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1.
Am J Drug Alcohol Abuse ; : 1-7, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38557160

RESUMEN

Background: A Zoom-based website was developed in 2020 that offers continuous access to online Narcotics Anonymous (NA) meetings for the first time. This website provides immediate access for persons with substance use disorder to support abstinence from substance-related addictive disorders.Objectives: This study is designed to characterize attendees employing this online format; to evaluate their experiences for gaining support to maintain abstinence; and to compare the 24/7 experience to face-to-face (FF) meetings they attend.Methods: An anonymous 33-item survey was made available on the 24/7 NA website that links to the 24/7 meetings. Persons accessing the site could choose to fill out the survey.Results: 530 respondents completed the survey (64.9% female/35.1% male). Most had stable prior involvement in NA. They had attended more 24/7 meetings (14.9, SD 19.7) than FF meetings (4.6, SD 7.8) in the previous month. 86% had previously attended FF meetings, 48% had served as sponsors, and 92% reported that the 24/7 meetings were more comfortable for them than the FF meetings (p < .001, Cohen's d = 0.65) and more supportive of abstinence (p < .001, Cohen's d = 0.91). Of the respondents, 8% were still using drugs, of whom 52% had previously completed some of the Twelve Steps.Conclusions: The 24/7 format provides a new and easily accessible way for NA members to gain support for abstinence and is positively rated by attendees seeking support for recovery from substance use disorders. It may serve as a valuable adjunct to the traditional FF format.

2.
Proc Natl Acad Sci U S A ; 120(52): e2308366120, 2023 Dec 26.
Artículo en Inglés | MEDLINE | ID: mdl-38113261

RESUMEN

Immune system threat detection hinges on T cells' ability to perceive varying peptide-major histocompatibility complex (pMHC) antigens. As the Erk and NFAT pathways link T cell receptor engagement to gene regulation, their signaling dynamics may convey information about pMHC inputs. To test this idea, we developed a dual reporter mouse strain and a quantitative imaging assay that, together, enable simultaneous monitoring of Erk and NFAT dynamics in live T cells over day-long timescales as they respond to varying pMHC inputs. Both pathways initially activate uniformly across various pMHC inputs but diverge only over longer (9+ h) timescales, enabling independent encoding of pMHC affinity and dose. These late signaling dynamics are decoded via multiple temporal and combinatorial mechanisms to generate pMHC-specific transcriptional responses. Our findings underscore the importance of long timescale signaling dynamics in antigen perception and establish a framework for understanding T cell responses under diverse contexts.


Asunto(s)
Activación de Linfocitos , Linfocitos T , Ratones , Animales , Receptores de Antígenos de Linfocitos T , Antígenos/metabolismo , Antígenos de Histocompatibilidad/metabolismo , Péptidos/metabolismo , Complejo Mayor de Histocompatibilidad , Percepción , Unión Proteica
3.
bioRxiv ; 2023 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-37333368

RESUMEN

Immune system threat detection hinges on T cells' ability to perceive varying peptide major-histocompatibility complex (pMHC) antigens. As the Erk and NFAT pathways link T cell receptor engagement to gene regulation, their signaling dynamics may convey information about pMHC inputs. To test this idea, we developed a dual reporter mouse strain and a quantitative imaging assay that, together, enable simultaneous monitoring of Erk and NFAT dynamics in live T cells over day-long timescales as they respond to varying pMHC inputs. Both pathways initially activate uniformly across various pMHC inputs, but diverge only over longer (9+ hrs) timescales, enabling independent encoding of pMHC affinity and dose. These late signaling dynamics are decoded via multiple temporal and combinatorial mechanisms to generate pMHC-specific transcriptional responses. Our findings underscore the importance of long timescale signaling dynamics in antigen perception, and establish a framework for understanding T cell responses under diverse contexts. SIGNIFICANCE STATEMENT: To counter diverse pathogens, T cells mount distinct responses to varying peptide-major histocompatibility complex ligands (pMHCs). They perceive the affinity of pMHCs for the T cell receptor (TCR), which reflects its foreignness, as well as pMHC abundance. By tracking signaling responses in single living cells to different pMHCs, we find that T cells can independently perceive pMHC affinity vs dose, and encode this information through the dynamics of Erk and NFAT signaling pathways downstream of the TCR. These dynamics are jointly decoded by gene regulatory mechanisms to produce pMHC-specific activation responses. Our work reveals how T cells can elicit tailored functional responses to diverse threats and how dysregulation of these responses may lead to immune pathologies.

