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Effects of photobiomodulation therapy (PBMT) over endothelial function in healthy individuals: a preliminary crossover clinical trial

Lasers Med Sci. 2023 Apr 19;38(1):104. doi: 10.1007/s10103-023-03762-w.

ABSTRACT

Photobiomodulation therapy (PBMT) causes stimulatory effects that raise cell metabolism. The study aimed to evaluate the effects of PBMT on the endothelial function of healthy individuals. It was a controlled, randomized, crossover, triple-blind trial with 22 healthy volunteers (female: 77.3%), aged 25.45 years which were randomly divided into three groups. PBMT with gallium-aluminum-arsenide (GaAlAs) diode laser (810 nm, continuous-wave mode, 1000 mW, 0.28 cm2) was applied over the radial and ulnar artery regions in two parallel spots: group 1-30 J (n = 22, 107 J/cm2) per spot; group 2-60 J (n = 22, 214 J/cm2) per spot; and group 3-placebo (n = 22, sham). The endothelial function was measured before and immediately after PBMT by the flow-mediated dilation technique (%FMD) with high-resolution ultrasound. Statistical analysis was made with ANOVA for repeated measures, the effect size was measured by Cohen’s d, and results are presented as mean and standard error (or 95% confidence intervals). A p-value < 0.05 was considered statistically significant. The %FMD increases 10.4% with 60 J (mean difference = 0.496 mm, 95% CI = 0.42 to 0.57, p < 0.001), 7.3% with 30 J (mean difference = 0.518 mm, 95% CI = 0.44 to 0.59, p < 0.001), and 4.7% with placebo (mean difference = 0.560 mm, 95% CI = 0.48 to 0.63, p < 0.001). We found a small effect size (p = 0.702; d de Cohen = 0.24) without statistical difference between interventions. PBMT with the energy density of 60 J and 30 J did not improve endothelial function.Trial registration number: NCT03252184 (01/09/2017).

PMID:37072603 | DOI:10.1007/s10103-023-03762-w

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Fetal aortic isthmus Doppler assessment to predict the adverse perinatal outcomes associated with fetal growth restriction: systematic review and meta-analysis

Arch Gynecol Obstet. 2023 Apr 19. doi: 10.1007/s00404-023-06963-4. Online ahead of print.

ABSTRACT

PURPOSE: Fetal growth restriction (FGR) management and delivery planning is based on a multimodal approach. This meta-analysis aimed to evaluate the prognostic accuracies of the aortic isthmus Doppler to predict adverse perinatal outcomes in singleton pregnancies with FGR.

METHODS: PubMed, EMBASE, the Cochrane Library, ClinicalTrials.gov and Google scholar were searched from inception to May 2021, for studies on the prognostic accuracy of anterograde aortic isthmus flow compared with retrograde aortic isthmus flow in singleton pregnancy with FGR. The meta-analysis was registered on PROSPERO and was assessed according to PRISMA and Newcastle-Ottawa Scale. DerSimonian and Laird’s random-effect model was used for relative risks, Freeman-Tukey Double Arcsine for pooled estimates and exact method to stabilize variances and CIs. Heterogeneity was quantified using I2 statistics.

RESULTS: A total of 2933 articles were identified through the electronic search, of which 6 studies (involving 240 women) were included. The quality evaluation of studies revealed an overall acceptable score for study group selection and comparability and substantial heterogeneity. The risk of perinatal death was significantly greater in fetuses with retrograde Aortic Isthmus blood flow, with a RR of 5.17 (p value 0.00001). Similarly, the stillbirth rate was found to have a RR of 5.39 (p value 0.00001). Respiratory distress syndrome had a RR of 2.64 (p value = 0.03) in the group of fetuses with retrograde Aortic Isthmus blood flow.

CONCLUSION: Aortic Isthmus Doppler study may add information for FGR management. However, additional clinical trial are required to assess its applicability in clinical practice.

