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Blanco N, Lavoie MC, Ngeno C, Wangusi R, Jumbe M, Kimonye F, Ndaga A, Ndichu G, Makokha V, Awuor P, Momanyi E, Oyuga R, Nzyoka S, Mutisya I, Joseph R, Miruka F, Musingila P, Stafford KA, Lascko T, Ngunu C, Owino E, Kiplangat A, Abuya K, Koech E. Effects of Multi-Month Dispensing on Clinical Outcomes: Retrospective Cohort Analysis Conducted in Kenya. AIDS Behav 2024; 28:583-590. [PMID: 38127168 DOI: 10.1007/s10461-023-04247-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2023] [Indexed: 12/23/2023]
Abstract
Multi-month dispensing (MMD) has been widely adopted by national HIV programs as a key strategy for improving the quality of HIV care and treatment services while meeting the unique needs of diverse client populations. We assessed the clinical outcomes of clients receiving MMD in Kenya by conducting a retrospective cohort study using routine programmatic data in 32 government health facilities in Kenya. We included clients who were eligible for multi-month antiretroviral therapy (ART) dispensing for ≥ 3 months (≥ 3MMD) according to national guidelines. The primary exposure was enrollment into ≥ 3MMD. The outcomes were lost to follow-up (LTFU) and viral rebound. Multilevel modified-Poisson regression models with robust standard errors were used to compare clinical outcomes between clients enrolled in ≥ 3MMD and those receiving ART dispensing for less than 3 months (< 3MMD). A total of 3,501 clients eligible for ≥ 3MMD were included in the analysis, of whom 65% were enrolled in ≥ 3MMD at entry into the cohort. There was no difference in LTFU of ≥ 180 days between the two types of care (aRR 1.1, 95% CI 0.7-1.6), while ≥ 3MMD was protective for viral rebound (aRR 0.1 95% CI 0.0-0.2). As more diverse client-focused service delivery models are being implemented, robust evaluations are essential to guide the implementation, monitor progress, and assess acceptability and effectiveness to deliver optimal people-centered care.
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Affiliation(s)
- Natalia Blanco
- Centre for International Health, Education, and Biosecurity (Ciheb), University of Maryland School of Medicine, Baltimore, USA.
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - M C Lavoie
- Centre for International Health, Education, and Biosecurity (Ciheb), University of Maryland School of Medicine, Baltimore, USA
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
- Division of Global Health Sciences, Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
| | - C Ngeno
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - R Wangusi
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - M Jumbe
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - F Kimonye
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - A Ndaga
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - G Ndichu
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - V Makokha
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - P Awuor
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - E Momanyi
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - R Oyuga
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - S Nzyoka
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - I Mutisya
- Division of Global HIV & TB (DGHT), U.S. Centers for Disease Control and Prevention (CDC), Nairobi, Kenya
| | - R Joseph
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
| | - F Miruka
- Division of Global HIV & TB (DGHT), U.S. Centers for Disease Control and Prevention (CDC), Nairobi, Kenya
| | - P Musingila
- Division of Global HIV & TB (DGHT), U.S. Centers for Disease Control and Prevention (CDC), Nairobi, Kenya
| | - K A Stafford
- Centre for International Health, Education, and Biosecurity (Ciheb), University of Maryland School of Medicine, Baltimore, USA
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
- Division of Global Health Sciences, Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
| | - T Lascko
- Centre for International Health, Education, and Biosecurity (Ciheb), University of Maryland School of Medicine, Baltimore, USA
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - C Ngunu
- Nairobi Metropolitan Services Health Management Team, Nairobi, Kenya
| | - E Owino
- Migori County Health Management Team, Western, Kenya
| | - A Kiplangat
- Nairobi Metropolitan Services Health Management Team, Nairobi, Kenya
| | - K Abuya
- Kisii County Health Management Team, Western, Kenya
| | - E Koech
- Center for International Health Education and Biosecurity (Ciheb), MGIC-an affiliate of the University of Maryland Baltimore, Nairobi, Kenya
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Blanco N, Stafford KA, Lavoie MC, Brandenburg A, Górna MW, Merski M. A simple model for the total number of SARS-CoV-2 infections on a national level. Epidemiol Infect 2021; 149:e80. [PMID: 33762052 PMCID: PMC8027562 DOI: 10.1017/s0950268821000649] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 03/16/2021] [Accepted: 03/23/2021] [Indexed: 12/15/2022] Open
Abstract
This study aimed to identify an appropriate simple mathematical model to fit the number of coronavirus disease 2019 (COVID-19) cases at the national level for the early portion of the pandemic, before significant public health interventions could be enacted. The total number of cases for the COVID-19 epidemic over time in 28 countries was analysed and fit to several simple rate models. The resulting model parameters were used to extrapolate projections for more recent data. While the Gompertz growth model (mean R2 = 0.998) best fit the current data, uncertainties in the eventual case limit introduced significant model errors. However, the quadratic rate model (mean R2 = 0.992) fit the current data best for 25 (89%) countries as determined by R2 values of the remaining models. Projection to the future using the simple quadratic model accurately forecast the number of future total number of cases 50% of the time up to 10 days in advance. Extrapolation to the future with the simple exponential model significantly overpredicted the total number of future cases. These results demonstrate that accurate future predictions of the case load in a given country can be made using this very simple model.