4.
J Addict Dis ; : 1-9, 2023 Feb 11.
Artículo en Inglés | MEDLINE | ID: mdl-36772834

RESUMEN

BACKGROUND: Spirituality is a construct encompassing a diversity of strongly held beliefs and pursuits related to life's meaning and purpose. Empirical studies in key domains of spirituality related to substance use disorder (SUD) can be valuable in guiding research, and potentially clinical care. OBJECTIVES: To conduct a scoping review of research on the psychological, biological, and cultural dimensions of spirituality and their role in relation to SUD. To identify limitations in empirical findings within these domains and identify promising areas for related research. DATA SOURCES, STUDY APPRAISAL, AND SYNTHESIS METHODS: Illustrative studies available in the empirical literature are reviewed in order to characterize these three key domains. RESULTS: Certain areas of importance stand out: On Psychology, attribution of SUD to a spiritual outlook; spiritual awakening; the relation of spirituality to drug craving; and spirituality in the context of psychedelic-assisted psychotherapy. On Biology, heritability of traits related to shared spiritual experience; neurophysiologic correlates of spiritually related experiences; and correlates in brain imaging; On Culture, spiritual aspects of SUD in different cultural settings; distinctions between spiritual and religious phenomena; roles that international organizations play; and context of acquiring recovery capital. The need for further research in each area is defined. CONCLUSIONS: There is utility in examining the diversity of findings in the roles of psychology, biology, and culture in the SUD field. Further research, particularly applying randomization and clinical controls, would be useful in improving the effective application of the construct of spirituality in clinical care.

5.
Subst Use Misuse ; 58(1): 139-145, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36512831

RESUMEN

Background: The Twelve Steps described by Narcotics Anonymous (NA) and Alcoholics Anonymous denote key aspects of how members can achieve abstinence from alcohol and other drugs. However, there are limited empirical findings on what long-term members rely on to support their ongoing recovery.Method: In order to clarify the members' reliance on those latter resources, we surveyed 2,293 long-term NA members through the internet on items they rely on for their recovery. They scored nine NA-related resources (e.g., their sponsor) and three non-NA institutional ones (e.g., a professional therapist).Results: Three factors accounted for 53.6% of the variance in the respondents' scores of the 12 items. We labeled them, with the percent of variance accorded, as NA-based social (24.9%) support, spiritual (17.8%) support, and outside professional (10.9%) help. While NA-based resources ranked highest, outside resources (a house of worship, a therapist, or medications for psychological distress) were scored by 75.4% of the respondents. Analysis by subgroups of respondents reflected the diversity of resources members draw on. The use of internet-based meetings during the COVID-19 period reflected the resilience of the NA format.Conclusion: Members of Twelve Step programs can be studied to shed light on options that they rely on for support for their ongoing recovery, both within the fellowships and outside them. Long-term members can apparently rely on resources inside the fellowship and simultaneously on professional ones, as well. These findings can be helpful for researchers in considering mechanisms that underlie long-term Twelve Step-related recovery and for clinicians in employing both these fellowships and outside resources as adjuncts to their professional care.


Asunto(s)
Alcoholismo , COVID-19 , Humanos , Becas , Alcohólicos Anónimos , Encuestas y Cuestionarios , Alcoholismo/psicología
6.
Am J Addict ; 32(1): 54-59, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36428292

RESUMEN

BACKGROUND AND OBJECTIVES: Methamphetamine use disorder (MUD) is a major public health problem, but there are no evidence-based, best-practice, pharmacologic, or behavioral treatments for it. Narcotics Anonymous (NA) may provide an option for referral for such patients. METHODS: Two waves of surveys were sent to a sample of NA members to evaluate demographic, drug use, and NA-related issues. Of 4445 responses received from US residents, 647 listed themselves as abstinent from their worst drug problem, methamphetamine. Twelve possible sources of support were scored by these latter respondents for how important each was for their own recovery. RESULTS: Methamphetamine respondents were longstanding NA members, with their first NA meeting 30.2 years ago, 84.3% having served as sponsors for other members, and with little current craving (0.65 out of 10). Although now abstinent for an average of 13.4 years, at some point over the course of the membership, 47.4% had experienced a relapse, for an average of 16.7 months. In a factor analysis of resources scored, 29.6% of the variance fell under NA social and 29.2% spiritual; and 11.8% under outside professional support. DISCUSSION AND CONCLUSIONS: NA served as a resource for supporting abstinence for some members with MUD. They scored social resources of NA support higher than both spiritual and outside institutional ones. SCIENTIFIC SIGNIFICANCE: NA can serve as a community-based resource for MUD. Determining the nature of recovery that members with MUD have in NA can be useful for further research of socially grounded support for recovery in substance use disorders.


