Orphan or Rare Diseases
The COVID-19 pandemic impact on continuity of care provision on rare brain diseases and on ataxias, dystonia and PKU. A scoping review
Orphanet J Rare Dis. 2024 Feb 21;19(1):81. doi: 10.1186/s13023-023-03005-9.
ABSTRACT
One of the most relevant challenges for healthcare providers during the COVID- 19 pandemic has been assuring the continuity of care to patients with complex health needs such as people living with rare diseases (RDs). The COVID-19 pandemic accelerated the healthcare sector's digital transformation agenda. The delivery of telemedicine services instead of many face-to-face procedures has been expanded and, many healthcare services not directly related to COVID-19 treatments shifted online remotely. Many hospitals, specialist centres, patients and families started to use telemedicine because they were forced to. This trend could directly represent a good practice on how care services could be organized and continuity of care could be ensured for patients. If done properly, it could boast improved patient outcomes and become a post COVID-19 major shift in the care paradigm. There is a fragmented stakeholders spectrum, as many questions arise on: how is e-health interacting with 'traditional' healthcare providers; about the role of the European Reference Networks (ERNs); if remote care can retain a human touch and stay patient centric. The manuscript is one of the results of the European Brain Council (EBC) Value of Treatment research project on rare brain disorders focusing on progressive ataxias, dystonia and phenylketonuria with the support of Academic Partners and in collaboration with European Reference Networks (ERNs) experts, applying empirical evidence from different European countries. The main purpose of this work is to investigate the impact of the COVID-19 pandemic on the continuity of care for ataxias, dystonia and phenylketonuria (PKU) in Europe. The analysis carried out makes it possible to highlight the critical points encountered and to learn from the best experiences. Here, we propose a scoping review that investigates this topic, focusing on continuity of care and novel methods (e.g., digital approaches) used to reduce the care disruption. This scoping review was designed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews (PRISMA-ScR) standards. This work showed that the implementation of telemedicine services was the main measure that healthcare providers (HCPs) put in place and adopted for mitigating the effects of disruption or discontinuity of the healthcare services of people with rare neurological diseases and with neurometabolic disorders in Europe.
PMID:38383420 | DOI:10.1186/s13023-023-03005-9
Eosinophilic Fasciitis Illustrated by 18 F-FDG PET/CT
Clin Nucl Med. 2024 Apr 1;49(4):e188-e190. doi: 10.1097/RLU.0000000000005094. Epub 2024 Feb 9.
ABSTRACT
Eosinophilic fasciitis is a rare sclerodermiform disease characterized by upper and lower limb edema. We present the case of a 71-year-old woman currently hospitalized for painful lower limb edema. Laboratory tests reveal moderate eosinophilia (0.8 g/L) and an inflammatory syndrome. Abdominopelvic ultrasound reveals no abnormalities. In light of the unexplained inflammatory syndrome, a 18 F-FDG PET/CT scan currently shows intense hypermetabolism of the fasciae in the lower and upper limbs. Following an MRI, a biopsy is performed, and the anatomopathology currently confirms eosinophilic fasciitis.
PMID:38377376 | DOI:10.1097/RLU.0000000000005094
Inflammation drives pathogenesis of early intestinal failure-associated liver disease
Sci Rep. 2024 Feb 20;14(1):4240. doi: 10.1038/s41598-024-54675-9.
ABSTRACT
Patients with intestinal failure who receive long-term parenteral nutrition (PN) often develop intestinal failure-associated liver disease (IFALD). Although there are identified risk factors, the early pathogenesis is poorly understood and treatment options are limited. Here, we perform a transcriptomic analysis of liver tissue in a large animal IFALD model to generate mechanistic insights and identify therapeutic targets. Preterm Yorkshire piglets were provided PN or bottle-fed with sow-milk replacer for 14 days. Compared to bottle-fed controls, piglets receiving PN developed biochemical cholestasis by day of life 15 (total bilirubin 0.2 vs. 2.9 mg/dL, P = 0.01). RNA-Seq of liver tissue was performed. Ingenuity Pathway Analysis identified 747 differentially expressed genes (343 upregulated and 404 downregulated) with an adjusted P < 0.05 and a fold-change of > |1|. Enriched canonical pathways were identified, demonstrating broad activation of inflammatory pathways and inhibition of cell cycle progression. Potential therapeutics including infliximab, glucocorticoids, statins, and obeticholic acid were identified as predicted upstream master regulators that may reverse the PN-induced gene dysregulation. The early driver of IFALD in neonates may be inflammation with an immature liver; identified therapeutics that target the inflammatory response in the liver should be investigated as potential treatments.
