Marco Castori

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This study focused on two siblings, a 14-year-old boy and his 4-year-old sister, who faced severe developmental challenges, including muscle weakness and difficulty with basic functions like eating and walking. Researchers found a specific genetic change in the UNC80 gene that contributed to their condition, which is linked to a rare syndrome. This is important because it shows how combining different genetic testing methods can help diagnose complex rare diseases more accurately. Who this helps: This benefits patients with rare genetic conditions and their families by improving diagnosis and understanding of their illnesses.

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This study examined a rare genetic variant causing ADNP syndrome, which is a developmental disorder, in a 24-year-old woman. The researchers identified a new genetic mutation, designated as p.(Ser802Phe), that has been linked to various complications, including intellectual disability and severe behavioral issues. They found that this mutation affects how the ADNP protein interacts with DNA, suggesting it may behave differently than previously thought, which is important for understanding this syndrome better. Who this helps: This helps patients with ADNP syndrome and their families by providing clearer insights into the genetic causes of their symptoms.

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This study looked at three adults with specific changes in the CACNA1A gene, which is linked to various neurological disorders, including developmental and epileptic encephalopathy (DEE). The researchers found that even though these individuals had the same genetic changes, their symptoms varied widely; for example, one pair of siblings had different levels of severity in their symptoms. This matters because it shows that understanding these differences can improve personalized care and treatment for patients with similar genetic conditions. Who this helps: Patients with CACNA1A-related disorders and their doctors.

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This research focused on three siblings with intellectual disability linked to a deletion in the ASH1L gene, which plays a crucial role in brain development. The researchers found that both parents did not carry the deletion, indicating that one parent may have a hidden version of the mutation in their reproductive cells. This discovery suggests that different genetic disorders related to ASH1L may actually be the same and highlights the possibility that the genetic issue could recur in future children, even if there are no signs in the parents. Who this helps: This information benefits families with a history of intellectual disabilities and doctors working in genetics and developmental disorders.

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This study looked at genetic changes in a protein called ERF and how they relate to various health issues in a 10-year-old girl, as well as three other cases with similar problems. Researchers found that specific genetic changes in ERF were linked to conditions like microcephaly (small head size), developmental delays, and skeletal issues. They discovered that these changes disrupt the interaction between ERF and another protein, which may lead to these developmental problems. Who this helps: This helps patients with developmental disorders and their families by improving understanding of their conditions.

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This study looked at 24 Italian patients with hypophosphatemic rickets, a rare bone disorder caused by low phosphorus levels. Researchers found that many patients had high serum alkaline phosphatase and low vitamin D, with 76% experiencing short stature and over 85% dealing with bone deformities. The findings show the genetic variations linked to this condition, helping to improve diagnosis and care for affected individuals. Who this helps: This research helps patients with rickets and their doctors by providing better diagnostic tools.

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This study looked at a 51-year-old patient who experienced severe bleeding while taking warfarin, a common blood thinner used in people with artificial heart valves. After switching to a different medication called apixaban and adding aspirin, the patient had no further bleeding episodes, and blood tests showed significant improvement over a year. This finding is important because it highlights an effective alternative treatment for patients who are sensitive to warfarin due to a genetic variant. Who this helps: This benefits patients with mechanical heart valves who have warfarin hypersensitivity.

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This study looked at the long-term effects of a treatment called asfotase alfa for children with hypophosphatasia (HPP), a rare genetic bone disorder. Researchers found that after starting treatment, there was a significant improvement in the children's symptoms—including skeletal issues and bone fragility—over a period of 6 years with no major safety concerns. These findings are important because they show that asfotase alfa is a reliable option for helping children with HPP manage their condition effectively. Who this helps: This helps children with hypophosphatasia and their doctors.

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This study looked at two Italian families with a genetic condition that affects brain development and causes problems like learning difficulties and epilepsy. After more than ten years of monitoring, researchers found that cognitive ability declined over time in the patients, even though their seizures were under control. These findings highlight the need for ongoing monitoring of brain activity to better understand the disease and improve treatment options for patients. Who this helps: This research benefits patients with GRIN2A-related disorders and their families.

