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1.
Global Spine J ; : 21925682241265327, 2024 Jun 24.
Artigo em Inglês | MEDLINE | ID: mdl-38910440

RESUMO

STUDY DESIGN: Retrospective Cohort Study. OBJECTIVE: The primary objective of this study is to evaluate the efficacy of early administration of Teriparatide in preventing the necessity of surgical intervention in individuals with osteoporotic vertebral compression fractures. METHODS: In a 24-month follow-up retrospective analysis, 191 OVCF patients from January 2016 to October 2020 were randomly assigned to Non teriparatide Group A (n = 104) or Group B teriparatide (n = 87). At baseline, 6 months, 1 year, and 2 years following treatment, demographic data and need of surgical intervention, VAS, ODI, union rates, and kyphosis development, were examined. RESULTS: Our study found that non-teriparatide group individuals had an 11.53% higher risk of non-union formation that required surgery. Only 8.63% of teriparatide group patients needed surgery. Both groups had significant VAS score reductions. Non-teriparatide group scores declined from 8.38 ± 0.74 to 3.15 ± 1.40, while teriparatide group scores decreased from 8.49 ± 0.73 to 1.11 ± 0.31. The 2-year follow-up ODI scores significantly decreased, with values of 25.02 ± 13.94 for non-teriparatide patients and 15.11 ± 2.17 for teriparatide patients. The kyphosis progression angles in the teriparatide group were considerably lower (4.97 ± 0.78°) compared to the other group (8.09 ± 1.25°). CONCLUSION: With increasing elderly populations, it is necessary to take measures to prevent surgical intervention in osteoporotic spinal compression fractures. Teriparatide can be employed as an early medication in the management of these fractures to avert non-union and the minimise the progression of kyphosis.

3.
JAMA Netw Open ; 7(3): e241958, 2024 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-38470416

RESUMO

Importance: COVID-19 prompted rapid development of scarce resource allocation (SRA) policies to be implemented if demand eclipsed health systems' ability to provide critical care. While SRA policies follow general ethical frameworks, understanding priorities of those affected by policies and/or tasked with implementing them is critical. Objective: To evaluate whether community members and health care profesionals (HCP) agree with SRA protocols at the University of California (UC). Design, Setting, and Participants: This survey study used social media and community-partnered engagement to recruit participants to a web-based survey open to all participants aged older than 18 years who wished to enroll. This study was fielded between May and September 2020 and queried participants' values and preferences on draft SRA policy tenets. Participants were also encouraged to forward the survey to their networks for snowball sampling. Data were analyzed from July 2020 to January 2024. Main Outcomes and Measures: Survey items assessed values and preferences, graded on Likert scales. Agreement was tabulated as difference in Likert points between expressed opinion and policy tenets. Descriptive statistics were tested for significance by HCP status. Free text responses were analyzed using applied rapid qualitative analysis. Results: A total of 1545 participants aged older than 18 years (mean [SD] age 49 [16] years; 1149 female participants [74%], 478 health care practitioners [30%]) provided data on SRA values and preferences. Agreement with UC SRA policy as drafted was moderately high among respondents, ranging from 67% to 83% across domains. Higher agreement with the interim policy was observed for laypersons across all domains except health-related factors. HCPs agreed more strongly on average that resources should not be allocated to those less likely to survive (HCP mean, 3.70; 95% CI, 3.16-3.59; vs layperson mean, 3.38; 95% CI, 3.17-3.59; P = .002), and were more in favor of reallocating life support from patients less likely to those more likely to survive (HCP mean, 6.41; 95% CI, 6.15-6.67; vs layperson mean, 5.40; 95% CI, 5.23-5.58; P < .001). Transparency and trust building themes were common in free text responses and highly rated on scaled items. Conclusions and Relevance: This survey of SRA policy values found moderate agreement with fundamental principles of such policies. Engagement with communities affected by SRA policy should continue in iterative refinement in preparation for future crises.


