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1.
Int J Mol Sci ; 25(9)2024 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-38732001

RESUMO

Lipodystrophies (LDs) are rare, complex disorders of the adipose tissue characterized by selective fat loss, altered adipokine profile and metabolic impairment. Sirtuins (SIRTs) are class III NAD+-dependent histone deacetylases linked to fat metabolism. SIRT1 plays a critical role in metabolic health by deacetylating target proteins in tissue types including liver, muscle, and adipose. Circulating SIRT1 levels have been found to be reduced in obesity and increased in anorexia nervosa and patients experiencing weight loss. We evaluated circulating SIRT1 levels in relation to fat levels in 32 lipodystrophic patients affected by congenital or acquired LDs compared to non-LD subjects (24 with anorexia nervosa, 22 normal weight, and 24 with obesity). SIRT1 serum levels were higher in LDs than normal weight subjects (mean ± SEM 4.18 ± 0.48 vs. 2.59 ± 0.20 ng/mL) and subjects with obesity (1.7 ± 0.39 ng/mL), whereas they were close to those measured in anorexia nervosa (3.44 ± 0.46 ng/mL). Our findings show that within the LD group, there was no relationship between SIRT1 levels and the amount of body fat. The mechanisms responsible for secretion and regulation of SIRT1 in LD deserve further investigation.


Assuntos
Lipodistrofia , Sirtuína 1 , Humanos , Sirtuína 1/sangue , Sirtuína 1/metabolismo , Feminino , Adulto , Masculino , Lipodistrofia/sangue , Lipodistrofia/metabolismo , Tecido Adiposo/metabolismo , Obesidade/sangue , Obesidade/metabolismo , Adulto Jovem , Adolescente , Pessoa de Meia-Idade , Anorexia Nervosa/sangue , Anorexia Nervosa/metabolismo
2.
Front Endocrinol (Lausanne) ; 14: 1249233, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38027122

RESUMO

Background: Primary care providers (PCPs) play an essential role in obesity care as they represent the first contact for patients seeking weight loss interventions. Objective: This study explored the knowledge, experiences, and perceptions of PCPs in the Lazio Region of Italy in the management of obesity. Design and subjects: We conducted an anonymous survey delivered from March to July 2022 via the newsletter of Rome Provincial Order of Physicians and Dentists and at the annual meeting of the regional section of the Italian Obesity Society. Approach: The survey consisted of 24 closed-ended questions grouped into 5 sections: sociodemographic and work information; assessment of obesity; management of obesity; connections with regional Centres for Obesity Management; attitudes towards obesity. Key results: A total of 92 PCPs accessed the survey. Of those, 2.2% were excluded because they did not see any patients with obesity. A total of 68 PCPs (75.6%) had complete questionnaires and were included in this analysis. All participants reported asking their patients about their eating habits, lifestyle, and clinical complications at the first assessment. Body weight and blood pressure were measured by 98.5% of participants and 82% calculate body mass index (BMI), while a small proportion of PCPs analysed body composition and fat distribution. Over 80% prescribed laboratory tests and ECG. Approximately 40% of PCPs did not refer patients for nutritional counselling, and most prescribed a low-calorie diet. Sixty-three percent referred patients to an endocrinologist, 48.5% to a psychotherapist, and a minority to specialists for obesity complications. Twenty-three percent prescribed anti-obesity medications and 46.5% referred patients for bariatric surgery only in severe cases. Ninety-one percent stated that obesity is "a complex and multifactorial disease" and 7.4% considered obesity to be secondary to other conditions. Conclusions: Despite most PCPs adopt a correct approach to manage patients with obesity, many aspects could be improved to ensure optimal and multidisciplinary management.


Assuntos
Manejo da Obesidade , Médicos de Atenção Primária , Humanos , Obesidade/epidemiologia , Obesidade/terapia , Peso Corporal , Inquéritos e Questionários
3.
Nutrients ; 15(15)2023 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-37571368

RESUMO

Sleep is a vital process essential for survival. The trend of reduction in the time dedicated to sleep has increased in industrialized countries, together with the dramatic increase in the prevalence of obesity and diabetes. Short sleep may increase the risk of obesity, diabetes and cardiovascular disease, and on the other hand, obesity is associated with sleep disorders, such as obstructive apnea disease, insomnia and excessive daytime sleepiness. Sleep and metabolic disorders are linked; therefore, identifying the physiological and molecular pathways involved in sleep regulation and metabolic homeostasis can play a major role in ameliorating the metabolic health of the individual. Approaches aimed at reducing body weight could provide benefits for both cardiometabolic risk and sleep quality, which indirectly, in turn, may determine an amelioration of the cardiometabolic phenotype of individuals. We revised the literature on weight loss and sleep, focusing on the mechanisms and the molecules that may subtend this relationship in humans as in animal models.


