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1.
J Pediatr Psychol ; 46(5): 588-598, 2021 06 03.
Artigo em Inglês | MEDLINE | ID: mdl-33594414

RESUMO

OBJECTIVE: This study identifies trajectories of parent depressive symptoms after having a child born with genital atypia due to a disorder/difference of sex development (DSD) or congenital adrenal hyperplasia (CAH) and across the first year postgenitoplasty (for parents who opted for surgery) or postbaseline (for parents who elected against surgery for their child). Hypotheses for four trajectory classes were guided by parent distress patterns previously identified among other medical conditions. METHODS: Participants included 70 mothers and 50 fathers of 71 children diagnosed with a DSD or CAH with reported moderate to high genital atypia. Parents were recruited from 11 US DSD specialty clinics within 2 years of the child's birth and prior to genitoplasty. A growth mixture model (GMM) was conducted to identify classes of parent depressive symptoms over time. RESULTS: The best fitting model was a five-class linear GMM with freely estimated intercept variance. The classes identified were termed "Resilient," "Recovery," "Chronic," "Escalating," and "Elevated Partial Recovery." Four classes have previously been identified for other pediatric illnesses; however, a fifth class was also identified. The majority of parents were classified in the "Resilient" class (67.6%). CONCLUSIONS: This study provides new knowledge about the trajectories of depressive symptoms for parents of children with DSD. Future studies are needed to identify developmental, medical, or familial predictors of these trajectories.


Assuntos
Hiperplasia Suprarrenal Congênita , Pais , Criança , Genitália , Humanos
2.
J Pediatr Psychol ; 45(9): 1053-1062, 2020 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-32929478

RESUMO

OBJECTIVE: A subset of parents of children with disorders/differences of sex development (DSD) including ambiguous genitalia experience clinically elevated levels of anxious and depressive symptoms. Research indicates that uncertainty about their child's DSD is associated with parent psychosocial distress; however, previous studies have been cross-sectional or correlational in nature. The current study is the first to examine the longitudinal trajectory of the relationship between caregiver-perceived uncertainty about their child's DSD and caregiver anxious and depressive symptoms across the first 12 months following genital surgery in young children, or if surgery was not performed, the first 12 months following study entry. METHODS: One hundred and thirteen caregivers (Mage = 32.12; 57.5% mothers; 72.6% Caucasian) of children (N = 70; Mage = 9.81 months; 65.7% female) with DSD were recruited from 12 DSD specialty clinics in the United States. Caregivers completed psychosocial measures at baseline, 6 and 12 months following genitoplasty, or study entry if parents elected not to have surgery for their child. RESULTS: Caregiver illness uncertainty and both anxious and depressive symptoms were highest at baseline and decreased over time (ps < .05). Caregiver illness uncertainty predicted symptoms of anxious and depressive symptoms across all time points (ps < .05). CONCLUSIONS: Caregivers' perceptions of uncertainty about their child's DSD are highest soon after diagnosis, and uncertainty continues to predict both anxious and depressive symptoms across time. Thus, the initial diagnostic period is a critical time for psychological assessment and intervention, with parent illness uncertainty being an important clinical target.


Assuntos
Cuidadores , Pais , Ansiedade/diagnóstico , Criança , Pré-Escolar , Estudos Transversais , Depressão/diagnóstico , Feminino , Humanos , Masculino , Incerteza
3.
J Urol ; 202(5): 1046-1051, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31268850