Assuntos
COVID-19 , Pessoal de Saúde , Humanos , Feminino , Idoso , Pessoa de Meia-Idade , COVID-19/epidemiologia , Cuidados Críticos , Instalações de Saúde , Alocação de Recursos
4.
EMBO Rep ; 25(4): 1909-1935, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38424231

RESUMO

Stabilization of microtubule plus end-directed kinesin CENP-E at the metaphase kinetochores is important for chromosome alignment, but its mechanism remains unclear. Here, we show that CKAP5, a conserved microtubule plus tip protein, regulates CENP-E at kinetochores in human cells. Depletion of CKAP5 impairs CENP-E localization at kinetochores at the metaphase plate and results in increased kinetochore-microtubule stability and attachment errors. Erroneous attachments are also supported by computational modeling. Analysis of CKAP5 knockout cancer cells of multiple tissue origins shows that CKAP5 is preferentially essential in aneuploid, chromosomally unstable cells, and the sensitivity to CKAP5 depletion is correlated to that of CENP-E depletion. CKAP5 depletion leads to reduction in CENP-E-BubR1 interaction and the interaction is rescued by TOG4-TOG5 domain of CKAP5. The same domain can rescue CKAP5 depletion-induced CENP-E removal from the kinetochores. Interestingly, CKAP5 depletion facilitates recruitment of PP1 to the kinetochores and furthermore, a PP1 target site-specific CENP-E phospho-mimicking mutant gets stabilized at kinetochores in the CKAP5-depleted cells. Together, the results support a model in which CKAP5 controls mitotic chromosome attachment errors by stabilizing CENP-E at kinetochores and by regulating stability of the kinetochore-attached microtubules.


Assuntos
Proteínas Cromossômicas não Histona , Cinetocoros , Humanos , Cinetocoros/metabolismo , Proteínas Cromossômicas não Histona/genética , Proteínas Cromossômicas não Histona/metabolismo , Microtúbulos/metabolismo , Metáfase , Cinesinas/genética , Células HeLa , Mitose , Segregação de Cromossomos , Proteínas Associadas aos Microtúbulos/genética , Proteínas Associadas aos Microtúbulos/metabolismo
5.
Asian Spine J ; 17(6): 1098-1107, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38050359

RESUMO

STUDY DESIGN: Retrospective cohort study. PURPOSE: This study aimed to compare the efficacy of bisphosphonates and teriparatide in the management of osteoporotic vertebral compression fractures with regard to pain management, prevention of nonunion, and radiological as well as clinical outcomes. OVERVIEW OF LITERATURE: Osteoporosis refers to a skeletal disorder characterized by decreased bone strength caused by poor bone density and quality causing fragility, resulting in long periods of pain-related immobilization. METHODS: In a 24-month follow-up retrospective study, 191 patients with osteoporotic vertebral compression fractures were randomly assigned to the bisphosphonate group (n=104) or the teriparatide group (n=87), with patients opting for their treatment between January 2016 and October 2020. Demographic data and patient-reported outcomes scores, including the Visual Analog Scale (VAS), Oswestry Disability Index (ODI), union rates, and kyphosis progression, were assessed at baseline, 6 months, 1 year, and 2 years after treatment. RESULTS: Both groups had a significant decrease in VAS, from 8.38±0.74 to 3.15±1.40 in the bisphosphonate group and from 8.49±0.73 to 1.11±0.31 in the teriparatide group. The ODI scores reduced significantly at 2-year follow-ups, recording 25.02±13.94 and 15.11±2.17 in the bisphosphonate and teriparatide groups, respectively. Risks of nonunion development were slightly higher at 11.53% in the bisphosphonate group and 8.63% in the teriparatide group required operative intervention. The kyphosis progression angles were also significantly lower in the teriparatide group (4.97°±0.78°) than in the bisphosphonate group (8.09°±1.25°). CONCLUSIONS: Over time, numerous studies have demonstrated the efficacy of bisphosphonates and teriparatide in ameliorating pain. In this study, the efficacy of teriparatide surpassed that of bisphosphonates in certain aspects, such as the initial 6-month union rates and reduction in the progression of segmental kyphosis. However, bisphosphonates and teriparatide yield similar and favorable union rates at 1 year and final follow-up.

