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1.
Niger J Clin Pract ; 25(1): 21-26, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35046190

RESUMO

BACKGROUND: Taping is widely used intervention in various conditions treated by physiotherapist. Neurodevelopmental disorders in children leading to foot abnormality is one of the major concen. As taping is one of the intervention in same the study is focusing taping on pronated feet in the selected age group. AIM: The aim of this study was to investigate whether the kinesiotaping and exercise improve pronated feet in neurodevelopmental disordered (NDD) children. PATIENTS AND METHODS: This was a cross over study, within subjects study evaluating two treatments, kinesio tape, and exercise. Thirty subjects with age group 6-12 years diagnosed with NDD having pronated feet. Subjects were allocated in the two groups. Group 1 included subjects for taping and Group 2 included subjects for exercise. Taping was applied for two consecutive weeks for 5 days per week and then 2 weeks of the window period, which was followed by two consecutive weeks of exercise sessions for 5 days per week. The navicular drop test and Foot Posture Index were measured pre and post treatment. Foot posture index used to examine the posture of foot and navicular drop test. RESULTS AND CONCLUSION: Group 1 (taping) and Group 2 (exercises) showed no significant results as a single entity, whereas there was a small effect seen of the intervention.


Assuntos
Fita Atlética , Transtornos do Neurodesenvolvimento , Criança , Estudos Cross-Over , Exercício Físico , Terapia por Exercício , Humanos
2.
Indian J Exp Biol ; 55(3): 178-83, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30184419

RESUMO

Apple is the most dominating fruit crop of Himachal Pradesh, constituting about 40 per cent of total area under fruit crops and about 90 per cent of the total fruit production. Plant tissue culture has encouraged production of quality planting material which is disease free and true to type. Due to current trends in favour of high density apple plantations and to fulfill the requirement of planting material from the farmers, commercially viable in vitro propagation method of semidwarf clonal apple rootstock Malling 7 (M7) was developed by axillary branching, initially developed from shoot tip explants. A few thousand plants were transferred to field conditions. In order to check any tissue culture induced variation in these long term micropropagated plants, the genetic fidelity was assessed using Random Amplified Polymorphic DNA (RAPD) markers. Out of the 20 primers screened, 12 generated a total of 44 scorable and distinct bands with an average of 3.7 bands per primer. All the banding patterns for each primer were highly uniform and monomorphic across in vitro multiple shoot clusters and field transplanted micropropagated plants as well as comparable to the field grown mother clone from which the cultures had been established. Our results have shown that the micropropagation protocol developed by this study is appropriate and applicable for clonal propagation of apple rootstock M7 on large scale over a long period without any risk of genetic instability.


Assuntos
DNA de Plantas/genética , Malus/genética , Raízes de Plantas/genética , Técnica de Amplificação ao Acaso de DNA Polimórfico/métodos , Agricultura , DNA de Plantas/análise , Malus/crescimento & desenvolvimento , Malus/fisiologia , Raízes de Plantas/crescimento & desenvolvimento , Raízes de Plantas/fisiologia , Técnicas de Cultura de Tecidos
3.
Ann Oncol ; 27(10): 1848-54, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27456297

RESUMO

Over the past three decades, oral human papillomavirus (HPV) has been associated with an increase in the incidence of oropharyngeal squamous cell carcinoma (OPSCC) in several countries. Specialist oncologists in head and neck cancer are observing a wider range of demographics, sexual behaviours, and survival outcomes with their patients. Additionally, there are fewer smokers, consumers of alcohol, or people of lower socioeconomic status than in previous decades. In order to support patients, the European Head and Neck Society's Make Sense Campaign aims to promote best practice in the management of head and neck cancer through the delivery of counselling, psychological assessment, support with the patient experience following HPV-related cancer diagnosis, sexual impact (in terms of communication, behaviour and prevention), facilitating access to educational resources about HPV in head and neck squamous cell carcinoma and OPSCC, and early referral if necessary. New concerns about psychosocial distress and unmet psychosocial needs following diagnosis, therefore, exist throughout the disease and treatment periods. Oncologists treating patients with HPV-related head and neck cancer must integrate new parameters focused on infection risk transmission and sexual topics. The development and dissemination of best practice guidelines through The European Head and Neck Cancer Society Make Sense Campaign will help healthcare professionals to be more confident and resourceful in supporting patients with HPV-related head and neck cancer.


