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1.
Front Plant Sci ; 15: 1259720, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38545394

RESUMEN

Plant phytochromes, renowned phosphoproteins, are red and far-red photoreceptors that regulate growth and development in response to light signals. Studies on phytochrome phosphorylation postulate that the N-terminal extension (NTE) and hinge region between N- and C-domains are sites of phosphorylation. Further studies have demonstrated that phosphorylation in the hinge region is important for regulating protein-protein interactions with downstream signaling partners, and phosphorylation in the NTE partakes in controlling phytochrome activity for signal attenuation and nuclear import. Moreover, phytochrome-associated protein phosphatases have been reported, indicating a role of reversible phosphorylation in phytochrome regulation. Furthermore, phytochromes exhibit serine/threonine kinase activity with autophosphorylation, and studies on phytochrome mutants with impaired or increased kinase activity corroborate that they are functional protein kinases in plants. In addition to the autophosphorylation, phytochromes negatively regulate PHYTOCHROME-INTERACTING FACTORs (PIFs) in a light-dependent manner by phosphorylating them as kinase substrates. Very recently, a few protein kinases have also been reported to phosphorylate phytochromes, suggesting new views on the regulation of phytochrome via phosphorylation. Using these recent advances, this review details phytochrome regulation through phosphorylation and highlights their significance as protein kinases in plant light signaling.

2.
Biomed Pharmacother ; 172: 116281, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38364736

RESUMEN

Progesterone (P4) is a crucial reproductive hormone that acts as a precursor for all other endogenous steroids. P4 modulates transcriptional activity during reproduction by binding to progesterone receptors (PR). However, the physiological role of P4 in the liver is understudied. P4-mediated lipid metabolism in the liver was investigated in this study, as P4 facilitates insulin resistance and influences energy metabolism. While exogenous lipids are mainly obtained from food, the liver synthesizes endogenous triglycerides and cholesterol from a carbohydrate diet. Hepatic de novo lipogenesis (DNL) is primarily determined by acetyl-CoA and its biosynthetic pathways, which involve fatty acid and cholesterol synthesis. While P4 increased the hepatic levels of sterol regulatory element-binding protein 1 C (SREBP-1 C), peroxisome proliferator-activated receptor-gamma (PPARγ), acetyl-CoA carboxylase (ACC), and CD36, co-treatment with the P4 receptor antagonist RU486 blocked these proteins and P4-mediated lipogenesis. RNA sequencing was used to assess the role of P4 in lipogenic events, such as fatty liver and fatty acid metabolism, lipoprotein signaling, and cholesterol metabolism. P4 induced hepatic DNL and lipid anabolism were confirmed in the liver of ovarian resection mice fed a high-fat diet or in pregnant mice. P4 increased lipogenesis directly in mice exposed to P4 and indirectly in fetuses exposed to maternal P4. The lipid balance between lipogenesis and lipolysis determines fat build-up and is linked to lipid metabolism dysfunction, which involves the breakdown and storage of fats for energy and the synthesis of structural and functional lipids. Therefore, P4 may impact the lipid metabolism and reproductive development during gestation.


Asunto(s)
Lipogénesis , Progesterona , Femenino , Embarazo , Animales , Ratones , Progesterona/farmacología , Hígado , Colesterol , Ácidos Grasos , Lípidos
3.
Sci Rep ; 13(1): 19040, 2023 11 03.
Artículo en Inglés | MEDLINE | ID: mdl-37923751

RESUMEN

Invasive species and climate change are primary factors influencing biodiversity, and examining the behavior of invasive species is essential for effective conservation management. Here, we report the global distribution of the sika deer (Cervus nippon) based on locations reported in published literature (Google Scholar), the Global Biodiversity Information Facility (GBIF) database, and the International Union for Conservation of Nature report. We used the maximum entropy (Maxent) model to examine the impact of climate change on sika deer habitats in South Korea based on GBIF occurrence data and WorldClim bioclimatic variables. Habitat suitability analysis was performed using the Maxent model under Representative Concentration Pathways (RCPs) 4.5 and 8.5 (for predicted climatic conditions in both 2050 and 2070) to project the effects of different climate change scenarios on South Korean sika deer habitats. We identified that the sika deer is distributed in 39 countries worldwide. Due to climate change effects, South Korean sika deer habitats will decline by approximately 24.98% and 20.63% (under RCP 4.5) and by 50.51% and 57.35% (under RCP 8.5) by 2050 and 2070, respectively. Our findings shed light on sika deer ecology and provide reference data for future conservation management strategies and policy design.


