1.Research progress on polymorphism of vitamin D and its receptor gene and susceptibility to bone tuberculosis.
Xin-Feng LIU ; Yan-Jun ZHANG ; Jun-Jie LI ; Jun YANG ; Hong-Jing TIAN
China Journal of Orthopaedics and Traumatology 2025;38(2):211-216
Bone tuberculosis is one of the main lesions of extrapulmonary tuberculosis, and the affected site shows local pain and limited movement, and the severe patients face a higher risk of teratogenicity and disability. Especially in the context of the increasing spread of multidrug-resistant tuberculosis, it is particularly urgent to seek innovative treatment options. In recent years, vitamin D plays an important role in the prevention and treatment of bone tuberculosis, and the mechanism of action has been continuously explored. At the same time, vitamin D receptor gene polymorphism has also been found to be closely related to the susceptibility and risk of bone tuberculosis. This article reviewed the relationship between vitamin D and its receptor gene polymorphisms and the susceptibility to bone tuberculosis. It was found that vitamin D deficiency increased the susceptibility to bone tuberculosis in both adults and children, and multiple genotypes of vitamin D receptor had an effect on the susceptibility to bone tuberculosis, especially FokⅠ genotype. It may also be one of the reasons for the increase in the number of bone tuberculosis. Through the study of the relationship between vitamin D and its receptor gene polymorphism and the susceptibility to bone tuberculosis, some factors inducing bone tuberculosis can be avoided, and related new drugs can be more targeted, such as vitamin D supplements, gene receptor related antagonists, etc. To provide more systematic and targeted strategies for the prevention and treatment of bone tuberculosis.
Humans
;
Receptors, Calcitriol/genetics*
;
Genetic Predisposition to Disease
;
Polymorphism, Genetic
;
Vitamin D/metabolism*
;
Tuberculosis, Osteoarticular/metabolism*
2.HOTAIR rs920778 single nucleotide polymorphism is associated with breast cancer susceptibility and HER2-targeted therapy resistance in Chinese population.
Mingliang ZHANG ; Feifan SUN ; Zhuoqi HAN ; Yue GAO ; Yi LUO
Journal of Southern Medical University 2025;45(10):2270-2276
OBJECTIVES:
To investigate the association of HOTAIR gene rs920778 single nucleotide polymorphism (SNP) with breast cancer susceptibility and response to HER2-targeted therapy in a Chinese population.
METHODS:
TaqMan probe-based real-time quantitative PCR was used for genotyping of the rs920778 locus (chr12:54,376,218) in peripheral blood genomic DNA from 287 breast cancer patients and 260 healthy individuals from northern Anhui Province. The genotype (GG, GT and TT) and allele (G/T) distribution frequencies were compared between the two groups to evaluate their association with breast cancer risk. Multivariate logistic regression analysis was conducted to assess the relationship between SNP at this locus and aggressive clinicopathological features (including tumor size, lymph node metastasis, ER/PR/HER2 status, and molecular subtypes) of breast cancer. For the HER2-positive subgroup, the association between rs920778 genotype and responses to dual-targeted therapy (trastuzumab [6 mg/kg q3w]+pertuzumab [420 mg q3w] + docetaxel [75 mg/m²]) was analyzed. The primary endpoints included pathological complete response rate (pCR), objective response rate (ORR), and progression-free survival (PFS).
RESULTS:
The TT genotype of rs920778 was associated with a significantly increased breast cancer susceptibility (OR=1.54, 95% CI: 1.09-2.19; P=0.017), an advanced tumor stage (P<0.001), lymph node metastasis (P<0.001), and the triple-negative subtype (P<0.001). In HER2-positive patients, TT genotype carriers had a markedly reduced objective response rate to dual HER2-targeted therapy (33.3% vs 89.3%, P=0.001) and a lower pathological complete response rate after neoadjuvant therapy (P=0.018).
CONCLUSIONS
The TT genotype of HOTAIR rs920778 serves as an independent risk factor for breast cancer susceptibility and aggressive progression in Chinese population and may predict the resistance to HER2-targeted therapies, suggesting its potential as a prognostic biomarker for precision oncology.
Adult
;
Aged
;
Female
;
Humans
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Middle Aged
;
Breast Neoplasms/drug therapy*
;
Case-Control Studies
;
China
;
Drug Resistance, Neoplasm/genetics*
;
Genetic Predisposition to Disease
;
Genotype
;
Polymorphism, Single Nucleotide
;
Receptor, ErbB-2
;
RNA, Long Noncoding/genetics*
;
East Asian People/genetics*
3.Genetic Etiology Link to Brain Function Underlying ADHD Symptoms and its Interaction with Sleep Disturbance: An ABCD Study.
