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1.
J Obstet Gynaecol Can ; 46(6): 102435, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38458270

RESUMO

OBJECTIVES: To compare surgeon responses regarding their surgical plan before and after receiving a patient-specific three-dimensional (3D)-printed model of a patient's multifibroid uterus created from their magnetic resonance imaging. METHODS: 3D-printed models were derived from standard-of-care pelvic magnetic resonance images of patients scheduled for surgical intervention for multifibroid uterus. Relevant anatomical structures were printed using a combination of transparent and opaque resin types. 3D models were used for 7 surgical cases (5 myomectomies, 2 hysterectomies). A staff surgeon and 1 or 2 surgical fellow(s) were present for each case. Surgeons completed a questionnaire before and after receiving the model documenting surgical approach, perceived difficulty, and confidence in surgical plan. A postoperative questionnaire was used to assess surgeon experience using 3D models. RESULTS: Two staff surgeons and 3 clinical fellows participated in this study. A total of 15 surgeon responses were collected across the 7 cases. After viewing the models, an increase in perceived surgical difficulty and confidence in surgical plan was reported in 12/15 and 7/15 responses, respectively. Anticipated surgical time had a mean ± SD absolute change of 44.0 ± 47.9 minutes and anticipated blood loss had an absolute change of 100 ± 103.5 cc. 2 of 15 responses report a change in pre-surgical approach. Intra-operative model reference was reported to change the dissection route in 8/15 surgeon responses. On average, surgeons rated their experience using 3D models 8.6/10 for pre-surgical planning and 8.1/10 for intra-operative reference. CONCLUSIONS: Patient-specific 3D anatomical models may be a useful tool to increase a surgeon's understanding of complex gynaecologic anatomy and to improve their surgical plan. Future work is needed to evaluate the impact of 3D models on surgical outcomes in gynaecology.


Assuntos
Imageamento por Ressonância Magnética , Modelos Anatômicos , Impressão Tridimensional , Útero , Humanos , Feminino , Útero/cirurgia , Útero/diagnóstico por imagem , Útero/anatomia & histologia , Neoplasias Uterinas/cirurgia , Neoplasias Uterinas/diagnóstico por imagem , Miomectomia Uterina/métodos , Histerectomia/métodos , Leiomioma/cirurgia , Leiomioma/diagnóstico por imagem , Leiomioma/patologia , Adulto , Cirurgiões
2.
J Obstet Gynaecol Can ; 46(1): 102283, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-38341225

RESUMO

OBJECTIVE: To provide evidence-based recommendations for the management of chronic pelvic pain in females. TARGET POPULATION: This guideline is specific to pelvic pain in adolescent and adult females and excluded literature that looked at pelvic pain in males. It also did not address genital pain. BENEFITS, HARMS, AND COSTS: The intent is to benefit patients with chronic pelvic pain by providing an evidence-based approach to management. Access to certain interventions such as physiotherapy and psychological treatments, and to interdisciplinary care overall, may be limited by costs and service availability. EVIDENCE: Medline and the Cochrane Database from 1990 to 2020 were searched for articles in English on subjects related to chronic pelvic pain, including diagnosis, overlapping pain conditions, central sensitization, management, medications, surgery, physiotherapy, psychological therapies, alternative and complementary therapies, and multidisciplinary and interdisciplinary care. The committee reviewed the literature and available data and used a consensus approach to develop recommendations. Only articles in English and pertaining to female subjects were included. VALIDATION METHODS: The authors rated the quality of evidence and strength of recommendations using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. See online Appendix A (Tables A1 for definitions and A2 for interpretations of strong and conditional [weak] recommendations). INTENDED AUDIENCE: Family physicians, gynaecologists, urologists, pain specialists, physiotherapists, and mental health professionals. TWEETABLE ABSTRACT: Management of chronic pelvic pain should consider multifactorial contributors, including underlying central sensitization/nociplastic pain, and employ an interdisciplinary biopsychosocial approach that includes pain education, physiotherapy, and psychological & medical treatments. SUMMARY STATEMENTS: RECOMMENDATIONS.


