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1.
West Afr J Med ; 41(4): 397-405, 2024 04 30.
Artigo em Inglês | MEDLINE | ID: mdl-39002170

RESUMO

BACKGROUND: Over the years efforts has been made through public health education to change the knowledge, attitude and practice of epilepsy and seizures among the populace in Nigeria. One surrogate method of reviewing the impact of these educational interventions includes changes in treatment-seeking behavior of People Living With Epilepsy and the reasons for their choices of treatment. METHODS: This was a cross-sectional descriptive study. Data were collected from People Living With Epilepsy attending the medical outpatient clinics in two tertiary hospitals in Enugu, Enugu State southeast Nigeria. RESULTS: A total 276 people living with epilepsy were recruited with a mean age of 30.1 years and a median age of 25 years. After the onset of epilepsy, 76(27.5%) and 70(25.4%) visited general hospitals and teaching hospitals respectively, while prayer houses and traditional healing centers were first visited by 54(19.6%) and 40(14.5%) respectively. As a second choice of care 9(3.3%) and 13(4.7%) visited prayer houses and traditional healing centers. Only 42(15.2%) selected their treatment center because they were confident of getting a cure however, this was highest for those that visited traditional healing centers 11(27.5%). The age of onset of epilepsy positively correlated with selecting orthodox treatment at the choice of care, while occupational status negatively correlated with selecting orthodox care at the same period. CONCLUSIONS: Health care seeking behaviors among PLWE in Southeast Nigeria might have changed over the years as more people living with epilepsy were more likely to select orthodox treatment compared to non-orthodox means of treatment.


CONTEXTE: Au fil des ans, des efforts ont été déployés par le biais de l'éducation en santé publique pour changer les connaissances, les attitudes et les pratiques concernant l'épilepsie et les crises d'épilepsie parmi la population au Nigeria. Une méthode indirecte pour examiner l'impact de ces interventions éducatives comprend les changements dans le comportement de recherche de traitement des personnes vivant avec l'épilepsie et les raisons de leurs choix de traitement. MÉTHODES: Il s'agit d'une étude descriptive transversale. Les données ont été collectées auprès de personnes vivant avec l'épilepsie fréquentant les cliniques de consultations externes médicales dans deux hôpitaux tertiaires à Enugu, dans l'État d'Enugu, au sud-est du Nigeria. RÉSULTATS: Au total, 276 personnes vivant avec l'épilepsie ont été recrutées, avec un âge moyen de 30,1 ans et un âge médian de 25 ans. Après le début de l'épilepsie, 76 (27,5 %) et 70 (25,4 %) ont consulté respectivement des hôpitaux généraux et des hôpitaux universitaires, tandis que les lieux de prière et les centres de guérison traditionnelle ont été les premiers consultés par respectivement 54 (19,6 %) et 40 (14,5 %). Comme deuxième choix de soins, 9 (3,3 %) et 13 (4,7 %) ont consulté des lieux de prière et des centres de guérison traditionnelle. Seuls 42 (15,2 %) ont choisi leur centre de traitement parce qu'ils étaient confiants d'obtenir une guérison, cependant, ce taux était le plus élevé pour ceux qui ont consulté les centres de guérison traditionnelle (11 soit 27,5 %). L'âge de début de l'épilepsie était positivement corrélé avec la sélection d'un traitement orthodoxe comme choix de soins, tandis que le statut professionnel était négativement corrélé avec la sélection de soins orthodoxes au même moment. CONCLUSIONS: Les comportements de recherche de soins parmi les personnes vivant avec l'épilepsie dans le sud-est du Nigeria ont peut-être changé au fil des ans, car davantage de personnes vivant avec l'épilepsie étaient plus susceptibles de choisir un traitement orthodoxe par rapport aux moyens de traitement non orthodoxes. MOTS-CLÉS: Épilepsie, Comportement de recherche de soins, Guérisseurs traditionnels, Lieux de prière, Médecine orthodoxe, sud-est du Nigeria.


Assuntos
Epilepsia , Conhecimentos, Atitudes e Prática em Saúde , Aceitação pelo Paciente de Cuidados de Saúde , Humanos , Nigéria , Epilepsia/terapia , Epilepsia/epidemiologia , Epilepsia/psicologia , Adulto , Estudos Transversais , Masculino , Feminino , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Pessoa de Meia-Idade , Adulto Jovem , Adolescente , Inquéritos e Questionários
2.
Niger J Clin Pract ; 27(5): 592-598, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38842708

RESUMO

BACKGROUND: Imaging is vital for assessing pancreaticobiliary diseases. AIM: The aim of the study was to investigate the spectrum and pattern of pancreaticobiliary diseases in adult Nigerians using magnetic resonance cholangiopancreatography (MRCP). METHODS: This was a retrospective, descriptive cross-sectional study. The electronic radiological records of 110 adult Nigerians who had undergone MRCP were reviewed. The MRCP images were evaluated for bile duct dilatation, intraluminal filling defects, strictures, calculi, and other abnormalities. RESULTS: There were 45 males (40.9%) and 65 females (59.1%) aged 18-83 years, with a mean age of 51.93 ± 15.22 years. Jaundice (59.1%) and right hypochondrial pain (31.8%) were the most common presenting complaints. Gallstones (32.7%), common bile duct strictures (15.5%), choledocholithiasis (11.8%), pancreatic head carcinoma (10.9%), and gallbladder carcinoma (2.7%) were the most frequent abnormalities. There was biliary obstruction in 56.4% of participants, mostly at the distal and proximal common bile duct. Other findings include hepatomegaly (23.6%), hepatic cysts (6.4%), hepatic steatosis (0.9%), duodenal wall thickening (1.8%), and ascites (5.5%). MRCP was normal in 25 (22.7%) participants. CONCLUSION: Gallstones were the predominant pathology of the various pancreaticobiliary diseases, while Pancreatic head and gallbladder carcinoma were the most common malignant diseases.


