Optimal Body Weights for Adults with Severe Motor and Intellectual Disabilities.

Determining the optimal body weight for individuals with severe motor and intellectual disabilities (SMID) lacks a standardized approach. In this study, we aimed to develop a formula to estimate the ideal body weight for each SMID patient, considering factors such as reduced muscle and bone mass. We analyzed data from 111 SMID patients (56 male, 55 female; age range 20 to 73 y) who underwent blood tests measuring creatinine (Cr) and cystatin C (cysC) for clinical reasons between Feb. 2018 and Feb. 2023. To create the optimal body weight formula, we utilized three variables: height, estimated glomerular filtration (eGFR)-Cr, and eGFR-cysC. The validity of the formula was assessed by comparing the measured triceps subcutaneous fat thickness (TSF) to the reference TSF (%TSF), evaluating how accurately it reflects the appropriate physique. The derived optimal body weight formula is as follows: Optimal body weight=(height)2×(18.5-25.0)×{1-0.41×(1-eGFR-cysC/eGFR-Cr)}×0.93. Our formula demonstrated validity when using %TSF as an indicator. Establishing a method to determine optimal body weight in SMID patients, considering their low muscle and bone mass, is crucial for accurate nutritional assessment and subsequent nutritional management.

The effect of percentage of ideal body weight on outcomes in ileo-anal pull through for ulcerative colitis.

PURPOSE: Ileo-anal pull through (IAPT) is a commonly performed operation for the surgical management of ulcerative colitis. The effect of body weight on outcomes for patients undergoing this operation has not been extensively studied. METHODS: This was a prospective cohort study at a single tertiary care inflammatory bowel disease (IBD) center. A total of 457 patients who were operated on at the Mount Sinai Medical Center between 1983 and 2015 were included. Demographic characteristics, the patients' body weight at the time of IAPT, and postoperative outcome data were collected. RESULTS: For each patient, body weight was calculated as a percentage of the ideal body weight (IBW) for that patient's height. The mean percentage of ideal body weight was 93.9% with a standard deviation of 20%. The range for the population was 53.1 to 175%. Four hundred forty (96%) of the patients had a weight within two standard deviations of the mean, indicating a normal distribution. Seventy-nine patients developed a Clavien-Dindo class III complication necessitating a procedural treatment. The most common of these was a stricture at the anastomotic site (n = 54). Our study identified an association between a percentage of ideal body weight in the lowest quartile of our population and development of an anastomotic stricture. This association was statistically significant on multivariate analysis. CONCLUSION: Low body weight at the time of ileo-anal pull through for treatment of UC may be a risk factor for development of anastomotic stricture requiring dilation.

MORPHOMETRIC CHARACTERISTICS OF PLACENTA IN WOMEN WITH PREECLAMPSIA AND OBESITY COMPARED TO WOMEN WITH NORMAL BODY WEIGHT.

OBJECTIVE: The aim: to investigate the morphometric characteristics of placentas in women with comorbidity of preeclampsia and obesity compared to women with physiological body weight, and to assess the efficacy of the prophylactic therapy course developed to prevent the occurrence of preeclampsia in pregnant women with obesity. PATIENTS AND METHODS: Materials and methods: 25 biopsy samples of placental tissue were taken from women between 37 and 40 weeks of gestation with a physiological body weight and with class II obesity. The women were divided into five groups of five women in each: the 1st group included women with physiological body weight without obstetric and somatic pathology; the 2nd group involved women with physiological body weight, whose pregnancy was complicated with preeclampsia; the 3rd group was made up of women with class II obesity whose pregnancy was complicated with preeclampsia; the 4th group consisted of women with class II obesity, who received the special prophylactic therapy course, and the 5th group included women with class II obesity, who did not receive the prophylactic therapy course. RESULTS: Results: The analysis of morphometric parameters of placenta samples taken from women with preeclampsia and obesity demonstrates a number of com-pensatory and adaptive changes in placenta under hypoxic conditions, and the most important of them include a significant decrease in the number and the mean diameter of the terminal villi, the reduction of volume of villious tree, an increase in the diameter of the capillaries of terminal villi. The morphometric parameters and histological structure in placenta samples from women with obesity, who received the special the prophylactic therapy course, as well as in placenta samples of the control group were similar to the gestational normative values. CONCLUSION: Conclusions: The morphometric investigation of placenta samples taken from women with comorbidity of preeclampsia and obesity has shown a significant decrease in the mean diameter of the terminal villi and an increase in the diameter of the capillaries of these terminal villi when compared with a group of women with preeclampsia and physiological body weight. The study has also demonstrated the distortion of the percentage ratio of the volume of the intervil¬lous space and the ratio of medium-calibre villi. The combination of these changes indicates a lack of adaptive capabilities in the placenta during preeclampsia under increasing hypoxic condition.

