1.Efficacy and safety of Babaodan Capsule in patients with chronic hepatitis B virus infection comorbid with gallbladder polyps
Qianqian NIU ; Huan CHEN ; Ying ZHENG ; Chunyan GOU ; Chen XU ; Li LI ; Xinxin WANG ; Jianping LIU ; Zhaolan LIU ; Xiuhui LI
Journal of Clinical Hepatology 2026;42(2):304-311
ObjectiveTo investigate the efficacy and safety of Babaodan Capsule (BBD) in the treatment of patients with chronic hepatitis B virus (HBV) infection with damp-heat in the liver and gallbladder comorbid with gallbladder polyps. MethodsA randomized, double-blinded, placebo-controlled single-center trial was conducted among 120 patients with chronic HBV infection who were admitted to Beijing YouAn Hospital, Capital Medical University, from August 2020 to April 2023, and they were divided into treatment group (BBD) and control group (placebo), with 60 patients in each group. The course of treatment was 24 weeks, and follow-up assessments were conducted every 4 weeks. The primary outcome measures were the number and maximum diameter of gallbladder polyps (assessed by ultrasound), and the secondary outcome measures included traditional Chinese medicine (TCM) syndrome score, blood lipid levels, and liver function parameters. The independent-samples t test or the Wilcoxon rank-sum test was used for comparison of continuous data between two groups, and the chi-square test or the Fisher’s exact test was used for comparison of categorical data between two groups; the Wilcoxon rank-sum test was used for comparison of ranked data between two groups; the generalized estimating equation was used to analyze repeated measures data. ResultsAfter 8 weeks of treatment, the treatment group had a significantly smaller diameter of polyps and a significantly lower number of polyps than the control group (Z=-1.76 and -1.80, both P<0.05), and after 24 weeks of treatment, the treatment group had a significantly higher polyp reduction rate than the control group (30.51% vs 10.91%, P<0.05). The subgroup analysis showed that patients receiving combined antiviral therapy, male patients, patients with a diameter of polyps of <5 mm, and patients with multiple polyps tended to achieve significantly greater benefits. At week 8 of treatment, the treatment group had a significantly better TCM syndrome score than the control group (Z=-2.35, P<0.05); after treatment, compared with the control group, the treatment group had a significantly greater increase in high-density lipoprotein (Z=-1.85, P<0.05) and significantly lower levels of alanine aminotransferase (Z=-2.06, P <0.05), aspartate aminotransferase (Z=-2.13, P<0.05), total bilirubin (Z=-2.12, P<0.05), and direct bilirubin (Z=-3.09, P<0.05). No serious adverse events were reported in either group. ConclusionBBD can effectively reduce the size of gallbladder polyps, improve TCM syndrome score, and reduce the level of bilirubin in patients with chronic HBV infection with damp-heat in the liver and gallbladder, with a favorable safety profile, and it may be more suitable for patients receiving combined antiviral therapy and specific subgroups (male patients, patients with a diameter of polyps of <5 mm, and patients with multiple polyps.
