Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 386
Filtrar
Mais filtros

Intervalo de ano de publicação
1.
Ultrasound Obstet Gynecol ; 63(1): 44-52, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37774040

RESUMO

OBJECTIVES: Despite nearly universal prenatal ultrasound screening programs, congenital heart defects (CHD) are still missed, which may result in severe morbidity or even death. Deep machine learning (DL) can automate image recognition from ultrasound. The main aim of this study was to assess the performance of a previously developed DL model, trained on images from a tertiary center, using fetal ultrasound images obtained during the second-trimester standard anomaly scan in a low-risk population. A secondary aim was to compare initial screening diagnosis, which made use of live imaging at the point-of-care, with diagnosis by clinicians evaluating only stored images. METHODS: All pregnancies with isolated severe CHD in the Northwestern region of The Netherlands between 2015 and 2016 with available stored images were evaluated, as well as a sample of normal fetuses' examinations from the same region and time period. We compared the accuracy of the initial clinical diagnosis (made in real time with access to live imaging) with that of the model (which had only stored imaging available) and with the performance of three blinded human experts who had access only to the stored images (like the model). We analyzed performance according to ultrasound study characteristics, such as duration and quality (scored independently by investigators), number of stored images and availability of screening views. RESULTS: A total of 42 normal fetuses and 66 cases of isolated CHD at birth were analyzed. Of the abnormal cases, 31 were missed and 35 were detected at the time of the clinical anatomy scan (sensitivity, 53%). Model sensitivity and specificity were 91% and 78%, respectively. Blinded human experts (n = 3) achieved mean ± SD sensitivity and specificity of 55 ± 10% (range, 47-67%) and 71 ± 13% (range, 57-83%), respectively. There was a statistically significant difference in model correctness according to expert-graded image quality (P = 0.03). The abnormal cases included 19 lesions that the model had not encountered during its training; the model's performance in these cases (16/19 correct) was not statistically significantly different from that for previously encountered lesions (P = 0.41). CONCLUSIONS: A previously trained DL algorithm had higher sensitivity than initial clinical assessment in detecting CHD in a cohort in which over 50% of CHD cases were initially missed clinically. Notably, the DL algorithm performed well on community-acquired images in a low-risk population, including lesions to which it had not been exposed previously. Furthermore, when both the model and blinded human experts had access to only stored images and not the full range of images available to a clinician during a live scan, the model outperformed the human experts. Together, these findings support the proposition that use of DL models can improve prenatal detection of CHD. © 2023 International Society of Ultrasound in Obstetrics and Gynecology.


Assuntos
Aprendizado Profundo , Cardiopatias Congênitas , Feminino , Recém-Nascido , Gravidez , Humanos , Cardiopatias Congênitas/diagnóstico por imagem , Cardiopatias Congênitas/epidemiologia , Diagnóstico Pré-Natal/métodos , Ultrassonografia Pré-Natal/métodos , Sensibilidade e Especificidade
2.
Clin Infect Dis ; 77(Suppl 7): S549-S559, 2023 12 20.
Artigo em Inglês | MEDLINE | ID: mdl-38118018

RESUMO

The Institute of Epidemiology, Disease Control and Research (IEDCR) conducts active, case-based national antimicrobial resistance (AMR) surveillance in Bangladesh. The Capturing Data on Antimicrobial Resistance Patterns and Trends in Use in Regions of Asia (CAPTURA) project accessed aggregated retrospective data from non-IEDCR study sites and 9 IEDCR sites to understand the pattern and extent of AMR and to use analyzed data to guide ongoing and future national AMR surveillance in both public and private laboratories. Record-keeping practices, data completeness, quality control, and antimicrobial susceptibility test practices were investigated in all laboratories participating in case-based IEDCR surveillance and laboratory-based CAPTURA sites. All 9 IEDCR laboratories recorded detailed case-based data (n = 16 816) in electronic format for a priority subset of processed laboratory samples. In contrast, most CAPTURA sites (n = 18/33 [54.5%]) used handwritten registers to store data. The CAPTURA sites were characterized by fewer recorded variables (such as patient demographics, clinical history, and laboratory findings) with 1 020 197 individual data, less integration of patient records with the laboratory information system, and nonuniform practice of data recording; however, data were collected from all available clinical samples. The analyses conducted on AMR data collected by IEDCR and CAPTURA in Bangladesh provide current data collection status and highlight opportunities to improve ongoing data collection to strengthen current AMR surveillance system initiatives. We recommend a tailored approach to conduct AMR surveillance in high-burden, resource-limited settings.