Assuntos
Dor Crônica , Adulto , Feminino , Humanos , Adolescente , Dor Crônica/diagnóstico , Dor Crônica/terapia , Dor Pélvica/terapia , Dor Pélvica/cirurgia
3.
J Obstet Gynaecol Can ; 46(5): 102450, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38555044

RESUMO

OBJECTIVE: To provide a contemporary approach to the understanding of the impact and methods for the diagnosis of endometriosis in Canada. TARGET POPULATION: Individuals, families, communities, health care providers, and health care administrators who are affected by, care for patients with, or manage delivery of services for endometriosis. OPTIONS: The diagnosis of endometriosis is facilitated by a detailed history, examination, and imaging tests with providers who are experienced in endometriosis care. Surgical evaluation with pathology confirms a diagnosis of endometriosis; however, it is not required for those whose diagnosis was confirmed with imaging. OUTCOMES: There is a need to address earlier recognition of endometriosis to facilitate timely access to care and support. Education directed at the public, affected individuals and families, health care providers, and health care administrators are essential to reduce delays in diagnosis and treatment. BENEFITS, HARMS, AND COSTS: Increased awareness and education about the impact and approach to diagnosis may support timely access to care for patients and families affected by endometriosis. Earlier and appropriate care may support a reduced health care system burden; however, improved clinical evaluation may require initial investments. EVIDENCE: Each section was reviewed with a unique search strategy representative of the evidence available in the literature related to the area of focus. The literature searches for each section of this guideline are listed in Appendix A and include information from published systematic reviews described in the text. VALIDATION METHODS: The recommendations were developed following two rounds of review by a national expert panel through an iterative 2-year consensus process. Further details on the process are shared in Appendix B. The authors rated the quality of evidence and strength of recommendations using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. See Appendix C (Table C1 for definitions and Table C2 for interpretations of strong and conditional recommendations). INTENDED AUDIENCE: This guideline is intended to support health care providers and policymakers involved in the care of those impacted by endometriosis and the systems required to support them. TWEETABLE ABSTRACT: Endometriosis impact and diagnosis updated guidelines for Canadian health care providers and policymakers. SUMMARY STATEMENTS: RECOMMENDATIONS.


Assuntos
Endometriose , Endometriose/diagnóstico , Endometriose/terapia , Humanos , Feminino , Canadá
4.
Aesthetic Plast Surg ; 2024 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-38789806

RESUMO

OBJECTIVES: Chemical peels are used to treat photoageing, pigmentation, improve complexion and dull skin, fine lines and scars. The objective of this study is to do comparative analysis of Lactic Acid 30% with Ferulic peel 12% (combination peel) versus TCA 10% with Ferulic peel 12% (combination peel) for Photoageing Skin. MATERIALS AND METHODS: This is a retrospective study from September 2021 to 2022 with total 50 female patients aged between 25 and 40 years were treated. Randomisation of patients was done (simple randomisation using lottery method) for both groups with 25 patients enrolled in each group. The first group (Group A-25 patients) were treated with lactic acid 30% with Ferulic peel 12% (combination peel). The second group (Group B-25 patients) were treated with TCA 10% with Ferulic peel 12% (combination peel). Inclusion and exclusion criteria have been defined for the study. Two scales have been used for assessing the results: Allergan Skin Roughness Scale (ASRS) and Allergan Fine Line Scale (AFLS). ASRS and AFLS scores were assessed at pre-treatment (pre) and post treatment (post-1 month after last peel session). Data were summarised in Mean ± SD (standard deviation). Pre and post groups were compared by paired t test. The pre to post change in outcome measures between two independent groups were compared by independent Student's t test. Discrete (categorical) groups were compared by Chi-square (χ2) test. A two-tailed (α=2) P < 0.05 was considered statistically significant. Analyses were performed on SPSS software (Windows version 22.0). Patients were followed up for 6 months post treatment. RESULTS: In Group A, comparing the pre and post ASRS score, paired t test showed significant (P < 0.001) decrease or improvement of 56.1%. In Group B, comparing the pre and post ASRS score, paired t test showed significant (P < 0.001) decrease or improvement of 52.8%. Comparing the pre to post mean decrease or improvement in ASRS score of two groups, Student's t test showed similar (P > 0.05) improvement between the two groups though it was 2.5% higher in Group B as compared to Group A. In Group A, comparing the pre and post AFLS score, paired t test showed significant (P < 0.001) decrease or improvement of 63.2% at post as compared to pre. In Group B, comparing the pre and post AFLS score, paired t test showed significant (P < 0.001) decrease or improvement of 58.8% at post as compared to pre. Further, comparing the pre to post mean decrease or improvement in AFLS score of two groups, Student's t test showed similar (P > 0.05) improvement between the two groups though it was 16.7% higher in Group A as compared to Group B. CONCLUSION: Study found both the treatments equally effective in the management of ageing skin after 6 months of treatment. However, study needs further validation on larger sample size, varied age groups and male gender. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

