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1.
Br J Ophthalmol ; 2024 Jul 13.
Artigo em Inglês | MEDLINE | ID: mdl-39002956

RESUMO

BACKGROUND: Corrective squint surgery has a significant psychological impact, affecting both the quality of life and mental health of patients. This study highlights the quantitative and subjective assessment of both the psychological and functional outcomes of squint surgery in adults having horizontal strabismus with no preoperative diplopia using a Quality-Of-Life Adult Strabismus 20 (QOL AS-20) questionnaire. METHOD: The study is a retrospective cohort study on patients with uncomplicated, horizontal squint; with no vertical deviation and was conducted as part of a departmental clinical audit. It also aimed to challenge local clinical commissioning group (CCG) funding restrictions for what they regarded as a 'cosmetic procedure'. The QOL AS-20 questionnaires were completed before and 3 months after surgery and were analysed using the paired Wilcoxon signed rank t-test which showed significant improvement. A Freedom of Information Act request sought information on strabismus surgery funding restrictions from all CCGs to explore variations in perceptions throughout England. RESULTS: 28 patients were included in the study. The overall success of squint surgery was 67.5%. The median QOL AS-20 questionnaire overall score increased from 28.125 to 88.75 (p value<0.00001), functional subscale from 46.25 to 87.5 (p value<0.00001) and psychological subscale from 15 to 90 (p value<0.00001). CONCLUSION: Squint surgery in non-diplopic adults with horizontal squint surgery should be regarded as restorative of normal anatomy from a pathological state rather than a cosmetic procedure.Restrictions to accessing this surgery may increase, especially during post-COVID-19. This patient-focused service evaluation demonstrates the substantial psychosocial benefits of such surgery, as evidenced through quality-of-life assessments.

2.
J Exerc Sci Fit ; 22(4): 316-321, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-38765321

RESUMO

Background/objective: Post-COVID-19 subjects typically experience symptoms of fatigue, cognitive impairment, and sleep difficulty, which can be relieved by conventional aerobic exercise. Virtual Reality (VR) technology to support conventional exercise has recently gained much attention. Therefore, this study aimed to assess the effects of traditional treadmill exercise compared to virtual reality-simulated treadmill exercise on fatigue, cognitive function, sleep quality, and participant satisfaction with the exercise program in post-COVID-19 subjects. Methods: This single-centered, randomized, parallel-group intervention study was conducted between December 2021 and March 2022. Sixteen of twenty post-COVID-19 subjects completed this study (n1 = 8, n2 = 8). Inclusion criteria were persistent dyspnea/fatigue, mild cognitive problems, and age from 30-60 years. Exclusion criteria were previous severe COVID-19 infection and ICU admission, concomitant respiratory or cardiovascular disease, and musculoskeletal or neurological disease. Eligible subjects were assigned randomly to two groups: a non-VR group that received traditional treadmill aerobic exercise only and a VR group that received treadmill exercise with non-immersive VR. Both groups received moderate-intensity exercise on a treadmill at [50-60 % (peak HR-resting HR) + resting HR] for 30-45 min, three times per week, and for four weeks. The outcome measures were the Chalder Fatigue Scale, Montreal Cognitive Assessment (MoCA) questionnaire, Pittsburgh Sleep Quality Index (PSQI), and participant satisfaction with the exercise program rated on a 5-point Likert scale. Results: Both groups showed significant improvements in the Chalder Fatigue Scale, the MoCA questionnaire, and the PSQI scores after training compared to baseline (p < 0.05), without significant differences between them (p > 0.05). However, participant satisfaction with the exercise program was significantly higher in the VR group than in the non-VR group (p = 0.037). Conclusion: A moderate-intensity 4-week treadmill exercise program with and without non-immersive VR may improve fatigue, cognitive function, and sleep quality to the same extent in COVID-19 survivors. However, participant satisfaction with the exercise program could be greater after conventional treadmill training assisted by non-immersive VR than after conventional treadmill training alone in this cohort. Trial registration: Pan African Clinical Trials Registry, PACTR202311561948428, retrospectively registered.