Assuntos
Colangiopancreatografia por Ressonância Magnética , Pancreatopatias , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Adulto , Idoso , Estudos Transversais , Estudos Retrospectivos , Nigéria/epidemiologia , Idoso de 80 Anos ou mais , Adolescente , Adulto Jovem , Pancreatopatias/diagnóstico por imagem , Pancreatopatias/epidemiologia , Doenças Biliares/diagnóstico por imagem , Doenças Biliares/epidemiologia , População da África Ocidental
3.
Zh Nevrol Psikhiatr Im S S Korsakova ; 124(5. Vyp. 2): 39-52, 2024.
Artigo em Russo | MEDLINE | ID: mdl-38934665

RESUMO

Insomnia is a serious and widespread public health problem, but is often undetected and patients do not receive needed treatment. Insomnia is often comorbid with other diseases and conditions, such as arterial hypertension, type 2 diabetes mellitus, pain syndromes, anxiety and depressive disorders, etc. A separate problem is drug-induced insomnia, when patients develop symptoms due to other diseases treatments. Insomnia has a negative effect on the prognosis of comorbid diseases, including an increased risk of death, more severe disease, and decreased quality of life. The presence of sleep disorders makes it difficult to effectively treat the underlying disease, so clinical guidelines draft for the evaluation and treatment of insomnia in multimorbid patients is proposed. Diagnostic methods are reviewed and recommendations are given for the treatment of acute and chronic insomnia and features of the treatment of insomnia in multimorbid patients. A clinical algorithm has been proposed to determine treatment tactics in multimorbid patients.


Assuntos
Guias de Prática Clínica como Assunto , Distúrbios do Início e da Manutenção do Sono , Humanos , Multimorbidade , Qualidade de Vida , Distúrbios do Início e da Manutenção do Sono/terapia , Distúrbios do Início e da Manutenção do Sono/epidemiologia , Distúrbios do Início e da Manutenção do Sono/diagnóstico
4.
Environ Res ; : 119505, 2024 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-38945509

RESUMO

Tail resorption during amphibian metamorphosis is one of the most dramatic processes that is obligatorily dependent on thyroid hormone (TH). Heavy metals could result in thyroid gland damages and disturb TH homeostasis. Lead (Pb) and copper (Cu) often co-exist in natural aquatic ecosystems. However, there is still little information on how tail resorption responds to alone or combined exposure to Pb and Cu. Our study investigated the effects of Pb and Cu alone or combined exposure on the morphological parameters of the tail, histological changes of thyroid gland and tail, and gene expression programs involved in cell death of the tail in Bufo gargarizans tadpoles at the climax of metamorphosis. Results demonstrated that Pb, Cu and Pb-Cu mixture exposure resulted in a significantly longer tail compared with control. Damages to notochord, muscle, skin and spinal cord of the tail were found in Pb and Cu exposure groups. The colloid area, the height of follicular cells and number of phagocytic vesicles of thyroid gland in Pb-Cu mixture exposure groups were significantly reduced. In addition, the expression levels of TH, apoptosis, autophagy, degradation of cellular components and oxidative stress-related genes in the tail were significantly altered following Pb and Cu exposure. The present work revealed the relationship between environmental pollutants and tail resorption, providing scientific basis for amphibian protection.

5.
ESMO Open ; 9(6): 103475, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38838499

RESUMO

BACKGROUND: EMIT-1 is a national, observational, single-arm trial designed to assess the value of the Prosigna, Prediction Analysis of Microarray using the 50 gene classifier (PAM50)/Risk of Recurrence (ROR), test as a routine diagnostic tool, examining its impact on adjuvant treatment decisions, clinical outcomes, side-effects and cost-effectiveness. Here we present the impact on treatment decisions. PATIENTS AND METHODS: Patients with hormone receptor-positive, human epidermal growth factor receptor 2-negative pT1-pT2 lymph node-negative early breast cancer (EBC) were included. The Prosigna test and standard histopathology assessments were carried out. Clinicians' treatment decisions were recorded before (pre-Prosigna) and after (post-Prosigna) the Prosigna test results were disclosed. RESULTS: Of 2217 patients included, 2178 had conclusive Prosigna results. The pre-Prosigna treatment decisions were: no systemic treatment (NT) in 27% of patients, endocrine treatment alone (ET) in 38% and chemotherapy (CT) followed by ET (CT + ET) in 35%. Post-Prosigna treatment decisions were 25% NT, 51% ET and 24% CT + ET, respectively. Adjuvant treatment changed in 28% of patients, including 21% change in CT use. Among patients assigned to CT + ET pre-Prosigna, 45% were de-escalated to ET post-Prosigna. Of patients assigned to ET, 12% were escalated to CT + ET and 8% were de-escalated to NT; of those assigned to NT, 18% were escalated to ET/CT + ET. CT was more frequently recommended for patients aged ≤50 years. In the subgroup with pT1c-pT2 G2 and intermediate Ki67 (0.5-1.5× local laboratory median Ki67 score), the pre-Prosigna CT treatment decision varied widely across hospitals (3%-51%). Post-Prosigna, the variability of CT use was markedly reduced (8%-24%). The correlation between Ki67 and ROR score within this subgroup was poor (r = 0.25-0.39). The median ROR score increased by increasing histological grade, but the ROR score ranges were wide (for G1 0-79, G2 0-90, G3 16-94). CONCLUSION: The Prosigna test result changed adjuvant treatment decisions in all EBC clinical risk groups, markedly decreased the CT use for patients categorized as higher clinical risk pre-Prosigna and reduced treatment decision discrepancies between hospitals.


