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1.
Hum Reprod ; 2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38783613

RESUMO

STUDY QUESTION: After an IVF cycle cancellation, does changing the stimulation protocol affect the odds of live birth and recurrent cancellation in the subsequent cycle? SUMMARY ANSWER: After IVF cycle cancellation, compared to those who repeated the same stimulation protocol, those who changed their protocol had higher odds of live birth and lower odds of recurrent cycle cancellation. WHAT IS KNOWN ALREADY: There is limited data addressing the effect of changing the stimulation protocol after an IVF cycle is cancelled during initial stimulation. The odds of live birth outcomes are not known so far in studies addressing the effect of changing the protocol. STUDY DESIGN, SIZE, DURATION: Retrospective Cohort Study using the 2014-2017 Society for Assisted Reproductive Technology Clinic Outcome Reporting System (SART CORS) database. PARTICIPANTS/MATERIALS, SETTING, METHODS: The data included 13 135 patients with a first autologous IVF cycle that resulted in a cycle cancellation and was followed by a second autologous cycle within the study period. We excluded fertility preservation cycles, supernumerary cycle attempts after the second IVF cycle attempt, and cycles with more than one stimulation protocol documented per cycle start. Patients who received the same protocol for both cycles (n = 6434) were compared to those who changed their protocol in the second cycle (n = 6701). Multivariable logistic regression analyses were performed to estimate the adjusted odds of live birth and recurrent cancellation. MAIN RESULTS AND THE ROLE OF CHANCE: Changing the protocol in the second cycle resulted 14% lower odds of recurrent cycle cancellation (P = 0.01) and 17% higher odds of live birth after fresh transfers (P = 0.04). When stratifying the data by specific combinations of protocol change (agonist flare, agonist suppression, antagonist), there was an increase in live birth when switching from antagonist to agonist suppression (odds ratio (OR) = 1.36, P = 0.03) and from agonist suppression to antagonist (OR = 1.73, P = 0.01) compared to those who repeated their same stimulation protocol. Specifically in poor responders, outcomes were worse when using the agonist flare protocol and significantly improved with the agonist suppression protocol. LIMITATIONS, REASONS FOR CAUTION: Comparison of response to stimulation between first and second cycles cannot be made in this study because the index IVF cycle was cancelled during ovarian stimulation, and thus there is no reportable outcome data for that cycle. Additionally, SART only tracks the three stimulation protocols addressed in this study and does not have data on more contemporary protocols that are used in poor responders thus limiting the generalizability of our findings. WIDER IMPLICATIONS OF THE FINDINGS: Using the SART CORS database, which includes >90% of all reported IVF cycles in the USA, provides generalizability to the demographically diverse IVF populations found here. In agreement with prior studies assessing change in IVF protocols, the agonist flare protocol seems to result in worse IVF outcomes, and based on our results, we believe that there is no role for the agonist flare protocol in patients with a prior poor response to stimulation. STUDY FUNDING/COMPETING INTEREST(S): None declared. TRIAL REGISTRATION NUMBER: N/A.

2.
J Urol ; 204(5): 950-955, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32602770

RESUMO

PURPOSE: Men in whom external beam radiotherapy fails are usually placed on delayed hormone therapy. Some of these men have localized recurrence that might be suitable for further local therapy. We describe patterns of recurrence and suitability for focal ablative therapy in those undergoing transperineal template prostate mapping biopsies. MATERIALS AND METHODS: The study included 145 consecutive patients (December 2007 to May 2014) referred with suspicion of recurrence due to rising prostate specific antigen after external beam radiotherapy or brachytherapy who underwent transperineal template prostate mapping biopsies. Suitability for focal ablative therapy required the cancer to be unifocal or unilateral, or bilateral/multifocal with 1 dominant index lesion and secondary lesions with Gleason score 3+3=6 with no more than 3 mm cancer core involvement. RESULTS: Mean patient age was 70.7 (SD 5.8) years. Median prostate specific antigen at time of transperineal template prostate mapping biopsy was 4.5 ng/ml (IQR 2.5-7.7). Overall 75.9% (110) were suitable for a form of focal salvage treatment, 40.7% (59) were suitable for quadrant ablation, 14.5% (21) hemiablation, 14.5% (21) bilateral focal ablation and 6.2% (9) for index lesion ablation. CONCLUSIONS: Three-quarters of patients who have localized radiorecurrent prostate cancer may be suitable for focal ablative therapy to the prostate based on transperineal template prostate mapping biopsies.