Asunto(s)
Ciervos , Animales , Biodiversidad , República de Corea
4.
Int J Mol Sci ; 24(11)2023 Jun 02.
Artículo en Inglés | MEDLINE | ID: mdl-37298619

RESUMEN

Acne is a common skin condition caused by the growth of certain bacteria. Many plant extracts have been investigated for their potential to combat acne-inducing microbes, and one such plant extract is microwave-assisted Opuntia humifusa extract (MA-OHE). The MA-OHE was loaded onto zinc-aminoclay (ZnAC) and encapsulated in a Pickering emulsion system (MA-OHE/ZnAC PE) to evaluate its therapeutic potential against acne-inducing microbes. Dynamic light scattering and scanning electron microscopy were used to characterize MA-OHE/ZnAC PE with a mean particle diameter of 353.97 nm and a PDI of 0.629. The antimicrobial effect of MA-OHE/ZnAC was evaluated against Staphylococcus aureus (S. aureus) and Cutibacterium acnes (C. acnes), which contribute to acne inflammation. The antibacterial activity of MA-OHE/ZnAC was 0.1 and 0.025 mg/mL to S. aureus and C. acnes, respectively, which were close to naturally derived antibiotics. Additionally, the cytotoxicity of MA-OHE, ZnAC, and MA-OHE/ZnAC was tested, and the results showed that they had no cytotoxic effects on cultured human keratinocytes in a range of 10-100 µg/mL. Thus, MA-OHE/ZnAC is suggested to be a promising antimicrobial agent for treating acne-inducing microbes, while MA-OHE/ZnAC PE is a potentially advantageous dermal delivery system.


Asunto(s)
Acné Vulgar , Staphylococcus aureus , Humanos , Emulsiones/uso terapéutico , Zinc/farmacología , Zinc/uso terapéutico , Acné Vulgar/tratamiento farmacológico , Acné Vulgar/microbiología , Queratinocitos , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Extractos Vegetales/farmacología , Extractos Vegetales/uso terapéutico , Propionibacterium acnes
5.
Int J Mol Sci ; 24(3)2023 Jan 20.
Artículo en Inglés | MEDLINE | ID: mdl-36768431

RESUMEN

Extensive research has been conducted for decades to elucidate the molecular and regulatory mechanisms for phytochrome-mediated light signaling in plants. As a result, tens of downstream signaling components that physically interact with phytochromes are identified, among which negative transcription factors for photomorphogenesis, PHYTOCHROME-INTERACTING FACTORs (PIFs), are well known to be regulated by phytochromes. In addition, phytochromes are also shown to inactivate an important E3 ligase complex consisting of CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1) and SUPPRESSORs OF phyA-105 (SPAs). This inactivation induces the accumulation of positive transcription factors for plant photomorphogenesis, such as ELONGATED HYPOCOTYL 5 (HY5). Although many downstream components of phytochrome signaling have been studied thus far, it is not fully elucidated which intrinsic activity of phytochromes is necessary for the regulation of these components. It should be noted that phytochromes are autophosphorylating protein kinases. Recently, the protein kinase activity of phytochrome A (phyA) has shown to be important for its function in plant light signaling using Avena sativa phyA mutants with reduced or increased kinase activity. In this review, we highlight the function of phyA as a protein kinase to explain the regulation of plant photoresponses by phyA.


