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1.
Brain ; 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-39088003

RESUMO

The clinical manifestations of sporadic amyotrophic lateral sclerosis (ALS) vary widely. However, the current classification of ALS is mainly based on clinical presentations, while the roles of electrophysiological and biomedical biomarkers remain limited. Herein, we investigated a group of patients with sporadic ALS and an ALS mouse model with superoxide dismutase 1 (SOD1)/G93A transgenes using nerve excitability tests (NET) to investigate axonal membrane properties and chemical precipitation, followed by enzyme-linked immunosorbent assay analysis to measure plasma misfolded protein levels. Six of 19 patients (31.6%) with sporadic ALS had elevated plasma misfolded SOD1 protein levels. In sporadic ALS patients, only those with elevated misfolded SOD1 protein levels showed an increased inward rectification in the current-threshold (I/V) curve and an increased threshold reduction in the hyperpolarizing threshold electrotonus (TE) in the NET study. Two familial ALS patients with SOD1 mutations also exhibited similar electrophysiological patterns of NET. For patients with sporadic ALS showing significantly increased inward rectification in the I/V curve, we noted an elevation in plasma misfolded SOD1 level, but not in total SOD1, misfolded C9orf72, or misfolded phosphorylated TDP43 levels. Computer simulations demonstrated that the aforementioned axonal excitability changes are likely associated with an increase in hyperpolarization-activated cyclic nucleotide-gated (HCN) current. In SOD1/G93A mice, NET also showed an increased inward rectification in the I/V curve, which could be reversed by a single injection of the HCN channel blocker, ZD7288. Daily treatment of SOD1/G93A mice with ZD7288 partially prevented the early motor function decline and spinal motor neuron death. In summary, sporadic ALS patients with elevated plasma misfolded SOD1 exhibited similar patterns of motor axonal excitability changes as familial ALS patients and ALS mice with mutant SOD1 genes, suggesting the existence of SOD1-associated sporadic ALS. The observed NET pattern of increased inward rectification in the I/V curve was attributable to an elevation in the HCN current in SOD1-associated ALS.

2.
BMC Musculoskelet Disord ; 25(1): 142, 2024 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-38355528

RESUMO

BACKGROUND: This study aims to compare the clinical outcomes and safety of a novel hand-held retractor system-assisted Wiltse TLIF with that P-TLIF and assess whether this hand-held retractor system assisted Wiltse TLIF can yield less paraspinal muscle injury. METHODS: 56 patients (P-TLIF: 26, Wiltse TLIF: 30) were included in this one year prospective controlled study. The operation time, intraoperative blood loss, postoperative drainage, mobilization time, and discharge time were recorded. The clinical outcomes were evaluated by ODI, VAS, JOA, and SF-36 scores (7 days, 3, 6, and 12 months after surgery). Paraspinal muscle injury was assessed by postoperative MRI (6 months after surgery). CK and C-reaction protein were measured pre and postoperatively, and CT or X-ray (one year postoperatively) was used to assess bony union/non-union. RESULTS: The Wiltse (study) group was associated with significantly less estimated blood loss (79.67 ± 28.59 ml vs 192.31 ± 59.48 ml, P = 0.000*), postoperative drainage (43.33 ± 27.89 ml vs 285.57 ± 123.05 ml, P = 0.000*), and shorter mobilization (4.1 ± 1.2 d vs. 3.0 ± 0.9 d, P < 0.05) and discharge times (7.7 ± 1.9 d vs. 6.1 ± 1.2 d, P = 0.002*) than the P-TLIF (control) group. Serum CK activity at 24 h postoperatively in the study group was significantly lower than in the control group (384.10 ± 141.99 U/L vs 532.76 ± 225.76 U/L, P = 0.018*). At 7 days after surgery, VAS (2.3 ± 0.6 vs 3.2 ± 0.7, P = 0.000*)and ODI scores (43.9 ± 11.9 vs 55.2 ± 12.9, P = 0.001*) were lower, while the JOA scores (18.4 ± 3.4 vs 16.3 ± 4.2, P = 0.041*) was higher in the control group than in the study group. Results observed at 3 months of follow-up were consistent with those at 7 days. After six months postoperatively, paraspinal muscle degeneration in the control group was more significant than in the study group (P = 0.008*). CONCLUSION: Our study showed that this novel hand-held retractor system assisted Wiltse approach TLIF can significantly reduce paraspinal muscle injury, postoperative drainage, and intraoperative blood loss, mobilization and discharge time, as well as yield better short-term outcomes compared to P-TLIF. TRIAL REGISTRATION: 25/09/2023 NCT06052579.