Assuntos
Neoplasias da Mama , Humanos , Neoplasias da Mama/patologia , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/terapia , Feminino , Pessoa de Meia-Idade , Estudos Prospectivos , Quimioterapia Adjuvante/métodos , Idoso , Adulto , Linfonodos/patologia , Idoso de 80 Anos ou mais
6.
Sud Med Ekspert ; 67(3): 45-49, 2024.
Artigo em Russo | MEDLINE | ID: mdl-38887071

RESUMO

The article is devoted to the problem of diagnosis and treatment strategy of Buerger's disease rarely found in the expert and clinical practice, that is inflammatory disease of unknown etiology, affecting mainly small and medium arteries and veins of limbs. Vascular surgeons around the world have been solving this problem for many years, both in terms of timely diagnosis of this disease and its proper pathogenic treatment. The authors of the article described an expert case of Buerger's disease larvated course in 15-years-old girl, which primarily was mistakenly assessed by specialists as iatrogenic pathology of right forearm vessels in injecting aminazin solution that, according to the clinicians' opinion, led to dry gangrene formation of right wrist and its subsequent amputation. The results of the forensic histological study and retrospective analysis of all child's medical documents allowed to correctly diagnose this rare pathology but only on the stage of commission forensic medical examination in the framework of the initiated criminal proceeding against several leading medical organizations in Saint-Petersburg with a pediatric profile. The authors noted the role of routine medical manipulation in manifestation of larvated pathologic process in a teenage girl in addition to full health and well-being. The objective of present article is devoted to understanding this problem.


Assuntos
Doença Iatrogênica , Humanos , Feminino , Adolescente , Granulomatose com Poliangiite/diagnóstico , Granulomatose com Poliangiite/patologia , Amputação Cirúrgica/métodos , Doenças Raras/patologia , Gangrena/etiologia , Gangrena/patologia , Patologia Legal/métodos , Diagnóstico Diferencial
7.
Int J Pharm ; 660: 124340, 2024 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-38878838

RESUMO

The therapeutic efficacy of camptothecin (CPT), a potent antitumor alkaloid, is hindered by its hydrophobic nature and instability, limiting its clinical use in treating cutaneous squamous cell carcinoma (SCC). This study introduces a novel nano drug delivery system (NDDS) utilizing functionalized mesoporous silica nanoparticles (FMSNs) for efficient CPT delivery. The FMSNs were loaded with CPT and subsequently coated with chitosan (CS) for enhanced stability and bioadhesion. Importantly, CpG oligodeoxynucleotide (CpG ODN) was attached onto the CS-coated FMSNs to leverage the immunostimulatory properties of CpG ODN, augmenting the chemotherapy's efficacy. The final formulation FMSN-CPT-CS-CpG displayed an average size of 241 nm and PDI of 0.316 with an encapsulation efficiency of 95 %. Comprehensive in vitro and in vivo analyses, including B16F10 cells and DMBA/TPA-induced SCC murine model, demonstrated that the FMSN-CPT-CS-CpG formulation significantly enhanced cytotoxicity against B16F10 cells and induced complete regression in 40 % of the in vivo subjects, surpassing the efficacy of standard CPT and FMSN-CPT treatments. This study highlights the potential of combining chemotherapeutic and immunotherapeutic agents in an NDDS for targeted, efficient skin cancer treatment.


Assuntos
Camptotecina , Quitosana , Nanopartículas , Oligodesoxirribonucleotídeos , Dióxido de Silício , Neoplasias Cutâneas , Animais , Dióxido de Silício/química , Dióxido de Silício/administração & dosagem , Oligodesoxirribonucleotídeos/administração & dosagem , Oligodesoxirribonucleotídeos/química , Neoplasias Cutâneas/tratamento farmacológico , Nanopartículas/química , Camptotecina/administração & dosagem , Camptotecina/química , Camptotecina/farmacologia , Linhagem Celular Tumoral , Camundongos , Quitosana/química , Quitosana/administração & dosagem , Feminino , Antineoplásicos Fitogênicos/administração & dosagem , Antineoplásicos Fitogênicos/química , Antineoplásicos Fitogênicos/farmacologia , Porosidade , Camundongos Endogâmicos C57BL , Portadores de Fármacos/química , Carcinoma de Células Escamosas/tratamento farmacológico , Melanoma Experimental/tratamento farmacológico , Sobrevivência Celular/efeitos dos fármacos
8.
Osteoporos Int ; 35(8): 1313-1322, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38836946

RESUMO

Vitamin D is important for musculoskeletal health. Concentrations of 25-hydroxyvitamin D, the most commonly measured metabolite, vary markedly around the world and are influenced by many factors including sun exposure, skin pigmentation, covering, season and supplement use. Whilst overt vitamin D deficiency with biochemical consequences presents an increased risk of severe sequelae such as rickets, osteomalacia or cardiomyopathy and usually warrants prompt replacement treatment, the role of vitamin D supplementation in the population presents a different set of considerations. Here the issue is to keep, on average, the population at a level whereby the risk of adverse health outcomes in the population is minimised. This position paper, which complements recently published work from the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases, addresses key considerations regarding vitamin D assessment and intervention from the population perspective. This position paper, on behalf of the International Osteoporosis Foundation Vitamin D Working Group, summarises the burden and possible amelioration of vitamin D deficiency in global populations. It addresses key issues including screening, supplementation and food fortification.


