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1.
Cancers (Basel) ; 16(9)2024 May 02.
Artigo em Inglês | MEDLINE | ID: mdl-38730719

RESUMO

Significant health disparities exist in relation to pathogenic variants in BRCA1/2. This study aimed to better understand the barriers and facilitators to BRCA1/2 genetic testing and intrafamilial communication of risk in racially and ethnically diverse individuals. We conducted qualitative interviews with non-Hispanic White (n = 11) and Black, Indigenous, People of Color (BIPOC) individuals (n = 14) who underwent testing for pathogenic BRCA1/2 variants. We employed template analysis, case study analysis, and comparative case study analysis to examine healthcare experiences related to genetic testing as well as intrafamilial communication of risk. Applying an intersectional lens, we sought to inform more person-centered approaches to precision healthcare and help dismantle disparities in genomic healthcare. Template analysis revealed salient factors at the individual (psychosocial well-being), interpersonal/familial, and healthcare system levels. A two-part case study analysis provided insights into how race/ethnicity, cultural norms, and socioeconomic status interact with systemic and structural inequities to compound disparities. These findings underscore the need for person-centered, tailored, and culturally sensitive approaches to understanding and addressing the complexities surrounding testing and the communication of BRCA risk. Applying an intersectional lens can inform more person-centered approaches to precision healthcare and may help to surmount existing disparities.

2.
Genes (Basel) ; 14(7)2023 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-37510354

RESUMO

This study aimed to gain a deeper understanding of genomic healthcare utilization, patient activation, and intrafamilial risk communication among racially and ethnically diverse individuals tested for BRCA variants. We employed an explanatory, sequential, mixed-methods study guided by the Theory of Planned Behavior. Participants completed an online survey, including sociodemographic, medical history, and several validated instruments. A subset of participants participated in in-depth, semi-structured interviews. A total of 242 women were included in the quantitative analyses. The majority of survey participants identified as non-Hispanic white (NHW) (n = 197, 81.4%) while 45/242 (18.5%) identified as black, Indigenous, and people of color (BIPOC). The NHW participants were more likely to communicate genetic test results with healthcare providers, family, and friends than BIPOC participants (p < 0.05). BIPOC participants had lower satisfaction with testing decisions and significantly higher ratings of personal discrimination, fatalism, resilience, uncertainty, and lower patient activation scores (p < 0.05). Participants with higher education, greater satisfaction with testing decisions, and lower resilience are more likely to communicate BRCA test results with family members through the mediating effect of patient activation. Bridging disparities to ensure that genomic healthcare benefits all people may demand theory-driven, multi-level interventions targeting the individual, interpersonal, and healthcare system levels.


Assuntos
Neoplasias da Mama , Etnicidade , Participação do Paciente , Feminino , Humanos , Comunicação , Etnicidade/genética , Genômica , Aceitação pelo Paciente de Cuidados de Saúde , Neoplasias da Mama/genética , Testes Genéticos
3.
J Clin Endocrinol Metab ; 108(4): 897-908, 2023 03 10.
Artigo em Inglês | MEDLINE | ID: mdl-36268624

RESUMO

CONTEXT: Isolated hypogonadotropic hypogonadism (IHH) is phenotypically and genetically heterogeneous. OBJECTIVE: This work aimed to determine the correlation between genotypic severity with pubertal and neuroendocrine phenotypes in IHH men. METHODS: A retrospective study was conducted (1980-2020) examining olfaction (Kallmann syndrome [KS] vs normosmic IHH [nHH]), baseline testicular volume (absent vs partial puberty), neuroendocrine profiling (pulsatile vs apulsatile luteinizing hormone [LH] secretion), and genetic variants in 62 IHH-associated genes through exome sequencing (ES). RESULTS: In total, 242 men (KS: n = 131 [54%], nHH: n = 111 [46%]) were included. Men with absent puberty had significantly lower gonadotropin levels (P < .001) and were more likely to have undetectable LH (P < .001). Logistic regression showed partial puberty as a statistically significant predictor of pulsatile LH secretion (R2 = 0.71, P < .001, OR: 10.8; 95% CI, 3.6-38.6). Serum LH of 2.10 IU/L had a 95% true positive rate for predicting LH pulsatility. Genetic analyses in 204 of 242 IHH men with ES data available revealed 36 of 204 (18%) men carried protein-truncating variants (PTVs) in 12 IHH genes. Men with absent puberty and apulsatile LH were enriched for oligogenic PTVs (P < .001), with variants in ANOS1 being the predominant PTV in this genotype-phenotype association. Men with absent puberty were enriched for ANOS1 PTVs compared to partial puberty counterparts (P = .002). PTVs in other IHH genes imparted more variable reproductive phenotypic severity. CONCLUSION: Partial puberty and LH greater than or equal to 2.10 IU/L are proxies for pulsatile LH secretion. ANOS1 PTVs confer severe reproductive phenotypes. Variable phenotypic severity in the face of severe genetic variants in other IHH genes point to significant neuroendocrine plasticity of the HPG axis in IHH men.