Assuntos
Técnicas de Ablação/métodos , Calicreínas/sangue , Recidiva Local de Neoplasia/terapia , Antígeno Prostático Específico/sangue , Neoplasias da Próstata/terapia , Terapia de Salvação/métodos , Técnicas de Ablação/efeitos adversos , Idoso , Humanos , Biópsia Guiada por Imagem/métodos , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Recidiva Local de Neoplasia/sangue , Recidiva Local de Neoplasia/diagnóstico , Recidiva Local de Neoplasia/patologia , Seleção de Pacientes , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Próstata/diagnóstico por imagem , Próstata/patologia , Próstata/efeitos da radiação , Neoplasias da Próstata/sangue , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/patologia , Medição de Risco , Terapia de Salvação/efeitos adversos
3.
Mol Psychiatry ; 22(3): 353-363, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-28093567

RESUMO

Alzheimer's disease (AD) is a progressive and fatal neurodegenerative disorder. There is no test for its definitive diagnosis in routine clinical practice. Although phase III clinical trials have failed, only symptomatic treatment is currently available; a possible reason for these failed trials is that intervention commenced at an advanced stage of the disease. The hallmarks of an AD brain include plaques comprising of extracellular beta-amyloid (Aß) protein aggregates and intracellular hyperphosphorylated neurofibrillary tangles of tau. Research into the preclinical diagnosis of AD has provided considerable evidence regarding early neuropathological changes using brain Aß imaging and the cerebrospinal fluid biomarkers, Aß and tau. Both these approaches have limitations that are expensive, invasive or time consuming and thus preclude them from screening at-risk population. Recent studies have demonstrated the presence of Aß plaques in the eyes of AD subjects, which is positively associated with their brain Aß burden. Thus ocular biomarkers point to a potential avenue for an earlier, relatively low-cost diagnosis in order for therapeutic interventions to be effective. Here we review the literature that spans the investigation for the presence of Aß in aging eyes and the significance of its deposition in relation to AD pathology. We discuss clinical studies investigating in vivo imaging of Aß in the eye and its association with brain Aß burden and therapies that target ocular Aß. Finally, we focus on the need to characterize AD-specific retinal Aß to differentiate Aß found in some eye diseases. Based on the current evidence, we conclude that integration of ocular biomarkers that can correctly predict brain Aß burden would have an important role as a non-invasive, yet economical surrogate marker in the diagnostic process of AD.


Assuntos
Doença de Alzheimer/patologia , Peptídeos beta-Amiloides/metabolismo , Fenômenos Fisiológicos Oculares/genética , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/genética , Envelhecimento/fisiologia , Peptídeos beta-Amiloides/fisiologia , Animais , Biomarcadores/metabolismo , Encéfalo/metabolismo , Modelos Animais de Doenças , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Emaranhados Neurofibrilares/patologia , Placa Amiloide/metabolismo , Proteínas tau/metabolismo
4.
Dis Esophagus ; 30(11): 1-8, 2017 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-28881898

RESUMO

Optical coherence tomography (OCT) can generate high-resolution images of the esophagus that allows cross-sectional visualization of esophageal wall layers. We conducted a systematic review to assess the utility of OCT for diagnosing of esophageal intestinal metaplasia (IM; Barrett's esophagus BE)), dysplasia, cancer and staging of early esophageal cancer. English language human observational studies and clinical trials published in PubMed and Embase were included if they assessed any of the following: (i) in-vivo features and accuracy of OCT at diagnosing esophageal IM, sub-squamous intestinal metaplasia (SSIM), dysplasia, or cancer, and (ii) accuracy of OCT in staging esophageal cancer. Twenty-one of the 2,068 retrieved citations met inclusion criteria. In the two prospective studies that assessed accuracy of OCT at identifying IM, sensitivity was 81%-97%, and specificity was 57%-92%. In the two prospective studies that assessed accuracy of OCT at identifying dysplasia and early cancer, sensitivity was 68%-83%, and specificity was 75%-82%. Observational studies described significant variability in the ability of OCT to accurately identify SSIM. Two prospective studies that compared the accuracy of OCT at staging early squamous cell carcinoma to histologic resection specimens reported accuracy of >90%. Risk of bias and applicability concerns was rated as low among the prospective studies using the QUADAS-2 questionnaire. OCT may identify intestinal metaplasia and dysplasia, but its accuracy may not meet recommended thresholds to replace 4-quadrant biopsies in clinical practice. OCT may be more accurate than EUS at staging early esophageal cancer, but randomized trials and cost-effective analyses are lacking.


