1.Research hotspot and evolution trend of ocular surface flora based on bibliometrics
Yang YANG ; Ting ZHANG ; Shuangle LI ; Wenzhai CAO
International Eye Science 2025;25(1):42-49
AIM: To analyze the current status, research hotspots, and development trends of international studies on ocular surface microbiota based on bibliometrics.METHODS: Leveraging the Web of Science database, we conducted a targeted literature search on ocular surface flora. The retrieved data were meticulously screened and weighted to enhance relevance. The bibliometric analysis delved into publication trends, authorship patterns, institutional collaborations, and pivotal research themes. Employing Cite Space software, we visually dissected the landscape of institutional and national partnerships, citation impact, keyword co-occurrences, keyword clustering dynamics, and the emergence of new research trends.RESULTS: A total of 3 884 publications were ultimately included, with an overall upward trend in the number of publications in the field of ocular surface microbiota from 2003 to 2023, with the most rapid growth occurring from 2019 to 2022. The top three regions/countries by publication volume are the United States(1 039 papers), China(570 papers), and India(302 papers). The top three authors by publication volume are Willcox Mark(48 papers), Sharma Savitri(33 papers), and Fleiszig Suzanne M.J(27 papers). The top three institutions by publication volume, all from the United States, are the University of California, L.V. Prasad Eye Institute, and Harvard University. The citation network map of the literature includes 801 nodes and 1 508 connections, with the most frequently cited document being Temporal Stability and Composition of the Ocular Surface Microbiome. The top 5 keywords by frequency of occurrence are, in order, keratitis, bacterial flora, identification, inflammation, and endophthalmitis. The keyword clustering analysis yielded a total of 8 clusters, which are specifically reflected in three aspects: ocular-related diseases, the relationship between ocular surface microbiota and ocular surface structures, and detection methods for ocular surface microbiota. The keyword with the highest burst strength is ciprofloxacin. Keywords that have emerged in recent years and continue to the present include diversity, gut microbiome, and ocular surface microbiome.CONCLUSION: Currently, the study of ocular surface microflora is gaining momentum globally, with a particular focus on the diversity of microflora, the composition of the core microbiome, and its impact on ocular diseases. In the future, research should concentrate on elucidating the functional metabolism of the ocular surface microflora and further investigate the causality and mechanisms by which changes in the ocular surface microflora are related to diseases.
2.Compound Glycyrrhizin Tablets Ameliorate Liver Injury Induced by Tripterygium Glycosides Tablet by Regulating Cholesterol Metabolism
Xiaotong FU ; Chunyu CAO ; Chun LI ; Chenna LU ; Ting LIU ; Yifei YANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(2):46-55
ObjectiveTo investigate the mechanism of liver injury induced by tripterygium glycosides tablets (TG) and the molecular mechanism of compound glycyrrhizin tablets (CG) in alleviating the abnormalities of cholesterol metabolism caused by TG via cholesterol metabolism. MethodsAccording to the body weights, male Sprague-Dawley (SD) rats were randomly grouped as follows: control (pure water), low-dose TG (TG-L, 189.0 mg·kg-1·d-1), high-dose TG (TG-H, 472.5 mg·kg-1·d-1), TG-L+CG (189.0 mg·kg-1·d-1 TG + 20.25 mg·kg-1·d-1 CG), and TG-H+CG (472.5 mg·kg-1·d-1 TG + 20.25 mg·kg-1·d-1 CG), with 6 rats in each group. Rats were administrated with corresponding drugs once daily for 3 weeks. At the end of the last administration, the mRNA and protein levels of liver X receptor-alpha (LXR-α), low-density lipoprotein receptor (LDLR), adenosine triphosphate-binding cassette transporter A1 (ABCA1), adenosine triphosphate-binding cassette transporter G1 (ABCG1), 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCR), cholesterol 7α-hydroxylase (CYP7A1), cholesterol 12α-hydroxylase (CYP8B1), and sterol 27-hydroxylase (CYP27A1) in the liver tissue were determined by Real-time PCR and Western blotting, respectively. The level of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-CoAR), a regulatory enzyme of cholesterol synthesis, was measured by enzyme-linked immunosorbent assay (ELISA). HepG2 cells were used to observe the effect