2.Changes of Macrophages and Hemophagocytes in Bone Marrow of Patients with Multiple Myeloma before and after Chemotherapy and Their Correlation with Clinical Prognostic Value
Ting WANG ; Bingyun ZHANG ; Xiuhui CHEN ; Hongyue XU ; Mingli SUN ; Yingchao LIU ; Xueyong ZHANG
Journal of Modern Laboratory Medicine 2025;40(3):150-157,163
Objective To investigate the changes of macrophages and hemophagocytes in bone marrow smears of patients with multiple myeloma(MM)before and after chemotherapy and their correlation with clinical prognostic value.Methods A total of 300 MM patients treated in Liaocheng Second People's Hospital Affiliated to Shandong First Medical University from June 2018 to June 2023 were selected as the study objects.All patients received at least 3 courses of chemotherapy and were divided into the remission group(n=214)and the non-remission group(n=86)according to the clinical effect.Immunoglobulin(Ig)A,IgG,CD3+,CD4+,CD8+,interleukin(IL-2),IL-4,IL-6,IL-17,tumor necrosis factor(TNF)-α,transforming growth factor(TGF)-β,macrophages and hemophagocytes were detected in the two groups and compared between the two groups.COX regression was used to analyze the relationship between immunological indexes and non-remission of chemotherapy.The relationship between macrophages and hemophagocytes and non-remission of chemotherapy was analyzed by restricted cubic spline.The multiplicative interaction of macrophages and hemophagocytes on non-remission of chemotherapy was analyzed using an unconditioned Logistic regression model,and the additive interaction was analyzed using the interaction calculation table.Receiver operating characteristic(ROC)curve analysis of macrophages and hemophagocytes alone or in combination to determine the value of chemotherapy non-remission.Results The overall response rate(ORR)and non-response rate(NRR)of MM patients were 71.33%and 28.67%respectively.Compared with before treatment,IgA,IgG,CD8+,IL-6,IL-17,TNF-α,TGF-β,macrophages and hemophagocytes were significantly decreased in both groups after treatment(tslow=9.252~61.177,tnot slow=4.057~35.797).CD3+,CD4+,CD4+/CD8+,IL-2 and IL-4 were significantly increased(tslow=9.706~33.940,tnot slow=4.227~16.167),and the differences were statistically significant(all P<0.05).After treatment,compared with the remission group,IgA,IgG,CD8+,IL-6,IL-17,TNF-α,TGF-β,macrophages and hemophagocytes in the non-remission group were significantly higher than those in remission group(t=3.362~30.028),CD3+,CD4+,CD4+/CD8+,IL-2 and IL-4 were significantly lower than those in remission group(t=3.736~13.998).and the differences were statistically significant(all P<0.05).After adjusting the influence of other factors by COX regression,the trend test of macrophages and hemophagocytes was still statistically significant the trend test of macrophages and hemophagocytes was still statistically significant(P<0.05).Patients with≥5 macrophages/tablet and≥3 hemophagocytes/tablet had a significantly increased risk of non-remission from chemotherapy(P<0.05).There were additive(OR=6.157,95%CI:3.768~12.978)and multiplicative(OR=5.648,95%CI:1.035~17.492)interactions between macrophages and hemophagocytes in the non-remission of chemotherapy.Compared with the single judgment of macrophages and hemophagocytes,the combination of the two has the highest accuracy in determining chemotherapy non-remission(P<0.05).Conclusion Macrophages and hemophagocytic cells in MM patients after chemotherapy are significantly lower than those before chemotherapy,with≥5 macrophages/tablet and≥3 hemocyte phages/tablet,indicating that the risk of non-remission in patients with chemotherapy increased significantly,and the combination of the two can accurately judge the clinical efficacy.
3.Changes of Macrophages and Hemophagocytes in Bone Marrow of Patients with Multiple Myeloma before and after Chemotherapy and Their Correlation with Clinical Prognostic Value
Ting WANG ; Bingyun ZHANG ; Xiuhui CHEN ; Hongyue XU ; Mingli SUN ; Yingchao LIU ; Xueyong ZHANG
Journal of Modern Laboratory Medicine 2025;40(3):150-157,163
