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1.
PLoS Pathog ; 18(1): e1010224, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34990490

RESUMO

[This corrects the article DOI: 10.1371/journal.ppat.1009786.].

2.
PLoS Pathog ; 17(8): e1009786, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34370795

RESUMO

CRF19 is a recombinant form of HIV-1 subtypes D, A1 and G, which was first sampled in Cuba in 1999, but was already present there in 1980s. CRF19 was reported almost uniquely in Cuba, where it accounts for ∼25% of new HIV-positive patients and causes rapid progression to AIDS (∼3 years). We analyzed a large data set comprising ∼350 pol and env sequences sampled in Cuba over the last 15 years and ∼350 from Los Alamos database. This data set contained both CRF19 (∼315), and A1, D and G sequences. We performed and combined analyses for the three A1, G and D regions, using fast maximum likelihood approaches, including: (1) phylogeny reconstruction, (2) spatio-temporal analysis of the virus spread, and ancestral character reconstruction for (3) transmission mode and (4) drug resistance mutations (DRMs). We verified these results with a Bayesian approach. This allowed us to acquire new insights on the CRF19 origin and transmission patterns. We showed that CRF19 recombined between 1966 and 1977, most likely in Cuban community stationed in Congo region. We further investigated CRF19 spread on the Cuban province level, and discovered that the epidemic started in 1970s, most probably in Villa Clara, that it was at first carried by heterosexual transmissions, and then quickly spread in the 1980s within the "men having sex with men" (MSM) community, with multiple transmissions back to heterosexuals. The analysis of the transmission patterns of common DRMs found very few resistance transmission clusters. Our results show a very early introduction of CRF19 in Cuba, which could explain its local epidemiological success. Ignited by a major founder event, the epidemic then followed a similar pattern as other subtypes and CRFs in Cuba. The reason for the short time to AIDS remains to be understood and requires specific surveillance, in Cuba and elsewhere.


Assuntos
Transmissão de Doença Infecciosa/estatística & dados numéricos , Variação Genética , Infecções por HIV/epidemiologia , HIV-1/classificação , Filogenia , Teorema de Bayes , Cuba/epidemiologia , Feminino , Infecções por HIV/transmissão , Infecções por HIV/virologia , HIV-1/genética , HIV-1/fisiologia , Humanos , Masculino
3.
Eur J Pediatr ; 182(3): 1309-1315, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36637541

RESUMO

Most children with functional constipation (FC) improve with conventional treatments. However, a proportion of children have poor treatment outcomes. Management of intractable FC may include botulinum toxin injections, transanal irrigation, antegrade enemas, colonic resections, and in some cases sacral nerve stimulation (SNS). SNS is surgically placed, not readily available and expensive. Posterior tibial nerve stimulation (PTNS) allows transmission of electronic impulses and retrograde stimulation to the sacral nerve plexus in a portable, simple and non-invasive fashion. To assess the efficacy and safety of transcutaneous PTNS for the treatment of FC in children. Single-center, prospective interventional study. Children 4-14 years with Rome IV diagnosis of FC received ten daily PTNS (30 min/day) sessions. Electrodes placed over skin of ankle. Strength of stimulus was below pain threshold. Outcomes were assessed during treatment and 7 days after. Twenty-three subjects enrolled. Two children excluded (acute gastroenteritis, COVID-19 contact). Twenty completed the study (4-14 years), (8.4 ± 3.2 years, 71.4% female). We found significant improvement in the consistency of bowel movements (BM) (p = 0.005), fecal incontinence (FI) (p = 0.005), abdominal pain presence (p = < 0.001) and intensity (p = 0.005), and a significant for improvement in blood in stools (p = 0.037). There was 86.3% improvement in abdominal pain. 96.7% reported treatment satisfaction. Only one child required rescue therapy. CONCLUSION: We found significant improvement in stool consistency, FI, abdominal pain, and hematochezia. This suggests that transcutaneous PTNS could be a promising noninvasive treatment for FC in children. Large studies are needed. WHAT IS KNOWN: • Functional constipation is one of the most common disorders in children. • Current management of functional constipation consists of an integrative approach that includes medications, diet and behavioral strategies. WHAT IS NEW: • Posterior tibial nerve stimulation is a novel noninvasive and easy to use therapy that can improve stool consistency, fecal incontinence and blood in stools.