of TG on the cell proliferation in vitro. Specifically, HepG2 cells were grouped as follows: Low-dose TG (TG-l, 15 mg·L-1), medium-dose TG (TG-m, 45 mg·L-1), high-dose TG (TG-h, 135 mg·L-1), fenofibrate (FB, 10 μmol·L-1), CG extract, TG-h+FB (135 mg·L-1 TG + 10 μmol·L-1 FB), TG-m+FB (45 mg·L-1 TG + 10 μmol·L-1 FB), TG-l+FB (15 mg·L-1 TG + 10 μmol·L-1 FB), TG-h+CG (135 mg·L-1 TG + 60 μmol·L-1 CG), TG-m+CG (45 mg·L-1 TG + 60 μmol·L-1 CG), and TG-l+CG (15 mg·L-1 TG + 60 μmol·L-1 CG). The mRNA and protein levels of LXR-α, ABCG1, LDLR, CYP7A1, CYP8B1, and CYP27A1 in HepG2 cells were determined by Real-time PCR and Western blotting, respectively. ResultsThe rat experiment showed that compared with the control group, the TG-H group showed down-regulated mRNA levels of CYP7A1, CYP8B1, and CYP27A1 in the liver tissue (P<0.05, P<0.01), which were up-regulated by the application of CG (P<0.05, P<0.01), and the TG-H+CG group showed up-regulated mRNA level of LDLR (P<0.01). Compared with the control group, the TG-L and TG-H groups showed down-regulated protein levels of LDLR, CYP7A1, and CYP8B1 in the liver tissue (P<0.05, P<0.01). In addition, the protein levels of ABCG1 and LXR-α were down-regulated in the TG-H and TG-L groups, respectively (P<0.05). Compared with TG alone, TG+CG up-regulated the protein levels of ABCG1 and LDLR (P<0.05, P<0.01), and the protein levels of CYP7A1 and CYP8B1 in the TG-H+CG group were up-regulated (P<0.05, P<0.01). The cell experiment showed that compared with the control group, the TG-h group presented up-regulated mRNA level of LXR-α (P<0.01), and the TG-m and TG-h groups showcased down-regulated mRNA levels of LDLR and CYP7A1 (P<0.01) and up-regulated mRNA level of CYP27A1 (P<0.01) in HepG2 cells. The combination of CG with TG restored the above changes (P<0.01). Western blotting results showed that compared with the control group, the TG-m and TG-h groups showed down-regulated protein levels of LXR-α, ABCG1, LDLR, CYP7A1, CYP8B1, and CYP27A1 in HepG2 cells (P<0.01). Compared with the TG-h group, the TG-h+CG group showed up-regulated protein level of LDLR (P<0.05). Compared with the TG-m group, the TG-m+CG group showcased up-regulated protein levels of LDLR, ABCG1, CYP7A1, and CYP27A1 (P<0.05, P<0.01). ConclusionThe administration of TG at 189.0, 472.5 mg·kg-1 for 3 weeks could modulate the signaling pathways associated with cholesterol efflux, endocytosis, and cholesterol biotransformation in hepatocytes, leading to the accumulation of cholesterol and subsequent liver injury in rats. CG could ameliorate the liver injury induced by lipid metabolism disorders caused by TG by up-regulating the expression of LXR-α, LDLR, ABCG1, CYP7A1, CYP8B1, and CYP27A1 to promote cholesterol biotransformation.
3.Expert Consensus on Clinical Application of Qinbaohong Zhike Oral Liquid in Treatment of Acute Bronchitis and Acute Attack of Chronic Bronchitis
Jian LIU ; Hongchun ZHANG ; Chengxiang WANG ; Hongsheng CUI ; Xia CUI ; Shunan ZHANG ; Daowen YANG ; Cuiling FENG ; Yubo GUO ; Zengtao SUN ; Huiyong ZHANG ; Guangxi LI ; Qing MIAO ; Sumei WANG ; Liqing SHI ; Hongjun YANG ; Ting LIU ; Fangbo ZHANG ; Sheng CHEN ; Wei CHEN ; Hai WANG ; Lin LIN ; Nini QU ; Lei WU ; Dengshan WU ; Yafeng LIU ; Wenyan ZHANG ; Yueying ZHANG ; Yongfen FAN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):182-188
The Expert Consensus on Clinical Application of Qinbaohong Zhike Oral Liquid in Treatment of Acute Bronchitis and Acute Attack of Chronic Bronchitis (GS/CACM 337-2023) was released by the China Association of Chinese Medicine on December 13th, 2023. This expert consensus was developed by experts in methodology, pharmacy, and Chinese medicine in strict accordance with the development requirements of the China Association of Chinese Medicine (CACM) and based on the latest medical evidence and the clinical medication experience of well-known experts in the fields of respiratory medicine (pulmonary diseases) and pediatrics. This expert consensus defines the application of Qinbaohong Zhike oral liquid in the treatment of cough and excessive sputum caused by phlegm-heat obstructing lung, acute bronchitis, and acute attack of chronic bronchitis from the aspects of applicable populations, efficacy evaluation, usage, dosage, drug combination, and safety. It is expected to guide the rational drug use in medical and health institutions, give full play to the unique value of Qinbaohong Zhike oral liquid, and vigorously promote the inheritance and innovation of Chinese patent medicines.
