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Acromioclavicular joint (ACJ) reconstruction using artificial ligaments is a common surgical treatment for Rockwood grade III or higher injuries. These techniques use bone tunnels in the clavicle and coracoid to insert the Tightrope implants. This multicenter retrospective study compares long term radiographic follow up of clavicular tunnel widening in two groups of patients with high-grade ACJ injury who underwent reconstruction using two different surgical techniques. The first group of 23 patients underwent an arthroscopic single clavicular tunnel ACJ reconstruction. The second group of 23 patiënts underwent an open double clavicular tunnel reconstruction. Inclusion criteria are Rockwood grade III or higher injury and minimum 18 months of follow-up. Exclusion criteria are distal clavicle fracture and additional stabilization techniques. Radiographic results were measured on anteroposterior shoulder radiographs taken at the first and last follow-up. Clavicular tunnel widening is the main outcome measurement. Secondary outcomes are heterotopic ligament calcifications, migration of buttons, tunnel fracture and loss of acromioclavicular reduction. The mean clavicular tunnel widening in the single clavicular tunnel technique is 1.91 mm. In the double clavicular tunnel technique, the widening of the medial tunnel is 2.52 mm and 3.59 mm in the lateral tunnel. The difference in widening between the single tunnel and the lateral tunnel is significant (p=0.003). A very clear observation on all follow-up X-rays was a reorientation of the clavicular tunnels towards the coracoid. The double clavicular tunnel technique has more tunnel widening in both tunnels compared to the single bundle technique.
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Articulação Acromioclavicular , Clavícula , Humanos , Articulação Acromioclavicular/cirurgia , Articulação Acromioclavicular/lesões , Articulação Acromioclavicular/diagnóstico por imagem , Clavícula/cirurgia , Clavícula/lesões , Clavícula/diagnóstico por imagem , Estudos Retrospectivos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Procedimentos de Cirurgia Plástica/métodos , Artroscopia/métodos , Radiografia/métodosRESUMO
We present a patient with poikiloderma, severe osteoporosis and a mild intellectual disability. At the age of 9 years, this patient was proposed to suffer from a novel disease entity designated as calcinosis cutis, osteoma cutis, poikiloderma and skeletal abnormalities (COPS) syndrome. At the age of 35, he was diagnosed with Hodgkin's lymphoma. Recently, biallelic pathogenic variants in the RECQL4 gene were detected (c.1048_1049delAG and c.1391-1G>A), confirming a diagnosis of Rothmund-Thomson syndrome (RTS). In the brother of this patient, who had a milder phenotype, a similar diagnosis was made. CONCLUSION: We conclude that COPS syndrome never existed as a separate syndrome entity. Instead, osteoma cutis may be regarded as a novel feature of RTS, whereas mild intellectual disability and lymphoma may be underreported parts of the phenotype. What is new: ⢠Osteoma cutis was not a known feature in Rothmund-Thomson patients. ⢠Intellectual disability may be considered a rare feature in RTS; more study is needed. What is known: ⢠RTS is a well-described syndrome caused by mutations in the RECQL4 gene. ⢠Patients with RTS frequently show chromosomal abnormalities like, e.g. mosaic trisomy 8.
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Síndrome de Rothmund-Thomson/diagnóstico , Adulto , Doenças Ósseas Metabólicas/diagnóstico , Osso e Ossos/anormalidades , Calcinose/diagnóstico , Cromossomos Humanos Par 8 , Diagnóstico Tardio , Humanos , Deficiência Intelectual/diagnóstico , Linfoma não Hodgkin/diagnóstico , Masculino , Ossificação Heterotópica/diagnóstico , Osteoporose/diagnóstico , Dermatopatias Genéticas/diagnóstico , Síndrome , TrissomiaRESUMO
The 17th annual Western Canadian Gastrointestinal Cancer Consensus Conference (wcgccc) was held in Edmonton, Alberta, 11-12 September 2015. The wcgccc is an interactive multidisciplinary conference attended by health care professionals from across Western Canada (British Columbia, Alberta, Saskatchewan, and Manitoba) who are involved in the care of patients with gastrointestinal cancer. Surgical, medical, and radiation oncologists; pathologists; radiologists; and allied health care professionals participated in presentation and discussion sessions for the purposes of developing the recommendations presented here. This consensus statement addresses current issues in the management of gastric cancer.
