Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 99
Filtrar
1.
Clin Infect Dis ; 76(6): 1059-1066, 2023 03 21.
Artigo em Inglês | MEDLINE | ID: mdl-36310531

RESUMO

BACKGROUND: Early and accurate recognition of respiratory pathogens is crucial to prevent increased risk of mortality in critically ill patients. Microbial-derived volatile organic compounds (mVOCs) in exhaled breath could be used as noninvasive biomarkers of infection to support clinical diagnosis. METHODS: In this study, we investigated the diagnostic potential of in vitro-confirmed mVOCs in the exhaled breath of patients under mechanical ventilation from the BreathDx study. Samples were analyzed by thermal desorption-gas chromatography-mass spectrometry. RESULTS: Pathogens from bronchoalveolar lavage (BAL) cultures were identified in 45 of 89 patients and Staphylococcus aureus was the most commonly identified pathogen (n = 15). Of 19 mVOCs detected in the in vitro culture headspace of 4 common respiratory pathogens (S. aureus, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Escherichia coli), 14 were found in exhaled breath samples. Higher concentrations of 2 mVOCs were found in the exhaled breath of patients infected with S. aureus compared to those without (3-methylbutanal: P < .01, area under the receiver operating characteristic curve [AUROC] = 0.81-0.87; and 3-methylbutanoic acid: P = .01, AUROC = 0.79-0.80). In addition, bacteria identified from BAL cultures that are known to metabolize tryptophan (E. coli, Klebsiella oxytoca, and Haemophilus influenzae) were grouped and found to produce higher concentrations of indole compared to breath samples with culture-negative (P = .034) and other pathogen-positive (P = .049) samples. CONCLUSIONS: This study demonstrates the capability of using mVOCs to detect the presence of specific pathogen groups with potential to support clinical diagnosis. Although not all mVOCs were found in patient samples within this small pilot study, further targeted and qualitative investigation is warranted using multicenter clinical studies.


Assuntos
Pneumonia , Infecções Estafilocócicas , Compostos Orgânicos Voláteis , Humanos , Respiração Artificial , Staphylococcus aureus , Escherichia coli , Projetos Piloto , Pulmão , Bactérias , Infecções Estafilocócicas/diagnóstico , Compostos Orgânicos Voláteis/análise , Biomarcadores/análise
2.
Crit Care ; 26(1): 203, 2022 07 06.
Artigo em Inglês | MEDLINE | ID: mdl-35794610

RESUMO

BACKGROUND: Ventilator-associated pneumonia (VAP) is associated with high morbidity and health care costs, yet diagnosis remains a challenge. Analysis of airway microbiota by amplicon sequencing provides a possible solution, as pneumonia is characterised by a disruption of the microbiome. However, studies evaluating the diagnostic capabilities of microbiome analysis are limited, with a lack of alignment on possible biomarkers. Using bronchoalveolar lavage fluid (BALF) from ventilated adult patients suspected of VAP, we aimed to explore how key characteristics of the microbiome differ between patients with positive and negative BALF cultures and whether any differences could have a clinically relevant role. METHODS: BALF from patients suspected of VAP was analysed using 16s rRNA sequencing in order to: (1) differentiate between patients with and without a positive culture; (2) determine if there was any association between microbiome diversity and local inflammatory response; and (3) correctly identify pathogens detected by conventional culture. RESULTS: Thirty-seven of 90 ICU patients with suspected VAP had positive cultures. Patients with a positive culture had significant microbiome dysbiosis with reduced alpha diversity. However, gross compositional variance was not strongly associated with culture positivity (AUROCC range 0.66-0.71). Patients with a positive culture had a significantly higher relative abundance of pathogenic bacteria compared to those without [0.45 (IQR 0.10-0.84), 0.02 (IQR 0.004-0.09), respectively], and an increased interleukin (IL)-1ß was associated with reduced species evenness (rs = - 0.33, p < 0.01) and increased pathogenic bacteria presence (rs = 0.28, p = 0.013). Untargeted 16s rRNA pathogen detection was limited by false positives, while the use of pathogen-specific relative abundance thresholds showed better diagnostic accuracy (AUROCC range 0.89-0.998). CONCLUSION: Patients with positive BALF culture had increased dysbiosis and genus dominance. An increased caspase-1-dependent IL-1b expression was associated with a reduced species evenness and increased pathogenic bacterial presence, providing a possible causal link between microbiome dysbiosis and lung injury development in VAP. However, measures of diversity were an unreliable predictor of culture positivity and 16s sequencing used agnostically could not usefully identify pathogens; this could be overcome if pathogen-specific relative abundance thresholds are used.