5.
Langmuir ; 2023 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-36631941

RESUMO

Epoxies, their derivatives, and composites, due to superior specific strength, are preferred for many potential applications in the field of automobiles, aircraft, bonding of structures, protective coatings, water filtration, etc. As structural members in automobiles and aircraft, the epoxy-based components are exposed to various static/dynamic mechanical loading conditions during their service life. The interfacial interactions, between the matrix and reinforcement, greatly affect the final properties of the composites. The present study demonstrates that the solvent used for the preparation of the composite can also contribute toward interfacial interactions. Present research systematically finds out a suitable solvent (acetone) and reinforcement type [multi-walled carbon nanotube (CNT)] for epoxy [bisphenol-A (BPA)] nanocomposites. Dynamic and static strengths of the as-prepared epoxy-CNT nanocomposites were carefully investigated. Well dispersed CNTs in acetone were mixed with an ester of BPA under constant magnetic stirring conditions. Samples of tablet shape were prepared for testing static and dynamic performance of the composite using a nano-indentation technique. Considerable enhancement by 55 and 22% in the static elastic modulus and hardness of BPA-CNT composites, respectively, was observed (compared with that of pristine BPA). The storage modulus and tan-delta of the nanocomposites were also improved by 14 and 46%, respectively. Improved static and dynamic performance, reported in this work, significantly enhances the scope of utilization of BPA-CNT-based nanocomposites under severe static and dynamic loading conditions simultaneously. Static and dynamical analysis of CNT-reinforced epoxy provides more realistic understanding of the mechanical performance of the nanocomposite. Density functional theory (using QuantumATK software) simulations were performed to investigate and identify the alterations in the atomic morphology of CNTs during interfacial interaction with the acetone molecule and epoxy matrix. The calculations predicted that CNTs with mild defects as compared to pristine CNTs were better suited for synthesis of the nanocomposite and also assisted in a homogeneous distribution of CNTs in BPA without aggregation (with acetone as the solvent). Furthermore, structural changes in CNTs after treatment with BPA and the curing agent and the role of defects are studied in detail.

6.
J Obstet Gynaecol Can ; 45(5): 309-313, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36868352

RESUMO

Although laparoscopy has classically been defined as the gold standard for diagnosis of endometriosis, there is now a strong recommendation for the use of advanced imaging in diagnosing the disease. In addition to playing a crucial role in the diagnosis of endometriosis, advanced imaging is also essential for assisting gynaecologic surgeons in planning the surgical management of complex cases of deep endometriosis. This case demonstrates a metaverse of high-level imaging modalities, including advanced ultrasound and magnetic resonance, which were further enhanced with medical virtual reality and used for the assessment of a patient seen in an outpatient tertiary care gynaecology clinic.


Assuntos
Endometriose , Laparoscopia , Feminino , Humanos , Endometriose/diagnóstico por imagem , Endometriose/cirurgia , Ultrassonografia/métodos , Laparoscopia/métodos , Imageamento por Ressonância Magnética/métodos
7.
J Obstet Gynaecol Can ; 45(10): 102167, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37315785

RESUMO

OBJECTIVES: Describe the current practice of Canadian obstetricians-gynaecologists in managing placenta accreta spectrum (PAS) disorders from suspicion of diagnosis to delivery planning and explore the impact of the latest national practice guidelines on this topic. METHODS: We distributed a cross-sectional bilingual electronic survey to Canadian obstetricians-gynaecologists in March-April 2021. Demographic data and information on screening, diagnosis, and management were collected using a 39-item questionnaire. The survey was validated and pretested among a sample population. Descriptive statistics were used to present the results. RESULTS: We received 142 responses. Almost 60% of respondents said they had read the latest Society of Obstetricians and Gynaecologists of Canada clinical practice guideline on PAS disorders, published in July 2019. Nearly 1 in 3 respondents changed their practice following this guideline. Respondents highlighted the importance of 4 key points: (1) limiting travel to thereby remain close to a regional care centre, (2) preoperative anemia optimization, (3) performance of cesarean-hysterectomy leaving the placenta in situ (83%), (4) access via midline laparotomy (65%). Most respondents recognized the importance of perioperative blood loss reduction strategies such as tranexamic acid and perioperative thromboprophylaxis via sequential compression devices and low-molecular-weight heparin until full mobilization. CONCLUSIONS: This study demonstrates the impact of the Society of Obstetricians and Gynaecologists of Canada's PAS clinical practice guideline on management choices made by Canadian clinicians. Our study highlights the value of a multidisciplinary approach to reducing maternal morbidity in individuals facing surgery for a PAS disorder and the importance of regionalized care that is resourced to provide maternal-fetal medicine and surgical expertise, transfusion medicine, and critical care support.


