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1.
Front Immunol ; 13: 812940, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35250987

RESUMO

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the current coronavirus disease 2019 (COVID-19) pandemic, affecting more than 219 countries and causing the death of more than 5 million people worldwide. The genetic background represents a factor that predisposes the way the host responds to SARS-CoV-2 infection. In this sense, genetic variants of ACE and ACE2 could explain the observed interindividual variability to COVID-19 outcomes. In order to improve the understanding of how genetic variants of ACE and ACE2 are involved in the severity of COVID-19, we included a total of 481 individuals who showed clinical manifestations of COVID-19 and were diagnosed by reverse transcription PCR (RT-PCR). Genomic DNA was extracted from peripheral blood and saliva samples. ACE insertion/deletion polymorphism was evaluated by the high-resolution melting method; ACE single-nucleotide polymorphism (SNP) (rs4344) and ACE2 SNPs (rs2285666 and rs2074192) were genotyped using TaqMan probes. We assessed the association of ACE and ACE2 polymorphisms with disease severity using logistic regression analysis adjusted by age, sex, hypertension, type 2 diabetes, and obesity. The severity of the illness in our study population was divided as 31% mild, 26% severe, and 43% critical illness; additionally, 18% of individuals died, of whom 54% were male. Our results showed in the codominant model a contribution of ACE2 gene rs2285666 T/T genotype to critical outcome [odds ratio (OR) = 1.83; 95%CI = 1.01-3.29; p = 0.04] and to require oxygen supplementation (OR = 1.76; 95%CI = 1.01-3.04; p = 0.04), in addition to a strong association of the T allele of this variant to develop critical illness in male individuals (OR = 1.81; 95%CI = 1.10-2.98; p = 0.02). We suggest that the T allele of rs2285666 represents a risk factor for severe and critical outcomes of COVID-19, especially for men, regardless of age, hypertension, obesity, and type 2 diabetes.


Assuntos
Enzima de Conversão de Angiotensina 2/genética , COVID-19/genética , Peptidil Dipeptidase A/genética , Polimorfismo de Nucleotídeo Único/genética , Alelos , COVID-19/virologia , Diabetes Mellitus Tipo 2/genética , Diabetes Mellitus Tipo 2/virologia , Genótipo , Humanos , Masculino , SARS-CoV-2/patogenicidade
2.
Bull Exp Biol Med ; 172(3): 283-287, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34997875

RESUMO

We studied laboratory parameters of patients with COVID-19 against the background of chronic pathologies (cardiovascular pathologies, obesity, type 2 diabetes melitus, and cardiovascular pathologies with allergy to statins). A decrease in pH and a shift in the electrolyte balance of blood plasma were revealed in all studied groups and were most pronounced in patients with cardiovascular pathologies with allergy to statin. It was found that low pH promotes destruction of lipid components of the erythrocyte membranes in patients with chronic pathologies, which was seen from a decrease in Na+/K+-ATPase activity and significant hyponatrenemia. In patients with cardiovascular pathologies and allergy to statins, erythrocyte membranes were most sensitive to a decrease in pH, while erythrocyte membranes of obese patients showed the greatest resistance to low pH and oxidative stress.


Assuntos
COVID-19/complicações , Hiponatremia/etiologia , Hipóxia/complicações , ATPase Trocadora de Sódio-Potássio/fisiologia , Idoso , COVID-19/metabolismo , Doenças Cardiovasculares/complicações , Doenças Cardiovasculares/metabolismo , Doenças Cardiovasculares/virologia , Estudos de Casos e Controles , Doença Crônica , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/virologia , Hipersensibilidade a Drogas/complicações , Hipersensibilidade a Drogas/metabolismo , Hipersensibilidade a Drogas/virologia , Membrana Eritrocítica/metabolismo , Eritrócitos/metabolismo , Feminino , Deslocamentos de Líquidos Corporais/fisiologia , Humanos , Concentração de Íons de Hidrogênio , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Hiponatremia/metabolismo , Hiponatremia/virologia , Hipóxia/metabolismo , Peroxidação de Lipídeos/fisiologia , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Obesidade/metabolismo , Obesidade/virologia , Estresse Oxidativo/fisiologia , SARS-CoV-2/fisiologia , Sódio/metabolismo , Estresse Fisiológico/fisiologia
3.
Hum Mol Genet ; 31(3): 471-480, 2022 02 03.
Artigo em Inglês | MEDLINE | ID: mdl-34553760