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The 16th annual Western Canadian Gastrointestinal Cancer Consensus Conference was held in Saskatoon, Saskatchewan, September 4-5, 2014. The Consensus Conference is an interactive, multidisciplinary event attended by health care professionals from across western Canada (British Columbia, Alberta, Saskatchewan, and Manitoba) involved in the care of gastrointestinal cancer. Surgical, medical, and radiation oncologists; pathologists; radiologists; and allied health care professionals participated in presentation and discussion sessions for the purposes of developing the recommendations presented here. This consensus statement addresses current issues in the management of colorectal cancer.
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BACKGROUND: Concurrent chemoradiation with fluorouracil (5fu) and mitomycin C (mmc) is standard treatment for anal canal carcinoma (acc). The current protocol in Alberta is administration of 5fu and mmc during weeks 1 and 5 of radiation. However, administration of the second bolus of mmc has been based largely on centre preference. Given limited published data on outcomes with different mmc regimens, our objective was to compare the efficacy and toxicity of 1 compared with 2 cycles of mmc in acc treatment. METHODS: Our retrospective study evaluated 169 acc patients treated with radical chemoradiotherapy between 2000 and 2010 at two tertiary cancer centres. All patients were treated with 2 cycles of 5fu and with 1 cycle (mmc1) or 2 cycles (mmc2) of mmc. Acute toxicities, disease-free (dfs) and overall survival (os) were analyzed. RESULTS: Baseline demographics, performance status, and stage were similar in the groups of patients who received mmc1 (52%) and mmc2 (48%). Before treatment, median hematologic parameters were comparable, except for white blood cell count, which was higher in the mmc2 group, but within normal range. The 5-year os and dfs were similar (75.1% and 54.2% for mmc1 vs. 70.7% and 44.2% for mmc2, p = 0.98 and p = 0.63 respectively). On multivariate analysis, mmc2 was the factor most strongly associated with specific acute toxicities: grade 3+ leukopenia (hazard ratio: 4.82; p < 0.01), grade 3+ skin toxicity (hazard ratio: 4.76; p < 0.001), and hospitalizations secondary to febrile neutropenia (hazard ratio: 9.91; p = 0.001). CONCLUSIONS: In definitive chemoradiotherapy for acc, 1 cycle of mmc appears to offer outcomes similar to those achieved with 2 cycles, with significantly less acute toxicity.
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INTRODUCTION: Rheumatoid arthritis (RA) is usually treated with disease modifying antirheumatic drugs (DMARDs), including biological DMARDs (bDMARDs) and more recently, Janus kinase inhibitors (JAKi). Randomized trials suggest similar infection risks for JAKi and bDMARDs, but real-world data are scarce. METHODS: From a nationally representative prescription database, adult RA patients starting a new JAKi or bDMARD between August 1st, 2018, and January 31st, 2021, were included. Prescriptions of antibiotic, antiviral or antifungal medication were used as proxy for infections. Infection incidence rates (IR) were compared between JAKi and bDMARDs and infection risks were estimated using multilevel Poisson regression adjusted for follow-up time and potential confounders and stratified for age < 65 and ≥ 65 years. RESULTS: In 14,989 patients, we identified 20,050 treatment episodes with either JAKi or bDMARDs. The infection IR was significantly higher in JAKi (48/100 patient years) compared bDMARDs (35/100 patient years, adjusted incidence rate ratio (IRR) 1.22, 95% CI 1.12-1.33). More herpes zoster infections were seen in JAKi compared to bDMARDs (adjusted IRR 2.65, 95% CI 1.94-3.60). No significant differences in infection IRs were found comparing JAKi baricitinib and tofacitinib. In older patients, infection IRs were higher, but IRRs were similar between age groups. CONCLUSION: In comparison to bDMARDs, JAKi are associated with a slightly higher infection risk and a higher risk of herpes zoster specifically. In older patients, infection IRs are higher but similar infection risks for JAKi and bDMARDs are observed. No differences in infection risk between tofacitinib and baricitinib were found. Key Points ⢠Compared to bDMARDs, JAKi are associated with a slightly higher infection risk for all ages ⢠An increased risk of herpes zoster in patients who use JAK inhibitors was confirmed ⢠No significant differences in infection incidence were found between tofacitinib and baricitinib.