6.
BMJ Open Qual ; 12(4)2023 12 22.
Artigo em Inglês | MEDLINE | ID: mdl-38135304

RESUMO

OBJECTIVES: Low-value esophagogastroduodenoscopies (EGDs) for uncomplicated gastro-oesophageal reflux disease (GERD) can harm patients and raise patient and payer costs. We developed an electronic health record (EHR) 'eMeasure' to detect low-value EGDs. DESIGN: Retrospective cohort of 518 adult patients diagnosed with GERD who underwent initial EGD between 1 January 2019 and 31 December 2019. SETTING: Outpatient primary care and gastroenterology clinics at a large, urban, academic health centre. PARTICIPANTS: Adult primary care patients at the University of California Los Angeles who underwent initial EGD for GERD in 2019. MAIN OUTCOME MEASURES: EGD appropriateness criteria were based on the American College of Gastroenterology 2012 guidelines. An initial EGD was considered low-value if it lacked a documented guideline-based indication, including alarm symptoms (eg, iron-deficiency anaemia); failure of an 8-week proton pump inhibitor trial or elevated Barrett's oesophagus risk. We performed manual chart review on a random sample of 204 patients as a gold standard of the eMeasure's validity. We estimated EGD costs using Medicare physician and facility fee rates. RESULTS: Among 518 initial EGDs performed (mean age 53 years; 54% female), the eMeasure identified 81 (16%) as low-value. The eMeasure's sensitivity was 42% (95% CI 22 to 61) and specificity was 93% (95% CI 89 to 96). Stratifying across clinics, 62 (74.6%) low-value EGDs originated from 2 (12.5%) out of 16 clinics. Total cost for 81 low-value EGDs was approximately US$75 573, including US$14 985 in patients' out-of-pocket costs. CONCLUSIONS: We developed a highly specific eMeasure that showed that low-value EGDs occurred frequently in our healthcare system and were concentrated in a minority of clinics. These results can inform future QI efforts at our institution, such as best practice alerts for the ordering physician. Moreover, this open-source eMeasure has a much broader potential impact, as it can be integrated into any EHR and improve medical decision-making at the point of care.


Assuntos
Registros Eletrônicos de Saúde , Refluxo Gastroesofágico , Adulto , Humanos , Feminino , Idoso , Estados Unidos , Pessoa de Meia-Idade , Masculino , Estudos Retrospectivos , Medicare , Refluxo Gastroesofágico/diagnóstico , Refluxo Gastroesofágico/complicações , Endoscopia do Sistema Digestório/métodos
7.
Sci Rep ; 13(1): 18787, 2023 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-37914794

RESUMO

Carbon fibre-reinforced polyetheretherketone (CF-PEEK) composites have gained significant usage across diverse industries like automotive and aerospace due to their desirable characteristics. These properties encompass recyclability, low density, high strength, wear resistance and thermal stability. The components made from CF-PEEK composites for space applications will be subjected to a high radiation environment due to the incoming cosmic rays, comprising protons, α particles, electrons, γ rays, etc., once they escape the Earth's atmosphere. The ion irradiation of CF-PEEK is accompanied by radiation-induced effects, which drastically change the structure and properties of irradiated material. Since the resistance of CF-PEEK to radiation damage has not been studied extensively, this study aims to understand the effect of high-energy He2+ ions on the microstructure and properties of CF-PEEK composites manufactured using automated fibre placement (AFP) under different processing conditions. The samples have been radiated with 5 MeV He2+ ions using an energy degrader wheel to create a layer with relatively uniform damage. Then, were characterized using optical and scanning electron microscopy and their hardness was evaluated using nanoindentation. It was observed that, irradiation increases the hardness of the fibres in all cases. Also, fibre orientation affects the hardness in a statistically significant manner in both unirradiated and irradiated conditions.

