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1.
Semin Cell Dev Biol ; 156: 35-43, 2024 03 15.
Artículo en Inglés | MEDLINE | ID: mdl-37331841

RESUMEN

One of the important functions of regulated cell death is to prevent cells from inappropriately acquiring extra copies of their genome, a state known as polyploidy. Apoptosis is the primary cell death mechanism that prevents polyploidy, and defects in this apoptotic response can result in polyploid cells whose subsequent error-prone chromosome segregation are a major contributor to genome instability and cancer progression. Conversely, some cells actively repress apoptosis to become polyploid as part of normal development or regeneration. Thus, although apoptosis prevents polyploidy, the polyploid state can actively repress apoptosis. In this review, we discuss progress in understanding the antagonistic relationship between apoptosis and polyploidy in development and cancer. Despite recent advances, a key conclusion is that much remains unknown about the mechanisms that link apoptosis to polyploid cell cycles. We suggest that drawing parallels between the regulation of apoptosis in development and cancer could help to fill this knowledge gap and lead to more effective therapies.


Asunto(s)
Neoplasias , Poliploidía , Humanos , Neoplasias/genética , Apoptosis/genética , Segregación Cromosómica , Inestabilidad Genómica
2.
J Med Virol ; 96(3): e29426, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38420851

RESUMEN

With the rising need for accessible cervical cancer screening, self-sampling methods offer a promising alternative to traditional physician-led sampling. This study aims to evaluate the efficacy of the HygeiaTouch Self Sampling Kit for Women in detecting human papillomavirus (HPV) types and predicting cervical lesions. We studied the concordance in identifying high-risk HPV (hrHPV) types between samples collected by physicians and those self-collected by women using a self-sampling kit for validation. Women aged 21-65, fitting into specific categories based on their cervical health history were eligible. Cohen's kappa coefficient to gauge concordance between the two specimen types and relative accuracy metrics in identifying cervical intraepithelial neoplasia (CIN) were also calculated, with physician-sampled specimens serving as a reference. A total of 1210 participants from three institutes were involved. The self-sampling kit closely matched the physician-led method in terms of collecting valid specimens (100% vs. 100%), identifying hrHPV types (kappa: 0.75, 95% confidence interval [95% CI]: 0.72-0.79; agreement: 87.7%, 95% CI: 85.8-89.6) and predicting CIN grade 2 or worse (CIN2+) (relative sensitivity: 0.949, relative accuracy: 0.959). Kappa values varied between 0.71 and 0.83 for different hrHPV types and combinations, with an overall value 0.75 (95% CI: 0.72-0.79) signifying robust compatibility between the two methods. Our study underscores the potential of the HygeiaTouch Self Sampling Kit as a reliable, efficient, and user-friendly alternative to traditional sampling methods. This suggests that self-sampling could be pivotal in expanding cervical cancer screening accessibility and enhancing detection rates.


Asunto(s)
Infecciones por Papillomavirus , Médicos , Displasia del Cuello del Útero , Neoplasias del Cuello Uterino , Femenino , Humanos , Neoplasias del Cuello Uterino/diagnóstico , Virus del Papiloma Humano , Detección Precoz del Cáncer/métodos , Papillomaviridae/genética , Manejo de Especímenes/métodos , Frotis Vaginal/métodos , Sensibilidad y Especificidad
3.
J Org Chem ; 89(11): 7513-7520, 2024 Jun 07.
Artículo en Inglés | MEDLINE | ID: mdl-38722245

RESUMEN

A Rh(III)-catalyzed annulation of 2-arylbenzimidazoles with α-diazo carbonyl compounds via C-H activation/carbene insertion/intramolecular cyclization is explored. The switchable product selectivity is achieved by the use of distinct α-diazo carbonyl compounds. Benzimidazole-fused quinolines are obtained through [4 + 2] annulation exclusively when 2-diazocyclohexane-1,3-diones are used, where they act as a C2 synthon. Alternatively, diazonaphthalen-1(2H)-ones merely function as a one-carbon unit synthon to generate a quaternary center through [4 + 1] cyclization to afford spirocyclic benzimidazole-fused isoindole naphthalen-2-ones. A thorough mechanistic study reveals the course of the reaction.