Assuntos
Vértebras Lombares , Fusão Vertebral , Humanos , Resultado do Tratamento , Estudos Prospectivos , Vértebras Lombares/diagnóstico por imagem , Vértebras Lombares/cirurgia , Fusão Vertebral/efeitos adversos , Fusão Vertebral/métodos , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Perda Sanguínea Cirúrgica , Estudos Retrospectivos
3.
Ann Plast Surg ; 92(1S Suppl 1): S60-S64, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38285998

RESUMO

INTRODUCTION: The Chang Gung Forum has been dedicated to the care of craniofacial anomalies since 2000. This annual continuing medical education program focuses on orofacial cleft and surgery-first orthognathic surgery by providing up-to-date information and management guidelines. This study explored how the Chang Gung Forum has influenced medical perspectives, decisions, and practices in a multidisciplinary craniofacial team. METHODS: Between 2000 and 2022, 20 Chang Gung Forums have been held. A questionnaire was distributed among 170 attendees who had participated in the forum more than once. The questionnaire collected information on the participants' experiences and levels of satisfaction with the educational program and whether or how it had influenced their clinical practice. RESULTS: Valid responses from 86 attendees (response rate, 50.6%) who had participated more than once were collected and analyzed. The overall satisfaction rate of the Chang Gung Forum based on the respondents' most recent visits was 4.28 ± 0.63 out of 5. Of the respondents, 90.9% acknowledged changes in their clinical practice, with modifications in surgery plans and decisions being the most notable (48.5%). In addition, comprehension increased throughout years of attending the annual forum (P < 0.001). CONCLUSION: The Chang Gung Forum has contributed markedly to the community of congenital craniofacial anomalies. The program will continue providing updated information and influencing the clinical decision-making of health care professionals.


Assuntos
Fenda Labial , Fissura Palatina , Anormalidades Craniofaciais , Humanos , Fenda Labial/cirurgia , Fissura Palatina/cirurgia , Anormalidades Craniofaciais/cirurgia , Educação Médica Continuada , Inquéritos e Questionários
4.
Clin Oral Investig ; 28(6): 331, 2024 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-38775989

RESUMO

OBJECTIVE: Segmental Le Fort I osteotomy through the cleft is a common strategy to narrow the alveolar cleft in adults. This study compared skeletal stability between single and segmental Le Fort I osteotomies in patients with unilateral cleft lip and palate (UCLP). MATERIALS AND METHODS: This retrospective analysis examined 45 adults with complete UCLP-associated class III deformities who underwent bimaxillary surgery with either single (n = 30) or segmental (n = 15) Le Fort I advancement. Cone beam computed tomography (CBCT) scans of the facial skeleton were acquired before surgery, 1-week postsurgery, and at follow-up. Measures of landmarks from the CBCT images for the two treatment groups were compared for translation (left/right, posterior/anterior, superior/inferior) and rotation (yaw, roll, pitch). RESULTS: Postsurgery, the downward movement of the maxilla was larger in the segmental group than the single group. At follow-up, the maxilla moved backward in both groups, and upward in the segmental group. The mandible moved forward and upward and rotated upward in both groups. The amount of upward movement and rotation was larger in the segmental group than the single group. CONCLUSIONS: Two years after bimaxillary surgery in patients with UCLP-associated class III deformity, greater relapse was found after segmental Le Fort I osteotomies in vertical translation of the maxilla and mandible, and pitch rotation of the mandible compared with single Le Fort I osteotomies. CLINICAL RELEVANCE: The vertical relapse of the maxilla was larger after segmental Le Fort I advancement compared with single Le Fort I advancement in clefts.


Assuntos
Fenda Labial , Fissura Palatina , Tomografia Computadorizada de Feixe Cônico , Má Oclusão Classe III de Angle , Osteotomia de Le Fort , Humanos , Tomografia Computadorizada de Feixe Cônico/métodos , Fissura Palatina/cirurgia , Fissura Palatina/diagnóstico por imagem , Fenda Labial/cirurgia , Fenda Labial/diagnóstico por imagem , Estudos Retrospectivos , Osteotomia de Le Fort/métodos , Feminino , Masculino , Má Oclusão Classe III de Angle/cirurgia , Má Oclusão Classe III de Angle/diagnóstico por imagem , Adulto , Resultado do Tratamento , Maxila/cirurgia , Maxila/diagnóstico por imagem , Maxila/anormalidades , Osteotomia Maxilar/métodos , Pontos de Referência Anatômicos , Adolescente
5.
J Formos Med Assoc ; 123(4): 461-466, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37805306

