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Abstract
Skeletal muscle channelopathies are rare heterogeneous diseases with marked genotypic and phenotypic variability. These disorders cause lifetime disability and impact quality of life. Despite advances in understanding of the molecular pathology of these disorders, the diverse phenotypic manifestations remain a challenge in diagnosis, therapeutic, genetic counseling, and research planning. Electrodiagnostic testing is useful in directing the diagnosis, but has several limitations: patient discomfort, time consuming, and significant overlap of findings in muscle channelopathies. Although genetic testing is the gold standard in making a definitive diagnosis, a mutation might not be identified in many patients with a well-supported clinical diagnosis of periodic paralysis. In the recent past, there have been landmark clinical trials in non-dystrophic myotonia and periodic paralysis which are encouraging as they demonstrate the ability of robust clinical research consortia to conduct well-controlled trials of rare diseases.
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Østergaard ST, Johnson K, Stojkovic T, Krag T, De Ridder W, De Jonghe P, Baets J, Claeys KG, Fernández-Torrón R, Phillips L, Topf A, Colomer J, Nafissi S, Jamal-Omidi S, Bouchet-Seraphin C, Leturcq F, MacArthur DG, Lek M, Xu L, Nelson I, Straub V, Vissing J. Limb girdle muscular dystrophy due to mutations in POMT2. J Neurol Neurosurg Psychiatry 2018; 89:506-512. [PMID: 29175898 DOI: 10.1136/jnnp-2017-317018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 10/13/2017] [Accepted: 10/26/2017] [Indexed: 01/06/2023]
Abstract
BACKGROUND Mutations in the gene coding for protein O-mannosyl-transferase 2 (POMT2) are known to cause severe congenital muscular dystrophy, and recently, mutations in POMT2 have also been linked to a milder limb-girdle muscular dystrophy (LGMD) phenotype, named LGMD type 2N (LGMD2N). Only four cases have been reported so far.ClinicalTrials.gov ID: NCT02759302 METHODS: We report 12 new cases of LGMD2N, aged 18-63 years. Muscle involvement was assessed by MRI, muscle strength testing and muscle biopsy analysis. Other clinical features were also recorded. RESULTS Presenting symptoms were difficulties in walking, pain during exercise, delayed motor milestones and learning disabilities at school. All had some degree of cognitive impairment. Brain MRIs were abnormal in 3 of 10 patients, showing ventricular enlargement in one, periventricular hyperintensities in another and frontal atrophy of the left hemisphere in a third patient. Most affected muscle groups were hip and knee flexors and extensors on strength testing. On MRI, most affected muscles were hamstrings followed by paraspinal and gluteal muscles. The 12 patients in our cohort carried 11 alleles with known mutations, whereas 11 novel mutations accounted for the remaining 13 alleles. CONCLUSION We describe the first cohort of patients with LGMD2N and show that unlike other LGMD types, all patients had cognitive impairment. Primary muscle involvement was found in hamstring, paraspinal and gluteal muscles on MRI, which correlated well with reduced muscle strength in hip and knee flexors and extensors. The study expands the mutational spectrum for LGMD2N, with the description of 11 novel POMT2 mutations in the association with LGMD2N. CLINICAL TRIAL REGISTRATION NCT02759302.
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Johnson K, Bertoli M, Phillips L, Blain A, Ensini M, Töpf A, Lek M, Xu L, Mullen T, Valkanas E, MacArthur D, Straub V. An international collaboration applying targeted whole exome sequencing to detect causative variants in 1001 patients affected by limb-girdle weakness of unknown origin. Neuromuscul Disord 2018. [DOI: 10.1016/s0960-8966(18)30407-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Catapano F, Domingos J, Perry M, Ricotti V, Phillips L, Servais L, de Groot I, Niks E, Verschuuren J, Straub V, Voit T, Morgan J, Muntoni F. Downregulation of miR-29 and miR-23 in urine of Duchenne muscular dystrophy patients. Neuromuscul Disord 2018. [DOI: 10.1016/s0960-8966(18)30344-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Catapano F, Domingos J, Perry M, Ricotti V, Phillips L, Servais L, Seferian A, Groot ID, Krom YD, Niks EH, Verschuuren JJ, Straub V, Voit T, Morgan J, Muntoni F. Downregulation of miRNA-29, -23 and -21 in urine of Duchenne muscular dystrophy patients. Epigenomics 2018; 10:875-889. [PMID: 29564913 DOI: 10.2217/epi-2018-0022] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM To study the signature of 87 urinary miRNAs in Duchenne muscular dystrophy (DMD) patients, select the most dysregulated and determine statistically significant differences in their expression between controls, ambulant (A) and nonambulant (NA) DMD patients, and patients on different corticosteroid regimens. Patients/materials & methods: Urine was collected from control (n = 20), A (n = 31) and NA (n = 23) DMD patients. miRNA expression was measured by reverse transcription-quantitative PCR. RESULTS miR-29c-3p was significantly downregulated in A DMD patients while miR-23b-3p and miR-21-5p were significantly downregulated in NA DMD patients compared with age-matched controls. CONCLUSION miR-29c-3p, miR-23b-3p and miR-21-5p are promising novel noninvasive biomarkers for DMD, and miR-29c-3p levels are differentially affected by different steroid regimens, supporting the antifibrotic effect of steroid therapy.