RESUMO

Symptoms related with gastro-esophageal reflux disease (GERD) were previously shown to be linked with increased risk for the 2019 coronavirus disease (COVID-19). We aim to interrogate the possibility of a shared genetic basis between GERD and COVID-19 outcomes. Using published GWAS data for GERD (78 707 cases; 288 734 controls) and COVID-19 susceptibility (up to 32 494 cases; 1.5 million controls), we examined the genetic relationship between GERD and three COVID-19 outcomes: risk of developing severe COVID-19, COVID-19 hospitalization and overall COVID-19 risk. We estimated the genetic correlation between GERD and COVID-19 outcomes followed by Mendelian randomization (MR) analyses to assess genetic causality. Conditional analyses were conducted to examine whether known COVID-19 risk factors (obesity, smoking, type-II diabetes, coronary artery disease) can explain the relationship between GERD and COVID-19. We found small to moderate genetic correlations between GERD and COVID-19 outcomes (rg between 0.06 and 0.24). MR analyses revealed a OR of 1.15 (95% CI: 0.96-1.39) for severe COVID-19; 1.16 (1.01-1.34) for risk of COVID-19 hospitalization; 1.05 (0.97-1.13) for overall risk of COVID-19 per doubling of odds in developing GERD. The genetic correlation/associations between GERD and COVID-19 showed mild attenuation towards the null when obesity and smoking was adjusted for. Susceptibility for GERD and risk of COVID-19 hospitalization were genetically correlated, with MR findings supporting a potential causal role between the two. The genetic association between GERD and COVID-19 was partially attenuated when obesity is accounted for, consistent with obesity being a major risk factor for both diseases.


Assuntos
COVID-19/genética , Diabetes Mellitus Tipo 2/genética , Refluxo Gastroesofágico/genética , Predisposição Genética para Doença , Índice de Massa Corporal , COVID-19/complicações , COVID-19/virologia , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/genética , Doença da Artéria Coronariana/virologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/virologia , Feminino , Refluxo Gastroesofágico/complicações , Refluxo Gastroesofágico/virologia , Estudo de Associação Genômica Ampla , Hospitalização , Humanos , Masculino , Análise da Randomização Mendeliana , Obesidade/complicações , Obesidade/genética , Obesidade/virologia , Polimorfismo de Nucleotídeo Único , Fatores de Risco , SARS-CoV-2/genética , SARS-CoV-2/patogenicidade , Índice de Gravidade de Doença , Fumar/efeitos adversos
4.
Diabetes Metab Syndr ; 15(6): 102302, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34626924

RESUMO

BACKGROUND: Post COVID-19 syndrome (PCS) has emerged as a major roadblock in the recovery of patients infected with SARS-CoV-2. Amongst many symptoms like myalgia, headache, cough, breathlessness; fatigue is is most prevalent and makes the patient severely debilitated. Research on PCS, in particular fatigue, in patients with diabetes has not been done. METHODOLOGY: In this prospective study, we included patients with type 2 diabetes (T2D) who had COVID-19 (mild to moderate severity), and matched T2D patients who did not suffer from COVID-19. Demography, anthropometry, glycemic measures, treatment, and details of COVID-19 were recorded. Symptoms were scored using Chalder Fatigue Scale (reported as fatigue score, FS) and handgrip strength (in kg) was recorded by Jamar Hydraulic Hand Dynamometer. RESULTS: A total of 108 patients were included (cases, 52, controls, 56). Both groups were matched for age, duration of diabetes, BMI, TSH, serum albumin and vitamin D levels. T2D patients who had COVID-19 showed significantly more fatigue when compared with patients who did not have COVID-19 but both groups had comparable handgrip strength. Furthermore, patients with T2D with previous COVID-19 infection and who had FS > 4 have had significant higher inflammation markers during acute illness, and post COVID-19, had increased post prandial blood glucose levels, lost more weight, had reduced physical activity and showed significantly lower handgrip strength as compared to those with FS < 4. CONCLUSION: Patients with T2D who had COVID-19 infection as compared to those without had significantly more fatigue after the acute illness, and those with higher FS had reduced handgrip strength indicating sarcopenia, even after careful matching for common contributory factors to fatigue at baseline. Rehabilitation of those with FS>4 after acute infection would require careful attention to nutrition, glycemic control and graduated physical activity protocol.


