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1.
Wound Repair Regen ; 32(4): 511-516, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38415502

RESUMEN

Self-improving dystrophic epidermolysis bullosa (DEB) is a genodermatosis that is inherited autosomal dominantly or recessively, and its clinical symptoms may improve or subside spontaneously. Herein, we report a case of self-improving DEB with COL7A1 p.Gly2025Asp variant. The diagnosis was made through histopathological, electron microscopic examination, and genetic testing. The same variant is also noted on his father, who presents with dystrophic toenails without any blisters. This study highlights that idiopathic nail dystrophy could be linked to congenital or hereditary disease. Furthermore, we conducted a review of the literature on the characteristics of reported cases of self-improving DEB with a personal or family history of nail dystrophy. The results supported our findings that nail dystrophy may be the sole manifestation in some family members. We suggest that individuals suffering from idiopathic nail dystrophy may seek genetic counselling when planning pregnancy to early evaluate the potential risk of hereditary diseases.


Asunto(s)
Colágeno Tipo VII , Epidermólisis Ampollosa Distrófica , Mutación Missense , Humanos , Epidermólisis Ampollosa Distrófica/genética , Colágeno Tipo VII/genética , Masculino , Taiwán , Heterocigoto , Linaje , Femenino , Adulto , Enfermedades de la Uña/genética
2.
J Reconstr Microsurg ; 2024 Sep 05.
Artículo en Inglés | MEDLINE | ID: mdl-39134047

RESUMEN

BACKGROUND: Over the past two decades, with the introduction of the perforator flap concept and advances in flap dissections, lower extremities have emerged as the preferred soft tissue flap donor sites. As a modern and high-volume microsurgical center, and the senior author being one of the pioneers and advocates for the use of lower extremity flap donor sites, we aim to investigate the role of latissimus dorsi (LD) free flap in head and neck reconstruction within our current practice. METHODS: All free LD flaps used for head and neck reconstruction performed by a single surgeon between January 2010 and June 2023 were reviewed for their indications and immediate and short-term outcomes. RESULTS: A total of 1,586 head and neck free flap reconstructions were performed, and 33 free LD flaps were identified. The patients' median age was 53 (interquartile range [IQR] 48.5-63.5) years. Twenty-nine (87.9%) flaps were used to reconstruct oro-maxillo-facial and four (12.1%) flaps were used to reconstruct scalp defects. Most patients had prior radiation (n = 28, 84.8%), neck dissection (n = 24, 72.7%), and multiple previous head and neck flap reconstructions with a median of 3.0 (IQR 3.0-3.5) previous flaps. Six (18.2%) LD flaps were used to replace failed flaps from other donor sites. No major complications such as total flap failure or takebacks, and no need for vein grafts but three (9.1%) had flap marginal necrosis. Other complications included one flap dehiscence (3.0%), one orocutaneous fistula (3.0%), two wound infections (6.1%), three plate exposures (9.1%), and three patients who developed local recurrence (9.1%). The median patient follow-up time was 16 (IQR 5-27) months. CONCLUSION: This retrospective study demonstrates the role of LD free flap in head and neck reconstruction as a reliable and versatile backup soft tissue flap when workhorse flaps from lower extremity donor sites are either unavailable or unsuitable.

3.
Biochem Biophys Res Commun ; 613: 94-99, 2022 07 12.
Artículo en Inglés | MEDLINE | ID: mdl-35550200

RESUMEN

Salicylic acid (SA) is a pivotal hormone required for the development of resistance to many pathogens in plants. As an SA receptor, NPR1(Nonexpressor of Pathogenesis-Related Genes 1) plays a key regulatory role in the plant immune response. The function of NPR1 is dependent on the alteration of its oligomer-to-monomer. Research in recent years has proven that NPRs perceive SA and regulate the expression of downstream defense genes, but the mechanism of NPR1 oligomer-to-monomer conversion remains unclear. In this paper, we mainly studied the oligomerization of NPR1. By mutation experiments on some residues in the BTB domain involved in protein interactions, we found that the residue His80 plays a key role in the oligomerization of NPR1. We also found that NPR1, interacting with zinc ions at a ratio close to 1:1, was independent of the residue His80. These findings may help us to understand the conformational conversion of NPR1.


