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1.
BJOG ; 131(9): 1181-1196, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38450853

RESUMEN

BACKGROUND: Systematic reviews and meta-analyses are instrumental in shaping clinical practice. However, their findings can sometimes be marred by discrepancies and potential biases, thereby diluting the strength of the evidence presented. Umbrella reviews serve to comprehensively assess and synthesise these reviews, offering a clearer insight into the quality of the evidence presented. In the context of the relationship between sperm DNA fragmentation (SDF) and assisted conception outcomes, there is a divergence in the literature. Some reviews suggest a clear cause-and-effect linkage, whereas others present conflicting or inconclusive results. OBJECTIVES: In this umbrella review we aimed to synthesise the evidence collated in systematic reviews and meta-analyses summarising the association of SDF with assisted reproductive technology (ART) outcomes. SEARCH STRATEGY: After preregistration (https://doi.org/10.17605/OSF.IO/6JHDP), we performed a comprehensive search of the PubMed, Scopus, Cochrane Library, Web of Science and Embase databases. We conducted a search for systematic reviews on the association between SDF and ART without any restrictions on language or publication date. SELECTION CRITERIA: Systematic reviews and meta-analyses assessing the association between SDF and ART outcomes were eligible. DATA COLLECTION AND ANALYSIS: We assessed the quality of the included reviews using AMSTAR 2 and ROBIS, and determined the degree of overlap of primary studies between reviews estimating the corrected covered area (CCA), adjusted for structural missingness. We evaluated the most recent reviews assessing the association of SDF with live birth, pregnancy, miscarriage, implantation, blastulation and fertilisation. The synthesis of evidence was harmonised across all included quantitative syntheses, re-estimating the odds ratio (eOR) in random-effects meta-analyses with 95% confidence intervals (95% CIs) and 95% prediction intervals (95% PIs). We categorised the evidence strength into convincing, highly suggestive, suggestive, weak or nonsignificant, according to the meta-analysis re-estimated P-value, total sample size, I2 statistic for heterogeneity, small study effect, excess significance bias and the largest study significance. MAIN RESULTS: We initially captured and screened 49 332 records. After excluding duplicate and ineligible articles, 22 systematic reviews, 15 of which were meta-analyses, were selected. The 22 reviews showed a moderate degree of overlap (adjusted CCA 9.2%) in their included studies (overall n = 428, with 180 unique studies). The 15 meta-analyses exhibited a high degree of overlap (adjusted CCA = 13.6%) in their included studies (overall n = 274, with 118 unique studies). AMSTAR 2 categorised the quality of evidence in 18 reviews as critically low and the quality of evidence in four reviews as low. ROBIS categorised all the reviews as having a high risk of bias. The re-estimated results showed that the association of SDF with live birth was weak in one and nonsignificant in four meta-analyses. Similarly, the association of SDF with pregnancy, miscarriage, implantation, blastulation and fertilisation was also weak or nonsignificant. The association of high SDF with different ART outcomes was also weak or nonsignificant for different interventions (IVF, ICSI and IUI) and tests. CONCLUSIONS: This umbrella review did not find convincing or suggestive evidence linking SDF with ART outcomes. Caution should be exercised in making any claims, policies or recommendations concerning SDF.


Asunto(s)
Fragmentación del ADN , Técnicas Reproductivas Asistidas , Espermatozoides , Humanos , Embarazo , Femenino , Masculino , Índice de Embarazo , Metaanálisis como Asunto , Revisiones Sistemáticas como Asunto
2.
Ann Surg Oncol ; 30(8): 4775-4780, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37210451