Grupo multifamiliar em transtornos alimentares durante a primeira onda da pandemia de covid-19: transição para a modalidade online / Multifamily group on eating disorders during the first wave of the covid-19 pandemic: transitioning to the online modality / Grupo multifamiliar de trastornos alimentarios durante la primera ola de la pandemia de la covid-19: transición a la modalidad en línea

As restrições impostas pela pandemia de covid-19 levaram os serviços de saúde a reorganizarem seu funcionamento, ajustando-se à modalidade remota. A transição repentina e sem o devido preparo técnico impôs desafios adicionais para usuários e profissionais. Para aprimorar as estratégias assistenciais, torna-se imprescindível dar voz aos usuários dos serviços, para que narrem suas experiências e possam manifestar suas facilidades e dificuldades com essa passagem. Este estudo tem como objetivo investigar como os principais cuidadores familiares de pessoas com transtornos alimentares vivenciaram a transição do grupo de apoio para o formato remoto e identificar vantagens e desvantagens percebidas nesse modelo. Estudo clínico-qualitativo, exploratório, realizado em um serviço de atendimento especializado de um hospital terciário. O cenário investigado foi o grupo de apoio psicológico aberto a familiares que, desde o início da pandemia de covid-19, passou a ser oferecido na modalidade online. Participaram do estudo cinco mães e três pais presentes em 13 sessões grupais consecutivas. Entrevistas individuais foram aplicadas com a Técnica do Incidente Crítico logo após o término de cada encontro grupal, totalizando 26 entrevistas audiogravadas, transcritas e submetidas à análise temática. A transição para o online foi vivenciada pelos participantes como um recurso válido para permitir que o grupo funcionasse em tempos de grave crise sanitária. Como vantagens, foram mencionadas: a continuidade do cuidado, maior acessibilidade e facilidade em relação à logística da participação. Como limitações do formato online, foram destacadas: nem todos os familiares contam com conexão de internet de qualidade e possível dificuldade para manusear a tecnologia digital. Apesar dos desafios impostos pela súbita mudança para a modalidade online, na perspectiva dos usuários do serviço os esforços de adaptação foram bem-sucedidos, possibilitando a continuidade do cuidado à saúde mental.(AU)

The constraints imposed by the COVID-19 pandemic led health services to reorganize their operation, adjusting to the online modality. The sudden and unprepared technical transition has imposed additional challenges for both users and professionals. To improve care strategies, it is essential to give voice to services users, so that they can narrate their experiences and express their facilities and difficulties with this transition. This study aims to investigate how main family caregivers of people with eating disorders experienced the transition of the support group to the remote modality and to identify perceived advantages and disadvantages in this model. This is a clinical-qualitative, exploratory study carried out in a specialized care service of a tertiary hospital. The investigated setting was the psychological support group open to family members, which since the beginning of the COVID-19 pandemic has been offered online. Five mothers and three fathers who attended 13 consecutive group sessions participated in the study. Individual interviews were carried out with the Critical Incident Technique shortly after the end of each group meeting with all members, totaling 26 audio-recorded interviews. Data were subjected to thematic analysis. Transition was experienced as a valid resource to maintain the group active in times of a severe health crisis. As advantages of the remote modality were mentioned: continuity of care, greater accessibility, and ease in relation to the logistics of participation. As limitations of the online format were highlighted: not everyone has a good-quality connection to the internet, and difficulty in handling the digital technology. Despite the challenges imposed by the sudden shift to the online modality, from the service users' perspective the adaptation efforts were successful, enabling continuity of mental health care.(AU)

Las limitaciones que impuso la pandemia de la COVID-19 llevaron a los servicios sanitarios a reorganizar su funcionamiento adaptándose a la modalidad remota. El súbito cambio y sin la preparación técnica adecuada implicó retos adicionales a los usuarios y profesionales. Para mejorar las estrategias de atención es fundamental dar voz a los usuarios de los servicios, para que puedan narrar sus experiencias y expresar sus facilidades y dificultades con esta transición. Este estudio pretende investigar cómo han vivido los cuidadores de personas con trastornos alimentarios la transición del grupo de apoyo presencial al formato remoto e identificar las ventajas y desventajas percibidas en este modelo. Se trata de un estudio clínicocualitativo, exploratorio. El escenario investigado fue el grupo de apoyo psicológico abierto a los familiares en la modalidad en línea. Cinco madres y tres padres participaron en 13 sesiones de grupo consecutivas. Se realizaron entrevistas individuales con la técnica de incidentes críticos inmediatamente después de cada reunión del grupo, con un total de 26 entrevistas grabadas en audio, transcritas y sometidas a análisis temático. La transición a la red fue experimentada como un recurso válido para permitir que el grupo funcione en tiempos de crisis sanitaria grave. Las ventajas de la modalidad remota fueron conexión segura en tiempos de confinamiento físico, continuidad, mayor accesibilidad y facilidad en relación con la logística de la participación. Las limitaciones del formato en línea fueron la falta de una conexión de calidad a Internet y la posible dificultad de manejo de la tecnología digital. A pesar de las dificultades impuestas por el cambio repentino a la modalidad en línea, desde la perspectiva de los usuarios del servicio los esfuerzos de adaptación fueron un éxito, lo que permitió seguir con la atención de salud mental.(AU)

