1.Phenotypic heterogeneity and management strategies for two brothers with XIAP deficiency syndrome.
Hui HU ; Shengnan WU ; Kai CHEN ; Jingbo SHAO ; Ting ZHANG ; Yongmei XIAO
Chinese Journal of Medical Genetics 2026;43(2):123-128
OBJECTIVE:
To summarize the clinical features and management of two brothers affected with X-linked inhibitor of apoptosis protein (XIAP) deficiency.
METHODS:
This study retrospectively analyzed the clinical presentations, treatment, and follow-up of two brothers with XIAP deficiency diagnosed at Shanghai Children's Hospital in 2020, and summarized similar cases recorded in databases such as PubMed, Wanfang, Chinese Medical Association Journals, and WIP from January 2006 to November 2024. This study was approved by the Medical Ethics Committee of our hospital (Ethics No.: 2025R128-E01).
RESULTS:
Patient 1 was the younger brother, who presented at 8 years of age with growth retardation, folliculitis, erythema nodosum, and perineal abscess. Sequencing revealed that he has carried a hemizygous c.566T>C (p.Leu189Pro) variant of the XIAP gene, which was inherited from his mother. He was allergic to infliximab treatment and underwent allogeneic stem cell transplantation (HSCT) in January 2021. During a follow-up of 3 years and 10 months post-transplantation, he showed no gastrointestinal symptoms and had a good outcome. Patient 2 was the elder brother, who presented at 10 years and 6 months of age with growth retardation, rash, and anal fistula. Genetic testing revealed the same variant. He was treated with oral azathioprine but did not have regular follow-ups. At 14-years-and-6-months of age, he had developed severe gastrointestinal infection and hemophagocytic lymphohistiocytosis, which was alleviated after treatment with antibiotics, glucocorticoids, immunoglobulin, and rituximab. He is currently being prepared for HSCT. A total of 13 publications were retrieved, which involved 64 patients from 23 families, with 23 different variants identified. The main clinical manifestations included splenomegaly (34 cases, 53.1%), hemophagocytic lymphohistiocytosis (27 cases, 42.2%), and inflammatory bowel disease or colitis (20 cases, 31.8%). There were significant phenotypic differences among patients from the same family. Thirteen patients (20.3%) underwent HSCT, with a survival rate of 61.5%.
CONCLUSION
For male children with early onset, poor treatment response, especially those with unexplained splenomegaly and IBD-like symptoms, early genetic testing is recommended. HSCT is a safe and effective treatment for XIAP deficiency. For patients with developmental delay, early onset, and severe IBD phenotype, early transplantation is recommended.
Humans
;
Male
;
X-Linked Inhibitor of Apoptosis Protein/deficiency*
;
Child
;
Genetic Diseases, X-Linked/therapy*
;
Phenotype
;
Siblings
;
Retrospective Studies
;
Hematopoietic Stem Cell Transplantation
2.Efficacy of acupuncture and moxibustion combined with medication for functional constipation in elderly with yang deficiency and qi stagnation and its effect on emotional disorder.
Chinese Acupuncture & Moxibustion 2025;45(4):442-447
OBJECTIVE:
To observe the clinical efficacy of acupuncture and moxibustion combined with medication in the treatment of functional constipation in elderly with yang deficiency and qi stagnation and its effect on emotional disorder.
METHODS:
A total of 86 elderly patients with functional constipation of yang deficiency and qi stagnation were randomly divided into an acupuncture and moxibustion group (43 cases, 1 case dropped out, 1 case was eliminated) and a medication group (43 cases, 1 case dropped out). The medication group was treated with lactulose oral solution, once a day;in the acupuncture and moxibustion group, on the basis of the treatment in the medication group, acupuncture at intestinal three points (bilateral Tianshu [ST25], Shangjuxu [ST37] and Guanyuan [CV4] were selected, 30 min each time, once every other day) combined with thunder-fire moxibustion (Shenque [CV8] was selected, 30 min each time, once every other day) was given. Both groups were treated for 4 weeks. Before and after treatment, the patient assessment of constipation symptoms (PAC-SYM) score, defecation situation (defecation interval time, defecation time, defecation frequency) and the scores of TCM syndrome, patient assessment of constipation quality of life (PAC-QOL), Pittsburgh sleep quality index (PSQI), self-rating anxiety scale (SAS), self-rating depression scale (SDS) were observed in the two groups. The clinical efficacy and safety of the two groups were evaluated.
