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1.
Skin Res Technol ; 30(4): e13678, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38616507

RESUMEN

BACKGROUND: We developed and tested the safety and efficacy of a cosmetic device to improve dark circles using electrical muscle stimulation of the orbicularis oculi muscle. METHODS: Overall, 18 participants (36 eyes) were studied. The following five items were evaluated before and after the intervention:(1) the Clinical Dark Circle Score using clinical findings and photographs, (2) transcutaneous oxygen partial pressure (TcPO2) on the lower eyelid, (3) thermography, (4) two-dimensional laser blood flowmetry, and (5) spectrophotometry. RESULTS: The mean score at baseline was 2.0 ± 0.90 (mean ± standard deviation), and that at the end of the study was 1.2 ± 1.0 (Wilcoxon signed-rank sum test, p < 0.0001), indicating a significant reduction. The spectrophotometer showed a significant decrease in a* and L* values before and after use (Wilcoxon signed-rank sum test, p < 0.0001). There was also a weak negative correlation between the change in score and the change in blood flow and TcPO2 measured using a laser perfusion device (Spearman's rank correlation coefficient, r = -0.32 and -0.39, respectively). Stratified analysis of the baseline score showed a strong negative correlation between the change in score and the change in spectrophotometric a* in the subjects/group with mild periocular dark circles (Spearman's rank correlation coefficient, r = -0.46). Contrastingly, no correlation was observed for any of the measurements in the subjects/group with severe periocular dark circles. After 1 month, no device-related ophthalmic adverse events were observed in any of the participants. CONCLUSION: Electrical muscle stimulation could improve periocular dark circles, especially in the subjects/group with mild periocular dark circles, and was safe.


Asunto(s)
Párpados , Músculos Faciales , Humanos , Cara , Estimulación Eléctrica , Electricidad
2.
Ophthalmology ; 130(4): 361-372, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36423732

RESUMEN

PURPOSE: To investigate the genetic architecture of age-related macular degeneration (AMD) in a Japanese population. DESIGN: Genome-wide association study (GWAS). PARTICIPANTS: Three thousand seven hundred seventy-two patients with AMD and 16 770 control participants from the Japanese population were enrolled in the association analyses. METHODS: We conducted a meta-analysis of 2 independent GWASs that included a total of 2663 patients with AMD and 9471 control participants using the imputation reference panel for genotype imputation specified for the Japanese population (n = 3541). A replication study was performed using an independent set of 1109 patients with AMD and 7299 control participants. MAIN OUTCOME MEASURES: Associations of genetic variants with AMD. RESULTS: A meta-analysis of the 2 GWASs identified 6 loci significantly associated with AMD (P < 5.0 × 10-8). Of these loci, 4 were known to be associated with AMD (CFH, C2/FB, TNFRSF10A, and ARMS2), and 2 were novel (rs4147157 near WBP1L and rs76228488 near GATA5). The newly identified associations were confirmed in a replication study (P < 0.01). After the meta-analysis of all datasets, we observed strong associations in these loci (P = 1.88 × 10-12 and P = 1.35 × 10-9 for meta-analysis for rs4147157 and rs76228488, respectively). When we looked up the associations in the reported central serous chorioretinopathy (CSC) GWAS conducted in the Japanese population, both loci were associated significantly with CSC (P = 4.86 × 10-3 and P = 4.28 × 10-3 for rs4147157 and rs76228488, respectively). We performed a genetic colocalization analysis for these loci and estimated that the posterior probabilities of shared causal variants between AMD and CSC were 0.39 and 0.60 for WBP1L and GATA5, respectively. Genetic correlation analysis focusing on the epidemiologically suggested clinical risk factors implicated shared polygenic architecture between AMD and smoking cessation (rg [the measure of genetic correlation] = -0.33; P = 0.01; false discovery rate, 0.099). CONCLUSIONS: Our findings imply shared genetic components conferring the risk of both AMD and CSC. FINANCIAL DISCLOSURE(S): Proprietary or commercial disclosure may be found after the references.


Asunto(s)
Coriorretinopatía Serosa Central , Degeneración Macular , Humanos , Estudio de Asociación del Genoma Completo , Predisposición Genética a la Enfermedad , Coriorretinopatía Serosa Central/diagnóstico , Coriorretinopatía Serosa Central/genética , Degeneración Macular/genética , Genotipo , Polimorfismo de Nucleótido Simple , Sitios Genéticos
3.
Dig Dis ; 41(6): 845-851, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37708872