Assuntos
Antibacterianos , Farmacorresistência Bacteriana , Humanos , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Bangladesh/epidemiologia , Estudos Retrospectivos , Laboratórios
3.
J Phys Chem A ; 127(19): 4302-4316, 2023 May 18.
Artigo em Inglês | MEDLINE | ID: mdl-37146175

RESUMO

Glycolaldehyde, HOCH2CHO, is an important multifunctional atmospheric trace gas formed in the oxidation of ethylene and isoprene and emitted directly from burning biomass. The initial step in the atmospheric photooxidation of HOCH2CHO yields HOCH2CO and HOCHCHO radicals; both of these radicals react rapidly with O2 in the troposphere. This study presents a comprehensive theoretical investigation of the HOCH2CO + O2 and HOCHCHO + O2 reactions using high-level quantum chemical calculations and energy-grained master equation simulations. The HOCH2CO + O2 reaction results in the formation of a HOCH2C(O)O2 radical, while the HOCHCHO + O2 reaction yields (HCO)2 + HO2. Density functional theory calculations have identified two open unimolecular pathways associated with the HOCH2C(O)O2 radical that yield HCOCOOH + OH or HCHO + CO2 + OH products; the former novel bimolecular product pathway has not been previously reported in the literature. Master equation simulations based on the potential energy surface calculated here for the HOCH2CO + O2 recombination reaction support experimental product yield data from the literature and indicate that, even at total pressures of 1 atm, the HOCH2CO + O2 reaction yields ∼11% OH at 298 K.

4.
Angew Chem Int Ed Engl ; 58(38): 13499-13506, 2019 09 16.
Artigo em Inglês | MEDLINE | ID: mdl-31301096

RESUMO

Oxygenation is a fundamental transformation in synthesis. Herein, we describe the selective late-stage oxygenation of sulfur-containing complex molecules with ground-state oxygen under ambient conditions. The high oxidation potential of the active uranyl cation (UO22+ ) enabled the efficient synthesis of sulfones. The ligand-to-metal charge transfer process (LMCT) from O 2p to U 5f within the O=U=O group, which generates a UV center and an oxygen radical, is assumed to be affected by the solvent and additives, and can be tuned to promote selective sulfoxidation. This tunable strategy enabled the batch synthesis of 32 pharmaceuticals and analogues by late-stage oxygenation in an atom- and step-efficient manner.

5.
Nephrology (Carlton) ; 23(3): 279-286, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27943514

RESUMO

AIM: Living donor kidney is the main source of donor organs in low to middle income countries. We aimed to develop a living donor risk model that predicts graft and patient survival in an emerging economy. METHODS: We used data from the Sindh Institute of Urology and Transplantation (SIUT) database (n = 2283 recipients and n = 2283 living kidney donors, transplanted between 1993 and 2009) and conducted Cox proportional hazard analyses to develop a composite score that predicts graft and patient survivals. RESULTS: Donor factors age, creatinine clearance, nephron dose (estimated by donor/recipient body weight ratio) and human leukocyte antigen (HLA) match were included in the living donor risk model. The adjusted hazard ratios (HRs) for graft failures among those who received a kidney with living donor scores (reference to donor score of zero) of 1, 2, 3 and 4 were 1.14 (95%CI: 0.94-1.39), 1.24 (95%CI:1.03-1.49), 1.25 (95%CI:1.03-1.51) and 1.36 (95%CI:1.08-1.72) (P-value for trend =0.05). Similar findings were observed for patient survival. CONCLUSIONS: Similar to findings in high income countries, our study suggests that donor characteristics such as age, nephron dose, creatinine clearance and HLA match are important factors that determine the long-term patient and graft survival in low income countries. However, other crucial but undefined factors may play a role in determining the overall risk of graft failure and mortality in living kidney donor transplant recipients.