Asunto(s)
Proteínas de Arabidopsis , Arabidopsis , Arabidopsis/genética , Proteínas de Arabidopsis/metabolismo , Regulación de la Expresión Génica de las Plantas , Reguladores del Crecimiento de las Plantas/metabolismo , Ácido Salicílico/metabolismo
4.
Neural Plast ; 2021: 6692132, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33603779

RESUMEN

In this paper, an analytical criterion is proposed to investigate the synchronization between two Hindmarsh-Rose neurons with linear and nonlinear coupling functions based on the Laplace transform method. Different from previous works, the synchronization error system is expressed in its integral form, which is more convenient to analyze. The synchronization problem of two HR coupled neurons is ultimately converted into the stability problem of roots to a nonlinear algebraic equation. Then, an analytical criterion for synchronization between the two HR neurons can be given by using the Routh-Hurwitz criterion. Numerical simulations show that the synchronization criterion derived in this paper is valid, regardless of the periodic spikes or burst-spike chaotic behavior of the two HR neurons. Furthermore, the analytical results have almost the same accuracy as the conditional Lyapunov method. In addition, the calculation quantities always are small no matter the linear and nonlinear coupling functions, which show that the approach presented in this paper is easy to be developed to study synchronization between a large number of HR neurons.


Asunto(s)
Potenciales de Acción/fisiología , Modelos Neurológicos , Red Nerviosa/fisiología , Neuronas/fisiología , Simulación por Computador , Dinámicas no Lineales
5.
Ann Plast Surg ; 86(2S Suppl 1): S23-S29, 2021 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-33346544

RESUMEN

BACKGROUND: Major burn-induced acute kidney injury (AKI) causes extremely high mortality, even though renal replacement therapy (RRT) was thought of as the most efficient treatment. There was scanty research for investigating the characteristic of burn-AKI-RRT patients during intensive care. This study aims to investigate the factors impacting the survival outcomes in those burn-AKI-RRT cases. METHODS: Using the Taiwan National Health Insurance Research Database and its affiliated database, the Registry for Catastrophic Illness Patients, we defined a cohort composed of 171 patients encountering major burn-induced AKI and receiving RRT during burn care for a 15-year observation period. Demographic characteristic, comorbidities, total body surface area (TBSA), major procedures, and complications were analyzed to explore the factors affecting the survival outcomes during acute burn care and 1 year after discharge. RESULTS: Patients who underwent tracheostomy and skin grafting had higher survival rates during acute burn care (tracheostomy: mortality vs survival, 15.7% vs 30.2%; P = 0.0257; skin grafting: mortality vs survival, 57.4% vs 76.2%; P = 0.0134). Multivariate regression analysis showed that tracheostomy group significantly presented with lower mortality risk by 65% (odds ratio [OR], 0.35; P = 0.0372), and subgroup analysis of delaminating follow-up duration showed that patients with tracheostomy had higher overall survival by 22% (90-day postburn mortality: nontracheostomy vs tracheostomy, 58.3% vs 36.3%; adjusted hazards ratio, 0.39; 95% confidence interval, 0.22-0.69; P = 0.0011), especially during postburn first 30 days (adjusted hazards ratio, 0.15; 95% confidence interval, 0.05-0.49; P = 0.0016). Total body surface area did not significantly affect survival; however, mortality risk was significantly higher in those with a larger TBSA (TBSA, ≥80%; OR, 6.48; P = 0.0022; TBSA, 60-79%; OR, 3.12; P = 0.0518; TBSA, 40-59%; OR, 1.88; P = 0.2402; TBSA, 30-39% as reference). CONCLUSIONS: For patients with major burn-induced AKI receiving RRT, tracheostomy and skin grafting may improve survival in the cases living through acute burn stage.


Asunto(s)
Lesión Renal Aguda , Quemaduras , Lesión Renal Aguda/epidemiología , Lesión Renal Aguda/etiología , Lesión Renal Aguda/terapia , Quemaduras/complicaciones , Quemaduras/terapia , Estudios de Seguimiento , Humanos , Unidades de Cuidados Intensivos , Estudios Retrospectivos , Taiwán/epidemiología
6.
Mol Divers ; 23(3): 709-722, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30603938

RESUMEN

A series of 8- and 11-substituted hybrids of oxoisoaporphine-tetrahydroisoquinoline have been designed and synthesized. The new derivatives strongly suppressed NO and iNOS production and modulated the production of cytokines by decreasing TNF-α and IL-1ß formation in lipopolysaccharide-activated BV-2 microglia and RAW 264.7 macrophages. Meanwhile, incubation of these derivatives with SH-SY5Y cells that were transfected with human APP containing the Swedish mutations significantly decreased the secretion of Aß42. Moreover, these hybrids could strongly inhibit the activity of acetylcholinesterase and butyrylcholinesterase. Further investigations in vivo indicated that the 8-substituted hybrid 3b significantly delayed paralysis caused by Aß1-42 toxicity in GMC101. In sum, these new hybrids could target multiple pathogenetic factors in Alzheimer's disease and merit further investigation.


