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1. Natural history of adults with KBG syndrome: A physician-reported experience

Author

Bayat, Allan, Grimes, Hannah, de Boer, Elke, Herlin, Morten Krogh, Dahl, Rebekka Staal, Lund, Ida Charlotte Bay, Bayat, Michael, Bolund, Anneli Clea Skjelmose, Gjerulfsen, Cathrine Elisabeth, Gregersen, Pernille Axél, Zilmer, Monica, Juhl, Stefan, Cebula, Katarzyna, Rahikkala, Elisa, Maystadt, Isabelle, Peron, Angela, Vignoli, Aglaia, Alfano, Rosa Maria, Stanzial, Franco, Benedicenti, Francesco, Currò, Aurora, Luk, Ho-Ming, Jouret, Guillaume, Zurita, Ella, Heuft, Lara, Schnabel, Franziska, Busche, Andreas, Veenstra-Knol, Hermine Elisabeth, Tkemaladze, Tinatin, Vrielynck, Pascal, Lederer, Damien, Platzer, Konrad, Ockeloen, Charlotte Wilhelmina, Goel, Himanshu, and Low, Karen Jaqueline

Published
2024
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2. De novo variants in FRYL are associated with developmental delay, intellectual disability, and dysmorphic features

Author

Burrage, Lindsay C., Heaney, Jason D., Kim, Seon-Young, Lanza, Denise G., Liu, Zhandong, Mao, Dongxue, Milosavljevic, Aleksander, Nagamani, Sandesh C.S., Posey, Jennifer E., Ramamurthy, Uma, Ramanathan, Vivek, Rogers, Jeffrey, Rosenfeld, Jill A., Roth, Matthew, Zahedi Darshoori, Ramin, Pan, Xueyang, Tao, Alice M., Lu, Shenzhao, Ma, Mengqi, Hannan, Shabab B., Slaugh, Rachel, Drewes Williams, Sarah, O'Grady, Lauren, Kanca, Oguz, Person, Richard, Carter, Melissa T., Platzer, Konrad, Schnabel, Franziska, Abou Jamra, Rami, Roberts, Amy E., Newburger, Jane W., Revah-Politi, Anya, Granadillo, Jorge L., Stegmann, Alexander P.A., Sinnema, Margje, Accogli, Andrea, Salpietro, Vincenzo, Capra, Valeria, Ghaloul-Gonzalez, Lina, Brueckner, Martina, Simon, Marleen E.H., Sweetser, David A., Glinton, Kevin E., Kirk, Susan E., Wangler, Michael F., Yamamoto, Shinya, Chung, Wendy K., and Bellen, Hugo J.

Published
2024
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5. GestaltMatcher Database - A global reference for facial phenotypic variability in rare human diseases