RESUMEN

INTRODUCTION: There is evidence regarding the association between dysmenorrhea and irritable bowel syndrome (IBS), although it is lacking in the Asian population. Therefore, the purpose of this study was to investigate the association between menstrual status and IBS in a young Japanese. METHODS: Overall, 4,693 female college students were included in the analysis of this study. Information regarding lifestyle habits, menstrual status (irregularity, pain severity, and medication), and IBS (Rome III criteria) was obtained using a self-reported questionnaire. Age, body mass index, exercise habits, smoking, drinking habits, and anemia were analyzed as potential confounders. RESULTS: The prevalence of IBS was 6.1%. Moderate {adjusted odds ratio (OR): 1.89 (95% confidence interval [CI]: 1.27-2.91)} and heavy (adjusted OR: 2.14 [95% CI: 1.42-3.45]) menstrual pain were independently positively associated with IBS (p for trend = 0.001). Using medication sometimes (adjusted OR: 1.41 [95% CI: 1.09-1.84]) and often (adjusted OR: 1.60 [95% CI: 1.13-2.24]) was independently positively associated with IBS. There was no association between menstrual cycle and IBS. In subjects without functional dyspepsia, irregular menstrual cycle was independently positively associated with IBS. CONCLUSION: In the young Japanese population, menstrual pain and medications for menstrual pain may have a significant positive association with IBS.


Asunto(s)
Síndrome del Colon Irritable , Humanos , Femenino , Síndrome del Colon Irritable/complicaciones , Síndrome del Colon Irritable/epidemiología , Estudios Transversales , Prevalencia , Japón/epidemiología , Dismenorrea/complicaciones
4.
Int J Colorectal Dis ; 37(11): 2357-2363, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36264423

RESUMEN

PURPOSE: The association between body mass index (BMI) and irritable bowel syndrome (IBS) has been inconsistent in the Asian population. Also, no evidence regarding this issue in the young population exists. The aim of the present study is to investigate the association between BMI and IBS based on the Rome III criteria in young Japanese people. METHODS: This study was a cross-sectional study consisted of 8923 Japanese university students. The definition of IBS was based on the Rome III criteria. BMI was divided into four categories (quartiles) on the basis of the study subjects' distribution (lowest, low, moderate, and high [reference]). The definition of lean, normal, and overweight was BMI < 18.5 kg/m2, 18.5 ≤ BMI < 25 kg/m2 (reference), and 25 ≤ BMI kg/m2, respectively. Age, sex, drinking, smoking, exercise habit, anemia, and sports injury were selected a priori as potential confounding factors. RESULTS: The prevalence of IBS was 6.5%, with females having a significantly higher prevalence than males (6.0% vs. 7.2%, p = 0.029). In females, being overweight was independently positively associated with IBS after adjustment (adjusted odds ratio [OR]: 1.81 [95% confidence interval (CI): 1.13-2.79]). In contrast, in males, no association between being lean or overweight and IBS was found. CONCLUSIONS: Among the young Japanese population, being overweight might be independently positively associated with prevalence of IBS in females but not in males.


Asunto(s)
Síndrome del Colon Irritable , Masculino , Femenino , Humanos , Síndrome del Colon Irritable/complicaciones , Síndrome del Colon Irritable/epidemiología , Índice de Masa Corporal , Estudios Transversales , Sobrepeso/complicaciones , Sobrepeso/epidemiología , Japón/epidemiología , Prevalencia , Encuestas y Cuestionarios
5.
Support Care Cancer ; 30(8): 6775-6783, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35524869

RESUMEN

PURPOSE: The dose-limiting factor of ramucirumab plus docetaxel (RAM + DTX) in patients with non-small cell lung cancer (NSCLC) is febrile neutropenia (FN), which has a high incidence in Asians. This study aimed to evaluate the cost-effectiveness of pegfilgrastim (Peg-G) in patients with NSCLC receiving RAM + DTX in Japan. METHODS: We simulated model patients treated with RAM + DTX in Japan and developed a decision-analytical model for patients receiving Peg-G prophylaxis or no primary prophylaxis. The expected cost, quality-adjusted life-year (QALY), and incremental cost-effectiveness ratio (ICER) of each treatment were calculated from the perspective of a Japanese healthcare payer. The willingness-to-pay (WTP) threshold was set at 45,867 United States dollars (USD) (5 million Japanese yen) per QALY gained. The probabilities, utility values, and other costs were obtained from published sources. Deterministic sensitivity analysis (DSA) and probabilistic analysis were conducted to evaluate the effect of each parameter and robustness of the base-case results. RESULTS: The expected cost and QALYs were 20,275 USD and 0.701 for Peg-G prophylaxis and 17,493 USD and 0.672 for no primary prophylaxis, respectively. The ICER was calculated to be 97,519 USD per QALY gained. The results were most sensitive to FN risk with Peg-G. When FN risk with no primary prophylaxis exceeded 51% or the cost of Peg-G was less than 649 USD per injection, the ICER was below the WTP threshold. The probabilistic analysis revealed a 9.1% probability that the ICER was below the WTP threshold. CONCLUSION: Peg-G is not cost-effective in patients with NSCLC receiving RAM + DTX in Japan.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Anticuerpos Monoclonales Humanizados , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Análisis Costo-Beneficio , Docetaxel , Filgrastim , Factor Estimulante de Colonias de Granulocitos/uso terapéutico , Humanos , Japón , Neoplasias Pulmonares/tratamiento farmacológico , Polietilenglicoles , Años de Vida Ajustados por Calidad de Vida , Ramucirumab
6.
Dig Dis Sci ; 67(6): 2293-2298, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-33945062

