Yu LIU ; Wu-Xu ZUO ; Quan LI ; Yuan-Feng WU ; De-Hong KONG ; Cui-Zhen PAN ; Li-Li DONG ; Xian-Hong SHU
Fudan University Journal of Medical Sciences 2024;51(4):484-493,504
Objective To explore the cut-off value of three dimensional(3D)vena contracta area(VCA)in diagnosing severe tricuspid regrugitation(TR)under different etiologies and its accuracy and practicality in clinical application.Methods From Mar 2019 to May 2021,ninety-two patients with confirmed TR underwent two dimensional(2D)and 3D transthoracic echocardiography.The correlation and consistency between 3D VCA 3D calculated based on the proximal isokinetic surface area(PISA)effective regurgitant orifice area(EROA)was calculated.Comprehensive 2D multi-parameter method was used as a reference method to calculate the cut-off value of the diagnosis of severe TR.Results A total of 85 patients were ultimately included.3D VCA and 3D PISA EROA had similar and acceptable correlations in both primary TR and secondary TR(primary TR:r=0.831,P<0.01;secondary TR:r=0.806,P<0.01).Bland-Altman analysis showed that 3D VCA overestimated TR compared with 3D PISA EROA(62%overestimated in the total patient population,51%overestimated in primary TR,and 74%overestimated in secondary TR).In secondary TR,the cut-off value of 3D VCA for diagnosing severe TR was 0.45 cm2(sensitivity 89%,specificity 82%);combining clinical symptoms,positive 2D PISA EROA results and 3D VCA results for severe TR,the chi-square value was higher than those only included clinical symptoms or incorporated clinical symptoms and positive 2D PISA EROA results(42.168 vs.26.059 and 16.759,P<0.01).Conclusion 3D VCA would overestimate TR,and had high and incremental diagnostic value for evaluating severe TR in secondary TR.
9.Analysis of anxious and depressive emotions and its influencing factors of patients underwent cervical cancer surgery based on CC-PRO137 scale
Yue YIN ; Shen LUO ; Ling QIU ; Hui WANG ; Yang LIU ; Hao FENG ; Bei-Li WANG ; Hua JIANG ; Xin WU
Fudan University Journal of Medical Sciences 2024;51(5):643-649
Objective To investigate anxious and depressive emotions in patients underwent cervical cancer surgery and to analyze its influencing factors.Methods A total of 304 patients who underwent primary cervical cancer surgery in Obstetrics and Gynecology Hospital,Fudan University from Oct 2018 to Jun 2021,were recruited to evaluate the clinical effect based on cervical cancer-patient reported outcome 137 scale(CC-PRO137 scale).This study focused on dimensions of depressive and anxious emotions within this scale and explored their influencing factors.Results The average scores of their depressive and anxious emotions within half a year after surgery were 4.141±0.798 and 4.020±0.616,respectively;and the average scores of depressive and anxious emotions more than one year after surgery were 4.250±0.802 and 4.097±0.613,respectively.By using statistical methods including analysis of variance and t test,it was found that there were statistically significant differences in the scores of depression and anxiety among cervical cancer patients under different postoperative adjuvant treatments and at different postoperative time points(P<0.05).However,there were no statistically significant differences in the scores of depression and anxiety among patients with different ages,surgical methods,and clinical stages of cervical cancer(P>0.05).Conclusion Patients underwent cervical cancer surgery may suffer varying degree of depressive and anxious emotions,and the main influencing factors are different adjuvant treatments and the length of time for postsurgical recovery.Medical practitioners should strengthen comfort and care for patients with cervical cancer,especially those who receive chemotherapy and radiotherapy treatments and are in the primary stage after the surgery.Formulating positive intervention measures can effectively reduce the psychological pain of patients and safeguard their physical and mental health.
10.Analysis of CHIP-Related Mutation and Risk of Cardio-Cerebro-vasculars Events in Patients with Myeloproliferative Neoplasms
Xue HAN ; Bei-Bei BAI ; Cui-Cui FENG ; Sen ZHAO ; Ye CHEN
Journal of Experimental Hematology 2024;32(1):190-196
Objective:To analyze the mutant spectrum of clonal hematopoiesis of indeterminate potential(CHIP)related mutations and clinical characteristics and to explore the correlation and the possible mechanism between CHIP-related mutations and cardio-cerebrovasculars events(CCEs)in patients with myeloproliferative neoplasms(MPNs).Methods:The clinical data and next-generation sequencing results of 73 MPN patients in Beijing Anzhen Hospital from August 2019 to July 2022 were retrospectively analyzed.Statistical analyses were conducted by multivariate logistic regression for the effects of CHIP-related mutations and inflammatory cytokines on CCEs for MPNs patients.Results:Fifty-five cases of MPN(75.3%)showed positive in CHIP-related genes.There was no significant difference in variant allele frequency of CHIP-related gene between essential thrombocythemia(ET)and polycythemia vera(PV).CHIP-related gene mutations were mainly single gene mutations,with mutation rate from high to low as JAK2V617F(63.0%,46/73),ASXL1(16.4%,12/73),TET2(11.0%,8/73),DNMT3A(9.6%,7/73),SRSF2(6.9%,5/73),SF3B1(4.1%,3/73),TP53(1.4%,1/73)and PPM1D(1.4%,1/73).The mutation rate of CHIP-related genes in MPN patients>60 years old was significantly higher than that in the patients ≤ 60 years old[91.7%(33/36)vs 59.5%(22/37)].CCEs occurred in 27 MPNs patients(37.0%,MPNs/CCEs),and 5 had recurrent CCEs,all of which were arterial events.Age(62.8±12.8 years vs 53.9±15.8 years,P=0.015),IL-1β level(17.7±26.0 vs 4.3±8.6,P=0.012),IL-8 level(360.7±598.6 vs 108.3±317.0,P=0.045),the proportion of the patients with thrombosis history(29.6%vs 2.2%,P=0.020),and the detection rate of CHIP-related mutations(88.9%vs 67.4%,P=0.040)in the group with CCEs were higher than those in the group without CCEs.Multivariate Logistic regression analysis showed that age(OR=0.917,95%CI:0.843-0.999,P=0.047),thrombosis history(OR=34.148,95%CI·2.392-487.535,P=0.009),any CHIP-related mutations(OR=16.065,95%CI·1.217-212.024,P=0.035),and elevated levelofIL-1β(OR=0.929,95%CI:0.870-0.992,P=0.027)were independent risk factors for MPNs/CCEs.CHIP-related gene mutations were not associated with CCEs in MPN patients,but DNMT3A(OR=88.717,95%CI:2.690-292.482,P=0.012)and ASXL1(OR=7.941,95%CI:1.045-60.353,P=0.045)were independent risk factors for CCEs in PV.Conclusion:There is a higher mutation rate of CHIP-related genes in MPN patients,especially those over 60 years old.Older age,thrombosis history,CHIP-related mutations and IL-1βelevated levels are independent risk factors for CCEs in MPN.DNMT3A and ASXL1 mutations are independent risk factors for CCEs in PV patients.CHIP-related gene mutations and inflammatory cytokine IL-1 β elevated levels may be the novel risk factors for CCEs in MPN.

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