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Affiliation(s)
- N. Blanco
- Center for International Health, Education, and Biosecurity, Institute of Human Virology-University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - K. A. Stafford
- Center for International Health, Education, and Biosecurity, Institute of Human Virology-University of Maryland School of Medicine, Baltimore, Maryland, USA
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - M. C. Lavoie
- Center for International Health, Education, and Biosecurity, Institute of Human Virology-University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - A. Brandenburg
- Nordita, KTH Royal Institute of Technology and Stockholm University, SE-10691, Stockholm, Sweden
| | - M. W. Górna
- Structural Biology Group, Biological and Chemical Research Centre, Department of Chemistry, University of Warsaw, Warsaw, Poland
| | - M. Merski
- Structural Biology Group, Biological and Chemical Research Centre, Department of Chemistry, University of Warsaw, Warsaw, Poland
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Pavani G, Zintner SM, Ivanciu L, Small JC, Stafford KA, Szeto JH, Margaritis P. One amino acid in mouse activated factor VII defines its endothelial protein C receptor (EPCR) binding and modulates its EPCR-dependent hemostatic activity in vivo. J Thromb Haemost 2017; 15:507-512. [PMID: 28035745 DOI: 10.1111/jth.13607] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Indexed: 11/26/2022]
Abstract
Essentials The lack of factor (F) VIIa-endothelial protein C receptor (EPCR) binding in mice is unresolved. A single substitution of Leu4 to Phe in mouse FVIIa (mFVIIa) enables its interaction with EPCR. mFVIIa with a Phe4 shows EPCR binding-dependent enhanced hemostatic function in vivo vs. mFVIIa. Defining the FVIIa-EPCR interaction in mice allows for further investigating its biology in vivo. SUMMARY Background Human activated factor VII (hFVIIa), which is used in hemophilia treatment, binds to the endothelial protein C (PC) receptor (EPCR) with unclear hemostatic consequences. Interestingly, mice lack the activated FVII (FVIIa)-EPCR interaction. Therefore, to investigate the hemostatic consequences of this interaction in hemophilia, we previously engineered a mouse FVIIa (mFVIIa) molecule that bound mouse EPCR (mEPCR) by using three substitutions from mouse PC (mPC), i.e. Leu4→Phe, Leu8→Met, and Trp9→Arg. The resulting molecule, mFVIIa-FMR, modeled the EPCR-binding properties of hFVIIa and showed enhanced hemostatic capacity in hemophilic mice versus mFVIIa. These data implied a role of EPCR in the action of hFVIIa in hemophilia treatment. However, the substitutions in mFVIIa-FMR only broadly defined the sequence determinants for its mEPCR interaction and enhanced function in vivo. Objectives To determine the individual contributions of mPC Phe4, Met8 and Arg9 to the in vitro/in vivo properties of mFVIIa-FMR. Methods The mEPCR-binding properties of single amino acid variants of mFVIIa or mPC at position 4, 8 or 9 were investigated. Results and conclusions Phe4 in mFVIIa or mPC was solely critical for interaction with mEPCR. In hemophilic mice, administration of mFVIIa harboring a Phe4 resulted in a 1.9-2.5-fold increased hemostatic capacity versus mFVIIa that was EPCR binding-dependent. This recapitulated previous observations made with triple-mutant mFVIIa-FMR. As Leu8 is crucial for hFVIIa-EPCR binding, we describe the sequence divergence of this interaction in mice, now allowing its further characterization in vivo. We also illustrate that modulation of the EPCR-FVIIa interaction may lead to improved FVIIa therapeutics.