RESUMEN

BACKGROUND: Hepatic artery infusion pump (HAIP) therapy has become increasingly commonplace in the treatment of intrahepatic tumors. When combined with standard chemotherapy, HAIP therapy demonstrates a higher response rate than chemotherapy alone. Biliary sclerosis is observed in up to 22 % of patients, for whom no treatment has been standardized. This report describes orthotopic liver transplantation (OLT) both as a treatment for HAIP-induced cholangiopathy and as a possible definitive oncologic treatment after HAIP-bridging therapy. METHODS: A retrospective study reviewed patients who had undergone HAIP placement followed by OLT at the authors' institution. Patient demographics, neoadjuvant treatment, and postoperative outcomes were reviewed. RESULTS: Seven OLTs were performed for patients with prior HAIP placement. The majority were women (n = 6), and the median age was 61 years (range, 44.5-65.5 years). Transplantation was performed for five patients due to biliary complications secondary to HAIP and two patients because of residual tumor after HAIP therapy. All the OLTs had difficult dissections due to adhesions. Because of HAIP-induced damage, atypical arterial anastomoses were required in six patients (2 patients used a recipient common hepatic artery below the gastroduodenal artery takeoff; 2 patients used recipient splenic arterial inflow; 1 patient used the junction of the celiac and splenic arteries; and 1 patient used the celiac cuff). The one patient with standard arterial reconstruction experienced an arterial thrombosis. The graft was salvaged with thrombolysis. Biliary reconstruction was duct-to-duct in five cases and Roux-en-Y in two cases. CONCLUSIONS: The OLT procedure is a feasible treatment option for end-stage liver disease after HAIP therapy. Technical considerations include a more challenging dissection and an atypical arterial anastomosis.


Asunto(s)
Arteria Hepática , Trasplante de Hígado , Humanos , Masculino , Femenino , Persona de Mediana Edad , Arteria Hepática/cirugía , Trasplante de Hígado/métodos , Estudios Retrospectivos , Hepatectomía , Bombas de Infusión Implantables
3.
J Cancer Educ ; 38(4): 1215-1223, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-36595214

RESUMEN

Chemotherapy can be challenging and overwhelming for patients, but when patients are knowledgeable about chemotherapy, their comfort level, overall satisfaction, and coping improve. It is currently unknown whether patients prefer information about chemotherapy to be provided by specific care team members and whether demographic characteristics affect learning preferences. We developed a 31-question questionnaire that asked patients when chemotherapy information was discussed and who they wanted that information to come from. The questionnaire was given to 50 patients who had completed 1 cycle of chemotherapy. Patients were evenly distributed among age categories of 45 to 64 years, 65 to 74 years, and 75 years or older. Thirty participants (60%) were women, 33 (66%) had high school degrees, and 23 (46%) were receiving their first chemotherapy regimen. Sixty percent of patients best understood goals of care from oncologists, 70% wanted goals of care to come from oncologists, and 61% best understood and wanted to understand logistics of chemotherapy from oncologists. Sixty-six percent of patients understood adverse effects when they were explained by nursing staff, and 56% wanted explanations of adverse effects to come from nursing staff. Patients did not prefer a specific care team member or information source when receiving financial cost information. Patients often preferred to receive chemotherapy information from their oncologist; however, other members of the care team also provided information to patients in a way that was understood.


Asunto(s)
Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos , Pacientes , Humanos , Femenino , Persona de Mediana Edad , Masculino , Encuestas y Cuestionarios , Planificación de Atención al Paciente , Grupo de Atención al Paciente
4.
Am J Transplant ; 22(1): 58-70, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34379880

RESUMEN

Antioxidant defence mechanisms, such as the nuclear factor-erythroid 2-related-factor-2 (NRF2) axis, are integral to oxidative stress responses and ischemic injury. Hepatic antioxidant capacity is contingent on parenchymal quality, and there is a need to develop new insights into key molecular mechanisms in marginal liver allografts that might provide therapeutic targets. This study examines the clinical relevance of NRF2 in donor livers and its response to normothermic machine perfusion (NMP). Discarded donor livers (n = 40) were stratified into a high NRF2 and low NRF2 group by quantifying NRF2 expression. High NRF2 livers had significantly lower transaminase levels, hepatic vascular inflammation and peri-portal CD3+ T cell infiltration. Human liver allografts (n = 8) were then exposed to 6-h of NMP and high NRF2 livers had significantly reduced liver enzyme alterations and improved lactate clearance. To investigate these findings further, we used a rat fatty-liver model, treating livers with an NRF2 agonist during NMP. Treated livers had increased NRF2 expression and reduced transaminase derangements following NMP compared to vehicle control. These results support the association of elevated NRF2 expression with improved liver function. Targeting this axis could have a rationale in future studies and NRF2 agonists may represent a supplemental treatment strategy for rescuing marginal donor livers.