Assuntos
Pulmão , Microbiota , Pneumonia Associada à Ventilação Mecânica , Adulto , Bactérias , Disbiose , Humanos , Pulmão/microbiologia , Pneumonia Associada à Ventilação Mecânica/diagnóstico , Pneumonia Associada à Ventilação Mecânica/microbiologia , RNA Ribossômico 16S/genética
3.
J Appl Microbiol ; 133(4): 2445-2456, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35835588

RESUMO

AIMS: This study sought to assess the volatile organic compound (VOC) profiles of ampicillin-resistant and -susceptible Escherichia coli to evaluate whether VOC analysis may be utilized to identify resistant phenotypes. METHODS AND RESULTS: An E. coli BL21 (DE3) strain and its pET16b plasmid transformed ampicillin-resistant counterpart were cultured for 6 h in drug-free, low- and high-concentrations of ampicillin. Headspace analysis was undertaken using thermal desorption-gas chromatography-mass spectrometry. Results revealed distinct VOC profiles with ampicillin-resistant bacteria distinguishable from their susceptible counterparts using as few as six compounds. A minimum of 30 compounds (fold change >2, p ≤ 0.05) were differentially expressed between the strains across all set-ups. Furthermore, three compounds (indole, acetoin and 3-methyl-1-butanol) were observed to be significantly more abundant (fold change >2, p ≤ 0.05) in the resistant strain compared to the susceptible strain both in the presence and in the absence of drug stress. CONCLUSIONS: Results indicate that E. coli with acquired ampicillin resistance exhibit an altered VOC profile compared to their susceptible counterpart both in the presence and in the absence of antibiotic stress. This suggests that there are fundamental differences between the metabolisms of ampicillin-resistant and -susceptible E. coli which may be detected by means of VOC analysis. SIGNIFICANCE AND IMPACT OF THE STUDY: Our findings suggest that VOC profiles may be utilized to differentiate between resistant and susceptible bacteria using just six compounds. Consequently, the development of machine-learning models using VOC signatures shows considerable diagnostic applicability for the rapid and accurate detection of antimicrobial resistance.


Assuntos
Infecções por Escherichia coli , Compostos Orgânicos Voláteis , Acetoína , Ampicilina/farmacologia , Resistência a Ampicilina/genética , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Bactérias , Escherichia coli/genética , Infecções por Escherichia coli/microbiologia , Humanos , Indóis , Testes de Sensibilidade Microbiana , Compostos Orgânicos Voláteis/análise
4.
Eur Respir J ; 55(2)2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31515400

RESUMO

INTRODUCTION: Asthma is a heterogeneous condition, characterised by chronic inflammation of the airways, typically managed with inhaled bronchodilators and corticosteroids. In the case of uncontrolled asthma, oral corticosteroids (OCSs) are often prescribed. Good adherence and inhalation technique are associated with improved outcomes; however, it is difficult to monitor appropriate drug intake and effectiveness in individual patients. Exhaled breath contains thousands of volatile organic compounds (VOCs) that reflect changes in the body's chemistry and may be useful for monitoring drug pharmacokinetics/pharmacodynamics. We aimed to investigate the association of exhaled VOCs in severe asthma patients from the U-BIOPRED cohort (by gas chromatography coupled with time-of-flight mass spectrometry) with urinary levels of salbutamol and OCSs (by liquid chromatography coupled with high-resolution mass spectrometry). METHODS: Samples were collected at baseline and after 12-18 months of follow-up. Statistical analysis was based on univariate and multivariate modelling, followed by area under the receiver operating characteristic curve (AUC) calculation. Results were verified through longitudinal replication and independent validation. RESULTS: Data were available for 78 patients (baseline n=48, replication n=30 and validation n=30). Baseline AUC values were 82.1% (95% CI 70.4-93.9%) for salbutamol and 78.8% (95% CI 65.8-91.8%) for OCS. These outcomes could be adequately replicated and validated. Additional regression analysis between qualified exhaled VOCs and urinary concentrations of salbutamol and prednisone showed statistically significant correlations (p<0.01). CONCLUSION: We have linked exhaled VOCs to urinary detection of salbutamol and OCSs. This merits further development of breathomics into a point-of-care tool for therapeutic drug monitoring.