Assuntos
Hipogonadismo , Síndrome de Kallmann , Humanos , Estudos Retrospectivos , Hipogonadismo/genética , Síndrome de Kallmann/genética , Genótipo , Fenótipo
4.
Cancers (Basel) ; 14(6)2022 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-35326645

RESUMO

This mixed-methods study sought to deepen our understanding of self-concept and experiences in balancing cancer risk/reproductive decisions after learning of BRCA+ status. First, a quantitative survey of BRCA+ women (n = 505) examined the childbearing status, risk-reducing surgery, and self-concept. At the time of testing, 307/505 (60.8%) women were of reproductive age (<40 years-old), 340/505 (67.3%) had children, and 317/505 (62.8%) had undergone risk-reducing surgery. A younger age at the time of the testing was significantly associated with the decision to have children after learning BRCA+ status or undergoing risk-reducing surgery (p < 0.001). Compared to older women, BRCA+ women of reproductive age, exhibited a more negative self-concept with significantly higher vulnerability ratings (p < 0.01). Women with a cancer diagnosis exhibited a more negative mastery ratings and worse vulnerability ratings (p < 0.01) than women without a cancer history. Compared to childless counterparts, significantly higher vulnerability ratings were observed among BRCA+ women who had children before learning their BRCA status and/or undergoing risk-reducing surgery (p < 0.001). Subsequently, a subset of women (n = 40) provided in-depth interviews to explore their experiences in decision-making. The interviews provided insights into the effects of BRCA status on decisions regarding relationships, childbearing, cancer risk management, and communicating BRCA risk to children. Integrating quantitative and qualitative findings identifies targets for tailored interventions to enhance precision health for BRCA+ women of reproductive age.

5.
Psychooncology ; 31(3): 486-495, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34582073

RESUMO

OBJECTIVE: Providing genetic counseling and genetic testing to at-risk blood relatives (cascade screening) is important for improving BRCA cancer outcomes. Intra-familial communication of risk is critical for cascade screening efforts yet relatively little is known about men's role in communicating BRCA risk. We sought to examine men's coping response to their BRCA status and intra-familial communication of risk to inform the development of tailored interventions that could promote cascade screening. METHODS: We employed a sequential mixed-methods design. First, we measured coping response (quantitative) using the Multidimensional Impact of Cancer Risk Assessment (MICRA). MICRA scores were compared between BRCA+ men, BRCA- men and BRCA+ women. Subsequently, we used template analysis to analyze qualitative interviews exploring coping and intra-familial communication of risk. The Theory of Planned Behavior (TPB) served as a guiding framework for identifying intervention targets. RESULTS: BRCA+ men (n = 36) had significantly higher levels of distress (p < 0.001), uncertainty (p < 0.001) and negative experiences (p < 0.05) compared to BRCA- male counterparts (n = 23). BRCA+ men had significantly lower distress (p < 0.001) and uncertainty (p < 0.001) than BRCA+ women (n = 406). Qualitative analysis of in-depth interviews with BRCA+ men (n = 35) identified promoters and barriers to active coping response and intra-familial communication of risk. Mapping results onto the TPB identified targets for tailoring person-centered approaches for men addressing beliefs/attitude, subjective norms, and perceived behavioral control. CONCLUSIONS: Men and women appear to have different coping responses to learning their BRCA status. Developing tailored (sex-based), theory informed interventions may help promote intra-familial communication of BRCA risk and support cascade screening.


Assuntos
Neoplasias da Mama , Neoplasias , Proteínas Supressoras de Tumor/genética , Adaptação Psicológica , Comunicação , Feminino , Predisposição Genética para Doença , Testes Genéticos/métodos , Humanos , Masculino , Mutação , Neoplasias/genética
6.
Cochrane Database Syst Rev ; 11: CD013385, 2021 11 08.
Artigo em Inglês | MEDLINE | ID: mdl-34749427