Assuntos
Suplementos Nutricionais , Saúde Global , Deficiência de Vitamina D , Vitamina D , Humanos , Deficiência de Vitamina D/complicações , Deficiência de Vitamina D/epidemiologia , Deficiência de Vitamina D/tratamento farmacológico , Vitamina D/sangue , Vitamina D/análogos & derivados , Vitamina D/uso terapêutico , Alimentos Fortificados , Programas de Rastreamento/métodos , Conservadores da Densidade Óssea/uso terapêutico
9.
Sci Rep ; 14(1): 12245, 2024 05 28.
Artigo em Inglês | MEDLINE | ID: mdl-38806508

RESUMO

Following the discovery of circulating tumor cells (CTCs) in the peripheral blood of cancer patients, CTCs were initially postulated to hold promise as a valuable prognostic tool through liquid biopsy. However, a decade and a half of accumulated data have revealed significant complexities in the investigation of CTCs. A challenging aspect lies in the reduced expression or complete loss of key epithelial markers during the epithelial-mesenchymal transition (EMT). This likely hampers the identification of a pathogenetically significant subset of CTCs. Nevertheless, there is a growing body of evidence regarding the prognostic value of such molecules as CD24 expressing in the primary breast tumor. Herewith, the exact relevance of CD24 expression on CTCs remains unclear. We used two epithelial markers (EpCAM and cytokeratin 7/8) to assess the count of CTCs in 57 breast cancer patients, both with (M0mts) and without metastasis (M0) during the follow-up period, as well as in M1 breast cancer patients. However, the investigation of these epithelial markers proved ineffective in identifying cell population expressing different combinations of EpCAM and cytokeratin 7/8 with prognostic significance for breast cancer metastases. Surprisingly, we found CD24+ circulating cells (CCs) in peripheral blood of breast cancer patients which have no epithelial markers (EpCAM and cytokeratin 7/8) but was strongly associated with distant metastasis. Namely, the count of CD45-EpCAM-CK7/8-CD24+ N-cadherin-CCs was elevated in both groups of patients, those with existing metastasis and those who developed metastases during the follow-up period. Simultaneously, an elevation in these cell counts beyond the established threshold of 218.3 cells per 1 mL of blood in patients prior to any treatment predicted a 12-fold risk of metastases, along with a threefold decrease in distant metastasis-free survival over a 90-month follow-up period. The origin of CD45-EpCAM-CK7/8-CD24+ N-cadherin-CCs remains unclear. In our opinion their existence can be explained by two most probable hypotheses. These cells could exhibit a terminal EMT phenotype, or it might be immature cells originating from the bone marrow. Nonetheless, if this hypothesis holds true, it's worth noting that the mentioned CCs do not align with any of the recognized stages of monocyte or neutrophil maturation, primarily due to the presence of CD45 expression in the myeloid cells. The results suggest the presence in the peripheral blood of patients with metastasis (both during the follow-up period and prior to inclusion in the study) of a cell population with a currently unspecified origin, possibly arising from both myeloid and tumor sources, as confirmed by the presence of aneuploidy.


Assuntos
Biomarcadores Tumorais , Neoplasias da Mama , Antígeno CD24 , Molécula de Adesão da Célula Epitelial , Células Neoplásicas Circulantes , Humanos , Células Neoplásicas Circulantes/metabolismo , Células Neoplásicas Circulantes/patologia , Molécula de Adesão da Célula Epitelial/metabolismo , Antígeno CD24/metabolismo , Feminino , Neoplasias da Mama/patologia , Neoplasias da Mama/metabolismo , Neoplasias da Mama/sangue , Neoplasias da Mama/mortalidade , Prognóstico , Pessoa de Meia-Idade , Biomarcadores Tumorais/sangue , Biomarcadores Tumorais/metabolismo , Idoso , Adulto , Transição Epitelial-Mesenquimal , Queratina-7/metabolismo , Queratina-8/metabolismo
10.
Heliyon ; 10(10): e31168, 2024 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-38803856

RESUMO

This study focused on the testing of castor oil leaf as corrosion inhibitor of mild steel in H2SO4. It involved the examination of the dynamics of molecular forces at the inhibitor and mild steel interface. Findings of the study will promote industrial diversification of castor oil leaf. On the experiment, bio-molecular compounds of the leaf were identified by gas chromatography mass spectrophotometer. Then, gravimetric and potentiodynamic polarization techniques were employed, where the efficacy and type of the inhibitor were determined. Considering the gravimetric process, factors of inhibitor concentration (0.2 g/L - 1.0 g/L), temperature (303 K-333 K) and time (8 h-24 h) were considered, with the inhibitor efficiency as the response. The efficiency was determined and optimized using response surface methodology (RSM) and artificial neural network (ANN). On the other hand, potentiodynamic polarization process was used to identify the type of inhibitor. Adsorption quantities were ascertained through the subjection of the experimental raw data to various adsorption isotherms. The analyses showed that castor oil leaf contains methyl nicotinate and pyridine-4-carbohydrazide. The bio-molecular compounds possess heteroatoms (N, S and O), signifying strong corrosion inhibitive tendencies. High efficiency (96.25 %) was obtained, with ANN having better prediction capability than the RSM. Potentiodynamic polarization curves revealed castor oil leaf as mixed-type inhibitor. On the adsorption phenomenon, the process of the inhibition was best fitted by Frumkin isotherm, revealing physical adsorption mechanism of Gibb's free energy less than -40 kJ/mol. As a mixed-type inhibitor, castor oil leaf should be applied for mitigation of anodic and cathodic corrosion.

