With the widespread use of Chinese globally, the number of Chinese learners has been increasing, leading to various grammatical errors among beginners. Additionally, as domestic efforts to develop industrial informati...With the widespread use of Chinese globally, the number of Chinese learners has been increasing, leading to various grammatical errors among beginners. Additionally, as domestic efforts to develop industrial information grow, electronic documents have also proliferated. When dealing with numerous electronic documents and texts written by Chinese beginners, manually written texts often contain hidden grammatical errors, posing a significant challenge to traditional manual proofreading. Correcting these grammatical errors is crucial to ensure fluency and readability. However, certain special types of text grammar or logical errors can have a huge impact, and manually proofreading a large number of texts individually is clearly impractical. Consequently, research on text error correction techniques has garnered significant attention in recent years. The advent and advancement of deep learning have paved the way for sequence-to-sequence learning methods to be extensively applied to the task of text error correction. This paper presents a comprehensive analysis of Chinese text grammar error correction technology, elaborates on its current research status, discusses existing problems, proposes preliminary solutions, and conducts experiments using judicial documents as an example. The aim is to provide a feasible research approach for Chinese text error correction technology.展开更多
46,XY性发育异常(disorders/differences of sex development,DSD)是一组核型为46,XY,染色体、性腺和表型不匹配的先天性疾病,约占所有DSD患者的50%[1-3]。该类疾病表型谱复杂,可从轻度男性化不全到完全女性表型,如尿道下裂、小阴茎、...46,XY性发育异常(disorders/differences of sex development,DSD)是一组核型为46,XY,染色体、性腺和表型不匹配的先天性疾病,约占所有DSD患者的50%[1-3]。该类疾病表型谱复杂,可从轻度男性化不全到完全女性表型,如尿道下裂、小阴茎、隐睾、女性化外生殖器、第二性征不发育等。DSD病因复杂,既包括外源性因素,如母体因素、化学制剂及环境干扰物等;又有内源性因素.展开更多
Background: In disorders of sexual differentiation, sexual development may not conform to the chromosomal structure, thus forming different types of abnormalities. Among these abnormalities is syndrome 46, XX DSD wher...Background: In disorders of sexual differentiation, sexual development may not conform to the chromosomal structure, thus forming different types of abnormalities. Among these abnormalities is syndrome 46, XX DSD where most patients are female phenotype with clitoral hypertrophy that can go to complete masculinization especially in the presence of the SRY gene. Objective: The goal of this work is to demonstrate a relationship between the genotype and the phenotype in five patients karyotype 46, XX with the presence of the SRY gene. Methodology: The study involves five patients referred to the laboratory under suspicion of sexual development anomalies. The diagnosis took place through hormonal and echography examinations, a classic cytogenetic study (Barr chromatin and karyotype) and an amplification of the SRY gene located on the Y chromosome. The resulting PCR products were sent for sequencing. Results: Based on the results of clinical and paraclinical tests carried out it was found clitoral hypertrophy, the presence of clitoris penis for some, presence of normal penis for others. In addition, echography revealed a lack of female internal genitalia (P2, P3), and a presence of testicles (P3, P4, P5). Genetic analysis (chromosomal and molecular) showed a karyotype 46, XX SRY (+) for all patients. New mutations were found c.246 T > A, p.82 Asn82Lys and c.171 G > C, p.57 Gln57His. Conclusion: In our study, we were able to correlate each DSD with karyotype 46, XX to a pathology such as 46, XX DSD testicular, 46, XX DSD with clitoral hypertrophy and ovotestis 46, XX. The next step will undoubtedly be the integration of other molecular techniques (genotyping, FISH, CGH or even the CGH array) to further genetic exploration.展开更多
Mitochondrial dysfunction is proposed to be substantially associated with ageing and ageing-related diseases like Alzheimer's disease(AD). However, it is unclear whether different mouse models with mitochondrialre...Mitochondrial dysfunction is proposed to be substantially associated with ageing and ageing-related diseases like Alzheimer's disease(AD). However, it is unclear whether different mouse models with mitochondrialrelated diseases have similar changes in mitochondrial morphology of the same tissues. Moreover, whether similarities in mitochondrial morphology can be a suitable marker for screening and/or discovering mitochondrial-protective substances remains unknown. Mitochondria morphology in different tissues of a novel mitochondrial outer membrane protein Slc25a46 knockout mouse and a traditional APP_(SWE)/PS1ΔE9 transgenic mouse were examined using transmission electron microscope(TEM). Both young Slc25a46 knockout mice and aged APP_(SWE)/PS1ΔE9 mice