3.
ChemistryOpen ; 13(6): e202400070, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38683824

RESUMO

This study reports the design, synthesis, and antibacterial evaluation of a library of novel polyheterocyclic derivatives featuring a unique fused pyrimidopyridopyrazole moiety. A cyclocondensation reaction between an amino-pyrazolopyridopyrimidine precursor and malonates afforded a series of pyrimidopyridopyrazolopyrimidine derivatives. Further diversification was achieved through nucleophilic cyclocondensation, yielding a collection of complex polyheterocyclic systems encompassing various ring structures. All synthesized compounds were rigorously characterized using spectroscopic techniques and elemental analysis. The antibacterial activity of the newly synthesized compounds was assessed against a panel of Gram-positive and Gram-negative bacteria. Notably, several compounds exhibited promising antibacterial activity, highlighting their potential as leads for the development of novel antibiotics.


Assuntos
Antibacterianos , Desenho de Fármacos , Bactérias Gram-Negativas , Bactérias Gram-Positivas , Testes de Sensibilidade Microbiana , Pirazóis , Pirimidinas , Pirimidinas/química , Pirimidinas/farmacologia , Pirimidinas/síntese química , Bactérias Gram-Negativas/efeitos dos fármacos , Antibacterianos/farmacologia , Antibacterianos/síntese química , Antibacterianos/química , Bactérias Gram-Positivas/efeitos dos fármacos , Pirazóis/química , Pirazóis/farmacologia , Pirazóis/síntese química , Compostos Heterocíclicos/química , Compostos Heterocíclicos/farmacologia , Relação Estrutura-Atividade
4.
J Matern Fetal Neonatal Med ; 37(1): 2334846, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38584146

RESUMO

INTRODUCTION: Neural tube defects (NTDs) represent a spectrum of heterogeneous birth anomalies characterized by the incomplete closure of the neural tube. In Jordan, NTDs are estimated to occur in approximately one out of every 1000 live births. Timely identification of NTDs during the 18-22 weeks of gestation period offers parents various management options, including intrauterine NTD repair and termination of pregnancy (TOP). This study aims to assess and compare parental knowledge and perceptions of these management modalities between parents of affected children and those with healthy offspring. MATERIALS AND METHODS: This retrospective case-control study was conducted at Jordan University Hospital (JUH) using telephone-administered questionnaires. Categorical variables were summarized using counts and percentages, while continuous variables were analyzed using mean and standard deviation. The association between exposure variables and outcomes was explored using binary logistic regression. Data analysis was performed using SPSS for Windows version 26 (SPSS Inc., Chicago, IL). RESULTS: The study sample comprised 143 participants, with 49.7% being parents of children with NTDs. The majority of NTD cases were associated with unplanned pregnancies, lack of folic acid supplementation, and postnatal diagnosis. Concerning parental knowledge of TOP in Jordan, 86% believed it to be legally permissible in certain situations. However, there was no statistically significant difference between cases and controls regarding attitudes toward TOP. While the majority of parents with NTD-affected children (88.7%) expressed a willingness to consider intrauterine surgery, this percentage decreased significantly (to 77.6%) after receiving detailed information about the procedure's risks and benefits (p = .013). CONCLUSIONS: This study represents the first case-control investigational study in Jordan focusing on parental perspectives regarding TOP versus intrauterine repair of myelomeningocele following a diagnosis of an NTD-affected fetus. Based on our findings, we urge the implementation of a national and international surveillance program for NTDs, assessing the disease burden, facilitating resource allocation toward prevention strategies, and promoting early diagnosis initiatives either by using newly suggested diagnostic biomarkers or early Antenatal ultrasonography.


Assuntos
Ácido Fólico , Defeitos do Tubo Neural , Criança , Gravidez , Feminino , Humanos , Jordânia/epidemiologia , Estudos de Casos e Controles , Estudos Retrospectivos , Defeitos do Tubo Neural/diagnóstico , Defeitos do Tubo Neural/epidemiologia , Defeitos do Tubo Neural/terapia , Pais
5.
J Wound Care ; 33(Sup4a): xci-xcviii, 2024 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-38588058