11.
Zh Nevrol Psikhiatr Im S S Korsakova ; 124(4. Vyp. 2): 77-85, 2024.
Artigo em Russo | MEDLINE | ID: mdl-38696155

RESUMO

One of the reasons for the development or worsening of cognitive impairment (CI) may be the use of a number of drugs: non-steroidal anti-inflammatory drugs, antiarrhythmics, antidepressants, glucocorticosteroids, antitumor drugs and a number of others. The negative effect of drugs on cognitive functions is realized due to many pathophysiological mechanisms: disruption of hormonal regulation, decreased neuronal excitability, increased activity of gamma-aminobutyric acid receptors, decreased cerebral circulation, atrophic changes in the brain; many mechanisms have not been fully established. Risk factors for the development of drug-induced CIs are: old age or childhood, brain damage, chronic diseases, genetic factors, the patient's initial CI, polypharmacy, dose and duration of drug use, acute infectious diseases, metabolic disorders, dehydration, acute urinary retention, etc. To diagnose and differentially diagnose drug-induced CI, it is necessary to establish a connection between the start of taking a suspected drug-inducer and a decrease in cognitive functions. The first step in the treatment of drug-induced CI is the abolition of an inducer drug or a reduction in its dose, in cases where it is impossible to discontinue the drug and there is no replacement, special slow-release dosage forms can be considered. The main measures to prevent drug-induced CI include the use of drugs with the lowest risk of their development, assessment of drug interactions, and the use of modern scales to assess the risk of developing this side-effect (anticholinergic burden scale, etc.).


Assuntos
Disfunção Cognitiva , Demência , Humanos , Disfunção Cognitiva/induzido quimicamente , Demência/induzido quimicamente , Demência/tratamento farmacológico , Fatores de Risco
12.
Cell ; 187(13): 3262-3283.e23, 2024 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-38815580

RESUMO

In eukaryotes, the Suv39 family of proteins tri-methylate lysine 9 of histone H3 (H3K9me) to form constitutive heterochromatin. However, how Suv39 proteins are nucleated at heterochromatin is not fully described. In the fission yeast, current models posit that Argonaute1-associated small RNAs (sRNAs) nucleate the sole H3K9 methyltransferase, Clr4/SUV39H, to centromeres. Here, we show that in the absence of all sRNAs and H3K9me, the Mtl1 and Red1 core (MTREC)/PAXT complex nucleates Clr4/SUV39H at a heterochromatic long noncoding RNA (lncRNA) at which the two H3K9 deacetylases, Sir2 and Clr3, also accumulate by distinct mechanisms. Iterative cycles of H3K9 deacetylation and methylation spread Clr4/SUV39H from the nucleation center in an sRNA-independent manner, generating a basal H3K9me state. This is acted upon by the RNAi machinery to augment and amplify the Clr4/H3K9me signal at centromeres to establish heterochromatin. Overall, our data reveal that lncRNAs and RNA quality control factors can nucleate heterochromatin and function as epigenetic silencers in eukaryotes.


Assuntos
Proteínas de Ciclo Celular , Heterocromatina , Histona-Lisina N-Metiltransferase , Histonas , Proteínas de Schizosaccharomyces pombe , Schizosaccharomyces , Proteínas de Ciclo Celular/metabolismo , Centrômero/metabolismo , Heterocromatina/metabolismo , Histona-Lisina N-Metiltransferase/metabolismo , Histonas/metabolismo , Metilação , Metiltransferases/metabolismo , RNA Longo não Codificante/metabolismo , RNA Longo não Codificante/genética , Schizosaccharomyces/metabolismo , Schizosaccharomyces/genética , Proteínas de Schizosaccharomyces pombe/metabolismo , RNA Fúngico/genética , RNA Interferente Pequeno/genética
13.
Sci Rep ; 14(1): 10665, 2024 05 09.
Artigo em Inglês | MEDLINE | ID: mdl-38724540