RESUMEN

BACKGROUND: Functional dyspepsia (FD) has a high prevalence worldwide and reduces patients' quality of life. The etiology of FD is likely multifactorial. Although two studies showed an inverse association between exercise habits and FD, evidence regarding the association between exercise habits and FD remains scarce. AIMS: This study aimed to investigate the association between exercise habits and FD among the young Japanese population, taking the presence or absence of an exercise partner as an additional variable. METHODS: The study subjects consisted of 8923 Japanese university students. The definition of FD was based on the Rome III criteria. Information on exercise frequency, exercise intensity, and exercise partners was obtained from a self-administered questionnaire. RESULTS: The prevalence of FD was 1.9% in this cohort. Low, moderate, and high frequency of exercise was independently inversely associated with FD (adjusted odds ratio [OR] was low: OR 0.69 [95% confidence interval (CI) 0.47-0.997], moderate: OR 0.53 [95% CI 0.34-0.81] and high: OR 0.53 [95% CI 0.30-0.88], p for trend p = 0.002). Moderate and high intensity of exercise was independently inversely associated with FD (moderate: OR 0.56 [95% CI 0.36-0.84] and high: OR 0.49 [95% CI 0.30-0.76], p for trend p = 0.001). Exercise with groups and with friends was independently inversely associated with FD whereas the association between exercising alone and FD was not significant (groups: OR 0.28 [95% CI 0.14-0.50] and friends: OR 0.44 [95% CI 0.24-0.74]). CONCLUSION: Among the young Japanese population, frequency and intensity of exercise may be independently inversely associated with FD. Additionally, exercise with groups and with friends but not by oneself was inversely associated with exercise and FD, respectively.


Asunto(s)
Dispepsia , Dispepsia/epidemiología , Dispepsia/etiología , Hábitos , Humanos , Japón/epidemiología , Prevalencia , Calidad de Vida , Encuestas y Cuestionarios
7.
Dig Dis Sci ; 67(8): 3929-3937, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-34618281

RESUMEN

BACKGROUND: Evidence regarding the association between sleep disturbance and functional dyspepsia (FD) remains limited in the young population. AIMS: This study aimed to investigate the association between sleep disturbance and FD including subgroups among Japanese young people. METHODS: Study subjects were 8923 university students. FD was defined according to the Rome III criteria. Subjects with FD were further categorized as having postprandial distress syndrome (PDS) or epigastric pain syndrome (EPS). Subjects completed a self-reported questionnaire assessing self-reported sleep duration, sleep disturbance, difficulty falling asleep, deep sleep disorder, nocturnal awakening, early awakening, and daytime sleepiness. RESULTS: The prevalence of FD was 1.9%. After adjustment, all types of sleep disturbances were independently positively associated with FD (total sleep disturbance: OR 4.11 [95% CI: 2.89-5.78], difficulty falling asleep: OR 3.97 [95% CI: 2.53-6.01], deep sleep disorder: OR 4.85 [95% CI: 3.06-7.40], nocturnal awakening: OR 4.35 [95% CI: 1.90-8.67], early awakening: OR 4.50 [95% CI: 1.97-8.97], and daytime sleepiness: OR 2.83 [95% CI: 1.25-5.56]). While nocturnal awakening and daytime sleepiness were not associated with EPS, the other types of sleep disturbance were independently positively associated with EPS and PDS. No association between self-reported sleep duration and FD was found. CONCLUSIONS: Sleep disturbance may be independently positively associated with the prevalence of FD among Japanese young people. Nocturnal awakening and daytime sleepiness were not associated with EPS; the other types of sleep disturbance were independently positively associated with EPS and PDS.


