1.Effects of total flavonoids from Carthamus tinctorius L. on hepatic stellate cell activation based on miRNA-204/NUAK1/Hippo signaling axis
Mingqi LI ; Xiaolu ZHAO ; Chenlu ZHANG ; Yinghe WANG ; Yuehong MA
China Pharmacy 2026;37(3):311-316
OBJECTIVE To investigate the effects of total flavonoids from Carthamus tinctorius L. (TFCTL) on hepatic stellate cell (HSC) activation based on the microRNA (miRNA)-204/NUAK family SNF1-like kinase 1 (NUAK1)/Hippo signaling axis, thereby elucidating the potential mechanism underlying their antifibrotic effects. METHODS The HSC-T6 cells were divided into control group, model group, TFCTL low-concentration group (20 μg/mL), TFCTL medium-concentration group (40 μg/mL), and TFCTL high-concentration group (60 μg/mL). Except for control group, the remaining groups were treated with 5 ng/mL of transforming growth factor-β to induce the activation of hepatic stellate cells, followed by the addition of corresponding drug solutions/culture medium and incubation for 24 hours. Cell apoptosis was assessed, the expression levels of α-smooth muscle actin (α-SMA), type Ⅰ collagen (Collagen Ⅰ) and proteins associated with the Hippo/Yes-associated protein (YAP) pathway [YAP, large tumor suppressor kinase 1 (LATS1), and mammalian STE20-like kinase 1 (MST1)] were detected. Additionally, cell transfection was used to investigate the activity of the miRNA-204/NUAK1/Hippo signaling axis at both the genetic and protein levels. RESULTS After intervention with TFCTL, the apoptosis rate of HSC-T6 cells and the protein expressions of MST1 (except for the TFCTL high-concentration group) and LATS1 were significantly increased (P<0.05), while the protein expressions of α-SMA, CollagenⅠ, and YAP (except for the TFCTL medium-concentration group) were significantly decreased (P<0.05). Further results from cell transfection experiments revealed that after transfection with miRNA-204 mimics, the mRNA it’s protein expressions of α-SMA, CollagenⅠ, NUAK1, and YAP in HSC-T6 cells were significantly decreased (P<0.05), while the mRNA and protein expressions of LATS1 and the mRNA expression of MST1 were significantly increased (P<0.05). Conversely, the results were opposite following transfection with miRNA-204 inhibitors. CONCLUSIONS TFCTL can exert anti-hepatic fibrosis effects by up-regulating the expression of miRNA-204, thereby down- regulating the expressions of NUAK1, inactivating the Hippo/YAP pathway, which in turn suppresses the activation of HSC and promotes their apoptosis.
2.Mechanism of action of organelle interactions in the progression of liver fibrosis and traditional Chinese medicine prevention and treatment strategies
Yuanyuan ZHENG ; Chenlu ZHAO ; Lihui ZHANG ; Sutong LIU ; Wenxia ZHAO
Journal of Clinical Hepatology 2026;42(3):711-717
Liver fibrosis is the core pathological stage of the progression of various chronic liver diseases to liver cirrhosis, and hepatic stellate cell (HSC) activation and the abnormal accumulation of collagen fibers are important processes for the development and progression of liver fibrosis. In recent years, studies have shown that HSC activation is regulated by the complex interactions between various organelles (including mitochondria, endoplasmic reticulum, Golgi apparatus, lysosome, and peroxisomes), and such interactions affect the key cellular processes such as energy metabolism, protein synthesis and folding, reactive oxygen species balance, and autophagy, thereby participating in the progression of liver fibrosis. Meanwhile, traditional Chinese medicine and its active ingredients with multi-target synergistic effects have attracted wide attention. From the perspective of the interaction between organelles, this article systematically elaborates on the specific mechanism of such interactions in the progression of liver fibrosis and reviews how traditional Chinese medicine inhibits HSC activation and collagen production by regulating the function of these organelle and their interaction networks, thereby exerting an anti-liver fibrosis effect, in order to provide a theoretical basis for in-depth understanding of the pathological mechanism of liver fibrosis and the development of new traditional Chinese medicine intervention strategies.