Assuntos
Países em Desenvolvimento/economia , Seleção do Doador , Sobrevivência de Enxerto , Falência Renal Crônica/cirurgia , Transplante de Rim/métodos , Doadores Vivos , Adolescente , Adulto , Aloenxertos , Bases de Dados Factuais , Técnicas de Apoio para a Decisão , Feminino , Humanos , Estimativa de Kaplan-Meier , Falência Renal Crônica/diagnóstico , Falência Renal Crônica/mortalidade , Transplante de Rim/efeitos adversos , Transplante de Rim/mortalidade , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Paquistão/epidemiologia , Complicações Pós-Operatórias/mortalidade , Modelos de Riscos Proporcionais , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
6.
Br J Biomed Sci ; 75(3): 139-144, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29893194

RESUMO

Background Type 2 diabetes mellitus (T2DM) is a global major health problem resulting from interaction of environmental and genetic factors, examples of the latter being KCNJ11 (coding for part of the ATP-sensitive potassium channel) and SDF-1ß (coding for chemokine CXCL12). Our case-control study was conducted to assess whether recessive, dominant or additive genotype model associations of KCNJ11 (E23K, rs5219) and SDF-1ß (G801A, rs1801157) were more strongly linked to type 2 diabetes. Subjects & Methods Genetic polymorphism analysis was performed by polymerase chain reaction-restriction fragment length polymorphism. Alleles and genotype frequencies between 200 cases and 200 controls were determined and compared. Results The dominant (EE v EK + KK, p = 0.022) and additive (EK v EE + KK, p = 0.021) models, but not the recessive model (KK v EE + EK, p = 0.727) of KCNJ11 were linked to diabetes. Similarly, the dominant (GG v GA + AA, p < 0.001) and additive (AG v GG + AA, p=<0.001) models, but not the recessive model (AA v AG + GG, p = 0.430) of SDF-1ß were linked to diabetes. The A allele (p = 0.006) of SDF-1ß was protective against the risk of T2DM. Conclusion Both dominant and additive models in both KCNJ11 (E23K, rs5219) and SDF-1ß (G801A, rs1801157) genetic polymorphisms are significantly associated with type 2 diabetes.


Assuntos
Quimiocina CXCL12/genética , Diabetes Mellitus Tipo 2/genética , Predisposição Genética para Doença , Canais de Potássio Corretores do Fluxo de Internalização/genética , Alelos , Diabetes Mellitus Tipo 2/patologia , Feminino , Estudos de Associação Genética , Humanos , Masculino , Pessoa de Meia-Idade , Polimorfismo de Fragmento de Restrição/genética , Fatores de Risco
7.
Hepatology ; 64(4): 1178-88, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27481548

RESUMO

UNLABELLED: The presence of an intrahepatic cholangiocarcinoma (iCCA) in a cirrhotic liver is a contraindication for liver transplantation in most centers worldwide. Recent investigations have shown that "very early" iCCA (single tumors ≤2 cm) may have acceptable results after liver transplantation. This study further evaluates this finding in a larger international multicenter cohort. The study group was composed of those patients who were transplanted for hepatocellular carcinoma or decompensated cirrhosis and found to have an iCCA at explant pathology. Patients were divided into those with "very early" iCCA and those with "advanced" disease (single tumor >2 cm or multifocal disease). Between January 2000 and December 2013, 81 patients were found to have an iCCA at explant; 33 had separate nodules of iCCA and hepatocellular carcinoma, and 48 had only iCCA (study group). Within the study group, 15/48 (31%) constituted the "very early" iCCA group and 33/48 (69%) the "advanced" group. There were no significant differences between groups in preoperative characteristics. At explant, the median size of the largest tumor was larger in the "advanced" group (3.1 [2.5-4.4] versus 1.6 [1.5-1.8]). After a median follow-up of 35 (13.5-76.4) months, the 1-year, 3-year, and 5-year cumulative risks of recurrence were, respectively, 7%, 18%, and 18% in the very early iCCA group versus 30%, 47%, and 61% in the advanced iCCA group, P = 0.01. The 1-year, 3-year, and 5-year actuarial survival rates were, respectively, 93%, 84%, and 65% in the very early iCCA group versus 79%, 50%, and 45% in the advanced iCCA group, P = 0.02. CONCLUSION: Patients with cirrhosis and very early iCCA may become candidates for liver transplantation; a prospective multicenter clinical trial is needed to further confirm these results. (Hepatology 2016;64:1178-1188).