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This study focused on a rare condition called kyphoscoliotic Ehlers-Danlos syndrome (kEDS), which is caused by mutations in a gene called PLOD1. Researchers examined a 7-year-old boy with symptoms of this syndrome and discovered that a specific genetic change (c.1756-13C > A) was causing problems with how his body produced certain proteins. Their findings showed that this genetic variant led to significant changes in gene function, highlighting the effectiveness of using blood analysis to quickly understand these complex genetic issues. Who this helps: This helps patients with kyphoscoliotic Ehlers-Danlos syndrome and their doctors in understanding and managing the condition.

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This study looked at the genetic testing results of 363 families with hereditary heart conditions. Researchers found that 22% of these families had genes that were likely harmful, while 26% had variants of uncertain significance (VUS). By organizing these VUS into categories based on their likelihood of being harmful, the study showed that some could potentially be reclassified as harmful using strict clinical criteria and additional RNA data. Who this helps: This helps doctors and genetic counselors better interpret genetic tests for patients with hereditary heart conditions.

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This study looked at a new way to grow cells in 3D to better understand how vascular Ehlers-Danlos syndrome (vEDS) develops. Researchers found that in cells from people with vEDS, certain genes were more active, indicating issues with how cells respond to stress and maintain their structure, while other genes important for cell movement were less active. These findings help expand our understanding of the disease and point to new areas to explore for potential treatments. Who this helps: This helps patients with vascular Ehlers-Danlos syndrome and healthcare providers seeking better treatment options.

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This study focused on a rare genetic disorder called ring chromosome 20 syndrome, which causes severe epilepsy and cognitive issues in patients. The research highlighted a 38-year-old woman whose seizures improved when she entered REM sleep, suggesting that this sleep phase might help reduce her seizures. They found that taking melatonin helped her achieve REM sleep, leading to fewer seizures, which is important because it points to a potential new treatment approach for people with similar epilepsy conditions. Who this helps: This helps patients with drug-resistant epilepsy, particularly those with ring chromosome 20 syndrome.

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This study examined a rare genetic condition called familial hypocalciuric hypercalcemia (FHH), which causes high levels of calcium in the blood due to a specific gene mutation in the calcium-sensing receptor. The researchers discovered a new variant, identified as c.496A>C, in a man and his father, both of whom had high blood calcium but showed no symptoms. Understanding this genetic change is important because it adds to existing knowledge about FHH and highlights the importance of thorough medical evaluations for patients with unexplained high calcium levels. Who this helps: This benefits patients experiencing unexplained high calcium levels and their doctors.

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This study focused on understanding how different variations in the ALPL gene affect people with a rare bone and nerve disorder called hypophosphatasia (HPP). Researchers tested 21 specific gene variants and found that most of them reduced the protein's function, which is crucial for bone and nerve health. Their findings show that over 70% of these variations align with clinical data, helping doctors better diagnose this complex condition. Who this helps: This helps patients with hypophosphatasia and their doctors by improving the accuracy of genetic diagnoses.

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This study looked at Otofaciocervical Syndrome (OTFCS), a rare condition affecting the face, hearing, and shoulders, and its similarities with another condition called Branchiootorenal Spectrum Disorders (BORSD). Researchers found that all reported patients with OTFCS had kidney issues, indicating these two disorders may not be separate but rather part of the same group. This is important because it highlights the need for better follow-up care and genetic counseling for patients with these related conditions. Who this helps: This finding benefits patients with OTFCS and BORSD, their families, and healthcare providers.

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This study looked at the genetic disorder known as hereditary multiple osteochondromas (HMO) and its potential connection to a type of blood cancer called acute lymphoblastic leukemia (ALL). Researchers found a third patient with both HMO and leukemia, hinting that certain genes (EXT1 and EXT2) might play a role in developing blood cancers by affecting how blood cells grow and function. Understanding this relationship is important because it could help identify patients at risk for leukemia who also have HMO, allowing for earlier diagnosis and better treatment options. Who this helps: This helps patients with HMO and their doctors in managing cancer risks.

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This study examined the lifetime risks of individuals with familial cerebral cavernous malformations (FCMs) experiencing symptomatic hemorrhages (bleeding) or seizures. It found that about 80% of these patients face a risk of bleeding and roughly 45% face a risk of seizures over their lifetimes. Those with certain genetic variations showed more severe bleeding issues compared to others. Understanding these risks is crucial for better patient management and care. Who this helps: This research benefits patients with FCM and their healthcare providers.