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Lodhi H, Poghni PO, Schesing K, Phelps K, Ngo C, Arbique D, Evans H, Aigbe A, Price A, Vernino S, Phillips L, Khemani P, Yano Y, Das S, Wang T, Vongpatanasin W. USEFULNESS OF BLOOD PRESSURE VARIABILITY MARKERS DERIVED FROM AMBULATORY BLOOD PRESSURE MONITORING IN DETECTING AUTONOMIC FAILURE. J Am Coll Cardiol 2018. [DOI: 10.1016/s0735-1097(18)32357-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Phillips L, Opie J. The utility of bone marrow sampling in the diagnosis and staging of lymphoma in South Africa. Int J Lab Hematol 2018; 40:276-283. [PMID: 29427399 DOI: 10.1111/ijlh.12782] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 12/19/2017] [Indexed: 02/01/2023]
Abstract
INTRODUCTION The bone marrow biopsy (BMB) is a diagnostic and staging tool in lymphoma that remains practically useful and relevant in resource-constrained settings, despite restricted applications in international staging guidelines, which favour less invasive nuclear medicine techniques. METHODS Retrospective laboratory data review of BMBs in adult lymphoma patients from 2005 to 2010 to determine subtypes, rates of bone marrow involvement (BMI), human immunodeficiency virus (HIV) seroprevalence and CD4 counts, trephine length and additional findings. RESULTS A total of 1215 BMBs reported in lymphoma included 759 newly diagnosed patients, with BMI in 43.6% of non-Hodgkin lymphoma (NHL) overall, 28.9% of high-grade B subtypes and 35.7% of Hodgkin lymphoma (HL). HIV seroprevalence was 38.8%, 53.0% and 33.9% in the 3 respective groups. There was a statistical association between BMI and HIV seropositivity in Burkitt lymphoma and HL, and BMI and CD4 count in HIV-related HL. Over 10% (n = 79) of new lymphoma cases were diagnosed by BMB with ancillary tests. Occasional histological discordance and transformation were reported in NHL. Focal/unilateral BMI was uncommon. Bilateral BMB and biopsy length exceeding 26 mm did not improve BMI detection. CONCLUSION In the South African public sector, high HIV prevalence leads to a different lymphoma pathology profile from the developed world. High BMI rates are encountered. Here, and in similar resource-constrained settings, international lymphoma staging guidelines can be logistically challenging and unaffordable. BMB remains useful in the staging and diagnosis of lymphoma. Unilateral sampling with a processed trephine length of at least 26 mm is recommended.
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Danova A, Newman H, Barnes HJ, Phillips L, Mathews KG. Ratite cancellous xenograft: effects on avian fracture healing. Vet Comp Orthop Traumatol 2018. [DOI: 10.1055/s-0038-1632746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryA segmental radial defect model was used to radiographically and histologically evaluate response to ratite cancellous xenograft in pigeons. The control group showed little evidence of callus production with all fractures proceeding to nonunion. Lymphocytic response to xenograft peaked at four weeks and diminished thereafter. Fractures treated with cancellous xenograft had significant increases in new bone production.