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Antirreumáticos , Artrite Reumatoide , Azetidinas , Inibidores de Janus Quinases , Piperidinas , Purinas , Pirazóis , Pirimidinas , Sulfonamidas , Humanos , Masculino , Inibidores de Janus Quinases/uso terapêutico , Inibidores de Janus Quinases/efeitos adversos , Feminino , Pessoa de Meia-Idade , Artrite Reumatoide/tratamento farmacológico , Purinas/uso terapêutico , Purinas/efeitos adversos , Antirreumáticos/efeitos adversos , Antirreumáticos/uso terapêutico , Piperidinas/uso terapêutico , Piperidinas/efeitos adversos , Idoso , Pirimidinas/uso terapêutico , Pirimidinas/efeitos adversos , Sulfonamidas/uso terapêutico , Sulfonamidas/efeitos adversos , Azetidinas/uso terapêutico , Azetidinas/efeitos adversos , Pirazóis/efeitos adversos , Pirazóis/uso terapêutico , Incidência , Herpes Zoster/epidemiologia , Herpes Zoster/induzido quimicamente , Adulto , Infecções/epidemiologia , Infecções/induzido quimicamenteRESUMO
BACKGROUND: Low muscle mass (MM) predicts unfavorable outcomes in cancer. Protein intake supports muscle health, but oncologic recommendations are not well characterized. The objectives of this study were to evaluate the feasibility of dietary change to attain 1.0 or 2.0 g/kg/day protein diets, and the preliminary potential to halt MM loss and functional decline in patients starting chemotherapy for stage II-IV colorectal cancer. PATIENTS AND METHODS: Patients were randomized to the diets and provided individualized counseling. Assessments at baseline, 6 weeks, and 12 weeks included weighed 3-day food records, appendicular lean soft tissue index (ALSTI) by dual-energy X-ray absorptiometry to estimate MM, and physical function by the Short Physical Performance Battery (SPPB) test. RESULTS: Fifty patients (mean ± standard deviation: age, 57 ± 11 years; body mass index, 27.3 ± 5.6 kg/m2; and protein intake, 1.1 ± 0.4 g/kg/day) were included at baseline. At week 12, protein intake reached 1.6 g/kg/day in the 2.0 g/kg/day group and 1.2 g/kg/day in the 1.0 g/kg/day group (P = 0.012), resulting in a group difference of 0.4 g/kg/day rather than 1.0 g/kg/day. Over one-half (59%) of patients in the 2.0 g/kg/day group maintained or gained MM compared with 44% of patients in the 1.0 g/kg/day group (P = 0.523). Percent change in ALSTI did not differ between groups [2.0 g/kg/day group (mean ± standard deviation): 0.5% ± 4.6%; 1.0 g/kg/day group: -0.4% ± 6.1%; P = 0.619]. No differences in physical function were observed between groups. However, actual protein intake and SPPB were positively associated (ß = 0.37; 95% confidence interval 0.08-0.67; P = 0.014). CONCLUSION: Individualized nutrition counselling positively impacted protein intake. However, 2.0 g/kg/day was not attainable using our approach in this population, and group contamination occurred. Increased protein intake suggested positive effects on MM and physical function, highlighting the potential for nutrition to attenuate MM loss in patients with cancer. Nonetheless, muscle anabolism to any degree is clinically significant and beneficial to patients. Larger trials should explore the statistical significance and clinical relevance of protein interventions.