RESUMO

PURPOSE: We evaluated demographic, financial and support predictors of distress for parents of young children with disorders of sex development including atypical genital development, and characterized early parental experiences. This work extends our previous findings to identify those parents at risk for distress. MATERIALS AND METHODS: Participants included mothers (76) and fathers (63) of a child (78) diagnosed with disorders of sex development characterized by moderate to severe genital atypia. Parents completed a demographic questionnaire, measures of anxious and depressive symptoms, quality of life, illness uncertainty and posttraumatic stress symptoms, and rated their satisfaction with the appearance of their child's genitalia. RESULTS: Depressive and posttraumatic stress symptoms of caregivers were comparable to standardized norms while levels of anxious symptoms were below norms. A subset of parents reported clinically elevated symptoms. Overall 26% of parents reported anxious symptoms, 24% reported depressive symptoms and 17% reported posttraumatic stress symptoms. Levels of illness uncertainty were lower than those of parents of children with other chronic illnesses. Differences by parent sex emerged, with mothers reporting greater distress. Lower income, increased medical care and travel expenses, and having no other children were related to increased psychosocial distress. CONCLUSIONS: Early psychosocial screening is recommended for parents of children with disorders of sex development. Clinicians should be aware that financial burden and lack of previous parenting experience are risk factors for distress.


Assuntos
Transtornos do Desenvolvimento Sexual/psicologia , Pais/psicologia , Qualidade de Vida , Estresse Psicológico/etiologia , Adulto , Pré-Escolar , Transtornos do Desenvolvimento Sexual/complicações , Feminino , Humanos , Incidência , Lactente , Masculino , Prognóstico , Fatores de Risco , Estresse Psicológico/epidemiologia , Estresse Psicológico/psicologia , Estados Unidos/epidemiologia
4.
Arch Sex Behav ; 48(5): 1617-1624, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31144217

RESUMO

Parents of children with disorders of sex development (DSD) report significant psychological distress, including posttraumatic stress symptoms (PTSS), with mothers consistently reporting higher rates of psychological distress than fathers. However, psychological factors contributing to PTSS in both parents are not well understood. The present study sought to fill this gap in knowledge by examining PTSS and illness uncertainty, a known predictor of psychological distress, in parents of children recently diagnosed with DSD. Participants were 52 mothers (Mage = 32.55 years, SD = 5.08) and 41 fathers (Mage = 35.53 years, SD = 6.78) of 53 infants (Mage = 9.09 months, SD = 6.19) with DSD and associated atypical genital development. Participants were recruited as part of a larger, multisite study assessing parents' psychosocial response to their child's diagnosis of DSD. Parents completed measures of illness uncertainty and PTSS. Mothers reported significantly greater levels of PTSS, but not illness uncertainty, than fathers, and were more likely than fathers to report clinical levels of PTSS (21.2% compared to 7.3%). Hierarchical regression revealed that parent sex, undiagnosed or unclassified DSD status, and illness uncertainty were each associated with PTSS. The overall model accounted for 23.5% of the variance associated with PTSS. Interventions targeting illness uncertainty may be beneficial for parents of children with newly diagnosed DSD.


Assuntos
Transtornos do Desenvolvimento Sexual/psicologia , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Incerteza , Adulto , Feminino , Humanos , Lactente , Masculino , Relações Pais-Filho
5.
J Urol ; 199(1): 274-279, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28728991

RESUMO

PURPOSE: Malone antegrade continence enema has been a successful and widely used procedure for achieving fecal continence in children. We present data on the previously uninvestigated issue of patient and caregiver regret following surgery for intractable constipation and fecal incontinence. MATERIALS AND METHODS: We reviewed all patients undergoing antegrade continence enema or cecostomy creation at a single institution between 2006 and 2016. Patients and caregivers were assessed for decisional regret using the Decisional Regret Scale. Results were correlated with demographics, surgical outcomes and complications. RESULTS: A total of 81 responses (49 caregivers and 32 patients) were obtained. Mean followup was 49 months. Decisional regret was noted in 43 subjects (53%), including mild regret in 38 (47%) and moderate to severe regret in 5 (6%). No statistical difference in regret was noted based on gender, complications or performance of concomitant procedures. On regression analysis incontinence was strongly associated with decisional regret (OR 4.4, 95% CI 1.1-18.1, p <0.001) and regret increased as age at surgery increased, particularly when patients were operated on at age 13 to 15 years (OR 2.6, 95% CI 1.0-6.4 for age 13 years; OR 2.9, 95% CI 1.1-7.8 for age 14 years; OR 3.1, 95% CI 1.1-8.8 for age 15 years). CONCLUSIONS: This is the first known study describing decisional regret following surgery for fecal incontinence. Surgical factors aimed at achieving continence may be effective in decreasing postoperative regret. The finding of increased regret in teenage patients compared to younger children should be shared with families since it may impact the age at which surgery is pursued.