Assuntos
COVID-19/complicações , Diabetes Mellitus Tipo 2/fisiopatologia , Fadiga/epidemiologia , SARS-CoV-2/isolamento & purificação , COVID-19/epidemiologia , COVID-19/virologia , Estudos de Casos e Controles , Diabetes Mellitus Tipo 2/virologia , Fadiga/virologia , Feminino , Humanos , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Prognóstico , Estudos Prospectivos , Síndrome Pós-COVID-19 Aguda
5.
J Biol Chem ; 297(5): 101298, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34637789

RESUMO

Influenza A virus (IAV) infection casts a significant burden on society. It has particularly high morbidity and mortality rates in patients suffering from metabolic disorders. The aim of this study was to relate metabolic changes with IAV susceptibility using well-characterized inbred mouse models. We compared the highly susceptible DBA/2J (D2) mouse strain for which IAV infection is lethal with the C57BL/6J (B6) strain, which exhibits a moderate course of disease and survives IAV infection. Previous studies showed that D2 has higher insulin and glucose levels and is predisposed to develop diet-induced type 2 diabetes. Using high-resolution liquid chromatography-coupled MS, the plasma metabolomes of individual animals were repeatedly measured up to 30 days postinfection. The biggest metabolic difference between these strains in healthy and infected states was in the levels of malonylcarnitine, which was consistently increased 5-fold in D2. Other interstrain and intrastrain differences in healthy and infected animals were observed for acylcarnitines, glucose, branched-chain amino acids, and oxidized fatty acids. By mapping metabolic changes to canonical pathways, we found that mitochondrial beta-oxidation is likely disturbed in D2 animals. In noninfected D2 mice, this leads to increased glycerolipid production and reduced acylcarnitine production, whereas in infected D2 animals, peroxisomal beta-oxidation becomes strongly increased. From these studies, we conclude that metabolic changes caused by a distortion of mitochondrial and peroxisomal metabolism might impact the innate immune response in D2, leading to high viral titers and mortality.


Assuntos
Diabetes Mellitus Experimental/metabolismo , Diabetes Mellitus Tipo 2/metabolismo , Vírus da Influenza A/metabolismo , Infecções por Orthomyxoviridae/metabolismo , Aminoácidos de Cadeia Ramificada/metabolismo , Animais , Carnitina/análogos & derivados , Carnitina/metabolismo , Diabetes Mellitus Experimental/patologia , Diabetes Mellitus Experimental/virologia , Diabetes Mellitus Tipo 2/patologia , Diabetes Mellitus Tipo 2/virologia , Camundongos , Oxirredução
6.
Int J Mol Sci ; 22(14)2021 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-34299225

RESUMO

COVID-19 infection poses an important clinical therapeutic problem, especially in patients with coexistent diseases such as type 2 diabetes. Potential pathogenetic links between COVID-19 and diabetes include inflammation, effects on glucose homeostasis, haemoglobin deoxygenation, altered immune status and activation of the renin-angiotensin-aldosterone system (RAAS). Moreover, drugs often used in the clinical care of diabetes (dipeptidyl peptidase 4 inhibitors, glucagon-like peptide 1 receptor agonists, sodium-glucose cotransporter 2 inhibitors, metformin and insulin) may influence the course of SARS-CoV-2 infection, so it is very important to verify their effectiveness and safety. This review summarises the new advances in diabetes therapy and COVID-19 and provides clinical recommendations that are essential for medical doctors and for patients suffering from type 2 diabetes.


Assuntos
COVID-19/terapia , Diabetes Mellitus Tipo 2/terapia , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , COVID-19/complicações , COVID-19/epidemiologia , COVID-19/fisiopatologia , Diabetes Mellitus Tipo 2/fisiopatologia , Diabetes Mellitus Tipo 2/virologia , Inibidores da Dipeptidil Peptidase IV/uso terapêutico , Receptor do Peptídeo Semelhante ao Glucagon 1/agonistas , Humanos , Hipoglicemiantes/uso terapêutico , Insulina/uso terapêutico , Metformina/uso terapêutico , SARS-CoV-2/isolamento & purificação , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico
7.
FEBS J ; 288(17): 5042-5054, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34216102

RESUMO

The COVID-19 pandemic has highlighted the vulnerability of people with diabetes mellitus (DM) to respiratory viral infections. Despite the short history of COVID-19, various studies have shown that patients with DM are more likely to have increased hospitalisation and mortality rates as compared to patients without. At present, the mechanisms underlying this susceptibility are unclear. However, prior studies show that the course of COVID-19 disease is linked to the efficacy of the host's T-cell responses. Healthy individuals who can elicit a robust T-cell response are more likely to limit the severity of COVID-19. Here, we investigate the hypothesis that an impaired T-cell response in patients with type 2 diabetes mellitus (T2DM) drives the severity of COVID-19 in this patient population. While there is currently a limited amount of information that specifically addresses T-cell responses in COVID-19 patients with T2DM, there is a wealth of evidence from other infectious diseases that T-cell immunity is impaired in patients with T2DM. The reasons for this are likely multifactorial, including the presence of hyperglycaemia, glycaemic variability and metformin use. This review emphasises the need for further research into T-cell responses of COVID-19 patients with T2DM in order to better inform our response to COVID-19 and future disease outbreaks.