Assuntos
COVID-19 , Incontinência Fecal , Estimulação Elétrica Nervosa Transcutânea , Criança , Humanos , Feminino , Masculino , Incontinência Fecal/terapia , Estudos Prospectivos , Nervo Tibial/fisiologia , Resultado do Tratamento , Constipação Intestinal/terapia , Dor Abdominal , Qualidade de Vida
4.
Curr Urol Rep ; 22(3): 17, 2021 Feb 03.
Artigo em Inglês | MEDLINE | ID: mdl-33534030

RESUMO

PURPOSE OF REVIEW: To review the most recent literature citing opioid-sparing multimodal analgesic strategies used to manage perioperative pain in patients who underwent inflatable penile prosthesis (IPP) surgery and to provide the penile implant surgeon a variety of non-opioid-based pain management strategies for IPP management. RECENT FINDINGS: Interventions performed in the pre-operative, intraoperative, and post-operative arenas have all been shown to effectively lower pain scores and reduce opioid consumption. Certain surgical techniques performed during IPP surgery have helped with post-operative discomfort patients may feel after surgery. Multimodal analgesia (MMA) protocols adopted from other surgical fields and other urologic subspecialties that are implemented in IPP surgery have promising results with regard to post-operative pain control and opioid consumption. Protocols that implement a combination of refined surgical technique and multimodal analgesia offer substantial benefit to patients undergoing IPP surgery. Further work is needed to assess long-term pain control and opioid use in patients that undergo IPP surgery using these innovative strategies.


Assuntos
Analgésicos não Narcóticos/uso terapêutico , Implante Peniano , Prótese de Pênis , Analgésicos Opioides/uso terapêutico , Humanos , Masculino , Manejo da Dor/métodos , Dor Pós-Operatória/etiologia , Implante Peniano/efeitos adversos , Implante Peniano/métodos , Estudos Retrospectivos
5.
Rep Pract Oncol Radiother ; 26(6): 1045-1050, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34992879

RESUMO

BACKGROUND AND PURPOSE: Tumor treating fields (TTFields) are a non-invasive, efficacious treatment modality currently approved for supratentorial glioblastomas. Despite their ability to improve overall survival in supratentorial tumors, the current placement of arrays is limited to the supratentorial head, precluding its use in infratentorial tumors. Infratentorial malignancies are in need of new therapy modalities given their poor prognoses in both children and adults. The aim of this research is to determine whether rearrangement of TTFields may allow for management of infratentorial tumors. MATERIALS AND METHODS: Delivery of TTFields using Novocure's prototype Optune™ device human male head model was simulated based on brain MRIs from patients with brainstem gliomas to develop a novel array layout designed to extend adequate infratentorial coverage. RESULTS: Array placement on the vertex, bilateral posterolateral occiput, and superior-posterior neck achieved intensities above 1.1 V/cm (average 1.7 V/cm; maximum 2.3 V/cm) in the vertical field direction and above 1 V/cm (average 2 V/cm; maximum 2.8 V/cm) in the horizontal field direction of the infratentorium. The calculated field intensity within the simulated tumors were in the therapeutic range and demonstrated the effective delivery of TTFields to the infratentorial brain. CONCLUSIONS: Our findings suggest that rearrangement of the TTFields standard array with placement of electrodes on the vertex, bilateral posterolateral occiput, and superior-posterior neck allows for adequate electric field distribution in the infratentorium that is within the therapeutic range.