Assuntos
Esôfago de Barrett/diagnóstico por imagem , Neoplasias Esofágicas/diagnóstico por imagem , Esôfago/patologia , Intestinos/patologia , Tomografia de Coerência Óptica/estatística & dados numéricos , Adulto , Idoso , Esôfago de Barrett/patologia , Biópsia , Ensaios Clínicos como Assunto , Neoplasias Esofágicas/patologia , Esôfago/diagnóstico por imagem , Feminino , Humanos , Hiperplasia/diagnóstico por imagem , Intestinos/diagnóstico por imagem , Masculino , Metaplasia/diagnóstico por imagem , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Estudos Observacionais como Assunto , Valor Preditivo dos Testes , Estudos Prospectivos , Sensibilidade e Especificidade
5.
Am J Transplant ; 16(12): 3468-3478, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27184779

RESUMO

Antibody-mediated rejection (AMR) is typically treated with plasmapheresis (PP) and intravenous immunoglobulin (standard of care; SOC); however, there is an unmet need for more effective therapy. We report a phase 2b, multicenter double-blind randomized placebo-controlled pilot study to evaluate the use of human plasma-derived C1 esterase inhibitor (C1 INH) as add-on therapy to SOC for AMR. Eighteen patients received 20 000 units of C1 INH or placebo (C1 INH n = 9, placebo n = 9) in divided doses every other day for 2 weeks. No discontinuations, graft losses, deaths, or study drug-related serious adverse events occurred. While the study's primary end point, a difference between groups in day 20 pathology or graft survival, was not achieved, the C1 INH group demonstrated a trend toward sustained improvement in renal function. Six-month biopsies performed in 14 subjects (C1 INH = 7, placebo = 7) showed no transplant glomerulopathy (TG) (PTC+cg≥1b) in the C1 INH group, whereas 3 of 7 placebo subjects had TG. Endogenous C1 INH measured before and after PP demonstrated decreased functional C1 INH serum concentration by 43.3% (p < 0.05) for both cohorts (C1 INH and placebo) associated with PP, although exogenous C1 INH-treated patients achieved supraphysiological levels throughout. This new finding suggests that C1 INH replacement may be useful in the treatment of AMR.


Assuntos
Proteína Inibidora do Complemento C1/farmacologia , Inativadores do Complemento/farmacologia , Rejeição de Enxerto/tratamento farmacológico , Isoanticorpos/efeitos adversos , Transplante de Rim/efeitos adversos , Método Duplo-Cego , Feminino , Seguimentos , Taxa de Filtração Glomerular , Rejeição de Enxerto/etiologia , Sobrevivência de Enxerto , Humanos , Imunoglobulinas Intravenosas/administração & dosagem , Falência Renal Crônica/cirurgia , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Plasmaferese , Prognóstico , Fatores de Risco
6.
Br J Nutr ; 115(3): 449-65, 2016 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-26652155

RESUMO

Curcumin derived from turmeric is well documented for its anti-carcinogenic, antioxidant and anti-inflammatory properties. Recent studies show that curcumin also possesses neuroprotective and cognitive-enhancing properties that may help delay or prevent neurodegenerative diseases, including Alzheimer's disease (AD). Currently, clinical diagnosis of AD is onerous, and it is primarily based on the exclusion of other causes of dementia. In addition, phase III clinical trials of potential treatments have mostly failed, leaving disease-modifying interventions elusive. AD can be characterised neuropathologically by the deposition of extracellular ß amyloid (Aß) plaques and intracellular accumulation of tau-containing neurofibrillary tangles. Disruptions in Aß metabolism/clearance contribute to AD pathogenesis. In vitro studies have shown that Aß metabolism is altered by curcumin, and animal studies report that curcumin may influence brain function and the development of dementia, because of its antioxidant and anti-inflammatory properties, as well as its ability to influence Aß metabolism. However, clinical studies of curcumin have revealed limited effects to date, most likely because of curcumin's relatively low solubility and bioavailability, and because of selection of cohorts with diagnosed AD, in whom there is already major neuropathology. However, the fresh approach of targeting early AD pathology (by treating healthy, pre-clinical and mild cognitive impairment-stage cohorts) combined with new curcumin formulations that increase bioavailability is renewing optimism concerning curcumin-based therapy. The aim of this paper is to review the current evidence supporting an association between curcumin and modulation of AD pathology, including in vitro and in vivo studies. We also review the use of curcumin in emerging retinal imaging technology, as a fluorochrome for AD diagnostics.


Assuntos
Doença de Alzheimer/diagnóstico , Doença de Alzheimer/prevenção & controle , Curcumina/farmacologia , Animais , Cognição/efeitos dos fármacos , Modelos Animais de Doenças , Corantes Fluorescentes/análise , Humanos , Emaranhados Neurofibrilares/efeitos dos fármacos , Emaranhados Neurofibrilares/metabolismo , Fármacos Neuroprotetores/farmacologia , Nootrópicos/farmacologia , Ensaio Radioligante/métodos , Ensaios Clínicos Controlados Aleatórios como Assunto
7.
Kathmandu Univ Med J (KUMJ) ; 13(52): 341-5, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-27423285