Assuntos
COVID-19/imunologia , Diabetes Mellitus Tipo 2/imunologia , Hiperglicemia/imunologia , Linfócitos T/imunologia , COVID-19/complicações , COVID-19/patologia , COVID-19/virologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/patologia , Diabetes Mellitus Tipo 2/virologia , Humanos , Hiperglicemia/complicações , Hiperglicemia/patologia , Hiperglicemia/virologia , Pandemias , SARS-CoV-2/patogenicidade , Linfócitos T/virologia
8.
Int J Mol Sci ; 22(10)2021 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-34067683

RESUMO

The global coronavirus disease 2019 (COVID-19) pandemic was associated with multiple organ failure and comorbidities, such as type 2 diabetes mellitus (T2DM). Risk factors, such as age, gender, and obesity, were associated with COVID-19 infection. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is known to use several host receptors for viral entry, such as angiotensin-converting enzyme 2 (ACE2) and transmembrane protease serine 2 (TMPRSS2) in the lung and other organs. However, ACE2 could be shed from the surface to be soluble ACE2 (sACE2) in the circulation. The epigenetic factors affecting ACE2 expression include a type of small non-coding RNAs called microRNAs (miRNAs). In this study, we aimed at exploring the status of the sACE2 as well as serum levels of several upstream novel miRNAs as non-invasive biomarkers that might have a potential role in T2DM patients. Serum samples were collected from 50 T2DM patients and 50 healthy controls, and sACE2 levels were quantified using enzyme-linked immunosorbent assay (ELISA). Also, RNA was extracted, and TaqMan miRNA reverse transcription quantitative PCR (RT-qPCR) was performed to measure serum miRNA levels. Our results revealed that sACE2 is decreased in the T2DM patients and is affected by age, gender, and obesity level. Additionally, 4 miRNAs, which are revealed by in silico analysis to be potentially upstream of ACE2 were detectable in the serum. Among them, miR-421 level was found to be decreased in the serum of diabetic patients, regardless of the presence or absence of diabetic complications, as well as being differential in various body mass index (BMI) groups. The other 3 miRNAs (miR-3909, miR-212-5p, and miR-4677-3p) showed associations with multiple factors including age, gender, BMI, and serum markers, in addition to being correlated to each other. In conclusion, our study reveals a decline in the circulating serum levels of sACE2 in T2DM patients and identified 4 novel miRNAs that were associated with T2DM, which are influenced by different clinical and demographic factors.


Assuntos
Enzima de Conversão de Angiotensina 2/sangue , Complicações do Diabetes/sangue , Diabetes Mellitus Tipo 2/sangue , MicroRNAs/sangue , Adulto , Enzima de Conversão de Angiotensina 2/genética , Enzima de Conversão de Angiotensina 2/metabolismo , Biomarcadores/sangue , Índice de Massa Corporal , COVID-19/sangue , COVID-19/complicações , COVID-19/genética , Complicações do Diabetes/genética , Complicações do Diabetes/virologia , Diabetes Mellitus Tipo 2/genética , Diabetes Mellitus Tipo 2/fisiopatologia , Diabetes Mellitus Tipo 2/virologia , Regulação para Baixo , Feminino , Regulação da Expressão Gênica/genética , Humanos , Masculino , MicroRNAs/genética , Pessoa de Meia-Idade , Obesidade/sangue , Obesidade/genética
9.
Diabetes Metab Syndr ; 15(4): 102143, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34186345

RESUMO

BACKGROUND AND AIMS: We studied the profile and outcome of patients hospitalized for coronavirus disease-19 (COVID-19) infection with and without type 2 diabetes (T2DM). METHODS: In this observational study, clinical details of patients with COVID-19, identified by Reverse Transcription - Polymerase Chain Reaction admitted to 4 hospitals in Chennai, Tamil Nadu, India were collected from May to November 2020. A total of 845 (n = 423 with diabetes, n = 422 without diabetes) were selected for the analysis. Clinical details, biochemical and radiological investigations, diabetes treatment, intensive care, mortality and other adverse outcomes were recorded. Patients with clinical history of T2DM, glycosylated haemoglobin (HbA1c) of ≥6.5% (48 mmol/mol) and/or random blood glucose ≥200 mg/dl (11.1 mmol/l) were included. Statistical analyses were done using chi-square or 't' test and multiple logistic regression analysis. RESULTS: At admission, patients with T2DM were older (p < 0.0001), had higher co-morbidities such as coronary artery disease (p = 0.02), hypertension (p < 0.0001), hypothyroidism (p = 0.03) and renal disorders (p = 0.01) than non-diabetes persons. Requirement for intensive care was higher among them. Acute renal injury or failure, pneumonia and myocardial infarction developed in higher percentage of T2DM. Mortality was significantly higher in T2DM (10.2% vs 5.9%, p = 0.02). However, in the multiple logistic regression analysis, only age (p < 0.0001) and renal disorders (p = 0.002) were significantly associated with mortality. CONCLUSION: Our study showed that mortality was associated with higher age and renal disorders but did not show an association with diabetes, among patients hospitalized for COVID-19 infection.