Assuntos
Cuidadores/psicologia , Cecostomia/efeitos adversos , Emoções , Incontinência Fecal/cirurgia , Participação do Paciente/psicologia , Complicações Pós-Operatórias/epidemiologia , Adolescente , Fatores Etários , Apêndice/cirurgia , Cateterismo/efeitos adversos , Cateterismo/métodos , Cecostomia/métodos , Criança , Tomada de Decisão Clínica/métodos , Constipação Intestinal/etiologia , Constipação Intestinal/cirurgia , Incontinência Fecal/etiologia , Feminino , Seguimentos , Humanos , Laparoscopia/efeitos adversos , Laparoscopia/métodos , Masculino , Intestino Neurogênico/complicações , Intestino Neurogênico/cirurgia , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Resultado do Tratamento
6.
N Engl J Med ; 370(25): 2367-76, 2014 06 19.
Artigo em Inglês | MEDLINE | ID: mdl-24795142

RESUMO

BACKGROUND: Children with febrile urinary tract infection commonly have vesicoureteral reflux. Because trial results have been limited and inconsistent, the use of antimicrobial prophylaxis to prevent recurrences in children with reflux remains controversial. METHODS: In this 2-year, multisite, randomized, placebo-controlled trial involving 607 children with vesicoureteral reflux that was diagnosed after a first or second febrile or symptomatic urinary tract infection, we evaluated the efficacy of trimethoprim-sulfamethoxazole prophylaxis in preventing recurrences (primary outcome). Secondary outcomes were renal scarring, treatment failure (a composite of recurrences and scarring), and antimicrobial resistance. RESULTS: Recurrent urinary tract infection developed in 39 of 302 children who received prophylaxis as compared with 72 of 305 children who received placebo (relative risk, 0.55; 95% confidence interval [CI], 0.38 to 0.78). Prophylaxis reduced the risk of recurrences by 50% (hazard ratio, 0.50; 95% CI, 0.34 to 0.74) and was particularly effective in children whose index infection was febrile (hazard ratio, 0.41; 95% CI, 0.26 to 0.64) and in those with baseline bladder and bowel dysfunction (hazard ratio, 0.21; 95% CI, 0.08 to 0.58). The occurrence of renal scarring did not differ significantly between the prophylaxis and placebo groups (11.9% and 10.2%, respectively). Among 87 children with a first recurrence caused by Escherichia coli, the proportion of isolates that were resistant to trimethoprim-sulfamethoxazole was 63% in the prophylaxis group and 19% in the placebo group. CONCLUSIONS: Among children with vesicoureteral reflux after urinary tract infection, antimicrobial prophylaxis was associated with a substantially reduced risk of recurrence but not of renal scarring. (Funded by the National Institute of Diabetes and Digestive and Kidney Diseases and others; RIVUR ClinicalTrials.gov number, NCT00405704.).


Assuntos
Anti-Infecciosos Urinários/uso terapêutico , Combinação Trimetoprima e Sulfametoxazol/uso terapêutico , Infecções Urinárias/prevenção & controle , Refluxo Vesicoureteral/tratamento farmacológico , Criança , Pré-Escolar , Método Duplo-Cego , Resistência Microbiana a Medicamentos , Feminino , Febre/prevenção & controle , Humanos , Lactente , Estimativa de Kaplan-Meier , Rim/patologia , Masculino , Prevenção Secundária , Refluxo Vesicoureteral/complicações
7.
J Urol ; 198(4): 914-920, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28504212