Author

Hsieh, Tzung-Chien, primary, Lesmann, Hellen, additional, Hustinx, Alexander, additional, Moosa, Shahida, additional, Marchi, Elaine, additional, Martin, Maria del Pilar Caro, additional, Abdelrazek, Ibrahim, additional, Pantel, Jean Tori, additional, Klinkhammer, Hannah, additional, Hagen, Merle ten, additional, Thong, Meow-Keong, additional, Mazlan, Rifhan Azwani Binti, additional, Tae, Sok Kun, additional, Kamphans, Tom, additional, Meiswinkel, Wolfgang, additional, Li, Jing-Mei, additional, Javanmardi, Behnam, additional, Knaus, Alexej, additional, Uwineza, Annette, additional, Knopp, Cordula, additional, Tkemaladze, Tinatin, additional, Elbracht, Miriam, additional, Mattern, Larissa, additional, Jamra, Rami Abou, additional, Velmans, Clara, additional, Strehlow, Vincent, additional, Jacob, Maureen, additional, Peron, Angela, additional, Dias, Cristina, additional, Nunes, Beatriz, additional, Vilella, Thainá, additional, Pinheiro, Isabel, additional, Kim, Chong, additional, Melaragno, Maria, additional, Weiland, Hannah, additional, Kaptain, Sophia, additional, Chwiałkowska, Karolina , additional, Kwasniewski, Miroslaw, additional, Saad, Ramy, additional, Wiethoff, Sarah, additional, Goel, Himanshu, additional, Tang, Clara, additional, Hau, Anna, additional, Barakat, Tahsin Stefan, additional, Panek, Przemysław, additional, Nabil, Amira, additional, Suh, Julia, additional, Braun, Frederik, additional, Gomy, Israel, additional, Averdunk, Luisa, additional, Ekure, Ekanem, additional, Bergant, Gaber, additional, Peterlin, Borut, additional, Graziano, Claudio, additional, Gaboon, Nagwa, additional, Fiesco-Roa, Moisés, additional, Spinelli, Alessandro, additional, Wilpert, Nina-Maria, additional, Phowthongkum, Prasit, additional, Güzel, Nergis, additional, Haack, Tobias, additional, Bitar, Rana, additional, Tzschach, Andreas, additional, Rodriguez-Palmero, Agusti, additional, Brunet, Theresa, additional, Rudnik-Schöneborn, Sabine, additional, Contreras-Capetillo, Silvina, additional, Oberlack, Ava, additional, Samango-Sprouse, Carole, additional, Sadeghin, Teresa, additional, Olaya, Margaret, additional, Platzer, Konrad, additional, Borovikov, Artem, additional, Schnabel, Franziska, additional, Heuft, Lara, additional, Herrmann, Vera, additional, Oegema, Renske, additional, Elkhateeb, Nour, additional, Kumar, Sheetal, additional, Komlosi, Katalin, additional, Mohamed, Khoushoua, additional, Kalantari, Silvia, additional, Sirchia, Fabio, additional, Martinez-Monseny, Antonio, additional, Höller, Matthias, additional, Mohamed, Amal, additional, Lasa-Aranzasti, Amaia, additional, Sayer, John, additional, Ehmke, Nadja, additional, Danyel, Magdalena, additional, Sczakiel, Henrike, additional, Schwartzmann, Sarina, additional, Boschann, Felix, additional, Zhao, Max, additional, Adams, Ronja, additional, Einicke, Lara, additional, Horn, Denise, additional, Chew, Kee Seang, additional, Kam, Choy Chen, additional, Karakoyun, Miray, additional, Pode-Shakked, Ben, additional, Eliyahu, Aviva, additional, Rock, Rachel, additional, Carrion, Teresa, additional, Chorin, Odelia, additional, Zarate, Yuri, additional, Martinez, Marcello, additional, Karakaya, Mert, additional, Tung, Moon Ley, additional, Chandra, Bharatendu, additional, Lumaka, Aimé, additional, Shinawi, Marwan, additional, Blackburn, Patrick, additional, Wang, Tianyun, additional, Niehues, Tim, additional, Hu, Ping, additional, Waikel, Rebekah, additional, Hanchard, Suzanna Ledgister, additional, Elmakkawy, Gehad, additional, Safwat, Sylvia, additional, Ebstein, Frédéric, additional, Krüger, Elke, additional, Küry, Sébastien, additional, Bezieau, Stephane, additional, Arlt, Annabelle, additional, Marbach, Felix, additional, Li, Dong, additional, Dupuis, Lucie, additional, Mendoza-Londono, Roberto, additional, Houge, Sofia Douzgou, additional, Weis, Denisa, additional, Chung, Brian, additional, Mak, Christopher, additional, Elcioglu, Nursel, additional, Aykut, Ayca, additional, Şimşek-Kiper, Peli, additional, Bögershausen, Nina, additional, Wollnik, Bernd, additional, Bentzen, Heidi Beate, additional, Kurth, Ingo, additional, Netzer, Christian, additional, Jezela-Stanek, Aleksandra, additional, Devriendt, Koen, additional, Gripp, Karen, additional, Mücke, Martin, additional, Verloes, Alain, additional, Schaaf, Christian, additional, Nellåker, Christoffer, additional, Solomon, Benjamin, additional, Nöthen, Markus, additional, Abdalla, Ebtesam, additional, Lyon, Gholson, additional, Krawitz, Peter, additional, Kayserili, Hulya, additional, Toutouna, Louiza, additional, Schmidt, Axel, additional, Roth, Regina, additional, Wieczorek, Dagmar, additional, and Olinger, Eric, additional

Published
2024
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6. Thiamine-Responsive Megaloblastic Anemia Syndrome Mimicking Myelodysplastic Neoplasm.

Author

Klötzer, Christina, Schnabel, Franziska, Kubasch, Anne-Sophie, Jentzsch, Madlen, Franke, Georg-Nikolaus, Uhlig, Jens, Faust, Helene, Jauss, Robin-Tobias, Oppermann, Henry, Popp, Denny, Metzeler, Klaus H., Lemke, Johannes R., Vučinić, Vladan, and Platzbecker, Uwe

Subjects
*VITAMIN B12 deficiency, *GENETIC variation, *CHROMOSOME inversions, *SENSORINEURAL hearing loss, *VITAMIN B12
Abstract

