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JOURNAL ARTICLE
Rebecca R Valentino, William J Scotton, Shanu F Roemer, Tammaryn Lashley, Michael G Heckman, Maryam Shoai, Alejandro Martinez-Carrasco, Nicole Tamvaka, Ronald L Walton, Matthew C Baker, Hannah L Macpherson, Raquel Real, Alexandra I Soto-Beasley, Kin Mok, Tamas Revesz, Elizabeth A Christopher, Michael DeTure, William W Seeley, Edward B Lee, Matthew P Frosch, Laura Molina-Porcel, Tamar Gefen, Javier Redding-Ochoa, Bernardino Ghetti, Andrew C Robinson, Christopher Kobylecki, James B Rowe, Thomas G Beach, Andrew F Teich, Julia L Keith, Istvan Bodi, Glenda M Halliday, Marla Gearing, Thomas Arzberger, Christopher M Morris, Charles L White, Naguib Mechawar, Susana Boluda, Ian R MacKenzie, Catriona McLean, Matthew D Cykowski, Shih-Hsiu J Wang, Caroline Graff, Rashed M Nagra, Gabor G Kovacs, Giorgio Giaccone, Manuela Neumann, Lee-Cyn Ang, Agostinho Carvalho, Huw R Morris, Rosa Rademakers, John A Hardy, Dennis W Dickson, Jonathan D Rohrer, Owen A Ross
BACKGROUND: Pick's disease is a rare and predominantly sporadic form of frontotemporal dementia that is classified as a primary tauopathy. Pick's disease is pathologically defined by the presence in the frontal and temporal lobes of Pick bodies, composed of hyperphosphorylated, three-repeat tau protein, encoded by the MAPT gene. MAPT has two distinct haplotypes, H1 and H2; the MAPT H1 haplotype is the major genetic risk factor for four-repeat tauopathies (eg, progressive supranuclear palsy and corticobasal degeneration), and the MAPT H2 haplotype is protective for these disorders...
May 2024: Lancet Neurology
#22
Sabire Gokalp, Asli Inci, Ayse Kilic, Ekin Ozsaydi, Ayse Nur Altun, Fevzi Demir, Filiz Basak Ergin, Mehmet Nuri Ozbek, Ilyas Okur, Fatih Ezgu, Leyla Tumer
OBJECTIVES: The mitochondrial elongation factor Tu (EF-Tu), encoded by the TUFM gene, is a GTPase, which is part of the mitochondrial protein translation mechanism. If it is activated, it delivers the aminoacyl-tRNAs to the mitochondrial ribosome. Here, a patient was described with a homozygous missense variant in the TUFM [c.1016G>A (p.Arg339Gln)] gene. To date, only six patients have been reported with bi-allelic pathogenic variants in TUFM, leading to combined oxidative phosphorylation deficiency 4 (COXPD4) characterized by severe early-onset lactic acidosis, encephalopathy, and cardiomyopathy...
April 18, 2024: Journal of Pediatric Endocrinology & Metabolism: JPEM
#23
JOURNAL ARTICLE
Xiaoxi Liu, Satoshi Koyama, Kohei Tomizuka, Sadaaki Takata, Yuki Ishikawa, Shuji Ito, Shunichi Kosugi, Kunihiko Suzuki, Keiko Hikino, Masaru Koido, Yoshinao Koike, Momoko Horikoshi, Takashi Gakuhari, Shiro Ikegawa, Kochi Matsuda, Yukihide Momozawa, Kaoru Ito, Yoichiro Kamatani, Chikashi Terao
We generated Japanese Encyclopedia of Whole-Genome/Exome Sequencing Library (JEWEL), a high-depth whole-genome sequencing dataset comprising 3256 individuals from across Japan. Analysis of JEWEL revealed genetic characteristics of the Japanese population that were not discernible using microarray data. First, rare variant-based analysis revealed an unprecedented fine-scale genetic structure. Together with population genetics analysis, the present-day Japanese can be decomposed into three ancestral components...
April 19, 2024: Science Advances
#24
JOURNAL ARTICLE
Sven Sandin, Benjamin H K Yip, Weiyao Yin, Lauren A Weiss, Joseph D Dougherty, Stuart Fass, John N Constantino, Zhu Hailin, Tychele N Turner, Natasha Marrus, David H Gutmann, Stephan J Sanders, Benjamin Christoffersson
IMPORTANCE: Autism spectrum disorder (ASD) is a neurodevelopmental disorder more prevalent in males than in females. The cause of ASD is largely genetic, but the association of genetics with the skewed sex ratio is not yet understood. To our knowledge, no large population-based study has provided estimates of heritability by sex. OBJECTIVE: To estimate the sex-specific heritability of ASD. DESIGN, SETTING, AND PARTICIPANTS: This was a population-based, retrospective analysis using national health registers of nontwin siblings and cousins from Sweden born between January 1, 1985, and December 31, 1998, with follow-up to 19 years of age...