Asunto(s)
Trastornos de Somnolencia Excesiva , Dispepsia , Gastritis , Trastornos del Sueño-Vigilia , Dolor Abdominal , Adolescente , Trastornos de Somnolencia Excesiva/complicaciones , Dispepsia/epidemiología , Gastritis/complicaciones , Humanos , Japón/epidemiología , Periodo Posprandial , Prevalencia , Sueño , Trastornos del Sueño-Vigilia/complicaciones , Trastornos del Sueño-Vigilia/epidemiología , Síndrome
8.
J Phycol ; 57(2): 454-472, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-32975311

RESUMEN

The taxonomic status and species diversity of the brown algal genus Padina (Dictyotales, Phaeophyceae) was assessed based on DNA sequences and the morpho-anatomy of specimens collected worldwide, especially from tropical and subtropical western Pacific regions. Phylogenetic analyses using chloroplast rbcL and mitochondrial cox3 gene sequences demonstrated four distinct clades for newly collected samples with high bootstrap support. Each species clade possesses a suite of morphological features that are not shared by any known species of Padina. These are P. imbricata sp. nov., Padina lutea sp. nov., P. moffittianoides sp. nov., and P. nitida sp. nov. The occurrence of these and other species of Padina clearly points to an elevated diversity of the genus in tropical/subtropical waters of the western Pacific. Phylogenetic analyses provided new insights into biogeographic characteristics of the genus, with many species in the Pacific Ocean showing shared/overlapping distributions, whereas species from the Mediterranean/Atlantic and/or the Indian Ocean tend to be confined to particular regions. Consideration has also been given to the evolutionary time frame of the genus Padina based on molecular time trees: a time tree of the concatenated data set (rbcL + cox3) revealed the estimated divergence time in the mid-Cretaceous, whereas those of cox3 and rbcL showed older estimates pointing to the periods of mid-Jurassic and Early Cretaceous, respectively.


Asunto(s)
Phaeophyceae , Evolución Biológica , Océano Índico , Océano Pacífico , Filogenia
9.
J Cell Sci ; 132(4)2018 08 28.
Artículo en Inglés | MEDLINE | ID: mdl-30082277

RESUMEN

Age-related macular degeneration (AMD) is a leading cause of blindness in people over 50 years of age in many developed countries. Drusen are yellowish extracellular deposits beneath retinal pigment epithelium (RPE) found in aging eyes and considered as a biomarker of AMD. However, the biogenesis of drusen has not been elucidated. We reported previously that multicellular spheroids of human RPE cells constructed a well-differentiated monolayer of RPE with a Bruch's membrane. We determined that RPE spheroids exhibited drusen formation between the RPE and Bruch's membrane with expression of many drusen-associated proteins, such as amyloid ß and complement components, the expression of which was altered by a challenge with oxidative stress. Artificial lipofuscin-loaded RPE spheroids yielded drusen more frequently. In the current study, we showed that drusen originates from the RPE. This culture system is an attractive tool for use as an in vitro drusen model, which might help elucidate the biogenesis of drusen and the pathogenesis of related diseases, such as AMD.


Asunto(s)
Lámina Basal de la Coroides/metabolismo , Retina/metabolismo , Epitelio Pigmentado de la Retina/metabolismo , Pigmentos Retinianos/metabolismo , Péptidos beta-Amiloides/metabolismo , Biomarcadores/metabolismo , Células Epiteliales/metabolismo , Humanos , Imagenología Tridimensional/métodos , Degeneración Macular/metabolismo , Degeneración Macular/patología , Retina/patología , Epitelio Pigmentado de la Retina/patología , Esferoides Celulares/metabolismo
10.
Graefes Arch Clin Exp Ophthalmol ; 256(10): 1823-1829, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-29961921

RESUMEN

PURPOSE: Pneumatic displacement of submacular hemorrhages (SMHs) with intravitreal injection of sulfur hexafluoride (SF6) gas with or without tissue plasminogen activator (tPA) and prone posturing is an effective minimally invasive treatment. We observed some cases in which simultaneous flattening of hemorrhagic pigment epithelial detachments (PEDs) occurred after prone posturing. This study evaluated the impact of pneumatic displacement using tPA to treat PEDs and visual outcomes in eyes with SMHs secondary to neovascular age-related macular degeneration (AMD). METHODS: This retrospective analysis reviewed the medical records of 32 patients (33 eyes) who underwent pneumatic displacement for AMD-associated SMHs. The SMHs were related to polypoidal choroidal vasculopathy (PCV) in 24 eyes and typical AMD in nine eyes and treated with intravitreal injection of SF6 gas with tPA. We assessed the postoperative best-corrected visual acuities (BCVAs), prevalence and flattening rates of the PEDs, and the number of additional treatments. RESULTS: The mean follow-up period was 35.4 ± 19.8 months. The BCVAs improved significantly in eyes with PCV compared with eyes with typical AMD. Thirty-one (93.9%) of 33 eyes had an accompanying PED. The PEDs flattened in 14 (58.3%) of 24 eyes with PCV but in only one (14.3%) of seven eyes with typical AMD (p = 0.04). A mean of one additional treatment was administered during the first year in 15 eyes with flattened PEDs, which was significantly (p < 0.05) fewer than the 3.6 additional treatments in 16 eyes with persistent PEDs. CONCLUSIONS: PEDs often accompany SMHs secondary to neovascular AMD. Pneumatic displacement of the SMHs using tPA unexpectedly flattened the PEDs, especially in eyes with PCV, and was associated with fewer additional treatments.