Asunto(s)
Proteínas de Arabidopsis , Arabidopsis , Fitocromo , Fitocromo A/genética , Fitocromo A/metabolismo , Proteínas de Arabidopsis/metabolismo , Arabidopsis/metabolismo , Fitocromo/genética , Fitocromo/metabolismo , Plantas/genética , Plantas/metabolismo , Proteínas Quinasas/metabolismo , Factores de Transcripción/metabolismo , Luz , Regulación de la Expresión Génica de las Plantas
6.
Adv Mater ; 35(1): e2207320, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36271732

RESUMEN

Chemical doping can be used to tune the optoelectronic properties of conjugated polymers (CPs), extending their applications as conducting materials. Unfortunately, chemically doped CP films containing excess dopants exhibit an increase in energetic disorder upon structural alteration, and Coulomb interactions between charge carriers and dopants also affect such disorder. The increase in energetic disorder leads to a broadening of the density of states, which consequently impedes efficient charge transport in chemically doped CPs. However, the molecular origins that are inherently resistant to such incidental increase of energetic disorder in chemically doped CPs have not been sufficiently explored. Here, it is discovered that energetic disorder in chemically doped CPs can be suppressed to a level close to the theoretical limit. Indacenodithiophene-co-benzothiadiazole (IDTBT) doped with triethyloxonium hexachloroantimonate (OA) exhibits disorder-free charge-transport characteristics and band-like transport behavior with astonishing carrier mobility as a result of reinforced 1D intramolecular transport. Molecular structure of IDTBT provides a capability to lower the energetic disorder that generally arises from the inclusion of heterogeneous dopants. The results suggest the possibilities of implementing disorder-free CPs that exhibit excellent charge transport characteristics in the chemically doped state and satisfy a prerequisite for their availability in the industry.

7.
Clin Nutr Res ; 11(3): 153-158, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35949562

RESUMEN

Critically ill trauma patients generally show good nutritional status upon initial hospitalization. However, they have a high risk of malnutrition due to hyper-metabolism during the acute phase. Hence, suitable nutritional support is essential for the optimal recovery of these patients; therefore, outcomes such as preservation of fat-free mass, maintenance of immune functions, reduction in infectious complications, and prevention of malnutrition can be expected. In this report, we present the experience of a patient subjected to 40 days of nutritional interventions during postoperative intensive care unit (ICU) care. Although the patient was no malnutrition at ICU admission, enteral nutrition (EN) was delayed for > 2 weeks because of several postoperative complications. Subsequently, while receiving parenteral nutrition (PN), the patient displayed persistent hypertriglyceridemia. As a result, his prescription of PN were converted to lipid-free PN. On postoperative day (POD) #19, the patient underwent jejunostomy and started standard EN. A week later, the patient was switched to a high-protein, immune-modulating formula for postoperative wound recovery. Thereafter, PN was stopped, while EN was increased. In addition, because of defecation issues, a fiber-containing formula was administered with previous formula alternately. Despite continuous nutritional intervention, the patient experienced a significant weight loss and muscle mass depletion and was diagnosed with severe malnutrition upon discharge from the ICU. To conclude, this case report highlights the importance of nutrition interventions in critically ill trauma patients with an increased risk of malnutrition, indicating the need to promptly secure an appropriate route of feeding access for active nutritional support of patients in the ICU.

8.
Antioxidants (Basel) ; 11(5)2022 May 19.
Artículo en Inglés | MEDLINE | ID: mdl-35624862

RESUMEN

Recently, utilizing natural bioactive compounds for active ingredients in cosmetics has become a growing worldwide trend. More and more studies aim to identify the sources of herbal ingredients for applications in the pharmaceutical and cosmetic fields. Additionally, in order to optimize the safety of natural ingredients, choosing an environmentally friendly extraction method also plays an important role. In this work, an eco-friendly extraction technique for Dendropanax morbifera using microwave treatment and microwave-assisted Dendropanax morbifera extract (MA-DME) was investigated. The results indicate that higher yields of MA-DME were obtained than with conventional methods and that D. morbifera's antioxidant properties were enhanced. Moreover, we found that MA-DME exhibited extraordinary antioxidant, anti-aging, and skin-whitening activities. We suggest MA-DME as a potential cosmeceutical ingredient than could be utilized for comprehensive protection of human skin.