RESULTS:
Compared before treatment, after treatment, the PAC-SYM scores, defecation interval time, defecation time, TCM syndrome scores, PAC-QOL scores, SAS scores and SDS scores in both groups were decreased (P<0.05), the defecation frequency was increased (P<0.05) in the two groups; the PSQI score in the acupuncture and moxibustion group was decreased (P<0.05). The PAC-SYM score, defecation interval time, defecation time, TCM syndrome score, PAC-QOL score, PSQI score, SAS score and SDS score after treatment in the acupuncture and moxibustion group were lower than those in the medication group (P<0.05), and the defecation frequency in the acupuncture and moxibustion group was higher than that in the medication group (P<0.05). The total effective rate of the acupuncture and moxibustion group was 92.7% (38/41), which was higher than 73.8% (31/42) in the medication group (P<0.05). The incidence of adverse reactions in the acupuncture and moxibustion group was 2.44% (1/41), while that in the medication group was 4.76% (2/42), there was no significant difference between the two groups (P>0.05).
CONCLUSION
Acupuncture and moxibustion combined with medication could improve the defecation situation, emotional disorder, quality of life in elderly patients with functional constipation of yang deficiency and qi stagnation.
Humans
;
Moxibustion
;
Constipation/drug therapy*
;
Female
;
Aged
;
Male
;
Acupuncture Therapy
;
Treatment Outcome
;
Qi
;
Middle Aged
;
Yang Deficiency/drug therapy*
;
Aged, 80 and over
;
Combined Modality Therapy
;
Acupuncture Points
3.Therapeutic effect of Rendu Tongtiao acupuncture on hyperandrogenism in polycystic ovary syndrome of kidney-yin deficiency induced fire hyperactivity.
Yuane LIU ; Baidan LIAO ; Xian ZHANG ; Chang ZHOU ; Chen CHEN
Chinese Acupuncture & Moxibustion 2025;45(8):1078-1082
OBJECTIVE:
To investigate the clinical therapeutic effect of Rendu Tongtiao acupuncture (acupuncture for regulating and improving the circulation of the conception and governor vessels) on hyperandrogenism (HA) in polycystic ovary syndrome (PCOS) with kidney-yin deficiency induced fire hyperactivity.
METHODS:
A total of 80 PCOS-HA patients were selected and randomly divided into an observation group and a control group, 40 cases in each group. In the control group, ethinylestradiol and cyproterone acetate tablets were administered orally,2 mg each time, once daily and for 21 consecutive days as one menstrual cycle. In the observation group, Rendu Tongtiao acupuncture was delivered at Qihai (CV6), Zhongwan (CV12), Guanyuan (CV4), Zhongji (CV3), Mingmen (GV4), Yaoyangguan (GV3), etc. once daily till ovulation, which was taken as the treatment session of one menstrual cycle. The treatment was completed after 3 menstrual cycles in each group. Before and after treatment, the serum levels of testosterone (T), dihydrotestosterone (DHT), luteinizing hormone (LH), follicle-stimulating hormone (FSH), prolactin (PRL), sex hormone-binding globulin (SHBG), and the scores of acne and hirsutism were compared in the two groups; besides, menstrual recovery rate, ovulation recovery rate, basic body temperature (BBT) biphasic rate and clinical effect were compared between the two groups.
