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1.
Int J Antimicrob Agents ; : 107297, 2024 Aug 05.
Article in English | MEDLINE | ID: mdl-39111709

ABSTRACT

BACKGROUND: The optimal duration of therapy of aminoglycosides in combination regimens is expected to be different to monotherapy regimens; and shorter durations could help minimize toxicity without compromising efficacy. The aim of this review was to assess the evidence for the optimal duration of aminoglycosides in beta-lactam/aminoglycoside combinations used for the treatment of Gram-negative bacterial infections. METHODS: PubMed, Cochrane, Embase, Scopus, Web of Science, and CINHAL databases were searched. Covidence software was used for article screening and management. Studies were included if they clearly reported the duration of therapy of aminoglycosides in beta-lactam/aminoglycoside combinations used against Gram-negative bacteria. The protocol is registered with PROSPERO (CRD42023392709). RESULTS: A total of 45 beta-lactam/aminoglycoside combination courses from 32 articles were evaluated. The duration of therapy of aminoglycosides in combinations regimens ranged from 1 to 14 days, varying with the type of infection treated. In half (51.1%; (23/45) of the combinations, aminoglycosides were administered for a duration ranging from 6 to 9 days. In 26.7% (12/45) of the combinations, the duration of aminoglycoside therapy was ≤ 5 days. In the remaining 22.2% (10/45) of these combinations, the aminoglycosides were administered for a duration of ≥ 10 days. Aminoglycosides were administered for a longer duration of 7-14 days in 12 (75%) of the 16 combination courses that induced toxicity. CONCLUSIONS: Long duration of aminoglycoside use is associated with increased risk of toxicity. However, there is a lack of evidence on defining an optimal duration of aminoglycoside therapy in beta-lactam/aminoglycoside combination regimens that ensures clinical efficacy-outcomes whilst minimizing toxicity-outcomes.

2.
Zhongguo Zhen Jiu ; 44(8): 899-904, 2024 Aug 12.
Article in Chinese | MEDLINE | ID: mdl-39111788

ABSTRACT

OBJECTIVE: To observe the clinical effect of pricking-cupping combined with auricular thumbtack needle for postherpetic neuralgia (PHN) of qi stagnation and blood stasis on chest and waist. METHODS: A total of 98 patients with PHN of qi stagnation and blood stasis on chest and waist were randomized into an observation group (49 cases, 1 case was eliminated, 1 case dropped out) and a control group (49 cases, 1 case dropped out). In the observation group, treatment of pricking-cupping combined with auricular thumbtack needle was delivered, pricking and cupping were applied at Jiaji points (EX-B 2) at the related spinal segments corresponding to the pain sites and regional ashi points, once every other day, auricular thumbtack needle was applied at Xin (CO15), Shenmen (TF4), Neifenmi (CO18), Pizhixia (AT4), etc., once every 3 days. In the control group, pregabalin capsule was taken orally, 75 mg a time, twice a day. The treatment of 4 weeks was required in the two groups. Before and after treatment, the scores of TCM symptom, visual analogue scale (VAS), Pittsburgh sleep quality index (PSQI), self-rating depression scale (SDS) and self-rating anxiety scale (SAS) were observed, the serum levels of immunoglobulin G (IgG), interleukin-6 (IL-6), C-reactive protein (CRP) were detected, and the clinical efficacy and safety were evaluated in the two groups. RESULTS: After treatment, the item scores and total scores of TCM symptom, as well as the scores of VAS, PSQI, SDS and SAS were decreased compared with those before treatment (P<0.05); the item scores of pruritus degree, tactile sensitivity, skin numbness and total score of TCM symptom, as well as the scores of VAS, PSQI, SDS and SAS in the observation group were lower than those in the control group (P<0.05). After treatment, the serum levels of IgG were increased (P<0.05), while the serum levels of IL-6 and CRP were decreased (P<0.05) compared with those before treatment in the two groups; in the observation group, the serum level of IgG was higher (P<0.05), while the serum levels of IL-6 and CRP were lower (P<0.05) than those in the control group. The total effective rate was 95.7% (45/47) in the observation group, which was superior to 77.1% (37/48) in the control group (P<0.05). The incidence rate of adverse reaction was 6.4% (3/47) in the observation group, which was lower than 12.5% (6/48) in the control group (P<0.05). CONCLUSION: Pricking-cupping combined with auricular thumbtack needle can effectively relieve the clinical symptoms in patients with PHN of qi stagnation and blood stasis on chest and waist, reduce the pigmentation of herpes and improve itch or burning, numb sensations in the skin lesions, improve the sleep quality and relieve anxiety and depression.