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Neoplasias Colorretais , Proteínas Alimentares , Estudos de Viabilidade , Humanos , Neoplasias Colorretais/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Feminino , Projetos Piloto , Proteínas Alimentares/administração & dosagem , Idoso , Músculo Esquelético/efeitos dos fármacos , SarcopeniaRESUMO
Hemophilia is a rare disorder that is complex to diagnose and to manage. These evidence-based guidelines offer practical recommendations on the diagnosis and general management of hemophilia, as well as the management of complications including musculoskeletal issues, inhibitors, and transfusion-transmitted infections. By compiling these guidelines, the World Federation of Hemophilia aims to assist healthcare providers seeking to initiate and/or maintain hemophilia care programs, encourage practice harmonization around the world and, where recommendations lack adequate evidence, stimulate appropriate studies.
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Fatores de Coagulação Sanguínea/uso terapêutico , Hemofilia A/terapia , Hemorragia/prevenção & controle , Hemostáticos/uso terapêutico , Assistência Integral à Saúde/organização & administração , Atenção à Saúde/organização & administração , Hemofilia A/diagnóstico , Humanos , Manejo da DorRESUMO
AIMS: 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18FDG-PET/CT) is routinely used for the pre-treatment staging of oesophageal or gastro-oesophageal junction cancers (EGEJC). The aim of this study was to identify objective 18FDG-PET/CT-derived parameters that can aid in predicting the patterns of recurrence and prognostication in patients with EGEJC. PATIENTS AND METHODS: EGEJC patients referred for consideration of preoperative chemoradiation therapy were identified and clinicopathological data were collected. 18FDG-PET/CT imaging data were reviewed and correlated with treatment outcomes. Maximum standardised uptake value (SUVmax), metabolic tumour volume (MTV) and total lesion glycolysis were assessed and association with recurrence-free survival (RFS), locoregional recurrence-free survival (LR-RFS), oesophageal cancer-specific survival (ECSS) and overall survival were evaluated using receiver operating characteristic curves, as well as Cox regression and Kaplan-Meier models. RESULTS: In total, 191 EGEJC patients completed trimodality treatment and 164 with 18FDG-PET/CT data were included in this analysis. At the time of analysis, 15 (9.1%), 70 (42.7%) and two (1.2%) patients were noted to have locoregional, distant and both locoregional and distant metastases, respectively. The median RFS was 30 months (9.6-50.4) and the 5-year RFS was 31.1%. The 5-year overall survival and ECSS were both noted to be 34.8%. Pre-treatment MTV25 > 28.5 cm3 (P = 0.029), MTV40 > 12.4 cm3 (P = 0.018) and MTV50 > 10.2 cm3 (P = 0.005) predicted for worse LR-RFS, ECSS and overall survival for MTV definition of voxels ≥25%, 40% and 50% of SUVmax. CONCLUSION: 18FDG-PET/CT parameters MTV and total lesion glycolysis are useful prognostic tools to predict for LR-RFS, ECSS and overall survival in EGEJC. MTV had the highest accuracy in predicting clinical outcomes. The volume cut-off points we identified for different MTV thresholds predicted outcomes with significant accuracy and may potentially be used for decision making in clinical practice.