RESULTS:
Compared with those before treatment, the levels of T, DHT, LH and PRL, as well as the scores of acne and hirsutism were reduced in the two groups after treatment (P<0.05), and the levels of FSH and SHBG were increased (P<0.05). After treatment, the levels of T, DHT, LH and PRL, as well as the scores of acne and hirsutism in the observation group were lower than those in the control group (P<0.05); and FSH and SHBG were higher (P<0.05). After treatment, the menstrual recovery rate and ovulation recovery rate, as well as BBT biphasic rate in the observation group increased in comparison with the control group (P<0.05). The total effective rate was 97.5% (39/40) in the observation group, which was higher than 82.4% (33/40) of the control group (P<0.05).
CONCLUSION
Rendu Tongtiao acupuncture can effectively regulate the secretion of hormones, alleviate the clinical symptoms of HA, and accelerate the recovery of menstruation and natural ovulation in patients with PCOS-HA of kidney-yin deficiency induced fire hyperactivity .
Humans
;
Female
;
Polycystic Ovary Syndrome/complications*
;
Acupuncture Therapy
;
Adult
;
Young Adult
;
Hyperandrogenism/blood*
;
Yin Deficiency/therapy*
;
Kidney/physiopathology*
;
Acupuncture Points
;
Testosterone/blood*
;
Luteinizing Hormone/blood*
;
Follicle Stimulating Hormone/blood*
;
Adolescent
4.Clinical efficacy of warming acupuncture combined with western medication for oligoasthenoteratozoospermia of kidney-yang insufficiency and its effects on IL-6 and IL-10 levels in seminal plasma.
Shuo QIU ; Shangjie LIANG ; Chuchu SHEN ; Tengyan JI ; Hao LI ; Hongru ZHANG
Chinese Acupuncture & Moxibustion 2025;45(8):1092-1098
OBJECTIVE:
To observe the clinical efficacy of warming acupuncture combined with western medication for oligoasthenoteratozoospermia of kidney-yang insufficiency and its effects on the levels of interleukin (IL)-6 and IL-10 in seminal plasma.
METHODS:
A total of 60 patients with oligoasthenoteratozoospermia of kidney-yang insufficiency were randomly divided into a combination group and a medication group, with 30 cases in each group. The medication group was treated with levocarnitine oral solution orally, 10 mL once, 3 times a day. On the basis of the treatment in the medication group, warming acupuncture was applied at Baihui (GV20), Guanyuan (CV4) and Mingmen (GV4) in the combination group, once every other day, 3 times a week. Both groups were treated for 12 weeks. Before and after treatment, the TCM syndrome score was observed, the semen routine indexes (the sperm concentration, progressive [PR] sperm motility, PR + non-progressive [NP] sperm motility and sperm malformation rate), the serum sex hormones indexes (follicle-stimulating hormone [FSH], luteinizing hormone [LH], testosterone [T] and estradiol [E2]), as well as the IL-6 and IL-10 levels in seminal plasma were detected, and the clinical efficacy was evaluated after treatment in the two groups.
RESULTS:
After treatment, except for the hyposexuality score in the medication group, the each item scores and total scores of TCM syndrome were decreased compared with those before treatment (P<0.01, P<0.05), the sperm malformation rates, serum FSH and LH levels, IL-6 levels in the seminal plasma were decreased compared with those before treatment (P<0.01, P<0.05), the PR sperm motility, PR + NP sperm motility, serum T levels, IL-10 levels in the seminal plasma were increased compared with those before treatment (P<0.01, P<0.05) in the two groups; the sperm concentration was increased compared with that before treatment in the combination group (P<0.01). After treatment, compared with the medication group, except for the hyposexuality and frequent nocturia scores, the each item scores and total score of TCM syndrome were lower (P<0.01, P<0.05); the sperm concentration, PR sperm motility and PR + NP sperm motility, serum T level, IL-10 level in the seminal plasma were higher (P<0.01, P<0.05); sperm malformation rate, serum FSH and LH levels, IL-6 level in the seminal plasma were lower (P<0.01, P<0.05) in the combination group. The total effective rate was 83.8% (25/30) in the combination group, which was superior to 60.0% (18/30) in the medication group (P<0.05).
