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1.
AIDS Behav ; 2024 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-38839725

RESUMO

In Sub-Saharan Africa, efficacy trials of brief interventions to reduce unhealthy drinking among persons living with HIV (PLWH) have yielded mixed results. A better understanding of the perceptions of drinking, especially by PLWH, and how drinking is talked about at HIV treatment clinics in this setting, may guide more optimal designs for future trials. We conducted a qualitative study at an HIV treatment clinic in South Western Uganda to better understand perceptions of drinking, how drinking is talked about, and perceptions of interventions, especially a protocolled screening and brief intervention (SBI) for unhealthy drinking among PLWH. We conducted in-depth interviews with 17 PLWH who engaged in unhealthy drinking and 6 health workers, and one focus group discussion with 3 community advisory-board members. We performed manual preliminary data analysis and computer-assisted detailed thematic analysis to identify emergent themes. Four themes emerged: perceptions of alcohol use in the general population; perceptions of alcohol use in PLWH; interaction between PLWH and health workers about alcohol use; perceptions of interventions for unhealthy drinking including SBI. Unhealthy drinking was seen as a problem in the general population and among those with HIV, where it was negatively perceived. Communication about drinking was done by counselors, but doctors participated in screening for unhealthy alcohol use. Messages about drinking covered reduction and abstinence. Participants expressed positive attitudes towards SBI and preference for person-delivered SBI over technological alternatives. A protocolled SBI for unhealthy alcohol use among PLWH would be well-received but successful implementation may depend on mode of delivery.

2.
Int J Emerg Med ; 17(1): 61, 2024 May 03.
Artigo em Inglês | MEDLINE | ID: mdl-38698343

RESUMO

BACKGROUND: Emergency department (ED) crowding is a common healthcare issue with multiple causes. One important knowledge area is understanding where patients arrived from and what care they received prior to ED admission. This information could be used to inform strategies to provide care for low acuity patients outside of the hospital and reduce unnecessary ED admissions. The aim of this scoping review was to provide a comprehensive overview of global published research examining the acute care trajectory of all ED patients. METHODS: The scoping review was performed according to the JBI Manual for Evidence Synthesis and the PRISMA-SCR checklist. A comprehensive literature search was performed to identify studies describing where patients arrived from and/or whose pathway of care was before an ED visit. The search was conducted in MEDLINE, Embase, and the Cochrane Library from inception through December 5th, 2022. Two reviewers independently screened the records. RESULTS: Out of the 6,465 records screened, 14 studies from Australia, Canada, Haiti, Norway, Sweden, Switzerland, Belgium, Indonesia, and the UK met the inclusion criteria. Four studies reported on where patients physically arrived from, ten reported how patients were transported, six reported who referred them, and six reported whether medical care or advice was sought prior to visiting an ED. CONCLUSION: This scoping review revealed a lack of studies describing patients' pathways to the ED. However, studies from some countries indicate that a relatively large proportion of patients first seek care or guidance from a primary care physician (PCP) before visiting an ED. However, further research and published data are needed. To improve the situation, we recommend the development and implementation of a template for the uniform reporting of factors outside the ED, including where the patient journey began, which healthcare facilities they visited, who referred them to the ED, and how they arrived.

4.
Am Surg ; : 31348241256067, 2024 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-38794779

RESUMO

Background: Unplanned readmission to intensive care units (UR-ICU) in trauma is associated with increased hospital length of stay and significant morbidity and mortality. We identify independent predictors of UR-ICU and construct a nomogram to estimate readmission probability. Materials and Methods: We performed an IRB-approved retrospective case-control study at a Level I trauma center between January 2019 and December 2021. Patients with UR-ICU (n = 175) were matched with patients who were not readmitted (NR-ICU) (n = 175). Univariate and multivariable binary linear regressionanalyses were performed (SPSS Version 28, IBM Corp), and a nomogram was created (Stata 18.0, StataCorp LLC). Results: Demographics, comorbidities, and injury- and hospital course-related factors were examined as potential prognostic indicators of UR-ICU. The mortality rate of UR-ICU was 22.29% vs 6.29% for NR-ICU (P < .001). Binary linear regression identified seven independent predictors that contributed to UR-ICU: shock (P < .001) or intracranial surgery (P = .015) during ICU admission, low hematocrit (P = .001) or sedation administration in the 24 hours before ICU discharge (P < .001), active infection treatment (P = .192) or leukocytosis on ICU discharge (P = .01), and chronic obstructive pulmonary disease (COPD) (P = .002). A nomogram was generated to estimate the probability of UR-ICU and guide decisions on ICU discharge appropriateness. Discussion: In trauma, UR-ICU is often accompanied by poor outcomes and death. Shock, intracranial surgery, anemia, sedative administration, ongoing infection treatment, leukocytosis, and COPD are significant risk factors for UR-ICU. A predictive nomogram may help better assess readiness for ICU discharge.