RESUMO

Background It is predicted that the prevalence of overweight and obesity will rise significantly by 2015 in young population. Problem of overweight and obesity has been recognized as public health problem worldwide due to the fact that it increases the risk of chronic diseases such as Cardiovascular Diseases (CVD), stroke, diabetes, sleep apnoea, osteoarthritis etc. Objective To assess the body mass index in medical students and its association with various cardiovascular risk factors like blood pressure, dietary habits, and family history of cardiovascular diseases. Method A university based cross-sectional analytical study was conducted in Department of Physiology, Smt. B.K. Shah Medical Institute and Research Center, Vadodara, Gujarat. Data was collected through convenient sampling technique by using selfadministered questionnaire followed by anthropometric measurement. Body Mass Index (BMI) of 138 first year medical students was assessed. Systolic blood pressure, diastolic blood pressure, pulse pressure, mean blood pressure, pulse rate and arterial oxygen saturation were measured. Result Data was compiled in excel sheet, analyzed for percentage and proportion. Chi square and Pearson correlation test were also applied and alpha error was set at 5% level. In comparison to the students with normal BMI, students with BMI >25 kg/m2 (N=49) showed significantly high blood pressure indices. Dietary habits and family history of cardiovascular diseases were also noted. Highly significant association of high BMI was found with elevated blood pressure (X2=7.4042***, p<0.001) and presence of family history of cardiovascular diseases X2=9.8625***, p<0.001). BMI is negatively correlated with SpO2 (r= -0.0504, p<0.05) and pulse rate, while positively correlated with systolic blood pressure (r=0.2736) and diastolic blood pressure (r=0.0275). Conclusion In conclusion, majority (more than 35%) of medical students were overweight, high prevalence of cardiovascular risk factors like family history, elevated blood pressure and less SpO2.


Assuntos
Doenças Cardiovasculares/etiologia , Obesidade/epidemiologia , Estudantes de Medicina/estatística & dados numéricos , Adulto , Pressão Sanguínea , Índice de Massa Corporal , Doenças Cardiovasculares/epidemiologia , Estudos Transversais , Feminino , Frequência Cardíaca , Humanos , Masculino , Obesidade/complicações , Sobrepeso , Prevalência , Fatores de Risco , Inquéritos e Questionários , Universidades , Adulto Jovem
8.
Transpl Infect Dis ; 16(5): 724-32, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25208755

RESUMO

BACKGROUND: Cytomegalovirus (CMV) is the most common cause of viral infection, causing morbidity and mortality among renal transplant recipients (RTRs). Cytokines such as tumor necrosis factor-alpha (TNF-α), interleukin-10 (IL-10), and interferon-gamma (IFN-γ) have been shown to possess antiviral properties, and their polymorphisms are associated with disease outcome. The aim was to investigate the association of gene polymorphisms in IL-10, IFN-γ, and TNF-α with CMV infection in RTRs. METHODS: IL-10 -1082 A>G, -592 A>C; TNF-α -308 A>G; and IFN-γ +874 A>T gene polymorphisms were studied in 247 Hispanic RTRs (52 RTRs with CMV infection and 195 without CMV infection), using DNA-based polymerase chain reaction with sequence-specific primers and restriction. RESULTS: Median time to CMV infection was 8 months, with a mean peak CMV viral load of 25,314 copies/mL. Patients with donor-positive/recipient-negative (D+/R-) serostatus were found to be associated with a high risk of CMV infection (P = 0.001). A statistically significant correlation was found between IFN-γ +874 A>T polymorphism and the risk of CMV infection. The IFN-γ +874 AA genotype was associated with a 3.4-fold increased risk for the CMV-infected group compared to the non-CMV group (odds ratio = 3.4, 95% confidence interval = 1.24-9.34, P = 0.01). The association was independently significant in multiple logistic regression (P = 0.01), along with serologic status D+/R-, acute rejection, and anti-thymocyte globulin induction. The allelic as well as genotypic frequencies of TNF-α and IL-10 did not significantly differ between the CMV-infection group and the control group. Individuals with IFN-γ +874 AT and AA genotypes exhibited higher risk of allograft loss. CONCLUSION: This study suggested that RTRs with variant homozygous IFN-γ AA genotype were at risk of CMV infection, whereas the high producer IFN-γ +874 TT genotype appears to be associated with lower risk of CMV infection.