Asunto(s)
Metanfetamina , Trastornos Relacionados con Sustancias , Humanos , Trastornos Relacionados con Sustancias/terapia , Terapia Conductista , Narcóticos
7.
Mol Ecol ; 31(8): 2494-2509, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-35152505

RESUMEN

Many marine herbivorous fishes harbour diverse microbial communities in the hindgut that can play important roles in host health and nutrition. Kyphosus sydneyanus is a temperate marine herbivorous fish that feeds predominantly on brown seaweeds. We employed 16S rRNA gene amplicon sequencing and gas chromatography to characterize microbial communities and their metabolites in different hindgut regions of six K. sydneyanus. Measurements were confined to three distal sections of the intestine, labelled III, IV and V from anterior to posterior. A total of 625 operational taxonomic units from 20 phyla and 123 genera were obtained. Bacteroidota, Firmicutes and Proteobacteria were the major phyla in mean relative abundance, which varied along the gut. Firmicutes (76%) was the most dominant group in section III, whereas Bacteroidota (69.3%) dominated section V. Total short-chain fatty acid (SCFA) concentration was highest in sections IV and V, confirming active fermentation in these two most distal sections. The abundance of Bacteroidota correlated with propionate concentration in section V, while Firmicutes positively correlated with formate in sections III and IV. Acetate levels were highest in sections IV and V, which correlated with abundance of Bacteroidota. Despite differences in gut microbial community composition, SCFA profiles were consistent between individual fish in the different hindgut regions of K. sydneyanus, although proportions of SCFAs differed among gut sections. These findings demonstrate functional compartmentalization of the hindgut microbial community, highlighting the need for regional sampling when interpreting overall microbiome function. These results support previous work suggesting that hindgut microbiota in marine herbivorous fish are important to nutrition in some host species by converting dietary carbohydrates into metabolically useful SCFAs.


Asunto(s)
Bacterias , Microbiota , Animales , Bacteroidetes/genética , Ácidos Grasos Volátiles/metabolismo , Fermentación , Firmicutes , Peces/genética , Microbiota/genética , ARN Ribosómico 16S/genética
8.
J Addict Med ; 16(2): e81-e86, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-33870953

RESUMEN

OBJECTIVES: Face-to-face meetings are key components of Twelve Step (TS) fellowships' support of members' abstinence. Home confinement during COVID-19 made this less feasible. Our objective was to ascertain whether a transition to virtual online meetings among TS members took place, and whether it was potentially effective. METHODS: Two thousand one hundred fifty-two long-standing USA members of Narcotics Anonymous (NA) were surveyed to ascertain their recovery-related experiences and their relation to the transition to virtual meetings. RESULTS: During the previous week (ie, 'during COVID-19') respondents attended more virtual meetings ( = 4.13[SD4.64]) than they had attended both face-to-face meetings before COVID-19 ( = 3.35[SD2.05]), and also face-to-face meetings during COVID-19 ( = 0.75[SD1.8]). Many of the meetings were accessed from sites remote from their homes (44.4%), even overseas (21.5%). The majority (64.9%) found virtual meetings at least as effective in promoting their abstinence as were face-to-face meetings, and 41.8% estimated the same for newcomers. A shorter period of antecedent abstinence from drugs and increased loneliness were associated with increased craving during the transition period. Relative to Whites, Black respondents were less distressed, with a lesser increase in craving, and currently attended more virtual meetings. Data provided by a national program reflected a large increase in virtual TS attendance since the onset of the pandemic. CONCLUSIONS: In a survey of well-established NA members, most had made a successful transition from face-to-face to virtual meetings, relative to their antecedent characteristics. This successful transition suggests the possibility of an enhanced opportunity for stabilizing TS membership.


Asunto(s)
COVID-19 , Becas , Humanos , Narcóticos , Pandemias , Encuestas y Cuestionarios
9.
Clin Imaging ; 82: 110-116, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34801841

RESUMEN

PURPOSE: This study evaluates the temporal evolution of the spatial relationship between the pituitary adenoma transsphenoidal surgical cavity and the adjacent optic chiasm and discusses implications on timing and choice of radiotherapy modality. METHODS: This retrospective observational review analyzed factors that might influence the postoperative relationship between the surgical cavity and the optic chiasm, including tumor type, craniocaudal tumor and resection cavity dimensions, the preoperative distance between tumor and the optic chiasm, the presence of cavernous sinus invasion, and the choice of intraoperative packing material. Changes observed on magnetic resonance imaging in the preoperative, immediate (within 72 h), and delayed (≥3 months) postoperative periods were compared. RESULTS: Sixty-five patient histories were analyzed. Preoperatively, the pituitary adenoma was apposed to the optic chiasm in 43 patients (66%). Postoperatively, 34 patients (52%) in the immediate postoperative period and 54 patients (83%) in the delayed postoperative period had a distance ≥2 mm between the resection cavity and the optic chiasm. This distance provides a greater margin of safety with adjuvant radiosurgery. Preoperative tumor size showed a strong association with postoperative descent of the optic chiasm. CONCLUSIONS: Preoperative tumor size and degree of mass effect on the optic chiasm predict postoperative changes. In this study, the distance between the resection cavity and the optic chiasm was greater at ≥3 months postoperatively than in the immediate postoperative period, regardless of preoperative mass effect, indicating radiotherapy planning should be deferred to ≥3 months postoperatively when not precluded by aggressive histological characteristics that necessitate more immediate treatment. PRECIS: To investigate the temporal relationship between the postoperative sellar surgical cavity and the adjacent optic apparatus after transsphenoidal resection of pituitary adenomas and the implications for radiotherapy.


