Elizabeth M Angus’s research while affiliated with University Hospital Southampton NHS Foundation Trust and other places

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Publications (10)


Mitotic chromosomes of A. felix Angus et al., 2024, arranged as karyotypes a, b Campo Felice, ♂♂, a Giemsa stained b C-banded c Campo Felice, ♀, Giemsa stained d–g ♀♀, Calabria, Giemsa stained d, e ♀ 2 f, g ♀4. Missing chromosomes in g are indicated by heavy dots. Scale bar: 5 μm.
Members of the Balfour-Browne Club working the bottom of a dried-out pool near Villagio Mancusa. Photo courtesy of Zuqi Mai.
Aedeagi a–cA. bellumgerens, aedeagal fragments from a specimen labelled “Calabria, Paganetti” (MHNG) a aedeagal struts b phallobase c retracted endophallus dA. bellumgerens, paratype, IT, Sicily, Nebrodi eA felix, Calabria, Villagio Mancusa. Scale bar: 1 mm.
Heads and pronota aA. bellumgerens, holotype, Sicily bA. bellumgerens ♂, Calabria (MNHG)) cA. bellumgerens ♀, Calabria (MNHG) dA. felix, paratype, IT, Campo Felice eA. felix ♀ 2, Calabria fA. krelli, holotype, IT, Sardinia. Scale bar: 1 mm.
a–l epipharynxes a, bA. kraatzi, SV c, dA. isikdagensis paratypes, TR, Çamildere e, fA. felix sp. nov. paratypes g, hA. bameuli sp. nov. paratypes iA. alberti? AR jA. krelli sp. nov., paratype k, lA. alberti sp. nov., paratypes. Scale bar: 0.5 mm.

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Addenda and corrigenda: Angus RB, Maté JF, Angus EM, Král D (2024) Towards a revision of the Palaearctic species of Aphodius Hellwig, 1798, subgenus Liothorax Motschulsky, 1860 (Coleoptera, Scarabaeidae, Aphodiinae). ZooKeys 1207: 205–299. https://doi.org/10.3897/zookeys.1207.117225
  • Article
  • Full-text available

February 2025

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116 Reads

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Jason F. Maté

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Elizabeth M. Angus

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Corrigenda to the abovementioned paper are given, as well as new data on Aphodius (Liothorax) felix Angus et al., 2024 and A. (L.) bellumgerens Angus et al., 2024

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ZK-1207-205 article-117225 en 1 Towards a revision of the Palaearctic species of Aphodius Hellwig, 1758, subgenus Liothorax Motschulsky, 1860

July 2024

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74 Reads

The Palaearctic species of Aphodius Hellwig, 1798, subgenus Liothorax Motschulsky, 1860 are revised using a combination of chromosome analysis, molecular phyloge-netics and morphological statistical analysis. Sixteen species are recognised, one of which is shown to comprise two subspecies. Based mainly on the morphology of the aedeagal endophallus and the phylogenetic analysis, they are placed in two groups: the. niger group, apparently monophyletic, comprising Aphodius (Liothorax) niger Illig-er, 1798, A. (L.) muscorum (Ádám, 1994), stat. rest., A. (L.) felix sp. nov., A. (L.) bel-lumgerens sp. nov., A. (L.) bameuli sp. nov., A. (L.) krelli sp. nov., A. (L.) isikdagensis (Balthasar, 1953), A. (L.) alberti sp. nov. and A. (L.) wilsonae Maté et Angus, 2005, stat. rest.; and the plagiatus group, almost certainly paraphyletic, comprising A. (L.) plagiatus (Linnaeus, 1767), including A. (L.) p. plagiatus and A. (L.) p. sinoplagiatus subsp. nov., A. (L.) rodrigoi sp. nov., A. (L.) discoides A. Schmidt, 1916, stat. rest., A. (L.) rutilipennis (Baudi di Selve, 1870), stat. rest., A. (L.) chellala sp. nov., A. (L.) kraatzi Harold, 1868, and A. (L.) rusakovi Gusakov, 2004. A key to the species is given as well as details of their morphology, distributions, and habitats.