Assuntos
Asma , Compostos Orgânicos Voláteis , Asma/diagnóstico , Asma/tratamento farmacológico , Testes Respiratórios , Expiração , Cromatografia Gasosa-Espectrometria de Massas , Humanos , Compostos Orgânicos Voláteis/análise
6.
Analyst ; 143(17): 4155-4162, 2018 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-30069568

RESUMO

Pulmonary aspergillosis can cause serious complications in people with a suppressed immune system. Volatile metabolites emitted by Aspergillus spp. have shown promise for early detection of pathogenicity. However, volatile profiles require further research, as effective headspace analysis methods are required for extended chemical coverage of the volatome; in terms of both very volatile and semi-volatile compounds. In this study, we describe a novel adaptable sampling method in which fungal headspace samples can be sampled continuously throughout a defined time period using both active (pumped) and passive (diffusive) methods, with the capability for samples to be stored for later off-line analysis. For this method we utilise thermal desorption-gas chromatography-mass spectrometry to generate volatile metabolic profiles using Aspergillus fumigatus as the model organism. Several known fungal-specific volatiles associated with secondary metabolite biosynthesis (including α-pinene, camphene, limonene, and several sesquiterpenes) were identified. A comparison between the wild-type A. fumigatus with a phosphopantetheinyl transferase null mutant strain (ΔpptA) that is compromised in secondary metabolite synthesis, revealed reduced production of sesquiterpenes. We also showed the lack of terpene compounds production during the early growth phase, whilst pyrazines were identified in both early and late growth phases. We have demonstrated that the fungal volatome is dynamic and it is therefore critically necessary to sample the headspace across several time periods using a combination of active and passive sampling techniques to analyse and understand this dynamism.


Assuntos
Aspergillus fumigatus/metabolismo , Metabolômica/métodos , Compostos Orgânicos Voláteis/análise , Cromatografia Gasosa-Espectrometria de Massas
7.
J Sports Sci ; 35(15): 1533-1537, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27607302

RESUMO

This study sought to compare the kinetics and kinematics data in a group of habitual shod runners when running in traditional running shoes and newly designed minimalist shoes with lug platform. This novel footwear design claims to simulate barefoot running and reduce energy loss during impact. We compared footstrike angle (FSA), vertical average (VALR) and instantaneous (VILR) loading rates, energy loss and initial vertical stiffness between two shoe conditions. Runners demonstrated a decreased FSA while running in minimalist shoes with lug platform than traditional shoes (P = 0.003; Cohen's d = 0.918). However, we did not observe a landing pattern transition. VALR and VILR between two footwear conditions showed no significant difference (P = 0.191-0.258; Cohen's d = 0.304-0.460). Initial vertical stiffness (P = 0.032; Cohen's d = 0.671) and energy loss (P = 0.044; Cohen's d = 0.578) were greater when running in minimalist shoes with lug platform. The results show that minimalist shoes with lug platform reduce the FSA but may not lead to a landing pattern switch or lower vertical loading rates. Interestingly, the new shoe design leads to a greater energy loss than traditional running shoes, which could be explained by a higher initial vertical stiffness.