Asunto(s)
Adenoma , Neoplasias Hipofisarias , Adenoma/diagnóstico por imagen , Adenoma/radioterapia , Adenoma/cirugía , Humanos , Imagen por Resonancia Magnética , Neoplasias Hipofisarias/diagnóstico por imagen , Neoplasias Hipofisarias/radioterapia , Neoplasias Hipofisarias/cirugía , Periodo Posoperatorio , Estudios Retrospectivos
10.
Psychol Addict Behav ; 35(4): 402-414, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33764087

RESUMEN

OBJECTIVE: Alcohol and other drug (AOD) use disorders impose a prodigious personal and societal burden. While most remit, little is known about the achievements accrued as people accomplish and sustain addiction recovery. Greater knowledge regarding the nature and prevalence of such achievements, when such achievements occur, what factors influence accrual of achievements, and how such achievements relate to other indices of functioning would support treatment and policy planning, and may instill hope for individuals and families seeking AOD problem resolution. METHODS: Nationally representative, cross-sectional survey of United States (US) population of persons who have overcome an AOD problem (N = 2,002), assessing individual factors and achievements in 4 domains: self-improvement; family engagement; civic, and economic participation. Logistic and linear regression models tested theorized associations among variables. RESULTS: Most (80.1%) achieved at least one achievement associated with the 4 domains. A linear monotonic relationship was observed with greater achievements accruing with greater time in recovery. Accrual of achievements after AOD problem resolution was related to racial minority status, more education, earlier age of substance use initiation, illicit drugs as primary substance used, more years since resolving AOD problem, more psychiatric diagnoses, lower psychological distress, and regular 12-step program attendance. Multiple regression analyses found greater total achievements were independently associated with greater self-esteem, happiness, quality of life, and recovery capital. CONCLUSIONS: Most individuals achieve an increasing number of achievements with time since AOD problem resolution, and these are associated with gains in measures of well-being that may support ongoing AOD problem remission, and recovery. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Asunto(s)
Logro , Estatus Económico , Felicidad , Calidad de Vida , Autoimagen , Trastornos Relacionados con Sustancias/rehabilitación , Adolescente , Adulto , Anciano , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastornos Relacionados con Sustancias/psicología , Encuestas y Cuestionarios , Estados Unidos , Adulto Joven
11.
J Clin Med ; 9(10)2020 Sep 29.
Artículo en Inglés | MEDLINE | ID: mdl-33003336

RESUMEN

This is the first study to assess confocal laser endomicroscopy (CLE) use within the transsphenoidal approach and show the feasibility of obtaining digital diagnostic biopsies of pituitary tumor tissue after intravenous fluorescein injection. We confirmed that the CLE probe reaches the tuberculum sellae through the transnasal transsphenoidal corridor in cadaveric heads. Next, we confirmed that CLE provides images with identifiable histological features of pituitary adenoma. Biopsies from nine patients who underwent pituitary adenoma surgery were imaged ex vivo at various times after fluorescein injection and were assessed by a blinded board-certified neuropathologist. With frozen sections used as the standard, pituitary adenoma was diagnosed as "definitively" for 13 and as "favoring" in 3 of 16 specimens. CLE digital biopsies were diagnostic for pituitary adenoma in 10 of 16 specimens. The reasons for nondiagnostic CLE images were biopsy acquisition <1 min or >10 min after fluorescein injection (n = 5) and blood artifacts (n = 1). In conclusion, fluorescein provided sufficient contrast for CLE at a dose of 2 mg/kg, optimally 1-10 min after injection. These results provide a basis for further in vivo studies using CLE in transsphenoidal surgery.

12.
Am J Drug Alcohol Abuse ; 46(6): 731-738, 2020 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-32870030

RESUMEN

Background: The term God, included in 5 of the 12 Steps of Narcotics Anonymous (NA) and Alcoholics Anonymous (AA), self-designated spiritual fellowships, has not been studied empirically relative to members' experiences. A greater understanding of this can be clinically useful and can shed light on the 12 Step process of recovery. Objectives: To determine how NA members understand the 12-step concept "God as we understood Him" and the relationship between their understanding of God and the intensity of their craving and depressive symptoms." Methods: 450 (59% male) NA members completed a survey related to their experiences relative to their relationship with "God." The relationship among these variables and comparisons to the general population was analyzed. Craving and depressive symptoms were assessed by self-report. Results: 98% of the NA participants believe in God explicitly or some other higher power (vs 89% of a probability sample of the US population), 67% believe that God determines what happens to them some or all of the time (vs 48%), 78% (vs 28%) report hearing God talking to them "in their mind"; and 37% report that God talks to them "out loud." Acceptance of 12 Step God-related variables inversely predicted a significant portion of the variance of scores on craving (7.5%) and depression (13.5%). Conclusions: Respondents' understanding of God in NA varied considerably and was predictive of their depressive symptoms and craving intensity. These findings can serve as a basis for research into mechanisms underlying NA/AA recovery experiences and can also aid clinicians in how to employ these programs.