6.
Rep Pract Oncol Radiother ; 25(3): 367-375, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32322175

RESUMO

Prostate cancer is the most common malignancy and the second leading cause of cancer-related death in men. Radiotherapy is a curative option that is administered via external beam radiation, brachytherapy, or in combination. Erectile, ejaculatory and orgasm dysfunction(s) is/are known potential and common toxicities associated with prostate radiotherapy. Our multidisciplinary team of physicians and/or scientists have written a three (3) part comprehensive review of the pathogenesis and management radiation-induced sexual dysfunction. Part I reviews pertinent anatomy associated with normal sexual function and then considers the pathogenesis of prostate radiation-induced sexual toxicities. Next, our team considers the associated radiobiological (including the effects of time, dose and fractionation) and physical (treatment planning and defining a novel Organ at Risk (OAR)) components that should be minded in the context of safe radiation treatment planning. The authors identify an OAR (i.e., the prostatic plexus) and provide suggestions on how to minimize injury to said OAR during the radiation treatment planning process.

7.
Gen Comp Endocrinol ; 261: 136-147, 2018 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-29477457

RESUMO

In squamates, progesterone (P) plays a key role in the inhibition of uterine mobility during egg retention in oviparous species, and during gestation in viviparous species. The corpus luteum (CL) is the main organ responsible for the production of P; however, in some species, the CL degenerates early and the P needed for gestation maintenance should be produced in other tissues. Mabuya sp (Scincidae) is a viviparous lizard with a prolonged gestation, it produces microlecithal eggs and, consequently, has an obligate placentotrophy related with a highly complex placenta. Its CL degenerates at early stages of gestation and therefore, other sources of P should exist. The aim of this study was to determine and localize by immunohistochemistry the production of P by detection of the enzyme 3ß-Hydroxysteroid dehydrogenase (3ß-HSD) and P receptors (PR) during gestation in the ovary and placenta of Mabuya sp. Positive and negative control sections were used. The ovary of this species localizes 3ß-HSD and PR in the same tissues. The CL of the ovaries of females at early stages of gestation were positive for both molecules, whereas they did not localize from mid gestation to the end of pregnancy. Previtellogenic and vitellogenic follicles labelled for both molecules in the follicular epithelium and thecae. The placenta of Mabuya sp. demonstrated the potential for P production from mid gestation to the end of gestation in the uterine and chorionic tissues. PR were located in the uterine tissues throughout gestation, with a decrease towards its completion. Western blot analysis confirmed the presence of 3ß-HSD mainly in the ovary of early pregnant females and in the placental tissues at mid gestation stages. Therefore, the chorioallantoic placenta of Mabuya sp. has an endocrine function producing the P needed for gestation and replacing the CL from mid gestation to the end of pregnancy.


Assuntos
17-Hidroxiesteroide Desidrogenases/metabolismo , Lagartos/fisiologia , Ovário/metabolismo , Oviparidade , Receptores de Progesterona/metabolismo , Útero/metabolismo , 17-Hidroxiesteroide Desidrogenases/análise , Animais , Corpo Lúteo/metabolismo , Feminino , Imuno-Histoquímica , Lagartos/metabolismo , Ovário/química , Progesterona/metabolismo , Receptores de Progesterona/análise , Vitelogênese/fisiologia
8.
Cogn Emot ; 32(2): 389-396, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-28278737

RESUMO

In the past decade, cognitive biases and physiological arousal have each been proposed as mechanisms through which paediatric anxiety develops and is maintained over time. Preliminary studies have found associations between anxious interpretations of ambiguity, physiological arousal, and avoidance, supporting theories that link cognition, psychophysiology, and behaviour. However, little is known about the relationship between youths' resolutions of ambiguity and physiological arousal during acute stress. Such information may have important clinical implications for use of verbal self-regulation strategies and cognitive restructuring during treatments for paediatric anxiety. In this brief report, we present findings suggesting that anxious, but not typically developing, youth select avoidant goals via non-threatening resolution of ambiguity during a stressor, and that this resolution of ambiguity is accompanied by physiological reactivity (heart rate, heart rate variability, and respiratory sinus arrhythmia). We propose future empirical research on the interplay between interpretation bias, psychophysiology, and child anxiety, as well as clinical implications.