Assuntos
Placenta Acreta , Tromboembolia Venosa , Gravidez , Feminino , Humanos , Placenta Acreta/diagnóstico , Placenta Acreta/terapia , Placenta Acreta/epidemiologia , Anticoagulantes , Estudos Transversais , Canadá , Histerectomia/métodos , Estudos Retrospectivos , Placenta
8.
Women Health ; 63(5): 370-382, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37291687

RESUMO

The Heavy menstrual bleeding: Evidence-based Learning for best Practice (HELP) Group developed an educational website about heavy menstrual bleeding (HMB). The "HMB improving Outcomes with Patient counseling and Education" (HOPE) project examined the website's impact on women's knowledge, confidence, and consultations with healthcare providers (HCPs). HOPE was a quantitative online survey of gynecologists and women with HMB in Brazil. After an initial consultation, patients had unlimited access to the website and completed a survey. HCPs also completed a survey about the sconsultation. After a second consultation, HCPs and patients completed another survey. HCP surveys assessed their perception of patients' awareness, understanding, and willingness to discuss HMB. Patient surveys assessed their knowledge, experience, and confidence in discussing HMB. Forty HCPs recruited 400 women with HMB. Based on HCP perceptions at the first consultation, 18 percent of patients had "good knowledge" or "very good knowledge" of HMB, increasing to 69 percent after patients had visited the website. Before and after visiting the website, 34 percent and 69 percent of patients, respectively, regarded their HMB knowledge as "goo.d" Additionally, 17 percent of women reported their anxiety as "highest" during the first consultation; this decreased to 7 percent during the second consultation. After visiting the HELP website, patients' knowledge of HMB improved and they were less anxious.


Assuntos
Menorragia , Médicos , Humanos , Feminino , Menorragia/psicologia , Inquéritos e Questionários , Brasil
9.
Inflammopharmacology ; 31(1): 119-128, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36414831

RESUMO

In prosperous countries, autoimmune illnesses affect minimum 7% of the community. Rheumatoid Arthritis (RA) as an autoimmune illness is thought to be induced through a variety of genomic, physiological, and biological factors. Many experts in the field of nanomedicine have looked to stem cells as a viable strategy to repair human tissue; however, exosomes have demonstrated greater potential in recent years. Exosomes, produced from stem cells in particular, have exhibited a high propensity to give therapeutic effects. To resist local cellular stress, they are secreted in a paracrine manner from cells. As a result, exosomes produced from stem cells can provide enormous health uses. If treatment is not given, autoantibodies produce synovial inflammation and arthritis, which can lead to chronic inflammation, and impairment. Exosomes could be administered for the treatment of RA, by acting as therapeutic vectors. Exosomes are murine extracellular vesicles that influence biological mechanisms and signal transduction by transporting genetic and protein components. Diseases like RA and bone fractures could be treated using cell-free therapeutic strategies if exosomes could be isolated from stem cells efficiently and packaged with specific restorative substances. To get to this position, many breakthroughs must be achieved, and the following review summarises the most recent developments in stem cell-derived exosomes, with a focus on the important literature on exosome dynamics in RA.


Assuntos
Artrite Reumatoide , Exossomos , Humanos , Animais , Camundongos , Exossomos/genética , Exossomos/metabolismo , Artrite Reumatoide/metabolismo , Inflamação/metabolismo , Autoanticorpos , Transdução de Sinais
10.
Molecules ; 28(6)2023 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-36985782

RESUMO

The liver is a vital organ that plays a crucial role in the physiological operation of the human body. The liver controls the body's detoxification processes as well as the storage and breakdown of red blood cells, plasma protein and hormone production, and red blood cell destruction; therefore, it is vulnerable to their harmful effects, making it more prone to illness. The most frequent complications of chronic liver conditions include cirrhosis, fatty liver, liver fibrosis, hepatitis, and illnesses brought on by alcohol and drugs. Hepatic fibrosis involves the activation of hepatic stellate cells to cause persistent liver damage through the accumulation of cytosolic matrix proteins. The purpose of this review is to educate a concise discussion of the epidemiology of chronic liver disease, the pathogenesis and pathophysiology of liver fibrosis, the symptoms of liver fibrosis progression and regression, the clinical evaluation of liver fibrosis and the research into nanotechnology-based synthetic and herbal treatments for the liver fibrosis is summarized in this article. The herbal remedies summarized in this review article include epigallocathechin-3-gallate, silymarin, oxymatrine, curcumin, tetrandrine, glycyrrhetinic acid, salvianolic acid, plumbagin, Scutellaria baicalnsis Georgi, astragalosides, hawthorn extract, and andrographolides.