Asunto(s)
Espiritualidad , Trastornos Relacionados con Sustancias/terapia , Adulto , Alcohólicos Anónimos , Alcoholismo/terapia , Ansia , Depresión , Femenino , Humanos , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios
13.
J Neurol Surg B Skull Base ; 81(3): 237-243, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32499997

RESUMEN

Objectives Transsphenoidal surgery creates a skull base defect that may cause postoperative cerebrospinal fluid (CSF) leakage or pneumocephalus. This study reviewed the institutional experience of a pituitary center in managing patients who use positive-pressure ventilation (PPV) devices for obstructive sleep apnea (OSA) after transsphenoidal surgery, which risks disturbing the skull base repair. Design Retrospective review. Setting Pituitary referral center in a major metropolitan medical center. Methods PPV was resumed at the discretion of the treatment team based on intraoperative findings and OSA severity. Perioperative complications related to resuming and withholding PPV were recorded. Participants Transsphenoidal surgery patients with OSA using PPV devices. Main Outcome Measures Intracranial complications before and after resuming PPV. Results A total of 42 patients met the study criteria. Intraoperative CSF leakage was encountered and repaired in 20 (48%) patients. Overall, 38 patients resumed PPV (median: 3.5 weeks postsurgery; range: 0.14-52 weeks) and 4 patients did not resume PPV. Postoperatively, no patient experienced CSF leakage or pneumocephalus before or after resuming PPV. Four (10%) patients required temporary nocturnal supplemental oxygen at home, one patient was reintubated after a myocardial infarction, and one patient had a prolonged hospital stay due to chronic obstructive pulmonary disease exacerbation. Conclusions Resuming PPV use after transsphenoidal surgery did not result in intracranial complications. However, delay in resuming PPV resulted in four patients requiring oxygen at home. We propose a preliminary PPV device management algorithm based on the size of the intraoperative CSF leak to facilitate future studies.

14.
J Neurosurg ; 134(3): 761-770, 2020 Feb 07.
Artículo en Inglés | MEDLINE | ID: mdl-32032952

RESUMEN

OBJECTIVE: Current practice guidelines recommend delayed (≥ 3 months after operation) postoperative MRI after transsphenoidal surgery for pituitary adenomas, although this practice defers obtaining important information, such as the presence of a residual adenoma, that might influence patient management during the perioperative period. In this study, the authors compared detection of residual adenomas by means of early postoperative (EPO) MRI (< 48 hours postsurgery) with both surgeon intraoperative assessment and late postoperative (LPO) MRI at 3 months. METHODS: Adult patients who underwent microscopic transsphenoidal surgery for pituitary adenomas with MRI preoperatively, < 48 hours after the operation, 3 months postoperatively, and yearly for 4 years were included. The presence or absence of residual tumor was assessed intraoperatively by a single surgeon and postoperatively by 2 neuroradiologists blinded to the intraoperative assessment and other postoperative imaging studies. The presence of residual tumor was confirmed by reresection, tumor growth on imaging, or hormonal evidence. Interreader reliability was calculated at each imaging time point. Specificity, sensitivity, positive predictive value, and negative predictive value for EPO and LPO imaging and intraoperative assessment were determined. RESULTS: In total, 102 consecutive patients who underwent microscopic transsphenoidal resection of a pituitary adenoma were included. Eighteen patients (18%) had confirmed residual tumors (12 confirmed by tumor growth, 5 by surgery, and 1 by biochemical evidence of persistent disease). Interreader reliability for detecting residual tumor on EPO MRI was almost perfect (κ = 0.88) and significantly higher than that for LPO MRI (κ = 0.69, p = 0.03). EPO MRI was highly specific for residual tumor (98%), a finding similar to that for intraoperative assessment (99%, p = 0.60) and significantly higher than that for LPO MRI (81%, p < 0.001). Notably, EPO MRI was significantly more sensitive for residual tumor (100%) than both intraoperative assessment (78%, p = 0.04) and LPO MRI (78%, p = 0.04). EPO MRI had a 100% negative predictive value and was used to find 4 residual tumors that were not identified intraoperatively. Residual tumors found on EPO MRI allowed for reresection during the same hospitalization for 3 patients. CONCLUSIONS: EPO MRI after transsphenoidal pituitary surgery can be reliably interpreted and has greater sensitivity for detecting residual tumor than intraoperative assessment and LPO MRI. This result challenges current guidelines stating that delayed postoperative imaging is preferable to early imaging. Pituitary surgeons should consider performing EPO MRI either in addition to or instead of delayed imaging.