Assuntos
Anticorpos Antivirais/sangue , Infecções por Citomegalovirus/epidemiologia , Infecções por Citomegalovirus/genética , Citomegalovirus/imunologia , Hispânico ou Latino/genética , Interferon gama/genética , Transplante de Rim/efeitos adversos , Adulto , Estudos de Casos e Controles , Infecções por Citomegalovirus/virologia , Feminino , Frequência do Gene , Genótipo , Rejeição de Enxerto/genética , Humanos , Incidência , Interleucina-10/genética , Masculino , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único , Estudos Retrospectivos , Fatores de Risco , Fator de Necrose Tumoral alfa/genética , Carga Viral
9.
Actas Urol Esp (Engl Ed) ; 48(3): 228-237, 2024 Apr.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-37574012

RESUMO

INTRODUCTION: Malignant tumors of the urinary tract are associated with high morbidity and mortality, and their prevalence can vary worldwide. Recently, the IDENTIFY study has published results on the prevalence of urinary tract cancer at a global level. This study evaluates the prevalence of cancer within the Spanish cohort of the IDENTIFY study to determine whether the published results can be extrapolated to our population. PATIENTS AND METHODS: An analysis of the data from the Spanish cohort of patients in the IDENTIFY study was performed. This is a prospective cohort of patients referred to secondary care with suspected cancer, predominantly due to hematuria. Patients were recruited between December 2017 and December 2018. RESULTS: A total of 706 patients from 9 Spanish centers were analyzed. Of these, 277 (39.2%) were diagnosed with cancer: 259 (36.7%) bladder cancer, 10 (1.4%) upper tract urothelial carcinoma, 9 (1.2%) renal cancer and 5 (0.7%) prostate cancer. Increasing age (OR 1.05 (95% CI 1.03-1.06; P < 0.001)), visible hematuria (VH) OR 2.19 (95% CI 1.13-4.24; P = 0.02)) and smoking (ex-smokers: OR 2.11(95% CI 1.30-3.40; P = 0.002); smokers: OR 2.36 (95% CI 1.40-3.95; P = 0.001)) were associated with higher probability of bladder cancer. CONCLUSION: This study highlights the risk of bladder cancer in patients with VH and smoking habits. Bladder cancer presented the highest prevalence; higher than the prevalence reported in previous series and presented in the IDENTIFY study. Future work should evaluate other associated factors that allow us to create cancer prediction models to improve the detection of cancer in our patients.


Assuntos
Carcinoma de Células de Transição , Neoplasias da Bexiga Urinária , Neoplasias Urológicas , Masculino , Humanos , Neoplasias da Bexiga Urinária/complicações , Carcinoma de Células de Transição/patologia , Hematúria/epidemiologia , Hematúria/etiologia , Estudos Prospectivos , Prevalência , Neoplasias Urológicas/epidemiologia
10.
Bioinformatics ; 28(12): 1598-603, 2012 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-22500001

RESUMO

MOTIVATION: Existing microarray genotype-calling algorithms adopt either SNP-by-SNP (SNP-wise) or sample-by-sample (sample-wise) approaches to calling. We have developed a novel genotype-calling algorithm for the Illumina platform, optiCall, that uses both SNP-wise and sample-wise calling to more accurately ascertain genotypes at rare, low-frequency and common variants. RESULTS: Using data from 4537 individuals from the 1958 British Birth Cohort genotyped on the Immunochip, we estimate the proportion of SNPs lost to downstream analysis due to false quality control failures, and rare variants misclassified as monomorphic, is only 1.38% with optiCall, in comparison to 3.87, 7.85 and 4.09% for Illuminus, GenoSNP and GenCall, respectively. We show that optiCall accurately captures rare variants and can correctly account for SNPs where probe intensity clouds are shifted from their expected positions. AVAILABILITY AND IMPLEMENTATION: optiCall is implemented in C++ for use on UNIX operating systems and is available for download at http://www.sanger.ac.uk/resources/software/opticall/.


Assuntos
Algoritmos , Genótipo , Polimorfismo de Nucleotídeo Único , Software , Análise por Conglomerados , Estudos de Associação Genética , Humanos , Modelos Estatísticos , Análise de Sequência com Séries de Oligonucleotídeos
11.
Poult Sci ; 102(4): 102523, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36796244

RESUMO

Salmonella Enteritidis is a major foodborne pathogen that causes enteric illnesses in humans, primarily through the consumption of contaminated poultry meat and eggs. Despite implementation of traditional disinfection approaches to reduce S. Enteritidis contamination, egg-borne outbreaks continue to occur, raising public health concerns and adversely affecting the popularity and profitability for the poultry industry. Generally Recognized as Safe (GRAS) status phytochemicals such as Trans-cinnamaldehyde (TC) have previously shown to exhibit anti-Salmonella efficacy, however, the low solubility of TC is a major hurdle in its adoption as an egg wash treatment. Therefore, the present study investigated the efficacy of Trans-cinnamaldehyde nanoemulsions (TCNE) prepared with emulsifiers Tween 80 (Tw.80) or Gum Arabic and lecithin (GAL) as dip treatments, at 34°C, for reducing S. Enteritidis on shelled eggs in presence or absence of 5% chicken litter. In addition, the efficacy of TCNE dip treatments in reducing trans-shell migration of S. Enteritidis across shell barrier was investigated. The effect of wash treatments on shell color were evaluated on d 0, 1, 7, and 14 of refrigerated storage. TCNE-Tw.80 or GAL treatments (0.06, 0.12, 0.24, 0.48%) were effective in inactivating S. Enteritidis by at least 2 to 2.5 log cfu/egg as early as 1 min of washing time (P < 0.05). In presence of organic matter, nanoemulsions (0.48%) reduced S. Enteritidis counts by ∼ 2 to 2.5 log cfu/egg as early as 1 min, (P < 0.05). Nanoemulsion wash also inhibited trans-shell migration of S. Enteritidis, as compared to control (P < 0.05). The nanoemulsion wash treatments did not affect shell color (P > 0.05). Results suggest that TCNE could potentially be used as an antimicrobial wash to reduce S. Enteritidis on shelled eggs, although further studies investigating the effect of TCNE wash treatments on organoleptic properties of eggs are necessary.