Assuntos
Neoplasias dos Ductos Biliares/cirurgia , Carcinoma Hepatocelular/cirurgia , Colangiocarcinoma/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Idoso , Neoplasias dos Ductos Biliares/mortalidade , Neoplasias dos Ductos Biliares/patologia , Colangiocarcinoma/mortalidade , Colangiocarcinoma/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Estudos Prospectivos , Estudos Retrospectivos , Taxa de Sobrevida
8.
Pediatr Nephrol ; 32(9): 1489-1499, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-27848095

RESUMO

Urinary calculi are being recognized more frequently in children and the urinary bladder is the most common site for stone formation in the lower urinary tract. Bladder calculi are grouped into three basic categories: primary idiopathic/endemic, secondary, and migrant. The incidence of vesical calculi has declined significantly in the last 70 years in developed nations owing to improvements in nutrition and socioeconomic conditions, but it is still high in developing nations. Primary idiopathic/endemic bladder calculi typically occur in children, in the absence of urinary tract infection (UTI), urinary stasis, or foreign body, and diet lacking in animal proteins is the major contributor factor. Comprehensive preventive and treatment strategies are critical for improving the quality of life of diseased children, in addition to helping to eradicate, or at least decrease, the incidence of endemic bladder calculi in developing nations.


Assuntos
Doenças Endêmicas/prevenção & controle , Comportamento Alimentar , Proteínas de Carne , Qualidade de Vida , Cálculos da Bexiga Urinária/epidemiologia , Países em Desenvolvimento/estatística & dados numéricos , Doenças Endêmicas/estatística & dados numéricos , Humanos , Incidência , Bexiga Urinária/patologia
9.
Ir Med J ; 115(No.9): 678, 2022 10 20.
Artigo em Inglês | MEDLINE | ID: mdl-36920440
10.
Br J Surg ; 103(1): 14-26, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26522616

RESUMO

BACKGROUND: There is uncertainty regarding the safety of different volume replacement solutions. The aim of this study was systematically to review evidence of crystalloid versus colloid solutions, and to determine whether these results are influenced by trial design or clinical setting. METHODS: PubMed, Embase and the Cochrane Central Register of Controlled Trials were used to identify randomized clinical trials (RCTs) that compared crystalloids with colloids as volume replacement solutions in patients with traumatic injuries, those undergoing surgery and in critically ill patients. Adjusted odds ratios (ORs) for mortality and major morbidity including renal injury were pooled using fixed-effect and random-effects models. RESULTS: Some 59 RCTs involving 16 889 patients were included in the analysis. Forty-one studies (69 per cent) were found to have selection, detection or performance bias. Colloid administration did not lead to increased mortality (32 trials, 16 647 patients; OR 0·99, 95 per cent c.i. 0·92 to 1·06), but did increase the risk of developing acute kidney injury requiring renal replacement therapy (9 trials, 11 648 patients; OR 1·35, 1·17 to 1·57). Sensitivity analyses that excluded small and low-quality studies did not substantially alter these results. Subgroup analyses by type of colloid showed that increased mortality and renal replacement therapy were associated with use of pentastarch, and increased risk of renal injury and renal replacement therapy with use of tetrastarch. Subgroup analysis indicated that the risks of mortality and renal injury attributable to colloids were observed only in critically ill patients with sepsis. CONCLUSION: Current general restrictions on the use of colloid solutions are not supported by evidence.