5.
Am Surg ; : 31348241256085, 2024 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-38816892

RESUMO

Chest tube thoracostomy (CTT) is essential for lung expansion, but protocol discrepancies exist across trauma centers. This prospective study compared CTT protocols between an urban (center 1) and rural (center 2) level 1 trauma center in East Tennessee from June to August 2023. 66 trauma patients required CTT (51 from center 1 and 15 from center 2). Diagnostic practices and post-pull chest X-rays (CXR) differed significantly. Center 1 favored CXR for diagnosis (P = 0.012), while center 2 relied more on clinical presentation (P = 0.012). Post-pull CXR was less common at center 2 (P = 0.012). Center 2 had lower Glasgow Coma Scale scores (P = 0.028), shorter tube duration (P = 0.044), and more needle thoracostomy use (P = 0.393). These findings underscore the need for regional protocols considering pre-arrival factors, hospital practices, and injury patterns. Protocol adjustments aim to improve adherence and patient outcomes, with ongoing data collection exploring factors influencing protocol evolution.

6.
Dev Cell ; 2024 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-38810653

RESUMO

Differentiation of murine epidermal stem/progenitor cells involves the permanent withdrawal from the cell cycle, the synthesis of various protein and lipid components for the cornified envelope, and the controlled dissolution of cellular organelles and nuclei. Deregulated epidermal differentiation contributes to the development of various skin diseases, including skin cancers. With a genome-wide shRNA screen, we identified vesicle-associated membrane protein 2 (VAMP2) as a critical factor involved in skin differentiation. Deletion of VAMP2 leads to aberrant skin stratification and enucleation in vivo. With quantitative proteomics, we further identified an autophagy protein, focal adhesion kinase family interacting protein of 200 kDa (FIP200), as a binding partner of VAMP2. Additionally, we showed that both VAMP2 and FIP200 are critical for murine keratinocyte enucleation and epidermal differentiation. Loss of VAMP2 or FIP200 enhances cutaneous carcinogenesis in vivo. Together, our findings identify important molecular mechanisms underlying epidermal differentiation and skin tumorigenesis.

7.
PLoS One ; 19(5): e0303312, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38814957

RESUMO

There are two species of free-roaming feral equids in North America: horses (Equus caballus) and donkeys or "burros" (E. asinus). Both species were introduced as domestic animals to North America in the early 1500s and currently inhabit rangelands across the western United States, Canada, and all continents except Antarctica. Despite their global distribution, little is known about their fine scale spatial ecology. Contemporary research tools to assess space use include global positioning system (GPS) tracking collars, but older models were problematic due to stiff collar belting causing poor fit. We tested modern designs of GPS collars on n = 105 horses and n = 60 burros for 4 years in five populations (3 horse, 2 burro) across the western United States, to assess whether collars posed welfare risks to horses or burros. We found no difference in survival of collared versus uncollared mares and jennies, and no difference in survival of their foals. In 4036 of 4307 observations for horses (93.7%) and 2115 of 2258 observations for burros (93.6%), collars were observed symmetrical, maintaining proper fit on the neck. Fur effects from collars (sweaty neck, indented fur, broken fur) were seen in 3% of horse observations and 25% of burro observations. Superficial effects (chafes and marks on skin surface) were seen in 2% of horse observations and 11% of burro observations; no severe effects from collars were seen. Body condition was not affected by collars; mean body condition of collared horses was 4.70 ± 0.54 (mean ± s.d) and 4.71 ± 0.65 for collared burros. Behavior results indicated minimal effects; collared horses stood slightly more than uncollared, and collared burros stood and foraged more in one population, but not in the other. For 6.3% of observations of horses and 6.4% of observations of burros, we found an effect of time wearing a collar on the cumulative sum of fur effects which increased over time (burros: rs = 0.87, P = <0.0001; horses: rs = 0.31, P = 0.002). Burros also showed an increase over time in the number of superficial effects, but horses did not. Collars occasionally moved into the wrong position, shifting forward over the ears; we observed this on 19 horses and 1 burro. Of those, most collars went over the ears in summer (n = 12). All collars were equipped with a remote release mechanism as well as a timed-release mechanism for redundancy, thus removed when observed in wrong position to avoid rubbing or discomfort. Our finding of no consequential physical effects in 98% of horse observations, and 89% of burro observations suggests the consequences of collars on free-roaming equid welfare and survival is biologically insignificant, although collars should be monitored regularly and continue to be equipped with a remote release mechanism to remove a collar if needed. With frequent welfare-driven, visual monitoring, collaring of free-roaming equids can be a safe and useful tool to increase our understanding of their spatial ecology, demography, habitat use, behavior, and interactions with other wildlife.