Asunto(s)
Enfermedad de Alzheimer/metabolismo , Péptidos beta-Amiloides/química , Aporfinas/química , Fragmentos de Péptidos/química , Agregado de Proteínas/efectos de los fármacos , Tetrahidroisoquinolinas/química , Tetrahidroisoquinolinas/farmacología , Acetilcolinesterasa/metabolismo , Enfermedad de Alzheimer/tratamiento farmacológico , Péptidos beta-Amiloides/metabolismo , Animales , Antiinflamatorios/química , Antiinflamatorios/farmacología , Butirilcolinesterasa/metabolismo , Línea Celular Tumoral , Inhibidores de la Colinesterasa/química , Inhibidores de la Colinesterasa/farmacología , Regulación Enzimológica de la Expresión Génica/efectos de los fármacos , Humanos , Interleucina-1beta/biosíntesis , Ratones , Microglía/efectos de los fármacos , Microglía/metabolismo , Terapia Molecular Dirigida , Óxido Nítrico/biosíntesis , Óxido Nítrico Sintasa de Tipo II/metabolismo , Fragmentos de Péptidos/metabolismo , Células RAW 264.7 , Factor de Necrosis Tumoral alfa/biosíntesis
7.
Plant Biotechnol J ; 16(12): 2027-2041, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-29704444

RESUMEN

The Orchidaceae is a diverse and ecologically important plant family. Approximately 69% of all orchid species are epiphytes, which provide diverse microhabitats for many small animals and fungi in the canopy of tropical rainforests. Moreover, many orchids are of economic importance as food flavourings or ornamental plants. Phalaenopsis aphrodite, an epiphytic orchid, is a major breeding parent of many commercial orchid hybrids. We provide a high-quality chromosome-scale assembly of the P. aphrodite genome. The total length of all scaffolds is 1025.1 Mb, with N50 scaffold size of 19.7 Mb. A total of 28 902 protein-coding genes were identified. We constructed an orchid genetic linkage map, and then anchored and ordered the genomic scaffolds along the linkage groups. We also established a high-resolution pachytene karyotype of P. aphrodite and completed the assignment of linkage groups to the 19 chromosomes using fluorescence in situ hybridization. We identified an expansion in the epiphytic orchid lineage of FRS5-like subclade associated with adaptations to the life in the canopy. Phylogenetic analysis further provides new insights into the orchid lineage-specific duplications of MADS-box genes, which might have contributed to the variation in labellum and pollinium morphology and its accessory structure. To our knowledge, this is the first orchid genome to be integrated with a SNP-based genetic linkage map and validated by physical mapping. The genome and genetic map not only offer unprecedented resources for increasing breeding efficiency in horticultural orchids but also provide an important foundation for future studies in adaptation genomics of epiphytes.


Asunto(s)
Mapeo Cromosómico , Cromosomas de las Plantas/genética , Genoma de Planta/genética , Orchidaceae/genética , Fitomejoramiento/métodos , Adaptación Fisiológica/genética , Genoma de Planta/fisiología , Cariotipificación
9.
Lasers Med Sci ; 33(5): 977-982, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-29308553

RESUMEN

The improvement of peripheral circulation is crucial for the care of vasculopathic diabetic foot ulcer (DFU). Near-infrared spectroscopy (NIRS) was used to investigate the effects of Buerger's exercise on dorsal foot skin circulation with novel technique of measuring the absorption difference in wavelength of light between oxy-hemoglobin (HbO2) and deoxy-hemoglobin (HbR). Patients with vasculopathic DFU who could tolerate Buerger's exercise three times a day at home for at least 8 weeks were enrolled (group A). They were divided into two subgroups: without previous percutaneous transluminal angioplasty (PTA) (group A1) vs. with previous PTA (group A2). Wireless NIRS were applied on patients' dorsal foot to assess the peripheral circulation in follow-up clinics. The patients' wound condition, follow-up time, and concentration of HbO2 and total hemoglobin (HbT) before and after exercise rehabilitation program were documented. From May 2015 to February 2016, 14 patients with average age of 70.2 ± 11.2 were enrolled in this study (group A), including eight without previous PTA (group A1), and six with previous PTA (group A2). The concentration of HbO2 and HbT were significantly increased after exercise rehabilitation program training in group A (p = 0.024 in HbO2, p = 0.02 in HbT, n = 14) and group A2 (p = 0.021 in HbO2, p = 0.028 in HbT, n = 6), while the concentration in group A1 were improved with borderline significance after exercise (p = 0.055 in HbO2, p = 0.058 in HbT, n = 8). The majority of the ulcers were either completely healed (11/14 = 78.57%) or improving (3/14 = 21.43%). Buerger's exercise improved the peripheral circulation and wound condition in patients with vasculopathic DFU. The wireless apparatus is a novel and efficient tool to monitor rehabilitation program.