4.Role of SWI/SNF Chromatin Remodeling Complex in Tumor Drug Resistance
Gui-Zhen ZHU ; Qiao YE ; Yuan LUO ; Jie PENG ; Lu WANG ; Zhao-Ting YANG ; Feng-Sen DUAN ; Bing-Qian GUO ; Zhu-Song MEI ; Guang-Yun WANG
Progress in Biochemistry and Biophysics 2025;52(1):20-31
Tumor drug resistance is an important problem in the failure of chemotherapy and targeted drug therapy, which is a complex process involving chromatin remodeling. SWI/SNF is one of the most studied ATP-dependent chromatin remodeling complexes in tumorigenesis, which plays an important role in the coordination of chromatin structural stability, gene expression, and post-translation modification. However, its mechanism in tumor drug resistance has not been systematically combed. SWI/SNF can be divided into 3 types according to its subunit composition: BAF, PBAF, and ncBAF. These 3 subtypes all contain two mutually exclusive ATPase catalytic subunits (SMARCA2 or SMARCA4), core subunits (SMARCC1 and SMARCD1), and regulatory subunits (ARID1A, PBRM1, and ACTB, etc.), which can control gene expression by regulating chromatin structure. The change of SWI/SNF complex subunits is one of the important factors of tumor drug resistance and progress. SMARCA4 and ARID1A are the most widely studied subunits in tumor drug resistance. Low expression of SMARCA4 can lead to the deletion of the transcription inhibitor of the BCL2L1 gene in mantle cell lymphoma, which will result in transcription up-regulation and significant resistance to the combination therapy of ibrutinib and venetoclax. Low expression of SMARCA4 and high expression of SMARCA2 can activate the FGFR1-pERK1/2 signaling pathway in ovarian high-grade serous carcinoma cells, which induces the overexpression of anti-apoptosis gene BCL2 and results in carboplatin resistance. SMARCA4 deletion can up-regulate epithelial-mesenchymal transition (EMT) by activating YAP1 gene expression in triple-negative breast cancer. It can also reduce the expression of Ca2+ channel IP3R3 in ovarian and lung cancer, resulting in the transfer of Ca2+ needed to induce apoptosis from endoplasmic reticulum to mitochondria damage. Thus, these two tumors are resistant to cisplatin. It has been found that verteporfin can overcome the drug resistance induced by SMARCA4 deletion. However, this inhibitor has not been applied in clinical practice. Therefore, it is a promising research direction to develop SWI/SNF ATPase targeted drugs with high oral bioavailability to treat patients with tumor resistance induced by low expression or deletion of SMARCA4. ARID1A deletion can activate the expression of ANXA1 protein in HER2+ breast cancer cells or down-regulate the expression of progesterone receptor B protein in endometrial cancer cells. The drug resistance of these two tumor cells to trastuzumab or progesterone is induced by activating AKT pathway. ARID1A deletion in ovarian cancer can increase the expression of MRP2 protein and make it resistant to carboplatin and paclitaxel. ARID1A deletion also can up-regulate the phosphorylation levels of EGFR, ErbB2, and RAF1 oncogene proteins.The ErbB and VEGF pathway are activated and EMT is increased. As a result, lung adenocarcinoma is resistant to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs). Although great progress has been made in the research on the mechanism of SWI/SNF complex inducing tumor drug resistance, most of the research is still at the protein level. It is necessary to comprehensively and deeply explore the detailed mechanism of drug resistance from gene, transcription, protein, and metabolite levels by using multi-omics techniques, which can provide sufficient theoretical basis for the diagnosis and treatment of poor tumor prognosis caused by mutation or abnormal expression of SWI/SNF subunits in clinical practice.