CONCLUSION
Warming acupuncture combined with western medication can effectively treat oligoasthenoteratozoospermia of kidney-yang insufficiency, regulate the levels of sex hormones, and its mechanism may be related to the down-regulation of IL-6 level and the up-regulation of IL-10 level in seminal plasma.
Humans
;
Male
;
Interleukin-10/genetics*
;
Interleukin-6/genetics*
;
Adult
;
Semen/metabolism*
;
Acupuncture Therapy
;
Oligospermia/drug therapy*
;
Yang Deficiency/physiopathology*
;
Kidney/physiopathology*
;
Young Adult
;
Asthenozoospermia/drug therapy*
;
Combined Modality Therapy
;
Treatment Outcome
5.Acupoint magnetotherapy as an adjunctive treatment for mild to moderate hypertension with yin deficiency and yang hyperactivity: a randomized controlled trial.
Chinese Acupuncture & Moxibustion 2025;45(12):1711-1716
OBJECTIVE:
To observe the clinical efficacy of acupoint magnetotherapy as an adjunctive treatment for mild to moderate hypertension with yin deficiency and yang hyperactivity.
METHODS:
A total of 66 patients with mild to moderate hypertension of yin deficiency and yang hyperactivity were randomly divided into a magnetotherapy group (33 cases, 3 cases dropped out) and a non-magnetotherapy group (33 cases, 4 cases dropped out). Both groups were given antihypertensive drugs based on their clinical conditions. The magnetotherapy group and the non-magnetotherapy group wore surface magnetic therapy bands with or without magnetic poles, respectively, at unilateral Neiguan (PC6) and Waiguan (TE5). Intervention was administered once daily, 8 h each time, for a continuous period of 4 weeks. Traditional Chinese Medicine (TCM) syndrome score, Du's hypertension quality of life (QOL) scale score, office blood pressure, and 24-hour ambulatory blood pressure were assessed before and after the intervention, and the clinical efficacy was evaluated after intervention.
RESULTS:
After the intervention, both groups showed reductions in TCM syndrome scores, office systolic blood pressure (SBP), and diastolic blood pressure (DBP) compared with those before intervention (P<0.001), and their Du's QOL scores increased (P<0.001). The magnetotherapy group had lower TCM syndrome score and office SBP and DBP than those in the non-magnetotherapy group (P<0.001), while Du's QOL score was higher (P<0.001). After the intervention, all 24-hour ambulatory blood pressure indexes in the magnetotherapy group were reduced compared with those before intervention (P<0.05); in the non-magnetotherapy group, 24-hour average diastolic blood pressure (24hDBP), nighttime average systolic blood pressure (nSBP), and nighttime average diastolic blood pressure (nDBP) were reduced (P<0.05). The 24-hour average systolic blood pressure (24hSBP), 24hDBP, daytime average systolic blood pressure (dSBP), daytime average diastolic blood pressure (dDBP), and nSBP after intervention in the magnetotherapy group were lower than those in the non-magnetotherapy group (P<0.05). The total effective rate in the magnetotherapy group was 93.3% (28/30), which was higher than 75.9% (22/29) in the non-magnetotherapy group (P<0.05).
CONCLUSION
Acupoint magnetotherapy as an adjunctive treatment for mild to moderate hypertension with yin deficiency and yang hyperactivity could effectively alleviate clinical symptoms and TCM syndromes, improve quality of life, and reduce blood pressure level.
Humans
;
Male
;
Female
;
Middle Aged
;
Acupuncture Points
;
Hypertension/physiopathology*
;
Adult
;
Yin Deficiency/physiopathology*
;
Aged
;
Blood Pressure
;
Magnetic Field Therapy
;
Acupuncture Therapy
;
Treatment Outcome
;
Combined Modality Therapy
6.Research progress in traditional Chinese medicine treatment of kidney-Yang deficiency syndrome by regulating neuro-endocrine-immune system.