Comparison of Dose Adjustment Strategies for Obesity in High-dose Cyclophosphamide Among Adult Hematopoietic Cell Transplantation Recipients: Pharmacokinetic Analysis.

Cyclophosphamide (CY) is an alkylating agent widely used in the field of oncology and hematopoietic cell transplantation (HCT). It is recommended to use an adjusted body weight with an adjustment factor of 0.25 (ABW25) for dosing of CY in obese patients undergoing HCT. However, evidence based on the pharmacokinetics (PK) of CY to support this recommendation is lacking. We aimed to identify a dosing strategy of CY that achieves equivalent exposures among obese and nonobese patients. The present study is a secondary analysis of a previously conducted observational PK study of phosphoramide mustard (PM), the final cytotoxic metabolite of CY. Data were collected from 85 adults with hematologic malignancy who received a single infusion of CY 50 mg/kg, fludarabine, ± anti-thymocyte globulin, and a single fraction of total body irradiation as HCT conditioning therapy. A previously developed population PK model in these patients was used for simulations. Using individualized PK parameters from that analysis, simulations were performed to assess cumulative exposures of PM (i.e., area-under-the-curve [AUC]) resulting from 8 different dosing strategies according to various measures of body size: (1) "mg/kg" by total body weight (TBW); (2) "mg/kg" by ideal body weight (IBW); (3) "mg/kg" by fat free mass; (4) "mg/m2" by body surface area (BSA); (5) "mg/kg" by TBW combined with ABW25 (TBW-ABW25); (6) "mg/kg" by IBW combined with ABW25 (IBW-ABW25); (7) "mg/kg" by TBW combined with ABW by adjustment factor of 0.50 (TBW-ABW50); and (8) "mg" by fixed-dose. We defined equivalent exposure as the effect of obesity on PM AUC within ±20% from the PM AUC in the nonobese group, where obesity is defined based on TBW/IBW ratio (i.e., nonobese, <1.2; mildly obese, 1.2-1.5; and moderately/severely obese, >1.5). Primary and secondary outcomes were PM AUC0-8hours and PM AUC0-infinity, respectively. In the 85 patients, with the median age of 63 years (range 21-75), 46% were classified as mildly and 25% were moderately/severely obese based on the TBW/IBW ratio. Negative correlations (i.e., higher the extent of obesity, lower the PM AUC) were shown when dosing simulations were based on IBW, TBW-ABW25, and fixed dosing (P < .05). Positive correlations were shown when dosing was simulated by TBW (P < .05). None of the 8 dosing strategies attained equivalent PM AUC0-8hours between patients with versus without obesity, whereas dosing by BSA and TBW-ABW50 attained equivalent PM AUC0-infinity (P < .05). Our study predicted that the recommended ABW25 dose adjustment may result in lower exposure of CY therapy in obese patients than in nonobese. A CY dosing strategy that would result in similar PM concentrations between obese and nonobese was not identified for early exposure (i.e., PM AUC0-8hours). The data suggest though that CY dosing based on "mg/m2" by BSA or "mg/kg" by TBW-ABW50 would result in similar total exposure (i.e., PM AUC0-infinity) and may minimize exposure differences in obese and nonobese patients.

Ideal Body Weight Is Useful For Predicting Neutrophil Engraftment and Platelet Recovery for Overweight and Obese Recipients in Single-Unit Cord Blood Transplantation.