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This study looked at two specific changes in the SKI gene that are linked to Shprintzen-Goldberg Syndrome (SGS), a condition affecting the face, brain development, and heart health. Researchers found that these changes, specifically Gly117Ser and Thr180Met, cause changes in the structure of a protein produced by the SKI gene, leading to increased activity in a certain cell signaling pathway and changes in how cells grow and divide. Understanding these changes is important because it helps in recognizing and interpreting the genetic factors of this syndrome, which can improve diagnosis and treatment. Who this helps: This benefits patients with Shprintzen-Goldberg Syndrome and their healthcare providers.

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This study explored the small blood vessels and skin thickness in adults with hypermobile Ehlers-Danlos Syndrome (hEDS), a genetic condition that causes flexible joints and fragile skin. Researchers found that while the small blood vessels in hEDS patients appeared normal in structure and function, there was a higher incidence of small bleeding spots, and skin thickness was generally thinner, particularly on the feet and chest. These findings suggest that people with hEDS experience some fragility in their blood vessels and have thinner skin, which is important for understanding their health needs and potential complications. Who this helps: This helps patients with hypermobile Ehlers-Danlos Syndrome and their doctors.

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This study looked at a rare brain disease called familial cerebral cavernous malformation (fCCM), which can lead to serious issues like bleeding in the brain and seizures. The researchers analyzed blood samples from 71 patients with fCCM and 17 healthy individuals, finding several proteins that were present at different levels in patients, including sCD14 and CCL5, which can indicate the severity of the disease. These findings are important because they offer potential ways to predict disease progression and identify new treatments. Who this helps: Patients with familial cerebral cavernous malformation.

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This study looked at how patients with familial cerebral cavernous malformations (FCCMs) reported their mental health and quality of life while taking the medication propranolol compared to standard care. Of the 71 participants, 31.7% were depressed at the start, but that number decreased to 28.6% in the propranolol group after two years, while it increased to 55.5% in the standard care group. Overall, patients on propranolol experienced less depression after two years, even though their physical and mental quality of life did not show significant improvement compared to the general population. Who this helps: This helps FCCM patients by offering insight into managing their depression through propranolol treatment.

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This research looked at a specific genetic mutation in the SRCAP gene linked to DEHMBA syndrome, which includes issues like developmental delays and sleep disorders. The study found a new variant in a young man with DEHMBA syndrome, revealing that over 40% of his genetic data showed abnormal patterns. This matters because it highlights a new way to diagnose rare genetic conditions and suggests that sleep problems might be more common in patients with DEHMBA syndrome than previously thought. Who this helps: This helps patients with DEHMBA syndrome and their healthcare providers.

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This study looked at a 6-year-old boy with O'Donnell-Luria-Rodan (ODLURO) syndrome, a genetic disorder that can cause delays in development, autism, epilepsy, and other issues. Researchers found that a specific mutation in his gene, called c.186G>A, affects how the gene works and leads to problems in its function, specifically causing a part of the gene to be skipped. This matters because understanding how this mutation causes symptoms can help in diagnosing and managing ODLURO syndrome in patients. Who this helps: This helps patients with ODLURO syndrome and their families by providing insights into the genetic factors of the condition.

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This study looked at five children with different lymphatic malformations in their heads and necks, which can lead to severe disfigurement and complicated treatment. The researchers found that working together as a team of specialists helped improve the children’s overall care and quality of life, even if complete healing was rare. The study emphasizes the importance of sending patients to expert centers, which can reduce stress for families and provide better treatment options. Who this helps: This helps patients with lymphatic malformations and their families by improving care and support.

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This study looked at genetic disorders linked to mutations in the LZTR1 gene, focusing on conditions like Noonan syndrome and schwannomatosis. Researchers compiled data from 174 patients and added two new adult cases, showing a wide range of symptoms—from mild to severe—associated with these disorders. This information is important because understanding these variations can lead to better diagnosis and treatment options for affected individuals. Who this helps: Patients and doctors managing genetic disorders.

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This study looked at a genetic variant called LZTR1 in people with multiple café-au-lait macules, which are benign brown spots on the skin. The researchers found that 6% of the 849 participants had a specific variant of LZTR1, which is higher than what you would find in the general population. This discovery matters because it ties these skin spots to a genetic condition that can also lead to more serious issues like tumors, providing better understanding and potentially guiding medical care for affected individuals. Who this helps: This helps patients with multiple café-au-lait macules and their doctors by identifying a genetic factor linked to their condition.