8.
Cell Mol Life Sci ; 80(12): 374, 2023 Nov 26.
Artigo em Inglês | MEDLINE | ID: mdl-38008853

RESUMO

Faithful chromosome segregation requires correct attachment of kinetochores with the spindle microtubules. Erroneously-attached kinetochores recruit proteins to activate Spindle assembly checkpoint (SAC), which senses the errors and signals cells to delay anaphase progression for error correction. Temporal control of the levels of SAC activating-proteins is critical for checkpoint activation and silencing, but its mechanism is not fully understood. Here, we show that E3 ubiquitin ligase, SCF-FBXW7 targets BubR1 for ubiquitin-mediated degradation and thereby controls SAC in human cells. Depletion of FBXW7 results in prolonged metaphase arrest with increased stabilization of BubR1 at kinetochores. Similar kinetochore stabilization is also observed for BubR1-interacting protein, CENP-E. FBXW7 induced ubiquitination of both BubR1 and the BubR1-interacting kinetochore-targeting domain of CENP-E, but CENP-E domain degradation is dependent on BubR1. Interestingly, Cdk1 inhibition disrupts FBXW7-mediated BubR1 targeting and further, phospho-resistant mutation of Cdk1-targeted phosphorylation site, Thr 620 impairs BubR1-FBXW7 interaction and FBXW7-mediated BubR1 ubiquitination, supporting its role as a phosphodegron for FBXW7. The results demonstrate SCF-FBXW7 as a key regulator of spindle assembly checkpoint that controls stability of BubR1 and its associated CENP-E at kinetochores. They also support that upstream Cdk1 specific BubR1 phosphorylation signals the ligase to activate the process.


Assuntos
Proteínas de Ciclo Celular , Proteínas Serina-Treonina Quinases , Humanos , Proteínas de Ciclo Celular/metabolismo , Proteína 7 com Repetições F-Box-WD/genética , Proteína 7 com Repetições F-Box-WD/metabolismo , Células HeLa , Cinetocoros/metabolismo , Mitose , Proteínas Serina-Treonina Quinases/genética , Proteínas Serina-Treonina Quinases/metabolismo , Fuso Acromático/metabolismo , Ubiquitina/metabolismo , Ubiquitina-Proteína Ligases/genética , Ubiquitina-Proteína Ligases/metabolismo
9.
Science ; 382(6671): eabn4732, 2023 11 10.
Artigo em Inglês | MEDLINE | ID: mdl-37943926

RESUMO

Miniature wireless bioelectronic implants that can operate for extended periods of time can transform how we treat disorders by acting rapidly on precise nerves and organs in a way that drugs cannot. To reach this goal, materials and methods are needed to wirelessly transfer energy through the body or harvest energy from the body itself. We review some of the capabilities of emerging energy transfer methods to identify the performance envelope for existing technology and discover where opportunities lie to improve how much-and how efficiently-we can deliver energy to the tiny bioelectronic implants that can support emerging medical technologies.


Assuntos
Transferência de Energia , Miniaturização , Próteses e Implantes , Dispositivos Eletrônicos Vestíveis , Tecnologia sem Fio , Humanos , Corpo Humano
10.
Asian J Neurosurg ; 18(2): 312-320, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37397052