Asunto(s)
Adenoma/diagnóstico por imagen , Adenoma/cirugía , Imagen por Resonancia Magnética/métodos , Neoplasia Residual/diagnóstico por imagen , Neoplasia Residual/cirugía , Neoplasias Hipofisarias/diagnóstico por imagen , Neoplasias Hipofisarias/cirugía , Hueso Esfenoides/cirugía , Adulto , Anciano , Reacciones Falso Negativas , Femenino , Humanos , Procesamiento de Imagen Asistido por Computador , Masculino , Persona de Mediana Edad , Variaciones Dependientes del Observador , Periodo Posoperatorio , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Resultado del Tratamiento
15.
Oper Neurosurg (Hagerstown) ; 18(1): 26-33, 2020 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-31079156

RESUMEN

BACKGROUND: The influence of the surgeon's preoperative goal regarding the extent of tumor resection on patient outcomes has not been carefully studied among patients with nonfunctioning pituitary adenomas. OBJECTIVE: To analyze the relationship between surgical tumor removal goal and patient outcomes in a prospective multicenter study. METHODS: Centrally adjudicated extent of tumor resection (gross total resection [GTR] and subtotal resection [STR]) data were analyzed using standard univariate and multivariable analyses. RESULTS: GTR was accomplished in 148 of 171 (86.5%) patients with planned GTR and 32 of 50 (64.0%) patients with planned STR (P = .001). Sensitivity, specificity, positive predictive value, and negative predictive value of GTR goal were 82.2, 43.9, 86.5, and 36.0%, respectively. Knosp grade 0-2, first surgery, and being an experienced surgeon were associated with surgeons choosing GTR as the goal (P < .01). There was no association between surgical goal and presence of pituitary deficiency at 6 mo (P = .31). Tumor Knosp grade (P = .004) and size (P = .001) were stronger predictors of GTR than was surgical goal (P = .014). The most common site of residual tumor was the cavernous sinus (29 of 41 patients; 70.1%). CONCLUSION: This is the first pituitary surgery study to examine surgical goal regarding extent of tumor resection and associated patient outcomes. Surgical goal is a poor predictor of actual tumor resection. A more aggressive surgical goal does not correlate with pituitary gland dysfunction. A better understanding of the ability of surgeons to meet their expectations and of the factors associated with surgical result should improve prognostication and preoperative counseling.


Asunto(s)
Adenoma/cirugía , Neoplasias Hipofisarias/cirugía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Evaluación de Procesos y Resultados en Atención de Salud , Planificación de Atención al Paciente , Cuidados Preoperatorios , Estudios Prospectivos , Resultado del Tratamiento
16.
J Addict Med ; 13(5): 385-395, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31589181

RESUMEN

OBJECTIVES: The medical sequalae of alcohol and other drug (AOD) problems exact a prodigious personal and societal cost, but little is known about the specific prevalence of such medical problems, and their relationship to quality of life and indices of well-being among those recovering from problematic AOD use. To better characterize the lifetime physical disease burden, this study investigated the prevalence of medical conditions commonly caused or exacerbated by excessive and chronic AOD exposure in a nationally representative sample of US adults in AOD problem recovery. Comparisons were made to the general US population. Demographic and clinical correlates of disease prevalence were also investigated along with the relationship between distinct medical conditions and indices of quality of life/well-being. METHODS: Cross-sectional nationally representative survey of the US adult population who report resolving an AOD problem (n = 2002). Weighted lifetime prevalence of common medical conditions were estimated and compared to the US population. Demographic and clinical correlates of medical conditions, and also overall disease burden, were estimated using logistic regression. RESULTS: Relative to the general population, prevalence of hepatitis C, chronic obstructive pulmonary disease, heart disease, and diabetes were elevated. Likelihood of having a lifetime diagnosis of a specific disease was related to primary substance used and sex. Quality of life was lower among those with physical disease histories relative to those without. CONCLUSIONS: Findings highlight the increased medical burden associated with AOD problems, and speak to the need for earlier and more sustained intervention for AOD problems, greater integration of addiction treatment and primary health care, and longitudinal research to explore the complex, dynamic relationships between AOD use and physical disease.