models showed similar mitochondrial damage in cerebellum tissues. The results indicated that different mitochondrial-related diseases shared similar alteration and defects in mitochondrial morphology. Furthermore, Lycium ruthenicum Murr. extract, a bioactive food substance with cognition-improving property, could effectively improve muscle strength and increase body weight in the Slc25a46 knockout mice. These findings suggest that mitochondrial morphology defects in mice models, particularly in the mitochondrial compartment, represent a unified and effective marker for screening and validating natural product-derived functional substances with mitochondrial protective properties. It also holds potential application in mitochondrial-impaired senile neurodegenerative diseases, especially in AD.展开更多
目的:分析46,XX睾丸型性腺发育异常患者的遗传和临床资料,为加深对该疾病的认识提供依据。方法:收集2017年1月至2023年1月在南京医科大学第一附属医院生殖中心被诊断为46,XX睾丸型性腺发育异常的患者资料,分析其遗传学和临床资料特征,并...目的:分析46,XX睾丸型性腺发育异常患者的遗传和临床资料,为加深对该疾病的认识提供依据。方法:收集2017年1月至2023年1月在南京医科大学第一附属医院生殖中心被诊断为46,XX睾丸型性腺发育异常的患者资料,分析其遗传学和临床资料特征,并对SRY阳性患者取外周血进行SRY基因染色体定位分析。结果:(1)共26例患者被纳入研究,所有患者染色体核型均为46,XX,且AZFa、b、c区全部缺失。患者身高为(168.3±5.9)cm,体重为(64.0±7.5)kg,BMI为(22.66±2.79)kg/m^(2),左侧睾丸体积(2.53±1.16)ml,右侧睾丸体积:(2.74±1.34)ml。精液量为1.35(0.18~2.78)ml,FSH(36.85±18.01)IU/L,LH(19.71±9.71)IU/L,T(6.08±2.71)nmol/L。3例患者最高学历是大学本科,其余均为本科以下学历。(2)SRY阳性患者20例,SRY阴性患者6例。与SRY阳性患者相比,SRY阴性患者合并有生殖系统发育异常问题概率较高(5/6 vs 3/20,P=0.004),而两组在身高、体重、BMI、生殖激素,睾丸体积等参数差异均无统计学意义。(3)14例SRY基因定位分析显示:13例定位于Xp末端,1例定位于15p末端。结论:46,XX睾丸型性腺发育异常患者在遗传学和临床特征上呈现出一定相似性和异质性,需要寻求更好的方案提高患者的生活质量和生活满意度。展开更多
文摘With the widespread use of Chinese globally, the number of Chinese learners has been increasing, leading to various grammatical errors among beginners. Additionally, as domestic efforts to develop industrial information grow, electronic documents have also proliferated. When dealing with numerous electronic documents and texts written by Chinese beginners, manually written texts often contain hidden grammatical errors, posing a significant challenge to traditional manual proofreading. Correcting these grammatical errors is crucial to ensure fluency and readability. However, certain special types of text grammar or logical errors can have a huge impact, and manually proofreading a large number of texts individually is clearly impractical. Consequently, research on text error correction techniques has garnered significant attention in recent years. The advent and advancement of deep learning have paved the way for sequence-to-sequence learning methods to be extensively applied to the task of text error correction. This paper presents a comprehensive analysis of Chinese text grammar error correction technology, elaborates on its current research status, discusses existing problems, proposes preliminary solutions, and conducts experiments using judicial documents as an example. The aim is to provide a feasible research approach for Chinese text error correction technology.
文摘46,XY性发育异常(disorders/differences of sex development,DSD)是一组核型为46,XY,染色体、性腺和表型不匹配的先天性疾病,约占所有DSD患者的50%[1-3]。该类疾病表型谱复杂,可从轻度男性化不全到完全女性表型,如尿道下裂、小阴茎、隐睾、女性化外生殖器、第二性征不发育等。DSD病因复杂,既包括外源性因素,如母体因素、化学制剂及环境干扰物等;又有内源性因素.
文摘Background: In disorders of sexual differentiation, sexual development may not conform to the chromosomal structure, thus forming different types of abnormalities. Among these abnormalities is syndrome 46, XX DSD where most patients are female phenotype with clitoral hypertrophy that can go to complete masculinization especially in the presence of the SRY gene. Objective: The goal of this work is to demonstrate a relationship between the genotype and the phenotype in five patients karyotype 46, XX with the presence of the SRY gene. Methodology: The study involves five patients referred to the laboratory under suspicion of sexual development anomalies. The diagnosis took place through hormonal and echography examinations, a classic cytogenetic study (Barr chromatin and karyotype) and an amplification of the SRY gene located on the Y chromosome. The resulting PCR products were sent for sequencing. Results: Based on the results of clinical and paraclinical tests carried out it was found clitoral hypertrophy, the presence of clitoris penis for some, presence of normal penis for others. In addition, echography revealed a lack of female internal genitalia (P2, P3), and a presence of testicles (P3, P4, P5). Genetic analysis (chromosomal and molecular) showed a karyotype 46, XX SRY (+) for all patients. New mutations were found c.246 T > A, p.82 Asn82Lys and c.171 G > C, p.57 Gln57His. Conclusion: In our study, we were able to correlate each DSD with karyotype 46, XX to a pathology such as 46, XX DSD testicular, 46, XX DSD with clitoral hypertrophy and ovotestis 46, XX. The next step will undoubtedly be the integration of other molecular techniques (genotyping, FISH, CGH or even the CGH array) to further genetic exploration.
