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JOURNAL ARTICLE
Kyu-Young Oh, Ji-Hoon Kim, Hye-Jung Yoon
Calcifying odontogenic cyst (COC), once called calcifying cystic odontogenic tumor (CCOT), is classified under the category of odontogenic cysts. However, the proliferative capacity of the lesional epithelium and consistent nuclear β-catenin expression raise questions about its current classification. This study aimed to determine whether COC would be better classified as a neoplasm in the histologic and molecular context. Eleven odontogenic lesions diagnosed as COC or CCOT were included in this study...
April 2, 2024: Modern Pathology
#22
JOURNAL ARTICLE
Adithya Christopher Godfred, Zachariah Thomas, Dincy Peter, Anjana Joseph, Lavanya Ravichandran, Anu Anna George, Susanne A Pulimood, Pranay Gaikwad, Ramesh Babu, Meera Thomas, Nihal Thomas, Aaron Chapla
Epidermodysplasia verruciformis (EV) is a rare autosomal recessive genodermatosis due to mutations in EVER1 and EVER2 genes. The genetic profile of Indian patients with EV has not been previously studied. This report describes the clinical presentation and molecular analysis of a family with EV. Using genomic DNA from two affected probands and healthy controls (two other siblings), conventional polymerase chain reaction (PCR) was conducted with novel primer sets designed to amplify the coding and splice-site regions in the genes EVER1 and EVER 2...
April 4, 2024: American Journal of Dermatopathology
#23
Yamato Osawa, Nobutaka Ichiwata, Junko Kenmotsu, Tsuyoshi Okada, Yohei Masunaga, Tsutomu Ogata, Ichiro Morioka, Tatsuhiko Urakami
We present the case of a young male patient (height, 158.1 cm [+3.3 standard deviation (SD)]; weight, 63.7 kg [body mass index, 25.5]) with diabetes mellitus and severe insulin resistance associated with a heterozygous pathogenic insulin receptor substrate 1 ( IRS1 ) frameshift mutation. The patient also had severe acanthosis nigricans. Notably, the patient's father was undergoing treatment with high doses of insulin for diabetes mellitus, and had been experiencing angina pectoris. Laboratory data showed a fasting plasma glucose level of 88 mg/dL, hemoglobin A1C (HbA1c) of 7...
2024: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
#24
Jiao Tong, Xu Chen, Xin Wang, Shuai Men, Yuan Liu, Xun Sun, Dongmei Yan, Leilei Wang
BACKGROUND: We report here the clinical and genetic features of KMT5B -related neurodevelopmental disorder caused by a novel heterozygous frameshift variant in KMT5B in a Chinese family. CASE PRESENTATION: A 7-year-old Chinese boy with mild-to-moderate intellectual disability, significant language impairment, motor disability, and coordination difficulties presented to our hospital because he "could not speak and did not look at others." He was diagnosed with autism spectrum disorder previously owing to developmental delays in cognition, language expression, and understanding...
April 15, 2024: Heliyon
#25
Chi Zhao, Chengcheng Gao, Yijun Zhu, Qi Zhang, Ping Lin
BACKGROUND: GLI3 gene mutations can result in various forms of polysyndactyly, such as Greig cephalopolysyndactyly syndrome (GCPS, MIM: #175700), Pallister-Hall syndrome (PHS, MIM: #146510), and isolated polydactyly (IPD, MIM: #174200, #174700). Reports on IPD-associated GLI3 mutations are rare. In this study, a novel GLI3 mutation was identified in a Chinese family with IPD. RESULTS: We report a family with six members affected by IPD. The family members demonstrated several special phenotypes, including sex differences, abnormal finger joint development, and different polydactyly types...
April 15, 2024: Heliyon
#26
REVIEW
John S Waye, Meredith Hanna, Betty-Ann Hohenadel, Lisa Nakamura, Lynda Walker, Barry Eng, Landry E Nfonsam
Newborn screening identified a Chinese-Canadian infant who was positive for possible β-thalassemia (β-thal). Detailed family studies demonstrated that the proband was a compound heterozygote for the Chinese G γ(A γδβ)0 -thal deletion and a novel frameshift mutation within exon 3 ( HBB :c.336dup), and heterozygous for the Southeast Asian α-thal deletion (--SEA /αα). This case illustrates the importance of follow-up molecular testing of positive newborn screening results to confirm the diagnosis and define risks for future pregnancies...