RESUMO

BACKGROUND: Decision coaching is non-directive support delivered by a healthcare provider to help patients prepare to actively participate in making a health decision. 'Healthcare providers' are considered to be all people who are engaged in actions whose primary intent is to protect and improve health (e.g. nurses, doctors, pharmacists, social workers, health support workers such as peer health workers). Little is known about the effectiveness of decision coaching. OBJECTIVES: To determine the effects of decision coaching (I) for people facing healthcare decisions for themselves or a family member (P) compared to (C) usual care or evidence-based intervention only, on outcomes (O) related to preparation for decision making, decisional needs and potential adverse effects. SEARCH METHODS: We searched the Cochrane Library (Wiley), Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE (Ovid), Embase (Ovid), PsycINFO (Ovid), CINAHL (Ebsco), Nursing and Allied Health Source (ProQuest), and Web of Science from database inception to June 2021. SELECTION CRITERIA: We included randomised controlled trials (RCTs) where the intervention was provided to adults or children preparing to make a treatment or screening healthcare decision for themselves or a family member. Decision coaching was defined as: a) delivered individually by a healthcare provider who is trained or using a protocol; and b) providing non-directive support and preparing an adult or child to participate in a healthcare decision. Comparisons included usual care or an alternate intervention. There were no language restrictions. DATA COLLECTION AND ANALYSIS: Two authors independently screened citations, assessed risk of bias, and extracted data on characteristics of the intervention(s) and outcomes. Any disagreements were resolved by discussion to reach consensus. We used the standardised mean difference (SMD) with 95% confidence intervals (CI) as the measures of treatment effect and, where possible, synthesised results using a random-effects model. If more than one study measured the same outcome using different tools, we used a random-effects model to calculate the standardised mean difference (SMD) and 95% CI. We presented outcomes in summary of findings tables and applied GRADE methods to rate the certainty of the evidence. MAIN RESULTS: Out of 12,984 citations screened, we included 28 studies of decision coaching interventions alone or in combination with evidence-based information, involving 5509 adult participants (aged 18 to 85 years; 64% female, 52% white, 33% African-American/Black; 68% post-secondary education). The studies evaluated decision coaching used for a range of healthcare decisions (e.g. treatment decisions for cancer, menopause, mental illness, advancing kidney disease; screening decisions for cancer, genetic testing). Four of the 28 studies included three comparator arms.  For decision coaching compared with usual care (n = 4 studies), we are uncertain if decision coaching compared with usual care improves any outcomes (i.e. preparation for decision making, decision self-confidence, knowledge, decision regret, anxiety) as the certainty of the evidence was very low.  For decision coaching compared with evidence-based information only (n = 4 studies), there is low certainty-evidence that participants exposed to decision coaching may have little or no change in knowledge (SMD -0.23, 95% CI: -0.50 to 0.04; 3 studies, 406 participants). There is low certainty-evidence that participants exposed to decision coaching may have little or no change in anxiety, compared with evidence-based information. We are uncertain if decision coaching compared with evidence-based information improves other outcomes (i.e. decision self-confidence, feeling uninformed) as the certainty of the evidence was very low. For decision coaching plus evidence-based information compared with usual care (n = 17 studies), there is low certainty-evidence that participants may have improved knowledge (SMD 9.3, 95% CI: 6.6 to 12.1; 5 studies, 1073 participants). We are uncertain if decision coaching plus evidence-based information compared with usual care improves other outcomes (i.e. preparation for decision making, decision self-confidence, feeling uninformed, unclear values, feeling unsupported, decision regret, anxiety) as the certainty of the evidence was very low. For decision coaching plus evidence-based information compared with evidence-based information only (n = 7 studies), we are uncertain if decision coaching plus evidence-based information compared with evidence-based information only improves any outcomes (i.e. feeling uninformed, unclear values, feeling unsupported, knowledge, anxiety) as the certainty of the evidence was very low. AUTHORS' CONCLUSIONS: Decision coaching may improve participants' knowledge when used with evidence-based information. Our findings do not indicate any significant adverse effects (e.g. decision regret, anxiety) with the use of decision coaching. It is not possible to establish strong conclusions for other outcomes. It is unclear if decision coaching always needs to be paired with evidence-informed information. Further research is needed to establish the effectiveness of decision coaching for a broader range of outcomes.


Assuntos
Tutoria , Adulto , Ansiedade , Criança , Família , Feminino , Pessoal de Saúde/educação , Humanos , Masculino , Participação do Paciente
7.
Genes (Basel) ; 12(6)2021 06 20.
Artigo em Inglês | MEDLINE | ID: mdl-34202935

RESUMO

Genetic testing is increasingly part of routine clinical care. However, testing decisions may be characterized by regret as findings also implicate blood relatives. It is not known if genetic testing decisions are affected by the way information is presented (i.e., framing effects). We employed a randomized factorial design to examine framing effects on hypothetical genetic testing scenarios (common, life-threatening disease and rare, life-altering disease). Participants (n = 1012) received one of six decision frames: choice, default (n = 2; opt-in, opt-out), or enhanced choice (n = 3, based on the Theory of Planned Behavior). We compared testing decision, satisfaction, regret, and decision cognitions across decision frames and between scenarios. Participants randomized to 'choice' were least likely to opt for genetic testing compared with default and enhanced choice frames (78% vs. 83-91%, p < 0.05). Neither satisfaction nor regret differed across frames. Perceived autonomy (behavioral control) predicted satisfaction (B = 0.085, p < 0.001) while lack of control predicted regret (B = 0.346, p < 0.001). Opting for genetic testing did not differ between disease scenarios (p = 0.23). Results suggest framing can nudge individuals towards opting for genetic testing. These findings have important implications for individual self-determination in the genomic era. Similarities between scenarios with disparate disease trajectories point to possible modular approaches for web-based decisional support.


Assuntos
Comportamento de Escolha , Aconselhamento Genético/psicologia , Testes Genéticos , Síndrome Hereditária de Câncer de Mama e Ovário/genética , Hipogonadismo/genética , Preferência do Paciente , Adulto , Feminino , Síndrome Hereditária de Câncer de Mama e Ovário/diagnóstico , Síndrome Hereditária de Câncer de Mama e Ovário/psicologia , Humanos , Hipogonadismo/diagnóstico , Hipogonadismo/psicologia , Masculino , Pessoa de Meia-Idade , Educação de Pacientes como Assunto
8.
Neuroendocrinology ; 111(1-2): 99-114, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32074614