Assuntos
COVID-19/complicações , Diabetes Mellitus Tipo 2/patologia , Hospitalização/estatística & dados numéricos , SARS-CoV-2/isolamento & purificação , COVID-19/transmissão , COVID-19/virologia , Estudos de Casos e Controles , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/virologia , Feminino , Humanos , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Prognóstico , Fatores de Risco
10.
Gastroenterology ; 161(4): 1257-1269.e13, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34175280

RESUMO

BACKGROUND & AIMS: Obesity and type 2 diabetes mellitus (T2DM) are associated with changes in the gut bacterial composition, but little is known about the role of the viral community (virome) in disease development. This study aims to characterize the gut virome alterations in obese subjects with or without T2DM. METHODS: There were 128 obese subjects (body mass index ≥28 kg/m2) and 101 lean controls (body mass index ≥18.5 and <23 kg/m2) recruited from 2 regions in China (Hong Kong and Kunming). Fecal virome and bacteriome were profiled by shotgun metagenomic sequencing. Gut virome, bacteriome, and viral-bacterial correlations were compared between obese subjects and lean controls. RESULTS: Obese subjects, especially those with T2DM (ObT2), had a decreased gut viral richness and diversity compared with lean controls in the Hong Kong cohort (P < .05), while no significant differences were observed in the Kunming cohort. Eleven viruses, including Escherichia phage, Geobacillus phage, and Lactobacillus phage were enriched in obese subjects (q < .1). Besides, 17 differentially abundant viruses were identified between ObT2 and lean controls (q < .1). Further ecologic analysis revealed that intensive transkingdom correlations between viruses and bacteria observed in lean controls were significantly decreased in ObT2 subjects (P < .001). CONCLUSIONS: Obesity is characterized by altered viral taxonomic composition and weakened viral-bacterial correlations compared with lean controls. Obesity accompanied with T2DM may aggravate the obesity-associated virus signatures, signifying that the gut virome may play an important role in the development of obesity and T2DM. Geographic factors also contributed to the variations of gut virome in obesity and T2DM.


Assuntos
Diabetes Mellitus Tipo 2/virologia , Intestinos/virologia , Obesidade/virologia , Viroma , Adolescente , Adulto , Idoso , Estudos de Casos e Controles , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/microbiologia , Disbiose , Fezes/microbiologia , Fezes/virologia , Feminino , Microbioma Gastrointestinal , Hong Kong , Interações Hospedeiro-Patógeno , Humanos , Intestinos/microbiologia , Masculino , Metagenoma , Metagenômica , Pessoa de Meia-Idade , Obesidade/diagnóstico , Obesidade/microbiologia , Viroma/genética , Adulto Jovem
12.
Life Sci ; 275: 119371, 2021 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-33745895

RESUMO

AIMS: Type 2 diabetes is considered to be one of the essential risks of adverse outcomes in coronavirus disease 2019 (COVID-19).1 Metformin and insulin were suggested to affect the outcomes. However, divergent views are still expressed. We aim to gain further insight into metformin and insulin in both pre-admission and in-hospital usage in COVID-19 patients with pre-existed type 2 diabetes. MAIN METHODS: This is a multicentral retrospective study of the hospital confirmed COVID-19 patients between January 19 to April 09, 2020, who admitted to 3 main hospitals in Xiangyang city, China. The effect of type 2 diabetes, metformin, and insulin on COVID-19 were analyzed, respectively. Clinical characteristics, blood laboratory indices, clinical observational indices, and outcomes of these cases were collected. KEY FINDINGS: A total of 407 confirmed COVID-19 patients (including 50 pre-existed type 2 diabetes) were eligible in our study. COVID-19 patients with type 2 diabetes had more adverse outcomes than non-diabetes (OR2: mortality: 1.46 [95% CI3 1.11, 1.93]; P < 0.001). Pre-admission metformin usage showed a declined intensive care unit admission rate in a dose-dependent fashion (OR 0.04 [95% CI 0.00, 0.99]; adjust P = 0.049). While in-hospital insulin usage attempted to increase the invasive ventilation (8 [34.8%] vs. 1 [3.7%], adjust P = 0.043), independent of age and blood glucose. SIGNIFICANCE: Our study indicated that pre-admitted metformin usage may have beneficial effects on COVID-19 with pre-existed type 2 diabetes, insulin should be used sparingly in the hospital stay.


