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1.
J Pharmacol Exp Ther ; 2024 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-39284623

RESUMEN

Post-traumatic stress disorder (PTSD) is a debilitating psychiatric condition that develops following exposure to a traumatic event. Individuals with this condition experience numerous physiological and behavioral alterations, including intrusive memories, avoidance of trauma-related stimuli, heightened anxiety, hypervigilance, impaired cognition, elevated resting heart rate and blood pressure, and altered neuroendocrine function, to name a few. In most patients, currently available pharmacological and psychological treatments are insufficient to alleviate the array of symptoms associated with the disorder. Thus, novel treatment options that can more effectively target the core etiology of PTSD are desperately needed. Recent work demonstrating the psychoplastogenic effects of psychedelics has reinvigorated research to examine their therapeutic potential in psychiatric conditions. Psilocybin, one psychedelic found in the Psilocybe genus of mushrooms, has exhibited promising antidepressant and anxiolytic effects in preclinical and clinical studies. The purpose of this review is to summarize the existing research that has examined the behavioral effects of psilocybin and link it to potential efficacy in treating PTSD-related symptoms. The proposed mechanisms for psilocybin's effects are then explored, as are the benefits and drawbacks for the agent's therapeutic use. Finally, the challenges faced by investigators aiming to study psilocybin as a therapeutic aid in future studies are discussed in order to shed light on this budding area of research. Significance Statement Current pharmacotherapy for PTSD is insufficient. Traditional antidepressants and anxiolytics help reduce symptom severity, but nonresponse rates often reach levels greater than 50%, emphasizing the need for more effective treatment options. The goal of this review is to summarize the existing evidence for and the potential mechanisms of the antidepressant and anxiolytic effects of psilocybin, a psychedelic compound found in the Psilocybe genus of mushrooms. We then relate the observed effects to psilocybin's potential use as a treatment for PTSD.

2.
bioRxiv ; 2024 Sep 08.
Artículo en Inglés | MEDLINE | ID: mdl-39282356

RESUMEN

We deployed the Blended Genome Exome (BGE), a DNA library blending approach that generates low pass whole genome (1-4x mean depth) and deep whole exome (30-40x mean depth) data in a single sequencing run. This technology is cost-effective, empowers most genomic discoveries possible with deep whole genome sequencing, and provides an unbiased method to capture the diversity of common SNP variation across the globe. To evaluate this new technology at scale, we applied BGE to sequence >53,000 samples from the Populations Underrepresented in Mental Illness Associations Studies (PUMAS) Project, which included participants across African, African American, and Latin American populations. We evaluated the accuracy of BGE imputed genotypes against raw genotype calls from the Illumina Global Screening Array. All PUMAS cohorts had R 2 concordance ≥95% among SNPs with MAF≥1%, and never fell below ≥90% R 2 for SNPs with MAF<1%. Furthermore, concordance rates among local ancestries within two recently admixed cohorts were consistent among SNPs with MAF≥1%, with only minor deviations in SNPs with MAF<1%. We also benchmarked the discovery capacity of BGE to access protein-coding copy number variants (CNVs) against deep whole genome data, finding that deletions and duplications spanning at least 3 exons had a positive predicted value of ∼90%. Our results demonstrate BGE scalability and efficacy in capturing SNPs, indels, and CNVs in the human genome at 28% of the cost of deep whole-genome sequencing. BGE is poised to enhance access to genomic testing and empower genomic discoveries, particularly in underrepresented populations.

3.
Sci Rep ; 14(1): 20813, 2024 09 06.
Artículo en Inglés | MEDLINE | ID: mdl-39242814

RESUMEN

During pregnancy the immune system needs to maintain immune tolerance of the foetus while also responding to infection, which can cause premature activation of the inflammatory pathways leading to the onset of labour and preterm birth. The vaginal microbiome is an important modifier of preterm birth risk, with Lactobacillus dominance during pregnancy associated with term delivery while high microbial diversity is associated with an increased risk of preterm birth. Glycans on glycoproteins along the lower female reproductive tract are fundamental to microbiota-host interactions and the mediation of inflammatory responses. However, the specific glycan epitopes involved in these processes are not well understood. To address this, we conducted glycomic analyses of cervicovaginal fluid (CVF) from 36 pregnant women at high risk of preterm birth and 4 non-pregnant women. Our analysis of N- and O-glycans revealed a rich CVF glycome. While O-glycans were shown to be the main carriers of ABO blood group epitopes, the main features of N-glycans were the presence of abundant paucimannose and high mannose glycans, and a remarkable diversity of complex bi-, tri-, and tetra-antennary glycans decorated with fucose and sialic acid. We identified immuno-regulatory epitopes, such as Lewis antigens, and found that fucosylation was negatively correlated to pro-inflammatory factors, such as IL-1ß, MMP-8, C3a and C5a, while glycans with only sialylated antennae were mainly positively correlated to those. Similarly, paucimannose glycans showed a positive correlation to pro-inflammatory factors. We revealed a high abundance of glycans which have previously been identified as hallmarks of cancer and viral glycosylation, such as Man8 and Man9 high mannose glycans. Although each pregnant woman had a unique glycomic profile, longitudinal studies showed that the main glycosylation features were consistent throughout pregnancy in women who delivered at term, whereas women who experienced extreme preterm birth exhibited sharp changes in the CVF glycome shortly before delivery. These findings shed light on the processes underlying the role of glycosylation in maintaining a healthy vaginal microbiome and associated host immune responses. In addition, these discoveries facilitate our understanding of the lower female reproductive tract which has broad implications for women's health.