Assuntos
Anti-Infecciosos , Salmonella enteritidis , Humanos , Animais , Galinhas , Óvulo , Anti-Infecciosos/farmacologia , Ovos , Casca de Ovo , Microbiologia de Alimentos
12.
Eur Rev Med Pharmacol Sci ; 27(24): 11734-11745, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38164836

RESUMO

OBJECTIVE: The objective of this study was to clone and express the hepatitis B surface antigen gene (HBsAg) in Escherichia coli (E. coli), thereby aiming to develop potential local therapeutics for combating Hepatitis B virus (HBV) infection in the Pakistani community by producing HBsAg in E. coli. MATERIALS AND METHODS: Blood serum samples were collected from hepatitis B-infected patients, and their genomic DNA was extracted. Real-time and nested polymerase chain reaction (PCR) was performed to amplify the HBsAg gene. The gene of interest was cloned into the pET20b expression vector and transformed into E. coli BL21 (DE3) using Isopropyl ß-D-1-thiogalactopyranoside (IPTG) induction. The gene's precise size was confirmed with gene-specific external and internal primers (681 bp and 400 bp, respectively). RESULTS: The HBsAg gene was successfully sequenced and submitted to GenBank, exhibiting 98% homology with targeted HBV sequences worldwide. The expression of HBsAg protein was confirmed through silver staining, Coomassie staining, western blot, and dot blot analysis. CONCLUSIONS: The expressed protein clones are now available for further development as a local recombinant DNA vaccine to prevent hepatitis B viral infection in the local community.


Assuntos
Antígenos de Superfície da Hepatite B , Hepatite B , Humanos , Antígenos de Superfície da Hepatite B/genética , Escherichia coli/genética , Reação em Cadeia da Polimerase , Vírus da Hepatite B/genética , Clonagem Molecular , DNA Viral/genética
13.
Reprod Fertil ; 2023 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-37200204

RESUMO

Growth patterns and associated endocrine profiles were compared between dominant anovulatory (ADF) and ovulatory follicles (OvF) developing from different waves within and between menstrual cycles in women. Follicular mapping profiles of 49 healthy women of reproductive age and blood samples were obtained every 1-3 days. Sixty-three dominant follicles were classified into wave 1 (W1ADF; n = 8) and wave 2 (W2ADF; n = 6) anovulatory follicles and wave 2 (W2OvF; n = 33) and wave 3 (W3OvF; n = 16) ovulatory follicles. Comparisons were made between W1ADF and W2ADF, W2ADF and W2OvF, and W2OvF and W3OvF. The waves were numbered 1, 2, or 3 based on when the waves emerged relative to the preceding ovulation. W1ADF emerged closer to the preceding ovulation, and W2ADF emerged in the late luteal or early follicular phase. The interval from emergence to maximum diameter was shorter for W2ADF than W1ADF and for W3OvF than W2OvF. Selection of W3OvF occurred at a smaller diameter compared to W2OvF. W1ADF regressed at a faster rate than W2ADF. Also, W1ADF were associated with lower mean FSH and higher mean estradiol than W2ADF. In contrast, W3OvF were associated with higher FSH and LH compared to W2OvF. However, W2OvF were associated with higher progesterone than W3OvF. This study contributes to the understanding of the physiologic mechanisms underlying selection of the dominant follicle, ovulation, and pathophysiology of anovulation in women, as well as optimization of ovarian stimulation protocols for assisted reproduction.