Assuntos
Transtornos de Ansiedade/fisiopatologia , Nível de Alerta/fisiologia , Frequência Cardíaca/fisiologia , Arritmia Sinusal Respiratória/fisiologia , Adolescente , Transtornos de Ansiedade/psicologia , Criança , Feminino , Humanos , Masculino
9.
Int J Urol ; 24(2): 137-143, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-27859637

RESUMO

OBJECTIVE: To evaluate the diagnostic properties of multiparametric magnetic resonance imaging in the detection, localization and characterization of prostate cancer using three-dimensional transperineal template mapping biopsy histopathology as the comparator. METHODS: A retrospective analysis of patients undergoing prostate multiparametric magnetic resonance imaging followed by three-dimensional transperineal template mapping biopsy was carried out. For imaging and pathology data, the prostate was divided in octants with the urethra being the midline. The index test properties were calculated using the biopsy histopathology as the reference test with the following end-points: any cancer, any Gleason ≥7, any Gleason ≥7 or cancer length of ≥4 mm and any Gleason ≥7 or 6 mm in any given core. The latter two definitions correspond to 0.2 and 0.5 mL of cancer volume, respectively. Diagnostic properties including sensitivity, specificity, positive and negative predictive values were calculated. RESULTS: A total of 50 patients were included in the study. A median of 55 (interquartile range 42-63) biopsy cores were obtained per patient. Of 400 prostate octants evaluated, 28.5% had prostate cancer on mapping biopsy, whereas 23% of octants were considered suspicious for cancer on imaging. Multiparametric magnetic resonance imaging negative predictive values for Gleason ≥7 and clinically significant cancers were 84-100%. Similarly, specificity ranged between 79% and 85%. Sensitivity and positive predictive value remained moderate for all the reference test definitions. CONCLUSIONS: Multiparametric magnetic resonance imaging is a useful minimally-invasive tool for detection, localization and characterization of prostate cancer. This imaging modality has high negative predictive value and specificity, and therefore it could be used to reliably rule out clinically significant cancer, obviating the multicore mapping biopsy.


Assuntos
Imageamento por Ressonância Magnética/métodos , Próstata/patologia , Neoplasias da Próstata/diagnóstico por imagem , Adulto , Idoso , Humanos , Biópsia Guiada por Imagem/métodos , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Valor Preditivo dos Testes , Estudos Prospectivos , Próstata/diagnóstico por imagem , Neoplasias da Próstata/patologia , Reprodutibilidade dos Testes , Estudos Retrospectivos , Sensibilidade e Especificidade
10.
Int J Med Microbiol ; 305(3): 392-403, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25804332

RESUMO

Helicobacter pylori from different individuals exhibits substantial genetic diversity. However, the kinetics of bacterial diversification after infection with a single strain is poorly understood. We investigated evolution of H. pylori following long-term infection in the primate stomach; Rhesus macaques were infected with H. pylori strain USU101 and then followed for 10 years. H. pylori was regularly cultured from biopsies, and single colony isolates were analyzed. At 1-year, DNA fingerprinting showed that all output isolates were identical to the input strain; however, at 5-years, different H. pylori fingerprints were observed. Microarray-based comparative genomic hybridization revealed that long term persistence of USU101 in the macaque stomach was associated with specific whole gene changes. Further detailed investigation showed that levels of the BabA protein were dramatically reduced within weeks of infection. The molecular mechanisms behind this reduction were shown to include phase variation and gene loss via intragenomic rearrangement, suggesting strong selective pressure against BabA expression in the macaque model. Notably, although there is apparently strong selective pressure against babA, babA is required for establishment of infection in this model as a strain in which babA was deleted was unable to colonize experimentally infected macaques.