RESUMO

OBJECTIVE: A diabetic foot ulcer (DFU) is a complication of type 2 diabetes that is difficult to treat. Buerger-Allen exercise has shown effectiveness in improving foot circulation and neuropathy in several studies; however, to the best of our knowledge, no randomised controlled study has investigated its effectiveness for DFU healing. Therefore, this study aimed to assess the effects of Buerger-Allen exercise on the healing of DFUs in patients with type 2 diabetes. METHOD: This is a parallel-group randomised controlled trial (RCT). Of 50 patients with neuropathic DFUs, 41 completed the study. They were assigned randomly to a study group (n=21) and a control group (n=20). Patients in the study group received the standard medical treatment and semi-supervised Buerger-Allen exercise for three sessions per week for four weeks, while patients in the control group only received the standard medical treatment. The outcome measures were: ankle-brachial pressure index (ABPI); ulcer size; ulcer depth; SINBAD score; and ulcer risk for poor outcomes (based on the SINBAD score). RESULTS: The study group's mean age was 49.48±6.45 years and the control group's mean age was 49.15±5.85. The study group's ABPI increased significantly compared to the baseline (1.17±0.04 versus 1.11±0.05, respectively; p<0.001) and the control group (1.17±0.04 versus 1.14±0.05, respectively; p=0.04) post-intervention. Ulcer size also reduced significantly in the study group compared to the baseline (2.63±2.0 versus 7.48±5.55cm2, respectively; p<0.001) and the control group (2.63±2.0 versus 6.43±4.45cm2, respectively; p<0.001) post-intervention. Ulcer depth decreased significantly in the study group compared to the baseline (1.71±1.05 versus 4.19±1.74mm, respectively; p<0.001) and the control group (1.71±1.05 versus 2.80±1.57mm, respectively; p=0.01) post-intervention. Furthermore, the SINBAD score in the study group decreased significantly compared to the baseline (1.38±0.86 versus 2.14±1.06, respectively; p<0.001) and the control group (1.38±0.86 versus 2.0±0.79, respectively; p=0.02) post-intervention. Moreover, the ulcer risk for poor outcomes, based on the SINBAD score, reduced significantly only in the study group, compared to the baseline (p=0.041). The control group showed non-significant changes compared to the baseline in all outcome measures (p>0.05). CONCLUSION: From the findings of this RCT, Buerger-Allen exercise, in combination with standard wound care, may help accelerate the healing of neuropathic DFUs in patients with type 2 diabetes, and could be suggested as part of the management plan for such conditions as an easy-to-perform offloading exercise intervention.


Assuntos
Diabetes Mellitus Tipo 2 , Pé Diabético , Humanos , Adulto , Pessoa de Meia-Idade , Pé Diabético/terapia , Pé Diabético/complicações , , Exercício Físico , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/terapia , Cicatrização
6.
J Addict Med ; 2024 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-38587298

RESUMO

OBJECTIVES: Nonmedical use (NMU) of stimulants is an increasingly common phenomenon worldwide. Motivated by enhancing academic performance, peer pressure, and seeking pleasure, students in the Middle East are thought to be a high-risk population. This is especially important in times when the political instability in the region facilitates the production and trafficking of such substances. This study aimed to unveil the burden of NMU of stimulants and examine associated correlates among senior high school and university students in Jordan. METHODS: We describe a cross-sectional study of senior high school and university students in Jordan assessing NMU of stimulants. Data were collected between January and April of 2022 through a survey, which was distributed online leading to a google forms page. The survey queried sociodemographic characteristics, history of NMU of stimulants, use of other illicit substances, attitudes toward NMU of stimulants, as well as a mental health assessment. RESULTS: A total of 8739 students completed the survey (mean age of 20.40 ± 2.45 years), of which 5.1% reported a lifetime NMU of stimulants. Fenethylline (Captagon) was the most widely reported stimulant (2.6%). Living in the southern region, being diagnosed with a personality disorder, and using concomitant illicit substances were associated with the NMU of stimulants. CONCLUSIONS: The NMU of CNS stimulants, especially fenethylline, is prevalent in Jordan. More surveillance ought to be heeded toward the southern borders of Jordan. Students who use stimulants for academic reasons must be made aware of the potential consequences of the NMU of stimulants.

7.
PLoS One ; 19(2): e0297376, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38422065

RESUMO

Developing novel EV chargers is crucial for accelerating Electric Vehicle (EV) adoption, mitigating range anxiety, and fostering technological advancements that enhance charging efficiency and grid integration. These advancements address current challenges and contribute to a more sustainable and convenient future of electric mobility. This paper explores the performance dynamics of a solar-integrated charging system. It outlines a simulation study on harnessing solar energy as the primary Direct Current (DC) EV charging source. The approach incorporates an Energy Storage System (ESS) to address solar intermittencies and mitigate photovoltaic (PV) mismatch losses. Executed through MATLAB, the system integrates key components, including solar PV panels, the ESS, a DC charger, and an EV battery. The study finds that a change in solar irradiance from 400 W/m2 to 1000 W/m2 resulted in a substantial 47% increase in the output power of the solar PV system. Simultaneously, the ESS shows a 38% boost in output power under similar conditions, with the assessments conducted at a room temperature of 25°C. The results emphasize that optimal solar panel placement with higher irradiance levels is essential to leverage integrated solar energy EV chargers. The research also illuminates the positive correlation between elevated irradiance levels and the EV battery's State of Charge (SOC). This correlation underscores the efficiency gains achievable through enhanced solar power absorption, facilitating more effective and expedited EV charging.