Subject(s)
Neuralgia, Postherpetic , Humans , Male , Female , Middle Aged , Neuralgia, Postherpetic/therapy , Aged , Acupuncture, Ear , Cupping Therapy , Adult , Qi , C-Reactive Protein/metabolism , Acupuncture Points , Combined Modality Therapy , Interleukin-6/blood , Treatment Outcome , Acupuncture Therapy
3.
Clin Trials ; : 17407745241264188, 2024 Aug 08.
Article in English | MEDLINE | ID: mdl-39114952

ABSTRACT

Duration of response is an important endpoint used in drug development. Prolonged duration for response is often viewed as an early indication of treatment efficacy. However, there are numerous difficulties in studying the distribution of duration of response based on observed data subject to right censoring in practice. The most important obstacle is that the distribution of the duration of response is in general not identifiable in the presence of censoring due to the simple fact that there is no information on the joint distribution of time to response and time to progression beyond the largest follow-up time. In this article, we introduce the restricted duration of response as a replacement of the conventional duration of response. The distribution of restricted duration of response is estimable and we have proposed several nonparametric estimators in this article. The corresponding inference procedure and additional downstream analysis have been developed. Extensive numerical simulations have been conducted to examine the finite sample performance of the proposed estimators. It appears that a new regression-based two-step estimator for the survival function of the restricted duration of response tends to have a robust and superior performance, and we recommend its use in practice. A real data example from oncology has been used to illustrate the analysis for restricted duration of response.

4.
Sleep Breath ; 2024 Aug 08.
Article in English | MEDLINE | ID: mdl-39115597

ABSTRACT

BACKGROUND: The aim of the study is to estimate the prevalence and associated factors of insomnia among older adults in the Philippines. METHODS: In all, 5206 cross-sectional nationally representative data from older adults (≥ 60 years) of the 2018 Longitudinal Study on Ageing and Health in the Philippines (LSAHP) was analysed. Napping frequency and duration were assessed by self-report. RESULTS: The prevalence of regular nappers was 35.7%, low or moderate napping (1-59 min) was 10.5% and long napping (≥ 60 min) duration was 25.2%. In the final adjusted model, older age was not significantly associated with low or moderate napping duration but older age was positively associated with long napping duration. High wealth status, physical activity and late insomnia were positively associated with low or moderate napping duration. High wealth status, urban residence, daily activity limitations, and physical activity were positively associated, and currently working status, poor self-rated health status and current alcohol use were negatively associated with long napping duration. CONCLUSION: One in four older adults reported long napping duration. Sociodemographic, health status and behaviour and sleep parameters were associated with low or moderate and/or long napping duration.

5.
J Multidiscip Healthc ; 17: 3637-3648, 2024.
Article in English | MEDLINE | ID: mdl-39100899

ABSTRACT

The central nervous system (CNS) is less prone to infection owing to protection from the brain-blood barrier. However, craniotomy destroys this protection and increases the risk of infection in the brain of patients who have undergone craniotomy. CNS infection after craniotomy significantly increases the patient's mortality rate and disability. Controlling the occurrence of intracranial infection is very important for post-craniotomy patients. CNS infection after craniotomy is caused by several factors such as preoperative, intraoperative, and post-operative factors. Craniotomy may lead to postsurgical intracranial infection, which is mainly associated with surgery duration, infratentorial (posterior fossa) surgery, cerebrospinal fluid leakage, drainage tube placement, unregulated use of antibiotics, glucocorticoid use, age, diabetes, and other systemic infections. Understanding the risk factors of CNS infection after craniotomy can benefit reducing the incidence of intracranial infectious diseases. This will also provide the necessary guidance and evidence in clinical practice for planning to control intracranial infection in patients with craniotomy.