Assuntos
Variação Genética , Infecções por Helicobacter/microbiologia , Helicobacter pylori/genética , Helicobacter pylori/isolamento & purificação , Adesinas Bacterianas/genética , Animais , Biópsia , Hibridização Genômica Comparativa , Impressões Digitais de DNA , DNA Bacteriano/genética , Modelos Animais de Doenças , Rearranjo Gênico , Estudos Longitudinais , Macaca mulatta , Análise em Microsséries , Seleção Genética , Estômago/microbiologia
11.
Curr Opin Cell Biol ; 20(1): 28-34, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18178072

RESUMO

Cytoskeletal intermediate filaments (IF) are organized into a dynamic nanofibrillar complex that extends throughout mammalian cells. This organization is ideally suited to their roles as response elements in the subcellular transduction of mechanical perturbations initiated at cell surfaces. IF also provide a scaffold for other types of signal transduction that together with molecular motors ferries signaling molecules from the cell periphery to the nucleus. Recent insights into their assembly highlight the importance of co-translation of their precursors, the hierarchical organization of their subunits in the formation of unit-length filaments (ULF) and the linkage of ULF into mature apolar IF. Analyses by atomic force microscopy reveal that mature IF are flexible and can be stretched to over 300% of their length without breaking, suggesting that intrafilament subunits can slide past one another when exposed to mechanical stress and strain. IF also play a role in the organization of organelles by modulating their motility and providing anchorage sites within the cytoplasm.


Assuntos
Citoplasma/metabolismo , Filamentos Intermediários/metabolismo , Animais , Humanos , Filamentos Intermediários/química , Mecanotransdução Celular , Nanotecnologia
12.
Curr Opin Urol ; 25(3): 185-90, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25768694

RESUMO

PURPOSE OF REVIEW: In the absence of whole gland treatment for prostate cancer, both active surveillance and focal therapy share the common need of requiring a more thorough, detailed and precise analysis of the biological threats within the prostatic parenchyma if one chooses to monitor or selectively eradicate only specific neoplastic targets. In addition, focal therapy utilizes active surveillance post-treatment to monitor the untreated sectors of the prostate. We aim to evaluate the current modalities available to modernize active surveillance protocols in order to distinguish patients who may be safely observed from those who require intervention. RECENT FINDINGS: Traditional active surveillance protocols by today's standards are rudimentary given the rapidly evolving technologies now available to clinicians. There is growing evidence for the adoption and use of multiparametric MRI and MRI-targeted biopsy to identify and localize prostate cancers of higher stage and grade. In addition, serum markers and prostate tissue DNA, RNA and methylation markers provide novel information that extends beyond Gleason grade to better characterize and define prostate cancer prognosis. Current active surveillance protocols should incorporate these modalities to improve patient stratification to surveillance, focal or whole gland interventions. SUMMARY: Active surveillance protocols should be modernized to include cancer localization modalities and molecular prognostic markers to improve tumour characterization and better stratify men to surveillance, focal or radical intervention.


Assuntos
Imageamento por Ressonância Magnética , Seleção de Pacientes , Vigilância da População/métodos , Antígeno Prostático Específico/sangue , Próstata/patologia , Neoplasias da Próstata/terapia , Ultrassom Focalizado Transretal de Alta Intensidade , Biomarcadores Tumorais/sangue , Protocolos Clínicos , Humanos , Masculino , Gradação de Tumores , Prognóstico , Neoplasias da Próstata/mortalidade , Neoplasias da Próstata/patologia , Medição de Risco
13.
Curr Urol Rep ; 16(6): 35, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25903803

RESUMO

Prostate cancer (PCa) care is an ever-evolving field. Research and technological developments continue to refine our definitions and management of this disease. Now, with a greater understanding of the natural history of PCa, the prevention of overtreatment has shaped a new era with the adoption of active surveillance (AS) and advancement of focal therapy (FT). Multiparametric magnetic resonance imaging (mpMRI) allows us to define, locate, and monitor cancers in a way never before possible. These capabilities combined with promising results from current prospective studies have changed the face of FT. This review presents the latest developments, current trends, and next steps in FT.