Assuntos
Coloides/uso terapêutico , Estado Terminal/terapia , Hidratação/métodos , Soluções Isotônicas/uso terapêutico , Cuidados Pós-Operatórios/métodos , Soluções para Reidratação/uso terapêutico , Ferimentos e Lesões/terapia , Estado Terminal/mortalidade , Soluções Cristaloides , Humanos , Modelos Estatísticos , Ferimentos e Lesões/mortalidade
11.
Diabet Med ; 33(7): 976-84, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-26479152

RESUMO

AIMS: HNF1A gene mutations are the most common cause of maturity-onset diabetes of the young (MODY) in the UK. Persons with HNF1A-MODY display sensitivity to sulphonylurea therapy; however, the long-term efficacy is not established. There is limited literature as to the prevalence of micro- and macrovascular complications in this unique cohort. The aim of this study was to determine the natural progression and clinical management of HNF1A-MODY diabetes in a dedicated MODY clinic. METHODS: Sixty patients with HNF1A-MODY and a cohort of 60 BMI-, age-, ethnicity- and diabetes duration-matched patients with Type 1 diabetes mellitus participated in the study. All patients were phenotyped in detail. Clinical follow-up of the HNF1A-MODY cohort occurred on a bi-annual basis. RESULTS: Following a genetic diagnosis of MODY, the majority of the cohort treated with sulphonylurea therapy remained insulin independent at 84-month follow-up (80%). The HbA1c in the HNF1A-MODY group treated with sulphonylurea therapy alone improved significantly over the study period [from 49 (44-63) mmol/mol, 6.6 (6.2-7.9)% to 41 (31-50) mmol/mol, 5.9 (5-6.7)%; P = 0.003]. The rate of retinopathy was significantly lower than that noted in the Type 1 diabetes mellitus group (13.6 vs. 50%; P = 0.0001).There was also a lower rate of microalbuminuria and cardiovascular disease in the HNF1A-MODY group compared with the Type 1 diabetes mellitus group. CONCLUSIONS: This study demonstrates that the majority of patients with HNF1A-MODY can be maintained successfully on sulphonylurea therapy with good glycaemic control. We note a significantly lower rate of micro- and macrovascular complications than reported previously. The use of appropriate therapy at early stages of the disorder may decrease the incidence of complications.


Assuntos
Complicações do Diabetes/epidemiologia , Diabetes Mellitus Tipo 1/tratamento farmacológico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Fator 1-alfa Nuclear de Hepatócito/genética , Hipoglicemiantes/uso terapêutico , Insulina/uso terapêutico , Compostos de Sulfonilureia/uso terapêutico , Adulto , Albuminúria/epidemiologia , Albuminúria/etiologia , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etiologia , Estudos de Casos e Controles , Doença das Coronárias/epidemiologia , Doença das Coronárias/etiologia , Complicações do Diabetes/etiologia , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/genética , Diabetes Mellitus Tipo 2/metabolismo , Nefropatias Diabéticas/epidemiologia , Nefropatias Diabéticas/etiologia , Retinopatia Diabética/epidemiologia , Retinopatia Diabética/etiologia , Progressão da Doença , Feminino , Hemoglobinas Glicadas/metabolismo , Humanos , Quimioterapia de Manutenção/métodos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Reino Unido , Adulto Jovem
12.
Lett Appl Microbiol ; 62(5): 419-27, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26997253