6.
Nat Sci Sleep ; 16: 1121-1130, 2024.
Article in English | MEDLINE | ID: mdl-39100907

ABSTRACT

Introduction: The burden of cardiometabolic diseases (CMDs), defined as stroke, coronary artery disease, and diabetes mellitus, continues to pose a global challenge. Sleep duration has been linked to cardiovascular health. However, there is a lack of focused investigations on CMDs in underdeveloped areas of China. Purpose: This study aimed to examine the relationship between sleep duration and CMDs among residents from southwest China. Patients and Methods: This large cross-sectional study screened data from the National Key Research and Development Program (2018YFC1311400). Based on sleep duration reported through a standardized questionnaire, encompassing the sleep patterns of the past five years, participants were classified into three groups: <6, 6-8, >8 hours. Baseline characteristics were compared, and Poisson regression models were used to assess the relationship between sleep duration and CMDs. Subgroup analysis was conducted based on age and gender. Results: This study included 28,908 participants with an average age of 65.6 ± 10.0 years, of whom 57.6% were female. The overall prevalence of CMDs was 22.6%. After multivariate adjustments, the prevalence ratios (PR) (95% CI) for CMDs across the three groups (6-8h, <6h and >8h) were: reference, 1.140 (1.068-1.218), 1.060 (0.961-1.169) (P for trend =0.003), respectively. The subgroup analysis revealed that among older females, a longer sleep duration (>8h) was also associated with an increased prevalence risk of CMDs, with PR 1.169 (1.001-1.365) (p=0.049). Conclusion: A shorter sleep duration (<6 hours) was associated with an increased risk of CMDs in the general population, while a longer sleep duration (>8 hours) also raised the prevalence risk among older females.

7.
J Crit Care Med (Targu Mures) ; 10(3): 254-260, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39108408

ABSTRACT

Introduction: Pediatric bronchopneumonia is a prevalent life-threatening disease, particularly in developing countries. Affordable and accessible blood biomarkers are needed to predict disease severity which can be based on the Duration of Hospitalization (DOH). Aim of the Study: To assess the significance and correlation between differential blood profiles, especially the Neutrophil-Lymphocyte Ratio (NLR), and the DOH in bronchopneumonia children. Material and Methods: A record-based study was conducted at a secondary care hospital in Indonesia. After due ethical permission, following inclusion and exclusion criteria, 284 children with confirmed diagnoses of bronchopneumonia were included in the study. Blood cell counts and ratios were assessed with the DOH as the main criterion of severity. Mann-Whitney test and correlation coefficient were used to draw an analysis. Results: Study samples were grouped into DOH of ≤ 4 days and > 4 days, focusing on NLR values, neutrophils, lymphocytes, and leukocytes. The NLR median was higher (3.98) in patients hospitalized over 4 days (P<0.0001). Lymphocyte medians were significantly higher in the opposite group (P<0.0001). Thrombocyte medians were similar in both groups (P=0.44481). The overall NLR and DOH were weakly positively correlated, with a moderate positive correlation in total neutrophils and DOH, and a moderate negative correlation in total lymphocytes and DOH. The correlation between the DOH ≤ 4 days group with each biomarker was stronger, except for leukocyte and thrombocyte. Analysis of the longer DOH group did not yield enough correlation across all blood counts. Conclusions: Admission levels of leukocyte count, neutrophil, lymphocyte, and NLR significantly correlate with the DOH, with NLR predicting severity and positively correlated with the DOH.