Xiao YANG ; Jia-Geng GUO ; Yu DUAN ; Zhen-Dong QIU ; Min-Qi CHEN ; Wei WEI ; Xiao-Tao HOU ; Er-Wei HAO ; Jia-Gang DENG
China Journal of Chinese Materia Medica 2025;50(15):4153-4165
Kidney-Yang deficiency syndrome is a common geriatric disease that underlies chronic conditions such as diabetic nephropathy, chronic kidney disease, and osteoporosis. As age progresses, the kidney-Yang deficiency syndrome showcases increasingly pronounced manifestations, emerging as a key factor in the comorbidities experienced by elderly patients and affecting their quality of life and overall health status. Traditional Chinese medicine(TCM) has been extensively utilized in the treatment of kidney-Yang deficiency syndrome, with Epimedii Folium, Cinnamomi Cortex, and Lycii Fructus widely used in clinical settings. Despite the complexity of the molecular mechanisms involved in treating kidney-Yang deficiency syndrome, the potential therapeutic value of TCM remains compelling. Delving into the mechanisms of TCM treatment of kidney-Yang deficiency syndrome by regulating the neuro-endocrine-immune system can provide a scientific basis for targeted treatments of this syndrome and lay a foundation for the modernization of TCM. The pathophysiology of kidney-Yang deficiency syndrome involves multiple systems, including the interaction of the neuro-endocrine-immune system, the decline in renal function, the intensification of oxidative stress responses, and energy metabolism disorders. Understanding these mechanisms and their interrelationships can help untangle the etiology of kidney-Yang deficiency syndrome, aiding clinicians in making more precise diagnoses and treatments. Furthermore, the research on the specific applications of TCM in research on these pathological mechanisms can enhance the international recognition and status of TCM, enabling it to exert a greater global influence.
Humans
;
Yang Deficiency/physiopathology*
;
Drugs, Chinese Herbal/therapeutic use*
;
Medicine, Chinese Traditional
;
Kidney Diseases/physiopathology*
;
Neurosecretory Systems/physiopathology*
;
Animals
;
Kidney/physiopathology*
;
Endocrine System/physiopathology*
;
Immune System/physiopathology*
7.Analysis of gene expression in synovial fluid and blood of patients with knee osteoarthritis of Yang deficiency and blood stasis type.
Hao-Tian HUA ; Zhong-Yi ZHANG ; Zhao-Kai JIN ; Peng-Qiang LOU ; Zhuo MENG ; An-Qi ZHANG ; Yang ZHANG ; Pei-Jian TONG
China Journal of Orthopaedics and Traumatology 2025;38(8):792-799
OBJECTIVE:
To reveal the molecular basis of knee osteoarthritis (KOA) with Yang deficiency and blood stasis syndrome by analyzing the gene expression profiles in synovial fluid and blood of KOA patients with this syndrome.
METHODS:
A total of 80 KOA patients were recruited from October 2022 to June 2024, including 40 cases in the non-Yang deficiency and blood stasis group (27 males and 13 females), with an average age of (61.75±3.45) years old;and 40 cases in the Yang deficiency and blood stasis group (22 males and 18 females), with an average age of (62.00±2.76) years old. The levels of body mass index (BMI), high-density lipoprotein (HDL), low-density lipoprotein (LDL), fibrinogen, total cholesterol, and D-dimer were recorded and summarized. Blood and synovial fluid samples from patients were collected for gene expression profile microarray sequencing, and then PCR and immunohistochemistry were used for clinical verification on the patients' synovial fluid and cartilage samples.