Assuntos
COVID-19/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Hipoglicemiantes/uso terapêutico , Insulina/uso terapêutico , Unidades de Terapia Intensiva/estatística & dados numéricos , Metformina/uso terapêutico , SARS-CoV-2/isolamento & purificação , Adulto , Glicemia , COVID-19/transmissão , COVID-19/virologia , China/epidemiologia , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/virologia , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
13.
Int J Clin Pharm ; 43(3): 764-767, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33751323

RESUMO

Sodium-glucose co-transporter 2 inhibitors (SGLT2i) are a new class of glucose-lowering agents which have changed the landscape of diabetes therapy, due to their remarkable cardiorenal protective properties. The attack of severe acute respiratory syndrome coronavirus 2 on the heart and kidneys shares similarities with diabetes; therefore, the notion that SGLT2i might have a role in the future management of Coronavirus Disease 2019 (COVID-19) is based on a solid pathophysiological hypothesis. SGLT2i have been proved to decrease the expression of proinflammatory cytokines, ameliorate oxidative stress and reduce sympathetic activity, thus resulting in downregulation of both systemic and adipose tissue inflammation. On the other hand, they have been linked to an increased risk of euglycemic diabetic ketoacidosis. Therefore, the efficacy and safety of SGLT2i in COVID-19 are still debatable and remain to be clarified by ongoing randomized trials, to assess whether the benefits of treatment with these drugs outweigh the potential risks.


Assuntos
COVID-19/complicações , Diabetes Mellitus Tipo 2/complicações , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/virologia , Humanos , Medição de Risco , Inibidores do Transportador 2 de Sódio-Glicose/efeitos adversos , Tratamento Farmacológico da COVID-19
14.
An. R. Acad. Nac. Farm. (Internet) ; 87(1): 15-26, ene.-mar. 2021. ilus, graf
Artigo em Espanhol | IBECS | ID: ibc-201631

RESUMO

La infección crónica por el virus de la hepatitis C (VHC) está asociada con la resistencia a la insulina y la diabetes tipo 2. El objetivo general de este estudio fue evaluar los efectos del sofosbuvir sobre la resistencia a la insulina inducida por el VHC. Para ello, se realizó un estudio clínico que incluyó 42 pacientes con VHC resistentes a la insulina, que fueron tratados con diferentes regímenes antivirales basados en sofosbuvir. Asimismo, se utilizó una línea de hepatocitos humanos que expresan un replicón del VHC de manera estable para determinar los mecanismos moleculares implicados en la acción de la insulina regulada por sofosbuvir. Todos los pacientes alcanzaron una respuesta virológica sostenida después del tratamiento con sofosbuvir y se observó una reducción significativa en los marcadores de daño hepático, así como en el estadio de fibrosis. El índice de resistencia a la insulina (HOMA) mejoró significativamente a lo largo del estudio. A nivel molecular, el tratamiento con sofosbuvir mejoró la activación de la cascada de señalización de la insulina tras la estimulación con dicha hormona en los hepatocitos con VHC, y, en consecuencia, revirtió la expresión elevada de genes gluconeogénicos, el aumento de la producción de glucosa y la deficiencia de la síntesis de glucógeno en estas células. En conclusión, estos resultados sugieren que el sofosbuvir mejora la respuesta deficiente a la insulina originada por la infección del VHC, proporcionando novedosas evidencias en cuanto a los mecanismos moleculares implicados en la sensibilización a la insulina inducida por este tratamiento


Chronic hepatitis C virus (HCV) infection is associated with insulin resistance and type 2 diabetes. The overall aim of this study was to evaluate the effects of sofosbuvir (SOF) on HCV-induced insulin resistance. Clinical parameters were recorded and insulin resistance index (HOMA) calculated from 42 insulin-resistant HCV-patients who underwent SOF-based regimens, at baseline, at the end of treatment (EoT), and at one year after the EoT. Likewise, Huh7 cells expressing full-length HCV replicons were used to elucidate the molecular mechanisms involved in insulin action regulated by SOF. All patients reached a sustained virological response after SOF treatment and, as expected, a significant reduction in liver damage markers and fibrosis stage was observed at the EoT that remained one year later. HOMA significantly improved throughout the study time period. Besides, an increase of total cholesterol, low-density lipoprotein cholesterol and apolipoprotein B levels were maintained over time after the EoT. At the molecular level, SOF treatment improved the activation of the insulin signalling cascade after stimulation with the hormone in HCV-hepatocytes and, accordingly, reversed the elevated expression of gluconeogenic genes, the increased glucose production and the impairment of glycogen synthesis induced by HCV. Furthermore, SOF challenge induced an increase of insulin receptor substrate 1 (IRS1) content parallel to a reduction in its serine phosphorylation in HCV-hepatocytes. These results provide novel evidence about the molecular mechanisms involved in the hepatic insulin sensitization induced by SOF treatment involving the recovery of IRS1 protein levels as a hallmark of SOF effects