8.
Front Public Health ; 12: 1406396, 2024.
Article in English | MEDLINE | ID: mdl-39109162

ABSTRACT

Introduction: Cross-sectional evidence suggests that sleep problems increased the risk of suicide during the 2019 coronavirus disease (COVID-19) pandemic. However, a lack of longitudinal studies examined the relationship between pre-COVID-19 sleep duration, chronotype and incident suicide during the COVID-19 pandemic. Thus, we examined these associations in a longitudinal study of medical students. Methods: From the Shantou College Student Sleep Cohort, a total of 333 first and second grade medical students (age 19.41 ± 0.82 years, female 61.26%), without suicidal ideation (SI) at pre-COVID-19 period, were followed up during the COVID-19 pandemic. Incident SI was defined by their response to the 9th question from the Beck Depression Inventory. Short sleep duration was defined as less than 7 h/night. The Morningness-Eveningness Questionnaire was used to evaluate the participants' chronotype. Logistic regression with adjusted odds ratios (AOR) and 95% confidence intervals (95% CI) was used to examine the association between sleep and SI. Results: The incidence of SI during the COVID-19 pandemic was 5.71%. Logistic regressions with confounding factors adjustment showed that both short sleep duration (AOR = 4.91, 95% CI = 1.16-20.74) and eveningness (AOR = 3.80, 95% CI = 1.08-13.30) in the pre-COVID-19 period were associated with increased risk of incident SI during the COVID-19 pandemic. Conclusion: Pre-COVID-19 short sleep duration and eveningness predict incident SI during the COVID-19 pandemic in medical students. Prolonging sleep duration may help to decrease SI during major public health crises.


Subject(s)
COVID-19 , Sleep Duration , Students, Medical , Suicidal Ideation , Adolescent , Female , Humans , Male , Young Adult , Chronotype , COVID-19/epidemiology , COVID-19/psychology , Incidence , Longitudinal Studies , Pandemics , Retrospective Studies , Risk Factors , Students, Medical/psychology , Students, Medical/statistics & numerical data , Surveys and Questionnaires
9.
Front Digit Health ; 6: 1394901, 2024.
Article in English | MEDLINE | ID: mdl-39113846

ABSTRACT

Objectives: We aimed to test the reliability and structural validity (also called dimensionality) of the online Pittsburgh Sleep Quality Index among college students from low-income regions. Methods: We assessed 195 Brazilian college students from a low-income region (Gini index of 0.56), of whom 117 were reassessed to evaluate the reliability. We collected all data in a self-reported online twice, 2-week apart. We evaluated reliability and structural validity. Results: All questionnaire components showed reliability, correlation coefficient ≥0.49. In the structural validity, the confirmatory analysis showed better global model adjustment for the one-factor (RMSEA = 0.019; SRMR = 0.041; CFI = 0.992; TLI = 0.986) solution compared with two-factor (RMSEA = 0.099; SRMR = 0.070; CFI = 0.764; TLI = 0.619) and three-factor (RMSEA = 0.108; SRMR = 0.066; CFI = 0.763; TLI = 0.548) solutions, respectively. Discussion: The online questionnaire presents acceptable reliability and structural validity in Brazilian low-income regions.