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This study looked at two siblings who developed a serious neurological condition due to inheriting two specific genetic changes from their parents. They responded well to a treatment called levetiracetam, and researchers found that the combination of the two genetic changes led to a mild reduction in sodium channel function in their cells. This finding is important because it helps explain why the parents were not affected, and it sheds light on the genetic causes of similar conditions. Who this helps: This helps patients with developmental and epileptic disorders, their families, and doctors in understanding the genetic basis of their conditions.

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This study looked at a genetic change in the TBX3 gene linked to ulnar-mammary syndrome (UMS), which causes problems with limb and gland development. Researchers found that a specific variant in the TBX3 gene was responsible for severe limb defects in a fetus, and they tested this using fruit flies to understand how different TBX3 mutations affect development. Understanding these genetic effects is important for better diagnosing UMS and recognizing its symptoms early, especially since it often involves noticeable issues before puberty, like limb deformities and underdeveloped nipples. Who this helps: Patients with ulnar-mammary syndrome and their families.

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This study looked at how to better support young people with Osteogenesis Imperfecta (OI), a genetic condition that makes bones fragile, as they transition from pediatric to adult healthcare. It found that current strategies for helping patients adapt to adult care are lacking, with many needed improvements suggested, such as personalized transition plans and collaboration between various medical specialists. This matters because effective transition strategies can greatly improve health outcomes for OI patients as they grow up. Who this helps: This helps patients with Osteogenesis Imperfecta and their healthcare providers.

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This research focused on Opitz syndrome, a genetic disorder caused by changes in the MID1 gene, particularly looking at how certain variants within the gene affect its function. The study found that a specific variant in a 2-year-old boy, as well as two other previously identified variants, could significantly alter the MID1 protein, leading to a reclassification of these variants from unclear to likely harmful. This is important because it improves the understanding and diagnosis of Opitz syndrome, allowing doctors to better assess genetic risks for patients. Who this helps: This helps patients with Opitz syndrome and their families by providing clearer genetic information.

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This study looked at blood samples from two people with developmental disorders to understand the role of a specific gene called MAP4K4. The researchers found two new changes in this gene that disrupt its normal function, which they believe contributes to the development of autism. These findings highlight the importance of using advanced genetic testing to identify and understand rare genetic causes of neurodevelopmental disorders. Who this helps: Patients with autism and their families may benefit from more accurate diagnoses and potential targeted treatments.

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This study examined a gene called DYNC2H1, which is linked to various skeletal disorders. Researchers analyzed DNA from 25 families and found harmful changes in the DYNC2H1 gene in eight individuals, including two identical twins. They discovered that these changes are associated with conditions like Ellis-van Creveld syndrome and other related disorders, suggesting that DYNC2H1 mutations can cause these conditions more often than previously thought. Who this helps: This research benefits patients with DYNC2H1-related skeletal disorders and their families by improving diagnosis and understanding of their conditions.

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This study examined how certain protein receptors, called protease-activated receptors (PARs), behave in cells from patients with sporadic cerebral cavernous malformation (CCM), a disease affecting blood vessels in the brain. Researchers found that these cells had higher levels of PARs and other related proteins, which can lead to increased inflammation and leakage in the brain's blood vessels. This matters because it highlights a potential mechanism behind CCM that could lead to new treatments for managing the condition, as well as insights into related issues like neuroinflammation. Who this helps: This helps patients with cerebral cavernous malformation and related vascular diseases.

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This study focused on improving how doctors interpret genetic changes in collagen genes linked to joint hypermobility, a common reason for genetic testing in connective tissue disorders. The researchers created new guidelines and tested them on 209 genetic variants, finding that these updates helped better identify harmful variants without causing confusion around certain genetic changes. This is important because it helps doctors provide clearer answers to patients and can lead to better management of their conditions. Who this helps: This helps doctors and patients with connective tissue disorders.

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This study focused on identifying unique DNA patterns, called episignatures, that can help diagnose specific neurodevelopmental disorders linked to genetic changes. Researchers found distinct episignatures for KAT6A syndrome and two other related disorders, which improved the accuracy of diagnosis by making it easier to tell them apart. This matters because it helps doctors provide better care and support for patients facing these complex conditions. Who this helps: Patients and doctors working with individuals diagnosed with neurodevelopmental disorders.