Assuntos
Marcha/fisiologia , Corrida/fisiologia , Sapatos , Fenômenos Biomecânicos , Metabolismo Energético/fisiologia , Desenho de Equipamento , Feminino , Pé/fisiologia , Humanos , Masculino , Adulto Jovem
8.
Front Public Health ; 12: 1364660, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38887241

RESUMO

Healthcare is experiencing a transformative phase, with artificial intelligence (AI) and machine learning (ML). Physical therapists (PTs) stand on the brink of a paradigm shift in education, practice, and research. Rather than visualizing AI as a threat, it presents an opportunity to revolutionize. This paper examines how large language models (LLMs), such as ChatGPT and BioMedLM, driven by deep ML can offer human-like performance but face challenges in accuracy due to vast data in PT and rehabilitation practice. PTs can benefit by developing and training an LLM specifically for streamlining administrative tasks, connecting globally, and customizing treatments using LLMs. However, human touch and creativity remain invaluable. This paper urges PTs to engage in learning and shaping AI models by highlighting the need for ethical use and human supervision to address potential biases. Embracing AI as a contributor, and not just a user, is crucial by integrating AI, fostering collaboration for a future in which AI enriches the PT field provided data accuracy, and the challenges associated with feeding the AI model are sensitively addressed.


Assuntos
Inteligência Artificial , Humanos , Aprendizado de Máquina , Fisioterapeutas , Modalidades de Fisioterapia
9.
Cureus ; 16(3): e56724, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38646260

RESUMO

Virtual reality (VR) has advanced in medical education and rehabilitation from basic graphical applications due to its ability to generate a virtual three-dimensional (3D) environment. This environment is mostly used to practice professional skills, plan surgery procedures, simulate surgeries, display 3D anatomy, and rehabilitate various disorders. VR has transformed the field of rehabilitation therapy by providing immersive and engaging experiences that go beyond traditional bounds, significantly improving patient care and therapeutic results. Considering the direct impact of VR on the efficacy of the treatment for both therapists and patients, its dual significance for usability and user experience cannot be overstated. The purpose of this article is to determine the synergistic association between VR accessibility and the rehabilitation process, highlighting the significance of VR technology in designing the future of rehabilitation therapy and demonstrating how advancing VR technology can improve therapeutic outcomes despite overcoming obstacles encountered during VR usage. In conclusion, VR offers a personalized, efficient, interesting, and engaging rehabilitative environment for patients, while also assisting therapists in cultivating empathy and efficiency and encouraging innovative approaches in treatment procedures.

10.
Cureus ; 16(3): e55827, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38590484

RESUMO

Innovations pertaining to the ever-evolving needs of the medical and healthcare sciences remain constant. This creates a gap between the rationalized needs of the study and the proposed research question. However, classifying, identifying, and addressing these research gaps require a systematic and precise structured map. Using the Medical Subject Heading (MeSH) terms "Research Gaps" AND "Healthcare" AND "Framework" in MEDLINE, Scopus, and CINAHL databases with the filters yielded no relevant literature. Therefore, this review aims to fill this practical and clinical knowledge gap by developing the Naqvi-Gabr Research Gap Framework through critical synthesis based on extensive research on medical and healthcare research gaps. Fourteen research gaps are distributed for allocation as per the healthcare delivery system approach: developing new treatments or prevention strategies, improving diagnostic tools and techniques, addressing health disparities, and improving access to healthcare services. This structured framework determines the strategic mapping of research gaps corresponding to the nature of the research. The identification and classification of the appropriate research gap led to precise and concise conclusions corresponding to the research process proposed in this study. Hence, the Naqvi-Gabr Research Gap Framework is a valuable tool for determining the potential application of gaps by researchers, policymakers, and other stakeholders with a productive address.