Asunto(s)
Epítopos , Glicómica , Polisacáridos , Nacimiento Prematuro , Vagina , Humanos , Femenino , Nacimiento Prematuro/inmunología , Nacimiento Prematuro/metabolismo , Embarazo , Glicosilación , Vagina/inmunología , Vagina/metabolismo , Vagina/microbiología , Adulto , Epítopos/inmunología , Polisacáridos/metabolismo , Polisacáridos/inmunología , Cuello del Útero/inmunología , Cuello del Útero/metabolismo , Líquidos Corporales/inmunología , Líquidos Corporales/metabolismo , Microbiota/inmunología
4.
Psychol Rep ; : 332941241284063, 2024 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-39263952

RESUMEN

Following the well-researched two-dimensional model of attachment-system functioning, based on the concepts of hyperactivation and deactivation, a two-dimensional model of the power behavioral system has recently been proposed. The power system is aimed at activating, organizing, and implementing action patterns that protect or restore a sense of power or dominance. Here, we tested predictions derived from the two-dimensional model of power-system functioning regarding the contribution of a 'problematic' high-high pattern, characterized by the coexistence of both hyperactivating and deactivating strategies, to psychopathological symptoms. A non-clinical sample of Italian adults (N = 385) completed the Power Behavioral System Scale together with self-report measures of anxiety and depression symptoms and difficulties in executive control. Multiple regression analyses showed that higher deactivation and hyperactivation scores, characteristic of the 'problematic' pattern, significantly predicted anxiety and depression symptoms as well as executive function difficulties. These results provide initial support for the pathogenic implications of the 'problematic' high-high pattern of power-system functioning.

5.
Microbiome ; 12(1): 118, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38951935

RESUMEN

BACKGROUND: Endometrial cancer is a multifactorial disease with inflammatory, metabolic and potentially microbial cues involved in disease pathogenesis. The endometrial cancer microbiome has been poorly characterised so far and studies have often overestimated bacterial biomass due to lack of integration of appropriate contamination controls. There is also a scarcity of evidence on the functionality of microbial microenvironments in endometrial cancer. This work addresses that knowledge gap by interrogating the genuine, contamination-free microbial signatures in the female genital tract and rectum of women with endometrial cancer and the mechanistic role of microbiome on carcinogenic processes. RESULTS: Here we sampled different regions of the reproductive tract (vagina, cervix, endometrium, fallopian tubes and ovaries) and rectum of 61 patients (37 endometrial cancer; 24 benign controls). We performed 16S rRNA gene sequencing of the V1-V2 hypervariable regions and qPCR of the 16S rRNA gene to qualitatively and quantitatively assess microbial communities and used 3D benign and endometrial cancer organoids to evaluate the effect of microbial products of L. crispatus, which was found depleted in endometrial cancer patients following primary analysis, on endometrial cell proliferation and inflammation. We found that the upper genital tract of a subset of women with and without endometrial cancer harbour microbiota quantitatively and compositionally distinguishable from background contaminants. Endometrial cancer was associated with reduced cervicovaginal and rectal bacterial load together with depletion of Lactobacillus species relative abundance, including L. crispatus, increased bacterial diversity and enrichment of Porphyromonas, Prevotella, Peptoniphilus and Anaerococcus in the lower genital tract and endometrium. Treatment of benign and malignant endometrial organoids with L. crispatus conditioned media exerted an anti-proliferative effect at high concentrations but had minimal impact on cytokine and chemokine profiles. CONCLUSIONS: Our findings provide evidence that the upper female reproductive tract of some women contains detectable levels of bacteria, the composition of which is associated with endometrial cancer. Whether this is a cause or consequence of cancer pathophysiology and what is the functional significance of this finding remain to be elucidated to guide future screening tools and microbiome-based therapeutics. Video Abstract.