10.
Int J Med Sci ; 21(10): 1884-1889, 2024.
Article in English | MEDLINE | ID: mdl-39113888

ABSTRACT

Background: Celiac Disease (CD) is characterized by small intestine involvement. However, cardiac manifestations may also be seen in the clinical course. The significance of the QRS prolongation and the presence of QRS fragmentation (fQRS) has been previously studied in many chronic inflammatory disorders as an independent predictor of cardiac manifestations. The study aimed to evaluate the QRS duration and presence of fQRS in patients with CD. Methods: 164 patients with CD and 162 healthy controls were included in the present study. QRS duration and presence of fQRS were calculated from the 12-lead electrocardiogram and compared between groups. The association between these parameters and disease duration was also evaluated. Results: QRS duration was found to be higher in the CD group compared to the control group (83 (76.8-93) vs. 91 (84-94), p<0.001). The presence of fQRS was demonstrated to be higher in the CD group (n=68 (41.5%) vs n=42 (25.9%), p=0.003). Notably, QRS duration was positively correlated with disease duration (Spearman's Rho= 0.47, p<0.001). In addition, disease duration was significantly higher in the fQRS (+) group (60 (23,5-144) vs. 28,5 (15-71,5), p=0.002). Conclusion: This study revealed that QRS prolongation and the presence of fQRS were higher in patients with CD. The presence of these findings may be an indicator of early subclinical cardiac involvement, especially in those with long disease duration. Thus, patients with these ECG findings can be considered for further cardiac evaluation.


Subject(s)
Celiac Disease , Electrocardiography , Humans , Celiac Disease/physiopathology , Celiac Disease/complications , Female , Male , Adult , Middle Aged , Case-Control Studies , Young Adult , Adolescent
11.
Ophthalmic Epidemiol ; : 1-8, 2024 Aug 08.
Article in English | MEDLINE | ID: mdl-39116416

ABSTRACT

PURPOSE: Although the rate of diabetic retinopathy (DR)-related blindness has decreased in developed countries in recent years, the reasons for this decrease have remained unclear. The prevalence/severity trends of DR at the first visit in patients with untreated type 2 diabetes mellitus (T2DM) patients seen between the1986s and 2018s were assessed. METHODS: A total of 1979 Japanese T2DM patients diagnosed between 1986 and 2018 were divided into four groups by the decade of their first visit: the 1986 years (1986-1987), the 1996 years (1996-1997), the 2006 years (2006-2008), the 2016 years (2016-2018). The DR prevalence/severity trends were assessed. RESULTS: A significant decrease in the rate of prevalence of DR from the 1986s to 2016s was observed among previously untreated T2DM patients visiting our hospital for the first time (1986s: 25.5%; 1996s: 26.2%; 2006s: 22.2%; and 2016s: 15.6%). The prevalence was significantly higher in females (30.2%) than in males (21.3%). Although the severity trend of DR did not differ significantly among the four measurement years, the rate of simple DR was the highest in the 2016s. CONCLUSION: We found, for the first time, a significant decrease in the rate of prevalence of DR from the 1986s to 2016s in patients with untreated T2DM visiting our hospital for the first time. A decrease in the rate of DR prevalence could explain, at least in part, the observed reduction in the rate of blindness in patients with T2DM.

12.
Front Physiol ; 15: 1430821, 2024.
Article in English | MEDLINE | ID: mdl-39129755

ABSTRACT

Introduction: Some cardiovascular risk markers have been associated with alterations in sleep duration in different populations; however, there is little evidence in a healthy population. Aim: The aim of the present study was to analyze the associations between sleep duration and cardiovascular risk biomarkers, including advanced glycation end-products (AGEs) measured by skin autofluorescence (SAF), maximum carotid intima-media thickness (IMTMax), aortic pulse wave velocity (a-PWV), pulse pressure (PP), and low-density lipoprotein cholesterol (LDL-C), in healthy adults (EVasCu study). Methodology: The EVasCu study included 390 participants. Simple and multiple linear regressions were performed between sleep duration and cardiovascular risk markers. ANOVA analysis and ANCOVA analysis adjusted for various covariates were then performed after categorizing sleep into 6 h, 6-8 h, and >8 h. Results: 296 participants were included in the analyses (43.97 ± 12.60 years, 63.9% female). Simple linear regressions showed an inverse association between sleep duration and SAF, IMTMax, aPWV and PP. However, in the multiple linear regression with all the covariates, the statistical significance was lost. For its part, in the ANOVA analyses, sleep duration was also associated with the same parameters, but when performing the fully adjusted ANCOVA analyses, the statistical significance for SAF was maintained (p = 0.015), obtaining a difference of 0.223 arbitrary units (p = 0.017) when comparing the group <6 h vs. > 8 h. Finally, there was no association for LDL-C. Conclusion: An inverse association was found between sleep duration and APS, which is considered a marker of cardiovascular risk. Although prospective studies are needed, it is suggested that insufficient sleep may increase cardiovascular risk, which could be a key factor in future public health policies to promote health and prevent CVD.