11.
Cureus ; 15(7): e42046, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37602068

RESUMO

Background  The hamstring muscle is related to the lumbar spine, pelvic, and lower limb movement dysfunction, as well as low back pain and abnormal gait. The kinematic chain's distal elements dysfunctions may affect the body's proximal segments. There is a biomechanical connection between the foot and proximal segments of the body and its effect on the body's functional status, but there is a lack of research that focuses on the correlation between foot posture and hamstring muscle tightness. The study aimed to find the correlation between hamstring muscle tightness and foot posture using the foot posture index (FPI). Methods After obtaining ethical committee approval, necessary authorization was obtained from relevant authorities to proceed with participant screening. Informed consent was obtained from every participant, accompanied by a comprehensive explanation of the study. Screening of participants was conducted based on specific inclusion and exclusion criteria. These criteria were crucial for selecting a homogeneous sample and ensuring the study's objectives were met. The assessment of foot posture was carried out using FPI, and hamstring tightness was examined using an active knee extension test. Result and discussion In our study, which included 188 participants aged between 18 and 25 (mean age: 21.91±1.97), we examined the correlation between FPI and active knee extension (AKE) test results. Using Pearson's correlation coefficient, we found a statistically significant correlation between the FPI and AKE test results. For the right side, the r-value was 0.678 (p-value = 0.0001); for the left side, the r-value was 0.653 (p-value = 0.0001); and for the total, the r-value was 0.663 (p-value = 0.0001). These findings indicate a significant relationship between the FPI and AKE test results. Conclusion The findings of our study revealed a significant relationship between hamstring tightness and pronation of the foot, as measured by the FPI. Understanding this relationship is crucial as it sheds light on the potential impact of hamstring tightness on foot biomechanics. By establishing this link, our study contributes to the body of knowledge surrounding the prevention of alterations in foot biomechanics. It highlights the importance of addressing hamstring tightness to mitigate potential foot pronation issues. Moreover, the study serves as a stepping stone for future research endeavors. It lays the groundwork for further large-scale investigations that encompass a broader range of age groups.

12.
Cureus ; 15(6): e40296, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37448439

RESUMO

A systematic review was carried out on a rare dermatological condition affecting papillary dermal tissue fibers of the skin known as elastosis perforans serpiginosa (EPS). The aim of this review was to highlight this skin disease, its association with other medical conditions, and its management. The search was conducted by using the keywords "elastosis perforans serpiginosa" and "case reports" in the databases. A total of 10 case reports were analyzed and presented by the parameters like age, gender, chief complaints, and medical history. The most common causes of EPS were drug-induced and occurred along with the Wilson disease. The study concluded that as EPS is an uncommon disease with few instances, there is a need for further research to analyze randomized controlled trials that have been conducted in relation to the condition.

13.
Cureus ; 15(3): e36811, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37123792

RESUMO

Statins are the most widely used drugs for reducing lipid and cholesterol levels in the blood. However, statins have shown some adverse effects and less acceptance among patients; hence, new drugs have been promoted in the market. Furthermore, gemcabenes were discovered in 1995 and are now in phase II and III clinical trials. Gemcabene acts by inhibiting incorporation of 14C-acetate into hepatocytes and stops the mechanism of fatty acids and cholesterol synthesis. In this review the six randomized controlled trials (RCTs) were scrutinized from the two databases by using keywords "Gemcabene" AND "Randomized Controlled Trial." The trials were mainly on animal models, and two studies were found to be associated with human subjects. The study concluded that gemcabene was effective as an anti-inflammatory agent and reduced lipid levels and the progression of fibrosis. Hence, further controlled trials are needed to determine its efficacy and safety in human subjects, along with the identification of adverse effects.

14.
Cureus ; 15(4): e37048, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37153259

RESUMO

A review was conducted to evaluate interventional therapy for Fabry disease. Fabry disease is a multisystemic X-linked storage disorder that affects the entire body and needs to be treated at an early age. The search was conducted using keywords such as "Fabry disease" and "Management" to review the databases. Seven studies were chosen from the 90 studies, and it was discovered that migalastat and enzyme replacement medication were successful in treating the condition, whereas agalsidase beta failed to have a positive effect on the patient. However, this analysis produced ambiguous conclusions. As only a small number of studies were included in the analysis, additional investigations and evaluations based on randomized controlled trials and case studies are required to determine potential drug-related outcomes. There is a need for future therapeutic research to cure genetically affected illnesses and diseases such as Fabry disease.

