1.Safety and effectiveness of lecanemab in Chinese patients with early Alzheimer's disease: Evidence from a multidimensional real-world study.
Wenyan KANG ; Chao GAO ; Xiaoyan LI ; Xiaoxue WANG ; Huizhu ZHONG ; Qiao WEI ; Yonghua TANG ; Peijian HUANG ; Ruinan SHEN ; Lingyun CHEN ; Jing ZHANG ; Rong FANG ; Wei WEI ; Fengjuan ZHANG ; Gaiyan ZHOU ; Weihong YUAN ; Xi CHEN ; Zhao YANG ; Ying WU ; Wenli XU ; Shuo ZHU ; Liwen ZHANG ; Naying HE ; Weihuan FANG ; Miao ZHANG ; Yu ZHANG ; Huijun JU ; Yaya BAI ; Jun LIU
Chinese Medical Journal 2025;138(22):2907-2916
INTRODUCTION:
Lecanemab has shown promise in treating early Alzheimer's disease (AD), but its safety and efficacy in Chinese populations remain unexplored. This study aimed to evaluate the safety and 6-month clinical outcomes of lecanemab in Chinese patients with mild cognitive impairment (MCI) or mild AD.
METHODS:
In this single-arm, real-world study, participants with MCI due to AD or mild AD received biweekly intravenous lecanemab (10 mg/kg). The study was conducted at Hainan Branch, Ruijin Hospital Shanghai Jiao Tong University School of Medicine. Patient enrollment and baseline assessments commenced in November 2023. Safety assessments included monitoring for amyloid-related imaging abnormalities (ARIA) and other adverse events. Clinical and biomarker changes from baseline to 6 months were evaluated using cognitive scales (mini-mental state examination [MMSE], montreal cognitive assessment [MoCA], clinical dementia rating-sum of boxes [CDR-SB]), plasma biomarker analysis, and advanced neuroimaging.
RESULTS:
A total of 64 patients were enrolled in this ongoing real-world study. Safety analysis revealed predominantly mild adverse events, with infusion-related reactions (20.3%, 13/64) being the most common. Of these, 69.2% (9/13) occurred during the initial infusion and 84.6% (11/13) did not recur. ARIA-H (microhemorrhages/superficial siderosis) and ARIA-E (edema/effusion) were observed in 9.4% (6/64) and 3.1% (2/64) of participants, respectively, with only two symptomatic cases (one ARIA-E presenting with headache and one ARIA-H with visual disturbances). After 6 months of treatment, cognitive scores remained stable compared to baseline (MMSE: 22.33 ± 5.58 vs . 21.27 ± 4.30, P = 0.733; MoCA: 16.38 ± 6.67 vs . 15.90 ± 4.78, P = 0.785; CDR-SB: 2.30 ± 1.65 vs . 3.16 ± 1.72, P = 0.357), while significantly increasing plasma amyloid-β 42 (Aβ42) (+21.42%) and Aβ40 (+23.53%) levels compared to baseline.
CONCLUSIONS:
Lecanemab demonstrated a favorable safety profile in Chinese patients with early AD. Cognitive stability and biomarker changes over 6 months suggest potential efficacy, though high dropout rates and absence of a control group warrant cautious interpretation. These findings provide preliminary real-world evidence for lecanemab's use in China, supporting further investigation in larger controlled studies.
REGISTRATION
ClinicalTrials.gov , NCT07034222.