Asunto(s)
Bacterias , Neoplasias Endometriales , Microbiota , ARN Ribosómico 16S , Humanos , Femenino , Neoplasias Endometriales/microbiología , ARN Ribosómico 16S/genética , Persona de Mediana Edad , Bacterias/clasificación , Bacterias/genética , Bacterias/aislamiento & purificación , Endometrio/microbiología , Endometrio/patología , Anciano , Recto/microbiología , Vagina/microbiología , Adulto
6.
Aust J Rural Health ; 2024 Jul 04.
Artículo en Inglés | MEDLINE | ID: mdl-38963186

RESUMEN

INTRODUCTION: To systematically compare the global prevalence of musculoskeletal pain and care-seeking in rural and urban populations. METHODS: A systematic review with meta-analysis of observational studies reporting a direct comparison of rural and urban populations was conducted worldwide and included back, knee, hip, shoulder, neck pain and a broad diagnosis of 'musculoskeletal pain'. A search strategy combining terms related to 'prevalence', 'musculoskeletal pain' and 'rural' was used on the following databases: MEDLINE, Embase, CINAHL, Scopus, and rural and remote health from their inception to 1 June 2022. Random-effects meta-analysis was used to pool the data. Results were presented as odds ratios (OR) along with 95% confidence intervals (95% CI). RESULTS: A total of 42 studies from 24 countries were included with a total population of 489 439 participants. The quality scores for the included studies, using the modified Newcastle Ottawa Scale tool, showed an average score of 0.78/1, which represents an overall good quality. The pooled analysis showed statistically greater odds of hip (OR = 1.62, 95% CI = 1.23-2.15), shoulder (OR = 1.42, 95% CI = 1.06-1.90) and overall musculoskeletal pain (OR = 1.26, 95% CI = 1.08-1.47) in rural populations compared to urban populations. Although the odds of seeking treatment were higher in rural populations this relationship was not statistically significant (OR = 0.76, 95% CI = 0.55-1.03). CONCLUSION: Very low-certainty evidence suggests that musculoskeletal, hip and shoulder pain are more prevalent in rural than urban areas, although neck, back and knee pain, along with care-seeking, showed no significant difference between these populations. Strategies aimed to reduce the burden of musculoskeletal pain should consider the specific needs and limited access to quality evidence-based care for musculoskeletal pain of rural populations.

7.
J Microbiol Biol Educ ; 25(2): e0007824, 2024 Aug 29.
Artículo en Inglés | MEDLINE | ID: mdl-39012128

RESUMEN

The complexity of modern biology poses challenges in fostering interdisciplinary understanding, particularly between practicing scientists and the public. Furthermore, scientists often lack formal training in science communication, despite various motivations to engage the public. The science literacy of the public in the biological sciences can also vary across socio-economic and cultural backgrounds. Leveraging popular culture and informal learning practices to promote active learning offers promising avenues to enhance public understanding of biological systems. Organized sports hold collective recognition across various communities and cultures, serving as a means to bring people together. Notably, the NCAA March Madness event holds widespread national and international popularity, presenting an opportunity to laterally apply this concept to promote science communication within STEM and biology education. An educational social media and web-based contest tool was developed integrating NCAA-inspired brackets with animal biological systems concepts. The tool featured tournament-style matchups based on animal biological systems, interesting animal facts, and a voting system, all housed within a user-friendly interface. To encourage regular user access to the tool, graphic designs were developed for all social media posts to aid in visual recruitment to the voting website. Based on online metrics, the use of social media garnered repeat users across both the public and educators. The latter noted the tool's simplicity and informative content. Application of this social media and web-based bracket contest tool, which leverages informal settings for active learning for use in biology education, can foster science communication to engage audiences, improve comprehension, and promote interdisciplinary biology education.