13.
Cureus ; 16(7): e64233, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39130953

ABSTRACT

Introduction An EEG is an important tool in the diagnosis of neurological diseases. Performing an EEG on children can be challenging due to their tendency to not cooperate for the recommended duration. We aim to optimize the duration of EEG recording in children by finding the optimal duration of recording. Materials and methods A single-center prospective observational study was done after appropriate ethical clearance. Children aged 0-14 were recruited and examined, and the recommended EEG was done. Data were collected and analyzed. Results Of the 112 EEGs analyzed, 29 EEGs were normal, i.e., no diagnostic anomaly was noticed. In the remaining 83 EEGs, if the duration of the EEG was reduced to 20 minutes, it resulted in missing the diagnostic anomaly in 20 cases (24.1%; 95% CI: 11.2%-26.2%). Reducing the duration of the EEG recording to 10 minutes resulted in missing 63 of the diagnostic anomalies (75.9%; 95% CI: 46.6%-65.6%). Of the 86 drug-induced EEGs, 22 were normal (25.6%; 95% CI: 16.8%-36.1%). Of the 24 routine EEGs, seven were normal (29.2%; 95% CI: 12.6%-51.1%). Of the two sleep-deprived EEGs, neither was normal (0.0%; 95% CI: 0.0%-84.1%). Conclusion In our study, we observed that optimization of the duration of EEG recording can be done to 20 minutes in all populations. We also observed that if we find a diagnostic abnormality early during EEG recording, then continuation of the EEG may not be necessary to make a valid report. Having said so, having a negative EEG may not necessarily rule out a diagnosis. We did not find the superiority of any of the EEG protocols over others, as their yield was comparable.

14.
Gastro Hep Adv ; 3(4): 539-550, 2024.
Article in English | MEDLINE | ID: mdl-39131711

ABSTRACT

Background and Aims: Early biologic therapy treatment has demonstrated better outcomes in Crohn's disease (CD). We evaluated the impact of CD duration in patients with moderately to severely active CD treated with risankizumab therapy. Methods: This post hoc analysis evaluated clinical, endoscopic, and safety outcomes by baseline CD duration (<2, 2-5, >5-10, and >10 years) in patients from ADVANCE, MOTIVATE, and FORTIFY. Pooled induction analyses included patients who received intravenous 600-mg dose of risankizumab or placebo for 12 weeks. Maintenance analyses included patients who responded to induction risankizumab and received subcutaneous 180-mg or 360-mg dose of risankizumab for 52 weeks. Duration subgroups were compared using Cochrane-Armitage trend tests with nominal P values. Results: Among 527 patients who received risankizumab 600-mg induction therapy, higher outcome rates were observed at week 12 among patients with shorter vs longer baseline disease duration (for <2, 2-5, >5-10, and >10 years, clinical remission: 42.7%, 46.9%, 43.5%, and 33.2% [P = .046]; endoscopic response: 48.3%, 36.3%, 32.0%, and 33.4% [P = .025]). Among 298 patients receiving risankizumab (180 mg or 360 mg) maintenance therapy, shorter vs longer baseline disease duration was generally associated with numerically higher endoscopic outcome rates at week 52. Higher clinical remission and endoscopic outcome rates were generally observed with shorter disease duration with 180-mg risankizumab dose only. Adverse event rates were generally similar across duration subgroups. Conclusion: Clinical benefits of risankizumab are observed across disease duration subgroups; clinical and endoscopic outcome rates are higher with risankizumab initiation earlier in the disease course (ClinicalTrials.gov numbers: NCT03105128, NCT03104413, and NCT03105102).

