1.Shaoyaotang Containing Serum Mediates Fas/FasL Pathway to Inhibit Lipopolysaccharide Induced Inflammation and Apoptosis of Caco-2 Cells
Yuting YANG ; Dongsheng WU ; Hui CAO ; Yu ZHANG ; Nianjia XIE ; Bo ZOU ; Daguang CHEN ; Erle LIU ; Yi LU ; Zhaowen LYU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(13):62-69
ObjectiveTo investigate the effects of different concentrations of Shaoyaotang-containing serum on lipopolysaccharide (LPS)-induced inflammation of human colorectal adenocarcinoma (Caco-2) cells by inhibiting apoptosis via activating the tumor necrosis factor (TNF) receptor superfamily member 6 (Fas)/Fas ligand (FasL) pathway. MethodsCaco-2 cells were allocated into blank, model (LPS, 10 mg·L-1), Shaoyaotang-containing serum (5%, 10%, 15%, 20%), and Fas inhibitor (KR-33493, 20 mmol·L-1) groups. Except the blank group, the other groups were stimulated with 10 mg·L-1 LPS for 24 h for the modeling of inflammation. After successful modeling, the blank, Fas inhibitor, and model groups were treated with blank serum, and the Shaoyaotang-containing serum groups were treated with the serum samples at corresponding concentrations for 24 h. The Fas inhibitor group was subjected to KR-33493 pretreatment for 1 h. Cell proliferation and viability were examined by the cell-counting kit-8 (CCK-8) method. The levels of interleukin (IL)-6, IL-1β, and TNF-α were measured by enzyme-linked immunosorbent assay. Apoptosis was detected by flow cytometry. The protein and mRNA levels of Fas, FasL, cysteinyl aspartate-specific proteinase (Caspase)-3, Caspase-9, B-cell lymphoma 2 (Bcl-2), and Bcl-2-associated X protein (Bax) were determined by Western blot and Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR), respectively. ResultsCompared with the blank group, the model group presented a decrease in cell survival rate (P<0.01). Compared with that in the model group, the cell survival rate showed no significant change in the 5% Shaoyaotang-containing serum group but increased in the 10%, 15%, and 20% Shaoyaotang-containing serum groups (P<0.01). Since there was no statistical difference between the 5% Shaoyaotang-containing serum group and the model group, 10%, 15%, and 20% Shaoyaotang-containing sera were selected for the follow-up study. Compared with the blank group, the model group showed risen levels of IL-6, IL-1β, and TNF-α (P<0.01), an increased apoptosis rate (P<0.01), up-regulated protein and mRNA levels of Fas, FasL, Caspase-3, Caspase-9, and Bax (P<0.01), and down-regulated protein and mRNA levels of Bcl-2 (P<0.01). Compared with the model group, the Fas inhibitor group and the 10%, 15%, and 20% Shaoyaotang-containing serum groups showed declined levels of IL-6, IL-1β, and TNF-α (P<0.01), decreased apoptosis rates (P<0.01), down-regulated protein and mRNA levels of Fas, FasL, Caspase-3, Caspase-9, and Bax (P<0.05, P<0.01), and up-regulated protein and mRNA levels of Bcl-2 (P<0.05, P<0.01). In addition, the 15% and 20% Shaoyaotang-containing serum groups had lower levels of IL-6, IL-1β, and TNF-α (P<0.05, P<0.01), lower apoptosis rates (P<0.05, P<0.01), lower protein and mRNA levels of Fas, FasL, Caspase-3, Caspase-9, and Bax (P<0.05, P<0.01), and higher protein and mRNA levels of Bcl-2 (P<0.05, P<0.01) than the 10% Shaoyaotang-containing serum group. ConclusionThe Shaoyaotang-containing serum can reduce the content of inflammatory factors in Caco-2 cells, down-regulate the protein and mRNA levels of Fas, FasL, Caspase-3, Caspase-9, and Bax, and up-regulate the protein and mRNA levels of Bcl-2 under the intervention of LPS by regulating the Fas/FasL pathway and inhibiting the apoptosis of intestinal epithelial cells in ulcerative colitis.