4.
Environ Toxicol ; 39(3): 1494-1504, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37994244

RESUMEN

As a synthetic androgen, 17α-methyltestosterone (MT) is widely used in aquaculture to induce sex reversal and may pose a potential risk to aquatic organisms. This ecological risk has attracted the attention of many scholars, but it is not comprehensive enough. Thus, the adverse effects of MT on zebrafish (Danio rerio) were comprehensively evaluated from gonadal histology, as well as the mRNA expression levels of 47 genes related to hypothalamic-pituitary-gonadal (HPG) axis, germ cell differentiation, sex determination, and hypothalamus-pituitary-thyroid (HPT) axis. Adult zebrafish with a female/male ratio of 5:7 were exposed to a solvent control (0.001% dimethyl sulfoxide) and three measured concentrations of MT (5, 51 and 583 ng/L) for 50 days. The results showed that MT had no significant histological effects on the ovaries of females, but the frequency of late-mature oocytes (LMO) showed a downward trend, indicating that MT could induce ovarian suppression to a certain extent. The transcriptional expression of activating transcription factor 4b1 (atf4b1), activating transcription factor 4b2 (atf4b2), calcium/calmodulin-dependent protein kinase II delta 1 (camk2d1), calcium/calmodulin-dependent protein kinase II delta 2 (camk2d2) and calcium/calmodulin-dependent protein kinase II inhibitor 2 (camk2n2) genes in the brain of females increased significantly at all treatment groups of MT, and the mRNA expression of forkhead box L2a (foxl2) and ovarian cytochrome P450 aromatase (cyp19a1a) genes in the ovaries were down-regulated by 5 and 583 ng/L group, which would translate into inhibition of oocyte development. As compared to females, MT had relatively little effects on the reproductive system of males, and only the transcriptional alterations of synaptonemal complex protein 3 (sycp3) and 17-alpha-hydroxylase/17,20-lyase (cyp17) genes were observed in the testes, not enough to affect testicular histology. In addition, MT at all treatments strongly increased corticotropin-releasing hormone (crh) transcript in the brain of females, as well as deiodinase 2 (dio2) transcript in the brain of males. The paired box protein 8 (pax8) gene was significantly decreased at 51 or 583 ng/L of MT in both female and male brains. The above results suggest that MT can pose potential adverse effects on the reproductive and thyroid endocrine system of fish.


Asunto(s)
Contaminantes Químicos del Agua , Pez Cebra , Animales , Masculino , Femenino , Pez Cebra/metabolismo , Metiltestosterona/metabolismo , Metiltestosterona/farmacología , Eje Hipotálamico-Pituitario-Gonadal , Glándula Tiroides/metabolismo , Calcio/metabolismo , Proteína Quinasa Tipo 2 Dependiente de Calcio Calmodulina/genética , Proteína Quinasa Tipo 2 Dependiente de Calcio Calmodulina/metabolismo , Proteína Quinasa Tipo 2 Dependiente de Calcio Calmodulina/farmacología , Gónadas , Expresión Génica , Células Germinativas , ARN Mensajero/metabolismo , Factores de Transcripción Activadores/genética , Factores de Transcripción Activadores/metabolismo , Factores de Transcripción Activadores/farmacología , Contaminantes Químicos del Agua/metabolismo
5.
J Formos Med Assoc ; 123(1): 7-15, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37690868

RESUMEN

Melanoma is rare in Taiwan. Asian melanoma is distinct from Western melanoma because acral and mucosal melanoma accounts for the majority of melanoma cases, leading to distinct tumor behaviors and genetic profiling. With consideration of the clinical guidelines in Western countries, Taiwanese experts developed a local clinical practice consensus guideline. This consensus includes diagnosis, staging, and surgical and systemic treatment, based only on clinical evidence, local epidemiology, and available resources evaluated by experts in Taiwan. This consensus emphasizes the importance of surgical management, particularly for sentinel lymph node biopsies. In addition, molecular testing for BRAF is mandatory for patients before systemic treatment. Furthermore, immunotherapy and targeted therapy are prioritized for systemic treatment. This consensus aimed to assist clinicians in Taiwan in diagnosing and treating patients according to available evidence.


Asunto(s)
Melanoma , Neoplasias Cutáneas , Humanos , Melanoma/diagnóstico , Melanoma/terapia , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/terapia , Neoplasias Cutáneas/genética , Taiwán , Inmunoterapia , Consenso
6.
J Environ Manage ; 351: 119937, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38159304