Objective To investigate the changes of macrophages and hemophagocytes in bone marrow smears of patients with multiple myeloma(MM)before and after chemotherapy and their correlation with clinical prognostic value.Methods A total of 300 MM patients treated in Liaocheng Second People's Hospital Affiliated to Shandong First Medical University from June 2018 to June 2023 were selected as the study objects.All patients received at least 3 courses of chemotherapy and were divided into the remission group(n=214)and the non-remission group(n=86)according to the clinical effect.Immunoglobulin(Ig)A,IgG,CD3+,CD4+,CD8+,interleukin(IL-2),IL-4,IL-6,IL-17,tumor necrosis factor(TNF)-α,transforming growth factor(TGF)-β,macrophages and hemophagocytes were detected in the two groups and compared between the two groups.COX regression was used to analyze the relationship between immunological indexes and non-remission of chemotherapy.The relationship between macrophages and hemophagocytes and non-remission of chemotherapy was analyzed by restricted cubic spline.The multiplicative interaction of macrophages and hemophagocytes on non-remission of chemotherapy was analyzed using an unconditioned Logistic regression model,and the additive interaction was analyzed using the interaction calculation table.Receiver operating characteristic(ROC)curve analysis of macrophages and hemophagocytes alone or in combination to determine the value of chemotherapy non-remission.Results The overall response rate(ORR)and non-response rate(NRR)of MM patients were 71.33%and 28.67%respectively.Compared with before treatment,IgA,IgG,CD8+,IL-6,IL-17,TNF-α,TGF-β,macrophages and hemophagocytes were significantly decreased in both groups after treatment(tslow=9.252~61.177,tnot slow=4.057~35.797).CD3+,CD4+,CD4+/CD8+,IL-2 and IL-4 were significantly increased(tslow=9.706~33.940,tnot slow=4.227~16.167),and the differences were statistically significant(all P<0.05).After treatment,compared with the remission group,IgA,IgG,CD8+,IL-6,IL-17,TNF-α,TGF-β,macrophages and hemophagocytes in the non-remission group were significantly higher than those in remission group(t=3.362~30.028),CD3+,CD4+,CD4+/CD8+,IL-2 and IL-4 were significantly lower than those in remission group(t=3.736~13.998).and the differences were statistically significant(all P<0.05).After adjusting the influence of other factors by COX regression,the trend test of macrophages and hemophagocytes was still statistically significant the trend test of macrophages and hemophagocytes was still statistically significant(P<0.05).Patients with≥5 macrophages/tablet and≥3 hemophagocytes/tablet had a significantly increased risk of non-remission from chemotherapy(P<0.05).There were additive(OR=6.157,95%CI:3.768~12.978)and multiplicative(OR=5.648,95%CI:1.035~17.492)interactions between macrophages and hemophagocytes in the non-remission of chemotherapy.Compared with the single judgment of macrophages and hemophagocytes,the combination of the two has the highest accuracy in determining chemotherapy non-remission(P<0.05).Conclusion Macrophages and hemophagocytic cells in MM patients after chemotherapy are significantly lower than those before chemotherapy,with≥5 macrophages/tablet and≥3 hemocyte phages/tablet,indicating that the risk of non-remission in patients with chemotherapy increased significantly,and the combination of the two can accurately judge the clinical efficacy.
4.Wenxiao Powder Alleviates Depression by Promoting Neurogenesis via BDNF/TrkB/ERK/CREB Signaling Pathway
Duo ZHANG ; Xiuhui GUO ; Yucheng LI ; Yunli GAO ; Ming BAI ; Xiangli YAN ; Erping XU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(8):100-108
ObjectiveTo decipher the mechanism of Wenxiao powder in alleviating corticosterone-induced depression-like behaviors in mice. MethodMale ICR mice were randomized into normal, model, paroxetine (20 mg·kg-1), and low- and high-dose (3.27, 6.54 g·kg-1, respectively) Wenxiao powder groups. The mice in normal and model groups received equal volume of saline. Other groups except the normal group were injected with corticosterone subcutaneously 0.5 h after gavage to induce depression. Mice were tested for depression-like behaviors after drug administration. Enzyme-linked immunosorbent assay (ELISA) was performed to measure the corticosterone content in the serum. Nissl staining was performed to observe the damage of hippocampal neurons. Immunofluorescence staining was employed to observe the expression of double cortin (DCX) in the dentate gyrus (DG) of the hippocampus. Western blot was employed to determine the expression of proteins in the brain-derived neurotrophic factor (BDNF)/tyrosine kinase receptor B (TrkB)/extracellular signal-regulated kinase (ERK)/cAMP-response element-binding protein (CREB) pathway in the hippocampus. ResultCompared with the normal group, the model group showed decreased sucrose preference rate, increased immobility time in the tail suspension test (P<0.01), and reduced residence time in the central area of the open field and the total movement distance (P<0.05, P<0.01). In addition, the modeling elevated the corticosterone level in the serum (P<0.01), decreased the volume and intensified the nuclear staining of hippocampal neurons in the DG area, reduced the expression of DCX in the DG area, and down-regulated the protein levels of BDNF, phosphorylated (p)-TrkB, p-ERK, and p-CREB in the hippocampus (P<0.05, P<0.01). Compared with the model group, low-dose Wenxiao powder improved the mouse behavivors in the sucrose preference, open field, and tail suspension tests (P<0.05, P<0.01), and high-dose Wenxiao powder improved the behaviors in the sucrose preference and open field tests (P<0.05, P<0.01). In addition, Wenxiao powder lowered the serum corticosterone level (P<0.01) and recovered the structure and morphology of neurons with obvious nuclei and presence of Nissl bodies in the DG area of the hippocampus. Moreover, Wenxiao powder at both doses promoted the expression of DCX in the DG area, and high-dose Wenxiao powder up-regulated the protein levels of BDNF, p-TrkB, p-ERK, and p-CREB in the hippocampus (P<0.05, P<0.01). ConclusionWenxiao powder can alleviate corticosterone-induced depression-like behaviors and promote neurogenesis in mice possibly by activating the BDNF/TrkB/ERK/CREB signaling pathway.
5.Effects of blepharoplasty on the ocular surface and refractive status
Min KONG ; Xiaohui WANG ; Xiuhui HE ; Yuxin XU
International Eye Science 2024;24(9):1506-1509
AIM: To examine the effects of blepharoplasty on the ocular surface and refractive state.METHODS:Retrospective study. A total of 70 patients(108 eyes)who underwent blepharoplasty in our ophthalmology department from January 2022 to June 2023 were selected, among which 40 cases(48 eyes)diagnosed with ptosis received levator muscle shortness, and 30(60 eyes)diagnosed with eyelid laxity/single eyelids received blepharoplasty. The ocular surface disease index(OSDI), tear meniscus height(TMH), Schirmer Ⅰ test(SⅠt), tear film break-up time(BUT), corneal fluorescein staining(FL), cylindrical(Cyl), surface regularity index(SRI), surface asymmetry index(SAI), keratometry(Km), and cylindrical(C).RESULTS:There were statistical differences in preoperative and postoperative OSDI, BUT, SⅠt, and FL of patients who received levator resection(all P<0.05), but no differences were found in TMH(P>0.05). At 1 mo postoperatively, OSDI, BUT, SⅠt, and FL were significantly different compared to preoperative values(all P<0.05). There were no significant differences in OSDI, BUT, SⅠt, FL, or TMH of patients received blepharoplasty before and after surgery(all P>0.05). No significant differences were found in Cyl, SRI, SAI, Km, or C in either group before and after surgery(all P>0.05).CONCLUSION:The levator resection has an early impact on the ocular surface of patients with ptosis, and corneal protection measures should be taken early. There was no significant impact on patients undergoing blepharoplasty; there was no significant effect on the refractive status of all patients.
6.Simultaneous Determination of 3 Genotoxic Impurities in Pantoprazole Sodium by Chromatography-Mass Spectrometry
Xiuhui XU ; Lingfang CHEN ; Mingbo LOU
Chinese Journal of Modern Applied Pharmacy 2024;41(10):1381-1387
OBJECTIVE
To establish a chromatography-mass spectrometry method for simultanenous detection of 3 genotoxic impurities in pantoprazole sodium.
METHODS
The chromatographic column was octadecylsilane bonded silica gel as filler (Kromasil 100-5, 4.6 mm×25 cm, 5 μm or equivalent column), acetonitrile-0.01 mol·L−1 ammonium acetate(35∶65) as mobile phase, flow rate 0.9 mL·min−1, column temperature 25 ℃; positiveion detection mode, scanning range: 150−450 Da, dryer temperature 350 ℃, dry gas flow rate 10 L·min−1, atomization gas pressure 50 psig, capillary voltage 4 000 V, fragmentation voltage 175 V, cone hole voltage 65 V. The time for entering the mass spectrometry was set to 0−3.5 minutes to waste, 3.5 minutes to retain the main peak-0.5 minutes to MS, and 0.5 minutes to end to waste.