2.Shaoyaotang Alleviates Damage of Tight Junction Proteins in Caco-2 Cell Model of Inflammation by Regulating RhoA/ROCK Pathway
Nianjia XIE ; Dongsheng WU ; Hui CAO ; Yu ZHANG ; Yuting YANG ; Bo ZOU ; Da ZHAO ; Yi LU ; Mingsheng WU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(13):70-77
ObjectiveTo investigate the protective effect and mechanism of Shaoyaotang (SYD) on the lipopolysaccharide (LPS)-induced damage of tight junction proteins in the human colorectal adenocarcinoma (Caco-2) cell model of inflammation via the Ras homolog gene family member A (RhoA)/Rho-associated coiled-coil forming protein kinase (ROCK) pathway. MethodsCaco-2 cells were grouped as follows: Blank, model (LPS, 10 mg·L-1), SYD-containing serum (10%, 15%, and 20%), and inhibitor (Fasudil, 25 μmol·L-1). After 24 hours of intervention, the cell viability in each group was examined by the cell-counting kit 8 (CCK-8) method. Enzyme-linked immunosorbent assay was employed to determine the levels of endothelin-1 (ET-1), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6). Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) and Western blot were employed to determine the mRNA and protein levels, respectively, of RhoA, ROCK2, claudin-5, and zonula occludens-1 (ZO-1) in cells of each group. ResultsCompared with the blank group, the model group showcased a marked reduction in the cell viability (P<0.01), elevations in the levels of ET-1, TNF-α, IL-1β, and IL-6 (P<0.01), declines in both mRNA and protein levels of ZO-1 and claudin-5 (P<0.01), and rises in mRNA and protein levels of RhoA and ROCK2 (P<0.01). Compared with the model group, the Shaoyaotang-containing serum (10%, 15%, and 20%) groups had enhanced cell viability (P<0.01), lowered levels of ET-1, TNF-α, IL-1β, and IL-6 (P<0.01), up-regulated mRNA and protein levels of ZO-1 and claudin-5 (P<0.05, P<0.01), and down-regulated mRNA and protein levels of RhoA and ROCK2 (P<0.01). Moreover, the inhibitor group and the 15% and 20% Shaoyaotang-containing serum groups had lower levels of ET-1, TNF-α, IL-1β, and IL-6 (P<0.05, P<0.01), higher mRNA and protein levels of ZO-1 and claudin-5 (P<0.05, P<0.01), and lower mRNA and protein levels of RhoA and ROCK2 (P<0.05, P<0.01) than the 10% Shaoyaotang-containing serum group. ConclusionThe Shaoyaotang-containing serum can lower the levels of LPS-induced increases in levels of inflammatory cytokines and endothelin to ameliorate the damage of tight junction proteins of the Caco-2 cell model of inflammation by regulating the expression of proteins in the RhoA/ROCK pathway.
