scholarly journals Potential Adverse Effects of Female and Male Obesity on Fertility: A Narrative Review

2020 ◽  
Vol 18 (3) ◽  
Author(s):  
Mina Amiri ◽  
Fahimeh Ramezani Tehrani
Keyword(s):  
Weight Loss ◽  
Adverse Effects ◽  
Sperm Quality ◽  
Educational Interventions ◽  
Normal Weight ◽  
Overweight And Obesity ◽  
Reproductive Age ◽  
Miscarriage Rate ◽  
First Line Therapy ◽  
The Impact

Context: Despite several studies documenting that obesity affects female and male fertility and leads to multiple adverse reproductive outcomes, the mechanisms involved are not elucidated. We aimed to summarize the potential adverse effects of female and male obesity, as well as the impact of weight loss on their fertility status. Evidence Acquisition: This review summarizes papers investigating the potential adverse effects of female and male obesity and the impact of weight-loss interventions on fertility among reproductive age populations. PubMed, Scopus, Web of Science, and Google Scholar databases were searched for retrieving studies published up to November 2019 on obesity/overweight among reproductive age populations. Results: The review of 68 studies revealed that female and male obesity/overweight increases the risk of sub-fecundity and infertility. The destructive effects of female obesity on reproduction are attributed to a variety of ovarian and extra-ovarian factors. In women with overweight or obesity, the time taken to conceive is longer, and they have a decreased fertility rate, increased requirement for gonadotropins, and higher miscarriage rate when compared to those with normal weight. Male obesity may lead to subfertility, mainly because of the disruption of the hypothalamus-pituitary-gonadal (HPG) axis, increased testicular temperature, impairment of the physical and molecular structure of sperm, decreased sperm quality, and erectile dysfunction due to peripheral vascular disease. Most studies recommend lifestyle interventions as first-line therapy in the general population of women and men with obesity and infertility. Conclusions: This study shows the negative effects of female and male overweight and obesity on fertility. Therefore, educational interventions on the adverse effects of obesity and the benefits of weight reduction, such as increasing pregnancy rate, should be considered for couples seeking fertility.

scholarly journals Double Burden of Malnutrition among Chinese Women of Reproductive Age and Their Social Determinants

Nutrients ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 3102
Author(s):  
Jingqi Song ◽  
Ji Zhang ◽  
Wafaie Fawzi ◽  
Yangmu Huang
Keyword(s):  
Normal Weight ◽  
Overweight And Obesity ◽  
Living Environment ◽  
Reproductive Age ◽  
Women Of Reproductive Age ◽  
Double Burden ◽  
Community Factors ◽  
Wide Range ◽  
Double Burden Of Malnutrition ◽  
The Impact

This study aimed to examine the impact of a wide range of demographic, socioeconomic, and community factors on the double burden of malnutrition among women of reproductive age using longitudinal data. We used data about 11,348 women of reproductive age who participated in the China Health and Nutrition Survey (CHNS), a longitudinal survey, between 1989 and 2015. Nutritional outcomes were categorized into four groups, namely underweight, normal weight, overweight, and obesity, with normal weight as reference. A multinomial logit model was fitted due to geographic clustering and repeated observations of individuals. The prevalence of underweight decreased over time from 1991 but has tended to rise again since 2004, while the prevalence of overweight/obesity continued to rise between 1991 and 2015. Improved individual factors, socioeconomic status, and community urbanization reduced the risk of underweight but elevated the risk of overweight and obesity. The medium levels, rather than the highest levels, of household income and community urbanization are associated with a higher risk of overweight and obesity. The notable increase in underweight prevalence is a cause for concern to be addressed along with efforts to curb the rising tide of overweight. In order to enhance the nutritional status of women of reproductive age, it is essential to improving the community environment, levels of education, and living environment from a wider context. Long-term and targeted plans are urgently needed for nutrition improvements among the different populations.

scholarly journals Obesity, energy balance and spermatogenesis

Reproduction ◽  
2017 ◽  
Vol 153 (6) ◽  
pp. R173-R185 ◽  
Author(s):  
Pedro F Oliveira ◽  
Mário Sousa ◽  
Branca M Silva ◽  
Mariana P Monteiro ◽  
Marco G Alves
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Energy Balance ◽  
Molecular Mechanisms ◽  
Sperm Quality ◽  
Reproductive Potential ◽  
Massive Weight Loss ◽  
Overweight And Obesity ◽  
Lifestyle Modifications ◽  
The Impact