Because cord blood (CB) units are usually selected based on the cell dose per kilogram, overweight (body mass index [BMI] ≥25 kg/m2to < 30 kg/m2) and obese (30 kg/m2 ≤ BMI) recipients tend to have difficulty in getting appropriate CB units. In general, actual body weight (ABW) is used for CB unit selection. However, ideal body weight (IBW) has been reported to be more closely correlated with successful engraftment after autologous, allogeneic bone marrow, and peripheral blood stem cell transplantation than ABW. We conducted this analysis to clarify the threshold of CD34+ cell doses based on ideal body weight (CD34IBW) and to compare the outcomes among the groups stratified by the threshold according to actual body weight (CD34ABW) and CD34IBW for overweight and obese recipients in cord blood transplantation (CBT). We retrospectively analyzed 650 overweight and obese recipients who received single-unit CBT. To focus on the recipients who received a low CD34+ cell dose/kg, those who received 1.5×105 CD34+ cells/ABW or more were excluded. Using a cut-off of 0.8×105 CD34+ cells/kg, we compared the outcomes in 3 groups with low CD34ABW and low CD34IBW (CD34Low/Low), low CD34ABW but high CD34IBW (CD34Low/High), and high CD34ABW and high CD34IBW (CD34High/High). Hematopoietic recoveries were significantly delayed in the CD34Low/Low group compared with those in the CD34Low/High group (hazard ratio [HR] 0.67 for neutrophil, P < .001; HR 0.72 for platelet, P = .014), whereas those were comparable in the CD34Low/High and CD34High/High groups (HR 1.22 for neutrophil, P = .16; HR 1.29 for platelet, P = .088). Moreover, the CD34Low/High group demonstrated longer overall survival than the CD34Low/Low group (HR 1.48, P = .011) and comparable survival to the CD34High/High group (HR 0.93, P = .68). This finding may address the lack of availability of CB units for some overweight and obese recipients for whom suitable donors are unavailable. Further investigations are warranted to evaluate the appropriateness of ABW and IBW.

Association between Healthy Lifestyle (Diet Quality, Physical Activity, Normal Body Weight) and Periodontal Diseases in Korean Adults.

This study aimed to investigate the association between healthy lifestyle (HLS; i.e., diet quality, physical activity, normal weight) and periodontal diseases in Korean adults. Studying this association may help inform future intervention programs aimed at preventing the development of periodontal diseases. Raw data of the Korea National Health and Nutrition Examination Survey (KNHANES) VII (2016-2018) were used. Data from 12,689 adults aged 19 years and over who had a periodontal examination were analyzed. The associations between HLS and periodontal diseases were analyzed using multivariate logistic regression after adjusting for demographic and health factors as covariates. We found that each of the HLS (diet quality, physical activity, normal body weight) practices was significantly associated with periodontal diseases (OR: 1.32, 95% CI: 1.13-1.55; OR: 1.16, 95% CI: 1.04-1.30; OR: 1.26, 95% CI: 1.14-1.40, respectively). In particular, having poor HLS practices was identified as a risk factor for periodontal diseases (OR: 1.54, 95% CI: 1.10-2.15). HLS was associated with periodontal diseases. Thus, in addition to improving oral hygiene-the primary focus in the past-improving HLS should be emphasized for patients with periodontal diseases.

Índice de masa corporal, peso ideal y porcentaje de grasacorporal en personas de diferentes grupos etarios / Body mass index, ideal weight and percentage of body fat inpeople of different age groups

El objetivo es comparar el IMC con el porcentaje de grasa corporal y el peso ideal, para complementar el IMC en el diagnóstico de obesidad, de un grupo de adultos. Métodos: estudio descriptivo, transversal, prospectivo y correlacional, en una muestra de 797 adultos con edad entre 17 y 96 años, atendidos en diferentes centros clínicos de Caracas, entre 2015 y 2018. Las variables son: edad, peso, talla y se calcularon el IMC, porcentaje de grasa corporal (PGC) y peso ideal (PI). Se clasificaron por sexo, grupo etáreo y según el IMC en normalidad y obesidad. Se utilizaron dos fórmulas para el PGC: Deurenberg y Regresión; y tres fórmulas para PI: Lorenz, Ramírez et al y Broca. Se obtuvieron medidas descriptivas, asociación, correlación, comparación de promedios y prueba de normalidad, mediante el soware Excel, Epidat.2. Resultados: Promedios de IMC y PGC aumentan hasta los 40 años y disminuye hasta los 79 años, las variables Talla ­ PI Broca, e IMC- PGCR correlacionan bien (r>0,75). Los promedios del IMC, PGCD, PGCR, PI Broca y PI Lorenz, según sexo, son significativos (p<0,000); para el IMC, en Normalidad y Obesidad, los promedios de peso, IMC, PGCD y PGCR son mayores en grupo de Obesidad, y significativos (p<0,000). La prueba de normalidad Shapiro-Francia comprobó que la distribución del IMC, PGCD, PGCR y PI Lorenz, provienen de una población distribuida normalmente (p< 0,000). Conclusiones: el IMC aun cuando es utilizado más frecuentemente para diagnosticar obesidad, clasifica con normalidad, a quienes tienen un alto porcentaje de grasa corporal(AU)