PMID:38378873 | DOI:10.1038/s41598-024-54675-9
Europäische Referenznetzwerke stehen mit Rat und Tat zur Seite : Austausch mit spezialisierten Kolleginnen und Kollegen zu Fällen von seltenen Erkrankungen
MMW Fortschr Med. 2024 Feb;166(Suppl 1):48. doi: 10.1007/s15006-024-3632-x.
NO ABSTRACT
PMID:38376686 | DOI:10.1007/s15006-024-3632-x
New Chinese databases are a boost for rare-disease science
Nature. 2024 Feb;626(8000):716. doi: 10.1038/d41586-024-00515-9.
NO ABSTRACT
PMID:38374433 | DOI:10.1038/d41586-024-00515-9
RegistrAME: the Spanish self-reported patient registry of spinal muscular atrophy
Orphanet J Rare Dis. 2024 Feb 19;19(1):76. doi: 10.1186/s13023-024-03071-7.
ABSTRACT
BACKGROUND: Spinal Muscular Atrophy (SMA) is a rare neuromuscular disorder characterized by progressive degeneration of motor neurons and muscle weakness resulting in premature death or severe motor disability. Over the last decade, SMA has dramatically changed thanks to new advances in care and the emergence of disease-specific treatments. RegistrAME is a self-reported specific disease registry with an accurate curation system. It has collected data on SMA patients in Spain since 2015, gathering demographic, clinical, and patient-reported outcome data, all of which are patient-relevant. RegistrAME is part of the TREAT NMD network. This study aims to describe the advantages and disadvantages of a self-reported SMA registry, as well as the different variables of interest in the health status of RegistrAME patients.
RESULTS: In total, 295 living patients with a confirmed diagnosis of SMA-5q were included (aged 1 to 77 years; mean 20.28). Half of the patients (50.2%) were ≥ 16 years old; 22.03% were type 1, 48.47% were type 2, 28.82% were type 3, and 0.7% were type 4. All functional statuses (non-sitter, sitter, and walkers) could be observed in each SMA type. Adult patients harbored the least aggressive SMA types, however, they presented the greatest level of disability. Patients with SMA type 1 had scoliosis surgery about five years earlier than patients with SMA type 2. None of the type 1 patients who achieved ambulation were wheelchair-free outdoors. This was also evident in 62.5% of type 2 walker patients and 44% of type 3 walker patients. Of the SMA type 1 patients, 40% had a gastrostomy (of which 84% had two SMN2 copies). One in five children with SMA type 1 (one to seven years of age) were ventilation-free.
CONCLUSIONS: The information provided by RegistrAME in a "real-world" setting allows better management of family expectations, an adequate approach to the disease and patients' needs, as well as a better understanding of the impact of the disease. It also helps monitor the evolution of care, which will result in the need for updated guidelines.
PMID:38373977 | DOI:10.1186/s13023-024-03071-7
Factors affecting overall care experience for people living with rare conditions in the UK: exploratory analysis of a quantitative patient experience survey
Orphanet J Rare Dis. 2024 Feb 19;19(1):77. doi: 10.1186/s13023-024-03081-5.
ABSTRACT
BACKGROUND: Although individually rare, collectively, rare conditions are common and affect a large number of people and are often chronic, life threatening and affect multiple body systems; the majority of them have no effective treatment. The literature has identified many specific challenges for those living with rare conditions, however, we do not know which of these in combination are most likely to impact how someone rates their overall experience of care. The aim of this study is to do further exploratory analysis of the Genetic Alliance UK 2020 Rare Experience survey data to identify which variables are most strongly associated with respondents' overall care experience.
