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1.
Med J Malaysia ; 76(6): 950-952, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34806694

RESUMEN

Internuclear Ophthalmoplegia (INO) is an inability of the ipsilateral adduction with a contralateral horizontal abducting saccade on attempted gaze to the contra-lesion side. Injury to the medial longitudinal fasciculus (MLF) will obstruct the signalling pathway between the ipsilateral abducens nucleus and the contralateral medial rectus muscle. Infarction accounts for 38% of INO cases with mostly being unilateral (87%), followed by demyelination (34%), which mostly being bilateral (73%). Lacunar infarct is the most common ischemic stroke. INO can be easily missed due to its subtle presentation with no complaints from the patients. A full cranial nerves assessment, includes the extraocular muscles movement, is important. Ischemic and demyelinating INO typically recover. We present here of a case of INO following right lacunar infarct in a 72-year-old Malay woman. She had hypertensive crisis due to missed medications. Her blood pressure was well controlled throughout the hospital admission and finally she was discharged home with continuation of care at her primary facility.


Asunto(s)
Trastornos de la Motilidad Ocular , Accidente Vascular Cerebral Lacunar , Anciano , Diplopía , Femenino , Humanos , Accidente Vascular Cerebral Lacunar/complicaciones
2.
Phys Rev Lett ; 125(11): 117205, 2020 Sep 11.
Artículo en Inglés | MEDLINE | ID: mdl-32975987

RESUMEN

Surface magnetism and its correlation with the electronic structure are critical to understanding the topological surface state in the intrinsic magnetic topological insulator MnBi_{2}Te_{4}. Here, using static and time resolved angle-resolved photoemission spectroscopy (ARPES), we find a significant ARPES intensity change together with a gap opening on a Rashba-like conduction band. Comparison with a model simulation strongly indicates that the surface magnetism on cleaved MnBi_{2}Te_{4} is the same as its bulk state. The inability of surface ferromagnetism to open a gap in the topological surface state uncovers the novel complexity of MnBi_{2}Te_{4} that may be responsible for the low quantum anomalous Hall temperature of exfoliated MnBi_{2}Te_{4}.

3.
Z Rheumatol ; 79(4): 389-392, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32140801

RESUMEN

Rheumatoid arthritis (RA) is an inflammatory polyarthritis that typically affects the small joints but can also involve the manubriosternal joint (MSJ). Although cases of MSJ involvement in RA are rare, such cases present with chest pain, a mass-like lesion, and subluxation. These cases can also be diagnosed incidentally, while patients are asymptomatic. It is important to differentiate RA involving the MSJ from other diseases such as ankylosing spondylitis that can affect the MSJ. Several cases of RA affecting the MSJ have been reported in Western countries, but none have been reported to date in Asia, especially with disease activity of RA. Here, we report a case of RA in the MSJ that was confirmed by imaging and histological investigation in a middle-aged Asian woman.


Asunto(s)
Artritis Reumatoide , Esternón , Asia , Biopsia , Femenino , Humanos , Persona de Mediana Edad , Esternón/patología
4.
BMC Pregnancy Childbirth ; 18(1): 162, 2018 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-29764452

RESUMEN

BACKGROUND: The increase in number of cesarean section (CS) operations has resulted in an increase in cases of isthmocele development. The objective of this study is to determine the risk factors for isthmocele development after CS. METHODS: Isthmocele measurements were taken for 404 women with a history of at least one low transverse CS. The following potential risk factors were investigated: patient's age at CS, cause of CS, weeks of gestation at CS, premature rupture of membrane (PROM), phase of labor, type suture (single/double layer), operation time, uterine flexion (anteversion/retroversion), and blood transfusion during operation. A transvaginal ultrasound was carried out to examine the isthmocele in the uterus after CS, including the shape of the isthmocele, residual myometrial thickness, depth and width of isthmocele, cervical thickness, location of the isthmocele, and clinical characteristics. RESULTS: In our study population, the isthmocele had a prevalence of 73.8%. Most isthmocele had a triangular (65.4%) or semicircular shape (10.4%). The presence of an isthmocele was significantly associated with repeat CS, premature rupture of membrane (PROM), short operation time, and extent of cervix dilatation at CS. The risk of isthmocele was low in women who had placenta previa totalis (PPT), twin, a long operation time, or a transfusion during the operation. CONCLUSIONS: In our study, isthmocele development was significantly associated with repeat CS, PROM, a short operation time, and the extent of cervix dilatation at CS. Therefore, PROM prevention and a more careful uterine closure are needed to reduce the risk of developing an isthmocele after CS.