RESULTS:
Logistic regression analysis showed that compared with KOA patients with non-Yang deficiency and blood stasis syndrome, those with Yang deficiency and blood stasis syndrome had increased BMI, LDL, fibrinogen, total cholesterol, and D-dimer, and decreased HDL, with a clear correlation between the two groups. There were 562 differential genes in the blood, among which 322 were up-regulated and 240 were down-regulated;755 differential genes were found in the synovial fluid, with 350 up-regulated and 405 down-regulated. KEGG signaling pathway analysis of synovial fluid revealed changes in lipid metabolism-related pathways, including cholesterol metabolism, fatty acid metabolism, and PPARG signaling pathway. Analysis of the involved differential genes identified 6 genes in synovial fluid that were closely related to lipid metabolism, namely LRP1, LPL, ACOT6, TM6SF2, DGKK, and PPARG. Subsequently, PCR and immunohistochemical verification were performed using synovial fluid and cartilage samples, and the results were consistent with those of microarray sequencing.
CONCLUSION
This study explores the clinical and genomic correlation between traditional Chinese medicine syndromes and knee osteoarthritis from the perspective of lipid metabolism, and proves that abnormal lipid metabolism is closely related to KOA with Yang deficiency and blood stasis syndrome from both clinical and basic aspects.
Humans
;
Male
;
Female
;
Middle Aged
;
Synovial Fluid/metabolism*
;
Osteoarthritis, Knee/metabolism*
;
Yang Deficiency/complications*
;
Aged
8.Two cases of creatine deficiency syndrome caused by GAMT gene mutations and literature review.
Ting-Ting ZHAO ; Zou PAN ; Jian-Min ZHONG ; Hai-Yun TANG ; Fei YIN ; Jing PENG ; Chen CHEN
Chinese Journal of Contemporary Pediatrics 2025;27(3):340-346
OBJECTIVES:
To summarize the clinical manifestations and genetic characteristics of creatine deficiency syndrome (CDS) caused by GAMT gene mutations.
METHODS:
A retrospective analysis was conducted on the clinical and genetic data of two children diagnosed with GAMT deficiency-type CDS at the Children's Medical Center of Xiangya Hospital, Central South University, from December 2020 to December 2024.
RESULTS:
The two patients presented with symptoms in infancy, and both had compound heterozygous mutations in the GAMT gene. Case 1 exhibited seizures and intellectual disability, while Case 2 had intellectual disability and attention-deficit hyperactivity disorder. Magnetic resonance spectroscopy of cranial MRI in both patients indicated reduced creatine peaks. After creatine treatment, seizures in Case 1 were controlled, but both patients continued to experience intellectual disabilities and behavioral issues. As of December 2024, a total of 21 cases have been reported in China (including this study), and 115 cases have been reported abroad. All patients exhibited developmental delay or intellectual disabilities, with 66.9% (91/136) experiencing seizures, 33.8% (46/136) presenting with motor disorders, and 36.8% (50/136) having behavioral problems. Seventy-five percent (102/136) of patients received creatine treatment, leading to significant improvements in seizures and motor disorders, although cognitive improvement was not substantial.
CONCLUSIONS
GAMT deficiency-type CDS is rare and presents with nonspecific clinical features. Timely diagnosis facilitates targeted treatment, which can partially improve prognosis.
Child
;
Female
;
Humans
;
Male
;
Creatine/deficiency*
;
Guanidinoacetate N-Methyltransferase/deficiency*
;
Intellectual Disability/genetics*
;
Mutation
;
Retrospective Studies
;
Rhabdomyolysis/genetics*
;
Language Development Disorders
;
Movement Disorders/congenital*
9.The Expression and Clinical Significance of TCP1 in Newly Diagnosed Acute Myeloid Leukemia Patients.
Jia-Jia LI ; Yan-Ping WU ; Lin LIU ; Meng-Meng ZHANG ; Meng WANG ; Ping-Ping ZHANG ; Feng ZHANG
Journal of Experimental Hematology 2025;33(2):339-343
OBJECTIVE:
To detect the expression level of T-complex polypeptide 1 (TCP1) in the bone marrow of newly diagnosed acute myeloid leukemia (AML) patients, and explore its correlation with clinical characteristics and prognosis.
