Biomedical subjects

J J Lara

Publications and source records attributed to J J Lara.

3 recordsLinked to original sources

PubMed2005

Weight changes after vertical banded gastroplication.

AIMS: This study assessed the patterns of weight change in response to surgical treatment for obesity. METHODS: Vertical Banded Gastroplication (VBG) was performed during the period 1994-2000. Patients were required to follow a liquid diet (800 kcals)for 12 weeks before surgery. The same diet plus a multivitamin capsule (Forceval) was followed for 12 weeks postoperatively, after which normal foods were introduced. Data from 23 patients, 16 women and 7 men, aged 33-63 years (mean, SD; 42 +/- 8 yrs), with BMI from 38 to 69 kg/m2 (52.5 +/- 8.1 kg/m2) at the time of the surgery were available for analysis. Follow up was 3 to 7 years (mean 4 years). RESULTS: An initial weight loss of 44.4 +/- 24.3 kg (min 11.5, max 110.5 kg) was reached during the first two years (mean BMI decrease 15.8 kg/m2). However a regain in weight (36% of the initial weight loss = 5.6 kg/m2) up to 3 to 7 years after surgery was usual. Average annual regain was 13.6 kg (n=17), 9.45 kg (n=11) and 0.8 kg (n=8) during the 3rd, 4th and 5th year after surgery). Five participants reached a BMI below 30 but only one, BMI < 25, has maintained all the weight loss after 5years. CONCLUSIONS: Weight lossfollowing VBG ceased after twoyears with a subsequent substantial weight regain. Auxiliary therapies to counteract weight regain are necessary after VBG.

Adult↗

PubMed2004

Intentional mis-reporting of food consumption and its relationship with body mass index and psychological scores in women.

BACKGROUND: The reasons for mis-reporting food consumption warrant investigation. OBJECTIVE: To document intention to mis-report food consumption and its associations with psychological measures in women. DESIGN: A total of 184 female volunteers aged 18-65 years, comprising 50 seeking help in primary care to lose weight with a body mass index (BMI) >/=30 kg m(-2) (obese-clinical group) and 134 nurses (nonclinical groups) (BMI <25 kg m(-2), n = 52; BMI 25-29.9 kg m(-2), n = 45; BMI >/=30 kg m(-2), n = 37) were studied. A questionnaire was administered containing three psychological tests (self-esteem, psychological well-being and Stunkard's three-factor eating questionnaire) and new items to address food intake mis-reporting. RESULTS: Overall, 68% of participants declared an inclination to mis-report (64% nonclinical, 78% clinical). Inclination to under-report was 29, 33 and 51% in the three nonclinical groups; and 46% among the obese clinical patients. Among the same groups, inclination to over-report were 39, 29, 11 and 32%. After adjusting for social deprivation and BMI, women inclined to mis-report had higher hunger (P = 0.008) and disinhibition (P = 0.005) scores than those intending to report accurately. These variables were associated with current dieting, frequency of dieting, self-reported bingeing and dissatisfaction with body weight. CONCLUSIONS: These findings indicate that intentional under-reporting and over-reporting of food consumption are common in women of all BMI categories and are associated with eating behaviour. Current dieting, frequency of dieting in the past, self-reported bingeing and dissatisfaction with body weight seem to mediate this relationship.

Adolescent↗

PubMed2001

Unusually high prevalence rates of obesity in four Mexican rural communities.

OBJECTIVE: To establish the nutritional status of previously studied rural populations. DESIGN AND SUBJECTS: A total of 139 households with 245 males and 301 females from four relatively isolated Mexican rural communities were randomly selected to be surveyed in 1996. RESULTS: Underweight was not a problem in either children or adults. In children <5 y only three (4.2%) were stunted but the age- and sex-specific distributions of body mass index (BMI) in children showed 17% of boys and 19% of girls exceeded the proposed International Obesity Task Force limits for classifying the overweight. Triceps skinfold values were similar to NHANESI values for white USA children. Of the adult men 42% were overweight (BMI 25.0-29.9) and 9% obese; 40% of adult women were overweight and a further 33% obese. Adjusting BMI values with corrected total heights by relating them to measured knee height reduced the BMI of women >50 y by 2.0 units; the male data were essentially unchanged. The prevalence of abdominal obesity in women, based on waist measurements and WHO cut-off points was high with 25% of women having elevated values despite a normal BMI; 43% of the overweight women had substantial increases in waist measurements, indicative of high risk, as did 91% of obese women. The men's waist measurements were greater in relation to both BMI and body fat but the prevalence of values in excess of the suggested sex-specific WHO limits was less than half that of women. CONCLUSIONS: The high prevalence of overweight and obesity is now evident in poor and relatively isolated rural communities of Mexico. SPONSORSHIP: The Chronic Disease Office, from the Ministry of Health in Mexico partially financed this study.

Adipose Tissue↗