Introduction: Thiamine-responsive megaloblastic anemia syndrome (TRMA) is a rare autosomal recessive disease with a homozygous or compound-heterozygous mutation in the SLC19A2 gene characterized by megaloblastic anemia, diabetes mellitus (DM), and sensorineural hearing loss with onset in childhood. Folic acid and vitamin B12 in serum are normal with dysplastic erythropoiesis in the bone marrow often mimicking myelodysplastic neoplasms (MDS) as a potential differential diagnosis. Thiamine substitution leads to normalization of anemia, without effects on hearing loss or DM. Case Presentation: We report about a 38-year-old male patient, presented with a 12-year history of anemia, insulin dependent DM, optic neuropathy, and a cataract since early childhood. The laboratory showed megaloblastic anemia. Other values were normal. The bone marrow smear showed dysplastic erythropoiesis with megaloblastic changes, and normal findings in cytogenetic and molecular genetic examinations. Next-generation sequencing-based diagnostics revealed a heterozygous missense variant in the SLC19A2 gene on the maternal allele and a 3.4 Mb inversion in the chromosomal region 1q24.2 with breaking points in FAM78B and SLC19A2 on the paternal allele. Treatment with oral thiamine 100 mg daily was initiated, and 12 weeks later hemoglobin levels and bone marrow morphology had normalized. Conclusion: Late-onset TRMA should be considered in adult patients with indicative comorbidities and a typical phenotype, which may mimic features of MDS. [ABSTRACT FROM AUTHOR]

Published
2024
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7. De novo variants in FRYL are associated with developmental delay, intellectual disability, and dysmorphic features

Author

Pan, Xueyang, primary, Tao, Alice M., additional, Lu, Shenzhao, additional, Ma, Mengqi, additional, Hannan, Shabab B., additional, Slaugh, Rachel, additional, Drewes Williams, Sarah, additional, O'Grady, Lauren, additional, Kanca, Oguz, additional, Person, Richard, additional, Carter, Melissa T., additional, Platzer, Konrad, additional, Schnabel, Franziska, additional, Abou Jamra, Rami, additional, Roberts, Amy E., additional, Newburger, Jane W., additional, Revah-Politi, Anya, additional, Granadillo, Jorge L., additional, Stegmann, Alexander P.A., additional, Sinnema, Margje, additional, Accogli, Andrea, additional, Salpietro, Vincenzo, additional, Capra, Valeria, additional, Ghaloul-Gonzalez, Lina, additional, Brueckner, Martina, additional, Simon, Marleen E.H., additional, Sweetser, David A., additional, Glinton, Kevin E., additional, Kirk, Susan E., additional, Wangler, Michael F., additional, Yamamoto, Shinya, additional, Chung, Wendy K., additional, Bellen, Hugo J., additional, Burrage, Lindsay C., additional, Heaney, Jason D., additional, Kim, Seon-Young, additional, Lanza, Denise G., additional, Liu, Zhandong, additional, Mao, Dongxue, additional, Milosavljevic, Aleksander, additional, Nagamani, Sandesh C.S., additional, Posey, Jennifer E., additional, Ramamurthy, Uma, additional, Ramanathan, Vivek, additional, Rogers, Jeffrey, additional, Rosenfeld, Jill A., additional, Roth, Matthew, additional, and Zahedi Darshoori, Ramin, additional

Published
2024
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8. GestaltMatcher Database - A global reference for facial phenotypic variability in rare human diseases