3.Metabolic dysfunction-associated fatty liver disease with different clinical phenotypes: Pathogenesis and strategies for integrated traditional Chinese and Western medicine treatment
Wenxia ZHAO ; Lei GAO ; Xinju CHEN ; Yuanyuan ZHENG ; Sutong LIU ; Lihui ZHANG ; Qing ZHAO ; Chenlu ZHAO
Journal of Clinical Hepatology 2026;42(4):930-937
Metabolic dysfunction-associated fatty liver disease (MAFLD) is a chronic metabolic liver disorder with complex etiologies. Different clinical phenotypes of MAFLD (such as obesity, hyperlipidemia, type 2 diabetes mellitus, the postmenopausal state, and chronic hepatitis B) have different mechanisms of action in the development and progression of MAFLD, leading to high heterogeneity in its clinical progression and prognosis. This article systematically reviews the pathogeneses and clinical features of the above five clinical phenotypes of MAFLD and elaborates on the corresponding individualized diagnosis and treatment regimens integrating traditional Chinese medicine and Western medicine, in order to provide a reference for clinical practice and improve clinical diagnosis and treatment.
4.Clinical Study on Treatment of Non-alcoholic Steatohepatitis Patients with Dyslipidemia by Dizhuo Huayu Prescription with Catgut Embedding Therapy
Xiaoyan LIU ; Dongfang SHANG ; Lihui ZHANG ; Chenlu ZHAO ; Siying WANG ; Huaxin CHEN ; Wenxia ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(20):152-159
ObjectiveTo observe the clinical efficacy and safety of Dizhuo Huayu prescription combined with catgut embedding therapy in patients with nonalcoholic steatohepatitis (NASH) and dyslipidemia and explore the effect of the combined therapy on inflammatory cytokines interleukin (IL)-18 and IL-1β. MethodsA total of 82 patients with NASH and dyslipidemia from the Gastroenterology Department of the First Affiliated Hospital of Henan University of Chinese Medicine were randomly divided into a control group and a treatment group, with 41 patients in each group. The control group received Polyene Polyenylphosphatidylcholine Capsules, while the treatment group received Dizhuo Huayu prescription granules combined with catgut embedding. The treatment duration was 24 weeks for both groups. At weeks 0, 12, and 24, the traditional Chinese medicine (TCM) syndrome score, body mass index (BMI), liver fat content assessed by Fibroscan (CAP value), the level of alanine transaminase (ALT), aspartate aminotransferase (AST), gamma-glutamyl transferase (GGT), total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and free fatty acid (FFA), and the expression of inflammatory cytokines IL-18 and IL-1β in serum were observed. Adverse reactions in both groups were recorded. ResultsA comparison of the comprehensive therapeutic effects between the two groups after 24 weeks of treatment revealed that the total effective rate was 62.16% (23/37) in the control group and 85.71% (30/35) in the treatment group, with a statistically significant difference (χ2 = 5.14, P<0.05). At weeks 12 and 24 after treatment, the TCM syndrome score, BMI, CAP value, TC, TG, LDL-C, and FFA were all significantly lower in both groups compared to pre-treatment levels, while the HDL-C level significantly increased (P<0.05). The effect was better at week 24 (P<0.05) than at week 12 (P<0.05), and the treatment group showed better outcomes than the control group at weeks 12 and 24 after treatment (P<0.05). After 24 weeks of treatment, both groups exhibited significant reductions in IL-18 and IL-1β levels (P<0.05). The treatment group demonstrated superior efficacy compared to the control group after treatment (P<0.05). Both groups experienced decreases in ALT, AST, and GGT levels after treatment (P<0.05). However, there were no statistically significant differences between the 12-week and 24-week post-treatment values within each group, nor were there significant differences between the two groups. No significant adverse reactions were observed in both groups. ConclusionThe Dizhuo Huayu prescription combined with catgut embedding therapy is safe and effective in treating patients with NASH and dyslipidemia, exhibiting hepatoprotective, anti-inflammatory, lipid-regulating, and weight-reducing effects.