Assuntos
Equidae , Sistemas de Informação Geográfica , Telemetria , Animais , Equidae/fisiologia , Cavalos , Feminino , Masculino
8.
Artigo em Inglês | MEDLINE | ID: mdl-38769874

RESUMO

OBJECTIVE: Advanced-stage laryngeal squamous cell carcinoma is treated with primary surgery or chemoradiation. We aim to determine if there are differences in postoperative functional oral intake in primary (PL) versus salvage laryngectomees (SL). STUDY DESIGN: Retrospective cohort study. SETTING: Patients who underwent laryngectomy between 2011 and 2021. METHODS: We examined demographic, diagnostic, treatment, and swallow function data pre- and postoperatively. A follow-up survey was distributed to assess current swallow status. RESULTS: One hundred twenty-five patients were included. Preoperatively, 68.8% of patients reported dysphagia. Median functional oral intake score (FOIS) was 4.0 [interquartile range, IQR: 1.0-6.75]. The SL group had lower preop FOIS [2.0; IQR: 1.0-4.75] that did not reach significance compared to the PL group [4.5; IQR: 1.0-7.0] (P = .052). 73.4% of patients had a feeding tube. The PL group was more likely to have the tube removed [odds ratio, OR: 2.4; confidence interval, CI: 1.0-5.7]. The SL group was more likely to require feeding tube placement more than 6 months postop [OR: 6.9; CI: 1.65-32.6]. SL FOIS scores improved by 3 months postop to 5 (SL ΔFOIS = 3, P = .0150). PL scores improved to 7 [PL ΔFOIS = 2, P = .0005] at 12 to 15 months. Sixty-nine patients were contacted for a follow-up survey and 16 completed this survey. 30.4% patients reported dietary restrictions (mean 4.4 years postop). CONCLUSION: Patients undergoing SL appear to obtain similar swallow outcomes compared to PL at 3 to 6 months postlaryngectomy, but plateau. The PL group continues to improve up to 1 year postoperatively. Fifty percent of patients report on-going dysphagia after 5 years.

9.
Arch Sex Behav ; 53(4): 1499-1518, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38429569

RESUMO

Unhealthy alcohol use and sexually transmitted infections (STIs) are significant public health concerns for US college students. Because alcohol use and condomless sex often co-occur in this population, alcohol-associated condomless sex has been identified as a behavioral intervention target. Existing theoretical frameworks have not garnered sufficient empirical support to serve as the foundation for interventions. The primary goal of the current study was to use a mixed-methods approach to develop a model of college student alcohol-associated condomless sex that combines elements from well-established health behavior theories. In Aim 1, multilevel modeling was used to predict condomless vaginal sex in a sample of heterosexual college student drinkers (N = 53). Aim 2 consisted of in-depth interviews (n = 18) to gather perceptions about the role of alcohol in sexual activity and identify supplemental constructs omitted from theories in Aim 1. The multilevel model explained a significant proportion of variance in condomless vaginal sex at the between- and within-person level. Themes derived from the in-depth interviews identified complementary elements of condom use decision-making. Findings from both aims were synthesized to construct a combined model of alcohol-associated condomless sex. This model can be further refined and ultimately serve as the foundation of an alcohol-STI prevention-intervention.