The objective is to compare BMI with the percentage of body fat and ideal weight, to supplement BMI in the diagnosis of obesity, from a group of adults. METHODS: descriptive, cross-cutting, prospective and correlational study, in a sample of 797 adults between 17 and 96 years old, attended in different clinical centers of Caracas, between 2015 and 2018. the variables are: age, weight, size and BMI was calculated, percentage of body fat (BFP) and ideal weight (IW). they were classified by sex, age group and BMI in normality and obesity. Two formulas were used for BFP: Deurenberg and Regression; and three formulas for IW: Lorenz, Ramirez-Lopez et al and Broca. Descriptive measures, association, correlation, average comparison and normality test were obtained, using Excel software, Epidat.2. RESULT: BMI and BFP averages increase to 40 years and decrease to age 79, the variables Size ­ IW Broca, and BMI- BFPR correlate well (r>0.75). e average BMI, BFPD, BFPR, IW Broca and IW Lorenz, depending on gender, are significant (p<0.000); for BMI, in Normality and Obesity, the weight averages, BMI, BFPD and BFPR are higher in the Obesity group, and significant (p<0,000). the Shapiro-France normality test found that the distribution of BMI, BFPD, BFPR and IW Lorenz, comes from a normally distributed population (p< 0.000). CONCLUSIONS: BMI even though it is most commonly used to diagnose obesity, it classifies normally, those with a high percentage of body fat(AU)

Coronary microvascular function and visceral adiposity in patients with normal body weight and type 2 diabetes.

OBJECTIVE: This study sought to assess whether diabetes affects coronary microvascular function in individuals with normal body weight. METHODS: Seventy-five participants (30 patients with type 2 diabetes [T2D] who were overweight [O-T2D], 15 patients with T2D who were lean [LnT2D], 15 healthy volunteers who were lean [LnHV], and 15 healthy volunteers who were overweight [O-HV]) without established cardiovascular disease were recruited. Participants underwent magnetic resonance imaging for assessment of subcutaneous, epicardial, and visceral adipose tissue areas, adenosine stress myocardial blood flow (MBF), and cardiac structure and function. RESULTS: Stress MBF was reduced only in the O-T2D group (mean [SD], LnHV = 2.07 [0.47] mL/g/min, O-HV = 2.08 [0.42] mL/g/min, LnT2D = 2.16 [0.36] mL/g/min, O-T2D = 1.60 [0.28] mL/g/min; p ≤ 0.0001). Accumulation of visceral fat was evident in the LnT2D group at similar levels to the O-HV group (LnHV = 127 [53] cm2 , O-HV = 181 [60] cm2 , LnT2D = 182 [99] cm2 , O-T2D = 288 [72] cm2 ; p < 0.0001). Only the O-T2D group showed reductions in left ventricular ejection fraction (LnHV = 63% [4%], O-HV = 63% [4%], LnT2D = 60% [5%], O-T2D = 58% [6%]; p = 0.0008) and global longitudinal strain (LnHV = -15.1% [3.1%], O-HV= -15.2% [3.7%], LnT2D = -13.4% [2.7%], O-T2D = -11.1% [2.8%]; p = 0.002) compared with both control groups. CONCLUSIONS: Patients with T2D and normal body weight do not show alterations in global stress MBF, but they do show significant increases in visceral adiposity. Patients with T2D who were overweight and had no prior cardiovascular disease showed an increase in visceral adiposity and significant reductions in stress MBF.

Metabolic phenotypes and risk of colorectal cancer: a systematic review and meta-analysis of cohort studies.

BACKGROUND: The association of obesity with colorectal cancer (CRC) may vary depending on metabolic status. OBJECTIVE: This meta-analysis aimed to investigate the combined impacts of obesity and metabolic status on CRC risk. METHODS: The Scopus, PubMed, and web of sciences databases were systematically searched up to Jun 2021 to find all eligible publications examining CRC risk in individuals with metabolically unhealthy normal-weight (MUHNW), metabolically healthy obesity (MHO), and metabolically unhealthy obesity (MUHO) phenotypes. RESULTS: A total of 7 cohort studies with a total of 759,066 participants were included in this meta-analysis. Compared with healthy normal-weight people, MUHNW, MHO, and MUHO individuals indicated an increased risk for CRC with a pooled odds ratio of 1.19 (95% CI = 1.09-1.31) in MUHNW, 1.14 (95% CI = 1.06-1.22) in MHO, and 1.24 (95% CI = 1.19-1.29) in MUHO subjects. When analyses were stratified based on gender, associations remained significant for males. However, the elevated risk of CRC associated with MHO and MUHO was not significant in female participants. CONCLUSIONS: The individuals with metabolic abnormality, although at a normal weight, have an increased risk for CRC. Moreover, obesity is associated with CRC irrespective of metabolic status.