Humans
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Alzheimer Disease/drug therapy*
;
Male
;
Female
;
Aged
;
Middle Aged
;
Cognitive Dysfunction/drug therapy*
;
Aged, 80 and over
;
Amyloid beta-Peptides/metabolism*
;
Biomarkers
;
East Asian People
2.Laparoscopic subtotal colectomy with antiperistaltic cecorectal anastomosis versus laparoscopic total colectomy with ileorectal anastomosis for slow transit constipation: a multicenter retrospective cohort study
Yang LUO ; Taotao HOU ; Yifei MU ; Chundi MIAO ; Tingyue GONG ; Jun QIN ; Dongyang WANG ; Dawei SONG ; Hao LI ; Shaolan QIN ; Rong CUI ; Tingfeng WANG ; Ming ZHONG ; Minhao YU
Chinese Journal of Gastrointestinal Surgery 2025;28(12):1426-1433
Objective:To compare postoperative anal function recovery between laparoscopic subtotal colectomy with antiperistaltic cecorectal anastomosis and laparoscopic total colectomy with ileorectal anastomosis for slow transit constipation.Methods:This multicenter retrospective cohort study enrolled patients meeting the following criteria: (1) severe constipation symptoms (<2 bowel movements/week), absent or insignificant defecation urge, abdominal distension, requiring laxatives to maintain bowel movements or laxatives being ineffective; (2) constipation symptoms for over 5 years, ineffective after >2 years of medical treatment, with strong desire for surgery; (3) significantly prolonged colon transit time (>72 hours) without significant gastric or small intestinal transit dysfunction; (4) no organic colonic lesions confirmed by colonoscopy and abdominal CT. Exclusion criteria: (1) patients undergoing open surgery; (2) exclusion of outlet obstruction constipation (e.g., rectocele, rectal prolapse, puborectalis spasm) by functional defecation MRI; (3) comorbid psychiatric disorders; (4) missing clinical data or loss to follow-up (postoperative follow-up <24 months). Based on these criteria, clinical and follow-up data were collected from 220 patients who underwent either laparoscopic subtotal colectomy with antiperistaltic cecorectal anastomosis (LSC group, n = 115) or laparoscopic total colectomy with ileorectal anastomosis (LTC group, n = 105) for slow transit constipation between January 2013 and December 2022. Subjective anal function (Constipation Severity Score and Wexner Fecal Incontinence Score) and objective anal function (positive rate of rectoanal inhibitory reflex [RAIR] and anorectal manometry) were observed preoperatively and at 6, 12, and 24 months postoperatively. Results:No significant differences were found in baseline characteristics between the two groups (all P >0.05). All surgeries were completed successfully without major significant complications. Subjective anal function assessment: At 24 months postoperatively, Constipation Severity Scores decreased significantly compared to preoperative scores in both groups [LSC group: (25.2±2.8) vs. (2.9±1.8), P <0.001; LTC group: (25.8±2.9) vs. (2.8±1.9), P<0.001]. No significant differences were found between the groups at 6, 12, and 24 months postoperatively (all P>0.05). Wexner Fecal Incontinence Scores at 24 months were significantly lower than those at 6 months in both groups [LSC group: (12.9±1.8) vs. (3.9±2.5), P<0.001; LTC group: (12.6±1.8) vs. (5.4±2.4), P<0.001]. Although no significant difference was found at 6 months ( P = 0.190), the LSC group had significantly lower Wexner scores than the LTC group at 12 and 24 months postoperatively (both P < 0.001). Objective anal function assessment: (1) Positive RAIR rate: Preoperative positive RAIR rates were 33.0% (38/115) in the LSC group and 25.7% (27/105) in the LTC group ( P > 0.05). At 24 months, positive rates increased significantly in both groups [LSC: 66.1% (76/115); LTC: 63.8% (67/105)] compared to preoperative rates (both P<0.001), but no significant differences were found between groups at 6, 12, and 24 months (all P>0.05). (2) Resting pressure (RP) and squeeze pressure (SP): No significant differences were found in preoperative RP and SP between groups (all P>0.05). The LSC group had significantly higher RP and SP than the LTC group at 6 and 12 months postoperatively (all P<0.05), but no significant differences were found at 24 months ( P>0.05). Conclusion:Both laparoscopic subtotal colectomy with antiperistaltic cecorectal anastomosis and laparoscopic total colectomy with ileorectal anastomosis are safe for patients with slow transit constipation. However, laparoscopic subtotal colectomy with antiperistaltic cecorectal anastomosis offers superior postoperative anal function recovery.