Assuntos
Neoplasias da Próstata/terapia , Biópsia , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Seleção de Pacientes , Neoplasias da Próstata/patologia , Ensaios Clínicos Controlados Aleatórios como Assunto
14.
JMIR Cancer ; 9: e42890, 2023 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-36920453

RESUMO

BACKGROUND: The human papillomavirus (HPV) is implicated in the causal pathway of cancers of the vulva, vagina, penis, cervix, anus, and oropharyngeal region. It is the most common sexually transmitted infection in the United States. Despite the documented safety and effectiveness of the HPV vaccine, rates lag behind those of other vaccines given at the same age. OBJECTIVE: Provider recommendation is identified as a robust predictor of HPV vaccine uptake, and physician-prompting is shown to increase the provision of preventive care services in general. Theoretically, providing reminders to providers should increase opportunities for providing HPV vaccine recommendations and therefore affect vaccination rates. The objective of our study was to assess the effectiveness of an electronic medical record (EMR) prompt in improving HPV vaccination rates in an academic clinic setting caring for a predominantly Hispanic border population. METHODS: We used a quasi-experimental design with a retrospective chart audit to evaluate the effect of a clinical decision prompt (CDP) on improving HPV immunization rates in different specialty settings. We introduced an EMR prompt to remind providers to recommend the HPV vaccine when seeing appropriate patients in an obstetrics and gynecology (OBGYN), pediatrics (PD), and family medicine (FM) clinic in a large multispecialty academic group located along the Texas-Mexico border. We assessed HPV vaccination rates in all the departments involved before and after introducing the prompts. Participants included male and female patients between the ages of 9 and 26 years, presenting at the clinics between January 2014 and December 2015. RESULTS: We reviewed over 2800 charts in all 3 clinics. After adjusting for age, ethnicity, race, type of insurance, preferred language, and clinic, the odds of immunization were 92% (P<.001) higher in patients after the prompt implementation of the EMR. In addition, there was an overall statistically significant increase in the overall HPV vaccination completion rates after implementing the CDP (31.96% vs 21.22%; P<.001). Again, OBGYN saw the most significant improvement in vaccination completion rates, with rates at follow-up 66.02% higher than baseline rates (P=.04). PD and FM had somewhat similar but no less impressive improvements (57.7% and 58.36%; P<.001). CONCLUSIONS: Implementing an EMR CDP improved our overall odds of HPV vaccination completion by 92%. We theorize that the decision prompts remind health care providers to discuss or recommend the HPV vaccination during clinical service delivery. CDPs in the EMR help increase HPV vaccination rates in multiple specialties and are a low-cost intervention for improving vaccination rates.

15.
HCA Healthc J Med ; 4(1): 51-55, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37426562

RESUMO

Introduction: Granulosa cell tumors (GCTs) are part of the sex cord-stromal tumors occurring with a rare incidence rate that only makes up about 2-5% of all ovarian malignancies. Case Presentation: A 28-year-old woman, gravida 2, para 1, presented with a juvenile-type granulosa cell tumor at 31 weeks gestation, which appeared as a rapidly growing mass with rupture. She under-went an exploratory laparotomy with unilateral salpingo-oophorectomy, and consequently had a successful vaginal delivery. Post-operatively she was treated with paclitaxel and carboplatin chemotherapy regimen with no evidence of recurrence after one year. Conclusion: Radical surgical management is recommended for these tumors due to the high recurrence rate, but more conservative surgical options may be considered based on the fertility goals of the patient.

