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排序方式: 共有106条查询结果,搜索用时 15 毫秒
1.
Chatchatee P Srichomthong C Chewatavorn A Shotelersuk V 《International journal of molecular medicine》2003,12(6):939-941
Wiskott-Aldrich syndrome (WAS) is an X-linked recessive disorder characterized by microthrombocytopenia, eczema, immunodeficiency, and susceptibility to lymphoid malignancy. Loss-of-function mutations in WAS gene have been identified to cause disorders with platelet defects including WAS and X-linked thrombocytopenia. Mutations anticipated to yield truncated or no protein have been associated with the more severe presentations of WAS. Activating mutations in WAS gene result in an entirely different phenotype, an X-linked severe congenital neutropenia. We describe a Thai family with classic WAS. The proband, a one-year-old boy presented with recurrent mucous bloody diarrhea, recurrent otitis media, chronic eczema, thrombocytopenia, and small platelet sizes. The patient's older brother who also had persistent thrombocytopenia died at the age of seven months from severe pneumonia. Immunoblot analysis demonstrated that the proband's cells lacked WAS protein expression. Mutation analysis of the proband and his mother for the entire coding region of WAS identified a novel type of mutation, a termination codon mutation, X503R. The change is expected to result in an elongated mRNA that would code for a WASP of 581 amino acid residues instead of the normal 502 residues. Because of the absence of WASP expression, we speculate that the termination codon mutation causes reduced mRNA stability. Our findings supported that WAS mutations resulted in no protein are associated with a severe phenotype of WAS. 相似文献
2.
Thivaratana Sinthuwiwat Chupong Ittiwut Thantrira Porntaveetus Vorasuk Shotelersuk 《American journal of medical genetics. Part A》2019,179(5):758-761
Female‐restricted syndromic intellectual disability (ID) is a neurodevelopmental disorder with developmental delay (DD)/ID, facial dysmorphism, and diverse congenital anomalies comprising heart defects, anal anomalies, choanal atresia, postaxial polydactyly, scoliosis, and brain abnormalities. Loss‐of‐function mutations in the USP9X gene inherited as X‐linked dominance were identified as its etiology in females of different ethnic groups. Here, we report a 15‐year‐old Thai girl harboring a novel de novo heterozygous one‐base pair deletion (c.3508delG, p.Val1170TrpfsX9) in exon 23 of USP9X. Her profound DD, dysmorphic face including attached earlobes, short stature, and congenital malformations including s‐shaped thoracolumbar scoliosis, hip dislocation, and generalized brain atrophy shared common characteristics of X‐linked syndromic ID. We have observed severely malformed oro‐dental organs and a choledochal cyst, which have never been reported. Our study presents the first patient from Thailand expanding the phenotypic and mutational spectra of the syndrome. 相似文献
3.
Shotelersuk V Punyashthiti R Srivuthana S Wacharasindhu S 《American journal of medical genetics》2002,110(4):384-390
We describe six Thai children with the Kabuki syndrome. Monozygotic twin boys discordant for the syndrome were encountered in a family. The affected twin had all five cardinal features of the syndrome, whereas the unaffected twin had none of them. The presence of monozygotic twins discordant for the syndrome argues against a single gene origin of the disorder, but by no means excludes it. In another family, a mother had a facial appearance similar to her affected son. Lower lip pits with or without symmetrical lower lip nodules were present in three of the six children, and pilonidal sinus was seen in five children. These clinical manifestations were much more common than previously described. Other inconsistent findings included early eruption of the lower central incisors, a skin defect of the head, and transient hyperthyrotropinemia in infancy. 相似文献
4.
Pimpayao Sodsai Chupong Ittiwut Vichaya Ruenjaiman Rungnapa Ittiwut Watsamon Jantarabenjakul Kanya Suphapeetiporn Vorasuk Shotelersuk Nattiya Hirankarn 《Emerging infectious diseases》2022,28(11):2350
A heterozygous nonsense variant in the TIGIT gene was identified in a patient in Thailand who had severe COVID-19, resulting in lower TIGIT expression in T cells. The patient’s T cells produced higher levels of cytokines upon stimulation. This mutation causes less-controlled immune responses, which might contribute to COVID-19 severity. 相似文献
5.