RESUMO

BACKGROUND: Two loci (CHD7 and SOX10) underlying Kallmann syndrome (KS) were discovered through clinical and genetic analysis of CHARGE and Waardenburg syndromes, conditions that include congenital anosmia caused by olfactory bulb (CA/OBs) defects and congenital hypogonadotropic hypogonadism (CHH). We hypothesized that other candidate genes for KS could be discovered by analyzing rare syndromes presenting with these signs. Study Design, Size, Duration: We first investigated a family with Gorlin-Goltz syndrome (GGS) in which affected members exhibited clinical signs suggesting KS. Participants/Materials, Methods: Proband and family members underwent detailed clinical assessment. The proband received detailed neuroendocrine evaluation. Genetic analyses included sequencing the PTCH1 gene at diagnosis, followed by exome analyses of causative or candidate KS/CHH genes, in order to exclude contribution to the phenotypes of additional mutations. Exome analyses in additional 124 patients with KS/CHH probands with no additional GGS signs. RESULTS: The proband exhibited CA, absent OBs on magnetic resonance imaging, and had CHH with unilateral cryptorchidism, consistent with KS. Pulsatile Gonadotropin-releasing hormone (GnRH) therapy normalized serum gonadotropins and increased testosterone levels, supporting GnRH deficiency. Genetic studies revealed 3 affected family members harbor a novel mutation of PTCH1 (c.838G> T; p.Glu280*). This unreported nonsense deleterious mutation results in either a putative truncated Ptch1 protein or in an absence of translated Ptch1 protein related to nonsense mediated messenger RNA decay. This heterozygous mutation cosegregates in the pedigree with GGS and CA with OBs aplasia/hypoplasia and with CHH in the proband suggesting a genetic linkage and an autosomal dominant mode of inheritance. No pathogenic rare variants in other KS/CHH genes cosegregated with these phenotypes. In additional 124 KS/CHH patients, 3 additional heterozygous, rare missense variants were found and predicted in silico to be damaging: p.Ser1203Arg, p.Arg1192Ser, and p.Ile108Met. CONCLUSION: This family suggests that the 2 main signs of KS can be included in GGS associated with PTCH1 mutations. Our data combined with mice models suggest that PTCH1 could be a novel candidate gene for KS/CHH and reinforce the role of the Hedgehog signaling pathway in pathophysiology of KS and GnRH neuron migration.


Assuntos
Anosmia/genética , Síndrome do Nevo Basocelular/diagnóstico , Síndrome do Nevo Basocelular/genética , Hipogonadismo/genética , Síndrome de Kallmann/diagnóstico , Síndrome de Kallmann/genética , Receptor Patched-1/genética , Adulto , Estudos de Coortes , Feminino , Humanos , Masculino , Mutação
9.
Cancers (Basel) ; 12(8)2020 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-32824510

RESUMO

Pathogenic germline variants in Breast Cancer 1/2 (BRCA) genes confer increased cancer risk. Understanding BRCA status/risk can enable family cascade screening and improve cancer outcomes. However, more than half of the families do not communicate family cancer history/BRCA status, and cancer outcomes differ according to parent of origin (i.e., maternally vs. paternally inherited pathogenic variant). We aimed to explore communication patterns around family cancer history/BRCA risk according to parent of origin. We analyzed qualitative interviews (n = 97) using template analysis and employed the Theory of Planned Behavior (TPB) to identify interventions to improve communication. Interviews revealed sub-codes of 'male stoicism and 'paternal guilt' that impede family communication (template code: gender scripting). Conversely, 'fatherly protection' and 'female camaraderie' promote communication of risk. The template code 'dysfunctional family communication' was contextualized by several sub-codes ('harmful negligence', 'intra-family ignorance' and 'active withdrawal of support') emerging from interview data. Sub-codes 'medical misconceptions' and 'medical minimizing' deepened our understanding of the template code 'medical biases'. Importantly, sub-codes of 'informed physicians' and 'trust in healthcare' mitigated bias. Mapping findings to the TPB identified variables to tailor interventions aimed at enhancing family communication of risk and promoting cascade screening. In conclusion, these data provide empirical evidence of the human factors impeding communication of family BRCA risk. Tailored, theory-informed interventions merit consideration for overcoming blocked communication and improving cascade screening uptake.