16.
Nat Rev Drug Discov ; 22(6): 496-520, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37117846

RESUMO

Single-cell technologies, particularly single-cell RNA sequencing (scRNA-seq) methods, together with associated computational tools and the growing availability of public data resources, are transforming drug discovery and development. New opportunities are emerging in target identification owing to improved disease understanding through cell subtyping, and highly multiplexed functional genomics screens incorporating scRNA-seq are enhancing target credentialling and prioritization. ScRNA-seq is also aiding the selection of relevant preclinical disease models and providing new insights into drug mechanisms of action. In clinical development, scRNA-seq can inform decision-making via improved biomarker identification for patient stratification and more precise monitoring of drug response and disease progression. Here, we illustrate how scRNA-seq methods are being applied in key steps in drug discovery and development, and discuss ongoing challenges for their implementation in the pharmaceutical industry.


Assuntos
Perfilação da Expressão Gênica , Análise de Célula Única , Humanos , Análise de Sequência de RNA , Genômica , Descoberta de Drogas , RNA/genética
17.
HCA Healthc J Med ; 3(3): 203-207, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-37424612

RESUMO

Description The Accreditation Council for Graduate Medical Education (ACGME) put forth institutional requirements to implement healthcare disparity education in resident and fellow curricula in an effort to decrease these inequities. Healthcare disparities stem from many different factors. These may include access to care, insurance status, socioeconomic status, health literacy, language barriers, and the way healthcare systems function. These factors may have interactions that lead to poor health outcomes. As researchers and educators, we need to find a way to research these issues in more depth as well as teach these concepts to our resident physicians. Here, we discuss El Paso, Texas, a city located on the United States-Mexico border, which is predominately Latinx. We also discuss increased rates of diabetes, sexually transmitted diseases, and liver, stomach, and cervical cancers. Common obstacles to healthcare include language and literacy barriers, lack of transportation, and lack of healthcare professionals. We outline 4 strategies for change to address these disparities. By implementing these strategies in ACGME education for residents, healthcare disparities in the El Paso community can be addressed and eliminated.

18.
FASEB J ; 24(6): 1838-51, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20097873

RESUMO

Vimentin is used widely as a marker of the epithelial to mesenchymal transitions (EMTs) that take place during embryogenesis and metastasis, yet the functional implications of the expression of this type III intermediate filament (IF) protein are poorly understood. Using form factor analysis and quantitative Western blotting of normal, metastatic, and vimentin-null cell lines, we show that the level of expression of vimentin IFs (VIFs) correlates with mesenchymal cell shape and motile behavior. The reorganization of VIFs caused by expressing a dominant-negative mutant or by silencing vimentin with shRNA (neither of which alter microtubule or microfilament assembly) causes mesenchymal cells to adopt epithelial shapes. Following the microinjection of vimentin or transfection with vimentin cDNA, epithelial cells rapidly adopt mesenchymal shapes coincident with VIF assembly. These shape transitions are accompanied by a loss of desmosomal contacts, an increase in cell motility, and a significant increase in focal adhesion dynamics. Our results demonstrate that VIFs play a predominant role in the changes in shape, adhesion, and motility that occur during the EMT.


Assuntos
Adesão Celular/fisiologia , Movimento Celular/fisiologia , Forma Celular , Células Epiteliais/citologia , Vimentina/fisiologia , Neoplasias da Mama/patologia , Transdiferenciação Celular , Desmossomos , Feminino , Humanos , Mesoderma/citologia , RNA Interferente Pequeno/farmacologia , Células Tumorais Cultivadas
19.
Sex Med Rev ; 9(4): 593-604, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-32622885