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Affiliation(s)
- G Pavani
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - S M Zintner
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - L Ivanciu
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- The Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- The University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - J C Small
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - K A Stafford
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - J H Szeto
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - P Margaritis
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- The Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- The University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
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Affiliation(s)
- D Feng
- Department of Biology, University of North Carolina, Chapel Hill, NC, USA
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Connolly M, Stafford KA, Coles GC, Kennedy CTC, Downs AMR. Control of head lice with a coconut-derived emulsion shampoo. J Eur Acad Dermatol Venereol 2009; 23:67-9. [DOI: 10.1111/j.1468-3083.2008.02829.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Stafford KA, Lewis PD, Coles GC. Preliminary study of intermittent lighting regimens for red mite (Dermanyssus gallinae) control in poultry houses. Vet Rec 2007; 158:762-3. [PMID: 16751311 DOI: 10.1136/vr.158.22.762] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- K A Stafford
- Department of Clinical Veterinary Science, University of Bristol, Langford House, Langford, Bristol BS40 5DU
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Gawler R, Coles GC, Stafford KA. Prevalence and distribution of the horse louse, Werneckiella equi equi, on hides collected at a horse abattoir in south-west England. Vet Rec 2005; 157:419-20. [PMID: 16199779 DOI: 10.1136/vr.157.14.419] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- R Gawler
- Department of Anatomy, University of Bristol, Southwell Street, Bristol BS2 8EJ, UK
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Affiliation(s)
- M D Fiddes
- Department of Clinical Veterinary Science, University of Bristol, Langford House, Bristol
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Affiliation(s)
- S A Tait
- Department of Clinical Veterinary Science, University of Bristol, Langford House
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Downs AMR, Stafford KA, Hunt LP, Ravenscroft JC, Coles GC. Widespread insecticide resistance in head lice to the over-the-counter pediculocides in England, and the emergence of carbaryl resistance. Br J Dermatol 2002; 146:88-93. [PMID: 11841371 DOI: 10.1046/j.1365-2133.2002.04473.x] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Increasing resistance to insecticides used for the control of head lice infestation has been documented over the last decade. Treatment failure and tolerance to insecticides have been validated in a number of studies undertaken in several U.K. centres. OBJECTIVES To establish the extent of insecticide resistance in head lice and acetylcholinesterase activity in the presence of carbaryl in head lice. METHODS Head lice were collected from school children in four centres across England (Exmouth, Loughborough, Leeds and South Shields), and tested in their response to the insecticides permethrin, phenothrin, malathion and carbaryl. Data were compared with information collected in Bristol and Bath in 1998 and with susceptible body lice. The activity of louse acetylcholinesterase was measured with and without carbaryl in head lice collected in Bristol, Leeds, Loughborough and in body lice. The efficacy of a 1% carbaryl lotion was compared in children in Bristol and Leeds. RESULTS Compared with body lice, head lice from all six centres were significantly different in their response (P < 0.0001) to permethrin, phenothrin and malathion after 2-h exposure tests. There were significant differences in louse acetylcholinesterase activity in body lice, and head lice collected in Loughborough and Bristol in the presence or absence of carbaryl (P < 0.001), indicating enzyme inhibition. However, the difference for lice from Leeds was not significant (P = 0.363) suggesting that the enzyme was resistant to carbaryl. Eighty-nine per cent of children treated in Leeds with carbaryl were cured compared with 100% in Bristol. CONCLUSIONS The data suggest head lice resistance is present in many parts of England to over-the-counter products containing synthetic insecticides (permethrin, phenothrin and malathion). They further suggest that resistance is starting to develop to carbaryl in head lice in Leeds and that extensive use of this product would lead to significant resistance.
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Affiliation(s)
- A M R Downs
- Department of Dermatology, University of Bristol, Bristol, BS2 8HW, UK
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Coles GC, Stafford KA. Activity of oxyclozanide, nitroxynil, clorsulon and albendazole against adult triclabendazole-resistant Fasciola hepatica. Vet Rec 2001; 148:723-4. [PMID: 11430684 DOI: 10.1136/vr.148.23.723] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- G C Coles
- Department of Clinical Veterinary Science, University of Bristol
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Coles G, Stafford KA. Transmission of anthelmintic-resistant nematodes via hay? Vet Rec 2000; 147:144. [PMID: 10958543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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Affiliation(s)
- AM Downs
- Department of Dermatology,Veterinary Science and Public Health, University of Bristol,Bristol BS2 8HW,U.K
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Affiliation(s)
- G C Coles
- Department of Clinical Veterinary Science, University of Bristol
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Abstract
The head louse, Pediculus capitis De Geer (Phthiraptera: Pediculidae) has developed resistance to organochlorines, the organophosphate malathion and to pyrethroids in the U.K. Therefore, headlice from Bristol school children were bioassayed against two new insecticides, fipronil and imidacloprid. Pediculus capitis was fully susceptible to imidacloprid, but it required a relatively high dose and acted slowly. Fipronil acted faster at lower dose, but seemed to be affected by cross-resistance in a small proportion of P. capitis.