RESUMEN

Petroleum hydrocarbon (PHC) degrading bacteria have been frequently discovered. However, in practical application, a single species of PHC degrading bacterium with weak competitiveness may face environmental pressure and competitive exclusion due to the interspecific competition between petroleum-degrading bacteria as well as indigenous microbiota in soil, leading to a reduced efficacy or even malfunction. In this study, the diesel degradation ability and environmental robustness of an endophytic strain Pseudomonas aeruginosa WS02, were investigated. The results show that the cell membrane surface of WS02 was highly hydrophobic, and the strain secreted glycolipid surfactants. Genetic analysis results revealed that WS02 contained multiple metabolic systems and PHC degradation-related genes, indicating that this strain theoretically possesses the capability of oxidizing both alkanes and aromatic hydrocarbons. Gene annotation also showed many targets which coded for heavy metal resistant and metal transporter proteins. The gene annotation-based inference was confirmed by the experimental results: GC-MS analysis revealed that short chain PHCs (C10-C14) were completely degraded, and the degradation of PHCs ranging from C15-C22 were above 90% after 14 d in diesel-exposed culture; Heavy metal (Mn2+, Pb2+ and Zn2+) exposure was found to affect the growth of WS02 to some extent, but not its ability to degrade diesel, and the degradation efficiency was still maintained at 39-59%. WS02 also showed a environmental robustness along with PHC-degradation performance in the co-culture system with other bacterial strains as well as in the co-cultured system with the indigenous microbiota in soil fluid extracted from a PHC-contaminated site. It can be concluded that the broad-spectrum diesel degradation efficacy and great environmental robustness give P. aeruginosa WS02 great potential for application in the remediation of PHC-contaminated soil.


Asunto(s)
Metales Pesados , Petróleo , Contaminantes del Suelo , Pseudomonas aeruginosa/genética , Pseudomonas aeruginosa/metabolismo , Biodegradación Ambiental , Contaminantes del Suelo/análisis , Petróleo/análisis , Hidrocarburos/metabolismo , Bacterias/metabolismo , Suelo/química , Metales Pesados/análisis , Microbiología del Suelo
7.
Small ; 19(11): e2207278, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36651002

RESUMEN

Drug delivery nanoparticles (NPs) based entirely on materials generally recognized as safe that provide widespread parenchymal distribution following intracranial administration via convection-enhanced delivery (CED) are introduced. Poly(lactic-co-glycolic acid) (PLGA) NPs are coated with various poloxamers, including F68, F98, or F127, via physical adsorption to render particle surfaces non-adhesive, thereby resisting interactions with brain extracellular matrix. F127-coated PLGA (F127/PLGA) NPs provide markedly greater distribution in healthy rat brains compared to uncoated NPs and widespread coverage in orthotopically-established brain tumors. Distribution analysis of variously-sized F127/PLGA NPs determines the average rat brain tissue porosity to be between 135 and 170 nm while revealing unprecedented brain coverage of larger F127/PLGA NPs with an aid of hydraulic pressure provided by CED. Importantly, F127/PLGA NPs can be lyophilized for long-term storage without compromising their ability to penetrate the brain tissue. Further, 65- and 200-nm F127/PLGA NPs lyophilized-reconstituted and administered in a moderately hyperosmolar infusate solution show further enhance particle dissemination in the brain via osmotically-driven enlargement of the brain tissue porosity. Combination of F127/PLGA NPs and osmotic tissue modulation provides a means with a clear regulatory path to maximize the brain distribution of large NPs that enable greater drug loading and prolong drug release.


Asunto(s)
Nanopartículas , Neoplasias , Ratas , Animales , Copolímero de Ácido Poliláctico-Ácido Poliglicólico , Ácido Poliglicólico , Ácido Láctico , Portadores de Fármacos , Encéfalo , Tamaño de la Partícula
8.
FASEB J ; 36(5): e22313, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35471587

RESUMEN

Thioredoxin-interacting protein (TXNIP), also known as Vitamin-D upregulated protein-1 (VDUP-1), interacts with thioredoxin to regulate redox responses and participates in diverse disorders including metabolic, cardiovascular, inflammatory and malignant diseases. Psoriasis is characterized by chronic skin inflammation and an aberrant pattern of keratinocyte differentiation. Clinically, psoriasis is associated with various cardiometabolic comorbidities but studies on TXNIP's biological role in skin disorders are limited. In this study, we investigated TXNIP expression in psoriasis and its regulation in normal human epidermal keratinocytes (NHEKs), and then explored how TXNIP regulated skin keratinocyte differentiation to determine its role in psoriasis pathogenesis. Our immunohistochemical study demonstrated extensive TXNIP expression in the upper and lower epidermis of psoriasis compared to predominant TXNIP expression in the basal layer of normal skin. 1, 25-dihydroxyvitamin D3  suppressed but TGF-α and EGF enhanced TXNIP expression in NHEKs. An inducer of keratinocyte differentiation, phorbol 12-myristate 13-acetate (PMA), also diminished TXNIP expression, which was reversed by PKC-δ knockdown. TXNIP knockdown reduced PMA-induced involucrin and transglutaminse-1 expression, and increased p63 expression in NHEKs but did not significantly affect cell proliferation. H2 O2 -induced ROS production and EGFR phosphorylation decreased in NHEKs with TXNIP knockdown. Furthermore, PMA-induced PKC-δ phosphorylation, TGF-α, and EGF-triggered EGFR phosphorylation were attenuated by TXNIP knockdown. Our results unraveled the regulation and function of TXNIP expression in skin keratinocytes and the cross-regulation between TXNIP and EGFR signaling. These findings imply a role of TXNIP in psoriasis and provide insight into the possible impact of TXNIP regulators on the skin or psoriasis.