Assuntos
Doenças Cardiovasculares , Diabetes Mellitus , Animais , Humanos , Sono/fisiologia , Obesidade , Redução de Peso , Modelos Animais , Doenças Cardiovasculares/complicações
4.
Int J Mol Sci ; 24(7)2023 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-37047347

RESUMO

Alzheimer's disease (AD) is a type of dementia whose cause is incompletely defined. Copper (Cu) involvement in AD etiology was confirmed by a meta-analysis on about 6000 participants, showing that Cu levels were decreased in AD brain specimens, while Cu and non-bound ceruloplasmin Cu (non-Cp Cu) levels were increased in serum/plasma samples. Non-Cp Cu was advocated as a stratification add-on biomarker of a Cu subtype of AD (CuAD subtype). To further circumstantiate this concept, we evaluated non-Cp Cu reliability in classifying subtypes of AD based on the characterization of the cognitive profile. The stratification of the AD patients into normal AD (non-Cp Cu ≤ 1.6 µmol/L) and CuAD (non-Cp Cu > 1.6 µmol/L) showed a significant difference in executive function outcomes, even though patients did not differ in disease duration and severity. Among the Cu-AD patients, a 76-year-old woman showed significantly abnormal levels in the Cu panel and underwent whole exome sequencing. The CuAD patient was detected with possessing the homozygous (c.1486T > C; p.(Ter496Argext*19) stop-loss variant in the RGS7 gene (MIM*602517), which encodes for Regulator of G Protein Signaling 7. Non-Cp Cu as an add-on test in the AD diagnostic pathway can provide relevant information about the underlying pathological processes in subtypes of AD and suggest specific therapeutic options.


Assuntos
Doença de Alzheimer , Proteínas RGS , Feminino , Humanos , Idoso , Cobre/metabolismo , Ceruloplasmina/genética , Ceruloplasmina/metabolismo , Doença de Alzheimer/diagnóstico , Doença de Alzheimer/genética , Doença de Alzheimer/metabolismo , Reprodutibilidade dos Testes , Cognição , Proteínas RGS/metabolismo
5.
Front Nutr ; 10: 1058364, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36761216

RESUMO

Introduction: The Very Low-Calorie Ketogenic Diet (VLCKD) has emerged as a safe and effective intervention for the management of metabolic disease. Studies examining weight loss predictors are scarce and none has investigated such factors upon VLCKD treatment. Among the molecules involved in energy homeostasis and, more specifically, in metabolic changes induced by ketogenic diets, Fibroblast Growth Factor 21 (FGF21) is a hepatokine with physiology that is still unclear. Methods: We evaluated the impact of a VLCKD on weight loss and metabolic parameters and assessed weight loss predictors, including FGF21. VLCKD is a severely restricted diet (<800 Kcal/die), characterized by a very low carbohydrate intake (<50 g/day), 1.2-1.5 g protein/kg of ideal body weight and 15-30 g of fat/day. We treated 34 patients with obesity with a VLCKD for 45 days. Anthropometric parameters, body composition, and blood and urine chemistry were measured before and after treatment. Results: We found a significant improvement in body weight and composition and most metabolic parameters. Circulating FGF21 decreased significantly after the VLCKD [194.0 (137.6-284.6) to 167.8 (90.9-281.5) p < 0.001] and greater weight loss was predicted by lower baseline FGF21 (Beta = -0.410; p = 0.012), male sex (Beta = 0.472; p = 0.011), and central obesity (Beta = 0.481; p = 0.005). Discussion: VLCKD is a safe and effective treatment for obesity and obesity related metabolic derangements. Men with central obesity and lower circulating FGF21 may benefit more than others in terms of weight loss obtained following this diet. Further studies investigating whether this is specific to this diet or to any caloric restriction are warranted.