Assuntos
Cirrose Hepática , Hepatopatias , Humanos , Cirrose Hepática/etiologia , Fígado/patologia , Hepatopatias/patologia , Fibrose , Células Estreladas do Fígado/patologia , Nanotecnologia
11.
Inflammopharmacology ; 31(4): 1577-1588, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37335368

RESUMO

Rheumatoid arthritis is a systemic chronic polyarticular autoimmune disorder of joints and joint membrane mainly affecting feet and hands. The pathological manifestation of the disease includes infiltration of immune cells, hyperplasia of the lining of synovium, formation of pannus and bone and cartilage destruction. If left untreated, the appearance of small focal necrosis, adhesion of granulation, and formation of fibrous tissue on the surface of articular cartilage is noted. The disease primarily affects nearly 1% of the population globally, women being more affected than men with a ratio 2:1 and can initiate regardless of any age. The synovial fibroblast in rheumatoid arthritis individuals exhibits an aggressive phenotype which upregulates the manifestation of protooncogenes, adhesive compounds, inflammatory cytokines and matrix-deteriorating enzymes. Apart from the inflammatory effects of cytokines, chemokines are also noted to induce swelling and pain in arthritic individuals by residing in synovial membrane and forming pannus. The current treatment of rheumatoid arthritis includes treatment with non-steroidal anti-inflammatory drugs, disease-modifying antirheumatic drugs, treatment with biologics such as inhibitors of TNF-α, interleukins, platelet activating factor, etc. which provides significant relief from symptoms and aids in management of the disease. The current review highlights the pathogenesis involved in the onset of rheumatoid arthritis and also covers epigenetic, cellular and molecular parameters associated with it to aid better and advanced therapeutic approaches for management of the debilitating disease.


Assuntos
Antirreumáticos , Artrite Reumatoide , Feminino , Humanos , Membrana Sinovial , Antirreumáticos/farmacologia , Antirreumáticos/uso terapêutico , Fator de Necrose Tumoral alfa/metabolismo , Epigênese Genética
12.
Molecules ; 28(4)2023 Feb 13.
Artigo em Inglês | MEDLINE | ID: mdl-36838751

RESUMO

Herbal drugs have been attracting much scientific interest in the last few decades and nowadays, phytoconstituents-based research is in progress to disclose their unidentified medicinal potential. Daidzein (DAI) is the natural phytoestrogen isoflavone derived primarily from leguminous plants, such as the soybean and mung bean, and its IUPAC name is 4',7-dihydroxyisoflavone. This compound has received great attention as a fascinating pharmacophore with remarkable potential for the therapeutic management of several diseases. Certain pharmacokinetic properties of DAI such as less aqueous solubility, low permeability, and poor bioavailability are major obstacles restricting the therapeutic applications. In this review, distinctive physicochemical characteristics and pharmacokinetics of DAI has been elucidated. The pharmacological applications in treatment of several disorders like oxidative stress, cancer, obesity, cardiovascular, neuroprotective, diabetes, ovariectomy, anxiety, and inflammation with their mechanism of action are explained. Furthermore, this review article comprehensively focuses to provide up-to-date information about nanotechnology-based formulations which have been investigated for DAI in preceding years which includes polymeric nanoparticles, solid lipid nanoparticles, nanostructured lipid carrier, polymer-lipid nanoparticles, nanocomplexes, polymeric micelles, nanoemulsion, nanosuspension, liposomes, and self-microemulsifying drug delivery systems.


Assuntos
Isoflavonas , Nanopartículas , Sistemas de Liberação de Medicamentos , Nanotecnologia , Nanopartículas/química , Micelas , Polímeros/química
13.
J Interprof Care ; 37(5): 715-724, 2023 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-36739535

RESUMO

Intraoperative teamwork is vital for patient safety. Conventional tools for studying intraoperative teamwork typically rely on behaviorally anchored rating scales applied at the individual or team level, while others capture narrative information across several units of analysis. This prospective observational study characterizes teamwork using two conventional tools (Operating Theatre Team Non-Technical Skills Assessment Tool [NOTECHS]; Team Emergency Assessment Measure [TEAM]), and one alternative approach (modified-Systems Engineering Initiative for Patient Safety [SEIPS] model). We aimed to explore the advantages and disadvantages of each for providing feedback to improve teamwork practice. Fifty consecutive surgical cases at a Canadian academic hospital were recorded with the OR Black Box®, analyzed by trained raters, and summarized descriptively. Teamwork performance was consistently high within and across cases rated with NOTECHS and TEAMS. For cases analyzed with the modified-SEIPS tool, both optimal and suboptimal teamwork behaviors were identified, and team resilience was frequently observed. NOTECHS and TEAM provided summative assessments and overall pattern descriptions, while SEIPS facilitated a deeper understanding of teamwork processes. As healthcare organizations continue to prioritize teamwork improvement, SEIPS may provide valuable insights regarding teamwork behavior and the broader context influencing performance. This may ultimately enhance the development and effectiveness of multi-level teamwork interventions.