RESUMO

Aim The aim of this study was to undertake a clinical study to evaluate the outcomes of transforaminal endoscopic discectomy under local anesthesia and to study the complication rate. Study Design It is a prospective study. Methods We prospectively analyzed outcomes of 60 patients with a single-level lumbar disc prolapse in rural India from December 2018 to April 2020 who underwent endoscopic discectomy under local anesthesia. Follow-up was done using the visual analogue score (VAS) and Oswestry Disability Index (ODI) scoring systems with a minimum follow-up up to 1 year postoperatively. Results In our study of 60 patients, there was 38 cases of L4-L5 disc pathology, 13 L5-S1 discs, and 9 L3-L4 discs. Our study showed a significant clinical reduction in mean VAS score that was 7.07/10 preoperatively and reduced to 3.88/10 at the third month and 3.64/10 at 1 year of follow-up ( p -value < 0.05) showing clinical significance. The ODI scoring done preoperatively was an average mean of 57.37% pointing to how crippled the patients were with lumbar disc prolapse and showed a significant reduction to 29.32% postoperatively at 1 year ( p -value < 0.05) showing clinical significance. This reduction in ODI directly corelates to how almost all patients returned to normal life coping to all activities and were completely pain free at 1 year of follow-up. Conclusion Endoscopic spine surgery in lumbar disc prolapse is highly effective and can deliver a good functional outcome if done with correct preoperative planning and approach.

11.
J Orthop Case Rep ; 13(2): 30-33, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37144072

RESUMO

Introduction: Chloromas are defined as metastatic granulocytic solid tumors of myeloid origin occurring at an extramedullary site. In this case report, we present an uncommon case of chronic myeloid leukemia (CML) presenting with metastatic sarcoma to the dorsal spine causing acute paraparesis. Case Report: A 36-year-old male presented in the OPD with complaints of progressive upper back pain and acute paraparesis since a 1 week. The patient is a previously diagnosed case of CML on treatment for the same. MRI of the dorsal spine indicated extradural soft-tissue lesions in D5-D9 extending to the right side of the spinal canal displacing the cord to the left. Considering the acute paraparesis that the patient developed, he was taken for an emergency decompression of the tumor. Microscopy showed infiltration of fibrocartilaginous tissue of polymorphous origin mixed with atypical myeloid precursor cells. Immunohistochemistry reports show atypical cells diffusely expressing myeloperoxidase, focally expressing CD34 and Cd117. Conclusion: Rare case reports like this are the only literature available on remission in CML cases with sarcomas. The acute paraparesis in our patient was prevented from increasing to a paraplegia by surgical means. Immediate decompression of the spinal cord in patients with paraparesis and associated radiotherapy and chemotherapy should be considered in all patients with myeloid sarcomas of CML origin. While examining patients of CML, the possibility of a granulocytic sarcoma should always be kept in mind.

12.
Lang Speech Hear Serv Sch ; 54(3): 781-793, 2023 07 05.
Artigo em Inglês | MEDLINE | ID: mdl-37018017

RESUMO

PURPOSE: This review article critically interrogates the history and the current practice of standardized assessment in speech and language therapy. Speech and language assessments utilizing standardized linguistic norms are a critical tool for constructing disability and controlling disabled individuals. Such practices are rooted in a medical model of disability where the linguistic practice(s) of the individual is pathologized to create normalcy and disorder. METHOD: We examine how these practices are anchored in eugenics and the racist logics of intelligence testing in which racialized populations were rendered as linguistically and biologically inferior. RESULTS: This review article shows how ideologies governing standardized assessments are influenced by racism, ableism, and the nation-state and serve as foundational mechanisms to enable surveillance and capital production. It demonstrates how standard language ideologies are central to standardized testing. Speech and language therapy practices upholding these ideologies contribute to unrestrained wealth generation for the testing industry. CONCLUSIONS: The review article ends with a call for clinicians, educators, and researchers to critically examine the relationship between standardized assessment, race, disability, and capitalism in speech-language therapy. This process will contribute toward dismantling the hegemonic role of standardized assessment in oppression and marginalization of speech and language-disabled individuals.