3.Laparoscopic subtotal colectomy with antiperistaltic cecorectal anastomosis versus laparoscopic total colectomy with ileorectal anastomosis for slow transit constipation: a multicenter retrospective cohort study
Yang LUO ; Taotao HOU ; Yifei MU ; Chundi MIAO ; Tingyue GONG ; Jun QIN ; Dongyang WANG ; Dawei SONG ; Hao LI ; Shaolan QIN ; Rong CUI ; Tingfeng WANG ; Ming ZHONG ; Minhao YU
Chinese Journal of Gastrointestinal Surgery 2025;28(12):1426-1433
Objective:To compare postoperative anal function recovery between laparoscopic subtotal colectomy with antiperistaltic cecorectal anastomosis and laparoscopic total colectomy with ileorectal anastomosis for slow transit constipation.Methods:This multicenter retrospective cohort study enrolled patients meeting the following criteria: (1) severe constipation symptoms (<2 bowel movements/week), absent or insignificant defecation urge, abdominal distension, requiring laxatives to maintain bowel movements or laxatives being ineffective; (2) constipation symptoms for over 5 years, ineffective after >2 years of medical treatment, with strong desire for surgery; (3) significantly prolonged colon transit time (>72 hours) without significant gastric or small intestinal transit dysfunction; (4) no organic colonic lesions confirmed by colonoscopy and abdominal CT. Exclusion criteria: (1) patients undergoing open surgery; (2) exclusion of outlet obstruction constipation (e.g., rectocele, rectal prolapse, puborectalis spasm) by functional defecation MRI; (3) comorbid psychiatric disorders; (4) missing clinical data or loss to follow-up (postoperative follow-up <24 months). Based on these criteria, clinical and follow-up data were collected from 220 patients who underwent either laparoscopic subtotal colectomy with antiperistaltic cecorectal anastomosis (LSC group, n = 115) or laparoscopic total colectomy with ileorectal anastomosis (LTC group, n = 105) for slow transit constipation between January 2013 and December 2022. Subjective anal function (Constipation Severity Score and Wexner Fecal Incontinence Score) and objective anal function (positive rate of rectoanal inhibitory reflex [RAIR] and anorectal manometry) were observed preoperatively and at 6, 12, and 24 months postoperatively. Results:No significant differences were found in baseline characteristics between the two groups (all P >0.05). All surgeries were completed successfully without major significant complications. Subjective anal function assessment: At 24 months postoperatively, Constipation Severity Scores decreased significantly compared to preoperative scores in both groups [LSC group: (25.2±2.8) vs. (2.9±1.8), P <0.001; LTC group: (25.8±2.9) vs. (2.8±1.9), P<0.001]. No significant differences were found between the groups at 6, 12, and 24 months postoperatively (all P>0.05). Wexner Fecal Incontinence Scores at 24 months were significantly lower than those at 6 months in both groups [LSC group: (12.9±1.8) vs. (3.9±2.5), P<0.001; LTC group: (12.6±1.8) vs. (5.4±2.4), P<0.001]. Although no significant difference was found at 6 months ( P = 0.190), the LSC group had significantly lower Wexner scores than the LTC group at 12 and 24 months postoperatively (both P < 0.001). Objective anal function assessment: (1) Positive RAIR rate: Preoperative positive RAIR rates were 33.0% (38/115) in the LSC group and 25.7% (27/105) in the LTC group ( P > 0.05). At 24 months, positive rates increased significantly in both groups [LSC: 66.1% (76/115); LTC: 63.8% (67/105)] compared to preoperative rates (both P<0.001), but no significant differences were found between groups at 6, 12, and 24 months (all P>0.05). (2) Resting pressure (RP) and squeeze pressure (SP): No significant differences were found in preoperative RP and SP between groups (all P>0.05). The LSC group had significantly higher RP and SP than the LTC group at 6 and 12 months postoperatively (all P<0.05), but no significant differences were found at 24 months ( P>0.05). Conclusion:Both laparoscopic subtotal colectomy with antiperistaltic cecorectal anastomosis and laparoscopic total colectomy with ileorectal anastomosis are safe for patients with slow transit constipation. However, laparoscopic subtotal colectomy with antiperistaltic cecorectal anastomosis offers superior postoperative anal function recovery.
