Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 310
Filter
1.
J Infect Public Health ; 17(7): 102450, 2024 May 14.
Article in English | MEDLINE | ID: mdl-38823086

ABSTRACT

BACKGROUND: In spite of major effectiveness, a residual risk after COVID-19 primary vaccination was identified, in particular, for vulnerable individuals of advanced age or with comorbidities. Less is known about the Omicron period in people protected by a booster dose. We aimed to identify the characteristics associated with severe COVID-19 during the Omicron period in a population that had received a booster dose in France and to compare differences with the previous periods of the pandemic. METHODS: This study was carried out using the French national COVID-19 vaccination database (VAC-SI) coupled with the National Health Data System (SNDS). Individuals aged 12 years or over who received at least one booster dose were identified. Associations between socio-demographic and clinical characteristics and the risk of COVID-19 hospitalisation occurring at least 14 days after receiving a third dose of vaccine during the period of Omicron predominance, i.e., from 1 January 2022 to 10 November 2022, were assessed using Cox proportional hazard models adjusted for age, sex, time since booster dose and vaccination schedule. Analyses were performed overall and by sub-period of circulation of the strains BA.1, BA.2, and BA.4/BA.5, defined as periods where the main sub-variant accounted for more than 80 % of genotyped samples. FINDINGS: In total, 35,640,387 individuals received a booster dose (mean follow-up of 291 days) and 73,989 were hospitalised for COVID-19 during the total period. Older age (aHR 20.5 95 % CI [19.6-21.5] for 90 years of age or older versus 45-54 years of age), being male (aHR 1.52 [1.50-1.55]), and social deprivation (aHR 1.33 [1.30-1.37] for the most deprived areas versus the least deprived) were associated with an increased risk of hospitalisation for COVID-19. Most of the chronic diseases considered were also positively associated with a residual risk, in particular, cystic fibrosis (aHR 9.83 [7.68-12.56]), active lung cancer (aHR 3.26 [3.06-3.47]), chronic dialysis (aHR 3.79 [3.49-4.11]), psychological and neurodegenerative diseases (more markedly than during the periods of circulation of the alpha and delta variants), and organ transplantation. The use of immunosuppressants was also associated with an increased risk (aHR 2.24 [2.14-2.35], including oral corticosteroids aHR (2.58 [2.50-2.67]). CONCLUSION: Despite an effective booster and a generally less virulent circulating variant, a residual risk of severe COVID-19 still exists in vulnerable populations, especially those with neurological disorders.

2.
Hosp Pediatr ; 14(6): 413-420, 2024 Jun 01.
Article in English | MEDLINE | ID: mdl-38738287

ABSTRACT

OBJECTIVE: Decision-making about antireflux procedures (ARPs) to treat gastroesophageal reflux disease in children with neurologic impairment and gastrostomy tubes is challenging and likely influenced by physicians' experience and perspectives. This study will explore physician attitudes about ARPs and determine if there are relationships to clinical practice and personal characteristics. METHODS: This is a national observational cross-sectional study that used an electronic questionnaire addressing reported practice, attitudes regarding the ARPs, and responses to clinical vignettes. Participants were physicians in Canadian tertiary-care pediatric settings. Descriptive statistics were used to analyze physician attitudes. Multivariable logistic regression modeling was used to determine associations between physician and practice characteristics and likelihood to consider ARP. RESULTS: Eighty three respondents represented 12 institutions, with a majority from general or complex care pediatrics. There was a wide disparity between likelihood to consider ARP in each clinical scenario. Likelihood to consider ARP ranged from to 19% to 78% depending on the scenario. Two scenarios were equally split in whether the respondent would offer an ARP. None of the demographic characteristics were significantly associated with likelihood to consider ARP. Often, gastrojejunostomy tubes alone were considered (56% to 68%). CONCLUSIONS: There is considerable variability in physician attitudes toward and recommendations regarding ARPs to treat gastroesophageal reflux disease. We did not find a significant association with clinical experience or location of practice. More research is needed to define indications and outcomes for ARPs. This is a scenario where shared decision-making, bringing together physician and family knowledge and expertise, is likely the best course of action.