RESULTS: There were strong associations between most of the selected survey variables and the overall rated experience of care variable. In the multiple linear regression only nine variables remained in the best fit model: 'Trust and confidence in hospital staff involved in ongoing care'; 'Satisfaction with information provided by healthcare professionals-following diagnosis'; 'The professionals providing care work as a team'; 'Feel care is coordinated effectively'; 'The timing and frequency of appointments are convenient for the patient/carer/family'; 'Whether or not there is a specific healthcare professional to ask questions of about the rare/undiagnosed condition'; 'Experience of searching for a diagnosis'; 'Knowledge of whether there is a specialist centre for the condition'; and 'Number of different clinics attend for the condition'.
CONCLUSIONS: Our findings indicate the challenges that play the largest part in explaining the varied experiences with rare disease healthcare in the UK for our survey respondents. These challenges should be further investigated with a broader sample of people affected by rare conditions, ideally through the implementation of a comprehensive national rare condition patient registry. Our findings highlight an important potential gap in the Framework, 'trust and confidence in healthcare professionals'; further research is required to fully understand the foundations of trust and confidence.
PMID:38373961 | DOI:10.1186/s13023-024-03081-5
Hybrid unsupervised representation learning and pseudo-label supervised self-distillation for rare disease imaging phenotype classification with dispersion-aware imbalance correction
Med Image Anal. 2024 Apr;93:103102. doi: 10.1016/j.media.2024.103102. Epub 2024 Feb 7.
ABSTRACT
Rare diseases are characterized by low prevalence and are often chronically debilitating or life-threatening. Imaging phenotype classification of rare diseases is challenging due to the severe shortage of training examples. Few-shot learning (FSL) methods tackle this challenge by extracting generalizable prior knowledge from a large base dataset of common diseases and normal controls and transferring the knowledge to rare diseases. Yet, most existing methods require the base dataset to be labeled and do not make full use of the precious examples of rare diseases. In addition, the extremely small size of the training samples may result in inter-class performance imbalance due to insufficient sampling of the true distributions. To this end, we propose in this work a novel hybrid approach to rare disease imaging phenotype classification, featuring three key novelties targeted at the above drawbacks. First, we adopt the unsupervised representation learning (URL) based on self-supervising contrastive loss, whereby to eliminate the overhead in labeling the base dataset. Second, we integrate the URL with pseudo-label supervised classification for effective self-distillation of the knowledge about the rare diseases, composing a hybrid approach taking advantage of both unsupervised and (pseudo-) supervised learning on the base dataset. Third, we use the feature dispersion to assess the intra-class diversity of training samples, to alleviate the inter-class performance imbalance via dispersion-aware correction. Experimental results of imaging phenotype classification of both simulated (skin lesions and cervical smears) and real clinical rare diseases (retinal diseases) show that our hybrid approach substantially outperforms existing FSL methods (including those using a fully supervised base dataset) via effective integration of the URL, pseudo-label driven self-distillation, and dispersion-aware imbalance correction, thus establishing a new state of the art.
PMID:38367598 | DOI:10.1016/j.media.2024.103102
The landscape for rare diseases in 2024
Lancet Glob Health. 2024 Mar;12(3):e341. doi: 10.1016/S2214-109X(24)00056-1.
NO ABSTRACT
PMID:38365397 | DOI:10.1016/S2214-109X(24)00056-1
Cutis verticis gyrata associated with congenital heart disease
BMJ Case Rep. 2024 Feb 15;17(2):e256735. doi: 10.1136/bcr-2023-256735.
ABSTRACT
Cutis verticis gyrata (CVG) is a very rare benign disorder characterised by convoluted folds and deep furrows of the scalp that mimic cerebral sulci and gyri. Associations with other pathologies as neuropsychiatric and/or ophthalmologic disorders, secondary cases to inflammatory or neoplastic processes, as well as cases associated to genetic disorders as Turner's syndrome have been reported, but there is no literature describing an association with a congenital structural heart defect and no other underlying condition. We report a case of primary CVG in a 3-week-old female infant associated with an echocardiographic diagnosis of cor triatriatum. Other systemic examination findings and investigations were unremarkable, and the patient has normal neurodevelopment at 1 year old. Aside from the neuropsychiatric and ophthalmologic pathologies commonly associated with primary non-essential CVG, it should be noted that isolated congenital cardiac lesions are also possible, so as to increase our index of suspicion in patients with the disorder.