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Neoplasias Esofágicas , Fluordesoxiglucose F18 , Humanos , Fluordesoxiglucose F18/metabolismo , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Tomografia por Emissão de Pósitrons , Prognóstico , Neoplasias Esofágicas/diagnóstico por imagem , Neoplasias Esofágicas/terapia , Carga Tumoral , Glicólise , Estudos Retrospectivos , Compostos RadiofarmacêuticosRESUMO
Inhibitors are a serious complication, considerably increasing the morbidity, mortality and cost of treatment in this patient group. The challenge of treating people with haemophilia (PWH) with inhibitors can be met by a well-coordinated multidisciplinary team specialized in haemophilia. Each treatment centre must run a screening programme to detect inhibitors within their population and develop protocols to treat these patients. The treatment centre in Buenos Aires developed a screening programme that tests all our patients twice a year, ensuring early detection of inhibitors and early treatment of complications. In 2006, we analysed the quality of life (QOL) of non-inhibitor patients and compared it with inhibitor patients detected by this programme and found no differences in QOL measured by the SF36 questionnaire and no differences in school absenteeism. When diagnosis of the inhibitor does not come from a screening programme, its presence is suspected upon a lack of response to conventional replacement therapy for musculoskeletal bleeding, losing the 'golden moment' of treatment. This complication is much more serious when facing a traumatic bleed. In this situation, the lack of early diagnosis can lead to permanent damage or even death. Due to the cost of bypassing factors and the lack of experience of the medical team in the treatment of patients with inhibitors, many treatments that would improve the QOL of patients are instituted in an insufficient manner. Therefore, patients with haemophilia and inhibitors are often untreated or undertreated in their community. Orthopaedic surgeons and physiotherapists play a key role in the treatment of these patients and should be included in therapeutic decision making and most specifically in the postoperative treatment of patients with haemophilia and inhibitors. It is important that these patients have quick access to a trained therapeutic team in order to obtain an early diagnosis and treatment plan to prevent the evolution of the pathological process. Early treatment is cost-effective in maintaining and improving the QOL of patients. Experience in patients with haemophilia and inhibitors is not very extensive. Today, this situation is changing, with several treatment centres beginning to perform surgeries in these most complex patients, giving them a chance to improve their QOL. This article presents the experience of experts from various fields involved in treating patients with inhibitors from a developed and developing world perspective.
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Hemofilia A/terapia , Hemofilia B/terapia , Doenças Musculoesqueléticas/terapia , Procedimentos Ortopédicos/métodos , Inibidores dos Fatores de Coagulação Sanguínea/sangue , Coagulantes/uso terapêutico , Fator VII/uso terapêutico , Hemofilia A/complicações , Hemofilia A/imunologia , Hemofilia B/complicações , Hemofilia B/imunologia , Hemorragia/tratamento farmacológico , Humanos , Doenças Musculoesqueléticas/etiologia , Doenças Musculoesqueléticas/imunologia , Modalidades de FisioterapiaRESUMO
The Canadian Physiotherapists in Hemophilia Care (CPHC) sought to learn about attitudes and behaviours of young male adults with mild haemophilia towards their condition and care. Semi-structured in-person or telephone interviews were conducted with 18 young men from and across Canada. This report summarizes the participants' attitudes towards their haemophilia, previous injuries, perceived barriers to seeking treatment, as well as their decision-making process when self-assessing injury. The interviews demonstrated that communication between the young adults and the health care team was not optimal, with common reference to the ineffectiveness of lecture style education. Gaps in knowledge also emerged regarding bleed identification and management.