Asunto(s)
Cesárea/efectos adversos , Cicatriz/etiología , Complicaciones Posoperatorias/etiología , Enfermedades Uterinas/etiología , Adulto , Maduración Cervical , Cesárea Repetida/efectos adversos , Cicatriz/epidemiología , Femenino , Rotura Prematura de Membranas Fetales/cirugía , Humanos , Tempo Operativo , Complicaciones Posoperatorias/epidemiología , Embarazo , Prevalencia , República de Corea/epidemiología , Factores de Riesgo , Suturas/efectos adversos , Enfermedades Uterinas/epidemiología , Útero/patología , Útero/cirugía
5.
Osteoporos Int ; 28(7): 2129-2136, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28293690

RESUMEN

To evaluate a possible correlation between bone mineral density (BMD) and age at menarche, the present study used the BMD dataset of the Korea National Health and Nutrition Examination Survey IV-V (KNHANES IV-V). Age at menarche had a small but significant association with BMD of the lumbar spine in premenopausal Korean females, aged 20-50 years. INTRODUCTION: To investigate any correlation between bone mineral density (BMD) and age at menarche in Korean females using data from the fourth and fifth Korea National Health and Nutrition Examination Survey (KNHANES IV-V; 2008-2011). METHODS: In total, 37,753 individuals participated in health examination surveys between 2008 and 2011. A total of 5032 premenopausal females aged 20-50 years were eligible. Age, height, weight, and age at menarche were assessed. RESULTS: Results from the univariate linear regression and analysis of covariance (ANCOVA) indicated that age (per 1 year), height (per 1 cm), weight (per 1 kg), exercise (per 1 day/week), familial osteoporosis history (yes), parity (n = 0 to ≥4), and menarche age distribution were associated with BMD of the total femur, femur neck, and lumbar spine. After stratifying the bone area and adjusting for age, parity, alcohol intake, smoking, exercise, and familial osteoporosis history, no effect was seen for the total femur or femur neck. Age at menarche 16~17 and ≥18 years groups were associated with BMD of the lumbar spine only. CONCLUSIONS: Age at menarche had a small but significant association with BMD of the lumbar spine in premenopausal Korean females, aged 20-50 years. Females with late menarche may achieve lower peak bone mass at some skeletal sites, which may put them at greater risk for osteoporosis in later life.


Asunto(s)
Densidad Ósea/fisiología , Menarquia/fisiología , Absorciometría de Fotón/métodos , Adulto , Factores de Edad , Estudios Transversales , Femenino , Fémur/fisiología , Cuello Femoral/fisiología , Humanos , Vértebras Lumbares/fisiología , Persona de Mediana Edad , Encuestas Nutricionales , Paridad , Premenopausia/fisiología , Adulto Joven
6.
Phys Rev Lett ; 116(9): 097203, 2016 Mar 04.
Artículo en Inglés | MEDLINE | ID: mdl-26991197

RESUMEN

We report a giant, ∼22%, electroresistance modulation for a metallic alloy above room temperature. It is achieved by a small electric field of 2 kV/cm via piezoelectric strain-mediated magnetoelectric coupling and the resulting magnetic phase transition in epitaxial FeRh/BaTiO_{3} heterostructures. This work presents detailed experimental evidence for an isothermal magnetic phase transition driven by tetragonality modulation in FeRh thin films, which is in contrast to the large volume expansion in the conventional temperature-driven magnetic phase transition in FeRh. Moreover, all the experimental results in this work illustrate FeRh as a mixed-phase model system well similar to phase-separated colossal magnetoresistance systems with phase instability therein.