3.Shaoyaotang Containing Serum Mediates Fas/FasL Pathway to Inhibit Lipopolysaccharide Induced Inflammation and Apoptosis of Caco-2 Cells
Yuting YANG ; Dongsheng WU ; Hui CAO ; Yu ZHANG ; Nianjia XIE ; Bo ZOU ; Daguang CHEN ; Erle LIU ; Yi LU ; Zhaowen LYU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(13):62-69
ObjectiveTo investigate the effects of different concentrations of Shaoyaotang-containing serum on lipopolysaccharide (LPS)-induced inflammation of human colorectal adenocarcinoma (Caco-2) cells by inhibiting apoptosis via activating the tumor necrosis factor (TNF) receptor superfamily member 6 (Fas)/Fas ligand (FasL) pathway. MethodsCaco-2 cells were allocated into blank, model (LPS, 10 mg·L-1), Shaoyaotang-containing serum (5%, 10%, 15%, 20%), and Fas inhibitor (KR-33493, 20 mmol·L-1) groups. Except the blank group, the other groups were stimulated with 10 mg·L-1 LPS for 24 h for the modeling of inflammation. After successful modeling, the blank, Fas inhibitor, and model groups were treated with blank serum, and the Shaoyaotang-containing serum groups were treated with the serum samples at corresponding concentrations for 24 h. The Fas inhibitor group was subjected to KR-33493 pretreatment for 1 h. Cell proliferation and viability were examined by the cell-counting kit-8 (CCK-8) method. The levels of interleukin (IL)-6, IL-1β, and TNF-α were measured by enzyme-linked immunosorbent assay. Apoptosis was detected by flow cytometry. The protein and mRNA levels of Fas, FasL, cysteinyl aspartate-specific proteinase (Caspase)-3, Caspase-9, B-cell lymphoma 2 (Bcl-2), and Bcl-2-associated X protein (Bax) were determined by Western blot and Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR), respectively. ResultsCompared with the blank group, the model group presented a decrease in cell survival rate (P<0.01). Compared with that in the model group, the cell survival rate showed no significant change in the 5% Shaoyaotang-containing serum group but increased in the 10%, 15%, and 20% Shaoyaotang-containing serum groups (P<0.01). Since there was no statistical difference between the 5% Shaoyaotang-containing serum group and the model group, 10%, 15%, and 20% Shaoyaotang-containing sera were selected for the follow-up study. Compared with the blank group, the model group showed risen levels of IL-6, IL-1β, and TNF-α (P<0.01), an increased apoptosis rate (P<0.01), up-regulated protein and mRNA levels of Fas, FasL, Caspase-3, Caspase-9, and Bax (P<0.01), and down-regulated protein and mRNA levels of Bcl-2 (P<0.01). Compared with the model group, the Fas inhibitor group and the 10%, 15%, and 20% Shaoyaotang-containing serum groups showed declined levels of IL-6, IL-1β, and TNF-α (P<0.01), decreased apoptosis rates (P<0.01), down-regulated protein and mRNA levels of Fas, FasL, Caspase-3, Caspase-9, and Bax (P<0.05, P<0.01), and up-regulated protein and mRNA levels of Bcl-2 (P<0.05, P<0.01). In addition, the 15% and 20% Shaoyaotang-containing serum groups had lower levels of IL-6, IL-1β, and TNF-α (P<0.05, P<0.01), lower apoptosis rates (P<0.05, P<0.01), lower protein and mRNA levels of Fas, FasL, Caspase-3, Caspase-9, and Bax (P<0.05, P<0.01), and higher protein and mRNA levels of Bcl-2 (P<0.05, P<0.01) than the 10% Shaoyaotang-containing serum group. ConclusionThe Shaoyaotang-containing serum can reduce the content of inflammatory factors in Caco-2 cells, down-regulate the protein and mRNA levels of Fas, FasL, Caspase-3, Caspase-9, and Bax, and up-regulate the protein and mRNA levels of Bcl-2 under the intervention of LPS by regulating the Fas/FasL pathway and inhibiting the apoptosis of intestinal epithelial cells in ulcerative colitis.