6.
Int J Mol Sci ; 23(24)2022 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-36555502

RESUMO

Overnutrition and its sequelae have become a global concern due to the increasing incidence of obesity and insulin resistance. A ketogenic diet (KD) is widely used as a dietary treatment for metabolic disorders. Sirtuin1 (SIRT1), a metabolic sensor which regulates fat homeostasis, is modulated by dietary interventions. However, the influence of nutritional ketosis on SIRT1 is still debated. We examined the effect of KD on adipose tissue, liver, and serum levels of SIRT1 in mice. Adult C57BL/6J male mice were randomly assigned to two isocaloric dietary groups and fed with either high-fat KD or normal chow (NC) for 4 weeks. Serum SIRT1, beta-hydroxybutyrate (ßHB), glucose, and triglyceride levels, as well as SIRT1 expression in visceral (VAT), subcutaneous (SAT), and brown (BAT) adipose tissues, and in the liver, were measured. KD-fed mice showed an increase in serum ßHB in parallel with serum SIRT1 (r = 0.732, p = 0.0156), and increased SIRT1 protein expression in SAT and VAT. SIRT1 levels remained unchanged in BAT and in the liver, which developed steatosis. Normal glycemia and triglycerides were observed. Under a KD, serum and white fat phenotypes show higher SIRT1, suggesting that one of the molecular mechanisms underlying a KD's potential benefits on metabolic health involves a synergistic interaction with SIRT1.


Assuntos
Dieta Cetogênica , Camundongos , Masculino , Animais , Sirtuína 1/genética , Sirtuína 1/metabolismo , Camundongos Endogâmicos C57BL , Obesidade/etiologia , Obesidade/metabolismo , Dieta Hiperlipídica/efeitos adversos , Tecido Adiposo/metabolismo , Tecido Adiposo Branco/metabolismo , Ácido 3-Hidroxibutírico
7.
Vaccines (Basel) ; 10(8)2022 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-36016081

RESUMO

BACKGROUND: The research aimed to investigate the incidence of SARS-CoV-2 breakthrough infections and their determinants in a large European cohort of more than 60,000 health workers. METHODS: A multicentric retrospective cohort study, involving 12 European centers, was carried out within the ORCHESTRA project, collecting data up to 18 November 2021 on fully vaccinated health workers. The cumulative incidence of SARS-CoV-2 breakthrough infections was investigated with its association with occupational and social-demographic characteristics (age, sex, job title, previous SARS-CoV-2 infection, antibody titer levels, and time from the vaccination course completion). RESULTS: Among 64,172 health workers from 12 European health centers, 797 breakthrough infections were observed (cumulative incidence of 1.2%). The primary analysis using individual data on 8 out of 12 centers showed that age and previous infection significantly modified breakthrough infection rates. In the meta-analysis of aggregated data from all centers, previous SARS-CoV-2 infection and the standardized antibody titer were inversely related to the risk of breakthrough infection (p = 0.008 and p = 0.007, respectively). CONCLUSION: The inverse correlation of antibody titer with the risk of breakthrough infection supports the evidence that vaccination plays a primary role in infection prevention, especially in health workers. Cellular immunity, previous clinical conditions, and vaccination timing should be further investigated.

8.
Cells ; 11(15)2022 08 04.
Artigo em Inglês | MEDLINE | ID: mdl-35954264

RESUMO

Obesity is associated with increased cardiovascular morbidity. Adult patients with growth hormone deficiency (GHD) show morpho-functional cardiological alterations. A total of 353 overweight/obese patients are enrolled in the period between 2009 and 2019 to assess the relationships between GH secretory capacity and the metabolic phenotype, cardiovascular risk factors, body composition and cardiac echocardiographic parameters. All patients underwent GHRH + arginine test to evaluate GH secretory capacity, DEXA for body composition assessment and transthoracic echocardiography. Blood samples are also collected for the evaluation of metabolic parameters. In total, 144 patients had GH deficiency and 209 patients had normal GH secretion. In comparing the two groups, we found significant differences in body fat distribution with predominantly visceral adipose tissue accumulation in GHD patients. Metabolic syndrome is more prevalent in the GHD group. In particular, fasting glycemia, triglycerides and systolic and diastolic blood pressure are found to be linearly correlated with GH secretory capacity. Epicardial fat thickness, E/A ratio and indexed ventricular mass are worse in the GHD group. In the population studied, metabolic phenotype, body composition, cardiovascular risk factors and cardiac morphology are found to be related to the GH secretory capacity. GH secretion in the obese patient seems to be an important determinant of metabolic health.