Subject(s)
Attitude of Health Personnel , Gastroesophageal Reflux , Practice Patterns, Physicians' , Humans , Gastroesophageal Reflux/therapy , Cross-Sectional Studies , Canada , Male , Female , Practice Patterns, Physicians'/statistics & numerical data , Child , Nervous System Diseases/therapy , Surveys and Questionnaires , Gastrostomy , Clinical Decision-Making , Fundoplication , Adult
5.
Sci Rep ; 14(1): 11095, 2024 05 15.
Article in English | MEDLINE | ID: mdl-38750085

ABSTRACT

This pilot study focusing on Sickle Cell Anemia (SCA) patients offers a comprehensive and integrative evaluation of respiratory, cardiovascular, hemodynamic, and metabolic variables during exercise. Knowing that diastolic dysfunction is frequent in this population, we hypothesize that a lack of cardiac adaptation through exercise might lead to premature increase in blood lactate concentrations in SCA patients, a potential trigger for acute disease complication. SCA patients were prospectively included in PHYSIO-EXDRE study and underwent a comprehensive stress test with a standardized incremental exercise protocol up to 4 mmol L-1 blood lactate concentration (BL4). Gas exchange, capillary lactate concentration and echocardiography were performed at baseline, during stress test (at ∼ 2 mmol L-1) and BL4. The population was divided into two groups and compared according to the median value of percentage of theoretical peak oxygen uptake (% V ˙ O 2 p e a k t h ) at BL4. Twenty-nine patients were included (42 ± 12 years old, 48% of women). Most patients reached BL4 at low-intensity exercise [median value of predicted power output (W) was 37%], which corresponds to daily life activities. The median value of % V ˙ O 2 p e a k t h at BL4 was 39%. Interestingly, diastolic maladaptation using echocardiography during stress test along with hemoglobin concentration were independently associated to early occurrence of BL4. As BL4 occurs for low-intensity exercises, SCA patients may be subject to acidosis-related complications even during their daily life activities. Beyond assessing physical capacities, our study underlines that diastolic maladaptation during exercise is associated with an early increase in blood lactate concentration.


Subject(s)
Anemia, Sickle Cell , Diastole , Exercise Tolerance , Humans , Anemia, Sickle Cell/physiopathology , Anemia, Sickle Cell/complications , Anemia, Sickle Cell/blood , Male , Female , Adult , Middle Aged , Exercise Test , Pilot Projects , Echocardiography , Adaptation, Physiological , Lactic Acid/blood , Prospective Studies , Oxygen Consumption , Exercise/physiology
6.
Can J Cardiol ; 2024 May 03.
Article in English | MEDLINE | ID: mdl-38705272

ABSTRACT

BACKGROUND: Patients with congenital heart disease (CHD) and their parents face challenges throughout their lives that can lead to anxiety lasting into adulthood. We aim to assess the association between perceived parenting practices and anxiety beyond pediatric medical-surgical histories in adults with CHD. METHODS: A cross-sectional study of adults with CHD was conducted at the Montreal Heart Institute (MHI). Perception of parental practices during childhood was retrospectively assessed using validated self-report questionnaires, while anxiety in adulthood was assessed with the Hospital Anxiety and Depression Scale (HADS). Sociodemographic and medical information were collected from a questionnaire and medical records. Hierarchical multiple linear regression was conducted. RESULTS: Of the 223 participants, 59% were female, and the mean age was 46 ± 14 years. Perceived parenting practices explained more variance (11%) in the anxiety score than pediatric medical-surgical history (2%). In our final model, anxiety was significantly associated with age, parental history of anxiety, and positive parenting practices, but not with overprotection. CONCLUSIONS: Parenting practices are associated with anxiety in adults with CHD beyond pediatric medical-surgical history and sociodemographic. Positive parenting practices may be protective against anxiety in adulthood. Longitudinal studies are needed to determine causality.