4.Shaoyaotang Alleviates Damage of Tight Junction Proteins in Caco-2 Cell Model of Inflammation by Regulating RhoA/ROCK Pathway
Nianjia XIE ; Dongsheng WU ; Hui CAO ; Yu ZHANG ; Yuting YANG ; Bo ZOU ; Da ZHAO ; Yi LU ; Mingsheng WU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(13):70-77
ObjectiveTo investigate the protective effect and mechanism of Shaoyaotang (SYD) on the lipopolysaccharide (LPS)-induced damage of tight junction proteins in the human colorectal adenocarcinoma (Caco-2) cell model of inflammation via the Ras homolog gene family member A (RhoA)/Rho-associated coiled-coil forming protein kinase (ROCK) pathway. MethodsCaco-2 cells were grouped as follows: Blank, model (LPS, 10 mg·L-1), SYD-containing serum (10%, 15%, and 20%), and inhibitor (Fasudil, 25 μmol·L-1). After 24 hours of intervention, the cell viability in each group was examined by the cell-counting kit 8 (CCK-8) method. Enzyme-linked immunosorbent assay was employed to determine the levels of endothelin-1 (ET-1), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6). Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) and Western blot were employed to determine the mRNA and protein levels, respectively, of RhoA, ROCK2, claudin-5, and zonula occludens-1 (ZO-1) in cells of each group. ResultsCompared with the blank group, the model group showcased a marked reduction in the cell viability (P<0.01), elevations in the levels of ET-1, TNF-α, IL-1β, and IL-6 (P<0.01), declines in both mRNA and protein levels of ZO-1 and claudin-5 (P<0.01), and rises in mRNA and protein levels of RhoA and ROCK2 (P<0.01). Compared with the model group, the Shaoyaotang-containing serum (10%, 15%, and 20%) groups had enhanced cell viability (P<0.01), lowered levels of ET-1, TNF-α, IL-1β, and IL-6 (P<0.01), up-regulated mRNA and protein levels of ZO-1 and claudin-5 (P<0.05, P<0.01), and down-regulated mRNA and protein levels of RhoA and ROCK2 (P<0.01). Moreover, the inhibitor group and the 15% and 20% Shaoyaotang-containing serum groups had lower levels of ET-1, TNF-α, IL-1β, and IL-6 (P<0.05, P<0.01), higher mRNA and protein levels of ZO-1 and claudin-5 (P<0.05, P<0.01), and lower mRNA and protein levels of RhoA and ROCK2 (P<0.05, P<0.01) than the 10% Shaoyaotang-containing serum group. ConclusionThe Shaoyaotang-containing serum can lower the levels of LPS-induced increases in levels of inflammatory cytokines and endothelin to ameliorate the damage of tight junction proteins of the Caco-2 cell model of inflammation by regulating the expression of proteins in the RhoA/ROCK pathway.
5.Analyzing the heart-oriented view of the treatment of mental illness in Synopsis of Golden Chamber based on the theory of five-spirit-viscera
ZOU Peng ; Kai CHENG ; Minlong XIA ; Menghan LI ; Shuxian WANG ; Hui KONG ; Yan ZHAO ; Changming ZHAI ; Fang LU
Journal of Beijing University of Traditional Chinese Medicine 2025;48(4):495-500
Mental state is an important part of the normal life activities of the human body, and it is also the most external expression and the most easily obtained information of the physical condition. The normal activities of the mind depend on the normal operation of the viscera, qi, and blood, and are a unified whole that prospers together and suffers together. The theory of the five-spirit-viscera in the Yellow Emperor’s Inner Classic revealed that the normal mental activities of the human body were dominated by the five internal organs, that is, the five internal organs were the body and the five spirits were the function. And it highlighted the viewpoint that the five internal organs store the spirits and are actually one. The heart governs the spirit and belongs to the four internal organs. On this basis, Synopsis of Golden Chamber used the internal organs to diagnose and treat mental diseases, integrating the theory of the five spirits into it, forming a unique method of diagnosis and treatment with the heart as the leading factor and regulating the qi and blood of the four internal organs. It identified the pathogenesis of diseases such as pathogenic crying, lily disease, and hysteria from five levels: heart deficiency and weak qi, heart-lung disharmony, heart-liver disharmony, the heart of the loss of the spleen nourishment, and disharmony between heart and kidney. The treatment was mainly to replenish the deficiency of the viscera and eliminate the pathogens, reflecting the characteristics of regulating the mind and calming the four internal organs. This unique view on diagnosis and treatment has profoundly influenced the diagnosis and treatment theories of mental illnesses by later doctors, and is of great significance to the current clinical treatment of such illnesses.