Asunto(s)
Endotaponamiento/métodos , Desprendimiento de Retina/terapia , Hemorragia Retiniana/terapia , Hexafluoruro de Azufre/administración & dosificación , Activador de Tejido Plasminógeno/administración & dosificación , Agudeza Visual , Degeneración Macular Húmeda/complicaciones , Anciano , Anciano de 80 o más Años , Femenino , Fibrinolíticos/administración & dosificación , Angiografía con Fluoresceína , Estudios de Seguimiento , Fondo de Ojo , Humanos , Inyecciones Intravítreas , Masculino , Persona de Mediana Edad , Desprendimiento de Retina/diagnóstico , Desprendimiento de Retina/etiología , Hemorragia Retiniana/complicaciones , Hemorragia Retiniana/diagnóstico , Estudios Retrospectivos , Tomografía de Coherencia Óptica , Degeneración Macular Húmeda/diagnóstico , Degeneración Macular Húmeda/terapia
11.
Ophthalmic Res ; 59(3): 170-175, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29533953

RESUMEN

AIMS: Anti-vascular endothelial growth factor agents effectively treat age-related macular degeneration and myopic choroidal neovascularization (CNV). Tissue plasminogen activator (tPA), a fibrinolytic compound, is used as an adjuvant to displace submacular hemorrhage and to treat type 2 CNV. The purpose of this study was to investigate in in vitro and in vivo experiments the antiangiogenic impact of tPA itself. METHODS: The impact of tPA on the proliferation of human umbilical vein endothelial cells (HUVECs) was assessed by an XTT assay [2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide]. A basic fibroblast growth factor-impregnated gelatin hydrogel sheet was implanted into the rabbit cornea to induce corneal neovascularization. Immediately postoperatively, tPA or buffered saline solution (control) was injected intravitreally. RESULTS: The growth and viability of the HUVECs were unaffected by tPA at clinical concentrations. In the control group, the mean lengths of the new vessels were 1.0 ± 0.41, 1.6 ± 0.75, and 3.6 ± 2.1 mm at weeks 1, 2, and 4, respectively. In contrast, tPA significantly (p < 0.01) reduced the corneal neovascularization. CONCLUSION: Although tPA has no direct impact on the vascular endothelial cells in vitro, the fibrinolytic effects of tPA might markedly suppress neovascularization in vivo.


Asunto(s)
Córnea/irrigación sanguínea , Neovascularización de la Córnea/tratamiento farmacológico , Activador de Tejido Plasminógeno/administración & dosificación , Animales , Recuento de Células , Células Cultivadas , Córnea/efectos de los fármacos , Córnea/patología , Neovascularización de la Córnea/patología , Modelos Animales de Enfermedad , Fibrinolíticos/administración & dosificación , Células Endoteliales de la Vena Umbilical Humana/efectos de los fármacos , Células Endoteliales de la Vena Umbilical Humana/patología , Humanos , Conejos
12.
Ophthalmologica ; 237(3): 159-166, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28171877

RESUMEN

PURPOSE: To investigate functional and morphological changes in patients with chronic central serous chorioretinopathy after supplementation with antioxidants containing lutein or a placebo. PROCEDURES: One hundred eyes of 100 patients were randomly divided into 2 groups, one taking tablets with lutein plus other antioxidants and the other taking a placebo for 6 months. Best-corrected visual acuity (BCVA) and the subfoveal fluid height on optical coherence tomography were measured. RESULTS: Seventy-nine patients (37 in the supplementation and 42 in the placebo group) completed the 6-month follow-up. In the supplementation group, mean BCVA showed significant improvement (p = 0.003), while there was no significant change in the placebo group (p = 0.589). The mean subfoveal fluid height was significantly reduced, by 28.6%, in the supplementation group (p = 0.028), in contrast to 3.3% in the placebo group (p = 0.898). CONCLUSIONS: Antioxidant supplementation significantly reduced subfoveal fluid height. The impacts of antioxidant supplementation on BCVA remain to be elucidated in future studies.