PMID:37072584 | DOI:10.1007/s00404-023-06963-4

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Social pathways to care: how community-based network ties shape the health care response of individuals with mental health problems

Soc Psychiatry Psychiatr Epidemiol. 2023 Apr 19. doi: 10.1007/s00127-023-02476-2. Online ahead of print.

ABSTRACT

PURPOSE: Mental health research has powerfully documented inequities related to characteristics, such as ethnicity and gender. Yet how and where disparities like unmet need occur have been more elusive. Drawing from a now modest body of research that deployed the Network Episode Model (NEM), we examine how individuals create patterns of response to mental health problems, influenced by the culture and resources embedded in their social networks.

METHODS: The Person-to-Person Health Interview Study (P2P; N ~ 2,700, 2018-2021) provides representative, community-based, NEM-tailored data. Both descriptive, latent class and multinomial regression analyses mark mental health care-seeking patterns, including individuals consulted and activities used, as well as the influence of the structure and cultural content of social networks.

RESULTS: Latent class analysis detected five pathways with good fit statistics. The Networked General Care Path (37.0%) and The Kin General Care Path (14.5%) differ only in whether friends are activated in using the general care sector. The Networked Multi-Sector Care Path (32.5%) and The Saturated Path (12.6%) involve family, friends, and both general and specialty care with only the latter expanding consultation to coworkers and clergy. The Null Path (3.3%), or no contacts, is not used as perceived problem severity increases. Network size and strength are associated with the more complex pathways that activate ties, respectively. Trust in doctors is associated with pathways that include specialty providers but not others at work or church. Race, age, and rural residence have specific pathway effects, while gender has no significant impact.

CONCLUSIONS: Social networks propel individuals with mental health problems into action. Tie strength and trust produce care responses that are fuller and more targeted. Considering the nature of homophily, results also suggest that majority status and college education are clearly implicated in networked pathways. Overall, findings support community-targeted rather than individually based efforts to increase service use.

PMID:37072564 | DOI:10.1007/s00127-023-02476-2

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Prediction model of lymph node metastasis posterior to the right recurrent laryngeal nerve

Eur Arch Otorhinolaryngol. 2023 Apr 19. doi: 10.1007/s00405-023-07946-6. Online ahead of print.

ABSTRACT

BACKGROUND: At present, it is still controversial whether lymph nodes posterior to the right recurrent laryngeal nerve (LN-prRLN) in papillary thyroid carcinoma (PTC) patients should be dissected. Failure to dissect metastatic lymph nodes results in continued metastasis from the positive lymph nodes to other regions. Our study aimed to establish a predictive model and predict the probability of metastasis of the lymph nodes posterior to the right recurrent laryngeal nerve (LNM-prRLN) in patients.

METHODS: A total of 309 patients underwent surgery for thyroid cancer between May 2019 and September 2022. The risk factors were identified by univariate and multivariate analyses, and statistically significant risk factors identified in the multivariate analysis were included in the nomogram. We used the calibration curve and the receiver operating characteristic (ROC) curve to verify the accuracy of the prediction model.

RESULTS: Multivariate analysis showed that irregular tumor margins (OR: 3.549, 95% CI 1.294-9.733, P = 0.014), extrathyroidal extension (OR: 4.507, 95% CI 1.694-11.993, P = 0.003), maximum tumor diameter > 1 cm (OR: 5.729, 95% CI 2.617-12.542, P < 0.001), overweight status (OR: 2.296, 95% CI 1.057-4.987, P = 0.036), high total cholesterol level (OR: 5.238, 95% CI 2.304-11.909, P < 0.001), and multifocality (OR: 11.954, 95% CI 5.233-27.305, P < 0.001) were independent risk factors for LNM-prRLN. The area under the ROC curve was 0.927. The calibration curve showed good agreement between the predicted and observed rates of LNM-prRLN.