Assuntos
Energia Solar , Humanos , Ansiedade , Transtornos de Ansiedade , Simulação por Computador , Sistemas Computacionais
8.
Arch Phys Med Rehabil ; 105(6): 1050-1057, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38367831

RESUMO

OBJECTIVE: To assess whether adding bedside cycling to inpatient cardiac rehabilitation (CR) early after heart valve surgery could lead to better physical function and shorter length of hospital stays. DESIGN: This is a single-centered, randomized, controlled, parallel-group intervention study. SETTINGS: This study was conducted at the National Heart Institute from December 2022 to June 2023. PARTICIPANTS: Thirty-one patients following heart valve surgery completed this study after being randomized into 2 groups: an intervention group (n1=16) and an active control group (n2=15). Eligibility criteria were heart valve surgery with median sternotomy, clinical stability, and age from 20 to 40 years. INTERVENTIONS: The intervention group received early bedside cycling for the lower limbs, using a mini bike, in addition to an inpatient CR program, and the control group received the inpatient CR program alone. MAIN OUTCOME MEASURE: The primary outcome was the physical functional capacity assessed by the 6-minute walk distance (6MWD). The secondary outcomes were the Barthel Index (BI), the forced vital capacity (FVC), the length of intensive care unit (ICU) stay, the total length of hospital stay, and the physical component summary (PCS) of the 12-item Short Form (SF-12) Health Survey. RESULTS: Compared with the control group, the intervention group showed significantly greater 6MWD (P<.001), BI score (P<.001), and FVC (P=.006) at hospital discharge, and shorter ICU stay (P=.002) and total hospital stay (P=.015). At 1-month follow-up, the intervention group showed a non-significantly higher PCS mean score than the control group (P=.057). CONCLUSION: Adding early bedside cycling to a usual inpatient CR program after heart valve surgery could induce significantly greater short-term physical functional capacity as assessed by the 6MWD, better activities of daily living as evaluated by the BI, higher pulmonary function as measured by the FVC, and shorter lengths of ICU and total hospital stays than the usual inpatient CR program alone.


Assuntos
Ciclismo , Reabilitação Cardíaca , Tempo de Internação , Humanos , Masculino , Tempo de Internação/estatística & dados numéricos , Feminino , Reabilitação Cardíaca/métodos , Adulto , Terapia por Exercício/métodos , Teste de Caminhada , Valvas Cardíacas/cirurgia , Procedimentos Cirúrgicos Cardíacos/reabilitação , Pacientes Internados
9.
Gels ; 10(2)2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38391443

RESUMO

This study describes the development of a fast and cost-effective method for the detection and removal of Hg2+ ions from aqueous media, consisting of hydrogels incorporating chelating agents and a rhodamine derivative (to afford a qualitative evaluation of the heavy metal entrapment inside the 3D polymeric matrix). These hydrogels, designed for the simultaneous detection and entrapment of mercury, were obtained through the photopolymerization of 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPSA) and N-vinyl-2-pyrrolidone (NVP), utilizing N,N'-methylenebisacrylamide (MBA) as crosslinker, in the presence of polyvinyl alcohol (PVA), a rhodamine B derivative, and one of the following chelating agents: phytic acid, 1,3-diamino-2-hydroxypropane-tetraacetic acid, triethylenetetramine-hexaacetic acid, or ethylenediaminetetraacetic acid disodium salt. The rhodamine derivative had a dual purpose in this study: firstly, it was incorporated into the hydrogel to allow the qualitative evaluation of mercury entrapment through its fluorogenic switch-off abilities when sensing Hg2+ ions; secondly, it was used to quantitatively evaluate the level of residual mercury from the decontaminated aqueous solutions, via the UV-Vis technique. The ICP-MS analysis of the hydrogels also confirmed the successful entrapment of mercury inside the hydrogels and a good correlation with the UV-Vis method.