9.
Int J Mol Sci ; 23(7)2022 Mar 26.
Artículo en Inglés | MEDLINE | ID: mdl-35409001

RESUMEN

Several plant-based nanoscale-encapsulated antioxidant compounds (rutin, myricetin, ß-carotene, fisetin, lycopene, quercetin, genkwanin, lutein, resveratrol, eucalyptol, kaempferol, glabridin, pinene, and whole-plant bio-active compounds) are briefly introduced in this paper, along with their characteristics. Antioxidants' bioavailability has become one of the main research topics in bio-nanomedicine. Two low patient compliance drug delivery pathways (namely, the oral and topical delivery routes), are described in detail in this paper, for nanoscale colloidal systems and gel formulations. Both routes and/or formulations seek to improve bioavailability and maximize the drug agents' efficiency. Some well-known compounds have been robustly studied, but many remain elusive. The objective of this review is to discuss recent studies and advantages of nanoscale formulations of plant-derived antioxidant compounds.


Asunto(s)
Antioxidantes , Quercetina , Disponibilidad Biológica , Humanos , Plantas , Resveratrol , Rutina
10.
J Foot Ankle Surg ; 61(5): 957-963, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35016831

RESUMEN

While the effectiveness of suture-tape augmentation for chronic ankle instability has been supported biomechanically and clinically, little information is available regarding biological changes of the lateral ligaments postoperatively. This study aims to quantitatively evaluate ligament regeneration with MRI after suture-tape augmentation. Forty-six patients underwent MRI scan at follow-up of a minimum of 1 year after lateral ligaments augmentation using suture-tape. The signal-to-noise ratio (SNR) and width of anterior talofibular ligament (ATFL) were measured on preoperative and postoperative MRI by 3 researchers. The degree of biological healing of ATFL was analyzed based on the change of SNR and comparison with normal contralateral ankle. Clinical outcomes were evaluated with the Foot and Ankle Outcome Score, Foot and Ankle Ability Measure. Mean Foot and Ankle Outcome Score and Foot and Ankle Ability Measure scores improved significantly from 63.1 to 92.7, and 59.6 to 91.5 points at final follow-up, respectively (p < .001). Mean SNR and width of ATFL were changed insignificantly from 8.24 to 7.96, and 1.88 mm to 2.05 mm at final follow-up, respectively (p = .391, .509). As compared to contralateral side, there were significant differences in both mean SNR and width of the ATFL, respectively (p < .001, p = .0012). Spearman's correlation analysis revealed no significant association between clinical outcomes and degree of biological healing of ATFL based on MRI. Despite significant improvement in patient-reported clinical outcomes, the influence on ligament regeneration of suture-tape augmentation for chronic ankle instability was insignificant. In addition, there was no significant correlation between clinical outcomes and degree of biological healing of the ATFL.


Asunto(s)
Inestabilidad de la Articulación , Ligamentos Laterales del Tobillo , Tobillo , Articulación del Tobillo/diagnóstico por imagen , Articulación del Tobillo/cirugía , Humanos , Inestabilidad de la Articulación/diagnóstico por imagen , Inestabilidad de la Articulación/cirugía , Ligamentos Laterales del Tobillo/diagnóstico por imagen , Ligamentos Laterales del Tobillo/cirugía , Imagen por Resonancia Magnética , Suturas
11.
J Foot Ankle Surg ; 61(3): 577-582, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34887162

RESUMEN

Residual functional ankle instability regardless of the restoration of mechanical stability after the lateral ligament repair or reconstruction can cause recurrent sprain. The purpose of this study was to identify the sequential changes of joint-position sense, peroneal strength, postural control, and functional performance ability after the modified Broström procedure (MBP) for chronic ankle instability. A total of 46 patients (46 ankles) underwent the MBP for chronic ankle instability were eligible for this study and were followed for 1 year postoperatively. The changes of joint-position sense and peroneal strength were periodically evaluated with an isokinetic dynamometer. Postural control ability was evaluated using a one-leg stance test with eyes closed. The functional performance ability examination comprised a one-leg hop test, a 6-meter hop test, and a cross 3-meter hop test. The error in joint-position sense significantly improved from a mean 4.3º to 2.8º (p < .001). Peak torque for eversion significantly improved from a mean 18.2 Nm to 21.2 Nm (p = .024). Balance retention time significantly improved from a mean 4.7 seconds to 6.4 seconds (p < .001). Among the functional performance tests, only the one-leg hop test showed a significant improvement postoperatively (p = .031). At 1 year postoperatively, the recovery ratios compared to the unaffected ankle were 67.9% in joint-position sense (p < .001), 86.9% in peroneal strength (p = .012), and 74.4% in postural control (p < .001) with significant side-to-side differences. Although joint-position sense, peroneal strength, postural control, and functional performance ability were significantly improved after the MBP, recovery ratios compared to the unaffected ankle were insufficient up to 1 year postoperatively.