5.Mechanism of Modified Danggui Shaoyaosan in Improving Inflammation and Apoptosis in Acne via Regulating JNK/p38 MAPK Pathway
Gongzhen CHEN ; Yuqi YANG ; Xin LIU ; Ting TANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):31-40
ObjectiveTo explore the therapeutic effects and mechanisms of modified Danggui Shaoyaosan on acne based on the c-Jun N-terminal kinase (JNK)/p38 mitogen-activated protein kinase (p38 MAPK) pathway. MethodsA rat ear acne model was established in SD rats, and the rats were divided into a blank group, a model group, and low-, medium-, and high-dose groups of modified Danggui Shaoyaosan (7.15, 14.30, 28.60 g·kg·d-1), with six rats in each group. After the administration for 14 consecutive days, morphological changes in the rats' auricles were observed, and hematoxylin-eosin (HE) staining was used to examine the pathological changes in the acne-affected ear tissue. Enzyme-linked immunosorbent assay (ELISA) was employed to measure the levels of interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) in the ear tissue. Quantitative reverse transcription polymerase chain reaction (Real-time PCR) was performed to detect the mRNA expression levels of Caspase-3, B cell lymphoma-2 (Bcl-2), Bcl-2-associated X protein (Bax), JNK, and p38 MAPK in the ear tissue. Additionally, Western blot analysis was conducted to assess the protein levels of Caspase-3, Bcl-2, Bax, JNK, and p38 MAPK in the ear tissue. The active components and key targets of modified Danggui Shaoyaosan in the treatment of acne were identified through network pharmacology analysis. Molecular docking was then employed to evaluate the interactions between the main active components and the key targets. ResultsThe results of the animal experiment demonstrated that compared with those in the blank group, rats in the model group exhibited redness, swelling, thickening, hardening, dryness, and roughness of the auricle. The surface showed sebaceous scales and desquamation, accompanied by acne-like lesions such as papule-like elevations or cysts. Histopathological changes included keratinization, epidermal thickening, dermal collagen fiber degeneration and necrosis, subcutaneous muscle degeneration and necrosis, inflammatory cell infiltration, and fibrous tissue proliferation. The mRNA and protein expression levels of IL-1β, TNF-α, Caspase-3, Bax, JNK, and p38 MAPK were significantly increased (P<0.01), while those of Bcl-2 were significantly decreased (P<0.01). In comparison to the model group, the modified Danggui Shaoyaosan groups showed marked improvement in acne-like lesions of the auricle, with varying degrees of histopathological damage reduction. Additionally, the mRNA and protein expression levels of IL-1β, TNF-α, Caspase-3, Bax, JNK, and p38 MAPK in the tissue were significantly decreased (P<0.05, P<0.01), while those of Bcl-2 were significantly increased (P<0.05, P<0.01). Network pharmacology analysis indicated that the key compounds in modified Danggui Shaoyaosan responsible for its effects in treating acne may include acacetin, kaempferol, luteolin, quercetin, wogonin, and baicalein. These compounds exerted their effects by modulating core targets such as TNF, IL-1β, Caspase-3, and Bcl-2, thereby alleviating inflammation and apoptosis and ultimately improving acne symptoms. ConclusionModified Danggui Shaoyaosan may exert its therapeutic effects on acne by inhibiting the activation of the JNK/p38 MAPK pathway, thereby alleviating inflammation and apoptosis.