10.
Artigo em Inglês | MEDLINE | ID: mdl-37916638

RESUMO

The neonatal microbiome includes all the microorganisms living within or on the surface of the newborn, as well as their genes (i.e., bacteria, fungi, and viruses), which are composed mainly of bacteria. The majority of these microorganisms reside in the gastrointestinal tract (GIT), which is known as the gut microbiome. They include trillions of microbes, which exceed the total number of neonate cells. In this study, we have examined factors affecting neonatal microbiome colonization, various phyla of the microbiome in neonates, and their characteristics. In addition, we have discussed symbiosis and dysbiosis, precipitating diseases, breast milk's role in the neonatal gut microbiome, prebiotics, probiotics, postbiotics, and synbiotics, as well as the airway or respiratory microbiome, and the main role of the neonatal microbiome. We have also discussed neonatal mycobiome and neonatal virome, as well as the research done on the neonatal microbiome.


Assuntos
Microbioma Gastrointestinal , Microbiota , Probióticos , Simbióticos , Humanos , Recém-Nascido , Feminino , Probióticos/uso terapêutico , Prebióticos
11.
Clin Ophthalmol ; 17: 3719-3728, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38084208

RESUMO

Objective: Silicone oils have the role in maintaining the attachment of the retina in conditions where the risk of retinal re-detachment is high. However, silicone oils have the tendency to emulsify with subsequent complications. In this work, analyses have been performed to understand changes that occurred to the optical, and physical characteristics of the oil after removal from the vitreous cavity of patients underwent pars plana vitrectomy (PPV) for fibrovascular membranes/tractional retinal detachment (FVM/TRD). Methods: Four samples of silicone oil were allocated from patients who underwent PPV for FVM/TRD. The Fourier-transform infrared (FTIR) spectroscopy, micro-viscometry, and ultraviolet-visible spectrometer analyses were utilized to determine the changes in its chemical bondings, viscosity, absorbance, transmittance, buoyance, and specific gravity. Results: The mean age of the patients was 49.0 years. The mean duration of silicone oil implantation was 18.9 months. FTIR analysis showed significant breaking in the chemical bonding that was related to the lens status during the primary PPV, the presence of significant retinal hemorrhages, the duration of silicone oil implantation, and the degree of silicone oil filling. Similarly, viscosity and contact angle analyses revealed a reduction in the viscosity with similar factors to the FTIR analysis. Moreover, absorbance and transmittance were largely affected by the aggressiveness of FVM/TRD. Conclusion: This study revealed that certain factors such as the age of the patient, duration of silicone oil implantation, lens status, and the presence of retinal hemorrhages, the degree of silicone oil filling and aggressiveness of FVM/TRD may contribute to the emulsification process.

12.
Nat Commun ; 14(1): 8227, 2023 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-38086807

RESUMO

Centromeres are epigenetically defined via the presence of the histone H3 variant CENP-A. Contacting CENP-A nucleosomes, the constitutive centromere associated network (CCAN) and the kinetochore assemble, connecting the centromere to spindle microtubules during cell division. The DNA-binding centromeric protein CENP-B is involved in maintaining centromere stability and, together with CENP-A, shapes the centromeric chromatin state. The nanoscale organization of centromeric chromatin is not well understood. Here, we use single-molecule fluorescence and cryoelectron microscopy (cryoEM) to show that CENP-A incorporation establishes a dynamic and open chromatin state. The increased dynamics of CENP-A chromatin create an opening for CENP-B DNA access. In turn, bound CENP-B further opens the chromatin fiber structure and induces nucleosomal DNA unwrapping. Finally, removal of CENP-A increases CENP-B mobility in cells. Together, our studies show that the two centromere-specific proteins collaborate to reshape chromatin structure, enabling the binding of centromeric factors and establishing a centromeric chromatin state.