Asunto(s)
Trasplante de Hígado , Daño por Reperfusión , Aloinjertos , Animales , Hígado , Factor 2 Relacionado con NF-E2 , Preservación de Órganos , Perfusión , Ratas
5.
Cancer Cell Int ; 22(1): 423, 2022 Dec 31.
Artículo en Inglés | MEDLINE | ID: mdl-36585652

RESUMEN

BACKGROUND: Breast cancer stem cells (BCSCs) have a crucial role in breast carcinogenesis, development, and progression. The aim of the current study is to characterize the BCSCs through the genetic profiling of different BCSCs phenotypic subsets to determine their related genetic pathways. METHODS: Fresh tumor tissue samples were obtained from 31 breast cancer (BC) patients for (1) Mammosphere culture. (2) Magnetic separation of the BCSCs subsets using CD24, CD44, and CD326 Microbeads. (3) Flow cytometry (FCM) assay using CD44, CD24, and EpCAM. (4) RT-PCR profiler Arrays using stem cell (SC) panel of 84 genes for four group of cells (1) CD44+/CD24-/EpCAM- BCSCs, (2) CD44+/CD24- /EpCAM+ BCSCs, (3) mammospheres, and (4) normal breast tissues. RESULTS: The BCSCs (CD44+/CD24-/EpCAM-) showed significant downregulation in 13 genes and upregulation in 15, where the CD44, GJB1 and GDF3 showed the maximal expression (P = 0.001, P = 0.003 and P = 0.007); respectively). The CD44+/CD24-/EpCAM+ BCSCs showed significant upregulation in 28 genes, where the CD44, GDF3, and GJB1 showed maximal expression (P < 0.001, P = 0.001 and P = 0.003; respectively). The mammospheres showed significant downregulation in 9 genes and a significant upregulation in 35 genes. The maximal overexpression was observed in GJB1 and FGF2 (P = 0.001, P = 0.001; respectively). The genes which achieved significant overexpression in all SC subsets were CD44, COL9A1, FGF1, FGF2, GDF3, GJA1, GJB1, GJB2, HSPA9, and KRT15. While significant downregulation in BMP2, BMP3, EP300, and KAT8. The genes which were differentially expressed by the mammospheres compared to the other BCSC subsets were CCND2, FGF3, CD4, WNT1, KAT2A, NUMB, ACAN, COL2A1, TUBB3, ASCL2, FOXA2, ISL1, DTX1, and DVL1. CONCLUSION: BCSCs have specific molecular profiles that differ according to their phenotypes which could affect patients' prognosis and outcome.

6.
Biochem Genet ; 60(6): 1963-1985, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-35182276

RESUMEN

Estrogen receptor-α (ESR1) single nucleotide polymorphisms (SNPs) have been related to breast cancer (BC) susceptibility. In this retrospective study we investigated ESR1 SNPs in association with survival and treatment response in BC patients. Seven ESR1 SNPs were genotyped using TaqMan probe assay in 100 formalin-fixed paraffin embedded blocks of Egyptian ER+BC patients. Log-binomial regression was used to assess the association of 5 ESR1 SNPs with relative risk of non-response to adjuvant-hormonal treatment. We compared the performance of five machine learning classification models for prediction of treatment response. Predictive models were developed using rs1801132, rs2228480, and rs9322354 that were significantly associated with increased risk for non-response along with the relevant clinical features. Survival analysis was performed to detect prognostic significance of ESR1 SNPs in ESR+BC patients. rs1801132 (C), rs2228480 (A), and rs9322354 (G) minor alleles significantly increased the risk of non-response to tamoxifen by more than 81, 84, and 117%, respectively, in ER+BC patients on anthracycline/anthracycline-taxanes-based chemotherapy. Multivariate Cox regression survival analysis revealed that rs1801132 (C) and large tumor size were independent predictors for poor survival outcome in ER+BC. The best response predictive model was a combination random forest, K-nearest neighbor, and decision tree having an area under the curve of 0.94 and an accuracy of 90.8%. Our proposed predictive model based on ESR1 rs1801132, rs2228480, and rs9322354 SNPs represents a promising genetic risk stratification for selection patients who could benefit from tamoxifen therapy in such a way that might facilitate personalized medicine required to improve ER+BC patients' outcome.