RESUMO

BACKGROUND: The rating result reflects not only the performance of the candidate but some extent of the examiner's preference. Examiner bias could be objective, which means it can't be changed by the examiner like gender, age, race, educational level, or professional experience. No study about examiner bias was performed in the dental education realm, especially in the orthodontic field. Therefore, this study aimed to figure out possible influencing factors in examiners from examples of the Taiwan Board of Orthodontist examination. METHODS: The examiner groups comprised 29 males and 21 females selected from the certificated Taiwan Board of Orthodontists. Every examiner would receive a series of lectures about rating standards before the exam. The score data were collected from 2009 to 2019. RESULTS: As for the univariate regression model of the Taiwan Board of Orthodontist examination, the experienced examiner with a certification of more than 15 years tends to rate more leniently, but female examiners tend to rate harsher. The scores would increase with the examiner's age in both the univariate regression model of self-prepared and assigned cases. CONCLUSION: As for the multivariate model of self-prepared exams, the elder and the examiner who work in private practice clinics tend to rate more leniently. As for the multivariate model of the assigned case exam, the score would be only affected by age. However, further studies are necessary to determine the direct relation among these factors.


Assuntos
Certificação , Ortodontistas , Masculino , Humanos , Feminino , Taiwan , Competência Clínica
6.
Behav Cogn Psychother ; 52(4): 414-425, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38284269

RESUMO

BACKGROUND: Adolescence is an important period for the development of the possible self. It is also a time when depression is prevalent. The cognitive theory of depression proposes that a negative view of the future is a key feature of depression. Targeting these negative thoughts about the future during cognitive behavioural therapy may be helpful in depression. However, little is known about how adolescents envisage their future (i.e. possible) self, or if the content is associated with affect. The aim of this quantitative study is to describe how adolescents describe their 'possible self' and examine the relationship between the valence of the possible self and depression in adolescents. METHOD: Adolescents (n = 584) aged 13-18 years were recruited via opportunity sampling via their schools and completed measures of depression symptoms (the Mood and Feelings Questionnaire) and the 'possible self' (a variant of the 'I Will Be' task). Possible selves were coded for content and valence. RESULTS: Despite depression severity, the most common possible selves generated by adolescents were positive and described interpersonal roles. The valence of the possible self was associated with depression severity but only accounted for 3.4% of the variance in severity. CONCLUSION: The results support the cognitive model of depression. However, adolescents with elevated symptoms of depression were able to generate positive, possible selves and therefore may remain somewhat 'hopeful' about their future despite clinically significant depression symptoms. Future-oriented treatment approaches such as cognitive behavioural therapy that focus on changing unhelpful negative future thinking may not be appropriate for this population.


Assuntos
Autoimagem , Humanos , Adolescente , Feminino , Masculino , Inquéritos e Questionários , Depressão/terapia , Depressão/psicologia , Transtorno Depressivo/terapia , Transtorno Depressivo/psicologia , Terapia Cognitivo-Comportamental/métodos , Esperança
7.
Clin Oral Investig ; 27(8): 4643-4652, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37273019

RESUMO

OBJECTIVES: Gingivoperiosteoplasty is often used for reconstruction of alveolar defects in infants with cleft lip and palate. This study aimed to examine outcomes of tertiary gingivoperiosteoplasty, which has not previously been investigated. MATERIALS AND METHODS: This prospective study included 11 adults with complete cleft lip and palate (n = 12 sites) who consecutively underwent segmental Le Fort I osteotomy and concomitant gingivoperiosteoplasty for correction of skeletal class III deformity, nasoalveolar fistula and alveolar cleft. Outcomes included clinical and radiographic evaluations of gingivoperiosteoplasty at the time of osteotomy (presence of nasoalveolar fistula, residual cleft defect and unsupported root ratio of cleft-adjacent teeth), and determination of influencing factors for the clinical success of alveolar cleft repair. Study variables included age, gender, pre-surgical orthodontic treatment and alveolar cleft width of cleft-adjacent canine and angulation between cleft-adjacent teeth before surgery and 1-week postsurgery. RESULTS: Posttreatment, no nasoalveolar fistula remained. The residual cleft defect decreased significantly (p < 0.01). The unsupported root ratio of cleft-adjacent teeth did not differ (p > 0.05); eight cleft sites reached Bergland I or II (67% success). One-week postsurgery, the minimal alveolar cleft width of cleft-adjacent canine was significantly less in the success group compared with the failed group (p = 0.01). CONCLUSIONS: Tertiary gingivoperiosteoplasty and segmental Le Fort I osteotomy decreased nasoalveolar fistulas and induced alveolar bone formation. The minimal alveolar cleft width immediately after surgery was the major influencing factor of clinical success. CLINICAL RELEVANCE: Segmental Le Fort I osteotomy with simultaneous gingivoperiosteoplasty efficaciously repairs adult alveolar clefts.