Obesity has grown to pandemic proportions. It affects an increasing number of children, adolescents and young adults exposed to the silent comorbidities of this disorder for a longer period. Infertility has arisen as one important comorbidity associated with the energy dysfunction promoted by obesity. Spermatogenesis is a highly regulated process that is determined by specific energetic requirements. The reproductive potential of males relies on hormonal-dependent and -independent stimuli that control sperm quality. There are conflicting data concerning the impact of male overweight and obesity on sperm quality, as well as on the possible paternal-induced epigenetic trait inheritance of obesity. In addition, it remains a matter of debate whether massive weight loss induced by lifestyle interventions, drugs or bariatric surgery may or may not benefit obese men seeking fatherhood. Herein, we propose to discuss how energy balance may modulate hormonal signalling and sperm quality in overweight and obese men. We also discuss some molecular mechanisms that mediate obesity-related dysfunction in male reproductive system and how paternal obesity may lead to trait inheritance. Finally, we will discuss how lifestyle modifications and sustained weight loss, particularly the loss achieved by bariatric surgery, may revert some of the deleterious effects of obesity in men and their offspring.

The Impact of Weight Labels on Body Image, Internalized Weight Stigma, Affect, Perceived Health, and Intended Weight Loss Behaviors in Normal-Weight and Overweight College Women

2016 ◽  
Vol 31 (6) ◽  
pp. 484-490 ◽  
Author(s):  
Jamal H. Essayli ◽  
Jessica M. Murakami ◽  
Rebecca E. Wilson ◽  
Janet D. Latner
Keyword(s):  
Weight Loss ◽  
Body Image ◽  
Negative Affect ◽  
Perceived Health ◽  
Normal Weight ◽  
Weight Stigma ◽  
The Body ◽  
Actual Weight ◽  
Main Effects ◽  
The Impact

Purpose: To explore the psychological impact of weight labels. Design: A double-blind experiment that randomly informed participants that they were “normal weight” or “overweight.” Setting: Public university in Honolulu, Hawai‘i. Participants: Normal-weight and overweight female undergraduates (N = 113). Measures: The Body Image States Scale, Stunkard Rating Scale, Weight Bias Internalization Scale, Positive and Negative Affect Schedule, General Health question from the 12-item Short Form Health Survey, modified version of the Weight Loss Methods Scale, and a manipulation check. Analysis: A 2 × 2 between-subjects analysis of variance explored the main effects of the assigned weight label and actual weight and interactions between assigned weight label and actual weight. Results: Significant main effects of the assigned weight label emerged on measures of body dissatisfaction, F(1, 109) = 12.40, p = .001, [Formula: see text] = 0.10, internalized weight stigma, F(1, 108) = 4.35, p = .039, [Formula: see text] = .04, and negative affect, F(1, 108) = 9.22, p = .003, [Formula: see text] = .08. Significant assigned weight label × actual weight interactions were found on measures of perceived body image, F(1, 109) = 6.29, p = .014, [Formula: see text] = .06, and perceived health, F(1, 109) = 4.18, p = .043, [Formula: see text] = .04. Conclusion: A weight label of “overweight” may have negative psychological consequences, particularly for overweight women.

scholarly journals The Impact of Overweight and Obesity on Plantar Pressure in Children and Adolescents: A Systematic Review

2020 ◽  
Vol 17 (18) ◽  
pp. 6600
Author(s):  
Liliana Catan ◽  
Elena Amaricai ◽  
Roxana Ramona Onofrei ◽  
Calin Marius Popoiu ◽  
Emil Radu Iacob ◽  
...  
Keyword(s):  
Children And Adolescents ◽  
Plantar Pressure ◽  
Normal Weight ◽  
Overweight And Obesity ◽  
Obese Children ◽  
Functional Changes ◽  
Time Integral ◽  
Systems Software ◽  
Study Characteristics ◽  
The Impact

We aimed to synthesise the results of previous studies addressing the impact of overweight and obesity on plantar pressure in children and adolescents. An electronic search of scientific literature was conducted using PubMed, Cochrane and Scopus database, with keywords: “plantar pressure” AND “children” AND “obesity”; “plantar pressure” AND “adolescents” AND “obesity”, “plantar pressure” AND “children” AND “overweight”, “plantar pressure” AND “adolescents” AND “overweight”. Twenty-two articles were included in the review and the following data were recorded: authors, publication year, type of technology (systems, software) for the determination of plantar pressure, study characteristics. Most of the articles used dynamic plantar pressure determination with only four using static plantar pressure measurement. Using ultrasonography with static plantar pressure determination, the correlation between structural and functional changes in the feet of obese children. In overweight and obese children and adolescents, important findings were recorded: higher contact area, increased maximum force beneath the lateral and medial forefoot, increased pressure–time integral beneath the midfoot and 2nd–5th metatarsal regions. Significantly increased foot axis angle and significantly flatter feet were observed in obese subjects in comparison to their normal-weight counterparts. The obese children presented increased midfoot fat pad thickness, with decreased sensitivity of the whole foot and midfoot.

scholarly journals Impact of hypocaloric dietary intervention on ovulation in obese women with PCOS

Reproduction ◽  
2017 ◽  
Vol 153 (1) ◽  
pp. R15-R27 ◽  
Author(s):  
Brittany Y Jarrett ◽  
Marla E Lujan
Keyword(s):  
Weight Loss ◽  
Dietary Intervention ◽  
Polycystic Ovary ◽  
Reproductive Function ◽  
Antral Follicle ◽  
Reproductive Age ◽  
Obese Women ◽  
Dietary Interventions ◽  
Wide Range ◽  
The Impact

Polycystic ovary syndrome (PCOS) is a common cause of ovulatory dysfunction affecting women of reproductive age. Obesity and insulin resistance are thought to potentiate disruptions in antral follicle development that result in chronic anovulation, and as such, have become important therapeutic targets of dietary interventions aimed at weight loss. Caloric restriction has been shown to promote sporadic ovulation in obese women with PCOS, but improvements have occurred across a wide range of patients and little has been garnered about the factors that distinguish responders from non-responders. Further, few studies have evaluated the likelihood for modest weight loss to restore normal ovulatory cyclicity in PCOS. Consensus regarding the impact of dietary intervention on ovulation has been limited by variability in the measures used to characterize and report ovulatory status across studies. In response, this review provides an assessment of the evidence surrounding the effectiveness of hypocaloric dietary intervention to normalize ovulatory function in PCOS. The impact of physiological vs methodological factors on the evaluation of ovulatory status is discussed, and recommendations to strengthen future studies in this area are provided. Ultimately, further research is needed to understand the optimal dietary or lifestyle approaches that promote ovulation and sustained improvements in reproductive function in PCOS.

scholarly journals The Effectiveness of Supportive Psychotherapy in Weight Loss in a Group of Young Overweight and Obese Women

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 532
Author(s):  
Krzysztof Juchacz ◽  
Patrycja Kłos ◽  
Violetta Dziedziejko ◽  
Rafał W. Wójciak
Keyword(s):  
Weight Loss ◽  
Overweight And Obesity ◽  
Obese Women ◽  
Supportive Psychotherapy ◽  
Diet Plan ◽  
Sustained Effect ◽  
Group A ◽  
The Impact ◽  
Loss Effect

Overweight and obesity are among the most widespread health problems worldwide. The primary cause of obesity is an inability to control overeating. Therefore, today, obesity needs to be treated more as an eating disorder, i.e., a mental disorder, and thus, it should be approached as such. Taking the above together, this study aimed to assess the impact of supportive psychotherapy on reducing body weight in young overweight and obese women who attempted slimming therapy and, additionally, the possibility of maintaining the weight-loss effect in the long term. Sixty young women aged 20–30 were randomized into three groups that differed in therapeutic management. With the help of an individually selected diet plan, the highest effectiveness in weight loss was demonstrated in people whose weight reduction was supported by goal-oriented psychotherapy. In this group, a sustained effect of slimming and even further weight loss were observed six months following the discontinuation of the therapy. In conclusion, traditional slimming therapies using an individual diet plan and a dietitian’s care are effective; however, supportive psychotherapeutic work provides more beneficial results and maintains the change from a long-term perspective.

Psychological Well-Being, Health Behaviors, and Weight Loss Among Participants in a Residential, Kripalu Yoga-Based Weight Loss Program

2012 ◽  
Vol 22 (1) ◽  
pp. 9-22 ◽  
Author(s):  
Tosca Braun ◽  
Crystal Park ◽  
Lisa Ann Conboy
Keyword(s):  
Weight Loss ◽  
Health Behaviors ◽  
Well Being ◽  
The United States ◽  
Overweight And Obesity ◽  
Weight Loss Program ◽  
Health Concern ◽  
Psychological Well Being ◽  
The Impact

The increasing prevalence of overweight and obesity in humans is a growing public health concern in the United States. Concomitants include poor health behaviors and reduced psychological well-being. Preliminary evidence suggests yoga and treatment paradigms incorporating mindfulness, self-compassion (SC), acceptance, non-dieting, and intuitive eating may improve these ancillary correlates, which may promote long-term weight loss. Methods: We explored the impact of a 5-day residential weight loss program, which was multifaceted and based on Kripalu yoga, on health behaviors, weight loss, and psychological well-being in overweight/obese individuals. Thirty-seven overweight/obese program participants (age 32-65, BMI<25) completed validated mind-fulness, SC, lifestyle behavior, and mood questionnaires at baseline, post-program, and 3-month follow-up and reported their weight 1 year after program completion. Results: Significant improvements in nutrition behaviors, SC, mindfulness, stress management, and spiritual growth were observed immediately post-program (n = 31, 84% retention), with medium to large effect sizes. At 3-month follow-up (n = 18, 49% retention), most changes persisted. Physical activity and mood disturbance had improved significantly post-program but failed to reach significance at 3-month follow-up. Self-report weight loss at 1 year (n = 19, 51% retention) was significant. Conclusion: These findings suggest a Kripalu yoga-based, residential weight loss program may foster psychological well-being, improved nutrition behaviors, and weight loss. Given the exploratory nature of this investigation, more rigorous work in this area is warranted.

scholarly journals Body Mass Index and Weight Change in Patients With HER2-Positive Early Breast Cancer: Exploratory Analysis of the ALTTO BIG 2-06 Trial

2021 ◽  
Vol 19 (2) ◽  
pp. 181-189
Author(s):  
Samuel Martel ◽  
Matteo Lambertini ◽  
Dominique Agbor-Tarh ◽  
Noam F. Ponde ◽  
Andrea Gombos ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Weight Loss ◽  
Early Breast Cancer ◽  
Weight Change ◽  
Disease Free Survival ◽  
Normal Weight ◽  
Her2 Positive ◽  
Free Survival ◽  
The Impact ◽  
Disease Free

Background: The association between obesity and prognosis in HER2-positive early breast cancer remains unclear, with limited data available. This study aimed to determine the impact of body mass index (BMI) at baseline and weight change after 2 years on outcomes of patients with HER2-positive early breast cancer. Methods: ALTTO was a randomized phase III trial in patients with HER2-positive early breast cancer. BMI was collected at randomization and 2 years after. WHO BMI categories were used: underweight, <18.5 kg/m2; normal weight, 18.5 to <25 kg/m2; overweight, ≥25 to <30 kg/m2; and obese ≥30 kg/m2. A weight change from baseline of ≥5.0% and ≤5.0% was categorized as weight gain and weight loss. The impact of BMI at randomization and of weight change on disease-free survival (DFS), distant disease-free survival (DDFS), and overall survival (OS) were investigated with multivariate analyses, adjusting for baseline patients and tumor characteristics. Results: A total of 8,381 patients were included: 187 (2.2%), 3,797 (45.3%), 2,690 (32.1%), and 1,707 (20.4%) were underweight, normal weight, overweight, and obese at baseline, respectively. Compared with normal weight, being obese at randomization was associated with a significantly worse DDFS (adjusted hazard ratio [aHR], 1.25; 95% CI, 1.04–1.50) and OS (aHR, 1.27; 95% CI, 1.01–1.60), but no significant difference in DFS (aHR, 1.14; 95% CI, 0.97–1.32). Weight loss ≥5.0% at 2 years after randomization was associated with significantly poorer DFS (aHR, 1.34; 95% CI, 1.05–1.71), DDFS (aHR, 1.46; 95% CI, 1.07–1.98), and OS (aHR, 1.83; 95% CI, 1.18–2.84). Hormone receptor and menopausal status but not anti-HER2 treatment type influenced outcomes. Toxicities were more frequent in obese patients. Conclusions: In patients with HER2-positive early breast cancer, obesity at baseline is a poor prognostic factor. Weight loss during treatment and follow-up negatively impacts clinical outcomes. Dietary counseling should be part of survivorship care programs.

scholarly journals Impact of adult weight management interventions on mental health: a systematic review and meta-analysis protocol

BMJ Open ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. e031857
Author(s):  
Rebecca A Jones ◽  
Emma R Lawlor ◽  
Simon J Griffin ◽  
Esther M F van Sluijs ◽  
Amy L Ahern
Keyword(s):  
Mental Health ◽  
Systematic Review ◽  
Weight Loss ◽  
Weight Management ◽  
English Language ◽  
Meta Analysis ◽  
Overweight And Obesity ◽  
Primary Data ◽  
Management Interventions ◽  
The Impact

IntroductionThe effects of interventions targeting weight loss on physical health are well described, yet the evidence for mental health is less clear. It is essential to better understand the impact of weight management interventions on mental health to optimise care and minimise risk of harm. We will assess the effect of behavioural weight management interventions on mental health in adults with overweight and obesity.Methods and analysisThe systematic review will follow the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidance. We will include behavioural weight management interventions with a diet and/or physical activity component focusing on weight loss for adults with a body mass index ≥25 kg/m2. Randomised controlled trials (RCTs) and cluster RCTs will be the only eligible study designs. Outcomes of interest will be related to mental health. The following databases were searched from inception to 07 May 2019: MEDLINE, Embase, Cochrane database (CENTRAL), PsycINFO, ASSIA, AMED and CINAHL. The search strategy was based on four concepts: (1) adults, defined as ≥18 years, with overweight/obesity, defined as BMI ≥25kg/m², (2) weight management interventions, (3) mental health outcomes and (4) study design. The search was restricted to English-language published papers, with no other restrictions applied. Two stage screening for eligibility will be completed by two independent reviewers, with two independent reviewers completing data extraction and risk of bias assessment. Data permitting, a random-effects meta-analysis of outcomes, subgroup analyses and meta-regression will be conducted. If not appropriate, narrative synthesis and ‘levels of evidence’ assessment will be completed.Ethics and disseminationEthical approval is not required as primary data will not be collected. The completed systematic review will be disseminated in a peer-reviewed journal, at conferences and contribute towards the lead author’s PhD thesis.PROSPERO registration numberCRD42019131659.

scholarly journals Secular Trends of the Impact of Overweight and Obesity on Hypertension in Yi People: Yi Migrant Study, 1996–2015

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Jia Zhang ◽  
Shaoping Wan ◽  
Fen Dong ◽  
Li Pan ◽  
Wuli Yihuo ◽  
...  
Keyword(s):  
Blood Pressure Level ◽  
Normal Weight ◽  
Overweight And Obesity ◽  
Cross Sectional ◽  
Continuous Increase ◽  
Hypertension Risk ◽  
Period 2 ◽  
Obese Population ◽  
Using Data ◽  
The Impact

Background. Rising hypertension prevalence, coupled with increasing overweight and obesity rates, has been observed in Yi people. Moreover, the growing blood pressure level among Yi people was mostly attributable to the continuous increase of body mass index (BMI). However, little is known about the trend of association between them. Methods. Consequently, we investigated the impact of overweight/obesity on hypertension over three periods (1996, 2007-2008, 2015) using data from Yi Migrant Study (n = 8749). The Yi Migrant Study incorporated three successive cross-sectional studies which were implemented by the same team with consistent protocols. Results. Compared with period 1 (1996), the influence of overweight/obesity on hypertension risk significantly increased in period 2 (2007-2008) and period 3 (2015); relative excess risk due to interaction (RERI) was 1.59 (95% CI: 0.12, 3.05) and 1.41 (95% CI: 0.30, 2.78), respectively. Meanwhile, the overweight/obese population in period 3 did not show hypertension risk higher than that in period 2 (RERI = 0.15; 95% CI: −0.76, 1.07). Additionally, we observed a continuously growing trend of hypertension risk among normal weight Yi people. Conclusions. During the past two decades, there was a significant increase in the association between overweight/obesity and hypertension in Yi people, whereas the increasing trend has leveled off in more recent years. These findings suggest that overweight/obesity and hypertension are becoming more epidemic comorbidity over time. Interventions to prevent hypertension should focus not only on the overweight/obese population, but also on those with normal weight.

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