Asunto(s)
Neoplasias de la Mama , Receptores de Estrógenos , Femenino , Humanos , Antraciclinas/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/genética , Neoplasias de la Mama/patología , Polimorfismo de Nucleótido Simple , Receptores de Estrógenos/genética , Estudios Retrospectivos , Factores de Riesgo , Tamoxifeno/uso terapéutico
7.
HPB (Oxford) ; 24(4): 461-469, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-34465528

RESUMEN

BACKGROUND: Traditionally, curative resection was considered the cornerstone of treatment for perihilar cholangiocarcinoma. More recently, liver transplantation (LT) offered an alternative for patients with unresectable disease. The purpose of this study was to assess our experience with perihilar cholangiocarcinoma and LT. METHODS: A perihilar cholangiocarcinoma protocol was commenced in 2006 whereby diagnosed patients were enrolled onto an institutional registry for LT consideration. Data on patient progression and oncologic outcomes were assessed. RESULTS: Fifty-eight patients were initially enrolled onto the protocol and 38 proceeded to LT following neoadjuvant chemoradiation (mean age 55.6 ± 11.4 years). Mean time to LT was 3.7 ± 2 months and, among those transplanted, 14 (37%) had underlying primary sclerosing cholangitis (PSC). Thirteen (34%) patients developed malignant recurrence and there were no differences in disease recurrence between PSC (n = 3) and non-PSC (n = 10) patients (p = 0.32). Overall patient survival was 91%, 58% and 52% at 1-, 3- and 5-years corresponding with 81%, 52% and 46% graft survival, respectively. CONCLUSION: Rigorous patient selection and chemoradiation treatment algorithms can be highly effective in treating perihilar cholangiocarcinoma. For appropriately selected candidates, LT can provide a 52% 5-year survival for patients who would otherwise have no surgical treatment option.


Asunto(s)
Neoplasias de los Conductos Biliares , Colangiocarcinoma , Tumor de Klatskin , Trasplante de Hígado , Adulto , Anciano , Neoplasias de los Conductos Biliares/cirugía , Conductos Biliares Intrahepáticos/patología , Colangiocarcinoma/patología , Humanos , Tumor de Klatskin/cirugía , Trasplante de Hígado/efectos adversos , Persona de Mediana Edad , Recurrencia Local de Neoplasia
8.
HPB (Oxford) ; 24(7): 1026-1034, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-34924293

RESUMEN

BACKGROUND: Domino liver transplantation (DLT) utilizes a phenotypically normal explant from select recipients as a donor graft in another patient. The procedure is not widely employed and remains restricted to a small number of centers. The purpose of this study was to assess the national profile of DLT in the United States (US) and evaluate current survival outcomes. METHODS: The United Network for Organ Sharing (UNOS) database was queried for all liver transplants (LT) between 1996 and 2020. Outcomes of interest were long-term graft and patient survival. RESULTS: Of 181,976 LTs performed nationally during the study period, 185 (0.1%) were DLTs. Amyloidosis and maple syrup urine disease (MSUD) accounted for 83% of dominoed allografts. Out of 210 explants with amyloidosis, 103 (49%) were dominoed into secondary recipients. Only 50 (22%) of all MSUD explants (n = 227) were dominoed. Graft survival was 79%, 73% and 53% at 3-, 5- and 10-years, respectively, for DLT recipients. Overall patient survival was 83%, 76% and 57% at 3-, 5- and 10-years. CONCLUSION: Despite excellent long-term survival outcomes, DLT allografts comprise a very small percentage of the liver donor pool. A large proportion of potential DLTs may be unconscionably excluded despite shortages in deceased donor organs.