Assuntos
Fenda Labial , Fissura Palatina , Humanos , Fenda Labial/cirurgia , Fissura Palatina/cirurgia , Estudos Prospectivos , Estudos Retrospectivos , Resultado do Tratamento , Osteotomia , Osteotomia de Le Fort , Maxila/cirurgia
8.
J Craniofac Surg ; 34(1): 272-278, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35949035

RESUMO

BACKGROUND: Saddle nose deformity following naso-orbital ethmoidal (NOE) fractures remain a challenging problem for the reconstructive surgeon. Early reduction and internal fixation allow for fracture stabilization but is unable to address the problem of the depressed nasal dorsum, especially after soft tissue shrinkage. The aim of this study is to evaluate the outcome of primary rhinoplasty in patients with NOE fractures. MATERIALS AND METHODS: From 2016 to 2019, 9 patients presented to our department with NOE fractures complicated by saddle nose deformity underwent primary nasal reconstruction at the time of their fracture fixation. Life size (1:1) frontal and lateral postoperative photographs were taken. Three objective measurements were made, including the nasofrontal angle, tip projection, and radix projection. These measurements were compared between normal persons (group 1), preoperative patients (group 2), and postoperative patients (group 3). Nose aesthetic assessment was carried out via a panel assessment using a Visual Analog Scale of 5. Patient satisfaction was further assessed subjectively by the patient themselves using the Visual Analog Scale. RESULTS: When comparing group 3 to 2, a significant reduction in the nasofrontal angles was found with an accompanying increase in the radix and tip projection ( P <0.05). No statistical significance between normal persons and postprimary rhinoplasty patients was noted between groups 1 and 3. Average patient satisfaction scored 3.86±1.07 compared with 3.63±0.84 by laypersons and 4±0.77 by specialists' panel. CONCLUSION: Primary nasal reconstruction may be an alternative method for achieving optimum results following NOE fractures preventing the development of secondary saddle nose deformity with a shortened nose which may potentially be more difficult to correct.


Assuntos
Anormalidades Musculoesqueléticas , Deformidades Adquiridas Nasais , Fraturas Orbitárias , Rinoplastia , Humanos , Rinoplastia/métodos , Deformidades Adquiridas Nasais/cirurgia , Estética Dentária , Nariz/cirurgia , Fraturas Orbitárias/complicações , Fraturas Orbitárias/cirurgia , Anormalidades Musculoesqueléticas/cirurgia
9.
Int Urogynecol J ; 33(6): 1451-1461, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-34783862

RESUMO

INTRODUCTION AND HYPOTHESIS: This study examined the associated factors (i.e., obstetric and maternal-newborn factors) related to cumulative incidence of urinary incontinence and changes in urinary incontinence during pregnancy and the first year postpartum. METHODS: This prospective, longitudinal, within-subject study included 501 women who completed the Incontinence Questionnaire-Urinary Incontinence Short Form during pre-pregnancy, early pregnancy, mid-pregnancy, and late pregnancy and at five time points during the first year postpartum. Data were analyzed by multivariate logistic regression, McNemar's and analysis of variance (ANOVA) tests. RESULTS: According to the multivariate analysis, the gestational week and number of previous vaginal deliveries increased the risk of cumulative incidence of urinary incontinence (CIUI) during pregnancy (both p < 0.05). Full-time employment, higher body mass index, vaginal delivery and UI during early pregnancy and mid-pregnancy increased the risk of CIUI during the first year postpartum (all p < 0.05). CIUI tended to increase throughout the entire pregnancy (p < 0.001) and decrease from 3 to 5 days to 6 months postpartum (p = 0.028). The prevalence rates of UI at all postpartum visits were lower than those during late pregnancy (p < 0.001-0.009) but higher than those during pre-pregnancy (p < 0.001). CONCLUSIONS: The results identified the change patterns in UI and the risk factors associated with CIUI during the entire pregnancy (i.e., gestational age and number of previous vaginal deliveries) and the first year postpartum (i.e., full-time work, higher body mass index, vaginal delivery and UI during early and mid-pregnancy). Appropriate counseling should be provided to women preparing for pregnancy and during the prenatal and postpartum periods.


Assuntos
Incontinência Urinária , Estudos de Coortes , Parto Obstétrico/efeitos adversos , Feminino , Humanos , Incidência , Recém-Nascido , Parto , Período Pós-Parto , Gravidez , Estudos Prospectivos , Fatores de Risco , Incontinência Urinária/epidemiologia , Incontinência Urinária/etiologia
10.
Ann Plast Surg ; 88(1s Suppl 1): S27-S32, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-35225845