RESUMO

Bioaerosols generated during toilet flushing can contribute to the spread of airborne pathogens and cross-contamination in indoor environments. This presents an increased risk of fomite-mediated or aerosol disease transmission. This study systematically investigated the factors contributing to increased bioaerosol exposure following toilet flushing and developed an empirical model for predicting the exposure-relevant bioaerosol concentration. Air in a toilet cubicle was sampled by impaction after seeding with Clostridium difficile spores. Design of Experiments (DoE) main effects screening and full factorial design approaches were then employed to investigate the significant factors that heighten the risk of exposure to bioaerosols post-flush. Our findings reveal that the inoculated bacterial concentration (C), time elapsed after flushing (t), lateral distance (d), and mechanical ventilation (v) are significant predictors of bioaerosol concentration, with p-values < 0.05. The interaction term, C × d showed a marked increase in bioaerosol concentration up to 232 CFU/m3 at the closest proximity and highest pathogen load. The interplay of C and t (C × t) demonstrated a time-dependent attenuation of bioaerosol viability, with concentrations peaking at 241 CFU/m3 immediately post-flush and notably diminishing over time. The lateral distance and time post-flush (d × t) interaction also revealed a gradual decrease in bioaerosol concentration, highlighting the effectiveness of spatial and temporal dilution in mitigating bioaerosol exposure risks. Furthermore, there is an immediate rise in relative humidity levels post-flush, impacting the air quality in the toilet environment. This study not only advances our understanding of exposure pathways in determining bioaerosol exposure, but also offers pivotal insights for designing targeted interventions to reduce bioaerosol exposure. Recommendations include designing public toilets with antimicrobial surfaces, optimizing ventilation, and initiating timely disinfection protocols to prioritise surfaces closest to the toilet bowl during peak exposure periods, thereby promoting healthier indoor environments and safeguarding public health in high-traffic toilet settings.


Assuntos
Aerossóis , Microbiologia do Ar , Clostridioides difficile , Banheiros , Aerossóis/análise , Humanos , Poluição do Ar em Ambientes Fechados/análise , Aparelho Sanitário/microbiologia
14.
West Afr J Med ; 41(3): 333-341, 2024 Mar 29.
Artigo em Inglês | MEDLINE | ID: mdl-38788218

RESUMO

BACKGROUND: Accelerated orthodontic teeth movement are procedures carried out to increase the rate of tooth movement thereby reducing treatment time. There are numerous techniques currently available to accelerate orthodontic treatment time, but evidence is still needed to determine the degree to which orthodontists accept and practice accelerated orthodontics. The present study is aimed at assessing the knowledge of Orthodontists on the practice of accelerated orthodontics; as well as their willingness to adopt it as a treatment option for their patients. METHODOLOGY: Ethical approval was obtained before the commencement of the study. The study population comprised all orthodontists practicing in Nigeria. Questionnaires were administered physically to the orthodontists at their annual general meeting. E-mails were further used to distribute the questionnaire to the orthodontists who were absent from the annual meeting. The questionnaire obtained information on respondents' biodata, knowledge, attitude, and practice of accelerated orthodontic treatment procedures.Statistical analysis was performed using IBM SPSS software version 27. The level of significance was 0.05 for all statistical analysis. RESULTS: The study participants comprised 60 respondents, with a mean age of 34.18 years and a male-to-female ratio of 1.3:1. A Majority of them were satisfied with treatment time/duration (61.7%), they had a good knowledge of accelerated orthodontics (83.3%) with piezocision (75%) and micro-osteoperforation (63.3%) being the most popular. All orthodontists were interested in accelerated orthodontics, if it offered up to 30% reduction in treatment time. Major limitations to the practice included unavailability of technique materials (50%), insufficient knowledge (41.7%) and cost (35%). CONCLUSION: Most orthodontists did not routinely practice accelerated orthodontics despite adequate knowledge. They were willing to offer accelerated orthodontic treatment (AOT) if patients were willing to pay an additional fee. The less invasive methods were more accepted.


CONTEXTE: Les mouvements dentaires orthodontiques accélérés sont des procédures réalisées pour augmenter la vitesse de déplacement des dents, réduisant ainsi le temps de traitement. Il existe de nombreuses techniques actuellement disponibles pour accélérer le temps de traitement orthodontique, mais des preuves sont encore nécessaires pour déterminer dans quelle mesure les orthodontistes acceptent et pratiquent l'orthodontie accélérée. La présente étude vise à évaluer les connaissances des orthodontistes sur la pratique de l'orthodontie accélérée, ainsi que leur volonté de l'adopter comme option de traitement pour leurs patients. MÉTHODOLOGIE: L'approbation éthique a été obtenue avant le début de l'étude. La population étudiée comprenait tous les orthodontistes exerçant au Nigeria. Des questionnaires ont été administrés physiquement aux orthodontistes lors de leur assemblée générale annuelle. Des courriels ont ensuite été utilisés pour distribuer le questionnaire aux orthodontistes absents de l'assemblée annuelle. Le questionnaire a recueilli des informations sur les données biographiques des répondants, ainsi que sur leurs connaissances, attitudes et pratiques en matière de traitement orthodontique accéléré. L'analyse statistique a été réalisée à l'aide du logiciel IBM SPSS version 27. Le niveau de signification était de 0,05 pour toutes les analyses statistiques. RÉSULTATS: Les participants à l'étude étaient au nombre de 60, avec un âge moyen de 34,18 ans et un ratio hommes-femmes de 1,3:1. La majorité d'entre eux étaient satisfaits du temps/durée du traitement (61,7 %), ils avaient de bonnes connaissances en orthodontie accélérée (83,3 %) avec la piezocision (75 %) et la micro-ostéoperforation (63,3 %) étant les plus populaires. Tous les orthodontistes étaient intéressés par l'orthodontie accélérée, si elle offrait une réduction allant jusqu'à 30 % du temps de traitement. Les principales limitations à la pratique comprenaient l'indisponibilité des matériaux de technique (50 %), le manque de connaissances (41,7 %) et le coût (35 %). CONCLUSION: La plupart des orthodontistes ne pratiquaient pas systématiquement l'orthodontie accélérée malgré des connaissances adéquates. Ils étaient prêts à proposer un traitement orthodontique accéléré (TOA) si les patients étaient prêts à payer des frais supplémentaires. Les méthodes moins invasives étaient plus acceptées. MOTS-CLÉS: Orthodontie accélérée, orthodontiste, temps de traitement, piezocision.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Ortodontistas , Humanos , Masculino , Feminino , Adulto , Inquéritos e Questionários , Nigéria , Atitude do Pessoal de Saúde , Ortodontia Corretiva/métodos , Ortodontia/métodos , Padrões de Prática Odontológica/estatística & dados numéricos , Pessoa de Meia-Idade
15.
Front Chem ; 12: 1414996, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38721009

RESUMO

[This corrects the article DOI: 10.3389/fchem.2024.1358417.].