8.
Dis Colon Rectum ; 67(10): 1304-1312, 2024 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-39016381

RESUMEN

BACKGROUND: Few studies report outcomes for enhanced recovery pathways in ambulatory anorectal surgery. We hypothesize that an ambulatory anorectal enhanced recovery pathway with multimodal analgesia can reduce postoperative opioid use. OBJECTIVE: To compare postoperative opioid use in patients undergoing ambulatory anorectal surgery who receive multimodal analgesia versus standard of care without multimodal analgesia. DESIGN: A prospective randomized trial of patients undergoing elective anal fistula or hemorrhoid surgery from September 2018 to May 2022. SETTING: Urban teaching hospital. PATIENTS: Adults aged 18 to 70 years undergoing elective anal fistula or hemorrhoid surgery from September 2018 to May 2022. INTERVENTION: Multimodal enhanced recovery pathway including preoperative and postoperative nonopioid analgesia with oral acetaminophen, gabapentin, and ketolorac. MAIN OUTCOME MEASURES: Primary end point was oral opioid use during the first postoperative week. Secondary end points included maximum pain and nausea scores, adverse events, and emergency room or hospital admissions during the first 30 days postoperatively. RESULTS: Of the 109 enrolled patients, 20 were lost to follow-up. The remaining 89 patients had a median age of 38 years (range, 20-67) and included 41 women (46%). There were no significant differences between the enhanced recovery protocol arm and non-enhanced recovery protocol arm in terms of preoperative and surgical characteristics. The primary end point of this study, that is, oral morphine milligram equivalents use during the first week, was significantly higher among patients in the non-enhanced recovery protocol arm (79 mg; range, 0-600) than patients in the enhanced recovery protocol arm (8 mg; range, 0-390; p = 0.002). On subgroup analysis, both fistula and hemorrhoid surgery patients assigned to the non-enhanced recovery protocol arm took significantly higher oral morphine milligram equivalents in the first week than patients in the enhanced recovery protocol arm. There was no significant difference in secondary end points. LIMITATIONS: Patients and providers were not blinded. Our findings are limited to hemorrhoid and fistula surgery and may not be applicable to other anorectal procedures. CONCLUSIONS: Enhanced recovery protocols including multimodal analgesia should be used in elective anal fistula and hemorrhoid surgery to decrease postoperative opioid use. See the Video Abstract . CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov ID NCT03738904. IMPLEMENTACIN DE PROTOCOLO DE RECUPERACIN ACELERADA MULTIMODAL EN CIRUGA ANORRECTAL AMBULATORIA UN ESTUDIO ALEATORIZADO: ANTECEDENTES:Pocos estudios reportan resultados de programas de recuperación acelerada en la cirugía anorrectal ambulatoria. Presumimos que un programa anorrectal ambulatorio de recuperación acelerada con analgesia multimodal puede reducir el uso posoperatorio de opioides.OBJETIVO:Comparar el uso posoperatorio de opioides en pacientes sometidos a cirugía anorrectal ambulatoria que reciben analgesia multimodal versus atención estándar sin analgesia multimodal.DISEÑO:Un estudio prospectivo aleatorizado de pacientes sometidos a cirugía electiva de fístula anal o hemorroides desde septiembre de 2018 hasta mayo de 2022.LUGAR: Hospital universitario urbano.PACIENTES:Adultos de 18 a 70 años sometidos a cirugía electiva de fístula anal o hemorroides desde septiembre de 2018 hasta mayo de 2022.INTERVENCIÓN:Programa de recuperación acelerada multimodal que incluye analgesia no opioide pre y posoperatoria con paracetamol oral, gabapentina y ketoloraco.PRINCIPALES MEDIDAS DE RESULTADO:El resultado principal fue el uso de opioides orales durante la primera semana postoperatoria. Los resultados secundarios incluyeron puntuaciones máximas de dolor y náuseas, eventos adversos e ingresos a la sala de emergencias o al hospital durante los primeros 30 días después de la operación.RESULTADOS:De los 109 pacientes incluidos, 20 se perdieron durante el seguimiento. Los 89 pacientes restantes tenían una mediana de edad de 38 (rango, 20-67) años e incluían 41 (46%) mujeres. No hubo diferencias significativas entre los grupos del protocolo de recuperación acelerada (Grupo E) y del protocolo de recuperación no acelerada (Grupo NE) en términos de características preoperatorias y quirúrgicas. El resultado principal del estudio, el uso de MME oral durante la primera semana, fue significativamente mayor entre los pacientes del grupo NE (79 mg; rango: 0-600) que los pacientes del grupo E (8 mg; rango: 0-390) ( p = 0,002). En el análisis de subgrupos, los pacientes de cirugía de fístula y hemorroides asignados al grupo NE tomaron MME oral significativamente más alto en la primera semana que los pacientes del grupo E. No hubo diferencias significativas en los resultados secundarios.LIMITACIONES:Los pacientes y proveedores no fueron cegados. Nuestros hallazgos se limitan a la cirugía de hemorroides y fístulas y pueden no ser aplicables a otros procedimientos anorrectales.CONCLUSIONES:Se deben utilizar protocolos de recuperación acelerada que incluyan analgesia multimodal en la cirugía electiva de fístula anal y hemorroides para disminuir el uso posoperatorio de opioides. (Traducción- Dr. Francisco M. Abarca-Rendon )CLINICAL TRIAL REGISTRATION:ClinicalTrials.gov ID NCT03738904.


Asunto(s)
Procedimientos Quirúrgicos Ambulatorios , Analgésicos Opioides , Recuperación Mejorada Después de la Cirugía , Dolor Postoperatorio , Fístula Rectal , Humanos , Femenino , Adulto , Masculino , Persona de Mediana Edad , Dolor Postoperatorio/prevención & control , Dolor Postoperatorio/tratamiento farmacológico , Procedimientos Quirúrgicos Ambulatorios/métodos , Analgésicos Opioides/uso terapéutico , Analgésicos Opioides/administración & dosificación , Anciano , Estudios Prospectivos , Fístula Rectal/cirugía , Hemorroides/cirugía , Acetaminofén/uso terapéutico , Acetaminofén/administración & dosificación , Adulto Joven , Gabapentina/uso terapéutico , Gabapentina/administración & dosificación , Manejo del Dolor/métodos , Procedimientos Quirúrgicos Electivos/métodos
9.
J Infect Dis ; 2024 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-39028664

RESUMEN

Within a multi-state viral genomic surveillance program, we evaluated whether proportions of SARS-CoV-2 infections attributed to the JN.1 variant and to XBB-lineage variants (including HV.1 and EG.5) differed between inpatient and outpatient care settings during periods of cocirculation. Both JN.1 and HV.1 were less likely than EG.5 to account for infections among inpatients versus outpatients (aOR=0.60 [95% CI: 0.43-0.84; p=0.003] and aOR=0.35 [95% CI: 0.21-0.58; p<0.001], respectively). JN.1 and HV.1 variants may be associated with a lower risk of severe illness. The severity of COVID-19 may have attenuated as predominant circulating SARS-CoV-2 lineages shifted from EG.5 to HV.1 to JN.1.