RESUMO

BACKGROUND: The concept of gingivoperiosteoplasty (GPP) in the mixed dentition stage as compared with secondary alveolar bone grafting (ABG) in management of alveolar cleft has not been much discussed upon. The authors present the experience with extensive GPP and ABG in the mixed dentition stage in complete bilateral alveolar cleft cases. METHODS: A retrospective review of nonsyndromic patients with complete bilateral alveolar cleft operated on with either GPP or ABG (iliac crest) in the mixed dentition stage with at least 1-year follow-up was performed. Dental occlusal radiographs were evaluated for level of bone gain using Bergland and Witherow scales. Statistical evaluation of clinical success and procedure-related complications was conducted using χ2 test and odds ratio. RESULTS: Twenty-four patients in the GPP group and 20 in the ABG group were comparatively studied. Clinical success rate as indicated by Bergland scales I and II (87.5% in GPP vs 82.5% in ABG; P = 0.731), complication rate (20.83% in GPP vs 30% in ABG; P = 0.484), and status of canine eruption showed no significant differences in clinical outcomes in both groups. CONCLUSIONS: The technique of extensive GPP as described by authors shows equal efficacy to secondary ABG for management of bilateral alveolar clefts during the mixed dentition period.


Assuntos
Enxerto de Osso Alveolar , Fenda Labial , Fissura Palatina , Enxerto de Osso Alveolar/métodos , Transplante Ósseo , Fenda Labial/cirurgia , Fissura Palatina/cirurgia , Dentição Mista , Humanos , Periósteo/cirurgia , Estudos Retrospectivos
11.
Clin Oral Investig ; 26(4): 3665-3677, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35094199

RESUMO

OBJECTIVES: Some adults with cleft lip and palate (CLP) require orthognathic surgery due to skeletal deformity. This prospective study aimed to (1) compare skeletal stability following bimaxillary surgery for correction of class III deformity between patients with unilateral CLP (UCLP) and bilateral CLP (BCLP), and (2) identify risk factors of stability. MATERIALS AND METHODS: Adults with CLP and skeletal class III deformities who underwent surgery-first bimaxillary surgery were divided into two groups according to cleft type: UCLP (n = 30) and BCLP (n = 30). Skeletal stability was assessed with measures from cone beam computed tomography images of the maxilla and mandible taken before treatment, 1-week and ≥ 1 year postsurgery for translation (left/right, posterior/anterior, superior/inferior) and rotation (yaw, roll, pitch); multiple regression analysis examined risk factors. RESULTS: At follow-up, the maxilla moved upwards in both groups, and backwards in the UCLP group. The mandible moved forward and upward, shifted to the cleft (deviated) side, and rotated upward in both groups. The amount of surgical advancement was a risk factor for sagittal stability in the maxilla (ß = -0.14, p < 0.05). The mandible had three risk factors for sagittal stability: age (ß = -0.23, p < 0.05), surgical team (ß = -1.83, p < 0.05), and amount of surgical setback (ß = -0.32, p = 0.001). CONCLUSIONS: Two years after bimaxillary surgery, patients with UCLP had a higher sagittal relapse of the maxilla compared with patients with BCLP, which was due to a greater surgical advancement in the patients with UCLP. CLINICAL RELEVANCE: Surgery-first bimaxillary surgery results in favorable treatment outcomes for correction of cleft-related class III deformity. Severity of jaw discrepancy and surgeons should be considered in the surgical design of overcorrection.


Assuntos
Fenda Labial , Fissura Palatina , Adulto , Cefalometria/métodos , Fenda Labial/diagnóstico por imagem , Fenda Labial/cirurgia , Fissura Palatina/diagnóstico por imagem , Fissura Palatina/cirurgia , Humanos , Maxila/cirurgia , Estudos Prospectivos
12.
J Formos Med Assoc ; 121(12): 2424-2429, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35987746

RESUMO

PURPOSE: To evaluate the changes in clinical outcome and urodynamic parameters after tailored anterior transvaginal mesh (ATVM) surgeries in a mid-term follow-up. METHODS: Between November 2011 and December 2015, women with ≥stage II pelvic organ prolapse (POP) who underwent ATVM surgeries were retrospectively reviewed. The data-reviewing timeframe was until December 2021. Clinical and urodynamic diagnoses regarding urinary symptoms were evaluated before and after the operation. RESULTS: A total of 160 women were included. Stress urinary incontinence decreased significantly after the operation (99% (159/160) vs. 43% (68/160), p < 0.01), as well as the pad weight (20.5 ± 2.7 vs. 9.4 ± 2.0, p < 0.001) and diagnosis of urodynamic stress incontinence (83% (132/160) vs. 51% (82/160), p < 0.01). Overactive bladder syndrome increased significantly after the operation (18% (29/160) vs. 28% (45/160), p = 0.03), even though the objective parameters, such as first and strong desire to void, bladder oversensitivity, and detrusor overactivity, were all improved after the operation. The pad weight was mostly improved significantly within the first postoperative 2 years. Eighteen (11%) women had global recurrent POP, and only one (0.6%) woman had true recurrence of cystocele. Twenty-four (15%) women had mesh extrusion, and two-thirds of them could be managed in an office setting. CONCLUSION: In women with advanced cystocele, the ATVM surgery provides a favorable anatomic reduction outcome with an acceptable mesh extrusion rate. The ATVM provides an anti-incontinence effect, both in subjective symptoms and objective parameters, but this effect might decline after postoperative 2 years.


Assuntos
Cistocele , Prolapso de Órgão Pélvico , Incontinência Urinária por Estresse , Feminino , Humanos , Masculino , Urodinâmica , Cistocele/cirurgia , Telas Cirúrgicas/efeitos adversos , Seguimentos , Estudos Retrospectivos , Prolapso de Órgão Pélvico/cirurgia , Incontinência Urinária por Estresse/cirurgia , Resultado do Tratamento
13.
Opt Lett ; 46(21): 5425-5428, 2021 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-34724492

RESUMO

Surface-normal electroabsorption modulators (SNEAMs) are appealing for short-reach communication systems because of their outstanding properties, such as ultrawide bandwidth and polarization-insensitive response; however, due to their small active volumes, large voltage swings are typically required to obtain the best performance. Here we propose and demonstrate a novel, to the best of our knowledge, design that dramatically reduces the voltage needed by SNEAMs and significantly increases their extinction ratio. By shrinking the multiple quantum well stack of SNEAMs to the minimum and by optimizing their reflectivity with dielectric coatings of suitable refractive index and thickness, we obtain modulators that require drive voltages of only 1-2Vpp. We show that these novel devices largely outperform conventional SNEAMs.

14.
Pharmacol Res ; 163: 105298, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33220422

RESUMO

Closely associated with visceral obesity, hepatic steatosis resulting from non-alcoholic fatty liver disease (NAFLD) exacerbates insulin resistance. Developing effective drugs to treat NAFLD is imperative. Here, we investigated the pharmacological mechanism of ugonin J (UJ) in controlling metabolic disorder and ameliorating NAFLD pathophysiology in diet-induced obese mice. The effects of UJ were assessed in 5-week-old C57BL/6 J mice fed a high-fat diet (HFD) for 12 weeks. UJ treatment averted HFD-induced body weight gain by reducing fat deposition in adipose tissues and reduced HFD-induced hyperlipidemia and hepatic inflammation. UJ also improved HFD-induced glucose tolerance and insulin resistance. Moreover, the mode of action of UJ was analyzed in palmitate (PA)-induced steatotic human HuS-E/2 hepatocytes and in hyperglycemia-simulating rat BRIN-BD11 pancreatic ß cells. In PA-induced steatotic human hepatocytes, UJ treatment promoted lipid clearance via pAMPK, pACC and CPT-1 upregulation and SREBP-1c downregulation. Interestingly, UJ upregulated Akt activity in hepatocytes and increased insulin secretion from ß cells in acute insulin secretion tests. Taken together, UJ improved adipocyte hypertrophy, hyperinsulinemia, hyperglycemia, hyperlipidemia and fat deposition in livers. UJ also reduced fatty acid accumulation by modulating key metabolic regulators. Our findings demonstrated the therapeutic potential of UJ for the treatment of NAFLD and diet-induced metabolic disorders.


Assuntos
Doenças Metabólicas/tratamento farmacológico , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Obesidade/tratamento farmacológico , Adipocinas/sangue , Tecido Adiposo/efeitos dos fármacos , Tecido Adiposo/patologia , Animais , Linhagem Celular , Células Cultivadas , Dieta Hiperlipídica , Ácidos Graxos/metabolismo , Glucose/metabolismo , Hepatócitos/efeitos dos fármacos , Hepatócitos/metabolismo , Humanos , Insulina/metabolismo , Resistência à Insulina , Células Secretoras de Insulina/efeitos dos fármacos , Células Secretoras de Insulina/metabolismo , Fígado/efeitos dos fármacos , Fígado/metabolismo , Masculino , Doenças Metabólicas/metabolismo , Camundongos Endogâmicos C57BL , Hepatopatia Gordurosa não Alcoólica/metabolismo , Obesidade/metabolismo , Ratos , Aumento de Peso/efeitos dos fármacos
15.
Int Urogynecol J ; 32(9): 2455-2464, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33835213

RESUMO

INTRODUCTION AND HYPOTHESIS: We examined obstetric and maternal-newborn factors and UI history for stress urinary incontinence (UI) and urge UI during pregnancy and the first year postpartum. METHODS: This prospective cohort study included 1447 pregnant women who underwent prenatal examinations and completed an Incontinence Questionnaire-Urinary Incontinence Short Form before pregnancy, during early, mid- and late pregnancy, and at five visits during the first year postpartum. Data were analyzed using univariate/multivariate generalized estimating equation (GEE) logistic regression analyses. RESULTS: The prevalence rates of stress UI during late pregnancy (42.5%) and urge UI at 3-5 days postpartum (10.4%) were the highest throughout pregnancy and the first year postpartum. After adjusting for covariates, gestational age increased the risks of stress UI (p < 0.001) and urge UI (p = 0.003); stress UI during pre-pregnancy, number of previous vaginal deliveries and concurrent high body mass index (BMI) increased stress UI (all p < 0.05); urge UI during pre-pregnancy and full-time work increased urge UI (both p < 0.05) during pregnancy. During the postpartum period, vaginal delivery increased stress UI (p < 0.001) and urge UI (p = 0.041); stress UI during pre-pregnancy and pregnancy, women aged ≥ 30 years and vacuum extraction/forceps delivery increased stress UI (all p < 0.05). Urge UI during early, mid- and late pregnancy increased stress UI (all p < 0.05). CONCLUSIONS: Gestational age increased stress and urge UI, while previous vaginal deliveries and high BMI increased stress UI; full-time work increased urge UI during pregnancy. Vaginal delivery increased both UIs, and vacuum/forceps delivery and maternal age increased stress UI during postpartum.


Assuntos
Período Pós-Parto , Incontinência Urinária , Feminino , Humanos , Recém-Nascido , Estudos Longitudinais , Gravidez , Estudos Prospectivos , Fatores de Risco
16.
Ann Plast Surg ; 86(2S Suppl 1): S46-S51, 2021 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-33346546

RESUMO

BACKGROUND: Midface retrusion is a common problem in patients with cleft lip and palate owing to the lack of adequate growth of the maxilla. Midface advancement surgery is a definite treatment for midface retrusion; however, the subsequent oropharyngeal airway changes might result in velopharyngeal insufficiency (VPI) in affected patients. Determining the predictors of VPI beforehand and modifying the surgical procedure would be beneficial. MATERIALS AND METHODS: A retrospective review of 42 patients with cleft lip and palate who underwent orthognathic surgery from 2013 to 2014 was performed. A total of 25 patients met the inclusion criteria and had undergone complete pre- and postsurgery videofluoroscopy, nasopharyngoscopy (NPS), and speech assessment. We compared 2 groups of patients, those who showed NPS finding changes of more than 0.1 (8 patients) and those without changes (17 patients), by measuring the distances of the contact point to the tip of the velum, gap size at maximum closure (MC) and rest, contact area length, lateral wall closure rate, closure velocity, and 2 angles (from the velum to the hard palate and genu) at MC and rest. The amount of maxillary advancement was also recorded. RESULTS: Among the 8 patients with NPS finding changes, 3 underwent Furlow palatoplasty for VPI. No significant difference was found in the amount of maxillary advancement between the groups (5.8 vs 5.7 mm). Significant differences were found in the preoperative gap size at MC and angle at the genu at MC (P = 0.035 and .012). These could be considered as the predictors before surgery. After surgery, a significant difference was found in the contact area, lateral wall closure rate, and gap size at MC (P = 0.005, 0.018, and 0.01). CONCLUSION: Videofluoroscopy is a relatively applicable method of determining dynamic changes in the velum function. By performing videofluoroscopy before midface advancement surgery in patients with cleft lip and palate, we may predict the risk of VPI and consider alternative surgical strategies.


Assuntos
Fenda Labial , Fissura Palatina , Cirurgia Ortognática , Insuficiência Velofaríngea , Fenda Labial/cirurgia , Fissura Palatina/diagnóstico por imagem , Fissura Palatina/cirurgia , Humanos , Estudos Retrospectivos , Resultado do Tratamento , Insuficiência Velofaríngea/etiologia , Insuficiência Velofaríngea/cirurgia
17.
Ann Plast Surg ; 86(2S Suppl 1): S41-S45, 2021 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-33438954

RESUMO

OBJECTIVE: This retrospective study analyzed the outcomes of patients undergoing complete or incomplete unilateral cleft lip repair using the Chang Gung technique. The goal was to compare the symmetry and change of the technique through the measurement of anthropometric points on digital photographs. METHODS: From 2010 to 2016, a total of 274 complete and incomplete cleft lip patients without other craniofacial deformities were included in the study. All included patients had a minimum 1-year follow-up with frontal view photographs taken. The vermilion area, lip width, vermilion height, lateral lip length, lip height, and Cupid's bow width of both cleft and noncleft sides were measured for all patients. The Cleft Lip Component Symmetry Index was used to determine the symmetry of the cleft and noncleft sides in both incomplete and complete cleft groups. RESULTS: A total of 152 complete and 122 incomplete cleft lip patients were included in the study. The mean Cleft Lip Component Symmetry Index values showed that the vermilion area, lip height, and Cupid's bow width were symmetric on both cleft and noncleft sides. Lip width and lateral lip length were noted to be shorter, whereas the vermilion height was thicker on the cleft side than on the noncleft side. Significant differences between the complete and incomplete cleft group measurements were found for lateral lip length and lip height, and complete cleft measurements were shorter than those for incomplete clefts. There were no significant differences in vermilion area, lip width, vermilion height, and Cupid's bow width. CONCLUSIONS: The outcome analysis showed that vermilion height reduction and modifications could be made for both complete and incomplete groups. The complete cleft lip has been found to have a significantly shorter lateral lip length and lip height, reflecting a more severe anatomical soft tissue deficiency in this group. A long-term outcome anthropometric point study may further verify the results of this surgical technique.