Assuntos
Relações Interprofissionais , Salas Cirúrgicas , Humanos , Equipe de Assistência ao Paciente , Canadá
14.
Biochem Biophys Res Commun ; 589: 234-239, 2022 01 22.
Artigo em Inglês | MEDLINE | ID: mdl-34933198

RESUMO

The effects of nitric oxide modulators (NO-modulators) and antioxidants on acute (RSx1) restraint stress induced endocrine, cellular and oxidative/nitrosative stress markers was studied in Wistar rats. The results of our study revealed that exposure to RS(x1) enhanced malondialdehyde (MDA), heat shock protein (HSP-70), corticosterone, nuclear factor kappa B (NF-κB) levels and suppressed glutathione (GSH), superoxide dismutase (SOD) and total nitrites and nitrates (NOx) levels. NO precursor and NO synthase inhibitors were found to differentially modulate stress mechanisms, by altering NF-κB, HSP-70 and corticosterone levels. l-Ascorbic acid significantly suppressed acute stress induced elevation of NF-κB and HSP-70 levels depicting protective effects, as also evidenced by reversal of elevated plasma corticosterone levels. Therefore, modulation of oxidative and nitrosative pathways, offers an approach in modulating stress induced changes associated with various disorders.


Assuntos
Antioxidantes/farmacologia , Biomarcadores/metabolismo , Sistema Endócrino/metabolismo , Óxido Nítrico/metabolismo , Estresse Psicológico/metabolismo , Doença Aguda , Animais , Arginina/farmacologia , Corticosterona/sangue , Feminino , Glutationa/metabolismo , Proteínas de Choque Térmico HSP70/metabolismo , Masculino , Malondialdeído/metabolismo , NF-kappa B/metabolismo , Nitratos/metabolismo , Óxido Nítrico Sintase/antagonistas & inibidores , Óxido Nítrico Sintase/metabolismo , Nitritos/metabolismo , Ratos Wistar , Restrição Física , Estresse Psicológico/sangue , Superóxido Dismutase/metabolismo
15.
Crit Rev Food Sci Nutr ; 62(19): 5372-5393, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33998910

RESUMO

Rheumatoid arthritis (RA) is a chronic, inflammatory and autoimmune disorder which is mainly characterized by inflammation in joints, bone erosions and cartilaginous destruction that leads to joint dysfunction, deformation, and/or permanent functional impairment. The prevalence of RA is increasing, incurring a considerable burden on healthcare systems globally. The exact etiology of RA is unknown, with various pathways implicated in its pathophysiology. Non-steroidal anti-inflammatory drugs (NSAIDs) including celecoxib, diclofenac and ibuprofen, disease-modifying anti-rheumatic drugs (DMARD) including azathioprine, methotrexate and cyclosporine, biological agents including anakinra, infliximab, and rituximab and immunosuppressants are used for symptomatic relief in patients with RA, but these medications have severe adverse effects such as gastric ulcers, hypertension, hepatotoxicity and renal abnormalities which restrict their use in the treatment of RA; new RA treatments with minimal side-effects are urgently required. There is accumulating evidence that dietary polyphenols may show therapeutic efficacy in RA through their antioxidant, anti-inflammatory, apoptotic, and immunosuppressant activities and modulation of the tumor necrosis factor-α (TNF-α), interleukin (IL)-6, mitogen-activated protein kinase (MAPK), IL-1ß, c-Jun N-terminal kinase (JNK), and nuclear factor κ light-chain-enhancer of activated B cell (NF-κB) pathways. While resveratrol, genistein, carnosol, epigallocatechin gallate, curcumin, kaempferol, and hydroxytyrosol have also been studied for the treatment of RA, the majority of data are derived from animal models. Here, we review the various pathways involved in the development of RA and the preclinical and clinical data supporting polyphenols as potential therapeutic agents in RA patients. Our review highlights that high-quality clinical studies are required to decisively establish the anti-rheumatic efficacy of polyphenolic compounds.