Assuntos
Cromatina , Proteínas Cromossômicas não Histona , Proteína Centromérica A/metabolismo , Microscopia Crioeletrônica , Proteínas Cromossômicas não Histona/metabolismo , Centrômero/metabolismo , Nucleossomos , DNA/metabolismo , Autoantígenos/metabolismo
14.
Heliyon ; 9(12): e22825, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38125542

RESUMO

In this paper, the Gaussian optical properties and the first- and third-order isotropic and anisotropic chromatic aberrations of the Glaser magnetic lens have been derived analytically and then calculated numerically based on two methods: the differential-algebraic DA and the electron optical aberration integrals. These coefficients have been recalculated for object magnetic immersion OMI. The expressions of chromatic aberration coefficients with the inclusion of the OMI effect of round electron lenses were not published in the literature until the present work. The numerical results of high-order chromatic aberration coefficients of Glaser magnetic lenses calculated using the DA method are shown to be in excellent agreement with those calculated using the integral aberration method and with the minor relative errors of order (10-7- 10-8), indicating that all the formulas for the chromatic aberration coefficients are entirely correct. For this purpose, COSY INFINITY 10 and Mathematica 11 were used, and both proved to be excellent computer programs for this work.

15.
Daru ; 2023 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-37966585

RESUMO

BACKGROUND: Dexamethasone-induced neurotoxicity has been previously reported. However, the molecular mechanisms are still not completely understood. OBJECTIVES: The current work aimed to investigate the modulatory effects of α- and ß-adrenergic receptors on dexamethasone-induced neurotoxicity in rats focused on changes in ß-arrestin2 and molecular markers of neural injury in cerebral cortex. METHODS: Male Wistar rats were subcutaneously injected with dexamethasone (10 mg/kg/day) for 7 days to induce neural injury in the cerebral cortex. The experiment involved 5 groups: control, dexamethasone, carvedilol, propranolol, and doxazosin. In the last 3 groups, drugs were given 2 hours before dexamethasone injection. At the end of experiment, brain samples were collected for measurement of brain derived neurotrophic factor (BDNF), glial fibrillary acidic protein (GFAP), kinase activity of protein kinase B (Akt), diacylglycerol (DAG), α-smooth muscle actin (α-SMA), Smad3, ß-amyloid and phospho-tau protein levels in addition to histopathological examination of brain tissue using hematoxylin-eosin, Nissl, and Sirius red stains. Moreover, ß-arrestin2 levels in the cerebral cortex were measured using immunohistochemical examination. RESULTS: Dexamethasone slightly reduced brain weight and significantly decreased BDNF, Akt kinase activity and ß-arrestin2 but markedly induced degeneration of cortical neurons and significantly increased GFAP, DAG, α-SMA, Smad3, ß-amyloid and phospho-tau protein levels compared to controls. Carvedilol, propranolol, and doxazosin reversed all dexamethasone-induced molecular changes and slightly ameliorated the histopathological changes. Carvedilol significantly increased brain weight and ß-arrestin2 levels compared to dexamethasone, propranolol, and doxazosin groups. CONCLUSION: blocking α- and/or ß-adrenergic receptors alleviate dexamethasone-induced neurotoxicity despite their distinct effects on ß-arrestin2 levels in the cerebral cortex.

16.
J Exerc Sci Fit ; 21(4): 395-404, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37954548

RESUMO

Background/objective: Comparison between different training volumes of high-intensity interval training (HIIT) is understudied in type 2 diabetes. This study aimed to compare the effects of low- and high-volume HIIT on glycemic control, blood lipids, blood pressure, anthropometric adiposity measures, cardiorespiratory fitness, and health-related quality of life (HRQoL) in women with type 2 diabetes. Methods: Seventy-two obese women with type 2 diabetes aged 36-55 were randomly assigned to a low-volume HIIT group (i.e., 2 × 4-min high-intensity treadmill exercise at 85%-90% of peak heart rate, with a 3-min active recovery interval in between), a high-volume HIIT group (i.e., 4 × 4-min high-intensity treadmill exercise at 85%-90% of peak heart rate, with three 3-min active recovery intervals in between), and a non-exercising control group. Patients in HIIT groups exercised three days a week for 12 weeks. All patients received oral hypoglycemic medications with no calorie restrictions. The outcome measures were glycosylated hemoglobin (HbA1c), fasting blood glucose (FBG), 2-hour postprandial blood glucose (2-hr PPBG), total cholesterol (TC), triglyceride (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL), systolic blood pressure (SBP), diastolic blood pressure (DBP), body mass index (BMI), waist circumference (WC), waist-to-hip ratio, time to maximal exhaustion determined from a maximal treadmill exercise test (i.e., a measure of cardiorespiratory fitness), and HRQoL assessed by the 12-item Short Form (SF-12) Health Survey. Results: The low- and high-volume HIIT groups showed significant improvements in all outcome measures compared to the baseline and the non-exercising group (P < 0.05), except for DBP in the low-volume HIIT group (p > 0.05). Also, both low- and high-volume HIIT groups showed similar improvements in TC, HDL, SBP, DBP, BMI, WC, waist-to-hip ratio, and the SF-12 scores, with no significant between-groups difference (p > 0.05). The high-volume HIIT group, however, showed more significant improvements in HbA1c, FBG, 2-hr PPBG, TG, LDL, and treadmill time to maximal exhaustion than the low-volume HIIT group (p < 0.05). The non-exercising group showed non-significant changes in all outcome measures (p > 0.05). Conclusion: Low-volume HIIT could be equally effective as high-volume HIIT for improving TC, HDL, blood pressure, anthropometric adiposity measures, and HRQoL in obese women with type 2 diabetes. Nevertheless, high-volume HIIT could have a greater impact on glycemic control, TG, LDL, and cardiorespiratory fitness in these patients. Trial registration: ClinicalTrials.gov, NCT05110404.