Assuntos
Infecções por HIV , Infecções Sexualmente Transmissíveis , Feminino , Humanos , Sexo sem Proteção/prevenção & controle , Comportamento Sexual , Infecções Sexualmente Transmissíveis/prevenção & controle , Infecções Sexualmente Transmissíveis/epidemiologia , Sexo Seguro , Estudantes , Preservativos , Infecções por HIV/epidemiologia
10.
Am Surg ; 90(6): 1775-1777, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38520292

RESUMO

Unplanned admission to an intensive care unit (ICU) is a trauma quality improvement indicator associated with increased morbidity, mortality, and hospital resource usage. We identified demographics, injuries, and other clinical factors between early ICU admission, <72 hrs after admission (EAd), and delayed admission, >72 hrs (DelAd) from a medical/surgical floor. 146 trauma patients admitted to ICU at a level 1 trauma center from January 2020 to March 2023 met inclusion criteria and were divided into EAd and DelAd. No statistical differences in injury mechanism or severity were observed. Delayed admission demonstrated higher mortality (P = .001), more frequent decline in GCS (P = .045), and initiation of anticoagulation (P = .002). Abnormal EKG, orthopedic surgery during admission, and home anticoagulant and antidepressant use were statistically significant in identifying patients requiring early ICU admission.


Assuntos
Unidades de Terapia Intensiva , Admissão do Paciente , Ferimentos e Lesões , Humanos , Estudos Retrospectivos , Ferimentos e Lesões/terapia , Ferimentos e Lesões/mortalidade , Ferimentos e Lesões/complicações , Masculino , Feminino , Pessoa de Meia-Idade , Unidades de Terapia Intensiva/estatística & dados numéricos , Adulto , Admissão do Paciente/estatística & dados numéricos , Centros de Traumatologia , Fatores de Tempo , Idoso
11.
Am Surg ; 90(7): 1866-1871, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38520278

RESUMO

BACKGROUND: This study analyzed the overall incidence of delirium, comorbid conditions, injury patterns, and pharmacological risk factors for the development of delirium in an alert, geriatric trauma population. METHODS: IRB-approved, prospective, consecutive cohort series at two Southeastern Level 1 trauma centers from June 11 to August 15, 2023. Delirium was assessed using the Confusion Assessment Method (CAM) score. Comorbidities and medications were detailed from electronic medical records. Inclusion criteria: age ≥55, GCS ≥14, and ICU admission for trauma. Patients on a ventilator were excluded. Data was analyzed using SPSS version 28 (Armonk, NY: IBM Corp). RESULTS: In total, 196 patients met inclusion criteria. Incidences of delirium for Hospital 1 (n = 103) and Hospital 2 (n = 93) were 15.5% and 12.9%, respectively, with an overall incidence of 14.3% and with no statistical differences between hospitals (P = .599). CAD, CKD, dementia, stroke history, and depression were statistically significant risk factors for developing delirium during ICU admission. Inpatient SSRI/SNRIs, epinephrine/norepinephrine, and lorazepam were significant risk factors. Injury patterns, operative intervention, and use of lidocaine infusions and gabapentin were not statistically significant in delirium development. Using binary linear regression (BLR) analysis, independent risk factors for delirium were dementia, any stage CKD, home SSRI/SRNI prescription, any spine injury and cerebrovascular disease, or injury. DISCUSSION: Comorbidities of CAD, CHF, CKD, and depression, and these medications: home lorazepam and ICU epinephrine/norepinephrine statistically are more common in patients developing delirium. Dementia, CKD, home SSRI/SRNI and stroke/cerebrovascular disease/injury, and spine injuries are independent predictors by BLR.


Assuntos
Delírio , Unidades de Terapia Intensiva , Ferimentos e Lesões , Humanos , Incidência , Fatores de Risco , Idoso , Feminino , Masculino , Delírio/epidemiologia , Delírio/etiologia , Unidades de Terapia Intensiva/estatística & dados numéricos , Estudos Prospectivos , Ferimentos e Lesões/epidemiologia , Ferimentos e Lesões/complicações , Idoso de 80 Anos ou mais , Centros de Traumatologia , Pessoa de Meia-Idade , Comorbidade
12.
J Pediatr ; 270: 114019, 2024 Mar 19.
Artigo em Inglês | MEDLINE | ID: mdl-38514003

RESUMO

Pediatric fellowship programs have conducted virtual interviews since the start of the COVID-19 pandemic in 2020. In this national survey of fellowship program directors and fellows interviewed in-person and virtually, fellowship program directors and fellows formed accurate impressions, regardless of format, but our data did not clearly support one interview format over another.