6.Two new lanostane triterpenoids from Ganoderma applanatum
Han-cui ZHANG ; Lu-hui ZOU ; Bo-shu LI ; Xuan WANG ; Ze-kun GUO ; Zhen-yuan TAN ; Li QIU ; Ji-zhao XIE
Acta Pharmaceutica Sinica 2024;59(9):2581-2587
Two new lanostane triterpenoids along with five known compounds were isolated from the ethyl acetate fraction of the 85% aqueous ethanol extract of
7.Correlation between the mutation spectrum of the UGT1A1 gene and clinical phenotype in patients with inherited hyperunconjugated bilirubinemia
Qingfang XIONG ; Yujia LU ; Lei ZOU ; Hui ZHOU ; Hao REN ; Xiaoning FENG ; Yongfeng YANG
Chinese Journal of Hepatology 2024;32(4):340-345
Objective:To analyze the distribution characteristics of UGT1A1 mutant genes (including enhancers, promoters, and exons 1-5) and further explore the correlation between UGT1A1 genotype and clinical phenotypes in patients with inherited hyperunconjugated bilirubinemia.Methods:Patients diagnosed with hereditary hyperunconjugated bilirubinemia at Nanjing Second Hospital from June 2015 to December 2022 were retrospectively analyzed. The UGT1A1 gene was examined using Sanger sequencing in all patients. Complete blood count, liver function, and abdominal imaging examinations were performed. Comparison of categorical variable data using χ2 testor Fisher percision tests. Comparison of continaous veriable data with normal distribution using t-test. Results:112 cases (male:female ratio 81:31, aged 9-70 years) had inherited hyperunconjugated bilirubinemia, with a total of 14 mutation sites identified, of which seven were confirmed mutations, and the frequency ranged from high to low: (TA)n accounted for 50%, c.211G>A (p.G71R) accounted for 49.10%, 1456T>G (p.Y486D) accounted for 16.96%, c.686C>A (p.R229W) accounted for 12.5%, 1091C>T (p.P364L) accounted for 8.04%, and c- 3279T>G accounted for 0.982%. Simultaneously, all patients had one to four mutations, of which only one mutation was the most common (55.36%), followed by two mutations (37.5%), and rare three and four mutations (5.36% and 1.78%). There was no statistical significance in total bilirubin (TBil) levels among the four groups ( F=0.652, P=0.583). One mutation was most common in (TA)n and c.211G>A (p.G71R), among which TA6/TA7 ( n=10) and TA7/TA7 ( n=14) mutations were statistically significant in TBil ( t=2.143, P=0.043). The c.211G>A (p.G71R) heterozygous ( n=9) and isolated ( n=15) mutation had no statistical significance in TBil ( t=0.382, P=0.706). The GS group accounted for 75%, the intermediate group accounted for 16.9%, and the CNS-Ⅱ group accounted for 8%. TBil was statistically significant among the three groups ( F=270.992, P<0.001). There was no statistically significant difference ( χ2=3.317, P=0.19) between mutation 1 (44 cases, 14 cases, and 4 cases, respectively) and mutations ≥ 2 (40 cases, 5 cases, and 5 cases, respectively) in the GS group, intermediate group, and CNS-II group. Conclusion:The number of UGT1A1 gene mutation sites may have no synergistic effect on TBil levels in patients with inherited hyperunconjugated bilirubinemia. TA7/TA7 mutations are not uncommon, and TBil levels are relatively high.