RESUMO

PURPOSE: We examined the psychological adjustment of parents of children born with moderate to severe genital atypia 12 months after their child underwent genitoplasty. MATERIALS AND METHODS: Parents were recruited longitudinally from a multicenter collaboration of 10 pediatric hospitals with specialty care for children with disorders/differences of sex development and/or congenital adrenal hyperplasia. Parents completed measures of depressive and anxious symptoms, illness uncertainty, quality of life, posttraumatic stress and decisional regret. RESULTS: Compared to levels of distress at baseline (before genitoplasty) and 6 months after genitoplasty, data from 25 mothers and 20 fathers indicated significant improvements in all psychological distress variables. However, a subset of parents continued endorsing clinically relevant distress. Some level of decisional regret was endorsed by 28% of parents, although the specific decision that caused regret was not specified. CONCLUSIONS: Overall the majority of parents were coping well 1 year after their child underwent genitoplasty. Level of decisional regret was related to having a bachelor's level of education, increased levels of illness uncertainty preoperatively and persistent illness uncertainty at 12 months after genitoplasty but was unrelated to postoperative complications.


Assuntos
Transtornos do Desenvolvimento Sexual/cirurgia , Ajustamento Emocional , Genitália/anormalidades , Pais/psicologia , Procedimentos de Cirurgia Plástica/efeitos adversos , Complicações Pós-Operatórias/psicologia , Adulto , Pré-Escolar , Tomada de Decisões , Transtornos do Desenvolvimento Sexual/psicologia , Feminino , Genitália/cirurgia , Procedimentos Cirúrgicos em Ginecologia/efeitos adversos , Procedimentos Cirúrgicos em Ginecologia/métodos , Humanos , Lactente , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Período Pós-Operatório , Qualidade de Vida , Procedimentos de Cirurgia Plástica/métodos , Estresse Psicológico/diagnóstico , Estresse Psicológico/psicologia , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos Masculinos/efeitos adversos , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
8.
Am J Physiol Renal Physiol ; 310(10): F1074-80, 2016 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-26911855

RESUMO

Loss of integrity of the protective impermeability barrier in the urothelium has been identified as significant in bladder dysfunction. In this study, we tested the theory that the luminal layer of glycosaminoglycans (GAG) serves as an important component of barrier function. The peptide polycation protamine sulfate (PS), 1 mg/ml, was instilled intravesically for 10 min into rat bladders. Chondroitinase ABC (ChABC), 63 IU/ml, was instilled into an additional six rats for 30 min to digest the GAG layer. Unmanipulated controls and sham-injected controls were also performed. After 24 h, the rats were euthanized, the bladders were removed, and permeability was assessed in the Ussing chamber and by diffusion of FITC-labeled dextran (4 kDa) to measure macromolecular permeability. The status of tight junctions was assessed by immunofluorescence and electron microscopy. In control and sham treated rat bladders, the transepithelial electrical resistance were means of 2.5 ± 1.1 vs. 2.6 ± 1.1 vs 1.2 ± 0.5 and 1.01 ± 0.7 kΩ·cm(2) in the PS-treated and ChABC-treated rat bladders (P = 0.0016 and P = 0.0039, respectively). Similar differences were seen in dextran permeability. Histopathology showed a mild inflammation following PS treatment, but the ChABC-treated bladders were indistinguishable from controls. Tight junctions generally remained intact. ChABC digestion alone induced bladder permeability, confirming the importance of the GAG layer to bladder barrier function and supports that loss of the GAG layer seen in bladder biopsies of interstitial cystitis patients could be a significant factor producing symptoms for at least some interstitial cystitis/painful bladder syndrome patients.


Assuntos
Cistite Intersticial/metabolismo , Modelos Animais de Doenças , Glicosaminoglicanos/fisiologia , Bexiga Urinária/metabolismo , Urotélio/metabolismo , Animais , Condroitina ABC Liase , Cistite Intersticial/patologia , Feminino , Ovariectomia , Permeabilidade , Ratos Sprague-Dawley , Junções Íntimas/metabolismo , Bexiga Urinária/patologia , Urotélio/patologia
9.
J Urol ; 196(4): 1238-43, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27181503