Aichen FENG ; Dongmei ZHI ; Zening FU ; Shan YU ; Na LUO ; Vince CALHOUN ; Jing SUI
Neuroscience Bulletin 2025;41(6):1041-1053
Attention deficit hyperactivity disorder (ADHD), a prevalent neurodevelopmental disorder influenced by both genetic and environmental factors, remains poorly understood regarding how its polygenic risk score (PRS) impacts functional networks and symptomology. This study capitalized on data from 11,430 children in the Adolescent Brain Cognitive Development study to explore the interplay between PRSADHD, brain function, and behavioral problems, along with their interactive effects. The results showed that children with a higher PRSADHD exhibited more severe attention deficits and rule-breaking problems, and experienced sleep disturbances, particularly in initiating and maintaining sleep. We also identified the central executive network, default mode network, and sensory-motor network as the functional networks most associated with PRS and symptoms in ADHD cases, with potential mediating roles. Particularly, the impact of PRSADHD was enhanced in children experiencing heightened sleep disturbances, emphasizing the need for early intervention in sleep issues to potentially mitigate subsequent ADHD symptoms.
Humans
;
Attention Deficit Disorder with Hyperactivity/physiopathology*
;
Male
;
Female
;
Sleep Wake Disorders/physiopathology*
;
Adolescent
;
Child
;
Brain/diagnostic imaging*
;
Multifactorial Inheritance
;
Genetic Predisposition to Disease
4.Role and mechanisms of histone methylation in osteogenic/odontogenic differentiation of dental mesenchymal stem cells.
International Journal of Oral Science 2025;17(1):24-24
Dental mesenchymal stem cells (DMSCs) are pivotal for tooth development and periodontal tissue health and play an important role in tissue engineering and regenerative medicine because of their multidirectional differentiation potential and self-renewal ability. The cellular microenvironment regulates the fate of stem cells and can be modified using various optimization techniques. These methods can influence the cellular microenvironment, activate disparate signaling pathways, and induce different biological effects. "Epigenetic regulation" refers to the process of influencing gene expression and regulating cell fate without altering DNA sequences, such as histone methylation. Histone methylation modifications regulate pivotal transcription factors governing DMSCs differentiation into osteo-/odontogenic lineages. The most important sites of histone methylation in tooth organization were found to be H3K4, H3K9, and H3K27. Histone methylation affects gene expression and regulates stem cell differentiation by maintaining a delicate balance between major trimethylation sites, generating distinct chromatin structures associated with specific downstream transcriptional states. Several crucial signaling pathways associated with osteogenic differentiation are susceptible to modulation via histone methylation modifications. A deeper understanding of the regulatory mechanisms governing histone methylation modifications in osteo-/odontogenic differentiation and immune-inflammatory responses of DMSCs will facilitate further investigation of the epigenetic regulation of histone methylation in DMSC-mediated tissue regeneration and inflammation. Here is a concise overview of the pivotal functions of epigenetic histone methylation at H3K4, H3K9, and H3K27 in the regulation of osteo-/odontogenic differentiation and renewal of DMSCs in both non-inflammatory and inflammatory microenvironments. This review summarizes the current research on these processes in the context of tissue regeneration and therapeutic interventions.
Mesenchymal Stem Cells/physiology*
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Humans
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Osteogenesis/genetics*
;
Histones/metabolism*
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Cell Differentiation/physiology*
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Methylation
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Odontogenesis/genetics*
;
Epigenesis, Genetic
5.NUP62 alleviates senescence and promotes the stemness of human dental pulp stem cells via NSD2-dependent epigenetic reprogramming.
Xiping WANG ; Li WANG ; Linxi ZHOU ; Lu CHEN ; Jiayi SHI ; Jing GE ; Sha TIAN ; Zihan YANG ; Yuqiong ZHOU ; Qihao YU ; Jiacheng JIN ; Chen DING ; Yihuai PAN ; Duohong ZOU
International Journal of Oral Science 2025;17(1):34-34
Stem cells play a crucial role in maintaining tissue regenerative capacity and homeostasis. However, mechanisms associated with stem cell senescence require further investigation. In this study, we conducted a proteomic analysis of human dental pulp stem cells (HDPSCs) obtained from individuals of various ages. Our findings showed that the expression of NUP62 was decreased in aged HDPSCs. We discovered that NUP62 alleviated senescence-associated phenotypes and enhanced differentiation potential both in vitro and in vivo. Conversely, the knocking down of NUP62 expression aggravated the senescence-associated phenotypes and impaired the proliferation and migration capacity of HDPSCs. Through RNA-sequence and decoding the epigenomic landscapes remodeled induced by NUP62 overexpression, we found that NUP62 helps alleviate senescence in HDPSCs by enhancing the nuclear transport of the transcription factor E2F1. This, in turn, stimulates the transcription of the epigenetic enzyme NSD2. Finally, the overexpression of NUP62 influences the H3K36me2 and H3K36me3 modifications of anti-aging genes (HMGA1, HMGA2, and SIRT6). Our results demonstrated that NUP62 regulates the fate of HDPSCs via NSD2-dependent epigenetic reprogramming.