Assuntos
Neoplasias de Cabeça e Pescoço/psicologia , Neoplasias de Cabeça e Pescoço/virologia , Infecções por Papillomavirus/psicologia , Guias de Prática Clínica como Assunto , Gerenciamento Clínico , Guias como Assunto , Neoplasias de Cabeça e Pescoço/epidemiologia , Humanos , Papillomaviridae/patogenicidade , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/virologia , Fatores de Risco
4.
Psychol Med ; 46(1): 27-45, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26370602

RESUMO

The aim of this article is to summarize current evidence regarding alterations in the neuroendocrine stress response system and endocannabinoid system and their relationship in psychotic disorders such as schizophrenia. Exposure to stress is linked to the development of a number of psychiatric disorders including psychosis. However, the precise role of stress in the development of psychosis and the possible mechanisms that might underlie this are not well understood. Recently the cannabinoid hypothesis of schizophrenia has emerged as a potential line of enquiry. Endocannabinoid levels are increased in patients with psychosis compared with healthy volunteers; furthermore, they increase in response to stress, which suggests another potential mechanism for how stress might be a causal factor in the development of psychosis. However, research regarding the links between stress and the endocannabinoid system is in its infancy. Evidence summarized here points to an alteration in the baseline tone and reactivity of the hypothalamic-pituitary-adrenal (HPA) axis as well as in various components of the endocannabinoid system in patients with psychosis. Moreover, the precise nature of the inter-relationship between these two systems is unclear in man, especially their biological relevance in the context of psychosis. Future studies need to simultaneously investigate HPA axis and endocannabinoid alterations both at baseline and following experimental perturbation in healthy individuals and those with psychosis to understand how they interact with each other in health and disease and obtain mechanistic insight as to their relevance to the pathophysiology of schizophrenia.


Assuntos
Endocanabinoides/metabolismo , Sistema Hipotálamo-Hipofisário/metabolismo , Sistemas Neurossecretores/metabolismo , Sistema Hipófise-Suprarrenal/metabolismo , Transtornos Psicóticos/metabolismo , Esquizofrenia/metabolismo , Estresse Psicológico/metabolismo , Humanos
5.
Ann Oncol ; 25(11): 2115-2124, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24608199

RESUMO

Squamous cell carcinoma of the head and neck (SCCHN) is considered a worldwide health care problem. The majority of patients have a history of alcohol abuse and high-level tobacco consumption; however, SCCHN is also associated with exposure to viruses including human papillomavirus (HPV) and Epstein-Barr virus. A major problem facing SCCHN patients is that their disease is often diagnosed at an advanced stage where treatment options may not be curative, or can have severe post-treatment consequences. Confronted with their diagnosis and treatment options, the patient can express a range of emotional reactions which may lead to maladaptive coping. During the SCCHN patient journey, there are a number of stages where emotional support could be offered. A point of contact should be allocated to help patients navigate these stages and deliver practical emotive support (such as encouraging attendance at hospital appointments, compliance with lifestyle modifications and treatment adherence), and to identify if or when more advanced emotive support, in the form of a mental health professional, might be needed. This role might be carried out by a representative within the multidisciplinary health care team (e.g. a nurse). While optimal care is provided by specialist health care professionals, each with specific roles and responsibilities during the patient journey, all are important in screening for emotional distress and providing referral to the mental health team. This article reviews the key points for delivering emotional support to SCCHN patients at each stage of their care. Emotional problems cannot be ignored in SCCHN patients if optimal outcomes are to be achieved, particularly as therapeutic options extend overall survival for many patients. Health care professionals must be able to implement efficient screening for psychological distress to support patient's compliance to their care and treatment. They must also be able to recognize when to refer patients at risk for pharmacological and/or psychotherapeutic interventions.


Assuntos
Carcinoma de Células Escamosas/psicologia , Gerenciamento Clínico , Neoplasias de Cabeça e Pescoço/psicologia , Equipe de Assistência ao Paciente , Carcinoma de Células Escamosas/patologia , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Carcinoma de Células Escamosas de Cabeça e Pescoço , População Branca
6.
Am J Hypertens ; 2024 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-38932512