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Conhecimentos, Atitudes e Prática em Saúde , Hemofilia A/psicologia , Hemofilia B/psicologia , Adolescente , Adulto , Canadá , Comunicação , Tomada de Decisões , Acessibilidade aos Serviços de Saúde , Humanos , Masculino , Educação de Pacientes como Assunto/normas , Satisfação do Paciente , Relações Profissional-Paciente , Pesquisa Qualitativa , Inquéritos e Questionários , Adulto JovemRESUMO
UNLABELLED: Most patients with gastric or gastroesophageal junction (gej) cancer are diagnosed with inoperable advanced or metastatic disease. In these cases, chemotherapy is the only treatment demonstrating survival benefit. The present study compares clinicopathologic characteristics and survival outcomes for patients with advanced esophageal, gej, and gastric adenocarcinoma treated with first-line chemotherapy [epirubicin-cisplatin-5-fluorouracil (ecf), epirubicin-cisplatin-capecitabine (ecx), or etoposide-leucovorin-5-fluorouracil (elf)] or best supportive care (bsc) at our institution with those for historical controls. METHODS: We retrospectively reviewed medical information for 401 patients with newly diagnosed advanced esophageal, gej, or gastric adenocarcinoma treated with first-line chemotherapy (ecf, ecx, or elf) or bsc from January 1, 2004, through December 31, 2010. Descriptive statistics were used to compare the data collected with data for historical control patients. RESULTS: Of the study patients, 93% were diagnosed with metastatic disease (n = 374), and 63% received bsc only (n = 251). The main reasons that patients received bsc only included poor Eastern Cooperative Oncology Group performance status (55%), patient decision (31%), and comorbidities (14%). Of the remaining patients, 98 (24%) received ecf or ecx and 52 (13%) received elf as first-line treatment. Median overall survival was significantly longer in patients treated with ecf or ecx or with elf than in those receiving bsc (12.7 months vs. 12.7 months vs. 5.5 months respectively). Chemotherapy also significantly reduced the risk of death (64% reduction with ecf or ecx, 58% with elf). CONCLUSIONS: We confirmed the substantial overall survival benefit of combination chemotherapy compared with bsc, with better survival in our patient population than in historical controls. However, novel treatment options are still warranted to improve outcomes in this patient population.
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AIM: To determine the efficacy of preoperative chemoradiotherapy as per the CROSS protocol for oesophageal/gastroesophageal junction cancer (OEGEJC), when expanded to patients outside of the inclusion/exclusion criteria defined in the original clinical trial. MATERIALS AND METHODS: Data were collected retrospectively on 229 OEGEJC patients referred for curative-intent preoperative chemoradiotherapy. Outcomes including pathological complete response (pCR), overall survival (OS), cancer-specific survival and recurrence-free survival (RFS) of patients who met CROSS inclusion criteria (MIC) versus those who failed to meet criteria (FMIC) were determined. RESULTS: In total, 42.8% of patients MIC, whereas 57.2% FMIC; 16.6% of patients did not complete definitive surgery. The MIC cohort had higher rates of pCR, when compared with the FMIC cohort (33.3% versus 20.6%, P = 0.039). The MIC cohort had a better RFS, cancer-specific survival and OS compared with the FMIC cohort (P = 0.006, P = 0.004 and P = 0.009, respectively). Age >75 years and pretreatment weight loss >10% were not associated with a poorer RFS (P = 0.541 and 0.458, respectively). Compared with stage I-III patients, stage IVa was associated with a poorer RFS (hazard ratio (HR) = 2.158; 95% confidence interval (CI) = 1.339-3.480, P = 0.001). Tumours >8 cm in length or >5 cm in width had a trend towards worse RFS (HR = 2.060; 95% CI = 0.993-4.274, P = 0.052). CONCLUSION: Our study showed that the robust requirements of the CROSS trial may limit treatment for patients with potentially curable OEGEJC and can be adapted to include patients with a good performance status who are older than 75 years or have >10% pretreatment weight loss. However, the inclusion of patients with celiac nodal metastases or tumours >8 cm in length or >5 cm in width may be associated with poor outcomes.