Asunto(s)
Coriorretinopatía Serosa Central/dietoterapia , Suplementos Dietéticos , Luteína/administración & dosificación , Agudeza Visual , Adulto , Anciano , Antioxidantes/administración & dosificación , Coriorretinopatía Serosa Central/diagnóstico , Enfermedad Crónica , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tomografía de Coherencia Óptica , Resultado del Tratamiento
13.
Retina ; 35(11): 2377-83, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-26457396

RESUMEN

PURPOSE: To evaluate the area of the foveal avascular zone (FAZ) detected by en face OCTA (AngioVue, Avanti OCT; Optovue) in healthy and diabetic eyes. METHODS: Retrospective chart review of patients who underwent fundus examination including en face OCTA. Eyes with proliferative diabetic retinopathy and history of laser photocoagulation were excluded. The FAZ area in the superficial and deep plexus layers were measured and evaluated using ImageJ software. RESULTS: The FAZ area in the superficial layer was 0.25 ± 0.06 mm² in healthy eyes (n = 19), whereas it was 0.37 ± 0.07 mm² in diabetic eyes without retinopathy (n = 24) and 0.38 ± 0.11 mm² in eyes with diabetic retinopathy (n = 20). Diabetic eyes showed statistically significant FAZ enlargement compared with healthy eyes, regardless of the presence of retinopathy (P < 0.01). The FAZ area in the deep plexus layer was also significantly larger in diabetic eyes than in healthy eyes (P < 0.01). CONCLUSION: Our data suggest that diabetic eyes show retinal microcirculation impairment in the macula even before retinopathy develops. En face OCTA is a useful noninvasive screening tool for detecting early microcirculatory disturbance in patients with diabetes.


Asunto(s)
Retinopatía Diabética/diagnóstico , Angiografía con Fluoresceína , Fóvea Central/irrigación sanguínea , Isquemia/diagnóstico , Vasos Retinianos/patología , Tomografía de Coherencia Óptica , Adulto , Anciano , Anciano de 80 o más Años , Velocidad del Flujo Sanguíneo , Retinopatía Diabética/fisiopatología , Femenino , Humanos , Isquemia/fisiopatología , Masculino , Microcirculación , Persona de Mediana Edad , Flujo Sanguíneo Regional , Estudios Retrospectivos , Agudeza Visual
14.
Ophthalmologica ; 234(3): 139-50, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26393771

RESUMEN

PURPOSE: To evaluate the usefulness of indocyanine green angiography (ICGA) to detect leaking spots and the effectiveness of ICGA-guided focal laser photocoagulation in eyes with diabetic macular edema (DME). METHODS: Ten eyes (8 patients) with diffuse DME diagnosed using fluorescein angiography (FA) and refractory to a sub-Tenon injection of triamcinolone acetonide (STTA), grid laser photocoagulation, or both were enrolled. FA and ICGA were performed using the Heidelberg Retina Angiograph 2. Hyperfluorescent spots on early-phase FA and on early- and late-phase ICGA were superimposed onto the macular thickness map measured by optical coherence tomography (OCT) and counted to calculate the spot density in the area with or without macular edema (ME). ICGA-guided focal laser photocoagulation was carried out. In 7 eyes, STTA was simultaneously performed. The central macular thickness (CRT) and macular volume (MV) were measured by OCT. RESULTS: On early-phase FA, 4.8 ± 2.3 and 2.3 ± 1.5 hyperfluorescent spots/disk area were observed inside and outside the ME, respectively. In contrast, the spot density was significantly decreased to 1.8 ± 0.9 inside the ME and was only 0.3 ± 0.4 outside the ME on late-phase ICGA (p < 0.01). The mean follow-up period after ICGA-guided photocoagulation was 19.0 months. The mean best-corrected visual acuity improved significantly from 0.77 ± 0.34 logarithm of the minimum angle of resolution at baseline to 0.52 ± 0.37 at the last visit (p < 0.01). Both CRT and MV significantly decreased (p < 0.01). Recurrence of DME was observed in 4 eyes: 3 eyes were treatable only with STTA and 1 required additional ICGA-guided laser photocoagulation. CONCLUSIONS: ICGA may be useful to detect leaking spots responsible for DME, enabling less invasive focal laser photocoagulation even in some of the eyes with diffuse DME.


Asunto(s)
Colorantes/administración & dosificación , Retinopatía Diabética/cirugía , Angiografía con Fluoresceína , Verde de Indocianina/administración & dosificación , Coagulación con Láser , Edema Macular/cirugía , Cirugía Asistida por Computador , Anciano , Anciano de 80 o más Años , Barrera Hematorretinal , Permeabilidad Capilar , Retinopatía Diabética/diagnóstico , Femenino , Humanos , Edema Macular/diagnóstico , Masculino , Persona de Mediana Edad , Oftalmoscopía , Estudios Retrospectivos , Agudeza Visual/fisiología
15.
Ophthalmologica ; 233(1): 27-34, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25412682