April 2, 2024: Hemoglobin
#27
JOURNAL ARTICLE
Yun Qing, Hai-Man Zou, Bu-Jin Liu, Dan-Li Cui, Jun-Hong Yang, Xia Huang
BACKGROUND: We recently encountered a Rhnull phenotype proband within one family in the Chinese population. Rhnull is a rare autosomal recessive disorder characterized by the absence of the Rh antigens on the erythrocyte membrane, resulting in chronic hemolytic anemia. This study described the serological and molecular analysis of a Chinese Rhnull proband and his immediate family. METHODS: Red blood cells antigen phenotyping and antibody screening/identification were conducted...
April 2, 2024: Transfusion
#28
JOURNAL ARTICLE
Yuepeng Hu, Jian-Min Chen, Han Zuo, Na Pu, Guofu Zhang, Yichen Duan, Gang Li, Zhihui Tong, Weiqin Li, Baiqiang Li, Qi Yang
BACKGROUND: Lipoprotein lipase (LPL) plays a crucial role in triglyceride hydrolysis. Rare biallelic variants in the LPL gene leading to complete or near-complete loss of function cause autosomal recessive familial chylomicronemia syndrome. However, rare biallelic LPL variants resulting in significant but partial loss of function are rarely documented. This study reports a novel occurrence of such rare biallelic LPL variants in a Chinese patient with hypertriglyceridemia-induced acute pancreatitis (HTG-AP) during pregnancy and provides an in-depth functional characterization...
April 1, 2024: Lipids in Health and Disease
#29
JOURNAL ARTICLE
Poornima Jayadev Menon, Sara Sambin, Baptiste Criniere-Boizet, Thomas Courtin, Christelle Tesson, Fanny Casse, Melanie Ferrien, Louise-Laure Mariani, Stephanie Carvalho, Francois-Xavier Lejeune, Sana Rebbah, Gaspard Martet, Marion Houot, Aymeric Lanore, Graziella Mangone, Emmanuel Roze, Marie Vidailhet, Jan Aasly, Ziv Gan Or, Eric Yu, Yves Dauvilliers, Alexander Zimprich, Volker Tomantschger, Walter Pirker, Ignacio Álvarez, Pau Pastor, Alessio Di Fonzo, Kailash P Bhatia, Francesca Magrinelli, Henry Houlden, Raquel Real, Andrea Quattrone, Patricia Limousin, Prasad Korlipara, Thomas Foltynie, Donald Grosset, Nigel Williams, Derek Narendra, Hsin-Pin Lin, Carna Jovanovic, Marina Svetel, Timothy Lynch, Amy Gallagher, Wim Vandenberghe, Thomas Gasser, Kathrin Brockmann, Huw R Morris, Max Borsche, Christine Klein, Olga Corti, Alexis Brice, Suzanne Lesage, Jean Christophe Corvol
Bi-allelic pathogenic variants in PRKN are the most common cause of autosomal recessive Parkinson's disease (PD). 647 patients with PRKN-PD were included in this international study. The pathogenic variants present were characterised and investigated for their effect on phenotype. Clinical features and progression of PRKN-PD was also assessed. Among 133 variants in index cases (n = 582), there were 58 (43.6%) structural variants, 34 (25.6%) missense, 20 (15%) frameshift, 10 splice site (7.5%%), 9 (6...