7.
Eur J Gynaecol Oncol ; 37(6): 876-881, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-29943942

RESUMEN

Uterine sarcomas have rarely been diagnosed after uterine artery embolization. It remains unclear whether the diagnostic work-up is required prior to such embolization to prevent a missed diagnosis of sarcomas and a delay in providing definitive treatment. Because of the rarity and heterogeneity of endometrial stromal neoplasms, little is known about their epidemiology, pathogenesis, and molecular pathology. The authors report a case of low-grade endometrial stromal sarcoma (ESS) diagnosed after uterine fibroid embolization. Although they performed laparoscopic biopsy of the rapidly growing uterine mass, they could not detect the ESS. Although rare, ESS should be considered in the differential diagnosis of uterine fibroid enlargement. It is essential to assess the risk of malignancy by taking into account the patient's clinical symptoms, results of the physical exam, and imaging findings prior to uterine artery embolization. Pathologic diagnosis should include an adequate biopsy sample and the use of molecular genetic testing.


Asunto(s)
Adenomiosis/terapia , Embolización Terapéutica , Neoplasias Endometriales/diagnóstico , Tumores Estromáticos Endometriales/diagnóstico , Leiomioma/terapia , Neoplasias Uterinas/cirugía , Adulto , Neoplasias Endometriales/patología , Tumores Estromáticos Endometriales/patología , Femenino , Humanos
8.
Cell Mol Biol (Noisy-le-grand) ; 61(7): 55-9, 2015 Nov 20.
Artículo en Inglés | MEDLINE | ID: mdl-26602884

RESUMEN

Extremely low-frequency electromagnetic field (ELFEF) is a well-known mechanical stimulation that induces neural differentiation. It is potentially an effective treatment for neurodegenerative diseases. In a previous study, ferritin light chain was upregulated in ELFEF-exposed human bone marrow-derived mesenchymal stem cells (BM-MSCs). Ferritin light chain is a component of ferritin, a highly conserved iron-binding protein. In this study, to identify molecules associated with ferritin during neural differentiation of BM-MSCs, we performed reverse transcription polymerase chain reaction (RT-PCR), western blotting, and ATP analysis. Our data indicated that ELFEF triggers the upregulation of ferritin light chain (FLC) and ferritin heavy chain (FHC) in BM-MSCs. The elevated levels of FLC and FHC correlated positively with the differentiation of BM-MSCs into neural cells. Moreover ELFEF induced the activation of iron regulatory protein-1 (IRP-1) and cofilin, which are downstream targets of ferritin. These results suggest that ELFEF induces neural differentiation through activation of a ferritin-regulated mechanism.


Asunto(s)
Ferritinas/metabolismo , Células Madre Mesenquimatosas/citología , Adenosina Trifosfato/metabolismo , Células de la Médula Ósea/citología , Diferenciación Celular/efectos de los fármacos , Diferenciación Celular/fisiología , Deferoxamina/farmacología , Campos Electromagnéticos , Ferritinas/genética , Regulación de la Expresión Génica , Humanos , Células Madre Mesenquimatosas/efectos de los fármacos , Células Madre Mesenquimatosas/fisiología , Neuronas/citología , Neuronas/fisiología
9.
Int J Clin Pract ; 69(11): 1309-15, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-26215431