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Sofosbuvir/farmacologia , Antivirais/farmacologia , Resistência à Insulina , Hepacivirus/efeitos dos fármacos , Hepatite B Crônica/tratamento farmacológico , Estudos Retrospectivos , Amostragem Aleatória Simples , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/virologia , Hepatite B Crônica/metabolismo , Imunofluorescência , Imunoprecipitação , Western Blotting , Reação em Cadeia da Polimerase em Tempo Real , Células Cultivadas , Carga Viral , Glucose/metabolismo , Proteínas Substratos do Receptor de Insulina/análise , Proteínas Substratos do Receptor de Insulina/efeitos dos fármacos , Resultado do Tratamento , Resposta Viral Sustentada
15.
J Clin Endocrinol Metab ; 106(5): e2025-e2034, 2021 04 23.
Artigo em Inglês | MEDLINE | ID: mdl-33524125

RESUMO

PURPOSE: Comorbidities making up metabolic syndrome (MetS), such as obesity, type 2 diabetes, and chronic cardiovascular disease can lead to increased risk of coronavirus disease-2019 (COVID-19) with a higher morbidity and mortality. SARS-CoV-2 antibodies are higher in severely or critically ill COVID-19 patients, but studies have not focused on levels in convalescent patients with MetS, which this study aimed to assess. METHODS: This retrospective study focused on adult convalescent outpatients with SARS-CoV-2 positive serology during the COVID-19 pandemic at NewYork Presbyterian/Weill Cornell. Data collected for descriptive and correlative analysis included SARS-COV-2 immunoglobin G (IgG) levels and history of MetS comorbidities from April 17, 2020 to May 20, 2020. Additional data, including SARS-CoV-2 IgG levels, body mass index (BMI), hemoglobin A1c (HbA1c) and lipid levels were collected and analyzed for a second cohort from May 21, 2020 to June 21, 2020. SARS-CoV-2 neutralizing antibodies were measured in a subset of the study cohort. RESULTS: SARS-CoV-2 IgG levels were significantly higher in convalescent individuals with MetS comorbidities. When adjusted for age, sex, race, and time duration from symptom onset to testing, increased SARS-CoV-2 IgG levels remained significantly associated with obesity (P < 0.0001). SARS-CoV-2 IgG levels were significantly higher in patients with HbA1c ≥6.5% compared to those with HbA1c <5.7% (P = 0.0197) and remained significant on multivariable analysis (P = 0.0104). A positive correlation was noted between BMI and antibody levels [95% confidence interval: 0.37 (0.20-0.52) P < 0.0001]. Neutralizing antibody titers were higher in COVID-19 individuals with BMI ≥ 30 (P = 0.0055). CONCLUSION: Postconvalescent SARS-CoV-2 IgG and neutralizing antibodies are elevated in obese patients, and a positive correlation exists between BMI and antibody levels.


Assuntos
Anticorpos Neutralizantes/imunologia , COVID-19/imunologia , Imunoglobulina G/imunologia , Síndrome Metabólica/imunologia , Adulto , Anticorpos Neutralizantes/sangue , COVID-19/sangue , COVID-19/complicações , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/imunologia , Diabetes Mellitus Tipo 2/virologia , Feminino , Humanos , Imunoglobulina G/sangue , Masculino , Síndrome Metabólica/sangue , Síndrome Metabólica/virologia , Pessoa de Meia-Idade , Obesidade/sangue , Obesidade/imunologia , Obesidade/virologia , Estudos Retrospectivos
16.
Int Immunopharmacol ; 93: 107406, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33601246