Author

Hsieh, Tzung-Chien, Lesmann, Hellen, Hustinx, Alexander, Moosa, Shahida, Marchi, Elaine, Martin, Maria Del Pilar Caro, Abdelrazek, Ibrahim, Pantel, Jean Tori, Klinkhammer, Hannah, Hagen, Merle Ten, Thong, Meow-Keong, Mazlan, Rifhan Azwani Binti, Tae, Sok Kun, Kamphans, Tom, Meiswinkel, Wolfgang, Javanmardi, Behnam, Knaus, Alexej, Uwineza, Annette, Knopp, Cordula, Tkemaladze, Tinatin, Elbracht, Miriam, Mattern, Larissa, Jamra, Rami Abou, Velmans, Clara, Strehlow, Vincent, Jacob, Maureen, Peron, Angela, Dias, Cristina, Nunes, Beatriz, Vilella, Thainá, Pinheiro, Isabel, Kim, Chong, Melaragno, Maria, Weiland, Hannah, Kaptain, Sophia, Chwiałkowska, Karolina, Kwasniewski, Miroslaw, Saad, Ramy, Wiethoff, Sarah, Goel, Himanshu, Tang, Clara, Hau, Anna, Barakat, Tahsin Stefan, Panek, Przemysław, Nabil, Amira, Suh, Julia, Braun, Frederik, Gomy, Israel, Averdunk, Luisa, Ekure, Ekanem, Bergant, Gaber, Peterlin, Borut, Graziano, Claudio, Gaboon, Nagwa, Fiesco-Roa, Moisés, Spinelli, Alessandro, Wilpert, Nina-Maria, Phowthongkum, Prasit, Güzel, Nergis, Haack, Tobias, Bitar, Rana, Tzschach, Andreas, Rodriguez-Palmero, Agusti, Brunet, Theresa, Rudnik-Schöneborn, Sabine, Contreras-Capetillo, Silvina, Oberlack, Ava, Samango-Sprouse, Carole, Sadeghin, Teresa, Olaya, Margaret, Platzer, Konrad, Borovikov, Artem, Schnabel, Franziska, Heuft, Lara, Herrmann, Vera, Elkhateeb, Nour, Kumar, Sheetal, Komlosi, Katalin, Mohamed, Khoushoua, Kalantari, Silvia, Sirchia, Fabio, Martinez-Monseny, Antonio, Höller, Matthias, Mohamed, Amal, Lasa-Aranzasti, Amaia, Sayer, John, Ehmke, Nadja, Danyel, Magdalena, Sczakiel, Henrike, Schwartzmann, Sarina, Boschann, Felix, Zhao, Max, Adams, Ronja, Einicke, Lara, Chew, Kee Seang, Kam, Choy Chen, Karakoyun, Miray, Pode-Shakked, Ben, Eliyahu, Aviva, Rock, Rachel, Carrion, Teresa, Chorin, Odelia, Zarate, Yuri, Martinez, Marcello, Karakaya, Mert, Tung, Moon Ley, Chandra, Bharatendu, Lumaka, Aimé, Shinawi, Marwan, Blackburn, Patrick, Wang, Tianyun, Niehues, Tim, Hu, Ping, Waikel, Rebekah, Hanchard, Suzanna Ledgister, Elmakkawy, Gehad, Safwat, Sylvia, Ebstein, Frédéric, Krüger, Elke, Küry, Sébastien, Bezieau, Stephane, Arlt, Annabelle, Marbach, Felix, Li, Dong, Dupuis, Lucie, Mendoza-Londono, Roberto, Houge, Sofia Douzgou, Weis, Denisa, Mak, Christopher, Elcioglu, Nursel, Aykut, Ayca, Şimşek-Kiper, Peli, Bögershausen, Nina, Wollnik, Bernd, Bentzen, Heidi Beate, Kurth, Ingo, Netzer, Christian, Jezela-Stanek, Aleksandra, Devriendt, Koen, Gripp, Karen, Mücke, Martin, Verloes, Alain, Schaaf, Christian, Nellåker, Christoffer, Solomon, Benjamin, Nöthen, Markus, Abdalla, Ebtesam, Lyon, Gholson, Krawitz, Peter, Kayserili, Hulya, Toutouna, Louiza, Schmidt, Axel, Roth, Regina, Wieczorek, Dagmar, Olinger, Eric, Hsieh, Tzung-Chien, Lesmann, Hellen, Hustinx, Alexander, Moosa, Shahida, Marchi, Elaine, Martin, Maria Del Pilar Caro, Abdelrazek, Ibrahim, Pantel, Jean Tori, Klinkhammer, Hannah, Hagen, Merle Ten, Thong, Meow-Keong, Mazlan, Rifhan Azwani Binti, Tae, Sok Kun, Kamphans, Tom, Meiswinkel, Wolfgang, Javanmardi, Behnam, Knaus, Alexej, Uwineza, Annette, Knopp, Cordula, Tkemaladze, Tinatin, Elbracht, Miriam, Mattern, Larissa, Jamra, Rami Abou, Velmans, Clara, Strehlow, Vincent, Jacob, Maureen, Peron, Angela, Dias, Cristina, Nunes, Beatriz, Vilella, Thainá, Pinheiro, Isabel, Kim, Chong, Melaragno, Maria, Weiland, Hannah, Kaptain, Sophia, Chwiałkowska, Karolina, Kwasniewski, Miroslaw, Saad, Ramy, Wiethoff, Sarah, Goel, Himanshu, Tang, Clara, Hau, Anna, Barakat, Tahsin Stefan, Panek, Przemysław, Nabil, Amira, Suh, Julia, Braun, Frederik, Gomy, Israel, Averdunk, Luisa, Ekure, Ekanem, Bergant, Gaber, Peterlin, Borut, Graziano, Claudio, Gaboon, Nagwa, Fiesco-Roa, Moisés, Spinelli, Alessandro, Wilpert, Nina-Maria, Phowthongkum, Prasit, Güzel, Nergis, Haack, Tobias, Bitar, Rana, Tzschach, Andreas, Rodriguez-Palmero, Agusti, Brunet, Theresa, Rudnik-Schöneborn, Sabine, Contreras-Capetillo, Silvina, Oberlack, Ava, Samango-Sprouse, Carole, Sadeghin, Teresa, Olaya, Margaret, Platzer, Konrad, Borovikov, Artem, Schnabel, Franziska, Heuft, Lara, Herrmann, Vera, Elkhateeb, Nour, Kumar, Sheetal, Komlosi, Katalin, Mohamed, Khoushoua, Kalantari, Silvia, Sirchia, Fabio, Martinez-Monseny, Antonio, Höller, Matthias, Mohamed, Amal, Lasa-Aranzasti, Amaia, Sayer, John, Ehmke, Nadja, Danyel, Magdalena, Sczakiel, Henrike, Schwartzmann, Sarina, Boschann, Felix, Zhao, Max, Adams, Ronja, Einicke, Lara, Chew, Kee Seang, Kam, Choy Chen, Karakoyun, Miray, Pode-Shakked, Ben, Eliyahu, Aviva, Rock, Rachel, Carrion, Teresa, Chorin, Odelia, Zarate, Yuri, Martinez, Marcello, Karakaya, Mert, Tung, Moon Ley, Chandra, Bharatendu, Lumaka, Aimé, Shinawi, Marwan, Blackburn, Patrick, Wang, Tianyun, Niehues, Tim, Hu, Ping, Waikel, Rebekah, Hanchard, Suzanna Ledgister, Elmakkawy, Gehad, Safwat, Sylvia, Ebstein, Frédéric, Krüger, Elke, Küry, Sébastien, Bezieau, Stephane, Arlt, Annabelle, Marbach, Felix, Li, Dong, Dupuis, Lucie, Mendoza-Londono, Roberto, Houge, Sofia Douzgou, Weis, Denisa, Mak, Christopher, Elcioglu, Nursel, Aykut, Ayca, Şimşek-Kiper, Peli, Bögershausen, Nina, Wollnik, Bernd, Bentzen, Heidi Beate, Kurth, Ingo, Netzer, Christian, Jezela-Stanek, Aleksandra, Devriendt, Koen, Gripp, Karen, Mücke, Martin, Verloes, Alain, Schaaf, Christian, Nellåker, Christoffer, Solomon, Benjamin, Nöthen, Markus, Abdalla, Ebtesam, Lyon, Gholson, Krawitz, Peter, Kayserili, Hulya, Toutouna, Louiza, Schmidt, Axel, Roth, Regina, Wieczorek, Dagmar, and Olinger, Eric