6.Optimization of purification process and component analysis of alkaloids from Zanthoxylum bungeanum Maxim
Heying YANG ; Caiping LUO ; Ting PENG ; Wenyi LIANG ; Songzhang SHEN ; Juan SU
Journal of Pharmaceutical Practice and Service 2025;43(2):75-81
Objective To optimize the process conditions and analyze the components of alkaloids from Zanthoxylum bungeanum Maxim(Z. bungeanum)using macroporous resin. Methods Combining single factor tests and orthogonal tests, the content of hydroxy-α-sanshool(HAS)and hydroxy-β-sanshool(HBS)were considered as indexes to determine the best process parameters. Ultra-performance liquid chromatography-quadrupole tandem time-of-flight mass spectrometry(UPLC-Q-TOF-MSE)was used to identify the structures of alkaloids. Results The optimal conditions were Mitsubishi HP-20 macroporous resin, the loading solution concentration was 0.2 g crude drug/ml, the ratio of crude drug to resin volume was 1 g∶2.5 ml, the diameter/height ratio of resin column was 1∶7, the dynamic adsorption flow rate was 4 times of bed volume(BV)per hour, and the adsorption time was 1 h. Impurities were removed by using 2 BV of 20% ethanol, 5 BV of 80% ethanol was used to elution, and the content of HAS and HBS was 4.71% and 1.02%, respectively. A total of 20 alkaloids were identified from Z. bungeanum. Conclusion This method was stable and feasible, obtaining high purity and various kinds of alkaloids, which could be used for the enrichment and purification of alkaloids from Z. bungeanum.
7.Structural and Spatial Analysis of The Recognition Relationship Between Influenza A Virus Neuraminidase Antigenic Epitopes and Antibodies
Zheng ZHU ; Zheng-Shan CHEN ; Guan-Ying ZHANG ; Ting FANG ; Pu FAN ; Lei BI ; Yue CUI ; Ze-Ya LI ; Chun-Yi SU ; Xiang-Yang CHI ; Chang-Ming YU
Progress in Biochemistry and Biophysics 2025;52(4):957-969
ObjectiveThis study leverages structural data from antigen-antibody complexes of the influenza A virus neuraminidase (NA) protein to investigate the spatial recognition relationship between the antigenic epitopes and antibody paratopes. MethodsStructural data on NA protein antigen-antibody complexes were comprehensively collected from the SAbDab database, and processed to obtain the amino acid sequences and spatial distribution information on antigenic epitopes and corresponding antibody paratopes. Statistical analysis was conducted on the antibody sequences, frequency of use of genes, amino acid preferences, and the lengths of complementarity determining regions (CDR). Epitope hotspots for antibody binding were analyzed, and the spatial structural similarity of antibody paratopes was calculated and subjected to clustering, which allowed for a comprehensively exploration of the spatial recognition relationship between antigenic epitopes and antibodies. The specificity of antibodies targeting different antigenic epitope clusters was further validated through bio-layer interferometry (BLI) experiments. ResultsThe collected data revealed that the antigen-antibody complex structure data of influenza A virus NA protein in SAbDab database were mainly from H3N2, H7N9 and H1N1 subtypes. The hotspot regions of antigen epitopes were primarily located around the catalytic active site. The antibodies used for structural analysis were primarily derived from human and murine sources. Among murine antibodies, the most frequently used V-J gene combination was IGHV1-12*01/IGHJ2*01, while for human antibodies, the most common combination was IGHV1-69*01/IGHJ6*01. There were significant differences in the lengths and usage preferences of heavy chain CDR amino acids between antibodies that bind within the catalytic active site and those that bind to regions outside the catalytic active site. The results revealed that structurally similar antibodies could recognize the same epitopes, indicating a specific spatial recognition between antibody and antigen epitopes. Structural overlap in the binding regions was observed for antibodies with similar paratope structures, and the competitive binding of these antibodies to the epitope was confirmed through BLI experiments. ConclusionThe antigen epitopes of NA protein mainly ditributed around the catalytic active site and its surrounding loops. Spatial complementarity and electrostatic interactions play crucial roles in the recognition and binding of antibodies to antigenic epitopes in the catalytic region. There existed a spatial recognition relationship between antigens and antibodies that was independent of the uniqueness of antibody sequences, which means that antibodies with different sequences could potentially form similar local spatial structures and recognize the same epitopes.
8.Inhibition of HDAC3 Promotes Psoriasis Development in Mice Through Regulating Th17
Fan XU ; Xin-Rui ZHANG ; Yang-Chen XIA ; Wen-Ting LI ; Hao CHEN ; An-Qi QIN ; Ai-Hong ZHANG ; Yi-Ran ZHU ; Feng TIAN ; Quan-Hui ZHENG
Progress in Biochemistry and Biophysics 2025;52(4):1008-1017
ObjectiveTo investigate the influence of histone deacetylase 3 (HDAC3) on the occurrence, development of psoriasis-like inflammation in mice, and the relative immune mechanisms. MethodsHealthy C57BL/6 mice aged 6-8 weeks were selected and randomly divided into 3 groups: control group (Control), psoriasis model group (IMQ), and HDAC3 inhibitor RGFP966-treated psoriasis model group (IMQ+RGFP966). One day prior to the experiment, the back hair of the mice was shaved. After a one-day stabilization period, the mice in Control group was treated with an equal amount of vaseline, while the mice in IMQ group was treated with imiquimod (62.5 mg/d) applied topically on the back to establish a psoriasis-like inflammation model. The mice in IMQ+RGFP966 group received intervention with a high dose of the HDAC3-selective inhibitor RGFP966 (30 mg/kg) based on the psoriasis-like model. All groups were treated continuously for 5 d, during which psoriasis-like inflammation symptoms (scaling, erythema, skin thickness), body weight, and mental status were observed and recorded, with photographs taken for documentation. After euthanasia, hematoxylin-eosin (HE) staining was used to assess the effect of RGFP966 on the skin tissue structure of the mice, and skin thickness was measured. The mRNA and protein expression levels of HDAC3 in skin tissues were detected using reverse transcription real-time quantitative polymerase chain reaction (RT-qPCR) and Western blot (WB), respectively. Flow cytometry was employed to analyze neutrophils in peripheral blood and lymph nodes, CD4+ T lymphocytes, CD8+ T lymphocytes in peripheral blood, and IL-17A secretion by peripheral blood CD4+ T lymphocytes. Additionally, spleen CD4+ T lymphocyte expression of HDAC3, CCR6, CCR8, and IL-17A secretion levels were analyzed. Immunohistochemistry was used to detect the localization and expression levels of HDAC3, IL-17A, and IL-10 in skin tissues. ResultsCompared with the Control group, the IMQ group exhibited significant psoriasis-like inflammation, characterized by erythema, scaling, and skin wrinkling. Compared with the IMQ group, RGFP966 exacerbated psoriasis-like inflammatory symptoms, leading to increased hyperkeratosis. The psoriasis area and severity index (PASI) skin symptom scores were higher in the IMQ group than those in the Control group, and the scores were further elevated in the IMQ+RGFP966 group compared to the IMQ group. Skin thickness measurements showed a trend of IMQ+RGFP966>IMQ>Control. The numbers of neutrophils in the blood and lymph nodes increased sequentially in the Control, IMQ, and IMQ+RGFP966 groups, with a similar trend observed for CD4+ and CD8+ T lymphocytes in the blood. In skin tissues, compared with the Control group, the mRNA and protein levels of HDAC3 decreased in the IMQ group, but RGFP966 did not further reduce these expressions. HDAC3 was primarily located in the nucleus. Compared with the Control group, the nuclear HDAC3 content decreased in the skin tissues of the IMQ group, and RGFP966 further reduced nuclear HDAC3. Compared with the Control and IMQ groups, RGFP966 treatment decreased HDAC3 expression in splenic CD4+ and CD8+ T cells. RGFP966 treatment increased the expression of CCR6 and CCR8 in splenic CD4+ T cells and enhanced IL-17A secretion by peripheral blood and splenic CD4+ T lymphocytes. Additionally, compared with the IMQ group, RGFP966 reduced IL-10 protein levels and upregulated IL-17A expression in skin tissues. ConclusionRGFP966 exacerbates psoriatic-like inflammatory responses by inhibiting HDAC3, increasing the secretion of the cytokine IL-17A, and upregulating the expression of chemokines CCR8 and CCR6.
9.Identification and Potential Clinical Utility of Common Genetic Variants in Gestational Diabetes among Chinese Pregnant Women
Claudia Ha-ting TAM ; Ying WANG ; Chi Chiu WANG ; Lai Yuk YUEN ; Cadmon King-poo LIM ; Junhong LENG ; Ling WU ; Alex Chi-wai NG ; Yong HOU ; Kit Ying TSOI ; Hui WANG ; Risa OZAKI ; Albert Martin LI ; Qingqing WANG ; Juliana Chung-ngor CHAN ; Yan Chou YE ; Wing Hung TAM ; Xilin YANG ; Ronald Ching-wan MA
Diabetes & Metabolism Journal 2025;49(1):128-143
Background:
The genetic basis for hyperglycaemia in pregnancy remain unclear. This study aimed to uncover the genetic determinants of gestational diabetes mellitus (GDM) and investigate their applications.
Methods:
We performed a meta-analysis of genome-wide association studies (GWAS) for GDM in Chinese women (464 cases and 1,217 controls), followed by de novo replications in an independent Chinese cohort (564 cases and 572 controls) and in silico replication in European (12,332 cases and 131,109 controls) and multi-ethnic populations (5,485 cases and 347,856 controls). A polygenic risk score (PRS) was derived based on the identified variants.
Results:
Using the genome-wide scan and candidate gene approaches, we identified four susceptibility loci for GDM. These included three previously reported loci for GDM and type 2 diabetes mellitus (T2DM) at MTNR1B (rs7945617, odds ratio [OR], 1.64; 95% confidence interval [CI],1.38 to 1.96]), CDKAL1 (rs7754840, OR, 1.33; 95% CI, 1.13 to 1.58), and INS-IGF2-KCNQ1 (rs2237897, OR, 1.48; 95% CI, 1.23 to 1.79), as well as a novel genome-wide significant locus near TBR1-SLC4A10 (rs117781972, OR, 2.05; 95% CI, 1.61 to 2.62; Pmeta=7.6×10-9), which has not been previously reported in GWAS for T2DM or glycaemic traits. Moreover, we found that women with a high PRS (top quintile) had over threefold (95% CI, 2.30 to 4.09; Pmeta=3.1×10-14) and 71% (95% CI, 1.08 to 2.71; P=0.0220) higher risk for GDM and abnormal glucose tolerance post-pregnancy, respectively, compared to other individuals.
Conclusion
Our results indicate that the genetic architecture of glucose metabolism exhibits both similarities and differences between the pregnant and non-pregnant states. Integrating genetic information can facilitate identification of pregnant women at a higher risk of developing GDM or later diabetes.
10.Identification and Potential Clinical Utility of Common Genetic Variants in Gestational Diabetes among Chinese Pregnant Women
Claudia Ha-ting TAM ; Ying WANG ; Chi Chiu WANG ; Lai Yuk YUEN ; Cadmon King-poo LIM ; Junhong LENG ; Ling WU ; Alex Chi-wai NG ; Yong HOU ; Kit Ying TSOI ; Hui WANG ; Risa OZAKI ; Albert Martin LI ; Qingqing WANG ; Juliana Chung-ngor CHAN ; Yan Chou YE ; Wing Hung TAM ; Xilin YANG ; Ronald Ching-wan MA
Diabetes & Metabolism Journal 2025;49(1):128-143
Background:
The genetic basis for hyperglycaemia in pregnancy remain unclear. This study aimed to uncover the genetic determinants of gestational diabetes mellitus (GDM) and investigate their applications.
Methods:
We performed a meta-analysis of genome-wide association studies (GWAS) for GDM in Chinese women (464 cases and 1,217 controls), followed by de novo replications in an independent Chinese cohort (564 cases and 572 controls) and in silico replication in European (12,332 cases and 131,109 controls) and multi-ethnic populations (5,485 cases and 347,856 controls). A polygenic risk score (PRS) was derived based on the identified variants.
Results:
Using the genome-wide scan and candidate gene approaches, we identified four susceptibility loci for GDM. These included three previously reported loci for GDM and type 2 diabetes mellitus (T2DM) at MTNR1B (rs7945617, odds ratio [OR], 1.64; 95% confidence interval [CI],1.38 to 1.96]), CDKAL1 (rs7754840, OR, 1.33; 95% CI, 1.13 to 1.58), and INS-IGF2-KCNQ1 (rs2237897, OR, 1.48; 95% CI, 1.23 to 1.79), as well as a novel genome-wide significant locus near TBR1-SLC4A10 (rs117781972, OR, 2.05; 95% CI, 1.61 to 2.62; Pmeta=7.6×10-9), which has not been previously reported in GWAS for T2DM or glycaemic traits. Moreover, we found that women with a high PRS (top quintile) had over threefold (95% CI, 2.30 to 4.09; Pmeta=3.1×10-14) and 71% (95% CI, 1.08 to 2.71; P=0.0220) higher risk for GDM and abnormal glucose tolerance post-pregnancy, respectively, compared to other individuals.
Conclusion
Our results indicate that the genetic architecture of glucose metabolism exhibits both similarities and differences between the pregnant and non-pregnant states. Integrating genetic information can facilitate identification of pregnant women at a higher risk of developing GDM or later diabetes.

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