RESUMEN

PURPOSE: To report the 1-year results of intravitreal ranibizumab (IVR) injections for neovascular age-related macular degeneration (nAMD) in patients with good baseline visual acuity (VA). METHODS: Thirty-six eyes of 36 patients with nAMD with best-corrected VAs (BCVAs) >0.6 (equal to 0.22 in the logarithm of the minimum angle of resolution unit) were enrolled. IVR was the primary treatment; additional treatment was administered as needed. BCVAs and central retinal thickness (CRT) were measured periodically. RESULTS: The mean number of injections at month 12 was 3.3. The mean BCVAs were 0.11 ± 0.02 at baseline and 0.12 ± 0.03 at month 12, which did not significantly differ. The mean CRT significantly improved from 320 ± 15 to 254 ± 12 µm at month 12 (p < 0.01). Photodynamic therapy was applied in 2 cases because of frequent recurrences. CONCLUSIONS: IVR maintained VA and improved morphological changes in wet AMD with good baseline VA.


Asunto(s)
Inhibidores de la Angiogénesis/uso terapéutico , Anticuerpos Monoclonales Humanizados/uso terapéutico , Agudeza Visual/fisiología , Degeneración Macular Húmeda/tratamiento farmacológico , Anciano , Anciano de 80 o más Años , Femenino , Angiografía con Fluoresceína , Humanos , Inyecciones Intravítreas , Masculino , Persona de Mediana Edad , Ranibizumab , Retina/patología , Tomografía de Coherencia Óptica , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Degeneración Macular Húmeda/diagnóstico , Degeneración Macular Húmeda/fisiopatología
16.
Int J Mol Sci ; 16(5): 9420-30, 2015 Apr 27.
Artículo en Inglés | MEDLINE | ID: mdl-25923075

RESUMEN

Excessive accumulation of nickel (Ni) can be toxic to plants. In Arabidopsis thaliana, the Fe²âº transporter, iron (Fe)-regulated transporter1 (IRT1), mediates Fe uptake and also implicates in Ni²âº uptake at roots; however, the underlying mechanism of Ni²âº uptake and accumulation remains unelucidated. In the present study, we found that zinc (Zn) deficient conditions resulted in increased accumulation of Ni in plants, particularly in roots, in A. thaliana. In order to elucidate the underlying mechanisms of Ni uptake correlating zinc condition, we traced 63Ni isotope in response to Zn and found that (i) Zn deficiency induces short-term Ni²âº absorption and (ii) Zn²âº inhibits Ni²âº uptake, suggesting competitive uptake between Ni and Zn. Furthermore, the Zrt/Irt-like protein 3 (ZIP3)-defective mutant with an elevated Zn-deficient response exhibited higher Ni accumulation than the wild type, further supporting that the response to Zn deficiency induces Ni accumulation. Previously, expression profile study demonstrated that IRT1 expression is not inducible by Zn deficiency. In the present study, we found increased Ni accumulation in IRT1-null mutant under Zn deficiency in agar culture. These suggest that Zn deficiency induces Ni accumulation in an IRT1-independen manner. The present study revealed that Ni accumulation is inducible in response to Zn deficiency, which may be attributable to a Zn uptake transporter induced by Zn deficiency.


Asunto(s)
Proteínas de Arabidopsis/metabolismo , Arabidopsis/fisiología , Proteínas de Transporte de Catión/metabolismo , Níquel/metabolismo , Zinc/deficiencia , Zinc/fisiología , Agar , Proteínas de Arabidopsis/genética , Transporte Biológico , Proteínas de Transporte de Catión/genética , Perfilación de la Expresión Génica , Regulación de la Expresión Génica de las Plantas , Hidroponía , Hierro/química , Mutación , Raíces de Plantas/metabolismo
17.
Nippon Ganka Gakkai Zasshi ; 118(6): 495-501, 2014 Jun.
Artículo en Japonés | MEDLINE | ID: mdl-25016791

RESUMEN

PURPOSE: To investigate the causes of visual impairment in Japan. METHODS: The documents of 4,852 individuals with authorization of visual impairment registered between April 2007 and March 2010 in 7 randomly selected regions were reviewed. RESULTS: The major causes of visual impairment were glaucoma (21.0%), diabetic retinopathy (15.6%), retinitis pigmentosa (12.0%), macular degeneration (9.5%) and chorioretinal atrophy (8.4%). Individuals over 70 years of age were predominant for glaucoma, those aged 50-69 years for diabetic retinopathy and those under 40 years of age for retinitis pigmentosa. Sixty-one percent of persons affected by glaucoma were severely handicapped. Macular degeneration increased with age especially in individuals over 80 years of age. CONCLUSION: There was no difference in the order of major causes as compared with a previous report in 2001-2004. It is important to establish a central database system so that the data can be surveyed to provide more relevant information to understand current issues for handicapped persons and develop new prophylactic and therapeutic modalities.