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Neoplasias Esofágicas , Neoplasias Gástricas , Idoso , Quimiorradioterapia/métodos , Neoplasias Esofágicas/patologia , Junção Esofagogástrica/patologia , Junção Esofagogástrica/cirurgia , Humanos , Estudos Retrospectivos , Neoplasias Gástricas/terapia , Redução de PesoAssuntos
Corticosteroides/administração & dosagem , Carcinoma Adenoide Cístico/tratamento farmacológico , Dermatoses do Couro Cabeludo/tratamento farmacológico , Neoplasias Cutâneas/tratamento farmacológico , Triancinolona Acetonida/administração & dosagem , Adulto , Idoso , Feminino , Humanos , Injeções Intralesionais , Masculino , Pessoa de Meia-Idade , Resultado do TratamentoRESUMO
Adapting Ca homeostasis of dairy cows before calving can prevent milk fever. Rice bran, treated with formaldehyde to prevent ruminal degradation of phytic acid, was fed to heifers to study its effect on Ca homeostasis. For 3 weeks 18 heifers were supplemented 3 kg of two feeds: placebo (PF) and rice bran (RBF), defining three treatments: control (CRT), low dose (LD) and high dose (HD). In weeks 1 and 3, all animals received 3 kg of PF and in week 2: CRT received 3 kg of PF, LD received 1.5 kg of PF and 1.5 kg of RBF and HD received 3 kg of RBF. Treatments did not affect dry matter intake (DMI). Feed intakes and growth rates indicated that all heifers had nutritional requirements that exceeded their Ca intakes. Serum Ca, urinary Ca, calcitriol or hydroxyproline remained unaffected. Urinary Ca was consistently low indicating high renal Ca reabsorption, which is indicative of insufficient Ca supply. Rice bran feed influenced P, Mg and Zn intakes and serum and urine presence of these minerals. Most heifers already presented an upregulated Ca metabolism, being inadequate to study adaptive changes in Ca homeostasis of multiparous dry cows. This metabolic difference can be explanatory to the very low susceptibility of heifers to milk fever, further supporting the induction of homeostatic adaptation before calving to prevent milk fever. Rice bran feed did not reduce DMI, and was not detrimental to P, Mg or Zn status.
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Bovinos/sangue , Bovinos/metabolismo , Minerais/sangue , Oryza/metabolismo , Rúmen/metabolismo , Ração Animal/análise , Fenômenos Fisiológicos da Nutrição Animal , Animais , Densidade Óssea , Cálcio/metabolismo , Dieta/veterinária , Feminino , LactaçãoRESUMO
At calving, many older cows fail to compensate the sudden demand of calcium by an adequate activation of intestinal absorption. This results in a variable degree of hypocalcaemia. Reducing intestinal availability of calcium during the close-up period can prevent milk fever. Fat-coated rice bran (FCRB) was investigated for its potential to reduce Ca availability in pre-calving cows. Fat-coated rice bran was incubated in situ to estimate ruminal degradation of dry matter and phytic acid. Also, seven dry multiparous dairy cows were used for a feeding trial in three periods of approximately 1 week each: P1: adaptation; P2: feeding of 2 kg of FCRB and P3: withdrawal of FCRB. Feed intake was recorded and daily urine samples were analysed for pH, Ca and creatinine. The bypass fraction of phytic acid (passage rate: 5%/h) was 30%. Fat-coated rice bran depressed dry matter intake in P2, resulting in a lower Ca intake. In P2 urine pH and calcium excretion were lower. Daily calcium excretion decreased after introduction of FCRB, peaked after withdrawal and dropped 2 days later. Changes in urinary Ca excretion by feeding FCRB indicate that FCRB affected Ca homeostasis in dry multiparous dairy cows.