14.
Mol Biol Rep ; 39(12): 10595-602, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23053958

RESUMO

The performance of birds appears to vary among the flock of growing broilers which may in part be due to variation in their gut microbiota. In the view of poultry industry, it is desirable to minimise such variation. We investigated metagenomic profile of fecal bacteria in birds with high and low feed conversion ratio (FCR) to identify microbial community linked to low and high FCR by employing high throughput pyrosequencing of 16S rRNA genomic targets. Therefore feeding trial was investigated in order to identify fecal bacteria consistently linked with better feed conversion ratio in bird performance as measured by body weight gain. High-throughput 16S rRNA gene based pyrosequencing was used to provide a comparative analysis of fecal microbial diversity. The fecal microbial community of birds was predominated by Proteobacteria (48.04 % in high FCR and 49.98 % in low FCR), Firmicutes (26.17 % in high FCR and 36.23 % in low FCR), Bacteroidetes (18.62 % in high FCR and 11.66 % in low FCR), as well as unclassified bacteria (15.77 % in high FCR and 14.29 % in low FCR), suggesting that a large portion of fecal microbiota is novel and could be involved in currently unknown functions. The most prevalent bacterial classes in high FCR and low FCR were Gammaproteobacteria, Clostridia and Bacteroidia. However in low FCR birds Phascolarctobacterium, Faecalibacterium and Clostridium predominated among the Clostridia. In FCR comparison of fecal bacteria, about 36 genera were differentially abundant between high and low FCR birds. This information could be used to formulate effective strategies to improve feed efficiency and feed formulation for optimal gut health.


Assuntos
Ração Animal , Galinhas/microbiologia , Fezes/microbiologia , Sequenciamento de Nucleotídeos em Larga Escala/métodos , Metagenoma/genética , RNA Ribossômico 16S/genética , Análise de Sequência de DNA/métodos , Animais , Bactérias/genética , Galinhas/crescimento & desenvolvimento , Feminino , Masculino , Filogenia , Temperatura
16.
J Wound Care ; 21(2): 88-90, 92-5, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22584528

RESUMO

Wound healing is a complex process that is influenced by both intrinsic and extrinsic factors, and it is becoming increasingly complex with the latest treatment methods and investigations of wound nature. The term 'wound healing' covers all types of wounds, burns and ulcerations. There is a considerable global variation in the treatment of acute and chronic wounds, therefore, establishing a standardised, best way to manage wounds may not be possible. Complete wound healing, which includes restoration of function, is hardly ever achieved in those disfigured by wounds, especially when one includes the appearance of scarred skin or an amputation.


Assuntos
Concentração de Íons de Hidrogênio , Curativos Oclusivos , Soluções/química , Cicatrização , Materiais Biocompatíveis/administração & dosagem , Calibragem , Humanos , Soluções Isotônicas , Ferimentos e Lesões/terapia
17.
QJM ; 115(10): 661-664, 2022 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-35143660

RESUMO

BACKGROUND: Here we detail our experience of managing patients found to have a neuroendocrine neoplasm (NEN) whilst on immunosuppression for a transplanted organ. AIM: We aimed to quantify the behaviour of NENs under solid-organ transplant-related immunosuppression. DESIGN: This was an observational, retrospective case series. METHODS: Ten patients were identified from a prospectively kept database. Three were excluded. RESULTS: Four patients received a liver, two a kidney, and one a heart transplant. All but one received calcineurin-based immunosuppression. NENs were found in five patients post-transplant: one had surgery for transverse colonic neuroendocrine carcinoma NEC (pT4N1M0, Ki67 60%), was cancer-free after four years; one had cold biopsy of duodenal NEN (pT1N0M0, Ki67 2%), cancer-free at four months; one 7 mm pancreatic NEN (pT1N0M0), untreated and stable for seven years; one small-bowel NEN with mesenteric metastasis (pTxNxM1), alive four years after diagnosis; and one untreated small-bowel NEN with mesenteric metastasis, stable at 1 year after liver transplantation. Two NENs were discovered pre-transplant, one pancreatic NEN (pT1N0M0, Ki67 5%), remains untreated and stable at three years. One gastric NEN (type 3, pT1bN0M0, Ki67 2%) remains stable without treatment for two years. CONCLUSIONS: NENs demonstrate indolent behaviour in the presence of transplant-related immunosuppression.


Assuntos
Tumores Neuroendócrinos , Humanos , Tumores Neuroendócrinos/complicações , Tumores Neuroendócrinos/cirurgia , Tumores Neuroendócrinos/patologia , Antígeno Ki-67 , Estudos Retrospectivos , Calcineurina , Terapia de Imunossupressão
18.
BMJ Case Rep ; 15(3)2022 Mar 09.
Artigo em Inglês | MEDLINE | ID: mdl-35264381

RESUMO

Acquired haemophilia A (AHA) is a rare bleeding disorder with high morbidity and mortality, but it is eminently treatable if diagnosis and treatment are prompt. We report a case of AHA in Southeast Asia following the administration of the Pfizer-BioNTech COVID-19 vaccine. A man in his 80s developed multiple bruises 2 weeks after his first dose of the COVID-19 vaccine. Diagnosis was delayed due to his cognitive impairment and low clinical suspicion. This led to a representation with worsening ecchymosis, a left thigh haematoma and symptomatic anaemia. Laboratory testing was notable for an isolated prolongation of the activated partial thromboplastin time, which remained uncorrected in the mixing test. Further testing confirmed the presence of factor VIII (FVIII) inhibitors and low FVIII titres of 6.7%. He responded to treatment with intravenous methylprednisolone and recombinant activated FVII. Screening for autoimmune diseases and malignancies was negative.