13.
Am Surg ; 90(6): 1791-1793, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38509028

RESUMO

Surgical palliative care (PC) facilitates communication between surgeons and patients/family about prognosis, symptom control, and therapeutic goals. Surgical critical care (SCC) fellows are at the forefront of the intensive care team; thus, we aim to assess previous and ongoing experiences in delivering PC by surveying fellows at a large academic center. Seventeen surveys were completed in which 59% of fellows reported no previous PC education. Six fellows (35%) reported participating in goals of care/end-of-life (GOC/EOL) discussions "a few times a year" during residency, while 41% responded the same for transitioning patients to comfort-focused care (CFC). When asked if respondents felt comfortable facilitating GOC/EOL discussions prior to fellowship, 7 (41%) answered "disagree" or "strongly disagree." Most fellows reported that more training in navigating GOC/EOL discussions (88%) and transitioning patients to CFC (76%) is needed. This assessment demonstrates variability in fellows' prior PC exposure and a strong desire for more structured training.


Assuntos
Centros Médicos Acadêmicos , Cuidados Críticos , Bolsas de Estudo , Avaliação das Necessidades , Cuidados Paliativos , Humanos , Inquéritos e Questionários , Educação de Pós-Graduação em Medicina/métodos , Internato e Residência , Feminino , Cirurgia Geral/educação , Masculino , Cirurgia de Cuidados Críticos
14.
Artigo em Inglês | MEDLINE | ID: mdl-38409998

RESUMO

Compared to the large body of maternal mental health research for other pediatric disorders, we know far less about the experience of mothers of children with 22q11DS. This study investigates the coping methods, protective factors, and mental health of this population. These findings might lead to better support for 22q11DS maternal mental health. An international sample of 71 mothers (M = 40.5 years) of children with 22q11DS (M = 9.2 years) was recruited and completed an online survey assessing maternal mental health (symptoms of depression, anxiety, traumatic stress, general stress, and alcohol consumption), coping methods, and mental health protective factors (social support, dyadic adjustment, parenting competence). Maternal ratings of child mental health symptoms were also obtained. Mothers' self-report revealed a high percentage who screened positive for elevated levels of general stress (69%), hazardous alcohol consumption (30.9%), traumatic stress (33.8%), anxiety (26.8%), and depression (26.8%). After controlling for demographic variables and child mental health symptoms, maternal self-reported maladaptive coping methods were positively associated with maternal symptoms of depression, anxiety, stress, and traumatic stress. Reducing maladaptive coping methods may be a promising intervention for improving mental health in mothers of children with 22q11DS.

15.
J Lipid Res ; 65(3): 100503, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38246235

RESUMO

Circulating levels of the soluble ligand-binding ectodomain of the LDL receptor (sLDLR) that is proteolytically cleaved from the cell surface have been shown to correlate with plasma triglycerides, but the lipid and lipoprotein effects of longitudinal changes in sLDLR have not been examined. We sought to assess associations between changes in sLDLR and detailed lipoprotein measurements between baseline and 6 months in participants in the DIETFITS (Diet Intervention Examining The Factors Interacting with Treatment Success) weight loss trial who were randomly assigned to the low-fat (n = 225) or low-carbohydrate (n = 236) diet arms. sLDLR was assayed using a proteomic procedure, lipids and apoprotein (apo) B and apoAI were measured by standard assays, and lipoprotein particle subfractions were quantified by ion mobility methodology. Changes in sLDLR were significantly positively associated with changes in plasma cholesterol, triglycerides, apoB, large-sized and medium-sized VLDL, and small and very small LDL, and inversely with changes in large LDL and HDL. The lipoprotein subfraction associations with sLDLR were independent of age, sex, diet, and BMI, but all except for large LDL were reduced to insignificance when adjusted for triglyceride change. Principal component analysis identified three independent clusters of changes in lipoprotein subfractions that accounted for 78% of their total variance. Change in sLDLR was most strongly correlated with change in the principal component that was loaded positively with large VLDL and small and very small LDL and negatively with large LDL and HDL. In conclusion, sLDLR is a component of a cluster of lipids and lipoproteins that are characteristic of atherogenic dyslipidemia.