PMID:38359953 | DOI:10.1136/bcr-2023-256735
Lived experiences of genetic diagnosis for rare disease patients: a qualitative interview study
Orphanet J Rare Dis. 2024 Feb 14;19(1):68. doi: 10.1186/s13023-024-03058-4.
ABSTRACT
BACKGROUND: Genetic diagnosis is often understood as a single event within the care pathway of rare disease patients. Legal, policy and ethical scholarship focusing on rare diseases and genetic information discusses questions of how to best deal with the process of genetic diagnosis and the communication of genetic information within a given health system. We co-created a research design with rare disease patients and their families in Austria to explore in-depth the experiences of genetic diagnosis for people affected by rare diseases. Our objective was to trace the whole pathway of genetic testing and understand how rare disease patients experience genetic diagnosis as part of their care pathway in the healthcare system.
RESULTS: Data was collected through in-depth semi-structured qualitative interviews with 14 patients with a suspected or diagnosed rare disease or their parents, focusing on their perception of the pathway of genetic diagnosis in Austria. This pathway included the initial triggering of genetic diagnosis, the process of testing and its immediate (communication of results, counselling) and long-term, wider aftermath. Patients missed a clear link to already established forms of care such as their primary care/treating physicians. They also advocate for an integrated and interdisciplinary care pathway.
CONCLUSIONS: Our study underscores the importance of a continuous care and communication pathway spanning from the initial genetic diagnosis process to post-test phases. It further shows the importance of exploring patients' perspectives through qualitative research methods to understand the intricate workings of public health policies and tools. Integrating genetic diagnosis into a broader care trajectory is crucial for a holistic approach to care for rare disease patients who often rely on regular interactions with the healthcare system. Achieving this holistic approach requires collaboration between experts in specific rare disease areas, primary care physicians, and support networks.
PMID:38355619 | PMC:PMC10868115 | DOI:10.1186/s13023-024-03058-4
Genome sequencing as a generic diagnostic strategy for rare disease
Genome Med. 2024 Feb 14;16(1):32. doi: 10.1186/s13073-024-01301-y.
ABSTRACT
BACKGROUND: To diagnose the full spectrum of hereditary and congenital diseases, genetic laboratories use many different workflows, ranging from karyotyping to exome sequencing. A single generic high-throughput workflow would greatly increase efficiency. We assessed whether genome sequencing (GS) can replace these existing workflows aimed at germline genetic diagnosis for rare disease.
METHODS: We performed short-read GS (NovaSeq™6000; 150 bp paired-end reads, 37 × mean coverage) on 1000 cases with 1271 known clinically relevant variants, identified across different workflows, representative of our tertiary diagnostic centers. Variants were categorized into small variants (single nucleotide variants and indels < 50 bp), large variants (copy number variants and short tandem repeats) and other variants (structural variants and aneuploidies). Variant calling format files were queried per variant, from which workflow-specific true positive rates (TPRs) for detection were determined. A TPR of ≥ 98% was considered the threshold for transition to GS. A GS-first scenario was generated for our laboratory, using diagnostic efficacy and predicted false negative as primary outcome measures. As input, we modeled the diagnostic path for all 24,570 individuals referred in 2022, combining the clinical referral, the transition of the underlying workflow(s) to GS, and the variant type(s) to be detected.
RESULTS: Overall, 95% (1206/1271) of variants were detected. Detection rates differed per variant category: small variants in 96% (826/860), large variants in 93% (341/366), and other variants in 87% (39/45). TPRs varied between workflows (79-100%), with 7/10 being replaceable by GS. Models for our laboratory indicate that a GS-first strategy would be feasible for 84.9% of clinical referrals (750/883), translating to 71% of all individuals (17,444/24,570) receiving GS as their primary test. An estimated false negative rate of 0.3% could be expected.