17.
Complement Ther Clin Pract ; 53: 101795, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37659172

RESUMO

PURPOSE: This study aimed to compare the effects of aerobic, resistance, and combined exercises on thyroid function, lipid profile, exercise capacity, and quality of life (QoL) in hypothyroid women. METHODS: Sixty women aged 35 to 45 with clinical hypothyroidism were randomized to four equal groups: aerobic training (AT), resistance training (RT), combined AT/RT, and control groups. All exercises were performed at low to moderate intensity, three days per week, and for 12 weeks. Patients in all groups were on levothyroxine therapy. Outcome measures were free thyroxin (T4), thyroid stimulating hormone (TSH), lipid profile, estimated maximal oxygen consumption (VO2 max) and QoL assessed by the 12-item Short Form (SF-12) Health Survey. RESULTS: All exercise groups showed significant improvements in all outcome measures compared to the baseline and the controls (p < 0.05). The combined AT/RT group showed more significant improvements in TSH and the mental component summary score of the SF-12 compared to the AT and RT groups (p < 0.05). The AT group showed the most significant improvement in estimated VO2 max, followed by the combined AT/RT and then the RT group. Non-significant differences were found between exercise groups in T4, blood lipids, and the physical component summary score of the SF-12 (p > 0.05). CONCLUSION: In women with hypothyroidism on levothyroxine treatment, all AT, RT, and combined AT/RT could equally improve T4 levels, lipid profile, and physical health-related QoL. However, the combined AT/RT could induce the greatest improvements in TSH and mental health-related QoL, while the AT could have the greatest impact on exercise capacity in these patients. TRIAL REGISTRATION: Pan African Clinical Trial Registry (PACTR), retrospective, PACTR202305810673587.


Assuntos
Hipotireoidismo , Qualidade de Vida , Humanos , Feminino , Tiroxina/uso terapêutico , Estudos Retrospectivos , Hipotireoidismo/tratamento farmacológico , Tireotropina , Lipídeos
18.
Crit Rev Anal Chem ; : 1-18, 2023 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-37728973

RESUMO

Pesticides have an important role in rising the overall productivity and yield of agricultural foods by eliminating and controlling insects, pests, fungi, and various plant-related illnesses. However, the overuse of pesticides has caused pesticide pollution of water bodies and food products, along with disruption of environmental and ecological systems. In this regard, developing low-cost, simple, and rapid-detecting approaches for the accurate, rapid, efficient, and on-site screening of pesticide residues is an ongoing challenge. Electrochemiluminescence (ECL) possesses the benefits of great sensitivity, the capability to resolve several analytes using different emission wavelengths or redox potentials, and excellent control over the light radiation in time and space, making it a powerful strategy for sensing various pesticides. Cost-effective and simple ECL systems allow sensitive, selective, and accurate quantification of pesticides in agricultural fields. Particularly, the development and progress of nanomaterials, aptamer/antibody recognition, electric/photo-sensing, and their integration with electrochemiluminescence sensing technology has presented the hopeful potential in reporting the residual amounts of pesticides. Current trends in the application of nanoparticles are debated, with an emphasis on sensor substrates using aptamer, antibodies, enzymes, and molecularly imprinted polymers (MIPs). Different strategies are enclosed in labeled and label-free sensing along with luminescence determination approaches (signal-off, signal-on, and signal-switch modes). Finally, the recent challenges and upcoming prospects in this ground are also put forward.