Abstract

The most important factor that complicates the work of dysmorphologists is the significant phenotypic variability of the human face. Next-Generation Phenotyping (NGP) tools that assist clinicians with recognizing characteristic syndromic patterns are particularly challenged when confronted with patients from populations different from their training data. To that end, we systematically analyzed the impact of genetic ancestry on facial dysmorphism. For that purpose, we established the GestaltMatcher Database (GMDB) as a reference dataset for medical images of patients with rare genetic disorders from around the world. We collected 10,980 frontal facial images - more than a quarter previously unpublished - from 8,346 patients, representing 581 rare disorders. Although the predominant ancestry is still European (67%), data from underrepresented populations have been increased considerably via global collaborations (19% Asian and 7% African). This includes previously unpublished reports for more than 40% of the African patients. The NGP analysis on this diverse dataset revealed characteristic performance differences depending on the composition of training and test sets corresponding to genetic relatedness. For clinical use of NGP, incorporating non-European patients resulted in a profound enhancement of GestaltMatcher performance. The top-5 accuracy rate increased by +11.29%. Importantly, this improvement in delineating the correct disorder from a facial portrait was achieved without decreasing the performance on European patients. By design, GMDB complies with the FAIR principles by rendering the curated medical data findable, accessible, interoperable, and reusable. This means GMDB can also serve as data for training and benchmarking. In summary, our study on facial dysmorphism on a global sample revealed a considerable cross ancestral phenotypic variability confounding NGP that should be counteracted by international efforts for increasing data diversity. GMDB wi