8.
Neuropsychology ; 38(5): 416-429, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38300582

ABSTRACT

OBJECTIVE: To determine whether the increased vulnerability to semantic interference previously observed in amnestic mild cognitive impairment (aMCI) is specifically associated with semantic material or if it also affects other types of material, suggesting generalized executive and inhibitory impairment. METHOD: Seventy-two participants divided into two groups (33 aMCI, 39 normal control [NC]) matched for age and education were included. They completed a comprehensive neuropsychological examination, the French version of the Loewenstein Acevedo Scale for Semantic Interference and Learning (LASSI-L; semantic interference test), and a homologous experimental phonological test, the phonological interference and learning test. Independent sample t tests, mixed analysis of variance (ANOVA), and analysis of covariance (ANCOVA) on memory and interference scores were conducted to compare memory and interference in both conditions for both groups. RESULTS: For memory scores, results revealed significant main effects of group (NC > aMCI) and condition (semantic > phonological) and significant interactions (poorer performance in the semantic condition for aMCI). aMCI committed more phonological false recognition errors, were disproportionately more vulnerable to retroactive semantic interference, and showed a higher percentage of intrusion errors associated with proactive semantic interference than NC. CONCLUSIONS: To our knowledge, this is the first study to compare vulnerability to interference in aMCI and normal aging with two similarly designed semantic and phonological word list learning tasks. Taken together, our results suggest that aMCI present with broad difficulties in source memory and inhibition, but that impaired deep semantic processing results in additional semantic intrusion errors during proactive interference and impacts their ability to show good recall after an interference list (greater semantic retroactive interference). Results are discussed according to the level-of-processing and activation/monitoring theories. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Subject(s)
Aging , Amnesia , Cognitive Dysfunction , Semantics , Humans , Cognitive Dysfunction/physiopathology , Male , Female , Aged , Amnesia/physiopathology , Amnesia/complications , Aging/physiology , Neuropsychological Tests , Middle Aged , Aged, 80 and over , Phonetics
9.
Encephale ; 2024 Feb 03.
Article in English | MEDLINE | ID: mdl-38311488

ABSTRACT

INTRODUCTION: Early home visit programmes have been developed to help parents build an adequate relationship with their baby and to prevent child developmental delays and affective disorders. The "Appui Parental" programme is an intervention carried out by nursery nurses to provide intensive parental support to vulnerable families. Before extending this programme, it seemed necessary to evaluate its impact objectively. OBJECTIVES: The main aim is to determine the impact of the "Appui Parental" programme on the change in the child's symptoms. The secondary objectives are to evaluate its effects on mother-child interactions, self-assessed parental competence, perception of social support, primary caregiver's anxiety-depression symptoms, alliance with the nursery nurse, frequency of out-of-home placements, and nursery nurses' stress. METHOD: This non-randomized prospective multicentre study would include 44 families who receive the "Appui Parental" intervention for a one to 20-month-old child (intervention group) and 44 families with the same vulnerability criteria who receive care as usual by the maternal and child protection services (control group). The child, parents, mother-child interaction, nursery nurse-mother alliance, and nursery nurse's stress will be assessed at month one and month 18 after inclusion. Comparisons between groups will be performed. CONCLUSION: This study should provide the public authorities with objective data on this programme's impact and allow them to pursue its generalization. For professionals, the study should confirm the interest in close early parental support through home visits or should lead to rethinking some aspects of the programme.

