RESUMO
Obesity in children is a major public health concern due to the increased risk of developing adverse health outcomes in their future, and disability in adulthood. The existing systematic reviews on the topic are limited in scope, focusing solely on high-income countries and children aged 4-12 years. Hence, we propose to conduct a systematic review and meta-analysis to understand, how exposure to authoritative feeding style versus authoritarian, indulgent, uninvolved compare in terms of its association with adiposity in children aged 6 months to 5 years. Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P) guidelines were followed for ensuring the completeness of the protocol. Case-control and cohort studies will be included. Searches will be done using electronic databases viz. PubMed, Ovid EMBASE, PsycINFO and Web of Science. Grey literature will be searched using OpenGrey and Grey Literature Report. We will only include quantitative studies using the developed search strategy. For categorical outcomes, relative risks, odds ratios, and hazard ratios with confidence intervals and for continuous outcomes mean difference with confidence intervals will be used. Risk of Bias In Non-randomized Studies- of Exposure (ROBINS-E) will be used for the evaluation of risk of bias in the individual observational studies. Considering the inherent variability in the observational studies, random effects meta-analysis will also be conducted. If between-study heterogeneity exists, a subgroup analysis based on low and middle-income countries vs. high income countries will be conducted. If the data is not suitable for combining quantitatively, a narrative synthesis will be undertaken. We propose to identify publication bias by using contour-enhanced funnel plots and "trim and fill" method. Outcome reporting bias will be ascertained by comparing the outcomes published in the protocol and the published report. The Grades of Recommendation, Assessment, Development, and Evaluation (GRADE) system will be used to understand the confidence we can have on the effect estimates. Registration: This protocol has been registered in International Prospective Register of Systematic Reviews (PROSPERO) on 13 March 2023 with registration number CRD42023356014.
Assuntos
Doenças Profissionais , Exposição Ocupacional , Obesidade Infantil , Criança , Humanos , Adiposidade , Organização Mundial da Saúde , Efeitos Psicossociais da Doença , Revisões Sistemáticas como Assunto , Metanálise como AssuntoRESUMO
Large-scale fish mortality was observed in flood-affected fish farms across several parts of Kerala following heavy rainfall in August 2018 and 2019-nearly 53% above the normal monsoon rain that the region receives. The affected fish had severe haemorrhages and ulcers, typical of the highly infectious disease epizootic ulcerative syndrome (EUS) caused by the water mould Aphanomyces invadans. In freshwater, snakeheads Channa spp. and in brackish water mullet (Mugilidae) and pearl spot (Etroplus suratensis) were severely affected. EUS was observed in 4 freshwater fishes for the first time: dotted sawfin barb Pethia punctata (Cyprinidae), Malabar leaffish Pristolepis malabarica (Pristolepididae), mahecola barb Puntius mahecola (Cyprinidae) and giant snakehead Channa pseudomarulius (Channidae). Histology and molecular diagnosis confirmed the cause of mortality to be EUS. Fungal hyphae were also observed in deeply ulcerated fish, revealed by lactophenol cotton blue staining. The severity of the EUS outbreak was linked to the sudden change in water quality associated with the flood, such as lower water temperature, and decreases in pH, total alkalinity and total hardness.
Assuntos
Doenças dos Peixes , Inundações , Animais , Surtos de Doenças/veterinária , Doenças dos Peixes/epidemiologia , Índia/epidemiologia , Úlcera/epidemiologia , Úlcera/veterináriaRESUMO
Models of infection have shaped our understanding of programmed memory T cell differentiation, yet whether these models apply to memory programming in the context of transplantation has yet to be defined. Previous work has identified differences in the response of antigen-specific CD8+ T cells to cognate antigen based on the environment in which the antigen is presented. Thus, we hypothesized that programming of antigen specific CD8+ T cells responding to graft and pathogen may be dissimilar. Here we find that antigen-specific CD8+ T cells primed by a skin graft contract faster than those primed by gammaherpesvirus (gHV), yet are able to expand more rapidly upon rechallenge. Moreover, graft-primed antigen-specific CD8+ T cells exhibited higher frequencies of cells secreting IL-2 and demonstrate lower expression of KLRG-1, which are qualities suggestive of increased recall potential. Additionally, the expression of CD127 at a memory time point suggests graft-elicited CD8+ antigen specific T cells are maintained in a less terminally-differentiated state compared to gHV-elicited CD8+ antigen specific T cells, despite fewer cells being present at that time point. Taken together, our findings suggest that the surface marker expression and functional profiles of T cells depends on the priming conditions and may be used to predict immunologic risk following transplantation after traditional allosensitization or heterologous immune priming.