4.Clinical effects of comprehensive treatment regimen of traditional Chinese medicine on patients with refractory rhinosinusitis
Qun-Zhen LI ; Jun LI ; Zhong-Yi MIAO ; Shao-Xi FAN ; Ru YAN ; Feng-Mei MA ; Ting RONG
Chinese Traditional Patent Medicine 2024;46(11):3645-3650
AIM To explore the clinical effects of comprehensive treatment regimen of traditional Chinese medicine on patients with refractory rhinosinusitis.METHODS One hundred and sixty-four patients were randomly assigned into control group(82 cases)for 3-month intervention of comprehensive treatment regimen of western medicine(Physiological Seawater Nasal Spray,Budesonide Nasal Spray,Clarithromycin Tablets),and observation group(82 cases)for 3-month intervention of comprehensive treatment regimen of traditional Chinese medicine(Xinzhi Tongqiao Granules,Xinbai Nasal Fumigation Powder,acupuncture of sphenopalatine ganglion).The changes in clinical effects,subjective disease indices(clinical symptom scores,SNOT-20 score,Lung Meridian Heat Accumulation Syndrome score),objective disease indices(Lund-Kennedy score,T&T olfactory score,MTT,MTR),inflammatory indices(LTC4,IL-17a,IL-33,ECP),immune indices(CD4+,CD8+,Treg,Th17,CD4+/CD8+,Th17/Treg)and safety indices were detected.RESULTS The observation group demonstrated higher total control rate than the control group(P<0.05).After the treatment and at 3-month follow-up,the two groups displayed decreased clinical symptom scores,inflammatory indices,CD8+,Th17,Th17/Treg,SNOT-20 score,Lung Meridian Heat Accumulation Syndrome score,Lund-Kennedy score,T&T olfactory score(P<0.05),increased CD4+,Treg,CD4+/CD8+,MTR(P<0.05),and shortened MTT(P<0.05),especially for the observation group(P<0.05).No obvious adverse reactions were observable in the two groups.CONCLUSION For the patients with refractory rhinosinusitis,the comprehensive treatment regimen of traditional Chinese medicine can safely and effectively improve inflammatory responses,immune functions and mucociliary motor functions,repair the status and functions of nasal mucosa,alleviate subjective and objective symptoms,and enhance life quality.
5.Ameliorative effects of Zigui Yichong Formula on mitochondrial energy metabolism of ovarian granulosa cells via regulation of SIRT1/PGC-1α signaling pathway
Xue-ping LIU ; Si-ling TANG ; Zi SU ; Rong-xia LI ; Hong-yan XI ; Xin-miao ZHANG ; Zhong-yu WU ; Yan-cang DUAN
Chinese Traditional Patent Medicine 2024;46(10):3271-3277
AIM To explore the ameliorative effects of Zigui Yichong Formula on mitochondrial energy metabolism in in vitro model of premature ovarian insufficiency (POI).METHODS A POI model in vitro was established in human ovarian granulosa cell KGN with acrolein ( ACR ) for the further intervention of serum containing Zigui Yichong Formula.The control group,the ACR group,the Zigui Yichong Formula group,the EX527 ( SIRT1 inhibitor) group and the EX527+Zigui Yichong Formula group were set up.The cells had their apoptosis rate detected by flow cytometry;their ROS level detected by DCFH-DA method;their mitochondria number detected by Mito-Trakine fluorescence labeling method;their oxidative phosphorylation level of mitochondria detected by Seahorse method;their ATP level detected by colorimetry;their copy number of mtDNA and mRNA expressions of SIRT1,PGC-1α,Nrf1 and TFAM detected by RT-qPCR;and their protein expressions of SIRT1,PGC-1α,Ac-PGC-1α,Nrf1 and TFAM detected by Western blot.RESULTS Compared with the control group,the ACR group displayed increased apoptosis rate and ROS level of KGN cells ( P<0.05,P<0.01 );decreased number of mitochondria and mtDNA copy number ( P<0.01 );decreased basic value of mitochondrial aerobic respiration,maximum respiration,reserve value and ATP level (P<0.05,P<0.01),decreased mRNA and protein expressions of SIRT1,PGC-1α,Nrf1 and TFAM ( P<0.05,P<0.01 );and increased protein expression of Ac-PGC-1α( P<0.01 ).Compared with the ACR group,the Zigui Yichong Formula group demonstrated improvement in terms of the aforementioned indices levels ( P<0.05,P<0.01).The combination use of Zigui Yichong Formula and EX527 reversed the effects of single use of Zigui Yichong Formula on KGN cells ( P<0.05,P<0.01).CONCLUSION Zigui Yichong Formula may improve the mitochondrial energy metabolism disorder induced by ACR in KGN cells by increasing mitochondrial biosynthesis via SIRT1/PGC-1α signaling pathway.