RESUMO

In patients with COVID-19,type 2 diabetes mellitus (T2DM) can impair the function of nasal-associated lymphoid tissue (NALT) and result in olfactory dysfunction. Exploring the causative alterations of T2DM within the nasal mucosa and NALT could provide insight into the pathogenic mechanisms and bridge the gap between innate immunity and adaptive immunity for virus clearance. Here, we designed a case-control study to compare the olfactory function (OF) among the groups of normal control (NC), COVID-19 mild pneumonia (MP), and MP patients with T2DM (MPT) after a 6-8 months' recovery, in which MPT had a higher risk of hyposmia than MP and NC. No significant difference was found between the MP and NC. This elevated risk of hyposmia indicated that T2DM increased COVID-19 susceptibility in the nasal cavity with unknown causations. Therefore, we used the T2DM animal model (db/db mice) to evaluate how T2DM increased COVID-19 associated susceptibilities in the nasal mucosa and lymphoid tissues. Db/db mice demonstratedupregulated microvasculature ACE2 expression and significant alterations in lymphocytes component of NALT. Specifically, db/db mice NALT had increased immune-suppressive TCRγδ+ CD4-CD8- T and decreased immune-effective CD4+/CD8+ TCRß+ T cells and decreased mucosa-protective CD19+ B cells. These results indicated that T2DM could dampen the first-line defense of nasal immunity, and further mechanic studies of metabolic damage and NALT restoration should be one of the highest importance for COVID-19 healing.


Assuntos
Anosmia/imunologia , Anosmia/virologia , COVID-19/imunologia , Diabetes Mellitus Tipo 2/imunologia , Diabetes Mellitus Tipo 2/virologia , Adulto , Enzima de Conversão de Angiotensina 2/metabolismo , Animais , Anosmia/metabolismo , Linfócitos B/imunologia , COVID-19/metabolismo , COVID-19/fisiopatologia , Estudos de Casos e Controles , Diabetes Mellitus Tipo 2/metabolismo , Feminino , Humanos , Imunidade nas Mucosas/imunologia , Tecido Linfoide/imunologia , Macrófagos/imunologia , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Pessoa de Meia-Idade , Modelos Animais , Mucosa Nasal/imunologia , Mucosa Olfatória/metabolismo , Fatores de Risco , SARS-CoV-2/isolamento & purificação , Serina Endopeptidases/metabolismo , Linfócitos T/imunologia
17.
Diabetes Res Clin Pract ; 175: 108695, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33577905

RESUMO

In patients with diabetes hospitalized for COVID-19 in CORONADO study, 2.8% had a newly discovered. 2.8% had a newly discovered diabetes (NDD): mean age 60.2 ± 12.5 years and HbA1C 9.0 ± 2.5%. When compared with center, age and sex-matched patients with established type 2 diabetes, NDD was not significantly associated with a more severe COVID-19 prognosis.


Assuntos
COVID-19/diagnóstico , COVID-19/metabolismo , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/virologia , COVID-19/epidemiologia , Diabetes Mellitus Tipo 2/epidemiologia , Feminino , Hospitalização , Humanos , Pacientes Internados , Masculino , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto , Pandemias , Fenótipo , Prognóstico , Estudos Retrospectivos , SARS-CoV-2/isolamento & purificação
18.
Medicine (Baltimore) ; 100(4): e24354, 2021 Jan 29.
Artigo em Inglês | MEDLINE | ID: mdl-33530229

RESUMO

ABSTRACT: Diabetes mellitus (DM) increases the risk of developing hepatocellular carcinoma (HCC), and how DM affects the prognosis of HCC have not been elucidated. The aim of this study was to compare clinicopathological characteristics and survival between hepatitis B virus (HBV)-related HCC patients with and without DM and to determine risk factors for overall survival after hepatectomy.Among 474 patients with HBV-related HCC, 119 patients had DM. Patients were divided into the diabetic group and nondiabetic group. The short-term and long-term outcomes were evaluated by using propensity score matching analysis.After 1:2 propensity score matching, there were 107 patients in diabetic group, 214 patients in nondiabetic group. The proportion of vessels invasion were higher in diabetic group. The overall survival rate in the diabetic group was 44.7% at 3 years, which was lower than that in the nondiabetic group (56.1%, P = .025). The multivariate analysis indicated that fasting blood glucose >7.0, capsular invasion, microvascular invasion and satellite were independent risk factor of poor prognosis in HCC.DM dose affect the recurrence-free survival and overall survival in HBV-related HCC patients after hepatectomy. One of the more significant findings to emerge from this study is that DM induced higher proportion of major vessel invasion in HCC patients implied unfavorable prognosis.


Assuntos
Carcinoma Hepatocelular/mortalidade , Diabetes Mellitus Tipo 2/virologia , Vírus da Hepatite B , Hepatite B/complicações , Neoplasias Hepáticas/mortalidade , Glicemia/análise , Carcinoma Hepatocelular/cirurgia , Carcinoma Hepatocelular/virologia , Diabetes Mellitus Tipo 2/sangue , Feminino , Hepatectomia/mortalidade , Hepatite B/virologia , Humanos , Neoplasias Hepáticas/cirurgia , Neoplasias Hepáticas/virologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prognóstico , Pontuação de Propensão , Fatores de Risco , Taxa de Sobrevida , Resultado do Tratamento
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