10.
Hum Reprod ; 35(10): 2312-2322, 2020 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-32862222

RESUMO

STUDY QUESTION: Are GnRH tests and serum inhibin B levels sufficiently discriminating to distinguish transient constitutional delay of growth and puberty (CDGP) from congenital hypogonadotropic hypogonadism (CHH) that affects reproductive health for life? SUMMARY ANSWER: Both parameters lack the specificity to discriminate CDGP from CHH. WHAT IS KNOWN ALREADY: GnRH tests and inhibin B levels have been proposed to differentiate CDGP from CHH. However, their diagnostic accuracies have been hampered by the small numbers of CHH included and enrichment of CHH patients with more severe forms. STUDY DESIGN, SIZE, DURATION: The aim of this study was to assess the diagnostic performance of GnRH tests and inhibin B measurements in a large cohort of CHH male patients with the whole reproductive spectrum. From 2008 to 2018, 232 males were assessed: 127 with CHH, 74 with CDGP and 31 healthy controls. PARTICIPANTS/MATERIALS, SETTING, METHODS: The participants were enrolled in two French academic referral centres. The following measurements were taken: testicular volume (TV), serum testosterone, inhibin B, LH and FSH, both at baseline and following the GnRH test. MAIN RESULTS AND THE ROLE OF CHANCE: Among CHH patients, the LH response to the GnRH test was very variable and correlated with TV. Among CDGP patients, the LH peak was also variable and 47% of CHH patients had peak LH levels overlapping with the CDGP group. However, no patients with CDGP had an LH peak below 4.0 IU/l, while 53% CHH patients had LH peak below this threshold. Among CHH patients, inhibin B levels were also variable and correlated with TV and peak LH. Inhibin B was significantly lower in CHH patients than in CDGP patients but 50% of CHH values overlapped with CDGP values. Interestingly, all patients with CDGP had inhibin B levels above 35 pg/ml but 50% of CHH patients also had levels above this threshold. LIMITATIONS, REASONS FOR CAUTION: As CHH is very rare, an international study would be necessary to recruit a larger CHH cohort and consolidate the conclusion reached here. WIDER IMPLICATIONS OF THE FINDINGS: Peak LH and basal inhibin B levels are variable in both CHH and CDGP with significant overlap. Both parameters lack specificity and sensitivity to efficiently discriminate CHH from CDGP. This reflects the varying degree of gonadotropin deficiency inherent to CHH. These two diagnostic procedures may misdiagnose partial forms of isolated (non-syndromic) CHH, allowing them to be erroneously considered as CDGP. STUDY FUNDING/COMPETING INTEREST(S): This study was funded by Agence Française de Lutte contre le Dopage: Grant Hypoproteo AFLD-10 (to J.Y.); Agence Nationale de la Recherche (ANR): Grant ANR-09-GENO-017-01 (to J.Y.); European Cooperation in Science and Technology, COST Action BM1105; Programme Hospitalier de Recherche Clinique (PHRC), French Ministry of Health: PHRC-2009 HYPO-PROTEO (to J.Y.); and Programme Hospitalier de Recherche Clinique (PHRC) "Variété", French Ministry of Health, N° P081216/IDRCB 2009-A00892-55 (to P.C.). There are no competing interests. TRIAL REGISTRATION NUMBER: N/A.


Assuntos
Hormônio Liberador de Gonadotropina , Hipogonadismo , Hormônio Foliculoestimulante , Humanos , Hipogonadismo/diagnóstico , Inibinas , Masculino , Puberdade , Testosterona
11.
Clin Imaging ; 68: 14-19, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32562921

RESUMO

PURPOSE: To retrospectively investigate the radiological presentations of HLRCC-associated renal tumors to facilitate accurate lesion characterization and compare these presentations with simple cysts and characteristics of other subtypes of renal cell carcinoma (RCC) as reported in the literature. METHODS: The MRI and CT imaging characteristics of 39 pathologically confirmed lesions from 30 patients (20 male, 10 female) with HLRCC syndrome were evaluated by two radiologists. Patients had an average age at diagnosis of 43.8 ± 13.1 years. Lesion characteristics including laterality, homogeneity, diameter (cm), nodularity, septations, T1 and T2 signal intensity, enhancement, and restricted diffusion were recorded. Imaging characteristics of the lesions were further compared to characteristics of benign simple cysts surgically removed at the same time point. RESULTS: The examined lesions had a mean diameter of 5.06 ± 3.80 cm, an average growth rate of 2.91 × 10-3 cm/day and an estimated annual growth rate of 1.06 cm/year. 50% of lesions demonstrated nodularity, 65% were mostly T2-hyperintense, 83% demonstrated restricted diffusion in solid portions of the lesions, and 65% had well-defined margins. 76% of patients demonstrated extra-renal manifestations, 53% lymphadenopathy, and 43% distant metastasis. CONCLUSIONS: Our analysis confirmed that while HLRCC-associated renal lesions demonstrate diversity in imaging presentations, the majority are unilateral and solitary, T2-hyperintense, heterogeneous with well-defined margins, and frequently demonstrate restricted diffusion and nodularity.


Assuntos
Carcinoma de Células Renais , Neoplasias Renais , Leiomiomatose , Síndromes Neoplásicas Hereditárias , Adulto , Carcinoma de Células Renais/diagnóstico por imagem , Carcinoma de Células Renais/cirurgia , Feminino , Humanos , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/cirurgia , Leiomiomatose/diagnóstico por imagem , Leiomiomatose/cirurgia , Masculino , Pessoa de Meia-Idade , Síndromes Neoplásicas Hereditárias/diagnóstico por imagem , Estudos Retrospectivos
12.
J Clin Endocrinol Metab ; 105(5)2020 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-32034419

RESUMO

CONTEXT: The reproductive axis is controlled by a network of gonadotropin-releasing hormone (GnRH) neurons born in the primitive nose that migrate to the hypothalamus alongside axons of the olfactory system. The observation that congenital anosmia (inability to smell) is often associated with GnRH deficiency in humans led to the prevailing view that GnRH neurons depend on olfactory structures to reach the brain, but this hypothesis has not been confirmed. OBJECTIVE: The objective of this work is to determine the potential for normal reproductive function in the setting of completely absent internal and external olfactory structures. METHODS: We conducted comprehensive phenotyping studies in 11 patients with congenital arhinia. These studies were augmented by review of medical records and study questionnaires in another 40 international patients. RESULTS: All male patients demonstrated clinical and/or biochemical signs of GnRH deficiency, and the 5 men studied in person had no luteinizing hormone (LH) pulses, suggesting absent GnRH activity. The 6 women studied in person also had apulsatile LH profiles, yet 3 had spontaneous breast development and 2 women (studied from afar) had normal breast development and menstrual cycles, suggesting a fully intact reproductive axis. Administration of pulsatile GnRH to 2 GnRH-deficient patients revealed normal pituitary responsiveness but gonadal failure in the male patient. CONCLUSIONS: Patients with arhinia teach us that the GnRH neuron, a key gatekeeper of the reproductive axis, is associated with but may not depend on olfactory structures for normal migration and function, and more broadly, illustrate the power of extreme human phenotypes in answering fundamental questions about human embryology.