RESUMO

INTRODUCTION: Concurrent urinary incontinence (UI) and erectile dysfunction (ED) can greatly damage a patient's quality of life. Owing to the intertwined anatomy, treatment options for one most certainly have implications on the other. OBJECTIVE: The aim of this review is to characterize and elucidate the treatment patients with postprostatectomy UI undergoing concurrent or subsequent treatment of ED. These principles can be extrapolated to all patients with UI and ED. METHODS: The literature on postprostatectomy UI treatment in the context of concurrent ED was reviewed through a Medline search. Original research using quantitative and qualitative methodologies was considered. RESULTS: The epidemiology, workup, and management of postprostatectomy UI being mindful of ongoing or future ED treatments are the main outcome measures. Owing to the intertwined anatomy, treatment options for UI and ED have implications on the other. It is essential for the surgeon to obtain an understanding of the patient's degree of bother for each process, personal preference on treatment options, and management of expectations. Surgical treatment options include a combination of the artificial urinary sphincter, sling, inflatable penile prosthesis, semi-rigid penile prosthesis, and new techniques such as the Mini-Jupette. The appropriate combinations will be determined by patient factors of dexterity, preference, degree of leakage, history of radiation, and so on. The decision of staged vs dual implant will be largely driven by the surgeons' preference, payor limitations, and comfort level. This issue is particularly challenging in redo cases where we advocate for cuff downsizing or tandem cuff before the transcorporal approach is used with the goal of preserving sexual function. CONCLUSION: The concurrent treatment of ED and UI requires thoughtful workup, meticulous attention to detail, and an armamentarium of surgical skills. It is crucial for the surgeon to understand and manage patient expectations in treating these delicate and difficult pathologies. Ajay D, Mendez MH, Wang R, et al. Treatment of Urinary Incontinence in Patients With Erectile Dysfunction. Sex Med Rev 2021;9:593-604.


Assuntos
Disfunção Erétil , Implante Peniano , Incontinência Urinária , Disfunção Erétil/cirurgia , Disfunção Erétil/terapia , Humanos , Masculino , Prostatectomia/efeitos adversos , Qualidade de Vida , Incontinência Urinária/etiologia , Incontinência Urinária/terapia
20.
Autism Res ; 14(8): 1543-1553, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34245229

RESUMO

Autism spectrum disorder (ASD) comprises a multi-dimensional set of quantitative behavioral traits expressed along a continuum in autistic and neurotypical individuals. ASD diagnosis-a dichotomous trait-is known to be highly heritable and has been used as the phenotype for most ASD genetic studies. But less is known about the heritability of autism spectrum quantitative traits, especially in adults, an important prerequisite for gene discovery. We sought to measure the heritability of many autism-relevant quantitative traits in adults high in autism spectrum traits and their extended family members. Among adults high in autism spectrum traits (n = 158) and their extended family members (n = 245), we calculated univariate and bivariate heritability estimates for 19 autism spectrum traits across several behavioral domains. We found nearly all tested autism spectrum quantitative traits to be significantly heritable (h2  = 0.24-0.79), including overall ASD traits, restricted repetitive behaviors, broader autism phenotype traits, social anxiety, and executive functioning. The degree of shared heritability varied based on method and specificity of the assessment measure. We found high shared heritability for the self-report measures and for most of the informant-report measures, with little shared heritability among performance-based cognition tasks. These findings suggest that many autism spectrum quantitative traits would be good, feasible candidates for future genetics studies, allowing for an increase in the power of autism gene discovery. Our findings suggest that the degree of shared heritability between traits depends on the assessment method (self-report vs. informant-report vs. performance-based tasks), as well as trait-specificity. LAY SUMMARY: We found that the scores from questionnaires and tasks measuring different types of behaviors and abilities related to autism spectrum disorder (ASD) were heritable (strongly influenced by gene variants passed down through a family) among autistic adults and their family members. These findings mean that these scores can be used in future studies interested in identifying specific genes and gene variants that are associated with different behaviors and abilities related with ASD.


Assuntos
Transtorno do Espectro Autista , Transtorno Autístico , Adulto , Transtorno do Espectro Autista/genética , Função Executiva , Humanos , Fenótipo , Inquéritos e Questionários
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