CONCLUSION: The probability of LNM-prRLN could be predicted by a nomogram based on the statistically significant risk factors identified in the multivariate analysis. This nomogram can guide clinicians when preoperatively evaluating the status of the LN-prRLN with regard to LNM-prRLN in PTC patients. For patients at high risk for LNM-prRLN, the preventive dissection of LN-prRLNs can be considered.

PMID:37072557 | DOI:10.1007/s00405-023-07946-6

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What is the cost-effectiveness of menu calorie labelling on reducing obesity-associated cancer burdens? An economic evaluation of a federal policy intervention among 235 million adults in the USA

BMJ Open. 2023 Apr 18;13(4):e063614. doi: 10.1136/bmjopen-2022-063614.

ABSTRACT

OBJECTIVE: To assess the impact of menu calorie labelling on reducing obesity-associated cancer burdens in the USA.

DESIGN: Cost-effectiveness analysis using a Markov cohort state-transition model.

SETTING: Policy intervention.

PARTICIPANTS: A modelled population of 235 million adults aged ≥20 years in 2015-2016.

INTERVENTIONS: The impact of menu calorie labelling on reducing 13 obesity-associated cancers among US adults over a lifetime was evaluated for: (1) effects on consumer behaviours; and (2) additional effects on industry reformulation. The model integrated nationally representative demographics, calorie intake from restaurants, cancer statistics and estimates on associations of policy with calorie intake, dietary change with body mass index (BMI) change, BMI with cancer rates, and policy and healthcare costs from published literature.

MAIN OUTCOME MEASURES: Averted new cancer cases and cancer deaths and net costs (in 2015 US$) among the total population and demographic subgroups were determined. Incremental cost-effectiveness ratios from societal and healthcare perspectives were assessed and compared with the threshold of US$150 000 per quality-adjusted life year (QALY) gained. Probabilistic sensitivity analyses incorporated uncertainty in input parameters and generated 95% uncertainty intervals (UIs).

RESULTS: Considering consumer behaviour alone, this policy was associated with 28 000 (95% UI 16 300 to 39 100) new cancer cases and 16 700 (9610 to 23 600) cancer deaths averted, 111 000 (64 800 to 158 000) QALYs gained, and US$1480 (884 to 2080) million saved in cancer-related medical costs among US adults. The policy was associated with net cost savings of US$1460 (864 to 2060) million and US$1350 (486 to 2260) million from healthcare and societal perspectives, respectively. Additional industry reformulation would substantially increase policy impact. Greater health gains and cost savings were predicted among young adults, Hispanic and non-Hispanic Black individuals.

CONCLUSIONS: Study findings suggest that menu calorie labelling is associated with lower obesity-related cancer burdens and reduced healthcare costs. Policymakers may prioritise nutrition policies for cancer prevention in the USA.

PMID:37072239 | DOI:10.1136/bmjopen-2022-063614

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Impact of early waves of the COVID-19 pandemic on family medicine residency training: Analysis of survey data

Can Fam Physician. 2023 Apr;69(4):271-277. doi: 10.46747/cfp.6904271.

ABSTRACT

OBJECTIVE: To identify how graduating and incoming family medicine residents (FMR) experienced changes to their education during the early waves of the COVID-19 pandemic.

DESIGN: The Family Medicine Longitudinal Survey was modified with questions related to the impact of COVID-19 on FMR and their training. Short-answer responses underwent thematic analysis. Responses to Likert scale and multiple-choice questions were reported as summary statistics.

SETTING: Department of Family and Community Medicine at the University of Toronto in Ontario.

PARTICIPANTS: Graduating FMR in spring 2020 and incoming FMR in fall 2020.

MAIN OUTCOME MEASURES: Residents’ perceptions of the impact of COVID-19 on clinical skills acquisition and preparedness for practice.