10.
Artículo en Inglés | MEDLINE | ID: mdl-39034527

RESUMEN

INTRODUCTION: Preterm delivery (PTD) is the leading cause of death in children under 5 years of age. Cervical shortening detected by ultrasound can be used to predict PTD, but prediction is not perfect, and complementary diagnostic markers are needed. Recently, specific plasma microribonucleic acid (miRNAs) detected in early second trimester were shown to be associated with spontaneous PTD in high-risk women with a singleton pregnancy. The aim of this study was to explore to what extent these miRNAs are associated with spontaneous PTD and cervical length in a general population. MATERIAL AND METHODS: This study is a nested case-control study within the CERVIX study. The CERVIX study evaluated the ability of cervical length screening with transvaginal ultrasound to identify women at risk of PTD. In the present study, women who delivered spontaneously <34 weeks (n = 61) were compared with a control group of women who delivered at full term (39 + 0 to 40 + 6 gestational weeks, n = 205). Archived serum samples were analyzed with RT-qPCR for miRNA expression levels of let-7a-5p, miR-150-5p, miR-15b-5p, miR-185-5p, miR-191-5p, miR-19b-3p, miR-23a-3p, miR-374a-5p, and miR-93-5p. The mean relative expression was compared between the groups. Sub-analyses were performed for women delivering <32, <30, and <28 weeks versus the full-term group. RESULTS: The analyzed miRNAs were not significantly differentially expressed in women delivering <34 weeks compared to those delivering at full term. MiR-191-5p and miR-93-5p were significantly overexpressed in women who delivered <32 weeks, and further increase in fold change was observed with decreasing gestational age at delivery. The level of miR-15b-5p was significantly higher in women delivering at <30 weeks compared to those delivering at full term. CONCLUSIONS: Our study shows that overexpression of miR-93-5p, miR-15b-5p, and miR-191-5p in serum at early gestation is associated with spontaneous PTD in a general population. Further research is needed to evaluate the potential of these miRNAs as future biomarkers for spontaneous PTD, as well as their pathophysiological role in spontaneous PTD.

11.
J Pain Res ; 17: 2311-2324, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38974829

RESUMEN

Introduction: Herpes Zoster in humans is the result of varicella zoster virus (VZV) infection. Injecting rats with varicella zoster virus produces pain similar to herpes zoster "shingles" pain in humans. . In a previous study, orofacial pain was induced by injecting the whisker pad of male rats with VZV and the pain response increased after attenuating neurexin 3 (Nrxn3) expression in the central amygdala. Neurons descend from the central amygdala to the lateral parabrachial nucleus and orofacial pain signals ascend to the lateral parabrachial nucleus. GABAergic neurons within the central amygdala regulate pain by inhibiting activity within the lateral parabrachial nucleus. Attenuating Nrxn3 expression in the central amygdala increased GABA release in the lateral parabrachial nucleus suggesting Nrxn3 controls pain by regulating GABA release. Nrxn3 can also control synaptic connections between neurons, and we hypothesized that Nrxn3 knockdown in the central amygdala would reduce the number of GABAergic synaptic connections in the lateral parabrachial nucleus and increase VZV associated pain. Methods: To test this idea, the number of synaptic connections between GABAergic cells of the central amygdala and excitatory or dynorphin positive neurons within the lateral parabrachial nucleus were quantitated after infusion of a virus expressing synaptophysin. Synaptophysin is a synaptic vesicle protein that labels neuronal synaptic connections. These connections were measured in rats with and without whisker pad injection of VZV and knockdown of Nrxn3 within the central amygdala. Orofacial pain was measured using a place escape avoidance paradigm. Results: GABAergic synaptic connections were reduced in the lateral parabrachial nucleus after Nrxn3 knockdown. Rats with a reduction in the number of connections had an increase in VZV associated orofacial pain. Immunostaining with the pain marker prodynorphin indicated that the reduction in GABAergic connections was primarily associated with prodynorphin positive neurons. Discussion: The results suggest Nrxn3 reduces VZV associated orofacial pain, in part, by enhancing synaptic connections between GABA cells of the central amygdala and pain neurons within the lateral parabrachial nucleus.