RESUMO

UNLABELLED: Bacterial pathogens producing CTX-M beta-lactamases are emerging around the world as a source of resistance to oxyimino cephalosporins such as cefotaxime. In this study, we have investigated the prevalence of blaCTX-M genes among clinical isolates of Escherichia coli and Klebsiella pneumoniae. Of the double-disk synergy test-positive E. coli (n = 94) and Kl. pneumoniae (n = 73) strains isolated during the study period, 41 (44·08%) E. coli and 32 (43·24%) Kl. pneumoniae isolates were found to be positive for blaCTX-M genes. Twenty-two integrons (13 for E. coli and 9 for Kl. pneumoniae) were detected whose sizes ranged from 600 bp to 1·5 kb. All these integrons were found to be of Class1 type and were invariably PCR positive for int1 and sul1 genes. Marker transfer experiments demonstrated plasmid-mediated transfer of cefotaxime and ceftazidime resistance markers. In addition, analysis of the enterobacterial repetitive intergenic consensus (ERIC)-PCR typing of the blaCTX-M -carrying isolates showed that they were genetically diverse and heterogeneous suggesting that multiple subtypes of the species were involved in infection. SIGNIFICANCE AND IMPACT OF THE STUDY: A high frequency of blaCTX-M -resistant marker has been found in Escherichia coli and Klebsiella pneumoniae isolates of clinical origin. Analysis of the ERIC-PCR typing of the blaCTX-M -carrying isolates showed that they were genetically diverse and heterogeneous suggesting that multiple subtypes of the species were involved in infection.


Assuntos
Infecções por Escherichia coli/microbiologia , Proteínas de Escherichia coli/genética , Escherichia coli/genética , Integrons/genética , Infecções por Klebsiella/microbiologia , Klebsiella pneumoniae/genética , beta-Lactamases/genética , Cefotaxima/farmacologia , Farmacorresistência Bacteriana Múltipla/genética , Escherichia coli/efeitos dos fármacos , Escherichia coli/isolamento & purificação , Humanos , Klebsiella pneumoniae/efeitos dos fármacos , Klebsiella pneumoniae/isolamento & purificação , Dados de Sequência Molecular , Tipagem Molecular , Prevalência
13.
Clin Exp Dermatol ; 40(1): 78-84, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25251037

RESUMO

BACKGROUND: Autosomal recessive hypotrichosis is a rare human hereditary disorder presenting as sparse scalp hair or as woolly hair occurring on various parts of the body. Various forms of isolated hypotrichosis have been reported to date. Mutations in at least 11 genes have been reported to cause hypotrichosis. AIMS: To investigate the clinical and genetic basis of autosomal recessive hypotrichosis in two unrelated consanguineous families. METHODS: Genotyping by highly polymorphic microsatellite markers established linkage in both families to the DSG4 gene on chromosome 18q21. PCR amplification of exons and intron-exon borders of the DSG4 gene was performed, and the products sequenced to search for disease-causing sequence variants. RESULTS: Clinical investigation revealed typical hypotrichosis in the affected members of one family, while other affected members showed presence of monilethrix-like scalp hair. Sequence analysis of DSG4 revealed a novel deletion mutation (c.85-1_191del) in the affected subjects of both families. CONCLUSIONS: This study further extends the body of evidence that mutations in the DSG4 gene result in both hypotrichosis and monilethrix-like scalp hair.


Assuntos
Alopecia/congênito , Desmogleínas/genética , Deleção de Sequência , Alopecia/genética , Criança , Pré-Escolar , Análise Mutacional de DNA , Feminino , Genótipo , Humanos , Masculino , Linhagem , Fenótipo
14.
J Econ Entomol ; 108(4): 1646-54, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26470305

RESUMO

Epiphyas postvittana (Walker) (light-brown apple moth) is a polyphagous herbivore of economic significance, which also feeds on Vitis vinifera L. The E. postvittana-V. vinifera interacting system also involves the participation of the fungus Botrytis cinerea Persoon ex Fries. We have been exploring the relationship among E. postvittana-V. vinifera-B. cinerea over the past two years. In this article, we report the preference and performance of the larvae of E. postvittana raised solely on a synthetic diet incorporated with the mycelial material of B. cinerea (Diet B). To characterize the effect of fungus on the development of E. postvittana, another synthetic diet was prepared that included the lyophilized leaf material of V. vinifera (Diet C). When raised on Diets B and C, a decrease in the duration of larval development and an increase in the survival and fecundity rate of E. postvittana occurred. Diet B influenced the pupal mass, but a significant increase occurred when the larvae were fed on Diet C. The larval emergence rate was the greatest in E. postvittana raised on Diet B, followed by those on Diet C. The F(2) generation of the larvae reared on Diet B showed similar effects as F(1) on the life-history performance of the larvae. Diet B enhanced the life-history performance of E. postvittana, although the larvae of E. postvittana showed little preference to Diet B. The greater fertility rate of E. postvittana reared on Diet B suggests the importance of sterols as shown in Lobesia botrana (Denis & Schiffermüller) (Lepidoptera: Tortricidae) and in a few Myrmicinae (Hymenoptera: Formicidae), which serve as precursors to different ecdysteroids that regulate many critical processes through embryonic development.