Published
2024

9. GestaltMatcher Database - A global reference for the facial phenotypic variability of rare human diseases

Author

Lesmann, Hellen, primary, Hustinx, Alexander, additional, Moosa, Shahida, additional, Marchi, Elaine, additional, Caro, Pilar, additional, Abdelrazek, Ibrahim M., additional, Pantel, Jean Tori, additional, Klinkhammer, Hannah, additional, ten Hagen, Merle, additional, Kamphans, Tom, additional, Meiswinkel, Wolfgang, additional, Li, Jing-Mei, additional, Javanmardi, Behnam, additional, Knaus, Alexej, additional, Uwineza, Annette, additional, Knopp, Cordula, additional, Tkemaladze, Tinatin, additional, Elbracht, Miriam, additional, Mattern, Larissa, additional, Jamra, Rami Abou, additional, Velmans, Clara, additional, Strehlow, Vincent, additional, Goel, Himanshu, additional, Nunes, Beatriz Carvalho, additional, Vilella, Thainá, additional, Pinheiro, Isabel Furquim, additional, Kim, Chong Ae, additional, Melaragno, Maria Isabel, additional, Barakat, Tahsin Stefan, additional, Nabil, Amira, additional, Suh, Julia, additional, Averdunk, Luisa, additional, Ekure, Ekanem, additional, Graziano, Claudio, additional, Phowthongkum, Prasit, additional, Güzel, Nergis, additional, Haack, Tobias B., additional, Brunet, Theresa, additional, Rudnik-Schöneborn, Sabine, additional, Platzer, Konrad, additional, Borovikov, Artem, additional, Schnabel, Franziska, additional, Heuft, Lara, additional, Herrmann, Vera, additional, Martinez-Monseny, Antonio F., additional, Höller, Matthias, additional, Alaaeldin, Khoshoua, additional, Jezela-Stanek, Aleksandra, additional, Mohamed, Amal, additional, Lasa-Aranzasti, Amaia, additional, Sayer, John A., additional, Hu, Ping, additional, Hanchard, Suzanna E. Ledgister, additional, Elmakkawy, Gehad, additional, Safwat, Sylvia, additional, Ebstein, Frédéric, additional, Krüger, Elke, additional, Küry, Sébastien, additional, Arlt, Annabelle, additional, Marbach, Felix, additional, Netzer, Christian, additional, Kaptain, Sophia, additional, Weiland, Hannah, additional, Li, Dong, additional, Dupuis, Lucie, additional, Mendoza-Londono, Roberto, additional, Houge, Sofia Douzgou, additional, Weis, Denisa, additional, Chung, Brian Hon-Yin, additional, Mak, Christopher C.Y., additional, Devriendt, Koen, additional, Gripp, Karen W., additional, Mücke, Martin, additional, Verloes, Alain, additional, Schaaf, Christian P., additional, Nellåker, Christoffer, additional, Solomon, Benjamin D., additional, Waikel, Rebekah L., additional, Nöthen, Markus M., additional, Abdalla, Ebtesam, additional, Lyon, Gholson J., additional, Krawitz, Peter M., additional, and Hsieh, Tzung-Chien, additional

Published
2023
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12. Homozygous loss-of-function variants in FILIP1 cause autosomal recessive arthrogryposis multiplex congenita

Author

Schnabel, Franziska, primary, Schuler, Elisabeth, additional, Al-Maawali, Almundher, additional, Chaurasia, Ankur, additional, Syrbe, Steffen, additional, Al-Kindi, Adila, additional, Bhav, Gandham SriLakshmi, additional, Shukla, Anju, additional, Altmüller, Janine, additional, Nürnberg, Peter, additional, Banka, Siddharth, additional, Girisha, Katta M, additional, Li, Yun, additional, Wollnik, Bernd, additional, and Yigit, Gökhan, additional

Published
2022
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15. Down syndrome phenotype in a boy with a mosaic microduplication of chromosome 21q22

Author

Schnabel, Franziska, Smogavec, Mateja, Funke, Rudolf, Pauli, Silke, Burfeind, Peter, and Bartels, Iris

Subjects
lcsh:Genetics, lcsh:QH426-470, Mosaicism, Down syndrome, Down syndrome critical region, Case Report, Microduplication, DYRK1A
Abstract

Background Down syndrome, typically caused by trisomy 21, may also be associated by duplications of the Down syndrome critical region (DSCR) on chromosome 21q22. However, patients with small duplications of DSCR without accompanying deletions have rarely been reported. Case presentation Here we report a 5½-year-old boy with clinical features of Down syndrome including distinct craniofacial dysmorphism and sandal gaps as well as developmental delay. Conventional karyotype was normal, whereas interphase FISH analysis revealed three signals for DSCR in approximately 40% of lymphocytes and 80% of buccal mucosa cells. Array-CGH analysis confirmed a 2.56 Mb duplication of chromosome 21q22.13q22.2 encompassing DYRK1A. Conclusion This presents one of the smallest duplications within DSCR leading to a Down syndrome phenotype. Since the dosage sensitive gene DYRK1A is the only duplicated candidate DSCR gene in our patient, this finding supports the hypothesis that DYRK1A contributes to dysmorphic and intellectual features of Down syndrome even in a mosaic state. Open-Access-Publikationsfonds 2018

Published
2018

16. Aplasia cutis congenita in a CDC42‐related developmental phenotype.

Author

Schnabel, Franziska, Kamphausen, Susanne B., Funke, Rudolf, Kaulfuß, Silke, Wollnik, Bernd, and Zenker, Martin