Asunto(s)
Pie Diabético/terapia , Terapia por Ejercicio , Pie/irrigación sanguínea , Piel/irrigación sanguínea , Espectroscopía Infrarroja Corta/instrumentación , Anciano , Demografía , Femenino , Humanos , Masculino , Oxihemoglobinas/metabolismo , Estudios Prospectivos
10.
Ann Plast Surg ; 81(6S Suppl 1): S39-S43, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-29851722

RESUMEN

OBJECTIVE: The aim of this study is to investigate the preexisting predictive factors associated with comorbidities for diabetic foot ulcer (DFU) in King classification III at an outpatient clinic. METHOD: This prospective study included 100 patients with DFU in King classification III treated at outpatient clinics in Chiayi Chang Gung Memorial Hospital from January 2011 to December 2011. The least follow-up time was 1 year. Medical documentations were in respect of patient's baseline characteristics, associated history, presence of comorbidities, follow-up time, and condition of wounds. Patients were divided into success group (healed or healing with wound reduction), stagnate group, and failure group (amputation or infection, need in-hospital medical service) in accordance with the treatment response of wounds. χ Test, Fisher exact test, and 1-way analysis of variance were used for variables in 3-group comparison, whereas Student t test was applied in 2-group comparison. The predictive factors with P value less than 0.1 were further investigated using the model of univariate logistic regression. RESULTS: With 3-group stratification according to treatment response-failure (n = 8), stagnate (n = 22), and success (n = 70)-the occurrence rate of retinopathy was higher in the treatment stagnate group (42.1%) than in the treatment failure (14.3%) and success groups (12.5%; P = 0.019); the rate of previous percutaneous transluminal angioplasty (PTA) history was higher in the treatment failure group (25%) than in the treatment stagnate (4.8%) and success groups (1.5%; P = 0.020). With 2-group stratification-failure (n = 8) versus nonfailure (n = 92), and success (n = 70) versus nonsuccess (n = 30)-PTA history was strongly associated with treatment failure (odds ratio [OR], 14.33; 95% confidence interval [CI], 1.71-120.32; P = 0.014), whereas retinopathy (OR, 0.21; 95% CI, 0.07-0.65; P = 0.006) was the major negative predictor for treatment success. Previous debridement met borderline significance to predict treatment nonsuccess (OR, 0.09; 95% CI, 0.01-1.01; P = 0.051). Sex, age, associated history, dyslipidemia, hypertension, coronary artery disease, cerebrovascular accident, chronic kidney disease, and end-stage renal disease and wound condition had no statistical significance. CONCLUSIONS: Previous PTA and retinopathy, which indicated preexisting severe vasculopathy, are univariate predictive factors for treatment failure and nonsuccess, respectively, in patients with King classification III DFU. With the subdivision of King classification III DFU, medical history taking and fundus examination are acceptable methods for risk screening at an outpatient clinic.


Asunto(s)
Pie Diabético/complicaciones , Pie Diabético/terapia , Anciano , Atención Ambulatoria , Pie Diabético/clasificación , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Factores de Riesgo , Resultado del Tratamiento
11.
Neurobiol Learn Mem ; 141: 1-8, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-28274822