Assuntos
Linfócitos T CD8-Positivos/imunologia , Gammaherpesvirinae/imunologia , Rejeição de Enxerto/imunologia , Infecções por Herpesviridae/imunologia , Transplante de Pele , Animais , Antígenos Virais/imunologia , Diferenciação Celular , Proliferação de Células , Células Cultivadas , Memória Imunológica , Subunidade alfa de Receptor de Interleucina-7/metabolismo , Isoantígenos/imunologia , Lectinas Tipo C , Ativação Linfocitária , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Transgênicos , Receptores Imunológicos/metabolismoRESUMO
AIMS: To assess the relationship between regularity of follow-up and risk of complications in patients with type 2 diabetes (T2DM) followed up for 9 years at a tertiary diabetes center in India. METHODS: We compared glycemic burden [cumulative time spent above a HbA1c of 53 mmol/mol (7 %)] and incidence of diabetes complications (retinopathy, neuropathy, nephropathy, peripheral arterial disease, coronary heart disease) between 1,783 T2DM patients with "regular follow-up" (minimum of three visits and two HbA1c tests every year from 2003 to 2012), and 1,798 patients with "irregular follow-up" (two visits or less and one HbA1c or less per year during the same time period), retrospectively identified from medical records. Cox proportional hazards models were used to estimate risk associated with diabetes complications. RESULTS: Compared to those with regular follow-up, the irregular follow-up group had significantly higher mean fasting and postprandial plasma glucose, HbA1c, glycemic burden, total and LDL cholesterol, and triglycerides at every time point during the 9 years of follow-up. Those with irregular follow-up had double the total and mean monthly glycemic burden and 1.98 times higher risk of retinopathy (95 % CI 1.62, 2.42) and 2.11 times higher risk of nephropathy (95 % CI 1.73, 2.58) compared to those with regular follow-up, even after adjusting for time-varying confounding variables. Complications tended to develop significantly earlier and were more severe in those with irregular follow-up. CONCLUSION: Among patients with type 2 diabetes, regular follow-up was associated with significantly lower glycemic burden and lower incidence of retinopathy and nephropathy over a 9-year period.
Assuntos
Glicemia/análise , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/complicações , Cardiomiopatias Diabéticas/etiologia , Nefropatias Diabéticas/etiologia , Retinopatia Diabética/etiologia , Idoso , Glicemia/metabolismo , Feminino , Seguimentos , Hemoglobinas Glicadas/metabolismo , Humanos , Índia/epidemiologia , Masculino , Estudos RetrospectivosRESUMO
BACKGROUND: Recent evidence suggests that alloreactive memory T cells are generated by the process of heterologous immunity, whereby memory T cells arising in response to pathogen infection crossreact with donor antigens. Because of their diminished requirements for costimulation during recall, these pathogen-elicited allocrossreactive memory T cells are of particular clinical importance, especially given the emergence of costimulatory blockade as a transplant immunosuppression strategy. METHODS: We used an established model of heterologous immunity involving sequential infection of a naïve C57BL/6 recipient with lymphocytic choriomeningitis virus and vaccinia virus, followed by combined skin and bone marrow transplant from a BALB/c donor. RESULTS: We demonstrate that coupling the integrin antagonist anti-leukocyte functional antigen (LFA)-1 with costimulatory blockade could surmount the barrier posed by heterologous immunity in a fully allogeneic murine transplant system. The combined costimulatory and integrin blockade regimen suppressed proliferation of alloreactive memory T cells and attenuated their cytokine effector responses. This combined blockade regimen also promoted the retention of FoxP³âº Tregs in draining lymph nodes. Finally, we show that in an in vitro mixed lymphocyte reaction system using human T cells, the combination of belatacept and anti-LFA-1 was able to suppress cytokine production by alloreactive memory T cells that was resistant to belatacept alone. CONCLUSIONS: As an antagonist against human LFA-1 exists and has been used clinically to treat psoriasis, these findings have significant translational potential for future clinical transplant trials.
Assuntos
Antígenos B7/antagonistas & inibidores , Antígenos CD40/antagonistas & inibidores , Ligante de CD40/antagonistas & inibidores , Rejeição de Enxerto/prevenção & controle , Memória Imunológica , Antígeno-1 Associado à Função Linfocitária/fisiologia , Animais , Transplante de Medula Óssea/imunologia , Sobrevivência de Enxerto , Humanos , Linfonodos/imunologia , Ativação Linfocitária , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Endogâmicos C57BL , Transplante de Pele/imunologia , Transplante HomólogoRESUMO
The standardisation and optimisation of a one step single tube reverse transcriptase loop-mediated isothermal amplification (RT-LAMP) procedure is described for rapid diagnosis of white tail disease, a viral disease caused by Macrobrachium rosenbergii noda virus (MrNV) and extra small virus (XSV), in giant fresh water prawn, M. rosenbergii. Time, temperature and quantity of each reagent were optimised for the detection of the two viruses. This method was more sensitive than the conventional reverse transcriptase polymerase chain reaction (RT-PCR) for detecting the two viruses. The RT-LAMP reaction is highly suited for disease diagnosis in developing countries. Amplification of DNA can be detected without the use of agarose gel electrophoresis, by the production of a whitish precipitate of magnesium pyrophosphate as a by-product. The cost of RT-LAMP for one reaction is nearly 4 times less than that of RT-PCR.