Mutations in the p63 gene (TP63) underlie several monogenic malformation syndromes manifesting cleft lip with or without cleft palate (CL/P). We investigated whether p63 mutations also result in non-syndromic CL/P. Specifically, we performed mutation analysis of the 16 exons of the p63 gene for 100 Thai patients with non-syndromic CL/P. In total, 21 variant sites were identified. All were single nucleotide changes, with six in coding regions, including three novel non-synonymous changes: S90L, R313G, and D564H. The R313G was concluded to be pathogenic on the basis of its amino acid change, evolutionary conservation, its occurrence in a functionally important domain, its predicted damaging function, its de novo occurrence, and its absence in 500 control individuals. Our data strongly suggest, for the first time, a causative role of a heterozygous mutation in the p63 gene in non-syndromic CL/P, highlighting the wide phenotypic spectrum of p63 gene mutations. 相似文献
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A novel germline mutation, 1793delG, of the MEN1 gene underlying multiple endocrine neoplasia type 1
Snabboon T Plengpanich W Siriwong S Wisedopas N Suwanwalaikorn S Khovidhunkit W Shotelersuk V 《Japanese journal of clinical oncology》2005,35(5):280-282
Pulmonary carcinoids are rare neuroendocrine tumors which comprise 1-2% of all lung tumors. They usually occur sporadically; however, their association with multiple endocrine neoplasia type 1 (MEN1) syndrome has been documented. We report a case of a Thai woman with a pulmonary carcinoid tumor and a null cell pituitary tumor. Her family history was unremarkable for any MEN-related lesions. Genetic testing revealed a novel deletion mutation at exon 10 (1793delG) of the MEN1 gene, resulting in a stop codon 26 amino acids downstream. This mutation is predicted to cause a loss of the second nuclear localization signal of the menin protein. 相似文献
10.
Lertsanguansinchai P Lertbutsayanukul C Shotelersuk K Khorprasert C Rojpornpradit P Chottetanaprasith T Srisuthep A Suriyapee S Jumpangern C Tresukosol D Charoonsantikul C 《International journal of radiation oncology, biology, physics》2004,59(5):641-1431
PURPOSE: Intracavitary brachytherapy plays an important role in the treatment of cervical carcinoma. Previous results have shown controversy between the effect of dose rate on tumor control and the occurrence of complications. We performed a prospective randomized clinical trial to compare the clinical outcomes between low-dose-rate (LDR) and high-dose-rate (HDR) intracavitary brachytherapy for treatment of invasive uterine cervical carcinoma. METHODS AND MATERIALS: A total of 237 patients with previously untreated invasive carcinoma of the uterine cervix treated at King Chulalongkorn Memorial Hospital were randomized between June 1995 and December 2001. Excluding ineligible, incomplete treatment, and incomplete data patients, 109 and 112 patients were in the LDR and HDR groups, respectively. All patients were treated with external beam radiotherapy and LDR or HDR intracavitary brachytherapy using the Chulalongkorn treatment schedule. RESULTS: The median follow-up for the LDR and HDR groups was 40.2 and 37.2 months, respectively. The actuarial 3-year overall and relapse-free survival rate for all patients was 69.6% and 70%, respectively. The 3-year overall survival rate in the LDR and HDR groups was 70.9% and 68.4% (p = 0.75) and the 3-year pelvic control rate was 89.1% and 86.4% (p = 0.51), respectively. The 3-year relapse-free survival rate in both groups was 69.9% (p = 0.35). Most recurrences were distant metastases, especially in Stage IIB and IIIB patients. Grade 3 and 4 complications were found in 2.8% and 7.1% of the LDR and HDR groups (p = 0.23). CONCLUSION: Comparable outcomes were demonstrated between LDR and HDR intracavitary brachytherapy. Concerning patient convenience, the lower number of medical personnel needed, and decreased radiation to health care workers, HDR intracavitary brachytherapy is an alternative to conventional LDR brachytherapy. The high number of distant failure suggests that other modalities such as systemic concurrent or adjuvant chemotherapy might lower this high recurrence, especially in Stage IIB and IIIB. 相似文献