Effects of Metformin-Single Therapy on the Level of Inflammatory Markers in Serum of Non-Obese T2DM Patients with NAFLD.

BACKGROUND AND OBJECTIVES: Non-alcoholic fatty liver disease (NAFLD) is associated with inflammation and subsequent increase in cardiovascular risk. Because of its widespread presence and distribution, invasive diagnostic procedures (i.e., liver biopsy) are reserved for a limited number of subjects. With liver ultrasound, Fatty liver index (FLI) and fibrosis-4 (FIB-4) scores non-invasively assess liver steatosis and fibrosis. We aimed to evaluate the changes in inflammatory markers and FLI/FIB-4 scores in non-obese metformin-treated type 2 diabetes patients (T2DM) with NAFLD. METHODS: All subjects underwent abdominal ultrasound aiming for NAFLD stratification (grade 1 to 3 according to its severity). Metabolic parameters (morning glycaemia, HbA1C, lipids, liver function tests), serum inflammatory markers (C-reactive protein, ferritin, and nitric oxide) and FLI/- FIB-4 were calculated. RESULTS: FLI score and ultrasound NAFLD grades were found to correlate (p<0.05). We observed a significant correlation between the levels of ferritin and C-reactive protein (CRP) (p<0.05), and the FLI (p<0.05). Body weight (BW) (p<0.05), waist circumference (WC) (p<0.05), the levels of HbA1c (p<0.05), transferrin (p<0.05), insulin (p<0.05), and FLI score (p<0.05) significantly differed between groups as defined by the severity of NAFLD. CONCLUSION: This pilot study suggests that the serum inflammatory markers at the average normal values point to the sufficiency of metformin-single therapy in inflammation control in non-obese T2DM patients with NAFLD.

MALDI-TOF MS Characterisation of the Serum Proteomic Profile in Insulin-Resistant Normal-Weight Individuals.

Insulin resistance (IR) is one of the most common metabolic disorders worldwide and is involved in the development of diseases, such as diabetes and cardiovascular diseases, affecting civilisations. The possibility of understanding the molecular mechanism and searching for new biomarkers useful in assessing IR can be achieved through modern research techniques such as proteomics. This study assessed the protein-peptide profile among normal-weight patients with IR to understand the mechanisms and to define new risk biomarkers. The research involved 21 IR and 43 healthy, normal-weight individuals, aged 19-65. Serum proteomic patterns were obtained using matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry. The proposed methodology identified six proteins differentiating normal weight IR and insulin sensitive individuals. They were fibrinogen alpha chain, serum albumin, kininogen-1, complement C3, serotransferrin, and Ig gamma-1 chain, which could potentially be related to inflammation. However, further investigation is required to confirm their correlation with IR.

Metabolically Abnormal But Normal-Weight Individuals Had a Higher Risk of Type 2 Diabetes Mellitus in a Cohort Study of a Chinese Population.

Aims: Obesity is a heterogeneous disease in terms of body mass index (BMI) and metabolic status. The purpose of this study was to investigate the risk of type 2 diabetes mellitus (T2DM) in subjects with metabolically abnormal but normal weight (MANW) in China. Materials and Methods: A prospective cohort with a total of 17,238 participants of the Zhejiang metabolic syndrome cohort was recruited. According to the standard of the Working Group on Obesity in China, general obesity is defined. Metabolic abnormality was defined as two or more abnormal components (elevated triglycerides (TG), low high-density lipoprotein cholesterol (HDL-C), elevated systolic blood pressure (SBP) or diastolic blood pressure (DBP) or use of antihypertensive therapy, and elevated fasting plasma glucose or antidiabetic treatment). The hazard ratio (HR) and its 95% CI were calculated using a multiple regression model, adjusted for the potential confounding factors. Results: Compared with metabolically normal and normal weight (MNNW) subjects, the metabolically abnormal and obesity/overweight (MAO) subjects had the highest risk of T2DM disease, with an HR of 4.67 (95% CI: 3.23-6.76), followed by MANW subjects (HR = 2.61, 95% CI: 1.74-3.92) and metabolically normal but obesity/overweight (MNO) subjects (HR = 2.09, 95% CI: 1.29-3.38) after adjusting for age, sex, smoking, drinking, physical activity, and family history of diabetes. Compared with that in the MNNW subjects, the HR in MANW subjects was significantly higher than that in MNO subjects. In normal-weight subjects, the HR of T2DM was significantly positively correlated with the number of components with metabolic abnormalities. Conclusions: MANW subjects had a higher risk of T2DM. MANW subjects should be given more attention in the prevention and control of common chronic diseases.