Assuntos
Hormônio Liberador de Gonadotropina/metabolismo , Neurônios/fisiologia , Nariz/anormalidades , Transtornos do Olfato/congênito , Anormalidades Múltiplas/genética , Anormalidades Múltiplas/metabolismo , Anormalidades Múltiplas/patologia , Anormalidades Múltiplas/fisiopatologia , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Hormônio Foliculoestimulante/sangue , Hormônio Liberador de Gonadotropina/deficiência , Gônadas/anormalidades , Gônadas/patologia , Humanos , Hipogonadismo/genética , Hipogonadismo/metabolismo , Hipogonadismo/patologia , Hipogonadismo/fisiopatologia , Lactente , Hormônio Luteinizante/sangue , Masculino , Pessoa de Meia-Idade , Neurogênese/fisiologia , Neurônios/metabolismo , Transtornos do Olfato/genética , Transtornos do Olfato/metabolismo , Transtornos do Olfato/fisiopatologia , Condutos Olfatórios/metabolismo , Condutos Olfatórios/patologia , Tamanho do Órgão , Adulto Jovem
13.
Breast J ; 26(4): 734-738, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31659791

RESUMO

We conducted a mixed-method study to examine coping response in BRCA+ women based on parent of origin (maternally vs paternally inherited BRCA mutation). Quantitative findings (n = 408) revealed paternally inherited cases had genetic testing later and were more likely to have a cancer diagnosis. Having a maternally inherited mutation was the strongest predictor of proactive risk management response. Qualitative interviews (n = 56) identified proactive responses among maternally inherited cases compared to reactive responses in paternally inherited cases. Findings underscore the importance of unbiased pedigree analysis to determine cancer risk. Women with paternally inherited BRCA mutations may benefit from additional psychosocial support.


Assuntos
Neoplasias da Mama , Genes BRCA2 , Neoplasias da Mama/genética , Feminino , Predisposição Genética para Doença , Testes Genéticos , Humanos , Mutação , Gestão de Riscos
14.
Eur J Endocrinol ; 182(2): 185, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31770102

RESUMO

CONTEXT: Congenital hypogonadotropic hypogonadism/Kallmann syndrome (CHH/KS) is a rare condition characterized by gonadotropin deficiency and pubertal failure. Adult height (AH) in patients with CHH/KS has not been well studied. OBJECTIVE: To assess AH in a large cohort of patients with CHH/KS. PATIENTS: A total of 219 patients (165 males, 54 females). Parents and siblings were included. METHODS: AH was assessed in patients and family members. AH was compared to the general French population, mid parental target height (TH) and between patients and same-sex siblings. Delta height (∆H) was considered as the difference between AH and parental TH. ∆H was compared between patients and siblings, normosmic CHH and KS (CHH with anosmia/hyposmia), and according to underlying genetic defect. We examined the correlations between ∆H and age at diagnosis and therapeutically induced individual statural gain. RESULTS: Mean AH in men and women with CHH/KS was greater than that in the French general population. Patients of both sexes had AH > TH. Males with CHH/KS were significantly, albeit moderately, taller than their brothers. ∆H was higher in CHH/KS compared to unaffected siblings (+6.2 ± 7.2 cm vs +3.4 ± 5.2 cm, P < 0.0001). ∆H was positively correlated with age at diagnosis. Neither olfactory function (normosmic CHH vs KS) nor specific genetic cause impacted ∆H. Individual growth during replacement therapy inversely correlated with the age at initiation of hormonal treatment (P < 0.0001). CONCLUSIONS: CHH/KS is associated with higher AH compared to the general population and mid-parental TH. Greater height in CHH/KS than siblings indicates that those differences are in part independent of an intergenerational effect.


Assuntos
Estatura/fisiologia , Síndrome de Kallmann/fisiopatologia , Adolescente , Adulto , Antropometria , Feminino , Terapia de Reposição Hormonal , Humanos , Síndrome de Kallmann/tratamento farmacológico , Masculino , Adulto Jovem
15.
J Vasc Nurs ; 37(3): 188-193, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31727310