Asunto(s)
Amiloidosis , Trasplante de Hígado , Enfermedad de la Orina de Jarabe de Arce , Supervivencia de Injerto , Humanos , Trasplante de Hígado/efectos adversos , Trasplante de Hígado/métodos , Donadores Vivos , Receptores de Trasplantes , Estados Unidos
9.
Am J Transplant ; 21(11): 3573-3582, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34132037

RESUMEN

Liver transplantation (LT) is a complex operation that most transplant surgeons learn in fellowship. Training varies as there is lack of objective data that can be used to standardize teaching. We performed a retrospective review of our adult LT database with aim of looking at fellow's experience. Using American Society of Transplant Surgery cutoff of, at least 45 LT during fellowship, data for first 45 LT were compared to LT 45-90. Fellow's cases were also clustered in sequential groups of 15 LT and analyzed to estimate the learning curve (LC). Comparison of LT 1-45 with LT 46-90 showed significantly lower total operative times (TOT) (324 vs. 344 min) and warm ischemia times (WIT) (28 vs. 31 min) in the 45-90 group. Rates of biliary complications (23.8% vs. 16.4%) and bile leaks alone (10.3% vs. 5.5%) were significantly higher for first 45 LT. Analysis of fellows experience in sequential clusters of 15 LT showed decreasing TOT, WIT, biliary complications and rates of unplanned return to the OR with progression of fellowship. This study validates the current ASTS requirement of at least 45 LT. LC generated using these data can help individualize training and optimize outcomes through identification of areas in need of improvement.


Asunto(s)
Trasplante de Hígado , Adulto , Becas , Humanos , Curva de Aprendizaje , Donadores Vivos , Estudios Retrospectivos
10.
HPB (Oxford) ; 23(1): 127-133, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32561177

RESUMEN

BACKGROUND: Portal vein aneurysms (PVAs) are rare, though clinically challenging with post-operative mortality approaching 20% and no evidence-based treatment guidelines. We aim to describe our experience with PVAs and recommend optimum management strategies. METHODS: Demographics and clinical details of patients with PVAs admitted to our institution from 1984 to 2019 were reviewed. Clinical presentation, management and outcomes were analysed. RESULTS: PVAs were identified in 18 patients (median age 56 years, range 20-101 years; 13 female); 10 were incidental and 8 diagnosed during abdominal pain work-up. Median aneurysm diameter at diagnosis was 3.4 cm (1.8-5.5 cm), remaining unchanged at 3.5 cm (1.9-4.8 cm) during a 3.2-year follow-up (4 months-31 years). Aneurysm sites were the main portal vein (n = 12), porto-splenic-junction (n = 3), splenic-SMV-junction (n = 2) and right portal vein (n = 1). Thrombosis occurred in 4 patients; 3 developed clinically insignificant cavernous transformation. Two patients underwent surgery for abdominal pain. Postoperatively, one developed PV thrombosis and PVA recurrence occurred in the second. No aneurysm ruptures or mortalities occurred during follow-up. CONCLUSION: PVAs follow a clinically indolent course with structural stability and minimal complications over time. Non-operative management is feasible for most patients. Abdominal pain, large size or thrombosis don't appear to confer additional risks and should not, in isolation, merit surgical intervention.


Asunto(s)
Aneurisma , Trombosis , Adulto , Anciano , Anciano de 80 o más Años , Aneurisma/diagnóstico por imagen , Aneurisma/cirugía , Estudios de Factibilidad , Femenino , Humanos , Persona de Mediana Edad , Vena Porta/diagnóstico por imagen , Vena Porta/cirugía , Resultado del Tratamiento , Adulto Joven
11.
Niger Postgrad Med J ; 28(2): 75-80, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34494591