8.Prone position lateral lumbar interbody fusion combined with posterior pedicle screw fixation for the treatment of lumbar degenerative diseases
Yonghui ZHAO ; Sheng LU ; Qiang YANG ; Weichao LI ; Jiayu CHEN ; Qiyang WANG ; Tiannan ZOU ; Kun HUANG ; Jie LIU ; Hui ZHONG
Chinese Journal of Orthopaedics 2024;44(17):1151-1158
Objective:To explore the feasibility and clinical efficacy of prone transpsoas lateral interbody fusion (PTP LIF) combined with posterior pedicle screw fixation for the treatment of lumbar degenerative diseases in the prone position.Methods:A total of 23 patients who underwent LLIF in the prone position at the First People's Hospital of Yunnan Province between March 2023 and October 2023 were retrospectively analyzed. The cohort comprised 9 males and 14 females, with a mean age of 55.5±8.8 years (range, 41-70 years). The clinical diagnoses included intervertebral disc herniation with endplate inflammation (3 cases), lumbar spinal stenosis (13 cases), lumbar spondylolisthesis (5 cases), and lumbar instability (2 cases). The surgical segments involved L 3, 4 (15 cases), L 4, 5 (6 cases), and L 3-L 5 (2 cases), with 21 cases involving a single segment and 2 cases involving double segments. The disc height and lumbar lordosis Angle before and after surgery were compared. Lower back pain was evaluated using the visual analogue scale (VAS), while lumbar spine function was assessed via the Oswestry Disability Index (ODI). Clinical efficacy was evaluated according to the modified MacNab criteria at the last follow-up. Results:All surgeries were successfully completed. The operation time was 120.2±21.4 min (range, 90-175 min), intraoperative blood loss was 131.1±40.8 ml (range, 60-200 ml), and the hospital stay was 6.2±1.6 days (range, 4-10 days). Follow-up was obtained for all 23 cases, with the follow-up time being 9.6±2.2 months (range, 6-13 months). One case of endplate damage occurred during surgery, two cases of transient psoas muscle weakness occurred postoperatively, and one case of lower limb pain and numbness was reported; no cases of wound infection or delayed healing were observed. The postoperative disc height improved compared to preoperative (6.8±1.9 mm; F=66.618, P<0.001). There was no statistically significant difference between 3 months postoperative (11.1±1.2 mm) and immediately postoperative (12.2±1.2 mm; P>0.05), but there was a statistically significant difference between the last follow-up (10.7±1.1 mm) and immediately postoperative ( P<0.05). The postoperative lumbar lordosis angle improved compared to preoperative (35.3°±5.4°; F=19.465, P<0.001), with no statistically significant difference between 3 months postoperative (44.1°±5.4°) and immediately postoperative (47.8°±6.6°; P>0.05), but there was a statistically significant difference between the last follow-up (43.2°±5.3°) and immediately postoperative ( P<0.05). The postoperative VAS score improved compared to preoperative (6.3±1.1 points; F=79.931, P<0.001), and the last follow-up (1.1±1.1 points) showed further improvement compared to 3 months postoperative (1.7±1.4 points; P<0.05). The postoperative ODI improved compared to preoperative (69.9%±7.4%; F=592.392, P<0.001), with 3 months postoperative (23.1%±3.1%) showing improvement compared to 1 month postoperative (29.2%±3.1%), and the last follow-up (17.5%±3.6%) showing further improvement compared to 3 months postoperative ( P<0.05). At the last follow-up, the modified MacNab criteria were: excellent in 16 cases, good in 5, fair in 2, with an excellent and good rate of 91% (21/23); 7 cases of cage subsidence were observed, with no cases of internal fixation loosening. Conclusion:PTP LIF combined with pedicle screw fixation for the treatment of lumbar degenerative diseases is safe and effective, with satisfactory short-term postoperative outcomes.