Assuntos
Fenda Labial , Procedimentos de Cirurgia Plástica , Fenda Labial/cirurgia , Humanos , Lactente , Lábio/cirurgia , Estudos Retrospectivos , Pele
18.
Clin Oral Investig ; 25(9): 5521-5529, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33683466

RESUMO

OBJECTIVES: Patients with cleft lip-cleft palate (CLP) often require orthodontic treatment, with or without orthognathic surgery. Patient satisfaction is the most important outcome parameter in orthodontic treatment. This study aimed to (1) determine patient satisfaction and quality of life (QoL) after orthodontic treatment and (2) identify associated factors. MATERIAL AND METHODS: This prospective cross-sectional study recruited patients with CLP who had completed orthodontic treatment at a craniofacial center in Taiwan. Participants (N=213) had received treatment for unilateral CLP (n=99), bilateral CLP (n=50), cleft lip and alveolus (n=39), and isolated cleft palate (n=25). Self-report questionnaires evaluated satisfaction with appearance and QoL; multiple regression analysis examined associated factors. Participants' expectations of treatment results were also reported. RESULTS: Participants reported moderate satisfaction with facial appearance and QoL. Satisfaction with treatment was lower or much lower than expected for 13% of participants. Treatment for bilateral CLP was associated with the lowest satisfaction with overall appearance (r = -8.123, P < 0.05); participants who had received orthognathic surgery had the highest satisfaction (r = 5.534, P < 0.05). Treatment for unilateral and bilateral CLP was associated with low QoL for smile (both P < 0.05). CONCLUSIONS: Orthodontic treatment had a positive effect on facial appearance and quality of life in patients with CLP. Type of cleft and orthognathic surgery significantly influenced satisfaction with facial appearance. CLINICAL RELEVANCE: Efforts must be taken to modify treatment strategies for patients with bilateral CLP in order to improve satisfaction with appearance following treatment.


Assuntos
Fenda Labial , Fissura Palatina , Fenda Labial/cirurgia , Fissura Palatina/cirurgia , Estudos Transversais , Humanos , Satisfação do Paciente , Estudos Prospectivos , Qualidade de Vida
19.
Scand J Psychol ; 62(1): 88-94, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33319389

RESUMO

Bullying at workplaces is a growing problem associated with several antecedents and outcomes of psychological disorders. Extant literature shows the relationship of victimization with the owning-up curriculum to confront bullying, but so far there is little research to cure the issue of bullying through ethics and there is no study to check the impact of ethical lessons and exercises in training materials to curb bullying at workplace. The current paper is based on a literature review of aggression and bullying, and chiefly addresses the HR practices in rescuing the people from peer victimization. Conceptually segregating supervisor-subordinate (vertical) and peer-peer (horizontal) bullying psychology, this paper attempts to see what possible corrective steps can be taken by senior managers, supervisors and psychologists to resolve this critical problem through interior capacities. In this paper, we have developed three propositions for conducting a future empirical investigation in connection to a cohort study. By addressing the counterproductive/deviant behavior, the present report is likely to be beneficial for psychology scientists and HR practitioners in noticing and resolving the bullying issues at the workplace for the well-being of employees.


Assuntos
Bullying/psicologia , Grupo Associado , Local de Trabalho/psicologia , Estudos de Coortes , Vítimas de Crime/psicologia , Humanos , Princípios Morais
20.
Opt Lett ; 45(16): 4472-4475, 2020 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-32796986

RESUMO

Surface-normal electroabsorption modulators (SNEAMs) have unique electro-optic modulation properties; however, their behavior and performance at high light intensity is affected by thermal nonlinearities that take place in the modulator active volume. Here we show a novel, to the best of our knowledge, approach to make SNEAMs insensitive to optical power without the use of power-hungry heaters or feedback control systems. By passively compensating for the thermo-optic dependence of the SNEAM resonant cavity, we obtain an eight-fold reduction in the wavelength shift of the SNEAM response at 4 dBm of input power. Furthermore, we show no appreciable degradation in the SNEAM eye diagram at 25 Gbit/s, when the input power is increased up to 2 dBm, which is about four times higher than in conventional SNEAMs.

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