RESUMO

Patients with peripheral artery disease (PAD) have increased risk for complications of cardiovascular disease. Smoking cessation, physical activity, and adherence to treatment are critical for limiting the progression of this chronic disease and improving health-related quality of life in patients with PAD.The aim of the study was to explore patient perceptions of PAD and views on medication, tobacco use, and physical activity. This descriptive, cross-sectional study included patients with PAD admitted to a vascular surgery unit at a tertiary academic medical center (October 2017 to January 2018). Sociodemographic data and medical information were collected during hospitalization. Patients completed the Brief Illness Perception Questionnaire, Beliefs about Medicines Questionnaire, and Cigarette Dependence Scale. Additional questions examined physical activity. In total, 32 patients participated in the study. About half (16/30) were active smokers, whereas the remainder had smoked in the past. Only half of patients (16/32) considered smoking as contributing to PAD. Most patients (18/30) perceived PAD as a chronic problem, yet 8/30 (27%) considered PAD a rather acute illness. Patients reported significant cognitive and emotional consequences of PAD (mean 6.2 ± 1.8 and 8.3 ± 2.9, maximum score 10, respectively). They rated relatively low perceived personal control (mean 4.8 ± 2.8, maximum score 10) and weak beliefs about the necessity of medication (mean 12.5 ± 3.3, maximum score 25). Most patients (21/32) perceived physical activity as a protective factor for PAD. Patients perceive PAD as having significant impact on their life and report low levels of personal control in managing PAD. Understanding patient health beliefs may inform more tailored therapeutic education and health promoting interventions to limit disease progression.


Assuntos
Hospitalização/estatística & dados numéricos , Pacientes Internados/psicologia , Percepção , Doença Arterial Periférica/psicologia , Idoso , Estudos Transversais , Exercício Físico , Feminino , Humanos , Masculino , Adesão à Medicação/psicologia , Doença Arterial Periférica/tratamento farmacológico , Qualidade de Vida , Fatores de Risco , Fumar/efeitos adversos , Inquéritos e Questionários
16.
J Clin Endocrinol Metab ; 104(8): 3403-3414, 2019 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-31220265

RESUMO

CONTEXT: After completion of puberty a subset of men experience functional hypogonadotropic hypogonadism (FHH) secondary to excessive exercise or weight loss. This phenomenon is akin to hypothalamic amenorrhea (HA) in women, yet little is known about FHH in men. OBJECTIVE: To investigate the neuroendocrine mechanisms, genetics, and natural history underlying FHH. DESIGN: Retrospective study in an academic medical center. PARTICIPANTS: Healthy postpubertal men presenting with symptoms of hypogonadism in the setting of excessive exercise (>10 hours/week) or weight loss (>10% of body weight). Healthy age-matched men served as controls. INTERVENTIONS: Clinical assessment, biochemical and neuroendocrine profiling, body composition, semen analysis, and genetic evaluation of genes known to cause isolated GnRH deficiency. MAIN OUTCOME MEASURES: Reproductive hormone levels, endogenous GnRH-induced LH pulse patterns, and rare genetic variants. RESULTS: Ten men with FHH were compared with 18 age-matched controls. Patients had significantly lower body mass index, testosterone, LH, and mean LH pulse amplitudes yet normal LH pulse frequency, serum FSH, and sperm counts. Some patients exhibited nocturnal, sleep-entrained LH pulses characteristic of early puberty, and one FHH subject showed a completely apulsatile LH secretion. After decreased exercise and weight gain, five men with men had normalized serum testosterone levels, and symptoms resolved. Rare missense variants in NSMF (n = 1) and CHD7 (n = 1) were identified in two men with FHH. CONCLUSIONS: FHH is a rare, reversible form of male GnRH deficiency. LH pulse patterns in male FHH are similar to those observed in women with HA. This study expands the spectrum of GnRH deficiency disorders in men.


Assuntos
Hormônio Liberador de Gonadotropina/deficiência , Hipogonadismo/fisiopatologia , Sistemas Neurossecretores/fisiopatologia , Adolescente , Humanos , Hipogonadismo/genética , Hormônio Luteinizante/sangue , Masculino , Mutação de Sentido Incorreto , Estudos Retrospectivos , Fatores de Transcrição/genética , Adulto Jovem
17.
Ann Pediatr Endocrinol Metab ; 24(1): 49-54, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30943680

RESUMO

Mutations in the CHD7 gene, encoding for the chromodomain helicase DNA-binding protein 7, are found in approximately 60% of individuals with CHARGE syndrome (coloboma, heart defects, choanal atresia, retarded growth and development, genital hypoplasia, ear abnormalities and/or hearing loss). Herein, we present a clinical case of a 14-year-old male presenting for evaluation of poor growth and pubertal delay highlighting the diagnostic challenges of CHARGE syndrome. The patient was born full term and underwent surgery at 5 days of life for bilateral choanal atresia. Developmental milestones were normally achieved. At age 14 his height and weight were -2.04 and -1.74 standard deviation score respectively. He had anosmia as well as prepubertal testes and micropenis (4 cm×1 cm). The biological profile showed low basal serum testosterone and gonadotropins (testosterone, 0.2 nmol/L; luteinizing hormone, 0.5 U/L; follicle-stimulating hormone, 1.3 U/L), and otherwise normal pituitary function and normal imaging of the hypothalamic-pituitary area. The constellation of choanal atresia, anosmia, mild dysmorphic features, micropenis and delayed puberty were suggestive of CHARGE syndrome. Targeted genetic testing of CHD7 was performed revealing a de novo heterozygous CHD7 mutation (c.4234T>G [p.Tyr1412Asp]). Further paraclinical investigations confirmed CHARGE syndrome. Despite the presence of suggestive features, CHARGE syndrome remained undiagnosed in this patient until adolescence. Genetic testing helps clarify the phenotypic and genotypic spectrum to facilitate diagnosis, thus promoting optimal follow-up, treatment, and appropriate genetic counselling.