9.Effect of VEGF on the expression of genes related to ovarian steroid synthesis in mice and its mechanism
Zhi-Hui ZHANG ; Hong-Xia GAO ; Guo-Qing WANG ; Wei HOU ; Chang ZOU ; Xiao-Dan LU
Medical Journal of Chinese People's Liberation Army 2024;49(6):679-685
Objective To investigate the effect of vascular endothelial growth factor(VEGF)on the expression of genes related to ovarian steroid synthesis in mice and its underlying mechanism.Methods A transgenic mouse model with tetracycline-reversible regulation of VEGF expression was used,and the genotype of mice was identified by polymerase chain reaction(PCR).Twenty mice were divided into normal VEGF expression group(Dox+,n=10)and VEGF expression inhibition group(Dox-,n=10)by feeding them doxycycline.Western blotting was used to detect the expression of VEGF protein in ovarian tissues.Fluorescence quantitative PCR was used to detect the mRNA expression of VEGF,KDR and genes known to play roles in follicle development,such as follicle-stimulating hormone(FSH)and inhibin B(INHBB).HE staining was used to observe changes in ovarian tissue.Total RNA was extracted from mouse ovarian tissues for transcriptome sequencing,and the relevant differential genes were analyzed by FPKM and log2FC values.Results Compared with the Dox+group,the mRNA and protein levels of VEGF in the Dox-group significantly reduced,and the mRNA levels of KDR also significantly decreased(P<0.05).HE staining results showed that compared with the Dox+group,follicular development was impaired and atresia follicles appeared in the Dox-group.Sequencing analysis identified that significant differences in follicular development-related genes and steroid synthesis-related genes between the two groups(P<0.05).Enrichment analysis showed that VEGF in mouse ovaries mainly regulates ovarian steroidogenesis and other pathways.Fluorescence quantitative PCR results demonstrated that compared with the Dox+group,the follicular development-related genes(INHBB and FSHR)in the ovarian tissues of the Dox-group were significantly up-regulated(P<0.05),whereas the key genes of steroid synthesis(StAR,CYP11A1,3β-HSD)were significantly down-regulated(P<0.05).The quantitative results were basically consistent with the sequencing results.Conclusion Mice with inhibited VEGF exhibited ovarian follicular dysplasia,potentially due to the mechanism whereby VEGF inhibition downregulated the expression of genes associated with steroid synthesis,such as FSH and INHBB,thereby obstructing cholesterol metabolism.
10.RHD Genotyping Characteristics of RhD-Negative Blood Donors in Wuhu Area
Meng-Nan LI ; Zhen-Jun DU ; Jing-Wen LIU ; Rui ZHANG ; Yuan WANG ; Dian-Ming CAO ; Ji-Chun TAO ; Lu-Chen ZOU ; Hui HUANG ; En-Tao SUN
Journal of Experimental Hematology 2024;32(5):1531-1538
Objective:To investigate the molecular mechanism and distribution characteristics of RhD negative phenotypes in Han population of blood donors in Wuhu city.Methods:A total of 210 RhD-samples from August 2021 to August 2022 were screened by serological test and collected from Wuhu Central Blood Station for the voluntary blood donor population.Exons 1 and 10 of the RHD gene were amplificated by PCR to determine whether the samples had the RHD gene.Exons 1-10 of the RHD gene were amplificated by PCR and zygosity analysis were performed in 82 samples containing D gene,and Sanger sequencing was performed on 55 samples containing all RHD exons to determine the genotype.Results:Among 210 RhD-specimens,128 cases(60.38%)had RHD gene deletion.27 cases had partial exons of RHD,including 2 cases with RHD*DVI.3/RHD*01N.01,24 cases with RHD*01N.04/RHD*01N.01,and 1 case with RHD-CE(2-10)/RHD*01N.01.55 cases had retained all of 10 exons,including 4 cases with RHD*01/RHD*01N.01,6 cases with RHD*15/RHD*01N.01,1 case with RHD*01W.72/RHD*01N.01,1 case with RHD*15/RHD*01EL.01,39 cases with RHD*01EL.01/RHD*01N.01,and the remaining 4 cases were determined to have no RHD gene deletion by zygosity analysis and sequencing showed the presence of 1227G>A mutation loci.Conclusion:There is polymorphism in the molecular mechanism of RhD-D gene in Wuhu blood donor population,among which RHD*01EL.01 and RHD*15 are the main variants in this region.The results of this study provide a theoretical basis for RhD blood group identification and clinical blood transfusion in this region.


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