Humans
;
Dental Pulp/cytology*
;
Nuclear Pore Complex Proteins/genetics*
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Cellular Senescence/genetics*
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Stem Cells/metabolism*
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Epigenesis, Genetic
;
Cell Proliferation
;
Cell Differentiation
;
Histone-Lysine N-Methyltransferase/metabolism*
;
Cells, Cultured
;
Cellular Reprogramming
;
Cell Movement
;
Proteomics
6.Family communication of genetic risk: What is it and why does it matter?
Acta Medica Philippina 2025;59(8):7-15
Inherited conditions have implications not only for the individual affected but for the entire family. It is in this context that family communication of genetic risk information is important to understand. This paper aims to provide an overview of the construct of family communication of genetic risk and provide implications for healthcare providers. A search of relevant literature was done with electronic databases including PubMed, CINAHL, Embase, Scopus, and Web of Science. The findings from the literature were organized based on the Family Communication of Genetic Risk (FCGR) conceptual framework which highlights the attributes of the family communication of genetic risk process including influential factors, communication strategy, communication occurrence, and outcomes of communication. Healthcare providers need to understand how individuals share genetic risk with their family members so that appropriate support and interventions can be provided to them. This is especially important across countries, including the Philippines, as genetic services and testing move beyond the traditional medical genetics clinic to other medical specialties, a development where we would expect an increase in individuals and family members undergoing genetic evaluation and testing.
Communication ; Family ; Genetic Predisposition To Disease ; Genetic Testing
8.Case of stiff skin syndrome treated with acupuncture and cupping therapy.
Chinese Acupuncture & Moxibustion 2025;45(7):982-984
Stiff skin syndrome is a very rare non-inflammatory reactive skin disease, characterized by skin sclerosis and limited joint mobility. The paper reports one case of child with stiff skin syndrome and treated with combined therapy of acupuncture and cupping. Acupuncture was used at the lateral line 1 of vertex (MS8) on the right side, Jiaji (EX-B2) of L2 to L4, Huantiao (GB30), ashi point, Juliao (GB29), Fengshi (GB31), Weizhong (BL40), and etc. on the left side. After deqi, the electrodes of KWD-808Ⅰimpulse electronic therapeutic device were attached to Jiaji (EX-B2) of L4 and Huantiao (GB30), Fengshi (GB31) and Yanglingquan (GB34) on the left side respectively, at disperse-dense wave, a frequency of 2 Hz/100 Hz, and a current of 2 mA. The needles were retained for 20 min. Acupuncture was operated once every 2 days, 3 interventions a week. When acupuncture was completed in each intervention, moving cupping was followed till the skin turned to be red, along the distribution of the governor vessel, foot-shaoyang gallbladder meridian and foot-taiyang bladder meridian on the left side, of the lumbar region and leg. Moving cupping was delivered once every 2 days, 3 times a week. Once a week, after moving cupping, the cups were retained on the areas with skin stiffness for 8 min to 10 min. One course of the combined therapy of acupuncture and cupping was composed of 6 treatments. After 2 courses of treatment, the skin stiffness on the left buttock region and the lateral side of the lower limb was ameliorated, the swelling on the left lower limb relieved and the walking improved; and the patient could walk continuously for 2 000 m. The combined therapy of acupuncture and cupping provides a new idea for the clinical treatment of stiff skin syndrome.
Child
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Humans
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Acupuncture Points
;
Acupuncture Therapy
;
Contracture/therapy*
;
Cupping Therapy
;
Skin Diseases, Genetic/therapy*
9.Effect of electroacupuncture at "Hegu" (LI4) and "Taichong" (LR3) on DNA methylation of the SLC6A4 gene promoter in the hippocampus of depressed rats.