RESULTS: Surveys response rates were 124 of 167 (74%) and 142 of 162 (88%) for graduating and incoming residents, respectively. Important themes for both cohorts included reduced access to clinical environments, reduced patient volumes, and lack of exposure to procedural skills. While the graduating cohort indicated they felt confident to begin practising family medicine, they described being impacted by the loss of a tailored learning environment, including canceled or altered electives. In contrast, incoming residents reported the loss of core skills, such as physical examination competency, as well as the loss of face-to-face communication, rapport, and relationship-building opportunities. However, both cohorts endorsed gaining new skills during the pandemic, including conducting telemedicine appointments, pandemic planning, and interfacing with public health.

CONCLUSION: Based on these results, residency programs can specifically tailor solutions and modifications to address common themes across cohorts to facilitate optimal learning environments in pandemic times.

PMID:37072215 | DOI:10.46747/cfp.6904271

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Denosumab and incidence of type 2 diabetes among adults with osteoporosis: population based cohort study

BMJ. 2023 Apr 18;381:e073435. doi: 10.1136/bmj-2022-073435.

ABSTRACT

OBJECTIVE: To estimate the effect of denosumab compared with oral bisphosphonates on reducing the risk of type 2 diabetes in adults with osteoporosis.

DESIGN: Population based study involving emulation of a randomized target trial using electronic health records.

SETTING: IQVIA Medical Research Data primary care database in the United Kingdom, 1995-2021.

PARTICIPANTS: Adults aged 45 years or older who used denosumab or an oral bisphosphonate for osteoporosis.

MAIN OUTCOME MEASURES: The primary outcome was incident type 2 diabetes, as defined by diagnostic codes. Cox proportional hazards models were used to estimate adjusted hazard ratios and 95% confidence intervals, comparing denosumab with oral bisphosphonates using an as treated approach.

RESULTS: 4301 new users of denosumab were matched on propensity score to 21 038 users of an oral bisphosphonate and followed for a mean of 2.2 years. The incidence rate of type 2 diabetes in denosumab users was 5.7 (95% confidence interval 4.3 to 7.3) per 1000 person years and in oral bisphosphonate users was 8.3 (7.4 to 9.2) per 1000 person years. Initiation of denosumab was associated with a reduced risk of type 2 diabetes (hazard ratio 0.68, 95% confidence interval 0.52 to 0.89). Participants with prediabetes appeared to benefit more from denosumab compared with an oral bisphosphonate (hazard ratio 0.54, 0.35 to 0.82), as did those with a body mass index ≥30 (0.65, 0.40 to 1.06).

CONCLUSIONS: In this population based study, denosumab use was associated with a lower risk of incident type 2 diabetes compared with oral bisphosphonate use in adults with osteoporosis. This study provides evidence at a population level that denosumab may have added benefits for glucose metabolism compared with oral bisphosphonates.

PMID:37072150 | DOI:10.1136/bmj-2022-073435

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Psychological therapies for depression and cardiovascular risk: evidence from national healthcare records in England

Eur Heart J. 2023 Apr 18:ehad188. doi: 10.1093/eurheartj/ehad188. Online ahead of print.

ABSTRACT

AIMS: People with depression are up to 72% more at risk to develop cardiovascular disease (CVD) in their lifetime. Evidence-based psychotherapies are first-line interventions for the treatment of depression and are delivered nationally in England through the National Health Service via the Improving Access to Psychological Therapy (IAPT) primary care programme. It is currently unknown whether positive therapy outcomes may be associated with cardiovascular risk reduction. This study aimed to examine the association between psychotherapy outcomes for depression and incident CVD.