RESUMO

PURPOSE: Published cohorts of children with vesicoureteral reflux placed on antibiotic prophylaxis differ in baseline characteristics and methodology. These data have been combined in meta-analyses to derive treatment recommendations. We analyzed these cohorts in an attempt to understand the disparate outcomes reported. MATERIALS AND METHODS: A total of 18 studies were identified from 1987 to 2013. These series retrospectively or prospectively evaluated children with vesicoureteral reflux who were on long-term antibiotic prophylaxis. Presenting demographic data, criteria and methods of evaluation were tabulated. Outcomes were compared, specifically recurrent urinary infections and renal scarring. RESULTS: Significant differences identified in baseline characteristics included gender, circumcision status and reflux grade, and differences in methodology included evaluation of bowel and bladder dysfunction, method of urine collection, definition of urinary infection, measurement of compliance and means of identifying renal scarring. Cohorts with larger numbers of uncircumcised boys had more breakthrough urinary infections. Infection and renal scarring rates were higher in series with higher grades of reflux. Bagged urine specimens were allowed in 6 series, rendering the data suspect. Children with bowel and bladder dysfunction were excluded from 3 cohorts, and bowel and bladder dysfunction was correlated with outcome in only 1 cohort. Compliance was monitored in only 6 studies. CONCLUSIONS: Subpopulations and methodologies vary significantly in published series of children with vesicoureteral reflux on antibiotic prophylaxis. It is inappropriate to combine outcomes data from these series in a meta-analysis, which would serve to blur distinctions between these subpopulations. Broad recommendations or guidelines based on meta-analyses should be viewed with caution.


Assuntos
Antibioticoprofilaxia/métodos , Infecções Urinárias/prevenção & controle , Refluxo Vesicoureteral/complicações , Criança , Humanos , Infecções Urinárias/etiologia
10.
J Urol ; 195(3): 631-8, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26307161

RESUMO

PURPOSE: Interstitial cystitis/bladder pain syndrome is a bladder pain disorder associated with voiding symptomatology and other systemic chronic pain disorders. Currently diagnosing interstitial cystitis/bladder pain syndrome is complicated as patients present with a wide range of symptoms, physical examination findings and clinical test responses. One hypothesis is that interstitial cystitis symptoms arise from increased bladder permeability to urine solutes. This study establishes the feasibility of using contrast enhanced magnetic resonance imaging to quantify bladder permeability in patients with interstitial cystitis. MATERIALS AND METHODS: Permeability alterations in bladder urothelium were assessed by intravesical administration of the magnetic resonance imaging contrast agent Gd-DTPA (Gd-diethylenetriaminepentaacetic acid) in a small cohort of patients. Magnetic resonance imaging signal intensity in patient and control bladders was compared regionally and for entire bladders. RESULTS: Quantitative assessment of magnetic resonance imaging signal intensity indicated a significant increase in signal intensity in anterior bladder regions compared to posterior regions in patients with interstitial cystitis (p <0.01) and significant increases in signal intensity in anterior bladder regions (p <0.001). Kurtosis (shape of probability distribution) and skewness (measure of probability distribution asymmetry) were associated with contrast enhancement in total bladders in patients with interstitial cystitis vs controls (p <0.05). Regarding symptomatology interstitial cystitis cases differed significantly from controls on the SF-36®, PUF (Pelvic Pain and Urgency/Frequency) and ICPI (Interstitial Cystitis Problem Index) questionnaires with no overlap in the score range in each group. ICSI (Interstitial Cystitis Symptom Index) differed significantly but with a slight overlap in the range of scores. CONCLUSIONS: Data suggest that contrast enhanced magnetic resonance imaging provides an objective, quantifiable measurement of bladder permeability that could be used to stratify bladder pain patients and monitor therapy.


Assuntos
Meios de Contraste/farmacocinética , Cistite Intersticial/diagnóstico , Cistite Intersticial/metabolismo , Gadolínio DTPA/farmacocinética , Imageamento por Ressonância Magnética/métodos , Bexiga Urinária/metabolismo , Adulto , Estudos de Casos e Controles , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Permeabilidade
11.
Mycologia ; 108(2): 405-13, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26740540

RESUMO

Two new species from the Russulaceae, Lactifluus aurantiotinctus and Russula pallidirosea, are described from American Samoa. Based on analyses of nuc rDNA internal transcribed spacer region barcodes (ITS), L. aurantiotinctus has an affinity to subgenus Lactariopsis and strong phylogeographic ties to Papua New Guinea. The ITS data indicate that Russula pallidirosea has an affinity to subgenus Heterophyllidia and suggest that it also has phylogeographic ties to Australasia. Both species were associated with the ectomycorrhizal tree Intsia bijuga.


Assuntos
Basidiomycota/classificação , Basidiomycota/genética , Micorrizas/classificação , Micorrizas/genética , Basidiomycota/isolamento & purificação , Basidiomycota/fisiologia , Demografia , Micorrizas/isolamento & purificação , Micorrizas/fisiologia , Filogenia , Samoa
12.
J Urol ; 203(2): 412, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31738090
13.
J Urol ; 204(4): 841, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32697134
14.
J Urol ; 194(6): 1737-42, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26196734

RESUMO

PURPOSE: We examined the psychosocial characteristics of parents of children with disorders of sex development at early presentation to a disorders of sex development clinic. Parental anxiety, depression, quality of life, illness uncertainty and posttraumatic stress symptoms were assessed. Additionally we evaluated the relationship of assigned child gender to parental outcomes. MATERIALS AND METHODS: A total of 51 parents of children with ambiguous or atypical genitalia were recruited from 7 centers specializing in treatment of disorders of sex development. At initial assessment no child had undergone genitoplasty. Parents completed the Cosmetic Appearance Rating Scale, Beck Anxiety Inventory, Beck Depression Inventory, SF-36, Parent Perception of Uncertainty Scale and Impact of Event Scale-Revised. RESULTS: A large percentage of parents (54.5%) were dissatisfied with the genital appearance of their child, and a small but significant percentage reported symptoms of anxiety, depression, diminished quality of life, uncertainty and posttraumatic stress. Few gender differences emerged. CONCLUSIONS: Although many parents function well, a subset experience significant psychological distress around the time of diagnosis of a disorder of sex development in their child. Early screening to assess the need for psychosocial interventions is warranted.


Assuntos
Adaptação Psicológica , Transtornos de Ansiedade/psicologia , Transtorno Depressivo/psicologia , Transtornos do Desenvolvimento Sexual/psicologia , Pais/psicologia , Qualidade de Vida/psicologia , Transtornos de Estresse Pós-Traumáticos/psicologia , Transtornos 46, XX do Desenvolvimento Sexual/psicologia , Hiperplasia Suprarrenal Congênita/psicologia , Adulto , Transtornos de Ansiedade/diagnóstico , Transtorno Depressivo/diagnóstico , Feminino , Identidade de Gênero , Disgenesia Gonadal 46 XY/psicologia , Humanos , Cariotipagem , Masculino , Programas de Rastreamento , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Inquéritos e Questionários , Síndrome de Turner/psicologia
15.
World J Urol ; 33(8): 1119-28, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25253654

RESUMO

INTRODUCTION: Hyaluronic acid (HA), a non-sulfated glycosaminoglycan, is an essential component of the extracellular matrix (ECM). Since HA is involved in many phases of wound healing and may play a key role in tissue repair and regeneration, this study was intended to understand temporal and spatial expression of HA and HA receptors (HARs) during the course of bladder regeneration in rats. MATERIALS AND METHODS: Sprague-Dawley rats were subjected to partial cystectomy followed by augmentation with porcine small intestinal submucosal (SIS) prepared from distal sections of the small intestine. SIS-augmented bladders were harvested between postoperative days 2 and 56. RESULTS: Bladder regeneration proceeded without complications. All augmented bladders had complete urothelial lining and smooth muscle bundles by day 56 post-augmentation. Temporal and spatial distributions of HA and HARs were studied by immunohistochemistry in regenerating bladders. The strongest HA immunoreactivity was observed in the ECM on postoperative days 28 and 56. Cluster of differentiation 44 (CD44) immunoreactivity was detected in the cytoplasm of urothelial cells on day 56; and LYVE-1 immunoreactivity was exclusively limited to lymphatic vessels on days 28 and 56. CONCLUSIONS: We demonstrated that HA was synthesized throughout the course of bladder wound healing and regeneration; and HA deposition coincided with urothelial differentiation. Expression of CD44 and LYVE-1 followed the same temporal pattern as HA deposition. Therapeutic modalities through local delivery of exogenous HA to improve the outcome of SIS-mediated bladder regeneration might need to be coordinated with HAR expression in order to achieve maximal regenerative responses as opposed to fibrosis.