RESULTS
The concentration of genotoxic impurity 1 had a good linear relationship with peak area between 9.04−27.13 ng·mL−1(r=0.998), the concentration of genotoxic impurity 2 had a good linear relationship with peak area between 8.92−26.75 ng·mL−1(r=0.999), and the concentration of intermediate II had a good linear relationship with peak area between 7.78−23.34 ng·mL−1(r=0.990); the quantitative limit of genotoxic impurity 1 was 9.0430 ng·mL−1, and the detection limit was 0.9043 ng·mL−1; the quantitative limit of genotoxic impurity 2 was 8.9174 ng·mL−1, and the detection limit was 2.9725 ng·mL−1; the quantitative limit of intermediate II was 7.7792 ng·mL−1, and the detection limit was 0.7779 ng·mL−1; the recovery rate of 3 genotoxic impurities ranges from 92.3%−107.0%, with an RSD of 2.0%−7.9%. No three impurities were detected in pantoprazole sodium.
CONCLUSION
This method can accurately and quantitatively determine three genotoxic impurities of pantoprazole sodium raw material: genotoxic impurity 1, genotoxic impurity 2, and intermediate II. The method has strong specificity, high sensitivity, simple and rapid experimental operation, and can be used for the determination of the above three genotoxic impurities in pantoprazole sodium.
7.Effect of intratracheal instillation of PM2.5 suspensionon pulmonary fibrosis in mice and the intervention of neotuberostemonine
Xiuhui QIAN ; Jing SUN ; San FU ; Xiaoyan TANG ; Xianghong XU ; Mian ZHANG
Journal of China Pharmaceutical University 2021;52(4):455-462
To investigate the effects of intratracheal instillation of PM2.5 suspension on bleomycin (BLM)-induced pulmonary fibrosis in mice and the intervention of neotuberostemonine (NTS), the BLM dose (1.5 or 3.0 U/kg) and PM2.5 frequency (1 or 2 times per week) were studied by factorial experiment design. After intratracheal instillation of BLM (1.5 or 3.0 U/kg) on day 0, PM2.5 (5 mg/kg) was intratracheally injected to mice once or twice a week from day 1 to day 21, and the mice in the treatment group were given 30 mg/kg NTS by gavage once a day from day 8 to day 21. The degree of pulmonary fibrosis was evaluated by lung coefficient, hydroxyproline (HYP) content, HE staining and Masson staining lung sections as well as their semi-quantitative index (HE inflammatory score and collagen volume fraction, CVF). The results showed that the HE scores increased significantly in mice singly given PM2.5 once a week, the HYP content and HE score increased in mice singly given PM2.5 twice a week, but their CVF values did not significantly increase. However, the CVF values increased significantly in mice treated with PM2.5 and BLM co-infusion. These results suggested that PM2.5 (administered singly) could significantly increase BLM-induced collagen deposition and greatly aggravate pulmonary fibrosis although it mainly caused pulmonary inflammation rather than pulmonary fibrosis. NTS could significantly reduce the CVF value and α-SMA protein level of the model mice. It can be concluded that PM2.5 has great influence on patients with respiratory diseases, while NTS can improve pulmonary fibrosis induced by the combination of PM2.5 and BLM.