6.Ameliorative effects of Zigui Yichong Formula on mitochondrial energy metabolism of ovarian granulosa cells via regulation of SIRT1/PGC-1α signaling pathway
Xue-ping LIU ; Si-ling TANG ; Zi SU ; Rong-xia LI ; Hong-yan XI ; Xin-miao ZHANG ; Zhong-yu WU ; Yan-cang DUAN
Chinese Traditional Patent Medicine 2024;46(10):3271-3277
AIM To explore the ameliorative effects of Zigui Yichong Formula on mitochondrial energy metabolism in in vitro model of premature ovarian insufficiency (POI).METHODS A POI model in vitro was established in human ovarian granulosa cell KGN with acrolein ( ACR ) for the further intervention of serum containing Zigui Yichong Formula.The control group,the ACR group,the Zigui Yichong Formula group,the EX527 ( SIRT1 inhibitor) group and the EX527+Zigui Yichong Formula group were set up.The cells had their apoptosis rate detected by flow cytometry;their ROS level detected by DCFH-DA method;their mitochondria number detected by Mito-Trakine fluorescence labeling method;their oxidative phosphorylation level of mitochondria detected by Seahorse method;their ATP level detected by colorimetry;their copy number of mtDNA and mRNA expressions of SIRT1,PGC-1α,Nrf1 and TFAM detected by RT-qPCR;and their protein expressions of SIRT1,PGC-1α,Ac-PGC-1α,Nrf1 and TFAM detected by Western blot.RESULTS Compared with the control group,the ACR group displayed increased apoptosis rate and ROS level of KGN cells ( P<0.05,P<0.01 );decreased number of mitochondria and mtDNA copy number ( P<0.01 );decreased basic value of mitochondrial aerobic respiration,maximum respiration,reserve value and ATP level (P<0.05,P<0.01),decreased mRNA and protein expressions of SIRT1,PGC-1α,Nrf1 and TFAM ( P<0.05,P<0.01 );and increased protein expression of Ac-PGC-1α( P<0.01 ).Compared with the ACR group,the Zigui Yichong Formula group demonstrated improvement in terms of the aforementioned indices levels ( P<0.05,P<0.01).The combination use of Zigui Yichong Formula and EX527 reversed the effects of single use of Zigui Yichong Formula on KGN cells ( P<0.05,P<0.01).CONCLUSION Zigui Yichong Formula may improve the mitochondrial energy metabolism disorder induced by ACR in KGN cells by increasing mitochondrial biosynthesis via SIRT1/PGC-1α signaling pathway.
7.Recommendations for prescription review of commonly used anti-seizure medications in treatment of children with epilepsy
Qianqian QIN ; Qian DING ; Xiaoling LIU ; Heping CAI ; Zebin CHEN ; Lina HAO ; Liang HUANG ; Yuntao JIA ; Lingyan JIAN ; Zhong LI ; Hua LIANG ; Maochang LIU ; Qinghong LU ; Xiaolan MO ; Jing MIAO ; Yanli REN ; Huajun SUN ; Yanyan SUN ; Jing XU ; Meixing YAN ; Li YANG ; Shengnan ZHANG ; Shunguo ZHANG ; Xin ZHAO ; Jie DENG ; Fang FANG ; Li GAO ; Hong HAN ; Shaoping HUANG ; Li JIANG ; Baomin LI ; Jianmin LIANG ; Jianxiang LIAO ; Zhisheng LIU ; Rong LUO ; Jing PENG ; Dan SUN ; Hua WANG ; Ye WU ; Jian YANG ; Yuqin ZHANG ; Jianmin ZHONG ; Shuizhen ZHOU ; Liping ZOU ; Yuwu JIANG ; Xiaoling WANG
Chinese Journal of Applied Clinical Pediatrics 2023;38(10):740-748
Anti-seizure medications (ASMs) are the main therapy for epilepsy.There are many kinds of ASMs with complex mechanism of action, so it is difficult for pharmacists to examine prescriptions.This paper put forward some suggestions on the indications, dosage forms/routes of administration, appropriateness of usage and dosage, combined medication and drug interaction, long-term prescription review, individual differences in pathophysiology of children, and drug selection when complicated with common epilepsy, for the reference of doctors and pharmacists.
8.Treatment of patent ductus arteriosus in very preterm infants in China.