RESUMO

BACKGROUND: Self-measurement of blood pressure (SMBP) is endorsed by current guidelines for diagnosing and managing hypertension (HTN). We surveyed individuals in a rural healthcare system on practices and attitudes related to SMBP that could guide future practice. METHODS: : Survey questions were sent via an online patient portal to a random sample of 56,275 patients with either BP >140/90 mmHg or cardiovascular care in the system. Questions addressed home blood pressure (BP) monitor ownership, use, willingness to purchase, desire to share data with providers, perceptions of patient education, and patient-centeredness of care. Multivariable logistic regression was used to examine patient characteristics associated with SMBP behaviors. RESULTS: The overall response rate was 12%, and 8.4% completed all questions. Most respondents, 60.9%, owned a BP monitor, while 51.5% reported checking their BP at home the month prior. Among device owners, 45.1% reported receiving instructions on SMBP technique, frequency, and readings interpretation. Only 29.2% reported sharing readings with providers in the last six months, whereas 57.9% said they would be willing to do so regularly. Older age, female sex, and higher income were associated with a higher likelihood of device ownership. Younger age, lower income, and Medicaid insurance were associated with a greater willingness to share SMBP results with providers regularly. CONCLUSIONS: While a significant proportion of respondents performed SMBP regularly, many reported insufficient education on SMBP, and few shared their home BP readings with providers. Patient-centered interventions and telemedicine-based care are opportunities that emerged in our survey that could enhance future HTN care.

7.
Pharmacogenomics J ; 13(2): 181-8, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22158333

RESUMO

The aim of this study was to investigate pharmacogenetic determinants of skin rash associated with epidermal growth factor receptor (EGFR) inhibitor treatment. A total of 109 prospectively sampled cancer patients, receiving the first treatment with an EGFR inhibitor, were genotyped for functional EGFR polymorphisms and tagging variants in genes involved in receptor downstream signaling. Skin rash was absent in 26 (23.9%) patients and associated with shorter overall survival compared with patients presenting skin rash (P=0.005). The EGFR polymorphisms, 497G/A (P=0.008), and the haplotypes of the promoter variants, EGFR-216G/T and -191C/A (P=0.029), were associated with the appearance of skin rash. In addition, a common haplotype in the PIK3CA gene was associated with skin rash (P=0.045) and overall survival (P=0.009). In conclusion, genetic variation within the EGFR gene and its downstream signaling partner PIK3CA might predict EGFR-inhibitor-related skin rash.


Assuntos
Receptores ErbB/genética , Exantema/genética , Neoplasias/genética , Fosfatidilinositol 3-Quinases/metabolismo , Inibidores de Proteínas Quinases/efeitos adversos , Anticorpos Monoclonais/administração & dosagem , Anticorpos Monoclonais/efeitos adversos , Anticorpos Monoclonais Humanizados/administração & dosagem , Anticorpos Monoclonais Humanizados/efeitos adversos , Cetuximab , Classe I de Fosfatidilinositol 3-Quinases , Receptores ErbB/antagonistas & inibidores , Cloridrato de Erlotinib , Exantema/induzido quimicamente , Exantema/patologia , Feminino , Gefitinibe , Estudos de Associação Genética , Haplótipos , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/tratamento farmacológico , Neoplasias/patologia , Panitumumabe , Fosfatidilinositol 3-Quinases/genética , Inibidores de Proteínas Quinases/administração & dosagem , Quinazolinas/administração & dosagem , Quinazolinas/efeitos adversos
8.
Br J Oral Maxillofac Surg ; 61(4): 315-319, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-37088595

RESUMO

Intraoperative CT scanning is the international standard for treating midface fractures as it allows intraoperative assessment of reduction and fixation. To our knowledge, no NHS hospital in the UK has this facility yet due to the financial and logistical burden of its implementation. The aim of this study was to determine if complications including the requirement for a return to theatre (RTT) could have been predicted from the post-fixation CT scan. All treated midface fractures that had presented to a regionalised major trauma centre within two years (01 January 2020 - 31 December 2021) were identified. Those developing complications including RTT were determined. All postoperative CT scans (including those without complication or RTT) were re-analysed with the clinicians blinded to the outcomes to determine the positive predictive value (PPV) and negative predictive value (NPV) of requiring RTT to alter plate position intraoperatively based on CT scan alone. In all, there were eight episodes of unplanned return to theatre, resulting in an overall RTT rate of 8/119 (6.7%). When only analysing patients treated for orbital fractures this RTT rises to 8/40 (20%). Of those eight patients who had a postoperative CT and required RTT, this could have been predicted in 7/8 (87.5%). A total of 16/44 (36.4%) patients that did not have RTT would have additionally been recommended to have the plate position altered based on CT alone. Based upon those that had a CT, the PPV of CT alone being able to predict those requiring RTT was 40.6% and the NPV 96.2%. Our results would suggest intraoperative CT would likely have prevented eight patients requiring RTT in two years and could have improved outcomes in 16 cases. In preventing RTT as well as potentially improving the outcomes of a further 16 cases in maxillofacial surgery, the purchase of an intraoperative CT scanner could yield net savings of £75534-£114990 over two years.