Assuntos
Lipoproteínas , Proteômica , Humanos , Triglicerídeos , Receptores de LDL , Dieta , Redução de Peso , Lipoproteínas LDL , Lipoproteínas VLDL
16.
J Am Coll Surg ; 238(4): 762-767, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38193566

RESUMO

BACKGROUND: Better means of identifying patients with increased cardiac complication (CC) risk is needed. Coronary artery calcification (CAC) is reported on routine chest CT scans. We assessed the correlation of CAC and CCs in the geriatric trauma population. STUDY DESIGN: A prospective, observational study of patients 55 years and older who had chest CT scan from May to September 2022 at a level 1 trauma center. Radiologists scored CAC as none, mild, moderate, or severe. None-to-mild CAC (NM-CAC) and moderate-to-severe CAC (MS-CAC) were grouped and in-hospital CCs assessed (arrhythmia, ST elevation myocardial infarction [STEMI], non-STEMI, congestive heart failure, pulmonary edema, cardiac arrest, cardiogenic shock, and cardiac mortality). Univariate and bivariate analyses were performed. RESULTS: Five hundred sixty-nine patients had a chest CT, of them 12 were excluded due to missing CAC severity. Of 557 patients, 442 (79.3%) had none-to-mild CAC and 115 (20.7%) has MS-CAC; the MS-CAC group was older (73.3 vs 67.4 years) with fewer male patients (48.7% vs 54.5%), had higher cardiac-related comorbidities, and had higher abbreviated injury scale chest injury scores. The MS-CAC group had an increased rate of CC (odds ratio [OR] 1.81, p = 0.016). Cardiac complications statistically more common in MS-CAC were congestive heart failure (OR 3.41, p = 0.003); cardiogenic shock (OR 3.3, p = 0.006); non-STEMI I or II (OR 2.8, p = 0.017); STEMI (OR 5.9, p = 0.029); and cardiac-caused mortality (OR 5.27, p = 0.036). No statistical significance between pulmonary edema (p = 0.6), new-onset arrhythmia (p = 0.74), or cardiac arrest (p = 0.193). CONCLUSIONS: CAC as reported on chest CT scans demonstrates a significant correlation with CC and should warrant additional cardiac monitoring.


Assuntos
Doença da Artéria Coronariana , Parada Cardíaca , Insuficiência Cardíaca , Edema Pulmonar , Infarto do Miocárdio com Supradesnível do Segmento ST , Calcificação Vascular , Idoso , Humanos , Masculino , Arritmias Cardíacas/complicações , Angiografia Coronária/efeitos adversos , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/diagnóstico por imagem , Estudos Prospectivos , Edema Pulmonar/complicações , Fatores de Risco , Choque Cardiogênico/complicações , Infarto do Miocárdio com Supradesnível do Segmento ST/complicações , Calcificação Vascular/complicações , Calcificação Vascular/diagnóstico por imagem , Calcificação Vascular/epidemiologia , Pessoa de Meia-Idade , Feminino
17.
Am J Psychiatry ; 181(2): 153-165, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-37434487

RESUMO

OBJECTIVE: The authors investigated cortico-striatal reactivity to drug cues (as compared with neutral and food cues), drug cue reappraisal, food cue savoring, and their correlations with heroin craving in individuals with heroin use disorder compared with healthy control subjects. METHODS: Cross-sectional changes in functional MRI blood-oxygen-level-dependent signal during a novel cue reactivity task were assessed in 32 individuals with heroin use disorder (mean age, 40.3 years; seven women) and 21 age- and sex-matched healthy control subjects (mean age, 40.6 years; eight women). RESULTS: Drug cue reactivity (vs. neutral cues) was significantly higher in the nucleus accumbens in the heroin use disorder group compared with the control group and nominally significantly higher in the orbitofrontal cortex (OFC); ventromedial prefrontal cortex (vmPFC) activity positively correlated with drug craving. Drug cue reactivity (vs. salient food cues) was also higher in the inferior frontal gyrus (IFG) in the heroin use disorder group compared with the control group. Drug reappraisal and food savoring (vs. passive viewing) showed increased IFG and supplementary motor area activity in all participants; in the heroin use disorder group, higher IFG/dorsolateral PFC (dlPFC) activity during drug reappraisal and rostral anterior cingulate cortex (ACC) activity during food savoring were associated with lower drug cue-induced craving and longer treatment, respectively. A direct comparison of regulation of reactivity to both salient cues revealed widespread group differences such that drug reappraisal activity was higher in the heroin use disorder group and food savoring activity was higher in the control group in both cortical (e.g., OFC, IFG, ACC, vmPFC, and insula) and subcortical (e.g., dorsal striatum and hippocampus) regions. Higher drug reappraisal versus food savoring in the dlPFC was associated with higher self-reported methadone dosage in the heroin use disorder group. CONCLUSIONS: The results demonstrate cortico-striatal upregulation during drug cue exposure and impaired reactivity during processing of alternative non-drug rewards in the heroin use disorder group. Normalizing cortico-striatal function by reducing drug cue reactivity and enhancing natural reward valuation may inform therapeutic mechanisms for reducing drug craving and seeking in heroin addiction.