5.Summary of the best evidence for blood glucose monitoring and management in patients with diabetes of the exocrine pancreas
Chenlu HU ; Xiangru PEI ; Lifei ZHANG ; Hongxing FU ; Jingfen JIN
Chinese Journal of Nursing 2025;60(17):2158-2164
Objective To retrieve,evaluate and summarize the best evidence for blood glucose monitoring and management in patients with diabetes of the exocrine pancreas(DEP),and to provide evidence-based basis for clinical practice.Methods According to the"6S"evidence model,relevant evidence on blood glucose management in patients with DEP was searched from computer decision support systems,guideline networks,professional association websites and databases from top to bottom,covering clinical decision-making,clinical practice guidelines,evidence summaries,systematic reviews,expert consensuses,and randomized controlled trials.The search scope was from the establishment of the databases to June 30,2024.Totally 2 researchers independently evaluated the quality of the included literature,and extracted data and summarized evidence that met the criteria.Results A total of 10 articles were included,including 3 guidelines,1 expert consensus,2 systematic reviews,l clinical decision,1 RCT,and 2 cohort studies.Finally,26 pieces of best evidence were formed from 5 aspects,including blood glucose management team construction and goals,blood glucose monitoring methods,glucose control medication management,lifestyle health education and treatment of hypoglycemia.Conclusion This study summarizes the best evidence for blood glucose monitoring and management in DEP patients,which can provide resource preparation for clinical translation and a basis for medical staff to carry out blood glucose management in DEP patients.
6.Mitochondria derived from human embryonic stem cell-derived mesenchymal stem cells alleviate the inflammatory response in human gingival fibroblasts.
Bicong GAO ; Chenlu SHEN ; Kejia LV ; Xuehui LI ; Yongting ZHANG ; Fan SHI ; Hongyan DIAO ; Hua YAO
Journal of Zhejiang University. Science. B 2025;26(8):778-788
Periodontitis is a common oral disease caused by bacteria coupled with an excessive host immune response. Stem cell therapy can be a promising treatment strategy for periodontitis, but the relevant mechanism is complicated. This study aimed to explore the therapeutic potential of mitochondria from human embryonic stem cell-derived mesenchymal stem cells (hESC-MSCs) for the treatment of periodontitis. The gingival tissues of periodontitis patients are characterized by abnormal mitochondrial structure. Human gingival fibroblasts (HGFs) were exposed to 5 μg/mL lipopolysaccharide (LPS) for 24 h to establish a cell injury model. When treated with hESC-MSCs or mitochondria derived from hESC-MSCs, HGFs showed reduced expression of inflammatory genes, increased adenosine triphosphate (ATP) level, decreased reactive oxygen species (ROS) production, and enhanced mitochondrial function compared to the control. The average efficiency of isolated mitochondrial transfer by hESC-MSCs was determined to be 8.93%. Besides, a therapy of local mitochondrial injection in mice with LPS-induced periodontitis showed a reduction in inflammatory gene expression, as well as an increase in both the mitochondrial number and the aspect ratio in gingival tissues. In conclusion, our results indicate that mitochondria derived from hESC-MSCs can reduce the inflammatory response and improve mitochondrial function in HGFs, suggesting that the transfer of mitochondria between hESC-MSCs and HGFs serves as a potential mechanism underlying the therapeutic effect of stem cells.
Humans
;
Gingiva/cytology*
;
Fibroblasts/metabolism*
;
Mitochondria/physiology*
;
Mesenchymal Stem Cells/cytology*
;
Animals
;
Periodontitis/therapy*
;
Mice
;
Reactive Oxygen Species/metabolism*
;
Inflammation
;
Lipopolysaccharides
;
Human Embryonic Stem Cells/cytology*
;
Cells, Cultured
;
Adenosine Triphosphate/metabolism*
;
Male
7.Newborn screening, clinical characteristics and genetic variant analysis of Glutaric acidemia type I in Henan Province.
Xinyun ZHU ; Dehua ZHAO ; Yizhuo XU ; Jie ZHANG ; Xiaole LI ; Suna LIU ; Min NI ; Yihui REN ; Chong ZHANG ; Yaqing GUO ; Junqi LI ; Shubo LYU ; Chenlu JIA ; Ying SHI
Chinese Journal of Medical Genetics 2025;42(6):641-647
OBJECTIVE:
To explore the incidence, clinical features, genetic variant characteristics and prognosis of Glutaric acidemia type I (GA1) among neonates from Henan Province.
METHODS:
A total of 814 625 neonates undergoing screening for inherited metabolic diseases by tandem mass spectrometry (MS/MS) at the Third Affiliated Hospital of Zhengzhou University from January 2016 to December 2022 were selected as the study subjects. A retrospective method was adopted to collect the clinical data of the patients. Whole exome sequencing was carried out to detect GCDH gene variants in individuals with positive results by GA1 newborn screening, and Sanger sequencing was used to verify the candidate variants. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), the pathogenicity of candidate variants was rated. This study was approved by the Medical Ethics Committee of the Hospital (Ethics Number: 2019 Medical Ethics Review No. 67).