Asunto(s)
Trastornos Relacionados con Alcohol/epidemiología , Trastornos Relacionados con Alcohol/terapia , Costo de Enfermedad , Trastornos Relacionados con Sustancias/epidemiología , Trastornos Relacionados con Sustancias/terapia , Adolescente , Adulto , Anciano , Vías Clínicas/estadística & datos numéricos , Estudios Transversales , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Prevalencia , Calidad de Vida , Encuestas y Cuestionarios , Estados Unidos/epidemiología , Adulto Joven
17.
Pituitary ; 22(5): 514-519, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31401793

RESUMEN

PURPOSE: The 2017 World Health Organization classification of pituitary tumors redefined pituitary null cell adenomas (NCAs) by restricting this diagnostic category to pituitary tumors that are negative for pituitary transcription factors and adenohypophyseal hormones. The clinical behavior of this redefined entity has not been widely studied, and this is a major shortcoming of the classification. This study evaluated the imaging and clinical features of NCAs from two pituitary centers and compared them with those of gonadotroph adenomas (GAs). METHODS: Imaging, pathologic, and clinical characteristics of NCAs and GAs were retrospectively reviewed. Tumor immunohistochemistry was performed to confirm absence of adenohypophyseal hormones and pituitary transcription factor expression. RESULTS: Thirty-one NCAs were compared with 38 GAs. NCAs were more likely to invade the cavernous sinus (15/31 [48%] vs. 5/38 [13%], P = .003) and had a higher proliferative index (i.e., MIB-1 > 3%, 11/31 [35%] vs. 5/38 [13%], P = .04). Gross total resection was less likely in the NCA group (19/31 [61%] vs. 33/38 [87], P = .02). Progression-free survival was worse in the NCA cohort (5-year progression-free survival, 0.70 vs. 1.00; P = .011, by log-rank test). CONCLUSIONS: Compared with GAs, NCAs are more invasive at the time of presentation and have a more aggressive clinical course. This study provides evidence that NCAs represent a distinct clinicopathologic entity with behavior that differs adversely from that of GAs. This may inform clinical decision-making, including frequency of postoperative tumor surveillance and timing of adjunctive treatments.


Asunto(s)
Hipófisis/diagnóstico por imagen , Hipófisis/patología , Neoplasias Hipofisarias/diagnóstico por imagen , Neoplasias Hipofisarias/patología , Femenino , Humanos , Inmunohistoquímica , Estimación de Kaplan-Meier , Linfocitos Nulos/patología , Masculino , Enfermedades de la Hipófisis/diagnóstico por imagen , Enfermedades de la Hipófisis/mortalidad , Enfermedades de la Hipófisis/patología , Neoplasias Hipofisarias/mortalidad , Supervivencia sin Progresión , Estudios Retrospectivos , Organización Mundial de la Salud
18.
Alcohol Clin Exp Res ; 43(7): 1533-1544, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-31090945

RESUMEN

BACKGROUND: Alcohol and other drug (AOD) problems are commonly depicted as chronically relapsing, implying multiple recovery attempts are needed prior to remission. Yet, although a robust literature exists on quit attempts in the tobacco field, little is known regarding patterns of cessation attempts related to alcohol, opioid, stimulant, or cannabis problems. Greater knowledge of such estimates and the factors associated with needing fewer or greater attempts may have utility for health policy and clinical communication efforts and approaches. METHODS: Cross-sectional, nationally representative survey of U.S. adults (N = 39,809) who reported resolving a significant AOD problem (n = 2,002) and assessed on number of prior serious recovery attempts, demographic variables, primary substance, clinical histories, and indices of psychological distress and well-being. RESULTS: The statistical distribution of serious recovery attempts was highly skewed with a mean of 5.35 (SD = 13.41) and median of 2 (interquartile range [IQR] = 1 to 4). Black race, prior use of treatment and mutual-help groups, and history of psychiatric comorbidity were associated with higher number of attempts, and more attempts were associated independently with greater current distress. Number of recovery attempts did not differ by primary substance (e.g., opioids vs. alcohol). CONCLUSIONS: Estimates of recovery attempts differed substantially depending on whether the mean (5.35 recovery attempts) or median (2 recovery attempts) was used as the estimator. Implications of this are that the average may be substantially lower than anticipated because cultural expectations are often based on AOD problems being "chronically relapsing" disorders implicating seemingly endless tries. Depending on which one of these estimates is reported in policy documents or communicated in public health announcements or clinical settings, each may elicit varying degrees of help-seeking, hope, motivation, and the use of more assertive clinical approaches. The more fitting, median estimate of attempts should be used in clinical and policy communications given the distribution.