Assuntos
Artrite Reumatoide , Polifenóis , Animais , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Artrite Reumatoide/tratamento farmacológico , Inflamação/tratamento farmacológico , Interleucina-6/metabolismo , Proteínas Quinases Ativadas por Mitógeno/metabolismo , NF-kappa B/metabolismo , Polifenóis/farmacologia , Polifenóis/uso terapêutico
16.
Bioorg Chem ; 121: 105626, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35255350

RESUMO

The aim of this review was to discuss an overview of type 2 diabetes; biology of PTP1B; role of PTP1B in metabolic disorders; and recent updates in the development of PTP1B inhibitors reported in literature since 1994. In this study, extensive literature search was carried out on PTP1B inhibitors of natural as well as synthetic origin in various scientific databases and research articles related to discovery of PTP1B inhibitors were selected for this study. Protein tyrosine phosphatase 1B (PTP1B) is an important therapeutic target for several human diseases including type 2 diabetes, obesity and cancer because of its seminal part as a negative modulator in both insulin and leptin signaling pathways. A large number of molecules of broad chemical diversity were reported as potent and selective PTP1B inhibitors over other protein tyrosine phosphatases. Several of these molecules have shown their potential in the treatment of various human diseases including type 2 diabetes, obesity, inflammation and cancer in various animal models. But only a very limited number of PTP1B inhibitors (including ertiprotafib, trodusquemine and JTT-551) has entered clinical trials and are finally withdrawn owing to their unsatisfactory effectiveness and undesirable adverse effects. Consequently, it is still highly imperative and of great importance to develop potent, highly selective and safe PTP1B inhibitors.


Assuntos
Diabetes Mellitus Tipo 2 , Proteína Tirosina Fosfatase não Receptora Tipo 1 , Animais , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/metabolismo , Inibidores Enzimáticos/química , Inibidores Enzimáticos/farmacologia , Inibidores Enzimáticos/uso terapêutico , Insulina , Obesidade/tratamento farmacológico , Obesidade/metabolismo , Proteína Tirosina Fosfatase não Receptora Tipo 1/metabolismo
17.
Metab Brain Dis ; 37(1): 1-16, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34436747

RESUMO

During the last three decades, recombinant DNA technology has produced a wide range of hematopoietic and neurotrophic growth factors, including erythropoietin (EPO), which has emerged as a promising protein drug in the treatment of several diseases. Cumulative studies have recently indicated the neuroprotective role of EPO in preclinical models of acute and chronic neurodegenerative disorders, including Alzheimer's disease (AD). AD is one of the most prevalent neurodegenerative illnesses in the elderly, characterized by the accumulation of extracellular amyloid-ß (Aß) plaques and intracellular neurofibrillary tangles (NFTs), which serve as the disease's two hallmarks. Unfortunately, AD lacks a successful treatment strategy due to its multifaceted and complex pathology. Various clinical studies, both in vitro and in vivo, have been conducted to identify the various mechanisms by which erythropoietin exerts its neuroprotective effects. The results of clinical trials in patients with AD are also promising. Herein, it is summarized and reviews all such studies demonstrating erythropoietin's potential therapeutic benefits as a pleiotropic neuroprotective agent in the treatment of Alzheimer's disease.


Assuntos
Doença de Alzheimer , Eritropoetina , Fármacos Neuroprotetores , Idoso , Doença de Alzheimer/metabolismo , Peptídeos beta-Amiloides/metabolismo , Eritropoetina/uso terapêutico , Humanos , Fármacos Neuroprotetores/farmacologia , Fármacos Neuroprotetores/uso terapêutico , Placa Amiloide/tratamento farmacológico
18.
J Obstet Gynaecol Can ; 44(1): 11-20.e3, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34481065

RESUMO

OBJECTIVE: Evaluate the quality of information reported online about endometriosis and period pain. METHODS: An online search identified the top 20 websites for 4 search engines (Google, Ask, Bing, Yahoo). Videos, duplicates, and websites not containing information related to endometriosis and period pain were excluded. Three independent authors screened websites and systematically extracted data on website characteristics and on diagnosis and treatment mentions. Website accuracy and completeness were rated for a score out of 15. The Flesch readability ease score (FRES) was used to assess readability. RESULTS: Of 34 websites included, most were news related (44.1%) and health care affiliated (26.5%). Websites with affiliations had significantly higher accuracy scores than those without. Those with references had significantly higher completeness than those without. Non-news-related websites had significantly higher accuracy and completeness than news-related websites. The most commonly reported symptoms were dysmenorrhea (97.1% of websites), infertility (88.2%), and dyspareunia (82.4%). Cancer was mentioned on 41.1% of websites. Diagnostic laparoscopy (91.0%) and ultrasound (88.3%) were the most commonly mentioned diagnostic tools. Commonly reported therapeutics included the oral contraceptive pill (79.4%), laparoscopy (70.6%), non-steroidal anti-inflammatory drugs (NSAIDs; 67.6%), and gonadotropin-releasing hormone (GnRH) agonists (64.7%). Hysterectomy (59.0%) was mentioned more than progestins (53.0%). Overall, 18 of 34 websites (53%) contained 1 or more inaccurate or misleading statements. CONCLUSION: While most websites contained accurate statements, commonly reported misconceptions included an emphasized risk of cancer, lack of use/benefit of ultrasound for diagnosis, and a bias for surgical over medical management, where laparoscopy was mentioned more than first-line medications. This study highlights the importance of directing patients to evidence-based resources.