METHODS AND RESULTS: A cohort of 636 955 individuals who have completed a course of psychotherapy was built from linked electronic healthcare record databases of national coverage in England: the national IAPT database, the Hospital Episode Statistics (HES) database, and the HES-ONS (Office of National Statistics) mortality database. Multivariable Cox models adjusting for clinical and demographic covariates were run to estimate the association between reliable improvement from depression and the risk of subsequent incidence of cardiovascular events. After a median follow-up of 3.1 years, reliable improvement from depression symptoms was associated with a lower risk of new onset of any CVD [hazard ratio (HR): 0.88, 95% confidence interval (CI): 0.86, 0.89], coronary heart disease (HR: 0.89, 95% CI: 0.86, 0.92), stroke (HR: 0.88, 95% CI: 0.83, 0.94), and all-cause mortality (HR: 0.81, 95% CI: 0.78, 0.84). This association was stronger in the under 60 compared with the over 60 for all outcomes. Results were confirmed in sensitivity analyses.

CONCLUSION: Management of depression through psychological interventions may be associated with reduced risk of CVD. More research is needed to understand the causality of these associations.

PMID:37072130 | DOI:10.1093/eurheartj/ehad188

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Effect of probiotic supplementation on chemotherapy and radiotherapy-related diarrhea in patients with cancer: An umbrella review of systematic reviews and meta-analyses

Br J Nutr. 2023 Apr 18:1-31. doi: 10.1017/S0007114523000910. Online ahead of print.

ABSTRACT

To date, several systematic reviews and meta-analyses (SRMAs) have investigated the effects of probiotics, but the certainty of the evidence for an effect on chemotherapy and radiotherapy-related diarrhea has not been assessed. We conducted an overview of SRMAs, searching MEDLINE, Scopus, and ISI Web of Science from inception up to February 2022. We summarized the findings of eligible SRMAs. Subsequently, we included RCTs from the SRMAs in meta-analyses, using a quality effects model to calculate the Odds ratio (ORs) and 95% confidence intervals (95%CIs) for each outcome. We used ‘A Measurement Tool to Assess Systematic Reviews’ (AMSTAR 2) and the Cochrane risk of bias (RoB) tool to assess the methodological quality of the SRMAs and their RCTs, respectively. We used the ‘Grading of Recommendations Assessment, Development, and Evaluation’ (GRADE).We included 13 SRMAs, which reported pooled effect sizes for chemotherapy and radiotherapy-related diarrhea based on a total of 18 RCTs. Our meta-analyses demonstrated statistically significant beneficial effects from probiotics on all outcomes, except stool consistency; diarrhea (any grade) OR 0.35 (95%CI 0.22, 0.54), grade ≥2 diarrhea 0.43 (0.25, 0.74), grade ≥3 diarrhea 0.30 (0.15, 0.59), use of medication 0.49 (0.27, 0.88), soft stool 1.10 (0.44, 2.76) and watery stool 0.52 (0.29, 1.29). Probiotics use can reduce the incidence of diarrhea in cancer patients in chemotherapy and radiotherapy, but the certainty of evidence for significant outcomes were very low and low.

PMID:37072129 | DOI:10.1017/S0007114523000910

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The Association of Cognitive Impairment With Depressive Symptoms, Function, and Pain in Hospitalized Older Patients With Dementia

J Appl Gerontol. 2023 Apr 18:7334648231168446. doi: 10.1177/07334648231168446. Online ahead of print.

ABSTRACT

This study examined the associations between cognition and depressive symptoms, function, and pain among hospitalized older patients with dementia. We utilized baseline data of 461 hospitalized older patients with dementia who participated in an intervention study implementing Family-centered Function-focused Care (Fam-FFC) and conducted stepwise linear regression. On average, the participants (males = 189; 41% and females = 272; 59%) were 81.64 years old (Standard Deviation, SD = 8.38). There was a statistically significant association of cognition with depressive symptoms (b = -0.184, p < .001), functional status (b = 1.324, p < .001), and pain (b = -0.045, p < .001) when controlling for covariates. This study utilized a large sample of a relatively underrepresented population, hospitalized older adults with dementia, and addressed a topic with great clinical significance. Specific focus on testing and implementing best practices or interventions to support the clinical outcomes, and the cognitive function of hospitalized older adults with dementia is warranted in both practice and research.

PMID:37072127 | DOI:10.1177/07334648231168446