8.Bundles of care prevents postoperative delirium in elderly patients with hip fractures
Fengbin YU ; Xiuhui WANG ; Weiqun LIU ; Peifeng TANG ; Xiaoxiao ZHOU ; Jiajun WU ; Zhengfeng XU ; Suyan LI ; Rong LU ; Hongliang WANG
Chinese Journal of Trauma 2018;34(7):643-647
Objective To evaluate the effect of bundles of care on the prevention of postoperative delirium among elderly patients with hip fractures.Methods A prospective randomized case control study was conducted on 80 patients (≥65 years old) with hip fractures from March 2017 to June 2017.The patients were divided into experimental group (n =43) and control group (n =37) according to the random number table method.The experimental group received bundles of care,while the control group received routine nursing.The patients in both groups were all surgically treated,and the confusion assessment method (CAM) was applied to diagnose delirium after surgery.Gender,age,fracture type,duration from injury to operation,internal fixation type,operation time,total amount of bleeding,visual analogue scale (VAS),incidence of delirium,complications,and adverse events were compared between the two groups.Results Among the 80 patients,there were 11 males and 69 females,aged averagely 79.3 years (range,65-95 years).No significant differences were found between experiment group and control group in terms of gender (male:6 cases vs.5 cases,females:37 cases vs.32 cases),age [(79.8 ± 7.8) years vs.(78.7 ± 8.9) years],cause of injury (traffic injuries:7 cases vs.4 cases;falling injuries:36 cases vs.33 cases),duration from injury to operation [(66.1 ±14.3)hours vs.(63.4 ±14.9) hours],fracture type (femoral neck:13 cases vs.10 cases;intertrochanteric:26 cases vs.24 cases;subtrochanteric:4 cases vs.3 cases),internal fixation type (artificial total hip:5 cases vs.5 cases;artificial femoral head:8 cases vs.5 cases;PFNA:29 cases vs.27 cases),operation time [(55.5 ± 16.8) minutes vs.(51.6 ± 17.0) minutes],total blood loss [(114.4 ± 73.9) ml vs.(108.1 ±72.0) ml] (P > 0.05).After bundles of care intervention,the postoperative VAS [(2.2 ± 0.8) points vs.(4.3 ± 1.2) points],postoperative delirium incidence (9% vs.32%),incidence of complications and adverse events (2% vs.19%) in experimental group were significantly lower than those in control group (P < 0.05).Conclusion Bundles of care can relieve the pain and effectively reduce the incidences of postoperative delirium,complications,and adverse events in elderly patients with hip fracture.
9.Study on serum S100A12 level in patients with obstructive sleep apnea hypopnea syndrome
Peng ZHANG ; Xiuhui CHENG ; Hua ZHANG ; Songyun OUYANG ; Wenlong LI ; Linqing GUO ; Chao XU ; Yuna ZU ; Yongxin WU
Chongqing Medicine 2017;46(34):4780-4782
Objective To investigate the correlation and significance of S100A12 with obstructive sleep apnea hypopnea syndrome (OSAHS).Methods Fifty-three patients with OSAHS were chosen as OSAHS group and 46 healthy volunteers were chosen as control group.The levels of S100A12 and hs-CRP in the two groups were compared,and its relationship with those of epworth (ESS),apnea hypopnea index (AHI),and minimum blood oxygen saturation (L-SpO2) were analysised.Results The scores of ESS,BMI,A HI,L-SpO2,hs-CRP and S100A12 in two groups were statistically significant (P<0.05).The severity of hs-CRP in severe OSAHS group was significantly higher than that of mild OSAHS group (P<0.05).There was no significant difference in hs-CRP between moderate OSAHS group and mild OSAHS group and severe group (P>0.05).The level of S100A12 in severe OSAHS group was significantly higher than that of moderate OSAHS group and OSAHS mild group(P<0.05).The level of S100A12 in moderate moderate group was significantly higher than that of mild group(P<0.01).hs-CRP was negatively correlated with ESS and AHI (r=0.822,0.787,P<0.01),was positively correlated with L-SpO2 (r=-0.740,P<0.01),S100A12 was positively correlated with ESS and AHI (r =0.707,P < 0.01),and negatively correlated with ESS and AHI (r =0.707,0.807,P<0.01),and negatively correlated with with L-SpO2 (r=-0.670,P<0.01).Conclusion S100A12 is associated with OSAHS.The higher the severity of OSAHS,the higher the S100A12 value,which can be used as a new predictor of cardiovascular disease risk in OSAHS patients.