RESUMEN

OBJECTIVES: Anticholinergics are currently the mainstay for the management of overactive bladder (OAB). However, low drug adherence has been noted with these medications. The aim of this study was to determine whether a health education intervention (HEI) could improve drug persistence with anticholinergics in OAB patients. METHODS: We enrolled 682 OAB patients who were randomly distributed into either the HEI plus fesoterodine (HEI) group or the fesoterodine alone (control) group. The HEI consists of four education sections: understanding OAB disease, dietary control, bladder training and understanding anticholinergics. The primary end-point was the difference in drug persistence between the HEI and control groups at 24 weeks. Persistence was defined as a gap ≤ 30 days between successive prescription pills. RESULTS: Among the 682 patients, 210 (30.8%) completed 24 weeks of study. Persistence of the HEI group at 6 months was not statistically higher than that of the control group (40.4% vs. 34.9%, p = 0.181). Compliance at 6 months was also similar between the two groups (38.5% vs. 32.5%, p = 0.128). Using OAB symptom score questionnaire, the efficacy of the two groups was not different at each follow-up (p > 0.05). The global response was similar between the two groups. However, the HEI group was more satisfied with treatment than the control group (p = 0.034). The most common reason for discontinuation was satisfaction with the treatment so that they did not need to follow-up, followed by inadequate efficacy in both groups. Adverse events were reported in 12.3% of patients. CONCLUSIONS: The health education intervention was not effective to increase drug persistence in OAB patients on anticholinergics.


Asunto(s)
Compuestos de Bencidrilo/uso terapéutico , Antagonistas Colinérgicos/uso terapéutico , Cumplimiento de la Medicación/estadística & datos numéricos , Antagonistas Muscarínicos/uso terapéutico , Educación del Paciente como Asunto/métodos , Vejiga Urinaria Hiperactiva/tratamiento farmacológico , Adulto , Anciano , Femenino , Humanos , Persona de Mediana Edad , Calidad de Vida , Encuestas y Cuestionarios
10.
Int J Clin Pract ; 69(4): 444-53, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25363606

RESUMEN

AIM: To explore the rate of add-on therapy with solifenacin in men with voiding and storage lower urinary tract symptoms (LUTS) after tamsulosin monotherapy and to explore predictive factors for starting solifenacin add-on therapy. METHODS: Men aged ≥ 45 years with IPSS ≥ 12 and symptoms of OAB (OAB-V8 ≥ 8, micturition ≥ 8/24 h, urgency ≥ 2/24 h) were enrolled to receive tamsulosin 0.2 mg once daily. After 4 weeks, men with residual symptoms of OAB and reported 'dissatisfied' or 'a little satisfied' were received solifenacin 5 mg in combination with tamsulosin monotherapy. Subjects completed an IPSS, a Quality of life (QoL) index, OAB V8, and an International Consultation of Incontinence Questionnaire (ICIQ)-Male LUTS, and patient perception of bladder condition (PPBC) at baseline and week 4. RESULTS: Of a total of 305 patients, 254 patients completed 4 weeks of tamsulosin treatment. For 176 patients, solifenacin was added (69.3%). Significant predictive factors of solifenacin add-on therapy included long LUTS duration, high IPSS, number of micturitions per 24 h, more urgency episodes, high urgency severity score in a voiding diary and high OAB V8 score. Based on multivariable analysis, potential predictive factors of solifenacin add-on therapy included long LUTS duration (OR = 1.008, 95% CI: 1.001-1.014), high serum PSA (OR = 1.543, 95% CI: 1.136-2.095) and small prostate size (OR = 0.970, 95% CI: 0.947-0.994) (p < 0.05). IPSS, daytime micturitions and urgency episodes, OAB V8 scores, ICIQ and PPBC were improved after tamsulosin monotherapy. CONCLUSIONS: Two thirds of men with voiding and storage LUTS needed to add anticholinergics after 4 weeks of tamsulosin monotherapy. Patients with longer lasting symptoms and storage symptoms with small prostate volume may require the anticholinergic add-on.