Asunto(s)
Trastornos de la Visión/epidemiología , Trastornos de la Visión/etiología , Anciano , Anciano de 80 o más Años , Distrofias Hereditarias de la Córnea/complicaciones , Retinopatía Diabética/complicaciones , Femenino , Glaucoma/complicaciones , Humanos , Japón/epidemiología , Degeneración Macular/complicaciones , Masculino , Persona de Mediana Edad , Retinitis Pigmentosa/complicaciones
18.
PhytoKeys ; 241: 169-176, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38715683

RESUMEN

While reliance on morphology has been at the expense of clearly distinguishing gracilarioid species, molecular data have proven to be more reliable in discriminating between taxa. Gracilariaphuquocensis was originally described, based on materials collected from Vietnam. Since it was described in 2020, there have been no further reports of this species. Meanwhile, a question has been raised as to whether the identity of a rhodophyte gracilarioid alga collected from the Philippines that has been referred to as an unidentified species of Gracilaria, could be G.phuquocensis. Based on comparative morpho-anatomical features and a molecular phylogeny based on rbcL gene sequences, establishing the identity of the Philippine material has led to the finding of the new record of G.phuquocensis outside its type locality. In addition to the discovery of G.phuquocensis in the Philippines, the species here is also identified as a newly-reported host for the adelphoparasite resembling Gracilariababae.

19.
J Clin Med ; 13(8)2024 Apr 21.
Artículo en Inglés | MEDLINE | ID: mdl-38673690

RESUMEN

Background: Subretinal hyper-reflective material (SHRM) sometimes causes vision loss in spite of anti-vascular endothelial growth factor (VEGF) therapy in eyes with neovascular age-related macular degeneration (nvAMD). We evaluated the impacts of combination therapy with intravitreal ranibizumab (IVR) and tissue plasminogen activator (tPA) in eyes with nvAMD accompanying SHRM. Methods: In total, 25 eyes of 25 patients (16 men and 9 women, 76.7 years old), who underwent IVR/tPA for nvAMD with SHRM and were followed up for at least 12 months, were retrospectively reviewed. In total, 15 eyes were treatment-naïve and 10 eyes had previous treatment for nvAMD. Results: In total, 16 eyes had type 2 macular neovascularization (MNV), 5 eyes type 1 MNV with fibrovascular pigment epithelial detachment and 4 eyes polypoidal choroidal vasculopathy. At month 12, SHRM regressed or reduced in 18 eyes (72%) and the best-corrected visual acuity (BCVA) improved in 6 eyes (24%) and was unchanged in 14 eyes (56%), while the mean BCVA was just stabilized. The mean central retinal thickness, macular volume and SHRM thickness significantly improved from 408 µm to 287 µm, from 11.9 mm3 to 9.6 mm3, from 369 µm to 165 µm, respectively (p < 0.01). Conclusions: The combination therapy with IVR/tPA for nvAMD with SHRM may help preserve vision by prompt regression of SHRM.

20.
J Neurogastroenterol Motil ; 30(2): 229-235, 2024 Apr 30.
Artículo en Inglés | MEDLINE | ID: mdl-38576372

RESUMEN

Background/Aims: Although certain allergic diseases have been reported to be associated with the prevalence of functional dyspepsia (FD) and irritable bowel syndrome (IBS), it is unclear whether the presence of multiple allergic diseases further increases the prevalence of FD and IBS. The aim of this study is to determine this issue in young people. Methods: A cohort of 8923 Japanese university students was enrolled and diagnoses of FD and IBS were confirmed using Rome III criteria. Allergic disorders diagnosed at medical institutions were obtained by means of a self-administered questionnaire. Results: The prevalence of FD, IBS, and their overlap was found to be 1.9%, 6.5%, and 1.1%, respectively. Pollen allergy was independently positively correlated with FD, IBS, and overlap of FD and IBS. Allergic rhinitis was positively linked to IBS. Drug allergy was positively associated with FD. The presence of multiple allergic diseases was positively correlated with FD and IBS (FD: adjusted OR for 2 allergic diseases: 1.95 [95% CI, 1.24-2.98], P for trend = 0.003; and IBS: adjusted OR for 1 allergic disease: 1.40 [95% CI, 1.15-1.69], 2 allergic diseases 1.47 [95% CI, 1.12-1.91], and 3 or more allergic diseases: 2.22 [95% CI, 1.45-3.28], P for trend = 0.001). Additionally, the concomitant existence of multiple allergic diseases was also demonstrated to have a trend that correlated with the overlap of FD and IBS (P for trend = 0.018). Conclusion: Allergic disease multimorbidity is positively correlated with the prevalence of FD and IBS in a young population.

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