April 17, 2024: JAMA Psychiatry
#25
JOURNAL ARTICLE
Josephine Davey-Young, Farah Hasan, Rasangi Tennakoon, Peter Rozik, Henry Moore, Peter Hall, Ecaterina Cozma, Julie Genereaux, Kyle S Hoffman, Patricia P Chan, Todd M Lowe, Christopher J Brandl, Patrick O'Donoghue
Translation fidelity relies on accurate aminoacylation of transfer RNAs (tRNAs) by aminoacyl-tRNA synthetases (AARSs). AARSs specific for alanine (Ala), leucine (Leu), serine, and pyrrolysine do not recognize the anticodon bases. Single nucleotide anticodon variants in their cognate tRNAs can lead to mistranslation. Human genomes include both rare and more common mistranslating tRNA variants. We investigated three rare human tRNALeu variants that mis-incorporate Leu at phenylalanine or tryptophan codons. Expression of each tRNALeu anticodon variant in neuroblastoma cells caused defects in fluorescent protein production without significantly increased cytotoxicity under normal conditions or in the context of proteasome inhibition...
January 2024: RNA Biology
#26
JOURNAL ARTICLE
Dimitra Daskalopoulou, Dimosthenis Chrysikos, Alexandros Samolis, George Tsakotos, Amir Shihada, Maria Piagkou, Theodore Troupis
OBJECTIVE: The subscapular artery vascularizes a substantial region of the thoracic wall, and the significance of its distribution is well depicted in the diversity of reconstructive procedures that rely on its blood supply. The aim of this study is to present an uncommon anatomical variation of the artery and discuss the clinical implications of its presence. CASE REPORT: This case report depicts a rare variant of compression and the kinking of the subscapular artery by the radial nerve on the posterior wall of the axilla that was encountered during dissection of a male cadaver of Greek origin...
March 25, 2024: Acta Medica Academica
#27
JOURNAL ARTICLE
Xinmiao Fan, Tengyu Yang, Xiaoping Lu, Yu Chen, Xiaowei Chen
Treacher Collins syndrome (TCS) is a rare congenital craniofacial disorder, typically inherited as an autosomal dominant condition. Here, we report on a family in which germline mosaicism for TCS was likely present. The proband was diagnosed with TCS based on the typical clinical features and a pathogenic variant TCOF1 (c.4369_4373delAAGAA, p.K1457Efs*12). The mutation was not detected in his parents' peripheral blood DNA samples, suggesting a de novo mutation had occurred in the proband. However, a year later, the proband's mother became pregnant, and the amniotic fluid puncture revealed that the fetus carried the same mutation as the proband...
2024: Science Progress
#28
Liam D Redden, Douglas S M Iaboni, Sarah van der Ende, Mathew Nightingale, Daniel Gaston, Christopher R McMaster, Johane M Robitaille, R Rishi Gupta
PURPOSE: To report a rare clinical finding of preretinal granules associated with atypical familial exudative vitreoretinopathy (FEVR) and perform a review of the literature. OBSERVATIONS: An asymptomatic 18-year-old male was referred for unilateral peripheral avascular retina evaluation in association with presumed FEVR. He was first noted to have white preretinal granules on fundus examination at five years of age. The lesions remained unchanged over the subsequent years...
June 2024: American Journal of Ophthalmology Case Reports
#29
Takuya Hiraide, Taiju Hayashi, Yusuke Ito, Rei Urushibata, Hiroshi Uchida, Ryoichi Kitagata, Hidetoshi Ishigaki, Tsutomu Ogata, Hirotomo Saitsu, Tokiko Fukuda
BACKGROUND: Galloway-Mowat syndrome (GAMOS) is a rare genetic disease characterized by early-onset nephrotic syndrome and microcephaly with central nervous system abnormalities. Pathogenic variants in genes encoding kinase, endopeptidase, and other proteins of small size (KEOPS) complex subunits cause GAMOS. The subunit TPRKB (TP53RK binding protein) has been reported in only two patients with GAMOS with homozygous missense variants. CLINICAL REPORT: Herein, we described a three-year-old male with GAMOS...
2024: Frontiers in Pediatrics
#30
JOURNAL ARTICLE
E Mulazzani, L Böhm, T Christmann, M Krumbholz, T Kümpfel, J Havla
BACKGROUND AND PURPOSE: Cryopyrin-associated periodic syndrome is a rare autoinflammatory disease caused by gain-of-function mutations or variants in the NLRP3 gene. Clinically, patients suffer from a broad spectrum of both systemic and neurological symptoms. The aim of this study was to determine whether systemic inflammation demonstrated by serum amyloid A (SAA) elevation is associated with neuroinflammation assessed by optical coherence tomography (OCT). METHODS: Thirty eyes of 15 patients with NLRP3 low penetrance mutations (PwNLRP3) and 20 eyes of 10 age- and sex-matched healthy controls were examined by spectral-domain OCT as part of routine clinical care...
April 16, 2024: European Journal of Neurology
#31
JOURNAL ARTICLE
Minh Ho, Huynh-Nga Nguyen, Minh Van Hoang, Tien Thuy Thi Bui, Bao-Quoc Vu, Truc Huong Thi Dinh, Hoa Thi My Vo, Diana C Blaydon, Sherif A Eldirany, Christopher G Bunick, Chi-Bao Bui
BACKGROUND: Congenital ichthyosis (CI) is a collective group of rare hereditary skin disorders. Patients present with epidermal scaling, fissuring, chronic inflammation, and increased susceptibility to infections. Recently, there is increased interest in the skin microbiome; therefore, we hypothesized that CI patients likely exhibit an abnormal profile of epidermal microbes because of their various underlying skin barrier defects. Among recruited individuals of Southeast Asian ethnicity, we performed skin meta-genomics (i...
April 16, 2024: Human Genomics
#32
JOURNAL ARTICLE
Hui Zhang, Jian Gao, Hanjun Wang, Mengli Liu, Shuangshuang Lu, Hongen Xu, Wenxue Tang, Guoxi Zheng
OBJECTIVE: Branchio-oto-renal syndrome (BOR, OMIM#113,650) is a rare autosomal dominant disorder that presents with a variety of symptoms, including hearing loss (sensorineural, conductive, or mixed), structural abnormalities affecting the outer, middle, and inner ear, branchial fistulas or cysts, as well as renal abnormalities.This study aims to identify the pathogenic variants by performing genetic testing on a family with Branchio-oto-renal /Branchio-otic (BO, OMIM#602,588) syndrome using whole-exome sequencing, and to explore possible pathogenic mechanisms...
April 16, 2024: BMC Medical Genomics
#33
JOURNAL ARTICLE
Shravan Leonard-Murali, Chetana Bhaskarla, Ghanshyam S Yadav, Sudeep K Maurya, Chenna R Galiveti, Joshua A Tobin, Rachel J Kann, Eishan Ashwat, Patrick S Murphy, Anish B Chakka, Vishal Soman, Paul G Cantalupo, Xinming Zhuo, Gopi Vyas, Dara L Kozak, Lindsey M Kelly, Ed Smith, Uma R Chandran, Yen-Michael S Hsu, Udai S Kammula
Immune checkpoint inhibition has shown success in treating metastatic cutaneous melanoma but has limited efficacy against metastatic uveal melanoma, a rare variant arising from the immune privileged eye. To better understand this resistance, we comprehensively profile 100 human uveal melanoma metastases using clinicogenomics, transcriptomics, and tumor infiltrating lymphocyte potency assessment. We find that over half of these metastases harbor tumor infiltrating lymphocytes with potent autologous tumor specificity, despite low mutational burden and resistance to prior immunotherapies...
April 16, 2024: Nature Communications
#34
JOURNAL ARTICLE
B Cakmak, S Yeral, B Ozcan, E Pariltay, S Ozgul, I Y Simsir, R A Hegele
BACKGROUND: This study aims to show the clinical and biochemical features in patients with severe hypertriglyceridemia (HTG) associated with rare variants in the apolipoprotein A-V (APOA5) gene. MATERIALS AND METHODS: Demographics, blood lipid levels, body mass index (BMI) and APOA5 mutation subtypes were collected from the endocrinology clinic registry and analyzed for a retrospective cohort study of ten patients with severe HTG and APOA5 gene variants. RESULTS: Of the 10 cases, four were female, and six were male...
October 12, 2023: Journal of Clinical Lipidology
#35
JOURNAL ARTICLE
Nada Assaf, Roba El Zibaoui, Carla Monsef, Tania Abi Nassif, Miguel Abboud, Soha Yazbek
Alpha and Beta Thalassemia are autosomal recessive anemias that cause significant morbidity and mortality worldwide, especially in the Middle East and North Africa (MENA) region where carrier rates reach up to 50%. We report the case of two siblings of Palestinian origin born who presented to our tertiary healthcare center for the management of severe transfusion dependent hemolytic anemia. Before presentation to our center, the siblings were screened for a-thalassemia using the Alpha-globin StripAssay. They were found to carry the α2 polyA-1 [AATAAA > AATAAG] mutation in the heterozygous form, which was insufficient to make a diagnosis...
April 16, 2024: Hemoglobin
#36
REVIEW
Jennifer R Brown
Our understanding of risk factors for the development of chronic lymphocytic leukemia (CLL) is still incomplete and includes genetic and environmental factors. CLL is one of the most familial of all cancers, yet common high-penetrance risk alleles have not been identified. Genome-wide association studies have identified many common variants with low relative risks, whereas exome-wide rare variant analysis has implicated ATM in CLL causation. Environmental factors have also been challenging to identify given the limited understanding of the relevant time period of exposure relative to diagnosis, and the inability to quantify past exposures...
April 2024: Journal of the National Comprehensive Cancer Network: JNCCN
#37
Lauren A Ray, Deborah F Billmire, Michael J Ferguson, Erica A Eugster
INTRODUCTION: Ovarian Sertoli cell tumors represent a subset of sex cord-stromal tumors and are exceedingly rare in prepubertal children. Here we report a girl with vaginal bleeding due to a Sertoli cell tumor who was originally thought to have McCune-Albright syndrome (MAS). CASE PRESENTATION: A previously healthy girl presented at age two years six months with breast development and vaginal bleeding. On exam, she had Tanner 4 breasts, Tanner 1 pubic hair, estrogenized vaginal mucosa, and a café-au-lait macule...
April 16, 2024: Hormone Research in Pædiatrics
#38
JOURNAL ARTICLE
Sungwon Jeon, Hansol Choi, Yeonsu Jeon, Whan-Hyuk Choi, Hyunjoo Choi, Kyungwhan An, Hyojung Ryu, Jihun Bhak, Hyeonjae Lee, Yoonsung Kwon, Sukyeon Ha, Yeo Jin Kim, Asta Blazyte, Changjae Kim, Yeonkyung Kim, Younghui Kang, Yeong Ju Woo, Chanyoung Lee, Jeongwoo Seo, Changhan Yoon, Dan Bolser, Orsolya Biro, Eun-Seok Shin, Byung Chul Kim, Seon-Young Kim, Ji-Hwan Park, Jongbum Jeon, Dooyoung Jung, Semin Lee, Jong Bhak
BACKGROUND: Phenome-wide association studies (PheWASs) have been conducted on Asian populations, including Koreans, but many were based on chip or exome genotyping data. Such studies have limitations regarding whole genome-wide association analysis, making it crucial to have genome-to-phenome association information with the largest possible whole genome and matched phenome data to conduct further population-genome studies and develop health care services based on population genomics...
January 2, 2024: GigaScience
#39
JOURNAL ARTICLE
D Orsucci, A Tessa, E Caldarazzo Ienco, R Trovato, G Natale, G Bilancieri, M Giuntini, A Napolitano, S Salvetti, M Vista, F M Santorelli
OBJECTIVE: Essential Tremor (ET) is one of the most common neurological disorders. In most instances ET is inherited as an autosomal dominant trait with age-related penetrance (virtually complete in advanced age); however, ET genetics remains elusive. The current study aims to identify possibly pathogenic genetic variants in a group of well-characterized ET families. METHODS: 34 individuals from 14 families with dominant ET were clinically evaluated and studied by whole exome sequencing studies (after excluding trinucleotide expansion disorders)...
April 13, 2024: Journal of the Neurological Sciences
#40
JOURNAL ARTICLE
Manna Sun, Jiwu Lou, Wang Xinghe, Ying Zhao, Yunshi Dai, Shuangai Liu, Tizhen Yan
OBJECTIVES: In clinical practice, the majority of α-thalassaemia cases arise from deletions of the α-globin genes. However, a subset of cases is attributed to rare haemoglobin variants, which can manifest with borderline or normal screening results, potentially leading to missed diagnoses in clinical practice. METHODS: Blood samples were collected from family members and underwent haematological, DNA and RNA analysis. RESULTS: The five-month-old proband presented a haematological phenotype consistent with Hb H disease...
December 2024: Hematology (Amsterdam, Netherlands)
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