Assuntos
Ossos Faciais , Fixação de Fratura , Fraturas Ósseas , Humanos , Fraturas Ósseas/cirurgia , Valor Preditivo dos Testes , Estudos Retrospectivos , Tomógrafos Computadorizados , Tomografia Computadorizada por Raios X/métodos , Ossos Faciais/lesões , Ossos Faciais/cirurgia , Fixação de Fratura/métodos
9.
Biol Blood Marrow Transplant ; 18(12): 1819-26, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22750645

RESUMO

We investigated the safety and early disease control data for i.v. busulfan (Bu) in combination with clofarabine (Clo) in patients with acute lymphoblastic leukemia undergoing allogeneic hematopoietic stem cell transplantation (SCT). Fifty-one patients (median age, 36 years; range, 20-64 years) received a matched sibling (n = 24), syngeneic (n = 2), or matched unrelated donor transplant (n = 25) for acute lymphoblastic leukemia in first complete remission (n = 30), second complete remission (n = 13), or active disease (n = 8). More than one-half of the patients had a high-risk cytogenetic profile, as defined by the presence of t(9;22) (n = 17), t(4;11) (n = 3), or complex cytogenetics (n = 7). Clo 40 mg/m(2) was given once daily, with each dose followed by pharmacokinetically dosed Bu infused over 3 hours daily for 4 days, followed by hematopoietic SCT 2 days later. The Bu dose was based on drug clearance, as determined by the patient's response to a 32-mg/m(2) Bu test dose given 48 hours before the high-dose regimen. The target daily area under the receiver-operating characteristic curve was 5500 µM/min for patients age <60 years and 4000 µM/min for those age ≥60 years. The regimen was well tolerated, with a 100-day nonrelapse mortality rate of 6%. With a median follow-up of 14 months among surviving patients (range, 6-28 months), the 1-year overall survival, disease-free survival, and nonrelapse mortality rates were 67% (95% confidence interval [CI], 55%-83%), 54% (95% CI, 41%-71%), and 32% (95% CI, 16%-45%), respectively. For patients undergoing SCT in first remission, these respective rates were 74%, 64%, and 25%. Our data indicate that the combination of Clo and Bu provides effective disease control while maintaining a favorable safety profile.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Transplante de Células-Tronco Hematopoéticas/métodos , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamento farmacológico , Leucemia-Linfoma Linfoblástico de Células Precursoras/cirurgia , Nucleotídeos de Adenina/administração & dosagem , Nucleotídeos de Adenina/efeitos adversos , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Arabinonucleosídeos/administração & dosagem , Arabinonucleosídeos/efeitos adversos , Bussulfano/administração & dosagem , Bussulfano/efeitos adversos , Clofarabina , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Condicionamento Pré-Transplante/métodos , Adulto Jovem
10.
Br J Biomed Sci ; 69(1): 18-25, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22558800

RESUMO

The Qiagen QIAsymphony SP is a high-throughput (up to 96 samples per run), fully-automated nucleic acid isolation system. It was implemented in the authors' laboratory to cope with the high demand for pandemic H1N1 influenza testing in 2009. This study evaluated the QIAsymphony SP for viral nucleic acid isolation from quality control materials, pure cultures and various clinical specimens. The effect of varying sample volume on detection sensitivity was investigated using serial 10-fold dilutions of pure viral specimens and target nucleic acids were detected by real-time polymerase chain reaction (PCR) assays. Little variability in detection sensitivity was observed for all the viral targets tested, although variation in cycle threshold values was apparent in some cases. Importantly, pathogens were detectable over a broad concentration range and from diverse clinical specimens. Removal of PCR inhibitors was generally effective, as demonstrated by detection of viral nucleic acids and/or internal controls. The results demonstrate that the QIAsymphony SP is suitable for use in routine virology molecular diagnostics, and provides a high-throughput capacity, which is needed in peak seasons of infection or in centralised laboratories.