Assuntos
Hormônio do Crescimento Humano , Sobrepeso , Composição Corporal , Estudos Transversais , Hormônio do Crescimento Humano/metabolismo , Humanos , Obesidade/metabolismo
9.
Nutrients ; 14(15)2022 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-35956321

RESUMO

Ketone bodies (KBs) and Sirtuin-1 (SIRT1) have received increasing attention over the past two decades given their pivotal function in a variety of biological contexts, including transcriptional regulation, cell cycle progression, inflammation, metabolism, neurological and cardiovascular physiology, and cancer. As a consequence, the modulation of KBs and SIRT1 is considered a promising therapeutic option for many diseases. The direct regulation of gene expression can occur in vivo through histone modifications mediated by both SIRT1 and KBs during fasting or low-carbohydrate diets, and dietary metabolites may contribute to epigenetic regulation, leading to greater genomic plasticity. In this review, we provide an updated overview of the epigenetic interactions between KBs and SIRT1, with a particular glance at their central, synergistic roles for metabolic health.


Assuntos
Corpos Cetônicos , Sirtuína 1 , Metabolismo Energético/fisiologia , Epigênese Genética , Jejum , Corpos Cetônicos/metabolismo , Sirtuína 1/genética , Sirtuína 1/metabolismo
10.
Nutrients ; 14(7)2022 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-35406023

RESUMO

Chrononutrition is an emerging branch of chronobiology focusing on the profound interactions between biological rhythms and metabolism. This framework suggests that, just like all biological processes, even nutrition follows a circadian pattern. Recent findings elucidated the metabolic roles of circadian clocks in the regulation of both hormone release and the daily feeding-fasting cycle. Apart from serving as energy fuel, ketone bodies play pivotal roles as signaling mediators and drivers of gene transcription, promoting food anticipation and loss of appetite. Herein we provide a comprehensive review of the literature on the effects of the ketogenic diets on biological processes that follow circadian rhythms, among them appetite, sleep, and endocrine function.


Assuntos
Relógios Circadianos , Ritmo Circadiano , Apetite , Relógios Circadianos/fisiologia , Ritmo Circadiano/fisiologia , Hormônios , Corpos Cetônicos , Sono/fisiologia
11.
Nutrients ; 14(5)2022 Feb 25.
Artigo em Inglês | MEDLINE | ID: mdl-35267956

RESUMO

Sirtuin1 (SIRT1) and sclerostin play important roles in adipose tissue and bone metabolism. We evaluated the circulating SIRT1 and sclerostin relationship with mass and quality of bone while considering the degree of adiposity. Sixty-six premenopausal women (16 underweight, 25 normal weight and 25 with obesity), aged <50 years, were enrolled. Plasma SIRT1, sclerostin and DXA body composition (total fat mass (FM), abdominal visceral adipose tissue, lean mass, trabecular bone score (TBS) and lumbar spine and femoral neck (FN) bone mineral density (BMD)) were assessed. The patients with obesity showed the lowest SIRT1 and TBS values and the highest sclerostin concentrations; BMD increased with FM and BMI and had an inverse association with SIRT1. Sclerostin was negatively correlated with SIRT1 (ρ = −0.37, p = 0.002). When spine BMD, FN BMD and TBS were standardized for BMI, a positive correlation with SIRT1 and a negative correlation with sclerostin were seen (p < 0.005). In the regression analysis, sclerostin was the best independent, negative predictor for BMD and TBS, while SIRT1 directly predicted TBS (p < 0.05). In conclusion, blood measurement of SIRT1 and sclerostin could represent a snapshot of the bone status that, taking into account the degree of adiposity, may reduce the interference of confounding factors in the interpretation of bone health parameters.


Assuntos
Adiposidade , Sirtuína 1 , Absorciometria de Fóton , Densidade Óssea , Feminino , Humanos , Pessoa de Meia-Idade , Obesidade
12.
Vaccines (Basel) ; 10(1)2022 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-35062740

RESUMO

Obesity is associated with a poor COVID-19 prognosis, and it seems associated with reduced humoral response to vaccination. Public health campaigns have advocated for weight loss in subjects with obesity, hoping to eliminate this risk. However, no evidence proves that weight loss leads to a better prognosis or a stronger immune response to vaccination. We aimed to investigate the impact of rapid weight loss on the adaptive immune response in subjects with morbid obesity. Twenty-one patients followed a hypocaloric, very-low-carbohydrate diet one week before to one week after the two mRNA vaccine doses. The diet's safety and efficacy were assessed, and the adaptive humoral (anti-SARS CoV-2 S antibodies, Abs) and cell-mediated responses (IFNγ secretion on stimulation with two different SARS CoV-2 peptide mixes, IFNγ-1 and IFNγ-2) were evaluated. The patients lost ~10% of their body weight with metabolic improvement. A high baseline BMI correlated with a poor immune response (R -0.558, p = 0.013 for IFNγ-1; R -0.581, p = 0.009 for IFNγ-2; R -0.512, p = 0.018 for Abs). Furthermore, there was a correlation between weight loss and higher IFNγ-2 (R 0.471, p = 0.042), and between blood glucose reduction and higher IFNγ-1 (R 0.534, p = 0.019), maintained after weight loss and waist circumference reduction adjustment. Urate reduction correlated with higher Abs (R 0.552, p = 0.033). In conclusion, obesity is associated with a reduced adaptive response to a COVID-19 mRNA vaccine, and weight loss and metabolic improvement may reverse the effect.

13.
Nutrients ; 14(2)2022 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-35057554

RESUMO

The key factors playing a role in the pathogenesis of metabolic alterations observed in many patients with obesity have not been fully characterized. Their identification is crucial, and it would represent a fundamental step towards better management of this urgent public health issue. This aim could be accomplished by exploiting the potential of machine learning (ML) technology. In a single-centre study (n = 2567), we used an ML analysis to cluster patients with metabolically healthy (MHO) or metabolically unhealthy (MUO) obesity, based on several clinical and biochemical variables. The first model provided by ML was able to predict the presence/absence of MHO with an accuracy of 66.67% and 72.15%, respectively, and included the following parameters: HOMA-IR, upper body fat/lower body fat, glycosylated haemoglobin, red blood cells, age, alanine aminotransferase, uric acid, white blood cells, insulin-like growth factor 1 (IGF-1) and gamma-glutamyl transferase. For each of these parameters, ML provided threshold values identifying either MUO or MHO. A second model including IGF-1 zSDS, a surrogate marker of IGF-1 normalized by age and sex, was even more accurate with a 71.84% and 72.3% precision, respectively. Our results demonstrated high IGF-1 levels in MHO patients, thus highlighting a possible role of IGF-1 as a novel metabolic health parameter to effectively predict the development of MUO using ML technology.


Assuntos
Aprendizado de Máquina , Síndrome Metabólica/diagnóstico , Obesidade Metabolicamente Benigna/diagnóstico , Obesidade/diagnóstico , Absorciometria de Fóton/métodos , Tecido Adiposo/metabolismo , Adulto , Alanina Transaminase/sangue , Inteligência Artificial , Biomarcadores/sangue , Feminino , Hemoglobinas Glicadas/análise , Nível de Saúde , Humanos , Fator de Crescimento Insulin-Like I/análise , Masculino , Síndrome Metabólica/epidemiologia , Pessoa de Meia-Idade , Obesidade/epidemiologia , Obesidade Metabolicamente Benigna/epidemiologia , Prognóstico , Estudos Retrospectivos , Fatores de Risco
14.
Diabetes Metab Res Rev ; 38(1): e3465, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-33955644

RESUMO

AIMS: To explore variables associated with the serological response following COVID-19 mRNA vaccine. METHODS: Eighty-six healthcare workers adhering to the vaccination campaign against COVID-19 were enrolled in January-February 2021. All subjects underwent two COVID-19 mRNA vaccine inoculations (Pfizer/BioNTech) separated by 3 weeks. Blood samples were collected before the 1st and 1-4 weeks after the second inoculation. Clinical history, demographics, and vaccine side effects were recorded. Baseline anthropometric parameters were measured, and body composition was performed through dual-energy-X-ray absorptiometry. RESULTS: Higher waist circumference was associated with lower antibody (Ab) titres (R = -0.324, p = 0.004); smokers had lower levels compared to non-smokers [1099 (1350) vs. 1921 (1375), p = 0.007], as well as hypertensive versus normotensive [650 ± 1192 vs. 1911 (1364), p = 0.001] and dyslipideamic compared to those with normal serum lipids [534 (972) vs 1872 (1406), p = 0.005]. Multivariate analysis showed that higher waist circumference, smoking, hypertension, and longer time elapsed since second vaccine inoculation were associated with lower Ab titres, independent of BMI, age. and gender. CONCLUSIONS: Central obesity, hypertension, and smoking are associated with lower Ab titres following COVID-19 vaccination. Although it is currently impossible to determine whether lower SARS-CoV-2 Abs lead to higher likelihood of developing COVID-19, it is well-established that neutralizing antibodies correlate with protection against several viruses including SARS-CoV-2. Our findings, therefore, call for a vigilant approach, as subjects with central obesity, hypertension, and smoking could benefit from earlier vaccine boosters or different vaccine schedules.


Assuntos
Anticorpos Antivirais , Vacina BNT162 , SARS-CoV-2 , Anticorpos Antivirais/sangue , Vacina BNT162/administração & dosagem , Vacina BNT162/imunologia , COVID-19/prevenção & controle , Humanos , Hipertensão/imunologia , Obesidade Abdominal/imunologia , SARS-CoV-2/imunologia , Fumar/imunologia
15.
Sci Rep ; 11(1): 23290, 2021 12 02.
Artigo em Inglês | MEDLINE | ID: mdl-34857816

RESUMO

The Fuegians, ancient inhabitants of Tierra del Fuego, are an exemplary case of a cold-adapted population, since they were capable of living in extreme climatic conditions without any adequate clothing. However, the mechanisms of their extraordinary resistance to cold remain enigmatic. Brown adipose tissue (BAT) plays a crucial role in this kind of adaptation, besides having a protective role on the detrimental effect of low temperatures on bone structure. Skeletal remains of 12 adult Fuegians, collected in the second half of XIX century, were analyzed for bone mineral density and structure. We show that, despite the unfavorable climate, bone mineral density of Fuegians was close to that seen in modern humans living in temperate zones. Furthermore, we report significant differences between Fuegians and other cold-adapted populations in the frequency of the Homeobox protein Hox-C4 (HOXC4) rs190771160 variant, a gene involved in BAT differentiation, whose identified variant is predicted to upregulate HOXC4 expression. Greater BAT accumulation might therefore explain the Fuegians extreme cold-resistance and the protection against major cold-related damage. These results increase our understanding of how ecological challenges have been important drivers of human-environment interactions during Humankind history.


Assuntos
Aclimatação/genética , Adaptação Fisiológica/genética , Densidade Óssea/genética , Temperatura Baixa , Ecologia , Interação Gene-Ambiente , Genômica , Tecido Adiposo Marrom/citologia , Tecido Adiposo Marrom/fisiologia , Restos Mortais , Diferenciação Celular/genética , Chile , Expressão Gênica/genética , Variação Genética , Proteínas de Homeodomínio/genética , Humanos , Regulação para Cima/genética
16.
Front Nutr ; 8: 771047, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34957183

RESUMO

Morbid obese people are more likely to contract SARS-CoV-2 infection and its most severe complications, as need for mechanical ventilation. Ketogenic Diet (KD) is able to induce a fast weight loss preserving lean mass and is particularly interesting as a preventive measure in obese patients. Moreover, KD has anti-inflammatory and immune-modulating properties, which may help in preventing the cytokine storm in infected patients. Respiratory failure is actually considered a contraindication for VLCKD, a very-low calorie form of KD, but in the literature there are some data reporting beneficial effects on respiratory parameters from ketogenic and low-carbohydrate high-fat diets. KD may be helpful in reducing ventilatory requirements in respiratory patients, so it should be considered in specifically addressed clinical trials as an adjuvant therapy for obese patients infected with SARS-CoV-2.

17.
Healthcare (Basel) ; 9(11)2021 Nov 02.
Artigo em Inglês | MEDLINE | ID: mdl-34828540

RESUMO

We report the results of a study on the cumulative incidence of SARS-CoV-2 infections in about 6000 workers of the University Hospital of Modena, Northern Italy, in the period March 2020-January 2021, and the relations with some individual and occupational factors. Overall, in healthcare workers (HCW) the cumulative incidence of COVID-19 during the period was 13.8%. Results confirm the role of overweight and obesity as significant risk factors for SARS-CoV-2 infection. Chronic respiratory diseases, including asthma, also proved to be significantly associated with the infection rate. Considering occupational factors, the COVID-19 risk was about threefold (OR: 2.7; 95% CI 1.7-4.5) greater in nurses and nurse aides than in non-HCW, and about double (OR: 1.9; 95% CI 1.2-3.2) in physicians. Interestingly, an association was also observed between infection risk and nightshifts at work (OR: 1.8; 95% CI 1.4-2.3), significantly related to the total number of shifts in the whole eleven-month period. Even if the vaccination campaign has now greatly modified the scenario of SARS-CoV-2 infections among HCW, the results of this study can be useful for further development of health and policy strategies to mitigate the occupational risk related to the new variants of coronavirus, and therefore the evolution of the pandemic.

18.
Health Equity ; 5(1): 408-413, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34235365

RESUMO

Purpose: Gynecologic and obstetric health and intimate partner violence are particularly influenced by social determinants of health, such as poverty, low education, and poor nutritional status, and by ethnic and racial factors. In this study, we evaluated health and social inequalities of women living in disadvantaged neighborhoods in the city of Rome, Italy. Methods: The study included 128 women living in socioeconomically disadvantaged neighborhoods. For each woman, a medical record was compiled and a gynecologic examination with screening for cervical cancer was performed. Family network, risk factors for gender-based violence, and psychological abuse were also evaluated. Results: The largest part of the sample, although had adequate schooling, was unemployed or had a low-status job; this was at the basis of intimate partner violence in about one-third of our sample. Nearly 35% of our sample was composed of pregnant women; about half of them were not assisted by the public health system for routine obstetric examinations. Common findings at gynecologic examination for nonpregnant women were infections (n=18, 19.9%), pregnancy planning (n=13, 13.7%), menopause management (n=12, 12.6%), ovarian fibromas (n=6, 6.3%), and post-partum assistance (n=3, 3.2%). Screening for cervical cancer was executed in 62 women; 9 (14.5%) had low- or high-grade squamous intraepithelial lesion or cervical carcinoma. Conclusions: Health and social inequalities are frequent in women living in disadvantaged conditions, with serious consequences for health and quality of life of women and of their children. Prevention and treatment, especially for the most vulnerable subjects, should be a priority for the public health system.

19.
Nutrients ; 13(3)2021 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-33804603

RESUMO

Severe obesity is associated with an increased risk of admission to intensive care units and need for invasive mechanical ventilation in patients with COVID-19. The association of obesity and COVID-19 prognosis may be related to many different factors, such as chronic systemic inflammation, the predisposition to severe respiratory conditions and viral infections. The ketogenic diet is an approach that can be extremely effective in reducing body weight and visceral fat in the short term, preserving the lean mass and reducing systemic inflammation. Therefore, it is a precious preventive measure for severely obese people and may be considered as an adjuvant therapy for patients with respiratory compromise.


Assuntos
COVID-19/dietoterapia , Dieta Cetogênica/métodos , COVID-19/etiologia , COVID-19/prevenção & controle , Humanos , Inflamação/prevenção & controle , Obesidade/complicações , Sistema Respiratório/fisiopatologia , Sistema Respiratório/virologia
20.
Eat Weight Disord ; 26(3): 771-778, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32451949

RESUMO

INTRODUCTION: The prevalence of obesity is soaring all over the world, and Italy is reaching the same pace. Similar to other countries, the Italian healthcare system counts on a three-tier model for obesity care, and each region has freedom in the implementation of guidelines. No national record is currently available to monitor the actual situation throughout the country. PURPOSE: To provide a report of the current status on the availability of specialized public obesity care services in Italy. METHODS: Regional prevalence of obesity was extrapolated from publicly available data. Data on facilities for the management of obesity were retrieved from records provided by national scientific societies. Whenever possible, data was verified through online research and direct contact. RESULTS: We report a north-south and east-west gradient regarding the presence of obesity focused facilities, with an inverse correlation with the regional prevalence of obesity (R = 0.25, p = 0.03). Medical-oriented centers appear homogeneous in the multidisciplinary approach, the presence of a bariatric surgery division, the availability of support materials and groups, with no major difference on follow-up frequency. Surgery-oriented centers have a more capillary territorial distribution than the medically oriented, but not enough data was retrieved to provide a thorough description of their characteristics. CONCLUSION: Obtaining a clear picture of the situation and providing consistent care across the country is a challenging task due to the decentralized organization of regions. We provide a first sketch, reporting that the model is applied unevenly, and we suggest feasible actions to improve the situation in our country and elsewhere. LEVEL OF EVIDENCE: Level V, narrative review.


Assuntos
Atenção à Saúde , Obesidade , Humanos , Itália/epidemiologia , Obesidade/epidemiologia , Obesidade/terapia , Atenção Terciária à Saúde
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