15.
J Soc Cardiovasc Angiogr Interv ; 3(7): 101859, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39131993

ABSTRACT

Background: Patients with type 2 diabetes mellitus (DM) comprise more than a quarter of all patients undergoing percutaneous coronary intervention and are at higher risk of adverse events. We sought to reexamine the optimal duration of dual antiplatelet therapy (DAPT) postpercutaneous coronary intervention in patients with DM. Methods: We systematically included randomized controlled trials comparing any 2 of 1, 3, 6, and 12 months of DAPT that reported major adverse cardiovascular events (MACE), net adverse clinical events (NACE), bleeding, or stent thrombosis in DM, and performed a frequentist network meta-analysis. We also performed a sensitivity analysis of trials that exclusively enrolled patients with acute coronary syndrome. Results: In 16 randomized controlled trials comprising 16,376 adults with DM, there was no significant difference in NACE, MACE, stent thrombosis, or major bleeding between pairwise comparisons of 1, 3, 6, and 12 months of DAPT, except for a signal for lower bleeding with 3 months of DAPT compared to 12 (risk ratio, 0.72; 95% CI, 0.51-0.99). Sensitivity analysis of trials that solely included acute coronary syndrome similarly showed no significant difference in MACE between 1, 3, 6, and 12 months of DAPT. Conclusions: Our study found no meaningful difference in NACE or MACE between pairwise comparisons of 1, 3, 6, and 12 months of DAPT by study-level meta-analysis of patients with DM, with lower bleeding risk observed with 3 months than with 12 months of DAPT. This finding may provide clinicians greater flexibility to personalize patients' DAPT duration based on other non-DM comorbidities that might affect bleeding or thrombosis risk.

17.
Health Sci Rep ; 7(8): e2305, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39135704

ABSTRACT

Introduction: Early studies exploring the physiological effects of space travel have indicated the body's capacity for reversible adaptation. However, the impact of long-duration spaceflight, exceeding 6 months, presents more intricate challenges. Effects on the Cardiovascular CV System: Extended exposure to microgravity and radiation profoundly affects the CV system. Notable phenomena include fluid shifts toward the head and modified arterial pressure. These changes disrupt blood pressure regulation and elevate cardiac output. Additionally, the loss of venous compression leads to a reduction in central venous pressure. Fluid and Plasma Volume Changes: The displacement of fluid from the vascular system to the interstitium, driven by baroreceptor stimulation, results in a 10%-15% decline in plasma volume. Cardiac Muscle and Hematocrit Variations: Intriguingly, despite potential increases in cardiac workload, cardiac muscle atrophy and perplexing variations in hematocrit levels have been observed. The mechanism underlying atrophy appears to involve a shift in protein synthesis from the endoplasmic reticulum to the mitochondria via mortalin-mediated mechanisms. Arrhythmias and QT Interval Prolongation: Instances of arrhythmias have been recurrently documented, although generally nonlethal, in both Russian and American space missions. Long-duration spaceflight has been associated with the prolongation of the QT interval, particularly in extended missions. Radiation Effects: Exposure of the heart to the proton and heavy ion radiation pervasive in deep space contributes to coronary artery degeneration, augmented aortic stiffness, and carotid intima thickening through collagen-mediated processes. Moreover, it accelerates the onset of atherosclerosis and triggers proinflammatory responses. Reentry and Postflight Challenges: Upon reentry, astronauts frequently experience orthostatic intolerance and altered sympathetic responses, which bear potential hazards in scenarios requiring rapid mobilization or evacuation. Conclusion: Consequently, careful monitoring of these cardiac risks is imperative for forthcoming missions. While early studies illuminate the adaptability of the body to space travel's challenges, the intricacies of long-duration missions and their effects on the CV system necessitate continued investigation and vigilance to ensure astronaut health and mission success.