CONCLUSIONS: GS can capture clinically relevant germline variants in a 'GS-first strategy' for the majority of clinical indications in a genetics diagnostic lab.
PMID:38355605 | PMC:PMC10868087 | DOI:10.1186/s13073-024-01301-y
EURO-NMD registry: federated FAIR infrastructure, innovative technologies and concepts of a patient-centred registry for rare neuromuscular disorders
Orphanet J Rare Dis. 2024 Feb 14;19(1):66. doi: 10.1186/s13023-024-03059-3.
ABSTRACT
BACKGROUND: The EURO-NMD Registry collects data from all neuromuscular patients seen at EURO-NMD's expert centres. In-kind contributions from three patient organisations have ensured that the registry is patient-centred, meaningful, and impactful. The consenting process covers other uses, such as research, cohort finding and trial readiness.
RESULTS: The registry has three-layered datasets, with European Commission-mandated data elements (EU-CDEs), a set of cross-neuromuscular data elements (NMD-CDEs) and a dataset of disease-specific data elements that function modularly (DS-DEs). The registry captures clinical, neuromuscular imaging, neuromuscular histopathology, biological and genetic data and patient-reported outcomes in a computer-interpretable format using selected ontologies and classifications. The EURO-NMD registry is connected to the EURO-NMD Registry Hub through an interoperability layer. The Hub provides an entry point to other neuromuscular registries that follow the FAIR data stewardship principles and enable GDPR-compliant information exchange. Four national or disease-specific patient registries are interoperable with the EURO-NMD Registry, allowing for federated analysis across these different resources.
CONCLUSIONS: Collectively, the Registry Hub brings together data that are currently siloed and fragmented to improve healthcare and advance research for neuromuscular diseases.
PMID:38355534 | DOI:10.1186/s13023-024-03059-3
Impact of the COVID-19 Pandemic on People Living With Rare Diseases and Their Families: Results of a National Survey
JMIR Public Health Surveill. 2024 Feb 14;10:e48430. doi: 10.2196/48430.
ABSTRACT
BACKGROUND: With more than 103 million cases and 1.1 million deaths, the COVID-19 pandemic has had devastating consequences for the health system and the well-being of the entire US population. The Rare Diseases Clinical Research Network funded by the National Institutes of Health was strategically positioned to study the impact of the pandemic on the large, vulnerable population of people living with rare diseases (RDs).
OBJECTIVE: This study was designed to describe the characteristics of COVID-19 in the RD population, determine whether patient subgroups experienced increased occurrence or severity of infection and whether the pandemic changed RD symptoms and treatment, and understand the broader impact on respondents and their families.
METHODS: US residents who had an RD and were <90 years old completed a web-based survey investigating self-reported COVID-19 infection, pandemic-related changes in RD symptoms and medications, access to care, and psychological impact on self and family. We estimated the incidence of self-reported COVID-19 and compared it with that in the US population; evaluated the frequency of COVID-19 symptoms according to self-reported infection; assessed infection duration, complications and need for hospitalization; assessed the influence of the COVID-19 pandemic on RD symptoms and treatment, and whether the pandemic influenced access to care, special food and nutrition, or demand for professional psychological assistance.
RESULTS: Between May 2, 2020, and December 15, 2020, in total, 3413 individuals completed the survey. Most were female (2212/3413, 64.81%), White (3038/3413, 89.01%), and aged ≥25 years (2646/3413, 77.53%). Overall, 80.6% (2751/3413) did not acquire COVID-19, 2.08% (71/3413) acquired it, and 16.58% (566/3413) did not know. Self-reported cases represented an annual incidence rate of 2.2% (95% CI 1.7%-2.8%). COVID-19 cases were more than twice the expected (71 vs 30.3; P<.001). COVID-19 was associated with specific symptoms (loss of taste: odds ratio [OR] 38.9, 95% CI 22.4-67.6, loss of smell: OR 30.6, 95% CI 17.7-53.1) and multiple symptoms (>9 symptoms vs none: OR 82.5, 95% CI 29-234 and 5-9: OR 44.8, 95% CI 18.7-107). Median symptom duration was 16 (IQR 9-30) days. Hospitalization (7/71, 10%) and ventilator support (4/71, 6%) were uncommon. Respondents who acquired COVID-19 reported increased occurrence and severity of RD symptoms and use or dosage of select medications; those who did not acquire COVID-19 reported decreased occurrence and severity of RD symptoms and use of medications; those who did not know had an intermediate pattern. The pandemic made it difficult to access care, receive treatment, get hospitalized, and caused mood changes for respondents and their families.
CONCLUSIONS: Self-reported COVID-19 was more frequent than expected and was associated with increased prevalence and severity of RD symptoms and greater use of medications. The pandemic negatively affected access to care and caused mood changes in the respondents and family members. Continued surveillance is necessary.
PMID:38354030 | DOI:10.2196/48430
Treatment of scleredema adultorum of Buschke with intravenous immunoglobulin and mycophenolate mofetil in a 14-year-old girl: a case report
J Med Case Rep. 2024 Feb 14;18(1):93. doi: 10.1186/s13256-024-04427-0.
ABSTRACT
BACKGROUND: Scleredema adultorum of Buschke is a rare disease characterized by firm and non-pitting edema of the skin. The condition is rare with unknown etiology. Diagnosis is made on the basis of clinical findings and skin biopsy.
CASE PRESENTATION: Here, we describe a 14-year-old Iranian girl presenting with non-pitting edema and woody thickening of the skin that progressed within a month. She was evaluated for possible underlying malignancy or connective tissue disorders, which were excluded by multiple laboratory workups. She underwent a skin biopsy which confirmed the diagnosis of scleredema, and she was successfully treated with intravenous immunoglobulin and mycophenolate mofetil.
CONCLUSION: While scleredema adultorum of Buschke is a rare disease with no definite treatment, our effort through this report was to highlight the possible benefits of treatment by intravenous immunoglobulin and mycophenolate mofetil.
PMID:38350929 | PMC:PMC10865568 | DOI:10.1186/s13256-024-04427-0
Recommendations for optimal interdisciplinary management and healthcare settings for patients with rare neurological diseases
Orphanet J Rare Dis. 2024 Feb 13;19(1):62. doi: 10.1186/s13023-024-03023-1.
ABSTRACT
BACKGROUND: In 2017, the German Academy for Rare Neurological Diseases (Deutsche Akademie für Seltene Neurologische Erkrankungen; DASNE) was founded to pave the way for an optimized personalized management of patients with rare neurological diseases (RND) in all age groups. Since then a dynamic national network for rare neurological disorders has been established comprising renowned experts in neurology, pediatric neurology, (neuro-) genetics and neuroradiology. DASNE has successfully implemented case presentations and multidisciplinary discussions both at yearly symposia and monthly virtual case conferences, as well as further educational activities covering a broad spectrum of interdisciplinary expertise associated with RND. Here, we present recommendation statements for optimized personalized management of patients with RND, which have been developed and reviewed in a structured Delphi process by a group of experts.
METHODS: An interdisciplinary group of 37 RND experts comprising DASNE experts, patient representatives, as well as healthcare professionals and managers was involved in the Delphi process. First, an online collection was performed of topics considered relevant for optimal patient care by the expert group. Second, a two-step Delphi process was carried out to rank the importance of the selected topics. Small interdisciplinary working groups then drafted recommendations. In two consensus meetings and one online review round these recommendations were finally consented.
RESULTS: 38 statements were consented and grouped into 11 topics: health care structure, core neurological expertise and core mission, interdisciplinary team composition, diagnostics, continuous care and therapy development, case conferences, exchange / cooperation between Centers for Rare Diseases and other healthcare partners, patient advocacy group, databases, translation and health policy.
CONCLUSIONS: This German interdisciplinary Delphi expert panel developed consented recommendations for optimal care of patients with RND in a structured Delphi process. These represent a basis for further developments and adjustments in the health care system to improve care for patients with RND and their families.
PMID:38347616 | PMC:PMC10863275 | DOI:10.1186/s13023-024-03023-1
GAN-based generation of realistic 3D volumetric data: A systematic review and taxonomy
Med Image Anal. 2024 Apr;93:103100. doi: 10.1016/j.media.2024.103100. Epub 2024 Feb 2.
ABSTRACT
With the massive proliferation of data-driven algorithms, such as deep learning-based approaches, the availability of high-quality data is of great interest. Volumetric data is very important in medicine, as it ranges from disease diagnoses to therapy monitoring. When the dataset is sufficient, models can be trained to help doctors with these tasks. Unfortunately, there are scenarios where large amounts of data is unavailable. For example, rare diseases and privacy issues can lead to restricted data availability. In non-medical fields, the high cost of obtaining enough high-quality data can also be a concern. A solution to these problems can be the generation of realistic synthetic data using Generative Adversarial Networks (GANs). The existence of these mechanisms is a good asset, especially in healthcare, as the data must be of good quality, realistic, and without privacy issues. Therefore, most of the publications on volumetric GANs are within the medical domain. In this review, we provide a summary of works that generate realistic volumetric synthetic data using GANs. We therefore outline GAN-based methods in these areas with common architectures, loss functions and evaluation metrics, including their advantages and disadvantages. We present a novel taxonomy, evaluations, challenges, and research opportunities to provide a holistic overview of the current state of volumetric GANs.
PMID:38340545 | DOI:10.1016/j.media.2024.103100
Rare Disease Day: Amplifying voices, advocating hope
Med. 2024 Feb 9;5(2):103-105. doi: 10.1016/j.medj.2024.01.003.
ABSTRACT
Every year on February 28, the global community comes together to observe Rare Disease Day, a day dedicated to raising awareness and understanding for the millions of individuals who live with rare disorders. While individual rare diseases may seem uncommon, their collective impact is significant, affecting the lives of countless families and communities worldwide. This day serves as a crucial platform to amplify the voices of those affected, advocate for increased research and support, and inspire hope for a future where rare diseases can be prevented, diagnosed earlier, and effectively treated.
PMID:38340703 | DOI:10.1016/j.medj.2024.01.003
Diffuse Cutaneous Mastocytosis: A Current Understanding of a Rare Disease
Int J Mol Sci. 2024 Jan 23;25(3):1401. doi: 10.3390/ijms25031401.
ABSTRACT
Mastocytosis is a heterogeneous disease characterized by the expansion and accumulation of neoplastic mast cells in various tissues. Diffuse cutaneous mastocytosis (DCM) is a rare and most severe form of cutaneous mastocytosis, which typically occurs in childhood. There have been reports of a familial DCM with specific gene mutations, indicating both sporadic and hereditary factors involved in its pathogenesis. DCM is associated with severe MC mediator-related symptoms and an increased risk of anaphylaxis. The diagnosis is based on the appearance of skin lesions, which typically show generalized thickening, erythroderma, blistering dermographism, and a positive Darier's sign. Recognition, particularly in infants, is challenging due to DCMs resemblance to other bullous skin disorders. Therefore, in unclear cases, a skin biopsy is crucial. Treatment focuses on symptom management, mainly including antihistamines and mast cell stabilizers. In extremely severe cases, systemic steroids, tyrosine kinase inhibitors, phototherapy, or omalizumab may be considered. Patients should be equipped with an adrenaline autoinjector. Herein, we conducted a comprehensive review of literature data on DCM since 1962, which could help to better understand both the management and prognosis of DCM, which depends on the severity of skin lesions, intensity of mediator-related symptoms, presence of anaphylaxis, and treatment response.
PMID:38338679 | DOI:10.3390/ijms25031401
Advancing diagnosis and research for rare genetic diseases in Indigenous peoples
Nat Genet. 2024 Feb;56(2):189-193. doi: 10.1038/s41588-023-01642-1.
NO ABSTRACT
PMID:38332370 | DOI:10.1038/s41588-023-01642-1