Corrected Liothorax paper ZK-1207-205 article-117225 en 1 with corrections

July 2024

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66 Reads

The Palaearctic species of Aphodius Hellwig, 1798, subgenus Liothorax Motschulsky, 1860 are revised using a combination of chromosome analysis, molecular phyloge-netics and morphological statistical analysis. Sixteen species are recognised, one of which is shown to comprise two subspecies. Based mainly on the morphology of the aedeagal endophallus and the phylogenetic analysis, they are placed in two groups: the. niger group, apparently monophyletic, comprising Aphodius (Liothorax) niger Illig-er, 1798, A. (L.) muscorum (Ádám, 1994), stat. rest., A. (L.) felix sp. nov., A. (L.) bel-lumgerens sp. nov., A. (L.) bameuli sp. nov., A. (L.) krelli sp. nov., A. (L.) isikdagensis (Balthasar, 1953), A. (L.) alberti sp. nov. and A. (L.) wilsonae Maté et Angus, 2005, stat. rest.; and the plagiatus group, almost certainly paraphyletic, comprising A. (L.) plagiatus (Linnaeus, 1767), including A. (L.) p. plagiatus and A. (L.) p. sinoplagiatus subsp. nov., A. (L.) rodrigoi sp. nov., A. (L.) discoides A. Schmidt, 1916, stat. rest., A. (L.) rutilipennis (Baudi di Selve, 1870), stat. rest., A. (L.) chellala sp. nov., A. (L.) kraatzi Harold, 1868, and A. (L.) rusakovi Gusakov, 2004. A key to the species is given as well as details of their morphology, distributions, and habitats.


Towards a revision of the Palaearctic species of Aphodius Hellwig, 1798, subgenus Liothorax Motschulsky, 1860 (Coleoptera, Scarabaeidae, Aphodiinae)

July 2024

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322 Reads

The Palaearctic species of Aphodius Hellwig, 1798, subgenus Liothorax Motschulsky, 1860 are revised using a combination of chromosome analysis, molecular phylogenetics and morphological statistical analysis. Sixteen species are recognised, one of which is shown to comprise two subspecies. Based mainly on the morphology of the aedeagal endophallus and the phylogenetic analysis, they are placed in two groups: the. niger group, apparently monophyletic, comprising Aphodius (Liothorax) niger Illiger, 1798, A. (L.) muscorum (Ádám, 1994), stat. rest., A. (L.) felixsp. nov., A. (L.) bellumgerenssp. nov., A. (L.) bameulisp. nov., A. (L.) krellisp. nov., A. (L.) isikdagensis (Balthasar, 1953), A. (L.) albertisp. nov. and A. (L.) wilsonae Maté et Angus, 2005, stat. rest.; and the plagiatus group, almost certainly paraphyletic, comprising A. (L.) plagiatus (Linnaeus, 1767), including A. (L.) p. plagiatus and A. (L.) p. sinoplagiatussubsp. nov., A. (L.) rodrigoisp. nov., A. (L.) discoidesA. Schmidt, 1916, stat. rest., A. (L.) rutilipennis (Baudi di Selve, 1870), stat. rest., A. (L.) chellalasp. nov., A. (L.) kraatzi Harold, 1868, and A. (L.) rusakovi Gusakov, 2004. A key to the species is given as well as details of their morphology, distributions, and habitats.




Further karyosystematic studies of the Boreonectes griseostriatus (De Geer) group of sibling species (Coleoptera, Dytiscidae)–characterisation of B. emmerichi (Falkenström, 1936) and additional European data

March 2015

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396 Reads

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6 Citations

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Elizabeth M. Angus

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[...]

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Ying Zhang

A lectotype is designated for the Tibetan species Deronectesemmerichi Falkenström, 1936 (Currently Boreonectesemmerichi (Falkenström)), and its habitus, as well as the median lobe and parameres of its aedeagus, are figured along with additional comparative material. Material of Boreonectesemmerichi from Sikkim (BMNH) represents the first record of a Boreonectes Angus, 2010 species from India. The karyotype of Boreonectesemmerichi is described as having 26 pairs of autosomes plus sex chromosomes which are X0 (♂), XX (♀). The karyotype is most like that of Boreonectesmacedonicus (Géuorguiev, 1959), but with slight differences. Additional chromosomal information is given for Boreonectesgriseostriatusgriseostriatus (De Geer, 1774) in the French Alps, Boreonectesgriseostriatusstrandi (Brinck, 1943) on the Kola Peninsula, Boreonectesmultilineatus (Falkenström, 1922) in the Pyrenees and Boreonectesibericus (Dutton & Angus, 2007) in the Spanish Picos de Europa.


Exome analysis resolves differential diagnosis of familial kidney disease and uncovers a potential confounding variant

January 2014

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135 Reads

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16 Citations

Summary A girl aged 6 presented with haematuria and her sister (aged 5) presented with haematuria and proteinuria. Family history showed multiple individuals suffering from end stage renal failure from the paternal side of the pedigree. Following kidney biopsy in the father and paternal grandmother, the pathological diagnosis was of focal segmental glomerulosclerosis (FSGS). Exome sequencing was undertaken in the proband's sister and grandmother. Genetic variants shared by both affected individuals were interrogated to identify the genetic cause of disease. Candidate variants were then sequenced in all the family members to determine segregation with the disease. A mutation of COL4A5 known to cause Alport syndrome segregated with disease from the paternal side of the pedigree and a variant in NPHS1 was present in both paediatric cases and inherited from their mother. This study highlights the advantages of exome sequencing over single gene testing; disease presentation can be heterogeneous with several genes representing plausible candidates; candidate gene(s) may be unavailable as a diagnostic test; consecutive, single gene testing typically concludes once a single causal mutation is identified. In this family, we were able to confirm a diagnosis of Alport syndrome, which will facilitate testing in other family members.


Graph summarizing key laboratory results. Thin arrows indicate doses of cisplatin; bold arrows indicate doses of eculizumab.
Light and electron microscopic findings in HUS (A). Light microscopy showing sclerosed glomeruli (to the left of the figure) and a glomerulus showing increased mesangial matrix expansion and segmental sclerosis (boxed area). There is also focal tubular atrophy around damaged glomeruli (Jones Silver histochemical stain, scale bar = 10 µm). (B) High power light microscopy showing glomerulus with mesangial matrix expansion and segmental sclerosis (asterisks) (Jones Silver histochemical stain, scale bar = 5 µm. (C) Toludine blue semithin preparation showing increased mesangial matrix expansion and segmental sclerosis (asterisks) and thickened capillary loop (arrow) mimicking membranoproliferative glomerulonephritis, scale bar = 5 µm. (D) EM showing fluffy-like material within a markedly widened sub-endothelial space consistent with HUS scale bar = 2 µm.
Cisplatin-induced haemolytic uraemic syndrome associated with a novel intronic mutation of CD46 treated with eculizumab

August 2013

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333 Reads

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32 Citations

CKJ: Clinical Kidney Journal

A 2-year-old patient with a neuroblastoma developed haemolytic uraemic syndrome (HUS) following treatment with cisplatin and carboplatin. Following treatment with eculizumab, there was a substantial improvement in renal function with the recovery of the platelet count and the cessation of haemolysis. Subsequent investigations showed a novel, heterozygous CD46 splice site mutation with reduced peripheral blood neutrophil CD46 expression. Withdrawal of eculizumab was followed by the recurrence of disease activity, which resolved with re-introduction of therapy. Abnormal regulation of complement may be associated with other cases of cisplatin-induced HUS and treatment with eculizumab may be appropriate for other affected individuals.


Eculizumab therapy for atypical haemolytic uraemic syndrome due to a gain-of-function mutation of complement factor B

April 2013

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13 Reads

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25 Citations

Pediatric Nephrology

Background: Atypical haemolytic uraemic syndrome (aHUS) is caused by dysregulated complement activation. A humanised anti-C5 monoclonal antibody has recently become available for treatment of this condition Case-diagnosis/treatment: We present the first description of an infant with an activating mutation of complement factor B successfully treated with eculizumab. On standard doses she had evidence of ongoing C5 cleavage despite a good clinical response. Conclusions: Eculizumab is effective therapy for aHUS associated with factor B mutations, but recommended doses may not be adequate for all patients.

Citations (4)


... The two studied southeast European species (B. macedonicus (Georgiev, 1959) and B. riberae (Dutton et Angus, 2007)) are slightly more distant genetically and the Tibetan B. emmerichi (Falkenström, 1936) much more so, in fact closer to American "griseostriatus", although its karyotype is very similar to that of B. macedonicus (Angus et al. 2015). This suggests that in western Europe chromosome diversification has been a driver of speciation. ...

Reference:

A re-examination of the West European species of Boreonectes Angus, 2010, with particular reference to B. multilineatus (Falkenström, 1922) (Coleoptera, Dytiscidae)
Further karyosystematic studies of the Boreonectes griseostriatus (De Geer) group of sibling species (Coleoptera, Dytiscidae)–characterisation of B. emmerichi (Falkenström, 1936) and additional European data

... These findings confirm the increasing evidence supporting the identification of COL4A mutations in familial and sporadic forms of FSGS. [6][7][8] In a recently published study, COL4A genes were among the top genes with pathogenic mutations identified using ES in a cohort of 3,300 patients with chronic kidney disease, yet only 40% of such cases carried a diagnosis of AS or thin basement membrane nephropathy, and 16% presented with FSGS. 3 Explanations reside in the challenges associated with histopathologic diagnosis of AS and FSGS due to extensive heterogeneity in pathologic presentations and in some subjectivity in the interpretation of the kidney biopsy, which remains the primary method for diagnosing glomerular diseases. 9 Despite comprehensive clinical and pathologic evaluation, misclassification of AS is common, with mesangial proliferative glomerulonephritis (eg, IgA nephropathy) and FSGS accounting for the most common misdiagnoses (in up to 27% and 19% of patients with AS, respectively) in one study of 52 biopsies from patients with AS. 9 Interestingly, in a case of tubulopathy clinically diagnosed as distal renal tubular acidosis with hypercalciuria and nephrocalcinosis, the authors identified a compound heterozygous pathogenic genotype in PCSK1, a gene usually associated with a recessive syndrome characterized by obesity, diabetes, and diarrhea. ...

Exome analysis resolves differential diagnosis of familial kidney disease and uncovers a potential confounding variant

... In a 2-year-old patient with neuroblastoma who developed TMA following cisplatin and carboplatin treatment, there was a significant recovery in renal function, platelet count, and cessation of hemolysis after eculizumab treatment. 10 After 5 weeks of treatment, eculizumab was ceased. Thrombotic microangiopathy recurred 2 months later, which resolved upon re-initiation of eculizumab. ...

Cisplatin-induced haemolytic uraemic syndrome associated with a novel intronic mutation of CD46 treated with eculizumab

CKJ: Clinical Kidney Journal

... Eculizumab showed high efficacy and safety and quickly became the gold standard for managing aHUS (30,31). Whereas terminal complement inhibition via eculizumab is effective for treating aHUS resulting from a variety of molecular lesions, including gain-of-function mutation in FB, one clinical study reported ongoing C5 cleavage and terminal pathway activation in a patient with an FB mutation after receiving eculizumab (32). An additional concern with anti-C5 treatment is its lack of complement pathway selectivity, which can reduce overall protection against bacterial infection (28), although this can be managed through preventative vaccination against problematic species such as Neisseria. ...

Eculizumab therapy for atypical haemolytic uraemic syndrome due to a gain-of-function mutation of complement factor B
  • Citing Article
  • April 2013

Pediatric Nephrology