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Ração Animal/análise , Cálcio/urina , Doenças dos Bovinos/prevenção & controle , Dieta/veterinária , Oryza , Óleos de Plantas , Fenômenos Fisiológicos da Nutrição Animal , Animais , Cálcio/metabolismo , Bovinos , Doenças dos Bovinos/urina , Indústria de Laticínios , Gorduras na Dieta , Feminino , Óleo de Palmeira , Paresia Puerperal/prevenção & controle , GravidezRESUMO
Transforming growth factor-beta 1 (TGF-beta 1) has previously been implicated as a potential negative autocrine or paracrine growth regulator of certain cell types (Arteaga, C. L., R. J. Coffey, Jr., T. C. Dugger, C. M. McCutchen, H. L. Moses, and R. M. Lyons. 1990. Cell Growth & Differ. 1:367-374; Hafez, M. M., D. Infante, S. Winawer, and E. Friedman. 1990. Cell Growth & Differ. 1:617-626; Glick, A. B., K. C. Flanders, D. Danielpour, S. H. Yuspa, and M. B. Sporn. 1989. Cell Regulation. 1:87-97). This is based mainly on experiments assessing the effects of exogenous TGF-beta 1 or neutralizing antibodies to TGF-beta 1 on normal or tumor cell proliferation in vitro. However, direct evidence demonstrating such a negative regulation of tumor cell growth in vivo is still lacking. To overcome this problem we have constructed and used an antisense expression vector for TGF-beta 1 as a means of regulating endogenous TGF-beta 1 expression in tumor cells. Antisense-transfected FET human colon carcinoma cells showed a fivefold reduction in TGF-beta 1 mRNA and 15-fold reduction in TGF-beta 1 secretion. Antisense mRNA was detected in transfected cells by an RNase protection assay. Compared to control cells, cultured antisense-transfected cells showed a reduction in lag phase time rather than a change in doubling time. Cloning efficiencies of transfected cells were four times greater than control cells in anchorage-independent assays. Control cells did not form tumors at 5 x 10(5) in athymic nude mice. Antisense-transfected cells formed tumors in 40% of animals injected. At higher inocula (1 x 10(6) cells) antisense-transfected cells formed tumors in 100% of animals injected, but control cells still failed to form tumors. These results show that TGF-beta 1 acts as a negative growth regulator of human colon carcinoma cells in vivo as well as in vitro. Acquisition of partial or full resistance to such inhibitory effects may therefore contribute to tumor development and progression.
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Divisão Celular , Neoplasias do Colo/patologia , RNA Antissenso/genética , RNA Mensageiro/genética , Fator de Crescimento Transformador beta/fisiologia , Animais , Anticorpos , Linhagem Celular , Clonagem Molecular , Vetores Genéticos , Humanos , Camundongos , Camundongos Nus , Transplante de Neoplasias , Plasmídeos , Transfecção , Fator de Crescimento Transformador beta/genética , Transplante HeterólogoRESUMO
All but essential surgery is generally avoided in haemophilia patients with inhibitor antibodies, because of concern about the reliability with which haemostasis can be achieved and maintained in such patients. Orthopaedic surgical procedures which are not required to preserve life fall under this category. As a result, patients with inhibitors may be denied operations, which could greatly enhance their quality of life, and which are routinely offered to other haemophilia patients. While caution is appropriate in recommending surgery in any circumstance, we believe that the threshold for offering validated surgical procedures to patients with inhibitors should be re-evaluated in the light of current surgical and rehabilitative techniques, and the long experience with safe and effective factor VIII inhibitor bypassing agents, namely activated prothrombin complex concentrates and recombinant activated factor FVII. In this article, we review the haematological, surgical and rehabilitative considerations relevant to orthopaedic surgery in haemophilia patients with inhibitors, and provide recommendations for carrying out such procedures.
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Fator VIII/imunologia , Hemofilia A/terapia , Hemostasia Cirúrgica/métodos , Isoanticorpos/sangue , Procedimentos Ortopédicos/métodos , Fatores de Coagulação Sanguínea/uso terapêutico , Fator VIIa/uso terapêutico , Hemofilia A/imunologia , Humanos , Masculino , Procedimentos Ortopédicos/reabilitação , Assistência Perioperatória/métodos , Proteínas Recombinantes/uso terapêuticoRESUMO
The 20th annual Western Canadian Gastrointestinal Cancer Consensus Conference was held in Saskatoon, Saskatchewan, 28-29 September 2018. This interactive multidisciplinary conference is attended by health care professionals from across Western Canada (British Columbia, Alberta, Saskatchewan, and Manitoba) who are involved in the care of patients with gastrointestinal cancers. In addition, invited speakers from other provinces participate. Surgical, medical, and radiation oncologists, and allied health care professionals participated in presentations and discussion sessions for the purpose of developing the recommendations presented here. This consensus statement addresses current issues in the management of colorectal cancers.