10.Effects of coal-burning type of fluorosis on hypothalamic-pituitary-ovary axis function in female rats
Xiuhui CHEN ; Shuhua XIA ; Siwen YU ; Jingfeng XU ; Maojuan YU ; Cheng WANG
Chinese Journal of Endemiology 2015;34(2):93-97
Objective To observe the influence of coal-burning type of fluorosis on hypothalamic-pituitaryovary axis function and to explore possible mechanism in female rats.Methods Sixty SD rats were divided into two groups according to body weight with the method of random number table:control group and fluorosis group,30 rats in each group.Fluorosis group was feed with corn powder baked by high fluorine coal from Zhijin area.Changes of female rats' teeth during fluorine exposure were observed.After feeding for 180 days,24 h urine was collected in estrus and fluorine level was tested using fluoride ion-selective electrode; rats were executed and bone fluorine level was tested with high-temperature ashing-fluorine ion-selective electrode.Femoral artery blood was collected and serum was separated to test the contents of follicle stimulating hormone (FSH),luteinizing hormone (LH),testosterone (T),estradiol (E2) and progesterone (P) with electrochemiluminescence radioimmunoassay and gonadotropin-releasing hormone (GnRH),inhibin (INH) with enzyme-linked immunosorbent assay (ELISA),respectively.Organs,including hypothalamus,pituitary gland and ovary were weighted,and organ coefficients were calculated.Pathological morphology of hypothalamus,pituitary gland and ovary was observed after staining and ultrastructure of ovary was examined by electron microscopy.Results Coal-burning induced fluorine poisoning rat model was established successfully.There were no significant differences statistically in organ coefficients between fluorosis groups (0.032 ± 0.004,0.014 ± 0.008,0.037 ± 0.009) and controls (0.035 ± 0.005,0.012 ± 0.006,0.035 ± 0.004,t =0.46,0.87,0.64,all P > 0.05).Rats serum GnRH,FSH,LH and T levels [(21.654 ± 4.765),(29.580 ± 5.221),(53.988 ± 6.506),(23.962 ± 2.255)μg/L] of fluorosis groups were all higher than those of controls [(10.384 ±2.250),(19.217 ± 4.743),(30.314 ± 4.443),(7.883 ± 1.973)μg/L,t =6.762,4.646,9.503,16.971,all P < 0.05].But the level of P,INH [(12.635 ± 3.841),(18.926 ± 3.465)μg/L] were all lower than those of controls [(21.045 ±4.768),(48.076 ± 3.525)μg/L,t =4.344,18.649,all P < 0.05].Serum E2 levels of control group and fluorosis group were (35.375 ± 10.662) and (27.500 ± 12.783)μg/L,respectively.The difference between groups was not statistically significant (t =1.821,P > 0.05).No pathological changes were observed in the two groups of female hypothalamus,pituitary tissue by light microscopy and electron microscopy.Under light microscope,in the control group of normal ovarian tissue,more corpus luteum and different developmental stages of follicles were seen,granulosa cells were neatly arranged in a monolayer or multilayer.In fluorosis group,severe edema of ovarian interstitial cells and follicle degeneration increased.Cell structure and cell contours were blurred and unclear with occasional mature follicles.Under transmission electron microscope,in control group,normal ovarian granulosa cell ultrastructure was observed,nuclei were round,nuclear chromatin was uniform distributed,cytoplasm was rich in mitochondria and endoplasmic reticulum,and normal morphology.In fluorosis group,granulosa cells and interstitial cells showed apoptotic characters,such as nucleoli disappearing,mitochondrial swelling and chromatin aggregating at the nuclear membrane.Conclusions Fluorosis can induce ovarian tissue apoptosis,severely damage the micro environment.Reduction of P and INH affects ovarian,maturation and ovulation and leads to secretion of GnRH,FSH and LH.Fluorosis caused by coal-burning may induce the injury of ovary and cause abnormal secretion of hypothalamic-pituitary-ovary axis.Fluorosis has affected parts of female axis which may not be in the hypothalamus,pituitary,but causes ovarian tissue damage.


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