Asunto(s)
Inestabilidad de la Articulación , Ligamentos Laterales del Tobillo , Tobillo , Articulación del Tobillo/cirugía , Humanos , Inestabilidad de la Articulación/etiología , Ligamentos Laterales del Tobillo/cirugía , Fuerza Muscular
12.
Adv Mater ; 33(38): e2102797, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34331341

RESUMEN

Organometal halide perovskites (OHPs) exhibit superior charge transport characteristics and ultralow thermal conductivities. However, thermoelectric (TE) applications of OHPs have been limited because of difficulties in controlling their carrier concentration, which is a key to optimizing their TE properties. Here, facile control of the carrier concentration in Sn-based OHPs is achieved by developing 2D crystal structures. The 2D OHP crystals are laterally oriented using a mixed solvent, and the morphology and crystal structure of the coexisting 2D/3D hybrid structures are systematically controlled via doping with methylammonium chloride. The effective number neff of inorganic octahedron layers in the 2D OHPs shows a strong positive correlation with the carrier concentration. Moreover, the 2D structure induces the quantum confinement effect, which enhances both the Seebeck coefficient and the electrical conductivity. A 2D OHP shows a high power factor of 111 µW m-1 K-2 , which is an order of magnitude greater than the power factor of its 3D counterpart.

13.
Psychooncology ; 30(3): 340-348, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33103298

RESUMEN

OBJECTIVE: Although there is enthusiasm for identifying and treating psychosocial problems in childhood cancer patients, there are few validated instruments to help providers identify at-risk children for further assessment. The study objective was to evaluate the sensitivity and specificity of the self-report pediatric Distress Thermometer Rating Scale (Peds DTRS) in childhood cancer survivors and identify a threshold score to help providers classify pediatric patients. METHODS: We evaluated 54 children 7-17 years old using 178 Peds DTRS longitudinal data points from the cohort that was used for the original pediatric adaptation of the DTRS. We compared Peds DTRS scores against two established standardized measures using a generalized linear mixed model to deal with the dependency in the longitudinal data to estimate ROC curves and related statistics. RESULTS: Results indicate that a score of 3 is a reasonable cutoff to identify distress with children 7-17 years old. This cutoff yielded high sensitivity (87.0%) and specificity (79.7%) using the PedsQL Emotional Domain score as the standard. Similar results were obtained using the CDI as the standard, but we are cautious as very few CDI scores reached the cutoff criterion. Exploratory analysis highlighted clinical factors that correlate with increased distress measured using the Peds DTRS. CONCLUSIONS: The Peds DTRS is a very brief, convenient, and rapid screening tool for global distress in children. Further investigation of the Peds DTRS and other tools can improve the ability of providers to prevent and treat the negative emotional consequences of cancer and improve the quality of survivorship.