Xi ZHANG ; Shengyong SU ; Xin LI ; Tian WANG
Chinese Acupuncture & Moxibustion 2025;45(11):1609-1616
OBJECTIVE:
To observe the effect of electroacupuncture (EA) at "Hegu" (LI4) and "Taichong" (LR3) on DNA methylation of the solute carrier family 6 member 4 (SLC6A4) gene promoter region in the hippocampus of depressed rats, and to explore the potential antidepressant mechanism of EA.
METHODS:
Thirty male Sprague-Dawley rats were randomly divided into a blank group, a model group, a medication group, a 5-Azacytidine (5-AZA) group, and an EA group, 6 rats in each group. Depression models were established in the model group, the medication group, the 5-AZA group, and the EA group using chronic unpredictable mild stress (CUMS) combined with solitary housing. The medication group was treated with intragastric administration of fluoxetine hydrochloride capsules; the 5-AZA group was treated with intraperitoneal injection of 5-AZA; the EA group was treated with EA at bilateral "Hegu" (LI4) and "Taichong" (LR3), with disperse-dense wave, frequency of 2 Hz/100 Hz, and intensity of 1-1.2 mA, 20 min each session. All the treatment was given in three groups once daily for 21 consecutive days. Behavioral changes were evaluated by sucrose preference test, open field test, and novelty-suppressed feeding test. Serum levels of serotonin (5-HT), dopamine (DA), and norepinephrine (NE) were measured by ELISA. The expression of SLC6A4 and 5-HT1AR protein and mRNA in hippocampus was detected by Western blot and real-time quantitative PCR, respectively. DNA methylation status of the SLC6A4 promoter region in hippocampal tissue was analyzed by bisulfite sequencing PCR (BSP).
RESULTS:
Compared with the blank group, the model group showed decreased sucrose preference, reduced total locomotor distance, and prolonged latency to feeding (P<0.05), decreased serum 5-HT, DA, and NE levels (P<0.05), downregulated hippocampal SLC6A4 and 5-HT1AR protein and mRNA expression (P<0.05), and increased CpG site methylation rate of the SLC6A4 promoter region (P<0.05). Compared with the model group, the medication group, the 5-AZA group, and the EA group exhibited increased sucrose preference, increased total locomotor distance, shortened latency to feeding (P<0.05), elevated serum 5-HT, DA, and NE levels (P<0.05), upregulated hippocampal SLC6A4 and 5-HT1AR protein and mRNA expression (P<0.05), and reduced CpG site methylation rate of the SLC6A4 promoter (P<0.05). Compared with the medication group and the 5-AZA group, the EA group showed higher sucrose preference, greater total locomotor distance, shorter latency to feeding (P<0.05), and increased serum DA and NE levels (P<0.05).
CONCLUSION
EA could improve depressive behaviors in depressed rat models. The underlying mechanism may involve inhibition of SLC6A4 hypermethylation in the hippocampus on the serotonergic system, upregulation of SLC6A4 and 5-HT1AR protein and mRNA expression, and elevation of monoamine neurotransmitters such as 5-HT.
Animals
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Electroacupuncture
;
Male
;
Hippocampus/metabolism*
;
Rats, Sprague-Dawley
;
Rats
;
Acupuncture Points
;
DNA Methylation
;
Depression/metabolism*
;
Promoter Regions, Genetic
;
Serotonin Plasma Membrane Transport Proteins/metabolism*
;
Humans
10.Tapping with plum-blossom needle combined with sulfur ointment and local irradiation for primary cutaneous amyloidosis: a case report.
Fasen DENG ; Xiao CHEN ; Weijuan ZHENG ; Ziyang HE ; Xinsheng CHEN
Chinese Acupuncture & Moxibustion 2025;45(12):1800-1802
The paper reports one case of primary cutaneous amyloidosis (PCA) treated by tapping with plum-blossom needle combined with sulfur ointment and local irradiation. PCA in this case was manifested as generalized erythema, papules, plaques, lichenification, and severe pruritus. In treatment, tapping with plum-blossom needle was delivered at typical lesions to induce local congestion, redness, and minimal bleeding. After cleaned with sterile gauze for 10 s, 25% sulfur ointment was evenly applied, followed by local irradiation with a TDP lamp for 15 min. This session was repeated twice a week. In 1 month of treatment, the lesions turned flat and the skin was soft as the normal, with pigmentation and mild pruritus left. In 3 months of follow-up, no papules recurred, and mild pruritus presented occasionally.
Humans
;
Ointments/administration & dosage*
;
Sulfur/administration & dosage*
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Skin Diseases, Genetic/radiotherapy*
;
Middle Aged
;
Amyloidosis, Familial/radiotherapy*
;
Male
;
Acupuncture Therapy/instrumentation*
;
Female
;
Combined Modality Therapy


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