Asunto(s)
Proteínas Portadoras , Psoriasis , Factor de Crecimiento Transformador alfa , Proteínas Portadoras/metabolismo , Factor de Crecimiento Epidérmico/metabolismo , Receptores ErbB/metabolismo , Humanos , Queratinocitos/metabolismo , Psoriasis/metabolismo , Tiorredoxinas/genética , Tiorredoxinas/metabolismo , Factor de Crecimiento Transformador alfa/metabolismo
9.
Cell Commun Signal ; 21(1): 233, 2023 09 18.
Artículo en Inglés | MEDLINE | ID: mdl-37723552

RESUMEN

Cancer immunotherapy has been proven to be clinically effective in multiple types of cancers. Lymphocyte function-associated antigen 1 (LFA-1), a member of the integrin family of adhesion molecules, is expressed mainly on αß T cells. LFA-1 is associated with tumor immune responses, but its exact mechanism remains unknown. Here, two kinds of mice tumor model of LFA-1 knockout (LFA-1-/-) mice bearing subcutaneous tumor and Apc Min/+;LFA-1-/- mice were used to confirm that LFA-1 knockout resulted in inhibition of tumor growth. Furthermore, it also demonstrated that the numbers of regulatory T cells (Treg cells) in the spleen, blood, mesenteric lymph nodes were decreased in LFA-1-/- mice, and the numbers of Treg cells in mesenteric lymph nodes were also decreased in Apc Min/+;LFA-1-/- mice compared with Apc Min/+ mice. LFA-1 inhibitor (BIRT377) was administered to subcutaneous tumor-bearing LFA-1+/+ mice, and the results showed that the tumor growth was inhibited and the number of Treg cells was reduced. The analysis of TIMER tumor database indicated that LFA-1 expression is positively associated with Treg cells and TNM stage. Conclusively, this suggests that LFA-1 knockout would inhibit tumor growth and is correlated with Treg cells. LFA-1 may be one potential target for cancer immunotherapy. Video Abstract.


Asunto(s)
Antígeno-1 Asociado a Función de Linfocito , Neoplasias , Animales , Ratones , Linfocitos T Reguladores , Bazo , Bases de Datos Factuales
10.
Acta Neurol Taiwan ; 32(3): 108-112, 2023 Sep 30.
Artículo en Inglés | MEDLINE | ID: mdl-37674421

RESUMEN

PURPOSE: Warfarin is associated with paradoxical procoagulant effect that leads to a transient hypercoagulable state and acute ischemic stroke (AIS). This clinical dilemma is further confounded when the patient has multiple comorbidities and the optimal treatment strategies are unclear. CASE REPORT: We report a 78-year-old male with valvular heart disease, congestive heart failure, and atrial fibrillation, who received bioprosthetic valve replacement and developed AIS related to the paradoxical procoagulant effect of warfarin. Emergent cerebral angiography with mechanical thrombectomy was performed, and recanalization was successfully achieved. After shifting warfarin to nonvitamin K oral anticoagulant (NOAC), the paradoxical procoagulant effect ameliorated. CONCLUSION: This report describes the roles of endovascular therapy and NOAC in patients with similar highly complex conditions and has clinical relevance for therapeutic plans in the clinical setting.


Asunto(s)
Fibrilación Atrial , Accidente Cerebrovascular Isquémico , Masculino , Humanos , Anciano , Fibrilación Atrial/complicaciones , Fibrilación Atrial/tratamiento farmacológico , Fibrilación Atrial/cirugía , Warfarina/efectos adversos , Anticoagulantes/efectos adversos , Trombectomía/efectos adversos
11.
Environ Geochem Health ; 45(12): 8881-8895, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37358714

RESUMEN

Studying the transport of petroleum hydrocarbons in cadmium-/naphthalene-contaminated calcareous soils is crucial to comprehensive assessment of environmental risks and developing appropriate strategies to remediate petroleum hydrocarbons pollution in karst areas. In this study, n-hexadecane was selected as a model petroleum hydrocarbon. Batch experiments were conducted to explore the adsorption behavior of n-hexadecane on cadmium-/naphthalene-contaminated calcareous soils at various pH, and column experiments were performed to investigate the transport and retention of n-hexadecane under various flow velocity. The results showed that Freundlich model better described the adsorption behavior of n-hexadecane in all cases (R2 > 0.9). Under the condition of pH = 5, it was advantageous for soil samples to adsorb more n-hexadecane, and the maximum adsorption content followed the order of: cadmium/naphthalene-contaminated > uncontaminated soils. The transport of n-hexadecane in cadmium/naphthalene-contaminated soils at various flow velocity was well described by two kinetic sites model of Hydrus-1D with R2 > 0.9. Due to the increased electrostatic repulsion between n-hexadecane and soil particles, n-hexadecane was more easily able to breakthrough cadmium/naphthalene-contaminated soils. Compared to low flow velocity (1 mL/min), a higher concentration of n-hexadecane was determined at high flow velocity, with 67, 63, and 45% n-hexadecane in effluent from cadmium-contaminated soils, naphthalene-contaminated soils, and uncontaminated soils, respectively. These findings have important implications for the government of groundwater in calcareous soils from karst areas.


Asunto(s)
Petróleo , Contaminantes del Suelo , Cadmio/análisis , Hidrocarburos , Naftalenos , Suelo/química , Contaminantes del Suelo/análisis
12.
Org Biomol Chem ; 20(34): 6854-6862, 2022 08 31.
Artículo en Inglés | MEDLINE | ID: mdl-35971982

RESUMEN

A Rh(III)-catalyzed cascade C-H activation and cyclization of 2-aryl benzimidazoles with maleimides for the synthesis of benzimidazole-fused isoquinolines and benzimidazole-spiro isoindoles is reported. Switchable selectivity towards the formation of these two distinct products can be achieved using unsubstituted and substituted benzimidazoles at the ortho-position of the phenyl ring. Mechanistically, C-H activation followed by migratory insertion of maleimide forms a Heck-type intermediate. Unsubstituted benzimidazole undergoes aza-Michael addition to form a (4 + 2) fused product, whereas ortho-substituted phenyl benzimidazole causes steric clash to deliver a (4 + 1) spiro-adduct favorably via acid-catalyzed intramolecular annulation.


Asunto(s)
Bencimidazoles , Isoquinolinas , Catálisis , Ciclización
13.
Mycoses ; 65(11): 1001-1009, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-35713608

RESUMEN

BACKGROUND: Epidemiological knowledge of mucormycosis obtained from national population-based databases is scarce. OBJECTIVES: This study aimed to depict the disease burden and demographics of mucormycosis in Taiwan by using the Taiwan National Health Insurance Research Database (NHIRD) and those of aspergillosis as a comparator. METHODS: Data from patients with either mucormycosis or aspergillosis from 2006 to 2017 identified with the International Classification of Diseases (ICD) codes were extracted from the NHIRD. The incidence, demographics and clinical data of both diseases were analysed. RESULTS: A total of 204 patients with mucormycosis and 2270 patients with aspergillosis who were hospitalised and treated with mould-active antifungals between 2006 and 2017 were identified. The average annual incidence of aspergillosis (0.81 cases per 100,000 population [0.81/100,000]) was 11-fold higher than that of mucormycosis (0.07/100,000). A significant increase in incidence was observed for aspergillosis (from 0.48/100,000 in 2006 to 1.19/100,000 in 2017, p < .0001) but not for mucormycosis (from 0.04/100,000 in 2006 to 0.11/100,000 in 2017, p = .07). The major underlying disease identified was diabetes mellitus (60.8%) for mucormycosis and malignant neoplasms (45.9%) for aspergillosis. The all-cause 90-day mortality rate was similar between mucormycosis and aspergillosis patients (39% vs. 37%, p = .60). For mucormycosis patients, multivariate analysis revealed that posaconazole use was associated with lower in-hospital mortality (aOR 0.38; 95% CI 0.15-0.97; p = .04). CONCLUSIONS: Mucormycosis is an uncommon fungal disease in Taiwan, occurring mostly in diabetic patients. However, the incidence might be underestimated due to limited diagnostics. Continuous surveillance might aid in delineating the evolving features of mucormycosis.


Asunto(s)
Aspergilosis , Mucormicosis , Antifúngicos/uso terapéutico , Aspergilosis/tratamiento farmacológico , Costo de Enfermedad , Mortalidad Hospitalaria , Humanos , Mucormicosis/tratamiento farmacológico , Mucormicosis/epidemiología , Taiwán/epidemiología
14.
Proc Natl Acad Sci U S A ; 116(8): 3262-3267, 2019 02 19.
Artículo en Inglés | MEDLINE | ID: mdl-30728295

RESUMEN

Patterned spontaneous activity periodically displays in developing retinas termed retinal waves, essential for visual circuit refinement. In neonatal rodents, retinal waves initiate in starburst amacrine cells (SACs), propagating across retinal ganglion cells (RGCs), further through visual centers. Although these waves are shown temporally synchronized with transiently high PKA activity, the downstream PKA target important for regulating the transmission from SACs remains unidentified. A t-SNARE, synaptosome-associated protein of 25 kDa (SNAP-25/SN25), serves as a PKA substrate, implying a potential role of SN25 in regulating retinal development. Here, we examined whether SN25 in SACs could regulate wave properties and retinogeniculate projection during development. In developing SACs, overexpression of wild-type SN25b, but not the PKA-phosphodeficient mutant (SN25b-T138A), decreased the frequency and spatial correlation of wave-associated calcium transients. Overexpressing SN25b, but not SN25b-T138A, in SACs dampened spontaneous, wave-associated, postsynaptic currents in RGCs and decreased the SAC release upon augmenting the cAMP-PKA signaling. These results suggest that SN25b overexpression may inhibit the strength of transmission from SACs via PKA-mediated phosphorylation at T138. Moreover, knockdown of endogenous SN25b increased the frequency of wave-associated calcium transients, supporting the role of SN25 in restraining wave periodicity. Finally, the eye-specific segregation of retinogeniculate projection was impaired by in vivo overexpression of SN25b, but not SN25b-T138A, in SACs. These results suggest that SN25 in developing SACs dampens the spatiotemporal properties of retinal waves and limits visual circuit refinement by phosphorylation at T138. Therefore, SN25 in SACs plays a profound role in regulating visual circuit refinement.


Asunto(s)
Señalización del Calcio/genética , Retina/metabolismo , Proteína 25 Asociada a Sinaptosomas/genética , Vías Visuales/fisiología , Potenciales de Acción/genética , Células Amacrinas/metabolismo , Células Amacrinas/fisiología , Animales , Animales Recién Nacidos/genética , Animales Recién Nacidos/crecimiento & desarrollo , Desarrollo Embrionario/genética , Regulación del Desarrollo de la Expresión Génica/genética , Técnicas de Placa-Clamp , Fosforilación , Unión Proteica , Retina/crecimiento & desarrollo , Retina/fisiología , Células Ganglionares de la Retina/metabolismo , Potenciales Sinápticos/genética
15.
Neuromodulation ; 25(3): 450-460, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35088753

RESUMEN

OBJECTIVES: Major depressive disorder (MDD) is one of the most common mental illnesses. This study aims to investigate the effectiveness of transcutaneous auricular vagus nerve stimulation (taVNS) compared with the effectiveness of citalopram, a commonly used antidepressant, in patients with depression. MATERIAL AND METHODS: A total of 107 male and female patients with MDD (55 in the taVNS group and 52 in the citalopram group) were enrolled in a prospective 12-week, single-blind, comparative effectiveness trial. Participants were recruited from the outpatient departments of three hospitals in China. Participants were randomly assigned to either taVNS treatment (eight weeks, twice per day, with an additional four-week follow-up) or citalopram treatment (12 weeks, 40 mg/d). The primary outcome was the 17-item Hamilton Depression Rating Scale (HAM-D17) measured every two weeks by trained interviewers blinded to the treatment assignment. The secondary end points included the 14-item Hamilton Anxiety Scale and peripheral blood biochemical indexes. RESULTS: The HAM-D17 scores were reduced in both treatment groups; however, there was no significant group-by-time interaction (95% CI: -0.07 to 0.15, p = 0.79). Nevertheless, we found that taVNS produced a significantly higher remission rate at week four and week six than citalopram. Both treatments were associated with significant changes in the peripheral blood levels of 5-hydroxytryptamine, dopamine, γ-aminobutyric acid, and noradrenaline, but there was no significant difference between the two groups. CONCLUSION: taVNS resulted in symptom improvement similar to that of citalopram; thus, taVNS should be considered as a therapeutic option in the multidisciplinary management of MDD. Nevertheless, owing to the design of this study, it cannot be ruled out that the reduction in depression severity in both treatment groups could be a placebo effect.


Asunto(s)
Trastorno Depresivo Mayor , Estimulación Eléctrica Transcutánea del Nervio , Estimulación del Nervio Vago , Citalopram/uso terapéutico , Trastorno Depresivo Mayor/tratamiento farmacológico , Femenino , Humanos , Masculino , Estudios Prospectivos , Método Simple Ciego , Nervio Vago , Estimulación del Nervio Vago/métodos
16.
J Transl Med ; 19(1): 343, 2021 08 10.
Artículo en Inglés | MEDLINE | ID: mdl-34376209

RESUMEN

Mental disorders widely contribute to the modern global disease burden, creating a significant need for improvement of treatments. Scalp stimulation methods (such as scalp acupuncture and transcranial electrical stimulation) have shown promising results in relieving psychiatric symptoms. However, neuroimaging findings haven't been well-integrated into scalp stimulation treatments. Identifying surface brain regions associated with mental disorders would expand target selection and the potential for these interventions as treatments for mental disorders. In this study, we performed large-scale meta-analyses separately on eight common mental disorders: attention deficit hyperactivity disorder, anxiety disorder, autism spectrum disorder, bipolar disorder, compulsive disorder, major depression, post-traumatic stress disorder and schizophrenia; utilizing modern neuroimaging literature to summarize disorder-associated surface brain regions, and proposed neuroimaging-based target protocols. We found that the medial frontal gyrus, the supplementary motor area, and the dorsal lateral prefrontal cortex are commonly involved in the pathophysiology of mental disorders. The target protocols we proposed may provide new brain targets for scalp stimulation in the treatment of mental disorders, and facilitate its clinical application.


Asunto(s)
Trastorno del Espectro Autista , Trastorno Bipolar , Trastornos Mentales , Trastorno Bipolar/diagnóstico por imagen , Trastorno Bipolar/terapia , Humanos , Trastornos Mentales/diagnóstico por imagen , Trastornos Mentales/terapia , Neuroimagen , Cuero Cabelludo
17.
BMC Pregnancy Childbirth ; 21(1): 554, 2021 Aug 13.
Artículo en Inglés | MEDLINE | ID: mdl-34388966

RESUMEN

BACKGROUND: For women undergoing in vitro fertilization (IVF), the clinical benefit of embryo transfer at the blastocyst stage (Day 5) versus cleavage stage (Day 3) remains controversial. The purpose of this study is to compare the implantation rate, clinical pregnancy rate and odds of live birth of Day 3 and Day 5 embryo transfer, and more importantly, to address the issue that patients were chosen to receive either transfer protocol due to their underlying clinical characteristics, i.e., confounding by indication. METHODS: We conducted a retrospective cohort study of 9,090 IVF cycles collected by Lee Women's Hospital in Taichung, Taiwan from 1998 to 2014. We utilized the method of propensity score matching to mimic a randomized controlled trial (RCT) where each patient with Day 5 transfer was matched by another patient with Day 3 transfer with respect to other clinical characteristics. Implantation rate, clinical pregnancy rate, and odds of live birth were compared for women underwent Day 5 transfer and Day 3 transfer to estimate the causal effects. We further investigated the causal effects in subgroups by stratifying age and anti-Mullerian hormone (AMH). RESULTS: Our analyses uncovered an evidence of a significant difference in implantation rate (p=0.04) favoring Day 5 transfer, and showed that Day 3 and Day 5 transfers made no difference in both odds of live birth (p=0.27) and clinical pregnancy rate (p=0.11). With the increase of gestational age, the trend toward non-significance of embryo transfer day in our result appeared to be consistent for subgroups stratified by age and AMH, while all analyses stratified by age and AMH were not statistically significant. CONCLUSIONS: We conclude that for women without strong indications for Day 3 or Day 5 transfer, there is a small significant difference in implantation rate in favor of Day 5 transfer. However, the two protocols have indistinguishable outcomes on odds of live birth and clinical pregnancy rate.


Asunto(s)
Implantación del Embrión , Transferencia de Embrión/estadística & datos numéricos , Adulto , Implantación del Embrión/fisiología , Transferencia de Embrión/métodos , Femenino , Fertilización In Vitro/métodos , Fertilización In Vitro/estadística & datos numéricos , Humanos , Nacimiento Vivo , Embarazo , Puntaje de Propensión , Estudios Retrospectivos , Taiwán
18.
Neural Plast ; 2021: 6627507, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34257640

RESUMEN

Recently, transcranial direct current stimulation (tDCS) has been applied to relieve symptoms in individuals with autism spectrum disorder (ASD). In this prospective, parallel, single-blinded, randomized study, we investigate the modulation effect of three-week tDCS treatment at the left dorsal lateral prefrontal cortex (DLPFC) in children with ASD. 47 children with ASD were enrolled, and 40 (20 in each group) completed the study. The primary outcomes are Childhood Autism Rating Scale (CARS), Aberrant Behavior Checklist (ABC), and the Repetitive Behavior Scale-Revised (RBS-R). We found that children with ASD can tolerate three-week tDCS treatment with no serious adverse events detected. A within-group comparison showed that real tDCS, but not sham tDCS, can significantly reduce the scores of CARS, Children's Sleep Habits Questionnaire (CSHQ), and general impressions in CARS (15th item). Real tDCS produced significant score reduction in the CSHQ and in CARS general impressions when compared to the effects of sham tDCS. The pilot study suggests that three-week left DLPFC tDCS is well-tolerated and may hold potential in relieving some symptoms in children with ASD.


Asunto(s)
Trastorno del Espectro Autista/terapia , Corteza Prefrontal/fisiopatología , Estimulación Transcraneal de Corriente Directa/métodos , Trastorno del Espectro Autista/fisiopatología , Niño , Preescolar , Método Doble Ciego , Femenino , Humanos , Masculino , Proyectos Piloto , Estudios Prospectivos , Índice de Severidad de la Enfermedad , Encuestas y Cuestionarios , Resultado del Tratamiento
19.
BMC Surg ; 21(1): 49, 2021 Jan 21.
Artículo en Inglés | MEDLINE | ID: mdl-33478468

RESUMEN

BACKGROUND: To evaluate the use of a human fibrin glue (Tisseel) for minor bleeding control and approximation of ovarian defect during transvaginal natural orifice ovarian cystectomy (TNOOC) of benign and non-endometriotic ovarian tumors. METHODS: A total of 125 women with benign and non-endometriotic ovarian tumors who underwent TNOOC between May 2011 and January 2020: 54 with the aid of Tisseel and 71 with traditional suture for hemostasis and approximation of ovarian defect. Surgical outcomes such as length of surgery, operative blood loss, postoperative pain score, and postoperative hospital stay were recorded. Before and immediately (10 days) and at 6 months after the procedure, serum anti-Müllerian hormone (AMH) levels were also determined. RESULTS: Complete hemostasis and approximation of ovarian defect were achieved in all cases. No significant difference was noted in the operating time, operative blood loss, postoperative pain scores after 12, 24 and 48 h, length of postoperative stay, and baseline AMH levels between the two groups. The operation did not have a negative effect on the immediate and 6-month postoperative AMH levels in the suture group. However, the decline in the AMH levels was significant immediately after surgery in the Tisseel group, nevertheless, no significant difference was noted in the AMH levels at 6 months (3.3 vs. 1.7 mg/mL; p = 0.042, adjusted p = 0.210). CONCLUSION: The use of Tisseel in TNOOC of benign and non-endometriotic ovarian tumors without suturing the ovarian tissue is clinically safe and feasible.


Asunto(s)
Adhesivo de Tejido de Fibrina , Laparoscopía , Neoplasias Ováricas , Suturas , Adolescente , Adulto , Hormona Antimülleriana/sangre , Quistes/sangre , Quistes/cirugía , Endometriosis/cirugía , Estudios de Factibilidad , Femenino , Adhesivo de Tejido de Fibrina/administración & dosificación , Humanos , Cirugía Endoscópica por Orificios Naturales , Neoplasias Ováricas/sangre , Neoplasias Ováricas/cirugía , Estudios Prospectivos , Estudios Retrospectivos , Técnicas de Sutura , Vagina/cirugía , Adulto Joven
20.
J Formos Med Assoc ; 120(1 Pt 2): 337-345, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32505592

RESUMEN

BACKGROUND/PURPOSE: Typhoon Morakot in August 2009 caused significant damages and health and socio-economic impacts in Taiwan. Therefore, we evaluated the mental health status of adult and patients who lived in the affected area after the disaster. METHODS: An observational, prospective population-based study was conducted. Adults living in the affected area were selected as the affected population in the National Health Insurance Database from January 2008 to December 2011. Prevalence and incidence of stress-associated illnesses, such as insomnia, anxiety, depressive, adjustment and mood disorders, post-traumatic stress disorder (PTSD) in the psychiatry department were analysed after the disaster. RESULTS: A total of 897,689 adult patients were studied. Of the affected population without pre-existing chronic mental health illness, the monthly visits for stress-associated illnesses, such as insomnia, anxiety, depressive disorders and PTSD increased about twice after the disaster in elderly and non-elderly groups. Comparing to the non-elderly group, the elderly group has more increased in the incidence of insomnia (356% vs. 318% increase) and depressive disorders (308% vs. 245%) but was affected to a lesser extent increase in the anxiety (269% vs. 307%), PTSD, episodic mood disorders (82% vs. 158%), and adjustment reaction (160% vs. 202%). CONCLUSION: The mental health statuses of patients who experienced a major natural disaster deteriorated in the elderly population after the disaster. However, we still need pay more attentions on the elderly of the affected population to decrease the risk for insomnia and depressive disorders after the disaster.


Asunto(s)
Tormentas Ciclónicas , Desastres , Estrés Psicológico , Anciano , Humanos , Incidencia , Estudios Prospectivos , Estrés Fisiológico , Taiwán/epidemiología
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