RESULTS:
Eight cases of GA1 were diagnosed among the 814 625 neonates. Blood glutaryl carnitine (C5DC) and urine glutaric acid (GA) levels of the 8 children were higher than the normal reference values. In total 12 variants were detected, all of which were missense variants. c.1064G>A (p.Arg355His) was the most common one, accounting for 21.4% (3/14). Three GCDH gene variants, including 1297G>C (p.Ala433Pro), c.467G>A (p.Gly156Asp) and c.1125T>G (p.Cys375Trp), were previously unreported. REVEL software analysis predicted that all of the three variants were harmful. 3D protein structure modeling indicated that the three variants may cause amino acid residue alterations, and c.1297G>C (p.Ala433Pro) and c.1125T>G (p.Cys375Trp) may result in increase in hydrogen bonds and affect the function of GCDH protein. By December 2023, one of the eight children had deceased, and another child had severe clinical symptoms with poor prognosis. Six children had a good prognosis, of which two had mild motor development delay and four had normal development without clinical symptoms.
CONCLUSION
The incidence of GA1 in newborns screened by MS/MS in Henan Province is 1/101 828, and the carrier rate of pathogenic GCDH variants is 1/160. The c.1064G>A (p.Arg355His) may be the hotspot variant of the GCDH gene among children with GA1 in Henan. Discovery of the three novel variants has enriched the mutational spectrum of the GCDH gene and provide a basis for the early diagnosis, treatment, prognosis and genetic counseling of this disease.
Humans
;
Amino Acid Metabolism, Inborn Errors/epidemiology*
;
Glutaryl-CoA Dehydrogenase/chemistry*
;
Infant, Newborn
;
Female
;
Neonatal Screening/methods*
;
Male
;
Brain Diseases, Metabolic/epidemiology*
;
China/epidemiology*
;
Retrospective Studies
;
Mutation
;
Genetic Variation
;
Glutarates
8.Effect of Angong Niuhuang pill combined with conventional treat-ment on neurological function recovery in patients with phlegm-heat internal closed cerebral hemorrhage:A randomized controlled trial based on the AMPK-PGC1α-NRF2 pathway
Yuxing WU ; Yi LI ; Xiaoqing YUE ; Chenlu ZHANG ; Yanping ZHANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(10):1391-1399
AIM:To examine the impact of An-gong Niuhuang pill in conjunction with convention-al therapy on the recovery of neurological function in patients with cerebral hemorrhage(ICH)charac-terized by phlegm-heat internal obstruction,and to evaluate its efficacy in enhancing neurological func-tion,promoting brain tissue repair,and mitigating oxidative stress.Additionally,this study aims to elu-cidate the potential mechanisms underlying these effects through the AMPK-PGC1α-Nrf2 pathway.METHODS:A total of 130 patients with ICH charac-terized by phlegm-heat internal closure were re-cruited and randomly allocated into a control group(receiving conventional treatment)and a study group(receiving Angong Niuhuang pill in combination with conventional treatment)using the random number table method,with 65 cases in each group.Post-treatment assessments included the National Institutes of Health Stroke Scale(NI-HSS)score,Glasgow Coma Scale(GCS)score,modi-fied Rankin scale(mRS)score,as well as tissue lev-els of AMP-activated protein kinase(AMPK),peroxi-some proliferator-activated receptor gamma coacti-vator-1α(PGC1α),and nuclear factor erythroid 2-related factor 2(NRF2).Additionally,serum levels of superoxide dismutase(SOD),malondialdehyde(MDA),reactive oxygen species(ROS),interleukin-10(IL-10),tumor necrosis factor-α(TNF-α),inter-leukin-6(IL-6),glutathione peroxidase 4(GPX4),ac-yl-coenzyme A synthetase long-chain family mem-ber 4(ACSL4),iron ions,tumor volume,brain ede-ma volume,and the incidence of adverse reactions were evaluated.RESULTS:Each group comprised 65 cases.Post-treatment,the NIHSS score(9.97±1.22)and mRS score(2.29±0.33)in the Research Group were significantly lower than those in the Control Group(11.17±1.52 and 2.64±0.45,respec-tively),with p-values less than 0.05.Additionally,the GCS score for the Research Group(14.57±1.19)was notably higher compared to the control