Asunto(s)
Supervivientes de Cáncer/psicología , Depresión/psicología , Neoplasias/psicología , Estrés Psicológico/psicología , Encuestas y Cuestionarios/normas , Adolescente , Adulto , Niño , Estudios de Cohortes , Humanos , Masculino , Tamizaje Masivo , Persona de Mediana Edad , Padres , Apoderado , Psicometría/métodos , Calidad de Vida , Curva ROC , Autoinforme , Sensibilidad y Especificidad , Termómetros , Escala Visual Analógica
14.
Neuropsychology ; 34(6): 713-725, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32614198

RESUMEN

OBJECTIVE: To explore the neuropsychological sequelae of blast-induced mild traumatic brain injury (mTBI) and posttraumatic stress disorder (PTSD), several neuropsychological tests and self-reported measures of cognitive and emotional functioning were administered to 138 Operation Iraqi Freedom (OIF)/Operation Enduring Freedom (OEF) veterans. We hypothesized that veterans affected by mTBI and PTSD would manifest differences in neuropsychological testing and self-report measures compared to a group of healthy veteran controls and to veterans with only PTSD. METHOD: Participants included 3 groups of veterans: (a) healthy controls (n = 43); (b) PTSD only (n = 48); and (c) comorbid blast-induced mTBI and PTSD (n = 47). An exploratory factor analysis (EFA) was used to extract a smaller number of latent dimensions for group comparison. RESULTS: The EFA supported an 8-factor model. A multivariate analysis of variance on the 8 factor scores demonstrated 3 significant factor mean differences: (a) perceived cognitive complications (PCC), (b) perceived emotional distress (PED), and (c) processing speed (PS). Post hoc analyses showed significant group mean difference in PS between the comorbid and the control groups. In addition, the comorbid group presented with the highest levels of PCC and PED. CONCLUSIONS: Results suggest that among OIF/OEF veterans with blast-induced mTBI, PTSD with its accompanying emotional distress may be a significant determinant of subjective sense of well-being both cognitively and emotionally. The objective discrepancy in PS between the comorbid group and the healthy controls also appears largely due to PTSD more so than the remote blast-induced mTBI, as the group mean difference in PS became negligible after controlling for PTSD levels. (PsycInfo Database Record (c) 2020 APA, all rights reserved).


Asunto(s)
Traumatismos por Explosión/psicología , Conmoción Encefálica/psicología , Trastornos por Estrés Postraumático/psicología , Veteranos , Adulto , Campaña Afgana 2001- , Traumatismos por Explosión/complicaciones , Conmoción Encefálica/complicaciones , Trastornos del Conocimiento/etiología , Trastornos del Conocimiento/psicología , Análisis Factorial , Femenino , Humanos , Guerra de Irak 2003-2011 , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Distrés Psicológico , Tiempo de Reacción , Factores de Riesgo , Trastornos por Estrés Postraumático/etiología , Adulto Joven
15.
Nutrients ; 11(5)2019 May 22.
Artículo en Inglés | MEDLINE | ID: mdl-31121926

RESUMEN

Chemotherapy may negatively affect nutritional status and quality of life (QOL) in pancreatic cancer patients. Our aim was to investigate the beneficial effects of oral nutrition supplements (ONS) on pancreatic and bile duct cancer patients undergoing chemotherapy. Among patients with progressive pancreatic and bile duct cancer receiving chemotherapy, the ONS group (n = 15) received two packs of ONS daily for 8 weeks while the non-ONS group (n = 19) did not. Anthropometric measures, dietary intake, nutritional status, and quality of life were assessed. ONS significantly increased daily intakes of energy, carbohydrates, proteins, and lipids at 8 weeks compared to the baseline. After 8 weeks, fat mass significantly increased in the ONS group. For patients in their first cycle of chemotherapy, body weight, fat-free mass, skeletal muscle mass, body cell mass, and fat mass increased in the ONS group but decreased in the non-ONS group. Fat mass increased in second or higher cycle only in the ONS group. Patient-generated subjective global assessments (PG-SGA) and fatigue scores in the Quality of Life Questionnaire Core 30 (QLQ-C30) improved in the ONS group. ONS might improve nutritional status by increasing fat mass and/or maintaining the body composition of pancreatic and bile duct cancer patients with chemotherapy, especially those in the first cycle, and alleviate fatigue symptoms.