文摘目的 分析46,XX睾丸型性发育异常胎儿的基因型与表型,并进行文献复习。方法 1例超声提示胎儿颈后透明层增厚的孕妇来我院产前诊断中心咨询。因其符合产前诊断指征,遂行胎儿染色体核型检测、胎儿染色体基因芯片检测。以“46,XX男性综合征”、“产前诊断”、“46,XX睾丸型性发育异常”、“prenatal diagnosis”、“46,XX male syndrome”、“46,XX testicular disorder of sex development”为检索词,检索中国知网、万方数据库、PubMed数据库(建库至2023年2月底),选取产前诊断为46,XX睾丸型性发育异常胎儿且临床资料完整的文献进行复习并总结胎儿表型。结果 胎儿染色体核型正常(46,XX),基因芯片提示Yp11.31-p11.2区域拷贝数为1,大小为3299 kb,存在SRY基因,胎儿被诊断为46,XX睾丸型性发育异常。文献检索发现仅报道9例产前诊断为46,XX睾丸型发育异常(SRY基因阳性)胎儿,大部分(70%, 7/10)胎儿孕期无明显异常,其中3/10的胎儿存在结构异常或超声提示NT增厚,其中5/10孕妇存在高龄风险。结论 在产前诊断中,发现46,XX睾丸型性发育异常胎儿是极为罕见的。孕期46,XX睾丸型性发育异常胎儿无明显异常;由于CMA检测的局限性,部分46,XX睾丸型DSD胎儿(SRY基因阴性)会被漏诊,这些因素给产前诊断和遗传咨询带来极大的挑战。
基金supported by National Key R&D Program of China (2018YFD0901101)the Natural Science Foundation of Guangdong Province Research (2019A1515012230)+1 种基金Development Program in Key Areas of Guangdong Province (2019B020210002)the Fundamental Research Funds for the Central Universities (2019KZ01)。
文摘Mitochondrial dysfunction is proposed to be substantially associated with ageing and ageing-related diseases like Alzheimer's disease(AD). However, it is unclear whether different mouse models with mitochondrialrelated diseases have similar changes in mitochondrial morphology of the same tissues. Moreover, whether similarities in mitochondrial morphology can be a suitable marker for screening and/or discovering mitochondrial-protective substances remains unknown. Mitochondria morphology in different tissues of a novel mitochondrial outer membrane protein Slc25a46 knockout mouse and a traditional APP_(SWE)/PS1ΔE9 transgenic mouse were examined using transmission electron microscope(TEM). Both young Slc25a46 knockout mice and aged APP_(SWE)/PS1ΔE9 mice models showed similar mitochondrial damage in cerebellum tissues. The results indicated that different mitochondrial-related diseases shared similar alteration and defects in mitochondrial morphology. Furthermore, Lycium ruthenicum Murr. extract, a bioactive food substance with cognition-improving property, could effectively improve muscle strength and increase body weight in the Slc25a46 knockout mice. These findings suggest that mitochondrial morphology defects in mice models, particularly in the mitochondrial compartment, represent a unified and effective marker for screening and validating natural product-derived functional substances with mitochondrial protective properties. It also holds potential application in mitochondrial-impaired senile neurodegenerative diseases, especially in AD.
文摘目的:分析46,XX睾丸型性腺发育异常患者的遗传和临床资料,为加深对该疾病的认识提供依据。方法:收集2017年1月至2023年1月在南京医科大学第一附属医院生殖中心被诊断为46,XX睾丸型性腺发育异常的患者资料,分析其遗传学和临床资料特征,并对SRY阳性患者取外周血进行SRY基因染色体定位分析。结果:(1)共26例患者被纳入研究,所有患者染色体核型均为46,XX,且AZFa、b、c区全部缺失。患者身高为(168.3±5.9)cm,体重为(64.0±7.5)kg,BMI为(22.66±2.79)kg/m^(2),左侧睾丸体积(2.53±1.16)ml,右侧睾丸体积:(2.74±1.34)ml。精液量为1.35(0.18~2.78)ml,FSH(36.85±18.01)IU/L,LH(19.71±9.71)IU/L,T(6.08±2.71)nmol/L。3例患者最高学历是大学本科,其余均为本科以下学历。(2)SRY阳性患者20例,SRY阴性患者6例。与SRY阳性患者相比,SRY阴性患者合并有生殖系统发育异常问题概率较高(5/6 vs 3/20,P=0.004),而两组在身高、体重、BMI、生殖激素,睾丸体积等参数差异均无统计学意义。(3)14例SRY基因定位分析显示:13例定位于Xp末端,1例定位于15p末端。结论:46,XX睾丸型性腺发育异常患者在遗传学和临床特征上呈现出一定相似性和异质性,需要寻求更好的方案提高患者的生活质量和生活满意度。