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This study looks at joint hypermobility (JHM), a common physical trait that can lead to musculoskeletal pain and is linked with various disorders. Researchers reviewed recent literature to clarify how JHM is classified and diagnosed, noting that the hypermobile Ehlers-Danlos syndrome (HEDS) does not yet have a specific test, making it difficult to identify. Understanding JHM better is important because it affects how patients are diagnosed and treated for related health issues. Who this helps: This research benefits patients who experience joint hypermobility and related pain, as well as their doctors.

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This study focused on understanding hypophosphatasia (HPP), a rare genetic condition, in a group of 33 patients in Italy. Researchers found 21 different genetic changes related to HPP in 20 patients, and discovered three additional cases through advanced genetic testing. The study highlights the importance of using specific blood test results, like low ALP and high Vitamin B6 levels, to accurately identify the disease and avoid incorrect treatments. Who this helps: This benefits patients with hypophosphatasia and their doctors by improving diagnosis and treatment approaches.

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This study looked at a serious condition called osteocraniostenosis (OCS), which affects the bones and skull shape of fetuses and newborns, often leading to severe health issues. The researchers found two new cases of OCS and identified specific genetic mutations associated with this condition, which helps improve understanding of its diagnosis. This is important because knowing more about the genetic causes and characteristics of OCS can lead to better prenatal detection and care options for affected children. Who this helps: Patients and their families facing osteocraniostenosis.

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This study looked at a rare genetic mutation in a gene called COX5A, which is important for energy production in cells. Researchers found this mutation in an 11-year-old girl who had issues like poor growth, low blood sugar, and increased levels of lactic acid, but her symptoms were less severe than those seen in previous cases. This finding shows that mutations in COX5A can cause mitochondrial disease, but they can also lead to milder forms of the condition, which helps expand our understanding of the disease and its impacts. Who this helps: This helps patients and their families by providing more information on potential medical conditions and their variations.

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This study looked at uncommon genetic changes in two specific collagen genes, COL1A1 and COL3A1, which are linked to disorders known as Ehlers-Danlos syndrome. The researchers examined 29 people with these rare genetic changes and found that they experienced symptoms from both classical and vascular types of Ehlers-Danlos syndrome, such as risk of serious complications related to blood vessels and pregnancy. Understanding these variants helps improve diagnosis and treatment for affected individuals, who have often faced challenges due to uncertainty about their condition. Who this helps: This helps patients with Ehlers-Danlos syndrome and their healthcare providers.

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This study focused on creating a special type of stem cell from a person with cardiospondylocarpofacial syndrome, caused by a specific genetic change in the MAP3K7 gene. Researchers were able to turn skin cells from the patient into induced pluripotent stem cells that keep the original genetic information and can develop into different types of cells in the body. This is important because it opens up possibilities for studying the syndrome and developing potential treatments. Who this helps: This benefits researchers and doctors working to understand and treat genetic disorders.

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This study looked at changes in gene activity in mouse cells that could help understand a rare genetic disorder called cerebral cavernous malformations (CCM), which can lead to headaches, seizures, and strokes. Researchers found 94 genes that were expressed differently in the cells, indicating that inflammation and how the body recognizes pathogens are important factors in the disease. These findings could lead to better treatment strategies by highlighting new areas to target for managing CCM. Who this helps: Patients with cerebral cavernous malformations and their families.

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This study looked at a small RNA molecule called miR-200c-3p and its role in achalasia, a condition that affects the swallowing process due to problems with the esophagus. Researchers found that lower levels of miR-200c-3p in patients with achalasia linked to higher levels of certain genes, specifically genes associated with muscle function in the esophagus. These findings are important because they point to a specific mechanism that could help us understand how achalasia develops and suggest new treatment avenues. Who this helps: This research helps patients with achalasia and their doctors by providing insights into the disease's underlying causes.

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This study looked at a rare genetic condition called Classic Ehlers-Danlos syndrome (cEDS) in an 8-year-old girl, who has flexible joints and stretchy skin. Researchers found a new genetic variant in her father that occurs in a small percentage of his cells, about 4.8%, which may have contributed to her condition. Understanding parental mosaicism like this is important for providing better genetic counseling for families. Who this helps: This helps patients and their families understand the genetic basis of cEDS and informs doctors for future treatment and counseling.