Asunto(s)
Alcoholismo/rehabilitación , Trastornos Relacionados con Sustancias/rehabilitación , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Alcoholismo/complicaciones , Alcoholismo/epidemiología , Estudios Transversales , Etnicidad , Femenino , Felicidad , Humanos , Masculino , Trastornos Mentales/complicaciones , Persona de Mediana Edad , Motivación , Trastornos Relacionados con Opioides/rehabilitación , Aceptación de la Atención de Salud , Calidad de Vida , Recurrencia , Autoimagen , Grupos de Autoayuda , Factores Socioeconómicos , Trastornos Relacionados con Sustancias/complicaciones , Trastornos Relacionados con Sustancias/epidemiología , Encuestas y Cuestionarios , Resultado del Tratamiento , Estados Unidos/epidemiología , Adulto Joven
19.
World Neurosurg ; 129: e294-e302, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31132506

RESUMEN

OBJECTIVE: Granular cell tumors (GCTs), pituicytomas, and spindle cell oncocytomas are rare, nonfunctioning pituitary tumors sharing positive staining of thyroid transcription factor 1. We present our series, the first single-institutional report with long-term surgical follow-up of all 3 tumor types. METHODS: Our institutional pathology database was queried for these 3 pathologic diagnoses. Clinical records were assessed for clinical presentation, preoperative and postoperative endocrine status, tumor location on imaging, surgical characteristics, pathology results, and tumor recurrence. RESULTS: Data were analyzed for 4 patients with GCTs, 4 with pituicytomas, and 3 with spindle cell oncocytomas. The most common symptoms at presentation were vision changes (64%), headache (55%), endocrine abnormalities (55%), and fatigue (46%). GCTs were the only subtype to present exclusively in the infundibulum and the only subtype in our series to be treated with a transcranial transsylvian approach to resection (n = 2). In our study, in contrast to other reports, estimated blood loss was less than 300 mL in all patients. Imaging confirmed gross total resection in all 11 cases with no known recurrences at a mean (standard deviation) follow-up of 4.7 (3.7) years. CONCLUSIONS: We present a single-institution series of rare thyroid transcription factor 1-staining posterior pituitary tumors of the sellar region. Key novel findings include gross total resection with no tumor recurrence at nearly 5 years of mean follow-up and no cases of excess or uncontrolled blood loss. Our findings reinforce the observation that GCTs present in the suprasellar space.


Asunto(s)
Adenoma Oxifílico/metabolismo , Tumor de Células Granulares/metabolismo , Hipófisis/metabolismo , Neoplasias Hipofisarias/metabolismo , Factor Nuclear Tiroideo 1/metabolismo , Adenoma Oxifílico/patología , Adulto , Anciano , Biomarcadores de Tumor/metabolismo , Femenino , Tumor de Células Granulares/patología , Humanos , Masculino , Persona de Mediana Edad , Hipófisis/patología , Neoplasias Hipofisarias/patología , Estudios Retrospectivos
20.
J Addict Med ; 13(6): 493-499, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30939500

RESUMEN

OBJECTIVE: Narcotics Anonymous (NA), a nonprofessional 12-step fellowship for people seeking recovery from addiction, reports 27,677 meetings in the USA, where it was founded, but there is limited literature on its adaptability cross-culturally. We studied NA within the Islamic Republic of Iran to ascertain its relative adaptation in a different cultural setting. METHOD: We surveyed 262 NA members in Iran, supplemented by member interviews, and compared demographic and substance use-related characteristics of members, and also the nature of their respective involvement in NA, to the survey results of a previous US survey (n = 527). RESULTS: NA in Iran reports 21,974 meetings. The Iranian respondents surveyed differed relatively little (d < 0.50) from US members on demographics and prior ambulatory substance use disorder treatment, but did have fewer female members (means for Iran and US: 42.4 vs 39.0 years; 77% vs 87%; 6% vs 28%, respectively). They were, however, more involved in the fellowship (d > 0.50) in terms of reporting service as sponsors, experience of spiritual awakening, and achievement of diminished craving (scores of 1-10) (85% vs 48%; 95% vs 84%; 1.03 vs 1.89, respectively). Surveyed NA members in Iran publicized the fellowship with public (36%) and religious (20%) figures, and systematically worked the 12 steps in large sponsor-led groups ((Equation is included in full-text article.)= 19 members). CONCLUSION: NA, a 12-step program developed in a Western, predominantly Christian-oriented country, was adapted widely in the Islamic Republic of Iran, a setting different in culture, language, ethnicity, and religious orientation. The growth in its membership derives, in part, from specific innovations that may have broader applicability in other settings.


Asunto(s)
Control de la Conducta/métodos , Comparación Transcultural , Grupos de Autoayuda/organización & administración , Espiritualidad , Trastornos Relacionados con Sustancias/rehabilitación , Adulto , Control de la Conducta/psicología , Femenino , Humanos , Relaciones Interpersonales , Entrevista Psicológica , Irán , Modelos Lineales , Masculino , Persona de Mediana Edad , Grupos de Autoayuda/estadística & datos numéricos , Encuestas y Cuestionarios , Estados Unidos
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