15.
Cureus ; 15(3): e35867, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37033572

RESUMO

The aim of the present study was to develop and design software-based "virtual patient" for learning functional diagnosis with clinical reasoning of respiratory dysfunction based on need analysis and perception of faculty and student on utility in the undergraduate physiotherapy curriculum. The objective of the study was to design a framework of a respiratory case scenario that includes personal details, history taking, physical examination, differential diagnosis, investigations, functional impairment, and diagnosis, design a prototype of the virtual patient case scenario using software in a virtual environment created in oculus quest, obtain faculty and student feedback, and analyze the feedback. The result of the study obtained on feedback analysis suggests that the virtual patient case scenario (prototype) contains the relevant information in an organized and sequenced manner. The virtual patient case scenario on the virtual reality platform will be helpful as a teaching and learning modality. The study concluded that the present virtual simulated case scenario (prototype) with more cases helps to develop functional diagnosis and clinical reasoning skills as a part of the undergraduate physiotherapy curriculum.

16.
Cureus ; 15(1): e34074, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36843815

RESUMO

Hemiplegia is the medical term for paralysis of one side of the body. It results in muscular wasting on the affected side, impairs gait, reduces motor abilities, and causes instability and a loss of grasping capacity. The patient's quality of life is impacted by hemiplegia because it impairs brain and spinal cord functions. Consequently, a range of therapeutic options, including physical therapy, medical health management, and other multidisciplinary care, are accessible. The effects of treatments on juvenile patients with hemiplegia who are participating in a randomized controlled trial (RCT) are examined in this systematic review. Using the Boolean operator "AND," the research process entailed searching for keywords like "Hemiplegia" and "Pediatrics." Based on the inclusion and exclusion criteria, a total of six RCTs were included in the study. According to the study's findings, hemiplegic patients benefited from Kinesio taping (KT), botulinum toxin type-A (BoNT-A), hyaluronic acid injections, and bimanual treatment.

17.
F1000Res ; 12: 838, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37655118

RESUMO

Background: Case reports are one of the important forms of documentation and publication of clinical physiotherapy presenting the first line of evidence in scientific literature. In order to provide a systematic and precise structure for reporting and presenting cases, the CARE guidelines were established in 2013. However, these guidelines present limitations as while reporting require items of specific specialties following the checklist. Authors from different specialities have developed CARE extensions specifying the characteristic features of corresponding fields, however, an extension dealing with physiotherapy assessment and line of management in the CARE guidelines is proposed as PhyCaRe. Method: After consulting with the advisors, a draft will be prepared of the specific elements that should be included in the PhyCaRe using web Delphi methodology considering CARE statement as the source and SurveyMonkey will be used to undertake the web Delphi questionnaire. The web Delphi methodology will be assumed for three rounds and will be open to physiotherapists and others with substantial experience in reviewing case reports. Subsequently, an online consensus meeting, pilot testing, and submission of the CARE extension for physiotherapy will be conducted for publication. Dissemination: The 2010 "Guidance for Developers of Health Research Reporting" and instructions from the EQUATOR Network will be followed in the preparation of PhyCaRe guidelines. The guidelines will be propagated at different platforms and journals will be requested to adopt the guidelines. Registration: The reporting guideline under development is prospectively registered on the EQUATOR Network website on PhyCaRe - Reporting guideline for physiotherapy case reports.


Assuntos
Projetos de Pesquisa , Relatório de Pesquisa , Técnica Delphi , Consenso , Modalidades de Fisioterapia
18.
Front Mol Biosci ; 10: 1160106, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37179567