Assuntos
DNA Viral/isolamento & purificação , Ácidos Nucleicos/isolamento & purificação , Patologia Molecular/métodos , RNA Viral/isolamento & purificação , Kit de Reagentes para Diagnóstico , Animais , Automação Laboratorial , Células Cultivadas , Embrião de Galinha , DNA Viral/análise , DNA Viral/genética , Cães , Humanos , Vírus da Influenza A Subtipo H1N1/genética , Ácidos Nucleicos/análise , Patologia Molecular/instrumentação , Reação em Cadeia da Polimerase/métodos , Controle de Qualidade , RNA Viral/análise , RNA Viral/genética , Kit de Reagentes para Diagnóstico/normas , Reação em Cadeia da Polimerase em Tempo Real
11.
Br J Oral Maxillofac Surg ; 60(5): 563-569, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35337688

RESUMO

INTRODUCTION: Metastasis to retropharyngeal lymph nodes (RPLN) from oral squamous cell carcinoma is rare and associated with poor outcomes. The poor prognosis of RPLN is multifactorial and includes the clinicopathological aggressiveness of the primary disease and the late presentation. The aim of this systematic review is to assess the evidence on RPLN in patients diagnosed with oral squamous cell carcinoma (OSCC), the quality of the diagnostic modalities and the available treatment options. We aimed to analyse the overall survival of these patients diagnosed with RPLN. METHODS: A systematic review was undertaken according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement guidelines. The initial literature search generated 289 articles. A total of 11 papers satisfied our criteria. Eight papers provided enough data to perform survival analysis and 3 papers compared the diagnostic modalities used in the detection of RPLN. RESULTS: A total of 73 OSCC patients diagnosed with RPLN metastasis were identified. The most common primary tumour subsites included the tongue (20), buccal mucosa (15) and gingiva (11). The cumulative 5-year OS rate was 17.8% while the 2-year overall survival was 35.9%. CONCLUSION: The presence of nodal metastasis is an independent prognostic factor in head and neck cancer. In this study, RPLN metastasis had a poorer prognosis (5 years overall survival is 17.8%) when compared to the survival rate of oral cancer without RPLN metastasis (5 years overall survival is 40%). There was no statistically significant difference between the overall survival in primary RPLN metastasis and recurrent RPLN disease.


Assuntos
Carcinoma de Células Escamosas , Neoplasias de Cabeça e Pescoço , Neoplasias Bucais , Carcinoma de Células Escamosas/patologia , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Linfonodos/patologia , Metástase Linfática/patologia , Neoplasias Bucais/patologia , Prognóstico , Estudos Retrospectivos , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia , Análise de Sobrevida
12.
Br J Oral Maxillofac Surg ; 60(9): 1224-1227, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36180319

RESUMO

Unlike fractures of the remaining facial skeleton, fractures of the non-condylar part of the mandible are invariably treated surgically, with the potential risk of further iatrogenic injury. There is, however, a substantial evidence gap pertaining to the potential non-surgical management of such injuries. The aim of this study was to determine the outcomes of mandibular fractures treated with non-surgical management. All patients with mandibular fractures who were referred to a large regional major trauma service over a one-year period (1 January-31 December 2021) were identified. Those treated with surgery or who sustained fractures of the condylar portion of the mandible were excluded. Of all the patients referred to our unit with mandibular fractures, 34/155 (22%) underwent non-surgical management. In all cases plain radiographs demonstrated minimal displacement. Thirty-two (94%) fractures were unilateral, of which 24 (70%) involved the angle. Two of 34 patients subsequently required open reduction and internal fixation due to pain that did not improve over time, one of whom declined. A minimally extruded tooth in the fracture line, which altered the occlusion in one additional patient, required minimal reduction of the enamel. The remaining patients healed without complication six weeks after injury. Non- surgical management requires careful case selection and regular follow up, so is of value to only a small proportion of patients. Twenty-two per cent of all mandibular fractures were managed non-surgically at our unit in one year, with a 97% success rate, demonstrating the potential utility of this strategy in carefully selected cases.