RESUMEN

BACKGROUND: A lot has been documented about the pathophysiology and clinical presentation of coronavirus disease 2019 (COVID-19). We compared the clinical features of real-time reverse transcriptase polymerase-chain-reaction (RT-PCR) confirmed COVID-19 positive and negative patients admitted in Lagos State. METHODS: Medical records of all patients admitted in 15 isolation centres across Lagos state between 27th February 2020 and 30th September 2020, were abstracted and reviewed. We compared the clinical features, co-morbidities and clinical outcomes of COVID-19 positive and negative patients. RESULTS: A total of 3157 records of patients admitted in 15 isolation centres in Lagos State were reviewed of which 302 (9.6%) tested negative to RT-PCR COVID-19. There was no gender difference between COVID-19 positive and negative patients (P = 0.687). The average age of the negative patients was higher (46.8 ± 18.3 years) than positive patients (41.9 ± 15.5 years) (P < 0.001). A higher proportion of the COVID-19 negative patients had co-morbidity (38.1% vs. 27.8%), were symptomatic (67.5% vs. 44.6%) and higher mortality (21.9% vs. 6.6%) than positive patients (P < 0.001). The percentages with hypertension (26.2% vs. 21.0%, P = 0.038), diabetes (17.2% vs. 9.4%, P < 0.001), cardiovascular disease (2.3% vs. 0.9%, P < 0.029) and cancer (2.3% vs. 0.5%, P < 0.002) were more among patients without COVID-19. More patients without COVID-19 presented with fever (36.1% vs. 18.8%), cough (33.7% vs. 23.1%) and breathlessness (40.8% vs. 16.1%) than the positive patients (P < 0.001). CONCLUSION: Anosmia and dysgeusia were strongly associated with COVID-19. Clinical decision-making should only be used to prioritise testing and isolation of patients suspected to have COVID-19, especially in settings with limited access to diagnostic kits.


Asunto(s)
COVID-19 , Adulto , Anciano , Comorbilidad , Hospitalización , Humanos , Persona de Mediana Edad , Nigeria , SARS-CoV-2
12.
Am J Transplant ; 20(11): 3081-3088, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32659028

RESUMEN

The coronavirus disease 2019 (COVID-19) pandemic is a rapidly changing circumstance with dramatic policy changes and universal efforts to deal with the initial crisis and minimize its consequences. To identify changes to organ donation and transplantation during this time, an anonymous web-based survey was distributed to 19 select organ procurement organizations (OPOs) throughout the United States comparing 90-day activity during March-May 2020 and March-May 2019. Seventeen OPOs responded to the survey (response rate of 89.5%). Organ authorization decreased by 11% during the current pandemic (n = 1379 vs n = 1552, P = .0001). Organ recovery for transplantation fell by 17% (P = .0001) with a further 18% decrease in the number of organs transplanted (P = .0001). Donor cause of death demonstrated a 4.5% decline in trauma but a 35% increase in substance abuse cases during the COVID-19 period. All OPOs reported significant modifications in response to the pandemic, limiting the onsite presence of staff and transitioning to telephonic approaches for donor family correspondence. Organ donation during the current climate has seen significant changes and the long-term implications of such shifts remain unclear. These trends during the COVID-19 era warrant further investigation to address unmet needs, plan for a proportionate response to the virus and mitigate the collateral impact.


Asunto(s)
COVID-19/epidemiología , Trasplante de Órganos/estadística & datos numéricos , Pandemias , SARS-CoV-2 , Donantes de Tejidos/provisión & distribución , Obtención de Tejidos y Órganos/organización & administración , Humanos , Puerto Rico/epidemiología , Estudios Retrospectivos , Estados Unidos/epidemiología
13.
Nanotechnology ; 31(36): 365102, 2020 Sep 04.
Artículo en Inglés | MEDLINE | ID: mdl-32045897

RESUMEN

Alzheimer's disease (AD) is an irreversible neurodegenerative disease. Recent identification of AD biomarkers has led to the diagnosis of AD before the onset of dementia. It has been shown that Drosophila melanogaster is a valuable model for studying human neurodegeneration, including AD. According to its properties, curcumin shows promising potential for the diagnosis of AD. In order to improve its use, new formulations, including nanotechnology-based delivery systems, have been applied. The current study aims to diagnose AD by detecting the accumulation of amyloid beta-peptide via carbon-dot-curcumin nanoparticle conjugation in Drosophila. The accumulation of amyloid beta-peptide has been detected via the conjugate using the fluorescence imaging technique. These results suggest that carbon-dot-curcumin nanoparticle conjugation could be used as a diagnostic tool for AD.