Gastrointestinal Hormones in Healthy Adults: Reliability of Repeated Assessments and Interrelations with Eating Habits and Physical Activity.

Background: Gastrointestinal hormones (GIHs) are crucial for the regulation of a variety of physiological functions and have been linked to hunger, satiety, and appetite control. Thus, they might constitute meaningful biomarkers in longitudinal and interventional studies on eating behavior and body weight control. However, little is known about the physiological levels of GIHs, their intra-individual stability over time, and their interaction with other metabolic and lifestyle-related parameters. Therefore, the aim of this pilot study is to investigate the intra-individual stability of GIHs in normal-weight adults over time. Methods: Plasma concentrations of ghrelin, leptin, GLP-1 (glucagon-like-peptide), and PP (pancreatic polypeptide) were assessed by enzyme-linked immunosorbent assay (ELISA) in 17 normal-weight, healthy adults in a longitudinal design at baseline and at follow-up six months later. The reliability of the measurements was estimated using intra-class correlation (ICC). In a second step, we considered the stability of GIH levels after controlling for changes in blood glucose and hemoglobin A1 (HbA1c) as well as self-reported physical activity and dietary habits. Results: We found excellent reliability for ghrelin, good reliability for GLP1 and PP, and moderate reliability for leptin. After considering glucose, HbA1c, physical activity, and dietary habits as co-variates, the reliability of ghrelin, GLP1, and PP did not change significantly; the reliability of leptin changed to poor reliability. Conclusions: The GIHs ghrelin, GLP1, and PP demonstrated good to excellent test-retest reliability in healthy individuals, a finding that was not modified after adjusting for glucose control, physical activity, or dietary habits. Leptin showed only moderate to poor reliability, which might be linked to weight fluctuations, albeit small, between baseline and follow-up assessment in our study sample. Together, these findings support that ghrelin, GLP1, and PP might be further examined as biomarkers in studies on weight control, with GLP1 and PP serving as anorexic markers and ghrelin as an orexigenic marker. Additional reliability studies in obese individuals are necessary to verify or refute our findings for this cohort.

Equations for calculating ideal body weight in patients on mechanical ventilation in adult intensive care units in Latin America: exploratory review / Ecuaciones para calcular el peso ideal en pacientes con ventilación mecánica en unidades de cuidado intensivo adulto en Latinoamérica: revisión exploratoria

Abstract Introduction Ideal body weight calculation is used in critical medicine for drug dosing and setting ventilation parameters. However, the suggested and used equations were designed on the basis of anthropometric variables that do not represent the Latin American population. Objective To map and present the current evidence on the equations used to calculate ideal weight in patients on mechanical ventilation in intensive care units in Latin America. Material and Methods Exploratory review using the Joanna Briggs Institute method conceived by Arskey / O'Malley. A search was performed in the BVS, LILLACS, REDALYC, Ovid, Google Scholar and Scielo databases using keywords and MeSH terms in Spanish, English, and Portuguese, with no time limitation. The results are presented in descriptive tables. Results Overall, 1126 studies were identified and 1120 were excluded; 6 studies were reviewed and 3 additional studies were identified through a manual search. The studies were published in Chile, Brazil, Mexico, Ecuador, and Peru. In 89%, the ARDS Network equation was used to calculate tidal volume. Acute respiratory distress syndrome was the most reported pathology (33%). Conclusions Adult intensive care units in Latin America use the equation suggested by the ARDS Network, which was designed in a population with different anthropometric characteristics.

Resumen Introducción El cálculo del peso ideal se utiliza en medicina crítica para dosificación de medicaciones y programación de parámetros ventilatorios; sin embargo, las ecuaciones sugeridas y usadas fueron diseñadas con variables antropométricas que no representan la población latinoamericana. Objetivo Mapear y presentar la evidencia actual de las ecuaciones utilizadas para calcular el peso ideal en pacientes con ventilación mecánica en unidades de cuidado intensivo de Latinoamérica. Material y métodos Revisión exploratoria con el método del Instituto Joanna Briggs concebido por Arskey y O'Malley. Se realizó una búsqueda en las bases de datos BVS, LILACS, Redalyc, Ovid, Google Scholar y SciELO con el uso de palabras clave y términos MeSH en idiomas español, inglés y portugués, sin límites de tiempo. Los resultados se presentan de forma descriptiva. Resultados Se identificaron 1.126 estudios, se excluyeron 1.120, se revisaron seis y se encontraron tres adicionales mediante búsqueda manual. Los estudios fueron publicados en Chile, Brasil, México, Ecuador y Perú. En el 89 % se usó la ecuación del ARDS Network para calcular volumen corriente. El síndrome de dificultad respiratoria aguda fue la patología más informada (33 %). Conclusiones En las unidades de cuidado intensivo adulto de Latinoamérica se usa la ecuación sugerida por el ARDS Network diseñada en población con características antropométricas diferentes.