Asunto(s)
Antagonistas de Receptores Adrenérgicos alfa 1/uso terapéutico , Antagonistas Muscarínicos/uso terapéutico , Succinato de Solifenacina/uso terapéutico , Sulfonamidas/uso terapéutico , Vejiga Urinaria Hiperactiva/tratamiento farmacológico , Agentes Urológicos/uso terapéutico , Anciano , Anciano de 80 o más Años , Quimioterapia Combinada , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Calidad de Vida , Tamsulosina
11.
Phys Rev Lett ; 110(1): 017401, 2013 Jan 04.
Artículo en Inglés | MEDLINE | ID: mdl-23383835

RESUMEN

Resonant soft-x-ray scattering measurements have been performed to investigate interface electronic structures of (LaAlO(3)/SrTiO(3)) superlattices. Resonant scattering intensities at superlattice reflections show clear evidence of degeneracy lifting in t(2g) states of interface Ti ions. Polarization dependence of intensities indicates the energy of d(xy) states is lower by ~1 eV than two other t(2g) states. The energy splitting is insensitive to epitaxial strain. The orbital reconstruction is induced by oxygen vacancies and confined to the interface within two unit cells, indicating charge compensation at the polar interfaces.


Asunto(s)
Modelos Químicos , Óxidos/química , Oxígeno/química , Estroncio/química , Titanio/química , Difracción de Rayos X/métodos , Aluminio/química , Cationes/química , Lantano/química
12.
Nat Commun ; 14(1): 1945, 2023 Apr 07.
Artículo en Inglés | MEDLINE | ID: mdl-37029104

RESUMEN

In crystalline materials, electron-phonon coupling (EPC) is a ubiquitous many-body interaction that drives conventional Bardeen-Cooper-Schrieffer superconductivity. Recently, in a new kagome metal CsV3Sb5, superconductivity that possibly intertwines with time-reversal and spatial symmetry-breaking orders is observed. Density functional theory calculations predicted weak EPC strength, λ, supporting an unconventional pairing mechanism in CsV3Sb5. However, experimental determination of λ is still missing, hindering a microscopic understanding of the intertwined ground state of CsV3Sb5. Here, using 7-eV laser-based angle-resolved photoemission spectroscopy and Eliashberg function analysis, we determine an intermediate λ=0.45-0.6 at T = 6 K for both Sb 5p and V 3d electronic bands, which can support a conventional superconducting transition temperature on the same magnitude of experimental value in CsV3Sb5. Remarkably, the EPC on the V 3d-band enhances to λ~0.75 as the superconducting transition temperature elevated to 4.4 K in Cs(V0.93Nb0.07)3Sb5. Our results provide an important clue to understand the pairing mechanism in the kagome superconductor CsV3Sb5.

13.
Nat Commun ; 14(1): 6183, 2023 Oct 04.
Artículo en Inglés | MEDLINE | ID: mdl-37793998

RESUMEN

The intertwining between spin, charge, and lattice degrees of freedom can give rise to unusual macroscopic quantum states, including high-temperature superconductivity and quantum anomalous Hall effects. Recently, a charge density wave (CDW) has been observed in the kagome antiferromagnet FeGe, indicative of possible intertwining physics. An outstanding question is that whether magnetic correlation is fundamental for the spontaneous spatial symmetry breaking orders. Here, utilizing elastic and high-resolution inelastic x-ray scattering, we observe a c-axis superlattice vector that coexists with the 2[Formula: see text]2[Formula: see text]1 CDW vectors in the kagome plane. Most interestingly, between the magnetic and CDW transition temperatures, the phonon dynamical structure factor shows a giant phonon-energy hardening and a substantial phonon linewidth broadening near the c-axis wavevectors, both signaling the spin-phonon coupling. By first principles and model calculations, we show that both the static spin polarization and dynamic spin excitations intertwine with the phonon to drive the spatial symmetry breaking in FeGe.