Ai Min QIAN ; Rui CHENG ; Xin Yue GU ; Rong YIN ; Rui Miao BAI ; Juan DU ; Meng Ya SUN ; Ping CHENG ; K L E E shoo K LEE ; Li Zhong DU ; Yun CAO ; Wen Hao ZHOU ; You Yan ZHAO ; Si Yan JIANG
Chinese Journal of Pediatrics 2023;61(10):896-901
Objective: To describe the current status and trends in the treatment of patent ductus arteriosus (PDA) among very preterm infants (VPI) admitted to the neonatal intensive care units (NICU) of the Chinese Neonatal Network (CHNN) from 2019 to 2021, and to compare the differences in PDA treatment among these units. Methods: This was a cross-sectional study based on the CHNN VPI cohort, all of 22 525 VPI (gestational age<32 weeks) admitted to 79 tertiary NICU within 3 days of age from 2019 to 2021 were included. The overall PDA treatment rates were calculated, as well as the rates of infants with different gestational ages (≤26, 27-28, 29-31 weeks), and pharmacological and surgical treatments were described. PDA was defined as those diagnosed by echocardiography during hospitalization. The PDA treatment rate was defined as the number of VPI who had received medication treatment and (or) surgical ligation of PDA divided by the number of all VPI. Logistic regression was used to investigate the changes in PDA treatment rates over the 3 years and the differences between gestational age groups. A multivariate Logistic regression model was constructed to compute the standardized ratio (SR) of PDA treatment across different units, to compare the rates after adjusting for population characteristics. Results: A total of 22 525 VPI were included in the study, with a gestational age of 30.0 (28.6, 31.0) weeks and birth weight of 1 310 (1 100, 1 540) g; 56.0% (12 615) of them were male. PDA was diagnosed by echocardiography in 49.7% (11 186/22 525) of all VPI, and the overall PDA treatment rate was 16.8% (3 795/22 525). Of 3 762 VPI who received medication treatment, the main first-line medication used was ibuprofen (93.4% (3 515/3 762)) and the postnatal day of first medication treatment was 6 (4, 10) days of age; 59.3% (2 231/3 762) of the VPI had been weaned from invasive respiratory support during the first medication treatment, and 82.2% (3 092/3 762) of the infants received only one course of medication treatment. A total of 143 VPI underwent surgery, which was conducted on 32 (22, 46) days of age. Over the 3 years from 2019 to 2021, there was no significant change in the PDA treatment rate in these VPI (P=0.650). The PDA treatment rate decreased with increasing gestational age (P<0.001). The PDA treatment rates for VPI with gestational age ≤26, 27-28, and 29-31 weeks were 39.6% (688/1 737), 25.9% (1 319/5 098), and 11.4% (1 788/15 690), respectively. There were 61 units having a total number of VPI≥100 cases, and their rates of PDA treatment were 0 (0/116)-47.4% (376/793). After adjusting for population characteristics, the range of standardized ratios for PDA treatment in the 61 units was 0 (95%CI 0-0.3) to 3.4 (95%CI 3.1-3.8). Conclusions: From 2019 to 2021, compared to the peers in developed countries, VPI in CHNN NICU had a different PDA treatment rate; specifically, the VPI with small birth gestational age had a lower treatment rate, while the VPI with large birth gestational age had a higher rate. There are significant differences in PDA treatment rates among different units.
Infant
;
Infant, Newborn
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Male
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Humans
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Female
;
Ductus Arteriosus, Patent/drug therapy*
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Infant, Premature
;
Cross-Sectional Studies
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Ibuprofen/therapeutic use*
;
Infant, Very Low Birth Weight
;
Persistent Fetal Circulation Syndrome
;
Infant, Premature, Diseases/therapy*
9.Bis (2-butoxyethyl) Phthalate Delays Puberty Onset by Increasing Oxidative Stress and Apoptosis in Leydig Cells in Rats.
Miao Qing LIU ; Hai Qiong CHEN ; Hai Peng DAI ; Jing Jing LI ; Fu Hong TIAN ; Yi Yan WANG ; Cong De CHEN ; Xiao Heng LI ; Jun Wei LI ; Zhong Rong LI ; Ren Shan GE
Biomedical and Environmental Sciences 2023;36(1):60-75
OBJECTIVE:
This study investigated the effects of bis (2-butoxyethyl) phthalate (BBOP) on the onset of male puberty by affecting Leydig cell development in rats.