Assuntos
Terapia da Linguagem , Fala , Humanos , Fonoterapia , Idioma , Linguística
14.
J Biol Chem ; 299(2): 102853, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36592928

RESUMO

The kinetochore establishes the linkage between chromosomes and the spindle microtubule plus ends during mitosis. In vertebrates, the spindle-kinetochore-associated (Ska1,2,3) complex stabilizes kinetochore attachment with the microtubule plus ends, but how Ska is recruited to and stabilized at the kinetochore-microtubule interface is not understood. Here, our results show that interaction of Ska1 with the general microtubule plus end-associated protein EB1 through a conserved motif regulates Ska recruitment to kinetochores in human cells. Ska1 forms a stable complex with EB1 via interaction with the motif in its N-terminal disordered loop region. Disruption of this interaction either by deleting or mutating the motif disrupts Ska complex recruitment to kinetochores and induces chromosome alignment defects, but it does not affect Ska complex assembly. Atomic-force microscopy imaging revealed that Ska1 is anchored to the C-terminal region of the EB1 dimer through its loop and thereby promotes formation of extended structures. Furthermore, our NMR data showed that the Ska1 motif binds to the residues in EB1 that are the binding sites of other plus end targeting proteins that are recruited to microtubules by EB1 through a similar conserved motif. Collectively, our results demonstrate that EB1-mediated Ska1 recruitment onto the microtubule serves as a general mechanism for the formation of vertebrate kinetochore-microtubule attachments and metaphase chromosome alignment.


Assuntos
Proteínas Cromossômicas não Histona , Cinetocoros , Proteínas Associadas aos Microtúbulos , Humanos , Proteínas Cromossômicas não Histona/genética , Proteínas Cromossômicas não Histona/metabolismo , Cinetocoros/metabolismo , Proteínas Associadas aos Microtúbulos/genética , Proteínas Associadas aos Microtúbulos/metabolismo , Microtúbulos/metabolismo , Mitose
15.
Int J Lang Commun Disord ; 58(2): 576-600, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36428270

RESUMO

BACKGROUND: Although there is a growing body of literature on cognitive and language processing in bilingual children with developmental language disorder (DLD), there is a major gap in the evidence for language intervention. Critically, speech-language therapists are often required to make clinical decisions for language intervention on specific domains, such as phonology, vocabulary, morphosyntax and literacy. AIMS: To examine evidence for language intervention and cross-language transfer effects in bilingual children with DLD. Specifically, the study aimed to review intervention evidence targeting non-linguistic cognitive skills and six areas of language: phonology, vocabulary, morphosyntax, pragmatics, narrative skills and literacy. METHODS & PROCEDURES: We carried out searches in five electronic databases: CINAHL, Scopus, Psychinfo, Proquest and Sciencedirect. Data from selected papers were extracted and organized into the three following categories: study information, participant information and intervention information. Critical appraisal for selected papers was conducted using a quality assessment tool (QAT). OUTCOMES & RESULTS: We included 14 papers in the review. The majority indicated evidence for vocabulary intervention. There was limited evidence for intervention targeting phonology or morphosyntax. Cross-language generalization effects were evident for vocabulary, but in some instances also reported for morphosyntax and literacy. CONCLUSIONS & IMPLICATIONS: The present review indicates that there is a significant gap in the literature regarding language intervention for several key language areas such as morphosyntax, narrative skills and literacy. There are only limited data for the effects of cross-language generalization indicating that more research is needed in this area specifically for skills beyond vocabulary. WHAT THIS PAPER ADDS: What is already known on the subject Previous studies have examined the effects of bi- and monolingual intervention in bilingual children with DLD. Although the results indicated superior effects for bilingual compared with monolingual intervention, language intervention evidence in specific language domains (e.g., vocabulary, literacy) has not been investigated. What this paper adds to existing knowledge This study will add intervention evidence specific to language domains such as phonology, vocabulary, morphosyntax, pragmatics, narrative skills and literacy. Additionally, we have synthesized intervention evidence on non-linguistic cognition given that these skills are often impaired in bilingual children with DLD. The review has also demonstrated evidence for the effects of cross-language transfer beyond vocabulary skills, especially when the intervention was provided in the home language. What are the potential or actual clinical implications of this work? Although there was a lack of intervention evidence in language domains such as pragmatics, the results indicated some evidence for intervention targeting vocabulary. However, positive effects of cross-language generalization were not constrained to vocabulary but were also reported for intervention targeting mean length of utterance and literacy in the home language. This result indicates an interactive nature of the two languages, as well as provides further evidence for supporting home language(s) in intervention. Finally, intervention targeting non-linguistic cognition may yield additional cross-domain generalization to language skills specifically for bilingual children with DLD.