RESUMEN

Co-housing with a company exerts profound effects on memory decline in animal model of Alzheimer's disease (AD). Recently, we found that APP/PS1 mice of 9-month-old improved their memories after co-housing with wide-type mice for 3months by increasing hippocampal brain-derived neurotrophic factor (BDNF) expression. However, the mechanism of how co-housing could induce BDNF expression remains elusive. Here we examined epigenetic changes in the mouse hippocampus that accompanied the co-housing-induced memory improvement. We found that the level of histone deacetylase 2 (HDAC2), but not that of HDAC1, was significantly lower in the memory improved mice than in the control and memory un-improved APP/PS1 mice after co-housing. Knockdown of Hdac2 resulted in a higher freezing response after co-housing. Conversely, over-expression of HDAC2 blocked co-housing-induced memory improvement. The level of Bdnf exon IV mRNA increased significantly after knockdown of Hdac2. ChIP assay revealed a decreased occupancy of HDAC2 in the promoter region of Bdnf exon IV of memory improved mice but not memory un-improved and control APP/PS1 mice. Consistently, the acetylation of histone 3 on Lys 9 (H3K9) and histone 4 on Lys12 (H4K12) increased significantly in the promoter region of Bdnf exon IV. These results suggest HDAC2 expression is reduced after co-housing resulting in a decreased occupancy of HDAC2 and increased histone H3K9 and H4K12 acetylation in the promoter region of Bdnf exon IV, leading to increased BDNF expression in the hippocampus that improves memory.


Asunto(s)
Enfermedad de Alzheimer/metabolismo , Factor Neurotrófico Derivado del Encéfalo/metabolismo , Epigénesis Genética , Hipocampo/metabolismo , Vivienda para Animales , Trastornos de la Memoria/metabolismo , Enfermedad de Alzheimer/psicología , Animales , Factor Neurotrófico Derivado del Encéfalo/genética , Modelos Animales de Enfermedad , Histona Desacetilasa 2/genética , Histona Desacetilasa 2/metabolismo , Masculino , Trastornos de la Memoria/psicología , Ratones
12.
BMC Cancer ; 17(1): 905, 2017 12 29.
Artículo en Inglés | MEDLINE | ID: mdl-29284440

RESUMEN

BACKGROUND: Glioma stem cells (GSCs) contribute to tumor recurrence and drug resistance. This study characterizes the tumorigenesis of CD133+ cells and their sensitivity to pharmacological inhibition. METHODS: GSCs from human U87 and rat C6 glioblastoma cell lines were isolated via magnetic cell sorting using CD133 as a cancer stem cell marker. Cell proliferation was determined using the WST-1 assay. An intracranial mouse model and bioluminescence imaging were used to assess the effects of drugs on tumor growth in vivo. RESULTS: CD133+ cells expressed stem cell markers and exhibited self-renewal and enhanced tumor formation. Minocycline (Mino) was more effective in reducing the survival rate of CD133+ cells, whereas CD133- cells were more sensitive to inhibition by the signal transducer and activator of transcription 3 (STAT3) inhibitor. Inhibition of STAT3 decreased the expression of CD133+ stem cell markers. The combination of Mino and STAT3 inhibitor synergistically reduced the cell viability of glioma cells. Furthermore, this combination synergistically suppressed tumor growth in nude mice. CONCLUSION: The results suggest that concurrent targeting of different subpopulations of glioblastoma cells may be an effective therapeutic strategy for patients with malignant glioma.


Asunto(s)
Antineoplásicos/farmacología , Neoplasias Encefálicas/tratamiento farmacológico , Sinergismo Farmacológico , Glioblastoma/tratamiento farmacológico , Minociclina/farmacología , Células Madre Neoplásicas/efectos de los fármacos , Factor de Transcripción STAT3/antagonistas & inhibidores , Antígeno AC133/metabolismo , Animales , Antibacterianos/farmacología , Apoptosis/efectos de los fármacos , Neoplasias Encefálicas/metabolismo , Neoplasias Encefálicas/patología , Proliferación Celular/efectos de los fármacos , Combinación de Medicamentos , Glioblastoma/metabolismo , Glioblastoma/patología , Humanos , Masculino , Ratones Endogámicos BALB C , Ratones Desnudos , Células Madre Neoplásicas/metabolismo , Células Madre Neoplásicas/patología , Ratas , Células Tumorales Cultivadas , Ensayos Antitumor por Modelo de Xenoinjerto
13.
Plant Mol Biol ; 84(4-5): 529-48, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24173913