Asunto(s)
Enfermedad de Alzheimer/diagnóstico por imagen , Péptidos beta-Amiloides/metabolismo , Carbono/química , Curcumina/administración & dosificación , Enfermedad de Alzheimer/metabolismo , Péptidos beta-Amiloides/química , Animales , Biomarcadores/metabolismo , Curcumina/química , Curcumina/farmacología , Modelos Animales de Enfermedad , Drosophila melanogaster , Diagnóstico Precoz , Humanos , Microscopía Electrónica de Transmisión , Modelos Moleculares , Conformación Proteica , Puntos Cuánticos
14.
Virol J ; 16(1): 132, 2019 11 11.
Artículo en Inglés | MEDLINE | ID: mdl-31711510

RESUMEN

BACKGROUND: Human pegivirus (HPgV) is structurally similar to hepatitis C virus (HCV) and was discovered 20 years ago. Its distribution, natural history and exact rule of this viral group in human hosts remain unclear. Our aim was to determine, by deep next-generation sequencing (NGS), the entire genome sequence of HPgV that was discovered in an Egyptian patient while analyzing HCV sequence from the same patient. We also inspected whether the co-infection of HCV and HPgV will affect the patient response to HCV viral treatment. To the best of our knowledge, this is the first report for a newly isolated HPgV in an Egyptian patient who is co-infected with HCV. CASE PRESENTATION: The deep Next Generation Sequencing (NGS) technique was used to detect HCV sequence in hepatitis C patient's plasma. The results revealed the presence of HPgV with HCV. This co-infection was confirmed using conventional PCR of the HPgV 5' untranslated region. The patient was then subjected to direct-acting-antiviral treatment (DAA). At the end of the treatment, the patient showed a good response to the HCV treatment (i.e., no HCV-RNA was detected in the plasma), while the HPgV-RNA was still detected. Sequence alignment and phylogenetic analyses demonstrated that the detected HPgV was a novel isolate and was not previously published. CONCLUSION: We report a new variant of HPgV in a patient suffering from hepatitis C viral infection.


Asunto(s)
Coinfección/virología , Infecciones por Flaviviridae/virología , Flaviviridae/genética , Flaviviridae/aislamiento & purificación , Genoma Viral/genética , Hepacivirus/aislamiento & purificación , Hepatitis C/virología , Adulto , Antivirales/uso terapéutico , Coinfección/diagnóstico , Coinfección/tratamiento farmacológico , Egipto , Infecciones por Flaviviridae/diagnóstico , Infecciones por Flaviviridae/tratamiento farmacológico , Variación Genética , Hepacivirus/efectos de los fármacos , Hepacivirus/genética , Hepatitis C/diagnóstico , Hepatitis C/tratamiento farmacológico , Humanos , Masculino , Filogenia , ARN Viral/sangre , ARN Viral/genética , Resultado del Tratamiento
15.
Surgeon ; 17(3): 139-145, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30709680

RESUMEN

BACKGROUND: Improving the equity of surgical services is an important objective of all clinical programmes both local and overseas. Variations in access to care threaten to dismantle the structural paradigm of any health service and such information can aid in promoting quality and access to surgical services. The aim of this study was to explore the geographical variation in the utilisation of common general surgical procedures in Ireland as a measure of the population's access to surgical interventions. METHODS: Age- and gender-standardized rates for 6 common general surgical procedures were calculated for 28 geographic areas (counties) in the Republic of Ireland using data from the national Hospital Inpatient Enquiry System. Standard statistical indicators (systematic component of variation, coefficient of variation and extremal quotient) were used to measure the extent of regional variation. RESULTS: A total of 998,406 episodes of hospital care were included in the analysis. Large variation in utilisation was present between the studied counties; CV > 0.3 (range 19.4-31.2), SCV > 5 (range 5.2-14.6). Most procedures were utilised at substantially higher rates outside the larger cities (Dublin, Galway, Waterford). CONCLUSION: Variations stemming from inefficient and unequal access are important components and markers of modern health systems and should be minimal. County of residence appears to have a clear influence on a patients' inaccessibility to certain interventions. Our findings imply a need for improved access at a regional level by facilitating the integration of public policies and promoting services at the appropriate settings.