Asunto(s)
Neoplasias de los Conductos Biliares/terapia , Suplementos Dietéticos , Terapia Nutricional/métodos , Neoplasias Pancreáticas/terapia , Anciano , Neoplasias de los Conductos Biliares/tratamiento farmacológico , Composición Corporal , Peso Corporal , Dieta , Ingestión de Energía , Femenino , Humanos , Masculino , Estado Nutricional , Neoplasias Pancreáticas/tratamiento farmacológico , Estudios Prospectivos , Calidad de Vida , Encuestas y Cuestionarios
16.
Orthopedics ; 41(4): 237-247, 2018 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-29940054

RESUMEN

Numerous surgical options have been introduced for the treatment of chronic refractory lateral epicondylitis of the elbow, but it remains unclear which option is superior. The clinical outcomes of an open surgery group and an arthroscopic surgery group were evaluated, and the results of the 2 procedures were compared. From among patients with lateral epicondylitis refractory to 6 months of conservative treatment, 68 patients satisfying study criteria were recruited. Open surgery was performed in 34 cases (group 1), and arthroscopic surgery was performed in 34 cases (group 2). Compared with preoperatively, the 2 groups had significantly improved values for grip strength, range of motion, and Disabilities of the Arm, Shoulder and Hand score at 12 months postoperatively. Group 1 had significantly greater improvements in grip strength and visual analog scale pain score compared with group 2 (P=.048 vs P=.006). Group 2 had significantly greater (P=.045) improvement in pronation compared with group 1. Group 2 returned to work sooner than group 1. On the questionnaire regarding satisfaction with surgery 24 months postoperatively, 4 patients (12%) in group 2 reported dissatisfaction compared with no patients in group 1. Open surgery and arthroscopic surgery both yielded good clinical results. Nonetheless, for patients requiring muscle strength or having severe pain at work, open surgery would be more effective. [Orthopedics. 2018; 41(4):237-247.].


Asunto(s)
Artroscopía , Articulación del Codo/cirugía , Codo de Tenista/cirugía , Adulto , Enfermedad Crónica , Tratamiento Conservador , Femenino , Estudios de Seguimiento , Fuerza de la Mano , Humanos , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Satisfacción del Paciente , Pronación , Rango del Movimiento Articular , Encuestas y Cuestionarios , Codo de Tenista/fisiopatología , Codo de Tenista/terapia
17.
Small ; 11(37): 4884-93, 2015 Oct 07.
Artículo en Inglés | MEDLINE | ID: mdl-26136254

RESUMEN

The exploitation of nanoconfined conversion of Au- and Pt-containing binary nanocrystals for developing a controllable synthesis of surfactant-free AuPt nanocrystals with enhanced formic acid oxidation (FAO) activity is reported, which can be stably and evenly immobilized on various support materials to diversify and optimize their electrocatalytic performance. In this study, an atomic layer of Pt(2+) species is discovered to be spontaneously deposited in situ on the Au nanocrystal generated from a reverse-microemulsion solution. The resulting Au/Pt(2+) nanocrystal thermally transforms into a reduced AuPt alloy nanocrystal during the subsequent solid-state conversion process within the SiO2 nanosphere. The alloy nanocrystals can be isolated from SiO2 in a surfactant-free form and then dispersedly loaded on the carbon sphere surface, allowing for the production of a supported electrocatalyst that exhibits much higher FAO activity than commercial Pt/C catalysts. Furthermore, by involving Fe3O4 nanocrystals in the conversion process, the AuPt alloy nanocrystals can be grown on the oxide surface, improving the durability of supported metal catalysts, and then uniformly loaded on a reduced graphene oxide (RGO) layer with high electroconductivity. This produces electrocatalytic AuPt/Fe3O4/RGO nanocomposites whose catalyst-oxide-graphene triple-junction structure provides improved electrocatalytic properties in terms of both activity and durability in catalyzing FAO.