Assuntos
Proteínas da Matriz Extracelular/genética , Receptores de Hialuronatos/metabolismo , Ácido Hialurônico/metabolismo , Mucosa/metabolismo , RNA Mensageiro/metabolismo , Reepitelização/genética , Receptores de Superfície Celular/metabolismo , Bexiga Urinária/metabolismo , Animais , Cistectomia , Proteínas da Matriz Extracelular/metabolismo , Perfilação da Expressão Gênica , Receptores de Hialuronatos/genética , Imuno-Histoquímica , Intestino Delgado/patologia , Intestino Delgado/transplante , Mucosa/patologia , Mucosa/transplante , Ratos , Ratos Sprague-Dawley , Regeneração/genética , Suínos , Bexiga Urinária/patologia , Bexiga Urinária/cirurgia , Urotélio/metabolismo , Urotélio/patologia
16.
Mycologia ; 107(1): 149-56, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25361830

RESUMO

Hebeloma ifeleletorum is described as a new species from American Samoa. Based on analyses of ITS and combined nLSU-ITS datasets H. ifeleletorum clusters with but is distinct from described species that have been placed in the genus Anamika by some. The phylogenetic relationship of H. ifeleletorum to the genus Anamika from Asia and to other species from Australia and New Caledonia suggests that H. ifeleletorum has origins in the western Pacific.


Assuntos
Hebeloma/classificação , Hebeloma/isolamento & purificação , Filogenia , Ásia , Austrália , DNA Fúngico/genética , Hebeloma/genética , Hebeloma/crescimento & desenvolvimento , Dados de Sequência Molecular , Esporos Fúngicos/classificação , Esporos Fúngicos/genética , Esporos Fúngicos/crescimento & desenvolvimento , Esporos Fúngicos/isolamento & purificação
17.
J Urol ; 201(5): 873, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30822203
19.
Mycologia ; 106(4): 785-96, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24987131

RESUMO

Cercopemyces is described as a new genus based on collections of a newly discovered agaricoid species from the arid Cercocarpus forests of Utah and Colorado. The new genus is near Ripartitella and Cystodermella based on nLSU, rpb1 and ITS molecular sequences but distinctly different from these taxa. The ornamented basidiospores and inflated cells in the scales of the pileus surface of Cercopemyces indicate a close relationship to some species of Ripartitella, and the molecular analyses support the sister group relationship. Morphologically Cercopemyces crocodilinus is reminiscent of the genus Amanita in the field, but the inamyloid, cyanophilic, ornamented basidiospores and lack of acrophysalidic hyphae in the trama indicate otherwise. A rare eastern USA species, Ripartitella ponderosa, is transferred to Cercopemyces based on morphological and molecular data.


Assuntos
Agaricales/classificação , Rosaceae/microbiologia , Agaricales/genética , Agaricales/ultraestrutura , Sequência de Bases , Colorado , DNA Fúngico/química , DNA Fúngico/genética , DNA Ribossômico/química , DNA Ribossômico/genética , DNA Espaçador Ribossômico/química , DNA Espaçador Ribossômico/genética , Proteínas Fúngicas/genética , Hifas , Dados de Sequência Molecular , Tipagem de Sequências Multilocus , Técnicas de Tipagem Micológica , Filogenia , RNA Polimerase II/genética , Análise de Sequência de DNA , Esporos Fúngicos , Árvores , Utah
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