18.
Int J Public Health ; 69: 1607322, 2024.
Article in English | MEDLINE | ID: mdl-39135914

ABSTRACT

Objectives: White collar workers spend an increasing amount of time in occupational sedentary behavior (OSB) and are thereby at risk for adverse health outcomes. Nevertheless, the association between OSB and the need for recovery (NFR), an important indicator of wellbeing, is unknown and therefore examined. Methods: Baseline data from a cluster randomized controlled trial was used. A subgroup of 89 white collar workers wore a triaxial accelerometer for 7 days. NFR was measured using the Questionnaire on the Experience and Evaluation of Work. Compositional data analysis was applied to determine the composition of different OSB bouts (short, medium and long) and occupational physical activity (OPA) (light, moderate and vigorous and standing). Linear regression analyses were performed to explore the associations between occupational compositions and NFR. Results: Relatively more time spent in long OSB bouts was associated with a lower NFR (ß: -11.30, 95% CI: -20.2 to -2.4). Short and medium OSB bouts and OPA were not associated with NFR. Conclusion: Associations between OSB bouts, OPA and NFR hinted at contrasting trends, suggesting the need to consider different bout lengths of OSB in future studies.


Subject(s)
Accelerometry , Sedentary Behavior , Humans , Male , Female , Adult , Middle Aged , Exercise , Surveys and Questionnaires , Occupational Health , Occupations
19.
Sleep Med Rev ; 77: 101965, 2024 May 31.
Article in English | MEDLINE | ID: mdl-39137553

ABSTRACT

Two researchers independently assessed studies published up to February 5, 2023, across PubMed, Web of Science, Embase, and Cochrane Library, to investigate the associations of sleep traits with cardiometabolic risk factors, as well as with cardiovascular diseases. Fourteen systematic reviews consisting of 23 meta-analyses, and 11 Mendelian randomization (MR) studies were included in this study. Short sleep duration was associated with a higher risk of obesity, type 2 diabetes (T2D), hypertension, stroke, and coronary heart disease (CHD) in observational studies, while a causal role was only demonstrated in obesity, hypertension, and CHD by MR. Similarly, long sleep duration showed connections with a higher risk of obesity, T2D, hypertension, stroke, and CHD in observational studies, none was supported by MR analysis. Both observational and MR studies indicated heightened risks of hypertension, stroke, and CHD in relation to insomnia. Napping was linked to elevated risks of T2D and CHD in observational studies, with MR analysis confirming a causal role in T2D. Additionally, snoring was correlated with increased risks of stroke and CHD in both observational and MR studies. This work consolidates existing evidence on a causal relationship between sleep characteristics and cardiometabolic risk factors, as well as cardiovascular diseases.

20.
Infect Dis Now ; : 104962, 2024 Aug 11.
Article in English | MEDLINE | ID: mdl-39137877

ABSTRACT

OBJECTIVES: In France, 75% of systemic antibiotics are prescribed by general practitioners (GPs) in primary care. We aimed to estimate the burden of inappropriate use related to excessive prescription duration. PATIENTS AND METHODS: In 2021, we performed a cross-sectional and pharmaco-economic study of a network of six GPs. The references for optimal durations were those of the French national guidelines for antibiotic prescription. RESULTS: Out of 196 antibiotic prescriptions, 33.7 % were of excessive duration, with a mean excess of 0.9 [0.86-0.94] to 1.6 [1.45-1.72] days per prescription. Ear, nose, and throat, respiratory tract, and skin and skin structure infections were the main infections associated with excessive prescription. The pharmaco-economic analysis showed that the cost of excessive prescription duration would range from an estimated 151 to 262 million € in France in 2021. CONCLUSION: Addressing excessive antibiotic prescription duration by GPs may represent a powerful and cost-saving tool in antimicrobial stewardship programs.

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