Assuntos
Fraturas Mandibulares , Humanos , Fraturas Mandibulares/diagnóstico por imagem , Fraturas Mandibulares/cirurgia , Côndilo Mandibular/diagnóstico por imagem , Côndilo Mandibular/cirurgia , Côndilo Mandibular/lesões , Fixação Interna de Fraturas , Mandíbula , Oclusão Dentária , Resultado do Tratamento , Estudos Retrospectivos
13.
Pharm Biol ; 49(7): 696-701, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21599496

RESUMO

CONTEXT: Oxidative stress plays a key role in pathophysiology of many neurodegenerative disorders such as Alzheimer's disease, Parkinson's disease, Huntington's disease, and so on. Although Matricaria recutita L. (Asteraceae), German chamomile, is traditionally used for central nervous system (CNS)-related diseases, its antistress properties have received little attention. OBJECTIVE: The present study evaluated the neuroprotective effect of German chamomile against aluminium fluoride (AlF4⁻)-induced oxidative stress in rats. MATERIALS AND METHODS: The Sprague-Dawley rats of either sex (200-250 g) were selected and grouped as: group I received normal saline; group II received AlF4⁻ (negative control); groups III, IV, and V received 100, 200, and 300 mg/kg, orally, German chamomile methanol extract (GCME) along with AlF4⁻; and group VI received quercetin (25 mg/kg, i.p.) + AlF4⁻, respectively. After 10 days treatment with GCME, oxidative stress was induced by administering AlF4⁻ through drinking water for 7 days. Then, the protective antioxidant enzyme levels were measured and the histopathological studies were carried out. RESULTS: The GCME showed dose-dependent neuroprotective activity by significant decrease in lipid peroxidation (LPO) and increase in the superoxide dismutase (SOD), catalase (CAT), glutathione (GSH), and total thiol levels in extract-treated animals as compared with negative control group (P < 0.001). The histopathological studies also revealed the potent neuroprotective action of German chamomile against oxidative brain damage. CONCLUSION: The present study for the first time shows potent neuroprotective activity of the methanol extract of German chamomile against AlF4⁻-induced oxidative stress in rats.


Assuntos
Matricaria/química , Fármacos Neuroprotetores/farmacologia , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/farmacologia , Administração Oral , Compostos de Alumínio/toxicidade , Animais , Antioxidantes/metabolismo , Encéfalo/efeitos dos fármacos , Encéfalo/patologia , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Feminino , Fluoretos/toxicidade , Masculino , Fármacos Neuroprotetores/administração & dosagem , Fármacos Neuroprotetores/isolamento & purificação , Extratos Vegetais/administração & dosagem , Ratos , Ratos Sprague-Dawley
14.
Br J Oral Maxillofac Surg ; 59(3): 320-328, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33280945

RESUMO

This second part explores perceptions and understanding of clinical performance, turnaround, and costs for printed titanium implants or plates in common procedures, evaluating both 'in-house' and 'outsourced' CAD-CAM pathways. A cross-sectional study, supported by the British Association of Oral and Maxillofacial Surgeons (BAOMS) and a national trainee-led recruitment team, was conducted over 14 weeks. A total of 132 participants took part (demographic data is reported in Part I). For fibular-flap mandibular reconstruction, most participants (69% - 91%) perceived printed titanium as superior to intraoperatively or preoperatively hand-bent plates for surgical duration, accuracy, dental restorability, and aesthetics. There was less agreement about complications and plate-failure risks. Most perceived printed plates to be superior to traditional wafer-based maxillary osteotomy for surgical duration (61%) and maxillary positioning (60%). For orbital floor repair, most perceived improvements in surgical duration (83%, especially higher-volume operators p=0.009), precision (84%), and ease of placement (69%). Rarely (less than 5%) was any outcome rated inferior to traditional techniques for any procedure. Perceived turnaround times and costs were variable, but the greatest consensus was for two-segment fibular-flap reconstructions and orbital floor repair. Industry estimates were generally consistent between two company representatives, but manufacturing-only costs differed when using in-house (departmental) designers. Costs and turnaround times are questionable barriers since few understand 'real-world' figures. Designing in-house can dramatically alter costs. Improved accuracy and surgical duration are common themes but biomechanical benefits are less-well understood. This study paints a picture of the potentially routine applications and benefits of printed titanium, capacity for uptake, understanding amongst surgeons, and areas for improvement.


Assuntos
Procedimentos de Cirurgia Plástica , Cirurgia Assistida por Computador , Estudos Transversais , Estética Dentária , Humanos , Impressão Tridimensional , Titânio , Reino Unido
15.
Br J Oral Maxillofac Surg ; 59(3): 312-319, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33280946

RESUMO

This first part of a two-part study examines perceived applications for and barriers to using printed titanium in light of current caseloads, funding pathways, and use of digital planning. It aims to demonstrate the scope for printed titanium in modern practice and to guide industry about the needs of UK surgeons. A cross-sectional study over 14 weeks was performed electronically with support from the British Association of Oral and Maxillofacial Surgeons (BAOMS) and a national trainee-led recruitment team. Ethics approval was obtained at the lead centre. A total of 132 participants joined the study (70% consultants, 25% specialty registrars, and 5% other), approximating a 29% response rate from consultant/registrar BAOMS members throughout mainland UK. Eighty-eight per cent used CAD-CAM design, with highly variable funding/access, design/manufacturing workflows (in-house/outsourced). Eighty-eight per cent were involved with trauma, 61% with orthognathic, and 52% with oncology-reconstruction surgery. Favourite applications for printed titanium were orbital floor repair (89%) and free-flap jaw reconstruction (87%). Most participants also cited maxillary/zygomatic osteotomies and cranioplasty (range 61%-73%). Although a popular application (78%), the evidence base in temporomandibular joint surgery is limited. Those performing orthognathic surgery perceived more indications than those who did not (p=0.013). Key barriers included cost, turnaround time and logistics, and the need to be trained in traditional techniques. Printed titanium was useful for both common and niche procedures, but was specifically limited in emergency trauma. Most surgeons had experience in CAD-CAM surgery but technical understanding appeared unclear. Limiting factors included variable funding and production pathways, perceived costs, and logistics, but in-house design can minimise them. In part II, we quantify perceived benefits and limitations and whether surgeons' understanding and knowledge are sufficient to rationalise them.


Assuntos
Implantes Dentários , Procedimentos de Cirurgia Plástica , Cirurgia Assistida por Computador , Desenho Assistido por Computador , Estudos Transversais , Humanos , Impressão Tridimensional , Titânio , Reino Unido
16.
Diabetes Obes Metab ; 12(12): 1106-12, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20977583

RESUMO

AIM: The therapeutic efficacy of oral hypoglycaemic drugs varies between individuals, and pharmacogenetic factors contribute to this variability. The Gly972Arg polymorphism in the insulin receptor substrate-1 (IRS-1) has been shown to play a role in insulin signal transduction and therapeutic failure to sulphonylurea drugs. METHODS: We studied the association between the IRS-1 polymorphism and the haemoglobin A1c (HbA1c) level in diabetic patients treated with insulinotropic versus non-insulinotropic hypoglycaemic drugs as a marker for the efficacy of an antidiabetic treatment. Genotyping of the IRS-1 Arg(972) variant was performed in type 2 diabetes patients treated with either sulphonylurea drugs, glinides or insulin or with metformin, acarbose or glitazones using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. RESULTS: Significantly higher HbA1c levels were observed in carriers of the Arg(972) variant after treatment with insulinotropic drugs compared to wild-type carriers (8.3 vs. 7.6%, p = 0.005, independent t-test). Furthermore, patients with secondary failure to insulinotropic hypoglycaemic drugs switching finally to insulin showed even higher HbA1c levels in carriers of Arg(972) compared to wild-type (8.7 vs. 7.6%, p = 0.005, independent t-test). CONCLUSIONS: Thus, we were able to replicate the earlier findings of an association between the IRS-1 Arg(972) variant and secondary failure to sulphonylurea drugs, and further observed a general association between HbA1c and this polymorphism in type 2 diabetes patients treated with insulinotropic hypoglycaemic drugs but not with metformin.


Assuntos
Diabetes Mellitus Tipo 2/genética , Hemoglobinas Glicadas/genética , Hipoglicemiantes/uso terapêutico , Proteínas Substratos do Receptor de Insulina/genética , Polimorfismo Genético/genética , Idoso , Diabetes Mellitus Tipo 2/tratamento farmacológico , Feminino , Humanos , Proteínas Substratos do Receptor de Insulina/efeitos dos fármacos , Masculino
17.
J Clin Pediatr Dent ; 35(1): 89-94, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21189771

RESUMO

From the Department of Dental Specialties, Birmingham Children's Hospital. This case study describes a rare case of oral carcinoma cuniculatum in a 7-year-old female. She presented with an enlarged mass of the anterior maxilla arising from the gingiva. An anterior maxillectomy with immediate prosthetic replacement and obturation of the residual defect were carried out. The management of this case was challenging given the rare nature of the disease, unclear etiology, the patient's young age and the mutilating effects of surgery. The treatment involved a large multidisciplinary team. The provision of obturators was particularly difficult due to poor patient compliance and the extent of surgery carried out in a growing child. Oral cancer in children under 15 years old is extremely rare and this is the youngest case of oral carcinoma cuniculatum reported in the literature.