Assuntos
Botrytis/fisiologia , Mariposas/crescimento & desenvolvimento , Mariposas/microbiologia , Vitis/crescimento & desenvolvimento , Ração Animal/análise , Animais , Dieta , Comportamento Alimentar , Larva/crescimento & desenvolvimento , Larva/microbiologia , Micélio/fisiologia , Óvulo/crescimento & desenvolvimento , Óvulo/microbiologia , Extratos Vegetais/química , Pupa/crescimento & desenvolvimento , Pupa/microbiologia
15.
J Anaesthesiol Clin Pharmacol ; 31(4): 531-4, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26702214

RESUMO

BACKGROUND AND AIMS: Transversus abdominis plane (TAP) block is suitable for operations where parietal pain is a major cause of pain. Renal transplant recipients are ideally suited to gain maximum benefit from TAP block as the incision classically involves the lower abdomen. This study was conducted to evaluate the analgesic efficacy of continuous TAP block in transplant recipients. MATERIAL AND METHODS: In a prospective double-blind study, 40 chronic renal failure patients undergoing open renal transplant were randomly divided into two groups. At the end of surgery during closure, a multiorifice epidural catheter was placed in TAP plane. Study group (Group S) received Inj bupivacaine bolus 1 mg/kg (0.25%) followed by infusion 0.25 mg/kg (0.125%) through the catheter, whereas control group (Group C) received normal saline through the catheter. Inj pentazocine (0.3 mg/kg) was given as rescue analgesic at visual analogue score (VAS) > 3 in any group at rest or on movement. The analgesic efficacy was judged by VAS, time of first rescue analgesic, and total analgesic consumption in 24 h. RESULTS: Patients in Group S had significant lower VAS scores, longer time to first rescue analgesic (270 ± 347.96 vs. 42.85 ± 32.27 min) and lower pentazocine consumption (9.75 ± 13.95 vs. 56.42 ± 12.46 mg) in 24 h. There was significant sedation in Group C. CONCLUSION: The TAP catheter technique for postoperative pain control after renal transplant has proved to be effective in relieving the postoperative pain after renal transplant with less pentazocine requirement and less sedation.

17.
ScientificWorldJournal ; 2014: 173939, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24616614

RESUMO

Transfusion transmitted infections are major problem associated with blood transfusion. Accurate estimates of risk of TTIs are essential for monitoring the safety of blood supply and evaluating the efficacy of currently employed screening procedures. The present study was carried out to assess the percentage of voluntary donors and replacement donors and to find out prevalence and changing trends of various TTIs blood donors in recent years. A study was carried out on blood units of voluntary and replacement donors which were collected from January 2008 to December 2012. On screening of 180,371 replacement units, seropositivity of transfusion transmitted disease in replacement donors was 0.15% in HIV, 1.67% in hepatitis B surface antigen, 0.49% in hepatitis C virus, 0.01% in VDRL, and 0.009% in malaria. Of 11,977 voluntary units, seropositivity of transfusion transmitted disease in voluntary donors was 0.08% in HIV, 0.24% in hepatitis B surface antigen, 0.001% in hepatitis C virus, 0.008% in VDRL (sexually transmitted disease), and 0.01% in malaria. From results it has been concluded that prevalence of transfusion transmitted infection (HIV, HBV, HCV, VDRL, and malaria) was more in replacement donors in comparison to voluntary donors. Extensive donor selection and screening procedures will help in improving the blood safety.