Influence of pregnancy on iron and copper exchange rates in women with normal body weight and women with obesity.

The number of obese pregnant women increases annually and reaches 20-30%. The metabolism of hormones and minerals changes in the presence of a large amount of adipose tissue in the body of a pregnant woman, which leads to a number of obstetric and perinatal problems. The aim of the work is to study and compare the influence of the gestational process on the indicators of iron and copper metabolism in the blood serum of women with normal body weight and women with obesity. In the blood serum of 125 women of reproductive age, the content of hemoglobin, iron, transferrin, ferritin, copper and ceruloplasmin was determined. The influence of pregnancy on the indicators of iron and copper metabolism in the blood serum of women was revealed. Pregnancy in women with normal body weight increases the content of transferrin and ceruloplasmin. Correlation of ceruloplasmin and ferritin content with body mass index of obese pregnant women was revealed. In pregnancy with concomitant obesity, hyperferritinemia is formed with a reduced content of hemoglobin and serum iron. Knowledge of the indicators of iron and copper metabolism is necessary to optimize the observation of pregnant women, effective prevention and prediction of obstetric and perinatal complications.

Accelerated subcutaneous abdominal stem cell adipogenesis predicts insulin sensitivity in normal-weight women with polycystic ovary syndrome.

OBJECTIVE: To examine whether subcutaneous (SC) abdominal adipose stem cell differentiation into adipocytes in vitro predicts insulin sensitivity (Si) in vivo in normal-weight women with polycystic ovary syndrome (PCOS) and controls. DESIGN: Prospective cohort study. SETTING: Academic medical center. PATIENT(S): Eight normal-weight women with PCOS and 8 age- and body mass index-matched controls. INTERVENTION(S): Women underwent circulating hormone/metabolic determinations, intravenous glucose tolerance testing, total-body dual-energy x-ray absorptiometry, and SC abdominal fat biopsy. MAIN OUTCOME MEASURE(S): PPARγ and CEBPa gene expression and lipid content of adipocytes matured in vitro were compared between women with PCOS and control women, and correlated with patient characteristics, systemic Si, and adipose insulin resistance (adipose-IR). RESULT(S): Serum androgen levels, adipose-IR, and percentage of android fat were greater in women with PCOS than control women. Stem cell PPARγ and CEBPa gene expression increased maximally by day 12 without a female-type effect. In control cells, gene expression positively correlated with fasting serum insulin levels (both genes) and adipose-IR (CEBPa) and negatively correlated with Si (CEBPa). Conversely, CEBPa gene expression in PCOS cells negatively correlated with adipose-IR and serum free testosterone, whereas total lipid accumulation in these cells positively corelated with Si. CONCLUSION: In normal-weight women with PCOS, accelerated SC abdominal adipose stem cell differentiation into adipocytes in vitro favors Si in vivo, suggesting a role for hyperandrogenism in the evolution of metabolic thrift to enhance fat storage through increased cellular glucose uptake.

The Role of Underweight in Active Life Expectancy Among Older Adults in Japan.

OBJECTIVES: It is underweight, rather than overweight or obesity, that has been a pressing public health concern in Japan. This study examines the impact of being underweight on the health of older Japanese men and women, measured by active life expectancy at age 65. Following the Japanese government's guideline, underweight in this study is defined using the body mass index (BMI) value of 20. METHOD: Data came from five waves (1999-2009) of the Nihon University Japanese Longitudinal Study of Aging (NUJLSOA). We used the Interpolation of Markov Chain approach to estimate the number of years underweight (BMI < 20), normal weight (20 < BMI < 25), and overweight (25 < BMI) individuals were expected to live without difficulty in activities of daily living (ADLs) or instrumental ADLs. RESULTS: We found differences in life and health expectancies across the three weight categories. Underweight people were expected to live the shortest lives and spend the fewest years in an active state compared with normal and overweight individuals. Results remained unchanged even when accounting for educational attainment, smoking history, and a count of existing chronic conditions. DISCUSSION: Being underweight is associated with poor quality of life lived among Japanese older adults. This finding suggests the importance of maintaining proper weight and avoids nutritional risks at advanced ages.