RESUMEN

Orchids display unique phenotypes, functional characteristics and ecological adaptations that are not found in model plants. In this study, we aimed to characterize the microRNA (miRNA) transcriptome and identify species- and tissue-specific miRNAs in Phalaenopsis aphrodite. After data filtering and cleanup, a total of 59,387,374 reads, representing 1,649,996 unique reads, were obtained from four P. aphrodite small RNA libraries. A systematic bioinformatics analysis pipeline was developed that can be used for miRNA and precursor mining, and target gene prediction in non-model plants. A total of 3,251 unique reads for 181 known plant miRNAs (belonging to 88 miRNA families), 23 new miRNAs and 91 precursors were identified. All the miRNA star sequences (miRNA*), the complementary strands of miRNA that from miRNA/miRNA* duplexes, of the predicted new miRNAs were detected in our small RNA libraries, providing additional evidence for their existence as new miRNAs in P. aphrodite. Furthermore, 240 potential miRNA-targets that appear to be involved in many different biological activities and molecular functions, especially transcription factors, were identified, suggesting that miRNAs can impact multiple processes in P. aphrodite. We also verified the cleavage sites for six targets using RNA ligase-mediated rapid amplification of 5' ends assay. The results provide valuable information about the composition, expression and function of miRNA in P. aphrodite, and will aid functional genomics studies of orchids.


Asunto(s)
MicroARNs/genética , Orchidaceae/genética , ARN de Planta/genética , Transcriptoma , Secuencia de Bases , Análisis por Conglomerados , Regulación de la Expresión Génica de las Plantas , Biblioteca de Genes , Ontología de Genes , Secuenciación de Nucleótidos de Alto Rendimiento , MicroARNs/química , Datos de Secuencia Molecular , Conformación de Ácido Nucleico , Análisis de Secuencia por Matrices de Oligonucleótidos , Proteínas de Plantas/genética , Precursores del ARN/genética , ARN de Planta/química , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Homología de Secuencia de Ácido Nucleico
14.
Learn Mem ; 20(6): 328-35, 2013 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-23685808

RESUMEN

Leptin, a 167 amino acid peptide, is synthesized predominantly in the adipose tissues and plays a key role in the regulation of food intake and body weight. Recent studies indicate that leptin receptor is expressed with high levels in many brain regions that may regulate synaptic plasticity. Here we show that deprivation of rapid eye movement (REMD) sleep resulted in impairment of both cue and contextual fear memory. In parallel, surface expression of GluR1 was reduced in the amygdala. Intraperitoneal injection of leptin to the REMD mice rescued memory impairment and reversed surface GluR1 reduction. Using whole-cell recording to evaluate the synaptic function of the thalamus-lateral amygdala (LA) pathway, we found a decrease in frequency and amplitude of miniature excitatory postsynaptic currents (mEPSCs) concomitant with reduced AMPA/NMDA ratios in the REMD mice. By contrast, paired-pulse facilitation (PPF) was increased. The effects of REMD on mEPSCs and AMPA/NMDA ratio could be reversed by leptin treatment, whereas on PPR it could not. Phosphatase and tensin homolog (PTEN), a dual protein/lipid phosphatase, down-regulates the effect of the PI-3 kinase pathway. Fear conditioning increased whereas REMD led to a decrease in the phosphorylated states of PTEN, Akt, and glycogen synthase kinase-3ß (GSK3ß), and the effects of REMD were reversed by leptin. These results suggest that both pre- and postsynaptic functions of the thalamus-LA pathway were altered by fear conditioning and REMD in opposite directions. Leptin treatment reversed REMD-induced memory deficits primarily by a postsynaptic action by restoring surface expression of GluR1 without affecting PPR.


Asunto(s)
Encéfalo/metabolismo , Leptina/metabolismo , Memoria/fisiología , Privación de Sueño/complicaciones , Privación de Sueño/metabolismo , Animales , Western Blotting , Condicionamiento Clásico , Potenciales Postsinápticos Excitadores/fisiología , Masculino , Ratones , Ratones Endogámicos C57BL , Vías Nerviosas/metabolismo , Plasticidad Neuronal/fisiología , Técnicas de Placa-Clamp
15.
Plast Reconstr Surg Glob Open ; 12(2): e5587, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38328268

RESUMEN

Lipomas are the most prevalent type of benign soft tissue tumors, primarily composed of adipocytes, and typically remain asymptomatic unless they reach a significant size. Although giant lipomas are infrequent, their occurrence on the chest wall, particularly in the interpectoral region, is exceedingly rare. We present a unique case of a 48-year-old man with a massive interpectoral lipoma measuring 19.4 × 12.9 × 9.4 cm, which resulted in venous thoracic outlet syndrome by compressing the subclavian vein. This case highlights the clinical challenges in diagnosing deep-seated chest wall lipomas and underscores the necessity of considering thoracic outlet syndrome as a potential complication, even in the absence of direct neural or arterial compression. The presentation of thoracic outlet syndrome can vary, and a comprehensive evaluation is imperative for accurate diagnosis and management.