Asunto(s)
Utilización de Instalaciones y Servicios/estadística & datos numéricos , Cirugía General , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Disparidades en Atención de Salud/estadística & datos numéricos , Procedimientos Quirúrgicos Operativos/estadística & datos numéricos , Adolescente , Adulto , Anciano , Niño , Femenino , Humanos , Irlanda , Masculino , Persona de Mediana Edad , Adulto Joven
19.
Surg Endosc ; 32(4): 1627-1635, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29404731

RESUMEN

BACKGROUND: Endoscopic ultrasound-guided gallbladder drainage is a novel method of treating acute cholecystitis in patients deemed too high risk for surgery. It involves endoscopic stent placement between the gallbladder and the alimentary tract to internally drain the infection and is an alternative to percutaneous cholecystostomy (PC). This meta-analysis assesses the clinical outcomes of high-risk patients undergoing endoscopic drainage with an acute cholecystoenterostomy (ACE) compared with PC in acute cholecystitis. METHODS: A literature search was performed using the preferred reporting items for systematic reviews and meta-analyses guidelines. Databases were searched for studies reporting outcomes of patients undergoing ACE or PC. Results were reported as mean differences or pooled odds ratios (OR) with 95% confidence intervals (95% CI). RESULTS: A total of 1593 citations were reviewed; five studies comprising 495 patients were ultimately selected for analysis. There were no differences in technical or clinical success rates between the two groups on pooled meta-analysis. ACE had significantly lower post-procedural pain scores (mean difference - 3.0, 95% CI - 2.3 to - 3.6, p < 0.001, on a 10-point pain scale). There were no statistically significant differences in procedure complications between groups. Re-intervention rates were significantly higher in the PC group (OR 4.3, 95% CI 2.0-9.3, p < 0.001). CONCLUSION: ACE is a promising alternative to PC in high-risk patients with acute cholecystitis, with equivalent success rates, improved pain scores and lower re-intervention rates, without the morbidities associated with external drainage.


Asunto(s)
Colecistitis Aguda/cirugía , Colecistostomía , Drenaje/métodos , Endoscopía/métodos , Endosonografía/métodos , Colecistostomía/métodos , Humanos , Resultado del Tratamiento
20.
Dig Surg ; 34(3): 180-185, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-27931029

RESUMEN

BACKGROUND: Until recently, a diagnosis of infected pancreatic necrosis (IPN) warranted necrosectomy, which was associated with high morbidity and mortality rates greater than 20%. Preoperative percutaneous drainage delayed the need for necrosectomy with improved outcomes. METHODS: In 2008, this institution changed its approach to the management of such cases opting instead for percutaneous drainage with selective deferred necrosectomy. A total of 38 consecutive patients with IPN from January 2008 to December 2014 were included. RESULTS: All 38 underwent percutaneous radiological drainage, and selective necrosectomy was performed on 15 where the infected necrosis did not completely resolve. Twenty-three patients did not require surgery and were managed with pancreatic drain insertion, optimal nutritional support and critical care interventions. Median peak Acute Physiology and Chronic Health Evaluation and Sequential Organ Failure Assessment scores were 10 (range 0-18) and 3 (range 0-10) prior to radiological intervention. Overall mortality was 5% (n = 2). CONCLUSION: This study demonstrates that radiological-guided drainage of infected pancreatic collections can, in most cases, prove curative and, if not, facilitates delayed surgical intervention with improved outcomes.


Asunto(s)
Drenaje , Pancreatitis Aguda Necrotizante/cirugía , Selección de Paciente , APACHE , Adulto , Anciano , Drenaje/efectos adversos , Drenaje/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Necrosis/cirugía , Pancreatitis Aguda Necrotizante/diagnóstico , Pancreatitis Aguda Necrotizante/microbiología , Radiología Intervencionista , Reoperación , Tomografía Computarizada por Rayos X , Adulto Joven
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