11.
Neurology ; 102(4): e208020, 2024 Feb 27.
Article in English | MEDLINE | ID: mdl-38271662

ABSTRACT

BACKGROUND AND OBJECTIVES: Patients with isolated/idiopathic REM sleep behavior disorder (iRBD) are at high risk for developing mild cognitive impairment (MCI) and dementia with Lewy bodies (DLB). However, there is a lack of scientific knowledge regarding the accuracy of cognitive screening tools to identify these conditions in iRBD. This study aimed to determine in iRBD the psychometrics of 2 screening tests to discriminate patients with MCI and those at risk of DLB. METHODS: We retrospectively selected and followed 64 patients with polysomnography-confirmed iRBD seen in sleep clinic between 2006 and 2021, 32 with MCI (mean age 68.44 years, 72% men), 32 without MCI (67.78 years, 66% men), and 32 controls (69.84 years, 47% men). Participants underwent a neurologic evaluation and neuropsychological assessment for MCI diagnosis. They also completed the Montreal Cognitive Assessment (MoCA) and Clock Drawing Test (CDT). Fifty-three patients were followed (mean of 5.10 ± 2.64 years); 6 developed DLB, and 16 developed Parkinson disease. An independent cohort of 10 patients with iRBD who later developed DLB was also recruited and followed. Receiver operating characteristic curves with area under the curve (AUC) were performed assessing the discriminant value of the MoCA and CDT. RESULTS: The cut-off values that best differentiated patients who developed DLB from controls were on the MoCA total score (≤25/30 with 100% [95% CI 61%-100%] sensitivity and 78% [61%-89%] specificity, AUC = 0.888) and delayed recall (≤3/5 with 83% [44%-97%] sensitivity and 78% [61%-89%] specificity, AUC = 0.875). Both values yielded a sensitivity of 90% (60%-98%) to detect patients at risk of DLB in the independent cohort. Cutoffs that best discriminated patients with MCI from controls were: ≤25/30 (MoCA total score) with 72% [55%-84%] sensitivity, 78% [61%-89%] specificity, AUC = 0.803 and ≤2/5 (MoCA delayed recall) with 63% [45%-77%] sensitivity, 94% [80%-98%] specificity, AUC = 0.843. No acceptable optimal values were found for the CDT. DISCUSSION: In iRBD, the MoCA demonstrates adequate psychometric properties to identify patients most at risk of developing DLB and to screen for MCI, whereas the CDT does not. CLASSIFICATION OF EVIDENCE: This study provides Class II evidence that the MoCA, but not the CDT, is useful in screening patients with iRBD for the risk of developing DLB.


Subject(s)
Cognitive Dysfunction , Dementia , REM Sleep Behavior Disorder , Male , Humans , Aged , Female , REM Sleep Behavior Disorder/diagnosis , Retrospective Studies , Cognitive Dysfunction/diagnosis , Neuropsychological Tests , Mental Status and Dementia Tests , Dementia/diagnosis
12.
Materials (Basel) ; 17(2)2024 Jan 11.
Article in English | MEDLINE | ID: mdl-38255535

ABSTRACT

For many industrial applications, the simultaneous presence in a material of different functional properties is necessary. The main interest lies in making a single material more versatile and durable, less fragile and more efficient. In this study, two concomitant properties in the same material were mainly studied: resistance to cracking and the increase in its hydrophobic properties. The chosen process was the sol-gel route due to its versatility and the ease of formulating materials from various precursors in order to obtain (multi)functional materials. In this paper, sol-gel coatings were prepared with tetraethoxysilane, methyltrimethoxysilane and diethoxydimethylsilane as precursors. Tetraethoxysilane was mainly used to improve the material's mechanical properties, especially hardness, and silicon oil was added to improve its hydrophobic behavior. The integration of silicon oil was monitored via 29Si NMR. Microstructural characterizations were carried out to correlate the multi-scale properties with the microstructure of the derived films. Young's modulus and hardness were measured to highlight the effect of key formulation parameters on the mechanical strength of the coatings. The synergistic effect of these precursors is underlined as well as the beneficial effect of silicon oil (generated in situ or precondensed).

13.
Laryngoscope ; 134(5): 2422-2429, 2024 May.
Article in English | MEDLINE | ID: mdl-37800866

ABSTRACT

OBJECTIVE: Tympanostomy tube insertion (TTI) is typically accomplished under general anesthesia (GA) in the operating room. We aimed to compare pain between GA and local anesthesia (LA) in surgically naïve children undergoing TTI. Secondary objectives examined patient's quality of life (QoL) and parent's satisfaction. STUDY DESIGN: Prospective single-center study. SETTING: Tertiary pediatric academic center. METHODS: Consecutive children who underwent TTI under GA were compared to patients under LA. Pain standardized observational pain scales (Face, Legs, Activity, Cry, Consolability Scale [FLACC], Children's hospital of Eastern Ontario Pain Scale [CHEOPS]) were completed pre-procedure, during the first tympanostomy and second tympanostomy, and post-procedure, as well as 1 week postoperatively. General health-related QoL (PedsQL) and QoL specific to otitis media (OM-6) were measured before insertion and 1 month postoperatively. Parental satisfaction was also evaluated using a qualitative scale. RESULTS: LA group had statistically significant higher pain levels at the beginning (7.3 vs. 0), during the first tympanostomy (7.8 vs. 0), during the second tympanostomy (7.7 vs. 0), and at end of the procedure (6.9 vs. 0) with the FLACC scale (all p < 0.01). Results were similar with the CHEOPS scale. No pain was noted 1 week after surgery in either group. Both groups had similar improvement in their QoL (p > 0.05). Minor complication occurred at a similar rate (p > 0.05). Parents were equally satisfied with their choice of anesthesia in both groups when initially questioned after the procedure (p > 0.05). CONCLUSIONS: Children experienced significantly less pain under GA than LA. If LA is to be used, pain and distress-reducing strategies are critical. Shared decision-making with families is essential. LEVEL OF EVIDENCE: 3 Laryngoscope, 134:2422-2429, 2024.


Subject(s)
Anesthesia, Local , Quality of Life , Child , Humans , Infant , Anesthesia, Local/methods , Prospective Studies , Middle Ear Ventilation/methods , Anesthesia, General/adverse effects , Pain
14.
Res Microbiol ; 175(4): 104177, 2024.
Article in English | MEDLINE | ID: mdl-38159786

ABSTRACT

S. lividans and S. coelicolor are phylogenetically closely related strains with different abilities to produce the same specialized metabolites. Previous studies revealed that the strong antibiotic producer, S. coelicolor, had a lower ability to assimilate nitrogen and phosphate than the weak producer, Streptomyces lividans, and this resulted into a lower growth rate. A comparative proteomic dataset was used to establish the consequences of these nutritional stresses on the abundance of proteins of the translational apparatus of these strains, grown in low and high phosphate availability. Our study revealed that most proteins of the translational apparatus were less abundant in S. coelicolor than in S. lividans whereas it was the opposite for ET-Tu 3 and a TrmA-like methyltransferase. The expression of the latter being known to be under the positive control of the stringent response whereas that of the other ribosomal proteins is under its negative control, this indicated the occurrence of a strong activation of the stringent response in S. coelicolor. Furthermore, in S. lividans, ribosomal proteins were more abundant in phosphate proficiency than in phosphate limitation suggesting that a limitation in phosphate, that was also shown to trigger RelA expression, contributes to the induction of the stringent response.


Subject(s)
Anti-Bacterial Agents , Bacterial Proteins , Gene Expression Regulation, Bacterial , Phosphates , Streptomyces coelicolor , Streptomyces coelicolor/metabolism , Streptomyces coelicolor/genetics , Streptomyces coelicolor/growth & development , Anti-Bacterial Agents/biosynthesis , Anti-Bacterial Agents/metabolism , Bacterial Proteins/genetics , Bacterial Proteins/metabolism , Phosphates/metabolism , Streptomyces lividans/metabolism , Streptomyces lividans/genetics , Proteome , Ribosomal Proteins/metabolism , Ribosomal Proteins/genetics , Protein Biosynthesis , Nitrogen/metabolism , Proteomics , Stress, Physiological
15.
Anal Chim Acta ; 1282: 341828, 2023 Nov 22.
Article in English | MEDLINE | ID: mdl-37923401

ABSTRACT

Phthalic acid esters, largely referred to as phthalates, are today acknowledged as important pollutants used in the manufacture of polyvinyl chloride (PVC)-based plastics, whose use extends to almost every aspect of modern life. The risk of exposure to phthalates is particularly relevant as high concentrations are regularly found in drinking water, food-contact materials and medical devices, motivating an immense body of research devoted to methods for their detection in liquid samples. Conversely, phthalate vapors have only recently been acknowledged as potentially important atmospheric pollutants and as early fire indicators; additionally, deposition of these vapors can pose significant problems to the proper functioning of spacecraft and diverse on-board devices, leading to major space agencies recognizing the need of developing vapor-responsive phthalate sensors. In this manuscript we present a literature survey on solution- and vapor-responsive sensors and analytical assays for the detection of phthalates, providing a detailed analysis of a vast array of analytical data to offer a clear idea on the analytical performance (limits of detection and quantification, linear range) and advantages provided by each class of sensor covered in this review (electrochemical, optical and vapor-responsive) in the context of their potential real-life applications; the manuscript also gives detailed fundamental information on the various physicochemical responses exploited by these sensors and assays that could potentially be harnessed by new researchers entering the field.

16.
Neurology ; 101(21): e2094-e2102, 2023 Nov 21.
Article in English | MEDLINE | ID: mdl-37788935

ABSTRACT

BACKGROUND AND OBJECTIVES: Guillain-Barré syndrome (GBS) has been inconsistently associated with some coronavirus disease 2019 (COVID-19) vaccines. We aimed to quantify the risk of GBS according to the type of COVID-19 vaccine in a large population. METHODS: Using the French National Health Data System linked to the COVID-19 vaccine database, we analyzed all individuals aged 12 years or older admitted for GBS from December 27, 2020, to May 20, 2022. We estimated the relative incidence (RI) of GBS within 1-42 days after vaccination up to the first booster dose compared with baseline periods using a self-controlled case series design. We then derived the number of cases attributable to the vaccination. Analyses were adjusted for the period and stratified by age group, sex, and for the presence of severe acute respiratory syndrome coronavirus 2 or common acute infections. RESULTS: Of 58,530,770 people aged 12 years or older, 88.8% received at least 1 COVID-19 vaccine dose and 2,229 were hospitalized for GBS during the study period. Patients had a median age of 57 years, and 60% were male patients. The RI of GBS between 1-42 days was 2.5 (95% CI 1.8-3.6) for the first dose of ChAdOx1-S and 2.4 (95% CI 1.2-5.0) for the unique dose of Ad26.COV2.S vaccine. We estimated 6.5 attributable GBS cases per million persons having received a first dose of ChAdOx1-S and 5.7 cases per million for the Ad26.COV2.S vaccine. Except for the age group of 12-49 years after the second dose of the messenger RNA (mRNA)-1273 vaccine (RI 2.6, 95% CI 1.2-5.5), none of the RI estimates were found significantly increased for the mRNA vaccines. DISCUSSION: In summary, we found increased risks of GBS after the first administration of ChAdOx1-S and Ad26.COV2.S vaccines. In this comprehensive assessment at the French population level, there was no statistically significant increase in the risk of GBS after the administration of mRNA vaccines. This is reassuring in the context of the ongoing and future use of mRNA-based booster vaccination.


Subject(s)
COVID-19 , Guillain-Barre Syndrome , Influenza Vaccines , Influenza, Human , Humans , Male , Child , Adolescent , Young Adult , Adult , Middle Aged , Female , Influenza, Human/complications , COVID-19 Vaccines/adverse effects , Ad26COVS1 , Guillain-Barre Syndrome/epidemiology , Guillain-Barre Syndrome/etiology , COVID-19/epidemiology , COVID-19/prevention & control , COVID-19/complications , Vaccination/adverse effects , ChAdOx1 nCoV-19 , RNA, Messenger , mRNA Vaccines
17.
Open Forum Infect Dis ; 10(10): ofad460, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37808897

ABSTRACT

Background: Knowing the duration of effectiveness of coronavirus disease 2019 (COVID-19) booster doses is essential to providing decision-makers with scientific arguments about the frequency of subsequent injections. We estimated the level of protection against COVID-19-related hospitalizations (Omicron BA.4-BA.5) over time after vaccination, accounting for breakthrough infections. Methods: In this nationwide case-control study, all cases of hospitalizations for COVID-19 identified in the comprehensive French National Health Data System between June 1, 2022, and October 15, 2022, were matched with up to 10 controls by year of birth, sex, department, and an individual COVID-19 hospitalization risk score. Conditional logistic regressions were used to estimate the level of protection against COVID-19-related hospitalizations conferred by primary and booster vaccination, accounting for history of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Results: A total of 38 839 cases were matched to 377 653 controls; 19.2% and 9.9% were unvaccinated, respectively, while 68.2% and 77.7% had received ≥1 booster dose. Protection provided by primary vaccination reached 45% (95% CI, 42%-47%). The incremental effectiveness of booster doses ranged from 69% (95% CI, 67%-71%; ≤2 months) to 22% (95% CI, 19%-25%; ≥6 months). Specifically, the second booster provided an additional protection compared with the first ranging from 61% (95% CI, 59%-64%; ≤2 months) to 7% (95% CI, 2%-13%; ≥4 months). Previous SARS-CoV-2 infection conferred a strong, long-lasting protection (51% ≥20 months). There was no incremental effectiveness of a second booster among individuals infected since the first booster. Conclusions: In the era of Omicron BA.4 and BA.5 predominance, primary vaccination still conferred protection against COVID-19 hospitalization, while booster doses provided an additional time-limited protection. The second booster had no additional protection in case of infection since the first booster.

18.
Article in English | MEDLINE | ID: mdl-37672232

ABSTRACT

The management of pain in pediatrics is multimodal and includes non-pharmacologic and pharmacologic approaches. Opioids, and particularly morphine and hydromorphone, are frequently used to treat moderate-to-severe pain. The goals of this review are to describe the pharmacological characteristics of both drugs, to cover the latest evidence of their respective indications, and to promote their safe use in pediatrics. Morphine is the most studied opioid in children and is known to be safe and effective. Morphine and hydromorphone can be used to manage acute pain and are usually avoided when treating chronic non-cancer pain. Current evidence suggests that both opioids have a similar efficacy and adverse effect profile. Hydromorphone has not been studied in neonates but in some centers, it has been used instead of morphine for certain patients. In palliative care, the use of opioids is often indicated and their benefits extend beyond analgesia; indications include treatment of central neuropathic pain in children with severe neurologic impairment and treatment of respiratory distress in the imminently dying patients. The longstanding belief that the use of well-titrated opioids hastens death should be abandoned as robust evidence has shown the opposite. With the current opioid crisis, a responsible use of opioids should be promoted, including limiting the opioid prescription to the patient's anticipated needs, optimizing a multimodal analgesic plan including the use of non-pharmacological measures and non-opioid medications, and providing information on safe storage and disposal to patients and families. More data is needed to better guide the use of morphine and hydromorphone in children.

19.
Microorganisms ; 11(6)2023 May 31.
Article in English | MEDLINE | ID: mdl-37374972

ABSTRACT

Streptomyces coelicolor M145 is a model strain extensively studied to elucidate the regulation of antibiotic biosynthesis in Streptomyces species. This strain abundantly produces the blue polyketide antibiotic, actinorhodin (ACT), and has a low lipid content. In a process designed to delete the gene encoding the isocitrate lyase (sco0982) of the glyoxylate cycle, an unexpected variant of S. coelicolor was obtained besides bona fide sco0982 deletion mutants. This variant produces 7- to 15-fold less ACT and has a 3-fold higher triacylglycerol and phosphatidylethanolamine content than the original strain. The genome of this variant was sequenced and revealed that 704 genes were deleted (9% of total number of genes) through deletions of various sizes accompanied by the massive loss of mobile genetic elements. Some deletions include genes whose absence could be related to the high total lipid content of this variant such as those encoding enzymes of the TCA and glyoxylate cycles, enzymes involved in nitrogen assimilation as well as enzymes belonging to some polyketide and possibly trehalose biosynthetic pathways. The characteristics of this deleted variant of S. coelicolor are consistent with the existence of the previously reported negative correlation existing between lipid content and antibiotic production in Streptomyces species.

20.
Glob Health Med ; 5(2): 118-121, 2023 Apr 30.
Article in English | MEDLINE | ID: mdl-37128221

ABSTRACT

The clinical trial industry has encountered challenging circumstances in which the increasing number of trials outpaces the number of trial specialists. For instance, there has been an unprecedented demand for clinical trials following the Covid-19 pandemic, which has worsened the global shortage of qualified personnel. It is therefore imperative to produce more qualified clinical trial professionals. An adaptive and collaborative training model was implemented by the National Center for Global Health and Medicine through the Department of International Trials. This aimed at building capacity among health workers in developing countries and providing them with the skills to be able to conduct all phases of the clinical trial from protocol design to publication of results. It also seeks to foster collaboration and partnership between local health workers and international experts. Since 2016, we have implemented a Japan-led training program, and since 2020, the COVID-19 pandemic has ushered in a shift from a single Train-the-trainer model (ToT) to a mixed model, the Evolving Partnership Training (ePT). In this model, we applied four different methods: train-the-trainer, needs-oriented training, open symposiums, and advanced learning. The total number of training participants increased exponentially from a total of 41 between 2016-2020 to 2,810 in 2021. Our experience has proven that despite the constraint of the pandemic, the ePT is a viable approach compared to a single method for providing quality training and increasing the number of participants.

SELECTION OF CITATIONS
SEARCH DETAIL
...