16.
Eur J Pharmacol ; 981: 176918, 2024 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-39159717

RESUMEN

Maladaptive reactive aggression is a core symptom of neuropsychiatric disorders such as schizophrenia. While uncontrolled aggression dampens societal safety, there is a limited understanding of the neural regulation involved in reactive aggression and its treatment. High levels of aggression have been linked to low serotonin (5-HT) levels. Additionally, post-weaning socially isolated (SI) mice exhibit outbursts of aggression following encountering acute stress, and hyperactivated ventral hippocampus (vHip) involves this stress-provoked escalated aggression. Here, we investigated the potential role of the raphe nucleus projecting to the vHip in modulating aggressive behavior. Chemogenetically activating the dorsal raphe nucleus (DRN) soma projecting the vHip or DRN nerve terminals in the vHip reduced reactive aggression. The reduction of attack behavior was abolished by the pretreatment of 5-HT1B receptor antagonist SB-224289. However, activating the median raphe nucleus (MRN)-to-vHip pathway ameliorated depression-like behavior but did not affect reactive aggression. DRN→vHip activation suppressed the vHip downstream area, the ventromedial hypothalamus (VMH), which is a core aggression area. Intra-vHip infusion of 5-HT1B receptor agonists (anpirtoline, CP-93129) suppressed reactive aggression and decreased c-Fos levels in the vHip neurons projecting to the VMH, suggesting an inhibition mechanism. Our findings indicate that activating the DRN projecting to the vHip is sufficient to inhibit reactive aggression in a 5-HT1B receptor-dependent manner. Thus, targeting 5-HT1B receptor could serve as a promising therapeutic approach to ameliorate symptoms of reactive aggression.


Asunto(s)
Agresión , Núcleo Dorsal del Rafe , Hipocampo , Receptor de Serotonina 5-HT1B , Animales , Agresión/efectos de los fármacos , Agresión/fisiología , Núcleo Dorsal del Rafe/metabolismo , Núcleo Dorsal del Rafe/efectos de los fármacos , Receptor de Serotonina 5-HT1B/metabolismo , Masculino , Ratones , Hipocampo/metabolismo , Hipocampo/efectos de los fármacos , Conducta Animal/efectos de los fármacos , Ratones Endogámicos C57BL , Proteínas Proto-Oncogénicas c-fos/metabolismo
17.
Oral Radiol ; 40(3): 385-393, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38421497

RESUMEN

OBJECTIVES: This study assessed the incidence of postfracture radiological temporomandibular joint (TMJ) degeneration in patients with different types of mandibular fractures, focusing on the impact of condylar fractures. METHODS: This retrospective review included patients diagnosed as having mandibular fractures from 2016 to 2020 who had undergone initial computed tomography (CT) and a follow-up CT scan at least 1-month postfracture. Patient demographics, fracture details, treatment methods, and radiological signs of TMJ degeneration on CT were analyzed to identify risk factors for postfracture TMJ degeneration, with a focus on condylar head fracture and non-head (condylar neck or base) fractures. RESULTS: The study included 85 patients (mean age: 38.95 ± 17.64 years). The per-patient analysis indicated that the incidence of new radiologic TMJ degeneration on CT was significantly the highest (p < 0.001) in patients with condylar head fractures (90.91%), followed by those with non-head condylar fractures (57.14%), and those without condylar involvement (24.49%). The per-joint analysis indicated nearly inevitable degeneration (93.94%) in 33 TMJs with ipsilateral condylar head fractures. For the remaining 137 TMJs, multivariate logistic regression revealed that other patterns (ipsilateral non-head, contralateral, or both) of condylar fractures (odds ratio (OR) = 3.811, p = 0.007) and the need for open reduction and internal fixation (OR = 5.804, p = 0.005) significantly increased the risk of TMJ degeneration. CONCLUSIONS: Ipsilateral non-head condylar fractures and contralateral condylar fractures are associated with a high risk of postfracture TMJ degeneration. Indirect trauma plays a vital role in postfracture TMJ degeneration.