Assuntos
Infecções/epidemiologia , Reação Transfusional , Doadores de Sangue , Patógenos Transmitidos pelo Sangue , Humanos , Índia/epidemiologia , Infecções/etiologia , Infecções/microbiologia
18.
Indian J Urol ; 30(2): 228-9, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24744527

RESUMO

Anatomical structures with similar appearance may at times be confused for each other. This situation can be compounded by lack of normal anatomical planes. We did ureterocalicostomy on a 32-year-female with secondary pelvi-ureteral junction obstruction. Post-operatively, it was discovered that she had a long appendix running parallel to ureter in retroperitoneum, which was misidentified as ureter and anastomosed to the lower pole of the kidney. She was re-explored, appendix was removed, ureter was identified and ureterocalicostomy was done. Patient is asymptomatic at 1 year follow-up.

19.
NPJ Digit Med ; 7(1): 59, 2024 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-38499605

RESUMO

Type 1 diabetes (T1D) is a chronic condition characterized by glucose fluctuations. Laboratory studies suggest that cognition is reduced when glucose is very low (hypoglycemia) and very high (hyperglycemia). Until recently, technological limitations prevented researchers from understanding how naturally-occurring glucose fluctuations impact cognitive fluctuations. This study leveraged advances in continuous glucose monitoring (CGM) and cognitive ecological momentary assessment (EMA) to characterize dynamic, within-person associations between glucose and cognition in naturalistic environments. Using CGM and EMA, we obtained intensive longitudinal measurements of glucose and cognition (processing speed, sustained attention) in 200 adults with T1D. First, we used hierarchical Bayesian modeling to estimate dynamic, within-person associations between glucose and cognition. Consistent with laboratory studies, we hypothesized that cognitive performance would be reduced at low and high glucose, reflecting cognitive vulnerability to glucose fluctuations. Second, we used data-driven lasso regression to identify clinical characteristics that predicted individual differences in cognitive vulnerability to glucose fluctuations. Large glucose fluctuations were associated with slower and less accurate processing speed, although slight glucose elevations (relative to person-level means) were associated with faster processing speed. Glucose fluctuations were not related to sustained attention. Seven clinical characteristics predicted individual differences in cognitive vulnerability to glucose fluctuations: age, time in hypoglycemia, lifetime severe hypoglycemic events, microvascular complications, glucose variability, fatigue, and neck circumference. Results establish the impact of glucose on processing speed in naturalistic environments, suggest that minimizing glucose fluctuations is important for optimizing processing speed, and identify several clinical characteristics that may exacerbate cognitive vulnerability to glucose fluctuations.

20.
Am J Transplant ; 13(9): 2441-9, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23865679

RESUMO

The prevalence of pediatric RRT and transplantation are low in developing countries, 6-12 and <1 to 5 per million child population (pmcp), respectively. This is due to low GDP/capita of <$10 000, government expenditure on health of <2.6-9% of GDP and paucity of facilities. The reported incidence of pediatric CKD and ESRD is <1.0-8 and 3.4-35 pmcp, respectively. RRT and transplantation are offered mostly in private centers in cities where HD costs $20-100/session and transplants $10 000-20 000. High costs and long distance to centers results in treatment refusal in up to 35% of the cases. In this backdrop 75-85% of children with ESRD are disfranchised from RRT and transplantation. Our center initiated an integrated dialysis-transplant program funded by a community-government partnership where RRT and transplantation was provided "free of cost" with life long follow-up and medication. Access to free RRT at doorsteps and transplantation lead to societal acceptance of transplantation as the therapy of choice for ESRD. This enabled us to perform 475 pediatric transplants in 25 years with 1- and 5-year graft survival of 96% and 81%, respectively. Our model shows that pediatric transplantation is possible in developing countries when freely available and accessible to all who need it in the public sector.


Assuntos
Transplante de Rim/economia , Terapia de Substituição Renal/economia , Adolescente , Adulto , Criança , Países em Desenvolvimento/economia , Humanos , Imunossupressores/economia , Falência Renal Crônica/economia , Falência Renal Crônica/terapia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA