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1.
J Clin Lipidol ; 2024 Feb 08.
Artículo en Inglés | MEDLINE | ID: mdl-38485619

RESUMEN

OBJECTIVE: In 2016, the Lipid Association of India (LAI) developed a cardiovascular risk assessment algorithm and defined low-density lipoprotein cholesterol (LDL-C) goals for prevention of atherosclerotic cardiovascular disease (ASCVD) in Indians. The recent refinements in the role of various risk factors and subclinical atherosclerosis in prediction of ASCVD risk necessitated updating the risk algorithm and treatment goals. METHODS: The LAI core committee held twenty-one meetings and webinars from June 2022 to July 2023 with experts across India and critically reviewed the latest evidence regarding the strategies for ASCVD risk prediction and the benefits and modalities for intensive lipid lowering. Based on the expert consensus and extensive review of published data, consensus statement IV was commissioned. RESULTS: The young age of onset and a more aggressive nature of ASCVD in Indians necessitates emphasis on lifetime ASCVD risk instead of the conventional 10-year risk. It also demands early institution of aggressive preventive measures to protect the young population prior to development of ASCVD events. Wide availability and low cost of statins in India enable implementation of effective LDL-C lowering therapy in individuals at high risk of ASCVD. Subjects with any evidence of subclinical atherosclerosis are likely to benefit the most from early aggressive interventions. CONCLUSIONS: This document presents the updated risk stratification and treatment algorithm and describes the rationale for each modification. The intent of these updated recommendations is to modernize management of dyslipidemia in Indian patients with the goal of reducing the epidemic of ASCVD among Indians in Asia and worldwide.

2.
Cardiorenal Med ; 12(1): 1-10, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34802000

RESUMEN

BACKGROUND: Heart failure (HF), diabetes mellitus (DM), and chronic kidney disease (CKD) are commonly occurring and interlinked conditions. Approximately 25%-40% of patients with HF have DM, and approximately 40%-50% of patients with HF have CKD. Both DM and CKD are associated with increased risk of incident HF. Furthermore, 40% of people with DM develop CKD, making DM the leading cause of kidney failure globally. Importantly, 16% of patients with HF have both comorbid DM and CKD, and the combination of these 3 comorbidities is associated with substantially increased risk for hospitalization and mortality. Mechanisms that underlie the relationships between HF, DM, and CKD are complex but likely relate to shared cardiovascular and metabolic risk factors, as well as downstream effects on inflammation, oxidative stress, and neurohormonal pathways. SUMMARY: This review outlines the epidemiology and links between HF, DM, and CKD, as well as current clinical evidence for the treatment of individuals with a combination of these comorbidities. A case study of a patient with concomitant HF, DM, and CKD is discussed to explore potential treatment approaches for patients in whom all 3 comorbidities exist. KEY MESSAGES: Treatment plans for patients with a combination of these 3 comorbidities should consider the available clinical evidence.


Asunto(s)
Diabetes Mellitus , Insuficiencia Cardíaca , Insuficiencia Renal Crónica , Diabetes Mellitus/epidemiología , Femenino , Insuficiencia Cardíaca/complicaciones , Insuficiencia Cardíaca/epidemiología , Insuficiencia Cardíaca/terapia , Hospitalización , Humanos , Masculino , Insuficiencia Renal Crónica/complicaciones , Insuficiencia Renal Crónica/tratamiento farmacológico , Insuficiencia Renal Crónica/epidemiología , Factores de Riesgo
4.
Am J Med ; 134(1): 16-22, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32771461

RESUMEN

Approximately 9 months of the severe acute respiratory syndrome coronavius-2 (SARS-CoV-2 [COVID-19]) spreading across the globe has led to widespread COVID-19 acute hospitalizations and death. The rapidity and highly communicable nature of the SARS-CoV-2 outbreak has hampered the design and execution of definitive randomized, controlled trials of therapy outside of the clinic or hospital. In the absence of clinical trial results, physicians must use what has been learned about the pathophysiology of SARS-CoV-2 infection in determining early outpatient treatment of the illness with the aim of preventing hospitalization or death. This article outlines key pathophysiological principles that relate to the patient with early infection treated at home. Therapeutic approaches based on these principles include 1) reduction of reinoculation, 2) combination antiviral therapy, 3) immunomodulation, 4) antiplatelet/antithrombotic therapy, and 5) administration of oxygen, monitoring, and telemedicine. Future randomized trials testing the principles and agents discussed will undoubtedly refine and clarify their individual roles; however, we emphasize the immediate need for management guidance in the setting of widespread hospital resource consumption, morbidity, and mortality.


Asunto(s)
Atención Ambulatoria , COVID-19/terapia , SARS-CoV-2 , Anticoagulantes/uso terapéutico , COVID-19/fisiopatología , Humanos , Factores Inmunológicos/administración & dosificación , Factores Inmunológicos/uso terapéutico , Oxígeno/uso terapéutico
5.
Rev Cardiovasc Med ; 21(1): 1-7, 2020 03 30.
Artículo en Inglés | MEDLINE | ID: mdl-32259899

RESUMEN

Approximately 90 days of the SARS-CoV-2 (COVID-19) spreading originally from Wuhan, China, and across the globe has led to a widespread chain of events with imminent threats to the fragile relationship between community health and economic health. Despite near hourly reporting on this crisis, there has been no regular, updated, or accurate reporting of hospitalizations for COVID-19. It is known that many test-positive individuals may not develop symptoms or have a mild self-limited viral syndrome consisting of fever, malaise, dry cough, and constitutional symptoms. However some individuals develop a more fulminant syndrome including viral pneumonia, respiratory failure requiring oxygen, acute respiratory distress syndrome requiring mechanical ventilation, and in substantial fractions leading to death attributable to COVID-19. The pandemic is evolving in a clustered, non-inform fashion resulting in many hospitals with preparedness but few or no cases, and others that are completely overwhelmed. Thus, a considerable risk of spread when personal protection equipment becomes exhausted and a large fraction of mortality in those not offered mechanical ventilation are both attributable to a crisis due to maldistribution of resources. The pandemic is amenable to self-reporting through a mobile phone application that could obtain critical information on suspected cases and report on the results of self testing and actions taken. The only method to understand the clustering and the immediate hospital resource needs is mandatory, uniform, daily reporting of hospital censuses of COVID-19 cases admitted to hospital wards and intensive care units. Current reports of hospitalizations are delayed, uncertain, and wholly inadequate. This paper urges all the relevant stakeholders to take up self-reporting and reporting of hospitalizations of COVID-19 as an urgent task in combating this devastating pandemic.


Asunto(s)
Infecciones por Coronavirus/epidemiología , Recursos en Salud/provisión & distribución , Recursos en Salud/estadística & datos numéricos , Notificación Obligatoria , Aplicaciones Móviles/estadística & datos numéricos , Pandemias/estadística & datos numéricos , Neumonía Viral/epidemiología , Atención Ambulatoria/estadística & datos numéricos , COVID-19 , Infecciones por Coronavirus/complicaciones , Infecciones por Coronavirus/terapia , Cuidados Críticos/estadística & datos numéricos , Hospitalización/estadística & datos numéricos , Hospitales/estadística & datos numéricos , Humanos , Unidades de Cuidados Intensivos/estadística & datos numéricos , Neumonía Viral/complicaciones , Neumonía Viral/terapia , Características de la Residencia/estadística & datos numéricos , Autoinforme/estadística & datos numéricos
6.
Nat Commun ; 5: 5670, 2014 Nov 28.
Artículo en Inglés | MEDLINE | ID: mdl-25430612

RESUMEN

Layer-structured two-dimensional nanomaterials are a family of materials with strong covalent bonding within layers and weak van der Waals interaction between layers, whose vertical thickness can be thinned down to few nanometer and even single atomic layer. Bismuth chalcogenides are examples of such two-dimensional materials. Here, we present our discovery of significant enhancement of light transmission through thin nanoplates of layered bismuth chalcogenides by intercalation of copper atoms, which is on the contrary to most bulk materials in which doping reduces the light transmission. This surprising behaviour results from two mechanisms: chemical tuning effect of substantial reduction of material absorption after intercalation and nanophotonic effect of zero-wave anti-reflection unique to ultra-small thickness of nanoplates. We demonstrate that the synergy of these two effects in two-dimensional nanostructures can be exploited for various optoelectronic applications including transparent electrode. The intercalation mechanism allows potential dynamic tuning capability.

7.
Nat Commun ; 5: 3943, 2014 May 27.
Artículo en Inglés | MEDLINE | ID: mdl-24862162

RESUMEN

Lithium-sulphur batteries are attractive owing to their high theoretical energy density and reasonable kinetics. Despite the success of trapping soluble polysulphides in a matrix with high surface area, spatial control of solid-state sulphur and lithium sulphide species deposition as a critical aspect has not been demonstrated. Herein, we show a clear visual evidence that these solid species deposit preferentially onto tin-doped indium oxide instead of carbon during electrochemical charge/discharge of soluble polysuphides. To incorporate this concept of spatial control into more practical battery electrodes, we further prepare carbon nanofibers with tin-doped indium oxide nanoparticles decorating the surface as hybrid three-dimensional electrodes to maximize the number of deposition sites. With 12.5 µl of 5 M Li2S8 as the catholyte and a rate of C/5, we can reach the theoretical limit of Li2S8 capacity ~\n1,470 mAh g(-1) (sulphur weight) under the loading of hybrid electrode only at 4.3 mg cm(-2).

8.
Nat Commun ; 3: 664, 2012 Feb 07.
Artículo en Inglés | MEDLINE | ID: mdl-22314360

RESUMEN

Light trapping across a wide band of frequencies is important for applications such as solar cells and photodetectors. Here, we demonstrate a new approach to light management by forming whispering-gallery resonant modes inside a spherical nanoshell structure. The geometry of the structure gives rise to a low quality-factor, facilitating the coupling of light into the resonant modes and substantial enhancement of the light path in the active material, thus dramatically improving absorption. Using nanocrystalline silicon (nc-Si) as a model system, we observe broadband absorption enhancement across a large range of incident angles. The absorption of a single layer of 50-nm-thick spherical nanoshells is equivalent to a 1-µm-thick planar nc-Si film. This light-trapping structure could enable the manufacturing of high-throughput ultra-thin film absorbers in a variety of material systems that demand shorter deposition time, less material usage and transferability to flexible substrates.


Asunto(s)
Nanotecnología/métodos , Silicio/química , Conductividad Eléctrica , Suministros de Energía Eléctrica , Diseño de Equipo , Luz , Ensayo de Materiales , Microscopía Electrónica de Rastreo/métodos , Nanocáscaras , Óptica y Fotónica , Dióxido de Silicio/química , Energía Solar , Luz Solar , Temperatura
9.
J Diabetes Complications ; 24(3): 145-53, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-19303333

RESUMEN

BACKGROUND: Although studies of immigrant Asian Indians in other countries show high rates of diabetes (DM), metabolic syndrome (MetS), and cardiovascular disease (CVD), no randomized, population-based studies of this rapidly growing ethnic group exist in the US. METHODS: The sample comprised 1038 randomly selected Asian Indian immigrants, aged 18 years and older at seven US sites. Prevalence of diabetes and MetS (age-adjusted and sex-adjusted means) was estimated and ANOVA was used to calculate gender and group differences (normoglycemia/impaired fasting glucose/diabetes) for CVD risk factors. RESULTS: The mean age was 48.2 years. The majority of respondents were male, married, educated, and with some form of health insurance. Prevalence of diabetes was 17.4%, and 33% of the respondents had prediabetes. Cardiovascular risk factors, especially high levels of triglycerides, total cholesterol, LDL cholesterol, homocysteine, and C-reactive protein, and low levels of HDL cholesterol, were also prevalent; elevated lipoprotein(a) was not observed. The age-adjusted prevalence of MetS was 26.9% by the original NCEP/ATP III criteria, 32.7% by the modified NCEP/ATP III criteria, and 38.2% by the IDF criteria. The MetS rates for women, but not for men, increased with age using all three criteria. There was a progressive worsening of all metabolic parameters as individuals progressed from normal to IFG to diabetes. CONCLUSION: The prevalence rates of diabetes and MetS among US Asian Indians are higher than reported in earlier, nonrandomized, smaller surveys. These data provide a firm basis for future mechanistic and interventional studies.


Asunto(s)
Enfermedades Cardiovasculares/epidemiología , Diabetes Mellitus/epidemiología , Síndrome Metabólico/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Asiático , Glucemia/análisis , Proteína C-Reactiva/análisis , Colesterol/sangre , HDL-Colesterol/sangre , LDL-Colesterol/sangre , Femenino , Homocisteína/sangre , Humanos , Masculino , Persona de Mediana Edad , Estado Prediabético/epidemiología , Prevalencia , Factores de Riesgo , Factores Sexuales , Triglicéridos/sangre , Estados Unidos/epidemiología , Circunferencia de la Cintura , Adulto Joven
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