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Van den Bergh PYK, Sznajer Y, Van Parys V, van Tol W, Wevers RA, Lefeber DJ, Xu L, Lek M, MacArthur DG, Johnson K, Phillips L, Töpf A, Straub V. Corrigendum to "A homozygous DPM3 mutation in a patient with alpha-dystroglycan-related limb girdle muscular dystrophy" [Neuromuscular disorders 27/11 (2017) 1043-1046]. Neuromuscul Disord 2017; 28:101. [PMID: 29246662 DOI: 10.1016/j.nmd.2017.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Johnson K, Töpf A, Bertoli M, Phillips L, Claeys KG, Stojanovic VR, Perić S, Hahn A, Maddison P, Akay E, Bastian AE, Łusakowska A, Kostera-Pruszczyk A, Lek M, Xu L, MacArthur DG, Straub V. Identification of GAA variants through whole exome sequencing targeted to a cohort of 606 patients with unexplained limb-girdle muscle weakness. Orphanet J Rare Dis 2017; 12:173. [PMID: 29149851 PMCID: PMC5693551 DOI: 10.1186/s13023-017-0722-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 11/06/2017] [Indexed: 12/30/2022] Open
Abstract
Background Late-onset Pompe disease is a rare genetic neuromuscular disorder caused by a primary deficiency of α-glucosidase and the associated accumulation of glycogen in lysosomal vacuoles. The deficiency of α-glucosidase can often be detected using an inexpensive and readily accessible dried blood spot test when Pompe disease is suspected. Like several neuromuscular disorders, Pompe disease typically presents with progressive weakness of limb-girdle muscles and respiratory insufficiency. Due to the phenotypic heterogeneity of these disorders, however, it is often difficult for clinicians to reach a diagnosis for patients with Pompe disease. Six hundred and six patients from a European population were recruited onto our study. Inclusion criteria stipulated that index cases must present with limb-girdle weakness or elevated serum creatine kinase activity. Whole exome sequencing with at least 250 ng DNA was completed using an Illumina exome capture and a 38 Mb baited target. A panel of 169 candidate genes for limb-girdle weakness was analysed for disease-causing variants. Results A total of 35 variants within GAA were detected. Ten distinct variants in eight unrelated index cases (and four siblings not sequenced in our study) were considered disease-causing, with the patients presenting with heterogeneous phenotypes. The eight unrelated individuals were compound heterozygotes for two variants. Six patients carried the intronic splice site c.-13 T > G transversion and two of the six patients also carried the exonic p.Glu176ArgfsTer45 frameshift. Four of the ten variants were novel in their association with Pompe disease. Conclusions Here, we highlight the advantage of using whole exome sequencing as a tool for detecting, diagnosing and treating patients with rare, clinically variable genetic disorders.
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Preisler N, Cohen J, Vissing CR, Madsen KL, Heinicke K, Sharp LJ, Phillips L, Romain N, Park SY, Newby M, Wyrick P, Mancias P, Galbo H, Vissing J, Haller RG. Impaired glycogen breakdown and synthesis in phosphoglucomutase 1 deficiency. Mol Genet Metab 2017; 122:117-121. [PMID: 28882528 DOI: 10.1016/j.ymgme.2017.08.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 08/15/2017] [Accepted: 08/20/2017] [Indexed: 01/06/2023]
Abstract
OBJECTIVE We investigated metabolism and physiological responses to exercise in an 18-year-old woman with multiple congenital abnormalities and exertional muscle fatigue, tightness, and rhabdomyolysis. METHODS We studied biochemistry in muscle and fibroblasts, performed mutation analysis, assessed physiological responses to forearm and cycle-ergometer exercise combined with stable-isotope techniques and indirect calorimetry, and evaluated the effect of IV glucose infusion and oral sucrose ingestion on the exercise response. RESULTS Phosphoglucomutase type 1 (PGM1) activity in muscle and fibroblasts was severely deficient and PGM1 in muscle was undetectable by Western blot. The patient was compound heterozygous for missense (R422W) and nonsense (Q530X) mutations in PGM1. Forearm exercise elicited no increase in lactate, but an exaggerated increase in ammonia, and provoked a forearm contracture. Comparable to patients with McArdle disease, the patient developed a 'second wind' with a spontaneous fall in exercise heart rate and perceived exertion. Like in McArdle disease, this was attributable to an increase in muscle oxidative capacity. Carbohydrate oxidation was blocked during exercise, and the patient had exaggerated oxidation of fat to fuel exercise. Exercise heart rate and perceived exertion were lower after IV glucose and oral sucrose. Muscle glycogen level was low normal. CONCLUSIONS The second wind phenomenon has been considered to be pathognomonic for McArdle disease, but we demonstrate that it can also be present in PGM1 deficiency. We show that severe loss of PGM1 activity causes blocked muscle glycogenolysis that mimics McArdle disease, but may also limit glycogen synthesis, which broadens the phenotypic spectrum of this disorder.
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Reza M, Cox D, Phillips L, Johnson D, Manoharan V, Grieves M, Davis B, Roos A, Morgan J, Hanna MG, Muntoni F, Lochmüller H. MRC Centre Neuromuscular Biobank (Newcastle and London): Supporting and facilitating rare and neuromuscular disease research worldwide. Neuromuscul Disord 2017; 27:1054-1064. [PMID: 28864117 PMCID: PMC5678293 DOI: 10.1016/j.nmd.2017.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 06/30/2017] [Accepted: 07/03/2017] [Indexed: 11/22/2022]
Abstract
Neuromuscular diseases are both genetic and acquired conditions resulting in progressive muscle weakness and wasting which lead to disability and reduced survival. The availability of high-quality human biomaterial is crucial to support biomedical research with potential applications at all stages of development, from molecular pathophysiology to drug discovery, clinical trials and evaluation of biomarkers. Although significant progress has been made over the last few years in the diagnosis of these rare conditions, the genetic defect and underlying pathological abnormality remain unknown in approximately 1/3 of cases. Moreover, to date no definitive cure is available for most neuromuscular disorders, nor are there sufficiently reliable and specific biomarkers to monitor disease progression and response to treatment. This is in part due to the rarity and genetic heterogeneity of neuromuscular diseases and the lack of access to patient samples. The availability of the national MRC Centre Biobank for Neuromuscular Diseases in Newcastle and London has addressed this bottleneck and supported neuromuscular research. Nine years after the establishment of the MRC Centre Biobank, many high profile research publications have highlighted the positive impact of neuromuscular biobanking for translational research and proven this facility to be a unique repository source for diagnostics, basic science research, industry, drug development, and therapy.
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Durmus H, Scalco R, Gardiner A, Manole A, Schapira A, Morrow J, Houlden H, Holton J, Johnson K, Töpf A, Phillips L, Deymeer F, Parman Y, Straub V, Quinlivan R, Oflazer-Serdaoglu P. Anoctamin 5 muscular dystrophy mimicking metabolic myopathy. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Medin P, Hrycushko B, Phillips L, Vernino S, Foster R, Sayre J, Yamada Y, Van Der Kogel A. Spinal Nerve Tolerance to Single-Session Stereotactic Ablative Radiotherapy (SAbR). Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Johnson K, Töpf A, Bertoli M, Phillips L, De Ridder W, Baets J, De Jonghe P, Deconinck T, Rakocevic Stojanovic V, Perić S, Durmus H, Jamal-Omidi S, Nafissi S, Łusakowska A, Mongini T, Lek M, Valkanas E, Mullen T, Xu L, MacArthur D, Straub V. Detection of TRIM32 variants associated with LGMD2H in a large cohort of patients with unexplained limb-girdle weakness. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Phillips L, Hesketh K, Schaeffer EK, Andrade J, Farr J, Mulpuri K. Avascular necrosis in children with cerebral palsy after reconstructive hip surgery. J Child Orthop 2017; 11:326-333. [PMID: 29081846 PMCID: PMC5643925 DOI: 10.1302/1863-2548.11.170078] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
PURPOSE Progressive hip displacement is one of the most common orthopaedic pathologies in children with cerebral palsy (CP). Reconstructive hip surgery has become the standard treatment of care. Reported avascular necrosis (AVN) rates for hip reconstructive surgery in these patients vary widely in the literature. The purpose of this study is to identify the frequency and associated risk factors of AVN for reconstructive hip procedures. METHODS A retrospective analysis was performed of 70 cases of reconstructive hip surgery in 47 children with CP, between 2009 and 2013. All 70 cases involved varus derotation osteotomy (VDRO), with 60% having combined VDRO and pelvic osteotomies (PO), and 21% requiring open reductions. Mean age at time of surgery was 8.82 years and 90% of patients were Gross Motor Function Classification System (GMFCS) 4 and 5. Radiographic dysplasia parameters were analysed at selected intervals, to a minimum of one year post-operatively. Severity of AVN was classified by Kruczynski's method. Bivar- iate statistical analysis was conducted using Chi-square test and Student's t-test. RESULTS There were 19 (27%) noted cases of AVN, all radio- graphically identifiable within the first post-operative year. The majority of AVN cases (63%) were mild to moderate in severity. Pre-operative migration percentage (MP) (p = 0.0009) and post-operative change in MP (p = 0.002) were the most significant predictors of AVN. Other risk factors were: GMFCS level (p = 0.031), post-operative change in NSA (p = 0.02) and concomitant adductor tenotomy (0.028). CONCLUSION AVN was observed in 27% of patients. Severity of displacement correlates directly with AVN risk and we suggest that hip reconstruction, specifically VDRO, be performed early in the 'hip at risk' group to avoid this complication.
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Van den Bergh PYK, Sznajer Y, Van Parys V, van Tol W, Wevers RA, Lefeber DJ, Xu L, Lek M, MacArthur DG, Johnson K, Phillips L, Töpf A, Straub V. A homozygous DPM3 mutation in a patient with alpha-dystroglycan-related limb girdle muscular dystrophy. Neuromuscul Disord 2017; 27:1043-1046. [PMID: 28803818 DOI: 10.1016/j.nmd.2017.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/27/2017] [Accepted: 07/12/2017] [Indexed: 10/19/2022]
Abstract
Defects of O-linked glycosylation of alpha-dystroglycan cause a wide spectrum of muscular dystrophies ranging from severe congenital muscular dystrophy associated with abnormal brain and eye development to mild limb girdle muscular dystrophy. We report a female patient who developed isolated pelvic girdle muscle weakness and wasting, which became symptomatic at age 42. Exome sequencing uncovered a homozygous c.131T > G (p.Leu44Pro) substitution in DPM3, encoding dolichol-P-mannose (DPM) synthase subunit 3, leading to a 50% reduction of enzymatic activity. Decreased availability of DPM as an essential donor substrate for protein O-mannosyltransferase (POMT) 1 and 2 explains defective skeletal muscle alpha-dystroglycan O-glycosylation. Our findings show that DPM3 mutations may lead to an isolated and mild limb girdle muscular dystrophy phenotype without cardiomyopathy.
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Guo G, Phillips L. DEVELOPING SENSITIVITY ABOUT TRANSITIONAL CARE AND COGNITIVE IMPAIRMENT. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Phillips L, Cadogan M. CREATING PERFECT EMERGENCY DEPARTMENT (ED) TO HOME TRANSITIONS FOR FRAIL ELDERS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Woods D, Phillips L, Brecht M. CHANGES IN OXYTOCIN AND MUTUALITY IN DIRECT CARE STAFF USING A CALMING INTERVENTION. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Mach J, Huizer-Pajkos A, Mitchell S, Phillips L, Kane A, de Cabo R, Le Couteur D, Hilmer S. AGEING AND DRUG-INDUCED LIVER INJURY: INSIGHTS FROM ANIMAL STUDIES. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Johnson K, Bertoli M, Phillips L, Blain A, Ensini M, Bushby K, Lochmüller H, Töpf A, Lek M, Xu L, Mullen T, Valkanas E, MacArthur D, Straub V. The MYO-SEQ project: application of exome sequencing technologies to 1000 patients affected by limb-girdle weakness of unknown origin. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30337-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Johnson K, Töpf A, Bertoli M, Phillips L, De Ridder W, De Jonghe P, Baets J, Deconinck T, Stojanovic V, Peric S, Durmus H, Omidi S, Nafissi S, Lusakowska A, Mongini T, Lek M, MacArthur D, Straub V. Detection of TRIM32 variants associated with LGMD2H in a large cohort of patients with unexplained limb-girdle weakness. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30338-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Johnson K, Bertoli M, Phillips L, Töpf A, Lek M, Xu L, MacArthur D, Straub V. The MYO-SEQ project: Application of exome sequencing technologies to 1000 patients affected by limb-girdle weakness of unknown origin. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Van den Bergh P, Sznajer Y, Van Parijs V, van Tol W, Wevers R, Lefeber D, Xu L, Lek M, MacArthur D, Xu L, Lek M, MacArthur D, Johnson K, Phillips L, Topf A, Straub V. A homozygous DPM3 mutation in a patient with alpha-dystroglycan-related limb girdle muscular dystrophy. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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