METHODS:
Thirty 35-day-old male Sprague-Dawley rats were randomly allocated to five groups mg/kg bw per day that were gavaged for 21 days with BBOP at 0, 10, 100, 250, or 500 mg/kg bw per day. The hormone profiles; Leydig cell morphological metrics; mRNA and protein levels; oxidative stress; and AKT, mTOR, ERK1/2, and GSK3β pathways were assessed.
RESULTS:
BBOP at 250 and/or 500 mg/kg bw per day decreased serum testosterone, luteinizing hormone, and follicle-stimulating hormone levels mg/kg bw per day (P < 0.05). BBOP at 500 mg/kg bw per day decreased Leydig cell number mg/kg bw per day and downregulated Cyp11a1, Insl3, Hsd11b1, and Dhh in the testes, and Lhb and Fshb mRNAs in the pituitary gland (P < 0.05). The malondialdehyde content in the testis significantly increased, while Sod1 and Sod2 mRNAs were markedly down-regulated, by BBOP treatment at 250-500 mg/kg bw per day (P < 0.05). Furthermore, BBOP at 500 mg/kg bw per day decreased AKT1/AKT2, mTOR, and ERK1/2 phosphorylation, and GSK3β and SIRT1 levels mg/kg bw per day (P < 0.05). Finally, BBOP at 100 or 500 μmol/L induced ROS and apoptosis in Leydig cells after 24 h of treatment in vitro (P < 0.05).
CONCLUSION:
BBOP delays puberty onset by increasing oxidative stress and apoptosis in Leydig cells in rats.
UNLABELLED
The graphical abstract is available on the website www.besjournal.com.
Rats
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Male
;
Animals
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Leydig Cells/metabolism*
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Testosterone
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Glycogen Synthase Kinase 3 beta/pharmacology*
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Rats, Sprague-Dawley
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Sexual Maturation
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Testis
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Oxidative Stress
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TOR Serine-Threonine Kinases/metabolism*
;
Apoptosis
10.Systematic analysis on expression quantitative trait loci identifies a novel regulatory variant in ring finger and WD repeat domain 3 associated with prognosis of pancreatic cancer
Ying ZHU ; Xiating PENG ; Xiaoyang WANG ; Pingting YING ; Haoxue WANG ; Bin LI ; Yue LI ; Ming ZHANG ; Yimin CAI ; Zequn LU ; Siyuan NIU ; Nan YANG ; Rong ZHONG ; Jianbo TIAN ; Jiang CHANG ; Xiaoping MIAO
Chinese Medical Journal 2022;135(11):1348-1357
Background::Pancreatic adenocarcinoma (PAAD) is an extremely lethal malignancy. Identification of the functional genes and genetic variants related to PAAD prognosis is important and challenging. Previously identified prognostic genes from several expression profile analyses were inconsistent. The regulatory genetic variants that affect PAAD prognosis were largely unknown.Methods::Firstly, a meta-analysis was performed with seven published datasets to systematically explore the candidate prognostic genes for PAAD. Next, to identify the regulatory variants for those candidate genes, expression quantitative trait loci analysis was implemented with PAAD data resources from The Cancer Genome Atlas. Then, a two-stage association study in a total of 893 PAAD patients was conducted to interrogate the regulatory variants and find the prognostic locus. Finally, a series of biochemical experiments and phenotype assays were carried out to demonstrate the biological function of variation and genes in PAAD progression process.Results::A total of 128 genes were identified associated with the PAAD prognosis in the meta-analysis. Fourteen regulatory loci in 12 of the 128 genes were discovered, among which, only rs4887783, the functional variant in the promoter of Ring Finger and WD Repeat Domain 3 ( RFWD3), presented significant association with PAAD prognosis in both stages of the population study. Dual-luciferase reporter and electrophoretic mobility shift assays demonstrated that rs4887783-G allele, which predicts the worse prognosis, enhanced the binding of transcript factor REST, thus elevating RFWD3 expression. Further phenotypic assays revealed that excess expression of RFWD3 promoted tumor cell migration without affecting their proliferation rate. RFWD3 was highly expressed in PAAD and might orchestrate the genes in the DNA repair process. Conclusions::RFWD3 and its regulatory variant are novel genetic factors for PAAD prognosis.

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