14.
Eur J Gynaecol Oncol ; 33(5): 526-7, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-23185803

RESUMEN

Borderline ovarian tumor with sarcoma-like mural nodule is rare. Malignant mural nodules usually occur in the wall of an atypical proliferative mucinous tumor or a mucinous carcinoma. The authors report one case of unfavorably progressive borderline tumor of the ovary with sarcoma-like mural nodule that produced granulocyte colony-stimulating factor (G-CSF).


Asunto(s)
Cistoadenoma Mucinoso/patología , Factor Estimulante de Colonias de Granulocitos/biosíntesis , Neoplasias Ováricas/patología , Sarcoma/patología , Adulto , Cistoadenoma Mucinoso/metabolismo , Femenino , Humanos , Neoplasias Ováricas/metabolismo , Sarcoma/metabolismo
15.
Nat Commun ; 13(1): 6348, 2022 Oct 26.
Artículo en Inglés | MEDLINE | ID: mdl-36289236

RESUMEN

The electronic instabilities in CsV3Sb5 are believed to originate from the V 3d-electrons on the kagome plane, however the role of Sb 5p-electrons for 3-dimensional orders is largely unexplored. Here, using resonant tender X-ray scattering and high-pressure X-ray scattering, we report a rare realization of conjoined charge density waves (CDWs) in CsV3Sb5, where a 2 × 2 × 1 CDW in the kagome sublattice and a Sb 5p-electron assisted 2 × 2 × 2 CDW coexist. At ambient pressure, we discover a resonant enhancement on Sb L1-edge (2s→5p) at the 2 × 2 × 2 CDW wavevectors. The resonance, however, is absent at the 2 × 2 × 1 CDW wavevectors. Applying hydrostatic pressure, CDW transition temperatures are separated, where the 2 × 2 × 2 CDW emerges 4 K above the 2 × 2 × 1 CDW at 1 GPa. These observations demonstrate that symmetry-breaking phases in CsV3Sb5 go beyond the minimal framework of kagome electronic bands near van Hove filling.

16.
Eur J Gynaecol Oncol ; 32(1): 69-72, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21446329

RESUMEN

PURPOSE: The goal of this study was to evaluate the incidence and clinical features of borderline ovarian tumors (BOTS). METHODS: We retrospectively performed chart reviews of 22 patients with BOTS who were diagnosed and treated in the university medical center from 1998 to 2009 inclusively. RESULTS: BOTS among ovarian pathology in our hospital were detected in 22 patients (1.79%). The mean age was 50 years, range (20-90). Post surgical FIGO staging was Stage I = 86.4%, and Stage II = 13.6%. The most common histologic subtype was mucinous (59%). Five patients (22.7%) had a unilocular cyst at ultrasonography. Conservative surgery was performed in 31.8%. One patient of them had normal spontaneous delivery after term pregnancy. Two patients had a recurrence. One patient with recurrent disease underwent transformation to invasive cancer and died 35 months after the initial diagnosis. CONCLUSION: Clinicians should warn patients about the early relapse of BOTS and these patients may need careful follow-up due to the possibility of recurrences.


Asunto(s)
Neoplasias Ováricas/patología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Estadificación de Neoplasias , Neoplasias Ováricas/mortalidad , Neoplasias Ováricas/cirugía , Estudios Retrospectivos , Adulto Joven
17.
Eur J Gynaecol Oncol ; 32(1): 103-6, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21446338

RESUMEN

Adenomyoma is a benign tumor composed of smooth muscle and benign endometrium. These tumors typically originate within the uterus. An extrauterine adenomyoma is an extremely rare entity. After an extensive literature search, only four cases of primary ovarian adenomyoma appear to have thus far been reported. Here, we report a case of ovarian adenomyoma in a 39-year-old woman mimicking malignant neoplasma of the ovary, along with a brief literature review.