19.
Hong Kong Physiother J ; 43(1): 19-31, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37584047

RESUMO

Background: Patients hospitalised for acute decompensated heart failure (ADHF) show reduced functional capacity, limited activities of daily living (ADL), and elevated N-terminal prohormone of brain natriuretic peptide (NT-proBNP). The management of these patients focuses mainly on medical therapy with little consideration for in-patient cardiac rehabilitation. There has been a growing interest in evaluating the efficacy of early mobilisation, as the core for in-hospital rehabilitation, in ADHF patients in the last decade; however, the randomised trials on this topic are few. Objective: This randomised-controlled study, therefore, aimed to further test the hypothesis that early supervised mobilisation would have beneficial effects on functional capacity, ADL, and NT-proBNP in stabilised patients following ADHF. Methods: This is a single-centered, randomised-controlled, parallel-group trial in which 30 patients hospitalised for ADHF were randomly assigned to two groups; the study group (age=55.4±5.46 years, n1=15) and the control group (age=55.73±5.61 years, n2=15). Inclusion criteria were ADHF on top of chronic heart failure independent of etiology or ejection fraction, clinical/hemodynamic stability, age from 40 to 60 years old, and both genders. Exclusion criteria were cardiogenic shock, acute coronary ischemia, or significant arrhythmia. Both groups received the usual medical care, but only the study group received an early structured mobilisation protocol within 3 days of hospital admission till discharge. The outcome measures were the 6-min walk distance (6-MWD) and the rating of perceived exertion (RPE) determined from the 6-min walk test at discharge, the Barthel index (BI), NT-proBNP, and the length of hospital stays (LOS). Results: The study group showed significantly greater improvements compared to the controls in the 6-MWD (252.28±92.32 versus 106.35±56.36 m, P<0.001), the RPE (12.53±0.91 versus 15.4±1.63, P<0.001), and the LOS (10.42±4.23 versus 16.85±6.87 days, p=0.009) at discharge. Also, the study group showed significant improvements in the BI compared to baseline [100 (100-100) versus 41.87 (35-55), p=0.009] and the controls [100 (100-100) versus 92.5(85-95), p=0.006]. The mean value of NT-proBNP showed a significant reduction only compared to baseline (786.28±269.5 versus 1069.03±528.87 pg/mL, p=0.04) following the intervention. The absolute mean change (Δ) of NT-proBNP showed an observed difference between groups in favor of the study group (i.e., Δ=↓282.75±494.13 pg/mL in the study group versus ↓26.42±222.21 pg/mL in the control group, p=0.077). Conclusion: Early structured mobilisation under the supervision of a physiotherapist could be strongly suggested in combination with the usual medical care to help improve the functional capacity and daily living activities, reduce NT-proBNP levels, and shorten the hospital stay in stabilised patients following ADHF. Trial registration number: PACTR202202476383975.

20.
RMD Open ; 9(3)2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37562857

RESUMO

Polymorphonuclear neutrophils (PMN) represent one of the first lines of defence against invading pathogens and are the most abundant leucocytes in the circulation. Generally described as pro-inflammatory cells, recent data suggest that PMN also have immunomodulatory capacities. In response to certain stimuli, activated PMN expel neutrophil extracellular traps (NET), structures made of DNA and associated proteins. Although originally described as an innate immune mechanism fighting bacterial infection, NET formation (or probably rather an excess of NET together with impaired clearance of NET) may be deleterious. Indeed, NET have been implicated in the development of several inflammatory and autoimmune diseases as rheumatoid arthritis or systemic lupus erythematosus, as well as fibrosis or cancer. They have been suggested as a source of (neo)autoantigens or regulatory proteins like proteases or to act as a physical barrier. Different mechanisms of NET formation have been described, leading to PMN death or not, depending on the stimulus. Interestingly, NET may be both pro-inflammatory and anti-inflammatory and this probably partly depends on the mechanism, and thus the stimuli, triggering NET formation. Within this review, we will describe the pro-inflammatory and anti-inflammatory activities of NET and especially how NET may modulate immune responses.


Assuntos
Anti-Infecciosos , Doenças Autoimunes , Armadilhas Extracelulares , Lúpus Eritematoso Sistêmico , Humanos , Neutrófilos/metabolismo , Lúpus Eritematoso Sistêmico/metabolismo , Anti-Infecciosos/metabolismo
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