12.
Artículo en Inglés | MEDLINE | ID: mdl-39063525

RESUMEN

INTRODUCTION: Public safety personnel (PSP) experience operational stress injuries (OSIs), which can put them at increased risk of experiencing mental health and functional challenges. Such challenges can result in PSP needing to take time away from the workplace. An unsuccessful workplace reintegration process may contribute to further personal challenges for PSP and their families as well as staffing shortages that adversely affect PSP organizations. The Canadian Workplace Reintegration Program (RP) has seen a global scale and spread in recent years. However, there remains a lack of evidence-based literature on this topic and the RP specifically. The current qualitative study was designed to explore the perspectives of PSP who had engaged in a Workplace RP due to experiencing a potentially psychologically injurious event or OSI. METHODS: A qualitative thematic analysis analyzed interview data from 26 PSP who completed the RP. The researchers identified five themes: (1) the impact of stigma on service engagement; (2) the importance of short-term critical incident (STCI) program; (3) strengths of RP; (4) barriers and areas of improvement for the RP; and (5) support outside the RP. DISCUSSION: Preliminary results were favorable, but further research is needed to address the effectiveness, efficacy, and utility of the RP. CONCLUSION: By addressing workplace reintegration through innovation and research, future initiatives and RP iterations can provide the best possible service and support to PSP and their communities.


Asunto(s)
Lugar de Trabajo , Humanos , Masculino , Adulto , Femenino , Lugar de Trabajo/psicología , Persona de Mediana Edad , Canadá , Investigación Cualitativa , Estrés Laboral/psicología , Grupo Paritario , Salud Laboral
13.
Hand (N Y) ; : 15589447241257964, 2024 Jun 13.
Artículo en Inglés | MEDLINE | ID: mdl-38869067

RESUMEN

BACKGROUND: Comminuted, markedly displaced distal radius fractures can cause instability requiring advanced stabilization with dorsal bridge plating. However, published complication rates of bridge plating widely vary. We hypothesize that complications of bridge plating of distal radius fractures are more prevalent than published rates. METHODS: A retrospective review was performed on all patients at an academic level I trauma center treated with a bridge plate for a distal radius fracture from 2014 to 2022. RESULTS: Sixty-five wrists were included in the final analysis: average age 53 years, male 51%, average plate retention 4 months, and average follow-up 6 months. Carpal tunnel release (CTR) was performed at time of primary procedure in 7 (10%) cases. Radial height, radial inclination, dorsal tilt, and ulnar variance were all significantly improved (P < .001). Grip strength, flexion, extension, and supination were significantly limited (P < .03). Twenty-one patients (32%) developed 35 major complications requiring unplanned reoperation, including mechanical hardware-related complication (15%), deep infection (11%), nonunion/delayed union (9%), adhesions (6%), median neuropathy (6%), symptomatic arthritis (5%), and tendon rupture (2%). Plate breakage occurred in 3 patients (5%) and was always localized over the central drill holes of the bridge plate. CONCLUSIONS: Major complications for bridge plating of distal radius fractures were higher at our institution than previously published. Plate breakage should prompt reconsideration of plate design to avoid drill holes over the wrist joint. Signs and symptoms of carpal tunnel syndrome should be carefully assessed at initial presentation, and consideration for concomitant CTR should be strongly considered.

14.
Cancers (Basel) ; 16(12)2024 Jun 12.
Artículo en Inglés | MEDLINE | ID: mdl-38927905

RESUMEN

Effective cancer therapy with limited adverse effects is a major challenge in the medical field. This is especially complicated by the development of acquired chemoresistance. Understanding the mechanisms that underlie these processes remains a major effort in cancer research. In this review, we focus on the dual role that Bid protein plays in apoptotic cell death via the mitochondrial pathway, in oncogenesis and in cancer therapeutics. The BH3 domain in Bid and the anti-apoptotic mitochondrial proteins (Bcl-2, Bcl-XL, mitochondrial ATR) it associates with at the outer mitochondrial membrane provides us with a viable target in cancer therapy. We will discuss the roles of Bid, mitochondrial ATR, and other anti-apoptotic proteins in intrinsic apoptosis, exploring how their interaction sustains cellular viability despite the initiation of upstream death signals. The unexpected upregulation of this Bid protein in cancer cells can also be instrumental in explaining the mechanisms behind acquired chemoresistance. The stable protein associations at the mitochondria between tBid and anti-apoptotic mitochondrial ATR play a crucial role in maintaining the viability of cancer cells, suggesting a novel mechanism to induce cancer cell apoptosis by freeing tBid from the ATR associations at mitochondria.

15.
Artículo en Inglés | MEDLINE | ID: mdl-38757714

RESUMEN

Introduction: Mindfulness interventions can improve a broad range of patient outcomes, but traditional mindfulness-based interventions are time and resource intensive. Emerging evidence indicates brief, single-session mindfulness interventions can also improve patient outcomes, and brief mindfulness interventions can be embedded into medical care pathways with minimal disruption. However, the direct impact of a brief mindfulness intervention on patients' pain while waiting in the clinic waiting room remains unexamined. Objective: A series of three, pilot, randomized controlled trials (RCTs) were conducted to examine the impact of a brief, audio-recorded, mindfulness intervention on patients' pain in the clinic waiting room. Method: Study 1 examined an 8-min mindfulness recording delivered before a provider visit; Study 2 examined a 5-min mindfulness recording after a provider visit; and Study 3 examined a 4-min mindfulness recording before a provider visit. Time- and attention-matched control conditions were used in each study. Studies 1 and 2 were conducted in an academic cancer hospital. Study 3 was conducted at a walk-in orthopedic clinic. Pain intensity was measured in each of the three studies. Anxiety and depression symptoms were measured in Studies 2 and 3. Pain unpleasantness was measured in Study 3. Results: A brief (i.e., 4- to 8-min), audio-recorded mindfulness intervention decreased patients' pain intensity in the clinic waiting room, whether delivered before (Study 1 Cohen's d=1.01, Study 3 Cohen's d=0.39) or after (Study 2 Cohen's d=0.89) a provider visit. Mindfulness had a significant effect on anxiety symptoms in both studies in which it was measured. No effect on depression symptoms was observed. Conclusions: Results from these three pilot RCTs indicate brief, audio-recorded, mindfulness interventions may be capable of quickly decreasing clinical symptoms. As such, embedding brief, audio-recorded, mindfulness interventions in clinic waiting rooms may have the potential to improve patient outcomes. The continued investigation of this intervention approach is needed. Clinical Trial Registrations: NCT04477278 and NCT06099964.

16.
Sci Total Environ ; 934: 172905, 2024 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-38703856

RESUMEN

Antibiotic resistance is increasingly recognized as a critical challenge affecting human, animal, and environmental health. Yet, environmental dynamics and transport of antibiotic resistance genes (ARGs) and microbial communities in karst and non-karst leachate following poultry litter land applications are not well understood. This study investigates impacts of broiler poultry litter application on the proliferation of ARGs (tetW, qnrS, ermB, sulI, and blaCTX-M-32), class 1 integron (intI1 i), and alterations in microbial communities (16S rRNA) within karst derived soils, which are crucial and under-researched systems in the global hydrological cycle, and non-karst landscapes. Using large, intact soil columns (45 cm diam. × 100 cm depth) from karst and non-karst landscapes, the role of preferential flow and ARG transport in leachate was enumerated following surface application of poultry litter and simulated rain events. This research demonstrated that in poultry litter amended karst soils, ARG (i.e., ermB and tetW) abundance in leachate increased 1.5 times compared to non-karst systems (p < 0.05), highlighting the influence of geological factors on ARG proliferation. Notably, microbial communities in karst soil leachate exhibited increased diversity and abundance, suggesting a potential linkage between microbial composition and ARG presence. Further, our correlation and network analyses identified relationships between leachate ARGs, microbial taxa, and physicochemical properties, underscoring the complex interplay in these environmentally sensitive areas. These findings illuminate the critical role of karst systems in shaping ARG abundance and pollutant dispersal and microbial community dynamics, thus emphasizing the need for landscape-specific approaches in managing ARG dissemination to the environment. This study provides a deeper understanding of hydrogeological ARG dynamics but also lays the groundwork for future research and strategies to mitigate ARG dissemination through targeted manure applications across agricultural landscapes.


Asunto(s)
Farmacorresistencia Microbiana , Aves de Corral , Microbiología del Suelo , Animales , Farmacorresistencia Microbiana/genética , Microbiota/efectos de los fármacos , Estiércol/microbiología , Suelo/química , Monitoreo del Ambiente , Genes Bacterianos
17.
J Cell Biol ; 223(7)2024 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-38717338

RESUMEN

Senataxin is an evolutionarily conserved RNA-DNA helicase involved in DNA repair and transcription termination that is associated with human neurodegenerative disorders. Here, we investigated whether Senataxin loss affects protein homeostasis based on previous work showing R-loop-driven accumulation of DNA damage and protein aggregates in human cells. We find that Senataxin loss results in the accumulation of insoluble proteins, including many factors known to be prone to aggregation in neurodegenerative disorders. These aggregates are located primarily in the nucleolus and are promoted by upregulation of non-coding RNAs expressed from the intergenic spacer region of ribosomal DNA. We also map sites of R-loop accumulation in human cells lacking Senataxin and find higher RNA-DNA hybrids within the ribosomal DNA, peri-centromeric regions, and other intergenic sites but not at annotated protein-coding genes. These findings indicate that Senataxin loss affects the solubility of the proteome through the regulation of transcription-dependent lesions in the nucleus and the nucleolus.