Assuntos
Transtornos do Desenvolvimento da Linguagem , Multilinguismo , Humanos , Criança , Transtornos do Desenvolvimento da Linguagem/diagnóstico , Transtornos do Desenvolvimento da Linguagem/terapia , Transtornos do Desenvolvimento da Linguagem/psicologia , Linguagem Infantil , Idioma , Vocabulário
16.
J Orthop Case Rep ; 13(12): 148-152, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38162342

RESUMO

Introduction: Hodgkin's lymphoma has been observed to rarely manifest with extra nodal involvement, typically occurring in the latter stages of the disease. However, spinal cord compression may also be regarded as a rare predominant symptom to occur in this context. In this case report, we discuss the clinical details of a 37-year-old patient who exhibited upper motor neuron symptoms and gait imbalance. The patient's medical history includes a confirmed diagnosis of Hodgkin's lymphoma. Case Report: A 37-year-old male patient reported to the outpatient department with bilateral upper limb weakness and gait impairment. The individual presented as a documented case of previous Hodgkin's lymphoma, with magnetic resonance imaging (MRI) revealing the presence of anterior epidural soft tissue mass at the C6-D1 vertebral levels. This pathological condition resulted in the compression and posterior displacement of the spinal cord. The patient was scheduled to have an emergency decompression surgery involving a C7 corpectomy and C6-D1 fusion procedure utilizing a mesh cage and plate. Conclusion: The conventional approach of utilizing only Chemotherapy and Radiotherapy for patients with Hodgkin's lymphoma should be reevaluated, as it is imperative to address neurological symptoms resulting from spinal cord compression which also can indicate the stage of the disease. Incorporating surgical interventions into the treatment plan can contribute to the restoration of function in affected patients.

17.
Cureus ; 15(12): e51002, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38259359

RESUMO

BACKGROUND: Remdesivir is a broad-spectrum antiviral drug that received emergency use authorization in the first wave of the COVID-19 pandemic. However, its effectiveness in preventing mortality in COVID-19 patients who required intensive care was unclear. PATIENTS AND METHODS: We retrospectively analyzed clinical data of 302 patients from intensive care units of a quaternary care center with moderate to severe COVID-19 illness and followed them until discharge between March 2020 and February 2021. Participants who received at least five doses of Remdesivir were compared against participants who received standard care. The primary outcome was all-cause mortality. Secondary outcomes included invasive mechanical ventilation, clinical worsening, and intensive care stay. RESULTS: Remdesivir use was not associated with all-cause mortality in this cohort (age and sex-adjusted OR = 0.76, 95% CI 0.4 -1.5, p = 0.409). However, when stratified for clinical severity and steroid use, Remdesivir demonstrated a strong negative association with all-cause mortality in severely ill patients (OR 0.3, 95% CI 0.1 - 0.6, p = 0.003) or when used along with intravenous Methylprednisolone (Infusion/Bolus, OR 0.2/0.3, 95% CI 0.1 - 0.9 p = 0.06). Remdesivir use was not significantly associated with invasive mechanical ventilation or clinical worsening but with prolonged ICU stay. CONCLUSION: While Remdesivir use may not affect all-cause mortality in moderate to severely ill COVID-19 ICU patients, it may still benefit severely ill patients or when used with intravenous steroids. However, the limitations of the present study necessitate a randomized controlled trial to test this combined intervention strategy.