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Affiliation(s)
- A M Downs
- Department of Dermatology, University of Bristol, UK
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Abstract
A rising prevalence of head lice among school children and rising sales of insecticides with anecdotal evidence of their treatment failure, led us to examine whether head lice in Bristol and Bath were resistant to the insecticides available for treating head lice. Ten schools in Bristol and Bath were visited to collect field samples of head lice. A comparison was made of the survival rates of fully sensitive laboratory reared body lice and field samples of head lice on insecticide exposure. To confirm the in vitro relevance of these tests we performed supervised treatments of affected subjects with malathion or permethrin. There were significant differences (P < 10-6 Fishers exact test) between head and body lice survival for malathion and permethrin exposure, but not for carbaryl. There was an 87% failure rate for permethrin and a 64% failure rate for malathion with the topical treatment of a selected number of infested school children. We conclude that there is a high resistance to permethrin and malathion, but head lice remain fully sensitive to carbaryl. This is the first report of doubly resistant head lice. As permethrin, phenothrin (a very similar synthetic pyrethroid) or malathion are the active ingredients in all the over-the-counter head lice treatments in the U.K., then it is likely that head lice prevalence will continue to increase. The resistance against permethrin employed by the head louse is probably the kdr (knockdown resistance) mechanism, and an enzyme-mediated malathion-specific esterase is the likely mechanism against malathion.
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Affiliation(s)
- A M Downs
- Departments of Dermatology, Bristol University, Bristol, UK
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Abstract
The response of sheep scab mites to pyrethroid insecticides and organophosphate compounds was studied in vitro with the objective of finding a simple test for detecting insecticide resistance in scab mites. Psoroptes cuniculi from rabbits or P. ovis from sheep were enclosed in small 'tea bags' made from heat sealable paper prior to dipping in insecticide. Mites failed to die 24 h after a 1 min dip in working concentrations of insecticidal sheep dips. With flumethrin a variety of different conditions were tested but most failed to improve the efficacy of flumethrin. It is suggested with freshly collected mites pyrethroids may be taken up by ingestion.
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Affiliation(s)
- G C Coles
- Department of Clinical Veterinary Science, University of Bristol, UK.
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Affiliation(s)
- A M Downs
- Department of Dermatology, Bristol Royal Infirmary, Bristol, UK BS2 8HW
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Coles GC, Stafford KA, MacKay PH. Ivermectin-resistant Cooperia species from calves on a farm in Somerset. Vet Rec 1998; 142:255-6. [PMID: 9549873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Abstract
We have characterized a new ankyrin (ANK) repeat-containing Saccharomyces cerevisiae gene, YAR1, located between the HSP82 and SUI3 genes on chromosome XVI. YAR1 encodes a 200-amino-acid (aa) protein with two ANK repeat motifs and an acidic C terminus rich in PEST-like sequences. The Yar1 ANK repeats are most similar to the conserved ANK repeats in the yeast cell cycle transcription factor, Swi6. We show that YAR1 is transcribed as an 800-nucleotide (nt) poly(A)+ mRNA from a promoter lacking a consensus TATA sequence. YAR1 is transcribed in both haploid and diploid cells, and in haploid cells arrested in G1 with alpha-factor or in S phase with hydroxyurea. YAR1 shares an intergenic region with HSP82, and while HSP82 transcription is induced 15-fold by heat shock, transcription of YAR1 is transiently repressed by heat shock. We show that YAR1 is not an essential gene, but that haploid cells bearing a yar1 deletion grow significantly more slowly than do isogenic wild-type cells, especially at low temperature.
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Affiliation(s)
- D E Lycan
- Department of Biology, Lewis and Clark College, Portland, OR 97219, USA.
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Allman KC, Berry J, Sucharski LA, Stafford KA, Petry NA, Wysor W, Schwaiger M. Determination of extent and location of coronary artery disease in patients without prior myocardial infarction by thallium-201 tomography with pharmacologic stress. J Nucl Med 1992; 33:2067-73. [PMID: 1460494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Seventy-six patients undergoing pharmacologic stress 201TI tomography and coronary angiography within 14 +/- 12 days were studied to determine how well coronary artery disease extent and location could be determined by this scintigraphic technique. No patient had prior myocardial infarction or revascularization. Scintigrams were scored visually and quantitatively. Angiographic lesions > or = 50% were considered significant. Receiver operating characteristic curves were generated for the scintigrams against the angiographic gold standard. Predictive accuracies were determined and compared with the quantitative results. Predictive accuracy was 0.49 for visual and 0.58 for computer identification of single-vessel disease, 0.52 for both visual and computer identification of multivessel disease, 0.64 for both in correctly localizing left anterior descending artery disease, 0.78 versus 0.70 for the right coronary artery and 0.72 versus 0.68 for the left circumflex artery. For the overall detection of disease, the predictive accuracies were 0.79 and 0.80. Although high diagnostic accuracy for detection of coronary artery disease by this approach has been previously documented, the assessment of extent of disease in patients without prior myocardial infarction appears limited.
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Affiliation(s)
- K C Allman
- Department of Internal Medicine, University of Michigan, Ann Arbor 48109-0028
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