Asunto(s)
ADN Helicasas , Enzimas Multifuncionales , ARN Helicasas , ARN no Traducido , Humanos , Nucléolo Celular/metabolismo , Nucléolo Celular/genética , Daño del ADN , ADN Helicasas/metabolismo , ADN Helicasas/genética , ADN Ribosómico/genética , ADN Ribosómico/metabolismo , Enzimas Multifuncionales/metabolismo , Enzimas Multifuncionales/genética , Agregado de Proteínas , Proteostasis , Estructuras R-Loop/genética , ARN Helicasas/metabolismo , ARN Helicasas/genética , ARN no Traducido/genética , ARN no Traducido/metabolismo
18.
Psychol Rep ; : 332941241253599, 2024 May 13.
Artículo en Inglés | MEDLINE | ID: mdl-38739905

RESUMEN

Canadian universities are experiencing a dramatic increase in enrollment of students from diverse backgrounds. Evidence suggests many educators are not prepared to teach in multicultural contexts. Educators' lack of preparedness to teach in such contexts may lead them to develop burnout, which can negatively impact their mental and professional well-being. However, self-efficacy beliefs may buffer against job burnout and promote mental well-being. Hence, multicultural efficacy is an important factor for teaching in multicultural settings. In this study, we examined the relationships of multicultural efficacy with university instructors' burnout and mental well-being. A total of 158 faculty and sessional instructors were recruited from four prominent higher education institutions in Canada. The results revealed that multicultural efficacy was significantly related to the Personal Accomplishment facet of burnout and mental well-being, even after controlling variance accounted for by demographics, job-related characteristics, teaching self-efficacy, and colour-blind racial attitudes. These findings indicate that domain specific multicultural efficacy and general teaching self-efficacy are distinct constructs. Further, findings may inform the development of training opportunities and diversity-related workshops to enhance university instructors' awareness of diversity, social justice issues, and multicultural efficacy to better equip them for instruction in multicultural classrooms.

19.
J Mol Endocrinol ; 73(1)2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38639976

RESUMEN

The prostanoid G protein-coupled receptor (GPCR) EP2 is widely expressed and implicated in endometriosis, osteoporosis, obesity, pre-term labour and cancer. Internalisation and intracellular trafficking are critical for shaping GPCR activity, yet little is known regarding the spatial programming of EP2 signalling and whether this can be exploited pharmacologically. Using three EP2-selective ligands that favour activation of different EP2 pathways, we show that EP2 undergoes limited agonist-driven internalisation but is constitutively internalised via dynamin-dependent, ß-arrestin-independent pathways. EP2 was constitutively trafficked to early and very early endosomes (VEE), which was not altered by ligand activation. APPL1, a key adaptor and regulatory protein of the VEE, did not impact EP2 agonist-mediated cAMP. Internalisation was required for ~70% of the acute butaprost- and AH13205-mediated cAMP signalling, yet PGN9856i, a Gαs-biased agonist, was less dependent on receptor internalisation for its cAMP signalling, particularly in human term pregnant myometrial cells that endogenously express EP2. Inhibition of EP2 internalisation partially reduced calcium signalling activated by butaprost or AH13205 and had no effect on PGE2 secretion. This indicates an agonist-dependent differential spatial requirement for Gαs and Gαq/11 signalling and a role for plasma membrane-initiated Gαq/11-Ca2+-mediated PGE2 secretion. These findings reveal a key role for EP2 constitutive internalisation in its signalling and potential spatial bias in mediating its downstream functions. This, in turn, could highlight important considerations for future selective targeting of EP2 signalling pathways.


Asunto(s)
Proteínas de Unión al GTP , Subtipo EP2 de Receptores de Prostaglandina E , Transducción de Señal , Femenino , Humanos , Embarazo , Alprostadil/análogos & derivados , Alprostadil/farmacología , Alprostadil/metabolismo , AMP Cíclico/metabolismo , Endosomas/metabolismo , Proteínas de Unión al GTP/metabolismo , Células HEK293 , Miometrio/metabolismo , Transporte de Proteínas , Subtipo EP2 de Receptores de Prostaglandina E/metabolismo
20.
J Phys Chem A ; 128(17): 3387-3395, 2024 May 02.
Artículo en Inglés | MEDLINE | ID: mdl-38626401

RESUMEN

New ideal-gas thermochemistry Cp°(T), H°(T), S°(T), and G°(T) are predicted for 53 species involved in the thermal destruction of perfluorinated sulfonic acids (PFSAs) ranging from C2 to C8 in perfluorinated alkyl chain length. Species were selected by considering both the pyrolytic and oxidative pathways of PFSA destruction. After the sulfur-containing moieties are removed, subsequent reactions largely involve species from a prior set of thermochemistry for the thermal destruction of perfluorinated carboxylic acids (Ram et al., J. Phys. Chem. A, 2024, 128, 7, 1313-1326). Enthalpies of formation at 0 K are computed using a new isogyric reaction scheme. Rigid-rotor harmonic-oscillator partition functions were calculated over a 200-2500 K temperature range using rovibrational properties at G4 (≤C3S1 species) and M06-2X-D3(0)/def2-QZVPP (≥C4S1 species), employing the 1D hindered rotor approximation to correct for torsional modes. Seven-coefficient NASA polynomial fits are reported in standardized formats. Bond dissociation energies and important reaction equilibria are examined to provide insights into the reactivity of potentially persistent species. Extrapolated NASA polynomials are also systematically predicted for 126 species larger than C8/C8S1 in size, allowing reasonably accurate estimates of thermochemistry without the need for expensive electronic structure calculations.

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