Assuntos
Carcinoma de Células Escamosas/diagnóstico , Neoplasias Gengivais/diagnóstico , Neoplasias Maxilares/diagnóstico , Criança , Arco Dental/cirurgia , Planejamento de Dentadura , Prótese Parcial Removível , Diagnóstico Diferencial , Feminino , Seguimentos , Humanos , Maxila/cirurgia , Invasividade Neoplásica , Obturadores Palatinos , Equipe de Assistência ao Paciente
18.
J R Army Med Corps ; 156(2): 110-3, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20648950

RESUMO

The maxillofacial injuries sustained by British troops requiring aeromedical evacuation to the United Kingdom are almost exclusively treated at The Royal Centre for Defence Medicine in Birmingham. As a result the Maxillofacial Department has collectively gained extensive experience in the management of ballistic injuries. In many cases the most successful outcomes have been achieved by using traditional strategies combined with contemporary techniques. This paper will highlight the types of injuries sustained and discuss some cases that typify those the department has managed.


Assuntos
Traumatismos por Explosões/complicações , Fixadores Externos , Técnicas de Fixação da Arcada Osseodentária , Fraturas Maxilomandibulares/etiologia , Fraturas Maxilomandibulares/cirurgia , Militares , Campanha Afegã de 2001- , Traumatismos por Explosões/diagnóstico por imagem , Transplante Ósseo , Implantes Dentários , Humanos , Fraturas Maxilomandibulares/diagnóstico por imagem , Masculino , Radiografia , Fratura do Crânio com Afundamento/complicações , Fratura do Crânio com Afundamento/diagnóstico por imagem , Lesões dos Tecidos Moles/cirurgia
19.
Br J Oral Maxillofac Surg ; 58(2): 231-233, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31761569

RESUMO

Storiform collagenoma (also called sclerotic fibroma) is uncommon, occurs as a cutaneous fibrous neoplasm, and is particularly rare in mucosal tissue in the head and neck. We describe an unexpected diagnosis in the oral cavity. Histopathological examination showed a proliferation of fibrous tissue, which was well circumscribed but unencapsulated, with thick laminated bundles of eosinophilic collagen that exhibited a storiform or "whorled" pattern. First described by Weary et al in 1972, storiform collagenoma is a marker for Cowden's disease or PTEN hamartoma tumour syndrome. Identification of other synchronous lesions should prompt chromosomal analysis for a mutation in the PTEN gene on chromosome 10q23.


Assuntos
Fibroma , Síndrome do Hamartoma Múltiplo , Neoplasias Cutâneas , Colágeno , Humanos , Mucosa Bucal
20.
Br J Oral Maxillofac Surg ; 58(10): 1261-1267, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32839032

RESUMO

OMFS training is perceived as a long and expensive pathway although papers have shown it compares favourably with other surgical specialties. Every OMFS clinician has a vested interest and duty continually to improve the quality of training and minimise costs, especially to trainees at junior levels. Any serious proposal to fundamentally change the format of training, must be given due consideration by all stakeholders. In 2016, a British Medical Journal article whose authors included the BAOMS President of that year and OMFS Specialty Advisory Committee (SAC) Chair, posed the question - should the future of OMFS training revert to single dental degree, change to single medical degree - or continue as a dual degree specialty? The BMJ publication was discussed at the British Association of Oral and Maxillofacial Surgeons (BAOMS) Council in March 2016 and all present unanimously supported the dual degree pathway. Later that year a formal proposal was made by the BAOMS immediate past President that training in the UK change to single medical degree 'Maxillofacial Surgery' similar to the training in Spain, France or Italy. Evidence around the risks and benefits of making this change to OMFS training was assembled and reviewed by BAOMS Council in March 2017. BAOMS Council once again unanimously supported continuing OMFS as a dual degree specialty with the observation that the quality of patient care which this training provided was the specialty's Unique Selling Point or USP. The requirement for both degrees to provide care for OMFS patients had been confirmed by external scrutiny on two separate occasions by the responsible regulators. In this paper, we outline the key steps to be considered when making major changes in the OMFS training pathways using this event as an example and the suggestion that those proposing changes should assemble and present evidence to support their proposal using the template provided.


Assuntos
Cirurgia Bucal , Humanos , Itália , Cirurgiões Bucomaxilofaciais , Estudos Retrospectivos , Reino Unido
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