March 29, 2024: NPJ Parkinson's Disease
#30
JOURNAL ARTICLE
Ayse Bahar Ercan, Melyssa Aronson, Nicholas R Fernandez, Yuan Chang, Adrian Levine, Zhihui Amy Liu, Logine Negm, Melissa Edwards, Vanessa Bianchi, Lucie Stengs, Jiil Chung, Abeer Al-Battashi, Agnes Reschke, Alex Lion, Alia Ahmad, Alvaro Lassaletta, Alyssa T Reddy, Amir F Al-Darraji, Amish C Shah, An Van Damme, Anne Bendel, Aqeela Rashid, Ashley S Margol, Bethany L Kelly, Bojana Pencheva, Brandie Heald, Brianna Lemieux-Anglin, Bruce Crooks, Carl Koschmann, Catherine Gilpin, Christopher C Porter, David Gass, David Samuel, David S Ziegler, Deborah T Blumenthal, Dennis John Kuo, Dima Hamideh, Donald Basel, Dong-Anh Khuong-Quang, Duncan Stearns, Enrico Opocher, Fernando Carceller, Hagit Baris Feldman, Helen Toledano, Ira Winer, Isabelle Scheers, Ivana Fedorakova, Jack M Su, Jaime Vengoechea, Jaroslav Sterba, Jeffrey Knipstein, Jordan R Hansford, Julieta Rita Gonzales-Santos, Kanika Bhatia, Kevin J Bielamowicz, Khurram Minhas, Kim E Nichols, Kristina A Cole, Lynette Penney, Magnus Aasved Hjort, Magnus Sabel, Maria Joao Gil-da-Costa, Matthew J Murray, Matthew Miller, Maude L Blundell, Maura Massimino, Maysa Al-Hussaini, Mazin F Al-Jadiry, Melanie A Comito, Michael Osborn, Michael P Link, Michal Zapotocky, Mithra Ghalibafian, Najma Shaheen, Naureen Mushtaq, Nicolas Waespe, Nobuko Hijiya, Noemi Fuentes-Bolanos, Olfat Ahmad, Omar Chamdine, Paromita Roy, Pavel N Pichurin, Per Nyman, Rachel Pearlman, Rebecca C Auer, Reghu K Sukumaran, Rejin Kebudi, Rina Dvir, Robert Raphael, Ronit Elhasid, Rose B McGee, Rose Chami, Ryan Noss, Ryuma Tanaka, Salmo Raskin, Santanu Sen, Scott Lindhorst, Sebastien Perreault, Shani Caspi, Shazia Riaz, Shlomi Constantini, Sophie Albert, Stanley Chaleff, Stefan Bielack, Stefano Chiaravalli, Stuart Louis Cramer, Sumita Roy, Suzanne Cahn, Suzanne Penna, Syed Ahmer Hamid, Tariq Ghafoor, Uzma Imam, Valerie Larouche, Vanan Magimairajan Issai, William D Foulkes, Yi Yen Lee, Paul C Nathan, Yosef E Maruvka, Mary-Louise C Greer, Carol Durno, Adam Shlien, Birgit Ertl-Wagner, Anita Villani, David Malkin, Cynthia Hawkins, Eric Bouffet, Anirban Das, Uri Tabori
BACKGROUND: Constitutional mismatch repair deficiency (CMMRD) syndrome is a rare and aggressive cancer predisposition syndrome. Because a scarcity of data on this condition contributes to management challenges and poor outcomes, we aimed to describe the clinical spectrum, cancer biology, and impact of genetics on patient survival in CMMRD. METHODS: In this cohort study, we collected cross-sectional and longitudinal data on all patients with CMMRD, with no age limits, registered with the International Replication Repair Deficiency Consortium (IRRDC) across more than 50 countries...
March 26, 2024: Lancet Oncology
#31
JOURNAL ARTICLE
Ting Wei, Bing Zhang, Wei Tang, Xin Li, Zhuang Shuai, Tao Tang, Yueyang Zhang, Lin Deng, Qingsong Liu
BACKGROUND: PKD1, which has a relatively high mutation rate, is highly polymorphic, and the role of PKD1 is incompletely defined. In the current study, in order to determine the molecular etiology of a family with autosomal dominant polycystic kidney disease, the pathogenicity of an frameshift mutation in the PKD1 gene, c.9484delC, was evaluated. METHODS: The family clinical data were collected. Whole exome sequencing analysis determined the level of this mutation in the proband's PKD1, and Sanger sequencing and bioinformatics analysis were performed...
March 29, 2024: Medicine (Baltimore)
#32
Katarzyna Wojciechowska, Michał Kwaśny, Aleksandra Pietrzyk, Monika Lejman
There are 21 human cyclin-dependent kinases which are involved in regulation of the cell cycle, transcription, RNA splicing, apoptosis and neurogenesis. Five of them: CDK4, CDK5, CDK6, CDK10 and CDK13 are associated with human phenotypes. To date, only 62 patients have been presented with mutated CDK13 gene. Those patients had developmental delay, dysmorphic facial features, feeding difficulties, different structural heart and brain defects. 36 of them had missense mutation affecting the protein kinase domain of CDK13...
March 25, 2024: Annals of Agricultural and Environmental Medicine: AAEM
#33
Natalie Burrill, Nahla Khalek, Ana G Cristancho, Beverly Coleman, Jill Murrell, Julie S Moldenhauer
We report a 32-year-old G3P1 at 35 weeks 3 days with a dichorionic, diamniotic twin gestation who presented for evaluation secondary to ventriculomegaly (VM) in one twin. Fetal ultrasound and MRI demonstrated microcephaly, severe VM, compression of the corpus callosum, scalp and nuchal thickening, elongated ears, bilateral talipes, right-sided congenital diaphragmatic hernia (CDH), and loss of normal cerebral architecture, indicative of a prior insult in the affected twin. The co-twin was grossly normal...
March 28, 2024: Prenatal Diagnosis
#34
JOURNAL ARTICLE
Yun Sun, Weiwei Men, Ingo Kennerknecht, Wan Fang, Hou-Feng Zheng, Wenxia Zhang, Yi Rao
Face recognition is important for both visual and social cognition. While prosopagnosia or face blindness has been known for seven decades and face specific neurons for half a century, the molecular genetic mechanism is not clear. Here we report results after 17 years of research with classic genetics and modern genomics. From a large family with 18 congenital prosopagnosia (CP) members with obvious difficulties in face recognition in daily life, we uncovered a fully cosegregating private mutation in the MCTP2 gene which encodes a calcium binding transmembrane protein expressed in the brain...
March 28, 2024: Genetics
#35
JOURNAL ARTICLE
Hai Tang Yue, Hai Yan Cao, Miao He
OBJECTIVE: To analyse the aetiology and pathogenesis of Gorlin-Goltz syndrome (GS; also known as nevoid basal cell carcinoma syndrome [NBCCS] or basal cell nevus syndrome [BCNS]) in a Chinese family. METHODS: Whole-exome sequencing (WES) was performed on genomic DNA samples from the subjects in a family, followed by the investigation of pathogenesis via bioinformatic approaches and conformational analysis. RESULTS: A novel heterozygous non-frameshift deletion patched 1 (PTCH1) [NM_000264: c...
March 28, 2024: Chinese Journal of Dental Research
#36
JOURNAL ARTICLE
Jia Nan Ding, Miao Yu, Hao Chen Liu, Kai Sun, Jing Wang, Xiang Liang Xu, Yang Liu, Dong Han
OBJECTIVE: To investigate FAM20A gene variants and histological features of amelogenesis imperfecta and to further explore the functional impact of these variants. METHODS: Whole-exome sequencing (WES) and Sanger sequencing were used to identify pathogenic gene variants in three Chinese families with amelogenesis imperfecta. Bioinformatics analysis, in vitro histological examinations and experiments were conducted to study the functional impact of gene variants, and the histological features of enamel, keratinised oral mucosa and dental follicle...
March 28, 2024: Chinese Journal of Dental Research
#37
JOURNAL ARTICLE
Exome sequencing identified mutations in the WNT1 and COL1A2 genes in osteogenesis imperfecta cases.
Poonam Mehta, Rahul Vishvkarma, Sushil Gupta, Naibedya Chattopadhyay, Singh Rajender
BACKGROUND: Osteogenesis imperfecta (OI) is a heritable connective tissue disorder characterized by bone deformities, fractures and reduced bone mass. OI can be inherited as a dominant, recessive, or X-linked disorder. The mutational spectrum has shown that autosomal dominant mutations in the type I collagen-encoding genes are responsible for OI in 85% of the cases. Apart from collagen genes, mutations in more than 20 other genes, such as CRTAP, CREB3L1, MBTPS2, P4HB, SEC24D, SPARC, FKBP10, LEPRE1, PLOD2, PPIB, SERPINF1, SERPINH1, SP7, WNT1, BMP1, TMEM38B, and IFITM5 have been reported in OI...
March 27, 2024: Molecular Biology Reports
#38
JOURNAL ARTICLE
Joanna Klim, Urszula Zielenkiewicz, Szymon Kaczanowski
We noticed that during short-term experimental evolution and carcinogenesis, mutations causing gene inactivation (i.e., nonsense mutations or frameshifts) are frequent. Our meta-analysis of 65 experiments using modified dN/dS statistics indicated that nonsense mutations are adaptive in different experimental conditions and we empirically confirmed this prediction. Using yeast S. cerevisiae as a model we show that fixed or highly frequent gene loss-of-function mutations are almost exclusively adaptive in the majority of experiments...
March 26, 2024: Scientific Reports
#39
JOURNAL ARTICLE
Umut Altunoglu, Adrian Palencia-Campos, Nilay Güneş, Gozde Tutku Turgut, Julian Nevado, Pablo Lapunzina, Maria Valencia, Asier Iturrate, Ghada Otaify, Rasha Elhossini, Adel Ashour, Asmaa K Amin, Rania F Elnahas, Elisa Fernandez-Nuñez, Carmen-Lisset Flores, Pedro Arias, Jair Tenorio, Carlos Israel Chamorro Fernández, Yeliz Güven, Elif Özsu, Beray Selver Eklioğlu, Marisol Ibarra-Ramirez, Birgitte Rode Diness, Birute Burnyte, Houda Ajmi, Zafer Yüksel, Ruken Yıldırım, Edip Ünal, Ebtesam Abdalla, Mona Aglan, Hulya Kayserili, Beyhan Tuysuz, Victor Ruiz-Pérez
BACKGROUND: Ellis-van Creveld syndrome (EvC) is a recessive disorder characterised by acromesomelic limb shortening, postaxial polydactyly, nail-teeth dysplasia and congenital cardiac defects, primarily caused by pathogenic variants in EVC or EVC2 . Weyers acrofacial dysostosis (WAD) is an ultra-rare dominant condition allelic to EvC. The present work aimed to enhance current knowledge on the clinical manifestations of EvC and WAD and broaden their mutational spectrum. METHODS: We conducted molecular studies in 46 individuals from 43 unrelated families with a preliminary clinical diagnosis of EvC and 3 affected individuals from a family with WAD and retrospectively analysed clinical data...
March 26, 2024: Journal of Medical Genetics
#40
JOURNAL ARTICLE
Takumi Nakamura, Toru Yoshihara, Chiharu Tanegashima, Mitsutaka Kadota, Yuki Kobayashi, Kurara Honda, Mizuho Ishiwata, Junko Ueda, Tomonori Hara, Moe Nakanishi, Toru Takumi, Shigeyoshi Itohara, Shigehiro Kuraku, Masahide Asano, Takaoki Kasahara, Kazuo Nakajima, Takashi Tsuboi, Atsushi Takata, Tadafumi Kato
Recent studies have consistently demonstrated that the regulation of chromatin and gene transcription plays a pivotal role in the pathogenesis of neurodevelopmental disorders. Among many genes involved in these pathways, KMT2C, encoding one of the six known histone H3 lysine 4 (H3K4) methyltransferases in humans and rodents, was identified as a gene whose heterozygous loss-of-function variants are causally associated with autism spectrum disorder (ASD) and the Kleefstra syndrome phenotypic spectrum. However, little is known about how KMT2C haploinsufficiency causes neurodevelopmental deficits and how these conditions can be treated...
March 26, 2024: Molecular Psychiatry
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