METHODS:
The bone marrow samples from 80 newly diagnosed AML patients and 30 iron deficiency anemia (IDA) patients were collected, and real time fluorescence quantitative PCR was used to detect the expression level of TCP1 . The clinical data of AML patients were collected, and the correlation of TCP1 expression with clinical characteristics and prognosis of patients were analyzed. The impact of TCP1 on overall survival (OS) of AML patients was identified by using Kaplan-Meier curve analysis. Cox regression analysis was used to identify the factors affecting prognosis of AML patients.
RESULTS:
Compared with IDA patients, the expression of TCP1 was significantly increased in AML patients (P < 0.01). The high expression group of TCP1 showed a higher proportion of patients with ≥60 years and non-remission after treatment, more accompanied by TET2 mutation and poor prognosis but shorter OS compared to the low expression group (all P < 0.05). The results of multivariate Cox regression analysis showed that age, chromosomal abnormalities, therapeutic efficacy and TCP1 expression were independent risk factors affecting prognosis of AML patients (all P < 0.05).
CONCLUSION
TCP1 is significantly upregulated in AML patients, and its expression is associated with partial clinical features and poor prognosis. It can serve as a prognostic indicator and potential therapeutic target for AML patients.
Gene Expression Regulation, Leukemic
;
Leukemia, Myeloid, Acute/metabolism*
;
Humans
;
Gene Expression Profiling
;
Bone Marrow/metabolism*
;
Anemia, Iron-Deficiency/metabolism*
;
Polymerase Chain Reaction
;
Prognosis
;
Kaplan-Meier Estimate
;
Proportional Hazards Models
;
Multivariate Analysis
;
Risk Factors
;
Chaperonin Containing TCP-1
10.The Effect of p.Thr241Asn and p.Cys389Gly Mutations on Coagulation Factor VII Structure and Function.
Journal of Experimental Hematology 2025;33(3):853-857
OBJECTIVE:
To identify F7 gene mutations in one pedigree with congenital coagulation factor VII (FVII) deficiency and explore the effect of F7 gene mutations on the structure and function of FVII.
METHODS:
Prothrombin time (PT) and activated partial thromboplastin time (APTT) were measured based on the one-stage assay, and PT-based one stage assay was used to detect the activity of FII, V, VII and X. Genomic DNA was extracted from the peripheral blood of family members. The sequences of all the exons and exon-intron boundaries of F7 were amplified by polymerase chain reaction (PCR) using specific primers followed by Sanger sequencing. PolyPhen-2, PROVEAN and Swiss-Pdb Viewer software were used to analyze the effect of mutations on the structure and function of FVII.
RESULTS:
The proband had a prolonged PT (33.8 s) due to low FVII activity (6.6%) and normal APTT, and had a history of epistaxis. The proband's mother and father displayed a slightly prolonged PT (13.2 and 13.9 s, respectively), and their FVII activity was 40.3% and 38.3%, respectively. The compound heterozygous c.722C>A (p.Thr241Asn) in exon 7 and c.1165T>G (p.Cys389Gly) in exon 8 of F7 gene were identified in the proband, and inherited from his father and mother, respectively. The p.Thr241Asn and p.Cys389Gly missense change were likely to have a damaging effect predicted by polyphen-2 and PROVEAN software. In silico modeling analysis showed that there was one hydrogen bond formed between wild-type Thr241 and Val249, two hydrogen bonds formed between mutant Asn241 and Val249 and between mutant Asn241 and Leu242, as well as one hydrogen bond and one disulfide bond formed between wild-type Cys389 and Leu370 and between wild-type Cys389 and Cys375, respectively. The hydrogen bond formed between mutant Gly389 and Leu370 and disulfide bond formed between mutant Gly389 and Cys375 both broke.
CONCLUSIONS
FVII deficiency in this family is caused by p.Thr241Asn and p.Cys389Gly mutation. In silico modeling may be a valuable tool for understanding amino acid residues from variants leading to congenital FVII deficiency.
Humans
;
Factor VII/genetics*
;
Mutation
;
Pedigree
;
Factor VII Deficiency/genetics*
;
Prothrombin Time
;
Partial Thromboplastin Time
;
Male
;
Female

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