Assuntos
Informação de Saúde ao Consumidor , Endometriose , Compreensão , Endometriose/diagnóstico , Feminino , Humanos , Internet
19.
J Obstet Gynaecol Res ; 48(9): 2452-2458, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35706346

RESUMO

BACKGROUND: Failure to obtain an office-based endometrial biopsy for abnormal uterine bleeding is not uncommon. Although operating room-based procedures are traditionally considered the gold standard assessment tool in these circumstances, outpatient hysteroscopy is a less invasive, more cost-effective, and safer alternative. However, there is no contemporary Canadian literature on the effectiveness of an outpatient approach for this specific population. OBJECTIVE: We aim to evaluate the effectiveness and outcomes of outpatient hysteroscopy for uterine cavity evaluation for patients who have failed an in-office endometrial biopsy attempt. METHODS: We conducted a retrospective cohort study of all patients referred to an academic outpatient hysteroscopy unit between January 2015 and January 2018, who underwent an outpatient hysteroscopy following failed endometrial biopsy. Data were collected from electronic medical records. RESULTS: Of the 407 consecutive patients who underwent an outpatient hysteroscopic procedure, 68 met inclusion criteria. Postmenopausal bleeding was the most common indication for initial biopsy, and most failures were attributed to cervical stenosis. Outpatient hysteroscopies were successfully completed in 96% of cases (n = 65/68). Failure resulted from either anxiety and discomfort (n = 2), or severe intrauterine adhesions (n = 1). Overall, 10% of patients subsequently required an operating room-based hysteroscopy, either to complete a myomectomy or polypectomy, or to allow general anesthesia. Outpatient hysteroscopy identified endometrial hyperplasia and cancer in 4.5% and 3% of patients, respectively. CONCLUSION: Outpatient hysteroscopy following unsuccessful office endometrial biopsy attempts appears to be a feasible, safe, and cost-effective investigation strategy that may prevent the need for an operating room-based procedure in 90% of cases.


Assuntos
Histeroscopia , Doenças Uterinas , Biópsia/efeitos adversos , Canadá , Endométrio/patologia , Endométrio/cirurgia , Feminino , Humanos , Histeroscopia/métodos , Pacientes Ambulatoriais , Gravidez , Estudos Retrospectivos , Doenças Uterinas/diagnóstico , Doenças Uterinas/patologia , Doenças Uterinas/cirurgia , Hemorragia Uterina/patologia
20.
J Craniofac Surg ; 33(1): e54-e56, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34292237

RESUMO

OBJECTIVES: Superficial temporal artery (STA) is the one of the terminal branches of external carotid artery. Superficial temporal artery divides into frontal and parietal terminal branches. Various types of locoregional flaps can be based on the STA as a pedicle to provide effective and robust cover. In this article, we shall discuss the various applications of STA and its terminal branches as a pedicle for postburn facial reconstruction in our clinical experience of more than 20 years. METHODS: This is a retrospective review of 531 cases of postburn facial reconstruction using STA and one its terminal branches as a pedicle done at Department of Plastic and Reconstructive Surgery, Lok Nayak Hospital, which is tertiary care government hospital in New Delhi for burn care from March 2000 to March 2020. We started use of this flap initially for postburn ear reconstruction cases and slowly expanded our indications over the period of time due to its high vascularity and versatile nature. There were 269 females and 262 males included in this review. RESULTS: We have used STA and one its terminal branches as a pedicle to our advantage with varied indications and excellent results. We had minor complications which were easily manageable with 7 cases of partial flap loss and zero case of total flap loss. We shall discuss all the details in our review. CONCLUSIONS: We wish to conclude that STA and one its terminal branches as a pedicle offers excellent versality and vascularity for postburn facial reconstruction with good long-standing results.


Assuntos
Procedimentos de Cirurgia Plástica , Artérias Temporais , Orelha Externa , Feminino , Humanos , Masculino , Estudos Retrospectivos , Retalhos Cirúrgicos , Artérias Temporais/cirurgia
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