group(13.18±1.05)(P<0.05).After treatment,the expres-sions of AMPK[(3.34±0.81)ng/mL],PGC1α[(2.30±0.67)ng/mL]and NRF2[(3.72±0.85)ng/mL]in the tissues of the group were higher than those of the control group[(2.63±0.65)ng/mL,(1.83±0.70)ng/mL,(2.91±0.96)ng/mL](P<0.05).After treatment,the levels of serum SOD[(98.76±6.67)U/mL]and IL-10[(40.37±5.61)pg/mL]in the research group were higher than those in the Control group group[(89.65±6.89)U/mL,(35.69±4.65)pg/mL](P<0.05);the serum levels of MDA[(3.36±0.62)nmol/mL],ROS[(126.35±23.74)U/mL],TNF-α[(17.22±2.07)pg/mL]and IL-6[(33.37±3.76)pg/mL]in the group were lower than those in the control group group[(3.76±0.83)nmol/mL,(159.85±26.67)nmol/mL,(19.15±2.34)nmol/mL,(41.26±4.91)nmol/mL](P<0.05).After treatment,the serum GPX4 level in the Research Group[(9.87±1.25)ng/mL]was higher than that in the control group[(8.16±1.12)ng/mL](P<0.05).The serum levels of ACSL4[(8.74±1.45)ng/mL]and iron ion[(27.44±3.35)μmol/L]in the study group were lower than those in the control group(10.12±2.11)ng/mL,(30.46±3.17)μmol/L](P<0.05).After treatment,the hematoma volume[(6.46±1.13)mL]and brain edema volume[(11.47±1.76)mL]in the research group were bet-ter than those in the Control group[(8.71±1.02)mL,(3.41±2.04)mL](P<0.05).CONCLUSION:The combination of Angong Niuhuang pill with conven-tional treatment demonstrates significant efficacy in improving neurological function,promoting brain tissue repair,and alleviating oxidative stress,thereby exhibiting high application value in clinical practice.
9.Effect of Angong Niuhuang pill combined with conventional treat-ment on neurological function recovery in patients with phlegm-heat internal closed cerebral hemorrhage:A randomized controlled trial based on the AMPK-PGC1α-NRF2 pathway
Yuxing WU ; Yi LI ; Xiaoqing YUE ; Chenlu ZHANG ; Yanping ZHANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(10):1391-1399
AIM:To examine the impact of An-gong Niuhuang pill in conjunction with convention-al therapy on the recovery of neurological function in patients with cerebral hemorrhage(ICH)charac-terized by phlegm-heat internal obstruction,and to evaluate its efficacy in enhancing neurological func-tion,promoting brain tissue repair,and mitigating oxidative stress.Additionally,this study aims to elu-cidate the potential mechanisms underlying these effects through the AMPK-PGC1α-Nrf2 pathway.METHODS:A total of 130 patients with ICH charac-terized by phlegm-heat internal closure were re-cruited and randomly allocated into a control group(receiving conventional treatment)and a study group(receiving Angong Niuhuang pill in combination with conventional treatment)using the random number table method,with 65 cases in each group.Post-treatment assessments included the National Institutes of Health Stroke Scale(NI-HSS)score,Glasgow Coma Scale(GCS)score,modi-fied Rankin scale(mRS)score,as well as tissue lev-els of AMP-activated protein kinase(AMPK),peroxi-some proliferator-activated receptor gamma coacti-vator-1α(PGC1α),and nuclear factor erythroid 2-related factor 2(NRF2).Additionally,serum levels of superoxide dismutase(SOD),malondialdehyde(MDA),reactive oxygen species(ROS),interleukin-10(IL-10),tumor necrosis factor-α(TNF-α),inter-leukin-6(IL-6),glutathione peroxidase 4(GPX4),ac-yl-coenzyme A synthetase long-chain family mem-ber 4(ACSL4),iron ions,tumor volume,brain ede-ma volume,and the incidence of adverse reactions were evaluated.RESULTS:Each group comprised 65 cases.Post-treatment,the NIHSS score(9.97±1.22)and mRS score(2.29±0.33)in the Research Group were significantly lower than those in the Control Group(11.17±1.52 and 2.64±0.45,respec-tively),with p-values less than 0.05.Additionally,the GCS score for the Research Group(14.57±1.19)was notably higher compared to the control group(13.18±1.05)(P<0.05).After treatment,the expres-sions of AMPK[(3.34±0.81)ng/mL],PGC1α[(2.30±0.67)ng/mL]and NRF2[(3.72±0.85)ng/mL]in the tissues of the group were higher than those of the control group[(2.63±0.65)ng/mL,(1.83±0.70)ng/mL,(2.91±0.96)ng/mL](P<0.05).After treatment,the levels of serum SOD[(98.76±6.67)U/mL]and IL-10[(40.37±5.61)pg/mL]in the research group were higher than those in the Control group group[(89.65±6.89)U/mL,(35.69±4.65)pg/mL](P<0.05);the serum levels of MDA[(3.36±0.62)nmol/mL],ROS[(126.35±23.74)U/mL],TNF-α[(17.22±2.07)pg/mL]and IL-6[(33.37±3.76)pg/mL]in the group were lower than those in the control group group[(3.76±0.83)nmol/mL,(159.85±26.67)nmol/mL,(19.15±2.34)nmol/mL,(41.26±4.91)nmol/mL](P<0.05).After treatment,the serum GPX4 level in the Research Group[(9.87±1.25)ng/mL]was higher than that in the control group[(8.16±1.12)ng/mL](P<0.05).The serum levels of ACSL4[(8.74±1.45)ng/mL]and iron ion[(27.44±3.35)μmol/L]in the study group were lower than those in the control group(10.12±2.11)ng/mL,(30.46±3.17)μmol/L](P<0.05).After treatment,the hematoma volume[(6.46±1.13)mL]and brain edema volume[(11.47±1.76)mL]in the research group were bet-ter than those in the Control group[(8.71±1.02)mL,(3.41±2.04)mL](P<0.05).CONCLUSION:The combination of Angong Niuhuang pill with conven-tional treatment demonstrates significant efficacy in improving neurological function,promoting brain tissue repair,and alleviating oxidative stress,thereby exhibiting high application value in clinical practice.
10.Newborn screening, clinical characteristics and genetic variant analysis of Glutaric acidemia type I in Henan Province
Xinyun ZHU ; Dehua ZHAO ; Yizhuo XU ; Jie ZHANG ; Xiaole LI ; Suna LIU ; Min NI ; Yihui REN ; Chong ZHANG ; Yaqing GUO ; Junqi LI ; Shubo LYU ; Chenlu JIA ; Ying SHI
Chinese Journal of Medical Genetics 2025;42(6):641-647
Objective:To explore the incidence, clinical features, genetic variant characteristics and prognosis of Glutaric acidemia type I (GA1) among neonates from Henan Province.Methods:A total of 814 625 neonates undergoing screening for inherited metabolic diseases by tandem mass spectrometry (MS/MS) at the Third Affiliated Hospital of Zhengzhou University from January 2016 to December 2022 were selected as the study subjects. A retrospective method was adopted to collect the clinical data of the patients. Whole exome sequencing was carried out to detect GCDH gene variants in individuals with positive results by GA1 newborn screening, and Sanger sequencing was used to verify the candidate variants. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), the pathogenicity of candidate variants was rated. This study was approved by the Medical Ethics Committee of the Hospital (Approval Number: 2019 Medical Ethics Review No. 67). Results:Eight cases of GA1 were diagnosed among the 814 625 neonates. Blood glutaryl carnitine (C5DC) and urine glutaric acid (GA) levels of the 8 children were higher than the normal reference values. In total 12 variants were detected, all of which were missense variants. c. 1064G>A (p.Arg355His) was the most common one, accounting for 21.4% (3/14). Three GCDH gene variants, including 1297G>C (p.Ala433Pro), c. 467G>A (p.Gly156Asp) and c. 1125T>G (p.Cys375Trp), were previously unreported. REVEL software analysis predicted that all of the three variants were harmful. 3D protein structure modeling indicated that the three variants may cause amino acid residue alterations, and c. 1297G>C (p.Ala433Pro) and c. 1125T>G (p.Cys375Trp) may result in increase in hydrogen bonds and may affect the function of GCDH protein. By December 2023, one of the eight children had deceased, and another child had severe clinical symptoms with poor prognosis. Six children had a good prognosis, of which two had mild motor development delay and four had normal development without clinical symptoms. Conclusion:The incidence of GA1 in newborns screened by MS/MS in Henan Province is 1/101 828, and the carrier rate of pathogenic GCDH variants is 1/160. The c. 1064G>A (p.Arg355His) may be the hotspot variant of the GCDH gene among children with GA1 in Henan. Discovery of the three novel variants has enriched the mutational spectrum of the GCDH gene and provide a basis for the early diagnosis, treatment, prognosis and genetic counseling of this disease.

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