18.
Clin Endocrinol (Oxf) ; 89(6): 712-718, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30194850

RESUMO

Men with hypogonadotropic hypogonadism (HH) are typically azoospermic, and yet HH is one of the few treatable forms of male infertility. Sperm induction protocols using gonadotrophins aim to replicate the natural endocrine control of spermatogenesis. Previously virilised men with adult-onset HH and normal testicular volume respond well to monotherapy in which human chorionic gonadotrophin (hCG) acts as a long-acting LH-analogue stimulating spermatogenesis. However, this approach is rarely successful for men with congenital HH (CHH) (eg, Kallmann syndrome), for whom combined gonadotrophin therapy (hCG + follicle-stimulating hormone [FSH]) is an absolute requirement to maximise fertility potential. Key baseline predictors of successful spermatogenesis-induction include prior spontaneous testicular development (ie, testicular volume [TV] > 4 mL), serum inhibin B (IB ) concentration >60 pg/mL and no history of maldescended testes (cryptorchidism).


Assuntos
Gonadotropina Coriônica/farmacologia , Hipogonadismo/fisiopatologia , Espermatogênese/efeitos dos fármacos , Adulto , Azoospermia/fisiopatologia , Humanos , Infertilidade Masculina/tratamento farmacológico , Infertilidade Masculina/fisiopatologia , Masculino , Espermatogênese/fisiologia , Testículo/efeitos dos fármacos , Testículo/fisiopatologia , Adulto Jovem
19.
J Nurs Scholarsh ; 50(5): 540-548, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-30033614

RESUMO

PURPOSE: The purpose of this study was to explore the acceptance of a novel role, the advanced practice nurse in lung cancer (APNLC), from the perspective of patients and healthcare professionals in a country lacking a regulatory oversight for advanced practice nursing (APN) roles. METHODS AND DESIGN: This study utilized a qualitative methodology using focus groups and semistructured interviews. Participants were purposively sampled in a Swiss academic medical center. Two focus groups were conducted: the first included nurses (n = 5) and the social worker, while the second targeted physicians (n = 6). The APNLC and patients (n = 4) were interviewed using semistructured interviews. Data were analyzed using thematic content analysis. FINDINGS: Three main themes were identified: APNLC role identification, APNLC role-specific contributions, and APNLC flexible service. Physicians and patients clearly recognized the APNLC role, noting contributions to continuity of care, psychosocial support, and enabling symptom self-management. Nurses perceived the APNLC role as overlapping with the oncology nurse role. Flexibility in providing care was seen as the strength of the APNLC role, yet this also posed organizational challenges. CONCLUSIONS: The new role appears to be well accepted by patients and physicians, yet barriers posed by nursing colleagues remain challenging. CLINICAL RELEVANCE: Based on existing literature and the present findings, we propose a model to guide future implementation and enhance acceptance of the APNLC role. This model comprises three actions: (a) formalizing nursing role expectations, (b) providing appropriate support and resources, and (c) promoting a national plan for APN regulation.


Assuntos
Prática Avançada de Enfermagem , Atitude do Pessoal de Saúde , Neoplasias Pulmonares/enfermagem , Papel do Profissional de Enfermagem , Enfermagem Oncológica/organização & administração , Adulto , Idoso , Continuidade da Assistência ao Paciente , Feminino , Grupos Focais , Humanos , Masculino , Pessoa de Meia-Idade , Enfermeiros Clínicos/psicologia , Pesquisa Qualitativa
20.
Asia Pac J Clin Oncol ; 14(6): 439-445, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29932278

RESUMO

AIM: Observation with close follow-up ("watch and wait") is a recognized treatment option in patients who achieve a complete clinical response to long course chemoradiotherapy. This review of a prospective database aims to evaluate the clinical outcomes among patients with a complete clinical response managed with observation. METHODS: A prospective study of 32 patients who achieved a complete clinical response was undertaken. The primary outcomes measured were overall and recurrence-free survival, and rate of organ preservation in patients who deferred immediate surgery. RESULTS: Seven patients developed local regrowth over a median follow-up period of 38 months (range, 9-91 months). Median time to detection was 12 months. All seven underwent salvage surgery with complete surgical clearance. One patient developed combined local and systemic recurrence following a low anterior resection. Organ preservation was possible in 25 (78%) patients who sustained a complete clinical response with no evidence of local regrowth or disease recurrence. Among the patients who sustained a complete response, two developed isolated systemic disease. Overall and recurrence-free survival was 95.7% and 87.0%, respectively. CONCLUSION: The majority of patients with rectal cancer who achieved a complete clinical response after chemoradiotherapy and managed with a "watch and wait" approach preserved their rectum and did not develop cancer relapse. Salvage surgery was achieved in all patients who developed local regrowth. The study supports a period of observation in rectal cancer patients who achieve a complete clinical response.


Assuntos
Quimiorradioterapia , Terapia Neoadjuvante , Recidiva Local de Neoplasia/terapia , Neoplasias Retais/terapia , Terapia de Salvação , Conduta Expectante , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Estudos Observacionais como Assunto , Prognóstico , Estudos Prospectivos , Neoplasias Retais/patologia , Indução de Remissão
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