RESUMO

Volatile organic compounds (VOCs) found in exhaled breath continue to garner interest as an alternative diagnostic tool in pulmonary infections yet, their clinical integration remains a challenge with difficulties in translating identified biomarkers. Alterations in bacterial metabolism secondary to host nutritional availability may explain this but is often inadequately modelled in vitro. The influence of more clinically relevant nutrients on VOC production for two common respiratory pathogens was investigated. VOCs from Staphylococcus aureus (S.aureus) and Pseudomonas aeruginosa (P.aeruginosa) cultured with and without human alveolar A549 epithelial cells were analyzed using headspace extraction coupled with gas chromatography-mass spectrometry. Untargeted and targeted analyses were performed, volatile molecules identified from published data, and the differences in VOC production evaluated. Principal component analysis (PCA) could differentiate alveolar cells from either S. aureus or P. aeruginosa when cultured in isolation based on PC1 (p = 0.0017 and 0.0498, respectively). However, this separation was lost for S. aureus (p = 0.31) but not for P. aeruginosa (p = 0.028) when they were cultured with alveolar cells. S. aureus cultured with alveolar cells led to higher concentrations of two candidate biomarkers, 3-methyl-1-butanol (p = 0.001) and 3-methylbutanal (p = 0.002) when compared to S. aureus, alone. P. aeruginosa metabolism resulted in less generation of pathogen-associated VOCs when co-cultured with alveolar cells compared to culturing in isolation. VOC biomarkers previously considered indicative of bacterial presence are influenced by the local nutritional environment and this should be considered when evaluating their biochemical origin.

19.
PLoS One ; 17(5): e0267549, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35522618

RESUMO

INTRODUCTION: Physiotherapeutic rehabilitation are used to optimize functional recovery following a distal radial fracture (DRF). Being most common upper limb fracture in all age groups, the DRF peaks in young men and in post-menopausal women with incidence ratio of 1:4. Leap motion control based rehabilitation of patients with DRF is limited. This research aims to assess the efficacy of leap motion control based rehabilitation in patients with DRF. METHODS: In an randomized parallel group trial, subjects (n = 40) with DRF will be recruited. The participants will be enrolled into either experimental or control group with 1:1 allocation ratio. Following the primary assessment and allocation, the participants in experimental group will receive both leap motion control and conventional therapy over a period of six weeks. Participants in conventional group would undergo only conventional therapy. The primary outcome measures will be Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire and Universal goniometer however the grip strength and Visual Analog Scale (VAS) will be used as secondary outcome measures. PURPOSE OF THE STUDY: The findings of this trial will examine the impact of leap motion control in DRF patients with conventional therapy on improving the functional activity, range of motion (ROM), grip strength and pain. EXPECTED CLINICAL IMPLICATIONS: To conclude, this research seeks to examine the rapid and long term effects of leap motion control in DRF patients. The study findings would help prospective patients with DRF, which may include a newly designed approach of rehabilitation.


Assuntos
Fraturas do Rádio , Feminino , Fixação Interna de Fraturas , Força da Mão , Humanos , Masculino , Estudos Prospectivos , Ensaios Clínicos Controlados Aleatórios como Assunto , Amplitude de Movimento Articular , Ombro , Resultado do Tratamento
20.
Cureus ; 14(3): e23489, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35495018

RESUMO

Virtual reality (VR) refers to an advanced technology that provides real life-like experience in a virtual environment. Numerous commercially available systems provide gaming opportunities with VR, while a few also provide haptic feedback along with VR. In the recent past, VR has been explored as a viable intervention in the field of neurorehabilitation. Although there are promising results for adults with hemiplegia, the research involving children with infantile hemiplegia is in the nascent stage. Infantile hemiplegia is manifested by sensory and motor deficits predominantly on one side of the body resulting in adverse effects on the functionality of the affected side since early life. VR gaming has an intense, motivational component that encourages children to put sustained voluntary effort to use both upper extremities. A six-year-old male with infantile hemiplegia presented with difficulty in using the left upper extremity. Pre-intervention scores of the nine-hole peg test (9HPT) and box and block test (BBT) were used to evaluate the manual dexterity, while those of ABILHAND-kids and functional independence measure for children (WeeFIM self-care section) assessed the functional independence. The child underwent treatment for six weeks (five days/week), with each session lasting for 60 minutes/day that included VR gaming with haptic feedback for 30 minutes and conventional physiotherapy for 30 minutes. Post-intervention scores were recorded and were compared with pre-intervention scores. Marked improvement in left upper extremity function was noted not only objectively by the outcome measures but also subjectively by the parents as well as by the child. Moreover, the child remarked that he enjoyed the therapy sessions. The findings of this report would facilitate the design of further research in this area in the form of larger trials.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA