Associations of polymorphisms of some genes with excessive weight in a population sample of young citizens of Novosibirsk

Aim of the study was to investigate the associations of polymorphisms of some genes with overweight and some anthropometric and biochemical indicators in a population sample of the young population of Novosibirsk. Material and methods. The study was carried out on a sample of young people aged 25–35 years, residents of Novosibirsk, selected by the method of random numbers (n = 319). During the survey, a questionnaire was filled out, anthropometric measurements, blood sampling, followed by biochemical and molecular genetic studies were carried out. Results. The odds ratio (OR) to detect a carrier of the AA rs9939609 genotype of the FTO gene in the group with an increased body mass index (BMI) compared to the group with a normal BMI is 2.1 times higher (95% confidence interval (95 % CI) 1.2– 3.8; p = 0.019 in the AA vs AT+TT model). In the Kruskal – Wallis test in the general group, differences were found in carriers of different rs9939609 genotypes of the FTO gene in the thickness of the skin fold in the middle third of the right shoulder (p = 0.0008) and under the right shoulder blade (p = 0.026). In carriers of the AA genotype, these indicators were noticeably higher compared to carriers of the AT and TT genotypes. Differences in high density lipoprotein cholesterol were found in women (p = 0.032; the lowest level in the AA genotype) and low density lipoprotein cholesterol (p = 0.027; the highest value in the AA genotype). In addition, female carriers of the TT rs7903146 genotype of the TCF7L2 gene had lower diastolic blood pressure than carriers of the CT and CC genotypes (p = 0.027). The probability of detecting a male carrier of the CT or TT genotypes of the TCF7L2 gene polymorphism rs7903146 in the obese group is 0.313 (95 % CI 0.102–0.955; p = 0.036 in the CC vs CT+TT model) compared with the group with excess BMI (25 ≤ BMI < 30 kg/m2 ). The probability of detecting the allele with rs10811661 of the CDKN2AB gene in the obese group is 2.2 times higher (95 % CI 1.1–4.5; p = 0.035) compared with the group with an excess BMI. Conclusion. The association of overweight in the population sample of the young population of Novosibirsk was confirmed with rs9939609 of the FTO gene, rs7903146 of the TCF7L2 gene, rs10811661 of the CDKN2AB gene. The association of rs2237892 of the KCNQ1 gene and rs1111875 of the HHEX gene with overweight was not found. Associations of the studied SNPs with some anthropometric and biochemical indicators were found.

Evaluation of facial soft-tissue values and craniofacial morphology in obese adolescent patients with different skeletal classes

Objectives: The purpose of this study was to evaluate the facial soft tissue and craniofacial morphological structures in adolescent obese individuals with different skeletal patterns. Materials and Methods: The study was carried out on 292 adolescents examined under three groups based on their body mass indexes (BMIs) as obese, healthy, and overweight. The subjects were also categorized based on skeletal classes as Class I, Class II, and Class III. Results: The glabella, nasion, labiale inferius, labiomentale, and pogonion values of the female patients were significantly higher in obese group. In the obese and overweight groups, effective midfacial and mandibular length, anterior and posterior facial heights, and SN values of the females were higher than males. In the obese group, the mean effective midfacial and mandibular length (Co-A and Co-Gn), anterior and posterior facial heights (S-Go and N-Me), and anterior cranial base (SN) values were significantly higher than other groups. Conclusion: Soft-tissue thicknesses increase as BMI value increases. Craniofacial morphology reveals significant differences between BMI groups.

Visceral Obesity Determined by CT As a Predictor of Short-term Postoperative Complications in Ovarian Cancer

Objective: To explore the association between visceral obesity and short-term postoperative complications in patients with advanced ovarian cancer undergoing cytoreductive surgery.Methods: Medical records were reviewed for patients with ovarian cancer. Visceral fat area, subcutaneous fat area and total fat area were measured on a single slice at the level of L3/4 of a preoperative CT scan. Univariable and multivariable analyses were performed to investigate the correlation between visceral obesity and short-term complications and to analyze the risk factors for complications after surgery.Results: Of the 130 patients, 53.8% (70/130) were presented visceral obesity. Patients with visceral obesity were older than those with nonvisceral obesity (58.3 years old vs. 52.3 years old, p = 0.001). The proportion of patients with hypertension was slightly higher (37.1% vs. 11.7%, p = 0.001). The total fat area and subcutaneous fat area were higher in patients with visceral obesity (296.9 ± 72.1 vs. 173.1 ± 67.3, p < 0.001; 168.8 ± 55.5 vs. 121.6 ± 54.3, p < 0.001). Compared with patients in the nonvisceral obese group, patients in the visceral obese group were more likely to have postoperative fever (21/70 30.0% vs. 8/60 1.25%, p = 0.023), leading to a longer length of hospital stay (21 days vs. 17 days, p = 0.009). Time from surgery to adjuvant chemotherapy for patients with visceral obesity has been delayed (24 days vs. 20 days, p = 0.037). Multivariate analysis showed that visceral obesity (OR 4.770, p < 0.001) and operation time (OR 1.008, p < 0.001) were independent predictors of postoperative complications. Conclusion: Visceral obesity is an important risk factor for short-term postoperative complications in patients with advanced ovarian cancer undergoing cytoreductive surgery.

Metabolic variables of obese dogs with insulin resistance supplemented with yeast beta-glucan

Background Obesity is one of the most common nutritional disorders in dogs and cats and is related to the development metabolic comorbidities. Weight loss is the recommended treatment, but success is difficult due to the poor satiety control. Yeast beta-glucans are known as biological modifiers because of their innumerable functions reported in studies with mice and humans, but only one study with dogs was found. This study aimed to evaluate the effects of a diet supplemented with 0.1% beta-glucan on glucose, lipid homeostasis, inflammatory cytokines and satiety parameters in obese dogs. Fourteen dogs composed three experimental groups: Obese group (OG) with seven dogs with body condition score (BCS) 8 or 9; Lean group (LG) included seven non-obese dogs with a BCS of 5; and Supplemented Obese group (SOG) was the OG dogs after 90 days of consumption of the experimental diet. Results Compared to OG, SOG had lower plasma basal glycemic values (p = 0.05) and reduced serum cholesterol and triglyceride levels. TNF-α was lower in SOG than in OG (p = 0.05), and GLP-1 was increased in SOG compared to OG and LG (p = 0.02). Conclusion These results are novel and important for recognizing the possibility of using beta-glucan in obesity prevention and treatment.

Total hip arthroplasty through the direct anterior approach in morbidly obese patients

Aims There is evidence that morbidly obese patients have more intra- and postoperative complications and poorer outcomes when undergoing total hip arthroplasty (THA) with the direct anterior approach (DAA). The aim of this study was to determine the efficacy of DAA for THA, and compare the complications and outcomes of morbidly obese patients with nonobese patients. Methods Morbidly obese patients (n = 86), with BMI ≥ 40 kg/m2 who underwent DAA THA at our institution between September 2010 and December 2017, were matched to 172 patients with BMI < 30 kg/m2. Data regarding demographics, set-up and operating time, blood loss, radiological assessment, Harris Hip Score (HHS), International Hip Outcome Tool (12-items), reoperation rate, and complications at two years postoperatively were retrospectively analyzed. Results No significant differences in blood loss, intra- and postoperative complications, or implant position were observed between the two groups. Superficial wound infection rate was higher in the obese group (8.1%) compared to the nonobese group (1.2%) (p = 0.007) and relative risk of reoperation was 2.59 (95% confidence interval 0.68 to 9.91). One periprosthetic joint infection was reported in the obese group. Set-up time in the operating table and mean operating time were higher in morbidly obese patients. Functional outcomes and patient-related outcome measurements were superior in the obese group (mean increase of HHS was 52.19 (SD 5.95) vs 45.1 (SD 4.42); p < 0.001), and mean increase of International Hip Outcome Tool (12-items) was 56.8 (SD 8.88) versus 55.2 (SD 5.85); p = 0.041). Conclusion Our results suggest that THA in morbidly obese patients can be safely and effectively performed via the DAA by experienced surgeons. Cite this article: Bone Jt Open 2022;3(1):4–11.

Effects of Sarcopenia and Sarcopenic Obesity on Joint Pain and Degenerative Osteoarthritis in Postmenopausal Women

This study aimed to identify the prevalence of sarcopenia, obesity, and sarcopenic obesity and examine their association with radiographic knee osteoarthritis (OA) and knee pain in Korean menopausal women. This cross-sectional study utilized the data from Korean National Health and Nutrition Examination Surveys 2009–2011. The participants were categorized based on body composition. The prevalence of radiographic knee OA and knee pain was calculated. The effect of hormone therapy (HT) was also evaluated. The prevalence of radiographic knee OA, knee pain, and both were all highest in the sarcopenic obese group and lowest in the non-sarcopenic non-obese group. Without sarcopenia, obese women showed higher ratio of radiographic knee OA. With sarcopenia, the coexistence of obesity presented higher ratio of radiographic knee OA, knee pain, and both compared to sarcopenia without obesity. The use of HT for more than one year was not associated with radiographic knee OA, knee pain, or both. Obesity with sarcopenia had greater effect on knee OA compared to obesity without sarcopenia. Moreover, HT use for more than one year was not associated with the prevalence of knee OA. Therefore, more efforts should focus on reducing body fat and increasing muscle in postmenopausal women with knee OA.

Muscle adaptation to sleeve gastrectomy: Potential role of nutritional supplementation and physical exercise

Skeletal muscle is metabolically and functionally flexible and contractile under normal conditions. Obesity is a risk factor that causes metabolic disorders and reduces muscle contractility. Sleeve gastrectomy (SG) has been used for surgical correction of obesity. This work aimed to investigate how obesity and its surgical correction affects skeletal muscle and the possible role of nutritional supplementation and physical exercise. Adult male albino rats were randomly divided into five groups, 8 rats per group: group Ia (control non-obese), group Ib (control obese), group II (post-operative, SG), group III (post SG + nutritional supplementation) and group IV (post SG + nutritional supplementation + physical exercise). SG resulted in cellular and metabolic degenerative disorders in the muscle including wasting, weakness and fibrosis with elevated inflammatory, oxidative and injury markers. Nutritional supplementation induced the post SG muscle regeneration indicated by high expression of insulin growth factor-1 (IGF-1) and myogenin and low expression of transforming growth factor beta 1 (TGF-β1). Interestingly, it improved the metabolic state of the muscle by reducing the oxidative stress, inflammatory and muscle injury markers and delaying the onset of fatigue. What is more, physical exercise along with nutritional supplementation resulted in further improvement of the muscle metabolic state and function. In conclusion, nutritional supplementations together with physical exercise after SG are essential for preserving muscle mass and contractility and improving its metabolic and functional status.

The impact of obesity on perioperative and postoperative outcomes after elective endovascular abdominal aortic aneurysm repair

Background Obesity is a common and growing health problem in vascular surgery patients, as it is in all patient groups. Evidence regarding body mass index (BMI) on endovascular aneurysm repair (EVAR) outcomes is not clear in the literature. We aimed to determine the impact of obesity on perioperative and midterm outcomes of elective EVAR between obese and non-obese patients. Methods Under a retrospective study design, a total of 120 patients (109 males, 11 females, mean age: 74.45 ± 8.59 (53–92 years)) undergoing elective EVAR between June 2012 and May 2020 were reviewed. Patients were stratified into two groups: obese (defined as a body mass index (BMI) ≥ 30 kg/m2) and non-obese (mean BMI < 30 kg/m2 (32.25 ± 1.07 kg/m2 vs 25.85 ± 2.69 kg/m2)). Results Of the 120 patients included in the study, 81 (67.5%) were defined as “nonobese,” while 39 (32.5%) were obese. The mean BMI of the study group was 27.93 ± 3.78 kg/m2. In obese patients, the procedure time, fluoroscopy time, and dose area product (DAP) values were longer than those of non-obese patients: 89.74 ± 20.54 vs 79.69 ± 28.77 min ( p = 0.035), 33.23 ± 10.14 vs 38.17 ± 8.61 min ( p = 0.01) and 133.69 ± 58.17 vs 232.56 ± 51.87 Gy.cm2 ( p < 0.001). Although there was no difference in sac shrinkage at 12-month follow-up, there was a significant decrease at 6-month follow-up in both groups ( p = 0.017). Endoleak occurred in 17.9% ( n = 7) of the obese group versus 11.1% ( n = 9) of the non-obese group ( p = 0.302). Iliac branch occlusion developed in four patients, 3 (3.7%) in the non-obese group and 1 (2.6%) in the obese group ( p = 0.608). The all-cause mortality rate was slightly higher in the obese group; however, it did not differ between the groups ( p = 0.463). Conclusion In addition to the longer procedure times, fluoroscopy times, and DAP values in obese patients, regardless of obesity, significant sac shrinkage in the first 6 months of follow-up was observed in both groups. No difference was documented with regards to mortality or morbidity following EVAR.

Omentin-1 Levels in Obesity

Omentin-1 is an anti-inflammatory adipokine secreted by stromal vascular cells. Inflammation and apoptosis of adipocyte tissue in obesity lead to decreased production of omentin-1. This study aims to find the difference in omentin-1 levels in the obese and non-obese groups and the correlation between levels of omentin-1 with BMI and waist circumference. This study was a cross-sectional study involving 70 subjects with 37 people in the obese group and 33 people in the non-obese group. Anthropometric data including weight, height, waist circumference, and BMI were measured. Serum omentin-1 levels were measured by ELISA. The statistical tests used were Chi-square, T-test, Mann-Whitney test, and Spearman test. Test results were significant if p-value < 0.05. Significant difference was observed in serum omentin-1 levels between obese and non-obese group (median 140,31 range (88.08 – 382.76) vs. 210,97 range (124,44–577,96) ng/mL), respectively; p < 0.001). Serum omentin-1 correlated negatively with BMI (p=0.001, r = - 0.398) and waist circumference (p=0.017, r = - 0.286). Obesity causes inflammation and increased death of adipocyte tissues due to apoptosis, autophagy, and fibrosis resulting in decreased production of omentin-1 by stromal vascular cells. Anthropometric parameters of waist circumference and BMI describe the distribution of adipocyte tissue and affect the secretion of omentin-1. Omentin-1 levels in the obese group were lower than in the non-obese group. The higher the BMI and waist circumference, the lower the omentin-1 level.

Study of the Prevalence of Obesity and Its Association with Maternal and Neonatal Characteristics and Morbidity Profile in a Population of Moroccan Pregnant Women

Obesity is a real public health problem whose prevalence continues to increase throughout the world. It affects all age groups and does not spare pregnant women. This work aims to determine the prevalence of obesity and to study its association with maternal and neonatal characteristics and the morbidity profile of pregnancy. This is a descriptive and cross-sectional study carried out in the maternity ward of the prefectural hospital center called “Sidi Lahcen” in Témara, Morocco, over a 12-month period. Maternal and neonatal data are collected through a preestablished questionnaire, and anthropometric parameters were recorded. 390 participants, aged between 18 and 43 years, were included in this study, with a prevalence of overweight and obesity of 34.9% and 41%, respectively. Correlation results revealed that the prevalence of overweight and obesity was significantly elevated in women over 25 years p < 0.001 . The rate of caesarean section was four times higher in obese women compared to women of normal weight (53.8% versus 12.8%; p = 0.018 ). The over-term was significantly high in the obese group compared to the nonobese group (33.8% versus 20.2%; p = 0.013 ). A statistically significant positive correlation was found between gestational body mass index and newborn birth weight (r = 0.29; p < 0.001 ) as well as a high prevalence of macrosomia in newborns of comparatively obese women compared to newborns of nonobese women (17.6% versus 9.6%; p = 0.041 ). The correlation analysis with the morbidity profile showed a significantly high preponderance of gestational diabetes, anemia, and toxemia of pregnancy in the obese group compared to the normal group p < 0.001 . This study clearly demonstrated that obesity during pregnancy is associated with higher risks of maternal and neonatal complications, the management of which places a burden on the health system as well as families. These data reinforce the need to improve antenatal care for the prevention of obesity and its preventable complications.