Abstract

Cell division cycle 42 (CDC42) is a small Rho GTPase, which serves as a fundamental intracellular signal node regulating actin cytoskeletal dynamics and several other integral cellular processes. CDC42‐associated disorders encompass a broad clinical spectrum including Takenouchi–Kosaki syndrome, autoinflammatory syndromes and neurodevelopmental phenotypes mimicking RASopathies. Dysregulation of CDC42 signaling by genetic defects in either DOCK6 or ARHGAP31 is also considered to play a role in the pathogenesis of Adams–Oliver syndrome (AOS). Here, we report a mother and her child carrying the previously reported pathogenic CDC42 variant c.511G>A (p.Glu171Lys). Both affected individuals presented with short stature, distinctive craniofacial features, pectus deformity as well as heart and eye anomalies, similar to the recently described Noonan syndrome‐like phenotype associated with this variant. Remarkably, one of the patients additionally exhibited aplasia cutis congenita of the scalp. Multi‐gene panel sequencing of the known AOS‐causative genes and whole exome sequencing revealed no second pathogenic variant in any disease‐associated gene explaining the aplasia cutis phenotype in our patient. This observation further expands the phenotypic spectrum of CDC42‐associated disorders and underscores the role of CDC42 dysregulation in the pathogenesis of aplasia cutis congenita. [ABSTRACT FROM AUTHOR]

Published
2021
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17. Premature aging disorders: A clinical and genetic compendium.

Author

Schnabel, Franziska, Kornak, Uwe, and Wollnik, Bernd

Subjects
*PREMATURE aging (Medicine), *GENETIC disorders, *PROGERIA, *AGE, *MOLECULAR genetics
Abstract

Progeroid disorders make up a heterogeneous group of very rare hereditary diseases characterized by clinical signs that often mimic physiological aging in a premature manner. Apart from Hutchinson‐Gilford progeria syndrome, one of the best‐investigated progeroid disorders, a wide spectrum of other premature aging phenotypes exist, which differ significantly in their clinical presentation and molecular pathogenesis. Next‐generation sequencing (NGS)‐based approaches have made it feasible to determine the molecular diagnosis in the early stages of a disease. Nevertheless, a broad clinical knowledge on these disorders and their associated symptoms is still fundamental for a comprehensive patient management and for the interpretation of variants of unknown significance from NGS data sets. This review provides a detailed overview on characteristic clinical features and underlying molecular genetics of well‐known as well as only recently identified premature aging disorders and also highlights novel findings towards future therapeutic options. [ABSTRACT FROM AUTHOR]

Published
2021
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18. Expanding the phenotype and genotype spectrum of TAOK1 neurodevelopmental disorder and delineating TAOK2 neurodevelopmental disorder.

Author

Elkhateeb N, Crookes R, Spiller M, Pavinato L, Palermo F, Brusco A, Parker M, Park SM, Mendes AC, Saraiva JM, Hammer TB, Nazaryan-Petersen L, Barakat TS, Wilke M, Bhoj E, Ahrens-Nicklas RC, Li D, Nomakuchi T, Brilstra EH, Hunt D, Johnson D, Mansour S, Oprych K, Mehta SG, Platzer K, Schnabel F, Kiep H, Faust H, Prinzing G, Wiltrout K, Radley JA, Serrano Russi AH, Atallah I, Campos-Xavier B, Amor DJ, Morgan A, Fagerberg C, Andersen UA, Andersen CB, Bijlsma EK, Bird LM, Mullegama SV, Green A, Isidor B, Cogné B, Kenny J, Lynch SA, Quin S, Low K, Herget T, Kortüm F, Levy RJ, Morrison JL, Wheeler PG, Narumanch TC, Peron K, Matthews N, Uhlman J, Bell L, Pang L, Scurr I, Belles RS, Salbert BA, Schaefer GB, Green S, Ros A, Rodríguez-Palmero A, Višnjar T, Writzl K, Vasudevan PC, and Balasubramanian M

Abstract

Purpose: The TAOK proteins are a group of serine/threonine-protein kinases involved in signalling pathways, cytoskeleton regulation, and neuronal development. TAOK1 variants are associated with a neurodevelopmental disorder (NDD) characterized by distinctive facial features, hypotonia and feeding difficulties. TAOK2 variants have been reported to be associated with autism and early-onset obesity. However, a distinct TAOK2-NDD has not yet been delineated., Methods: We retrospectively studied the clinical and genetic data of individuals recruited from several centres with TAOK1 and TAOK2 variants that were detected through exome and genome sequencing., Results: We report 50 individuals with TAOK1 variants with associated phenotypes including neurodevelopmental abnormalities (100%), macrocephaly (83%) and hypotonia (58%). We report male genital anomalies and hypoglycaemia as novel phenotypes. Thirty-seven unique TAOK1 variants were identified. Most of the missense variants clustered in the protein kinase domain at residues that are intolerant to missense variation. We report ten patients with TAOK2 variants with associated phenotypes including neurodevelopmental abnormalities (100%), macrocephaly (75%), autism (75%), and obesity (70%)., Conclusion: We describe the largest cohort of TAOK1-NDD to date, expanding its phenotype and genotype spectrum with thirty novel variants. We delineate the phenotype of a novel TAOK2-NDD associated with neurodevelopmental abnormalities, autism, macrocephaly, and obesity., (Copyright © 2024. Published by Elsevier Inc.)

Published
2024
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19. GestaltMatcher Database - A global reference for facial phenotypic variability in rare human diseases.

Author

Lesmann H, Hustinx A, Moosa S, Klinkhammer H, Marchi E, Caro P, Abdelrazek IM, Pantel JT, Hagen MT, Thong MK, Mazlan RAB, Tae SK, Kamphans T, Meiswinkel W, Li JM, Javanmardi B, Knaus A, Uwineza A, Knopp C, Tkemaladze T, Elbracht M, Mattern L, Jamra RA, Velmans C, Strehlow V, Jacob M, Peron A, Dias C, Nunes BC, Vilella T, Pinheiro IF, Kim CA, Melaragno MI, Weiland H, Kaptain S, Chwiałkowska K, Kwasniewski M, Saad R, Wiethoff S, Goel H, Tang C, Hau A, Barakat TS, Panek P, Nabil A, Suh J, Braun F, Gomy I, Averdunk L, Ekure E, Bergant G, Peterlin B, Graziano C, Gaboon N, Fiesco-Roa M, Spinelli AM, Wilpert NM, Phowthongkum P, Güzel N, Haack TB, Bitar R, Tzschach A, Rodriguez-Palmero A, Brunet T, Rudnik-Schöneborn S, Contreras-Capetillo SN, Oberlack A, Samango-Sprouse C, Sadeghin T, Olaya M, Platzer K, Borovikov A, Schnabel F, Heuft L, Herrmann V, Oegema R, Elkhateeb N, Kumar S, Komlosi K, Mohamed K, Kalantari S, Sirchia F, Martinez-Monseny AF, Höller M, Toutouna L, Mohamed A, Lasa-Aranzasti A, Sayer JA, Ehmke N, Danyel M, Sczakiel H, Schwartzmann S, Boschann F, Zhao M, Adam R, Einicke L, Horn D, Chew KS, Kam CC, Karakoyun M, Pode-Shakked B, Eliyahu A, Rock R, Carrion T, Chorin O, Zarate YA, Conti MM, Karakaya M, Tung ML, Chandra B, Bouman A, Lumaka A, Wasif N, Shinawi M, Blackburn PR, Wang T, Niehues T, Schmidt A, Roth RR, Wieczorek D, Hu P, Waikel RL, Ledgister Hanchard SE, Elmakkawy G, Safwat S, Ebstein F, Krüger E, Küry S, Bézieau S, Arlt A, Olinger E, Marbach F, Li D, Dupuis L, Mendoza-Londono R, Houge SD, Weis D, Chung BH, Mak CCY, Kayserili H, Elcioglu N, Aykut A, Şimşek-Kiper PÖ, Bögershausen N, Wollnik B, Bentzen HB, Kurth I, Netzer C, Jezela-Stanek A, Devriendt K, Gripp KW, Mücke M, Verloes A, Schaaf CP, Nellåker C, Solomon BD, Nöthen MM, Abdalla E, Lyon GJ, Krawitz PM, and Hsieh TC

Abstract

The most important factor that complicates the work of dysmorphologists is the significant phenotypic variability of the human face. Next-Generation Phenotyping (NGP) tools that assist clinicians with recognizing characteristic syndromic patterns are particularly challenged when confronted with patients from populations different from their training data. To that end, we systematically analyzed the impact of genetic ancestry on facial dysmorphism. For that purpose, we established the GestaltMatcher Database (GMDB) as a reference dataset for medical images of patients with rare genetic disorders from around the world. We collected 10,980 frontal facial images - more than a quarter previously unpublished - from 8,346 patients, representing 581 rare disorders. Although the predominant ancestry is still European (67%), data from underrepresented populations have been increased considerably via global collaborations (19% Asian and 7% African). This includes previously unpublished reports for more than 40% of the African patients. The NGP analysis on this diverse dataset revealed characteristic performance differences depending on the composition of training and test sets corresponding to genetic relatedness. For clinical use of NGP, incorporating non-European patients resulted in a profound enhancement of GestaltMatcher performance. The top-5 accuracy rate increased by +11.29%. Importantly, this improvement in delineating the correct disorder from a facial portrait was achieved without decreasing the performance on European patients. By design, GMDB complies with the FAIR principles by rendering the curated medical data findable, accessible, interoperable, and reusable. This means GMDB can also serve as data for training and benchmarking. In summary, our study on facial dysmorphism on a global sample revealed a considerable cross ancestral phenotypic variability confounding NGP that should be counteracted by international efforts for increasing data diversity. GMDB will serve as a vital reference database for clinicians and a transparent training set for advancing NGP technology.

Published
2024
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