Assuntos
COVID-19 , Hemofilia A , Sudeste Asiático , Vacina BNT162 , COVID-19/prevenção & controle , Vacinas contra COVID-19/efeitos adversos , Fator VIII/uso terapêutico , Hemofilia A/diagnóstico , Hemofilia A/tratamento farmacológico , Hemofilia A/etiologia , Humanos , Masculino , SARS-CoV-2
19.
Diabetes Metab Syndr ; 16(9): 102587, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36055167

RESUMO

INTRODUCTION: Insulin is one of the commonly prescribed glucose lowering agents in diabetes. Hypoglycemia is the most common complication, and severe hypoglycemia is the most serious complication of insulin therapy. Almost half of all severe hypoglycemia episodes (HEs) occur at night. However, patients are often unaware of their nocturnal hypoglycaemia (NH) risk. Additionally, both healthcare professionals and patients find it difficult to manage NH. The purpose of this expert group meeting is to improve NH awareness and provide guidance for the physicians to recognize and manage NH. METHOD: The panel of experts in an e-board deliberated extensively upon the available literature and guidelines on hypoglycemia and NH discussed the consensus on definition, detection, reporting, monitoring, treatment, and optimization of therapy in NH. RESULT: & Conclusion: Though there are many guidelines on the management of HEs in patients with diabetes, very few touch the topic of NH. This scientific advisory on management of NH in insulin treated patients with diabetes is formulated to address this gap in understanding regarding management of NH. The experts provide recommendations for the nocturnal window, defining NH based on blood glucose values, recognition, prevention and management of NH.


Assuntos
Diabetes Mellitus Tipo 1 , Hipoglicemia , Humanos , Insulina/efeitos adversos , Glicemia , Diabetes Mellitus Tipo 1/complicações , Hipoglicemia/induzido quimicamente , Hipoglicemia/prevenção & controle , Automonitorização da Glicemia/efeitos adversos , Glucose , Hipoglicemiantes/efeitos adversos
20.
Diabetologia ; 54(7): 1710-9, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21455730

RESUMO

AIMS/HYPOTHESIS: We quantified the effect of ADRA2A (encoding α-2 adrenergic receptor) variants on metabolic traits and type 2 diabetes risk, as reported in four studies. METHODS: Genotype data for ADRA2A single nucleotide polymorphisms (SNPs) rs553668 and rs10885122 were analysed in >17,000 individuals (1,307 type 2 diabetes cases) with regard to metabolic traits and type 2 diabetes risk. Two studies (n = 9,437), genotyped using the Human Cardiovascular Disease BeadChip, provided 12 additional ADRA2A SNPs. RESULTS: Rs553668 was associated with per allele effects on fasting glucose (0.03 mmol/l, p = 0.016) and type 2 diabetes risk (OR 1.17, 95% CI 1.04-1.31; p = 0.01). No significant association was observed with rs10885122. Of the 12 SNPs, several showed associations with metabolic traits. Overall, after variable selection, rs553668 was associated with type 2 diabetes risk (OR 1.38, 95% CI 1.09-1.73; p = 0.007). rs553668 (per allele difference 0.036 mmol/l, 95% CI 0.008-0.065) and rs17186196 (per allele difference 0.066 mmol/l, 95% CI 0.017-0.115) were independently associated with fasting glucose, and rs17186196 with fasting insulin and HOMA of insulin resistance (4.3%, 95% CI 0.6-8.1 and 4.9%, 95% CI 1.0-9.0, respectively, per allele). Per-allele effects of rs491589 on systolic and diastolic blood pressure were 1.19 mmHg (95% CI 0.43-1.95) and 0.61 mmHg (95% CI 0.11-1.10), respectively, and those of rs36022820 on BMI 0.58 kg/m(2) (95% CI 0.15-1.02). CONCLUSIONS/INTERPRETATION: Multiple ADRA2A SNPs are associated with metabolic traits, blood pressure and type 2 diabetes risk. The α-2 adrenergic receptor should be revisited as a therapeutic target for reduction of the adverse consequences of metabolic trait disorders and type 2 diabetes.


Assuntos
Glicemia/metabolismo , Pressão Sanguínea/fisiologia , Índice de Massa Corporal , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/genética , Jejum/sangue , Receptores Adrenérgicos alfa 2/genética , Idoso , Feminino , Predisposição Genética para Doença/genética , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único/genética , Estudos Prospectivos
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