Assuntos
Encéfalo , Dependência de Heroína , Humanos , Feminino , Adulto , Fissura , Heroína , Sinais (Psicologia) , Estudos Transversais , Imageamento por Ressonância Magnética/métodos
19.
Matern Child Nutr ; 20(2): e13612, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38143422

RESUMO

Children under-5 years of age are particularly vulnerable to severe acute malnutrition (SAM), and the risk factors associated with relapse to SAM are poorly understood. Possible causes are asymptomatic or symptomatic infection with enteric pathogens, with contaminated food as a critical transmission route. This cross-sectional study comprised a household survey with samples of child food (n = 382) and structured observations of food preparation (n = 197) among children aged 6-59 months that were discharged from treatment in community management of acute malnutrition (CMAM) programmes in South Sudan. We quantified Escherichia coli and total coliforms (TCs), measured in colony forming units per g of food (CFU/g), as indicators of microbial contamination of child food. A modified hazard analysis critical control point (HACCP) approach was utilised to determine critical control points (CCPs) followed by multivariate logistic regression analysis to understand the risk factors associated with contamination. Over 40% (n = 164) of samples were contaminated with E. coli (43% >0 E. coli CFU/g, 95% CI 38%-48%), and 90% (n = 343) had >10 TCs (CFU/g) (>10 TC CFU/g, 95% CI 87%-93%). Risk factors associated (p < 0.05) with child food contamination included if the child fed themselves (9.05 RR, 95% CI [3.18, 31.16]) and exposure to animals (2.63 RR, 95% CI [1.33, 5.34]). This study highlights the risk factors and potential control strategies that can support interventions that reduce food contamination exposure in young children and help further protect those that are highly vulnerable to recurrent exposure to enteric pathogens.


Assuntos
Contaminação de Alimentos , Desnutrição , Pré-Escolar , Humanos , Lactente , Estudos Transversais , Escherichia coli , Análise de Perigos e Pontos Críticos de Controle , Alta do Paciente , Fatores de Risco , Desnutrição Aguda Grave/terapia , Sudão do Sul/epidemiologia
20.
Nutrients ; 15(23)2023 Nov 21.
Artigo em Inglês | MEDLINE | ID: mdl-38068713

RESUMO

A non-randomized prospective cohort study was conducted in 2022 to compare recovery rate and length of stay (LoS) for acutely malnourished children treated under South Sudan's standard Community Management of Acute Malnutrition (CMAM) protocol and a COVID-modified protocol. Children aged 6-59 months received acute malnutrition (AM) treatment under the standard or modified protocol (mid-upper-arm circumference-only entry/exit criteria and simplified dosing). Primary (recovery rate and LoS) were compared for outpatient therapeutic (OTP) and therapeutic supplementary feeding programs (TSFP) using descriptive statistics and mixed-effects models. Children admitted to OTP under both protocols were similar in age and sex; children admitted to TSFP were significantly older under the modified protocol than the standard protocol. Shorter LoS and higher recovery rates were observed under the modified protocol for both OTP (recovery: 93.3% vs. 87.2%; LoS: 38.3 vs. 42.8 days) and TSFP (recovery: 79.8% vs. 72.7%; LoS: 54.0 vs. 61.9 days). After adjusting for site and child characteristics, neither differences in adjusted odds of recovery [OTP: 2.63; TSFP 1.80] nor LoS [OTP -10.0; TSFP -7.8] remained significant. Modified protocols for AM performed well. Adjusted models indicate similar treatment outcomes to the standard protocol. Adopting simplified protocols could be beneficial post-pandemic; however, recovery and relapse will need to be monitored.


Assuntos
COVID-19 , Desnutrição , Desnutrição Aguda Grave , Criança , Humanos , Lactente , Sudão do Sul , Estudos Prospectivos , Desnutrição Aguda Grave/terapia , COVID-19/terapia , Desnutrição/terapia , Protocolos Clínicos
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