18.
ACS Sens ; 7(8): 2253-2261, 2022 08 26.
Artigo em Inglês | MEDLINE | ID: mdl-35938877

RESUMO

Real-time in vivo detection of biomarkers, particularly nitric oxide (NO), is of utmost importance for critical healthcare monitoring, therapeutic dosing, and fundamental understanding of NO's role in regulating many physiological processes. However, detection of NO in a biological medium is challenging due to its short lifetime and low concentration. Here, we demonstrate for the first time that photonic microring resonators (MRRs) can provide real-time, direct, and in vivo detection of NO in a mouse wound model. The MRR encodes the NO concentration information into its transfer function in the form of a resonance wavelength shift. We show that these functionalized MRRs, fabricated using complementary metal oxide semiconductor (CMOS) compatible processes, can achieve sensitive detection of NO (sub-µM) with excellent specificity and no apparent performance degradation for more than 24 h of operation in biological medium. With alternative functionalizations, this compact lab-on-chip optical sensing platform could support real-time in vivo detection of myriad of biochemical species.


Assuntos
Técnicas Biossensoriais , Silício , Animais , Camundongos , Óxido Nítrico , Óptica e Fotônica , Fótons
19.
Indian J Hematol Blood Transfus ; 38(3): 522-528, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35747574

RESUMO

In patients with Cerebral Venous Thrombosis (CVT), inherited and acquired thrombophilic conditions have been studied either individually or as subset of a comprehensive evaluation. None of the studies have included a comprehensive evaluation of all the known associations. The associations for various conditions have been found to differ significantly between the Indian and the Western population. We defined a Comprehensive Thrombophilia panel (inherited and acquired) comprising of 13 thrombophilic conditions to include all the relevant known associations in CVT. All patients in this cross-sectional study were evaluated as per the defined protocol during the three-year study period. We evaluated 42 patients of CVT for presence of inherited and acquired thrombophilic conditions. The mean age of the study population was 38.4 yrs. An inherited or an acquired thrombophilic condition was diagnosed in 76% patients. Hyperhomocysteinemia and raised factor VIII levels were the most common conditions, seen in 38% and 35.7% patients respectively. MTHFR mutation was seen in 21% patients. Protein S deficiency was seen in 7% patients. Factor V Leiden and JAK2 positive MPN were seen in 2.3% cases. We did not detect any patients with Protein C deficiency, APLA syndrome, anti-thrombin deficiency, PG20210A mutation or PNH. PAI-1 polymorphism was not included in the protocol as its role is controversial and it has not been established in Indian studies. There is an urgent need for Comprehensive Thrombophilia testing in a larger population of CVT patients to better delineate the spectrum of associated thrombophilic conditions. Such a study is bound to impact therapy and prognosis of CVT.

20.
Am J Speech Lang Pathol ; 31(4): 1913-1918, 2022 07 12.
Artigo em Inglês | MEDLINE | ID: mdl-35640097

RESUMO

PURPOSE: In this commentary, we offer a critique of "A Viewpoint on Accent Services: Framing and Terminology Matter" (Grover et al., 2022). We argue that the authors' proposal to rename and reframe accent modification lacks criticality, which actually hinders-rather than advances-the movement toward equitable, culturally sustaining, and emancipatory practices. METHOD: We offer an analysis of the shortfall between the authors' calls for linguistic justice in "A Viewpoint on Accent Services" and the actual changes they proposed. We break down major gaps in criticality, reflexivity, practice, and vision and discuss their potential for undercutting meaningful progress as it relates to linguistic justice. RESULTS: We found that the frameworks for the pursuit of equity, cultural sustenance, and emancipatory practices were misrepresented in the article in such a way that suggests that these goals could be achieved through superficial changes in terminology and attitudes. "A Viewpoint on Accent Services" upholds a power-neutral frame of operation that does not address the deeper systemic forces that make accent modification problematic. The lack of criticality toward accent intervention fosters complacency toward real transformation. CONCLUSION: We advocate for a serious and critical interrogation of accent practices and commitment to an emancipatory practice that addresses linguistic discrimination above all else. We emphasize the need to decenter standardized languages and to co-envision linguistic liberation using critical methods in scholarship, pedagogy, clinical practice, and policy.


Assuntos
Idioma , Linguística , Humanos
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