16.
J Pediatr Surg ; 59(7): 1342-1348, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38589272

RESUMO

BACKGROUND: Between 2005 and 2014, Ghana's Wilms tumor (WT) 2-year disease-free survival of 44% trailed behind that of high-income countries. This study aimed to uncover social determinants of health leading to preventable WT death in Ghana. METHODS: WT patient records (2014-2022) at Korle-Bu Teaching Hospital (KBTH; Ghana) were reviewed retrospectively. Demographics, clinical course, tumor characteristics, and survival were evaluated using t-tests, Pearson Chi-square, and multivariate Cox logistic regression. RESULTS: Of 127 patients identified, 65 were female. Median age was 44 months [IQR 25-66]. Forty-eight patients (38%) presented with distant metastasis (75% lung, 25% liver), which associated with hypoalbuminemia (p = 0.009), caregiver informal employment (p = 0.04), and larger tumors (p = 0.002). Despite neoadjuvant chemotherapy shrinking 84% of tumors, larger initial size associated with incomplete resection (p = 0.046). Of 110 nephrectomies, 31 patients had residual disease, negatively impacting survival (p = 2.7 × 10-5). Twenty-two patients (17%) abandoned treatment (45% before nephrectomy; 55% after nephrectomy), with seven patients ultimately lost to follow-up (LTFU). Decedents represented 43% of stage IV patients compared to 28% in other stages. Event-free survival (EFS) was 60% at 4 years with overall survival (OS) at 67%. CONCLUSIONS: Although Ghana's WT survival has improved, informal employment and distance from KBTH predisposed patients to delayed referral, greater tumor burden, hypoalbuminemia, and lower survival. TYPE OF STUDY: Prognosis Study. LEVEL OF EVIDENCE: II.


Assuntos
Neoplasias Renais , Nefrectomia , Tumor de Wilms , Humanos , Tumor de Wilms/terapia , Tumor de Wilms/mortalidade , Tumor de Wilms/patologia , Tumor de Wilms/cirurgia , Gana/epidemiologia , Feminino , Masculino , Estudos Retrospectivos , Pré-Escolar , Neoplasias Renais/terapia , Neoplasias Renais/patologia , Neoplasias Renais/mortalidade , Neoplasias Renais/cirurgia , Carga Tumoral , Lactente , Criança , Intervalo Livre de Doença , Determinantes Sociais da Saúde , Terapia Neoadjuvante/estatística & dados numéricos
17.
S Afr J Surg ; 62(1): 66-71, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38568129

RESUMO

BACKGROUND: Perforation of peptic ulcer (PPU) is the most morbid complication of peptic ulcer disease (PUD) with scant recent reports from sub-Saharan Africa. The aim of this study was to describe a PPU series from a single centre in South Africa and contrast the findings with other recent reports from sub-Saharan Africa. METHODS: A retrospective study of PPU at Kalafong Hospital in Pretoria was performed. The relationship of patient demographics, risk factors, ulcer pathology and severity scores to mortality were analysed. Recent similar reports from sub-Saharan Africa were reviewed and the findings compared to the current study and findings from high income countries (HIC). RESULTS: The study comprised 121 patients. The majority were black men with an average age of 46.6 years, with few comorbidities. A large proportion of patients admitted to risk factors and most presented to hospital 48 hours after the onset of symptoms. The majority (71%) of the perforations occurred in the stomach. The patient sex, age, risk factors and the mortality at 4% were similar to other African studies, although perforations were mainly duodenal in most of the African studies. The median age of patients in the East African studies was lower by 13 years. Patients in HIC series of PPU were older, more likely to be female, have duodenal perforations and a higher mortality than in the African series. CONCLUSION: Patients were mostly smokers, presented late to hospital and had gastric perforations. The findings of low mortality and male predominance concurred with those of other sub-Saharan African reports and were the opposite of trends in HIC.


Assuntos
Úlcera Péptica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , População Negra , Hospitalização , Estudos Retrospectivos , África do Sul/epidemiologia
18.
Urologiia ; (1): 5-9, 2024 Mar.
Artigo em Russo | MEDLINE | ID: mdl-38650399

RESUMO

AIM: To assess the quality of life of patients with interstitial cystitis (IC) and to study effective options used to control symptoms on outpatient basis. MATERIALS AND METHODS: The results of a descriptive prospective cross-sectional cohort study are presented. The medical charts of patients who were treated in the City Clinical Hospital named after Spasokukotsky from 2021 to 2023 were analyzed. Eighty inpatient medical charts of various patients with a final diagnosis of IC with Hunner's lesion were identified. Only 53 patients were interviewed due to the inclusion/exclusion criteria. Respondents were asked to complete a survey consisting of 15 questions. The survey was carried out online for patients who did not require surgical treatment at the time of the study, and offline for patients admitted for repeated surgical treatment. RESULTS: The average age of respondents was 59.011.1 years. 58% (31) of patients noted the presence of constant pain in the pelvic area during the day, while 85% (45) of patients reported pain outside the bladder area, in the urethra and perineum. The intensity of pain in the pelvic area was 4.9 (2.3-5.6) points. Higher pain scores 6.24 (5.8-9.0) were observed in 47% (25) of patients admitted for repeat surgical treatment. 62% (33) of patients had a titer of bacteria in a urine test above 104, while 51% (27) of patients experienced relief of symptoms after taking antibacterial drugs. For the treatment and symptomatic relief, the following are most often used: pentosan sodium polysulfate (26%, n=14), antibacterial drugs of the nitrofuran group (25%, n=13), amitriptyline (15%, n=8), non-steroidal anti-inflammatory drugs (11%, n=6) patients. 23% (12) of respondents received intravesical therapy. The time from the onset of symptoms to the final diagnosis was 48 (24-96) months. CONCLUSIONS: Although infection is a criterion for excluding the diagnosis of IC, more than 62% of patients have positive urine culture. The results obtained indicate the need to improve existing approaches to the diagnosis of IC, as well as to develop treatment algorithms for painful bladder syndrome to control symptoms.


Assuntos
Cistite Intersticial , Qualidade de Vida , Humanos , Cistite Intersticial/terapia , Cistite Intersticial/tratamento farmacológico , Pessoa de Meia-Idade , Estudos Transversais , Feminino , Masculino , Idoso , Estudos Prospectivos , Adulto , Estudos de Coortes , Assistência Ambulatorial
19.
Front Chem ; 12: 1358417, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38650673

RESUMO

Net zero targets have resulted in a drive to decarbonise the transport sector worldwide through electrification. This has, in turn, led to an exponentially growing battery market and, conversely, increasing attention on how we can reduce the environmental impact of batteries and promote a more efficient circular economy to achieve real net zero. As these batteries reach the end of their first life, challenges arise as to how to collect and process them, in order to maximise their economical use before finally being recycled. Despite the growing body of work around this topic, the decision-making process on which pathways batteries could take is not yet well understood, and clear policies and standards to support implementation of processes and infrastructure are still lacking. Requirements and challenges behind recycling and second life applications are complex and continue being defined in industry and academia. Both pathways rely on cell collection, selection and processing, and are confronted with the complexities of pack disassembly, as well as a diversity of cell chemistries, state-of-health, size, and form factor. There are several opportunities to address these barriers, such as standardisation of battery design and reviewing the criteria for a battery's end-of-life. These revisions could potentially improve the overall sustainability of batteries, but may require policies to drive such transformation across the industry. The influence of policies in triggering a pattern of behaviour that favours one pathway over another are examined and suggestions are made for policy amendments that could support a second life pipeline, while encouraging the development of an efficient recycling industry. This review explains the different pathways that end-of-life EV batteries could follow, either immediate recycling or service in one of a variety of second life applications, before eventual recycling. The challenges and barriers to each pathway are discussed, taking into account their relative environmental and economic feasibility and competing advantages and disadvantages of each. The review identifies key areas where processes need to be simplified and decision criteria clearly defined, so that optimal pathways can be rapidly determined for each end-of-life battery.

20.
Anaesthesia ; 79(8): 821-828, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38536762

RESUMO

Physical disability is a common component of post-intensive care syndrome, but the importance of musculoskeletal health in this population is currently unknown. We aimed to determine the musculoskeletal health state of intensive care unit survivors and assess its relationship with health-related quality of life; employment; and psychological and physical function. We conducted a multicentre prospective cohort study of adults admitted to intensive care for > 48 h without musculoskeletal trauma or neurological insult. Patients were followed up 6 months after admission where musculoskeletal health state was measured using the validated Musculoskeletal Health Questionnaire score. Of the 254 participants, 150 (59%) had a musculoskeletal problem and only 60 (24%) had received physiotherapy after discharge. Functional Comorbidity Index, Clinical Frailty Scale, duration of intensive care unit stay and prone positioning were all independently associated with worse musculoskeletal health. Musculoskeletal health state moderately correlated with quality of life, rs = 0.499 (95%CI 0.392-0.589); anxiety, rs = -0.433 (95%CI -0.538 to -0.315); and depression, rs = -0.537 (95%CI -0.631 to -0.434) (all p < 0.001). Patients with a musculoskeletal problem were less physically active than those without a problem (median (IQR [range]) number of 30 min physical activity sessions per week 1 (0-3.25 [0-7]) vs. 4 (1-7 [0-7]), p < 0.001, respectively). This study found that musculoskeletal health problems were common after intensive care unit stay. However, we observed that < 25% of patients received physical rehabilitation after discharge home. Our work has identified potential high-risk groups to target in future interventional studies.


Assuntos
Cuidados Críticos , Doenças Musculoesqueléticas , Qualidade de Vida , Humanos , Estudos Prospectivos , Masculino , Feminino , Pessoa de Meia-Idade , Doenças Musculoesqueléticas/psicologia , Idoso , Estudos de Coortes , Adulto , Unidades de Terapia Intensiva , Modalidades de Fisioterapia , Nível de Saúde , Estado Terminal/psicologia , Estado Terminal/reabilitação
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