Asunto(s)
Adenomioma/patología , Neoplasias Ováricas/patología , Adenomioma/diagnóstico , Adulto , Femenino , Humanos , Neoplasias Ováricas/diagnóstico
18.
Nat Commun ; 12(1): 3513, 2021 Jun 10.
Artículo en Inglés | MEDLINE | ID: mdl-34112804

RESUMEN

The Kitaev quantum spin liquid epitomizes an entangled topological state, for which two flavors of fractionalized low-energy excitations are predicted: the itinerant Majorana fermion and the Z2 gauge flux. It was proposed recently that fingerprints of fractional excitations are encoded in the phonon spectra of Kitaev quantum spin liquids through a novel fractional-excitation-phonon coupling. Here, we detect anomalous phonon effects in α-RuCl3 using inelastic X-ray scattering with meV resolution. At high temperature, we discover interlaced optical phonons intercepting a transverse acoustic phonon between 3 and 7 meV. Upon decreasing temperature, the optical phonons display a large intensity enhancement near the Kitaev energy, JK~8 meV, that coincides with a giant acoustic phonon softening near the Z2 gauge flux energy scale. These phonon anomalies signify the coupling of phonon and Kitaev magnetic excitations in α-RuCl3 and demonstrates a proof-of-principle method to detect anomalous excitations in topological quantum materials.

20.
Allergy ; 64(8): 1221-5, 2009 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-19222424

RESUMEN

BACKGROUND: It has been known that interleukin (IL)-10 promoter polymorphisms at -1082A/G, -819T/C and -592A/C, may influence IL-10 expression and associate with asthma. Interleukin-10 facilitates the regulatory function of transforming growth factor (TGF)-beta. The goal of this study was to investigate a gene-gene interaction between IL-10 and TGF-beta1 polymorphisms in Korean asthmatics with aspirin hypersensitivity. METHODS: Single-nucleotide polymorphism genotyping of IL-10 and TGF-beta1 genes was performed and the functional effect of the IL-10 polymorphisms was analysed applying a luciferase reporter assay and an electrophoretic mobility shift assay. RESULTS: Among the patients with asthma, polymorphism at -1082A/G was significantly associated with the phenotype of aspirin-intolerant asthma, AIA (P = 0.007, P(c) = 0.021). Moreover, a synergistic effect between the TGF-beta1-509C/T and IL-10-1082A/G polymorphisms on the phenotype of AIA was noted; when stratified by the presence of rhinosinusitis, the frequency of rare alleles (the CT or TT genotype of TGF-beta1-509C/T and AG or GG genotype of IL-10-1082A/G) was significantly higher in the patients with AIA (15.2%) when compared with those with ATA (6.3%, P = 0.031; odds ratio 4.111; 95% confidence interval 1.504-11.235). In an in vitro functional assay, the -1082G reporter plasmid exhibited significantly greater promoter activity when compared with the -1082A construct in Jurkat T cells (P = 0.011). Moreover, we found that the transcription factor Myc-associated zinc-finger protein preferentially bound the -1082G allele. CONCLUSION: Our results suggest that IL-10 promoter polymorphisms contribute to the development of AIA and that rhinosinusitis may interact genetically with TGF-beta1.


Asunto(s)
Aspirina/efectos adversos , Asma/genética , Hipersensibilidad a las Drogas/genética , Interleucina-10/genética , Rinitis Alérgica Perenne/genética , Sinusitis/genética , Factor de Crecimiento Transformador beta1/genética , Adulto , Alelos , Aspirina/inmunología , Asma/inmunología , Hipersensibilidad a las Drogas/inmunología , Epistasis Genética , Femenino , Frecuencia de los Genes , Predisposición Genética a la Enfermedad , Humanos , Células Jurkat , Corea (Geográfico) , Masculino , Polimorfismo Genético , Regiones Promotoras Genéticas/genética , Rinitis Alérgica Perenne/inmunología , Sinusitis/inmunología
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