Asunto(s)
Cóndilo Mandibular , Fracturas Mandibulares , Trastornos de la Articulación Temporomandibular , Tomografía Computarizada por Rayos X , Humanos , Fracturas Mandibulares/diagnóstico por imagen , Masculino , Femenino , Estudios Retrospectivos , Adulto , Cóndilo Mandibular/diagnóstico por imagen , Cóndilo Mandibular/lesiones , Trastornos de la Articulación Temporomandibular/diagnóstico por imagen , Factores de Riesgo , Persona de Mediana Edad , Incidencia , Articulación Temporomandibular/diagnóstico por imagen , Articulación Temporomandibular/lesiones , Anciano , Adolescente
18.
Thorac Cancer ; 15(11): 867-877, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38419563

RESUMEN

BACKGROUND: This retrospective study aimed to evaluate the precision and safety outcomes of image-guided lung percutaneous thermal ablation (LPTA) methods, focusing on radiofrequency ablation (RFA) and microwave ablation (MWA). The study utilized an innovative angle reference guide to facilitate these techniques in the treatment of lung tumors. METHODS: This study included individuals undergoing LPTA with the assistance of laser angle guide assembly (LAGA) at our hospital between April 2011 and March 2021. We analyzed patient demographics, tumor characteristics, procedure details, and complications. Logistic regressions were employed to assess risk factors associated with complications. RESULTS: A total of 202 patients underwent ablation for 375 lung tumors across 275 sessions involving 495 ablations. Most procedures used RFA, especially in the right upper lobe, and the majority of ablations were performed in the prone position (49.7%). Target lesions were at a median depth of 39.3 mm from the pleura surface, and remarkably, 91.9% required only a single puncture. Complications occurred in 31.0% of ablations, with pneumothorax being the most prevalent (18.3%), followed by pain (12.5%), sweating (6.5%), fever (5.0%), cough (4.8%), hemothorax (1.6%), hemoptysis (1.2%), pleural effusion (2.0%), skin burn (0.6%), and air emboli (0.2%). The median procedure time was 21 min. Notably, smoking/chronic obstructive pulmonary disease emerged as a significant risk factor for complications. CONCLUSION: The LAGA-assisted LPTA enhanced safety by improving accuracy and reducing risks. Overall, this investigation contributes to the ongoing efforts to refine and improve the clinical application of these thermal ablation techniques in the treatment of lung tumors.


Asunto(s)
Ablación por Catéter , Hipertermia Inducida , Neoplasias Pulmonares , Humanos , Estudios Retrospectivos , Neoplasias Pulmonares/patología , Pulmón/patología , Tomografía Computarizada por Rayos X/métodos , Ablación por Catéter/métodos , Resultado del Tratamiento
19.
Plant Cell Physiol ; 54(2): e11, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23324169

RESUMEN

A specialized orchid database, named Orchidstra (URL: http://orchidstra.abrc.sinica.edu.tw), has been constructed to collect, annotate and share genomic information for orchid functional genomics studies. The Orchidaceae is a large family of Angiosperms that exhibits extraordinary biodiversity in terms of both the number of species and their distribution worldwide. Orchids exhibit many unique biological features; however, investigation of these traits is currently constrained due to the limited availability of genomic information. Transcriptome information for five orchid species and one commercial hybrid has been included in the Orchidstra database. Altogether, these comprise >380,000 non-redundant orchid transcript sequences, of which >110,000 are protein-coding genes. Sequences from the transcriptome shotgun assembly (TSA) were obtained either from output reads from next-generation sequencing technologies assembled into contigs, or from conventional cDNA library approaches. An annotation pipeline using Gene Ontology, KEGG and Pfam was built to assign gene descriptions and functional annotation to protein-coding genes. Deep sequencing of small RNA was also performed for Phalaenopsis aphrodite to search for microRNAs (miRNAs), extending the information archived for this species to miRNA annotation, precursors and putative target genes. The P. aphrodite transcriptome information was further used to design probes for an oligonucleotide microarray, and expression profiling analysis was carried out. The intensities of hybridized probes derived from microarray assays of various tissues were incorporated into the database as part of the functional evidence. In the future, the content of the Orchidstra database will be expanded with transcriptome data and genomic information from more orchid species.


Asunto(s)
Bases de Datos Genéticas , Genoma de Planta , Orchidaceae/genética , ARN de Planta/análisis , Sondas de ADN , Perfilación de la Expresión Génica/métodos , Internet , MicroARNs/genética , Anotación de Secuencia Molecular , Orchidaceae/clasificación , Filogenia , ARN de Planta/genética , Transcriptoma
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