18.
Assessment ; 22(5): 640-9, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25172847

RESUMEN

We investigated the cross-cultural factorial validity of the three Higher-Order (H-O) scales in the Minnesota Multiphasic Personality Inventory-2 Restructured Form (MMPI-2-RF) among a sample of North Korean female refugees (N = 2,732). Given the importance of the H-O scales in the overall structure of the MMPI-2-RF scales and in interpretation, we were interested in exploring their cross-cultural validity. We conducted an exploratory factor analysis (EFA) on the nine Restructured Clinical (RC) scale raw scores and fitted and compared one- to three-factor models. The three-factor model, akin to the model in Tellegen and Ben-Porath, demonstrated the best fit to the data. Furthermore, the pattern matrices of loadings across the current sample and the U.S. samples were comparable despite some differences, such as the RC2 scale's salient, negative loading on a factor analogous to the Behavioral/Externalizing Dysfunction scale. We also investigated the unique psychological characteristics of the refugees, possibly resulting from the arduous, perilous journeys out of North Korea taken by this group of female refugees and discussed the results of EFA in light of those singular psychological traits and experiences. Overall, the three H-O scales of the Korean MMPI-2-RF evidenced reasonable cross-cultural factorial validity among the sample of North Korean female refugees.


Asunto(s)
MMPI/normas , Refugiados/psicología , Adolescente , Adulto , Anciano , Comparación Transcultural , República Popular Democrática de Corea , Análisis Factorial , Femenino , Humanos , Persona de Mediana Edad , Adulto Joven
19.
Psychol Assess ; 25(4): 1091-102, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23730825

RESUMEN

This study examined the heterogeneity in the Minnesota Multiphasic Personality Inventory-2nd Edition (MMPI-2; Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989) profiles of North Korean female refugee population (N = 2,163) using latent profile analysis (LPA). The North Korean female refugee sample arrived at Hanawon, South Korea's resettlement center for North Korean refugees in 2008 and 2009 and took the MMPI-2 as part of an initial psychological screen. The analysis, which included the T scores of the 6 validity scales and the 10 standard clinical scales, identified 4 classes with distinctive psychological features: Class 1 (nonclinical), Class 2 (demoralized), Class 3 (somatized), and Class 4 (detached). The 4 covariates entered into the model (age, education, affiliation with a religion, and the number of forced repatriations) impacted the likelihood of belonging to certain classes. As hypothesized, older age, fewer years of education, and more incidents of forced repatriation predicted higher proneness to psychopathology. However, contrary to our expectation, having a religious faith did not emerge as a salient protective factor. The current LPA results revealed distinct heterogeneous subgroups that previous research on the MMPI and MMPI-2 profiles of refugee populations overlooked with the assumption of a homogeneous sample. Clinical implications for the treatment of North Korean female refugees and the limitations of the study are discussed.


Asunto(s)
Pueblo Asiatico/psicología , MMPI/estadística & datos numéricos , Refugiados/psicología , Adolescente , Adulto , Factores de Edad , Anciano , República Popular Democrática de Corea/etnología , Escolaridad , Femenino , Humanos , Persona de Mediana Edad , Psicometría/estadística & datos numéricos , Religión y Psicología , Reproducibilidad de los Resultados , República de Corea , Trastornos Somatomorfos/diagnóstico , Trastornos Somatomorfos/etnología , Trastornos Somatomorfos/psicología , Trastornos por Estrés Postraumático/diagnóstico , Trastornos por Estrés Postraumático/psicología , Adulto Joven
20.
J Clin Psychol ; 66(3): 317-32, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20127962

RESUMEN

Guided by a culturally informed illness representation self-regulation model (CIRSRM), this study analyzed the relations among 223 Asian Americans' lay beliefs about depression, enculturation to Asian values, and their likelihood of seeking professional help for depression. Participants' lay beliefs were assessed through an analysis of written responses to open-ended questions about depression. Enculturation as well as beliefs in biological causes, situational causes, and a short duration of depression were significantly related to the likelihood of professional help seeking. In addition, enculturation moderated the association between several lay beliefs and the endorsement of professional help seeking. The findings are discussed in light of how clinicians can incorporate mental illness lay beliefs in their work with Asian Americans.


Asunto(s)
Asiático/psicología , Depresión , Conocimientos, Actitudes y Práctica en Salud , Aceptación de la Atención de Salud , Aculturación , Adolescente , Depresión/etnología , Depresión/terapia , Femenino , Humanos , Funciones de Verosimilitud , Modelos Logísticos , Masculino , Modelos Teóricos , Valores Sociales , Encuestas y Cuestionarios , Estados Unidos , Adulto Joven
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